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
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
/*
Copyright 2009, 2010, 2011 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* This was compiled from a trivial program just to test the
DW_OP_call_frame_cfa operator:
int func (int arg) {
return arg + 23;
}
int main(int argc, char *argv[]) {
func (77);
}
*/
.file "q.c"
.section .debug_abbrev,"",@progbits
.Ldebug_abbrev0:
.section .debug_info,"",@progbits
.Ldebug_info0:
.section .debug_line,"",@progbits
.Ldebug_line0:
.text
.Ltext0:
.globl func
.type func, @function
func:
.LFB0:
.file 1 "q.c"
.loc 1 2 0
.cfi_startproc
pushl %ebp
.cfi_def_cfa_offset 8
movl %esp, %ebp
.cfi_offset 5, -8
.cfi_def_cfa_register 5
.loc 1 3 0
movl 8(%ebp), %eax
addl $23, %eax
.loc 1 4 0
popl %ebp
.cfi_restore 5
.cfi_def_cfa 4, 4
ret
.cfi_endproc
.LFE0:
.size func, .-func
.globl _start
.type _start, @function
_start:
.LFB1:
.loc 1 6 0
.cfi_startproc
pushl %ebp
.cfi_def_cfa_offset 8
movl %esp, %ebp
.cfi_offset 5, -8
.cfi_def_cfa_register 5
subl $4, %esp
.loc 1 7 0
movl $77, (%esp)
call func
.loc 1 8 0
leave
.cfi_restore 5
.cfi_def_cfa 4, 4
ret
.cfi_endproc
.LFE1:
.size _start, .-_start
.Letext0:
.section .debug_info
.long 0x9e
.value 0x3
.long .Ldebug_abbrev0
.byte 0x4
.uleb128 0x1
.long .LASF5
.byte 0x1
.string "q.c"
.long .LASF6
.long .Ltext0
.long .Letext0
.long .Ldebug_line0
.uleb128 0x2
.byte 0x1
.long .LASF0
.byte 0x1
.byte 0x1
.byte 0x1
.long 0x4f
.long .LFB0
.long .LFE0
.byte 0x1
.byte 0x9c
.long 0x4f
.uleb128 0x3
.string "arg"
.byte 0x1
.byte 0x1
.long 0x4f
.byte 0x2
.byte 0x91
.sleb128 0
.byte 0x0
.uleb128 0x4
.byte 0x4
.byte 0x5
.string "int"
.uleb128 0x2
.byte 0x1
.long .LASF1
.byte 0x1
.byte 0x6
.byte 0x1
.long 0x4f
.long .LFB1
.long .LFE1
.byte 0x1
.byte 0x9c
.long 0x8e
.uleb128 0x5
.long .LASF2
.byte 0x1
.byte 0x6
.long 0x4f
.byte 0x2
.byte 0x91
.sleb128 0
.uleb128 0x5
.long .LASF3
.byte 0x1
.byte 0x6
.long 0x8e
.byte 0x2
.byte 0x91
.sleb128 4
.byte 0x0
.uleb128 0x6
.byte 0x4
.long 0x94
.uleb128 0x6
.byte 0x4
.long 0x9a
.uleb128 0x7
.byte 0x1
.byte 0x6
.long .LASF4
.byte 0x0
.section .debug_abbrev
.uleb128 0x1
.uleb128 0x11
.byte 0x1
.uleb128 0x25
.uleb128 0xe
.uleb128 0x13
.uleb128 0xb
.uleb128 0x3
.uleb128 0x8
.uleb128 0x1b
.uleb128 0xe
.uleb128 0x11
.uleb128 0x1
.uleb128 0x12
.uleb128 0x1
.uleb128 0x10
.uleb128 0x6
.byte 0x0
.byte 0x0
.uleb128 0x2
.uleb128 0x2e
.byte 0x1
.uleb128 0x3f
.uleb128 0xc
.uleb128 0x3
.uleb128 0xe
.uleb128 0x3a
.uleb128 0xb
.uleb128 0x3b
.uleb128 0xb
.uleb128 0x27
.uleb128 0xc
.uleb128 0x49
.uleb128 0x13
.uleb128 0x11
.uleb128 0x1
.uleb128 0x12
.uleb128 0x1
.uleb128 0x40
.uleb128 0xa
.uleb128 0x1
.uleb128 0x13
.byte 0x0
.byte 0x0
.uleb128 0x3
.uleb128 0x5
.byte 0x0
.uleb128 0x3
.uleb128 0x8
.uleb128 0x3a
.uleb128 0xb
.uleb128 0x3b
.uleb128 0xb
.uleb128 0x49
.uleb128 0x13
.uleb128 0x2
.uleb128 0xa
.byte 0x0
.byte 0x0
.uleb128 0x4
.uleb128 0x24
.byte 0x0
.uleb128 0xb
.uleb128 0xb
.uleb128 0x3e
.uleb128 0xb
.uleb128 0x3
.uleb128 0x8
.byte 0x0
.byte 0x0
.uleb128 0x5
.uleb128 0x5
.byte 0x0
.uleb128 0x3
.uleb128 0xe
.uleb128 0x3a
.uleb128 0xb
.uleb128 0x3b
.uleb128 0xb
.uleb128 0x49
.uleb128 0x13
.uleb128 0x2
.uleb128 0xa
.byte 0x0
.byte 0x0
.uleb128 0x6
.uleb128 0xf
.byte 0x0
.uleb128 0xb
.uleb128 0xb
.uleb128 0x49
.uleb128 0x13
.byte 0x0
.byte 0x0
.uleb128 0x7
.uleb128 0x24
.byte 0x0
.uleb128 0xb
.uleb128 0xb
.uleb128 0x3e
.uleb128 0xb
.uleb128 0x3
.uleb128 0xe
.byte 0x0
.byte 0x0
.byte 0x0
.section .debug_pubnames,"",@progbits
.long 0x20
.value 0x2
.long .Ldebug_info0
.long 0xa2
.long 0x25
.string "func"
.long 0x56
.string "main"
.long 0x0
.section .debug_aranges,"",@progbits
.long 0x1c
.value 0x2
.long .Ldebug_info0
.byte 0x4
.byte 0x0
.value 0x0
.value 0x0
.long .Ltext0
.long .Letext0-.Ltext0
.long 0x0
.long 0x0
.section .debug_str,"MS",@progbits,1
.LASF5:
.string "GNU C 4.5.0 20090810 (experimental) [trunk revision 150633]"
.LASF2:
.string "argc"
.LASF6:
.string "/tmp"
.LASF0:
.string "func"
.LASF3:
.string "argv"
.LASF1:
.string "main"
.LASF4:
.string "char"
.ident "GCC: (GNU) 4.5.0 20090810 (experimental) [trunk revision 150633]"
.section .note.GNU-stack,"",@progbits
|
