1 /* This testcase is part of GDB, the GNU debugger.
3 Copyright 2004-2018 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
35 handler (int sig
, siginfo_t
*info
, void *context
)
37 if (info
->si_addr
== p
)
45 /* Set up unwritable memory. */
48 len
= sysconf(_SC_PAGESIZE
);
49 p
= mmap (0, len
, PROT_NONE
, MAP_ANON
|MAP_PRIVATE
, -1, 0);
56 /* Set up the signal handler. */
58 struct sigaction action
;
59 memset (&action
, 0, sizeof (action
));
60 action
.sa_sigaction
= handler
;
61 action
.sa_flags
|= SA_SIGINFO
;
62 if (sigaction (SIGSEGV
, &action
, NULL
))
68 /* Trigger SIGSEGV. */
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