forked from OSchip/llvm-project
[obj2yaml][XCOFF] Dump sections
Summary: This patch implements parsing sections for obj2yaml on AIX. Reviewed By: jhenderson Differential Revision: https://reviews.llvm.org/D98003
This commit is contained in:
Esme-Yi
parent
0057c7185d
commit
945df8bc4c
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@ -1,80 +1,147 @@
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# RUN: obj2yaml %S/Inputs/aix_xcoff.o | FileCheck %s
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# Test that we can parse the XCOFF object file correctly.
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# CHECK: --- !XCOFF
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# CHECK-NEXT: FileHeader:
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# CHECK-NEXT: MagicNumber: 0x1DF
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# CHECK-NEXT: NumberOfSections: 2
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# CHECK-NEXT: CreationTime: 1552337792
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# CHECK-NEXT: OffsetToSymbolTable: 0x13A
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# CHECK-NEXT: EntriesInSymbolTable: 22
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# CHECK-NEXT: AuxiliaryHeaderSize: 0
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# CHECK-NEXT: Flags: 0x0
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## This is a basic test to check if we can parse the XCOFF object file correctly.
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# RUN: yaml2obj %s -DMAGIC=0x01DF -o %t-32
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# RUN: obj2yaml %t-32 | FileCheck %s --check-prefix=CHECK32
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# RUN: yaml2obj %s -DMAGIC=0x01F7 -o %t-64
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# RUN: obj2yaml %t-64 | FileCheck %s --check-prefix=CHECK64
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# CHECK: Symbols:
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# CHECK-NEXT: - Name: .file
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# CHECK-NEXT: Value: 0x0
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# CHECK-NEXT: Section: N_DEBUG
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# CHECK-NEXT: Type: 0x3
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# CHECK-NEXT: StorageClass: C_FILE
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: i
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# CHECK-NEXT: Value: 0x0
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# CHECK-NEXT: Section: N_UNDEF
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_EXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: TestforXcoff
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# CHECK-NEXT: Value: 0x0
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# CHECK-NEXT: Section: N_UNDEF
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_EXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: .text
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# CHECK-NEXT: Value: 0x0
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# CHECK-NEXT: Section: .text
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_HIDEXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: .main
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# CHECK-NEXT: Value: 0x0
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# CHECK-NEXT: Section: .text
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_EXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: main
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# CHECK-NEXT: Value: 0x60
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# CHECK-NEXT: Section: .data
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_HIDEXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: main
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# CHECK-NEXT: Value: 0x60
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# CHECK-NEXT: Section: .data
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_EXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: .data
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# CHECK-NEXT: Value: 0x70
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# CHECK-NEXT: Section: .data
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_HIDEXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: TOC
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# CHECK-NEXT: Value: 0x74
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# CHECK-NEXT: Section: .data
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_HIDEXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: i
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# CHECK-NEXT: Value: 0x74
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# CHECK-NEXT: Section: .data
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_HIDEXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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# CHECK-NEXT: - Name: TestforXcoff
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# CHECK-NEXT: Value: 0x78
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# CHECK-NEXT: Section: .data
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# CHECK-NEXT: Type: 0x0
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# CHECK-NEXT: StorageClass: C_HIDEXT
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# CHECK-NEXT: NumberOfAuxEntries: 1
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## TODO: Dump the string table.
