7 files changed, 4302 insertions, 4474 deletions

diff --git a/doc/emacs/building.texi b/doc/emacs/building.texi
index a5ce5f20c7b..343eb646a83 100644
--- a/doc/emacs/building.texi
+++ b/doc/emacs/building.texi
@@ -854,12 +854,11 @@ multiple programs within one Emacs session.
 * Source Buffers::              Use the mouse in the fringe/margin to
                                 control your program.
 * Breakpoints Buffer::          A breakpoint control panel.
-* Threads Buffer::              Displays your threads.
 * Stack Buffer::                Select a frame from the call stack.
 * Other GDB-UI Buffers::        Input/output, locals, registers,
                                 assembler, threads and memory buffers.
 * Watch Expressions::           Monitor variable values in the speedbar.
-* Multithreaded Debugging::     Debugging programs with several threads.
+* Reverse Debugging::           Execute and reverse debug your program.
 @end menu
 
 @node GDB-UI Layout
@@ -884,7 +883,7 @@ displays the following frame layout:
 |--------------------------------+--------------------------------+
 |   Primary Source buffer        |   I/O buffer for debugged pgm  |
 |--------------------------------+--------------------------------+
-|   Stack buffer                 |   Breakpoints/Thread buffer    |
+|   Stack buffer                 |   Breakpoints/Threads buffer   |
 +--------------------------------+--------------------------------+
 @end group
 @end smallexample
@@ -1012,92 +1011,10 @@ Visit the source line for the current breakpoint
 Visit the source line for the breakpoint you click on.
 @end table
 
-@vindex gdb-show-threads-by-default
 When @code{gdb-many-windows} is non-@code{nil}, the breakpoints buffer
 shares its window with the threads buffer.  To switch from one to the
 other click with @kbd{Mouse-1} on the relevant button in the header
-line, or press @kbd{TAB} inside that buffer.  If
-@code{gdb-show-threads-by-default} is non-@code{nil}, the threads
-buffer, rather than the breakpoints buffer, is shown at start up.
-
-@node Threads Buffer
-@subsubsection Threads Buffer
-
-@findex gdb-select-thread
-The threads buffer displays a summary of all threads currently in your
-program (@pxref{Threads, Threads, Debugging programs with multiple
-threads, gdb, The GNU debugger}).  Move point to any thread in the list
-and press @key{RET} to select it (@code{gdb-select-thread}) and
-display the associated source in the primary source buffer.
-Alternatively, click @kbd{Mouse-2} on a thread to select it.  Contents
-of all GDB buffers are updated whenever you select a thread.
-
-  You can customize variables under @code{gdb-buffers} group to select
-fields included in threads buffer.
-
-@table @code
-@item gdb-thread-buffer-verbose-names
-@vindex gdb-thread-buffer-verbose-names
-Show long thread names like @samp{Thread 0x4e2ab70 (LWP 1983)} in
-threads buffer.
-
-@item gdb-thread-buffer-arguments
-@vindex gdb-thread-buffer-arguments
-Show arguments of thread top frames in threads buffer.
-
-@item gdb-thread-buffer-locations
-@vindex gdb-thread-buffer-locations
-Show file information or library names in threads buffer.
-
-@item gdb-thread-buffer-addresses
-@vindex gdb-thread-buffer-addresses
-Show addresses for thread frames in threads buffer.
-@end table
-
-  It’s possible to observe information for several threads
-simultaneously (in addition to buffers which show information for
-currently selected thread) using the following keys from the threads
-buffer.
-
-@table @kbd
-@item d
-@kindex d @r{(GDB threads buffer)}
-@findex gdb-display-disassembly-for-thread
-Display disassembly buffer for the thread at current line.
-(@code{gdb-display-disassembly-for-thread})
-
-@item f
-@kindex f @r{(GDB threads buffer)}
-@findex gdb-display-stack-for-thread
-Display stack buffer for the thread at current line.
-(@code{gdb-display-stack-for-thread}).
-
-@item l
-@kindex l @r{(GDB threads buffer)}
-@findex gdb-display-locals-for-thread
-Display locals buffer for the thread at current line.
-(@code{gdb-display-locals-for-thread}).
-
-@item r
-@kindex r @r{(GDB threads buffer)}
-@findex gdb-display-registers-for-thread
-Display registers buffer for the thread at current line.
-(@code{gdb-display-registers-for-thread}).
-@end table
-
-Pressing their upper-case counterparts, @kbd{D}, @kbd{F} ,@kbd{L} and
-@kbd{R} displays the corresponding buffer in a new frame.
-
-  When you create a buffer showing information about some specific
-thread, it becomes bound to that thread and keeps showing actual
-information while you debug your program.  Every GDB buffer contains a
-number of thread it shows information for in its mode name.  Thread
-number is also included in the buffer name of bound buffers to prevent
-buffer names clashing.
-
-Further commands are available in the threads buffer which depend on the
-mode of GDB that is used for controlling execution of your program.
-(@pxref{Multithreaded Debugging, Stopping and Starting Multi-threaded Programs}).
+line.
 
 @node Stack Buffer
 @subsubsection Stack Buffer
@@ -1134,7 +1051,7 @@ as are the commands to send signals to the debugged program.
 @item Locals Buffer
 The locals buffer displays the values of local variables of the
 current frame for simple data types (@pxref{Frame Info, Frame Info,
-Information on a frame, gdb, The GNU debugger}). Press @key{RET} or
+Information on a frame, gdb, The GNU debugger}).  Press @key{RET} or
 click @kbd{Mouse-2} on the value if you want to edit it.
 
 Arrays and structures display their type only.  With GDB 6.4 or later,
@@ -1153,12 +1070,27 @@ With GDB 6.4 or later, recently changed register values display with
 press @key{SPC} to toggle the display of floating point registers
 (@code{toggle-gdb-all-registers}).
 
-@item Disassembly Buffer
-The disassembly buffer displays the current frame as machine code.  An
+@item Assembler Buffer
+The assembler buffer displays the current frame as machine code.  An
 arrow points to the current instruction, and you can set and remove
 breakpoints as in a source buffer.  Breakpoint icons also appear in
 the fringe or margin.
 
+@item Threads Buffer
+@findex gdb-threads-select
+The threads buffer displays a summary of all threads currently in your
+program (@pxref{Threads, Threads, Debugging programs with multiple
+threads, gdb, The GNU debugger}).  Move point to any thread in the
+list and press @key{RET} to select it (@code{gdb-threads-select}) and
+display the associated source in the primary source buffer.
+Alternatively, click @kbd{Mouse-2} on a thread to select it.  If the
+locals buffer is visible, its contents update to display the variables
+that are local in the new thread.
+
+When there is more than one main thread and the threads buffer is
+present, Emacs displays the selected thread number in the mode line of
+many of the GDB-UI Buffers.
+
 @item Memory Buffer
 The memory buffer lets you examine sections of program memory
 (@pxref{Memory, Memory, Examining memory, gdb, The GNU debugger}).
@@ -1171,9 +1103,8 @@ size for these data items.
 
 When @code{gdb-many-windows} is non-@code{nil}, the threads buffer
 shares its window with the breakpoints buffer, and the locals buffer
-with the registers buffer. To switch from one to the other click with
-@kbd{Mouse-1} on the relevant button in the header line or press
-@kbd{TAB} inside the buffer.
+with the registers buffer.  To switch from one to the other click with
+@kbd{Mouse-1} on the relevant button in the header line.
 
 @node Watch Expressions
 @subsubsection Watch Expressions
@@ -1241,96 +1172,26 @@ expressions updates, set @code{gdb-speedbar-auto-raise} to
 non-@code{nil}.  This can be useful if you are debugging with a full
 screen Emacs frame.
 
-@node Multithreaded Debugging
-@subsubsection Stopping and Starting Multi-threaded Programs
-@cindex Multithreaded debugging in GDB
-
-@subsubheading All-stop Debugging
-
-In all-stop mode, whenever your program stops, @emph{all} threads of
-execution stop.  Likewise, whenever you restart the program, all
-threads start executing.  @xref{All-Stop Mode, , All-Stop Mode, gdb,
-The GNU debugger}.  You can enable this behaviour in Emacs by setting
-@code{gdb-non-stop-setting} to @code{nil} before starting a debugging
-session.
-
-@subsubheading Non-stop Debugging
-@cindex Non-stop debugging in GDB
-
-For some multi-threaded targets, GDB supports a further mode of
-operation in which you can examine stopped program threads in the
-debugger while other threads continue to execute freely.
-@xref{Non-Stop Mode, , Non-Stop Mode, gdb, The GNU debugger}.
-This is referred to as @dfn{non-stop} mode.
-
-Versions of GDB prior to 7.0 do not support non-stop mode and it does
-not work on all targets.  In such cases, Emacs uses all-stop mode
-regardless of the value of @code{gdb-non-stop-setting}.
-
-@vindex gdb-non-stop-setting
-If the variable @code{gdb-non-stop-setting} is non-@code{nil} (the
-default value), Emacs tries to start GDB in non-stop mode.  Note that
-GDB debugging session needs to be restarted for change of this setting
-to take effect.
-
-@vindex gdb-switch-when-another-stopped
-When a thread stops in non-stop mode, Emacs automatically switches to
-that thread.  It may be undesirable to allow switching of current
-thread when some other stopped thread is already selected.  Set
-@code{gdb-switch-when-another-stopped} to @code{nil} to prevent this.
-
-@vindex gdb-switch-reasons
-Emacs can decide whether or not to switch to the stopped thread
-depending on the reason which caused the stop.  Customize
-@code{gdb-switch-reasons} to select stop reasons which make Emacs
-switch thread.
-
-@vindex gdb-stopped-hooks
-The variable @code{gdb-stopped-hooks} allows you to execute your
-functions whenever some thread stops.
-
-  In non-stop mode, you can switch between different modes for GUD
-execution control commands.
-
-@vindex gdb-gud-control-all-threads
-@table @dfn
-@item Non-stop/A
-
-When @code{gdb-gud-control-all-threads} is @code{t} (the default
-value), interruption and continuation commands apply to all threads,
-so you can halt or continue all your threads with one command using
-@code{gud-stop-subjob} and @code{gud-cont}, respectively.  The
-@samp{Go} button is shown on the toolbar when at least one thread is
-stopped, whereas @samp{Stop} button is shown when at least one thread
-is running.
-
-@item Non-stop/T
-
-When @code{gdb-gud-control-all-threads} is @code{nil}, only the
-current thread is stopped/continued.  @samp{Go} and @samp{Stop}
-buttons on the GUD toolbar are shown depending on the state of current
-thread.
-@end table
-
-You can change the current value of @code{gdb-gud-control-all-threads}
-from the tool bar or from @samp{GUD->GDB-MI} menu.
-
-  Stepping commands always apply to the current thread.
-
-@subsubheading Fine Thread Control
-
-  In non-stop mode, you can interrupt/continue your threads without
-selecting them.  Hitting @kbd{i} in threads buffer interrupts thread
-under point, @kbd{c} continues it, @kbd{s} steps through.  More such
-commands may be added in the future.
-
-Combined with creating bound buffers for any thread, this allows you
-to change and track state of many threads in the same time.
-
-  Note that when you interrupt a thread, it stops with @samp{signal
-received} reason.  If that reason is included in your
-@code{gdb-switch-reasons} (it is by default), Emacs will switch to
-that thread.
+@node Reverse Debugging
+@subsubsection Reverse Debugging
+
+  The GDB tool bar shares many buttons with the other GUD debuggers
+for tasks like stepping and printing expressions.  It also has a
+further set of buttons that allow reverse debugging (@pxref{Process
+Record and Replay, , ,gdb, The GNU debugger}).  This is useful when it
+takes a long time to reproduce the conditions where your program fails
+or for transient problems, like race conditions in multi-threaded
+programs, where a failure might otherwise be hard to reproduce.
+
+To use reverse debugging, set a breakpoint slightly before the
+location of interest and run your program to that point.  Enable
+process recording by clicking on the record button.  At this point, a
+new set of buttons appear.  These buttons allow program execution in
+the reverse direction.  Run your program over the code where the
+problem occurs, and then use the new set of buttons to retrace your
+steps, examine values, and analyze the problem.  When analysis is
+complete, turn off process recording by clicking on the record button
+again.
 
 @node Executing Lisp
 @section Executing Lisp Expressions
diff --git a/doc/emacs/emacs.texi b/doc/emacs/emacs.texi
index 4b9ea28dcc3..7037574245a 100644
--- a/doc/emacs/emacs.texi
+++ b/doc/emacs/emacs.texi
@@ -745,16 +745,14 @@ Running Debuggers Under Emacs
 
 GDB Graphical Interface
 
-* GDB-UI Layout::               Control the number of displayed buffers.
-* Source Buffers::              Use the mouse in the fringe/margin to
-                                control your program.
-* Breakpoints Buffer::          A breakpoint control panel.
-* Threads Buffer::              Displays your threads.
-* Stack Buffer::                Select a frame from the call stack.
-* Other GDB-UI Buffers::        Input/output, locals, registers,
-                                assembler, threads and memory buffers.
-* Watch Expressions::           Monitor variable values in the speedbar.
-* Multithreaded Debugging::     Debugging programs with several threads.
+* GDB-UI Layout::       Control the number of displayed buffers.
+* Source Buffers::      Use the mouse in the fringe/margin to
+                          control your program.
+* Breakpoints Buffer::  A breakpoint control panel.
+* Stack Buffer::        Select a frame from the call stack.
+* Other GDB-UI Buffers::Input/output, locals, registers,
+                          assembler, threads and memory buffers.
+* Watch Expressions::   Monitor variable values in the speedbar.
 
 Maintaining Large Programs
 
diff --git a/etc/NEWS b/etc/NEWS
index 6fda272c0d0..b687d397581 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -218,11 +218,10 @@ dired buffers automatically on revisiting.
 *** When `doc-view-continuous' is non-nil, scrolling a line
 on the page edge advances to the next/previous page.
 
-** gdb-mi
+** GDB-UI
 
-*** GDB User Interface migrated to GDB Machine Interface and now
-supports multithread non-stop debugging and debugging of several
-threads simultaneously.
+*** Toolbar functionality for reverse debugging. Display of STL collections as
+    watch expressions.  These features require GDB 7.0 or later.
 
