1
2
3
4
5 package macho
6
7 import (
8 "reflect"
9 "testing"
10 )
11
12 type fileTest struct {
13 file string
14 hdr FileHeader
15 segments []*SegmentHeader
16 sections []*SectionHeader
17 }
18
19 var fileTests = []fileTest{
20 {
21 "testdata/gcc-386-darwin-exec",
22 FileHeader{0xfeedface, Cpu386, 0x3, 0x2, 0xc, 0x3c0, 0x85},
23 []*SegmentHeader{
24 &SegmentHeader{LoadCmdSegment, 0x38, "__PAGEZERO", 0x0, 0x1000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
25 &SegmentHeader{LoadCmdSegment, 0xc0, "__TEXT", 0x1000, 0x1000, 0x0, 0x1000, 0x7, 0x5, 0x2, 0x0},
26 &SegmentHeader{LoadCmdSegment, 0xc0, "__DATA", 0x2000, 0x1000, 0x1000, 0x1000, 0x7, 0x3, 0x2, 0x0},
27 &SegmentHeader{LoadCmdSegment, 0x7c, "__IMPORT", 0x3000, 0x1000, 0x2000, 0x1000, 0x7, 0x7, 0x1, 0x0},
28 &SegmentHeader{LoadCmdSegment, 0x38, "__LINKEDIT", 0x4000, 0x1000, 0x3000, 0x12c, 0x7, 0x1, 0x0, 0x0},
29 nil,
30 nil,
31 nil,
32 nil,
33 nil,
34 nil,
35 nil,
36 },
37 []*SectionHeader{
38 &SectionHeader{"__text", "__TEXT", 0x1f68, 0x88, 0xf68, 0x2, 0x0, 0x0, 0x80000400},
39 &SectionHeader{"__cstring", "__TEXT", 0x1ff0, 0xd, 0xff0, 0x0, 0x0, 0x0, 0x2},
40 &SectionHeader{"__data", "__DATA", 0x2000, 0x14, 0x1000, 0x2, 0x0, 0x0, 0x0},
41 &SectionHeader{"__dyld", "__DATA", 0x2014, 0x1c, 0x1014, 0x2, 0x0, 0x0, 0x0},
42 &SectionHeader{"__jump_table", "__IMPORT", 0x3000, 0xa, 0x2000, 0x6, 0x0, 0x0, 0x4000008},
43 },
44 },
45 {
46 "testdata/gcc-amd64-darwin-exec",
47 FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0x2, 0xb, 0x568, 0x85},
48 []*SegmentHeader{
49 &SegmentHeader{LoadCmdSegment64, 0x48, "__PAGEZERO", 0x0, 0x100000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
50 &SegmentHeader{LoadCmdSegment64, 0x1d8, "__TEXT", 0x100000000, 0x1000, 0x0, 0x1000, 0x7, 0x5, 0x5, 0x0},
51 &SegmentHeader{LoadCmdSegment64, 0x138, "__DATA", 0x100001000, 0x1000, 0x1000, 0x1000, 0x7, 0x3, 0x3, 0x0},
52 &SegmentHeader{LoadCmdSegment64, 0x48, "__LINKEDIT", 0x100002000, 0x1000, 0x2000, 0x140, 0x7, 0x1, 0x0, 0x0},
53 nil,
54 nil,
55 nil,
56 nil,
57 nil,
58 nil,
59 nil,
60 },
61 []*SectionHeader{
62 &SectionHeader{"__text", "__TEXT", 0x100000f14, 0x6d, 0xf14, 0x2, 0x0, 0x0, 0x80000400},
63 &SectionHeader{"__symbol_stub1", "__TEXT", 0x100000f81, 0xc, 0xf81, 0x0, 0x0, 0x0, 0x80000408},
64 &SectionHeader{"__stub_helper", "__TEXT", 0x100000f90, 0x18, 0xf90, 0x2, 0x0, 0x0, 0x0},
65 &SectionHeader{"__cstring", "__TEXT", 0x100000fa8, 0xd, 0xfa8, 0x0, 0x0, 0x0, 0x2},
66 &SectionHeader{"__eh_frame", "__TEXT", 0x100000fb8, 0x48, 0xfb8, 0x3, 0x0, 0x0, 0x6000000b},
67 &SectionHeader{"__data", "__DATA", 0x100001000, 0x1c, 0x1000, 0x3, 0x0, 0x0, 0x0},
68 &SectionHeader{"__dyld", "__DATA", 0x100001020, 0x38, 0x1020, 0x3, 0x0, 0x0, 0x0},
69 &SectionHeader{"__la_symbol_ptr", "__DATA", 0x100001058, 0x10, 0x1058, 0x2, 0x0, 0x0, 0x7},
70 },
71 },
72 {
73 "testdata/gcc-amd64-darwin-exec-debug",
74 FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0xa, 0x4, 0x5a0, 0},
75 []*SegmentHeader{
76 nil,
77 &SegmentHeader{LoadCmdSegment64, 0x1d8, "__TEXT", 0x100000000, 0x1000, 0x0, 0x0, 0x7, 0x5, 0x5, 0x0},
78 &SegmentHeader{LoadCmdSegment64, 0x138, "__DATA", 0x100001000, 0x1000, 0x0, 0x0, 0x7, 0x3, 0x3, 0x0},
