/* * Copyright (C) 2013-2020 Canonical, Ltd. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * This code is a complete clean re-write of the stress tool by * Colin Ian King and attempts to be * backwardly compatible with the stress tool by Amos Waterland * but has more stress tests and more * functionality. * */ #include #include static char buffer[8192]; int main(void) { uintptr_t ptr = (((uintptr_t)buffer) & ~(4096 -1)); int ret; ret = mprotect((void *)ptr, 4096, PROT_READ); (void)ret; ret = mprotect((void *)ptr, 4096, PROT_WRITE); (void)ret; ret = mprotect((void *)ptr, 4096, PROT_EXEC); (void)ret; ret = mprotect((void *)ptr, 4096, PROT_NONE); (void)ret; ret = mprotect((void *)ptr, 4096, PROT_READ | PROT_WRITE); (void)ret; return 0; }