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 12 struct 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 31 extern const struct vdso_image vdso_image_64; 32 #endif 33 34 #ifdef CONFIG_X86_X32 35 extern const struct vdso_image vdso_image_x32; 36 #endif 37 38 #if defined CONFIG_X86_32 || defined CONFIG_COMPAT 39 extern const struct vdso_image vdso_image_32; 40 #endif 41 42 extern void __init init_vdso_image(const struct vdso_image *image); 43 44 #endif /* __ASSEMBLER__ */ 45 46 #endif /* _ASM_X86_VDSO_H */ 47