var getwdCache struct {
	sync.Mutex
	dir string
}

// Getwd returns a rooted path name corresponding to the
// current directory. If the current directory can be
// reached via multiple paths (due to symbolic links),
// Getwd may return any one of them.
func Getwd() (dir string, err error) {
	if runtime.GOOS == "windows" || runtime.GOOS == "plan9" {
		return syscall.Getwd()
	}

	// Clumsy but widespread kludge:

		}
	}
	return false
}

// goroutine-specific getwd
func getwd() (wd string, err error) {
	fd, err := open(".", O_RDONLY)
	if err != nil {
		return "", err
	}
	defer Close(fd)
	return Fd2path(fd)
}

func Getwd() (wd string, err error) {
	wdmu.Lock()
	defer wdmu.Unlock()

	if wdSet {
		return wdStr, nil
	}
	wd, err = getwd()
	if err != nil {
		return
	}
	wdSet = true
	wdStr = wd

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

//go:build go1.5

package plan9

import "syscall"

func fixwd() {
	syscall.Fixwd()
}

func Getwd() (wd string, err error) {
	return syscall.Getwd()
}

func Chdir(path string) error {
	return syscall.Chdir(path)

  src/cmd/compile/internal/ssa/testdata/i22600.go
8:	func test() {
9:		pwd, err := os.Getwd()
10:		if err != nil {
14:		fmt.Println(pwd)
15:	}

  ./testdata/i22600.go
8:	func test() {
9:		pwd, err := os.Getwd()
10:		if err != nil {
14:		fmt.Println(pwd)
15:	}

package main

import (
	"fmt"
	"os"
)

func test() {
	pwd, err := os.Getwd()
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
	fmt.Println(pwd)
}

func main() {
	growstack() // Use stack early to prevent growth during test, which confuses gdb
	test()
}

var snk string

//go:noinline
func growstack() {
	snk = fmt.Sprintf("%#v,%#v,%#v", 1, true, "cat")

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

//go:build !go1.5

package plan9

func fixwd() {
}

func Getwd() (wd string, err error) {
	fd, err := open(".", O_RDONLY)
	if err != nil {
		return "", err
	}
	defer Close(fd)
	return Fd2path(fd)
}

func Chdir(path string) error {
	return chdir(path)

package os

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

//go:linkname executablePath
var executablePath string // set by sysauxv in ../runtime/os3_solaris.go

var initCwd, initCwdErr = Getwd()

func executable() (string, error) {
	path := executablePath
	if len(path) == 0 {
		path, err := syscall.Getexecname()
		if err != nil {
			return path, err
		}
	}
	if len(path) > 0 && path[0] != '/' {

	"reflect"
	"runtime"
	"strconv"
	"strings"
	"syscall"
	"testing"
	"time"
)

func init() {
	registerHelperCommand("pwd", cmdPwd)
}

func cmdPwd(...string) {
	pwd, err := os.Getwd()
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
	fmt.Println(pwd)
}

func TestCredentialNoSetGroups(t *testing.T) {
	if runtime.GOOS == "android" {
		maySkipHelperCommand("echo")

	// keep zoneinfo.zip for tethered iOS builds.
	// For self-hosted iOS builds, the zoneinfo.zip is in GOROOT.
	var roots []string
	if goroot != "" {
		roots = append(roots, goroot+"/lib/time")
	}
	wd, err := syscall.Getwd()
	if err == nil {
		roots = append(roots, wd)
	}
	for _, r := range roots {
		var st syscall.Stat_t
		fd, err := syscall.Open(r, syscall.O_RDONLY, 0)
		if err != nil {
			continue
		}