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# CHECK32: --- !XCOFF
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# CHECK32-NEXT: FileHeader:
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# CHECK32-NEXT: MagicNumber: 0x1DF
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# CHECK32-NEXT: NumberOfSections: 2
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# CHECK32-NEXT: CreationTime: 0
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# CHECK32-NEXT: OffsetToSymbolTable: 0x80
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# CHECK32-NEXT: EntriesInSymbolTable: 4
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# CHECK32-NEXT: AuxiliaryHeaderSize: 0
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# CHECK32-NEXT: Flags: 0x0
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# CHECK32-NEXT: Sections:
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# CHECK32-NEXT: - Name: .text
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# CHECK32-NEXT: Address: 0x0
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# CHECK32-NEXT: Size: 0x4
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# CHECK32-NEXT: FileOffsetToData: 0x64
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# CHECK32-NEXT: FileOffsetToRelocations: 0x6C
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# CHECK32-NEXT: FileOffsetToLineNumbers: 0x0
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# CHECK32-NEXT: NumberOfRelocations: 0x1
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# CHECK32-NEXT: NumberOfLineNumbers: 0x0
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# CHECK32-NEXT: Flags: [ STYP_TEXT ]
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# CHECK32-NEXT: SectionData: '00007400'
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# CHECK32-NEXT: Relocations:
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# CHECK32-NEXT: - Address: 0xE
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# CHECK32-NEXT: Symbol: 0x12
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# CHECK32-NEXT: Info: 0xF
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# CHECK32-NEXT: Type: 0x3
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# CHECK32-NEXT: - Name: .data
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# CHECK32-NEXT: Address: 0x4
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# CHECK32-NEXT: Size: 0x4
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# CHECK32-NEXT: FileOffsetToData: 0x68
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# CHECK32-NEXT: FileOffsetToRelocations: 0x76
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# CHECK32-NEXT: FileOffsetToLineNumbers: 0x0
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# CHECK32-NEXT: NumberOfRelocations: 0x1
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# CHECK32-NEXT: NumberOfLineNumbers: 0x0
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# CHECK32-NEXT: Flags: [ STYP_DATA ]
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# CHECK32-NEXT: SectionData: '00007700'
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# CHECK32-NEXT: Relocations:
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# CHECK32-NEXT: - Address: 0x60
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# CHECK32-NEXT: Symbol: 0x8
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# CHECK32-NEXT: Info: 0x1F
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# CHECK32-NEXT: Type: 0x0
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# CHECK32-NEXT: Symbols:
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# CHECK32-NEXT: - Name: TestforXcoff
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# CHECK32-NEXT: Value: 0x0
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# CHECK32-NEXT: Section: N_UNDEF
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# CHECK32-NEXT: Type: 0x0
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# CHECK32-NEXT: StorageClass: C_EXT
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# CHECK32-NEXT: NumberOfAuxEntries: 1
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# CHECK32-NEXT: - Name: .data
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# CHECK32-NEXT: Value: 0x70
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# CHECK32-NEXT: Section: .data
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# CHECK32-NEXT: Type: 0x0
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# CHECK32-NEXT: StorageClass: C_HIDEXT
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# CHECK32-NEXT: NumberOfAuxEntries: 1
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# CHECK64: --- !XCOFF
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# CHECK64-NEXT: FileHeader:
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# CHECK64-NEXT: MagicNumber: 0x1F7
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# CHECK64-NEXT: NumberOfSections: 2
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# CHECK64-NEXT: CreationTime: 0
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# CHECK64-NEXT: OffsetToSymbolTable: 0xCC
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# CHECK64-NEXT: EntriesInSymbolTable: 4
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# CHECK64-NEXT: AuxiliaryHeaderSize: 0
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# CHECK64-NEXT: Flags: 0x0
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# CHECK64-NEXT: Sections:
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# CHECK64-NEXT: - Name: .text
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# CHECK64-NEXT: Address: 0x0
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# CHECK64-NEXT: Size: 0x4
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# CHECK64-NEXT: FileOffsetToData: 0xA8
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# CHECK64-NEXT: FileOffsetToRelocations: 0xB0
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# CHECK64-NEXT: FileOffsetToLineNumbers: 0x0
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# CHECK64-NEXT: NumberOfRelocations: 0x1
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# CHECK64-NEXT: NumberOfLineNumbers: 0x0
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# CHECK64-NEXT: Flags: [ STYP_TEXT ]
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# CHECK64-NEXT: SectionData: '00007400'
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# CHECK64-NEXT: Relocations:
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# CHECK64-NEXT: - Address: 0xE
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# CHECK64-NEXT: Symbol: 0x12
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# CHECK64-NEXT: Info: 0xF
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# CHECK64-NEXT: Type: 0x3
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# CHECK64-NEXT: - Name: .data
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# CHECK64-NEXT: Address: 0x4
