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
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
|
/* This testcase is part of GDB, the GNU debugger.
Copyright 2010-2018 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/>. */
/* The goal of this test is to provide anonymous DW_TAG_structure_type
containing __pfn + __delta (read in by quirk_gcc_member_function_pointer)
before DW_TAG_structure_type of "class C" to exploit the forward reference
through "__pfn" and back from DW_TAG_member "fp" of "class C". As the
compiler may place the DIEs in arbitrary order they are rather prepared as
a .S file.
class C;
typedef int (C::*fp_t) ();
fp_t fp;
class C
{
int (C::*fp) ();
} c; */
.file "member-ptr-forwardref.cc"
.section .debug_abbrev,"",%progbits
.Ldebug_abbrev0:
.section .debug_info,"",%progbits
.Ldebug_info0:
.section .debug_line,"",%progbits
.Ldebug_line0:
.text
.Ltext0:
.globl fp
.data
.align 4
.type fp, %object
.size fp, 8
fp:
.zero 8
.globl c
.align 4
.type c, %object
.size c, 8
c:
.zero 8
.text
.Letext0:
.file 1 "gdb.dwarf2/member-ptr-forwardref.cc"
.section .debug_info
.4byte 0xa9 /* Length of Compilation Unit Info */
.2byte 0x3 /* DWARF version number */
.4byte .Ldebug_abbrev0 /* Offset Into Abbrev. Section */
.byte 0x4 /* Pointer Size (in bytes) */
.uleb128 0x1 /* (DIE (0xb) DW_TAG_compile_unit) */
.4byte .LASF2 /* DW_AT_producer: "GNU C++ 4.4.2 20091222 (Red Hat 4.4.2-20)" */
.byte 0x4 /* DW_AT_language */
.4byte .LASF3 /* DW_AT_name: "gdb.dwarf2/member-ptr-forwardref.cc" */
.4byte .LASF4 /* DW_AT_comp_dir: "gdb/testsuite" */
.4byte .Ltext0 /* DW_AT_low_pc */
.4byte .Letext0 /* DW_AT_high_pc */
.4byte .Ldebug_line0 /* DW_AT_stmt_list */
.uleb128 0x2 /* (DIE (0x25) DW_TAG_typedef) */
.4byte .LASF5 /* DW_AT_name: "fp_t" */
.byte 0x1 /* DW_AT_decl_file (gdb.dwarf2/member-ptr-forwardref.cc) */
.byte 0x13 /* DW_AT_decl_line */
.4byte 0x30 /* DW_AT_type */
.uleb128 0x3 /* (DIE (0x30) DW_TAG_structure_type) */
.byte 0x8 /* DW_AT_byte_size */
.byte 0x1 /* DW_AT_decl_file (gdb.dwarf2/member-ptr-forwardref.cc) */
.byte 0x13 /* DW_AT_decl_line */
.4byte 0x51 /* DW_AT_sibling */
.uleb128 0x4 /* (DIE (0x38) DW_TAG_member) */
.4byte .LASF0 /* DW_AT_name: "__pfn" */
.byte 0x1 /* DW_AT_decl_file (gdb.dwarf2/member-ptr-forwardref.cc) */
.byte 0x13 /* DW_AT_decl_line */
.4byte 0x85 /* DW_AT_type */
.sleb128 0 /* DW_AT_data_member_location */
.uleb128 0x4 /* (DIE (0x44) DW_TAG_member) */
.4byte .LASF1 /* DW_AT_name: "__delta" */
.byte 0x1 /* DW_AT_decl_file (gdb.dwarf2/member-ptr-forwardref.cc) */
.byte 0x13 /* DW_AT_decl_line */
.4byte 0x61 /* DW_AT_type */
.sleb128 4 /* DW_AT_data_member_location */
.byte 0x0 /* end of children of DIE 0x30 */
.uleb128 0x5 /* (DIE (0x51) DW_TAG_subroutine_type) */
.4byte 0x61 /* DW_AT_type */
.4byte 0x61 /* DW_AT_sibling */
.uleb128 0x6 /* (DIE (0x5a) DW_TAG_formal_parameter) */
.4byte 0x68 /* DW_AT_type */
.byte 0x1 /* DW_AT_artificial */
.byte 0x0 /* end of children of DIE 0x51 */
.uleb128 0x7 /* (DIE (0x61) DW_TAG_base_type) */
.byte 0x4 /* DW_AT_byte_size */
.byte 0x5 /* DW_AT_encoding */
.ascii "int\0" /* DW_AT_name */
