diff mbox series

[v5,15/15] x86, build: Allow CONFIG_CFI_CLANG to be selected

Message ID 20211013181658.1020262-16-samitolvanen@google.com (mailing list archive)
State Changes Requested
Headers show
Series x86: Add support for Clang CFI | expand

Commit Message

Sami Tolvanen Oct. 13, 2021, 6:16 p.m. UTC 
Select ARCH_SUPPORTS_CFI_CLANG to allow CFI to be enabled with
Clang >= 13.

Link: https://bugs.llvm.org/show_bug.cgi?id=51588
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

Comments

Kees Cook Oct. 13, 2021, 6:56 p.m. UTC | #1 
On Wed, Oct 13, 2021 at 11:16:58AM -0700, Sami Tolvanen wrote:
> Select ARCH_SUPPORTS_CFI_CLANG to allow CFI to be enabled with
> Clang >= 13.
> 
> Link: https://bugs.llvm.org/show_bug.cgi?id=51588
> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

Reviewed-by: Kees Cook <keescook@chromium.org>
diff mbox series

Patch

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 47023166fb7b..1f310cc4e344 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -107,6 +107,7 @@  config X86
 	select ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP	if NR_CPUS <= 4096
 	select ARCH_SUPPORTS_LTO_CLANG
 	select ARCH_SUPPORTS_LTO_CLANG_THIN
+	select ARCH_SUPPORTS_CFI_CLANG		if X86_64 && CLANG_VERSION >= 130000
 	select ARCH_USE_BUILTIN_BSWAP
 	select ARCH_USE_MEMTEST
 	select ARCH_USE_QUEUED_RWLOCKS