===================================================================
RCS file: /home/cvs/OpenXM_contrib/gc/Attic/backptr.h,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.2
diff -u -p -r1.1.1.1 -r1.1.1.2
--- OpenXM_contrib/gc/Attic/backptr.h	2000/04/14 11:08:00	1.1.1.1
+++ OpenXM_contrib/gc/Attic/backptr.h	2000/12/01 14:48:27	1.1.1.2
@@ -29,9 +29,11 @@
 /*   source is heap object ==> *base_p != 0, *offset_p = offset       */
 /*   Returns 1 on success, 0 if source couldn't be determined.        */
 /* Dest can be any address within a heap object.                      */
-typedef enum {  GC_UNREFERENCED, /* No refence info available.		*/
+typedef enum {  GC_UNREFERENCED, /* No reference info available.	*/
 		GC_NO_SPACE,	/* Dest not allocated with debug alloc  */
 		GC_REFD_FROM_ROOT, /* Referenced directly by root *base_p */
+		GC_REFD_FROM_REG,  /* Referenced from a register, i.e.	*/
+				   /* a root without an address.	*/
 		GC_REFD_FROM_HEAP, /* Referenced from another heap obj. */
 		GC_FINALIZER_REFD /* Finalizable and hence accessible.  */
 } GC_ref_kind;
@@ -52,5 +54,10 @@ void * GC_generate_random_valid_address(void);
 /* output.  It can often be called from a debugger.  The      */
 /* source in dbg_mlc.c also serves as a sample client.	      */
 void GC_generate_random_backtrace(void);
+
+/* Print a backtrace from a specific address.  Used by the 	*/
+/* above.  The client should call GC_gcollect() immediately	*/
+/* before invocation.						*/
+void GC_print_backtrace(void *);