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# This testcase is part of GDB, the GNU debugger.
# Copyright 2020-2021 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_EXITED 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_EXITED
# status kind as a response to that stop request instead of a
# TARGET_WAITKIND_STOPPED should be handled by GDB without problems.
standard_testfile
if {[use_gdb_stub]} {
return 0
}
if {[build_executable "failed to prepare" $testfile $srcfile]} {
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}
}
# Start inferior NUM.
proc start_inferior {num} {
with_test_prefix "start_inferior $num" {
global srcfile binfile
if {$num != 1} {
gdb_test "add-inferior" "Added inferior $num.*" \
"add empty inferior"
gdb_test "inferior $num" "Switching to inferior $num.*" \
"switch to inferior"
}
gdb_load $binfile
if {[gdb_start_cmd] < 0} {
fail "could not start"
return -1
}
gdb_test "" ".*reakpoint .*, main .*${srcfile}.*" "start"
}
return 0
}
# Sufficient inferiors to make sure that at least some other inferior
# exits while we're handling a process exit event.
set NUM_INFS 10
for {set i 1} {$i <= $NUM_INFS} {incr i} {
if {[start_inferior $i] < 0} {
return -1
}
}
# We want to continue all processes.
gdb_test_no_output "set schedule-multiple on"
# Check that "continue" continues to the end of an inferior, as many
# times as we have inferiors.
for {set i 1} {$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 $live_inferior.*" \
"switch to another inferior"
set exited_inferior ""
# We want GDB to complete the command and return the prompt
# instead of going into an infinite loop.
gdb_test_multiple "continue" "continue" {
-re "Inferior ($decimal) \[^\n\r\]+ exited normally.*$gdb_prompt $" {
set exited_inferior $expect_out(1,string)
pass $gdb_test_name
}
}
if {$exited_inferior == ""} {
return -1
}
}
}
# Finally, check that we can re-run all inferiors. Note that if any
# inferior was still alive this would catch it, as "run" would query
# "Start it from the beginning?".
delete_breakpoints
for {set i 1} {$i <= $NUM_INFS} {incr i} {
with_test_prefix "inf $i" {
gdb_test "inferior $i" \
".*Switching to inferior $i.*" \
"switch to inferior for re-run"
gdb_test "run" "$inferior_exited_re normally\]" \
"re-run inferior"
}
}
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