code.delx.au - gnu-emacs/blob - lisp/progmodes/gdb-ui.el

   1 ;;; gdb-ui.el --- User Interface for running GDB
   2
   3 ;; Author: Nick Roberts <nickrob@gnu.org>
   4 ;; Maintainer: FSF
   5 ;; Keywords: unix, tools
   6
   7 ;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008
   8 ;; Free Software Foundation, Inc.
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software; you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation; either version 3, or (at your option)
  15 ;; any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  25 ;; Boston, MA 02110-1301, USA.
  26
  27 ;;; Commentary:
  28
  29 ;; This mode acts as a graphical user interface to GDB.  You can interact with
  30 ;; GDB through the GUD buffer in the usual way, but there are also further
  31 ;; buffers which control the execution and describe the state of your program.
  32 ;; It separates the input/output of your program from that of GDB, if
  33 ;; required, and watches expressions in the speedbar.  It also uses features of
  34 ;; Emacs 21 such as the fringe/display margin for breakpoints, and the toolbar
  35 ;; (see the GDB Graphical Interface section in the Emacs info manual).
  36
  37 ;; By default, M-x gdb will start the debugger.
  38
  39 ;; This file has evolved from gdba.el that was included with GDB 5.0 and
  40 ;; written by Tom Lord and Jim Kingdon.  It uses GDB's annotation interface.
  41 ;; You don't need to know about annotations to use this mode as a debugger,
  42 ;; but if you are interested developing the mode itself, see the Annotations
  43 ;; section in the GDB info manual.
  44
  45 ;; GDB developers plan to make the annotation interface obsolete.  A new
  46 ;; interface called GDB/MI (machine interface) has been designed to replace it.
  47 ;; Some GDB/MI commands are used in this file through the CLI command
  48 ;; 'interpreter mi <mi-command>'.  To help with the process of fully migrating
  49 ;; Emacs from annotations to GDB/MI, there is an experimental package called
  50 ;; gdb-mi in the Emacs Lisp Package Archive ("http://tromey.com/elpa/").  It
  51 ;; comprises of modified gud.el and a file called gdb-mi.el which replaces
  52 ;; gdb-ui.el.  When installed, this overrides the current files and invoking
  53 ;; M-x gdb will use GDB/MI directly (starts with "gdb -i=mi").  When deleted
  54 ;; ('d' followed by 'x' in Package Menu mode), the files are deleted and old
  55 ;; functionality restored.  This provides a convenient way to review the
  56 ;; current status/contribute to its improvement.  For someone who just wants to
  57 ;; use GDB, however, the current mode in Emacs 22 is a much better option.
  58 ;; There is also a file, also called gdb-mi.el, a version of which is included
  59 ;; the GDB distribution.  This will probably only work with versions
  60 ;; distributed with GDB 6.5 or later.  Unlike the version in ELPA it works on
  61 ;; top of gdb-ui.el and you can only start it with M-x gdbmi.
  62
  63 ;; This mode SHOULD WORK WITH GDB 5.0 or later but you will NEED AT LEAST
  64 ;; GDB 6.0 to use watch expressions.  It works best with GDB 6.4 or later
  65 ;; where watch expressions will update more quickly.
  66
  67 ;;; Windows Platforms:
  68
  69 ;; If you are using Emacs and GDB on Windows you will need to flush the buffer
  70 ;; explicitly in your program if you want timely display of I/O in Emacs.
  71 ;; Alternatively you can make the output stream unbuffered, for example, by
  72 ;; using a macro:
  73
  74 ;;           #ifdef UNBUFFERED
  75 ;;           setvbuf (stdout, (char *) NULL, _IONBF, 0);
  76 ;;           #endif
  77
  78 ;; and compiling with -DUNBUFFERED while debugging.
  79
  80 ;; If you are using Cygwin GDB and find that the source is not being displayed
  81 ;; in Emacs when you step through it, possible solutions are to:
  82
  83 ;;   1) Use Cygwin X Windows and Cygwin Emacs.
  84 ;;        (Since 22.1 Emacs builds under Cygwin.)
  85 ;;   2) Use MinGW GDB instead.
  86 ;;   3) Use cygwin-mount.el
  87
  88 ;;; Known Bugs:
  89
  90 ;; 1) Cannot handle multiple debug sessions.
  91 ;; 2) If you wish to call procedures from your program in GDB
  92 ;;    e.g "call myproc ()", "p mysquare (5)" then use level 2 annotations
  93 ;;    "gdb --annotate=2 myprog" to keep source buffer/selected frame fixed.
  94 ;; 3) After detaching from a process, clicking on the "GO" icon on toolbar
  95 ;;    (gud-go) sends "continue" to GDB (should be "run").
  96
  97 ;;; TODO:
  98
  99 ;; 1) Use MI command -data-read-memory for memory window.
 100 ;; 2) Use tree-widget.el instead of the speedbar for watch-expressions?
 101 ;; 3) Mark breakpoint locations on scroll-bar of source buffer?
 102
 103 ;;; Code:
 104
 105 (require 'gud)
 106
 107 (defvar tool-bar-map)
 108 (defvar speedbar-initial-expansion-list-name)
 109
 110 (defvar gdb-pc-address nil "Initialization for Assembler buffer.
 111 Set to \"main\" at start if `gdb-show-main' is t.")
 112 (defvar gdb-frame-address nil "Identity of frame for watch expression.")
 113 (defvar gdb-previous-frame-address nil)
 114 (defvar gdb-memory-address "main")
 115 (defvar gdb-previous-frame nil)
 116 (defvar gdb-selected-frame nil)
 117 (defvar gdb-frame-number nil)
 118 (defvar gdb-current-language nil)
 119 (defvar gdb-var-list nil
 120   "List of variables in watch window.
 121 Each element has the form (VARNUM EXPRESSION NUMCHILD TYPE VALUE STATUS FP)
 122 where STATUS is nil (`unchanged'), `changed' or `out-of-scope', FP the frame
 123 address for root variables.")
 124 (defvar gdb-main-file nil "Source file from which program execution begins.")
 125 (defvar gud-old-arrow nil)
 126 (defvar gdb-thread-indicator nil)
 127 (defvar gdb-overlay-arrow-position nil)
 128 (defvar gdb-stack-position nil)
 129 (defvar gdb-server-prefix nil)
 130 (defvar gdb-flush-pending-output nil)
 131 (defvar gdb-location-alist nil
 132   "Alist of breakpoint numbers and full filenames.  Only used for files that
 133 Emacs can't find.")
 134 (defvar gdb-active-process nil
 135   "GUD tooltips display variable values when t, and macro definitions otherwise.")
 136 (defvar gdb-error "Non-nil when GDB is reporting an error.")
 137 (defvar gdb-macro-info nil
 138   "Non-nil if GDB knows that the inferior includes preprocessor macro info.")
 139 (defvar gdb-buffer-fringe-width nil)
 140 (defvar gdb-signalled nil)
 141 (defvar gdb-source-window nil)
 142 (defvar gdb-inferior-status nil)
 143 (defvar gdb-continuation nil)
 144 (defvar gdb-look-up-stack nil)
 145 (defvar gdb-frame-begin nil
 146   "Non-nil when GDB generates frame-begin annotation.")
 147 (defvar gdb-printing t)
 148 (defvar gdb-parent-bptno-enabled nil)
 149 (defvar gdb-ready nil)
 150 (defvar gdb-stack-update nil)
 151 (defvar gdb-early-user-input nil)
 152
 153 (defvar gdb-buffer-type nil
 154   "One of the symbols bound in `gdb-buffer-rules'.")
 155 (make-variable-buffer-local 'gdb-buffer-type)
 156
 157 (defvar gdb-input-queue ()
 158   "A list of gdb command objects.")
 159
 160 (defvar gdb-prompting nil
 161   "True when gdb is idle with no pending input.")
 162
 163 (defvar gdb-output-sink nil
 164   "The disposition of the output of the current gdb command.
 165 Possible values are these symbols:
 166
 167     `user' -- gdb output should be copied to the GUD buffer
 168               for the user to see.
 169
 170     `inferior' -- gdb output should be copied to the inferior-io buffer.
 171
 172     `pre-emacs' -- output should be ignored util the post-prompt
 173                    annotation is received.  Then the output-sink
 174                    becomes:...
 175     `emacs' -- output should be collected in the partial-output-buffer
 176                for subsequent processing by a command.  This is the
 177                disposition of output generated by commands that
 178                gdb mode sends to gdb on its own behalf.
 179     `post-emacs' -- ignore output until the prompt annotation is
 180                     received, then go to USER disposition.
 181
 182 gdba (gdb-ui.el) uses all five values, gdbmi (gdb-mi.el) only two
 183 \(`user' and `emacs').")
 184
 185 (defvar gdb-current-item nil
 186   "The most recent command item sent to gdb.")
 187
 188 (defvar gdb-pending-triggers '()
 189   "A list of trigger functions that have run later than their output handlers.")
 190
 191 (defvar gdb-first-post-prompt nil)
 192 (defvar gdb-version nil)
 193 (defvar gdb-locals-font-lock-keywords nil)
 194 (defvar gdb-source-file-list nil
 195   "List of source files for the current executable.")
 196 (defconst gdb-error-regexp "\\^error,msg=\"\\(.+\\)\"")
 197
 198 (defvar gdb-locals-font-lock-keywords-1
 199   '(
 200     ;; var = (struct struct_tag) value
 201     ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +(\\(struct\\) \\(\\(\\sw\\|[_.]\\)+\\)"
 202       (1 font-lock-variable-name-face)
 203       (3 font-lock-keyword-face)
 204       (4 font-lock-type-face))
 205     ;; var = (type) value
 206     ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +(\\(\\(\\sw\\|[_.]\\)+\\)"
 207       (1 font-lock-variable-name-face)
 208       (3 font-lock-type-face))
 209     ;; var = val
 210     ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +[^(]"
 211       (1 font-lock-variable-name-face))
 212     )
 213   "Font lock keywords used in `gdb-local-mode'.")
 214
 215 (defvar gdb-locals-font-lock-keywords-2
 216   '(
 217     ;; var = type value
 218     ( "\\(^\\(\\sw\\|[_.]\\)+\\)\t+\\(\\(\\sw\\|[_.]\\)+\\)"
 219       (1 font-lock-variable-name-face)
 220       (3 font-lock-type-face))
 221     )
 222   "Font lock keywords used in `gdb-local-mode'.")
 223
 224 ;; Variables for GDB 6.4+
 225 (defvar gdb-register-names nil "List of register names.")
 226 (defvar gdb-changed-registers nil
 227   "List of changed register numbers (strings).")
 228
 229 ;;;###autoload
 230 (defun gdb (command-line)
 231   "Run gdb on program FILE in buffer *gud-FILE*.
 232 The directory containing FILE becomes the initial working
 233 directory and source-file directory for your debugger.
 234
 235 If `gdb-many-windows' is nil (the default value) then gdb just
 236 pops up the GUD buffer unless `gdb-show-main' is t.  In this case
 237 it starts with two windows: one displaying the GUD buffer and the
 238 other with the source file with the main routine of the inferior.
 239
 240 If `gdb-many-windows' is t, regardless of the value of
 241 `gdb-show-main', the layout below will appear unless
 242 `gdb-use-separate-io-buffer' is nil when the source buffer
 243 occupies the full width of the frame.  Keybindings are shown in
 244 some of the buffers.
 245
 246 Watch expressions appear in the speedbar/slowbar.
 247
 248 The following commands help control operation :
 249
 250 `gdb-many-windows'    - Toggle the number of windows gdb uses.
 251 `gdb-restore-windows' - To restore the window layout.
 252
 253 See Info node `(emacs)GDB Graphical Interface' for a more
 254 detailed description of this mode.
 255
 256
 257 +----------------------------------------------------------------------+
 258 |                               GDB Toolbar                            |
 259 +-----------------------------------+----------------------------------+
 260 | GUD buffer (I/O of GDB)           | Locals buffer                    |
 261 |                                   |                                  |
 262 |                                   |                                  |
 263 |                                   |                                  |
 264 +-----------------------------------+----------------------------------+
 265 | Source buffer                     | I/O buffer (of debugged program) |
 266 |                                   | (comint-mode)                    |
 267 |                                   |                                  |
 268 |                                   |                                  |
 269 |                                   |                                  |
 270 |                                   |                                  |
 271 |                                   |                                  |
 272 |                                   |                                  |
 273 +-----------------------------------+----------------------------------+
 274 | Stack buffer                      | Breakpoints buffer               |
 275 | RET      gdb-frames-select        | SPC    gdb-toggle-breakpoint     |
 276 |                                   | RET    gdb-goto-breakpoint       |
 277 |                                   | D      gdb-delete-breakpoint     |
 278 +-----------------------------------+----------------------------------+
 279
 280 To run GDB in text command mode, replace the GDB \"--annotate=3\"
 281 option with \"--fullname\" either in the minibuffer for the
 282 current Emacs session, or the custom variable
 283 `gud-gdb-command-name' for all future sessions.  You need to use
 284 text command mode to debug multiple programs within one Emacs
 285 session."
 286   (interactive (list (gud-query-cmdline 'gdb)))
 287
 288   (when (and gud-comint-buffer
 289            (buffer-name gud-comint-buffer)
 290            (get-buffer-process gud-comint-buffer)
 291            (with-current-buffer gud-comint-buffer (eq gud-minor-mode 'gdba)))
 292         (gdb-restore-windows)
 293         (error
 294          "Multiple debugging requires restarting in text command mode"))
 295
 296   (gud-common-init command-line nil 'gud-gdba-marker-filter)
 297   (set (make-local-variable 'gud-minor-mode) 'gdba)
 298   (setq comint-input-sender 'gdb-send)
 299
 300   (gud-def gud-break  "break %f:%l"  "\C-b" "Set breakpoint at current line.")
 301   (gud-def gud-tbreak "tbreak %f:%l" "\C-t"
 302            "Set temporary breakpoint at current line.")
 303   (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line.")
 304   (gud-def gud-step   "step %p"     "\C-s" "Step one source line with display.")
 305   (gud-def gud-stepi  "stepi %p"    "\C-i" "Step one instruction with display.")
 306   (gud-def gud-next   "next %p"     "\C-n" "Step one line (skip functions).")
 307   (gud-def gud-nexti  "nexti %p" nil   "Step one instruction (skip functions).")
 308   (gud-def gud-cont   "cont"     "\C-r" "Continue with display.")
 309   (gud-def gud-finish "finish"   "\C-f" "Finish executing current function.")
 310   (gud-def gud-jump
 311            (progn (gud-call "tbreak %f:%l") (gud-call "jump %f:%l"))
 312            "\C-j" "Set execution address to current line.")
 313
 314   (gud-def gud-up     "up %p"     "<" "Up N stack frames (numeric arg).")
 315   (gud-def gud-down   "down %p"   ">" "Down N stack frames (numeric arg).")
 316   (gud-def gud-print  "print %e"  "\C-p" "Evaluate C expression at point.")
 317   (gud-def gud-pstar  "print* %e" nil
 318            "Evaluate C dereferenced pointer expression at point.")
 319
 320   ;; For debugging Emacs only.
 321   (gud-def gud-pv "pv1 %e"      "\C-v" "Print the value of the lisp variable.")
 322
 323   (gud-def gud-until  "until %l" "\C-u" "Continue to current line.")
 324   (gud-def gud-run    "run"      nil    "Run the program.")
 325
 326   (local-set-key "\C-i" 'gud-gdb-complete-command)
 327   (setq comint-prompt-regexp "^(.*gdb[+]?) *")
 328   (setq paragraph-start comint-prompt-regexp)
 329   (setq gdb-output-sink 'user)
 330   (setq gdb-first-prompt t)
 331   (setq gud-running nil)
 332   (setq gdb-ready nil)
 333   (setq gdb-stack-update nil)
 334   (setq gdb-flush-pending-output nil)
 335   (setq gdb-early-user-input nil)
 336   (setq gud-filter-pending-text nil)
 337   (run-hooks 'gdb-mode-hook))
 338
 339 ;; Keep as an alias for compatibility with Emacs 22.1.
 340 ;;;###autoload
 341 (defalias 'gdba 'gdb)
 342
 343 (defgroup gdb nil
 344   "Gdb Graphical Mode options specifically for running Gdb in Emacs."
 345   :group 'processes
 346   :group 'tools)
 347
 348 (defcustom gdb-debug-log-max 128
 349   "Maximum size of `gdb-debug-log'.  If nil, size is unlimited."
 350   :group 'gdb
 351   :type '(choice (integer :tag "Number of elements")
 352                  (const   :tag "Unlimited" nil))
 353   :version "22.1")
 354
 355 (defvar gdb-debug-log nil
 356   "List of commands sent to and replies received from GDB.
 357 Most recent commands are listed first.  This list stores only the last
 358 `gdb-debug-log-max' values.  This variable is used to debug GDB-UI.")
 359
 360 ;;;###autoload
 361 (defcustom gdb-enable-debug nil
 362   "Non-nil means record the process input and output in `gdb-debug-log'."
 363   :type 'boolean
 364   :group 'gdb
 365   :version "22.1")
 366
 367 (defcustom gdb-cpp-define-alist-program "gcc -E -dM -"
 368   "Shell command for generating a list of defined macros in a source file.
 369 This list is used to display the #define directive associated
 370 with an identifier as a tooltip.  It works in a debug session with
 371 GDB, when `gud-tooltip-mode' is t.
 372
 373 Set `gdb-cpp-define-alist-flags' for any include paths or
 374 predefined macros."
 375   :type 'string
 376   :group 'gdb
 377   :version "22.1")
 378
 379 (defcustom gdb-cpp-define-alist-flags ""
 380   "Preprocessor flags for `gdb-cpp-define-alist-program'."
 381   :type 'string
 382   :group 'gdb
 383   :version "22.1")
 384
 385 (defcustom gdb-show-main nil
 386   "Non-nil means display source file containing the main routine at startup.
 387 Also display the main routine in the disassembly buffer if present."
 388   :type 'boolean
 389   :group 'gdb
 390   :version "22.1")
 391
 392 (defcustom gdb-many-windows nil
 393   "If nil, just pop up the GUD buffer unless `gdb-show-main' is t.
 394 In this case start with two windows: one displaying the GUD
 395 buffer and the other with the source file with the main routine
 396 of the debugged program.  Non-nil means display the layout shown
 397 for `gdba'."
 398   :type 'boolean
 399   :group 'gdb
 400   :version "22.1")
 401
 402 (defcustom gdb-use-separate-io-buffer nil
 403   "Non-nil means display output from the debugged program in a separate buffer."
 404   :type 'boolean
 405   :group 'gdb
 406   :version "22.1")
 407
 408 (defun gdb-force-mode-line-update (status)
 409   (let ((buffer gud-comint-buffer))
 410     (if (and buffer (buffer-name buffer))
 411         (with-current-buffer buffer
 412           (setq mode-line-process
 413                 (format ":%s [%s]"
 414                         (process-status (get-buffer-process buffer)) status))
 415           ;; Force mode line redisplay soon.
 416           (force-mode-line-update)))))
 417
 418 (defun gdb-many-windows (arg)
 419   "Toggle the number of windows in the basic arrangement.
 420 With prefix argument ARG, display additional buffers if ARG is positive,
 421 otherwise use a single window."
 422   (interactive "P")
 423   (setq gdb-many-windows
 424         (if (null arg)
 425             (not gdb-many-windows)
 426           (> (prefix-numeric-value arg) 0)))
 427   (message (format "Display of other windows %sabled"
 428                    (if gdb-many-windows "en" "dis")))
 429   (if (and gud-comint-buffer
 430            (buffer-name gud-comint-buffer))
 431       (condition-case nil
 432           (gdb-restore-windows)
 433         (error nil))))
 434
 435 (defun gdb-use-separate-io-buffer (arg)
 436   "Toggle separate IO for debugged program.
 437 With prefix argument ARG, use separate IO if ARG is positive,
 438 otherwise do not."
 439   (interactive "P")
 440   (setq gdb-use-separate-io-buffer
 441         (if (null arg)
 442             (not gdb-use-separate-io-buffer)
 443           (> (prefix-numeric-value arg) 0)))
 444   (message (format "Separate IO %sabled"
 445                    (if gdb-use-separate-io-buffer "en" "dis")))
 446   (if (and gud-comint-buffer
 447            (buffer-name gud-comint-buffer))
 448       (condition-case nil
 449           (if gdb-use-separate-io-buffer
 450               (if gdb-many-windows (gdb-restore-windows))
 451             (kill-buffer (gdb-inferior-io-name)))
 452         (error nil))))
 453
 454 (defvar gdb-define-alist nil "Alist of #define directives for GUD tooltips.")
 455
 456 (defun gdb-create-define-alist ()
 457   "Create an alist of #define directives for GUD tooltips."
 458   (let* ((file (buffer-file-name))
 459          (output
 460           (with-output-to-string
 461             (with-current-buffer standard-output
 462               (and file (file-exists-p file)
 463               (call-process shell-file-name file
 464                             (list t nil) nil "-c"
 465                             (concat gdb-cpp-define-alist-program " "
 466                                     gdb-cpp-define-alist-flags))))))
 467         (define-list (split-string output "\n" t)) (name))
 468     (setq gdb-define-alist nil)
 469     (dolist (define define-list)
 470       (setq name (nth 1 (split-string define "[( ]")))
 471       (push (cons name define) gdb-define-alist))))
 472
 473 (defun gdb-tooltip-print (expr)
 474   (tooltip-show
 475    (with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
 476      (goto-char (point-min))
 477      (let ((string
 478             (if (search-forward "=" nil t)
 479                 (concat expr (buffer-substring (- (point) 2) (point-max)))
 480               (buffer-string))))
 481        ;; remove newline for gud-tooltip-echo-area
 482        (substring string 0 (- (length string) 1))))
 483    (or gud-tooltip-echo-area tooltip-use-echo-area)))
 484
 485 ;; If expr is a macro for a function don't print because of possible dangerous
 486 ;; side-effects. Also printing a function within a tooltip generates an
 487 ;; unexpected starting annotation (phase error).
