source: rtems/c/src/lib/libbsp/m68k/gen68360/startup/bspstart.c @ bd9c3d1

4.104.114.84.9
Last change on this file since bd9c3d1 was bd9c3d1, checked in by Joel Sherrill <joel.sherrill@…>, on Apr 15, 1998 at 8:50:31 PM

Numerous changes which in total greatly reduced the amount of source
code in each BSP's bspstart.c. These changes were:

+ confdefs.h now knows libio's semaphore requirements
+ shared/main.c now copies Configuration to BSP_Configuration
+ shared/main.c fills in the Cpu_table with default values

This removed the need for rtems_libio_config() and the constant
BSP_LIBIO_MAX_FDS in every BSP. Plus now the maximum number of open
files can now be set on the gcc command line.

  • Property mode set to 100644
File size: 2.7 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) 1989-1998.
8 *  On-Line Applications Research Corporation (OAR).
9 *  Copyright assigned to U.S. Government, 1994.
10 *
11 *  The license and distribution terms for this file may be
12 *  found in the file LICENSE in this distribution or at
13 *  http://www.OARcorp.com/rtems/license.html.
14 *
15 *  $Id$
16 */
17
18#include <bsp.h>
19#include <rtems/libio.h>
20 
21#include <libcsupport.h>
22 
23#include <string.h>
24 
25/*
26 *  The original table from the application and our copy of it with
27 *  some changes.
28 */
29
30extern rtems_configuration_table Configuration;
31rtems_configuration_table  BSP_Configuration;
32
33rtems_cpu_table Cpu_table;
34
35char *rtems_progname;
36
37/*
38 *  Use the shared implementations of the following routines
39 */
40 
41void bsp_postdriver_hook(void);
42void bsp_libc_init( void *, unsigned32, int );
43
44/*
45 *  Function:   bsp_pretasking_hook
46 *  Created:    95/03/10
47 *
48 *  Description:
49 *      BSP pretasking hook.  Called just before drivers are initialized.
50 *      Used to setup libc and install any BSP extensions.
51 *
52 *  NOTES:
53 *      Must not use libc (to do io) from here, since drivers are
54 *      not yet initialized.
55 *
56 */
57 
58void bsp_pretasking_hook(void)
59{
60    extern void *_HeapStart;
61    extern rtems_unsigned32 _HeapSize;
62
63    bsp_libc_init(&_HeapStart, _HeapSize, 0);
64 
65#ifdef RTEMS_DEBUG
66    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
67#endif
68}
69 
70/*
71 *  bsp_start
72 *
73 *  This routine does the bulk of the system initialization.
74 */
75
76void bsp_start( void )
77{
78  extern void *_WorkspaceBase;
79
80  /*
81   *  Allocate the memory for the RTEMS Work Space.  This can come from
82   *  a variety of places: hard coded address, malloc'ed from outside
83   *  RTEMS world (e.g. simulator or primitive memory manager), or (as
84   *  typically done by stock BSPs) by subtracting the required amount
85   *  of work space from the last physical address on the CPU board.
86   */
87#if 0
88  Cpu_table.interrupt_vector_table = (mc68000_isr *) 0/*&M68Kvec*/;
89#endif
90
91  /*
92   *  Need to "allocate" the memory for the RTEMS Workspace and
93   *  tell the RTEMS configuration where it is.  This memory is
94   *  not malloc'ed.  It is just "pulled from the air".
95   */
96
97  BSP_Configuration.work_space_start = (void *)&_WorkspaceBase;
98
99  /*
100   *  initialize the CPU table for this BSP
101   */
102
103  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
104  Cpu_table.postdriver_hook = bsp_postdriver_hook;
105  Cpu_table.do_zero_of_workspace = TRUE;
106  Cpu_table.interrupt_stack_size = 4096;
107}
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