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

   1 # RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
   2 # RUN: llvm-dwarfdump -v %t.o 2> %t.err | FileCheck --check-prefixes=COMMON,SPLIT,OFFSETS %s
   3 # RUN: llvm-dwarfdump -verify %t.o | FileCheck --check-prefix=VERIFY %s
   4 # RUN: llvm-dwarfdump -debug-str-offsets %t.o | FileCheck --check-prefix=OFFSETS %s
   5 #
   6 # Check that we don't report an error on a non-existent range list table.
   7 # RUN: FileCheck -allow-empty --check-prefix ERR %s < %t.err
   8
   9 # Test object to verify dwarfdump handles v5 string offset tables.
  10 # We have 2 v5 CUs, a v5 TU, and a split v5 CU and TU.
  11 #
  12
  13         .section .debug_str,"MS",@progbits,1
  14 str_producer:
  15         .asciz "Handmade DWARF producer"
  16 str_CU1:
  17         .asciz "Compile_Unit_1"
  18 str_CU1_dir:
  19         .asciz "/home/test/CU1"
  20 str_CU2:
  21         .asciz "Compile_Unit_2"
  22 str_CU2_dir:
  23         .asciz "/home/test/CU2"
  24 str_TU:
  25         .asciz "Type_Unit"
  26 str_TU_type:
  27         .asciz "MyStruct"
  28 str_Subprogram:
  29         .asciz "MyFunc"
  30 str_Variable1:
  31         .asciz "MyVar1"
  32 str_Variable2:
  33         .asciz "MyVar2"
  34 str_Variable3:
  35         .asciz "MyVar3"
  36
  37 # Every unit contributes to the string_offsets table.
  38         .section .debug_str_offsets,"",@progbits
  39 # CU1's contribution
  40         .long .debug_str_offsets_segment0_end-.debug_str_offsets_base0+4
  41         .short 5    # DWARF version
  42         .short 0    # Padding
  43 .debug_str_offsets_base0:
  44         .long str_producer
  45         .long str_CU1
  46         .long str_CU1_dir
  47         .long str_Subprogram
  48         .long str_Variable1
  49         .long str_Variable2
  50         .long str_Variable3
  51 .debug_str_offsets_segment0_end:
  52 # A 4-byte gap.
  53         .long 0
  54 # CU2's contribution in DWARF64 format
  55         .long 0xffffffff
  56         .quad .debug_str_offsets_segment1_end-.debug_str_offsets_base1+4
  57         .short 5    # DWARF version
  58         .short 0    # Padding
  59 .debug_str_offsets_base1:
  60         .quad str_producer
  61         .quad str_CU2
  62         .quad str_CU2_dir
  63 .debug_str_offsets_segment1_end:
  64 # The TU's contribution
  65         .long .debug_str_offsets_segment2_end-.debug_str_offsets_base2+4
  66         .short 5    # DWARF version
  67         .short 0    # Padding
  68 .debug_str_offsets_base2:
  69         .long str_TU
  70         .long str_TU_type
  71 .debug_str_offsets_segment2_end:
  72
  73         .section .debug_str.dwo,"MSe",@progbits,1
  74 dwo_str_CU_5_producer:
  75         .asciz "Handmade split DWARF producer"
  76 dwo_str_CU_5_name:
  77         .asciz "V5_split_compile_unit"
  78 dwo_str_CU_5_comp_dir:
  79         .asciz "/home/test/splitCU"
  80 dwo_str_TU_5:
  81         .asciz "V5_split_type_unit"
  82 dwo_str_TU_5_type:
  83         .asciz "V5_split_Mystruct"
  84
  85         .section .debug_str_offsets.dwo,"e",@progbits
  86 # One contribution only in a .dwo file
  87         .long .debug_dwo_str_offsets_segment0_end-.debug_dwo_str_offsets_base0+4
  88         .short 5    # DWARF version
  89         .short 0    # Padding
  90 .debug_dwo_str_offsets_base0:
  91         .long dwo_str_CU_5_producer-.debug_str.dwo
  92         .long dwo_str_CU_5_name-.debug_str.dwo
  93         .long dwo_str_CU_5_comp_dir-.debug_str.dwo
  94         .long dwo_str_TU_5-.debug_str.dwo
  95         .long dwo_str_TU_5_type-.debug_str.dwo
  96 .debug_dwo_str_offsets_segment0_end:
  97
  98 # All CUs/TUs use the same abbrev section for simplicity.
