1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_LINKAGE_H
3#define _ASM_X86_LINKAGE_H
4
5#include <linux/stringify.h>
6
7#undef notrace
8#define notrace __attribute__((no_instrument_function))
9
10#ifdef CONFIG_X86_32
11#define asmlinkage CPP_ASMLINKAGE __attribute__((regparm(0)))
12#endif /* CONFIG_X86_32 */
13
14#ifdef __ASSEMBLY__
15
16#if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
17#define __ALIGN		.p2align 4, 0x90
18#define __ALIGN_STR	__stringify(__ALIGN)
19#endif
20
21#if defined(CONFIG_RETHUNK) && !defined(__DISABLE_EXPORTS) && !defined(BUILD_VDSO)
22#define RET	jmp __x86_return_thunk
23#else /* CONFIG_RETPOLINE */
24#ifdef CONFIG_SLS
25#define RET	ret; int3
26#else
27#define RET	ret
28#endif
29#endif /* CONFIG_RETPOLINE */
30
31#else /* __ASSEMBLY__ */
32
33#if defined(CONFIG_RETHUNK) && !defined(__DISABLE_EXPORTS) && !defined(BUILD_VDSO)
34#define ASM_RET	"jmp __x86_return_thunk\n\t"
35#else /* CONFIG_RETPOLINE */
36#ifdef CONFIG_SLS
37#define ASM_RET	"ret; int3\n\t"
38#else
39#define ASM_RET	"ret\n\t"
40#endif
41#endif /* CONFIG_RETPOLINE */
42
43#endif /* __ASSEMBLY__ */
44
45#endif /* _ASM_X86_LINKAGE_H */
46
47