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

   1 # RUN: llvm-mc -triple i386-apple-darwin9 %s -filetype=obj -o %t.o
   2 # RUN: llvm-dwarfdump -v %t.o | FileCheck --check-prefix=COMMON %s
   3 #
   4 # Test object to verify dwarfdump handles v5 string offset tables in Mach-O.
   5 # This is similar to dwarfdump-str-offsets.s with 2 CUs and 1 TU, but no
   6 # split sections.
   7 #
   8         .section        __DWARF,__debug_str,regular,debug
   9 Linfo_string:
  10         .asciz "Handmade DWARF producer"
  11 str_CU1:
  12         .asciz "Compile_Unit_1"
  13 str_CU1_dir:
  14         .asciz "/home/test/CU1"
  15 str_CU2:
  16         .asciz "Compile_Unit_2"
  17 str_CU2_dir:
  18         .asciz "/home/test/CU2"
  19 str_TU:
  20         .asciz "Type_Unit"
  21 str_TU_type:
  22         .asciz "MyStruct"
  23 str_Subprogram:
  24         .asciz "MyFunc"
  25 str_Variable1:
  26         .asciz "MyVar1"
  27 str_Variable2:
  28         .asciz "MyVar2"
  29 str_Variable3:
  30         .asciz "MyVar3"
  31
  32         .section        __DWARF,__debug_str_offs,regular,debug
  33 Ldebug_str_offsets:
  34         .long Ldebug_str_offsets_segment0_end-Ldebug_str_offsets_base0+4
  35         .short 5    # DWARF version
  36         .short 0    # Padding
  37 Ldebug_str_offsets_base0:
  38         .long str_producer
  39         .long str_CU1
  40         .long str_CU1_dir
  41         .long str_Subprogram
  42         .long str_Variable1
  43         .long str_Variable2
  44         .long str_Variable3
  45 Ldebug_str_offsets_segment0_end:
  46 # A 4-byte gap.
  47         .long 0
  48 # CU2's contribution (DWARF64 format)
  49         .long 0xffffffff
  50         .quad Ldebug_str_offsets_segment1_end-Ldebug_str_offsets_base1+4
  51         .short 5    # DWARF version
  52         .short 0    # Padding
  53 Ldebug_str_offsets_base1:
  54         .quad str_producer
  55         .quad str_CU2
  56         .quad str_CU2_dir
  57 Ldebug_str_offsets_segment1_end:
  58 # The TU's contribution
  59         .long Ldebug_str_offsets_segment2_end-Ldebug_str_offsets_base2+4
  60         .short 5    # DWARF version
  61         .short 0    # Padding
  62 Ldebug_str_offsets_base2:
  63         .long str_TU
  64         .long str_TU_type
  65 Ldebug_str_offsets_segment2_end:
  66
  67         .section        __DWARF,__debug_abbrev,regular,debug
  68 Lsection_abbrev:
  69         .byte 0x01  # Abbrev code
  70         .byte 0x11  # DW_TAG_compile_unit
  71         .byte 0x01  # DW_CHILDREN_yes
  72         .byte 0x25  # DW_AT_producer
  73         .byte 0x1a  # DW_FORM_strx
  74         .byte 0x03  # DW_AT_name
  75         .byte 0x1a  # DW_FORM_strx
  76         .byte 0x72  # DW_AT_str_offsets_base
  77         .byte 0x17  # DW_FORM_sec_offset
  78         .byte 0x1b  # DW_AT_comp_dir
  79         .byte 0x1a  # DW_FORM_strx
  80         .byte 0x00  # EOM(1)
  81         .byte 0x00  # EOM(2)
  82         .byte 0x02  # Abbrev code
  83         .byte 0x41  # DW_TAG_type_unit
  84         .byte 0x01  # DW_CHILDREN_yes
  85         .byte 0x03  # DW_AT_name
  86         .byte 0x1a  # DW_FORM_strx
  87         .byte 0x72  # DW_AT_str_offsets_base
  88         .byte 0x17  # DW_FORM_sec_offset
  89         .byte 0x00  # EOM(1)
  90         .byte 0x00  # EOM(2)
  91         .byte 0x03  # Abbrev code
  92         .byte 0x13  # DW_TAG_structure_type
  93         .byte 0x00  # DW_CHILDREN_no (no members)
  94         .byte 0x03  # DW_AT_name
  95         .byte 0x1a  # DW_FORM_strx
  96         .byte 0x00  # EOM(1)
  97         .byte 0x00  # EOM(2)
  98         .byte 0x04  # Abbrev code
  99         .byte 0x2e  # DW_TAG_subprogram
 100         .byte 0x01  # DW_CHILDREN_yes
 101         .byte 0x03  # DW_AT_name
 102         .byte 0x25  # DW_FORM_strx1
 103         .byte 0x00  # EOM(1)
 104         .byte 0x00  # EOM(2)
 105         .byte 0x05  # Abbrev code
 106         .byte 0x34  # DW_TAG_variable
 107         .byte 0x00  # DW_CHILDREN_no
