1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
// This test checks that the SEH directives emit the correct unwind data.
// RUN: llvm-mc -triple x86_64-pc-win32 -filetype=obj %s | llvm-readobj -s -u -r | FileCheck %s
// CHECK: Sections [
// CHECK: Section {
// CHECK: Name: .text
// CHECK: RelocationCount: 0
// CHECK: Characteristics [
// CHECK-NEXT: ALIGN_4BYTES
// CHECK-NEXT: CNT_CODE
// CHECK-NEXT: MEM_EXECUTE
// CHECK-NEXT: MEM_READ
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK: Section {
// CHECK: Name: .xdata
// CHECK: RawDataSize: 52
// CHECK: RelocationCount: 4
// CHECK: Characteristics [
// CHECK-NEXT: ALIGN_4BYTES
// CHECK-NEXT: CNT_INITIALIZED_DATA
// CHECK-NEXT: MEM_READ
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK: Section {
// CHECK: Name: .pdata
// CHECK: RelocationCount: 9
// CHECK: Characteristics [
// CHECK-NEXT: ALIGN_4BYTES
// CHECK-NEXT: CNT_INITIALIZED_DATA
// CHECK-NEXT: MEM_READ
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK-NEXT: Relocations [
// CHECK-NEXT: Section (2) .xdata {
// CHECK-NEXT: 0x14 IMAGE_REL_AMD64_ADDR32NB __C_specific_handler
// CHECK-NEXT: 0x20 IMAGE_REL_AMD64_ADDR32NB func
// CHECK-NEXT: 0x24 IMAGE_REL_AMD64_ADDR32NB func
// CHECK-NEXT: 0x28 IMAGE_REL_AMD64_ADDR32NB .xdata
// CHECK-NEXT: }
// CHECK-NEXT: Section (3) .pdata {
// CHECK-NEXT: 0x0 IMAGE_REL_AMD64_ADDR32NB func
// CHECK-NEXT: 0x4 IMAGE_REL_AMD64_ADDR32NB func
// CHECK-NEXT: 0x8 IMAGE_REL_AMD64_ADDR32NB .xdata
// CHECK-NEXT: 0xC IMAGE_REL_AMD64_ADDR32NB func
// CHECK-NEXT: 0x10 IMAGE_REL_AMD64_ADDR32NB func
// CHECK-NEXT: 0x14 IMAGE_REL_AMD64_ADDR32NB .xdata
// CHECK-NEXT: 0x18 IMAGE_REL_AMD64_ADDR32NB smallFunc
// CHECK-NEXT: 0x1C IMAGE_REL_AMD64_ADDR32NB smallFunc
// CHECK-NEXT: 0x20 IMAGE_REL_AMD64_ADDR32NB .xdata
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK: UnwindInformation [
// CHECK-NEXT: RuntimeFunction {
// CHECK-NEXT: StartAddress: [[CodeSect1:[^ ]+]] [[BeginDisp1:(\+0x[A-F0-9]+)?]]
// CHECK-NEXT: EndAddress: [[CodeSect1]] [[EndDisp1:(\+0x[A-F0-9]+)?]]
// CHECK-NEXT: UnwindInfoAddress:
// CHECK-NEXT: UnwindInfo {
// CHECK-NEXT: Version: 1
// CHECK-NEXT: Flags [
// CHECK-NEXT: ExceptionHandler
// CHECK-NEXT: ]
// CHECK-NEXT: PrologSize: 18
// CHECK-NEXT: FrameRegister: RBX
// CHECK-NEXT: FrameOffset: 0x0
// CHECK-NEXT: UnwindCodeCount: 8
// CHECK-NEXT: UnwindCodes [
// CHECK-NEXT: 0x12: SET_FPREG reg=RBX, offset=0x0
// CHECK-NEXT: 0x0F: PUSH_NONVOL reg=RBX
// CHECK-NEXT: 0x0E: SAVE_XMM128 reg=XMM8, offset=0x0
// CHECK-NEXT: 0x09: SAVE_NONVOL reg=RSI, offset=0x10
// CHECK-NEXT: 0x04: ALLOC_SMALL size=24
// CHECK-NEXT: 0x00: PUSH_MACHFRAME errcode=yes
// CHECK-NEXT: ]
// CHECK-NEXT: Handler: __C_specific_handler
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: RuntimeFunction {
// CHECK-NEXT: StartAddress: [[CodeSect2:[^ ]+]] [[BeginDisp2:(\+0x[A-F0-9]+)?]]
// CHECK-NEXT: EndAddress: [[CodeSect2]] [[BeginDisp2:(\+0x[A-F0-9]+)?]]
// CHECK-NEXT: UnwindInfoAddress:
// CHECK-NEXT: UnwindInfo {
// CHECK-NEXT: Version: 1
// CHECK-NEXT: Flags [
// CHECK-NEXT: ChainInfo
// CHECK-NEXT: ]
// CHECK-NEXT: PrologSize: 0
// CHECK-NEXT: FrameRegister: -
// CHECK-NEXT: FrameOffset: -
// CHECK-NEXT: UnwindCodeCount: 0
// CHECK-NEXT: UnwindCodes [
// CHECK-NEXT: ]
// CHECK-NEXT: Chained {
// CHECK-NEXT: StartAddress: [[CodeSect1]] [[BeginDisp1]]
// CHECK-NEXT: EndAddress: [[CodeSect1]] [[EndDisp1]]
// CHECK-NEXT: UnwindInfoAddress:
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: RuntimeFunction {
// CHECK-NEXT: StartAddress: [[CodeSect3:[^ ]+]] [[BeginDisp3:(\+0x[A-F0-9]+)?]]
// CHECK-NEXT: EndAddress: [[CodeSect3]] [[BeginDisp3:(\+0x[A-F0-9]+)?]]
// CHECK-NEXT: UnwindInfoAddress:
// CHECK-NEXT: UnwindInfo {
// CHECK-NEXT: Version: 1
// CHECK-NEXT: Flags [
// CHECK-NEXT: ]
// CHECK-NEXT: PrologSize: 0
// CHECK-NEXT: FrameRegister: -
// CHECK-NEXT: FrameOffset: -
// CHECK-NEXT: UnwindCodeCount: 0
// CHECK-NEXT: UnwindCodes [
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: ]
.text
.globl func
.def func; .scl 2; .type 32; .endef
.seh_proc func
func:
.seh_pushframe @code
subq $24, %rsp
.seh_stackalloc 24
movq %rsi, 16(%rsp)
.seh_savereg %rsi, 16
movups %xmm8, (%rsp)
.seh_savexmm %xmm8, 0
pushq %rbx
.seh_pushreg 3
mov %rsp, %rbx
.seh_setframe 3, 0
.seh_endprologue
.seh_handler __C_specific_handler, @except
.seh_handlerdata
.long 0
.text
.seh_startchained
.seh_endprologue
.seh_endchained
lea (%rbx), %rsp
pop %rbx
addq $24, %rsp
ret
.seh_endproc
// Test emission of small functions.
.globl smallFunc
.def smallFunc; .scl 2; .type 32; .endef
.seh_proc smallFunc
smallFunc:
ret
.seh_endproc
|
