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c90e7d6352
Give a name to each observer, this will help produce more meaningful debug message. gdbsupport/ChangeLog: * observable.h (class observable) <struct observer> <observer>: Add name parameter. <name>: New field. <attach>: Add name parameter, update all callers. Change-Id: Ie0cc4664925215b8d2b09e026011b7803549fba0
635 lines
13 KiB
C
635 lines
13 KiB
C
/* Annotation routines for GDB.
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Copyright (C) 1986-2021 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "annotate.h"
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#include "value.h"
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#include "target.h"
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#include "gdbtypes.h"
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#include "breakpoint.h"
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#include "observable.h"
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#include "inferior.h"
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#include "infrun.h"
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#include "top.h"
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#include "source.h"
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#include "objfiles.h"
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#include "source-cache.h"
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/* Prototypes for local functions. */
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static void print_value_flags (struct type *);
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static void breakpoint_changed (struct breakpoint *b);
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void (*deprecated_annotate_signalled_hook) (void);
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void (*deprecated_annotate_signal_hook) (void);
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/* Booleans indicating whether we've emitted certain notifications.
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Used to suppress useless repeated notifications until the next time
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we're ready to accept more commands. Reset whenever a prompt is
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displayed. */
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static int frames_invalid_emitted;
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static int breakpoints_invalid_emitted;
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static void
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print_value_flags (struct type *t)
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{
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if (can_dereference (t))
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printf_filtered (("*"));
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else
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printf_filtered (("-"));
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}
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static void
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annotate_breakpoints_invalid (void)
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{
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if (annotation_level == 2
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&& (!breakpoints_invalid_emitted
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|| current_ui->prompt_state != PROMPT_BLOCKED))
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{
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target_terminal::scoped_restore_terminal_state term_state;
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target_terminal::ours_for_output ();
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printf_unfiltered (("\n\032\032breakpoints-invalid\n"));
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breakpoints_invalid_emitted = 1;
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}
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}
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void
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annotate_breakpoint (int num)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032breakpoint %d\n"), num);
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}
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void
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annotate_catchpoint (int num)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032catchpoint %d\n"), num);
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}
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void
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annotate_watchpoint (int num)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032watchpoint %d\n"), num);
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}
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void
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annotate_starting (void)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032starting\n"));
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}
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void
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annotate_stopped (void)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032stopped\n"));
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}
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void
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annotate_exited (int exitstatus)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032exited %d\n"), exitstatus);
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}
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void
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annotate_signalled (void)
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{
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if (deprecated_annotate_signalled_hook)
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deprecated_annotate_signalled_hook ();
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if (annotation_level > 1)
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printf_filtered (("\n\032\032signalled\n"));
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}
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void
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annotate_signal_name (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032signal-name\n"));
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}
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void
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annotate_signal_name_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032signal-name-end\n"));
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}
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void
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annotate_signal_string (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032signal-string\n"));
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}
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void
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annotate_signal_string_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032signal-string-end\n"));
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}
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void
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annotate_signal (void)
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{
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if (deprecated_annotate_signal_hook)
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deprecated_annotate_signal_hook ();
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if (annotation_level > 1)
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printf_filtered (("\n\032\032signal\n"));
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}
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void
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annotate_breakpoints_headers (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032breakpoints-headers\n"));
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}
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void
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annotate_field (int num)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032field %d\n"), num);
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}
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void
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annotate_breakpoints_table (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032breakpoints-table\n"));
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}
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void
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annotate_record (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032record\n"));
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}
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void
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annotate_breakpoints_table_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032breakpoints-table-end\n"));
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}
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void
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annotate_frames_invalid (void)
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{
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if (annotation_level == 2
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&& (!frames_invalid_emitted
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|| current_ui->prompt_state != PROMPT_BLOCKED))
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{
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target_terminal::scoped_restore_terminal_state term_state;
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target_terminal::ours_for_output ();
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printf_unfiltered (("\n\032\032frames-invalid\n"));
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frames_invalid_emitted = 1;
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}
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}
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void
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annotate_new_thread (void)
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{
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if (annotation_level > 1)
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{
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printf_unfiltered (("\n\032\032new-thread\n"));
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}
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}
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void
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annotate_thread_changed (void)
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{
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if (annotation_level > 1)
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{
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printf_unfiltered (("\n\032\032thread-changed\n"));
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}
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}
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/* Emit notification on thread exit. */
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static void
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annotate_thread_exited (struct thread_info *t, int silent)
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{
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if (annotation_level > 1)
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{
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printf_filtered(("\n\032\032thread-exited,"
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"id=\"%d\",group-id=\"i%d\"\n"),
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t->global_num, t->inf->num);
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}
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}
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void
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annotate_field_begin (struct type *type)
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{
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if (annotation_level == 2)
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{
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printf_filtered (("\n\032\032field-begin "));
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print_value_flags (type);
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printf_filtered (("\n"));
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}
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}
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void
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annotate_field_name_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032field-name-end\n"));
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}
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void
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annotate_field_value (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032field-value\n"));
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}
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void
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annotate_field_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032field-end\n"));
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}
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void
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annotate_quit (void)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032quit\n"));
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}
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void
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annotate_error (void)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032error\n"));
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}
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void
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annotate_error_begin (void)
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{
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if (annotation_level > 1)
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fprintf_filtered (gdb_stderr, "\n\032\032error-begin\n");
