diff --git a/basis/Real.571.sml b/basis/Real.571.sml deleted file mode 100644 index 361b940a..00000000 --- a/basis/Real.571.sml +++ /dev/null @@ -1,623 +0,0 @@ -(* - Title: Standard Basis Library: Real Signature and structure. - Author: David Matthews - Copyright David Matthews 2000, 2005, 2008, 2016-17 - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License version 2.1 as published by the Free Software Foundation. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -*) - -structure Real: REAL = -struct - open IEEEReal - val fromLargeInt: LargeInt.int -> real = Real.rtsCallFastI_F "PolyFloatArbitraryPrecision" - - val fromInt: int -> real = - (* We have to select the appropriate conversion. This will be - reduced down to the appropriate function but has to be - type-correct whether int is arbitrary precision or fixed - precision. Hence the "o Large/FixedInt.fromInt". *) - if Bootstrap.intIsArbitraryPrecision - then fromLargeInt o LargeInt.fromInt - else Real.fromFixedInt o FixedInt.fromInt - - (* These are needed because we don't yet have conversion from string - to real. They are filtered out by the signature. *) - val zero = fromInt 0 and one = fromInt 1 and four = fromInt 4 - - local - val doReal : int*real->real = RunCall.rtsCallFull2 "PolyRealGeneral" - in - fun callReal n x = doReal(n, x) - end - - local - val doReal : int*(real*real)->real = RunCall.rtsCallFull2 "PolyRealGeneral" - in - fun callRealReal n p = doReal(n, p) - end - - local - val doReal : int*real->bool = RunCall.rtsCallFull2 "PolyRealGeneral" - in - fun callRealToBool n x = doReal(n, x) - end - - local - val doReal : int*real->int = RunCall.rtsCallFull2 "PolyRealGeneral" - in - fun callRealToInt n x = doReal(n, x) - end - - type real = real (* Pick up from globals. *) - - structure Math: MATH = - struct - type real = real (* Pick up from globals. *) - val sqrt = Real.rtsCallFastF_F "PolyRealSqrt" - and sin = Real.rtsCallFastF_F "PolyRealSin" - and cos = Real.rtsCallFastF_F "PolyRealCos" - and atan = Real.rtsCallFastF_F "PolyRealArctan" - and exp = Real.rtsCallFastF_F "PolyRealExp" - and ln = Real.rtsCallFastF_F "PolyRealLog" - and tan = Real.rtsCallFastF_F "PolyRealTan" - and asin = Real.rtsCallFastF_F "PolyRealArcSin" - and acos = Real.rtsCallFastF_F "PolyRealArcCos" - and log10 = Real.rtsCallFastF_F "PolyRealLog10" - and sinh = Real.rtsCallFastF_F "PolyRealSinh" - and cosh = Real.rtsCallFastF_F "PolyRealCosh" - and tanh = Real.rtsCallFastF_F "PolyRealTanh" - - (* These have not yet been done. *) - val atan2 = callRealReal 3 - val pow = callRealReal 4 - - (* Derived values. *) - val e = exp one - val pi = four * atan one - - end; - - - infix 4 == != ?=; - - val op == = Real.== - val op != : real * real -> bool = not o op == - - val radix : int = callRealToInt 11 zero - val precision : int = callRealToInt 12 zero - val maxFinite : real = callReal 13 zero - val minNormalPos : real = callReal 14 zero - - val posInf : real = one/zero; - val negInf : real = ~one/zero; - - (* We only implement this sort of real. *) - fun toLarge (x: real) : (*LargeReal.*)real =x - fun fromLarge (_ : IEEEReal.rounding_mode) (x: (*LargeReal.*)real): real = x - - local - open Real - in - (* NAN values fail any test including equality with themselves. *) - fun isNan x = x != x - (* NAN values do not match and infinities when multiplied by 0 produce NAN. *) - fun isFinite x = x * zero == zero - - val signBit : real -> bool = callRealToBool 17 - val copySign : (real * real) -> real = callRealReal 18 - - (* If we assume that all functions produce normalised results where - possible, the only subnormal values will be those smaller than - minNormalPos. *) - fun isNormal x = isFinite x andalso abs x >= minNormalPos - - fun class x = - if isFinite x then if x == zero then ZERO - else if abs x >= minNormalPos then NORMAL - else SUBNORMAL - else if isNan x then NAN - else (* not finite and not Nan *) INF - - fun sign x = - if isNan x then raise General.Domain - else if x == zero then 0 else if x < zero then ~1 else 1 - end - - fun sameSign (x, y) = signBit x = signBit y - - fun unordered (x, y) = isNan x orelse isNan y - - (* Returns the minimum. In the case where one is a NaN it returns the - other. In that case the comparison will be false. *) - fun min (a: real, b: real): real = if a < b orelse isNan b then a else b - (* Similarly for max. *) - fun max (a: real, b: real): real = if a > b orelse isNan b then a else b - - fun checkFloat x = - if isFinite x then x - else if isNan x then raise General.Div else raise General.Overflow - - val radixAsReal (* Not exported *) = fromInt radix - val epsilon (* Not exported *) = Math.pow(radixAsReal, fromInt (Int.-(1, precision))) - - val minPos : real = minNormalPos*epsilon; - - local - val toMantissa : real->real = callReal 24 - and toExponent : real->int = callRealToInt 25 - - val doReal : int*(real*int)->real = RunCall.rtsCallFull2 "PolyRealGeneral" - - fun fromManAndExp (ri: real*int): real = doReal(23, ri) - - open Real - in - fun toManExp r = - if not (isFinite r) orelse r == zero - (* Nan, infinities and +/-0 all return r in the mantissa. - We include 0 to preserve its sign. *) - then {man=r, exp=0} - else {man=toMantissa r, exp=toExponent r} - - fun fromManExp {man, exp} = - if not (isFinite man) orelse man == zero - (* Nan, infinities and +/-0 in the mantissa all return - their argument. *) - then man - else fromManAndExp(man, exp) - end - - (* Convert to integer. Ideally this would do the rounding/truncation as part of the - conversion but it doesn't seem to be possible to detect overflow properly. - Instead we use the real rounding/truncation, convert to arbitrary - precision and then check for overflow if necessary. *) - local - (* The RTS function converts to at most a 64-bit value (even on - 32-bits). That will convert all the bits of the mantissa - but if the exponent is large we may have to multiply by - some power of two. *) - val realToInt: real -> LargeInt.int = RunCall.rtsCallFull1 "PolyRealBoxedToLongInt" - in - val realFloor = Real.rtsCallFastF_F "PolyRealFloor" - and realCeil = Real.rtsCallFastF_F "PolyRealCeil" - and realTrunc = Real.rtsCallFastF_F "PolyRealTrunc" - and realRound = Real.rtsCallFastF_F "PolyRealRound" - - fun toArbitrary x = - if isNan x then raise General.Domain - else if not (isFinite x) then raise General.Overflow - else - let - val { man, exp } = toManExp x - in - if exp <= precision - then realToInt x - else IntInf.<< (realToInt(fromManExp{man=man, exp=precision}), Word.fromInt(exp - precision)) - end - - fun floor x = toArbitrary(realFloor x) - (* Returns the largest integer <= x. *) - - fun ceil x = toArbitrary(realCeil x) - (* Returns the smallest integer >= x. *) - - fun trunc x = toArbitrary(realTrunc x) - (* Truncate towards zero. *) - - fun round x = toArbitrary(realRound x) - (* Return the nearest integer, returning an even value if equidistant. *) - - fun toLargeInt IEEEReal.TO_NEGINF r = floor r - | toLargeInt IEEEReal.TO_POSINF r = ceil r - | toLargeInt IEEEReal.TO_ZERO r = trunc r - | toLargeInt IEEEReal.TO_NEAREST r = round r - - fun toInt mode x = LargeInt.toInt(toLargeInt mode x) - - val floor = LargeInt.toInt o floor - and ceil = LargeInt.toInt o ceil - and trunc = LargeInt.toInt o trunc - and round = LargeInt.toInt o round - end; - - local - val realConv: string->real = RunCall.rtsCallFull1 "PolyRealBoxedFromString" - - val posNan = abs(zero / zero) - val negNan = ~posNan - in - fun fromDecimal { class = INF, sign=true, ...} = SOME negInf - | fromDecimal { class = INF, sign=false, ...} = SOME posInf - | fromDecimal { class = ZERO, sign=true, ...} = SOME (~ zero) - | fromDecimal { class = ZERO, sign=false, ...} = SOME zero - (* Generate signed Nans ignoring the digits and mantissa. There - was code here to set the mantissa but there's no reference to - that in the current version of the Basis library. *) - | fromDecimal { class = NAN, sign=true, ... } = SOME negNan - | fromDecimal { class = NAN, sign=false, ... } = SOME posNan - - | fromDecimal { class = _ (* NORMAL or SUBNORMAL *), sign, digits, exp} = - (let - fun toChar x = - if x < 0 orelse x > 9 then raise General.Domain - else Char.chr (x + Char.ord #"0") - (* Turn the number into a string. *) - val str = "0." ^ String.implode(List.map toChar digits) ^"E" ^ - Int.toString exp - (* Convert it to a real using the RTS conversion function. - Change any Conversion exceptions into Domain. *) - val result = realConv str handle RunCall.Conversion _ => raise General.Domain - in - if sign then SOME (~result) else SOME result - end - handle General.Domain => NONE - ) - end - - local - val dtoa: real*int*int -> string*int*int = RunCall.rtsCallFull3 "PolyRealBoxedToString" - open StringCvt - - fun addZeros n = - if n <= 0 then "" else "0" ^ addZeros (n-1) - - fun fixFmt ndigs r = - if isNan r then "nan" - else if not (isFinite r) - then if r < zero then "~inf" else "inf" - else - let - (* Try to get ndigs past the decimal point. *) - val (str, exp, sign) = dtoa(r, 3, ndigs) - val strLen = String.size str - (* If the exponents is negative or zero we need to put a zero - before the decimal point. If the exponent is positive and - less than the number of digits we can take that - many characters off, otherwise we have to pad with zeros. *) - val numb = - if exp <= 0 - then (* Exponent is zero or negative - all significant digits are - after the decimal point. Put in any zeros before - the significant digits, then the significant digits - and then any trailing zeros. *) - if ndigs = 0 then "0" - else "0." ^ addZeros(~exp) ^ str ^ addZeros(ndigs-strLen+exp) - else if strLen <= exp - then (* Exponent is not less than the length of the string - - all significant digits are before the decimal point. Add - any extra zeros before the decimal point then zeros after it. *) - str ^ addZeros(exp-strLen) ^ - (if ndigs = 0 then "" else "." ^ addZeros ndigs) - else (* Significant digits straddle the decimal point - insert the - decimal point and add any trailing zeros. *) - String.substring(str, 0, exp) ^ "." ^ - String.substring(str, exp, strLen-exp) ^ - addZeros(ndigs-strLen+exp) - in - if sign <> 0 then "~" ^ numb else numb - end - - fun sciFmt ndigs r = - if isNan r then "nan" - else if not (isFinite r) - then if r < zero then "~inf" else "inf" - else - let - (* Try to get ndigs+1 digits. 1 before the decimal point and ndigs after. *) - val (str, exp, sign) = dtoa(r, 2, ndigs+1) - val strLen = String.size str - fun addZeros n = - if n <= 0 then "" else "0" ^ addZeros (n-1) - val numb = - if strLen = 0 - then "0" ^ (if ndigs = 0 then "" else "." ^ addZeros ndigs) ^ "E0" - else - (if strLen = 1 - then str ^ (if ndigs = 0 then "" else "." ^ addZeros ndigs) - else String.substring(str, 0, 1) ^ "." ^ - String.substring(str, 1, strLen-1) ^ addZeros (ndigs-strLen+1) - ) ^ "E" ^ Int.toString (exp-1) - in - if sign <> 0 then "~" ^ numb else numb - end - - fun genFmt ndigs r = - if isNan r then "nan" - else if not (isFinite r) - then if r < zero then "~inf" else "inf" - else - let - (* Try to get ndigs digits. *) - val (str, exp, sign) = dtoa(r, 2, ndigs) - val strLen = String.size str - val numb = - (* Have to use scientific notation if exp > ndigs. Also use it - if the exponent is small (TODO: adjust this) *) - if exp > ndigs orelse exp < ~5 - then (* Scientific format *) - (if strLen = 1 then str - else String.substring(str, 0, 1) ^ "." ^ - String.substring(str, 1, strLen-1) - ) ^ "E" ^ Int.toString (exp-1) - - else (* Fixed format (N.B. no trailing zeros are added after the - decimal point apart from one if necessary) *) - if exp <= 0 - then (* Exponent is zero or negative - all significant digits are - after the decimal point. Put in any zeros before - the significant digits, then the significant digits - and then any trailing zeros. *) - "0." ^ addZeros(~exp) ^ str - else if strLen <= exp - then (* Exponent is not less than the length of the string - - all significant digits are before the decimal point. Add - any extra zeros before the decimal point. Insert .0 at the - end to make it a valid real number. *) - str ^ addZeros(exp-strLen) ^ ".0" - else (* Significant digits straddle the decimal point - insert the - decimal point. *) - String.substring(str, 0, exp) ^ "." ^ - String.substring(str, exp, strLen-exp) - in - if sign <> 0 then "~" ^ numb else numb - end - - fun strToDigitList str = - let - fun getDigs i l = - if i < 0 then l - else getDigs (i-1) - ((Char.ord(String.sub(str, i)) - Char.ord #"0") :: l) - in - getDigs (String.size str - 1) [] - end - in - fun toDecimal r = - let - val sign = signBit r - val kind = class r - in - case kind of - ZERO => { class = ZERO, sign = sign, digits=[], exp = 0 } - | INF => { class = INF, sign = sign, digits=[], exp = 0 } - | NAN => { class = NAN, sign = sign, digits=[], exp = 0 } - | _ => (* NORMAL/SUBNORMAL *) - let - val (str, exp, sign) = dtoa(r, 0, 0) - val digits = strToDigitList str - in - { class = kind, sign = sign <> 0, digits = digits, exp = exp } - end - end - - (* Note: The definition says, reasonably, that negative values - for the number of digits raises Size. The tests also check - for a very large value for the number of digits and seem to - expect Size to be raised in that case. Note that the exception - is raised when fmt spec is evaluated and before it is applied - to an actual real argument. - In all cases, even EXACT format, this should produce "nan" for a NaN - and ignore the sign bit. *) - fun fmt (SCI NONE) = sciFmt 6 - | fmt (SCI (SOME d) ) = - if d < 0 orelse d > 200 then raise General.Size - else sciFmt d - | fmt (FIX NONE) = fixFmt 6 - | fmt (FIX (SOME d) ) = - if d < 0 orelse d > 200 then raise General.Size - else fixFmt d - | fmt (GEN NONE) = genFmt 12 - | fmt (GEN (SOME d) ) = - if d < 1 orelse d > 200 then raise General.Size - else genFmt d - | fmt EXACT = (fn r => if isNan r then "nan" else IEEEReal.toString(toDecimal r)) - - val toString = fmt (GEN NONE) - end - - - fun scan getc src = - let - (* Return a list of digits. *) - fun getdigits inp src = - case getc src of - NONE => (List.rev inp, src) - | SOME(ch, src') => - if ch >= #"0" andalso ch <= #"9" - then getdigits ((Char.ord ch - Char.ord #"0") :: inp) src' - else (List.rev inp, src) - - (* Read an unsigned integer. Returns NONE if no digits have been read. *) - fun getNumber sign digits acc src = - case getc src of - NONE => if digits = 0 then NONE else SOME(if sign then ~acc else acc, src) - | SOME(ch, src') => - if ch >= #"0" andalso ch <= #"9" - then getNumber sign (digits+1) (acc*10 + Char.ord ch - Char.ord #"0") src' - else if digits = 0 then NONE else SOME(if sign then ~acc else acc, src') - - (* Return the signed exponent. *) - fun getExponent src = - case getc src of - NONE => NONE - | SOME(ch, src') => - if ch = #"+" - then getNumber false 0 0 src' - else if ch = #"-" orelse ch = #"~" - then getNumber true 0 0 src' - else getNumber false 0 0 src - - fun read_number sign src = - case getc src of - NONE => NONE - | SOME(ch, _) => - if not (ch >= #"0" andalso ch <= #"9" orelse ch = #".") - then NONE (* Bad *) - else (* Digits or decimal. *) - let - (* Get the digits before the decimal point (if any) *) - val (intPart, srcAfterDigs) = getdigits [] src - (* Get the digits after the decimal point (if any). - If there is a decimal point we only accept it if - there is at least one digit after it. *) - val (decimals, srcAfterMant) = - case getc srcAfterDigs of - NONE => ([], srcAfterDigs) - | SOME (#".", srcAfterDP) => - ( (* Check that the next character is a digit. *) - case getc srcAfterDP of - NONE => ([], srcAfterDigs) - | SOME(ch, _) => - if ch >= #"0" andalso ch <= #"9" - then getdigits [] srcAfterDP - else ([], srcAfterDigs) - ) - | SOME (_, _) => ([], srcAfterDigs) - (* The exponent is optional. If it doesn't form a valid - exponent we return zero as the value and the - continuation is the beginning of the "exponent". *) - val (exponent, srcAfterExp) = - case getc srcAfterMant of - NONE => (0, srcAfterMant) - | SOME (ch, src'''') => - if ch = #"e" orelse ch = #"E" - then - ( - case getExponent src'''' of - NONE => (0, srcAfterMant) - | SOME x => x - ) - else (0, srcAfterMant) - (* Generate a decimal representation ready for conversion. - We don't bother to strip off leading or trailing zeros. *) - val decimalRep = {class=NORMAL, sign=sign, - digits=List.@(intPart, decimals), - exp=exponent + List.length intPart} - in - case fromDecimal decimalRep of - SOME r => SOME(r, srcAfterExp) - | NONE => NONE - end - in - case getc src of - NONE => NONE - | SOME(ch, src') => - if Char.isSpace ch (* Skip white space. *) - then scan getc src' (* Recurse *) - else if ch = #"+" (* Remove the + sign *) - then read_number false src' - else if ch = #"-" orelse ch = #"~" - then read_number true src' - else (* See if it's a valid digit. *) - read_number false src - end - - val fromString = StringCvt.scanString scan - - (* Converter to real values. This replaces the basic conversion - function for reals installed in the bootstrap process. - For more information see convInt in Int. *) - local - fun convReal (s: string) : real = - let - (* Set the rounding mode to TO_NEAREST whatever the current - rounding mode. Otherwise the result of compiling a piece of - code with a literal constant could depend on what the rounding - mode was set to. *) - val oldRounding = IEEEReal.getRoundingMode() handle Fail _ => IEEEReal.TO_NEAREST - val () = IEEEReal.setRoundingMode IEEEReal.TO_NEAREST handle Fail _ => () - val scanResult = StringCvt.scanString scan s - val () = IEEEReal.setRoundingMode oldRounding handle Fail _ => () - in - case scanResult of - NONE => raise RunCall.Conversion "Invalid real constant" - | SOME res => res - end - in - (* Install this as a conversion function for real literals. *) - val (): unit = RunCall.addOverload convReal "convReal" - end - - open Real (* Get the other definitions. *) - - fun compare (r1, r2) = - if r1 == r2 then General.EQUAL - else if r1 < r2 then General.LESS - else if r1 > r2 then General.GREATER - else raise Unordered - - fun compareReal (r1, r2) = - if r1 == r2 then EQUAL - else if r1 < r2 then LESS - else if r1 > r2 then GREATER - else UNORDERED - - (* Question: The definition says "bitwise equal, ignoring signs on zeros". - If we assume that all numbers are normalised, is that the same as "equal"?*) - fun op ?= (x, y) = - isNan x orelse isNan y orelse x == y - - (* Although these may be built in in some architectures it's - probably not worth treating them specially at the moment. *) - fun *+ (x: real, y: real, z: real): real = x*y+z - and *- (x: real, y: real, z: real): real = x*y-z - - fun rem (x, y) = - if not (isFinite y) andalso not (isNan y) then x - else x - realTrunc(x / y)*y - - (* Split a real into whole and fractional parts. The fractional part must have - the same sign as the number even if it is zero. *) - fun split r = - let - val whole = realTrunc r - val frac = r - whole - in - { whole = whole, - frac = - if not (isFinite r) - then if isNan r then r else (* Infinity *) if r < zero then ~zero else zero - else if frac == zero then if signBit r then ~zero else zero - else frac } - end - - (* Get the fractional part of a real. *) - fun realMod r = #frac(split r) - - (* nextAfter: This was previously implemented in ML but, at the very least, - needed to work with rounding to something other than TO_NEAREST. This should - be implemented as a fast call but we don't currently support fast calls for - real * real -> real. *) - val nextAfter = callRealReal 26 - -end; - -structure Math = Real.Math; - -structure LargeReal: REAL = Real; - -(* Values available unqualified at the top-level. *) -val real : int -> real = Real.fromInt -val trunc : real -> int = Real.trunc -val floor : real -> int = Real.floor -val ceil : real -> int = Real.ceil -val round : real -> int =Real.round; - -(* Install print function. *) -local - fun print_real _ _ (r: real) = - PolyML.PrettyString(Real.fmt (StringCvt.GEN(SOME 10)) r) -in - val () = PolyML.addPrettyPrinter print_real; -end; diff --git a/basis/Real32.571.sml b/basis/Real32.571.sml deleted file mode 100644 index 2f755338..00000000 --- a/basis/Real32.571.sml +++ /dev/null @@ -1 +0,0 @@ -(* This file intentionally left blank, *) diff --git a/basis/Real32.sml b/basis/Real32.sml index 15663e47..9b8307a5 100644 --- a/basis/Real32.sml +++ b/basis/Real32.sml @@ -1,293 +1,318 @@ (* Title: Real32 structure. Author: David Matthews Copyright David Matthews 2018 This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *) (* This structure implements 32-bit real values, at least on X86. On other platforms it is whatever "float" is. N.B. This uses the X87 floating point instructions on X86/32. The precision on the X87 is set to 64-bits which is correct for the Real.real operations but involves an extra stage of rounding for Real32.real. That means that the results may not be strictly accurate. *) structure Real32: REAL where type real = Real32.real = struct open Real32 (* Inherit the type and the built-in functions. *) open IEEEReal fun fromLarge IEEEReal.TO_NEAREST = fromRealRound | fromLarge IEEEReal.TO_ZERO = fromRealTrunc | fromLarge IEEEReal.TO_POSINF = fromRealCeil | fromLarge IEEEReal.TO_NEGINF = fromRealFloor (* Defined to use the current rounding mode. *) val fromInt = fromReal o Real.fromInt (* TODO *) and fromLargeInt = fromReal o Real.fromLargeInt val zero = fromInt 0 and one = fromInt 1 and four = fromInt 4 local (* The General call is now only used to get constants. *) val doFloatFloat : int*unit->real = RunCall.rtsCallFull2 "PolyRealGeneral" and doFloatInt : int*unit->int = RunCall.rtsCallFull2 "PolyRealGeneral" fun callFloat n x = doFloatFloat(n, x) and callFloatToInt n x = doFloatInt(n, x) in val radix : int = callFloatToInt 30 () val precision : int = callFloatToInt 31 () val maxFinite : real = callFloat 32 () val minNormalPos : real = callFloat 33 () val minPos : real = callFloat 34() end val posInf : real = one/zero; val negInf : real = ~one/zero; infix 4 == != ?=; val op != : real * real -> bool = not o op == local in (* isNan can be defined in terms of unordered. *) fun isNan x = unordered(x, x) (* NAN values do not match and infinities when multiplied by 0 produce NAN. *) fun isFinite x = x * zero == zero val copySign : (real * real) -> real = rtsCallFastFF_F "PolyRealFCopySign" (* Get the sign bit by copying the sign onto a finite value and then testing. This works for non-finite values and zeros. *) fun signBit r = copySign(one, r) < zero (* If we assume that all functions produce normalised results where possible, the only subnormal values will be those smaller than minNormalPos. *) fun isNormal x = isFinite x andalso abs x >= minNormalPos fun class x = if isFinite x then if x == zero then ZERO else if abs x >= minNormalPos then NORMAL else SUBNORMAL else if isNan x then NAN else (* not finite and not Nan *) INF fun sign x = if isNan x then raise General.Domain else if x == zero then 0 else if x < zero then ~1 else 1 end fun sameSign (x, y) = signBit x = signBit y (* Returns the minimum. In the case where one is a NaN it returns the other. In that case the comparison will be false. *) fun min (a: real, b: real): real = if a < b orelse isNan b then a else b (* Similarly for max. *) fun max (a: real, b: real): real = if a > b orelse isNan b then a else b fun checkFloat x = if isFinite x then x else if isNan x then raise General.Div else raise General.Overflow + (* On certain platforms e.g. mips, toLarge does not preserve + the sign on nans. We deal with the non-finite cases here. *) + (* Use the Real versions for the moment. *) fun toManExp r = + if not (isFinite r) orelse r == zero + (* Nan, infinities and +/-0 all return r in the mantissa. + We include 0 to preserve its sign. *) + then {man=r, exp=0} + else let val {man, exp} = Real.toManExp(toLarge r) in {man = fromRealRound man, exp = exp } end - and fromManExp {man, exp} = fromRealRound(Real.fromManExp{man=toLarge man, exp=exp}) + and fromManExp {man, exp} = + if not (isFinite man) orelse man == zero + (* Nan, infinities and +/-0 in the mantissa all return + their argument. *) + then man + else fromRealRound(Real.fromManExp{man=toLarge man, exp=exp}) fun compare (r1, r2) = if r1 == r2 then General.EQUAL else if r1 < r2 then General.LESS else if r1 > r2 then General.GREATER else raise Unordered fun compareReal (r1, r2) = if r1 == r2 then EQUAL else if r1 < r2 then LESS else if r1 > r2 then GREATER else UNORDERED fun op ?= (x, y) = unordered(x, y) orelse x == y (* Although these may be built in in some architectures it's probably not worth treating them specially at the moment. *) fun *+ (x: real, y: real, z: real): real = x*y+z and *- (x: real, y: real, z: real): real = x*y-z val realFloor = rtsCallFastF_F "PolyRealFFloor" and realCeil = rtsCallFastF_F "PolyRealFCeil" and realTrunc = rtsCallFastF_F "PolyRealFTrunc" and realRound = rtsCallFastF_F "PolyRealFRound" val rem = rtsCallFastFF_F "PolyRealFRem" (* Split a real into whole and fractional parts. The fractional part must have the same sign as the number even if it is zero. *) fun split r = let val whole = realTrunc r val frac = r - whole in { whole = whole, frac = if not (isFinite r) then if isNan r then r else (* Infinity *) if r < zero then ~zero else zero else if frac == zero then if signBit r then ~zero else zero else frac } end (* Get the fractional part of a real. *) fun realMod r = #frac(split r) val nextAfter = rtsCallFastFF_F "PolyRealFNextAfter" fun toLargeInt mode r = Real.toLargeInt mode (toLarge r) local (* These are defined to raise Domain rather than Overflow on Nans. *) fun checkNan x = if isNan x then raise Domain else x (* If int is fixed we use the hardware conversions otherwise we convert it to real and use the real to arbitrary conversions. *) in val floor = if Bootstrap.intIsArbitraryPrecision then LargeInt.toInt o toLargeInt IEEEReal.TO_NEGINF else FixedInt.toInt o floorFix o checkNan and ceil = if Bootstrap.intIsArbitraryPrecision then LargeInt.toInt o toLargeInt IEEEReal.TO_POSINF else FixedInt.toInt o ceilFix o checkNan and trunc = if Bootstrap.intIsArbitraryPrecision then LargeInt.toInt o toLargeInt IEEEReal.TO_ZERO else FixedInt.toInt o truncFix o checkNan and round = if Bootstrap.intIsArbitraryPrecision then LargeInt.toInt o toLargeInt IEEEReal.TO_NEAREST else FixedInt.toInt o roundFix o checkNan fun toInt IEEEReal.TO_NEGINF = floor | toInt IEEEReal.TO_POSINF = ceil | toInt IEEEReal.TO_ZERO = trunc | toInt IEEEReal.TO_NEAREST = round end (* The order of evaluation here is important. See Test175. *) fun fmt fm = let val doFmt = Real.fmt fm in fn r => doFmt (toLarge r) end val toString = Real.toString o toLarge (* Scan input source for a valid number. The format is the same as for double precision. Convert it using the current rounding mode. *) fun scan getc src = case Real.scan getc src of NONE => NONE | SOME (r, a) => SOME(fromReal r, a) val fromString = StringCvt.scanString scan - val toDecimal = Real.toDecimal o toLarge - + (* toDecimal: It's particularly important to handle the nan case + here because toLarge loses the sign bit on some architectures. *) + fun toDecimal r = + let + val sign = signBit r + val kind = class r + in + case kind of + ZERO => { class = ZERO, sign = sign, digits=[], exp = 0 } + | INF => { class = INF, sign = sign, digits=[], exp = 0 } + | NAN => { class = NAN, sign = sign, digits=[], exp = 0 } + | _ => (* NORMAL/SUBNORMAL *) Real.toDecimal(toLarge r) + end + (* Convert from decimal. This is defined to use TO_NEAREST. We need to handle NaNs specially because fromRealRound loses the sign on a NaN. *) local val posNan = abs(zero / zero) val negNan = ~posNan in fun fromDecimal { class = INF, sign=true, ...} = SOME negInf | fromDecimal { class = INF, sign=false, ...} = SOME posInf | fromDecimal { class = NAN, sign=true, ... } = SOME negNan | fromDecimal { class = NAN, sign=false, ... } = SOME posNan | fromDecimal arg = Option.map fromRealRound (Real.fromDecimal arg) end structure Math = struct type real = real val sqrt = rtsCallFastF_F "PolyRealFSqrt" and sin = rtsCallFastF_F "PolyRealFSin" and cos = rtsCallFastF_F "PolyRealFCos" and atan = rtsCallFastF_F "PolyRealFArctan" and exp = rtsCallFastF_F "PolyRealFExp" and ln = rtsCallFastF_F "PolyRealFLog" and tan = rtsCallFastF_F "PolyRealFTan" and asin = rtsCallFastF_F "PolyRealFArcSin" and acos = rtsCallFastF_F "PolyRealFArcCos" and log10 = rtsCallFastF_F "PolyRealFLog10" and sinh = rtsCallFastF_F "PolyRealFSinh" and cosh = rtsCallFastF_F "PolyRealFCosh" and tanh = rtsCallFastF_F "PolyRealFTanh" val atan2 = rtsCallFastFF_F "PolyRealFAtan2" val pow = rtsCallFastFF_F "PolyRealFPow" (* Derived values. *) val e = exp one val pi = four * atan one end (* Converter for literal constants. Copied from Real. *) local fun convReal (s: string) : real = let (* Set the rounding mode to TO_NEAREST whatever the current rounding mode. Otherwise the result of compiling a piece of code with a literal constant could depend on what the rounding mode was set to. We should always support TO_NEAREST. *) val oldRounding = IEEEReal.getRoundingMode() val () = IEEEReal.setRoundingMode IEEEReal.TO_NEAREST val scanResult = StringCvt.scanString scan s val () = IEEEReal.setRoundingMode oldRounding in case scanResult of NONE => raise RunCall.Conversion "Invalid real constant" | SOME res => res end in (* Install this as a conversion function for real literals. *) val (): unit = RunCall.addOverload convReal "convReal" end end; val () = RunCall.addOverload Real32.>= ">=" and () = RunCall.addOverload Real32.<= "<=" and () = RunCall.addOverload Real32.> ">" and () = RunCall.addOverload Real32.< "<" and () = RunCall.addOverload Real32.+ "+" and () = RunCall.addOverload Real32.- "-" and () = RunCall.addOverload Real32.* "*" and () = RunCall.addOverload Real32.~ "~" and () = RunCall.addOverload Real32.abs "abs" and () = RunCall.addOverload Real32./ "/"; (* Install print function. *) local fun print_real _ _ (r: Real32.real) = PolyML.PrettyString(Real32.fmt (StringCvt.GEN(SOME 10)) r) in val () = PolyML.addPrettyPrinter print_real; end; diff --git a/configure b/configure index cfbc90da..9279c8c8 100755 --- a/configure +++ b/configure @@ -1,25387 +1,25387 @@ #! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.69 for Poly/ML 5.8. # # Report bugs to . # # # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. # # # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## -------------------- ## ## M4sh Initialization. ## ## -------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. 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" >&6; } if ${lt_cv_nm_interface+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_nm_interface="BSD nm" echo "int some_variable = 0;" > conftest.$ac_ext (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5) (eval "$ac_compile" 2>conftest.err) cat conftest.err >&5 (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5) (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) cat conftest.err >&5 (eval echo "\"\$as_me:$LINENO: output\"" >&5) cat conftest.out >&5 if $GREP 'External.*some_variable' conftest.out > /dev/null; then lt_cv_nm_interface="MS dumpbin" fi rm -f conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5 $as_echo "$lt_cv_nm_interface" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5 $as_echo_n "checking whether ln -s works... 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Likely further. if test -x /sbin/sysctl; then lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` elif test -x /usr/sbin/sysctl; then lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` else lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs fi # And add a safety zone lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` ;; interix*) # We know the value 262144 and hardcode it with a safety zone (like BSD) lt_cv_sys_max_cmd_len=196608 ;; os2*) # The test takes a long time on OS/2. lt_cv_sys_max_cmd_len=8192 ;; osf*) # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$kargmax"; then lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'` else lt_cv_sys_max_cmd_len=32768 fi ;; *) lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` if test -n "$lt_cv_sys_max_cmd_len" && \ test undefined != "$lt_cv_sys_max_cmd_len"; then lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` else # Make teststring a little bigger before we do anything with it. # a 1K string should be a reasonable start. for i in 1 2 3 4 5 6 7 8; do teststring=$teststring$teststring done SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. while { test X`env echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test 17 != "$i" # 1/2 MB should be enough do i=`expr $i + 1` teststring=$teststring$teststring done # Only check the string length outside the loop. lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` teststring= # Add a significant safety factor because C++ compilers can tack on # massive amounts of additional arguments before passing them to the # linker. 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" >&6; } if ${lt_cv_ld_reload_flag+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_reload_flag='-r' fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5 $as_echo "$lt_cv_ld_reload_flag" >&6; } reload_flag=$lt_cv_ld_reload_flag case $reload_flag in "" | " "*) ;; *) reload_flag=" $reload_flag" ;; esac reload_cmds='$LD$reload_flag -o $output$reload_objs' case $host_os in cygwin* | mingw* | pw32* | cegcc*) if test yes != "$GCC"; then reload_cmds=false fi ;; darwin*) if test yes = "$GCC"; then reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs' else reload_cmds='$LD$reload_flag -o $output$reload_objs' fi ;; esac if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. set dummy ${ac_tool_prefix}objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OBJDUMP"; then ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OBJDUMP=$ac_cv_prog_OBJDUMP if test -n "$OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 $as_echo "$OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OBJDUMP"; then ac_ct_OBJDUMP=$OBJDUMP # Extract the first word of "objdump", so it can be a program name with args. set dummy objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OBJDUMP"; then ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OBJDUMP="objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP if test -n "$ac_ct_OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 $as_echo "$ac_ct_OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OBJDUMP" = x; then OBJDUMP="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OBJDUMP=$ac_ct_OBJDUMP fi else OBJDUMP="$ac_cv_prog_OBJDUMP" fi test -z "$OBJDUMP" && OBJDUMP=objdump { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5 $as_echo_n "checking how to recognize dependent libraries... " >&6; } if ${lt_cv_deplibs_check_method+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_file_magic_cmd='$MAGIC_CMD' lt_cv_file_magic_test_file= lt_cv_deplibs_check_method='unknown' # Need to set the preceding variable on all platforms that support # interlibrary dependencies. # 'none' -- dependencies not supported. # 'unknown' -- same as none, but documents that we really don't know. # 'pass_all' -- all dependencies passed with no checks. # 'test_compile' -- check by making test program. # 'file_magic [[regex]]' -- check by looking for files in library path # that responds to the $file_magic_cmd with a given extended regex. # If you have 'file' or equivalent on your system and you're not sure # whether 'pass_all' will *always* work, you probably want this one. case $host_os in aix[4-9]*) lt_cv_deplibs_check_method=pass_all ;; beos*) lt_cv_deplibs_check_method=pass_all ;; bsdi[45]*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)' lt_cv_file_magic_cmd='/usr/bin/file -L' lt_cv_file_magic_test_file=/shlib/libc.so ;; cygwin*) # func_win32_libid is a shell function defined in ltmain.sh lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' ;; mingw* | pw32*) # Base MSYS/MinGW do not provide the 'file' command needed by # func_win32_libid shell function, so use a weaker test based on 'objdump', # unless we find 'file', for example because we are cross-compiling. if ( file / ) >/dev/null 2>&1; then lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL' lt_cv_file_magic_cmd='func_win32_libid' else # Keep this pattern in sync with the one in func_win32_libid. lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' lt_cv_file_magic_cmd='$OBJDUMP -f' fi ;; cegcc*) # use the weaker test based on 'objdump'. See mingw*. lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?' lt_cv_file_magic_cmd='$OBJDUMP -f' ;; darwin* | rhapsody*) lt_cv_deplibs_check_method=pass_all ;; freebsd* | dragonfly*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then case $host_cpu in i*86 ) # Not sure whether the presence of OpenBSD here was a mistake. # Let's accept both of them until this is cleared up. lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*` ;; esac else lt_cv_deplibs_check_method=pass_all fi ;; haiku*) lt_cv_deplibs_check_method=pass_all ;; hpux10.20* | hpux11*) lt_cv_file_magic_cmd=/usr/bin/file case $host_cpu in ia64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64' lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so ;; hppa*64*) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]' lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl ;; *) lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library' lt_cv_file_magic_test_file=/usr/lib/libc.sl ;; esac ;; interix[3-9]*) # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$' ;; irix5* | irix6* | nonstopux*) case $LD in *-32|*"-32 ") libmagic=32-bit;; *-n32|*"-n32 ") libmagic=N32;; *-64|*"-64 ") libmagic=64-bit;; *) libmagic=never-match;; esac lt_cv_deplibs_check_method=pass_all ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) lt_cv_deplibs_check_method=pass_all ;; netbsd* | netbsdelf*-gnu) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$' fi ;; newos6*) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=/usr/lib/libnls.so ;; *nto* | *qnx*) lt_cv_deplibs_check_method=pass_all ;; openbsd* | bitrig*) if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$' fi ;; osf3* | osf4* | osf5*) lt_cv_deplibs_check_method=pass_all ;; rdos*) lt_cv_deplibs_check_method=pass_all ;; solaris*) lt_cv_deplibs_check_method=pass_all ;; sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) lt_cv_deplibs_check_method=pass_all ;; sysv4 | sysv4.3*) case $host_vendor in motorola) lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]' lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` ;; ncr) lt_cv_deplibs_check_method=pass_all ;; sequent) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' ;; sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; os2*) lt_cv_deplibs_check_method=pass_all ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5 $as_echo "$lt_cv_deplibs_check_method" >&6; } file_magic_glob= want_nocaseglob=no if test "$build" = "$host"; then case $host_os in mingw* | pw32*) if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then want_nocaseglob=yes else file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"` fi ;; esac fi file_magic_cmd=$lt_cv_file_magic_cmd deplibs_check_method=$lt_cv_deplibs_check_method test -z "$deplibs_check_method" && deplibs_check_method=unknown if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. set dummy ${ac_tool_prefix}dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DLLTOOL"; then ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DLLTOOL=$ac_cv_prog_DLLTOOL if test -n "$DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 $as_echo "$DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DLLTOOL"; then ac_ct_DLLTOOL=$DLLTOOL # Extract the first word of "dlltool", so it can be a program name with args. set dummy dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DLLTOOL"; then ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DLLTOOL="dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL if test -n "$ac_ct_DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 $as_echo "$ac_ct_DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DLLTOOL" = x; then DLLTOOL="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DLLTOOL=$ac_ct_DLLTOOL fi else DLLTOOL="$ac_cv_prog_DLLTOOL" fi test -z "$DLLTOOL" && DLLTOOL=dlltool { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5 $as_echo_n "checking how to associate runtime and link libraries... " >&6; } if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_sharedlib_from_linklib_cmd='unknown' case $host_os in cygwin* | mingw* | pw32* | cegcc*) # two different shell functions defined in ltmain.sh; # decide which one to use based on capabilities of $DLLTOOL case `$DLLTOOL --help 2>&1` in *--identify-strict*) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib ;; *) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback ;; esac ;; *) # fallback: assume linklib IS sharedlib lt_cv_sharedlib_from_linklib_cmd=$ECHO ;; esac fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5 $as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; } sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO if test -n "$ac_tool_prefix"; then for ac_prog in ar do # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. set dummy $ac_tool_prefix$ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$AR"; then ac_cv_prog_AR="$AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_AR="$ac_tool_prefix$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi AR=$ac_cv_prog_AR if test -n "$AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5 $as_echo "$AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$AR" && break done fi if test -z "$AR"; then ac_ct_AR=$AR for ac_prog in ar do # Extract the first word of "$ac_prog", so it can be a program name with args. set dummy $ac_prog; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_AR+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_AR"; then ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_AR="$ac_prog" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_AR=$ac_cv_prog_ac_ct_AR if test -n "$ac_ct_AR"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5 $as_echo "$ac_ct_AR" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi test -n "$ac_ct_AR" && break done if test "x$ac_ct_AR" = x; then AR="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac AR=$ac_ct_AR fi fi : ${AR=ar} : ${AR_FLAGS=cru} { $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5 $as_echo_n "checking for archiver @FILE support... " >&6; } if ${lt_cv_ar_at_file+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ar_at_file=no cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : echo conftest.$ac_objext > conftest.lst lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5' { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -eq "$ac_status"; then # Ensure the archiver fails upon bogus file names. rm -f conftest.$ac_objext libconftest.a { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5 (eval $lt_ar_try) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } if test 0 -ne "$ac_status"; then lt_cv_ar_at_file=@ fi fi rm -f conftest.* libconftest.a fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5 $as_echo "$lt_cv_ar_at_file" >&6; } if test no = "$lt_cv_ar_at_file"; then archiver_list_spec= else archiver_list_spec=$lt_cv_ar_at_file fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args. set dummy ${ac_tool_prefix}strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$STRIP"; then ac_cv_prog_STRIP="$STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_STRIP="${ac_tool_prefix}strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi STRIP=$ac_cv_prog_STRIP if test -n "$STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5 $as_echo "$STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_STRIP"; then ac_ct_STRIP=$STRIP # Extract the first word of "strip", so it can be a program name with args. set dummy strip; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_STRIP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_STRIP"; then ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_STRIP="strip" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP if test -n "$ac_ct_STRIP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5 $as_echo "$ac_ct_STRIP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_STRIP" = x; then STRIP=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac STRIP=$ac_ct_STRIP fi else STRIP="$ac_cv_prog_STRIP" fi test -z "$STRIP" && STRIP=: if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args. set dummy ${ac_tool_prefix}ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$RANLIB"; then ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi RANLIB=$ac_cv_prog_RANLIB if test -n "$RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5 $as_echo "$RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_RANLIB"; then ac_ct_RANLIB=$RANLIB # Extract the first word of "ranlib", so it can be a program name with args. set dummy ranlib; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_RANLIB+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_RANLIB"; then ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_RANLIB="ranlib" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB if test -n "$ac_ct_RANLIB"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5 $as_echo "$ac_ct_RANLIB" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_RANLIB" = x; then RANLIB=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac RANLIB=$ac_ct_RANLIB fi else RANLIB="$ac_cv_prog_RANLIB" fi test -z "$RANLIB" && RANLIB=: # Determine commands to create old-style static archives. old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs' old_postinstall_cmds='chmod 644 $oldlib' old_postuninstall_cmds= if test -n "$RANLIB"; then case $host_os in bitrig* | openbsd*) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib" ;; *) old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib" ;; esac old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib" fi case $host_os in darwin*) lock_old_archive_extraction=yes ;; *) lock_old_archive_extraction=no ;; esac # If no C compiler was specified, use CC. LTCC=${LTCC-"$CC"} # If no C compiler flags were specified, use CFLAGS. LTCFLAGS=${LTCFLAGS-"$CFLAGS"} # Allow CC to be a program name with arguments. compiler=$CC # Check for command to grab the raw symbol name followed by C symbol from nm. { $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5 $as_echo_n "checking command to parse $NM output from $compiler object... " >&6; } if ${lt_cv_sys_global_symbol_pipe+:} false; then : $as_echo_n "(cached) " >&6 else # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[BCDEGRST]' # Regexp to match symbols that can be accessed directly from C. sympat='\([_A-Za-z][_A-Za-z0-9]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[BCDT]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[ABCDGISTW]' ;; hpux*) if test ia64 = "$host_cpu"; then symcode='[ABCDEGRST]' fi ;; irix* | nonstopux*) symcode='[BCDEGRST]' ;; osf*) symcode='[BCDEGQRST]' ;; solaris*) symcode='[BDRT]' ;; sco3.2v5*) symcode='[DT]' ;; sysv4.2uw2*) symcode='[DT]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[ABDT]' ;; sysv4) symcode='[DFNSTU]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[ABCDGIRSTW]' ;; esac if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Gets list of data symbols to import. lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" # Adjust the below global symbol transforms to fixup imported variables. lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" lt_c_name_lib_hook="\ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" else # Disable hooks by default. lt_cv_sys_global_symbol_to_import= lt_cdecl_hook= lt_c_name_hook= lt_c_name_lib_hook= fi # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n"\ $lt_cdecl_hook\ " -e 's/^T .* \(.*\)$/extern int \1();/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ $lt_c_name_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" # Transform an extracted symbol line into symbol name with lib prefix and # symbol address. lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ $lt_c_name_lib_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function, # D for any global variable and I for any imported variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK '"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ " /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ " /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ " {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ " s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then # Now try to grab the symbols. nlist=conftest.nm if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5 (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT_DLSYM_CONST #else # define LT_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS=conftstm.$ac_objext CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag" if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5 (eval $ac_link) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; } && test -s conftest$ac_exeext; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&5 fi else echo "cannot find nm_test_var in $nlist" >&5 fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5 fi else echo "$progname: failed program was:" >&5 cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test yes = "$pipe_works"; then break else lt_cv_sys_global_symbol_pipe= fi done fi if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5 $as_echo "failed" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 $as_echo "ok" >&6; } fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then nm_file_list_spec='@' fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5 $as_echo_n "checking for sysroot... " >&6; } # Check whether --with-sysroot was given. if test "${with_sysroot+set}" = set; then : withval=$with_sysroot; else with_sysroot=no fi lt_sysroot= case $with_sysroot in #( yes) if test yes = "$GCC"; then lt_sysroot=`$CC --print-sysroot 2>/dev/null` fi ;; #( /*) lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"` ;; #( no|'') ;; #( *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5 $as_echo "$with_sysroot" >&6; } as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5 ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5 $as_echo "${lt_sysroot:-no}" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5 $as_echo_n "checking for a working dd... " >&6; } if ${ac_cv_path_lt_DD+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i : ${lt_DD:=$DD} if test -z "$lt_DD"; then ac_path_lt_DD_found=false # Loop through the user's path and test for each of PROGNAME-LIST as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_prog in dd; do for ac_exec_ext in '' $ac_executable_extensions; do ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext" as_fn_executable_p "$ac_path_lt_DD" || continue if "$ac_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=: fi $ac_path_lt_DD_found && break 3 done done done IFS=$as_save_IFS if test -z "$ac_cv_path_lt_DD"; then : fi else ac_cv_path_lt_DD=$lt_DD fi rm -f conftest.i conftest2.i conftest.out fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5 $as_echo "$ac_cv_path_lt_DD" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5 $as_echo_n "checking how to truncate binary pipes... " >&6; } if ${lt_cv_truncate_bin+:} false; then : $as_echo_n "(cached) " >&6 else printf 0123456789abcdef0123456789abcdef >conftest.i cat conftest.i conftest.i >conftest2.i lt_cv_truncate_bin= if "$ac_cv_path_lt_DD" bs=32 count=1 conftest.out 2>/dev/null; then cmp -s conftest.i conftest.out \ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1" fi rm -f conftest.i conftest2.i conftest.out test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5 $as_echo "$lt_cv_truncate_bin" >&6; } # Calculate cc_basename. Skip known compiler wrappers and cross-prefix. func_cc_basename () { for cc_temp in $*""; do case $cc_temp in compile | *[\\/]compile | ccache | *[\\/]ccache ) ;; distcc | *[\\/]distcc | purify | *[\\/]purify ) ;; \-*) ;; *) break;; esac done func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"` } # Check whether --enable-libtool-lock was given. if test "${enable_libtool_lock+set}" = set; then : enableval=$enable_libtool_lock; fi test no = "$enable_libtool_lock" || enable_libtool_lock=yes # Some flags need to be propagated to the compiler or linker for good # libtool support. case $host in ia64-*-hpux*) # Find out what ABI is being produced by ac_compile, and set mode # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.$ac_objext` in *ELF-32*) HPUX_IA64_MODE=32 ;; *ELF-64*) HPUX_IA64_MODE=64 ;; esac fi rm -rf conftest* ;; *-*-irix6*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then if test yes = "$lt_cv_prog_gnu_ld"; then case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -melf32bsmip" ;; *N32*) LD="${LD-ld} -melf32bmipn32" ;; *64-bit*) LD="${LD-ld} -melf64bmip" ;; esac else case `/usr/bin/file conftest.