[llvm-commits] [llvm] r62553 - in /llvm/trunk: autoconf/configure.ac lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
Evan Cheng
echeng at apple.com
Wed Jan 21 22:48:22 PST 2009
>
>
> -#ifdef __linux__
> -#include <cxxabi.h>
> +#ifdef HAVE_LIBFFI
> +#include FFI_HEADER
Is this portable code? I am having trouble building on one of my Mac.
llvm[3]: Compiling ExternalFunctions.cpp for Debug build
ExternalFunctions.cpp:37:10: error: #include expects "FILENAME" or
<FILENAME>
Evan
>
> #endif
>
> -using std::vector;
> -
> using namespace llvm;
>
> -typedef GenericValue (*ExFunc)(FunctionType *, const
> vector<GenericValue> &);
> -static ManagedStatic<std::map<const Function *, ExFunc> > Functions;
> +typedef GenericValue (*ExFunc)(const FunctionType *,
> + const std::vector<GenericValue> &);
> +static ManagedStatic<std::map<const Function *, ExFunc> >
> ExportedFunctions;
> static std::map<std::string, ExFunc> FuncNames;
>
> +#ifdef HAVE_LIBFFI
> +typedef void (*RawFunc)(void);
> +static ManagedStatic<std::map<const Function *, RawFunc> >
> RawFunctions;
> +#endif // HAVE_LIBFFI
> +
> static Interpreter *TheInterpreter;
>
> static char getTypeID(const Type *Ty) {
> @@ -89,34 +94,181 @@
> if (FnPtr == 0) // Try calling a generic function... if it
> exists...
> FnPtr = (ExFunc)
> (intptr_t)sys::DynamicLibrary::SearchForAddressOfSymbol(
> ("lle_X_"+F->getName()).c_str());
> - if (FnPtr == 0)
> - FnPtr = (ExFunc)(intptr_t)
> - sys::DynamicLibrary::SearchForAddressOfSymbol(F->getName());
> if (FnPtr != 0)
> - Functions->insert(std::make_pair(F, FnPtr)); // Cache for later
> + ExportedFunctions->insert(std::make_pair(F, FnPtr)); // Cache
> for later
> return FnPtr;
> }
>
> +#ifdef HAVE_LIBFFI
> +static ffi_type *ffiTypeFor(const Type *Ty) {
> + switch (Ty->getTypeID()) {
> + case Type::VoidTyID: return &ffi_type_void;
> + case Type::IntegerTyID:
> + switch (cast<IntegerType>(Ty)->getBitWidth()) {
> + case 8: return &ffi_type_sint8;
> + case 16: return &ffi_type_sint16;
> + case 32: return &ffi_type_sint32;
> + case 64: return &ffi_type_sint64;
> + }
> + case Type::FloatTyID: return &ffi_type_float;
> + case Type::DoubleTyID: return &ffi_type_double;
> + case Type::PointerTyID: return &ffi_type_pointer;
> + default: break;
> + }
> + // TODO: Support other types such as StructTyID, ArrayTyID,
> OpaqueTyID, etc.
> + cerr << "Type could not be mapped for use with libffi.\n";
> + abort();
> + return NULL;
> +}
> +
> +static void *ffiValueFor(const Type *Ty, const GenericValue &AV,
> + void *ArgDataPtr) {
> + switch (Ty->getTypeID()) {
> + case Type::IntegerTyID:
> + switch (cast<IntegerType>(Ty)->getBitWidth()) {
> + case 8: {
> + int8_t *I8Ptr = (int8_t *) ArgDataPtr;
> + *I8Ptr = (int8_t) AV.IntVal.getZExtValue();
> + return ArgDataPtr;
> + }
> + case 16: {
> + int16_t *I16Ptr = (int16_t *) ArgDataPtr;
> + *I16Ptr = (int16_t) AV.IntVal.getZExtValue();
> + return ArgDataPtr;
> + }
> + case 32: {
> + int32_t *I32Ptr = (int32_t *) ArgDataPtr;
> + *I32Ptr = (int32_t) AV.IntVal.getZExtValue();
> + return ArgDataPtr;
> + }
> + case 64: {
> + int64_t *I64Ptr = (int64_t *) ArgDataPtr;
> + *I64Ptr = (int64_t) AV.IntVal.getZExtValue();
> + return ArgDataPtr;
> + }
> + }
> + case Type::FloatTyID: {
> + float *FloatPtr = (float *) ArgDataPtr;
> + *FloatPtr = AV.DoubleVal;
> + return ArgDataPtr;
> + }
> + case Type::DoubleTyID: {
> + double *DoublePtr = (double *) ArgDataPtr;
> + *DoublePtr = AV.DoubleVal;
> + return ArgDataPtr;
> + }
> + case Type::PointerTyID: {
> + void **PtrPtr = (void **) ArgDataPtr;
> + *PtrPtr = GVTOP(AV);
> + return ArgDataPtr;
> + }
> + default: break;
> + }
> + // TODO: Support other types such as StructTyID, ArrayTyID,
> OpaqueTyID, etc.
