1 // Copyright 2014 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 package runtime 6 7 func checkgoarm() { 8 // TODO(minux): FP checks like in os_linux_arm.go. 9 10 // NaCl/ARM only supports ARMv7 11 if goarm != 7 { 12 print("runtime: NaCl requires ARMv7. Recompile using GOARM=7.\n") 13 exit(1) 14 } 15 } 16 17 //go:nosplit 18 func cputicks() int64 { 19 // Currently cputicks() is used in blocking profiler and to seed runtimefastrand(). 20 // runtimenanotime() is a poor approximation of CPU ticks that is enough for the profiler. 21 // TODO: need more entropy to better seed fastrand. 22 return nanotime() 23 } 24
