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+#ifndef BSP_EXCEPTION_HANDLER_H
+#define BSP_EXCEPTION_HANDLER_H
+
+/* A slightly improved exception 'default' exception handler for RTEMS / SVGM */
+
+/*
+ * Authorship
+ * ----------
+ * This software was created by
+ * Till Straumann <strauman@slac.stanford.edu>, 5/2002,
+ * Stanford Linear Accelerator Center, Stanford University.
+ *
+ * Acknowledgement of sponsorship
+ * ------------------------------
+ * This software was produced by
+ * the Stanford Linear Accelerator Center, Stanford University,
+ * under Contract DE-AC03-76SFO0515 with the Department of Energy.
+ *
+ * Government disclaimer of liability
+ * ----------------------------------
+ * Neither the United States nor the United States Department of Energy,
+ * nor any of their employees, makes any warranty, express or implied, or
+ * assumes any legal liability or responsibility for the accuracy,
+ * completeness, or usefulness of any data, apparatus, product, or process
+ * disclosed, or represents that its use would not infringe privately owned
+ * rights.
+ *
+ * Stanford disclaimer of liability
+ * --------------------------------
+ * Stanford University makes no representations or warranties, express or
+ * implied, nor assumes any liability for the use of this software.
+ *
+ * Stanford disclaimer of copyright
+ * --------------------------------
+ * Stanford University, owner of the copyright, hereby disclaims its
+ * copyright and all other rights in this software. Hence, anyone may
+ * freely use it for any purpose without restriction.
+ *
+ * Maintenance of notices
+ * ----------------------
+ * In the interest of clarity regarding the origin and status of this
+ * SLAC software, this and all the preceding Stanford University notices
+ * are to remain affixed to any copy or derivative of this software made
+ * or distributed by the recipient and are to be affixed to any copy of
+ * software made or distributed by the recipient that contains a copy or
+ * derivative of this software.
+ *
+ * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
+ */
+
+#include <bsp/vectors.h>
+
+/* Two types of exception intercepting / catching is supported:
+ *
+ * - lowlevel handling (runs at IRQ level, before restoring any
+ * task context).
+ * - highlevel handling.
+ *
+ * A lowlevel user hook is invoked twice, before and after processing
+ * (printing) the exception.
+ * If the user hook returns a nonzero value, normal processing
+ * is skipped (including the second call to the hook)
+ *
+ * If the hook returns nonzero to the second call, no default
+ * 'panic' occurs.
+ *
+ * Default 'panic':
+ * - if a task context is available:
+ * - if a highlevel handler is installed, pass control
+ * to the highlevel handler when returning from the
+ * exception (the highlevel handler should probably
+ * do a longjmp()). Otherwise:
+ * - try to suspend interrupted task.
+ * - hang if no task context is available.
+ *
+ */
+
+typedef struct BSP_ExceptionExtensionRec_ *BSP_ExceptionExtension;
+
+typedef int (*BSP_ExceptionHookProc)(BSP_Exception_frame *frame, BSP_ExceptionExtension ext, int after);
+
+typedef struct BSP_ExceptionExtensionRec_ {
+ BSP_ExceptionHookProc lowlevelHook;
+ int quiet; /* silence the exception handler */
+ void (*highlevelHook)(BSP_ExceptionExtension);
+ /* user fields may be added after this */
+} BSP_ExceptionExtensionRec;
+
+#define SRR1_TEA_EXC (1<<(31-13))
+#define SRR1_MCP_EXC (1<<(31-12))
+
+void
+BSP_exceptionHandler(BSP_Exception_frame* excPtr);
+
+/* install an exception handler to the current task context */
+BSP_ExceptionExtension
+BSP_exceptionHandlerInstall(BSP_ExceptionExtension e);
+
+#endif