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 "proc_fs.h"
33 #include "internal.h"
34 #include "stdio.h"
35 #include "sys/mount.h"
36 #include "sys/stat.h"
37 #include "los_init.h"
38
39 #ifdef LOSCFG_FS_PROC
40
41 #define PROCFS_MOUNT_POINT "/proc"
42 #define PROCFS_MOUNT_POINT_SIZE (sizeof(PROCFS_MOUNT_POINT) - 1)
43
ProcFsInit(void)44 void ProcFsInit(void)
45 {
46 int ret;
47
48 ret = mkdir(PROCFS_MOUNT_POINT, PROCFS_DEFAULT_MODE);
49 if (ret < 0) {
50 PRINT_ERR("failed to mkdir %s, errno = %d\n", PROCFS_MOUNT_POINT, get_errno());
51 return;
52 }
53
54 ret = mount(NULL, PROCFS_MOUNT_POINT, "procfs", 0, NULL);
55 if (ret) {
56 PRINT_ERR("mount procfs err %d\n", ret);
57 return;
58 }
59
60 ProcMountsInit();
61 #if defined(LOSCFG_SHELL_CMD_DEBUG) && defined(LOSCFG_KERNEL_VM)
62 ProcVmmInit();
63 #endif
64 ProcProcessInit();
65 ProcUptimeInit();
66 ProcFsCacheInit();
67 ProcFdInit();
68 #ifdef LOSCFG_KERNEL_PM
69 ProcPmInit();
70 #endif
71 #ifdef LOSCFG_PROC_PROCESS_DIR
72 ProcSysMemInfoInit();
73 ProcFileSysInit();
74 #endif
75 #ifdef LOSCFG_KERNEL_PLIMITS
76 ProcLimitsInit();
77 #endif
78 #ifdef LOSCFG_KERNEL_CONTAINER
79 ProcSysUserInit();
80 #endif
81 }
82
83 LOS_MODULE_INIT(ProcFsInit, LOS_INIT_LEVEL_KMOD_EXTENDED);
84
85 #endif
86