diff options
Diffstat (limited to 'src/common/linux/synth_elf.cc')
-rw-r--r-- | src/common/linux/synth_elf.cc | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/src/common/linux/synth_elf.cc b/src/common/linux/synth_elf.cc index 8f8aad32..3e10b691 100644 --- a/src/common/linux/synth_elf.cc +++ b/src/common/linux/synth_elf.cc @@ -3,10 +3,15 @@ #include <assert.h> #include <elf.h> #include <stdio.h> +#include <string.h> namespace google_breakpad { namespace synth_elf { +#ifndef NT_GNU_BUILD_ID +#define NT_GNU_BUILD_ID 3 +#endif + ELF::ELF(uint16_t machine, uint8_t file_class, Endianness endianness) @@ -169,6 +174,31 @@ void SymbolTable::AddSymbol(const string& name, uint64_t value, D64(size); } +BuildIDNote::BuildIDNote(const uint8_t* id_bytes, + size_t id_size, + Endianness endianness) : Section(endianness) { + const char kNoteName[] = "GNU"; + // Elf32_Nhdr and Elf64_Nhdr are exactly the same. + Elf32_Nhdr note_header; + memset(¬e_header, 0, sizeof(note_header)); + note_header.n_namesz = sizeof(kNoteName); + note_header.n_descsz = id_size; + note_header.n_type = NT_GNU_BUILD_ID; + + Append(reinterpret_cast<const uint8_t*>(¬e_header), + sizeof(note_header)); + AppendCString(kNoteName); + Append(id_bytes, id_size); +} + +// static +void BuildIDNote::AppendSection(ELF& elf, + const uint8_t* id_bytes, + size_t id_size) { + const char kBuildIDSectionName[] = ".note.gnu.build-id"; + BuildIDNote note(id_bytes, id_size, elf.endianness()); + elf.AddSection(kBuildIDSectionName, note, SHT_NOTE); +} + } // namespace synth_elf } // namespace google_breakpad - |