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| author | kcbanner <kcbanner@gmail.com> | 2023-05-01 00:46:28 -0400 |
|---|---|---|
| committer | kcbanner <kcbanner@gmail.com> | 2023-07-20 22:58:12 -0400 |
| commit | ea9917d9bd921f9fc14028a8dbf9e3f0f2579120 (patch) | |
| tree | 5128a49e9c364c4b72b11c6d4afb14c35dcbcc6b /lib/std/elf.zig | |
| parent | 8a18abfd60392a3adcfc4e6cfa712f63ecf2bf67 (diff) | |
| download | zig-ea9917d9bd921f9fc14028a8dbf9e3f0f2579120.tar.gz zig-ea9917d9bd921f9fc14028a8dbf9e3f0f2579120.zip | |
debug: support loading elf debug info from external files
Some distributions (ie. Ubuntu) have their libc debug
info in separate files. This change allows the stack walking
code to read that debug info.
- add support for reading compressed ELF sections
- support reading the build-id from the elf headers in order to lookup external debug info
- support reading the .gnu_debuglink section to look up external debug info
Diffstat (limited to 'lib/std/elf.zig')
| -rw-r--r-- | lib/std/elf.zig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/std/elf.zig b/lib/std/elf.zig index 3ea136fabe..004e508960 100644 --- a/lib/std/elf.zig +++ b/lib/std/elf.zig @@ -371,6 +371,9 @@ pub const SHT_LOUSER = 0x80000000; /// End of application-specific pub const SHT_HIUSER = 0xffffffff; +// Note type for .note.gnu.build_id +pub const NT_GNU_BUILD_ID = 3; + /// Local symbol pub const STB_LOCAL = 0; /// Global symbol @@ -1055,6 +1058,11 @@ pub const Shdr = switch (@sizeOf(usize)) { 8 => Elf64_Shdr, else => @compileError("expected pointer size of 32 or 64"), }; +pub const Chdr = switch (@sizeOf(usize)) { + 4 => Elf32_Chdr, + 8 => Elf64_Chdr, + else => @compileError("expected pointer size of 32 or 64"), +}; pub const Sym = switch (@sizeOf(usize)) { 4 => Elf32_Sym, 8 => Elf64_Sym, |