test/DebugInfo/X86/dwarfdump-str-offsets-invalid-6.s

   1 # RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
   2 # RUN: llvm-dwarfdump -v %t.o 2>&1 | FileCheck --check-prefix=OVERLAP %s
   3 #
   4 # Test object to verify that llvm-dwarfdump handles an invalid string offsets
   5 # table with overlapping contributions.
   6
   7         .section .debug_str,"MS",@progbits,1
   8 str_producer:
   9         .asciz "Handmade DWARF producer"
  10 str_CU1:
  11         .asciz "Compile_Unit_1"
  12 str_CU1_dir:
  13         .asciz "/home/test/CU1"
  14 str_CU2:
  15         .asciz "Compile_Unit_2"
  16 str_CU2_dir:
  17         .asciz "/home/test/CU2"
  18 str_TU:
  19         .asciz "Type_Unit"
  20 str_TU_type:
  21         .asciz "MyStruct"
  22
  23         .section .debug_str.dwo,"MS",@progbits,1
  24 dwo_str_CU_5_producer:
  25         .asciz "Handmade split DWARF producer"
  26 dwo_str_CU_5_name:
  27         .asciz "V5_split_compile_unit"
  28 dwo_str_CU_5_comp_dir:
  29         .asciz "/home/test/splitCU"
  30 dwo_str_TU_5:
  31         .asciz "V5_split_type_unit"
  32 dwo_str_TU_5_type:
  33         .asciz "V5_split_Mystruct"
  34
  35 # A rudimentary abbrev section.
  36         .section .debug_abbrev,"",@progbits
  37         .byte 0x01  # Abbrev code
  38         .byte 0x11  # DW_TAG_compile_unit
  39         .byte 0x00  # DW_CHILDREN_no
  40         .byte 0x72  # DW_AT_str_offsets_base
  41         .byte 0x17  # DW_FORM_sec_offset
  42         .byte 0x00  # EOM(1)
  43         .byte 0x00  # EOM(2)
  44         .byte 0x00  # EOM(3)
  45
  46         .section .debug_info,"",@progbits
  47 # DWARF v5 CU header.
  48         .long  CU1_5_end-CU1_5_version  # Length of Unit
  49 CU1_5_version:
  50         .short 5               # DWARF version number
  51         .byte 1                # DWARF Unit Type
  52         .byte 8                # Address Size (in bytes)
  53         .long .debug_abbrev    # Offset Into Abbrev. Section
  54 # A compile-unit DIE, which has no attributes.
  55         .byte 1                # Abbreviation code
  56         .long .debug_str_offsets_base0
  57 CU1_5_end:
  58
  59 # DWARF v5 CU header.
  60         .long  CU2_5_end-CU2_5_version  # Length of Unit
  61 CU2_5_version:
  62         .short 5               # DWARF version number
  63         .byte 1                # DWARF Unit Type
  64         .byte 8                # Address Size (in bytes)
  65         .long .debug_abbrev    # Offset Into Abbrev. Section
  66 # A compile-unit DIE, which has no attributes.
  67         .byte 1                # Abbreviation code
  68         .long .debug_str_offsets_base1
  69 CU2_5_end:
  70
  71         .section .debug_str_offsets,"",@progbits
  72 # CU1's contribution
  73         .long .debug_str_offsets_segment1_end-.debug_str_offsets_base0+4
  74         .short 5    # DWARF version
  75         .short 0    # Padding
  76 .debug_str_offsets_base0:
  77         .long str_producer
  78         .long str_CU1
  79         .long str_CU1_dir
  80 .debug_str_offsets_segment0_end:
  81 # CU2's contribution
  82 # Overlapping with CU1's contribution
  83         .long .debug_str_offsets_segment1_end-.debug_str_offsets_base1+4
  84         .short 5    # DWARF version
  85         .short 0    # Padding
  86 .debug_str_offsets_base1:
  87         .long str_producer
  88         .long str_CU2
  89         .long str_CU2_dir
  90 .debug_str_offsets_segment1_end:
  91
  92 # OVERLAP:            error: overlapping contributions to string offsets table in section .debug_str_offsets.