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f473ff580e
The integrity checks for index entries in DWARFUnitHeader::extract() might cause the function to return before checking the state of an Error object, which leads to a crash in runtime. The patch fixes the issue by moving the checks in a safe place. Differential Revision: https://reviews.llvm.org/D75177
60 lines
2.1 KiB
ArmAsm
60 lines
2.1 KiB
ArmAsm
# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o - | \
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# RUN: llvm-dwarfdump -debug-info -
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## llvm-dwarfdump used to crash with this input because of an invalid size
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## of the compilation unit contribution in the .debug_cu_index section.
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.section .debug_abbrev.dwo, "e", @progbits
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.LAbbrBegin:
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.uleb128 1 # Abbreviation Code
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.uleb128 17 # DW_TAG_compile_unit
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.byte 0 # DW_CHILDREN_no
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.uleb128 3 # DW_AT_name
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.uleb128 8 # DW_FORM_string
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.uleb128 0x2131 # DW_AT_GNU_dwo_id
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.uleb128 7 # DW_FORM_data8
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 0 # EOM(3)
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.LAbbrEnd:
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.section .debug_info.dwo, "e", @progbits
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.LCUBegin:
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.long .LCUEnd-.LCUVersion # Length
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.LCUVersion:
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.short 4 # Version
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.long 0 # Abbrev offset
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.byte 4 # Address size
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.uleb128 1 # Abbrev [1] DW_TAG_compile_unit
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.asciz "a.c" # DW_AT_name
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.quad 0x1100001122222222 # DW_AT_GNU_dwo_id
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.LCUEnd:
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.section .debug_cu_index, "", @progbits
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## Header:
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.short 2 # Version
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.space 2 # Padding
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.long 2 # Section count
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.long 1 # Unit count
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.long 4 # Slot count
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## Hash Table of Signatures:
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.quad 0
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.quad 0
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.quad 0x1100001122222222
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.quad 0
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## Parallel Table of Indexes:
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.long 0
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.long 0
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.long 1
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.long 0
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## Table of Section Offsets:
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## Row 0:
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.long 1 # DW_SECT_INFO
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.long 3 # DW_SECT_ABBREV
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## Row 1:
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.long .LCUBegin-.debug_info.dwo # Offset in .debug_info.dwo
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.long .LAbbrBegin-.debug_abbrev.dwo # Offset in .debug_abbrev.dwo
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## Table of Section Sizes:
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.long .LCUEnd-.LCUBegin-1 # Size of the contribution in .debug_info.dwo (invalid)
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.long .LAbbrEnd-.LAbbrBegin
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