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 /* text_mapping.pages is big enough for data/size page pointers */ 17 struct vm_special_mapping text_mapping; 18 19 unsigned long alt, alt_len; 20 21 long sym_vvar_start; /* Negative offset to the vvar area */ 22 23 long sym_vvar_page; 24 long sym_hpet_page; 25 long sym_VDSO32_NOTE_MASK; 26 long sym___kernel_sigreturn; 27 long sym___kernel_rt_sigreturn; 28 long sym___kernel_vsyscall; 29 long sym_VDSO32_SYSENTER_RETURN; 30}; 31 32#ifdef CONFIG_X86_64 33extern const struct vdso_image vdso_image_64; 34#endif 35 36#ifdef CONFIG_X86_X32 37extern const struct vdso_image vdso_image_x32; 38#endif 39 40#if defined CONFIG_X86_32 || defined CONFIG_COMPAT 41extern const struct vdso_image vdso_image_32_int80; 42#ifdef CONFIG_COMPAT 43extern const struct vdso_image vdso_image_32_syscall; 44#endif 45extern const struct vdso_image vdso_image_32_sysenter; 46 47extern const struct vdso_image *selected_vdso32; 48#endif 49 50extern void __init init_vdso_image(const struct vdso_image *image); 51 52#endif /* __ASSEMBLER__ */ 53 54#endif /* _ASM_X86_VDSO_H */ 55