// run

//go:build !nacl && !js && !wasip1 && !gccgo

// 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.

// Make sure we don't get an index out of bounds error
// while trying to print a map that is concurrently modified.
// The runtime might complain (throw) if it detects the modification,
// so we have to run the test as a subprocess.

// Copyright 2016 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 unix || (js && wasm) || wasip1

package syscall

// TimespecToNsec returns the time stored in ts as nanoseconds.
func TimespecToNsec(ts Timespec) int64 { return ts.Nano() }

// NsecToTimespec converts a number of nanoseconds into a [Timespec].

// run

//go:build !js && !wasip1 && gc

// Copyright 2017 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 main

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"log"
	"os"
	"os/exec"
	"path/filepath"
	"strings"
)

func main() {
	f, err := ioutil.TempFile("", "issue22660.go")
	if err != nil {
		log.Fatal(err)

// Copyright 2011 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 unix || (js && wasm) || wasip1

package os

const (
	PathSeparator     = '/' // OS-specific path separator
	PathListSeparator = ':' // OS-specific path list separator
)

// IsPathSeparator reports whether c is a directory separator character.

// run

//go:build !nacl && !js && !wasip1 && gc

// 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.

// Tests that when non-existent files are passed to the
// compiler, such as in:
//    go tool compile foo
// we don't print the beginning position:
//    foo:0: open foo: no such file or directory
// but instead omit it and print out:

	t.Run("MustHaveExec", func(t *testing.T) {
		testenv.MustHaveExec(t)
		t.Logf("MustHaveExec did not skip")
		hasExec = true
	})

	switch runtime.GOOS {
	case "js", "wasip1":
		if hasExec {
			// js and wasip1 lack an “exec” syscall.
			t.Errorf("expected MustHaveExec to skip on %v", runtime.GOOS)
		}
	case "ios":
		if b := testenv.Builder(); isCorelliumBuilder(b) && !hasExec {

// Copyright 2009 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 unix || js || wasip1

// Read system port mappings from /etc/services

package net

import (
	"internal/bytealg"
	"sync"
)

var onceReadServices sync.Once

func readServices() {
	file, err := open("/etc/services")
	if err != nil {
		return
	}

// Copyright 2023 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 unix || wasip1

package net

import "syscall"

// concurrentThreadsLimit returns the number of threads we permit to
// run concurrently doing DNS lookups via cgo. A DNS lookup may use a
// file descriptor so we limit this to less than the number of

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

package net

import (
	"bytes"
	"runtime"
	"testing"
	"time"
)

func TestRawConnReadWrite(t *testing.T) {
	switch runtime.GOOS {
	case "plan9", "js", "wasip1":
		t.Skipf("not supported on %s", runtime.GOOS)
	}

	t.Run("TCP", func(t *testing.T) {
		handler := func(ls *localServer, ln Listener) {
			c, err := ln.Accept()
			if err != nil {
				t.Error(err)
				return

// run

//go:build !nacl && !js && !wasip1 && !android && gc

// Copyright 2016 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 main

import (
	"bytes"
	"log"
	"os/exec"
	"strings"
)

func main() {
	checkLinkOutput("", "-B argument must start with 0x")
	checkLinkOutput("0", "-B argument must start with 0x")