> + cerr << "Type value could not be mapped for use with libffi.\n";
> + abort();
> + return NULL;
> +}
> +
> +static bool ffiInvoke(RawFunc Fn, Function *F,
> + const std::vector<GenericValue> &ArgVals,
> + const TargetData *TD, GenericValue &Result) {
> + ffi_cif cif;
> + const FunctionType *FTy = F->getFunctionType();
> + const unsigned NumArgs = F->arg_size();
> +
> + // TODO: We don't have type information about the remaining
> arguments, because
> + // this information is never passed into
> ExecutionEngine::runFunction().
> + if (ArgVals.size() > NumArgs && F->isVarArg()) {
> + cerr << "Calling external var arg function '" << F->getName()
> + << "' is not supported by the Interpreter.\n";
> + abort();
> + }
> +
> + unsigned ArgBytes = 0;
> +
> + std::vector<ffi_type*> args(NumArgs);
> + for (Function::const_arg_iterator A = F->arg_begin(), E = F-
> >arg_end();
> + A != E; ++A) {
> + const unsigned ArgNo = A->getArgNo();
> + const Type *ArgTy = FTy->getParamType(ArgNo);
> + args[ArgNo] = ffiTypeFor(ArgTy);
> + ArgBytes += TD->getTypeStoreSize(ArgTy);
> + }
> +
> + uint8_t *ArgData = (uint8_t*) alloca(ArgBytes);
> + uint8_t *ArgDataPtr = ArgData;
> + std::vector<void*> values(NumArgs);
> + for (Function::const_arg_iterator A = F->arg_begin(), E = F-
> >arg_end();
> + A != E; ++A) {
> + const unsigned ArgNo = A->getArgNo();
> + const Type *ArgTy = FTy->getParamType(ArgNo);
> + values[ArgNo] = ffiValueFor(ArgTy, ArgVals[ArgNo], ArgDataPtr);
> + ArgDataPtr += TD->getTypeStoreSize(ArgTy);
> + }
> +
> + const Type *RetTy = FTy->getReturnType();
> + ffi_type *rtype = ffiTypeFor(RetTy);
> +
> + if (ffi_prep_cif(&cif, FFI_DEFAULT_ABI, NumArgs, rtype, &args[0])
> == FFI_OK) {
> + void *ret = NULL;
> + if (RetTy->getTypeID() != Type::VoidTyID)
> + ret = alloca(TD->getTypeStoreSize(RetTy));
> + ffi_call(&cif, Fn, ret, &values[0]);
> + switch (RetTy->getTypeID()) {
> + case Type::IntegerTyID:
> + switch (cast<IntegerType>(RetTy)->getBitWidth()) {
> + case 8: Result.IntVal = APInt(8 , *(int8_t *) ret); break;
> + case 16: Result.IntVal = APInt(16, *(int16_t*) ret); break;
> + case 32: Result.IntVal = APInt(32, *(int32_t*) ret); break;
> + case 64: Result.IntVal = APInt(64, *(int64_t*) ret); break;
> + }
> + break;
> + case Type::FloatTyID: Result.FloatVal = *(float *) ret;
> break;
> + case Type::DoubleTyID: Result.DoubleVal = *(double*) ret;
> break;
> + case Type::PointerTyID: Result.PointerVal = *(void **) ret;
> break;
> + default: break;
> + }
> + return true;
> + }
> +
> + return false;
> +}
> +#endif // HAVE_LIBFFI
> +
> GenericValue Interpreter::callExternalFunction(Function *F,
> const std::vector<GenericValue>
> &ArgVals) {
> TheInterpreter = this;
>
> // Do a lookup to see if the function is in our cache... this
> should just be a
> // deferred annotation!
