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Date: Wed, 13 Oct 2021 11:16:58 -0700
From: Sami Tolvanen <samitolvanen@...gle.com>
To: x86@...nel.org
Cc: Kees Cook <keescook@...omium.org>,
Josh Poimboeuf <jpoimboe@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Sedat Dilek <sedat.dilek@...il.com>,
Steven Rostedt <rostedt@...dmis.org>,
linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
llvm@...ts.linux.dev, Sami Tolvanen <samitolvanen@...gle.com>
Subject: [PATCH v5 15/15] x86, build: Allow CONFIG_CFI_CLANG to be selected
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@...gle.com>
Tested-by: Nick Desaulniers <ndesaulniers@...gle.com>
Tested-by: Sedat Dilek <sedat.dilek@...il.com>
---
arch/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)
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
--
2.33.0.1079.g6e70778dc9-goog
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