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4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
125 lines
4.0 KiB
Plaintext
125 lines
4.0 KiB
Plaintext
# This testcase is part of GDB, the GNU debugger.
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#
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# Copyright 2018-2022 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 backward compatibility with older GDBservers which did not
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# include ";thread:NNN" in T stop replies when debugging
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# single-threaded programs, even though they'd list the main thread in
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# response to qfThreadInfo/qsThreadInfo. See PR remote/22597.
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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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if { [build_executable "failed to prepare" $testfile $srcfile] == -1 } {
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return -1
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}
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# Run the tests with different features of GDBserver disabled.
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proc run_test { disable_feature target_nonstop } {
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global binfile gdb_prompt decimal GDBFLAGS
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save_vars { GDBFLAGS } {
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# If GDB and GDBserver are both running locally, set the sysroot to avoid
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# reading files via the remote protocol.
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if { ![is_remote host] && ![is_remote target] } {
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set GDBFLAGS "$GDBFLAGS -ex \"set sysroot\""
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}
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clean_restart ${binfile}
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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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set packet_arg ""
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if { $disable_feature != "" } {
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set packet_arg "--disable-packet=${disable_feature}"
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}
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set res [gdbserver_start $packet_arg $binfile]
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set gdbserver_protocol [lindex $res 0]
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set gdbserver_gdbport [lindex $res 1]
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# Disable XML-based thread listing, and multi-process extensions.
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gdb_test_no_output "set remote threads-packet off"
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gdb_test_no_output "set remote multiprocess-feature-packet off"
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# Set target-nonstop mode.
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gdb_test_no_output "maint set target-non-stop ${target_nonstop}"
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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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# There should be only one thread listed.
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set test "info threads"
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gdb_test_multiple $test $test {
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-re "2 Thread.*$gdb_prompt $" {
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fail $test
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}
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-re "has terminated.*$gdb_prompt $" {
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fail $test
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}
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-re "\\\* 1\[\t \]*Thread\[^\r\n\]*\r\n$gdb_prompt $" {
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pass $test
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}
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}
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gdb_breakpoint "main"
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# Bad GDB behaved like this:
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# (gdb) c
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# Cannot execute this command without a live selected thread.
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# (gdb)
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gdb_test "c" "Breakpoint $decimal, main.*" "continue to main"
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# Continue until exit. The server sends a 'W' with no PID.
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# Bad GDB gave an error like below when target is nonstop:
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# (gdb) c
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# Continuing.
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# No process or thread specified in stop reply: W00
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gdb_continue_to_end "" continue 1
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}
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# Disable different features within gdbserver:
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#
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# Tthread: Start GDBserver, with ";thread:NNN" in T stop replies disabled,
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# emulating old gdbservers when debugging single-threaded programs.
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#
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# T: Start GDBserver with the entire 'T' stop reply packet disabled,
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# GDBserver will instead send the 'S' stop reply.
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foreach_with_prefix to_disable { "" Tthread T } {
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foreach_with_prefix t_nonstop { off on } {
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run_test $to_disable $t_nonstop
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}
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}
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# Regression for PR gdb/26819: Cover the case when GDBserver does not report
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# any threads (i.e. the remote target has no concept of threads).
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#
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# Scenario 1: Disable 'T' and 'qfThreadInfo' packets
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# Scenario 2: Disable all threading packets
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foreach_with_prefix to_disable { "T,qfThreadInfo" "threads" } {
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# Non-stop mode not applicable - off.
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run_test $to_disable off
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}
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