146 lines
4.9 KiB
Text
146 lines
4.9 KiB
Text
# This testcase is part of GDB, the GNU debugger.
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#
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# Copyright 2020-2022 Free Software Foundation, Inc.
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#
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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 that GDB can handle receiving the W and X packets for a target
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# with multiple threads, but only a single inferior.
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#
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# Specifically, check GDB handles this case where multi-process
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# extensions are turned off. At one point this was causing GDB to
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# give a warning when the exit arrived that the remote needed to
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# include a thread-id, which was not correct.
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load_lib gdbserver-support.exp
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if { [skip_gdbserver_tests] } {
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verbose "skipping gdbserver tests"
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return -1
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}
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standard_testfile
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# Start up GDB and GDBserver debugging EXECUTABLE. When
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# DISABLE_MULTI_PROCESS is true then disable GDB's remote
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# multi-process support, otherwise, leave it enabled.
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#
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# Places a breakpoint in function 'breakpt' and then continues to the
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# breakpoint, at which point it runs 'info threads'.
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proc prepare_for_test { executable disable_multi_process } {
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global GDBFLAGS
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save_vars { GDBFLAGS } {
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# If GDB and GDBserver are both running locally, set the sysroot to avoid
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# reading files via the remote protocol.
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if { ![is_remote host] && ![is_remote target] } {
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set GDBFLAGS "$GDBFLAGS -ex \"set sysroot\""
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}
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clean_restart ${executable}
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}
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# Make sure we're disconnected, in case we're testing with an
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# extended-remote board, therefore already connected.
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gdb_test "disconnect" ".*"
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# Disable XML-based thread listing, and possible the multi-process
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# extensions.
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gdb_test_no_output "set remote threads-packet off"
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if { $disable_multi_process } {
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gdb_test_no_output "set remote multiprocess-feature-packet off"
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}
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# Start gdbserver and connect.
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set res [gdbserver_start "" $executable]
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set gdbserver_protocol [lindex $res 0]
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set gdbserver_gdbport [lindex $res 1]
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set res [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
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if ![gdb_assert {$res == 0} "connect"] {
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return
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}
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# Run until we hit the breakpt function, then list all threads.
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gdb_breakpoint "breakpt"
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gdb_continue_to_breakpoint "breakpt"
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gdb_test "info threads" ".*"
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}
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# Run the tests where the inferior exits normally (the W packet) while
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# we have multiple-threads. EXECUTABLE is the binary under test, and
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# DISABLE_MULTI_PROCESS indicates if we should disable GDB's remote
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# multi-process support.
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proc run_exit_test { executable disable_multi_process } {
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global decimal
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prepare_for_test ${executable} ${disable_multi_process}
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# Finally, continue until the process exits, ensure we don't see
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# any warnings between "Continuing." and the final process has
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# exited message.
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if { $disable_multi_process } {
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set process_pattern "Remote target"
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} else {
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set process_pattern "process $decimal"
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}
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gdb_test "continue" \
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[multi_line \
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"Continuing\\." \
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"\\\[Inferior $decimal \\\(${process_pattern}\\\) exited normally\\\]" ] \
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"continue until process exits"
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}
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# Run the tests where the inferior exits with a signal (the X packet)
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# while we have multiple-threads. EXECUTABLE is the binary under
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# test, and DISABLE_MULTI_PROCESS indicates if we should disable GDB's
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# remote multi-process support.
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proc run_signal_test { executable disable_multi_process } {
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global decimal gdb_prompt
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prepare_for_test ${executable} ${disable_multi_process}
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set inf_pid [get_valueof "/d" "global_pid" "unknown"]
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gdb_assert ![string eq ${inf_pid} "unknown"] "read the pid"
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# This sets the inferior running again, with all threads going
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# into a long delay loop.
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send_gdb "continue\n"
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# Send the inferior a signal to kill it.
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sleep 1
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remote_exec target "kill -9 ${inf_pid}"
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# Process the output from GDB.
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gdb_test_multiple "" "inferior exited with signal" {
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-re "Continuing\\.\r\n\r\nProgram terminated with signal SIGKILL, Killed.\r\nThe program no longer exists.\r\n$gdb_prompt $" {
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pass $gdb_test_name
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}
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}
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}
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# Run all of the tests.
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foreach_with_prefix test { exit signal } {
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set def "DO_[string toupper $test]_TEST"
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set func "run_${test}_test"
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set executable "$binfile-${test}"
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if [build_executable "failed to prepare" $executable $srcfile \
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[list debug pthreads additional_flags=-D${def}]] {
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return -1
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}
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foreach_with_prefix multi_process { 0 1 } {
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$func ${executable} ${multi_process}
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}
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}
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