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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef _ASM_X86_FRAME_H
2#define _ASM_X86_FRAME_H
3
4#include <asm/asm.h>
5
6/*
7 * These are stack frame creation macros. They should be used by every
8 * callable non-leaf asm function to make kernel stack traces more reliable.
9 */
10
11#ifdef CONFIG_FRAME_POINTER
12
13#ifdef __ASSEMBLY__
14
15.macro FRAME_BEGIN
16 push %_ASM_BP
17 _ASM_MOV %_ASM_SP, %_ASM_BP
18.endm
19
20.macro FRAME_END
21 pop %_ASM_BP
22.endm
23
24#else /* !__ASSEMBLY__ */
25
26#define FRAME_BEGIN \
27 "push %" _ASM_BP "\n" \
28 _ASM_MOV "%" _ASM_SP ", %" _ASM_BP "\n"
29
30#define FRAME_END "pop %" _ASM_BP "\n"
31
32#endif /* __ASSEMBLY__ */
33
34#define FRAME_OFFSET __ASM_SEL(4, 8)
35
36#else /* !CONFIG_FRAME_POINTER */
37
38#define FRAME_BEGIN
39#define FRAME_END
40#define FRAME_OFFSET 0
41
42#endif /* CONFIG_FRAME_POINTER */
43
44#endif /* _ASM_X86_FRAME_H */