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      1 # Copyright 2005-2024 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"
     52