gdb/testsuite/gdb.base/gcore-buffer-overflow.exp

   1 # Copyright 2007-2012 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 # Test GDB's internal buffers safety for the GCORE command.
  17
  18
  19 set testfile "gcore-buffer-overflow"
  20 set srcfile  ${testfile}.c
  21 # The ${binfile} basename needs to exceed 80 characters (`sizeof (psargs)')
  22 # plus some additional data to overwrite the stack frame.
  23 set pattern  01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
  24 set binfile  ${objdir}/${subdir}/${testfile}-${pattern}
  25
  26 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  27      untested ${testfile}.exp
  28      return -1
  29 }
  30
  31 # Start with a fresh gdb.
  32
  33 gdb_exit
  34 gdb_start
  35 gdb_reinitialize_dir $srcdir/$subdir
  36 gdb_load ${binfile}
  37
  38 # Does this gdb support gcore?
  39 gdb_test_multiple "help gcore" "help gcore" {
  40     -re "Undefined command: .gcore.*$gdb_prompt $" {
  41         # gcore command not supported -- nothing to test here.
  42         unsupported "gdb does not support gcore on this target"
  43         return -1;
  44     }
  45     -re "Save a core file .*$gdb_prompt $" {
  46         pass "help gcore"
  47     }
  48 }
  49
  50 gdb_test_no_output "set args ${pattern}"        \
  51     "Set buffer exceeding arguments"
  52
  53 if { ! [ runto_main ] } then {
  54     untested gcore-buffer-overflow.exp
  55     return -1
  56 }
  57
  58 gdb_gcore_cmd "${objdir}/${subdir}/gcore-buffer-overflow.test" "save a corefile"