 ** Grep
 
diff --git a/lisp/Makefile.in b/lisp/Makefile.in
index 387144c19d7..dfa3a98871e 100644
--- a/lisp/Makefile.in
+++ b/lisp/Makefile.in
@@ -1233,7 +1233,7 @@ ELCFILES = \
         $(lisp)/progmodes/f90.elc \
         $(lisp)/progmodes/flymake.elc \
         $(lisp)/progmodes/fortran.elc \
-        $(lisp)/progmodes/gdb-mi.elc \
+        $(lisp)/progmodes/gdb-ui.elc \
         $(lisp)/progmodes/glasses.elc \
         $(lisp)/progmodes/grep.elc \
         $(lisp)/progmodes/gud.elc \
diff --git a/lisp/progmodes/gdb-mi.el b/lisp/progmodes/gdb-mi.el
deleted file mode 100644
index 0f9532dcb3e..00000000000
--- a/lisp/progmodes/gdb-mi.el
+++ /dev/null
@@ -1,4192 +0,0 @@
-;;; gdb-mi.el --- User Interface for running GDB
-
-;; Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
-
-;; Author: Nick Roberts <nickrob@gnu.org>
-;; Maintainer: FSF
-;; Keywords: unix, tools
-
-;; This file is part of GNU Emacs.
-
-;; Homepage: http://www.emacswiki.org/emacs/GDB-MI
-
-;; GNU Emacs 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.
-
-;; GNU Emacs 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
-
-;;; Credits:
-
-;; This file was written by by Nick Roberts following the general design
-;; used in gdb-ui.el for Emacs 22.1 - 23.1.  It is currently being developed
-;; by Dmitry Dzhus <dima@sphinx.net.ru> as part of the Google Summer
-;; of Code 2009 Project "Emacs GDB/MI migration".
-
-;;; Commentary:
-
-;; This mode acts as a graphical user interface to GDB.  You can interact with
-;; GDB through the GUD buffer in the usual way, but there are also further
-;; buffers which control the execution and describe the state of your program.
-;; It separates the input/output of your program from that of GDB and displays
-;; expressions and their current values in their own buffers.  It also uses
-;; features of Emacs 21 such as the fringe/display margin for breakpoints, and
-;; the toolbar (see the GDB Graphical Interface section in the Emacs info
-;; manual).
-
-;; M-x gdb will start the debugger.
-
-;; This file uses GDB/MI as the primary interface to GDB.  It is still under
-;; development and is part of a process to migrate Emacs from annotations (as
-;; used in gdb-ui.el) to GDB/MI.  It runs gdb with GDB/MI (-interp=mi) and
-;; access CLI using "-interpreter-exec console cli-command".  This code works
-;; without gdb-ui.el and uses MI tokens instead of queues. Eventually MI
-;; should be asynchronous.
-
-;; This mode will PARTLY WORK WITH RECENT GDB RELEASES (status in modeline
-;; doesn't update properly when execution commands are issued from GUD buffer)
-;; and WORKS BEST when GDB runs asynchronously: maint set linux-async on.
-;;
-;; You need development version of GDB 7.0 for the thread buffer to work.
-
-;; This file replaces gdb-ui.el and is for development with GDB.  Use the
-;; release branch of Emacs 22 for the latest version of gdb-ui.el.
-
-;; Windows Platforms:
-
-;; If you are using Emacs and GDB on Windows you will need to flush the buffer
-;; explicitly in your program if you want timely display of I/O in Emacs.
-;; Alternatively you can make the output stream unbuffered, for example, by
-;; using a macro:
-
-;;           #ifdef UNBUFFERED
-;;           setvbuf (stdout, (char *) NULL, _IONBF, 0);
-;;           #endif
-
-;; and compiling with -DUNBUFFERED while debugging.
-
-;; If you are using Cygwin GDB and find that the source is not being displayed
-;; in Emacs when you step through it, possible solutions are to:
-
-;;   1) Use Cygwin X Windows and Cygwin Emacs.
-;;        (Since 22.1 Emacs builds under Cygwin.)
-;;   2) Use MinGW GDB instead.
-;;   3) Use cygwin-mount.el
-
-;;; Mac OSX:
-
-;; GDB in Emacs on Mac OSX works best with FSF GDB as Apple have made
-;; some changes to the version that they include as part of Mac OSX.
-;; This requires GDB version 7.0 or later (estimated release date Aug 2009)
-;; as earlier versions don not compile on Mac OSX.
-
-;;; Known Bugs:
-
-;; 1) Stack buffer doesn't parse MI output if you stop in a routine without
-;;    line information, e.g., a routine in libc (just a TODO item).
-
-;; TODO:
-;; 2) Watch windows to work with threads.
-;; 3) Use treebuffer.el instead of the speedbar for watch-expressions?
-;; 4) Mark breakpoint locations on scroll-bar of source buffer?
-
-;;; Code:
-
-(require 'gud)
-(require 'json)
-(require 'bindat)
-(eval-when-compile (require 'cl))
-
-(defvar tool-bar-map)
-(defvar speedbar-initial-expansion-list-name)
-(defvar speedbar-frame)
-
-(defvar gdb-memory-address "main")
-(defvar gdb-memory-last-address nil
-  "Last successfully accessed memory address.")
-(defvar gdb-memory-next-page nil
-  "Address of next memory page for program memory buffer.")
-(defvar gdb-memory-prev-page nil
-  "Address of previous memory page for program memory buffer.")
-
-(defvar gdb-thread-number nil
-  "Main current thread.
-
-Invalidation triggers use this variable to query GDB for
-information on the specified thread by wrapping GDB/MI commands
-in `gdb-current-context-command'.
-
-This variable may be updated implicitly by GDB via `gdb-stopped'
-or explicitly by `gdb-select-thread'.
-
-Only `gdb-setq-thread-number' should be used to change this
-value.")
-
-(defvar gdb-frame-number nil
-  "Selected frame level for main current thread.
-
-Updated according to the following rules:
-
-When a thread is selected or current thread stops, set to \"0\".
-
-When current thread goes running (and possibly exits eventually),
-set to nil.
-
-May be manually changed by user with `gdb-select-frame'.")
-
-(defvar gdb-frame-address nil "Identity of frame for watch expression.")
-
-;; Used to show overlay arrow in source buffer. All set in
-;; gdb-get-main-selected-frame. Disassembly buffer should not use
-;; these but rely on buffer-local thread information instead.
-(defvar gdb-selected-frame nil
-  "Name of selected function for main current thread.")
-(defvar gdb-selected-file nil
-  "Name of selected file for main current thread.")
-(defvar gdb-selected-line nil
-  "Number of selected line for main current thread.")
-
-(defvar gdb-threads-list nil
-  "Associative list of threads provided by \"-thread-info\" MI command.
-
-Keys are thread numbers (in strings) and values are structures as
-returned from -thread-info by `gdb-json-partial-output'. Updated in
-`gdb-thread-list-handler-custom'.")
-
-(defvar gdb-running-threads-count nil
-  "Number of currently running threads.
-
-Nil means that no information is available.
-
-Updated in `gdb-thread-list-handler-custom'.")
-
-(defvar gdb-stopped-threads-count nil
-  "Number of currently stopped threads.
-
-See also `gdb-running-threads-count'.")
-
-(defvar gdb-breakpoints-list nil
-  "Associative list of breakpoints provided by \"-break-list\" MI command.
-
-Keys are breakpoint numbers (in string) and values are structures
-as returned from \"-break-list\" by `gdb-json-partial-output'
-\(\"body\" field is used). Updated in
-`gdb-breakpoints-list-handler-custom'.")
-
-(defvar gdb-current-language nil)
-(defvar gdb-var-list nil
-  "List of variables in watch window.
-Each element has the form (VARNUM EXPRESSION NUMCHILD TYPE VALUE STATUS HAS_MORE FP)
-where STATUS is nil (`unchanged'), `changed' or `out-of-scope', FP the frame
-address for root variables.")
-(defvar gdb-main-file nil "Source file from which program execution begins.")
-
-;; Overlay arrow markers
-(defvar gdb-stack-position nil)
-(defvar gdb-thread-position nil)
-(defvar gdb-disassembly-position nil)
-
-(defvar gdb-location-alist nil
-  "Alist of breakpoint numbers and full filenames.  Only used for files that
-Emacs can't find.")
-(defvar gdb-active-process nil
-  "GUD tooltips display variable values when t, and macro definitions otherwise.")
-(defvar gdb-error "Non-nil when GDB is reporting an error.")
-(defvar gdb-macro-info nil
-  "Non-nil if GDB knows that the inferior includes preprocessor macro info.")
-(defvar gdb-register-names nil "List of register names.")
-(defvar gdb-changed-registers nil
-  "List of changed register numbers (strings).")
-(defvar gdb-buffer-fringe-width nil)
-(defvar gdb-last-command nil)
-(defvar gdb-prompt-name nil)
-(defvar gdb-token-number 0)
-(defvar gdb-handler-alist '())
-(defvar gdb-handler-number nil)
-(defvar gdb-source-file-list nil
-  "List of source files for the current executable.")
-(defvar gdb-first-done-or-error t)
-(defvar gdb-source-window nil)
-(defvar gdb-inferior-status nil)
-(defvar gdb-continuation nil)
-(defvar gdb-version nil)
-(defvar gdb-filter-output nil
-  "Message to be shown in GUD console.
-
-This variable is updated in `gdb-done-or-error' and returned by
-`gud-gdbmi-marker-filter'.")
-
-(defvar gdb-non-stop nil
-  "Indicates whether current GDB session is using non-stop mode.
-
-It is initialized to `gdb-non-stop-setting' at the beginning of
-every GDB session.")
-
-(defvar gdb-buffer-type nil
-  "One of the symbols bound in `gdb-buffer-rules'.")
-(make-variable-buffer-local 'gdb-buffer-type)
-
-(defvar gdb-output-sink 'nil
-  "The disposition of the output of the current gdb command.
-Possible values are these symbols:
-
-    `user' -- gdb output should be copied to the GUD buffer
-              for the user to see.
-
-    `emacs' -- output should be collected in the partial-output-buffer
-               for subsequent processing by a command.  This is the
-               disposition of output generated by commands that
-               gdb mode sends to gdb on its own behalf.")
-
-;; Pending triggers prevent congestion: Emacs won't send two similar
-;; consecutive requests.
-
-(defvar gdb-pending-triggers '()
-  "A list of trigger functions which have not yet been handled.
-
-Elements are either function names or pairs (buffer . function)")
-
-(defmacro gdb-add-pending (item)
-  `(push ,item gdb-pending-triggers))
-(defmacro gdb-pending-p (item)
-  `(member ,item gdb-pending-triggers))
-(defmacro gdb-delete-pending (item)
-  `(setq gdb-pending-triggers
-         (delete ,item gdb-pending-triggers)))
-
-(defmacro gdb-wait-for-pending (&rest body)
-  "Wait until `gdb-pending-triggers' is empty and evaluate FORM.
-
-This function checks `gdb-pending-triggers' value every
-`gdb-wait-for-pending' seconds."
-  (run-with-timer
-   0.5 nil
-   `(lambda ()
-      (if (not gdb-pending-triggers)
-          (progn ,@body)
-        (gdb-wait-for-pending ,@body)))))
-
-;; Publish-subscribe
-
-(defmacro gdb-add-subscriber (publisher subscriber)
-  "Register new PUBLISHER's SUBSCRIBER.
-
-SUBSCRIBER must be a pair, where cdr is a function of one
-argument (see `gdb-emit-signal')."
-  `(add-to-list ',publisher ,subscriber t))
-
-(defmacro gdb-delete-subscriber (publisher subscriber)
-  "Unregister SUBSCRIBER from PUBLISHER."
-  `(setq ,publisher (delete ,subscriber
-                            ,publisher)))
-
-(defun gdb-get-subscribers (publisher)
-  publisher)
-
-(defun gdb-emit-signal (publisher &optional signal)
-  "Call cdr for each subscriber of PUBLISHER with SIGNAL as argument."
-  (dolist (subscriber (gdb-get-subscribers publisher))
-    (funcall (cdr subscriber) signal)))
-
-(defvar gdb-buf-publisher '()
-  "Used to invalidate GDB buffers by emitting a signal in
-`gdb-update'.
-
-Must be a list of pairs with cars being buffers and cdr's being
-valid signal handlers.")
-
-(defgroup gdb nil
-  "GDB graphical interface"
-  :group 'tools
-  :link '(info-link "(emacs)GDB Graphical Interface")
-  :version "23.2")
-
-(defgroup gdb-non-stop nil
-  "GDB non-stop debugging settings"
-  :group 'gdb
-  :version "23.2")
-
-(defgroup gdb-buffers nil
-  "GDB buffers"
-  :group 'gdb
-  :version "23.2")
-
-(defcustom gdb-debug-log-max 128
-  "Maximum size of `gdb-debug-log'.  If nil, size is unlimited."
-  :group 'gdb
-  :type '(choice (integer :tag "Number of elements")
-                 (const   :tag "Unlimited" nil))
-  :version "22.1")
-
-(defcustom gdb-non-stop-setting t
-  "When in non-stop mode, stopped threads can be examined while
-other threads continue to execute.
-
-GDB session needs to be restarted for this setting to take
-effect."
-  :type 'boolean
-  :group 'gdb-non-stop
-  :version "23.2")
-
-;; TODO Some commands can't be called with --all (give a notice about
-;; it in setting doc)
-(defcustom gdb-gud-control-all-threads t
-  "When enabled, GUD execution commands affect all threads when
-in non-stop mode. Otherwise, only current thread is affected."
-  :type 'boolean
-  :group 'gdb-non-stop
-  :version "23.2")
-
-(defcustom gdb-switch-reasons t
-  "List of stop reasons which cause Emacs to switch to the thread
-which caused the stop. When t, switch to stopped thread no matter
-what the reason was. When nil, never switch to stopped thread
-automatically.
-
-This setting is used in non-stop mode only. In all-stop mode,
-Emacs always switches to the thread which caused the stop."
-  ;; exited, exited-normally and exited-signalled are not
-  ;; thread-specific stop reasons and therefore are not included in
-  ;; this list
-  :type '(choice
-          (const :tag "All reasons" t)
-          (set :tag "Selection of reasons..."
-               (const :tag "A breakpoint was reached." "breakpoint-hit")
-               (const :tag "A watchpoint was triggered." "watchpoint-trigger")
-               (const :tag "A read watchpoint was triggered." "read-watchpoint-trigger")
-               (const :tag "An access watchpoint was triggered." "access-watchpoint-trigger")
-               (const :tag "Function finished execution." "function-finished")
-               (const :tag "Location reached." "location-reached")
-               (const :tag "Watchpoint has gone out of scope" "watchpoint-scope")
-               (const :tag "End of stepping range reached." "end-stepping-range")
-               (const :tag "Signal received (like interruption)." "signal-received"))
-          (const :tag "None" nil))
-  :group 'gdb-non-stop
-  :version "23.2"
-  :link '(info-link "(gdb)GDB/MI Async Records"))
-
-(defcustom gdb-stopped-hooks nil
-  "This variable holds a list of functions to be called whenever
-GDB stops.
-
-Each function takes one argument, a parsed MI response, which
-contains fields of corresponding MI *stopped async record:
-
-    ((stopped-threads . \"all\")
-     (thread-id . \"1\")
-     (frame (line . \"38\")
-            (fullname . \"/home/sphinx/projects/gsoc/server.c\")
-            (file . \"server.c\")
-            (args ((value . \"0x804b038\")
-                   (name . \"arg\")))
-            (func . \"hello\")
-            (addr . \"0x0804869e\"))
-     (reason . \"end-stepping-range\"))
-
-Note that \"reason\" is only present in non-stop debugging mode.
-
-`bindat-get-field' may be used to access the fields of response.
-
-Each function is called after the new current thread was selected
-and GDB buffers were updated in `gdb-stopped'."
-  :type '(repeat function)
-  :group 'gdb
-  :version "23.2"
-  :link '(info-link "(gdb)GDB/MI Async Records"))
-
-(defcustom gdb-switch-when-another-stopped t
-  "When nil, Emacs won't switch to stopped thread if some other
-stopped thread is already selected."
-  :type 'boolean
-  :group 'gdb-non-stop
-  :version "23.2")
-
-(defcustom gdb-stack-buffer-locations t
-  "Show file information or library names in stack buffers."
-  :type 'boolean
-  :group 'gdb-buffers
-  :version "23.2")
-
-(defcustom gdb-stack-buffer-addresses nil
-  "Show frame addresses in stack buffers."
-  :type 'boolean
-  :group 'gdb-buffers
-  :version "23.2")
-
-(defcustom gdb-thread-buffer-verbose-names t
-  "Show long thread names in threads buffer."
-  :type 'boolean
-  :group 'gdb-buffers
-  :version "23.2")
-
-(defcustom gdb-thread-buffer-arguments t
-  "Show function arguments in threads buffer."
-  :type 'boolean
-  :group 'gdb-buffers
-  :version "23.2")
-
-(defcustom gdb-thread-buffer-locations t
-  "Show file information or library names in threads buffer."
-  :type 'boolean
-  :group 'gdb-buffers
-  :version "23.2")
-
-(defcustom gdb-thread-buffer-addresses nil
-  "Show addresses for thread frames in threads buffer."
-  :type 'boolean
-  :group 'gdb-buffers
-  :version "23.2")
-
-(defcustom gdb-show-threads-by-default nil
-  "Show threads list buffer instead of breakpoints list by
-default."
-  :type 'boolean
-  :group 'gdb-buffers
-  :version "23.2")
-
-(defvar gdb-debug-log nil
-  "List of commands sent to and replies received from GDB.
-Most recent commands are listed first.  This list stores only the last
-`gdb-debug-log-max' values.  This variable is used to debug GDB-MI.")
-
-;;;###autoload
-(defcustom gdb-enable-debug nil
-  "Non-nil means record the process input and output in `gdb-debug-log'."
-  :type 'boolean
-  :group 'gdb
-  :version "22.1")
-
-(defcustom gdb-cpp-define-alist-program "gcc -E -dM -"
-  "Shell command for generating a list of defined macros in a source file.
-This list is used to display the #define directive associated
-with an identifier as a tooltip.  It works in a debug session with
-GDB, when `gud-tooltip-mode' is t.
-
-Set `gdb-cpp-define-alist-flags' for any include paths or
-predefined macros."
-  :type 'string
-  :group 'gdb
-  :version "22.1")
-
-(defcustom gdb-cpp-define-alist-flags ""
-  "Preprocessor flags for `gdb-cpp-define-alist-program'."
-  :type 'string
-  :group 'gdb
-  :version "22.1")
-
- (defcustom gdb-create-source-file-list t
-   "Non-nil means create a list of files from which the executable was built.
- Set this to nil if the GUD buffer displays \"initializing...\" in the mode
- line for a long time when starting, possibly because your executable was
- built from a large number of files.  This allows quicker initialization
- but means that these files are not automatically enabled for debugging,
- e.g., you won't be able to click in the fringe to set a breakpoint until
- execution has already stopped there."
-   :type 'boolean
-   :group 'gdb
-   :version "23.1")
-
-(defcustom gdb-show-main nil
-  "Non-nil means display source file containing the main routine at startup.
-Also display the main routine in the disassembly buffer if present."
-  :type 'boolean
-  :group 'gdb
-  :version "22.1")
-
-(defun gdb-force-mode-line-update (status)
-  (let ((buffer gud-comint-buffer))
-    (if (and buffer (buffer-name buffer))
-        (with-current-buffer buffer
-          (setq mode-line-process
-                (format ":%s [%s]"
-                        (process-status (get-buffer-process buffer)) status))
-          ;; Force mode line redisplay soon.
-          (force-mode-line-update)))))
-
-(defun gdb-enable-debug (arg)
-  "Toggle logging of transaction between Emacs and Gdb.
-The log is stored in `gdb-debug-log' as an alist with elements
-whose cons is send, send-item or recv and whose cdr is the string
-being transferred.  This list may grow up to a size of
-`gdb-debug-log-max' after which the oldest element (at the end of
-the list) is deleted every time a new one is added (at the front)."
-  (interactive "P")
-  (setq gdb-enable-debug
-        (if (null arg)
-            (not gdb-enable-debug)
-          (> (prefix-numeric-value arg) 0)))
-  (message (format "Logging of transaction %sabled"
-                   (if gdb-enable-debug "en" "dis"))))
-
-;; These two are used for menu and toolbar
-(defun gdb-control-all-threads ()
-  "Switch to non-stop/A mode."
-  (interactive)
-  (setq gdb-gud-control-all-threads t)
-  ;; Actually forcing the tool-bar to update.
-  (force-mode-line-update)
-  (message "Now in non-stop/A mode."))
-
-(defun gdb-control-current-thread ()
-  "Switch to non-stop/T mode."
-  (interactive)
-  (setq gdb-gud-control-all-threads nil)
-  ;; Actually forcing the tool-bar to update.
-  (force-mode-line-update)
-  (message "Now in non-stop/T mode."))
-
-(defun gdb-find-watch-expression ()
-  (let* ((var (nth (- (line-number-at-pos (point)) 2) gdb-var-list))
-         (varnum (car var)) expr array)
-    (string-match "\\(var[0-9]+\\)\\.\\(.*\\)" varnum)
-    (let ((var1 (assoc (match-string 1 varnum) gdb-var-list)) var2 varnumlet
-          (component-list (split-string (match-string 2 varnum) "\\." t)))
-      (setq expr (nth 1 var1))
-      (setq varnumlet (car var1))
-      (dolist (component component-list)
-        (setq var2 (assoc varnumlet gdb-var-list))
-        (setq expr (concat expr
-                           (if (string-match ".*\\[[0-9]+\\]$" (nth 3 var2))
-                               (concat "[" component "]")
-                             (concat "." component))))
-        (setq varnumlet (concat varnumlet "." component)))
-      expr)))
-
-;; noall is used for commands which don't take --all, but only
-;; --thread.
-(defun gdb-gud-context-command (command &optional noall)
-  "When `gdb-non-stop' is t, add --thread option to COMMAND if
-`gdb-gud-control-all-threads' is nil and --all option otherwise.
-If NOALL is t, always add --thread option no matter what
-`gdb-gud-control-all-threads' value is.
-
-When `gdb-non-stop' is nil, return COMMAND unchanged."
-  (if gdb-non-stop
-      (if (and gdb-gud-control-all-threads
-               (not noall)
-               (string-equal gdb-version "7.0+"))
-          (concat command " --all ")
-        (gdb-current-context-command command))
-    command))
-
-(defmacro gdb-gud-context-call (cmd1 &optional cmd2 noall noarg)
-  "`gud-call' wrapper which adds --thread/--all options between
-CMD1 and CMD2. NOALL is the same as in `gdb-gud-context-command'.
-
-NOARG must be t when this macro is used outside `gud-def'"
-  `(gud-call
-    (concat (gdb-gud-context-command ,cmd1 ,noall) " " ,cmd2)
-    ,(when (not noarg) 'arg)))
-
-;;;###autoload
-(defun gdb (command-line)
-  "Run gdb on program FILE in buffer *gud-FILE*.
-The directory containing FILE becomes the initial working directory
-and source-file directory for your debugger.
-
-If `gdb-many-windows' is nil (the default value) then gdb just
-pops up the GUD buffer unless `gdb-show-main' is t.  In this case
-it starts with two windows: one displaying the GUD buffer and the
-other with the source file with the main routine of the inferior.
-
-If `gdb-many-windows' is t, regardless of the value of
-`gdb-show-main', the layout below will appear.  Keybindings are
-shown in some of the buffers.
-
-Watch expressions appear in the speedbar/slowbar.
-
-The following commands help control operation :
-
-`gdb-many-windows'    - Toggle the number of windows gdb uses.
-`gdb-restore-windows' - To restore the window layout.
-
-See Info node `(emacs)GDB Graphical Interface' for a more
-detailed description of this mode.
-
-
-+----------------------------------------------------------------------+
-|                               GDB Toolbar                            |
-+-----------------------------------+----------------------------------+
-| GUD buffer (I/O of GDB)           | Locals buffer                    |
-|                                   |                                  |
-|                                   |                                  |
-|                                   |                                  |
-+-----------------------------------+----------------------------------+
-| Source buffer                     | I/O buffer (of debugged program) |
-|                                   | (comint-mode)                    |
-|                                   |                                  |
-|                                   |                                  |
-|                                   |                                  |
-|                                   |                                  |
-|                                   |                                  |
-|                                   |                                  |
-+-----------------------------------+----------------------------------+
-| Stack buffer                      | Breakpoints buffer               |
-| RET      gdb-select-frame         | SPC    gdb-toggle-breakpoint     |
-|                                   | RET    gdb-goto-breakpoint       |
-|                                   | D      gdb-delete-breakpoint     |
-+-----------------------------------+----------------------------------+"
-  ;;
-  (interactive (list (gud-query-cmdline 'gdb)))
-
-  (when (and gud-comint-buffer
-           (buffer-name gud-comint-buffer)
-           (get-buffer-process gud-comint-buffer)
-           (with-current-buffer gud-comint-buffer (eq gud-minor-mode 'gdba)))
-        (gdb-restore-windows)
-        (error
-         "Multiple debugging requires restarting in text command mode"))
-  ;;
-  (gud-common-init command-line nil 'gud-gdbmi-marker-filter)
-  (set (make-local-variable 'gud-minor-mode) 'gdbmi)
-  (setq comint-input-sender 'gdb-send)
-
-  (gud-def gud-tbreak "tbreak %f:%l" "\C-t"
-           "Set temporary breakpoint at current line.")
-  (gud-def gud-jump
-           (progn (gud-call "tbreak %f:%l") (gud-call "jump %f:%l"))
-           "\C-j" "Set execution address to current line.")
-
-  (gud-def gud-up     "up %p"     "<" "Up N stack frames (numeric arg).")
-  (gud-def gud-down   "down %p"   ">" "Down N stack frames (numeric arg).")
-  (gud-def gud-print  "print %e"  "\C-p" "Evaluate C expression at point.")
-  (gud-def gud-pstar  "print* %e" nil
-           "Evaluate C dereferenced pointer expression at point.")
-
-  (gud-def gud-step   (gdb-gud-context-call "-exec-step" "%p" t)
-           "\C-s"
-           "Step one source line with display.")
-  (gud-def gud-stepi  (gdb-gud-context-call "-exec-step-instruction" "%p" t)
-           "\C-i"
-           "Step one instruction with display.")
-  (gud-def gud-next   (gdb-gud-context-call "-exec-next" "%p" t)
-           "\C-n"
-           "Step one line (skip functions).")
-  (gud-def gud-nexti  (gdb-gud-context-call "-exec-next-instruction" "%p" t)
-           nil
-           "Step one instruction (skip functions).")
-  (gud-def gud-cont   (gdb-gud-context-call "-exec-continue")
-           "\C-r"
-           "Continue with display.")
-  (gud-def gud-finish (gdb-gud-context-call "-exec-finish" nil t)
-           "\C-f"
-           "Finish executing current function.")
-  (gud-def gud-run    "-exec-run"
-           nil
-           "Run the program.")
-
-  (gud-def gud-break (if (not (string-match "Disassembly" mode-name))
-                         (gud-call "break %f:%l" arg)
-                       (save-excursion
-                         (beginning-of-line)
-                         (forward-char 2)
-                         (gud-call "break *%a" arg)))
-           "\C-b" "Set breakpoint at current line or address.")
-
-  (gud-def gud-remove (if (not (string-match "Disassembly" mode-name))
-                          (gud-call "clear %f:%l" arg)
-                        (save-excursion
-                          (beginning-of-line)
-                          (forward-char 2)
-                          (gud-call "clear *%a" arg)))
-           "\C-d" "Remove breakpoint at current line or address.")
-
-  ;; -exec-until doesn't support --all yet
-  (gud-def gud-until  (if (not (string-match "Disassembly" mode-name))
-                          (gud-call "-exec-until %f:%l" arg)
-                        (save-excursion
-                          (beginning-of-line)
-                          (forward-char 2)
-                          (gud-call "-exec-until *%a" arg)))
-           "\C-u" "Continue to current line or address.")
-  ;; TODO Why arg here?
-  (gud-def
-   gud-go (gud-call (if gdb-active-process
-                        (gdb-gud-context-command "-exec-continue")
-                      "-exec-run") arg)
-   nil "Start or continue execution.")
-
-  ;; For debugging Emacs only.
-  (gud-def gud-pp
-           (gud-call
-            (concat
-             "pp1 " (if (eq (buffer-local-value
-                             'major-mode (window-buffer)) 'speedbar-mode)
-                        (gdb-find-watch-expression) "%e")) arg)
-           nil   "Print the Emacs s-expression.")
-
-  (define-key gud-minor-mode-map [left-margin mouse-1]
-    'gdb-mouse-set-clear-breakpoint)
-  (define-key gud-minor-mode-map [left-fringe mouse-1]
-    'gdb-mouse-set-clear-breakpoint)
-   (define-key gud-minor-mode-map [left-margin C-mouse-1]
-    'gdb-mouse-toggle-breakpoint-margin)
-  (define-key gud-minor-mode-map [left-fringe C-mouse-1]
-    'gdb-mouse-toggle-breakpoint-fringe)
-
-  (define-key gud-minor-mode-map [left-margin drag-mouse-1]
-    'gdb-mouse-until)
-  (define-key gud-minor-mode-map [left-fringe drag-mouse-1]
-    'gdb-mouse-until)
-  (define-key gud-minor-mode-map [left-margin mouse-3]
-    'gdb-mouse-until)
-  (define-key gud-minor-mode-map [left-fringe mouse-3]
-    'gdb-mouse-until)
-
-  (define-key gud-minor-mode-map [left-margin C-drag-mouse-1]
-    'gdb-mouse-jump)
-  (define-key gud-minor-mode-map [left-fringe C-drag-mouse-1]
-    'gdb-mouse-jump)
-  (define-key gud-minor-mode-map [left-fringe C-mouse-3]
-    'gdb-mouse-jump)
-  (define-key gud-minor-mode-map [left-margin C-mouse-3]
-    'gdb-mouse-jump)
-
-  (local-set-key "\C-i" 'gud-gdb-complete-command)
-  (setq gdb-first-prompt t)
-  (setq gud-running nil)
-
-  (gdb-update)
-
-  (run-hooks 'gdb-mode-hook))
-
-(defun gdb-init-1 ()
-  ;; (re-)initialise
-  (setq gdb-selected-frame nil
-        gdb-frame-number nil
-        gdb-thread-number nil
-        gdb-var-list nil
-        gdb-pending-triggers nil
-        gdb-output-sink 'user
-        gdb-location-alist nil
-        gdb-source-file-list nil
-        gdb-last-command nil
-        gdb-token-number 0
-        gdb-handler-alist '()
-        gdb-handler-number nil
-        gdb-prompt-name nil
-        gdb-first-done-or-error t
-        gdb-buffer-fringe-width (car (window-fringes))
-        gdb-debug-log nil
-        gdb-source-window nil
-        gdb-inferior-status nil
-        gdb-continuation nil
-        gdb-buf-publisher '()
-        gdb-threads-list '()
-        gdb-breakpoints-list '()
-        gdb-register-names '()
-        gdb-non-stop gdb-non-stop-setting)
-  ;;
-  (setq gdb-buffer-type 'gdbmi)
-  ;;
-  (gdb-force-mode-line-update
-   (propertize "initializing..." 'face font-lock-variable-name-face))
-
-  (gdb-get-buffer-create 'gdb-inferior-io)
-  (gdb-clear-inferior-io)
-  (set-process-filter (get-process "gdb-inferior") 'gdb-inferior-filter)
-  (gdb-input
-   ;; Needs GDB 6.4 onwards
-   (list (concat "-inferior-tty-set "
-                 (process-tty-name (get-process "gdb-inferior")))
-         'ignore))
-  (if (eq window-system 'w32)
-      (gdb-input (list "-gdb-set new-console off" 'ignore)))
-  (gdb-input (list "-gdb-set height 0" 'ignore))
-
-  (when gdb-non-stop
-    (gdb-input (list "-gdb-set non-stop 1" 'gdb-non-stop-handler)))
-
-  ;; find source file and compilation directory here
-  (gdb-input
-   ; Needs GDB 6.2 onwards.
-   (list "-file-list-exec-source-files" 'gdb-get-source-file-list))
-  (if gdb-create-source-file-list
-      (gdb-input
-        ; Needs GDB 6.0 onwards.
-       (list "-file-list-exec-source-file" 'gdb-get-source-file)))
-  (gdb-input
-   (list "-gdb-show prompt" 'gdb-get-prompt)))
-
-(defun gdb-non-stop-handler ()
-  (goto-char (point-min))
-  (if (re-search-forward "No symbol" nil t)
-      (progn
-        (message "This version of GDB doesn't support non-stop mode.  Turning it off.")
-        (setq gdb-non-stop nil)
-        (setq gdb-version "pre-7.0"))
-    (setq gdb-version "7.0+")
-    (gdb-input (list "-gdb-set target-async 1" 'ignore))
-    (gdb-input (list "-enable-pretty-printing" 'ignore))))
-
-(defvar gdb-define-alist nil "Alist of #define directives for GUD tooltips.")
-
-(defun gdb-create-define-alist ()
-  "Create an alist of #define directives for GUD tooltips."
-  (let* ((file (buffer-file-name))
-         (output
-          (with-output-to-string
-            (with-current-buffer standard-output
-              (and file
-                   (file-exists-p file)
-                   ;; call-process doesn't work with remote file names.
-                   (not (file-remote-p default-directory))
-                   (call-process shell-file-name file
-                                 (list t nil) nil "-c"
-                                 (concat gdb-cpp-define-alist-program " "
-                                         gdb-cpp-define-alist-flags))))))
-        (define-list (split-string output "\n" t))
-        (name))
-    (setq gdb-define-alist nil)
-    (dolist (define define-list)
-      (setq name (nth 1 (split-string define "[( ]")))
-      (push (cons name define) gdb-define-alist))))
-
-(declare-function tooltip-show "tooltip" (text &optional use-echo-area))
-(defvar tooltip-use-echo-area)
-
-(defun gdb-tooltip-print (expr)
-   (with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
-     (goto-char (point-min))
-     (if (re-search-forward ".*value=\\(\".*\"\\)" nil t)
-         (tooltip-show
-          (concat expr " = " (read (match-string 1)))
-          (or gud-tooltip-echo-area tooltip-use-echo-area
-              (not (display-graphic-p)))))))
-
-;; If expr is a macro for a function don't print because of possible dangerous
-;; side-effects. Also printing a function within a tooltip generates an
-;; unexpected starting annotation (phase error).
-(defun gdb-tooltip-print-1 (expr)
-  (with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
-    (goto-char (point-min))
-    (if (search-forward "expands to: " nil t)
-        (unless (looking-at "\\S-+.*(.*).*")
-          (gdb-input
-           (list  (concat "-data-evaluate-expression " expr)
-                  `(lambda () (gdb-tooltip-print ,expr))))))))
-
-(defun gdb-init-buffer ()
-  (set (make-local-variable 'gud-minor-mode) 'gdbmi)
-  (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
-  (when gud-tooltip-mode
-    (make-local-variable 'gdb-define-alist)
-    (gdb-create-define-alist)
-    (add-hook 'after-save-hook 'gdb-create-define-alist nil t)))
-
-(defmacro gdb-if-arrow (arrow-position &rest body)
-  `(if ,arrow-position
-      (let ((buffer (marker-buffer ,arrow-position)) (line))
-        (if (equal buffer (window-buffer (posn-window end)))
-            (with-current-buffer buffer
-              (when (or (equal start end)
-                        (equal (posn-point start)
-                               (marker-position ,arrow-position)))
-                ,@body))))))
-
-(defun gdb-mouse-until (event)
-  "Continue running until a source line past the current line.
-The destination source line can be selected either by clicking
-with mouse-3 on the fringe/margin or dragging the arrow
-with mouse-1 (default bindings)."
-  (interactive "e")
-  (let ((start (event-start event))
-        (end (event-end event)))
-    (gdb-if-arrow gud-overlay-arrow-position
-                  (setq line (line-number-at-pos (posn-point end)))
-                  (gud-call (concat "until " (number-to-string line))))
-    (gdb-if-arrow gdb-disassembly-position
-                  (save-excursion
-                    (goto-char (point-min))
-                    (forward-line (1- (line-number-at-pos (posn-point end))))
-                    (forward-char 2)
-                    (gud-call (concat "until *%a"))))))
-
-(defun gdb-mouse-jump (event)
-  "Set execution address/line.
-The destination source line can be selected either by clicking with C-mouse-3
-on the fringe/margin or dragging the arrow with C-mouse-1 (default bindings).
-Unlike `gdb-mouse-until' the destination address can be before the current
-line, and no execution takes place."
-  (interactive "e")
-  (let ((start (event-start event))
-        (end (event-end event)))
-    (gdb-if-arrow gud-overlay-arrow-position
-                  (setq line (line-number-at-pos (posn-point end)))
-                  (progn
-                    (gud-call (concat "tbreak " (number-to-string line)))
-                    (gud-call (concat "jump " (number-to-string line)))))
-    (gdb-if-arrow gdb-disassembly-position
-                  (save-excursion
-                    (goto-char (point-min))
-                    (forward-line (1- (line-number-at-pos (posn-point end))))
-                    (forward-char 2)
-                    (progn
-                      (gud-call (concat "tbreak *%a"))
-                      (gud-call (concat "jump *%a")))))))
-
-(defcustom gdb-show-changed-values t
-  "If non-nil change the face of out of scope variables and changed values.
-Out of scope variables are suppressed with `shadow' face.
-Changed values are highlighted with the face `font-lock-warning-face'."
-  :type 'boolean
-  :group 'gdb
-  :version "22.1")
-
-(defcustom gdb-max-children 40
-  "Maximum number of children before expansion requires confirmation."
-  :type 'integer
-  :group 'gdb
-  :version "22.1")
-
-(defcustom gdb-delete-out-of-scope t
-  "If non-nil delete watch expressions automatically when they go out of scope."
-  :type 'boolean
-  :group 'gdb
-  :version "22.2")
-
-(defcustom gdb-speedbar-auto-raise nil
-  "If non-nil raise speedbar every time display of watch expressions is\
- updated."
-  :type 'boolean
-  :group 'gdb
-  :version "22.1")
-
-(defcustom gdb-use-colon-colon-notation nil
-  "If non-nil use FUN::VAR format to display variables in the speedbar."
-  :type 'boolean
-  :group 'gdb
-  :version "22.1")
-
-(defun gdb-speedbar-auto-raise (arg)
-  "Toggle automatic raising of the speedbar for watch expressions.
-With prefix argument ARG, automatically raise speedbar if ARG is
-positive, otherwise don't automatically raise it."
-  (interactive "P")
-  (setq gdb-speedbar-auto-raise
-        (if (null arg)
-            (not gdb-speedbar-auto-raise)
-          (> (prefix-numeric-value arg) 0)))
-  (message (format "Auto raising %sabled"
-                   (if gdb-speedbar-auto-raise "en" "dis"))))
-
-(define-key gud-minor-mode-map "\C-c\C-w" 'gud-watch)
-(define-key global-map (concat gud-key-prefix "\C-w") 'gud-watch)
-
-(declare-function tooltip-identifier-from-point "tooltip" (point))
-
-(defun gud-watch (&optional arg event)
-  "Watch expression at point.
-With arg, enter name of variable to be watched in the minibuffer."
-  (interactive (list current-prefix-arg last-input-event))
-  (let ((minor-mode (buffer-local-value 'gud-minor-mode gud-comint-buffer)))
-    (if (eq minor-mode 'gdbmi)
-        (progn
-          (if event (posn-set-point (event-end event)))
-          (require 'tooltip)
-          (save-selected-window
-            (let ((expr
-                   (if arg
-                       (completing-read "Name of variable: "
-                                        'gud-gdb-complete-command)
-                     (if (and transient-mark-mode mark-active)
-                         (buffer-substring (region-beginning) (region-end))
-                       (concat (if (eq major-mode 'gdb-registers-mode) "$")
-                               (tooltip-identifier-from-point (point)))))))
-              (set-text-properties 0 (length expr) nil expr)
-              (gdb-input
-               (list (concat"-var-create - * "  expr "")
-                     `(lambda () (gdb-var-create-handler ,expr)))))))
-      (message "gud-watch is a no-op in this mode."))))
-
-(defun gdb-var-create-handler (expr)
-  (let* ((result (gdb-json-partial-output)))
-    (if (not (bindat-get-field result 'msg))
-        (let ((var
-               (list (bindat-get-field result 'name)
-                     (if (and (string-equal gdb-current-language "c")
-                              gdb-use-colon-colon-notation gdb-selected-frame)
-                         (setq expr (concat gdb-selected-frame "::" expr))
-                       expr)
-                     (bindat-get-field result 'numchild)
-                     (bindat-get-field result 'type)
-                     (bindat-get-field result 'value)
-                     nil
-                     (bindat-get-field result 'has_more)
-                      gdb-frame-address)))
-          (push var gdb-var-list)
-          (speedbar 1)
-          (unless (string-equal
-                   speedbar-initial-expansion-list-name "GUD")
-            (speedbar-change-initial-expansion-list "GUD")))
-      (message-box "No symbol \"%s\" in current context." expr))))
-
-(defun gdb-speedbar-update ()
-  (when (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame)
-             (not (gdb-pending-p 'gdb-speedbar-timer)))
-    ;; Dummy command to update speedbar even when idle.
-    (gdb-input (list "-environment-pwd" 'gdb-speedbar-timer-fn))
-    ;; Keep gdb-pending-triggers non-nil till end.
-    (gdb-add-pending 'gdb-speedbar-timer)))
-
-(defun gdb-speedbar-timer-fn ()
-  (if gdb-speedbar-auto-raise
-      (raise-frame speedbar-frame))
-  (gdb-delete-pending 'gdb-speedbar-timer)
-  (speedbar-timer-fn))
-
-(defun gdb-var-evaluate-expression-handler (varnum changed)
-  (goto-char (point-min))
-  (re-search-forward ".*value=\\(\".*\"\\)" nil t)
-  (let ((var (assoc varnum gdb-var-list)))
-    (when var
-      (if changed (setcar (nthcdr 5 var) 'changed))
-      (setcar (nthcdr 4 var) (read (match-string 1)))))
-  (gdb-speedbar-update))
-
-; Uses "-var-list-children --all-values".  Needs GDB 6.1 onwards.
-(defun gdb-var-list-children (varnum)
-  (gdb-input
-   (list (concat "-var-update " varnum) 'ignore))
-  (gdb-input
-   (list (concat "-var-list-children --all-values "
-                varnum)
-             `(lambda () (gdb-var-list-children-handler ,varnum)))))
-
-(defun gdb-var-list-children-handler (varnum)
-  (let* ((var-list nil)
-         (output (bindat-get-field (gdb-json-partial-output "child")))
-         (children (bindat-get-field output 'children)))
-   (catch 'child-already-watched
-      (dolist (var gdb-var-list)
-        (if (string-equal varnum (car var))
-            (progn
-              ;; With dynamic varobjs numchild may have increased.
-              (setcar (nthcdr 2 var) (bindat-get-field output 'numchild))
-              (push var var-list)
-              (dolist (child children)
-                (let ((varchild (list (bindat-get-field child 'name)
-                                      (bindat-get-field child 'exp)
-                                      (bindat-get-field child 'numchild)
-                                      (bindat-get-field child 'type)
-                                      (bindat-get-field child 'value)
-                                      nil
-                                      (bindat-get-field child 'has_more))))
-                  (if (assoc (car varchild) gdb-var-list)
-                      (throw 'child-already-watched nil))
-                  (push varchild var-list))))
-          (push var var-list)))
-      (setq gdb-var-list (nreverse var-list))))
-  (gdb-speedbar-update))
-
-(defun gdb-var-set-format (format)
-  "Set the output format for a variable displayed in the speedbar."
-  (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
-         (varnum (car var)))
-    (gdb-input
-     (list (concat "-var-set-format " varnum " " format) 'ignore))
-    (gdb-var-update)))
-
-(defun gdb-var-delete-1 (var varnum)
-  (gdb-input
-   (list (concat "-var-delete " varnum) 'ignore))
-  (setq gdb-var-list (delq var gdb-var-list))
-  (dolist (varchild gdb-var-list)
-    (if (string-match (concat (car var) "\\.") (car varchild))
-        (setq gdb-var-list (delq varchild gdb-var-list)))))
-
-(defun gdb-var-delete ()
-  "Delete watch expression at point from the speedbar."
-  (interactive)
-  (let ((text (speedbar-line-text)))
-    (string-match "\\(\\S-+\\)" text)
-       (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
-              (varnum (car var)))
-         (if (string-match "\\." (car var))
-             (message-box "Can only delete a root expression")
-           (gdb-var-delete-1 var varnum)))))
-
-(defun gdb-var-delete-children (varnum)
-  "Delete children of variable object at point from the speedbar."
-  (gdb-input
-   (list (concat "-var-delete -c " varnum) 'ignore)))
-
-(defun gdb-edit-value (text token indent)
-  "Assign a value to a variable displayed in the speedbar."
-  (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
-         (varnum (car var)) (value))
-    (setq value (read-string "New value: "))
-    (gdb-input
-     (list (concat "-var-assign " varnum " " value)
-           `(lambda () (gdb-edit-value-handler ,value))))))
-
-(defconst gdb-error-regexp "\\^error,msg=\\(\".+\"\\)")
-
-(defun gdb-edit-value-handler (value)
-  (goto-char (point-min))
-  (if (re-search-forward gdb-error-regexp nil t)
-      (message-box "Invalid number or expression (%s)" value)))
-
-; Uses "-var-update --all-values".  Needs GDB 6.4 onwards.
-(defun gdb-var-update ()
-  (if (not (gdb-pending-p 'gdb-var-update))
-      (gdb-input
-       (list "-var-update --all-values *" 'gdb-var-update-handler)))
-  (gdb-add-pending 'gdb-var-update))
-
-(defun gdb-var-update-handler ()
-  (let ((changelist (bindat-get-field (gdb-json-partial-output) 'changelist)))
-    (dolist (var gdb-var-list)
-      (setcar (nthcdr 5 var) nil))
-    (let ((temp-var-list gdb-var-list))
-      (dolist (change changelist)
-        (let* ((varnum (bindat-get-field change 'name))
-               (var (assoc varnum gdb-var-list))
-               (new-num (bindat-get-field change 'new_num_children)))
-          (when var
-            (let ((scope (bindat-get-field change 'in_scope))
-                  (has-more (bindat-get-field change 'has_more)))
-              (cond ((string-equal scope "false")
-                     (if gdb-delete-out-of-scope
-                         (gdb-var-delete-1 var varnum)
-                       (setcar (nthcdr 5 var) 'out-of-scope)))
-                    ((string-equal scope "true")
-                     (setcar (nthcdr 6 var) has-more)
-                     (when (and (or (not has-more)
-                                    (string-equal has-more "0"))
-                                (not new-num)
-                                (string-equal (nth 2 var) "0"))
-                       (setcar (nthcdr 4 var)
-                               (bindat-get-field change 'value))
-                       (setcar (nthcdr 5 var) 'changed)))
-                    ((string-equal scope "invalid")
-                     (gdb-var-delete-1 var varnum)))))
-          (let ((var-list nil) var1
-                (children (bindat-get-field change 'new_children)))
-            (if new-num
-                (progn
-                  (setq var1 (pop temp-var-list))
-                  (while var1
-                    (if (string-equal varnum (car var1))
-                        (let ((new (string-to-number new-num))
-                              (previous (string-to-number (nth 2 var1))))
-                          (setcar (nthcdr 2 var1) new-num)
-                          (push var1 var-list)
-                          (cond ((> new previous)
-                                 ;; Add new children to list.
-                                 (dotimes (dummy previous)
-                                   (push (pop temp-var-list) var-list))
-                                 (dolist (child children)
-                                   (let ((varchild
-                                          (list (bindat-get-field child 'name)
-                                                (bindat-get-field child 'exp)
-                                                (bindat-get-field child 'numchild)
-                                                (bindat-get-field child 'type)
-                                                (bindat-get-field child 'value)
-                                                'changed
-                                                (bindat-get-field child 'has_more))))
-                                     (push varchild var-list))))
-                                ;; Remove deleted children from list.
-                                ((< new previous)
-                                 (dotimes (dummy new)
-                                     (push (pop temp-var-list) var-list))
-                                 (dotimes (dummy (- previous new))
-                                     (pop temp-var-list)))))
-                      (push var1 var-list))
-                    (setq var1 (pop temp-var-list)))
-                  (setq gdb-var-list (nreverse var-list)))))))))
-  (setq gdb-pending-triggers
-        (delq 'gdb-var-update gdb-pending-triggers))
-  (gdb-speedbar-update))
-
-(defun gdb-speedbar-expand-node (text token indent)
-  "Expand the node the user clicked on.
-TEXT is the text of the button we clicked on, a + or - item.
-TOKEN is data related to this node.
-INDENT is the current indentation depth."
-  (cond ((string-match "+" text)        ;expand this node
-         (let* ((var (assoc token gdb-var-list))
-                (expr (nth 1 var)) (children (nth 2 var)))
-           (if (or (<= (string-to-number children) gdb-max-children)
-                   (y-or-n-p
-                    (format "%s has %s children. Continue? " expr children)))
-               (gdb-var-list-children token))))
-        ((string-match "-" text)        ;contract this node
-         (dolist (var gdb-var-list)
-           (if (string-match (concat token "\\.") (car var))
-               (setq gdb-var-list (delq var gdb-var-list))))
-         (gdb-var-delete-children token)
-         (speedbar-change-expand-button-char ?+)
-         (speedbar-delete-subblock indent))
-        (t (error "Ooops...  not sure what to do")))
-  (speedbar-center-buffer-smartly))
-
-(defun gdb-get-target-string ()
-  (with-current-buffer gud-comint-buffer
-    gud-target-name))
-
-
-;;
-;; gdb buffers.
-;;
-;; Each buffer has a TYPE -- a symbol that identifies the function
-;; of that particular buffer.
-;;
-;; The usual gdb interaction buffer is given the type `gdbmi' and
-;; is constructed specially.
-;;
-;; Others are constructed by gdb-get-buffer-create and
-;; named according to the rules set forth in the gdb-buffer-rules
-
-(defvar gdb-buffer-rules '())
-
-(defun gdb-rules-name-maker (rules-entry)
-  (cadr rules-entry))
-(defun gdb-rules-buffer-mode (rules-entry)
-  (nth 2 rules-entry))
-(defun gdb-rules-update-trigger (rules-entry)
-  (nth 3 rules-entry))
-
-(defun gdb-update-buffer-name ()
-  "Rename current buffer according to name-maker associated with
-it in `gdb-buffer-rules'."
-  (let ((f (gdb-rules-name-maker (assoc gdb-buffer-type
-                                        gdb-buffer-rules))))
-    (when f (rename-buffer (funcall f)))))
-
-(defun gdb-current-buffer-rules ()
-  "Get `gdb-buffer-rules' entry for current buffer type."
-  (assoc gdb-buffer-type gdb-buffer-rules))
-
-(defun gdb-current-buffer-thread ()
-  "Get thread object of current buffer from `gdb-threads-list'.
-
-When current buffer is not bound to any thread, return main
-thread."
-  (cdr (assoc gdb-thread-number gdb-threads-list)))
-
-(defun gdb-current-buffer-frame ()
-  "Get current stack frame object for thread of current buffer."
-  (bindat-get-field (gdb-current-buffer-thread) 'frame))
-
-(defun gdb-buffer-type (buffer)
-  "Get value of `gdb-buffer-type' for BUFFER."
-  (with-current-buffer buffer
-    gdb-buffer-type))
-
-(defun gdb-buffer-shows-main-thread-p ()
-  "Return t if current GDB buffer shows main selected thread and
-is not bound to it."
-  (current-buffer)
-  (not (local-variable-p 'gdb-thread-number)))
-
-(defun gdb-get-buffer (buffer-type &optional thread)
-  "Get a specific GDB buffer.
-
-In that buffer, `gdb-buffer-type' must be equal to BUFFER-TYPE
-and `gdb-thread-number' (if provided) must be equal to THREAD."
-  (catch 'found
-    (dolist (buffer (buffer-list) nil)
-      (with-current-buffer buffer
-        (when (and (eq gdb-buffer-type buffer-type)
-                   (or (not thread)
-                       (equal gdb-thread-number thread)))
-          (throw 'found buffer))))))
-
-(defun gdb-get-buffer-create (buffer-type &optional thread)
-  "Create a new GDB buffer of the type specified by BUFFER-TYPE.
-The buffer-type should be one of the cars in `gdb-buffer-rules'.
-
-If THREAD is non-nil, it is assigned to `gdb-thread-number'
-buffer-local variable of the new buffer.
-
-Buffer mode and name are selected according to buffer type.
-
-If buffer has trigger associated with it in `gdb-buffer-rules',
-this trigger is subscribed to `gdb-buf-publisher' and called with
-'update argument."
-  (or (gdb-get-buffer buffer-type thread)
-      (let ((rules (assoc buffer-type gdb-buffer-rules))
-            (new (generate-new-buffer "limbo")))
-        (with-current-buffer new
-          (let ((mode (gdb-rules-buffer-mode rules))
-                (trigger (gdb-rules-update-trigger rules)))
-            (when mode (funcall mode))
-            (setq gdb-buffer-type buffer-type)
-            (when thread
-              (set (make-local-variable 'gdb-thread-number) thread))
-            (set (make-local-variable 'gud-minor-mode)
-                 (buffer-local-value 'gud-minor-mode gud-comint-buffer))
-            (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
-            (rename-buffer (funcall (gdb-rules-name-maker rules)))
-            (when trigger
-              (gdb-add-subscriber gdb-buf-publisher
-                                  (cons (current-buffer)
-                                        (gdb-bind-function-to-buffer trigger (current-buffer))))
-              (funcall trigger 'start))
-            (current-buffer))))))
-
-(defun gdb-bind-function-to-buffer (expr buffer)
-  "Return a function which will evaluate EXPR in BUFFER."
-  `(lambda (&rest args)
-     (with-current-buffer ,buffer
-       (apply ',expr args))))
-
-;; Used to define all gdb-frame-*-buffer functions except
-;; `gdb-frame-io-buffer'
-(defmacro def-gdb-frame-for-buffer (name buffer &optional doc)
-  "Define a function NAME which shows gdb BUFFER in a separate frame.
-
-DOC is an optional documentation string."
-  `(defun ,name (&optional thread)
-     ,(when doc doc)
-     (interactive)
-     (let ((special-display-regexps (append special-display-regexps '(".*")))
-           (special-display-frame-alist gdb-frame-parameters))
-       (display-buffer (gdb-get-buffer-create ,buffer thread)))))
-
-(defmacro def-gdb-display-buffer (name buffer &optional doc)
-  "Define a function NAME which shows gdb BUFFER.
-
-DOC is an optional documentation string."
-  `(defun ,name (&optional thread)
-     ,(when doc doc)
-     (interactive)
-     (gdb-display-buffer
-      (gdb-get-buffer-create ,buffer thread) t)))
-
-;; Used to display windows with thread-bound buffers
-(defmacro def-gdb-preempt-display-buffer (name buffer &optional doc
-                                               split-horizontal)
-  `(defun ,name (&optional thread)
-     ,(when doc doc)
-     (message thread)
-     (gdb-preempt-existing-or-display-buffer
-      (gdb-get-buffer-create ,buffer thread)
-      ,split-horizontal)))
-
-;; This assoc maps buffer type symbols to rules.  Each rule is a list of
-;; at least one and possible more functions.  The functions have these
-;; roles in defining a buffer type:
-;;
-;;     NAME - Return a name for this  buffer type.
-;;
-;; The remaining function(s) are optional:
-;;
-;;     MODE - called in a new buffer with no arguments, should establish
-;;            the proper mode for the buffer.
-;;
-
-(defun gdb-set-buffer-rules (buffer-type &rest rules)
-  (let ((binding (assoc buffer-type gdb-buffer-rules)))
-    (if binding
-        (setcdr binding rules)
-      (push (cons buffer-type rules)
-            gdb-buffer-rules))))
-
-(defun gdb-parent-mode ()
-  "Generic mode to derive all other GDB buffer modes from."
-  (kill-all-local-variables)
-  (setq buffer-read-only t)
-  (buffer-disable-undo)
-  ;; Delete buffer from gdb-buf-publisher when it's killed
-  ;; (if it has an associated update trigger)
-  (add-hook
-   'kill-buffer-hook
-   (function
-    (lambda ()
-      (let ((trigger (gdb-rules-update-trigger
-                      (gdb-current-buffer-rules))))
-        (when trigger
-          (gdb-delete-subscriber
-           gdb-buf-publisher
-           ;; This should match gdb-add-subscriber done in
-           ;; gdb-get-buffer-create
-           (cons (current-buffer)
-                 (gdb-bind-function-to-buffer trigger (current-buffer))))))))
-   nil t))
-
-;; Partial-output buffer : This accumulates output from a command executed on
-;; behalf of emacs (rather than the user).
-;;
-(gdb-set-buffer-rules 'gdb-partial-output-buffer
-                      'gdb-partial-output-name)
-
-(defun gdb-partial-output-name ()
-  (concat " *partial-output-"
-          (gdb-get-target-string)
-          "*"))
-
-
-(gdb-set-buffer-rules 'gdb-inferior-io
-                      'gdb-inferior-io-name
-                      'gdb-inferior-io-mode)
-
-(defun gdb-inferior-io-name ()
-  (concat "*input/output of "
-          (gdb-get-target-string)
-          "*"))
-
-(defun gdb-display-io-buffer ()
-  "Display IO of debugged program in a separate window."
-  (interactive)
-  (gdb-display-buffer
-   (gdb-get-buffer-create 'gdb-inferior-io) t))
-
-(defconst gdb-frame-parameters
-  '((height . 14) (width . 80)
-    (unsplittable . t)
-    (tool-bar-lines . nil)
-    (menu-bar-lines . nil)
-    (minibuffer . nil)))
-
-(defun gdb-frame-io-buffer ()
-  "Display IO of debugged program in a new frame."
-  (interactive)
-  (let ((special-display-regexps (append special-display-regexps '(".*")))
-        (special-display-frame-alist gdb-frame-parameters))
-    (display-buffer (gdb-get-buffer-create 'gdb-inferior-io))))
-
-(defvar gdb-inferior-io-mode-map
-  (let ((map (make-sparse-keymap)))
-    (define-key map "\C-c\C-c" 'gdb-io-interrupt)
-    (define-key map "\C-c\C-z" 'gdb-io-stop)
-    (define-key map "\C-c\C-\\" 'gdb-io-quit)
-    (define-key map "\C-c\C-d" 'gdb-io-eof)
-    (define-key map "\C-d" 'gdb-io-eof)
-    map))
-
-;; We want to use comint because it has various nifty and familiar features.
-(define-derived-mode gdb-inferior-io-mode comint-mode "Inferior I/O"
-  "Major mode for gdb inferior-io.
-
-The following commands are available:
-\\{gdb-inferior-io-mode-map}"
-
-  :syntax-table nil :abbrev-table nil
-
-(make-comint-in-buffer "gdb-inferior" (current-buffer)  nil))
-
-(defun gdb-inferior-filter (proc string)
-  (unless (string-equal string "")
-    (gdb-display-buffer (gdb-get-buffer-create 'gdb-inferior-io) t))
-  (with-current-buffer (gdb-get-buffer-create 'gdb-inferior-io)
-    (comint-output-filter proc string)))
-
-(defun gdb-io-interrupt ()
-  "Interrupt the program being debugged."
-  (interactive)
-  (interrupt-process
-   (get-buffer-process gud-comint-buffer) comint-ptyp))
-
-(defun gdb-io-quit ()
-  "Send quit signal to the program being debugged."
-  (interactive)
-  (quit-process
-   (get-buffer-process gud-comint-buffer) comint-ptyp))
-
-(defun gdb-io-stop ()
-  "Stop the program being debugged."
-  (interactive)
-  (stop-process
-   (get-buffer-process gud-comint-buffer) comint-ptyp))
-
-(defun gdb-io-eof ()
-  "Send end-of-file to the program being debugged."
-  (interactive)
-  (process-send-eof
-   (get-buffer-process gud-comint-buffer)))
-
-(defun gdb-clear-inferior-io ()
-  (with-current-buffer (gdb-get-buffer-create 'gdb-inferior-io)
-    (erase-buffer)))
-
-
-(defconst breakpoint-xpm-data
-  "/* XPM */
-static char *magick[] = {
-/* columns rows colors chars-per-pixel */
-\"10 10 2 1\",
-\"  c red\",
-\"+ c None\",
-/* pixels */
-\"+++    +++\",
-\"++      ++\",
-\"+        +\",
-\"          \",
-\"          \",
-\"          \",
-\"          \",
-\"+        +\",
-\"++      ++\",
-\"+++    +++\",
-};"
-  "XPM data used for breakpoint icon.")
-
-(defconst breakpoint-enabled-pbm-data
-  "P1
-10 10\",
-0 0 0 0 1 1 1 1 0 0 0 0
-0 0 0 1 1 1 1 1 1 0 0 0
-0 0 1 1 1 1 1 1 1 1 0 0
-0 1 1 1 1 1 1 1 1 1 1 0
-0 1 1 1 1 1 1 1 1 1 1 0
-0 1 1 1 1 1 1 1 1 1 1 0
-0 1 1 1 1 1 1 1 1 1 1 0
-0 0 1 1 1 1 1 1 1 1 0 0
-0 0 0 1 1 1 1 1 1 0 0 0
-0 0 0 0 1 1 1 1 0 0 0 0"
-  "PBM data used for enabled breakpoint icon.")
-
-(defconst breakpoint-disabled-pbm-data
-  "P1
-10 10\",
-0 0 1 0 1 0 1 0 0 0
-0 1 0 1 0 1 0 1 0 0
-1 0 1 0 1 0 1 0 1 0
-0 1 0 1 0 1 0 1 0 1
-1 0 1 0 1 0 1 0 1 0
-0 1 0 1 0 1 0 1 0 1
-1 0 1 0 1 0 1 0 1 0
-0 1 0 1 0 1 0 1 0 1
-0 0 1 0 1 0 1 0 1 0
-0 0 0 1 0 1 0 1 0 0"
-  "PBM data used for disabled breakpoint icon.")
-
-(defvar breakpoint-enabled-icon nil
-  "Icon for enabled breakpoint in display margin.")
-
-(defvar breakpoint-disabled-icon nil
-  "Icon for disabled breakpoint in display margin.")
-
-(declare-function define-fringe-bitmap "fringe.c"
-                  (bitmap bits &optional height width align))
-
-(and (display-images-p)
-     ;; Bitmap for breakpoint in fringe
-     (define-fringe-bitmap 'breakpoint
-       "\x3c\x7e\xff\xff\xff\xff\x7e\x3c")
-     ;; Bitmap for gud-overlay-arrow in fringe
-     (define-fringe-bitmap 'hollow-right-triangle
-       "\xe0\x90\x88\x84\x84\x88\x90\xe0"))
-
-(defface breakpoint-enabled
-  '((t
-     :foreground "red1"
-     :weight bold))
-  "Face for enabled breakpoint icon in fringe."
-  :group 'gdb)
-
-(defface breakpoint-disabled
-  '((((class color) (min-colors 88)) :foreground "grey70")
-    ;; Ensure that on low-color displays that we end up something visible.
-    (((class color) (min-colors 8) (background light))
-     :foreground "black")
-    (((class color) (min-colors 8) (background dark))
-     :foreground "white")
-    (((type tty) (class mono))
-     :inverse-video t)
-    (t :background "gray"))
-  "Face for disabled breakpoint icon in fringe."
-  :group 'gdb)
-
-
-(defun gdb-send (proc string)
-  "A comint send filter for gdb."
-  (with-current-buffer gud-comint-buffer
-    (let ((inhibit-read-only t))
-      (remove-text-properties (point-min) (point-max) '(face))))
-  ;; mimic <RET> key to repeat previous command in GDB
-  (if (not (string= "" string))
-      (setq gdb-last-command string)
-    (if gdb-last-command (setq string gdb-last-command)))
-  (if gdb-enable-debug
-      (push (cons 'mi-send (concat string "\n")) gdb-debug-log))
-  (if (string-match "^-" string)
-      ;; MI command
-      (progn
-        (setq gdb-first-done-or-error t)
-        (process-send-string proc (concat string "\n")))
-    ;; CLI command
-    (if (string-match "\\\\$" string)
-        (setq gdb-continuation (concat gdb-continuation string "\n"))
-      (setq gdb-first-done-or-error t)
-      (process-send-string proc (concat "-interpreter-exec console \""
-                                        gdb-continuation string "\"\n"))
-      (setq gdb-continuation nil))))
-
-(defun gdb-input (item)
-  (if gdb-enable-debug (push (cons 'send-item item) gdb-debug-log))
-  (setq gdb-token-number (1+ gdb-token-number))
-  (setcar item (concat (number-to-string gdb-token-number) (car item)))
-  (push (cons gdb-token-number (car (cdr item))) gdb-handler-alist)
-  (process-send-string (get-buffer-process gud-comint-buffer)
-                       (concat (car item) "\n")))
-
-;; NOFRAME is used for gud execution control commands
-(defun gdb-current-context-command (command)
-  "Add --thread to gdb COMMAND when needed."
-  (if (and gdb-thread-number
-           (string-equal gdb-version "7.0+"))
-      (concat command " --thread " gdb-thread-number)
-    command))
-
-(defun gdb-current-context-buffer-name (name)
-  "Add thread information and asterisks to string NAME.
-
-If `gdb-thread-number' is nil, just wrap NAME in asterisks."
-  (concat "*" name
-          (if (local-variable-p 'gdb-thread-number)
-              (format " (bound to thread %s)" gdb-thread-number)
-            "")
-          "*"))
-
-(defun gdb-current-context-mode-name (mode)
-  "Add thread information to MODE which is to be used as
-`mode-name'."
-  (concat mode
-          (if gdb-thread-number
-              (format " [thread %s]" gdb-thread-number)
-            "")))
-
-
-(defcustom gud-gdb-command-name "gdb -i=mi"
-  "Default command to execute an executable under the GDB debugger."
-  :type 'string
-  :group 'gdb)
-
-(defun gdb-resync()
-  (setq gud-running nil)
-  (setq gdb-output-sink 'user)
-  (setq gdb-pending-triggers nil))
-
-(defun gdb-update ()
-  "Update buffers showing status of debug session."
-  (when gdb-first-prompt
-    (gdb-force-mode-line-update
-     (propertize "initializing..." 'face font-lock-variable-name-face))
-    (gdb-init-1)
-    (setq gdb-first-prompt nil))
-
-  (gdb-get-main-selected-frame)
-  ;; We may need to update gdb-threads-list so we can use
-  (gdb-get-buffer-create 'gdb-threads-buffer)
-  ;; gdb-break-list is maintained in breakpoints handler
-  (gdb-get-buffer-create 'gdb-breakpoints-buffer)
-
-  (gdb-emit-signal gdb-buf-publisher 'update)
-
-  (gdb-get-changed-registers)
-
-  (when (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame))
-    (dolist (var gdb-var-list)
-      (setcar (nthcdr 5 var) nil))
-    (gdb-var-update)))
-
-;; gdb-setq-thread-number and gdb-update-gud-running are decoupled
-;; because we may need to update current gud-running value without
-;; changing current thread (see gdb-running)
-(defun gdb-setq-thread-number (number)
-  "Only this function must be used to change `gdb-thread-number'
-value to NUMBER, because `gud-running' and `gdb-frame-number'
-need to be updated appropriately when current thread changes."
-  ;; GDB 6.8 and earlier always output thread-id="0" when stopping.
-  (unless (string-equal number "0") (setq gdb-thread-number number))
-  (setq gdb-frame-number "0")
-  (gdb-update-gud-running))
-
-(defun gdb-update-gud-running ()
-  "Set `gud-running' according to the state of current thread.
-
-`gdb-frame-number' is set to 0 if current thread is now stopped.
-
-Note that when `gdb-gud-control-all-threads' is t, `gud-running'
-cannot be reliably used to determine whether or not execution
-control buttons should be shown in menu or toolbar. Use
-`gdb-running-threads-count' and `gdb-stopped-threads-count'
-instead.
-
-For all-stop mode, thread information is unavailable while target
-is running."
-  (let ((old-value gud-running))
-    (setq gud-running
-          (string= (bindat-get-field (gdb-current-buffer-thread) 'state)
-                   "running"))
-    ;; Set frame number to "0" when _current_ threads stops
-    (when (and (gdb-current-buffer-thread)
-               (not (eq gud-running old-value)))
-      (setq gdb-frame-number "0"))))
-
