[llvm-commits] [llvm] r62553 - in /llvm/trunk: autoconf/configure.ac lib/ExecutionEngine/Interpreter/ExternalFunctions.cpp
Nick Lewycky
nicholas at mxc.ca
Wed Jan 21 23:54:19 PST 2009
Evan Cheng wrote:
>>
>>
>> -#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>
I was hoping it would be, but apparently not.
Could you tell me what your include/llvm/Config/config.h says for
HAVE_LIBFFI and FFI_HEADER ? And if you happen to know, do you have
libffi installed, and ffi.h?
Nick
> 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;
>> }
>>
>>
>>
>> _______________________________________________
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>> llvm-commits at cs.uiuc.edu <mailto:llvm-commits at cs.uiuc.edu>
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>
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