test/DebugInfo/X86/dwarfdump-str-offsets-dwp.s

   1 # RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
   2 # RUN: llvm-dwarfdump -v %t.o | FileCheck %s
   3
   4 # Test object to verify that dwarfdump handles dwp files with DWARF v5 string
   5 # offset tables. We have 3 CUs and 2 TUs, where it is assumed that
   6 # CU1 and TU1 came from one object file, CU2 and TU2 from a second object
   7 # file, and CU3 from a third object file that was compiled with
   8 # -gdwarf-4.
   9 #
  10         .section .debug_str.dwo,"MS",@progbits,1
  11 str_producer:
  12         .asciz "Handmade DWARF producer"
  13 str_CU1:
  14         .asciz "Compile_Unit_1"
  15 str_CU1_dir:
  16         .asciz "/home/test/CU1"
  17 str_CU2:
  18         .asciz "Compile_Unit_2"
  19 str_CU2_dir:
  20         .asciz "/home/test/CU2"
  21 str_TU1:
  22         .asciz "Type_Unit_1"
  23 str_TU1_type:
  24         .asciz "MyStruct_1"
  25 str_TU2:
  26         .asciz "Type_Unit_2"
  27 str_TU2_type:
  28         .asciz "MyStruct_2"
  29 str_CU3:
  30         .asciz "Compile_Unit_3"
  31 str_CU3_dir:
  32         .asciz "/home/test/CU3"
  33
  34         .section .debug_str_offsets.dwo,"",@progbits
  35 # Object files 1's portion of the .debug_str_offsets.dwo section.
  36 # CU1 and TU1 share a contribution to the string offsets table.
  37 .debug_str_offsets_object_file1_start:
  38         .long .debug_str_offsets_object_file1_end-.debug_str_offsets_base_1
  39         .short 5    # DWARF version
  40         .short 0    # Padding
  41 .debug_str_offsets_base_1:
  42         .long str_producer-.debug_str.dwo
  43         .long str_CU1-.debug_str.dwo
  44         .long str_CU1_dir-.debug_str.dwo
  45         .long str_TU1-.debug_str.dwo
  46         .long str_TU1_type-.debug_str.dwo
  47 .debug_str_offsets_object_file1_end:
  48
  49 # Object files 2's portion of the .debug_str_offsets.dwo section.
  50 # CU2 and TU2 share a contribution to the string offsets table.
  51 .debug_str_offsets_object_file2_start:
  52         .long .debug_str_offsets_object_file2_end-.debug_str_offsets_base_2
  53         .short 5    # DWARF version
  54         .short 0    # Padding
  55 .debug_str_offsets_base_2:
  56         .long str_producer-.debug_str.dwo
  57         .long str_CU2-.debug_str.dwo
  58         .long str_CU2_dir-.debug_str.dwo
  59         .long str_TU2-.debug_str.dwo
  60         .long str_TU2_type-.debug_str.dwo
  61 .debug_str_offsets_object_file2_end:
  62
  63 # Object files 3's portion of the .debug_str_offsets.dwo section.
  64 # This file is assumed to have been compiled with -gdwarf-4 and
  65 # therefore contains a version 4 CU and a GNU format contribution
  66 # to the .debug_str_offsets section.
