1 # This testcase is part of GDB, the GNU debugger.
3 # Copyright 2018-2020 Free Software Foundation, Inc.
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7 # the Free Software Foundation; either version 3 of the License, or
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
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18 # Test backward compatibility with older GDBservers which did not
19 # include ";thread:NNN" in T stop replies when debugging
20 # single-threaded programs, even though they'd list the main thread in
21 # response to qfThreadInfo/qsThreadInfo. See PR remote/22597.
23 load_lib gdbserver-support.exp
25 if { [skip_gdbserver_tests] } {
26 verbose "skipping gdbserver tests"
31 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {
35 # Run the tests with different features of GDBserver disabled.
36 proc run_test { disable_feature } {
37 global binfile gdb_prompt decimal
39 clean_restart ${binfile}
41 # Make sure we're disconnected, in case we're testing with an
42 # extended-remote board, therefore already connected.
43 gdb_test "disconnect" ".*"
45 set res [gdbserver_start "--disable-packet=${disable_feature}" $binfile]
46 set gdbserver_protocol [lindex $res 0]
47 set gdbserver_gdbport [lindex $res 1]
49 # Disable XML-based thread listing, and multi-process extensions.
50 gdb_test_no_output "set remote threads-packet off"
51 gdb_test_no_output "set remote multiprocess-feature-packet off"
53 set res [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
54 if ![gdb_assert {$res == 0} "connect"] {
58 # There should be only one thread listed.
59 set test "info threads"
60 gdb_test_multiple $test $test {
61 -re "2 Thread.*$gdb_prompt $" {
64 -re "has terminated.*$gdb_prompt $" {
67 -re "\\\* 1\[\t \]*Thread\[^\r\n\]*\r\n$gdb_prompt $" {
74 # Bad GDB behaved like this:
76 # Cannot execute this command without a live selected thread.
78 gdb_test "c" "Breakpoint $decimal, main.*" "continue to main"
81 # Disable different features within gdbserver:
83 # Tthread: Start GDBserver, with ";thread:NNN" in T stop replies disabled,
84 # emulating old gdbservers when debugging single-threaded programs.
86 # T: Start GDBserver with the entire 'T' stop reply packet disabled,
87 # GDBserver will instead send the 'S' stop reply.
88 foreach_with_prefix to_disable { Tthread T } {