1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 23 /* 24 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 #pragma ident "%Z%%M% %I% %E% SMI" 29 30 #include <sys/systm.h> 31 #include <sys/cmn_err.h> 32 #include <sys/kobj.h> 33 #include <sys/kobj_impl.h> 34 35 /* 36 * This module is used both during the normal operation of the kernel (i.e. 37 * after kmem has been initialized) and during boot (before unix`_start has 38 * been called). kobj_alloc is able to tell the difference between the two 39 * cases, and as such must be used instead of kmem_alloc. 40 */ 41 42 void 43 zmemcpy(uchar_t *dest, const uchar_t *source, uint_t len) 44 { 45 bcopy(source, dest, len); 46 } 47 48 struct zchdr { 49 uint_t zch_magic; 50 uint_t zch_size; 51 }; 52 53 #define ZCH_MAGIC 0x3cc13cc1 54 55 /*ARGSUSED*/ 56 void * 57 zcalloc(void *opaque, uint_t items, uint_t size) 58 { 59 size_t nbytes = sizeof (struct zchdr) + items * size; 60 struct zchdr *z = kobj_zalloc(nbytes, KM_NOWAIT|KM_TMP); 61 62 if (z == NULL) 63 return (NULL); 64 65 z->zch_magic = ZCH_MAGIC; 66 z->zch_size = nbytes; 67 68 return (z + 1); 69 } 70 71 /*ARGSUSED*/ 72 void 73 zcfree(void *opaque, void *ptr) 74 { 75 struct zchdr *z = ((struct zchdr *)ptr) - 1; 76 77 if (z->zch_magic != ZCH_MAGIC) 78 panic("zcfree region corrupt: hdr=%p ptr=%p", (void *)z, ptr); 79 80 kobj_free(z, z->zch_size); 81 } 82