 108         .byte 0x03  # DW_AT_name
 109         .byte 0x26  # DW_FORM_strx2
 110         .byte 0x00  # EOM(1)
 111         .byte 0x00  # EOM(2)
 112         .byte 0x06  # Abbrev code
 113         .byte 0x34  # DW_TAG_variable
 114         .byte 0x00  # DW_CHILDREN_no
 115         .byte 0x03  # DW_AT_name
 116         .byte 0x27  # DW_FORM_strx3
 117         .byte 0x00  # EOM(1)
 118         .byte 0x00  # EOM(2)
 119         .byte 0x07  # Abbrev code
 120         .byte 0x34  # DW_TAG_variable
 121         .byte 0x00  # DW_CHILDREN_no
 122         .byte 0x03  # DW_AT_name
 123         .byte 0x28  # DW_FORM_strx4
 124         .byte 0x00  # EOM(1)
 125         .byte 0x00  # EOM(2)
 126         .byte 0x00  # EOM(3)
 127
 128         .section        __DWARF,__debug_info,regular,debug
 129 Lsection_info:
 130 # DWARF v5 CU header.
 131         .long  CU1_5_end-CU1_5_version  # Length of Unit
 132 CU1_5_version:
 133         .short 5               # DWARF version number
 134         .byte 1                # DWARF Unit Type
 135         .byte 8                # Address Size (in bytes)
 136         .long 0                # Offset Into Abbrev. Section
 137 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
 138 # DW_AT_str_offsets and DW_AT_compdir.
 139         .byte 1                # Abbreviation code
 140         .byte 0                # The index of the producer string
 141         .byte 1                # The index of the CU name string
 142         .long Ldebug_str_offsets_base0-Ldebug_str_offsets
 143         .byte 2                # The index of the comp dir string
 144 # A subprogram DIE with DW_AT_name, using DW_FORM_strx1.
 145         .byte 4                # Abbreviation code
 146         .byte 3                # Subprogram name string (DW_FORM_strx1)
 147 # A variable DIE with DW_AT_name, using DW_FORM_strx2.
 148         .byte 5                # Abbreviation code
 149         .short 0x0004          # Subprogram name string (DW_FORM_strx2)
 150 # A variable DIE with DW_AT_name, using DW_FORM_strx3.
 151         .byte 6                # Abbreviation code
 152         .byte 5                # Subprogram name string (DW_FORM_strx3)
 153         .short 0               # Subprogram name string (DW_FORM_strx3)
 154 # A variable DIE with DW_AT_name, using DW_FORM_strx4.
 155         .byte 7                # Abbreviation code
 156         .quad 0x00000006       # Subprogram name string (DW_FORM_strx4)
 157         .byte 0 # NULL
 158         .byte 0 # NULL
 159         .byte 0 # NULL
 160 CU1_5_end:
 161
 162 # DWARF v5 CU header
 163         .long  0xffffffff
 164         .quad  CU2_5_end-CU2_5_version  # Length of Unit
 165 CU2_5_version:
 166         .short 5               # DWARF version number
 167         .byte 1                # DWARF Unit Type
 168         .byte 8                # Address Size (in bytes)
 169         .quad 0                # Offset Into Abbrev. Section
 170 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
 171 # DW_AT_str_offsets and DW_AT_compdir.
 172         .byte 1                # Abbreviation code
 173         .byte 0                # The index of the producer string
 174         .byte 1                # The index of the CU name string
 175         .quad Ldebug_str_offsets_base1-Ldebug_str_offsets
 176         .byte 2                # The index of the comp dir string
 177         .byte 0 # NULL
 178 CU2_5_end:
 179
 180         .section        __DWARF,__debug_types,regular,debug
 181 # DWARF v5 Type unit header.
 182 TU_5_start:
 183         .long  TU_5_end-TU_5_version  # Length of Unit
 184 TU_5_version:
 185         .short 5               # DWARF version number
 186         .byte 2                # DWARF Unit Type
 187         .byte 8                # Address Size (in bytes)
 188         .long 0                # Offset Into Abbrev. Section
 189         .quad 0x0011223344556677 # Type Signature
 190         .long TU_5_type-TU_5_start # Type offset
 191 # The type-unit DIE, which has a name.
