gdb/testsuite/gdb.mi/new-ui-mi-sync.exp

   1 # Copyright 2016-2019 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 # Test that on a separate MI UI (new-ui mi <tty>), the printing of an
  17 # asynchronous event (e.g. =library-loaded) during the synchronous
  18 # execution of a command (e.g.  -exec-run or -exec-continue) does not
  19 # prematurely re-enable MI input.  After executing synchronous
  20 # commands, MI should not process further commands until the inferior
  21 # stops again.  See PR gdb/20418.
  22
  23 load_lib mi-support.exp
  24
  25 standard_testfile
  26
  27 if {[build_executable $testfile.exp $testfile ${srcfile} "debug"] == -1} {
  28     untested "failed to compile"
  29     return -1
  30 }
  31
  32 # The test driver.  SYNC_COMMAND specifies which command is used to
  33 # synchronously start the program running.
  34
  35 proc do_test {sync_command} {
  36     global srcdir subdir binfile srcfile
  37     global gdb_spawn_id gdb_main_spawn_id mi_spawn_id inferior_spawn_id
  38     global gdb_prompt mi_gdb_prompt
  39
  40     mi_gdb_exit
  41
  42     if {[mi_gdb_start "separate-mi-tty"] != 0} {
  43         fail "could not start gdb"
  44         return
  45     }
  46
  47     mi_delete_breakpoints
  48     mi_gdb_reinitialize_dir $srcdir/$subdir
  49     mi_gdb_load $binfile
  50
  51     # Start a synchronous run/continue on the MI UI.
  52     set test "send synchronous execution command"
  53     if {$sync_command == "run"} {
  54         if {[mi_run_cmd] >= 0} {
  55             pass $test
  56         } else {
  57             return
  58         }
  59     } else {
  60         if {[mi_runto main] < 0} {
  61             return
  62         }
  63         if {[mi_send_resuming_command_raw "123-exec-continue" $test] >= 0} {
  64             pass $test
  65         } else {
  66             return
  67         }
  68     }
  69
  70     # Send -thread-info immediately after.  If everything works
  71     # correctly, this is only serviced by GDB when the execution
  72     # stops.
  73     send_gdb "456-thread-info\n"
  74     pass "send -thread-info"
  75
  76     # Make sure we trigger an asynchronous event (=thread-group-added)
  77     # in the separate MI UI.  Note the "run" variant usually triggers
  78     # =thread-group-started/=thread-created/=library-loaded as well.
  79     with_spawn_id $gdb_main_spawn_id {
  80         gdb_test "add-inferior" "Added inferior 2"
  81     }
  82
  83     # Interrupt the program.
  84     with_spawn_id $gdb_main_spawn_id {
  85         set message "interrupt on the CLI"
  86         gdb_test_multiple "interrupt" "$message" {
  87             -re "$gdb_prompt " {
  88                 gdb_test_multiple "" "$message" {
  89                     -re "received signal SIGINT" {
  90                         pass $message
  91                     }
  92                 }
  93             }
  94         }
  95     }
  96
  97     # On the MI channel, we should see the interrupt output _before_
  98     # the -thread-info output.
  99     with_spawn_id $mi_spawn_id {
 100         mi_expect_interrupt "got MI interrupt output"
 101     }
 102
 103     # Look for the result of our -thread-info.  If input were
 104     # re-enabled too soon, the thread would incorrectly show up with
 105     # state="running".
 106     with_spawn_id $mi_spawn_id {
 107         mi_gdb_test "" "456\\^.*state=\"stopped\".*" \
 108             "got -thread-info output and thread is stopped"
 109     }
 110 }
 111
 112 foreach_with_prefix sync-command {"run" "continue"} {
 113     do_test ${sync-command}
 114 }