source: rtems/c/src/lib/libbsp/m68k/efi332/misc/interr.c @ 674c900

4.104.114.84.95
Last change on this file since 674c900 was 98e4ebf, checked in by Joel Sherrill <joel.sherrill@…>, on Oct 8, 1997 at 3:45:54 PM

Fixed typo in the pointer to the license terms.

  • Property mode set to 100644
File size: 2.6 KB
Line 
1/*
2 *  Internal Error Handler
3 *
4 *  COPYRIGHT (c) 1989-1997.
5 *  On-Line Applications Research Corporation (OAR).
6 *  Copyright assigned to U.S. Government, 1994.
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.OARcorp.com/rtems/license.html.
11 *
12 *  $Id$
13 */
14
15#include <rtems/system.h>
16#include <rtems/score/interr.h>
17#include <rtems/score/sysstate.h>
18#include <rtems/score/userext.h>
19
20/*PAGE
21 *
22 *  _Internal_error_Occurred
23 *
24 *  This routine will invoke the fatal error handler supplied by the user
25 *  followed by the the default one provided by the executive.  The default
26 *  error handler assumes no hardware is present to help inform the user
27 *  of the problem.  Halt stores the error code in a known register,
28 *  disables interrupts, and halts the CPU.  If the CPU does not have a
29 *  halt instruction, it will loop to itself.
30 *
31 *  Input parameters:
32 *    the_source  - what subsystem the error originated in
33 *    is_internal - if the error was internally generated
34 *    the_error   - fatal error status code
35 *
36 *  Output parameters:
37 *    As much information as possible is stored in a CPU dependent fashion.
38 *    See the CPU dependent code for more information.
39 *
40 *  NOTE: The the_error is not necessarily a directive status code.
41 */
42
43/*
44 * Ugly hack.... _CPU_Fatal_halt() disonnects the bdm. Without this
45 * change, the_error is only known only to the cpu :).
46 *
47 * From "bsp.h" which is not yet available in the arch tree during
48 * this phase of install. jsg
49 */
50void outbyte(char);
51void bsp_cleanup( void );
52
53#define RAW_PUTS(str) \
54  { register char *ptr = str; \
55    while (*ptr) outbyte(*ptr++); \
56  }
57
58#define RAW_PUTI(n) { \
59    register int i, j; \
60    \
61    RAW_PUTS("0x"); \
62    for (i=28;i>=0;i -= 4) { \
63      j = (n>>i) & 0xf; \
64      outbyte( (j>9 ? j-10+'a' : j+'0') ); \
65    } \
66  }
67
68void volatile _Internal_error_Occurred(
69  Internal_errors_Source  the_source,
70  boolean                 is_internal,
71  unsigned32              the_error
72)
73{
74
75  Internal_errors_What_happened.the_source  = the_source;
76  Internal_errors_What_happened.is_internal = is_internal;
77  Internal_errors_What_happened.the_error   = the_error;
78
79  _User_extensions_Fatal( the_source, is_internal, the_error );
80
81  _System_state_Set( SYSTEM_STATE_FAILED );
82
83  /* try to print error message to outbyte */
84  RAW_PUTS("\r\nRTEMS: A fatal error has occured.\r\n");
85  RAW_PUTS("RTEMS:    fatal error ");
86  RAW_PUTI( the_error );
87  RAW_PUTS(".\r\n");
88
89  /* configure peripherals for a safe exit */
90  bsp_cleanup();
91
92  _CPU_Fatal_halt( the_error );
93
94  /* will not return from this routine */
95}
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