+# Copyright 2005-2019 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 a bug where GDB would misbehave (most likely
+# crash) if you ran the "nosharelibrary" command, continued execution,
+# and then the program hit the shared library event breakpoint. GDB
+# would deference a dangling solib event probe pointer.
+
+standard_testfile
+
+if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
+ return -1
+}
+
+if {$use_gdb_stub && [target_info exists gdb,do_reload_on_run]} {
+ # This is the path taken by gdbserver "target remote" boards.
+ if { [gdb_reload] != 0 } {
+ untested "could not run to initial instruction"
+ return
+ }
+ pass "stopped at entry"
+} else {
+ if { [gdb_starti_cmd] < 0 } {
+ untested "could not run to initial instruction"
+ return
+ }
+ gdb_test "" "Program stopped.*" "stopped at entry"
+}
+
+# The program should stop at the first instruction, before the shared
+# library event breakpoint is first hit. On systems where probes are
+# present in the dynamic linker, such as GNU/Linux, discarding all
+# shared libraries discards such probes too. The probes-based
+# interface can no longer be used.
+gdb_test_no_output "nosharedlibrary"
+
+# Continue to main(), past the solib event.
+gdb_breakpoint main
+gdb_continue_to_breakpoint "main"