gdb1056.exp revision 1.7 
1# Copyright 2003-2017 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 for PR gdb/1056.
17# 2003-10-18  Michael Chastain <mec@shout.net>
18
19# test SIGFPE (such as division by 0) inside gdb itself
20
21
22gdb_start
23
24# When SIGFPE happens, the operating system may restart the
25# offending instruction after the signal handler returns,
26# rather than proceeding to the next instruction.  This happens
27# on i686-pc-linux-gnu with a linux kernel.  If gdb has a naive
28# signal handler that just returns, then it will restart the
29# broken instruction and gdb gets an endless stream of SIGFPE's
30# and makes no progress.
31#
32# On a broken gdb this test will just time out.
33
34gdb_test_multiple "print 1/0" "" {
35    -re ".*$gdb_prompt $" {
36	pass "print 1/0"
37    }
38    timeout {
39	kfail "gdb/1056" "print 1/0"
40    }
41}
42gdb_test "print 1U/0" ".*Division by zero.*" "test unsigned division by zero"
43
44