py-finish-breakpoint2.exp revision 1.1.1.9 
1# Copyright (C) 2011-2024 Free Software Foundation, Inc.
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 the mechanism
17# exposing values to Python.
18
19load_lib gdb-python.exp
20
21require allow_python_tests
22
23standard_testfile .cc
24
25if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
26    return -1
27}
28
29if {![runto_main]} {
30    return 0
31}
32
33set pyfile [gdb_remote_download host \
34		${srcdir}/${subdir}/${testfile}.py]
35
36#
37# Check FinishBreakpoints against C++ exceptions
38#
39
40gdb_breakpoint [gdb_get_line_number "Break before exception"]
41gdb_breakpoint [gdb_get_line_number "Break after exception 2"]
42
43gdb_test "source $pyfile" ".*Python script imported.*" \
44         "import python scripts"
45
46gdb_breakpoint "throw_exception_1"
47
48#
49# Part 1.
50#
51
52gdb_test "continue" "Breakpoint .*throw_exception_1.*" "run to exception 1"
53
54# Count breakpoints before setting finishbreakpoint.
55gdb_test "python print (len(gdb.breakpoints()))" "4" "check BP count"
56
57gdb_test "python ExceptionFinishBreakpoint(gdb.newest_frame())" \
58    "init ExceptionFinishBreakpoint" "set FinishBP after the exception"
59
60gdb_test "continue" "Break before exception.*" \
61    "break before exception"
62
63set need_continue 0
64gdb_test_multiple "continue" "finishBP out-of-scope" {
65    -re -wrap "exception did not finish.*" {
66	# Out-of-scope.  For instance on x86_64 with unix/-m32.
67	pass $gdb_test_name
68    }
69    -re -wrap "stopped at ExceptionFinishBreakpoint.*" {
70	# Triggered despite the fact that the function call never finished.
71	# It just so happens to be that the frame return address at which the
72	# breakpoint is set, is also the first instruction after the exception
73	# has been handled.  For instance on x86_64 with unix/-m64.
74	kfail python/29909 $gdb_test_name
75	set need_continue 1
76    }
77}
78
79# Count breakpoints, check that the finishbreakpoint has been removed.
80gdb_test "python print (len(gdb.breakpoints()))" "4" "check finish BP removal"
81
82#
83# Part 2.
84#
85
86if { $need_continue } {
87    gdb_test "continue" ".*Breakpoint.* throw_exception_1.*" \
88	"continue to second exception"
89}
90gdb_test "python ExceptionFinishBreakpoint(gdb.newest_frame())" \
91    "init ExceptionFinishBreakpoint" "set FinishBP after the exception again"
92
93gdb_test "continue" "Break before exception.*" \
94    "break before exception again"
95
96gdb_test "continue" ".*exception did not finish.*" "FinishBreakpoint with exception thrown not caught"
97