var wflag = flag.Bool("w", false, "write build ID")

func main() {
	log.SetPrefix("buildid: ")
	log.SetFlags(0)
	flag.Usage = usage
	flag.Parse()
	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

func Parse() {
	objabi.Flagparse(Usage)
	if flag.NArg() == 0 {
		flag.Usage()
	}

	// Flag refinement.
	if *OutputFile == "" {
		if flag.NArg() != 1 {
			flag.Usage()
		}
		input := filepath.Base(flag.Arg(0))
		input = strings.TrimSuffix(input, ".s")
		*OutputFile = fmt.Sprintf("%s.o", input)
	}

		os.Exit(0)
	}

	flag.Usage = usage
	flag.Parse()
	if flag.NArg() != 1 {
		usage()
	}

	f, err := objfile.Open(flag.Arg(0))
	if err != nil {
		log.Fatal(err)
	}
	defer f.Close()

	tab, err := f.PCLineTable()
	if err != nil {
		log.Fatalf("reading %s: %v", flag.Arg(0), err)
	}

	stdin := bufio.NewScanner(os.Stdin)
	stdout := bufio.NewWriter(os.Stdout)

	for stdin.Scan() {
		p := stdin.Text()

two:
	RET
TEXT ·a12(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	JMP one
two:
	ORQ R15, R15
	RET
one:
	MOVL $0, R15
	JMP two

// Ensure 3-arg instructions get GOT-rewritten without errors.
// See issue 58735.
TEXT ·a13(SB), 0, $0-0
	MULXQ runtime·writeBarrier(SB), AX, CX
	RET

// Various special cases in the use-R15-after-global-access-when-dynlinking check.