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4d2b659c90
Unwind info generated by MSVC tends to have relocations pointing at static "label" symbols like "$LN4" instead of regular ones based on the actual function's name. Try to resolve such symbols to a non-label symbol if possible (ideally to an external symbol), to improve the readability. Differential Revision: https://reviews.llvm.org/D101567
82 lines
2.6 KiB
YAML
82 lines
2.6 KiB
YAML
# Check that we print the external symbol "func", even though the pdata
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# relocation points at the '$LN4' symbol.
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# RUN: yaml2obj %s -o %t.obj
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# RUN: llvm-readobj --unwind %t.obj | FileCheck %s
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# CHECK: Function: func (0x0)
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--- !COFF
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header:
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Machine: IMAGE_FILE_MACHINE_ARM64
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Characteristics: [ ]
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sections:
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- Name: '.text$mn'
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Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
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Alignment: 8
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SectionData: FE0F1FF8FF0301D1E003009100000094FF030191FE0741F8C0035FD6
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Relocations:
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- VirtualAddress: 12
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SymbolName: other
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Type: IMAGE_REL_ARM64_BRANCH26
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- Name: .pdata
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_READ ]
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Alignment: 4
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SectionData: 000000001D00A002
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Relocations:
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- VirtualAddress: 0
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SymbolName: '$LN4'
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Type: IMAGE_REL_ARM64_ADDR32NB
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symbols:
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- Name: '.text$mn'
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Value: 0
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SectionNumber: 1
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_NULL
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StorageClass: IMAGE_SYM_CLASS_STATIC
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SectionDefinition:
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Length: 28
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NumberOfRelocations: 1
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NumberOfLinenumbers: 0
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CheckSum: 1015150991
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Number: 0
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Selection: IMAGE_COMDAT_SELECT_NODUPLICATES
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- Name: other
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Value: 0
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SectionNumber: 0
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_FUNCTION
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StorageClass: IMAGE_SYM_CLASS_EXTERNAL
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- Name: func
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Value: 0
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SectionNumber: 1
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_FUNCTION
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StorageClass: IMAGE_SYM_CLASS_EXTERNAL
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- Name: '$LN4'
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Value: 0
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SectionNumber: 1
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_NULL
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StorageClass: IMAGE_SYM_CLASS_LABEL
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- Name: .pdata
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Value: 0
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SectionNumber: 2
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_NULL
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StorageClass: IMAGE_SYM_CLASS_STATIC
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SectionDefinition:
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Length: 8
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NumberOfRelocations: 1
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NumberOfLinenumbers: 0
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CheckSum: 3799667335
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Number: 2
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Selection: IMAGE_COMDAT_SELECT_ASSOCIATIVE
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- Name: '$pdata$func'
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Value: 0
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SectionNumber: 2
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_NULL
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StorageClass: IMAGE_SYM_CLASS_STATIC
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...
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