1#include <time.h>
 2#include <errno.h>
 3#include <unistd.h>
 4#include "syscall.h"
 5
 6int clock_getcpuclockid(pid_t pid, clockid_t *clk)
 7{
 8	struct timespec ts;
 9	clockid_t id = (-pid-1)*8U + 2;
10	int ret = __syscall(SYS_clock_getres, id, &ts);
11	if (ret == -EINVAL) ret = -ESRCH;
12	if (ret) return -ret;
13	*clk = id;
14	return 0;
15}