1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2023 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <stdint.h>
33 #include "securec.h"
34 #include "los_config.h"
35 #include "los_memory.h"
36
37 #if (LOSCFG_LIBC_NEWLIB == 1)
__wrap__calloc_r(struct _reent * reent,size_t nitems,size_t size)38 void *__wrap__calloc_r(struct _reent *reent, size_t nitems, size_t size)
39 #else
40 void *calloc(size_t nitems, size_t size)
41 #endif
42 {
43 #if (LOSCFG_LIBC_NEWLIB == 1)
44 (void)reent;
45 #endif
46 size_t real_size;
47 void *ptr = NULL;
48
49 if ((nitems == 0) || (size == 0) || (nitems > (UINT32_MAX / size))) {
50 return NULL;
51 }
52
53 real_size = (size_t)(nitems * size);
54 ptr = LOS_MemAlloc(OS_SYS_MEM_ADDR, real_size);
55 if (ptr != NULL) {
56 (void)memset_s(ptr, real_size, 0, real_size);
57 }
58 return ptr;
59 }
60
61 #if (LOSCFG_LIBC_NEWLIB == 1)
__wrap__free_r(struct _reent * reent,void * ptr)62 void __wrap__free_r(struct _reent *reent, void *ptr)
63 #else
64 void free(void *ptr)
65 #endif
66 {
67 #if (LOSCFG_LIBC_NEWLIB == 1)
68 (void)reent;
69 #endif
70 if (ptr == NULL) {
71 return;
72 }
73
74 LOS_MemFree(OS_SYS_MEM_ADDR, ptr);
75 }
76
77 #if (LOSCFG_LIBC_NEWLIB == 1)
__wrap__malloc_usable_size_r(struct _reent * reent,void * aptr)78 size_t __wrap__malloc_usable_size_r(struct _reent *reent, void *aptr)
79 {
80 (void)reent;
81 (void)aptr;
82 return 0;
83 }
84 #endif
85
86 #if (LOSCFG_LIBC_NEWLIB == 1)
__wrap__malloc_r(struct _reent * reent,size_t size)87 void *__wrap__malloc_r(struct _reent *reent, size_t size)
88 #else
89 void *malloc(size_t size)
90 #endif
91 {
92 #if (LOSCFG_LIBC_NEWLIB == 1)
93 (void)reent;
94 #endif
95 if (size == 0) {
96 return NULL;
97 }
98
99 return LOS_MemAlloc(OS_SYS_MEM_ADDR, size);
100 }
101
zalloc(size_t size)102 void *zalloc(size_t size)
103 {
104 void *ptr = NULL;
105
106 if (size == 0) {
107 return NULL;
108 }
109
110 ptr = LOS_MemAlloc(OS_SYS_MEM_ADDR, size);
111 if (ptr != NULL) {
112 (void)memset_s(ptr, size, 0, size);
113 }
114 return ptr;
115 }
116
117 #if (LOSCFG_LIBC_NEWLIB == 1)
__wrap__memalign_r(struct _reent * reent,size_t boundary,size_t size)118 void *__wrap__memalign_r(struct _reent *reent, size_t boundary, size_t size)
119 #else
120 void *memalign(size_t boundary, size_t size)
121 #endif
122 {
123 #if (LOSCFG_LIBC_NEWLIB == 1)
124 (void)reent;
125 #endif
126 if (size == 0) {
127 return NULL;
128 }
129
130 return LOS_MemAllocAlign(OS_SYS_MEM_ADDR, size, boundary);
131 }
132
133 #if (LOSCFG_LIBC_NEWLIB == 1)
__wrap__realloc_r(struct _reent * reent,void * ptr,size_t size)134 void *__wrap__realloc_r(struct _reent *reent, void *ptr, size_t size)
135 #else
136 void *realloc(void *ptr, size_t size)
137 #endif
138 {
139 #if (LOSCFG_LIBC_NEWLIB == 1)
140 (void)reent;
141 #endif
142 if (ptr == NULL) {
143 return malloc(size);
144 }
145
146 if (size == 0) {
147 free(ptr);
148 return NULL;
149 }
150
151 return LOS_MemRealloc(OS_SYS_MEM_ADDR, ptr, size);
152 }
153