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