golang cpu_riscv64 代码
文件路径：/src/vendor/golang.org/x/sys/cpu/cpu_riscv64.go
/ Copyright 2019 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 riscv64
/ +build riscv64
package cpu
const cacheLineSize = 32
func initOptions() {}