// 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.

package testlog

import (
	"sync"
	_ "unsafe" // for linkname
)

// PanicOnExit0 reports whether to panic on a call to os.Exit(0).
// This is in the testlog package because, like other definitions in
// package testlog, it is a hook between the testing package and the

//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris

package syscall

import _ "unsafe"

// As of Go 1.22, the symbols below are found to be pulled via
// linkname in the wild. We provide a push linkname here, to
// keep them accessible with pull linknames.
// This may change in the future. Please do not depend on them
// in new code.

// golang.org/x/sys linknames getsockopt.

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package tls

import (
	"internal/godebug"
	"slices"
	_ "unsafe" // for linkname
)

// Defaults are collected in this file to allow distributions to more easily patch
// them to apply local policies.

var tlskyber = godebug.New("tlskyber")

func defaultCurvePreferences() []CurveID {

// license that can be found in the LICENSE file.

//go:build arm || wasm

// Export some functions via linkname to assembly in sync/atomic.
//
//go:linkname And32
//go:linkname Or32
//go:linkname And64
//go:linkname Or64
//go:linkname Anduintptr
//go:linkname Oruintptr

package atomic

import _ "unsafe" // For linkname

//go:nosplit
func And32(ptr *uint32, val uint32) uint32 {
	for {
		old := *ptr

// license that can be found in the LICENSE file.

package runtime

import "unsafe"

var labelSync uintptr

// runtime_setProfLabel should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:
//   - github.com/cloudwego/localsession
//   - github.com/DataDog/datadog-agent
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//

//
//go:nosplit
func rand32() uint32 {
	return uint32(rand())
}

// rand returns a random uint64 from the per-m chacha8 state.
// Do not change signature: used via linkname from other packages.
//
//go:nosplit
//go:linkname rand
func rand() uint64 {
	// Note: We avoid acquirem here so that in the fast path
	// there is just a getg, an inlined c.Next, and a return.

// license that can be found in the LICENSE file.

package x509

import (
	"internal/godebug"
	"sync"
	_ "unsafe" // for linkname
)

// systemRoots should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:
//   - github.com/breml/rootcerts
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.

	_cgo_getstackbound            unsafe.Pointer
)

// iscgo is set to true by the runtime/cgo package
//
// iscgo should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:
//   - github.com/ebitengine/purego
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname iscgo
var iscgo bool

// Copyright 2024 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.

// Linkname "var" to reference newcoro is not allowed.

package main

import "unsafe"

func main() {
	call(&newcoro)
}

//go:linkname newcoro runtime.newcoro
var newcoro unsafe.Pointer

//go:noinline
func call(*unsafe.Pointer) {
	// not implemented

// Copyright 2024 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.

// Test that a linkname applied on an assembly declaration
// does not affect stack map generation.

package main

import (
	"runtime"
	_ "unsafe"
)

//go:linkname asm
func asm(*int)

func main() {
	x := new(int)
	asm(x)
}

// called from asm