binutils-gdb/gdb/annotate.c
Pedro Alves 9c97429fb1 All annotate_breakpoints_changed calls are along-side
observer_notify_breakpoints_changed calls.  All, except the
init_raw_breakpoint one.  But that one is actually wrong.  The
breakpoint is being constructed at that point, and hasn't been placed
on the breakpoint chain yet.  It would be better placed in
install_breakpoint, and I actually started out that way.  But once the
annotate_breakpoints_changed are parallel to the observer calls, we
can fully move annotations to observers too.

One issue is that this changes the order of annotations a bit.
Before, we'd emit the annotation, and after call "mention()" on the
breakpoint (which prints the breakpoint number, etc.).  But, we call
the observers _after_ mention is called, so the annotation output will
change a little:

void
install_breakpoint (int internal, struct breakpoint *b, int update_gll)
{
  add_to_breakpoint_chain (b);
  set_breakpoint_number (internal, b);
  if (is_tracepoint (b))
    set_tracepoint_count (breakpoint_count);
  if (!internal)
    mention (b);
  observer_notify_breakpoint_created (b);

  if (update_gll)
    update_global_location_list (1);
}

I believe this order doesn't really matter (the frontend needs to wait
for the prompt anyway), so I just adjust the expected output in the
tests.  Emacs in annotations mode doesn't seem to complain.  Couple
that with the previous patch that suppressed duplicated annotations,
and, the fact that some annotations calls were actually missing (were
we do have observer calls), more changes to the tests are needed
anyway.

Tested on x86_64 Fedora 17.

gdb/
2013-01-22  Pedro Alves  <palves@redhat.com>

	* annotate.c (annotate_breakpoints_changed): Rename to ...
	(annotate_breakpoints_invalid): ... this.  Make static.
	(breakpoint_changed): Adjust.
	(_initialize_annotate): Always install the observers.  Install a
	"breakpoint_created" observer.
	* annotate.h (annotate_breakpoints_changed): Delete declaration.
	* breakpoint.c (set_breakpoint_condition)
	(breakpoint_set_commands, do_map_commands_command)
	(init_raw_breakpoint, clear_command, set_ignore_count)
	(enable_breakpoint_disp): No longer call
	annotate_breakpoints_changed.

gdb/testsuite/
2013-01-22  Pedro Alves  <palves@redhat.com>

	* gdb.base/annota1.exp (breakpoints_invalid): New variable.
	Adjust tests to breakpoints-invalid changes.
	* gdb.cp/annota2.exp (breakpoints_invalid, frames_invalid): New
	variables.
	Adjust tests to breakpoints-invalid changes.
2013-01-22 20:19:40 +00:00