 488 (defun gdb-tooltip-print-1 (expr)
 489   (with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
 490     (goto-char (point-min))
 491     (if (search-forward "expands to: " nil t)
 492         (unless (looking-at "\\S-+.*(.*).*")
 493           (gdb-enqueue-input
 494            (list  (concat gdb-server-prefix "print " expr "\n")
 495                   `(lambda () (gdb-tooltip-print ,expr))))))))
 496
 497 (defconst gdb-source-file-regexp "\\(.+?\\), \\|\\([^, \n].*$\\)")
 498
 499 (defun gdb-set-gud-minor-mode-existing-buffers ()
 500   "Create list of source files for current GDB session."
 501   (goto-char (point-min))
 502   (when (search-forward "read in on demand:" nil t)
 503     (while (re-search-forward gdb-source-file-regexp nil t)
 504       (push (file-name-nondirectory (or (match-string 1) (match-string 2)))
 505             gdb-source-file-list))
 506     (dolist (buffer (buffer-list))
 507       (with-current-buffer buffer
 508         (when (and buffer-file-name
 509                    (member (file-name-nondirectory buffer-file-name)
 510                            gdb-source-file-list))
 511           (set (make-local-variable 'gud-minor-mode) 'gdba)
 512           (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
 513           (when gud-tooltip-mode
 514             (make-local-variable 'gdb-define-alist)
 515             (gdb-create-define-alist)
 516             (add-hook 'after-save-hook 'gdb-create-define-alist nil t))))))
 517   (gdb-force-mode-line-update
 518    (propertize "ready" 'face font-lock-variable-name-face)))
 519
 520 (defun gdb-find-watch-expression ()
 521   (let* ((var (nth (- (line-number-at-pos (point)) 2) gdb-var-list))
 522          (varnum (car var)) expr array)
 523     (string-match "\\(var[0-9]+\\)\\.\\(.*\\)" varnum)
 524     (let ((var1 (assoc (match-string 1 varnum) gdb-var-list)) var2 varnumlet
 525           (component-list (split-string (match-string 2 varnum) "\\." t)))
 526       (setq expr (nth 1 var1))
 527       (setq varnumlet (car var1))
 528       (dolist (component component-list)
 529         (setq var2 (assoc varnumlet gdb-var-list))
 530         (setq expr (concat expr
 531                            (if (string-match ".*\\[[0-9]+\\]$" (nth 3 var2))
 532                                (concat "[" component "]")
 533                              (concat "." component))))
 534         (setq varnumlet (concat varnumlet "." component)))
 535       expr)))
 536
 537 (defun gdb-init-1 ()
 538   (gud-def gud-break (if (not (string-match "Machine" mode-name))
 539                          (gud-call "break %f:%l" arg)
 540                        (save-excursion
 541                          (beginning-of-line)
 542                          (forward-char 2)
 543                          (gud-call "break *%a" arg)))
 544            "\C-b" "Set breakpoint at current line or address.")
 545   ;;
 546   (gud-def gud-remove (if (not (string-match "Machine" mode-name))
 547                           (gud-call "clear %f:%l" arg)
 548                         (save-excursion
 549                           (beginning-of-line)
 550                           (forward-char 2)
 551                           (gud-call "clear *%a" arg)))
 552            "\C-d" "Remove breakpoint at current line or address.")
 553   ;;
 554   (gud-def gud-until (if (not (string-match "Machine" mode-name))
 555                          (gud-call "until %f:%l" arg)
 556                        (save-excursion
 557                          (beginning-of-line)
 558                          (forward-char 2)
 559                          (gud-call "until *%a" arg)))
 560            "\C-u" "Continue to current line or address.")
 561   ;;
 562   (gud-def gud-go (gud-call (if gdb-active-process "continue" "run") arg)
 563            nil "Start or continue execution.")
 564
 565   ;; For debugging Emacs only.
 566   (gud-def gud-pp
 567            (gud-call
 568             (concat
 569              "pp1 " (if (eq (buffer-local-value
 570                              'major-mode (window-buffer)) 'speedbar-mode)
 571                         (gdb-find-watch-expression) "%e")) arg)
 572            nil   "Print the Emacs s-expression.")
 573
 574   (define-key gud-minor-mode-map [left-margin mouse-1]
 575     'gdb-mouse-set-clear-breakpoint)
 576   (define-key gud-minor-mode-map [left-fringe mouse-1]
 577     'gdb-mouse-set-clear-breakpoint)
 578    (define-key gud-minor-mode-map [left-margin C-mouse-1]
 579     'gdb-mouse-toggle-breakpoint-margin)
 580   (define-key gud-minor-mode-map [left-fringe C-mouse-1]
 581     'gdb-mouse-toggle-breakpoint-fringe)
 582
 583   (define-key gud-minor-mode-map [left-margin drag-mouse-1]
 584     'gdb-mouse-until)
 585   (define-key gud-minor-mode-map [left-fringe drag-mouse-1]
 586     'gdb-mouse-until)
 587   (define-key gud-minor-mode-map [left-margin mouse-3]
 588     'gdb-mouse-until)
 589   (define-key gud-minor-mode-map [left-fringe mouse-3]
 590     'gdb-mouse-until)
 591
 592   (define-key gud-minor-mode-map [left-margin C-drag-mouse-1]
 593     'gdb-mouse-jump)
 594   (define-key gud-minor-mode-map [left-fringe C-drag-mouse-1]
 595     'gdb-mouse-jump)
 596   (define-key gud-minor-mode-map [left-fringe C-mouse-3]
 597     'gdb-mouse-jump)
 598   (define-key gud-minor-mode-map [left-margin C-mouse-3]
 599     'gdb-mouse-jump)
 600
 601   ;; (re-)initialize
 602   (setq gdb-pc-address (if gdb-show-main "main" nil))
 603   (setq gdb-previous-frame-address nil
 604         gdb-memory-address "main"
 605         gdb-previous-frame nil
 606         gdb-selected-frame nil
 607         gdb-current-language nil
 608         gdb-frame-number nil
 609         gdb-var-list nil
 610         gdb-main-file nil
 611         gdb-first-post-prompt t
 612         gdb-prompting nil
 613         gdb-input-queue nil
 614         gdb-current-item nil
 615         gdb-pending-triggers nil
 616         gdb-output-sink 'user
 617         gdb-server-prefix "server "
 618         gdb-location-alist nil
 619         gdb-source-file-list nil
 620         gdb-error nil
 621         gdb-macro-info nil
 622         gdb-buffer-fringe-width (car (window-fringes))
 623         gdb-debug-log nil
 624         gdb-signalled nil
 625         gdb-source-window nil
 626         gdb-inferior-status nil
 627         gdb-continuation nil
 628         gdb-look-up-stack nil
 629         gdb-frame-begin nil
 630         gdb-printing t
 631         gud-old-arrow nil
 632         gdb-thread-indicator nil)
 633
 634   (setq gdb-buffer-type 'gdba)
 635
 636   (if gdb-use-separate-io-buffer (gdb-clear-inferior-io))
 637
 638   ;; Hack to see test for GDB 6.4+ (-stack-info-frame was implemented in 6.4)
 639   (gdb-enqueue-input (list "server interpreter mi -stack-info-frame\n"
 640                            'gdb-get-version)))
 641
 642 (defun gdb-init-2 ()
 643   (if (eq window-system 'w32)
 644       (gdb-enqueue-input (list "set new-console off\n" 'ignore)))
 645   (gdb-enqueue-input (list "set height 0\n" 'ignore))
 646   (gdb-enqueue-input (list "set width 0\n" 'ignore))
 647
 648   (if (string-equal gdb-version "pre-6.4")
 649       (progn
 650         (gdb-enqueue-input (list (concat gdb-server-prefix "info sources\n")
 651                                  'gdb-set-gud-minor-mode-existing-buffers))
 652         (setq gdb-locals-font-lock-keywords gdb-locals-font-lock-keywords-1))
 653     (gdb-enqueue-input
 654      (list "server interpreter mi -data-list-register-names\n"
 655          'gdb-get-register-names))
 656     ; Needs GDB 6.2 onwards.
 657     (gdb-enqueue-input
 658      (list "server interpreter mi \"-file-list-exec-source-files\"\n"
 659            'gdb-set-gud-minor-mode-existing-buffers-1))
 660     (setq gdb-locals-font-lock-keywords gdb-locals-font-lock-keywords-2))
 661
 662   ;; Find source file and compilation directory here.
 663   ;; Works for C, C++, Fortran and Ada but not Java (GDB 6.4)
 664   (gdb-enqueue-input (list "server list\n" 'ignore))
 665   (gdb-enqueue-input (list "server info source\n" 'gdb-source-info))
 666
 667   (run-hooks 'gdb-mode-hook))
 668
 669 (defun gdb-get-version ()
 670   (goto-char (point-min))
 671   (if (re-search-forward "Undefined\\( mi\\)* command:" nil t)
 672       (setq gdb-version "pre-6.4")
 673     (setq gdb-version "6.4+"))
 674   (gdb-init-2))
 675
 676 (defmacro gdb-if-arrow (arrow-position &rest body)
 677   `(if ,arrow-position
 678       (let ((buffer (marker-buffer ,arrow-position)) (line))
 679         (if (equal buffer (window-buffer (posn-window end)))
 680             (with-current-buffer buffer
 681               (when (or (equal start end)
 682                         (equal (posn-point start)
 683                                (marker-position ,arrow-position)))
 684                 ,@body))))))
 685
 686 (defun gdb-mouse-until (event)
 687   "Continue running until a source line past the current line.
 688 The destination source line can be selected either by clicking
 689 with mouse-3 on the fringe/margin or dragging the arrow
 690 with mouse-1 (default bindings)."
 691   (interactive "e")
 692   (let ((start (event-start event))
 693         (end (event-end event)))
 694     (gdb-if-arrow gud-overlay-arrow-position
 695                   (setq line (line-number-at-pos (posn-point end)))
 696                   (gud-call (concat "until " (number-to-string line))))
 697     (gdb-if-arrow gdb-overlay-arrow-position
 698                   (save-excursion
 699                     (goto-line (line-number-at-pos (posn-point end)))
 700                     (forward-char 2)
 701                     (gud-call (concat "until *%a"))))))
 702
 703 (defun gdb-mouse-jump (event)
 704   "Set execution address/line.
 705 The destination source line can be selected either by clicking with C-mouse-3
 706 on the fringe/margin or dragging the arrow with C-mouse-1 (default bindings).
 707 Unlike `gdb-mouse-until' the destination address can be before the current
 708 line, and no execution takes place."
 709   (interactive "e")
 710   (let ((start (event-start event))
 711         (end (event-end event)))
 712     (gdb-if-arrow gud-overlay-arrow-position
 713                   (setq line (line-number-at-pos (posn-point end)))
 714                   (progn
 715                     (gud-call (concat "tbreak " (number-to-string line)))
 716                     (gud-call (concat "jump " (number-to-string line)))))
 717     (gdb-if-arrow gdb-overlay-arrow-position
 718                   (save-excursion
 719                     (goto-line (line-number-at-pos (posn-point end)))
 720                     (forward-char 2)
 721                     (progn
 722                       (gud-call (concat "tbreak *%a"))
 723                       (gud-call (concat "jump *%a")))))))
 724
 725 (defcustom gdb-speedbar-auto-raise nil
 726   "If non-nil raise speedbar every time display of watch expressions is\
 727  updated."
 728   :type 'boolean
 729   :group 'gdb
 730   :version "22.1")
 731
 732 (defun gdb-speedbar-auto-raise (arg)
 733   "Toggle automatic raising of the speedbar for watch expressions.
 734 With prefix argument ARG, automatically raise speedbar if ARG is
 735 positive, otherwise don't automatically raise it."
 736   (interactive "P")
 737   (setq gdb-speedbar-auto-raise
 738         (if (null arg)
 739             (not gdb-speedbar-auto-raise)
 740           (> (prefix-numeric-value arg) 0)))
 741   (message (format "Auto raising %sabled"
 742                    (if gdb-speedbar-auto-raise "en" "dis"))))
 743
 744 (defcustom gdb-use-colon-colon-notation nil
 745   "If non-nil use FUN::VAR format to display variables in the speedbar."
 746   :type 'boolean
 747   :group 'gdb
 748   :version "22.1")
 749
 750 (define-key gud-minor-mode-map "\C-c\C-w" 'gud-watch)
 751 (define-key global-map (concat gud-key-prefix "\C-w") 'gud-watch)
 752
 753 (defun gud-watch (&optional arg event)
 754   "Watch expression at point.
 755 With arg, enter name of variable to be watched in the minibuffer."
 756   (interactive (list current-prefix-arg last-input-event))
 757   (let ((minor-mode (buffer-local-value 'gud-minor-mode gud-comint-buffer)))
 758     (if (memq minor-mode '(gdbmi gdba))
 759         (progn
 760           (if event (posn-set-point (event-end event)))
 761           (require 'tooltip)
 762           (save-selected-window
 763             (let ((expr
 764                    (if arg
 765                        (completing-read "Name of variable: "
 766                                         'gud-gdb-complete-command)
 767                      (if (and transient-mark-mode mark-active)
 768                          (buffer-substring (region-beginning) (region-end))
 769                        (tooltip-identifier-from-point (point))))))
 770               (speedbar 1)
 771                 (set-text-properties 0 (length expr) nil expr)
 772                 (gdb-enqueue-input
 773                  (list
 774                   (if (eq minor-mode 'gdba)
 775                       (concat
 776                        "server interpreter mi \"-var-create - * "  expr "\"\n")
 777                     (concat"-var-create - * "  expr "\n"))
 778                   `(lambda () (gdb-var-create-handler ,expr)))))))
 779       (message "gud-watch is a no-op in this mode."))))
 780
 781 (defconst gdb-var-create-regexp
 782   "name=\"\\(.*?\\)\",.*numchild=\"\\(.*?\\)\",\\(?:.*value=\\(\".*\"\\),\\)?.*type=\"\\(.*?\\)\"")
 783
 784 (defun gdb-var-create-handler (expr)
 785   (goto-char (point-min))
 786   (if (re-search-forward gdb-var-create-regexp nil t)
 787       (let ((var (list
 788                   (match-string 1)
 789                   (if (and (string-equal gdb-current-language "c")
 790                            gdb-use-colon-colon-notation gdb-selected-frame)
 791                       (setq expr (concat gdb-selected-frame "::" expr))
 792                     expr)
 793                   (match-string 2)
 794                   (match-string 4)
 795                   (if (match-string 3) (read (match-string 3)))
 796                   nil gdb-frame-address)))
 797         (push var gdb-var-list)
 798         (unless (string-equal
 799                  speedbar-initial-expansion-list-name "GUD")
 800           (speedbar-change-initial-expansion-list "GUD"))
 801         (unless (nth 4 var)
 802           (gdb-enqueue-input
 803            (list
 804             (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
 805                     'gdba)
 806                 (concat "server interpreter mi \"0-var-evaluate-expression "
 807                         (car var) "\"\n")
 808               (concat "0-var-evaluate-expression " (car var) "\n"))
 809               `(lambda () (gdb-var-evaluate-expression-handler
 810                            ,(car var) nil))))))
 811     (if (search-forward "Undefined command" nil t)
 812         (message-box "Watching expressions requires GDB 6.0 onwards")
 813       (message-box "No symbol \"%s\" in current context." expr))))
 814
 815 (defun gdb-speedbar-update ()
 816   (when (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame)
 817              (not (member 'gdb-speedbar-timer gdb-pending-triggers)))
 818     ;; Dummy command to update speedbar even when idle.
 819     (gdb-enqueue-input (list "server pwd\n" 'gdb-speedbar-timer-fn))
 820     ;; Keep gdb-pending-triggers non-nil till end.
 821     (push 'gdb-speedbar-timer gdb-pending-triggers)))
 822
 823 (defun gdb-speedbar-timer-fn ()
 824   (setq gdb-pending-triggers
 825         (delq 'gdb-speedbar-timer gdb-pending-triggers))
 826   (speedbar-timer-fn))
 827
 828 (defun gdb-var-evaluate-expression-handler (varnum changed)
 829   (goto-char (point-min))
 830   (re-search-forward "\\(.+\\)\\^done,value=\\(\".*\"\\)" nil t)
 831   (setq gdb-pending-triggers
 832         (delq (string-to-number (match-string 1)) gdb-pending-triggers))
 833   (let ((var (assoc varnum gdb-var-list)))
 834     (when var
 835       (if changed (setcar (nthcdr 5 var) 'changed))
 836       (setcar (nthcdr 4 var) (read (match-string 2)))))
 837   (gdb-speedbar-update))
 838
 839 (defun gdb-var-list-children (varnum)
 840   (gdb-enqueue-input
 841    (list (concat "server interpreter mi \"-var-list-children " varnum "\"\n")
 842          `(lambda () (gdb-var-list-children-handler ,varnum)))))
 843
 844 (defconst gdb-var-list-children-regexp
 845   "child={.*?name=\"\\(.*?\\)\",.*?exp=\"\\(.*?\\)\",.*?\
 846 numchild=\"\\(.*?\\)\"\\(}\\|,.*?\\(type=\"\\(.*?\\)\"\\)?.*?}\\)")
 847
 848 (defun gdb-var-list-children-handler (varnum)
 849   (goto-char (point-min))
 850   (let ((var-list nil))
 851     (catch 'child-already-watched
 852       (dolist (var gdb-var-list)
 853         (if (string-equal varnum (car var))
 854             (progn
 855               (push var var-list)
 856               (while (re-search-forward gdb-var-list-children-regexp nil t)
 857                 (let ((varchild (list (match-string 1)
 858                                       (match-string 2)
 859                                       (match-string 3)
 860                                       (match-string 6)
 861                                       nil nil)))
 862                   (if (assoc (car varchild) gdb-var-list)
 863                       (throw 'child-already-watched nil))
 864                   (push varchild var-list)
 865                   (gdb-enqueue-input
 866                    (list
 867                     (concat
 868                      "server interpreter mi \"0-var-evaluate-expression "
 869                      (car varchild) "\"\n")
 870                     `(lambda () (gdb-var-evaluate-expression-handler
 871                                  ,(car varchild) nil)))))))
 872           (push var var-list)))
 873       (setq gdb-var-list (nreverse var-list)))))
 874
 875 (defun gdb-var-update ()
 876   (when (not (member 'gdb-var-update gdb-pending-triggers))
 877     (gdb-enqueue-input
 878      (list "server interpreter mi \"-var-update *\"\n"
 879            'gdb-var-update-handler))
 880     (push 'gdb-var-update gdb-pending-triggers)))
 881
 882 (defconst gdb-var-update-regexp
 883   "{.*?name=\"\\(.*?\\)\",.*?in_scope=\"\\(.*?\\)\",.*?\
 884 type_changed=\".*?\".*?}")
 885
 886 (defun gdb-var-update-handler ()
 887   (dolist (var gdb-var-list)
 888     (setcar (nthcdr 5 var) nil))
 889   (goto-char (point-min))
 890   (let ((n 0))
 891     (while (re-search-forward gdb-var-update-regexp nil t)
 892       (let ((varnum (match-string 1)))
 893         (if  (string-equal (match-string 2) "false")
 894             (let ((var (assoc varnum gdb-var-list)))
 895               (if var (setcar (nthcdr 5 var) 'out-of-scope)))
 896           (setq n (1+ n))
 897           (push n gdb-pending-triggers)
 898           (gdb-enqueue-input
 899            (list
 900             (concat "server interpreter mi \"" (number-to-string n)
 901                     "-var-evaluate-expression " varnum "\"\n")
 902           `(lambda () (gdb-var-evaluate-expression-handler ,varnum t))))))))
 903   (setq gdb-pending-triggers
 904         (delq 'gdb-var-update gdb-pending-triggers)))
 905
 906 (defun gdb-var-set-format (format)
 907   "Set the output format for a variable displayed in the speedbar."
 908   (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
 909          (varnum (car var)))
 910     (gdb-enqueue-input
 911      (list
 912       (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
 913           (concat "server interpreter mi \"-var-set-format "
 914                   varnum " " format "\"\n")
 915         (concat "-var-set-format " varnum " " format "\n"))
 916            `(lambda () (gdb-var-set-format-handler ,varnum))))))
 917
 918 (defconst gdb-var-set-format-regexp
 919   "format=\"\\(.*?\\)\",.*value=\"\\(.*?\\)\"")
 920
 921 (defun gdb-var-set-format-handler (varnum)
 922   (goto-char (point-min))
 923   (if (re-search-forward gdb-var-set-format-regexp nil t)
 924       (let ((var (assoc varnum gdb-var-list)))
 925         (setcar (nthcdr 4 var) (match-string 2))
 926         (gdb-var-update-1))))
 927
 928 (defun gdb-var-delete-1 (varnum)
 929   (gdb-enqueue-input
 930    (list
 931     (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
 932         (concat "server interpreter mi \"-var-delete " varnum "\"\n")
 933       (concat "-var-delete " varnum "\n"))
 934     'ignore))
 935   (setq gdb-var-list (delq var gdb-var-list))
 936   (dolist (varchild gdb-var-list)
 937     (if (string-match (concat (car var) "\\.") (car varchild))
 938         (setq gdb-var-list (delq varchild gdb-var-list)))))
 939
 940 (defun gdb-var-delete ()
 941   "Delete watch expression at point from the speedbar."
