| //===-- ExternalFunctions.cpp - Implement External Functions --------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by the LLVM research group and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains both code to deal with invoking "external" functions, but |
| // also contains code that implements "exported" external functions. |
| // |
| // External functions in the interpreter are implemented by |
| // using the system's dynamic loader to look up the address of the function |
| // we want to invoke. If a function is found, then one of the |
| // many lle_* wrapper functions in this file will translate its arguments from |
| // GenericValues to the types the function is actually expecting, before the |
| // function is called. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "Interpreter.h" |
| #include "llvm/DerivedTypes.h" |
| #include "llvm/Module.h" |
| #include "llvm/System/DynamicLibrary.h" |
| #include "llvm/Target/TargetData.h" |
| #include <cmath> |
| #include <csignal> |
| #include <map> |
| using std::vector; |
| |
| using namespace llvm; |
| |
| typedef GenericValue (*ExFunc)(FunctionType *, const vector<GenericValue> &); |
| static std::map<const Function *, ExFunc> Functions; |
| static std::map<std::string, ExFunc> FuncNames; |
| |
| static Interpreter *TheInterpreter; |
| |
| static char getTypeID(const Type *Ty) { |
| switch (Ty->getTypeID()) { |
| case Type::VoidTyID: return 'V'; |
| case Type::BoolTyID: return 'o'; |
| case Type::UByteTyID: return 'B'; |
| case Type::SByteTyID: return 'b'; |
| case Type::UShortTyID: return 'S'; |
| case Type::ShortTyID: return 's'; |
| case Type::UIntTyID: return 'I'; |
| case Type::IntTyID: return 'i'; |
| case Type::ULongTyID: return 'L'; |
| case Type::LongTyID: return 'l'; |
| case Type::FloatTyID: return 'F'; |
| case Type::DoubleTyID: return 'D'; |
| case Type::PointerTyID: return 'P'; |
| case Type::FunctionTyID: return 'M'; |
| case Type::StructTyID: return 'T'; |
| case Type::ArrayTyID: return 'A'; |
| case Type::OpaqueTyID: return 'O'; |
| default: return 'U'; |
| } |
| } |
| |
| static ExFunc lookupFunction(const Function *F) { |
| // Function not found, look it up... start by figuring out what the |
| // composite function name should be. |
| std::string ExtName = "lle_"; |
| const FunctionType *FT = F->getFunctionType(); |
| for (unsigned i = 0, e = FT->getNumContainedTypes(); i != e; ++i) |
| ExtName += getTypeID(FT->getContainedType(i)); |
| ExtName += "_" + F->getName(); |
| |
| ExFunc FnPtr = FuncNames[ExtName]; |
| if (FnPtr == 0) |
| FnPtr = (ExFunc)sys::DynamicLibrary::SearchForAddressOfSymbol(ExtName); |
| if (FnPtr == 0) |
| FnPtr = FuncNames["lle_X_"+F->getName()]; |
| if (FnPtr == 0) // Try calling a generic function... if it exists... |
| FnPtr = (ExFunc)sys::DynamicLibrary::SearchForAddressOfSymbol( |
| ("lle_X_"+F->getName()).c_str()); |
| if (FnPtr != 0) |
| Functions.insert(std::make_pair(F, FnPtr)); // Cache for later |
| return FnPtr; |
| } |
| |
| 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) { |
| std::cout << "Tried to execute an unknown external function: " |
| << F->getType()->getDescription() << " " << F->getName() << "\n"; |
| if (F->getName() == "__main") |
| return GenericValue(); |
| abort(); |
| } |
| |
| // TODO: FIXME when types are not const! |
| GenericValue Result = Fn(const_cast<FunctionType*>(F->getFunctionType()), |
| ArgVals); |
| return Result; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Functions "exported" to the running application... |
| // |
| extern "C" { // Don't add C++ manglings to llvm mangling :) |
| |
| // void putchar(sbyte) |
| GenericValue lle_Vb_putchar(FunctionType *M, const vector<GenericValue> &Args) { |
| std::cout << Args[0].SByteVal; |
