bb94611d65
When loading split debug files for PE/COFF executables (produced with `objcopy --only-keep-debug`), the tables or directories in such files may point to data inside sections that may have been stripped. COFFObjectFile shall detect and gracefully handle this, to allow the object file be loaded without considering these tables or directories. This is required for LLDB to load these files for use as debug symbols. COFFObjectFile shall also check these pointers more carefully to account for cases in which the section contains less raw data than the size given by VirtualSize, to prevent going out of bounds. This commit also changes COFFDump in llvm-objdump to reuse the pointers that are already range-checked in COFFObjectFile. This fixes a crash when trying to dump the TLS directory from a stripped file. Fixes https://github.com/mstorsjo/llvm-mingw/issues/284 Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D126898
110 lines
3.5 KiB
YAML
110 lines
3.5 KiB
YAML
--- !COFF
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OptionalHeader:
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AddressOfEntryPoint: 4512
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ImageBase: 6442450944
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SectionAlignment: 4096
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FileAlignment: 512
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MajorOperatingSystemVersion: 6
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MinorOperatingSystemVersion: 0
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MajorImageVersion: 0
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MinorImageVersion: 0
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MajorSubsystemVersion: 6
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MinorSubsystemVersion: 0
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Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
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DLLCharacteristics: [ IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA, IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE, IMAGE_DLL_CHARACTERISTICS_NX_COMPAT ]
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SizeOfStackReserve: 1048576
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SizeOfStackCommit: 4096
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SizeOfHeapReserve: 1048576
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SizeOfHeapCommit: 4096
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ExportTable:
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RelativeVirtualAddress: 6962976
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Size: 75
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ImportTable:
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RelativeVirtualAddress: 6963051
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Size: 420
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ResourceTable:
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RelativeVirtualAddress: 0
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Size: 0
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ExceptionTable:
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RelativeVirtualAddress: 6995968
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Size: 1812
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CertificateTable:
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RelativeVirtualAddress: 0
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Size: 0
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BaseRelocationTable:
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RelativeVirtualAddress: 7004160
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Size: 156
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Debug:
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RelativeVirtualAddress: 6987776
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Size: 28
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Architecture:
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RelativeVirtualAddress: 0
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Size: 0
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GlobalPtr:
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RelativeVirtualAddress: 0
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Size: 0
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TlsTable:
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RelativeVirtualAddress: 6962168
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Size: 40
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LoadConfigTable:
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RelativeVirtualAddress: 0
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Size: 0
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BoundImport:
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RelativeVirtualAddress: 0
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Size: 0
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IAT:
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RelativeVirtualAddress: 6965496
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Size: 2024
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DelayImportDescriptor:
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RelativeVirtualAddress: 0
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Size: 0
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ClrRuntimeHeader:
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RelativeVirtualAddress: 0
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Size: 0
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header:
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Machine: IMAGE_FILE_MACHINE_AMD64
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Characteristics: [ IMAGE_FILE_EXECUTABLE_IMAGE, IMAGE_FILE_LARGE_ADDRESS_AWARE, IMAGE_FILE_DLL ]
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sections:
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- Name: .text
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Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
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VirtualAddress: 4096
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VirtualSize: 59030
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SectionData: ''
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- Name: .rdata
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
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VirtualAddress: 65536
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VirtualSize: 6919008
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SectionData: ''
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- Name: .buildid
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
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VirtualAddress: 6987776
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VirtualSize: 53
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SectionData: 00000000A9D795620000000002000000190000001CA06A001C040000525344535450075756EAA5DB4C4C44205044422E0100000000
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- Name: .data
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
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VirtualAddress: 6991872
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VirtualSize: 1960
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SectionData: ''
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- Name: .pdata
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
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VirtualAddress: 6995968
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VirtualSize: 1812
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SectionData: ''
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- Name: .tls
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
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VirtualAddress: 7000064
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VirtualSize: 16
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SectionData: ''
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- Name: .reloc
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
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VirtualAddress: 7004160
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VirtualSize: 156
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SectionData: ''
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- Name: .debug_info
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Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ ]
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VirtualAddress: 7008256
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VirtualSize: 64
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SectionData: DEADBEEFBAADF00D
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symbols: []
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...
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