254 lines
8.8 KiB
YAML
254 lines
8.8 KiB
YAML
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# This test verifies that if a DW_TAG_compile_unit has DW_AT_ranges that
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# overlap, that it doesn't end up producing invalid errors claiming a child
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# DW_TAG_subprogram DIE is not in the parant (CU) ranges. Prior to the commit
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# that fixed this, a loop was iterating over all DW_AT_ranges for a DIE and
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# stopping the loop if any intersecting ranges were found. This would cause
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# the DW_TAG_subprogram DIEs, like "stripped2" and "main", to improperly report
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# that they were not contained in the parent's address ranges
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#
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# The DWARF looks like:
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# 0x0000000b: DW_TAG_compile_unit
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# DW_AT_name ("/tmp/main.c")
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# DW_AT_language (DW_LANG_C)
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# DW_AT_low_pc (0x0000000000000000)
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# DW_AT_ranges (0x00000000
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# [0x0000000000002000, 0x0000000000003000)
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# [0x0000000000000000, 0x0000000000000020)
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# [0x0000000000000000, 0x0000000000000030)
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# [0x0000000000001000, 0x0000000000002000))
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#
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# 0x0000001e: DW_TAG_subprogram
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# DW_AT_name ("stripped1")
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# DW_AT_low_pc (0x0000000000000000)
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# DW_AT_high_pc (0x0000000000000020)
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#
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# 0x0000002f: DW_TAG_subprogram
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# DW_AT_name ("stripped2")
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# DW_AT_low_pc (0x0000000000000000)
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# DW_AT_high_pc (0x0000000000000030)
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#
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# 0x00000044: DW_TAG_subprogram
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# DW_AT_name ("main")
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# DW_AT_low_pc (0x0000000000001000)
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# DW_AT_high_pc (0x0000000000002000)
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#
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# 0x00000055: DW_TAG_subprogram
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# DW_AT_name ("foo")
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# DW_AT_low_pc (0x0000000000002000)
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# DW_AT_high_pc (0x0000000000003000)
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#
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# 0x00000066: NULL
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# RUN: yaml2obj %s | not llvm-dwarfdump --verify - | FileCheck %s --implicit-check-not=error:
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# CHECK: error: DIE has overlapping ranges in DW_AT_ranges attribute: [0x0000000000000000, 0x0000000000000020) and [0x0000000000000000, 0x0000000000000030)
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# CHECK: 0x0000000b: DW_TAG_compile_unit
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# CHECK-NEXT: DW_AT_name ("/tmp/main.c")
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# CHECK-NEXT: DW_AT_language (DW_LANG_C)
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# CHECK-NEXT: DW_AT_low_pc (0x0000000000000000)
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# CHECK-NEXT: DW_AT_ranges (0x00000000
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# CHECK-NEXT: [0x0000000000002000, 0x0000000000003000)
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# CHECK-NEXT: [0x0000000000000000, 0x0000000000000020)
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# CHECK-NEXT: [0x0000000000000000, 0x0000000000000030)
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# CHECK-NEXT: [0x0000000000001000, 0x0000000000002000))
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# CHECK: error: DIEs have overlapping address ranges:
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# CHECK: 0x0000002f: DW_TAG_subprogram
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# CHECK-NEXT: DW_AT_name ("stripped2")
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# CHECK-NEXT: DW_AT_low_pc (0x0000000000000000)
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# CHECK-NEXT: DW_AT_high_pc (0x0000000000000030)
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# CHECK: 0x0000001e: DW_TAG_subprogram
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# CHECK-NEXT: DW_AT_name ("stripped1")
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# CHECK-NEXT: DW_AT_low_pc (0x0000000000000000)
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# CHECK-NEXT: DW_AT_high_pc (0x0000000000000020)
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# CHECK: Verifying .debug_info references...
