diff options
| author | Josh Poimboeuf <jpoimboe@kernel.org> | 2025-03-14 12:29:11 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2025-03-17 11:51:44 +0100 |
| commit | 36799069b48198e5ce92d99310060c4aecb4b3e3 (patch) | |
| tree | 92a2c5f313286a6f26aeadbf56af0c812385aed6 /scripts | |
| parent | aa8b3e64fd397eddd6a627d148a964e4bc2ed9ab (diff) | |
objtool: Add CONFIG_OBJTOOL_WERROR
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
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.lib | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index cad20f0e66ee..99e281966ba3 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -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) \ |