X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fannotate.c;h=0a4e2f27cac0cb8579cc263f034fd51fe79bd783;hb=refs%2Fheads%2Fconcurrent-displaced-stepping-2020-04-01;hp=5491ddff3cd7a1ab80393076774677284860a65c;hpb=0c070b576928ae9d704c5daf24cdd0b232efa013;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/annotate.c b/gdb/annotate.c
index 5491ddff3c..0a4e2f27ca 100644
--- a/gdb/annotate.c
+++ b/gdb/annotate.c
@@ -1,21 +1,20 @@
 /* Annotation routines for GDB.
-   Copyright 1986, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
+   Copyright (C) 1986-2020 Free Software Foundation, Inc.
 
-This file is part of GDB.
+   This file is part of GDB.
 
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "annotate.h"
@@ -23,522 +22,613 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "target.h"
 #include "gdbtypes.h"
 #include "breakpoint.h"
+#include "observable.h"
+#include "inferior.h"
+#include "infrun.h"
+#include "top.h"
+#include "source.h"
+#include "objfiles.h"
+#include "source-cache.h"
 
-static void print_value_flags PARAMS ((struct type *));
+
+/* Prototypes for local functions.  */
+
+static void print_value_flags (struct type *);
+
+static void breakpoint_changed (struct breakpoint *b);
+
+
+void (*deprecated_annotate_signalled_hook) (void);
+void (*deprecated_annotate_signal_hook) (void);
+
+/* Booleans indicating whether we've emitted certain notifications.
+   Used to suppress useless repeated notifications until the next time
+   we're ready to accept more commands.  Reset whenever a prompt is
+   displayed.  */
+static int frames_invalid_emitted;
+static int breakpoints_invalid_emitted;
 
 static void
-print_value_flags (t)
-     struct type *t;
+print_value_flags (struct type *t)
 {
   if (can_dereference (t))
-    printf_filtered ("*");
+    printf_filtered (("*"));
   else
-    printf_filtered ("-");
+    printf_filtered (("-"));
 }
-
-void
-breakpoints_changed ()
+
+static void
+annotate_breakpoints_invalid (void)
 {
-  if (annotation_level > 1)
+  if (annotation_level == 2
+      && (!breakpoints_invalid_emitted
+	  || current_ui->prompt_state != PROMPT_BLOCKED))
     {
-      target_terminal_ours ();
-      printf_unfiltered ("\n\032\032breakpoints-invalid\n");
+      target_terminal::scoped_restore_terminal_state term_state;
+      target_terminal::ours_for_output ();
+
+      printf_unfiltered (("\n\032\032breakpoints-invalid\n"));
+      breakpoints_invalid_emitted = 1;
     }
 }
 
 void
-annotate_breakpoint (num)
-     int num;
+annotate_breakpoint (int num)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032breakpoint %d\n", num);
+    printf_filtered (("\n\032\032breakpoint %d\n"), num);
 }
 
 void
-annotate_watchpoint (num)
-     int num;
+annotate_catchpoint (int num)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032watchpoint %d\n", num);
+    printf_filtered (("\n\032\032catchpoint %d\n"), num);
 }
 
 void
-annotate_starting ()
+annotate_watchpoint (int num)
 {
   if (annotation_level > 1)
-    {
-      printf_filtered ("\n\032\032starting\n");
-      /* The starting annotation needs to appear before any output
-         from the inferior process.  */
-      gdb_flush (gdb_stdout);
-    }
+    printf_filtered (("\n\032\032watchpoint %d\n"), num);
 }
 
 void
-annotate_stopped ()
+annotate_starting (void)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032stopped\n");
+    printf_filtered (("\n\032\032starting\n"));
 }
 
 void
-annotate_exited (exitstatus)
-     int exitstatus;
+annotate_stopped (void)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032exited %d\n", exitstatus);
+    printf_filtered (("\n\032\032stopped\n"));
 }
 
 void
-annotate_signalled ()
+annotate_exited (int exitstatus)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032signalled\n");
+    printf_filtered (("\n\032\032exited %d\n"), exitstatus);
 }
 
 void
-annotate_signal_name ()
+annotate_signalled (void)
 {
+  if (deprecated_annotate_signalled_hook)
+    deprecated_annotate_signalled_hook ();
+
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032signal-name\n");
+    printf_filtered (("\n\032\032signalled\n"));
 }
 
 void
-annotate_signal_name_end ()
+annotate_signal_name (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032signal-name-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032signal-name\n"));
 }
 
