llvm/test/ObjectYAML/MachO/sections.yaml

   1 ## This file contains test cases for generating sections in Mach-O object files.
   2
   3 ## a) Test that yaml2obj emits sections and obj2yaml converts them back.
   4
   5 # RUN: yaml2obj --docnum=1 %s | obj2yaml | FileCheck %s
   6
   7 --- !mach-o
   8 FileHeader:
   9   magic:           0xFEEDFACF
  10   cputype:         0x01000007
  11   cpusubtype:      0x80000003
  12   filetype:        0x00000002
  13   ncmds:           16
  14   sizeofcmds:      1408
  15   flags:           0x00218085
  16   reserved:        0x00000000
  17 LoadCommands:
  18   - cmd:             LC_SEGMENT_64
  19     cmdsize:         72
  20     segname:         __PAGEZERO
  21     vmaddr:          0
  22     vmsize:          4294967296
  23     fileoff:         0
  24     filesize:        0
  25     maxprot:         0
  26     initprot:        0
  27     nsects:          0
  28     flags:           0
  29   - cmd:             LC_SEGMENT_64
  30     cmdsize:         552
  31     segname:         __TEXT
  32     vmaddr:          4294967296
  33     vmsize:          8192
  34     fileoff:         0
  35     filesize:        8192
  36     maxprot:         7
  37     initprot:        5
  38     nsects:          6
  39     flags:           0
  40     Sections:
  41       - sectname:        __text
  42         segname:         __TEXT
  43         addr:            0x0000000100001160
  44         size:            3099
  45         offset:          0x00001160
  46         align:           4
  47         reloff:          0x00000000
  48         nreloc:          0
  49         flags:           0x80000400
  50         reserved1:       0x00000000
  51         reserved2:       0x00000000
  52         reserved3:       0x00000000
  53       - sectname:        __stubs
  54         segname:         __TEXT
  55         addr:            0x0000000100001D7C
  56         size:            90
  57         offset:          0x00001D7C
  58         align:           1
  59         reloff:          0x00000000
  60         nreloc:          0
  61         flags:           0x80000408
  62         reserved1:       0x00000000
  63         reserved2:       0x00000006
  64         reserved3:       0x00000000
  65       - sectname:        __stub_helper
  66         segname:         __TEXT
  67         addr:            0x0000000100001DD8
  68         size:            166
  69         offset:          0x00001DD8
  70         align:           2
  71         reloff:          0x00000000
  72         nreloc:          0
  73         flags:           0x80000400
  74         reserved1:       0x00000000
  75         reserved2:       0x00000000
  76         reserved3:       0x00000000
  77       - sectname:        __gcc_except_tab
  78         segname:         __TEXT
  79         addr:            0x0000000100001E80
  80         size:            240
  81         offset:          0x00001E80
  82         align:           2
  83         reloff:          0x00000000
  84         nreloc:          0
  85         flags:           0x00000000
  86         reserved1:       0x00000000
  87         reserved2:       0x00000000
  88         reserved3:       0x00000000
  89       - sectname:        __cstring
  90         segname:         __TEXT
  91         addr:            0x0000000100001F70
  92         size:            15
  93         offset:          0x00001F70
  94         align:           0
  95         reloff:          0x00000000
  96         nreloc:          0
  97         flags:           0x00000002
  98         reserved1:       0x00000000
  99         reserved2:       0x00000000
 100         reserved3:       0x00000000
 101       - sectname:        __unwind_info
 102         segname:         __TEXT
 103         addr:            0x0000000100001F80
 104         size:            120
 105         offset:          0x00001F80
 106         align:           2
 107         reloff:          0x00000000
 108         nreloc:          0
 109         flags:           0x00000000
 110         reserved1:       0x00000000
 111         reserved2:       0x00000000
 112         reserved3:       0x00000000
 113   - cmd:             LC_SEGMENT_64
 114     cmdsize:         312
 115     segname:         __DATA
 116     vmaddr:          4294975488
 117     vmsize:          4096
 118     fileoff:         8192
 119     filesize:        4096
