2008-10-17 Michael Snyder <msnyder@vmware.com>

[deliverable/binutils-gdb.git] / gdb / target.h

diff --git a/gdb/target.h b/gdb/target.h
index e3537c4cd5a05e702b205bc5d9a82e21b710f13d..cdc898fe191c48119cadb80e3f2af60a8654dc77 100644 (file)
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -128,7 +128,11 @@ enum target_waitkind
        inferior, rather than being stuck in the remote_async_wait()
        function. This way the event loop is responsive to other events,
        like for instance the user typing.  */
-    TARGET_WAITKIND_IGNORE
+    TARGET_WAITKIND_IGNORE,
+
+    /* The target has run out of history information,
+       and cannot run backward any further.  */
+    TARGET_WAITKIND_NO_HISTORY
   };
 
 struct target_waitstatus
@@ -523,6 +527,9 @@ struct target_ops
                             const gdb_byte *pattern, ULONGEST pattern_len,
                             CORE_ADDR *found_addrp);
 
+    /* Can target execute in reverse?  */
+    int (*to_can_execute_reverse) ();
+
     int to_magic;
     /* Need sub-structure for target machine related rather than comm related?
      */
@@ -1127,6 +1134,11 @@ extern int target_stopped_data_address_p (struct target_ops *);
 #define target_watchpoint_addr_within_range(target, addr, start, length) \
   (*target.to_watchpoint_addr_within_range) (target, addr, start, length)
 
+/* Target can execute in reverse?  */
+#define target_can_execute_reverse \
+     (current_target.to_can_execute_reverse ? \
+      current_target.to_can_execute_reverse () : 0)
+
 extern const struct target_desc *target_read_description (struct target_ops *);
 
 /* Utility implementation of searching memory.  */