convert to_read_btrace

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

	* target-delegates.c: Rebuild.
	* target.c (target_read_btrace): Unconditionally delegate.
	* target.h (struct target_ops) <to_read_btrace>: Use
	TARGET_DEFAULT_NORETURN.

4 files changed, 26 insertions, 9 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 0402da3..3cdb9fe 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,6 +1,13 @@
 2014-02-19  Tom Tromey  <tromey@redhat.com>
 
 	* target-delegates.c: Rebuild.
+	* target.c (target_read_btrace): Unconditionally delegate.
+	* target.h (struct target_ops) <to_read_btrace>: Use
+	TARGET_DEFAULT_NORETURN.
+
+2014-02-19  Tom Tromey  <tromey@redhat.com>
+
+	* target-delegates.c: Rebuild.
 	* target.c (target_teardown_btrace): Unconditionally delegate.
 	* target.h (struct target_ops) <to_teardown_btrace>: Use
 	TARGET_DEFAULT_NORETURN.
diff --git a/gdb/target-delegates.c b/gdb/target-delegates.c
index 800a37c..1b956d2 100644
--- a/gdb/target-delegates.c
+++ b/gdb/target-delegates.c
@@ -1326,6 +1326,19 @@ tdefault_teardown_btrace (struct target_ops *self, struct btrace_target_info *ar
   tcomplain ();
 }
 
+static enum btrace_error 
+delegate_read_btrace (struct target_ops *self, VEC (btrace_block_s) **arg1, struct btrace_target_info *arg2, enum btrace_read_type  arg3)
+{
+  self = self->beneath;
+  return self->to_read_btrace (self, arg1, arg2, arg3);
+}
+
+static enum btrace_error 
+tdefault_read_btrace (struct target_ops *self, VEC (btrace_block_s) **arg1, struct btrace_target_info *arg2, enum btrace_read_type  arg3)
+{
+  tcomplain ();
+}
+
 static void
 delegate_save_record (struct target_ops *self, const char *arg1)
 {
@@ -1722,6 +1735,8 @@ install_delegators (struct target_ops *ops)
     ops->to_disable_btrace = delegate_disable_btrace;
   if (ops->to_teardown_btrace == NULL)
     ops->to_teardown_btrace = delegate_teardown_btrace;
+  if (ops->to_read_btrace == NULL)
+    ops->to_read_btrace = delegate_read_btrace;
   if (ops->to_save_record == NULL)
     ops->to_save_record = delegate_save_record;
   if (ops->to_delete_record == NULL)
@@ -1865,6 +1880,7 @@ install_dummy_methods (struct target_ops *ops)
   ops->to_supports_btrace = tdefault_supports_btrace;
   ops->to_disable_btrace = tdefault_disable_btrace;
   ops->to_teardown_btrace = tdefault_teardown_btrace;
+  ops->to_read_btrace = tdefault_read_btrace;
   ops->to_save_record = tdefault_save_record;
   ops->to_delete_record = tdefault_delete_record;
   ops->to_record_is_replaying = tdefault_record_is_replaying;
diff --git a/gdb/target.c b/gdb/target.c
index 85ee331..75d961b 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -3817,14 +3817,7 @@ target_read_btrace (VEC (btrace_block_s) **btrace,
 		    struct btrace_target_info *btinfo,
 		    enum btrace_read_type type)
 {
-  struct target_ops *t;
-
-  for (t = current_target.beneath; t != NULL; t = t->beneath)
-    if (t->to_read_btrace != NULL)
-      return t->to_read_btrace (t, btrace, btinfo, type);
-
-  tcomplain ();
-  return BTRACE_ERR_NOT_SUPPORTED;
+  return current_target.to_read_btrace (&current_target, btrace, btinfo, type);
 }
 
 /* See target.h.  */
diff --git a/gdb/target.h b/gdb/target.h
index 8898438..13090e1 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -1023,7 +1023,8 @@ struct target_ops
     enum btrace_error (*to_read_btrace) (struct target_ops *self,
 					 VEC (btrace_block_s) **data,
 					 struct btrace_target_info *btinfo,
-					 enum btrace_read_type type);
+					 enum btrace_read_type type)
+      TARGET_DEFAULT_NORETURN (tcomplain ());
 
     /* Stop trace recording.  */
     void (*to_stop_recording) (struct target_ops *);