$ac_objext` in *32-bit*) LD="${LD-ld} -32" ;; *N32*) LD="${LD-ld} -n32" ;; *64-bit*) LD="${LD-ld} -64" ;; esac fi fi rm -rf conftest* ;; mips64*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo '#line '$LINENO' "configure"' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then emul=elf case `/usr/bin/file conftest.$ac_objext` in *32-bit*) emul="${emul}32" ;; *64-bit*) emul="${emul}64" ;; esac case `/usr/bin/file conftest.$ac_objext` in *MSB*) emul="${emul}btsmip" ;; *LSB*) emul="${emul}ltsmip" ;; esac case `/usr/bin/file conftest.$ac_objext` in *N32*) emul="${emul}n32" ;; esac LD="${LD-ld} -m $emul" fi rm -rf conftest* ;; x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \ s390*-*linux*|s390*-*tpf*|sparc*-*linux*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. Note that the listed cases only cover the # situations where additional linker options are needed (such as when # doing 32-bit compilation for a host where ld defaults to 64-bit, or # vice versa); the common cases where no linker options are needed do # not appear in the list. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *32-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_i386_fbsd" ;; x86_64-*linux*) case `/usr/bin/file conftest.o` in *x86-64*) LD="${LD-ld} -m elf32_x86_64" ;; *) LD="${LD-ld} -m elf_i386" ;; esac ;; powerpc64le-*linux*) LD="${LD-ld} -m elf32lppclinux" ;; powerpc64-*linux*) LD="${LD-ld} -m elf32ppclinux" ;; s390x-*linux*) LD="${LD-ld} -m elf_s390" ;; sparc64-*linux*) LD="${LD-ld} -m elf32_sparc" ;; esac ;; *64-bit*) case $host in x86_64-*kfreebsd*-gnu) LD="${LD-ld} -m elf_x86_64_fbsd" ;; x86_64-*linux*) LD="${LD-ld} -m elf_x86_64" ;; powerpcle-*linux*) LD="${LD-ld} -m elf64lppc" ;; powerpc-*linux*) LD="${LD-ld} -m elf64ppc" ;; s390*-*linux*|s390*-*tpf*) LD="${LD-ld} -m elf64_s390" ;; sparc*-*linux*) LD="${LD-ld} -m elf64_sparc" ;; esac ;; esac fi rm -rf conftest* ;; *-*-sco3.2v5*) # On SCO OpenServer 5, we need -belf to get full-featured binaries. SAVE_CFLAGS=$CFLAGS CFLAGS="$CFLAGS -belf" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5 $as_echo_n "checking whether the C compiler needs -belf... " >&6; } if ${lt_cv_cc_needs_belf+:} false; then : $as_echo_n "(cached) " >&6 else ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_cv_cc_needs_belf=yes else lt_cv_cc_needs_belf=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5 $as_echo "$lt_cv_cc_needs_belf" >&6; } if test yes != "$lt_cv_cc_needs_belf"; then # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf CFLAGS=$SAVE_CFLAGS fi ;; *-*solaris*) # Find out what ABI is being produced by ac_compile, and set linker # options accordingly. echo 'int i;' > conftest.$ac_ext if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5 (eval $ac_compile) 2>&5 ac_status=$? $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 test $ac_status = 0; }; then case `/usr/bin/file conftest.o` in *64-bit*) case $lt_cv_prog_gnu_ld in yes*) case $host in i?86-*-solaris*|x86_64-*-solaris*) LD="${LD-ld} -m elf_x86_64" ;; sparc*-*-solaris*) LD="${LD-ld} -m elf64_sparc" ;; esac # GNU ld 2.21 introduced _sol2 emulations. Use them if available. if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then LD=${LD-ld}_sol2 fi ;; *) if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then LD="${LD-ld} -64" fi ;; esac ;; esac fi rm -rf conftest* ;; esac need_locks=$enable_libtool_lock if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args. set dummy ${ac_tool_prefix}mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$MANIFEST_TOOL"; then ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL if test -n "$MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5 $as_echo "$MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_MANIFEST_TOOL"; then ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL # Extract the first word of "mt", so it can be a program name with args. set dummy mt; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_MANIFEST_TOOL"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_MANIFEST_TOOL="mt" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL if test -n "$ac_ct_MANIFEST_TOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5 $as_echo "$ac_ct_MANIFEST_TOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_MANIFEST_TOOL" = x; then MANIFEST_TOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL fi else MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL" fi test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5 $as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; } if ${lt_cv_path_mainfest_tool+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_path_mainfest_tool=no echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5 $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out cat conftest.err >&5 if $GREP 'Manifest Tool' conftest.out > /dev/null; then lt_cv_path_mainfest_tool=yes fi rm -f conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5 $as_echo "$lt_cv_path_mainfest_tool" >&6; } if test yes != "$lt_cv_path_mainfest_tool"; then MANIFEST_TOOL=: fi case $host_os in rhapsody* | darwin*) if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args. set dummy ${ac_tool_prefix}dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DSYMUTIL"; then ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DSYMUTIL=$ac_cv_prog_DSYMUTIL if test -n "$DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5 $as_echo "$DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DSYMUTIL"; then ac_ct_DSYMUTIL=$DSYMUTIL # Extract the first word of "dsymutil", so it can be a program name with args. set dummy dsymutil; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DSYMUTIL"; then ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DSYMUTIL="dsymutil" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL if test -n "$ac_ct_DSYMUTIL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5 $as_echo "$ac_ct_DSYMUTIL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DSYMUTIL" = x; then DSYMUTIL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DSYMUTIL=$ac_ct_DSYMUTIL fi else DSYMUTIL="$ac_cv_prog_DSYMUTIL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args. set dummy ${ac_tool_prefix}nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$NMEDIT"; then ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi NMEDIT=$ac_cv_prog_NMEDIT if test -n "$NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5 $as_echo "$NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_NMEDIT"; then ac_ct_NMEDIT=$NMEDIT # Extract the first word of "nmedit", so it can be a program name with args. set dummy nmedit; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_NMEDIT"; then ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_NMEDIT="nmedit" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT if test -n "$ac_ct_NMEDIT"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5 $as_echo "$ac_ct_NMEDIT" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_NMEDIT" = x; then NMEDIT=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac NMEDIT=$ac_ct_NMEDIT fi else NMEDIT="$ac_cv_prog_NMEDIT" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args. set dummy ${ac_tool_prefix}lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$LIPO"; then ac_cv_prog_LIPO="$LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_LIPO="${ac_tool_prefix}lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi LIPO=$ac_cv_prog_LIPO if test -n "$LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5 $as_echo "$LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_LIPO"; then ac_ct_LIPO=$LIPO # Extract the first word of "lipo", so it can be a program name with args. set dummy lipo; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_LIPO+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_LIPO"; then ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_LIPO="lipo" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO if test -n "$ac_ct_LIPO"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5 $as_echo "$ac_ct_LIPO" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_LIPO" = x; then LIPO=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac LIPO=$ac_ct_LIPO fi else LIPO="$ac_cv_prog_LIPO" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args. set dummy ${ac_tool_prefix}otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL"; then ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL="${ac_tool_prefix}otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL=$ac_cv_prog_OTOOL if test -n "$OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5 $as_echo "$OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL"; then ac_ct_OTOOL=$OTOOL # Extract the first word of "otool", so it can be a program name with args. set dummy otool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL"; then ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL="otool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL if test -n "$ac_ct_OTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5 $as_echo "$ac_ct_OTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL" = x; then OTOOL=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL=$ac_ct_OTOOL fi else OTOOL="$ac_cv_prog_OTOOL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args. set dummy ${ac_tool_prefix}otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OTOOL64"; then ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OTOOL64=$ac_cv_prog_OTOOL64 if test -n "$OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5 $as_echo "$OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OTOOL64"; then ac_ct_OTOOL64=$OTOOL64 # Extract the first word of "otool64", so it can be a program name with args. set dummy otool64; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OTOOL64"; then ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OTOOL64="otool64" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64 if test -n "$ac_ct_OTOOL64"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5 $as_echo "$ac_ct_OTOOL64" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OTOOL64" = x; then OTOOL64=":" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OTOOL64=$ac_ct_OTOOL64 fi else OTOOL64="$ac_cv_prog_OTOOL64" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5 $as_echo_n "checking for -single_module linker flag... " >&6; } if ${lt_cv_apple_cc_single_mod+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_apple_cc_single_mod=no if test -z "$LT_MULTI_MODULE"; then # By default we will add the -single_module flag. You can override # by either setting the environment variable LT_MULTI_MODULE # non-empty at configure time, or by adding -multi_module to the # link flags. rm -rf libconftest.dylib* echo "int foo(void){return 1;}" > conftest.c echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ -dynamiclib -Wl,-single_module conftest.c" >&5 $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \ -dynamiclib -Wl,-single_module conftest.c 2>conftest.err _lt_result=$? # If there is a non-empty error log, and "single_module" # appears in it, assume the flag caused a linker warning if test -s conftest.err && $GREP single_module conftest.err; then cat conftest.err >&5 # Otherwise, if the output was created with a 0 exit code from # the compiler, it worked. elif test -f libconftest.dylib && test 0 = "$_lt_result"; then lt_cv_apple_cc_single_mod=yes else cat conftest.err >&5 fi rm -rf libconftest.dylib* rm -f conftest.* fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5 $as_echo "$lt_cv_apple_cc_single_mod" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5 $as_echo_n "checking for -exported_symbols_list linker flag... " >&6; } if ${lt_cv_ld_exported_symbols_list+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_exported_symbols_list=no save_LDFLAGS=$LDFLAGS echo "_main" > conftest.sym LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : lt_cv_ld_exported_symbols_list=yes else lt_cv_ld_exported_symbols_list=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LDFLAGS=$save_LDFLAGS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5 $as_echo "$lt_cv_ld_exported_symbols_list" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5 $as_echo_n "checking for -force_load linker flag... " >&6; } if ${lt_cv_ld_force_load+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_ld_force_load=no cat > conftest.c << _LT_EOF int forced_loaded() { return 2;} _LT_EOF echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5 $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5 echo "$AR cru libconftest.a conftest.o" >&5 $AR cru libconftest.a conftest.o 2>&5 echo "$RANLIB libconftest.a" >&5 $RANLIB libconftest.a 2>&5 cat > conftest.c << _LT_EOF int main() { return 0;} _LT_EOF echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5 $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err _lt_result=$? if test -s conftest.err && $GREP force_load conftest.err; then cat conftest.err >&5 elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then lt_cv_ld_force_load=yes else cat conftest.err >&5 fi rm -f conftest.err libconftest.a conftest conftest.c rm -rf conftest.dSYM fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5 $as_echo "$lt_cv_ld_force_load" >&6; } case $host_os in rhapsody* | darwin1.[012]) _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;; darwin1.*) _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; darwin*) # darwin 5.x on # if running on 10.5 or later, the deployment target defaults # to the OS version, if on x86, and 10.4, the deployment # target defaults to 10.4. Don't you love it? case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in 10.0,*86*-darwin8*|10.0,*-darwin[91]*) _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; 10.[012][,.]*) _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;; 10.*) _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;; esac ;; esac if test yes = "$lt_cv_apple_cc_single_mod"; then _lt_dar_single_mod='$single_module' fi if test yes = "$lt_cv_ld_exported_symbols_list"; then _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym' else _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib' fi if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then _lt_dsymutil='~$DSYMUTIL $lib || :' else _lt_dsymutil= fi ;; esac # func_munge_path_list VARIABLE PATH # ----------------------------------- # VARIABLE is name of variable containing _space_ separated list of # directories to be munged by the contents of PATH, which is string # having a format: # "DIR[:DIR]:" # string "DIR[ DIR]" will be prepended to VARIABLE # ":DIR[:DIR]" # string "DIR[ DIR]" will be appended to VARIABLE # "DIRP[:DIRP]::[DIRA:]DIRA" # string "DIRP[ DIRP]" will be prepended to VARIABLE and string # "DIRA[ DIRA]" will be appended to VARIABLE # "DIR[:DIR]" # VARIABLE will be replaced by "DIR[ DIR]" func_munge_path_list () { case x$2 in x) ;; *:) eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\" ;; x:*) eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\" ;; *::*) eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\" ;; *) eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\" ;; esac } ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 $as_echo_n "checking how to run the C preprocessor... " >&6; } # On Suns, sometimes $CPP names a directory. if test -n "$CPP" && test -d "$CPP"; then CPP= fi if test -z "$CPP"; then if ${ac_cv_prog_CPP+:} false; then : $as_echo_n "(cached) " >&6 else # Double quotes because CPP needs to be expanded for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" do ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # Prefer to if __STDC__ is defined, since # exists even on freestanding compilers. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef __STDC__ # include #else # include #endif Syntax error _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : else # Broken: fails on valid input. continue fi rm -f conftest.err conftest.i conftest.$ac_ext # OK, works on sane cases. Now check whether nonexistent headers # can be detected and how. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : # Broken: success on invalid input. continue else # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.i conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.i conftest.err conftest.$ac_ext if $ac_preproc_ok; then : break fi done ac_cv_prog_CPP=$CPP fi CPP=$ac_cv_prog_CPP else ac_cv_prog_CPP=$CPP fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 $as_echo "$CPP" >&6; } ac_preproc_ok=false for ac_c_preproc_warn_flag in '' yes do # Use a header file that comes with gcc, so configuring glibc # with a fresh cross-compiler works. # Prefer to if __STDC__ is defined, since # exists even on freestanding compilers. # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. "Syntax error" is here to catch this case. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef __STDC__ # include #else # include #endif Syntax error _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : else # Broken: fails on valid input. continue fi rm -f conftest.err conftest.i conftest.$ac_ext # OK, works on sane cases. Now check whether nonexistent headers # can be detected and how. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if ac_fn_c_try_cpp "$LINENO"; then : # Broken: success on invalid input. continue else # Passes both tests. ac_preproc_ok=: break fi rm -f conftest.err conftest.i conftest.$ac_ext done # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. rm -f conftest.i conftest.err conftest.$ac_ext if $ac_preproc_ok; then : else { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "C preprocessor \"$CPP\" fails sanity check See \`config.log' for more details" "$LINENO" 5; } fi ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 $as_echo_n "checking for ANSI C header files... " >&6; } if ${ac_cv_header_stdc+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #include #include int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_header_stdc=yes else ac_cv_header_stdc=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test $ac_cv_header_stdc = yes; then # SunOS 4.x string.h does not declare mem*, contrary to ANSI. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "memchr" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include _ACEOF if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | $EGREP "free" >/dev/null 2>&1; then : else ac_cv_header_stdc=no fi rm -f conftest* fi if test $ac_cv_header_stdc = yes; then # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. if test "$cross_compiling" = yes; then : : else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #if ((' ' & 0x0FF) == 0x020) # define ISLOWER(c) ('a' <= (c) && (c) <= 'z') # define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) #else # define ISLOWER(c) \ (('a' <= (c) && (c) <= 'i') \ || ('j' <= (c) && (c) <= 'r') \ || ('s' <= (c) && (c) <= 'z')) # define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) #endif #define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) int main () { int i; for (i = 0; i < 256; i++) if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) return 2; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : else ac_cv_header_stdc=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 $as_echo "$ac_cv_header_stdc" >&6; } if test $ac_cv_header_stdc = yes; then $as_echo "#define STDC_HEADERS 1" >>confdefs.h fi # On IRIX 5.3, sys/types and inttypes.h are conflicting. for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ inttypes.h stdint.h unistd.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default " if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in dlfcn.h do : ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default " if test "x$ac_cv_header_dlfcn_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_DLFCN_H 1 _ACEOF fi done # Set options enable_win32_dll=yes case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args. set dummy ${ac_tool_prefix}as; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_AS+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$AS"; then ac_cv_prog_AS="$AS" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_AS="${ac_tool_prefix}as" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi AS=$ac_cv_prog_AS if test -n "$AS"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5 $as_echo "$AS" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_AS"; then ac_ct_AS=$AS # Extract the first word of "as", so it can be a program name with args. set dummy as; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_AS+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_AS"; then ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_AS="as" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_AS=$ac_cv_prog_ac_ct_AS if test -n "$ac_ct_AS"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5 $as_echo "$ac_ct_AS" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_AS" = x; then AS="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac AS=$ac_ct_AS fi else AS="$ac_cv_prog_AS" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args. set dummy ${ac_tool_prefix}dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$DLLTOOL"; then ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi DLLTOOL=$ac_cv_prog_DLLTOOL if test -n "$DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5 $as_echo "$DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_DLLTOOL"; then ac_ct_DLLTOOL=$DLLTOOL # Extract the first word of "dlltool", so it can be a program name with args. set dummy dlltool; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_DLLTOOL"; then ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_DLLTOOL="dlltool" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL if test -n "$ac_ct_DLLTOOL"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5 $as_echo "$ac_ct_DLLTOOL" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_DLLTOOL" = x; then DLLTOOL="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac DLLTOOL=$ac_ct_DLLTOOL fi else DLLTOOL="$ac_cv_prog_DLLTOOL" fi if test -n "$ac_tool_prefix"; then # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args. set dummy ${ac_tool_prefix}objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$OBJDUMP"; then ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi OBJDUMP=$ac_cv_prog_OBJDUMP if test -n "$OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5 $as_echo "$OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi fi if test -z "$ac_cv_prog_OBJDUMP"; then ac_ct_OBJDUMP=$OBJDUMP # Extract the first word of "objdump", so it can be a program name with args. set dummy objdump; ac_word=$2 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 $as_echo_n "checking for $ac_word... " >&6; } if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then : $as_echo_n "(cached) " >&6 else if test -n "$ac_ct_OBJDUMP"; then ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test. else as_save_IFS=$IFS; IFS=$PATH_SEPARATOR for as_dir in $PATH do IFS=$as_save_IFS test -z "$as_dir" && as_dir=. for ac_exec_ext in '' $ac_executable_extensions; do if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then ac_cv_prog_ac_ct_OBJDUMP="objdump" $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 break 2 fi done done IFS=$as_save_IFS fi fi ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP if test -n "$ac_ct_OBJDUMP"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5 $as_echo "$ac_ct_OBJDUMP" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test "x$ac_ct_OBJDUMP" = x; then OBJDUMP="false" else case $cross_compiling:$ac_tool_warned in yes:) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 $as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} ac_tool_warned=yes ;; esac OBJDUMP=$ac_ct_OBJDUMP fi else OBJDUMP="$ac_cv_prog_OBJDUMP" fi ;; esac test -z "$AS" && AS=as test -z "$DLLTOOL" && DLLTOOL=dlltool test -z "$OBJDUMP" && OBJDUMP=objdump enable_dlopen=no # Check whether --enable-shared was given. if test "${enable_shared+set}" = set; then : enableval=$enable_shared; p=${PACKAGE-default} case $enableval in yes) enable_shared=yes ;; no) enable_shared=no ;; *) enable_shared=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_shared=yes fi done IFS=$lt_save_ifs ;; esac else enable_shared=yes fi # Check whether --enable-static was given. if test "${enable_static+set}" = set; then : enableval=$enable_static; p=${PACKAGE-default} case $enableval in yes) enable_static=yes ;; no) enable_static=no ;; *) enable_static=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_static=yes fi done IFS=$lt_save_ifs ;; esac else enable_static=yes fi # Check whether --with-pic was given. if test "${with_pic+set}" = set; then : withval=$with_pic; lt_p=${PACKAGE-default} case $withval in yes|no) pic_mode=$withval ;; *) pic_mode=default # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for lt_pkg in $withval; do IFS=$lt_save_ifs if test "X$lt_pkg" = "X$lt_p"; then pic_mode=yes fi done IFS=$lt_save_ifs ;; esac else pic_mode=default fi # Check whether --enable-fast-install was given. if test "${enable_fast_install+set}" = set; then : enableval=$enable_fast_install; p=${PACKAGE-default} case $enableval in yes) enable_fast_install=yes ;; no) enable_fast_install=no ;; *) enable_fast_install=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_fast_install=yes fi done IFS=$lt_save_ifs ;; esac else enable_fast_install=yes fi shared_archive_member_spec= case $host,$enable_shared in power*-*-aix[5-9]*,yes) { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5 $as_echo_n "checking which variant of shared library versioning to provide... " >&6; } # Check whether --with-aix-soname was given. if test "${with_aix_soname+set}" = set; then : withval=$with_aix_soname; case $withval in aix|svr4|both) ;; *) as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5 ;; esac lt_cv_with_aix_soname=$with_aix_soname else if ${lt_cv_with_aix_soname+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_with_aix_soname=aix fi with_aix_soname=$lt_cv_with_aix_soname fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5 $as_echo "$with_aix_soname" >&6; } if test aix != "$with_aix_soname"; then # For the AIX way of multilib, we name the shared archive member # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, # the AIX toolchain works better with OBJECT_MODE set (default 32). if test 64 = "${OBJECT_MODE-32}"; then shared_archive_member_spec=shr_64 else shared_archive_member_spec=shr fi fi ;; *) with_aix_soname=aix ;; esac # This can be used to rebuild libtool when needed LIBTOOL_DEPS=$ltmain # Always use our own libtool. LIBTOOL='$(SHELL) $(top_builddir)/libtool' test -z "$LN_S" && LN_S="ln -s" if test -n "${ZSH_VERSION+set}"; then setopt NO_GLOB_SUBST fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5 $as_echo_n "checking for objdir... " >&6; } if ${lt_cv_objdir+:} false; then : $as_echo_n "(cached) " >&6 else rm -f .libs 2>/dev/null mkdir .libs 2>/dev/null if test -d .libs; then lt_cv_objdir=.libs else # MS-DOS does not allow filenames that begin with a dot. lt_cv_objdir=_libs fi rmdir .libs 2>/dev/null fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5 $as_echo "$lt_cv_objdir" >&6; } objdir=$lt_cv_objdir cat >>confdefs.h <<_ACEOF #define LT_OBJDIR "$lt_cv_objdir/" _ACEOF case $host_os in aix3*) # AIX sometimes has problems with the GCC collect2 program. For some # reason, if we set the COLLECT_NAMES environment variable, the problems # vanish in a puff of smoke. if test set != "${COLLECT_NAMES+set}"; then COLLECT_NAMES= export COLLECT_NAMES fi ;; esac # Global variables: ofile=libtool can_build_shared=yes # All known linkers require a '.a' archive for static linking (except MSVC, # which needs '.lib'). libext=a with_gnu_ld=$lt_cv_prog_gnu_ld old_CC=$CC old_CFLAGS=$CFLAGS # Set sane defaults for various variables test -z "$CC" && CC=cc test -z "$LTCC" && LTCC=$CC test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS test -z "$LD" && LD=ld test -z "$ac_objext" && ac_objext=o func_cc_basename $compiler cc_basename=$func_cc_basename_result # Only perform the check for file, if the check method requires it test -z "$MAGIC_CMD" && MAGIC_CMD=file case $deplibs_check_method in file_magic*) if test "$file_magic_cmd" = '$MAGIC_CMD'; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5 $as_echo_n "checking for ${ac_tool_prefix}file... " >&6; } if ${lt_cv_path_MAGIC_CMD+:} false; then : $as_echo_n "(cached) " >&6 else case $MAGIC_CMD in [\\/*] | ?:[\\/]*) lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. ;; *) lt_save_MAGIC_CMD=$MAGIC_CMD lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" for ac_dir in $ac_dummy; do IFS=$lt_save_ifs test -z "$ac_dir" && ac_dir=. if test -f "$ac_dir/${ac_tool_prefix}file"; then lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file" if test -n "$file_magic_test_file"; then case $deplibs_check_method in "file_magic "*) file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` MAGIC_CMD=$lt_cv_path_MAGIC_CMD if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | $EGREP "$file_magic_regex" > /dev/null; then : else cat <<_LT_EOF 1>&2 *** Warning: the command libtool uses to detect shared libraries, *** $file_magic_cmd, produces output that libtool cannot recognize. *** The result is that libtool may fail to recognize shared libraries *** as such. This will affect the creation of libtool libraries that *** depend on shared libraries, but programs linked with such libtool *** libraries will work regardless of this problem. Nevertheless, you *** may want to report the problem to your system manager and/or to *** bug-libtool@gnu.org _LT_EOF fi ;; esac fi break fi done IFS=$lt_save_ifs MAGIC_CMD=$lt_save_MAGIC_CMD ;; esac fi MAGIC_CMD=$lt_cv_path_MAGIC_CMD if test -n "$MAGIC_CMD"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 $as_echo "$MAGIC_CMD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi if test -z "$lt_cv_path_MAGIC_CMD"; then if test -n "$ac_tool_prefix"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5 $as_echo_n "checking for file... " >&6; } if ${lt_cv_path_MAGIC_CMD+:} false; then : $as_echo_n "(cached) " >&6 else case $MAGIC_CMD in [\\/*] | ?:[\\/]*) lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path. ;; *) lt_save_MAGIC_CMD=$MAGIC_CMD lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR ac_dummy="/usr/bin$PATH_SEPARATOR$PATH" for ac_dir in $ac_dummy; do IFS=$lt_save_ifs test -z "$ac_dir" && ac_dir=. if test -f "$ac_dir/file"; then lt_cv_path_MAGIC_CMD=$ac_dir/"file" if test -n "$file_magic_test_file"; then case $deplibs_check_method in "file_magic "*) file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"` MAGIC_CMD=$lt_cv_path_MAGIC_CMD if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null | $EGREP "$file_magic_regex" > /dev/null; then : else cat <<_LT_EOF 1>&2 *** Warning: the command libtool uses to detect shared libraries, *** $file_magic_cmd, produces output that libtool cannot recognize. *** The result is that libtool may fail to recognize shared libraries *** as such. This will affect the creation of libtool libraries that *** depend on shared libraries, but programs linked with such libtool *** libraries will work regardless of this problem. Nevertheless, you *** may want to report the problem to your system manager and/or to *** bug-libtool@gnu.org _LT_EOF fi ;; esac fi break fi done IFS=$lt_save_ifs MAGIC_CMD=$lt_save_MAGIC_CMD ;; esac fi MAGIC_CMD=$lt_cv_path_MAGIC_CMD if test -n "$MAGIC_CMD"; then { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5 $as_echo "$MAGIC_CMD" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi else MAGIC_CMD=: fi fi fi ;; esac # Use C for the default configuration in the libtool script lt_save_CC=$CC ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' ac_compiler_gnu=$ac_cv_c_compiler_gnu # Source file extension for C test sources. ac_ext=c # Object file extension for compiled C test sources. objext=o objext=$objext # Code to be used in simple compile tests lt_simple_compile_test_code="int some_variable = 0;" # Code to be used in simple link tests lt_simple_link_test_code='int main(){return(0);}' # If no C compiler was specified, use CC. LTCC=${LTCC-"$CC"} # If no C compiler flags were specified, use CFLAGS. LTCFLAGS=${LTCFLAGS-"$CFLAGS"} # Allow CC to be a program name with arguments. compiler=$CC # Save the default compiler, since it gets overwritten when the other # tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP. compiler_DEFAULT=$CC # save warnings/boilerplate of simple test code ac_outfile=conftest.$ac_objext echo "$lt_simple_compile_test_code" >conftest.$ac_ext eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err _lt_compiler_boilerplate=`cat conftest.err` $RM conftest* ac_outfile=conftest.$ac_objext echo "$lt_simple_link_test_code" >conftest.$ac_ext eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err _lt_linker_boilerplate=`cat conftest.err` $RM -r conftest* ## CAVEAT EMPTOR: ## There is no encapsulation within the following macros, do not change ## the running order or otherwise move them around unless you know exactly ## what you are doing... if test -n "$compiler"; then lt_prog_compiler_no_builtin_flag= if test yes = "$GCC"; then case $cc_basename in nvcc*) lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;; *) lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;; esac { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5 $as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; } if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then : $as_echo_n "(cached) " >&6 else lt_cv_prog_compiler_rtti_exceptions=no ac_outfile=conftest.$ac_objext echo "$lt_simple_compile_test_code" > conftest.$ac_ext lt_compiler_flag="-fno-rtti -fno-exceptions" ## exclude from sc_useless_quotes_in_assignment # Insert the option either (1) after the last *FLAGS variable, or # (2) before a word containing "conftest.", or (3) at the end. # Note that $ac_compile itself does not contain backslashes and begins # with a dollar sign (not a hyphen), so the echo should work correctly. # The option is referenced via a variable to avoid confusing sed. lt_compile=`echo "$ac_compile" | $SED \ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5) (eval "$lt_compile" 2>conftest.err) ac_status=$? cat conftest.err >&5 echo "$as_me:$LINENO: \$? = $ac_status" >&5 if (exit $ac_status) && test -s "$ac_outfile"; then # The compiler can only warn and ignore the option if not recognized # So say no if there are warnings other than the usual output. $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2 if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then lt_cv_prog_compiler_rtti_exceptions=yes fi fi $RM conftest* fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5 $as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; } if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions" else : fi fi lt_prog_compiler_wl= lt_prog_compiler_pic= lt_prog_compiler_static= if test yes = "$GCC"; then lt_prog_compiler_wl='-Wl,' lt_prog_compiler_static='-static' case $host_os in aix*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor lt_prog_compiler_static='-Bstatic' fi lt_prog_compiler_pic='-fPIC' ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support lt_prog_compiler_pic='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the '-m68020' flag to GCC prevents building anything better, # like '-m68040'. lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries lt_prog_compiler_pic='-DDLL_EXPORT' case $host_os in os2*) lt_prog_compiler_static='$wl-static' ;; esac ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files lt_prog_compiler_pic='-fno-common' ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. lt_prog_compiler_static= ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. 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then # We only use this code for GNU lds that support --whole-archive. whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive' else # Exported symbols can be pulled into shared objects from archives whole_archive_flag_spec='$convenience' fi archive_cmds_need_lc=yes archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' # -brtl affects multiple linker settings, -berok does not and is overridden later compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`' if test svr4 != "$with_aix_soname"; then # This is similar to how AIX traditionally builds its shared libraries. archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' fi if test aix != "$with_aix_soname"; then archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp' else # used by -dlpreopen to get the symbols archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir' fi archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d' fi fi ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' archive_expsym_cmds='' ;; m68k) archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)' hardcode_libdir_flag_spec='-L$libdir' hardcode_minus_L=yes ;; esac ;; bsdi[45]*) export_dynamic_flag_spec=-rdynamic ;; cygwin* | mingw* | pw32* | cegcc*) # When not using gcc, we currently assume that we are using # Microsoft Visual C++. # hardcode_libdir_flag_spec is actually meaningless, as there is # no search path for DLLs. case $cc_basename in cl*) # Native MSVC hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported always_export_symbols=yes file_list_spec='@' # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames=' archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then cp "$export_symbols" "$output_objdir/$soname.def"; echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp"; else $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp; fi~ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~ linknames=' # The linker will not automatically build a static lib if we build a DLL. # _LT_TAGVAR(old_archive_from_new_cmds, )='true' enable_shared_with_static_runtimes=yes exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*' export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols' # Don't use ranlib old_postinstall_cmds='chmod 644 $oldlib' postlink_cmds='lt_outputfile="@OUTPUT@"~ lt_tool_outputfile="@TOOL_OUTPUT@"~ case $lt_outputfile in *.exe|*.EXE) ;; *) lt_outputfile=$lt_outputfile.exe lt_tool_outputfile=$lt_tool_outputfile.exe ;; esac~ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1; $RM "$lt_outputfile.manifest"; fi' ;; *) # Assume MSVC wrapper hardcode_libdir_flag_spec=' ' allow_undefined_flag=unsupported # Tell ltmain to make .lib files, not .a files. libext=lib # Tell ltmain to make .dll files, not .so files. shrext_cmds=.dll # FIXME: Setting linknames here is a bad hack. archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames=' # The linker will automatically build a .lib file if we build a DLL. old_archive_from_new_cmds='true' # FIXME: Should let the user specify the lib program. old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs' enable_shared_with_static_runtimes=yes ;; esac ;; darwin* | rhapsody*) archive_cmds_need_lc=no hardcode_direct=no hardcode_automatic=yes hardcode_shlibpath_var=unsupported if test yes = "$lt_cv_ld_force_load"; then whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`' else whole_archive_flag_spec='' fi link_all_deplibs=yes allow_undefined_flag=$_lt_dar_allow_undefined case $cc_basename in ifort*|nagfor*) _lt_dar_can_shared=yes ;; *) _lt_dar_can_shared=$GCC ;; esac if test yes = "$_lt_dar_can_shared"; then output_verbose_link_cmd=func_echo_all archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil" module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil" archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil" module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil" else ld_shlibs=no fi ;; dgux*) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_libdir_flag_spec='-L$libdir' hardcode_shlibpath_var=no ;; # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor # support. 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linux*) case $cc_basename in tcc*) # Fabrice Bellard et al's Tiny C Compiler ld_shlibs=yes archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' ;; esac ;; netbsd* | netbsdelf*-gnu) if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out else archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF fi hardcode_libdir_flag_spec='-R$libdir' hardcode_direct=yes hardcode_shlibpath_var=no ;; newsos6) archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags' hardcode_direct=yes hardcode_libdir_flag_spec='$wl-rpath $wl$libdir' hardcode_libdir_separator=: hardcode_shlibpath_var=no ;; *nto* | *qnx*) ;; openbsd* | bitrig*) if test -f /usr/libexec/ld.so; then hardcode_direct=yes hardcode_shlibpath_var=no hardcode_direct_absolute=yes if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' hardcode_libdir_flag_spec='$wl-rpath,$libdir' export_dynamic_flag_spec='$wl-E' else archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' hardcode_libdir_flag_spec='$wl-rpath,$libdir' fi else ld_shlibs=no fi ;; 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esac ;; haiku*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LIBRARY_PATH shlibpath_overrides_runpath=no sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' hardcode_into_libs=yes ;; hpux9* | hpux10* | hpux11*) # Give a soname corresponding to the major version so that dld.sl refuses to # link against other versions. version_type=sunos need_lib_prefix=no need_version=no case $host_cpu in ia64*) shrext_cmds='.so' hardcode_into_libs=yes dynamic_linker="$host_os dld.so" shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' if test 32 = "$HPUX_IA64_MODE"; 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esac # HP-UX runs *really* slowly unless shared libraries are mode 555, ... postinstall_cmds='chmod 555 $lib' # or fails outright, so override atomically: install_override_mode=555 ;; interix[3-9]*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; irix5* | irix6* | nonstopux*) case $host_os in nonstopux*) version_type=nonstopux ;; *) if test yes = "$lt_cv_prog_gnu_ld"; then version_type=linux # correct to gnu/linux during the next big refactor else version_type=irix fi ;; esac need_lib_prefix=no need_version=no soname_spec='$libname$release$shared_ext$major' library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' case $host_os in irix5* | nonstopux*) libsuff= shlibsuff= ;; *) case $LD in # libtool.m4 will add one of these switches to LD *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= libmagic=32-bit;; *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 libmagic=N32;; *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 libmagic=64-bit;; *) libsuff= shlibsuff= libmagic=never-match;; esac ;; esac shlibpath_var=LD_LIBRARY${shlibsuff}_PATH shlibpath_overrides_runpath=no sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; linux*android*) version_type=none # Android doesn't support versioned libraries. need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext' soname_spec='$libname$release$shared_ext' finish_cmds= shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes dynamic_linker='Android linker' # Don't embed -rpath directories since the linker doesn't support them. hardcode_libdir_flag_spec='-L$libdir' ;; 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newsos6) version_type=linux # correct to gnu/linux during the next big refactor library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes ;; *nto* | *qnx*) version_type=qnx need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes dynamic_linker='ldqnx.so' ;; openbsd* | bitrig*) version_type=sunos sys_lib_dlsearch_path_spec=/usr/lib need_lib_prefix=no if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then need_version=no else need_version=yes fi library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes ;; 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If this is disabled use a Windows console. @<:@default=yes@:>@])], [case "${enableval}" in yes) enablegui=true ;; no) enablegui=false ;; *) AC_MSG_ERROR([bad value ${enableval} for --enable-windows-gui]) ;; esac], [enablegui=true]) AM_CONDITIONAL([WINDOWSGUI], [test x$enablegui = xtrue]) # libpolyml can be a DLL but libpolymain can't. # Enable shared libraries by default. It complicates installation a bit if the # the library is installed to a non-standard location but simplifies polyc. LT_INIT([win32-dll]) AM_MAINTAINER_MODE # Check we're in the right directory AC_CONFIG_SRCDIR([polyexports.h]) AC_CONFIG_HEADER([config.h]) # Checks for programs. AC_PROG_CXX # The following check was supposed to check that there was actually a # C++ compiler but doesn't work properly if CXX is set by the user. #AC_CHECK_PROG(check_cpp, $CXX, "yes", "no") #if test "$check_cpp" != "yes"; then # AC_MSG_ERROR([No C++ compiler found. 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LT_SYS_SYMBOL_USCORE if test x$sys_symbol_underscore = xyes; then AC_DEFINE(SYMBOLS_REQUIRE_UNDERSCORE, [1], [Defined if external symbols are prefixed by underscores]) fi # Solaris needs -lsocket, -lnsl and -lrt AC_SEARCH_LIBS([gethostbyname], [nsl]) AC_SEARCH_LIBS([getsockopt], [socket]) AC_SEARCH_LIBS([sem_wait], [rt]) # Check for X and Motif headers and libraries AC_PATH_X if test "x${with_x}" = "xyes"; then AC_DEFINE([WITH_XWINDOWS], [1], [Define if the X-Windows interface should be built]) if test "$x_includes" != "" ; then if test "$x_includes" != "NONE" ; then CFLAGS="$CFLAGS -I$x_includes" CXXFLAGS="$CXXFLAGS -I$x_includes" CPPFLAGS="$CPPFLAGS -I$x_includes" fi fi if test "$x_libraries" != "" ; then if test "$x_libraries" != "NONE" ; then LIBS="-L$x_libraries $LIBS" fi fi AC_CHECK_LIB(X11, XCreateGC) AC_CHECK_LIB(Xt, XtMalloc) AC_CHECK_LIB(Xext, XextAddDisplay) if test "$xm_includes" != "" ; then if test "$xm_includes" != "NONE" ; then CFLAGS="$CFLAGS -I$xm_includes" CXXFLAGS="$CXXFLAGS -I$xm_includes" CPPFLAGS="$CPPFLAGS -I$xm_includes" fi fi if test "$xm_libraries" != "" ; then if test "$xm_libraries" != "NONE" ; then LIBS="-L$xm_libraries $LIBS" fi fi AC_CHECK_LIB(Xm, XmGetDestination) fi # TODO: May need AC_PATH_XTRA for Solaris # Check for headers AC_FUNC_ALLOCA AC_HEADER_DIRENT AC_HEADER_STDC AC_HEADER_SYS_WAIT AC_CHECK_HEADERS([stdio.h time.h fcntl.h float.h limits.h locale.h malloc.h netdb.h netinet/in.h stddef.h]) AC_CHECK_HEADERS([stdlib.h string.h sys/file.h sys/ioctl.h sys/param.h sys/socket.h sys/systeminfo.h]) AC_CHECK_HEADERS([sys/time.h unistd.h values.h dlfcn.h signal.h ucontext.h]) AC_CHECK_HEADERS([assert.h ctype.h direct.h errno.h excpt.h fenv.h fpu_control.h grp.h]) AC_CHECK_HEADERS([ieeefp.h io.h math.h memory.h netinet/tcp.h poll.h pwd.h siginfo.h]) AC_CHECK_HEADERS([stdarg.h sys/errno.h sys/filio.h sys/mman.h sys/resource.h]) AC_CHECK_HEADERS([sys/signal.h sys/sockio.h sys/stat.h termios.h sys/termios.h sys/times.h]) AC_CHECK_HEADERS([sys/types.h sys/uio.h sys/un.h sys/utsname.h sys/select.h sys/sysctl.h]) AC_CHECK_HEADERS([sys/elf_SPARC.h sys/elf_386.h sys/elf_amd64.h asm/elf.h]) AC_CHECK_HEADERS([windows.h tchar.h semaphore.h]) AC_CHECK_HEADERS([stdint.h inttypes.h]) # Only check for the X headers if the user said --with-x. if test "${with_x+set}" = set; then AC_CHECK_HEADERS([X11/Xlib.h Xm/Xm.h]) fi PKG_PROG_PKG_CONFIG # Check for GMP AC_ARG_WITH([gmp], [AS_HELP_STRING([--with-gmp], [use the GMP library for arbitrary precision arithmetic @<:@default=check@:>@])], [], [with_gmp=check]) # If we want GMP check that the library and headers are installed. if test "x$with_gmp" != "xno"; then AC_CHECK_LIB([gmp], [__gmpn_tdiv_qr], [AC_DEFINE([HAVE_LIBGMP], [1], [Define to 1 if you have libgmp]) [LIBS="-lgmp $LIBS"] AC_CHECK_HEADER([gmp.h], [AC_DEFINE([HAVE_GMP_H], [1], [Define to 1 if you have the gmp.h header file])], [if test "x$with_gmp" != "xcheck"; then AC_MSG_FAILURE( [--with-gmp was given, but gmp.h header file is not installed]) fi ]) ], [if test "x$with_gmp" != "xcheck"; then AC_MSG_FAILURE( [--with-gmp was given, but gmp library (version 4 or later) is not installed]) fi ]) fi # libffi # libffi must be configured even if we are not building with it so that things like "make dist" work. 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Mainly, this allows a single-threaded build on OSes such as Mac OS X # that don't have proper multi-threaded profiling. AC_ARG_WITH([threads], [AS_HELP_STRING([--with-threads], [use the pthread library for multi-threading @<:@default=check@:>@])], [], [with_threads=check]) # If we want pthreads check that the library and headers are installed. # On Android pthread_create is in the standard library if test "x$with_threads" != "xno"; then AC_SEARCH_LIBS([pthread_create], [pthread], [AC_DEFINE([HAVE_LIBPTHREAD], [1], [Define to 1 if you have the `pthread' library (-lpthread).]) AC_CHECK_HEADER([pthread.h], [AC_DEFINE([HAVE_PTHREAD_H], [1], [Define to 1 if you have the header file.])], [if test "x$with_threads" != "xcheck"; then AC_MSG_FAILURE( [--with-threads was given, but pthread.h header file is not installed]) fi ]) ], [if test "x$with_threads" != "xcheck"; then AC_MSG_FAILURE( [--with-threads was given, but pthread library is not installed]) fi ]) fi # Find out which type of object code exporter to use. # If we have winnt use PECOFF. This really only applies to cygwin here. # If we have elf.h use ELF. # If we have mach-o/reloc.h use Mach-O # Otherwise use the C source code exporter. AC_CHECK_TYPES([IMAGE_FILE_HEADER], [AC_DEFINE([HAVE_PECOFF], [], [Define to 1 if you have the PE/COFF types.])] [polyexport=pecoff], [AC_CHECK_HEADER([elf.h], [AC_DEFINE([HAVE_ELF_H], [], [Define to 1 if you have the header file.])] [polyexport=elf], [AC_CHECK_HEADER([mach-o/reloc.h], [AC_DEFINE([HAVE_MACH_O_RELOC_H], [], [Define to 1 if you have the header file.])] [polyexport=macho], [AC_CHECK_HEADERS([elf_abi.h machine/reloc.h], [AC_DEFINE([HAVE_ELF_ABI_H], [], [Define to 1 if you have and header files.])] [polyexport=elf] )] )] )], [#include ] ) AM_CONDITIONAL([EXPPECOFF], [test "$polyexport" = pecoff]) AM_CONDITIONAL([EXPELF], [test "$polyexport" = elf]) AM_CONDITIONAL([EXPMACHO], [test "$polyexport" = macho]) # Checks for typedefs, structures, and compiler characteristics. AC_HEADER_STDBOOL AC_C_CONST AC_TYPE_INT16_T AC_TYPE_UINT16_T AC_TYPE_INT32_T AC_TYPE_UINT32_T AC_TYPE_INT64_T AC_TYPE_UINT64_T AC_TYPE_INTPTR_T AC_TYPE_UINTPTR_T AC_TYPE_UID_T AC_TYPE_MODE_T AC_TYPE_OFF_T AC_TYPE_PID_T AC_TYPE_SIZE_T AC_TYPE_SSIZE_T AC_HEADER_TIME AC_STRUCT_TM # Check for the various sub-second fields of the stat structure. AC_CHECK_MEMBERS([struct stat.st_atim, struct stat.st_atimespec, struct stat.st_atimensec, struct stat.st_atime_n, struct stat.st_uatime]) # Mac OS X, at any rate, needs signal.h to be included first. AC_CHECK_TYPES([ucontext_t], , , [#include "signal.h" #include "ucontext.h"]) AC_CHECK_TYPES([struct sigcontext, stack_t, sighandler_t, sig_t], , ,[#include "signal.h"]) AC_CHECK_TYPES([socklen_t],,,[#include "sys/types.h" #include "sys/socket.h"]) AC_CHECK_TYPES([SYSTEM_LOGICAL_PROCESSOR_INFORMATION],,,[#include "windows.h"]) AC_CHECK_TYPES(long long) AC_CHECK_TYPES(ssize_t) AC_CHECK_SIZEOF(void*) AC_CHECK_SIZEOF(long) AC_CHECK_SIZEOF(int) AC_CHECK_SIZEOF(long long) AC_CHECK_SIZEOF(double) AC_CHECK_SIZEOF(float) AC_C_BIGENDIAN # Checks for library functions. AC_FUNC_ERROR_AT_LINE AC_FUNC_GETGROUPS AC_FUNC_GETPGRP AC_PROG_GCC_TRADITIONAL AC_FUNC_SELECT_ARGTYPES AC_FUNC_STAT AC_FUNC_STRTOD AC_CHECK_FUNCS([dlopen strtod dtoa getpagesize sigaltstack mmap mkstemp]) ## There does not seem to be a declaration for fpsetmask in mingw64. AC_CHECK_DECLS([fpsetmask], [], [], [[#include ]]) AC_CHECK_FUNCS([sysctl sysctlbyname]) AC_CHECK_FUNCS([localtime_r gmtime_r]) AC_CHECK_FUNCS([ctermid tcdrain]) # Where are the registers? #Linux: AC_CHECK_MEMBERS([mcontext_t.gregs, mcontext_t.regs, mcontext_t.mc_esp],,,[#include "ucontext.h"]) #Mac OS X: AC_CHECK_MEMBERS([struct mcontext.ss, struct __darwin_mcontext.ss, struct __darwin_mcontext.__ss, struct __darwin_mcontext32.ss, struct __darwin_mcontext32.__ss, struct __darwin_mcontext64.ss, struct __darwin_mcontext64.