1 | /* |
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2 | * Base file system initialization |
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3 | * |
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4 | * COPYRIGHT (c) 1989-1998. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * Copyright assigned to U.S. Government, 1994. |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.OARcorp.com/rtems/license.html. |
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11 | * |
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12 | * $Id$ |
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13 | */ |
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14 | |
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15 | #include <rtems.h> |
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16 | #include <rtems/libio.h> |
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17 | #include "imfs.h" |
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18 | #include "libio_.h" |
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19 | |
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20 | /* |
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21 | * Global information for the base file system. |
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22 | */ |
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23 | |
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24 | rtems_filesystem_location_info_t rtems_filesystem_current; |
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25 | rtems_filesystem_location_info_t rtems_filesystem_root; |
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26 | nlink_t rtems_filesystem_link_counts; |
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27 | |
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28 | /* |
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29 | * Default mode for created files. |
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30 | */ |
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31 | |
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32 | mode_t rtems_filesystem_umask; |
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33 | |
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34 | /* |
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35 | * rtems_filesystem_initialize |
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36 | * |
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37 | * Initialize the foundation of the file system with one instantiation |
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38 | * of the IMFS with a single "/dev" directory in it. |
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39 | */ |
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40 | |
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41 | void rtems_filesystem_initialize( void ) |
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42 | { |
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43 | #if !defined(RTEMS_UNIX) |
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44 | int status; |
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45 | rtems_filesystem_mount_table_entry_t *first_entry; |
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46 | |
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47 | /* |
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48 | * Set the default umask to "022". |
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49 | */ |
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50 | |
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51 | rtems_filesystem_umask = S_IWOTH | S_IROTH; |
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52 | |
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53 | init_fs_mount_table(); |
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54 | |
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55 | /* |
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56 | * mount the first filesystem. |
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57 | * |
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58 | * NOTE: XXX This really needs to be read from a table of filesystems |
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59 | * to mount initially and the miniIMFS needs to be shaken out. |
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60 | */ |
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61 | |
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62 | status = mount( |
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63 | &first_entry, |
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64 | &IMFS_ops, |
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65 | RTEMS_FILESYSTEM_READ_WRITE, |
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66 | NULL, |
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67 | NULL ); |
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68 | if( status == -1 ){ |
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69 | rtems_fatal_error_occurred( 0xABCD0002 ); |
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70 | } |
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71 | |
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72 | rtems_filesystem_link_counts = 0; |
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73 | |
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74 | rtems_filesystem_root = first_entry->mt_fs_root; |
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75 | |
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76 | rtems_filesystem_current = rtems_filesystem_root; |
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77 | |
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78 | /* |
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79 | * Traditionally RTEMS devices are under "/dev" so install this directory. |
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80 | * |
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81 | * If the mkdir() fails, we can't print anything so just fatal error. |
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82 | * |
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83 | * NOTE: UNIX root is 755 and owned by root/root (0/0). |
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84 | */ |
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85 | |
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86 | status = mkdir( "/dev", S_IRWXU | S_IRWXG | S_IRWXO ); |
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87 | if ( status != 0 ) |
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88 | rtems_fatal_error_occurred( 0xABCD0003 ); |
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89 | #endif |
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90 | } |
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