source: rtems/c/src/lib/libbsp/m68k/mrm332/misc/interr.c @ 39d08d55

4.104.114.9
Last change on this file since 39d08d55 was 39d08d55, checked in by Ralf Corsepius <ralf.corsepius@…>, on Sep 6, 2008 at 5:36:55 PM

Convert to "bool".

  • Property mode set to 100644
File size: 2.8 KB
Line 
1/*
2 *  Internal Error Handler
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14#include <rtems/system.h>
15#include <rtems/score/interr.h>
16#include <rtems/score/sysstate.h>
17#include <rtems/score/userext.h>
18
19/*PAGE
20 *
21 *  _Internal_error_Occurred
22 *
23 *  This routine will invoke the fatal error handler supplied by the user
24 *  followed by the the default one provided by the executive.  The default
25 *  error handler assumes no hardware is present to help inform the user
26 *  of the problem.  Halt stores the error code in a known register,
27 *  disables interrupts, and halts the CPU.  If the CPU does not have a
28 *  halt instruction, it will loop to itself.
29 *
30 *  Input parameters:
31 *    the_source  - what subsystem the error originated in
32 *    is_internal - if the error was internally generated
33 *    the_error   - fatal error status code
34 *
35 *  Output parameters:
36 *    As much information as possible is stored in a CPU dependent fashion.
37 *    See the CPU dependent code for more information.
38 *
39 *  NOTE: The the_error is not necessarily a directive status code.
40 */
41
42/*
43 * Ugly hack.... _CPU_Fatal_halt() disonnects the bdm. Without this
44 * change, the_error is only known only to the cpu :).
45 *
46 * From "bsp.h" which is not yet available in the arch tree during
47 * this phase of install. jsg
48 */
49void outbyte(char);
50void bsp_cleanup( void );
51
52#define RAW_PUTS(str) \
53  { register char *ptr = str; \
54    while (*ptr) outbyte(*ptr++); \
55  }
56
57#define RAW_PUTI(n) { \
58    register int i, j; \
59    \
60    RAW_PUTS("0x"); \
61    for (i=28;i>=0;i -= 4) { \
62      j = (n>>i) & 0xf; \
63      outbyte( (j>9 ? j-10+'a' : j+'0') ); \
64    } \
65  }
66
67void volatile _Internal_error_Occurred(
68  Internal_errors_Source  the_source,
69  bool                    is_internal,
70  uint32_t                the_error
71)
72{
73
74  _Internal_errors_What_happened.the_source  = the_source;
75  _Internal_errors_What_happened.is_internal = is_internal;
76  _Internal_errors_What_happened.the_error   = the_error;
77
78  _User_extensions_Fatal( the_source, is_internal, the_error );
79
80  _System_state_Set( SYSTEM_STATE_FAILED );
81
82  /* try to print error message to outbyte */
83  RAW_PUTS("\r\nRTEMS: A fatal error has occured.\r\n");
84  RAW_PUTS("RTEMS:    fatal error ");
85  RAW_PUTI( the_error );
86  RAW_PUTS(" (");
87  outbyte( (char)((the_error>>24) & 0xff) );
88  outbyte( (char)((the_error>>16) & 0xff) );
89  outbyte( (char)((the_error>>8) & 0xff) );
90  outbyte( (char)(the_error & 0xff) );
91  RAW_PUTS(").\r\n");
92
93  /* configure peripherals for a safe exit */
94  bsp_cleanup();
95
96  _CPU_Fatal_halt( the_error );
97
98  /* will not return from this routine */
99}
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