1 files changed, 24 insertions, 0 deletions

diff --git a/include/linux/compiler-gcc2.h b/include/linux/compiler-gcc2.h
new file mode 100644
index 000000000000..5a359153ffd9
--- /dev/null
+++ b/include/linux/compiler-gcc2.h
@@ -0,0 +1,24 @@
+/* Never include this file directly.  Include <linux/compiler.h> instead.  */
+
+/* These definitions are for GCC v2.x.  */
+
+/* Somewhere in the middle of the GCC 2.96 development cycle, we implemented
+   a mechanism by which the user can annotate likely branch directions and
+   expect the blocks to be reordered appropriately.  Define __builtin_expect
+   to nothing for earlier compilers.  */
+#include <linux/compiler-gcc.h>
+
+#if __GNUC_MINOR__ < 96
+# define __builtin_expect(x, expected_value) (x)
+#endif
+
+#define __attribute_used__      __attribute__((__unused__))
+
+/*
+ * The attribute `pure' is not implemented in GCC versions earlier
+ * than 2.96.
+ */
+#if __GNUC_MINOR__ >= 96
+# define __attribute_pure__     __attribute__((pure))
+# define __attribute_const__    __attribute__((__const__))
+#endif