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1e973570 PA |
1 | # Copyright (C) 2014 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 | standard_testfile | |
17 | ||
18 | if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug] == -1} { | |
19 | return -1 | |
20 | } | |
21 | ||
22 | # Test throwing an error while GDB is handling a target event. We use | |
23 | # a ctrl-c/quit in a pagination prompt to emulate an error. COMMAND | |
24 | # is either "continue" or "wrapcont". The latter is a continue issued | |
25 | # from a user-defined command. That exercises the case of the | |
26 | # interpreter forced sync, which was the case that originally had a | |
27 | # bug. | |
28 | ||
29 | proc cancel_pagination_in_target_event { command } { | |
30 | global binfile srcfile | |
31 | global gdb_prompt pagination_prompt | |
32 | ||
33 | set testline [gdb_get_line_number "after sleep"] | |
34 | ||
35 | with_test_prefix "ctrlc target event: $command" { | |
36 | clean_restart $binfile | |
37 | ||
38 | if ![runto_main] then { | |
39 | fail "Can't run to main" | |
40 | return 0 | |
41 | } | |
42 | ||
43 | gdb_test "b $srcfile:$testline" \ | |
44 | "Breakpoint .*$srcfile, line $testline.*" \ | |
45 | "set breakpoint" | |
46 | ||
47 | gdb_test_no_output "set height 2" | |
48 | ||
49 | if { $command == "wrapcont" } { | |
50 | gdb_test_multiple "define wrapcont" "define user command: wrapcont" { | |
51 | -re "Type commands for definition of \"wrapcont\".\r\nEnd with a line saying just \"end\".\r\n>$" { | |
52 | # Note that "Continuing." is ommitted when | |
53 | # "continue" is issued from a user-defined | |
54 | # command. Issue it ourselves. | |
55 | gdb_test "echo Continuing\.\ncontinue\nend" "" \ | |
56 | "define user command: wrapcont" | |
57 | } | |
58 | } | |
59 | } | |
60 | ||
61 | # Wait for pagination prompt after the "Continuing" line, | |
62 | # indicating the program was running and then stopped. | |
63 | set saw_continuing 0 | |
64 | set test "continue to pagination" | |
65 | gdb_test_multiple "$command" $test { | |
66 | -re "$pagination_prompt$" { | |
67 | if {$saw_continuing} { | |
68 | pass $test | |
69 | } else { | |
70 | send_gdb "\n" | |
71 | exp_continue | |
72 | } | |
73 | } | |
74 | -re "Continuing" { | |
75 | set saw_continuing 1 | |
76 | exp_continue | |
77 | } | |
1e973570 PA |
78 | } |
79 | ||
80 | # We're now stopped in a pagination query while handling a | |
81 | # target event (printing where the program stopped). Quitting | |
82 | # the pagination should result in only one prompt being | |
83 | # output. | |
84 | send_gdb "\003p 1\n" | |
85 | ||
c3f814a1 PA |
86 | # Note gdb_test_multiple has a default match for the prompt, |
87 | # which issues a FAIL. Consume the first prompt. | |
88 | set test "first prompt" | |
89 | gdb_test_multiple "" $test { | |
90 | -re "$gdb_prompt" { | |
91 | pass "first prompt" | |
92 | } | |
93 | } | |
94 | ||
95 | # We should only see one prompt more, and it should be | |
96 | # preceeded by print's output. | |
1e973570 PA |
97 | set test "no double prompt" |
98 | gdb_test_multiple "" $test { | |
c3f814a1 PA |
99 | -re "$gdb_prompt.*$gdb_prompt $" { |
100 | # The bug is present, and expect managed to read | |
101 | # enough characters into the buffer to fill it with | |
102 | # both prompts. | |
1e973570 PA |
103 | fail $test |
104 | } | |
c3f814a1 | 105 | -re " = 1\r\n$gdb_prompt $" { |
1e973570 PA |
106 | pass $test |
107 | } | |
1e973570 PA |
108 | } |
109 | ||
110 | # In case the board file wants to send further commands. | |
111 | gdb_test_no_output "set height unlimited" | |
112 | } | |
113 | } | |
114 | ||
115 | foreach variant { "continue" "wrapcont" } { | |
116 | cancel_pagination_in_target_event $variant | |
117 | } |