1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
# This file was produced using:
# echo "int ext;" > a.c
# xcrun --sdk iphoneos clang -target arm64-apple-ios15.1 -o a.o a.c -c
# xcrun --sdk iphoneos clang -target arm64-apple-ios15.1 -dynamiclib a.o -o liba.dylib -install_name @executable_path/liba.dylib
# echo "extern int ext;" > b.c
# echo "int padding;" >> b.c
# echo "int *p = &ext + 4;" >> b.c
# xcrun --sdk iphoneos clang -target arm64-apple-ios15.1 -o b.o b.c -c
# xcrun --sdk iphoneos clang -target arm64-apple-ios15.1 -dynamiclib b.o -o libfixups.dylib -install_name @executable_path/libfixups.dylib -L. -la
--- !mach-o
FileHeader:
magic: 0xFEEDFACF
cputype: 0x100000C
cpusubtype: 0x0
filetype: 0x6
ncmds: 16
sizeofcmds: 816
flags: 0x100085
reserved: 0x0
LoadCommands:
- cmd: LC_SEGMENT_64
cmdsize: 152
segname: __TEXT
vmaddr: 0
vmsize: 16384
fileoff: 0
filesize: 16384
maxprot: 5
initprot: 5
nsects: 1
flags: 0
Sections:
- sectname: __text
segname: __TEXT
addr: 0x4000
size: 0
offset: 0x4000
align: 0
reloff: 0x0
nreloc: 0
flags: 0x80000400
reserved1: 0x0
reserved2: 0x0
reserved3: 0x0
content: ''
- cmd: LC_SEGMENT_64
cmdsize: 152
segname: __DATA
vmaddr: 16384
vmsize: 16384
fileoff: 16384
filesize: 16384
maxprot: 3
initprot: 3
nsects: 1
flags: 0
Sections:
- sectname: __data
segname: __DATA
addr: 0x4000
size: 8
offset: 0x4000
align: 3
reloff: 0x0
nreloc: 0
flags: 0x0
reserved1: 0x0
reserved2: 0x0
reserved3: 0x0
content: '0000001000000080'
- cmd: LC_SEGMENT_64
cmdsize: 72
segname: __LINKEDIT
vmaddr: 32768
vmsize: 16384
fileoff: 32768
filesize: 160
maxprot: 1
initprot: 1
nsects: 0
flags: 0
- cmd: LC_ID_DYLIB
cmdsize: 64
dylib:
name: 24
timestamp: 1
current_version: 0
compatibility_version: 0
Content: '@executable_path/libfixups.dylib'
ZeroPadBytes: 8
- cmd: LC_DYLD_CHAINED_FIXUPS
cmdsize: 16
dataoff: 32768
datasize: 88
- cmd: LC_DYLD_EXPORTS_TRIE
cmdsize: 16
dataoff: 32856
datasize: 16
- cmd: LC_SYMTAB
cmdsize: 24
symoff: 32880
nsyms: 2
stroff: 32912
strsize: 16
- cmd: LC_DYSYMTAB
cmdsize: 80
ilocalsym: 0
nlocalsym: 0
iextdefsym: 0
nextdefsym: 1
iundefsym: 1
nundefsym: 1
tocoff: 0
ntoc: 0
modtaboff: 0
nmodtab: 0
extrefsymoff: 0
nextrefsyms: 0
indirectsymoff: 0
nindirectsyms: 0
extreloff: 0
nextrel: 0
locreloff: 0
nlocrel: 0
- cmd: LC_UUID
cmdsize: 24
uuid: 56F7BCE0-C1A7-38E3-A90D-742D8E3D5FA9
- cmd: LC_BUILD_VERSION
cmdsize: 32
platform: 2
minos: 983296
sdk: 983552
ntools: 1
Tools:
- tool: 3
version: 46596096
- cmd: LC_SOURCE_VERSION
cmdsize: 16
version: 0
- cmd: LC_ENCRYPTION_INFO_64
cmdsize: 24
cryptoff: 16384
cryptsize: 0
cryptid: 0
pad: 0
- cmd: LC_LOAD_DYLIB
cmdsize: 56
dylib:
name: 24
timestamp: 2
current_version: 0
compatibility_version: 0
Content: '@executable_path/liba.dylib'
ZeroPadBytes: 5
- cmd: LC_LOAD_DYLIB
cmdsize: 56
dylib:
name: 24
timestamp: 2
current_version: 85917696
compatibility_version: 65536
Content: '/usr/lib/libSystem.B.dylib'
ZeroPadBytes: 6
- cmd: LC_FUNCTION_STARTS
cmdsize: 16
dataoff: 32872
datasize: 8
- cmd: LC_DATA_IN_CODE
cmdsize: 16
dataoff: 32880
datasize: 0
__LINKEDIT: 0000000020000000480000004C000000010000000100000000000000000000000300000000000000100000000000000018000000004006000040000000000000000000000100000001020000005F6578740000000000000000015F700006040080800100000000000000000000000000020000000F02000000400000000000000500000001000001000000000000000020005F70005F65787400000000000000
...
|
