mirror of
https://github.com/c64scene-ar/llvm-6502.git
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ae9f3a3b7c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
826 lines
28 KiB
C++
826 lines
28 KiB
C++
//===-- ExternalFunctions.cpp - Implement External Functions --------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains both code to deal with invoking "external" functions, but
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// also contains code that implements "exported" external functions.
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//
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// External functions in the interpreter are implemented by
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// using the system's dynamic loader to look up the address of the function
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// we want to invoke. If a function is found, then one of the
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// many lle_* wrapper functions in this file will translate its arguments from
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// GenericValues to the types the function is actually expecting, before the
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// function is called.
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//
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//===----------------------------------------------------------------------===//
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#include "Interpreter.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/Module.h"
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#include "llvm/Support/Streams.h"
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#include "llvm/System/DynamicLibrary.h"
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#include "llvm/Target/TargetData.h"
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#include "llvm/Support/ManagedStatic.h"
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#include <csignal>
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#include <map>
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#include <cmath>
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#include <cstring>
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#ifdef __linux__
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#include <cxxabi.h>
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#endif
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using std::vector;
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using namespace llvm;
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typedef GenericValue (*ExFunc)(FunctionType *, const vector<GenericValue> &);
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static ManagedStatic<std::map<const Function *, ExFunc> > Functions;
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static std::map<std::string, ExFunc> FuncNames;
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static Interpreter *TheInterpreter;
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static char getTypeID(const Type *Ty) {
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switch (Ty->getTypeID()) {
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case Type::VoidTyID: return 'V';
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case Type::IntegerTyID:
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switch (cast<IntegerType>(Ty)->getBitWidth()) {
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case 1: return 'o';
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case 8: return 'B';
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case 16: return 'S';
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case 32: return 'I';
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case 64: return 'L';
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default: return 'N';
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}
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case Type::FloatTyID: return 'F';
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case Type::DoubleTyID: return 'D';
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case Type::PointerTyID: return 'P';
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case Type::FunctionTyID:return 'M';
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case Type::StructTyID: return 'T';
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case Type::ArrayTyID: return 'A';
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case Type::OpaqueTyID: return 'O';
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default: return 'U';
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}
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}
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// Try to find address of external function given a Function object.
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// Please note, that interpreter doesn't know how to assemble a
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// real call in general case (this is JIT job), that's why it assumes,
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// that all external functions has the same (and pretty "general") signature.
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// The typical example of such functions are "lle_X_" ones.
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static ExFunc lookupFunction(const Function *F) {
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// Function not found, look it up... start by figuring out what the
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// composite function name should be.
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std::string ExtName = "lle_";
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const FunctionType *FT = F->getFunctionType();
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for (unsigned i = 0, e = FT->getNumContainedTypes(); i != e; ++i)
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ExtName += getTypeID(FT->getContainedType(i));
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ExtName += "_" + F->getName();
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ExFunc FnPtr = FuncNames[ExtName];
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if (FnPtr == 0)
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FnPtr = FuncNames["lle_X_"+F->getName()];
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if (FnPtr == 0) // Try calling a generic function... if it exists...
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FnPtr = (ExFunc)(intptr_t)sys::DynamicLibrary::SearchForAddressOfSymbol(
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("lle_X_"+F->getName()).c_str());
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if (FnPtr == 0)
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FnPtr = (ExFunc)(intptr_t)
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sys::DynamicLibrary::SearchForAddressOfSymbol(F->getName());
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if (FnPtr != 0)
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Functions->insert(std::make_pair(F, FnPtr)); // Cache for later
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return FnPtr;
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}
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GenericValue Interpreter::callExternalFunction(Function *F,
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const std::vector<GenericValue> &ArgVals) {
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TheInterpreter = this;
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// Do a lookup to see if the function is in our cache... this should just be a
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// deferred annotation!
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std::map<const Function *, ExFunc>::iterator FI = Functions->find(F);
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ExFunc Fn = (FI == Functions->end()) ? lookupFunction(F) : FI->second;
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if (Fn == 0) {
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cerr << "Tried to execute an unknown external function: "
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<< F->getType()->getDescription() << " " << F->getName() << "\n";
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if (F->getName() == "__main")
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return GenericValue();
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abort();
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}
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// TODO: FIXME when types are not const!