 942   (interactive)
 943   (if (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
 944             '(gdbmi gdba))
 945       (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
 946              (varnum (car var)))
 947         (if (string-match "\\." (car var))
 948             (message-box "Can only delete a root expression")
 949           (gdb-var-delete-1 varnum)))))
 950
 951 (defun gdb-var-delete-children (varnum)
 952   "Delete children of variable object at point from the speedbar."
 953   (gdb-enqueue-input
 954    (list
 955     (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
 956         (concat "server interpreter mi \"-var-delete -c " varnum "\"\n")
 957       (concat "-var-delete -c " varnum "\n")) 'ignore)))
 958
 959 (defun gdb-edit-value (text token indent)
 960   "Assign a value to a variable displayed in the speedbar."
 961   (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
 962          (varnum (car var)) (value))
 963     (setq value (read-string "New value: "))
 964     (gdb-enqueue-input
 965      (list
 966       (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
 967           (concat "server interpreter mi \"-var-assign "
 968                   varnum " " value "\"\n")
 969         (concat "-var-assign " varnum " " value "\n"))
 970            `(lambda () (gdb-edit-value-handler ,value))))))
 971
 972 (defun gdb-edit-value-handler (value)
 973   (goto-char (point-min))
 974   (if (re-search-forward gdb-error-regexp nil t)
 975       (message-box "Invalid number or expression (%s)" value)))
 976
 977 (defcustom gdb-show-changed-values t
 978   "If non-nil change the face of out of scope variables and changed values.
 979 Out of scope variables are suppressed with `shadow' face.
 980 Changed values are highlighted with the face `font-lock-warning-face'."
 981   :type 'boolean
 982   :group 'gdb
 983   :version "22.1")
 984
 985 (defcustom gdb-max-children 40
 986   "Maximum number of children before expansion requires confirmation."
 987   :type 'integer
 988   :group 'gdb
 989   :version "22.1")
 990
 991 (defcustom gdb-delete-out-of-scope t
 992   "If non-nil delete watch expressions automatically when they go out of scope."
 993   :type 'boolean
 994   :group 'gdb
 995   :version "22.2")
 996
 997 (defun gdb-speedbar-expand-node (text token indent)
 998   "Expand the node the user clicked on.
 999 TEXT is the text of the button we clicked on, a + or - item.
1000 TOKEN is data related to this node.
1001 INDENT is the current indentation depth."
1002   (if (and gud-comint-buffer (buffer-name gud-comint-buffer))
1003       (progn
1004         (cond ((string-match "+" text)  ;expand this node
1005                (let* ((var (assoc token gdb-var-list))
1006                       (expr (nth 1 var)) (children (nth 2 var)))
1007                  (if (or (<= (string-to-number children) gdb-max-children)
1008                           (y-or-n-p
1009                            (format
1010                             "%s has %s children. Continue? " expr children)))
1011                      (if (and (eq (buffer-local-value
1012                                    'gud-minor-mode gud-comint-buffer) 'gdba)
1013                               (string-equal gdb-version "pre-6.4"))
1014                          (gdb-var-list-children token)
1015                        (gdb-var-list-children-1 token)))))
1016               ((string-match "-" text)  ;contract this node
1017                (dolist (var gdb-var-list)
1018                  (if (string-match (concat token "\\.") (car var))
1019                      (setq gdb-var-list (delq var gdb-var-list))))
1020                (gdb-var-delete-children token)
1021                (speedbar-change-expand-button-char ?+)
1022                (speedbar-delete-subblock indent))
1023               (t (error "Ooops...  not sure what to do")))
1024         (speedbar-center-buffer-smartly))
1025     (message-box "GUD session has been killed")))
1026
1027 (defun gdb-get-target-string ()
1028   (with-current-buffer gud-comint-buffer
1029     gud-target-name))
1030 \f
1031
1032 ;;
1033 ;; gdb buffers.
1034 ;;
1035 ;; Each buffer has a TYPE -- a symbol that identifies the function
1036 ;; of that particular buffer.
1037 ;;
1038 ;; The usual gdb interaction buffer is given the type `gdba' and
1039 ;; is constructed specially.
1040 ;;
1041 ;; Others are constructed by gdb-get-buffer-create and
1042 ;; named according to the rules set forth in the gdb-buffer-rules-assoc
1043
1044 (defvar gdb-buffer-rules-assoc '())
1045
1046 (defun gdb-get-buffer (key)
1047   "Return the gdb buffer tagged with type KEY.
1048 The key should be one of the cars in `gdb-buffer-rules-assoc'."
1049   (save-excursion
1050     (gdb-look-for-tagged-buffer key (buffer-list))))
1051
1052 (defun gdb-get-buffer-create (key)
1053   "Create a new gdb buffer of the type specified by KEY.
1054 The key should be one of the cars in `gdb-buffer-rules-assoc'."
1055   (or (gdb-get-buffer key)
1056       (let* ((rules (assoc key gdb-buffer-rules-assoc))
1057              (name (funcall (gdb-rules-name-maker rules)))
1058              (new (get-buffer-create name)))
1059         (with-current-buffer new
1060           (let ((trigger))
1061             (if (cdr (cdr rules))
1062                 (setq trigger (funcall (car (cdr (cdr rules))))))
1063             (setq gdb-buffer-type key)
1064             (set (make-local-variable 'gud-minor-mode)
1065                  (buffer-local-value 'gud-minor-mode gud-comint-buffer))
1066             (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
1067             (if trigger (funcall trigger)))
1068           new))))
1069
1070 (defun gdb-rules-name-maker (rules) (car (cdr rules)))
1071
1072 (defun gdb-look-for-tagged-buffer (key bufs)
1073   (let ((retval nil))
1074     (while (and (not retval) bufs)
1075       (set-buffer (car bufs))
1076       (if (eq gdb-buffer-type key)
1077           (setq retval (car bufs)))
1078       (setq bufs (cdr bufs)))
1079     retval))
1080
1081 ;;
1082 ;; This assoc maps buffer type symbols to rules.  Each rule is a list of
1083 ;; at least one and possible more functions.  The functions have these
1084 ;; roles in defining a buffer type:
1085 ;;
1086 ;;     NAME - Return a name for this  buffer type.
1087 ;;
1088 ;; The remaining function(s) are optional:
1089 ;;
1090 ;;     MODE - called in a new buffer with no arguments, should establish
1091 ;;            the proper mode for the buffer.
1092 ;;
1093
1094 (defun gdb-set-buffer-rules (buffer-type &rest rules)
1095   (let ((binding (assoc buffer-type gdb-buffer-rules-assoc)))
1096     (if binding
1097         (setcdr binding rules)
1098       (push (cons buffer-type rules)
1099             gdb-buffer-rules-assoc))))
1100
1101 ;; GUD buffers are an exception to the rules
1102 (gdb-set-buffer-rules 'gdba 'error)
1103
1104 ;; Partial-output buffer : This accumulates output from a command executed on
1105 ;; behalf of emacs (rather than the user).
1106 ;;
1107 (gdb-set-buffer-rules 'gdb-partial-output-buffer
1108                       'gdb-partial-output-name)
1109
1110 (defun gdb-partial-output-name ()
1111   (concat " *partial-output-"
1112           (gdb-get-target-string)
1113           "*"))
1114
1115 \f
1116 (gdb-set-buffer-rules 'gdb-inferior-io
1117                       'gdb-inferior-io-name
1118                       'gdb-inferior-io-mode)
1119
1120 (defun gdb-inferior-io-name ()
1121   (concat "*input/output of "
1122           (gdb-get-target-string)
1123           "*"))
1124
1125 (defun gdb-display-separate-io-buffer ()
1126   "Display IO of debugged program in a separate window."
1127   (interactive)
1128   (if gdb-use-separate-io-buffer
1129       (gdb-display-buffer
1130        (gdb-get-buffer-create 'gdb-inferior-io) t)))
1131
1132 (defconst gdb-frame-parameters
1133   '((height . 14) (width . 80)
1134     (unsplittable . t)
1135     (tool-bar-lines . nil)
1136     (menu-bar-lines . nil)
1137     (minibuffer . nil)))
1138
1139 (defun gdb-frame-separate-io-buffer ()
1140   "Display IO of debugged program in a new frame."
1141   (interactive)
1142   (if gdb-use-separate-io-buffer
1143       (let ((special-display-regexps (append special-display-regexps '(".*")))
1144             (special-display-frame-alist gdb-frame-parameters))
1145         (display-buffer (gdb-get-buffer-create 'gdb-inferior-io)))))
1146
1147 (defvar gdb-inferior-io-mode-map
1148   (let ((map (make-sparse-keymap)))
1149     (define-key map "\C-c\C-c" 'gdb-separate-io-interrupt)
1150     (define-key map "\C-c\C-z" 'gdb-separate-io-stop)
1151     (define-key map "\C-c\C-\\" 'gdb-separate-io-quit)
1152     (define-key map "\C-c\C-d" 'gdb-separate-io-eof)
1153     (define-key map "\C-d" 'gdb-separate-io-eof)
1154     map))
1155
1156 (define-derived-mode gdb-inferior-io-mode comint-mode "Inferior I/O"
1157   "Major mode for gdb inferior-io."
1158   :syntax-table nil :abbrev-table nil
1159   ;; We want to use comint because it has various nifty and familiar
1160   ;; features.  We don't need a process, but comint wants one, so create
1161   ;; a dummy one.
1162   (make-comint-in-buffer
1163    (substring (buffer-name) 1 (- (length (buffer-name)) 1))
1164    (current-buffer) "hexl")
1165   (setq comint-input-sender 'gdb-inferior-io-sender))
1166
1167 (defun gdb-inferior-io-sender (proc string)
1168   ;; PROC is the pseudo-process created to satisfy comint.
1169   (with-current-buffer (process-buffer proc)
1170     (setq proc (get-buffer-process gud-comint-buffer))
1171     (process-send-string proc string)
1172     (process-send-string proc "\n")))
1173
1174 (defun gdb-separate-io-interrupt ()
1175   "Interrupt the program being debugged."
1176   (interactive)
1177   (interrupt-process
1178    (get-buffer-process gud-comint-buffer) comint-ptyp))
1179
1180 (defun gdb-separate-io-quit ()
1181   "Send quit signal to the program being debugged."
1182   (interactive)
1183   (quit-process
1184    (get-buffer-process gud-comint-buffer) comint-ptyp))
1185
1186 (defun gdb-separate-io-stop ()
1187   "Stop the program being debugged."
1188   (interactive)
1189   (stop-process
1190    (get-buffer-process gud-comint-buffer) comint-ptyp))
1191
1192 (defun gdb-separate-io-eof ()
1193   "Send end-of-file to the program being debugged."
1194   (interactive)
1195   (process-send-eof
1196    (get-buffer-process gud-comint-buffer)))
1197 \f
1198
1199 ;; gdb communications
1200 ;;
1201
1202 ;; INPUT: things sent to gdb
1203 ;;
1204 ;; The queues are lists.  Each element is either a string (indicating user or
1205 ;; user-like input) or a list of the form:
1206 ;;
1207 ;;    (INPUT-STRING  HANDLER-FN)
1208 ;;
1209 ;; The handler function will be called from the partial-output buffer when the
1210 ;; command completes.  This is the way to write commands which invoke gdb
1211 ;; commands autonomously.
1212 ;;
1213 ;; These lists are consumed tail first.
1214 ;;
1215
1216 (defun gdb-send (proc string)
1217   "A comint send filter for gdb.
1218 This filter may simply queue input for a later time."
1219   (if gdb-ready
1220       (progn
1221         (with-current-buffer gud-comint-buffer
1222           (let ((inhibit-read-only t))
1223             (remove-text-properties (point-min) (point-max) '(face))))
1224         (if gud-running
1225             (progn
1226               (let ((item (concat string "\n")))
1227                 (if gdb-enable-debug (push (cons 'send item) gdb-debug-log))
1228                 (process-send-string proc item)))
1229           (if (string-match "\\\\\\'" string)
1230               (setq gdb-continuation (concat gdb-continuation string "\n"))
1231             (let ((item (concat
1232                          gdb-continuation string
1233                          (if (not comint-input-sender-no-newline) "\n"))))
1234               (gdb-enqueue-input item)
1235               (setq gdb-continuation nil)))))
1236     (push (concat string "\n")  gdb-early-user-input)))
1237
1238 ;; Note: Stuff enqueued here will be sent to the next prompt, even if it
1239 ;; is a query, or other non-top-level prompt.
1240
1241 (defun gdb-enqueue-input (item)
1242   (if (not gud-running)
1243       (if gdb-prompting
1244           (progn
1245             (gdb-send-item item)
1246             (setq gdb-prompting nil))
1247         (push item gdb-input-queue))))
1248
1249 (defun gdb-dequeue-input ()
1250   (let ((queue gdb-input-queue))
1251     (if queue
1252         (let ((last (car (last queue))))
1253           (unless (nbutlast queue) (setq gdb-input-queue '()))
1254           last)
1255       ;; This should be nil here anyway but set it just to make sure.
1256       (setq gdb-pending-triggers nil))))
1257
1258 (defun gdb-send-item (item)
1259   (setq gdb-flush-pending-output nil)
1260   (if gdb-enable-debug (push (cons 'send-item item) gdb-debug-log))
1261   (setq gdb-current-item item)
1262   (let ((process (get-buffer-process gud-comint-buffer)))
1263     (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
1264         (if (stringp item)
1265             (progn
1266               (setq gdb-output-sink 'user)
1267               (process-send-string process item))
1268           (progn
1269             (gdb-clear-partial-output)
1270             (setq gdb-output-sink 'pre-emacs)
1271             (process-send-string process
1272                                  (car item))))
1273       ;; case: eq gud-minor-mode 'gdbmi
1274       (gdb-clear-partial-output)
1275       (setq gdb-output-sink 'emacs)
1276       (process-send-string process (car item)))))
1277 \f
1278 ;;
1279 ;; output -- things gdb prints to emacs
1280 ;;
1281 ;; GDB output is a stream interrupted by annotations.
1282 ;; Annotations can be recognized by their beginning
1283 ;; with \C-j\C-z\C-z<tag><opt>\C-j
1284 ;;
1285 ;; The tag is a string obeying symbol syntax.
1286 ;;
1287 ;; The optional part `<opt>' can be either the empty string
1288 ;; or a space followed by more data relating to the annotation.
1289 ;; For example, the SOURCE annotation is followed by a filename,
1290 ;; line number and various useless goo.  This data must not include
1291 ;; any newlines.
1292 ;;
1293
1294 (defcustom gud-gdb-command-name "gdb --annotate=3"
1295   "Default command to execute an executable under the GDB debugger.
1296 The option \"--annotate=3\" must be included in this value if you
1297 want the GDB Graphical Interface."
1298   :type 'string
1299   :group 'gud
1300   :version "22.1")
1301
1302 (defvar gdb-annotation-rules
1303   '(("pre-prompt" gdb-pre-prompt)
1304     ("prompt" gdb-prompt)
1305     ("commands" gdb-subprompt)
1306     ("overload-choice" gdb-subprompt)
1307     ("query" gdb-subprompt)
1308     ;; Need this prompt for GDB 6.1
1309     ("nquery" gdb-subprompt)
1310     ("prompt-for-continue" gdb-subprompt)
1311     ("post-prompt" gdb-post-prompt)
1312     ("source" gdb-source)
1313     ("starting" gdb-starting)
1314     ("exited" gdb-exited)
1315     ("signalled" gdb-signalled)
1316     ("signal" gdb-signal)
1317     ("breakpoint" gdb-stopping)
1318     ("watchpoint" gdb-stopping)
1319     ("frame-begin" gdb-frame-begin)
1320     ("stopped" gdb-stopped)
1321     ("error-begin" gdb-error)
1322     ("error" gdb-error)
1323     ("new-thread" (lambda (ignored) (gdb-get-buffer-create 'gdb-threads-buffer))))
1324   "An assoc mapping annotation tags to functions which process them.")
1325
1326 (defun gdb-resync()
1327   (setq gdb-flush-pending-output t)
1328   (setq gud-running nil)
1329   (gdb-force-mode-line-update
1330    (propertize "stopped" 'face font-lock-warning-face))
1331   (setq gdb-output-sink 'user)
1332   (setq gdb-input-queue nil)
1333   (setq gdb-pending-triggers nil)
1334   (setq gdb-prompting t))
1335
1336 (defconst gdb-source-spec-regexp
1337   "\\(.*\\):\\([0-9]*\\):[0-9]*:[a-z]*:0x0*\\([a-f0-9]*\\)")
1338
1339 ;; Do not use this except as an annotation handler.
1340 (defun gdb-source (args)
1341   (string-match gdb-source-spec-regexp args)
1342   ;; Extract the frame position from the marker.
1343   (setq gud-last-frame
1344         (cons
1345          (match-string 1 args)
1346          (string-to-number (match-string 2 args))))
1347   (setq gdb-pc-address (match-string 3 args))
1348   ;; cover for auto-display output which comes *before*
1349   ;; stopped annotation
1350   (if (eq gdb-output-sink 'inferior) (setq gdb-output-sink 'user)))
1351
1352 (defun gdb-pre-prompt (ignored)
1353   "An annotation handler for `pre-prompt'.
1354 This terminates the collection of output from a previous command if that
1355 happens to be in effect."
1356   (setq gdb-error nil)
1357   (let ((sink gdb-output-sink))
1358     (cond
1359      ((eq sink 'user) t)
1360      ((eq sink 'emacs)
1361       (setq gdb-output-sink 'post-emacs))
1362      (t
1363       (gdb-resync)
1364       (error "Phase error in gdb-pre-prompt (got %s)" sink)))))
1365
1366 (defun gdb-prompt (ignored)
1367   "An annotation handler for `prompt'.
1368 This sends the next command (if any) to gdb."
1369   (when gdb-first-prompt
1370     (gdb-force-mode-line-update
1371      (propertize "initializing..." 'face font-lock-variable-name-face))
1372     (gdb-init-1)
1373     (setq gdb-first-prompt nil))
1374   (let ((sink gdb-output-sink))
1375     (cond
1376      ((eq sink 'user) t)
1377      ((eq sink 'post-emacs)
1378       (setq gdb-output-sink 'user)
1379       (let ((handler
1380              (car (cdr gdb-current-item))))
1381         (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
1382           (funcall handler))))
1383      (t
1384       (gdb-resync)
1385       (error "Phase error in gdb-prompt (got %s)" sink))))
1386   (let ((input (gdb-dequeue-input)))
1387     (if input
1388         (gdb-send-item input)
1389       (progn
1390         (setq gdb-prompting t)
1391         (gud-display-frame)
1392         (setq gdb-early-user-input (nreverse gdb-early-user-input))
1393         (while gdb-early-user-input
1394             (gdb-enqueue-input (car gdb-early-user-input))
1395             (setq gdb-early-user-input (cdr gdb-early-user-input)))))))
1396
1397 (defun gdb-subprompt (ignored)
1398   "An annotation handler for non-top-level prompts."
1399   (setq gdb-prompting t))
1400
1401 (defun gdb-starting (ignored)
1402   "An annotation handler for `starting'.
1403 This says that I/O for the subprocess is now the program being debugged,
1404 not GDB."
1405   (setq gdb-active-process t)
1406   (setq gdb-printing t)
1407   (let ((sink gdb-output-sink))
1408     (cond
1409      ((eq sink 'user)
1410       (progn
1411         (setq gud-running t)
1412         (setq gdb-stack-update t)
1413         ;; Temporarily set gud-running to nil to force "info stack" onto queue.
1414         (let ((gud-running nil))
1415           (gdb-invalidate-frames))
1416         (setq gdb-inferior-status "running")
1417         (setq gdb-signalled nil)
1418         (gdb-force-mode-line-update
1419          (propertize gdb-inferior-status 'face font-lock-type-face))
1420         (gdb-remove-text-properties)
1421         (setq gud-old-arrow gud-overlay-arrow-position)
1422         (setq gud-overlay-arrow-position nil)
1423         (setq gdb-overlay-arrow-position nil)
1424         (setq gdb-stack-position nil)
1425         (if gdb-use-separate-io-buffer
1426             (setq gdb-output-sink 'inferior))))
1427      (t
1428       (gdb-resync)
1429       (error "Unexpected `starting' annotation")))))
1430
1431 (defun gdb-signal (ignored)
1432   (setq gdb-inferior-status "signal")
1433   (gdb-force-mode-line-update
1434    (propertize gdb-inferior-status 'face font-lock-warning-face))
1435   (gdb-stopping ignored))
1436
1437 (defun gdb-stopping (ignored)
1438   "An annotation handler for `breakpoint' and other annotations.
1439 They say that I/O for the subprocess is now GDB, not the program
1440 being debugged."
1441   (if gdb-use-separate-io-buffer
1442       (let ((sink gdb-output-sink))
1443         (cond
1444          ((eq sink 'inferior)
1445           (setq gdb-output-sink 'user))
1446          (t
1447           (gdb-resync)
1448           (error "Unexpected stopping annotation"))))))
1449
1450 (defun gdb-exited (ignored)
1451   "An annotation handler for `exited' and `signalled'.
1452 They say that I/O for the subprocess is now GDB, not the program
1453 being debugged and that the program is no longer running.  This
1454 function is used to change the focus of GUD tooltips to #define
1455 directives."
