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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
// REQUIRES: arm-registered-target
// RUN: llvm-mc -filetype=obj -triple thumbv7-windows-gnu %s -o %t.o
// RUN: llvm-readobj --unwind %t.o | FileCheck --strict-whitespace %s
// CHECK: RuntimeFunction {
// CHECK-NEXT: Function: func0
// CHECK: Prologue [
// CHECK-NEXT: 0xcb ; mov r11, sp
// CHECK-NEXT: 0x95 0x00 ; push.w {r8, r10, r12}
// CHECK-NEXT: 0xf6 0x13 ; vpush {d17-d19}
// CHECK-NEXT: 0xfc ; nop.w
// CHECK-NEXT: 0xf5 0x35 ; vpush {d3-d5}
// CHECK-NEXT: 0xfb ; nop
// CHECK-NEXT: 0xe2 ; vpush {d8-d10}
// CHECK-NEXT: 0x08 ; sub sp, #(8 * 4)
// CHECK-NEXT: 0xd6 ; push {r4-r6, lr}
// CHECK-NEXT: ]
// CHECK-NEXT: EpilogueScopes [
// CHECK-NEXT: EpilogueScope {
// CHECK-NEXT: StartOffset: 15
// CHECK-NEXT: Condition: 14
// CHECK-NEXT: EpilogueStartIndex: 13
// CHECK-NEXT: Opcodes [
// CHECK-NEXT: 0xe2 ; vpop {d8-d10}
// CHECK-NEXT: 0xcb ; mov sp, r11
// CHECK-NEXT: 0x08 ; add sp, #(8 * 4)
// CHECK-NEXT: 0xd6 ; pop {r4-r6, pc}
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK: RuntimeFunction {
// CHECK-NEXT: Function: func1
// CHECK: Prologue [
// CHECK-NEXT: 0xef 0x08 ; str.w lr, [sp, #-32]!
// CHECK-NEXT: 0xd1 ; push {r4-r5}
// CHECK-NEXT: 0xfd ; bx <reg>
// CHECK-NEXT: ]
// CHECK-NEXT: EpilogueScopes [
// CHECK-NEXT: EpilogueScope {
// CHECK-NEXT: StartOffset: 4
// CHECK-NEXT: Condition: 14
// CHECK-NEXT: EpilogueStartIndex: 4
// CHECK-NEXT: Opcodes [
// CHECK-NEXT: 0xef 0x08 ; ldr.w lr, [sp], #32
// CHECK-NEXT: 0xd1 ; pop {r4-r5}
// CHECK-NEXT: 0xfd ; bx <reg>
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK: RuntimeFunction {
// CHECK-NEXT: Function: func2
// CHECK-NEXT: ExceptionRecord:
// CHECK-NEXT: ExceptionData {
// CHECK-NEXT: FunctionLength:
// CHECK-NEXT: Version:
// CHECK-NEXT: ExceptionData: No
// CHECK-NEXT: EpiloguePacked: Yes
// CHECK-NEXT: Fragment: No
// CHECK-NEXT: EpilogueOffset: 0
// CHECK-NEXT: ByteCodeLength:
// CHECK-NEXT: Prologue [
// CHECK-NEXT: 0x04 ; sub sp, #(4 * 4)
// CHECK-NEXT: 0xec 0x80 ; push {r7}
// CHECK-NEXT: 0xc7 ; mov r7, sp
// CHECK-NEXT: 0xfe ; b.w <target>
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: RuntimeFunction {
// CHECK-NEXT: Function: func3
// CHECK-NEXT: ExceptionRecord:
// CHECK-NEXT: ExceptionData {
// CHECK-NEXT: FunctionLength:
// CHECK-NEXT: Version:
// CHECK-NEXT: ExceptionData: No
// CHECK-NEXT: EpiloguePacked: Yes
// CHECK-NEXT: Fragment: Yes
// CHECK-NEXT: EpilogueOffset: 1
// CHECK-NEXT: ByteCodeLength:
// CHECK-NEXT: Prologue [
// CHECK-NEXT: 0x04 ; sub sp, #(4 * 4)
// CHECK-NEXT: 0xdf ; push.w {r4-r11, lr}
// CHECK-NEXT: ]
// CHECK-NEXT: Epilogue [
// CHECK-NEXT: 0xdf ; pop.w {r4-r11, pc}
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: RuntimeFunction {
// CHECK-NEXT: Function: func4
// CHECK-NEXT: ExceptionRecord:
// CHECK-NEXT: ExceptionData {
// CHECK-NEXT: FunctionLength:
