Source file src/runtime/os_nacl_arm.go

     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 runtime·fastrand().
    20		// runtime·nanotime() 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	

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