binutils-gdb/gdb/testsuite/gdb.python/py-finish-breakpoint-deletion.exp
Johnson Sun 6533cbeeb8 Fix deletion of FinishBreakpoints
Currently, FinishBreakpoints are set at the return address of a frame based on
the `finish' command, and are meant to be temporary breakpoints. However, they
are not being cleaned up after use, as reported in PR python/18655. This was
happening because the disposition of the breakpoint was not being set
correctly.

This commit fixes this issue by correctly setting the disposition in the
post-stop hook of the breakpoint. It also adds a test to ensure this feature
isn't regressed in the future.

Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=18655
2022-11-18 10:50:45 -05:00

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# Copyright (C) 2022 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/>.
# Check that FinishBreakpoints are deleted after use.
load_lib gdb-python.exp
standard_testfile
if {[prepare_for_testing "failed to prepare" $testfile $srcfile]} {
return -1
}
# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }
if ![runto_main] then {
return 0
}
# For remote host testing
set pyfile [gdb_remote_download host ${srcdir}/${subdir}/${testfile}.py]
gdb_test "python print(len(gdb.breakpoints()))" "1" "check default BP count"
gdb_test "source $pyfile" ".*Python script imported.*" \
"import python scripts"
gdb_test "python print(len(gdb.breakpoints()))" "2" "check modified BP count"
gdb_test "continue" "Breakpoint.*at.*" "run until FinishBreakpoint stops"
gdb_test "python print(len(gdb.breakpoints()))" "2" "check BP count"