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GenericValue Result = Fn(const_cast<FunctionType*>(F->getFunctionType()),
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ArgVals);
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return Result;
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}
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//===----------------------------------------------------------------------===//
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// Functions "exported" to the running application...
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//
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extern "C" { // Don't add C++ manglings to llvm mangling :)
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// void putchar(ubyte)
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GenericValue lle_X_putchar(FunctionType *FT, const vector<GenericValue> &Args){
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cout << ((char)Args[0].IntVal.getZExtValue()) << std::flush;
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return Args[0];
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}
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// void _IO_putc(int c, FILE* fp)
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GenericValue lle_X__IO_putc(FunctionType *FT, const vector<GenericValue> &Args){
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#ifdef __linux__
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_IO_putc((char)Args[0].IntVal.getZExtValue(), (FILE*) Args[1].PointerVal);
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#else
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assert(0 && "Can't call _IO_putc on this platform");
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#endif
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return Args[0];
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}
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// void atexit(Function*)
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GenericValue lle_X_atexit(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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TheInterpreter->addAtExitHandler((Function*)GVTOP(Args[0]));
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GenericValue GV;
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GV.IntVal = 0;
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return GV;
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}
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// void exit(int)
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GenericValue lle_X_exit(FunctionType *FT, const vector<GenericValue> &Args) {
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TheInterpreter->exitCalled(Args[0]);
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return GenericValue();
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}
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// void abort(void)
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GenericValue lle_X_abort(FunctionType *FT, const vector<GenericValue> &Args) {
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raise (SIGABRT);
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return GenericValue();
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}
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// void *malloc(uint)
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GenericValue lle_X_malloc(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1 && "Malloc expects one argument!");
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assert(isa<PointerType>(FT->getReturnType()) && "malloc must return pointer");
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return PTOGV(malloc(Args[0].IntVal.getZExtValue()));
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}
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// void *calloc(uint, uint)
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GenericValue lle_X_calloc(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 2 && "calloc expects two arguments!");
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assert(isa<PointerType>(FT->getReturnType()) && "calloc must return pointer");
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return PTOGV(calloc(Args[0].IntVal.getZExtValue(),
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Args[1].IntVal.getZExtValue()));
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}
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// void *calloc(uint, uint)
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GenericValue lle_X_realloc(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 2 && "calloc expects two arguments!");
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assert(isa<PointerType>(FT->getReturnType()) &&"realloc must return pointer");
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return PTOGV(realloc(GVTOP(Args[0]), Args[1].IntVal.getZExtValue()));
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}
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// void free(void *)
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GenericValue lle_X_free(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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free(GVTOP(Args[0]));
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return GenericValue();
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}
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// int atoi(char *)
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GenericValue lle_X_atoi(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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GenericValue GV;
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GV.IntVal = APInt(32, atoi((char*)GVTOP(Args[0])));
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return GV;
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}
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// double pow(double, double)
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GenericValue lle_X_pow(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 2);
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GenericValue GV;
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GV.DoubleVal = pow(Args[0].DoubleVal, Args[1].DoubleVal);
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return GV;
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}
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// double sin(double)
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GenericValue lle_X_sin(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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GenericValue GV;
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GV.DoubleVal = sin(Args[0].DoubleVal);
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return GV;
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}
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// double cos(double)
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GenericValue lle_X_cos(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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GenericValue GV;
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GV.DoubleVal = cos(Args[0].DoubleVal);
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return GV;
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}
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// double exp(double)
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GenericValue lle_X_exp(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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GenericValue GV;
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GV.DoubleVal = exp(Args[0].DoubleVal);
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return GV;
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}
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// double sqrt(double)
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GenericValue lle_X_sqrt(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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GenericValue GV;
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GV.DoubleVal = sqrt(Args[0].DoubleVal);
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return GV;