> - std::map<const Function *, ExFunc>::iterator FI = Functions-
> >find(F);
> - ExFunc Fn = (FI == Functions->end()) ? lookupFunction(F) : FI-
> >second;
> - if (Fn == 0) {
> - cerr << "Tried to execute an unknown external function: "
> - << F->getType()->getDescription() << " " << F->getName()
> << "\n";
> - if (F->getName() == "__main")
> - return GenericValue();
> - abort();
> + std::map<const Function *, ExFunc>::iterator FI =
> ExportedFunctions->find(F);
> + if (ExFunc Fn = (FI == ExportedFunctions->end()) ?
> lookupFunction(F)
> + : FI->second)
> + return Fn(F->getFunctionType(), ArgVals);
> +
> +#ifdef HAVE_LIBFFI
> + std::map<const Function *, RawFunc>::iterator RF = RawFunctions-
> >find(F);
> + RawFunc RawFn;
> + if (RF == RawFunctions->end()) {
> + RawFn = (RawFunc)(intptr_t)
> + sys::DynamicLibrary::SearchForAddressOfSymbol(F->getName());
> + if (RawFn != 0)
> + RawFunctions->insert(std::make_pair(F, RawFn)); // Cache for
> later
> + } else {
> + RawFn = RF->second;
> }
>
> - // TODO: FIXME when types are not const!
> - GenericValue Result = Fn(const_cast<FunctionType*>(F-
> >getFunctionType()),
> - ArgVals);
> - return Result;
> + GenericValue Result;
> + if (RawFn != 0 && ffiInvoke(RawFn, F, ArgVals, getTargetData(),
> Result))
> + return Result;
> +#endif // HAVE_LIBFFI
> +
> + cerr << "Tried to execute an unknown external function: "
> + << F->getType()->getDescription() << " " << F->getName() <<
> "\n";
> + if (F->getName() != "__main")
> + abort();
> + return GenericValue();
> }
>
>
> @@ -125,24 +277,9 @@
> //
> extern "C" { // Don't add C++ manglings to llvm mangling :)
>
> -// void putchar(ubyte)
> -GenericValue lle_X_putchar(FunctionType *FT, const
> vector<GenericValue> &Args){
> - cout << ((char)Args[0].IntVal.getZExtValue()) << std::flush;
> - return Args[0];
> -}
> -
> -// void _IO_putc(int c, FILE* fp)
> -GenericValue lle_X__IO_putc(FunctionType *FT, const
> vector<GenericValue> &Args){
> -#ifdef __linux__
> - _IO_putc((char)Args[0].IntVal.getZExtValue(), (FILE*)
> Args[1].PointerVal);
> -#else
> - assert(0 && "Can't call _IO_putc on this platform");
> -#endif
> - return Args[0];
> -}
> -
> // void atexit(Function*)
> -GenericValue lle_X_atexit(FunctionType *FT, const
> vector<GenericValue> &Args) {
> +GenericValue lle_X_atexit(const FunctionType *FT,
> + const std::vector<GenericValue> &Args) {
> assert(Args.size() == 1);
> TheInterpreter->addAtExitHandler((Function*)GVTOP(Args[0]));
> GenericValue GV;
> @@ -151,163 +288,23 @@
> }
>
> // void exit(int)
> -GenericValue lle_X_exit(FunctionType *FT, const
> vector<GenericValue> &Args) {
> +GenericValue lle_X_exit(const FunctionType *FT,
> + const std::vector<GenericValue> &Args) {
> TheInterpreter->exitCalled(Args[0]);
> return GenericValue();
> }
>
> // void abort(void)
> -GenericValue lle_X_abort(FunctionType *FT, const
> vector<GenericValue> &Args) {
> +GenericValue lle_X_abort(const FunctionType *FT,
> + const std::vector<GenericValue> &Args) {
> raise (SIGABRT);
> return GenericValue();
> }
>
> -// void *malloc(uint)
> -GenericValue lle_X_malloc(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1 && "Malloc expects one argument!");
> - assert(isa<PointerType>(FT->getReturnType()) && "malloc must
> return pointer");
> - return PTOGV(malloc(Args[0].IntVal.getZExtValue()));
> -}
> -
> -// void *calloc(uint, uint)
> -GenericValue lle_X_calloc(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 2 && "calloc expects two arguments!");
> - assert(isa<PointerType>(FT->getReturnType()) && "calloc must
> return pointer");
