diff options
Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/common/linux/elf_core_dump.cc')
| -rw-r--r-- | toolkit/crashreporter/google-breakpad/src/common/linux/elf_core_dump.cc | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/common/linux/elf_core_dump.cc b/toolkit/crashreporter/google-breakpad/src/common/linux/elf_core_dump.cc deleted file mode 100644 index 0e7db7b1f..000000000 --- a/toolkit/crashreporter/google-breakpad/src/common/linux/elf_core_dump.cc +++ /dev/null @@ -1,179 +0,0 @@ -// Copyright (c) 2011, 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. - -// elf_core_dump.cc: Implement google_breakpad::ElfCoreDump. -// See elf_core_dump.h for details. - -#include "common/linux/elf_core_dump.h" - -#include <stddef.h> -#include <string.h> - -namespace google_breakpad { - -// Implementation of ElfCoreDump::Note. - -ElfCoreDump::Note::Note() {} - -ElfCoreDump::Note::Note(const MemoryRange& content) : content_(content) {} - -bool ElfCoreDump::Note::IsValid() const { - return GetHeader() != NULL; -} - -const ElfCoreDump::Nhdr* ElfCoreDump::Note::GetHeader() const { - return content_.GetData<Nhdr>(0); -} - -ElfCoreDump::Word ElfCoreDump::Note::GetType() const { - const Nhdr* header = GetHeader(); - // 0 is not being used as a NOTE type. - return header ? header->n_type : 0; -} - -MemoryRange ElfCoreDump::Note::GetName() const { - const Nhdr* header = GetHeader(); - if (header) { - return content_.Subrange(sizeof(Nhdr), header->n_namesz); - } - return MemoryRange(); -} - -MemoryRange ElfCoreDump::Note::GetDescription() const { - const Nhdr* header = GetHeader(); - if (header) { - return content_.Subrange(AlignedSize(sizeof(Nhdr) + header->n_namesz), - header->n_descsz); - } - return MemoryRange(); -} - -ElfCoreDump::Note ElfCoreDump::Note::GetNextNote() const { - MemoryRange next_content; - const Nhdr* header = GetHeader(); - if (header) { - size_t next_offset = AlignedSize(sizeof(Nhdr) + header->n_namesz); - next_offset = AlignedSize(next_offset + header->n_descsz); - next_content = - content_.Subrange(next_offset, content_.length() - next_offset); - } - return Note(next_content); -} - -// static -size_t ElfCoreDump::Note::AlignedSize(size_t size) { - size_t mask = sizeof(Word) - 1; - return (size + mask) & ~mask; -} - - -// Implementation of ElfCoreDump. - -ElfCoreDump::ElfCoreDump() {} - -ElfCoreDump::ElfCoreDump(const MemoryRange& content) - : content_(content) { -} - -void ElfCoreDump::SetContent(const MemoryRange& content) { - content_ = content; -} - -bool ElfCoreDump::IsValid() const { - const Ehdr* header = GetHeader(); - return (header && - header->e_ident[0] == ELFMAG0 && - header->e_ident[1] == ELFMAG1 && - header->e_ident[2] == ELFMAG2 && - header->e_ident[3] == ELFMAG3 && - header->e_ident[4] == kClass && - header->e_version == EV_CURRENT && - header->e_type == ET_CORE); -} - -const ElfCoreDump::Ehdr* ElfCoreDump::GetHeader() const { - return content_.GetData<Ehdr>(0); -} - -const ElfCoreDump::Phdr* ElfCoreDump::GetProgramHeader(unsigned index) const { - const Ehdr* header = GetHeader(); - if (header) { - return reinterpret_cast<const Phdr*>(content_.GetArrayElement( - header->e_phoff, header->e_phentsize, index)); - } - return NULL; -} - -const ElfCoreDump::Phdr* ElfCoreDump::GetFirstProgramHeaderOfType( - Word type) const { - for (unsigned i = 0, n = GetProgramHeaderCount(); i < n; ++i) { - const Phdr* program = GetProgramHeader(i); - if (program->p_type == type) { - return program; - } - } - return NULL; -} - -unsigned ElfCoreDump::GetProgramHeaderCount() const { - const Ehdr* header = GetHeader(); - return header ? header->e_phnum : 0; -} - -bool ElfCoreDump::CopyData(void* buffer, Addr virtual_address, size_t length) { - for (unsigned i = 0, n = GetProgramHeaderCount(); i < n; ++i) { - const Phdr* program = GetProgramHeader(i); - if (program->p_type != PT_LOAD) - continue; - - size_t offset_in_segment = virtual_address - program->p_vaddr; - if (virtual_address >= program->p_vaddr && - offset_in_segment < program->p_filesz) { - const void* data = - content_.GetData(program->p_offset + offset_in_segment, length); - if (data) { - memcpy(buffer, data, length); - return true; - } - } - } - return false; -} - -ElfCoreDump::Note ElfCoreDump::GetFirstNote() const { - MemoryRange note_content; - const Phdr* program_header = GetFirstProgramHeaderOfType(PT_NOTE); - if (program_header) { - note_content = content_.Subrange(program_header->p_offset, - program_header->p_filesz); - } - return Note(note_content); -} - -} // namespace google_breakpad |