source: rtems/cpukit/score/src/interr.c @ 1906a36

4.11
Last change on this file since 1906a36 was 1906a36, checked in by Sebastian Huber <sebastian.huber@…>, on Nov 18, 2012 at 6:51:10 PM

score: Change _Internal_error_Occurred()

Call the fatal handlers of the user extensions before the update of
_Internal_errors_What_happened. This reduces the requirements on the
execution context further. Now a valid read-write data is only required
after the call to the fatal handlers.

  • Property mode set to 100644
File size: 1.9 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
12#if HAVE_CONFIG_H
13#include "config.h"
14#endif
15
16#include <rtems/system.h>
17#include <rtems/score/interr.h>
18#include <rtems/score/sysstate.h>
19#include <rtems/score/userext.h>
20
21System_state_Codes _System_state_Current;
22
23Internal_errors_Information _Internal_errors_What_happened;
24
25/*
26 *  _Internal_error_Occurred
27 *
28 *  This routine will invoke the fatal error handler supplied by the user
29 *  followed by the the default one provided by the executive.  The default
30 *  error handler assumes no hardware is present to help inform the user
31 *  of the problem.  Halt stores the error code in a known register,
32 *  disables interrupts, and halts the CPU.  If the CPU does not have a
33 *  halt instruction, it will loop to itself.
34 *
35 *  Input parameters:
36 *    the_source  - what subsystem the error originated in
37 *    is_internal - if the error was internally generated
38 *    the_error   - fatal error status code
39 *
40 *  Output parameters:
41 *    As much information as possible is stored in a CPU dependent fashion.
42 *    See the CPU dependent code for more information.
43 *
44 *  NOTE: The the_error is not necessarily a directive status code.
45 */
46
47void _Internal_error_Occurred(
48  Internal_errors_Source  the_source,
49  bool                    is_internal,
50  Internal_errors_t       the_error
51)
52{
53  _User_extensions_Fatal( the_source, is_internal, the_error );
54
55  _Internal_errors_What_happened.the_source  = the_source;
56  _Internal_errors_What_happened.is_internal = is_internal;
57  _Internal_errors_What_happened.the_error   = the_error;
58
59  _System_state_Set( SYSTEM_STATE_FAILED );
60
61  _CPU_Fatal_halt( the_error );
62
63  /* will not return from this routine */
64  while (true);
65}
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