You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
96 lines
3.3 KiB
96 lines
3.3 KiB
/*
|
|
* Copyright (C) 2012 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ART_DEX2OAT_LINKER_ELF_WRITER_H_
|
|
#define ART_DEX2OAT_LINKER_ELF_WRITER_H_
|
|
|
|
#include <stdint.h>
|
|
#include <cstddef>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "base/array_ref.h"
|
|
#include "base/macros.h"
|
|
#include "base/mutex.h"
|
|
#include "base/os.h"
|
|
#include "debug/debug_info.h"
|
|
|
|
namespace art {
|
|
|
|
class ElfFile;
|
|
class OutputStream;
|
|
|
|
namespace debug {
|
|
struct MethodDebugInfo;
|
|
} // namespace debug
|
|
|
|
namespace linker {
|
|
|
|
class ElfWriter {
|
|
public:
|
|
// Looks up information about location of oat file in elf file container.
|
|
// Used for ImageWriter to perform memory layout.
|
|
static void GetOatElfInformation(File* file,
|
|
size_t* oat_loaded_size,
|
|
size_t* oat_data_offset);
|
|
|
|
// Returns runtime oat_data runtime address for an opened ElfFile.
|
|
static uintptr_t GetOatDataAddress(ElfFile* elf_file);
|
|
|
|
virtual ~ElfWriter() {}
|
|
|
|
virtual void Start() = 0;
|
|
// Prepares memory layout of the whole ELF file, and creates dynamic symbols
|
|
// which point to specific areas of interest (usually section begin and end).
|
|
// This is needed as multi-image needs to know the memory layout of all ELF
|
|
// files, before starting to write them.
|
|
// This method must be called before calling GetLoadedSize().
|
|
virtual void PrepareDynamicSection(size_t rodata_size,
|
|
size_t text_size,
|
|
size_t data_bimg_rel_ro_size,
|
|
size_t bss_size,
|
|
size_t bss_methods_offset,
|
|
size_t bss_roots_offset,
|
|
size_t dex_section_size) = 0;
|
|
virtual void PrepareDebugInfo(const debug::DebugInfo& debug_info) = 0;
|
|
virtual OutputStream* StartRoData() = 0;
|
|
virtual void EndRoData(OutputStream* rodata) = 0;
|
|
virtual OutputStream* StartText() = 0;
|
|
virtual void EndText(OutputStream* text) = 0;
|
|
virtual OutputStream* StartDataBimgRelRo() = 0;
|
|
virtual void EndDataBimgRelRo(OutputStream* data_bimg_rel_ro) = 0;
|
|
virtual void WriteDynamicSection() = 0;
|
|
virtual void WriteDebugInfo(const debug::DebugInfo& debug_info) = 0;
|
|
virtual bool StripDebugInfo() = 0;
|
|
virtual bool End() = 0;
|
|
|
|
// Get the ELF writer's stream. This stream can be used for writing data directly
|
|
// to a section after the section has been finished. When that's done, the user
|
|
// should Seek() back to the position where the stream was before this operation.
|
|
virtual OutputStream* GetStream() = 0;
|
|
|
|
// Get the size that the loaded ELF file will occupy in memory.
|
|
virtual size_t GetLoadedSize() = 0;
|
|
|
|
protected:
|
|
ElfWriter() = default;
|
|
};
|
|
|
|
} // namespace linker
|
|
} // namespace art
|
|
|
|
#endif // ART_DEX2OAT_LINKER_ELF_WRITER_H_
|