forked from OSchip/llvm-project
[DWARF] Fixing a bug with processing of DWARF v5 indexed strings in Mach-O objects.
Code to convert MachO - specific section debug section names to standard DWARF v5 section names was in the wrong place. Differential Revision: https://reviews.llvm.org/D35321 llvm-svn: 307872
This commit is contained in:
Wolfgang Pieb
parent
4d6ef11e48
commit
515d0e5001
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@ -964,6 +964,10 @@ DWARFContextInMemory::DWARFContextInMemory(
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Name = Name.substr(
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Name.find_first_not_of("._z")); // Skip ".", "z" and "_" prefixes.
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// Map platform specific debug section names to DWARF standard section
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// names.
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Name = Obj.mapDebugSectionName(Name);
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if (StringRef *SectionData = mapSectionToMember(Name)) {
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*SectionData = Data;
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if (Name == "debug_ranges") {
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@ -978,10 +982,6 @@ DWARFContextInMemory::DWARFContextInMemory(
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TypesDWOSections[Section].Data = Data;
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}
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// Map platform specific debug section names to DWARF standard section
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// names.
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Name = Obj.mapDebugSectionName(Name);
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if (RelocatedSection == Obj.section_end())
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continue;
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Binary file not shown.
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@ -0,0 +1,201 @@
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# Test object to verify dwarfdump handles v5 string offset tables in Mach-O.
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# This is similar to dwarfdump-str-offsets.s with 2 CUs and 1 TU, but no
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# split sections.
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#
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# To generate the test object:
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# llvm-mc -triple i386-apple-darwin9 dwarfdump-str-offsets-macho.s -filetype=obj \
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# -o dwarfdump-str-offsets-macho.o
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.section __DWARF,__debug_str,regular,debug
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Linfo_string:
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.asciz "Handmade DWARF producer"
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str_CU1:
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.asciz "Compile_Unit_1"
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str_CU1_dir:
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.asciz "/home/test/CU1"
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str_CU2:
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.asciz "Compile_Unit_2"
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str_CU2_dir:
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.asciz "/home/test/CU2"
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str_TU:
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.asciz "Type_Unit"
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str_TU_type:
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.asciz "MyStruct"
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str_Subprogram:
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.asciz "MyFunc"
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str_Variable1:
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.asciz "MyVar1"
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str_Variable2:
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.asciz "MyVar2"
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str_Variable3:
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.asciz "MyVar3"
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.section __DWARF,__debug_str_offs,regular,debug
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Ldebug_str_offsets:
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.long Ldebug_str_offsets_segment0_end-Ldebug_str_offsets_base0
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.short 5 # DWARF version
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.short 0 # Padding
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Ldebug_str_offsets_base0:
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.long str_producer
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.long str_CU1
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.long str_CU1_dir
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.long str_Subprogram
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.long str_Variable1
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.long str_Variable2
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.long str_Variable3
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Ldebug_str_offsets_segment0_end:
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# CU2's contribution
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.long Ldebug_str_offsets_segment1_end-Ldebug_str_offsets_base1
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.short 5 # DWARF version
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.short 0 # Padding
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Ldebug_str_offsets_base1:
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.long str_producer
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.long str_CU2
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.long str_CU2_dir
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Ldebug_str_offsets_segment1_end:
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# The TU's contribution
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.long Ldebug_str_offsets_segment2_end-Ldebug_str_offsets_base2
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.short 5 # DWARF version
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.short 0 # Padding
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Ldebug_str_offsets_base2:
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.long str_TU
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.long str_TU_type
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Ldebug_str_offsets_segment2_end:
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.section __DWARF,__debug_abbrev,regular,debug
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Lsection_abbrev:
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.byte 0x01 # Abbrev code
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.byte 0x11 # DW_TAG_compile_unit
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.byte 0x01 # DW_CHILDREN_yes
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.byte 0x25 # DW_AT_producer
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.byte 0x1a # DW_FORM_strx
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.byte 0x03 # DW_AT_name
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.byte 0x1a # DW_FORM_strx
