MI breakpoint notifications.

        * annotate.c (breakpoint_changed): Adjust parameter type.
        * breakpoint.c (set_breakpoint_condition): Adjust to change
        in breakpoint_modified type.
        (breakpoint_set_commands): Likewise.
        (do_map_commands_command): Likewise.
        (bpstat_check_breakpoint_conditions): Notify that breakpoint has
        changed after bumping hit count.
        (bpstat_stop_status): Likewise.
        (print_one_breakpoint_location): Don't wrap in tuple here.
        (print_one_breakpoint): Always print individual locations.
        For locations, use unnamed tuple.
        (disable_breakpoints_in_unloaded_shlib): Notify that breakpoint
        has changed.
        (create_catchpoint, create_syscall_event_catchpoint): Call
        breakpoint_created obsever.
        (mention): Don't call breakpoint_created observer.
        (create_breakpoint_sal): Call breakpoint_created observer.
        (create_breakpoint, watch_command_1): Likewise.
        (create_ada_exception_breakpoint): Likewise.
        (delete_breakpoint): Call breakpoint_deleted breakpoint.
        (locations_are_equal): New.
        (update_breakpoint_locations): If locations were changed, notify.
        (set_ignore_count, disable_breakpoint, do_enable_breakpoint):
        Call breakpoint_modified observer.

        * mi/mi-cmd-break.c (breakpoint_notify): Adjust.
        (mi_cmd_break_insert): Don't set observers for modify and delete.
        * mi/mi-interp.c (mi_suppress_breakpoint_notifications): New.
        (mi_breakpoint_created, mi_breakpoint_deleted)
        (mi_breakpoint_modified): New.
        (mi_interpreter_init): Hook the above.
        * mi/mi-main.c (mi_cmd_execute): Disable breakpoint notifications
        while -break-* commands are executing.
        * mi/mi-main.h (mi_suppress_breakpoint_notifications): New.
        * mi/mi-out.c (struct ui_out_data): New field original_buffer.
        (mi_redirect): New.
        (mi_ui_out_impl): Hook in mi_redirect.
        (mi_field_skip): True to the name, skip the field, don't output
        a field with an empty value.

        * python/py-breakpoint.c (gdbpy_breakpoint_created)
        (gdbpy_breakpoint_deleted): Adjust.
        * tui/tui-hooks.c (tui_event_create_breakpoint)
        (tui_event_delete_breakpoint, tui_event_modify_breakpoint): Adjust.

1 files changed, 22 insertions, 6 deletions

diff --git a/gdb/mi/mi-out.c b/gdb/mi/mi-out.c
index 9aaeec6..ea77e50 100644
--- a/gdb/mi/mi-out.c
+++ b/gdb/mi/mi-out.c
@@ -30,6 +30,7 @@ struct ui_out_data
     int suppress_output;
     int mi_version;
     struct ui_file *buffer;
+    struct ui_file *original_buffer;
   };
 typedef struct ui_out_data mi_out_data;
 
@@ -63,6 +64,7 @@ static void mi_message (struct ui_out *uiout, int verbosity,
      ATTRIBUTE_PRINTF (3, 0);
 static void mi_wrap_hint (struct ui_out *uiout, char *identstring);
 static void mi_flush (struct ui_out *uiout);
+static int mi_redirect (struct ui_out *uiout, struct ui_file *outstream);
 
 /* This is the MI ui-out implementation functions vector */
 
@@ -86,7 +88,7 @@ struct ui_out_impl mi_ui_out_impl =
   mi_message,
   mi_wrap_hint,
   mi_flush,
-  NULL,
+  mi_redirect,
   1, /* Needs MI hacks.  */
 };
 
@@ -210,11 +212,6 @@ void
 mi_field_skip (struct ui_out *uiout, int fldno, int width,
                enum ui_align alignment, const char *fldname)
 {
-  mi_out_data *data = ui_out_data (uiout);
-
-  if (data->suppress_output)
-    return;
-  mi_field_string (uiout, fldno, width, alignment, fldname, "");
 }
 
 /* other specific mi_field_* end up here so alignment and field
@@ -294,6 +291,25 @@ mi_flush (struct ui_out *uiout)
   gdb_flush (data->buffer);
 }
 
+int
+mi_redirect (struct ui_out *uiout, struct ui_file *outstream)
+{
+  mi_out_data *data = ui_out_data (uiout);
+
+  if (outstream != NULL)
+    {
+      data->original_buffer = data->buffer;
+      data->buffer = outstream;
+    }
+  else if (data->original_buffer != NULL)
+    {
+      data->buffer = data->original_buffer;
+      data->original_buffer = NULL;
+    }
+
+  return 0;
+}
+
 /* local functions */
 
 /* access to ui_out format private members */