1 /*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 /**
17 *************************************************************************
18 * @file M4PSW_MemoryInterface.c
19 * @brief Memory Interface
20 * @note Implementation of the osal memory functions
21 *************************************************************************
22 */
23
24 #include <stdlib.h>
25 #include <memory.h>
26
27 #include <time.h>
28 #include "M4OSA_Memory.h"
29 #ifndef M4VPS_ADVANCED_MEMORY_MANAGER
30 /**
31 ************************************************************************
32 * @fn M4OSA_MemAddr32 M4OSA_32bitAlignedMalloc(M4OSA_UInt32 size,
33 * M4OSA_CoreID coreID,
34 * M4OSA_Char* string)
35 * @brief this function allocates a memory block (at least 32 bits aligned)
36 * @note
37 * @param size (IN): size of allocated block in bytes
38 * @param coreID (IN): identification of the caller component
39 * @param string (IN): description of the allocated block (null terminated)
40 * @return address of the allocated block, M4OSA_NULL if no memory available
41 ************************************************************************
42 */
43
M4OSA_32bitAlignedMalloc(M4OSA_UInt32 size,M4OSA_CoreID coreID,M4OSA_Char * string)44 M4OSA_MemAddr32 M4OSA_32bitAlignedMalloc(M4OSA_UInt32 size,
45 M4OSA_CoreID coreID,
46 M4OSA_Char* string)
47 {
48 M4OSA_MemAddr32 Address = M4OSA_NULL;
49
50 /**
51 * If size is 0, malloc on WIN OS allocates a zero-length item in
52 * the heap and returns a valid pointer to that item.
53 * On other platforms, malloc could returns an invalid pointer
54 * So, DON'T allocate memory of 0 byte */
55 if (size == 0)
56 {
57 return Address;
58 }
59
60 if (size%4 != 0)
61 {
62 size = size + 4 - (size%4);
63 }
64
65 Address = (M4OSA_MemAddr32) malloc(size);
66
67 return Address;
68 }
69
70 #endif
71
72