__NR_sched_yield
syscall == __NR_sched_yield)
__SYSCALL(__NR_sched_yield, sys_sched_yield)
return __nolibc_syscall0(__NR_sched_yield);
__SYSCALL(__NR_sched_yield, sys_sched_yield)
{ __NR_sched_yield, "sched_yield()" },