 120     maxprot:         7
 121     initprot:        3
 122     nsects:          3
 123     flags:           0
 124     Sections:
 125       - sectname:        __got
 126         segname:         __DATA
 127         addr:            0x0000000100002000
 128         size:            24
 129         offset:          0x00002000
 130         align:           3
 131         reloff:          0x00000000
 132         nreloc:          0
 133         flags:           0x00000006
 134         reserved1:       0x0000000F
 135         reserved2:       0x00000000
 136         reserved3:       0x00000000
 137       - sectname:        __nl_symbol_ptr
 138         segname:         __DATA
 139         addr:            0x0000000100002018
 140         size:            16
 141         offset:          0x00002018
 142         align:           3
 143         reloff:          0x00000000
 144         nreloc:          0
 145         flags:           0x00000006
 146         reserved1:       0x00000012
 147         reserved2:       0x00000000
 148         reserved3:       0x00000000
 149       - sectname:        __la_symbol_ptr
 150         segname:         __DATA
 151         addr:            0x0000000100002028
 152         size:            120
 153         offset:          0x00002028
 154         align:           3
 155         reloff:          0x00000000
 156         nreloc:          0
 157         flags:           0x00000007
 158         reserved1:       0x00000014
 159         reserved2:       0x00000000
 160         reserved3:       0x00000000
 161   - cmd:             LC_SEGMENT_64
 162     cmdsize:         72
 163     segname:         __LINKEDIT
 164     vmaddr:          4294979584
 165     vmsize:          4096
 166     fileoff:         12288
 167     filesize:        2508
 168     maxprot:         7
 169     initprot:        1
 170     nsects:          0
 171     flags:           0
 172   - cmd:             LC_DYLD_INFO_ONLY
 173     cmdsize:         48
 174     rebase_off:      12288
 175     rebase_size:     8
 176     bind_off:        12296
 177     bind_size:       96
 178     weak_bind_off:   0
 179     weak_bind_size:  0
 180     lazy_bind_off:   12392
 181     lazy_bind_size:  624
 182     export_off:      13016
 183     export_size:     48
 184   - cmd:             LC_SYMTAB
 185     cmdsize:         24
 186     symoff:          13080
 187     nsyms:           30
 188     stroff:          13700
 189     strsize:         1096
 190   - cmd:             LC_DYSYMTAB
 191     cmdsize:         80
 192     ilocalsym:       0
 193     nlocalsym:       9
 194     iextdefsym:      9
 195     nextdefsym:      2
 196     iundefsym:       11
 197     nundefsym:       19
 198     tocoff:          0
 199     ntoc:            0
 200     modtaboff:       0
 201     nmodtab:         0
 202     extrefsymoff:    0
 203     nextrefsyms:     0
 204     indirectsymoff:  13560
 205     nindirectsyms:   35
 206     extreloff:       0
 207     nextrel:         0
 208     locreloff:       0
 209     nlocrel:         0
 210   - cmd:             LC_LOAD_DYLINKER
 211     cmdsize:         32
 212     name:            12
 213   - cmd:             LC_UUID
 214     cmdsize:         24
 215     uuid:            461A1B28-822F-3F38-B670-645419E636F5
 216   - cmd:             LC_VERSION_MIN_MACOSX
 217     cmdsize:         16
 218     version:         658176
 219     sdk:             658176
 220   - cmd:             LC_SOURCE_VERSION
 221     cmdsize:         16
 222     version:         0
 223   - cmd:             LC_MAIN
 224     cmdsize:         24
 225     entryoff:        4448
 226     stacksize:       0
 227   - cmd:             LC_LOAD_DYLIB
 228     cmdsize:         48
 229     dylib:
 230       name:            24
 231       timestamp:       2
 232       current_version: 7864576
 233       compatibility_version: 65536
 234   - cmd:             LC_LOAD_DYLIB
 235     cmdsize:         56
 236     dylib:
 237       name:            24
 238       timestamp:       2
 239       current_version: 80349697
 240       compatibility_version: 65536
 241   - cmd:             LC_FUNCTION_STARTS
 242     cmdsize:         16
 243     dataoff:         13064
 244     datasize:        16
 245   - cmd:             LC_DATA_IN_CODE
 246     cmdsize:         16
 247     dataoff:         13080
 248     datasize:        0
 249 ...
