1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 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 "sys/types.h"
33 #include "sys/shm.h"
34 #include "errno.h"
35 #include "unistd.h"
36 #include "los_vm_syscall.h"
37 #include "fs/file.h"
38
39
SysMmap(void * addr,size_t size,int prot,int flags,int fd,size_t offset)40 void *SysMmap(void *addr, size_t size, int prot, int flags, int fd, size_t offset)
41 {
42 /* Process fd convert to system global fd */
43 fd = GetAssociatedSystemFd(fd);
44
45 return (void *)LOS_MMap((uintptr_t)addr, size, prot, flags, fd, offset);
46 }
47
SysMunmap(void * addr,size_t size)48 int SysMunmap(void *addr, size_t size)
49 {
50 return LOS_UnMMap((uintptr_t)addr, size);
51 }
52
SysMremap(void * oldAddr,size_t oldLen,size_t newLen,int flags,void * newAddr)53 void *SysMremap(void *oldAddr, size_t oldLen, size_t newLen, int flags, void *newAddr)
54 {
55 return (void *)LOS_DoMremap((vaddr_t)oldAddr, oldLen, newLen, flags, (vaddr_t)newAddr);
56 }
57
SysMprotect(void * vaddr,size_t len,int prot)58 int SysMprotect(void *vaddr, size_t len, int prot)
59 {
60 return LOS_DoMprotect((uintptr_t)vaddr, len, (unsigned long)prot);
61 }
62
SysBrk(void * addr)63 void *SysBrk(void *addr)
64 {
65 return LOS_DoBrk(addr);
66 }
67
68 #ifdef LOSCFG_KERNEL_SHM
SysShmGet(key_t key,size_t size,int shmflg)69 int SysShmGet(key_t key, size_t size, int shmflg)
70 {
71 int ret;
72
73 ret = ShmGet(key, size, shmflg);
74 if (ret < 0) {
75 return -get_errno();
76 }
77
78 return ret;
79 }
80
SysShmAt(int shmid,const void * shmaddr,int shmflg)81 void *SysShmAt(int shmid, const void *shmaddr, int shmflg)
82 {
83 void *ret = NULL;
84
85 ret = ShmAt(shmid, shmaddr, shmflg);
86 if (ret == (void *)-1) {
87 return (void *)(intptr_t)-get_errno();
88 }
89
90 return ret;
91 }
92
SysShmCtl(int shmid,int cmd,struct shmid_ds * buf)93 int SysShmCtl(int shmid, int cmd, struct shmid_ds *buf)
94 {
95 int ret;
96
97 ret = ShmCtl(shmid, cmd, buf);
98 if (ret < 0) {
99 return -get_errno();
100 }
101
102 return ret;
103 }
104
SysShmDt(const void * shmaddr)105 int SysShmDt(const void *shmaddr)
106 {
107 int ret;
108
109 ret = ShmDt(shmaddr);
110 if (ret < 0) {
111 return -get_errno();
112 }
113
114 return ret;
115 }
116 #endif
117
118