  99         .section .debug_abbrev,"",@progbits
 100         .byte 0x01  # Abbrev code
 101         .byte 0x11  # DW_TAG_compile_unit
 102         .byte 0x01  # DW_CHILDREN_yes
 103         .byte 0x25  # DW_AT_producer
 104         .byte 0x1a  # DW_FORM_strx
 105         .byte 0x03  # DW_AT_name
 106         .byte 0x1a  # DW_FORM_strx
 107         .byte 0x72  # DW_AT_str_offsets_base
 108         .byte 0x17  # DW_FORM_sec_offset
 109         .byte 0x1b  # DW_AT_comp_dir
 110         .byte 0x1a  # DW_FORM_strx
 111         .byte 0x00  # EOM(1)
 112         .byte 0x00  # EOM(2)
 113         .byte 0x02  # Abbrev code
 114         .byte 0x41  # DW_TAG_type_unit
 115         .byte 0x01  # DW_CHILDREN_yes
 116         .byte 0x03  # DW_AT_name
 117         .byte 0x1a  # DW_FORM_strx
 118         .byte 0x72  # DW_AT_str_offsets_base
 119         .byte 0x17  # DW_FORM_sec_offset
 120         .byte 0x00  # EOM(1)
 121         .byte 0x00  # EOM(2)
 122         .byte 0x03  # Abbrev code
 123         .byte 0x13  # DW_TAG_structure_type
 124         .byte 0x00  # DW_CHILDREN_no (no members)
 125         .byte 0x03  # DW_AT_name
 126         .byte 0x1a  # DW_FORM_strx
 127         .byte 0x00  # EOM(1)
 128         .byte 0x00  # EOM(2)
 129         .byte 0x04  # Abbrev code
 130         .byte 0x2e  # DW_TAG_subprogram
 131         .byte 0x01  # DW_CHILDREN_yes
 132         .byte 0x03  # DW_AT_name
 133         .byte 0x25  # DW_FORM_strx1
 134         .byte 0x00  # EOM(1)
 135         .byte 0x00  # EOM(2)
 136         .byte 0x05  # Abbrev code
 137         .byte 0x34  # DW_TAG_variable
 138         .byte 0x00  # DW_CHILDREN_no
 139         .byte 0x03  # DW_AT_name
 140         .byte 0x26  # DW_FORM_strx2
 141         .byte 0x49  # DW_AT_type
 142         .byte 0x13  # DW_FORM_ref4
 143         .byte 0x00  # EOM(1)
 144         .byte 0x00  # EOM(2)
 145         .byte 0x06  # Abbrev code
 146         .byte 0x34  # DW_TAG_variable
 147         .byte 0x00  # DW_CHILDREN_no
 148         .byte 0x03  # DW_AT_name
 149         .byte 0x27  # DW_FORM_strx3
 150         .byte 0x49  # DW_AT_type
 151         .byte 0x13  # DW_FORM_ref4
 152         .byte 0x00  # EOM(1)
 153         .byte 0x00  # EOM(2)
 154         .byte 0x07  # Abbrev code
 155         .byte 0x34  # DW_TAG_variable
 156         .byte 0x00  # DW_CHILDREN_no
 157         .byte 0x03  # DW_AT_name
 158         .byte 0x28  # DW_FORM_strx4
 159         .byte 0x49  # DW_AT_type
 160         .byte 0x13  # DW_FORM_ref4
 161         .byte 0x00  # EOM(1)
 162         .byte 0x00  # EOM(2)
 163         .byte 0x08  # Abbrev code
 164         .byte 0x24  # DW_TAG_base_type
 165         .byte 0x00  # DW_CHILDREN_no
 166         .byte 0x3e  # DW_AT_encoding
 167         .byte 0x0b  # DW_FORM_data1
 168         .byte 0x00  # EOM(1)
 169         .byte 0x00  # EOM(2)
 170         .byte 0x09  # Abbrev code
 171         .byte 0x11  # DW_TAG_compile_unit
 172         .byte 0x00  # DW_CHILDREN_no
 173         .byte 0x00  # EOM(1)
 174         .byte 0x00  # EOM(2)
 175         .byte 0x00  # EOM(3)
 176
 177 # And a .dwo copy of a subset for the .dwo sections.
