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//===-- ObjectImageCommon.h - Format independent executuable object image -===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares a file format independent ObjectImage class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_OBJECTIMAGECOMMON_H
#define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_OBJECTIMAGECOMMON_H
#include "llvm/ExecutionEngine/ObjectBuffer.h"
#include "llvm/ExecutionEngine/ObjectImage.h"
#include "llvm/Object/ObjectFile.h"
#include <memory>
namespace llvm {
namespace object {
class ObjectFile;
}
class ObjectImageCommon : public ObjectImage {
ObjectImageCommon(); // = delete
ObjectImageCommon(const ObjectImageCommon &other); // = delete
void anchor() override;
protected:
std::unique_ptr<object::ObjectFile> ObjFile;
// This form of the constructor allows subclasses to use
// format-specific subclasses of ObjectFile directly
ObjectImageCommon(std::unique_ptr<ObjectBuffer> Input,
std::unique_ptr<object::ObjectFile> Obj)
: ObjectImage(std::move(Input)), ObjFile(std::move(Obj)) {}
public:
ObjectImageCommon(std::unique_ptr<ObjectBuffer> Input)
: ObjectImage(std::move(Input)) {
// FIXME: error checking? createObjectFile returns an ErrorOr<ObjectFile*>
// and should probably be checked for failure.
MemoryBufferRef Buf = Buffer->getMemBuffer();
ObjFile = std::move(object::ObjectFile::createObjectFile(Buf).get());
}
ObjectImageCommon(std::unique_ptr<object::ObjectFile> Input)
: ObjectImage(nullptr), ObjFile(std::move(Input)) {}
virtual ~ObjectImageCommon() { }
object::symbol_iterator begin_symbols() const override
{ return ObjFile->symbol_begin(); }
object::symbol_iterator end_symbols() const override
{ return ObjFile->symbol_end(); }
object::section_iterator begin_sections() const override
{ return ObjFile->section_begin(); }
object::section_iterator end_sections() const override
{ return ObjFile->section_end(); }
/* Triple::ArchType */ unsigned getArch() const override
{ return ObjFile->getArch(); }
StringRef getData() const override { return ObjFile->getData(); }
object::ObjectFile* getObjectFile() const override { return ObjFile.get(); }
// Subclasses can override these methods to update the image with loaded
// addresses for sections and common symbols
void updateSectionAddress(const object::SectionRef &Sec,
uint64_t Addr) override {}
void updateSymbolAddress(const object::SymbolRef &Sym,
uint64_t Addr) override {}
// Subclasses can override these methods to provide JIT debugging support
void registerWithDebugger() override {}
void deregisterWithDebugger() override {}
};
} // end namespace llvm
#endif
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