diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2021-03-08 10:46:56 -0800 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2021-03-11 14:40:50 +0900 |
| commit | bf3c255150619b71badb328c4dab48401a7ed62d (patch) | |
| tree | 736278ab31b187f28405558704c86f3c462c958e /arch | |
| parent | 2eab791f940b98d0bdd4d1e8c4857f3dec3c7d04 (diff) | |
kbuild: Allow LTO to be selected with KASAN_HW_TAGS
While LTO with KASAN is normally not useful, hardware tag-based KASAN
can be used also in production kernels with ARM64_MTE. Therefore, allow
KASAN_HW_TAGS to be selected together with HAS_LTO_CLANG.
Reported-by: Alistair Delva <adelva@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 2bb30673d8e6..2e7139b39e8f 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -638,7 +638,7 @@ config HAS_LTO_CLANG depends on $(success,$(AR) --help | head -n 1 | grep -qi llvm) depends on ARCH_SUPPORTS_LTO_CLANG depends on !FTRACE_MCOUNT_USE_RECORDMCOUNT - depends on !KASAN + depends on !KASAN || KASAN_HW_TAGS depends on !GCOV_KERNEL help The compiler and Kconfig options support building with Clang's |