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Diffstat (limited to 'externals/breakpad/src/common/linux/elfutils.h')
| -rw-r--r-- | externals/breakpad/src/common/linux/elfutils.h | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/externals/breakpad/src/common/linux/elfutils.h b/externals/breakpad/src/common/linux/elfutils.h deleted file mode 100644 index 130a8ac132..0000000000 --- a/externals/breakpad/src/common/linux/elfutils.h +++ /dev/null @@ -1,169 +0,0 @@ -// Copyright 2012 Google LLC -// -// 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 LLC 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> - -#include "common/memory_allocator.h" - -namespace google_breakpad { - -typedef struct Elf32_Chdr { - typedef Elf32_Word Type; - typedef Elf32_Word Size; - typedef Elf32_Addr Addr; - - static_assert(sizeof (Type) == 4); - static_assert(sizeof (Size) == 4); - static_assert(sizeof (Addr) == 4); - - Type ch_type; // Compression type - Size ch_size; // Uncompressed data size in bytes - Addr ch_addralign; // Uncompressed data alignment -} Elf32_Chdr; - -static_assert(sizeof (Elf32_Chdr) == 12); - -typedef struct Elf64_Chdr { - typedef Elf64_Word Type; - typedef Elf64_Xword Size; - typedef Elf64_Addr Addr; - - static_assert(sizeof (Type) == 4); - static_assert(sizeof (Size) == 8); - static_assert(sizeof (Addr) == 8); - - Type ch_type; // Compression type - Type ch_reserved; // Padding - Size ch_size; // Uncompressed data size in bytes - Addr ch_addralign; // Uncompressed data alignment -} Elf64_Chdr; - -static_assert(sizeof (Elf64_Chdr) == 24); - -// Traits classes so consumers can write templatized code to deal -// with specific ELF bits. -struct ElfClass32 { - typedef Elf32_Addr Addr; - typedef Elf32_Dyn Dyn; - typedef Elf32_Ehdr Ehdr; - typedef Elf32_Nhdr Nhdr; - typedef Elf32_Phdr Phdr; - typedef Elf32_Shdr Shdr; - typedef Elf32_Chdr Chdr; - typedef Elf32_Half Half; - typedef Elf32_Off Off; - typedef Elf32_Sym Sym; - typedef Elf32_Word Word; - - static const int kClass = ELFCLASS32; - static const uint16_t kMachine = EM_386; - static const size_t kAddrSize = sizeof(Elf32_Addr); - static constexpr const char* kMachineName = "x86"; -}; - -struct ElfClass64 { - typedef Elf64_Addr Addr; - typedef Elf64_Dyn Dyn; - typedef Elf64_Ehdr Ehdr; - typedef Elf64_Nhdr Nhdr; - typedef Elf64_Phdr Phdr; - typedef Elf64_Shdr Shdr; - typedef Elf64_Chdr Chdr; - typedef Elf64_Half Half; - typedef Elf64_Off Off; - typedef Elf64_Sym Sym; - typedef Elf64_Word Word; - - static const int kClass = ELFCLASS64; - static const uint16_t kMachine = EM_X86_64; - static const size_t kAddrSize = sizeof(Elf64_Addr); - static constexpr const char* kMachineName = "x86_64"; -}; - -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. -bool FindElfSection(const void* elf_mapped_base, - const char* section_name, - uint32_t section_type, - const void** section_start, - size_t* section_size); - -// 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); - -struct ElfSegment { - const void* start; - size_t size; -}; - -// Attempt to find all segments of type |segment_type| in the ELF -// binary data at |elf_mapped_base|. On success, returns true and fills -// |*segments| with a list of segments of the given type. -bool FindElfSegments(const void* elf_mapped_base, - uint32_t segment_type, - wasteful_vector<ElfSegment>* segments); - -// 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); - -// Read the value of DT_SONAME from the elf file mapped at |elf_base|. Returns -// true and fills |soname| with the result if found. -bool ElfFileSoNameFromMappedFile(const void* elf_base, - char* soname, - size_t soname_size); - -} // namespace google_breakpad - -#endif // COMMON_LINUX_ELFUTILS_H_ |