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- #ifndef _ASM_X86_VSYSCALL_H
- #define _ASM_X86_VSYSCALL_H
-
- enum vsyscall_num {
- __NR_vgettimeofday,
- __NR_vtime,
- __NR_vgetcpu,
- };
-
- #define VSYSCALL_START (-10UL << 20)
- #define VSYSCALL_SIZE 1024
- #define VSYSCALL_END (-2UL << 20)
- #define VSYSCALL_MAPPED_PAGES 1
- #define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr))
-
- #ifdef __KERNEL__
- #include <linux/seqlock.h>
-
- #define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16)))
- #define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16)))
-
- /* Definitions for CONFIG_GENERIC_TIME definitions */
- #define __section_vsyscall_gtod_data __attribute__ \
- ((unused, __section__ (".vsyscall_gtod_data"),aligned(16)))
- #define __section_vsyscall_clock __attribute__ \
- ((unused, __section__ (".vsyscall_clock"),aligned(16)))
- #define __vsyscall_fn \
- __attribute__ ((unused, __section__(".vsyscall_fn"))) notrace
-
- #define VGETCPU_RDTSCP 1
- #define VGETCPU_LSL 2
-
- extern int __vgetcpu_mode;
- extern volatile unsigned long __jiffies;
-
- /* kernel space (writeable) */
- extern int vgetcpu_mode;
- extern struct timezone sys_tz;
-
- extern void map_vsyscall(void);
-
- #endif /* __KERNEL__ */
-
- #endif /* _ASM_X86_VSYSCALL_H */
-