X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fglobals.c;h=b4774db1aa0110bbf2f5eaf3fd48e7f2f92fa1ee;hb=d7f6139a91d7d9b0667a597584ae306d958bb2f4;hp=70beb568343f019762c24f193ef7772c0e889282;hpb=cea4896b2482b7b2b429c1631d774b4cfbc0efba;p=sbcl.git

diff --git a/src/runtime/globals.c b/src/runtime/globals.c
index 70beb56..b4774db 100644
--- a/src/runtime/globals.c
+++ b/src/runtime/globals.c
@@ -18,6 +18,7 @@
 #include "runtime.h"
 #include "sbcl.h"
 #include "globals.h"
+#include "validate.h"
 
 int foreign_function_call_active;
 
@@ -27,13 +28,29 @@ lispobj *current_control_frame_pointer;
 lispobj *current_binding_stack_pointer;
 #endif
 
+/* ALLOCATION_POINTER is more or less synonymous with RT, it seems.
+ * Anyone want to do an RT port of sbcl?  
+ */
+
 #ifndef ALLOCATION_POINTER
+/* The Object Formerly Known As current_dynamic_space_free_pointer */
 lispobj *dynamic_space_free_pointer;
 #endif
+
 #ifndef INTERNAL_GC_TRIGGER
 lispobj *current_auto_gc_trigger;
 #endif
 
+/* For copying GCs, this points to the start of the dynamic space
+ * currently in use (that will become the from_space when the next GC
+ * is done).  For the GENCGC, it always points to DYNAMIC_SPACE_START. */
+lispobj *current_dynamic_space =
+#ifndef GENCGC
+    DYNAMIC_0_SPACE_START;
+#else
+    DYNAMIC_SPACE_START;
+#endif
+
 void globals_init(void)
 {
     /* Space, stack, and free pointer vars are initialized by
@@ -48,7 +65,7 @@ void globals_init(void)
     foreign_function_call_active = 1;
 
     /* Initialize the current Lisp state. */
-#ifndef __i386__
+#ifndef __i386__ /* if stack grows upward */
     current_control_stack_pointer = (lispobj *)CONTROL_STACK_START;
 #else
     current_control_stack_pointer = (lispobj *)CONTROL_STACK_END;