Messages in this thread Patch in this message | | | From | Josh Poimboeuf <> | Subject | [RFC PATCH 03/21] x86/asm: Add C versions of FRAME and ENDFRAME macros | Date | Fri, 17 Jul 2015 11:47:19 -0500 |
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Add C versions of the FRAME and ENDFRAME macros which can be used to create a stack frame in inline assembly.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> --- arch/x86/include/asm/frame.h | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/frame.h b/arch/x86/include/asm/frame.h index a9438cd..bfe96e3 100644 --- a/arch/x86/include/asm/frame.h +++ b/arch/x86/include/asm/frame.h @@ -1,10 +1,10 @@ #ifndef _ASM_X86_FRAME_H #define _ASM_X86_FRAME_H -#ifdef __ASSEMBLY__ - #include <asm/asm.h> +#ifdef __ASSEMBLY__ + /* * These are stack frame creation macros. They should be used by every * callable non-leaf asm function to make kernel stack traces more reliable. @@ -22,5 +22,21 @@ .endif .endm +#else /* !__ASSEMBLY__ */ + +#ifdef CONFIG_FRAME_POINTER + +#define FRAME \ + "push %" _ASM_BP ";" \ + _ASM_MOV "%" _ASM_SP ", %" _ASM_BP ";" + +#define ENDFRAME "pop %" _ASM_BP ";" + +#else /* !CONFIG_FRAME_POINTER */ + +#define FRAME "" +#define ENDFRAME "" + +#endif /* CONFIG_FRAME_POINTER */ #endif /* __ASSEMBLY__ */ #endif /* _ASM_X86_FRAME_H */ -- 2.1.0
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