mirror of
https://github.com/clementine-player/Clementine
synced 2025-01-24 00:11:43 +01:00
108 lines
4.0 KiB
C++
108 lines
4.0 KiB
C++
// Copyright (c) 2012, Google Inc.
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following disclaimer
|
|
// in the documentation and/or other materials provided with the
|
|
// distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived from
|
|
// this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// elfutils.h: Utilities for dealing with ELF files.
|
|
//
|
|
|
|
#ifndef COMMON_LINUX_ELFUTILS_H__
|
|
#define COMMON_LINUX_ELFUTILS_H__
|
|
|
|
#include <elf.h>
|
|
#include <link.h>
|
|
#include <stdint.h>
|
|
|
|
namespace google_breakpad {
|
|
|
|
// Traits classes so consumers can write templatized code to deal
|
|
// with specific ELF bits.
|
|
struct ElfClass32 {
|
|
typedef Elf32_Addr Addr;
|
|
typedef Elf32_Ehdr Ehdr;
|
|
typedef Elf32_Nhdr Nhdr;
|
|
typedef Elf32_Phdr Phdr;
|
|
typedef Elf32_Shdr Shdr;
|
|
typedef Elf32_Half Half;
|
|
typedef Elf32_Off Off;
|
|
typedef Elf32_Word Word;
|
|
static const int kClass = ELFCLASS32;
|
|
static const size_t kAddrSize = sizeof(Elf32_Addr);
|
|
};
|
|
|
|
struct ElfClass64 {
|
|
typedef Elf64_Addr Addr;
|
|
typedef Elf64_Ehdr Ehdr;
|
|
typedef Elf64_Nhdr Nhdr;
|
|
typedef Elf64_Phdr Phdr;
|
|
typedef Elf64_Shdr Shdr;
|
|
typedef Elf64_Half Half;
|
|
typedef Elf64_Off Off;
|
|
typedef Elf64_Word Word;
|
|
static const int kClass = ELFCLASS64;
|
|
static const size_t kAddrSize = sizeof(Elf64_Addr);
|
|
};
|
|
|
|
bool IsValidElf(const void* elf_header);
|
|
int ElfClass(const void* elf_base);
|
|
|
|
// Attempt to find a section named |section_name| of type |section_type|
|
|
// in the ELF binary data at |elf_mapped_base|. On success, returns true
|
|
// and sets |*section_start| to point to the start of the section data,
|
|
// and |*section_size| to the size of the section's data. If |elfclass|
|
|
// is not NULL, set |*elfclass| to the ELF file class.
|
|
bool FindElfSection(const void *elf_mapped_base,
|
|
const char *section_name,
|
|
uint32_t section_type,
|
|
const void **section_start,
|
|
int *section_size,
|
|
int *elfclass);
|
|
|
|
// Internal helper method, exposed for convenience for callers
|
|
// that already have more info.
|
|
template<typename ElfClass>
|
|
const typename ElfClass::Shdr*
|
|
FindElfSectionByName(const char* name,
|
|
typename ElfClass::Word section_type,
|
|
const typename ElfClass::Shdr* sections,
|
|
const char* section_names,
|
|
const char* names_end,
|
|
int nsection);
|
|
|
|
// Convert an offset from an Elf header into a pointer to the mapped
|
|
// address in the current process. Takes an extra template parameter
|
|
// to specify the return type to avoid having to dynamic_cast the
|
|
// result.
|
|
template<typename ElfClass, typename T>
|
|
const T*
|
|
GetOffset(const typename ElfClass::Ehdr* elf_header,
|
|
typename ElfClass::Off offset);
|
|
|
|
} // namespace google_breakpad
|
|
|
|
#endif // COMMON_LINUX_ELFUTILS_H__
|