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

   1 # This testcase is part of GDB, the GNU debugger.
   2
   3 # Copyright 2020-2021 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 if {[use_gdb_stub]} {
  28     return 0
  29 }
  30
  31 if {[build_executable "failed to prepare" $testfile $srcfile {debug}]} {
  32     return -1
  33 }
  34
  35 # We are testing GDB's ability to stop all threads.
  36 # Hence, go with the all-stop-on-top-of-non-stop mode.
  37 save_vars { GDBFLAGS } {
  38     append GDBFLAGS " -ex \"maint set target-non-stop on\""
  39     clean_restart ${binfile}
  40 }
  41
  42 # Wrap the entire test in a namespace to avoid contaminating other tests.
  43 namespace eval $testfile {
  44
  45 # Start inferior NUM and record its PID in the TESTPID array.
  46
  47 proc start_inferior {num} {
  48     with_test_prefix "start_inferior $num" {
  49         variable testpid
  50         global binfile srcfile
  51
  52         if {$num != 1} {
  53             gdb_test "add-inferior" "Added inferior .*" \
  54                 "add empty inferior"
  55             gdb_test "inferior $num" "Switching to inferior .*" \
  56                 "switch to inferior"
  57         }
  58
  59         gdb_load $binfile
  60
  61         gdb_breakpoint "initialized" {temporary}
  62         gdb_run_cmd
  63         gdb_test "" ".*reakpoint .*, initialized .*${srcfile}.*" "run"
  64
  65         set testpid($num) [get_integer_valueof "pid" -1]
  66         if {$testpid($num) == -1} {
  67             return -1
  68         }
  69
  70         return 0
  71     }
  72 }
  73
  74 # Sufficient inferiors to make sure that at least some other inferior
  75 # is killed while we're handling a killed event.
  76 set NUM_INFS 10
  77
  78 # The array holding each inferior's PID, indexed by inferior number.
  79 variable testpid
  80 array set testpid {}
  81
  82 for {set i 1} {$i <= $NUM_INFS} {incr i} {
  83     if {[start_inferior $i] < 0} {
  84         return -1
  85     }
  86 }
  87
  88 # We want to continue all processes.
  89 gdb_test_no_output "set schedule-multiple on"
  90
  91 # Resume, but then kill all from outside.
  92 gdb_test_multiple "continue" "continue processes" {
  93     -re "Continuing.\[\r\n\]+" {
  94         # Kill all processes at once.
  95
  96         set kill_cmd "kill -9"
  97         for {set i 1} {$i <= $NUM_INFS} {incr i} {
  98             append kill_cmd " $testpid($i)"
  99         }
 100
 101         remote_exec target $kill_cmd
 102         exp_continue
 103     }
 104     -re "Program terminated with signal.*$gdb_prompt $" {
 105         pass $gdb_test_name
 106     }
 107 }
 108
 109 # Check that "continue" collects the process kill event, as many times
 110 # as we have inferiors left.
 111
 112 for {set i 2} {$i <= $NUM_INFS} {incr i} {
 113     with_test_prefix "inf $i" {
 114         set live_inferior ""
 115
 116         # Pick any live inferior.
 117         gdb_test_multiple "info inferiors" "" {
 118             -re "($decimal) *process.*$gdb_prompt $" {
 119                 set live_inferior $expect_out(1,string)
 120             }
 121         }
 122
 123         if {$live_inferior == ""} {
 124             return -1
 125         }
 126
 127         gdb_test "inferior $live_inferior" \
 128             ".*Switching to inferior $live_inferior.*" \
 129             "switch to inferior"
 130
 131         gdb_test "continue" \
 132             "Program terminated with signal SIGKILL, .*" \
 133             "continue to SIGKILL"
 134     }
 135 }
 136
 137 }