  67 .debug_str_offsets_object_file3_start:
  68 .debug_str_offsets_base_3:
  69         .long str_producer-.debug_str.dwo
  70         .long str_CU3-.debug_str.dwo
  71         .long str_CU3_dir-.debug_str.dwo
  72 .debug_str_offsets_object_file3_end:
  73
  74 # Abbrevs are shared for all compile and type units
  75         .section .debug_abbrev.dwo,"",@progbits
  76         .byte 0x01  # Abbrev code
  77         .byte 0x11  # DW_TAG_compile_unit
  78         .byte 0x00  # DW_CHILDREN_no
  79         .byte 0x25  # DW_AT_producer
  80         .byte 0x1a  # DW_FORM_strx
  81         .byte 0x03  # DW_AT_name
  82         .byte 0x1a  # DW_FORM_strx
  83         .byte 0x03  # DW_AT_name
  84         .byte 0x1a  # DW_FORM_strx
  85         .byte 0x00  # EOM(1)
  86         .byte 0x00  # EOM(2)
  87         .byte 0x02  # Abbrev code
  88         .byte 0x41  # DW_TAG_type_unit
  89         .byte 0x01  # DW_CHILDREN_yes
  90         .byte 0x03  # DW_AT_name
  91         .byte 0x1a  # DW_FORM_strx
  92         .byte 0x00  # EOM(1)
  93         .byte 0x00  # EOM(2)
  94         .byte 0x03  # Abbrev code
  95         .byte 0x13  # DW_TAG_structure_type
  96         .byte 0x00  # DW_CHILDREN_no (no members)
  97         .byte 0x03  # DW_AT_name
  98         .byte 0x1a  # DW_FORM_strx
  99         .byte 0x00  # EOM(1)
 100         .byte 0x00  # EOM(2)
 101         .byte 0x04  # Abbrev code
 102         .byte 0x11  # DW_TAG_compile_unit
 103         .byte 0x00  # DW_CHILDREN_no
 104         .byte 0x25  # DW_AT_producer
 105         .short 0x3e82  # DW_FORM_GNU_str_index
 106         .byte 0x03  # DW_AT_name
 107         .short 0x3e82  # DW_FORM_GNU_str_index
 108         .byte 0x03  # DW_AT_name
 109         .short 0x3e82  # DW_FORM_GNU_str_index
 110         .byte 0x00  # EOM(1)
 111         .byte 0x00  # EOM(2)
 112         .byte 0x00  # EOM(3)
 113 abbrev_end:
 114
 115         .section .debug_info.dwo,"",@progbits
 116
 117 # DWARF v5 CU header.
 118 CU1_5_start:
 119         .long  CU1_5_end-CU1_5_version  # Length of Unit
 120 CU1_5_version:
 121         .short 5               # DWARF version number
 122         .byte 1                # DWARF Unit Type
 123         .byte 8                # Address Size (in bytes)
 124         .long .debug_abbrev.dwo # Offset Into Abbrev. Section
 125 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name
 126 # and DW_AT_compdir.
 127         .byte 1                # Abbreviation code
 128         .byte 0                # The index of the producer string
 129         .byte 1                # The index of the CU name string
 130         .byte 2                # The index of the comp dir string
 131         .byte 0 # NULL
 132 CU1_5_end:
 133
 134 CU2_5_start:
 135         .long  CU2_5_end-CU2_5_version  # Length of Unit
 136 CU2_5_version:
 137         .short 5               # DWARF version number
 138         .byte 1                # DWARF Unit Type
 139         .byte 8                # Address Size (in bytes)
 140         .long .debug_abbrev.dwo # Offset Into Abbrev. Section
 141 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name
 142 # and DW_AT_compdir.
 143         .byte 1                # Abbreviation code
 144         .byte 0                # The index of the producer string
 145         .byte 1                # The index of the CU name string
 146         .byte 2                # The index of the comp dir string
 147         .byte 0 # NULL
 148 CU2_5_end:
 149
 150 CU3_4_start:
 151         .long  CU3_4_end-CU3_4_version  # Length of Unit
 152 CU3_4_version:
 153         .short 4               # DWARF version number
 154         .long .debug_abbrev.dwo # Offset Into Abbrev. Section
 155         .byte 8                # Address Size (in bytes)
 156 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name
 157 # and DW_AT_compdir.
 158         .byte 4                # Abbreviation code
 159         .byte 0                # The index of the producer string
 160         .byte 1                # The index of the CU name string
 161         .byte 2                # The index of the comp dir string
 162         .byte 0 # NULL
 163 CU3_4_end:
 164
 165         .section .debug_types.dwo,"",@progbits
 166 # DWARF v5 Type unit header.
 167 TU1_5_start:
 168         .long  TU1_5_end-TU1_5_version  # Length of Unit
 169 TU1_5_version:
 170         .short 5               # DWARF version number
 171         .byte 2                # DWARF Unit Type
 172         .byte 8                # Address Size (in bytes)
 173         .long .debug_abbrev.dwo    # Offset Into Abbrev. Section
 174         .quad 0x0011223344556677 # Type Signature
 175         .long TU1_5_type-TU1_5_start # Type offset
 176 # The type-unit DIE, which has a name.
