derek.holloway
7502bf64a4
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143 lines
6.3 KiB
ArmAsm
143 lines
6.3 KiB
ArmAsm
## Test that lldb handles (mainly, that it doesn't crash) the situation where
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## two skeleton compile units have the same DWO ID (and try to claim the same
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## split unit from the DWP file. This can sometimes happen when the compile unit
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## is nearly empty (e.g. because LTO has optimized all of it away).
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# RUN: llvm-mc -triple=x86_64-pc-linux -filetype=obj %s --defsym MAIN=0 > %t
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# RUN: llvm-mc -triple=x86_64-pc-linux -filetype=obj %s > %t.dwp
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# RUN: %lldb %t -o "image lookup -t my_enum_type" \
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# RUN: -o "image dump separate-debug-info" -o exit | FileCheck %s
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## Check that we're able to access the type within the split unit (no matter
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## which skeleton unit it ends up associated with). Completely ignoring the unit
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## might also be reasonable.
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# CHECK: image lookup -t my_enum_type
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# CHECK: 1 match found
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# CHECK: name = "my_enum_type", byte-size = 4, compiler_type = "enum my_enum_type {
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# CHECK-NEXT: }"
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#
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## Check that we get some indication of the error.
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# CHECK: image dump separate-debug-info
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# CHECK: Dwo ID Err Dwo Path
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# CHECK: 0xdeadbeefbaadf00d E multiple compile units with Dwo ID 0xdeadbeefbaadf00d
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.set DWO_ID, 0xdeadbeefbaadf00d
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## The main file.
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.ifdef MAIN
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.section .debug_abbrev,"",@progbits
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.byte 1 # Abbreviation Code
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.byte 74 # DW_TAG_compile_unit
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.byte 0 # DW_CHILDREN_no
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.byte 0x76 # DW_AT_dwo_name
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.byte 8 # DW_FORM_string
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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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.section .debug_info,"",@progbits
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.irpc I,01
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.Lcu_begin\I:
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.long .Ldebug_info_end\I-.Ldebug_info_start\I # Length of Unit
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.Ldebug_info_start\I:
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.short 5 # DWARF version number
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.byte 4 # 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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.quad DWO_ID # DWO id
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.byte 1 # Abbrev [1] DW_TAG_compile_unit
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.ascii "foo"
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.byte '0' + \I
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.asciz ".dwo\0" # DW_AT_dwo_name
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.Ldebug_info_end\I:
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.endr
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.else
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## DWP file starts here.
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.section .debug_abbrev.dwo,"e",@progbits
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.LAbbrevBegin:
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.byte 1 # Abbreviation Code
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.byte 17 # DW_TAG_compile_unit
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.byte 1 # DW_CHILDREN_yes
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.byte 37 # DW_AT_producer
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.byte 8 # DW_FORM_string
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.byte 19 # DW_AT_language
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.byte 5 # DW_FORM_data2
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 2 # Abbreviation Code
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.byte 4 # DW_TAG_enumeration_type
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.byte 8 # DW_FORM_string
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 11 # DW_AT_byte_size
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.byte 11 # DW_FORM_data1
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 4 # Abbreviation Code
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.byte 36 # DW_TAG_base_type
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.byte 8 # DW_FORM_string
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.byte 62 # DW_AT_encoding
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.byte 11 # DW_FORM_data1
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.byte 11 # DW_AT_byte_size
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.byte 11 # DW_FORM_data1
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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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.LAbbrevEnd:
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.section .debug_info.dwo,"e",@progbits
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.LCUBegin:
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.Lcu_begin1:
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.long .Ldebug_info_end1-.Ldebug_info_start1 # Length of Unit
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.Ldebug_info_start1:
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.short 5 # DWARF version number
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.byte 5 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long 0 # Offset Into Abbrev. Section
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.quad DWO_ID # DWO id
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.byte 1 # Abbrev [1] DW_TAG_compile_unit
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.asciz "Hand-written DWARF" # DW_AT_producer
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.short 12 # DW_AT_language
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.byte 2 # Abbrev [2] DW_TAG_enumeration_type
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.asciz "my_enum_type" # DW_AT_name
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.long .Lint-.Lcu_begin1 # DW_AT_type
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.byte 4 # DW_AT_byte_size
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.Lint:
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.byte 4 # Abbrev [4] DW_TAG_base_type
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.asciz "int" # DW_AT_name
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.byte 5 # DW_AT_encoding
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.byte 4 # DW_AT_byte_size
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.byte 0 # End Of Children Mark
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.Ldebug_info_end1:
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.LCUEnd:
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.section .debug_cu_index, "", @progbits
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## Header:
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.short 5 # Version
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.short 0 # Padding
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.long 2 # Section count
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.long 1 # Unit count
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.long 2 # Slot count
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## Hash Table of Signatures:
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.quad 0
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.quad DWO_ID
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## Parallel Table of Indexes:
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.long 0
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.long 1
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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 0 # Offset in .debug_info.dwo
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.long 0 # Offset in .debug_abbrev.dwo
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## Table of Section Sizes:
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.long .LCUEnd-.LCUBegin # Size in .debug_info.dwo
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.long .LAbbrevEnd-.LAbbrevBegin # Size in .debug_abbrev.dwo
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.endif
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