linux/arch/x86/include/uapi/asm/vsyscall.h

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#ifndef _UAPI_ASM_X86_VSYSCALL_H
#define _UAPI_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))
#endif /* _UAPI_ASM_X86_VSYSCALL_H */