Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.9 06/10] x86, build: use objtool mcount | Date | Tue, 2 Mar 2021 06:59:17 -0500 |
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From: Sami Tolvanen <samitolvanen@google.com>
[ Upstream commit 6dafca97803309c3cb5148d449bfa711e41ddef2 ]
Select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION is selected to use objtool to generate __mcount_loc sections for dynamic ftrace with Clang and gcc <5 (later versions of gcc use -mrecord-mcount).
Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 80636caee07c..b03d075ee9ee 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -101,6 +101,7 @@ config X86 select HAVE_CONTEXT_TRACKING if X86_64 select HAVE_COPY_THREAD_TLS select HAVE_C_RECORDMCOUNT + select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION select HAVE_DEBUG_KMEMLEAK select HAVE_DEBUG_STACKOVERFLOW select HAVE_DMA_API_DEBUG -- 2.30.1
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