 void
-annotate_signal_string ()
+annotate_signal_name_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032signal-string\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032signal-name-end\n"));
 }
 
 void
-annotate_signal_string_end ()
+annotate_signal_string (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032signal-string-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032signal-string\n"));
 }
 
 void
-annotate_signal ()
+annotate_signal_string_end (void)
 {
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032signal-string-end\n"));
+}
+
+void
+annotate_signal (void)
+{
+  if (deprecated_annotate_signal_hook)
+    deprecated_annotate_signal_hook ();
+
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032signal\n");
+    printf_filtered (("\n\032\032signal\n"));
 }
 
 void
-annotate_breakpoints_headers ()
+annotate_breakpoints_headers (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032breakpoints-headers\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032breakpoints-headers\n"));
 }
 
 void
-annotate_field (num)
-     int num;
+annotate_field (int num)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032field %d\n", num);
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032field %d\n"), num);
 }
 
 void
-annotate_breakpoints_table ()
+annotate_breakpoints_table (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032breakpoints-table\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032breakpoints-table\n"));
 }
 
 void
-annotate_record ()
+annotate_record (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032record\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032record\n"));
 }
 
 void
-annotate_breakpoints_table_end ()
+annotate_breakpoints_table_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032breakpoints-table-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032breakpoints-table-end\n"));
 }
 
 void
-annotate_frames_invalid ()
+annotate_frames_invalid (void)
+{
+  if (annotation_level == 2
+      && (!frames_invalid_emitted
+	  || current_ui->prompt_state != PROMPT_BLOCKED))
+    {
+      target_terminal::scoped_restore_terminal_state term_state;
+      target_terminal::ours_for_output ();
+
+      printf_unfiltered (("\n\032\032frames-invalid\n"));
+      frames_invalid_emitted = 1;
+    }
+}
+
+void
+annotate_new_thread (void)
 {
   if (annotation_level > 1)
     {
-      target_terminal_ours ();
-      printf_unfiltered ("\n\032\032frames-invalid\n");
+      printf_unfiltered (("\n\032\032new-thread\n"));
     }
 }
 
 void
-annotate_field_begin (type)
-     struct type *type;
+annotate_thread_changed (void)
+{
+  if (annotation_level > 1)
+    {
+      printf_unfiltered (("\n\032\032thread-changed\n"));
+    }
+}
+
+/* Emit notification on thread exit.  */
+
+static void
+annotate_thread_exited (struct thread_info *t, int silent)
 {
   if (annotation_level > 1)
     {
-      printf_filtered ("\n\032\032field-begin ");
+      printf_filtered(("\n\032\032thread-exited,"
+                       "id=\"%d\",group-id=\"i%d\"\n"),
+                      t->global_num, t->inf->num);
+    }
+}
+
+void
+annotate_field_begin (struct type *type)
+{
+  if (annotation_level == 2)
+    {
+      printf_filtered (("\n\032\032field-begin "));
       print_value_flags (type);
-      printf_filtered ("\n");
+      printf_filtered (("\n"));
     }
 }
 
 void
-annotate_field_name_end ()
+annotate_field_name_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032field-name-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032field-name-end\n"));
 }
 
 void
-annotate_field_value ()
+annotate_field_value (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032field-value\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032field-value\n"));
 }
 
 void
-annotate_field_end ()
+annotate_field_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032field-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032field-end\n"));
 }
 
 void
-annotate_quit ()
+annotate_quit (void)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032quit\n");
+    printf_filtered (("\n\032\032quit\n"));
 }
 
 void
-annotate_error ()
+annotate_error (void)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032error\n");
+    printf_filtered (("\n\032\032error\n"));
 }
 
 void
-annotate_error_begin ()
+annotate_error_begin (void)
 {
   if (annotation_level > 1)
     fprintf_filtered (gdb_stderr, "\n\032\032error-begin\n");
 }
 
 void
-annotate_value_history_begin (histindex, type)
-     int histindex;
-     struct type *type;
+annotate_value_history_begin (int histindex, struct type *type)
 {
-  if (annotation_level > 1)
+  if (annotation_level == 2)
     {
-      printf_filtered ("\n\032\032value-history-begin %d ", histindex);
+      printf_filtered (("\n\032\032value-history-begin %d "), histindex);
       print_value_flags (type);
-      printf_filtered ("\n");
+      printf_filtered (("\n"));
     }
 }
 
