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2.7 KiB

// This test checks the alignment and padding of the unwind info.
// RUN: llvm-mc -triple x86_64-pc-win32 -filetype=obj %s | llvm-readobj -S --sd --sr -u - | FileCheck %s
// CHECK: Sections [
// CHECK: Section {
// CHECK: Name: .xdata
// CHECK: RawDataSize: 16
// CHECK: RelocationCount: 1
// CHECK: Characteristics [
// CHECK-NEXT: ALIGN_4BYTES
// CHECK-NEXT: CNT_INITIALIZED_DATA
// CHECK-NEXT: MEM_READ
// CHECK-NEXT: ]
// CHECK: Relocations [
// CHECK-NEXT: [[HandlerDisp:0x[A-F0-9]+]] IMAGE_REL_AMD64_ADDR32NB __C_specific_handler
// CHECK-NEXT: ]
// CHECK: SectionData (
// CHECK-NEXT: 0000: 09000100 04220000 00000000 BEBAFECA
// CHECK-NEXT: )
// CHECK-NEXT: }
// CHECK-NEXT: Section {
// CHECK: Name: .pdata
// CHECK: RawDataSize: 12
// CHECK: RelocationCount: 3
// CHECK: Characteristics [
// CHECK-NEXT: IMAGE_SCN_ALIGN_4BYTES
// CHECK-NEXT: IMAGE_SCN_CNT_INITIALIZED_DATA
// CHECK-NEXT: IMAGE_SCN_MEM_READ
// CHECK-NEXT: ]
// CHECK: Relocations [
// CHECK-NEXT: [[BeginDisp:0x[A-F0-9]+]] IMAGE_REL_AMD64_ADDR32NB func
// CHECK-NEXT: [[EndDisp:0x[A-F0-9]+]] IMAGE_REL_AMD64_ADDR32NB func
// CHECK-NEXT: [[UnwindDisp:0x[A-F0-9]+]] IMAGE_REL_AMD64_ADDR32NB .xdata
// CHECK-NEXT: ]
// CHECK: SectionData (
// CHECK-NEXT: 0000: FCFFFFFF 05000000 00000000
// CHECK-NEXT: )
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK: UnwindInformation [
// CHECK-NEXT: RuntimeFunction {
// CHECK-NEXT: StartAddress: func {{(\+0x[A-F0-9]+ )?}}([[BeginDisp]])
// CHECK-NEXT: EndAddress: func {{(\+0x[A-F0-9]+ )?}}([[EndDisp]])
// CHECK-NEXT: UnwindInfoAddress: .xdata {{(\+0x[A-F0-9]+ )?}}([[UnwindDisp]])
// CHECK-NEXT: UnwindInfo {
// CHECK-NEXT: Version: 1
// CHECK-NEXT: Flags [
// CHECK-NEXT: ExceptionHandler
// CHECK-NEXT: ]
// CHECK-NEXT: PrologSize: 0
// CHECK-NEXT: FrameRegister: -
// CHECK-NEXT: FrameOffset: -
// CHECK-NEXT: UnwindCodeCount: 1
// CHECK-NEXT: UnwindCodes [
// CHECK-NEXT: 0x04: ALLOC_SMALL size=24
// CHECK-NEXT: ]
// CHECK-NEXT: Handler: __C_specific_handler ([[HandlerDisp]])
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: ]
// Generates only one unwind code.
// Requires padding of the unwind code array.
.globl func
.def func; .scl 2; .type 32; .endef
.seh_proc func
subq $24, %rsp
.seh_stackalloc 24
.seh_handler __C_specific_handler, @except
.seh_handlerdata
.long 0xcafebabe
.text
.seh_endprologue
func:
addq $24, %rsp
ret
.seh_endproc