lld/test/MachO/compact-unwind-sym-relocs.s

   1 # REQUIRES: x86
   2
   3 ## Test that we correctly handle symbol relocations in the compact unwind
   4 ## section.
   5
   6 ## llvm-mc does not emit such relocations for compact unwind, but `ld -r` does.
   7 ## As such, these yaml files were from an object file produced with 'ld -r',
   8 ## specifically:
   9 ##
  10 ##  // foo.s
  11 ## .globl _foo
  12 ## .text
  13 ## .p2align 2
  14 ## _foo:
  15 ##   .cfi_startproc
  16 ##   .cfi_personality 155, ___gxx_personality_v0
  17 ##   .cfi_lsda 16, _exception0
  18 ##   .cfi_def_cfa_offset 16
  19 ##   ret
  20 ##   .cfi_endproc
  21 ##
  22 ## .section __TEXT,__gcc_except_tab
  23 ## _exception0:
  24 ##   .space 0
  25 ##
  26 ## llvm-mc -filetype=obj -triple=x86_64-apple-macos10.15 -o foo1.o foo.s
  27 ## ld -r -o foo.o foo1.o
  28
  29 # RUN: rm -rf %t; mkdir -p %t
  30 # RUN: yaml2obj %s -o %t/foo.o
  31 # RUN: %lld -dylib -lc++ %t/foo.o -o %t/foo
  32 # RUN: llvm-objdump --macho --syms --unwind-info %t/foo | FileCheck %s
  33
  34 # CHECK:      SYMBOL TABLE:
  35 # CHECK-DAG:  [[#%x,FOO:]]         g     F __TEXT,__text _foo
  36 # CHECK-DAG:  [[#%x,EXCEPT0:]]     l     O __TEXT,__gcc_except_tab _exception0
  37
  38 # CHECK:      LSDA descriptors:
  39 # CHECK-NEXT: [0]: function offset=0x[[#%.8x,FOO]], LSDA offset=0x[[#%.8x,EXCEPT0]]
  40
  41 --- !mach-o
  42 FileHeader:
  43   magic:           0xFEEDFACF
  44   cputype:         0x1000007
  45   cpusubtype:      0x3
  46   filetype:        0x1
  47   ncmds:           2
  48   sizeofcmds:      464
  49   flags:           0x0
  50   reserved:        0x0
  51 LoadCommands:
  52   - cmd:             LC_SEGMENT_64
  53     cmdsize:         392
  54     segname:         ''
  55     vmaddr:          0
  56     vmsize:          112
  57     fileoff:         528
  58     filesize:        112
  59     maxprot:         7
  60     initprot:        7
  61     nsects:          4
  62     flags:           0
  63     Sections:
  64       - sectname:        __text
  65         segname:         __TEXT
  66         addr:            0x0
  67         size:            1
  68         offset:          0x210
  69         align:           2
  70         reloff:          0x0
  71         nreloc:          0
  72         flags:           0x80000400
  73         reserved1:       0x0
  74         reserved2:       0x0
  75         reserved3:       0x0
  76         content:         C3
  77       - sectname:        __gcc_except_tab
  78         segname:         __TEXT
  79         addr:            0x1
  80         size:            0
  81         offset:          0x211
  82         align:           0
  83         reloff:          0x0
  84         nreloc:          0
  85         flags:           0x0
  86         reserved1:       0x0
  87         reserved2:       0x0
  88         reserved3:       0x0
  89         content:         ''
  90       - sectname:        __eh_frame
  91         segname:         __TEXT
  92         addr:            0x8
  93         size:            72
  94         offset:          0x218
  95         align:           3
  96         reloff:          0x280
  97         nreloc:          7
  98         flags:           0x0
  99         reserved1:       0x0
 100         reserved2:       0x0
 101         reserved3:       0x0
 102         content:         1C00000000000000017A504C5200017810079B0400000010100C0708900100002400000004000000F8FFFFFFFFFFFFFF010000000000000008E7FFFFFFFFFFFFFF0E100000000000
 103         relocations:
 104           - address:         0x13
 105             symbolnum:       4
 106             pcrel:           true
 107             length:          2
 108             extern:          true
 109             type:            4
 110             scattered:       false
 111             value:           0
 112           - address:         0x24
 113             symbolnum:       1
 114             pcrel:           false
 115             length:          2
 116             extern:          true
 117             type:            5
 118             scattered:       false
 119             value:           0
 120           - address:         0x24
 121             symbolnum:       2
 122             pcrel:           false
 123             length:          2