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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 0x1b # DW_AT_comp_dir
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.byte 0x1a # DW_FORM_strx
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.byte 0x00 # EOM(1)
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.byte 0x00 # EOM(2)
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.byte 0x02 # Abbrev code
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.byte 0x41 # DW_TAG_type_unit
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.byte 0x01 # DW_CHILDREN_yes
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.byte 0x03 # DW_AT_name
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.byte 0x1a # DW_FORM_strx
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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 0x03 # Abbrev code
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.byte 0x13 # DW_TAG_structure_type
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.byte 0x00 # DW_CHILDREN_no (no members)
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.byte 0x03 # DW_AT_name
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.byte 0x1a # DW_FORM_strx
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.byte 0x00 # EOM(1)
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.byte 0x00 # EOM(2)
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.byte 0x04 # Abbrev code
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.byte 0x2e # DW_TAG_subprogram
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.byte 0x01 # DW_CHILDREN_yes
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.byte 0x03 # DW_AT_name
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.byte 0x25 # DW_FORM_strx1
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.byte 0x00 # EOM(1)
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.byte 0x00 # EOM(2)
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.byte 0x05 # Abbrev code
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.byte 0x34 # DW_TAG_variable
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.byte 0x00 # DW_CHILDREN_no
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.byte 0x03 # DW_AT_name
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.byte 0x26 # DW_FORM_strx2
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.byte 0x00 # EOM(1)
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.byte 0x00 # EOM(2)
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.byte 0x06 # Abbrev code
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.byte 0x34 # DW_TAG_variable
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.byte 0x00 # DW_CHILDREN_no
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.byte 0x03 # DW_AT_name
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.byte 0x27 # DW_FORM_strx3
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.byte 0x00 # EOM(1)
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.byte 0x00 # EOM(2)
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.byte 0x07 # Abbrev code
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.byte 0x34 # DW_TAG_variable
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.byte 0x00 # DW_CHILDREN_no
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.byte 0x03 # DW_AT_name
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.byte 0x28 # DW_FORM_strx4
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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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.section __DWARF,__debug_info,regular,debug
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Lsection_info:
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# DWARF v5 CU header.
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.long CU1_5_end-CU1_5_version # Length of Unit
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CU1_5_version:
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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 0 # Offset Into Abbrev. Section
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# The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
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# DW_AT_str_offsets and DW_AT_compdir.
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.byte 1 # Abbreviation code
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.byte 0 # The index of the producer string
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.byte 1 # The index of the CU name string
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.long Ldebug_str_offsets_base0-Ldebug_str_offsets
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.byte 2 # The index of the comp dir string
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# A subprogram DIE with DW_AT_name, using DW_FORM_strx1.
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.byte 4 # Abbreviation code
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.byte 3 # Subprogram name string (DW_FORM_strx1)
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# A variable DIE with DW_AT_name, using DW_FORM_strx2.
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.byte 5 # Abbreviation code
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.short 0x0004 # Subprogram name string (DW_FORM_strx2)
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# A variable DIE with DW_AT_name, using DW_FORM_strx3.
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.byte 6 # Abbreviation code
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.byte 5 # Subprogram name string (DW_FORM_strx3)
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.short 0 # Subprogram name string (DW_FORM_strx3)
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# A variable DIE with DW_AT_name, using DW_FORM_strx4.
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.byte 7 # Abbreviation code
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.quad 0x00000006 # Subprogram name string (DW_FORM_strx4)
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.byte 0 # NULL
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.byte 0 # NULL
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.byte 0 # NULL
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CU1_5_end:
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# DWARF v5 CU header
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.long CU2_5_end-CU2_5_version # Length of Unit
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CU2_5_version:
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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 0 # Offset Into Abbrev. Section
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# The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
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# DW_AT_str_offsets and DW_AT_compdir.
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.byte 1 # Abbreviation code
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.byte 0 # The index of the producer string
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.byte 1 # The index of the CU name string
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.long Ldebug_str_offsets_base1-Ldebug_str_offsets
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.byte 2 # The index of the comp dir string
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.byte 0 # NULL
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CU2_5_end:
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.section __DWARF,__debug_types,regular,debug
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# DWARF v5 Type unit header.