79 &SegmentHeader{LoadCmdSegment64, 0x278, "__DWARF", 0x100002000, 0x1000, 0x1000, 0x1bc, 0x7, 0x3, 0x7, 0x0},
80 },
81 []*SectionHeader{
82 &SectionHeader{"__text", "__TEXT", 0x100000f14, 0x0, 0x0, 0x2, 0x0, 0x0, 0x80000400},
83 &SectionHeader{"__symbol_stub1", "__TEXT", 0x100000f81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000408},
84 &SectionHeader{"__stub_helper", "__TEXT", 0x100000f90, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0},
85 &SectionHeader{"__cstring", "__TEXT", 0x100000fa8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2},
86 &SectionHeader{"__eh_frame", "__TEXT", 0x100000fb8, 0x0, 0x0, 0x3, 0x0, 0x0, 0x6000000b},
87 &SectionHeader{"__data", "__DATA", 0x100001000, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0},
88 &SectionHeader{"__dyld", "__DATA", 0x100001020, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0},
89 &SectionHeader{"__la_symbol_ptr", "__DATA", 0x100001058, 0x0, 0x0, 0x2, 0x0, 0x0, 0x7},
90 &SectionHeader{"__debug_abbrev", "__DWARF", 0x100002000, 0x36, 0x1000, 0x0, 0x0, 0x0, 0x0},
91 &SectionHeader{"__debug_aranges", "__DWARF", 0x100002036, 0x30, 0x1036, 0x0, 0x0, 0x0, 0x0},
92 &SectionHeader{"__debug_frame", "__DWARF", 0x100002066, 0x40, 0x1066, 0x0, 0x0, 0x0, 0x0},
93 &SectionHeader{"__debug_info", "__DWARF", 0x1000020a6, 0x54, 0x10a6, 0x0, 0x0, 0x0, 0x0},
94 &SectionHeader{"__debug_line", "__DWARF", 0x1000020fa, 0x47, 0x10fa, 0x0, 0x0, 0x0, 0x0},
95 &SectionHeader{"__debug_pubnames", "__DWARF", 0x100002141, 0x1b, 0x1141, 0x0, 0x0, 0x0, 0x0},
96 &SectionHeader{"__debug_str", "__DWARF", 0x10000215c, 0x60, 0x115c, 0x0, 0x0, 0x0, 0x0},
97 },
98 },
99 }
100
101 func TestOpen(t *testing.T) {
102 for i := range fileTests {
103 tt := &fileTests[i]
104
105 f, err := Open(tt.file)
106 if err != nil {
107 t.Error(err)
108 continue
109 }
110 if !reflect.DeepEqual(f.FileHeader, tt.hdr) {
111 t.Errorf("open %s:\n\thave %#v\n\twant %#v\n", tt.file, f.FileHeader, tt.hdr)
112 continue
113 }
114 for i, l := range f.Loads {
115 if i >= len(tt.segments) {
116 break
117 }
118 sh := tt.segments[i]
119 s, ok := l.(*Segment)
120 if sh == nil {
121 if ok {
122 t.Errorf("open %s, section %d: skipping %#v\n", tt.file, i, &s.SegmentHeader)
123 }
124 continue
125 }
126 if !ok {
127 t.Errorf("open %s, section %d: not *Segment\n", tt.file, i)
128 continue
129 }
130 have := &s.SegmentHeader
131 want := sh
132 if !reflect.DeepEqual(have, want) {
133 t.Errorf("open %s, segment %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want)
134 }
135 }
136 tn := len(tt.segments)
137 fn := len(f.Loads)
138 if tn != fn {
139 t.Errorf("open %s: len(Loads) = %d, want %d", tt.file, fn, tn)
140 }
141
142 for i, sh := range f.Sections {
143 if i >= len(tt.sections) {
144 break
145 }
146 have := &sh.SectionHeader
147 want := tt.sections[i]
148 if !reflect.DeepEqual(have, want) {
149 t.Errorf("open %s, section %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want)
150 }
151 }
152 tn = len(tt.sections)
153 fn = len(f.Sections)
154 if tn != fn {
155 t.Errorf("open %s: len(Sections) = %d, want %d", tt.file, fn, tn)
156 }
157
158 }
159 }
160
161 func TestOpenFailure(t *testing.T) {
162 filename := "file.go"
163 _, err := Open(filename)
164 if err == nil {
165 t.Errorf("open %s: succeeded unexpectedly", filename)
166 }
167 }