1a2f01efa6
Update the Go library to the 1.10beta1 release.
Requires a few changes to the compiler for modifications to the map
runtime code, and to handle some nowritebarrier cases in the runtime.
Reviewed-on: https://go-review.googlesource.com/86455
gotools/:
* Makefile.am (go_cmd_vet_files): New variable.
(go_cmd_buildid_files, go_cmd_test2json_files): New variables.
(s-zdefaultcc): Change from constants to functions.
(noinst_PROGRAMS): Add vet, buildid, and test2json.
(cgo$(EXEEXT)): Link against $(LIBGOTOOL).
(vet$(EXEEXT)): New target.
(buildid$(EXEEXT)): New target.
(test2json$(EXEEXT)): New target.
(install-exec-local): Install all $(noinst_PROGRAMS).
(uninstall-local): Uninstasll all $(noinst_PROGRAMS).
(check-go-tool): Depend on $(noinst_PROGRAMS). Copy down
objabi.go.
(check-runtime): Depend on $(noinst_PROGRAMS).
(check-cgo-test, check-carchive-test): Likewise.
(check-vet): New target.
(check): Depend on check-vet. Look at cmd_vet-testlog.
(.PHONY): Add check-vet.
* Makefile.in: Rebuild.
From-SVN: r256365
74 lines
1.3 KiB
Go
74 lines
1.3 KiB
Go
// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"flag"
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"fmt"
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"log"
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"os"
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"strings"
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"cmd/internal/buildid"
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)
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func usage() {
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fmt.Fprintf(os.Stderr, "usage: go tool buildid [-w] file\n")
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flag.PrintDefaults()
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os.Exit(2)
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}
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var wflag = flag.Bool("w", false, "write build ID")
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func main() {
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log.SetPrefix("buildid: ")
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log.SetFlags(0)
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flag.Usage = usage
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flag.Parse()
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if flag.NArg() != 1 {
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usage()
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}
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file := flag.Arg(0)
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id, err := buildid.ReadFile(file)
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if err != nil {
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log.Fatal(err)
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}
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if !*wflag {
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fmt.Printf("%s\n", id)
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return
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}
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f, err := os.Open(file)
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if err != nil {
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log.Fatal(err)
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}
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matches, hash, err := buildid.FindAndHash(f, id, 0)
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if err != nil {
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log.Fatal(err)
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}
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f.Close()
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tail := id
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if i := strings.LastIndex(id, "."); i >= 0 {
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tail = tail[i+1:]
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}
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if len(tail) != len(hash)*2 {
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log.Fatalf("%s: cannot find %d-byte hash in id %s", file, len(hash), id)
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}
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newID := id[:len(id)-len(tail)] + fmt.Sprintf("%x", hash)
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f, err = os.OpenFile(file, os.O_WRONLY, 0)
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if err != nil {
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log.Fatal(err)
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}
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if err := buildid.Rewrite(f, matches, newID); err != nil {
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log.Fatal(err)
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}
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if err := f.Close(); err != nil {
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log.Fatal(err)
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}
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}
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