 void
-annotate_value_begin (type)
-     struct type *type;
+annotate_value_begin (struct type *type)
 {
-  if (annotation_level > 1)
+  if (annotation_level == 2)
     {
-      printf_filtered ("\n\032\032value-begin ");
+      printf_filtered (("\n\032\032value-begin "));
       print_value_flags (type);
-      printf_filtered ("\n");
+      printf_filtered (("\n"));
     }
 }
 
 void
-annotate_value_history_value ()
+annotate_value_history_value (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032value-history-value\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032value-history-value\n"));
 }
 
 void
-annotate_value_history_end ()
+annotate_value_history_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032value-history-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032value-history-end\n"));
 }
 
 void
-annotate_value_end ()
+annotate_value_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032value-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032value-end\n"));
 }
 
 void
-annotate_display_begin ()
+annotate_display_begin (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032display-begin\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032display-begin\n"));
 }
 
 void
-annotate_display_number_end ()
+annotate_display_number_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032display-number-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032display-number-end\n"));
 }
 
 void
-annotate_display_format ()
+annotate_display_format (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032display-format\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032display-format\n"));
 }
 
 void
-annotate_display_expression ()
+annotate_display_expression (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032display-expression\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032display-expression\n"));
 }
 
 void
-annotate_display_expression_end ()
+annotate_display_expression_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032display-expression-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032display-expression-end\n"));
 }
 
 void
-annotate_display_value ()
+annotate_display_value (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032display-value\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032display-value\n"));
 }
 
 void
-annotate_display_end ()
+annotate_display_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032display-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032display-end\n"));
 }
 
 void
-annotate_arg_begin ()
+annotate_arg_begin (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032arg-begin\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032arg-begin\n"));
 }
 
 void
-annotate_arg_name_end ()
+annotate_arg_name_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032arg-name-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032arg-name-end\n"));
 }
 
 void
-annotate_arg_value (type)
-     struct type *type;
+annotate_arg_value (struct type *type)
 {
-  if (annotation_level > 1)
+  if (annotation_level == 2)
     {
-      printf_filtered ("\n\032\032arg-value ");
+      printf_filtered (("\n\032\032arg-value "));
       print_value_flags (type);
-      printf_filtered ("\n");
+      printf_filtered (("\n"));
     }
 }
 
 void
-annotate_arg_end ()
+annotate_arg_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032arg-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032arg-end\n"));
 }
 
-void
-annotate_source (filename, line, character, mid, pc)
-     char *filename;
-     int line;
-     int character;
-     int mid;
-     CORE_ADDR pc;
+static void
+annotate_source (const char *filename, int line, int character, int mid,
+		 struct gdbarch *gdbarch, CORE_ADDR pc)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032source ");
+    printf_filtered (("\n\032\032source "));
   else
-    printf_filtered ("\032\032");
+    printf_filtered (("\032\032"));
 
-  printf_filtered ("%s:%d:%d:%s:", filename,
-		   line, character,
-		   mid ? "middle" : "beg");
-  print_address_numeric (pc, 0, gdb_stdout);
-  printf_filtered ("\n");
+  printf_filtered (("%s:%d:%d:%s:%s\n"), filename, line, character,
+		   mid ? "middle" : "beg", paddress (gdbarch, pc));
 }
 
-void
-annotate_frame_begin (level, pc)
-     int level;
-     CORE_ADDR pc;
+/* See annotate.h.  */
+
+bool
+annotate_source_line (struct symtab *s, int line, int mid_statement,
+		      CORE_ADDR pc)
 {
-  if (annotation_level > 1)
+  if (annotation_level > 0)
     {
-      printf_filtered ("\n\032\032frame-begin %d ", level);
-      print_address_numeric (pc, 0, gdb_stdout);
-      printf_filtered ("\n");
+      const std::vector<off_t> *offsets;
+      if (!g_source_cache.get_line_charpos (s, &offsets))
+	return false;
+      if (line > offsets->size ())
+	return false;
+
+      annotate_source (s->fullname, line, (int) (*offsets)[line - 1],
+		       mid_statement, SYMTAB_OBJFILE (s)->arch (),
+		       pc);
+
+      /* Update the current symtab and line.  */
+      symtab_and_line sal;
+      sal.pspace = SYMTAB_PSPACE (s);
+      sal.symtab = s;
+      sal.line = line;
+      set_current_source_symtab_and_line (sal);
+
+      return true;
     }
+
+  return false;
 }
 