-(defun gdb-show-run-p ()
-  "Return t if \"Run/continue\" should be shown on the toolbar."
-  (or (not gdb-active-process)
-      (and (or
-            (not gdb-gud-control-all-threads)
-            (not gdb-non-stop))
-           (not gud-running))
-      (and gdb-gud-control-all-threads
-           (> gdb-stopped-threads-count 0))))
-
-(defun gdb-show-stop-p ()
-  "Return t if \"Stop\" should be shown on the toolbar."
-  (or (and (or
-            (not gdb-gud-control-all-threads)
-            (not gdb-non-stop))
-           gud-running)
-      (and gdb-gud-control-all-threads
-           (> gdb-running-threads-count 0))))
-
-;; GUD displays the selected GDB frame.  This might might not be the current
-;; GDB frame (after up, down etc).  If no GDB frame is visible but the last
-;; visited breakpoint is, use that window.
-(defun gdb-display-source-buffer (buffer)
-  (let* ((last-window (if gud-last-last-frame
-                         (get-buffer-window
-                          (gud-find-file (car gud-last-last-frame)))))
-         (source-window (or last-window
-                            (if (and gdb-source-window
-                                     (window-live-p gdb-source-window))
-                                gdb-source-window))))
-    (when source-window
-      (setq gdb-source-window source-window)
-      (set-window-buffer source-window buffer))
-    source-window))
-
-(defun gdb-car< (a b)
-  (< (car a) (car b)))
-
-(defvar gdbmi-record-list
-  '((gdb-gdb . "(gdb) \n")
-    (gdb-done . "\\([0-9]*\\)\\^done,?\\(.*?\\)\n")
-    (gdb-starting . "\\([0-9]*\\)\\^running\n")
-    (gdb-error . "\\([0-9]*\\)\\^error,\\(.*?\\)\n")
-    (gdb-console . "~\\(\".*?\"\\)\n")
-    (gdb-internals . "&\\(\".*?\"\\)\n")
-    (gdb-stopped . "\\*stopped,?\\(.*?\\)\n")
-    (gdb-running . "\\*running,\\(.*?\n\\)")
-    (gdb-thread-created . "=thread-created,\\(.*?\n\\)")
-    (gdb-thread-selected . "=thread-selected,\\(.*?\\)\n")
-    (gdb-thread-exited . "=thread-exited,\\(.*?\n\\)")
-    (gdb-ignored-notification . "=[-[:alpha:]]+,?\\(.*?\\)\n")
-    (gdb-shell . "\\(\\(?:^.+\n\\)+\\)")))
-
-(defun gud-gdbmi-marker-filter (string)
-  "Filter GDB/MI output."
-
-  ;; Record transactions if logging is enabled.
-  (when gdb-enable-debug
-    (push (cons 'recv string) gdb-debug-log)
-    (if (and gdb-debug-log-max
-             (> (length gdb-debug-log) gdb-debug-log-max))
-        (setcdr (nthcdr (1- gdb-debug-log-max) gdb-debug-log) nil)))
-
-  ;; Recall the left over gud-marker-acc from last time
-  (setq gud-marker-acc (concat gud-marker-acc string))
-
-  ;; Start accumulating output for the GUD buffer
-  (setq gdb-filter-output "")
-  (let ((output-record) (output-record-list))
-
-    ;; Process all the complete markers in this chunk.
-    (dolist (gdbmi-record gdbmi-record-list)
-      (while (string-match (cdr gdbmi-record) gud-marker-acc)
-        (push (list (match-beginning 0)
-                    (car gdbmi-record)
-                    (match-string 1 gud-marker-acc)
-                    (match-string 2 gud-marker-acc)
-                    (match-end 0))
-              output-record-list)
-        (setq gud-marker-acc
-              (concat (substring gud-marker-acc 0 (match-beginning 0))
-                      ;; Pad with spaces to preserve position.
-                      (make-string (length (match-string 0 gud-marker-acc)) 32)
-                      (substring gud-marker-acc (match-end 0))))))
-
-    (setq output-record-list (sort output-record-list 'gdb-car<))
-
-    (dolist (output-record output-record-list)
-      (let ((record-type (cadr output-record))
-            (arg1 (nth 2 output-record))
-            (arg2 (nth 3 output-record)))
-        (if (eq record-type 'gdb-error)
-            (gdb-done-or-error arg2 arg1 'error)
-          (if (eq record-type 'gdb-done)
-              (gdb-done-or-error arg2 arg1 'done)
-            ;; Suppress "No registers." since GDB 6.8 and earlier duplicates MI
-            ;; error message on internal stream.  Don't print to GUD buffer.
-            (unless (and (eq record-type 'gdb-internals)
-                     (string-equal (read arg1) "No registers.\n"))
-              (funcall record-type arg1))))))
-
-    (setq gdb-output-sink 'user)
-    ;; Remove padding.
-    (string-match "^ *" gud-marker-acc)
-    (setq gud-marker-acc (substring gud-marker-acc (match-end 0)))
-
-    gdb-filter-output))
-
-(defun gdb-gdb (output-field))
-
-(defun gdb-shell (output-field)
-  (let ((gdb-output-sink gdb-output-sink))
-    (setq gdb-filter-output
-          (concat output-field gdb-filter-output))))
-
-(defun gdb-ignored-notification (output-field))
-
-;; gdb-invalidate-threads is defined to accept 'update-threads signal
-(defun gdb-thread-created (output-field))
-(defun gdb-thread-exited (output-field)
-  "Handle =thread-exited async record: unset `gdb-thread-number'
- if current thread exited and update threads list."
-   (let* ((thread-id (bindat-get-field (gdb-json-string output-field) 'id)))
-     (if (string= gdb-thread-number thread-id)
-         (gdb-setq-thread-number nil))
-     ;; When we continue current thread and it quickly exits,
-     ;; gdb-pending-triggers left after gdb-running disallow us to
-     ;; properly call -thread-info without --thread option. Thus we
-     ;; need to use gdb-wait-for-pending.
-     (gdb-wait-for-pending
-      (gdb-emit-signal gdb-buf-publisher 'update-threads))))
-
-(defun gdb-thread-selected (output-field)
-  "Handler for =thread-selected MI output record.
-
-Sets `gdb-thread-number' to new id."
-  (let* ((result (gdb-json-string output-field))
-         (thread-id (bindat-get-field result 'id)))
-    (gdb-setq-thread-number thread-id)
-    ;; Typing `thread N` in GUD buffer makes GDB emit `^done` followed
-    ;; by `=thread-selected` notification. `^done` causes `gdb-update`
-    ;; as usually. Things happen to fast and second call (from
-    ;; gdb-thread-selected handler) gets cut off by our beloved
-    ;; gdb-pending-triggers.
-    ;; Solution is `gdb-wait-for-pending` macro: it guarantees that its
-    ;; body will get executed when `gdb-pending-triggers` is empty.
-    (gdb-wait-for-pending
-     (gdb-update))))
-
-(defun gdb-running (output-field)
-  (let* ((thread-id (bindat-get-field (gdb-json-string output-field) 'thread-id)))
-    ;; We reset gdb-frame-number to nil if current thread has gone
-    ;; running. This can't be done in gdb-thread-list-handler-custom
-    ;; because we need correct gdb-frame-number by the time
-    ;; -thread-info command is sent.
-    (when (or (string-equal thread-id "all")
-              (string-equal thread-id gdb-thread-number))
-      (setq gdb-frame-number nil)))
-  (setq gdb-inferior-status "running")
-  (gdb-force-mode-line-update
-   (propertize gdb-inferior-status 'face font-lock-type-face))
-  (when (not gdb-non-stop)
-    (setq gud-running t))
-  (setq gdb-active-process t)
-  (gdb-emit-signal gdb-buf-publisher 'update-threads))
-
-(defun gdb-starting (output-field)
-  ;; CLI commands don't emit ^running at the moment so use gdb-running too.
-  (setq gdb-inferior-status "running")
-  (gdb-force-mode-line-update
-   (propertize gdb-inferior-status 'face font-lock-type-face))
-  (setq gdb-active-process t)
-  (setq gud-running t)
-  ;; GDB doesn't seem to respond to -thread-info before first stop or
-  ;; thread exit (even in non-stop mode), so this is useless.
-  ;; Behaviour may change in the future.
-  (gdb-emit-signal gdb-buf-publisher 'update-threads))
-
-;; -break-insert -t didn't give a reason before gdb 6.9
-
-(defun gdb-stopped (output-field)
-  "Given the contents of *stopped MI async record, select new
-current thread and update GDB buffers."
-  ;; Reason is available with target-async only
-  (let* ((result (gdb-json-string output-field))
-         (reason (bindat-get-field result 'reason))
-         (thread-id (bindat-get-field result 'thread-id)))
-
-    ;; -data-list-register-names needs to be issued for any stopped
-    ;; thread
-    (when (not gdb-register-names)
-      (gdb-input
-       (list (concat "-data-list-register-names"
-                     (if (string-equal gdb-version "7.0+")
-                         (concat" --thread " thread-id)))
-             'gdb-register-names-handler)))
-
-;;; Don't set gud-last-frame here as it's currently done in gdb-frame-handler
-;;; because synchronous GDB doesn't give these fields with CLI.
-;;;     (when file
-;;;       (setq
-;;;        ;; Extract the frame position from the marker.
-;;;        gud-last-frame (cons file
-;;;                         (string-to-number
-;;;                          (match-string 6 gud-marker-acc)))))
-
-    (setq gdb-inferior-status (or reason "unknown"))
-    (gdb-force-mode-line-update
-     (propertize gdb-inferior-status 'face font-lock-warning-face))
-    (if (string-equal reason "exited-normally")
-        (setq gdb-active-process nil))
-
-    ;; Select new current thread.
-
-    ;; Don't switch if we have no reasons selected
-    (when gdb-switch-reasons
-      ;; Switch from another stopped thread only if we have
-      ;; gdb-switch-when-another-stopped:
-      (when (or gdb-switch-when-another-stopped
-                (not (string= "stopped"
-                              (bindat-get-field (gdb-current-buffer-thread) 'state))))
-        ;; Switch if current reason has been selected or we have no
-        ;; reasons
-        (if (or (eq gdb-switch-reasons t)
-                (member reason gdb-switch-reasons))
-              (when (not (string-equal gdb-thread-number thread-id))
-                (message (concat "Switched to thread " thread-id))
-                (gdb-setq-thread-number thread-id))
-          (message (format "Thread %s stopped" thread-id)))))
-
-  ;; Print "(gdb)" to GUD console
-  (when gdb-first-done-or-error
-    (setq gdb-filter-output (concat gdb-filter-output gdb-prompt-name)))
-
-  ;; In non-stop, we update information as soon as another thread gets
-  ;; stopped
-  (when (or gdb-first-done-or-error
-            gdb-non-stop)
-    ;; In all-stop this updates gud-running properly as well.
-    (gdb-update)
-    (setq gdb-first-done-or-error nil))
-  (run-hook-with-args 'gdb-stopped-hooks result)))
-
-;; Remove the trimmings from log stream containing debugging messages
-;; being produced by GDB's internals, use warning face and send to GUD
-;; buffer.
-(defun gdb-internals (output-field)
-  (setq gdb-filter-output
-        (gdb-concat-output
-         gdb-filter-output
-         (let ((error-message
-                (read output-field)))
-           (put-text-property
-            0 (length error-message)
-            'face font-lock-warning-face
-            error-message)
-           error-message))))
-
-;; Remove the trimmings from the console stream and send to GUD buffer
-;; (frontend MI commands should not print to this stream)
-(defun gdb-console (output-field)
-   (setq gdb-filter-output
-        (gdb-concat-output
-         gdb-filter-output
-         (read output-field))))
-
-(defun gdb-done-or-error (output-field token-number type)
-  (if (string-equal token-number "")
-      ;; Output from command entered by user
-      (progn
-        (setq gdb-output-sink 'user)
-        (setq token-number nil)
-        ;; MI error - send to minibuffer
-        (when (eq type 'error)
-            ;; Skip "msg=" from `output-field'
-            (message (read (substring output-field 4)))
-            ;; Don't send to the console twice.  (If it is a console error
-            ;; it is also in the console stream.)
-            (setq output-field nil)))
-    ;; Output from command from frontend.
-    (setq gdb-output-sink 'emacs))
-
-  (gdb-clear-partial-output)
-  (when gdb-first-done-or-error
-    (unless (or token-number gud-running)
-      (setq gdb-filter-output (concat gdb-filter-output gdb-prompt-name)))
-    (gdb-update)
-    (setq gdb-first-done-or-error nil))
-
-  (setq gdb-filter-output
-        (gdb-concat-output gdb-filter-output output-field))
-
-  (if token-number
-      (progn
-        (with-current-buffer
-            (gdb-get-buffer-create 'gdb-partial-output-buffer)
-          (funcall
-           (cdr (assoc (string-to-number token-number) gdb-handler-alist))))
-        (setq gdb-handler-alist
-              (assq-delete-all token-number gdb-handler-alist)))))
-
-(defun gdb-concat-output (so-far new)
-  (let ((sink gdb-output-sink))
-    (cond
-     ((eq sink 'user) (concat so-far new))
-     ((eq sink 'emacs)
-      (gdb-append-to-partial-output new)
-      so-far))))
-
-(defun gdb-append-to-partial-output (string)
-  (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
-    (goto-char (point-max))
-    (insert string)))
-
-(defun gdb-clear-partial-output ()
-  (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
-    (erase-buffer)))
-
-(defun gdb-jsonify-buffer (&optional fix-key fix-list)
-  "Prepare GDB/MI output in current buffer for parsing with `json-read'.
-
-Field names are wrapped in double quotes and equal signs are
-replaced with semicolons.
-
-If FIX-KEY is non-nil, strip all \"FIX-KEY=\" occurences from
-partial output. This is used to get rid of useless keys in lists
-in MI messages, e.g.: [key=.., key=..]. -stack-list-frames and
--break-info are examples of MI commands which issue such
-responses.
-
-If FIX-LIST is non-nil, \"FIX-LIST={..}\" is replaced with
-\"FIX-LIST=[..]\" prior to parsing. This is used to fix broken
--break-info output when it contains breakpoint script field
-incompatible with GDB/MI output syntax."
-  (save-excursion
-    (goto-char (point-min))
-    (when fix-key
-      (save-excursion
-        (while (re-search-forward (concat "[\\[,]\\(" fix-key "=\\)") nil t)
-          (replace-match "" nil nil nil 1))))
-    (when fix-list
-      (save-excursion
-        ;; Find positions of braces which enclose broken list
-        (while (re-search-forward (concat fix-list "={\"") nil t)
-          (let ((p1 (goto-char (- (point) 2)))
-                (p2 (progn (forward-sexp)
-                           (1- (point)))))
-            ;; Replace braces with brackets
-            (save-excursion
-              (goto-char p1)
-              (delete-char 1)
-              (insert "[")
-              (goto-char p2)
-              (delete-char 1)
-              (insert "]"))))))
-    (goto-char (point-min))
-    (insert "{")
-    (while (re-search-forward
-            "\\([[:alnum:]-_]+\\)=\\({\\|\\[\\|\"\"\\|\".*?[^\\]\"\\)" nil t)
-      (replace-match "\"\\1\":\\2" nil nil))
-    (goto-char (point-max))
-    (insert "}")))
-
-(defun gdb-json-read-buffer (&optional fix-key fix-list)
-  "Prepare and parse GDB/MI output in current buffer with `json-read'.
-
-FIX-KEY and FIX-LIST work as in `gdb-jsonify-buffer'."
-  (gdb-jsonify-buffer fix-key fix-list)
-  (save-excursion
-    (goto-char (point-min))
-    (let ((json-array-type 'list))
-      (json-read))))
-
-(defun gdb-json-string (string &optional fix-key fix-list)
-  "Prepare and parse STRING containing GDB/MI output with `json-read'.
-
-FIX-KEY and FIX-LIST work as in `gdb-jsonify-buffer'."
-  (with-temp-buffer
-    (insert string)
-    (gdb-json-read-buffer fix-key fix-list)))
-
-(defun gdb-json-partial-output (&optional fix-key fix-list)
-  "Prepare and parse gdb-partial-output-buffer with `json-read'.
-
-FIX-KEY and FIX-KEY work as in `gdb-jsonify-buffer'."
-  (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
-    (gdb-json-read-buffer fix-key fix-list)))
-
-(defun gdb-line-posns (line)
-  "Return a pair of LINE beginning and end positions."
-  (let ((offset (1+ (- line (line-number-at-pos)))))
-    (cons
-     (line-beginning-position offset)
-     (line-end-position offset))))
-
-(defmacro gdb-mark-line (line variable)
-  "Set VARIABLE marker to point at beginning of LINE.
-
-If current window has no fringes, inverse colors on LINE.
-
-Return position where LINE begins."
-  `(save-excursion
-     (let* ((posns (gdb-line-posns ,line))
-            (start-posn (car posns))
-            (end-posn (cdr posns)))
-       (set-marker ,variable (copy-marker start-posn))
-       (when (not (> (car (window-fringes)) 0))
-         (put-text-property start-posn end-posn
-                            'font-lock-face '(:inverse-video t)))
-       start-posn)))
-
-(defun gdb-pad-string (string padding)
-  (format (concat "%" (number-to-string padding) "s") string))
-
-;; gdb-table struct is a way to programmatically construct simple
-;; tables. It help to reliably align columns of data in GDB buffers
-;; and provides
-(defstruct
-  gdb-table
-  (column-sizes nil)
-  (rows nil)
-  (row-properties nil)
-  (right-align nil))
-
-(defun gdb-mapcar* (function &rest seqs)
-  "Apply FUNCTION to each element of SEQS, and make a list of the results.
-If there are several SEQS, FUNCTION is called with that many
-arugments, and mapping stops as sson as the shortest list runs
-out."
-  (let ((shortest (apply #'min (mapcar #'length seqs))))
-    (mapcar (lambda (i)
-              (apply function
-                     (mapcar
-                      (lambda (seq)
-                        (nth i seq))
-                      seqs)))
-            (number-sequence 0 (1- shortest)))))
-
-(defun gdb-table-add-row (table row &optional properties)
-  "Add ROW of string to TABLE and recalculate column sizes.
-
-When non-nil, PROPERTIES will be added to the whole row when
-calling `gdb-table-string'."
-  (let ((rows (gdb-table-rows table))
-        (row-properties (gdb-table-row-properties table))
-        (column-sizes (gdb-table-column-sizes table))
-        (right-align (gdb-table-right-align table)))
-    (when (not column-sizes)
-      (setf (gdb-table-column-sizes table)
-            (make-list (length row) 0)))
-    (setf (gdb-table-rows table)
-          (append rows (list row)))
-    (setf (gdb-table-row-properties table)
-          (append row-properties (list properties)))
-    (setf (gdb-table-column-sizes table)
-          (gdb-mapcar* (lambda (x s)
-                     (let ((new-x
-                            (max (abs x) (string-width (or s "")))))
-                       (if right-align new-x (- new-x))))
-                   (gdb-table-column-sizes table)
-                   row))
-    ;; Avoid trailing whitespace at eol
-    (if (not (gdb-table-right-align table))
-        (setcar (last (gdb-table-column-sizes table)) 0))))
-
-(defun gdb-table-string (table &optional sep)
-  "Return TABLE as a string with columns separated with SEP."
-  (let ((column-sizes (gdb-table-column-sizes table))
-        (res ""))
-    (mapconcat
-     'identity
-     (gdb-mapcar*
-      (lambda (row properties)
-        (apply 'propertize
-               (mapconcat 'identity
-                          (gdb-mapcar* (lambda (s x) (gdb-pad-string s x))
-                                       row column-sizes)
-                          sep)
-               properties))
-      (gdb-table-rows table)
-      (gdb-table-row-properties table))
-     "\n")))
-
-;; bindat-get-field goes deep, gdb-get-many-fields goes wide
-(defun gdb-get-many-fields (struct &rest fields)
-  "Return a list of FIELDS values from STRUCT."
-  (let ((values))
-    (dolist (field fields values)
-      (setq values (append values (list (bindat-get-field struct field)))))))
-
-(defmacro def-gdb-auto-update-trigger (trigger-name gdb-command
-                                                    handler-name
-                                                    &optional signal-list)
-  "Define a trigger TRIGGER-NAME which sends GDB-COMMAND and sets
-HANDLER-NAME as its handler. HANDLER-NAME is bound to current
-buffer with `gdb-bind-function-to-buffer'.
-
-If SIGNAL-LIST is non-nil, GDB-COMMAND is sent only when the
-defined trigger is called with an argument from SIGNAL-LIST. It's
-not recommended to define triggers with empty SIGNAL-LIST.
-Normally triggers should respond at least to 'update signal.
-
-Normally the trigger defined by this command must be called from
-the buffer where HANDLER-NAME must work. This should be done so
-that buffer-local thread number may be used in GDB-COMMAND (by
-calling `gdb-current-context-command').
-`gdb-bind-function-to-buffer' is used to achieve this, see
-`gdb-get-buffer-create'.
-
-Triggers defined by this command are meant to be used as a
-trigger argument when describing buffer types with
-`gdb-set-buffer-rules'."
-  `(defun ,trigger-name (&optional signal)
-     (when
-         (or (not ,signal-list)
-             (memq signal ,signal-list))
-       (when (not (gdb-pending-p
-                   (cons (current-buffer) ',trigger-name)))
-         (gdb-input
-          (list ,gdb-command
-                (gdb-bind-function-to-buffer ',handler-name (current-buffer))))
-         (gdb-add-pending (cons (current-buffer) ',trigger-name))))))
-
-;; Used by disassembly buffer only, the rest use
-;; def-gdb-trigger-and-handler
-(defmacro def-gdb-auto-update-handler (handler-name trigger-name custom-defun
-                                                    &optional nopreserve)
-  "Define a handler HANDLER-NAME for TRIGGER-NAME with CUSTOM-DEFUN.
-
-Handlers are normally called from the buffers they put output in.
-
-Delete ((current-buffer) . TRIGGER-NAME) from
-`gdb-pending-triggers', erase current buffer and evaluate
-CUSTOM-DEFUN. Then `gdb-update-buffer-name' is called.
-
-If NOPRESERVE is non-nil, window point is not restored after CUSTOM-DEFUN."
-  `(defun ,handler-name ()
-     (gdb-delete-pending (cons (current-buffer) ',trigger-name))
-     (let* ((buffer-read-only nil)
-            (window (get-buffer-window (current-buffer) 0))
-            (start (window-start window))
-            (p (window-point window)))
-       (erase-buffer)
-       (,custom-defun)
-       (gdb-update-buffer-name)
-       ,(when (not nopreserve)
-          '(set-window-start window start)
-          '(set-window-point window p)))))
-
-(defmacro def-gdb-trigger-and-handler (trigger-name gdb-command
-                                       handler-name custom-defun
-                                       &optional signal-list)
-  "Define trigger and handler.
-
-TRIGGER-NAME trigger is defined to send GDB-COMMAND. See
-`def-gdb-auto-update-trigger'.
-
-HANDLER-NAME handler uses customization of CUSTOM-DEFUN. See
-`def-gdb-auto-update-handler'."
-  `(progn
-     (def-gdb-auto-update-trigger ,trigger-name
-       ,gdb-command
-       ,handler-name ,signal-list)
-     (def-gdb-auto-update-handler ,handler-name
-       ,trigger-name ,custom-defun)))
-
-
-
-;; Breakpoint buffer : This displays the output of `-break-list'.
-(def-gdb-trigger-and-handler
-  gdb-invalidate-breakpoints "-break-list"
-  gdb-breakpoints-list-handler gdb-breakpoints-list-handler-custom
-  '(start update))
-
-(gdb-set-buffer-rules
- 'gdb-breakpoints-buffer
- 'gdb-breakpoints-buffer-name
- 'gdb-breakpoints-mode
- 'gdb-invalidate-breakpoints)
-
-(defun gdb-breakpoints-list-handler-custom ()
-  (let ((breakpoints-list (bindat-get-field
-                           (gdb-json-partial-output "bkpt" "script")
-                           'BreakpointTable 'body))
-        (table (make-gdb-table)))
-    (setq gdb-breakpoints-list nil)
-    (gdb-table-add-row table '("Num" "Type" "Disp" "Enb" "Addr" "Hits" "What"))
-    (dolist (breakpoint breakpoints-list)
-      (add-to-list 'gdb-breakpoints-list
-                   (cons (bindat-get-field breakpoint 'number)
-                         breakpoint))
-      (let ((at (bindat-get-field breakpoint 'at))
-            (pending (bindat-get-field breakpoint 'pending))
-            (func (bindat-get-field breakpoint 'func))
-            (type (bindat-get-field breakpoint 'type)))
-      (gdb-table-add-row table
-       (list
-        (bindat-get-field breakpoint 'number)
-        type
-        (bindat-get-field breakpoint 'disp)
-        (let ((flag (bindat-get-field breakpoint 'enabled)))
-          (if (string-equal flag "y")
-              (propertize "y" 'font-lock-face  font-lock-warning-face)
-            (propertize "n" 'font-lock-face  font-lock-comment-face)))
-        (bindat-get-field breakpoint 'addr)
-        (bindat-get-field breakpoint 'times)
-        (if (string-match ".*watchpoint" type)
-            (bindat-get-field breakpoint 'what)
-          (or pending at
-              (concat "in "
-                      (propertize func 'font-lock-face font-lock-function-name-face)
-                      (gdb-frame-location breakpoint)))))
-       ;; Add clickable properties only for breakpoints with file:line
-       ;; information
-       (append (list 'gdb-breakpoint breakpoint)
-               (when func '(help-echo "mouse-2, RET: visit breakpoint"
-                            mouse-face highlight))))))
-    (insert (gdb-table-string table " "))
-    (gdb-place-breakpoints)))
-
-;; Put breakpoint icons in relevant margins (even those set in the GUD buffer).
-(defun gdb-place-breakpoints ()
-  (let ((flag) (bptno))
-    ;; Remove all breakpoint-icons in source buffers but not assembler buffer.
-    (dolist (buffer (buffer-list))
-      (with-current-buffer buffer
-        (if (and (eq gud-minor-mode 'gdbmi)
-                 (not (string-match "\\` ?\\*.+\\*\\'" (buffer-name))))
-            (gdb-remove-breakpoint-icons (point-min) (point-max)))))
-    (dolist (breakpoint gdb-breakpoints-list)
-      (let* ((breakpoint (cdr breakpoint)) ; gdb-breakpoints-list is
-                                           ; an associative list
-             (line (bindat-get-field breakpoint 'line)))
-        (when line
-          (let ((file (bindat-get-field breakpoint 'fullname))
-                (flag (bindat-get-field breakpoint 'enabled))
-                (bptno (bindat-get-field breakpoint 'number)))
-            (unless (file-exists-p file)
-              (setq file (cdr (assoc bptno gdb-location-alist))))
-            (if (and file
-                     (not (string-equal file "File not found")))
-                (with-current-buffer
-                    (find-file-noselect file 'nowarn)
-                  (gdb-init-buffer)
-                  ;; Only want one breakpoint icon at each location.
-                  (gdb-put-breakpoint-icon (string-equal flag "y") bptno
-                                           (string-to-number line)))
-              (gdb-input
-               (list (concat "list " file ":1")
-                     'ignore))
-              (gdb-input
-               (list "-file-list-exec-source-file"
-                     `(lambda () (gdb-get-location
-                                  ,bptno ,line ,flag)))))))))))
-
-(defvar gdb-source-file-regexp "fullname=\"\\(.*?\\)\"")
-
-(defun gdb-get-location (bptno line flag)
-  "Find the directory containing the relevant source file.
-Put in buffer and place breakpoint icon."
-  (goto-char (point-min))
-  (catch 'file-not-found
-    (if (re-search-forward gdb-source-file-regexp nil t)
-        (delete (cons bptno "File not found") gdb-location-alist)
-        (push (cons bptno (match-string 1)) gdb-location-alist)
-      (gdb-resync)
-      (unless (assoc bptno gdb-location-alist)
-        (push (cons bptno "File not found") gdb-location-alist)
-        (message-box "Cannot find source file for breakpoint location.
-Add directory to search path for source files using the GDB command, dir."))
-      (throw 'file-not-found nil))
-    (with-current-buffer (find-file-noselect (match-string 1))
-      (gdb-init-buffer)
-      ;; only want one breakpoint icon at each location
-      (gdb-put-breakpoint-icon (eq flag ?y) bptno (string-to-number line)))))
-
-(add-hook 'find-file-hook 'gdb-find-file-hook)
-
-(defun gdb-find-file-hook ()
-  "Set up buffer for debugging if file is part of the source code
-of the current session."
-  (if (and (buffer-name gud-comint-buffer)
-           ;; in case gud or gdb-ui is just loaded
-           gud-comint-buffer
-           (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-               'gdbmi))
-      (if (member buffer-file-name gdb-source-file-list)
-          (with-current-buffer (find-buffer-visiting buffer-file-name)
-            (gdb-init-buffer)))))
-
-(declare-function gud-remove "gdb-mi" t t) ; gud-def
-(declare-function gud-break  "gdb-mi" t t) ; gud-def
-(declare-function fringe-bitmaps-at-pos "fringe.c" (&optional pos window))
-
-(defun gdb-mouse-set-clear-breakpoint (event)
-  "Set/clear breakpoint in left fringe/margin at mouse click.
-If not in a source or disassembly buffer just set point."
-  (interactive "e")
-  (mouse-minibuffer-check event)
-  (let ((posn (event-end event)))
-    (with-selected-window (posn-window posn)
-      (if (or (buffer-file-name) (eq major-mode 'gdb-disassembly-mode))
-          (if (numberp (posn-point posn))
-              (save-excursion
-                (goto-char (posn-point posn))
-                (if (or (posn-object posn)
-                        (eq (car (fringe-bitmaps-at-pos (posn-point posn)))
-                            'breakpoint))
-                    (gud-remove nil)
-                  (gud-break nil)))))
-      (posn-set-point posn))))
-
-(defun gdb-mouse-toggle-breakpoint-margin (event)
-  "Enable/disable breakpoint in left margin with mouse click."
-  (interactive "e")
-  (mouse-minibuffer-check event)
-  (let ((posn (event-end event)))
-    (if (numberp (posn-point posn))
-        (with-selected-window (posn-window posn)
-          (save-excursion
-            (goto-char (posn-point posn))
-            (if (posn-object posn)
-                (gud-basic-call
-                 (let ((bptno (get-text-property
-                               0 'gdb-bptno (car (posn-string posn)))))
-                   (concat
-                    (if (get-text-property
-                         0 'gdb-enabled (car (posn-string posn)))
-                        "-break-disable "
-                      "-break-enable ")
-                    bptno)))))))))
-
-(defun gdb-mouse-toggle-breakpoint-fringe (event)
-  "Enable/disable breakpoint in left fringe with mouse click."
-  (interactive "e")
-  (mouse-minibuffer-check event)
-  (let* ((posn (event-end event))
-         (pos (posn-point posn))
-         obj)
-    (when (numberp pos)
-      (with-selected-window (posn-window posn)
-        (with-current-buffer (window-buffer (selected-window))
-          (goto-char pos)
-          (dolist (overlay (overlays-in pos pos))
-            (when (overlay-get overlay 'put-break)
-              (setq obj (overlay-get overlay 'before-string))))
-          (when (stringp obj)
-            (gud-basic-call
-             (concat
-              (if (get-text-property 0 'gdb-enabled obj)
-                  "-break-disable "
-                "-break-enable ")
-               (get-text-property 0 'gdb-bptno obj)))))))))
-
-(defun gdb-breakpoints-buffer-name ()
-  (concat "*breakpoints of " (gdb-get-target-string) "*"))
-
-(def-gdb-display-buffer
- gdb-display-breakpoints-buffer
- 'gdb-breakpoints-buffer
- "Display status of user-settable breakpoints.")
-
-(def-gdb-frame-for-buffer
- gdb-frame-breakpoints-buffer
- 'gdb-breakpoints-buffer
- "Display status of user-settable breakpoints in a new frame.")
-
-(defvar gdb-breakpoints-mode-map
-  (let ((map (make-sparse-keymap))
-        (menu (make-sparse-keymap "Breakpoints")))
-    (define-key menu [quit] '("Quit"   . gdb-delete-frame-or-window))
-    (define-key menu [goto] '("Goto"   . gdb-goto-breakpoint))
-    (define-key menu [delete] '("Delete" . gdb-delete-breakpoint))
-    (define-key menu [toggle] '("Toggle" . gdb-toggle-breakpoint))
-    (suppress-keymap map)
-    (define-key map [menu-bar breakpoints] (cons "Breakpoints" menu))
-    (define-key map " " 'gdb-toggle-breakpoint)
-    (define-key map "D" 'gdb-delete-breakpoint)
-    ;; Don't bind "q" to kill-this-buffer as we need it for breakpoint icons.
-    (define-key map "q" 'gdb-delete-frame-or-window)
-    (define-key map "\r" 'gdb-goto-breakpoint)
-    (define-key map "\t" '(lambda ()
-                            (interactive)
-                            (gdb-set-window-buffer
-                             (gdb-get-buffer-create 'gdb-threads-buffer) t)))
-    (define-key map [mouse-2] 'gdb-goto-breakpoint)
-    (define-key map [follow-link] 'mouse-face)
-    map))
-
-(defun gdb-delete-frame-or-window ()
-  "Delete frame if there is only one window.  Otherwise delete the window."
-  (interactive)
-  (if (one-window-p) (delete-frame)
-    (delete-window)))
-
-;;from make-mode-line-mouse-map
-(defun gdb-make-header-line-mouse-map (mouse function) "\
-Return a keymap with single entry for mouse key MOUSE on the header line.
-MOUSE is defined to run function FUNCTION with no args in the buffer
-corresponding to the mode line clicked."
-  (let ((map (make-sparse-keymap)))
-    (define-key map (vector 'header-line mouse) function)
-    (define-key map (vector 'header-line 'down-mouse-1) 'ignore)
-    map))
-
-(defmacro gdb-propertize-header (name buffer help-echo mouse-face face)
-  `(propertize ,name
-               'help-echo ,help-echo
-               'mouse-face ',mouse-face
-               'face ',face
-               'local-map
-               (gdb-make-header-line-mouse-map
-                'mouse-1
-                (lambda (event) (interactive "e")
-                  (save-selected-window
-                    (select-window (posn-window (event-start event)))
-                    (gdb-set-window-buffer
-                     (gdb-get-buffer-create ',buffer) t) )))))
-
-
-;; uses "-thread-info". Needs GDB 7.0 onwards.
-;;; Threads view
-
-(defun gdb-threads-buffer-name ()
-  (concat "*threads of " (gdb-get-target-string) "*"))
-
-(def-gdb-display-buffer
- gdb-display-threads-buffer
- 'gdb-threads-buffer
- "Display GDB threads.")
-
-(def-gdb-frame-for-buffer
- gdb-frame-threads-buffer
- 'gdb-threads-buffer
- "Display GDB threads in a new frame.")
-
-(def-gdb-trigger-and-handler
-  gdb-invalidate-threads (gdb-current-context-command "-thread-info")
-  gdb-thread-list-handler gdb-thread-list-handler-custom
-  '(start update update-threads))
-
-(gdb-set-buffer-rules
- 'gdb-threads-buffer
- 'gdb-threads-buffer-name
- 'gdb-threads-mode
- 'gdb-invalidate-threads)
-
-(defvar gdb-threads-font-lock-keywords
-  '(("in \\([^ ]+\\)"  (1 font-lock-function-name-face))
-    (" \\(stopped\\)"  (1 font-lock-warning-face))
-    (" \\(running\\)"  (1 font-lock-string-face))
-    ("\\(\\(\\sw\\|[_.]\\)+\\)="  (1 font-lock-variable-name-face)))
-  "Font lock keywords used in `gdb-threads-mode'.")
-
-(defvar gdb-threads-mode-map
-  (let ((map (make-sparse-keymap)))
-    (define-key map "\r" 'gdb-select-thread)
-    (define-key map "f" 'gdb-display-stack-for-thread)
-    (define-key map "F" 'gdb-frame-stack-for-thread)
-    (define-key map "l" 'gdb-display-locals-for-thread)
-    (define-key map "L" 'gdb-frame-locals-for-thread)
-    (define-key map "r" 'gdb-display-registers-for-thread)
-    (define-key map "R" 'gdb-frame-registers-for-thread)
-    (define-key map "d" 'gdb-display-disassembly-for-thread)
-    (define-key map "D" 'gdb-frame-disassembly-for-thread)
-    (define-key map "i" 'gdb-interrupt-thread)
-    (define-key map "c" 'gdb-continue-thread)
-    (define-key map "s" 'gdb-step-thread)
-    (define-key map "\t" '(lambda ()
-                            (interactive)
-                            (gdb-set-window-buffer
-                             (gdb-get-buffer-create 'gdb-breakpoints-buffer) t)))
-    (define-key map [mouse-2] 'gdb-select-thread)
-    (define-key map [follow-link] 'mouse-face)
-    map))
-
-(defvar gdb-threads-header
-  (list
-   (gdb-propertize-header "Breakpoints" gdb-breakpoints-buffer
-                          "mouse-1: select" mode-line-highlight mode-line-inactive)
-   " "
-   (gdb-propertize-header "Threads" gdb-threads-buffer
-                          nil nil mode-line)))
-
-(define-derived-mode gdb-threads-mode gdb-parent-mode "Threads"
-  "Major mode for GDB threads.
-
-\\{gdb-threads-mode-map}"
-  (setq gdb-thread-position (make-marker))
-  (add-to-list 'overlay-arrow-variable-list 'gdb-thread-position)
-  (setq header-line-format gdb-threads-header)
-  (set (make-local-variable 'font-lock-defaults)
-       '(gdb-threads-font-lock-keywords))
-  (run-mode-hooks 'gdb-threads-mode-hook)
-  'gdb-invalidate-threads)
-
-(defun gdb-thread-list-handler-custom ()
-  (let ((threads-list (bindat-get-field (gdb-json-partial-output) 'threads))
-        (table (make-gdb-table))
-        (marked-line nil))
-    (setq gdb-threads-list nil)
-    (setq gdb-running-threads-count 0)
-    (setq gdb-stopped-threads-count 0)
-    (set-marker gdb-thread-position nil)
-
-    (dolist (thread (reverse threads-list))
-      (let ((running (string-equal (bindat-get-field thread 'state) "running")))
-      (add-to-list 'gdb-threads-list
-                   (cons (bindat-get-field thread 'id)
-                         thread))
-      (if running
-          (incf gdb-running-threads-count)
-        (incf gdb-stopped-threads-count))
-
-      (gdb-table-add-row table
-       (list
-        (bindat-get-field thread 'id)
-        (concat
-         (if gdb-thread-buffer-verbose-names
-             (concat (bindat-get-field thread 'target-id) " ") "")
-         (bindat-get-field thread 'state)
-         ;; Include frame information for stopped threads
-         (if (not running)
-             (concat
-              " in " (bindat-get-field thread 'frame 'func)
-              (if gdb-thread-buffer-arguments
-                  (concat
-                   " ("
-                   (let ((args (bindat-get-field thread 'frame 'args)))
-                     (mapconcat
-                      (lambda (arg)
-                        (apply 'format `("%s=%s" ,@(gdb-get-many-fields arg 'name 'value))))
-                      args ","))
-                   ")")
-                "")
-              (if gdb-thread-buffer-locations
-                  (gdb-frame-location (bindat-get-field thread 'frame)) "")
-              (if gdb-thread-buffer-addresses
-                  (concat " at " (bindat-get-field thread 'frame 'addr)) ""))
-           "")))
-       (list
-        'gdb-thread thread
-        'mouse-face 'highlight
-        'help-echo "mouse-2, RET: select thread")))
-      (when (string-equal gdb-thread-number
-                          (bindat-get-field thread 'id))
-        (setq marked-line (length gdb-threads-list))))
-    (insert (gdb-table-string table " "))
-    (when marked-line
-      (gdb-mark-line marked-line gdb-thread-position)))
-  ;; We update gud-running here because we need to make sure that
-  ;; gdb-threads-list is up-to-date
-  (gdb-update-gud-running)
-  (gdb-emit-signal gdb-buf-publisher 'update-disassembly))
-
-(defmacro def-gdb-thread-buffer-command (name custom-defun &optional doc)
-  "Define a NAME command which will act upon thread on the current line.
-
-CUSTOM-DEFUN may use locally bound `thread' variable, which will
-be the value of 'gdb-thread property of the current line. If
-'gdb-thread is nil, error is signaled."
-  `(defun ,name (&optional event)
-     ,(when doc doc)
-     (interactive (list last-input-event))
-     (if event (posn-set-point (event-end event)))
-     (save-excursion
-       (beginning-of-line)
-       (let ((thread (get-text-property (point) 'gdb-thread)))
-         (if thread
-             ,custom-defun
-           (error "Not recognized as thread line"))))))
-
-(defmacro def-gdb-thread-buffer-simple-command (name buffer-command &optional doc)
-  "Define a NAME which will call BUFFER-COMMAND with id of thread
-on the current line."
-  `(def-gdb-thread-buffer-command ,name
-     (,buffer-command (bindat-get-field thread 'id))
-     ,doc))
-
-(def-gdb-thread-buffer-command gdb-select-thread
-  (let ((new-id (bindat-get-field thread 'id)))
-    (gdb-setq-thread-number new-id)
-    (gdb-input (list (concat "-thread-select " new-id) 'ignore))
-    (gdb-update))
-  "Select the thread at current line of threads buffer.")
-
-(def-gdb-thread-buffer-simple-command
-  gdb-display-stack-for-thread
-  gdb-preemptively-display-stack-buffer
-  "Display stack buffer for the thread at current line.")
-
-(def-gdb-thread-buffer-simple-command
-  gdb-display-locals-for-thread
-  gdb-preemptively-display-locals-buffer
-  "Display locals buffer for the thread at current line.")
-
-(def-gdb-thread-buffer-simple-command
-  gdb-display-registers-for-thread
-  gdb-preemptively-display-registers-buffer
-  "Display registers buffer for the thread at current line.")
-
-(def-gdb-thread-buffer-simple-command
-  gdb-display-disassembly-for-thread
-  gdb-preemptively-display-disassembly-buffer
-  "Display disassembly buffer for the thread at current line.")
-
-(def-gdb-thread-buffer-simple-command
-  gdb-frame-stack-for-thread
-  gdb-frame-stack-buffer
-  "Display a new frame with stack buffer for the thread at
-current line.")
-
-(def-gdb-thread-buffer-simple-command
-  gdb-frame-locals-for-thread
-  gdb-frame-locals-buffer
-  "Display a new frame with locals buffer for the thread at
-current line.")
-
-(def-gdb-thread-buffer-simple-command
-  gdb-frame-registers-for-thread
-  gdb-frame-registers-buffer
-  "Display a new frame with registers buffer for the thread at
-current line.")
-
-(def-gdb-thread-buffer-simple-command
-  gdb-frame-disassembly-for-thread
-  gdb-frame-disassembly-buffer
-  "Display a new frame with disassembly buffer for the thread at
-current line.")
-
-(defmacro def-gdb-thread-buffer-gud-command (name gud-command &optional doc)
-  "Define a NAME which will execute GUD-COMMAND with
-`gdb-thread-number' locally bound to id of thread on the current
-line."
-  `(def-gdb-thread-buffer-command ,name
-     (if gdb-non-stop
-         (let ((gdb-thread-number (bindat-get-field thread 'id))
-               (gdb-gud-control-all-threads nil))
-           (call-interactively #',gud-command))
-       (error "Available in non-stop mode only, customize `gdb-non-stop-setting'"))
-     ,doc))
-
-(def-gdb-thread-buffer-gud-command
-  gdb-interrupt-thread
-  gud-stop-subjob
-  "Interrupt thread at current line.")
-
-(def-gdb-thread-buffer-gud-command
-  gdb-continue-thread
-  gud-cont
-  "Continue thread at current line.")
-
-(def-gdb-thread-buffer-gud-command
-  gdb-step-thread
-  gud-step
-  "Step thread at current line.")
-
-
-;;; Memory view
-
-(defcustom gdb-memory-rows 8
-  "Number of data rows in memory window."
-  :type 'integer
-  :group 'gud
-  :version "23.2")
-
-(defcustom gdb-memory-columns 4
-  "Number of data columns in memory window."
-  :type 'integer
-  :group 'gud
-  :version "23.2")
-
-(defcustom gdb-memory-format "x"
-  "Display format of data items in memory window."
-  :type '(choice (const :tag "Hexadecimal" "x")
-                 (const :tag "Signed decimal" "d")
-                 (const :tag "Unsigned decimal" "u")
-                 (const :tag "Octal" "o")
-                 (const :tag "Binary" "t"))
-  :group 'gud
-  :version "22.1")
-
-(defcustom gdb-memory-unit 4
-  "Unit size of data items in memory window."
-  :type '(choice (const :tag "Byte" 1)
-                 (const :tag "Halfword" 2)
-                 (const :tag "Word" 4)
-                 (const :tag "Giant word" 8))
-  :group 'gud
-  :version "23.2")
-
-(def-gdb-trigger-and-handler
-  gdb-invalidate-memory
-  (format "-data-read-memory %s %s %d %d %d"
-          gdb-memory-address
-          gdb-memory-format
-          gdb-memory-unit
-          gdb-memory-rows
-          gdb-memory-columns)
-  gdb-read-memory-handler
-  gdb-read-memory-custom
-  '(start update))
-
-(gdb-set-buffer-rules
- 'gdb-memory-buffer
- 'gdb-memory-buffer-name
- 'gdb-memory-mode
- 'gdb-invalidate-memory)
-
-(defun gdb-memory-column-width (size format)
-  "Return length of string with memory unit of SIZE in FORMAT.
-
-SIZE is in bytes, as in `gdb-memory-unit'. FORMAT is a string as
-in `gdb-memory-format'."
-  (let ((format-base (cdr (assoc format
-                                 '(("x" . 16)
-                                   ("d" . 10) ("u" . 10)
-                                   ("o" . 8)
-                                   ("t" . 2))))))
-    (if format-base
-        (let ((res (ceiling (log (expt 2.0 (* size 8)) format-base))))
-          (cond ((string-equal format "x")
-                 (+ 2 res)) ; hexadecimal numbers have 0x in front
-                ((or (string-equal format "d")
-                     (string-equal format "o"))
-                 (1+ res))
-                (t res)))
-      (error "Unknown format"))))
-
-(defun gdb-read-memory-custom ()
-  (let* ((res (gdb-json-partial-output))
-         (err-msg (bindat-get-field res 'msg)))
-    (if (not err-msg)
-        (let ((memory (bindat-get-field res 'memory)))
-          (setq gdb-memory-address (bindat-get-field res 'addr))
-          (setq gdb-memory-next-page (bindat-get-field res 'next-page))
-          (setq gdb-memory-prev-page (bindat-get-field res 'prev-page))
-          (setq gdb-memory-last-address gdb-memory-address)
-        (dolist (row memory)
-          (insert (concat (bindat-get-field row 'addr) ":"))
-          (dolist (column (bindat-get-field row 'data))
-            (insert (gdb-pad-string column
-                                    (+ 2 (gdb-memory-column-width
-                                          gdb-memory-unit
-                                          gdb-memory-format)))))
-          (newline)))
-      ;; Show last page instead of empty buffer when out of bounds
-      (progn
-        (let ((gdb-memory-address gdb-memory-last-address))
-          (gdb-invalidate-memory 'update)
-          (error err-msg))))))
-
-(defvar gdb-memory-mode-map
-  (let ((map (make-sparse-keymap)))
-    (suppress-keymap map t)
-    (define-key map "q" 'kill-this-buffer)
-    (define-key map "n" 'gdb-memory-show-next-page)
-    (define-key map "p" 'gdb-memory-show-previous-page)
-    (define-key map "a" 'gdb-memory-set-address)
-    (define-key map "t" 'gdb-memory-format-binary)
-    (define-key map "o" 'gdb-memory-format-octal)
-    (define-key map "u" 'gdb-memory-format-unsigned)
-    (define-key map "d" 'gdb-memory-format-signed)
-    (define-key map "x" 'gdb-memory-format-hexadecimal)
-    (define-key map "b" 'gdb-memory-unit-byte)
-    (define-key map "h" 'gdb-memory-unit-halfword)
-    (define-key map "w" 'gdb-memory-unit-word)
-    (define-key map "g" 'gdb-memory-unit-giant)
-    (define-key map "R" 'gdb-memory-set-rows)
-    (define-key map "C" 'gdb-memory-set-columns)
-     map))
-
-(defun gdb-memory-set-address-event (event)
-  "Handle a click on address field in memory buffer header."
-  (interactive "e")
-  (save-selected-window
-    (select-window (posn-window (event-start event)))
-    (gdb-memory-set-address)))
-
-;; Non-event version for use within keymap
-(defun gdb-memory-set-address ()
-  "Set the start memory address."
-  (interactive)
-  (let ((arg (read-from-minibuffer "Memory address: ")))
-    (setq gdb-memory-address arg))
-  (gdb-invalidate-memory 'update))
-
-(defmacro def-gdb-set-positive-number (name variable echo-string &optional doc)
-  "Define a function NAME which reads new VAR value from minibuffer."
-  `(defun ,name (event)
-     ,(when doc doc)
-     (interactive "e")
-     (save-selected-window
-       (select-window (posn-window (event-start event)))
-       (let* ((arg (read-from-minibuffer ,echo-string))
-              (count (string-to-number arg)))
-         (if (<= count 0)
-             (error "Positive number only")
-           (customize-set-variable ',variable count)
-           (gdb-invalidate-memory 'update))))))
-
-(def-gdb-set-positive-number
-  gdb-memory-set-rows
-  gdb-memory-rows
-  "Rows: "
-  "Set the number of data rows in memory window.")
-
-(def-gdb-set-positive-number
-  gdb-memory-set-columns
-  gdb-memory-columns
-  "Columns: "
-  "Set the number of data columns in memory window.")
-
-(defmacro def-gdb-memory-format (name format doc)
-  "Define a function NAME to switch memory buffer to use FORMAT.
-
-DOC is an optional documentation string."
-  `(defun ,name () ,(when doc doc)
-     (interactive)
-     (customize-set-variable 'gdb-memory-format ,format)
-     (gdb-invalidate-memory 'update)))
-
-(def-gdb-memory-format
-  gdb-memory-format-binary "t"
-  "Set the display format to binary.")
-
-(def-gdb-memory-format
-  gdb-memory-format-octal "o"
-  "Set the display format to octal.")
-
-(def-gdb-memory-format
-  gdb-memory-format-unsigned "u"
-  "Set the display format to unsigned decimal.")
-
-(def-gdb-memory-format
-  gdb-memory-format-signed "d"
-  "Set the display format to decimal.")
-
-(def-gdb-memory-format
-  gdb-memory-format-hexadecimal "x"
-  "Set the display format to hexadecimal.")
-
-(defvar gdb-memory-format-map
-  (let ((map (make-sparse-keymap)))
-    (define-key map [header-line down-mouse-3] 'gdb-memory-format-menu-1)
-    map)
-  "Keymap to select format in the header line.")
-
-(defvar gdb-memory-format-menu (make-sparse-keymap "Format")
-  "Menu of display formats in the header line.")
-
-(define-key gdb-memory-format-menu [binary]
-  '(menu-item "Binary" gdb-memory-format-binary
-              :button (:radio . (equal gdb-memory-format "t"))))
-(define-key gdb-memory-format-menu [octal]
-  '(menu-item "Octal" gdb-memory-format-octal
-              :button (:radio . (equal gdb-memory-format "o"))))
-(define-key gdb-memory-format-menu [unsigned]
-  '(menu-item "Unsigned Decimal" gdb-memory-format-unsigned
-              :button (:radio . (equal gdb-memory-format "u"))))
-(define-key gdb-memory-format-menu [signed]
-  '(menu-item "Signed Decimal" gdb-memory-format-signed
-              :button (:radio . (equal gdb-memory-format "d"))))
-(define-key gdb-memory-format-menu [hexadecimal]
-  '(menu-item "Hexadecimal" gdb-memory-format-hexadecimal
-              :button (:radio . (equal gdb-memory-format "x"))))
-
-(defun gdb-memory-format-menu (event)
-  (interactive "@e")
-  (x-popup-menu event gdb-memory-format-menu))
-
-(defun gdb-memory-format-menu-1 (event)
-  (interactive "e")
-  (save-selected-window
-    (select-window (posn-window (event-start event)))
-    (let* ((selection (gdb-memory-format-menu event))
-           (binding (and selection (lookup-key gdb-memory-format-menu
-                                               (vector (car selection))))))
-      (if binding (call-interactively binding)))))
-
-(defmacro def-gdb-memory-unit (name unit-size doc)
-  "Define a function NAME to switch memory unit size to UNIT-SIZE.
-
-DOC is an optional documentation string."
-  `(defun ,name () ,(when doc doc)
-     (interactive)
-     (customize-set-variable 'gdb-memory-unit ,unit-size)
-     (gdb-invalidate-memory 'update)))
-
-(def-gdb-memory-unit gdb-memory-unit-giant 8
-  "Set the unit size to giant words (eight bytes).")
-
-(def-gdb-memory-unit gdb-memory-unit-word 4
-  "Set the unit size to words (four bytes).")
-
-(def-gdb-memory-unit gdb-memory-unit-halfword 2
-  "Set the unit size to halfwords (two bytes).")
-
-(def-gdb-memory-unit gdb-memory-unit-byte 1
-  "Set the unit size to bytes.")
-
-(defmacro def-gdb-memory-show-page (name address-var &optional doc)
-  "Define a function NAME which show new address in memory buffer.
-
-The defined function switches Memory buffer to show address
-stored in ADDRESS-VAR variable.
-
-DOC is an optional documentation string."
-  `(defun ,name
-     ,(when doc doc)
-     (interactive)
-     (let ((gdb-memory-address ,address-var))
-       (gdb-invalidate-memory))))
-
-(def-gdb-memory-show-page gdb-memory-show-previous-page
-  gdb-memory-prev-page)
-
-(def-gdb-memory-show-page gdb-memory-show-next-page
-  gdb-memory-next-page)
-
-(defvar gdb-memory-unit-map
-  (let ((map (make-sparse-keymap)))
-    (define-key map [header-line down-mouse-3] 'gdb-memory-unit-menu-1)
-    map)
-  "Keymap to select units in the header line.")
-
-(defvar gdb-memory-unit-menu (make-sparse-keymap "Unit")
-  "Menu of units in the header line.")
-
-(define-key gdb-memory-unit-menu [giantwords]
-  '(menu-item "Giant words" gdb-memory-unit-giant
-              :button (:radio . (equal gdb-memory-unit 8))))
-(define-key gdb-memory-unit-menu [words]
-  '(menu-item "Words" gdb-memory-unit-word
-              :button (:radio . (equal gdb-memory-unit 4))))
-(define-key gdb-memory-unit-menu [halfwords]
-  '(menu-item "Halfwords" gdb-memory-unit-halfword
-              :button (:radio . (equal gdb-memory-unit 2))))
-(define-key gdb-memory-unit-menu [bytes]
-  '(menu-item "Bytes" gdb-memory-unit-byte
-              :button (:radio . (equal gdb-memory-unit 1))))
-
-(defun gdb-memory-unit-menu (event)
-  (interactive "@e")
-  (x-popup-menu event gdb-memory-unit-menu))
-
-(defun gdb-memory-unit-menu-1 (event)
-  (interactive "e")
-  (save-selected-window
-    (select-window (posn-window (event-start event)))
-    (let* ((selection (gdb-memory-unit-menu event))
-           (binding (and selection (lookup-key gdb-memory-unit-menu
-                                               (vector (car selection))))))
-      (if binding (call-interactively binding)))))
-
-(defvar gdb-memory-font-lock-keywords
-  '(;; <__function.name+n>
-    ("<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>" (1 font-lock-function-name-face))
-    )
-  "Font lock keywords used in `gdb-memory-mode'.")
-
-(defvar gdb-memory-header
-  '(:eval
-    (concat
-     "Start address["
-     (propertize "-"
-                  'face font-lock-warning-face
-                  'help-echo "mouse-1: decrement address"
-                  'mouse-face 'mode-line-highlight
-                  'local-map (gdb-make-header-line-mouse-map
-                              'mouse-1
-                              #'gdb-memory-show-previous-page))
-     "|"
-     (propertize "+"
-                  'face font-lock-warning-face
-                  'help-echo "mouse-1: increment address"
-                 'mouse-face 'mode-line-highlight
-                 'local-map (gdb-make-header-line-mouse-map
-                             'mouse-1
-                             #'gdb-memory-show-next-page))
-    "]: "
-    (propertize gdb-memory-address
-                 'face font-lock-warning-face
-                 'help-echo "mouse-1: set start address"
-                 'mouse-face 'mode-line-highlight
-                 'local-map (gdb-make-header-line-mouse-map
-                             'mouse-1
-                             #'gdb-memory-set-address-event))
-    "  Rows: "
-    (propertize (number-to-string gdb-memory-rows)
-                 'face font-lock-warning-face
-                 'help-echo "mouse-1: set number of columns"
-                 'mouse-face 'mode-line-highlight
-                 'local-map (gdb-make-header-line-mouse-map
-                             'mouse-1
-                             #'gdb-memory-set-rows))
-    "  Columns: "
-    (propertize (number-to-string gdb-memory-columns)
-                 'face font-lock-warning-face
-                 'help-echo "mouse-1: set number of columns"
-                 'mouse-face 'mode-line-highlight
-                 'local-map (gdb-make-header-line-mouse-map
-                             'mouse-1
-                             #'gdb-memory-set-columns))
-    "  Display Format: "
-    (propertize gdb-memory-format
-                 'face font-lock-warning-face
-                 'help-echo "mouse-3: select display format"
-                 'mouse-face 'mode-line-highlight
-                 'local-map gdb-memory-format-map)
-    "  Unit Size: "
-    (propertize (number-to-string gdb-memory-unit)
-                 'face font-lock-warning-face
-                 'help-echo "mouse-3: select unit size"
-                 'mouse-face 'mode-line-highlight
-                 'local-map gdb-memory-unit-map)))
-  "Header line used in `gdb-memory-mode'.")
-
-(define-derived-mode gdb-memory-mode gdb-parent-mode "Memory"
-  "Major mode for examining memory.
-
-\\{gdb-memory-mode-map}"
-  (setq header-line-format gdb-memory-header)
-  (set (make-local-variable 'font-lock-defaults)
-       '(gdb-memory-font-lock-keywords))
-  (run-mode-hooks 'gdb-memory-mode-hook)
-  'gdb-invalidate-memory)
-
-(defun gdb-memory-buffer-name ()
-  (concat "*memory of " (gdb-get-target-string) "*"))
-
-(def-gdb-display-buffer
-  gdb-display-memory-buffer
-  'gdb-memory-buffer
-  "Display memory contents.")
-
-(defun gdb-frame-memory-buffer ()
-  "Display memory contents in a new frame."
-  (interactive)
-  (let* ((special-display-regexps (append special-display-regexps '(".*")))
-         (special-display-frame-alist
-          `((left-fringe . 0)
-            (right-fringe . 0)
-            (width . 83)
-            ,@gdb-frame-parameters)))
-    (display-buffer (gdb-get-buffer-create 'gdb-memory-buffer))))
-
-
-;;; Disassembly view
-
-(defun gdb-disassembly-buffer-name ()
-  (gdb-current-context-buffer-name
-   (concat "disassembly of " (gdb-get-target-string))))
-
-(def-gdb-display-buffer
- gdb-display-disassembly-buffer
- 'gdb-disassembly-buffer
- "Display disassembly for current stack frame.")
-
-(def-gdb-preempt-display-buffer
-  gdb-preemptively-display-disassembly-buffer
-  'gdb-disassembly-buffer)
-
-(def-gdb-frame-for-buffer
- gdb-frame-disassembly-buffer
- 'gdb-disassembly-buffer
- "Display disassembly in a new frame.")
-
-(def-gdb-auto-update-trigger gdb-invalidate-disassembly
-  (let* ((frame (gdb-current-buffer-frame))
-         (file (bindat-get-field frame 'fullname))
-         (line (bindat-get-field frame 'line)))
-    (when file
-      (format "-data-disassemble -f %s -l %s -n -1 -- 0" file line)))
-  gdb-disassembly-handler
-  ;; We update disassembly only after we have actual frame information
-  ;; about all threads, so no there's `update' signal in this list
-  '(start update-disassembly))
-
-(def-gdb-auto-update-handler
-  gdb-disassembly-handler
-  gdb-invalidate-disassembly
-  gdb-disassembly-handler-custom
-  t)
-
-(gdb-set-buffer-rules
- 'gdb-disassembly-buffer
- 'gdb-disassembly-buffer-name
- 'gdb-disassembly-mode
- 'gdb-invalidate-disassembly)
-
-(defvar gdb-disassembly-font-lock-keywords
-  '(;; <__function.name+n>
-    ("<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>"
-     (1 font-lock-function-name-face))
-    ;; 0xNNNNNNNN <__function.name+n>: opcode
-    ("^0x[0-9a-f]+ \\(<\\(\\(\\sw\\|[_.]\\)+\\)\\+[0-9]+>\\)?:[ \t]+\\(\\sw+\\)"
-     (4 font-lock-keyword-face))
-    ;; %register(at least i386)
-    ("%\\sw+" . font-lock-variable-name-face)
-    ("^\\(Dump of assembler code for function\\) \\(.+\\):"
-     (1 font-lock-comment-face)
-     (2 font-lock-function-name-face))
-    ("^\\(End of assembler dump\\.\\)" . font-lock-comment-face))
-  "Font lock keywords used in `gdb-disassembly-mode'.")
-
-(defvar gdb-disassembly-mode-map
-  ;; TODO
-  (let ((map (make-sparse-keymap)))
-    (suppress-keymap map)
-    (define-key map "q" 'kill-this-buffer)
-     map))
-
-(define-derived-mode gdb-disassembly-mode gdb-parent-mode "Disassembly"
-  "Major mode for GDB disassembly information.
-
-\\{gdb-disassembly-mode-map}"
-  ;; TODO Rename overlay variable for disassembly mode
-  (add-to-list 'overlay-arrow-variable-list 'gdb-disassembly-position)
-  (setq fringes-outside-margins t)
-  (set (make-local-variable 'gdb-disassembly-position) (make-marker))
-  (set (make-local-variable 'font-lock-defaults)
-       '(gdb-disassembly-font-lock-keywords))
-  (run-mode-hooks 'gdb-disassembly-mode-hook)
-  'gdb-invalidate-disassembly)
-
-(defun gdb-disassembly-handler-custom ()
-  (let* ((instructions (bindat-get-field (gdb-json-partial-output) 'asm_insns))
-         (address (bindat-get-field (gdb-current-buffer-frame) 'addr))
-         (pos 1)
-         (table (make-gdb-table))
-         (marked-line nil))
-      (dolist (instr instructions)
-      (gdb-table-add-row table
-       (list
-        (bindat-get-field instr 'address)
-        (apply 'format `("<%s+%s>:" ,@(gdb-get-many-fields instr 'func-name 'offset)))
-        (bindat-get-field instr 'inst)))
-      (when (string-equal (bindat-get-field instr 'address)
-                          address)
-        (progn
-          (setq marked-line (length (gdb-table-rows table)))
-          (setq fringe-indicator-alist
-                (if (string-equal gdb-frame-number "0")
-                    nil
-                  '((overlay-arrow . hollow-right-triangle)))))))
-      (insert (gdb-table-string table " "))
-      (gdb-disassembly-place-breakpoints)
-      ;; Mark current position with overlay arrow and scroll window to
-      ;; that point
-      (when marked-line
-        (let ((window (get-buffer-window (current-buffer) 0)))
-          (set-window-point window (gdb-mark-line marked-line gdb-disassembly-position))))
-      (setq mode-name
-            (gdb-current-context-mode-name
-            (concat "Disassembly: "
-                    (bindat-get-field (gdb-current-buffer-frame) 'func))))))
-
-(defun gdb-disassembly-place-breakpoints ()
-  (gdb-remove-breakpoint-icons (point-min) (point-max))
-  (dolist (breakpoint gdb-breakpoints-list)
-    (let* ((breakpoint (cdr breakpoint))
-           (bptno (bindat-get-field breakpoint 'number))
-           (flag (bindat-get-field breakpoint 'enabled))
-           (address (bindat-get-field breakpoint 'addr)))
-      (save-excursion
-        (goto-char (point-min))
-        (if (re-search-forward (concat "^" address) nil t)
-            (gdb-put-breakpoint-icon (string-equal flag "y") bptno))))))
-
-
-(defvar gdb-breakpoints-header
-  (list
-   (gdb-propertize-header "Breakpoints" gdb-breakpoints-buffer
-                          nil nil mode-line)
-   " "
-   (gdb-propertize-header "Threads" gdb-threads-buffer
-                          "mouse-1: select" mode-line-highlight mode-line-inactive)))
-
-;;; Breakpoints view
-(define-derived-mode gdb-breakpoints-mode gdb-parent-mode "Breakpoints"
-  "Major mode for gdb breakpoints.
-
-\\{gdb-breakpoints-mode-map}"
-  (setq header-line-format gdb-breakpoints-header)
-  (run-mode-hooks 'gdb-breakpoints-mode-hook)
-  'gdb-invalidate-breakpoints)
-
-(defun gdb-toggle-breakpoint ()
-  "Enable/disable breakpoint at current line of breakpoints buffer."
-  (interactive)
-  (save-excursion
-    (beginning-of-line)
-    (let ((breakpoint (get-text-property (point) 'gdb-breakpoint)))
-      (if breakpoint
-          (gud-basic-call
-           (concat (if (string-equal "y" (bindat-get-field breakpoint 'enabled))
-                       "-break-disable "
-                     "-break-enable ")
-                   (bindat-get-field breakpoint 'number)))
-        (error "Not recognized as break/watchpoint line")))))
-
-(defun gdb-delete-breakpoint ()
-  "Delete the breakpoint at current line of breakpoints buffer."
-  (interactive)
-  (save-excursion
-  (beginning-of-line)
-  (let ((breakpoint (get-text-property (point) 'gdb-breakpoint)))
-    (if breakpoint
-        (gud-basic-call (concat "-break-delete " (bindat-get-field breakpoint 'number)))
-      (error "Not recognized as break/watchpoint line")))))
-
-(defun gdb-goto-breakpoint (&optional event)
-  "Go to the location of breakpoint at current line of
-breakpoints buffer."
-  (interactive (list last-input-event))
-  (if event (posn-set-point (event-end event)))
-  ;; Hack to stop gdb-goto-breakpoint displaying in GUD buffer.
-  (let ((window (get-buffer-window gud-comint-buffer)))
-    (if window (save-selected-window  (select-window window))))
-  (save-excursion
-  (beginning-of-line)
-  (let ((breakpoint (get-text-property (point) 'gdb-breakpoint)))
-    (if breakpoint
-        (let ((bptno (bindat-get-field breakpoint 'number))
-              (file  (bindat-get-field breakpoint 'fullname))
-              (line  (bindat-get-field breakpoint 'line)))
-          (save-selected-window
-            (let* ((buffer (find-file-noselect
-                         (if (file-exists-p file) file
-                           (cdr (assoc bptno gdb-location-alist)))))
-                   (window (or (gdb-display-source-buffer buffer)
-                               (display-buffer buffer))))
-              (setq gdb-source-window window)
-              (with-current-buffer buffer
-                (goto-char (point-min))
-                (forward-line (1- (string-to-number line)))
-                (set-window-point window (point))))))
-      (error "Not recognized as break/watchpoint line")))))
-
-
-;; Frames buffer.  This displays a perpetually correct bactrack trace.
-;;
-(def-gdb-trigger-and-handler
-  gdb-invalidate-frames (gdb-current-context-command "-stack-list-frames")
-  gdb-stack-list-frames-handler gdb-stack-list-frames-custom
-  '(start update))
-
-(gdb-set-buffer-rules
- 'gdb-stack-buffer
- 'gdb-stack-buffer-name
- 'gdb-frames-mode
- 'gdb-invalidate-frames)
-
-(defun gdb-frame-location (frame)
-  "Return \" of file:line\" or \" of library\" for structure FRAME.
-
-FRAME must have either \"file\" and \"line\" members or \"from\"
-member."
-  (let ((file (bindat-get-field frame 'file))
-        (line (bindat-get-field frame 'line))
-        (from (bindat-get-field frame 'from)))
-    (let ((res (or (and file line (concat file ":" line))
-                   from)))
-      (if res (concat " of " res) ""))))
-
-(defun gdb-stack-list-frames-custom ()
-  (let ((stack (bindat-get-field (gdb-json-partial-output "frame") 'stack))
-        (table (make-gdb-table)))
-    (set-marker gdb-stack-position nil)
-         (dolist (frame stack)
-           (gdb-table-add-row table
-            (list
-             (bindat-get-field frame 'level)
-             "in"
-             (concat
-              (bindat-get-field frame 'func)
-              (if gdb-stack-buffer-locations
-                  (gdb-frame-location frame) "")
-              (if gdb-stack-buffer-addresses
-                  (concat " at " (bindat-get-field frame 'addr)) "")))
-            `(mouse-face highlight
-              help-echo "mouse-2, RET: Select frame"
-              gdb-frame ,frame)))
-         (insert (gdb-table-string table " ")))
-  (when (and gdb-frame-number
-             (gdb-buffer-shows-main-thread-p))
-    (gdb-mark-line (1+ (string-to-number gdb-frame-number))
-                   gdb-stack-position))
-  (setq mode-name
-        (gdb-current-context-mode-name "Frames")))
-
-(defun gdb-stack-buffer-name ()
-  (gdb-current-context-buffer-name
