// 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 darwin || dragonfly || freebsd || netbsd || openbsd

package syscall

import (
	"runtime"
	"unsafe"
)

var (
	freebsdConfArch       string // "machine $arch" line in kern.conftxt on freebsd
	minRoutingSockaddrLen = rsaAlignOf(0)
)

// 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 aix || darwin || dragonfly || freebsd || linux || netbsd || solaris || windows

package net

import (
	"runtime"
	"testing"
)

func TestTCPConnKeepAliveConfigDialer(t *testing.T) {
	maybeSkipKeepAliveTest(t)

	t.Cleanup(func() {

	// Note: the size of the buffer is small enough that the loop
	// below will need to execute multiple times. See issue #31368.
	size := N * unsafe.Offsetof(syscall.Dirent{}.Name) / 4
	if runtime.GOOS == "freebsd" || runtime.GOOS == "netbsd" {
		if size < 1024 {
			size = 1024 // DIRBLKSIZ, see issue 31403.
		}
	}

	// Make a directory containing N files
	d := t.TempDir()

	var files []string
	for i := 0; i < N; i++ {

func checkGdbEnvironment(t *testing.T) {
	testenv.MustHaveGoBuild(t)
	switch runtime.GOOS {
	case "darwin":
		t.Skip("gdb does not work on darwin")
	case "netbsd":
		t.Skip("gdb does not work with threads on NetBSD; see https://golang.org/issue/22893 and https://gnats.netbsd.org/52548")
	case "linux":
		if runtime.GOARCH == "ppc64" {
			t.Skip("skipping gdb tests on linux/ppc64; see https://golang.org/issue/17366")
		}

// Copyright 2013 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 darwin || dragonfly || freebsd || netbsd || openbsd

package runtime

// Integrated network poller (kqueue-based implementation).

import (
	"internal/goarch"
	"internal/runtime/atomic"
	"unsafe"
)

var (
	kq             int32         = -1

// 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 aix || dragonfly || freebsd || (js && wasm) || wasip1 || linux || netbsd || openbsd || solaris

package os

import (
	"internal/byteorder"
	"internal/goarch"
	"io"
	"runtime"
	"sync"
	"syscall"
	"unsafe"
)

// Auxiliary information if the File describes a directory

			{"udp6", "[" + addr + "%" + ifi.Name + "]:0", false},
		}...)
		switch runtime.GOOS {
		case "darwin", "ios", "dragonfly", "freebsd", "openbsd", "netbsd":
			ipv6LinkLocalUnicastTCPTests = append(ipv6LinkLocalUnicastTCPTests, []ipv6LinkLocalUnicastTest{
				{"tcp", "[localhost%" + ifi.Name + "]:0", true},
				{"tcp6", "[localhost%" + ifi.Name + "]:0", true},
			}...)

		printCmdOut(w, "", "sw_vers")
	case "linux":
		printCmdOut(w, "uname -sr: ", "uname", "-sr")
		printCmdOut(w, "", "lsb_release", "-a")
		printGlibcVersion(w)
	case "openbsd", "netbsd", "freebsd", "dragonfly":
		printCmdOut(w, "uname -v: ", "uname", "-v")
	case "illumos", "solaris":
		// Be sure to use the OS-supplied uname, in "/usr/bin":
		printCmdOut(w, "uname -srv: ", "/usr/bin/uname", "-srv")

	"android/arm":     true,
	"android/arm64":   true,
	"ios/arm64":       true,
	"ios/amd64":       true,
	"js/wasm":         false,
	"wasip1/wasm":     false,
	"netbsd/386":      true,
	"netbsd/amd64":    true,
	"netbsd/arm":      true,
	"netbsd/arm64":    true,
	"openbsd/386":     true,
	"openbsd/amd64":   true,
	"openbsd/arm":     true,
	"openbsd/arm64":   true,
	"openbsd/mips64":  true,

				}
			}

			// Static linking tests
			if goos != "android" && p != "netbsd/arm" {
				// TODO(#56629): Why does this fail on netbsd-arm?
				cgoTest("static", "testtls", "external", "static", staticCheck)
			}
			cgoTest("external", "testnocgo", "external", "", staticCheck)
			if goos != "android" {