TheRock/compiler/amd-llvm/llvm/test/tools/llvm-objdump/COFF/win64-unwindv3-handler-odd-payload.yaml

# RUN: yaml2obj %s -o %t.exe
# RUN: llvm-objdump --unwind-info %t.exe | FileCheck %s

# T18: V3 with EHANDLER and odd PayloadWords.
#
# When PayloadWords is odd, the payload region occupies 4 + odd*2 bytes,
# which is not a multiple of 4. The V3 spec locates the handler RVA at
#   handler_offset = ALIGN_UP(sizeof(UNWIND_INFO_V3) + PayloadWords * 2, 4)
# so the encoder emits 2 trailing zero padding bytes between the payload
# and the handler. The decoder must therefore round up to the next 4-byte
# boundary when looking for the handler.
#
# .xdata hex breakdown (PayloadWords=3, payload=6 bytes, padded to 8):
# Byte 0: 0x0B  (Version=3, Flags=1 (UNW_FLAG_EHANDLER))
# Byte 1: 0x07  (SizeOfProlog=7)
# Byte 2: 0x03  (PayloadWords=3 words -> 6 bytes payload)
# Byte 3: 0x02  (NumberOfOps=2, NumberOfEpilogs=0)
# +0: 07        Prolog IP offset[0]: +7
# +1: 00        Prolog IP offset[1]: +0
# +2: 38        WOD pool[0]: WOD_ALLOC_SMALL Size=32
# +3: 34        WOD pool[1]: WOD_PUSH RSI
# +4: 00 00     Unused pool tail (only 2 WODs referenced by NumberOfOps=2)
# +6: 00 00     Padding: handler_offset = ALIGN_UP(4+6, 4) = 12
# Handler RVA at file offset 0xC: 00 10 00 00 = 0x1000

# CHECK-LABEL:  Unwind info:
# CHECK-EMPTY:
# CHECK-NEXT:   Function Table:
# CHECK-NEXT:     Start Address: 0x1000
# CHECK-NEXT:     End Address: 0x1010
# CHECK-NEXT:     Unwind Info Address: 0x2000
# CHECK-NEXT:       Version: 3
# CHECK-NEXT:       Flags: 0x1 UNW_ExceptionHandler
# CHECK-NEXT:       Size of prolog: 0x7
# CHECK-NEXT:       PayloadWords: 3
# CHECK-NEXT:       NumberOfOps: 2
# CHECK-NEXT:       NumberOfEpilogs: 0
# CHECK-NEXT:       Prolog [2 ops]:
# CHECK-NEXT:         [0] IP +0x0007: WOD_ALLOC_SMALL Size=0x20
# CHECK-NEXT:         [1] IP +0x0000: WOD_PUSH Reg=RSI
# CHECK-NEXT:       Handler: 0x1000

--- !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:     16
    SectionData:     '00000000000000000000000000000000'
  - Name:            .xdata
    Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
    VirtualAddress:  8192
    VirtualSize:     16
    SectionData:     '0B070302070038340000000000100000'
  - Name:            .pdata
    Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ ]
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    VirtualSize:     12
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symbols:
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    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_STATIC
...