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}
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// double log(double)
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GenericValue lle_X_log(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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GenericValue GV;
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GV.DoubleVal = log(Args[0].DoubleVal);
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return GV;
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}
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// double floor(double)
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GenericValue lle_X_floor(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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GenericValue GV;
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GV.DoubleVal = floor(Args[0].DoubleVal);
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return GV;
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}
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#ifdef HAVE_RAND48
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// double drand48()
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GenericValue lle_X_drand48(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.empty());
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GenericValue GV;
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GV.DoubleVal = drand48();
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return GV;
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}
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// long lrand48()
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GenericValue lle_X_lrand48(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.empty());
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GenericValue GV;
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GV.IntVal = APInt(32, lrand48());
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return GV;
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}
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// void srand48(long)
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GenericValue lle_X_srand48(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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srand48(Args[0].IntVal.getZExtValue());
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return GenericValue();
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}
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#endif
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// int rand()
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GenericValue lle_X_rand(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.empty());
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GenericValue GV;
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GV.IntVal = APInt(32, rand());
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return GV;
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}
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// void srand(uint)
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GenericValue lle_X_srand(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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srand(Args[0].IntVal.getZExtValue());
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return GenericValue();
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}
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// int puts(const char*)
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GenericValue lle_X_puts(FunctionType *FT, const vector<GenericValue> &Args) {
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assert(Args.size() == 1);
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GenericValue GV;
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GV.IntVal = APInt(32, puts((char*)GVTOP(Args[0])));
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return GV;
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}
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// int sprintf(sbyte *, sbyte *, ...) - a very rough implementation to make
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// output useful.
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GenericValue lle_X_sprintf(FunctionType *FT, const vector<GenericValue> &Args) {
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char *OutputBuffer = (char *)GVTOP(Args[0]);
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const char *FmtStr = (const char *)GVTOP(Args[1]);
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unsigned ArgNo = 2;
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// printf should return # chars printed. This is completely incorrect, but
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// close enough for now.
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GenericValue GV;
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GV.IntVal = APInt(32, strlen(FmtStr));
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while (1) {
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switch (*FmtStr) {
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case 0: return GV; // Null terminator...
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default: // Normal nonspecial character
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sprintf(OutputBuffer++, "%c", *FmtStr++);
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break;
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case '\\': { // Handle escape codes
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sprintf(OutputBuffer, "%c%c", *FmtStr, *(FmtStr+1));
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FmtStr += 2; OutputBuffer += 2;
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break;
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}
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case '%': { // Handle format specifiers
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char FmtBuf[100] = "", Buffer[1000] = "";
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char *FB = FmtBuf;
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*FB++ = *FmtStr++;
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char Last = *FB++ = *FmtStr++;
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unsigned HowLong = 0;
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while (Last != 'c' && Last != 'd' && Last != 'i' && Last != 'u' &&
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Last != 'o' && Last != 'x' && Last != 'X' && Last != 'e' &&
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Last != 'E' && Last != 'g' && Last != 'G' && Last != 'f' &&
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Last != 'p' && Last != 's' && Last != '%') {
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if (Last == 'l' || Last == 'L') HowLong++; // Keep track of l's
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Last = *FB++ = *FmtStr++;
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}
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*FB = 0;
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switch (Last) {
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case '%':
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sprintf(Buffer, FmtBuf); break;
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case 'c':
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sprintf(Buffer, FmtBuf, uint32_t(Args[ArgNo++].IntVal.getZExtValue()));
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break;
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case 'd': case 'i':
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case 'u': case 'o':
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case 'x': case 'X':
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if (HowLong >= 1) {
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if (HowLong == 1 &&
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TheInterpreter->getTargetData()->getPointerSizeInBits() == 64 &&
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sizeof(long) < sizeof(int64_t)) {
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// Make sure we use %lld with a 64 bit argument because we might be
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// compiling LLI on a 32 bit compiler.
