lttng: tracer control and core structures

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/lttng/ltt-endian.h

@@ -0,0 +1,31 @@
+#ifndef _LTT_ENDIAN_H
+#define _LTT_ENDIAN_H
+
+/*
+ * ltt-endian.h
+ *
+ * Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * Dual LGPL v2.1/GPL v2 license.
+ */
+
+#ifdef __KERNEL__
+# include <asm/byteorder.h>
+# ifdef __BIG_ENDIAN
+#  define __BYTE_ORDER __BIG_ENDIAN
+# elif defined(__LITTLE_ENDIAN)
+#  define __BYTE_ORDER __LITTLE_ENDIAN
+# else
+#  error "unknown endianness"
+# endif
+#ifndef __BIG_ENDIAN
+# define __BIG_ENDIAN 4321
+#endif
+#ifndef __LITTLE_ENDIAN
+# define __LITTLE_ENDIAN 1234
+#endif
+#else
+# include <endian.h>
+#endif
+
+#endif /* _LTT_ENDIAN_H */