__ss],,, [#include "signal.h" #include "ucontext.h"]) # FreeBSD includes a sun_len member in struct sockaddr_un AC_CHECK_MEMBERS([struct sockaddr_un.sun_len],,, [#include ]) # Check for .note.GNU-stack support, used for marking the stack as non-executable. AC_MSG_CHECKING([whether as supports .note.GNU-stack]) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[__asm__(".section .note.GNU-stack,\"\",@progbits");]])], [AC_MSG_RESULT([yes])] [AC_DEFINE([HAVE_GNU_STACK], [1], [Define to 1 if you have .note.GNU-stack support in the assembler.])], [AC_MSG_RESULT([no])]) # Build 32-bit in 64-bits. For the moment this is independent of the architecture. AC_ARG_ENABLE([compact32bit], [AS_HELP_STRING([--enable-compact32bit], [use 32-bit values rather than native 64-bits.])]) if test "x$enable_compact32bit" = "xyes"; then if test X"$ac_cv_sizeof_voidp" != X8; then AC_MSG_ERROR([--enable-compact32bit is only available on 64-bit architectures]) fi fi # This option enables the native code generator. More precisely it allows # the byte code interpreter to be built on X86. AC_ARG_ENABLE([native-codegeneration], [AS_HELP_STRING([--disable-native-codegeneration], [disable the native code generator and use the slow byte code interpreter instead.])], [case "${enableval}" in no) with_portable=yes ;; yes) with_portable=no ;; *) AC_MSG_ERROR([bad value ${enableval} for --enable-native-codegeneration]) ;; esac], [with_portable=check]) # Check which CPU we're building for. Can we use a native pre-built compiler # or do we need to fall back to the interpreter? case "${host_cpu}" in i[[3456]]86*) AC_DEFINE([HOSTARCHITECTURE_X86], [1], [Define if the host is an X86 (32-bit)]) polyarch=i386 ;; x86_64* | amd64*) if test X"$ac_cv_sizeof_voidp" = X8; then AC_DEFINE([HOSTARCHITECTURE_X86_64], [1], [Define if the host is an X86 (64-bit)]) if test "x$enable_compact32bit" = "xyes"; then AC_DEFINE([POLYML32IN64], [1], [Define if this should use 32-bit values in 64-bit architectures]) polyarch=x86_32in64 else polyarch=x86_64 fi else AC_DEFINE([HOSTARCHITECTURE_X32], [1], [Define if the host is an X86 (32-bit ABI, 64-bit processor)]) polyarch=interpret fi ;; sparc64*) AC_DEFINE([HOSTARCHITECTURE_SPARC64], [1], [Define if the host is a Sparc (64-bit)]) polyarch=interpret ;; sparc*) AC_DEFINE([HOSTARCHITECTURE_SPARC], [1], [Define if the host is a Sparc (32-bit)]) polyarch=interpret ;; powerpc64* | ppc64*) AC_DEFINE([HOSTARCHITECTURE_PPC64], [1], [Define if the host is a PowerPC (64-bit)]) polyarch=interpret ;; power* | ppc*) AC_DEFINE([HOSTARCHITECTURE_PPC], [1], [Define if the host is a PowerPC (32-bit)]) polyarch=interpret ;; arm*) AC_DEFINE([HOSTARCHITECTURE_ARM], [1], [Define if the host is an ARM (32-bit)]) polyarch=interpret ;; aarch64*) AC_DEFINE([HOSTARCHITECTURE_AARCH64], [1], [Define if the host is an ARM (64-bit)]) polyarch=interpret ;; hppa*) AC_DEFINE([HOSTARCHITECTURE_HPPA], [1], [Define if the host is an HP PA-RISC (32-bit)]) polyarch=interpret ;; ia64*) AC_DEFINE([HOSTARCHITECTURE_IA64], [1], [Define if the host is an Itanium]) polyarch=interpret ;; m68k*) AC_DEFINE([HOSTARCHITECTURE_M68K], [1], [Define if the host is a Motorola 68000]) polyarch=interpret ;; mips64*) AC_DEFINE([HOSTARCHITECTURE_MIPS64], [1], [Define if the host is a MIPS (64-bit)]) polyarch=interpret ;; mips*) AC_DEFINE([HOSTARCHITECTURE_MIPS], [1], [Define if the host is a MIPS (32-bit)]) polyarch=interpret ;; s390x*) AC_DEFINE([HOSTARCHITECTURE_S390X], [1], [Define if the host is an S/390 (64-bit)]) polyarch=interpret ;; s390*) AC_DEFINE([HOSTARCHITECTURE_S390], [1], [Define if the host is an S/390 (32-bit)]) polyarch=interpret ;; sh*) AC_DEFINE([HOSTARCHITECTURE_SH], [1], [Define if the host is a SuperH (32-bit)]) polyarch=interpret ;; alpha*) AC_DEFINE([HOSTARCHITECTURE_ALPHA], [1], [Define if the host is an Alpha (64-bit)]) polyarch=interpret # GCC defaults to non-conforming floating-point, and does not respect the rounding mode # in the floating-point control register, so we force it to conform to IEEE and use the # dynamic suffix on the floating-point instructions it produces. CFLAGS="$CFLAGS -mieee -mfp-rounding-mode=d" CXXFLAGS="$CXXFLAGS -mieee -mfp-rounding-mode=d" ;; riscv32) AC_DEFINE([HOSTARCHITECTURE_RISCV32], [1], [Define if the host is a RISC-V (32-bit)]) polyarch=interpret ;; riscv64) AC_DEFINE([HOSTARCHITECTURE_RISCV64], [1], [Define if the host is a RISC-V (64-bit)]) polyarch=interpret ;; *) AC_MSG_ERROR([Poly/ML is not supported for this architecture]) ;; esac # If we explicitly asked to use the interpreter set the architecture to interpreted. if test "x$with_portable" = "xyes" ; then if test "x$polyarch" != "xinterpret" ; then AC_MSG_WARN( [*******You have disabled native code generation. Are you really sure you want to do that?*******]) fi polyarch=interpret fi # If we asked not to use the interpreter check we have native code support. if test "x$with_portable" = "xno" ; then if test "x$polyarch" = "xinterpret" ; then AC_MSG_ERROR( [--enable-native-codegeneration was given but native code is not supported on this platform]) fi fi # Put this test at the end where it's less likely to be missed. # If we're compiling on Cygwin (and mingw?) and /usr/bin/file is not present # the link step will produce some strange warning messages of the form: # "Warning: linker path does not have real file for library -lXXX". I think # that's really a bug in autoconf but to explain what's happening to the user # add a test here. if test "$lt_cv_file_magic_cmd" = "func_win32_libid"; then if test \! -x /usr/bin/file; then echo "" echo "*** Warning: You are building Poly/ML on Cygwin/Mingw but '/usr/bin/file' cannot be found." echo "*** You can still go ahead and build Poly/ML but libpolyml will not be built as a" echo "*** shared library and you may get strange warning messages from the linker step." echo "*** Install the 'file' package to correct this problem." echo "" fi fi AM_CONDITIONAL([ARCHI386], [test "$polyarch" = i386]) AM_CONDITIONAL([ARCHX86_64], [test "$polyarch" = x86_64]) AM_CONDITIONAL([ARCHINTERPRET], [test "$polyarch" = interpret -a X"$ac_cv_sizeof_voidp" = X4]) AM_CONDITIONAL([ARCHINTERPRET64], [test "$polyarch" = interpret -a X"$ac_cv_sizeof_voidp" = X8]) AM_CONDITIONAL([ARCHX8632IN64], [test "$polyarch" = x86_32in64]) # If we are targeting Windows rather than *nix we need the pre=built compiler with Windows conventions. AM_CONDITIONAL([WINDOWSCALLCONV], [test "$poly_use_windowscc" = yes]) # This is true if we are building for native Windows rather than Cygwin AM_CONDITIONAL([NATIVE_WINDOWS], [test "$poly_native_windows" = yes]) AM_CONDITIONAL([NO_UNDEFINED], [test "$poly_no_undefined" = yes]) AM_CONDITIONAL([MACOSLDOPTS], [test "$poly_need_macosopt" = yes ]) # If we're building only the static version of libpolyml # then polyc and polyml.pc have to include the dependent libraries. -dependentlibs = "" +dependentlibs="" if test "${enable_shared}" != yes; then dependentlibs=${LIBS} fi AC_SUBST([dependentlibs], ["$dependentlibs"]) # Test whether this is a git directory and set the version if possible AC_CHECK_PROG([gitinstalled], [git], [yes], [no]) if test X"$gitinstalled" = "Xyes" -a -d ".git"; then GIT_VERSION='-DGIT_VERSION=\"$(shell git describe --tags --always)\"' AC_SUBST(GIT_VERSION) fi # Strip -fdebug-prefix-map= from CFLAGS; it's meaningless for users of polyc, # and hurts reproducibility. polyc_CFLAGS= for cflag in $CFLAGS; do cflag="${cflag##-fdebug-prefix-map=*}" if test -n "$cflag"; then if test -n "$polyc_CFLAGS"; then polyc_CFLAGS="$polyc_CFLAGS $cflag" else polyc_CFLAGS="$cflag" fi fi done AC_SUBST([polyc_CFLAGS], ["$polyc_CFLAGS"]) # Modules directory AC_ARG_WITH([moduledir], [AS_HELP_STRING([--with-moduledir=DIR], [directory for Poly/ML modules])], [moduledir=$withval], [moduledir="\${libdir}/polyml/modules"]) AC_SUBST([moduledir], [$moduledir]) # Control whether to build the basis library with arbitrary precision as the default int AC_ARG_ENABLE([intinf-as-int], [AS_HELP_STRING([--enable-intinf-as-int], [set arbitrary precision as the default int type])], [case "${enableval}" in no) intisintinf=no ;; yes) intisintinf=yes ;; *) AC_MSG_ERROR([bad value ${enableval} for --enable-intinf-as-int]) ;; esac], [intisintinf=no]) AM_CONDITIONAL([INTINFISINT], [test "$intisintinf" = "yes"]) # These are needed for building in a separate build directory, as they are # referenced from exportPoly.sml. AC_CONFIG_COMMANDS([basis], [test -e basis || ln -sf ${ac_top_srcdir}/basis .]) AC_CONFIG_COMMANDS([mlsource], [test -e mlsource || ln -sf ${ac_top_srcdir}/mlsource .]) AC_CONFIG_FILES([Makefile libpolyml/Makefile libpolyml/polyml.pc libpolymain/Makefile modules/Makefile modules/IntInfAsInt/Makefile]) AC_CONFIG_FILES([polyc], [chmod +x polyc]) AC_OUTPUT diff --git a/libpolyml/arb.cpp b/libpolyml/arb.cpp index eba4cee7..dead4fe7 100644 --- a/libpolyml/arb.cpp +++ b/libpolyml/arb.cpp @@ -1,2033 +1,2033 @@ /* Title: Arbitrary Precision Package. Author: Dave Matthews, Cambridge University Computer Laboratory Further modification Copyright 2010, 2012, 2015, 2017 David C. J. Matthews Copyright (c) 2000 Cambridge University Technical Services Limited This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ /* Arbitrary precision package in C. Integers are held in two formats in this system, long-form and short-form. The two are distinquished by the integer tag bit, short-form having the tag bit set and pointers to long-form being untagged. The long-form integers use the standard Poly format for multi-word objects, with the length count and flags in the word just before the object pointed to. The sign of long-form integers is coded in one of the flag bits. Short integers are signed quantities, and can be directly manipulated by the relevant instructions, but if overflow occurs then the full long versions of the operations will need to be called. There are two versions of long-form integers depending on whether the GMP library is available. If it is then the byte cells contain "limbs", typically native 32 or 64-bit words. If it is not, the fall-back Poly code is used in which long-form integers are vectors of bytes (i.e. unsigned char). Integers are always stored in the least possible number of words, and will be shortened to the short-form when possible. Thanks are due to D. Knuth for the long division algorithm. */ #ifdef HAVE_CONFIG_H #include "config.h" #elif defined(_WIN32) #include "winconfig.h" #else #error "No configuration file" #endif #ifdef HAVE_STDIO_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_ALLOCA_H #include #endif #ifdef HAVE_MALLOC_H #include #endif #ifdef HAVE_ASSERT_H #include #define ASSERT(x) assert(x) #else #define ASSERT(x) #endif #ifdef HAVE_GMP_H #include #define USE_GMP 1 #endif #include "globals.h" #include "sys.h" #include "run_time.h" #include "arb.h" #include "save_vec.h" #include "processes.h" #include "memmgr.h" #include "rtsentry.h" #include "profiling.h" extern "C" { POLYEXTERNALSYMBOL POLYUNSIGNED PolyAddArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolySubtractArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyMultiplyArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyDivideArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyRemainderArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyQuotRemArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2, PolyWord arg3); POLYEXTERNALSYMBOL POLYUNSIGNED PolyQuotRemArbitraryPair(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYSIGNED PolyCompareArbitrary(PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyGCDArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyLCMArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetLowOrderAsLargeWord(FirstArgument threadId, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyOrArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyAndArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyXorArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2); } static Handle add_longc(TaskData *taskData, Handle,Handle); static Handle sub_longc(TaskData *taskData, Handle,Handle); static Handle or_longc(TaskData *taskData, Handle,Handle); static Handle and_longc(TaskData *taskData, Handle,Handle); static Handle xor_longc(TaskData *taskData, Handle,Handle); static Handle neg_longc(TaskData *taskData, Handle); static Handle gcd_arbitrary(TaskData *taskData, Handle,Handle); static Handle lcm_arbitrary(TaskData *taskData, Handle,Handle); // Number of bits in a Poly word. N.B. This is not necessarily the same as SIZEOF_VOIDP. #define BITS_PER_POLYWORD (SIZEOF_POLYWORD*8) #ifdef USE_GMP #if (BITS_PER_POLYWORD > GMP_LIMB_BITS) // We're assuming that every GMP limb occupies at least one word #error "Size of GMP limb is less than a Poly word" #endif #endif #ifdef USE_GMP #define DEREFLIMBHANDLE(_x) ((mp_limb_t *)DEREFHANDLE(_x)) // Returns the length of the argument with trailing zeros removed. static mp_size_t numLimbs(PolyWord x) { POLYUNSIGNED numWords = OBJECT_LENGTH(x); #if BITS_PER_POLYWORD != GMP_LIMB_BITS ASSERT((numWords & (sizeof(mp_limb_t)/sizeof(PolyWord)-1)) == 0); #endif mp_size_t lu = numWords*sizeof(PolyWord)/sizeof(mp_limb_t); mp_limb_t *u = (mp_limb_t *)x.AsObjPtr(); while (lu > 0 && u[lu-1] == 0) lu--; return lu; } #else // Returns the length of the argument with trailing zeros removed. static POLYUNSIGNED get_length(PolyWord x) { byte *u = (byte *)x.AsObjPtr(); POLYUNSIGNED lu = OBJECT_LENGTH(x)*sizeof(PolyWord); for( ; (lu > 0) && (u[lu-1] == 0); lu--) { /* do nothing */ } return lu; } #endif // Return a uintptr_t value i.e. unsigned 32-bits on 32-bit architecture and 64-bits on 64-bit architecture. POLYUNSIGNED getPolyUnsigned(TaskData *taskData, PolyWord number) { if ( IS_INT(number) ) { POLYSIGNED i = UNTAGGED(number); if ( i < 0 ) raise_exception0(taskData, EXC_size ); return i; } else { if (OBJ_IS_NEGATIVE(GetLengthWord(number))) raise_exception0(taskData, EXC_size ); #ifdef USE_GMP unsigned length = numLimbs(number); if (length > 1) raise_exception0(taskData, EXC_size); mp_limb_t first = *(mp_limb_t*)number.AsCodePtr(); #if (BITS_PER_POLYWORD < GMP_NUMB_BITS) if (first > (mp_limb_t)1 << BITS_PER_POLYWORD) raise_exception0(taskData, EXC_size); #endif return first; #else byte *ptr = number.AsCodePtr(); POLYUNSIGNED length = get_length(number); if (length > sizeof(PolyWord) ) raise_exception0(taskData, EXC_size); POLYSIGNED c = 0; while ( length-- ) c = (c << 8) | ((byte *) ptr)[length]; return c; #endif } } #define MAX_INT_PLUS1 ((POLYUNSIGNED)0x80 << ( (sizeof(PolyWord)-1) *8)) // Return an intptr_t value i.e. signed 32-bits on 32-bit architecture and 64-bits on 64-bit architecture. POLYSIGNED getPolySigned(TaskData *taskData, PolyWord number) { if ( IS_INT(number) ) { return UNTAGGED(number); } else { int sign = OBJ_IS_NEGATIVE(GetLengthWord(number)) ? -1 : 0; #ifdef USE_GMP unsigned length = numLimbs(number); if (length > 1) raise_exception0(taskData, EXC_size); mp_limb_t c = *(mp_limb_t*)number.AsCodePtr(); #else POLYUNSIGNED length = get_length(number); POLYUNSIGNED c = 0; byte *ptr = number.AsCodePtr(); if ( length > sizeof(PolyWord) ) raise_exception0(taskData, EXC_size ); while ( length-- ) { c = (c << 8) | ptr[length]; } #endif if ( sign == 0 && c < MAX_INT_PLUS1) return (POLYSIGNED)c; if ( sign != 0 && c <= MAX_INT_PLUS1) return -((POLYSIGNED)c); raise_exception0(taskData, EXC_size ); /*NOTREACHED*/ return 0; } } short get_C_short(TaskData *taskData, PolyWord number) { int i = (int)get_C_long(taskData, number); if ( i <= 32767 && i >= -32768 ) return i; raise_exception0(taskData, EXC_size ); /*NOTREACHED*/ return 0; } unsigned short get_C_ushort(TaskData *taskData, PolyWord number) { POLYUNSIGNED u = get_C_ulong(taskData, number ); if ( u <= 65535 ) return (short)u; raise_exception0(taskData, EXC_size ); /*NOTREACHED*/ return 0; } #if (SIZEOF_LONG == SIZEOF_POLYWORD) unsigned get_C_unsigned(TaskData *taskData, PolyWord number) { return get_C_ulong(taskData, number); } int get_C_int(TaskData *taskData, PolyWord number) { return get_C_long(taskData, number); } #else // Poly words are the same size as a pointer but that may // not be the same as int or long. unsigned get_C_unsigned(TaskData *taskData, PolyWord number) { POLYUNSIGNED res = get_C_ulong(taskData, number); unsigned result = (unsigned)res; if ((POLYUNSIGNED)result != res) raise_exception0(taskData, EXC_size); return result; } int get_C_int(TaskData *taskData, PolyWord number) { POLYSIGNED res = get_C_long(taskData, number); int result = (int)res; if ((POLYSIGNED)result != res) raise_exception0(taskData, EXC_size); return result; } #endif // Convert short values to long. Returns a pointer to the memory. // This is generally called before allocating memory for the result. // It is unsafe to use the result after the allocation if the value is // an address because it may have been moved by a GC. #ifdef USE_GMP static mp_limb_t *convertToLong(Handle x, mp_limb_t *extend, mp_size_t *length, int *sign) { if (IS_INT(x->Word())) { // Short form - put it in the temporary. POLYSIGNED x_v = UNTAGGED(DEREFWORD(x)); if (x_v < 0) x_v = -x_v; *extend = x_v; if (x_v == 0) *length = 0; else *length = 1; if (sign) *sign = UNTAGGED(x->Word()) >= 0 ? 0 : -1; return extend; } else { *length = numLimbs(x->Word()); if (sign) *sign = OBJ_IS_NEGATIVE(GetLengthWord(x->Word())) ? -1 : 0; return DEREFLIMBHANDLE(x); } } #else static byte *convertToLong(Handle x, byte *extend, POLYUNSIGNED *length, int *sign) { if (IS_INT(x->Word())) { // Short form - put it in the temporary. POLYSIGNED x_v = UNTAGGED(DEREFWORD(x)); if (x_v < 0) x_v = -x_v; /* Put into extend buffer, low order byte first. */ *length = 0; for (unsigned i = 0; i < sizeof(PolyWord); i++) { if (x_v != 0) *length = i + 1; extend[i] = x_v & 0xff; x_v = x_v >> 8; } if (sign) *sign = UNTAGGED(x->Word()) >= 0 ? 0 : -1; return extend; } else { *length = get_length(DEREFWORD(x)); if (sign) *sign = OBJ_IS_NEGATIVE(GetLengthWord(x->Word())) ? -1 : 0; return DEREFBYTEHANDLE(x); } } #endif /* make_canonical is used to force a result into its shortest form, in the style of get_length, but also may convert its argument from long to short integer */ static Handle make_canonical(TaskData *taskData, Handle x, int sign) { #ifdef USE_GMP unsigned size = numLimbs(DEREFWORD(x)); if (size <= 1) // May be zero if the result is zero. { mp_limb_t r = *DEREFLIMBHANDLE(x); if (r <= MAXTAGGED || (r == MAXTAGGED+1 && sign < 0)) { if (sign < 0) return taskData->saveVec.push(TAGGED(-(POLYSIGNED)r)); else return taskData->saveVec.push(TAGGED(r)); } } // Throw away any unused words. DEREFWORDHANDLE(x)->SetLengthWord(WORDS(size*sizeof(mp_limb_t)), F_BYTE_OBJ | (sign < 0 ? F_NEGATIVE_BIT: 0)); return x; #else /* get length in BYTES */ POLYUNSIGNED size = get_length(DEREFWORD(x)); // We can use the short representation if it will fit in a word. if (size <= sizeof(PolyWord)) { /* Convert the digits. */ byte *u = DEREFBYTEHANDLE(x); POLYUNSIGNED r = 0; for (unsigned i=0; i < sizeof(PolyWord); i++) { r |= ((POLYUNSIGNED)u[i]) << (8*i); } /* Check for MAXTAGGED+1 before subtraction in case MAXTAGGED is 0x7fffffff */ if (r <= MAXTAGGED || (r == MAXTAGGED+1 && sign < 0)) { if (sign < 0) return taskData->saveVec.push(TAGGED(-(POLYSIGNED)r)); else return taskData->saveVec.push(TAGGED(r)); } } /* The length word of the object is changed to reflect the new length. This is safe because any words thrown away must be zero. */ DEREFWORDHANDLE(x)->SetLengthWord(WORDS(size), F_BYTE_OBJ | (sign < 0 ? F_NEGATIVE_BIT: 0)); return x; #endif } Handle ArbitraryPrecionFromSigned(TaskData *taskData, POLYSIGNED val) /* Called from routines in the run-time system to generate an arbitrary precision integer from a word value. */ { if (val <= MAXTAGGED && val >= -MAXTAGGED-1) /* No overflow */ return taskData->saveVec.push(TAGGED(val)); POLYUNSIGNED uval = val < 0 ? -val : val; #ifdef USE_GMP Handle y = alloc_and_save(taskData, WORDS(sizeof(mp_limb_t)), ((val < 0) ? F_NEGATIVE_BIT : 0)| F_BYTE_OBJ); mp_limb_t *v = DEREFLIMBHANDLE(y); *v = uval; #else Handle y = alloc_and_save(taskData, 1, ((val < 0) ? F_NEGATIVE_BIT : 0)| F_BYTE_OBJ); byte *v = DEREFBYTEHANDLE(y); for (POLYUNSIGNED i = 0; uval != 0; i++) { v[i] = (byte)(uval & 0xff); uval >>= 8; } #endif return y; } Handle ArbitraryPrecionFromUnsigned(TaskData *taskData, POLYUNSIGNED uval) /* Called from routines in the run-time system to generate an arbitrary precision integer from an unsigned value. */ { if (uval <= MAXTAGGED) return taskData->saveVec.push(TAGGED(uval)); #ifdef USE_GMP Handle y = alloc_and_save(taskData, WORDS(sizeof(mp_limb_t)), F_BYTE_OBJ); mp_limb_t *v = DEREFLIMBHANDLE(y); *v = uval; #else Handle y = alloc_and_save(taskData, 1, F_BYTE_OBJ); byte *v = DEREFBYTEHANDLE(y); for (POLYUNSIGNED i = 0; uval != 0; i++) { v[i] = (byte)(uval & 0xff); uval >>= 8; } #endif return y; } Handle Make_arbitrary_precision(TaskData *taskData, int val) { return ArbitraryPrecionFromSigned(taskData, val); } Handle Make_arbitrary_precision(TaskData *taskData, unsigned uval) { return ArbitraryPrecionFromUnsigned(taskData, uval); } #if (SIZEOF_LONG <= SIZEOF_POLYWORD) Handle Make_arbitrary_precision(TaskData *taskData, long val) { return ArbitraryPrecionFromSigned(taskData, val); } Handle Make_arbitrary_precision(TaskData *taskData, unsigned long uval) { return ArbitraryPrecionFromUnsigned(taskData, uval); } #else // This is needed in Unix in 32-in-64. Handle Make_arbitrary_precision(TaskData *taskData, long val) { if (val <= (long)(MAXTAGGED) && val >= -((long)(MAXTAGGED))-1) /* No overflow */ return taskData->saveVec.push(TAGGED((POLYSIGNED)val)); // Recursive call to handle the high-order part Handle hi = Make_arbitrary_precision(taskData, val >> (sizeof(int32_t) * 8)); // The low-order part is treated as UNsigned. Handle lo = Make_arbitrary_precision(taskData, (uint32_t)val); Handle twoTo16 = taskData->saveVec.push(TAGGED(65536)); Handle twoTo32 = mult_longc(taskData, twoTo16, twoTo16); return add_longc(taskData, mult_longc(taskData, hi, twoTo32), lo); } Handle Make_arbitrary_precision(TaskData *taskData, unsigned long uval) { if (uval <= (unsigned long)(MAXTAGGED)) return taskData->saveVec.push(TAGGED((POLYUNSIGNED)uval)); // Recursive call to handle the high-order part Handle hi = Make_arbitrary_precision(taskData, uval >> (sizeof(uint32_t) * 8)); Handle lo = Make_arbitrary_precision(taskData, (uint32_t)uval); Handle twoTo16 = taskData->saveVec.push(TAGGED(65536)); Handle twoTo32 = mult_longc(taskData, twoTo16, twoTo16); return add_longc(taskData, mult_longc(taskData, hi, twoTo32), lo); } #endif #ifdef HAVE_LONG_LONG #if (SIZEOF_LONG_LONG <= SIZEOF_POLYWORD) Handle Make_arbitrary_precision(TaskData *taskData, long long val) { return ArbitraryPrecionFromSigned(taskData, val); } Handle Make_arbitrary_precision(TaskData *taskData, unsigned long long uval) { return ArbitraryPrecionFromUnsigned(taskData, uval); } #else // 32-bit implementation. Handle Make_arbitrary_precision(TaskData *taskData, long long val) { if (val <= (long long)(MAXTAGGED) && val >= -((long long)(MAXTAGGED))-1) /* No overflow */ return taskData->saveVec.push(TAGGED((POLYSIGNED)val)); // Recursive call to handle the high-order part Handle hi = Make_arbitrary_precision(taskData, val >> (sizeof(int32_t) * 8)); // The low-order part is treated as UNsigned. Handle lo = Make_arbitrary_precision(taskData, (uint32_t)val); Handle twoTo16 = taskData->saveVec.push(TAGGED(65536)); Handle twoTo32 = mult_longc(taskData, twoTo16, twoTo16); return add_longc(taskData, mult_longc(taskData, hi, twoTo32), lo); } Handle Make_arbitrary_precision(TaskData *taskData, unsigned long long uval) { if (uval <= (unsigned long long)(MAXTAGGED)) return taskData->saveVec.push(TAGGED((POLYUNSIGNED)uval)); // Recursive call to handle the high-order part Handle hi = Make_arbitrary_precision(taskData, uval >> (sizeof(uint32_t) * 8)); Handle lo = Make_arbitrary_precision(taskData, (uint32_t)uval); Handle twoTo16 = taskData->saveVec.push(TAGGED(65536)); Handle twoTo32 = mult_longc(taskData, twoTo16, twoTo16); return add_longc(taskData, mult_longc(taskData, hi, twoTo32), lo); } #endif #endif #if defined(_WIN32) // Creates an arbitrary precision number from two words. // Used only in Windows for FILETIME and file-size. Handle Make_arb_from_32bit_pair(TaskData *taskData, uint32_t hi, uint32_t lo) { Handle hHi = Make_arbitrary_precision(taskData, hi); Handle hLo = Make_arbitrary_precision(taskData, lo); Handle twoTo16 = taskData->saveVec.push(TAGGED(65536)); Handle twoTo32 = mult_longc(taskData, twoTo16, twoTo16); return add_longc(taskData, mult_longc(taskData, hHi, twoTo32), hLo); } // Convert a Windows FILETIME into an arbitrary precision integer Handle Make_arb_from_Filetime(TaskData *taskData, const FILETIME &ft) { return Make_arb_from_32bit_pair(taskData, ft.dwHighDateTime, ft.dwLowDateTime); } #endif /* Returns hi*scale+lo as an arbitrary precision number. Currently used for Unix time values where the time is returned as two words, a number of seconds and a number of microseconds and we wish to return the result as a number of microseconds. */ Handle Make_arb_from_pair_scaled(TaskData *taskData, unsigned hi, unsigned lo, unsigned scale) { /* We might be able to compute the number as a 64 bit quantity and then convert it but this is probably more portable. It does risk overflowing the save vector. */ Handle hHi = Make_arbitrary_precision(taskData, hi); Handle hLo = Make_arbitrary_precision(taskData, lo); Handle hScale = Make_arbitrary_precision(taskData, scale); return add_longc(taskData, mult_longc(taskData, hHi, hScale), hLo); } Handle neg_longc(TaskData *taskData, Handle x) { if (IS_INT(DEREFWORD(x))) { POLYSIGNED s = UNTAGGED(DEREFWORD(x)); if (s != -MAXTAGGED-1) // If it won't overflow return taskData->saveVec.push(TAGGED(-s)); } // Either overflow or long argument - convert to long form. int sign_x; #if USE_GMP mp_limb_t x_extend; mp_size_t lx; (void)convertToLong(x, &x_extend, &lx, &sign_x); #else byte x_extend[sizeof(PolyWord)]; POLYUNSIGNED lx; (void)convertToLong(x, x_extend, &lx, &sign_x); #endif #ifdef USE_GMP POLYUNSIGNED bytes = lx*sizeof(mp_limb_t); #else POLYUNSIGNED bytes = lx; #endif Handle long_y = alloc_and_save(taskData, WORDS(bytes), F_MUTABLE_BIT|F_BYTE_OBJ); byte *v = DEREFBYTEHANDLE(long_y); if (IS_INT(DEREFWORD(x))) memcpy(v, (byte*)x_extend, bytes); else memcpy(v, DEREFBYTEHANDLE(x), bytes); #ifndef USE_GMP // Make sure the last word is zero. We may have unused bytes there. memset(v+bytes, 0, WORDS(bytes)*sizeof(PolyWord)-lx); #endif /* Return the value with the sign changed. */ return make_canonical(taskData, long_y, sign_x ^ -1); } /* neg_longc */ #ifdef USE_GMP static Handle add_unsigned_long(TaskData *taskData, Handle x, Handle y, int sign) { /* find the longer number */ mp_size_t lx, ly; mp_limb_t x_extend, y_extend; mp_limb_t *xb = convertToLong(x, &x_extend, &lx, NULL); mp_limb_t *yb = convertToLong(y, &y_extend, &ly, NULL); mp_limb_t *u; /* limb-pointer for longer number */ mp_limb_t *v; /* limb-pointer for shorter number */ Handle z; mp_size_t lu; /* length of u in limbs */ mp_size_t lv; /* length of v in limbs */ if (lx < ly) { // Get result vector. It must be 1 limb longer than u // to have space for any carry. z = alloc_and_save(taskData, WORDS((ly+1)*sizeof(mp_limb_t)), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(y)) ? yb : DEREFLIMBHANDLE(y); v = IS_INT(DEREFWORD(x)) ? xb : DEREFLIMBHANDLE(x); lu = ly; lv = lx; } else { // Get result vector. It must be 1 limb longer than u // to have space for any carry. z = alloc_and_save(taskData, WORDS((lx+1)*sizeof(mp_limb_t)), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(x)) ? xb : DEREFLIMBHANDLE(x); v = IS_INT(DEREFWORD(y)) ? yb : DEREFLIMBHANDLE(y); lu = lx; lv = ly; } mp_limb_t *w = DEREFLIMBHANDLE(z); // Do the addition. mp_limb_t carry = 0; if (lv != 0) carry = mpn_add_n(w, u, v, lv); // Add the carry to the rest of the longer number. if (lu != lv) carry = mpn_add_1(w+lv, u+lv, lu-lv, carry); // Put the remaining carry in the final limb. w[lu] = carry; return make_canonical(taskData, z, sign); } #else static Handle add_unsigned_long(TaskData *taskData, Handle x, Handle y, int sign) { byte x_extend[sizeof(PolyWord)], y_extend[sizeof(PolyWord)]; POLYUNSIGNED lx; /* length of u in bytes */ POLYUNSIGNED ly; /* length of v in bytes */ byte *xb = convertToLong(x, x_extend, &lx, NULL); byte *yb = convertToLong(y, y_extend, &ly, NULL); Handle z; byte *u; /* byte-pointer for longer number */ byte *v; /* byte-pointer for shorter number */ POLYUNSIGNED lu, lv; /* Make ``u'' the longer. */ if (lx < ly) { // Get result vector. It must be 1 byte longer than u // to have space for any carry. z = alloc_and_save(taskData, WORDS(ly+1), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(y)) ? yb : DEREFBYTEHANDLE(y); v = IS_INT(DEREFWORD(x)) ? xb : DEREFBYTEHANDLE(x); lu = ly; lv = lx; } else { // Get result vector. It must be 1 byte longer than u // to have space for any carry, plus one byte for the sign. z = alloc_and_save(taskData, WORDS(lx+2), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(x)) ? xb : DEREFBYTEHANDLE(x); v = IS_INT(DEREFWORD(y)) ? yb : DEREFBYTEHANDLE(y); lu = lx; lv = ly; } /* do the actual addition */ byte *w = DEREFBYTEHANDLE(z); unsigned carry = 0; POLYUNSIGNED i = 0; /* Do the additions */ for( ; i < lv; i++) { carry += u[i] + v[i]; w[i] = carry & 0xff; carry >>= 8; } /* Add the carry to the rest of ``u''. */ for( ; i < lu; i++) { carry += u[i]; w[i] = carry & 0xff; carry >>= 8; } /* Finally put the carry into the last byte */ w[i] = (byte)carry; return make_canonical(taskData, z, sign); } /* add_unsigned_long */ #endif #ifdef USE_GMP static Handle sub_unsigned_long(TaskData *taskData, Handle x, Handle y, int sign) { mp_limb_t *u; /* limb-pointer alias for larger number */ mp_limb_t *v; /* limb-pointer alias for smaller number */ mp_size_t lu; /* length of u in limbs */ mp_size_t lv; /* length of v in limbs */ Handle z; /* get the larger argument into ``u'' */ /* This is necessary so that we can discard */ /* the borrow at the end of the subtraction */ mp_size_t lx, ly; mp_limb_t x_extend, y_extend; mp_limb_t *xb = convertToLong(x, &x_extend, &lx, NULL); mp_limb_t *yb = convertToLong(y, &y_extend, &ly, NULL); // Find the larger number. Check the lengths first and if they're equal check the values. int res; if (lx < ly) res = -1; else if (lx > ly) res = 1; else res = mpn_cmp(xb, yb, lx); // If they're equal the result is zero. if (res == 0) return taskData->saveVec.push(TAGGED(0)); /* They are equal */ if (res < 0) { sign ^= -1; /* swap sign of result */ z = alloc_and_save(taskData, WORDS(ly*sizeof(mp_limb_t)), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(y)) ? yb : DEREFLIMBHANDLE(y); v = IS_INT(DEREFWORD(x)) ? xb : DEREFLIMBHANDLE(x); lu = ly; lv = lx; } else { z = alloc_and_save(taskData, WORDS(lx*sizeof(mp_limb_t)), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(x)) ? xb : DEREFLIMBHANDLE(x); v = IS_INT(DEREFWORD(y)) ? yb : DEREFLIMBHANDLE(y); lu = lx; lv = ly; } mp_limb_t *w = DEREFLIMBHANDLE(z); // Do the subtraction. mp_limb_t borrow = 0; if (lv != 0) borrow = mpn_sub_n(w, u, v, lv); // Subtract the borrow from the rest of the longer number. if (lu != lv) borrow = mpn_sub_1(w+lv, u+lv, lu-lv, borrow); return make_canonical(taskData, z, sign); } #else static Handle sub_unsigned_long(TaskData *taskData, Handle x, Handle y, int sign) { byte x_extend[sizeof(PolyWord)], y_extend[sizeof(PolyWord)]; /* This is necessary so that we can discard */ /* the borrow at the end of the subtraction */ POLYUNSIGNED lx, ly; byte *xb = convertToLong(x, x_extend, &lx, NULL); byte *yb = convertToLong(y, y_extend, &ly, NULL); byte *u; /* byte-pointer alias for larger number */ byte *v; /* byte-pointer alias for smaller number */ POLYUNSIGNED lu; /* length of u in bytes */ POLYUNSIGNED lv; /* length of v in bytes */ Handle z; /* get the larger argument into ``u'' */ if (lx < ly) { sign ^= -1; // swap sign of result z = alloc_and_save(taskData, WORDS(ly+1), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(y)) ? yb : DEREFBYTEHANDLE(y); v = IS_INT(DEREFWORD(x)) ? xb : DEREFBYTEHANDLE(x); lu = ly; lv = lx; } else if (ly < lx) { z = alloc_and_save(taskData, WORDS(lx+1), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(x)) ? xb : DEREFBYTEHANDLE(x); v = IS_INT(DEREFWORD(y)) ? yb : DEREFBYTEHANDLE(y); lu = lx; lv = ly; } else /* lx == ly */ { /* Must look at the numbers to decide which is bigger. */ POLYUNSIGNED i = lx; while (i > 0 && xb[i-1] == yb[i-1]) i--; if (i == 0) return taskData->saveVec.push(TAGGED(0)); /* They are equal */ if (xb[i-1] < yb[i-1]) { sign ^= -1; /* swap sign of result SPF 21/1/94 */ z = alloc_and_save(taskData, WORDS(ly+1), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(y)) ? yb : DEREFBYTEHANDLE(y); v = IS_INT(DEREFWORD(x)) ? xb : DEREFBYTEHANDLE(x); lu = ly; lv = lx; } else { z = alloc_and_save(taskData, WORDS(lx+1), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(x)) ? xb : DEREFBYTEHANDLE(x); v = IS_INT(DEREFWORD(y)) ? yb : DEREFBYTEHANDLE(y); lu = lx; lv = ly; } } byte *w = DEREFBYTEHANDLE(z); unsigned borrow = 1; /* Becomes 0 if there is a borrow */ POLYUNSIGNED i = 0; /* Do the subtractions */ for( ; i < lv; i++) { borrow += 255 + u[i] - v[i]; w[i] = borrow & 0xff; borrow >>= 8; } /* Add the borrow into the rest of ``u''. */ for( ; i < lu; i++) { borrow += 255 + u[i]; w[i] = borrow & 0xff; borrow >>= 8; } return make_canonical(taskData, z, sign); } /* sub_unsigned_long */ #endif Handle add_longc(TaskData *taskData, Handle y, Handle x) { if (IS_INT(DEREFWORD(x)) && IS_INT(DEREFWORD(y))) { /* Both short */ /* The easiest way to do the addition is simply *x-1+*y, but that makes it more difficult to check for overflow. */ POLYSIGNED t = UNTAGGED(DEREFWORD(x)) + UNTAGGED(DEREFWORD(y)); if (t <= MAXTAGGED && t >= -MAXTAGGED-1) /* No overflow */ { return taskData->saveVec.push(TAGGED(t)); } } int sign_x, sign_y; if (IS_INT(DEREFWORD(x))) sign_x = UNTAGGED(DEREFWORD(x)) >= 0 ? 0 : -1; else sign_x = OBJ_IS_NEGATIVE(GetLengthWord(DEREFWORD(x))) ? -1 : 0; if (IS_INT(DEREFWORD(y))) sign_y = UNTAGGED(DEREFWORD(y)) >= 0 ? 0 : -1; else sign_y = OBJ_IS_NEGATIVE(GetLengthWord(DEREFWORD(y))) ? -1 : 0; /* Work out whether to add or subtract */ if ((sign_y ^ sign_x) >= 0) /* signs the same? */ /* sign(x) * (abs(x) + abs(y)) */ return add_unsigned_long(taskData, x, y, sign_x); else /* sign(x) * (abs(x) - abs(y)) */ return sub_unsigned_long(taskData, x, y, sign_x); } /* add_longc */ Handle sub_longc(TaskData *taskData, Handle y, Handle x) { if (IS_INT(DEREFWORD(x)) && IS_INT(DEREFWORD(y))) /* Both short */ { /* The easiest way to do the subtraction is simply *x-*y+1, but that makes it more difficult to check for overflow. */ POLYSIGNED t = UNTAGGED(DEREFWORD(x)) - UNTAGGED(DEREFWORD(y)); if (t <= MAXTAGGED && t >= -MAXTAGGED-1) /* No overflow */ return taskData->saveVec.push(TAGGED(t)); } int sign_x, sign_y; if (IS_INT(DEREFWORD(x))) sign_x = UNTAGGED(DEREFWORD(x)) >= 0 ? 0 : -1; else sign_x = OBJ_IS_NEGATIVE(GetLengthWord(DEREFWORD(x))) ? -1 : 0; if (IS_INT(DEREFWORD(y))) sign_y = UNTAGGED(DEREFWORD(y)) >= 0 ? 0 : -1; else sign_y = OBJ_IS_NEGATIVE(GetLengthWord(DEREFWORD(y))) ? -1 : 0; /* If the signs are different add the two values. */ if ((sign_y ^ sign_x) < 0) /* signs differ */ { /* sign(x) * (abs(x) + abs(y)) */ return add_unsigned_long(taskData, x, y, sign_x); } else { /* sign(x) * (abs(x) - abs(y)) */ return sub_unsigned_long(taskData, x, y, sign_x); } } /* sub_longc */ Handle mult_longc(TaskData *taskData, Handle y, Handle x) { int sign_x, sign_y; #if USE_GMP mp_limb_t x_extend, y_extend; mp_size_t lx, ly; (void)convertToLong(x, &x_extend, &lx, &sign_x); (void)convertToLong(y, &y_extend, &ly, &sign_y); #else byte x_extend[sizeof(PolyWord)], y_extend[sizeof(PolyWord)]; POLYUNSIGNED lx, ly; (void)convertToLong(x, x_extend, &lx, &sign_x); (void)convertToLong(y, y_extend, &ly, &sign_y); #endif // Check for zero args. if (lx == 0 || ly == 0) return taskData->saveVec.push(TAGGED(0)); #if USE_GMP Handle z = alloc_and_save(taskData, WORDS((lx+ly)*sizeof(mp_limb_t)), F_MUTABLE_BIT|F_BYTE_OBJ); mp_limb_t *w = DEREFLIMBHANDLE(z); mp_limb_t *u = IS_INT(DEREFWORD(x)) ? &x_extend : DEREFLIMBHANDLE(x); mp_limb_t *v = IS_INT(DEREFWORD(y)) ? &y_extend : DEREFLIMBHANDLE(y); // The first argument must be the longer. if (lx < ly) mpn_mul(w, v, ly, u, lx); else mpn_mul(w, u, lx, v, ly); return make_canonical(taskData, z, sign_x ^ sign_y); #else /* Get space for result */ Handle long_z = alloc_and_save(taskData, WORDS(lx+ly+1), F_MUTABLE_BIT|F_BYTE_OBJ); /* Can now load the actual addresses because they will not change now. */ byte *u = IS_INT(DEREFWORD(x)) ? x_extend : DEREFBYTEHANDLE(x); byte *v = IS_INT(DEREFWORD(y)) ? y_extend : DEREFBYTEHANDLE(y); byte *w = DEREFBYTEHANDLE(long_z); for(POLYUNSIGNED i = 0; i < lx; i++) { POLYUNSIGNED j; long r = 0; /* Set the carry to zero */ for(j = 0; j < ly; j++) { /* Compute the product. */ r += u[i] * v[j]; /* Now add in to the result. */ r += w[i+j]; w[i+j] = r & 0xff; r >>= 8; } /* Put in any carry. */ w[i+j] = (byte)r; } return make_canonical(taskData, long_z, sign_x ^ sign_y); #endif } /* mult_long */ #ifndef USE_GMP static void div_unsigned_long(byte *u, byte *v, byte *remres, byte *divres, POLYUNSIGNED lu, POLYUNSIGNED lv) // Unsigned division. This is the main divide and remainder routine. // remres must be at least lu+1 bytes long // divres must be at least lu-lv+1 bytes long but can be zero if not required { POLYUNSIGNED i,j; long r; /* Find out how far to shift v to get a 1 in the top bit. */ int bits = 0; for(r = v[lv-1]; r < 128; r <<= 1) bits++; /* 128 ??? */ /* Shift u that amount into res. We have allowed enough room for overflow. */ r = 0; for (i = 0; i < lu; i++) { r |= u[i] << bits; /*``Or in'' the new bits after shifting*/ remres[i] = r & 0xff; /* Put into the destination. */ r >>= 8; /* and shift down the carry. */ } remres[i] = (byte)r; /* Put in the carry */ /* And v that amount. It has already been copied. */ if ( bits ) { r = 0; for (i = 0; i < lv; i++) { r |= v[i] << bits; v[i] = r & 0xff; r >>= 8; } /* No carry */ } for(j = lu; j >= lv; j--) { /* j iterates over the higher digits of the dividend until we are left with a number which is less than the divisor. This is the remainder. */ long quotient, dividend, r; dividend = remres[j]*256 + remres[j-1]; quotient = (remres[j] == v[lv-1]) ? 255 : dividend/(long)v[lv-1]; if (lv != 1) { while ((long)v[lv-2]*quotient > (dividend - quotient*(long)v[lv-1])*256 + (long)remres[j-2]) { quotient--; } } /* The quotient is at most 1 too large */ /* Subtract the product of this with ``v'' from ``res''. */ r = 1; /* Initial borrow */ for(i = 0; i < lv; i++) { r += 255 + remres[j-lv+i] - quotient * v[i]; remres[j-lv+i] = r & 0xff; r >>= 8; } r += remres[j]; /* Borrow from leading digit. */ /* If we are left with a borrow when the subtraction is complete the quotient must have been too big. We add ``v'' to the dividend and subtract 1 from the quotient. */ if (r == 0 /* would be 1 if there were no borrow */) { quotient --; r = 0; for (i = 0; i < lv; i++) { r += v[i] + remres[j-lv+i]; remres[j-lv+i] = r & 0xff; r >>= 8; } } /* Place the next digit of quotient in result */ if (divres) divres[j-lv] = (byte)quotient; } /* Likewise the remainder. */ if (bits) { r = 0; j = lv; while (j > 0) { j--; r |= remres[j]; remres[j] = (r >> bits) & 0xff; r = (r & 0xff) << 8; } } } /* div_unsigned_long */ #endif // Common code for div and mod. Returns handles to the results. static void quotRem(TaskData *taskData, Handle y, Handle x, Handle &remHandle, Handle &divHandle) { if (IS_INT(DEREFWORD(x)) && IS_INT(DEREFWORD(y))) /* Both short */ { POLYSIGNED xs = UNTAGGED(DEREFWORD(x)); POLYSIGNED ys = UNTAGGED(DEREFWORD(y)); /* Raise exceptions if dividing by zero. */ if (ys == 0) raise_exception0(taskData, EXC_divide); /* Only possible overflow is minint div -1 */ if (xs != -MAXTAGGED-1 || ys != -1) { divHandle = taskData->saveVec.push(TAGGED(xs / ys)); remHandle = taskData->saveVec.push(TAGGED(xs % ys)); return; } } int sign_x, sign_y; #if USE_GMP mp_limb_t x_extend, y_extend; mp_size_t lx, ly; (void)convertToLong(x, &x_extend, &lx, &sign_x); (void)convertToLong(y, &y_extend, &ly, &sign_y); // If length of v is zero raise divideerror. if (ly == 0) raise_exception0(taskData, EXC_divide); if (lx < ly) { divHandle = taskData->saveVec.push(TAGGED(0)); remHandle = x; /* When x < y remainder is x. */ return; } Handle remRes = alloc_and_save(taskData, WORDS(ly * sizeof(mp_limb_t)), F_MUTABLE_BIT | F_BYTE_OBJ); Handle divRes = alloc_and_save(taskData, WORDS((lx - ly + 1) * sizeof(mp_limb_t)), F_MUTABLE_BIT | F_BYTE_OBJ); mp_limb_t *u = IS_INT(DEREFWORD(x)) ? &x_extend : DEREFLIMBHANDLE(x); mp_limb_t *v = IS_INT(DEREFWORD(y)) ? &y_extend : DEREFLIMBHANDLE(y); mp_limb_t *quotient = DEREFLIMBHANDLE(divRes); mp_limb_t *remainder = DEREFLIMBHANDLE(remRes); // Do the division. mpn_tdiv_qr(quotient, remainder, 0, u, lx, v, ly); // Return the results. remHandle = make_canonical(taskData, remRes, sign_x /* Same sign as dividend */); divHandle = make_canonical(taskData, divRes, sign_x ^ sign_y); #else byte x_extend[sizeof(PolyWord)], y_extend[sizeof(PolyWord)]; POLYUNSIGNED lx, ly; (void)convertToLong(x, x_extend, &lx, &sign_x); - byte *long_y = convertToLong(y, y_extend, &ly, &sign_y); + (void)convertToLong(y, y_extend, &ly, &sign_y); /* If length of y is zero raise divideerror */ if (ly == 0) raise_exception0(taskData, EXC_divide); // If the length of divisor is less than the dividend the quotient is zero. if (lx < ly) { divHandle = taskData->saveVec.push(TAGGED(0)); remHandle = x; /* When x < y remainder is x. */ return; } /* copy in case it needs shifting */ Handle longCopyHndl = alloc_and_save(taskData, WORDS(ly), F_BYTE_OBJ | F_MUTABLE_BIT); byte *u = IS_INT(DEREFWORD(y)) ? y_extend : DEREFBYTEHANDLE(y); memcpy(DEREFBYTEHANDLE(longCopyHndl), u, ly); Handle divRes = alloc_and_save(taskData, WORDS(lx-ly+1), F_MUTABLE_BIT|F_BYTE_OBJ); Handle remRes = alloc_and_save(taskData, WORDS(lx+1), F_MUTABLE_BIT|F_BYTE_OBJ); byte *long_x = IS_INT(DEREFWORD(x)) ? x_extend : DEREFBYTEHANDLE(x); div_unsigned_long (long_x, DEREFBYTEHANDLE(longCopyHndl), DEREFBYTEHANDLE(remRes), DEREFBYTEHANDLE(divRes), lx, ly); /* Clear the rest */ for(POLYUNSIGNED i=ly; i < lx+1; i++) { DEREFBYTEHANDLE(remRes)[i] = 0; } remHandle = make_canonical(taskData, remRes, sign_x /* Same sign as dividend */ ); divHandle = make_canonical(taskData, divRes, sign_x ^ sign_y); #endif } // This returns x divided by y. This always rounds towards zero so // corresponds to Int.quot in ML not Int.div. Handle div_longc(TaskData *taskData, Handle y, Handle x) { Handle remHandle, divHandle; quotRem(taskData, y, x, remHandle, divHandle); return divHandle; } Handle rem_longc(TaskData *taskData, Handle y, Handle x) { Handle remHandle, divHandle; quotRem(taskData, y, x, remHandle, divHandle); return remHandle; } #if defined(_WIN32) // Return a FILETIME from an arbitrary precision number. On both 32-bit and 64-bit Windows // this is a pair of 32-bit values. void getFileTimeFromArb(TaskData *taskData, Handle numHandle, PFILETIME ft) { Handle twoTo16 = taskData->saveVec.push(TAGGED(65536)); Handle twoTo32 = mult_longc(taskData, twoTo16, twoTo16); Handle highPart, lowPart; quotRem(taskData, twoTo32, numHandle, lowPart, highPart); ft->dwLowDateTime = get_C_unsigned(taskData, lowPart->Word()); ft->dwHighDateTime = get_C_unsigned(taskData, highPart->Word()); } #endif /* compare_unsigned is passed LONG integers only */ static int compare_unsigned(PolyWord x, PolyWord y) { #ifdef USE_GMP mp_size_t lx = numLimbs(x); mp_size_t ly = numLimbs(y); if (lx != ly) /* u > v if u longer than v */ { return (lx > ly ? 1 : -1); } return mpn_cmp((mp_limb_t *)x.AsCodePtr(), (mp_limb_t *)y.AsCodePtr(), lx); #else /* First look at the lengths */ POLYUNSIGNED lx = get_length(x); POLYUNSIGNED ly = get_length(y); if (lx != ly) /* u > v if u longer than v */ { return (lx > ly ? 1 : -1); } // Same length - look at the values. */ byte *u = x.AsCodePtr(); byte *v = y.AsCodePtr(); POLYUNSIGNED i = lx; while (i > 0) { i--; if (u[i] != v[i]) { return u[i] > v[i] ? 1 : -1; } } /* Must be equal */ return 0; #endif } int compareLong(PolyWord y, PolyWord x) { // Test if the values are bitwise equal. If either is short // this is the only case where the values could be equal. if (x == y) // Equal return 0; if (x.IsTagged()) { // x is short. if (y.IsTagged()) { // Both short. We've already tested for equality. if (x.UnTagged() < y.UnTagged()) return -1; // Less else return 1; // Greater } // y is not short. Just test the sign. If it's negative // it must be less than any short value and if it's positive // it must be greater. if (OBJ_IS_NEGATIVE(GetLengthWord(y))) return 1; // x is greater else return -1; // x is less } // x is not short if (y.IsTagged()) { // y is short. Just test the sign of x if (OBJ_IS_NEGATIVE(GetLengthWord(x))) return -1; // x is less else return 1; // x is greater } // Must both be long. We may be able to determine the result based purely on the sign bits. if (! OBJ_IS_NEGATIVE(GetLengthWord(x))) /* x is positive */ { if (! OBJ_IS_NEGATIVE(GetLengthWord(y))) /* y also positive */ { return compare_unsigned(x, y); } else /* y negative so x > y */ { return 1; } } else { /* x is negative */ if (OBJ_IS_NEGATIVE(GetLengthWord(y))) /* y also negative */ { return compare_unsigned(y, x); } else /* y positive so x < y */ { return -1; } } } /* compareLong */ /* logical_long. General purpose function for binary logical operations. */ static Handle logical_long(TaskData *taskData, Handle x, Handle y, unsigned(*op)(unsigned, unsigned)) { int signX, signY; #if USE_GMP mp_limb_t x_extend, y_extend; mp_size_t lx, ly; (void)convertToLong(x, &x_extend, &lx, &signX); (void)convertToLong(y, &y_extend, &ly, &signY); lx = lx*sizeof(mp_limb_t); // We want these in bytes ly = ly*sizeof(mp_limb_t); #else byte x_extend[sizeof(PolyWord)], y_extend[sizeof(PolyWord)]; POLYUNSIGNED lx, ly; (void)convertToLong(x, x_extend, &lx, &signX); (void)convertToLong(y, y_extend, &ly, &signY); #endif byte *u; /* byte-pointer for longer number */ byte *v; /* byte-pointer for shorter number */ Handle z; int sign, signU, signV; POLYUNSIGNED lu; /* length of u in bytes */ POLYUNSIGNED lv; /* length of v in bytes */ /* find the longer number */ /* Make ``u'' the longer. */ if (lx < ly) { // Get result vector. There can't be any carry at the end so // we just need to make this as large as the larger number. z = alloc_and_save(taskData, WORDS(ly), F_MUTABLE_BIT|F_BYTE_OBJ); /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(y)) ? (byte*)&y_extend : DEREFBYTEHANDLE(y); lu = ly; v = IS_INT(DEREFWORD(x)) ? (byte*)&x_extend : DEREFBYTEHANDLE(x); lv = lx; signU = signY; signV = signX; } else { /* Get result vector. */ #if USE_GMP // Add one limb z = alloc_and_save(taskData, WORDS(lx+sizeof(mp_limb_t)), F_MUTABLE_BIT|F_BYTE_OBJ); #else // Add one word. Actually we just want one more byte. z = alloc_and_save(taskData, WORDS(lx+sizeof(PolyWord)), F_MUTABLE_BIT|F_BYTE_OBJ); #endif /* now safe to dereference pointers */ u = IS_INT(DEREFWORD(x)) ? (byte*)&x_extend : DEREFBYTEHANDLE(x); lu = lx; v = IS_INT(DEREFWORD(y)) ? (byte*)&y_extend : DEREFBYTEHANDLE(y); lv = ly; signU = signX; signV = signY; } sign = (*op)(signU, signV); /* -1 if negative, 0 if positive. */ { /* do the actual operations */ byte *w = DEREFBYTEHANDLE(z); int borrowU = 1, borrowV = 1, borrowW = 1; POLYUNSIGNED i = 0; /* Do the operations. */ for( ; i < lv; i++) { int wI; /* Have to convert negative values to twos complement. */ if (signU) borrowU += 255 - u[i]; else borrowU = u[i]; if (signV) borrowV += 255 - v[i]; else borrowV = v[i]; wI = (*op)(borrowU, borrowV) & 255; if (sign) { /* Have to convert the result back to twos complement. */ borrowW += 255 - wI; w[i] = borrowW & 255; borrowW >>= 8; } else w[i] = wI; borrowU >>= 8; borrowV >>= 8; } /* At this point the borrow of V should be zero. */ ASSERT(signV == 0 || borrowV == 0); /* Continue with ``u''. */ for( ; i < lu; i++) { int wI; if (signU) borrowU += 255 - u[i]; else borrowU = u[i]; if (signV) borrowV = 255; else borrowV = 0; wI = (*op)(borrowU, borrowV) & 255; if (sign) { /* Have to convert the result back to twos complement. */ borrowW += 255 - wI; w[i] = borrowW & 255; borrowW >>= 8; } else w[i] = wI; borrowU >>= 8; borrowV >>= 8; } /* We should now no longer have any borrows. */ ASSERT(signU == 0 || borrowU == 0); ASSERT(sign == 0 || borrowW == 0); } return make_canonical(taskData, z, sign); } /* logical_long */ static unsigned doAnd(unsigned i, unsigned j) { return i & j; } static unsigned doOr(unsigned i, unsigned j) { return i | j; } static unsigned doXor(unsigned i, unsigned j) { return i ^ j; } Handle and_longc(TaskData *taskData, Handle y, Handle x) { if (IS_INT(DEREFWORD(x)) && IS_INT(DEREFWORD(y))) /* Both short */ { /* There's no problem with overflow so we can just AND together the values. */ POLYSIGNED t = UNTAGGED(DEREFWORD(x)) & UNTAGGED(DEREFWORD(y)); return taskData->saveVec.push(TAGGED(t)); } return logical_long(taskData, x, y, doAnd); } Handle or_longc(TaskData *taskData, Handle y, Handle x) { if (IS_INT(DEREFWORD(x)) && IS_INT(DEREFWORD(y))) /* Both short */ { /* There's no problem with overflow so we can just OR together the values. */ POLYSIGNED t = UNTAGGED(DEREFWORD(x)) | UNTAGGED(DEREFWORD(y)); return taskData->saveVec.push(TAGGED(t)); } return logical_long(taskData, x, y, doOr); } Handle xor_longc(TaskData *taskData, Handle y, Handle x) { if (IS_INT(DEREFWORD(x)) && IS_INT(DEREFWORD(y))) /* Both short */ { /* There's no problem with overflow so we can just XOR together the values. */ POLYSIGNED t = UNTAGGED(DEREFWORD(x)) ^ UNTAGGED(DEREFWORD(y)); return taskData->saveVec.push(TAGGED(t)); } return logical_long(taskData, x, y, doXor); } // Convert a long precision value to floating point double get_arbitrary_precision_as_real(PolyWord x) { if (IS_INT(x)) { POLYSIGNED t = UNTAGGED(x); return (double)t; } double acc = 0; #if USE_GMP mp_limb_t *u = (mp_limb_t *)(x.AsObjPtr()); mp_size_t lx = numLimbs(x); for ( ; lx > 0; lx--) { int ll = sizeof(mp_limb_t); for ( ; ll > 0 ; ll-- ) { acc = acc * 256; } acc = acc + (double)u[lx-1]; } #else byte *u = (byte *)(x.AsObjPtr()); POLYUNSIGNED lx = OBJECT_LENGTH(x)*sizeof(PolyWord); for( ; lx > 0; lx--) { acc = acc * 256 + (double)u[lx-1]; } #endif if (OBJ_IS_NEGATIVE(GetLengthWord(x))) return -acc; else return acc; } /* Arbitrary precision GCD function. This is really included to make use of GMP's GCD function that selects an algorithm based on the length of the arguments. */ #ifdef USE_GMP Handle gcd_arbitrary(TaskData *taskData, Handle x, Handle y) { /* mpn_gcd requires that each argument is odd and its first argument must be no longer than its second. This requires shifting before the call and after the result has been returned. This code is modelled roughly on the high level mpz_gcd call in GMP. */ mp_limb_t x_extend, y_extend; int sign_x, sign_y; // Signs are ignored - the result is always positive. mp_size_t lx, ly; mp_limb_t *longX = convertToLong(x, &x_extend, &lx, &sign_x); mp_limb_t *longY = convertToLong(y, &y_extend, &ly, &sign_y); // Test for zero length and therefore zero argument if (lx == 0) { // GCD(0,y) = abs(y) if (sign_y) return neg_longc(taskData, y); else return y; } if (ly == 0) { // GCD(x,0 = abs(x) if (sign_x) return neg_longc(taskData, x); else return x; } // If one of the arguments is a single limb we can use the special case. // This doesn't require shifting. It also doesn't say that it could // overwrite the arguments. if (lx == 1 || ly == 1) { mp_limb_t g = (lx == 1) ? mpn_gcd_1(longY, ly, *longX) : mpn_gcd_1(longX, lx, *longY); if (g <= MAXTAGGED) return taskData->saveVec.push(TAGGED(g)); // Need to allocate space. Handle r = alloc_and_save(taskData, WORDS(sizeof(mp_limb_t)), F_BYTE_OBJ); *(DEREFLIMBHANDLE(r)) = g; return r; } // Memory for result. This can be up to the shorter of the two. // We rely on this zero the memory because we may not set every word here. Handle r = alloc_and_save(taskData, WORDS((lx < ly ? lx : ly)*sizeof(mp_limb_t)), F_BYTE_OBJ|F_MUTABLE_BIT); // Can now dereference the handles. mp_limb_t *xl = IS_INT(DEREFWORD(x)) ? &x_extend : DEREFLIMBHANDLE(x); mp_limb_t *yl = IS_INT(DEREFWORD(y)) ? &y_extend : DEREFLIMBHANDLE(y); mp_limb_t *rl = DEREFLIMBHANDLE(r); unsigned xZeroLimbs = 0, xZeroBits = 0; // Remove whole limbs of zeros. There must be a word which is non-zero. while (*xl == 0) { xl++; xZeroLimbs++; lx--; } // Count the low-order bits and shift by that amount. mp_limb_t t = *xl; while ((t & 1) == 0) { t = t >> 1; xZeroBits++; } // Copy the non-zero limbs into a temporary, shifting if necessary. mp_limb_t *xC = (mp_limb_t*)alloca(lx * sizeof(mp_limb_t)); if (xZeroBits != 0) { mpn_rshift(xC, xl, lx, xZeroBits); if (xC[lx-1] == 0) lx--; } else memcpy(xC, xl, lx * sizeof(mp_limb_t)); unsigned yZeroLimbs = 0, yZeroBits = 0; while (*yl == 0) { yl++; yZeroLimbs++; ly--; } t = *yl; while ((t & 1) == 0) { t = t >> 1; yZeroBits++; } mp_limb_t *yC = (mp_limb_t*)alloca(ly * sizeof(mp_limb_t)); if (yZeroBits != 0) { mpn_rshift(yC, yl, ly, yZeroBits); if (yC[ly-1] == 0) ly--; } else memcpy(yC, yl, ly * sizeof(mp_limb_t)); // The result length and shift is the smaller of these unsigned rZeroLimbs, rZeroBits; if (xZeroLimbs < yZeroLimbs || (xZeroLimbs == yZeroLimbs && xZeroBits < yZeroBits)) { rZeroLimbs = xZeroLimbs; rZeroBits = xZeroBits; } else { rZeroLimbs = yZeroLimbs; rZeroBits = yZeroBits; } // Now actually compute the GCD if (lx < ly || (lx == ly && xC[lx-1] < yC[ly-1])) lx = mpn_gcd(xC, yC, ly, xC, lx); else lx = mpn_gcd(xC, xC, lx, yC, ly); // Shift the temporary result into the final area. if (rZeroBits != 0) { t = mpn_lshift(rl+rZeroLimbs, xC, lx, rZeroBits); if (t != 0) rl[rZeroLimbs+lx] = t; } else memcpy(rl+rZeroLimbs, xC, lx * sizeof(mp_limb_t)); return make_canonical(taskData, r, false); } #else // Fallback version for when GMP is not defined. static Handle gxd(TaskData *taskData, Handle x, Handle y) { Handle marker = taskData->saveVec.mark(); while (1) { if (DEREFWORD(y) == TAGGED(0)) return x; Handle res = rem_longc(taskData, y, x); PolyWord newY = res->Word(); PolyWord newX = y->Word(); taskData->saveVec.reset(marker); y = taskData->saveVec.push(newY); x = taskData->saveVec.push(newX); } } static Handle absValue(TaskData *taskData, Handle x) { if (IS_INT(DEREFWORD(x))) { if (UNTAGGED(DEREFWORD(x)) < 0) return neg_longc(taskData, x); } else if (OBJ_IS_NEGATIVE(GetLengthWord(DEREFWORD(x)))) return neg_longc(taskData, x); return x; } Handle gcd_arbitrary(TaskData *taskData, Handle x, Handle y) { x = absValue(taskData, x); y = absValue(taskData, y); if (compareLong(y->Word(), x->Word()) < 0) return gxd(taskData, y, x); else return gxd(taskData, x, y); } #endif // This is provided as an adjunct to GCD. Using this saves the RTS // calls necessary for the division and multiplication. Handle lcm_arbitrary(TaskData *taskData, Handle x, Handle y) { Handle g = gcd_arbitrary(taskData, x, y); return mult_longc(taskData, x, div_longc(taskData, g, y)); } POLYUNSIGNED PolyAddArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; if (profileMode == kProfileEmulation) taskData->addProfileCount(1); try { // Could raise an exception if out of memory. result = add_longc(taskData, pushedArg2, pushedArg1); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYUNSIGNED PolySubtractArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; if (profileMode == kProfileEmulation) taskData->addProfileCount(1); try { result = sub_longc(taskData, pushedArg2, pushedArg1); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYUNSIGNED PolyMultiplyArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; if (profileMode == kProfileEmulation) taskData->addProfileCount(1); try { result = mult_longc(taskData, pushedArg2, pushedArg1); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYUNSIGNED PolyDivideArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; if (profileMode == kProfileEmulation) taskData->addProfileCount(1); try { // May raise divide exception result = div_longc(taskData, pushedArg2, pushedArg1); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYUNSIGNED PolyRemainderArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; if (profileMode == kProfileEmulation) taskData->addProfileCount(1); try { result = rem_longc(taskData, pushedArg2, pushedArg1); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // This is the older version that took a container as an argument. POLYUNSIGNED PolyQuotRemArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2, PolyWord arg3) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); // arg3 is an address on the stack. It is not a PolyWord. if (profileMode == kProfileEmulation) taskData->addProfileCount(1); try { // The result handle will almost certainly point into the stack. // This should now be safe within the GC. Handle remHandle, divHandle; quotRem(taskData, pushedArg2, pushedArg1, remHandle, divHandle); arg3.AsObjPtr()->Set(0, divHandle->Word()); arg3.AsObjPtr()->Set(1, remHandle->Word()); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); return 0; // Result is unit } // This is the newer version that returns a pair. It's simpler and works with 32-in-64. POLYUNSIGNED PolyQuotRemArbitraryPair(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; // arg3 is an address on the stack. It is not a PolyWord. if (profileMode == kProfileEmulation) taskData->addProfileCount(1); try { // The result handle will almost certainly point into the stack. // This should now be safe within the GC. Handle remHandle, divHandle; quotRem(taskData, pushedArg2, pushedArg1, remHandle, divHandle); result = alloc_and_save(taskData, 2); result->WordP()->Set(0, divHandle->Word()); result->WordP()->Set(1, remHandle->Word()); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // This can be a fast call. It does not need to allocate or use handles. POLYSIGNED PolyCompareArbitrary(PolyWord arg1, PolyWord arg2) { return TAGGED(compareLong(arg2, arg1)).AsSigned(); } POLYUNSIGNED PolyGCDArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; try { result = gcd_arbitrary(taskData, pushedArg2, pushedArg1); // Generally shouldn't raise an exception but might run out of store. } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYUNSIGNED PolyLCMArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; try { result = lcm_arbitrary(taskData, pushedArg2, pushedArg1); // Generally shouldn't raise an exception but might run out of store. } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // Extract the low order part of an arbitrary precision value as a boxed LargeWord.word // value. If the value is negative it is treated as a twos complement value. // This is used Word.fromLargeInt and LargeWord.fromLargeInt with long-form // arbitrary precision values. POLYUNSIGNED PolyGetLowOrderAsLargeWord(FirstArgument threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); uintptr_t p = 0; if (arg.IsTagged()) p = arg.UnTagged(); else { bool negative = OBJ_IS_NEGATIVE(GetLengthWord(arg)) ? true : false; #ifdef USE_GMP mp_limb_t c = *(mp_limb_t*)arg.AsCodePtr(); p = c; #else POLYUNSIGNED length = get_length(arg); if (length > sizeof(uintptr_t)) length = sizeof(uintptr_t); byte *ptr = arg.AsCodePtr(); while (length--) { p = (p << 8) | ptr[length]; } #endif if (negative) p = 0-p; } Handle result = 0; try { result = Make_sysword(taskData, p); } catch (...) {} // We could run out of memory. taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYUNSIGNED PolyOrArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; try { // Could raise an exception if out of memory. result = or_longc(taskData, pushedArg2, pushedArg1); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYUNSIGNED PolyAndArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; try { // Could raise an exception if out of memory. result = and_longc(taskData, pushedArg2, pushedArg1); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYUNSIGNED PolyXorArbitrary(FirstArgument threadId, PolyWord arg1, PolyWord arg2) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg1 = taskData->saveVec.push(arg1); Handle pushedArg2 = taskData->saveVec.push(arg2); Handle result = 0; try { // Could raise an exception if out of memory. result = xor_longc(taskData, pushedArg2, pushedArg1); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } struct _entrypts arbitraryPrecisionEPT[] = { { "PolyAddArbitrary", (polyRTSFunction)&PolyAddArbitrary}, { "PolySubtractArbitrary", (polyRTSFunction)&PolySubtractArbitrary}, { "PolyMultiplyArbitrary", (polyRTSFunction)&PolyMultiplyArbitrary}, { "PolyDivideArbitrary", (polyRTSFunction)&PolyDivideArbitrary}, { "PolyRemainderArbitrary", (polyRTSFunction)&PolyRemainderArbitrary}, { "PolyQuotRemArbitrary", (polyRTSFunction)&PolyQuotRemArbitrary}, { "PolyQuotRemArbitraryPair", (polyRTSFunction)&PolyQuotRemArbitraryPair }, { "PolyCompareArbitrary", (polyRTSFunction)&PolyCompareArbitrary}, { "PolyGCDArbitrary", (polyRTSFunction)&PolyGCDArbitrary}, { "PolyLCMArbitrary", (polyRTSFunction)&PolyLCMArbitrary}, { "PolyGetLowOrderAsLargeWord", (polyRTSFunction)&PolyGetLowOrderAsLargeWord}, { "PolyOrArbitrary", (polyRTSFunction)&PolyOrArbitrary}, { "PolyAndArbitrary", (polyRTSFunction)&PolyAndArbitrary}, { "PolyXorArbitrary", (polyRTSFunction)&PolyXorArbitrary}, { NULL, NULL} // End of list. }; diff --git a/libpolyml/basicio.cpp b/libpolyml/basicio.cpp index e9d3e070..c5bca275 100644 --- a/libpolyml/basicio.cpp +++ b/libpolyml/basicio.cpp @@ -1,1106 +1,1099 @@ /* Title: Basic IO. Copyright (c) 2000, 2015-2019 David C. J. Matthews Portions of this code are derived from the original stream io package copyright CUTS 1983-2000. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ /* This module replaces the old stream IO based on stdio. It works at a lower level with the buffering being done in ML. Sockets are generally dealt with in network.c but it is convenient to use the same table for them particularly since it simplifies the implementation of "poll". Directory operations are also included in here. DCJM May 2000. */ #ifdef HAVE_CONFIG_H #include "config.h" #elif defined(_WIN32) #include "winconfig.h" #else #error "No configuration file" #endif #ifdef HAVE_FCNTL_H #include #endif #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_STAT_H #include #endif #ifdef HAVE_ASSERT_H #include #define ASSERT(x) assert(x) #else #define ASSERT(x) 0 #endif #ifdef HAVE_ERRNO_H #include #endif #ifdef HAVE_SIGNAL_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_ALLOCA_H #include #endif #ifdef HAVE_IO_H #include #endif #ifdef HAVE_SYS_PARAM_H #include #endif #ifdef HAVE_SYS_IOCTL_H #include #endif #ifdef HAVE_SYS_TIME_H #include #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_POLL_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_SYS_SELECT_H #include #endif #ifdef HAVE_MALLOC_H #include #endif #ifdef HAVE_DIRECT_H #include #endif #ifdef HAVE_STDIO_H #include #endif #include #ifndef INFTIM #define INFTIM (-1) #endif #ifdef HAVE_DIRENT_H # include # define NAMLEN(dirent) strlen((dirent)->d_name) #else # define dirent direct # define NAMLEN(dirent) (dirent)->d_namlen # if HAVE_SYS_NDIR_H # include # endif # if HAVE_SYS_DIR_H # include # endif # if HAVE_NDIR_H # include # endif #endif #include "globals.h" #include "basicio.h" #include "sys.h" #include "gc.h" #include "run_time.h" #include "machine_dep.h" #include "arb.h" #include "processes.h" #include "diagnostics.h" #include "io_internal.h" #include "scanaddrs.h" #include "polystring.h" #include "mpoly.h" #include "save_vec.h" #include "rts_module.h" #include "locking.h" #include "rtsentry.h" #include "timing.h" #define TOOMANYFILES EMFILE #define NOMEMORY ENOMEM #define STREAMCLOSED EBADF #define FILEDOESNOTEXIST ENOENT #define ERRORNUMBER errno #ifndef O_ACCMODE #define O_ACCMODE (O_RDONLY|O_RDWR|O_WRONLY) #endif #define SAVE(x) taskData->saveVec.push(x) #ifdef _MSC_VER // Don't tell me about ISO C++ changes. #pragma warning(disable:4996) #endif extern "C" { POLYEXTERNALSYMBOL POLYUNSIGNED PolyChDir(FirstArgument threadId, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyBasicIOGeneral(FirstArgument threadId, PolyWord code, PolyWord strm, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyPollIODescriptors(FirstArgument threadId, PolyWord streamVec, PolyWord bitVec, PolyWord maxMillisecs); } static bool isAvailable(TaskData *taskData, int ioDesc) { #ifdef __CYGWIN__ static struct timeval poll = {0,1}; #else static struct timeval poll = {0,0}; #endif fd_set read_fds; int selRes; FD_ZERO(&read_fds); FD_SET(ioDesc, &read_fds); /* If there is something there we can return. */ selRes = select(FD_SETSIZE, &read_fds, NULL, NULL, &poll); if (selRes > 0) return true; /* Something waiting. */ else if (selRes < 0 && errno != EINTR) // Maybe another thread closed descr raise_syscall(taskData, "select error", ERRORNUMBER); else return false; } // The strm argument is a volatile word containing the descriptor. // Volatiles are set to zero on entry to indicate a closed descriptor. // Zero is a valid descriptor but -1 is not so we add 1 when storing and // subtract 1 when loading. Handle wrapFileDescriptor(TaskData *taskData, int fd) { return MakeVolatileWord(taskData, fd+1); } // Return a file descriptor or -1 if it is invalid. int getStreamFileDescriptorWithoutCheck(PolyWord strm) { - // Legacy: During the bootstrap we may have old file descriptors for - // the standard streams which are tagged integers. - if (strm.IsTagged()) - return strm.UnTagged(); return *(int*)(strm.AsObjPtr()) -1; } // Most of the time we want to raise an exception if the file descriptor // has been closed although this could be left to the system call. int getStreamFileDescriptor(TaskData *taskData, PolyWord strm) { int descr = getStreamFileDescriptorWithoutCheck(strm); if (descr == -1) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); return descr; } /* Open a file in the required mode. */ static Handle open_file(TaskData *taskData, Handle filename, int mode, int access, int isPosix) { while (true) // Repeat only with certain kinds of errors { TempString cFileName(filename->Word()); // Get file name if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); int stream = open(cFileName, mode, access); if (stream >= 0) { if (! isPosix) { /* Set the close-on-exec flag. We don't set this if we are being called from one of the low level functions in the Posix structure. I assume that if someone is using those functions they know what they're doing and would expect the behaviour to be close to that of the underlying function. */ fcntl(stream, F_SETFD, 1); } return wrapFileDescriptor(taskData, stream); } switch (errno) { case EINTR: // Just try the call. Is it possible to block here indefinitely? continue; default: raise_syscall(taskData, "Cannot open", ERRORNUMBER); /*NOTREACHED*/ return 0; } } } /* Close the stream unless it is stdin or stdout or already closed. */ static Handle close_file(TaskData *taskData, Handle stream) { int descr = getStreamFileDescriptorWithoutCheck(stream->Word()); // Don't close it if it's already closed or any of the standard streams if (descr > 2) { close(descr); *(int*)(stream->WordP()) = 0; // Mark as closed } return Make_fixed_precision(taskData, 0); } static void waitForAvailableInput(TaskData *taskData, Handle stream) { int fd = getStreamFileDescriptor(taskData, stream->Word()); while (!isAvailable(taskData, fd)) { WaitInputFD waiter(fd); processes->ThreadPauseForIO(taskData, &waiter); } } /* Read into an array. */ // We can't combine readArray and readString because we mustn't compute the // destination of the data in readArray until after any GC. static Handle readArray(TaskData *taskData, Handle stream, Handle args, bool/*isText*/) { /* The isText argument is ignored in both Unix and Windows but is provided for future use. Windows remembers the mode used when the file was opened to determine whether to translate CRLF into LF. */ // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); while (1) // Loop if interrupted. { // First test to see if we have input available. // These tests may result in a GC if another thread is running. // First test to see if we have input available. // These tests may result in a GC if another thread is running. waitForAvailableInput(taskData, stream); // We can now try to read without blocking. // Actually there's a race here in the unlikely situation that there // are multiple threads sharing the same low-level reader. They could // both detect that input is available but only one may succeed in // reading without blocking. This doesn't apply where the threads use // the higher-level IO interfaces in ML which have their own mutexes. int fd = getStreamFileDescriptor(taskData, stream->Word()); byte *base = DEREFHANDLE(args)->Get(0).AsObjPtr()->AsBytePtr(); POLYUNSIGNED offset = getPolyUnsigned(taskData, DEREFWORDHANDLE(args)->Get(1)); size_t length = getPolyUnsigned(taskData, DEREFWORDHANDLE(args)->Get(2)); ssize_t haveRead = read(fd, base + offset, length); if (haveRead >= 0) return Make_fixed_precision(taskData, haveRead); // Success. // If it failed because it was interrupted keep trying otherwise it's an error. if (errno != EINTR) raise_syscall(taskData, "Error while reading", ERRORNUMBER); } } /* Return input as a string. We don't actually need both readArray and readString but it's useful to have both to reduce unnecessary garbage. The IO library will construct one from the other but the higher levels choose the appropriate function depending on need. */ static Handle readString(TaskData *taskData, Handle stream, Handle args, bool/*isText*/) { size_t length = getPolyUnsigned(taskData, DEREFWORD(args)); // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); while (1) // Loop if interrupted. { // First test to see if we have input available. // These tests may result in a GC if another thread is running. waitForAvailableInput(taskData, stream); // We can now try to read without blocking. int fd = getStreamFileDescriptor(taskData, stream->Word()); // We previously allocated the buffer on the stack but that caused // problems with multi-threading at least on Mac OS X because of // stack exhaustion. We limit the space to 100k. */ if (length > 102400) length = 102400; byte *buff = (byte*)malloc(length); if (buff == 0) raise_syscall(taskData, "Unable to allocate buffer", NOMEMORY); ssize_t haveRead = read(fd, buff, length); if (haveRead >= 0) { Handle result = SAVE(C_string_to_Poly(taskData, (char*)buff, haveRead)); free(buff); return result; } free(buff); // If it failed because it was interrupted keep trying otherwise it's an error. if (errno != EINTR) raise_syscall(taskData, "Error while reading", ERRORNUMBER); } } static Handle writeArray(TaskData *taskData, Handle stream, Handle args, bool/*isText*/) { /* The isText argument is ignored in both Unix and Windows but is provided for future use. Windows remembers the mode used when the file was opened to determine whether to translate LF into CRLF. */ PolyWord base = DEREFWORDHANDLE(args)->Get(0); POLYUNSIGNED offset = getPolyUnsigned(taskData, DEREFWORDHANDLE(args)->Get(1)); size_t length = getPolyUnsigned(taskData, DEREFWORDHANDLE(args)->Get(2)); int fd = getStreamFileDescriptor(taskData, stream->Word()); /* We don't actually handle cases of blocking on output. */ byte *toWrite = base.AsObjPtr()->AsBytePtr(); ssize_t haveWritten = write(fd, toWrite+offset, length); if (haveWritten < 0) raise_syscall(taskData, "Error while writing", ERRORNUMBER); return Make_fixed_precision(taskData, haveWritten); } // Test whether we can write without blocking. Returns false if it will block, // true if it will not. static bool canOutput(TaskData *taskData, Handle stream) { int fd = getStreamFileDescriptor(taskData, stream->Word()); /* Unix - use "select" to find out if output is possible. */ #ifdef __CYGWIN__ static struct timeval poll = {0,1}; #else static struct timeval poll = {0,0}; #endif fd_set read_fds, write_fds, except_fds; int sel; FD_ZERO(&read_fds); FD_ZERO(&write_fds); FD_ZERO(&except_fds); FD_SET(fd, &write_fds); sel = select(FD_SETSIZE,&read_fds,&write_fds,&except_fds,&poll); if (sel < 0 && errno != EINTR) raise_syscall(taskData, "select failed", ERRORNUMBER); return sel > 0; } static long seekStream(TaskData *taskData, int fd, long pos, int origin) { long lpos = lseek(fd, pos, origin); if (lpos < 0) raise_syscall(taskData, "Position error", ERRORNUMBER); return lpos; } /* Return the number of bytes available on the device. Works only for files since it is meaningless for other devices. */ static Handle bytesAvailable(TaskData *taskData, Handle stream) { int fd = getStreamFileDescriptor(taskData, stream->Word()); /* Remember our original position, seek to the end, then seek back. */ long original = seekStream(taskData, fd, 0L, SEEK_CUR); long endOfStream = seekStream(taskData, fd, 0L, SEEK_END); if (seekStream(taskData, fd, original, SEEK_SET) != original) raise_syscall(taskData, "Position error", ERRORNUMBER); return Make_fixed_precision(taskData, endOfStream-original); } static Handle fileKind(TaskData *taskData, Handle stream) { int fd = getStreamFileDescriptor(taskData, stream->Word()); struct stat statBuff; if (fstat(fd, &statBuff) < 0) raise_syscall(taskData, "Stat failed", ERRORNUMBER); switch (statBuff.st_mode & S_IFMT) { case S_IFIFO: return Make_fixed_precision(taskData, FILEKIND_PIPE); case S_IFCHR: case S_IFBLK: if (isatty(fd)) return Make_fixed_precision(taskData, FILEKIND_TTY); else return Make_fixed_precision(taskData, FILEKIND_DEV); case S_IFDIR: return Make_fixed_precision(taskData, FILEKIND_DIR); case S_IFREG: return Make_fixed_precision(taskData, FILEKIND_FILE); case S_IFLNK: return Make_fixed_precision(taskData, FILEKIND_LINK); case S_IFSOCK: return Make_fixed_precision(taskData, FILEKIND_SKT); default: return Make_fixed_precision(taskData, -1); } } /* Find out what polling options, if any, are allowed on this file descriptor. We assume that polling is allowed on all descriptors, either for reading or writing depending on how the stream was opened. */ Handle pollTest(TaskData *taskData, Handle stream) { // How do we test this? Assume all of them. return Make_fixed_precision(taskData, POLL_BIT_IN|POLL_BIT_OUT|POLL_BIT_PRI); } // Do the polling. Takes a vector of io descriptors, a vector of bits to test // and a time to wait and returns a vector of results. class WaitPoll: public Waiter{ public: WaitPoll(POLYUNSIGNED nDesc, struct pollfd *fds, unsigned maxMillisecs); virtual void Wait(unsigned maxMillisecs); int PollResult(void) { return pollResult; } int PollError(void) { return errorResult; } private: int pollResult; int errorResult; unsigned maxTime; struct pollfd *fdVec; POLYUNSIGNED nDescr; }; WaitPoll::WaitPoll(POLYUNSIGNED nDesc, struct pollfd *fds, unsigned maxMillisecs) { maxTime = maxMillisecs; pollResult = 0; errorResult = 0; nDescr = nDesc; fdVec = fds; } void WaitPoll::Wait(unsigned maxMillisecs) { if (nDescr == 0) pollResult = 0; else { if (maxTime < maxMillisecs) maxMillisecs = maxTime; pollResult = poll(fdVec, nDescr, maxMillisecs); if (pollResult < 0) errorResult = ERRORNUMBER; } } POLYEXTERNALSYMBOL POLYUNSIGNED PolyPollIODescriptors(FirstArgument threadId, PolyWord streamVector, PolyWord bitVector, PolyWord maxMillisecs) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); POLYUNSIGNED maxMilliseconds = maxMillisecs.UnTaggedUnsigned(); Handle result = 0; try { PolyObject *strmVec = streamVector.AsObjPtr(); PolyObject *bitVec = bitVector.AsObjPtr(); POLYUNSIGNED nDesc = strmVec->Length(); ASSERT(nDesc == bitVec->Length()); struct pollfd * fds = 0; if (nDesc > 0) fds = (struct pollfd *)alloca(nDesc * sizeof(struct pollfd)); /* Set up the request vector. */ for (unsigned i = 0; i < nDesc; i++) { fds[i].fd = getStreamFileDescriptor(taskData, strmVec->Get(i)); POLYUNSIGNED bits = UNTAGGED(bitVec->Get(i)); fds[i].events = 0; if (bits & POLL_BIT_IN) fds[i].events |= POLLIN; /* | POLLRDNORM??*/ if (bits & POLL_BIT_OUT) fds[i].events |= POLLOUT; if (bits & POLL_BIT_PRI) fds[i].events |= POLLPRI; fds[i].revents = 0; } // Poll the descriptors. WaitPoll pollWait(nDesc, fds, maxMilliseconds); processes->ThreadPauseForIO(taskData, &pollWait); if (pollWait.PollResult() < 0) raise_syscall(taskData, "poll failed", pollWait.PollError()); // Construct the result vectors. result = alloc_and_save(taskData, nDesc); for (unsigned i = 0; i < nDesc; i++) { int res = 0; if (fds[i].revents & POLLIN) res = POLL_BIT_IN; if (fds[i].revents & POLLOUT) res = POLL_BIT_OUT; if (fds[i].revents & POLLPRI) res = POLL_BIT_PRI; DEREFWORDHANDLE(result)->Set(i, TAGGED(res)); } } catch (KillException &) { processes->ThreadExit(taskData); // TestAnyEvents may test for kill } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // Directory functions. static Handle openDirectory(TaskData *taskData, Handle dirname) { TempString dirName(dirname->Word()); if (dirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); while (1) { DIR *dirp = opendir(dirName); if (dirp != NULL) return MakeVolatileWord(taskData, dirp); switch (errno) { case EINTR: continue; // Just retry the call. default: raise_syscall(taskData, "opendir failed", ERRORNUMBER); } } } /* Return the next entry from the directory, ignoring current and parent arcs ("." and ".." in Windows and Unix) */ Handle readDirectory(TaskData *taskData, Handle stream) { DIR *pDir = *(DIR**)(stream->WordP()); // In a Volatile if (pDir == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); while (1) { struct dirent *dp = readdir(pDir); int len; if (dp == NULL) return taskData->saveVec.push(EmptyString(taskData)); len = NAMLEN(dp); if (!((len == 1 && strncmp(dp->d_name, ".", 1) == 0) || (len == 2 && strncmp(dp->d_name, "..", 2) == 0))) return SAVE(C_string_to_Poly(taskData, dp->d_name, len)); } } Handle rewindDirectory(TaskData *taskData, Handle stream, Handle dirname) { DIR *pDir = *(DIR**)(stream->WordP()); // In a Volatile if (pDir == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); rewinddir(pDir); return Make_fixed_precision(taskData, 0); } static Handle closeDirectory(TaskData *taskData, Handle stream) { DIR *pDir = *(DIR**)(stream->WordP()); // In a SysWord if (pDir != 0) { closedir(pDir); *((DIR**)stream->WordP()) = 0; // Clear this - no longer valid } return Make_fixed_precision(taskData, 0); } /* change_dirc - this is called directly and not via the dispatch function. */ static Handle change_dirc(TaskData *taskData, Handle name) /* Change working directory. */ { TempString cDirName(name->Word()); if (cDirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (chdir(cDirName) != 0) raise_syscall(taskData, "chdir failed", ERRORNUMBER); return SAVE(TAGGED(0)); } // External call POLYUNSIGNED PolyChDir(FirstArgument threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); try { (void)change_dirc(taskData, pushedArg); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); return TAGGED(0).AsUnsigned(); // Result is unit } /* Test for a directory. */ Handle isDir(TaskData *taskData, Handle name) { TempString cDirName(name->Word()); if (cDirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); struct stat fbuff; if (stat(cDirName, &fbuff) != 0) raise_syscall(taskData, "stat failed", ERRORNUMBER); if ((fbuff.st_mode & S_IFMT) == S_IFDIR) return Make_fixed_precision(taskData, 1); else return Make_fixed_precision(taskData, 0); } /* Get absolute canonical path name. */ Handle fullPath(TaskData *taskData, Handle filename) { TempString cFileName; /* Special case of an empty string. */ if (PolyStringLength(filename->Word()) == 0) cFileName = strdup("."); else cFileName = Poly_string_to_C_alloc(filename->Word()); if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); TempCString resBuf(realpath(cFileName, NULL)); if (resBuf == NULL) raise_syscall(taskData, "realpath failed", ERRORNUMBER); /* Some versions of Unix don't check the final component of a file. To be consistent try doing a "stat" of the resulting string to check it exists. */ struct stat fbuff; if (stat(resBuf, &fbuff) != 0) raise_syscall(taskData, "stat failed", ERRORNUMBER); return(SAVE(C_string_to_Poly(taskData, resBuf))); } /* Get file modification time. This returns the value in the time units and from the base date used by timing.c. c.f. filedatec */ Handle modTime(TaskData *taskData, Handle filename) { TempString cFileName(filename->Word()); if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); struct stat fbuff; if (stat(cFileName, &fbuff) != 0) raise_syscall(taskData, "stat failed", ERRORNUMBER); /* Convert to microseconds. */ return Make_arb_from_pair_scaled(taskData, STAT_SECS(&fbuff,m), STAT_USECS(&fbuff,m), 1000000); } /* Get file size. */ Handle fileSize(TaskData *taskData, Handle filename) { TempString cFileName(filename->Word()); if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); struct stat fbuff; if (stat(cFileName, &fbuff) != 0) raise_syscall(taskData, "stat failed", ERRORNUMBER); return Make_arbitrary_precision(taskData, fbuff.st_size); } /* Set file modification and access times. */ Handle setTime(TaskData *taskData, Handle fileName, Handle fileTime) { TempString cFileName(fileName->Word()); if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); struct timeval times[2]; /* We have a value in microseconds. We need to split it into seconds and microseconds. */ Handle hTime = fileTime; Handle hMillion = Make_arbitrary_precision(taskData, 1000000); /* N.B. Arguments to div_longc and rem_longc are in reverse order. */ unsigned secs = get_C_ulong(taskData, DEREFWORD(div_longc(taskData, hMillion, hTime))); unsigned usecs = get_C_ulong(taskData, DEREFWORD(rem_longc(taskData, hMillion, hTime))); times[0].tv_sec = times[1].tv_sec = secs; times[0].tv_usec = times[1].tv_usec = usecs; if (utimes(cFileName, times) != 0) raise_syscall(taskData, "utimes failed", ERRORNUMBER); return Make_fixed_precision(taskData, 0); } /* Rename a file. */ Handle renameFile(TaskData *taskData, Handle oldFileName, Handle newFileName) { TempString oldName(oldFileName->Word()), newName(newFileName->Word()); if (oldName == 0 || newName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (rename(oldName, newName) != 0) raise_syscall(taskData, "rename failed", ERRORNUMBER); return Make_fixed_precision(taskData, 0); } /* Access right requests passed in from ML. */ #define FILE_ACCESS_READ 1 #define FILE_ACCESS_WRITE 2 #define FILE_ACCESS_EXECUTE 4 /* Get access rights to a file. */ Handle fileAccess(TaskData *taskData, Handle name, Handle rights) { TempString fileName(name->Word()); if (fileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); int rts = get_C_int(taskData, DEREFWORD(rights)); int mode = 0; if (rts & FILE_ACCESS_READ) mode |= R_OK; if (rts & FILE_ACCESS_WRITE) mode |= W_OK; if (rts & FILE_ACCESS_EXECUTE) mode |= X_OK; if (mode == 0) mode = F_OK; /* Return true if access is allowed, otherwise false for any other error. */ if (access(fileName, mode) == 0) return Make_fixed_precision(taskData, 1); else return Make_fixed_precision(taskData, 0); } /* IO_dispatchc. Called from assembly code module. */ static Handle IO_dispatch_c(TaskData *taskData, Handle args, Handle strm, Handle code) { unsigned c = get_C_unsigned(taskData, DEREFWORD(code)); switch (c) { case 0: /* Return standard input */ return wrapFileDescriptor(taskData, 0); case 1: /* Return standard output */ return wrapFileDescriptor(taskData, 1); case 2: /* Return standard error */ return wrapFileDescriptor(taskData, 2); case 3: /* Open file for text input. */ case 4: /* Open file for binary input. */ return open_file(taskData, args, O_RDONLY, 0666, 0); case 5: /* Open file for text output. */ case 6: /* Open file for binary output. */ return open_file(taskData, args, O_WRONLY | O_CREAT | O_TRUNC, 0666, 0); case 7: /* Close file */ - // Legacy: During the bootstrap we will have old format references. - if (strm->Word().IsTagged()) - return Make_fixed_precision(taskData, 0); return close_file(taskData, strm); case 8: /* Read text into an array. */ return readArray(taskData, strm, args, true); case 9: /* Read binary into an array. */ return readArray(taskData, strm, args, false); case 10: /* Get text as a string. */ return readString(taskData, strm, args, true); case 11: /* Write from memory into a text file. */ return writeArray(taskData, strm, args, true); case 12: /* Write from memory into a binary file. */ return writeArray(taskData, strm, args, false); case 13: /* Open text file for appending. */ /* The IO library definition leaves it open whether this should use "append mode" or not. */ case 14: /* Open binary file for appending. */ return open_file(taskData, args, O_WRONLY | O_CREAT | O_APPEND, 0666, 0); case 15: /* Return recommended buffer size. */ // This is a guess but 4k seems reasonable. return Make_fixed_precision(taskData, 4096); case 16: /* See if we can get some input. */ { int fd = getStreamFileDescriptor(taskData, strm->Word()); return Make_fixed_precision(taskData, isAvailable(taskData, fd) ? 1 : 0); } case 17: /* Return the number of bytes available. */ return bytesAvailable(taskData, strm); case 18: /* Get position on stream. */ { /* Get the current position in the stream. This is used to test for the availability of random access so it should raise an exception if setFilePos or endFilePos would fail. */ int fd = getStreamFileDescriptor(taskData, strm->Word()); long pos = seekStream(taskData, fd, 0L, SEEK_CUR); return Make_arbitrary_precision(taskData, pos); } case 19: /* Seek to position on stream. */ { long position = (long)get_C_long(taskData, DEREFWORD(args)); int fd = getStreamFileDescriptor(taskData, strm->Word()); (void)seekStream(taskData, fd, position, SEEK_SET); return Make_arbitrary_precision(taskData, 0); } case 20: /* Return position at end of stream. */ { int fd = getStreamFileDescriptor(taskData, strm->Word()); /* Remember our original position, seek to the end, then seek back. */ long original = seekStream(taskData, fd, 0L, SEEK_CUR); long endOfStream = seekStream(taskData, fd, 0L, SEEK_END); if (seekStream(taskData, fd, original, SEEK_SET) != original) raise_syscall(taskData, "Position error", ERRORNUMBER); return Make_arbitrary_precision(taskData, endOfStream); } case 21: /* Get the kind of device underlying the stream. */ return fileKind(taskData, strm); case 22: /* Return the polling options allowed on this descriptor. */ return pollTest(taskData, strm); // case 23: /* Poll the descriptor, waiting forever. */ // return pollDescriptors(taskData, args, 1); // case 24: /* Poll the descriptor, waiting for the time requested. */ // return pollDescriptors(taskData, args, 0); // case 25: /* Poll the descriptor, returning immediately.*/ // return pollDescriptors(taskData, args, 2); case 26: /* Get binary as a vector. */ return readString(taskData, strm, args, false); case 27: /* Block until input is available. */ // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); waitForAvailableInput(taskData, strm); return Make_fixed_precision(taskData, 0); case 28: /* Test whether output is possible. */ return Make_fixed_precision(taskData, canOutput(taskData, strm) ? 1:0); case 29: /* Block until output is possible. */ // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); while (true) { if (canOutput(taskData, strm)) return Make_fixed_precision(taskData, 0); // Use the default waiter for the moment since we don't have // one to test for output. processes->ThreadPauseForIO(taskData, Waiter::defaultWaiter); } /* Functions added for Posix structure. */ case 30: /* Return underlying file descriptor. */ /* This is now also used internally to test for stdIn, stdOut and stdErr. */ { int fd = getStreamFileDescriptor(taskData, strm->Word()); return Make_fixed_precision(taskData, fd); } case 31: /* Make an entry for a given descriptor. */ { int ioDesc = get_C_int(taskData, DEREFWORD(args)); return wrapFileDescriptor(taskData, ioDesc); } /* Directory functions. */ case 50: /* Open a directory. */ return openDirectory(taskData, args); case 51: /* Read a directory entry. */ return readDirectory(taskData, strm); case 52: /* Close the directory */ return closeDirectory(taskData, strm); case 53: /* Rewind the directory. */ return rewindDirectory(taskData, strm, args); case 54: /* Get current working directory. */ { size_t size = 4096; TempString string_buffer((char *)malloc(size * sizeof(char))); if (string_buffer == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); char *cwd; while ((cwd = getcwd(string_buffer, size)) == NULL && errno == ERANGE) { if (size > std::numeric_limits::max() / 2) raise_fail(taskData, "getcwd needs too large a buffer"); size *= 2; char *new_buf = (char *)realloc(string_buffer, size * sizeof(char)); if (new_buf == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); string_buffer = new_buf; } if (cwd == NULL) raise_syscall(taskData, "getcwd failed", ERRORNUMBER); return SAVE(C_string_to_Poly(taskData, cwd)); } case 55: /* Create a new directory. */ { TempString dirName(args->Word()); if (dirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (mkdir(dirName, 0777) != 0) raise_syscall(taskData, "mkdir failed", ERRORNUMBER); return Make_fixed_precision(taskData, 0); } case 56: /* Delete a directory. */ { TempString dirName(args->Word()); if (dirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (rmdir(dirName) != 0) raise_syscall(taskData, "rmdir failed", ERRORNUMBER); return Make_fixed_precision(taskData, 0); } case 57: /* Test for directory. */ return isDir(taskData, args); case 58: /* Test for symbolic link. */ { TempString fileName(args->Word()); if (fileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); struct stat fbuff; if (lstat(fileName, &fbuff) != 0) raise_syscall(taskData, "stat failed", ERRORNUMBER); return Make_fixed_precision(taskData, ((fbuff.st_mode & S_IFMT) == S_IFLNK) ? 1 : 0); } case 59: /* Read a symbolic link. */ { int nLen; TempString linkName(args->Word()); if (linkName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); size_t size = 4096; TempString resBuf((char *)malloc(size * sizeof(char))); if (resBuf == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); // nLen is signed, so cast size to ssize_t to perform signed // comparison, avoiding an infinite loop when nLen is -1. while ((nLen = readlink(linkName, resBuf, size)) >= (ssize_t) size) { size *= 2; if (size > std::numeric_limits::max()) raise_fail(taskData, "readlink needs too large a buffer"); char *newBuf = (char *)realloc(resBuf, size * sizeof(char)); if (newBuf == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); resBuf = newBuf; } if (nLen < 0) raise_syscall(taskData, "readlink failed", ERRORNUMBER); return(SAVE(C_string_to_Poly(taskData, resBuf, nLen))); } case 60: /* Return the full absolute path name. */ return fullPath(taskData, args); case 61: /* Modification time. */ return modTime(taskData, args); case 62: /* File size. */ return fileSize(taskData, args); case 63: /* Set file time. */ return setTime(taskData, strm, args); case 64: /* Delete a file. */ { TempString fileName(args->Word()); if (fileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (unlink(fileName) != 0) raise_syscall(taskData, "unlink failed", ERRORNUMBER); return Make_fixed_precision(taskData, 0); } case 65: /* rename a file. */ return renameFile(taskData, strm, args); case 66: /* Get access rights. */ return fileAccess(taskData, strm, args); case 67: /* Return a temporary file name. */ { const char *template_subdir = "/MLTEMPXXXXXX"; #ifdef P_tmpdir TempString buff((char *)malloc(strlen(P_tmpdir) + strlen(template_subdir) + 1)); if (buff == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); strcpy(buff, P_tmpdir); #else const char *tmpdir = "/tmp"; TempString buff((char *)malloc(strlen(tmpdir) + strlen(template_subdir) + 1)); if (buff == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); strcpy(buff, tmpdir); #endif strcat(buff, template_subdir); #if (defined(HAVE_MKSTEMP) && ! defined(UNICODE)) // mkstemp is present in the Mingw64 headers but only as ANSI not Unicode. // Set the umask to mask out access by anyone else. // mkstemp generally does this anyway. mode_t oldMask = umask(0077); int fd = mkstemp(buff); int wasError = ERRORNUMBER; (void)umask(oldMask); if (fd != -1) close(fd); else raise_syscall(taskData, "mkstemp failed", wasError); #else if (mktemp(buff) == 0) raise_syscall(taskData, "mktemp failed", ERRORNUMBER); int fd = open(buff, O_RDWR | O_CREAT | O_EXCL, 00600); if (fd != -1) close(fd); else raise_syscall(taskData, "Temporary file creation failed", ERRORNUMBER); #endif Handle res = SAVE(C_string_to_Poly(taskData, buff)); return res; } case 68: /* Get the file id. */ { struct stat fbuff; TempString fileName(args->Word()); if (fileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (stat(fileName, &fbuff) != 0) raise_syscall(taskData, "stat failed", ERRORNUMBER); /* Assume that inodes are always non-negative. */ return Make_arbitrary_precision(taskData, fbuff.st_ino); } case 69: // Return an index for a token. It is used in OS.IO.hash. // This is supposed to be well distributed for any 2^n but simply return // the stream number. return Make_fixed_precision(taskData, getStreamFileDescriptor(taskData, strm->Word())); case 70: /* Posix.FileSys.openf - open a file with given mode. */ { Handle name = taskData->saveVec.push(DEREFWORDHANDLE(args)->Get(0)); int mode = get_C_int(taskData, DEREFWORDHANDLE(args)->Get(1)); return open_file(taskData, name, mode, 0666, 1); } case 71: /* Posix.FileSys.createf - create a file with given mode and access. */ { Handle name = taskData->saveVec.push(DEREFWORDHANDLE(args)->Get(0)); int mode = get_C_int(taskData, DEREFWORDHANDLE(args)->Get(1)); int access = get_C_int(taskData, DEREFWORDHANDLE(args)->Get(2)); return open_file(taskData, name, mode|O_CREAT, access, 1); } default: { char msg[100]; sprintf(msg, "Unknown io function: %d", c); raise_exception_string(taskData, EXC_Fail, msg); return 0; } } } // General interface to IO. Ideally the various cases will be made into // separate functions. POLYUNSIGNED PolyBasicIOGeneral(FirstArgument threadId, PolyWord code, PolyWord strm, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedCode = taskData->saveVec.push(code); Handle pushedStrm = taskData->saveVec.push(strm); Handle pushedArg = taskData->saveVec.push(arg); Handle result = 0; try { result = IO_dispatch_c(taskData, pushedArg, pushedStrm, pushedCode); } catch (KillException &) { processes->ThreadExit(taskData); // TestAnyEvents may test for kill } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } struct _entrypts basicIOEPT[] = { { "PolyChDir", (polyRTSFunction)&PolyChDir}, { "PolyBasicIOGeneral", (polyRTSFunction)&PolyBasicIOGeneral}, { "PolyPollIODescriptors", (polyRTSFunction)&PolyPollIODescriptors }, { NULL, NULL} // End of list. }; diff --git a/libpolyml/int_opcodes.h b/libpolyml/int_opcodes.h index af21f87f..b7cf3684 100644 --- a/libpolyml/int_opcodes.h +++ b/libpolyml/int_opcodes.h @@ -1,260 +1,250 @@ /* Title: Definitions for the code-tree instructions. Author: Dave Matthews, Cambridge University Computer Laboratory Copyright (c) 2000 Cambridge University Technical Services Limited Further development Copyright David C.J. Matthews 2015-18. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -// Items marked Legacy are needed for bootstrapping but no longer generated by the compiler. - #define INSTR_enter_int 0x00 #define INSTR_jump8 0x02 #define INSTR_jump8false 0x03 #define INSTR_alloc_ref 0x06 #define INSTR_case16 0x0a #define INSTR_stack_container 0x0b #define INSTR_call_closure 0x0c #define INSTR_return_w 0x0d #define INSTR_pad 0x0e #define INSTR_raise_ex 0x10 #define INSTR_get_store_w 0x11 #define INSTR_local_w 0x13 #define INSTR_indirect_w 0x14 #define INSTR_move_to_vec_w 0x15 #define INSTR_set_stack_val_w 0x17 #define INSTR_reset_w 0x18 #define INSTR_reset_r_w 0x19 #define INSTR_constAddr16 0x1a #define INSTR_const_int_w 0x1b #define INSTR_callFastRRtoR 0x1c #define INSTR_callFastRGtoR 0x1d #define INSTR_jump_back8 0x1e #define INSTR_return_b 0x1f #define INSTR_jump_back16 0x20 #define INSTR_get_store_b 0x21 #define INSTR_local_b 0x22 #define INSTR_indirect_b 0x23 #define INSTR_move_to_vec_b 0x24 #define INSTR_set_stack_val_b 0x25 #define INSTR_reset_b 0x26 #define INSTR_reset_r_b 0x27 #define INSTR_const_int_b 0x28 #define INSTR_local_0 0x29 #define INSTR_local_1 0x2a #define INSTR_local_2 0x2b #define INSTR_local_3 0x2c #define INSTR_local_4 0x2d #define INSTR_local_5 0x2e #define INSTR_local_6 0x2f #define INSTR_local_7 0x30 #define INSTR_local_8 0x31 #define INSTR_local_9 0x32 #define INSTR_local_10 0x33 #define INSTR_local_11 0x34 #define INSTR_indirect_0 0x35 #define INSTR_indirect_1 0x36 #define INSTR_indirect_2 0x37 #define INSTR_indirect_3 0x38 #define INSTR_indirect_4 0x39 #define INSTR_indirect_5 0x3a #define INSTR_const_0 0x3b #define INSTR_const_1 0x3c #define INSTR_const_2 0x3d #define INSTR_const_3 0x3e #define INSTR_const_4 0x3f #define INSTR_const_10 0x40 #define INSTR_return_0 0x41 #define INSTR_return_1 0x42 #define INSTR_return_2 0x43 #define INSTR_return_3 0x44 -#define INSTR_move_to_vec_0 0x45 // Legacy -#define INSTR_move_to_vec_1 0x46 // Legacy -#define INSTR_move_to_vec_2 0x47 // Legacy -#define INSTR_move_to_vec_3 0x48 // Legacy -#define INSTR_move_to_vec_4 0x49 // Legacy -#define INSTR_move_to_vec_5 0x4a // Legacy -#define INSTR_move_to_vec_6 0x4b // Legacy -#define INSTR_move_to_vec_7 0x4c // Legacy #define INSTR_reset_1 0x50 #define INSTR_reset_2 0x51 #define INSTR_get_store_2 0x52 #define INSTR_get_store_3 0x53 #define INSTR_get_store_4 0x54 #define INSTR_tuple_container 0x55 #define INSTR_floatAbs 0x56 #define INSTR_floatNeg 0x57 #define INSTR_fixedIntToFloat 0x58 #define INSTR_floatToReal 0x59 #define INSTR_realToFloat 0x5a #define INSTR_floatEqual 0x5b #define INSTR_floatLess 0x5c #define INSTR_floatLessEq 0x5d #define INSTR_floatGreater 0x5e #define INSTR_floatGreaterEq 0x5f #define INSTR_floatAdd 0x60 #define INSTR_floatSub 0x61 #define INSTR_floatMult 0x62 #define INSTR_floatDiv 0x63 #define INSTR_reset_r_1 0x64 #define INSTR_reset_r_2 0x65 #define INSTR_reset_r_3 0x66 #define INSTR_tuple_w 0x67 #define INSTR_tuple_b 0x68 #define INSTR_tuple_2 0x69 #define INSTR_tuple_3 0x6a #define INSTR_tuple_4 0x6b #define INSTR_lock 0x6c #define INSTR_ldexc 0x6d #define INSTR_realToInt 0x6e #define INSTR_floatToInt 0x6f #define INSTR_callFastFtoF 0x70 #define INSTR_callFastGtoF 0x71 #define INSTR_callFastFFtoF 0x72 #define INSTR_callFastFGtoF 0x73 #define INSTR_push_handler 0x78 #define INSTR_realUnordered 0x79 #define INSTR_floatUnordered 0x7a #define INSTR_tail_b_b 0x7b #define INSTR_tail 0x7c #define INSTR_tail_3_b 0x7d #define INSTR_tail_4_b 0x7e #define INSTR_tail_3_2 0x7f #define INSTR_tail_3_3 0x80 #define INSTR_setHandler8 0x81 #define INSTR_callFastRTS0 0x83 #define INSTR_callFastRTS1 0x84 #define INSTR_callFastRTS2 0x85 #define INSTR_callFastRTS3 0x86 #define INSTR_callFastRTS4 0x87 #define INSTR_callFastRTS5 0x88 #define INSTR_callFullRTS0 0x89 #define INSTR_callFullRTS1 0x8a #define INSTR_callFullRTS2 0x8b #define INSTR_callFullRTS3 0x8c #define INSTR_callFullRTS4 0x8d #define INSTR_callFullRTS5 0x8e #define INSTR_callFastRtoR 0x8f #define INSTR_callFastGtoR 0x90 #define INSTR_notBoolean 0x91 #define INSTR_isTagged 0x92 #define INSTR_cellLength 0x93 #define INSTR_cellFlags 0x94 #define INSTR_clearMutable 0x95 #define INSTR_stringLength 0x96 #define INSTR_atomicIncr 0x97 #define INSTR_atomicDecr 0x98 #define INSTR_atomicReset 0x99 #define INSTR_longWToTagged 0x9a #define INSTR_signedToLongW 0x9b #define INSTR_unsignedToLongW 0x9c #define INSTR_realAbs 0x9d #define INSTR_realNeg 0x9e #define INSTR_fixedIntToReal 0x9f #define INSTR_equalWord 0xa0 #define INSTR_lessSigned 0xa2 #define INSTR_lessUnsigned 0xa3 #define INSTR_lessEqSigned 0xa4 #define INSTR_lessEqUnsigned 0xa5 #define INSTR_greaterSigned 0xa6 #define INSTR_greaterUnsigned 0xa7 #define INSTR_greaterEqSigned 0xa8 #define INSTR_greaterEqUnsigned 0xa9 #define INSTR_fixedAdd 0xaa #define INSTR_fixedSub 0xab #define INSTR_fixedMult 0xac #define INSTR_fixedQuot 0xad #define INSTR_fixedRem 0xae #define INSTR_fixedDiv 0xaf #define INSTR_fixedMod 0xb0 #define INSTR_wordAdd 0xb1 #define INSTR_wordSub 0xb2 #define INSTR_wordMult 0xb3 #define INSTR_wordDiv 0xb4 #define INSTR_wordMod 0xb5 #define INSTR_wordAnd 0xb7 #define INSTR_wordOr 0xb8 #define INSTR_wordXor 0xb9 #define INSTR_wordShiftLeft 0xba #define INSTR_wordShiftRLog 0xbb #define INSTR_wordShiftRArith 0xbc #define INSTR_allocByteMem 0xbd #define INSTR_lgWordEqual 0xbe #define INSTR_lgWordLess 0xc0 #define INSTR_lgWordLessEq 0xc1 #define INSTR_lgWordGreater 0xc2 #define INSTR_lgWordGreaterEq 0xc3 #define INSTR_lgWordAdd 0xc4 #define INSTR_lgWordSub 0xc5 #define INSTR_lgWordMult 0xc6 #define INSTR_lgWordDiv 0xc7 #define INSTR_lgWordMod 0xc8 #define INSTR_lgWordAnd 0xc9 #define INSTR_lgWordOr 0xca #define INSTR_lgWordXor 0xcb #define INSTR_lgWordShiftLeft 0xcc #define INSTR_lgWordShiftRLog 0xcd #define INSTR_lgWordShiftRArith 0xce #define INSTR_realEqual 0xcf #define INSTR_realLess 0xd1 #define INSTR_realLessEq 0xd2 #define INSTR_realGreater 0xd3 #define INSTR_realGreaterEq 0xd4 #define INSTR_realAdd 0xd5 #define INSTR_realSub 0xd6 #define INSTR_realMult 0xd7 #define INSTR_realDiv 0xd8 #define INSTR_getThreadId 0xd9 #define INSTR_allocWordMemory 0xda #define INSTR_loadMLWord 0xdb #define INSTR_loadMLByte 0xdc #define INSTR_loadC8 0xdd #define INSTR_loadC16 0xde #define INSTR_loadC32 0xdf #define INSTR_loadC64 0xe0 #define INSTR_loadCFloat 0xe1 #define INSTR_loadCDouble 0xe2 #define INSTR_storeMLWord 0xe3 #define INSTR_storeMLByte 0xe4 #define INSTR_storeC8 0xe5 #define INSTR_storeC16 0xe6 #define INSTR_storeC32 0xe7 #define INSTR_storeC64 0xe8 #define INSTR_storeCFloat 0xe9 #define INSTR_storeCDouble 0xea #define INSTR_blockMoveWord 0xeb #define INSTR_blockMoveByte 0xec #define INSTR_blockEqualByte 0xed #define INSTR_blockCompareByte 0xee #define INSTR_loadUntagged 0xef #define INSTR_storeUntagged 0xf0 #define INSTR_deleteHandler 0xf1 #define INSTR_jump32 0xf2 #define INSTR_jump32False 0xf3 #define INSTR_constAddr32 0xf4 #define INSTR_setHandler32 0xf5 #define INSTR_case32 0xf6 #define INSTR_jump16 0xf7 #define INSTR_jump16false 0xf8 #define INSTR_setHandler16 0xf9 #define INSTR_constAddr8 0xfa #define INSTR_stackSize8 0xfb #define INSTR_stackSize16 0xfc diff --git a/libpolyml/interpret.cpp b/libpolyml/interpret.cpp index a14fd961..73d230d7 100644 --- a/libpolyml/interpret.cpp +++ b/libpolyml/interpret.cpp @@ -1,2349 +1,2340 @@ /* Title: An interpreter for a compact instruction set. Author: Dave Matthews, Cambridge University Computer Laboratory Copyright (c) 2000-7 Cambridge University Technical Services Limited Further development Copyright David C.J. Matthews 2015-18. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifdef HAVE_CONFIG_H #include "config.h" #elif defined(_WIN32) #include "winconfig.h" #else #error "No configuration file" #endif #ifdef HAVE_STDIO_H #include #endif #ifdef HAVE_ASSERT_H #include #define ASSERT(x) assert(x) #else #define ASSERT(x) 0 #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_FLOAT_H #include #endif #ifdef HAVE_MATH_H #include #endif #include // Currently just for isnan. #include "globals.h" #include "int_opcodes.h" #include "machine_dep.h" #include "sys.h" #include "profiling.h" #include "arb.h" #include "reals.h" #include "processes.h" #include "run_time.h" #include "gc.h" #include "diagnostics.h" #include "polystring.h" #include "save_vec.h" #include "memmgr.h" #include "scanaddrs.h" #if (SIZEOF_VOIDP == 8) #define IS64BITS 1 #endif #define arg1 (pc[0] + pc[1]*256) #define arg2 (pc[2] + pc[3]*256) const PolyWord True = TAGGED(1); const PolyWord False = TAGGED(0); const PolyWord Zero = TAGGED(0); #define CHECKED_REGS 2 #define UNCHECKED_REGS 0 #define EXTRA_STACK 0 // Don't need any extra - signals aren't handled on the Poly stack. /* the amount of ML stack space to reserve for registers, C exception handling etc. The compiler requires us to reserve 2 stack-frames worth (2 * 20 words) plus whatever we require for the register save area. We actually reserve slightly more than this. SPF 3/3/97 */ #define OVERFLOW_STACK_SIZE \ (50 + \ CHECKED_REGS + \ UNCHECKED_REGS + \ EXTRA_STACK) // This duplicates some code in reals.cpp but is now updated. #define DOUBLESIZE (sizeof(double)/sizeof(POLYUNSIGNED)) union realdb { double dble; POLYUNSIGNED puns[DOUBLESIZE]; }; #define LGWORDSIZE (sizeof(uintptr_t) / sizeof(PolyWord)) // We're using float for Real32 so it needs to be 32-bits. // Assume that's true for the moment. #if (SIZEOF_FLOAT != 4) #error "Float is not 32-bits. Please report this" #endif union flt { float fl; int32_t i; }; class IntTaskData: public TaskData { public: IntTaskData(): interrupt_requested(false), overflowPacket(0), dividePacket(0) {} virtual void GarbageCollect(ScanAddress *process); void ScanStackAddress(ScanAddress *process, PolyWord &val, StackSpace *stack); virtual Handle EnterPolyCode(); // Start running ML // Switch to Poly and return with the io function to call. int SwitchToPoly(); virtual void SetException(poly_exn *exc); virtual void InterruptCode(); // AddTimeProfileCount is used in time profiling. virtual bool AddTimeProfileCount(SIGNALCONTEXT *context); virtual void InitStackFrame(TaskData *newTask, Handle proc, Handle arg); // These aren't implemented in the interpreted version. virtual Handle EnterCallbackFunction(Handle func, Handle args) { ASSERT(0); return 0; } // Increment or decrement the first word of the object pointed to by the // mutex argument and return the new value. virtual Handle AtomicIncrement(Handle mutexp); // Set a mutex to one. virtual void AtomicReset(Handle mutexp); // Return the minimum space occupied by the stack. Used when setting a limit. virtual uintptr_t currentStackSpace(void) const { return (this->stack->top - this->taskSp) + OVERFLOW_STACK_SIZE; } virtual void addProfileCount(POLYUNSIGNED words) { add_count(this, taskPc, words); } virtual void CopyStackFrame(StackObject *old_stack, uintptr_t old_length, StackObject *new_stack, uintptr_t new_length); bool interrupt_requested; // Allocate memory on the heap. Returns with the address of the cell. Does not set the // length word or any of the data. PolyObject *allocateMemory(POLYUNSIGNED words, POLYCODEPTR &pc, PolyWord *&sp) { words++; // Add the size of the length word. // N.B. The allocation area may be empty so that both of these are zero. if (this->allocPointer >= this->allocLimit + words) { this->allocPointer -= words; return (PolyObject *)(this->allocPointer+1); } // Insufficient space. SaveInterpreterState(pc, sp); // Find some space to allocate in. Returns a pointer to the newly allocated space. // N.B. This may return zero if the heap is exhausted and it has set this // up for an exception. Generally it allocates by decrementing allocPointer // but if the required memory is large it may allocate in a separate area. PolyWord *space = processes->FindAllocationSpace(this, words, true); LoadInterpreterState(pc, sp); if (space == 0) return 0; return (PolyObject *)(space+1); } // Put a real result in a "box" PolyObject *boxDouble(double d, POLYCODEPTR &pc, PolyWord *&sp) { PolyObject *mem = this->allocateMemory(DOUBLESIZE, pc, sp); if (mem == 0) return 0; mem->SetLengthWord(DOUBLESIZE, F_BYTE_OBJ); union realdb uniondb; uniondb.dble = d; // Copy the words. Depending on the word length this may copy one or more words. for (unsigned i = 0; i < DOUBLESIZE; i++) mem->Set(i, PolyWord::FromUnsigned(uniondb.puns[i])); return mem; } // Extract a double value from a box. double unboxDouble(PolyWord p) { union realdb uniondb; for (unsigned i = 0; i < DOUBLESIZE; i++) uniondb.puns[i] = p.AsObjPtr()->Get(i).AsUnsigned(); return uniondb.dble; } // Largely copied from reals.cpp #if (SIZEOF_FLOAT < SIZEOF_POLYWORD) // Typically for 64-bit mode. Use a tagged representation. // The code-generator on the X86/64 assumes the float is in the // high order word. #define FLT_SHIFT ((SIZEOF_POLYWORD-SIZEOF_FLOAT)*8) float unboxFloat(PolyWord p) { union flt argx; argx.i = p.AsSigned() >> FLT_SHIFT; return argx.fl; } PolyObject *boxFloat(float f, POLYCODEPTR &pc, PolyWord *&sp) { union flt argx; argx.fl = f; PolyWord p = PolyWord::FromSigned(((POLYSIGNED)argx.i << FLT_SHIFT) + 1); return p.AsObjPtr(); // Temporarily cast it to this even though it isn't really } #else // Typically for 32-bit mode. Use a boxed representation. PolyObject *boxFloat(float f, POLYCODEPTR &pc, PolyWord *&sp) { PolyObject *mem = this->allocateMemory(1, pc, sp); if (mem == 0) return 0; mem->SetLengthWord(1, F_BYTE_OBJ); union flt argx; argx.fl = f; mem->Set(0, PolyWord::FromSigned(argx.i)); return mem; } // Extract a double value from a box. float unboxFloat(PolyWord p) { union flt argx; argx.i = (int32_t)p.AsObjPtr()->Get(0).AsSigned(); return argx.fl; } #endif // Update the copies in the task object void SaveInterpreterState(POLYCODEPTR pc, PolyWord *sp) { taskPc = pc; taskSp = sp; } // Update the local state void LoadInterpreterState(POLYCODEPTR &pc, PolyWord *&sp) { pc = taskPc; sp = taskSp; } POLYCODEPTR taskPc; /* Program counter. */ PolyWord *taskSp; /* Stack pointer. */ PolyWord *hr; PolyWord exception_arg; bool raiseException; PolyWord *sl; /* Stack limit register. */ PolyObject *overflowPacket, *dividePacket; }; // This lock is used to synchronise all atomic operations. // It is not needed in the X86 version because that can use a global // memory lock. static PLock mutexLock; // Special value for return address. #define SPECIAL_PC_END_THREAD TAGGED(1) class Interpreter : public MachineDependent { public: Interpreter() {} // Create a task data object. virtual TaskData *CreateTaskData(void) { return new IntTaskData(); } virtual Architectures MachineArchitecture(void) { return MA_Interpreted; } }; void IntTaskData::InitStackFrame(TaskData *parentTask, Handle proc, Handle arg) /* Initialise stack frame. */ { StackSpace *space = this->stack; StackObject *stack = (StackObject *)space->stack(); PolyObject *closure = DEREFWORDHANDLE(proc); uintptr_t stack_size = space->spaceSize(); this->taskPc = closure->Get(0).AsCodePtr(); this->exception_arg = TAGGED(0); /* Used for exception argument. */ this->taskSp = (PolyWord*)stack + stack_size; this->raiseException = false; /* Set up exception handler */ /* No previous handler so point it at itself. */ this->taskSp--; *(this->taskSp) = PolyWord::FromStackAddr(this->taskSp); *(--this->taskSp) = SPECIAL_PC_END_THREAD; /* Default return address. */ this->hr = this->taskSp; /* If this function takes an argument store it on the stack. */ if (arg != 0) *(--this->taskSp) = DEREFWORD(arg); *(--this->taskSp) = SPECIAL_PC_END_THREAD; /* Return address. */ *(--this->taskSp) = closure; /* Closure address */ // Make packets for exceptions. overflowPacket = makeExceptionPacket(parentTask, EXC_overflow); dividePacket = makeExceptionPacket(parentTask, EXC_divide); } extern "C" { typedef POLYUNSIGNED(*callFastRts0)(); typedef POLYUNSIGNED(*callFastRts1)(intptr_t); typedef POLYUNSIGNED(*callFastRts2)(intptr_t, intptr_t); typedef POLYUNSIGNED(*callFastRts3)(intptr_t, intptr_t, intptr_t); typedef POLYUNSIGNED(*callFastRts4)(intptr_t, intptr_t, intptr_t, intptr_t); typedef POLYUNSIGNED(*callFastRts5)(intptr_t, intptr_t, intptr_t, intptr_t, intptr_t); typedef POLYUNSIGNED(*callFullRts0)(PolyObject *); typedef POLYUNSIGNED(*callFullRts1)(PolyObject *, intptr_t); typedef POLYUNSIGNED(*callFullRts2)(PolyObject *, intptr_t, intptr_t); typedef POLYUNSIGNED(*callFullRts3)(PolyObject *, intptr_t, intptr_t, intptr_t); typedef double (*callRTSRtoR) (double); typedef double (*callRTSRRtoR) (double, double); typedef double (*callRTSGtoR) (intptr_t); typedef double (*callRTSRGtoR) (double, intptr_t); typedef float(*callRTSFtoF) (float); typedef float(*callRTSFFtoF) (float, float); typedef float(*callRTSGtoF) (intptr_t); typedef float(*callRTSFGtoF) (float, intptr_t); } void IntTaskData::InterruptCode() /* Stop the Poly code at a suitable place. */ /* We may get an asynchronous interrupt at any time. */ { IntTaskData *itd = (IntTaskData *)this; itd->interrupt_requested = true; } void IntTaskData::SetException(poly_exn *exc) /* Set up the stack of a process to raise an exception. */ { this->raiseException = true; *(--this->taskSp) = (PolyWord)exc; /* push exception data */ } int IntTaskData::SwitchToPoly() /* (Re)-enter the Poly code from C. */ { // These are temporary values used where one instruction jumps to // common code. POLYUNSIGNED tailCount; PolyWord *tailPtr; POLYUNSIGNED returnCount; POLYUNSIGNED storeWords; POLYUNSIGNED stackCheck; // Local values. These are copies of member variables but are used so frequently that // it is important that access should be fast. POLYCODEPTR pc; PolyWord *sp; double dv; LoadInterpreterState(pc, sp); sl = (PolyWord*)this->stack->stack() + OVERFLOW_STACK_SIZE; // We may have taken an interrupt which has set an exception. if (this->raiseException) goto RAISE_EXCEPTION; for(;;){ /* Each instruction */ // char buff[1000]; // sprintf(buff, "addr = %p sp=%p instr=%02x *sp=%p\n", pc, sp, *pc, (*sp).AsStackAddr()); // OutputDebugStringA(buff); switch(*pc++) { case INSTR_enter_int: pc++; /* Skip the argument. */ break; case INSTR_jump8false: { PolyWord u = *sp++; /* Pop argument */ if (u == True) { pc += 1; break; } /* else - false - take the jump */ } case INSTR_jump8: pc += *pc + 1; break; case INSTR_jump16false: { PolyWord u = *sp++; /* Pop argument */ if (u == True) { pc += 2; break; } /* else - false - take the jump */ } case INSTR_jump16: pc += arg1 + 2; break; case INSTR_jump32False: { PolyWord u = *sp++; /* Pop argument */ if (u == True) { pc += 4; break; } /* else - false - take the jump */ } case INSTR_jump32: { // This is a 32-bit signed quantity on both 64-bits and 32-bits. POLYSIGNED offset = pc[3] & 0x80 ? -1 : 0; offset = (offset << 8) | pc[3]; offset = (offset << 8) | pc[2]; offset = (offset << 8) | pc[1]; offset = (offset << 8) | pc[0]; pc += offset + 4; break; } case INSTR_push_handler: /* Save the old handler value. */ *(--sp) = PolyWord::FromStackAddr(this->hr); /* Push old handler */ break; case INSTR_setHandler8: /* Set up a handler */ *(--sp) = PolyWord::FromCodePtr(pc + *pc + 1); /* Address of handler */ this->hr = sp; pc += 1; break; case INSTR_setHandler16: /* Set up a handler */ *(--sp) = PolyWord::FromCodePtr(pc + arg1 + 2); /* Address of handler */ this->hr = sp; pc += 2; break; case INSTR_setHandler32: /* Set up a handler */ { POLYUNSIGNED offset = pc[0] + (pc[1] << 8) + (pc[2] << 16) + (pc[3] << 24); *(--sp) = PolyWord::FromCodePtr(pc + offset + 4); /* Address of handler */ this->hr = sp; pc += 4; break; } case INSTR_deleteHandler: /* Delete handler retaining the result. */ { PolyWord u = *sp++; sp = this->hr; sp++; // Remove handler entry point this->hr = (*sp).AsStackAddr(); // Restore old handler *sp = u; // Put back the result break; } case INSTR_case16: { // arg1 is the largest value that is in the range POLYSIGNED u = UNTAGGED(*sp++); /* Get the value */ if (u > arg1 || u < 0) pc += (arg1+2)*2; /* Out of range */ else { pc += 2; pc += /* Index */pc[u*2]+pc[u*2 + 1]*256; } break; } case INSTR_case32: { // arg1 is the number of cases i.e. one more than the largest value // This is followed by that number of 32-bit offsets. // If the value is out of range the default case is immediately after the table. POLYSIGNED u = UNTAGGED(*sp++); /* Get the value */ if (u >= arg1 || u < 0) pc += 2 + arg1 * 4; /* Out of range */ else { pc += 2; pc += /* Index */pc[u*4] + (pc[u*4+1] << 8) + (pc[u*4+2] << 16) + (pc[u*4+3] << 24); } break; } case INSTR_tail_3_b: tailCount = 3; tailPtr = sp + tailCount; sp = tailPtr + *pc; goto TAIL_CALL; case INSTR_tail_3_2: tailCount = 3; tailPtr = sp + tailCount; sp = tailPtr + 2; goto TAIL_CALL; case INSTR_tail_3_3: tailCount = 3; tailPtr = sp + tailCount; sp = tailPtr + 3; goto TAIL_CALL; case INSTR_tail_4_b: tailCount = 4; tailPtr = sp + tailCount; sp = tailPtr + *pc; goto TAIL_CALL; case INSTR_tail_b_b: tailCount = *pc; tailPtr = sp + tailCount; sp = tailPtr + pc[1]; goto TAIL_CALL; case INSTR_tail: /* Tail recursive call. */ /* Move items up the stack. */ /* There may be an overlap if the function we are calling has more args than this one. */ tailCount = arg1; tailPtr = sp + tailCount; sp = tailPtr + arg2; TAIL_CALL: /* For general case. */ if (tailCount < 2) Crash("Invalid argument\n"); for (; tailCount > 0; tailCount--) *(--sp) = *(--tailPtr); pc = (*sp++).AsCodePtr(); /* Pop the original return address. */ /* And drop through. */ case INSTR_call_closure: /* Closure call. */ { - PolyObject *closure = (*sp).AsObjPtr(); POLYCODEPTR newPc = (*sp).AsObjPtr()->Get(0).AsCodePtr(); sp--; *sp = sp[1]; /* Move closure up. */ sp[1] = PolyWord::FromCodePtr(pc); /* Save return address. */ pc = newPc; /* Get entry point. */ this->taskPc = pc; // Update in case we're profiling break; } case INSTR_return_w: returnCount = arg1; /* Get no. of args to remove. */ RETURN: /* Common code for return. */ { PolyWord result = *sp++; /* Result */ sp++; /* Remove the link/closure */ pc = (*sp++).AsCodePtr(); /* Return address */ sp += returnCount; /* Add on number of args. */ if (pc == SPECIAL_PC_END_THREAD.AsCodePtr()) exitThread(this); // This thread is exiting. *(--sp) = result; /* Result */ this->taskPc = pc; // Update in case we're profiling } break; case INSTR_return_b: returnCount = *pc; goto RETURN; case INSTR_return_0: returnCount = 0; goto RETURN; case INSTR_return_1: returnCount = 1; goto RETURN; case INSTR_return_2: returnCount = 2; goto RETURN; case INSTR_return_3: returnCount = 3; goto RETURN; case INSTR_stackSize8: stackCheck = *pc++; goto STACKCHECK; case INSTR_stackSize16: { stackCheck = arg1; pc += 2; STACKCHECK: // Check there is space on the stack if (sp - stackCheck < sl) { uintptr_t min_size = (this->stack->top - (PolyWord*)sp) + OVERFLOW_STACK_SIZE + stackCheck; SaveInterpreterState(pc, sp); CheckAndGrowStack(this, min_size); LoadInterpreterState(pc, sp); sl = (PolyWord*)this->stack->stack() + OVERFLOW_STACK_SIZE; } // Also check for interrupts if (this->interrupt_requested) { // Check for interrupts this->interrupt_requested = false; SaveInterpreterState(pc, sp); return -1; } break; } case INSTR_pad: /* No-op */ break; case INSTR_raise_ex: { RAISE_EXCEPTION: this->raiseException = false; PolyException *exn = (PolyException*)((*sp).AsObjPtr()); this->exception_arg = exn; /* Get exception data */ sp = this->hr; if (*sp == SPECIAL_PC_END_THREAD) exitThread(this); // Default handler for thread. pc = (*sp++).AsCodePtr(); this->hr = (*sp++).AsStackAddr(); break; } case INSTR_get_store_w: // Get_store is now only used for mutually recursive closures. It allocates mutable store // initialised to zero. { storeWords = arg1; pc += 2; GET_STORE: PolyObject *p = this->allocateMemory(storeWords, pc, sp); if (p == 0) goto RAISE_EXCEPTION; p->SetLengthWord(storeWords, F_MUTABLE_BIT); for(; storeWords > 0; ) p->Set(--storeWords, TAGGED(0)); /* Must initialise store! */ *(--sp) = (PolyWord)p; break; } case INSTR_get_store_2: storeWords = 2; goto GET_STORE; case INSTR_get_store_3: storeWords = 3; goto GET_STORE; case INSTR_get_store_4: storeWords = 4; goto GET_STORE; case INSTR_get_store_b: storeWords = *pc; pc++; goto GET_STORE; case INSTR_tuple_w: { storeWords = arg1; pc += 2; TUPLE: /* Common code for tupling. */ PolyObject *p = this->allocateMemory(storeWords, pc, sp); if (p == 0) goto RAISE_EXCEPTION; // Exception p->SetLengthWord(storeWords, 0); for(; storeWords > 0; ) p->Set(--storeWords, *sp++); *(--sp) = (PolyWord)p; break; } case INSTR_tuple_2: storeWords = 2; goto TUPLE; case INSTR_tuple_3: storeWords = 3; goto TUPLE; case INSTR_tuple_4: storeWords = 4; goto TUPLE; case INSTR_tuple_b: storeWords = *pc; pc++; goto TUPLE; case INSTR_local_w: { PolyWord u = sp[arg1]; *(--sp) = u; pc += 2; break; } case INSTR_indirect_w: *sp = (*sp).AsObjPtr()->Get(arg1); pc += 2; break; case INSTR_move_to_vec_w: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(arg1, u); pc += 2; break; } case INSTR_set_stack_val_w: { PolyWord u = *sp++; sp[arg1-1] = u; pc += 2; break; } case INSTR_reset_w: sp += arg1; pc += 2; break; case INSTR_reset_r_w: { PolyWord u = *sp; sp += arg1; *sp = u; pc += 2; break; } case INSTR_constAddr8: *(--sp) = *(PolyWord*)(pc + pc[0] + 1); pc += 1; break; case INSTR_constAddr16: *(--sp) = *(PolyWord*)(pc + arg1 + 2); pc += 2; break; case INSTR_constAddr32: { POLYUNSIGNED offset = pc[0] + (pc[1] << 8) + (pc[2] << 16) + (pc[3] << 24); *(--sp) = *(PolyWord*)(pc + offset + 4); pc += 4; break; } case INSTR_const_int_w: *(--sp) = TAGGED(arg1); pc += 2; break; case INSTR_jump_back8: pc -= *pc + 1; if (this->interrupt_requested) { // Check for interrupt in case we're in a loop this->interrupt_requested = false; SaveInterpreterState(pc, sp); return -1; } break; case INSTR_jump_back16: pc -= arg1 + 1; if (this->interrupt_requested) { // Check for interrupt in case we're in a loop this->interrupt_requested = false; SaveInterpreterState(pc, sp); return -1; } break; case INSTR_lock: { PolyObject *obj = (*sp).AsObjPtr(); obj->SetLengthWord(obj->LengthWord() & ~_OBJ_MUTABLE_BIT); break; } case INSTR_ldexc: *(--sp) = this->exception_arg; break; case INSTR_local_b: { PolyWord u = sp[*pc]; *(--sp) = u; pc += 1; break; } case INSTR_indirect_b: *sp = (*sp).AsObjPtr()->Get(*pc); pc += 1; break; case INSTR_move_to_vec_b: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(*pc, u); pc += 1; break; } case INSTR_set_stack_val_b: { PolyWord u = *sp++; sp[*pc-1] = u; pc += 1; break; } case INSTR_reset_b: sp += *pc; pc += 1; break; case INSTR_reset_r_b: { PolyWord u = *sp; sp += *pc; *sp = u; pc += 1; break; } case INSTR_const_int_b: *(--sp) = TAGGED(*pc); pc += 1; break; case INSTR_local_0: { PolyWord u = sp[0]; *(--sp) = u; break; } case INSTR_local_1: { PolyWord u = sp[1]; *(--sp) = u; break; } case INSTR_local_2: { PolyWord u = sp[2]; *(--sp) = u; break; } case INSTR_local_3: { PolyWord u = sp[3]; *(--sp) = u; break; } case INSTR_local_4: { PolyWord u = sp[4]; *(--sp) = u; break; } case INSTR_local_5: { PolyWord u = sp[5]; *(--sp) = u; break; } case INSTR_local_6: { PolyWord u = sp[6]; *(--sp) = u; break; } case INSTR_local_7: { PolyWord u = sp[7]; *(--sp) = u; break; } case INSTR_local_8: { PolyWord u = sp[8]; *(--sp) = u; break; } case INSTR_local_9: { PolyWord u = sp[9]; *(--sp) = u; break; } case INSTR_local_10: { PolyWord u = sp[10]; *(--sp) = u; break; } case INSTR_local_11: { PolyWord u = sp[11]; *(--sp) = u; break; } case INSTR_indirect_0: *sp = (*sp).AsObjPtr()->Get(0); break; case INSTR_indirect_1: *sp = (*sp).AsObjPtr()->Get(1); break; case INSTR_indirect_2: *sp = (*sp).AsObjPtr()->Get(2); break; case INSTR_indirect_3: *sp = (*sp).AsObjPtr()->Get(3); break; case INSTR_indirect_4: *sp = (*sp).AsObjPtr()->Get(4); break; case INSTR_indirect_5: *sp = (*sp).AsObjPtr()->Get(5); break; case INSTR_const_0: *(--sp) = Zero; break; case INSTR_const_1: *(--sp) = TAGGED(1); break; case INSTR_const_2: *(--sp) = TAGGED(2); break; case INSTR_const_3: *(--sp) = TAGGED(3); break; case INSTR_const_4: *(--sp) = TAGGED(4); break; case INSTR_const_10: *(--sp) = TAGGED(10); break; - // Move-to-vec is now only used for closures. - case INSTR_move_to_vec_0: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(0, u); break; } - case INSTR_move_to_vec_1: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(1, u); break; } - case INSTR_move_to_vec_2: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(2, u); break; } - case INSTR_move_to_vec_3: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(3, u); break; } - case INSTR_move_to_vec_4: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(4, u); break; } - case INSTR_move_to_vec_5: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(5, u); break; } - case INSTR_move_to_vec_6: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(6, u); break; } - case INSTR_move_to_vec_7: { PolyWord u = *sp++; (*sp).AsObjPtr()->Set(7, u); break; } - case INSTR_reset_r_1: { PolyWord u = *sp; sp += 1; *sp = u; break; } case INSTR_reset_r_2: { PolyWord u = *sp; sp += 2; *sp = u; break; } case INSTR_reset_r_3: { PolyWord u = *sp; sp += 3; *sp = u; break; } case INSTR_reset_1: sp += 1; break; case INSTR_reset_2: sp += 2; break; case INSTR_stack_container: { POLYUNSIGNED words = arg1; pc += 2; while (words-- > 0) *(--sp) = Zero; sp--; *sp = PolyWord::FromStackAddr(sp + 1); break; } case INSTR_tuple_container: /* Create a tuple from a container. */ { storeWords = arg1; PolyObject *t = this->allocateMemory(storeWords, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(storeWords, 0); for(; storeWords > 0; ) { storeWords--; t->Set(storeWords, (*sp).AsObjPtr()->Get(storeWords)); } *sp = t; pc += 2; break; } case INSTR_callFastRTS0: { callFastRts0 doCall = *(callFastRts0*)(*sp++).AsObjPtr(); POLYUNSIGNED result = doCall(); *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFastRTS1: { callFastRts1 doCall = *(callFastRts1*)(*sp++).AsObjPtr(); intptr_t rtsArg1 = (*sp++).AsSigned(); POLYUNSIGNED result = doCall(rtsArg1); *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFastRTS2: { callFastRts2 doCall = *(callFastRts2*)(*sp++).AsObjPtr(); intptr_t rtsArg2 = (*sp++).AsSigned(); // Pop off the args, last arg first. intptr_t rtsArg1 = (*sp++).AsSigned(); POLYUNSIGNED result = doCall(rtsArg1, rtsArg2); *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFastRTS3: { callFastRts3 doCall = *(callFastRts3*)(*sp++).AsObjPtr(); intptr_t rtsArg3 = (*sp++).AsSigned(); // Pop off the args, last arg first. intptr_t rtsArg2 = (*sp++).AsSigned(); intptr_t rtsArg1 = (*sp++).AsSigned(); POLYUNSIGNED result = doCall(rtsArg1, rtsArg2, rtsArg3); *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFastRTS4: { callFastRts4 doCall = *(callFastRts4*)(*sp++).AsObjPtr(); intptr_t rtsArg4 = (*sp++).AsSigned(); // Pop off the args, last arg first. intptr_t rtsArg3 = (*sp++).AsSigned(); intptr_t rtsArg2 = (*sp++).AsSigned(); intptr_t rtsArg1 = (*sp++).AsSigned(); POLYUNSIGNED result = doCall(rtsArg1, rtsArg2, rtsArg3, rtsArg4); *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFastRTS5: { callFastRts5 doCall = *(callFastRts5*)(*sp++).AsObjPtr(); intptr_t rtsArg5 = (*sp++).AsSigned(); // Pop off the args, last arg first. intptr_t rtsArg4 = (*sp++).AsSigned(); intptr_t rtsArg3 = (*sp++).AsSigned(); intptr_t rtsArg2 = (*sp++).AsSigned(); intptr_t rtsArg1 = (*sp++).AsSigned(); POLYUNSIGNED result = doCall(rtsArg1, rtsArg2, rtsArg3, rtsArg4, rtsArg5); *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFullRTS0: { callFullRts0 doCall = *(callFullRts0*)(*sp++).AsObjPtr(); this->raiseException = false; SaveInterpreterState(pc, sp); POLYUNSIGNED result = doCall(this->threadObject); LoadInterpreterState(pc, sp); // If this raised an exception if (this->raiseException) goto RAISE_EXCEPTION; *(--sp)= PolyWord::FromUnsigned(result); break; } case INSTR_callFullRTS1: { callFullRts1 doCall = *(callFullRts1*)(*sp++).AsObjPtr(); intptr_t rtsArg1 = (*sp++).AsSigned(); this->raiseException = false; SaveInterpreterState(pc, sp); POLYUNSIGNED result = doCall(this->threadObject, rtsArg1); LoadInterpreterState(pc, sp); // If this raised an exception if (this->raiseException) goto RAISE_EXCEPTION; *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFullRTS2: { callFullRts2 doCall = *(callFullRts2*)(*sp++).AsObjPtr(); intptr_t rtsArg2 = (*sp++).AsSigned(); // Pop off the args, last arg first. intptr_t rtsArg1 = (*sp++).AsSigned(); this->raiseException = false; SaveInterpreterState(pc, sp); POLYUNSIGNED result = doCall(this->threadObject, rtsArg1, rtsArg2); LoadInterpreterState(pc, sp); // If this raised an exception if (this->raiseException) goto RAISE_EXCEPTION; *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFullRTS3: { callFullRts3 doCall = *(callFullRts3*)(*sp++).AsObjPtr(); intptr_t rtsArg3 = (*sp++).AsSigned(); // Pop off the args, last arg first. intptr_t rtsArg2 = (*sp++).AsSigned(); intptr_t rtsArg1 = (*sp++).AsSigned(); this->raiseException = false; SaveInterpreterState(pc, sp); POLYUNSIGNED result = doCall(this->threadObject, rtsArg1, rtsArg2, rtsArg3); LoadInterpreterState(pc, sp); // If this raised an exception if (this->raiseException) goto RAISE_EXCEPTION; *(--sp) = PolyWord::FromUnsigned(result); break; } case INSTR_callFastRtoR: { // Floating point call. The call itself does not allocate but we // need to put the result into a "box". callRTSRtoR doCall = *(callRTSRtoR*)(*sp++).AsObjPtr(); PolyWord rtsArg1 = *sp++; double argument = unboxDouble(rtsArg1); // Allocate memory for the result. double result = doCall(argument); PolyObject *t = boxDouble(result, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *(--sp) = (PolyWord)t; break; } case INSTR_callFastRRtoR: { // Floating point call. PolyWord rtsCall = (*sp++).AsObjPtr()->Get(0); // Value holds address. PolyWord rtsArg2 = *sp++; PolyWord rtsArg1 = *sp++; callRTSRRtoR doCall = (callRTSRRtoR)rtsCall.AsCodePtr(); double argument1 = unboxDouble(rtsArg1); double argument2 = unboxDouble(rtsArg2); // Allocate memory for the result. double result = doCall(argument1, argument2); PolyObject *t = boxDouble(result, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *(--sp) = t; break; } case INSTR_callFastGtoR: { // Call that takes a POLYUNSIGNED argument and returns a double. callRTSGtoR doCall = *(callRTSGtoR*)(*sp++).AsObjPtr(); intptr_t rtsArg1 = (*sp++).AsSigned(); // Allocate memory for the result. double result = doCall(rtsArg1); PolyObject *t = boxDouble(result, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *(--sp) = (PolyWord)t; break; } case INSTR_callFastRGtoR: { // Call that takes a POLYUNSIGNED argument and returns a double. PolyWord rtsCall = (*sp++).AsObjPtr()->Get(0); // Value holds address. intptr_t rtsArg2 = (*sp++).AsSigned(); PolyWord rtsArg1 = *sp++; callRTSRGtoR doCall = (callRTSRGtoR)rtsCall.AsCodePtr(); double argument1 = unboxDouble(rtsArg1); // Allocate memory for the result. double result = doCall(argument1, rtsArg2); PolyObject *t = boxDouble(result, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *(--sp) = t; break; } case INSTR_callFastFtoF: { // Floating point call. The call itself does not allocate but we // need to put the result into a "box". PolyWord rtsCall = (*sp++).AsObjPtr()->Get(0); // Value holds address. PolyWord rtsArg1 = *sp++; callRTSFtoF doCall = (callRTSFtoF)rtsCall.AsCodePtr(); float argument = unboxFloat(rtsArg1); // Allocate memory for the result. float result = doCall(argument); PolyObject *t = boxFloat(result, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *(--sp) = t; break; } case INSTR_callFastFFtoF: { // Floating point call. PolyWord rtsCall = (*sp++).AsObjPtr()->Get(0); // Value holds address. PolyWord rtsArg2 = *sp++; PolyWord rtsArg1 = *sp++; callRTSFFtoF doCall = (callRTSFFtoF)rtsCall.AsCodePtr(); float argument1 = unboxFloat(rtsArg1); float argument2 = unboxFloat(rtsArg2); // Allocate memory for the result. float result = doCall(argument1, argument2); PolyObject *t = boxFloat(result, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *(--sp) = t; break; } case INSTR_callFastGtoF: { // Call that takes a POLYUNSIGNED argument and returns a double. PolyWord rtsCall = (*sp++).AsObjPtr()->Get(0); // Value holds address. intptr_t rtsArg1 = (*sp++).AsSigned(); callRTSGtoF doCall = (callRTSGtoF)rtsCall.AsCodePtr(); // Allocate memory for the result. float result = doCall(rtsArg1); PolyObject *t = boxFloat(result, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *(--sp) = t; break; } case INSTR_callFastFGtoF: { // Call that takes a POLYUNSIGNED argument and returns a double. PolyWord rtsCall = (*sp++).AsObjPtr()->Get(0); // Value holds address. intptr_t rtsArg2 = (*sp++).AsSigned(); PolyWord rtsArg1 = *sp++; callRTSFGtoF doCall = (callRTSFGtoF)rtsCall.AsCodePtr(); float argument1 = unboxFloat(rtsArg1); // Allocate memory for the result. float result = doCall(argument1, rtsArg2); PolyObject *t = boxFloat(result, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *(--sp) = t; break; } case INSTR_notBoolean: *sp = ((*sp) == True) ? False : True; break; case INSTR_isTagged: *sp = (*sp).IsTagged() ? True : False; break; case INSTR_cellLength: /* Return the length word. */ *sp = TAGGED((*sp).AsObjPtr()->Length()); break; case INSTR_cellFlags: { PolyObject *p = (*sp).AsObjPtr(); POLYUNSIGNED f = (p->LengthWord()) >> OBJ_PRIVATE_FLAGS_SHIFT; *sp = TAGGED(f); break; } case INSTR_clearMutable: { PolyObject *obj = (*sp).AsObjPtr(); POLYUNSIGNED lengthW = obj->LengthWord(); /* Clear the mutable bit. */ obj->SetLengthWord(lengthW & ~_OBJ_MUTABLE_BIT); *sp = Zero; break; } case INSTR_stringLength: // Now replaced by loadUntagged *sp = TAGGED(((PolyStringObject*)(*sp).AsObjPtr())->length); break; case INSTR_atomicIncr: { PLocker l(&mutexLock); PolyObject *p = (*sp).AsObjPtr(); PolyWord newValue = TAGGED(UNTAGGED(p->Get(0))+1); p->Set(0, newValue); *sp = newValue; break; } case INSTR_atomicDecr: { PLocker l(&mutexLock); PolyObject *p = (*sp).AsObjPtr(); PolyWord newValue = TAGGED(UNTAGGED(p->Get(0))-1); p->Set(0, newValue); *sp = newValue; break; } case INSTR_atomicReset: { // This is needed in the interpreted version otherwise there // is a chance that we could set the value to zero while another // thread is between getting the old value and setting it to the new value. PLocker l(&mutexLock); PolyObject *p = (*sp).AsObjPtr(); p->Set(0, TAGGED(1)); // Set this to released. *sp = TAGGED(0); // Push the unit result break; } case INSTR_longWToTagged: { // Extract the first word and return it as a tagged value. This loses the top-bit POLYUNSIGNED wx = (*sp).AsObjPtr()->Get(0).AsUnsigned(); *sp = TAGGED(wx); break; } case INSTR_signedToLongW: { // Shift the tagged value to remove the tag and put it into the first word. // The original sign bit is copied in the shift. intptr_t wx = (*sp).UnTagged(); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(intptr_t*)t = wx; *sp = (PolyWord)t; break; } case INSTR_unsignedToLongW: { // As with the above except the value is treated as an unsigned // value and the top bit is zero. uintptr_t wx = (*sp).UnTaggedUnsigned(); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wx; *sp = (PolyWord)t; break; } case INSTR_realAbs: { PolyObject *t = this->boxDouble(fabs(unboxDouble(*sp)), pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_realNeg: { PolyObject *t = this->boxDouble(-(unboxDouble(*sp)), pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_floatAbs: { PolyObject *t = this->boxFloat(fabs(unboxFloat(*sp)), pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_floatNeg: { PolyObject *t = this->boxFloat(-(unboxFloat(*sp)), pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_fixedIntToReal: { POLYSIGNED u = UNTAGGED(*sp); PolyObject *t = this->boxDouble((double)u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_fixedIntToFloat: { POLYSIGNED u = UNTAGGED(*sp); PolyObject *t = this->boxFloat((float)u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_floatToReal: { float u = unboxFloat(*sp); PolyObject *t = this->boxDouble((double)u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_equalWord: { PolyWord u = *sp++; *sp = u == (*sp) ? True : False; break; } case INSTR_lessSigned: { PolyWord u = *sp++; *sp = ((*sp).AsSigned() < u.AsSigned()) ? True : False; break; } case INSTR_lessUnsigned: { PolyWord u = *sp++; *sp = ((*sp).AsUnsigned() < u.AsUnsigned()) ? True : False; break; } case INSTR_lessEqSigned: { PolyWord u = *sp++; *sp = ((*sp).AsSigned() <= u.AsSigned()) ? True : False; break; } case INSTR_lessEqUnsigned: { PolyWord u = *sp++; *sp = ((*sp).AsUnsigned() <= u.AsUnsigned()) ? True : False; break; } case INSTR_greaterSigned: { PolyWord u = *sp++; *sp = ((*sp).AsSigned() > u.AsSigned()) ? True : False; break; } case INSTR_greaterUnsigned: { PolyWord u = *sp++; *sp = ((*sp).AsUnsigned() > u.AsUnsigned()) ? True : False; break; } case INSTR_greaterEqSigned: { PolyWord u = *sp++; *sp = ((*sp).AsSigned() >= u.AsSigned()) ? True : False; break; } case INSTR_greaterEqUnsigned: { PolyWord u = *sp++; *sp = ((*sp).AsUnsigned() >= u.AsUnsigned()) ? True : False; break; } case INSTR_fixedAdd: { PolyWord x = *sp++; PolyWord y = (*sp); POLYSIGNED t = UNTAGGED(x) + UNTAGGED(y); if (t <= MAXTAGGED && t >= -MAXTAGGED-1) *sp = TAGGED(t); else { *(--sp) = (PolyWord)overflowPacket; goto RAISE_EXCEPTION; } break; } case INSTR_fixedSub: { PolyWord x = *sp++; PolyWord y = (*sp); POLYSIGNED t = UNTAGGED(y) - UNTAGGED(x); if (t <= MAXTAGGED && t >= -MAXTAGGED-1) *sp = TAGGED(t); else { *(--sp) = (PolyWord)overflowPacket; goto RAISE_EXCEPTION; } break; } case INSTR_fixedMult: { // We need to detect overflow. There doesn't seem to be any convenient way to do // this so we use the arbitrary precision package and check whether the result is short. // Clang and GCC 5.0 have __builtin_mul_overflow which will do this but GCC 5.0 is not // currently (July 2016) in Debian stable. Handle reset = this->saveVec.mark(); Handle pushedArg1 = this->saveVec.push(*sp++); Handle pushedArg2 = this->saveVec.push(*sp); + SaveInterpreterState(pc, sp); // mult_longc allocates memory and may GC even if it doesn't overflow. Handle result = mult_longc(this, pushedArg2, pushedArg1); + LoadInterpreterState(pc, sp); PolyWord res = result->Word(); this->saveVec.reset(reset); if (! res.IsTagged()) { *(--sp) = (PolyWord)overflowPacket; goto RAISE_EXCEPTION; } *sp = res; break; } case INSTR_fixedQuot: { // Zero and overflow are checked for in ML. POLYSIGNED u = UNTAGGED(*sp++); PolyWord y = (*sp); *sp = TAGGED(UNTAGGED(y) / u); break; } case INSTR_fixedRem: { // Zero and overflow are checked for in ML. POLYSIGNED u = UNTAGGED(*sp++); PolyWord y = (*sp); *sp = TAGGED(UNTAGGED(y) % u); break; } case INSTR_wordAdd: { PolyWord u = *sp++; // Because we're not concerned with overflow we can just add the values and subtract the tag. *sp = PolyWord::FromUnsigned((*sp).AsUnsigned() + u.AsUnsigned() - TAGGED(0).AsUnsigned()); break; } case INSTR_wordSub: { PolyWord u = *sp++; *sp = PolyWord::FromUnsigned((*sp).AsUnsigned() - u.AsUnsigned() + TAGGED(0).AsUnsigned()); break; } case INSTR_wordMult: { PolyWord u = *sp++; *sp = TAGGED(UNTAGGED_UNSIGNED(*sp) * UNTAGGED_UNSIGNED(u)); break; } case INSTR_wordDiv: { POLYUNSIGNED u = UNTAGGED_UNSIGNED(*sp++); // Detection of zero is done in ML *sp = TAGGED(UNTAGGED_UNSIGNED(*sp) / u); break; } case INSTR_wordMod: { POLYUNSIGNED u = UNTAGGED_UNSIGNED(*sp++); *sp = TAGGED(UNTAGGED_UNSIGNED(*sp) % u); break; } case INSTR_wordAnd: { PolyWord u = *sp++; // Since both of these should be tagged the tag bit will be preserved. *sp = PolyWord::FromUnsigned((*sp).AsUnsigned() & u.AsUnsigned()); break; } case INSTR_wordOr: { PolyWord u = *sp++; // Since both of these should be tagged the tag bit will be preserved. *sp = PolyWord::FromUnsigned((*sp).AsUnsigned() | u.AsUnsigned()); break; } case INSTR_wordXor: { PolyWord u = *sp++; // This will remove the tag bit so it has to be reinstated. *sp = PolyWord::FromUnsigned(((*sp).AsUnsigned() ^ u.AsUnsigned()) | TAGGED(0).AsUnsigned()); break; } case INSTR_wordShiftLeft: { // ML requires shifts greater than a word to return zero. // That's dealt with at the higher level. PolyWord u = *sp++; *sp = TAGGED(UNTAGGED_UNSIGNED(*sp) << UNTAGGED_UNSIGNED(u)); break; } case INSTR_wordShiftRLog: { PolyWord u = *sp++; *sp = TAGGED(UNTAGGED_UNSIGNED(*sp) >> UNTAGGED_UNSIGNED(u)); break; } case INSTR_wordShiftRArith: { PolyWord u = *sp++; // Strictly speaking, C does not require that this uses // arithmetic shifting so we really ought to set the // high-order bits explicitly. *sp = TAGGED(UNTAGGED(*sp) >> UNTAGGED(u)); break; } case INSTR_allocByteMem: { // Allocate byte segment. This does not need to be initialised. POLYUNSIGNED flags = UNTAGGED_UNSIGNED(*sp++); POLYUNSIGNED length = UNTAGGED_UNSIGNED(*sp); PolyObject *t = this->allocateMemory(length, pc, sp); if (t == 0) goto RAISE_EXCEPTION; // Exception t->SetLengthWord(length, (byte)flags); *sp = (PolyWord)t; break; } case INSTR_lgWordEqual: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); *sp = wx == wy ? True : False; break; } case INSTR_lgWordLess: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); *sp = (wy < wx) ? True : False; break; } case INSTR_lgWordLessEq: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); *sp = (wy <= wx) ? True : False; break; } case INSTR_lgWordGreater: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); *sp = (wy > wx) ? True : False; break; } case INSTR_lgWordGreaterEq: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); *sp = (wy >= wx) ? True : False; break; } case INSTR_lgWordAdd: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy+wx; *sp = (PolyWord)t; break; } case INSTR_lgWordSub: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy-wx; *sp = (PolyWord)t; break; } case INSTR_lgWordMult: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy*wx; *sp = (PolyWord)t; break; } case INSTR_lgWordDiv: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy/wx; *sp = (PolyWord)t; break; } case INSTR_lgWordMod: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy%wx; *sp = (PolyWord)t; break; } case INSTR_lgWordAnd: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy&wx; *sp = (PolyWord)t; break; } case INSTR_lgWordOr: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy|wx; *sp = (PolyWord)t; break; } case INSTR_lgWordXor: { uintptr_t wx = *(uintptr_t*)((*sp++).AsObjPtr()); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy^wx; *sp = (PolyWord)t; break; } case INSTR_lgWordShiftLeft: { // The shift amount is a tagged word not a boxed large word POLYUNSIGNED wx = UNTAGGED_UNSIGNED(*sp++); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy << wx; *sp = (PolyWord)t; break; } case INSTR_lgWordShiftRLog: { // The shift amount is a tagged word not a boxed large word POLYUNSIGNED wx = UNTAGGED_UNSIGNED(*sp++); uintptr_t wy = *(uintptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = wy >> wx; *sp = (PolyWord)t; break; } case INSTR_lgWordShiftRArith: { // The shift amount is a tagged word not a boxed large word POLYUNSIGNED wx = UNTAGGED_UNSIGNED(*sp++); intptr_t wy = *(intptr_t*)((*sp).AsObjPtr()); PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(intptr_t*)t = wy >> wx; *sp = (PolyWord)t; break; } case INSTR_realEqual: { double u = unboxDouble(*sp++); *sp = u == unboxDouble(*sp) ? True: False; break; } case INSTR_realLess: { double u = unboxDouble(*sp++); *sp = unboxDouble(*sp) < u ? True: False; break; } case INSTR_realLessEq: { double u = unboxDouble(*sp++); *sp = unboxDouble(*sp) <= u ? True: False; break; } case INSTR_realGreater: { double u = unboxDouble(*sp++); *sp = unboxDouble(*sp) > u ? True: False; break; } case INSTR_realGreaterEq: { double u = unboxDouble(*sp++); *sp = unboxDouble(*sp) >= u ? True: False; break; } case INSTR_realUnordered: { double u = unboxDouble(*sp++); double v = unboxDouble(*sp); *sp = (std::isnan(u) || std::isnan(v)) ? True : False; break; } case INSTR_realAdd: { double u = unboxDouble(*sp++); double v = unboxDouble(*sp); PolyObject *t = this->boxDouble(v+u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_realSub: { double u = unboxDouble(*sp++); double v = unboxDouble(*sp); PolyObject *t = this->boxDouble(v-u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_realMult: { double u = unboxDouble(*sp++); double v = unboxDouble(*sp); PolyObject *t = this->boxDouble(v*u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_realDiv: { double u = unboxDouble(*sp++); double v = unboxDouble(*sp); PolyObject *t = this->boxDouble(v/u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_floatEqual: { float u = unboxFloat(*sp++); *sp = u == unboxFloat(*sp) ? True : False; break; } case INSTR_floatLess: { float u = unboxFloat(*sp++); *sp = unboxFloat(*sp) < u ? True : False; break; } case INSTR_floatLessEq: { float u = unboxFloat(*sp++); *sp = unboxFloat(*sp) <= u ? True : False; break; } case INSTR_floatGreater: { float u = unboxFloat(*sp++); *sp = unboxFloat(*sp) > u ? True : False; break; } case INSTR_floatGreaterEq: { float u = unboxFloat(*sp++); *sp = unboxFloat(*sp) >= u ? True : False; break; } case INSTR_floatUnordered: { float u = unboxFloat(*sp++); float v = unboxFloat(*sp); *sp = (std::isnan(u) || std::isnan(v)) ? True : False; break; } case INSTR_floatAdd: { float u = unboxFloat(*sp++); float v = unboxFloat(*sp); PolyObject *t = this->boxFloat(v + u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_floatSub: { float u = unboxFloat(*sp++); float v = unboxFloat(*sp); PolyObject *t = this->boxFloat(v - u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_floatMult: { float u = unboxFloat(*sp++); float v = unboxFloat(*sp); PolyObject *t = this->boxFloat(v*u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_floatDiv: { float u = unboxFloat(*sp++); float v = unboxFloat(*sp); PolyObject *t = this->boxFloat(v / u, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_realToFloat: { // Convert a double to a float. It's complicated because it depends on the rounding mode. int rMode = *pc++; int current = getrounding(); // If the rounding is 4 it means "use current rounding". // Don't call unboxDouble until we're set the rounding. GCC seems to convert it // before the actual float cast. if (rMode < 4) setrounding(rMode); double d = unboxDouble(*sp); float v = (float)d; // Convert with the appropriate rounding. setrounding(current); PolyObject *t = this->boxFloat(v, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = t; break; } case INSTR_realToInt: dv = unboxDouble(*sp); goto realtoint; case INSTR_floatToInt: dv = (double)unboxFloat(*sp); realtoint: { // Convert a double or a float to a tagged integer. int rMode = *pc++; // We mustn't try converting a value that will overflow the conversion // but we need to be careful that we don't raise overflow incorrectly due // to rounding. if (dv > (double)(MAXTAGGED + MAXTAGGED / 2) || dv < -(double)(MAXTAGGED + MAXTAGGED / 2)) { *(--sp) = overflowPacket; goto RAISE_EXCEPTION; } POLYSIGNED p; switch (rMode) { case POLY_ROUND_TONEAREST: p = (POLYSIGNED)round(dv); break; case POLY_ROUND_DOWNWARD: p = (POLYSIGNED)floor(dv); break; case POLY_ROUND_UPWARD: p = (POLYSIGNED)ceil(dv); break; case POLY_ROUND_TOZERO: default: // Truncation is the default for C. p = (POLYSIGNED)dv; } // Check that the value can be tagged. if (p > MAXTAGGED || p < -MAXTAGGED - 1) { *(--sp) = overflowPacket; goto RAISE_EXCEPTION; } *sp = TAGGED(p); break; } case INSTR_getThreadId: *(--sp) = (PolyWord)this->threadObject; break; case INSTR_allocWordMemory: { // Allocate word segment. This must be initialised. // We mustn't pop the initialiser until after any potential GC. POLYUNSIGNED length = UNTAGGED_UNSIGNED(sp[2]); PolyObject *t = this->allocateMemory(length, pc, sp); if (t == 0) goto RAISE_EXCEPTION; PolyWord initialiser = *sp++; POLYUNSIGNED flags = UNTAGGED_UNSIGNED(*sp++); t->SetLengthWord(length, (byte)flags); *sp = (PolyWord)t; // Have to initialise the data. for (; length > 0; ) t->Set(--length, initialiser); break; } case INSTR_alloc_ref: { // Allocate a single word mutable cell. This is more common than allocWordMemory on its own. PolyObject *t = this->allocateMemory(1, pc, sp); if (t == 0) goto RAISE_EXCEPTION; PolyWord initialiser = (*sp); t->SetLengthWord(1, F_MUTABLE_BIT); t->Set(0, initialiser); *sp = (PolyWord)t; break; } case INSTR_loadMLWord: { // The values on the stack are base, index and offset. POLYUNSIGNED offset = UNTAGGED(*sp++); POLYUNSIGNED index = UNTAGGED(*sp++); PolyObject *p = (PolyObject*)((*sp).AsCodePtr() + offset); *sp = p->Get(index); break; } case INSTR_loadMLByte: { // The values on the stack are base and index. POLYUNSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = (*sp).AsCodePtr(); *sp = TAGGED(p[index]); // Have to tag the result break; } case INSTR_loadC8: { // This is similar to loadMLByte except that the base address is a boxed large-word. // Also the index is SIGNED. POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())); *sp = TAGGED(p[index]); // Have to tag the result break; } case INSTR_loadC16: { // This and the other loads are similar to loadMLWord with separate // index and offset values. POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; POLYUNSIGNED r = ((uint16_t*)p)[index]; *sp = TAGGED(r); break; } case INSTR_loadC32: { POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; uintptr_t r = ((uint32_t*)p)[index]; #ifdef IS64BITS // This is tagged in 64-bit mode *sp = TAGGED(r); #else // But boxed in 32-bit mode. PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = r; *sp = (PolyWord)t; #endif break; } #if (defined(IS64BITS)) case INSTR_loadC64: { POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; uintptr_t r = ((uint64_t*)p)[index]; // This must be boxed. PolyObject *t = this->allocateMemory(LGWORDSIZE, pc, sp); if (t == 0) goto RAISE_EXCEPTION; t->SetLengthWord(LGWORDSIZE, F_BYTE_OBJ); *(uintptr_t*)t = r; *sp = (PolyWord)t; break; } #endif case INSTR_loadCFloat: { POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; double r = ((float*)p)[index]; // This must be boxed. PolyObject *t = this->boxDouble(r, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_loadCDouble: { POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; double r = ((double*)p)[index]; // This must be boxed. PolyObject *t = this->boxDouble(r, pc, sp); if (t == 0) goto RAISE_EXCEPTION; *sp = (PolyWord)t; break; } case INSTR_loadUntagged: { // The values on the stack are base, index and offset. POLYUNSIGNED offset = UNTAGGED(*sp++); POLYUNSIGNED index = UNTAGGED(*sp++); PolyObject *p = (PolyObject*)((*sp).AsCodePtr() + offset); *sp = TAGGED(p->Get(index).AsUnsigned()); break; } case INSTR_storeMLWord: { PolyWord toStore = *sp++; POLYUNSIGNED offset = UNTAGGED(*sp++); POLYUNSIGNED index = UNTAGGED(*sp++); PolyObject *p = (PolyObject*)((*sp).AsCodePtr() + offset); p->Set(index, toStore); *sp = Zero; break; } case INSTR_storeMLByte: { POLYUNSIGNED toStore = UNTAGGED(*sp++); POLYUNSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = (*sp).AsCodePtr(); p[index] = (byte)toStore; *sp = Zero; break; } case INSTR_storeC8: { // Similar to storeMLByte except that the base address is a boxed large-word. POLYUNSIGNED toStore = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())); p[index] = (byte)toStore; *sp = Zero; break; } case INSTR_storeC16: { uint16_t toStore = (uint16_t)UNTAGGED(*sp++); POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; ((uint16_t*)p)[index] = toStore; *sp = Zero; break; } case INSTR_storeC32: { #ifdef IS64BITS // This is a tagged value in 64-bit mode. uint32_t toStore = (uint32_t)UNTAGGED(*sp++); #else // but a boxed value in 32-bit mode. uint32_t toStore = (uint32_t)(*(uintptr_t*)((*sp++).AsObjPtr())); #endif POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; ((uint32_t*)p)[index] = toStore; *sp = Zero; break; } #if (defined(IS64BITS)) case INSTR_storeC64: { // This is a boxed value. uint64_t toStore = *(uintptr_t*)((*sp++).AsObjPtr()); POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; ((uint64_t*)p)[index] = toStore; *sp = Zero; break; } #endif case INSTR_storeCFloat: { // This is a boxed value. float toStore = (float)unboxDouble(*sp++); POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; ((float*)p)[index] = toStore; *sp = Zero; break; } case INSTR_storeCDouble: { // This is a boxed value. double toStore = unboxDouble(*sp++); POLYSIGNED offset = UNTAGGED(*sp++); POLYSIGNED index = UNTAGGED(*sp++); POLYCODEPTR p = *((byte **)((*sp).AsObjPtr())) + offset; ((double*)p)[index] = toStore; *sp = Zero; break; } case INSTR_storeUntagged: { PolyWord toStore = PolyWord::FromUnsigned(UNTAGGED_UNSIGNED(*sp++)); POLYUNSIGNED offset = UNTAGGED(*sp++); POLYUNSIGNED index = UNTAGGED(*sp++); PolyObject *p = (PolyObject*)((*sp).AsCodePtr() + offset); p->Set(index, toStore); *sp = Zero; break; } case INSTR_blockMoveWord: { // The offsets are byte counts but the the indexes are in words. POLYUNSIGNED length = UNTAGGED_UNSIGNED(*sp++); POLYUNSIGNED destOffset = UNTAGGED_UNSIGNED(*sp++); POLYUNSIGNED destIndex = UNTAGGED_UNSIGNED(*sp++); PolyObject *dest = (PolyObject*)((*sp++).AsCodePtr() + destOffset); POLYUNSIGNED srcOffset = UNTAGGED_UNSIGNED(*sp++); POLYUNSIGNED srcIndex = UNTAGGED_UNSIGNED(*sp++); PolyObject *src = (PolyObject*)((*sp).AsCodePtr() + srcOffset); for (POLYUNSIGNED u = 0; u < length; u++) dest->Set(destIndex+u, src->Get(srcIndex+u)); *sp = Zero; break; } case INSTR_blockMoveByte: { POLYUNSIGNED length = UNTAGGED_UNSIGNED(*sp++); POLYUNSIGNED destOffset = UNTAGGED_UNSIGNED(*sp++); POLYCODEPTR dest = (*sp++).AsCodePtr(); POLYUNSIGNED srcOffset = UNTAGGED_UNSIGNED(*sp++); POLYCODEPTR src = (*sp).AsCodePtr(); memcpy(dest+destOffset, src+srcOffset, length); *sp = Zero; break; } case INSTR_blockEqualByte: { POLYUNSIGNED length = UNTAGGED_UNSIGNED(*sp++); POLYUNSIGNED arg2Offset = UNTAGGED_UNSIGNED(*sp++); POLYCODEPTR arg2Ptr = (*sp++).AsCodePtr(); POLYUNSIGNED arg1Offset = UNTAGGED_UNSIGNED(*sp++); POLYCODEPTR arg1Ptr = (*sp).AsCodePtr(); *sp = memcmp(arg1Ptr+arg1Offset, arg2Ptr+arg2Offset, length) == 0 ? True : False; break; } case INSTR_blockCompareByte: { POLYUNSIGNED length = UNTAGGED_UNSIGNED(*sp++); POLYUNSIGNED arg2Offset = UNTAGGED_UNSIGNED(*sp++); POLYCODEPTR arg2Ptr = (*sp++).AsCodePtr(); POLYUNSIGNED arg1Offset = UNTAGGED_UNSIGNED(*sp++); POLYCODEPTR arg1Ptr = (*sp).AsCodePtr(); int result = memcmp(arg1Ptr+arg1Offset, arg2Ptr+arg2Offset, length); *sp = result == 0 ? TAGGED(0) : result < 0 ? TAGGED(-1) : TAGGED(1); break; } default: Crash("Unknown instruction %x\n", pc[-1]); } /* switch */ } /* for */ return 0; } /* MD_switch_to_poly */ void IntTaskData::GarbageCollect(ScanAddress *process) { TaskData::GarbageCollect(process); overflowPacket = process->ScanObjectAddress(overflowPacket); dividePacket = process->ScanObjectAddress(dividePacket); if (stack != 0) { StackSpace *stackSpace = stack; PolyWord *stackPtr = this->taskSp; // The exception arg if any ScanStackAddress(process, this->exception_arg, stackSpace); // Now the values on the stack. for (PolyWord *q = stackPtr; q < stackSpace->top; q++) ScanStackAddress(process, *q, stackSpace); } } // Process a value within the stack. void IntTaskData::ScanStackAddress(ScanAddress *process, PolyWord &val, StackSpace *stack) { if (! val.IsDataPtr()) return; MemSpace *space = gMem.LocalSpaceForAddress(val.AsStackAddr()-1); if (space != 0) val = process->ScanObjectAddress(val.AsObjPtr()); } // Copy a stack void IntTaskData::CopyStackFrame(StackObject *old_stack, uintptr_t old_length, StackObject *new_stack, uintptr_t new_length) { /* Moves a stack, updating all references within the stack */ PolyWord *old_base = (PolyWord *)old_stack; PolyWord *new_base = (PolyWord*)new_stack; PolyWord *old_top = old_base + old_length; /* Calculate the offset of the new stack from the old. If the frame is being extended objects in the new frame will be further up the stack than in the old one. */ uintptr_t offset = new_base - old_base + new_length - old_length; PolyWord *oldSp = this->taskSp; this->taskSp = oldSp + offset; this->hr = this->hr + offset; /* Skip the unused part of the stack. */ uintptr_t i = oldSp - old_base; ASSERT(i <= old_length); i = old_length - i; PolyWord *old = oldSp; PolyWord *newp = this->taskSp; while (i--) { // ASSERT(old >= old_base && old < old_base+old_length); // ASSERT(newp >= new_base && newp < new_base+new_length); PolyWord old_word = *old++; if (old_word.IsTagged() || old_word.AsStackAddr() < old_base || old_word.AsStackAddr() >= old_top) *newp++ = old_word; else *newp++ = PolyWord::FromStackAddr(old_word.AsStackAddr() + offset); } ASSERT(old == ((PolyWord*)old_stack) + old_length); ASSERT(newp == ((PolyWord*)new_stack) + new_length); } Handle IntTaskData::EnterPolyCode() /* Called from "main" to enter the code. */ { Handle hOriginal = this->saveVec.mark(); // Set this up for the IO calls. while (1) { this->saveVec.reset(hOriginal); // Remove old RTS arguments and results. // Run the ML code and return with the function to call. this->inML = true; int ioFunction = SwitchToPoly(); this->inML = false; try { switch (ioFunction) { case -1: // We've been interrupted. This usually involves simulating a // stack overflow so we could come here because of a genuine // stack overflow. // Previously this code was executed on every RTS call but there // were problems on Mac OS X at least with contention on schedLock. // Process any asynchronous events i.e. interrupts or kill processes->ProcessAsynchRequests(this); // Release and re-acquire use of the ML memory to allow another thread // to GC. processes->ThreadReleaseMLMemory(this); processes->ThreadUseMLMemory(this); break; case -2: // A callback has returned. ASSERT(0); // Callbacks aren't implemented default: Crash("Unknown io operation %d\n", ioFunction); } } catch (IOException &) { } } } // As far as possible we want locking and unlocking an ML mutex to be fast so // we try to implement the code in the assembly code using appropriate // interlocked instructions. That does mean that if we need to lock and // unlock an ML mutex in this code we have to use the same, machine-dependent, // code to do it. These are defaults that are used where there is no // machine-specific code. static Handle ProcessAtomicIncrement(TaskData *taskData, Handle mutexp) { PLocker l(&mutexLock); PolyObject *p = DEREFHANDLE(mutexp); // A thread can only call this once so the values will be short PolyWord newValue = TAGGED(UNTAGGED(p->Get(0))+1); p->Set(0, newValue); return taskData->saveVec.push(newValue); } // Release a mutex. We need to lock the mutex to ensure we don't // reset it in the time between one of atomic operations reading // and writing the mutex. static Handle ProcessAtomicReset(TaskData *taskData, Handle mutexp) { PLocker l(&mutexLock); DEREFHANDLE(mutexp)->Set(0, TAGGED(1)); // Set this to released. return taskData->saveVec.push(TAGGED(0)); // Push the unit result } Handle IntTaskData::AtomicIncrement(Handle mutexp) { return ProcessAtomicIncrement(this, mutexp); } void IntTaskData::AtomicReset(Handle mutexp) { (void)ProcessAtomicReset(this, mutexp); } bool IntTaskData::AddTimeProfileCount(SIGNALCONTEXT *context) { if (taskPc != 0) { // See if the PC we've got is an ML code address. MemSpace *space = gMem.SpaceForAddress(taskPc); if (space != 0 && (space->spaceType == ST_CODE || space->spaceType == ST_PERMANENT)) { add_count(this, taskPc, 1); return true; } } return false; } static Interpreter interpreterObject; MachineDependent *machineDependent = &interpreterObject; diff --git a/libpolyml/process_env.cpp b/libpolyml/process_env.cpp index 5d458b05..991a3f02 100644 --- a/libpolyml/process_env.cpp +++ b/libpolyml/process_env.cpp @@ -1,771 +1,763 @@ /* Title: Process environment. Copyright (c) 2000-8, 2016-17 David C. J. Matthews This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifdef HAVE_CONFIG_H #include "config.h" #elif defined(_WIN32) #include "winconfig.h" #else #error "No configuration file" #endif #ifdef HAVE_STDIO_H #include #endif #ifdef HAVE_ERRNO_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_SYS_PARAM_H #include #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_SYS_WAIT_H #include #endif #if (defined(__CYGWIN__) || defined(_WIN32)) #include #endif #ifdef HAVE_ASSERT_H #include #define ASSERT(x) assert(x) #else #define ASSERT(x) 0 #endif // Include this next before errors.h since in WinCE at least the winsock errors are defined there. #if (defined(_WIN32) && ! defined(__CYGWIN__)) #include #include #define NOMEMORY ERROR_NOT_ENOUGH_MEMORY #undef ENOMEM #else typedef char TCHAR; #define _tgetenv getenv #define NOMEMORY ENOMEM #endif #include "globals.h" #include "sys.h" #include "run_time.h" #include "process_env.h" #include "arb.h" #include "mpoly.h" #include "gc.h" #include "scanaddrs.h" #include "polystring.h" #include "save_vec.h" #include "process_env.h" #include "rts_module.h" #include "machine_dep.h" #include "processes.h" #include "locking.h" #include "errors.h" #include "rtsentry.h" #include "version.h" extern "C" { POLYEXTERNALSYMBOL void PolyFinish(FirstArgument threadId, PolyWord arg); POLYEXTERNALSYMBOL void PolyTerminate(FirstArgument threadId, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyProcessEnvGeneral(FirstArgument threadId, PolyWord code, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyProcessEnvErrorName(FirstArgument threadId, PolyWord syserr); POLYEXTERNALSYMBOL POLYUNSIGNED PolyProcessEnvErrorMessage(FirstArgument threadId, PolyWord syserr); POLYEXTERNALSYMBOL POLYUNSIGNED