|  | // 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 | 
|  |  | 
|  | var hardDiv bool // TODO: set if a hardware divider is available | 
|  |  | 
|  | func checkgoarm() { | 
|  | // TODO(minux): FP checks like in os_linux_arm.go. | 
|  |  | 
|  | // NaCl/ARM only supports ARMv7 | 
|  | if goarm != 7 { | 
|  | print("runtime: NaCl requires ARMv7. Recompile using GOARM=7.\n") | 
|  | exit(1) | 
|  | } | 
|  | } | 
|  |  | 
|  | //go:nosplit | 
|  | func cputicks() int64 { | 
|  | // Currently cputicks() is used in blocking profiler and to seed runtime·fastrand(). | 
|  | // runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler. | 
|  | // TODO: need more entropy to better seed fastrand. | 
|  | return nanotime() | 
|  | } |