gorootPath = runtime.GOROOT()
		if gorootPath != "" {
			return
		}

		// runtime.GOROOT is empty — perhaps go_android_exec was built with
		// -trimpath and GOROOT is unset. Try 'go env GOROOT' as a fallback,
		// assuming that the 'go' command in $PATH is the correct one.

		cmd := exec.Command("go", "env", "GOROOT")
		cmd.Stderr = os.Stderr
		out, err := cmd.Output()

The [GOROOT] function is now deprecated.
In new code prefer to use the system path to locate the “go” binary,

if [ ! -f run.bash ]; then
	echo 'buildall.bash must be run from $GOROOT/src' 1>&2
	exit 1
fi

sete=false
if [ "$1" = "-e" ]; then
	sete=true
	shift
fi

if [ "$sete" = true ]; then
	set -e
fi

pattern="$1"
if [ "$pattern" = "" ]; then
	pattern=.
fi

./make.bash || exit 1
GOROOT="$(cd .. && pwd)"

gettargets() {
	../bin/go tool dist list | sed -e 's|/|-|' |

To run tests on the Android device, add the bin directory to PATH so the
go tool can find the go_android_$GOARCH_exec wrapper generated by
make.bash. For example, to run the go1 benchmarks

	export PATH=$GOROOT/bin:$PATH
	cd $GOROOT/test/bench/go1/

// DO NOT EDIT THIS FILE DIRECTLY. These are build-time constants
// set through ‘buildscripts/gen-ldflags.go’.
var (
	// GOPATH - GOPATH value at the time of build.
	GOPATH = ""

	// GOROOT - GOROOT value at the time of build.
	GOROOT = ""

	// Version - version time.RFC3339.
	Version = "DEVELOPMENT.GOGET"

	// ReleaseTag - release tag in TAG.%Y-%m-%dT%H-%M-%SZ.
	ReleaseTag = "DEVELOPMENT.GOGET"

	}

	goPathList = strings.Split(goPath, pathSeparator)
	goRootList = strings.Split(goRoot, pathSeparator)
	defaultgoPathList = strings.Split(build.Default.GOPATH, pathSeparator)
	defaultgoRootList = strings.Split(build.Default.GOROOT, pathSeparator)

	// Add trim string "{GOROOT}/src/" into trimStrings
	trimStrings = []string{filepath.Join(runtime.GOROOT(), "src") + string(filepath.Separator)}

// and returns the path to the package source relative to $GOROOT (or $GOPATH).
func subdir() (pkgpath string, underGoRoot bool, err error) {
	cwd, err := os.Getwd()
	if err != nil {
		return "", false, err
	}
	cwd, err = filepath.EvalSymlinks(cwd)
	if err != nil {
		log.Fatal(err)
	}
	goroot, err := filepath.EvalSymlinks(runtime.GOROOT())
	if err != nil {
		return "", false, err
	}

in GOROOT/src.

Maintaining vendor directories
==============================

Before updating vendor directories, ensure that module mode is enabled.
Make sure that GO111MODULE is not set in the environment, or that it is
set to 'on' or 'auto', and if you use a go.work file, set GOWORK=off.

Also, ensure that 'go env GOROOT' shows the root of this Go source

pkg runtime, func GOROOT //deprecated #51473...

)

var flagCheck = flag.Bool("check", false, "run API checks")

func TestMain(m *testing.M) {
	flag.Parse()
	for _, c := range contexts {
		c.Compiler = build.Default.Compiler
	}
	build.Default.GOROOT = testenv.GOROOT(nil)

	os.Exit(m.Run())
}

var (
	updateGolden = flag.Bool("updategolden", false, "update golden files")
)

func TestGolden(t *testing.T) {
	if *flagCheck {