gdb/mi/gdb-mi.el

   1 ;;; gdb-mi.el
   2
   3 ;; Author: Nick Roberts <nickrob@gnu.org>
   4 ;; Maintainer: Nick Roberts <nickrob@gnu.org>
   5 ;; Keywords: unix, tools
   6
   7 ;; Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
   8
   9 ;; This file is part of GNU GDB.
  10
  11 ;; GNU GDB 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 ;; This program 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 ;;; Commentary:
  22
  23 ;; This mode acts as a graphical user interface to GDB and works with Emacs
  24 ;; 22.x and the version of GDB with which it is distributed.  You can interact
  25 ;; with GDB through the GUD buffer in the usual way, but there are also
  26 ;; buffers which control the execution and describe the state of your program.
  27 ;; It separates the input/output of your program from that of GDB and displays
  28 ;; expressions and their current values in their own buffers.  It also uses
  29 ;; features of Emacs 21 such as the fringe/display margin for breakpoints, and
  30 ;; the toolbar (see the GDB Graphical Interface section in the Emacs info
  31 ;; manual).
  32
  33 ;; Start the debugger with M-x gdbmi.
  34
  35 ;; This file uses GDB/MI as the primary interface to GDB. It is still under
  36 ;; development and is part of a process to migrate Emacs from annotations (as
  37 ;; used in gdb-ui.el) to GDB/MI.  It runs gdb with GDB/MI (-interp=mi) and
  38 ;; access CLI using "-interpreter-exec console cli-command".
  39
  40 ;; This mode acts on top of gdb-ui.el.  After the release of 22.1,
  41 ;; mainline Emacs in the CVS repository will have a file also called gdb-mi.el
  42 ;; which will *replace* gdb-ui.el.  If you are interested in developing
  43 ;; this mode you should get this version.
  44 ;;
  45 ;; Known Bugs:
  46 ;;
  47 ;; 1) To handle program input, if required, and to avoid extra output in the
  48 ;; GUD buffer you must not use run, step, next or continue etc but their MI
  49 ;; counterparts through gud-run, gud-step etc, e.g clicking on the appropriate
  50 ;; icon in the toolbar.
  51 ;; 2) Some commands send extra prompts to the GUD buffer.
  52 ;; 3) Doesn't list catchpoints in breakpoints buffer.
  53 ;;
  54 ;; TODO:
  55 ;; 1) Prefix MI commands with a token instead of queueing commands.
  56 ;; 2) Use MI command -data-read-memory for memory window.
  57 ;; 3) Use MI command -data-disassemble for disassembly window.
  58 ;; 4) Allow separate buffers for Inferior IO and GDB IO.
  59 ;; 5) Watch windows to work with threads.
  60 ;;
  61 ;;; Code:
  62
  63 (require 'gud)
  64 (require 'gdb-ui)
  65
  66 (defvar gdb-last-command nil)
  67 (defvar gdb-prompt-name nil)
  68
  69 ;;;###autoload
  70 (defun gdbmi (command-line)
  71   "Run gdb on program FILE in buffer *gud-FILE*.
  72 The directory containing FILE becomes the initial working directory
  73 and source-file directory for your debugger.
  74
  75 If `gdb-many-windows' is nil (the default value) then gdb just
  76 pops up the GUD buffer unless `gdb-show-main' is t. In this case
  77 it starts with two windows: one displaying the GUD buffer and the
  78 other with the source file with the main routine of the inferior.
  79
  80 If `gdb-many-windows' is t, regardless of the value of
  81 `gdb-show-main', the layout below will appear. Keybindings are
  82 given in relevant buffer.
  83
  84 Watch expressions appear in the speedbar/slowbar.
  85
  86 The following commands help control operation :
  87
  88 `gdb-many-windows'    - Toggle the number of windows gdb uses.
  89 `gdb-restore-windows' - To restore the window layout.
  90
  91 See Info node `(emacs)GDB Graphical Interface' for a more
  92 detailed description of this mode.
