telemetry.CountFlags("buildid/flag:", *flag.CommandLine)
	if flag.NArg() != 1 {
		usage()
	}

	file := flag.Arg(0)
	id, err := buildid.ReadFile(file)
	if err != nil {
		log.Fatal(err)
	}
	if !*wflag {
		fmt.Printf("%s\n", id)
		return
	}

	// Keep in sync with src/cmd/go/internal/work/buildid.go:updateBuildID

	f, err := os.Open(file)
	if err != nil {
		log.Fatal(err)
	}

	const buildID = "TestNoteReading-Build-ID"
	tg.run("build", "-ldflags", "-buildid="+buildID, "-o", tg.path("hello.exe"), tg.path("hello.go"))
	id, err := buildid.ReadFile(tg.path("hello.exe"))
	if err != nil {
		t.Fatalf("reading build ID from hello binary: %v", err)
	}
	if id != buildID {
		t.Fatalf("buildID in hello binary = %q, want %q", id, buildID)
	}

	switch {
	case !testenv.HasCGO():

// made to obtain the buildID information.
func (b *profileBuilder) readMapping() {
	if !machVMInfo(b.addMapping) {
		b.addMappingEntry(0, 0, 0, "", "", true)
	}
}

func readMainModuleMapping() (start, end uint64, exe, buildID string, err error) {
	first := true
	ok := machVMInfo(func(lo, hi, off uint64, file, build string) {
		if first {
			start, end = lo, hi

# check that PGO appears in build info
# N.B. we can't start the stdout check with -pgo because the script assumes that
# if the first arg starts with - it is a grep flag.
go version -m triv.exe
stdout 'build\s+-pgo=.*'${/}'prof'

# store the build ID
go list -export -json=BuildID -pgo=prof triv.go
stdout '"BuildID":' # check that output actually contains a build ID
cp stdout list.out

stale -cover m/example

# Collect build ID from for m/example built with -cover.
go list -cover -export -f '{{.BuildID}}' m/example
cp stdout $WORK/listbuildid.txt

# Now build the m/example binary with coverage.
go build -cover -o $WORK/m.exe m/example

# Ask for the binary build ID by running "go tool buildid".
go tool buildid $WORK/m.exe
cp stdout $WORK/rawtoolbuildid.txt

# Make sure that the two build IDs agree with respect to the

        }

        def projectId(String projectName) {
            def buildId = $buildId
            def projectPath = $projectPath
            return project.services.get(${BuildStateRegistry.name}).getBuild(buildId).projects.getProject(${Path.name}.path(projectPath)).componentIdentifier
        }
"""
    }

! go build -o $devnull cmd/buildid
stderr 'android/amd64 requires external \(cgo\) linking, but cgo is not enabled'
! stderr 'cannot find runtime/cgo'

! go test -c -o $devnull os
stderr '# os\nandroid/amd64 requires external \(cgo\) linking, but cgo is not enabled'
! stderr 'cannot find runtime/cgo'

env GOOS=ios GOARCH=arm64 CGO_ENABLED=0

! go build -o $devnull cmd/buildid

	if jobType == "presubmit" {
		return join(artifactsBase, "pr-logs/pull", fmt.Sprintf("%s_%s", repoOwner, repoName), pullNumber, jobName, buildID, name)
	}
	return join(artifactsBase, "logs", jobName, buildID, name)
}

func join(base string, elem ...string) string {
	res, _ := url.JoinPath(base, elem...)
	return res

	checkLinkOutput("0x"+strings.Repeat("00", 32), "usage")
	checkLinkOutput("0x"+strings.Repeat("00", 33), "-B option too long (max 32 digits)")
}

func checkLinkOutput(buildid string, message string) {
	cmd := exec.Command("go", "tool", "link", "-B", buildid)
	out, err := cmd.CombinedOutput()
	if err == nil {
		log.Fatalf("expected cmd/link to fail")
	}

	firstLine := string(bytes.SplitN(out, []byte("\n"), 2)[0])

                    // report lastModified, but file size would change so we would detect it!
                    padding "-" * publishId

                    // add a random build id to make sure file changes
                    buildId "$buildId"
                }
            }
            component {
                if (printComponentGAV) {
                    group this.group
                    module this.module