cloexec.h
#ifndef __PERF_CLOEXEC_H
#define __PERF_CLOEXEC_H
unsigned long perf_event_open_cloexec_flag(void);
#ifdef __GLIBC_PREREQ
#if !__GLIBC_PREREQ(2, 6) && !defined(__UCLIBC__)
extern int sched_getcpu(void) __THROW;
#endif
#endif
#endif /* __PERF_CLOEXEC_H */