| return GenericValue(); |
| } |
| |
| // int putchar(int) |
| GenericValue lle_ii_putchar(FunctionType *M, const vector<GenericValue> &Args) { |
| std::cout << ((char)Args[0].IntVal) << std::flush; |
| return Args[0]; |
| } |
| |
| // void putchar(ubyte) |
| GenericValue lle_VB_putchar(FunctionType *M, const vector<GenericValue> &Args) { |
| std::cout << Args[0].SByteVal << std::flush; |
| return Args[0]; |
| } |
| |
| // void atexit(Function*) |
| GenericValue lle_X_atexit(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| TheInterpreter->addAtExitHandler((Function*)GVTOP(Args[0])); |
| GenericValue GV; |
| GV.IntVal = 0; |
| return GV; |
| } |
| |
| // void exit(int) |
| GenericValue lle_X_exit(FunctionType *M, const vector<GenericValue> &Args) { |
| TheInterpreter->exitCalled(Args[0]); |
| return GenericValue(); |
| } |
| |
| // void abort(void) |
| GenericValue lle_X_abort(FunctionType *M, const vector<GenericValue> &Args) { |
| raise (SIGABRT); |
| return GenericValue(); |
| } |
| |
| // void *malloc(uint) |
| GenericValue lle_X_malloc(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1 && "Malloc expects one argument!"); |
| return PTOGV(malloc(Args[0].UIntVal)); |
| } |
| |
| // void *calloc(uint, uint) |
| GenericValue lle_X_calloc(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 2 && "calloc expects two arguments!"); |
| return PTOGV(calloc(Args[0].UIntVal, Args[1].UIntVal)); |
| } |
| |
| // void free(void *) |
| GenericValue lle_X_free(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| free(GVTOP(Args[0])); |
| return GenericValue(); |
| } |
| |
| // int atoi(char *) |
| GenericValue lle_X_atoi(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| GenericValue GV; |
| GV.IntVal = atoi((char*)GVTOP(Args[0])); |
| return GV; |
| } |
| |
| // double pow(double, double) |
| GenericValue lle_X_pow(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 2); |
| GenericValue GV; |
| GV.DoubleVal = pow(Args[0].DoubleVal, Args[1].DoubleVal); |
| return GV; |
| } |
| |
| // double exp(double) |
| GenericValue lle_X_exp(FunctionType *M, 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 *M, 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 *M, 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 *M, 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 *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 0); |
| GenericValue GV; |
| GV.DoubleVal = drand48(); |
| return GV; |
| } |
| |
| // long lrand48() |
| GenericValue lle_X_lrand48(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 0); |
| GenericValue GV; |
| GV.IntVal = lrand48(); |
| return GV; |
| } |
| |
| // void srand48(long) |
| GenericValue lle_X_srand48(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| srand48(Args[0].IntVal); |
| return GenericValue(); |
| } |
| |
| #endif |
| |
| // int rand() |
| GenericValue lle_X_rand(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 0); |
| GenericValue GV; |
| GV.IntVal = rand(); |
| return GV; |
| } |
| |
| // void srand(uint) |
| GenericValue lle_X_srand(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| srand(Args[0].UIntVal); |
| return GenericValue(); |
| } |
| |
| // int puts(const char*) |
| GenericValue lle_X_puts(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| GenericValue GV; |
| GV.IntVal = puts((char*)GVTOP(Args[0])); |
| return GV; |
| } |
| |
| // int sprintf(sbyte *, sbyte *, ...) - a very rough implementation to make |
| // output useful. |
| GenericValue lle_X_sprintf(FunctionType *M, const vector<GenericValue> &Args) { |
| char *OutputBuffer = (char *)GVTOP(Args[0]); |
| const char *FmtStr = (const char *)GVTOP(Args[1]); |
| unsigned ArgNo = 2; |
| |
| // printf should return # chars printed. This is completely incorrect, but |
| // close enough for now. |