 192         .byte 2                # Abbreviation code
 193         .byte 0                # Index of the unit type name string
 194         .long Ldebug_str_offsets_base2-Ldebug_str_offsets  # offset into the str_offsets section
 195 # The type DIE, which has a name.
 196 TU_5_type:
 197         .byte 3                # Abbreviation code
 198         .byte 1                # Index of the type name string
 199         .byte 0 # NULL
 200         .byte 0 # NULL
 201 TU_5_end:
 202
 203
 204 .subsections_via_symbols
 205
 206 # We are using a hand-constructed object file and are interest in the correct
 207 # diplay of the DW_str_offsetsbase attribute and the correct display of strings.
 208 #
 209 # Abbreviation for DW_AT_str_offsets_base
 210 # COMMON:      .debug_abbrev contents:
 211 # COMMON-NOT:  contents:
 212 # COMMON:      DW_TAG_compile_unit
 213 # COMMON-NOT:  DW_TAG
 214 # COMMON:      DW_AT_str_offsets_base DW_FORM_sec_offset
 215 #
 216 # Verify that strings are displayed correctly as indexed strings
 217 # COMMON:      .debug_info contents:
 218 # COMMON-NOT:  contents:
 219 # COMMON:      DW_TAG_compile_unit
 220 # COMMON-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
 221 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_1")
 222 # COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
 223 # COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU1")
 224 # COMMON-NOT:  NULL
 225 # COMMON:      DW_TAG_subprogram
 226 # COMMON-NEXT: DW_AT_name [DW_FORM_strx1] (indexed (00000003) string = "MyFunc")
 227 # COMMON-NOT:  NULL
 228 # COMMON:      DW_TAG_variable
 229 # COMMON-NEXT: DW_AT_name [DW_FORM_strx2] (indexed (00000004) string = "MyVar1")
 230 # COMMON-NOT:  NULL
 231 # COMMON:      DW_TAG_variable
 232 # COMMON-NEXT: DW_AT_name [DW_FORM_strx3] (indexed (00000005) string = "MyVar2")
 233 # COMMON-NOT:  NULL
 234 # COMMON:      DW_TAG_variable
 235 # COMMON-NEXT: DW_AT_name [DW_FORM_strx4] (indexed (00000006) string = "MyVar3")
 236 #
 237 # Second compile unit (b.cpp)
 238 # COMMON:      DW_TAG_compile_unit
 239 # COMMON-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
 240 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_2")
 241 # COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000038)
 242 # COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU2")
 243 #
 244 # The type unit
 245 # COMMON:      .debug_types contents:
 246 # COMMON:      DW_TAG_type_unit
 247 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000000) string = "Type_Unit")
 248 # COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset]       (0x00000058)
 249 # COMMON:      DW_TAG_structure_type
 250 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "MyStruct")
 251 #
 252 # The .debug_str_offsets section
 253 # COMMON:      .debug_str_offsets contents:
 254 # COMMON-NEXT: 0x00000000: Contribution size = 32, Format = DWARF32, Version = 5
 255 # COMMON-NEXT: 0x00000008: 00000000 "Handmade DWARF producer"
 256 # COMMON-NEXT: 0x0000000c: 00000018 "Compile_Unit_1"
 257 # COMMON-NEXT: 0x00000010: 00000027 "/home/test/CU1"
 258 # COMMON-NEXT: 0x00000014: 00000067 "MyFunc"
 259 # COMMON-NEXT: 0x00000018: 0000006e "MyVar1"
 260 # COMMON-NEXT: 0x0000001c: 00000075 "MyVar2"
 261 # COMMON-NEXT: 0x00000020: 0000007c "MyVar3"
 262 # COMMON-NEXT: 0x00000024: Gap, length = 4
 263 # COMMON-NEXT: 0x00000028: Contribution size = 28, Format = DWARF64, Version = 5
 264 # COMMON-NEXT: 0x00000038: 00000000 "Handmade DWARF producer"
 265 # COMMON-NEXT: 0x00000040: 00000036 "Compile_Unit_2"
 266 # COMMON-NEXT: 0x00000048: 00000045 "/home/test/CU2"
 267 # COMMON-NEXT: 0x00000050: Contribution size = 12, Format = DWARF32, Version = 5
 268 # COMMON-NEXT: 0x00000058: 00000054 "Type_Unit"
 269 # COMMON-NEXT: 0x0000005c: 0000005e "MyStruct"