1 files changed, 81 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/base_fs.c b/cpukit/libcsupport/src/base_fs.c
new file mode 100644
index 0000000000..c8c23e5b43
--- /dev/null
+++ b/cpukit/libcsupport/src/base_fs.c
@@ -0,0 +1,81 @@
+/*
+ *  Base file system initialization
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems.h>
+#include <rtems/libio.h>
+#include "imfs.h"
+#include "libio_.h"
+
+/*
+ *  Global information for the base file system.
+ */
+
+rtems_filesystem_location_info_t rtems_filesystem_current;
+rtems_filesystem_location_info_t rtems_filesystem_root;
+nlink_t                          rtems_filesystem_link_counts;
+
+/*
+ *  Default mode for created files.
+ */
+
+mode_t rtems_filesystem_umask;
+
+/*
+ *  rtems_filesystem_initialize
+ *
+ *  Initialize the foundation of the file system with one instantiation
+ *  of the IMFS with a single "/dev" directory in it.
+ */
+
+void rtems_filesystem_initialize( void )
+{
+  int                                   status;
+  rtems_filesystem_mount_table_entry_t *first_entry;
+
+  /*
+   *  Set the default umask to "022".
+   */
+
+  rtems_filesystem_umask = S_IWOTH | S_IROTH;
+
+  init_fs_mount_table();
+
+  status = mount( 
+     &first_entry,
+     &IMFS_ops,
+     "RW",
+     NULL,
+     NULL );
+  if( status == -1 ){
+    rtems_fatal_error_occurred( 0xABCD0002 );
+  }
+
+  rtems_filesystem_link_counts = 0;
+
+  rtems_filesystem_root    = first_entry->mt_fs_root;
+
+  rtems_filesystem_current = rtems_filesystem_root;
+
+  /*
+   *  Traditionally RTEMS devices are under "/dev" so install this directory.
+   *
+   *  If the mkdir() fails, we can't print anything so just fatal error.
+   *
+   *  NOTE: UNIX root is 755 and owned by root/root (0/0).
+   */
+
+  status = mkdir( "/dev", S_IRWXU | S_IRWXG | S_IRWXO );
+  if ( status != 0 )
+    rtems_fatal_error_occurred( 0xABCD0003 );
+}