#ifndef _ASM_X86_VDSO_H #define _ASM_X86_VDSO_H 1 #ifdef CONFIG_X86_64 extern const char VDSO64_PRELINK[]; /* * Given a pointer to the vDSO image, find the pointer to VDSO64_name * as that symbol is defined in the vDSO sources or linker script. */ #define VDSO64_SYMBOL(base, name) ({ \ extern const char VDSO64_##name[]; \ (void *) (VDSO64_##name - VDSO64_PRELINK + (unsigned long) (base)); }) #endif #if defined CONFIG_X86_32 || defined CONFIG_COMPAT extern const char VDSO32_PRELINK[]; /* * Given a pointer to the vDSO image, find the pointer to VDSO32_name * as that symbol is defined in the vDSO sources or linker script. */ #define VDSO32_SYMBOL(base, name) ({ \ extern const char VDSO32_##name[]; \ (void *) (VDSO32_##name - VDSO32_PRELINK + (unsigned long) (base)); }) #endif #endif /* asm-x86/vdso.h */