arm: Add and use _ARM_Exception_default()

cpukit/score/cpu/arm/Makefile.am

@@ -20,6 +20,7 @@ libscorecpu_a_SOURCES += arm_exc_interrupt.S
 libscorecpu_a_SOURCES += arm_exc_handler_low.S
 libscorecpu_a_SOURCES += arm_exc_handler_high.c
 libscorecpu_a_SOURCES += arm-exception-frame-print.c
+libscorecpu_a_SOURCES += arm-exception-default.c
 libscorecpu_a_SOURCES += armv7m-context-initialize.c
 libscorecpu_a_SOURCES += armv7m-context-restore.c
 libscorecpu_a_SOURCES += armv7m-context-switch.c

cpukit/score/cpu/arm/arm-exception-default.c

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2013 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/score/cpu.h>
+#include <rtems/fatal.h>
+
+void _ARM_Exception_default( CPU_Exception_frame *frame )
+{
+  rtems_fatal( RTEMS_FATAL_SOURCE_EXCEPTION, (rtems_fatal_code) frame );
+}

cpukit/score/cpu/arm/arm_exc_abort.S

@@ -28,7 +28,7 @@
 
 #ifdef ARM_MULTILIB_ARCH_V4
 
-.extern rtems_fatal_error_occurred
+.extern _ARM_Exception_default
 
 .globl _ARMV4_Exception_data_abort_set_handler
 .globl _ARMV4_Exception_data_abort
@@ -110,9 +110,8 @@ save_more_context:
 	/* Call high level handler */
 	ldr	r2, [r6]
 	cmp	r2, #0
-	ldreq	r2, =rtems_fatal_error_occurred
+	ldreq	r2, =_ARM_Exception_default
-	movne	r0, sp
+	mov	r0, sp
-	moveq	r0, #0xaa
 #ifndef __thumb__
 	mov	lr, pc
 	mov	pc, r2

cpukit/score/cpu/arm/rtems/score/cpu.h

@@ -573,6 +573,8 @@ typedef CPU_Interrupt_frame CPU_Exception_frame;
 
 void _CPU_Exception_frame_print( const CPU_Exception_frame *frame );
 
+void _ARM_Exception_default( CPU_Exception_frame *frame );
+
 #ifdef __cplusplus
 }
 #endif