gdb/testsuite/gdb.server/stop-reply-no-thread.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2 #
   3 # Copyright 2018-2020 Free Software Foundation, Inc.
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  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.
  22
  23 load_lib gdbserver-support.exp
  24
  25 if { [skip_gdbserver_tests] } {
  26     verbose "skipping gdbserver tests"
  27     return -1
  28 }
  29
  30 standard_testfile
  31 if [prepare_for_testing "failed to prepare" $testfile $srcfile] {
  32     return -1
  33 }
  34
  35 # Make sure we're disconnected, in case we're testing with an
  36 # extended-remote board, therefore already connected.
  37 gdb_test "disconnect" ".*"
  38
  39 # Start GDBserver, with ";thread:NNN" in T stop replies disabled,
  40 # emulating old gdbservers when debugging single-threaded programs.
  41 set res [gdbserver_start "--disable-packet=Tthread" $binfile]
  42 set gdbserver_protocol [lindex $res 0]
  43 set gdbserver_gdbport [lindex $res 1]
  44
  45 # Disable XML-based thread listing, and multi-process extensions.
  46 gdb_test_no_output "set remote threads-packet off"
  47 gdb_test_no_output "set remote multiprocess-feature-packet off"
  48
  49 set res [gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport]
  50 if ![gdb_assert {$res == 0} "connect"] {
  51     return
  52 }
  53
  54 # There should be only one thread listed.
  55 set test "info threads"
  56 gdb_test_multiple $test $test {
  57     -re "2 Thread.*$gdb_prompt $" {
  58         fail $test
  59     }
  60     -re "has terminated.*$gdb_prompt $" {
  61         fail $test
  62     }
  63     -re "\\\* 1\[\t \]*Thread\[^\r\n\]*\r\n$gdb_prompt $" {
  64         pass $test
  65     }
  66 }
  67
  68 gdb_breakpoint "main"
  69
  70 # Bad GDB behaved like this:
  71 #  (gdb) c
  72 #  Cannot execute this command without a live selected thread.
  73 #  (gdb)
  74 gdb_test "c" "Breakpoint $decimal, main.*" "continue to main"