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42a4f53d | 1 | # Copyright (C) 2016-2019 Free Software Foundation, Inc. |
f4952523 PMR |
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 | # This file is part of the GDB testsuite. It tests proper handling for | |
17 | # breakpoint creation failure. | |
18 | ||
19 | load_lib gdb-python.exp | |
20 | ||
21 | standard_testfile | |
22 | ||
5b362f04 | 23 | if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } { |
f4952523 PMR |
24 | return -1 |
25 | } | |
26 | ||
27 | # Skip all tests if Python scripting is not enabled. | |
28 | if { [skip_python_tests] } { continue } | |
29 | ||
30 | clean_restart "${testfile}" | |
31 | if ![runto_main] { | |
32 | perror "could not run to main" | |
33 | continue | |
34 | } | |
35 | ||
36 | # The following will create a breakpoint Python wrapper whose construction will | |
37 | # abort: the requested symbol is not defined. GDB should not keep a reference | |
38 | # to the wrapper; however it used to... | |
39 | gdb_test "source py-breakpoint-create-fail.py" | |
40 | ||
41 | # ... and when it did, as a result, the following breakpoint creation (not | |
42 | # initiated by the Python API) would dereference the already-freed Python | |
43 | # breakpoint wrapper, resulting in undefined behavior, sometimes observed as a | |
44 | # gdb crash, and other times causing the next stop to invoke the Python wrapper | |
45 | # "stop" method for the object that is not supposed to exist. | |
46 | gdb_test "break foo" | |
47 | ||
48 | set test "continuing to foo" | |
49 | gdb_test_multiple "continue" "$test" { | |
50 | -re "MyBP\.stop was invoked\!.*$gdb_prompt $" { | |
51 | fail "$test" | |
52 | } | |
53 | -re "Continuing.*Breakpoint 2, foo.*$gdb_prompt $" { | |
54 | pass "$test" | |
55 | } | |
56 | } |