1 # Copyright (C) 2014-2015 Free Software Foundation, Inc.
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.
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.
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/>.
18 # - setting a breakpoint while a thread is running results in the
19 # breakpoint being inserted immediately.
21 # - if breakpoint always-inserted mode is off, GDB doesn't remove
22 # breakpoints from the target when a thread stops, if there are
23 # still threads running.
27 if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} {
31 # The test proper. UPDATE_THREAD_LIST indicates whether we should do
32 # an "info threads" to sync the thread list after the first stop.
33 # ALWAYS_INSERTED indicates whether testing in "breakpoint
34 # always-inserted" mode. NON_STOP indicates whether we're testing in
35 # non-stop, or all-stop mode.
37 proc test { update_thread_list always_inserted non_stop } {
38 global srcfile binfile
42 clean_restart $binfile
44 gdb_test_no_output "set non-stop $non_stop"
45 gdb_test_no_output "set breakpoint always-inserted $always_inserted"
51 # In all-stop, check whether we're testing with the remote or
52 # extended-remote targets. If so, skip the tests, as with the
53 # RSP, we can't issue commands until the target replies to vCont.
54 # Not an issue with the non-stop RSP variant, which has a
56 if {$non_stop=="off" && [gdb_is_target_remote]} {
60 gdb_breakpoint [gdb_get_line_number "set wait-thread breakpoint here"]
61 gdb_continue_to_breakpoint "run to wait-thread breakpoint"
65 # Leave the main thread stopped, so GDB can poke at memory freely.
66 if {$non_stop == "off"} {
67 gdb_test_no_output "set scheduler-locking on"
68 gdb_test "thread 2" "Switching to .*"
69 gdb_test "continue &" "Continuing\." "continuing thread 2"
70 gdb_test "thread 3" "Switching to .*"
71 gdb_test "continue &" "Continuing\." "continuing thread 3"
72 gdb_test "thread 1" "Switching to .*" "switch back to main thread"
75 # Test with and without pulling the thread list explicitly with
76 # "info threads". GDB should be able to figure out itself whether
77 # the target is running and thus breakpoints should be inserted,
78 # without the user explicitly fetching the thread list.
79 if {$update_thread_list} {
80 gdb_test "info threads" \
81 "\\\(running\\\).*\\\(running\\\).* main .*" \
85 # Don't use gdb_test as it's racy in this case -- gdb_test matches
86 # the prompt with an end anchor. Sometimes expect will manage to
87 # read the breakpoint hit output while still processing this test,
88 # defeating the anchor.
89 set test "set breakpoint while a thread is running"
90 gdb_test_multiple "break breakpoint_function" $test {
91 -re "Breakpoint $decimal at .*: file .*$srcfile.*\r\n$gdb_prompt " {
99 # Check that the breakpoint is hit. Can't use gdb_test here, as
100 # no prompt is expected to come out.
101 set test "breakpoint is hit"
102 gdb_test_multiple "" $test {
103 -re "Breakpoint .*, breakpoint_function \[^\r\n\]+" {
108 if {$non_stop == "on"} {
109 gdb_test "info threads" \
110 "\\\(running\\\).* breakpoint_function .* main .*" \
113 # Unblock the other thread, which should then trip on the same
114 # breakpoint, unless GDB removed it by mistake. Can't use
115 # gdb_test here for the same reasons as above.
116 set test "unblock second thread"
117 gdb_test_multiple "print second_child = 1" $test {
118 -re " = 1\r\n$gdb_prompt " {
126 set test "breakpoint on second child is hit"
127 gdb_test_multiple "" $test {
128 -re "Breakpoint .*, breakpoint_function \[^\r\n\]+" {
133 gdb_test "info threads" \
134 " breakpoint_function .* breakpoint_function .* main .*" \
135 "all threads stopped"
137 # This test is not merged with the non-stop one because in
138 # all-stop we don't know where the other thread stops (inside
139 # usleep, for example).
140 set test "all threads stopped"
141 gdb_test_multiple "info threads" "$test" {
142 -re "\\\(running\\\).*$gdb_prompt $" {
145 -re "breakpoint_function .* main .*$gdb_prompt $" {
152 foreach update_thread_list { true false } {
153 foreach always_inserted { "off" "on" } {
154 foreach non_stop { "off" "on" } {
155 set stop_mode [expr ($non_stop=="off")?"all-stop":"non-stop"]
156 set update_list_mode [expr ($update_thread_list)?"w/ithr":"wo/ithr"]
157 with_test_prefix "$update_list_mode: always-inserted $always_inserted: $stop_mode" {
158 test $update_thread_list $always_inserted $non_stop