| GenericValue GV; GV.IntVal = strlen(FmtStr); |
| while (1) { |
| switch (*FmtStr) { |
| case 0: return GV; // Null terminator... |
| default: // Normal nonspecial character |
| sprintf(OutputBuffer++, "%c", *FmtStr++); |
| break; |
| case '\\': { // Handle escape codes |
| sprintf(OutputBuffer, "%c%c", *FmtStr, *(FmtStr+1)); |
| FmtStr += 2; OutputBuffer += 2; |
| break; |
| } |
| case '%': { // Handle format specifiers |
| char FmtBuf[100] = "", Buffer[1000] = ""; |
| char *FB = FmtBuf; |
| *FB++ = *FmtStr++; |
| char Last = *FB++ = *FmtStr++; |
| unsigned HowLong = 0; |
| while (Last != 'c' && Last != 'd' && Last != 'i' && Last != 'u' && |
| Last != 'o' && Last != 'x' && Last != 'X' && Last != 'e' && |
| Last != 'E' && Last != 'g' && Last != 'G' && Last != 'f' && |
| Last != 'p' && Last != 's' && Last != '%') { |
| if (Last == 'l' || Last == 'L') HowLong++; // Keep track of l's |
| Last = *FB++ = *FmtStr++; |
| } |
| *FB = 0; |
| |
| switch (Last) { |
| case '%': |
| sprintf(Buffer, FmtBuf); break; |
| case 'c': |
| sprintf(Buffer, FmtBuf, Args[ArgNo++].IntVal); break; |
| case 'd': case 'i': |
| case 'u': case 'o': |
| case 'x': case 'X': |
| if (HowLong >= 1) { |
| if (HowLong == 1 && |
| TheInterpreter->getModule().getPointerSize()==Module::Pointer64 && |
| sizeof(long) < sizeof(int64_t)) { |
| // Make sure we use %lld with a 64 bit argument because we might be |
| // compiling LLI on a 32 bit compiler. |
| unsigned Size = strlen(FmtBuf); |
| FmtBuf[Size] = FmtBuf[Size-1]; |
| FmtBuf[Size+1] = 0; |
| FmtBuf[Size-1] = 'l'; |
| } |
| sprintf(Buffer, FmtBuf, Args[ArgNo++].ULongVal); |
| } else |
| sprintf(Buffer, FmtBuf, Args[ArgNo++].IntVal); break; |
| case 'e': case 'E': case 'g': case 'G': case 'f': |
| sprintf(Buffer, FmtBuf, Args[ArgNo++].DoubleVal); break; |
| case 'p': |
| sprintf(Buffer, FmtBuf, (void*)GVTOP(Args[ArgNo++])); break; |
| case 's': |
| sprintf(Buffer, FmtBuf, (char*)GVTOP(Args[ArgNo++])); break; |
| default: std::cout << "<unknown printf code '" << *FmtStr << "'!>"; |
| ArgNo++; break; |
| } |
| strcpy(OutputBuffer, Buffer); |
| OutputBuffer += strlen(Buffer); |
| } |
| break; |
| } |
| } |
| } |
| |
| // int printf(sbyte *, ...) - a very rough implementation to make output useful. |
| GenericValue lle_X_printf(FunctionType *M, const vector<GenericValue> &Args) { |
| char Buffer[10000]; |
| vector<GenericValue> NewArgs; |
| NewArgs.push_back(PTOGV(Buffer)); |
| NewArgs.insert(NewArgs.end(), Args.begin(), Args.end()); |
| GenericValue GV = lle_X_sprintf(M, NewArgs); |
| std::cout << Buffer; |
| return GV; |
| } |
| |
| static void ByteswapSCANFResults(const char *Fmt, void *Arg0, void *Arg1, |
| void *Arg2, void *Arg3, void *Arg4, void *Arg5, |
| void *Arg6, void *Arg7, void *Arg8) { |
| void *Args[] = { Arg0, Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, 0 }; |
| |
| // Loop over the format string, munging read values as appropriate (performs |
| // byteswaps as necessary). |
| unsigned ArgNo = 0; |
| while (*Fmt) { |
| if (*Fmt++ == '%') { |
| // Read any flag characters that may be present... |
| bool Suppress = false; |
| bool Half = false; |
| bool Long = false; |
| bool LongLong = false; // long long or long double |
| |
| while (1) { |
| switch (*Fmt++) { |
| case '*': Suppress = true; break; |
| case 'a': /*Allocate = true;*/ break; // We don't need to track this |
| case 'h': Half = true; break; |
| case 'l': Long = true; break; |
| case 'q': |
| case 'L': LongLong = true; break; |
| default: |
| if (Fmt[-1] > '9' || Fmt[-1] < '0') // Ignore field width specs |
| goto Out; |
| } |
| } |
| Out: |
| |
| // Read the conversion character |
| if (!Suppress && Fmt[-1] != '%') { // Nothing to do? |
| unsigned Size = 0; |
| const Type *Ty = 0; |
| |
