# This testcase is part of GDB, the GNU debugger.

# Copyright 2009-2023 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 issue originally described here:
#
#  https://sourceware.org/legacy-ml/gdb-patches/2009-06/msg00802.html
#
# The relevant code has since been removed from GDB, but it doesn't
# hurt to keep the testcase.

standard_testfile

# This only works with on Linux targets.
if {![istarget *-*-linux*]} {
    return
}

if { [prepare_for_testing "failed to prepare" current-lwp-dead] } {
    return -1
}

if {[runto_main] <= 0} {
    return -1
}

# Run to "fn" so that thread 2 is made current.
gdb_breakpoint "fn"
gdb_continue_to_breakpoint "fn" ".*do_clone.*"

# Run to thread 3, at a point where thread 2 is gone.
set line [gdb_get_line_number "at-fn_return"]
gdb_breakpoint $line
gdb_continue_to_breakpoint "fn_return" ".*at-fn_return.*"

# Confirm thread 2 is really gone.
gdb_test "info threads 2" "No threads match '2'\\."

gdb_continue_to_end "" continue 1