1#ifndef _ASM_X86_VDSO_H
 2#define _ASM_X86_VDSO_H
 3
 4#include <asm/page_types.h>
 5#include <linux/linkage.h>
 6#include <linux/init.h>
 7
 8#ifndef __ASSEMBLER__
 9
10#include <linux/mm_types.h>
11
12struct vdso_image {
13	void *data;
14	unsigned long size;   /* Always a multiple of PAGE_SIZE */
15
16	unsigned long alt, alt_len;
 
 
17
18	long sym_vvar_start;  /* Negative offset to the vvar area */
19
20	long sym_vvar_page;
21	long sym_hpet_page;
22	long sym_pvclock_page;
 
 
23	long sym_VDSO32_NOTE_MASK;
24	long sym___kernel_sigreturn;
25	long sym___kernel_rt_sigreturn;
26	long sym___kernel_vsyscall;
27	long sym_int80_landing_pad;
 
 
28};
29
30#ifdef CONFIG_X86_64
31extern const struct vdso_image vdso_image_64;
32#endif
33
34#ifdef CONFIG_X86_X32
35extern const struct vdso_image vdso_image_x32;
36#endif
37
38#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
39extern const struct vdso_image vdso_image_32;
40#endif
41
42extern void __init init_vdso_image(const struct vdso_image *image);
43
 
 
 
 
 
44#endif /* __ASSEMBLER__ */
45
46#endif /* _ASM_X86_VDSO_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_X86_VDSO_H
 3#define _ASM_X86_VDSO_H
 4
 5#include <asm/page_types.h>
 6#include <linux/linkage.h>
 7#include <linux/init.h>
 8
 9#ifndef __ASSEMBLER__
10
11#include <linux/mm_types.h>
12
13struct vdso_image {
14	void *data;
15	unsigned long size;   /* Always a multiple of PAGE_SIZE */
16
17	unsigned long alt, alt_len;
18	unsigned long extable_base, extable_len;
19	const void *extable;
20
21	long sym_vvar_start;  /* Negative offset to the vvar area */
22
23	long sym_vvar_page;
 
24	long sym_pvclock_page;
25	long sym_hvclock_page;
26	long sym_timens_page;
27	long sym_VDSO32_NOTE_MASK;
28	long sym___kernel_sigreturn;
29	long sym___kernel_rt_sigreturn;
30	long sym___kernel_vsyscall;
31	long sym_int80_landing_pad;
32	long sym_vdso32_sigreturn_landing_pad;
33	long sym_vdso32_rt_sigreturn_landing_pad;
34};
35
36#ifdef CONFIG_X86_64
37extern const struct vdso_image vdso_image_64;
38#endif
39
40#ifdef CONFIG_X86_X32_ABI
41extern const struct vdso_image vdso_image_x32;
42#endif
43
44#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
45extern const struct vdso_image vdso_image_32;
46#endif
47
48extern int __init init_vdso_image(const struct vdso_image *image);
49
50extern int map_vdso_once(const struct vdso_image *image, unsigned long addr);
51
52extern bool fixup_vdso_exception(struct pt_regs *regs, int trapnr,
53				 unsigned long error_code,
54				 unsigned long fault_addr);
55#endif /* __ASSEMBLER__ */
56
57#endif /* _ASM_X86_VDSO_H */