548d22c073
There's actually a room to improve this patch. Instead of not merging sections that have different alignements, we can choose the section that has the largest alignment requirement among all sections that are otherwise considered the same. Then all section alignments are satisfied, so we can merge them. I don't know if that improvement could make any difference for real-world input, so I'll leave it alone. Would be interesting to revisit later. llvm-svn: 248581
62 lines
2.0 KiB
Plaintext
62 lines
2.0 KiB
Plaintext
# RUN: yaml2obj < %s > %t.obj
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# RUN: lld-link /entry:foo /out:%t.exe /subsystem:console /include:bar \
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# RUN: /verbose %t.obj > %t.log 2>&1
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# RUN: FileCheck %s < %t.log
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# CHECK-NOT: Selected foo
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# CHECK-NOT: Removed bar
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---
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header:
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Machine: IMAGE_FILE_MACHINE_AMD64
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Characteristics: []
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sections:
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- Name: '.text$mn'
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Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
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Alignment: 8
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SectionData: 4883EC28E8000000004883C428C3
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- Name: '.text$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: 16
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SectionData: 4883EC28E8000000004883C428C3
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symbols:
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- Name: '.text$mn'
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Value: 0
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SectionNumber: 1
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SimpleType: IMAGE_SYM_TYPE_NULL
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ComplexType: IMAGE_SYM_DTYPE_NULL
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StorageClass: IMAGE_SYM_CLASS_STATIC
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SectionDefinition:
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Length: 14
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NumberOfRelocations: 0
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NumberOfLinenumbers: 0
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CheckSum: 1682752513
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Number: 0
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Selection: IMAGE_COMDAT_SELECT_NODUPLICATES
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- Name: '.text$mn'
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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: 14
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NumberOfRelocations: 0
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NumberOfLinenumbers: 0
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CheckSum: 1682752513
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Number: 0
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Selection: IMAGE_COMDAT_SELECT_NODUPLICATES
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- Name: foo
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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: bar
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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_FUNCTION
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StorageClass: IMAGE_SYM_CLASS_EXTERNAL
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...
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