xref: /llvm-project/llvm/test/tools/llvm-objcopy/MachO/remove-section-error.test (revision f34fdbcf996a9b944439007b1da087be8284b803) 
1# RUN: yaml2obj %s -o %t
2# RUN: not llvm-objcopy --remove-section __DATA,C %t /dev/null 2>&1 | FileCheck %s
3
4# CHECK: symbol '_a' defined in section with index '2' cannot be removed because it is referenced by a relocation in section '__TEXT,__text'
5
6## The binary used in this test was built as follows:
7## main.c:
8##   __attribute__((section("__DATA,C"))) int a = 2;
9##   int f() { return a; }
10## build command:
11## clang -fno-exceptions -fno-unwind-tables -c main.c -o main.o
12
13--- !mach-o
14FileHeader:
15  magic:           0xFEEDFACF
16  cputype:         0x01000007
17  cpusubtype:      0x00000003
18  filetype:        0x00000001
19  ncmds:           4
20  sizeofcmds:      360
21  flags:           0x00002000
22  reserved:        0x00000000
23LoadCommands:
24  - cmd:             LC_SEGMENT_64
25    cmdsize:         232
26    segname:         ''
27    vmaddr:          0
28    vmsize:          16
29    fileoff:         392
30    filesize:        16
31    maxprot:         7
32    initprot:        7
33    nsects:          2
34    flags:           0
35    Sections:
36      - sectname:        __text
37        segname:         __TEXT
38        addr:            0x0000000000000000
39        size:            12
40        offset:          0x00000188
41        align:           4
42        reloff:          0x00000198
43        nreloc:          1
44        flags:           0x80000400
45        reserved1:       0x00000000
46        reserved2:       0x00000000
47        reserved3:       0x00000000
48        content:         554889E58B05000000005DC3
49        relocations:
50          - address:         0x00000006
51            symbolnum:       0
52            pcrel:           true
53            length:          2
54            extern:          true
55            type:            1
56            scattered:       false
57            value:           0
58      - sectname:        C
59        segname:         __DATA
60        addr:            0x000000000000000C
61        size:            4
62        offset:          0x00000194
63        align:           2
64        reloff:          0x00000000
65        nreloc:          0
66        flags:           0x00000000
67        reserved1:       0x00000000
68        reserved2:       0x00000000
69        reserved3:       0x00000000
70        content:         '02000000'
71  - cmd:             LC_BUILD_VERSION
72    cmdsize:         24
73    platform:        1
74    minos:           658944
75    sdk:             658944
76    ntools:          0
77  - cmd:             LC_SYMTAB
78    cmdsize:         24
79    symoff:          416
80    nsyms:           2
81    stroff:          448
82    strsize:         8
83  - cmd:             LC_DYSYMTAB
84    cmdsize:         80
85    ilocalsym:       0
86    nlocalsym:       0
87    iextdefsym:      0
88    nextdefsym:      2
89    iundefsym:       2
90    nundefsym:       0
91    tocoff:          0
92    ntoc:            0
93    modtaboff:       0
94    nmodtab:         0
95    extrefsymoff:    0
96    nextrefsyms:     0
97    indirectsymoff:  0
98    nindirectsyms:   0
99    extreloff:       0
100    nextrel:         0
101    locreloff:       0
102    nlocrel:         0
103LinkEditData:
104  NameList:
105    - n_strx:          4
106      n_type:          0x0F
107      n_sect:          2
108      n_desc:          0
109      n_value:         12
110    - n_strx:          1
111      n_type:          0x0F
112      n_sect:          1
113      n_desc:          0
114      n_value:         0
115  StringTable:
116    - ''
117    - _f
118    - _a
119    - ''
120...
121