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cmd/addr2line: don't assume that GOROOT_FINAL is clean
Fixes #41447 Change-Id: I4460c1c7962d02c41622a5ea1a3c4bc3714a1873 Reviewed-on: https://go-review.googlesource.com/c/go/+/255477 Trust: Bryan C. Mills <bcmills@google.com> Run-TryBot: Bryan C. Mills <bcmills@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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@ -73,29 +73,37 @@ func testAddr2Line(t *testing.T, exepath, addr string) {
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if err != nil {
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t.Fatalf("Stat failed: %v", err)
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}
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// Debug paths are stored slash-separated, so convert to system-native.
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srcPath = filepath.FromSlash(srcPath)
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fi2, err := os.Stat(srcPath)
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if gorootFinal := os.Getenv("GOROOT_FINAL"); gorootFinal != "" && strings.HasPrefix(srcPath, gorootFinal) {
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if os.IsNotExist(err) || (err == nil && !os.SameFile(fi1, fi2)) {
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// srcPath has had GOROOT_FINAL substituted for GOROOT, and it doesn't
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// match the actual file. GOROOT probably hasn't been moved to its final
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// location yet, so try the original location instead.
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// If GOROOT_FINAL is set and srcPath is not the file we expect, perhaps
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// srcPath has had GOROOT_FINAL substituted for GOROOT and GOROOT hasn't been
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// moved to its final location yet. If so, try the original location instead.
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if gorootFinal := os.Getenv("GOROOT_FINAL"); gorootFinal != "" &&
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(os.IsNotExist(err) || (err == nil && !os.SameFile(fi1, fi2))) {
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// srcPath is clean, but GOROOT_FINAL itself might not be.
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// (See https://golang.org/issue/41447.)
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gorootFinal = filepath.Clean(gorootFinal)
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if strings.HasPrefix(srcPath, gorootFinal) {
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fi2, err = os.Stat(runtime.GOROOT() + strings.TrimPrefix(srcPath, gorootFinal))
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}
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}
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if err != nil {
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t.Fatalf("Stat failed: %v", err)
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}
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if !os.SameFile(fi1, fi2) {
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t.Fatalf("addr2line_test.go and %s are not same file", srcPath)
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}
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if srcLineNo != "99" {
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t.Fatalf("line number = %v; want 99", srcLineNo)
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if srcLineNo != "107" {
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t.Fatalf("line number = %v; want 107", srcLineNo)
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}
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}
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// This is line 98. The test depends on that.
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// This is line 106. The test depends on that.
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func TestAddr2Line(t *testing.T) {
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testenv.MustHaveGoBuild(t)
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