+# Copyright 2017 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/>. */
+
+load_lib gdbserver-support.exp
+
+if {[skip_gdbserver_tests]} {
+ return
+}
+
+standard_testfile normal.c
+
+if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
+ return -1
+}
+
+# Test running GDB without providing a local binary for it. In order
+# to do that, we unset GDBFLAGS before running GDB. We also start
+# gdbserver "by hand". For more details about this test, see PR
+# remote/21852.
+save_vars { GDBFLAGS } {
+ set GDBFLAGS ""
+ gdb_exit
+ gdb_start
+
+ gdb_test_no_output "set remote exec-file $binfile" \
+ "set remote exec-file"
+
+ # Make sure we're disconnected, in case we're testing with an
+ # extended-remote board, therefore already connected.
+ gdb_test "disconnect" ".*" "disconnect"
+
+ # Let's start gdbserver in extended-remote mode now. We cannot
+ # use gdbserver_start_extended here because it starts gdbserver,
+ # then GDB *with* a local binary, and the connect both.
+ set res [gdbserver_start "--multi" ""]
+ set gdbserver_protocol [lindex $res 0]
+ if { [string first "extended-" $gdbserver_protocol] != 0} {
+ set gdbserver_protocol "extended-$gdbserver_protocol"
+ }
+ set gdbserver_gdbport [lindex $res 1]
+ set use_gdb_stub 0
+
+ gdb_test "target ${gdbserver_protocol} ${gdbserver_gdbport}" \
+ "Remote debugging using $gdbserver_gdbport" \
+ "connect to gdbserver"
+
+ gdb_test "run" \
+ "\\\[Inferior $decimal \\\(process $decimal\\\) exited normally\\\]" \
+ "run test program until the end"
+}