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| Started by | Josh Poimboeuf <jpoimboe@redhat.com> |
|---|---|
| First post | 2015-08-14 05:20 +0200 |
| Last post | 2015-08-14 05:20 +0200 |
| Articles | 1 — 1 participant |
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[PATCH v10 02/20] x86/asm: Add C versions of frame pointer macros Josh Poimboeuf <jpoimboe@redhat.com> - 2015-08-14 05:20 +0200
| From | Josh Poimboeuf <jpoimboe@redhat.com> |
|---|---|
| Date | 2015-08-14 05:20 +0200 |
| Subject | [PATCH v10 02/20] x86/asm: Add C versions of frame pointer macros |
| Message-ID | <pXdHd-6tK-45@gated-at.bofh.it> |
Add C versions of the frame pointer 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 8a6cd26..9a30ec7 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_BEGIN \ + "push %" _ASM_BP "\n" \ + _ASM_MOV "%" _ASM_SP ", %" _ASM_BP "\n" + +#define FRAME_END "pop %" _ASM_BP "\n" + +#else /* !CONFIG_FRAME_POINTER */ + +#define FRAME_BEGIN "" +#define FRAME_END "" + +#endif /* CONFIG_FRAME_POINTER */ #endif /* __ASSEMBLY__ */ #endif /* _ASM_X86_FRAME_H */ -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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