+
 void
-annotate_function_call ()
+annotate_frame_begin (int level, struct gdbarch *gdbarch, CORE_ADDR pc)
 {
   if (annotation_level > 1)
-    printf_filtered ("\n\032\032function-call\n");
+    printf_filtered (("\n\032\032frame-begin %d %s\n"),
+		     level, paddress (gdbarch, pc));
 }
 
 void
-annotate_signal_handler_caller ()
+annotate_function_call (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032signal-handler-caller\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032function-call\n"));
 }
 
 void
-annotate_frame_address ()
+annotate_signal_handler_caller (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-address\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032signal-handler-caller\n"));
 }
 
 void
-annotate_frame_address_end ()
+annotate_frame_address (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-address-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-address\n"));
 }
 
 void
-annotate_frame_function_name ()
+annotate_frame_address_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-function-name\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-address-end\n"));
 }
 
 void
-annotate_frame_args ()
+annotate_frame_function_name (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-args\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-function-name\n"));
 }
 
 void
-annotate_frame_source_begin ()
+annotate_frame_args (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-source-begin\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-args\n"));
 }
 
 void
-annotate_frame_source_file ()
+annotate_frame_source_begin (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-source-file\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-source-begin\n"));
 }
 
 void
-annotate_frame_source_file_end ()
+annotate_frame_source_file (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-source-file-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-source-file\n"));
 }
 
 void
-annotate_frame_source_line ()
+annotate_frame_source_file_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-source-line\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-source-file-end\n"));
 }
 
 void
-annotate_frame_source_end ()
+annotate_frame_source_line (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-source-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-source-line\n"));
 }
 
 void
-annotate_frame_where ()
+annotate_frame_source_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-where\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-source-end\n"));
 }
 
 void
-annotate_frame_end ()
+annotate_frame_where (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032frame-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-where\n"));
+}
+
+void
+annotate_frame_end (void)
+{
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032frame-end\n"));
 }
 
 void
-annotate_array_section_begin (index, elttype)
-     int index;
-     struct type *elttype;
+annotate_array_section_begin (int idx, struct type *elttype)
 {
-  if (annotation_level > 1)
+  if (annotation_level == 2)
     {
-      printf_filtered ("\n\032\032array-section-begin %d ", index);
+      printf_filtered (("\n\032\032array-section-begin %d "), idx);
       print_value_flags (elttype);
-      printf_filtered ("\n");
+      printf_filtered (("\n"));
     }
 }
 
 void
-annotate_elt_rep (repcount)
-     unsigned int repcount;
+annotate_elt_rep (unsigned int repcount)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032elt-rep %u\n", repcount);
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032elt-rep %u\n"), repcount);
 }
 
 void
-annotate_elt_rep_end ()
+annotate_elt_rep_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032elt-rep-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032elt-rep-end\n"));
 }
 
 void
-annotate_elt ()
+annotate_elt (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032elt\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032elt\n"));
 }
 
 void
-annotate_array_section_end ()
+annotate_array_section_end (void)
 {
-  if (annotation_level > 1)
-    printf_filtered ("\n\032\032array-section-end\n");
+  if (annotation_level == 2)
+    printf_filtered (("\n\032\032array-section-end\n"));
+}
+
+/* Called when GDB is about to display the prompt.  Used to reset
+   annotation suppression whenever we're ready to accept new
+   frontend/user commands.  */
+
+void
+annotate_display_prompt (void)
+{
+  frames_invalid_emitted = 0;
+  breakpoints_invalid_emitted = 0;
 }
 
 static void
-breakpoint_changed (b)
-     struct breakpoint *b;
+breakpoint_changed (struct breakpoint *b)
 {
-  breakpoints_changed ();
+  if (b->number <= 0)
+    return;
+
+  annotate_breakpoints_invalid ();
 }
 
+void _initialize_annotate ();
 void
 _initialize_annotate ()
 {
-  if (annotation_level > 1)
-    {
-      delete_breakpoint_hook = breakpoint_changed;
-      enable_breakpoint_hook = breakpoint_changed;
-      disable_breakpoint_hook = breakpoint_changed;
-    }
+  gdb::observers::breakpoint_created.attach (breakpoint_changed);
+  gdb::observers::breakpoint_deleted.attach (breakpoint_changed);
+  gdb::observers::breakpoint_modified.attach (breakpoint_changed);
+  gdb::observers::thread_exit.attach (annotate_thread_exited);
 }