From 3a646426aa421ab3e229ec483d8b29f2f56c29ac Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Thu, 19 Jul 2018 12:53:34 +0200
Subject: score: Add _CPU_Instruction_illegal()

On some architectures/simulators it is difficult to provoke an
exception with misaligned or illegal data loads.  Use an illegal
instruction instead.

Update #3433.
---
 testsuites/sptests/spfatal26/init.c | 40 ++++++-------------------------------
 1 file changed, 6 insertions(+), 34 deletions(-)

(limited to 'testsuites')

diff --git a/testsuites/sptests/spfatal26/init.c b/testsuites/sptests/spfatal26/init.c
index 1848659d6a..a77c62a841 100644
--- a/testsuites/sptests/spfatal26/init.c
+++ b/testsuites/sptests/spfatal26/init.c
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2012 embedded brains GmbH.  All rights reserved.
+ * Copyright (c) 2012, 2018 embedded brains GmbH.  All rights reserved.
  *
  *  embedded brains GmbH
- *  Obere Lagerstr. 30
+ *  Dornierstr. 4
  *  82178 Puchheim
  *  Germany
  *  <rtems@embedded-brains.de>
@@ -16,45 +16,17 @@
   #include "config.h"
 #endif
 
-#include "tmacros.h"
-
-#include <limits.h>
-
 #include <rtems.h>
+#include <rtems/score/cpuimpl.h>
 
-const char rtems_test_name[] = "SPFATAL 26";
-
-static void provoke_aligment_or_data_access_exception( void )
-{
-  uintptr_t one = 1;
-  int i = sizeof(void *) * CHAR_BIT;
-  uintptr_t n = 1;
-  uintptr_t base = 0;
-  uintptr_t inc;
-
-  *(volatile uint64_t *) base;
-
-  do {
-    int j;
+#include <tmacros.h>
 
-    --i;
-    base = one << i;
-    inc = base << 1;
-
-    for (j = 0; j < n; ++j, base += inc) {
-      *(volatile uint64_t *) base;
-    }
-
-    n <<= 1;
-  } while (i > 0);
-}
+const char rtems_test_name[] = "SPFATAL 26";
 
 static void Init( rtems_task_argument arg )
 {
   TEST_BEGIN();
-
-  provoke_aligment_or_data_access_exception();
-
+  _CPU_Instruction_illegal();
   rtems_test_assert( 0 );
 }
 
-- 
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