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}
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void
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annotate_value_history_begin (int histindex, struct type *type)
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{
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if (annotation_level == 2)
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{
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printf_filtered (("\n\032\032value-history-begin %d "), histindex);
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print_value_flags (type);
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printf_filtered (("\n"));
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}
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}
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void
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annotate_value_begin (struct type *type)
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{
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if (annotation_level == 2)
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{
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printf_filtered (("\n\032\032value-begin "));
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print_value_flags (type);
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printf_filtered (("\n"));
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}
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}
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void
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annotate_value_history_value (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032value-history-value\n"));
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}
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void
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annotate_value_history_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032value-history-end\n"));
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}
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void
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annotate_value_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032value-end\n"));
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}
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void
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annotate_display_begin (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032display-begin\n"));
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}
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void
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annotate_display_number_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032display-number-end\n"));
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}
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void
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annotate_display_format (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032display-format\n"));
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}
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void
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annotate_display_expression (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032display-expression\n"));
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}
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void
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annotate_display_expression_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032display-expression-end\n"));
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}
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void
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annotate_display_value (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032display-value\n"));
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}
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void
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annotate_display_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032display-end\n"));
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}
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void
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annotate_arg_begin (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032arg-begin\n"));
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}
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void
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annotate_arg_name_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032arg-name-end\n"));
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}
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void
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annotate_arg_value (struct type *type)
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{
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if (annotation_level == 2)
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{
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printf_filtered (("\n\032\032arg-value "));
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print_value_flags (type);
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printf_filtered (("\n"));
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}
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}
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void
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annotate_arg_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032arg-end\n"));
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}
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static void
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annotate_source (const char *filename, int line, int character, int mid,
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struct gdbarch *gdbarch, CORE_ADDR pc)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032source "));
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else
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printf_filtered (("\032\032"));
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printf_filtered (("%s:%d:%d:%s:%s\n"), filename, line, character,
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mid ? "middle" : "beg", paddress (gdbarch, pc));
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}
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/* See annotate.h. */
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bool
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annotate_source_line (struct symtab *s, int line, int mid_statement,
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CORE_ADDR pc)
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{
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if (annotation_level > 0)
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{
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const std::vector<off_t> *offsets;
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if (!g_source_cache.get_line_charpos (s, &offsets))
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return false;
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if (line > offsets->size ())
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return false;
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annotate_source (s->fullname, line, (int) (*offsets)[line - 1],
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mid_statement, SYMTAB_OBJFILE (s)->arch (),
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pc);
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/* Update the current symtab and line. */
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symtab_and_line sal;
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sal.pspace = SYMTAB_PSPACE (s);
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sal.symtab = s;
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sal.line = line;
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set_current_source_symtab_and_line (sal);
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return true;
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}
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return false;
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}
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void
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annotate_frame_begin (int level, struct gdbarch *gdbarch, CORE_ADDR pc)
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{
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if (annotation_level > 1)
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printf_filtered (("\n\032\032frame-begin %d %s\n"),
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level, paddress (gdbarch, pc));
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}
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void
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annotate_function_call (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032function-call\n"));
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}
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void
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annotate_signal_handler_caller (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032signal-handler-caller\n"));
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}
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void
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annotate_frame_address (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-address\n"));
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}
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void
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annotate_frame_address_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-address-end\n"));
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}
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void
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annotate_frame_function_name (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-function-name\n"));
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}
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void
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annotate_frame_args (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-args\n"));
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}
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void
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annotate_frame_source_begin (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-source-begin\n"));
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}
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void
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annotate_frame_source_file (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-source-file\n"));
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}
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void
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annotate_frame_source_file_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-source-file-end\n"));
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}
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void
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annotate_frame_source_line (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-source-line\n"));
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}
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void
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annotate_frame_source_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-source-end\n"));
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}
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void
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annotate_frame_where (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-where\n"));
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}
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void
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annotate_frame_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032frame-end\n"));
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}
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void
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annotate_array_section_begin (int idx, struct type *elttype)
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{
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if (annotation_level == 2)
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{
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printf_filtered (("\n\032\032array-section-begin %d "), idx);
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print_value_flags (elttype);
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printf_filtered (("\n"));
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}
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}
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void
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annotate_elt_rep (unsigned int repcount)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032elt-rep %u\n"), repcount);
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}
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void
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annotate_elt_rep_end (void)
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{
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if (annotation_level == 2)
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printf_filtered (("\n\032\032elt-rep-end\n"));
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}
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void
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annotate_elt (void)
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{
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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)
|
||
{
|
||
if (b->number <= 0)
|
||
return;
|
||
|
||
annotate_breakpoints_invalid ();
|
||
}
|
||
|
||
void _initialize_annotate ();
|
||
void
|
||
_initialize_annotate ()
|
||
{
|
||
gdb::observers::breakpoint_created.attach (breakpoint_changed, "annotate");
|
||
gdb::observers::breakpoint_deleted.attach (breakpoint_changed, "annotate");
|
||
gdb::observers::breakpoint_modified.attach (breakpoint_changed, "annotate");
|
||
gdb::observers::thread_exit.attach (annotate_thread_exited, "annotate");
|
||
}
|