 250
 251
 252 #CHECK:   - cmd:             LC_SEGMENT_64
 253 #CHECK:     segname:         __PAGEZERO
 254 #CHECK:   - cmd:             LC_SEGMENT_64
 255 #CHECK:     segname:         __TEXT
 256 #CHECK:     Sections:
 257 #CHECK:       - sectname:        __text
 258 #CHECK:         segname:         __TEXT
 259 #CHECK:         addr:            0x100001160
 260 #CHECK:         size:            3099
 261 #CHECK:         offset:          0x1160
 262 #CHECK:         align:           4
 263 #CHECK:         reloff:          0x0
 264 #CHECK:         nreloc:          0
 265 #CHECK:         flags:           0x80000400
 266 #CHECK:         reserved1:       0x0
 267 #CHECK:         reserved2:       0x0
 268 #CHECK:         reserved3:       0x0
 269 #CHECK:       - sectname:        __stubs
 270 #CHECK:         segname:         __TEXT
 271 #CHECK:       - sectname:        __stub_helper
 272 #CHECK:         segname:         __TEXT
 273 #CHECK:       - sectname:        __gcc_except_tab
 274 #CHECK:         segname:         __TEXT
 275 #CHECK:       - sectname:        __cstring
 276 #CHECK:         segname:         __TEXT
 277 #CHECK:       - sectname:        __unwind_info
 278 #CHECK:         segname:         __TEXT
 279 #CHECK:   - cmd:             LC_SEGMENT_64
 280 #CHECK:     segname:         __DATA
 281 #CHECK:     Sections:
 282 #CHECK:       - sectname:        __got
 283 #CHECK:         segname:         __DATA
 284 #CHECK:       - sectname:        __nl_symbol_ptr
 285 #CHECK:         segname:         __DATA
 286 #CHECK:       - sectname:        __la_symbol_ptr
 287 #CHECK:         segname:         __DATA
 288
 289 ## b) Test that yaml2obj emits an error message if we specify an offset that
 290 ## makes the current section and the previous one overlap.
 291
 292 # RUN: not yaml2obj --docnum=2 %s -o %t2.macho 2>&1 | FileCheck %s --check-prefix=OVERLAP
 293
 294 # OVERLAP: yaml2obj: error: wrote too much data somewhere, section offsets in section __sec2 for segment __SEC don't line up: [cursor=0x121], [fileStart=0x0], [sectionOffset=0x1]
 295
 296 --- !mach-o
 297 FileHeader:
 298   magic:      0xFEEDFACF
 299   cputype:    0x01000007
 300   cpusubtype: 0x80000003
 301   filetype:   0x00000002
 302   ncmds:      1
 303   sizeofcmds: 1024
 304   flags:      0x00000000
 305   reserved:   0x00000000
 306 LoadCommands:
 307   - cmd:      LC_SEGMENT_64
 308     cmdsize:  0xff
 309     segname:  __SEC
 310     vmaddr:   0
 311     vmsize:   0
 312     fileoff:  0
 313     filesize: 0
 314     maxprot:  0
 315     initprot: 0
 316     nsects:   2
 317     flags:    0
 318     Sections:
 319       - sectname:  __sec1
 320         segname:   __SEC
 321         addr:      0x0000000000000000
 322         size:      2
 323         offset:    0x00000000
 324         align:     0
 325         reloff:    0x00000000
 326         nreloc:    0
 327         flags:     0x00000000
 328         reserved1: 0x00000000
 329         reserved2: 0x00000000
 330         reserved3: 0x00000000
 331       - sectname:  __sec2
 332         segname:   __SEC
 333         addr:      0x0000000000000000
 334         size:      2
 335         offset:    0x00000001 ## Specify an offset that makes __sec1 and __sec2 overlap.
 336         align:     1
 337         reloff:    0x00000000
 338         nreloc:    0
 339         flags:     0x00000000
 340         reserved1: 0x00000000
 341         reserved2: 0x00000000
 342         reserved3: 0x00000000