gdb/testsuite/gdb.base/solib-probes-nosharedlibrary.exp

   1 # Copyright 2005-2019 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # Regression test for a bug where GDB would misbehave (most likely
  17 # crash) if you ran the "nosharelibrary" command, continued execution,
  18 # and then the program hit the shared library event breakpoint.  GDB
  19 # would deference a dangling solib event probe pointer.
  20
  21 standard_testfile
  22
  23 if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
  24     return -1
  25 }
  26
  27 if {$use_gdb_stub && [target_info exists gdb,do_reload_on_run]} {
  28     # This is the path taken by gdbserver "target remote" boards.
  29     if { [gdb_reload] != 0 } {
  30         untested "could not run to initial instruction"
  31         return
  32     }
  33     pass "stopped at entry"
  34 } else {
  35     if { [gdb_starti_cmd] < 0 } {
  36         untested "could not run to initial instruction"
  37         return
  38     }
  39     gdb_test "" "Program stopped.*" "stopped at entry"
  40 }
  41
  42 # The program should stop at the first instruction, before the shared
  43 # library event breakpoint is first hit.  On systems where probes are
  44 # present in the dynamic linker, such as GNU/Linux, discarding all
  45 # shared libraries discards such probes too.  The probes-based
  46 # interface can no longer be used.
  47 gdb_test_no_output "nosharedlibrary"
  48
  49 # Continue to main(), past the solib event.
  50 gdb_breakpoint main
  51 gdb_continue_to_breakpoint "main"