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# This testcase is part of GDB, the GNU debugger.
# Copyright 2020-2024 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"
}
}
}
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