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TU_5_start:
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.long TU_5_end-TU_5_version # Length of Unit
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TU_5_version:
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.short 5 # DWARF version number
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.byte 2 # 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 0x0011223344556677 # Type Signature
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.long TU_5_type-TU_5_start # Type offset
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# The type-unit DIE, which has a name.
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.byte 2 # Abbreviation code
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.byte 0 # Index of the unit type name string
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.long Ldebug_str_offsets_base2-Ldebug_str_offsets # offset into the str_offsets section
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# The type DIE, which has a name.
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TU_5_type:
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.byte 3 # Abbreviation code
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.byte 1 # Index of the type name string
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.byte 0 # NULL
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.byte 0 # NULL
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TU_5_end:
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.subsections_via_symbols
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@ -1,92 +1,94 @@
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RUN: llvm-dwarfdump %p/Inputs/dwarfdump-str-offsets.x86_64.o | FileCheck %s
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RUN: llvm-dwarfdump %p/Inputs/dwarfdump-str-offsets.x86_64.o | FileCheck --check-prefix=COMMON \
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RUN: --check-prefix=SPLIT %s
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RUN: llvm-dwarfdump %p/Inputs/dwarfdump-str-offsets-macho.o | FileCheck --check-prefix=COMMON %s
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; We are using a hand-constructed object file and are interest in the correct
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; diplay of the DW_str_offsetsbase attribute, the correct display of strings
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; and the dump of the .debug_str_offsets[.dwo] table.
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;
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; Abbreviation for DW_AT_str_offsets_base
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CHECK: .debug_abbrev contents:
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CHECK-NOT: contents:
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CHECK: DW_TAG_compile_unit
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CHECK-NOT: DW_TAG
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CHECK: DW_AT_str_offsets_base DW_FORM_sec_offset
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COMMON: .debug_abbrev contents:
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COMMON-NOT: contents:
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COMMON: DW_TAG_compile_unit
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COMMON-NOT: DW_TAG
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COMMON: DW_AT_str_offsets_base DW_FORM_sec_offset
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; Verify that strings are displayed correctly as indexed strings
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CHECK: .debug_info contents:
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CHECK-NOT: contents:
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CHECK: DW_TAG_compile_unit
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CHECK-NEXT: DW_AT_producer [DW_FORM_strx] ( indexed (00000000) string = "Handmade DWARF producer")
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CHECK-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "Compile_Unit_1")
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CHECK-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
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CHECK-NEXT: DW_AT_comp_dir [DW_FORM_strx] ( indexed (00000002) string = "/home/test/CU1")
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CHECK-NOT: NULL
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CHECK: DW_TAG_subprogram
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CHECK-NEXT: DW_AT_name [DW_FORM_strx1] ( indexed (00000003) string = "MyFunc")
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CHECK-NOT: NULL
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CHECK: DW_TAG_variable
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CHECK-NEXT: DW_AT_name [DW_FORM_strx2] ( indexed (00000004) string = "MyVar1")
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CHECK-NOT: NULL
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CHECK: DW_TAG_variable
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CHECK-NEXT: DW_AT_name [DW_FORM_strx3] ( indexed (00000005) string = "MyVar2")
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CHECK-NOT: NULL
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CHECK: DW_TAG_variable
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CHECK-NEXT: DW_AT_name [DW_FORM_strx4] ( indexed (00000006) string = "MyVar3")
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COMMON: .debug_info contents:
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COMMON-NOT: contents:
