gdb/testsuite/gdb.base/run-control-while-bg-execution.exp

   1 # Copyright 2022-2024 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 # This test aims at testing various operations after getting rid of an inferior
  17 # that was running in background, or while we have an inferior running in
  18 # background.  The original intent was to expose cases where the commit-resumed
  19 # state of the process stratum target was not reset properly after killing an
  20 # inferior running in background, which would be a problem when trying to run
  21 # again.  The test was expanded to test various combinations of
  22 # run-control-related actions done with an inferior running in background.
  23
  24 require !use_gdb_stub
  25
  26 standard_testfile
  27
  28 if {[build_executable "failed to prepare" $testfile $srcfile]} {
  29     return
  30 }
  31
  32 # Run one variation of the test:
  33 #
  34 # 1. Start an inferior in the background with "run &"
  35 # 2. Do action 1
  36 # 3. Do action 2
  37 #
  38 # Action 1 indicates what to do with the inferior running in background:
  39 #
  40 #  - kill: kill it
  41 #  - detach: detach it
  42 #  - add: add a new inferior and switch to it, leave the inferior running in
  43 #    background alone
  44 #  - none: do nothing, leave the inferior running in background alone
  45 #
  46 # Action 2 indicates what to do after that:
  47 #
  48 #  - start: use the start command
  49 #  - run: use the run command
  50 #  - attach: start a process outside of GDB and attach it
  51 proc do_test { action1 action2 } {
  52     save_vars { ::GDBFLAGS } {
  53         append ::GDBFLAGS " -ex \"maintenance set target-non-stop on\""
  54         clean_restart $::binfile
  55     }
  56
  57     # Ensure we are at least after the getpid call, should we need it.
  58     if { ![runto "after_getpid"] } {
  59         return
  60     }
  61
  62     # Some commands below ask for confirmation.  Turn that off for simplicity.
  63     gdb_test "set confirm off"
  64     gdb_test -no-prompt-anchor "continue &"
  65
  66     if { $action1 == "kill" } {
  67         gdb_test "kill" "Inferior 1 .* killed.*"
  68     } elseif { $action1 == "detach" } {
  69         set child_pid [get_integer_valueof "mypid" -1]
  70         if { $child_pid == -1 } {
  71             fail "failed to extract child pid"
  72             return
  73         }
  74
  75         gdb_test "detach" "Inferior 1 .* detached.*" "detach from first instance"
  76
  77         # Kill the detached process, to avoid hanging when exiting GDBserver,
  78         # when testing with the native-extended-gdbserver board.
  79         remote_exec target "kill $child_pid"
  80     } elseif { $action1 == "add" } {
  81         gdb_test "add-inferior -exec $::binfile" \
  82             "Added inferior 2 on connection 1.*" "add-inferior"
  83         gdb_test "inferior 2" "Switching to inferior 2 .*"
  84     } elseif { $action1 == "none" } {
  85
  86     } else {
  87         error "invalid action 1"
  88     }
  89
  90     if { $action2 == "start" } {
  91         gdb_test "start" "Temporary breakpoint $::decimal\(?:\.$::decimal\)?, main .*"
  92     } elseif { $action2 == "run" } {
  93         gdb_test "break main" "Breakpoint $::decimal at $::hex.*"
  94         gdb_test "run" "Breakpoint $::decimal\(?:\.$::decimal\)?, main .*"
  95     } elseif { $action2 == "attach" } {
  96         set test_spawn_id [spawn_wait_for_attach $::binfile]
  97         set test_pid [spawn_id_get_pid $test_spawn_id]
  98
  99         if { [gdb_attach $test_pid] } {
 100             gdb_test "detach" "Inferior $::decimal .* detached.*" \
 101                 "detach from second instance"
 102         }
 103
 104         # Detach and kill this inferior so we don't leave it around.
 105         kill_wait_spawned_process $test_spawn_id
 106     } else {
 107         error "invalid action 2"
 108     }
 109 }
 110
 111 foreach_with_prefix action1 { kill detach add none } {
 112     foreach_with_prefix action2 { start run attach } {
 113         do_test $action1 $action2
 114     }
 115 }