1456   (setq gdb-active-process nil)
1457   (setq gud-overlay-arrow-position nil)
1458   (setq gdb-overlay-arrow-position nil)
1459   (setq gdb-stack-position nil)
1460   (setq gud-old-arrow nil)
1461   (setq gdb-inferior-status "exited")
1462   (gdb-force-mode-line-update
1463    (propertize gdb-inferior-status 'face font-lock-warning-face))
1464   (gdb-stopping ignored))
1465
1466 (defun gdb-signalled (ignored)
1467   (setq gdb-signalled t))
1468
1469 (defun gdb-frame-begin (ignored)
1470   (setq gdb-frame-begin t)
1471   (setq gdb-printing nil)
1472   (let ((sink gdb-output-sink))
1473     (cond
1474      ((eq sink 'inferior)
1475       (setq gdb-output-sink 'user))
1476      ((eq sink 'user) t)
1477      ((eq sink 'emacs) t)
1478      (t
1479       (gdb-resync)
1480       (error "Unexpected frame-begin annotation (%S)" sink)))))
1481
1482 (defcustom gdb-same-frame focus-follows-mouse
1483   "Non-nil means pop up GUD buffer in same frame."
1484   :group 'gdb
1485   :type 'boolean
1486   :version "22.1")
1487
1488 (defcustom gdb-find-source-frame nil
1489   "Non-nil means try to find a source frame further up stack e.g after signal."
1490   :group 'gdb
1491   :type 'boolean
1492   :version "22.1")
1493
1494 (defun gdb-find-source-frame (arg)
1495   "Toggle looking for a source frame further up call stack.
1496 The code associated with current (innermost) frame may not have
1497 been compiled with debug information, e.g., C library routine.
1498 With prefix argument ARG, look for a source frame further up
1499 stack to display in the source buffer if ARG is positive,
1500 otherwise don't look further up."
1501   (interactive "P")
1502   (setq gdb-find-source-frame
1503         (if (null arg)
1504             (not gdb-find-source-frame)
1505           (> (prefix-numeric-value arg) 0)))
1506   (message (format "Looking for source frame %sabled"
1507                    (if gdb-find-source-frame "en" "dis"))))
1508
1509 (defun gdb-stopped (ignored)
1510   "An annotation handler for `stopped'.
1511 It is just like `gdb-stopping', except that if we already set the output
1512 sink to `user' in `gdb-stopping', that is fine."
1513   (setq gud-running nil)
1514   (unless (or gud-overlay-arrow-position gud-last-frame)
1515     (if (and gdb-frame-begin gdb-printing)
1516         (setq gud-overlay-arrow-position gud-old-arrow)
1517     ;;Pop up GUD buffer to display current frame when it doesn't have source
1518     ;;information i.e if not compiled with -g as with libc routines generally.
1519     (if gdb-same-frame
1520         (gdb-display-gdb-buffer)
1521       (gdb-frame-gdb-buffer))
1522     (if gdb-find-source-frame
1523     ;;Try to find source further up stack e.g after signal.
1524         (setq gdb-look-up-stack
1525               (if (gdb-get-buffer 'gdb-stack-buffer)
1526                   'keep
1527                 (progn
1528                   (gdb-get-buffer-create 'gdb-stack-buffer)
1529                   (gdb-invalidate-frames)
1530                   'delete))))))
1531   (unless (member gdb-inferior-status '("exited" "signal"))
1532     (setq gdb-active-process t) ;Just for attaching case.
1533     (setq gdb-inferior-status "stopped")
1534     (gdb-force-mode-line-update
1535      (propertize gdb-inferior-status 'face font-lock-warning-face)))
1536   (let ((sink gdb-output-sink))
1537     (cond
1538      ((eq sink 'inferior)
1539       (setq gdb-output-sink 'user))
1540      ((eq sink 'user) t)
1541      (t
1542       (gdb-resync)
1543       (error "Unexpected stopped annotation"))))
1544   (if gdb-signalled (gdb-exited ignored)))
1545
1546 (defun gdb-error (ignored)
1547   (setq gdb-error (not gdb-error)))
1548
1549 (defun gdb-post-prompt (ignored)
1550   "An annotation handler for `post-prompt'.
1551 This begins the collection of output from the current command if that
1552 happens to be appropriate."
1553   ;; Don't add to queue if there outstanding items or gdb-version is not known
1554   ;; yet.
1555   (unless (or gdb-pending-triggers gdb-first-post-prompt)
1556     (gdb-get-selected-frame)
1557     (gdb-invalidate-frames)
1558     ;; Regenerate breakpoints buffer in case it has been inadvertantly deleted.
1559     (gdb-get-buffer-create 'gdb-breakpoints-buffer)
1560     (gdb-invalidate-breakpoints)
1561     ;; Do this through gdb-get-selected-frame -> gdb-frame-handler
1562     ;; so gdb-pc-address is updated.
1563     ;; (gdb-invalidate-assembler)
1564
1565     (if (string-equal gdb-version "pre-6.4")
1566         (gdb-invalidate-registers)
1567       (gdb-get-changed-registers)
1568       (gdb-invalidate-registers-1))
1569
1570     (gdb-invalidate-memory)
1571     (if (string-equal gdb-version "pre-6.4")
1572         (gdb-invalidate-locals)
1573       (gdb-invalidate-locals-1))
1574
1575     (gdb-invalidate-threads)
1576     (unless (eq system-type 'darwin) ;Breaks on Darwin's GDB-5.3.
1577       ;; FIXME: with GDB-6 on Darwin, this might very well work.
1578       ;; Only needed/used with speedbar/watch expressions.
1579       (when (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame))
1580         (if (string-equal gdb-version "pre-6.4")
1581             (gdb-var-update)
1582           (gdb-var-update-1)))))
1583   (setq gdb-first-post-prompt nil)
1584   (let ((sink gdb-output-sink))
1585     (cond
1586      ((eq sink 'user) t)
1587      ((eq sink 'pre-emacs)
1588       (setq gdb-output-sink 'emacs))
1589      (t
1590       (gdb-resync)
1591       (error "Phase error in gdb-post-prompt (got %s)" sink)))))
1592
1593 (defconst gdb-buffer-list
1594 '(gdb-stack-buffer gdb-locals-buffer gdb-registers-buffer gdb-threads-buffer))
1595
1596 (defun gdb-remove-text-properties ()
1597   (dolist (buffertype gdb-buffer-list)
1598     (let ((buffer (gdb-get-buffer buffertype)))
1599       (if buffer
1600           (with-current-buffer buffer
1601             (let ((inhibit-read-only t))
1602               (remove-text-properties
1603                (point-min) (point-max) '(mouse-face nil help-echo nil))))))))
1604
1605 ;; GUD displays the selected GDB frame.  This might might not be the current
1606 ;; GDB frame (after up, down etc).  If no GDB frame is visible but the last
1607 ;; visited breakpoint is, use that window.
1608 (defun gdb-display-source-buffer (buffer)
1609   (let* ((last-window (if gud-last-last-frame
1610                          (get-buffer-window
1611                           (gud-find-file (car gud-last-last-frame)))))
1612          (source-window (or last-window
1613                             (if (and gdb-source-window
1614                                      (window-live-p gdb-source-window))
1615                                 gdb-source-window))))
1616     (when source-window
1617       (setq gdb-source-window source-window)
1618       (set-window-buffer source-window buffer))
1619     source-window))
1620
1621 ;; Derived from gud-gdb-marker-regexp
1622 (defvar gdb-fullname-regexp
1623   (concat "\\(.:?[^" ":" "\n]*\\)" ":" "\\([0-9]*\\)" ":" ".*"))
1624
1625 (defun gud-gdba-marker-filter (string)
1626   "A gud marker filter for gdb.  Handle a burst of output from GDB."
1627   (if gdb-flush-pending-output
1628       nil
1629     (when gdb-enable-debug
1630         (push (cons 'recv string) gdb-debug-log)
1631         (if (and gdb-debug-log-max
1632                  (> (length gdb-debug-log) gdb-debug-log-max))
1633             (setcdr (nthcdr (1- gdb-debug-log-max) gdb-debug-log) nil)))
1634     ;; Recall the left over gud-marker-acc from last time.
1635     (setq gud-marker-acc (concat gud-marker-acc string))
1636     ;; Start accumulating output for the GUD buffer.
1637     (let ((output ""))
1638       ;;
1639       ;; Process all the complete markers in this chunk.
1640       (while (string-match "\n\032\032\\(.*\\)\n" gud-marker-acc)
1641         (let ((annotation (match-string 1 gud-marker-acc))
1642               (before (substring gud-marker-acc 0 (match-beginning 0)))
1643               (after (substring gud-marker-acc (match-end 0))))
1644           ;;
1645           ;; Parse the tag from the annotation, and maybe its arguments.
1646           (string-match "\\(\\S-*\\) ?\\(.*\\)" annotation)
1647           (let* ((annotation-type (match-string 1 annotation))
1648                  (annotation-arguments (match-string 2 annotation))
1649                  (annotation-rule (assoc annotation-type
1650                                          gdb-annotation-rules))
1651                  (fullname (string-match gdb-fullname-regexp annotation-type)))
1652
1653             ;; Stuff prior to the match is just ordinary output.
1654             ;; It is either concatenated to OUTPUT or directed
1655             ;; elsewhere.
1656             (setq output
1657                   (gdb-concat-output output
1658                                      (concat before (if fullname "\n"))))
1659
1660             ;; Take that stuff off the gud-marker-acc.
1661             (setq gud-marker-acc after)
1662
1663             ;; Call the handler for this annotation.
1664             (if annotation-rule
1665                 (funcall (car (cdr annotation-rule))
1666                          annotation-arguments)
1667
1668               ;; Switch to gud-gdb-marker-filter if appropriate.
1669               (when fullname
1670
1671                 ;; Extract the frame position from the marker.
1672                 (setq gud-last-frame (cons (match-string 1 annotation)
1673                                            (string-to-number
1674                                             (match-string 2 annotation))))
1675
1676                 (set (make-local-variable 'gud-minor-mode) 'gdb)
1677                 (set (make-local-variable 'gud-marker-filter)
1678                      'gud-gdb-marker-filter)))
1679
1680             ;; Else the annotation is not recognized.  Ignore it silently,
1681             ;; so that GDB can add new annotations without causing
1682             ;; us to blow up.
1683             )))
1684
1685       ;; Does the remaining text end in a partial line?
1686       ;; If it does, then keep part of the gud-marker-acc until we get more.
1687       (if (string-match "\n\\'\\|\n\032\\'\\|\n\032\032.*\\'"
1688                         gud-marker-acc)
1689           (progn
1690             ;; Everything before the potential marker start can be output.
1691             (setq output
1692                   (gdb-concat-output output
1693                                      (substring gud-marker-acc 0
1694                                                 (match-beginning 0))))
1695             ;;
1696             ;; Everything after, we save, to combine with later input.
1697             (setq gud-marker-acc (substring gud-marker-acc
1698                                             (match-beginning 0))))
1699         ;;
1700         ;; In case we know the gud-marker-acc contains no partial annotations:
1701         (progn
1702           (setq output (gdb-concat-output output gud-marker-acc))
1703           (setq gud-marker-acc "")))
1704       output)))
1705
1706 (defun gdb-concat-output (so-far new)
1707   (if gdb-error
1708       (put-text-property 0 (length new) 'face font-lock-warning-face new))
1709   (let ((sink gdb-output-sink))
1710     (cond
1711      ((eq sink 'user) (concat so-far new))
1712      ((or (eq sink 'pre-emacs) (eq sink 'post-emacs)) so-far)
1713      ((eq sink 'emacs)
1714       (gdb-append-to-partial-output new)
1715       so-far)
1716      ((eq sink 'inferior)
1717       (gdb-append-to-inferior-io new)
1718       so-far)
1719      (t
1720       (gdb-resync)
1721       (error "Bogon output sink %S" sink)))))
1722
1723 (defun gdb-append-to-partial-output (string)
1724   (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
1725     (goto-char (point-max))
1726     (insert string)))
1727
1728 (defun gdb-clear-partial-output ()
1729   (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
1730     (erase-buffer)))
1731
1732 (defun gdb-append-to-inferior-io (string)
1733   (with-current-buffer (gdb-get-buffer-create 'gdb-inferior-io)
1734     (goto-char (point-max))
1735     (insert-before-markers string))
1736   (if (not (string-equal string ""))
1737       (gdb-display-buffer (gdb-get-buffer-create 'gdb-inferior-io) t)))
1738
1739 (defun gdb-clear-inferior-io ()
1740   (with-current-buffer (gdb-get-buffer-create 'gdb-inferior-io)
1741     (erase-buffer)))
1742 \f
1743
1744 ;; One trick is to have a command who's output is always available in a buffer
1745 ;; of it's own, and is always up to date.  We build several buffers of this
1746 ;; type.
1747 ;;
1748 ;; There are two aspects to this: gdb has to tell us when the output for that
1749 ;; command might have changed, and we have to be able to run the command
1750 ;; behind the user's back.
1751 ;;
1752 ;; The output phasing associated with the variable gdb-output-sink
1753 ;; help us to run commands behind the user's back.
1754 ;;
1755 ;; Below is the code for specificly managing buffers of output from one
1756 ;; command.
1757 ;;
1758
1759 ;; The trigger function is suitable for use in the assoc GDB-ANNOTATION-RULES
1760 ;; It adds an input for the command we are tracking.  It should be the
1761 ;; annotation rule binding of whatever gdb sends to tell us this command
1762 ;; might have changed it's output.
1763 ;;
1764 ;; NAME is the function name. DEMAND-PREDICATE tests if output is really needed.
1765 ;; GDB-COMMAND is a string of such.  OUTPUT-HANDLER is the function bound to the
1766 ;; input in the input queue (see comment about ``gdb communications'' above).
1767
1768 (defmacro def-gdb-auto-update-trigger (name demand-predicate gdb-command
1769                                             output-handler)
1770   `(defun ,name (&optional ignored)
1771      (if (and ,demand-predicate
1772               (not (member ',name
1773                            gdb-pending-triggers)))
1774          (progn
1775            (gdb-enqueue-input
1776             (list ,gdb-command ',output-handler))
1777            (push ',name gdb-pending-triggers)))))
1778
1779 (defmacro def-gdb-auto-update-handler (name trigger buf-key custom-defun)
1780   `(defun ,name ()
1781      (setq gdb-pending-triggers
1782       (delq ',trigger
1783             gdb-pending-triggers))
1784      (let ((buf (gdb-get-buffer ',buf-key)))
1785        (and buf
1786             (with-current-buffer buf
1787               (let* ((window (get-buffer-window buf 0))
1788                      (start (window-start window))
1789                      (p (window-point window))
1790                     (buffer-read-only nil))
1791                 (erase-buffer)
1792                 (insert-buffer-substring (gdb-get-buffer-create
1793                                           'gdb-partial-output-buffer))
1794                 (set-window-start window start)
1795                 (set-window-point window p)))))
1796      ;; put customisation here
1797      (,custom-defun)))
1798
1799 (defmacro def-gdb-auto-updated-buffer (buffer-key
1800                                        trigger-name gdb-command
1801                                        output-handler-name custom-defun)
1802   `(progn
1803      (def-gdb-auto-update-trigger ,trigger-name
1804        ;; The demand predicate:
1805        (gdb-get-buffer ',buffer-key)
1806        ,gdb-command
1807        ,output-handler-name)
1808      (def-gdb-auto-update-handler ,output-handler-name
1809        ,trigger-name ,buffer-key ,custom-defun)))
1810
1811 \f
1812 ;;
1813 ;; Breakpoint buffer : This displays the output of `info breakpoints'.
1814 ;;
1815 (gdb-set-buffer-rules 'gdb-breakpoints-buffer
1816                       'gdb-breakpoints-buffer-name
1817                       'gdb-breakpoints-mode)
1818
1819 (def-gdb-auto-updated-buffer gdb-breakpoints-buffer
1820   ;; This defines the auto update rule for buffers of type
1821   ;; `gdb-breakpoints-buffer'.
1822   ;;
1823   ;; It defines a function to serve as the annotation handler that
1824   ;; handles the `foo-invalidated' message.  That function is called:
1825   gdb-invalidate-breakpoints
1826   ;;
1827   ;; To update the buffer, this command is sent to gdb.
1828   "server info breakpoints\n"
1829   ;;
1830   ;; This also defines a function to be the handler for the output
1831   ;; from the command above.  That function will copy the output into
1832   ;; the appropriately typed buffer.  That function will be called:
1833   gdb-info-breakpoints-handler
1834   ;; buffer specific functions
1835   gdb-info-breakpoints-custom)
1836
1837 (defconst breakpoint-xpm-data
1838   "/* XPM */
1839 static char *magick[] = {
1840 /* columns rows colors chars-per-pixel */
1841 \"10 10 2 1\",
1842 \"  c red\",
1843 \"+ c None\",
1844 /* pixels */
1845 \"+++    +++\",
1846 \"++      ++\",
1847 \"+        +\",
1848 \"          \",
1849 \"          \",
1850 \"          \",
1851 \"          \",
1852 \"+        +\",
1853 \"++      ++\",
1854 \"+++    +++\",
1855 };"
1856   "XPM data used for breakpoint icon.")
1857
1858 (defconst breakpoint-enabled-pbm-data
1859   "P1
1860 10 10\",
1861 0 0 0 0 1 1 1 1 0 0 0 0
1862 0 0 0 1 1 1 1 1 1 0 0 0
1863 0 0 1 1 1 1 1 1 1 1 0 0
1864 0 1 1 1 1 1 1 1 1 1 1 0
1865 0 1 1 1 1 1 1 1 1 1 1 0
1866 0 1 1 1 1 1 1 1 1 1 1 0
1867 0 1 1 1 1 1 1 1 1 1 1 0
1868 0 0 1 1 1 1 1 1 1 1 0 0
1869 0 0 0 1 1 1 1 1 1 0 0 0
1870 0 0 0 0 1 1 1 1 0 0 0 0"
1871   "PBM data used for enabled breakpoint icon.")
1872
1873 (defconst breakpoint-disabled-pbm-data
1874   "P1
1875 10 10\",
1876 0 0 1 0 1 0 1 0 0 0
1877 0 1 0 1 0 1 0 1 0 0
1878 1 0 1 0 1 0 1 0 1 0
1879 0 1 0 1 0 1 0 1 0 1
1880 1 0 1 0 1 0 1 0 1 0
1881 0 1 0 1 0 1 0 1 0 1
1882 1 0 1 0 1 0 1 0 1 0
1883 0 1 0 1 0 1 0 1 0 1
1884 0 0 1 0 1 0 1 0 1 0
1885 0 0 0 1 0 1 0 1 0 0"
1886   "PBM data used for disabled breakpoint icon.")
1887
1888 (defvar breakpoint-enabled-icon nil
1889   "Icon for enabled breakpoint in display margin.")
1890
1891 (defvar breakpoint-disabled-icon nil
1892   "Icon for disabled breakpoint in display margin.")
1893
1894 (and (display-images-p)
1895      ;; Bitmap for breakpoint in fringe
1896      (define-fringe-bitmap 'breakpoint
1897        "\x3c\x7e\xff\xff\xff\xff\x7e\x3c")
1898      ;; Bitmap for gud-overlay-arrow in fringe
1899      (define-fringe-bitmap 'hollow-right-triangle
1900        "\xe0\x90\x88\x84\x84\x88\x90\xe0"))
1901
1902 (defface breakpoint-enabled
1903   '((t
1904      :foreground "red1"
1905      :weight bold))
1906   "Face for enabled breakpoint icon in fringe."
1907   :group 'gdb)
1908
1909 (defface breakpoint-disabled
1910   '((((class color) (min-colors 88)) :foreground "grey70")
1911     ;; Ensure that on low-color displays that we end up something visible.
1912     (((class color) (min-colors 8) (background light))
1913      :foreground "black")
1914     (((class color) (min-colors 8) (background dark))
1915      :foreground "white")
1916     (((type tty) (class mono))
1917      :inverse-video t)
1918     (t :background "gray"))
1919   "Face for disabled breakpoint icon in fringe."
1920   :group 'gdb)
1921
1922 (defconst gdb-breakpoint-regexp
1923   "\\(?:\\([0-9]+\\).*?\\(?:point\\|catch\\s-+\\S-+\\)\\s-+\\S-+\\|\\([0-9]+\\.[0-9]+\\)\\)\\s-+\\(.\\)\\s-+")
1924
1925 ;; Put breakpoint icons in relevant margins (even those set in the GUD buffer).
1926 (defun gdb-info-breakpoints-custom ()
1927   (let ((flag) (bptno))
1928     ;; Remove all breakpoint-icons in source buffers but not assembler buffer.
1929     (dolist (buffer (buffer-list))
1930       (with-current-buffer buffer
1931         (if (and (memq gud-minor-mode '(gdba gdbmi))
1932                  (not (string-match "\\` ?\\*.+\\*\\'" (buffer-name))))
1933             (gdb-remove-breakpoint-icons (point-min) (point-max)))))
1934     (with-current-buffer (gdb-get-buffer 'gdb-breakpoints-buffer)
1935       (save-excursion
1936         (let ((buffer-read-only nil))
1937         (goto-char (point-min))
1938         (while (< (point) (- (point-max) 1))
1939           (forward-line 1)
1940           (if (looking-at gdb-breakpoint-regexp)
1941               (progn
1942                 (setq bptno (or (match-string 1) (match-string 2)))
1943                 (setq flag (char-after (match-beginning 3)))
1944                 (if (match-string 1)
1945                     (setq gdb-parent-bptno-enabled (eq flag ?y)))
1946                 (add-text-properties
1947                  (match-beginning 3) (match-end 3)
1948                  (if (eq flag ?y)
1949                      '(face font-lock-warning-face)
1950                    '(face font-lock-type-face)))
1951                 (let ((bl (point))
1952                       (el (line-end-position)))
1953                   (if (re-search-forward " in \\(.*\\) at\\s-+" el t)
1954                       (progn
1955                         (add-text-properties
1956                          (match-beginning 1) (match-end 1)
1957                          '(face font-lock-function-name-face))
1958                         (looking-at "\\(\\S-+\\):\\([0-9]+\\)")
1959                         (let ((line (match-string 2))
1960                               (file (match-string 1)))
1961                           (add-text-properties bl el
1962                            '(mouse-face highlight
1963                              help-echo "mouse-2, RET: visit breakpoint"))
1964                           (unless (file-exists-p file)
1965                             (setq file (cdr (assoc bptno gdb-location-alist))))
1966                           (if (and file
1967                                    (not (string-equal file "File not found")))
1968                               (with-current-buffer
1969                                   (find-file-noselect file 'nowarn)
1970                                 (set (make-local-variable 'gud-minor-mode)
1971                                      'gdba)
1972                                 (set (make-local-variable 'tool-bar-map)
1973                                      gud-tool-bar-map)
1974                                 ;; Only want one breakpoint icon at each
1975                                 ;; location.
