gdb/testsuite/gdb.multi/multi-kill.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2020-2024 Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 # Test receiving TARGET_WAITKIND_SIGNALLED events from multiple
  19 # inferiors.  In all stop-mode, upon receiving the exit event from one
  20 # of the inferiors, GDB will try to stop the other inferior, too.  So,
  21 # a stop request will be sent.  Receiving a TARGET_WAITKIND_SIGNALLED
  22 # status kind as a response to that stop request instead of a
  23 # TARGET_WAITKIND_STOPPED should be handled by GDB without problems.
  24
  25 standard_testfile
  26
  27 require !use_gdb_stub
  28
  29 if {[build_executable "failed to prepare" $testfile $srcfile {debug}]} {
  30     return -1
  31 }
  32
  33 # We are testing GDB's ability to stop all threads.
  34 # Hence, go with the all-stop-on-top-of-non-stop mode.
  35 save_vars { GDBFLAGS } {
  36     append GDBFLAGS " -ex \"maint set target-non-stop on\""
  37     clean_restart ${binfile}
  38 }
  39
  40 # Wrap the entire test in a namespace to avoid contaminating other tests.
  41 namespace eval $testfile {
  42
  43 # Start inferior NUM and record its PID in the TESTPID array.
  44
  45 proc start_inferior {num} {
  46     with_test_prefix "start_inferior $num" {
  47         variable testpid
  48         global binfile srcfile
  49
  50         if {$num != 1} {
  51             gdb_test "add-inferior" "Added inferior .*" \
  52                 "add empty inferior"
  53             gdb_test "inferior $num" "Switching to inferior .*" \
  54                 "switch to inferior"
  55         }
  56
  57         gdb_load $binfile
  58
  59         gdb_breakpoint "initialized" {temporary}
  60         gdb_run_cmd
  61         gdb_test "" ".*reakpoint .*, initialized .*${srcfile}.*" "run"
  62
  63         set testpid($num) [get_integer_valueof "pid" -1]
  64         if {$testpid($num) == -1} {
  65             return -1
  66         }
  67
  68         return 0
  69     }
  70 }
  71
  72 # Sufficient inferiors to make sure that at least some other inferior
  73 # is killed while we're handling a killed event.
  74 set NUM_INFS 10
  75
  76 # The array holding each inferior's PID, indexed by inferior number.
  77 variable testpid
  78 array set testpid {}
  79
  80 for {set i 1} {$i <= $NUM_INFS} {incr i} {
  81     if {[start_inferior $i] < 0} {
  82         return -1
  83     }
  84 }
  85
  86 # We want to continue all processes.
  87 gdb_test_no_output "set schedule-multiple on"
  88
  89 # Resume, but then kill all from outside.
  90 gdb_test_multiple "continue" "continue processes" {
  91     -re "Continuing.\[\r\n\]+" {
  92         # Kill all processes at once.
  93
  94         set kill_cmd "kill -9"
  95         for {set i 1} {$i <= $NUM_INFS} {incr i} {
  96             append kill_cmd " $testpid($i)"
  97         }
  98
  99         remote_exec target $kill_cmd
 100         exp_continue
 101     }
 102     -re "Program terminated with signal.*$gdb_prompt $" {
 103         pass $gdb_test_name
 104     }
 105 }
 106
 107 # Check that "continue" collects the process kill event, as many times
 108 # as we have inferiors left.
 109
 110 for {set i 2} {$i <= $NUM_INFS} {incr i} {
 111     with_test_prefix "inf $i" {
 112         set live_inferior ""
 113
 114         # Pick any live inferior.
 115         gdb_test_multiple "info inferiors" "" {
 116             -re "($decimal) *process.*$gdb_prompt $" {
 117                 set live_inferior $expect_out(1,string)
 118             }
 119         }
 120
 121         if {$live_inferior == ""} {
 122             return -1
 123         }
 124
 125         gdb_test "inferior $live_inferior" \
 126             ".*Switching to inferior $live_inferior.*" \
 127             "switch to inferior"
 128
 129         gdb_test "continue" \
 130             "Program terminated with signal SIGKILL, .*" \
 131             "continue to SIGKILL"
 132     }
 133 }
 134
 135 }