1# Copyright 2018-2020 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# Check that the selected stack frame doesn't change after a backtrace.
17
18standard_testfile
19
20if { [prepare_for_testing "failed to prepare" $testfile $srcfile debug] } {
21    return -1
22}
23
24proc check_selected_frame_after_bt { bt_cmd stack_pattern } {
25    global binfile
26
27    clean_restart $binfile
28
29    with_test_prefix $bt_cmd {
30
31	if ![runto_main] then {
32	    fail "can't run to main"
33	    return 0
34	}
35
36	gdb_breakpoint "breakpt"
37	gdb_continue_to_breakpoint "breakpt"
38
39	# Visit each frame in the stack and ensure that the selected
40	# frame doesn't change after executing the backtrace command
41	# in BT_CMD.
42	foreach_with_prefix frame {0 1 2} {
43	    if { $frame == 0 } {
44		gdb_assert {[get_current_frame_number] == $frame} \
45		    "check frame"
46	    } else {
47		gdb_test "frame $frame" "#$frame .*" "select frame"
48	    }
49
50	    gdb_test "$bt_cmd" $stack_pattern \
51		"perform backtrace command"
52
53	    gdb_assert {[get_current_frame_number] == $frame} \
54		"check frame is still selected"
55	}
56    }
57}
58
59check_selected_frame_after_bt "bt" \
60    [multi_line          \
61	 "#0 \[^\n\r\]+" \
62	 "#1 \[^\n\r\]+" \
63	 "#2 \[^\n\r\]+"]
64
65check_selected_frame_after_bt "bt full" \
66    [multi_line          \
67	 "#0 \[^\n\r\]+" \
68	 "No locals\."   \
69	 "#1 \[^\n\r\]+" \
70	 "No locals\."   \
71	 "#2 \[^\n\r\]+" \
72	 "No locals\."]
73