X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Fcompiler.h;h=1e309035a9313e1540ada18c95b1da4d444c399b;hp=19534f08522ac3cc28a3557d93f7a16baab6e56e;hb=4b79310aa3d408ba30fee02cc497a68072d38a99;hpb=28d5c1b5f2bdbb630c4aafa35c9b6e0d58542c73

diff --git a/urcu/compiler.h b/urcu/compiler.h
index 19534f0..1e30903 100644
--- a/urcu/compiler.h
+++ b/urcu/compiler.h
@@ -108,4 +108,23 @@
 
 #define CAA_ARRAY_SIZE(x)	(sizeof(x) / sizeof((x)[0]))
 
+/*
+ * Don't allow compiling with buggy compiler.
+ */
+
+#ifdef __GNUC__
+# define URCU_GCC_VERSION	(__GNUC__ * 10000 \
+				+ __GNUC_MINOR__ * 100 \
+				+ __GNUC_PATCHLEVEL__)
+
+/*
+ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854
+ */
+# ifdef __ARMEL__
+#  if URCU_GCC_VERSION >= 40800 && URCU_GCC_VERSION <= 40802
+#   error Your gcc version produces clobbered frame accesses
+#  endif
+# endif
+#endif
+
 #endif /* _URCU_COMPILER_H */