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3666a048 | 1 | # Copyright (C) 2016-2021 Free Software Foundation, Inc. |
c65d6b55 PA |
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 | # Regression test for PR gdb/18360. Test that "interrupt -a" while | |
17 | # some thread is stepping over a breakpoint behaves as expected. | |
18 | ||
19 | standard_testfile | |
20 | ||
21 | if {[prepare_for_testing "failed to prepare" $testfile $srcfile \ | |
22 | {debug pthreads}] == -1} { | |
23 | return -1 | |
24 | } | |
25 | ||
26 | if {![runto_main]} { | |
27 | fail "can't run to main" | |
28 | return -1 | |
29 | } | |
30 | ||
31 | # Read the number of threads out of the inferior. | |
32 | set NUM_THREADS [get_integer_valueof "num_threads" -1] | |
33 | ||
34 | # Account for the main thread. | |
35 | incr NUM_THREADS | |
36 | ||
37 | # Run command and wait for the prompt, without end anchor. | |
38 | ||
39 | proc gdb_test_no_anchor {cmd} { | |
40 | global gdb_prompt | |
41 | ||
42 | gdb_test_multiple $cmd $cmd { | |
43 | -re "$gdb_prompt " { | |
44 | pass $cmd | |
45 | } | |
46 | -re "infrun:" { | |
47 | exp_continue | |
48 | } | |
49 | } | |
50 | } | |
51 | ||
52 | # Enable/disable debugging. | |
53 | ||
54 | proc enable_debug {enable} { | |
55 | ||
56 | # Comment out to debug problems with the test. | |
57 | return | |
58 | ||
59 | gdb_test_no_anchor "set debug infrun $enable" | |
60 | gdb_test_no_anchor "set debug displaced $enable" | |
61 | } | |
62 | ||
63 | # If RESULT is not zero, make the caller return RESULT. | |
64 | ||
65 | proc return_if_nonzero { result } { | |
66 | if {$result != 0} { | |
67 | return -code return $result | |
68 | } | |
69 | } | |
70 | ||
71 | # Do one iteration of "c -a& -> interrupt -a". Return zero on sucess, | |
72 | # and non-zero if some test fails. | |
73 | ||
74 | proc test_one_iteration {} { | |
75 | global gdb_prompt | |
76 | global NUM_THREADS | |
77 | global decimal | |
78 | ||
79 | set saw_continuing 0 | |
80 | set test "continue -a &" | |
81 | return_if_nonzero [gdb_test_multiple $test $test { | |
82 | -re "Continuing.\r\n" { | |
83 | set saw_continuing 1 | |
84 | exp_continue | |
85 | } | |
86 | -re "$gdb_prompt " { | |
87 | if ![gdb_assert $saw_continuing $test] { | |
88 | return 1 | |
89 | } | |
90 | } | |
91 | -re "infrun:" { | |
92 | exp_continue | |
93 | } | |
94 | }] | |
95 | ||
96 | set running_count 0 | |
97 | set test "all threads are running" | |
98 | return_if_nonzero [gdb_test_multiple "info threads" $test { | |
99 | -re "Thread \[^\r\n\]* \\(running\\)" { | |
100 | incr running_count | |
101 | exp_continue | |
102 | } | |
103 | -re "$gdb_prompt " { | |
104 | if ![gdb_assert {$running_count == $NUM_THREADS} $test] { | |
105 | return 1 | |
106 | } | |
107 | } | |
108 | -re "infrun:" { | |
109 | exp_continue | |
110 | } | |
111 | }] | |
112 | ||
113 | set test "interrupt -a" | |
114 | return_if_nonzero [gdb_test_multiple $test $test { | |
115 | -re "$gdb_prompt " { | |
116 | pass $test | |
117 | } | |
118 | -re "infrun:" { | |
119 | exp_continue | |
120 | } | |
121 | }] | |
122 | ||
123 | set stopped_count 0 | |
124 | set test "wait for stops" | |
125 | # Don't return on failure here, in order to let "info threads" put | |
126 | # useful info in gdb.log. | |
127 | gdb_test_multiple "" $test { | |
128 | -re "Thread $decimal \[^\r\n\]*stopped" { | |
129 | incr stopped_count | |
130 | if {$stopped_count != $NUM_THREADS} { | |
131 | exp_continue | |
132 | } | |
133 | } | |
134 | -re "$gdb_prompt " { | |
135 | gdb_assert {$stopped_count == $NUM_THREADS} $test | |
136 | } | |
137 | -re "infrun:" { | |
138 | exp_continue | |
139 | } | |
140 | } | |
141 | ||
142 | # Check if all threads are seen as stopped with "info | |
143 | # threads". It's a bit redundant with the test above, but | |
144 | # it's useful to have this in the gdb.log if the above ever | |
145 | # happens to fail. | |
146 | set running_count 0 | |
147 | set test "all threads are stopped" | |
148 | return_if_nonzero [gdb_test_multiple "info threads" $test { | |
149 | -re "Thread \[^\r\n\]* \\(running\\)" { | |
150 | incr running_count | |
151 | exp_continue | |
152 | } | |
153 | -re "$gdb_prompt " { | |
154 | if ![gdb_assert {$running_count == 0} $test] { | |
155 | return 1 | |
156 | } | |
157 | } | |
158 | }] | |
159 | ||
160 | return 0 | |
161 | } | |
162 | ||
163 | # The test driver proper. If DISPLACED is "on", turn on displaced | |
164 | # stepping. If "off", turn it off. | |
165 | ||
166 | proc testdriver {displaced} { | |
167 | global binfile | |
168 | global GDBFLAGS | |
169 | ||
170 | save_vars { GDBFLAGS } { | |
171 | append GDBFLAGS " -ex \"set non-stop on\"" | |
172 | clean_restart $binfile | |
173 | } | |
174 | ||
175 | gdb_test_no_output "set displaced-stepping $displaced" | |
176 | ||
177 | if ![runto all_started] { | |
178 | fail "couldn't run to all_started" | |
179 | return | |
180 | } | |
181 | set break_line [gdb_get_line_number "set breakpoint here"] | |
182 | ||
183 | gdb_test "break $break_line if always_zero" "Breakpoint .*" "set breakpoint" | |
184 | ||
185 | enable_debug 1 | |
186 | ||
187 | for {set iter 0} {$iter < 20} {incr iter} { | |
188 | with_test_prefix "iter=$iter" { | |
189 | # Return early if some test fails, to avoid cascading | |
190 | # timeouts if something goes wrong. | |
191 | if {[test_one_iteration] != 0} { | |
192 | return | |
193 | } | |
194 | } | |
195 | } | |
196 | } | |
197 | ||
198 | foreach_with_prefix displaced-stepping {"on" "off"} { | |
199 | if { ${displaced-stepping} != "off" && ![support_displaced_stepping] } { | |
200 | continue | |
201 | } | |
202 | ||
203 | testdriver ${displaced-stepping} | |
204 | } |