source: rtems/c/src/lib/libc/base_fs.c @ 2a929cc

4.104.114.84.95
Last change on this file since 2a929cc was 2a929cc, checked in by Joel Sherrill <joel.sherrill@…>, on Jan 25, 2001 at 3:59:58 PM

2001-01-25 Fernando Ruiz <fernando.ruiz@…>

  • Alternate email is correo@…
  • libc/privateenv.c: New file.
  • include/rtems/libio_.h, libc/Makefile.am, libc/base_fs.c, libc/unmount.c: Moved default umask, current working directory, root, and links followed count into a structure "user environment" that can then be treated as a unit. This enable giving unique copies of these to individual threads or collection of threads.
  • Property mode set to 100644
File size: 2.8 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#if HAVE_CONFIG_H
15#include "config.h"
16#endif
17
18#include <rtems.h>
19#include <rtems/libio.h>
20#include <rtems/libio_.h>
21
22/*
23 *  Global information for the base file system.
24 */
25
26rtems_user_env_t   rtems_global_user_env;
27rtems_user_env_t * rtems_current_user_env = &rtems_global_user_env;
28
29/*
30 *  Default mode for created files.
31 */
32
33
34/*
35 *  rtems_filesystem_initialize
36 *
37 *  Initialize the foundation of the file system.  This is specified
38 *  by the structure rtems_filesystem_mount_table.  The usual
39 *  configuration is a single instantiation of the IMFS or miniIMFS with
40 *  a single "/dev" directory in it.
41 */
42
43void rtems_filesystem_initialize( void )
44{
45#if !defined(RTEMS_UNIX)
46#if 0
47  int                                   i;
48#endif
49  int                                   status;
50  rtems_filesystem_mount_table_entry_t *entry;
51  rtems_filesystem_mount_table_t       *mt;
52 
53  /*
54   *  Set the default umask to "022".
55   */
56
57  rtems_filesystem_umask = S_IWOTH | S_IROTH;
58
59  init_fs_mount_table();
60
61  /*
62   *  mount the first filesystem.
63   */
64
65  if ( rtems_filesystem_mount_table_size == 0 )
66    rtems_fatal_error_occurred( 0xABCD0001 );
67
68  mt = &rtems_filesystem_mount_table[0];
69
70  status = mount(
71     &entry, mt->fs_ops, mt->fsoptions, mt->device, mt->mount_point );
72
73  if ( status == -1 )
74    rtems_fatal_error_occurred( 0xABCD0002 );
75
76  rtems_filesystem_link_counts = 0;
77  rtems_filesystem_root        = entry->mt_fs_root;
78  rtems_filesystem_current     = rtems_filesystem_root;
79
80  /*
81   *  Traditionally RTEMS devices are under "/dev" so install this directory.
82   *
83   *  If the mkdir() fails, we can't print anything so just fatal error.
84   *
85   *  NOTE: UNIX root is 755 and owned by root/root (0/0).
86   */
87
88  status = mkdir( "/dev", S_IRWXU | S_IRWXG | S_IRWXO );
89  if ( status != 0 )
90    rtems_fatal_error_occurred( 0xABCD0003 );
91
92  /*
93   *  This code if if'ed 0 out because you can't mount another
94   *  filesystem properly until the mount point it will be
95   *  mounted onto is created.  Moreover, if it is going to
96   *  use a device, then it is REALLY unfair to attempt this
97   *  before device drivers are initialized.
98   */
99
100#if 0
101  /*
102   *  Now if there are other filesystems to mount, go for it.
103   */
104
105  for ( i=1 ; i < rtems_filesystem_mount_table_size ; i++ ) {
106    mt = &rtems_filesystem_mount_table[0];
107
108    status = mount(
109       &entry, mt->fs_ops, mt->fsoptions, mt->device, mt->mount_point );
110
111    if ( status == -1 )
112      rtems_fatal_error_occurred( 0xABCD0003 );
113  }
114#endif
115#endif
116}
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