9512fe850e98fdd448c638ca63fdd92a8a510255ahl/*
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * CDDL HEADER START
9512fe850e98fdd448c638ca63fdd92a8a510255ahl *
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * The contents of this file are subject to the terms of the
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * Common Development and Distribution License (the "License").
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * You may not use this file except in compliance with the License.
9512fe850e98fdd448c638ca63fdd92a8a510255ahl *
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * or http://www.opensolaris.org/os/licensing.
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * See the License for the specific language governing permissions
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * and limitations under the License.
9512fe850e98fdd448c638ca63fdd92a8a510255ahl *
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * When distributing Covered Code, include this CDDL HEADER in each
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * If applicable, add the following below this CDDL HEADER, with the
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * fields enclosed by brackets "[]" replaced with your own identifying
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * information: Portions Copyright [yyyy] [name of copyright owner]
9512fe850e98fdd448c638ca63fdd92a8a510255ahl *
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * CDDL HEADER END
9512fe850e98fdd448c638ca63fdd92a8a510255ahl */
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
9512fe850e98fdd448c638ca63fdd92a8a510255ahl/*
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * Use is subject to license terms.
9512fe850e98fdd448c638ca63fdd92a8a510255ahl */
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy/*
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy * Copyright (c) 2012 by Delphix. All rights reserved.
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy */
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
9512fe850e98fdd448c638ca63fdd92a8a510255ahl/*
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * ASSERTION:
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * Using integer arithmetic providing a non-aligned memory address will throw
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * a runtime error.
9512fe850e98fdd448c638ca63fdd92a8a510255ahl *
9512fe850e98fdd448c638ca63fdd92a8a510255ahl * SECTION: Pointers and Arrays/Generic Pointers
9512fe850e98fdd448c638ca63fdd92a8a510255ahl */
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
9512fe850e98fdd448c638ca63fdd92a8a510255ahl#pragma D option quiet
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy#if defined(__i386) || defined(__amd64)
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy#define __x86 1
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy#endif
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Royint array[2];
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roychar *ptr;
9512fe850e98fdd448c638ca63fdd92a8a510255ahlint *p;
9512fe850e98fdd448c638ca63fdd92a8a510255ahlint *q;
9512fe850e98fdd448c638ca63fdd92a8a510255ahlint *r;
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
9512fe850e98fdd448c638ca63fdd92a8a510255ahlBEGIN
9512fe850e98fdd448c638ca63fdd92a8a510255ahl{
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy array[0] = 0x12345678;
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy array[1] = 0xabcdefff;
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy ptr = (char *) &array[0];
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy p = (int *) (ptr);
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy q = (int *) (ptr + 2);
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy r = (int *) (ptr + 3);
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy printf("*p: 0x%x\n", *p);
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy printf("*q: 0x%x\n", *q);
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy printf("*r: 0x%x\n", *r);
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy /*
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy * On x86, the above unaligned memory accesses are allowed and should
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy * not result in the ERROR probe firing.
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy */
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy#ifdef __x86
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy exit(1);
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy#else
9512fe850e98fdd448c638ca63fdd92a8a510255ahl exit(0);
9512fe850e98fdd448c638ca63fdd92a8a510255ahl#endif
9512fe850e98fdd448c638ca63fdd92a8a510255ahl}
9512fe850e98fdd448c638ca63fdd92a8a510255ahl
9512fe850e98fdd448c638ca63fdd92a8a510255ahlERROR
9512fe850e98fdd448c638ca63fdd92a8a510255ahl{
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy#ifdef __x86
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy exit(0);
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy#else
9512fe850e98fdd448c638ca63fdd92a8a510255ahl exit(1);
c93cc65a53e442bf8f9292f82e8c0797e0ed3f3dSebastien Roy#endif
9512fe850e98fdd448c638ca63fdd92a8a510255ahl}