Ything-RepoMirrors/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-01-24 23:16:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

objtool: Add CONFIG_OBJTOOL_WERROR

Browse Source 
Objtool warnings can be indicative of crashes, broken live patching, or
even boot failures.  Ignoring them is not recommended.

Add CONFIG_OBJTOOL_WERROR to upgrade objtool warnings to errors by
enabling the objtool --Werror option.  Also set --backtrace to print the
branches leading up to the warning, which can help considerably when
debugging certain warnings.

To avoid breaking bots too badly for now, make it the default for real
world builds only (!COMPILE_TEST).

Co-developed-by: Brendan Jackman <jackmanb@google.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/3e7c109313ff15da6c80788965cc7450115b0196.1741975349.git.jpoimboe@kernel.org
This commit is contained in:
Josh Poimboeuf
2025-03-14 12:29:11 -07:00
committed by Peter Zijlstra
parent aa8b3e64fd
commit 36799069b4
2 changed files with 12 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
scripts/Makefile.lib
View File

@@ -277,6 +277,7 @@ objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call
objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess
objtool-args-$(CONFIG_GCOV_KERNEL) += --no-unreachable
objtool-args-$(CONFIG_PREFIX_SYMBOLS) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES)
objtool-args-$(CONFIG_OBJTOOL_WERROR) += --Werror --backtrace
objtool-args = $(objtool-args-y) \
$(if $(delay-objtool), --link) \