diff options
Diffstat (limited to 'include/asm-x86/frame.i')
-rw-r--r-- | include/asm-x86/frame.i | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/asm-x86/frame.i b/include/asm-x86/frame.i new file mode 100644 index 000000000000..03620251ae17 --- /dev/null +++ b/include/asm-x86/frame.i | |||
@@ -0,0 +1,23 @@ | |||
1 | #include <asm/dwarf2.h> | ||
2 | |||
3 | /* The annotation hides the frame from the unwinder and makes it look | ||
4 | like a ordinary ebp save/restore. This avoids some special cases for | ||
5 | frame pointer later */ | ||
6 | #ifdef CONFIG_FRAME_POINTER | ||
7 | .macro FRAME | ||
8 | pushl %ebp | ||
9 | CFI_ADJUST_CFA_OFFSET 4 | ||
10 | CFI_REL_OFFSET ebp,0 | ||
11 | movl %esp,%ebp | ||
12 | .endm | ||
13 | .macro ENDFRAME | ||
14 | popl %ebp | ||
15 | CFI_ADJUST_CFA_OFFSET -4 | ||
16 | CFI_RESTORE ebp | ||
17 | .endm | ||
18 | #else | ||
19 | .macro FRAME | ||
20 | .endm | ||
21 | .macro ENDFRAME | ||
22 | .endm | ||
23 | #endif | ||