| // Copyright 2020 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 && !linux && !freebsd && !android && (!darwin || ios) |
| // +build arm64 |
| // +build !linux |
| // +build !freebsd |
| // +build !android |
| // +build !darwin ios |
| |
| package cpu |
| |
| func osInit() { |
| // Other operating systems do not support reading HWCap from auxiliary vector, |
| // reading privileged aarch64 system registers or sysctl in user space to detect |
| // CPU features at runtime. |
| } |
