diff options
Diffstat (limited to 'arch/x86/include/asm/frame.h')
| -rw-r--r-- | arch/x86/include/asm/frame.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/x86/include/asm/frame.h b/arch/x86/include/asm/frame.h new file mode 100644 index 00000000..3b629f47 --- /dev/null +++ b/arch/x86/include/asm/frame.h @@ -0,0 +1,26 @@ +#ifdef __ASSEMBLY__ + +#include <asm/asm.h> +#include <asm/dwarf2.h> + +/* The annotation hides the frame from the unwinder and makes it look + like a ordinary ebp save/restore. This avoids some special cases for + frame pointer later */ +#ifdef CONFIG_FRAME_POINTER + .macro FRAME + __ASM_SIZE(push,_cfi) %__ASM_REG(bp) + CFI_REL_OFFSET __ASM_REG(bp), 0 + __ASM_SIZE(mov) %__ASM_REG(sp), %__ASM_REG(bp) + .endm + .macro ENDFRAME + __ASM_SIZE(pop,_cfi) %__ASM_REG(bp) + CFI_RESTORE __ASM_REG(bp) + .endm +#else + .macro FRAME + .endm + .macro ENDFRAME + .endm +#endif + +#endif /* __ASSEMBLY__ */ |