# RUN: yaml2obj %s -o %t.exe # RUN: llvm-objdump --unwind-info %t.exe | FileCheck %s ## T15: V3 with UNW_FLAG_LARGE set. ## SizeOfProlog is a 16-bit composite (low byte in the header, high byte in ## the UNWIND_INFO_LARGE_V3 extension which is part of the payload), and ## prolog IP offsets are 16-bit. ## ## .xdata hex breakdown: ## Byte 0: 0x43 (Version=3, Flags=0x08=UNW_FlagLarge) ## Byte 1: 0x20 (SizeOfProlog low byte: 0x20) ## Byte 2: 0x04 (PayloadWords=4 words -> 8 bytes payload, includes LARGE byte) ## Byte 3: 0x02 (NumberOfOps=2, NumberOfEpilogs=0) ## Payload (8 bytes): ## +0: 01 UNWIND_INFO_LARGE_V3: SizeOfPrologHighByte=1 (combined=0x0120=288) ## +1,+2: 10 01 Prolog IP offset[0]: 0x0110 (16-bit LE) ## +3,+4: 00 00 Prolog IP offset[1]: 0x0000 (16-bit LE) ## +5: 38 WOD pool[0]: WOD_ALLOC_SMALL Size=(3+1)*8=32 ## +6: 3C WOD pool[1]: WOD_PUSH RDI (reg=7: (7<<3)|4=0x3C) ## +7: 00 Padding to PayloadWords*2 boundary # CHECK-LABEL: Unwind info: # CHECK-EMPTY: # CHECK-NEXT: Function Table: # CHECK-NEXT: Start Address: 0x1000 # CHECK-NEXT: End Address: 0x1200 # CHECK-NEXT: Unwind Info Address: 0x2000 # CHECK-NEXT: Version: 3 # CHECK-NEXT: Flags: 0x8 UNW_FlagLarge # CHECK-NEXT: Size of prolog: 0x120 # CHECK-NEXT: PayloadWords: 4 # CHECK-NEXT: NumberOfOps: 2 # CHECK-NEXT: NumberOfEpilogs: 0 # CHECK-NEXT: Prolog [2 ops]: # CHECK-NEXT: [0] IP +0x0110: WOD_ALLOC_SMALL Size=0x20 # CHECK-NEXT: [1] IP +0x0000: WOD_PUSH Reg=RDI --- !COFF OptionalHeader: AddressOfEntryPoint: 4096 ImageBase: 0 SectionAlignment: 4096 FileAlignment: 512 MajorOperatingSystemVersion: 6 MinorOperatingSystemVersion: 0 MajorImageVersion: 0 MinorImageVersion: 0 MajorSubsystemVersion: 6 MinorSubsystemVersion: 0 Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI DLLCharacteristics: [ IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA, IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE, IMAGE_DLL_CHARACTERISTICS_NX_COMPAT ] SizeOfStackReserve: 1048576 SizeOfStackCommit: 4096 SizeOfHeapReserve: 1048576 SizeOfHeapCommit: 4096 ExportTable: RelativeVirtualAddress: 0 Size: 0 ImportTable: RelativeVirtualAddress: 0 Size: 0 ResourceTable: RelativeVirtualAddress: 0 Size: 0 ExceptionTable: RelativeVirtualAddress: 12288 Size: 12 CertificateTable: RelativeVirtualAddress: 0 Size: 0 BaseRelocationTable: RelativeVirtualAddress: 0 Size: 0 Debug: RelativeVirtualAddress: 0 Size: 0 Architecture: RelativeVirtualAddress: 0 Size: 0 GlobalPtr: RelativeVirtualAddress: 0 Size: 0 TlsTable: RelativeVirtualAddress: 0 Size: 0 LoadConfigTable: RelativeVirtualAddress: 0 Size: 0 BoundImport: RelativeVirtualAddress: 0 Size: 0 IAT: RelativeVirtualAddress: 0 Size: 0 DelayImportDescriptor: RelativeVirtualAddress: 0 Size: 0 ClrRuntimeHeader: RelativeVirtualAddress: 0 Size: 0 header: Machine: IMAGE_FILE_MACHINE_AMD64 Characteristics: [ IMAGE_FILE_EXECUTABLE_IMAGE, IMAGE_FILE_LARGE_ADDRESS_AWARE ] sections: - Name: .text Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ] VirtualAddress: 4096 VirtualSize: 512 SectionData: '00000000000000000000000000000000' - Name: .xdata Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ] VirtualAddress: 8192 VirtualSize: 12 SectionData: '432004020110010000383C00' - Name: .pdata Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ] VirtualAddress: 12288 VirtualSize: 12 SectionData: '001000000012000000200000' symbols: - Name: .text Value: 0 SectionNumber: 1 SimpleType: IMAGE_SYM_TYPE_NULL ComplexType: IMAGE_SYM_DTYPE_NULL StorageClass: IMAGE_SYM_CLASS_STATIC - Name: .xdata Value: 0 SectionNumber: 2 SimpleType: IMAGE_SYM_TYPE_NULL ComplexType: IMAGE_SYM_DTYPE_NULL StorageClass: IMAGE_SYM_CLASS_STATIC - Name: .pdata Value: 0 SectionNumber: 3 SimpleType: IMAGE_SYM_TYPE_NULL ComplexType: IMAGE_SYM_DTYPE_NULL StorageClass: IMAGE_SYM_CLASS_STATIC ...