18a272653SPeter Holm#!/bin/sh 28a272653SPeter Holm 38a272653SPeter Holm# 4*4d846d26SWarner Losh# SPDX-License-Identifier: BSD-2-Clause 58a272653SPeter Holm# 68a272653SPeter Holm# Copyright (c) 2017 Konstantin Belousov <kib@FreeBSD.org> 78a272653SPeter Holm# 88a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 98a272653SPeter Holm# modification, are permitted provided that the following conditions 108a272653SPeter Holm# are met: 118a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 128a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 138a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 148a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 158a272653SPeter Holm# documentation and/or other materials provided with the distribution. 168a272653SPeter Holm# 178a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 188a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 198a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 208a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 218a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 228a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 238a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 248a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 258a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 268a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 278a272653SPeter Holm# SUCH DAMAGE. 288a272653SPeter Holm# 298a272653SPeter Holm 308a272653SPeter Holm# Trigger a SIGSEGV/SIGBUS _not_ caused by an access to the unmapped page. 318a272653SPeter Holm 328a272653SPeter Holmuname -a | egrep -q "i386|amd64" || exit 0 338a272653SPeter Holm. ../default.cfg 348a272653SPeter Holm 358a272653SPeter Holmcat > /tmp/segnp.c <<EOF 368a272653SPeter Holm/* $Id: segnp.c,v 1.2 2017/08/12 10:23:28 kostik Exp kostik $ */ 378a272653SPeter Holm 388a272653SPeter Holm#include <stdio.h> 398a272653SPeter Holm 408a272653SPeter Holmint 418a272653SPeter Holmmain(void) 428a272653SPeter Holm{ 438a272653SPeter Holm 448a272653SPeter Holm __asm __volatile ("movw %w0,%%ds\n" : : "q" (0x1117) : "memory"); 458a272653SPeter Holm printf("Huh ?\n"); 468a272653SPeter Holm} 478a272653SPeter HolmEOF 488a272653SPeter Holmmycc -o /tmp/segnp -Wall -Wextra -O2 /tmp/segnp.c || exit 1 498a272653SPeter Holmrm /tmp/segnp.c 508a272653SPeter Holm 518a272653SPeter Holmecho "expect: Bus error (core dumped)" 528a272653SPeter Holm(cd /tmp; /tmp/segnp) 538a272653SPeter Holms=$? 548a272653SPeter Holm[ $s -ne 138 ] && { echo "Expected 138, got $s", exit 1; } 558a272653SPeter Holm 568a272653SPeter Holmrm /tmp/segnp /tmp/segnp.core 578a272653SPeter Holmexit 0 58