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test/fixedbugs/issue10607a.go
81 строка
2 KB
Shintaro Kaneko
test: improve output format of issue10607a.go test
07 фев 2017, 17:00
07 фев 2017, 17:00
936749e
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// skip // Copyright 2015 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This is built by issue10607.go with a -B option. // Verify that we have one build-id note with the expected value. package main import ( "bytes" "debug/elf" "fmt" "os" ) func main() { f, err := elf.Open("/proc/self/exe") if err != nil { if os.IsNotExist(err) { return } fmt.Fprintln(os.Stderr, "opening /proc/self/exe:", err) os.Exit(1) } c := 0 fail := false for i, s := range f.Sections { if s.Type != elf.SHT_NOTE { continue } d, err := s.Data() if err != nil { fmt.Fprintf(os.Stderr, "reading data of note section %d: %v\n", i, err) continue } for len(d) > 0 { namesz := f.ByteOrder.Uint32(d) descsz := f.ByteOrder.Uint32(d[4:]) typ := f.ByteOrder.Uint32(d[8:]) an := (namesz + 3) &^ 3 ad := (descsz + 3) &^ 3 if int(12+an+ad) > len(d) { fmt.Fprintf(os.Stderr, "note section %d too short for header (%d < 12 + align(%d,4) + align(%d,4))\n", i, len(d), namesz, descsz) break } // 3 == NT_GNU_BUILD_ID if typ == 3 && namesz == 4 && bytes.Equal(d[12:16], []byte("GNU\000")) { id := string(d[12+an:12+an+descsz]) if id == "\x12\x34\x56\x78" { c++ } else { fmt.Fprintf(os.Stderr, "wrong build ID data: %q\n", id) fail = true } } d = d[12+an+ad:] } } if c == 0 { fmt.Fprintln(os.Stderr, "no build-id note") fail = true } else if c > 1 { fmt.Fprintln(os.Stderr, c, "build-id notes") fail = true } if fail { os.Exit(1) } }