# Copyright 2009-2020 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/>.

# Regression test for PR threads/19354.  If you have a threaded
# inferior running (thread_db must be loaded), switch to another
# inferior, one that is NOT running yet, and do "info threads", you
# would get back an error.

standard_testfile hello.c

if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile} {pthreads debug}] } {
    return -1
}

clean_restart ${testfile}

if { ![runto_main] } then {
    return -1
}

# Add another inferior.
gdb_test "add-inferior" "Added inferior 2.*" "add empty inferior 2"
gdb_test "inferior 2" "Switching to inferior 2.*" "switch to inferior 2"

# "info threads" while inferior 1 has execution and inferior 2 is not
# running yet should show inferior 1's thread, and give no error.
gdb_test "info threads" "1\.1 .* main .* at .*$srcfile:.*No selected thread.*"