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# CHECK64-NEXT: Size: 0x4
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# CHECK64-NEXT: FileOffsetToData: 0xAC
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# CHECK64-NEXT: FileOffsetToRelocations: 0xBE
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# CHECK64-NEXT: FileOffsetToLineNumbers: 0x0
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# CHECK64-NEXT: NumberOfRelocations: 0x1
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# CHECK64-NEXT: NumberOfLineNumbers: 0x0
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# CHECK64-NEXT: Flags: [ STYP_DATA ]
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# CHECK64-NEXT: SectionData: '00007700'
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# CHECK64-NEXT: Relocations:
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# CHECK64-NEXT: - Address: 0x60
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# CHECK64-NEXT: Symbol: 0x8
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# CHECK64-NEXT: Info: 0x1F
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# CHECK64-NEXT: Type: 0x0
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# CHECK64-NEXT: Symbols:
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# CHECK64-NEXT: - Name: TestforXcoff
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# CHECK64-NEXT: Value: 0x0
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# CHECK64-NEXT: Section: N_UNDEF
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# CHECK64-NEXT: Type: 0x0
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# CHECK64-NEXT: StorageClass: C_EXT
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# CHECK64-NEXT: NumberOfAuxEntries: 1
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# CHECK64-NEXT: - Name: .data
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# CHECK64-NEXT: Value: 0x70
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# CHECK64-NEXT: Section: .data
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# CHECK64-NEXT: Type: 0x0
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# CHECK64-NEXT: StorageClass: C_HIDEXT
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# CHECK64-NEXT: NumberOfAuxEntries: 1
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--- !XCOFF
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FileHeader:
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MagicNumber: [[MAGIC]]
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Sections:
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- Name: .text
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Flags: [ STYP_TEXT ]
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SectionData: '00007400'
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Relocations:
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- Address: 0xE
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Symbol: 0x12
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Info: 0xF
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Type: 0x3
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- Name: .data
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Flags: [ STYP_DATA ]
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SectionData: '00007700'
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Relocations:
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- Address: 0x60
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Symbol: 0x8
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Info: 0x1F
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Type: 0x0
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Symbols:
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- Name: TestforXcoff
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Value: 0x0
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Section: N_UNDEF
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Type: 0x0
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StorageClass: C_EXT
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NumberOfAuxEntries: 1
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- Name: .data
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Value: 0x70
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Section: .data
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Type: 0x0
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StorageClass: C_HIDEXT
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NumberOfAuxEntries: 1
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@ -0,0 +1,32 @@
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## Check that obj2yaml reports a suitable error when it encounters
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## invalid content in Section.
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## Error1: failed to get section data.
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# RUN: yaml2obj %s --docnum=1 -o %t1
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# RUN: not obj2yaml %t1 2>&1 | FileCheck %s -DFILE=%t1 --check-prefix=ERROR1
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# ERROR1: The end of the file was unexpectedly encountered
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--- !XCOFF
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FileHeader:
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MagicNumber: 0x01DF
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Sections:
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- SectionData: '00007400'
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FileOffsetToData: 0x70
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## Error2: failed to get relocations.
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# RUN: yaml2obj %s --docnum=2 -o %t2
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# RUN: not obj2yaml %t2 2>&1 | FileCheck %s -DFILE=%t2 --check-prefix=ERROR2
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# ERROR2: The end of the file was unexpectedly encountered
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--- !XCOFF
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FileHeader:
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MagicNumber: 0x01DF
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Sections:
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- NumberOfRelocations: 0x3
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Relocations:
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- Address: 0xE
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Symbol: 0x12
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Info: 0xF
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Type: 0x3
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@ -0,0 +1,30 @@
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## Check that obj2yaml reports a suitable error when it encounters
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## invalid content in Symbol.
