1# Copyright 2007, 2008, 2009, 2010, 2011 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 18if $tracelevel then { 19 strace $tracelevel 20} 21 22 23set testfile "gcore-buffer-overflow" 24set srcfile ${testfile}.c 25# The ${binfile} basename needs to exceed 80 characters (`sizeof (psargs)') 26# plus some additional data to overwrite the stack frame. 27set pattern 01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789 28set binfile ${objdir}/${subdir}/${testfile}-${pattern} 29 30if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { 31 untested gcore.exp 32 return -1 33} 34 35# Start with a fresh gdb. 36 37gdb_exit 38gdb_start 39gdb_reinitialize_dir $srcdir/$subdir 40gdb_load ${binfile} 41 42# Does this gdb support gcore? 43gdb_test_multiple "help gcore" "help gcore" { 44 -re "Undefined command: .gcore.*$gdb_prompt $" { 45 # gcore command not supported -- nothing to test here. 46 unsupported "gdb does not support gcore on this target" 47 return -1; 48 } 49 -re "Save a core file .*$gdb_prompt $" { 50 pass "help gcore" 51 } 52} 53 54gdb_test_no_output "set args ${pattern}" \ 55 "Set buffer exceeding arguments" 56 57if { ! [ runto_main ] } then { 58 untested gcore-buffer-overflow.exp 59 return -1 60} 61 62set escapedfilename [string_to_regexp ${objdir}/${subdir}/gcore-buffer-overflow.test] 63 64set test "save a corefile" 65gdb_test_multiple "gcore ${objdir}/${subdir}/gcore-buffer-overflow.test" $test { 66 -re "Saved corefile ${escapedfilename}\[\r\n\]+$gdb_prompt $" { 67 pass $test 68 } 69 -re "Can't create a corefile\[\r\n\]+$gdb_prompt $" { 70 unsupported $test 71 } 72 eof { 73 fail $test 74 } 75} 76