2018-01-01 05:43:02 +01:00
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# Copyright (C) 2016-2018 Free Software Foundation, Inc.
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2016-01-25 13:00:20 +01:00
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Regression test for PR threads/19461 (strange "info thread" behavior
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# in non-stop). GDB used to miss updating the parent/child running
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# states after a fork.
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standard_testfile
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# The test proper.
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proc do_test { detach_on_fork follow_fork non_stop schedule_multiple } {
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global GDBFLAGS
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global srcfile testfile
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global gdb_prompt
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save_vars { GDBFLAGS } {
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append GDBFLAGS " -ex \"set non-stop $non_stop\""
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if {[prepare_for_testing "failed to prepare" \
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$testfile $srcfile {debug}] == -1} {
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return -1
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}
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}
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if ![runto_main] then {
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2016-12-01 21:40:05 +01:00
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fail "can't run to main"
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2016-01-25 13:00:20 +01:00
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return 0
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}
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# If debugging with target remote, check whether the all-stop
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# variant of the RSP is being used. If so, we can't run the
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# all-stop tests.
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if { [target_info exists gdb_protocol]
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&& ([target_info gdb_protocol] == "remote"
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|| [target_info gdb_protocol] == "extended-remote")} {
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set test "maint show target-non-stop"
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gdb_test_multiple "maint show target-non-stop" $test {
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-re "(is|currently) on.*$gdb_prompt $" {
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}
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-re "(is|currently) off.*$gdb_prompt $" {
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unsupported "can't issue info threads while target is running"
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return 0
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}
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}
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}
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# We want to catch "[New inferior ...]" below, to avoid sleeping.
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if {$detach_on_fork == "off" || $follow_fork == "child"} {
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gdb_test_no_output "set print inferior-events on"
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}
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gdb_test_no_output "set detach-on-fork $detach_on_fork"
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gdb_test_no_output "set follow-fork $follow_fork"
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if {$non_stop == "off"} {
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gdb_test_no_output "set schedule-multiple $schedule_multiple"
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}
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2018-06-14 18:47:03 +02:00
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# If we're detaching from the parent (or child), then tell it to
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# exit itself when its child (or parent) exits. If we stay
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# attached, we take care of killing it.
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if {$detach_on_fork == "on"} {
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gdb_test "print exit_if_relative_exits = 1" " = 1"
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}
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2016-01-25 13:00:20 +01:00
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set test "continue &"
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gdb_test_multiple $test $test {
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-re "$gdb_prompt " {
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pass $test
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}
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}
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if {$detach_on_fork == "off" || $follow_fork == "child"} {
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set test "fork child appears"
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gdb_test_multiple "" $test {
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-re "\\\[New inferior " {
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pass $test
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}
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}
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} else {
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# All we can do is wait a little bit for the parent to fork.
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sleep 1
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}
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set not_nl "\[^\r\n\]*"
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if {$detach_on_fork == "on" && $non_stop == "on" && $follow_fork == "child"} {
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gdb_test "info threads" \
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" 2.1 ${not_nl}\\\(running\\\).*No selected thread.*"
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} elseif {$detach_on_fork == "on" && $follow_fork == "child"} {
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gdb_test "info threads" \
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"\\\* 2.1 ${not_nl}\\\(running\\\)"
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} elseif {$detach_on_fork == "on"} {
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gdb_test "info threads" \
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"\\\* 1 ${not_nl}\\\(running\\\)"
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} elseif {$non_stop == "on"
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|| ($schedule_multiple == "on" && $follow_fork == "parent")} {
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# Both parent and child should be marked running, and the
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# parent should be selected.
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gdb_test "info threads" \
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[multi_line \
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"\\\* 1.1 ${not_nl} \\\(running\\\)${not_nl}" \
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" 2.1 ${not_nl} \\\(running\\\)"]
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} elseif {$schedule_multiple == "on" && $follow_fork == "child"} {
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# Both parent and child should be marked running, and the
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# child should be selected.
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gdb_test "info threads" \
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[multi_line \
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" 1.1 ${not_nl} \\\(running\\\)${not_nl}" \
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"\\\* 2.1 ${not_nl} \\\(running\\\)"]
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} else {
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set test "only $follow_fork marked running"
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gdb_test_multiple "info threads" $test {
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-re "\\\(running\\\)${not_nl}\\\(running\\\)\r\n$gdb_prompt $" {
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fail $test
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}
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-re "\\\* 1.1 ${not_nl}\\\(running\\\)\r\n 2.1 ${not_nl}\r\n$gdb_prompt $" {
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gdb_assert [string eq $follow_fork "parent"] $test
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}
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-re "1.1 ${not_nl}\r\n\\\* 2.1 ${not_nl}\\\(running\\\)\r\n$gdb_prompt $" {
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gdb_assert [string eq $follow_fork "child"] $test
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}
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}
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}
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# We don't want to see "Inferior exited" in reaction to the kills.
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gdb_test_no_output "set print inferior-events off"
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# Kill both parent and child.
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if {$detach_on_fork == "off" || $follow_fork == "parent"} {
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gdb_test_no_output "kill inferior 1" "kill parent"
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}
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if {$detach_on_fork == "off" || $follow_fork == "child"} {
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gdb_test_no_output "kill inferior 2" "kill child"
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}
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}
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# Exercise all permutations of:
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#
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# set detach-on-fork off|on
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# set follow-fork parent|child
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# set non-stop on|off
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# set schedule-multiple on|off
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foreach_with_prefix detach-on-fork {"off" "on"} {
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foreach_with_prefix follow-fork {"parent" "child"} {
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with_test_prefix "non-stop" {
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do_test ${detach-on-fork} ${follow-fork} "on" "-"
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}
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with_test_prefix "all-stop" {
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foreach_with_prefix schedule-multiple {"on" "off"} {
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do_test ${detach-on-fork} ${follow-fork} "off" ${schedule-multiple}
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}
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}
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}
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}
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