-   (concat "stack frames of " (gdb-get-target-string))))
-
-(def-gdb-display-buffer
- gdb-display-stack-buffer
- 'gdb-stack-buffer
- "Display backtrace of current stack.")
-
-(def-gdb-preempt-display-buffer
-  gdb-preemptively-display-stack-buffer
-  'gdb-stack-buffer nil t)
-
-(def-gdb-frame-for-buffer
- gdb-frame-stack-buffer
- 'gdb-stack-buffer
- "Display backtrace of current stack in a new frame.")
-
-(defvar gdb-frames-mode-map
-  (let ((map (make-sparse-keymap)))
-    (suppress-keymap map)
-    (define-key map "q" 'kill-this-buffer)
-    (define-key map "\r" 'gdb-select-frame)
-    (define-key map [mouse-2] 'gdb-select-frame)
-    (define-key map [follow-link] 'mouse-face)
-    map))
-
-(defvar gdb-frames-font-lock-keywords
-  '(("in \\([^ ]+\\)"  (1 font-lock-function-name-face)))
-  "Font lock keywords used in `gdb-frames-mode'.")
-
-(define-derived-mode gdb-frames-mode gdb-parent-mode "Frames"
-  "Major mode for gdb call stack.
-
-\\{gdb-frames-mode-map}"
-  (setq gdb-stack-position (make-marker))
-  (add-to-list 'overlay-arrow-variable-list 'gdb-stack-position)
-  (setq truncate-lines t)  ;; Make it easier to see overlay arrow.
-  (set (make-local-variable 'font-lock-defaults)
-       '(gdb-frames-font-lock-keywords))
-  (run-mode-hooks 'gdb-frames-mode-hook)
-  'gdb-invalidate-frames)
-
-(defun gdb-select-frame (&optional event)
-  "Select the frame and display the relevant source."
-  (interactive (list last-input-event))
-  (if event (posn-set-point (event-end event)))
-  (let ((frame (get-text-property (point) 'gdb-frame)))
-    (if frame
-        (if (gdb-buffer-shows-main-thread-p)
-            (let ((new-level (bindat-get-field frame 'level)))
-              (setq gdb-frame-number new-level)
-              (gdb-input (list (concat "-stack-select-frame " new-level) 'ignore))
-              (gdb-update))
-          (error "Could not select frame for non-current thread"))
-      (error "Not recognized as frame line"))))
-
-
-;; Locals buffer.
-;; uses "-stack-list-locals --simple-values". Needs GDB 6.1 onwards.
-(def-gdb-trigger-and-handler
-  gdb-invalidate-locals
-  (concat (gdb-current-context-command "-stack-list-locals") " --simple-values")
-  gdb-locals-handler gdb-locals-handler-custom
-  '(start update))
-
-(gdb-set-buffer-rules
- 'gdb-locals-buffer
- 'gdb-locals-buffer-name
- 'gdb-locals-mode
- 'gdb-invalidate-locals)
-
-(defvar gdb-locals-watch-map
-  (let ((map (make-sparse-keymap)))
-    (suppress-keymap map)
-    (define-key map "\r" 'gud-watch)
-    (define-key map [mouse-2] 'gud-watch)
-    map)
- "Keymap to create watch expression of a complex data type local variable.")
-
-(defvar gdb-edit-locals-map-1
-  (let ((map (make-sparse-keymap)))
-    (suppress-keymap map)
-    (define-key map "\r" 'gdb-edit-locals-value)
-    (define-key map [mouse-2] 'gdb-edit-locals-value)
-    map)
- "Keymap to edit value of a simple data type local variable.")
-
-(defun gdb-edit-locals-value (&optional event)
-  "Assign a value to a variable displayed in the locals buffer."
-  (interactive (list last-input-event))
-  (save-excursion
-    (if event (posn-set-point (event-end event)))
-    (beginning-of-line)
-    (let* ((var (bindat-get-field
-                 (get-text-property (point) 'gdb-local-variable) 'name))
-           (value (read-string (format "New value (%s): " var))))
-      (gud-basic-call
-       (concat  "-gdb-set variable " var " = " value)))))
-
-;; Dont display values of arrays or structures.
-;; These can be expanded using gud-watch.
-(defun gdb-locals-handler-custom ()
-  (let ((locals-list (bindat-get-field (gdb-json-partial-output) 'locals))
-        (table (make-gdb-table)))
-    (dolist (local locals-list)
-      (let ((name (bindat-get-field local 'name))
-            (value (bindat-get-field local 'value))
-            (type (bindat-get-field local 'type)))
-        (if (or (not value)
-                (string-match "\\0x" value))
-            (add-text-properties 0 (length name)
-                            `(mouse-face highlight
-                              help-echo "mouse-2: create watch expression"
-                              local-map ,gdb-locals-watch-map)
-                            name)
-          (add-text-properties 0 (length value)
-                               `(mouse-face highlight
-                                help-echo "mouse-2: edit value"
-                                local-map ,gdb-edit-locals-map-1)
-                               value))
-        (gdb-table-add-row
-         table
-         (list
-          (propertize type 'font-lock-face font-lock-type-face)
-          (propertize name 'font-lock-face font-lock-variable-name-face)
-          value)
-         `(gdb-local-variable ,local))))
-    (insert (gdb-table-string table " "))
-    (setq mode-name
-          (gdb-current-context-mode-name
-          (concat "Locals: " (bindat-get-field (gdb-current-buffer-frame) 'func))))))
-
-(defvar gdb-locals-header
-  (list
-   (gdb-propertize-header "Locals" gdb-locals-buffer
-                          nil nil mode-line)
-   " "
-   (gdb-propertize-header "Registers" gdb-registers-buffer
-                          "mouse-1: select" mode-line-highlight mode-line-inactive)))
-
-(defvar gdb-locals-mode-map
-  (let ((map (make-sparse-keymap)))
-    (suppress-keymap map)
-    (define-key map "q" 'kill-this-buffer)
-    (define-key map "\t" '(lambda ()
-                            (interactive)
-                            (gdb-set-window-buffer
-                             (gdb-get-buffer-create
-                              'gdb-registers-buffer
-                              gdb-thread-number) t)))
-     map))
-
-(define-derived-mode gdb-locals-mode gdb-parent-mode "Locals"
-  "Major mode for gdb locals.
-
-\\{gdb-locals-mode-map}"
-  (setq header-line-format gdb-locals-header)
-  (run-mode-hooks 'gdb-locals-mode-hook)
-  'gdb-invalidate-locals)
-
-(defun gdb-locals-buffer-name ()
-  (gdb-current-context-buffer-name
-   (concat "locals of " (gdb-get-target-string))))
-
-(def-gdb-display-buffer
- gdb-display-locals-buffer
- 'gdb-locals-buffer
- "Display local variables of current stack and their values.")
-
-(def-gdb-preempt-display-buffer
- gdb-preemptively-display-locals-buffer
- 'gdb-locals-buffer nil t)
-
-(def-gdb-frame-for-buffer
- gdb-frame-locals-buffer
- 'gdb-locals-buffer
- "Display local variables of current stack and their values in a new frame.")
-
-
-;; Registers buffer.
-
-(def-gdb-trigger-and-handler
-  gdb-invalidate-registers
-  (concat (gdb-current-context-command "-data-list-register-values") " x")
-  gdb-registers-handler
-  gdb-registers-handler-custom
-  '(start update))
-
-(gdb-set-buffer-rules
- 'gdb-registers-buffer
- 'gdb-registers-buffer-name
- 'gdb-registers-mode
- 'gdb-invalidate-registers)
-
-(defun gdb-registers-handler-custom ()
-  (when gdb-register-names
-    (let ((register-values (bindat-get-field (gdb-json-partial-output) 'register-values))
-          (table (make-gdb-table)))
-      (dolist (register register-values)
-        (let* ((register-number (bindat-get-field register 'number))
-               (value (bindat-get-field register 'value))
-               (register-name (nth (string-to-number register-number)
-                                   gdb-register-names)))
-          (gdb-table-add-row
-           table
-           (list
-            (propertize register-name 'font-lock-face font-lock-variable-name-face)
-            (if (member register-number gdb-changed-registers)
-                (propertize value 'font-lock-face font-lock-warning-face)
-              value))
-           `(mouse-face highlight
-                        help-echo "mouse-2: edit value"
-                        gdb-register-name ,register-name))))
-      (insert (gdb-table-string table " ")))
-    (setq mode-name
-          (gdb-current-context-mode-name "Registers"))))
-
-(defun gdb-edit-register-value (&optional event)
-  "Assign a value to a register displayed in the registers buffer."
-  (interactive (list last-input-event))
-  (save-excursion
-    (if event (posn-set-point (event-end event)))
-    (beginning-of-line)
-    (let* ((var (bindat-get-field
-                 (get-text-property (point) 'gdb-register-name)))
-           (value (read-string (format "New value (%s): " var))))
-      (gud-basic-call
-       (concat  "-gdb-set variable $" var " = " value)))))
-
-(defvar gdb-registers-mode-map
-  (let ((map (make-sparse-keymap)))
-    (suppress-keymap map)
-    (define-key map "\r" 'gdb-edit-register-value)
-    (define-key map [mouse-2] 'gdb-edit-register-value)
-    (define-key map "q" 'kill-this-buffer)
-    (define-key map "\t" '(lambda ()
-                            (interactive)
-                            (gdb-set-window-buffer
-                             (gdb-get-buffer-create
-                              'gdb-locals-buffer
-                              gdb-thread-number) t)))
-    map))
-
-(defvar gdb-registers-header
-  (list
-   (gdb-propertize-header "Locals" gdb-locals-buffer
-                          "mouse-1: select" mode-line-highlight mode-line-inactive)
-   " "
-   (gdb-propertize-header "Registers" gdb-registers-buffer
-                          nil nil mode-line)))
-
-(define-derived-mode gdb-registers-mode gdb-parent-mode "Registers"
-  "Major mode for gdb registers.
-
-\\{gdb-registers-mode-map}"
-  (setq header-line-format gdb-registers-header)
-  (run-mode-hooks 'gdb-registers-mode-hook)
-  'gdb-invalidate-registers)
-
-(defun gdb-registers-buffer-name ()
-  (gdb-current-context-buffer-name
-   (concat "registers of " (gdb-get-target-string))))
-
-(def-gdb-display-buffer
- gdb-display-registers-buffer
- 'gdb-registers-buffer
- "Display integer register contents.")
-
-(def-gdb-preempt-display-buffer
-  gdb-preemptively-display-registers-buffer
- 'gdb-registers-buffer nil t)
-
-(def-gdb-frame-for-buffer
- gdb-frame-registers-buffer
- 'gdb-registers-buffer
-  "Display integer register contents in a new frame.")
-
-;; Needs GDB 6.4 onwards (used to fail with no stack).
-(defun gdb-get-changed-registers ()
-  (if (and (gdb-get-buffer 'gdb-registers-buffer)
-           (not (gdb-pending-p 'gdb-get-changed-registers)))
-      (progn
-        (gdb-input
-         (list
-          "-data-list-changed-registers"
-          'gdb-changed-registers-handler))
-        (gdb-add-pending 'gdb-get-changed-registers))))
-
-(defun gdb-changed-registers-handler ()
-  (gdb-delete-pending 'gdb-get-changed-registers)
-  (setq gdb-changed-registers nil)
-  (dolist (register-number (bindat-get-field (gdb-json-partial-output) 'changed-registers))
-    (push register-number gdb-changed-registers)))
-
-(defun gdb-register-names-handler ()
-  ;; Don't use gdb-pending-triggers because this handler is called
-  ;; only once (in gdb-init-1)
-  (setq gdb-register-names nil)
-  (dolist (register-name (bindat-get-field (gdb-json-partial-output) 'register-names))
-    (push register-name gdb-register-names))
-  (setq gdb-register-names (reverse gdb-register-names)))
-
-
-(defun gdb-get-source-file-list ()
-  "Create list of source files for current GDB session.
-If buffers already exist for any of these files, gud-minor-mode
-is set in them."
-  (goto-char (point-min))
-  (while (re-search-forward gdb-source-file-regexp nil t)
-    (push (match-string 1) gdb-source-file-list))
-  (dolist (buffer (buffer-list))
-    (with-current-buffer buffer
-      (when (member buffer-file-name gdb-source-file-list)
-        (gdb-init-buffer))))
-  (gdb-force-mode-line-update
-   (propertize "ready" 'face font-lock-variable-name-face)))
-
-(defun gdb-get-main-selected-frame ()
-  "Trigger for `gdb-frame-handler' which uses main current
-thread. Called from `gdb-update'."
-  (if (not (gdb-pending-p 'gdb-get-main-selected-frame))
-      (progn
-        (gdb-input
-         (list (gdb-current-context-command "-stack-info-frame") 'gdb-frame-handler))
-        (gdb-add-pending 'gdb-get-main-selected-frame))))
-
-(defun gdb-frame-handler ()
-  "Sets `gdb-selected-frame' and `gdb-selected-file' to show
-overlay arrow in source buffer."
-  (gdb-delete-pending 'gdb-get-main-selected-frame)
-  (let ((frame (bindat-get-field (gdb-json-partial-output) 'frame)))
-    (when frame
-      (setq gdb-selected-frame (bindat-get-field frame 'func))
-      (setq gdb-selected-file (bindat-get-field frame 'fullname))
-      (setq gdb-frame-number (bindat-get-field frame 'level))
-      (setq gdb-frame-address (bindat-get-field frame 'addr))
-      (let ((line (bindat-get-field frame 'line)))
-        (setq gdb-selected-line (and line (string-to-number line)))
-        (when (and gdb-selected-file gdb-selected-line)
-          (setq gud-last-frame (cons gdb-selected-file gdb-selected-line))
-          (gud-display-frame)))
-      (if gud-overlay-arrow-position
-          (let ((buffer (marker-buffer gud-overlay-arrow-position))
-                (position (marker-position gud-overlay-arrow-position)))
-            (when buffer
-              (with-current-buffer buffer
-                (setq fringe-indicator-alist
-                      (if (string-equal gdb-frame-number "0")
-                          nil
-                        '((overlay-arrow . hollow-right-triangle))))
-                (setq gud-overlay-arrow-position (make-marker))
-                (set-marker gud-overlay-arrow-position position))))))))
-
-(defvar gdb-prompt-name-regexp "value=\"\\(.*?\\)\"")
-
-(defun gdb-get-prompt ()
-  "Find prompt for GDB session."
-  (goto-char (point-min))
-  (setq gdb-prompt-name nil)
-  (re-search-forward gdb-prompt-name-regexp nil t)
-  (setq gdb-prompt-name (match-string 1))
-  ;; Insert first prompt.
-  (setq gdb-filter-output (concat gdb-filter-output gdb-prompt-name)))
-
-;;;; Window management
-(defun gdb-display-buffer (buf dedicated &optional frame)
-  "Show buffer BUF.
-
-If BUF is already displayed in some window, show it, deiconifying
-the frame if necessary. Otherwise, find least recently used
-window and show BUF there, if the window is not used for GDB
-already, in which case that window is splitted first."
-  (let ((answer (get-buffer-window buf (or frame 0))))
-    (if answer
-        (display-buffer buf nil (or frame 0)) ;Deiconify the frame if necessary.
-      (let ((window (get-lru-window)))
-        (if (eq (buffer-local-value 'gud-minor-mode (window-buffer window))
-                  'gdbmi)
-            (let* ((largest (get-largest-window))
-                   (cur-size (window-height largest)))
-              (setq answer (split-window largest))
-              (set-window-buffer answer buf)
-              (set-window-dedicated-p answer dedicated)
-              answer)
-          (set-window-buffer window buf)
-          window)))))
-
-(defun gdb-preempt-existing-or-display-buffer (buf &optional split-horizontal)
-  "Find window displaying a buffer with the same
-`gdb-buffer-type' as BUF and show BUF there. If no such window
-exists, just call `gdb-display-buffer' for BUF. If the window
-found is already dedicated, split window according to
-SPLIT-HORIZONTAL and show BUF in the new window."
-  (if buf
-      (when (not (get-buffer-window buf))
-        (let* ((buf-type (gdb-buffer-type buf))
-               (existing-window
-                (get-window-with-predicate
-                 #'(lambda (w)
-                     (and (eq buf-type
-                              (gdb-buffer-type (window-buffer w)))
-                          (not (window-dedicated-p w)))))))
-          (if existing-window
-              (set-window-buffer existing-window buf)
-            (let ((dedicated-window
-                   (get-window-with-predicate
-                    #'(lambda (w)
-                        (eq buf-type
-                            (gdb-buffer-type (window-buffer w)))))))
-              (if dedicated-window
-                  (set-window-buffer
-                   (split-window dedicated-window nil split-horizontal) buf)
-                (gdb-display-buffer buf t))))))
-    (error "Null buffer")))
-
-;;; Shared keymap initialization:
-
-(let ((menu (make-sparse-keymap "GDB-Windows")))
-  (define-key gud-menu-map [displays]
-    `(menu-item "GDB-Windows" ,menu
-                :visible (eq gud-minor-mode 'gdbmi)))
-  (define-key menu [gdb] '("Gdb" . gdb-display-gdb-buffer))
-  (define-key menu [threads] '("Threads" . gdb-display-threads-buffer))
-  (define-key menu [memory] '("Memory" . gdb-display-memory-buffer))
-  (define-key menu [disassembly]
-    '("Disassembly" . gdb-display-disassembly-buffer))
-  (define-key menu [registers] '("Registers" . gdb-display-registers-buffer))
-  (define-key menu [inferior]
-    '("IO" . gdb-display-io-buffer))
-  (define-key menu [locals] '("Locals" . gdb-display-locals-buffer))
-  (define-key menu [frames] '("Stack" . gdb-display-stack-buffer))
-  (define-key menu [breakpoints]
-    '("Breakpoints" . gdb-display-breakpoints-buffer)))
-
-(let ((menu (make-sparse-keymap "GDB-Frames")))
-  (define-key gud-menu-map [frames]
-    `(menu-item "GDB-Frames" ,menu
-                :visible (eq gud-minor-mode 'gdbmi)))
-  (define-key menu [gdb] '("Gdb" . gdb-frame-gdb-buffer))
-  (define-key menu [threads] '("Threads" . gdb-frame-threads-buffer))
-  (define-key menu [memory] '("Memory" . gdb-frame-memory-buffer))
-  (define-key menu [disassembly] '("Disassembly" . gdb-frame-disassembly-buffer))
-  (define-key menu [registers] '("Registers" . gdb-frame-registers-buffer))
-  (define-key menu [inferior]
-    '("IO" . gdb-frame-io-buffer))
-  (define-key menu [locals] '("Locals" . gdb-frame-locals-buffer))
-  (define-key menu [frames] '("Stack" . gdb-frame-stack-buffer))
-  (define-key menu [breakpoints]
-    '("Breakpoints" . gdb-frame-breakpoints-buffer)))
-
-(let ((menu (make-sparse-keymap "GDB-MI")))
-  (define-key menu [gdb-customize]
-  '(menu-item "Customize" (lambda () (interactive) (customize-group 'gdb))
-              :help "Customize Gdb Graphical Mode options."))
-  (define-key menu [gdb-many-windows]
-  '(menu-item "Display Other Windows" gdb-many-windows
-              :help "Toggle display of locals, stack and breakpoint information"
-              :button (:toggle . gdb-many-windows)))
-  (define-key menu [gdb-restore-windows]
-  '(menu-item "Restore Window Layout" gdb-restore-windows
-              :help "Restore standard layout for debug session."))
-  (define-key menu [sep1]
-    '(menu-item "--"))
-  (define-key menu [all-threads]
-    '(menu-item "GUD controls all threads"
-                (lambda ()
-                  (interactive)
-                  (setq gdb-gud-control-all-threads t))
-                :help "GUD start/stop commands apply to all threads"
-                :button (:radio . gdb-gud-control-all-threads)))
-  (define-key menu [current-thread]
-    '(menu-item "GUD controls current thread"
-                (lambda ()
-                  (interactive)
-                  (setq gdb-gud-control-all-threads nil))
-                :help "GUD start/stop commands apply to current thread only"
-                :button (:radio . (not gdb-gud-control-all-threads))))
-  (define-key menu [sep2]
-    '(menu-item "--"))
-  (define-key menu [gdb-customize-reasons]
-    '(menu-item "Customize switching..."
-                (lambda ()
-                  (interactive)
-                  (customize-option 'gdb-switch-reasons))))
-  (define-key menu [gdb-switch-when-another-stopped]
-    (menu-bar-make-toggle gdb-toggle-switch-when-another-stopped gdb-switch-when-another-stopped
-                          "Automatically switch to stopped thread"
-                          "GDB thread switching %s"
-                          "Switch to stopped thread"))
-  (define-key gud-menu-map [mi]
-    `(menu-item "GDB-MI" ,menu :visible (eq gud-minor-mode 'gdbmi))))
-
-;; TODO Fit these into tool-bar-local-item-from-menu call in gud.el.
-;; GDB-MI menu will need to be moved to gud.el. We can't use
-;; tool-bar-local-item-from-menu here because it appends new buttons
-;; to toolbar from right to left while we want our A/T throttle to
-;; show up right before Run button.
-(define-key-after gud-tool-bar-map [all-threads]
-  '(menu-item "Switch to non-stop/A mode" gdb-control-all-threads
-              :image (find-image '((:type xpm :file "gud/thread.xpm")))
-              :visible (and (eq gud-minor-mode 'gdbmi)
-                            gdb-non-stop
-                            (not gdb-gud-control-all-threads)))
-  'run)
-
-(define-key-after gud-tool-bar-map [current-thread]
-  '(menu-item "Switch to non-stop/T mode" gdb-control-current-thread
-              :image (find-image '((:type xpm :file "gud/all.xpm")))
-              :visible (and (eq gud-minor-mode 'gdbmi)
-                            gdb-non-stop
-                            gdb-gud-control-all-threads))
-  'all-threads)
-
-(defun gdb-frame-gdb-buffer ()
-  "Display GUD buffer in a new frame."
-  (interactive)
-  (let ((special-display-regexps (append special-display-regexps '(".*")))
-        (special-display-frame-alist
-         (remove '(menu-bar-lines) (remove '(tool-bar-lines)
-                                           gdb-frame-parameters)))
-        (same-window-regexps nil))
-    (display-buffer gud-comint-buffer)))
-
-(defun gdb-display-gdb-buffer ()
-  "Display GUD buffer."
-  (interactive)
-  (let ((same-window-regexps nil))
-    (select-window (display-buffer gud-comint-buffer nil 0))))
-
-(defun gdb-set-window-buffer (name &optional ignore-dedicated)
-  "Set buffer of selected window to NAME and dedicate window.
-
-When IGNORE-DEDICATED is non-nil, buffer is set even if selected
-window is dedicated."
-  (when ignore-dedicated
-    (set-window-dedicated-p (selected-window) nil))
-  (set-window-buffer (selected-window) (get-buffer name))
-  (set-window-dedicated-p (selected-window) t))
-
-(defun gdb-setup-windows ()
-  "Layout the window pattern for `gdb-many-windows'."
-  (gdb-display-locals-buffer)
-  (gdb-display-stack-buffer)
-  (delete-other-windows)
-  (gdb-display-breakpoints-buffer)
-  (delete-other-windows)
-  ; Don't dedicate.
-  (pop-to-buffer gud-comint-buffer)
-  (split-window nil ( / ( * (window-height) 3) 4))
-  (split-window nil ( / (window-height) 3))
-  (split-window-horizontally)
-  (other-window 1)
-  (gdb-set-window-buffer (gdb-locals-buffer-name))
-  (other-window 1)
-  (switch-to-buffer
-       (if gud-last-last-frame
-           (gud-find-file (car gud-last-last-frame))
-         (if gdb-main-file
-             (gud-find-file gdb-main-file)
-           ;; Put buffer list in window if we
-           ;; can't find a source file.
-           (list-buffers-noselect))))
-  (setq gdb-source-window (selected-window))
-  (split-window-horizontally)
-  (other-window 1)
-  (gdb-set-window-buffer
-   (gdb-get-buffer-create 'gdb-inferior-io))
-  (other-window 1)
-  (gdb-set-window-buffer (gdb-stack-buffer-name))
-  (split-window-horizontally)
-  (other-window 1)
-  (gdb-set-window-buffer (if gdb-show-threads-by-default
-                             (gdb-threads-buffer-name)
-                           (gdb-breakpoints-buffer-name)))
-  (other-window 1))
-
-(defcustom gdb-many-windows nil
-  "If nil just pop up the GUD buffer unless `gdb-show-main' is t.
-In this case it starts with two windows: one displaying the GUD
-buffer and the other with the source file with the main routine
-of the debugged program.  Non-nil means display the layout shown for
-`gdb'."
-  :type 'boolean
-  :group 'gdb
-  :version "22.1")
-
-(defun gdb-many-windows (arg)
-  "Toggle the number of windows in the basic arrangement.
-With arg, display additional buffers iff arg is positive."
-  (interactive "P")
-  (setq gdb-many-windows
-        (if (null arg)
-            (not gdb-many-windows)
-          (> (prefix-numeric-value arg) 0)))
-  (message (format "Display of other windows %sabled"
-                   (if gdb-many-windows "en" "dis")))
-  (if (and gud-comint-buffer
-           (buffer-name gud-comint-buffer))
-      (condition-case nil
-          (gdb-restore-windows)
-        (error nil))))
-
-(defun gdb-restore-windows ()
-  "Restore the basic arrangement of windows used by gdb.
-This arrangement depends on the value of `gdb-many-windows'."
-  (interactive)
-  (pop-to-buffer gud-comint-buffer)     ;Select the right window and frame.
-    (delete-other-windows)
-  (if gdb-many-windows
-      (gdb-setup-windows)
-    (when (or gud-last-last-frame gdb-show-main)
-      (split-window)
-      (other-window 1)
-      (switch-to-buffer
-       (if gud-last-last-frame
-           (gud-find-file (car gud-last-last-frame))
-         (gud-find-file gdb-main-file)))
-      (setq gdb-source-window (selected-window))
-      (other-window 1))))
-
-(defun gdb-reset ()
-  "Exit a debugging session cleanly.
-Kills the gdb buffers, and resets variables and the source buffers."
-  (dolist (buffer (buffer-list))
-    (unless (eq buffer gud-comint-buffer)
-      (with-current-buffer buffer
-        (if (eq gud-minor-mode 'gdbmi)
-            (if (string-match "\\` ?\\*.+\\*\\'" (buffer-name))
-                (kill-buffer nil)
-              (gdb-remove-breakpoint-icons (point-min) (point-max) t)
-              (setq gud-minor-mode nil)
-              (kill-local-variable 'tool-bar-map)
-              (kill-local-variable 'gdb-define-alist))))))
-  (setq gdb-disassembly-position nil)
-  (setq overlay-arrow-variable-list
-        (delq 'gdb-disassembly-position overlay-arrow-variable-list))
-  (setq fringe-indicator-alist '((overlay-arrow . right-triangle)))
-  (setq gdb-stack-position nil)
-  (setq overlay-arrow-variable-list
-        (delq 'gdb-stack-position overlay-arrow-variable-list))
-  (setq gdb-thread-position nil)
-  (setq overlay-arrow-variable-list
-        (delq 'gdb-thread-position overlay-arrow-variable-list))
-  (if (boundp 'speedbar-frame) (speedbar-timer-fn))
-  (setq gud-running nil)
-  (setq gdb-active-process nil)
-  (remove-hook 'after-save-hook 'gdb-create-define-alist t))
-
-(defun gdb-get-source-file ()
-  "Find the source file where the program starts and display it with related
-buffers, if required."
-  (goto-char (point-min))
-  (if (re-search-forward gdb-source-file-regexp nil t)
-      (setq gdb-main-file (match-string 1)))
- (if gdb-many-windows
-      (gdb-setup-windows)
-   (gdb-get-buffer-create 'gdb-breakpoints-buffer)
-   (if gdb-show-main
-       (let ((pop-up-windows t))
-         (display-buffer (gud-find-file gdb-main-file))))))
-
-;;from put-image
-(defun gdb-put-string (putstring pos &optional dprop &rest sprops)
-  "Put string PUTSTRING in front of POS in the current buffer.
-PUTSTRING is displayed by putting an overlay into the current buffer with a
-`before-string' string that has a `display' property whose value is
-PUTSTRING."
-  (let ((string (make-string 1 ?x))
-        (buffer (current-buffer)))
-    (setq putstring (copy-sequence putstring))
-    (let ((overlay (make-overlay pos pos buffer))
-          (prop (or dprop
-                    (list (list 'margin 'left-margin) putstring))))
-      (put-text-property 0 1 'display prop string)
-      (if sprops
-          (add-text-properties 0 1 sprops string))
-      (overlay-put overlay 'put-break t)
-      (overlay-put overlay 'before-string string))))
-
-;;from remove-images
-(defun gdb-remove-strings (start end &optional buffer)
-  "Remove strings between START and END in BUFFER.
-Remove only strings that were put in BUFFER with calls to `gdb-put-string'.
-BUFFER nil or omitted means use the current buffer."
-  (unless buffer
-    (setq buffer (current-buffer)))
-  (dolist (overlay (overlays-in start end))
-    (when (overlay-get overlay 'put-break)
-          (delete-overlay overlay))))
-
-(defun gdb-put-breakpoint-icon (enabled bptno &optional line)
-  (let* ((posns (gdb-line-posns (or line (line-number-at-pos))))
-         (start (- (car posns) 1))
-         (end (+ (cdr posns) 1))
-         (putstring (if enabled "B" "b"))
-         (source-window (get-buffer-window (current-buffer) 0)))
-    (add-text-properties
-     0 1 '(help-echo "mouse-1: clear bkpt, mouse-3: enable/disable bkpt")
-     putstring)
-    (if enabled
-        (add-text-properties
-         0 1 `(gdb-bptno ,bptno gdb-enabled t) putstring)
-      (add-text-properties
-       0 1 `(gdb-bptno ,bptno gdb-enabled nil) putstring))
-    (gdb-remove-breakpoint-icons start end)
-    (if (display-images-p)
-        (if (>= (or left-fringe-width
-                    (if source-window (car (window-fringes source-window)))
-                    gdb-buffer-fringe-width) 8)
-            (gdb-put-string
-             nil (1+ start)
-             `(left-fringe breakpoint
-                           ,(if enabled
-                                'breakpoint-enabled
-                              'breakpoint-disabled))
-             'gdb-bptno bptno
-             'gdb-enabled enabled)
-          (when (< left-margin-width 2)
-            (save-current-buffer
-              (setq left-margin-width 2)
-              (if source-window
-                  (set-window-margins
-                   source-window
-                   left-margin-width right-margin-width))))
-          (put-image
-           (if enabled
-               (or breakpoint-enabled-icon
-                   (setq breakpoint-enabled-icon
-                         (find-image `((:type xpm :data
-                                              ,breakpoint-xpm-data
-                                              :ascent 100 :pointer hand)
-                                       (:type pbm :data
-                                              ,breakpoint-enabled-pbm-data
-                                              :ascent 100 :pointer hand)))))
-             (or breakpoint-disabled-icon
-                 (setq breakpoint-disabled-icon
-                       (find-image `((:type xpm :data
-                                            ,breakpoint-xpm-data
-                                            :conversion disabled
-                                            :ascent 100 :pointer hand)
-                                     (:type pbm :data
-                                            ,breakpoint-disabled-pbm-data
-                                            :ascent 100 :pointer hand))))))
-           (+ start 1)
-           putstring
-           'left-margin))
-      (when (< left-margin-width 2)
-        (save-current-buffer
-          (setq left-margin-width 2)
-          (let ((window (get-buffer-window (current-buffer) 0)))
-            (if window
-              (set-window-margins
-               window left-margin-width right-margin-width)))))
-      (gdb-put-string
-       (propertize putstring
-                   'face (if enabled 'breakpoint-enabled 'breakpoint-disabled))
-       (1+ start)))))
-
-(defun gdb-remove-breakpoint-icons (start end &optional remove-margin)
-  (gdb-remove-strings start end)
-  (if (display-images-p)
-      (remove-images start end))
-  (when remove-margin
-    (setq left-margin-width 0)
-    (let ((window (get-buffer-window (current-buffer) 0)))
-      (if window
-          (set-window-margins
-           window left-margin-width right-margin-width)))))
-
-(provide 'gdb-mi)
-
-;; arch-tag: 1b41ea2b-f364-4cec-8f35-e02e4fe01912
-;;; gdb-mi.el ends here
diff --git a/lisp/progmodes/gdb-ui.el b/lisp/progmodes/gdb-ui.el
new file mode 100644
index 00000000000..6a8ca89cda5
--- /dev/null
+++ b/lisp/progmodes/gdb-ui.el
@@ -0,0 +1,4129 @@
+;;; gdb-ui.el --- User Interface for running GDB
+
+;; Author: Nick Roberts <nickrob@gnu.org>
+;; Maintainer: FSF
+;; Keywords: unix, tools
+
+;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+;; Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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.
+
+;; GNU Emacs 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 GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; This mode acts as a graphical user interface to GDB.  You can interact with
+;; GDB through the GUD buffer in the usual way, but there are also further
+;; buffers which control the execution and describe the state of your program.
+;; It separates the input/output of your program from that of GDB, if
+;; required, and watches expressions in the speedbar.  It also uses features of
+;; Emacs 21 such as the fringe/display margin for breakpoints, and the toolbar
+;; (see the GDB Graphical Interface section in the Emacs info manual).
+
+;; By default, M-x gdb will start the debugger.
+
+;; This file has evolved from gdba.el that was included with GDB 5.0 and
+;; written by Tom Lord and Jim Kingdon.  It uses GDB's annotation interface.
+;; You don't need to know about annotations to use this mode as a debugger,
+;; but if you are interested developing the mode itself, see the Annotations
+;; section in the GDB info manual.
+
+;; GDB developers plan to make the annotation interface obsolete.  A new
+;; interface called GDB/MI (machine interface) has been designed to replace it.
+;; Some GDB/MI commands are used in this file through the CLI command
+;; 'interpreter mi <mi-command>'.  To help with the process of fully migrating
+;; Emacs from annotations to GDB/MI, there is an experimental package called
+;; gdb-mi in the Emacs Lisp Package Archive ("http://tromey.com/elpa/").  It
+;; comprises of modified gud.el and a file called gdb-mi.el which replaces
+;; gdb-ui.el.  When installed, this overrides the current files and invoking
+;; M-x gdb will use GDB/MI directly (starts with "gdb -i=mi").  When deleted
+;; ('d' followed by 'x' in Package Menu mode), the files are deleted and old
+;; functionality restored.  This provides a convenient way to review the
+;; current status/contribute to its improvement.  For someone who just wants to
+;; use GDB, however, the current mode in Emacs 22 is a much better option.
+;; There is also a file, also called gdb-mi.el, a version of which is included
+;; the GDB distribution.  This will probably only work with versions
+;; distributed with GDB 6.5 or later.  Unlike the version in ELPA it works on
+;; top of gdb-ui.el and you can only start it with M-x gdbmi.
+
+;; This mode SHOULD WORK WITH GDB 5.0 or later but you will NEED AT LEAST
+;; GDB 6.0 to use watch expressions.  It works best with GDB 6.4 or later
+;; where watch expressions will update more quickly.
+
+;;; Windows Platforms:
+
+;; If you are using Emacs and GDB on Windows you will need to flush the buffer
+;; explicitly in your program if you want timely display of I/O in Emacs.
+;; Alternatively you can make the output stream unbuffered, for example, by
+;; using a macro:
+
+;;           #ifdef UNBUFFERED
+;;           setvbuf (stdout, (char *) NULL, _IONBF, 0);
+;;           #endif
+
+;; and compiling with -DUNBUFFERED while debugging.
+
+;; If you are using Cygwin GDB and find that the source is not being displayed
+;; in Emacs when you step through it, possible solutions are to:
+
+;;   1) Use Cygwin X Windows and Cygwin Emacs.
+;;        (Since 22.1 Emacs builds under Cygwin.)
+;;   2) Use MinGW GDB instead.
+;;   3) Use cygwin-mount.el
+
+;;; Mac OSX:
+
+;; GDB in Emacs on Mac OSX works best with FSF GDB as Apple have made
+;; some changes to the version that they include as part of Mac OSX.
+;; This requires GDB version 7.0 or later (estimated release date June 2009)
+;; as earlier versions don not compile on Mac OSX.
+
+;;; Known Bugs:
+
+;; 1) Cannot handle multiple debug sessions.
+;; 2) If you wish to call procedures from your program in GDB
+;;    e.g "call myproc ()", "p mysquare (5)" then use level 2 annotations
+;;    "gdb --annotate=2 myprog" to keep source buffer/selected frame fixed.
+;; 3) After detaching from a process, clicking on the "GO" icon on toolbar
+;;    (gud-go) sends "continue" to GDB (should be "run").
+
+;;; TODO:
+
+;; 1) Use MI command -data-read-memory for memory window.
+;; 2) Use tree-buffer.el (from ECB) instead of the speedbar for
+;;    watch-expressions?  Handling of watch-expressions needs to be
+;;    overhauled to work for large arrays/structures by creating variable
+;;    objects for visible watch-expressions only.
+;; 3) Mark breakpoint locations on scroll-bar of source buffer?
+
+;;; Code:
+
+(require 'gud)
+(require 'json)
+(require 'bindat)
+
+(defvar tool-bar-map)
+(defvar speedbar-initial-expansion-list-name)
+(defvar speedbar-frame)
+
+(defvar gdb-pc-address nil "Initialization for Assembler buffer.
+Set to \"main\" at start if `gdb-show-main' is t.")
+(defvar gdb-frame-address nil "Identity of frame for watch expression.")
+(defvar gdb-previous-frame-pc-address nil)
+(defvar gdb-memory-address "main")
+(defvar gdb-previous-frame nil)
+(defvar gdb-selected-frame nil)
+(defvar gdb-frame-number nil)
+(defvar gdb-current-language nil)
+(defvar gdb-var-list nil
+  "List of variables in watch window.
+Each element has the form (VARNUM EXPRESSION NUMCHILD TYPE VALUE STATUS HAS_MORE FP)
+where STATUS is nil (`unchanged'), `changed' or `out-of-scope', FP the frame
+address for root variables.")
+(defvar gdb-main-file nil "Source file from which program execution begins.")
+(defvar gud-old-arrow nil)
+(defvar gdb-thread-indicator nil)
+(defvar gdb-overlay-arrow-position nil)
+(defvar gdb-stack-position nil)
+(defvar gdb-server-prefix nil)
+(defvar gdb-flush-pending-output nil)
+(defvar gdb-location-alist nil
+  "Alist of breakpoint numbers and full filenames.  Only used for files that
+Emacs can't find.")
+(defvar gdb-active-process nil
+  "GUD tooltips display variable values when t, and macro definitions otherwise.")
+(defvar gdb-recording nil
+  "If t, then record session for playback and reverse execution")
+(defvar gdb-error "Non-nil when GDB is reporting an error.")
+(defvar gdb-macro-info nil
+  "Non-nil if GDB knows that the inferior includes preprocessor macro info.")
+(defvar gdb-buffer-fringe-width nil)
+(defvar gdb-signalled nil)
+(defvar gdb-source-window nil)
+(defvar gdb-inferior-status nil)
+(defvar gdb-continuation nil)
+(defvar gdb-look-up-stack nil)
+(defvar gdb-frame-begin nil
+  "Non-nil when GDB generates frame-begin annotation.")
+(defvar gdb-printing t)
+(defvar gdb-parent-bptno-enabled nil)
+(defvar gdb-ready nil)
+(defvar gdb-stack-update nil)
+(defvar gdb-early-user-input nil)
+
+(defvar gdb-buffer-type nil
+  "One of the symbols bound in `gdb-buffer-rules'.")
+(make-variable-buffer-local 'gdb-buffer-type)
+
+(defvar gdb-input-queue ()
+  "A list of gdb command objects.")
+
+(defvar gdb-prompting nil
+  "True when gdb is idle with no pending input.")
+
+(defvar gdb-output-sink nil
+  "The disposition of the output of the current gdb command.
+Possible values are these symbols:
+
+    `user' -- gdb output should be copied to the GUD buffer
+              for the user to see.
+
+    `inferior' -- gdb output should be copied to the inferior-io buffer.
+
+    `pre-emacs' -- output should be ignored util the post-prompt
+                   annotation is received.  Then the output-sink
+                   becomes:...
+    `emacs' -- output should be collected in the partial-output-buffer
+               for subsequent processing by a command.  This is the
+               disposition of output generated by commands that
+               gdb mode sends to gdb on its own behalf.
+    `post-emacs' -- ignore output until the prompt annotation is
+                    received, then go to USER disposition.
+
+gdba (gdb-ui.el) uses all five values, gdbmi (gdb-mi.el) only two
+\(`user' and `emacs').")
+
+(defvar gdb-current-item nil
+  "The most recent command item sent to gdb.")
+
+(defvar gdb-pending-triggers '()
+  "A list of trigger functions that have run later than their output handlers.")
+
+(defvar gdb-first-post-prompt nil)
+(defvar gdb-version nil)
+(defvar gdb-locals-font-lock-keywords nil)
+(defvar gdb-source-file-list nil
+  "List of source files for the current executable.")
+(defconst gdb-error-regexp "\\^error,msg=\"\\(.+\\)\"")
+
+(defvar gdb-locals-font-lock-keywords-1
+  '(;; var = (struct struct_tag) value
+    ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +(\\(struct\\) \\(\\(\\sw\\|[_.]\\)+\\)"
+      (1 font-lock-variable-name-face)
+      (3 font-lock-keyword-face)
+      (4 font-lock-type-face))
+    ;; var = (type) value
+    ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +(\\(\\(\\sw\\|[_.]\\)+\\)"
+      (1 font-lock-variable-name-face)
+      (3 font-lock-type-face))
+    ;; var = val
+    ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +[^(]"
+      (1 font-lock-variable-name-face)))
+  "Font lock keywords used in `gdb-local-mode'.")
+
+(defvar gdb-locals-font-lock-keywords-2
+  '(;; var = type value
+    ( "\\(^\\(\\sw\\|[_.]\\)+\\)\t+\\(\\(\\sw\\|[_.]\\)+\\)"
+      (1 font-lock-variable-name-face)
+      (3 font-lock-type-face)))
+  "Font lock keywords used in `gdb-local-mode'.")
+
+;; Variables for GDB 6.4+
+(defvar gdb-register-names nil "List of register names.")
+(defvar gdb-changed-registers nil
+  "List of changed register numbers (strings).")
+
+;;;###autoload
+(defun gdb (command-line)
+  "Run gdb on program FILE in buffer *gud-FILE*.
+The directory containing FILE becomes the initial working
+directory and source-file directory for your debugger.
+
+If `gdb-many-windows' is nil (the default value) then gdb just
+pops up the GUD buffer unless `gdb-show-main' is t.  In this case
+it starts with two windows: one displaying the GUD buffer and the
+other with the source file with the main routine of the inferior.
+
+If `gdb-many-windows' is t, regardless of the value of
+`gdb-show-main', the layout below will appear unless
+`gdb-use-separate-io-buffer' is nil when the source buffer
+occupies the full width of the frame.  Keybindings are shown in
+some of the buffers.
+
+Watch expressions appear in the speedbar/slowbar.
+
+The following commands help control operation :
+
+`gdb-many-windows'    - Toggle the number of windows gdb uses.
+`gdb-restore-windows' - To restore the window layout.
+
+See Info node `(emacs)GDB Graphical Interface' for a more
+detailed description of this mode.
+
++----------------------------------------------------------------------+
+|                               GDB Toolbar                            |
++-----------------------------------+----------------------------------+
+|  GUD buffer (I/O of GDB)          |  Locals buffer                   |
+|-----------------------------------+----------------------------------+
+|                                   |                                  |
+|  Source buffer                    |  I/O buffer for debugged program |
+|                                   |                                  |
+|-----------------------------------+----------------------------------+
+|  Stack buffer                     |  Breakpoints/threads buffer      |
++-----------------------------------+----------------------------------+
+
+The option \"--annotate=3\" must be included in this value.  To
+run GDB in text command mode, use `gud-gdb'.  You need to use
+text command mode to debug multiple programs within one Emacs
+session."
+  (interactive (list (gud-query-cmdline 'gdb)))
+
+  (when (and gud-comint-buffer
+           (buffer-name gud-comint-buffer)
+           (get-buffer-process gud-comint-buffer)
+           (with-current-buffer gud-comint-buffer (eq gud-minor-mode 'gdba)))
+        (gdb-restore-windows)
+        (error
+         "Multiple debugging requires restarting in text command mode"))
+
+  (gud-common-init command-line nil 'gud-gdba-marker-filter)
+  (set (make-local-variable 'gud-minor-mode) 'gdba)
+  (setq comint-input-sender 'gdb-send)
+
+  (gud-def gud-break  "break %f:%l"  "\C-b" "Set breakpoint at current line.")
+  (gud-def gud-tbreak "tbreak %f:%l" "\C-t"
+           "Set temporary breakpoint at current line.")
+  (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line.")
+  (gud-def gud-step   "step %p"     "\C-s" "Step one source line with display.")
+  (gud-def gud-stepi  "stepi %p"    "\C-i" "Step one instruction with display.")
+  (gud-def gud-next   "next %p"     "\C-n" "Step one line (skip functions).")
+  (gud-def gud-nexti  "nexti %p" nil   "Step one instruction (skip functions).")
+  (gud-def gud-cont   "continue"     "\C-r" "Continue with display.")
+  (gud-def gud-finish "finish"   "\C-f" "Finish executing current function.")
+  (gud-def gud-jump
+           (progn (gud-call "tbreak %f:%l") (gud-call "jump %f:%l"))
+           "\C-j" "Set execution address to current line.")
+
+  (gud-def gud-rstep   "reverse-step %p"  nil "Reverse step one source line with display.")
+  (gud-def gud-rstepi  "reverse-stepi %p" nil "Reverse step one instruction with display.")
+  (gud-def gud-rnext   "reverse-next %p"  nil "Reverse step one line (skip functions).")
+  (gud-def gud-rnexti  "reverse-nexti %p" nil "Reverse step one instruction (skip functions).")
+  (gud-def gud-rcont   "reverse-continue" nil "Reverse continue with display.")
+  (gud-def gud-rfinish "reverse-finish"   nil "Reverse finish executing current function.")
+
+  (gud-def gud-up     "up %p"     "<" "Up N stack frames (numeric arg).")
+  (gud-def gud-down   "down %p"   ">" "Down N stack frames (numeric arg).")
+  (gud-def gud-print  "print %e"  "\C-p" "Evaluate C expression at point.")
+  (gud-def gud-pstar  "print* %e" nil
+           "Evaluate C dereferenced pointer expression at point.")
+
+  ;; For debugging Emacs only.
+  (gud-def gud-pv "pv1 %e"      "\C-v" "Print the value of the lisp variable.")
+
+  (gud-def gud-until  "until %l" "\C-u" "Continue to current line.")
+  (gud-def gud-run    "run"      nil    "Run the program.")
+
+  (local-set-key "\C-i" 'gud-gdb-complete-command)
+  (setq comint-prompt-regexp "^(.*gdb[+]?) *")
+  (setq paragraph-start comint-prompt-regexp)
+  (setq gdb-output-sink 'user)
+  (setq gdb-first-prompt t)
+  (setq gud-running nil)
+  (setq gdb-ready nil)
+  (setq gdb-stack-update nil)
+  (setq gdb-flush-pending-output nil)
+  (setq gdb-early-user-input nil)
+  (setq gud-filter-pending-text nil)
+  (gdb-thread-identification)
+  (run-hooks 'gdb-mode-hook))
+
+;; Keep as an alias for compatibility with Emacs 22.1.
+;;;###autoload
+(defalias 'gdba 'gdb)
+
+(defgroup gdb nil
+  "Gdb Graphical Mode options specifically for running Gdb in Emacs."
+  :group 'processes
+  :group 'tools)
+
+(defcustom gdb-debug-log-max 128
+  "Maximum size of `gdb-debug-log'.  If nil, size is unlimited."
+  :group 'gdb
+  :type '(choice (integer :tag "Number of elements")
+                 (const   :tag "Unlimited" nil))
+  :version "22.1")
+
+(defvar gdb-debug-log nil
+  "List of commands sent to and replies received from GDB.
+Most recent commands are listed first.  This list stores only the last
+`gdb-debug-log-max' values.  This variable is used to debug GDB-UI.")
+
+;;;###autoload
+(defcustom gdb-enable-debug nil
+  "Non-nil means record the process input and output in `gdb-debug-log'."
+  :type 'boolean
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-cpp-define-alist-program "gcc -E -dM -"
+  "Shell command for generating a list of defined macros in a source file.
+This list is used to display the #define directive associated
+with an identifier as a tooltip.  It works in a debug session with
+GDB, when `gud-tooltip-mode' is t.
+
+Set `gdb-cpp-define-alist-flags' for any include paths or
+predefined macros."
+  :type 'string
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-cpp-define-alist-flags ""
+  "Preprocessor flags for `gdb-cpp-define-alist-program'."
+  :type 'string
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-create-source-file-list t
+  "Non-nil means create a list of files from which the executable was built.
+Set this to nil if the GUD buffer displays \"initializing...\" in the mode
+line for a long time when starting, possibly because your executable was
+built from a large number of files.  This allows quicker initialization
+but means that these files are not automatically enabled for debugging,
+e.g., you won't be able to click in the fringe to set a breakpoint until
+execution has already stopped there."
+  :type 'boolean
+  :group 'gdb
+  :version "23.1")
+
+(defcustom gdb-show-main nil
+  "Non-nil means display source file containing the main routine at startup.
+Also display the main routine in the disassembly buffer if present."
+  :type 'boolean
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-many-windows nil
+  "If nil, just pop up the GUD buffer unless `gdb-show-main' is t.
+In this case start with two windows: one displaying the GUD
+buffer and the other with the source file with the main routine
+of the debugged program.  Non-nil means display the layout shown
+for `gdba'."
+  :type 'boolean
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-use-separate-io-buffer nil
+  "Non-nil means display output from the debugged program in a separate buffer."
+  :type 'boolean
+  :group 'gdb
+  :version "22.1")
+
+(defun gdb-force-mode-line-update (status)
+  (let ((buffer gud-comint-buffer))
+    (if (and buffer (buffer-name buffer))
+        (with-current-buffer buffer
+          (setq mode-line-process
+                (format ":%s [%s]"
+                        (process-status (get-buffer-process buffer)) status))
+          ;; Force mode line redisplay soon.
+          (force-mode-line-update)))))
+
+(defun gdb-enable-debug (arg)
+  "Toggle logging of transaction between Emacs and Gdb.
+The log is stored in `gdb-debug-log' as an alist with elements
+whose cons is send, send-item or recv and whose cdr is the string
+being transferred.  This list may grow up to a size of
+`gdb-debug-log-max' after which the oldest element (at the end of
+the list) is deleted every time a new one is added (at the front)."
+  (interactive "P")
+  (setq gdb-enable-debug
+        (if (null arg)
+            (not gdb-enable-debug)
+          (> (prefix-numeric-value arg) 0)))
+  (message (format "Logging of transaction %sabled"
+                   (if gdb-enable-debug "en" "dis"))))
+
+(defun gdb-many-windows (arg)
+  "Toggle the number of windows in the basic arrangement.
+With prefix argument ARG, display additional buffers if ARG is positive,
+otherwise use a single window."
+  (interactive "P")
+  (setq gdb-many-windows
+        (if (null arg)
+            (not gdb-many-windows)
+          (> (prefix-numeric-value arg) 0)))
+  (message (format "Display of other windows %sabled"
+                   (if gdb-many-windows "en" "dis")))
+  (if (and gud-comint-buffer
+           (buffer-name gud-comint-buffer))
+      (condition-case nil
+          (gdb-restore-windows)
+        (error nil))))
+
+(defun gdb-use-separate-io-buffer (arg)
+  "Toggle separate IO for debugged program.
+With prefix argument ARG, use separate IO if ARG is positive,
+otherwise do not."
+  (interactive "P")
+  (setq gdb-use-separate-io-buffer
+        (if (null arg)
+            (not gdb-use-separate-io-buffer)
+          (> (prefix-numeric-value arg) 0)))
+  (message (format "Separate IO %sabled"
+                   (if gdb-use-separate-io-buffer "en" "dis")))
+  (if (and gud-comint-buffer
+           (buffer-name gud-comint-buffer))
+      (condition-case nil
+          (if gdb-use-separate-io-buffer
+              (if gdb-many-windows (gdb-restore-windows))
+            (kill-buffer (gdb-inferior-io-name)))
+        (error nil))))
+
+(defvar gdb-define-alist nil "Alist of #define directives for GUD tooltips.")
+
+(defun gdb-create-define-alist ()
+  "Create an alist of #define directives for GUD tooltips."
+  (let* ((file (buffer-file-name))
+         (output
+          (with-output-to-string
+            (with-current-buffer standard-output
+              (and file
+                   (file-exists-p file)
+                   ;; call-process doesn't work with remote file names.
+                   (not (file-remote-p default-directory))
+                   (call-process shell-file-name file
+                                 (list t nil) nil "-c"
+                                 (concat gdb-cpp-define-alist-program " "
+                                         gdb-cpp-define-alist-flags))))))
+        (define-list (split-string output "\n" t)) (name))
+    (setq gdb-define-alist nil)
+    (dolist (define define-list)
+      (setq name (nth 1 (split-string define "[( ]")))
+      (push (cons name define) gdb-define-alist))))
+
+(declare-function tooltip-show "tooltip" (text &optional use-echo-area))
+(defvar tooltip-use-echo-area)
+
+(defun gdb-tooltip-print (expr)
+  (tooltip-show
+   (with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
+     (goto-char (point-min))
+     (let ((string
+            (if (search-forward "=" nil t)
+                (concat expr (buffer-substring (- (point) 2) (point-max)))
+              (buffer-string))))
+       ;; remove newline for gud-tooltip-echo-area
+       (substring string 0 (- (length string) 1))))
+   (or gud-tooltip-echo-area tooltip-use-echo-area
+   (not (display-graphic-p)))))
+
+;; If expr is a macro for a function don't print because of possible dangerous
+;; side-effects. Also printing a function within a tooltip generates an
+;; unexpected starting annotation (phase error).
+(defun gdb-tooltip-print-1 (expr)
+  (with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
+    (goto-char (point-min))
+    (if (search-forward "expands to: " nil t)
+        (unless (looking-at "\\S-+.*(.*).*")
+          (gdb-enqueue-input
+           (list  (concat gdb-server-prefix "print " expr "\n")
+                  `(lambda () (gdb-tooltip-print ,expr))))))))
+
+(defconst gdb-source-file-regexp "\\(.+?\\), \\|\\([^, \n].*$\\)")
+
+(defun gdb-init-buffer ()
+  (set (make-local-variable 'gud-minor-mode)
+       (buffer-local-value 'gud-minor-mode gud-comint-buffer))
+  (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
+  (when gud-tooltip-mode
+    (make-local-variable 'gdb-define-alist)
+    (gdb-create-define-alist)
+    (add-hook 'after-save-hook 'gdb-create-define-alist nil t)))
+
+(defun gdb-set-gud-minor-mode-existing-buffers ()
+  "Create list of source files for current GDB session."
+  (goto-char (point-min))
+  (when (search-forward "read in on demand:" nil t)
+    (while (re-search-forward gdb-source-file-regexp nil t)
+      (push (file-name-nondirectory (or (match-string 1) (match-string 2)))
+            gdb-source-file-list))
+    (dolist (buffer (buffer-list))
+      (with-current-buffer buffer
+        (when (and buffer-file-name
+                   (member (file-name-nondirectory buffer-file-name)
+                           gdb-source-file-list))
+          (gdb-init-buffer)))))
+  (gdb-force-mode-line-update
+   (propertize "ready" 'face font-lock-variable-name-face)))
+
+(defun gdb-find-watch-expression ()
+  (let* ((var (nth (- (line-number-at-pos (point)) 2) gdb-var-list))
+         (varnum (car var)) expr array)
+    (string-match "\\(var[0-9]+\\)\\.\\(.*\\)" varnum)
+    (let ((var1 (assoc (match-string 1 varnum) gdb-var-list)) var2 varnumlet
+          (component-list (split-string (match-string 2 varnum) "\\." t)))
+      (setq expr (nth 1 var1))
+      (setq varnumlet (car var1))
+      (dolist (component component-list)
+        (setq var2 (assoc varnumlet gdb-var-list))
+        (setq expr (concat expr
+                           (if (string-match ".*\\[[0-9]+\\]$" (nth 3 var2))
+                               (concat "[" component "]")
+                             (concat "." component))))
+        (setq varnumlet (concat varnumlet "." component)))
+      expr)))
+
+(defun gdb-toggle-recording ()
+"Start/stop recording of debug session."
+  (interactive)
+  (if gud-running
+      (message-box "Recording cannot be started or stopped while your program is still running")
+      (gdb-enqueue-input
+       (list (concat gdb-server-prefix
+                     (if gdb-recording "record stop\n" "target record\n"))
+             'gdb-recording-handler))))
+
+;; Convenience function for tool bar.
+(defalias 'gdb-toggle-recording-1 'gdb-toggle-recording)
+
+(defun gdb-recording-handler ()
+  (goto-char (point-min))
+  (if (re-search-forward "current architecture doesn't support record function" nil t)
+      (message-box "Not enabled.  The current architecture doesn't support the process record function.")
+    (goto-char (point-min))
+    (if (re-search-forward "Undefined target command" nil t)
+        (message-box "Not enabled.  Process record requires GDB 7.0 onwards.")
+      (goto-char (point-min))
+      (if (re-search-forward "the program is not being run" nil t)
+          (message-box "Not enabled.  Starting process recording requires an active target (running process).")
+        (setq gdb-recording (not gdb-recording))
+        ;; Actually forcing the tool-bar to update.
+        (force-mode-line-update)))))
+
+(defun gdb-init-1 ()
+  (gud-def gud-break (if (not (string-match "Machine" mode-name))
+                         (gud-call "break %f:%l" arg)
+                       (save-excursion
+                         (beginning-of-line)
+                         (forward-char 2)
+                         (gud-call "break *%a" arg)))
+           "\C-b" "Set breakpoint at current line or address.")
+  ;;
+  (gud-def gud-remove (if (not (string-match "Machine" mode-name))
+                          (gud-call "clear %f:%l" arg)
+                        (save-excursion
+                          (beginning-of-line)
+                          (forward-char 2)
+                          (gud-call "clear *%a" arg)))
+           "\C-d" "Remove breakpoint at current line or address.")
+  ;;
+  (gud-def gud-until (if (not (string-match "Machine" mode-name))
+                         (gud-call "until %f:%l" arg)
+                       (save-excursion
+                         (beginning-of-line)
+                         (forward-char 2)
+                         (gud-call "until *%a" arg)))
+           "\C-u" "Continue to current line or address.")
+  ;;
+  (gud-def gud-go (gud-call (if gdb-active-process "continue" "run") arg)
+           nil "Start or continue execution.")
+
+  ;; For debugging Emacs only.
+  (gud-def gud-pp
+           (gud-call
+            (concat
+             "pp1 " (if (eq (buffer-local-value
+                             'major-mode (window-buffer)) 'speedbar-mode)
+                        (gdb-find-watch-expression) "%e")) arg)
+           nil   "Print the Emacs s-expression.")
+
+  (define-key gud-minor-mode-map [left-margin mouse-1]
+    'gdb-mouse-set-clear-breakpoint)
+  (define-key gud-minor-mode-map [left-fringe mouse-1]
+    'gdb-mouse-set-clear-breakpoint)
+   (define-key gud-minor-mode-map [left-margin C-mouse-1]
+    'gdb-mouse-toggle-breakpoint-margin)
+  (define-key gud-minor-mode-map [left-fringe C-mouse-1]
+    'gdb-mouse-toggle-breakpoint-fringe)
+
+  (define-key gud-minor-mode-map [left-margin drag-mouse-1]
+    'gdb-mouse-until)
+  (define-key gud-minor-mode-map [left-fringe drag-mouse-1]
+    'gdb-mouse-until)
+  (define-key gud-minor-mode-map [left-margin mouse-3]
+    'gdb-mouse-until)
+  (define-key gud-minor-mode-map [left-fringe mouse-3]
+    'gdb-mouse-until)
+
+  (define-key gud-minor-mode-map [left-margin C-drag-mouse-1]
+    'gdb-mouse-jump)
+  (define-key gud-minor-mode-map [left-fringe C-drag-mouse-1]
+    'gdb-mouse-jump)
+  (define-key gud-minor-mode-map [left-fringe C-mouse-3]
+    'gdb-mouse-jump)
+  (define-key gud-minor-mode-map [left-margin C-mouse-3]
+    'gdb-mouse-jump)
+
+  ;; (re-)initialize
+  (setq gdb-pc-address (if gdb-show-main "main" nil))
+  (setq gdb-previous-frame-pc-address nil
+        gdb-memory-address "main"
+        gdb-previous-frame nil
+        gdb-selected-frame nil
+        gdb-current-language nil
+        gdb-frame-number nil
+        gdb-var-list nil
+        gdb-main-file nil
+        gdb-first-post-prompt t
+        gdb-prompting nil
+        gdb-input-queue nil
+        gdb-current-item nil
+        gdb-pending-triggers nil
+        gdb-output-sink 'user
+        gdb-server-prefix "server "
+        gdb-location-alist nil
+        gdb-source-file-list nil
+        gdb-error nil
+        gdb-macro-info nil
+        gdb-buffer-fringe-width (car (window-fringes))
+        gdb-debug-log nil
+        gdb-signalled nil
+        gdb-source-window nil
+        gdb-inferior-status nil
+        gdb-continuation nil
+        gdb-look-up-stack nil
+        gdb-frame-begin nil
+        gdb-printing t
+        gud-old-arrow nil
+        gdb-thread-indicator nil
+        gdb-register-names nil
+        gdb-recording nil)
+
+  (setq gdb-buffer-type 'gdba)
+
+  (if gdb-use-separate-io-buffer (gdb-clear-inferior-io))
+
+  ;; Hack to see test for GDB 6.4+ (-stack-info-frame was implemented in 6.4)
+  (gdb-enqueue-input (list "server interpreter mi -stack-info-frame\n"
+                           'gdb-get-version)))
+
+(defun gdb-init-2 ()
+  (if (eq window-system 'w32)
+      (gdb-enqueue-input (list "set new-console off\n" 'ignore)))
+  (gdb-enqueue-input (list "set height 0\n" 'ignore))
+  (gdb-enqueue-input (list "set width 0\n" 'ignore))
+
+  (if (string-equal gdb-version "pre-6.4")
+      (if gdb-create-source-file-list
+        (gdb-enqueue-input (list (concat gdb-server-prefix "info sources\n")
+                                 'gdb-set-gud-minor-mode-existing-buffers))
+        (setq gdb-locals-font-lock-keywords gdb-locals-font-lock-keywords-1))
+    ; Needs GDB 6.2 onwards.
+    (if gdb-create-source-file-list
+        (gdb-enqueue-input
+         (list "server interpreter mi \"-file-list-exec-source-files\"\n"
+               'gdb-set-gud-minor-mode-existing-buffers-1)))
+    (setq gdb-locals-font-lock-keywords gdb-locals-font-lock-keywords-2)
+    ; Needs GDB 7.0 onwards.
+    (gdb-enqueue-input
+     (list "server interpreter mi -enable-pretty-printing\n" 'ignore)))
+
+  ;; Find source file and compilation directory here.
+  ;; Works for C, C++, Fortran and Ada but not Java (GDB 6.4)
+  (gdb-enqueue-input (list "server list\n" 'ignore))
+  (gdb-enqueue-input (list "server list MAIN__\n" 'ignore))
+  (gdb-enqueue-input (list "server info source\n" 'gdb-source-info)))
+
+(defun gdb-get-version ()
+  (goto-char (point-min))
+  (if (re-search-forward "Undefined\\( mi\\)* command:" nil t)
+      (setq gdb-version "pre-6.4")
+    (setq gdb-version "6.4+"))
+  (gdb-init-2))
+
+(defmacro gdb-if-arrow (arrow-position &rest body)
+  `(if ,arrow-position
+      (let ((buffer (marker-buffer ,arrow-position)) (line))
+        (if (equal buffer (window-buffer (posn-window end)))
+            (with-current-buffer buffer
+              (when (or (equal start end)
+                        (equal (posn-point start)
+                               (marker-position ,arrow-position)))
+                ,@body))))))
+
+(defun gdb-mouse-until (event)
+  "Continue running until a source line past the current line.
+The destination source line can be selected either by clicking
+with mouse-3 on the fringe/margin or dragging the arrow
+with mouse-1 (default bindings)."
+  (interactive "e")
+  (let ((start (event-start event))
+        (end (event-end event)))
+    (gdb-if-arrow gud-overlay-arrow-position
+                  (setq line (line-number-at-pos (posn-point end)))
+                  (gud-call (concat "until " (number-to-string line))))
+    (gdb-if-arrow gdb-overlay-arrow-position
+                  (save-excursion
+                    (goto-char (point-min))
+                    (forward-line (1- (line-number-at-pos (posn-point end))))
+                    (forward-char 2)
+                    (gud-call (concat "until *%a"))))))
+
+(defun gdb-mouse-jump (event)
+  "Set execution address/line.
+The destination source line can be selected either by clicking with C-mouse-3
+on the fringe/margin or dragging the arrow with C-mouse-1 (default bindings).
+Unlike `gdb-mouse-until' the destination address can be before the current
+line, and no execution takes place."
+  (interactive "e")
+  (let ((start (event-start event))
+        (end (event-end event)))
+    (gdb-if-arrow gud-overlay-arrow-position
+                  (setq line (line-number-at-pos (posn-point end)))
+                  (progn
+                    (gud-call (concat "tbreak " (number-to-string line)))
+                    (gud-call (concat "jump " (number-to-string line)))))
+    (gdb-if-arrow gdb-overlay-arrow-position
+                  (save-excursion
+                    (goto-char (point-min))
+                    (forward-line (1- (line-number-at-pos (posn-point end))))
+                    (forward-char 2)
+                    (progn
+                      (gud-call (concat "tbreak *%a"))
+                      (gud-call (concat "jump *%a")))))))
+
+(defcustom gdb-speedbar-auto-raise nil
+  "If non-nil raise speedbar every time display of watch expressions is\
+ updated."
+  :type 'boolean
+  :group 'gdb
+  :version "22.1")
+
+(defun gdb-speedbar-auto-raise (arg)
+  "Toggle automatic raising of the speedbar for watch expressions.
+With prefix argument ARG, automatically raise speedbar if ARG is
+positive, otherwise don't automatically raise it."
+  (interactive "P")
+  (setq gdb-speedbar-auto-raise
+        (if (null arg)
+            (not gdb-speedbar-auto-raise)
+          (> (prefix-numeric-value arg) 0)))
+  (message (format "Auto raising %sabled"
+                   (if gdb-speedbar-auto-raise "en" "dis"))))
+
+(defcustom gdb-use-colon-colon-notation nil
+  "If non-nil use FUN::VAR format to display variables in the speedbar."
+  :type 'boolean
+  :group 'gdb
+  :version "22.1")
+
+(define-key gud-minor-mode-map "\C-c\C-w" 'gud-watch)
+(define-key global-map (concat gud-key-prefix "\C-w") 'gud-watch)
+
+(declare-function tooltip-identifier-from-point "tooltip" (point))
+
+(defun gud-watch (&optional arg event)
+  "Watch expression at point.
+With arg, enter name of variable to be watched in the minibuffer."
+  (interactive (list current-prefix-arg last-input-event))
+  (let ((minor-mode (buffer-local-value 'gud-minor-mode gud-comint-buffer)))
+    (if (memq minor-mode '(gdbmi gdba))
+        (progn
+          (if event (posn-set-point (event-end event)))
+          (require 'tooltip)
+          (save-selected-window
+            (let ((expr
+                   (if arg
+                       (completing-read "Name of variable: "
