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# Copyright (C) 2016-2023 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 file is part of the GDB testsuite. It tests proper handling for
# breakpoint creation failure.
load_lib gdb-python.exp
require allow_python_tests
standard_testfile
if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
return -1
}
clean_restart "${testfile}"
if ![runto_main] {
return
}
# The following will create a breakpoint Python wrapper whose construction will
# abort: the requested symbol is not defined. GDB should not keep a reference
# to the wrapper; however it used to...
gdb_test "source py-breakpoint-create-fail.py"
# ... and when it did, as a result, the following breakpoint creation (not
# initiated by the Python API) would dereference the already-freed Python
# breakpoint wrapper, resulting in undefined behavior, sometimes observed as a
# gdb crash, and other times causing the next stop to invoke the Python wrapper
# "stop" method for the object that is not supposed to exist.
gdb_test "break foo"
set test "continuing to foo"
gdb_test_multiple "continue" "$test" {
-re "MyBP\.stop was invoked\!.*$gdb_prompt $" {
fail "$test"
}
-re "Continuing.*Breakpoint 2, foo.*$gdb_prompt $" {
pass "$test"
}
}
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