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- #ifndef _ASM_X86_VSYSCALL_H
- #define _ASM_X86_VSYSCALL_H
- #include <linux/seqlock.h>
- #include <uapi/asm/vsyscall.h>
- #ifdef CONFIG_X86_VSYSCALL_EMULATION
- extern void map_vsyscall(void);
- /*
- * Called on instruction fetch fault in vsyscall page.
- * Returns true if handled.
- */
- extern bool emulate_vsyscall(struct pt_regs *regs, unsigned long address);
- #else
- static inline void map_vsyscall(void) {}
- static inline bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
- {
- return false;
- }
- #endif
- #endif /* _ASM_X86_VSYSCALL_H */
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