[thirdparty/kernel/linux.git] / arch / x86 / include / asm / frame.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_FRAME_H
#define _ASM_X86_FRAME_H

#include <asm/asm.h>

/*
 * These are stack frame creation macros.  They should be used by every
 * callable non-leaf asm function to make kernel stack traces more reliable.
 */

#ifdef CONFIG_FRAME_POINTER

#ifdef __ASSEMBLY__

.macro FRAME_BEGIN
	push %_ASM_BP
	_ASM_MOV %_ASM_SP, %_ASM_BP
.endm

.macro FRAME_END
	pop %_ASM_BP
.endm

#else /* !__ASSEMBLY__ */

#define FRAME_BEGIN				\
	"push %" _ASM_BP "\n"			\
	_ASM_MOV "%" _ASM_SP ", %" _ASM_BP "\n"

#define FRAME_END "pop %" _ASM_BP "\n"

#endif /* __ASSEMBLY__ */

#define FRAME_OFFSET __ASM_SEL(4, 8)

#else /* !CONFIG_FRAME_POINTER */

#define FRAME_BEGIN
#define FRAME_END
#define FRAME_OFFSET 0

#endif /* CONFIG_FRAME_POINTER */

#endif /* _ASM_X86_FRAME_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
997963ed JP	2	#ifndef _ASM_X86_FRAME_H
	3	#define _ASM_X86_FRAME_H
	4
4625cd63	5	#include <asm/asm.h>
ecaf45ee	6
997963ed JP	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	*/
ec518655	11
ecaf45ee	12	#ifdef CONFIG_FRAME_POINTER
997963ed	13
ec518655 JP	14	#ifdef __ASSEMBLY__
ec518655 JP	15
997963ed JP	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
ec518655 JP	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
997963ed JP	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 */
7e02cb94	44
997963ed	45	#endif /* _ASM_X86_FRAME_H */