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/* Annotation routines for GDB.
Copyright (C) 1986-2013 Free Software Foundation, Inc.
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 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.
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"
#include "value.h"
#include "target.h"
#include "gdbtypes.h"
#include "breakpoint.h"
#include "observer.h"
#include "inferior.h"
/* Prototypes for local functions. */
extern void _initialize_annotate (void);
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;
/* True if the target can async, and a synchronous execution command
is not in progress. If true, input is accepted, so don't suppress
annotations. */
static int
async_background_execution_p (void)
{
return (target_can_async_p () && !sync_execution);
}
static void
print_value_flags (struct type *t)
{
if (can_dereference (t))
printf_filtered (("*"));
else
printf_filtered (("-"));
}
static void
annotate_breakpoints_invalid (void)
{
if (annotation_level == 2
&& (!breakpoints_invalid_emitted
|| async_background_execution_p ()))
{
target_terminal_ours ();
printf_unfiltered (("\n\032\032breakpoints-invalid\n"));
breakpoints_invalid_emitted = 1;
}
}
void
annotate_breakpoint (int num)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032breakpoint %d\n"), num);
}
void
annotate_catchpoint (int num)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032catchpoint %d\n"), num);
}
void
annotate_watchpoint (int num)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032watchpoint %d\n"), num);
}
void
annotate_starting (void)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032starting\n"));
}
void
annotate_stopped (void)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032stopped\n"));
}
void
annotate_exited (int exitstatus)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032exited %d\n"), exitstatus);
}
void
annotate_signalled (void)
{
if (deprecated_annotate_signalled_hook)
deprecated_annotate_signalled_hook ();
if (annotation_level > 1)
printf_filtered (("\n\032\032signalled\n"));
}
void
annotate_signal_name (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032signal-name\n"));
}
void
annotate_signal_name_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032signal-name-end\n"));
}
void
annotate_signal_string (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032signal-string\n"));
}
void
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"));
}
void
annotate_breakpoints_headers (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032breakpoints-headers\n"));
}
void
annotate_field (int num)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032field %d\n"), num);
}
void
annotate_breakpoints_table (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032breakpoints-table\n"));
}
void
annotate_record (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032record\n"));
}
void
annotate_breakpoints_table_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032breakpoints-table-end\n"));
}
void
annotate_frames_invalid (void)
{
if (annotation_level == 2
&& (!frames_invalid_emitted
|| async_background_execution_p ()))
{
target_terminal_ours ();
printf_unfiltered (("\n\032\032frames-invalid\n"));
frames_invalid_emitted = 1;
}
}
void
annotate_new_thread (void)
{
if (annotation_level > 1)
{
printf_unfiltered (("\n\032\032new-thread\n"));
}
}
void
annotate_thread_changed (void)
{
if (annotation_level > 1)
{
printf_unfiltered (("\n\032\032thread-changed\n"));
}
}
void
annotate_field_begin (struct type *type)
{
if (annotation_level == 2)
{
printf_filtered (("\n\032\032field-begin "));
print_value_flags (type);
printf_filtered (("\n"));
}
}
void
annotate_field_name_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032field-name-end\n"));
}
void
annotate_field_value (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032field-value\n"));
}
void
annotate_field_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032field-end\n"));
}
void
annotate_quit (void)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032quit\n"));
}
void
annotate_error (void)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032error\n"));
}
void
annotate_error_begin (void)
{
if (annotation_level > 1)
fprintf_filtered (gdb_stderr, "\n\032\032error-begin\n");
}
void
annotate_value_history_begin (int histindex, struct type *type)
{
if (annotation_level == 2)
{
printf_filtered (("\n\032\032value-history-begin %d "), histindex);
print_value_flags (type);
printf_filtered (("\n"));
}
}
void
annotate_value_begin (struct type *type)
{
if (annotation_level == 2)
{
printf_filtered (("\n\032\032value-begin "));
print_value_flags (type);
printf_filtered (("\n"));
}
}
void
annotate_value_history_value (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032value-history-value\n"));
}
void
annotate_value_history_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032value-history-end\n"));
}
void
annotate_value_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032value-end\n"));
}
void
annotate_display_begin (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032display-begin\n"));
}
void
annotate_display_number_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032display-number-end\n"));
}
void
annotate_display_format (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032display-format\n"));
}
void
annotate_display_expression (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032display-expression\n"));
}
void
annotate_display_expression_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032display-expression-end\n"));
}
void
annotate_display_value (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032display-value\n"));
}
void
annotate_display_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032display-end\n"));
}
void
annotate_arg_begin (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032arg-begin\n"));
}
void
annotate_arg_name_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032arg-name-end\n"));
}
void
annotate_arg_value (struct type *type)
{
if (annotation_level == 2)
{
printf_filtered (("\n\032\032arg-value "));
print_value_flags (type);
printf_filtered (("\n"));
}
}
void
annotate_arg_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032arg-end\n"));
}
void
annotate_source (char *filename, int line, int character, int mid,
struct gdbarch *gdbarch, CORE_ADDR pc)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032source "));
else
printf_filtered (("\032\032"));
printf_filtered (("%s:%d:%d:%s:%s\n"), filename, line, character,
mid ? "middle" : "beg", paddress (gdbarch, pc));
}
void
annotate_frame_begin (int level, struct gdbarch *gdbarch, CORE_ADDR pc)
{
if (annotation_level > 1)
printf_filtered (("\n\032\032frame-begin %d %s\n"),
level, paddress (gdbarch, pc));
}
void
annotate_function_call (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032function-call\n"));
}
void
annotate_signal_handler_caller (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032signal-handler-caller\n"));
}
void
annotate_frame_address (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-address\n"));
}
void
annotate_frame_address_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-address-end\n"));
}
void
annotate_frame_function_name (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-function-name\n"));
}
void
annotate_frame_args (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-args\n"));
}
void
annotate_frame_source_begin (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-source-begin\n"));
}
void
annotate_frame_source_file (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-source-file\n"));
}
void
annotate_frame_source_file_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-source-file-end\n"));
}
void
annotate_frame_source_line (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-source-line\n"));
}
void
annotate_frame_source_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032frame-source-end\n"));
}
void
annotate_frame_where (void)
{
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 (int idx, struct type *elttype)
{
if (annotation_level == 2)
{
printf_filtered (("\n\032\032array-section-begin %d "), idx);
print_value_flags (elttype);
printf_filtered (("\n"));
}
}
void
annotate_elt_rep (unsigned int repcount)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032elt-rep %u\n"), repcount);
}
void
annotate_elt_rep_end (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032elt-rep-end\n"));
}
void
annotate_elt (void)
{
if (annotation_level == 2)
printf_filtered (("\n\032\032elt\n"));
}
void
annotate_array_section_end (void)
{
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 (struct breakpoint *b)
{
annotate_breakpoints_invalid ();
}
void
_initialize_annotate (void)
{
observer_attach_breakpoint_created (breakpoint_changed);
observer_attach_breakpoint_deleted (breakpoint_changed);
observer_attach_breakpoint_modified (breakpoint_changed);
}