> - return PTOGV(calloc(Args[0].IntVal.getZExtValue(),
> - Args[1].IntVal.getZExtValue()));
> -}
> -
> -// void *calloc(uint, uint)
> -GenericValue lle_X_realloc(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 2 && "calloc expects two arguments!");
> - assert(isa<PointerType>(FT->getReturnType()) &&"realloc must
> return pointer");
> - return PTOGV(realloc(GVTOP(Args[0]),
> Args[1].IntVal.getZExtValue()));
> -}
> -
> -// void free(void *)
> -GenericValue lle_X_free(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - free(GVTOP(Args[0]));
> - return GenericValue();
> -}
> -
> -// int atoi(char *)
> -GenericValue lle_X_atoi(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.IntVal = APInt(32, atoi((char*)GVTOP(Args[0])));
> - return GV;
> -}
> -
> -// double pow(double, double)
> -GenericValue lle_X_pow(FunctionType *FT, const vector<GenericValue>
> &Args) {
> - assert(Args.size() == 2);
> - GenericValue GV;
> - GV.DoubleVal = pow(Args[0].DoubleVal, Args[1].DoubleVal);
> - return GV;
> -}
> -
> -// double sin(double)
> -GenericValue lle_X_sin(FunctionType *FT, const vector<GenericValue>
> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.DoubleVal = sin(Args[0].DoubleVal);
> - return GV;
> -}
> -
> -// double cos(double)
> -GenericValue lle_X_cos(FunctionType *FT, const vector<GenericValue>
> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.DoubleVal = cos(Args[0].DoubleVal);
> - return GV;
> -}
> -
> -// double exp(double)
> -GenericValue lle_X_exp(FunctionType *FT, const vector<GenericValue>
> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.DoubleVal = exp(Args[0].DoubleVal);
> - return GV;
> -}
> -
> -// double sqrt(double)
> -GenericValue lle_X_sqrt(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.DoubleVal = sqrt(Args[0].DoubleVal);
> - return GV;
> -}
> -
> -// double log(double)
> -GenericValue lle_X_log(FunctionType *FT, const vector<GenericValue>
> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.DoubleVal = log(Args[0].DoubleVal);
> - return GV;
> -}
> -
> -// double floor(double)
> -GenericValue lle_X_floor(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.DoubleVal = floor(Args[0].DoubleVal);
> - return GV;
> -}
> -
> -#ifdef HAVE_RAND48
> -
> -// double drand48()
> -GenericValue lle_X_drand48(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.empty());
> - GenericValue GV;
> - GV.DoubleVal = drand48();
> - return GV;
> -}
> -
> -// long lrand48()
> -GenericValue lle_X_lrand48(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.empty());
> - GenericValue GV;
> - GV.IntVal = APInt(32, lrand48());
> - return GV;
> -}
> -
> -// void srand48(long)
> -GenericValue lle_X_srand48(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - srand48(Args[0].IntVal.getZExtValue());
> - return GenericValue();
> -}
> -
> -#endif
> -
> -// int rand()
> -GenericValue lle_X_rand(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.empty());
> - GenericValue GV;
> - GV.IntVal = APInt(32, rand());
> - return GV;
> -}
> -
> -// void srand(uint)
> -GenericValue lle_X_srand(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - srand(Args[0].IntVal.getZExtValue());
> - return GenericValue();
> -}
> -
> -// int puts(const char*)
> -GenericValue lle_X_puts(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.IntVal = APInt(32, puts((char*)GVTOP(Args[0])));
> - return GV;
> -}
> -
> -// int sprintf(sbyte *, sbyte *, ...) - a very rough implementation
> to make
> +// int sprintf(char *, const char *, ...) - a very rough
> implementation to make
> // output useful.