| switch (Fmt[-1]) { |
| case 'i': case 'o': case 'u': case 'x': case 'X': case 'n': case 'p': |
| case 'd': |
| if (Long || LongLong) { |
| Size = 8; Ty = Type::ULongTy; |
| } else if (Half) { |
| Size = 4; Ty = Type::UShortTy; |
| } else { |
| Size = 4; Ty = Type::UIntTy; |
| } |
| break; |
| |
| case 'e': case 'g': case 'E': |
| case 'f': |
| if (Long || LongLong) { |
| Size = 8; Ty = Type::DoubleTy; |
| } else { |
| Size = 4; Ty = Type::FloatTy; |
| } |
| break; |
| |
| case 's': case 'c': case '[': // No byteswap needed |
| Size = 1; |
| Ty = Type::SByteTy; |
| break; |
| |
| default: break; |
| } |
| |
| if (Size) { |
| GenericValue GV; |
| void *Arg = Args[ArgNo++]; |
| memcpy(&GV, Arg, Size); |
| TheInterpreter->StoreValueToMemory(GV, (GenericValue*)Arg, Ty); |
| } |
| } |
| } |
| } |
| } |
| |
| // int sscanf(const char *format, ...); |
| GenericValue lle_X_sscanf(FunctionType *M, const vector<GenericValue> &args) { |
| assert(args.size() < 10 && "Only handle up to 10 args to sscanf right now!"); |
| |
| char *Args[10]; |
| for (unsigned i = 0; i < args.size(); ++i) |
| Args[i] = (char*)GVTOP(args[i]); |
| |
| GenericValue GV; |
| GV.IntVal = sscanf(Args[0], Args[1], Args[2], Args[3], Args[4], |
| Args[5], Args[6], Args[7], Args[8], Args[9]); |
| ByteswapSCANFResults(Args[1], Args[2], Args[3], Args[4], |
| Args[5], Args[6], Args[7], Args[8], Args[9], 0); |
| return GV; |
| } |
| |
| // int scanf(const char *format, ...); |
| GenericValue lle_X_scanf(FunctionType *M, const vector<GenericValue> &args) { |
| assert(args.size() < 10 && "Only handle up to 10 args to scanf right now!"); |
| |
| char *Args[10]; |
| for (unsigned i = 0; i < args.size(); ++i) |
| Args[i] = (char*)GVTOP(args[i]); |
| |
| GenericValue GV; |
| GV.IntVal = scanf(Args[0], Args[1], Args[2], Args[3], Args[4], |
| Args[5], Args[6], Args[7], Args[8], Args[9]); |
| ByteswapSCANFResults(Args[0], Args[1], Args[2], Args[3], Args[4], |
| Args[5], Args[6], Args[7], Args[8], Args[9]); |
| return GV; |
| } |
| |
| |
| // int clock(void) - Profiling implementation |
| GenericValue lle_i_clock(FunctionType *M, const vector<GenericValue> &Args) { |
| extern unsigned int clock(void); |
| GenericValue GV; GV.IntVal = clock(); |
| return GV; |
| } |
| |
| |
| //===----------------------------------------------------------------------===// |
| // String Functions... |
| //===----------------------------------------------------------------------===// |
| |
| // int strcmp(const char *S1, const char *S2); |
| GenericValue lle_X_strcmp(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 2); |
| GenericValue Ret; |
| Ret.IntVal = strcmp((char*)GVTOP(Args[0]), (char*)GVTOP(Args[1])); |
| return Ret; |
| } |
| |
| // char *strcat(char *Dest, const char *src); |
| GenericValue lle_X_strcat(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 2); |
| return PTOGV(strcat((char*)GVTOP(Args[0]), (char*)GVTOP(Args[1]))); |
| } |
| |
| // char *strcpy(char *Dest, const char *src); |
| GenericValue lle_X_strcpy(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 2); |
| 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.ULongVal = n; |
| } else { |
| assert (sizeof (size_t) == sizeof (unsigned int)); |
| Ret.UIntVal = 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.ULongVal; |
| } else { |
| assert (sizeof (size_t) == sizeof (unsigned int)); |
| count = (size_t)GV.UIntVal; |
| } |
| return count; |
| } |
| |
| // size_t strlen(const char *src); |
| GenericValue lle_X_strlen(FunctionType *M, 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 *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| return PTOGV(strdup((char*)GVTOP(Args[0]))); |
| } |
| |
| // char *__strdup(const char *src); |
