# This testcase is part of GDB, the GNU debugger. # Copyright 2020-2023 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # Test receiving TARGET_WAITKIND_SIGNALLED events from multiple # inferiors. In all stop-mode, upon receiving the exit event from one # of the inferiors, GDB will try to stop the other inferior, too. So, # a stop request will be sent. Receiving a TARGET_WAITKIND_SIGNALLED # status kind as a response to that stop request instead of a # TARGET_WAITKIND_STOPPED should be handled by GDB without problems. standard_testfile require !use_gdb_stub if {[build_executable "failed to prepare" $testfile $srcfile {debug}]} { return -1 } # We are testing GDB's ability to stop all threads. # Hence, go with the all-stop-on-top-of-non-stop mode. save_vars { GDBFLAGS } { append GDBFLAGS " -ex \"maint set target-non-stop on\"" clean_restart ${binfile} } # Wrap the entire test in a namespace to avoid contaminating other tests. namespace eval $testfile { # Start inferior NUM and record its PID in the TESTPID array. proc start_inferior {num} { with_test_prefix "start_inferior $num" { variable testpid global binfile srcfile if {$num != 1} { gdb_test "add-inferior" "Added inferior .*" \ "add empty inferior" gdb_test "inferior $num" "Switching to inferior .*" \ "switch to inferior" } gdb_load $binfile gdb_breakpoint "initialized" {temporary} gdb_run_cmd gdb_test "" ".*reakpoint .*, initialized .*${srcfile}.*" "run" set testpid($num) [get_integer_valueof "pid" -1] if {$testpid($num) == -1} { return -1 } return 0 } } # Sufficient inferiors to make sure that at least some other inferior # is killed while we're handling a killed event. set NUM_INFS 10 # The array holding each inferior's PID, indexed by inferior number. variable testpid array set testpid {} for {set i 1} {$i <= $NUM_INFS} {incr i} { if {[start_inferior $i] < 0} { return -1 } } # We want to continue all processes. gdb_test_no_output "set schedule-multiple on" # Resume, but then kill all from outside. gdb_test_multiple "continue" "continue processes" { -re "Continuing.\[\r\n\]+" { # Kill all processes at once. set kill_cmd "kill -9" for {set i 1} {$i <= $NUM_INFS} {incr i} { append kill_cmd " $testpid($i)" } remote_exec target $kill_cmd exp_continue } -re "Program terminated with signal.*$gdb_prompt $" { pass $gdb_test_name } } # Check that "continue" collects the process kill event, as many times # as we have inferiors left. for {set i 2} {$i <= $NUM_INFS} {incr i} { with_test_prefix "inf $i" { set live_inferior "" # Pick any live inferior. gdb_test_multiple "info inferiors" "" { -re "($decimal) *process.*$gdb_prompt $" { set live_inferior $expect_out(1,string) } } if {$live_inferior == ""} { return -1 } gdb_test "inferior $live_inferior" \ ".*Switching to inferior $live_inferior.*" \ "switch to inferior" gdb_test "continue" \ "Program terminated with signal SIGKILL, .*" \ "continue to SIGKILL" } } }