1976                                 (save-excursion
1977                                   (goto-line (string-to-number line))
1978                                   (gdb-put-breakpoint-icon (eq flag ?y) bptno)))
1979                             (gdb-enqueue-input
1980                              (list
1981                               (concat gdb-server-prefix "list "
1982                                       (match-string-no-properties 1) ":1\n")
1983                               'ignore))
1984                             (gdb-enqueue-input
1985                              (list (concat gdb-server-prefix "info source\n")
1986                                    `(lambda () (gdb-get-location
1987                                                 ,bptno ,line ,flag)))))))
1988                     (if (re-search-forward
1989                          "<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>"
1990                          el t)
1991                         (add-text-properties
1992                          (match-beginning 1) (match-end 1)
1993                          '(face font-lock-function-name-face))
1994                       (end-of-line)
1995                       (re-search-backward "\\s-\\(\\S-*\\)"
1996                                           bl t)
1997                       (add-text-properties
1998                        (match-beginning 1) (match-end 1)
1999                        '(face font-lock-variable-name-face)))))))
2000           (end-of-line))))))
2001   (if (gdb-get-buffer 'gdb-assembler-buffer) (gdb-assembler-custom))
2002
2003   ;; Breakpoints buffer is always present.  Hack to just update
2004   ;; current frame if there's been no execution.
2005   (if gdb-stack-update
2006       (setq gdb-stack-update nil)
2007     (if (gdb-get-buffer 'gdb-stack-buffer) (gdb-info-stack-custom))))
2008
2009 (declare-function gud-remove "gdb-ui" t t) ; gud-def
2010 (declare-function gud-break  "gdb-ui" t t) ; gud-def
2011
2012 (defun gdb-mouse-set-clear-breakpoint (event)
2013   "Set/clear breakpoint in left fringe/margin at mouse click.
2014 If not in a source or disassembly buffer just set point."
2015   (interactive "e")
2016   (mouse-minibuffer-check event)
2017   (let ((posn (event-end event)))
2018     (if (or (buffer-file-name) (eq major-mode 'gdb-assembler-mode))
2019         (if (numberp (posn-point posn))
2020             (with-selected-window (posn-window posn)
2021               (save-excursion
2022                 (goto-char (posn-point posn))
2023                 (if (or (posn-object posn)
2024                         (eq (car (fringe-bitmaps-at-pos (posn-point posn)))
2025                             'breakpoint))
2026                     (gud-remove nil)
2027                   (gud-break nil)))))
2028       (posn-set-point posn))))
2029
2030 (defun gdb-mouse-toggle-breakpoint-margin (event)
2031   "Enable/disable breakpoint in left margin with mouse click."
2032   (interactive "e")
2033   (mouse-minibuffer-check event)
2034   (let ((posn (event-end event)))
2035     (if (numberp (posn-point posn))
2036         (with-selected-window (posn-window posn)
2037           (save-excursion
2038             (goto-char (posn-point posn))
2039             (if (posn-object posn)
2040                 (let* ((bptno (get-text-property
2041                                0 'gdb-bptno (car (posn-string posn)))))
2042                   (string-match "\\([0-9+]\\)*" bptno)
2043                   (gdb-enqueue-input
2044                    (list
2045                     (concat gdb-server-prefix
2046                             (if (get-text-property
2047                                  0 'gdb-enabled (car (posn-string posn)))
2048                                 "disable "
2049                               "enable ")
2050                             (match-string 1 bptno) "\n")
2051                    'ignore)))))))))
2052
2053 (defun gdb-mouse-toggle-breakpoint-fringe (event)
2054   "Enable/disable breakpoint in left fringe with mouse click."
2055   (interactive "e")
2056   (mouse-minibuffer-check event)
2057   (let* ((posn (event-end event))
2058          (pos (posn-point posn))
2059          obj)
2060     (when (numberp pos)
2061       (with-selected-window (posn-window posn)
2062         (save-excursion
2063           (set-buffer (window-buffer (selected-window)))
2064           (goto-char pos)
2065           (dolist (overlay (overlays-in pos pos))
2066             (when (overlay-get overlay 'put-break)
2067               (setq obj (overlay-get overlay 'before-string))))
2068           (when (stringp obj)
2069             (let* ((bptno (get-text-property 0 'gdb-bptno obj)))
2070               (string-match "\\([0-9+]\\)*" bptno)
2071               (gdb-enqueue-input
2072                (list
2073                 (concat gdb-server-prefix
2074                         (if (get-text-property 0 'gdb-enabled obj)
2075                             "disable "
2076                           "enable ")
2077                         (match-string 1 bptno) "\n")
2078                 'ignore)))))))))
2079
2080 (defun gdb-breakpoints-buffer-name ()
2081   (with-current-buffer gud-comint-buffer
2082     (concat "*breakpoints of " (gdb-get-target-string) "*")))
2083
2084 (defun gdb-display-breakpoints-buffer ()
2085   "Display status of user-settable breakpoints."
2086   (interactive)
2087   (gdb-display-buffer
2088    (gdb-get-buffer-create 'gdb-breakpoints-buffer) t))
2089
2090 (defun gdb-frame-breakpoints-buffer ()
2091   "Display status of user-settable breakpoints in a new frame."
2092   (interactive)
2093   (let ((special-display-regexps (append special-display-regexps '(".*")))
2094         (special-display-frame-alist gdb-frame-parameters))
2095     (display-buffer (gdb-get-buffer-create 'gdb-breakpoints-buffer))))
2096
2097 (defvar gdb-breakpoints-mode-map
2098   (let ((map (make-sparse-keymap))
2099         (menu (make-sparse-keymap "Breakpoints")))
2100     (define-key menu [quit] '("Quit"   . gdb-delete-frame-or-window))
2101     (define-key menu [goto] '("Goto"   . gdb-goto-breakpoint))
2102     (define-key menu [delete] '("Delete" . gdb-delete-breakpoint))
2103     (define-key menu [toggle] '("Toggle" . gdb-toggle-breakpoint))
2104     (suppress-keymap map)
2105     (define-key map [menu-bar breakpoints] (cons "Breakpoints" menu))
2106     (define-key map " " 'gdb-toggle-breakpoint)
2107     (define-key map "D" 'gdb-delete-breakpoint)
2108     ;; Don't bind "q" to kill-this-buffer as we need it for breakpoint icons.
2109     (define-key map "q" 'gdb-delete-frame-or-window)
2110     (define-key map "\r" 'gdb-goto-breakpoint)
2111     (define-key map [mouse-2] 'gdb-goto-breakpoint)
2112     (define-key map [follow-link] 'mouse-face)
2113     map))
2114
2115 (defun gdb-delete-frame-or-window ()
2116   "Delete frame if there is only one window.  Otherwise delete the window."
2117   (interactive)
2118   (if (one-window-p) (delete-frame)
2119     (delete-window)))
2120
2121 (defun gdb-breakpoints-mode ()
2122   "Major mode for gdb breakpoints.
2123
2124 \\{gdb-breakpoints-mode-map}"
2125   (kill-all-local-variables)
2126   (setq major-mode 'gdb-breakpoints-mode)
2127   (setq mode-name "Breakpoints")
2128   (use-local-map gdb-breakpoints-mode-map)
2129   (setq buffer-read-only t)
2130   (run-mode-hooks 'gdb-breakpoints-mode-hook)
2131   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
2132       'gdb-invalidate-breakpoints
2133     'gdbmi-invalidate-breakpoints))
2134
2135 (defun gdb-toggle-breakpoint ()
2136   "Enable/disable breakpoint at current line."
2137   (interactive)
2138   (save-excursion
2139     (beginning-of-line 1)
2140     (if (looking-at gdb-breakpoint-regexp)
2141         (gdb-enqueue-input
2142          (list
2143           (concat gdb-server-prefix
2144                   (if (eq ?y (char-after (match-beginning 3)))
2145                       "disable "
2146                     "enable ")
2147                   (or (match-string 1) (match-string 2)) "\n") 'ignore))
2148       (error "Not recognized as break/watchpoint line"))))
2149
2150 (defun gdb-delete-breakpoint ()
2151   "Delete the breakpoint at current line."
2152   (interactive)
2153   (save-excursion
2154     (beginning-of-line 1)
2155     (if (looking-at gdb-breakpoint-regexp)
2156         (if (match-string 1)
2157             (gdb-enqueue-input
2158              (list
2159               (concat gdb-server-prefix "delete " (match-string 1) "\n")
2160               'ignore))
2161           (message-box "This breakpoint cannot be deleted on its own."))
2162       (error "Not recognized as break/watchpoint line"))))
2163
2164 (defun gdb-goto-breakpoint (&optional event)
2165   "Display the breakpoint location specified at current line."
2166   (interactive (list last-input-event))
2167   (if event (posn-set-point (event-end event)))
2168   (save-excursion
2169     (beginning-of-line 1)
2170     (if (looking-at "\\([0-9]+\\.?[0-9]*\\) .+ in .+ at\\s-+\\(\\S-+\\):\\([0-9]+\\)")
2171         (let ((bptno (match-string 1))
2172               (file  (match-string 2))
2173               (line  (match-string 3)))
2174           (save-selected-window
2175             (let* ((buffer (find-file-noselect
2176                          (if (file-exists-p file) file
2177                            (cdr (assoc bptno gdb-location-alist)))))
2178                    (window (or (gdb-display-source-buffer buffer)
2179                                (display-buffer buffer))))
2180               (setq gdb-source-window window)
2181               (with-current-buffer buffer
2182                 (goto-line (string-to-number line))
2183                 (set-window-point window (point))))))
2184       (error "No location specified."))))
2185 \f
2186
2187 ;; Frames buffer.  This displays a perpetually correct bactracktrace
2188 ;; (from the command `where').
2189 ;;
2190 ;; Alas, if your stack is deep, it is costly.
2191 ;;
2192 (defcustom gdb-max-frames 40
2193   "Maximum number of frames displayed in call stack."
2194   :type 'integer
2195   :group 'gdb
2196   :version "22.1")
2197
2198 (gdb-set-buffer-rules 'gdb-stack-buffer
2199                       'gdb-stack-buffer-name
2200                       'gdb-frames-mode)
2201
2202 (def-gdb-auto-updated-buffer gdb-stack-buffer
2203   gdb-invalidate-frames
2204   (concat "server info stack " (number-to-string gdb-max-frames) "\n")
2205   gdb-info-stack-handler
2206   gdb-info-stack-custom)
2207
2208 ;; This may be more important for embedded targets where unwinding the
2209 ;; stack may take a long time.
2210 (defadvice gdb-invalidate-frames (around gdb-invalidate-frames-advice
2211                                          (&optional ignored) activate compile)
2212   "Only queue \"info stack\" if execution has occurred."
2213   (if gdb-stack-update ad-do-it))
2214
2215 (defun gdb-info-stack-custom ()
2216   (with-current-buffer (gdb-get-buffer 'gdb-stack-buffer)
2217     (let (move-to)
2218       (save-excursion
2219         (unless (eq gdb-look-up-stack 'delete)
2220           (let ((buffer-read-only nil)
2221                 bl el)
2222             (goto-char (point-min))
2223             (while (< (point) (point-max))
2224               (setq bl (line-beginning-position)
2225                     el (line-end-position))
2226               (when (looking-at "#")
2227                 (add-text-properties bl el
2228                                      '(mouse-face highlight
2229                                                   help-echo "mouse-2, RET: Select frame")))
2230               (goto-char bl)
2231               (when (looking-at "^#\\([0-9]+\\)")
2232                 (when (string-equal (match-string 1) gdb-frame-number)
2233                   (if (> (car (window-fringes)) 0)
2234                       (progn
2235                         (or gdb-stack-position
2236                             (setq gdb-stack-position (make-marker)))
2237                         (set-marker gdb-stack-position (point))
2238                         (setq move-to gdb-stack-position))
2239                     (put-text-property bl (+ bl 4)
2240                                        'face '(:inverse-video t))
2241                     (setq move-to bl)))
2242                 (when (re-search-forward "\\([^ ]+\\) (" el t)
2243                   (put-text-property (match-beginning 1) (match-end 1)
2244                                      'face font-lock-function-name-face)
2245                   (setq bl (match-end 0))
2246                   (while (re-search-forward "<\\([^>]+\\)>" el t)
2247                     (put-text-property (match-beginning 1) (match-end 1)
2248                                        'face font-lock-function-name-face))
2249                   (goto-char bl)
2250                   (while (re-search-forward "\\(\\(\\sw\\|[_.]\\)+\\)=" el t)
2251                     (put-text-property (match-beginning 1) (match-end 1)
2252                                        'face font-lock-variable-name-face))))
2253               (forward-line 1))
2254             (forward-line -1)
2255             (when (looking-at "(More stack frames follow...)")
2256               (add-text-properties (match-beginning 0) (match-end 0)
2257                                    '(mouse-face highlight
2258                                                 gdb-max-frames t
2259                                                 help-echo
2260                                                 "mouse-2, RET: customize gdb-max-frames to see more frames")))))
2261         (when gdb-look-up-stack
2262           (goto-char (point-min))
2263           (when (re-search-forward "\\(\\S-+?\\):\\([0-9]+\\)" nil t)
2264             (let ((start (line-beginning-position))
2265                   (file (match-string 1))
2266                   (line (match-string 2)))
2267               (re-search-backward "^#*\\([0-9]+\\)" start t)
2268               (gdb-enqueue-input
2269                (list (concat gdb-server-prefix "frame "
2270                              (match-string 1) "\n") 'gdb-set-hollow))
2271               (gdb-enqueue-input
2272                (list (concat gdb-server-prefix "frame 0\n") 'ignore))))))
2273       (when move-to
2274         (let ((window (get-buffer-window (current-buffer) 0)))
2275           (when window
2276             (with-selected-window window
2277               (goto-char move-to)
2278               (unless (pos-visible-in-window-p)
2279                 (recenter '(center)))))))))
2280   (if (eq gdb-look-up-stack 'delete)
2281       (kill-buffer (gdb-get-buffer 'gdb-stack-buffer)))
2282   (setq gdb-look-up-stack nil))
2283
2284 (defun gdb-set-hollow ()
2285   (if gud-last-last-frame
2286       (with-current-buffer (gud-find-file (car gud-last-last-frame))
2287         (setq fringe-indicator-alist
2288               '((overlay-arrow . hollow-right-triangle))))))
2289
2290 (defun gdb-stack-buffer-name ()
2291   (with-current-buffer gud-comint-buffer
2292     (concat "*stack frames of " (gdb-get-target-string) "*")))
2293
2294 (defun gdb-display-stack-buffer ()
2295   "Display backtrace of current stack."
2296   (interactive)
2297   (gdb-display-buffer
2298    (gdb-get-buffer-create 'gdb-stack-buffer) t))
2299
2300 (defun gdb-frame-stack-buffer ()
2301   "Display backtrace of current stack in a new frame."
2302   (interactive)
2303   (let ((special-display-regexps (append special-display-regexps '(".*")))
2304         (special-display-frame-alist gdb-frame-parameters))
2305     (display-buffer (gdb-get-buffer-create 'gdb-stack-buffer))))
2306
2307 (defvar gdb-frames-mode-map
2308   (let ((map (make-sparse-keymap)))
2309     (suppress-keymap map)
2310     (define-key map "q" 'kill-this-buffer)
2311     (define-key map "\r" 'gdb-frames-select)
2312     (define-key map "F" 'gdb-frames-force-update)
2313     (define-key map [mouse-2] 'gdb-frames-select)
2314     (define-key map [follow-link] 'mouse-face)
2315     map))
2316
2317 (defun gdb-frames-force-update ()
2318   "Force update of call stack.
2319 Use when the displayed call stack gets out of sync with the
2320 actual one, e.g after using the Gdb command \"return\" or setting
2321 $pc directly from the GUD buffer.  This command isn't normally needed."
2322   (interactive)
2323   (setq gdb-stack-update t)
2324   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
2325       (gdb-invalidate-frames)
2326     (gdbmi-invalidate-frames)))
2327
2328 (defun gdb-frames-mode ()
2329   "Major mode for gdb call stack.
2330
2331 \\{gdb-frames-mode-map}"
2332   (kill-all-local-variables)
2333   (setq major-mode 'gdb-frames-mode)
2334   (setq mode-name "Frames")
2335   (setq gdb-stack-position nil)
2336   (add-to-list 'overlay-arrow-variable-list 'gdb-stack-position)
2337   (setq truncate-lines t)  ;; Make it easier to see overlay arrow.
2338   (setq buffer-read-only t)
2339   (gdb-thread-identification)
2340   (use-local-map gdb-frames-mode-map)
2341   (run-mode-hooks 'gdb-frames-mode-hook)
2342   (setq gdb-stack-update t)
2343   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
2344       'gdb-invalidate-frames
2345     'gdbmi-invalidate-frames))
2346
2347 (defun gdb-get-frame-number ()
2348   (save-excursion
2349     (end-of-line)
2350     (let* ((start (line-beginning-position))
2351            (pos (re-search-backward "^#*\\([0-9]+\\)" start t))
2352            (n (or (and pos (match-string 1)) "0")))
2353       n)))
2354
2355 (defun gdb-frames-select (&optional event)
2356   "Select the frame and display the relevant source."
2357   (interactive (list last-input-event))
2358   (if event (posn-set-point (event-end event)))
2359   (if (get-text-property (point) 'gdb-max-frames)
2360       (progn
2361         (message-box "After setting gdb-max-frames, you need to enter\n\
2362 another GDB command e.g pwd, to see new frames")
2363       (customize-variable-other-window 'gdb-max-frames))
2364     (gdb-enqueue-input
2365      (list (concat gdb-server-prefix "frame "
2366                    (gdb-get-frame-number) "\n") 'ignore))))
2367 \f
2368
2369 ;; Threads buffer.  This displays a selectable thread list.
2370 ;;
2371 (gdb-set-buffer-rules 'gdb-threads-buffer
2372                       'gdb-threads-buffer-name
2373                       'gdb-threads-mode)
2374
2375 (def-gdb-auto-updated-buffer gdb-threads-buffer
2376   gdb-invalidate-threads
2377   (concat gdb-server-prefix "info threads\n")
2378   gdb-info-threads-handler
2379   gdb-info-threads-custom)
2380
2381 (defun gdb-info-threads-custom ()
2382   (with-current-buffer (gdb-get-buffer 'gdb-threads-buffer)
2383     (let ((buffer-read-only nil))
2384       (save-excursion
2385         (goto-char (point-min))
2386         (if (re-search-forward "\\* \\([0-9]+\\)" nil t)
2387             (setq gdb-thread-indicator
2388                   (propertize (concat " [" (match-string 1) "]")
2389                               ; FIXME: this help-echo doesn't work
2390                               'help-echo "thread id")))
2391         (goto-char (point-min))
2392         (while (< (point) (point-max))
2393           (unless (looking-at "No ")
2394             (add-text-properties (line-beginning-position) (line-end-position)
2395                                  '(mouse-face highlight
2396                                  help-echo "mouse-2, RET: select thread")))
2397           (forward-line 1))))))
2398
2399 (defun gdb-threads-buffer-name ()
2400   (with-current-buffer gud-comint-buffer
2401     (concat "*threads of " (gdb-get-target-string) "*")))
2402
2403 (defun gdb-display-threads-buffer ()
2404   "Display IDs of currently known threads."
2405   (interactive)
2406   (gdb-display-buffer
2407    (gdb-get-buffer-create 'gdb-threads-buffer) t))
2408
2409 (defun gdb-frame-threads-buffer ()
2410   "Display IDs of currently known threads in a new frame."
2411   (interactive)
2412   (let ((special-display-regexps (append special-display-regexps '(".*")))
2413         (special-display-frame-alist gdb-frame-parameters))
2414     (display-buffer (gdb-get-buffer-create 'gdb-threads-buffer))))
2415
2416 (defvar gdb-threads-mode-map
2417   (let ((map (make-sparse-keymap)))
2418     (suppress-keymap map)
2419     (define-key map "q" 'kill-this-buffer)
2420     (define-key map "\r" 'gdb-threads-select)
2421     (define-key map [mouse-2] 'gdb-threads-select)
2422     (define-key map [follow-link] 'mouse-face)
2423     map))
2424
2425 (defvar gdb-threads-font-lock-keywords
2426   '((") +\\([^ ]+\\) ("  (1 font-lock-function-name-face))
2427     ("in \\([^ ]+\\) ("  (1 font-lock-function-name-face))
2428     ("\\(\\(\\sw\\|[_.]\\)+\\)="  (1 font-lock-variable-name-face)))
2429   "Font lock keywords used in `gdb-threads-mode'.")