| GenericValue lle_X___strdup(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| return PTOGV(strdup((char*)GVTOP(Args[0]))); |
| } |
| |
| // void *memset(void *S, int C, size_t N) |
| GenericValue lle_X_memset(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 3); |
| size_t count = GV_to_size_t (Args[2]); |
| return PTOGV(memset(GVTOP(Args[0]), Args[1].IntVal, count)); |
| } |
| |
| // void *memcpy(void *Dest, void *src, size_t Size); |
| GenericValue lle_X_memcpy(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 3); |
| size_t count = GV_to_size_t (Args[2]); |
| return PTOGV(memcpy((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 *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 2); |
| return PTOGV(fopen((const char *)GVTOP(Args[0]), |
| (const char *)GVTOP(Args[1]))); |
| } |
| |
| // int fclose(FILE *F); |
| GenericValue lle_X_fclose(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| GenericValue GV; |
| GV.IntVal = fclose(getFILE(GVTOP(Args[0]))); |
| return GV; |
| } |
| |
| // int feof(FILE *stream); |
| GenericValue lle_X_feof(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| GenericValue GV; |
| |
| GV.IntVal = 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 *M, 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 *M, 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 *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 3); |
| return GVTOP(fgets((char*)GVTOP(Args[0]), Args[1].IntVal, |
| getFILE(GVTOP(Args[2])))); |
| } |
| |
| // FILE *freopen(const char *path, const char *mode, FILE *stream); |
| GenericValue lle_X_freopen(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 3); |
| return PTOGV(freopen((char*)GVTOP(Args[0]), (char*)GVTOP(Args[1]), |
| getFILE(GVTOP(Args[2])))); |
| } |
| |
| // int fflush(FILE *stream); |
| GenericValue lle_X_fflush(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| GenericValue GV; |
| GV.IntVal = fflush(getFILE(GVTOP(Args[0]))); |
| return GV; |
| } |
| |
| // int getc(FILE *stream); |
| GenericValue lle_X_getc(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| GenericValue GV; |
| GV.IntVal = 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 *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 2); |
| GenericValue GV; |
| GV.IntVal = fputc(Args[0].IntVal, getFILE(GVTOP(Args[1]))); |
| return GV; |
| } |
| |
| // int ungetc(int C, FILE *stream); |
| GenericValue lle_X_ungetc(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 2); |
| GenericValue GV; |
| GV.IntVal = ungetc(Args[0].IntVal, getFILE(GVTOP(Args[1]))); |
| return GV; |
| } |
| |
| // int ferror (FILE *stream); |
| GenericValue lle_X_ferror(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() == 1); |
| GenericValue GV; |
| GV.IntVal = ferror (getFILE(GVTOP(Args[0]))); |
| return GV; |
| } |
| |
| // int fprintf(FILE *,sbyte *, ...) - a very rough implementation to make output |
| // useful. |
| GenericValue lle_X_fprintf(FunctionType *M, const vector<GenericValue> &Args) { |
| assert(Args.size() >= 2); |
| char Buffer[10000]; |
| vector<GenericValue> NewArgs; |
| NewArgs.push_back(PTOGV(Buffer)); |
| NewArgs.insert(NewArgs.end(), Args.begin()+1, Args.end()); |
| GenericValue GV = lle_X_sprintf(M, NewArgs); |
| |
| fputs(Buffer, getFILE(GVTOP(Args[0]))); |
| return GV; |
| } |
| |
| } // End extern "C" |
| |
| |
| void Interpreter::initializeExternalFunctions() { |
| FuncNames["lle_Vb_putchar"] = lle_Vb_putchar; |
| FuncNames["lle_ii_putchar"] = lle_ii_putchar; |
| FuncNames["lle_VB_putchar"] = lle_VB_putchar; |
| 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_free"] = lle_X_free; |
| FuncNames["lle_X_atoi"] = lle_X_atoi; |
| FuncNames["lle_X_pow"] = lle_X_pow; |
| 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_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; |
| } |
| |