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COMMON: DW_TAG_compile_unit
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COMMON-NEXT: DW_AT_producer [DW_FORM_strx] ( indexed (00000000) string = "Handmade DWARF producer")
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COMMON-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "Compile_Unit_1")
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COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
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COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] ( indexed (00000002) string = "/home/test/CU1")
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COMMON-NOT: NULL
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COMMON: DW_TAG_subprogram
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COMMON-NEXT: DW_AT_name [DW_FORM_strx1] ( indexed (00000003) string = "MyFunc")
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COMMON-NOT: NULL
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COMMON: DW_TAG_variable
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COMMON-NEXT: DW_AT_name [DW_FORM_strx2] ( indexed (00000004) string = "MyVar1")
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COMMON-NOT: NULL
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COMMON: DW_TAG_variable
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COMMON-NEXT: DW_AT_name [DW_FORM_strx3] ( indexed (00000005) string = "MyVar2")
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COMMON-NOT: NULL
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COMMON: DW_TAG_variable
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COMMON-NEXT: DW_AT_name [DW_FORM_strx4] ( indexed (00000006) string = "MyVar3")
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; Second compile unit (b.cpp)
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CHECK: DW_TAG_compile_unit
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CHECK-NEXT: DW_AT_producer [DW_FORM_strx] ( indexed (00000000) string = "Handmade DWARF producer")
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CHECK-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "Compile_Unit_2")
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CHECK-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x0000002c)
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CHECK-NEXT: DW_AT_comp_dir [DW_FORM_strx] ( indexed (00000002) string = "/home/test/CU2")
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COMMON: DW_TAG_compile_unit
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COMMON-NEXT: DW_AT_producer [DW_FORM_strx] ( indexed (00000000) string = "Handmade DWARF producer")
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COMMON-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "Compile_Unit_2")
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COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x0000002c)
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COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] ( indexed (00000002) string = "/home/test/CU2")
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; The split CU
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CHECK: .debug_info.dwo contents:
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CHECK-NOT: contents:
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CHECK: DW_TAG_compile_unit
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CHECK-NEXT: DW_AT_producer [DW_FORM_strx] ( indexed (00000000) string = "Handmade split DWARF producer")
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CHECK-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "V5_split_compile_unit")
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CHECK-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
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CHECK-NEXT: DW_AT_comp_dir [DW_FORM_strx] ( indexed (00000002) string = "/home/test/splitCU")
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SPLIT: .debug_info.dwo contents:
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SPLIT-NOT: contents:
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SPLIT: DW_TAG_compile_unit
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SPLIT-NEXT: DW_AT_producer [DW_FORM_strx] ( indexed (00000000) string = "Handmade split DWARF producer")
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SPLIT-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "V5_split_compile_unit")
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SPLIT-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
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SPLIT-NEXT: DW_AT_comp_dir [DW_FORM_strx] ( indexed (00000002) string = "/home/test/splitCU")
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; The type unit
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CHECK: .debug_types contents:
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CHECK: DW_TAG_type_unit
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CHECK-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000000) string = "Type_Unit")
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CHECK-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000040)
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CHECK: DW_TAG_structure_type
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CHECK-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "MyStruct")
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COMMON: .debug_types contents:
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COMMON: DW_TAG_type_unit
