gcc/libgo/runtime/go-nanotime.c

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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Return current time in nanoseconds.
#include <sys/time.h>
#include "runtime.h"
int64 runtime_nanotime (void)
__attribute__ ((no_split_stack));
int64
runtime_nanotime (void)
{
struct timespec ts;
clock_gettime (CLOCK_MONOTONIC, &ts);
return (int64) ts.tv_sec * 1000000000 + (int64) ts.tv_nsec;
}