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## Error1: failed to get the section name for a symbol.
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# RUN: yaml2obj %s --docnum=1 -o %t1
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# RUN: not obj2yaml %t1 2>&1 | FileCheck %s --check-prefix=ERROR1
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# ERROR1: Invalid section index
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--- !XCOFF
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FileHeader:
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MagicNumber: 0x01DF
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Sections:
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- Name: .text
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Symbols:
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- SectionIndex: 2
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## Error2: failed to get the symbol name.
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# RUN: yaml2obj %s --docnum=2 -o %t2
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# RUN: not obj2yaml %t2 2>&1 | FileCheck %s --check-prefix=ERROR2
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# ERROR2: Invalid data was encountered while parsing the file
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--- !XCOFF
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FileHeader:
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MagicNumber: 0x01DF
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Symbols:
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- Name: nameInStrTbl
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StringTable:
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Length: 0
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@ -9,6 +9,7 @@
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#include "obj2yaml.h"
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#include "llvm/Object/XCOFFObjectFile.h"
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#include "llvm/ObjectYAML/XCOFFYAML.h"
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#include "llvm/Support/Errc.h"
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#include "llvm/Support/YAMLTraits.h"
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using namespace llvm;
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@ -19,38 +20,93 @@ class XCOFFDumper {
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const object::XCOFFObjectFile &Obj;
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XCOFFYAML::Object YAMLObj;
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void dumpHeader();
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std::error_code dumpSymbols();
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Error dumpSections();
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Error dumpSymbols();
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template <typename Shdr, typename Reloc>
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Error dumpSections(ArrayRef<Shdr> Sections);
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public:
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XCOFFDumper(const object::XCOFFObjectFile &obj) : Obj(obj) {}
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std::error_code dump();
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Error dump();
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XCOFFYAML::Object &getYAMLObj() { return YAMLObj; }
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};
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} // namespace
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std::error_code XCOFFDumper::dump() {
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Error XCOFFDumper::dump() {
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dumpHeader();
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if (Error E = dumpSections())
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return E;
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return dumpSymbols();
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}
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void XCOFFDumper::dumpHeader() {
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YAMLObj.Header.Magic = Obj.getMagic();
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YAMLObj.Header.NumberOfSections = Obj.getNumberOfSections();
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YAMLObj.Header.TimeStamp = Obj.getTimeStamp();
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// TODO FIXME only dump 32 bit header for now.
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if (Obj.is64Bit())
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report_fatal_error("64-bit XCOFF files not supported yet.");
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YAMLObj.Header.SymbolTableOffset = Obj.getSymbolTableOffset32();
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YAMLObj.Header.SymbolTableOffset = Obj.is64Bit()
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? Obj.getSymbolTableOffset64()
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: Obj.getSymbolTableOffset32();
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YAMLObj.Header.NumberOfSymTableEntries =
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Obj.getRawNumberOfSymbolTableEntries32();
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Obj.is64Bit() ? Obj.getNumberOfSymbolTableEntries64()
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: Obj.getRawNumberOfSymbolTableEntries32();
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YAMLObj.Header.AuxHeaderSize = Obj.getOptionalHeaderSize();
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YAMLObj.Header.Flags = Obj.getFlags();
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}
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std::error_code XCOFFDumper::dumpSymbols() {
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Error XCOFFDumper::dumpSections() {
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if (Obj.is64Bit())
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return dumpSections<XCOFFSectionHeader64, XCOFFRelocation64>(
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Obj.sections64());
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return dumpSections<XCOFFSectionHeader32, XCOFFRelocation32>(
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Obj.sections32());
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}
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template <typename Shdr, typename Reloc>
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Error XCOFFDumper::dumpSections(ArrayRef<Shdr> Sections) {
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std::vector<XCOFFYAML::Section> &YamlSections = YAMLObj.Sections;
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for (const Shdr &S : Sections) {
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XCOFFYAML::Section YamlSec;
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YamlSec.SectionName = S.getName();
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YamlSec.Address = S.PhysicalAddress;
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YamlSec.Size = S.SectionSize;
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YamlSec.NumberOfRelocations = S.NumberOfRelocations;
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YamlSec.NumberOfLineNumbers = S.NumberOfLineNumbers;
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YamlSec.FileOffsetToData = S.FileOffsetToRawData;
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YamlSec.FileOffsetToRelocations = S.FileOffsetToRelocationInfo;
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YamlSec.FileOffsetToLineNumbers = S.FileOffsetToLineNumberInfo;
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YamlSec.Flags = S.Flags;
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// Dump section data.
