1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_X86_FRAME_H
 3#define _ASM_X86_FRAME_H
 4
 5#include <asm/asm.h>
 6
 7/*
 8 * These are stack frame creation macros.  They should be used by every
 9 * callable non-leaf asm function to make kernel stack traces more reliable.
10 */
11
12#ifdef CONFIG_FRAME_POINTER
13
14#ifdef __ASSEMBLY__
15
16.macro FRAME_BEGIN
17	push %_ASM_BP
18	_ASM_MOV %_ASM_SP, %_ASM_BP
19.endm
20
21.macro FRAME_END
22	pop %_ASM_BP
23.endm
24
25#else /* !__ASSEMBLY__ */
26
27#define FRAME_BEGIN				\
28	"push %" _ASM_BP "\n"			\
29	_ASM_MOV "%" _ASM_SP ", %" _ASM_BP "\n"
30
31#define FRAME_END "pop %" _ASM_BP "\n"
32
33#endif /* __ASSEMBLY__ */
34
35#define FRAME_OFFSET __ASM_SEL(4, 8)
36
37#else /* !CONFIG_FRAME_POINTER */
38
39#define FRAME_BEGIN
40#define FRAME_END
41#define FRAME_OFFSET 0
42
43#endif /* CONFIG_FRAME_POINTER */
44
45#endif /* _ASM_X86_FRAME_H */

 
 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 */