1#ifndef _ASM_X86_64_VSYSCALL_H_ 2#define _ASM_X86_64_VSYSCALL_H_ 3 4enum vsyscall_num { 5 __NR_vgettimeofday, 6 __NR_vtime, 7 __NR_vgetcpu, 8}; 9 10#define VSYSCALL_START (-10UL << 20) 11#define VSYSCALL_SIZE 1024 12#define VSYSCALL_END (-2UL << 20) 13#define VSYSCALL_MAPPED_PAGES 1 14#define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr)) 15 16#ifdef __KERNEL__ 17#include <linux/seqlock.h> 18 19#define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16))) 20#define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16))) 21 22/* Definitions for CONFIG_GENERIC_TIME definitions */ 23#define __section_vsyscall_gtod_data __attribute__ \ 24 ((unused, __section__ (".vsyscall_gtod_data"),aligned(16))) 25#define __section_vsyscall_clock __attribute__ \ 26 ((unused, __section__ (".vsyscall_clock"),aligned(16))) 27#define __vsyscall_fn __attribute__ ((unused,__section__(".vsyscall_fn"))) 28 29#define VGETCPU_RDTSCP 1 30#define VGETCPU_LSL 2 31 32extern int __vgetcpu_mode; 33extern volatile unsigned long __jiffies; 34 35/* kernel space (writeable) */ 36extern int vgetcpu_mode; 37extern struct timezone sys_tz; 38 39#endif /* __KERNEL__ */ 40 41#endif /* _ASM_X86_64_VSYSCALL_H_ */ 42