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unsigned Size = strlen(FmtBuf);
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FmtBuf[Size] = FmtBuf[Size-1];
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FmtBuf[Size+1] = 0;
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FmtBuf[Size-1] = 'l';
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}
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sprintf(Buffer, FmtBuf, Args[ArgNo++].IntVal.getZExtValue());
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} else
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sprintf(Buffer, FmtBuf,uint32_t(Args[ArgNo++].IntVal.getZExtValue()));
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break;
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case 'e': case 'E': case 'g': case 'G': case 'f':
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sprintf(Buffer, FmtBuf, Args[ArgNo++].DoubleVal); break;
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case 'p':
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sprintf(Buffer, FmtBuf, (void*)GVTOP(Args[ArgNo++])); break;
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case 's':
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sprintf(Buffer, FmtBuf, (char*)GVTOP(Args[ArgNo++])); break;
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default: cerr << "<unknown printf code '" << *FmtStr << "'!>";
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ArgNo++; break;
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}
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strcpy(OutputBuffer, Buffer);
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OutputBuffer += strlen(Buffer);
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}
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break;
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}
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}
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return GV;
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}
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// int printf(sbyte *, ...) - a very rough implementation to make output useful.
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GenericValue lle_X_printf(FunctionType *FT, const vector<GenericValue> &Args) {
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char Buffer[10000];
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vector<GenericValue> NewArgs;
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NewArgs.push_back(PTOGV((void*)&Buffer[0]));
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NewArgs.insert(NewArgs.end(), Args.begin(), Args.end());
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GenericValue GV = lle_X_sprintf(FT, NewArgs);
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cout << Buffer;
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return GV;
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}
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static void ByteswapSCANFResults(const char *Fmt, void *Arg0, void *Arg1,
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void *Arg2, void *Arg3, void *Arg4, void *Arg5,
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void *Arg6, void *Arg7, void *Arg8) {
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void *Args[] = { Arg0, Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8, 0 };
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// Loop over the format string, munging read values as appropriate (performs
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// byteswaps as necessary).
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unsigned ArgNo = 0;
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while (*Fmt) {
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if (*Fmt++ == '%') {
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// Read any flag characters that may be present...
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bool Suppress = false;
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bool Half = false;
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bool Long = false;
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bool LongLong = false; // long long or long double
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while (1) {
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switch (*Fmt++) {
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case '*': Suppress = true; break;
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case 'a': /*Allocate = true;*/ break; // We don't need to track this
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case 'h': Half = true; break;
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case 'l': Long = true; break;
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case 'q':
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case 'L': LongLong = true; break;
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default:
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if (Fmt[-1] > '9' || Fmt[-1] < '0') // Ignore field width specs
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goto Out;
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}
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}
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Out:
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// Read the conversion character
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if (!Suppress && Fmt[-1] != '%') { // Nothing to do?
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unsigned Size = 0;
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const Type *Ty = 0;
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switch (Fmt[-1]) {
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case 'i': case 'o': case 'u': case 'x': case 'X': case 'n': case 'p':
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case 'd':
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if (Long || LongLong) {
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Size = 8; Ty = Type::Int64Ty;
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} else if (Half) {
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Size = 4; Ty = Type::Int16Ty;
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} else {
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Size = 4; Ty = Type::Int32Ty;
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}
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break;
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case 'e': case 'g': case 'E':
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case 'f':
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if (Long || LongLong) {
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Size = 8; Ty = Type::DoubleTy;
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} else {
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Size = 4; Ty = Type::FloatTy;
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}
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break;
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case 's': case 'c': case '[': // No byteswap needed
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Size = 1;
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Ty = Type::Int8Ty;
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break;
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default: break;
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}
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if (Size) {
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GenericValue GV;
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void *Arg = Args[ArgNo++];
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memcpy(&GV, Arg, Size);
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TheInterpreter->StoreValueToMemory(GV, (GenericValue*)Arg, Ty);
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}
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}
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}
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}
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}
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|
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// int sscanf(const char *format, ...);
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GenericValue lle_X_sscanf(FunctionType *FT, const vector<GenericValue> &args) {
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assert(args.size() < 10 && "Only handle up to 10 args to sscanf right now!");
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|
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char *Args[10];
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for (unsigned i = 0; i < args.size(); ++i)
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Args[i] = (char*)GVTOP(args[i]);
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|
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GenericValue GV;
|
|
GV.IntVal = APInt(32, 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 *FT, 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 = APInt(32, 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 *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) {
|
|
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(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
|
|
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_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;
|
|
}
|
|
|