source:
rtems/c/src/lib/libc/base_fs.c
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2e0fd427
Last change on this file since 2e0fd427 was 3ba74c73, checked in by Joel Sherrill <joel.sherrill@…>, on 11/01/00 at 21:08:14 | |
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1 | /* |
2 | * Base file system initialization |
3 | * |
4 | * COPYRIGHT (c) 1989-1999. |
5 | * On-Line Applications Research Corporation (OAR). |
6 | * |
7 | * The license and distribution terms for this file may be |
8 | * found in the file LICENSE in this distribution or at |
9 | * http://www.OARcorp.com/rtems/license.html. |
10 | * |
11 | * $Id$ |
12 | */ |
13 | |
14 | #include <rtems.h> |
15 | #include <rtems/libio.h> |
16 | #include <rtems/libio_.h> |
17 | |
18 | /* |
19 | * Global information for the base file system. |
20 | */ |
21 | |
22 | rtems_filesystem_location_info_t rtems_filesystem_current; |
23 | rtems_filesystem_location_info_t rtems_filesystem_root; |
24 | nlink_t rtems_filesystem_link_counts; |
25 | |
26 | /* |
27 | * Default mode for created files. |
28 | */ |
29 | |
30 | mode_t rtems_filesystem_umask; |
31 | |
32 | /* |
33 | * rtems_filesystem_initialize |
34 | * |
35 | * Initialize the foundation of the file system. This is specified |
36 | * by the structure rtems_filesystem_mount_table. The usual |
37 | * configuration is a single instantiation of the IMFS or miniIMFS with |
38 | * a single "/dev" directory in it. |
39 | */ |
40 | |
41 | void rtems_filesystem_initialize( void ) |
42 | { |
43 | #if !defined(RTEMS_UNIX) |
44 | #if 0 |
45 | int i; |
46 | #endif |
47 | int status; |
48 | rtems_filesystem_mount_table_entry_t *entry; |
49 | rtems_filesystem_mount_table_t *mt; |
50 | |
51 | /* |
52 | * Set the default umask to "022". |
53 | */ |
54 | |
55 | rtems_filesystem_umask = S_IWOTH | S_IROTH; |
56 | |
57 | init_fs_mount_table(); |
58 | |
59 | /* |
60 | * mount the first filesystem. |
61 | */ |
62 | |
63 | if ( rtems_filesystem_mount_table_size == 0 ) |
64 | rtems_fatal_error_occurred( 0xABCD0001 ); |
65 | |
66 | mt = &rtems_filesystem_mount_table[0]; |
67 | |
68 | status = mount( |
69 | &entry, mt->fs_ops, mt->fsoptions, mt->device, mt->mount_point ); |
70 | |
71 | if ( status == -1 ) |
72 | rtems_fatal_error_occurred( 0xABCD0002 ); |
73 | |
74 | rtems_filesystem_link_counts = 0; |
75 | rtems_filesystem_root = entry->mt_fs_root; |
76 | rtems_filesystem_current = rtems_filesystem_root; |
77 | |
78 | /* |
79 | * Traditionally RTEMS devices are under "/dev" so install this directory. |
80 | * |
81 | * If the mkdir() fails, we can't print anything so just fatal error. |
82 | * |
83 | * NOTE: UNIX root is 755 and owned by root/root (0/0). |
84 | */ |
85 | |
86 | status = mkdir( "/dev", S_IRWXU | S_IRWXG | S_IRWXO ); |
87 | if ( status != 0 ) |
88 | rtems_fatal_error_occurred( 0xABCD0003 ); |
89 | |
90 | /* |
91 | * This code if if'ed 0 out because you can't mount another |
92 | * filesystem properly until the mount point it will be |
93 | * mounted onto is created. Moreover, if it is going to |
94 | * use a device, then it is REALLY unfair to attempt this |
95 | * before device drivers are initialized. |
96 | */ |
97 | |
98 | #if 0 |
99 | /* |
100 | * Now if there are other filesystems to mount, go for it. |
101 | */ |
102 | |
103 | for ( i=1 ; i < rtems_filesystem_mount_table_size ; i++ ) { |
104 | mt = &rtems_filesystem_mount_table[0]; |
105 | |
106 | status = mount( |
107 | &entry, mt->fs_ops, mt->fsoptions, mt->device, mt->mount_point ); |
108 | |
109 | if ( status == -1 ) |
110 | rtems_fatal_error_occurred( 0xABCD0003 ); |
111 | } |
112 | #endif |
113 | #endif |
114 | } |
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