Commit-ID: 6415b38bae2641ab6e173ffa4ff6a453b60ba99b Gitweb: https://git.kernel.org/tip/6415b38bae2641ab6e173ffa4ff6a453b60ba99b Author: Jiri Slaby <jslaby@xxxxxxx> AuthorDate: Fri, 18 May 2018 08:47:13 +0200 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Thu, 21 Jun 2018 16:34:56 +0200 x86/stacktrace: Enable HAVE_RELIABLE_STACKTRACE for the ORC unwinder In SUSE, we need a reliable stack unwinder for kernel live patching, but we do not want to enable frame pointers for performance reasons. So after the previous patches to make the ORC reliable, mark ORC as a reliable stack unwinder on x86. Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> Acked-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Brian Gerst <brgerst@xxxxxxxxx> Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx> Cc: H. Peter Anvin <hpa@xxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: https://lkml.kernel.org/lkml/20180518064713.26440-6-jslaby@xxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- arch/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index f1dbb4ee19d7..c4d64b19acff 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -180,7 +180,7 @@ config X86 select HAVE_PERF_USER_STACK_DUMP select HAVE_RCU_TABLE_FREE select HAVE_REGS_AND_STACK_ACCESS_API - select HAVE_RELIABLE_STACKTRACE if X86_64 && UNWINDER_FRAME_POINTER && STACK_VALIDATION + select HAVE_RELIABLE_STACKTRACE if X86_64 && (UNWINDER_FRAME_POINTER || UNWINDER_ORC) && STACK_VALIDATION select HAVE_STACKPROTECTOR if CC_HAS_SANE_STACKPROTECTOR select HAVE_STACK_VALIDATION if X86_64 select HAVE_RSEQ -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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