convert to_ranged_break_num_registers

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

	* target-delegates.c: Rebuild.
	* target.c (target_ranged_break_num_registers): Unconditionally
	delegate.
	* target.h (struct target_ops) <to_ranged_break_num_registers>:
	Use TARGET_DEFAULT_RETURN.

4 files changed, 27 insertions, 8 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1f352ea..1e00118 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,6 +1,14 @@
 2014-02-19  Tom Tromey  <tromey@redhat.com>
 
 	* target-delegates.c: Rebuild.
+	* target.c (target_ranged_break_num_registers): Unconditionally
+	delegate.
+	* target.h (struct target_ops) <to_ranged_break_num_registers>:
+	Use TARGET_DEFAULT_RETURN.
+
+2014-02-19  Tom Tromey  <tromey@redhat.com>
+
+	* target-delegates.c: Rebuild.
 	* target.c (target_fetch_registers): Unconditionally delegate.
 	* target.h (struct target_ops) <to_fetch_registers>: Use
 	TARGET_DEFAULT_NORETURN.
diff --git a/gdb/target-delegates.c b/gdb/target-delegates.c
index f813e35..3def763 100644
--- a/gdb/target-delegates.c
+++ b/gdb/target-delegates.c
@@ -138,6 +138,19 @@ tdefault_can_use_hw_breakpoint (struct target_ops *self, int arg1, int arg2, int
 }
 
 static int
+delegate_ranged_break_num_registers (struct target_ops *self)
+{
+  self = self->beneath;
+  return self->to_ranged_break_num_registers (self);
+}
+
+static int
+tdefault_ranged_break_num_registers (struct target_ops *self)
+{
+  return -1;
+}
+
+static int
 delegate_insert_hw_breakpoint (struct target_ops *self, struct gdbarch *arg1, struct bp_target_info *arg2)
 {
   self = self->beneath;
@@ -1113,6 +1126,8 @@ install_delegators (struct target_ops *ops)
     ops->to_remove_breakpoint = delegate_remove_breakpoint;
   if (ops->to_can_use_hw_breakpoint == NULL)
     ops->to_can_use_hw_breakpoint = delegate_can_use_hw_breakpoint;
+  if (ops->to_ranged_break_num_registers == NULL)
+    ops->to_ranged_break_num_registers = delegate_ranged_break_num_registers;
   if (ops->to_insert_hw_breakpoint == NULL)
     ops->to_insert_hw_breakpoint = delegate_insert_hw_breakpoint;
   if (ops->to_remove_hw_breakpoint == NULL)
@@ -1288,6 +1303,7 @@ install_dummy_methods (struct target_ops *ops)
   ops->to_insert_breakpoint = memory_insert_breakpoint;
   ops->to_remove_breakpoint = memory_remove_breakpoint;
   ops->to_can_use_hw_breakpoint = tdefault_can_use_hw_breakpoint;
+  ops->to_ranged_break_num_registers = tdefault_ranged_break_num_registers;
   ops->to_insert_hw_breakpoint = tdefault_insert_hw_breakpoint;
   ops->to_remove_hw_breakpoint = tdefault_remove_hw_breakpoint;
   ops->to_remove_watchpoint = tdefault_remove_watchpoint;
diff --git a/gdb/target.c b/gdb/target.c
index f656db3..d4e58b0 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -3899,13 +3899,7 @@ target_masked_watch_num_registers (CORE_ADDR addr, CORE_ADDR mask)
 int
 target_ranged_break_num_registers (void)
 {
-  struct target_ops *t;
-
-  for (t = current_target.beneath; t != NULL; t = t->beneath)
-    if (t->to_ranged_break_num_registers != NULL)
-      return t->to_ranged_break_num_registers (t);
-
-  return -1;
+  return current_target.to_ranged_break_num_registers (&current_target);
 }
 
 /* See target.h.  */
diff --git a/gdb/target.h b/gdb/target.h
index 0aee7a9..25e98ed 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -458,7 +458,8 @@ struct target_ops
       TARGET_DEFAULT_FUNC (memory_remove_breakpoint);
     int (*to_can_use_hw_breakpoint) (struct target_ops *, int, int, int)
       TARGET_DEFAULT_RETURN (0);
-    int (*to_ranged_break_num_registers) (struct target_ops *);
+    int (*to_ranged_break_num_registers) (struct target_ops *)
+      TARGET_DEFAULT_RETURN (-1);
     int (*to_insert_hw_breakpoint) (struct target_ops *,
 				    struct gdbarch *, struct bp_target_info *)
       TARGET_DEFAULT_RETURN (-1);