1 /*
2 * Copyright (c) 2019, The Linux Foundation. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer in the documentation and/or other materials provided
12 * with the distribution.
13 * * Neither the name of The Linux Foundation nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 /*
31 =======================================================================
32
33 FILE: std_mem.c
34
35 SERVICES: apiOne std lib memory operations stuff
36
37 */
38
39 #include <string.h>
40 #include "AEEstd.h"
41 #include "AEEStdErr.h"
42
43 #if defined __hexagon__
44 #include "stringl/stringl.h"
45
46 //Add a weak reference so shared objects work with older images
47 #pragma weak memscpy
48 #pragma weak memsmove
49 #endif /*__hexagon__*/
50
std_memset(void * p,int c,int nLen)51 void* std_memset(void* p, int c, int nLen)
52 {
53 if (nLen < 0) {
54 return p;
55 }
56 return memset(p, c, (size_t)nLen);
57 }
58
std_memmove(void * pTo,const void * cpFrom,int nLen)59 void* std_memmove(void* pTo, const void* cpFrom, int nLen)
60 {
61 if (nLen <= 0) {
62 return pTo;
63 }
64 #ifdef __hexagon__
65 std_memsmove(pTo, (size_t)nLen, cpFrom, (size_t)nLen);
66 return pTo;
67 #else
68 return memmove(pTo, cpFrom, (size_t)nLen);
69 #endif
70 }
71
std_memscpy(void * dst,int dst_size,const void * src,int src_size)72 int std_memscpy(void *dst, int dst_size, const void *src, int src_size){
73 size_t copy_size = 0;
74
75 if(dst_size <0 || src_size <0){
76 return AEE_EBADSIZE;
77 }
78
79 #if defined (__hexagon__)
80 if (memscpy){
81 return memscpy(dst,dst_size,src,src_size);
82 }
83 #endif
84
85 copy_size = (dst_size <= src_size)? dst_size : src_size;
86 memcpy(dst, src, copy_size);
87 return copy_size;
88 }
89
std_memsmove(void * dst,int dst_size,const void * src,int src_size)90 int std_memsmove(void *dst, int dst_size, const void *src, int src_size){
91 size_t copy_size = 0;
92
93 if(dst_size <0 || src_size <0){
94 return AEE_EBADSIZE;
95 }
96
97 #if defined (__hexagon__)
98 if (memsmove){
99 return memsmove(dst,dst_size,src,src_size);
100 }
101 #endif
102
103 copy_size = (dst_size <= src_size)? dst_size : src_size;
104 memmove(dst, src, copy_size);
105 return copy_size;
106 }
107
108