| # Copyright (C) 2019-2021 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| standard_testfile |
| |
| if {[build_executable "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} { |
| return -1 |
| } |
| |
| # At this point GDB will be busy handling the breakpoint hits and |
| # re-resuming the program. Even if GDB internally switches thread |
| # context, the user should not notice it. The following part of the |
| # testcase ensures that. |
| |
| # Switch to thread EXPECTED_THR, and then confirm that the thread |
| # stays selected. |
| |
| proc test_current_thread {expected_thr} { |
| global decimal |
| global gdb_prompt |
| global binfile |
| |
| clean_restart $binfile |
| |
| if {![runto "all_started"]} { |
| return |
| } |
| |
| # Set a breakpoint that continuously fires but doeesn't cause a stop. |
| gdb_breakpoint [concat [gdb_get_line_number "set breakpoint here"] " if 0"] |
| |
| gdb_test "thread $expected_thr" "Switching to thread $expected_thr .*" \ |
| "switch to thread $expected_thr" |
| |
| # Continue the program in the background. |
| set test "continue&" |
| gdb_test_multiple "continue&" $test { |
| -re "Continuing\\.\r\n$gdb_prompt " { |
| pass $test |
| } |
| } |
| |
| set test "current thread is $expected_thr" |
| set fails 0 |
| for {set i 0} {$i < 10} {incr i} { |
| after 200 |
| |
| set cur_thread 0 |
| gdb_test_multiple "thread" $test { |
| -re "Current thread is ($decimal) .*$gdb_prompt " { |
| set cur_thread $expect_out(1,string) |
| } |
| } |
| |
| if {$cur_thread != $expected_thr} { |
| incr fails |
| } |
| } |
| |
| gdb_assert {$fails == 0} $test |
| |
| # Explicitly interrupt the target, because in all-stop/remote, |
| # that's all we can do when the target is running. If we don't do |
| # this, we'd time out trying to kill the target, while bringing |
| # down gdb & gdbserver. |
| set test "interrupt" |
| gdb_test_multiple $test $test { |
| -re "^interrupt\r\n$gdb_prompt " { |
| gdb_test_multiple "" $test { |
| -re "Thread .* received signal SIGINT, Interrupt\\." { |
| pass $test |
| } |
| } |
| } |
| } |
| } |
| |
| # Try once with each thread as current, to avoid missing a bug just |
| # because some part of GDB manages to switch to the right thread by |
| # chance. |
| for {set thr 1} {$thr <= 3} {incr thr} { |
| with_test_prefix "thread $thr" { |
| test_current_thread $thr |
| } |
| } |