diff options
Diffstat (limited to 'src/common/linux/dump_symbols.cc')
| -rw-r--r-- | src/common/linux/dump_symbols.cc | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/src/common/linux/dump_symbols.cc b/src/common/linux/dump_symbols.cc index c3648e9a..da4263f7 100644 --- a/src/common/linux/dump_symbols.cc +++ b/src/common/linux/dump_symbols.cc @@ -123,17 +123,31 @@ static const ElfW(Shdr) *FindSectionByName(const char *name, return NULL; } -static bool LoadStabs(const ElfW(Shdr) *stab_section, +static bool LoadStabs(const ElfW(Ehdr) *elf_header, + const ElfW(Shdr) *stab_section, const ElfW(Shdr) *stabstr_section, Module *module) { + // Figure out what endianness this file is. + bool big_endian; + if (elf_header->e_ident[EI_DATA] == ELFDATA2LSB) + big_endian = false; + else if (elf_header->e_ident[EI_DATA] == ELFDATA2MSB) + big_endian = true; + else { + fprintf(stderr, "bad data encoding in ELF header: %d\n", + elf_header->e_ident[EI_DATA]); + return false; + } // A callback object to handle data from the STABS reader. DumpStabsHandler handler(module); // Find the addresses of the STABS data, and create a STABS reader object. + // On Linux, STABS entries always have 32-bit values, regardless of the + // address size of the architecture whose code they're describing. uint8_t *stabs = reinterpret_cast<uint8_t *>(stab_section->sh_offset); uint8_t *stabstr = reinterpret_cast<uint8_t *>(stabstr_section->sh_offset); google_breakpad::StabsReader reader(stabs, stab_section->sh_size, stabstr, stabstr_section->sh_size, - &handler); + big_endian, 4, &handler); // Read the STABS data, and do post-processing. if (!reader.Process()) return false; @@ -330,7 +344,7 @@ static bool LoadSymbols(const std::string &obj_file, ElfW(Ehdr) *elf_header, const ElfW(Shdr) *stabstr_section = stab_section->sh_link + sections; if (stabstr_section) { found_debug_info_section = true; - if (!LoadStabs(stab_section, stabstr_section, module)) + if (!LoadStabs(elf_header, stab_section, stabstr_section, module)) fprintf(stderr, "%s: \".stab\" section found, but failed to load STABS" " debugging information\n", obj_file.c_str()); } |