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Message-ID: <a44ba16e194bcbc52c1cef3d3cd9051a62622723.1743481539.git.jpoimboe@kernel.org>
Date: Mon, 31 Mar 2025 21:26:36 -0700
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: x86@...nel.org
Cc: linux-kernel@...r.kernel.org,
Ingo Molnar <mingo@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
kernel test robot <lkp@...el.com>
Subject: [PATCH 01/11] objtool: Silence more KCOV warnings, part 2
Similar to GCOV, KCOV can leave behind dead code and undefined behavior.
Warnings related to those should be ignored.
The previous commit:
6b023c784204 ("objtool: Silence more KCOV warnings")
... only did so for CONFIG_CGOV_KERNEL. Also do it for CONFIG_KCOV, but
for real this time.
Fixes the following warning:
vmlinux.o: warning: objtool: synaptics_report_mt_data: unexpected end of section .text.synaptics_report_mt_data
Fixes: 6b023c784204 ("objtool: Silence more KCOV warnings")
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503282236.UhfRsF3B-lkp@intel.com/
Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
---
scripts/Makefile.lib | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index b93597420daf..4d543054f723 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -275,7 +275,7 @@ objtool-args-$(CONFIG_MITIGATION_SLS) += --sls
objtool-args-$(CONFIG_STACK_VALIDATION) += --stackval
objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call
objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess
-objtool-args-$(CONFIG_GCOV_KERNEL) += --no-unreachable
+objtool-args-$(or $(CONFIG_GCOV_KERNEL),$(CONFIG_KCOV)) += --no-unreachable
objtool-args-$(CONFIG_PREFIX_SYMBOLS) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES)
objtool-args-$(CONFIG_OBJTOOL_WERROR) += --Werror
--
2.48.1
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