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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [base_fs.c] - Blame information for rev 173

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/*
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 *  Base file system initialization
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: base_fs.c,v 1.2 2001-09-27 12:01:15 chris Exp $
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 */
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#include <rtems.h>
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#include <rtems/libio.h>
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#include "imfs.h"
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#include "libio_.h"
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/*
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 *  Global information for the base file system.
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 */
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rtems_filesystem_location_info_t rtems_filesystem_current;
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rtems_filesystem_location_info_t rtems_filesystem_root;
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nlink_t                          rtems_filesystem_link_counts;
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/*
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 *  Default mode for created files.
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 */
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mode_t rtems_filesystem_umask;
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/*
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 *  rtems_filesystem_initialize
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 *
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 *  Initialize the foundation of the file system with one instantiation
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 *  of the IMFS with a single "/dev" directory in it.
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 */
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void rtems_filesystem_initialize( void )
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{
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#if !defined(RTEMS_UNIX)
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#if 0
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  int                                   i;
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#endif
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  int                                   status;
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  rtems_filesystem_mount_table_entry_t *entry;
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  rtems_filesystem_mount_table_t       *mt;
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  /*
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   *  Set the default umask to "022".
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   */
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  rtems_filesystem_umask = S_IWOTH | S_IROTH;
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  init_fs_mount_table();
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  /*
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   *  mount the first filesystem.
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   */
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  if ( rtems_filesystem_mount_table_size == 0 )
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    rtems_fatal_error_occurred( 0xABCD0001 );
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  mt = &rtems_filesystem_mount_table[0];
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  status = mount(
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     &entry, mt->fs_ops, mt->fsoptions, mt->device, mt->mount_point );
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  if ( status == -1 )
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    rtems_fatal_error_occurred( 0xABCD0002 );
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  rtems_filesystem_link_counts = 0;
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  rtems_filesystem_root        = entry->mt_fs_root;
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  rtems_filesystem_current     = rtems_filesystem_root;
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  /*
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   *  Traditionally RTEMS devices are under "/dev" so install this directory.
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   *
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   *  If the mkdir() fails, we can't print anything so just fatal error.
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   *
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   *  NOTE: UNIX root is 755 and owned by root/root (0/0).
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   */
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  status = mkdir( "/dev", S_IRWXU | S_IRWXG | S_IRWXO );
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  if ( status != 0 )
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    rtems_fatal_error_occurred( 0xABCD0003 );
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  /*
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   *  This code if if'ed 0 out because you can't mount another
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   *  filesystem properly until the mount point it will be
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   *  mounted onto is created.  Moreover, if it is going to
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   *  use a device, then it is REALLY unfair to attempt this
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   *  before device drivers are initialized.
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   */
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#if 0
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  /*
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   *  Now if there are other filesystems to mount, go for it.
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   */
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  for ( i=1 ; i < rtems_filesystem_mount_table_size ; i++ ) {
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    mt = &rtems_filesystem_mount_table[0];
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    status = mount(
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       &entry, mt->fs_ops, mt->fsoptions, mt->device, mt->mount_point );
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    if ( status == -1 )
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      rtems_fatal_error_occurred( 0xABCD0003 );
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  }
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#endif
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#endif
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}

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