gdb/testsuite/gdb.server/connect-stopped-target.exp

   1 # Copyright 2010-2021 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  15
  16 # Check that when GDB connects to a stopped target in either non-stop
  17 # or all-stop modes, "target remote" does not return with the remote
  18 # thread marked running.
  19
  20 load_lib gdbserver-support.exp
  21 load_lib prelink-support.exp
  22
  23 if {[skip_gdbserver_tests]} {
  24     return
  25 }
  26
  27 standard_testfile
  28 set executable ${testfile}
  29
  30 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  31     return -1
  32 }
  33
  34 proc do_test {nonstop} {
  35     global binfile
  36     global gdb_prompt
  37     global hex
  38
  39     clean_restart $binfile
  40
  41     # Make sure we're disconnected, in case we're testing with an
  42     # extended-remote board, therefore already connected.
  43     gdb_test "disconnect" ".*"
  44
  45     gdb_test "set non-stop $nonstop"
  46
  47     set res [gdbserver_spawn ""]
  48     set gdbserver_protocol [lindex $res 0]
  49     set gdbserver_gdbport [lindex $res 1]
  50
  51     gdb_test_multiple "define connect" "define user command: connect" {
  52         -re "Type commands for definition of \"connect\".\r\nEnd with a line saying just \"end\".\r\n>$" {
  53             gdb_test [join [list \
  54                                 "target $gdbserver_protocol $gdbserver_gdbport" \
  55                                 "info threads" \
  56                                 "p /x \$pc" \
  57                                 "end" \
  58                                ] "\n"] \
  59                 "" \
  60                 "define user command: connect"
  61         }
  62     }
  63
  64     # In non-stop mode, "target remote" used to return before the
  65     # already-stopped thread was marked stopped.  Because of that, a
  66     # script (or fast user) could see the target as running right
  67     # after connection:
  68     #
  69     # (gdb) connect
  70     #   Id   Target Id         Frame
  71     # * 1    Thread 31179      (running)
  72     # Target is executing.
  73     # (gdb)
  74     gdb_test "connect" " = $hex" "connect and print pc"
  75     gdb_test "print /x \$pc" " = $hex" "print pc again"
  76 }
  77
  78 foreach nonstop { "off" "on" } {
  79     with_test_prefix "non-stop=$nonstop" {
  80         do_test $nonstop
  81     }
  82 }