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

   1 # Copyright 2016-2024 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 require !gdb_debug_enabled
  25
  26 load_lib mi-support.exp
  27
  28 standard_testfile
  29
  30 if {[build_executable $testfile.exp $testfile ${srcfile} "debug"] == -1} {
  31     untested "failed to compile"
  32     return -1
  33 }
  34
  35 # The test driver.  SYNC_COMMAND specifies which command is used to
  36 # synchronously start the program running.
  37
  38 proc do_test {sync_command} {
  39     global srcdir subdir binfile srcfile
  40     global gdb_spawn_id gdb_main_spawn_id mi_spawn_id inferior_spawn_id
  41     global gdb_prompt mi_gdb_prompt
  42
  43     if {[mi_clean_restart $binfile "separate-mi-tty"] != 0} {
  44         fail "could not start gdb"
  45         return
  46     }
  47
  48     # Start a synchronous run/continue on the MI UI.
  49     set test "send synchronous execution command"
  50     if {$sync_command == "run"} {
  51         if {[mi_run_cmd] >= 0} {
  52             pass $test
  53         } else {
  54             return
  55         }
  56     } else {
  57         if {[mi_runto_main] < 0} {
  58             return
  59         }
  60         if {[mi_send_resuming_command_raw "123-exec-continue" $test] >= 0} {
  61             pass $test
  62         } else {
  63             return
  64         }
  65     }
  66
  67     # Send -thread-info immediately after.  If everything works
  68     # correctly, this is only serviced by GDB when the execution
  69     # stops.
  70     send_gdb "456-thread-info\n"
  71     pass "send -thread-info"
  72
  73     # Make sure we trigger an asynchronous event (=thread-group-added)
  74     # in the separate MI UI.  Note the "run" variant usually triggers
  75     # =thread-group-started/=thread-created/=library-loaded as well.
  76     with_spawn_id $gdb_main_spawn_id {
  77         gdb_test "add-inferior" "Added inferior 2 on connection .*"
  78     }
  79
  80     # Interrupt the program.
  81     with_spawn_id $gdb_main_spawn_id {
  82         set message "interrupt on the CLI"
  83         gdb_test_multiple "interrupt" "$message" {
  84             -re "$gdb_prompt " {
  85                 gdb_test_multiple "" "$message" {
  86                     -re "received signal SIGINT" {
  87                         pass $message
  88                     }
  89                 }
  90             }
  91         }
  92     }
  93
  94     # On the MI channel, we should see the interrupt output _before_
  95     # the -thread-info output.
  96     with_spawn_id $mi_spawn_id {
  97         mi_expect_interrupt "got MI interrupt output"
  98     }
  99
 100     # Look for the result of our -thread-info.  If input were
 101     # re-enabled too soon, the thread would incorrectly show up with
 102     # state="running".
 103     with_spawn_id $mi_spawn_id {
 104         mi_gdb_test "" "456\\^.*state=\"stopped\".*" \
 105             "got -thread-info output and thread is stopped"
 106     }
 107 }
 108
 109 foreach_with_prefix sync-command {"run" "continue"} {
 110     do_test ${sync-command}
 111 }