2430
2431 (defun gdb-threads-mode ()
2432   "Major mode for gdb threads.
2433
2434 \\{gdb-threads-mode-map}"
2435   (kill-all-local-variables)
2436   (setq major-mode 'gdb-threads-mode)
2437   (setq mode-name "Threads")
2438   (setq buffer-read-only t)
2439   (use-local-map gdb-threads-mode-map)
2440   (set (make-local-variable 'font-lock-defaults)
2441        '(gdb-threads-font-lock-keywords))
2442   (run-mode-hooks 'gdb-threads-mode-hook)
2443   ;; Force "info threads" onto queue.
2444   (lambda () (let ((gud-running nil)) (gdb-invalidate-threads))))
2445
2446 (defun gdb-get-thread-number ()
2447   (save-excursion
2448     (re-search-backward "^\\s-*\\([0-9]*\\)" nil t)
2449     (match-string-no-properties 1)))
2450
2451 (defun gdb-threads-select (&optional event)
2452   "Select the thread and display the relevant source."
2453   (interactive (list last-input-event))
2454   (if event (posn-set-point (event-end event)))
2455   (gdb-enqueue-input
2456    (list (concat gdb-server-prefix "thread "
2457                  (gdb-get-thread-number) "\n") 'ignore))
2458   (gud-display-frame))
2459
2460 (defun gdb-thread-identification ()
2461   (setq mode-line-buffer-identification
2462         (list (car mode-line-buffer-identification)
2463               '(gdb-thread-indicator gdb-thread-indicator))))
2464 \f
2465 ;; Registers buffer.
2466 ;;
2467 (defcustom gdb-all-registers nil
2468   "Non-nil means include floating-point registers."
2469   :type 'boolean
2470   :group 'gdb
2471   :version "22.1")
2472
2473 (gdb-set-buffer-rules 'gdb-registers-buffer
2474                       'gdb-registers-buffer-name
2475                       'gdb-registers-mode)
2476
2477 (def-gdb-auto-updated-buffer gdb-registers-buffer
2478   gdb-invalidate-registers
2479   (concat
2480    gdb-server-prefix "info " (if gdb-all-registers "all-") "registers\n")
2481   gdb-info-registers-handler
2482   gdb-info-registers-custom)
2483
2484 (defun gdb-info-registers-custom ()
2485   (with-current-buffer (gdb-get-buffer 'gdb-registers-buffer)
2486     (save-excursion
2487       (let ((buffer-read-only nil)
2488             start end)
2489         (goto-char (point-min))
2490         (while (< (point) (point-max))
2491           (setq start (line-beginning-position))
2492           (setq end (line-end-position))
2493           (when (looking-at "^[^ ]+")
2494             (unless (string-equal (match-string 0) "The")
2495               (put-text-property start (match-end 0)
2496                                  'face font-lock-variable-name-face)
2497               (add-text-properties start end
2498                                    '(help-echo "mouse-2: edit value"
2499                                      mouse-face highlight))))
2500           (forward-line 1))))))
2501
2502 (defun gdb-edit-register-value (&optional event)
2503   (interactive (list last-input-event))
2504   (save-excursion
2505     (if event (posn-set-point (event-end event)))
2506     (beginning-of-line)
2507     (let* ((register (current-word))
2508           (value (read-string (format "New value (%s): " register))))
2509       (gdb-enqueue-input
2510        (list (concat gdb-server-prefix "set $" register "=" value "\n")
2511              'ignore)))))
2512
2513 (defvar gdb-registers-mode-map
2514   (let ((map (make-sparse-keymap)))
2515     (suppress-keymap map)
2516     (define-key map "\r" 'gdb-edit-register-value)
2517     (define-key map [mouse-2] 'gdb-edit-register-value)
2518     (define-key map " " 'gdb-all-registers)
2519     (define-key map "q" 'kill-this-buffer)
2520      map))
2521
2522 (defun gdb-registers-mode ()
2523   "Major mode for gdb registers.
2524
2525 \\{gdb-registers-mode-map}"
2526   (kill-all-local-variables)
2527   (setq major-mode 'gdb-registers-mode)
2528   (setq mode-name "Registers")
2529   (setq buffer-read-only t)
2530   (gdb-thread-identification)
2531   (use-local-map gdb-registers-mode-map)
2532   (run-mode-hooks 'gdb-registers-mode-hook)
2533   (if (string-equal gdb-version "pre-6.4")
2534       (progn
2535         (if gdb-all-registers (setq mode-name "Registers:All"))
2536         'gdb-invalidate-registers)
2537     'gdb-invalidate-registers-1))
2538
2539 (defun gdb-registers-buffer-name ()
2540   (with-current-buffer gud-comint-buffer
2541     (concat "*registers of " (gdb-get-target-string) "*")))
2542
2543 (defun gdb-display-registers-buffer ()
2544   "Display integer register contents."
2545   (interactive)
2546   (gdb-display-buffer
2547    (gdb-get-buffer-create 'gdb-registers-buffer) t))
2548
2549 (defun gdb-frame-registers-buffer ()
2550   "Display integer register contents in a new frame."
2551   (interactive)
2552   (let ((special-display-regexps (append special-display-regexps '(".*")))
2553         (special-display-frame-alist gdb-frame-parameters))
2554     (display-buffer (gdb-get-buffer-create 'gdb-registers-buffer))))
2555
2556 (defun gdb-all-registers ()
2557   "Toggle the display of floating-point registers (pre GDB 6.4 only)."
2558   (interactive)
2559   (when (string-equal gdb-version "pre-6.4")
2560     (if gdb-all-registers
2561         (progn
2562           (setq gdb-all-registers nil)
2563           (with-current-buffer (gdb-get-buffer-create 'gdb-registers-buffer)
2564             (setq mode-name "Registers")))
2565       (setq gdb-all-registers t)
2566       (with-current-buffer (gdb-get-buffer-create 'gdb-registers-buffer)
2567         (setq mode-name "Registers:All")))
2568     (message (format "Display of floating-point registers %sabled"
2569                      (if gdb-all-registers "en" "dis")))
2570     (gdb-invalidate-registers)))
2571 \f
2572
2573 ;; Memory buffer.
2574 ;;
2575 (defcustom gdb-memory-repeat-count 32
2576   "Number of data items in memory window."
2577   :type 'integer
2578   :group 'gdb
2579   :version "22.1")
2580
2581 (defcustom gdb-memory-format "x"
2582   "Display format of data items in memory window."
2583   :type '(choice (const :tag "Hexadecimal" "x")
2584                  (const :tag "Signed decimal" "d")
2585                  (const :tag "Unsigned decimal" "u")
2586                  (const :tag "Octal" "o")
2587                  (const :tag "Binary" "t"))
2588   :group 'gdb
2589   :version "22.1")
2590
2591 (defcustom gdb-memory-unit "w"
2592   "Unit size of data items in memory window."
2593   :type '(choice (const :tag "Byte" "b")
2594                  (const :tag "Halfword" "h")
2595                  (const :tag "Word" "w")
2596                  (const :tag "Giant word" "g"))
2597   :group 'gdb
2598   :version "22.1")
2599
2600 (gdb-set-buffer-rules 'gdb-memory-buffer
2601                       'gdb-memory-buffer-name
2602                       'gdb-memory-mode)
2603
2604 (def-gdb-auto-updated-buffer gdb-memory-buffer
2605   gdb-invalidate-memory
2606   (concat gdb-server-prefix "x/" (number-to-string gdb-memory-repeat-count)
2607           gdb-memory-format gdb-memory-unit " " gdb-memory-address "\n")
2608   gdb-read-memory-handler
2609   gdb-read-memory-custom)
2610
2611 (defun gdb-read-memory-custom ()
2612   (save-excursion
2613     (goto-char (point-min))
2614     (if (looking-at "0x[[:xdigit:]]+")
2615         (setq gdb-memory-address (match-string 0)))))
2616
2617 (defvar gdb-memory-mode-map
2618   (let ((map (make-sparse-keymap)))
2619     (suppress-keymap map)
2620     (define-key map "q" 'kill-this-buffer)
2621      map))
2622
2623 (defun gdb-memory-set-address (event)
2624   "Set the start memory address."
2625   (interactive "e")
2626   (save-selected-window
2627     (select-window (posn-window (event-start event)))
2628     (let ((arg (read-from-minibuffer "Memory address: ")))
2629       (setq gdb-memory-address arg))
2630     (gdb-invalidate-memory)))
2631
2632 (defun gdb-memory-set-repeat-count (event)
2633   "Set the number of data items in memory window."
2634   (interactive "e")
2635   (save-selected-window
2636     (select-window (posn-window (event-start event)))
2637     (let* ((arg (read-from-minibuffer "Repeat count: "))
2638           (count (string-to-number arg)))
2639       (if (<= count 0)
2640           (error "Positive numbers only")
2641         (customize-set-variable 'gdb-memory-repeat-count count)
2642         (gdb-invalidate-memory)))))
2643
2644 (defun gdb-memory-format-binary ()
2645   "Set the display format to binary."
2646   (interactive)
2647   (customize-set-variable 'gdb-memory-format "t")
2648   (gdb-invalidate-memory))
2649
2650 (defun gdb-memory-format-octal ()
2651   "Set the display format to octal."
2652   (interactive)
2653   (customize-set-variable 'gdb-memory-format "o")
2654   (gdb-invalidate-memory))
2655
2656 (defun gdb-memory-format-unsigned ()
2657   "Set the display format to unsigned decimal."
2658   (interactive)
2659   (customize-set-variable 'gdb-memory-format "u")
2660   (gdb-invalidate-memory))
2661
2662 (defun gdb-memory-format-signed ()
2663   "Set the display format to decimal."
2664   (interactive)
2665   (customize-set-variable 'gdb-memory-format "d")
2666   (gdb-invalidate-memory))
2667
2668 (defun gdb-memory-format-hexadecimal ()
2669   "Set the display format to hexadecimal."
2670   (interactive)
2671   (customize-set-variable 'gdb-memory-format "x")
2672   (gdb-invalidate-memory))
2673
2674 (defvar gdb-memory-format-map
2675   (let ((map (make-sparse-keymap)))
2676     (define-key map [header-line down-mouse-3] 'gdb-memory-format-menu-1)
2677     map)
2678   "Keymap to select format in the header line.")
2679
2680 (defvar gdb-memory-format-menu (make-sparse-keymap "Format")
2681   "Menu of display formats in the header line.")
2682
2683 (define-key gdb-memory-format-menu [binary]
2684   '(menu-item "Binary" gdb-memory-format-binary
2685               :button (:radio . (equal gdb-memory-format "t"))))
2686 (define-key gdb-memory-format-menu [octal]
2687   '(menu-item "Octal" gdb-memory-format-octal
2688               :button (:radio . (equal gdb-memory-format "o"))))
2689 (define-key gdb-memory-format-menu [unsigned]
2690   '(menu-item "Unsigned Decimal" gdb-memory-format-unsigned
2691               :button (:radio . (equal gdb-memory-format "u"))))
2692 (define-key gdb-memory-format-menu [signed]
2693   '(menu-item "Signed Decimal" gdb-memory-format-signed
2694               :button (:radio . (equal gdb-memory-format "d"))))
2695 (define-key gdb-memory-format-menu [hexadecimal]
2696   '(menu-item "Hexadecimal" gdb-memory-format-hexadecimal
2697               :button (:radio . (equal gdb-memory-format "x"))))
2698
2699 (defun gdb-memory-format-menu (event)
2700   (interactive "@e")
2701   (x-popup-menu event gdb-memory-format-menu))
2702
2703 (defun gdb-memory-format-menu-1 (event)
2704   (interactive "e")
2705   (save-selected-window
2706     (select-window (posn-window (event-start event)))
2707     (let* ((selection (gdb-memory-format-menu event))
2708            (binding (and selection (lookup-key gdb-memory-format-menu
2709                                                (vector (car selection))))))
2710       (if binding (call-interactively binding)))))
2711
2712 (defun gdb-memory-unit-giant ()
2713   "Set the unit size to giant words (eight bytes)."
2714   (interactive)
2715   (customize-set-variable 'gdb-memory-unit "g")
2716   (gdb-invalidate-memory))
2717
2718 (defun gdb-memory-unit-word ()
2719   "Set the unit size to words (four bytes)."
2720   (interactive)
2721   (customize-set-variable 'gdb-memory-unit "w")
2722   (gdb-invalidate-memory))
2723
2724 (defun gdb-memory-unit-halfword ()
2725   "Set the unit size to halfwords (two bytes)."
2726   (interactive)
2727   (customize-set-variable 'gdb-memory-unit "h")
2728   (gdb-invalidate-memory))
2729
2730 (defun gdb-memory-unit-byte ()
2731   "Set the unit size to bytes."
2732   (interactive)
2733   (customize-set-variable 'gdb-memory-unit "b")
2734   (gdb-invalidate-memory))
2735
2736 (defvar gdb-memory-unit-map
2737   (let ((map (make-sparse-keymap)))
2738     (define-key map [header-line down-mouse-3] 'gdb-memory-unit-menu-1)
2739     map)
2740   "Keymap to select units in the header line.")
2741
2742 (defvar gdb-memory-unit-menu (make-sparse-keymap "Unit")
2743   "Menu of units in the header line.")
2744
2745 (define-key gdb-memory-unit-menu [giantwords]
2746   '(menu-item "Giant words" gdb-memory-unit-giant
2747               :button (:radio . (equal gdb-memory-unit "g"))))
2748 (define-key gdb-memory-unit-menu [words]
2749   '(menu-item "Words" gdb-memory-unit-word
2750               :button (:radio . (equal gdb-memory-unit "w"))))
2751 (define-key gdb-memory-unit-menu [halfwords]
2752   '(menu-item "Halfwords" gdb-memory-unit-halfword
2753               :button (:radio . (equal gdb-memory-unit "h"))))
2754 (define-key gdb-memory-unit-menu [bytes]
2755   '(menu-item "Bytes" gdb-memory-unit-byte
2756               :button (:radio . (equal gdb-memory-unit "b"))))
2757
2758 (defun gdb-memory-unit-menu (event)
2759   (interactive "@e")
2760   (x-popup-menu event gdb-memory-unit-menu))
2761
2762 (defun gdb-memory-unit-menu-1 (event)
2763   (interactive "e")
2764   (save-selected-window
2765     (select-window (posn-window (event-start event)))
2766     (let* ((selection (gdb-memory-unit-menu event))
2767            (binding (and selection (lookup-key gdb-memory-unit-menu
2768                                                (vector (car selection))))))
2769       (if binding (call-interactively binding)))))
2770
2771 ;;from make-mode-line-mouse-map
2772 (defun gdb-make-header-line-mouse-map (mouse function) "\
2773 Return a keymap with single entry for mouse key MOUSE on the header line.
2774 MOUSE is defined to run function FUNCTION with no args in the buffer
2775 corresponding to the mode line clicked."
2776   (let ((map (make-sparse-keymap)))
2777     (define-key map (vector 'header-line mouse) function)
2778     (define-key map (vector 'header-line 'down-mouse-1) 'ignore)
2779     map))
2780
2781 (defvar gdb-memory-font-lock-keywords
2782   '(;; <__function.name+n>
2783     ("<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>" (1 font-lock-function-name-face))
2784     )
2785   "Font lock keywords used in `gdb-memory-mode'.")
2786
2787 (defun gdb-memory-mode ()
2788   "Major mode for examining memory.
2789
2790 \\{gdb-memory-mode-map}"
2791   (kill-all-local-variables)
2792   (setq major-mode 'gdb-memory-mode)
2793   (setq mode-name "Memory")
2794   (setq buffer-read-only t)
2795   (use-local-map gdb-memory-mode-map)
2796   (setq header-line-format
2797         '(:eval
2798           (concat
2799            "Read address["
2800            (propertize
2801             "-"
2802             'face font-lock-warning-face
2803             'help-echo "mouse-1: decrement address"
2804             'mouse-face 'mode-line-highlight
2805             'local-map
2806             (gdb-make-header-line-mouse-map
2807              'mouse-1
2808              (lambda () (interactive)
2809                (let ((gdb-memory-address
2810                       ;; Let GDB do the arithmetic.
2811                       (concat
2812                        gdb-memory-address " - "
2813                        (number-to-string
2814                         (* gdb-memory-repeat-count
2815                            (cond ((string= gdb-memory-unit "b") 1)
2816                                  ((string= gdb-memory-unit "h") 2)
2817                                  ((string= gdb-memory-unit "w") 4)
2818                                  ((string= gdb-memory-unit "g") 8)))))))
2819                  (gdb-invalidate-memory)))))
2820            "|"
2821            (propertize "+"
2822                        'face font-lock-warning-face
2823                        'help-echo "mouse-1: increment address"
2824                        'mouse-face 'mode-line-highlight
2825                        'local-map (gdb-make-header-line-mouse-map
2826                                    'mouse-1
2827                                    (lambda () (interactive)
2828                                      (let ((gdb-memory-address nil))
2829                                        (gdb-invalidate-memory)))))
2830            "]: "
2831            (propertize gdb-memory-address
2832                        'face font-lock-warning-face
2833                        'help-echo "mouse-1: set memory address"
2834                        'mouse-face 'mode-line-highlight
2835                        'local-map (gdb-make-header-line-mouse-map
2836                                    'mouse-1
2837                                    #'gdb-memory-set-address))
2838            "  Repeat Count: "
2839            (propertize (number-to-string gdb-memory-repeat-count)
2840                        'face font-lock-warning-face
2841                        'help-echo "mouse-1: set repeat count"
2842                        'mouse-face 'mode-line-highlight
2843                        'local-map (gdb-make-header-line-mouse-map
2844                                    'mouse-1
2845                                    #'gdb-memory-set-repeat-count))
2846            "  Display Format: "
2847            (propertize gdb-memory-format
2848                        'face font-lock-warning-face
2849                        'help-echo "mouse-3: select display format"
2850                        'mouse-face 'mode-line-highlight
2851                        'local-map gdb-memory-format-map)
2852            "  Unit Size: "
2853            (propertize gdb-memory-unit
2854                        'face font-lock-warning-face
2855                        'help-echo "mouse-3: select unit size"
2856                        'mouse-face 'mode-line-highlight
2857                        'local-map gdb-memory-unit-map))))
2858   (set (make-local-variable 'font-lock-defaults)
2859        '(gdb-memory-font-lock-keywords))
2860   (run-mode-hooks 'gdb-memory-mode-hook)
2861   'gdb-invalidate-memory)
2862
2863 (defun gdb-memory-buffer-name ()
2864   (with-current-buffer gud-comint-buffer
2865     (concat "*memory of " (gdb-get-target-string) "*")))
2866
2867 (defun gdb-display-memory-buffer ()
2868   "Display memory contents."
2869   (interactive)
2870   (gdb-display-buffer
2871    (gdb-get-buffer-create 'gdb-memory-buffer) t))
2872
2873 (defun gdb-frame-memory-buffer ()
2874   "Display memory contents in a new frame."
2875   (interactive)
2876   (let* ((special-display-regexps (append special-display-regexps '(".*")))
2877          (special-display-frame-alist
2878           (cons '(left-fringe . 0)
2879                 (cons '(right-fringe . 0)
2880                       (cons '(width . 83) gdb-frame-parameters)))))
2881     (display-buffer (gdb-get-buffer-create 'gdb-memory-buffer))))
2882 \f
2883
2884 ;; Locals buffer.
2885 ;;
2886 (gdb-set-buffer-rules 'gdb-locals-buffer
2887                       'gdb-locals-buffer-name
2888                       'gdb-locals-mode)
2889
2890 (def-gdb-auto-update-trigger gdb-invalidate-locals
2891   (gdb-get-buffer 'gdb-locals-buffer)
2892   "server info locals\n"
2893   gdb-info-locals-handler)
2894
2895 (defvar gdb-locals-watch-map
2896   (let ((map (make-sparse-keymap)))
2897     (suppress-keymap map)
2898     (define-key map "\r" (lambda () (interactive)
2899                            (beginning-of-line)
2900                            (gud-watch)))
2901     (define-key map [mouse-2] (lambda (event) (interactive "e")
2902                                 (mouse-set-point event)
2903                                 (beginning-of-line)
2904                                 (gud-watch)))
2905     map)
2906   "Keymap to create watch expression of a complex data type local variable.")
2907
2908 (defconst gdb-struct-string
2909   (concat (propertize "[struct/union]"
2910                       'mouse-face 'highlight
2911                       'help-echo "mouse-2: create watch expression"
2912                       'local-map gdb-locals-watch-map) "\n"))
2913
2914 (defconst gdb-array-string
2915   (concat " " (propertize "[array]"
2916                           'mouse-face 'highlight
2917                           'help-echo "mouse-2: create watch expression"
2918                           'local-map gdb-locals-watch-map) "\n"))
2919
2920 ;; Abbreviate for arrays and structures.
2921 ;; These can be expanded using gud-display.
