| // Copyright 2014 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. | 
 |  | 
 | package runtime | 
 |  | 
 | func checkgoarm() { | 
 | 	return // NaCl/ARM only supports ARMv7 | 
 | } | 
 |  | 
 | //go:nosplit | 
 | func cputicks() int64 { | 
 | 	// Currently cputicks() is used in blocking profiler and to seed runtime·fastrand1(). | 
 | 	// runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler. | 
 | 	// TODO: need more entropy to better seed fastrand1. | 
 | 	return nanotime() | 
 | } |