+                                        'gud-gdb-complete-command)
+                     (if (and transient-mark-mode mark-active)
+                         (buffer-substring (region-beginning) (region-end))
+                       (concat (if (eq major-mode 'gdb-registers-mode) "$")
+                               (tooltip-identifier-from-point (point)))))))
+              (set-text-properties 0 (length expr) nil expr)
+              (gdb-enqueue-input
+               (list
+                (if (eq minor-mode 'gdba)
+                    (concat
+                     "server interpreter mi \"-var-create - * "  expr "\"\n")
+                  (concat"-var-create - * "  expr "\n"))
+                `(lambda () (gdb-var-create-handler ,expr)))))))
+      (message "gud-watch is a no-op in this mode."))))
+
+(defun gdb-var-create-handler (expr)
+  (let* ((result (gdb-json-partial-output)))
+    (if (not (bindat-get-field result 'msg))
+        (let ((var
+               (list (bindat-get-field result 'name)
+                     (if (and (string-equal gdb-current-language "c")
+                              gdb-use-colon-colon-notation gdb-selected-frame)
+                         (setq expr (concat gdb-selected-frame "::" expr))
+                       expr)
+                     (bindat-get-field result 'numchild)
+                     (bindat-get-field result 'type)
+                     (bindat-get-field result 'value)
+                     nil
+                     (bindat-get-field result 'has_more)
+                      gdb-frame-address)))
+          (push var gdb-var-list)
+          (speedbar 1)
+          (unless (string-equal
+                   speedbar-initial-expansion-list-name "GUD")
+            (speedbar-change-initial-expansion-list "GUD")))
+      (message-box "No symbol \"%s\" in current context." expr))))
+
+(defun gdb-speedbar-update ()
+  (when (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame)
+             (not (member 'gdb-speedbar-timer gdb-pending-triggers)))
+    ;; Dummy command to update speedbar even when idle.
+    (gdb-enqueue-input (list "server pwd\n" 'gdb-speedbar-timer-fn))
+    ;; Keep gdb-pending-triggers non-nil till end.
+    (push 'gdb-speedbar-timer gdb-pending-triggers)))
+
+(defun gdb-speedbar-timer-fn ()
+  (if gdb-speedbar-auto-raise
+      (raise-frame speedbar-frame))
+  (setq gdb-pending-triggers
+        (delq 'gdb-speedbar-timer gdb-pending-triggers))
+  (speedbar-timer-fn))
+
+(defun gdb-var-evaluate-expression-handler (varnum changed)
+  (goto-char (point-min))
+  (re-search-forward "\\(.+\\)\\^done,value=\\(\".*\"\\)" nil t)
+  (setq gdb-pending-triggers
+        (delq (string-to-number (match-string 1)) gdb-pending-triggers))
+  (let ((var (assoc varnum gdb-var-list)))
+    (when var
+      (if changed (setcar (nthcdr 5 var) 'changed))
+      (setcar (nthcdr 4 var) (read (match-string 2)))))
+  (gdb-speedbar-update))
+
+(defun gdb-var-list-children (varnum)
+  (gdb-enqueue-input
+   (list (concat "server interpreter mi \"-var-list-children " varnum "\"\n")
+         `(lambda () (gdb-var-list-children-handler ,varnum)))))
+
+(defconst gdb-var-list-children-regexp
+  "child={.*?name=\"\\(.*?\\)\".*?,exp=\"\\(.*?\\)\".*?,\
+numchild=\"\\(.*?\\)\"\\(}\\|.*?,\\(type=\"\\(.*?\\)\"\\)?.*?}\\)")
+
+(defun gdb-var-list-children-handler (varnum)
+  (goto-char (point-min))
+  (let ((var-list nil))
+    (catch 'child-already-watched
+      (dolist (var gdb-var-list)
+        (if (string-equal varnum (car var))
+            (progn
+              (push var var-list)
+              (while (re-search-forward gdb-var-list-children-regexp nil t)
+                (let ((varchild (list (match-string 1)
+                                      (match-string 2)
+                                      (match-string 3)
+                                      (match-string 6)
+                                      nil nil)))
+                  (if (assoc (car varchild) gdb-var-list)
+                      (throw 'child-already-watched nil))
+                  (push varchild var-list)
+                  (gdb-enqueue-input
+                   (list
+                    (concat
+                     "server interpreter mi \"0-var-evaluate-expression "
+                     (car varchild) "\"\n")
+                    `(lambda () (gdb-var-evaluate-expression-handler
+                                 ,(car varchild) nil)))))))
+          (push var var-list)))
+      (setq gdb-var-list (nreverse var-list)))))
+
+(defun gdb-var-update ()
+  (when (not (member 'gdb-var-update gdb-pending-triggers))
+    (gdb-enqueue-input
+     (list "server interpreter mi \"-var-update *\"\n"
+           'gdb-var-update-handler))
+    (push 'gdb-var-update gdb-pending-triggers)))
+
+(defconst gdb-var-update-regexp
+  "{.*?name=\"\\(.*?\\)\".*?,in_scope=\"\\(.*?\\)\".*?,\
+type_changed=\".*?\".*?}")
+
+(defun gdb-var-update-handler ()
+  (dolist (var gdb-var-list)
+    (setcar (nthcdr 5 var) nil))
+  (goto-char (point-min))
+  (let ((n 0))
+    (while (re-search-forward gdb-var-update-regexp nil t)
+      (let ((varnum (match-string 1)))
+        (if  (string-equal (match-string 2) "false")
+            (let ((var (assoc varnum gdb-var-list)))
+              (if var (setcar (nthcdr 5 var) 'out-of-scope)))
+          (setq n (1+ n))
+          (push n gdb-pending-triggers)
+          (gdb-enqueue-input
+           (list
+            (concat "server interpreter mi \"" (number-to-string n)
+                    "-var-evaluate-expression " varnum "\"\n")
+          `(lambda () (gdb-var-evaluate-expression-handler ,varnum t))))))))
+  (setq gdb-pending-triggers
+        (delq 'gdb-var-update gdb-pending-triggers)))
+
+(defun gdb-var-set-format (format)
+  "Set the output format for a variable displayed in the speedbar."
+  (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
+         (varnum (car var)))
+    (gdb-enqueue-input
+     (list
+      (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+          (concat "server interpreter mi \"-var-set-format "
+                  varnum " " format "\"\n")
+        (concat "-var-set-format " varnum " " format "\n"))
+           `(lambda () (gdb-var-set-format-handler ,varnum))))))
+
+(defconst gdb-var-set-format-regexp
+  "format=\"\\(.*?\\)\",.*value=\"\\(.*?\\)\"")
+
+(defun gdb-var-set-format-handler (varnum)
+  (goto-char (point-min))
+  (if (re-search-forward gdb-var-set-format-regexp nil t)
+      (let ((var (assoc varnum gdb-var-list)))
+        (setcar (nthcdr 4 var) (match-string 2))
+        (gdb-var-update-1))))
+
+(defun gdb-var-delete-1 (var varnum)
+  (gdb-enqueue-input
+   (list
+    (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+        (concat "server interpreter mi \"-var-delete " varnum "\"\n")
+      (concat "-var-delete " varnum "\n"))
+    'ignore))
+  (setq gdb-var-list (delq var gdb-var-list))
+  (dolist (varchild gdb-var-list)
+    (if (string-match (concat (car var) "\\.") (car varchild))
+        (setq gdb-var-list (delq varchild gdb-var-list)))))
+
+(defun gdb-var-delete ()
+  "Delete watch expression at point from the speedbar."
+  (interactive)
+  (if (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+            '(gdbmi gdba))
+      (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
+             (varnum (car var)))
+        (if (string-match "\\." (car var))
+            (message-box "Can only delete a root expression")
+          (gdb-var-delete-1 var varnum)))))
+
+(defun gdb-var-delete-children (varnum)
+  "Delete children of variable object at point from the speedbar."
+  (gdb-enqueue-input
+   (list
+    (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+        (concat "server interpreter mi \"-var-delete -c " varnum "\"\n")
+      (concat "-var-delete -c " varnum "\n")) 'ignore)))
+
+(defun gdb-edit-value (text token indent)
+  "Assign a value to a variable displayed in the speedbar."
+  (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
+         (varnum (car var)) (value))
+    (setq value (read-string "New value: "))
+    (gdb-enqueue-input
+     (list
+      (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+          (concat "server interpreter mi \"-var-assign "
+                  varnum " " value "\"\n")
+        (concat "-var-assign " varnum " " value "\n"))
+           `(lambda () (gdb-edit-value-handler ,value))))))
+
+(defun gdb-edit-value-handler (value)
+  (goto-char (point-min))
+  (if (re-search-forward gdb-error-regexp nil t)
+      (message-box "Invalid number or expression (%s)" value)))
+
+(defcustom gdb-show-changed-values t
+  "If non-nil change the face of out of scope variables and changed values.
+Out of scope variables are suppressed with `shadow' face.
+Changed values are highlighted with the face `font-lock-warning-face'."
+  :type 'boolean
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-max-children 40
+  "Maximum number of children before expansion requires confirmation."
+  :type 'integer
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-delete-out-of-scope t
+  "If non-nil delete watch expressions automatically when they go out of scope."
+  :type 'boolean
+  :group 'gdb
+  :version "22.2")
+
+(defun gdb-speedbar-expand-node (text token indent)
+  "Expand the node the user clicked on.
+TEXT is the text of the button we clicked on, a + or - item.
+TOKEN is data related to this node.
+INDENT is the current indentation depth."
+  (if (and gud-comint-buffer (buffer-name gud-comint-buffer))
+      (progn
+        (cond ((string-match "+" text)  ;expand this node
+               (let* ((var (assoc token gdb-var-list))
+                      (expr (nth 1 var)) (children (nth 2 var)))
+                 (if (or (<= (string-to-number children) gdb-max-children)
+                          (y-or-n-p
+                           (format
+                            "%s has %s children. Continue? " expr children)))
+                     (if (and (eq (buffer-local-value
+                                   'gud-minor-mode gud-comint-buffer) 'gdba)
+                              (string-equal gdb-version "pre-6.4"))
+                         (gdb-var-list-children token)
+                       (gdb-var-list-children-1 token)))))
+              ((string-match "-" text)  ;contract this node
+               (dolist (var gdb-var-list)
+                 (if (string-match (concat token "\\.") (car var))
+                     (setq gdb-var-list (delq var gdb-var-list))))
+               (gdb-var-delete-children token)
+               (speedbar-change-expand-button-char ?+)
+               (speedbar-delete-subblock indent))
+              (t (error "Ooops...  not sure what to do")))
+        (speedbar-center-buffer-smartly))
+    (message-box "GUD session has been killed")))
+
+(defun gdb-get-target-string ()
+  (with-current-buffer gud-comint-buffer
+    gud-target-name))
+
+
+;;
+;; gdb buffers.
+;;
+;; Each buffer has a TYPE -- a symbol that identifies the function
+;; of that particular buffer.
+;;
+;; The usual gdb interaction buffer is given the type `gdba' and
+;; is constructed specially.
+;;
+;; Others are constructed by gdb-get-buffer-create and
+;; named according to the rules set forth in the gdb-buffer-rules-assoc
+
+(defvar gdb-buffer-rules-assoc '())
+
+(defun gdb-get-buffer (key)
+  "Return the gdb buffer tagged with type KEY.
+The key should be one of the cars in `gdb-buffer-rules-assoc'."
+  (save-excursion
+    (gdb-look-for-tagged-buffer key (buffer-list))))
+
+(defun gdb-get-buffer-create (key)
+  "Create a new gdb buffer of the type specified by KEY.
+The key should be one of the cars in `gdb-buffer-rules-assoc'."
+  (or (gdb-get-buffer key)
+      (let* ((rules (assoc key gdb-buffer-rules-assoc))
+             (name (funcall (gdb-rules-name-maker rules)))
+             (new (get-buffer-create name)))
+        (with-current-buffer new
+          (let ((trigger))
+            (if (cdr (cdr rules))
+                (setq trigger (funcall (car (cdr (cdr rules))))))
+            (setq gdb-buffer-type key)
+            (set (make-local-variable 'gud-minor-mode)
+                 (buffer-local-value 'gud-minor-mode gud-comint-buffer))
+            (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
+            (if trigger (funcall trigger)))
+          new))))
+
+(defun gdb-rules-name-maker (rules) (car (cdr rules)))
+
+(defun gdb-look-for-tagged-buffer (key bufs)
+  (let ((retval nil))
+    (while (and (not retval) bufs)
+      (set-buffer (car bufs))
+      (if (eq gdb-buffer-type key)
+          (setq retval (car bufs)))
+      (setq bufs (cdr bufs)))
+    retval))
+
+;;
+;; This assoc maps buffer type symbols to rules.  Each rule is a list of
+;; at least one and possible more functions.  The functions have these
+;; roles in defining a buffer type:
+;;
+;;     NAME - Return a name for this  buffer type.
+;;
+;; The remaining function(s) are optional:
+;;
+;;     MODE - called in a new buffer with no arguments, should establish
+;;            the proper mode for the buffer.
+;;
+
+(defun gdb-set-buffer-rules (buffer-type &rest rules)
+  (let ((binding (assoc buffer-type gdb-buffer-rules-assoc)))
+    (if binding
+        (setcdr binding rules)
+      (push (cons buffer-type rules)
+            gdb-buffer-rules-assoc))))
+
+;; GUD buffers are an exception to the rules
+(gdb-set-buffer-rules 'gdba 'error)
+
+;; Partial-output buffer : This accumulates output from a command executed on
+;; behalf of emacs (rather than the user).
+;;
+(gdb-set-buffer-rules 'gdb-partial-output-buffer
+                      'gdb-partial-output-name)
+
+(defun gdb-partial-output-name ()
+  (concat " *partial-output-"
+          (gdb-get-target-string)
+          "*"))
+
+
+(gdb-set-buffer-rules 'gdb-inferior-io
+                      'gdb-inferior-io-name
+                      'gdb-inferior-io-mode)
+
+(defun gdb-inferior-io-name ()
+  (concat "*input/output of "
+          (gdb-get-target-string)
+          "*"))
+
+(defun gdb-display-separate-io-buffer ()
+  "Display IO of debugged program in a separate window."
+  (interactive)
+  (if gdb-use-separate-io-buffer
+      (gdb-display-buffer
+       (gdb-get-buffer-create 'gdb-inferior-io) t)))
+
+(defconst gdb-frame-parameters
+  '((height . 14) (width . 80)
+    (unsplittable . t)
+    (tool-bar-lines . nil)
+    (menu-bar-lines . nil)
+    (minibuffer . nil)))
+
+(defun gdb-frame-separate-io-buffer ()
+  "Display IO of debugged program in a new frame."
+  (interactive)
+  (if gdb-use-separate-io-buffer
+      (let ((special-display-regexps (append special-display-regexps '(".*")))
+            (special-display-frame-alist gdb-frame-parameters))
+        (display-buffer (gdb-get-buffer-create 'gdb-inferior-io)))))
+
+(defvar gdb-inferior-io-mode-map
+  (let ((map (make-sparse-keymap)))
+    (define-key map "\C-c\C-c" 'gdb-separate-io-interrupt)
+    (define-key map "\C-c\C-z" 'gdb-separate-io-stop)
+    (define-key map "\C-c\C-\\" 'gdb-separate-io-quit)
+    (define-key map "\C-c\C-d" 'gdb-separate-io-eof)
+    (define-key map "\C-d" 'gdb-separate-io-eof)
+    map))
+
+(define-derived-mode gdb-inferior-io-mode comint-mode "Inferior I/O"
+  "Major mode for gdb inferior-io."
+  :syntax-table nil :abbrev-table nil
+  ;; We want to use comint because it has various nifty and familiar
+  ;; features.  We don't need a process, but comint wants one, so create
+  ;; a dummy one.
+  (make-comint-in-buffer
+   (substring (buffer-name) 1 (- (length (buffer-name)) 1))
+   (current-buffer) "hexl")
+  (setq comint-input-sender 'gdb-inferior-io-sender))
+
+(defun gdb-inferior-io-sender (proc string)
+  ;; PROC is the pseudo-process created to satisfy comint.
+  (with-current-buffer (process-buffer proc)
+    (setq proc (get-buffer-process gud-comint-buffer))
+    (process-send-string proc string)
+    (process-send-string proc "\n")))
+
+(defun gdb-separate-io-interrupt ()
+  "Interrupt the program being debugged."
+  (interactive)
+  (interrupt-process
+   (get-buffer-process gud-comint-buffer) comint-ptyp))
+
+(defun gdb-separate-io-quit ()
+  "Send quit signal to the program being debugged."
+  (interactive)
+  (quit-process
+   (get-buffer-process gud-comint-buffer) comint-ptyp))
+
+(defun gdb-separate-io-stop ()
+  "Stop the program being debugged."
+  (interactive)
+  (stop-process
+   (get-buffer-process gud-comint-buffer) comint-ptyp))
+
+(defun gdb-separate-io-eof ()
+  "Send end-of-file to the program being debugged."
+  (interactive)
+  (process-send-eof
+   (get-buffer-process gud-comint-buffer)))
+
+
+;; gdb communications
+;;
+
+;; INPUT: things sent to gdb
+;;
+;; The queues are lists.  Each element is either a string (indicating user or
+;; user-like input) or a list of the form:
+;;
+;;    (INPUT-STRING  HANDLER-FN)
+;;
+;; The handler function will be called from the partial-output buffer when the
+;; command completes.  This is the way to write commands which invoke gdb
+;; commands autonomously.
+;;
+;; These lists are consumed tail first.
+;;
+
+(defun gdb-send (proc string)
+  "A comint send filter for gdb.
+This filter may simply queue input for a later time."
+  (if gdb-ready
+      (progn
+        (with-current-buffer gud-comint-buffer
+          (let ((inhibit-read-only t))
+            (remove-text-properties (point-min) (point-max) '(face))))
+        (if gud-running
+            (progn
+              (let ((item (concat string "\n")))
+                (if gdb-enable-debug (push (cons 'send item) gdb-debug-log))
+                (process-send-string proc item)))
+          (if (string-match "\\\\\\'" string)
+              (setq gdb-continuation (concat gdb-continuation string "\n"))
+            (let ((item (concat
+                         gdb-continuation string
+                         (if (not comint-input-sender-no-newline) "\n"))))
+              (gdb-enqueue-input item)
+              (setq gdb-continuation nil)))))
+    (push (concat string "\n")  gdb-early-user-input)))
+
+;; Note: Stuff enqueued here will be sent to the next prompt, even if it
+;; is a query, or other non-top-level prompt.
+
+(defun gdb-enqueue-input (item)
+  (if (not gud-running)
+      (if gdb-prompting
+          (progn
+            (gdb-send-item item)
+            (setq gdb-prompting nil))
+        (push item gdb-input-queue))))
+
+(defun gdb-dequeue-input ()
+  (let ((queue gdb-input-queue))
+    (if queue
+        (let ((last (car (last queue))))
+          (unless (nbutlast queue) (setq gdb-input-queue '()))
+          last)
+      ;; This should be nil here anyway but set it just to make sure.
+      (setq gdb-pending-triggers nil))))
+
+(defun gdb-send-item (item)
+  (setq gdb-flush-pending-output nil)
+  (if gdb-enable-debug (push (cons 'send-item item) gdb-debug-log))
+  (setq gdb-current-item item)
+  (let ((process (get-buffer-process gud-comint-buffer)))
+    (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+        (if (stringp item)
+            (progn
+              (setq gdb-output-sink 'user)
+              (process-send-string process item))
+          (progn
+            (gdb-clear-partial-output)
+            (setq gdb-output-sink 'pre-emacs)
+            (process-send-string process
+                                 (car item))))
+      ;; case: eq gud-minor-mode 'gdbmi
+      (gdb-clear-partial-output)
+      (setq gdb-output-sink 'emacs)
+      (process-send-string process (car item)))))
+
+;;
+;; output -- things gdb prints to emacs
+;;
+;; GDB output is a stream interrupted by annotations.
+;; Annotations can be recognized by their beginning
+;; with \C-j\C-z\C-z<tag><opt>\C-j
+;;
+;; The tag is a string obeying symbol syntax.
+;;
+;; The optional part `<opt>' can be either the empty string
+;; or a space followed by more data relating to the annotation.
+;; For example, the SOURCE annotation is followed by a filename,
+;; line number and various useless goo.  This data must not include
+;; any newlines.
+;;
+
+(defcustom gud-gdb-command-name "gdb --annotate=3"
+  "Default command to execute an executable under the GDB debugger.
+The option \"--annotate=3\" must be included in this value if you
+want the GDB Graphical Interface."
+  :type 'string
+  :group 'gud
+  :version "22.1")
+
+(defvar gdb-annotation-rules
+  '(("pre-prompt" gdb-pre-prompt)
+    ("prompt" gdb-prompt)
+    ("commands" gdb-subprompt)
+    ("overload-choice" gdb-subprompt)
+    ("query" gdb-subprompt)
+    ;; Need this prompt for GDB 6.1
+    ("nquery" gdb-subprompt)
+    ("prompt-for-continue" gdb-subprompt)
+    ("post-prompt" gdb-post-prompt)
+    ("source" gdb-source)
+    ("starting" gdb-starting)
+    ("exited" gdb-exited)
+    ("signalled" gdb-signalled)
+    ("signal" gdb-signal)
+    ("breakpoint" gdb-stopping)
+    ("watchpoint" gdb-stopping)
+    ("frame-begin" gdb-frame-begin)
+    ("stopped" gdb-stopped)
+    ("error-begin" gdb-error)
+    ("error" gdb-error)
+    ("new-thread" (lambda (ignored)
+                    (gdb-get-buffer-create 'gdb-threads-buffer)))
+    ("thread-changed" gdb-thread-changed))
+  "An assoc mapping annotation tags to functions which process them.")
+
+(defun gdb-resync()
+  (setq gdb-flush-pending-output t)
+  (setq gud-running nil)
+  (gdb-force-mode-line-update
+   (propertize "stopped" 'face font-lock-warning-face))
+  (setq gdb-output-sink 'user)
+  (setq gdb-input-queue nil)
+  (setq gdb-pending-triggers nil)
+  (setq gdb-prompting t))
+
+(defconst gdb-source-spec-regexp
+  "\\(.*\\):\\([0-9]*\\):[0-9]*:[a-z]*:0x0*\\([a-f0-9]*\\)")
+
+;; Do not use this except as an annotation handler.
+(defun gdb-source (args)
+  (string-match gdb-source-spec-regexp args)
+  ;; Extract the frame position from the marker.
+  (setq gud-last-frame
+        (cons
+         (match-string 1 args)
+         (string-to-number (match-string 2 args))))
+  (setq gdb-pc-address (match-string 3 args))
+  ;; cover for auto-display output which comes *before*
+  ;; stopped annotation
+  (if (eq gdb-output-sink 'inferior) (setq gdb-output-sink 'user)))
+
+(defun gdb-pre-prompt (ignored)
+  "An annotation handler for `pre-prompt'.
+This terminates the collection of output from a previous command if that
+happens to be in effect."
+  (setq gdb-error nil)
+  (let ((sink gdb-output-sink))
+    (cond
+     ((eq sink 'user) t)
+     ((eq sink 'emacs)
+      (setq gdb-output-sink 'post-emacs))
+     (t
+      (gdb-resync)
+      (error "Phase error in gdb-pre-prompt (got %s)" sink)))))
+
+(defun gdb-prompt (ignored)
+  "An annotation handler for `prompt'.
+This sends the next command (if any) to gdb."
+  (when gdb-first-prompt
+    (gdb-force-mode-line-update
+     (propertize "initializing..." 'face font-lock-variable-name-face))
+    (gdb-init-1)
+    (setq gdb-first-prompt nil))
+  (let ((sink gdb-output-sink))
+    (cond
+     ((eq sink 'user) t)
+     ((eq sink 'post-emacs)
+      (setq gdb-output-sink 'user)
+      (let ((handler
+             (car (cdr gdb-current-item))))
+        (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
+          (funcall handler))))
+     (t
+      (gdb-resync)
+      (error "Phase error in gdb-prompt (got %s)" sink))))
+  (let ((input (gdb-dequeue-input)))
+    (if input
+        (gdb-send-item input)
+      (progn
+        (setq gdb-prompting t)
+        (gud-display-frame)
+        (setq gdb-early-user-input (nreverse gdb-early-user-input))
+        (while gdb-early-user-input
+            (gdb-enqueue-input (car gdb-early-user-input))
+            (setq gdb-early-user-input (cdr gdb-early-user-input)))))))
+
+(defun gdb-subprompt (ignored)
+  "An annotation handler for non-top-level prompts."
+  (setq gdb-prompting t))
+
+(defun gdb-starting (ignored)
+  "An annotation handler for `starting'.
+This says that I/O for the subprocess is now the program being debugged,
+not GDB."
+  (setq gdb-active-process t)
+  (setq gdb-printing t)
+  (let ((sink gdb-output-sink))
+    (cond
+     ((eq sink 'user)
+      (progn
+        (setq gud-running t)
+        (setq gdb-stack-update t)
+        ;; Temporarily set gud-running to nil to force "info stack" onto queue.
+        (let ((gud-running nil))
+          (gdb-invalidate-frames)
+          (unless (or gdb-register-names
+                      (string-equal gdb-version "pre-6.4"))                   
+            (gdb-enqueue-input
+             (list "server interpreter mi -data-list-register-names\n"
+                   'gdb-get-register-names))))
+        (setq gdb-inferior-status "running")
+        (setq gdb-signalled nil)
+        (gdb-force-mode-line-update
+         (propertize gdb-inferior-status 'face font-lock-type-face))
+        (gdb-remove-text-properties)
+        (setq gud-old-arrow gud-overlay-arrow-position)
+        (setq gud-overlay-arrow-position nil)
+        (setq gdb-overlay-arrow-position nil)
+        (setq gdb-stack-position nil)
+        (if gdb-use-separate-io-buffer
+            (setq gdb-output-sink 'inferior))))
+     (t
+      (gdb-resync)
+      (error "Unexpected `starting' annotation")))))
+
+(defun gdb-signal (ignored)
+  (setq gdb-inferior-status "signal")
+  (gdb-force-mode-line-update
+   (propertize gdb-inferior-status 'face font-lock-warning-face))
+  (gdb-stopping ignored))
+
+(defun gdb-stopping (ignored)
+  "An annotation handler for `breakpoint' and other annotations.
+They say that I/O for the subprocess is now GDB, not the program
+being debugged."
+  (if gdb-use-separate-io-buffer
+      (let ((sink gdb-output-sink))
+        (cond
+         ((eq sink 'inferior)
+          (setq gdb-output-sink 'user))
+         (t
+          (gdb-resync)
+          (error "Unexpected stopping annotation"))))))
+
+(defun gdb-exited (ignored)
+  "An annotation handler for `exited' and `signalled'.
+They say that I/O for the subprocess is now GDB, not the program
+being debugged and that the program is no longer running.  This
+function is used to change the focus of GUD tooltips to #define
+directives."
+  (setq gdb-active-process nil)
+  (setq gud-overlay-arrow-position nil)
+  (setq gdb-overlay-arrow-position nil)
+  (setq gdb-stack-position nil)
+  (setq gud-old-arrow nil)
+  (setq gdb-inferior-status "exited")
+  (gdb-force-mode-line-update
+   (propertize gdb-inferior-status 'face font-lock-warning-face))
+  (gdb-stopping ignored))
+
+(defun gdb-signalled (ignored)
+  (setq gdb-signalled t))
+
+(defun gdb-frame-begin (ignored)
+  (setq gdb-frame-begin t)
+  (setq gdb-printing nil)
+  (let ((sink gdb-output-sink))
+    (cond
+     ((eq sink 'inferior)
+      (setq gdb-output-sink 'user))
+     ((eq sink 'user) t)
+     ((eq sink 'emacs) t)
+     (t
+      (gdb-resync)
+      (error "Unexpected frame-begin annotation (%S)" sink)))))
+
+(defcustom gdb-same-frame (not focus-follows-mouse)
+  "Non-nil means pop up GUD buffer in same frame."
+  :group 'gdb
+  :type 'boolean
+  :version "22.1")
+
+(defcustom gdb-find-source-frame nil
+  "Non-nil means try to find a source frame further up stack e.g after signal."
+  :group 'gdb
+  :type 'boolean
+  :version "22.1")
+
+(defun gdb-find-source-frame (arg)
+  "Toggle looking for a source frame further up call stack.
+The code associated with current (innermost) frame may not have
+been compiled with debug information, e.g., C library routine.
+With prefix argument ARG, look for a source frame further up
+stack to display in the source buffer if ARG is positive,
+otherwise don't look further up."
+  (interactive "P")
+  (setq gdb-find-source-frame
+        (if (null arg)
+            (not gdb-find-source-frame)
+          (> (prefix-numeric-value arg) 0)))
+  (message (format "Looking for source frame %sabled"
+                   (if gdb-find-source-frame "en" "dis"))))
+
+(defun gdb-stopped (ignored)
+  "An annotation handler for `stopped'.
+It is just like `gdb-stopping', except that if we already set the output
+sink to `user' in `gdb-stopping', that is fine."
+  (setq gud-running nil)
+  (unless (or gud-overlay-arrow-position gud-last-frame)
+    (if (and gdb-frame-begin gdb-printing)
+        (setq gud-overlay-arrow-position gud-old-arrow)
+    ;;Pop up GUD buffer to display current frame when it doesn't have source
+    ;;information i.e if not compiled with -g as with libc routines generally.
+    (if gdb-same-frame
+        (gdb-display-gdb-buffer)
+      (gdb-frame-gdb-buffer))
+    (if gdb-find-source-frame
+    ;;Try to find source further up stack e.g after signal.
+        (setq gdb-look-up-stack
+              (if (gdb-get-buffer 'gdb-stack-buffer)
+                  'keep
+                (progn
+                  (gdb-get-buffer-create 'gdb-stack-buffer)
+                  (gdb-invalidate-frames)
+                  'delete))))))
+  (unless (member gdb-inferior-status '("exited" "signal"))
+    (setq gdb-active-process t) ;Just for attaching case.
+    (setq gdb-inferior-status "stopped")
+    (gdb-force-mode-line-update
+     (propertize gdb-inferior-status 'face font-lock-warning-face)))
+  (let ((sink gdb-output-sink))
+    (cond
+     ((eq sink 'inferior)
+      (setq gdb-output-sink 'user))
+     ((eq sink 'user) t)
+     (t
+      (gdb-resync)
+      (error "Unexpected stopped annotation"))))
+  (if gdb-signalled (gdb-exited ignored)))
+
+(defun gdb-error (ignored)
+  (setq gdb-error (not gdb-error)))
+
+(defun gdb-thread-changed (ignored)
+  (gdb-frames-force-update))
+
+(defun gdb-post-prompt (ignored)
+  "An annotation handler for `post-prompt'.
+This begins the collection of output from the current command if that
+happens to be appropriate."
+  ;; Don't add to queue if there outstanding items or gdb-version is not known
+  ;; yet.
+  (unless (or gdb-pending-triggers gdb-first-post-prompt)
+    (gdb-get-selected-frame)
+    (gdb-invalidate-frames)
+    ;; Regenerate breakpoints buffer in case it has been inadvertantly deleted.
+    (gdb-get-buffer-create 'gdb-breakpoints-buffer)
+    (gdb-invalidate-breakpoints)
+    ;; Do this through gdb-get-selected-frame -> gdb-frame-handler
+    ;; so gdb-pc-address is updated.
+    ;; (gdb-invalidate-assembler)
+
+    (if (string-equal gdb-version "pre-6.4")
+        (gdb-invalidate-registers)
+      (gdb-get-changed-registers)
+      (gdb-invalidate-registers-1))
+
+    (gdb-invalidate-memory)
+    (if (string-equal gdb-version "pre-6.4")
+        (gdb-invalidate-locals)
+      (gdb-invalidate-locals-1))
+
+    (gdb-invalidate-threads)
+    (unless (or (null gdb-var-list)
+             (eq system-type 'darwin)) ;Breaks on Darwin's GDB-5.3.
+      ;; FIXME: with GDB-6 on Darwin, this might very well work.
+      ;; Only needed/used with speedbar/watch expressions.
+      (when (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame))
+        (if (string-equal gdb-version "pre-6.4")
+            (gdb-var-update)
+          (gdb-var-update-1)))))
+  (setq gdb-first-post-prompt nil)
+  (let ((sink gdb-output-sink))
+    (cond
+     ((eq sink 'user) t)
+     ((eq sink 'pre-emacs)
+      (setq gdb-output-sink 'emacs))
+     (t
+      (gdb-resync)
+      (error "Phase error in gdb-post-prompt (got %s)" sink)))))
+
+(defconst gdb-buffer-list
+'(gdb-stack-buffer gdb-locals-buffer gdb-registers-buffer gdb-threads-buffer))
+
+(defun gdb-remove-text-properties ()
+  (dolist (buffertype gdb-buffer-list)
+    (let ((buffer (gdb-get-buffer buffertype)))
+      (if buffer
+          (with-current-buffer buffer
+            (let ((inhibit-read-only t))
+              (remove-text-properties
+               (point-min) (point-max) '(mouse-face nil help-echo nil))))))))
+
+;; GUD displays the selected GDB frame.  This might might not be the current
+;; GDB frame (after up, down etc).  If no GDB frame is visible but the last
+;; visited breakpoint is, use that window.
+(defun gdb-display-source-buffer (buffer)
+  (let* ((last-window (if gud-last-last-frame
+                         (get-buffer-window
+                          (gud-find-file (car gud-last-last-frame)))))
+         (source-window (or last-window
+                            (if (and gdb-source-window
+                                     (window-live-p gdb-source-window))
+                                gdb-source-window))))
+    (when source-window
+      (setq gdb-source-window source-window)
+      (set-window-buffer source-window buffer))
+    source-window))
+
+;; Derived from gud-gdb-marker-regexp
+(defvar gdb-fullname-regexp
+  (concat "\\(.:?[^" ":" "\n]*\\)" ":" "\\([0-9]*\\)" ":" ".*"))
+
+(defun gud-gdba-marker-filter (string)
+  "A gud marker filter for gdb.  Handle a burst of output from GDB."
+  (if gdb-flush-pending-output
+      nil
+    (when gdb-enable-debug
+        (push (cons 'recv string) gdb-debug-log)
+        (if (and gdb-debug-log-max
+                 (> (length gdb-debug-log) gdb-debug-log-max))
+            (setcdr (nthcdr (1- gdb-debug-log-max) gdb-debug-log) nil)))
+    ;; Recall the left over gud-marker-acc from last time.
+    (setq gud-marker-acc (concat gud-marker-acc string))
+    ;; Start accumulating output for the GUD buffer.
+    (let ((output ""))
+      ;;
+      ;; Process all the complete markers in this chunk.
+      (while (string-match "\n\032\032\\(.*\\)\n" gud-marker-acc)
+        (let ((annotation (match-string 1 gud-marker-acc))
+              (before (substring gud-marker-acc 0 (match-beginning 0)))
+              (after (substring gud-marker-acc (match-end 0))))
+          ;;
+          ;; Parse the tag from the annotation, and maybe its arguments.
+          (string-match "\\(\\S-*\\) ?\\(.*\\)" annotation)
+          (let* ((annotation-type (match-string 1 annotation))
+                 (annotation-arguments (match-string 2 annotation))
+                 (annotation-rule (assoc annotation-type
+                                         gdb-annotation-rules)))
+
+            ;; Stuff prior to the match is just ordinary output.
+            ;; It is either concatenated to OUTPUT or directed
+            ;; elsewhere.
+            (setq output (gdb-concat-output output before))
+
+            ;; Take that stuff off the gud-marker-acc.
+            (setq gud-marker-acc after)
+
+            ;; Call the handler for this annotation.
+            (if annotation-rule
+                (funcall (car (cdr annotation-rule))
+                         annotation-arguments))
+
+            ;; Else the annotation is not recognized.  Ignore it silently,
+            ;; so that GDB can add new annotations without causing
+            ;; us to blow up.
+            )))
+
+      ;; Does the remaining text end in a partial line?
+      ;; If it does, then keep part of the gud-marker-acc until we get more.
+      (if (string-match "\n\\'\\|\n\032\\'\\|\n\032\032.*\\'"
+                        gud-marker-acc)
+          (progn
+            ;; Everything before the potential marker start can be output.
+            (setq output
+                  (gdb-concat-output output
+                                     (substring gud-marker-acc 0
+                                                (match-beginning 0))))
+            ;;
+            ;; Everything after, we save, to combine with later input.
+            (setq gud-marker-acc (substring gud-marker-acc
+                                            (match-beginning 0))))
+        ;;
+        ;; In case we know the gud-marker-acc contains no partial annotations:
+        (progn
+          (setq output (gdb-concat-output output gud-marker-acc))
+          (setq gud-marker-acc "")))
+      output)))
+
+(defun gdb-concat-output (so-far new)
+  (if gdb-error
+      (put-text-property 0 (length new) 'face font-lock-warning-face new))
+  (let ((sink gdb-output-sink))
+    (cond
+     ((eq sink 'user) (concat so-far new))
+     ((or (eq sink 'pre-emacs) (eq sink 'post-emacs)) so-far)
+     ((eq sink 'emacs)
+      (gdb-append-to-partial-output new)
+      so-far)
+     ((eq sink 'inferior)
+      (gdb-append-to-inferior-io new)
+      so-far)
+     (t
+      (gdb-resync)
+      (error "Bogon output sink %S" sink)))))
+
+(defun gdb-append-to-partial-output (string)
+  (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
+    (goto-char (point-max))
+    (insert string)))
+
+(defun gdb-clear-partial-output ()
+  (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
+    (erase-buffer)))
+
+(defun gdb-append-to-inferior-io (string)
+  (with-current-buffer (gdb-get-buffer-create 'gdb-inferior-io)
+    (goto-char (point-max))
+    (insert-before-markers string))
+  (if (not (string-equal string ""))
+      (gdb-display-buffer (gdb-get-buffer-create 'gdb-inferior-io) t)))
+
+(defun gdb-clear-inferior-io ()
+  (with-current-buffer (gdb-get-buffer-create 'gdb-inferior-io)
+    (erase-buffer)))
+
+(defun gdb-jsonify-buffer (&optional fix-key fix-list)
+  "Prepare GDB/MI output in current buffer for parsing with `json-read'.
+
+Field names are wrapped in double quotes and equal signs are
+replaced with semicolons.
+
+If FIX-KEY is non-nil, strip all \"FIX-KEY=\" occurences from
+partial output. This is used to get rid of useless keys in lists
+in MI messages, e.g.: [key=.., key=..]. -stack-list-frames and
+-break-info are examples of MI commands which issue such
+responses.
+
+If FIX-LIST is non-nil, \"FIX-LIST={..}\" is replaced with
+\"FIX-LIST=[..]\" prior to parsing. This is used to fix broken
+-break-info output when it contains breakpoint script field
+incompatible with GDB/MI output syntax."
+  (save-excursion
+    (goto-char (point-min))
+    ;; Sometimes missing symbol information precedes "^done" record.
+    (re-search-forward "[[:ascii:]]*?\\^done," nil t)
+    (replace-match "")
+    (re-search-forward "(gdb) \n" nil t)
+    (replace-match "")
+    (goto-char (point-min))
+    (when fix-key
+      (save-excursion
+        (while (re-search-forward (concat "[\\[,]\\(" fix-key "=\\)") nil t)
+          (replace-match "" nil nil nil 1))))
+    (when fix-list
+      (save-excursion
+        ;; Find positions of braces which enclose broken list
+        (while (re-search-forward (concat fix-list "={\"") nil t)
+          (let ((p1 (goto-char (- (point) 2)))
+                (p2 (progn (forward-sexp)
+                           (1- (point)))))
+            ;; Replace braces with brackets
+            (save-excursion
+              (goto-char p1)
+              (delete-char 1)
+              (insert "[")
+              (goto-char p2)
+              (delete-char 1)
+              (insert "]"))))))
+    (goto-char (point-min))
+    (insert "{")
+    (while (re-search-forward
+            "\\([[:alnum:]-_]+\\)=\\({\\|\\[\\|\"\"\\|\".*?[^\\]\"\\)" nil t)
+      (replace-match "\"\\1\":\\2" nil nil))
+    (goto-char (point-max))
+    (insert "}")))
+
+(defun gdb-json-read-buffer (&optional fix-key fix-list)
+  "Prepare and parse GDB/MI output in current buffer with `json-read'.
+
+FIX-KEY and FIX-LIST work as in `gdb-jsonify-buffer'."
+  (gdb-jsonify-buffer fix-key fix-list)
+  (save-excursion
+    (goto-char (point-min))
+    (let ((json-array-type 'list))
+      (json-read))))
+
+(defun gdb-json-partial-output (&optional fix-key fix-list)
+  "Prepare and parse gdb-partial-output-buffer with `json-read'.
+
+FIX-KEY and FIX-KEY work as in `gdb-jsonify-buffer'."
+  (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
+    (gdb-json-read-buffer fix-key fix-list)))
+
+
+;; One trick is to have a command who's output is always available in a buffer
+;; of it's own, and is always up to date.  We build several buffers of this
+;; type.
+;;
+;; There are two aspects to this: gdb has to tell us when the output for that
+;; command might have changed, and we have to be able to run the command
+;; behind the user's back.
+;;
+;; The output phasing associated with the variable gdb-output-sink
+;; help us to run commands behind the user's back.
+;;
+;; Below is the code for specificly managing buffers of output from one
+;; command.
+;;
+
+;; The trigger function is suitable for use in the assoc GDB-ANNOTATION-RULES
+;; It adds an input for the command we are tracking.  It should be the
+;; annotation rule binding of whatever gdb sends to tell us this command
+;; might have changed it's output.
+;;
+;; NAME is the function name. DEMAND-PREDICATE tests if output is really needed.
+;; GDB-COMMAND is a string of such.  OUTPUT-HANDLER is the function bound to the
+;; input in the input queue (see comment about ``gdb communications'' above).
+
+(defmacro def-gdb-auto-update-trigger (name demand-predicate gdb-command
+                                            output-handler)
+  `(defun ,name (&optional ignored)
+     (if (and ,demand-predicate
+              (not (member ',name
+                           gdb-pending-triggers)))
+         (progn
+           (gdb-enqueue-input
+            (list ,gdb-command ',output-handler))
+           (push ',name gdb-pending-triggers)))))
+
+(defmacro def-gdb-auto-update-handler (name trigger buf-key custom-defun)
+  `(defun ,name ()
+     (setq gdb-pending-triggers
+      (delq ',trigger
+            gdb-pending-triggers))
+     (let ((buf (gdb-get-buffer ',buf-key)))
+       (and buf
+            (with-current-buffer buf
+              (let* ((window (get-buffer-window buf 0))
+                     (start (window-start window))
+                     (p (if window (window-point window) (point)))
+                    (buffer-read-only nil))
+                (erase-buffer)
+                (insert-buffer-substring (gdb-get-buffer-create
+                                          'gdb-partial-output-buffer))
+                (if window
+                    (progn
+                      (set-window-start window start)
+                      (set-window-point window p))
+                  (goto-char p))))))
+     ;; put customisation here
+     (,custom-defun)))
+
+(defmacro def-gdb-auto-updated-buffer (buffer-key
+                                       trigger-name gdb-command
+                                       output-handler-name custom-defun)
+  `(progn
+     (def-gdb-auto-update-trigger ,trigger-name
+       ;; The demand predicate:
+       (gdb-get-buffer ',buffer-key)
+       ,gdb-command
+       ,output-handler-name)
+     (def-gdb-auto-update-handler ,output-handler-name
+       ,trigger-name ,buffer-key ,custom-defun)))
+
+
+;;
+;; Breakpoint buffer : This displays the output of `info breakpoints'.
+;;
+(gdb-set-buffer-rules 'gdb-breakpoints-buffer
+                      'gdb-breakpoints-buffer-name
+                      'gdb-breakpoints-mode)
+
+(def-gdb-auto-updated-buffer gdb-breakpoints-buffer
+  ;; This defines the auto update rule for buffers of type
+  ;; `gdb-breakpoints-buffer'.
+  ;;
+  ;; It defines a function to serve as the annotation handler that
+  ;; handles the `foo-invalidated' message.  That function is called:
+  gdb-invalidate-breakpoints
+  ;;
+  ;; To update the buffer, this command is sent to gdb.
+  "server info breakpoints\n"
+  ;;
+  ;; This also defines a function to be the handler for the output
+  ;; from the command above.  That function will copy the output into
+  ;; the appropriately typed buffer.  That function will be called:
+  gdb-info-breakpoints-handler
+  ;; buffer specific functions
+  gdb-info-breakpoints-custom)
+
+(defconst breakpoint-xpm-data
+  "/* XPM */
+static char *magick[] = {
+/* columns rows colors chars-per-pixel */
+\"10 10 2 1\",
+\"  c red\",
+\"+ c None\",
+/* pixels */
+\"+++    +++\",
+\"++      ++\",
+\"+        +\",
+\"          \",
+\"          \",
+\"          \",
+\"          \",
+\"+        +\",
+\"++      ++\",
+\"+++    +++\",
+};"
+  "XPM data used for breakpoint icon.")
+
+(defconst breakpoint-enabled-pbm-data
+  "P1
+10 10\",
+0 0 0 0 1 1 1 1 0 0 0 0
+0 0 0 1 1 1 1 1 1 0 0 0
+0 0 1 1 1 1 1 1 1 1 0 0
+0 1 1 1 1 1 1 1 1 1 1 0
+0 1 1 1 1 1 1 1 1 1 1 0
+0 1 1 1 1 1 1 1 1 1 1 0
+0 1 1 1 1 1 1 1 1 1 1 0
+0 0 1 1 1 1 1 1 1 1 0 0
+0 0 0 1 1 1 1 1 1 0 0 0
+0 0 0 0 1 1 1 1 0 0 0 0"
+  "PBM data used for enabled breakpoint icon.")
+
+(defconst breakpoint-disabled-pbm-data
+  "P1
+10 10\",
+0 0 1 0 1 0 1 0 0 0
+0 1 0 1 0 1 0 1 0 0
+1 0 1 0 1 0 1 0 1 0
+0 1 0 1 0 1 0 1 0 1
+1 0 1 0 1 0 1 0 1 0
+0 1 0 1 0 1 0 1 0 1
+1 0 1 0 1 0 1 0 1 0
+0 1 0 1 0 1 0 1 0 1
+0 0 1 0 1 0 1 0 1 0
+0 0 0 1 0 1 0 1 0 0"
+  "PBM data used for disabled breakpoint icon.")
+
+(defvar breakpoint-enabled-icon nil
+  "Icon for enabled breakpoint in display margin.")
+
+(defvar breakpoint-disabled-icon nil
+  "Icon for disabled breakpoint in display margin.")
+
+(declare-function define-fringe-bitmap "fringe.c"
+                  (bitmap bits &optional height width align))
+
+(and (display-images-p)
+     ;; Bitmap for breakpoint in fringe
+     (define-fringe-bitmap 'breakpoint
+       "\x3c\x7e\xff\xff\xff\xff\x7e\x3c")
+     ;; Bitmap for gud-overlay-arrow in fringe
+     (define-fringe-bitmap 'hollow-right-triangle
+       "\xe0\x90\x88\x84\x84\x88\x90\xe0"))
+
+(defface breakpoint-enabled
+  '((t
+     :foreground "red1"
+     :weight bold))
+  "Face for enabled breakpoint icon in fringe."
+  :group 'gdb)
+
+(defface breakpoint-disabled
+  '((((class color) (min-colors 88)) :foreground "grey70")
+    ;; Ensure that on low-color displays that we end up something visible.
+    (((class color) (min-colors 8) (background light))
+     :foreground "black")
+    (((class color) (min-colors 8) (background dark))
+     :foreground "white")
+    (((type tty) (class mono))
+     :inverse-video t)
+    (t :background "gray"))
+  "Face for disabled breakpoint icon in fringe."
+  :group 'gdb)
+
+(defconst gdb-breakpoint-regexp
+  "\\(?:\\([0-9]+\\).*?\\(?:point\\|catch\\s-+\\S-+\\)\\s-+\\S-+\\|\\([0-9]+\\.[0-9]+\\)\\)\\s-+\\(.\\)\\s-+")
+
+;; Put breakpoint icons in relevant margins (even those set in the GUD buffer).
+(defun gdb-info-breakpoints-custom ()
+  (let ((flag) (bptno))
+    ;; Remove all breakpoint-icons in source buffers but not assembler buffer.
+    (dolist (buffer (buffer-list))
+      (with-current-buffer buffer
+        (if (and (memq gud-minor-mode '(gdba gdbmi))
+                 (not (string-match "\\` ?\\*.+\\*\\'" (buffer-name))))
+            (gdb-remove-breakpoint-icons (point-min) (point-max)))))
+    (with-current-buffer (gdb-get-buffer 'gdb-breakpoints-buffer)
+      (save-excursion
+        (let ((buffer-read-only nil))
+          (goto-char (point-min))
+          (while (< (point) (- (point-max) 1))
+            (forward-line 1)
+            (if (looking-at gdb-breakpoint-regexp)
+                (progn
+                  (setq bptno (or (match-string 1) (match-string 2)))
+                  (setq flag (char-after (match-beginning 3)))
+                  (if (match-string 1)
+                      (setq gdb-parent-bptno-enabled (eq flag ?y)))
+                  (add-text-properties
+                   (match-beginning 3) (match-end 3)
+                   (if (eq flag ?y)
+                       '(face font-lock-warning-face)
+                     '(face font-lock-type-face)))
+                  (let ((bl (point))
+                        (el (line-end-position)))
+                    (when (re-search-forward " in \\(.*\\) at" el t)
+                      (add-text-properties
+                       (match-beginning 1) (match-end 1)
+                       '(face font-lock-function-name-face)))
+                    (if (re-search-forward
+                         ".*\\s-+\\(\\S-+\\):\\([0-9]+\\)$" el t)
+                        (let ((line (match-string 2))
+                              (file (match-string 1)))
+                          (add-text-properties bl el
+                               '(mouse-face highlight
+                                 help-echo "mouse-2, RET: visit breakpoint"))
+                          (unless (file-exists-p file)
+                            (setq file (cdr (assoc bptno gdb-location-alist))))
+                          (if (and file
+                                   (not (string-equal file "File not found")))
+                              (with-current-buffer
+                                  (find-file-noselect file 'nowarn)
+                                (gdb-init-buffer)
+                                ;; Only want one breakpoint icon at each
+                                ;; location.
+                                (save-excursion
+                                  (goto-char (point-min))
+                                  (forward-line (1- (string-to-number line)))
+                                  (gdb-put-breakpoint-icon (eq flag ?y) bptno)))
+                            (gdb-enqueue-input
+                             (list
+                              (concat gdb-server-prefix "list "
+                                      (match-string-no-properties 1) ":1\n")
+                              'ignore))
+                            (gdb-enqueue-input
+                             (list (concat gdb-server-prefix "info source\n")
+                                   `(lambda () (gdb-get-location
+                                                ,bptno ,line ,flag))))))
+                      (if (re-search-forward
+                           "<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>"
+                           el t)
+                          (add-text-properties
+                           (match-beginning 1) (match-end 1)
+                           '(face font-lock-function-name-face))
+                        (end-of-line)
+                        (re-search-backward "\\s-\\(\\S-*\\)"
+                                            bl t)
+                        (add-text-properties
+                         (match-beginning 1) (match-end 1)
+                         '(face font-lock-variable-name-face)))))))
+            (end-of-line))))))
+  (if (gdb-get-buffer 'gdb-assembler-buffer) (gdb-assembler-custom))
+
+  ;; Breakpoints buffer is always present.  Hack to just update
+  ;; current frame if there's been no execution.
+  (if gdb-stack-update
+      (setq gdb-stack-update nil)
+    (if (gdb-get-buffer 'gdb-stack-buffer) (gdb-info-stack-custom))))
+
+(declare-function gud-remove "gdb-ui" t t) ; gud-def
+(declare-function gud-break  "gdb-ui" t t) ; gud-def
+(declare-function fringe-bitmaps-at-pos "fringe.c" (&optional pos window))
+
+(defun gdb-mouse-set-clear-breakpoint (event)
+  "Set/clear breakpoint in left fringe/margin at mouse click.
+If not in a source or disassembly buffer just set point."
+  (interactive "e")
+  (mouse-minibuffer-check event)
+  (let ((posn (event-end event)))
+    (with-selected-window (posn-window posn)
+      (if (or (buffer-file-name) (eq major-mode 'gdb-assembler-mode))
+          (if (numberp (posn-point posn))
+              (save-excursion
+                (goto-char (posn-point posn))
+                (if (or (posn-object posn)
+                        (eq (car (fringe-bitmaps-at-pos (posn-point posn)))
+                            'breakpoint))
+                    (gud-remove nil)
+                  (gud-break nil)))))
+      (posn-set-point posn))))
+
+(defun gdb-mouse-toggle-breakpoint-margin (event)
+  "Enable/disable breakpoint in left margin with mouse click."
+  (interactive "e")
+  (mouse-minibuffer-check event)
+  (let ((posn (event-end event)))
+    (if (numberp (posn-point posn))
+        (with-selected-window (posn-window posn)
+          (save-excursion
+            (goto-char (posn-point posn))
+            (if (posn-object posn)
+                (let* ((bptno (get-text-property
+                               0 'gdb-bptno (car (posn-string posn)))))
+                  (string-match "\\([0-9+]\\)*" bptno)
+                  (gdb-enqueue-input
+                   (list
+                    (concat gdb-server-prefix
+                            (if (get-text-property
+                                 0 'gdb-enabled (car (posn-string posn)))
+                                "disable "
+                              "enable ")
+                            (match-string 1 bptno) "\n")
+                   'ignore)))))))))
+
+(defun gdb-mouse-toggle-breakpoint-fringe (event)
+  "Enable/disable breakpoint in left fringe with mouse click."
+  (interactive "e")
+  (mouse-minibuffer-check event)
+  (let* ((posn (event-end event))
+         (pos (posn-point posn))
+         obj)
+    (when (numberp pos)
+      (with-selected-window (posn-window posn)
+        (with-current-buffer (window-buffer (selected-window))
+          (goto-char pos)
+          (dolist (overlay (overlays-in pos pos))
+            (when (overlay-get overlay 'put-break)
+              (setq obj (overlay-get overlay 'before-string))))
+          (when (stringp obj)
+            (let* ((bptno (get-text-property 0 'gdb-bptno obj)))
+              (string-match "\\([0-9+]\\)*" bptno)
+              (gdb-enqueue-input
+               (list
+                (concat gdb-server-prefix
+                        (if (get-text-property 0 'gdb-enabled obj)
+                            "disable "
+                          "enable ")
+                        (match-string 1 bptno) "\n")
+                'ignore)))))))))
+
+(defun gdb-breakpoints-buffer-name ()
+  (with-current-buffer gud-comint-buffer
+    (concat "*breakpoints of " (gdb-get-target-string) "*")))
+
+(defun gdb-display-breakpoints-buffer ()
+  "Display status of user-settable breakpoints."
+  (interactive)
+  (gdb-display-buffer
+   (gdb-get-buffer-create 'gdb-breakpoints-buffer) t))
+
+(defun gdb-frame-breakpoints-buffer ()
+  "Display status of user-settable breakpoints in a new frame."
+  (interactive)
+  (let ((special-display-regexps (append special-display-regexps '(".*")))
+        (special-display-frame-alist gdb-frame-parameters))
+    (display-buffer (gdb-get-buffer-create 'gdb-breakpoints-buffer))))
+
+(defvar gdb-breakpoints-mode-map
+  (let ((map (make-sparse-keymap))
+        (menu (make-sparse-keymap "Breakpoints")))
+    (define-key menu [quit] '("Quit"   . gdb-delete-frame-or-window))
+    (define-key menu [goto] '("Goto"   . gdb-goto-breakpoint))
+    (define-key menu [delete] '("Delete" . gdb-delete-breakpoint))
+    (define-key menu [toggle] '("Toggle" . gdb-toggle-breakpoint))
+    (suppress-keymap map)
+    (define-key map [menu-bar breakpoints] (cons "Breakpoints" menu))
+    (define-key map " " 'gdb-toggle-breakpoint)
+    (define-key map "D" 'gdb-delete-breakpoint)
+    ;; Don't bind "q" to kill-this-buffer as we need it for breakpoint icons.
+    (define-key map "q" 'gdb-delete-frame-or-window)
+    (define-key map "\r" 'gdb-goto-breakpoint)
+    (define-key map [mouse-2] 'gdb-goto-breakpoint)
+    (define-key map [follow-link] 'mouse-face)
+    map))
+
+(defun gdb-delete-frame-or-window ()
+  "Delete frame if there is only one window.  Otherwise delete the window."
+  (interactive)
+  (if (one-window-p) (delete-frame)
+    (delete-window)))
+
+;;from make-mode-line-mouse-map
+(defun gdb-make-header-line-mouse-map (mouse function) "\
+Return a keymap with single entry for mouse key MOUSE on the header line.
+MOUSE is defined to run function FUNCTION with no args in the buffer
+corresponding to the mode line clicked."
+  (let ((map (make-sparse-keymap)))
+    (define-key map (vector 'header-line mouse) function)
+    (define-key map (vector 'header-line 'down-mouse-1) 'ignore)
+    map))
+
+(defmacro gdb-propertize-header (name buffer help-echo mouse-face face)
+  `(propertize ,name
+               'help-echo ,help-echo 
+               'mouse-face ',mouse-face
+               'face ',face
+               'local-map
+               (gdb-make-header-line-mouse-map
+                'mouse-1
+                (lambda (event) (interactive "e")
+                  (save-selected-window
+                    (select-window (posn-window (event-start event)))
+                    (set-window-dedicated-p (selected-window) nil)
+                    (switch-to-buffer
+                     (gdb-get-buffer-create ',buffer))
+                    (setq header-line-format(gdb-set-header ',buffer))
+                    (set-window-dedicated-p (selected-window) t))))))
+
+(defun gdb-set-header (buffer)
+  (cond ((eq buffer 'gdb-locals-buffer)
+         (list
+          (gdb-propertize-header "Locals" gdb-locals-buffer
+                                 nil nil mode-line)
+          " "
+          (gdb-propertize-header "Registers" gdb-registers-buffer
+                                 "mouse-1: select" mode-line-highlight mode-line-inactive)))
+        ((eq buffer 'gdb-registers-buffer)
+         (list
+          (gdb-propertize-header "Locals" gdb-locals-buffer
+                                 "mouse-1: select" mode-line-highlight mode-line-inactive)
+          " "
+          (gdb-propertize-header "Registers" gdb-registers-buffer
+                                 nil nil mode-line)))
+        ((eq buffer 'gdb-breakpoints-buffer)
+         (list
+          (gdb-propertize-header "Breakpoints" gdb-breakpoints-buffer
+                                 nil nil mode-line)
+          " "
+          (gdb-propertize-header "Threads" gdb-threads-buffer
+                                 "mouse-1: select" mode-line-highlight mode-line-inactive)))
+        ((eq buffer 'gdb-threads-buffer)
+         (list
+          (gdb-propertize-header "Breakpoints" gdb-breakpoints-buffer
+                                 "mouse-1: select" mode-line-highlight mode-line-inactive)
+          " "
+          (gdb-propertize-header "Threads" gdb-threads-buffer
+                                 nil nil mode-line)))))
+
+(defvar gdb-breakpoints-header
+  (list
+   (gdb-propertize-header "Breakpoints" gdb-breakpoints-buffer
+                          nil nil mode-line)
+   " "
+   (gdb-propertize-header "Threads" gdb-threads-buffer
+                          "mouse-1: select" mode-line-highlight mode-line-inactive)))
+
+(defun gdb-breakpoints-mode ()
+  "Major mode for gdb breakpoints.
+
+\\{gdb-breakpoints-mode-map}"
+  (kill-all-local-variables)
+  (setq major-mode 'gdb-breakpoints-mode)
+  (setq mode-name "Breakpoints")
+  (use-local-map gdb-breakpoints-mode-map)
+  (setq buffer-read-only t)
+  (buffer-disable-undo)
+  (setq header-line-format gdb-breakpoints-header)
+  (run-mode-hooks 'gdb-breakpoints-mode-hook)
+  (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+      'gdb-invalidate-breakpoints
+    'gdbmi-invalidate-breakpoints))
+
+(defun gdb-toggle-breakpoint ()
+  "Enable/disable breakpoint at current line."
+  (interactive)
+  (save-excursion
+    (beginning-of-line 1)
+    (if (looking-at gdb-breakpoint-regexp)
+        (gdb-enqueue-input
+         (list
+          (concat gdb-server-prefix
+                  (if (eq ?y (char-after (match-beginning 3)))
+                      "disable "
+                    "enable ")
+                  (or (match-string 1) (match-string 2)) "\n") 'ignore))
+      (error "Not recognized as break/watchpoint line"))))
+
+(defun gdb-delete-breakpoint ()
+  "Delete the breakpoint at current line."
+  (interactive)
+  (save-excursion
+    (beginning-of-line 1)
+    (if (looking-at gdb-breakpoint-regexp)
+        (if (match-string 1)
+            (gdb-enqueue-input
+             (list
+              (concat gdb-server-prefix "delete " (match-string 1) "\n")
+              'ignore))
+          (message-box "This breakpoint cannot be deleted on its own."))
+      (error "Not recognized as break/watchpoint line"))))
+
+(defun gdb-goto-breakpoint (&optional event)
+  "Display the breakpoint location specified at current line."
+  (interactive (list last-input-event))
+  (if event (posn-set-point (event-end event)))
+  (save-excursion
+    (beginning-of-line 1)
+    (if (looking-at "\\([0-9]+\\.?[0-9]*\\) .*\\s-+\\(\\S-+\\):\\([0-9]+\\)$")
+        (let ((bptno (match-string 1))
+              (file  (match-string 2))
+              (line  (match-string 3)))
+          (save-selected-window
+            (let* ((buffer (find-file-noselect
+                         (if (file-exists-p file) file
+                           (cdr (assoc bptno gdb-location-alist)))))
+                   (window (or (gdb-display-source-buffer buffer)
+                               (display-buffer buffer))))
+              (setq gdb-source-window window)
+              (with-current-buffer buffer
+                (goto-char (point-min))
+                (forward-line (1- (string-to-number line)))
+                (set-window-point window (point))))))
+      (error "No location specified."))))
+
+
+;; Frames buffer.  This displays a perpetually correct backtrace
+;; (from the command `where').
+;;
+;; Alas, if your stack is deep, it is costly.
+;;
+(defcustom gdb-max-frames 40
+  "Maximum number of frames displayed in call stack."
+  :type 'integer
+  :group 'gdb
+  :version "22.1")
+
+(gdb-set-buffer-rules 'gdb-stack-buffer
+                      'gdb-stack-buffer-name
+                      'gdb-frames-mode)
+
+(def-gdb-auto-updated-buffer gdb-stack-buffer
+  gdb-invalidate-frames
+  (concat "server info stack " (number-to-string gdb-max-frames) "\n")
+  gdb-info-stack-handler
+  gdb-info-stack-custom)
+
+;; This may be more important for embedded targets where unwinding the
+;; stack may take a long time.
+(defadvice gdb-invalidate-frames (around gdb-invalidate-frames-advice
+                                         (&optional ignored) activate compile)
+  "Only queue \"info stack\" if execution has occurred."
+  (if gdb-stack-update ad-do-it))
+
+(defun gdb-info-stack-custom ()
+  (with-current-buffer (gdb-get-buffer 'gdb-stack-buffer)
+    (let (move-to)
+      (save-excursion
+        (unless (eq gdb-look-up-stack 'delete)
+          (let ((buffer-read-only nil)
+                bl el)
+            (goto-char (point-min))
+            (while (< (point) (point-max))
+              (setq bl (line-beginning-position)
+                    el (line-end-position))
+              (when (looking-at "#")
+                (add-text-properties bl el
+                    '(mouse-face highlight
+                                 help-echo "mouse-2, RET: Select frame")))
+              (goto-char bl)
+              (when (looking-at "^#\\([0-9]+\\)")
+                (when (string-equal (match-string 1) gdb-frame-number)
+                  (if (gud-tool-bar-item-visible-no-fringe)
+                      (progn
+                        (put-text-property bl (+ bl 4)
+                                           'face '(:inverse-video t))
+                        (setq move-to bl))
+                    (or gdb-stack-position
+                        (setq gdb-stack-position (make-marker)))
+                    (set-marker gdb-stack-position (point))
+                    (setq move-to gdb-stack-position)))
+                (when (re-search-forward "\\([^ ]+\\) (" el t)
+                  (put-text-property (match-beginning 1) (match-end 1)
+                                     'face font-lock-function-name-face)
+                  (setq bl (match-end 0))
+                  (while (re-search-forward "<\\([^>]+\\)>" el t)
+                    (put-text-property (match-beginning 1) (match-end 1)
+                                       'face font-lock-function-name-face))
+                  (goto-char bl)
+                  (while (re-search-forward "\\(\\(\\sw\\|[_.]\\)+\\)=" el t)
+                    (put-text-property (match-beginning 1) (match-end 1)
+                                       'face font-lock-variable-name-face))))
+              (forward-line 1))
+            (forward-line -1)
+            (when (looking-at "(More stack frames follow...)")
+              (add-text-properties
+               (match-beginning 0) (match-end 0)
+               '(mouse-face highlight
+                 gdb-max-frames t
+                 help-echo
+                   "mouse-2, RET: customize gdb-max-frames to see more frames"
+                 )))))
+        (when gdb-look-up-stack
+          (goto-char (point-min))
+          (when (re-search-forward "\\(\\S-+?\\):\\([0-9]+\\)" nil t)
+            (let ((start (line-beginning-position))
+                  (file (match-string 1))
+                  (line (match-string 2)))
+              (re-search-backward "^#*\\([0-9]+\\)" start t)
+              (gdb-enqueue-input
+               (list (concat gdb-server-prefix "frame "
+                             (match-string 1) "\n") 'gdb-set-hollow))
+              (gdb-enqueue-input
+               (list (concat gdb-server-prefix "frame 0\n") 'ignore))))))
+      (when move-to
+        (let ((window (get-buffer-window (current-buffer) 0)))
+          (when window
+            (with-selected-window window
+              (goto-char move-to)
+              (unless (pos-visible-in-window-p)
+                (recenter '(center)))))))))
+  (if (eq gdb-look-up-stack 'delete)
+      (kill-buffer (gdb-get-buffer 'gdb-stack-buffer)))
+  (setq gdb-look-up-stack nil))
+
+(defun gdb-set-hollow ()
+  (if gud-last-last-frame
+      (with-current-buffer (gud-find-file (car gud-last-last-frame))
+        (setq fringe-indicator-alist
+              '((overlay-arrow . hollow-right-triangle))))))
+
+(defun gdb-stack-buffer-name ()
+  (with-current-buffer gud-comint-buffer
+    (concat "*stack frames of " (gdb-get-target-string) "*")))
+
+(defun gdb-display-stack-buffer ()
+  "Display backtrace of current stack."
+  (interactive)
+  (gdb-display-buffer
+   (gdb-get-buffer-create 'gdb-stack-buffer) t))
+
+(defun gdb-frame-stack-buffer ()
+  "Display backtrace of current stack in a new frame."
+  (interactive)
+  (let ((special-display-regexps (append special-display-regexps '(".*")))
+        (special-display-frame-alist gdb-frame-parameters))
+    (display-buffer (gdb-get-buffer-create 'gdb-stack-buffer))))
+
+(defvar gdb-frames-mode-map
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "q" 'kill-this-buffer)
+    (define-key map "\r" 'gdb-frames-select)
+    (define-key map "F" 'gdb-frames-force-update)
+    (define-key map [mouse-2] 'gdb-frames-select)
+    (define-key map [follow-link] 'mouse-face)
+    map))
+
+(declare-function gdbmi-invalidate-frames "ext:gdb-mi" nil t)
+
+(defun gdb-frames-force-update ()
+  "Force update of call stack.
+Use when the displayed call stack gets out of sync with the
+actual one, e.g after using the Gdb command \"return\" or setting
+$pc directly from the GUD buffer.  This command isn't normally needed."
+  (interactive)
