score: Add CPU_Exception_frame

Add CPU port type CPU_Exception_frame and function
_CPU_Exception_frame_print().

The CPU ports of avr, bfin, h8300, lm32, m32c, m32r, m68k, nios2, sh,
sparc64, and v850 use an empty default implementation of
_CPU_Exception_frame_print().

Add rtems_exception_frame and rtems_exception_frame_print().

Add RTEMS_FATAL_SOURCE_EXCEPTION for CPU exceptions.  Use rtems_fatal()
with source RTEMS_FATAL_SOURCE_EXCEPTION in CPU ports of i386, powerpc,
and sparc for unexpected exceptions.

Add third parameter to RTEMS_BSP_CLEANUP_OPTIONS() which controls the
BSP_PRINT_EXCEPTION_CONTEXT define used in the default
bsp_fatal_extension().

Add test sptests/spfatal26.

1 files changed, 21 insertions, 17 deletions

diff --git a/c/src/lib/libbsp/sparc/leon3/startup/spurious.c b/c/src/lib/libbsp/sparc/leon3/startup/spurious.c
index f060e284ca..e12ac018a6 100644
--- a/c/src/lib/libbsp/sparc/leon3/startup/spurious.c
+++ b/c/src/lib/libbsp/sparc/leon3/startup/spurious.c
@@ -18,23 +18,17 @@
  */
 
 #include <bsp.h>
-
 #include <rtems/bspIo.h>
 
-/*
- *  bsp_spurious_handler
- *
- *  Print a message on the debug console and then die
- */
-
-rtems_isr bsp_spurious_handler(
-   rtems_vector_number trap,
-   CPU_Interrupt_frame *isf
-)
+void _BSP_Exception_frame_print( const CPU_Exception_frame *frame )
 {
-  uint32_t real_trap;
+  uint32_t                   trap;
+  uint32_t                   real_trap;
+  const CPU_Interrupt_frame *isf;
 
+  trap = frame->trap;
   real_trap = SPARC_REAL_TRAP_NUMBER(trap);
+  isf = frame->isf;
 
   printk( "Unexpected trap (0x%02x) at address 0x%08x\n", real_trap, isf->tpc);
 
@@ -113,12 +107,22 @@ rtems_isr bsp_spurious_handler(
     default:
       break;
   }
+}
 
-  /*
-   *  What else can we do but stop ...
-   */
-
-  __asm__ volatile( "mov 1, %g1; ta 0x0" );
+rtems_isr bsp_spurious_handler(
+   rtems_vector_number trap,
+   CPU_Interrupt_frame *isf
+)
+{
+  CPU_Exception_frame frame = {
+    .trap = trap,
+    .isf = isf
+  };
+
+  rtems_fatal(
+    RTEMS_FATAL_SOURCE_EXCEPTION,
+    (rtems_fatal_code) &frame
+  );
 }
 
 /*