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//===-- TargetMachine.cpp -------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the LLVM-C part of TargetMachine.h
//
//===----------------------------------------------------------------------===//
#include "llvm-c/TargetMachine.h"
#include "llvm-c/Core.h"
#include "llvm-c/Target.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Module.h"
#include "llvm/PassManager.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include <cassert>
#include <cstdlib>
#include <cstring>
using namespace llvm;
inline DataLayout *unwrap(LLVMTargetDataRef P) {
return reinterpret_cast<DataLayout*>(P);
}
inline LLVMTargetDataRef wrap(const DataLayout *P) {
return reinterpret_cast<LLVMTargetDataRef>(const_cast<DataLayout*>(P));
}
inline TargetLibraryInfo *unwrap(LLVMTargetLibraryInfoRef P) {
return reinterpret_cast<TargetLibraryInfo*>(P);
}
inline LLVMTargetLibraryInfoRef wrap(const TargetLibraryInfo *P) {
TargetLibraryInfo *X = const_cast<TargetLibraryInfo*>(P);
return reinterpret_cast<LLVMTargetLibraryInfoRef>(X);
}
inline TargetMachine *unwrap(LLVMTargetMachineRef P) {
return reinterpret_cast<TargetMachine*>(P);
}
inline Target *unwrap(LLVMTargetRef P) {
return reinterpret_cast<Target*>(P);
}
inline LLVMTargetMachineRef wrap(const TargetMachine *P) {
return
reinterpret_cast<LLVMTargetMachineRef>(const_cast<TargetMachine*>(P));
}
inline LLVMTargetRef wrap(const Target * P) {
return reinterpret_cast<LLVMTargetRef>(const_cast<Target*>(P));
}
LLVMTargetRef LLVMGetFirstTarget() {
if(TargetRegistry::begin() == TargetRegistry::end()) {
return NULL;
}
const Target* target = &*TargetRegistry::begin();
return wrap(target);
}
LLVMTargetRef LLVMGetNextTarget(LLVMTargetRef T) {
return wrap(unwrap(T)->getNext());
}
const char * LLVMGetTargetName(LLVMTargetRef T) {
return unwrap(T)->getName();
}
const char * LLVMGetTargetDescription(LLVMTargetRef T) {
return unwrap(T)->getShortDescription();
}
LLVMBool LLVMTargetHasJIT(LLVMTargetRef T) {
return unwrap(T)->hasJIT();
}
LLVMBool LLVMTargetHasTargetMachine(LLVMTargetRef T) {
return unwrap(T)->hasTargetMachine();
}
LLVMBool LLVMTargetHasAsmBackend(LLVMTargetRef T) {
return unwrap(T)->hasMCAsmBackend();
}
LLVMTargetMachineRef LLVMCreateTargetMachine(LLVMTargetRef T, char* Triple,
char* CPU, char* Features, LLVMCodeGenOptLevel Level, LLVMRelocMode Reloc,
LLVMCodeModel CodeModel) {
Reloc::Model RM;
switch (Reloc){
case LLVMRelocStatic:
RM = Reloc::Static;
break;
case LLVMRelocPIC:
RM = Reloc::PIC_;
break;
case LLVMRelocDynamicNoPic:
RM = Reloc::DynamicNoPIC;
break;
default:
RM = Reloc::Default;
break;
}
CodeModel::Model CM = unwrap(CodeModel);
CodeGenOpt::Level OL;
switch (Level) {
case LLVMCodeGenLevelNone:
OL = CodeGenOpt::None;
break;
case LLVMCodeGenLevelLess:
OL = CodeGenOpt::Less;
break;
case LLVMCodeGenLevelAggressive:
OL = CodeGenOpt::Aggressive;
break;
default:
OL = CodeGenOpt::Default;
break;
}
TargetOptions opt;
return wrap(unwrap(T)->createTargetMachine(Triple, CPU, Features, opt, RM,
CM, OL));
}
void LLVMDisposeTargetMachine(LLVMTargetMachineRef T) {
delete unwrap(T);
}
LLVMTargetRef LLVMGetTargetMachineTarget(LLVMTargetMachineRef T) {
const Target* target = &(unwrap(T)->getTarget());
return wrap(target);
}
char* LLVMGetTargetMachineTriple(LLVMTargetMachineRef T) {
std::string StringRep = unwrap(T)->getTargetTriple();
return strdup(StringRep.c_str());
}
char* LLVMGetTargetMachineCPU(LLVMTargetMachineRef T) {
std::string StringRep = unwrap(T)->getTargetCPU();
return strdup(StringRep.c_str());
}
char* LLVMGetTargetMachineFeatureString(LLVMTargetMachineRef T) {
std::string StringRep = unwrap(T)->getTargetFeatureString();
return strdup(StringRep.c_str());
}
LLVMTargetDataRef LLVMGetTargetMachineData(LLVMTargetMachineRef T) {
return wrap(unwrap(T)->getDataLayout());
}
static LLVMBool LLVMTargetMachineEmit(LLVMTargetMachineRef T, LLVMModuleRef M,
formatted_raw_ostream &OS, LLVMCodeGenFileType codegen, char **ErrorMessage) {
TargetMachine* TM = unwrap(T);
Module* Mod = unwrap(M);
PassManager pass;
std::string error;
const DataLayout* td = TM->getDataLayout();
if (!td) {
error = "No DataLayout in TargetMachine";
*ErrorMessage = strdup(error.c_str());
return true;
}
pass.add(new DataLayout(*td));
TargetMachine::CodeGenFileType ft;
switch (codegen) {
case LLVMAssemblyFile:
ft = TargetMachine::CGFT_AssemblyFile;
break;
default:
ft = TargetMachine::CGFT_ObjectFile;
break;
}
if (TM->addPassesToEmitFile(pass, OS, ft)) {
error = "TargetMachine can't emit a file of this type";
*ErrorMessage = strdup(error.c_str());
return true;
}
pass.run(*Mod);
OS.flush();
return false;
}
LLVMBool LLVMTargetMachineEmitToFile(LLVMTargetMachineRef T, LLVMModuleRef M,
char* Filename, LLVMCodeGenFileType codegen, char** ErrorMessage) {
std::string error;
raw_fd_ostream dest(Filename, error, sys::fs::F_Binary);
if (!error.empty()) {
*ErrorMessage = strdup(error.c_str());
return true;
}
formatted_raw_ostream destf(dest);
bool Result = LLVMTargetMachineEmit(T, M, destf, codegen, ErrorMessage);
dest.flush();
return Result;
}
LLVMBool LLVMTargetMachineEmitToMemoryBuffer(LLVMTargetMachineRef T,
LLVMModuleRef M, LLVMCodeGenFileType codegen, char** ErrorMessage,
LLVMMemoryBufferRef *OutMemBuf) {
std::string CodeString;
raw_string_ostream OStream(CodeString);
formatted_raw_ostream Out(OStream);
bool Result = LLVMTargetMachineEmit(T, M, Out, codegen, ErrorMessage);
OStream.flush();
std::string &Data = OStream.str();
*OutMemBuf = LLVMCreateMemoryBufferWithMemoryRangeCopy(Data.c_str(),
Data.length(), "");
return Result;
}
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