convert to_can_run_breakpoint_commands

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

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

4 files changed, 27 insertions, 5 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 8368621..4d867fa 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_can_run_breakpoint_commands.
+	* target.h (struct target_ops) <to_can_run_breakpoint_commands>:
+	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_supports_evaluation_of_breakpoint_conditions.
 	* target.h (struct target_ops)
 	<to_supports_evaluation_of_breakpoint_conditions>: Use
diff --git a/gdb/target-delegates.c b/gdb/target-delegates.c
index 509cc7a..69a498d 100644
--- a/gdb/target-delegates.c
+++ b/gdb/target-delegates.c
@@ -643,6 +643,19 @@ tdefault_supports_evaluation_of_breakpoint_conditions (struct target_ops *self)
   return 0;
 }
 
+static int
+delegate_can_run_breakpoint_commands (struct target_ops *self)
+{
+  self = self->beneath;
+  return self->to_can_run_breakpoint_commands (self);
+}
+
+static int
+tdefault_can_run_breakpoint_commands (struct target_ops *self)
+{
+  return 0;
+}
+
 static struct gdbarch *
 delegate_thread_architecture (struct target_ops *self, ptid_t arg1)
 {
@@ -1164,6 +1177,8 @@ install_delegators (struct target_ops *ops)
     ops->to_supports_string_tracing = delegate_supports_string_tracing;
   if (ops->to_supports_evaluation_of_breakpoint_conditions == NULL)
     ops->to_supports_evaluation_of_breakpoint_conditions = delegate_supports_evaluation_of_breakpoint_conditions;
+  if (ops->to_can_run_breakpoint_commands == NULL)
+    ops->to_can_run_breakpoint_commands = delegate_can_run_breakpoint_commands;
   if (ops->to_thread_architecture == NULL)
     ops->to_thread_architecture = delegate_thread_architecture;
   if (ops->to_trace_init == NULL)
@@ -1289,6 +1304,7 @@ install_dummy_methods (struct target_ops *ops)
   ops->to_supports_enable_disable_tracepoint = tdefault_supports_enable_disable_tracepoint;
   ops->to_supports_string_tracing = tdefault_supports_string_tracing;
   ops->to_supports_evaluation_of_breakpoint_conditions = tdefault_supports_evaluation_of_breakpoint_conditions;
+  ops->to_can_run_breakpoint_commands = tdefault_can_run_breakpoint_commands;
   ops->to_thread_architecture = default_thread_architecture;
   ops->to_trace_init = tdefault_trace_init;
   ops->to_download_tracepoint = tdefault_download_tracepoint;
diff --git a/gdb/target.c b/gdb/target.c
index 64c5cd6..6533e7e 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -717,7 +717,7 @@ update_current_target (void)
       INHERIT (to_magic, t);
       /* Do not inherit
 	 to_supports_evaluation_of_breakpoint_conditions.  */
-      INHERIT (to_can_run_breakpoint_commands, t);
+      /* Do not inherit to_can_run_breakpoint_commands.  */
       /* Do not inherit to_memory_map.  */
       /* Do not inherit to_flash_erase.  */
       /* Do not inherit to_flash_done.  */
@@ -749,9 +749,6 @@ update_current_target (void)
 	    (void (*) (struct target_ops *, ptid_t))
 	    target_ignore);
   current_target.to_read_description = NULL;
-  de_fault (to_can_run_breakpoint_commands,
-	    (int (*) (struct target_ops *))
-	    return_zero);
 
 #undef de_fault
 
diff --git a/gdb/target.h b/gdb/target.h
index 97c5384..44d270c 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -735,7 +735,8 @@ struct target_ops
 
     /* Does this target support evaluation of breakpoint commands on its
        end?  */
-    int (*to_can_run_breakpoint_commands) (struct target_ops *);
+    int (*to_can_run_breakpoint_commands) (struct target_ops *)
+      TARGET_DEFAULT_RETURN (0);
 
     /* Determine current architecture of thread PTID.