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bf6c55a8b3
This moves most misc/cgo tests to cmd/cgo/internal. This is mostly a trivial rename and updating dist/test.go for the new paths, plus excluding these packages from regular dist test registration. A few tests were sensitive to what path they ran in, so we update those. This will let these tests access facilities in internal/testenv. For #37486. Change-Id: I3ed417c7c22d9b667f2767c0cb1f59118fcd4af6 Reviewed-on: https://go-review.googlesource.com/c/go/+/492720 Run-TryBot: Austin Clements <austin@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org> Reviewed-by: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
107 lines
1.8 KiB
Go
107 lines
1.8 KiB
Go
// Copyright 2018 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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// Usage:
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//
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// checkdwarf <exe> <suffix>
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//
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// Opens <exe>, which must be an executable or a library and checks that
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// there is an entry in .debug_info whose name ends in <suffix>
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package main
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import (
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"debug/dwarf"
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"debug/elf"
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"debug/macho"
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"debug/pe"
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"fmt"
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"os"
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"strings"
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)
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func usage() {
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fmt.Fprintf(os.Stderr, "checkdwarf executable-or-library DIE-suffix\n")
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}
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type dwarfer interface {
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DWARF() (*dwarf.Data, error)
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}
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func openElf(path string) dwarfer {
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exe, err := elf.Open(path)
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if err != nil {
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return nil
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}
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return exe
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}
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func openMacho(path string) dwarfer {
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exe, err := macho.Open(path)
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if err != nil {
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return nil
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}
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return exe
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}
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func openPE(path string) dwarfer {
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exe, err := pe.Open(path)
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if err != nil {
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return nil
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}
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return exe
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}
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func main() {
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if len(os.Args) != 3 {
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usage()
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}
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exePath := os.Args[1]
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dieSuffix := os.Args[2]
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var exe dwarfer
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for _, openfn := range []func(string) dwarfer{openMacho, openPE, openElf} {
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exe = openfn(exePath)
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if exe != nil {
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break
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}
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}
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if exe == nil {
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fmt.Fprintf(os.Stderr, "could not open %s\n", exePath)
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os.Exit(1)
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}
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data, err := exe.DWARF()
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if err != nil {
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fmt.Fprintf(os.Stderr, "%s: error opening DWARF: %v\n", exePath, err)
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os.Exit(1)
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}
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rdr := data.Reader()
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for {
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e, err := rdr.Next()
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if err != nil {
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fmt.Fprintf(os.Stderr, "%s: error reading DWARF: %v\n", exePath, err)
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os.Exit(1)
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}
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if e == nil {
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break
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}
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name, hasname := e.Val(dwarf.AttrName).(string)
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if !hasname {
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continue
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}
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if strings.HasSuffix(name, dieSuffix) {
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// found
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os.Exit(0)
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}
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}
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fmt.Fprintf(os.Stderr, "%s: no entry with a name ending in %q was found\n", exePath, dieSuffix)
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os.Exit(1)
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}
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