 178         .section .debug_abbrev.dwo,"e",@progbits
 179         .byte 0x01  # Abbrev code
 180         .byte 0x11  # DW_TAG_compile_unit
 181         .byte 0x00  # DW_CHILDREN_no
 182         .byte 0x25  # DW_AT_producer
 183         .byte 0x1a  # DW_FORM_strx
 184         .byte 0x03  # DW_AT_name
 185         .byte 0x1a  # DW_FORM_strx
 186         .byte 0x1b  # DW_AT_comp_dir
 187         .byte 0x1a  # DW_FORM_strx
 188         .byte 0x00  # EOM(1)
 189         .byte 0x00  # EOM(2)
 190         .byte 0x02  # Abbrev code
 191         .byte 0x41  # DW_TAG_type_unit
 192         .byte 0x01  # DW_CHILDREN_yes
 193         .byte 0x03  # DW_AT_name
 194         .byte 0x1a  # DW_FORM_strx
 195         .byte 0x00  # EOM(1)
 196         .byte 0x00  # EOM(2)
 197         .byte 0x03  # Abbrev code
 198         .byte 0x13  # DW_TAG_structure_type
 199         .byte 0x00  # DW_CHILDREN_no (no members)
 200         .byte 0x03  # DW_AT_name
 201         .byte 0x1a  # DW_FORM_strx
 202         .byte 0x00  # EOM(1)
 203         .byte 0x00  # EOM(2)
 204         .byte 0x00  # EOM(3)
 205
 206         .section .debug_info,"",@progbits
 207
 208 # DWARF v5 CU header.
 209         .long  CU1_5_end-CU1_5_version  # Length of Unit
 210 CU1_5_version:
 211         .short 5               # DWARF version number
 212         .byte 1                # DWARF Unit Type
 213         .byte 8                # Address Size (in bytes)
 214         .long .debug_abbrev    # Offset Into Abbrev. Section
 215 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
 216 # DW_AT_str_offsets and DW_AT_compdir.
 217         .byte 1                # Abbreviation code
 218         .byte 0                # The index of the producer string
 219         .byte 1                # The index of the CU name string
 220         .long .debug_str_offsets_base0
 221         .byte 2                # The index of the comp dir string
 222 # A subprogram DIE with DW_AT_name, using DW_FORM_strx1.
 223         .byte 4                # Abbreviation code
 224         .byte 3                # Subprogram name string (DW_FORM_strx1)
 225 # A variable DIE with DW_AT_name, using DW_FORM_strx2, and DW_AT_type.
 226         .byte 5                # Abbreviation code
 227         .short 0x0004          # Subprogram name string (DW_FORM_strx2)
 228         .long TypeDie-.debug_info
 229 # A variable DIE with DW_AT_name, using DW_FORM_strx3, and DW_AT_type.
 230         .byte 6                # Abbreviation code
 231         .byte 5                # Subprogram name string (DW_FORM_strx3)
 232         .short 0               # Subprogram name string (DW_FORM_strx3)
 233         .long TypeDie-.debug_info
 234 # A variable DIE with DW_AT_name, using DW_FORM_strx4, and DW_AT_type.
 235         .byte 7                # Abbreviation code
 236         .long 6                # Subprogram name string (DW_FORM_strx4)
 237         .long TypeDie-.debug_info
 238         .byte 0 # NULL
 239 # A base type DIE with DW_AT_encoding.
 240 TypeDie:
 241         .byte 8                # Abbreviation code
 242         .byte 5                # DW_ATE_signed
 243         .byte 0 # NULL
 244         .byte 0 # NULL
 245 CU1_5_end:
 246
 247 # DWARF v5 CU header
 248         .long 0xffffffff
 249         .quad CU2_5_end-CU2_5_version  # Length of Unit
 250 CU2_5_version:
 251         .short 5               # DWARF version number
 252         .byte 1                # DWARF Unit Type
 253         .byte 8                # Address Size (in bytes)
 254         .quad .debug_abbrev    # Offset Into Abbrev. Section
 255 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
 256 # DW_AT_str_offsets and DW_AT_compdir.
 257         .byte 1                # Abbreviation code
 258         .byte 0                # The index of the producer string
 259         .byte 1                # The index of the CU name string
 260         .quad .debug_str_offsets_base1
 261         .byte 2                # The index of the comp dir string
 262         .byte 0 # NULL
 263 CU2_5_end:
 264 # DWARF v5 CU without str_offsets_base - this shouldn't produce an error/nor
 265 # prevent other str_offsets contributions from being dumped.
