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diff --git a/c/src/exec/score/headers/interr.h b/c/src/exec/score/headers/interr.h
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+++ b/c/src/exec/score/headers/interr.h
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+/*  interr.h
+ *
+ *  This include file contains constants and prototypes related
+ *  to the Internal Error Handler. 
+ *
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may in
+ *  the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#ifndef __RTEMS_INTERNAL_ERROR_h
+#define __RTEMS_INTERNAL_ERROR_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ *  This type lists the possible sources from which an error
+ *  can be reported.
+ */
+
+typedef enum {
+  INTERNAL_ERROR_CORE,
+  INTERNAL_ERROR_RTEMS_API,
+  INTERNAL_ERROR_POSIX_API
+} Internal_errors_Source;
+
+/*
+ *  A list of errors which are generated internally by the executive core.
+ */
+
+typedef enum {
+  INTERNAL_ERROR_NO_CONFIGURATION_TABLE,
+  INTERNAL_ERROR_NO_CPU_TABLE,
+  INTERNAL_ERROR_INVALID_WORKSPACE_ADDRESS,
+  INTERNAL_ERROR_TOO_LITTLE_WORKSPACE,
+  INTERNAL_ERROR_WORKSPACE_ALLOCATION,
+  INTERNAL_ERROR_INTERRUPT_STACK_TOO_SMALL,
+  INTERNAL_ERROR_THREAD_EXITTED,
+  INTERNAL_ERROR_INCONSISTENT_MP_INFORMATION,
+  INTERNAL_ERROR_INVALID_NODE,
+  INTERNAL_ERROR_NO_MPCI,
+  INTERNAL_ERROR_BAD_PACKET,
+  INTERNAL_ERROR_OUT_OF_PACKETS,
+  INTERNAL_ERROR_OUT_OF_GLOBAL_OBJECTS,
+  INTERNAL_ERROR_OUT_OF_PROXIES,
+  INTERNAL_ERROR_INVALID_GLOBAL_ID,
+  INTERNAL_ERROR_BAD_STACK_HOOK
+} Internal_errors_Core_list;
+
+/*
+ *  This type holds the fatal error information.
+ */
+ 
+typedef struct {
+  Internal_errors_Source  the_source;
+  boolean                 is_internal;
+  unsigned32              the_error;
+} Internal_errors_Information;
+
+/*
+ *  When a fatal error occurs, the error information is stored here.
+ */
+
+SCORE_EXTERN Internal_errors_Information Internal_errors_What_happened;
+
+/*
+ *  _Internal_error_Occurred
+ *
+ *  DESCRIPTION:
+ *
+ *  This routine is invoked when the application or the executive itself
+ *  determines that a fatal error has occurred.
+ */
+
+void volatile _Internal_error_Occurred(
+  Internal_errors_Source  the_source,
+  boolean                 is_internal,
+  unsigned32              the_error
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+/* end of include file */