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| author | Sami Tolvanen | 2020-08-06 15:15:02 -0700 |
|---|---|---|
| committer | Kees Cook | 2021-02-23 12:46:57 -0800 |
| commit | 6dafca97803309c3cb5148d449bfa711e41ddef2 (patch) | |
| tree | a1cf7fed79ecf2b3501444ff9cc6248c8f4b62ff | |
| parent | 22c8542d7b220ffc53816d47b371b1fe34341d4a (diff) | |
x86, build: use objtool mcount
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>
| -rw-r--r-- | arch/x86/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7b6dd10b162a..9cd9bd6562e3 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -167,6 +167,7 @@ config X86 select HAVE_CONTEXT_TRACKING if X86_64 select HAVE_CONTEXT_TRACKING_OFFSTACK if HAVE_CONTEXT_TRACKING select HAVE_C_RECORDMCOUNT + select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_CONTIGUOUS select HAVE_DYNAMIC_FTRACE |