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Support generic Elf notes, with unit tests

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A=Mike Hommey <mh@glandium.org>
R=ted at https://breakpad.appspot.com/546002/

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1142 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek@gmail.com 2013-04-04 16:24:44 +00:00
parent 3a8617eb8c
commit 6dc56cca44
4 changed files with 63 additions and 27 deletions
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27
src/common/linux/synth_elf.cc
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@ -243,30 +243,21 @@ 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";
void Notes::AddNote(int type, const string &name, const uint8_t* desc_bytes,
size_t desc_size) {
// Elf32_Nhdr and Elf64_Nhdr are exactly the same.
Elf32_Nhdr note_header;
memset(&note_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;
note_header.n_namesz = name.length() + 1;
note_header.n_descsz = desc_size;
note_header.n_type = type;
Append(reinterpret_cast<const uint8_t*>(&note_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);
AppendCString(name);
Align(4);
Append(desc_bytes, desc_size);
Align(4);
}
} // namespace synth_elf