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--- !mach-o
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FileHeader:
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magic: 0xFEEDFACF
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cputype: 0x01000007
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cpusubtype: 0x00000003
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filetype: 0x00000001
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ncmds: 4
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sizeofcmds: 464
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flags: 0x00002000
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reserved: 0x00000000
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LoadCommands:
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- cmd: LC_SEGMENT_64
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cmdsize: 392
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segname: ''
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vmaddr: 0
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vmsize: 261
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fileoff: 528
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filesize: 261
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maxprot: 7
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initprot: 7
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nsects: 4
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flags: 0
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Sections:
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- sectname: __debug_abbrev
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segname: __DWARF
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addr: 0x0000000000000000
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size: 36
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offset: 0x00000210
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align: 0
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reloff: 0x00000000
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nreloc: 0
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flags: 0x00000000
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reserved1: 0x00000000
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reserved2: 0x00000000
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reserved3: 0x00000000
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- sectname: __debug_info
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segname: __DWARF
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addr: 0x0000000000000024
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size: 103
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offset: 0x00000234
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align: 0
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reloff: 0x00000000
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nreloc: 0
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flags: 0x00000000
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reserved1: 0x00000000
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reserved2: 0x00000000
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reserved3: 0x00000000
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- sectname: __debug_ranges
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segname: __DWARF
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addr: 0x000000000000008B
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size: 80
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offset: 0x0000029B
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align: 0
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reloff: 0x00000000
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nreloc: 0
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flags: 0x00000000
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reserved1: 0x00000000
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reserved2: 0x00000000
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reserved3: 0x00000000
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- sectname: __debug_str
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segname: __DWARF
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addr: 0x00000000000000DB
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size: 42
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offset: 0x000002EB
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align: 0
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reloff: 0x00000000
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nreloc: 0
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flags: 0x00000000
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reserved1: 0x00000000
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reserved2: 0x00000000
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reserved3: 0x00000000
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- cmd: LC_SYMTAB
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cmdsize: 24
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symoff: 0
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nsyms: 0
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stroff: 792
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strsize: 8
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- cmd: LC_BUILD_VERSION
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cmdsize: 32
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platform: 1
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minos: 658944
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sdk: 658944
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ntools: 1
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Tools:
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- tool: 3
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version: 34734080
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- cmd: LC_DATA_IN_CODE
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cmdsize: 16
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dataoff: 792
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datasize: 0
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LinkEditData:
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StringTable:
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- ' '
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- ''
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- ''
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- ''
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- ''
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- ''
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- ''
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DWARF:
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debug_str:
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- ''
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- '/tmp/main.c'
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- stripped1
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- stripped2
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- main
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- foo
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debug_abbrev:
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- Table:
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- Code: 0x00000001
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Tag: DW_TAG_compile_unit
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Children: DW_CHILDREN_yes
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Attributes:
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- Attribute: DW_AT_name
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Form: DW_FORM_strp
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- Attribute: DW_AT_language
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Form: DW_FORM_data2
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- Attribute: DW_AT_low_pc
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Form: DW_FORM_addr
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- Attribute: DW_AT_ranges
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Form: DW_FORM_sec_offset
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- Code: 0x00000002
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Tag: DW_TAG_subprogram
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Children: DW_CHILDREN_no
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Attributes:
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- Attribute: DW_AT_name
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Form: DW_FORM_strp
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- Attribute: DW_AT_low_pc
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Form: DW_FORM_addr
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- Attribute: DW_AT_high_pc
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Form: DW_FORM_data4
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- Code: 0x00000003
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Tag: DW_TAG_subprogram
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Children: DW_CHILDREN_no
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Attributes:
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- Attribute: DW_AT_name
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Form: DW_FORM_strp
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- Attribute: DW_AT_low_pc
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Form: DW_FORM_addr
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- Attribute: DW_AT_high_pc
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Form: DW_FORM_addr
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debug_ranges:
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- Offset: 0x00000000
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AddrSize: 0x08
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Entries:
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- LowOffset: 0x0000000000002000
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HighOffset: 0x0000000000003000
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- LowOffset: 0x0000000000000000
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HighOffset: 0x0000000000000020
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- LowOffset: 0x0000000000000000
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HighOffset: 0x0000000000000030
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- LowOffset: 0x0000000000001000
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HighOffset: 0x0000000000002000
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debug_info:
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- Version: 4
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AddrSize: 8
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Entries:
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- AbbrCode: 0x00000001
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Values:
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- Value: 0x0000000000000001
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- Value: 0x0000000000000002
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- Value: 0x0000000000000000
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- Value: 0x0000000000000000
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- AbbrCode: 0x00000002
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Values:
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- Value: 0x000000000000000D
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- Value: 0x0000000000000000
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- Value: 0x0000000000000020
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- AbbrCode: 0x00000003
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Values:
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- Value: 0x0000000000000017
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- Value: 0x0000000000000000
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- Value: 0x0000000000000030
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- AbbrCode: 0x00000002
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Values:
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- Value: 0x0000000000000021
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- Value: 0x0000000000001000
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- Value: 0x0000000000001000
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- AbbrCode: 0x00000002
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Values:
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- Value: 0x0000000000000026
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- Value: 0x0000000000002000
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- Value: 0x0000000000001000
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- AbbrCode: 0x00000000
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...
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