1 /* This testcase is part of GDB, the GNU debugger.
3 Copyright 2004-2019 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. */