| commit | a7b67b080e1e782b6dc78b8e9c53631df2481c42 | [log] [tgz] |
|---|---|---|
| author | cmtice <cmtice@google.com> | Thu Apr 18 14:41:14 2024 -0700 |
| committer | Copybara-Service <copybara-worker@google.com> | Thu Apr 18 14:47:38 2024 -0700 |
| tree | 60b464de395d31b2a74ae29c7af0c569b0ec8734 | |
| parent | 7eaf8f9ea3333d3b3c2dffc95edc02221a566e10 [diff] |
[lld][ELF] Add --debug-names to create merged .debug_names. (#86508)
`clang -g -gpubnames` (with optional -gsplit-dwarf) creates the
`.debug_names` section ("per-CU" index). By default lld concatenates
input `.debug_names` sections into an output `.debug_names` section.
LLDB can consume the concatenated section but the lookup performance is
not good.
This patch adds --debug-names to create a per-module index by combining
the per-CU indexes into a single index that covers the entire load
module. The produced `.debug_names` is a replacement for `.gdb_index`.
Type units (-fdebug-types-section) are not handled yet.
Co-authored-by: Fangrui Song <i@maskray.me>
---------
Co-authored-by: Fangrui Song <i@maskray.me>
GitOrigin-RevId: 16711b431b843dd2143d38fdf6b0591dfb1783e0
This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.
lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.
In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.
It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz
The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.