1 // Copyright 2009 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4 
5 // Return current time in nanoseconds.
6 
7 #include <sys/time.h>
8 
9 #include "runtime.h"
10 
11 int64 runtime_nanotime (void)
12   __attribute__ ((no_split_stack));
13 
14 int64
runtime_nanotime(void)15 runtime_nanotime (void)
16 {
17   struct timespec ts;
18 
19   clock_gettime (CLOCK_MONOTONIC, &ts);
20   return (int64) ts.tv_sec * 1000000000 + (int64) ts.tv_nsec;
21 }
22