> -GenericValue lle_X_sprintf(FunctionType *FT, const
> vector<GenericValue> &Args) {
> +GenericValue lle_X_sprintf(const FunctionType *FT,
> + const std::vector<GenericValue> &Args) {
> char *OutputBuffer = (char *)GVTOP(Args[0]);
> const char *FmtStr = (const char *)GVTOP(Args[1]);
> unsigned ArgNo = 2;
> @@ -384,10 +381,12 @@
> return GV;
> }
>
> -// int printf(sbyte *, ...) - a very rough implementation to make
> output useful.
> -GenericValue lle_X_printf(FunctionType *FT, const
> vector<GenericValue> &Args) {
> +// int printf(const char *, ...) - a very rough implementation to
> make output
> +// useful.
> +GenericValue lle_X_printf(const FunctionType *FT,
> + const std::vector<GenericValue> &Args) {
> char Buffer[10000];
> - vector<GenericValue> NewArgs;
> + std::vector<GenericValue> NewArgs;
> NewArgs.push_back(PTOGV((void*)&Buffer[0]));
> NewArgs.insert(NewArgs.end(), Args.begin(), Args.end());
> GenericValue GV = lle_X_sprintf(FT, NewArgs);
> @@ -472,7 +471,8 @@
> }
>
> // int sscanf(const char *format, ...);
> -GenericValue lle_X_sscanf(FunctionType *FT, const
> vector<GenericValue> &args) {
> +GenericValue lle_X_sscanf(const FunctionType *FT,
> + const std::vector<GenericValue> &args) {
> assert(args.size() < 10 && "Only handle up to 10 args to sscanf
> right now!");
>
> char *Args[10];
> @@ -488,7 +488,8 @@
> }
>
> // int scanf(const char *format, ...);
> -GenericValue lle_X_scanf(FunctionType *FT, const
> vector<GenericValue> &args) {
> +GenericValue lle_X_scanf(const FunctionType *FT,
> + const std::vector<GenericValue> &args) {
> assert(args.size() < 10 && "Only handle up to 10 args to scanf
> right now!");
>
> char *Args[10];
> @@ -503,324 +504,33 @@
> return GV;
> }
>
> -
> -// int clock(void) - Profiling implementation
> -GenericValue lle_i_clock(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - extern unsigned int clock(void);
> - GenericValue GV;
> - GV.IntVal = APInt(32, clock());
> - return GV;
> -}
> -
> -
> -//
> =
> =
> =
> ----------------------------------------------------------------------=
> ==//
> -// String Functions...
> -//
> =
> =
> =
> ----------------------------------------------------------------------=
> ==//
> -
> -// int strcmp(const char *S1, const char *S2);
> -GenericValue lle_X_strcmp(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 2);
> - GenericValue Ret;
> - Ret.IntVal = APInt(32, strcmp((char*)GVTOP(Args[0]),
> (char*)GVTOP(Args[1])));
> - return Ret;
> -}
> -
> -// char *strcat(char *Dest, const char *src);
> -GenericValue lle_X_strcat(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 2);
> - assert(isa<PointerType>(FT->getReturnType()) &&"strcat must
> return pointer");
> - return PTOGV(strcat((char*)GVTOP(Args[0]), (char*)GVTOP(Args[1])));
> -}
> -
> -// char *strcpy(char *Dest, const char *src);
> -GenericValue lle_X_strcpy(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 2);
> - assert(isa<PointerType>(FT->getReturnType()) &&"strcpy must
> return pointer");
> - return PTOGV(strcpy((char*)GVTOP(Args[0]), (char*)GVTOP(Args[1])));
> -}
> -
> -static GenericValue size_t_to_GV (size_t n) {
> - GenericValue Ret;
> - if (sizeof (size_t) == sizeof (uint64_t)) {
> - Ret.IntVal = APInt(64, n);
> - } else {
> - assert (sizeof (size_t) == sizeof (unsigned int));
> - Ret.IntVal = APInt(32, n);
> - }
> - return Ret;
> -}
> -
