1# Copyright 2016-2023 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. 24if [gdb_debug_enabled] { 25 untested "debug is enabled" 26 return 0 27} 28 29load_lib mi-support.exp 30 31standard_testfile 32 33if {[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 41proc 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 on connection .*" 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 118foreach_with_prefix sync-command {"run" "continue"} { 119 do_test ${sync-command} 120} 121