  93
  94
  95 +--------------------------------------------------------------+
  96 |                           GDB Toolbar                        |
  97 +-------------------------------+------------------------------+
  98 | GUD buffer (I/O of GDB)       | Locals buffer                |
  99 |                               |                              |
 100 |                               |                              |
 101 |                               |                              |
 102 +-------------------------------+------------------------------+
 103 | Source buffer                                                |
 104 |                                                              |
 105 |                                                              |
 106 |                                                              |
 107 |                                                              |
 108 |                                                              |
 109 |                                                              |
 110 |                                                              |
 111 +-------------------------------+------------------------------+
 112 | Stack buffer                  | Breakpoints buffer           |
 113 | RET      gdb-frames-select    | SPC    gdb-toggle-breakpoint |
 114 |                               | RET    gdb-goto-breakpoint   |
 115 |                               | d      gdb-delete-breakpoint |
 116 +-------------------------------+------------------------------+"
 117   ;;
 118   (interactive (list (gud-query-cmdline 'gdbmi)))
 119   ;;
 120   ;; Let's start with a basic gud-gdb buffer and then modify it a bit.
 121   (gdb command-line)
 122   ;;
 123   (setq gdb-debug-ring nil)
 124   (set (make-local-variable 'gud-minor-mode) 'gdbmi)
 125   (set (make-local-variable 'gud-marker-filter) 'gud-gdbmi-marker-filter)
 126   ;;
 127   (gud-def gud-step   "-exec-step %p"              "\C-s"
 128            "Step one source line with display.")
 129   (gud-def gud-stepi  "-exec-step-instruction %p"  "\C-i"
 130            "Step one instruction with display.")
 131   (gud-def gud-next   "-exec-next %p"              "\C-n"
 132            "Step one line (skip functions).")
 133   (gud-def gud-cont   "-exec-continue"             "\C-r"
 134            "Continue with display.")
 135   (gud-def gud-finish "-exec-finish"               "\C-f"
 136            "Finish executing current function.")
 137   (gud-def gud-run    "-exec-run"            nil    "Run the program.")
 138   (gud-def gud-break (if (not (string-equal mode-name "Machine"))
 139                          (gud-call "break %f:%l" arg)
 140                        (save-excursion
 141                          (beginning-of-line)
 142                          (forward-char 2)
 143                          (gud-call "break *%a" arg)))
 144            "\C-b" "Set breakpoint at current line or address.")
 145   ;;
 146   (gud-def gud-remove (if (not (string-equal mode-name "Machine"))
 147                           (gud-call "clear %f:%l" arg)
 148                         (save-excursion
 149                           (beginning-of-line)
 150                           (forward-char 2)
 151                           (gud-call "clear *%a" arg)))
 152            "\C-d" "Remove breakpoint at current line or address.")
 153   ;;
 154   (gud-def gud-until  (if (not (string-equal mode-name "Machine"))
 155                           (gud-call "-exec-until %f:%l" arg)
 156                         (save-excursion
 157                           (beginning-of-line)
 158                           (forward-char 2)
 159                           (gud-call "-exec-until *%a" arg)))
 160            "\C-u" "Continue to current line or address.")
 161
 162   (define-key gud-minor-mode-map [left-margin mouse-1]
 163     'gdb-mouse-set-clear-breakpoint)
 164   (define-key gud-minor-mode-map [left-fringe mouse-1]
 165     'gdb-mouse-set-clear-breakpoint)
 166   (define-key gud-minor-mode-map [left-fringe mouse-2]
 167     'gdb-mouse-until)
 168   (define-key gud-minor-mode-map [left-fringe drag-mouse-1]
 169     'gdb-mouse-until)
 170   (define-key gud-minor-mode-map [left-margin mouse-3]
 171     'gdb-mouse-toggle-breakpoint-margin)
 172   (define-key gud-minor-mode-map [left-fringe mouse-3]
 173     'gdb-mouse-toggle-breakpoint-fringe)
 174
 175   (setq comint-input-sender 'gdbmi-send)
 176   ;;
 177   ;; (re-)initialise
 178   (setq gdb-pc-address (if gdb-show-main "main" nil)
 179         gdb-previous-frame-address nil
 180         gdb-memory-address "main"
 181         gdb-previous-frame nil
 182         gdb-selected-frame nil
 183         gdb-frame-number nil
 184         gdb-var-list nil
 185         gdb-prompting nil
 186         gdb-input-queue nil
 187         gdb-current-item nil
 188         gdb-pending-triggers nil
 189         gdb-output-sink 'user
 190         gdb-server-prefix nil
 191         gdb-flush-pending-output nil
 192         gdb-location-alist nil
 193         gdb-source-file-list nil
 194         gdb-last-command nil
 195         gdb-prompt-name nil
 196         gdb-buffer-fringe-width (car (window-fringes)))
 197         gdb-debug-ring nil
 198         gdb-source-window nil
 199         gdb-inferior-status nil
 200         gdb-continuation nil
 201   ;;
 202   (setq gdb-buffer-type 'gdbmi)
 203   ;;
 204   ;; FIXME: use tty command to separate io.