> -static size_t GV_to_size_t (GenericValue GV) {
> - size_t count;
> - if (sizeof (size_t) == sizeof (uint64_t)) {
> - count = (size_t)GV.IntVal.getZExtValue();
> - } else {
> - assert (sizeof (size_t) == sizeof (unsigned int));
> - count = (size_t)GV.IntVal.getZExtValue();
> - }
> - return count;
> -}
> -
> -// size_t strlen(const char *src);
> -GenericValue lle_X_strlen(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - size_t strlenResult = strlen ((char *) GVTOP (Args[0]));
> - return size_t_to_GV (strlenResult);
> -}
> -
> -// char *strdup(const char *src);
> -GenericValue lle_X_strdup(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - assert(isa<PointerType>(FT->getReturnType()) && "strdup must
> return pointer");
> - return PTOGV(strdup((char*)GVTOP(Args[0])));
> -}
> -
> -// char *__strdup(const char *src);
> -GenericValue lle_X___strdup(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - assert(isa<PointerType>(FT->getReturnType()) &&"_strdup must
> return pointer");
> - return PTOGV(strdup((char*)GVTOP(Args[0])));
> -}
> -
> -// void *memset(void *S, int C, size_t N)
> -GenericValue lle_X_memset(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 3);
> - size_t count = GV_to_size_t (Args[2]);
> - assert(isa<PointerType>(FT->getReturnType()) && "memset must
> return pointer");
> - return PTOGV(memset(GVTOP(Args[0]),
> uint32_t(Args[1].IntVal.getZExtValue()),
> - count));
> -}
> -
> -// void *memcpy(void *Dest, void *src, size_t Size);
> -GenericValue lle_X_memcpy(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 3);
> - assert(isa<PointerType>(FT->getReturnType()) && "memcpy must
> return pointer");
> - size_t count = GV_to_size_t (Args[2]);
> - return PTOGV(memcpy((char*)GVTOP(Args[0]), (char*)GVTOP(Args[1]),
> count));
> -}
> -
> -// void *memcpy(void *Dest, void *src, size_t Size);
> -GenericValue lle_X_memmove(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 3);
> - assert(isa<PointerType>(FT->getReturnType()) && "memmove must
> return pointer");
> - size_t count = GV_to_size_t (Args[2]);
> - return PTOGV(memmove((char*)GVTOP(Args[0]),
> (char*)GVTOP(Args[1]), count));
> -}
> -
> -//
> =
> =
> =
> ----------------------------------------------------------------------=
> ==//
> -// IO Functions...
> -//
> =
> =
> =
> ----------------------------------------------------------------------=
> ==//
> -
> -// getFILE - Turn a pointer in the host address space into a legit
> pointer in
> -// the interpreter address space. This is an identity
> transformation.
> -#define getFILE(ptr) ((FILE*)ptr)
> -
> -// FILE *fopen(const char *filename, const char *mode);
> -GenericValue lle_X_fopen(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 2);
> - assert(isa<PointerType>(FT->getReturnType()) && "fopen must
> return pointer");
> - return PTOGV(fopen((const char *)GVTOP(Args[0]),
> - (const char *)GVTOP(Args[1])));
> -}
> -
> -// int fclose(FILE *F);
> -GenericValue lle_X_fclose(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.IntVal = APInt(32, fclose(getFILE(GVTOP(Args[0]))));
> - return GV;
> -}
> -
> -// int feof(FILE *stream);
> -GenericValue lle_X_feof(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> -
> - GV.IntVal = APInt(32, feof(getFILE(GVTOP(Args[0]))));
> - return GV;
> -}
> -
> -// size_t fread(void *ptr, size_t size, size_t nitems, FILE *stream);
