X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcfg%2Fcompiler.h;h=bd60c6e79b74f534688c4816526126f835cb2ef7;hb=b8a137380f022b894587295607cc4dc3f0e7fb00;hp=5cacf1dca66fe20041b8e2fa0aa5133b66aad3d0;hpb=07e34b5dabbe1609ff848b2137ccbbff33619144;p=bertos.git

diff --git a/bertos/cfg/compiler.h b/bertos/cfg/compiler.h
index 5cacf1dc..bd60c6e7 100644
--- a/bertos/cfg/compiler.h
+++ b/bertos/cfg/compiler.h
@@ -190,6 +190,10 @@
 		#define DEPRECATED  __attribute__((__deprecated__))
 	#endif
 
+	#if GNUC_PREREQ(4,5)
+		#define UNREACHABLE() __builtin_unreachable()
+	#endif
+
 	#ifndef __cplusplus
 		#define ASSERT_TYPE_EQUAL(var1, var2) \
 			STATIC_ASSERT(__builtin_types_compatible_p(typeof(var1), typeof(var2)))
@@ -323,6 +327,9 @@
 #define MEMORY_BARRIER         /* nothing */
 #warning No memory barrier defined for select compiler. If you use the kernel check it.
 #endif
+#ifndef UNREACHABLE
+#define UNREACHABLE() for (;;)
+#endif
 
 
 /* Misc definitions */