source: rtems/c/src/lib/libbsp/sh/shared/bspgetworkarea.c @ b1ded240

4.104.115
Last change on this file since b1ded240 was 5e8726d0, checked in by Joel Sherrill <joel.sherrill@…>, on Sep 15, 2008 at 7:18:45 PM

2008-09-15 Joel Sherrill <joel.sherrill@…>

  • shared/bspgetworkarea.c, shared/bsphwinit.c, shared/bspstart.c: New files.
  • Property mode set to 100644
File size: 892 bytes
Line 
1/*
2 *  The license and distribution terms for this file may be
3 *  found in the file LICENSE in this distribution or at
4 *  http://www.rtems.com/license/LICENSE.
5 *
6 *  $Id$
7 */
8
9#include <bsp.h>
10#include <bsp/bootcard.h>
11#include <stdint.h>
12
13extern void *RamBase;
14extern void *RamSize;
15extern void *WorkSpaceStart;
16
17/*
18 *  This method returns the base address and size of the area which
19 *  is to be allocated between the RTEMS Workspace and the C Program
20 *  Heap.
21 */
22void bsp_get_work_area(
23  void   **work_area_start,
24  size_t  *work_area_size,
25  void   **heap_start,
26  size_t  *heap_size
27)
28{
29  uintptr_t size;
30
31  size = (uintptr_t)&RamBase + (uintptr_t)&RamSize
32         - (uintptr_t)&WorkSpaceStart;
33
34  *work_area_start = (void *)&WorkSpaceStart;
35  *work_area_size  = size;
36  *heap_start      = BSP_BOOTCARD_HEAP_USES_WORK_AREA;
37  *heap_size       = BSP_BOOTCARD_HEAP_SIZE_DEFAULT;
38}
39
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