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llvm-project/lld/test/COFF/Inputs/guardcf-align-foobar.yaml

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lld-link: align sections to 16 bytes if referenced from the gfids table Summary: Control flow guard works best when targets it checks are 16-byte aligned. Microsoft's link.exe helps ensure this by aligning code from sections that are referenced from the gfids table to 16 bytes when linking with -guard:cf, even if the original section specifies a smaller alignment. This change implements that behavior in lld-link. See https://crbug.com/857012 for more details. Reviewers: ruiu, hans, thakis, zturner Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D48690 llvm-svn: 335864
2018-06-28 23:22:40 +08:00
--- !COFF
header:
Machine: IMAGE_FILE_MACHINE_AMD64
Characteristics: [ ]
sections:
- Name: .text.foo
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
Alignment: 1
SectionData: 31C0C3
- Name: .text.bar
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
Alignment: 1
SectionData: FFE1
symbols:
- Name: .text.foo
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 3
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 3963538403
Number: 1
- Name: .text.bar
Value: 0
SectionNumber: 2
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_STATIC
SectionDefinition:
Length: 2
NumberOfRelocations: 0
NumberOfLinenumbers: 0
CheckSum: 1143549852
Number: 2
- Name: foo
Value: 0
SectionNumber: 1
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
- Name: bar
Value: 0
SectionNumber: 2
SimpleType: IMAGE_SYM_TYPE_NULL
ComplexType: IMAGE_SYM_DTYPE_NULL
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
...