PolyProcessEnvErrorFromString(FirstArgument threadId, PolyWord string); POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetMaxAllocationSize(); POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetMaxStringSize(); POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetPolyVersionNumber(); POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetFunctionName(FirstArgument threadId, PolyWord fnAddr); } #define SAVE(x) mdTaskData->saveVec.push(x) #define ALLOC(n) alloc_and_save(mdTaskData, n) #if (defined(_WIN32) && ! defined(__CYGWIN__)) #define ISPATHSEPARATOR(c) ((c) == '\\' || (c) == '/') #define DEFAULTSEPARATOR "\\" #else #define ISPATHSEPARATOR(c) ((c) == '/') #define DEFAULTSEPARATOR "/" #endif #ifdef _MSC_VER // Don't tell me about ISO C++ changes. #pragma warning(disable:4996) #endif // "environ" is declared in the headers on some systems but not all. // Oddly, declaring it within process_env_dispatch_c causes problems // on mingw where "environ" is actually a function. #if __APPLE__ // On Mac OS X there may be problems accessing environ directly. #include #define environ (*_NSGetEnviron()) #else extern char **environ; #endif /* Functions registered with atExit are added to this list. */ static PolyWord at_exit_list = TAGGED(0); /* Once "exit" is called this flag is set and no further calls to atExit are allowed. */ static bool exiting = false; static PLock atExitLock; // Thread lock for above. #ifdef __CYGWIN__ // Cygwin requires spawnvp to avoid the significant overhead of vfork // but it doesn't seem to be thread-safe. Run it on the main thread // to be sure. class CygwinSpawnRequest: public MainThreadRequest { public: CygwinSpawnRequest(char **argv): MainThreadRequest(MTP_CYGWINSPAWN), spawnArgv(argv) {} virtual void Perform(); char **spawnArgv; int pid; }; void CygwinSpawnRequest::Perform() { pid = spawnvp(_P_NOWAIT, "/bin/sh", spawnArgv); } #endif static Handle process_env_dispatch_c(TaskData *mdTaskData, Handle args, Handle code) { unsigned c = get_C_unsigned(mdTaskData, DEREFWORD(code)); switch (c) { case 0: /* Return the program name. */ return SAVE(C_string_to_Poly(mdTaskData, userOptions.programName)); case 1: /* Return the argument list. */ return convert_string_list(mdTaskData, userOptions.user_arg_count, userOptions.user_arg_strings); case 14: /* Return a string from the environment. */ { TempString buff(args->Word()); if (buff == 0) raise_syscall(mdTaskData, "Insufficient memory", NOMEMORY); TCHAR *res = _tgetenv(buff); if (res == NULL) raise_syscall(mdTaskData, "Not Found", 0); else return SAVE(C_string_to_Poly(mdTaskData, res)); } case 21: // Return the whole environment. Only available in Posix.ProcEnv. { /* Count the environment strings */ int env_count = 0; while (environ[env_count] != NULL) env_count++; return convert_string_list(mdTaskData, env_count, environ); } case 15: /* Return the success value. */ return Make_fixed_precision(mdTaskData, EXIT_SUCCESS); case 16: /* Return a failure value. */ return Make_fixed_precision(mdTaskData, EXIT_FAILURE); case 17: /* Run command. */ { TempString buff(args->Word()); if (buff == 0) raise_syscall(mdTaskData, "Insufficient memory", NOMEMORY); int res = -1; #if (defined(_WIN32) && ! defined(__CYGWIN__)) // Windows. TCHAR *argv[4]; argv[0] = _tgetenv(_T("COMSPEC")); // Default CLI. if (argv[0] == 0) argv[0] = (TCHAR*)_T("cmd.exe"); // Win NT etc. argv[1] = (TCHAR*)_T("/c"); argv[2] = buff; argv[3] = NULL; // If _P_NOWAIT is given the result is the process handle. // spawnvp does any necessary path searching if argv[0] // does not contain a full path. intptr_t pid = _tspawnvp(_P_NOWAIT, argv[0], argv); if (pid == -1) raise_syscall(mdTaskData, "Function system failed", errno); #else // Cygwin and Unix char *argv[4]; argv[0] = (char*)"sh"; argv[1] = (char*)"-c"; argv[2] = buff; argv[3] = NULL; #if (defined(__CYGWIN__)) CygwinSpawnRequest request(argv); processes->MakeRootRequest(mdTaskData, &request); int pid = request.pid; if (pid < 0) raise_syscall(mdTaskData, "Function system failed", errno); #else // We need to break this down so that we can unblock signals in the // child process. // The Unix "system" function seems to set SIGINT and SIGQUIT to // SIG_IGN in the parent so that the wait will not be interrupted. // That may make sense in a single-threaded application but is // that right here? int pid = vfork(); if (pid == -1) raise_syscall(mdTaskData, "Function system failed", errno); else if (pid == 0) { // In child sigset_t sigset; sigemptyset(&sigset); sigprocmask(SIG_SETMASK, &sigset, 0); // Reset other signals? execv("/bin/sh", argv); _exit(1); } #endif #endif while (true) { try { // Test to see if the child has returned. #if (defined(_WIN32) && ! defined(__CYGWIN__)) switch (WaitForSingleObject((HANDLE)pid, 0)) { case WAIT_OBJECT_0: { DWORD result; BOOL fResult = GetExitCodeProcess((HANDLE)pid, &result); if (! fResult) raise_syscall(mdTaskData, "Function system failed", GetLastError()); CloseHandle((HANDLE)pid); return Make_fixed_precision(mdTaskData, result); } case WAIT_FAILED: raise_syscall(mdTaskData, "Function system failed", GetLastError()); } // Wait for the process to exit or for the timeout WaitHandle waiter((HANDLE)pid, 1000); processes->ThreadPauseForIO(mdTaskData, &waiter); #else int wRes = waitpid(pid, &res, WNOHANG); if (wRes > 0) break; else if (wRes < 0) { raise_syscall(mdTaskData, "Function system failed", errno); } // In Unix the best we can do is wait. This may be interrupted // by SIGCHLD depending on where signals are processed. // One possibility is for the main thread to somehow wake-up // the thread when it processes a SIGCHLD. processes->ThreadPause(mdTaskData); #endif } catch (...) { // Either IOException or KillException. // We're abandoning the wait. This will leave // a zombie in Unix. #if (defined(_WIN32) && ! defined(__CYGWIN__)) CloseHandle((HANDLE)pid); #endif throw; } } return Make_fixed_precision(mdTaskData, res); } case 18: /* Register function to run at exit. */ { PLocker locker(&atExitLock); if (! exiting) { PolyObject *cell = alloc(mdTaskData, 2); cell->Set(0, at_exit_list); cell->Set(1, args->Word()); at_exit_list = cell; } return Make_fixed_precision(mdTaskData, 0); } case 19: /* Return the next function in the atExit list and set the "exiting" flag to true. */ { PLocker locker(&atExitLock); Handle res; exiting = true; /* Ignore further calls to atExit. */ if (at_exit_list == TAGGED(0)) raise_syscall(mdTaskData, "List is empty", 0); PolyObject *cell = at_exit_list.AsObjPtr(); res = SAVE(cell->Get(1)); at_exit_list = cell->Get(0); return res; } case 20: /* Terminate without running the atExit list or flushing buffers. */ { /* I don't like terminating without some sort of clean up but we'll do it this way for the moment. */ int i = get_C_int(mdTaskData, args->Word()); _exit(i); } /************ Error codes **************/ /************ Directory/file paths **************/ case 5: /* Return the string representing the current arc. */ return SAVE(C_string_to_Poly(mdTaskData, ".")); case 6: /* Return the string representing the parent arc. */ /* I don't know that this exists in MacOS. */ return SAVE(C_string_to_Poly(mdTaskData, "..")); case 7: /* Return the string representing the directory separator. */ return SAVE(C_string_to_Poly(mdTaskData, DEFAULTSEPARATOR)); case 8: /* Test the character to see if it matches a separator. */ { int e = get_C_int(mdTaskData, args->Word()); if (ISPATHSEPARATOR(e)) return Make_fixed_precision(mdTaskData, 1); else return Make_fixed_precision(mdTaskData, 0); } case 9: /* Are names case-sensitive? */ #if (defined(_WIN32) && ! defined(__CYGWIN__)) /* Windows - no. */ return Make_fixed_precision(mdTaskData, 0); #else /* Unix - yes. */ return Make_fixed_precision(mdTaskData, 1); #endif // These are no longer used. The code is handled entirely in ML. case 10: /* Are empty arcs redundant? */ /* Unix and Windows - yes. */ return Make_fixed_precision(mdTaskData, 1); case 11: /* Match the volume name part of a path. */ { const TCHAR *volName = NULL; int isAbs = 0; int toRemove = 0; PolyWord path = args->Word(); /* This examines the start of a string and determines how much of it represents the volume name and returns the number of characters to remove, the volume name and whether it is absolute. One would assume that if there is a volume name then it is absolute but there is a peculiar form in Windows/DOS (e.g. A:b\c) which means the file b\c relative to the currently selected directory on the volume A. */ #if (defined(_WIN32) && ! defined(__CYGWIN__)) TempString buff(path); if (buff == 0) raise_syscall(mdTaskData, "Insufficient memory", NOMEMORY); size_t length = _tcslen(buff); if (length >= 2 && buff[1] == ':') { /* Volume name? */ if (length >= 3 && ISPATHSEPARATOR(buff[2])) { /* Absolute path. */ toRemove = 3; isAbs = 1; } else { toRemove = 2; isAbs = 0; } volName = buff; buff[2] = '\0'; } else if (length > 3 && ISPATHSEPARATOR(buff[0]) && ISPATHSEPARATOR(buff[1]) && ! ISPATHSEPARATOR(buff[2])) { /* UNC name? */ int i; /* Skip the server name. */ for (i = 3; buff[i] != 0 && !ISPATHSEPARATOR(buff[i]); i++); if (ISPATHSEPARATOR(buff[i])) { i++; /* Skip the share name. */ for (; buff[i] != 0 && !ISPATHSEPARATOR(buff[i]); i++); toRemove = i; if (buff[i] != 0) toRemove++; isAbs = 1; volName = buff; buff[i] = '\0'; } } else if (ISPATHSEPARATOR(buff[0])) /* \a\b strictly speaking is relative to the current drive. It's much easier to treat it as absolute. */ { toRemove = 1; isAbs = 1; volName = _T(""); } #else /* Unix - much simpler. */ char toTest = 0; if (IS_INT(path)) toTest = UNTAGGED(path); else { PolyStringObject * ps = (PolyStringObject *)path.AsObjPtr(); if (ps->length > 1) toTest = ps->chars[0]; } if (ISPATHSEPARATOR(toTest)) { toRemove = 1; isAbs = 1; volName = ""; } #endif /* Construct the result. */ { Handle sVol = SAVE(C_string_to_Poly(mdTaskData, volName)); Handle sRes = ALLOC(3); DEREFWORDHANDLE(sRes)->Set(0, TAGGED(toRemove)); DEREFHANDLE(sRes)->Set(1, sVol->Word()); DEREFWORDHANDLE(sRes)->Set(2, TAGGED(isAbs)); return sRes; } } case 12: /* Construct a name from a volume and whether it is absolute. */ { unsigned isAbs = get_C_unsigned(mdTaskData, DEREFHANDLE(args)->Get(1)); PolyWord volName = DEREFHANDLE(args)->Get(0); /* In Unix the volume name will always be empty. */ if (isAbs == 0) return SAVE(volName); /* N.B. The arguments to strconcatc are in reverse. */ else return strconcatc(mdTaskData, SAVE(C_string_to_Poly(mdTaskData, DEFAULTSEPARATOR)), SAVE(volName)); } case 13: /* Is the string a valid file name? */ { PolyWord volName = DEREFWORD(args); // First check for NULL. This is not allowed in either Unix or Windows. if (IS_INT(volName)) { if (volName == TAGGED(0)) return Make_fixed_precision(mdTaskData, 0); } else { PolyStringObject * volume = (PolyStringObject *)(volName.AsObjPtr()); for (POLYUNSIGNED i = 0; i < volume->length; i++) { if (volume->chars[i] == '\0') return Make_fixed_precision(mdTaskData, 0); } } #if (defined(_WIN32) && ! defined(__CYGWIN__)) // We need to look for certain invalid characters but only after // we've converted it to Unicode if necessary. TempString name(volName); for (const TCHAR *p = name; *p != 0; p++) { switch (*p) { case '<': case '>': case ':': case '"': case '\\': case '|': case '?': case '*': case '\0': #if (0) // This currently breaks the build. case '/': #endif return Make_fixed_precision(mdTaskData, 0); } if (*p >= 0 && *p <= 31) return Make_fixed_precision(mdTaskData, 0); } // Should we check for special names such as aux, con, prn ?? return Make_fixed_precision(mdTaskData, 1); #else // That's all we need for Unix. // TODO: Check for /. It's invalid in a file name arc. return Make_fixed_precision(mdTaskData, 1); #endif } - // These were supposed to have been moved to poly-specific but don't seem to have been. - case 100: /* Return the maximum word segment size. */ // Legacy - used in bootstrap - return mdTaskData->saveVec.push(TAGGED(MAX_OBJECT_SIZE)); - case 101: /* Return the maximum string size (in bytes). - It is the maximum number of bytes in a segment - less one word for the length field. */ // Legacy - used in bootstrap - return mdTaskData->saveVec.push(TAGGED((MAX_OBJECT_SIZE)*sizeof(PolyWord) - sizeof(PolyWord))); - case 104: return Make_arbitrary_precision(mdTaskData, POLY_version_number); case 105: /* Get the name of the function. */ { PolyObject *pt = DEREFWORDHANDLE(args); if (pt->IsCodeObject()) /* Should now be a code object. */ { /* Compiled code. This is the first constant in the constant area. */ PolyWord *codePt = pt->ConstPtrForCode(); PolyWord name = codePt[0]; /* May be zero indicating an anonymous segment - return null string. */ if (name == PolyWord::FromUnsigned(0)) return SAVE(C_string_to_Poly(mdTaskData, "")); else return SAVE(name); } else raise_syscall(mdTaskData, "Not a code pointer", 0); } default: { char msg[100]; sprintf(msg, "Unknown environment function: %d", c); raise_exception_string(mdTaskData, EXC_Fail, msg); return 0; } } } // General interface to process-env. Ideally the various cases will be made into // separate functions. POLYUNSIGNED PolyProcessEnvGeneral(FirstArgument threadId, PolyWord code, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedCode = taskData->saveVec.push(code); Handle pushedArg = taskData->saveVec.push(arg); Handle result = 0; try { result = process_env_dispatch_c(taskData, pushedArg, pushedCode); } catch (KillException &) { processes->ThreadExit(taskData); // May test for kill } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // Terminate normally with a result code. void PolyFinish(FirstArgument threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); int i = get_C_int(taskData, arg); // Cause the other threads to exit and set the result code. processes->RequestProcessExit(i); // Exit this thread processes->ThreadExit(taskData); // Doesn't return. } // Terminate without running the atExit list or flushing buffers void PolyTerminate(FirstArgument threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); int i = get_C_int(taskData, arg); _exit(i); // Doesn't return. } // Get the name of a numeric error message. POLYUNSIGNED PolyProcessEnvErrorName(FirstArgument threadId, PolyWord syserr) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle result = 0; try { int e = (int)syserr.AsObjPtr()->Get(0).AsSigned(); // First look to see if we have the name in the error table. They should generally all be there. const char *errorMsg = stringFromErrorCode(e); if (errorMsg != NULL) result = taskData->saveVec.push(C_string_to_Poly(taskData, errorMsg)); else { // If it isn't in the table. char buff[40]; sprintf(buff, "ERROR%0d", e); result = taskData->saveVec.push(C_string_to_Poly(taskData, buff)); } } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } /* Get the explanatory message for an error. */ POLYUNSIGNED PolyProcessEnvErrorMessage(FirstArgument threadId, PolyWord syserr) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle result = 0; try { result = errorMsg(taskData, (int)syserr.AsObjPtr()->Get(0).AsSigned()); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // Try to convert an error string to an error number. POLYUNSIGNED PolyProcessEnvErrorFromString(FirstArgument threadId, PolyWord string) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle result = 0; try { char buff[40]; // Get the string. Poly_string_to_C(string, buff, sizeof(buff)); // Look the string up in the table. int err = 0; if (errorCodeFromString(buff, &err)) result = Make_sysword(taskData, err); else if (strncmp(buff, "ERROR", 5) == 0) // If we don't find it then it may have been a constructed error name. result = Make_sysword(taskData, atoi(buff+5)); else result = Make_sysword(taskData, 0); // Return 0w0 if it isn't there. } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // Return the maximum size of a cell that can be allocated on the heap. POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetMaxAllocationSize() { return TAGGED(MAX_OBJECT_SIZE).AsUnsigned(); } // Return the maximum string size (in bytes). // It is the maximum number of bytes in a segment less one word for the length field. POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetMaxStringSize() { return TAGGED((MAX_OBJECT_SIZE) * sizeof(PolyWord) - sizeof(PolyWord)).AsUnsigned(); } POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetPolyVersionNumber() { return TAGGED(POLY_version_number).AsUnsigned(); } // Return the function name associated with a piece of compiled code. POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetFunctionName(FirstArgument threadId, PolyWord fnAddr) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle result = 0; try { if (fnAddr.IsTagged()) raise_fail(taskData, "Not a code pointer"); PolyObject *pt = fnAddr.AsObjPtr(); // In 32-in-64 this may be a closure and the first word is the absolute address of the code. if (pt->IsClosureObject()) { // It may not be set yet. pt = *(PolyObject**)pt; if (((uintptr_t)pt & 1) == 1) raise_fail(taskData, "Not a code pointer"); } if (pt->IsCodeObject()) /* Should now be a code object. */ { /* Compiled code. This is the first constant in the constant area. */ PolyWord *codePt = pt->ConstPtrForCode(); PolyWord name = codePt[0]; /* May be zero indicating an anonymous segment - return null string. */ if (name == PolyWord::FromUnsigned(0)) result = taskData->saveVec.push(C_string_to_Poly(taskData, "")); else result = taskData->saveVec.push(name); } else raise_fail(taskData, "Not a code pointer"); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } struct _entrypts processEnvEPT[] = { { "PolyFinish", (polyRTSFunction)&PolyFinish}, { "PolyTerminate", (polyRTSFunction)&PolyTerminate}, { "PolyProcessEnvGeneral", (polyRTSFunction)&PolyProcessEnvGeneral}, { "PolyProcessEnvErrorName", (polyRTSFunction)&PolyProcessEnvErrorName}, { "PolyProcessEnvErrorMessage", (polyRTSFunction)&PolyProcessEnvErrorMessage}, { "PolyProcessEnvErrorFromString", (polyRTSFunction)&PolyProcessEnvErrorFromString}, { "PolyGetMaxAllocationSize", (polyRTSFunction)&PolyGetMaxAllocationSize }, { "PolyGetMaxStringSize", (polyRTSFunction)&PolyGetMaxStringSize }, { "PolyGetPolyVersionNumber", (polyRTSFunction)&PolyGetPolyVersionNumber }, { "PolyGetFunctionName", (polyRTSFunction)&PolyGetFunctionName }, { NULL, NULL} // End of list. }; class ProcessEnvModule: public RtsModule { public: void GarbageCollect(ScanAddress *process); }; // Declare this. It will be automatically added to the table. static ProcessEnvModule processModule; void ProcessEnvModule::GarbageCollect(ScanAddress *process) /* Ensures that all the objects are retained and their addresses updated. */ { if (at_exit_list.IsDataPtr()) { PolyObject *obj = at_exit_list.AsObjPtr(); process->ScanRuntimeAddress(&obj, ScanAddress::STRENGTH_STRONG); at_exit_list = obj; } } diff --git a/libpolyml/reals.cpp b/libpolyml/reals.cpp index 9ef2321e..68938986 100644 --- a/libpolyml/reals.cpp +++ b/libpolyml/reals.cpp @@ -1,1121 +1,1099 @@ /* Title: Real number package. Author: Dave Matthews, Cambridge University Computer Laboratory Copyright (c) 2000 Cambridge University Technical Services Limited Further work copyright David C.J. Matthews 2011, 2016-18 This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifdef HAVE_CONFIG_H #include "config.h" #elif defined(_WIN32) #include "winconfig.h" #else #error "No configuration file" #endif #ifdef HAVE_IEEEFP_H /* Other operating systems include "finite" in math.h, but Solaris doesn't? */ #include #endif #ifdef HAVE_FPU_CONTROL_H #include #endif #ifdef HAVE_FENV_H #include #endif #ifdef HAVE_FLOAT_H #include #endif #ifdef HAVE_MATH_H #include #endif #ifdef HAVE_STDIO_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_ERRNO_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_STDINT_H #include #endif #ifdef HAVE_ASSERT_H #include #define ASSERT(x) assert(x) #else #define ASSERT(x) #endif #include // Currently just for isnan. #include "globals.h" #include "run_time.h" #include "reals.h" #include "arb.h" #include "sys.h" #include "realconv.h" #include "polystring.h" #include "save_vec.h" #include "rts_module.h" #include "machine_dep.h" #include "processes.h" #include "rtsentry.h" /* The Standard Basis Library assumes IEEE representation for reals. Among other things it does not permit equality on reals. That simplifies things considerably since we don't have to worry about there being two different representations of zero as 0 and ~0. We also don't need to check that the result is finite since NaN is allowed as a result. This code could do with being checked by someone who really understands IEEE floating point arithmetic. */ extern "C" { POLYEXTERNALSYMBOL POLYUNSIGNED PolyRealBoxedToString(FirstArgument threadId, PolyWord arg, PolyWord mode, PolyWord digits); POLYEXTERNALSYMBOL POLYUNSIGNED PolyRealGeneral(FirstArgument threadId, PolyWord code, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyRealBoxedFromString(FirstArgument threadId, PolyWord str); POLYEXTERNALSYMBOL POLYUNSIGNED PolyRealBoxedToLongInt(FirstArgument threadId, PolyWord arg); POLYEXTERNALSYMBOL double PolyRealSqrt(double arg); POLYEXTERNALSYMBOL double PolyRealSin(double arg); POLYEXTERNALSYMBOL double PolyRealCos(double arg); POLYEXTERNALSYMBOL double PolyRealArctan(double arg); POLYEXTERNALSYMBOL double PolyRealExp(double arg); POLYEXTERNALSYMBOL double PolyRealLog(double arg); POLYEXTERNALSYMBOL double PolyRealTan(double arg); POLYEXTERNALSYMBOL double PolyRealArcSin(double arg); POLYEXTERNALSYMBOL double PolyRealArcCos(double arg); POLYEXTERNALSYMBOL double PolyRealLog10(double arg); POLYEXTERNALSYMBOL double PolyRealSinh(double arg); POLYEXTERNALSYMBOL double PolyRealCosh(double arg); POLYEXTERNALSYMBOL double PolyRealTanh(double arg); POLYEXTERNALSYMBOL double PolyRealFloor(double arg); POLYEXTERNALSYMBOL double PolyRealCeil(double arg); POLYEXTERNALSYMBOL double PolyRealTrunc(double arg); POLYEXTERNALSYMBOL double PolyRealRound(double arg); POLYEXTERNALSYMBOL double PolyRealRem(double arg1, double arg2); POLYEXTERNALSYMBOL double PolyFloatArbitraryPrecision(PolyWord arg); POLYEXTERNALSYMBOL POLYSIGNED PolyGetRoundingMode(PolyWord); POLYEXTERNALSYMBOL POLYSIGNED PolySetRoundingMode(PolyWord); POLYEXTERNALSYMBOL POLYUNSIGNED PolyRealSize(PolyWord); POLYEXTERNALSYMBOL double PolyRealAtan2(double arg1, double arg2); POLYEXTERNALSYMBOL double PolyRealPow(double arg1, double arg2); POLYEXTERNALSYMBOL double PolyRealCopySign(double arg1, double arg2); POLYEXTERNALSYMBOL double PolyRealNextAfter(double arg1, double arg2); POLYEXTERNALSYMBOL double PolyRealLdexp(double arg1, PolyWord arg2); POLYEXTERNALSYMBOL POLYUNSIGNED PolyRealFrexp(FirstArgument threadId, PolyWord arg); POLYEXTERNALSYMBOL float PolyRealFSqrt(float arg); POLYEXTERNALSYMBOL float PolyRealFSin(float arg); POLYEXTERNALSYMBOL float PolyRealFCos(float arg); POLYEXTERNALSYMBOL float PolyRealFArctan(float arg); POLYEXTERNALSYMBOL float PolyRealFExp(float arg); POLYEXTERNALSYMBOL float PolyRealFLog(float arg); POLYEXTERNALSYMBOL float PolyRealFTan(float arg); POLYEXTERNALSYMBOL float PolyRealFArcSin(float arg); POLYEXTERNALSYMBOL float PolyRealFArcCos(float arg); POLYEXTERNALSYMBOL float PolyRealFLog10(float arg); POLYEXTERNALSYMBOL float PolyRealFSinh(float arg); POLYEXTERNALSYMBOL float PolyRealFCosh(float arg); POLYEXTERNALSYMBOL float PolyRealFTanh(float arg); POLYEXTERNALSYMBOL float PolyRealFAtan2(float arg1, float arg2); POLYEXTERNALSYMBOL float PolyRealFPow(float arg1, float arg2); POLYEXTERNALSYMBOL float PolyRealFCopySign(float arg1, float arg2); POLYEXTERNALSYMBOL float PolyRealFFloor(float arg); POLYEXTERNALSYMBOL float PolyRealFCeil(float arg); POLYEXTERNALSYMBOL float PolyRealFTrunc(float arg); POLYEXTERNALSYMBOL float PolyRealFRound(float arg); POLYEXTERNALSYMBOL float PolyRealFRem(float arg1, float arg2); POLYEXTERNALSYMBOL float PolyRealFNextAfter(float arg1, float arg2); } static Handle Real_strc(TaskData *mdTaskData, Handle hDigits, Handle hMode, Handle arg); static Handle Real_convc(TaskData *mdTaskData, Handle str); // Positive and negative infinities and (positive) NaN. double posInf, negInf, notANumber; float posInfF, negInfF, notANumberF; /* Real numbers are represented by the address of the value. */ #define DBLE sizeof(double)/sizeof(POLYUNSIGNED) union db { double dble; POLYUNSIGNED words[DBLE]; }; double real_arg(Handle x) { union db r_arg_x; for (unsigned i = 0; i < DBLE; i++) { r_arg_x.words[i] = x->WordP()->Get(i).AsUnsigned(); } return r_arg_x.dble; } Handle real_result(TaskData *mdTaskData, double x) { union db argx; argx.dble = x; PolyObject *v = alloc(mdTaskData, DBLE, F_BYTE_OBJ); /* Copy as words in case the alignment is wrong. */ for(unsigned i = 0; i < DBLE; i++) { v->Set(i, PolyWord::FromUnsigned(argx.words[i])); } return mdTaskData->saveVec.push(v); } // We're using float for Real32 so it needs to be 32-bits. // Assume that's true for the moment. #if (SIZEOF_FLOAT != 4) #error "Float is not 32-bits. Please report this" #endif union flt { float fl; int32_t i; }; #if (SIZEOF_FLOAT < SIZEOF_POLYWORD) // Typically for 64-bit mode. Use a tagged representation. // The code-generator on the X86/64 assumes the float is in the // high order word. #define FLT_SHIFT ((SIZEOF_POLYWORD-SIZEOF_FLOAT)*8) float float_arg(Handle x) { union flt argx; argx.i = x->Word().AsSigned() >> FLT_SHIFT; return argx.fl; } Handle float_result(TaskData *mdTaskData, float x) { union flt argx; argx.fl = x; return mdTaskData->saveVec.push(PolyWord::FromSigned(((POLYSIGNED)argx.i << FLT_SHIFT) + 1)); } #else // Typically for 32-bit mode. Use a boxed representation. float float_arg(Handle x) { union flt argx; argx.i = (int32_t)x->WordP()->Get(0).AsSigned(); return argx.fl; } Handle float_result(TaskData *mdTaskData, float x) { union flt argx; argx.fl = x; PolyObject *v = alloc(mdTaskData, 1, F_BYTE_OBJ); v->Set(0, PolyWord::FromSigned(argx.i)); return mdTaskData->saveVec.push(v); } #endif POLYEXTERNALSYMBOL double PolyFloatArbitraryPrecision(PolyWord arg) { return get_arbitrary_precision_as_real(arg); } // Convert a boxed real to a long precision int. POLYUNSIGNED PolyRealBoxedToLongInt(FirstArgument threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); double dx = real_arg(pushedArg); int64_t i = (int64_t)dx; Handle result = Make_arbitrary_precision(taskData, i); taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // RTS call for square-root. double PolyRealSqrt(double arg) { return sqrt(arg); } // RTS call for sine. double PolyRealSin(double arg) { return sin(arg); } // RTS call for cosine. double PolyRealCos(double arg) { return cos(arg); } // RTS call for arctan. double PolyRealArctan(double arg) { return atan(arg); } // RTS call for exp. double PolyRealExp(double arg) { return exp(arg); } // RTS call for ln. double PolyRealLog(double arg) { // Make sure the result conforms to the definition. // If the argument is a Nan each of the first two tests will fail. if (arg > 0.0) return log(arg); else if (arg == 0.0) // x may be +0.0 or -0.0 return negInf; // -infinity. else return notANumber; } // These were handled by the general dispatch function double PolyRealTan(double arg) { return tan(arg); } double PolyRealArcSin(double arg) { if (arg >= -1.0 && arg <= 1.0) return asin(arg); else return notANumber; } double PolyRealArcCos(double arg) { if (arg >= -1.0 && arg <= 1.0) return acos(arg); else return notANumber; } double PolyRealLog10(double arg) { // Make sure the result conforms to the definition. // If the argument is a Nan each of the first two tests will fail. if (arg > 0.0) return log10(arg); else if (arg == 0.0) // x may be +0.0 or -0.0 return negInf; // -infinity. else return notANumber; } double PolyRealSinh(double arg) { return sinh(arg); } double PolyRealCosh(double arg) { return cosh(arg); } double PolyRealTanh(double arg) { return tanh(arg); } double PolyRealFloor(double arg) { return floor(arg); } double PolyRealCeil(double arg) { return ceil(arg); } double PolyRealTrunc(double arg) { // Truncate towards zero if (arg >= 0.0) return floor(arg); else return ceil(arg); } double PolyRealRound(double arg) { // Round to nearest integral value. double drem = fmod(arg, 2.0); if (drem == 0.5 || drem == -1.5) // If the value was exactly positive even + 0.5 or // negative odd -0.5 round it down, otherwise round it up. return ceil(arg-0.5); else return floor(arg+0.5); } double PolyRealRem(double arg1, double arg2) { return fmod(arg1, arg2); } double PolyRealAtan2(double arg1, double arg2) { return atan2(arg1, arg2); } double PolyRealPow(double x, double y) { /* Some of the special cases are defined and don't seem to match the C pow function (at least as implemented in MS C). */ /* Maybe handle all this in ML? */ if (std::isnan(x)) { if (y == 0.0) return 1.0; else return notANumber; } else if (std::isnan(y)) return y; /* i.e. nan. */ else if (x == 0.0 && y < 0.0) { /* This case is not handled correctly in Solaris. It always returns -infinity. */ int iy = (int)floor(y); /* If x is -0.0 and y is an odd integer the result is -infinity. */ if (copysign(1.0, x) < 0.0 && (double)iy == y && (iy & 1)) return negInf; /* -infinity. */ else return posInf; /* +infinity. */ } return pow(x, y); } double PolyRealCopySign(double arg1, double arg2) { return copysign(arg1, arg2); } double PolyRealNextAfter(double arg1, double arg2) { return nextafter(arg1, arg2); } double PolyRealLdexp(double arg1, PolyWord arg2) { POLYSIGNED exponent = arg2.UnTagged(); #if (SIZEOF_POLYWORD > SIZEOF_INT) // We've already checked for arbitrary precision values where necessary and // for zero and non-finite mantissa. Check the exponent fits in an int. if (exponent > 2 * DBL_MAX_EXP) return copysign(INFINITY, arg1); if (exponent < -2 * DBL_MAX_EXP) return copysign(0.0, arg1); #endif return ldexp(arg1, (int)exponent); } // Return the normalised fraction and the exponent. POLYUNSIGNED PolyRealFrexp(FirstArgument threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); Handle result = 0; try { int exp = 0; // The value of exp is not always defined. Handle mantH = real_result(taskData, frexp(real_arg(pushedArg), &exp)); // Allocate a pair for the result result = alloc_and_save(taskData, 2); result->WordP()->Set(0, TAGGED(exp)); result->WordP()->Set(1, mantH->Word()); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // RTS call for square-root. float PolyRealFSqrt(float arg) { return sqrtf(arg); } // RTS call for sine. float PolyRealFSin(float arg) { return sinf(arg); } // RTS call for cosine. float PolyRealFCos(float arg) { return cosf(arg); } // RTS call for arctan. float PolyRealFArctan(float arg) { return atanf(arg); } // RTS call for exp. float PolyRealFExp(float arg) { return expf(arg); } // RTS call for ln. float PolyRealFLog(float arg) { // Make sure the result conforms to the definition. // If the argument is a Nan each of the first two tests will fail. if (arg > 0.0) return logf(arg); else if (arg == 0.0) // x may be +0.0 or -0.0 return negInfF; // -infinity. else return notANumberF; } float PolyRealFTan(float arg) { return tanf(arg); } float PolyRealFArcSin(float arg) { if (arg >= -1.0 && arg <= 1.0) return asinf(arg); else return notANumberF; } float PolyRealFArcCos(float arg) { if (arg >= -1.0 && arg <= 1.0) return acosf(arg); else return notANumberF; } float PolyRealFLog10(float arg) { // Make sure the result conforms to the definition. // If the argument is a Nan each of the first two tests will fail. if (arg > 0.0) return log10f(arg); else if (arg == 0.0) // x may be +0.0 or -0.0 return negInfF; // -infinity. else return notANumberF; } float PolyRealFSinh(float arg) { return sinhf(arg); } float PolyRealFCosh(float arg) { return coshf(arg); } float PolyRealFTanh(float arg) { return tanhf(arg); } float PolyRealFAtan2(float arg1, float arg2) { return atan2f(arg1, arg2); } float PolyRealFPow(float x, float y) { /* Some of the special cases are defined and don't seem to match the C pow function (at least as implemented in MS C). */ /* Maybe handle all this in ML? */ if (std::isnan(x)) { if (y == 0.0) return 1.0; else return notANumberF; } else if (std::isnan(y)) return y; /* i.e. nan. */ else if (x == 0.0 && y < 0.0) { /* This case is not handled correctly in Solaris. It always returns -infinity. */ int iy = (int)floorf(y); /* If x is -0.0 and y is an odd integer the result is -infinity. */ if (copysign(1.0, x) < 0.0 && (float)iy == y && (iy & 1)) return negInfF; /* -infinity. */ else return posInfF; /* +infinity. */ } return powf(x, y); } float PolyRealFFloor(float arg) { return floorf(arg); } float PolyRealFCeil(float arg) { return ceilf(arg); } float PolyRealFTrunc(float arg) { // Truncate towards zero if (arg >= 0.0) return floorf(arg); else return ceilf(arg); } float PolyRealFRound(float arg) { // Round to nearest integral value. float drem = fmodf(arg, 2.0); if (drem == 0.5 || drem == -1.5) // If the value was exactly positive even + 0.5 or // negative odd -0.5 round it down, otherwise round it up. return ceilf(arg - 0.5f); else return floorf(arg + 0.5f); } float PolyRealFRem(float arg1, float arg2) { return fmodf(arg1, arg2); } float PolyRealFCopySign(float arg1, float arg2) { return copysignf(arg1, arg2); } float PolyRealFNextAfter(float arg1, float arg2) { return nextafterf(arg1, arg2); } /* CALL_IO1(Real_conv, REF, NOIND) */ Handle Real_convc(TaskData *mdTaskData, Handle str) /* string to real */ { double result; int i; char *finish; TempCString string_buffer(Poly_string_to_C_alloc(str->Word())); /* Scan the string turning '~' into '-' */ for(i = 0; string_buffer[i] != '\0'; i ++) { if (string_buffer[i] == '~') string_buffer[i] = '-'; } /* Now convert it */ #ifdef HAVE_STRTOD result = strtod(string_buffer, &finish); #else result = poly_strtod(string_buffer, &finish); #endif // We no longer detect overflow and underflow and instead return // (signed) zeros for underflow and (signed) infinities for overflow. if (*finish != '\0') raise_exception_string(mdTaskData, EXC_conversion, ""); return real_result(mdTaskData, result); }/* Real_conv */ // Convert a string to a boxed real. This should really return an unboxed real. POLYUNSIGNED PolyRealBoxedFromString(FirstArgument threadId, PolyWord str) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedString = taskData->saveVec.push(str); Handle result = 0; try { result = Real_convc(taskData, pushedString); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } static double real_arg1(Handle x) { union db r_arg_x; for(unsigned i = 0; i < DBLE; i++) { r_arg_x.words[i] = DEREFHANDLE(x)->Get(0).AsObjPtr()->Get(i).AsUnsigned(); } return r_arg_x.dble; } static double real_arg2(Handle x) { union db r_arg_x; for(unsigned i = 0; i < DBLE; i++) { r_arg_x.words[i] = DEREFHANDLE(x)->Get(1).AsObjPtr()->Get(i).AsUnsigned(); } return r_arg_x.dble; } static Handle powerOf(TaskData *mdTaskData, Handle args) { double x = real_arg1(args), y = real_arg2(args); return real_result(mdTaskData, PolyRealPow(x, y)); } #if defined(__SOFTFP__) // soft-float lacks proper rounding mode support // While some systems will support fegetround/fesetround, it will have no // effect on the actual rounding performed, as the software implementation only // ever rounds to nearest. int getrounding() { return POLY_ROUND_TONEAREST; } int setrounding(int rounding) { switch (rounding) { case POLY_ROUND_TONEAREST: return 0; // The only mode supported } return -1; // Error - unsupported } // It would be nice to be able to use autoconf to test for these as functions // but they are frequently inlined #elif defined(HAVE_FENV_H) // C99 version. This is becoming the most common. int getrounding() { switch (fegetround()) { case FE_TONEAREST: return POLY_ROUND_TONEAREST; #ifndef HOSTARCHITECTURE_SH case FE_DOWNWARD: return POLY_ROUND_DOWNWARD; case FE_UPWARD: return POLY_ROUND_UPWARD; #endif case FE_TOWARDZERO: return POLY_ROUND_TOZERO; } return POLY_ROUND_TONEAREST; } int setrounding(int rounding) { switch (rounding) { case POLY_ROUND_TONEAREST: fesetround(FE_TONEAREST); return 0; // Choose nearest #ifndef HOSTARCHITECTURE_SH case POLY_ROUND_DOWNWARD: fesetround(FE_DOWNWARD); return 0; // Towards negative infinity case POLY_ROUND_UPWARD: fesetround(FE_UPWARD); return 0; // Towards positive infinity #endif case POLY_ROUND_TOZERO: fesetround(FE_TOWARDZERO); return 0; // Truncate towards zero default: return -1; } } #elif (defined(HAVE_IEEEFP_H) && ! defined(__CYGWIN__)) // Older FreeBSD. Cygwin has the ieeefp.h header but not the functions! int getrounding() { switch (fpgetround()) { case FP_RN: return POLY_ROUND_TONEAREST; case FP_RM: return POLY_ROUND_DOWNWARD; case FP_RP: return POLY_ROUND_UPWARD; case FP_RZ: return POLY_ROUND_TOZERO; default: return POLY_ROUND_TONEAREST; /* Shouldn't happen. */ } } int setrounding(int rounding) { switch (rounding) { case POLY_ROUND_TONEAREST: fpsetround(FP_RN); break; /* Choose nearest */ case POLY_ROUND_DOWNWARD: fpsetround(FP_RM); break; /* Towards negative infinity */ case POLY_ROUND_UPWARD: fpsetround(FP_RP); break; /* Towards positive infinity */ case POLY_ROUND_TOZERO: fpsetround(FP_RZ); break; /* Truncate towards zero */ } return 0 } #elif defined(_WIN32) // Windows version int getrounding() { switch (_controlfp(0,0) & _MCW_RC) { case _RC_NEAR: return POLY_ROUND_TONEAREST; case _RC_DOWN: return POLY_ROUND_DOWNWARD; case _RC_UP: return POLY_ROUND_UPWARD; case _RC_CHOP: return POLY_ROUND_TOZERO; } return POLY_ROUND_TONEAREST; } int setrounding(int rounding) { switch (rounding) { case POLY_ROUND_TONEAREST: _controlfp(_RC_NEAR, _MCW_RC); return 0; // Choose nearest case POLY_ROUND_DOWNWARD: _controlfp(_RC_DOWN, _MCW_RC); return 0; // Towards negative infinity case POLY_ROUND_UPWARD: _controlfp(_RC_UP, _MCW_RC); return 0; // Towards positive infinity case POLY_ROUND_TOZERO: _controlfp(_RC_CHOP, _MCW_RC); return 0; // Truncate towards zero } return -1; } #elif defined(_FPU_GETCW) && defined(_FPU_SETCW) // Older Linux version int getrounding() { fpu_control_t ctrl; _FPU_GETCW(ctrl); switch (ctrl & _FPU_RC_ZERO) { case _FPU_RC_NEAREST: return POLY_ROUND_TONEAREST; case _FPU_RC_DOWN: return POLY_ROUND_DOWNWARD; case _FPU_RC_UP: return POLY_ROUND_UPWARD; case _FPU_RC_ZERO: return POLY_ROUND_TOZERO; } return POLY_ROUND_TONEAREST; /* Never reached but this avoids warning message. */ } int setrounding(int rounding) { fpu_control_t ctrl; _FPU_GETCW(ctrl); ctrl &= ~_FPU_RC_ZERO; /* Mask off any existing rounding. */ switch (rounding) { case POLY_ROUND_TONEAREST: ctrl |= _FPU_RC_NEAREST; case POLY_ROUND_DOWNWARD: ctrl |= _FPU_RC_DOWN; case POLY_ROUND_UPWARD: ctrl |= _FPU_RC_UP; case POLY_ROUND_TOZERO: ctrl |= _FPU_RC_ZERO; } _FPU_SETCW(ctrl); return 0; } #else // Give up. Assume that we only support TO_NEAREST int getrounding() { return POLY_ROUND_TONEAREST; } int setrounding(int rounding) { if (rounding == POLY_ROUND_TONEAREST) return 0; else return -1; } #endif POLYSIGNED PolyGetRoundingMode(PolyWord) { // Get the rounding and turn the result into a tagged integer. return TAGGED(getrounding()).AsSigned(); } POLYSIGNED PolySetRoundingMode(PolyWord arg) { return TAGGED(setrounding((int)arg.UnTagged())).AsSigned(); } Handle Real_strc(TaskData *mdTaskData, Handle hDigits, Handle hMode, Handle arg) { double dx = real_arg(arg); int decpt, sign; int mode = get_C_int(mdTaskData, hMode->Word()); int digits = get_C_int(mdTaskData, hDigits->Word()); /* Compute the shortest string which gives the required value. */ /* */ char *chars = poly_dtoa(dx, mode, digits, &decpt, &sign, NULL); /* We have to be careful in case an allocation causes a garbage collection. */ PolyWord pStr = C_string_to_Poly(mdTaskData, chars); poly_freedtoa(chars); Handle ppStr = mdTaskData->saveVec.push(pStr); /* Allocate a triple for the results. */ PolyObject *result = alloc(mdTaskData, 3); result->Set(0, ppStr->Word()); result->Set(1, TAGGED(decpt)); result->Set(2, TAGGED(sign)); return mdTaskData->saveVec.push(result); } // Convert boxed real to string. This should be changed to use an unboxed real argument. POLYUNSIGNED PolyRealBoxedToString(FirstArgument threadId, PolyWord arg, PolyWord mode, PolyWord digits) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); Handle pushedMode = taskData->saveVec.push(mode); Handle pushedDigits = taskData->saveVec.push(digits); Handle result = 0; try { result = Real_strc(taskData, pushedDigits, pushedMode, pushedArg); } catch (...) { } // Can this raise an exception? taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // This used to be used for all the functions. It now only contains calls // used when the Real structure is defined to get the values of constants. // It also still has some legacy functions. static Handle Real_dispatchc(TaskData *mdTaskData, Handle args, Handle code) { unsigned c = get_C_unsigned(mdTaskData, code->Word()); switch (c) { case 3: /* Legacy: atan2 */ return real_result(mdTaskData, atan2(real_arg1(args), real_arg2(args))); case 4: /* Legacy: pow */ return powerOf(mdTaskData, args); /* Floating point representation queries. */ #ifdef _DBL_RADIX case 11: /* Value of radix */ return mdTaskData->saveVec.push(TAGGED(_DBL_RADIX)); #else case 11: /* Value of radix */ return mdTaskData->saveVec.push(TAGGED(FLT_RADIX)); #endif case 12: /* Value of precision */ return mdTaskData->saveVec.push(TAGGED(DBL_MANT_DIG)); case 13: /* Maximum number */ return real_result(mdTaskData, DBL_MAX); case 14: /* Minimum normalised number. */ return real_result(mdTaskData, DBL_MIN); case 15: // Minimum number. #ifdef DBL_TRUE_MIN return real_result(mdTaskData, DBL_TRUE_MIN); #else return real_result(mdTaskData, DBL_MIN*DBL_EPSILON); #endif - case 17: /* Legacy: Get sign bit. Now implemented in ML. */ - return mdTaskData->saveVec.push(copysign(1.0, real_arg(args)) < 0.0 ? TAGGED(1) : TAGGED(0)); - case 18: /* Legacy: Copy sign. */ - return real_result(mdTaskData, copysign(real_arg1(args), real_arg2(args))); - case 23: /* Legacy: Compute ldexp */ - { - int exp = get_C_int(mdTaskData, DEREFHANDLE(args)->Get(1)); - return real_result(mdTaskData, ldexp(real_arg1(args), exp)); - } - case 24: /* Legacy: Get mantissa. */ - { - int exp; - return real_result(mdTaskData, frexp(real_arg(args), &exp)); - } - case 25: /* Legacy: Get exponent. */ - { - int exp; - (void)frexp(real_arg(args), &exp); - return mdTaskData->saveVec.push(TAGGED(exp)); - } - case 26: /* Legacy: nextafter */ return real_result(mdTaskData, nextafter(real_arg1(args), real_arg2(args))); - // Constants for float (Real32.real) case 30: /* Value of radix */ return mdTaskData->saveVec.push(TAGGED(FLT_RADIX)); case 31: /* Value of precision */ return mdTaskData->saveVec.push(TAGGED(FLT_MANT_DIG)); case 32: /* Maximum number */ return float_result(mdTaskData, FLT_MAX); case 33: /* Minimum normalised number. */ return float_result(mdTaskData, FLT_MIN); case 34: // Minimum number. #ifdef FLT_TRUE_MIN return float_result(mdTaskData, FLT_TRUE_MIN); #else return float_result(mdTaskData, FLT_MIN*FLT_EPSILON); #endif default: { char msg[100]; sprintf(msg, "Unknown real arithmetic function: %d", c); raise_exception_string(mdTaskData, EXC_Fail, msg); return 0; } } } POLYUNSIGNED PolyRealSize(PolyWord) { // Return the number of bytes for a real. This is used in PackRealBig/Little. return TAGGED(sizeof(double)).AsUnsigned(); } POLYUNSIGNED PolyRealGeneral(FirstArgument threadId, PolyWord code, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedCode = taskData->saveVec.push(code); Handle pushedArg = taskData->saveVec.push(arg); Handle result = 0; try { result = Real_dispatchc(taskData, pushedArg, pushedCode); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } struct _entrypts realsEPT[] = { { "PolyRealBoxedToString", (polyRTSFunction)&PolyRealBoxedToString}, { "PolyRealGeneral", (polyRTSFunction)&PolyRealGeneral}, { "PolyRealBoxedFromString", (polyRTSFunction)&PolyRealBoxedFromString}, { "PolyRealBoxedToLongInt", (polyRTSFunction)&PolyRealBoxedToLongInt}, { "PolyRealSqrt", (polyRTSFunction)&PolyRealSqrt}, { "PolyRealSin", (polyRTSFunction)&PolyRealSin}, { "PolyRealCos", (polyRTSFunction)&PolyRealCos}, { "PolyRealArctan", (polyRTSFunction)&PolyRealArctan}, { "PolyRealExp", (polyRTSFunction)&PolyRealExp}, { "PolyRealLog", (polyRTSFunction)&PolyRealLog}, { "PolyRealTan", (polyRTSFunction)&PolyRealTan}, { "PolyRealArcSin", (polyRTSFunction)&PolyRealArcSin}, { "PolyRealArcCos", (polyRTSFunction)&PolyRealArcCos}, { "PolyRealLog10", (polyRTSFunction)&PolyRealLog10}, { "PolyRealSinh", (polyRTSFunction)&PolyRealSinh}, { "PolyRealCosh", (polyRTSFunction)&PolyRealCosh}, { "PolyRealTanh", (polyRTSFunction)&PolyRealTanh}, { "PolyRealFloor", (polyRTSFunction)&PolyRealFloor}, { "PolyRealCeil", (polyRTSFunction)&PolyRealCeil}, { "PolyRealTrunc", (polyRTSFunction)&PolyRealTrunc}, { "PolyRealRound", (polyRTSFunction)&PolyRealRound}, { "PolyRealRem", (polyRTSFunction)&PolyRealRem }, { "PolyFloatArbitraryPrecision", (polyRTSFunction)&PolyFloatArbitraryPrecision}, { "PolyGetRoundingMode", (polyRTSFunction)&PolyGetRoundingMode}, { "PolySetRoundingMode", (polyRTSFunction)&PolySetRoundingMode}, { "PolyRealSize", (polyRTSFunction)&PolyRealSize}, { "PolyRealAtan2", (polyRTSFunction)&PolyRealAtan2 }, { "PolyRealPow", (polyRTSFunction)&PolyRealPow }, { "PolyRealCopySign", (polyRTSFunction)&PolyRealCopySign }, { "PolyRealNextAfter", (polyRTSFunction)&PolyRealNextAfter }, { "PolyRealLdexp", (polyRTSFunction)&PolyRealLdexp }, { "PolyRealFrexp", (polyRTSFunction)&PolyRealFrexp }, { "PolyRealFSqrt", (polyRTSFunction)&PolyRealFSqrt }, { "PolyRealFSin", (polyRTSFunction)&PolyRealFSin }, { "PolyRealFCos", (polyRTSFunction)&PolyRealFCos }, { "PolyRealFArctan", (polyRTSFunction)&PolyRealFArctan }, { "PolyRealFExp", (polyRTSFunction)&PolyRealFExp }, { "PolyRealFLog", (polyRTSFunction)&PolyRealFLog }, { "PolyRealFTan", (polyRTSFunction)&PolyRealFTan }, { "PolyRealFArcSin", (polyRTSFunction)&PolyRealFArcSin }, { "PolyRealFArcCos", (polyRTSFunction)&PolyRealFArcCos }, { "PolyRealFLog10", (polyRTSFunction)&PolyRealFLog10 }, { "PolyRealFSinh", (polyRTSFunction)&PolyRealFSinh }, { "PolyRealFCosh", (polyRTSFunction)&PolyRealFCosh }, { "PolyRealFTanh", (polyRTSFunction)&PolyRealFTanh }, { "PolyRealFAtan2", (polyRTSFunction)&PolyRealFAtan2 }, { "PolyRealFPow", (polyRTSFunction)&PolyRealFPow }, { "PolyRealFCopySign", (polyRTSFunction)&PolyRealFCopySign }, { "PolyRealFFloor", (polyRTSFunction)&PolyRealFFloor }, { "PolyRealFCeil", (polyRTSFunction)&PolyRealFCeil }, { "PolyRealFTrunc", (polyRTSFunction)&PolyRealFTrunc }, { "PolyRealFRound", (polyRTSFunction)&PolyRealFRound }, { "PolyRealFRem", (polyRTSFunction)&PolyRealFRem }, { "PolyRealFNextAfter", (polyRTSFunction)&PolyRealFNextAfter }, { NULL, NULL} // End of list. }; class RealArithmetic: public RtsModule { public: virtual void Init(void); }; // Declare this. It will be automatically added to the table. static RealArithmetic realModule; void RealArithmetic::Init(void) { /* Some compilers object to overflow in constants so we compute the values here. */ #if (HAVE_DECL_FPSETMASK && ! defined(__CYGWIN__)) /* In FreeBSD 3.4 at least, we sometimes get floating point exceptions if we don't clear the mask. Maybe need to do this on other platforms as well just to be sure. */ // N.B. fpsetmask is defined in the headers on Cygwin but there's no function! fpsetmask(0); #endif // NAN and INFINITY are defined in GCC but not in Visual C++. #if (defined(INFINITY)) posInf = INFINITY; negInf = -(INFINITY); posInfF = INFINITY; negInfF = -(INFINITY); #else { double zero = 0.0; posInf = 1.0 / zero; negInf = -1.0 / zero; float zeroF = 0.0; posInfF = 1.0 / zeroF; negInfF = -1.0 / zeroF; } #endif #if (defined(NAN)) notANumber = NAN; #else { double zero = 0.0; notANumber = zero / zero; float zeroF = 0.0; notANumberF = zeroF / zeroF; } #endif // Make sure this is a positive NaN since we return it from "abs". // "Positive" in this context is copysign(1.0, x) > 0.0 because that's // how we test the sign so we test it first and then try to change the // sign if it's wrong. if (copysign(1.0, notANumber) < 0) notANumber = copysign(notANumber, 1.0); if (copysignf(1.0, notANumberF) < 0) notANumberF = copysignf(notANumberF, 1.0); } diff --git a/libpolyml/savestate.cpp b/libpolyml/savestate.cpp index 19052c77..8cc1c069 100644 --- a/libpolyml/savestate.cpp +++ b/libpolyml/savestate.cpp @@ -1,2212 +1,2211 @@ /* Title: savestate.cpp - Save and Load state Copyright (c) 2007, 2015, 2017-19 David C.J. Matthews This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifdef HAVE_CONFIG_H #include "config.h" #elif defined(_WIN32) #include "winconfig.h" #else #error "No configuration file" #endif #ifdef HAVE_STDIO_H #include #endif #ifdef HAVE_WINDOWS_H #include // For MAX_PATH #endif #ifdef HAVE_SYS_PARAM_H #include // For MAX_PATH #endif #ifdef HAVE_ERRNO_H #include #endif #ifdef HAVE_TIME_H #include #endif #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_STAT_H #include #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_ASSERT_H #include #define ASSERT(x) assert(x) #else #define ASSERT(x) #endif #if (defined(_WIN32) && ! defined(__CYGWIN__)) #include #define ERRORNUMBER _doserrno #define NOMEMORY ERROR_NOT_ENOUGH_MEMORY #else typedef char TCHAR; #define _T(x) x #define _tfopen fopen #define _tcscpy strcpy #define _tcsdup strdup #define _tcslen strlen #define _fputtc fputc #define _fputts fputs #ifndef lstrcmpi #define lstrcmpi strcasecmp #endif #define ERRORNUMBER errno #define NOMEMORY ENOMEM #endif #include "globals.h" #include "savestate.h" #include "processes.h" #include "run_time.h" #include "polystring.h" #include "scanaddrs.h" #include "arb.h" #include "memmgr.h" #include "mpoly.h" // For exportTimeStamp #include "exporter.h" // For CopyScan #include "machine_dep.h" #include "osmem.h" #include "gc.h" // For FullGC. #include "timing.h" #include "rtsentry.h" #include "check_objects.h" #include "rtsentry.h" #include "../polyexports.h" // For InitHeaderFromExport #include "version.h" // For InitHeaderFromExport #ifdef _MSC_VER // Don't tell me about ISO C++ changes. #pragma warning(disable:4996) #endif extern "C" { POLYEXTERNALSYMBOL POLYUNSIGNED PolySaveState(PolyObject *threadId, PolyWord fileName, PolyWord depth); POLYEXTERNALSYMBOL POLYUNSIGNED PolyLoadState(PolyObject *threadId, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyShowHierarchy(PolyObject *threadId); POLYEXTERNALSYMBOL POLYUNSIGNED PolyRenameParent(PolyObject *threadId, PolyWord childName, PolyWord parentName); POLYEXTERNALSYMBOL POLYUNSIGNED PolyShowParent(PolyObject *threadId, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyStoreModule(PolyObject *threadId, PolyWord name, PolyWord contents); POLYEXTERNALSYMBOL POLYUNSIGNED PolyLoadModule(PolyObject *threadId, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyLoadHierarchy(PolyObject *threadId, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyGetModuleDirectory(PolyObject *threadId); } // Helper class to close files on exit. class AutoClose { public: AutoClose(FILE *f = 0): m_file(f) {} ~AutoClose() { if (m_file) ::fclose(m_file); } operator FILE*() { return m_file; } FILE* operator = (FILE* p) { return (m_file = p); } private: FILE *m_file; }; // This is probably generally useful so may be moved into // a general header file. template class AutoFree { public: AutoFree(BASE p = 0): m_value(p) {} ~AutoFree() { free(m_value); } // Automatic conversions to the base type. operator BASE() { return m_value; } BASE operator = (BASE p) { return (m_value = p); } private: BASE m_value; }; /* * Structure definitions for the saved state files. */ #define SAVEDSTATESIGNATURE "POLYSAVE" #define SAVEDSTATEVERSION 2 // File header for a saved state file. This appears as the first entry // in the file. typedef struct _savedStateHeader { // These entries are primarily to check that we have a valid // saved state file before we try to interpret anything else. char headerSignature[8]; // Should contain SAVEDSTATESIGNATURE unsigned headerVersion; // Should contain SAVEDSTATEVERSION unsigned headerLength; // Number of bytes in the header unsigned segmentDescrLength; // Number of bytes in a descriptor // These entries contain the real data. off_t segmentDescr; // Position of segment descriptor table unsigned segmentDescrCount; // Number of segment descriptors in the table off_t stringTable; // Pointer to the string table (zero if none) size_t stringTableSize; // Size of string table unsigned parentNameEntry; // Position of parent name in string table (0 if top) time_t timeStamp; // The time stamp for this file. time_t parentTimeStamp; // The time stamp for the parent. void *originalBaseAddr; // Original base address (32-in-64 only) } SavedStateHeader; // Entry for segment table. This describes the segments on the disc that // need to be loaded into memory. typedef struct _savedStateSegmentDescr { off_t segmentData; // Position of the segment data size_t segmentSize; // Size of the segment data off_t relocations; // Position of the relocation table unsigned relocationCount; // Number of entries in relocation table unsigned relocationSize; // Size of a relocation entry unsigned segmentFlags; // Segment flags (see SSF_ values) unsigned segmentIndex; // The index of this segment or the segment it overwrites void *originalAddress; // The base address when the segment was written. } SavedStateSegmentDescr; #define SSF_WRITABLE 1 // The segment contains mutable data #define SSF_OVERWRITE 2 // The segment overwrites the data (mutable) in a parent. #define SSF_NOOVERWRITE 4 // The segment must not be further overwritten #define SSF_BYTES 8 // The segment contains only byte data #define SSF_CODE 16 // The segment contains only code typedef struct _relocationEntry { // Each entry indicates a location that has to be set to an address. // The location to be set is determined by adding "relocAddress" to the base address of // this segment (the one to which these relocations apply) and the value to store // by adding "targetAddress" to the base address of the segment indicated by "targetSegment". POLYUNSIGNED relocAddress; // The (byte) offset in this segment that we will set POLYUNSIGNED targetAddress; // The value to add to the base of the destination segment unsigned targetSegment; // The base segment. 