source: rtems-libbsd/rtemsbsd/rtems/rtems-bsd-malloc.c @ 9fd69c1

4.1155-freebsd-126-freebsd-12freebsd-9.3
Last change on this file since 9fd69c1 was 9fd69c1, checked in by Sebastian Huber <sebastian.huber@…>, on 10/30/13 at 13:41:44

MALLOC(9): Return valid pointer for malloc(0), etc.

  • Property mode set to 100644
File size: 3.0 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup rtems_bsd_rtems
5 *
6 * @brief TODO.
7 */
8
9/*
10 * Copyright (c) 2009, 2010 embedded brains GmbH.  All rights reserved.
11 *
12 *  embedded brains GmbH
13 *  Obere Lagerstr. 30
14 *  82178 Puchheim
15 *  Germany
16 *  <rtems@embedded-brains.de>
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
20 * are met:
21 * 1. Redistributions of source code must retain the above copyright
22 *    notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 *    notice, this list of conditions and the following disclaimer in the
25 *    documentation and/or other materials provided with the distribution.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 */
39
40#include <machine/rtems-bsd-config.h>
41#include <machine/rtems-bsd-support.h>
42
43#include <rtems/bsd/sys/param.h>
44#include <rtems/bsd/sys/types.h>
45#include <sys/systm.h>
46#include <sys/malloc.h>
47#include <sys/kernel.h>
48
49MALLOC_DEFINE(M_DEVBUF, "devbuf", "device driver memory");
50
51MALLOC_DEFINE(M_TEMP, "temp", "misc temporary data buffers");
52
53MALLOC_DEFINE(M_IP6OPT, "ip6opt", "IPv6 options");
54MALLOC_DEFINE(M_IP6NDP, "ip6ndp", "IPv6 Neighbor Discovery");
55
56MALLOC_DEFINE(M_IOV, "iov", "large iov's");
57
58void
59malloc_init(void *data)
60{
61        struct malloc_type *mtp = data;
62}
63
64void
65malloc_uninit(void *data)
66{
67        struct malloc_type *mtp = data;
68
69        BSD_PRINTF( "desc = %s\n", mtp->ks_shortdesc);
70}
71
72#undef malloc
73
74void *
75_bsd_malloc(unsigned long size, struct malloc_type *mtp, int flags)
76{
77        void *p = malloc(size > 0 ? size : 1);
78
79        if ((flags & M_ZERO) != 0 && p != NULL) {
80                memset(p, 0, size);
81        }
82
83        return p;
84}
85
86#undef realloc
87void *
88_bsd_realloc( void *addr, unsigned long size,
89  struct malloc_type *type, int flags)
90{
91        void *p = realloc(addr, size > 0 ? size : 1);
92
93        if ((flags & M_ZERO) != 0 && p != NULL) {
94                memset(p, 0, size);
95        }
96
97        return p;
98}
99
100#undef reallocf
101void *
102_bsd_reallocf( void *addr, unsigned long size,
103  struct malloc_type *type, int flags)
104{
105        void *p = realloc(addr, size > 0 ? size : 1);
106
107        if (p == NULL) {
108                free(addr,NULL);
109        }
110
111        return p;
112}
113
114#undef free
115void
116_bsd_free(void *addr, struct malloc_type *mtp)
117{
118        free(addr);
119}
120
121#undef strdup
122
123char *
124_bsd_strdup(const char *__restrict s, struct malloc_type *type)
125{
126        return strdup(s);
127}
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