> -GenericValue lle_X_fread(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 4);
> - size_t result;
> -
> - result = fread((void*)GVTOP(Args[0]), GV_to_size_t (Args[1]),
> - GV_to_size_t (Args[2]), getFILE(GVTOP(Args[3])));
> - return size_t_to_GV (result);
> -}
> -
> -// size_t fwrite(const void *ptr, size_t size, size_t nitems, FILE
> *stream);
> -GenericValue lle_X_fwrite(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 4);
> - size_t result;
> -
> - result = fwrite((void*)GVTOP(Args[0]), GV_to_size_t (Args[1]),
> - GV_to_size_t (Args[2]), getFILE(GVTOP(Args[3])));
> - return size_t_to_GV (result);
> -}
> -
> -// char *fgets(char *s, int n, FILE *stream);
> -GenericValue lle_X_fgets(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 3);
> - return PTOGV(fgets((char*)GVTOP(Args[0]),
> Args[1].IntVal.getZExtValue(),
> - getFILE(GVTOP(Args[2]))));
> -}
> -
> -// FILE *freopen(const char *path, const char *mode, FILE *stream);
> -GenericValue lle_X_freopen(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 3);
> - assert(isa<PointerType>(FT->getReturnType()) &&"freopen must
> return pointer");
> - return PTOGV(freopen((char*)GVTOP(Args[0]), (char*)GVTOP(Args[1]),
> - getFILE(GVTOP(Args[2]))));
> -}
> -
> -// int fflush(FILE *stream);
> -GenericValue lle_X_fflush(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.IntVal = APInt(32, fflush(getFILE(GVTOP(Args[0]))));
> - return GV;
> -}
> -
> -// int getc(FILE *stream);
> -GenericValue lle_X_getc(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.IntVal = APInt(32, getc(getFILE(GVTOP(Args[0]))));
> - return GV;
> -}
> -
> -// int _IO_getc(FILE *stream);
> -GenericValue lle_X__IO_getc(FunctionType *F, const
> vector<GenericValue> &Args) {
> - return lle_X_getc(F, Args);
> -}
> -
> -// int fputc(int C, FILE *stream);
> -GenericValue lle_X_fputc(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 2);
> - GenericValue GV;
> - GV.IntVal = APInt(32, fputc(Args[0].IntVal.getZExtValue(),
> - getFILE(GVTOP(Args[1]))));
> - return GV;
> -}
> -
> -// int ungetc(int C, FILE *stream);
> -GenericValue lle_X_ungetc(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 2);
> - GenericValue GV;
> - GV.IntVal = APInt(32, ungetc(Args[0].IntVal.getZExtValue(),
> - getFILE(GVTOP(Args[1]))));
> - return GV;
> -}
> -
> -// int ferror (FILE *stream);
> -GenericValue lle_X_ferror(FunctionType *FT, const
> vector<GenericValue> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> - GV.IntVal = APInt(32, ferror (getFILE(GVTOP(Args[0]))));
> - return GV;
> -}
> -
> -// int fprintf(FILE *,sbyte *, ...) - a very rough implementation
> to make output
> -// useful.
> -GenericValue lle_X_fprintf(FunctionType *FT, const
> vector<GenericValue> &Args) {
> +// int fprintf(FILE *, const char *, ...) - a very rough
> implementation to make
> +// output useful.
> +GenericValue lle_X_fprintf(const FunctionType *FT,
> + const std::vector<GenericValue> &Args) {
> assert(Args.size() >= 2);
> char Buffer[10000];
> - vector<GenericValue> NewArgs;
> + std::vector<GenericValue> NewArgs;
> NewArgs.push_back(PTOGV(Buffer));
> NewArgs.insert(NewArgs.end(), Args.begin()+1, Args.end());
> GenericValue GV = lle_X_sprintf(FT, NewArgs);
>
> - fputs(Buffer, getFILE(GVTOP(Args[0])));
> - return GV;
> -}
> -
> -// int __cxa_guard_acquire (__guard *g);
> -GenericValue lle_X___cxa_guard_acquire(FunctionType *FT,
> - const vector<GenericValue>