+  (setq gdb-stack-update t)
+  (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+      (gdb-invalidate-frames)
+    (gdbmi-invalidate-frames)))
+
+(defun gdb-frames-mode ()
+  "Major mode for gdb call stack.
+
+\\{gdb-frames-mode-map}"
+  (kill-all-local-variables)
+  (setq major-mode 'gdb-frames-mode)
+  (setq mode-name "Frames")
+  (setq gdb-stack-position nil)
+  (add-to-list 'overlay-arrow-variable-list 'gdb-stack-position)
+  (setq truncate-lines t)  ;; Make it easier to see overlay arrow.
+  (setq buffer-read-only t)
+  (buffer-disable-undo)
+  (gdb-thread-identification)
+  (use-local-map gdb-frames-mode-map)
+  (run-mode-hooks 'gdb-frames-mode-hook)
+  (setq gdb-stack-update t)
+  (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+      'gdb-invalidate-frames
+    'gdbmi-invalidate-frames))
+
+(defun gdb-get-frame-number ()
+  (save-excursion
+    (end-of-line)
+    (let* ((start (line-beginning-position))
+           (pos (re-search-backward "^#*\\([0-9]+\\)" start t))
+           (n (or (and pos (match-string 1)) "0")))
+      n)))
+
+(defun gdb-frames-select (&optional event)
+  "Select the frame and display the relevant source."
+  (interactive (list last-input-event))
+  (if event (posn-set-point (event-end event)))
+  (if (get-text-property (point) 'gdb-max-frames)
+      (progn
+        (message-box "After setting gdb-max-frames, you need to enter\n\
+another GDB command e.g pwd, to see new frames")
+      (customize-variable-other-window 'gdb-max-frames))
+    (gdb-enqueue-input
+     (list (concat gdb-server-prefix "frame "
+                   (gdb-get-frame-number) "\n") 'ignore))))
+
+
+;; Threads buffer.  This displays a selectable thread list.
+;;
+(gdb-set-buffer-rules 'gdb-threads-buffer
+                      'gdb-threads-buffer-name
+                      'gdb-threads-mode)
+
+(def-gdb-auto-updated-buffer gdb-threads-buffer
+  gdb-invalidate-threads
+  (concat gdb-server-prefix "info threads\n")
+  gdb-info-threads-handler
+  gdb-info-threads-custom)
+
+(defun gdb-info-threads-custom ()
+  (with-current-buffer (gdb-get-buffer 'gdb-threads-buffer)
+    (let ((buffer-read-only nil))
+      (save-excursion
+        (goto-char (point-min))
+        (if (re-search-forward "\\* \\([0-9]+\\)" nil t)
+            (setq gdb-thread-indicator
+                  (propertize (concat " [" (match-string 1) "]")
+                              ; FIXME: this help-echo doesn't work
+                              'help-echo "thread id")))
+        (goto-char (point-min))
+        (while (< (point) (point-max))
+          (unless (looking-at "No ")
+            (add-text-properties (line-beginning-position) (line-end-position)
+                                 '(mouse-face highlight
+                                 help-echo "mouse-2, RET: select thread")))
+          (forward-line 1))))))
+
+(defun gdb-threads-buffer-name ()
+  (with-current-buffer gud-comint-buffer
+    (concat "*threads of " (gdb-get-target-string) "*")))
+
+(defun gdb-display-threads-buffer ()
+  "Display IDs of currently known threads."
+  (interactive)
+  (gdb-display-buffer
+   (gdb-get-buffer-create 'gdb-threads-buffer) t))
+
+(defun gdb-frame-threads-buffer ()
+  "Display IDs of currently known threads in a new frame."
+  (interactive)
+  (let ((special-display-regexps (append special-display-regexps '(".*")))
+        (special-display-frame-alist gdb-frame-parameters))
+    (display-buffer (gdb-get-buffer-create 'gdb-threads-buffer))))
+
+(defvar gdb-threads-mode-map
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "q" 'kill-this-buffer)
+    (define-key map "\r" 'gdb-threads-select)
+    (define-key map [mouse-2] 'gdb-threads-select)
+    (define-key map [follow-link] 'mouse-face)
+    map))
+
+(defvar gdb-threads-font-lock-keywords
+  '((") +\\([^ ]+\\) ("  (1 font-lock-function-name-face))
+    ("in \\([^ ]+\\) ("  (1 font-lock-function-name-face))
+    ("\\(\\(\\sw\\|[_.]\\)+\\)="  (1 font-lock-variable-name-face)))
+  "Font lock keywords used in `gdb-threads-mode'.")
+
+(defun gdb-threads-mode ()
+  "Major mode for gdb threads.
+
+\\{gdb-threads-mode-map}"
+  (kill-all-local-variables)
+  (setq major-mode 'gdb-threads-mode)
+  (setq mode-name "Threads")
+  (setq buffer-read-only t)
+  (buffer-disable-undo)
+  (setq header-line-format gdb-breakpoints-header)
+  (use-local-map gdb-threads-mode-map)
+  (set (make-local-variable 'font-lock-defaults)
+       '(gdb-threads-font-lock-keywords))
+  (run-mode-hooks 'gdb-threads-mode-hook)
+  ;; Force "info threads" onto queue.
+  (lambda () (let ((gud-running nil)) (gdb-invalidate-threads))))
+
+(defun gdb-get-thread-number ()
+  (save-excursion
+    (re-search-backward "^\\s-*\\([0-9]*\\)" nil t)
+    (match-string-no-properties 1)))
+
+(defun gdb-threads-select (&optional event)
+  "Select the thread and display the relevant source."
+  (interactive (list last-input-event))
+  (if event (posn-set-point (event-end event)))
+  (setq gdb-stack-update t)
+  (gdb-enqueue-input
+   (list (concat gdb-server-prefix "thread "
+                 (gdb-get-thread-number) "\n") 'ignore))
+  (gud-display-frame))
+
+(defun gdb-thread-identification ()
+  (setq mode-line-buffer-identification
+        (list (car mode-line-buffer-identification)
+              '(gdb-thread-indicator gdb-thread-indicator))))
+
+;; Registers buffer.
+;;
+(defcustom gdb-all-registers nil
+  "Non-nil means include floating-point registers."
+  :type 'boolean
+  :group 'gdb
+  :version "22.1")
+
+(gdb-set-buffer-rules 'gdb-registers-buffer
+                      'gdb-registers-buffer-name
+                      'gdb-registers-mode)
+
+(def-gdb-auto-updated-buffer gdb-registers-buffer
+  gdb-invalidate-registers
+  (concat
+   gdb-server-prefix "info " (if gdb-all-registers "all-") "registers\n")
+  gdb-info-registers-handler
+  gdb-info-registers-custom)
+
+(defun gdb-info-registers-custom ()
+  (with-current-buffer (gdb-get-buffer 'gdb-registers-buffer)
+    (save-excursion
+      (let ((buffer-read-only nil)
+            start end)
+        (goto-char (point-min))
+        (while (< (point) (point-max))
+          (setq start (line-beginning-position))
+          (setq end (line-end-position))
+          (when (looking-at "^[^ ]+")
+            (unless (string-equal (match-string 0) "The")
+              (put-text-property start (match-end 0)
+                                 'face font-lock-variable-name-face)
+              (add-text-properties start end
+                                   '(help-echo "mouse-2: edit value"
+                                     mouse-face highlight))))
+          (forward-line 1))))))
+
+(defun gdb-edit-register-value (&optional event)
+  (interactive (list last-input-event))
+  (save-excursion
+    (if event (posn-set-point (event-end event)))
+    (beginning-of-line)
+    (let* ((register (current-word))
+          (value (read-string (format "New value (%s): " register))))
+      (gdb-enqueue-input
+       (list (concat gdb-server-prefix "set $" register "=" value "\n")
+             'ignore)))))
+
+(defvar gdb-registers-mode-map
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "\r" 'gdb-edit-register-value)
+    (define-key map [mouse-2] 'gdb-edit-register-value)
+    (define-key map " " 'gdb-all-registers)
+    (define-key map "q" 'kill-this-buffer)
+     map))
+
+(defvar gdb-locals-header
+  (list
+   (gdb-propertize-header "Locals" gdb-locals-buffer
+                          nil nil mode-line)
+   " "
+   (gdb-propertize-header "Registers" gdb-registers-buffer
+                          "mouse-1: select" mode-line-highlight mode-line-inactive)))
+
+
+(defun gdb-registers-mode ()
+  "Major mode for gdb registers.
+
+\\{gdb-registers-mode-map}"
+  (kill-all-local-variables)
+  (setq major-mode 'gdb-registers-mode)
+  (setq mode-name "Registers")
+  (setq header-line-format gdb-locals-header)
+  (setq buffer-read-only t)
+  (buffer-disable-undo)
+  (gdb-thread-identification)
+  (use-local-map gdb-registers-mode-map)
+  (run-mode-hooks 'gdb-registers-mode-hook)
+  (if (string-equal gdb-version "pre-6.4")
+      (progn
+        (if gdb-all-registers (setq mode-name "Registers:All"))
+        'gdb-invalidate-registers)
+    'gdb-invalidate-registers-1))
+
+(defun gdb-registers-buffer-name ()
+  (with-current-buffer gud-comint-buffer
+    (concat "*registers of " (gdb-get-target-string) "*")))
+
+(defun gdb-display-registers-buffer ()
+  "Display integer register contents."
+  (interactive)
+  (gdb-display-buffer
+   (gdb-get-buffer-create 'gdb-registers-buffer) t))
+
+(defun gdb-frame-registers-buffer ()
+  "Display integer register contents in a new frame."
+  (interactive)
+  (let ((special-display-regexps (append special-display-regexps '(".*")))
+        (special-display-frame-alist gdb-frame-parameters))
+    (display-buffer (gdb-get-buffer-create 'gdb-registers-buffer))))
+
+(defun gdb-all-registers ()
+  "Toggle the display of floating-point registers (pre GDB 6.4 only)."
+  (interactive)
+  (when (string-equal gdb-version "pre-6.4")
+    (if gdb-all-registers
+        (progn
+          (setq gdb-all-registers nil)
+          (with-current-buffer (gdb-get-buffer-create 'gdb-registers-buffer)
+            (setq mode-name "Registers")))
+      (setq gdb-all-registers t)
+      (with-current-buffer (gdb-get-buffer-create 'gdb-registers-buffer)
+        (setq mode-name "Registers:All")))
+    (message (format "Display of floating-point registers %sabled"
+                     (if gdb-all-registers "en" "dis")))
+    (gdb-invalidate-registers)))
+
+
+;; Memory buffer.
+;;
+(defcustom gdb-memory-repeat-count 32
+  "Number of data items in memory window."
+  :type 'integer
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-memory-format "x"
+  "Display format of data items in memory window."
+  :type '(choice (const :tag "Hexadecimal" "x")
+                 (const :tag "Signed decimal" "d")
+                 (const :tag "Unsigned decimal" "u")
+                 (const :tag "Octal" "o")
+                 (const :tag "Binary" "t"))
+  :group 'gdb
+  :version "22.1")
+
+(defcustom gdb-memory-unit "w"
+  "Unit size of data items in memory window."
+  :type '(choice (const :tag "Byte" "b")
+                 (const :tag "Halfword" "h")
+                 (const :tag "Word" "w")
+                 (const :tag "Giant word" "g"))
+  :group 'gdb
+  :version "22.1")
+
+(gdb-set-buffer-rules 'gdb-memory-buffer
+                      'gdb-memory-buffer-name
+                      'gdb-memory-mode)
+
+(def-gdb-auto-updated-buffer gdb-memory-buffer
+  gdb-invalidate-memory
+  (concat gdb-server-prefix "x/" (number-to-string gdb-memory-repeat-count)
+          gdb-memory-format gdb-memory-unit " " gdb-memory-address "\n")
+  gdb-read-memory-handler
+  gdb-read-memory-custom)
+
+(defun gdb-read-memory-custom ()
+  (save-excursion
+    (goto-char (point-min))
+    (if (looking-at "0x[[:xdigit:]]+")
+        (setq gdb-memory-address (match-string 0)))))
+
+(defvar gdb-memory-mode-map
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "S" 'gdb-memory-set-address)
+    (define-key map "N" 'gdb-memory-set-repeat-count)
+    (define-key map "q" 'kill-this-buffer)
+     map))
+
+(defun gdb-memory-set-address (&optional event)
+  "Set the start memory address."
+  (interactive)
+  (let ((arg (read-from-minibuffer "Start address: ")))
+    (setq gdb-memory-address arg))
+    (gdb-invalidate-memory))
+
+(defun gdb-memory-set-repeat-count (&optional event)
+  "Set the number of data items in memory window."
+  (interactive)
+  (let* ((arg (read-from-minibuffer "Repeat count: "))
+         (count (string-to-number arg)))
+    (if (<= count 0)
+        (error "Positive numbers only")
+      (customize-set-variable 'gdb-memory-repeat-count count)
+      (gdb-invalidate-memory))))
+
+(defun gdb-memory-format-binary ()
+  "Set the display format to binary."
+  (interactive)
+  (customize-set-variable 'gdb-memory-format "t")
+  (gdb-invalidate-memory))
+
+(defun gdb-memory-format-octal ()
+  "Set the display format to octal."
+  (interactive)
+  (customize-set-variable 'gdb-memory-format "o")
+  (gdb-invalidate-memory))
+
+(defun gdb-memory-format-unsigned ()
+  "Set the display format to unsigned decimal."
+  (interactive)
+  (customize-set-variable 'gdb-memory-format "u")
+  (gdb-invalidate-memory))
+
+(defun gdb-memory-format-signed ()
+  "Set the display format to decimal."
+  (interactive)
+  (customize-set-variable 'gdb-memory-format "d")
+  (gdb-invalidate-memory))
+
+(defun gdb-memory-format-hexadecimal ()
+  "Set the display format to hexadecimal."
+  (interactive)
+  (customize-set-variable 'gdb-memory-format "x")
+  (gdb-invalidate-memory))
+
+(defvar gdb-memory-format-map
+  (let ((map (make-sparse-keymap)))
+    (define-key map [header-line down-mouse-3] 'gdb-memory-format-menu-1)
+    map)
+  "Keymap to select format in the header line.")
+
+(defvar gdb-memory-format-menu (make-sparse-keymap "Format")
+  "Menu of display formats in the header line.")
+
+(define-key gdb-memory-format-menu [binary]
+  '(menu-item "Binary" gdb-memory-format-binary
+              :button (:radio . (equal gdb-memory-format "t"))))
+(define-key gdb-memory-format-menu [octal]
+  '(menu-item "Octal" gdb-memory-format-octal
+              :button (:radio . (equal gdb-memory-format "o"))))
+(define-key gdb-memory-format-menu [unsigned]
+  '(menu-item "Unsigned Decimal" gdb-memory-format-unsigned
+              :button (:radio . (equal gdb-memory-format "u"))))
+(define-key gdb-memory-format-menu [signed]
+  '(menu-item "Signed Decimal" gdb-memory-format-signed
+              :button (:radio . (equal gdb-memory-format "d"))))
+(define-key gdb-memory-format-menu [hexadecimal]
+  '(menu-item "Hexadecimal" gdb-memory-format-hexadecimal
+              :button (:radio . (equal gdb-memory-format "x"))))
+
+(defun gdb-memory-format-menu (event)
+  (interactive "@e")
+  (x-popup-menu event gdb-memory-format-menu))
+
+(defun gdb-memory-format-menu-1 (event)
+  (interactive "e")
+  (save-selected-window
+    (select-window (posn-window (event-start event)))
+    (let* ((selection (gdb-memory-format-menu event))
+           (binding (and selection (lookup-key gdb-memory-format-menu
+                                               (vector (car selection))))))
+      (if binding (call-interactively binding)))))
+
+(defun gdb-memory-unit-giant ()
+  "Set the unit size to giant words (eight bytes)."
+  (interactive)
+  (customize-set-variable 'gdb-memory-unit "g")
+  (gdb-invalidate-memory))
+
+(defun gdb-memory-unit-word ()
+  "Set the unit size to words (four bytes)."
+  (interactive)
+  (customize-set-variable 'gdb-memory-unit "w")
+  (gdb-invalidate-memory))
+
+(defun gdb-memory-unit-halfword ()
+  "Set the unit size to halfwords (two bytes)."
+  (interactive)
+  (customize-set-variable 'gdb-memory-unit "h")
+  (gdb-invalidate-memory))
+
+(defun gdb-memory-unit-byte ()
+  "Set the unit size to bytes."
+  (interactive)
+  (customize-set-variable 'gdb-memory-unit "b")
+  (gdb-invalidate-memory))
+
+(defvar gdb-memory-unit-map
+  (let ((map (make-sparse-keymap)))
+    (define-key map [header-line down-mouse-3] 'gdb-memory-unit-menu-1)
+    map)
+  "Keymap to select units in the header line.")
+
+(defvar gdb-memory-unit-menu (make-sparse-keymap "Unit")
+  "Menu of units in the header line.")
+
+(define-key gdb-memory-unit-menu [giantwords]
+  '(menu-item "Giant words" gdb-memory-unit-giant
+              :button (:radio . (equal gdb-memory-unit "g"))))
+(define-key gdb-memory-unit-menu [words]
+  '(menu-item "Words" gdb-memory-unit-word
+              :button (:radio . (equal gdb-memory-unit "w"))))
+(define-key gdb-memory-unit-menu [halfwords]
+  '(menu-item "Halfwords" gdb-memory-unit-halfword
+              :button (:radio . (equal gdb-memory-unit "h"))))
+(define-key gdb-memory-unit-menu [bytes]
+  '(menu-item "Bytes" gdb-memory-unit-byte
+              :button (:radio . (equal gdb-memory-unit "b"))))
+
+(defun gdb-memory-unit-menu (event)
+  (interactive "@e")
+  (x-popup-menu event gdb-memory-unit-menu))
+
+(defun gdb-memory-unit-menu-1 (event)
+  (interactive "e")
+  (save-selected-window
+    (select-window (posn-window (event-start event)))
+    (let* ((selection (gdb-memory-unit-menu event))
+           (binding (and selection (lookup-key gdb-memory-unit-menu
+                                               (vector (car selection))))))
+      (if binding (call-interactively binding)))))
+
+(defvar gdb-memory-font-lock-keywords
+  '(;; <__function.name+n>
+    ("<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>" (1 font-lock-function-name-face))
+    )
+  "Font lock keywords used in `gdb-memory-mode'.")
+
+(defun gdb-memory-mode ()
+  "Major mode for examining memory.
+
+\\{gdb-memory-mode-map}"
+  (kill-all-local-variables)
+  (setq major-mode 'gdb-memory-mode)
+  (setq mode-name "Memory")
+  (setq buffer-read-only t)
+  (buffer-disable-undo)
+  (use-local-map gdb-memory-mode-map)
+  (setq header-line-format
+        '(:eval
+          (concat
+           "Start address["
+           (propertize
+            "-"
+            'face font-lock-warning-face
+            'help-echo "mouse-1: decrement address"
+            'mouse-face 'mode-line-highlight
+            'local-map
+            (gdb-make-header-line-mouse-map
+             'mouse-1
+             (lambda () (interactive)
+               (let ((gdb-memory-address
+                      ;; Let GDB do the arithmetic.
+                      (concat
+                       gdb-memory-address " - "
+                       (number-to-string
+                        (* gdb-memory-repeat-count
+                           (cond ((string= gdb-memory-unit "b") 1)
+                                 ((string= gdb-memory-unit "h") 2)
+                                 ((string= gdb-memory-unit "w") 4)
+                                 ((string= gdb-memory-unit "g") 8)))))))
+                 (gdb-invalidate-memory)))))
+           "|"
+           (propertize "+"
+                       'face font-lock-warning-face
+                       'help-echo "mouse-1: increment address"
+                       'mouse-face 'mode-line-highlight
+                       'local-map (gdb-make-header-line-mouse-map
+                                   'mouse-1
+                                   (lambda () (interactive)
+                                     (let ((gdb-memory-address nil))
+                                       (gdb-invalidate-memory)))))
+           "]: "
+           (propertize gdb-memory-address
+                       'face font-lock-warning-face
+                       'help-echo "mouse-1: set start address"
+                       'mouse-face 'mode-line-highlight
+                       'local-map (gdb-make-header-line-mouse-map
+                                   'mouse-1
+                                   #'gdb-memory-set-address))
+           "  Repeat Count: "
+           (propertize (number-to-string gdb-memory-repeat-count)
+                       'face font-lock-warning-face
+                       'help-echo "mouse-1: set repeat count"
+                       'mouse-face 'mode-line-highlight
+                       'local-map (gdb-make-header-line-mouse-map
+                                   'mouse-1
+                                   #'gdb-memory-set-repeat-count))
+           "  Display Format: "
+           (propertize gdb-memory-format
+                       'face font-lock-warning-face
+                       'help-echo "mouse-3: select display format"
+                       'mouse-face 'mode-line-highlight
+                       'local-map gdb-memory-format-map)
+           "  Unit Size: "
+           (propertize gdb-memory-unit
+                       'face font-lock-warning-face
+                       'help-echo "mouse-3: select unit size"
+                       'mouse-face 'mode-line-highlight
+                       'local-map gdb-memory-unit-map))))
+  (set (make-local-variable 'font-lock-defaults)
+       '(gdb-memory-font-lock-keywords))
+  (run-mode-hooks 'gdb-memory-mode-hook)
+  'gdb-invalidate-memory)
+
+(defun gdb-memory-buffer-name ()
+  (with-current-buffer gud-comint-buffer
+    (concat "*memory of " (gdb-get-target-string) "*")))
+
+(defun gdb-display-memory-buffer ()
+  "Display memory contents."
+  (interactive)
+  (gdb-display-buffer
+   (gdb-get-buffer-create 'gdb-memory-buffer) t))
+
+(defun gdb-frame-memory-buffer ()
+  "Display memory contents in a new frame."
+  (interactive)
+  (let* ((special-display-regexps (append special-display-regexps '(".*")))
+         (special-display-frame-alist
+          (cons '(left-fringe . 0)
+                (cons '(right-fringe . 0)
+                      (cons '(width . 83) gdb-frame-parameters)))))
+    (display-buffer (gdb-get-buffer-create 'gdb-memory-buffer))))
+
+
+;; Locals buffer.
+;;
+(gdb-set-buffer-rules 'gdb-locals-buffer
+                      'gdb-locals-buffer-name
+                      'gdb-locals-mode)
+
+(def-gdb-auto-update-trigger gdb-invalidate-locals
+  (gdb-get-buffer 'gdb-locals-buffer)
+  "server info locals\n"
+  gdb-info-locals-handler)
+
+(defvar gdb-locals-watch-map
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "\r" (lambda () (interactive)
+                           (beginning-of-line)
+                           (gud-watch)))
+    (define-key map [mouse-2] (lambda (event) (interactive "e")
+                                (mouse-set-point event)
+                                (beginning-of-line)
+                                (gud-watch)))
+    map)
+  "Keymap to create watch expression of a complex data type local variable.")
+
+(defconst gdb-struct-string
+  (concat (propertize "[struct/union]"
+                      'mouse-face 'highlight
+                      'help-echo "mouse-2: create watch expression"
+                      'local-map gdb-locals-watch-map) "\n"))
+
+(defconst gdb-array-string
+  (concat " " (propertize "[array]"
+                          'mouse-face 'highlight
+                          'help-echo "mouse-2: create watch expression"
+                          'local-map gdb-locals-watch-map) "\n"))
+
+;; Abbreviate for arrays and structures.
+;; These can be expanded using gud-display.
+(defun gdb-info-locals-handler ()
+  (setq gdb-pending-triggers (delq 'gdb-invalidate-locals
+                                  gdb-pending-triggers))
+  (let ((buf (gdb-get-buffer 'gdb-partial-output-buffer)))
+    (with-current-buffer buf
+      (goto-char (point-min))
+      ;; Need this in case "set print pretty" is on.
+      (while (re-search-forward "^[ }].*\n" nil t)
+        (replace-match "" nil nil))
+      (goto-char (point-min))
+      (while (re-search-forward "{\\(.*=.*\n\\|\n\\)" nil t)
+        (replace-match gdb-struct-string nil nil))
+      (goto-char (point-min))
+      (while (re-search-forward "\\s-*{[^.].*\n" nil t)
+        (replace-match gdb-array-string nil nil))))
+  (let ((buf (gdb-get-buffer 'gdb-locals-buffer)))
+    (and buf
+         (with-current-buffer buf
+              (let* ((window (get-buffer-window buf 0))
+                     (start (window-start window))
+                     (p (window-point window))
+                     (buffer-read-only nil))
+                 (erase-buffer)
+                 (insert-buffer-substring (gdb-get-buffer-create
+                                           'gdb-partial-output-buffer))
+                (set-window-start window start)
+                (set-window-point window p)))))
+  (run-hooks 'gdb-info-locals-hook))
+
+(defvar gdb-locals-mode-map
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "q" 'kill-this-buffer)
+     map))
+
+(defun gdb-locals-mode ()
+  "Major mode for gdb locals.
+
+\\{gdb-locals-mode-map}"
+  (kill-all-local-variables)
+  (setq major-mode 'gdb-locals-mode)
+  (setq mode-name (concat "Locals:" gdb-selected-frame))
+  (use-local-map gdb-locals-mode-map)
+  (setq buffer-read-only t)
+  (buffer-disable-undo)
+  (setq header-line-format gdb-locals-header)
+  (gdb-thread-identification)
+  (set (make-local-variable 'font-lock-defaults)
+       '(gdb-locals-font-lock-keywords))
+  (run-mode-hooks 'gdb-locals-mode-hook)
+  (if (and (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+           (string-equal gdb-version "pre-6.4"))
+      'gdb-invalidate-locals
+    'gdb-invalidate-locals-1))
+
+(defun gdb-locals-buffer-name ()
+  (with-current-buffer gud-comint-buffer
+    (concat "*locals of " (gdb-get-target-string) "*")))
+
+(defun gdb-display-locals-buffer ()
+  "Display local variables of current stack and their values."
+  (interactive)
+  (gdb-display-buffer
+   (gdb-get-buffer-create 'gdb-locals-buffer) t))
+
+(defun gdb-frame-locals-buffer ()
+  "Display local variables of current stack and their values in a new frame."
+  (interactive)
+  (let ((special-display-regexps (append special-display-regexps '(".*")))
+        (special-display-frame-alist gdb-frame-parameters))
+    (display-buffer (gdb-get-buffer-create 'gdb-locals-buffer))))
+
+
+;;;; Window management
+(defun gdb-display-buffer (buf dedicated &optional frame)
+  (let ((answer (get-buffer-window buf (or frame 0))))
+    (if answer
+        (display-buffer buf nil (or frame 0)) ;Deiconify the frame if necessary.
+      (let ((window (get-lru-window)))
+        (if (memq (buffer-local-value 'gud-minor-mode (window-buffer window))
+                  '(gdba gdbmi))
+            (let* ((largest (get-largest-window))
+                   (cur-size (window-height largest)))
+              (setq answer (split-window largest))
+              (set-window-buffer answer buf)
+              (set-window-dedicated-p answer dedicated)
+              answer)
+          (set-window-buffer window buf)
+          window)))))
+
+
+;;; Shared keymap initialization:
+
+(let ((menu (make-sparse-keymap "GDB-Windows")))
+  (define-key gud-menu-map [displays]
+    `(menu-item "GDB-Windows" ,menu
+                :help "Open a GDB-UI buffer in a new window."
+                :visible (memq gud-minor-mode '(gdbmi gdba))))
+  (define-key menu [gdb] '("Gdb" . gdb-display-gdb-buffer))
+  (define-key menu [threads] '("Threads" . gdb-display-threads-buffer))
+  (define-key menu [inferior]
+    '(menu-item "Separate IO" gdb-display-separate-io-buffer
+                :enable gdb-use-separate-io-buffer))
+  (define-key menu [memory] '("Memory" . gdb-display-memory-buffer))
+  (define-key menu [registers] '("Registers" . gdb-display-registers-buffer))
+  (define-key menu [disassembly]
+    '("Disassembly" . gdb-display-assembler-buffer))
+  (define-key menu [breakpoints]
+    '("Breakpoints" . gdb-display-breakpoints-buffer))
+  (define-key menu [locals] '("Locals" . gdb-display-locals-buffer))
+  (define-key menu [frames] '("Stack" . gdb-display-stack-buffer)))
+
+(let ((menu (make-sparse-keymap "GDB-Frames")))
+  (define-key gud-menu-map [frames]
+    `(menu-item "GDB-Frames" ,menu
+                :help "Open a GDB-UI buffer in a new frame."
+                :visible (memq gud-minor-mode '(gdbmi gdba))))
+  (define-key menu [gdb] '("Gdb" . gdb-frame-gdb-buffer))
+  (define-key menu [threads] '("Threads" . gdb-frame-threads-buffer))
+  (define-key menu [memory] '("Memory" . gdb-frame-memory-buffer))
+  (define-key menu [inferior]
+    '(menu-item "Separate IO" gdb-frame-separate-io-buffer
+                :enable gdb-use-separate-io-buffer))
+  (define-key menu [registers] '("Registers" . gdb-frame-registers-buffer))
+  (define-key menu [disassembly] '("Disassembly" . gdb-frame-assembler-buffer))
+  (define-key menu [breakpoints]
+    '("Breakpoints" . gdb-frame-breakpoints-buffer))
+  (define-key menu [locals] '("Locals" . gdb-frame-locals-buffer))
+  (define-key menu [frames] '("Stack" . gdb-frame-stack-buffer)))
+
+(let ((menu (make-sparse-keymap "GDB-UI/MI")))
+  (define-key gud-menu-map [ui]
+    `(menu-item (if (eq gud-minor-mode 'gdba) "GDB-UI" "GDB-MI")
+                ,menu :visible (memq gud-minor-mode '(gdbmi gdba))))
+  (define-key menu [gdb-customize]
+  '(menu-item "Customize" (lambda () (interactive) (customize-group 'gdb))
+              :help "Customize Gdb Graphical Mode options."))
+  (define-key menu [gdb-find-source-frame]
+  '(menu-item "Look For Source Frame" gdb-find-source-frame
+              :visible (eq gud-minor-mode 'gdba)
+              :help "Toggle looking for source frame further up call stack."
+              :button (:toggle . gdb-find-source-frame)))
+  (define-key menu [gdb-use-separate-io]
+  '(menu-item "Separate IO" gdb-use-separate-io-buffer
+              :visible (eq gud-minor-mode 'gdba)
+              :help "Toggle separate IO for debugged program."
+              :button (:toggle . gdb-use-separate-io-buffer)))
+  (define-key menu [gdb-many-windows]
+  '(menu-item "Display Other Windows" gdb-many-windows
+              :help "Toggle display of locals, stack and breakpoint information"
+              :button (:toggle . gdb-many-windows)))
+  (define-key menu [gdb-restore-windows]
+  '(menu-item "Restore Window Layout" gdb-restore-windows
+              :help "Restore standard layout for debug session.")))
+
+(defun gdb-frame-gdb-buffer ()
+  "Display GUD buffer in a new frame."
+  (interactive)
+  (let ((special-display-regexps (append special-display-regexps '(".*")))
+        (special-display-frame-alist
+         (remove '(menu-bar-lines) (remove '(tool-bar-lines)
+                                           gdb-frame-parameters)))
+        (same-window-regexps nil))
+    (display-buffer gud-comint-buffer)))
+
+(defun gdb-display-gdb-buffer ()
+  "Display GUD buffer."
+  (interactive)
+  (let ((same-window-regexps nil))
+    (select-window (display-buffer gud-comint-buffer nil 0))))
+
+(defun gdb-set-window-buffer (name)
+  (set-window-buffer (selected-window) (get-buffer name))
+  (set-window-dedicated-p (selected-window) t))
+
+(defun gdb-setup-windows ()
+  "Layout the window pattern for `gdb-many-windows'."
+  (gdb-display-locals-buffer)
+  (gdb-display-stack-buffer)
+  (delete-other-windows)
+  (gdb-display-breakpoints-buffer)
+  (delete-other-windows)
+  ; Don't dedicate.
+  (pop-to-buffer gud-comint-buffer)
+  (split-window nil ( / ( * (window-height) 3) 4))
+  (split-window nil ( / (window-height) 3))
+  (split-window-horizontally)
+  (other-window 1)
+  (gdb-set-window-buffer (gdb-locals-buffer-name))
+  (other-window 1)
+  (switch-to-buffer
+       (if gud-last-last-frame
+           (gud-find-file (car gud-last-last-frame))
+         (if gdb-main-file
+             (gud-find-file gdb-main-file)
+           ;; Put buffer list in window if we
+           ;; can't find a source file.
+           (list-buffers-noselect))))
+  (setq gdb-source-window (selected-window))
+  (when gdb-use-separate-io-buffer
+    (split-window-horizontally)
+    (other-window 1)
+    (gdb-set-window-buffer
+     (gdb-get-buffer-create 'gdb-inferior-io)))
+  (other-window 1)
+  (gdb-set-window-buffer (gdb-stack-buffer-name))
+  (split-window-horizontally)
+  (other-window 1)
+  (gdb-set-window-buffer (gdb-breakpoints-buffer-name))
+  (other-window 1))
+
+(defun gdb-restore-windows ()
+  "Restore the basic arrangement of windows used by gdba.
+This arrangement depends on the value of `gdb-many-windows'."
+  (interactive)
+  (pop-to-buffer gud-comint-buffer)     ;Select the right window and frame.
+    (delete-other-windows)
+  (if gdb-many-windows
+      (gdb-setup-windows)
+    (when (or gud-last-last-frame gdb-show-main)
+      (split-window)
+      (other-window 1)
+      (switch-to-buffer
+       (if gud-last-last-frame
+           (gud-find-file (car gud-last-last-frame))
+         (gud-find-file gdb-main-file)))
+      (setq gdb-source-window (selected-window))
+      (other-window 1))))
+
+(defun gdb-reset ()
+  "Exit a debugging session cleanly.
+Kills the gdb buffers, and resets variables and the source buffers."
+  (dolist (buffer (buffer-list))
+    (unless (eq buffer gud-comint-buffer)
+      (with-current-buffer buffer
+        (if (memq gud-minor-mode '(gdbmi gdba))
+            (if (string-match "\\` ?\\*.+\\*\\'" (buffer-name))
+                (kill-buffer nil)
+              (gdb-remove-breakpoint-icons (point-min) (point-max) t)
+              (setq gud-minor-mode nil)
+              (kill-local-variable 'tool-bar-map)
+              (kill-local-variable 'gdb-define-alist))))))
+  (setq gdb-overlay-arrow-position nil)
+  (setq overlay-arrow-variable-list
+        (delq 'gdb-overlay-arrow-position overlay-arrow-variable-list))
+  (setq fringe-indicator-alist '((overlay-arrow . right-triangle)))
+  (setq gdb-stack-position nil)
+  (setq overlay-arrow-variable-list
+        (delq 'gdb-stack-position overlay-arrow-variable-list))
+  (if (boundp 'speedbar-frame) (speedbar-timer-fn))
+  (setq gud-running nil)
+  (setq gdb-active-process nil)
+  (setq gdb-var-list nil)
+  (remove-hook 'after-save-hook 'gdb-create-define-alist t))
+
+(defun gdb-source-info ()
+  "Find the source file where the program starts and display it with related
+buffers."
+  (goto-char (point-min))
+  (if (and (search-forward "Located in " nil t)
+           (looking-at "\\S-+"))
+      (setq gdb-main-file (match-string 0)))
+  (goto-char (point-min))
+  (if (search-forward "Includes preprocessor macro info." nil t)
+      (setq gdb-macro-info t))
+  (if gdb-many-windows
+      (gdb-setup-windows)
+   (gdb-get-buffer-create 'gdb-breakpoints-buffer)
+   (if (and gdb-show-main gdb-main-file)
+       (let ((pop-up-windows t))
+         (display-buffer (gud-find-file gdb-main-file)))))
+ (setq gdb-ready t))
+
+(defun gdb-get-location (bptno line flag)
+  "Find the directory containing the relevant source file.
+Put in buffer and place breakpoint icon."
+  (goto-char (point-min))
+  (catch 'file-not-found
+    (if (search-forward "Located in " nil t)
+        (when (looking-at "\\S-+")
+          (delete (cons bptno "File not found") gdb-location-alist)
+          (push (cons bptno (match-string 0)) gdb-location-alist))
+      (gdb-resync)
+      (unless (assoc bptno gdb-location-alist)
+        (push (cons bptno "File not found") gdb-location-alist)
+        (message-box "Cannot find source file for breakpoint location.\n\
+Add directory to search path for source files using the GDB command, dir."))
+      (throw 'file-not-found nil))
+    (with-current-buffer
+        (find-file-noselect (match-string 0))
+      (gdb-init-buffer)
+      ;; only want one breakpoint icon at each location
+      (save-excursion
+        (goto-char (point-min))
+        (forward-line (1- (string-to-number line)))
+        (gdb-put-breakpoint-icon (eq flag ?y) bptno)))))
+
+(add-hook 'find-file-hook 'gdb-find-file-hook)
+
+(defun gdb-find-file-hook ()
+  "Set up buffer for debugging if file is part of the source code
+of the current session."
+  (if (and (buffer-name gud-comint-buffer)
+           ;; in case gud or gdb-ui is just loaded
+           gud-comint-buffer
+           (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+               '(gdba gdbmi)))
+      ;;Pre GDB 6.3 "info sources" doesn't give absolute file name.
+      (if (member (if (string-equal gdb-version "pre-6.4")
+                      (file-name-nondirectory buffer-file-name)
+                    buffer-file-name)
+                  gdb-source-file-list)
+          (with-current-buffer (find-buffer-visiting buffer-file-name)
+            (gdb-init-buffer)))))
+
+;;from put-image
+(defun gdb-put-string (putstring pos &optional dprop &rest sprops)
+  "Put string PUTSTRING in front of POS in the current buffer.
+PUTSTRING is displayed by putting an overlay into the current buffer with a
+`before-string' string that has a `display' property whose value is
+PUTSTRING."
+  (let ((string (make-string 1 ?x))
+        (buffer (current-buffer)))
+    (setq putstring (copy-sequence putstring))
+    (let ((overlay (make-overlay pos pos buffer))
+          (prop (or dprop
+                    (list (list 'margin 'left-margin) putstring))))
+      (put-text-property 0 1 'display prop string)
+      (if sprops
+          (add-text-properties 0 1 sprops string))
+      (overlay-put overlay 'put-break t)
+      (overlay-put overlay 'before-string string))))
+
+;;from remove-images
+(defun gdb-remove-strings (start end &optional buffer)
+  "Remove strings between START and END in BUFFER.
+Remove only strings that were put in BUFFER with calls to `gdb-put-string'.
+BUFFER nil or omitted means use the current buffer."
+  (unless buffer
+    (setq buffer (current-buffer)))
+  (dolist (overlay (overlays-in start end))
+    (when (overlay-get overlay 'put-break)
+          (delete-overlay overlay))))
+
+(defun gdb-put-breakpoint-icon (enabled bptno)
+  (if (string-match "[0-9+]+\\." bptno)
+      (setq enabled gdb-parent-bptno-enabled))
+  (let ((start (- (line-beginning-position) 1))
+        (end (+ (line-end-position) 1))
+        (putstring (if enabled "B" "b"))
+        (source-window (get-buffer-window (current-buffer) 0)))
+    (add-text-properties
+     0 1 '(help-echo "mouse-1: clear bkpt, mouse-3: enable/disable bkpt")
+     putstring)
+    (if enabled
+        (add-text-properties
+         0 1 `(gdb-bptno ,bptno gdb-enabled t) putstring)
+      (add-text-properties
+       0 1 `(gdb-bptno ,bptno gdb-enabled nil) putstring))
+    (gdb-remove-breakpoint-icons start end)
+    (if (display-images-p)
+        (if (>= (or left-fringe-width
+                    (if source-window (car (window-fringes source-window)))
+                    gdb-buffer-fringe-width) 8)
+            (gdb-put-string
+             nil (1+ start)
+             `(left-fringe breakpoint
+                           ,(if enabled
+                                'breakpoint-enabled
+                              'breakpoint-disabled))
+             'gdb-bptno bptno
+             'gdb-enabled enabled)
+          (when (< left-margin-width 2)
+            (save-current-buffer
+              (setq left-margin-width 2)
+              (if source-window
+                  (set-window-margins
+                   source-window
+                   left-margin-width right-margin-width))))
+          (put-image
+           (if enabled
+               (or breakpoint-enabled-icon
+                   (setq breakpoint-enabled-icon
+                         (find-image `((:type xpm :data
+                                              ,breakpoint-xpm-data
+                                              :ascent 100 :pointer hand)
+                                       (:type pbm :data
+                                              ,breakpoint-enabled-pbm-data
+                                              :ascent 100 :pointer hand)))))
+             (or breakpoint-disabled-icon
+                 (setq breakpoint-disabled-icon
+                       (find-image `((:type xpm :data
+                                            ,breakpoint-xpm-data
+                                            :conversion disabled
+                                            :ascent 100 :pointer hand)
+                                     (:type pbm :data
+                                            ,breakpoint-disabled-pbm-data
+                                            :ascent 100 :pointer hand))))))
+           (+ start 1)
+           putstring
+           'left-margin))
+      (when (< left-margin-width 2)
+        (save-current-buffer
+          (setq left-margin-width 2)
+          (let ((window (get-buffer-window (current-buffer) 0)))
+            (if window
+                (set-window-margins
+                 window left-margin-width right-margin-width)))))
+      (gdb-put-string
+       (propertize putstring
+                   'face (if enabled 'breakpoint-enabled 'breakpoint-disabled))
+       (1+ start)))))
+
+(defun gdb-remove-breakpoint-icons (start end &optional remove-margin)
+  (gdb-remove-strings start end)
+  (if (display-images-p)
+      (remove-images start end))
+  (when remove-margin
+    (setq left-margin-width 0)
+    (let ((window (get-buffer-window (current-buffer) 0)))
+      (if window
+          (set-window-margins
+           window left-margin-width right-margin-width)))))
+
+
+;;
+;; Assembler buffer.
+;;
+(gdb-set-buffer-rules 'gdb-assembler-buffer
+                      'gdb-assembler-buffer-name
+                      'gdb-assembler-mode)
+
+;; We can't use def-gdb-auto-update-handler because we don't want to use
+;; window-start but keep the overlay arrow/current line visible.
+(defun gdb-assembler-handler ()
+  (setq gdb-pending-triggers
+        (delq 'gdb-invalidate-assembler
+              gdb-pending-triggers))
+     (let ((buf (gdb-get-buffer 'gdb-assembler-buffer)))
+       (and buf
+            (with-current-buffer buf
+              (let* ((window (get-buffer-window buf 0))
+                     (p (window-point window))
+                    (buffer-read-only nil))
+                (erase-buffer)
+                (insert-buffer-substring (gdb-get-buffer-create
+                                          'gdb-partial-output-buffer))
+                (set-window-point window p)))))
+     ;; put customisation here
+     (gdb-assembler-custom))
+
+(defun gdb-assembler-custom ()
+  (let ((buffer (gdb-get-buffer 'gdb-assembler-buffer))
+        (pos 1) (address) (flag) (bptno))
+    (with-current-buffer buffer
+      (save-excursion
+        (if (not (equal gdb-pc-address "main"))
+            (progn
+              (goto-char (point-min))
+              (if (and gdb-pc-address
+                       (search-forward gdb-pc-address nil t))
+                  (progn
+                    (setq pos (point))
+                    (beginning-of-line)
+                    (setq fringe-indicator-alist
+                          (if (string-equal gdb-frame-number "0")
+                              nil
+                            '((overlay-arrow . hollow-right-triangle))))
+                    (or gdb-overlay-arrow-position
+                        (setq gdb-overlay-arrow-position (make-marker)))
+                    (set-marker gdb-overlay-arrow-position (point))))))
+        ;; remove all breakpoint-icons in assembler buffer before updating.
+        (gdb-remove-breakpoint-icons (point-min) (point-max))))
+    (with-current-buffer (gdb-get-buffer 'gdb-breakpoints-buffer)
+      (goto-char (point-min))
+      (while (< (point) (- (point-max) 1))
+        (forward-line 1)
+        (when (looking-at
+               "\\([0-9]+\\.?[0-9]*\\).*?\\s-+\\(.\\)\\s-+0x0*\\(\\S-+\\)")
+          (setq bptno (match-string 1))
+          (setq flag (char-after (match-beginning 2)))
+          (setq address (match-string 3))
+          (with-current-buffer buffer
+            (save-excursion
+              (goto-char (point-min))
+              (if (re-search-forward (concat "^0x0*" address) nil t)
+                  (gdb-put-breakpoint-icon (eq flag ?y) bptno)))))))
+    (if (not (equal gdb-pc-address "main"))
+        (with-current-buffer buffer
+          (set-window-point (get-buffer-window buffer 0) pos)))))
+
+(defvar gdb-assembler-mode-map
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "q" 'kill-this-buffer)
+     map))
+
+(defvar gdb-assembler-font-lock-keywords
+  '(;; <__function.name+n>
+    ("<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>"
+     (1 font-lock-function-name-face))
+    ;; 0xNNNNNNNN <__function.name+n>: opcode
+    ("^0x[0-9a-f]+ \\(<\\(\\(\\sw\\|[_.]\\)+\\)\\+[0-9]+>\\)?:[ \t]+\\(\\sw+\\)"
+     (4 font-lock-keyword-face))
+    ;; %register(at least i386)
+    ("%\\sw+" . font-lock-variable-name-face)
+    ("^\\(Dump of assembler code for function\\) \\(.+\\):"
+     (1 font-lock-comment-face)
+     (2 font-lock-function-name-face))
+    ("^\\(End of assembler dump\\.\\)" . font-lock-comment-face))
+  "Font lock keywords used in `gdb-assembler-mode'.")
+
+(defun gdb-assembler-mode ()
+  "Major mode for viewing code assembler.
+
+\\{gdb-assembler-mode-map}"
+  (kill-all-local-variables)
+  (setq major-mode 'gdb-assembler-mode)
+  (setq mode-name (concat "Machine:" gdb-selected-frame))
+  (setq gdb-overlay-arrow-position nil)
+  (add-to-list 'overlay-arrow-variable-list 'gdb-overlay-arrow-position)
+  (setq fringes-outside-margins t)
+  (setq buffer-read-only t)
+  (buffer-disable-undo)
+  (gdb-thread-identification)
+  (use-local-map gdb-assembler-mode-map)
+  (gdb-invalidate-assembler)
+  (set (make-local-variable 'font-lock-defaults)
+       '(gdb-assembler-font-lock-keywords))
+  (run-mode-hooks 'gdb-assembler-mode-hook)
+  'gdb-invalidate-assembler)
+
+(defun gdb-assembler-buffer-name ()
+  (with-current-buffer gud-comint-buffer
+    (concat "*disassembly of " (gdb-get-target-string) "*")))
+
+(defun gdb-display-assembler-buffer ()
+  "Display disassembly view."
+  (interactive)
+  (setq gdb-previous-frame nil)
+  (gdb-display-buffer
+   (gdb-get-buffer-create 'gdb-assembler-buffer) t))
+
+(defun gdb-frame-assembler-buffer ()
+  "Display disassembly view in a new frame."
+  (interactive)
+  (setq gdb-previous-frame nil)
+  (let ((special-display-regexps (append special-display-regexps '(".*")))
+        (special-display-frame-alist gdb-frame-parameters))
+    (display-buffer (gdb-get-buffer-create 'gdb-assembler-buffer))))
+
+;; modified because if gdb-pc-address has changed value a new command
+;; must be enqueued to update the buffer with the new output
+(defun gdb-invalidate-assembler (&optional ignored)
+  (if (gdb-get-buffer 'gdb-assembler-buffer)
+      (progn
+        (unless (and gdb-selected-frame
+                     (string-equal gdb-selected-frame gdb-previous-frame))
+          (if (or (not (member 'gdb-invalidate-assembler
+                               gdb-pending-triggers))
+                  (not (equal (string-to-number gdb-pc-address)
+                              (string-to-number
+                               gdb-previous-frame-pc-address))))
+          (progn
+            ;; take previous disassemble command, if any, off the queue
+            (with-current-buffer gud-comint-buffer
+              (let ((queue gdb-input-queue))
+                (dolist (item queue)
+                  (if (equal (cdr item) '(gdb-assembler-handler))
+                      (setq gdb-input-queue
+                            (delete item gdb-input-queue))))))
+            (gdb-enqueue-input
+             (list
+              (concat gdb-server-prefix "disassemble " gdb-pc-address "\n")
+                   'gdb-assembler-handler))
+            (push 'gdb-invalidate-assembler gdb-pending-triggers)
+            (setq gdb-previous-frame-pc-address gdb-pc-address)
+            (setq gdb-previous-frame gdb-selected-frame)))))))
+
+(defun gdb-get-selected-frame ()
+  (if (not (member 'gdb-get-selected-frame gdb-pending-triggers))
+      (progn
+        (if (string-equal gdb-version "pre-6.4")
+            (gdb-enqueue-input
+             (list (concat gdb-server-prefix "info frame\n")
+                   'gdb-frame-handler))
+          (gdb-enqueue-input
+            (list "server interpreter mi -stack-info-frame\n"
+                  'gdb-frame-handler-1)))
+        (push 'gdb-get-selected-frame gdb-pending-triggers))))
+
+(defun gdb-frame-handler ()
+  (setq gdb-pending-triggers
+        (delq 'gdb-get-selected-frame gdb-pending-triggers))
+  (goto-char (point-min))
+  (when (re-search-forward
+       "Stack level \\([0-9]+\\), frame at \\(0x[[:xdigit:]]+\\)" nil t)
+    (setq gdb-frame-number (match-string 1))
+    (setq gdb-frame-address (match-string 2)))
+  (goto-char (point-min))
+  (when (re-search-forward ".*=\\s-+\\(\\S-*\\)\\s-+in\\s-+\\(.*?\\)\
+\\(?: (\\(\\S-+?\\):[0-9]+?)\\)*; "
+     nil t)
+    (setq gdb-selected-frame (match-string 2))
+    (if (gdb-get-buffer 'gdb-locals-buffer)
+        (with-current-buffer (gdb-get-buffer 'gdb-locals-buffer)
+          (setq mode-name (concat "Locals:" gdb-selected-frame))))
+    (if (gdb-get-buffer 'gdb-assembler-buffer)
+        (with-current-buffer (gdb-get-buffer 'gdb-assembler-buffer)
+          (setq mode-name (concat "Machine:" gdb-selected-frame))))
+    (setq gdb-pc-address (match-string 1))
+    (if (and (match-string 3) gud-overlay-arrow-position)
+      (let ((buffer (marker-buffer gud-overlay-arrow-position))
+            (position (marker-position gud-overlay-arrow-position)))
+        (when (and buffer
+                   (string-equal (file-name-nondirectory
+                                  (buffer-file-name buffer))
+                                 (file-name-nondirectory (match-string 3))))
+          (with-current-buffer buffer
+            (setq fringe-indicator-alist
+                  (if (string-equal gdb-frame-number "0")
+                      nil
+                    '((overlay-arrow . hollow-right-triangle))))
+            (set-marker gud-overlay-arrow-position position))))))
+  (goto-char (point-min))
+  (if (re-search-forward " source language \\(\\S-+\\)\." nil t)
+      (setq gdb-current-language (match-string 1)))
+  (gdb-invalidate-assembler))
+
+
+;; Code specific to GDB 6.4
+(defconst gdb-source-file-regexp-1 "fullname=\"\\(.*?\\)\"")
+
+(defun gdb-set-gud-minor-mode-existing-buffers-1 ()
+  "Create list of source files for current GDB session.
+If buffers already exist for any of these files, `gud-minor-mode'
+is set in them."
+  (goto-char (point-min))
+  (while (re-search-forward gdb-source-file-regexp-1 nil t)
+    (push (match-string 1) gdb-source-file-list))
+  (dolist (buffer (buffer-list))
+    (with-current-buffer buffer
+      (when (member buffer-file-name gdb-source-file-list)
+        (gdb-init-buffer))))
+  (gdb-force-mode-line-update
+   (propertize "ready" 'face font-lock-variable-name-face)))
+
+;; Used for -stack-info-frame but could be used for -stack-list-frames too.
+(defconst gdb-stack-list-frames-regexp
+".*?level=\"\\(.*?\\)\".*?,addr=\"\\(.*?\\)\".*?,func=\"\\(.*?\\)\",\
+\\(?:.*?file=\".*?\".*?,fullname=\"\\(.*?\\)\".*?,line=\"\\(.*?\\)\".*?}\\|\
+from=\"\\(.*?\\)\"\\)")
+
+(defun gdb-frame-handler-1 ()
+  (setq gdb-pending-triggers
+        (delq 'gdb-get-selected-frame gdb-pending-triggers))
+  (goto-char (point-min))
+    (when (re-search-forward gdb-stack-list-frames-regexp nil t)
+      (setq gdb-frame-number (match-string 1))
+      (setq gdb-pc-address (match-string 2))
+      (setq gdb-selected-frame (match-string 3))
+      (if (gdb-get-buffer 'gdb-locals-buffer)
+          (with-current-buffer (gdb-get-buffer 'gdb-locals-buffer)
+            (setq mode-name (concat "Locals:" gdb-selected-frame))))
+      (if (gdb-get-buffer 'gdb-assembler-buffer)
+          (with-current-buffer (gdb-get-buffer 'gdb-assembler-buffer)
+            (setq mode-name (concat "Machine:" gdb-selected-frame)))))
+    (if (and (match-string 4) (match-string 5) gud-overlay-arrow-position)
+        (let ((buffer (marker-buffer gud-overlay-arrow-position))
+              (position (marker-position gud-overlay-arrow-position)))
+          (when (and buffer
+                     (string-equal (file-name-nondirectory
+                                    (buffer-file-name buffer))
+                                   (file-name-nondirectory (match-string 4))))
+            (with-current-buffer buffer
+              (setq fringe-indicator-alist
+                    (if (string-equal gdb-frame-number "0")
+                        nil
+                      '((overlay-arrow . hollow-right-triangle))))
+              (set-marker gud-overlay-arrow-position position)))))
+  (gdb-invalidate-assembler))
+
+; Uses "-var-list-children --all-values".  Needs GDB 6.4 onwards.
+(defun gdb-var-list-children-1 (varnum)
+  (gdb-enqueue-input
+   (list
+    (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+        (concat "server interpreter mi \"-var-list-children --all-values \\\""
+                varnum "\\\"\"\n")
+      (concat "-var-list-children --all-values \"" varnum "\"\n"))
+    `(lambda () (gdb-var-list-children-handler-1 ,varnum)))))
+
+(defun gdb-var-list-children-handler-1 (varnum)
+  (let* ((var-list nil)
+         (output (bindat-get-field (gdb-json-partial-output "child")))
+         (children (bindat-get-field output 'children)))
+   (catch 'child-already-watched
+      (dolist (var gdb-var-list)
+        (if (string-equal varnum (car var))
+            (progn
+              ;; With dynamic varobjs numchild may have increased.
+              (setcar (nthcdr 2 var) (bindat-get-field output 'numchild))
+              (push var var-list)
+              (dolist (child children)
+                (let ((varchild (list (bindat-get-field child 'name)
+                                      (bindat-get-field child 'exp)
+                                      (bindat-get-field child 'numchild)
+                                      (bindat-get-field child 'type)
+                                      (bindat-get-field child 'value)
+                                      nil
+                                      (bindat-get-field child 'has_more))))
+                  (if (assoc (car varchild) gdb-var-list)
+                      (throw 'child-already-watched nil))
+                  (push varchild var-list))))
+          (push var var-list)))
+      (setq gdb-var-list (nreverse var-list))))
+  (gdb-speedbar-update))
+
+; Uses "-var-update --all-values".  Needs GDB 6.4 onwards.
+(defun gdb-var-update-1 ()
+  (if (not (member 'gdb-var-update gdb-pending-triggers))
+      (progn
+        (gdb-enqueue-input
+         (list
+          (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+              "server interpreter mi \"-var-update --all-values *\"\n"
+            "-var-update --all-values *\n")
+          'gdb-var-update-handler-1))
+        (push 'gdb-var-update gdb-pending-triggers))))
+
+(defun gdb-var-update-handler-1 ()
+  (let ((changelist (bindat-get-field (gdb-json-partial-output) 'changelist)))
+    (dolist (var gdb-var-list)
+      (setcar (nthcdr 5 var) nil))
+    (let ((temp-var-list gdb-var-list))
+      (dolist (change changelist)
+        (let* ((varnum (bindat-get-field change 'name))
+               (var (assoc varnum gdb-var-list))
+               (new-num (bindat-get-field change 'new_num_children)))
+          (when var
+            (let ((scope (bindat-get-field change 'in_scope))
+                  (has-more (bindat-get-field change 'has_more)))
+              (cond ((string-equal scope "false")
+                     (if gdb-delete-out-of-scope
+                         (gdb-var-delete-1 var varnum)
+                       (setcar (nthcdr 5 var) 'out-of-scope)))
+                    ((string-equal scope "true")
+                     (setcar (nthcdr 6 var) has-more)
+                     (when (and (or (not has-more)
+                                    (string-equal has-more "0"))
+                                (not new-num)
+                                (string-equal (nth 2 var) "0"))
+                       (setcar (nthcdr 4 var)
+                               (bindat-get-field change 'value))
+                       (setcar (nthcdr 5 var) 'changed)))
+                    ((string-equal scope "invalid")
+                     (gdb-var-delete-1 var varnum)))))
+          (let ((var-list nil) var1
+                (children (bindat-get-field change 'new_children)))
+            (if new-num
+                (progn
+                  (setq var1 (pop temp-var-list))
+                  (while var1
+                    (if (string-equal varnum (car var1))
+                        (let ((new (string-to-number new-num))
+                              (previous (string-to-number (nth 2 var1))))
+                          (setcar (nthcdr 2 var1) new-num)
+                          (push var1 var-list)
+                          (cond ((> new previous)
+                                 ;; Add new children to list.
+                                 (dotimes (dummy previous)
+                                   (push (pop temp-var-list) var-list))
+                                 (dolist (child children)
+                                   (let ((varchild
+                                          (list (bindat-get-field child 'name)
+                                                (bindat-get-field child 'exp)
+                                                (bindat-get-field child 'numchild)
+                                                (bindat-get-field child 'type)
+                                                (bindat-get-field child 'value)
+                                                'changed
+                                                (bindat-get-field child 'has_more))))
+                                     (push varchild var-list))))
+                                ;; Remove deleted children from list.
+                                ((< new previous)
+                                 (dotimes (dummy new)
+                                     (push (pop temp-var-list) var-list))
+                                 (dotimes (dummy (- previous new))
+                                     (pop temp-var-list)))))
+                      (push var1 var-list))
+                    (setq var1 (pop temp-var-list)))
+                  (setq gdb-var-list (nreverse var-list)))))))))
+  (setq gdb-pending-triggers
+        (delq 'gdb-var-update gdb-pending-triggers))
+  (gdb-speedbar-update))
+
+;; Registers buffer.
+;;
+(gdb-set-buffer-rules 'gdb-registers-buffer
+                      'gdb-registers-buffer-name
+                      'gdb-registers-mode)
+
+(def-gdb-auto-update-trigger gdb-invalidate-registers-1
+  (gdb-get-buffer 'gdb-registers-buffer)
+  (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+      "server interpreter mi \"-data-list-register-values x\"\n"
+    "-data-list-register-values x\n")
+    gdb-data-list-register-values-handler)
+
+(defconst gdb-data-list-register-values-regexp
+  "{.*?number=\"\\(.*?\\)\".*?,value=\"\\(.*?\\)\".*?}")
+
+(defun gdb-data-list-register-values-handler ()
+  (setq gdb-pending-triggers (delq 'gdb-invalidate-registers-1
+                                   gdb-pending-triggers))
+  (goto-char (point-min))
+  (if (re-search-forward gdb-error-regexp nil t)
+      (let ((err (match-string 1)))
+        (with-current-buffer (gdb-get-buffer 'gdb-registers-buffer)
+          (let ((buffer-read-only nil))
+            (erase-buffer)
+            (put-text-property 0 (length err) 'face font-lock-warning-face err)
+            (insert err)
+            (goto-char (point-min)))))
+    (let ((register-list (reverse gdb-register-names))
+          (register nil) (register-string nil) (register-values nil))
+      (goto-char (point-min))
+      (while (re-search-forward gdb-data-list-register-values-regexp nil t)
+        (setq register (pop register-list))
+        (setq register-string (concat register "\t" (match-string 2) "\n"))
+        (if (member (match-string 1) gdb-changed-registers)
+            (put-text-property 0 (length register-string)
+                               'face 'font-lock-warning-face
+                               register-string))
+        (setq register-values
+              (concat register-values register-string)))
+      (let ((buf (gdb-get-buffer 'gdb-registers-buffer)))
+        (with-current-buffer buf
+          (let* ((window (get-buffer-window buf 0))
+                 (start (window-start window))
+                 (p (if window (window-point window) (point)))
+                 (buffer-read-only nil))
+            (erase-buffer)
+            (insert register-values)
+            (if window
+                (progn
+                  (set-window-start window start)
+                  (set-window-point window p))
+              (goto-char p)))))))
+  (gdb-data-list-register-values-custom))
+
+(defun gdb-data-list-register-values-custom ()
+  (with-current-buffer (gdb-get-buffer 'gdb-registers-buffer)
+    (save-excursion
+      (let ((buffer-read-only nil)
+            start end)
+        (goto-char (point-min))
+        (while (< (point) (point-max))
+          (setq start (line-beginning-position))
+          (setq end (line-end-position))
+          (when (looking-at "^[^\t]+")
+            (unless (string-equal (match-string 0) "No registers.")
+              (put-text-property start (match-end 0)
+                                 'face font-lock-variable-name-face)
+              (add-text-properties start end
+                                   '(help-echo "mouse-2: edit value"
+                                     mouse-face highlight))))
+          (forward-line 1))))))
+
+;; Needs GDB 6.4 onwards (used to fail with no stack).
+(defun gdb-get-changed-registers ()
+  (if (and (gdb-get-buffer 'gdb-registers-buffer)
+           (not (member 'gdb-get-changed-registers gdb-pending-triggers)))
+      (progn
+        (gdb-enqueue-input
+         (list
+          (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+              "server interpreter mi -data-list-changed-registers\n"
+            "-data-list-changed-registers\n")
+          'gdb-get-changed-registers-handler))
+        (push 'gdb-get-changed-registers gdb-pending-triggers))))
+
+(defconst gdb-data-list-register-names-regexp "\"\\(.*?\\)\"")
+
+(defun gdb-get-changed-registers-handler ()
+  (setq gdb-pending-triggers
+        (delq 'gdb-get-changed-registers gdb-pending-triggers))
+  (setq gdb-changed-registers nil)
+  (goto-char (point-min))
+  (while (re-search-forward gdb-data-list-register-names-regexp nil t)
+    (push (match-string 1) gdb-changed-registers)))
+
+
+;; Locals buffer.
+;;
+;; uses "-stack-list-locals --simple-values". Needs GDB 6.1 onwards.
+(gdb-set-buffer-rules 'gdb-locals-buffer
+                      'gdb-locals-buffer-name
+                      'gdb-locals-mode)
+
+(def-gdb-auto-update-trigger gdb-invalidate-locals-1
+  (gdb-get-buffer 'gdb-locals-buffer)
+  (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
+      "server interpreter mi -\"stack-list-locals --simple-values\"\n"
+    "-stack-list-locals --simple-values\n")
+  gdb-stack-list-locals-handler)
+
+(defconst gdb-stack-list-locals-regexp
+  "{.*?name=\"\\(.*?\\)\".*?,type=\"\\(.*?\\)\"")
+
+(defvar gdb-locals-watch-map-1
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "\r" 'gud-watch)
+    (define-key map [mouse-2] 'gud-watch)
+    map)
+  "Keymap to create watch expression of a complex data type local variable.")
+
+(defvar gdb-edit-locals-map-1
+  (let ((map (make-sparse-keymap)))
+    (suppress-keymap map)
+    (define-key map "\r" 'gdb-edit-locals-value)
+    (define-key map [mouse-2] 'gdb-edit-locals-value)
+    map)
+  "Keymap to edit value of a simple data type local variable.")
+
+(defun gdb-edit-locals-value (&optional event)
+  "Assign a value to a variable displayed in the locals buffer."
+  (interactive (list last-input-event))
+  (save-excursion
+    (if event (posn-set-point (event-end event)))
+    (beginning-of-line)
+    (let* ((var (current-word))
+           (value (read-string (format "New value (%s): " var))))
+      (gdb-enqueue-input
+       (list (concat  gdb-server-prefix "set variable " var " = " value "\n")
+             'ignore)))))
+
+;; Dont display values of arrays or structures.
+;; These can be expanded using gud-watch.
+(defun gdb-stack-list-locals-handler ()
+  (setq gdb-pending-triggers (delq 'gdb-invalidate-locals-1
+                                  gdb-pending-triggers))
+  (goto-char (point-min))
+  (if (re-search-forward gdb-error-regexp nil t)
+      (let ((err (match-string 1)))
+        (with-current-buffer (gdb-get-buffer 'gdb-locals-buffer)
+          (let ((buffer-read-only nil))
+            (erase-buffer)
+            (insert err)
+            (goto-char (point-min)))))
+    (let (local locals-list)
+      (goto-char (point-min))
+      (while (re-search-forward gdb-stack-list-locals-regexp nil t)
+        (let ((local (list (match-string 1)
+                           (match-string 2)
+                           nil)))
+          (if (looking-at ",value=\\(\".*\"\\).*?}")
+              (setcar (nthcdr 2 local) (read (match-string 1))))
+          (push local locals-list)))
+      (let ((buf (gdb-get-buffer 'gdb-locals-buffer)))
+        (and buf (with-current-buffer buf
+                   (let* ((window (get-buffer-window buf 0))
+                          (start (window-start window))
+                          (p (if window (window-point window) (point)))
+                          (buffer-read-only nil) (name) (value))
+                     (erase-buffer)
+                     (dolist (local locals-list)
+                       (setq name (car local))
+                       (setq value (nth 2 local))
+                       (if (or (not value)
+                               (string-match "^\\0x" value))
+                           (add-text-properties 0 (length name)
+                                `(mouse-face highlight
+                                  help-echo "mouse-2: create watch expression"
+                                  local-map ,gdb-locals-watch-map-1)
+                                name)
+                         (add-text-properties 0 (length value)
+                              `(mouse-face highlight
+                                help-echo "mouse-2: edit value"
+                                local-map ,gdb-edit-locals-map-1)
+                              value))
+                       (insert
+                        (concat name "\t" (nth 1 local)
+                                "\t" value "\n")))
+                     (if window
+                         (progn
+                           (set-window-start window start)
+                           (set-window-point window p))
+                       (goto-char p)))))))))
+
+(defun gdb-get-register-names ()
+  "Create a list of register names."
+  (goto-char (point-min))
+  (while (re-search-forward gdb-data-list-register-names-regexp nil t)
+    (push (match-string 1) gdb-register-names)))
+
+(provide 'gdb-ui)
+
+;; arch-tag: e9fb00c5-74ef-469f-a088-37384caae352
+;;; gdb-ui.el ends here
diff --git a/lisp/progmodes/gud.el b/lisp/progmodes/gud.el
index 9b8947a616a..5741e4e187a 100644
--- a/lisp/progmodes/gud.el
+++ b/lisp/progmodes/gud.el
@@ -43,8 +43,10 @@
 (require 'comint)
 