 124             extern:          true
 125             type:            0
 126             scattered:       false
 127             value:           0
 128           - address:         0x28
 129             symbolnum:       2
 130             pcrel:           false
 131             length:          3
 132             extern:          true
 133             type:            5
 134             scattered:       false
 135             value:           0
 136           - address:         0x28
 137             symbolnum:       3
 138             pcrel:           false
 139             length:          3
 140             extern:          true
 141             type:            0
 142             scattered:       false
 143             value:           0
 144           - address:         0x39
 145             symbolnum:       2
 146             pcrel:           false
 147             length:          3
 148             extern:          true
 149             type:            5
 150             scattered:       false
 151             value:           0
 152           - address:         0x39
 153             symbolnum:       0
 154             pcrel:           false
 155             length:          3
 156             extern:          true
 157             type:            0
 158             scattered:       false
 159             value:           0
 160       - sectname:        __compact_unwind
 161         segname:         __LD
 162         addr:            0x50
 163         size:            32
 164         offset:          0x260
 165         align:           3
 166         reloff:          0x2B8
 167         nreloc:          4
 168         flags:           0x2000000
 169         reserved1:       0x0
 170         reserved2:       0x0
 171         reserved3:       0x0
 172         content:         '0000000000000000010000000000024200000000000000000000000000000000'
 173         relocations:
 174           - address:         0x0
 175             symbolnum:       3
 176             pcrel:           false
 177             length:          3
 178             extern:          true
 179             type:            0
 180             scattered:       false
 181             value:           0
 182           - address:         0x18
 183             symbolnum:       0
 184             pcrel:           false
 185             length:          3
 186             extern:          true
 187             type:            0
 188             scattered:       false
 189             value:           0
 190           - address:         0x10
 191             symbolnum:       4
 192             pcrel:           false
 193             length:          3
 194             extern:          true
 195             type:            0
 196             scattered:       false
 197             value:           0
 198           - address:         0x18
 199             symbolnum:       0
 200             pcrel:           false
 201             length:          3
 202             extern:          true
 203             type:            0
 204             scattered:       false
 205             value:           0
 206   - cmd:             LC_SYMTAB
 207     cmdsize:         24
 208     symoff:          728
 209     nsyms:           5
 210     stroff:          808
 211     strsize:         57
 212 LinkEditData:
 213   NameList:
 214     - n_strx:          29
 215       n_type:          0xE
 216       n_sect:          2
 217       n_desc:          32
 218       n_value:         1
 219     - n_strx:          41
 220       n_type:          0xE
 221       n_sect:          3
 222       n_desc:          0
 223       n_value:         8
 224     - n_strx:          51
 225       n_type:          0xE
 226       n_sect:          3
 227       n_desc:          0
 228       n_value:         40
 229     - n_strx:          2
 230       n_type:          0xF
 231       n_sect:          1
 232       n_desc:          32
 233       n_value:         0
 234     - n_strx:          7
 235       n_type:          0x1
 236       n_sect:          0
 237       n_desc:          0
 238       n_value:         0
 239   StringTable:
 240     - ' '
 241     - _foo
 242     - ___gxx_personality_v0
 243     - _exception0
 244     - EH_Frame1
 245     - func.eh
 246 ...