X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fgencgc-internal.h;h=c9fe3b5b27f2256eb0c9e799b59cad32efdff4bd;hb=1de12891f900d156ed035a097561ecd7755a256a;hp=b2d2f259243aef2165ab72f533055b4f7036503d;hpb=fd225cfc39c6e4ba6f778b4201423cd3e83e0418;p=sbcl.git

diff --git a/src/runtime/gencgc-internal.h b/src/runtime/gencgc-internal.h
index b2d2f25..c9fe3b5 100644
--- a/src/runtime/gencgc-internal.h
+++ b/src/runtime/gencgc-internal.h
@@ -24,8 +24,6 @@
 #include "gencgc-alloc-region.h"
 #include "genesis/code.h"
 
-#define PAGE_BYTES GENCGC_PAGE_SIZE
-
 void gc_free_heap(void);
 inline page_index_t find_page_index(void *);
 inline void *page_address(page_index_t);
@@ -75,7 +73,9 @@ struct page {
         /* If the page is part of a large object then this flag is
          * set. No other objects should be allocated to these pages.
          * This is only valid when the page is allocated. */
-        large_object :1;
+        large_object :1,
+        /* True if the page is known to contain only zeroes. */
+        need_to_zero :1;
 
     /* the generation that this page belongs to. This should be valid
      * for all pages that may have objects allocated, even current
@@ -88,10 +88,8 @@ struct page {
 /* values for the page.allocated field */
 
 
-/* the number of pages needed for the dynamic space - rounding up */
-#define NUM_PAGES ((page_index_t) ((DYNAMIC_SPACE_SIZE+PAGE_BYTES-1)/PAGE_BYTES))
-
-extern struct page page_table[NUM_PAGES];
+extern unsigned page_table_pages;
+extern struct page *page_table;
 
 
 /* forward declarations */
@@ -114,7 +112,7 @@ space_matches_p(lispobj obj, generation_index_t space)
     page_index_t page_index=(void*)obj - (void *)DYNAMIC_SPACE_START;
     return ((page_index >= 0)
             && ((page_index =
-                 ((unsigned long)page_index)/PAGE_BYTES) < NUM_PAGES)
+                 ((unsigned long)page_index)/PAGE_BYTES) < page_table_pages)
             && (page_table[page_index].gen == space));
 }