// CHECK-NEXT: Version:
// CHECK-NEXT: ExceptionData: No
// CHECK-NEXT: EpiloguePacked: Yes
// CHECK-NEXT: Fragment: No
// CHECK-NEXT: EpilogueOffset: 0
// CHECK-NEXT: ByteCodeLength:
// CHECK-NEXT: Prologue [
// CHECK-NEXT: 0xec 0x50 ; push {r4, r6}
// CHECK-NEXT: 0xb5 0x00 ; push.w {r8, r10, r12, lr}
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: RuntimeFunction {
// CHECK-NEXT: Function: func5
// CHECK-NEXT: ExceptionRecord:
// CHECK-NEXT: ExceptionData {
// CHECK-NEXT: FunctionLength:
// CHECK-NEXT: Version:
// CHECK-NEXT: ExceptionData: No
// CHECK-NEXT: EpiloguePacked: Yes
// CHECK-NEXT: Fragment: No
// CHECK-NEXT: EpilogueOffset: 16
// CHECK-NEXT: ByteCodeLength:
// CHECK-NEXT: Prologue [
// CHECK-NEXT: 0xfa 0x00 0x00 0x20 ; sub.w sp, sp, #(32 * 4)
// CHECK-NEXT: 0xf9 0x00 0x10 ; sub.w sp, sp, #(16 * 4)
// CHECK-NEXT: 0xf8 0x00 0x00 0x08 ; sub sp, sp, #(8 * 4)
// CHECK-NEXT: 0xf7 0x00 0x04 ; sub sp, sp, #(4 * 4)
// CHECK-NEXT: 0xe8 0x02 ; sub.w sp, #(2 * 4)
// CHECK-NEXT: 0xed 0x50 ; push {r4, r6, lr}
// CHECK-NEXT: ]
// CHECK-NEXT: Epilogue [
// CHECK-NEXT: 0xed 0x50 ; pop {r4, r6, pc}
// CHECK-NEXT: ]
// CHECK-NEXT: }
// CHECK-NEXT: }
.thumb
.syntax unified
func0:
push {r4-r6, lr}
sub sp, sp, #32
vpush {d8-d10}
nop
vpush {d3-d5}
nop.w
vpush {d17-d19}
push {r8, r10, r12}
mov r11, sp
nop
vpop {d8-d10}
mov sp, r11
add sp, sp, #32
pop {r4-r6, pc}
func1:
push {r4-r5}
str lr, [sp, #-32]!
nop
ldr lr, [sp], #32
pop {r4-r5}
bx lr
func2:
mov r7, sp
push {r7}
sub sp, sp, #16
nop
add sp, sp, #16
pop {r7}
mov sp, r7
b tailcall
func3:
nop.w
nop
nop
add sp, sp, #16
pop {r4-r11, pc}
func4:
push {r8, r10, r12, lr}
push {r4, r6}
nop
pop {r4, r6}
pop {r8, r10, r12, pc}
func5:
push {r4, r6, lr}
subw sp, sp, #8
sub sp, sp, #16
sub sp, sp, #32
subw sp, sp, #64
subw sp, sp, #128
nop
pop {r4, r6, pc}
.section .pdata,"dr"
.rva func0
.rva .Lunwind_func0
.rva func1
.rva .Lunwind_func1
.rva func2
.rva .Lunwind_func2
.rva func3
.rva .Lunwind_func3
.rva func4
.rva .Lunwind_func4
.rva func5
.rva .Lunwind_func5
.section .xdata,"dr"
.Lunwind_func0:
.byte 0x14, 0x00, 0x80, 0x50
.byte 0x0f, 0x00, 0xe0, 0x0d
.byte 0xcb, 0x95, 0x00, 0xf6
.byte 0x13, 0xfc, 0xf5, 0x35
.byte 0xfb, 0xe2, 0x08, 0xd6
.byte 0xff, 0xe2, 0xcb, 0x08
.byte 0xd6, 0xff, 0x00, 0x00
.Lunwind_func1:
.byte 0x08, 0x00, 0x00, 0x00
.byte 0x01, 0x00, 0x02, 0x00
.byte 0x04, 0x00, 0xe0, 0x04
.byte 0xef, 0x08, 0xd1, 0xfd
.byte 0xef, 0x08, 0xd1, 0xfd
.Lunwind_func2:
.byte 0x09, 0x00, 0x20, 0x20
.byte 0x04, 0xec, 0x80, 0xc7
.byte 0xfe, 0x00, 0x00, 0x00
.Lunwind_func3:
.byte 0x07, 0x00, 0xe0, 0x10
.byte 0x04, 0xdf, 0xff, 0x00
.Lunwind_func4:
.byte 0x07, 0x00, 0x20, 0x20
.byte 0xec, 0x50, 0xb5, 0x00
.byte 0xff, 0x00, 0x00, 0x00
.Lunwind_func5:
.byte 0x0b, 0x00, 0x20, 0x58
.byte 0xfa, 0x00, 0x00, 0x20
.byte 0xf9, 0x00, 0x10, 0xf8
.byte 0x00, 0x00, 0x08, 0xf7
.byte 0x00, 0x04, 0xe8, 0x02
.byte 0xed, 0x50, 0xff, 0x00
|
