mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-01 15:11:24 +00:00
394be6c159
This format is simply a regular object file with the bitcode stored in a section named ".llvmbc", plus any number of other (non-allocated) sections. One immediate use case for this is to accommodate compilation processes which expect the object file to contain metadata in non-allocated sections, such as the ".go_export" section used by some Go compilers [1], although I imagine that in the future we could consider compiling parts of the module (such as large non-inlinable functions) directly into the object file to improve LTO efficiency. [1] http://golang.org/doc/install/gccgo#Imports Differential Revision: http://reviews.llvm.org/D4371 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218078 91177308-0d34-0410-b5e6-96231b3b80d8
71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
//===- IRObjectFile.h - LLVM IR object file implementation ------*- C++ -*-===//
|
|
//
|
|
// 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 IRObjectFile template class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_OBJECT_IROBJECTFILE_H
|
|
#define LLVM_OBJECT_IROBJECTFILE_H
|
|
|
|
#include "llvm/Object/SymbolicFile.h"
|
|
|
|
namespace llvm {
|
|
class Mangler;
|
|
class Module;
|
|
class GlobalValue;
|
|
|
|
namespace object {
|
|
class ObjectFile;
|
|
|
|
class IRObjectFile : public SymbolicFile {
|
|
std::unique_ptr<Module> M;
|
|
std::unique_ptr<Mangler> Mang;
|
|
std::vector<std::pair<std::string, uint32_t>> AsmSymbols;
|
|
|
|
public:
|
|
IRObjectFile(MemoryBufferRef Object, std::unique_ptr<Module> M);
|
|
~IRObjectFile();
|
|
void moveSymbolNext(DataRefImpl &Symb) const override;
|
|
std::error_code printSymbolName(raw_ostream &OS,
|
|
DataRefImpl Symb) const override;
|
|
uint32_t getSymbolFlags(DataRefImpl Symb) const override;
|
|
const GlobalValue *getSymbolGV(DataRefImpl Symb) const;
|
|
basic_symbol_iterator symbol_begin_impl() const override;
|
|
basic_symbol_iterator symbol_end_impl() const override;
|
|
|
|
const Module &getModule() const {
|
|
return const_cast<IRObjectFile*>(this)->getModule();
|
|
}
|
|
Module &getModule() {
|
|
return *M;
|
|
}
|
|
|
|
static inline bool classof(const Binary *v) {
|
|
return v->isIR();
|
|
}
|
|
|
|
/// \brief Finds and returns bitcode embedded in the given object file, or an
|
|
/// error code if not found.
|
|
static ErrorOr<MemoryBufferRef> findBitcodeInObject(const ObjectFile &Obj);
|
|
|
|
/// \brief Finds and returns bitcode in the given memory buffer (which may
|
|
/// be either a bitcode file or a native object file with embedded bitcode),
|
|
/// or an error code if not found.
|
|
static ErrorOr<MemoryBufferRef>
|
|
findBitcodeInMemBuffer(MemoryBufferRef Object);
|
|
|
|
static ErrorOr<std::unique_ptr<IRObjectFile>>
|
|
createIRObjectFile(MemoryBufferRef Object, LLVMContext &Context);
|
|
};
|
|
}
|
|
}
|
|
|
|
#endif
|