 266         .long CU3_5_end-CU3_5_version  # Length of Unit
 267 CU3_5_version:
 268         .short 5               # DWARF version number
 269         .byte 1                # DWARF Unit Type
 270         .byte 8                # Address Size (in bytes)
 271         .long .debug_abbrev    # Offset Into Abbrev. Section
 272 # The compile-unit DIE with no attributes.
 273         .byte 9                # Abbreviation code
 274 CU3_5_end:
 275
 276
 277
 278
 279
 280
 281         .section .debug_types,"",@progbits
 282 # DWARF v5 Type unit header.
 283 TU_5_start:
 284         .long  TU_5_end-TU_5_version  # Length of Unit
 285 TU_5_version:
 286         .short 5               # DWARF version number
 287         .byte 2                # DWARF Unit Type
 288         .byte 8                # Address Size (in bytes)
 289         .long .debug_abbrev    # Offset Into Abbrev. Section
 290         .quad 0x0011223344556677 # Type Signature
 291         .long TU_5_type-TU_5_start # Type offset
 292 # The type-unit DIE, which has a name.
 293         .byte 2                # Abbreviation code
 294         .byte 0                # Index of the unit type name string
 295         .long .debug_str_offsets_base2  # offset into the str_offsets section
 296 # The type DIE, which has a name.
 297 TU_5_type:
 298         .byte 3                # Abbreviation code
 299         .byte 1                # Index of the type name string
 300         .byte 0 # NULL
 301         .byte 0 # NULL
 302 TU_5_end:
 303
 304         .section .debug_info.dwo,"e",@progbits
 305
 306 # DWARF v5 split CU header.
 307         .long  CU_split_5_end-CU_split_5_version  # Length of Unit
 308 CU_split_5_version:
 309         .short 5               # DWARF version number
 310         .byte 1                # DWARF Unit Type
 311         .byte 8                # Address Size (in bytes)
 312         .long .debug_abbrev.dwo  # Offset Into Abbrev Section
 313 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
 314 # DW_AT_str_offsets and DW_AT_compdir.
 315         .byte 1                # Abbreviation code
 316         .byte 0                # The index of the producer string
 317         .byte 1                # The index of the CU name string
 318         .byte 2                # The index of the comp dir string
 319         .byte 0 # NULL
 320 CU_split_5_end:
 321
 322         .section .debug_types.dwo,"e",@progbits
 323
 324 # DWARF v5 split type unit header.
 325 TU_split_5_start:
 326         .long  TU_split_5_end-TU_split_5_version  # Length of Unit
 327 TU_split_5_version:
 328         .short 5               # DWARF version number
 329         .byte 6                # DWARF Unit Type
 330         .byte 8                # Address Size (in bytes)
 331         .long .debug_abbrev.dwo  # Offset Into Abbrev Section
 332         .quad 0x8899aabbccddeeff # Type Signature
 333         .long TU_split_5_type-TU_split_5_start  # Type offset
 334 # The type-unit DIE, which has a name.
 335         .byte 2                # Abbreviation code
 336         .byte 3                # The index of the type unit name string
 337 # The type DIE, which has a name.
 338 TU_split_5_type:
 339         .byte 3                # Abbreviation code
 340         .byte 4                # The index of the type name string
 341         .byte 0 # NULL
 342         .byte 0 # NULL
 343 TU_split_5_end:
 344
 345 # We are using a hand-constructed object file and are interest in the correct
 346 # diplay of the DW_str_offsetsbase attribute, the correct display of strings
 347 # and the dump of the .debug_str_offsets[.dwo] table.