 205   ;;(gdb-clear-inferior-io)
 206   ;;
 207   (if (eq window-system 'w32)
 208       (gdb-enqueue-input (list "-gdb-set new-console off\n" 'ignore)))
 209   (gdb-enqueue-input (list "-gdb-set height 0\n" 'ignore))
 210   ;; find source file and compilation directory here
 211   (gdb-enqueue-input
 212    ; Needs GDB 6.2 onwards.
 213    (list "-file-list-exec-source-files\n"
 214          'gdb-set-gud-minor-mode-existing-buffers-1))
 215   (gdb-enqueue-input
 216    ; Needs GDB 6.0 onwards.
 217    (list "-file-list-exec-source-file\n" 'gdb-get-source-file))
 218   (gdb-enqueue-input
 219    (list "-data-list-register-names\n" 'gdb-get-register-names))
 220   (gdb-enqueue-input
 221    (list "-gdb-show prompt\n" 'gdb-get-prompt))
 222   ;;
 223   (setq gdb-locals-font-lock-keywords gdb-locals-font-lock-keywords-2)
 224   (run-hooks 'gdbmi-mode-hook))
 225
 226 \f
 227 (defun gdbmi-send (proc string)
 228   "A comint send filter for gdb."
 229   (if gud-running
 230       (process-send-string proc (concat string "\n"))
 231     (with-current-buffer gud-comint-buffer
 232       (let ((inhibit-read-only t))
 233         (remove-text-properties (point-min) (point-max) '(face))))
 234     (setq gdb-output-sink 'user)
 235     (setq gdb-prompting nil)
 236     ;; mimic <RET> key to repeat previous command in GDB
 237     (if (not (string-match "^\\s+$" string))
 238         (setq gdb-last-command string)
 239       (if gdb-last-command (setq string gdb-last-command)))
 240     (if gdb-enable-debug
 241         (push (cons 'mi-send (concat string "\n")) gdb-debug-ring))
 242      (if (string-match "^-" string)
 243          ;; MI command
 244          (process-send-string proc (concat string "\n"))
 245        ;; CLI command
 246     (if (string-match "\\\\$" string)
 247         (setq gdb-continuation (concat gdb-continuation string "\n"))
 248       (process-send-string proc
 249                            (concat "-interpreter-exec console \""
 250                                    gdb-continuation string "\"\n"))
 251       (setq gdb-continuation nil)))))
 252
 253 (defcustom gud-gdbmi-command-name "gdb -interp=mi"
 254   "Default command to execute an executable under the GDB-UI debugger."
 255   :type 'string
 256   :group 'gud)
 257
 258 (defconst gdb-gdb-regexp "(gdb) \n")
 259
 260 (defconst gdb-running-regexp (concat "\\^running\n" gdb-gdb-regexp))
 261
 262 ;; fullname added GDB 6.4+.
 263 ;; Probably not needed. -stack-info-frame computes filename and line.
 264 (defconst gdb-stopped-regexp
 265   "\\*stopped,reason=.*?,file=\".*?\"\
 266 ,fullname=\"\\(.*?\\)\",line=\"\\(.*?\\)\"}\n")
 267
 268 (defconst gdb-error-regexp "\\^error,msg=\\(\".+\"\\)\n")
 269
 270 (defconst gdb-done-regexp "\\^done,*\n*")
 271
 272 (defconst gdb-console-regexp "~\\(\".*?[^\\]\"\\)\n")
 273
 274 (defconst gdb-internals-regexp "&\\(\".*?\\n\"\\)\n")
 275
 276 (defun gdbmi-prompt1 ()
 277   "Queue any GDB commands that the user interface needs."
 278   (unless gdb-pending-triggers
 279     (gdbmi-get-selected-frame)
 280     (gdbmi-invalidate-frames)
 281     (gdbmi-invalidate-breakpoints)
 282     (gdb-get-changed-registers)
 283     (gdb-invalidate-registers-1)
 284     (gdb-invalidate-locals-1)
 285     (if (and (boundp 'speedbar-frame) (frame-live-p speedbar-frame))
 286         (gdb-var-update-1))))
 287
 288 (defun gdbmi-prompt2 ()
 289   "Handle any output and send next GDB command."
 290   (let ((sink gdb-output-sink))
 291     (when (eq sink 'emacs)
 292       (let ((handler
 293              (car (cdr gdb-current-item))))
 294         (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
 295           (funcall handler)))))
 296   (let ((input (gdb-dequeue-input)))
 297     (if input
 298         (gdb-send-item input)
 299       (progn
 300         (setq gud-running nil)
 301         (setq gdb-prompting t)
 302         (gud-display-frame)))))
 303
 304 (defun gud-gdbmi-marker-filter (string)
 305   "Filter GDB/MI output."
 306   (if gdb-flush-pending-output
 307       nil
 308     (if gdb-enable-debug (push (cons 'recv (list string gdb-output-sink))
 309                                          gdb-debug-ring))
 310     ;; Recall the left over gud-marker-acc from last time
 311     (setq gud-marker-acc (concat gud-marker-acc string))
 312     ;; Start accumulating output for the GUD buffer
 313     (let ((output "") running)
 314
 315       (if (string-match gdb-running-regexp gud-marker-acc)
 316           (setq
 317            gud-marker-acc
 318            (concat (substring gud-marker-acc 0 (match-beginning 0))
 319                    (substring gud-marker-acc (match-end 0)))
 320            running t))
 321
 322       (if (string-match gdb-stopped-regexp gud-marker-acc)
 323           (setq
 324
 325            ;; Extract the frame position from the marker.
 326            gud-last-frame (cons (match-string 1 gud-marker-acc)
 327                                 (string-to-number
 328                                  (match-string 2 gud-marker-acc)))
 329
 330            gud-marker-acc
 331            (concat (substring gud-marker-acc 0 (match-beginning 0))
 332                    (substring gud-marker-acc (match-end 0)))))
 333
 334       ;; Filter error messages going to GUD buffer and
 335       ;; display in minibuffer.
 336       (when (eq gdb-output-sink 'user)
 337         (while (string-match gdb-error-regexp gud-marker-acc)
 338           (message (read (match-string 1 gud-marker-acc)))
 339           (setq
 340            gud-marker-acc
 341            (concat (substring gud-marker-acc 0 (match-beginning 0))
 342                    (substring gud-marker-acc (match-end 0)))))
 343
 344         (if (string-match gdb-done-regexp gud-marker-acc)
 345             (setq
 346              gud-marker-acc
 347              (concat (substring gud-marker-acc 0 (match-beginning 0))
 348                      (substring gud-marker-acc (match-end 0))))))
 349
 350       (when (string-match gdb-gdb-regexp gud-marker-acc)
 351         (setq
 352          gud-marker-acc
 353          (concat (substring gud-marker-acc 0 (match-beginning 0))
 354                    (substring gud-marker-acc (match-end 0))))
 355
 356         ;; Remove the trimmings from the console stream.
 357         (while (string-match gdb-console-regexp gud-marker-acc)
 358           (setq
 359            gud-marker-acc (concat
 360                            (substring gud-marker-acc 0 (match-beginning 0))
 361                            (read (match-string 1 gud-marker-acc))
 362                            (substring gud-marker-acc (match-end 0)))))
 363
 364         ;; Remove the trimmings from log stream containing debugging messages
 365         ;; being produced by GDB's internals and use warning face.
 366         (while (string-match gdb-internals-regexp gud-marker-acc)
 367           (setq
 368            gud-marker-acc
 369            (concat (substring gud-marker-acc 0 (match-beginning 0))
 370                    (let ((error-message
 371                           (read (match-string 1 gud-marker-acc))))
 372                      (put-text-property
 373                       0 (length error-message)
 374                       'face font-lock-warning-face
 375                       error-message)
 376                      error-message)
 377                    (substring gud-marker-acc (match-end 0)))))
 378
 379         (setq output (gdbmi-concat-output output gud-marker-acc))
 380         (setq gud-marker-acc "")
 381         (gdbmi-prompt1)
 382         (unless gdb-input-queue
 383           (setq output (concat output gdb-prompt-name)))
 384         (gdbmi-prompt2)
 385         (setq gud-running running))
 386
 387       (when gud-running
 388         (setq output (gdbmi-concat-output output gud-marker-acc))
 389         (setq gud-marker-acc ""))
 390
 391        output)))
 392
 393 (defun gdbmi-concat-output (so-far new)
 394   (let ((sink gdb-output-sink))
 395     (cond
 396      ((eq sink 'user) (concat so-far new))
 397      ((eq sink 'emacs)
 398       (gdb-append-to-partial-output new)
 399       so-far)
 400      ((eq sink 'inferior)
 401       (gdb-append-to-inferior-io new)
 402       so-far))))
 403 \f
 404
 405 ;; Breakpoint buffer : This displays the output of `-break-list'.
 406 ;;
 407 (def-gdb-auto-update-trigger gdbmi-invalidate-breakpoints
 408   (gdb-get-buffer 'gdb-breakpoints-buffer)
 409   "-break-list\n"
 410   gdb-break-list-handler)
 411
 412 (defconst gdb-break-list-regexp
 413 "bkpt={.*?number=\"\\(.*?\\)\",.*?type=\"\\(.*?\\)\",.*?disp=\"\\(.*?\\)\",.*?\
 414 enabled=\"\\(.\\)\",.*?addr=\"\\(.*?\\)\",\\(?:.*?func=\"\\(.*?\\)\",.*?\
 415 file=\"\\(.*?\\)\",.*?fullname=\".*?\",.*?line=\"\\(.*?\\)\",\
 416 \\|\\(?:.*?what=\"\\(.*?\\)\",\\)*\\).*?times=\"\\(.*?\\)\".*?}")
 417
 418 (defun gdb-break-list-handler ()
 419   (setq gdb-pending-triggers (delq 'gdbmi-invalidate-breakpoints
 420                                   gdb-pending-triggers))
 421   (let ((breakpoint) (breakpoints-list))
 422     (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
 423       (goto-char (point-min))
 424       (while (re-search-forward gdb-break-list-regexp nil t)
 425         (let ((breakpoint (list (match-string 1)
 426                                 (match-string 2)
 427                                 (match-string 3)
 428                                 (match-string 4)
 429                                 (match-string 5)
 430                                 (match-string 6)
 431                                 (match-string 7)
 432                                 (match-string 8)
 433                                 (match-string 9)
 434                                 (match-string 10))))
 435           (push breakpoint breakpoints-list))))
 436     (let ((buf (gdb-get-buffer 'gdb-breakpoints-buffer)))
 437       (and buf (with-current-buffer buf
 438                  (let ((p (point))
 439                        (buffer-read-only nil))
 440                    (erase-buffer)
 441                    (insert "Num Type           Disp Enb Hits Addr       What\n")
 442                    (dolist (breakpoint breakpoints-list)
 443                      (insert
 444                       (concat
 445                        (nth 0 breakpoint) "   "
 446                        (nth 1 breakpoint) "     "
 447                        (nth 2 breakpoint) " "
 448                        (nth 3 breakpoint) "   "
 449                        (nth 9 breakpoint) " "
 450                        (nth 4 breakpoint) " "
 451                        (if (nth 5 breakpoint)
 452                            (concat "in " (nth 5 breakpoint) " at " (nth 6 breakpoint) ":" (nth 7 breakpoint) "\n")
 453                          (concat (nth 8 breakpoint) "\n")))))
 454                    (goto-char p))))))
 455   (gdb-info-breakpoints-custom))
 456
 457 (defun gdbmi-get-location (bptno line flag)
 458   "Find the directory containing the relevant source file.
 459 Put in buffer and place breakpoint icon."
 460   (goto-char (point-min))
 461   (catch 'file-not-found
 462     (if (re-search-forward gdb-source-file-regexp-1 nil t)
 463         (delete (cons bptno "File not found") gdb-location-alist)
 464         (push (cons bptno (match-string 1)) gdb-location-alist)
 465       (gdb-resync)
 466       (unless (assoc bptno gdb-location-alist)
 467         (push (cons bptno "File not found") gdb-location-alist)
 468         (message-box "Cannot find source file for breakpoint location.
 469 Add directory to search path for source files using the GDB command, dir."))
 470       (throw 'file-not-found nil))
 471     (with-current-buffer
 472         (find-file-noselect (match-string 1))
 473       (save-current-buffer
 474         (set (make-local-variable 'gud-minor-mode) 'gdbmi)
 475         (set (make-local-variable 'tool-bar-map) gud-tool-bar-map))
 476       ;; only want one breakpoint icon at each location
 477       (save-excursion
 478         (goto-line (string-to-number line))
 479         (gdb-put-breakpoint-icon (eq flag ?y) bptno)))))
 480
 481 ;; Frames buffer.  This displays a perpetually correct bactrack trace.
 482 ;;
 483 (def-gdb-auto-update-trigger gdbmi-invalidate-frames
 484   (gdb-get-buffer 'gdb-stack-buffer)
 485   "-stack-list-frames\n"
 486   gdb-stack-list-frames-handler)
 487
 488 (defconst gdb-stack-list-frames-regexp
 489 "{.*?level=\"\\(.*?\\)\",.*?addr=\"\\(.*?\\)\",.*?func=\"\\(.*?\\)\",\
 490 \\(?:.*?file=\".*?\",.*?fullname=\"\\(.*?\\)\",.*?line=\"\\(.*?\\)\".*?}\\|\
 491 from=\"\\(.*?\\)\"\\)")
 492
 493 (defun gdb-stack-list-frames-handler ()
 494   (setq gdb-pending-triggers (delq 'gdbmi-invalidate-frames
 495                                   gdb-pending-triggers))
 496   (let ((frame nil)
 497         (call-stack nil))
 498     (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
 499       (goto-char (point-min))
 500       (while (re-search-forward gdb-stack-list-frames-regexp nil t)
 501         (let ((frame (list (match-string 1)
 502                            (match-string 2)
 503                            (match-string 3)
 504                            (match-string 4)
 505                            (match-string 5)
 506                            (match-string 6))))
 507           (push frame call-stack))))
 508     (let ((buf (gdb-get-buffer 'gdb-stack-buffer)))
 509       (and buf (with-current-buffer buf
 510                  (let ((p (point))
 511                        (buffer-read-only nil))
 512                    (erase-buffer)
 513                    (insert "Level\tAddr\tFunc\tFile:Line\n")
 514                    (dolist (frame (nreverse call-stack))
 515                      (insert
 516                       (concat
 517                        (nth 0 frame) "\t"
 518                        (nth 1 frame) "\t"
 519                        (propertize (nth 2 frame)
 520                                    'face font-lock-function-name-face) "\t"
 521                        (if (nth 3 frame)
 522                            (concat "at "(nth 3 frame) ":" (nth 4 frame) "\n")
 523                          (concat "from " (nth 5 frame) "\n")))))
 524                    (goto-char p))))))
 525   (gdb-stack-list-frames-custom))
 526
 527 (defun gdb-stack-list-frames-custom ()
 528   (with-current-buffer (gdb-get-buffer 'gdb-stack-buffer)
 529     (save-excursion
 530       (let ((buffer-read-only nil))
 531         (goto-char (point-min))
 532         (forward-line 1)
 533         (while (< (point) (point-max))
 534           (add-text-properties (point-at-bol) (point-at-eol)
 535                              '(mouse-face highlight
 536                                help-echo "mouse-2, RET: Select frame"))
 537           (beginning-of-line)
 538           (when (and (looking-at "^[0-9]+\\s-+\\(\\S-+\\)")
 539                      (equal (match-string 1) gdb-selected-frame))
 540             (put-text-property (point-at-bol) (point-at-eol)
 541                                'face '(:inverse-video t)))
 542           (forward-line 1))))))
 543
 544 \f
 545 ;; gdb-ui.el uses "info source" to find out if macro information is present.
 546 (defun gdb-get-source-file ()
 547   "Find the source file where the program starts and display it with related
 548 buffers, if required."
 549   (goto-char (point-min))
 550   (if (re-search-forward gdb-source-file-regexp-1 nil t)
 551       (setq gdb-main-file (match-string 1)))
 552  (if gdb-many-windows
 553       (gdb-setup-windows)
 554    (gdb-get-buffer-create 'gdb-breakpoints-buffer)
 555    (if gdb-show-main
 556        (let ((pop-up-windows t))
 557          (display-buffer (gud-find-file gdb-main-file))))))
 558
 559 (defun gdbmi-get-selected-frame ()
 560   (if (not (member 'gdbmi-get-selected-frame gdb-pending-triggers))
 561       (progn
 562         (gdb-enqueue-input
 563          (list "-stack-info-frame\n" 'gdbmi-frame-handler))
 564         (push 'gdbmi-get-selected-frame
 565                gdb-pending-triggers))))
 566
 567 (defun gdbmi-frame-handler ()
 568   (setq gdb-pending-triggers
 569         (delq 'gdbmi-get-selected-frame gdb-pending-triggers))
 570   (with-current-buffer (gdb-get-buffer-create 'gdb-partial-output-buffer)
 571     (goto-char (point-min))
 572     (when (re-search-forward gdb-stack-list-frames-regexp nil t)
 573       (setq gdb-frame-number (match-string 1))
 574       (setq gdb-pc-address (match-string 2))
 575       (setq gdb-selected-frame (match-string 3))
 576       (when (match-string 4)
 577         (setq gud-last-frame
 578               (cons (match-string 4) (string-to-number (match-string 5))))
 579         (gud-display-frame)
 580         (if gud-overlay-arrow-position
 581             (let ((buffer (marker-buffer gud-overlay-arrow-position))
 582                   (position (marker-position gud-overlay-arrow-position)))
 583               (when buffer
 584                 (with-current-buffer buffer
 585                   (setq fringe-indicator-alist
 586                         (if (string-equal gdb-frame-number "0")
 587                             nil
 588                           '((overlay-arrow . hollow-right-triangle))))
 589                   (setq gud-overlay-arrow-position (make-marker))
 590                   (set-marker gud-overlay-arrow-position position))))))
 591       (if (gdb-get-buffer 'gdb-locals-buffer)
 592           (with-current-buffer (gdb-get-buffer 'gdb-locals-buffer)
 593             (setq mode-name (concat "Locals:" gdb-selected-frame))))
 594       (if (gdb-get-buffer 'gdb-assembler-buffer)
 595           (with-current-buffer (gdb-get-buffer 'gdb-assembler-buffer)
 596             (setq mode-name (concat "Machine:" gdb-selected-frame)))))))
 597
 598 (defvar gdb-prompt-name-regexp "value=\"\\(.*?\\)\"")
 599
 600 (defun gdb-get-prompt ()
 601   "Find prompt for GDB session."
 602   (goto-char (point-min))
 603   (setq gdb-prompt-name nil)
 604   (re-search-forward gdb-prompt-name-regexp nil t)
 605   (setq gdb-prompt-name (match-string 1)))
 606
 607 (provide 'gdb-mi)
 608 ;;; gdbmi.el ends here