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if (S.FileOffsetToRawData) {
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DataRefImpl SectionDRI;
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SectionDRI.p = reinterpret_cast<uintptr_t>(&S);
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Expected<ArrayRef<uint8_t>> SecDataRefOrErr =
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Obj.getSectionContents(SectionDRI);
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if (!SecDataRefOrErr)
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return SecDataRefOrErr.takeError();
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YamlSec.SectionData = SecDataRefOrErr.get();
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}
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// Dump relocations.
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if (S.NumberOfRelocations) {
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auto RelRefOrErr = Obj.relocations<Shdr, Reloc>(S);
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if (!RelRefOrErr)
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return RelRefOrErr.takeError();
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for (const Reloc &R : RelRefOrErr.get()) {
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XCOFFYAML::Relocation YamlRel;
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YamlRel.Type = R.Type;
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YamlRel.Info = R.Info;
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YamlRel.SymbolIndex = R.SymbolIndex;
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YamlRel.VirtualAddress = R.VirtualAddress;
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YamlSec.Relocations.push_back(YamlRel);
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}
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}
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YamlSections.push_back(YamlSec);
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}
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return Error::success();
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}
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Error XCOFFDumper::dumpSymbols() {
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std::vector<XCOFFYAML::Symbol> &Symbols = YAMLObj.Symbols;
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for (const SymbolRef &S : Obj.symbols()) {
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@ -60,7 +116,7 @@ std::error_code XCOFFDumper::dumpSymbols() {
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Expected<StringRef> SymNameRefOrErr = Obj.getSymbolName(SymbolDRI);
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if (!SymNameRefOrErr) {
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return errorToErrorCode(SymNameRefOrErr.takeError());
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return SymNameRefOrErr.takeError();
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}
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Sym.SymbolName = SymNameRefOrErr.get();
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@ -69,7 +125,7 @@ std::error_code XCOFFDumper::dumpSymbols() {
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Expected<StringRef> SectionNameRefOrErr =
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Obj.getSymbolSectionName(SymbolEntRef);
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if (!SectionNameRefOrErr)
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return errorToErrorCode(SectionNameRefOrErr.takeError());
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return SectionNameRefOrErr.takeError();
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Sym.SectionName = SectionNameRefOrErr.get();
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@ -79,15 +135,15 @@ std::error_code XCOFFDumper::dumpSymbols() {
|
|||
Symbols.push_back(Sym);
|
||||
}
|
||||
|
||||
return std::error_code();
|
||||
return Error::success();
|
||||
}
|
||||
|
||||
std::error_code xcoff2yaml(raw_ostream &Out,
|
||||
const object::XCOFFObjectFile &Obj) {
|
||||
XCOFFDumper Dumper(Obj);
|
||||
|
||||
if (std::error_code EC = Dumper.dump())
|
||||
return EC;
|
||||
if (Error E = Dumper.dump())
|
||||
return errorToErrorCode(std::move(E));
|
||||
|
||||
yaml::Output Yout(Out);
|
||||
Yout << Dumper.getYAMLObj();
|
||||
|
|
|
|||
Loading…
Reference in New Issue