source: rtems/c/src/lib/libc/base_fs.c @ 70810dc

4.104.114.84.95
Last change on this file since 70810dc was 08311cc3, checked in by Joel Sherrill <joel.sherrill@…>, on 11/17/99 at 17:51:34

Updated copyright notice.

  • Property mode set to 100644
File size: 2.7 KB
Line 
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 "imfs.h"
17#include "libio_.h"
18
19/*
20 *  Global information for the base file system.
21 */
22
23rtems_filesystem_location_info_t rtems_filesystem_current;
24rtems_filesystem_location_info_t rtems_filesystem_root;
25nlink_t                          rtems_filesystem_link_counts;
26
27/*
28 *  Default mode for created files.
29 */
30
31mode_t rtems_filesystem_umask;
32
33/*
34 *  rtems_filesystem_initialize
35 *
36 *  Initialize the foundation of the file system with one instantiation
37 *  of the IMFS with a single "/dev" directory in it.
38 */
39
40void rtems_filesystem_initialize( void )
41{
42#if !defined(RTEMS_UNIX)
43#if 0
44  int                                   i;
45#endif
46  int                                   status;
47  rtems_filesystem_mount_table_entry_t *entry;
48  rtems_filesystem_mount_table_t       *mt;
49 
50  /*
51   *  Set the default umask to "022".
52   */
53
54  rtems_filesystem_umask = S_IWOTH | S_IROTH;
55
56  init_fs_mount_table();
57
58  /*
59   *  mount the first filesystem.
60   */
61
62  if ( rtems_filesystem_mount_table_size == 0 )
63    rtems_fatal_error_occurred( 0xABCD0001 );
64
65  mt = &rtems_filesystem_mount_table[0];
66
67  status = mount(
68     &entry, mt->fs_ops, mt->fsoptions, mt->device, mt->mount_point );
69
70  if ( status == -1 )
71    rtems_fatal_error_occurred( 0xABCD0002 );
72
73  rtems_filesystem_link_counts = 0;
74  rtems_filesystem_root        = entry->mt_fs_root;
75  rtems_filesystem_current     = rtems_filesystem_root;
76
77  /*
78   *  Traditionally RTEMS devices are under "/dev" so install this directory.
79   *
80   *  If the mkdir() fails, we can't print anything so just fatal error.
81   *
82   *  NOTE: UNIX root is 755 and owned by root/root (0/0).
83   */
84
85  status = mkdir( "/dev", S_IRWXU | S_IRWXG | S_IRWXO );
86  if ( status != 0 )
87    rtems_fatal_error_occurred( 0xABCD0003 );
88
89  /*
90   *  This code if if'ed 0 out because you can't mount another
91   *  filesystem properly until the mount point it will be
92   *  mounted onto is created.  Moreover, if it is going to
93   *  use a device, then it is REALLY unfair to attempt this
94   *  before device drivers are initialized.
95   */
96
97#if 0
98  /*
99   *  Now if there are other filesystems to mount, go for it.
100   */
101
102  for ( i=1 ; i < rtems_filesystem_mount_table_size ; i++ ) {
103    mt = &rtems_filesystem_mount_table[0];
104
105    status = mount(
106       &entry, mt->fs_ops, mt->fsoptions, mt->device, mt->mount_point );
107
108    if ( status == -1 )
109      rtems_fatal_error_occurred( 0xABCD0003 );
110  }
111#endif
112#endif
113}
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