golang os_linux_arm64 代码
文件路径：/src/runtime/os_linux_arm64.go
/ Copyright 2015 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.
/go:build arm64
package runtime
import "internal/cpu"
func archauxv(tag, val uintptr) {
switch tag {
case _AT_HWCAP:
cpu.HWCap = uint(val)
}
}
func osArchInit() {}
/go:nosplit
func cputicks() int64 {
/ Currently cputicks() is used in blocking profiler and to seed fastrand().
/ nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
return nanotime()
}