Function TestMachoFiles

internal/binutils/binutils_test.go:384–449

(t *testing.T)

}

func TestMachoFiles(t *testing.T) {
	// If this test fails, check the address for main function in testdata/exe_mac_64
	// and testdata/lib_mac_64 using addr2line or gaddr2line. Update the
	// hardcoded addresses below to match the addresses from the output.
	skipUnlessDarwinAmd64(t)

	// Load `file`, pretending it was mapped at `start`. Then get the symbol
	// table. Check that it contains the symbol `sym` and that the address
	// `addr` gives the `expected` stack trace.
	for _, tc := range []struct {
		desc                 string
		file                 string
		start, limit, offset uint64
		addr                 uint64
		sym                  string
		expected             []plugin.Frame
	}{
		{"normal mapping", "exe_mac_64", 0x100000000, math.MaxUint64, 0,
			0x100000f50, "_main",
			[]plugin.Frame{
				{Func: "main", File: "/tmp/hello.c", Line: 3, StartLine: 3},
			}},
		{"other mapping", "exe_mac_64", 0x200000000, math.MaxUint64, 0,
			0x200000f50, "_main",
			[]plugin.Frame{
				{Func: "main", File: "/tmp/hello.c", Line: 3, StartLine: 3},
			}},
		{"lib normal mapping", "lib_mac_64", 0, math.MaxUint64, 0,
			0xfa0, "_bar",
			[]plugin.Frame{
				{Func: "bar", File: "/tmp/lib.c", Line: 5, StartLine: 5},
			}},
	} {
		t.Run(tc.desc, func(t *testing.T) {
			bu := &Binutils{}
			f, err := bu.Open(filepath.Join("testdata", tc.file), tc.start, tc.limit, tc.offset, "")
			if err != nil {
				t.Fatalf("Open: unexpected error %v", err)
			}
			t.Logf("binutils: %v", bu)
			if runtime.GOOS == "darwin" && !bu.rep.addr2lineFound && !bu.rep.llvmSymbolizerFound {
				// On macOS, user needs to install gaddr2line or llvm-symbolizer with
				// Homebrew, skip the test when the environment doesn't have it
				// installed.
				t.Skip("couldn't find addr2line or gaddr2line")
			}
			defer f.Close()
			syms, err := f.Symbols(nil, 0)
			if err != nil {
				t.Fatalf("Symbols: unexpected error %v", err)
			}

			m := findSymbol(syms, tc.sym)
			if m == nil {
				t.Fatalf("Symbols: could not find symbol %v", tc.sym)
			}
			gotFrames, err := f.SourceLine(tc.addr)
			if err != nil {