 (defvar gdb-active-process)
+(defvar gdb-recording)
 (defvar gdb-define-alist)
 (defvar gdb-macro-info)
+(defvar gdb-server-prefix)
 (defvar gdb-show-changed-values)
 (defvar gdb-source-window)
 (defvar gdb-var-list)
@@ -124,51 +126,77 @@ Used to grey out relevant toolbar icons.")
                 (throw 'info-found nil))))
        nil 0)
       (select-frame (make-frame)))
-    (if (eq gud-minor-mode 'gdbmi)
+    (if (memq gud-minor-mode '(gdbmi gdba))
         (info "(emacs)GDB Graphical Interface")
       (info "(emacs)Debuggers"))))
 
 (defun gud-tool-bar-item-visible-no-fringe ()
   (not (or (eq (buffer-local-value 'major-mode (window-buffer)) 'speedbar-mode)
-           (and (eq gud-minor-mode 'gdbmi)
+           (and (memq gud-minor-mode '(gdbmi gdba))
                 (> (car (window-fringes)) 0)))))
 
-(declare-function gdb-gud-context-command "gdb-mi.el")
-
 (defun gud-stop-subjob ()
   (interactive)
   (with-current-buffer gud-comint-buffer
-    (cond ((string-equal gud-target-name "emacs")
-           (comint-stop-subjob))
-          ((eq gud-minor-mode 'jdb)
-           (gud-call "suspend"))
-          ((eq gud-minor-mode 'gdbmi)
-           (gud-call (gdb-gud-context-command "-exec-interrupt")))
-          (t 
-           (comint-interrupt-subjob)))))
+    (if (string-equal gud-target-name "emacs")
+        (comint-stop-subjob)
+      (if (eq gud-minor-mode 'jdb)
+          (gud-call "suspend")
+        (comint-interrupt-subjob)))))
 