2922 (defun gdb-info-locals-handler ()
2923   (setq gdb-pending-triggers (delq 'gdb-invalidate-locals
2924                                   gdb-pending-triggers))
2925   (let ((buf (gdb-get-buffer 'gdb-partial-output-buffer)))
2926     (with-current-buffer buf
2927       (goto-char (point-min))
2928       (while (re-search-forward "^[ }].*\n" nil t)
2929         (replace-match "" nil nil))
2930       (goto-char (point-min))
2931       (while (re-search-forward "{\\(.*=.*\n\\|\n\\)" nil t)
2932         (replace-match gdb-struct-string nil nil))
2933       (goto-char (point-min))
2934       (while (re-search-forward "\\s-*{.*\n" nil t)
2935         (replace-match gdb-array-string nil nil))))
2936   (let ((buf (gdb-get-buffer 'gdb-locals-buffer)))
2937     (and buf
2938          (with-current-buffer buf
2939               (let* ((window (get-buffer-window buf 0))
2940                      (start (window-start window))
2941                      (p (window-point window))
2942                      (buffer-read-only nil))
2943                  (erase-buffer)
2944                  (insert-buffer-substring (gdb-get-buffer-create
2945                                            'gdb-partial-output-buffer))
2946                 (set-window-start window start)
2947                 (set-window-point window p))
2948 )))
2949   (run-hooks 'gdb-info-locals-hook))
2950
2951 (defvar gdb-locals-mode-map
2952   (let ((map (make-sparse-keymap)))
2953     (suppress-keymap map)
2954     (define-key map "q" 'kill-this-buffer)
2955      map))
2956
2957 (defun gdb-locals-mode ()
2958   "Major mode for gdb locals.
2959
2960 \\{gdb-locals-mode-map}"
2961   (kill-all-local-variables)
2962   (setq major-mode 'gdb-locals-mode)
2963   (setq mode-name (concat "Locals:" gdb-selected-frame))
2964   (setq buffer-read-only t)
2965   (gdb-thread-identification)
2966   (use-local-map gdb-locals-mode-map)
2967   (set (make-local-variable 'font-lock-defaults)
2968        '(gdb-locals-font-lock-keywords))
2969   (run-mode-hooks 'gdb-locals-mode-hook)
2970   (if (and (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
2971            (string-equal gdb-version "pre-6.4"))
2972       'gdb-invalidate-locals
2973     'gdb-invalidate-locals-1))
2974
2975 (defun gdb-locals-buffer-name ()
2976   (with-current-buffer gud-comint-buffer
2977     (concat "*locals of " (gdb-get-target-string) "*")))
2978
2979 (defun gdb-display-locals-buffer ()
2980   "Display local variables of current stack and their values."
2981   (interactive)
2982   (gdb-display-buffer
2983    (gdb-get-buffer-create 'gdb-locals-buffer) t))
2984
2985 (defun gdb-frame-locals-buffer ()
2986   "Display local variables of current stack and their values in a new frame."
2987   (interactive)
2988   (let ((special-display-regexps (append special-display-regexps '(".*")))
2989         (special-display-frame-alist gdb-frame-parameters))
2990     (display-buffer (gdb-get-buffer-create 'gdb-locals-buffer))))
2991 \f
2992
2993 ;;;; Window management
2994 (defun gdb-display-buffer (buf dedicated &optional size)
2995   (let ((answer (get-buffer-window buf 0))
2996         (must-split nil))
2997     (if answer
2998         (display-buffer buf nil 0)      ;Deiconify the frame if necessary.
2999       ;; The buffer is not yet displayed.
3000       (pop-to-buffer gud-comint-buffer) ;Select the right frame.
3001       (let ((window (get-lru-window)))
3002         (if (and window
3003                  (not (memq window `(,(get-buffer-window gud-comint-buffer)
3004                                      ,gdb-source-window))))
3005             (progn
3006               (set-window-buffer window buf)
3007               (setq answer window))
3008           (setq must-split t)))
3009       (if must-split
3010           (let* ((largest (get-largest-window))
3011                  (cur-size (window-height largest))
3012                  (new-size (and size (< size cur-size) (- cur-size size))))
3013             (setq answer (split-window largest new-size))
3014             (set-window-buffer answer buf)
3015             (set-window-dedicated-p answer dedicated)))
3016       answer)))
3017
3018 \f
3019 ;;; Shared keymap initialization:
3020
3021 (let ((menu (make-sparse-keymap "GDB-Windows")))
3022   (define-key gud-menu-map [displays]
3023     `(menu-item "GDB-Windows" ,menu
3024                 :help "Open a GDB-UI buffer in a new window."
3025                 :visible (memq gud-minor-mode '(gdbmi gdba))))
3026   (define-key menu [gdb] '("Gdb" . gdb-display-gdb-buffer))
3027   (define-key menu [threads] '("Threads" . gdb-display-threads-buffer))
3028   (define-key menu [inferior]
3029     '(menu-item "Separate IO" gdb-display-separate-io-buffer
3030                 :enable gdb-use-separate-io-buffer))
3031   (define-key menu [memory] '("Memory" . gdb-display-memory-buffer))
3032   (define-key menu [registers] '("Registers" . gdb-display-registers-buffer))
3033   (define-key menu [disassembly]
3034     '("Disassembly" . gdb-display-assembler-buffer))
3035   (define-key menu [breakpoints]
3036     '("Breakpoints" . gdb-display-breakpoints-buffer))
3037   (define-key menu [locals] '("Locals" . gdb-display-locals-buffer))
3038   (define-key menu [frames] '("Stack" . gdb-display-stack-buffer)))
3039
3040 (let ((menu (make-sparse-keymap "GDB-Frames")))
3041   (define-key gud-menu-map [frames]
3042     `(menu-item "GDB-Frames" ,menu
3043                 :help "Open a GDB-UI buffer in a new frame."
3044                 :visible (memq gud-minor-mode '(gdbmi gdba))))
3045   (define-key menu [gdb] '("Gdb" . gdb-frame-gdb-buffer))
3046   (define-key menu [threads] '("Threads" . gdb-frame-threads-buffer))
3047   (define-key menu [memory] '("Memory" . gdb-frame-memory-buffer))
3048   (define-key menu [inferior]
3049     '(menu-item "Separate IO" gdb-frame-separate-io-buffer
3050                 :enable gdb-use-separate-io-buffer))
3051   (define-key menu [registers] '("Registers" . gdb-frame-registers-buffer))
3052   (define-key menu [disassembly] '("Disassembly" . gdb-frame-assembler-buffer))
3053   (define-key menu [breakpoints]
3054     '("Breakpoints" . gdb-frame-breakpoints-buffer))
3055   (define-key menu [locals] '("Locals" . gdb-frame-locals-buffer))
3056   (define-key menu [frames] '("Stack" . gdb-frame-stack-buffer)))
3057
3058 (let ((menu (make-sparse-keymap "GDB-UI/MI")))
3059   (define-key gud-menu-map [ui]
3060     `(menu-item (if (eq gud-minor-mode 'gdba) "GDB-UI" "GDB-MI")
3061                 ,menu :visible (memq gud-minor-mode '(gdbmi gdba))))
3062   (define-key menu [gdb-customize]
3063   '(menu-item "Customize" (lambda () (interactive) (customize-group 'gdb))
3064               :help "Customize Gdb Graphical Mode options."))
3065   (define-key menu [gdb-find-source-frame]
3066   '(menu-item "Look For Source Frame" gdb-find-source-frame
3067               :visible (eq gud-minor-mode 'gdba)
3068               :help "Toggle looking for source frame further up call stack."
3069               :button (:toggle . gdb-find-source-frame)))
3070   (define-key menu [gdb-use-separate-io]
3071   '(menu-item "Separate IO" gdb-use-separate-io-buffer
3072               :visible (eq gud-minor-mode 'gdba)
3073               :help "Toggle separate IO for debugged program."
3074               :button (:toggle . gdb-use-separate-io-buffer)))
3075   (define-key menu [gdb-many-windows]
3076   '(menu-item "Display Other Windows" gdb-many-windows
3077               :help "Toggle display of locals, stack and breakpoint information"
3078               :button (:toggle . gdb-many-windows)))
3079   (define-key menu [gdb-restore-windows]
3080   '(menu-item "Restore Window Layout" gdb-restore-windows
3081               :help "Restore standard layout for debug session.")))
3082
3083 (defun gdb-frame-gdb-buffer ()
3084   "Display GUD buffer in a new frame."
3085   (interactive)
3086   (let ((special-display-regexps (append special-display-regexps '(".*")))
3087         (special-display-frame-alist
3088          (remove '(menu-bar-lines) (remove '(tool-bar-lines)
3089                                            gdb-frame-parameters)))
3090         (same-window-regexps nil))
3091     (display-buffer gud-comint-buffer)))
3092
3093 (defun gdb-display-gdb-buffer ()
3094   "Display GUD buffer."
3095   (interactive)
3096   (let ((same-window-regexps nil))
3097     (pop-to-buffer gud-comint-buffer)))
3098
3099 (defun gdb-set-window-buffer (name)
3100   (set-window-buffer (selected-window) (get-buffer name))
3101   (set-window-dedicated-p (selected-window) t))
3102
3103 (defun gdb-setup-windows ()
3104   "Layout the window pattern for `gdb-many-windows'."
3105   (gdb-display-locals-buffer)
3106   (gdb-display-stack-buffer)
3107   (delete-other-windows)
3108   (gdb-display-breakpoints-buffer)
3109   (delete-other-windows)
3110   ; Don't dedicate.
3111   (pop-to-buffer gud-comint-buffer)
3112   (split-window nil ( / ( * (window-height) 3) 4))
3113   (split-window nil ( / (window-height) 3))
3114   (split-window-horizontally)
3115   (other-window 1)
3116   (gdb-set-window-buffer (gdb-locals-buffer-name))
3117   (other-window 1)
3118   (switch-to-buffer
3119        (if gud-last-last-frame
3120            (gud-find-file (car gud-last-last-frame))
3121          (if gdb-main-file
3122              (gud-find-file gdb-main-file)
3123            ;; Put buffer list in window if we
3124            ;; can't find a source file.
3125            (list-buffers-noselect))))
3126   (setq gdb-source-window (selected-window))
3127   (when gdb-use-separate-io-buffer
3128     (split-window-horizontally)
3129     (other-window 1)
3130     (gdb-set-window-buffer
3131      (gdb-get-buffer-create 'gdb-inferior-io)))
3132   (other-window 1)
3133   (gdb-set-window-buffer (gdb-stack-buffer-name))
3134   (split-window-horizontally)
3135   (other-window 1)
3136   (gdb-set-window-buffer (gdb-breakpoints-buffer-name))
3137   (other-window 1))
3138
3139 (defun gdb-restore-windows ()
3140   "Restore the basic arrangement of windows used by gdba.
3141 This arrangement depends on the value of `gdb-many-windows'."
3142   (interactive)
3143   (pop-to-buffer gud-comint-buffer)     ;Select the right window and frame.
3144     (delete-other-windows)
3145   (if gdb-many-windows
3146       (gdb-setup-windows)
3147     (when (or gud-last-last-frame gdb-show-main)
3148       (split-window)
3149       (other-window 1)
3150       (switch-to-buffer
3151        (if gud-last-last-frame
3152            (gud-find-file (car gud-last-last-frame))
3153          (gud-find-file gdb-main-file)))
3154       (setq gdb-source-window (selected-window))
3155       (other-window 1))))
3156
3157 (defun gdb-reset ()
3158   "Exit a debugging session cleanly.
3159 Kills the gdb buffers, and resets variables and the source buffers."
3160   (dolist (buffer (buffer-list))
3161     (unless (eq buffer gud-comint-buffer)
3162       (with-current-buffer buffer
3163         (if (memq gud-minor-mode '(gdbmi gdba))
3164             (if (string-match "\\` ?\\*.+\\*\\'" (buffer-name))
3165                 (kill-buffer nil)
3166               (gdb-remove-breakpoint-icons (point-min) (point-max) t)
3167               (setq gud-minor-mode nil)
3168               (kill-local-variable 'tool-bar-map)
3169               (kill-local-variable 'gdb-define-alist))))))
3170   (setq gdb-overlay-arrow-position nil)
3171   (setq overlay-arrow-variable-list
3172         (delq 'gdb-overlay-arrow-position overlay-arrow-variable-list))
3173   (setq fringe-indicator-alist '((overlay-arrow . right-triangle)))
3174   (setq gdb-stack-position nil)
3175   (setq overlay-arrow-variable-list
3176         (delq 'gdb-stack-position overlay-arrow-variable-list))
3177   (if (boundp 'speedbar-frame) (speedbar-timer-fn))
3178   (setq gud-running nil)
3179   (setq gdb-active-process nil)
3180   (setq gdb-var-list nil)
3181   (remove-hook 'after-save-hook 'gdb-create-define-alist t))
3182
3183 (defun gdb-source-info ()
3184   "Find the source file where the program starts and displays it with related
3185 buffers."
3186   (goto-char (point-min))
3187   (if (and (search-forward "Located in " nil t)
3188            (looking-at "\\S-+"))
3189       (setq gdb-main-file (match-string 0)))
3190   (goto-char (point-min))
3191   (if (search-forward "Includes preprocessor macro info." nil t)
3192       (setq gdb-macro-info t))
3193   (if gdb-many-windows
3194       (gdb-setup-windows)
3195    (gdb-get-buffer-create 'gdb-breakpoints-buffer)
3196    (if gdb-show-main
3197        (let ((pop-up-windows t))
3198          (display-buffer (gud-find-file gdb-main-file)))))
3199  (setq gdb-ready t))
3200
3201 (defun gdb-get-location (bptno line flag)
3202   "Find the directory containing the relevant source file.
3203 Put in buffer and place breakpoint icon."
3204   (goto-char (point-min))
3205   (catch 'file-not-found
3206     (if (search-forward "Located in " nil t)
3207         (when (looking-at "\\S-+")
3208           (delete (cons bptno "File not found") gdb-location-alist)
3209           (push (cons bptno (match-string 0)) gdb-location-alist))
3210       (gdb-resync)
3211       (unless (assoc bptno gdb-location-alist)
3212         (push (cons bptno "File not found") gdb-location-alist)
3213         (message-box "Cannot find source file for breakpoint location.\n\
3214 Add directory to search path for source files using the GDB command, dir."))
3215       (throw 'file-not-found nil))
3216     (with-current-buffer
3217         (find-file-noselect (match-string 0))
3218       (save-current-buffer
3219         (set (make-local-variable 'gud-minor-mode) 'gdba)
3220         (set (make-local-variable 'tool-bar-map) gud-tool-bar-map))
3221       ;; only want one breakpoint icon at each location
3222       (save-excursion
3223         (goto-line (string-to-number line))
3224         (gdb-put-breakpoint-icon (eq flag ?y) bptno)))))
3225
3226 (add-hook 'find-file-hook 'gdb-find-file-hook)
3227
3228 (defun gdb-find-file-hook ()
3229   "Set up buffer for debugging if file is part of the source code
3230 of the current session."
3231   (if (and (buffer-name gud-comint-buffer)
3232            ;; in case gud or gdb-ui is just loaded
3233            gud-comint-buffer
3234            (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
3235                '(gdba gdbmi)))
3236       ;;Pre GDB 6.3 "info sources" doesn't give absolute file name.
3237       (if (member (if (string-equal gdb-version "pre-6.4")
3238                       (file-name-nondirectory buffer-file-name)
3239                     buffer-file-name)
3240                   gdb-source-file-list)
3241           (with-current-buffer (find-buffer-visiting buffer-file-name)
3242             (set (make-local-variable 'gud-minor-mode)
3243                  (buffer-local-value 'gud-minor-mode gud-comint-buffer))
3244             (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)))))
3245
3246 ;;from put-image
3247 (defun gdb-put-string (putstring pos &optional dprop &rest sprops)
3248   "Put string PUTSTRING in front of POS in the current buffer.
3249 PUTSTRING is displayed by putting an overlay into the current buffer with a
3250 `before-string' string that has a `display' property whose value is
3251 PUTSTRING."
3252   (let ((string (make-string 1 ?x))
3253         (buffer (current-buffer)))
3254     (setq putstring (copy-sequence putstring))
3255     (let ((overlay (make-overlay pos pos buffer))
3256           (prop (or dprop
3257                     (list (list 'margin 'left-margin) putstring))))
3258       (put-text-property 0 1 'display prop string)
3259       (if sprops
3260           (add-text-properties 0 1 sprops string))
3261       (overlay-put overlay 'put-break t)
3262       (overlay-put overlay 'before-string string))))
3263
3264 ;;from remove-images
3265 (defun gdb-remove-strings (start end &optional buffer)
3266   "Remove strings between START and END in BUFFER.
3267 Remove only strings that were put in BUFFER with calls to `gdb-put-string'.
3268 BUFFER nil or omitted means use the current buffer."
3269   (unless buffer
3270     (setq buffer (current-buffer)))
3271   (dolist (overlay (overlays-in start end))
3272     (when (overlay-get overlay 'put-break)
3273           (delete-overlay overlay))))
3274
3275 (defun gdb-put-breakpoint-icon (enabled bptno)
3276   (if (string-match "[0-9+]+\\." bptno)
3277       (setq enabled gdb-parent-bptno-enabled))
3278   (let ((start (- (line-beginning-position) 1))
3279         (end (+ (line-end-position) 1))
3280         (putstring (if enabled "B" "b"))
3281         (source-window (get-buffer-window (current-buffer) 0)))
3282     (add-text-properties
3283      0 1 '(help-echo "mouse-1: clear bkpt, mouse-3: enable/disable bkpt")
3284      putstring)
3285     (if enabled
3286         (add-text-properties
3287          0 1 `(gdb-bptno ,bptno gdb-enabled t) putstring)
3288       (add-text-properties
3289        0 1 `(gdb-bptno ,bptno gdb-enabled nil) putstring))
3290     (gdb-remove-breakpoint-icons start end)
3291     (if (display-images-p)
3292         (if (>= (or left-fringe-width
3293                     (if source-window (car (window-fringes source-window)))
3294                     gdb-buffer-fringe-width) 8)
3295             (gdb-put-string
3296              nil (1+ start)
3297              `(left-fringe breakpoint
3298                            ,(if enabled
3299                                 'breakpoint-enabled
3300                               'breakpoint-disabled))
3301              'gdb-bptno bptno
3302              'gdb-enabled enabled)
3303           (when (< left-margin-width 2)
3304             (save-current-buffer
3305               (setq left-margin-width 2)
3306               (if source-window
3307                   (set-window-margins
3308                    source-window
3309                    left-margin-width right-margin-width))))
3310           (put-image
3311            (if enabled
3312                (or breakpoint-enabled-icon
3313                    (setq breakpoint-enabled-icon
3314                          (find-image `((:type xpm :data
3315                                               ,breakpoint-xpm-data
3316                                               :ascent 100 :pointer hand)
3317                                        (:type pbm :data
3318                                               ,breakpoint-enabled-pbm-data
3319                                               :ascent 100 :pointer hand)))))
3320              (or breakpoint-disabled-icon
3321                  (setq breakpoint-disabled-icon
3322                        (find-image `((:type xpm :data
3323                                             ,breakpoint-xpm-data
3324                                             :conversion disabled
3325                                             :ascent 100 :pointer hand)
3326                                      (:type pbm :data
3327                                             ,breakpoint-disabled-pbm-data
3328                                             :ascent 100 :pointer hand))))))
3329            (+ start 1)
3330            putstring
3331            'left-margin))
3332       (when (< left-margin-width 2)
3333         (save-current-buffer
3334           (setq left-margin-width 2)
3335           (let ((window (get-buffer-window (current-buffer) 0)))
3336             (if window
3337                 (set-window-margins
3338                  window left-margin-width right-margin-width)))))
3339       (gdb-put-string
3340        (propertize putstring
3341                    'face (if enabled 'breakpoint-enabled 'breakpoint-disabled))
3342        (1+ start)))))
3343
3344 (defun gdb-remove-breakpoint-icons (start end &optional remove-margin)
3345   (gdb-remove-strings start end)
3346   (if (display-images-p)
3347       (remove-images start end))
3348   (when remove-margin
3349     (setq left-margin-width 0)
3350     (let ((window (get-buffer-window (current-buffer) 0)))
3351       (if window
3352           (set-window-margins
3353            window left-margin-width right-margin-width)))))
3354
3355 \f
3356 ;;
3357 ;; Assembler buffer.
3358 ;;
3359 (gdb-set-buffer-rules 'gdb-assembler-buffer
3360                       'gdb-assembler-buffer-name
3361                       'gdb-assembler-mode)
3362
3363 ;; We can't use def-gdb-auto-update-handler because we don't want to use
3364 ;; window-start but keep the overlay arrow/current line visible.
3365 (defun gdb-assembler-handler ()
3366   (setq gdb-pending-triggers
3367         (delq 'gdb-invalidate-assembler
3368               gdb-pending-triggers))
3369      (let ((buf (gdb-get-buffer 'gdb-assembler-buffer)))
3370        (and buf
3371             (with-current-buffer buf
3372               (let* ((window (get-buffer-window buf 0))
3373                      (p (window-point window))
3374                     (buffer-read-only nil))
3375                 (erase-buffer)
3376                 (insert-buffer-substring (gdb-get-buffer-create
3377                                           'gdb-partial-output-buffer))
3378                 (set-window-point window p)))))
3379      ;; put customisation here
3380      (gdb-assembler-custom))
3381
3382 (defun gdb-assembler-custom ()
3383   (let ((buffer (gdb-get-buffer 'gdb-assembler-buffer))
3384         (pos 1) (address) (flag) (bptno))
3385     (with-current-buffer buffer
3386       (save-excursion
3387         (if (not (equal gdb-pc-address "main"))
3388             (progn
3389               (goto-char (point-min))
3390               (if (and gdb-pc-address
3391                        (search-forward gdb-pc-address nil t))
3392                   (progn
3393                     (setq pos (point))
3394                     (beginning-of-line)
3395                     (setq fringe-indicator-alist
3396                           (if (string-equal gdb-frame-number "0")
3397                               nil
3398                             '((overlay-arrow . hollow-right-triangle))))
3399                     (or gdb-overlay-arrow-position
3400                         (setq gdb-overlay-arrow-position (make-marker)))
3401                     (set-marker gdb-overlay-arrow-position (point))))))
3402         ;; remove all breakpoint-icons in assembler buffer before updating.
