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4f1d6dd171
Makes it easier to test "this doesn't produce an error" (& indeed makes that the implied default so we don't accidentally write tests that have silent/sneaky errors as well as the positive behavior we're testing for) Though the support for applying relocations is patchy enough that a bunch of tests treat lack of relocation application as more of a warning than an error - so rather than me trying to figure out how to add support for a bunch of relocation types, let's degrade that to a warning to match the usage (& indeed, it's sort of more of a tool warning anyway - it's not that the DWARF is wrong, just that the tool can't fully cope with it - and it's not like the tool won't dump the DWARF, it just won't follow/render certain relocations - I guess in the most general case it might try to render an unrelocated value & instead render something bogus... but mostly seems to be about interesting relocations used in eh_frame (& honestly it might be nice if we were lazier about doing this relocation resolution anyway - if you're not dumping eh_frame, should we really be erroring about the relocations in it?))
155 lines
6.3 KiB
ArmAsm
155 lines
6.3 KiB
ArmAsm
# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
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# RUN: not llvm-dwarfdump -v %t.o 2>&1 | FileCheck %s
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#
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# Test object to verify that llvm-dwarfdump handles an invalid string offsets
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# table.
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#
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# A rudimentary abbrev section.
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.section .debug_abbrev,"",@progbits
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.byte 0x01 # Abbrev code
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.byte 0x11 # DW_TAG_compile_unit
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.byte 0x00 # DW_CHILDREN_no
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.byte 0x72 # DW_AT_str_offsets_base
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.byte 0x17 # DW_FORM_sec_offset
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.byte 0x00 # EOM(1)
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.byte 0x00 # EOM(2)
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.byte 0x00 # EOM(3)
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# A rudimentary compile unit to convince dwarfdump that we are dealing with a
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# DWARF v5 string offsets table.
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.section .debug_info,"",@progbits
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# DWARF v5 32 bit CU header.
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.long CU1_end-CU1_begin # Length of Unit
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CU1_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.long 0 # DW_AT_str_offsets_base
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CU1_end:
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# DWARF v5 64 bit CU header.
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.long 0xffffffff
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.quad CU2_end-CU2_begin # Length of Unit
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CU2_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.quad .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.quad 0 # DW_AT_str_offsets_base
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CU2_end:
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.long CU3_end-CU3_begin # Length of Unit
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CU3_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.quad .str_off0 # DW_AT_str_offsets_base
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CU3_end:
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.long CU4_end-CU4_begin # Length of Unit
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CU4_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.quad .str_off1 # DW_AT_str_offsets_base
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CU4_end:
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.long CU5_end-CU5_begin # Length of Unit
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CU5_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.long .str_off2_begin # DW_AT_str_offsets_base
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CU5_end:
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.long CU6_end-CU6_begin # Length of Unit
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CU6_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.long .str_off3_begin # DW_AT_str_offsets_base
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CU6_end:
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.long 0xffffffff
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.quad CU7_end-CU7_begin # Length of Unit
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CU7_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.quad .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.quad .str_off4_begin # DW_AT_str_offsets_base
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CU7_end:
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.long CU8_end-CU8_begin # Length of Unit
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CU8_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.long .str_off_end+16 # DW_AT_str_offsets_base
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CU8_end:
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.long 0xffffffff
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.quad CU9_end-CU9_begin # Length of Unit
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CU9_begin:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.quad .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbreviation code: DW_TAG_compile_unit
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.quad .str_off_end+8 # DW_AT_str_offsets_base
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CU9_end:
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.section .debug_str_offsets,"",@progbits
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# Invalid length
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.long 0xfffffff4
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.short 5 # DWARF version
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.short 0 # Padding
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.str_off0:
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.long 0
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# Length beyond section bounds
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.long .str_off_end-.str_off1+8
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.short 5 # DWARF version
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.short 0 # Padding
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.str_off1:
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.long 0
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# Length intrudes on following unit
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.long .str_off2_end-.str_off2_begin+8
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.short 5 # DWARF version
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.short 0 # Padding
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.str_off2_begin:
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.long 0
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.str_off2_end:
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# Plain contribution, no errors here
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.long .str_off3_end-.str_off3_begin
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.short 5 # DWARF version
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.short 0 # Padding
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.str_off3_begin:
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.long 0
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.str_off3_end:
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# 32 bit contribution referenced from a 64 bit unit
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.long .str_off4_end-.str_off4_begin
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.short 5 # DWARF version
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.short 0 # Padding
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.str_off4_begin:
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.long 0
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.str_off4_end:
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.str_off_end:
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# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: insufficient space for 32 bit header prefix
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# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: insufficient space for 64 bit header prefix
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# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: invalid length
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# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: length exceeds section size
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# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: 32 bit contribution referenced from a 64 bit unit
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# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: section offset exceeds section size
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# CHECK: error: invalid reference to or invalid content in .debug_str_offsets[.dwo]: section offset exceeds section size
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# CHECK: error: overlapping contributions to string offsets table in section .debug_str_offsets.
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