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 25standard_testfile 26 27if {[use_gdb_stub]} { 28 return 0 29} 30 31if {[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. 37save_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. 43namespace eval $testfile { 44 45# Start inferior NUM and record its PID in the TESTPID array. 46 47proc 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($num) == -1} { 67 return -1 68 } 69 70 return 0 71 } 72} 73 74# Sufficient inferiors to make sure that at least some other inferior 75# is killed while we're handling a killed event. 76set NUM_INFS 10 77 78# The array holding each inferior's PID, indexed by inferior number. 79variable testpid 80array set testpid {} 81 82for {set i 1} {$i <= $NUM_INFS} {incr i} { 83 if {[start_inferior $i] < 0} { 84 return -1 85 } 86} 87 88# We want to continue all processes. 89gdb_test_no_output "set schedule-multiple on" 90 91# Resume, but then kill all from outside. 92gdb_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 $gdb_test_name 106 } 107} 108 109# Check that "continue" collects the process kill event, as many times 110# as we have inferiors left. 111 112for {set i 2} {$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} 138