| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 | |
| 13 | struct vdso_image { |
| 14 | void *data; |
| 15 | unsigned long size; /* Always a multiple of PAGE_SIZE */ |
| 16 | |
| 17 | unsigned long alt, alt_len; |
| 18 | |
| 19 | long sym_vvar_start; /* Negative offset to the vvar area */ |
| 20 | |
| 21 | long sym_vvar_page; |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 22 | long sym_pvclock_page; |
| 23 | long sym_hvclock_page; |
| 24 | long sym_VDSO32_NOTE_MASK; |
| 25 | long sym___kernel_sigreturn; |
| 26 | long sym___kernel_rt_sigreturn; |
| 27 | long sym___kernel_vsyscall; |
| 28 | long sym_int80_landing_pad; |
| 29 | }; |
| 30 | |
| 31 | #ifdef CONFIG_X86_64 |
| 32 | extern const struct vdso_image vdso_image_64; |
| 33 | #endif |
| 34 | |
| 35 | #ifdef CONFIG_X86_X32 |
| 36 | extern const struct vdso_image vdso_image_x32; |
| 37 | #endif |
| 38 | |
| 39 | #if defined CONFIG_X86_32 || defined CONFIG_COMPAT |
| 40 | extern const struct vdso_image vdso_image_32; |
| 41 | #endif |
| 42 | |
| 43 | extern void __init init_vdso_image(const struct vdso_image *image); |
| 44 | |
| 45 | extern int map_vdso_once(const struct vdso_image *image, unsigned long addr); |
| 46 | |
| 47 | #endif /* __ASSEMBLER__ */ |
| 48 | |
| 49 | #endif /* _ASM_X86_VDSO_H */ |