1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2002-2003 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <sys/salib.h>
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate /*
32*0Sstevel@tonic-gate * For documentation on these functions, see malloc(3C).
33*0Sstevel@tonic-gate */
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate void *
malloc(size_t size)36*0Sstevel@tonic-gate malloc(size_t size)
37*0Sstevel@tonic-gate {
38*0Sstevel@tonic-gate size_t *iaddr;
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate iaddr = (size_t *)bkmem_alloc(size + sizeof (size_t));
41*0Sstevel@tonic-gate if (iaddr == NULL) {
42*0Sstevel@tonic-gate errno = ENOMEM;
43*0Sstevel@tonic-gate return (NULL);
44*0Sstevel@tonic-gate }
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate iaddr[0] = size;
47*0Sstevel@tonic-gate return (&iaddr[1]);
48*0Sstevel@tonic-gate }
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate void *
calloc(size_t number,size_t size)51*0Sstevel@tonic-gate calloc(size_t number, size_t size)
52*0Sstevel@tonic-gate {
53*0Sstevel@tonic-gate void *addr;
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate addr = malloc(number * size);
56*0Sstevel@tonic-gate if (addr == NULL)
57*0Sstevel@tonic-gate return (NULL);
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate return (memset(addr, 0, number * size));
60*0Sstevel@tonic-gate }
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate void *
realloc(void * oldaddr,size_t size)63*0Sstevel@tonic-gate realloc(void *oldaddr, size_t size)
64*0Sstevel@tonic-gate {
65*0Sstevel@tonic-gate void *addr;
66*0Sstevel@tonic-gate size_t oldsize;
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate addr = malloc(size);
69*0Sstevel@tonic-gate if (oldaddr != NULL) {
70*0Sstevel@tonic-gate oldsize = ((size_t *)oldaddr)[-1];
71*0Sstevel@tonic-gate if (addr != NULL) {
72*0Sstevel@tonic-gate bcopy(oldaddr, addr, (oldsize > size ? oldsize : size));
73*0Sstevel@tonic-gate free(oldaddr);
74*0Sstevel@tonic-gate }
75*0Sstevel@tonic-gate }
76*0Sstevel@tonic-gate
77*0Sstevel@tonic-gate return (addr);
78*0Sstevel@tonic-gate }
79*0Sstevel@tonic-gate
80*0Sstevel@tonic-gate void
free(void * addr)81*0Sstevel@tonic-gate free(void *addr)
82*0Sstevel@tonic-gate {
83*0Sstevel@tonic-gate size_t *lenloc;
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate if (addr == NULL)
86*0Sstevel@tonic-gate return;
87*0Sstevel@tonic-gate lenloc = (size_t *)addr - 1;
88*0Sstevel@tonic-gate bkmem_free((caddr_t)lenloc, *lenloc + sizeof (size_t));
89*0Sstevel@tonic-gate }
90