X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/f301a4a21f34bea6c41872258a9dab3263f04e2a..f6f4ac588cec25ad7f9baa67fc3c22c9306f962e:/LUFA/Common/Common.h

diff --git a/LUFA/Common/Common.h b/LUFA/Common/Common.h
index c2eeeade5..b7d564aa3 100644
--- a/LUFA/Common/Common.h
+++ b/LUFA/Common/Common.h
@@ -53,9 +53,7 @@
 #define __LUFA_COMMON_H__
 
 	/* Macros: */
-		#if !defined(__DOXYGEN__)
-			#define __INCLUDE_FROM_COMMON_H
-		#endif
+		#define __INCLUDE_FROM_COMMON_H
 		
 	/* Includes: */
 		#include <stdint.h>
@@ -84,7 +82,7 @@
 			
 			#define  ARCH_LITTLE_ENDIAN
 			#include "Endianness.h"
-		#elif (ARCH == ARCH_UC3B)
+		#elif (ARCH == ARCH_UC3)
 			#include <avr32/io.h>
 
 			// === TODO: Find abstracted way to handle these ===
@@ -214,6 +212,12 @@
 			 */
 			#define GCC_FORCE_POINTER_ACCESS(StructPtr) __asm__ __volatile__("" : "=b" (StructPtr) : "0" (StructPtr))
 
+			/** Forces GCC to create a memory barrier, ensuring that memory accesses are not reordered past the barrier point.
+			 *  This can be used before ordering-critical operations, to ensure that the compiler does not re-order the resulting
+			 *  assembly output in an unexpected manner on sections of code that are ordering-specific.
+			 */
+			#define GCC_MEMORY_BARRIER()                __asm__ __volatile__("" ::: "memory");
+
 		/* Inline Functions: */
 			/** Function to reverse the individual bits in a byte - i.e. bit 7 is moved to bit 0, bit 6 to bit 1,
 			 *  etc.