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Groups > linux.kernel > #1342186
| From | Josh Poimboeuf <jpoimboe@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v17 3/9] x86/objtool: Enable objtool on x86_64 |
| Date | 2016-02-24 17:40 +0100 |
| Message-ID | <r5KDM-7ce-23@gated-at.bofh.it> (permalink) |
| References | <r5KDL-7ce-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Set HAVE_STACK_VALIDATION to enable stack metadata validation for x86_64. Also, disable objtool checking for the kexec purgatory code, because: 1. It's built by the archprepare target, which can run before objtool has been built yet. 2. It runs outside the scope of the kernel's normal mode of operation and doesn't need stack checking anyway. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> --- arch/x86/Kconfig | 1 + arch/x86/purgatory/Makefile | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c46662f..adc5a6d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -155,6 +155,7 @@ config X86 select VIRT_TO_BUS select X86_DEV_DMA_OPS if X86_64 select X86_FEATURE_NAMES if PROC_FS + select HAVE_STACK_VALIDATION if X86_64 config INSTRUCTION_DECODER def_bool y diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile index 2c835e3..92e3e1d 100644 --- a/arch/x86/purgatory/Makefile +++ b/arch/x86/purgatory/Makefile @@ -1,3 +1,5 @@ +OBJECT_FILES_NON_STANDARD := y + purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string.o targets += $(purgatory-y) -- 2.4.3
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[PATCH v17 3/9] x86/objtool: Enable objtool on x86_64 Josh Poimboeuf <jpoimboe@redhat.com> - 2016-02-24 17:40 +0100
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