0 is IO segment. ScanRelocationKind relKind; // The kind of relocation (processor dependent). } RelocationEntry; #define SAVE(x) taskData->saveVec.push(x) /* * Hierarchy table: contains information about last loaded or saved state. */ // Pointer to list of files loaded in last load. // There's no need for a lock since the update is only made when all // the ML threads have stopped. class HierarchyTable { public: HierarchyTable(const TCHAR *file, time_t time): fileName(_tcsdup(file)), timeStamp(time) { } AutoFree fileName; time_t timeStamp; }; HierarchyTable **hierarchyTable; static unsigned hierarchyDepth; static bool AddHierarchyEntry(const TCHAR *fileName, time_t timeStamp) { // Add an entry to the hierarchy table for this file. HierarchyTable *newEntry = new HierarchyTable(fileName, timeStamp); if (newEntry == 0) return false; HierarchyTable **newTable = (HierarchyTable **)realloc(hierarchyTable, sizeof(HierarchyTable *)*(hierarchyDepth+1)); if (newTable == 0) return false; hierarchyTable = newTable; hierarchyTable[hierarchyDepth++] = newEntry; return true; } // Test whether we're overwriting a parent of ourself. #if (defined(_WIN32) || defined(__CYGWIN__)) static bool sameFile(const TCHAR *x, const TCHAR *y) { HANDLE hXFile = INVALID_HANDLE_VALUE, hYFile = INVALID_HANDLE_VALUE; bool result = false; hXFile = CreateFile(x, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hXFile == INVALID_HANDLE_VALUE) goto closeAndExit; hYFile = CreateFile(y, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hYFile == INVALID_HANDLE_VALUE) goto closeAndExit; BY_HANDLE_FILE_INFORMATION fileInfoX, fileInfoY; if (! GetFileInformationByHandle(hXFile, &fileInfoX)) goto closeAndExit; if (! GetFileInformationByHandle(hYFile, &fileInfoY)) goto closeAndExit; result = fileInfoX.dwVolumeSerialNumber == fileInfoY.dwVolumeSerialNumber && fileInfoX.nFileIndexLow == fileInfoY.nFileIndexLow && fileInfoX.nFileIndexHigh == fileInfoY.nFileIndexHigh; closeAndExit: if (hXFile != INVALID_HANDLE_VALUE) CloseHandle(hXFile); if (hYFile != INVALID_HANDLE_VALUE) CloseHandle(hYFile); return result; } #else static bool sameFile(const char *x, const char *y) { struct stat xStat, yStat; // If either file does not exist that's fine. if (stat(x, &xStat) != 0 || stat(y, &yStat) != 0) return false; return (xStat.st_dev == yStat.st_dev && xStat.st_ino == yStat.st_ino); } #endif /* * Saving state. */ // This class is used to create the relocations. It uses Exporter // for this but this may perhaps be too heavyweight. class SaveStateExport: public Exporter, public ScanAddress { public: SaveStateExport(unsigned int h=0): Exporter(h), relocationCount(0) {} public: virtual void exportStore(void) {} // Not used. private: // ScanAddress overrides virtual void ScanConstant(PolyObject *base, byte *addrOfConst, ScanRelocationKind code); // At the moment we should only get calls to ScanConstant. virtual PolyObject *ScanObjectAddress(PolyObject *base) { return base; } protected: void setRelocationAddress(void *p, POLYUNSIGNED *reloc); PolyWord createRelocation(PolyWord p, void *relocAddr); unsigned relocationCount; friend class SaveRequest; }; // Generate the address relative to the start of the segment. void SaveStateExport::setRelocationAddress(void *p, POLYUNSIGNED *reloc) { unsigned area = findArea(p); POLYUNSIGNED offset = (POLYUNSIGNED)((char*)p - (char*)memTable[area].mtOriginalAddr); *reloc = offset; } // Create a relocation entry for an address at a given location. PolyWord SaveStateExport::createRelocation(PolyWord p, void *relocAddr) { RelocationEntry reloc; // Set the offset within the section we're scanning. setRelocationAddress(relocAddr, &reloc.relocAddress); void *addr = p.AsAddress(); unsigned addrArea = findArea(addr); reloc.targetAddress = (POLYUNSIGNED)((char*)addr - (char*)memTable[addrArea].mtOriginalAddr); reloc.targetSegment = (unsigned)memTable[addrArea].mtIndex; reloc.relKind = PROCESS_RELOC_DIRECT; fwrite(&reloc, sizeof(reloc), 1, exportFile); relocationCount++; return p; // Don't change the contents } /* This is called for each constant within the code. Print a relocation entry for the word and return a value that means that the offset is saved in original word. */ void SaveStateExport::ScanConstant(PolyObject *base, byte *addr, ScanRelocationKind code) { PolyObject *p = GetConstantValue(addr, code); if (p == 0) return; void *a = p; unsigned aArea = findArea(a); // We don't need a relocation if this is relative to the current segment // since the relative address will already be right. if (code == PROCESS_RELOC_I386RELATIVE && aArea == findArea(addr)) return; // Set the value at the address to the offset relative to the symbol. RelocationEntry reloc; setRelocationAddress(addr, &reloc.relocAddress); reloc.targetAddress = (POLYUNSIGNED)((char*)a - (char*)memTable[aArea].mtOriginalAddr); reloc.targetSegment = (unsigned)memTable[aArea].mtIndex; reloc.relKind = code; fwrite(&reloc, sizeof(reloc), 1, exportFile); relocationCount++; } // Request to the main thread to save data. class SaveRequest: public MainThreadRequest { public: SaveRequest(const TCHAR *name, unsigned h): MainThreadRequest(MTP_SAVESTATE), fileName(name), newHierarchy(h), errorMessage(0), errCode(0) {} virtual void Perform(); const TCHAR *fileName; unsigned newHierarchy; const char *errorMessage; int errCode; }; // This class is used to update references to objects that have moved. If // we have copied an object into the area to be exported we may still have references // to it from the stack or from RTS data structures. We have to ensure that these // are updated. // This is very similar to ProcessFixupAddress in sharedata.cpp class SaveFixupAddress: public ScanAddress { protected: virtual POLYUNSIGNED ScanAddressAt(PolyWord *pt); virtual POLYUNSIGNED ScanCodeAddressAt(PolyObject **pt) { *pt = ScanObjectAddress(*pt); return 0; } virtual PolyObject *ScanObjectAddress(PolyObject *base); public: void ScanCodeSpace(CodeSpace *space); }; POLYUNSIGNED SaveFixupAddress::ScanAddressAt(PolyWord *pt) { PolyWord val = *pt; if (val.IsDataPtr() && val != PolyWord::FromUnsigned(0)) *pt = ScanObjectAddress(val.AsObjPtr()); return 0; } // Returns the new address if the argument is the address of an object that // has moved, otherwise returns the original. PolyObject *SaveFixupAddress::ScanObjectAddress(PolyObject *obj) { if (obj->ContainsForwardingPtr()) // tombstone is a pointer to a moved object { #ifdef POLYML32IN64 MemSpace *space = gMem.SpaceForAddress((PolyWord*)obj - 1); PolyObject *newp; if (space->isCode) newp = (PolyObject*)(globalCodeBase + ((obj->LengthWord() & ~_OBJ_TOMBSTONE_BIT) << 1)); else newp = obj->GetForwardingPtr(); #else PolyObject *newp = obj->GetForwardingPtr(); #endif ASSERT (newp->ContainsNormalLengthWord()); return newp; } ASSERT (obj->ContainsNormalLengthWord()); // object is not moved return obj; } // Fix up addresses in the code area. Unlike ScanAddressesInRegion this updates // cells that have been moved. We need to do that because we may still have // return addresses into those cells and we don't move return addresses. We // do want the code to see updated constant addresses. void SaveFixupAddress::ScanCodeSpace(CodeSpace *space) { for (PolyWord *pt = space->bottom; pt < space->top; ) { pt++; PolyObject *obj = (PolyObject*)pt; #ifdef POLYML32IN64 PolyObject *dest = obj; while (dest->ContainsForwardingPtr()) { MemSpace *space = gMem.SpaceForAddress((PolyWord*)dest - 1); if (space->isCode) dest = (PolyObject*)(globalCodeBase + ((dest->LengthWord() & ~_OBJ_TOMBSTONE_BIT) << 1)); else dest = dest->GetForwardingPtr(); } #else PolyObject *dest = obj->FollowForwardingChain(); #endif POLYUNSIGNED length = dest->Length(); if (length != 0) ScanAddressesInObject(obj, dest->LengthWord()); pt += length; } } // Called by the root thread to actually save the state and write the file. void SaveRequest::Perform() { if (debugOptions & DEBUG_SAVING) Log("SAVE: Beginning saving state.\n"); // Check that we aren't overwriting our own parent. for (unsigned q = 0; q < newHierarchy-1; q++) { if (sameFile(hierarchyTable[q]->fileName, fileName)) { errorMessage = "File being saved is used as a parent of this file"; errCode = 0; if (debugOptions & DEBUG_SAVING) Log("SAVE: File being saved is used as a parent of this file.\n"); return; } } SaveStateExport exports; // Open the file. This could quite reasonably fail if the path is wrong. exports.exportFile = _tfopen(fileName, _T("wb")); if (exports.exportFile == NULL) { errorMessage = "Cannot open save file"; errCode = ERRORNUMBER; if (debugOptions & DEBUG_SAVING) Log("SAVE: Cannot open save file.\n"); return; } // Scan over the permanent mutable area copying all reachable data that is // not in a lower hierarchy into new permanent segments. CopyScan copyScan(newHierarchy); copyScan.initialise(false); bool success = true; try { for (std::vector::iterator i = gMem.pSpaces.begin(); i < gMem.pSpaces.end(); i++) { PermanentMemSpace *space = *i; if (space->isMutable && !space->noOverwrite && !space->byteOnly) { if (debugOptions & DEBUG_SAVING) Log("SAVE: Scanning permanent mutable area %p allocated at %p size %lu\n", space, space->bottom, space->spaceSize()); copyScan.ScanAddressesInRegion(space->bottom, space->top); } } } catch (MemoryException &) { success = false; if (debugOptions & DEBUG_SAVING) Log("SAVE: Scan of permanent mutable area raised memory exception.\n"); } // Copy the areas into the export object. Make sufficient space for // the largest possible number of entries. exports.memTable = new memoryTableEntry[gMem.eSpaces.size()+gMem.pSpaces.size()+1]; unsigned memTableCount = 0; // Permanent spaces at higher level. These have to have entries although // only the mutable entries will be written. for (std::vector::iterator i = gMem.pSpaces.begin(); i < gMem.pSpaces.end(); i++) { PermanentMemSpace *space = *i; if (space->hierarchy < newHierarchy) { memoryTableEntry *entry = &exports.memTable[memTableCount++]; entry->mtOriginalAddr = entry->mtCurrentAddr = space->bottom; entry->mtLength = (space->topPointer-space->bottom)*sizeof(PolyWord); entry->mtIndex = space->index; entry->mtFlags = 0; if (space->isMutable) { entry->mtFlags |= MTF_WRITEABLE; if (space->noOverwrite) entry->mtFlags |= MTF_NO_OVERWRITE; if (space->byteOnly) entry->mtFlags |= MTF_BYTES; } if (space->isCode) entry->mtFlags |= MTF_EXECUTABLE; } } unsigned permanentEntries = memTableCount; // Remember where new entries start. // Newly created spaces. for (std::vector::iterator i = gMem.eSpaces.begin(); i < gMem.eSpaces.end(); i++) { memoryTableEntry *entry = &exports.memTable[memTableCount++]; PermanentMemSpace *space = *i; entry->mtOriginalAddr = entry->mtCurrentAddr = space->bottom; entry->mtLength = (space->topPointer-space->bottom)*sizeof(PolyWord); entry->mtIndex = space->index; entry->mtFlags = 0; if (space->isMutable) { entry->mtFlags |= MTF_WRITEABLE; if (space->noOverwrite) entry->mtFlags |= MTF_NO_OVERWRITE; if (space->byteOnly) entry->mtFlags |= MTF_BYTES; } if (space->isCode) entry->mtFlags |= MTF_EXECUTABLE; } exports.memTableEntries = memTableCount; if (debugOptions & DEBUG_SAVING) Log("SAVE: Updating references to moved objects.\n"); // Update references to moved objects. SaveFixupAddress fixup; for (std::vector::iterator i = gMem.lSpaces.begin(); i < gMem.lSpaces.end(); i++) { LocalMemSpace *space = *i; fixup.ScanAddressesInRegion(space->bottom, space->lowerAllocPtr); fixup.ScanAddressesInRegion(space->upperAllocPtr, space->top); } for (std::vector::iterator i = gMem.cSpaces.begin(); i < gMem.cSpaces.end(); i++) fixup.ScanCodeSpace(*i); GCModules(&fixup); // Restore the length words in the code areas. // Although we've updated any pointers to the start of the code we could have return addresses // pointing to the original code. GCModules updates the stack but doesn't update return addresses. for (std::vector::iterator i = gMem.cSpaces.begin(); i < gMem.cSpaces.end(); i++) { CodeSpace *space = *i; for (PolyWord *pt = space->bottom; pt < space->top; ) { pt++; PolyObject *obj = (PolyObject*)pt; if (obj->ContainsForwardingPtr()) { #ifdef POLYML32IN64 PolyObject *forwardedTo = obj; while (forwardedTo->ContainsForwardingPtr()) forwardedTo = (PolyObject*)(globalCodeBase + ((forwardedTo->LengthWord() & ~_OBJ_TOMBSTONE_BIT) << 1)); #else PolyObject *forwardedTo = obj->FollowForwardingChain(); #endif POLYUNSIGNED lengthWord = forwardedTo->LengthWord(); obj->SetLengthWord(lengthWord); } pt += obj->Length(); } } // Update the global memory space table. Old segments at the same level // or lower are removed. The new segments become permanent. // Try to promote the spaces even if we've had a failure because export // spaces are deleted in ~CopyScan and we may have already copied // some objects there. if (debugOptions & DEBUG_SAVING) Log("SAVE: Promoting export spaces to permanent spaces.\n"); if (! gMem.PromoteExportSpaces(newHierarchy) || ! success) { errorMessage = "Out of Memory"; errCode = NOMEMORY; if (debugOptions & DEBUG_SAVING) Log("SAVE: Unable to promote export spaces.\n"); return; } // Remove any deeper entries from the hierarchy table. while (hierarchyDepth > newHierarchy-1) { hierarchyDepth--; delete(hierarchyTable[hierarchyDepth]); hierarchyTable[hierarchyDepth] = 0; } if (debugOptions & DEBUG_SAVING) Log("SAVE: Writing out data.\n"); // Write out the file header. SavedStateHeader saveHeader; memset(&saveHeader, 0, sizeof(saveHeader)); saveHeader.headerLength = sizeof(saveHeader); strncpy(saveHeader.headerSignature, SAVEDSTATESIGNATURE, sizeof(saveHeader.headerSignature)); saveHeader.headerVersion = SAVEDSTATEVERSION; saveHeader.segmentDescrLength = sizeof(SavedStateSegmentDescr); if (newHierarchy == 1) saveHeader.parentTimeStamp = exportTimeStamp; else { saveHeader.parentTimeStamp = hierarchyTable[newHierarchy-2]->timeStamp; saveHeader.parentNameEntry = sizeof(TCHAR); // Always the first entry. } saveHeader.timeStamp = getBuildTime(); saveHeader.segmentDescrCount = exports.memTableEntries; // One segment for each space. #ifdef POLYML32IN64 saveHeader.originalBaseAddr = globalHeapBase; #endif // Write out the header. fwrite(&saveHeader, sizeof(saveHeader), 1, exports.exportFile); // We need a segment header for each permanent area whether it is // actually in this file or not. SavedStateSegmentDescr *descrs = new SavedStateSegmentDescr [exports.memTableEntries]; for (unsigned j = 0; j < exports.memTableEntries; j++) { memoryTableEntry *entry = &exports.memTable[j]; memset(&descrs[j], 0, sizeof(SavedStateSegmentDescr)); descrs[j].relocationSize = sizeof(RelocationEntry); descrs[j].segmentIndex = (unsigned)entry->mtIndex; descrs[j].segmentSize = entry->mtLength; // Set this even if we don't write it. descrs[j].originalAddress = entry->mtOriginalAddr; if (entry->mtFlags & MTF_WRITEABLE) { descrs[j].segmentFlags |= SSF_WRITABLE; if (entry->mtFlags & MTF_NO_OVERWRITE) descrs[j].segmentFlags |= SSF_NOOVERWRITE; if (j < permanentEntries && (entry->mtFlags & MTF_NO_OVERWRITE) == 0) descrs[j].segmentFlags |= SSF_OVERWRITE; if (entry->mtFlags & MTF_BYTES) descrs[j].segmentFlags |= SSF_BYTES; } if (entry->mtFlags & MTF_EXECUTABLE) descrs[j].segmentFlags |= SSF_CODE; } // Write out temporarily. Will be overwritten at the end. saveHeader.segmentDescr = ftell(exports.exportFile); fwrite(descrs, sizeof(SavedStateSegmentDescr), exports.memTableEntries, exports.exportFile); // Write out the relocations and the data. for (unsigned k = 1 /* Not IO area */; k < exports.memTableEntries; k++) { memoryTableEntry *entry = &exports.memTable[k]; // Write out the contents if this is new or if it is a normal, overwritable // mutable area. if (k >= permanentEntries || (entry->mtFlags & (MTF_WRITEABLE|MTF_NO_OVERWRITE)) == MTF_WRITEABLE) { descrs[k].relocations = ftell(exports.exportFile); // Have to write this out. exports.relocationCount = 0; // Create the relocation table. char *start = (char*)entry->mtOriginalAddr; char *end = start + entry->mtLength; for (PolyWord *p = (PolyWord*)start; p < (PolyWord*)end; ) { p++; PolyObject *obj = (PolyObject*)p; POLYUNSIGNED length = obj->Length(); // Most relocations can be computed when the saved state is // loaded so we only write out the difficult ones: those that // occur within compiled code. // exports.relocateObject(obj); if (length != 0 && obj->IsCodeObject()) machineDependent->ScanConstantsWithinCode(obj, &exports); p += length; } descrs[k].relocationCount = exports.relocationCount; // Write out the data. descrs[k].segmentData = ftell(exports.exportFile); fwrite(entry->mtOriginalAddr, entry->mtLength, 1, exports.exportFile); } } // If this is a child we need to write a string table containing the parent name. if (newHierarchy > 1) { saveHeader.stringTable = ftell(exports.exportFile); _fputtc(0, exports.exportFile); // First byte of string table is zero _fputts(hierarchyTable[newHierarchy-2]->fileName, exports.exportFile); _fputtc(0, exports.exportFile); // A terminating null. saveHeader.stringTableSize = (_tcslen(hierarchyTable[newHierarchy-2]->fileName) + 2)*sizeof(TCHAR); } // Rewrite the header and the segment tables now they're complete. fseek(exports.exportFile, 0, SEEK_SET); fwrite(&saveHeader, sizeof(saveHeader), 1, exports.exportFile); fwrite(descrs, sizeof(SavedStateSegmentDescr), exports.memTableEntries, exports.exportFile); if (debugOptions & DEBUG_SAVING) Log("SAVE: Writing complete.\n"); // Add an entry to the hierarchy table for this file. (void)AddHierarchyEntry(fileName, saveHeader.timeStamp); delete[](descrs); CheckMemory(); } // Write a saved state file. POLYUNSIGNED PolySaveState(PolyObject *threadId, PolyWord fileName, PolyWord depth) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); try { TempString fileNameBuff(Poly_string_to_T_alloc(fileName)); // The value of depth is zero for top-level save so we need to add one for hierarchy. unsigned newHierarchy = get_C_unsigned(taskData, depth) + 1; if (newHierarchy > hierarchyDepth + 1) raise_fail(taskData, "Depth must be no more than the current hierarchy plus one"); // Request a full GC first. The main reason is to avoid running out of memory as a // result of repeated saves. Old export spaces are turned into local spaces and // the GC will delete them if they are completely empty FullGC(taskData); SaveRequest request(fileNameBuff, newHierarchy); processes->MakeRootRequest(taskData, &request); if (request.errorMessage) raise_syscall(taskData, request.errorMessage, request.errCode); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); return TAGGED(0).AsUnsigned(); } /* * Loading saved state files. */ class StateLoader: public MainThreadRequest { public: StateLoader(bool isH, Handle files): MainThreadRequest(MTP_LOADSTATE), isHierarchy(isH), fileNameList(files), errorResult(0), errNumber(0) { } virtual void Perform(void); bool LoadFile(bool isInitial, time_t requiredStamp, PolyWord tail); bool isHierarchy; Handle fileNameList; const char *errorResult; // The fileName here is the last file loaded. As well as using it // to load the name can also be printed out at the end to identify the // particular file in the hierarchy that failed. AutoFree fileName; int errNumber; }; // Called by the main thread once all the ML threads have stopped. void StateLoader::Perform(void) { // Copy the first file name into the buffer. if (isHierarchy) { if (ML_Cons_Cell::IsNull(fileNameList->Word())) { errorResult = "Hierarchy list is empty"; return; } ML_Cons_Cell *p = DEREFLISTHANDLE(fileNameList); fileName = Poly_string_to_T_alloc(p->h); if (fileName == NULL) { errorResult = "Insufficient memory"; errNumber = NOMEMORY; return; } (void)LoadFile(true, 0, p->t); } else { fileName = Poly_string_to_T_alloc(fileNameList->Word()); if (fileName == NULL) { errorResult = "Insufficient memory"; errNumber = NOMEMORY; return; } (void)LoadFile(true, 0, TAGGED(0)); } } class ClearWeakByteRef: public ScanAddress { public: ClearWeakByteRef() {} virtual PolyObject *ScanObjectAddress(PolyObject *base) { return base; } virtual void ScanAddressesInObject(PolyObject *base, POLYUNSIGNED lengthWord); }; // Set the values of external references and clear the values of other weak byte refs. void ClearWeakByteRef::ScanAddressesInObject(PolyObject *base, POLYUNSIGNED lengthWord) { if (OBJ_IS_MUTABLE_OBJECT(lengthWord) && OBJ_IS_BYTE_OBJECT(lengthWord) && OBJ_IS_WEAKREF_OBJECT(lengthWord)) { POLYUNSIGNED len = OBJ_OBJECT_LENGTH(lengthWord); if (len > 0) base->Set(0, PolyWord::FromSigned(0)); setEntryPoint(base); } } // This is copied from the B-tree in MemMgr. It probably should be // merged but will do for the moment. It's intended to reduce the // cost of finding the segment for relocation. class SpaceBTree { public: SpaceBTree(bool is, unsigned i = 0) : isLeaf(is), index(i) { } virtual ~SpaceBTree() {} bool isLeaf; unsigned index; // The index if this is a leaf }; // A non-leaf node in the B-tree class SpaceBTreeTree : public SpaceBTree { public: SpaceBTreeTree(); virtual ~SpaceBTreeTree(); SpaceBTree *tree[256]; }; SpaceBTreeTree::SpaceBTreeTree() : SpaceBTree(false) { for (unsigned i = 0; i < 256; i++) tree[i] = 0; } SpaceBTreeTree::~SpaceBTreeTree() { for (unsigned i = 0; i < 256; i++) delete(tree[i]); } // This class is used to relocate addresses in areas that have been loaded. class LoadRelocate: public ScanAddress { public: LoadRelocate(bool pcc = false): processCodeConstants(pcc), originalBaseAddr(0), descrs(0), targetAddresses(0), nDescrs(0), spaceTree(0) {} ~LoadRelocate(); void RelocateObject(PolyObject *p); virtual PolyObject *ScanObjectAddress(PolyObject *base) { ASSERT(0); return base; } // Not used virtual void ScanConstant(PolyObject *base, byte *addressOfConstant, ScanRelocationKind code); void RelocateAddressAt(PolyWord *pt); PolyObject *RelocateAddress(PolyObject *obj); void AddTreeRange(SpaceBTree **t, unsigned index, uintptr_t startS, uintptr_t endS); bool processCodeConstants; PolyWord *originalBaseAddr; SavedStateSegmentDescr *descrs; PolyWord **targetAddresses; unsigned nDescrs; SpaceBTree *spaceTree; intptr_t relativeOffset; }; LoadRelocate::~LoadRelocate() { if (descrs) delete[](descrs); if (targetAddresses) delete[](targetAddresses); delete(spaceTree); } // Add an entry to the space B-tree. void LoadRelocate::AddTreeRange(SpaceBTree **tt, unsigned index, uintptr_t startS, uintptr_t endS) { if (*tt == 0) *tt = new SpaceBTreeTree; ASSERT(!(*tt)->isLeaf); SpaceBTreeTree *t = (SpaceBTreeTree*)*tt; const unsigned shift = (sizeof(void*) - 1) * 8; // Takes the high-order byte uintptr_t r = startS >> shift; ASSERT(r < 256); const uintptr_t s = endS == 0 ? 256 : endS >> shift; ASSERT(s >= r && s <= 256); if (r == s) // Wholly within this entry AddTreeRange(&(t->tree[r]), index, startS << 8, endS << 8); else { // Deal with any remainder at the start. if ((r << shift) != startS) { AddTreeRange(&(t->tree[r]), index, startS << 8, 0 /*End of range*/); r++; } // Whole entries. while (r < s) { ASSERT(t->tree[r] == 0); t->tree[r] = new SpaceBTree(true, index); r++; } // Remainder at the end. if ((s << shift) != endS) AddTreeRange(&(t->tree[r]), index, 0, endS << 8); } } // Update the addresses in a group of words. void LoadRelocate::RelocateAddressAt(PolyWord *pt) { PolyWord val = *pt; if (! val.IsTagged()) *pt = RelocateAddress(val.AsObjPtr(originalBaseAddr)); } PolyObject *LoadRelocate::RelocateAddress(PolyObject *obj) { // Which segment is this address in? // N.B. As with SpaceForAddress we need to subtract 1 to point to the length word. uintptr_t t = (uintptr_t)((PolyWord*)obj - 1); SpaceBTree *tr = spaceTree; // Each level of the tree is either a leaf or a vector of trees. unsigned j = sizeof(void *) * 8; for (;;) { if (tr == 0) break; if (tr->isLeaf) { // It's in this segment: relocate it to the current position. unsigned i = tr->index; SavedStateSegmentDescr *descr = &descrs[i]; PolyWord *newAddress = targetAddresses[descr->segmentIndex]; ASSERT((char*)obj > descr->originalAddress && (char*)obj <= (char*)descr->originalAddress + descr->segmentSize); ASSERT(newAddress != 0); byte *setAddress = (byte*)newAddress + ((char*)obj - (char*)descr->originalAddress); return (PolyObject*)setAddress; } j -= 8; tr = ((SpaceBTreeTree*)tr)->tree[(t >> j) & 0xff]; } // This should never happen. ASSERT(0); return 0; } // This is based on Exporter::relocateObject but does the reverse. // It attempts to adjust all the addresses in the object when it has // been read in. void LoadRelocate::RelocateObject(PolyObject *p) { if (p->IsByteObject()) { } else if (p->IsCodeObject()) { POLYUNSIGNED constCount; PolyWord *cp; ASSERT(! p->IsMutable() ); p->GetConstSegmentForCode(cp, constCount); /* Now the constant area. */ for (POLYUNSIGNED i = 0; i < constCount; i++) RelocateAddressAt(&(cp[i])); // Saved states and modules have relocation entries for constants in the code. // We can't use them when loading object files in 32-in-64 so have to process the // constants here. if (processCodeConstants) { POLYUNSIGNED length = p->Length(); machineDependent->ScanConstantsWithinCode(p, p, length, this); } } else if (p->IsClosureObject()) { // The first word is the address of the code. POLYUNSIGNED length = p->Length(); *(PolyObject**)p = RelocateAddress(*(PolyObject**)p); for (POLYUNSIGNED i = sizeof(PolyObject*)/sizeof(PolyWord); i < length; i++) RelocateAddressAt(p->Offset(i)); } else /* Ordinary objects, essentially tuples. */ { POLYUNSIGNED length = p->Length(); for (POLYUNSIGNED i = 0; i < length; i++) RelocateAddressAt(p->Offset(i)); } } // Update addresses as constants within the code. void LoadRelocate::ScanConstant(PolyObject *base, byte *addressOfConstant, ScanRelocationKind code) { PolyObject *p = GetConstantValue(addressOfConstant, code, originalBaseAddr); if (p != 0) { // Relative addresses are computed by adding the CURRENT address. // We have to convert them into addresses in original space before we // can relocate them. if (code == PROCESS_RELOC_I386RELATIVE) p = (PolyObject*)((PolyWord*)p + relativeOffset); PolyObject *newValue = RelocateAddress(p); SetConstantValue(addressOfConstant, newValue, code); } } // Load a saved state file. Calls itself to handle parent files. bool StateLoader::LoadFile(bool isInitial, time_t requiredStamp, PolyWord tail) { LoadRelocate relocate; AutoFree thisFile(_tcsdup(fileName)); AutoClose loadFile(_tfopen(fileName, _T("rb"))); if ((FILE*)loadFile == NULL) { errorResult = "Cannot open load file"; errNumber = ERRORNUMBER; return false; } SavedStateHeader header; // Read the header and check the signature. if (fread(&header, sizeof(SavedStateHeader), 1, loadFile) != 1) { errorResult = "Unable to load header"; return false; } if (strncmp(header.headerSignature, SAVEDSTATESIGNATURE, sizeof(header.headerSignature)) != 0) { errorResult = "File is not a saved state"; return false; } if (header.headerVersion != SAVEDSTATEVERSION || header.headerLength != sizeof(SavedStateHeader) || header.segmentDescrLength != sizeof(SavedStateSegmentDescr)) { errorResult = "Unsupported version of saved state file"; return false; } // Check that we have the required stamp before loading any children. // If a parent has been overwritten we could get a loop. if (! isInitial && header.timeStamp != requiredStamp) { // Time-stamps don't match. errorResult = "The parent for this saved state does not match or has been changed"; return false; } // Have verified that this is a reasonable saved state file. If it isn't a // top-level file we have to load the parents first. if (header.parentNameEntry != 0) { if (isHierarchy) { // Take the file name from the list if (ML_Cons_Cell::IsNull(tail)) { errorResult = "Missing parent name in argument list"; return false; } ML_Cons_Cell *p = (ML_Cons_Cell *)tail.AsObjPtr(); fileName = Poly_string_to_T_alloc(p->h); if (fileName == NULL) { errorResult = "Insufficient memory"; errNumber = NOMEMORY; return false; } if (! LoadFile(false, header.parentTimeStamp, p->t)) return false; } else { size_t toRead = header.stringTableSize-header.parentNameEntry; size_t elems = ((toRead + sizeof(TCHAR) - 1) / sizeof(TCHAR)); // Always allow space for null terminator size_t roundedBytes = (elems + 1) * sizeof(TCHAR); TCHAR *newFileName = (TCHAR *)realloc(fileName, roundedBytes); if (newFileName == NULL) { errorResult = "Insufficient memory"; errNumber = NOMEMORY; return false; } fileName = newFileName; if (header.parentNameEntry >= header.stringTableSize /* Bad entry */ || fseek(loadFile, header.stringTable + header.parentNameEntry, SEEK_SET) != 0 || fread(fileName, 1, toRead, loadFile) != toRead) { errorResult = "Unable to read parent file name"; return false; } fileName[elems] = 0; // Should already be null-terminated, but just in case. if (! LoadFile(false, header.parentTimeStamp, TAGGED(0))) return false; } ASSERT(hierarchyDepth > 0 && hierarchyTable[hierarchyDepth-1] != 0); } else // Top-level file { if (isHierarchy && ! ML_Cons_Cell::IsNull(tail)) { // There should be no further file names if this is really the top. errorResult = "Too many file names in the list"; return false; } if (header.parentTimeStamp != exportTimeStamp) { // Time-stamp does not match executable. errorResult = "Saved state was exported from a different executable or the executable has changed"; return false; } // Any existing spaces at this level or greater must be turned // into local spaces. We may have references from the stack to objects that // have previously been imported but otherwise these spaces are no longer // needed. gMem.DemoteImportSpaces(); // Clean out the hierarchy table. for (unsigned h = 0; h < hierarchyDepth; h++) { delete(hierarchyTable[h]); hierarchyTable[h] = 0; } hierarchyDepth = 0; } // Now have a valid, matching saved state. // Load the segment descriptors. relocate.nDescrs = header.segmentDescrCount; relocate.descrs = new SavedStateSegmentDescr[relocate.nDescrs]; relocate.originalBaseAddr = (PolyWord*)header.originalBaseAddr; if (fseek(loadFile, header.segmentDescr, SEEK_SET) != 0 || fread(relocate.descrs, sizeof(SavedStateSegmentDescr), relocate.nDescrs, loadFile) != relocate.nDescrs) { errorResult = "Unable to read segment descriptors"; return false; } { unsigned maxIndex = 0; for (unsigned i = 0; i < relocate.nDescrs; i++) { if (relocate.descrs[i].segmentIndex > maxIndex) maxIndex = relocate.descrs[i].segmentIndex; relocate.AddTreeRange(&relocate.spaceTree, i, (uintptr_t)relocate.descrs[i].originalAddress, (uintptr_t)((char*)relocate.descrs[i].originalAddress + relocate.descrs[i].segmentSize-1)); } relocate.targetAddresses = new PolyWord*[maxIndex+1]; for (unsigned i = 0; i <= maxIndex; i++) relocate.targetAddresses[i] = 0; } // Read in and create the new segments first. If we have problems, // in particular if we have run out of memory, then it's easier to recover. for (unsigned i = 0; i < relocate.nDescrs; i++) { SavedStateSegmentDescr *descr = &relocate.descrs[i]; MemSpace *space = gMem.SpaceForIndex(descr->segmentIndex); if (space != NULL) relocate.targetAddresses[descr->segmentIndex] = space->bottom; if (descr->segmentData == 0) { // No data - just an entry in the index. if (space == NULL/* || descr->segmentSize != (size_t)((char*)space->top - (char*)space->bottom)*/) { errorResult = "Mismatch for existing memory space"; return false; } } else if ((descr->segmentFlags & SSF_OVERWRITE) == 0) { // New segment. if (space != NULL) { errorResult = "Segment already exists"; return false; } // Allocate memory for the new segment. unsigned mFlags = (descr->segmentFlags & SSF_WRITABLE ? MTF_WRITEABLE : 0) | (descr->segmentFlags & SSF_NOOVERWRITE ? MTF_NO_OVERWRITE : 0) | (descr->segmentFlags & SSF_BYTES ? MTF_BYTES : 0) | (descr->segmentFlags & SSF_CODE ? MTF_EXECUTABLE : 0); PermanentMemSpace *newSpace = gMem.AllocateNewPermanentSpace(descr->segmentSize, mFlags, descr->segmentIndex, hierarchyDepth + 1); if (newSpace == 0) { errorResult = "Unable to allocate memory"; return false; } PolyWord *mem = newSpace->bottom; if (fseek(loadFile, descr->segmentData, SEEK_SET) != 0 || fread(mem, descr->segmentSize, 1, loadFile) != 1) { errorResult = "Unable to read segment"; return false; } // Fill unused space to the top of the area. gMem.FillUnusedSpace(mem+descr->segmentSize/sizeof(PolyWord), newSpace->spaceSize() - descr->segmentSize/sizeof(PolyWord)); // Leave it writable until we've done the relocations. relocate.targetAddresses[descr->segmentIndex] = mem; if (newSpace->isMutable && newSpace->byteOnly) { ClearWeakByteRef cwbr; cwbr.ScanAddressesInRegion(newSpace->bottom, newSpace->topPointer); } } } // Now read in the mutable overwrites and relocate. for (unsigned j = 0; j < relocate.nDescrs; j++) { SavedStateSegmentDescr *descr = &relocate.descrs[j]; MemSpace *space = gMem.SpaceForIndex(descr->segmentIndex); ASSERT(space != NULL); // We should have created it. if (descr->segmentFlags & SSF_OVERWRITE) { if (fseek(loadFile, descr->segmentData, SEEK_SET) != 0 || fread(space->bottom, descr->segmentSize, 1, loadFile) != 1) { errorResult = "Unable to read segment"; return false; } } // Relocation. if (descr->segmentData != 0) { // Adjust the addresses in the loaded segment. for (PolyWord *p = space->bottom; p < space->top; ) { p++; PolyObject *obj = (PolyObject*)p; POLYUNSIGNED length = obj->Length(); relocate.RelocateObject(obj); p += length; } } // Process explicit relocations. // If we get errors just skip the error and continue rather than leave // everything in an unstable state. if (descr->relocations) { if (fseek(loadFile, descr->relocations, SEEK_SET) != 0) { errorResult = "Unable to read relocation segment"; return false; } for (unsigned k = 0; k < descr->relocationCount; k++) { RelocationEntry reloc; if (fread(&reloc, sizeof(reloc), 1, loadFile) != 1) { errorResult = "Unable to read relocation segment"; return false; } MemSpace *toSpace = gMem.SpaceForIndex(reloc.targetSegment); if (toSpace == NULL) { errorResult = "Unknown space reference in relocation"; continue; } byte *setAddress = (byte*)space->bottom + reloc.relocAddress; byte *targetAddress = (byte*)toSpace->bottom + reloc.targetAddress; if (setAddress >= (byte*)space->top || targetAddress >= (byte*)toSpace->top) { errorResult = "Bad relocation"; continue; } ScanAddress::SetConstantValue(setAddress, (PolyObject*)(targetAddress), reloc.relKind); } } } // Set the final permissions. for (unsigned j = 0; j < relocate.nDescrs; j++) { SavedStateSegmentDescr *descr = &relocate.descrs[j]; PermanentMemSpace *space = gMem.SpaceForIndex(descr->segmentIndex); gMem.CompletePermanentSpaceAllocation(space); } // Add an entry to the hierarchy table for this file. if (! AddHierarchyEntry(thisFile, header.timeStamp)) return false; return true; // Succeeded } static void LoadState(TaskData *taskData, bool isHierarchy, Handle hFileList) // Load a saved state or a hierarchy. // hFileList is a list if this is a hierarchy and a single name if it is not. { StateLoader loader(isHierarchy, hFileList); // Request the main thread to do the load. This may set the error string if it failed. processes->MakeRootRequest(taskData, &loader); if (loader.errorResult != 0) { if (loader.errNumber == 0) raise_fail(taskData, loader.errorResult); else { AutoFree buff((char *)malloc(strlen(loader.errorResult) + 2 + _tcslen(loader.fileName) * sizeof(TCHAR) + 1)); #if (defined(_WIN32) && defined(UNICODE)) sprintf(buff, "%s: %S", loader.errorResult, (TCHAR *)loader.fileName); #else sprintf(buff, "%s: %s", loader.errorResult, (TCHAR *)loader.fileName); #endif raise_syscall(taskData, buff, loader.errNumber); } } } // Load a saved state file and any ancestors. POLYUNSIGNED PolyLoadState(PolyObject *threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); try { LoadState(taskData, false, pushedArg); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); return TAGGED(0).AsUnsigned(); } // Load hierarchy. This provides a complete list of children and parents. POLYUNSIGNED PolyLoadHierarchy(PolyObject *threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); - Handle result = 0; try { LoadState(taskData, true, pushedArg); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); return TAGGED(0).AsUnsigned(); } /* * Additional functions to provide information or change saved-state files. */ // These functions do not affect the global state so can be executed by // the ML threads directly. static Handle ShowHierarchy(TaskData *taskData) // Return the list of files in the hierarchy. { Handle saved = taskData->saveVec.mark(); Handle list = SAVE(ListNull); // Process this in reverse order. for (unsigned i = hierarchyDepth; i > 0; i--) { Handle value = SAVE(C_string_to_Poly(taskData, hierarchyTable[i-1]->fileName)); Handle next = alloc_and_save(taskData, sizeof(ML_Cons_Cell)/sizeof(PolyWord)); DEREFLISTHANDLE(next)->h = value->Word(); DEREFLISTHANDLE(next)->t = list->Word(); taskData->saveVec.reset(saved); list = SAVE(next->Word()); } return list; } // Show the hierarchy. POLYUNSIGNED PolyShowHierarchy(PolyObject *threadId) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle result = 0; try { result = ShowHierarchy(taskData); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } static void RenameParent(TaskData *taskData, PolyWord childName, PolyWord parentName) // Change the name of the immediate parent stored in a child { // The name of the file to modify. AutoFree fileNameBuff(Poly_string_to_T_alloc(childName)); if (fileNameBuff == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); // The new parent name to insert. AutoFree parentNameBuff(Poly_string_to_T_alloc(parentName)); if (parentNameBuff == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); AutoClose loadFile(_tfopen(fileNameBuff, _T("r+b"))); // Open for reading and writing if ((FILE*)loadFile == NULL) { AutoFree buff((char *)malloc(23 + _tcslen(fileNameBuff) * sizeof(TCHAR) + 1)); #if (defined(_WIN32) && defined(UNICODE)) sprintf(buff, "Cannot open load file: %S", (TCHAR *)fileNameBuff); #else sprintf(buff, "Cannot open load file: %s", (TCHAR *)fileNameBuff); #endif raise_syscall(taskData, buff, ERRORNUMBER); } SavedStateHeader header; // Read the header and check the signature. if (fread(&header, sizeof(SavedStateHeader), 1, loadFile) != 1) raise_fail(taskData, "Unable to load header"); if (strncmp(header.headerSignature, SAVEDSTATESIGNATURE, sizeof(header.headerSignature)) != 0) raise_fail(taskData, "File is not a saved state"); if (header.headerVersion != SAVEDSTATEVERSION || header.headerLength != sizeof(SavedStateHeader) || header.segmentDescrLength != sizeof(SavedStateSegmentDescr)) { raise_fail(taskData, "Unsupported version of saved state file"); } // Does this actually have a parent? if (header.parentNameEntry == 0) raise_fail(taskData, "File does not have a parent"); // At the moment the only entry in the string table is the parent // name so we can simply write a new one on the end of the file. // This makes the file grow slightly each time but it shouldn't be // significant. fseek(loadFile, 0, SEEK_END); header.stringTable = ftell(loadFile); // Remember where this is _fputtc(0, loadFile); // First byte of string table is zero _fputts(parentNameBuff, loadFile); _fputtc(0, loadFile); // A terminating null. header.stringTableSize = (_tcslen(parentNameBuff) + 2)*sizeof(TCHAR); // Now rewind and write the header with the revised string table. fseek(loadFile, 0, SEEK_SET); fwrite(&header, sizeof(header), 1, loadFile); } POLYUNSIGNED PolyRenameParent(PolyObject *threadId, PolyWord childName, PolyWord parentName) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); try { RenameParent(taskData, childName, parentName); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); return TAGGED(0).AsUnsigned(); } static Handle ShowParent(TaskData *taskData, Handle hFileName) // Return the name of the immediate parent stored in a child { AutoFree fileNameBuff(Poly_string_to_T_alloc(hFileName->Word())); if (fileNameBuff == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); AutoClose loadFile(_tfopen(fileNameBuff, _T("rb"))); if ((FILE*)loadFile == NULL) { AutoFree buff((char *)malloc(23 + _tcslen(fileNameBuff) * sizeof(TCHAR) + 1)); if (buff == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); #if (defined(_WIN32) && defined(UNICODE)) sprintf(buff, "Cannot open load file: %S", (TCHAR *)fileNameBuff); #else sprintf(buff, "Cannot open load file: %s", (TCHAR *)fileNameBuff); #endif raise_syscall(taskData, buff, ERRORNUMBER); } SavedStateHeader header; // Read the header and check the signature. if (fread(&header, sizeof(SavedStateHeader), 1, loadFile) != 1) raise_fail(taskData, "Unable to load header"); if (strncmp(header.headerSignature, SAVEDSTATESIGNATURE, sizeof(header.headerSignature)) != 0) raise_fail(taskData, "File is not a saved state"); if (header.headerVersion != SAVEDSTATEVERSION || header.headerLength != sizeof(SavedStateHeader) || header.segmentDescrLength != sizeof(SavedStateSegmentDescr)) { raise_fail(taskData, "Unsupported version of saved state file"); } // Does this have a parent? if (header.parentNameEntry != 0) { size_t toRead = header.stringTableSize-header.parentNameEntry; size_t elems = ((toRead + sizeof(TCHAR) - 1) / sizeof(TCHAR)); // Always allow space for null terminator size_t roundedBytes = (elems + 1) * sizeof(TCHAR); AutoFree parentFileName((TCHAR *)malloc(roundedBytes)); if (parentFileName == NULL) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (header.parentNameEntry >= header.stringTableSize /* Bad entry */ || fseek(loadFile, header.stringTable + header.parentNameEntry, SEEK_SET) != 0 || fread(parentFileName, 1, toRead, loadFile) != toRead) { raise_fail(taskData, "Unable to read parent file name"); } parentFileName[elems] = 0; // Should already be null-terminated, but just in case. // Convert the name into a Poly string and then build a "Some" value. // It's possible, although silly, to have the empty string as a parent name. Handle resVal = SAVE(C_string_to_Poly(taskData, parentFileName)); Handle result = alloc_and_save(taskData, 1); DEREFHANDLE(result)->Set(0, resVal->Word()); return result; } else return SAVE(NONE_VALUE); } // Return the name of the immediate parent stored in a child POLYUNSIGNED PolyShowParent(PolyObject *threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); Handle result = 0; try { result = ShowParent(taskData, pushedArg); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // Module system #define MODULESIGNATURE "POLYMODU" #define MODULEVERSION 2 typedef struct _moduleHeader { // These entries are primarily to check that we have a valid // saved state file before we try to interpret anything else. char headerSignature[8]; // Should contain MODULESIGNATURE unsigned headerVersion; // Should contain MODULEVERSION unsigned headerLength; // Number of bytes in the header unsigned segmentDescrLength; // Number of bytes in a descriptor // These entries contain the real data. off_t segmentDescr; // Position of segment descriptor table unsigned segmentDescrCount; // Number of segment descriptors in the table time_t timeStamp; // The time stamp for this file. time_t executableTimeStamp; // The time stamp for the parent executable. // Root uintptr_t rootSegment; POLYUNSIGNED rootOffset; } ModuleHeader; // Store a module class ModuleStorer: public MainThreadRequest { public: ModuleStorer(const TCHAR *file, Handle r): MainThreadRequest(MTP_STOREMODULE), fileName(file), root(r), errorMessage(0), errCode(0) {} virtual void Perform(); const TCHAR *fileName; Handle root; const char *errorMessage; int errCode; }; class ModuleExport: public SaveStateExport { public: ModuleExport(): SaveStateExport(1/* Everything EXCEPT the executable. */) {} virtual void exportStore(void); // Write the data out. }; void ModuleStorer::Perform() { ModuleExport exporter; #if (defined(_WIN32) && defined(UNICODE)) exporter.exportFile = _wfopen(fileName, L"wb"); #else exporter.exportFile = fopen(fileName, "wb"); #endif if (exporter.exportFile == NULL) { errorMessage = "Cannot open export file"; errCode = ERRORNUMBER; return; } // RunExport copies everything reachable from the root, except data from // the executable because we've set the hierarchy to 1, using CopyScan. // It builds the tables in the export data structure then calls exportStore // to actually write the data. if (! root->Word().IsDataPtr()) { // If we have a completely empty module the list may be null. // This needs to be dealt with at a higher level. errorMessage = "Module root is not an address"; return; } exporter.RunExport(root->WordP()); errorMessage = exporter.errorMessage; // This will be null unless there's been an error. } void ModuleExport::exportStore(void) { // What we need to do here is implement the export in a similar way to e.g. PECOFFExport::exportStore // This is copied from SaveRequest::Perform and should be common code. ModuleHeader modHeader; memset(&modHeader, 0, sizeof(modHeader)); modHeader.headerLength = sizeof(modHeader); strncpy(modHeader.headerSignature, MODULESIGNATURE, sizeof(modHeader.headerSignature)); modHeader.headerVersion = MODULEVERSION; modHeader.segmentDescrLength = sizeof(SavedStateSegmentDescr); modHeader.executableTimeStamp = exportTimeStamp; { unsigned rootArea = findArea(this->rootFunction); struct _memTableEntry *mt = &memTable[rootArea]; modHeader.rootSegment = mt->mtIndex; modHeader.rootOffset = (POLYUNSIGNED)((char*)this->rootFunction - (char*)mt->mtOriginalAddr); } modHeader.timeStamp = getBuildTime(); modHeader.segmentDescrCount = this->memTableEntries; // One segment for each space. // Write out the header. fwrite(&modHeader, sizeof(modHeader), 1, this->exportFile); SavedStateSegmentDescr *descrs = new SavedStateSegmentDescr [this->memTableEntries]; // We need an entry in the descriptor tables for each segment in the executable because // we may have relocations that refer to addresses in it. for (unsigned j = 0; j < this->memTableEntries; j++) { SavedStateSegmentDescr *thisDescr = &descrs[j]; memoryTableEntry *entry = &this->memTable[j]; memset(thisDescr, 0, sizeof(SavedStateSegmentDescr)); thisDescr->relocationSize = sizeof(RelocationEntry); thisDescr->segmentIndex = (unsigned)entry->mtIndex; thisDescr->segmentSize = entry->mtLength; // Set this even if we don't write it. thisDescr->originalAddress = entry->mtOriginalAddr; if (entry->mtFlags & MTF_WRITEABLE) { thisDescr->segmentFlags |= SSF_WRITABLE; if (entry->mtFlags & MTF_NO_OVERWRITE) thisDescr->segmentFlags |= SSF_NOOVERWRITE; if ((entry->mtFlags & MTF_NO_OVERWRITE) == 0) thisDescr->segmentFlags |= SSF_OVERWRITE; if (entry->mtFlags & MTF_BYTES) thisDescr->segmentFlags |= SSF_BYTES; } if (entry->mtFlags & MTF_EXECUTABLE) thisDescr->segmentFlags |= SSF_CODE; } // Write out temporarily. Will be overwritten at the end. modHeader.segmentDescr = ftell(this->exportFile); fwrite(descrs, sizeof(SavedStateSegmentDescr), this->memTableEntries, this->exportFile); // Write out the relocations and the data. for (unsigned k = 0; k < this->memTableEntries; k++) { SavedStateSegmentDescr *thisDescr = &descrs[k]; memoryTableEntry *entry = &this->memTable[k]; if (k >= newAreas) // Not permanent areas { thisDescr->relocations = ftell(this->exportFile); // Have to write this out. this->relocationCount = 0; // Create the relocation table. char *start = (char*)entry->mtOriginalAddr; char *end = start + entry->mtLength; for (PolyWord *p = (PolyWord*)start; p < (PolyWord*)end; ) { p++; PolyObject *obj = (PolyObject*)p; POLYUNSIGNED length = obj->Length(); // For saved states we don't include explicit relocations except // in code but it's easier if we do for modules. if (length != 0 && obj->IsCodeObject()) machineDependent->ScanConstantsWithinCode(obj, this); relocateObject(obj); p += length; } thisDescr->relocationCount = this->relocationCount; // Write out the data. thisDescr->segmentData = ftell(exportFile); fwrite(entry->mtOriginalAddr, entry->mtLength, 1, exportFile); } } // Rewrite the header and the segment tables now they're complete. fseek(exportFile, 0, SEEK_SET); fwrite(&modHeader, sizeof(modHeader), 1, exportFile); fwrite(descrs, sizeof(SavedStateSegmentDescr), this->memTableEntries, exportFile); delete[](descrs); fclose(exportFile); exportFile = NULL; } // Store a module POLYUNSIGNED PolyStoreModule(PolyObject *threadId, PolyWord name, PolyWord contents) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedContents = taskData->saveVec.push(contents); try { TempString fileName(name); ModuleStorer storer(fileName, pushedContents); processes->MakeRootRequest(taskData, &storer); if (storer.errorMessage) raise_syscall(taskData, storer.errorMessage, storer.errCode); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); return TAGGED(0).AsUnsigned(); } // Load a module. class ModuleLoader: public MainThreadRequest { public: ModuleLoader(TaskData *taskData, const TCHAR *file): MainThreadRequest(MTP_LOADMODULE), callerTaskData(taskData), fileName(file), errorResult(NULL), errNumber(0), rootHandle(0) {} virtual void Perform(); TaskData *callerTaskData; const TCHAR *fileName; const char *errorResult; int errNumber; Handle rootHandle; }; void ModuleLoader::Perform() { AutoClose loadFile(_tfopen(fileName, _T("rb"))); if ((FILE*)loadFile == NULL) { errorResult = "Cannot open load file"; errNumber = ERRORNUMBER; return; } ModuleHeader header; // Read the header and check the signature. if (fread(&header, sizeof(ModuleHeader), 1, loadFile) != 1) { errorResult = "Unable to load header"; return; } if (strncmp(header.headerSignature, MODULESIGNATURE, sizeof(header.headerSignature)) != 0) { errorResult = "File is not a Poly/ML module"; return; } if (header.headerVersion != MODULEVERSION || header.headerLength != sizeof(ModuleHeader) || header.segmentDescrLength != sizeof(SavedStateSegmentDescr)) { errorResult = "Unsupported version of module file"; return; } if (header.executableTimeStamp != exportTimeStamp) { // Time-stamp does not match executable. errorResult = "Module was exported from a different executable or the executable has changed"; return; } LoadRelocate relocate; relocate.nDescrs = header.segmentDescrCount; relocate.descrs = new SavedStateSegmentDescr[relocate.nDescrs]; if (fseek(loadFile, header.segmentDescr, SEEK_SET) != 0 || fread(relocate.descrs, sizeof(SavedStateSegmentDescr), relocate.nDescrs, loadFile) != relocate.nDescrs) { errorResult = "Unable to read segment descriptors"; return; } { unsigned maxIndex = 0; for (unsigned i = 0; i < relocate.nDescrs; i++) if (relocate.descrs[i].segmentIndex > maxIndex) maxIndex = relocate.descrs[i].segmentIndex; relocate.targetAddresses = new PolyWord*[maxIndex+1]; for (unsigned i = 0; i <= maxIndex; i++) relocate.targetAddresses[i] = 0; } // Read in and create the new segments first. If we have problems, // in particular if we have run out of memory, then it's easier to recover. for (unsigned i = 0; i < relocate.nDescrs; i++) { SavedStateSegmentDescr *descr = &relocate.descrs[i]; MemSpace *space = gMem.SpaceForIndex(descr->segmentIndex); if (descr->segmentData == 0) { // No data - just an entry in the index. if (space == NULL/* || descr->segmentSize != (size_t)((char*)space->top - (char*)space->bottom)*/) { errorResult = "Mismatch for existing memory space"; return; } else relocate.targetAddresses[descr->segmentIndex] = space->bottom; } else { // New segment. if (space != NULL) { errorResult = "Segment already exists"; return; } // Allocate memory for the new segment. size_t actualSize = descr->segmentSize; MemSpace *space; if (descr->segmentFlags & SSF_CODE) { CodeSpace *cSpace = gMem.NewCodeSpace(actualSize); if (cSpace == 0) { errorResult = "Unable to allocate memory"; return; } space = cSpace; cSpace->firstFree = (PolyWord*)((byte*)space->bottom + descr->segmentSize); if (cSpace->firstFree != cSpace->top) gMem.FillUnusedSpace(cSpace->firstFree, cSpace->top - cSpace->firstFree); } else { LocalMemSpace *lSpace = gMem.NewLocalSpace(actualSize, descr->segmentFlags & SSF_WRITABLE); if (lSpace == 0) { errorResult = "Unable to allocate memory"; return; } space = lSpace; lSpace->lowerAllocPtr = (PolyWord*)((byte*)lSpace->bottom + descr->segmentSize); } if (fseek(loadFile, descr->segmentData, SEEK_SET) != 0 || fread(space->bottom, descr->segmentSize, 1, loadFile) != 1) { errorResult = "Unable to read segment"; return; } relocate.targetAddresses[descr->segmentIndex] = space->bottom; if (space->isMutable && (descr->segmentFlags & SSF_BYTES) != 0) { ClearWeakByteRef cwbr; cwbr.ScanAddressesInRegion(space->bottom, (PolyWord*)((byte*)space->bottom + descr->segmentSize)); } } } // Now deal with relocation. for (unsigned j = 0; j < relocate.nDescrs; j++) { SavedStateSegmentDescr *descr = &relocate.descrs[j]; PolyWord *baseAddr = relocate.targetAddresses[descr->segmentIndex]; ASSERT(baseAddr != NULL); // We should have created it. // Process explicit relocations. // If we get errors just skip the error and continue rather than leave // everything in an unstable state. if (descr->relocations) { if (fseek(loadFile, descr->relocations, SEEK_SET) != 0) errorResult = "Unable to read relocation segment"; for (unsigned k = 0; k < descr->relocationCount; k++) { RelocationEntry reloc; if (fread(&reloc, sizeof(reloc), 1, loadFile) != 1) errorResult = "Unable to read relocation segment"; byte *setAddress = (byte*)baseAddr + reloc.relocAddress; byte *targetAddress = (byte*)relocate.targetAddresses[reloc.targetSegment] + reloc.targetAddress; ScanAddress::SetConstantValue(setAddress, (PolyObject*)(targetAddress), reloc.relKind); } } } // Get the root address. Push this to the caller's save vec. If we put the // newly created areas into local memory we could get a GC as soon as we // complete this root request. { PolyWord *baseAddr = relocate.targetAddresses[header.rootSegment]; rootHandle = callerTaskData->saveVec.push((PolyObject*)((byte*)baseAddr + header.rootOffset)); } } static Handle LoadModule(TaskData *taskData, Handle args) { TempString fileName(args->Word()); ModuleLoader loader(taskData, fileName); processes->MakeRootRequest(taskData, &loader); if (loader.errorResult != 0) { if (loader.errNumber == 0) raise_fail(taskData, loader.errorResult); else { AutoFree buff((char *)malloc(strlen(loader.errorResult) + 2 + _tcslen(loader.fileName) * sizeof(TCHAR) + 1)); #if (defined(_WIN32) && defined(UNICODE)) sprintf(buff, "%s: %S", loader.errorResult, loader.fileName); #else sprintf(buff, "%s: %s", loader.errorResult, loader.fileName); #endif raise_syscall(taskData, buff, loader.errNumber); } } return loader.rootHandle; } // Load a module POLYUNSIGNED PolyLoadModule(PolyObject *threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); Handle result = 0; try { result = LoadModule(taskData, pushedArg); } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } PolyObject *InitHeaderFromExport(struct _exportDescription *exports) { // Check the structure sizes stored in the export structure match the versions // used in this library. if (exports->structLength != sizeof(exportDescription) || exports->memTableSize != sizeof(memoryTableEntry) || exports->rtsVersion < FIRST_supported_version || exports->rtsVersion > LAST_supported_version) { #if (FIRST_supported_version == LAST_supported_version) Exit("The exported object file has version %0.2f but this library supports %0.2f", ((float)exports->rtsVersion) / 100.0, ((float)FIRST_supported_version) / 100.0); #else Exit("The exported object file has version %0.2f but this library supports %0.2f-%0.2f", ((float)exports->rtsVersion) / 100.0, ((float)FIRST_supported_version) / 100.0, ((float)LAST_supported_version) / 100.0); #endif } // We could also check the RTS version and the architecture. exportTimeStamp = exports->timeStamp; // Needed for load and save. memoryTableEntry *memTable = exports->memTable; #ifdef POLYML32IN64 // We need to copy this into the heap before beginning execution. // This is very like loading a saved state and the code should probably // be merged. LoadRelocate relocate(true); relocate.nDescrs = exports->memTableEntries; relocate.descrs = new SavedStateSegmentDescr[relocate.nDescrs]; relocate.targetAddresses = new PolyWord*[exports->memTableEntries]; relocate.originalBaseAddr = (PolyWord*)exports->originalBaseAddr; PolyObject *root = 0; for (unsigned i = 0; i < exports->memTableEntries; i++) { relocate.descrs[i].segmentIndex = memTable[i].mtIndex; relocate.descrs[i].originalAddress = memTable[i].mtOriginalAddr; relocate.descrs[i].segmentSize = memTable[i].mtLength; PermanentMemSpace *newSpace = gMem.AllocateNewPermanentSpace(memTable[i].mtLength, (unsigned)memTable[i].mtFlags, (unsigned)memTable[i].mtIndex); if (newSpace == 0) Exit("Unable to initialise a permanent memory space"); PolyWord *mem = newSpace->bottom; memcpy(mem, memTable[i].mtCurrentAddr, memTable[i].mtLength); gMem.FillUnusedSpace(mem + memTable[i].mtLength / sizeof(PolyWord), newSpace->spaceSize() - memTable[i].mtLength / sizeof(PolyWord)); if (newSpace == 0) Exit("Unable to initialise a permanent memory space"); relocate.targetAddresses[i] = mem; relocate.AddTreeRange(&relocate.spaceTree, i, (uintptr_t)relocate.descrs[i].originalAddress, (uintptr_t)((char*)relocate.descrs[i].originalAddress + relocate.descrs[i].segmentSize - 1)); // Relocate the root function. if (exports->rootFunction >= memTable[i].mtCurrentAddr && exports->rootFunction < (char*)memTable[i].mtCurrentAddr + memTable[i].mtLength) { root = (PolyObject*)((char*)mem + ((char*)exports->rootFunction - (char*)memTable[i].mtCurrentAddr)); } } // Now relocate the addresses for (unsigned j = 0; j < exports->memTableEntries; j++) { SavedStateSegmentDescr *descr = &relocate.descrs[j]; MemSpace *space = gMem.SpaceForIndex(descr->segmentIndex); // Any relative addresses have to be corrected by adding this. relocate.relativeOffset = (PolyWord*)descr->originalAddress - space->bottom; for (PolyWord *p = space->bottom; p < space->top; ) { #ifdef POLYML32IN64 if ((((uintptr_t)p) & 4) == 0) { // Skip any padding. The length word should be on an odd-word boundary. p++; continue; } #endif p++; PolyObject *obj = (PolyObject*)p; POLYUNSIGNED length = obj->Length(); relocate.RelocateObject(obj); p += length; } } // Set the final permissions. for (unsigned j = 0; j < exports->memTableEntries; j++) { PermanentMemSpace *space = gMem.SpaceForIndex(memTable[j].mtIndex); gMem.CompletePermanentSpaceAllocation(space); } return root; #else for (unsigned i = 0; i < exports->memTableEntries; i++) { // Construct a new space for each of the entries. if (gMem.NewPermanentSpace( (PolyWord*)memTable[i].mtCurrentAddr, memTable[i].mtLength / sizeof(PolyWord), (unsigned)memTable[i].mtFlags, (unsigned)memTable[i].mtIndex) == 0) Exit("Unable to initialise a permanent memory space"); } return (PolyObject *)exports->rootFunction; #endif } // Return the system directory for modules. This is configured differently // in Unix and in Windows. POLYUNSIGNED PolyGetModuleDirectory(PolyObject *threadId) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle result = 0; try { #if (defined(MODULEDIR)) result = SAVE(C_string_to_Poly(taskData, MODULEDIR)); #elif (defined(_WIN32) && ! defined(__CYGWIN__)) { // This registry key is configured when Poly/ML is installed using the installer. // It gives the path to the Poly/ML installation directory. We return the // Modules subdirectory. HKEY hk; if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\App Paths\\PolyML.exe"), 0, KEY_QUERY_VALUE, &hk) == ERROR_SUCCESS) { DWORD valSize; if (RegQueryValueEx(hk, _T("Path"), 0, NULL, NULL, &valSize) == ERROR_SUCCESS) { #define MODULEDIR _T("Modules") TempString buff((TCHAR*)malloc(valSize + (_tcslen(MODULEDIR) + 1) * sizeof(TCHAR))); DWORD dwType; if (RegQueryValueEx(hk, _T("Path"), 0, &dwType, (LPBYTE)(LPTSTR)buff, &valSize) == ERROR_SUCCESS) { // The registry entry should end with a backslash. _tcscat(buff, MODULEDIR); result = SAVE(C_string_to_Poly(taskData, buff)); } } RegCloseKey(hk); } result = SAVE(C_string_to_Poly(taskData, "")); } #else result = SAVE(C_string_to_Poly(taskData, "")); #endif } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } struct _entrypts savestateEPT[] = { { "PolySaveState", (polyRTSFunction)&PolySaveState }, { "PolyLoadState", (polyRTSFunction)&PolyLoadState }, { "PolyShowHierarchy", (polyRTSFunction)&PolyShowHierarchy }, { "PolyRenameParent", (polyRTSFunction)&PolyRenameParent }, { "PolyShowParent", (polyRTSFunction)&PolyShowParent }, { "PolyStoreModule", (polyRTSFunction)&PolyStoreModule }, { "PolyLoadModule", (polyRTSFunction)&PolyLoadModule }, { "PolyLoadHierarchy", (polyRTSFunction)&PolyLoadHierarchy }, { "PolyGetModuleDirectory", (polyRTSFunction)&PolyGetModuleDirectory }, { NULL, NULL } // End of list. }; diff --git a/libpolyml/winbasicio.cpp b/libpolyml/winbasicio.cpp index 335a76a5..d3617fd9 100644 --- a/libpolyml/winbasicio.cpp +++ b/libpolyml/winbasicio.cpp @@ -1,1475 +1,1439 @@ /* Title: Basic IO for Windows. Copyright (c) 2000, 2015-2019 David C. J. Matthews This was split from the common code for Unix and Windows. Portions of this code are derived from the original stream io package copyright CUTS 1983-2000. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifdef HAVE_CONFIG_H #include "config.h" #elif defined(_WIN32) #include "winconfig.h" #else #error "No configuration file" #endif #ifdef HAVE_FCNTL_H #include #endif #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_STAT_H #include #endif #ifdef HAVE_ASSERT_H #include #define ASSERT(x) assert(x) #else #define ASSERT(x) 0 #endif #ifdef HAVE_ERRNO_H #include #endif #ifdef HAVE_SIGNAL_H #include #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_ALLOCA_H #include #endif #ifdef HAVE_IO_H #include #endif #ifdef HAVE_SYS_PARAM_H #include #endif #ifdef HAVE_SYS_IOCTL_H #include #endif #ifdef HAVE_SYS_TIME_H #include #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_POLL_H #include #endif #ifdef HAVE_STRING_H #include #endif #ifdef HAVE_SYS_SELECT_H #include #endif #ifdef HAVE_MALLOC_H #include #endif #ifdef HAVE_DIRECT_H #include #endif #ifdef HAVE_STDIO_H #include #endif #include #include #include #ifndef INFTIM #define INFTIM (-1) #endif #include #include "globals.h" #include "basicio.h" #include "sys.h" #include "gc.h" #include "run_time.h" #include "machine_dep.h" #include "arb.h" #include "processes.h" #include "diagnostics.h" #include "io_internal.h" #include "scanaddrs.h" #include "polystring.h" #include "mpoly.h" #include "save_vec.h" #include "rts_module.h" #include "locking.h" #include "rtsentry.h" #include "timing.h" #include "winstartup.h" #define NOMEMORY ERROR_NOT_ENOUGH_MEMORY #define STREAMCLOSED ERROR_INVALID_HANDLE #define FILEDOESNOTEXIST ERROR_FILE_NOT_FOUND #define ERRORNUMBER _doserrno #ifndef O_ACCMODE #define O_ACCMODE (O_RDONLY|O_RDWR|O_WRONLY) #endif #define SAVE(x) taskData->saveVec.push(x) #ifdef _MSC_VER // Don't tell me about ISO C++ changes. #pragma warning(disable:4996) #endif extern "C" { POLYEXTERNALSYMBOL POLYUNSIGNED PolyChDir(FirstArgument threadId, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyBasicIOGeneral(FirstArgument threadId, PolyWord code, PolyWord strm, PolyWord arg); POLYEXTERNALSYMBOL POLYUNSIGNED PolyPollIODescriptors(FirstArgument threadId, PolyWord streamVec, PolyWord bitVec, PolyWord maxMillisecs); POLYEXTERNALSYMBOL POLYUNSIGNED PolyTestForInput(FirstArgument threadId, PolyWord strm, PolyWord waitMillisecs); POLYEXTERNALSYMBOL POLYUNSIGNED PolyTestForOutput(FirstArgument threadId, PolyWord strm, PolyWord waitMillisecs); } // References to the standard streams. They are only needed if we are compiling // the basis library and make a second call to get the standard streams. static PolyObject *standardInputValue, *standardOutputValue, *standardErrorValue; // Creates a new unique pipename in the appropriate format. // Utility function provided for winguiconsole and windows_specific void newPipeName(TCHAR *pipeName) { static LONG pipenum = 0; wsprintf(pipeName, _T("\\\\.\\Pipe\\PolyPipe.%08x.%08x"), GetCurrentProcessId(), InterlockedIncrement(&pipenum)); } int WinStream::fileTypeOfHandle(HANDLE hStream) { switch (GetFileType(hStream)) { case FILE_TYPE_PIPE: return FILEKIND_PIPE; case FILE_TYPE_CHAR: return FILEKIND_TTY;// Or a device? case FILE_TYPE_DISK: return FILEKIND_FILE; default: if (GetLastError() == 0) return FILEKIND_UNKNOWN; // Error or unknown. else return FILEKIND_ERROR; } } void WinStream::unimplemented(TaskData *taskData) { // Called on the random access functions raise_syscall(taskData, "Position error", ERROR_NOT_SUPPORTED); } // Backwards compatibility. This should now be done in ML. void WinStream::waitUntilAvailable(TaskData *taskData) { while (!testForInput(taskData, 1000)) { } } void WinStream::waitUntilOutputPossible(TaskData *taskData) { while (!testForOutput(taskData, 1000)) { } } WinInOutStream::WinInOutStream() { hStream = hEvent = INVALID_HANDLE_VALUE; buffer = 0; currentInBuffer = currentPtr = 0; endOfStream = false; buffSize = 4096; // Seems like a good number ZeroMemory(&overlap, sizeof(overlap)); isText = false; isRead = true; } WinInOutStream::~WinInOutStream() { free(buffer); } void WinInOutStream::openFile(TaskData * taskData, TCHAR *name, openMode mode, bool isT) { isRead = mode == OPENREAD; isText = isT; ASSERT(hStream == INVALID_HANDLE_VALUE); // We should never reuse an object. buffer = (byte*)malloc(buffSize); if (buffer == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); // Create a manual reset event with state=signalled. This means // that no operation is in progress. hEvent = CreateEvent(NULL, TRUE, TRUE, NULL); overlap.hEvent = hEvent; switch (mode) { case OPENREAD: hStream = CreateFile(name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL); break; case OPENWRITE: hStream = CreateFile(name, GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_FLAG_OVERLAPPED, NULL); break; case OPENAPPEND: hStream = CreateFile(name, GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_ALWAYS, FILE_FLAG_OVERLAPPED, NULL); break; } if (hStream == INVALID_HANDLE_VALUE) raise_syscall(taskData, "CreateFile failed", GetLastError()); // Start a read immediately so that there is something in the buffer. switch (mode) { case OPENREAD: if(!beginReading()) raise_syscall(taskData, "Read failure", GetLastError()); break; case OPENWRITE: break; case OPENAPPEND: { // We could use the special 0xfff... value in the overlapped structure for this // but that would mess up getPos/endPos. LARGE_INTEGER fileSize; if (!GetFileSizeEx(hStream, &fileSize)) raise_syscall(taskData, "Stream is not a file", GetLastError()); setOverlappedPos(fileSize.QuadPart); } break; } } // This is only used to set up standard output. // Now also used for Windows.execute. bool WinInOutStream::openHandle(HANDLE hndl, openMode mode, bool isT) { // Need to check the handle. It seems DuplicateHandle actually allows an invalid handle if (hndl == INVALID_HANDLE_VALUE) { SetLastError(ERROR_INVALID_HANDLE); return false; } isRead = mode == OPENREAD; isText = isT; ASSERT(hStream == INVALID_HANDLE_VALUE); // We should never reuse an object. buffer = (byte*)malloc(buffSize); if (buffer == 0) { SetLastError(NOMEMORY); return false; } hEvent = CreateEvent(NULL, TRUE, TRUE, NULL); overlap.hEvent = hEvent; // Duplicate the handle so we can safely close it. if (!DuplicateHandle(GetCurrentProcess(), hndl, GetCurrentProcess(), &hStream, 0, FALSE, DUPLICATE_SAME_ACCESS)) return false; if (isRead) return beginReading(); return true; } // Start reading. This may complete immediately. bool WinInOutStream::beginReading() { if (!ReadFile(hStream, buffer, buffSize, NULL, &overlap)) { switch (GetLastError()) { case ERROR_HANDLE_EOF: // We get ERROR_BROKEN_PIPE as EOF on a pipe. case ERROR_BROKEN_PIPE: endOfStream = true; case ERROR_IO_PENDING: return true; default: return false; } } return true; } void WinInOutStream::closeEntry(TaskData *taskData) { if (isRead) { if (WaitForSingleObject(hEvent, 0) == WAIT_TIMEOUT) // Something is in progress. CancelIoEx(hStream, &overlap); } else flushOut(taskData); PLocker locker(&lock); if (!CloseHandle(hStream)) raise_syscall(taskData, "CloseHandle failed", GetLastError()); hStream = INVALID_HANDLE_VALUE; CloseHandle(hEvent); hEvent = INVALID_HANDLE_VALUE; } // Make sure that everything has been written. void WinInOutStream::flushOut(TaskData *taskData) { while (currentInBuffer != 0) { // If currentInBuffer is not zero we have an operation in progress. waitUntilOutputPossible(taskData); // canOutput will test the result and may update currentInBuffer. // We may not have written everything so check and repeat if necessary. if (currentInBuffer != 0) writeStream(taskData, NULL, 0); } } size_t WinInOutStream::readStream(TaskData *taskData, byte *base, size_t length) { PLocker locker(&lock); if (endOfStream) return 0; size_t copied = 0; // Copy as much as we can from the buffer. while (currentPtr < currentInBuffer && copied < length) { byte b = buffer[currentPtr++]; // In text mode we want to return NL for CRNL. Assume that this is // properly formatted and simply skip CRs. It's not clear what to return // if it isn't properly formatted and the user can always open it as binary // and do the conversion. if (!isText || b != '\r') base[copied++] = b; } // If we have exhausted the buffer we start a new read. while (isText && currentPtr < currentInBuffer && buffer[currentPtr] == '\r') currentPtr++; if (currentInBuffer == currentPtr) { // We need to start a new read currentInBuffer = currentPtr = 0; if (!beginReading()) raise_syscall(taskData, "Read failure", GetLastError()); } return copied; } // This actually does most of the work. In particular for text streams we may have a // block that consists only of CRs. bool WinInOutStream::isAvailable(TaskData *taskData) { while (1) { { PLocker locker(&lock); // It is available if we have something in the buffer or we're at EOF if (currentInBuffer < currentPtr || endOfStream) return true; // We should have had a read in progress. DWORD bytesRead = 0; if (!GetOverlappedResult(hStream, &overlap, &bytesRead, FALSE)) { DWORD err = GetLastError(); switch (err) { case ERROR_HANDLE_EOF: case ERROR_BROKEN_PIPE: // We've had EOF - That result is available endOfStream = true; return true; case ERROR_IO_INCOMPLETE: // It's still in progress. return false; default: raise_syscall(taskData, "GetOverlappedResult failed", err); } } // The next read must be after this. setOverlappedPos(getOverlappedPos() + bytesRead); currentInBuffer = bytesRead; // If this is a text stream skip CRs. while (isText && currentPtr < currentInBuffer && buffer[currentPtr] == '\r') currentPtr++; // If we have some real data it can be read now if (currentPtr < currentInBuffer) return true; } // Try again. if (!beginReading()) // And loop raise_syscall(taskData, "Read failure", GetLastError()); } } bool WinInOutStream::testForInput(TaskData *taskData, unsigned waitMilliSecs) { if (isAvailable(taskData)) return true; if (waitMilliSecs != 0) { WaitHandle waiter(hEvent, waitMilliSecs); processes->ThreadPauseForIO(taskData, &waiter); } return false; } int WinInOutStream::poll(TaskData *taskData, int test) { if (test & POLL_BIT_IN) { if (testForInput(taskData, 0)) return POLL_BIT_IN; } if (test & POLL_BIT_OUT) { if (testForOutput(taskData, 0)) return POLL_BIT_OUT; } return 0; } // Random access functions uint64_t WinInOutStream::getPos(TaskData *taskData) { if (GetFileType(hStream) != FILE_TYPE_DISK) raise_syscall(taskData, "Stream is not a file", ERROR_SEEK_ON_DEVICE); PLocker locker(&lock); if (isRead) return getOverlappedPos() - currentInBuffer + currentPtr; else return getOverlappedPos() + currentInBuffer; } void WinInOutStream::setPos(TaskData *taskData, uint64_t pos) { if (GetFileType(hStream) != FILE_TYPE_DISK) raise_syscall(taskData, "Stream is not a file", ERROR_SEEK_ON_DEVICE); // Need to wait until any pending operation is complete. If this is a write // we need to flush anything before changing the position. if (isRead) { while (WaitForSingleObject(hEvent, 0) == WAIT_TIMEOUT) { WaitHandle waiter(hEvent, 1000); processes->ThreadPauseForIO(taskData, &waiter); } } else flushOut(taskData); PLocker locker(&lock); setOverlappedPos(pos); // Discard any unread data and start reading at the new position. currentInBuffer = currentPtr = 0; endOfStream = false; if (isRead && !beginReading()) raise_syscall(taskData, "Read failure", GetLastError()); } uint64_t WinInOutStream::fileSize(TaskData *taskData) { LARGE_INTEGER fileSize; if (!GetFileSizeEx(hStream, &fileSize)) raise_syscall(taskData, "Stream is not a file", GetLastError()); return fileSize.QuadPart; } bool WinInOutStream::canOutput(TaskData *taskData) { if (isRead) unimplemented(taskData); PLocker locker(&lock); // If the buffer is empty we're fine. if (currentInBuffer == 0) return true; // Otherwise there is an operation in progress. Has it finished? DWORD bytesWritten = 0; if (!GetOverlappedResult(hStream, &overlap, &bytesWritten, FALSE)) { DWORD err = GetLastError(); if (err == ERROR_IO_INCOMPLETE) return false; else raise_syscall(taskData, "GetOverlappedResult failed", err); } setOverlappedPos(getOverlappedPos() + bytesWritten); // If we haven't written everything copy down what we have left. if (bytesWritten < currentInBuffer) memmove(buffer, buffer + bytesWritten, currentInBuffer - bytesWritten); currentInBuffer -= bytesWritten; // This will then be written before anything else. return true; } bool WinInOutStream::testForOutput(TaskData *taskData, unsigned waitMilliSecs) { if (canOutput(taskData)) return true; if (waitMilliSecs != 0) { WaitHandle waiter(hEvent, waitMilliSecs); processes->ThreadPauseForIO(taskData, &waiter); } return false; } // Write data. N.B. This is also used with zero data from closeEntry. size_t WinInOutStream::writeStream(TaskData *taskData, byte *base, size_t length) { if (isRead) unimplemented(taskData); PLocker locker(&lock); // Copy as much as we can into the buffer. size_t copied = 0; while (currentInBuffer < buffSize && copied < length) { if (isText && base[copied] == '\n') { // Put in a CR but make sure we've space for both. if (currentInBuffer == buffSize - 1) break; // Exit the loop with what we've done. buffer[currentInBuffer++] = '\r'; } buffer[currentInBuffer++] = base[copied++]; } // Write what's in the buffer. if (!WriteFile(hStream, buffer, currentInBuffer, NULL, &overlap)) { DWORD dwErr = GetLastError(); if (dwErr != ERROR_IO_PENDING) raise_syscall(taskData, "WriteFile failed", dwErr); } // Even if it actually succeeded we still pick up the result in canOutput. return copied; // Return what we copied. } /* Open a file in the required mode. */ static Handle openWinFile(TaskData *taskData, Handle filename, openMode mode, bool isAppend, bool isBinary) { TempString cFileName(filename->Word()); // Get file name if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); try { WinInOutStream *stream = new WinInOutStream(); stream->openFile(taskData, cFileName, mode, !isBinary); return MakeVolatileWord(taskData, stream); } catch (std::bad_alloc&) { raise_syscall(taskData, "Insufficient memory", NOMEMORY); } } /* Read into an array. */ // We can't combine readArray and readString because we mustn't compute the // destination of the data in readArray until after any GC. static Handle readArray(TaskData *taskData, Handle stream, Handle args, bool/*isText*/) { WinStream *strm = *(WinStream**)(stream->WordP()); if (strm == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); /* The isText argument is ignored in both Unix and Windows but is provided for future use. Windows remembers the mode used when the file was opened to determine whether to translate CRLF into LF. */ // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); // First test to see if we have input available. // These tests may result in a GC if another thread is running. strm->waitUntilAvailable(taskData); // We can now try to read without blocking. // Actually there's a race here in the unlikely situation that there // are multiple threads sharing the same low-level reader. They could // both detect that input is available but only one may succeed in // reading without blocking. This doesn't apply where the threads use // the higher-level IO interfaces in ML which have their own mutexes. byte *base = DEREFHANDLE(args)->Get(0).AsObjPtr()->AsBytePtr(); POLYUNSIGNED offset = getPolyUnsigned(taskData, DEREFWORDHANDLE(args)->Get(1)); size_t length = getPolyUnsigned(taskData, DEREFWORDHANDLE(args)->Get(2)); size_t haveRead = strm->readStream(taskData, base + offset, length); return Make_fixed_precision(taskData, haveRead); // Success. } /* Return input as a string. We don't actually need both readArray and readString but it's useful to have both to reduce unnecessary garbage. The IO library will construct one from the other but the higher levels choose the appropriate function depending on need. */ static Handle readString(TaskData *taskData, Handle stream, Handle args, bool/*isText*/) { size_t length = getPolyUnsigned(taskData, DEREFWORD(args)); - WinStream *strm; - // Legacy: during the bootstrap we will have old format references. - if (stream->Word().IsTagged() && stream->Word().UnTagged() == 0) - strm = standardInput; - else strm = *(WinStream**)(stream->WordP()); + WinStream *strm = *(WinStream**)(stream->WordP()); if (strm == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); // First test to see if we have input available. // These tests may result in a GC if another thread is running. strm->waitUntilAvailable(taskData); // We can now try to read without blocking. // We previously allocated the buffer on the stack but that caused // problems with multi-threading at least on Mac OS X because of // stack exhaustion. We limit the space to 100k. */ if (length > 102400) length = 102400; byte *buff = (byte*)malloc(length); if (buff == 0) raise_syscall(taskData, "Unable to allocate buffer", NOMEMORY); try { size_t haveRead = strm->readStream(taskData, buff, length); Handle result = SAVE(C_string_to_Poly(taskData, (char*)buff, haveRead)); free(buff); return result; } catch (...) { free(buff); throw; } } static Handle writeArray(TaskData *taskData, Handle stream, Handle args, bool/*isText*/) { // The isText argument is ignored in both Unix and Windows but // is provided for future use. Windows remembers the mode used // when the file was opened to determine whether to translate // LF into CRLF. - WinStream *strm; - // Legacy: During the bootstrap we may have old-format file descriptors - // which were assumed to be persistent. - if (stream->Word().IsTagged() && stream->Word().UnTagged() == 1) - { - if (standardOutputValue == 0) - { - stream = MakeVolatileWord(taskData, standardOutput); - standardOutputValue = stream->WordP(); - } - else stream = taskData->saveVec.push(standardOutputValue); - } - strm = *(WinStream**)(stream->WordP()); + WinStream *strm = *(WinStream**)(stream->WordP()); if (strm == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); strm->waitUntilOutputPossible(taskData); PolyWord base = DEREFWORDHANDLE(args)->Get(0); POLYUNSIGNED offset = getPolyUnsigned(taskData, DEREFWORDHANDLE(args)->Get(1)); size_t length = getPolyUnsigned(taskData, DEREFWORDHANDLE(args)->Get(2)); /* We don't actually handle cases of blocking on output. */ byte *toWrite = base.AsObjPtr()->AsBytePtr(); size_t haveWritten = strm->writeStream(taskData, toWrite + offset, length); return Make_fixed_precision(taskData, haveWritten); } Handle pollTest(TaskData *taskData, Handle stream) { WinStream *strm = *(WinStream**)(stream->WordP()); return Make_fixed_precision(taskData, strm->pollTest()); } // Poll file descriptors. Also used with empty descriptors as OS.Process.sleep. // Takes a vector of io descriptors, a vector of bits to test // and a time to wait and returns a vector of results. // Windows: This is messy because "select" only works on sockets. // Do the best we can. POLYEXTERNALSYMBOL POLYUNSIGNED PolyPollIODescriptors(FirstArgument threadId, PolyWord streamVector, PolyWord bitVector, PolyWord maxMillisecs) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); unsigned maxMilliseconds = (unsigned)maxMillisecs.UnTaggedUnsigned(); Handle result = 0; try { PolyObject *strmVec = streamVector.AsObjPtr(); PolyObject *bitVec = bitVector.AsObjPtr(); POLYUNSIGNED nDesc = strmVec->Length(); ASSERT(nDesc == bitVec->Length()); // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); /* Simply do a non-blocking poll. */ /* Record the results in this vector. */ char *results = 0; bool haveResult = false; if (nDesc > 0) { results = (char*)alloca(nDesc); memset(results, 0, nDesc); } for (POLYUNSIGNED i = 0; i < nDesc; i++) { WinStream *strm = *(WinStream**)(strmVec->Get(i).AsObjPtr()); if (strm == NULL) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); int bits = get_C_int(taskData, bitVec->Get(i)); results[i] = strm->poll(taskData, bits); if (results[i] != 0) haveResult = true; } if (haveResult == 0 && maxMilliseconds != 0) { /* Poll failed - treat as time out. */ WaitHandle waiter(NULL, maxMilliseconds); processes->ThreadPauseForIO(taskData, &waiter); } /* Copy the results to a result vector. */ result = alloc_and_save(taskData, nDesc); for (POLYUNSIGNED j = 0; j < nDesc; j++) (DEREFWORDHANDLE(result))->Set(j, TAGGED(results[j])); } catch (KillException &) { processes->ThreadExit(taskData); // TestAnyEvents may test for kill } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } // Directory functions. class WinDirData { public: HANDLE hFind; /* FindFirstFile handle */ WIN32_FIND_DATA lastFind; int fFindSucceeded; }; static Handle openDirectory(TaskData *taskData, Handle dirname) { // Get the directory name but add on two characters for the \* plus one for the NULL. POLYUNSIGNED length = PolyStringLength(dirname->Word()); TempString dirName((TCHAR*)malloc((length + 3) * sizeof(TCHAR))); if (dirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); Poly_string_to_C(dirname->Word(), dirName, length + 2); // Tack on \* to the end so that we find all files in the directory. lstrcat(dirName, _T("\\*")); WinDirData *pData = new WinDirData; // TODO: Handle failue HANDLE hFind = FindFirstFile(dirName, &pData->lastFind); if (hFind == INVALID_HANDLE_VALUE) raise_syscall(taskData, "FindFirstFile failed", GetLastError()); pData->hFind = hFind; /* There must be at least one file which matched. */ pData->fFindSucceeded = 1; return MakeVolatileWord(taskData, pData); } /* Return the next entry from the directory, ignoring current and parent arcs ("." and ".." in Windows and Unix) */ Handle readDirectory(TaskData *taskData, Handle stream) { WinDirData *pData = *(WinDirData**)(stream->WordP()); // In a Volatile if (pData == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); Handle result = NULL; // The next entry to read is already in the buffer. FindFirstFile // both opens the directory and returns the first entry. If // fFindSucceeded is false we have already reached the end. if (!pData->fFindSucceeded) return SAVE(EmptyString(taskData)); while (result == NULL) { WIN32_FIND_DATA *pFind = &(pData->lastFind); if (!((pFind->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && (lstrcmp(pFind->cFileName, _T(".")) == 0 || lstrcmp(pFind->cFileName, _T("..")) == 0))) { result = SAVE(C_string_to_Poly(taskData, pFind->cFileName)); } /* Get the next entry. */ if (!FindNextFile(pData->hFind, pFind)) { DWORD dwErr = GetLastError(); if (dwErr == ERROR_NO_MORE_FILES) { pData->fFindSucceeded = 0; if (result == NULL) return SAVE(EmptyString(taskData)); } } } return result; } Handle rewindDirectory(TaskData *taskData, Handle stream, Handle dirname) { WinDirData *pData = *(WinDirData**)(stream->WordP()); // In a SysWord if (pData == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); // There's no rewind - close and reopen. FindClose(pData->hFind); POLYUNSIGNED length = PolyStringLength(dirname->Word()); TempString dirName((TCHAR*)malloc((length + 3) * sizeof(TCHAR))); if (dirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); Poly_string_to_C(dirname->Word(), dirName, length + 2); // Tack on \* to the end so that we find all files in the directory. lstrcat(dirName, _T("\\*")); HANDLE hFind = FindFirstFile(dirName, &(pData->lastFind)); if (hFind == INVALID_HANDLE_VALUE) raise_syscall(taskData, "FindFirstFile failed", GetLastError()); pData->hFind = hFind; /* There must be at least one file which matched. */ pData->fFindSucceeded = 1; return Make_fixed_precision(taskData, 0); } static Handle closeDirectory(TaskData *taskData, Handle stream) { WinDirData *pData = *(WinDirData**)(stream->WordP()); // In a SysWord if (pData != 0) { FindClose(pData->hFind); delete(pData); *((WinDirData**)stream->WordP()) = 0; // Clear this - no longer valid } return Make_fixed_precision(taskData, 0); } /* change_dirc - this is called directly and not via the dispatch function. */ static Handle change_dirc(TaskData *taskData, Handle name) /* Change working directory. */ { TempString cDirName(name->Word()); if (cDirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (SetCurrentDirectory(cDirName) == FALSE) raise_syscall(taskData, "SetCurrentDirectory failed", GetLastError()); return SAVE(TAGGED(0)); } // External call POLYUNSIGNED PolyChDir(FirstArgument threadId, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedArg = taskData->saveVec.push(arg); try { (void)change_dirc(taskData, pushedArg); } catch (...) { } // If an ML exception is raised taskData->saveVec.reset(reset); // Ensure the save vec is reset taskData->PostRTSCall(); return TAGGED(0).AsUnsigned(); // Result is unit } /* Test for a directory. */ Handle isDir(TaskData *taskData, Handle name) { TempString cDirName(name->Word()); if (cDirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); DWORD dwRes = GetFileAttributes(cDirName); if (dwRes == 0xFFFFFFFF) raise_syscall(taskData, "GetFileAttributes failed", GetLastError()); if (dwRes & FILE_ATTRIBUTE_DIRECTORY) return Make_fixed_precision(taskData, 1); else return Make_fixed_precision(taskData, 0); } /* Get absolute canonical path name. */ Handle fullPath(TaskData *taskData, Handle filename) { TempString cFileName; /* Special case of an empty string. */ if (PolyStringLength(filename->Word()) == 0) cFileName = _tcsdup(_T(".")); else cFileName = Poly_string_to_T_alloc(filename->Word()); if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); // Get the length DWORD dwRes = GetFullPathName(cFileName, 0, NULL, NULL); if (dwRes == 0) raise_syscall(taskData, "GetFullPathName failed", GetLastError()); TempString resBuf((TCHAR*)malloc(dwRes * sizeof(TCHAR))); if (resBuf == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); // When the length is enough the result is the length excluding the null DWORD dwRes1 = GetFullPathName(cFileName, dwRes, resBuf, NULL); if (dwRes1 == 0 || dwRes1 >= dwRes) raise_syscall(taskData, "GetFullPathName failed", GetLastError()); /* Check that the file exists. GetFullPathName doesn't do that. */ dwRes = GetFileAttributes(resBuf); if (dwRes == 0xffffffff) raise_syscall(taskData, "File does not exist", FILEDOESNOTEXIST); return(SAVE(C_string_to_Poly(taskData, resBuf))); } /* Get file modification time. This returns the value in the time units and from the base date used by timing.c. c.f. filedatec */ Handle modTime(TaskData *taskData, Handle filename) { TempString cFileName(filename->Word()); if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); /* There are two ways to get this information. We can either use GetFileTime if we are able to open the file for reading but if it is locked we won't be able to. FindFirstFile is the other alternative. We have to check that the file name does not contain '*' or '?' otherwise it will try to "glob" this, which isn't what we want here. */ WIN32_FIND_DATA wFind; HANDLE hFind; const TCHAR *p; for(p = cFileName; *p; p++) if (*p == '*' || *p == '?') raise_syscall(taskData, "Invalid filename", STREAMCLOSED); hFind = FindFirstFile(cFileName, &wFind); if (hFind == INVALID_HANDLE_VALUE) raise_syscall(taskData, "FindFirstFile failed", GetLastError()); FindClose(hFind); return Make_arb_from_Filetime(taskData, wFind.ftLastWriteTime); } /* Get file size. */ Handle fileSize(TaskData *taskData, Handle filename) { TempString cFileName(filename->Word()); if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); /* Similar to modTime*/ WIN32_FIND_DATA wFind; HANDLE hFind; const TCHAR *p; for(p = cFileName; *p; p++) if (*p == '*' || *p == '?') raise_syscall(taskData, "Invalid filename", STREAMCLOSED); hFind = FindFirstFile(cFileName, &wFind); if (hFind == INVALID_HANDLE_VALUE) raise_syscall(taskData, "FindFirstFile failed", GetLastError()); FindClose(hFind); return Make_arb_from_32bit_pair(taskData, wFind.nFileSizeHigh, wFind.nFileSizeLow); } /* Set file modification and access times. */ Handle setTime(TaskData *taskData, Handle fileName, Handle fileTime) { TempString cFileName(fileName->Word()); if (cFileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); // The only way to set the time is to open the file and use SetFileTime. FILETIME ft; /* Get the file time. */ getFileTimeFromArb(taskData, fileTime, &ft); /* Open an existing file with write access. We need that for SetFileTime. */ HANDLE hFile = CreateFile(cFileName, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) raise_syscall(taskData, "CreateFile failed", GetLastError()); /* Set the file time. */ if (!SetFileTime(hFile, NULL, &ft, &ft)) { int nErr = GetLastError(); CloseHandle(hFile); raise_syscall(taskData, "SetFileTime failed", nErr); } CloseHandle(hFile); return Make_fixed_precision(taskData, 0); } /* Rename a file. */ Handle renameFile(TaskData *taskData, Handle oldFileName, Handle newFileName) { TempString oldName(oldFileName->Word()), newName(newFileName->Word()); if (oldName == 0 || newName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (! MoveFileEx(oldName, newName, MOVEFILE_REPLACE_EXISTING)) raise_syscall(taskData, "MoveFileEx failed", GetLastError()); return Make_fixed_precision(taskData, 0); } /* Access right requests passed in from ML. */ #define FILE_ACCESS_READ 1 #define FILE_ACCESS_WRITE 2 #define FILE_ACCESS_EXECUTE 4 /* Get access rights to a file. */ Handle fileAccess(TaskData *taskData, Handle name, Handle rights) { TempString fileName(name->Word()); if (fileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); int rts = get_C_int(taskData, DEREFWORD(rights)); /* Test whether the file is read-only. This is, of course, not what was asked but getting anything more is really quite complicated. I don't see how we can find out if a file is executable (maybe check if the extension is .exe, .com or .bat?). It would be possible, in NT, to examine the access structures but that seems far too complicated. Leave it for the moment. */ DWORD dwRes = GetFileAttributes(fileName); if (dwRes == 0xffffffff) return Make_fixed_precision(taskData, 0); /* If we asked for write access but it is read-only we return false. */ if ((dwRes & FILE_ATTRIBUTE_READONLY) && (rts & FILE_ACCESS_WRITE)) return Make_fixed_precision(taskData, 0); else return Make_fixed_precision(taskData, 1); } /* IO_dispatchc. Called from assembly code module. */ static Handle IO_dispatch_c(TaskData *taskData, Handle args, Handle strm, Handle code) { unsigned c = get_C_unsigned(taskData, DEREFWORD(code)); switch (c) { case 0: // Return standard input. // This and the next two are normally only called once during start-up. // The exception is when we build the basis library during bootstrap. // We need to maintain the invariant that each WinStream object is referenced // by precisely one volatile word in order to be able to delete it when we close it. { if (standardInputValue != 0) return taskData->saveVec.push(standardInputValue); Handle stdStrm = MakeVolatileWord(taskData, standardInput); standardInputValue = stdStrm->WordP(); return stdStrm; } case 1: // Return standard output { if (standardOutputValue != 0) return taskData->saveVec.push(standardOutputValue); Handle stdStrm = MakeVolatileWord(taskData, standardOutput); standardOutputValue = stdStrm->WordP(); return stdStrm; } case 2: // Return standard error { if (standardErrorValue != 0) return taskData->saveVec.push(standardErrorValue); Handle stdStrm = MakeVolatileWord(taskData, standardError); standardErrorValue = stdStrm->WordP(); return stdStrm; } case 3: /* Open file for text input. */ return openWinFile(taskData, args, OPENREAD, false, false); case 4: /* Open file for binary input. */ return openWinFile(taskData, args, OPENREAD, false, true); case 5: /* Open file for text output. */ return openWinFile(taskData, args, OPENWRITE, false, false); case 6: /* Open file for binary output. */ return openWinFile(taskData, args, OPENWRITE, false, true); case 13: /* Open text file for appending. */ /* The IO library definition leaves it open whether this should use "append mode" or not. */ return openWinFile(taskData, args, OPENWRITE, true, false); case 14: /* Open binary file for appending. */ return openWinFile(taskData, args, OPENWRITE, true, true); case 7: /* Close file */ { // During the bootstrap we will have old format references. if (strm->Word().IsTagged()) return Make_fixed_precision(taskData, 0); WinStream *stream = *(WinStream **)(strm->WordP()); // May already have been closed. if (stream != 0) { try { stream->closeEntry(taskData); delete(stream); *(WinStream **)(strm->WordP()) = 0; } catch (...) { // If there was an error and we've raised an exception. delete(stream); *(WinStream **)(strm->WordP()) = 0; throw; } } return Make_fixed_precision(taskData, 0); } case 8: /* Read text into an array. */ return readArray(taskData, strm, args, true); case 9: /* Read binary into an array. */ return readArray(taskData, strm, args, false); case 10: /* Get text as a string. */ return readString(taskData, strm, args, true); case 11: /* Write from memory into a text file. */ return writeArray(taskData, strm, args, true); case 12: /* Write from memory into a binary file. */ return writeArray(taskData, strm, args, false); case 15: /* Return recommended buffer size. */ // This is a guess but 4k seems reasonable. return Make_fixed_precision(taskData, 4096); case 16: /* See if we can get some input. */ { WinStream *stream = *(WinStream **)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); return Make_fixed_precision(taskData, stream->testForInput(taskData, 0) ? 1 : 0); } case 17: // Return the number of bytes available. PrimIO.avail. { WinStream *stream = *(WinStream**)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); uint64_t endOfStream = stream->fileSize(taskData); // May raise an exception if this isn't a file. uint64_t current = stream->getPos(taskData); return Make_fixed_precision(taskData, endOfStream - current); } case 18: // Get position on stream. PrimIO.getPos { WinStream *stream = *(WinStream**)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); // Get the current position in the stream. This is used to test // for the availability of random access so it should raise an // exception if setFilePos or endFilePos would fail. return Make_arbitrary_precision(taskData, stream->getPos(taskData)); } case 19: // Seek to position on stream. PrimIO.setPos { WinStream *stream = *(WinStream**)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); // TODO: This doesn't necessarily return a 64-bit value. uint64_t position = (uint64_t)getPolyUnsigned(taskData, DEREFWORD(args)); stream->setPos(taskData, position); return Make_arbitrary_precision(taskData, 0); } case 20: // Return position at end of stream. PrimIO.endPos. { WinStream *stream = *(WinStream**)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); return Make_arbitrary_precision(taskData, stream->fileSize(taskData)); } case 21: /* Get the kind of device underlying the stream. */ { WinStream *stream = *(WinStream**)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); return Make_fixed_precision(taskData, stream->fileKind()); } case 22: /* Return the polling options allowed on this descriptor. */ return pollTest(taskData, strm); // case 23: /* Poll the descriptor, waiting forever. */ // return pollDescriptors(taskData, args, 1); // case 24: /* Poll the descriptor, waiting for the time requested. */ // return pollDescriptors(taskData, args, 0); // case 25: /* Poll the descriptor, returning immediately.*/ // return pollDescriptors(taskData, args, 2); case 26: /* Get binary as a vector. */ return readString(taskData, strm, args, false); case 27: /* Block until input is available. */ { WinStream *stream = *(WinStream **)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); stream->waitUntilAvailable(taskData); return Make_fixed_precision(taskData, 0); } case 28: /* Test whether output is possible. */ { WinStream *stream = *(WinStream **)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); return Make_fixed_precision(taskData, stream->testForOutput(taskData, 0) ? 1 : 0); } case 29: /* Block until output is possible. */ { WinStream *stream = *(WinStream **)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); // We should check for interrupts even if we're not going to block. processes->TestAnyEvents(taskData); stream->waitUntilOutputPossible(taskData); return Make_fixed_precision(taskData, 0); } - /* Functions added for Posix structure. */ - case 30: /* Return underlying file descriptor. */ - { - // Legacy: This was previously used LibrarySupport.wrapInFileDescr - // to see if a stream was one of the standard streams. - if (strm->Word().IsTagged()) - return strm; - else - { - WinStream *stream = *(WinStream**)(strm->WordP()); - if (stream == standardInput) - return Make_fixed_precision(taskData, 0); - else if (stream == standardOutput) - return Make_fixed_precision(taskData, 1); - else if (stream == standardError) - return Make_fixed_precision(taskData, 2); - else return Make_fixed_precision(taskData, 3 /* > 2 */); - } - } - /* Directory functions. */ case 50: /* Open a directory. */ return openDirectory(taskData, args); case 51: /* Read a directory entry. */ return readDirectory(taskData, strm); case 52: /* Close the directory */ return closeDirectory(taskData, strm); case 53: /* Rewind the directory. */ return rewindDirectory(taskData, strm, args); case 54: /* Get current working directory. */ { DWORD space = GetCurrentDirectory(0, NULL); if (space == 0) raise_syscall(taskData, "GetCurrentDirectory failed", GetLastError()); TempString buff((TCHAR*)malloc(space * sizeof(TCHAR))); if (buff == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (GetCurrentDirectory(space, buff) == 0) raise_syscall(taskData, "GetCurrentDirectory failed", GetLastError()); return SAVE(C_string_to_Poly(taskData, buff)); } case 55: /* Create a new directory. */ { TempString dirName(args->Word()); if (dirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (!CreateDirectory(dirName, NULL)) raise_syscall(taskData, "CreateDirectory failed", GetLastError()); return Make_fixed_precision(taskData, 0); } case 56: /* Delete a directory. */ { TempString dirName(args->Word()); if (dirName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (!RemoveDirectory(dirName)) raise_syscall(taskData, "RemoveDirectory failed", GetLastError()); return Make_fixed_precision(taskData, 0); } case 57: /* Test for directory. */ return isDir(taskData, args); case 58: /* Test for symbolic link. */ { TempString fileName(args->Word()); if (fileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); DWORD dwRes = GetFileAttributes(fileName); if (dwRes == 0xFFFFFFFF) raise_syscall(taskData, "GetFileAttributes failed", GetLastError()); return Make_fixed_precision(taskData, (dwRes & FILE_ATTRIBUTE_REPARSE_POINT) ? 1 : 0); } case 59: /* Read a symbolic link. */ { // Windows has added symbolic links but reading the target is far from // straightforward. It's probably not worth trying to implement this. raise_syscall(taskData, "Symbolic links are not implemented", 0); return taskData->saveVec.push(TAGGED(0)); /* To keep compiler happy. */ } case 60: /* Return the full absolute path name. */ return fullPath(taskData, args); case 61: /* Modification time. */ return modTime(taskData, args); case 62: /* File size. */ return fileSize(taskData, args); case 63: /* Set file time. */ return setTime(taskData, strm, args); case 64: /* Delete a file. */ { TempString fileName(args->Word()); if (fileName == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (!DeleteFile(fileName)) raise_syscall(taskData, "DeleteFile failed", GetLastError()); return Make_fixed_precision(taskData, 0); } case 65: /* rename a file. */ return renameFile(taskData, strm, args); case 66: /* Get access rights. */ return fileAccess(taskData, strm, args); case 67: /* Return a temporary file name. */ { DWORD dwSpace = GetTempPath(0, NULL); if (dwSpace == 0) raise_syscall(taskData, "GetTempPath failed", GetLastError()); TempString buff((TCHAR*)malloc((dwSpace + 12) * sizeof(TCHAR))); if (buff == 0) raise_syscall(taskData, "Insufficient memory", NOMEMORY); if (GetTempPath(dwSpace, buff) == 0) raise_syscall(taskData, "GetTempPath failed", GetLastError()); lstrcat(buff, _T("MLTEMPXXXXXX")); #if (defined(HAVE_MKSTEMP) && ! defined(UNICODE)) // mkstemp is present in the Mingw64 headers but only as ANSI not Unicode. // Set the umask to mask out access by anyone else. // mkstemp generally does this anyway. mode_t oldMask = umask(0077); int fd = mkstemp(buff); int wasError = ERRORNUMBER; (void)umask(oldMask); if (fd != -1) close(fd); else raise_syscall(taskData, "mkstemp failed", wasError); #else if (_tmktemp(buff) == 0) raise_syscall(taskData, "mktemp failed", ERRORNUMBER); int fd = _topen(buff, O_RDWR | O_CREAT | O_EXCL, 00600); if (fd != -1) close(fd); else raise_syscall(taskData, "Temporary file creation failed", ERRORNUMBER); #endif Handle res = SAVE(C_string_to_Poly(taskData, buff)); return res; } case 68: /* Get the file id. */ { /* This concept does not exist in Windows. */ /* Return a negative number. This is interpreted as "not implemented". */ return Make_fixed_precision(taskData, -1); } case 69: { // Return an index for a token. It is used in OS.IO.hash. // This is supposed to be well distributed for any 2^n but simply return // the low order part of the object address. WinStream *stream = *(WinStream **)(strm->WordP()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); return Make_fixed_precision(taskData, (POLYUNSIGNED)((uintptr_t)(stream)) & 0xfffffff); } default: { char msg[100]; sprintf(msg, "Unknown io function: %d", c); raise_exception_string(taskData, EXC_Fail, msg); return 0; } } } // General interface to IO. Ideally the various cases will be made into // separate functions. POLYUNSIGNED PolyBasicIOGeneral(FirstArgument threadId, PolyWord code, PolyWord strm, PolyWord arg) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); Handle pushedCode = taskData->saveVec.push(code); Handle pushedStrm = taskData->saveVec.push(strm); Handle pushedArg = taskData->saveVec.push(arg); Handle result = 0; try { result = IO_dispatch_c(taskData, pushedArg, pushedStrm, pushedCode); } catch (KillException &) { processes->ThreadExit(taskData); // TestAnyEvents may test for kill } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); if (result == 0) return TAGGED(0).AsUnsigned(); else return result->Word().AsUnsigned(); } POLYEXTERNALSYMBOL POLYUNSIGNED PolyTestForInput(FirstArgument threadId, PolyWord strm, PolyWord waitMillisecs) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); bool result = false; try { WinStream *stream = *(WinStream **)(strm.AsObjPtr()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); result = stream->testForInput(taskData, (unsigned)waitMillisecs.UnTaggedUnsigned()); } catch (KillException &) { processes->ThreadExit(taskData); // TestAnyEvents may test for kill } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); return TAGGED(result? 1: 0).AsUnsigned(); } POLYEXTERNALSYMBOL POLYUNSIGNED PolyTestForOutput(FirstArgument threadId, PolyWord strm, PolyWord waitMillisecs) { TaskData *taskData = TaskData::FindTaskForId(threadId); ASSERT(taskData != 0); taskData->PreRTSCall(); Handle reset = taskData->saveVec.mark(); bool result = false; try { WinStream *stream = *(WinStream **)(strm.AsObjPtr()); if (stream == 0) raise_syscall(taskData, "Stream is closed", STREAMCLOSED); result = stream->testForOutput(taskData, (unsigned)waitMillisecs.UnTaggedUnsigned()); } catch (KillException &) { processes->ThreadExit(taskData); // TestAnyEvents may test for kill } catch (...) {} // If an ML exception is raised taskData->saveVec.reset(reset); taskData->PostRTSCall(); return TAGGED(result ? 1 : 0).AsUnsigned(); } struct _entrypts basicIOEPT[] = { { "PolyChDir", (polyRTSFunction)&PolyChDir }, { "PolyBasicIOGeneral", (polyRTSFunction)&PolyBasicIOGeneral }, { "PolyPollIODescriptors", (polyRTSFunction)&PolyPollIODescriptors }, { "PolyTestForInput", (polyRTSFunction)&PolyTestForInput }, { "PolyTestForOutput", (polyRTSFunction)&PolyTestForOutput }, { NULL, NULL } // End of list. }; class WinBasicIO : public RtsModule { public: virtual void Start(void); virtual void GarbageCollect(ScanAddress * /*process*/); }; // Declare this. It will be automatically added to the table. static WinBasicIO basicIOModule; void WinBasicIO::Start(void) { } void WinBasicIO::GarbageCollect(ScanAddress *process) { if (standardInputValue != 0) process->ScanRuntimeAddress(&standardInputValue, ScanAddress::STRENGTH_STRONG); if (standardOutputValue != 0) process->ScanRuntimeAddress(&standardOutputValue, ScanAddress::STRENGTH_STRONG); if (standardErrorValue != 0) process->ScanRuntimeAddress(&standardErrorValue, ScanAddress::STRENGTH_STRONG); } \ No newline at end of file