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Testcase for attaching in non-stop mode
This adds a testcase exercising attaching to a multi-threaded process, in all combinations of: - set non-stop on/off - maint target non-stop off/on - "attach" vs "attach &" This exercises the bugs fixed in the two previous patches. gdb/testsuite/ChangeLog: * gdb.threads/attach-non-stop.c: New file. * gdb.threads/attach-non-stop.exp: New file.
This commit is contained in:
Pedro Alves
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2021-02-03 Pedro Alves <pedro@palves.net>
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* gdb.threads/attach-non-stop.c: New file.
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* gdb.threads/attach-non-stop.exp: New file.
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2021-02-02 Lancelot SIX <lsix@lancelotsix.com>
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* gdb.base/inferior-noarg.c: New test.
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58
gdb/testsuite/gdb.threads/attach-non-stop.c
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58
gdb/testsuite/gdb.threads/attach-non-stop.c
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2021 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#define _GNU_SOURCE
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#include <assert.h>
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#include <pthread.h>
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#include <unistd.h>
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/* Number of threads we'll create. */
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static const int n_threads = 10;
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/* Entry point for threads. Loops forever. */
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void *
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thread_func (void *arg)
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{
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while (1)
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sleep (1);
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return NULL;
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}
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int
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main (int argc, char **argv)
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{
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int i;
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alarm (30);
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/* Spawn the test threads. */
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for (i = 0; i < n_threads; ++i)
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{
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pthread_t child;
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int rc;
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rc = pthread_create (&child, NULL, thread_func, NULL);
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assert (rc == 0);
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}
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while (1)
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sleep (1);
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return 0;
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}
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148
gdb/testsuite/gdb.threads/attach-non-stop.exp
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148
gdb/testsuite/gdb.threads/attach-non-stop.exp
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# Copyright 2021 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Test attaching to a multi-threaded process, in all combinations of:
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#
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# - set non-stop on/off
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# - maint target non-stop off/on
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# - "attach" vs "attach &"
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if {![can_spawn_for_attach]} {
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return 0
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}
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standard_testfile
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# The test proper. See description above.
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proc test {target_non_stop non_stop cmd} {
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global binfile srcfile
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global gdb_prompt
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global decimal
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global GDBFLAGS
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# Number of threads started by the program.
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set n_threads 10
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save_vars { GDBFLAGS } {
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append GDBFLAGS " -ex \"maint set target-non-stop $target_non_stop\""
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append GDBFLAGS " -ex \"set non-stop $non_stop\""
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clean_restart $binfile
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}
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set test_spawn_id [spawn_wait_for_attach $binfile]
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set testpid [spawn_id_get_pid $test_spawn_id]
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set attached 0
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set test "attach"
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set any "\[^\r\n\]*"
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if {$cmd == "attach"} {
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gdb_test_multiple "attach $testpid" $test {
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-re "Attaching to program:${any}process $testpid\r\n.*$gdb_prompt " {
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pass $test
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set attached 1
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}
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}
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if {!$attached} {
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kill_wait_spawned_process $test_spawn_id
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return
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}
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if {$non_stop} {
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# In non-stop, we will see one stop per thread after
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# the prompt.
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set stops 0
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set test "seen all stops"
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for {set thread 1} { $thread <= $n_threads } { incr thread } {
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gdb_test_multiple "" $test {
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-re "Thread $::decimal ${any} stopped" {
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incr stops
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}
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}
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}
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# If we haven't seen all stops, then the gdb_test_multiple
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# in the loop above will have already issued a FAIL.
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if {$stops == $n_threads} {
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pass $test
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}
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}
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gdb_test_multiple "info threads" "" {
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-re "\\(running\\).*$gdb_prompt $" {
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fail $gdb_test_name
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}
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-re "$gdb_prompt $" {
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pass $gdb_test_name
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}
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}
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} else {
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gdb_test_multiple "attach $testpid &" $test {
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-re "Attaching to program:${any}process $testpid\r\n.*$gdb_prompt " {
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pass $test
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set attached 1
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}
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}
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if {!$attached} {
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kill_wait_spawned_process $test_spawn_id
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return
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}
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set running_count 0
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gdb_test_multiple "info threads" "all threads running" {
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-re "\\(running\\)" {
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incr running_count
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exp_continue
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}
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-re "Cannot execute this command while the target is running.*$gdb_prompt $" {
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# Testing against a remote server that doesn't do
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# non-stop mode. Explicitly interrupt. This doesn't
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# test the same code paths in GDB, but it's still
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# something.
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gdb_test_multiple "interrupt" "" {
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-re "$gdb_prompt " {
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gdb_test_multiple "" $gdb_test_name {
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-re "received signal SIGINT, Interrupt" {
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pass $gdb_test_name
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}
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}
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}
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}
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}
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-re "$gdb_prompt $" {
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gdb_assert {$running_count == ($n_threads + 1)} $gdb_test_name
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}
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}
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}
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gdb_test "detach" "Detaching from.*"
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kill_wait_spawned_process $test_spawn_id
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}
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if {[build_executable "failed to prepare" $testfile $srcfile {debug pthreads}] == -1} {
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return -1
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}
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foreach_with_prefix target-non-stop {"off" "on"} {
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foreach_with_prefix non-stop {"off" "on"} {
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foreach_with_prefix cmd {"attach" "attach&"} {
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test ${target-non-stop} ${non-stop} ${cmd}
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}
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}
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}
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