Add convenience functions for getting a def's offset and size.

tools/qfcc/include/def.h

@@ -254,6 +254,24 @@ void initialize_def (struct symbol_s *sym, struct type_s *type,
 	\return			1 if the defs overlap, 0 otherwise.
 */
 int def_overlap (def_t *d1, def_t *d2);
+
+/** Convenience function for obtaining a def's actual offset.
+
+	Takes care of an alias def's relative offset.
+
+	\param def		The def of which to obtain the offset. May be an alias def.
+	\return			The actual offset of the def in the def's defspace.
+*/
+int def_offset (def_t *def);
+
+/** Convenience function for obtaining a def's size.
+
+	Whether the def is an alias or not is irrelevant.
+
+	\param def		The def of which to obtain the size.
+	\return			The size of the def.
+*/
+int def_size (def_t *def);
 //@}
 
 #endif//__def_h

tools/qfcc/source/def.c

@@ -611,3 +611,18 @@ def_overlap (def_t *d1, def_t *d2)
 		return 1;
 	return 0;
 }
+
+int
+def_offset (def_t *def)
+{
+	int         offset = def->offset;
+	if (def->alias)
+		offset += def->alias->offset;
+	return offset;
+}
+
+int
+def_size (def_t *def)
+{
+	return type_size (def->type);
+}