{
			name: "freebsdlinux_no_resolv_conf",
			c: &conf{
				goos: "freebsd",
			},
			resolv:    defaultResolvConf,
			nss:       nssStr(t, "foo: bar"),
			hostTests: []nssHostTest{{"google.com", "myhostname", hostLookupFilesDNS}},
		},
		// On OpenBSD, no resolv.conf means no DNS.
		{
			name: "openbsd_no_resolv_conf",
			c: &conf{
				goos: "openbsd",
			},
			resolv:    defaultResolvConf,

// MatchFile returns false if the name contains a $GOOS or $GOARCH
// suffix which does not match the current system.
// The recognized name formats are:
//
//	name_$(GOOS).*
//	name_$(GOARCH).*
//	name_$(GOOS)_$(GOARCH).*
//	name_$(GOOS)_test.*
//	name_$(GOARCH)_test.*
//	name_$(GOOS)_$(GOARCH)_test.*
//
// Exceptions:
//
//	if GOOS=android, then files with GOOS=linux are also matched.

)

func TestRepeatBootstrap(t *testing.T) {
	if testing.Short() {
		t.Skip("skipping test that rebuilds the entire toolchain")
	}
	switch runtime.GOOS {
	case "android", "ios", "js", "wasip1":
		t.Skipf("skipping because the toolchain does not have to bootstrap on GOOS=%s", runtime.GOOS)
	}

	realGoroot := testenv.GOROOT(t)

	// To ensure that bootstrapping doesn't unexpectedly depend

	goarch := runtime.GOARCH
	if *target != "" {
		f := strings.Split(*target, "/")
		if len(f) != 2 {
			t.Fatalf("-target argument must be goos/goarch")
		}
		defer os.Setenv("GOOS", os.Getenv("GOOS"))
		defer os.Setenv("GOARCH", os.Getenv("GOARCH"))
		os.Setenv("GOOS", f[0])
		os.Setenv("GOARCH", f[1])
		goarch = f[1]
	}

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
			}

	match(runtime.GOOS+","+runtime.GOARCH, map[string]bool{runtime.GOOS: true, runtime.GOARCH: true})
	match(runtime.GOOS+","+runtime.GOARCH+",foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
	nomatch(runtime.GOOS+","+runtime.GOARCH+",!foo", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "foo": true})
	match(runtime.GOOS+","+runtime.GOARCH+",!bar", map[string]bool{runtime.GOOS: true, runtime.GOARCH: true, "bar": true})

}

// Indicates not to reserve swap space for the mapping.
const _sunosMAP_NORESERVE = 0x40

func sysReserveOS(v unsafe.Pointer, n uintptr) unsafe.Pointer {
	flags := int32(_MAP_ANON | _MAP_PRIVATE)
	if GOOS == "solaris" || GOOS == "illumos" {
		// Be explicit that we don't want to reserve swap space
		// for PROT_NONE anonymous mappings. This avoids an issue
		// wherein large mappings can cause fork to fail.
		flags |= _sunosMAP_NORESERVE

}
*/
import "C"

import (
	"runtime"
	"testing"
)

func testSigaltstack(t *testing.T) {
	switch {
	case runtime.GOOS == "solaris", runtime.GOOS == "illumos", runtime.GOOS == "ios" && runtime.GOARCH == "arm64":
		t.Skipf("switching signal stack not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
	}

	C.changeSignalStack()
	defer C.restoreSignalStack()
	defer func() {
		if recover() == nil {

[compiler:gccgo] skip # gccgo assumes cross-compilation is always possible

env GOOS=windwos # intentional misspelling of windows

! go build -n exclude

	runtime.GOOS == "openbsd" || // #60614
	runtime.GOOS == "solaris" || // #60968 #60970
	runtime.GOOS == "android" || // #60967
	runtime.GOOS == "illumos" || // #65544
	// These platforms fundamentally can't be supported:
	runtime.GOOS == "js" || // #60971
	runtime.GOOS == "wasip1" || // #60971