 348
 349 # Abbreviation for DW_AT_str_offsets_base
 350 # COMMON:      .debug_abbrev contents:
 351 # COMMON-NOT:  contents:
 352 # COMMON:      DW_TAG_compile_unit
 353 # COMMON-NOT:  DW_TAG
 354 # COMMON:      DW_AT_str_offsets_base DW_FORM_sec_offset
 355 #
 356 # Verify that strings are displayed correctly as indexed strings
 357 # COMMON:      .debug_info contents:
 358 # COMMON-NOT:  contents:
 359 # COMMON:      DW_TAG_compile_unit
 360 # COMMON-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
 361 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_1")
 362 # COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
 363 # COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU1")
 364 # COMMON-NOT:  NULL
 365 # COMMON:      DW_TAG_subprogram
 366 # COMMON-NEXT: DW_AT_name [DW_FORM_strx1] (indexed (00000003) string = "MyFunc")
 367 # COMMON-NOT:  NULL
 368 # COMMON:      DW_TAG_variable
 369 # COMMON-NEXT: DW_AT_name [DW_FORM_strx2] (indexed (00000004) string = "MyVar1")
 370 # COMMON-NOT:  NULL
 371 # COMMON:      DW_TAG_variable
 372 # COMMON-NEXT: DW_AT_name [DW_FORM_strx3] (indexed (00000005) string = "MyVar2")
 373 # COMMON-NOT:  NULL
 374 # COMMON:      DW_TAG_variable
 375 # COMMON-NEXT: DW_AT_name [DW_FORM_strx4] (indexed (00000006) string = "MyVar3")
 376 #
 377 # Second compile unit (b.cpp)
 378 # COMMON:      DW_TAG_compile_unit
 379 # COMMON-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
 380 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_2")
 381 # COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x0000000000000038)
 382 # COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU2")
 383 #
 384 # The split CU
 385 # SPLIT:       .debug_info.dwo contents:
 386 # SPLIT-NOT:   contents:
 387 # SPLIT:       DW_TAG_compile_unit
 388 # SPLIT-NEXT:  DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade split DWARF producer")
 389 # SPLIT-NEXT:  DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "V5_split_compile_unit")
 390 # SPLIT-NEXT:  DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/splitCU")
 391 #
 392 # The type unit
 393 # COMMON:      .debug_types contents:
 394 # COMMON:      DW_TAG_type_unit
 395 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000000) string = "Type_Unit")
 396 # COMMON:      DW_TAG_structure_type
 397 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "MyStruct")
 398 #
 399 # The split type unit
 400 # SPLIT:       .debug_types.dwo contents:
 401 # SPLIT:       DW_TAG_type_unit
 402 # SPLIT-NEXT:  DW_AT_name [DW_FORM_strx] (indexed (00000003) string = "V5_split_type_unit")
 403 # SPLIT:       DW_TAG_structure_type
 404 # SPLIT-NEXT:  DW_AT_name [DW_FORM_strx] (indexed (00000004) string = "V5_split_Mystruct")
 405 #
 406 # The .debug_str_offsets section
 407 # OFFSETS:      .debug_str_offsets contents:
 408 # OFFSETS-NEXT: 0x00000000: Contribution size = 32, Format = DWARF32, Version = 5
 409 # OFFSETS-NEXT: 0x00000008: 00000000 "Handmade DWARF producer"
 410 # OFFSETS-NEXT: 0x0000000c: 00000018 "Compile_Unit_1"
 411 # OFFSETS-NEXT: 0x00000010: 00000027 "/home/test/CU1"
 412 # OFFSETS-NEXT: 0x00000014: 00000067 "MyFunc"
 413 # OFFSETS-NEXT: 0x00000018: 0000006e "MyVar1"
 414 # OFFSETS-NEXT: 0x0000001c: 00000075 "MyVar2"
 415 # OFFSETS-NEXT: 0x00000020: 0000007c "MyVar3"
 416 # OFFSETS-NEXT: Gap, length = 4
 417 # OFFSETS-NEXT: 0x00000028: Contribution size = 28, Format = DWARF64, Version = 5
 418 # OFFSETS-NEXT: 0x00000038: 0000000000000000 "Handmade DWARF producer"
 419 # OFFSETS-NEXT: 0x00000040: 0000000000000036 "Compile_Unit_2"
 420 # OFFSETS-NEXT: 0x00000048: 0000000000000045 "/home/test/CU2"
 421 # OFFSETS-NEXT: 0x00000050: Contribution size = 12, Format = DWARF32, Version = 5
 422 # OFFSETS-NEXT: 0x00000058: 00000054 "Type_Unit"
 423 # OFFSETS-NEXT: 0x0000005c: 0000005e "MyStruct"
 424 #
 425 # OFFSETS:       .debug_str_offsets.dwo contents:
 426 # OFFSETS-NEXT:  0x00000000: Contribution size = 24, Format = DWARF32, Version = 5
 427 # OFFSETS-NEXT:  0x00000008: 00000000 "Handmade split DWARF producer"
 428 # OFFSETS-NEXT:  0x0000000c: 0000001e "V5_split_compile_unit"
 429 # OFFSETS-NEXT:  0x00000010: 00000034 "/home/test/splitCU"
 430 # OFFSETS-NEXT:  0x00000014: 00000047 "V5_split_type_unit"
 431 # OFFSETS-NEXT:  0x00000018: 0000005a "V5_split_Mystruct"
 432
 433 # VERIFY: No errors.
 434
 435 # ERR-NOT: parsing a range list table: