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  Free Software Foundation, Inc.
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 2, or (at your option)
  14 ;; any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24 ;; Boston, MA 02110-1301, USA.
  25
  26 ;;; Commentary:
  27
  28 ;; This mode acts as a graphical user interface to GDB.  You can interact with
  29 ;; GDB through the GUD buffer in the usual way, but there are also further
  30 ;; buffers which control the execution and describe the state of your program.
  31 ;; It separates the input/output of your program from that of GDB, if
  32 ;; required, and watches expressions in the speedbar.  It also uses features of
  33 ;; Emacs 21 such as the fringe/display margin for breakpoints, and the toolbar
  34 ;; (see the GDB Graphical Interface section in the Emacs info manual).
  35
  36 ;; By default, M-x gdb will start the debugger. However, if you have customised
  37 ;; gud-gdb-command-name, then start it with M-x gdba.
  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, then see the
  43 ;; Annotations 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
  47 ;; it.  Some GDB/MI commands are used in this file through the CLI command
  48 ;; 'interpreter mi <mi-command>'.  A file called gdb-mi.el is included with
  49 ;; GDB (6.2 onwards) that uses GDB/MI as the primary interface to GDB.  It is
  50 ;; still under development and is part of a process to migrate Emacs from
  51 ;; annotations to GDB/MI.
  52
  53 ;; This mode SHOULD WORK WITH GDB 5.0 onwards but you will NEED GDB 6.0
  54 ;; onwards to use watch expressions.
  55
  56 ;;; Windows Platforms:
  57
  58 ;; If you are using Emacs and GDB on Windows you will need to flush the buffer
  59 ;; explicitly in your program if you want timely display of I/O in Emacs.
  60 ;; Alternatively you can make the output stream unbuffered, for example, by
  61 ;; using a macro:
  62
  63 ;;           #ifdef UNBUFFERED
  64 ;;           setvbuf (stdout, (char *) NULL, _IONBF, 0);
  65 ;;           #endif
  66
  67 ;; and compiling with -DUNBUFFERED while debugging.
  68
  69 ;;; Known Bugs:
  70
  71 ;; 1) Strings that are watched don't update in the speedbar when their
  72 ;; contents change.
  73 ;; 2) Watch expressions go out of scope when the inferior is re-run.
  74 ;; 3) Cannot handle multiple debug sessions.
  75
  76 ;;; TODO:
  77
  78 ;; 1) Use MI command -data-read-memory for memory window.
  79 ;; 2) Highlight changed register values (use MI commands
  80 ;;    -data-list-register-values and -data-list-changed-registers instead
  81 ;;    of 'info registers' after release of 22.1.
  82 ;; 3) Use tree-widget.el instead of the speedbar for watch-expressions?
  83 ;; 4) Mark breakpoint locations on scroll-bar of source buffer?
  84 ;; 5) After release of 22.1, use "-var-list-children --all-values"
  85 ;;    and "-stack-list-locals --simple-values" which need GDB 6.1 onwards.
  86 ;; 6) After release of 22.1, use "-var-update --all-values" which needs
  87 ;;    GDB 6.4 onwards.
  88 ;; 7) With gud-print and gud-pstar, print the variable name in the GUD
  89 ;;    buffer instead of the value's history number.
  90
  91 ;;; Code:
  92
  93 (require 'gud)
  94
  95 (defvar tool-bar-map)
  96
  97 (defvar gdb-frame-address "main" "Initialization for Assembler buffer.")
  98 (defvar gdb-previous-frame-address nil)
  99 (defvar gdb-memory-address "main")
 100 (defvar gdb-previous-frame nil)
 101 (defvar gdb-selected-frame nil)
 102 (defvar gdb-frame-number nil)
 103 (defvar gdb-current-language nil)
 104 (defvar gdb-var-list nil "List of variables in watch window.")
 105 (defvar gdb-var-changed nil "Non-nil means that `gdb-var-list' has changed.")
 106 (defvar gdb-main-file nil "Source file from which program execution begins.")
 107 (defvar gdb-overlay-arrow-position nil)
 108 (defvar gdb-server-prefix nil)
 109 (defvar gdb-flush-pending-output nil)
 110 (defvar gdb-location-alist nil
 111   "Alist of breakpoint numbers and full filenames.")
 112 (defvar gdb-find-file-unhook nil)
 113 (defvar gdb-active-process nil "GUD tooltips display variable values when t, \
 114 and #define directives otherwise.")
 115 (defvar gdb-error "Non-nil when GDB is reporting an error.")
 116 (defvar gdb-macro-info nil
 117   "Non-nil if GDB knows that the inferior includes preprocessor macro info.")
 118 (defvar gdb-buffer-fringe-width nil)
 119
 120 (defvar gdb-buffer-type nil
 121   "One of the symbols bound in `gdb-buffer-rules'.")
 122 (make-variable-buffer-local 'gdb-buffer-type)
 123
 124 (defvar gdb-input-queue ()
 125   "A list of gdb command objects.")
 126
 127 (defvar gdb-prompting nil
 128   "True when gdb is idle with no pending input.")
 129
 130 (defvar gdb-output-sink 'user
 131   "The disposition of the output of the current gdb command.
 132 Possible values are these symbols:
 133
 134     `user' -- gdb output should be copied to the GUD buffer
 135               for the user to see.
 136
 137     `inferior' -- gdb output should be copied to the inferior-io buffer.
 138
 139     `pre-emacs' -- output should be ignored util the post-prompt
 140                    annotation is received.  Then the output-sink
 141                    becomes:...
 142     `emacs' -- output should be collected in the partial-output-buffer
 143                for subsequent processing by a command.  This is the
 144                disposition of output generated by commands that
 145                gdb mode sends to gdb on its own behalf.
 146     `post-emacs' -- ignore output until the prompt annotation is
 147                     received, then go to USER disposition.
 148
 149 gdba (gdb-ui.el) uses all five values, gdbmi (gdb-mi.el) only two
 150 \(`user' and `emacs').")
 151
 152 (defvar gdb-current-item nil
 153   "The most recent command item sent to gdb.")
 154
 155 (defvar gdb-pending-triggers '()
 156   "A list of trigger functions that have run later than their output
 157 handlers.")
 158
 159 ;; end of gdb variables
 160
 161 ;;;###autoload
 162 (defun gdba (command-line)
 163   "Run gdb on program FILE in buffer *gud-FILE*.
 164 The directory containing FILE becomes the initial working directory
 165 and source-file directory for your debugger.
 166
 167 If `gdb-many-windows' is nil (the default value) then gdb just
 168 pops up the GUD buffer unless `gdb-show-main' is t.  In this case
 169 it starts with two windows: one displaying the GUD buffer and the
 170 other with the source file with the main routine of the inferior.
 171
 172 If `gdb-many-windows' is t, regardless of the value of
 173 `gdb-show-main', the layout below will appear unless
 174 `gdb-use-inferior-io-buffer' is nil when the source buffer
 175 occupies the full width of the frame.  Keybindings are given in
 176 relevant buffer.
 177
 178 Watch expressions appear in the speedbar/slowbar.
 179
 180 The following commands help control operation :
 181
 182 `gdb-many-windows'    - Toggle the number of windows gdb uses.
 183 `gdb-restore-windows' - To restore the window layout.
 184
 185 See Info node `(emacs)GDB Graphical Interface' for a more
 186 detailed description of this mode.
 187
 188
 189 +--------------------------------------------------------------+
 190 |                           GDB Toolbar                        |
 191 +-------------------------------+------------------------------+
 192 | GUD buffer (I/O of GDB)       | Locals buffer                |
 193 |                               |                              |
 194 |                               |                              |
 195 |                               |                              |
 196 +-------------------------------+------------------------------+
 197 | Source buffer                 | I/O buffer (of inferior)     |
 198 |                               | (comint-mode)                |
 199 |                               |                              |
 200 |                               |                              |
 201 |                               |                              |
 202 |                               |                              |
 203 |                               |                              |
 204 |                               |                              |
 205 +-------------------------------+------------------------------+
 206 | Stack buffer                  | Breakpoints buffer           |
 207 | RET      gdb-frames-select    | SPC    gdb-toggle-breakpoint |
 208 |                               | RET    gdb-goto-breakpoint   |
 209 |                               | d      gdb-delete-breakpoint |
 210 +-------------------------------+------------------------------+"
 211   ;;
 212   (interactive (list (gud-query-cmdline 'gdba)))
 213   ;;
 214   ;; Let's start with a basic gud-gdb buffer and then modify it a bit.
 215   (gdb command-line)
 216   (gdb-ann3))
 217
 218 (defvar gdb-debug-log nil)
 219
 220 ;;;###autoload
 221 (defcustom gdb-enable-debug-log nil
 222   "Non-nil means record the process input and output in `gdb-debug-log'."
 223   :type 'boolean
 224   :group 'gud
 225   :version "22.1")
 226
 227 (defcustom gdb-cpp-define-alist-program "gcc -E -dM -"
 228   "Shell command for generating a list of defined macros in a source file.
 229 This list is used to display the #define directive associated
 230 with an identifier as a tooltip.  It works in a debug session with
 231 GDB, when gud-tooltip-mode is t.
 232
 233 Set `gdb-cpp-define-alist-flags' for any include paths or
 234 predefined macros."
 235   :type 'string
 236   :group 'gud
 237   :version "22.1")
 238
 239 (defcustom gdb-cpp-define-alist-flags ""
 240   "Preprocessor flags for `gdb-cpp-define-alist-program'."
 241   :type 'string
 242   :group 'gud
 243   :version "22.1")
 244
 245 (defcustom gdb-show-main nil
 246   "Non-nil means display source file containing the main routine at startup.
 247 Also display the main routine in the disassembly buffer if present."
 248   :type 'boolean
 249   :group 'gud
 250   :version "22.1")
 251
 252 (defcustom gdb-use-inferior-io-buffer nil
 253   "Non-nil means display output from the inferior in a separate buffer."
 254   :type 'boolean
 255   :group 'gud
 256   :version "22.1")
 257
 258 (defun gdb-use-inferior-io-buffer (arg)
 259   "Toggle separate IO for inferior.
 260 With arg, use separate IO iff arg is positive."
 261   (interactive "P")
 262   (setq gdb-use-inferior-io-buffer
 263         (if (null arg)
 264             (not gdb-use-inferior-io-buffer)
 265           (> (prefix-numeric-value arg) 0)))
 266   (message (format "Separate inferior IO %sabled"
 267                    (if gdb-use-inferior-io-buffer "en" "dis")))
 268   (if (and gud-comint-buffer
 269            (buffer-name gud-comint-buffer))
 270       (condition-case nil
 271           (if gdb-use-inferior-io-buffer
 272               (gdb-restore-windows)
 273             (kill-buffer (gdb-inferior-io-name)))
 274         (error nil))))
 275
 276 (defvar gdb-define-alist nil "Alist of #define directives for GUD tooltips.")
 277
 278 (defun gdb-create-define-alist ()
 279   "Create an alist of #define directives for GUD tooltips."
 280   (let* ((file (buffer-file-name))
 281          (output
 282           (with-output-to-string
 283             (with-current-buffer standard-output
 284               (call-process shell-file-name
 285                             (if (file-exists-p file) file nil)
 286                             (list t nil) nil "-c"
 287                             (concat gdb-cpp-define-alist-program " "
 288                                     gdb-cpp-define-alist-flags)))))
 289         (define-list (split-string output "\n" t))
 290         (name))
 291     (setq gdb-define-alist nil)
 292     (dolist (define define-list)
 293       (setq name (nth 1 (split-string define "[( ]")))
 294       (push (cons name define) gdb-define-alist))))
 295
 296 (defun gdb-tooltip-print ()
 297   (tooltip-show
 298    (with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
 299      (let ((string (buffer-string)))
 300        ;; remove newline for gud-tooltip-echo-area
 301        (substring string 0 (- (length string) 1))))
 302    (or gud-tooltip-echo-area tooltip-use-echo-area)))
 303
 304 ;; If expr is a macro for a function don't print because of possible dangerous
 305 ;; side-effects. Also printing a function within a tooltip generates an
 306 ;; unexpected starting annotation (phase error).
 307 (defun gdb-tooltip-print-1 (expr)
 308   (with-current-buffer (gdb-get-buffer 'gdb-partial-output-buffer)
 309     (goto-char (point-min))
 310     (if (search-forward "expands to: " nil t)
 311         (unless (looking-at "\\S-+.*(.*).*")
 312           (gdb-enqueue-input
 313            (list  (concat gdb-server-prefix "print " expr "\n")
 314                   'gdb-tooltip-print))))))
 315
 316 (defun gdb-set-gud-minor-mode (buffer)
 317   "Set `gud-minor-mode' from find-file if appropriate."
 318   (goto-char (point-min))
 319   (unless (search-forward "No source file named " nil t)
 320     (condition-case nil
 321         (gdb-enqueue-input
 322          (list (concat gdb-server-prefix "info source\n")
 323                `(lambda () (gdb-set-gud-minor-mode-1 ,buffer))))
 324       (error (setq gdb-find-file-unhook t)))))
 325
 326 (defun gdb-set-gud-minor-mode-1 (buffer)
 327   (goto-char (point-min))
 328   (when (and (search-forward "Located in " nil t)
 329              (looking-at "\\S-+")
 330              (string-equal (buffer-file-name buffer)
 331                            (match-string 0)))
 332     (with-current-buffer buffer
 333       (set (make-local-variable 'gud-minor-mode) 'gdba)
 334       (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
 335       (when gud-tooltip-mode
 336         (make-local-variable 'gdb-define-alist)
 337         (gdb-create-define-alist)
 338         (add-hook 'after-save-hook 'gdb-create-define-alist nil t)))))
 339
 340 (defun gdb-set-gud-minor-mode-existing-buffers ()
 341   (dolist (buffer (buffer-list))
 342     (let ((file (buffer-file-name buffer)))
 343       (if file
 344         (progn
 345           (gdb-enqueue-input
 346            (list (concat gdb-server-prefix "list "
 347                          (file-name-nondirectory file) ":1\n")
 348                  `(lambda () (gdb-set-gud-minor-mode ,buffer)))))))))
 349
 350 (defun gdb-find-watch-expression ()
 351   (let* ((var (nth (- (line-number-at-pos (point)) 2) gdb-var-list))
 352          (varno (nth 1 var)) (expr))
 353     (string-match "\\(var[0-9]+\\)\\.\\(.*\\)" varno)
 354     (dolist (var1 gdb-var-list)
 355       (if (string-equal (nth 1 var1) (match-string 1 varno))
 356           (setq expr (concat (car var1) "." (match-string 2 varno)))))
 357     expr))
 358
 359 (defun gdb-ann3 ()
 360   (setq gdb-debug-log nil)
 361   (set (make-local-variable 'gud-minor-mode) 'gdba)
 362   (set (make-local-variable 'gud-marker-filter) 'gud-gdba-marker-filter)
 363   ;;
 364   (gud-def gud-break (if (not (string-match "Machine" mode-name))
 365                          (gud-call "break %f:%l" arg)
 366                        (save-excursion
 367                          (beginning-of-line)
 368                          (forward-char 2)
 369                          (gud-call "break *%a" arg)))
 370            "\C-b" "Set breakpoint at current line or address.")
 371   ;;
 372   (gud-def gud-remove (if (not (string-match "Machine" mode-name))
 373                           (gud-call "clear %f:%l" arg)
 374                         (save-excursion
 375                           (beginning-of-line)
 376                           (forward-char 2)
 377                           (gud-call "clear *%a" arg)))
 378            "\C-d" "Remove breakpoint at current line or address.")
 379   ;;
 380   (gud-def gud-until (if (not (string-match "Machine" mode-name))
 381                          (gud-call "until %f:%l" arg)
 382                        (save-excursion
 383                          (beginning-of-line)
 384                          (forward-char 2)
 385                          (gud-call "until *%a" arg)))
 386            "\C-u" "Continue to current line or address.")
 387   ;;
 388   (gud-def gud-go (gud-call (if gdb-active-process "continue" "run") arg)
 389            nil "Start or continue execution.")
 390
 391   ;; For debugging Emacs only.
 392   (gud-def gud-pp
 393            (gud-call
 394             (concat
 395              "pp1 " (if (eq (buffer-local-value
 396                              'major-mode (window-buffer)) 'speedbar-mode)
 397                         (gdb-find-watch-expression) "%e")) arg)
 398            nil   "Print the emacs s-expression.")
 399
 400   (define-key gud-minor-mode-map [left-margin mouse-1]
 401     'gdb-mouse-set-clear-breakpoint)
 402   (define-key gud-minor-mode-map [left-fringe mouse-1]
 403     'gdb-mouse-set-clear-breakpoint)
 404   (define-key gud-minor-mode-map [left-fringe mouse-2]
 405     'gdb-mouse-until)
 406   (define-key gud-minor-mode-map [left-fringe drag-mouse-1]
 407     'gdb-mouse-until)
 408   (define-key gud-minor-mode-map [left-margin mouse-2]
 409     'gdb-mouse-until)
 410   (define-key gud-minor-mode-map [left-margin mouse-3]
 411     'gdb-mouse-toggle-breakpoint-margin)
 412   (define-key gud-minor-mode-map [left-fringe mouse-3]
 413     'gdb-mouse-toggle-breakpoint-fringe)
 414
 415   (setq comint-input-sender 'gdb-send)
 416   ;;
 417   ;; (re-)initialize
 418   (setq gdb-frame-address (if gdb-show-main "main" nil))
 419   (setq gdb-previous-frame-address nil
 420         gdb-memory-address "main"
 421         gdb-previous-frame nil
 422         gdb-selected-frame nil
 423         gdb-current-language nil
 424         gdb-frame-number nil
 425         gdb-var-list nil
 426         gdb-var-changed nil
 427         gdb-first-prompt nil
 428         gdb-prompting nil
 429         gdb-input-queue nil
 430         gdb-current-item nil
 431         gdb-pending-triggers nil
 432         gdb-output-sink 'user
 433         gdb-server-prefix "server "
 434         gdb-flush-pending-output nil
 435         gdb-location-alist nil
 436         gdb-find-file-unhook nil
 437         gdb-error nil
 438         gdb-macro-info nil
 439         gdb-buffer-fringe-width (car (window-fringes)))
 440   ;;
 441   (setq gdb-buffer-type 'gdba)
 442   ;;
 443   (if gdb-use-inferior-io-buffer (gdb-clear-inferior-io))
 444   ;;
 445   (if (eq window-system 'w32)
 446       (gdb-enqueue-input (list "set new-console off\n" 'ignore)))
 447   (gdb-enqueue-input (list "set height 0\n" 'ignore))
 448   (gdb-enqueue-input (list "set width 0\n" 'ignore))
 449   ;; find source file and compilation directory here
 450   (gdb-enqueue-input (list "server list main\n"   'ignore))   ; C program
 451   (gdb-enqueue-input (list "server list MAIN__\n" 'ignore))   ; Fortran program
 452   (gdb-enqueue-input (list "server info source\n" 'gdb-source-info))
 453   ;;
 454   (gdb-set-gud-minor-mode-existing-buffers)
 455   (run-hooks 'gdba-mode-hook))
 456
 457 (defun gdb-mouse-until (event)
 458   "Execute source lines by dragging the overlay arrow (fringe) with the mouse."
 459   (interactive "e")
 460   (if gud-overlay-arrow-position
 461       (let ((start (event-start event))
 462             (end  (event-end event))
 463             (buffer (marker-buffer gud-overlay-arrow-position)) (line))
 464         (if (not (string-match "Machine" mode-name))
 465             (if (equal buffer (window-buffer (posn-window end)))
 466                 (with-current-buffer buffer
 467                   (when (or (equal start end)
 468                             (equal (posn-point start)
 469                                    (marker-position
 470                                     gud-overlay-arrow-position)))
 471                     (setq line (line-number-at-pos (posn-point end)))
 472                     (gud-call (concat "until " (number-to-string line))))))
 473           (if (equal (marker-buffer gdb-overlay-arrow-position)
 474                      (window-buffer (posn-window end)))
 475               (when (or (equal start end)
 476                         (equal (posn-point start)
 477                                (marker-position
 478                                 gdb-overlay-arrow-position)))
 479                 (save-excursion
 480                   (goto-line (line-number-at-pos (posn-point end)))
 481                   (forward-char 2)
 482                   (gud-call (concat "until *%a")))))))))
 483
 484 (defcustom gdb-speedbar-auto-raise t
 485   "If non-nil raise speedbar every time display of watch expressions is\
 486  updated."
 487   :type 'boolean
 488   :group 'gud
 489   :version "22.1")
 490
 491 (defun gdb-speedbar-auto-raise (arg)
 492   "Toggle automatic raising of the speedbar for watch expressions."
 493   (interactive "P")
 494   (setq gdb-speedbar-auto-raise
 495         (if (null arg)
 496             (not gdb-speedbar-auto-raise)
 497           (> (prefix-numeric-value arg) 0)))
 498   (message (format "Auto raising %sabled"
 499                    (if gdb-speedbar-auto-raise "en" "dis"))))
 500
 501 (defcustom gdb-use-colon-colon-notation nil
 502   "If non-nil use FUN::VAR format to display variables in the speedbar."
 503   :type 'boolean
 504   :group 'gud
 505   :version "22.1")
 506
 507 (defun gud-watch ()
 508   "Watch expression at point."
 509   (interactive)
 510   (require 'tooltip)
 511   (save-selected-window
 512     (let ((expr (tooltip-identifier-from-point (point))))
 513       (if (and (string-equal gdb-current-language "c")
 514                gdb-use-colon-colon-notation gdb-selected-frame)
 515           (setq expr (concat gdb-selected-frame "::" expr)))
 516       (catch 'already-watched
 517         (dolist (var gdb-var-list)
 518           (if (string-equal expr (car var)) (throw 'already-watched nil)))
 519         (set-text-properties 0 (length expr) nil expr)
 520         (gdb-enqueue-input
 521          (list
 522           (if (eq gud-minor-mode 'gdba)
 523               (concat "server interpreter mi \"-var-create - * "  expr "\"\n")
 524             (concat"-var-create - * "  expr "\n"))
 525           `(lambda () (gdb-var-create-handler ,expr))))))))
 526
 527 (defconst gdb-var-create-regexp
 528   "name=\"\\(.*?\\)\",numchild=\"\\(.*?\\)\",type=\"\\(.*?\\)\"")
 529
 530 (defun gdb-var-create-handler (expr)
 531   (goto-char (point-min))
 532   (if (re-search-forward gdb-var-create-regexp nil t)
 533       (let ((var (list expr
 534                        (match-string 1)
 535                        (match-string 2)
 536                        (match-string 3)
 537                        nil nil)))
 538         (push var gdb-var-list)
 539         (speedbar 1)
 540         (unless (string-equal
 541                  speedbar-initial-expansion-list-name "GUD")
 542           (speedbar-change-initial-expansion-list "GUD"))
 543         (gdb-enqueue-input
 544          (list
 545           (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
 546                   'gdba)
 547               (concat "server interpreter mi \"-var-evaluate-expression "
 548                       (nth 1 var) "\"\n")
 549             (concat "-var-evaluate-expression " (nth 1 var) "\n"))
 550           `(lambda () (gdb-var-evaluate-expression-handler
 551                        ,(nth 1 var) nil))))
 552         (setq gdb-var-changed t))
 553     (if (search-forward "Undefined command" nil t)
 554         (message-box "Watching expressions requires gdb 6.0 onwards")
 555       (message "No symbol \"%s\" in current context." expr))))
 556
 557 (defun gdb-var-evaluate-expression-handler (varnum changed)
 558   (goto-char (point-min))
 559   (re-search-forward ".*value=\\(\".*\"\\)" nil t)
 560   (catch 'var-found
 561     (let ((num 0))
 562       (dolist (var gdb-var-list)
 563         (if (string-equal varnum (cadr var))
 564             (progn
 565               (if changed (setcar (nthcdr 5 var) t))
 566               (setcar (nthcdr 4 var) (read (match-string 1)))
 567               (setcar (nthcdr num gdb-var-list) var)
 568               (throw 'var-found nil)))
 569         (setq num (+ num 1)))))
 570   (setq gdb-var-changed t))
 571
 572 (defun gdb-var-list-children (varnum)
 573   (gdb-enqueue-input
 574    (list (concat "server interpreter mi \"-var-list-children " varnum "\"\n")
 575          `(lambda () (gdb-var-list-children-handler ,varnum)))))
 576
 577 (defconst gdb-var-list-children-regexp
 578  "name=\"\\(.*?\\)\",exp=\"\\(.*?\\)\",numchild=\"\\(.*?\\)\",\
 579 type=\"\\(.*?\\)\"")
 580
 581 (defun gdb-var-list-children-handler (varnum)
 582   (goto-char (point-min))
 583   (let ((var-list nil))
 584     (catch 'child-already-watched
 585       (dolist (var gdb-var-list)
 586         (if (string-equal varnum (cadr var))
 587             (progn
 588               (push var var-list)
 589               (while (re-search-forward gdb-var-list-children-regexp nil t)
 590                 (let ((varchild (list (match-string 2)
 591                                       (match-string 1)
 592                                       (match-string 3)
 593                                       (match-string 4)
 594                                       nil nil)))
 595                   (dolist (var1 gdb-var-list)
 596                     (if (string-equal (cadr var1) (cadr varchild))
 597                         (throw 'child-already-watched nil)))
 598                   (push varchild var-list)
 599                   (gdb-enqueue-input
 600                    (list
 601                     (concat
 602                      "server interpreter mi \"-var-evaluate-expression "
 603                      (nth 1 varchild) "\"\n")
 604                     `(lambda () (gdb-var-evaluate-expression-handler
 605                                  ,(nth 1 varchild) nil)))))))
 606           (push var var-list)))
 607       (setq gdb-var-list (nreverse var-list)))))
 608
 609 (defun gdb-var-update ()
 610   (when (not (member 'gdb-var-update gdb-pending-triggers))
 611     (gdb-enqueue-input
 612      (list "server interpreter mi \"-var-update *\"\n"
 613            'gdb-var-update-handler))
 614     (push 'gdb-var-update gdb-pending-triggers)))
 615
 616 (defconst gdb-var-update-regexp "name=\"\\(.*?\\)\"")
 617
 618 (defun gdb-var-update-handler ()
 619   (goto-char (point-min))
 620   (while (re-search-forward gdb-var-update-regexp nil t)
 621     (catch 'var-found-1
 622       (let ((varnum (match-string 1)))
 623         (dolist (var gdb-var-list)
 624           (gdb-enqueue-input
 625            (list
 626             (concat "server interpreter mi \"-var-evaluate-expression "
 627                     varnum "\"\n")
 628             `(lambda () (gdb-var-evaluate-expression-handler ,varnum t))))
 629           (throw 'var-found-1 nil)))))
 630   (setq gdb-pending-triggers
 631         (delq 'gdb-var-update gdb-pending-triggers))
 632   (when (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame))
 633     ;; Dummy command to update speedbar at right time.
 634     (gdb-enqueue-input (list "server pwd\n" 'gdb-speedbar-timer-fn))
 635     ;; Keep gdb-pending-triggers non-nil till end.
 636     (push 'gdb-speedbar-timer gdb-pending-triggers)))
 637
 638 (defun gdb-speedbar-timer-fn ()
 639   (setq gdb-pending-triggers
 640         (delq 'gdb-speedbar-timer gdb-pending-triggers))
 641   (with-current-buffer gud-comint-buffer
 642     (speedbar-timer-fn)))
 643
 644 (defun gdb-var-delete ()
 645   "Delete watch expression at point from the speedbar."
 646   (interactive)
 647   (if (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
 648             '(gdbmi gdba))
 649       (let ((text (speedbar-line-text)))
 650         (string-match "\\(\\S-+\\)" text)
 651         (let* ((expr (match-string 1 text))
 652                (var (assoc expr gdb-var-list))
 653                (varnum (cadr var)))
 654           (unless (string-match "\\." varnum)
 655             (gdb-enqueue-input
 656              (list
 657               (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
 658                       'gdba)
 659                   (concat "server interpreter mi \"-var-delete " varnum "\"\n")
 660                 (concat "-var-delete " varnum "\n"))
 661                    'ignore))
 662             (setq gdb-var-list (delq var gdb-var-list))
 663             (dolist (varchild gdb-var-list)
 664               (if (string-match (concat (nth 1 var) "\\.") (nth 1 varchild))
 665                   (setq gdb-var-list (delq varchild gdb-var-list))))
 666             (setq gdb-var-changed t))))))
 667
 668 (defun gdb-edit-value (text token indent)
 669   "Assign a value to a variable displayed in the speedbar."
 670   (let* ((var (nth (- (count-lines (point-min) (point)) 2) gdb-var-list))
 671          (varnum (cadr var)) (value))
 672     (setq value (read-string "New value: "))
 673     (gdb-enqueue-input
 674      (list
 675       (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
 676           (concat "server interpreter mi \"-var-assign "
 677                   varnum " " value "\"\n")
 678         (concat "-var-assign " varnum " " value "\n"))
 679            'ignore))))
 680
 681 (defcustom gdb-show-changed-values t
 682   "If non-nil highlight values that have recently changed in the speedbar.
 683 The highlighting is done with `font-lock-warning-face'."
 684   :type 'boolean
 685   :group 'gud
 686   :version "22.1")
 687
 688 (defun gdb-speedbar-expand-node (text token indent)
 689   "Expand the node the user clicked on.
 690 TEXT is the text of the button we clicked on, a + or - item.
 691 TOKEN is data related to this node.
 692 INDENT is the current indentation depth."
 693   (cond ((string-match "+" text)        ;expand this node
 694          (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
 695              (gdb-var-list-children token)
 696            (progn
 697              (gdbmi-var-update)
 698              (gdbmi-var-list-children token))))
 699         ((string-match "-" text)        ;contract this node
 700          (dolist (var gdb-var-list)
 701            (if (string-match (concat token "\\.") (nth 1 var))
 702                (setq gdb-var-list (delq var gdb-var-list))))
 703          (setq gdb-var-changed t)
 704          (with-current-buffer gud-comint-buffer
 705            (speedbar-timer-fn)))))
 706
 707 (defun gdb-get-target-string ()
 708   (with-current-buffer gud-comint-buffer
 709     gud-target-name))
 710 \f
 711
 712 ;;
 713 ;; gdb buffers.
 714 ;;
 715 ;; Each buffer has a TYPE -- a symbol that identifies the function
 716 ;; of that particular buffer.
 717 ;;
 718 ;; The usual gdb interaction buffer is given the type `gdba' and
 719 ;; is constructed specially.
 720 ;;
 721 ;; Others are constructed by gdb-get-create-buffer and
 722 ;; named according to the rules set forth in the gdb-buffer-rules-assoc
 723
 724 (defvar gdb-buffer-rules-assoc '())
 725
 726 (defun gdb-get-buffer (key)
 727   "Return the gdb buffer tagged with type KEY.
 728 The key should be one of the cars in `gdb-buffer-rules-assoc'."
 729   (save-excursion
 730     (gdb-look-for-tagged-buffer key (buffer-list))))
 731
 732 (defun gdb-get-create-buffer (key)
 733   "Create a new gdb  buffer of the type specified by KEY.
 734 The key should be one of the cars in `gdb-buffer-rules-assoc'."
 735   (or (gdb-get-buffer key)
 736       (let* ((rules (assoc key gdb-buffer-rules-assoc))
 737              (name (funcall (gdb-rules-name-maker rules)))
 738              (new (get-buffer-create name)))
 739         (with-current-buffer new
 740           (let ((trigger))
 741             (if (cdr (cdr rules))
 742                 (setq trigger (funcall (car (cdr (cdr rules))))))
 743             (setq gdb-buffer-type key)
 744             (set (make-local-variable 'gud-minor-mode)
 745                  (buffer-local-value 'gud-minor-mode gud-comint-buffer))
 746             (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
 747             (if trigger (funcall trigger)))
 748           new))))
 749
 750 (defun gdb-rules-name-maker (rules) (car (cdr rules)))
 751
 752 (defun gdb-look-for-tagged-buffer (key bufs)
 753   (let ((retval nil))
 754     (while (and (not retval) bufs)
 755       (set-buffer (car bufs))
 756       (if (eq gdb-buffer-type key)
 757           (setq retval (car bufs)))
 758       (setq bufs (cdr bufs)))
 759     retval))
 760
 761 ;;
 762 ;; This assoc maps buffer type symbols to rules.  Each rule is a list of
 763 ;; at least one and possible more functions.  The functions have these
 764 ;; roles in defining a buffer type:
 765 ;;
 766 ;;     NAME - Return a name for this  buffer type.
 767 ;;
 768 ;; The remaining function(s) are optional:
 769 ;;
 770 ;;     MODE - called in a new buffer with no arguments, should establish
 771 ;;            the proper mode for the buffer.
 772 ;;
 773
 774 (defun gdb-set-buffer-rules (buffer-type &rest rules)
 775   (let ((binding (assoc buffer-type gdb-buffer-rules-assoc)))
 776     (if binding
 777         (setcdr binding rules)
 778       (push (cons buffer-type rules)
 779             gdb-buffer-rules-assoc))))
 780
 781 ;; GUD buffers are an exception to the rules
 782 (gdb-set-buffer-rules 'gdba 'error)
 783
 784 ;;
 785 ;; Partial-output buffer : This accumulates output from a command executed on
 786 ;; behalf of emacs (rather than the user).
 787 ;;
 788 (gdb-set-buffer-rules 'gdb-partial-output-buffer
 789                       'gdb-partial-output-name)
 790
 791 (defun gdb-partial-output-name ()
 792   (concat "*partial-output-"
 793           (gdb-get-target-string)
 794           "*"))
 795
 796 \f
 797 (gdb-set-buffer-rules 'gdb-inferior-io
 798                       'gdb-inferior-io-name
 799                       'gdb-inferior-io-mode)
 800
 801 (defun gdb-inferior-io-name ()
 802   (concat "*input/output of "
 803           (gdb-get-target-string)
 804           "*"))
 805
 806 (defun gdb-display-inferior-io-buffer ()
 807   "Display IO of inferior in a separate window."
 808   (interactive)
 809   (if gdb-use-inferior-io-buffer
 810       (gdb-display-buffer
 811        (gdb-get-create-buffer 'gdb-inferior-io))))
 812
 813 (defconst gdb-frame-parameters
 814   '((height . 14) (width . 80)
 815     (unsplittable . t)
 816     (tool-bar-lines . nil)
 817     (menu-bar-lines . nil)
 818     (minibuffer . nil)))
 819
 820 (defun gdb-frame-inferior-io-buffer ()
 821   "Display IO of inferior in a new frame."
 822   (interactive)
 823   (if gdb-use-inferior-io-buffer
 824       (let ((special-display-regexps (append special-display-regexps '(".*")))
 825             (special-display-frame-alist gdb-frame-parameters))
 826         (display-buffer (gdb-get-create-buffer 'gdb-inferior-io)))))
 827
 828 (defvar gdb-inferior-io-mode-map
 829   (let ((map (make-sparse-keymap)))
 830     (define-key map "\C-c\C-c" 'gdb-inferior-io-interrupt)
 831     (define-key map "\C-c\C-z" 'gdb-inferior-io-stop)
 832     (define-key map "\C-c\C-\\" 'gdb-inferior-io-quit)
 833     (define-key map "\C-c\C-d" 'gdb-inferior-io-eof)
 834     (define-key map "\C-d" 'gdb-inferior-io-eof)
 835     map))
 836
 837 (define-derived-mode gdb-inferior-io-mode comint-mode "Inferior I/O"
 838   "Major mode for gdb inferior-io."
 839   :syntax-table nil :abbrev-table nil
 840   ;; We want to use comint because it has various nifty and familiar
 841   ;; features.  We don't need a process, but comint wants one, so create
 842   ;; a dummy one.
 843   (make-comint-in-buffer
 844    (substring (buffer-name) 1 (- (length (buffer-name)) 1))
 845    (current-buffer) "hexl")
 846   (setq comint-input-sender 'gdb-inferior-io-sender))
 847
 848 (defun gdb-inferior-io-sender (proc string)
 849   ;; PROC is the pseudo-process created to satisfy comint.
 850   (with-current-buffer (process-buffer proc)
 851     (setq proc (get-buffer-process gud-comint-buffer))
 852     (process-send-string proc string)
 853     (process-send-string proc "\n")))
 854
 855 (defun gdb-inferior-io-interrupt ()
 856   "Interrupt the program being debugged."
 857   (interactive)
 858   (interrupt-process
 859    (get-buffer-process gud-comint-buffer) comint-ptyp))
 860
 861 (defun gdb-inferior-io-quit ()
 862   "Send quit signal to the program being debugged."
 863   (interactive)
 864   (quit-process
 865    (get-buffer-process gud-comint-buffer) comint-ptyp))
 866
 867 (defun gdb-inferior-io-stop ()
 868   "Stop the program being debugged."
 869   (interactive)
 870   (stop-process
 871    (get-buffer-process gud-comint-buffer) comint-ptyp))
 872
 873 (defun gdb-inferior-io-eof ()
 874   "Send end-of-file to the program being debugged."
 875   (interactive)
 876   (process-send-eof
 877    (get-buffer-process gud-comint-buffer)))
 878 \f
 879
 880 ;;
 881 ;; gdb communications
 882 ;;
 883
 884 ;; INPUT: things sent to gdb
 885 ;;
 886 ;; The queues are lists.  Each element is either a string (indicating user or
 887 ;; user-like input) or a list of the form:
 888 ;;
 889 ;;    (INPUT-STRING  HANDLER-FN)
 890 ;;
 891 ;; The handler function will be called from the partial-output buffer when the
 892 ;; command completes.  This is the way to write commands which invoke gdb
 893 ;; commands autonomously.
 894 ;;
 895 ;; These lists are consumed tail first.
 896 ;;
 897
 898 (defun gdb-send (proc string)
 899   "A comint send filter for gdb.
 900 This filter may simply queue input for a later time."
 901   (with-current-buffer gud-comint-buffer
 902     (let ((inhibit-read-only t))
 903       (remove-text-properties (point-min) (point-max) '(face))))
 904   (let ((item (concat string "\n")))
 905     (if gud-running
 906       (progn
 907         (if gdb-enable-debug-log (push (cons 'send item) gdb-debug-log))
 908         (process-send-string proc item))
 909       (gdb-enqueue-input item))))
 910
 911 ;; Note: Stuff enqueued here will be sent to the next prompt, even if it
 912 ;; is a query, or other non-top-level prompt.
 913
 914 (defun gdb-enqueue-input (item)
 915   (if gdb-prompting
 916       (progn
 917         (gdb-send-item item)
 918         (setq gdb-prompting nil))
 919     (push item gdb-input-queue)))
 920
 921 (defun gdb-dequeue-input ()
 922   (let ((queue gdb-input-queue))
 923     (and queue
 924          (let ((last (car (last queue))))
 925            (unless (nbutlast queue) (setq gdb-input-queue '()))
 926            last))))
 927
 928 (defun gdb-send-item (item)
 929   (setq gdb-flush-pending-output nil)
 930   (if gdb-enable-debug-log (push (cons 'send-item item) gdb-debug-log))
 931   (setq gdb-current-item item)
 932   (let ((process (get-buffer-process gud-comint-buffer)))
 933     (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
 934         (if (stringp item)
 935             (progn
 936               (setq gdb-output-sink 'user)
 937               (process-send-string process item))
 938           (progn
 939             (gdb-clear-partial-output)
 940             (setq gdb-output-sink 'pre-emacs)
 941             (process-send-string process
 942                                  (car item))))
 943       ;; case: eq gud-minor-mode 'gdbmi
 944       (gdb-clear-partial-output)
 945       (setq gdb-output-sink 'emacs)
 946       (process-send-string process (car item)))))
 947 \f
 948 ;;
 949 ;; output -- things gdb prints to emacs
 950 ;;
 951 ;; GDB output is a stream interrupted by annotations.
 952 ;; Annotations can be recognized by their beginning
 953 ;; with \C-j\C-z\C-z<tag><opt>\C-j
 954 ;;
 955 ;; The tag is a string obeying symbol syntax.
 956 ;;
 957 ;; The optional part `<opt>' can be either the empty string
 958 ;; or a space followed by more data relating to the annotation.
 959 ;; For example, the SOURCE annotation is followed by a filename,
 960 ;; line number and various useless goo.  This data must not include
 961 ;; any newlines.
 962 ;;
 963
 964 (defcustom gud-gdba-command-name "gdb -annotate=3"
 965   "Default command to execute an executable under the GDB-UI debugger."
 966   :type 'string
 967   :group 'gud
 968   :version "22.1")
 969
 970 (defvar gdb-annotation-rules
 971   '(("pre-prompt" gdb-pre-prompt)
 972     ("prompt" gdb-prompt)
 973     ("commands" gdb-subprompt)
 974     ("overload-choice" gdb-subprompt)
 975     ("query" gdb-subprompt)
 976     ;; Need this prompt for GDB 6.1
 977     ("nquery" gdb-subprompt)
 978     ("prompt-for-continue" gdb-subprompt)
 979     ("post-prompt" gdb-post-prompt)
 980     ("source" gdb-source)
 981     ("starting" gdb-starting)
 982     ("exited" gdb-exited)
 983     ("signalled" gdb-exited)
 984     ("signal" gdb-stopping)
 985     ("breakpoint" gdb-stopping)
 986     ("watchpoint" gdb-stopping)
 987     ("frame-begin" gdb-frame-begin)
 988     ("stopped" gdb-stopped)
 989     ("error-begin" gdb-error)
 990     ("error" gdb-error)
 991     ) "An assoc mapping annotation tags to functions which process them.")
 992
 993 (defun gdb-resync()
 994   (setq gdb-flush-pending-output t)
 995   (setq gud-running nil)
 996   (setq gdb-output-sink 'user)
 997   (setq gdb-input-queue nil)
 998   (setq gdb-pending-triggers nil)
 999   (setq gdb-prompting t))
1000
1001 (defconst gdb-source-spec-regexp
1002   "\\(.*\\):\\([0-9]*\\):[0-9]*:[a-z]*:0x0*\\([a-f0-9]*\\)")
1003
1004 ;; Do not use this except as an annotation handler.
1005 (defun gdb-source (args)
1006   (string-match gdb-source-spec-regexp args)
1007   ;; Extract the frame position from the marker.
1008   (setq gud-last-frame
1009         (cons
1010          (match-string 1 args)
1011          (string-to-number (match-string 2 args))))
1012   (setq gdb-frame-address (match-string 3 args))
1013   ;; cover for auto-display output which comes *before*
1014   ;; stopped annotation
1015   (if (eq gdb-output-sink 'inferior) (setq gdb-output-sink 'user)))
1016
1017 (defun gdb-pre-prompt (ignored)
1018   "An annotation handler for `pre-prompt'.
1019 This terminates the collection of output from a previous command if that
1020 happens to be in effect."
1021   (setq gdb-error nil)
1022   (let ((sink gdb-output-sink))
1023     (cond
1024      ((eq sink 'user) t)
1025      ((eq sink 'emacs)
1026       (setq gdb-output-sink 'post-emacs))
1027      (t
1028       (gdb-resync)
1029       (error "Phase error in gdb-pre-prompt (got %s)" sink)))))
1030
1031 (defun gdb-prompt (ignored)
1032   "An annotation handler for `prompt'.
1033 This sends the next command (if any) to gdb."
1034   (when gdb-first-prompt (gdb-ann3))
1035   (let ((sink gdb-output-sink))
1036     (cond
1037      ((eq sink 'user) t)
1038      ((eq sink 'post-emacs)
1039       (setq gdb-output-sink 'user)
1040       (let ((handler
1041              (car (cdr gdb-current-item))))
1042         (with-current-buffer (gdb-get-create-buffer 'gdb-partial-output-buffer)
1043           (funcall handler))))
1044      (t
1045       (gdb-resync)
1046       (error "Phase error in gdb-prompt (got %s)" sink))))
1047   (let ((input (gdb-dequeue-input)))
1048     (if input
1049         (gdb-send-item input)
1050       (progn
1051         (setq gdb-prompting t)
1052         (gud-display-frame)))))
1053
1054 (defun gdb-subprompt (ignored)
1055   "An annotation handler for non-top-level prompts."
1056   (setq gdb-prompting t))
1057
1058 (defun gdb-starting (ignored)
1059   "An annotation handler for `starting'.
1060 This says that I/O for the subprocess is now the program being debugged,
1061 not GDB."
1062   (setq gdb-active-process t)
1063   (let ((sink gdb-output-sink))
1064     (cond
1065      ((eq sink 'user)
1066       (progn
1067         (setq gud-running t)
1068         (if gdb-use-inferior-io-buffer
1069             (setq gdb-output-sink 'inferior))))
1070      (t
1071       (gdb-resync)
1072       (error "Unexpected `starting' annotation")))))
1073
1074 (defun gdb-stopping (ignored)
1075   "An annotation handler for `breakpoint' and other annotations.
1076 They say that I/O for the subprocess is now GDB, not the program
1077 being debugged."
1078   (if gdb-use-inferior-io-buffer
1079       (let ((sink gdb-output-sink))
1080         (cond
1081          ((eq sink 'inferior)
1082           (setq gdb-output-sink 'user))
1083          (t
1084           (gdb-resync)
1085           (error "Unexpected stopping annotation"))))))
1086
1087 (defun gdb-exited (ignored)
1088   "An annotation handler for `exited' and `signalled'.
1089 They say that I/O for the subprocess is now GDB, not the program
1090 being debugged and that the program is no longer running.  This
1091 function is used to change the focus of GUD tooltips to #define
1092 directives."
1093   (setq gdb-active-process nil)
1094   (setq gud-overlay-arrow-position nil)
1095   (setq gdb-overlay-arrow-position nil)
1096   (gdb-stopping ignored))
1097
1098 (defun gdb-frame-begin (ignored)
1099   (let ((sink gdb-output-sink))
1100     (cond
1101      ((eq sink 'inferior)
1102       (setq gdb-output-sink 'user))
1103      ((eq sink 'user) t)
1104      ((eq sink 'emacs) t)
1105      (t
1106       (gdb-resync)
1107       (error "Unexpected frame-begin annotation (%S)" sink)))))
1108
1109 (defun gdb-stopped (ignored)
1110   "An annotation handler for `stopped'.
1111 It is just like `gdb-stopping', except that if we already set the output
1112 sink to `user' in `gdb-stopping', that is fine."
1113   (setq gud-running nil)
1114   (setq gdb-active-process t)
1115   (let ((sink gdb-output-sink))
1116     (cond
1117      ((eq sink 'inferior)
1118       (setq gdb-output-sink 'user))
1119      ((eq sink 'user) t)
1120      (t
1121       (gdb-resync)
1122       (error "Unexpected stopped annotation")))))
1123
1124 (defun gdb-error (ignored)
1125   (setq gdb-error (not gdb-error)))
1126
1127 (defun gdb-post-prompt (ignored)
1128   "An annotation handler for `post-prompt'.
1129 This begins the collection of output from the current command if that
1130 happens to be appropriate."
1131   (unless gdb-pending-triggers
1132     (gdb-get-selected-frame)
1133     (gdb-invalidate-frames)
1134     (gdb-invalidate-breakpoints)
1135     ;; Do this through gdb-get-selected-frame -> gdb-frame-handler
1136     ;; so gdb-frame-address is updated.
1137     ;; (gdb-invalidate-assembler)
1138     (gdb-invalidate-registers)
1139     (gdb-invalidate-memory)
1140     (gdb-invalidate-locals)
1141     (gdb-invalidate-threads)
1142     (unless (eq system-type 'darwin) ;Breaks on Darwin's GDB-5.3.
1143       ;; FIXME: with GDB-6 on Darwin, this might very well work.
1144       ;; Only needed/used with speedbar/watch expressions.
1145       (when (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame))
1146         (setq gdb-var-changed t)    ; force update
1147         (dolist (var gdb-var-list)
1148           (setcar (nthcdr 5 var) nil))
1149         (gdb-var-update))))
1150   (let ((sink gdb-output-sink))
1151     (cond
1152      ((eq sink 'user) t)
1153      ((eq sink 'pre-emacs)
1154       (setq gdb-output-sink 'emacs))
1155      (t
1156       (gdb-resync)
1157       (error "Phase error in gdb-post-prompt (got %s)" sink)))))
1158
1159 (defun gud-gdba-marker-filter (string)
1160   "A gud marker filter for gdb.  Handle a burst of output from GDB."
1161   (if gdb-flush-pending-output
1162       nil
1163     (if gdb-enable-debug-log (push (cons 'recv string) gdb-debug-log))
1164     ;; Recall the left over gud-marker-acc from last time.
1165     (setq gud-marker-acc (concat gud-marker-acc string))
1166     ;; Start accumulating output for the GUD buffer.
1167     (let ((output ""))
1168       ;;
1169       ;; Process all the complete markers in this chunk.
1170       (while (string-match "\n\032\032\\(.*\\)\n" gud-marker-acc)
1171         (let ((annotation (match-string 1 gud-marker-acc)))
1172           ;;
1173           ;; Stuff prior to the match is just ordinary output.
1174           ;; It is either concatenated to OUTPUT or directed
1175           ;; elsewhere.
1176           (setq output
1177                 (gdb-concat-output
1178                  output
1179                  (substring gud-marker-acc 0 (match-beginning 0))))
1180           ;;
1181           ;; Take that stuff off the gud-marker-acc.
1182           (setq gud-marker-acc (substring gud-marker-acc (match-end 0)))
1183           ;;
1184           ;; Parse the tag from the annotation, and maybe its arguments.
1185           (string-match "\\(\\S-*\\) ?\\(.*\\)" annotation)
1186           (let* ((annotation-type (match-string 1 annotation))
1187                  (annotation-arguments (match-string 2 annotation))
1188                  (annotation-rule (assoc annotation-type
1189                                          gdb-annotation-rules)))
1190             ;; Call the handler for this annotation.
1191             (if annotation-rule
1192                 (funcall (car (cdr annotation-rule))
1193                          annotation-arguments)
1194               ;; Else the annotation is not recognized.  Ignore it silently,
1195               ;; so that GDB can add new annotations without causing
1196               ;; us to blow up.
1197               ))))
1198       ;;
1199       ;; Does the remaining text end in a partial line?
1200       ;; If it does, then keep part of the gud-marker-acc until we get more.
1201       (if (string-match "\n\\'\\|\n\032\\'\\|\n\032\032.*\\'"
1202                         gud-marker-acc)
1203           (progn
1204             ;; Everything before the potential marker start can be output.
1205             (setq output
1206                   (gdb-concat-output output
1207                                      (substring gud-marker-acc 0
1208                                                 (match-beginning 0))))
1209             ;;
1210             ;; Everything after, we save, to combine with later input.
1211             (setq gud-marker-acc (substring gud-marker-acc
1212                                             (match-beginning 0))))
1213         ;;
1214         ;; In case we know the gud-marker-acc contains no partial annotations:
1215         (progn
1216           (setq output (gdb-concat-output output gud-marker-acc))
1217           (setq gud-marker-acc "")))
1218       output)))
1219
1220 (defun gdb-concat-output (so-far new)
1221   (if gdb-error
1222       (put-text-property 0 (length new) 'face font-lock-warning-face new))
1223   (let ((sink gdb-output-sink))
1224     (cond
1225      ((eq sink 'user) (concat so-far new))
1226      ((or (eq sink 'pre-emacs) (eq sink 'post-emacs)) so-far)
1227      ((eq sink 'emacs)
1228       (gdb-append-to-partial-output new)
1229       so-far)
1230      ((eq sink 'inferior)
1231       (gdb-append-to-inferior-io new)
1232       so-far)
1233      (t
1234       (gdb-resync)
1235       (error "Bogon output sink %S" sink)))))
1236
1237 (defun gdb-append-to-partial-output (string)
1238   (with-current-buffer (gdb-get-create-buffer 'gdb-partial-output-buffer)
1239     (goto-char (point-max))
1240     (insert string)))
1241
1242 (defun gdb-clear-partial-output ()
1243   (with-current-buffer (gdb-get-create-buffer 'gdb-partial-output-buffer)
1244     (erase-buffer)))
1245
1246 (defun gdb-append-to-inferior-io (string)
1247   (with-current-buffer (gdb-get-create-buffer 'gdb-inferior-io)
1248     (goto-char (point-max))
1249     (insert-before-markers string))
1250   (if (not (string-equal string ""))
1251       (gdb-display-buffer (gdb-get-create-buffer 'gdb-inferior-io))))
1252
1253 (defun gdb-clear-inferior-io ()
1254   (with-current-buffer (gdb-get-create-buffer 'gdb-inferior-io)
1255     (erase-buffer)))
1256 \f
1257
1258 ;; One trick is to have a command who's output is always available in a buffer
1259 ;; of it's own, and is always up to date.  We build several buffers of this
1260 ;; type.
1261 ;;
1262 ;; There are two aspects to this: gdb has to tell us when the output for that
1263 ;; command might have changed, and we have to be able to run the command
1264 ;; behind the user's back.
1265 ;;
1266 ;; The output phasing associated with the variable gdb-output-sink
1267 ;; help us to run commands behind the user's back.
1268 ;;
1269 ;; Below is the code for specificly managing buffers of output from one
1270 ;; command.
1271 ;;
1272
1273 ;; The trigger function is suitable for use in the assoc GDB-ANNOTATION-RULES
1274 ;; It adds an input for the command we are tracking.  It should be the
1275 ;; annotation rule binding of whatever gdb sends to tell us this command
1276 ;; might have changed it's output.
1277 ;;
1278 ;; NAME is the function name. DEMAND-PREDICATE tests if output is really needed.
1279 ;; GDB-COMMAND is a string of such.  OUTPUT-HANDLER is the function bound to the
1280 ;; input in the input queue (see comment about ``gdb communications'' above).
1281
1282 (defmacro def-gdb-auto-update-trigger (name demand-predicate gdb-command
1283                                             output-handler)
1284   `(defun ,name (&optional ignored)
1285      (if (and ,demand-predicate
1286               (not (member ',name
1287                            gdb-pending-triggers)))
1288          (progn
1289            (gdb-enqueue-input
1290             (list ,gdb-command ',output-handler))
1291            (push ',name gdb-pending-triggers)))))
1292
1293 (defmacro def-gdb-auto-update-handler (name trigger buf-key custom-defun)
1294   `(defun ,name ()
1295      (setq gdb-pending-triggers
1296       (delq ',trigger
1297             gdb-pending-triggers))
1298      (let ((buf (gdb-get-buffer ',buf-key)))
1299        (and buf
1300             (with-current-buffer buf
1301               (let* ((window (get-buffer-window buf 0))
1302                      (p (window-point window))
1303                     (buffer-read-only nil))
1304                 (erase-buffer)
1305                 (insert-buffer-substring (gdb-get-create-buffer
1306                                           'gdb-partial-output-buffer))
1307                 (set-window-point window p)))))
1308      ;; put customisation here
1309      (,custom-defun)))
1310
1311 (defmacro def-gdb-auto-updated-buffer (buffer-key
1312                                        trigger-name gdb-command
1313                                        output-handler-name custom-defun)
1314   `(progn
1315      (def-gdb-auto-update-trigger ,trigger-name
1316        ;; The demand predicate:
1317        (gdb-get-buffer ',buffer-key)
1318        ,gdb-command
1319        ,output-handler-name)
1320      (def-gdb-auto-update-handler ,output-handler-name
1321        ,trigger-name ,buffer-key ,custom-defun)))
1322
1323 \f
1324 ;;
1325 ;; Breakpoint buffer : This displays the output of `info breakpoints'.
1326 ;;
1327 (gdb-set-buffer-rules 'gdb-breakpoints-buffer
1328                       'gdb-breakpoints-buffer-name
1329                       'gdb-breakpoints-mode)
1330
1331 (def-gdb-auto-updated-buffer gdb-breakpoints-buffer
1332   ;; This defines the auto update rule for buffers of type
1333   ;; `gdb-breakpoints-buffer'.
1334   ;;
1335   ;; It defines a function to serve as the annotation handler that
1336   ;; handles the `foo-invalidated' message.  That function is called:
1337   gdb-invalidate-breakpoints
1338   ;;
1339   ;; To update the buffer, this command is sent to gdb.
1340   "server info breakpoints\n"
1341   ;;
1342   ;; This also defines a function to be the handler for the output
1343   ;; from the command above.  That function will copy the output into
1344   ;; the appropriately typed buffer.  That function will be called:
1345   gdb-info-breakpoints-handler
1346   ;; buffer specific functions
1347   gdb-info-breakpoints-custom)
1348
1349 (defconst breakpoint-xpm-data
1350   "/* XPM */
1351 static char *magick[] = {
1352 /* columns rows colors chars-per-pixel */
1353 \"10 10 2 1\",
1354 \"  c red\",
1355 \"+ c None\",
1356 /* pixels */
1357 \"+++    +++\",
1358 \"++      ++\",
1359 \"+        +\",
1360 \"          \",
1361 \"          \",
1362 \"          \",
1363 \"          \",
1364 \"+        +\",
1365 \"++      ++\",
1366 \"+++    +++\",
1367 };"
1368   "XPM data used for breakpoint icon.")
1369
1370 (defconst breakpoint-enabled-pbm-data
1371   "P1
1372 10 10\",
1373 0 0 0 0 1 1 1 1 0 0 0 0
1374 0 0 0 1 1 1 1 1 1 0 0 0
1375 0 0 1 1 1 1 1 1 1 1 0 0
1376 0 1 1 1 1 1 1 1 1 1 1 0
1377 0 1 1 1 1 1 1 1 1 1 1 0
1378 0 1 1 1 1 1 1 1 1 1 1 0
1379 0 1 1 1 1 1 1 1 1 1 1 0
1380 0 0 1 1 1 1 1 1 1 1 0 0
1381 0 0 0 1 1 1 1 1 1 0 0 0
1382 0 0 0 0 1 1 1 1 0 0 0 0"
1383   "PBM data used for enabled breakpoint icon.")
1384
1385 (defconst breakpoint-disabled-pbm-data
1386   "P1
1387 10 10\",
1388 0 0 1 0 1 0 1 0 0 0
1389 0 1 0 1 0 1 0 1 0 0
1390 1 0 1 0 1 0 1 0 1 0
1391 0 1 0 1 0 1 0 1 0 1
1392 1 0 1 0 1 0 1 0 1 0
1393 0 1 0 1 0 1 0 1 0 1
1394 1 0 1 0 1 0 1 0 1 0
1395 0 1 0 1 0 1 0 1 0 1
1396 0 0 1 0 1 0 1 0 1 0
1397 0 0 0 1 0 1 0 1 0 0"
1398   "PBM data used for disabled breakpoint icon.")
1399
1400 (defvar breakpoint-enabled-icon nil
1401   "Icon for enabled breakpoint in display margin.")
1402
1403 (defvar breakpoint-disabled-icon nil
1404   "Icon for disabled breakpoint in display margin.")
1405
1406 ;; Bitmap for breakpoint in fringe
1407 (and (display-images-p)
1408      (define-fringe-bitmap 'breakpoint
1409        "\x3c\x7e\xff\xff\xff\xff\x7e\x3c"))
1410
1411 (defface breakpoint-enabled
1412   '((t
1413      :foreground "red"
1414      :weight bold))
1415   "Face for enabled breakpoint icon in fringe."
1416   :group 'gud)
1417
1418 (defface breakpoint-disabled
1419   ;; We use different values of grey for different background types,
1420   ;; so that on low-color displays it will end up as something visible
1421   ;; if it has to be approximated.
1422   '((((background dark))  :foreground "grey60")
1423     (((background light)) :foreground "grey40"))
1424   "Face for disabled breakpoint icon in fringe."
1425   :group 'gud)
1426
1427 ;; Put breakpoint icons in relevant margins (even those set in the GUD buffer).
1428 (defun gdb-info-breakpoints-custom ()
1429   (let ((flag) (bptno))
1430     ;; Remove all breakpoint-icons in source buffers but not assembler buffer.
1431     (dolist (buffer (buffer-list))
1432       (with-current-buffer buffer
1433         (if (and (eq gud-minor-mode 'gdba)
1434                  (not (string-match "\\`\\*.+\\*\\'" (buffer-name))))
1435             (gdb-remove-breakpoint-icons (point-min) (point-max)))))
1436     (with-current-buffer (gdb-get-buffer 'gdb-breakpoints-buffer)
1437       (save-excursion
1438         (goto-char (point-min))
1439         (while (< (point) (- (point-max) 1))
1440           (forward-line 1)
1441           (if (looking-at "[^\t].*?breakpoint")
1442               (progn
1443                 (looking-at "\\([0-9]+\\)\\s-+\\S-+\\s-+\\S-+\\s-+\\(.\\)")
1444                 (setq bptno (match-string 1))
1445                 (setq flag (char-after (match-beginning 2)))
1446                 (beginning-of-line)
1447                 (if (re-search-forward " in \\(.*\\) at\\s-+" nil t)
1448                     (progn
1449                       (let ((buffer-read-only nil))
1450                         (add-text-properties (match-beginning 1) (match-end 1)
1451                                              '(face font-lock-function-name-face)))
1452                       (looking-at "\\(\\S-+\\):\\([0-9]+\\)")
1453                       (let ((line (match-string 2)) (buffer-read-only nil)
1454                             (file (match-string 1)))
1455                         (add-text-properties (line-beginning-position)
1456                                              (line-end-position)
1457                          '(mouse-face highlight
1458                            help-echo "mouse-2, RET: visit breakpoint"))
1459                         (unless (file-exists-p file)
1460                            (setq file (cdr (assoc bptno gdb-location-alist))))
1461                         (if (and file
1462                                  (not (string-equal file "File not found")))
1463                             (with-current-buffer
1464                                 (find-file-noselect file 'nowarn)
1465                               (set (make-local-variable 'gud-minor-mode)
1466                                    'gdba)
1467                               (set (make-local-variable 'tool-bar-map)
1468                                    gud-tool-bar-map)
1469                               ;; Only want one breakpoint icon at each
1470                               ;; location.
1471                               (save-excursion
1472                                 (goto-line (string-to-number line))
1473                                 (gdb-put-breakpoint-icon (eq flag ?y) bptno)))
1474                           (gdb-enqueue-input
1475                            (list
1476                             (concat gdb-server-prefix "list "
1477                                     (match-string-no-properties 1) ":1\n")
1478                             'ignore))
1479                           (gdb-enqueue-input
1480                            (list (concat gdb-server-prefix "info source\n")
1481                                  `(lambda () (gdb-get-location
1482                                               ,bptno ,line ,flag))))))))))
1483           (end-of-line)))))
1484   (if (gdb-get-buffer 'gdb-assembler-buffer) (gdb-assembler-custom)))
1485
1486 (defun gdb-mouse-set-clear-breakpoint (event)
1487   "Set/clear breakpoint in left fringe/margin with mouse click."
1488   (interactive "e")
1489   (mouse-minibuffer-check event)
1490   (let ((posn (event-end event)))
1491     (if (numberp (posn-point posn))
1492         (with-selected-window (posn-window posn)
1493           (save-excursion
1494             (goto-char (posn-point posn))
1495             (if (or (posn-object posn)
1496                     (eq (car (fringe-bitmaps-at-pos (posn-point posn)))
1497                         'breakpoint))
1498                 (gud-remove nil)
1499               (gud-break nil)))))))
1500
1501 (defun gdb-mouse-toggle-breakpoint-margin (event)
1502   "Enable/disable breakpoint in left margin with mouse click."
1503   (interactive "e")
1504   (mouse-minibuffer-check event)
1505   (let ((posn (event-end event)))
1506     (if (numberp (posn-point posn))
1507         (with-selected-window (posn-window posn)
1508           (save-excursion
1509             (goto-char (posn-point posn))
1510             (if (posn-object posn)
1511                 (gdb-enqueue-input
1512                  (list
1513                   (let ((bptno (get-text-property
1514                                 0 'gdb-bptno (car (posn-string posn)))))
1515                     (concat gdb-server-prefix
1516                             (if (get-text-property
1517                                  0 'gdb-enabled (car (posn-string posn)))
1518                                 "disable "
1519                               "enable ")
1520                             bptno "\n"))
1521                   'ignore))))))))
1522
1523 (defun gdb-mouse-toggle-breakpoint-fringe (event)
1524   "Enable/disable breakpoint in left fringe with mouse click."
1525   (interactive "e")
1526   (mouse-minibuffer-check event)
1527   (let* ((posn (event-end event))
1528          (pos (posn-point posn))
1529          obj)
1530     (when (numberp pos)
1531       (with-selected-window (posn-window posn)
1532         (save-excursion
1533           (set-buffer (window-buffer (selected-window)))
1534           (goto-char pos)
1535           (dolist (overlay (overlays-in pos pos))
1536             (when (overlay-get overlay 'put-break)
1537               (setq obj (overlay-get overlay 'before-string))))
1538           (when (stringp obj)
1539             (gdb-enqueue-input
1540              (list
1541               (concat gdb-server-prefix
1542                (if (get-text-property 0 'gdb-enabled obj)
1543                    "disable "
1544                  "enable ")
1545                (get-text-property 0 'gdb-bptno obj) "\n")
1546               'ignore))))))))
1547
1548 (defun gdb-breakpoints-buffer-name ()
1549   (with-current-buffer gud-comint-buffer
1550     (concat "*breakpoints of " (gdb-get-target-string) "*")))
1551
1552 (defun gdb-display-breakpoints-buffer ()
1553   "Display status of user-settable breakpoints."
1554   (interactive)
1555   (gdb-display-buffer
1556    (gdb-get-create-buffer 'gdb-breakpoints-buffer)))
1557
1558 (defun gdb-frame-breakpoints-buffer ()
1559   "Display status of user-settable breakpoints in a new frame."
1560   (interactive)
1561   (let ((special-display-regexps (append special-display-regexps '(".*")))
1562         (special-display-frame-alist gdb-frame-parameters))
1563     (display-buffer (gdb-get-create-buffer 'gdb-breakpoints-buffer))))
1564
1565 (defvar gdb-breakpoints-mode-map
1566   (let ((map (make-sparse-keymap))
1567         (menu (make-sparse-keymap "Breakpoints")))
1568     (define-key menu [quit] '("Quit"   . kill-this-buffer))
1569     (define-key menu [goto] '("Goto"   . gdb-goto-breakpoint))
1570     (define-key menu [delete] '("Delete" . gdb-delete-breakpoint))
1571     (define-key menu [toggle] '("Toggle" . gdb-toggle-breakpoint))
1572     (suppress-keymap map)
1573     (define-key map [menu-bar breakpoints] (cons "Breakpoints" menu))
1574     (define-key map " " 'gdb-toggle-breakpoint)
1575     (define-key map "D" 'gdb-delete-breakpoint)
1576     (define-key map "q" 'kill-this-buffer)
1577     (define-key map "\r" 'gdb-goto-breakpoint)
1578     (define-key map [mouse-2] 'gdb-goto-breakpoint)
1579     (define-key map [follow-link] 'mouse-face)
1580     map))
1581
1582 (defun gdb-breakpoints-mode ()
1583   "Major mode for gdb breakpoints.
1584
1585 \\{gdb-breakpoints-mode-map}"
1586   (kill-all-local-variables)
1587   (setq major-mode 'gdb-breakpoints-mode)
1588   (setq mode-name "Breakpoints")
1589   (use-local-map gdb-breakpoints-mode-map)
1590   (setq buffer-read-only t)
1591   (run-mode-hooks 'gdb-breakpoints-mode-hook)
1592   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
1593       'gdb-invalidate-breakpoints
1594     'gdbmi-invalidate-breakpoints))
1595
1596 (defun gdb-toggle-breakpoint ()
1597   "Enable/disable breakpoint at current line."
1598   (interactive)
1599   (save-excursion
1600     (beginning-of-line 1)
1601     (if (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
1602             (looking-at "\\([0-9]+\\).*?point\\s-+\\S-+\\s-+\\(.\\)\\s-+")
1603           (looking-at
1604      "\\([0-9]+\\)\\s-+\\S-+\\s-+\\S-+\\s-+\\(.\\)\\s-+\\S-+\\s-+\\S-+:[0-9]+"))
1605         (gdb-enqueue-input
1606          (list
1607           (concat gdb-server-prefix
1608                   (if (eq ?y (char-after (match-beginning 2)))
1609                       "disable "
1610                     "enable ")
1611                   (match-string 1) "\n") 'ignore))
1612       (error "Not recognized as break/watchpoint line"))))
1613
1614 (defun gdb-delete-breakpoint ()
1615   "Delete the breakpoint at current line."
1616   (interactive)
1617   (beginning-of-line 1)
1618   (if (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
1619           (looking-at "\\([0-9]+\\).*?point\\s-+\\S-+\\s-+\\(.\\)")
1620         (looking-at
1621          "\\([0-9]+\\)\\s-+\\S-+\\s-+\\S-+\\s-+\\s-+\\S-+\\s-+\\S-+:[0-9]+"))
1622       (gdb-enqueue-input
1623        (list
1624         (concat gdb-server-prefix "delete " (match-string 1) "\n") 'ignore))
1625     (error "Not recognized as break/watchpoint line")))
1626
1627 (defun gdb-goto-breakpoint (&optional event)
1628   "Display the breakpoint location specified at current line."
1629   (interactive (list last-input-event))
1630   (if event (posn-set-point (event-end event)))
1631   ;; Hack to stop gdb-goto-breakpoint displaying in GUD buffer.
1632   (let ((window (get-buffer-window gud-comint-buffer)))
1633     (if window (save-selected-window  (select-window window))))
1634   (save-excursion
1635     (beginning-of-line 1)
1636     (if (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
1637             (looking-at "\\([0-9]+\\) .+ in .+ at\\s-+\\(\\S-+\\):\\([0-9]+\\)")
1638           (looking-at
1639            "\\([0-9]+\\)\\s-+\\S-+\\s-+\\S-+\\s-+.\\s-+\\S-+\\s-+\
1640 \\(\\S-+\\):\\([0-9]+\\)"))
1641         (let ((bptno (match-string 1))
1642               (file  (match-string 2))
1643               (line  (match-string 3)))
1644           (save-selected-window
1645             (let* ((buf (find-file-noselect
1646                          (if (file-exists-p file) file
1647                            (cdr (assoc bptno gdb-location-alist)))))
1648                    (window (display-buffer buf)))
1649               (with-current-buffer buf
1650                 (goto-line (string-to-number line))
1651                 (set-window-point window (point))))))
1652       (error "Not recognized as break/watchpoint line"))))
1653 \f
1654
1655 ;; Frames buffer.  This displays a perpetually correct bactracktrace
1656 ;; (from the command `where').
1657 ;;
1658 ;; Alas, if your stack is deep, it is costly.
1659 ;;
1660 (gdb-set-buffer-rules 'gdb-stack-buffer
1661                       'gdb-stack-buffer-name
1662                       'gdb-frames-mode)
1663
1664 (def-gdb-auto-updated-buffer gdb-stack-buffer
1665   gdb-invalidate-frames
1666   "server where\n"
1667   gdb-info-frames-handler
1668   gdb-info-frames-custom)
1669
1670 (defun gdb-info-frames-custom ()
1671   (with-current-buffer (gdb-get-buffer 'gdb-stack-buffer)
1672     (save-excursion
1673       (let ((buffer-read-only nil)
1674             bl el)
1675         (goto-char (point-min))
1676         (while (< (point) (point-max))
1677           (setq bl (line-beginning-position)
1678                 el (line-end-position))
1679           (when (looking-at "#")
1680             (add-text-properties bl el
1681                                  '(mouse-face highlight
1682                                    help-echo "mouse-2, RET: Select frame")))
1683           (goto-char bl)
1684           (when (looking-at "^#\\([0-9]+\\)")
1685             (when (string-equal (match-string 1) gdb-frame-number)
1686                 (put-text-property bl (+ bl 4)
1687                                    'face '(:inverse-video t)))
1688             (when (re-search-forward
1689                    (concat
1690                     (if (string-equal (match-string 1) "0") "" " in ")
1691                     "\\([^ ]+\\) (") el t)
1692               (put-text-property (match-beginning 1) (match-end 1)
1693                                  'face font-lock-function-name-face)
1694               (setq bl (match-end 0))
1695               (while (re-search-forward "<\\([^>]+\\)>" el t)
1696                 (put-text-property (match-beginning 1) (match-end 1)
1697                                      'face font-lock-function-name-face))
1698               (goto-char bl)
1699               (while (re-search-forward "\\(\\(\\sw\\|[_.]\\)+\\)=" el t)
1700                 (put-text-property (match-beginning 1) (match-end 1)
1701                                    'face font-lock-variable-name-face))))
1702           (forward-line 1))))))
1703
1704 (defun gdb-stack-buffer-name ()
1705   (with-current-buffer gud-comint-buffer
1706     (concat "*stack frames of " (gdb-get-target-string) "*")))
1707
1708 (defun gdb-display-stack-buffer ()
1709   "Display backtrace of current stack."
1710   (interactive)
1711   (gdb-display-buffer
1712    (gdb-get-create-buffer 'gdb-stack-buffer)))
1713
1714 (defun gdb-frame-stack-buffer ()
1715   "Display backtrace of current stack in a new frame."
1716   (interactive)
1717   (let ((special-display-regexps (append special-display-regexps '(".*")))
1718         (special-display-frame-alist gdb-frame-parameters))
1719     (display-buffer (gdb-get-create-buffer 'gdb-stack-buffer))))
1720
1721 (defvar gdb-frames-mode-map
1722   (let ((map (make-sparse-keymap)))
1723     (suppress-keymap map)
1724     (define-key map "q" 'kill-this-buffer)
1725     (define-key map "\r" 'gdb-frames-select)
1726     (define-key map [mouse-2] 'gdb-frames-select)
1727     (define-key map [follow-link] 'mouse-face)
1728     map))
1729
1730 (defun gdb-frames-mode ()
1731   "Major mode for gdb frames.
1732
1733 \\{gdb-frames-mode-map}"
1734   (kill-all-local-variables)
1735   (setq major-mode 'gdb-frames-mode)
1736   (setq mode-name "Frames")
1737   (setq buffer-read-only t)
1738   (use-local-map gdb-frames-mode-map)
1739   (run-mode-hooks 'gdb-frames-mode-hook)
1740   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
1741       'gdb-invalidate-frames
1742     'gdbmi-invalidate-frames))
1743
1744 (defun gdb-get-frame-number ()
1745   (save-excursion
1746     (end-of-line)
1747     (let* ((start (line-beginning-position))
1748            (pos (re-search-backward "^#*\\([0-9]+\\)" start t))
1749            (n (or (and pos (match-string-no-properties 1)) "0")))
1750       n)))
1751
1752 (defun gdb-frames-select (&optional event)
1753   "Select the frame and display the relevant source."
1754   (interactive (list last-input-event))
1755   (if event (posn-set-point (event-end event)))
1756   (gdb-enqueue-input
1757    (list (concat gdb-server-prefix "frame "
1758                  (gdb-get-frame-number) "\n") 'ignore))
1759   (gud-display-frame))
1760 \f
1761
1762 ;; Threads buffer.  This displays a selectable thread list.
1763 ;;
1764 (gdb-set-buffer-rules 'gdb-threads-buffer
1765                       'gdb-threads-buffer-name
1766                       'gdb-threads-mode)
1767
1768 (def-gdb-auto-updated-buffer gdb-threads-buffer
1769   gdb-invalidate-threads
1770   (concat gdb-server-prefix "info threads\n")
1771   gdb-info-threads-handler
1772   gdb-info-threads-custom)
1773
1774 (defun gdb-info-threads-custom ()
1775   (with-current-buffer (gdb-get-buffer 'gdb-threads-buffer)
1776     (let ((buffer-read-only nil))
1777       (goto-char (point-min))
1778       (while (< (point) (point-max))
1779         (unless (looking-at "No ")
1780           (add-text-properties (line-beginning-position) (line-end-position)
1781                                '(mouse-face highlight
1782                                  help-echo "mouse-2, RET: select thread")))
1783         (forward-line 1)))))
1784
1785 (defun gdb-threads-buffer-name ()
1786   (with-current-buffer gud-comint-buffer
1787     (concat "*threads of " (gdb-get-target-string) "*")))
1788
1789 (defun gdb-display-threads-buffer ()
1790   "Display IDs of currently known threads."
1791   (interactive)
1792   (gdb-display-buffer
1793    (gdb-get-create-buffer 'gdb-threads-buffer)))
1794
1795 (defun gdb-frame-threads-buffer ()
1796   "Display IDs of currently known threads in a new frame."
1797   (interactive)
1798   (let ((special-display-regexps (append special-display-regexps '(".*")))
1799         (special-display-frame-alist gdb-frame-parameters))
1800     (display-buffer (gdb-get-create-buffer 'gdb-threads-buffer))))
1801
1802 (defvar gdb-threads-mode-map
1803   (let ((map (make-sparse-keymap)))
1804     (suppress-keymap map)
1805     (define-key map "q" 'kill-this-buffer)
1806     (define-key map "\r" 'gdb-threads-select)
1807     (define-key map [mouse-2] 'gdb-threads-select)
1808     (define-key map [follow-link] 'mouse-face)
1809     map))
1810
1811 (defvar gdb-threads-font-lock-keywords
1812   '(
1813     (") +\\([^ ]+\\) ("  (1 font-lock-function-name-face))
1814     ("in \\([^ ]+\\) ("  (1 font-lock-function-name-face))
1815     ("\\(\\(\\sw\\|[_.]\\)+\\)="  (1 font-lock-variable-name-face))
1816     )
1817   "Font lock keywords used in `gdb-threads-mode'.")
1818
1819 (defun gdb-threads-mode ()
1820   "Major mode for gdb frames.
1821
1822 \\{gdb-threads-mode-map}"
1823   (kill-all-local-variables)
1824   (setq major-mode 'gdb-threads-mode)
1825   (setq mode-name "Threads")
1826   (setq buffer-read-only t)
1827   (use-local-map gdb-threads-mode-map)
1828   (set (make-local-variable 'font-lock-defaults)
1829        '(gdb-threads-font-lock-keywords))
1830   (run-mode-hooks 'gdb-threads-mode-hook)
1831   'gdb-invalidate-threads)
1832
1833 (defun gdb-get-thread-number ()
1834   (save-excursion
1835     (re-search-backward "^\\s-*\\([0-9]*\\)" nil t)
1836     (match-string-no-properties 1)))
1837
1838 (defun gdb-threads-select (&optional event)
1839   "Select the thread and display the relevant source."
1840   (interactive (list last-input-event))
1841   (if event (posn-set-point (event-end event)))
1842   (gdb-enqueue-input
1843    (list (concat gdb-server-prefix "thread "
1844                  (gdb-get-thread-number) "\n") 'ignore))
1845   (gud-display-frame))
1846 \f
1847
1848 ;; Registers buffer.
1849 ;;
1850 (defcustom gdb-all-registers nil
1851   "Non-nil means include floating-point registers."
1852   :type 'boolean
1853   :group 'gud
1854   :version "22.1")
1855
1856 (gdb-set-buffer-rules 'gdb-registers-buffer
1857                       'gdb-registers-buffer-name
1858                       'gdb-registers-mode)
1859
1860 (def-gdb-auto-updated-buffer gdb-registers-buffer
1861   gdb-invalidate-registers
1862   (concat
1863    gdb-server-prefix "info " (if gdb-all-registers "all-") "registers\n")
1864   gdb-info-registers-handler
1865   gdb-info-registers-custom)
1866
1867 (defun gdb-info-registers-custom ()
1868   (with-current-buffer (gdb-get-buffer 'gdb-registers-buffer)
1869     (save-excursion
1870       (let ((buffer-read-only nil)
1871             start end)
1872         (goto-char (point-min))
1873         (while (< (point) (point-max))
1874           (setq start (line-beginning-position))
1875           (setq end (line-end-position))
1876           (when (looking-at "^[^ ]+")
1877             (unless (string-equal (match-string 0) "The")
1878               (put-text-property start (match-end 0)
1879                                  'face font-lock-variable-name-face)
1880               (add-text-properties start end
1881                                    '(help-echo "mouse-2: edit value"
1882                                      mouse-face highlight))))
1883           (forward-line 1))))))
1884
1885 (defun gdb-edit-register-value (&optional event)
1886   (interactive (list last-input-event))
1887   (save-excursion
1888     (if event (posn-set-point (event-end event)))
1889     (beginning-of-line)
1890     (let* ((register (current-word))
1891           (value (read-string (format "New value (%s): " register))))
1892       (gdb-enqueue-input
1893        (list (concat gdb-server-prefix "set $" register "=" value "\n")
1894              'ignore)))))
1895
1896 (defvar gdb-registers-mode-map
1897   (let ((map (make-sparse-keymap)))
1898     (suppress-keymap map)
1899     (define-key map "\r" 'gdb-edit-register-value)
1900     (define-key map [mouse-2] 'gdb-edit-register-value)
1901     (define-key map " " 'gdb-all-registers)
1902     (define-key map "q" 'kill-this-buffer)
1903      map))
1904
1905 (defun gdb-registers-mode ()
1906   "Major mode for gdb registers.
1907
1908 \\{gdb-registers-mode-map}"
1909   (kill-all-local-variables)
1910   (setq major-mode 'gdb-registers-mode)
1911   (setq mode-name (if gdb-all-registers "Registers:All" "Registers:"))
1912   (setq buffer-read-only t)
1913   (use-local-map gdb-registers-mode-map)
1914   (run-mode-hooks 'gdb-registers-mode-hook)
1915   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
1916       'gdb-invalidate-registers
1917     'gdbmi-invalidate-registers))
1918
1919 (defun gdb-registers-buffer-name ()
1920   (with-current-buffer gud-comint-buffer
1921     (concat "*registers of " (gdb-get-target-string) "*")))
1922
1923 (defun gdb-display-registers-buffer ()
1924   "Display integer register contents."
1925   (interactive)
1926   (gdb-display-buffer
1927    (gdb-get-create-buffer 'gdb-registers-buffer)))
1928
1929 (defun gdb-frame-registers-buffer ()
1930   "Display integer register contents in a new frame."
1931   (interactive)
1932   (let ((special-display-regexps (append special-display-regexps '(".*")))
1933         (special-display-frame-alist gdb-frame-parameters))
1934     (display-buffer (gdb-get-create-buffer 'gdb-registers-buffer))))
1935
1936 (defun gdb-all-registers ()
1937   "Toggle the display of floating-point registers."
1938   (interactive)
1939   (if gdb-all-registers
1940       (progn
1941         (setq gdb-all-registers nil)
1942         (with-current-buffer (gdb-get-create-buffer 'gdb-registers-buffer)
1943           (setq mode-name "Registers:")))
1944     (setq gdb-all-registers t)
1945     (with-current-buffer (gdb-get-create-buffer 'gdb-registers-buffer)
1946       (setq mode-name "Registers:All")))
1947   (message (format "Display of floating-point registers %sabled"
1948                    (if gdb-all-registers "en" "dis")))
1949   (gdb-invalidate-registers))
1950 \f
1951
1952 ;; Memory buffer.
1953 ;;
1954 (defcustom gdb-memory-repeat-count 32
1955   "Number of data items in memory window."
1956   :type 'integer
1957   :group 'gud
1958   :version "22.1")
1959
1960 (defcustom gdb-memory-format "x"
1961   "Display format of data items in memory window."
1962   :type '(choice (const :tag "Hexadecimal" "x")
1963                  (const :tag "Signed decimal" "d")
1964                  (const :tag "Unsigned decimal" "u")
1965                  (const :tag "Octal" "o")
1966                  (const :tag "Binary" "t"))
1967   :group 'gud
1968   :version "22.1")
1969
1970 (defcustom gdb-memory-unit "w"
1971   "Unit size of data items in memory window."
1972   :type '(choice (const :tag "Byte" "b")
1973                  (const :tag "Halfword" "h")
1974                  (const :tag "Word" "w")
1975                  (const :tag "Giant word" "g"))
1976   :group 'gud
1977   :version "22.1")
1978
1979 (gdb-set-buffer-rules 'gdb-memory-buffer
1980                       'gdb-memory-buffer-name
1981                       'gdb-memory-mode)
1982
1983 (def-gdb-auto-updated-buffer gdb-memory-buffer
1984   gdb-invalidate-memory
1985   (concat gdb-server-prefix "x/" (number-to-string gdb-memory-repeat-count)
1986           gdb-memory-format gdb-memory-unit " " gdb-memory-address "\n")
1987   gdb-read-memory-handler
1988   gdb-read-memory-custom)
1989
1990 (defun gdb-read-memory-custom ()
1991   (save-excursion
1992     (goto-char (point-min))
1993     (if (looking-at "0x[[:xdigit:]]+")
1994         (setq gdb-memory-address (match-string 0)))))
1995
1996 (defvar gdb-memory-mode-map
1997   (let ((map (make-sparse-keymap)))
1998     (suppress-keymap map)
1999     (define-key map "q" 'kill-this-buffer)
2000      map))
2001
2002 (defun gdb-memory-set-address (event)
2003   "Set the start memory address."
2004   (interactive "e")
2005   (save-selected-window
2006     (select-window (posn-window (event-start event)))
2007     (let ((arg (read-from-minibuffer "Memory address: ")))
2008       (setq gdb-memory-address arg))
2009     (gdb-invalidate-memory)))
2010
2011 (defun gdb-memory-set-repeat-count (event)
2012   "Set the number of data items in memory window."
2013   (interactive "e")
2014   (save-selected-window
2015     (select-window (posn-window (event-start event)))
2016     (let* ((arg (read-from-minibuffer "Repeat count: "))
2017           (count (string-to-number arg)))
2018       (if (<= count 0)
2019           (error "Positive numbers only")
2020         (customize-set-variable 'gdb-memory-repeat-count count)
2021         (gdb-invalidate-memory)))))
2022
2023 (defun gdb-memory-format-binary ()
2024   "Set the display format to binary."
2025   (interactive)
2026   (customize-set-variable 'gdb-memory-format "t")
2027   (gdb-invalidate-memory))
2028
2029 (defun gdb-memory-format-octal ()
2030   "Set the display format to octal."
2031   (interactive)
2032   (customize-set-variable 'gdb-memory-format "o")
2033   (gdb-invalidate-memory))
2034
2035 (defun gdb-memory-format-unsigned ()
2036   "Set the display format to unsigned decimal."
2037   (interactive)
2038   (customize-set-variable 'gdb-memory-format "u")
2039   (gdb-invalidate-memory))
2040
2041 (defun gdb-memory-format-signed ()
2042   "Set the display format to decimal."
2043   (interactive)
2044   (customize-set-variable 'gdb-memory-format "d")
2045   (gdb-invalidate-memory))
2046
2047 (defun gdb-memory-format-hexadecimal ()
2048   "Set the display format to hexadecimal."
2049   (interactive)
2050   (customize-set-variable 'gdb-memory-format "x")
2051   (gdb-invalidate-memory))
2052
2053 (defvar gdb-memory-format-keymap
2054   (let ((map (make-sparse-keymap)))
2055     (define-key map [header-line down-mouse-3] 'gdb-memory-format-menu-1)
2056     map)
2057  "Keymap to select format in the header line.")
2058
2059 (defvar gdb-memory-format-menu (make-sparse-keymap "Format")
2060  "Menu of display formats in the header line.")
2061
2062 (define-key gdb-memory-format-menu [binary]
2063   '(menu-item "Binary" gdb-memory-format-binary
2064               :button (:radio . (equal gdb-memory-format "t"))))
2065 (define-key gdb-memory-format-menu [octal]
2066   '(menu-item "Octal" gdb-memory-format-octal
2067               :button (:radio . (equal gdb-memory-format "o"))))
2068 (define-key gdb-memory-format-menu [unsigned]
2069   '(menu-item "Unsigned Decimal" gdb-memory-format-unsigned
2070               :button (:radio . (equal gdb-memory-format "u"))))
2071 (define-key gdb-memory-format-menu [signed]
2072   '(menu-item "Signed Decimal" gdb-memory-format-signed
2073               :button (:radio . (equal gdb-memory-format "d"))))
2074 (define-key gdb-memory-format-menu [hexadecimal]
2075   '(menu-item "Hexadecimal" gdb-memory-format-hexadecimal
2076               :button (:radio . (equal gdb-memory-format "x"))))
2077
2078 (defun gdb-memory-format-menu (event)
2079   (interactive "@e")
2080   (x-popup-menu event gdb-memory-format-menu))
2081
2082 (defun gdb-memory-format-menu-1 (event)
2083   (interactive "e")
2084   (save-selected-window
2085     (select-window (posn-window (event-start event)))
2086     (let* ((selection (gdb-memory-format-menu event))
2087            (binding (and selection (lookup-key gdb-memory-format-menu
2088                                                (vector (car selection))))))
2089       (if binding (call-interactively binding)))))
2090
2091 (defun gdb-memory-unit-giant ()
2092   "Set the unit size to giant words (eight bytes)."
2093   (interactive)
2094   (customize-set-variable 'gdb-memory-unit "g")
2095   (gdb-invalidate-memory))
2096
2097 (defun gdb-memory-unit-word ()
2098   "Set the unit size to words (four bytes)."
2099   (interactive)
2100   (customize-set-variable 'gdb-memory-unit "w")
2101   (gdb-invalidate-memory))
2102
2103 (defun gdb-memory-unit-halfword ()
2104   "Set the unit size to halfwords (two bytes)."
2105   (interactive)
2106   (customize-set-variable 'gdb-memory-unit "h")
2107   (gdb-invalidate-memory))
2108
2109 (defun gdb-memory-unit-byte ()
2110   "Set the unit size to bytes."
2111   (interactive)
2112   (customize-set-variable 'gdb-memory-unit "b")
2113   (gdb-invalidate-memory))
2114
2115 (defvar gdb-memory-unit-keymap
2116   (let ((map (make-sparse-keymap)))
2117     (define-key map [header-line down-mouse-3] 'gdb-memory-unit-menu-1)
2118     map)
2119  "Keymap to select units in the header line.")
2120
2121 (defvar gdb-memory-unit-menu (make-sparse-keymap "Unit")
2122  "Menu of units in the header line.")
2123
2124 (define-key gdb-memory-unit-menu [giantwords]
2125   '(menu-item "Giant words" gdb-memory-unit-giant
2126               :button (:radio . (equal gdb-memory-unit "g"))))
2127 (define-key gdb-memory-unit-menu [words]
2128   '(menu-item "Words" gdb-memory-unit-word
2129               :button (:radio . (equal gdb-memory-unit "w"))))
2130 (define-key gdb-memory-unit-menu [halfwords]
2131   '(menu-item "Halfwords" gdb-memory-unit-halfword
2132               :button (:radio . (equal gdb-memory-unit "h"))))
2133 (define-key gdb-memory-unit-menu [bytes]
2134   '(menu-item "Bytes" gdb-memory-unit-byte
2135               :button (:radio . (equal gdb-memory-unit "b"))))
2136
2137 (defun gdb-memory-unit-menu (event)
2138   (interactive "@e")
2139   (x-popup-menu event gdb-memory-unit-menu))
2140
2141 (defun gdb-memory-unit-menu-1 (event)
2142   (interactive "e")
2143   (save-selected-window
2144     (select-window (posn-window (event-start event)))
2145     (let* ((selection (gdb-memory-unit-menu event))
2146            (binding (and selection (lookup-key gdb-memory-unit-menu
2147                                                (vector (car selection))))))
2148       (if binding (call-interactively binding)))))
2149
2150 ;;from make-mode-line-mouse-map
2151 (defun gdb-make-header-line-mouse-map (mouse function) "\
2152 Return a keymap with single entry for mouse key MOUSE on the header line.
2153 MOUSE is defined to run function FUNCTION with no args in the buffer
2154 corresponding to the mode line clicked."
2155   (let ((map (make-sparse-keymap)))
2156     (define-key map (vector 'header-line mouse) function)
2157     (define-key map (vector 'header-line 'down-mouse-1) 'ignore)
2158     map))
2159
2160 (defvar gdb-memory-font-lock-keywords
2161   '(;; <__function.name+n>
2162     ("<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>" (1 font-lock-function-name-face))
2163     )
2164   "Font lock keywords used in `gdb-memory-mode'.")
2165
2166 (defun gdb-memory-mode ()
2167   "Major mode for examining memory.
2168
2169 \\{gdb-memory-mode-map}"
2170   (kill-all-local-variables)
2171   (setq major-mode 'gdb-memory-mode)
2172   (setq mode-name "Memory")
2173   (setq buffer-read-only t)
2174   (use-local-map gdb-memory-mode-map)
2175   (setq header-line-format
2176         '(:eval
2177           (concat
2178            "Read address["
2179            (propertize
2180             "-"
2181             'face font-lock-warning-face
2182             'help-echo "mouse-1: Decrement address"
2183             'mouse-face 'mode-line-highlight
2184             'local-map
2185             (gdb-make-header-line-mouse-map
2186              'mouse-1
2187              #'(lambda () (interactive)
2188                  (let ((gdb-memory-address
2189                         ;; Let GDB do the arithmetic.
2190                         (concat
2191                          gdb-memory-address " - "
2192                          (number-to-string
2193                           (* gdb-memory-repeat-count
2194                              (cond ((string= gdb-memory-unit "b") 1)
2195                                    ((string= gdb-memory-unit "h") 2)
2196                                    ((string= gdb-memory-unit "w") 4)
2197                                    ((string= gdb-memory-unit "g") 8)))))))
2198                        (gdb-invalidate-memory)))))
2199            "|"
2200            (propertize "+"
2201                        'face font-lock-warning-face
2202                        'help-echo "mouse-1: Increment address"
2203                        'mouse-face 'mode-line-highlight
2204                        'local-map (gdb-make-header-line-mouse-map
2205                                    'mouse-1
2206                                    #'(lambda () (interactive)
2207                                        (let ((gdb-memory-address nil))
2208                                          (gdb-invalidate-memory)))))
2209            "]: "
2210            (propertize gdb-memory-address
2211                        'face font-lock-warning-face
2212                        'help-echo "mouse-1: Set memory address"
2213                        'mouse-face 'mode-line-highlight
2214                        'local-map (gdb-make-header-line-mouse-map
2215                                    'mouse-1
2216                                    #'gdb-memory-set-address))
2217            "  Repeat Count: "
2218            (propertize (number-to-string gdb-memory-repeat-count)
2219                        'face font-lock-warning-face
2220                        'help-echo "mouse-1: Set repeat count"
2221                        'mouse-face 'mode-line-highlight
2222                        'local-map (gdb-make-header-line-mouse-map
2223                                    'mouse-1
2224                                    #'gdb-memory-set-repeat-count))
2225            "  Display Format: "
2226            (propertize gdb-memory-format
2227                        'face font-lock-warning-face
2228                        'help-echo "mouse-3: Select display format"
2229                        'mouse-face 'mode-line-highlight
2230                        'local-map gdb-memory-format-keymap)
2231            "  Unit Size: "
2232            (propertize gdb-memory-unit
2233                        'face font-lock-warning-face
2234                        'help-echo "mouse-3: Select unit size"
2235                        'mouse-face 'mode-line-highlight
2236                        'local-map gdb-memory-unit-keymap))))
2237   (set (make-local-variable 'font-lock-defaults)
2238        '(gdb-memory-font-lock-keywords))
2239   (run-mode-hooks 'gdb-memory-mode-hook)
2240   'gdb-invalidate-memory)
2241
2242 (defun gdb-memory-buffer-name ()
2243   (with-current-buffer gud-comint-buffer
2244     (concat "*memory of " (gdb-get-target-string) "*")))
2245
2246 (defun gdb-display-memory-buffer ()
2247   "Display memory contents."
2248   (interactive)
2249   (gdb-display-buffer
2250    (gdb-get-create-buffer 'gdb-memory-buffer)))
2251
2252 (defun gdb-frame-memory-buffer ()
2253   "Display memory contents in a new frame."
2254   (interactive)
2255   (let ((special-display-regexps (append special-display-regexps '(".*")))
2256         (special-display-frame-alist gdb-frame-parameters))
2257     (display-buffer (gdb-get-create-buffer 'gdb-memory-buffer))))
2258 \f
2259
2260 ;; Locals buffer.
2261 ;;
2262 (gdb-set-buffer-rules 'gdb-locals-buffer
2263                       'gdb-locals-buffer-name
2264                       'gdb-locals-mode)
2265
2266 (def-gdb-auto-update-trigger gdb-invalidate-locals
2267   (gdb-get-buffer 'gdb-locals-buffer)
2268   "server info locals\n"
2269   gdb-info-locals-handler)
2270
2271 (defvar gdb-locals-watch-keymap
2272   (let ((map (make-sparse-keymap)))
2273     (define-key map "\r" '(lambda () (interactive)
2274                             (beginning-of-line)
2275                             (gud-watch)))
2276     (define-key map [mouse-2] '(lambda (event) (interactive "e")
2277                                  (mouse-set-point event)
2278                                  (beginning-of-line)
2279                                  (gud-watch)))
2280     map)
2281  "Keymap to create watch expression of a complex data type local variable.")
2282
2283 (defconst gdb-struct-string
2284   (concat (propertize "[struct/union]"
2285                       'mouse-face 'highlight
2286                       'help-echo "mouse-2: create watch expression"
2287                       'local-map gdb-locals-watch-keymap) "\n"))
2288
2289 (defconst gdb-array-string
2290   (concat " " (propertize "[array]"
2291                           'mouse-face 'highlight
2292                           'help-echo "mouse-2: create watch expression"
2293                           'local-map gdb-locals-watch-keymap) "\n"))
2294
2295 ;; Abbreviate for arrays and structures.
2296 ;; These can be expanded using gud-display.
2297 (defun gdb-info-locals-handler ()
2298   (setq gdb-pending-triggers (delq 'gdb-invalidate-locals
2299                                   gdb-pending-triggers))
2300   (let ((buf (gdb-get-buffer 'gdb-partial-output-buffer)))
2301     (with-current-buffer buf
2302       (goto-char (point-min))
2303       (while (re-search-forward "^[ }].*\n" nil t)
2304         (replace-match "" nil nil))
2305       (goto-char (point-min))
2306       (while (re-search-forward "{\\(.*=.*\n\\|\n\\)" nil t)
2307         (replace-match gdb-struct-string nil nil))
2308       (goto-char (point-min))
2309       (while (re-search-forward "\\s-*{.*\n" nil t)
2310         (replace-match gdb-array-string nil nil))))
2311   (let ((buf (gdb-get-buffer 'gdb-locals-buffer)))
2312     (and buf
2313          (with-current-buffer buf
2314               (let* ((window (get-buffer-window buf 0))
2315                      (p (window-point window))
2316                      (buffer-read-only nil))
2317                  (erase-buffer)
2318                  (insert-buffer-substring (gdb-get-create-buffer
2319                                            'gdb-partial-output-buffer))
2320                 (set-window-point window p)))))
2321   (run-hooks 'gdb-info-locals-hook))
2322
2323 (defvar gdb-locals-mode-map
2324   (let ((map (make-sparse-keymap)))
2325     (suppress-keymap map)
2326     (define-key map "q" 'kill-this-buffer)
2327      map))
2328
2329 (defvar gdb-locals-font-lock-keywords
2330   '(
2331     ;; var = (struct struct_tag) value
2332     ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +(\\(struct\\) \\(\\(\\sw\\|[_.]\\)+\\)"
2333       (1 font-lock-variable-name-face)
2334       (3 font-lock-keyword-face)
2335       (4 font-lock-type-face))
2336     ;; var = (type) value
2337     ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +(\\(\\(\\sw\\|[_.]\\)+\\)"
2338       (1 font-lock-variable-name-face)
2339       (3 font-lock-type-face))
2340     ;; var = val
2341     ( "\\(^\\(\\sw\\|[_.]\\)+\\) += +[^(]"
2342       (1 font-lock-variable-name-face))
2343     )
2344   "Font lock keywords used in `gdb-local-mode'.")
2345
2346 (defun gdb-locals-mode ()
2347   "Major mode for gdb locals.
2348
2349 \\{gdb-locals-mode-map}"
2350   (kill-all-local-variables)
2351   (setq major-mode 'gdb-locals-mode)
2352   (setq mode-name (concat "Locals:" gdb-selected-frame))
2353   (setq buffer-read-only t)
2354   (use-local-map gdb-locals-mode-map)
2355   (set (make-local-variable 'font-lock-defaults)
2356        '(gdb-locals-font-lock-keywords))
2357   (run-mode-hooks 'gdb-locals-mode-hook)
2358   (if (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer) 'gdba)
2359       'gdb-invalidate-locals
2360     'gdbmi-invalidate-locals))
2361
2362 (defun gdb-locals-buffer-name ()
2363   (with-current-buffer gud-comint-buffer
2364     (concat "*locals of " (gdb-get-target-string) "*")))
2365
2366 (defun gdb-display-locals-buffer ()
2367   "Display local variables of current stack and their values."
2368   (interactive)
2369   (gdb-display-buffer
2370    (gdb-get-create-buffer 'gdb-locals-buffer)))
2371
2372 (defun gdb-frame-locals-buffer ()
2373   "Display local variables of current stack and their values in a new frame."
2374   (interactive)
2375   (let ((special-display-regexps (append special-display-regexps '(".*")))
2376         (special-display-frame-alist gdb-frame-parameters))
2377     (display-buffer (gdb-get-create-buffer 'gdb-locals-buffer))))
2378 \f
2379
2380 ;;;; Window management
2381 (defun gdb-display-buffer (buf &optional size)
2382   (let ((answer (get-buffer-window buf 0))
2383         (must-split nil))
2384     (if answer
2385         (display-buffer buf nil 0)      ;Raise the frame if necessary.
2386       ;; The buffer is not yet displayed.
2387       (pop-to-buffer gud-comint-buffer) ;Select the right frame.
2388       (let ((window (get-lru-window)))
2389         (if (and window
2390             (not (eq window (get-buffer-window gud-comint-buffer))))
2391             (progn
2392               (set-window-buffer window buf)
2393               (setq answer window))
2394           (setq must-split t)))
2395       (if must-split
2396           (let* ((largest (get-largest-window))
2397                  (cur-size (window-height largest))
2398                  (new-size (and size (< size cur-size) (- cur-size size))))
2399             (setq answer (split-window largest new-size))
2400             (set-window-buffer answer buf)
2401             (set-window-dedicated-p answer t)))
2402       answer)))
2403
2404 \f
2405 ;;; Shared keymap initialization:
2406
2407 (let ((menu (make-sparse-keymap "GDB-Windows")))
2408   (define-key gud-menu-map [displays]
2409     `(menu-item "GDB-Windows" ,menu
2410                 :visible (memq gud-minor-mode '(gdbmi gdba))))
2411   (define-key menu [gdb] '("Gdb" . gdb-display-gdb-buffer))
2412   (define-key menu [threads] '("Threads" . gdb-display-threads-buffer))
2413   (define-key menu [memory] '("Memory" . gdb-display-memory-buffer))
2414   (define-key menu [disassembly]
2415     '("Disassembly" . gdb-display-assembler-buffer))
2416   (define-key menu [registers] '("Registers" . gdb-display-registers-buffer))
2417   (define-key menu [inferior]
2418     '(menu-item "Inferior IO" gdb-display-inferior-io-buffer
2419                 :enable gdb-use-inferior-io-buffer))
2420   (define-key menu [locals] '("Locals" . gdb-display-locals-buffer))
2421   (define-key menu [frames] '("Stack" . gdb-display-stack-buffer))
2422   (define-key menu [breakpoints]
2423     '("Breakpoints" . gdb-display-breakpoints-buffer)))
2424
2425 (let ((menu (make-sparse-keymap "GDB-Frames")))
2426   (define-key gud-menu-map [frames]
2427     `(menu-item "GDB-Frames" ,menu
2428                 :visible (memq gud-minor-mode '(gdbmi gdba))))
2429   (define-key menu [gdb] '("Gdb" . gdb-frame-gdb-buffer))
2430   (define-key menu [threads] '("Threads" . gdb-frame-threads-buffer))
2431   (define-key menu [memory] '("Memory" . gdb-frame-memory-buffer))
2432   (define-key menu [disassembly] '("Disassembiy" . gdb-frame-assembler-buffer))
2433   (define-key menu [registers] '("Registers" . gdb-frame-registers-buffer))
2434   (define-key menu [inferior]
2435     '(menu-item "Inferior IO" gdb-frame-inferior-io-buffer
2436                 :enable gdb-use-inferior-io-buffer))
2437   (define-key menu [locals] '("Locals" . gdb-frame-locals-buffer))
2438   (define-key menu [frames] '("Stack" . gdb-frame-stack-buffer))
2439   (define-key menu [breakpoints]
2440     '("Breakpoints" . gdb-frame-breakpoints-buffer)))
2441
2442 (let ((menu (make-sparse-keymap "GDB-UI/MI")))
2443   (define-key gud-menu-map [ui]
2444     `(menu-item (if (eq gud-minor-mode 'gdba) "GDB-UI" "GDB-MI")
2445                 ,menu :visible (memq gud-minor-mode '(gdbmi gdba))))
2446   (define-key menu [gdb-use-inferior-io]
2447   '(menu-item "Separate inferior IO" gdb-use-inferior-io-buffer
2448               :visible (eq gud-minor-mode 'gdba)
2449               :help "Toggle separate IO for inferior."
2450               :button (:toggle . gdb-use-inferior-io-buffer)))
2451   (define-key menu [gdb-many-windows]
2452   '(menu-item "Display Other Windows" gdb-many-windows
2453               :help "Toggle display of locals, stack and breakpoint information"
2454               :button (:toggle . gdb-many-windows)))
2455   (define-key menu [gdb-restore-windows]
2456   '(menu-item "Restore Window Layout" gdb-restore-windows
2457               :help "Restore standard layout for debug session.")))
2458
2459 (defun gdb-frame-gdb-buffer ()
2460   "Display GUD buffer in a new frame."
2461   (interactive)
2462   (let ((special-display-regexps (append special-display-regexps '(".*")))
2463         (special-display-frame-alist gdb-frame-parameters)
2464         (same-window-regexps nil))
2465     (display-buffer gud-comint-buffer)))
2466
2467 (defun gdb-display-gdb-buffer ()
2468   "Display GUD buffer."
2469   (interactive)
2470   (let ((same-window-regexps nil))
2471     (pop-to-buffer gud-comint-buffer)))
2472
2473 (defun gdb-set-window-buffer (name)
2474   (set-window-buffer (selected-window) (get-buffer name))
2475   (set-window-dedicated-p (selected-window) t))
2476
2477 (defun gdb-setup-windows ()
2478   "Layout the window pattern for `gdb-many-windows'."
2479   (gdb-display-locals-buffer)
2480   (gdb-display-stack-buffer)
2481   (delete-other-windows)
2482   (gdb-display-breakpoints-buffer)
2483   (delete-other-windows)
2484   ; Don't dedicate.
2485   (pop-to-buffer gud-comint-buffer)
2486   (split-window nil ( / ( * (window-height) 3) 4))
2487   (split-window nil ( / (window-height) 3))
2488   (split-window-horizontally)
2489   (other-window 1)
2490   (gdb-set-window-buffer (gdb-locals-buffer-name))
2491   (other-window 1)
2492   (switch-to-buffer
2493        (if gud-last-last-frame
2494            (gud-find-file (car gud-last-last-frame))
2495          (gud-find-file gdb-main-file)))
2496   (when gdb-use-inferior-io-buffer
2497     (split-window-horizontally)
2498     (other-window 1)
2499     (gdb-set-window-buffer
2500      (gdb-get-create-buffer 'gdb-inferior-io)))
2501   (other-window 1)
2502   (gdb-set-window-buffer (gdb-stack-buffer-name))
2503   (split-window-horizontally)
2504   (other-window 1)
2505   (gdb-set-window-buffer (gdb-breakpoints-buffer-name))
2506   (other-window 1))
2507
2508 (defcustom gdb-many-windows nil
2509   "Nil means just pop up the GUD buffer unless `gdb-show-main' is t.
2510 In this case it starts with two windows: one displaying the GUD
2511 buffer and the other with the source file with the main routine
2512 of the inferior.  Non-nil means display the layout shown for
2513 `gdba'."
2514   :type 'boolean
2515   :group 'gud
2516   :version "22.1")
2517
2518 (defun gdb-many-windows (arg)
2519   "Toggle the number of windows in the basic arrangement.
2520 With arg, display additional buffers iff arg is positive."
2521   (interactive "P")
2522   (setq gdb-many-windows
2523         (if (null arg)
2524             (not gdb-many-windows)
2525           (> (prefix-numeric-value arg) 0)))
2526   (if (and gud-comint-buffer
2527            (buffer-name gud-comint-buffer))
2528       (condition-case nil
2529           (gdb-restore-windows)
2530         (error nil))))
2531
2532 (defun gdb-restore-windows ()
2533   "Restore the basic arrangement of windows used by gdba.
2534 This arrangement depends on the value of `gdb-many-windows'."
2535   (interactive)
2536   (pop-to-buffer gud-comint-buffer)     ;Select the right window and frame.
2537     (delete-other-windows)
2538   (if gdb-many-windows
2539       (gdb-setup-windows)
2540     (when (or gud-last-last-frame gdb-show-main)
2541       (split-window)
2542       (other-window 1)
2543       (switch-to-buffer
2544        (if gud-last-last-frame
2545            (gud-find-file (car gud-last-last-frame))
2546          (gud-find-file gdb-main-file)))
2547       (other-window 1))))
2548
2549 (defun gdb-reset ()
2550   "Exit a debugging session cleanly.
2551 Kills the gdb buffers and resets the source buffers."
2552   (dolist (buffer (buffer-list))
2553     (unless (eq buffer gud-comint-buffer)
2554       (with-current-buffer buffer
2555         (if (memq gud-minor-mode '(gdbmi gdba))
2556             (if (string-match "\\`\\*.+\\*\\'" (buffer-name))
2557                 (kill-buffer nil)
2558               (gdb-remove-breakpoint-icons (point-min) (point-max) t)
2559               (setq gud-minor-mode nil)
2560               (kill-local-variable 'tool-bar-map)
2561               (kill-local-variable 'gdb-define-alist))))))
2562   (when (markerp gdb-overlay-arrow-position)
2563     (move-marker gdb-overlay-arrow-position nil)
2564     (setq gdb-overlay-arrow-position nil))
2565   (setq overlay-arrow-variable-list
2566         (delq 'gdb-overlay-arrow-position overlay-arrow-variable-list))
2567   (setq gud-running nil)
2568   (setq gdb-active-process nil)
2569   (setq gdb-var-list nil)
2570   (remove-hook 'after-save-hook 'gdb-create-define-alist t))
2571
2572 (defun gdb-source-info ()
2573   "Find the source file where the program starts and displays it with related
2574 buffers."
2575   (goto-char (point-min))
2576   (if (and (search-forward "Located in " nil t)
2577            (looking-at "\\S-+"))
2578       (setq gdb-main-file (match-string 0)))
2579   (goto-char (point-min))
2580   (if (search-forward "Includes preprocessor macro info." nil t)
2581       (setq gdb-macro-info t))
2582  (if gdb-many-windows
2583       (gdb-setup-windows)
2584    (gdb-get-create-buffer 'gdb-breakpoints-buffer)
2585    (if gdb-show-main
2586        (let ((pop-up-windows t))
2587          (display-buffer (gud-find-file gdb-main-file))))))
2588
2589 (defun gdb-get-location (bptno line flag)
2590   "Find the directory containing the relevant source file.
2591 Put in buffer and place breakpoint icon."
2592   (goto-char (point-min))
2593   (catch 'file-not-found
2594     (if (search-forward "Located in " nil t)
2595         (when (looking-at "\\S-+")
2596           (delete (cons bptno "File not found") gdb-location-alist)
2597           (push (cons bptno (match-string 0)) gdb-location-alist))
2598       (gdb-resync)
2599       (unless (assoc bptno gdb-location-alist)
2600         (push (cons bptno "File not found") gdb-location-alist)
2601         (message-box "Cannot find source file for breakpoint location.\n\
2602 Add directory to search path for source files using the GDB command, dir."))
2603       (throw 'file-not-found nil))
2604     (with-current-buffer
2605         (find-file-noselect (match-string 0))
2606       (save-current-buffer
2607         (set (make-local-variable 'gud-minor-mode) 'gdba)
2608         (set (make-local-variable 'tool-bar-map) gud-tool-bar-map))
2609       ;; only want one breakpoint icon at each location
2610       (save-excursion
2611         (goto-line (string-to-number line))
2612         (gdb-put-breakpoint-icon (eq flag ?y) bptno)))))
2613
2614 (add-hook 'find-file-hook 'gdb-find-file-hook)
2615
2616 (defun gdb-find-file-hook ()
2617 "Set up buffer for debugging if file is part of the source code
2618 of the current session."
2619   (if (and (not gdb-find-file-unhook)
2620            ;; in case gud or gdb-ui is just loaded
2621            gud-comint-buffer
2622            (buffer-name gud-comint-buffer)
2623            (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
2624                'gdba))
2625       (condition-case nil
2626         (gdb-enqueue-input
2627          (list (concat gdb-server-prefix "list "
2628                        (file-name-nondirectory buffer-file-name)
2629                        ":1\n")
2630                `(lambda () (gdb-set-gud-minor-mode ,(current-buffer)))))
2631         (error (setq gdb-find-file-unhook t)))))
2632
2633 ;;from put-image
2634 (defun gdb-put-string (putstring pos &optional dprop &rest sprops)
2635   "Put string PUTSTRING in front of POS in the current buffer.
2636 PUTSTRING is displayed by putting an overlay into the current buffer with a
2637 `before-string' string that has a `display' property whose value is
2638 PUTSTRING."
2639   (let ((string (make-string 1 ?x))
2640         (buffer (current-buffer)))
2641     (setq putstring (copy-sequence putstring))
2642     (let ((overlay (make-overlay pos pos buffer))
2643           (prop (or dprop
2644                     (list (list 'margin 'left-margin) putstring))))
2645       (put-text-property 0 1 'display prop string)
2646       (if sprops
2647           (add-text-properties 0 1 sprops string))
2648       (overlay-put overlay 'put-break t)
2649       (overlay-put overlay 'before-string string))))
2650
2651 ;;from remove-images
2652 (defun gdb-remove-strings (start end &optional buffer)
2653   "Remove strings between START and END in BUFFER.
2654 Remove only strings that were put in BUFFER with calls to `gdb-put-string'.
2655 BUFFER nil or omitted means use the current buffer."
2656   (unless buffer
2657     (setq buffer (current-buffer)))
2658   (dolist (overlay (overlays-in start end))
2659     (when (overlay-get overlay 'put-break)
2660           (delete-overlay overlay))))
2661
2662 (defun gdb-put-breakpoint-icon (enabled bptno)
2663   (let ((start (- (line-beginning-position) 1))
2664         (end (+ (line-end-position) 1))
2665         (putstring (if enabled "B" "b"))
2666         (source-window (get-buffer-window (current-buffer) 0)))
2667     (add-text-properties
2668      0 1 '(help-echo "mouse-1: clear bkpt, mouse-3: enable/disable bkpt")
2669      putstring)
2670     (if enabled
2671         (add-text-properties
2672          0 1 `(gdb-bptno ,bptno gdb-enabled t) putstring)
2673       (add-text-properties
2674        0 1 `(gdb-bptno ,bptno gdb-enabled nil) putstring))
2675     (gdb-remove-breakpoint-icons start end)
2676     (if (display-images-p)
2677         (if (>= (or left-fringe-width
2678                     (if source-window (car (window-fringes source-window)))
2679                     gdb-buffer-fringe-width) 8)
2680             (gdb-put-string
2681              nil (1+ start)
2682              `(left-fringe breakpoint
2683                            ,(if enabled
2684                                 'breakpoint-enabled
2685                               'breakpoint-disabled))
2686              'gdb-bptno bptno
2687              'gdb-enabled enabled)
2688           (when (< left-margin-width 2)
2689             (save-current-buffer
2690               (setq left-margin-width 2)
2691               (if source-window
2692                   (set-window-margins
2693                    source-window
2694                    left-margin-width right-margin-width))))
2695           (put-image
2696            (if enabled
2697                (or breakpoint-enabled-icon
2698                    (setq breakpoint-enabled-icon
2699                          (find-image `((:type xpm :data
2700                                               ,breakpoint-xpm-data
2701                                               :ascent 100 :pointer hand)
2702                                        (:type pbm :data
2703                                               ,breakpoint-enabled-pbm-data
2704                                               :ascent 100 :pointer hand)))))
2705              (or breakpoint-disabled-icon
2706                  (setq breakpoint-disabled-icon
2707                        (find-image `((:type xpm :data
2708                                             ,breakpoint-xpm-data
2709                                             :conversion disabled
2710                                             :ascent 100 :pointer hand)
2711                                      (:type pbm :data
2712                                             ,breakpoint-disabled-pbm-data
2713                                             :ascent 100 :pointer hand))))))
2714            (+ start 1)
2715            putstring
2716            'left-margin))
2717       (when (< left-margin-width 2)
2718         (save-current-buffer
2719           (setq left-margin-width 2)
2720           (let ((window (get-buffer-window (current-buffer) 0)))
2721             (if window
2722               (set-window-margins
2723                window left-margin-width right-margin-width)))))
2724       (gdb-put-string
2725        (propertize putstring
2726                    'face (if enabled 'breakpoint-enabled 'breakpoint-disabled))
2727        (1+ start)))))
2728
2729 (defun gdb-remove-breakpoint-icons (start end &optional remove-margin)
2730   (gdb-remove-strings start end)
2731   (if (display-images-p)
2732       (remove-images start end))
2733   (when remove-margin
2734     (setq left-margin-width 0)
2735     (let ((window (get-buffer-window (current-buffer) 0)))
2736       (if window
2737           (set-window-margins
2738            window left-margin-width right-margin-width)))))
2739
2740 \f
2741 ;;
2742 ;; Assembler buffer.
2743 ;;
2744 (gdb-set-buffer-rules 'gdb-assembler-buffer
2745                       'gdb-assembler-buffer-name
2746                       'gdb-assembler-mode)
2747
2748 (def-gdb-auto-update-handler gdb-assembler-handler
2749   gdb-invalidate-assembler
2750   gdb-assembler-buffer
2751   gdb-assembler-custom)
2752
2753 (defun gdb-assembler-custom ()
2754   (let ((buffer (gdb-get-buffer 'gdb-assembler-buffer))
2755         (pos 1) (address) (flag) (bptno))
2756     (with-current-buffer buffer
2757       (save-excursion
2758         (if (not (equal gdb-frame-address "main"))
2759             (progn
2760               (goto-char (point-min))
2761               (if (and gdb-frame-address
2762                        (search-forward gdb-frame-address nil t))
2763                   (progn
2764                     (setq pos (point))
2765                     (beginning-of-line)
2766                     (or gdb-overlay-arrow-position
2767                         (setq gdb-overlay-arrow-position (make-marker)))
2768                     (set-marker gdb-overlay-arrow-position
2769                                 (point) (current-buffer))))))
2770         ;; remove all breakpoint-icons in assembler buffer before updating.
2771         (gdb-remove-breakpoint-icons (point-min) (point-max))))
2772     (with-current-buffer (gdb-get-buffer 'gdb-breakpoints-buffer)
2773       (goto-char (point-min))
2774       (while (< (point) (- (point-max) 1))
2775         (forward-line 1)
2776         (if (looking-at "[^\t].*?breakpoint")
2777             (progn
2778               (looking-at
2779             "\\([0-9]+\\)\\s-+\\S-+\\s-+\\S-+\\s-+\\(.\\)\\s-+0x0*\\(\\S-+\\)")
2780               (setq bptno (match-string 1))
2781               (setq flag (char-after (match-beginning 2)))
2782               (setq address (match-string 3))
2783               (with-current-buffer buffer
2784                 (save-excursion
2785                   (goto-char (point-min))
2786                   (if (search-forward address nil t)
2787                       (gdb-put-breakpoint-icon (eq flag ?y) bptno))))))))
2788     (if (not (equal gdb-frame-address "main"))
2789         (with-current-buffer buffer
2790           (set-window-point (get-buffer-window buffer 0) pos)))))
2791
2792 (defvar gdb-assembler-mode-map
2793   (let ((map (make-sparse-keymap)))
2794     (suppress-keymap map)
2795     (define-key map "q" 'kill-this-buffer)
2796      map))
2797
2798 (defvar gdb-assembler-font-lock-keywords
2799   '(;; <__function.name+n>
2800     ("<\\(\\(\\sw\\|[_.]\\)+\\)\\(\\+[0-9]+\\)?>"
2801      (1 font-lock-function-name-face))
2802     ;; 0xNNNNNNNN <__function.name+n>: opcode
2803     ("^0x[0-9a-f]+ \\(<\\(\\(\\sw\\|[_.]\\)+\\)\\+[0-9]+>\\)?:[ \t]+\\(\\sw+\\)"
2804      (4 font-lock-keyword-face))
2805     ;; %register(at least i386)
2806     ("%\\sw+" . font-lock-variable-name-face)
2807     ("^\\(Dump of assembler code for function\\) \\(.+\\):"
2808      (1 font-lock-comment-face)
2809      (2 font-lock-function-name-face))
2810     ("^\\(End of assembler dump\\.\\)" . font-lock-comment-face))
2811   "Font lock keywords used in `gdb-assembler-mode'.")
2812
2813 (defun gdb-assembler-mode ()
2814   "Major mode for viewing code assembler.
2815
2816 \\{gdb-assembler-mode-map}"
2817   (kill-all-local-variables)
2818   (setq major-mode 'gdb-assembler-mode)
2819   (setq mode-name (concat "Machine:" gdb-selected-frame))
2820   (setq gdb-overlay-arrow-position nil)
2821   (add-to-list 'overlay-arrow-variable-list 'gdb-overlay-arrow-position)
2822   (setq fringes-outside-margins t)
2823   (setq buffer-read-only t)
2824   (use-local-map gdb-assembler-mode-map)
2825   (gdb-invalidate-assembler)
2826   (set (make-local-variable 'font-lock-defaults)
2827        '(gdb-assembler-font-lock-keywords))
2828   (run-mode-hooks 'gdb-assembler-mode-hook)
2829   'gdb-invalidate-assembler)
2830
2831 (defun gdb-assembler-buffer-name ()
2832   (with-current-buffer gud-comint-buffer
2833     (concat "*disassembly of " (gdb-get-target-string) "*")))
2834
2835 (defun gdb-display-assembler-buffer ()
2836   "Display disassembly view."
2837   (interactive)
2838   (setq gdb-previous-frame nil)
2839   (gdb-display-buffer
2840    (gdb-get-create-buffer 'gdb-assembler-buffer)))
2841
2842 (defun gdb-frame-assembler-buffer ()
2843   "Display disassembly view in a new frame."
2844   (interactive)
2845   (setq gdb-previous-frame nil)
2846   (let ((special-display-regexps (append special-display-regexps '(".*")))
2847         (special-display-frame-alist gdb-frame-parameters))
2848     (display-buffer (gdb-get-create-buffer 'gdb-assembler-buffer))))
2849
2850 ;; modified because if gdb-frame-address has changed value a new command
2851 ;; must be enqueued to update the buffer with the new output
2852 (defun gdb-invalidate-assembler (&optional ignored)
2853   (if (gdb-get-buffer 'gdb-assembler-buffer)
2854       (progn
2855         (unless (and gdb-selected-frame
2856                      (string-equal gdb-selected-frame gdb-previous-frame))
2857           (if (or (not (member 'gdb-invalidate-assembler
2858                                gdb-pending-triggers))
2859                   (not (string-equal gdb-frame-address
2860                                      gdb-previous-frame-address)))
2861           (progn
2862             ;; take previous disassemble command, if any, off the queue
2863             (with-current-buffer gud-comint-buffer
2864               (let ((queue gdb-input-queue))
2865                 (dolist (item queue)
2866                   (if (equal (cdr item) '(gdb-assembler-handler))
2867                       (setq gdb-input-queue
2868                             (delete item gdb-input-queue))))))
2869             (gdb-enqueue-input
2870              (list
2871               (concat gdb-server-prefix "disassemble "
2872                       (if (member gdb-frame-address '(nil "main")) nil "0x")
2873                            gdb-frame-address "\n")
2874                    'gdb-assembler-handler))
2875             (push 'gdb-invalidate-assembler gdb-pending-triggers)
2876             (setq gdb-previous-frame-address gdb-frame-address)
2877             (setq gdb-previous-frame gdb-selected-frame)))))))
2878
2879 (defun gdb-get-selected-frame ()
2880   (if (not (member 'gdb-get-selected-frame gdb-pending-triggers))
2881       (progn
2882         (gdb-enqueue-input
2883          (list (concat gdb-server-prefix "info frame\n") 'gdb-frame-handler))
2884         (push 'gdb-get-selected-frame
2885                gdb-pending-triggers))))
2886
2887 (defun gdb-frame-handler ()
2888   (setq gdb-pending-triggers
2889         (delq 'gdb-get-selected-frame gdb-pending-triggers))
2890   (goto-char (point-min))
2891   (if (re-search-forward  "Stack level \\([0-9]+\\)" nil t)
2892       (setq gdb-frame-number (match-string 1)))
2893   (goto-char (point-min))
2894   (if (re-search-forward
2895        ".*=\\s-+0x0*\\(\\S-*\\)\\s-+in\\s-+\\(\\S-*?\\);? " nil t)
2896       (progn
2897         (setq gdb-selected-frame (match-string 2))
2898         (if (gdb-get-buffer 'gdb-locals-buffer)
2899             (with-current-buffer (gdb-get-buffer 'gdb-locals-buffer)
2900               (setq mode-name (concat "Locals:" gdb-selected-frame))))
2901         (if (gdb-get-buffer 'gdb-assembler-buffer)
2902             (with-current-buffer (gdb-get-buffer 'gdb-assembler-buffer)
2903               (setq mode-name (concat "Machine:" gdb-selected-frame))))
2904         (setq gdb-frame-address (match-string 1))))
2905   (goto-char (point-min))
2906   (if (re-search-forward " source language \\(\\S-*\\)\." nil t)
2907       (setq gdb-current-language (match-string 1)))
2908   (gdb-invalidate-assembler))
2909
2910 (provide 'gdb-ui)
2911
2912 ;; arch-tag: e9fb00c5-74ef-469f-a088-37384caae352
2913 ;;; gdb-ui.el ends here