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COMMON-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000000) string = "Type_Unit")
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COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000040)
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COMMON: DW_TAG_structure_type
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COMMON-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "MyStruct")
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; The split type unit
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CHECK: .debug_types.dwo contents:
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CHECK: DW_TAG_type_unit
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CHECK-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000000) string = "V5_split_type_unit")
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CHECK-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x0000001c)
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CHECK: DW_TAG_structure_type
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CHECK-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "V5_split_Mystruct")
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SPLIT: .debug_types.dwo contents:
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SPLIT: DW_TAG_type_unit
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SPLIT-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000000) string = "V5_split_type_unit")
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SPLIT-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x0000001c)
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SPLIT: DW_TAG_structure_type
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SPLIT-NEXT: DW_AT_name [DW_FORM_strx] ( indexed (00000001) string = "V5_split_Mystruct")
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; The .debug_str_offsets section
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CHECK: .debug_str_offsets contents:
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CHECK-NEXT: 0x00000000: Contribution size = 28, Version = 5
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CHECK-NEXT: 0x00000008: 00000000 "Handmade DWARF producer"
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CHECK-NEXT: 0x0000000c: 00000018 "Compile_Unit_1"
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CHECK-NEXT: 0x00000010: 00000027 "/home/test/CU1"
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CHECK-NEXT: 0x00000014: 00000067 "MyFunc"
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CHECK-NEXT: 0x00000018: 0000006e "MyVar1"
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CHECK-NEXT: 0x0000001c: 00000075 "MyVar2"
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CHECK-NEXT: 0x00000020: 0000007c "MyVar3"
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CHECK-NEXT: 0x00000024: Contribution size = 12, Version = 5
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CHECK-NEXT: 0x0000002c: 00000000 "Handmade DWARF producer"
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CHECK-NEXT: 0x00000030: 00000036 "Compile_Unit_2"
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CHECK-NEXT: 0x00000034: 00000045 "/home/test/CU2"
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CHECK-NEXT: 0x00000038: Contribution size = 8, Version = 5
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CHECK-NEXT: 0x00000040: 00000054 "Type_Unit"
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CHECK-NEXT: 0x00000044: 0000005e "MyStruct"
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COMMON: .debug_str_offsets contents:
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COMMON-NEXT: 0x00000000: Contribution size = 28, Version = 5
|
||||
COMMON-NEXT: 0x00000008: 00000000 "Handmade DWARF producer"
|
||||
COMMON-NEXT: 0x0000000c: 00000018 "Compile_Unit_1"
|
||||
COMMON-NEXT: 0x00000010: 00000027 "/home/test/CU1"
|
||||
COMMON-NEXT: 0x00000014: 00000067 "MyFunc"
|
||||
COMMON-NEXT: 0x00000018: 0000006e "MyVar1"
|
||||
COMMON-NEXT: 0x0000001c: 00000075 "MyVar2"
|
||||
COMMON-NEXT: 0x00000020: 0000007c "MyVar3"
|
||||
COMMON-NEXT: 0x00000024: Contribution size = 12, Version = 5
|
||||
COMMON-NEXT: 0x0000002c: 00000000 "Handmade DWARF producer"
|
||||
COMMON-NEXT: 0x00000030: 00000036 "Compile_Unit_2"
|
||||
COMMON-NEXT: 0x00000034: 00000045 "/home/test/CU2"
|
||||
COMMON-NEXT: 0x00000038: Contribution size = 8, Version = 5
|
||||
COMMON-NEXT: 0x00000040: 00000054 "Type_Unit"
|
||||
COMMON-NEXT: 0x00000044: 0000005e "MyStruct"
|
||||
|
||||
CHECK: .debug_str_offsets.dwo contents:
|
||||
CHECK-NEXT: 0x00000000: Contribution size = 12, Version = 5
|
||||
CHECK-NEXT: 0x00000008: 00000000 "Handmade split DWARF producer"
|
||||
CHECK-NEXT: 0x0000000c: 0000001e "V5_split_compile_unit"
|
||||
CHECK-NEXT: 0x00000010: 00000034 "/home/test/splitCU"
|
||||
CHECK-NEXT: 0x00000014: Contribution size = 8, Version = 5
|
||||
CHECK-NEXT: 0x0000001c: 00000047 "V5_split_type_unit"
|
||||
CHECK-NEXT: 0x00000020: 0000005a "V5_split_Mystruct"
|
||||
SPLIT: .debug_str_offsets.dwo contents:
|
||||
SPLIT-NEXT: 0x00000000: Contribution size = 12, Version = 5
|
||||
SPLIT-NEXT: 0x00000008: 00000000 "Handmade split DWARF producer"
|
||||
SPLIT-NEXT: 0x0000000c: 0000001e "V5_split_compile_unit"
|
||||
SPLIT-NEXT: 0x00000010: 00000034 "/home/test/splitCU"
|
||||
SPLIT-NEXT: 0x00000014: Contribution size = 8, Version = 5
|
||||
SPLIT-NEXT: 0x0000001c: 00000047 "V5_split_type_unit"
|
||||
SPLIT-NEXT: 0x00000020: 0000005a "V5_split_Mystruct"
|
||||
|
|
|
|||
Loading…
Reference in New Issue