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