 177         .byte 2                # Abbreviation code
 178         .byte 3                # Index of the unit type name string
 179 # The type DIE, which has a name.
 180 TU1_5_type:
 181         .byte 3                # Abbreviation code
 182         .byte 4                # Index of the type name string
 183         .byte 0 # NULL
 184         .byte 0 # NULL
 185 TU1_5_end:
 186
 187 TU2_5_start:
 188         .long  TU2_5_end-TU2_5_version  # Length of Unit
 189 TU2_5_version:
 190         .short 5               # DWARF version number
 191         .byte 2                # DWARF Unit Type
 192         .byte 8                # Address Size (in bytes)
 193         .long .debug_abbrev.dwo    # Offset Into Abbrev. Section
 194         .quad 0x00aabbccddeeff99 # Type Signature
 195         .long TU2_5_type-TU2_5_start # Type offset
 196 # The type-unit DIE, which has a name.
 197         .byte 2                # Abbreviation code
 198         .byte 3                # Index of the unit type name string
 199 # The type DIE, which has a name.
 200 TU2_5_type:
 201         .byte 3                # Abbreviation code
 202         .byte 4                # Index of the type name string
 203         .byte 0 # NULL
 204         .byte 0 # NULL
 205 TU2_5_end:
 206
 207         .section .debug_cu_index,"",@progbits
 208         # The index header
 209         .long 2                # Version
 210         .long 3                # Columns of contribution matrix
 211         .long 3                # number of units
 212         .long 3                # number of hash buckets in table
 213
 214         # The signatures for all CUs.
 215         .quad 0xddeeaaddbbaabbee # signature 1
 216         .quad 0xff00ffeeffaaff00 # signature 2
 217         .quad 0xf00df00df00df00d # signature 2
 218         # The indexes for both CUs.
 219         .long 1                # index 1
 220         .long 2                # index 2
 221         .long 3                # index 3
 222         # The sections to which all CUs contribute.
 223         .long 1                # DW_SECT_INFO
 224         .long 3                # DW_SECT_ABBREV
 225         .long 6                # DW_SECT_STR_OFFSETS
 226
 227         # The starting offsets of all CU's contributions to info,
 228         # abbrev and string offsets table.
 229         .long CU1_5_start-.debug_info.dwo
 230         .long 0
 231         .long .debug_str_offsets_object_file1_start-.debug_str_offsets.dwo
 232         .long CU2_5_start-.debug_info.dwo
 233         .long 0
 234         .long .debug_str_offsets_object_file2_start-.debug_str_offsets.dwo
 235         .long CU3_4_start-.debug_info.dwo
 236         .long 0
 237         .long .debug_str_offsets_object_file3_start-.debug_str_offsets.dwo
 238
 239         # The lengths of all CU's contributions to info, abbrev and
 240         # string offsets table.
 241         .long CU1_5_end-CU1_5_start
 242         .long abbrev_end-.debug_abbrev.dwo
 243         .long .debug_str_offsets_object_file1_end-.debug_str_offsets_object_file1_start
 244         .long CU2_5_end-CU2_5_start
 245         .long abbrev_end-.debug_abbrev.dwo
 246         .long .debug_str_offsets_object_file2_end-.debug_str_offsets_object_file2_start
 247         .long CU3_4_end-CU3_4_start
 248         .long abbrev_end-.debug_abbrev.dwo
 249         .long .debug_str_offsets_object_file3_end-.debug_str_offsets_object_file3_start
 250
 251         .section .debug_tu_index,"",@progbits
 252         # The index header
 253         .long 2                # Version
 254         .long 3                # Columns of contribution matrix
 255         .long 2                # number of units
 256         .long 2                # number of hash buckets in table
 257
 258         # The signatures for both TUs.
 259         .quad 0xeeaaddbbaabbeedd # signature 1
 260         .quad 0x00ffeeffaaff00ff # signature 2
 261         # The indexes for both TUs.
