convert to_insert_watchpoint

2014-02-19  Tom Tromey  <tromey@redhat.com>

	* target-delegates.c: Rebuild.
	* target.c (update_current_target): Don't inherit or default
	to_insert_watchpoint.
	* target.h (struct target_ops) <to_insert_watchpoint>: Use
	TARGET_DEFAULT_RETURN.

4 files changed, 27 insertions, 6 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 81fd3f4..87eb928 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -2,6 +2,14 @@
 
 	* target-delegates.c: Rebuild.
 	* target.c (update_current_target): Don't inherit or default
+	to_insert_watchpoint.
+	* target.h (struct target_ops) <to_insert_watchpoint>: Use
+	TARGET_DEFAULT_RETURN.
+
+2014-02-19  Tom Tromey  <tromey@redhat.com>
+
+	* target-delegates.c: Rebuild.
+	* target.c (update_current_target): Don't inherit or default
 	to_remove_hw_breakpoint.
 	* target.h (struct target_ops) <to_remove_hw_breakpoint>: Use
 	TARGET_DEFAULT_RETURN.
diff --git a/gdb/target-delegates.c b/gdb/target-delegates.c
index da91fb0..0d62cff 100644
--- a/gdb/target-delegates.c
+++ b/gdb/target-delegates.c
@@ -152,6 +152,19 @@ tdefault_remove_hw_breakpoint (struct target_ops *self, struct gdbarch *arg1, st
 }
 
 static int
+delegate_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int arg3, struct expression *arg4)
+{
+  self = self->beneath;
+  return self->to_insert_watchpoint (self, arg1, arg2, arg3, arg4);
+}
+
+static int
+tdefault_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int arg3, struct expression *arg4)
+{
+  return -1;
+}
+
+static int
 delegate_stopped_by_watchpoint (struct target_ops *self)
 {
   self = self->beneath;
@@ -266,6 +279,8 @@ install_delegators (struct target_ops *ops)
     ops->to_insert_hw_breakpoint = delegate_insert_hw_breakpoint;
   if (ops->to_remove_hw_breakpoint == NULL)
     ops->to_remove_hw_breakpoint = delegate_remove_hw_breakpoint;
+  if (ops->to_insert_watchpoint == NULL)
+    ops->to_insert_watchpoint = delegate_insert_watchpoint;
   if (ops->to_stopped_by_watchpoint == NULL)
     ops->to_stopped_by_watchpoint = delegate_stopped_by_watchpoint;
   if (ops->to_stopped_data_address == NULL)
@@ -300,6 +315,7 @@ install_dummy_methods (struct target_ops *ops)
   ops->to_can_use_hw_breakpoint = tdefault_can_use_hw_breakpoint;
   ops->to_insert_hw_breakpoint = tdefault_insert_hw_breakpoint;
   ops->to_remove_hw_breakpoint = tdefault_remove_hw_breakpoint;
+  ops->to_insert_watchpoint = tdefault_insert_watchpoint;
   ops->to_stopped_by_watchpoint = tdefault_stopped_by_watchpoint;
   ops->to_stopped_data_address = tdefault_stopped_data_address;
   ops->to_rcmd = default_rcmd;
diff --git a/gdb/target.c b/gdb/target.c
index eb9a21c..b19eb40 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -608,7 +608,7 @@ update_current_target (void)
       /* Do not inherit to_insert_hw_breakpoint.  */
       /* Do not inherit to_remove_hw_breakpoint.  */
       /* Do not inherit to_ranged_break_num_registers.  */
-      INHERIT (to_insert_watchpoint, t);
+      /* Do not inherit to_insert_watchpoint.  */
       INHERIT (to_remove_watchpoint, t);
       /* Do not inherit to_insert_mask_watchpoint.  */
       /* Do not inherit to_remove_mask_watchpoint.  */
@@ -734,10 +734,6 @@ update_current_target (void)
 	    (int (*) (CORE_ADDR, gdb_byte *, int, int,
 		      struct mem_attrib *, struct target_ops *))
 	    nomemory);
-  de_fault (to_insert_watchpoint,
-	    (int (*) (struct target_ops *, CORE_ADDR, int, int,
-		      struct expression *))
-	    return_minus_one);
   de_fault (to_remove_watchpoint,
 	    (int (*) (struct target_ops *, CORE_ADDR, int, int,
 		      struct expression *))
diff --git a/gdb/target.h b/gdb/target.h
index 32cf4f6..02ca292 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -470,7 +470,8 @@ struct target_ops
     int (*to_remove_watchpoint) (struct target_ops *,
 				 CORE_ADDR, int, int, struct expression *);
     int (*to_insert_watchpoint) (struct target_ops *,
-				 CORE_ADDR, int, int, struct expression *);
+				 CORE_ADDR, int, int, struct expression *)
+      TARGET_DEFAULT_RETURN (-1);
 
     int (*to_insert_mask_watchpoint) (struct target_ops *,
 				      CORE_ADDR, CORE_ADDR, int);