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

   1 # Copyright 2007, 2008 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 2 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, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  16
  17 # Please email any bugs, comments, and/or additions to this file to:
  18 # bug-gdb@prep.ai.mit.edu
  19
  20 # Test GDB's internal buffers safety for the GCORE command.
  21
  22 if $tracelevel then {
  23         strace $tracelevel
  24 }
  25
  26 set prms_id 0
  27 set bug_id 0
  28
  29 set testfile "gcore-buffer-overflow"
  30 set srcfile  ${testfile}.c
  31 # The ${binfile} basename needs to exceed 80 characters (`sizeof (psargs)')
  32 # plus some additional data to overwrite the stack frame.
  33 set pattern  01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789
  34 set binfile  ${objdir}/${subdir}/${testfile}-${pattern}
  35
  36 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  37      untested gcore.exp
  38      return -1
  39 }
  40
  41 # Start with a fresh gdb.
  42
  43 gdb_exit
  44 gdb_start
  45 gdb_reinitialize_dir $srcdir/$subdir
  46 gdb_load ${binfile}
  47
  48 # Does this gdb support gcore?
  49 send_gdb "help gcore\n"
  50 gdb_expect {
  51     -re "Undefined command: .gcore.*$gdb_prompt $" {
  52         # gcore command not supported -- nothing to test here.
  53         unsupported "gdb does not support gcore on this target"
  54         return -1;
  55     }
  56     -re "Save a core file .*$gdb_prompt $" {
  57         pass "help gcore"
  58     }
  59     -re ".*$gdb_prompt $" {
  60         fail "help gcore"
  61     }
  62     timeout {
  63         fail "help gcore (timeout)"
  64     }
  65 }
  66
  67 gdb_test "set args ${pattern}"  \
  68          ""                     \
  69          "Set buffer exceeding arguments"
  70
  71 if { ! [ runto_main ] } then {
  72     untested gcore-buffer-overflow.exp
  73     return -1
  74 }
  75
  76 set escapedfilename [string_to_regexp ${objdir}/${subdir}/gcore-buffer-overflow.test]
  77
  78 set test "save a corefile"
  79 gdb_test_multiple "gcore ${objdir}/${subdir}/gcore-buffer-overflow.test" $test {
  80     -re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" {
  81         pass $test
  82     }
  83     -re "Can't create a corefile\[\r\n\]+$gdb_prompt $" {
  84         unsupported $test
  85     }
  86     eof {
  87         fail $test
  88     }
  89 }