+(eval-when (:compile-toplevel :load-toplevel :execute)
+ ;; On Linux, the ABI specifies the page size to be 4k-64k, use the
+ ;; maximum of that range. FIXME: it'd be great if somebody would
+ ;; find out whether using exact multiples of the page size actually
+ ;; matters in the few places where that's done, or whether we could
+ ;; just use 4k everywhere.
+ (setf *backend-page-bytes* #!+linux 65536 #!-linux 4096))
+
+;;; The size in bytes of the GENCGC pages. Should be a multiple of the
+;;; architecture page size.
+(def!constant gencgc-page-bytes *backend-page-bytes*)