source: rtems/c/src/lib/libbsp/h8300/h8sim/startup/bspstart.c @ db3ca1f

4.104.114.84.95
Last change on this file since db3ca1f was db3ca1f, checked in by Joel Sherrill <joel.sherrill@…>, on 08/05/02 at 16:55:50

2002-08-05 Joel Sherrill <joel@…>

  • startup/bspstart.c, startup/linkcmds: Per PR247 , fix the linkcmds to avoid overlapping sections and reworked the way the heap and workspace are calculated.
  • Property mode set to 100644
File size: 2.4 KB
Line 
1/*
2 *  This routine starts the application.  It includes application,
3 *  board, and monitor specific initialization and configuration.
4 *  The generic CPU dependent initialization has been performed
5 *  before this routine is invoked.
6 *
7 *  COPYRIGHT (c) 1989-1999.
8 *  On-Line Applications Research Corporation (OAR).
9 *
10 *  The license and distribution terms for this file may be
11 *  found in the file LICENSE in this distribution or at
12 *  http://www.OARcorp.com/rtems/license.html.
13 *
14 *  $Id$
15 */
16
17#include <string.h>
18
19#include <bsp.h>
20#include <rtems/libio.h>
21#include <rtems/libcsupport.h>
22 
23/*
24 *  The original table from the application and our copy of it with
25 *  some changes.
26 */
27
28extern rtems_configuration_table Configuration;
29
30rtems_configuration_table  BSP_Configuration;
31
32rtems_cpu_table Cpu_table;
33
34char *rtems_progname;
35
36/*
37 *  Use the shared implementations of the following routines
38 */
39 
40void bsp_postdriver_hook(void);
41void bsp_libc_init( void *, unsigned32, int );
42
43/*
44 *  Function:   bsp_pretasking_hook
45 *  Created:    95/03/10
46 *
47 *  Description:
48 *      BSP pretasking hook.  Called just before drivers are initialized.
49 *      Used to setup libc and install any BSP extensions.
50 *
51 *  NOTES:
52 *      Must not use libc (to do io) from here, since drivers are
53 *      not yet initialized.
54 *
55 */
56 
57void bsp_pretasking_hook(void)
58{
59    void         *heapStart;
60    unsigned long heapSize;
61    unsigned long ramSpace;
62    extern int WorkspaceBase;
63
64    heapStart =  (void *)
65       ((unsigned long)&WorkspaceBase + BSP_Configuration.work_space_size);
66    if ( (unsigned long) heapStart > (256 * 1024) )
67       rtems_fatal_error_occurred (('H'<<24) | ('E'<<16) | ('A'<<8) | 'P');
68    heapSize = (256 * 1024) - (unsigned long)(heapStart);
69    bsp_libc_init(heapStart, heapSize, 0);
70
71#ifdef RTEMS_DEBUG
72    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
73#endif
74
75}
76 
77/*
78 *  bsp_start
79 *
80 *  This routine does the bulk of the system initialization.
81 */
82
83void bsp_start( void )
84{
85  extern int WorkspaceBase;
86  /* Configure Number of Register Caches */
87
88  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
89  Cpu_table.postdriver_hook = bsp_postdriver_hook;
90  Cpu_table.interrupt_stack_size = 4096;
91
92/*
93  if ( BSP_Configuration.work_space_size >(512*1024) )
94   _sys_exit( 1 );
95*/
96
97  BSP_Configuration.work_space_start = (void *) &WorkspaceBase;
98}
99
100H8BD_Install_IRQ() {}
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