.uleb128 0x8 /* (DIE (0x68) DW_TAG_pointer_type) */
.byte 0x4 /* DW_AT_byte_size */
.4byte 0x6e /* DW_AT_type */
.uleb128 0x9 /* (DIE (0x6e) DW_TAG_structure_type) */
.ascii "C\0" /* DW_AT_name */
.byte 0x8 /* DW_AT_byte_size */
.byte 0x1 /* DW_AT_decl_file (gdb.dwarf2/member-ptr-forwardref.cc) */
.byte 0x16 /* DW_AT_decl_line */
.4byte 0x85 /* DW_AT_sibling */
.uleb128 0xa /* (DIE (0x78) DW_TAG_member) */
.ascii "fp\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.dwarf2/member-ptr-forwardref.cc) */
.byte 0x17 /* DW_AT_decl_line */
.4byte 0x30 /* DW_AT_type */
.sleb128 0 /* DW_AT_data_member_location */
.byte 0x3 /* DW_AT_accessibility */
.byte 0x0 /* end of children of DIE 0x6e */
.uleb128 0x8 /* (DIE (0x85) DW_TAG_pointer_type) */
.byte 0x4 /* DW_AT_byte_size */
.4byte 0x51 /* DW_AT_type */
.uleb128 0xb /* (DIE (0x8b) DW_TAG_variable) */
.ascii "fp\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.dwarf2/member-ptr-forwardref.cc) */
.byte 0x14 /* DW_AT_decl_line */
.4byte 0x25 /* DW_AT_type */
.byte 0x1 /* DW_AT_external */
.byte 0x5 /* DW_AT_location */
.byte 0x3 /* DW_OP_addr */
.4byte fp
.uleb128 0xb /* (DIE (0x9c) DW_TAG_variable) */
.ascii "c\0" /* DW_AT_name */
.byte 0x1 /* DW_AT_decl_file (gdb.dwarf2/member-ptr-forwardref.cc) */
.byte 0x18 /* DW_AT_decl_line */
.4byte 0x6e /* DW_AT_type */
.byte 0x1 /* DW_AT_external */
.byte 0x5 /* DW_AT_location */
.byte 0x3 /* DW_OP_addr */
.4byte c
.byte 0x0 /* end of children of DIE 0xb */
.section .debug_abbrev
.uleb128 0x1 /* (abbrev code) */
.uleb128 0x11 /* (TAG: DW_TAG_compile_unit) */
.byte 0x1 /* DW_children_yes */
.uleb128 0x25 /* (DW_AT_producer) */
.uleb128 0xe /* (DW_FORM_strp) */
.uleb128 0x13 /* (DW_AT_language) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0xe /* (DW_FORM_strp) */
.uleb128 0x1b /* (DW_AT_comp_dir) */
.uleb128 0xe /* (DW_FORM_strp) */
.uleb128 0x11 /* (DW_AT_low_pc) */
.uleb128 0x1 /* (DW_FORM_addr) */
.uleb128 0x12 /* (DW_AT_high_pc) */
.uleb128 0x1 /* (DW_FORM_addr) */
.uleb128 0x10 /* (DW_AT_stmt_list) */
.uleb128 0x6 /* (DW_FORM_data4) */
.byte 0x0
.byte 0x0
.uleb128 0x2 /* (abbrev code) */
.uleb128 0x16 /* (TAG: DW_TAG_typedef) */
.byte 0x0 /* DW_children_no */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0xe /* (DW_FORM_strp) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.byte 0x0
.byte 0x0
.uleb128 0x3 /* (abbrev code) */
.uleb128 0x13 /* (TAG: DW_TAG_structure_type) */
.byte 0x1 /* DW_children_yes */
.uleb128 0xb /* (DW_AT_byte_size) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x1 /* (DW_AT_sibling) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.byte 0x0
.byte 0x0
.uleb128 0x4 /* (abbrev code) */
.uleb128 0xd /* (TAG: DW_TAG_member) */
.byte 0x0 /* DW_children_no */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0xe /* (DW_FORM_strp) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x38 /* (DW_AT_data_member_location) */
.uleb128 0xd /* (DW_FORM_sdata) */
.byte 0x0
.byte 0x0
.uleb128 0x5 /* (abbrev code) */
.uleb128 0x15 /* (TAG: DW_TAG_subroutine_type) */
.byte 0x1 /* DW_children_yes */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x1 /* (DW_AT_sibling) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.byte 0x0
