[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 6

The attached patches provides part 6 of an architecture implementation for the
Tensilica Xtensa CPU series.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/include/asm-xtensa/bug.h b/include/asm-xtensa/bug.h
new file mode 100644
index 000000000000..56703659b204
--- /dev/null
+++ b/include/asm-xtensa/bug.h
@@ -0,0 +1,41 @@
+/*
+ * include/asm-xtensa/bug.h
+ *
+ * Macros to cause a 'bug' message.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_BUG_H
+#define _XTENSA_BUG_H
+
+#include <linux/stringify.h>
+
+#define ILL     __asm__ __volatile__ (".byte 0,0,0\n")
+
+#ifdef CONFIG_KALLSYMS
+# define BUG() do {                                                     \
+        printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__);           \
+        ILL;                                                            \
+} while (0)
+#else
+# define BUG() do {                                                     \
+        printk("kernel BUG!\n");                                        \
+        ILL;                                                            \
+} while (0)
+#endif
+
+#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
+#define PAGE_BUG(page) do {  BUG(); } while (0)
+#define WARN_ON(condition) do {                                            \
+  if (unlikely((condition)!=0)) {                                          \
+    printk ("Warning in %s at %s:%d\n", __FUNCTION__, __FILE__, __LINE__); \
+      dump_stack();                                                        \
+  }                                                                        \
+} while (0)
+
+#endif  /* _XTENSA_BUG_H */