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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [ARM7_LPC2368_Eclipse/] [RTOSDemo/] [syscalls.c] - Blame information for rev 867

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Line No. Rev Author Line
1 577 jeremybenn
/****************************************************************************
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*  Copyright (c) 2009 by Michael Fischer. All rights reserved.
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*
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*  Redistribution and use in source and binary forms, with or without
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*  modification, are permitted provided that the following conditions
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*  are met:
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*
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*  1. Redistributions of source code must retain the above copyright
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*     notice, this list of conditions and the following disclaimer.
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*  2. Redistributions in binary form must reproduce the above copyright
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*     notice, this list of conditions and the following disclaimer in the
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*     documentation and/or other materials provided with the distribution.
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*  3. Neither the name of the author nor the names of its contributors may
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*     be used to endorse or promote products derived from this software
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*     without specific prior written permission.
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*
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*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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*  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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*  THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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*  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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*  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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*  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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*  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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*  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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*  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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*  SUCH DAMAGE.
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*
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****************************************************************************
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*  History:
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*
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*  28.03.09  mifi   First Version, based on the original syscall.c from
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*                   newlib version 1.17.0
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****************************************************************************/
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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/***************************************************************************/
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int _read_r (struct _reent *r, int file, char * ptr, int len)
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{
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  r = r;
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  file = file;
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  ptr = ptr;
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  len = len;
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  errno = EINVAL;
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  return -1;
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}
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/***************************************************************************/
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int _lseek_r (struct _reent *r, int file, int ptr, int dir)
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{
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  r = r;
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  file = file;
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  ptr = ptr;
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  dir = dir;
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  return 0;
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}
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/***************************************************************************/
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int _write_r (struct _reent *r, int file, char * ptr, int len)
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{
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  r = r;
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  file = file;
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  ptr = ptr;
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#if 0
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  int index;
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  /* For example, output string by UART */
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  for(index=0; index<len; index++)
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  {
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    if (ptr[index] == '\n')
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    {
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      uart_putc('\r');
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    }
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    uart_putc(ptr[index]);
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  }
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#endif   
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  return len;
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}
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/***************************************************************************/
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int _close_r (struct _reent *r, int file)
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{
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  return 0;
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}
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/***************************************************************************/
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/* Register name faking - works in collusion with the linker.  */
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register char * stack_ptr __asm ("sp");
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caddr_t _sbrk_r (struct _reent *r, int incr)
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{
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  extern char   end __asm ("end"); /* Defined by the linker.  */
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  static char * heap_end;
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  char *        prev_heap_end;
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  if (heap_end == NULL)
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    heap_end = & end;
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  prev_heap_end = heap_end;
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  if (heap_end + incr > stack_ptr)
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  {
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      /* Some of the libstdc++-v3 tests rely upon detecting
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        out of memory errors, so do not abort here.  */
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#if 0
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      extern void abort (void);
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      _write (1, "_sbrk: Heap and stack collision\n", 32);
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      abort ();
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#else
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      errno = ENOMEM;
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      return (caddr_t) -1;
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#endif
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  }
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  heap_end += incr;
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  return (caddr_t) prev_heap_end;
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}
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/***************************************************************************/
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int _fstat_r (struct _reent *r, int file, struct stat * st)
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{
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  r = r;
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  file = file;
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  memset (st, 0, sizeof (* st));
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  st->st_mode = S_IFCHR;
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  return 0;
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}
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/***************************************************************************/
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int _isatty_r(struct _reent *r, int fd)
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{
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  r = r;
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  fd = fd;
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  return 1;
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}
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/*** EOF ***/
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