2008-09-17 Miao Yan <yanmiaobest@gmail.com>

	* Makefile.am, preinstall.am, libcsupport/Makefile.am,
	libcsupport/include/rtems/libcsupport.h,
	libcsupport/include/rtems/libio.h, libcsupport/src/base_fs.c,
	libcsupport/src/libio_init.c, libcsupport/src/newlibc_exit.c,
	libcsupport/src/newlibc_init.c, libcsupport/src/sync.c,
	libfs/Makefile.am, libfs/src/imfs/deviceio.c,
	sapi/include/confdefs.h: Merge GSOC project code to add simple device
	only filesystem (devfs), optionally completely drop out filesystem,
	and to clean up disabling newlib reentrancy support. This dropped 17K
	from the minimum.exe for sparc/sis and arm/rtl22xx_t now has a 15K
	code space.
	* libcsupport/src/__usrenv.c, libcsupport/src/newlibc_reent.c,
	libfs/src/devfs/devclose.c, libfs/src/devfs/devfs.h,
	libfs/src/devfs/devfs_eval.c, libfs/src/devfs/devfs_init.c,
	libfs/src/devfs/devfs_mknod.c, libfs/src/devfs/devfs_node_type.c,
	libfs/src/devfs/devfs_show.c, libfs/src/devfs/devioctl.c,
	libfs/src/devfs/devopen.c, libfs/src/devfs/devread.c,
	libfs/src/devfs/devstat.c, libfs/src/devfs/devwrite.c,
	libfs/src/imfs/deviceerrno.c: New files.
	* libcsupport/src/newlibc.c: Removed.

1 files changed, 0 insertions, 175 deletions

diff --git a/cpukit/libcsupport/src/newlibc.c b/cpukit/libcsupport/src/newlibc.c
deleted file mode 100644
index 79c1dc7dd4..0000000000
--- a/cpukit/libcsupport/src/newlibc.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- *  Implementation of hooks for the CYGNUS newlib libc
- *  These hooks set things up so that:
- *       + '_REENT' is switched at task switch time.
- *
- *  COPYRIGHT (c) 1994 by Division Incorporated
- *
- *  The license and distribution terms for this file may be
- *  found in the file LICENSE in this distribution or at
- *  http://www.rtems.com/license/LICENSE.
- *
- *  $Id$
- *
- */
-
-#if HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#define __RTEMS_VIOLATE_KERNEL_VISIBILITY__
-#include <rtems.h>
-
-#if defined(RTEMS_NEWLIB)
-#include <rtems/libcsupport.h>
-
-/* Since we compile with strict ANSI we need to undef it to get
- * prototypes for extensions
- */
-#undef __STRICT_ANSI__
-
-#include <stdlib.h>             /* for free() */
-#include <string.h>             /* for memset() */
-
-#include <sys/reent.h>          /* for extern of _REENT (aka _impure_ptr) */
-#include <errno.h>
-
-/*
- *  NOTE:
- *        There is some problem with doing this on the hpux version
- *        of the UNIX simulator (symptom is printf core dumps), so
- *        we just don't for now.
- *        Not sure if this is a problem with hpux, newlib, or something else.
- */
-
-#if defined(RTEMS_UNIX) && !defined(hpux)
-#define NEED_SETVBUF
-#endif
-
-#include <stdio.h>
-
-int _fwalk(struct _reent *ptr, int (*function) (FILE *) );
-
-extern struct _reent    libc_global_reent __ATTRIBUTE_IMPURE_PTR__;
-
-/*
- * reent struct allocation moved here from libc_start_hook() to avoid
- * mutual exclusion problems when memory is allocated from the start hook.
- *
- * Memory is also now allocated from the workspace rather than the heap.
- *  -- ptorre 9/30/03
- */
-bool libc_create_hook(
-  rtems_tcb *current_task,
-  rtems_tcb *creating_task
-)
-{
-  struct _reent *ptr;
-
-  /*  NOTE: The RTEMS malloc is reentrant without a reent ptr since
-   *        it is based on the Classic API Region Manager.
-   */
-
-  #define REENT_MALLOCED 0
-  #if REENT_MALLOCED
-    ptr = (struct _reent *) calloc(1, sizeof(struct _reent));
-  #else
-    /* It is OK to allocate from the workspace because these
-     * hooks run with thread dispatching disabled.
-     */
-    ptr = (struct _reent *) _Workspace_Allocate(sizeof(struct _reent));
-  #endif
-
-  if (ptr) {
-
-      _REENT_INIT_PTR((ptr)); /* GCC extension: structure constants */
-      creating_task->libc_reent = ptr;
-      return true;
-  }
-  else
-    return false;
-}
-
-/*
- * Called for all user TASKS (system tasks are MPCI Receive Server and IDLE)
- */
-
-#ifdef NEED_SETVBUF
-rtems_extension libc_begin_hook(rtems_tcb *current_task)
-{
-  setvbuf( stdout, NULL, _IOLBF, BUFSIZ );
-}
-#endif
-
-/*
- *  Called when a task is deleted.
- *  Must restore the new lib reentrancy state for the new current
- *  task.
- *
- */
-
-int newlib_free_buffers(
-  FILE *fp
-)
-{
-  switch ( fileno(fp) ) {
-    case 0:
-    case 1:
-    case 2:
-      if (fp->_flags & __SMBF) {
-        free( fp->_bf._base );
-        fp->_flags &= ~__SMBF;
-        fp->_bf._base = fp->_p = (unsigned char *) NULL;
-      }
-      break;
-    default:
-     fclose(fp);
-  }
-  return 0;
-}
-
-rtems_extension libc_delete_hook(
-  rtems_tcb *current_task,
-  rtems_tcb *deleted_task
-)
-{
-  struct _reent *ptr;
-
-  /*
-   * The reentrancy structure was allocated by newlib using malloc()
-   */
-
-  if (current_task == deleted_task) {
-    ptr = _REENT;
-  } else {
-    ptr = deleted_task->libc_reent;
-  }
-
-  if (ptr && ptr != &libc_global_reent) {
-/*
-    _wrapup_reent(ptr);
-    _reclaim_reent(ptr);
-*/
-    /*
-     *  Just in case there are some buffers lying around.
-     */
-    _fwalk(ptr, newlib_free_buffers);
-#if REENT_MALLOCED
-    free(ptr);
-#else
-    _Workspace_Free(ptr);
-#endif
-  }
-
-  deleted_task->libc_reent = NULL;
-
-  /*
-   * Require the switch back to another task to install its own
-   */
-
-  if ( current_task == deleted_task ) {
-    _REENT = 0;
-  }
-}
-
-#endif