3403         (gdb-remove-breakpoint-icons (point-min) (point-max))))
3404     (with-current-buffer (gdb-get-buffer 'gdb-breakpoints-buffer)
3405       (goto-char (point-min))
3406       (while (< (point) (- (point-max) 1))
3407         (forward-line 1)
3408         (when (looking-at
3409                "\\([0-9]+\\.?[0-9]*\\).*?\\s-+\\(.\\)\\s-+0x0*\\(\\S-+\\)")
3410           (setq bptno (match-string 1))
3411           (setq flag (char-after (match-beginning 2)))
3412           (setq address (match-string 3))
3413           (with-current-buffer buffer
3414             (save-excursion
3415               (goto-char (point-min))
3416               (if (search-forward address nil t)
3417                   (gdb-put-breakpoint-icon (eq flag ?y) bptno)))))))
3418     (if (not (equal gdb-pc-address "main"))
3419         (with-current-buffer buffer
3420           (set-window-point (get-buffer-window buffer 0) pos)))))
3421
3422 (defvar gdb-assembler-mode-map
3423   (let ((map (make-sparse-keymap)))
3424     (suppress-keymap map)
3425     (define-key map "q" 'kill-this-buffer)
3426      map))
3427
3428 (defvar gdb-assembler-font-lock-keywords
3429   '(;; <__function.name+n>
3430     ("<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>"
3431      (1 font-lock-function-name-face))
3432     ;; 0xNNNNNNNN <__function.name+n>: opcode
3433     ("^0x[0-9a-f]+ \\(<\\(\\(\\sw\\|[_.]\\)+\\)\\+[0-9]+>\\)?:[ \t]+\\(\\sw+\\)"
3434      (4 font-lock-keyword-face))
3435     ;; %register(at least i386)
3436     ("%\\sw+" . font-lock-variable-name-face)
3437     ("^\\(Dump of assembler code for function\\) \\(.+\\):"
3438      (1 font-lock-comment-face)
3439      (2 font-lock-function-name-face))
3440     ("^\\(End of assembler dump\\.\\)" . font-lock-comment-face))
3441   "Font lock keywords used in `gdb-assembler-mode'.")
3442
3443 (defun gdb-assembler-mode ()
3444   "Major mode for viewing code assembler.
3445
3446 \\{gdb-assembler-mode-map}"
3447   (kill-all-local-variables)
3448   (setq major-mode 'gdb-assembler-mode)
3449   (setq mode-name (concat "Machine:" gdb-selected-frame))
3450   (setq gdb-overlay-arrow-position nil)
3451   (add-to-list 'overlay-arrow-variable-list 'gdb-overlay-arrow-position)
3452   (setq fringes-outside-margins t)
3453   (setq buffer-read-only t)
3454   (gdb-thread-identification)
3455   (use-local-map gdb-assembler-mode-map)
3456   (gdb-invalidate-assembler)
3457   (set (make-local-variable 'font-lock-defaults)
3458        '(gdb-assembler-font-lock-keywords))
3459   (run-mode-hooks 'gdb-assembler-mode-hook)
3460   'gdb-invalidate-assembler)
3461
3462 (defun gdb-assembler-buffer-name ()
3463   (with-current-buffer gud-comint-buffer
3464     (concat "*disassembly of " (gdb-get-target-string) "*")))
3465
3466 (defun gdb-display-assembler-buffer ()
3467   "Display disassembly view."
3468   (interactive)
3469   (setq gdb-previous-frame nil)
3470   (gdb-display-buffer
3471    (gdb-get-buffer-create 'gdb-assembler-buffer) t))
3472
3473 (defun gdb-frame-assembler-buffer ()
3474   "Display disassembly view in a new frame."
3475   (interactive)
3476   (setq gdb-previous-frame nil)
3477   (let ((special-display-regexps (append special-display-regexps '(".*")))
3478         (special-display-frame-alist gdb-frame-parameters))
3479     (display-buffer (gdb-get-buffer-create 'gdb-assembler-buffer))))
3480
3481 ;; modified because if gdb-pc-address has changed value a new command
3482 ;; must be enqueued to update the buffer with the new output
3483 (defun gdb-invalidate-assembler (&optional ignored)
3484   (if (gdb-get-buffer 'gdb-assembler-buffer)
3485       (progn
3486         (unless (and gdb-selected-frame
3487                      (string-equal gdb-selected-frame gdb-previous-frame))
3488           (if (or (not (member 'gdb-invalidate-assembler
3489                                gdb-pending-triggers))
3490                   (not (string-equal gdb-pc-address
3491                                      gdb-previous-frame-address)))
3492           (progn
3493             ;; take previous disassemble command, if any, off the queue
3494             (with-current-buffer gud-comint-buffer
3495               (let ((queue gdb-input-queue))
3496                 (dolist (item queue)
3497                   (if (equal (cdr item) '(gdb-assembler-handler))
3498                       (setq gdb-input-queue
3499                             (delete item gdb-input-queue))))))
3500             (gdb-enqueue-input
3501              (list
3502               (concat gdb-server-prefix "disassemble "
3503                       (if (member gdb-pc-address '(nil "main")) nil "0x")
3504                            gdb-pc-address "\n")
3505                    'gdb-assembler-handler))
3506             (push 'gdb-invalidate-assembler gdb-pending-triggers)
3507             (setq gdb-previous-frame-address gdb-pc-address)
3508             (setq gdb-previous-frame gdb-selected-frame)))))))
3509
3510 (defun gdb-get-selected-frame ()
3511   (if (not (member 'gdb-get-selected-frame gdb-pending-triggers))
3512       (progn
3513         (gdb-enqueue-input
3514          (list (concat gdb-server-prefix "info frame\n") 'gdb-frame-handler))
3515         (push 'gdb-get-selected-frame
3516                gdb-pending-triggers))))
3517
3518 (defun gdb-frame-handler ()
3519   (setq gdb-pending-triggers
3520         (delq 'gdb-get-selected-frame gdb-pending-triggers))
3521   (goto-char (point-min))
3522   (when (re-search-forward
3523        "Stack level \\([0-9]+\\), frame at \\(0x[[:xdigit:]]+\\)" nil t)
3524     (setq gdb-frame-number (match-string 1))
3525     (setq gdb-frame-address (match-string 2)))
3526   (goto-char (point-min))
3527   (when (re-search-forward ".*=\\s-+0x0*\\(\\S-*\\)\\s-+in\\s-+\\(.*?\\)\
3528 \\(?: (\\(\\S-+?\\):[0-9]+?)\\)*; "
3529      nil t)
3530     (setq gdb-selected-frame (match-string 2))
3531     (if (gdb-get-buffer 'gdb-locals-buffer)
3532         (with-current-buffer (gdb-get-buffer 'gdb-locals-buffer)
3533           (setq mode-name (concat "Locals:" gdb-selected-frame))))
3534     (if (gdb-get-buffer 'gdb-assembler-buffer)
3535         (with-current-buffer (gdb-get-buffer 'gdb-assembler-buffer)
3536           (setq mode-name (concat "Machine:" gdb-selected-frame))))
3537     (setq gdb-pc-address (match-string 1))
3538     (if (and (match-string 3) gud-overlay-arrow-position)
3539       (let ((buffer (marker-buffer gud-overlay-arrow-position))
3540             (position (marker-position gud-overlay-arrow-position)))
3541         (when (and buffer
3542                    (string-equal (file-name-nondirectory
3543                                   (buffer-file-name buffer))
3544                                  (file-name-nondirectory (match-string 3))))
3545           (with-current-buffer buffer
3546             (setq fringe-indicator-alist
3547                   (if (string-equal gdb-frame-number "0")
3548                       nil
3549                     '((overlay-arrow . hollow-right-triangle))))
3550             (set-marker gud-overlay-arrow-position position))))))
3551   (goto-char (point-min))
3552   (if (re-search-forward " source language \\(\\S-+\\)\." nil t)
3553       (setq gdb-current-language (match-string 1)))
3554   (gdb-invalidate-assembler))
3555
3556 \f
3557 ;; Code specific to GDB 6.4
3558 (defconst gdb-source-file-regexp-1 "fullname=\"\\(.*?\\)\"")
3559
3560 (defun gdb-set-gud-minor-mode-existing-buffers-1 ()
3561   "Create list of source files for current GDB session.
3562 If buffers already exist for any of these files, `gud-minor-mode'
3563 is set in them."
3564   (goto-char (point-min))
3565   (while (re-search-forward gdb-source-file-regexp-1 nil t)
3566     (push (match-string 1) gdb-source-file-list))
3567   (dolist (buffer (buffer-list))
3568     (with-current-buffer buffer
3569       (when (member buffer-file-name gdb-source-file-list)
3570         (set (make-local-variable 'gud-minor-mode)
3571              (buffer-local-value 'gud-minor-mode gud-comint-buffer))
3572         (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
3573         (when gud-tooltip-mode
3574           (make-local-variable 'gdb-define-alist)
3575           (gdb-create-define-alist)
3576           (add-hook 'after-save-hook 'gdb-create-define-alist nil t)))))
3577   (gdb-force-mode-line-update
3578    (propertize "ready" 'face font-lock-variable-name-face)))
3579
3580 ; Uses "-var-list-children --all-values".  Needs GDB 6.4 onwards.
3581 (defun gdb-var-list-children-1 (varnum)
3582   (gdb-enqueue-input
3583    (list
3584     (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
3585         (concat "server interpreter mi \"-var-list-children --all-values \\\""
3586                 varnum "\\\"\"\n")
3587       (concat "-var-list-children --all-values \"" varnum "\"\n"))
3588     `(lambda () (gdb-var-list-children-handler-1 ,varnum)))))
3589
3590 (defconst gdb-var-list-children-regexp-1
3591   "child={.*?name=\"\\(.+?\\)\",.*?exp=\"\\(.+?\\)\",.*?\
3592 numchild=\"\\(.+?\\)\",.*?value=\\(\".*?\"\\)\
3593 \\(}\\|,.*?\\(type=\"\\(.+?\\)\"\\)?.*?}\\)")
3594
3595 (defun gdb-var-list-children-handler-1 (varnum)
3596   (goto-char (point-min))
3597   (let ((var-list nil))
3598     (catch 'child-already-watched
3599       (dolist (var gdb-var-list)
3600         (if (string-equal varnum (car var))
3601             (progn
3602               (push var var-list)
3603               (while (re-search-forward gdb-var-list-children-regexp-1 nil t)
3604                 (let ((varchild (list (match-string 1)
3605                                       (match-string 2)
3606                                       (match-string 3)
3607                                       (match-string 7)
3608                                       (read (match-string 4))
3609                                       nil)))
3610                   (if (assoc (car varchild) gdb-var-list)
3611                       (throw 'child-already-watched nil))
3612                   (push varchild var-list))))
3613           (push var var-list)))
3614       (setq gdb-var-list (nreverse var-list))))
3615   (gdb-speedbar-update))
3616
3617 ; Uses "-var-update --all-values".  Needs GDB 6.4 onwards.
3618 (defun gdb-var-update-1 ()
3619   (if (not (member 'gdb-var-update gdb-pending-triggers))
3620       (progn
3621         (gdb-enqueue-input
3622          (list
3623           (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
3624               "server interpreter mi \"-var-update --all-values *\"\n"
3625             "-var-update --all-values *\n")
3626           'gdb-var-update-handler-1))
3627         (push 'gdb-var-update gdb-pending-triggers))))
3628
3629 (defconst gdb-var-update-regexp-1
3630   "{.*?name=\"\\(.*?\\)\",.*?\\(?:value=\\(\".*?\"\\),\\)?.*?\
3631 in_scope=\"\\(.*?\\)\".*?}")
3632
3633 (defun gdb-var-update-handler-1 ()
3634   (dolist (var gdb-var-list)
3635     (setcar (nthcdr 5 var) nil))
3636   (goto-char (point-min))
3637   (while (re-search-forward gdb-var-update-regexp-1 nil t)
3638     (let* ((varnum (match-string 1))
3639            (var (assoc varnum gdb-var-list)))
3640       (when var
3641         (let ((match (match-string 3)))
3642           (cond ((string-equal match "false")
3643                  (if gdb-delete-out-of-scope
3644                      (gdb-var-delete-1 varnum)
3645                    (setcar (nthcdr 5 var) 'out-of-scope)))
3646                 ((string-equal match "true")
3647                  (setcar (nthcdr 5 var) 'changed)
3648                  (setcar (nthcdr 4 var)
3649                          (read (match-string 2))))
3650                 ((string-equal match "invalid")
3651                  (gdb-var-delete-1 varnum)))))))
3652       (setq gdb-pending-triggers
3653             (delq 'gdb-var-update gdb-pending-triggers))
3654       (gdb-speedbar-update))
3655
3656 ;; Registers buffer.
3657 ;;
3658 (gdb-set-buffer-rules 'gdb-registers-buffer
3659                       'gdb-registers-buffer-name
3660                       'gdb-registers-mode)
3661
3662 (def-gdb-auto-update-trigger gdb-invalidate-registers-1
3663   (gdb-get-buffer 'gdb-registers-buffer)
3664   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
3665       "server interpreter mi \"-data-list-register-values x\"\n"
3666     "-data-list-register-values x\n")
3667     gdb-data-list-register-values-handler)
3668
3669 (defconst gdb-data-list-register-values-regexp
3670   "{.*?number=\"\\(.*?\\)\",.*?value=\"\\(.*?\\)\".*?}")
3671
3672 (defun gdb-data-list-register-values-handler ()
3673   (setq gdb-pending-triggers (delq 'gdb-invalidate-registers-1
3674                                    gdb-pending-triggers))
3675   (goto-char (point-min))
3676   (if (re-search-forward gdb-error-regexp nil t)
3677       (let ((err (match-string 1)))
3678         (with-current-buffer (gdb-get-buffer 'gdb-registers-buffer)
3679           (let ((buffer-read-only nil))
3680             (erase-buffer)
3681             (put-text-property 0 (length err) 'face font-lock-warning-face err)
3682             (insert err)
3683             (goto-char (point-min)))))
3684     (let ((register-list (reverse gdb-register-names))
3685           (register nil) (register-string nil) (register-values nil))
3686       (goto-char (point-min))
3687       (while (re-search-forward gdb-data-list-register-values-regexp nil t)
3688         (setq register (pop register-list))
3689         (setq register-string (concat register "\t" (match-string 2) "\n"))
3690         (if (member (match-string 1) gdb-changed-registers)
3691             (put-text-property 0 (length register-string)
3692                                'face 'font-lock-warning-face
3693                                register-string))
3694         (setq register-values
3695               (concat register-values register-string)))
3696       (let ((buf (gdb-get-buffer 'gdb-registers-buffer)))
3697         (with-current-buffer buf
3698           (let* ((window (get-buffer-window buf 0))
3699                  (start (window-start window))
3700                  (p (window-point window))
3701                  (buffer-read-only nil))
3702             (erase-buffer)
3703             (insert register-values)
3704             (set-window-start window start)
3705             (set-window-point window p))))))
3706   (gdb-data-list-register-values-custom))
3707
3708 (defun gdb-data-list-register-values-custom ()
3709   (with-current-buffer (gdb-get-buffer 'gdb-registers-buffer)
3710     (save-excursion
3711       (let ((buffer-read-only nil)
3712             start end)
3713         (goto-char (point-min))
3714         (while (< (point) (point-max))
3715           (setq start (line-beginning-position))
3716           (setq end (line-end-position))
3717           (when (looking-at "^[^\t]+")
3718             (unless (string-equal (match-string 0) "No registers.")
3719               (put-text-property start (match-end 0)
3720                                  'face font-lock-variable-name-face)
3721               (add-text-properties start end
3722                                    '(help-echo "mouse-2: edit value"
3723                                      mouse-face highlight))))
3724           (forward-line 1))))))
3725
3726 ;; Needs GDB 6.4 onwards (used to fail with no stack).
3727 (defun gdb-get-changed-registers ()
3728   (if (and (gdb-get-buffer 'gdb-registers-buffer)
3729            (not (member 'gdb-get-changed-registers gdb-pending-triggers)))
3730       (progn
3731         (gdb-enqueue-input
3732          (list
3733           (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
3734               "server interpreter mi -data-list-changed-registers\n"
3735             "-data-list-changed-registers\n")
3736           'gdb-get-changed-registers-handler))
3737         (push 'gdb-get-changed-registers gdb-pending-triggers))))
3738
3739 (defconst gdb-data-list-register-names-regexp "\"\\(.*?\\)\"")
3740
3741 (defun gdb-get-changed-registers-handler ()
3742   (setq gdb-pending-triggers
3743         (delq 'gdb-get-changed-registers gdb-pending-triggers))
3744   (setq gdb-changed-registers nil)
3745   (goto-char (point-min))
3746   (while (re-search-forward gdb-data-list-register-names-regexp nil t)
3747     (push (match-string 1) gdb-changed-registers)))
3748 \f
3749
3750 ;; Locals buffer.
3751 ;;
3752 ;; uses "-stack-list-locals --simple-values". Needs GDB 6.1 onwards.
3753 (gdb-set-buffer-rules 'gdb-locals-buffer
3754                       'gdb-locals-buffer-name
3755                       'gdb-locals-mode)
3756
3757 (def-gdb-auto-update-trigger gdb-invalidate-locals-1
3758   (gdb-get-buffer 'gdb-locals-buffer)
3759   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
3760       "server interpreter mi -\"stack-list-locals --simple-values\"\n"
3761     "-stack-list-locals --simple-values\n")
3762   gdb-stack-list-locals-handler)
3763
3764 (defconst gdb-stack-list-locals-regexp
3765   "{.*?name=\"\\(.*?\\)\",.*?type=\"\\(.*?\\)\"")
3766
3767 (defvar gdb-locals-watch-map-1
3768   (let ((map (make-sparse-keymap)))
3769     (suppress-keymap map)
3770     (define-key map "\r" 'gud-watch)
3771     (define-key map [mouse-2] 'gud-watch)
3772     map)
3773   "Keymap to create watch expression of a complex data type local variable.")
3774
3775 (defvar gdb-edit-locals-map-1
3776   (let ((map (make-sparse-keymap)))
3777     (suppress-keymap map)
3778     (define-key map "\r" 'gdb-edit-locals-value)
3779     (define-key map [mouse-2] 'gdb-edit-locals-value)
3780     map)
3781   "Keymap to edit value of a simple data type local variable.")
3782
3783 (defun gdb-edit-locals-value (&optional event)
3784   "Assign a value to a variable displayed in the locals buffer."
3785   (interactive (list last-input-event))
3786   (save-excursion
3787     (if event (posn-set-point (event-end event)))
3788     (beginning-of-line)
3789     (let* ((var (current-word))
3790            (value (read-string (format "New value (%s): " var))))
3791       (gdb-enqueue-input
3792        (list (concat  gdb-server-prefix"set variable " var " = " value "\n")
3793              'ignore)))))
3794
3795 ;; Dont display values of arrays or structures.
3796 ;; These can be expanded using gud-watch.
3797 (defun gdb-stack-list-locals-handler ()
3798   (setq gdb-pending-triggers (delq 'gdb-invalidate-locals-1
3799                                   gdb-pending-triggers))
3800   (goto-char (point-min))
3801   (if (re-search-forward gdb-error-regexp nil t)
3802       (let ((err (match-string 1)))
3803         (with-current-buffer (gdb-get-buffer 'gdb-locals-buffer)
3804           (let ((buffer-read-only nil))
3805             (erase-buffer)
3806             (insert err)
3807             (goto-char (point-min)))))
3808     (let (local locals-list)
3809       (goto-char (point-min))
3810       (while (re-search-forward gdb-stack-list-locals-regexp nil t)
3811         (let ((local (list (match-string 1)
3812                            (match-string 2)
3813                            nil)))
3814           (if (looking-at ",value=\\(\".*\"\\).*?}")
3815               (setcar (nthcdr 2 local) (read (match-string 1))))
3816           (push local locals-list)))
3817       (let ((buf (gdb-get-buffer 'gdb-locals-buffer)))
3818         (and buf (with-current-buffer buf
3819                    (let* ((window (get-buffer-window buf 0))
3820                           (start (window-start window))
3821                           (p (window-point window))
3822                           (buffer-read-only nil) (name) (value))
3823                      (erase-buffer)
3824                      (dolist (local locals-list)
3825                        (setq name (car local))
3826                        (setq value (nth 2 local))
3827                        (if (or (not value)
3828                                (string-match "^\\0x" value))
3829                            (add-text-properties 0 (length name)
3830                                 `(mouse-face highlight
3831                                   help-echo "mouse-2: create watch expression"
3832                                   local-map ,gdb-locals-watch-map-1)
3833                                 name)
3834                          (add-text-properties 0 (length value)
3835                               `(mouse-face highlight
3836                                 help-echo "mouse-2: edit value"
3837                                 local-map ,gdb-edit-locals-map-1)
3838                               value))
3839                        (insert
3840                         (concat name "\t" (nth 1 local)
3841                                 "\t" value "\n")))
3842                      (set-window-start window start)
3843                      (set-window-point window p))))))))
3844
3845 (defun gdb-get-register-names ()
3846   "Create a list of register names."
3847   (goto-char (point-min))
3848   (setq gdb-register-names nil)
3849   (while (re-search-forward gdb-data-list-register-names-regexp nil t)
3850     (push (match-string 1) gdb-register-names)))
3851
3852 (provide 'gdb-ui)
3853
3854 ;; arch-tag: e9fb00c5-74ef-469f-a088-37384caae352
3855 ;;; gdb-ui.el ends here