> &Args) {
> - assert(Args.size() == 1);
> - GenericValue GV;
> -#ifdef __linux__
> - GV.IntVal = APInt(32, __cxxabiv1::__cxa_guard_acquire (
> - (__cxxabiv1::__guard*)GVTOP(Args[0])));
> -#else
> - assert(0 && "Can't call __cxa_guard_acquire on this platform");
> -#endif
> + fputs(Buffer, (FILE *) GVTOP(Args[0]));
> return GV;
> }
>
> -// void __cxa_guard_release (__guard *g);
> -GenericValue lle_X___cxa_guard_release(FunctionType *FT,
> - const vector<GenericValue>
> &Args) {
> - assert(Args.size() == 1);
> -#ifdef __linux__
> - __cxxabiv1::__cxa_guard_release
> ((__cxxabiv1::__guard*)GVTOP(Args[0]));
> -#else
> - assert(0 && "Can't call __cxa_guard_release on this platform");
> -#endif
> - return GenericValue();
> -}
> -
> } // End extern "C"
>
>
> void Interpreter::initializeExternalFunctions() {
> - FuncNames["lle_X_putchar"] = lle_X_putchar;
> - FuncNames["lle_X__IO_putc"] = lle_X__IO_putc;
> + FuncNames["lle_X_atexit"] = lle_X_atexit;
> FuncNames["lle_X_exit"] = lle_X_exit;
> FuncNames["lle_X_abort"] = lle_X_abort;
> - FuncNames["lle_X_malloc"] = lle_X_malloc;
> - FuncNames["lle_X_calloc"] = lle_X_calloc;
> - FuncNames["lle_X_realloc"] = lle_X_realloc;
> - FuncNames["lle_X_free"] = lle_X_free;
> - FuncNames["lle_X_atoi"] = lle_X_atoi;
> - FuncNames["lle_X_pow"] = lle_X_pow;
> - FuncNames["lle_X_sin"] = lle_X_sin;
> - FuncNames["lle_X_cos"] = lle_X_cos;
> - FuncNames["lle_X_exp"] = lle_X_exp;
> - FuncNames["lle_X_log"] = lle_X_log;
> - FuncNames["lle_X_floor"] = lle_X_floor;
> - FuncNames["lle_X_srand"] = lle_X_srand;
> - FuncNames["lle_X_rand"] = lle_X_rand;
> -#ifdef HAVE_RAND48
> - FuncNames["lle_X_drand48"] = lle_X_drand48;
> - FuncNames["lle_X_srand48"] = lle_X_srand48;
> - FuncNames["lle_X_lrand48"] = lle_X_lrand48;
> -#endif
> - FuncNames["lle_X_sqrt"] = lle_X_sqrt;
> - FuncNames["lle_X_puts"] = lle_X_puts;
> +
> FuncNames["lle_X_printf"] = lle_X_printf;
> FuncNames["lle_X_sprintf"] = lle_X_sprintf;
> FuncNames["lle_X_sscanf"] = lle_X_sscanf;
> FuncNames["lle_X_scanf"] = lle_X_scanf;
> - FuncNames["lle_i_clock"] = lle_i_clock;
> -
> - FuncNames["lle_X_strcmp"] = lle_X_strcmp;
> - FuncNames["lle_X_strcat"] = lle_X_strcat;
> - FuncNames["lle_X_strcpy"] = lle_X_strcpy;
> - FuncNames["lle_X_strlen"] = lle_X_strlen;
> - FuncNames["lle_X___strdup"] = lle_X___strdup;
> - FuncNames["lle_X_memset"] = lle_X_memset;
> - FuncNames["lle_X_memcpy"] = lle_X_memcpy;
> - FuncNames["lle_X_memmove"] = lle_X_memmove;
> -
> - FuncNames["lle_X_fopen"] = lle_X_fopen;
> - FuncNames["lle_X_fclose"] = lle_X_fclose;
> - FuncNames["lle_X_feof"] = lle_X_feof;
> - FuncNames["lle_X_fread"] = lle_X_fread;
> - FuncNames["lle_X_fwrite"] = lle_X_fwrite;
> - FuncNames["lle_X_fgets"] = lle_X_fgets;
> - FuncNames["lle_X_fflush"] = lle_X_fflush;
> - FuncNames["lle_X_fgetc"] = lle_X_getc;
> - FuncNames["lle_X_getc"] = lle_X_getc;
> - FuncNames["lle_X__IO_getc"] = lle_X__IO_getc;
> - FuncNames["lle_X_fputc"] = lle_X_fputc;
> - FuncNames["lle_X_ungetc"] = lle_X_ungetc;
> FuncNames["lle_X_fprintf"] = lle_X_fprintf;
> - FuncNames["lle_X_freopen"] = lle_X_freopen;
> -
> - FuncNames["lle_X___cxa_guard_acquire"] = lle_X___cxa_guard_acquire;
> - FuncNames["lle_X____cxa_guard_release"] =
> lle_X___cxa_guard_release;
> }
>
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
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