go os_linux_mips64x 源码
golang os_linux_mips64x 代码
文件路径：/src/runtime/os_linux_mips64x.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 linux && (mips64 || mips64le)
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()
}
const (
_SS_DISABLE = 2
_NSIG = 129
_SI_USER = 0
_SIG_BLOCK = 1
_SIG_UNBLOCK = 2
_SIG_SETMASK = 3
)
type sigset [2]uint64
var sigset_all = sigset{^uint64(0), ^uint64(0)}
//go:nosplit
//go:nowritebarrierrec
func sigaddset(mask *sigset, i int) {
(*mask)[(i-1)/64] |= 1 << ((uint32(i) - 1) & 63)
}
func sigdelset(mask *sigset, i int) {
(*mask)[(i-1)/64] &^= 1 << ((uint32(i) - 1) & 63)
}
//go:nosplit
func sigfillset(mask *[2]uint64) {
(*mask)[0], (*mask)[1] = ^uint64(0), ^uint64(0)
}
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