 (easy-mmode-defmap gud-menu-map
   '(([help]     "Info (debugger)" . gud-goto-info)
+    ([rfinish]  menu-item "Reverse Finish Function" gud-rfinish
+                  :enable (not gud-running)
+                  :visible (and gdb-recording
+                                (eq gud-minor-mode 'gdba)))
+    ([rstepi]   menu-item "Reverse Step Instruction" gud-rstepi
+                  :enable (not gud-running)
+                  :visible (and gdb-recording
+                                (eq gud-minor-mode 'gdba)))
+    ([rnexti]   menu-item "Reverse Next Instruction" gud-rnexti
+                  :enable (not gud-running)
+                  :visible (and gdb-recording
+                                (eq gud-minor-mode 'gdba)))
+    ([rstep]    menu-item "Reverse Step Line" gud-rstep
+                  :enable (not gud-running)
+                  :visible (and gdb-recording
+                                (eq gud-minor-mode 'gdba)))
+    ([rnext]    menu-item "Reverse Next Line" gud-rnext
+                  :enable (not gud-running)
+                  :visible (and gdb-recording
+                                (eq gud-minor-mode 'gdba)))
+    ([rcont]    menu-item "Reverse Continue" gud-rcont
+                  :enable (not gud-running)
+                  :visible (and gdb-recording
+                                (eq gud-minor-mode 'gdba)))
+    ([recstart] menu-item "Start Recording" gdb-toggle-recording-1
+                  :visible (and (not gdb-recording)
+                                (eq gud-minor-mode 'gdba)))
+    ([recstop] menu-item "Stop Recording" gdb-toggle-recording
+                  :visible (and gdb-recording
+                                (eq gud-minor-mode 'gdba)))
     ([tooltips] menu-item "Show GUD tooltips" gud-tooltip-mode
                   :enable (and (not emacs-basic-display)
                                (display-graphic-p)
                                (fboundp 'x-show-tip))
                   :visible (memq gud-minor-mode
-                                '(gdbmi dbx sdb xdb pdb))
+                                '(gdbmi gdba dbx sdb xdb pdb))
                   :button (:toggle . gud-tooltip-mode))
     ([refresh]  "Refresh" . gud-refresh)
     ([run]      menu-item "Run" gud-run
                   :enable (not gud-running)
                   :visible (memq gud-minor-mode '(gdbmi gdb dbx jdb)))
     ([go]       menu-item (if gdb-active-process "Continue" "Run") gud-go
-                  :visible (and (eq gud-minor-mode 'gdbmi)
-                                (gdb-show-run-p)))
+                  :visible (and (not gud-running)
+                                (eq gud-minor-mode 'gdba)))
     ([stop]     menu-item "Stop" gud-stop-subjob
-                  :visible (or (not (memq gud-minor-mode '(gdbmi pdb)))
-                               (gdb-show-stop-p)))
+                  :visible (or (not (memq gud-minor-mode '(gdba pdb)))
+                               (and gud-running
+                                    (eq gud-minor-mode 'gdba))))
     ([until]    menu-item "Continue to selection" gud-until
                   :enable (not gud-running)
-                  :visible (and (memq gud-minor-mode '(gdbmi gdb perldb))
+                  :visible (and (memq gud-minor-mode '(gdbmi gdba gdb perldb))
                                 (gud-tool-bar-item-visible-no-fringe)))
     ([remove]   menu-item "Remove Breakpoint" gud-remove
                   :enable (not gud-running)
@@ -176,52 +204,50 @@ Used to grey out relevant toolbar icons.")
     ([tbreak]   menu-item "Temporary Breakpoint" gud-tbreak
                   :enable (not gud-running)
                   :visible (memq gud-minor-mode
-                                '(gdbmi gdb sdb xdb)))
+                                '(gdbmi gdba gdb sdb xdb)))
     ([break]    menu-item "Set Breakpoint" gud-break
                   :enable (not gud-running)
                   :visible (gud-tool-bar-item-visible-no-fringe))
     ([up]       menu-item "Up Stack" gud-up
                   :enable (not gud-running)
                   :visible (memq gud-minor-mode
-                                 '(gdbmi gdb dbx xdb jdb pdb)))
+                                 '(gdbmi gdba gdb dbx xdb jdb pdb)))
     ([down]     menu-item "Down Stack" gud-down
                   :enable (not gud-running)
                   :visible (memq gud-minor-mode
-                                 '(gdbmi gdb dbx xdb jdb pdb)))
+                                 '(gdbmi gdba gdb dbx xdb jdb pdb)))
     ([pp]       menu-item "Print S-expression" gud-pp
                   :enable (and (not gud-running)
                                   gdb-active-process)
                   :visible (and (string-equal
                                  (buffer-local-value
                                   'gud-target-name gud-comint-buffer) "emacs")
-                                (eq gud-minor-mode 'gdbmi)))
-    ([print*]   menu-item (if (eq gud-minor-mode 'jdb)
-                              "Dump object"
-                            "Print Dereference") gud-pstar
+                                (eq gud-minor-mode 'gdba)))
+    ([print*]   menu-item "Print Dereference" gud-pstar
                   :enable (not gud-running)
-                  :visible (memq gud-minor-mode '(gdbmi gdb jdb)))
+                  :visible (memq gud-minor-mode '(gdbmi gdba gdb)))
     ([print]    menu-item "Print Expression" gud-print
                   :enable (not gud-running))
     ([watch]    menu-item "Watch Expression" gud-watch
                   :enable (not gud-running)
-                  :visible (eq gud-minor-mode 'gdbmi))
+                  :visible (memq gud-minor-mode '(gdbmi gdba)))
     ([finish]   menu-item "Finish Function" gud-finish
                   :enable (not gud-running)
                   :visible (memq gud-minor-mode
-                                 '(gdbmi gdb xdb jdb pdb)))
+                                 '(gdbmi gdba gdb xdb jdb pdb)))
     ([stepi]    menu-item "Step Instruction" gud-stepi
                   :enable (not gud-running)
-                  :visible (memq gud-minor-mode '(gdbmi gdb dbx)))
+                  :visible (memq gud-minor-mode '(gdbmi gdba gdb dbx)))
     ([nexti]    menu-item "Next Instruction" gud-nexti
                   :enable (not gud-running)
-                  :visible (memq gud-minor-mode '(gdbmi gdb dbx)))
+                  :visible (memq gud-minor-mode '(gdbmi gdba gdb dbx)))
     ([step]     menu-item "Step Line" gud-step
                   :enable (not gud-running))
     ([next]     menu-item "Next Line" gud-next
                   :enable (not gud-running))
     ([cont]     menu-item "Continue" gud-cont
                   :enable (not gud-running)
-                  :visible (not (eq gud-minor-mode 'gdbmi))))
+                  :visible (not (eq gud-minor-mode 'gdba))))
   "Menu for `gud-mode'."
   :name "Gud")
 
@@ -243,22 +269,21 @@ Used to grey out relevant toolbar icons.")
         . (,(propertize "next" 'face 'font-lock-doc-face) . gud-next))
        ([menu-bar until] menu-item
         ,(propertize "until" 'face 'font-lock-doc-face) gud-until
-                  :visible (memq gud-minor-mode '(gdbmi gdb perldb)))
+                  :visible (memq gud-minor-mode '(gdbmi gdba gdb perldb)))
        ([menu-bar cont] menu-item
         ,(propertize "cont" 'face 'font-lock-doc-face) gud-cont
-        :visible (not (eq gud-minor-mode 'gdbmi)))
+        :visible (not (eq gud-minor-mode 'gdba)))
        ([menu-bar run] menu-item
         ,(propertize "run" 'face 'font-lock-doc-face) gud-run
         :visible (memq gud-minor-mode '(gdbmi gdb dbx jdb)))
        ([menu-bar go] menu-item
         ,(propertize " go " 'face 'font-lock-doc-face) gud-go
-        :visible (and (eq gud-minor-mode 'gdbmi)
-                      (gdb-show-run-p)))
+        :visible (and (not gud-running)
+                      (eq gud-minor-mode 'gdba)))
        ([menu-bar stop] menu-item
         ,(propertize "stop" 'face 'font-lock-doc-face) gud-stop-subjob
-        :visible (or (and (eq gud-minor-mode 'gdbmi)
-                          (gdb-show-stop-p))
-                     (not (eq gud-minor-mode 'gdbmi))))
+        :visible (and gud-running
+                     (eq gud-minor-mode 'gdba)))
        ([menu-bar print]
         . (,(propertize "print" 'face 'font-lock-doc-face) . gud-print))
        ([menu-bar tools] . undefined)
@@ -297,6 +322,14 @@ Used to grey out relevant toolbar icons.")
                  (gud-stepi . "gud/stepi")
                  (gud-up . "gud/up")
                  (gud-down . "gud/down")
+                 (gdb-toggle-recording-1 . "gud/recstart")
+                 (gdb-toggle-recording . "gud/recstop")
+                 (gud-rcont . "gud/rcont")
+                 (gud-rnext . "gud/rnext")
+                 (gud-rstep . "gud/rstep")
+                 (gud-rfinish . "gud/rfinish")
+                 (gud-rnexti . "gud/rnexti")
+                 (gud-rstepi . "gud/rstepi")
                  (gud-goto-info . "info"))
                map)
       (tool-bar-local-item-from-menu
@@ -321,7 +354,7 @@ Uses `gud-<MINOR-MODE>-directories' to find the source files."
         (setq directories (cdr directories)))
       result)))
 
-(declare-function gdb-create-define-alist "gdb-mi" ())
+(declare-function gdb-create-define-alist "gdb-ui" ())
 
 (defun gud-find-file (file)
   ;; Don't get confused by double slashes in the name that comes from GDB.
@@ -337,7 +370,7 @@ Uses `gud-<MINOR-MODE>-directories' to find the source files."
         (set (make-local-variable 'gud-minor-mode) minor-mode)
         (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
         (when (and gud-tooltip-mode
-                   (eq gud-minor-mode 'gdbmi))
+                   (memq gud-minor-mode '(gdbmi gdba)))
           (make-local-variable 'gdb-define-alist)
           (unless  gdb-define-alist (gdb-create-define-alist))
           (add-hook 'after-save-hook 'gdb-create-define-alist nil t))
@@ -466,21 +499,21 @@ The value t means that there is no stack, and we are in display-file mode.")
 
 (defvar gud-speedbar-menu-items
   '(["Jump to stack frame" speedbar-edit-line
-     :visible (not (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-                    'gdbmi))]
+     :visible (not (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+                    '(gdbmi gdba)))]
     ["Edit value" speedbar-edit-line
-     :visible (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-                    'gdbmi)]
+     :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+                    '(gdbmi gdba))]
     ["Delete expression" gdb-var-delete
-     :visible (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-                    'gdbmi)]
+     :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+                    '(gdbmi gdba))]
     ["Auto raise frame" gdb-speedbar-auto-raise
      :style toggle :selected gdb-speedbar-auto-raise
-     :visible (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-                    'gdbmi)]
+     :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+                    '(gdbmi gdba))]
     ("Output Format"
-     :visible (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-                    'gdbmi)
+     :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+                    '(gdbmi gdba))
      ["Binary" (gdb-var-set-format "binary") t]
      ["Natural" (gdb-var-set-format  "natural") t]
      ["Hexadecimal" (gdb-var-set-format "hexadecimal") t]))
@@ -509,7 +542,7 @@ required by the caller."
           (start (window-start window))
           (p (window-point window)))
       (cond
-       ((eq minor-mode 'gdbmi)
+       ((memq minor-mode '(gdbmi gdba))
         (erase-buffer)
         (insert "Watch Expressions:\n")
         (let ((var-list gdb-var-list) parent)
@@ -599,7 +632,7 @@ required by the caller."
                  (car frame)
                  'speedbar-file-face
                  'speedbar-highlight-face
-                 (cond ((memq minor-mode '(gdbmi gdb))
+                 (cond ((memq minor-mode '(gdbmi gdba gdb))
                         'gud-gdb-goto-stackframe)
                        (t (error "Should never be here")))
                  frame t))))
@@ -656,6 +689,8 @@ The option \"--fullname\" must be included in this value."
        ;; Set the accumulator to the remaining text.
        gud-marker-acc (substring gud-marker-acc (match-end 0))))
 
+    ;; Check for annotations and change gud-minor-mode to 'gdba if
+    ;; they are found.
     (while (string-match "\n\032\032\\(.*\\)\n" gud-marker-acc)
       (let ((match (match-string 1 gud-marker-acc)))
 
@@ -719,10 +754,10 @@ The option \"--fullname\" must be included in this value."
 (defvar gud-filter-pending-text nil
   "Non-nil means this is text that has been saved for later in `gud-filter'.")
 
-;; If in gdb mode, gdb-mi is loaded.
-(declare-function gdb-restore-windows "gdb-mi" ())
+;; If in gdba mode, gdb-ui is loaded.
+(declare-function gdb-restore-windows "gdb-ui" ())
 
-;; The old gdb command (text command mode).  The new one is in gdb-mi.el.
+;; The old gdb command (text command mode).  The new one is in gdb-ui.el.
 ;;;###autoload
 (defun gud-gdb (command-line)
   "Run gdb on program FILE in buffer *gud-FILE*.
@@ -733,10 +768,10 @@ directory and source-file directory for your debugger."
   (when (and gud-comint-buffer
            (buffer-name gud-comint-buffer)
            (get-buffer-process gud-comint-buffer)
-           (with-current-buffer gud-comint-buffer (eq gud-minor-mode 'gdbmi)))
-    (gdb-restore-windows)
-    (error
-     "Multiple debugging requires restarting in text command mode"))
+           (with-current-buffer gud-comint-buffer (eq gud-minor-mode 'gdba)))
+        (gdb-restore-windows)
+        (error
+         "Multiple debugging requires restarting in text command mode"))
 
   (gud-common-init command-line nil 'gud-gdb-marker-filter)
   (set (make-local-variable 'gud-minor-mode) 'gdb)
@@ -2607,7 +2642,7 @@ It is saved for when this flag is not set.")
 (defvar gud-overlay-arrow-position nil)
 (add-to-list 'overlay-arrow-variable-list 'gud-overlay-arrow-position)
 
-(declare-function gdb-reset "gdb-mi" ())
+(declare-function gdb-reset "gdb-ui" ())
 
 (defun gud-sentinel (proc msg)
   (cond ((null (buffer-name (process-buffer proc)))
@@ -2619,14 +2654,14 @@ It is saved for when this flag is not set.")
                   (string-equal speedbar-initial-expansion-list-name "GUD"))
              (speedbar-change-initial-expansion-list
               speedbar-previously-used-expansion-list-name))
-         (if (eq gud-minor-mode-type 'gdbmi)
+         (if (memq gud-minor-mode-type '(gdbmi gdba))
              (gdb-reset)
            (gud-reset)))
         ((memq (process-status proc) '(signal exit))
          ;; Stop displaying an arrow in a source file.
          (setq gud-overlay-arrow-position nil)
-         (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-                   'gdbmi)
+         (if (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+                   '(gdba gdbmi))
              (gdb-reset)
            (gud-reset))
          (let* ((obuf (current-buffer)))
@@ -2657,9 +2692,7 @@ It is saved for when this flag is not set.")
 (defun gud-kill-buffer-hook ()
   (setq gud-minor-mode-type gud-minor-mode)
   (condition-case nil
-      (progn
-        (kill-process (get-buffer-process (current-buffer)))
-        (delete-process (get-process "gdb-inferior")))
+      (kill-process (get-buffer-process (current-buffer)))
     (error nil)))
 
 (defun gud-reset ()
@@ -2682,8 +2715,8 @@ Obeying it means displaying in another window the specified file and line."
 
 (declare-function global-hl-line-highlight  "hl-line" ())
 (declare-function hl-line-highlight         "hl-line" ())
-(declare-function gdb-display-source-buffer "gdb-mi"  (buffer))
-(declare-function gdb-display-buffer "gdb-mi" (buf dedicated &optional size))
+(declare-function gdb-display-source-buffer "gdb-ui"  (buffer))
+(declare-function gdb-display-buffer "gdb-ui" (buf dedicated &optional size))
 
 ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen
 ;; and that its line LINE is visible.
@@ -2699,7 +2732,7 @@ Obeying it means displaying in another window the specified file and line."
             (gud-find-file true-file)))
          (window (and buffer
                       (or (get-buffer-window buffer)
-                          (if (eq gud-minor-mode 'gdbmi)
+                          (if (memq gud-minor-mode '(gdbmi gdba))
                               (or (if (get-buffer-window buffer 'visible)
                                       (display-buffer buffer nil 'visible))
                                   (unless (gdb-display-source-buffer buffer)
@@ -2736,7 +2769,7 @@ Obeying it means displaying in another window the specified file and line."
                    (goto-char pos))))
           (when window
             (set-window-point window gud-overlay-arrow-position)
-            (if (eq gud-minor-mode 'gdbmi)
+            (if (memq gud-minor-mode '(gdbmi gdba))
                 (setq gdb-source-window window)))))))
 
 ;; The gud-call function must do the right thing whether its invoking
@@ -2842,7 +2875,7 @@ Obeying it means displaying in another window the specified file and line."
             (forward-line 0))
           (if (looking-at comint-prompt-regexp)
               (set-marker gud-delete-prompt-marker (point)))
-          (if (eq gud-minor-mode 'gdbmi)
+          (if (memq gud-minor-mode '(gdbmi gdba))
               (apply comint-input-sender (list proc command))
             (process-send-string proc (concat command "\n"))))))))
 
@@ -3268,14 +3301,14 @@ Treats actions as defuns."
   (gud-tooltip-activate-mouse-motions-if-enabled)
   (if (and gud-comint-buffer
            (buffer-name gud-comint-buffer); gud-comint-buffer might be killed
-           (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-                 'gdbmi))
+           (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
+                 '(gdbmi gdba)))
       (if gud-tooltip-mode
           (progn
             (dolist (buffer (buffer-list))
               (unless (eq buffer gud-comint-buffer)
                 (with-current-buffer buffer
-                  (when (and (eq gud-minor-mode 'gdbmi)
+                  (when (and (memq gud-minor-mode '(gdbmi gdba))
                              (not (string-match "\\`\\*.+\\*\\'"
                                                 (buffer-name))))
                     (make-local-variable 'gdb-define-alist)
@@ -3400,8 +3433,8 @@ With arg, dereference expr if ARG is positive, otherwise do not derereference."
 ; Larger arrays (say 400 elements) are displayed in
 ; the tooltip incompletely and spill over into the gud buffer.
 ; Switching the process-filter creates timing problems and
-; it may be difficult to do better. Using GDB/MI as in
-; gdb-mi.el gets round this problem.
+; it may be difficult to do better. Using annotations as in
+; gdb-ui.el gets round this problem.
 (defun gud-tooltip-process-output (process output)
   "Process debugger output and show it in a tooltip window."
   (set-process-filter process gud-tooltip-original-filter)
@@ -3411,12 +3444,12 @@ With arg, dereference expr if ARG is positive, otherwise do not derereference."
 (defun gud-tooltip-print-command (expr)
   "Return a suitable command to print the expression EXPR."
   (case gud-minor-mode
-        (gdbmi (concat "-data-evaluate-expression " expr))
-        (dbx (concat "print " expr))
+        (gdba (concat "server print " expr))
+        ((dbx gdbmi) (concat "print " expr))
         ((xdb pdb) (concat "p " expr))
         (sdb (concat expr "/"))))
 
-(declare-function gdb-input "gdb-mi" (item))
+(declare-function gdb-enqueue-input "gdb-ui" (item))
 (declare-function tooltip-expr-to-print "tooltip" (event))
 (declare-function tooltip-event-buffer "tooltip" (event))
 
@@ -3436,12 +3469,12 @@ This function must return nil if it doesn't handle EVENT."
                (buffer-name gud-comint-buffer); might be killed
                (setq process (get-buffer-process gud-comint-buffer))
                (posn-point (event-end event))
-               (or (and (eq gud-minor-mode 'gdbmi) (not gdb-active-process))
+               (or (and (eq gud-minor-mode 'gdba) (not gdb-active-process))
                    (progn (setq gud-tooltip-event event)
                           (eval (cons 'and gud-tooltip-display)))))
       (let ((expr (tooltip-expr-to-print event)))
         (when expr
-          (if (and (eq gud-minor-mode 'gdbmi)
+          (if (and (eq gud-minor-mode 'gdba)
                    (not gdb-active-process))
               (progn
                 (with-current-buffer (tooltip-event-buffer event)
@@ -3459,13 +3492,13 @@ This function must return nil if it doesn't handle EVENT."
                 (message-box "Using GUD tooltips in this mode is unsafe\n\
 so they have been disabled."))
               (unless (null cmd) ; CMD can be nil if unknown debugger
-                (if (eq gud-minor-mode 'gdbmi)
+                (if (memq gud-minor-mode '(gdba gdbmi))
                       (if gdb-macro-info
-                          (gdb-input
+                          (gdb-enqueue-input
                            (list (concat
-                                  "server macro expand " expr "\n")
+                                  gdb-server-prefix "macro expand " expr "\n")
                                  `(lambda () (gdb-tooltip-print-1 ,expr))))
-                        (gdb-input
+                        (gdb-enqueue-input
                          (list  (concat cmd "\n")
                                  `(lambda () (gdb-tooltip-print ,expr)))))
                   (setq gud-tooltip-original-filter (process-filter process))