diff options
| author | Josh Poimboeuf <jpoimboe@kernel.org> | 2025-09-17 09:04:03 -0700 |
|---|---|---|
| committer | Josh Poimboeuf <jpoimboe@kernel.org> | 2025-10-14 14:50:18 -0700 |
| commit | 164c9201e1dad8d5c0c38f583dba81e4b6da9cc7 (patch) | |
| tree | 0450426a0f0e5b73d640fe4419064db6d1507a1a /tools/objtool/include | |
| parent | 2058f6d1660edc4a9bda9bee627792b352121b10 (diff) | |
objtool: Add base objtool support for livepatch modules
In preparation for klp-build, enable "classic" objtool to work on
livepatch modules:
- Avoid duplicate symbol/section warnings for prefix symbols and the
.static_call_sites and __mcount_loc sections which may have already
been extracted by klp diff.
- Add __klp_funcs to the IBT function pointer section whitelist.
- Prevent KLP symbols from getting incorrectly classified as cold
subfunctions.
Acked-by: Petr Mladek <pmladek@suse.com>
Tested-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Diffstat (limited to 'tools/objtool/include')
| -rw-r--r-- | tools/objtool/include/objtool/elf.h | 1 | ||||
| -rw-r--r-- | tools/objtool/include/objtool/objtool.h | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/tools/objtool/include/objtool/elf.h b/tools/objtool/include/objtool/elf.h index 60f844e43c5a..21d8b825fd8f 100644 --- a/tools/objtool/include/objtool/elf.h +++ b/tools/objtool/include/objtool/elf.h @@ -88,6 +88,7 @@ struct symbol { u8 debug_checksum : 1; u8 changed : 1; u8 included : 1; + u8 klp : 1; struct list_head pv_target; struct reloc *relocs; struct section *group_sec; diff --git a/tools/objtool/include/objtool/objtool.h b/tools/objtool/include/objtool/objtool.h index 7f70b41d1b8d..f7051bbe0bcb 100644 --- a/tools/objtool/include/objtool/objtool.h +++ b/tools/objtool/include/objtool/objtool.h @@ -28,7 +28,7 @@ struct objtool_file { struct list_head mcount_loc_list; struct list_head endbr_list; struct list_head call_list; - bool ignore_unreachables, hints, rodata; + bool ignore_unreachables, hints, rodata, klp; unsigned int nr_endbr; unsigned int nr_endbr_int; |