| 1 | # Copyright 2016 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 $testfile" |
| 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 | } |