X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=cfg%2Fcompiler.h;h=a303dc776115cc0ab9640d4eb208bfe366c950ad;hb=af9cba1c451a41879ceddeab818bc265fb4923ff;hp=96745521fe864280d5f9db85879db290a4bd3e5a;hpb=5472d295ed805f1e517e6fcd3419c853126042b8;p=bertos.git

diff --git a/cfg/compiler.h b/cfg/compiler.h
index 96745521..a303dc77 100644
--- a/cfg/compiler.h
+++ b/cfg/compiler.h
@@ -37,8 +37,8 @@
  * \author Bernardo Innocenti <bernie@develer.com>
  */
 
-#ifndef DEVLIB_COMPILER_H
-#define DEVLIB_COMPILER_H
+#ifndef BERTOS_COMPILER_H
+#define BERTOS_COMPILER_H
 
 #include <cpu/detect.h>
 
@@ -181,6 +181,11 @@
 	#define RESTRICT                __restrict__
 	#define MUST_CHECK              __attribute__((warn_unused_result))
 	#define PACKED                  __attribute__((packed))
+	/**
+	 * Force compiler to realod context variable.
+	 */
+	#define MEMORY_BARRIER           asm volatile ("" : : : "memory")
+
 	#if GNUC_PREREQ(3,1)
 		#define DEPRECATED  __attribute__((__deprecated__))
 	#endif
@@ -211,6 +216,8 @@
 		#pragma GCC poison cin cout cerr clog
 	#endif
 
+
+
 #elif defined(__MWERKS__)
 
 	/* Compiler features */
@@ -313,6 +320,10 @@
 #ifndef PACKED
 #define PACKED                 /* nothing */
 #endif
+#ifndef MEMORY_BARRIER
+#define MEMORY_BARRIER         /* nothing */
+#warning No memory barrier defined for select compiler. If you use the kernel check it.
+#endif
 
 
 /* Misc definitions */
@@ -323,7 +334,6 @@
 #define	EOF   (-1)
 #endif
 
-
 /* Support for hybrid C/C++ applications. */
 #ifdef __cplusplus
 	#define EXTERN_C        extern "C"
@@ -515,4 +525,4 @@ typedef unsigned char page_t;    /**< Type for banked memory pages. */
 			do { (void)(&(var) == (type *)0); } while(0)
 #endif
 
-#endif /* DEVLIB_COMPILER_H */
+#endif /* BERTOS_COMPILER_H */