mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 16:02:52 +01:00
0af6f08453
The linker will call `lto_codegen_add_must_preserve_symbol' on all globals that should be kept around. The linker will pretend that a dylib is being created. <rdar://problem/12528059> llvm-svn: 169770
83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
//===-LTOCodeGenerator.h - LLVM Link Time Optimizer -----------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file declares the LTOCodeGenerator class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LTO_CODE_GENERATOR_H
|
|
#define LTO_CODE_GENERATOR_H
|
|
|
|
#include "llvm-c/lto.h"
|
|
#include "llvm/ADT/SmallPtrSet.h"
|
|
#include "llvm/ADT/StringMap.h"
|
|
#include "llvm/Linker.h"
|
|
#include <string>
|
|
|
|
namespace llvm {
|
|
class LLVMContext;
|
|
class GlobalValue;
|
|
class Mangler;
|
|
class MemoryBuffer;
|
|
class TargetMachine;
|
|
class raw_ostream;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
/// LTOCodeGenerator - C++ class which implements the opaque lto_code_gen_t
|
|
/// type.
|
|
///
|
|
struct LTOCodeGenerator {
|
|
static const char *getVersionString();
|
|
|
|
LTOCodeGenerator();
|
|
~LTOCodeGenerator();
|
|
|
|
bool addModule(struct LTOModule*, std::string &errMsg);
|
|
bool setDebugInfo(lto_debug_model, std::string &errMsg);
|
|
bool setCodePICModel(lto_codegen_model, std::string &errMsg);
|
|
|
|
void setCpu(const char* mCpu) { _mCpu = mCpu; }
|
|
|
|
void addMustPreserveSymbol(const char* sym) {
|
|
_mustPreserveSymbols[sym] = 1;
|
|
}
|
|
|
|
bool writeMergedModules(const char *path, std::string &errMsg);
|
|
bool compile_to_file(const char **name, std::string &errMsg);
|
|
const void *compile(size_t *length, std::string &errMsg);
|
|
void setCodeGenDebugOptions(const char *opts);
|
|
|
|
private:
|
|
bool generateObjectFile(llvm::raw_ostream &out, std::string &errMsg);
|
|
void applyScopeRestrictions();
|
|
void applyRestriction(llvm::GlobalValue &GV,
|
|
std::vector<const char*> &mustPreserveList,
|
|
llvm::SmallPtrSet<llvm::GlobalValue*, 8> &asmUsed,
|
|
llvm::Mangler &mangler);
|
|
bool determineTarget(std::string &errMsg);
|
|
|
|
typedef llvm::StringMap<uint8_t> StringSet;
|
|
|
|
llvm::LLVMContext& _context;
|
|
llvm::Linker _linker;
|
|
llvm::TargetMachine* _target;
|
|
bool _emitDwarfDebugInfo;
|
|
bool _scopeRestrictionsDone;
|
|
lto_codegen_model _codeModel;
|
|
StringSet _mustPreserveSymbols;
|
|
StringSet _asmUndefinedRefs;
|
|
llvm::MemoryBuffer* _nativeObjectFile;
|
|
std::vector<char*> _codegenOptions;
|
|
std::string _mCpu;
|
|
std::string _nativeObjectPath;
|
|
};
|
|
|
|
#endif // LTO_CODE_GENERATOR_H
|