test/DebugInfo/X86/dwarfdump-str-offsets-invalid.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 %s
   3 #
   4 # Test object to verify that llvm-dwarfdump handles an invalid string offsets
   5 # table.
   6 #
   7 # A rudimentary abbrev section.
   8         .section .debug_abbrev,"",@progbits
   9         .byte 0x01  # Abbrev code
  10         .byte 0x11  # DW_TAG_compile_unit
  11         .byte 0x00  # DW_CHILDREN_no
  12         .byte 0x72  # DW_AT_str_offsets_base
  13         .byte 0x17  # DW_FORM_sec_offset
  14         .byte 0x00  # EOM(1)
  15         .byte 0x00  # EOM(2)
  16         .byte 0x00  # EOM(3)
  17
  18 # A rudimentary compile unit to convince dwarfdump that we are dealing with a
  19 # DWARF v5 string offsets table.
  20         .section .debug_info,"",@progbits
  21
  22 # DWARF v5 32 bit CU header.
  23         .long  CU1_end-CU1_begin  # Length of Unit
  24 CU1_begin:
  25         .short 5               # DWARF version number
  26         .byte 1                # DWARF Unit Type
  27         .byte 8                # Address Size (in bytes)
  28         .long .debug_abbrev    # Offset Into Abbrev. Section
  29         .byte 1                # Abbreviation code: DW_TAG_compile_unit
  30         .long 0                # DW_AT_str_offsets_base
  31 CU1_end:
  32
  33 # DWARF v5 64 bit CU header.
  34         .long 0xffffffff
  35         .quad  CU2_end-CU2_begin  # Length of Unit
  36 CU2_begin:
  37         .short 5               # DWARF version number
  38         .byte 1                # DWARF Unit Type
  39         .byte 8                # Address Size (in bytes)
  40         .quad .debug_abbrev    # Offset Into Abbrev. Section
  41         .byte 1                # Abbreviation code: DW_TAG_compile_unit
  42         .quad 0                # DW_AT_str_offsets_base
  43 CU2_end:
  44         .long  CU3_end-CU3_begin  # Length of Unit
  45 CU3_begin:
  46         .short 5               # DWARF version number
  47         .byte 1                # DWARF Unit Type
  48         .byte 8                # Address Size (in bytes)
  49         .long .debug_abbrev    # Offset Into Abbrev. Section
  50         .byte 1                # Abbreviation code: DW_TAG_compile_unit
  51         .quad .str_off0        # DW_AT_str_offsets_base
  52 CU3_end:
  53         .long  CU4_end-CU4_begin  # Length of Unit
  54 CU4_begin:
  55         .short 5               # DWARF version number
  56         .byte 1                # DWARF Unit Type
  57         .byte 8                # Address Size (in bytes)
  58         .long .debug_abbrev    # Offset Into Abbrev. Section
  59         .byte 1                # Abbreviation code: DW_TAG_compile_unit
  60         .quad .str_off1        # DW_AT_str_offsets_base
  61 CU4_end:
  62         .long  CU5_end-CU5_begin  # Length of Unit
  63 CU5_begin:
  64         .short 5               # DWARF version number
  65         .byte 1                # DWARF Unit Type
  66         .byte 8                # Address Size (in bytes)
  67         .long .debug_abbrev    # Offset Into Abbrev. Section
  68         .byte 1                # Abbreviation code: DW_TAG_compile_unit
  69         .long .str_off2_begin  # DW_AT_str_offsets_base
  70 CU5_end:
  71         .long  CU6_end-CU6_begin  # Length of Unit
  72 CU6_begin:
  73         .short 5               # DWARF version number
  74         .byte 1                # DWARF Unit Type
  75         .byte 8                # Address Size (in bytes)
  76         .long .debug_abbrev    # Offset Into Abbrev. Section
  77         .byte 1                # Abbreviation code: DW_TAG_compile_unit
  78         .long .str_off3_begin  # DW_AT_str_offsets_base
  79 CU6_end:
  80         .long 0xffffffff
  81         .quad  CU7_end-CU7_begin  # Length of Unit
  82 CU7_begin:
  83         .short 5               # DWARF version number
  84         .byte 1                # DWARF Unit Type
  85         .byte 8                # Address Size (in bytes)
  86         .quad .debug_abbrev    # Offset Into Abbrev. Section
  87         .byte 1                # Abbreviation code: DW_TAG_compile_unit
  88         .quad .str_off4_begin  # DW_AT_str_offsets_base
  89 CU7_end:
  90         .long  CU8_end-CU8_begin  # Length of Unit
  91 CU8_begin:
  92         .short 5               # DWARF version number
  93         .byte 1                # DWARF Unit Type
  94         .byte 8                # Address Size (in bytes)
  95         .long .debug_abbrev    # Offset Into Abbrev. Section
  96         .byte 1                # Abbreviation code: DW_TAG_compile_unit
  97         .long .str_off_end+16  # DW_AT_str_offsets_base
  98 CU8_end:
  99         .long 0xffffffff
 100         .quad  CU9_end-CU9_begin  # Length of Unit
 101 CU9_begin:
 102         .short 5               # DWARF version number
 103         .byte 1                # DWARF Unit Type
 104         .byte 8                # Address Size (in bytes)
 105         .quad .debug_abbrev    # Offset Into Abbrev. Section
 106         .byte 1                # Abbreviation code: DW_TAG_compile_unit
 107         .quad .str_off_end+8  # DW_AT_str_offsets_base
 108 CU9_end:
 109
 110         .section .debug_str_offsets,"",@progbits
 111 # Invalid length
 112         .long 0xfffffff4
 113         .short 5    # DWARF version
 114         .short 0    # Padding
 115 .str_off0:
 116         .long 0
 117 # Length beyond section bounds
 118         .long .str_off_end-.str_off1+8
 119         .short 5    # DWARF version
 120         .short 0    # Padding
 121 .str_off1:
 122         .long 0
 123 # Length intrudes on following unit
 124         .long .str_off2_end-.str_off2_begin+8
 125         .short 5    # DWARF version
 126         .short 0    # Padding
 127 .str_off2_begin:
 128         .long 0
 129 .str_off2_end:
 130 # Plain contribution, no errors here
 131         .long .str_off3_end-.str_off3_begin
 132         .short 5    # DWARF version
 133         .short 0    # Padding
 134 .str_off3_begin:
 135         .long 0
 136 .str_off3_end:
 137 # 32 bit contribution referenced from a 64 bit unit
 138         .long .str_off4_end-.str_off4_begin
 139         .short 5    # DWARF version
 140         .short 0    # Padding
 141 .str_off4_begin:
 142         .long 0
 143 .str_off4_end:
 144 .str_off_end:
 145
 146
 147 # CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: insufficient space for 32 bit header prefix
 148 # CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: insufficient space for 64 bit header prefix
 149 # CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: invalid length
 150 # CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: length exceeds section size
 151 # CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: 32 bit contribution referenced from a 64 bit unit
 152 # CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: section offset exceeds section size
 153 # CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: section offset exceeds section size
 154 # CHECK: error: overlapping contributions to string offsets table in section .debug_str_offsets.