 262         .long 1                # index 1
 263         .long 2                # index 2
 264         # The sections to which both TUs contribute.
 265         .long 2                # DW_SECT_TYPES
 266         .long 3                # DW_SECT_ABBREV
 267         .long 6                # DW_SECT_STR_OFFSETS
 268
 269         # The starting offsets of both TU's contributions to info,
 270         # abbrev and string offsets table.
 271         .long TU1_5_start-.debug_types.dwo
 272         .long 0
 273         .long .debug_str_offsets_object_file1_start-.debug_str_offsets.dwo
 274         .long TU2_5_start-.debug_types.dwo
 275         .long 0
 276         .long .debug_str_offsets_object_file2_start-.debug_str_offsets.dwo
 277
 278         # The lengths of both TU's contributions to info, abbrev and
 279         # string offsets table.
 280         .long TU1_5_end-TU1_5_start
 281         .long abbrev_end-.debug_abbrev.dwo
 282         .long .debug_str_offsets_object_file1_end-.debug_str_offsets_object_file1_start
 283         .long TU2_5_end-TU2_5_start
 284         .long abbrev_end-.debug_abbrev.dwo
 285         .long .debug_str_offsets_object_file2_end-.debug_str_offsets_object_file2_start
 286
 287
 288 # Verify that the correct strings from each unit are displayed and that the
 289 # index for the .debug_str_offsets section has the right values.
 290
 291 # CHECK:      Compile Unit
 292 # CHECK-NOT:  NULL
 293 # CHECK:      DW_TAG_compile_unit
 294 # CHECK-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
 295 # CHECK-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_1")
 296 # CHECK-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU1")
 297 # CHECK-NOT:  NULL
 298
 299 # CHECK:      Compile Unit
 300 # CHECK-NOT:  NULL
 301 # CHECK:      DW_TAG_compile_unit
 302 # CHECK-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
 303 # CHECK-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_2")
 304 # CHECK-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU2")
 305 #
 306 # CHECK:      Type Unit
 307 # CHECK-NOT:  NULL
 308 # CHECK:      DW_TAG_type_unit
 309 # CHECK-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000003) string = "Type_Unit_1")
 310 # CHECK-NOT:  NULL
 311 # CHECK:      DW_TAG_structure_type
 312 # CHECK-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000004) string = "MyStruct_1")
 313 #
 314 # CHECK:      Type Unit
 315 # CHECK-NOT:  NULL
 316 # CHECK:      DW_TAG_type_unit
 317 # CHECK-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000003) string = "Type_Unit_2")
 318 # CHECK-NOT:  NULL
 319 # CHECK:      DW_TAG_structure_type
 320 # CHECK-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000004) string = "MyStruct_2")
 321
 322 # Verify the correct offets of the compile and type units contributions in the
 323 # index tables.
 324
 325 # CHECK:      .debug_cu_index contents:
 326 # CHECK-NOT:  contents:
 327 # CHECK:      1 0xddeeaaddbbaabbee [{{0x[0-9a-f]*, 0x[0-9a-f]*}}) [{{0x[0-9a-f]*, 0x[0-9a-f]*}})
 328 # CHECK-SAME: [0x00000000
 329 # CHECK-NEXT: 2 0xff00ffeeffaaff00 [{{0x[0-9a-f]*, 0x[0-9a-f]*}}) [{{0x[0-9a-f]*, 0x[0-9a-f]*}})
 330 # CHECK-SAME: [0x0000001c
 331
 332 # CHECK:      .debug_tu_index contents:
 333 # CHECK-NOT:  contents:
 334 # CHECK:      1 0xeeaaddbbaabbeedd [{{0x[0-9a-f]*, 0x[0-9a-f]*}}) [{{0x[0-9a-f]*, 0x[0-9a-f]*}})
 335 # CHECK-SAME: [0x00000000
 336 # CHECK-NEXT: 2 0x00ffeeffaaff00ff [{{0x[0-9a-f]*, 0x[0-9a-f]*}}) [{{0x[0-9a-f]*, 0x[0-9a-f]*}})
 337 # CHECK:      [0x0000001c