1// This test checks the alignment and padding of the unwind info.
2
3// RUN: llvm-mc -triple x86_64-pc-win32 -filetype=obj %s | llvm-readobj -s -sd -sr -u | FileCheck %s
4
5// CHECK:      Sections [
6// CHECK:        Section {
7// CHECK:          Name: .xdata
8// CHECK:          RawDataSize: 16
9// CHECK:          RelocationCount: 1
10// CHECK:          Characteristics [
11// CHECK-NEXT:       ALIGN_4BYTES
12// CHECK-NEXT:       CNT_INITIALIZED_DATA
13// CHECK-NEXT:       MEM_READ
14// CHECK-NEXT:     ]
15// CHECK:          Relocations [
16// CHECK-NEXT:       [[HandlerDisp:0x[A-F0-9]+]] IMAGE_REL_AMD64_ADDR32NB __C_specific_handler
17// CHECK-NEXT:     ]
18// CHECK:          SectionData (
19// CHECK-NEXT:       0000: 09000100 04220000 00000000 BEBAFECA
20// CHECK-NEXT:     )
21// CHECK-NEXT:   }
22// CHECK-NEXT:   Section {
23// CHECK:          Name: .pdata
24// CHECK:          RawDataSize: 12
25// CHECK:          RelocationCount: 3
26// CHECK:          Characteristics [
27// CHECK-NEXT:       IMAGE_SCN_ALIGN_4BYTES
28// CHECK-NEXT:       IMAGE_SCN_CNT_INITIALIZED_DATA
29// CHECK-NEXT:       IMAGE_SCN_MEM_READ
30// CHECK-NEXT:     ]
31// CHECK:          Relocations [
32// CHECK-NEXT:       [[BeginDisp:0x[A-F0-9]+]] IMAGE_REL_AMD64_ADDR32NB func
33// CHECK-NEXT:       [[EndDisp:0x[A-F0-9]+]] IMAGE_REL_AMD64_ADDR32NB func
34// CHECK-NEXT:       [[UnwindDisp:0x[A-F0-9]+]] IMAGE_REL_AMD64_ADDR32NB .xdata
35// CHECK-NEXT:     ]
36// CHECK:          SectionData (
37// CHECK-NEXT:       0000: FCFFFFFF 05000000 00000000
38// CHECK-NEXT:     )
39// CHECK-NEXT:   }
40// CHECK-NEXT: ]
41// CHECK:      UnwindInformation [
42// CHECK-NEXT:   RuntimeFunction {
43// CHECK-NEXT:     StartAddress: func {{(\+0x[A-F0-9]+ )?}}([[BeginDisp]])
44// CHECK-NEXT:     EndAddress: func {{(\+0x[A-F0-9]+ )?}}([[EndDisp]])
45// CHECK-NEXT:     UnwindInfoAddress: .xdata {{(\+0x[A-F0-9]+ )?}}([[UnwindDisp]])
46// CHECK-NEXT:     UnwindInfo {
47// CHECK-NEXT:       Version: 1
48// CHECK-NEXT:       Flags [
49// CHECK-NEXT:         ExceptionHandler
50// CHECK-NEXT:       ]
51// CHECK-NEXT:       PrologSize: 0
52// CHECK-NEXT:       FrameRegister: -
53// CHECK-NEXT:       FrameOffset: -
54// CHECK-NEXT:       UnwindCodeCount: 1
55// CHECK-NEXT:       UnwindCodes [
56// CHECK-NEXT:         0x04: ALLOC_SMALL size=24
57// CHECK-NEXT:       ]
58// CHECK-NEXT:       Handler: __C_specific_handler ([[HandlerDisp]])
59// CHECK-NEXT:     }
60// CHECK-NEXT:   }
61// CHECK-NEXT: ]
62
63// Generates only one unwind code.
64// Requires padding of the unwind code array.
65    .globl func
66    .def func; .scl 2; .type 32; .endef
67    .seh_proc func
68    subq $24, %rsp
69    .seh_stackalloc 24
70    .seh_handler __C_specific_handler, @except
71    .seh_handlerdata
72    .long 0xcafebabe
73    .text
74    .seh_endprologue
75func:
76    addq $24, %rsp
77    ret
78    .seh_endproc
79