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 /**
33 * @defgroup los_vm_syscall vm syscall definition
34 * @ingroup kernel
35 */
36
37 #ifndef __LOS_VM_SYSCALL_H__
38 #define __LOS_VM_SYSCALL_H__
39
40 #include "sys/shm.h"
41 #include "sys/mman.h"
42
43 #ifdef __cplusplus
44 #if __cplusplus
45 extern "C" {
46 #endif /* __cplusplus */
47 #endif /* __cplusplus */
48
LOS_IsNamedMapping(unsigned long flags)49 STATIC INLINE BOOL LOS_IsNamedMapping(unsigned long flags)
50 {
51 return ((flags & MAP_ANONYMOUS) == 0);
52 }
53
LOS_IsAnonymousMapping(unsigned long flags)54 STATIC INLINE BOOL LOS_IsAnonymousMapping(unsigned long flags)
55 {
56 return ((flags & MAP_ANONYMOUS) == MAP_ANONYMOUS);
57 }
58
59 VADDR_T LOS_MMap(VADDR_T vaddr, size_t len, unsigned prot, unsigned long flags, int fd, unsigned long pgoff);
60 STATUS_T LOS_UnMMap(VADDR_T addr, size_t size);
61 VOID *LOS_DoBrk(VOID *addr);
62 INT32 LOS_DoMprotect(VADDR_T vaddr, size_t len, unsigned long prot);
63 VADDR_T LOS_DoMremap(VADDR_T oldAddress, size_t oldSize, size_t newSize, int flags, VADDR_T newAddr);
64 VOID LOS_DumpMemRegion(VADDR_T vaddr);
65 UINT32 ShmInit(VOID);
66 UINT32 ShmDeinit(VOID);
67 INT32 ShmGet(key_t key, size_t size, INT32 shmflg);
68 VOID *ShmAt(INT32 shmid, const VOID *shmaddr, INT32 shmflg);
69 INT32 ShmCtl(INT32 shmid, INT32 cmd, struct shmid_ds *buf);
70 INT32 ShmDt(const VOID *shmaddr);
71
72 #ifdef __cplusplus
73 #if __cplusplus
74 }
75 #endif /* __cplusplus */
76 #endif /* __cplusplus */
77
78 #endif /* __LOS_VM_SYSCALL_H__ */
79