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

   1 # Copyright 2016-2020 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 # Do not run if gdb debug is enabled as it doesn't work for separate-mi-tty.
  24 if [gdb_debug_enabled] {
  25     untested "debug is enabled"
  26     return 0
  27 }
  28
  29 load_lib mi-support.exp
  30
  31 standard_testfile
  32
  33 if {[build_executable $testfile.exp $testfile ${srcfile} "debug"] == -1} {
  34     untested "failed to compile"
  35     return -1
  36 }
  37
  38 # The test driver.  SYNC_COMMAND specifies which command is used to
  39 # synchronously start the program running.
  40
  41 proc do_test {sync_command} {
  42     global srcdir subdir binfile srcfile
  43     global gdb_spawn_id gdb_main_spawn_id mi_spawn_id inferior_spawn_id
  44     global gdb_prompt mi_gdb_prompt
  45
  46     mi_gdb_exit
  47
  48     if {[mi_gdb_start "separate-mi-tty"] != 0} {
  49         fail "could not start gdb"
  50         return
  51     }
  52
  53     mi_delete_breakpoints
  54     mi_gdb_reinitialize_dir $srcdir/$subdir
  55     mi_gdb_load $binfile
  56
  57     # Start a synchronous run/continue on the MI UI.
  58     set test "send synchronous execution command"
  59     if {$sync_command == "run"} {
  60         if {[mi_run_cmd] >= 0} {
  61             pass $test
  62         } else {
  63             return
  64         }
  65     } else {
  66         if {[mi_runto main] < 0} {
  67             return
  68         }
  69         if {[mi_send_resuming_command_raw "123-exec-continue" $test] >= 0} {
  70             pass $test
  71         } else {
  72             return
  73         }
  74     }
  75
  76     # Send -thread-info immediately after.  If everything works
  77     # correctly, this is only serviced by GDB when the execution
  78     # stops.
  79     send_gdb "456-thread-info\n"
  80     pass "send -thread-info"
  81
  82     # Make sure we trigger an asynchronous event (=thread-group-added)
  83     # in the separate MI UI.  Note the "run" variant usually triggers
  84     # =thread-group-started/=thread-created/=library-loaded as well.
  85     with_spawn_id $gdb_main_spawn_id {
  86         gdb_test "add-inferior" "Added inferior 2"
  87     }
  88
  89     # Interrupt the program.
  90     with_spawn_id $gdb_main_spawn_id {
  91         set message "interrupt on the CLI"
  92         gdb_test_multiple "interrupt" "$message" {
  93             -re "$gdb_prompt " {
  94                 gdb_test_multiple "" "$message" {
  95                     -re "received signal SIGINT" {
  96                         pass $message
  97                     }
  98                 }
  99             }
 100         }
 101     }
 102
 103     # On the MI channel, we should see the interrupt output _before_
 104     # the -thread-info output.
 105     with_spawn_id $mi_spawn_id {
 106         mi_expect_interrupt "got MI interrupt output"
 107     }
 108
 109     # Look for the result of our -thread-info.  If input were
 110     # re-enabled too soon, the thread would incorrectly show up with
 111     # state="running".
 112     with_spawn_id $mi_spawn_id {
 113         mi_gdb_test "" "456\\^.*state=\"stopped\".*" \
 114             "got -thread-info output and thread is stopped"
 115     }
 116 }
 117
 118 foreach_with_prefix sync-command {"run" "continue"} {
 119     do_test ${sync-command}
 120 }