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1d506c26 | 1 | # Copyright (C) 2021-2024 Free Software Foundation, Inc. |
d52b8007 AB |
2 | |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | import gdb | |
17 | from gdb.unwinder import Unwinder | |
18 | ||
19 | ||
20 | class FrameId(object): | |
21 | def __init__(self, sp, pc): | |
22 | self._sp = sp | |
23 | self._pc = pc | |
24 | ||
25 | @property | |
26 | def sp(self): | |
27 | return self._sp | |
28 | ||
29 | @property | |
30 | def pc(self): | |
31 | return self._pc | |
32 | ||
33 | ||
34 | class TestUnwinder(Unwinder): | |
35 | def __init__(self): | |
36 | Unwinder.__init__(self, "show level") | |
37 | ||
38 | def __call__(self, pending_frame): | |
39 | pc_desc = pending_frame.architecture().registers().find("pc") | |
40 | pc = pending_frame.read_register(pc_desc) | |
41 | ||
42 | block = gdb.block_for_pc(int(pc)) | |
43 | if block is None: | |
44 | return None | |
45 | func = block.function | |
46 | if func is None: | |
47 | return None | |
48 | ||
49 | print("Func %s, Level %d" % (str(func), pending_frame.level())) | |
50 | ||
51 | # This unwinder never claims any frames. | |
52 | return None | |
53 | ||
54 | ||
55 | gdb.unwinder.register_unwinder(None, TestUnwinder(), True) |