.byte 0x0
.uleb128 0x6 /* (abbrev code) */
.uleb128 0x5 /* (TAG: DW_TAG_formal_parameter) */
.byte 0x0 /* DW_children_no */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x34 /* (DW_AT_artificial) */
.uleb128 0xc /* (DW_FORM_flag) */
.byte 0x0
.byte 0x0
.uleb128 0x7 /* (abbrev code) */
.uleb128 0x24 /* (TAG: DW_TAG_base_type) */
.byte 0x0 /* DW_children_no */
.uleb128 0xb /* (DW_AT_byte_size) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3e /* (DW_AT_encoding) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.byte 0x0
.byte 0x0
.uleb128 0x8 /* (abbrev code) */
.uleb128 0xf /* (TAG: DW_TAG_pointer_type) */
.byte 0x0 /* DW_children_no */
.uleb128 0xb /* (DW_AT_byte_size) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.byte 0x0
.byte 0x0
.uleb128 0x9 /* (abbrev code) */
.uleb128 0x13 /* (TAG: DW_TAG_structure_type) */
.byte 0x1 /* DW_children_yes */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0xb /* (DW_AT_byte_size) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x1 /* (DW_AT_sibling) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.byte 0x0
.byte 0x0
.uleb128 0xa /* (abbrev code) */
.uleb128 0xd /* (TAG: DW_TAG_member) */
.byte 0x0 /* DW_children_no */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x38 /* (DW_AT_data_member_location) */
.uleb128 0xd /* (DW_FORM_sdata) */
.uleb128 0x32 /* (DW_AT_accessibility) */
.uleb128 0xb /* (DW_FORM_data1) */
.byte 0x0
.byte 0x0
.uleb128 0xb /* (abbrev code) */
.uleb128 0x34 /* (TAG: DW_TAG_variable) */
.byte 0x0 /* DW_children_no */
.uleb128 0x3 /* (DW_AT_name) */
.uleb128 0x8 /* (DW_FORM_string) */
.uleb128 0x3a /* (DW_AT_decl_file) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x3b /* (DW_AT_decl_line) */
.uleb128 0xb /* (DW_FORM_data1) */
.uleb128 0x49 /* (DW_AT_type) */
.uleb128 0x13 /* (DW_FORM_ref4) */
.uleb128 0x3f /* (DW_AT_external) */
.uleb128 0xc /* (DW_FORM_flag) */
.uleb128 0x2 /* (DW_AT_location) */
.uleb128 0xa /* (DW_FORM_block1) */
.byte 0x0
.byte 0x0
.byte 0x0
.section .debug_pubnames,"",%progbits
.4byte 0x1b /* Length of Public Names Info */
.2byte 0x2 /* DWARF Version */
.4byte .Ldebug_info0 /* Offset of Compilation Unit Info */
.4byte 0xad /* Compilation Unit Length */
.4byte 0x8b /* DIE offset */
.ascii "fp\0" /* external name */
.4byte 0x9c /* DIE offset */
.ascii "c\0" /* external name */
.4byte 0x0
.section .debug_pubtypes,"",%progbits
.4byte 0x1d /* Length of Public Type Names Info */
.2byte 0x2 /* DWARF Version */
.4byte .Ldebug_info0 /* Offset of Compilation Unit Info */
.4byte 0xad /* Compilation Unit Length */
.4byte 0x25 /* DIE offset */
.ascii "fp_t\0" /* external name */
.4byte 0x6e /* DIE offset */
.ascii "C\0" /* external name */
.4byte 0x0
.section .debug_str,"MS",%progbits,1
.LASF5:
.string "fp_t"
.LASF2:
.string "GNU C++ 4.4.2 20091222 (Red Hat 4.4.2-20)"
.LASF0:
.string "__pfn"
.LASF4:
.string "gdb/testsuite"
.LASF3:
.string "gdb.dwarf2/member-ptr-forwardref.cc"
.LASF1:
.string "__delta"
.ident "GCC: (GNU) 4.4.2 20091222 (Red Hat 4.4.2-20)"
.section .note.GNU-stack,"",%progbits
|
