gdb/mi/gdb-mi.el

   1 ;;; gdb-mi.el (internally gdbmi6.el) - (24th May 2004)
   2
   3 ;; Run gdb with GDB/MI (-interp=mi) and access CLI using "cli-command"
   4 ;; (could use "-interpreter-exec console cli-command")
   5
   6 ;; Author: Nick Roberts <nickrob@gnu.org>
   7 ;; Maintainer: Nick Roberts <nickrob@gnu.org>
   8 ;; Keywords: unix, tools
   9
  10 ;; Copyright (C) 2004  Free Software Foundation, Inc.
  11
  12 ;; This file is part of GNU GDB.
  13
  14 ;; GNU GDB is free software; you can redistribute it and/or modify
  15 ;; it under the terms of the GNU General Public License as published by
  16 ;; the Free Software Foundation; either version 2, or (at your option)
  17 ;; any later version.
  18
  19 ;; This program is distributed in the hope that it will be useful,
  20 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 ;; GNU General Public License for more details.
  23
  24 ;;; Commentary:
  25
  26 ;; This mode acts as a graphical user interface to GDB and requires GDB 6.1
  27 ;; onwards. You can interact with GDB through the GUD buffer in the usual way,
  28 ;; but there are also buffers which control the execution and describe the
  29 ;; state of your program. It separates the input/output of your program from
  30 ;; that of GDB and displays expressions and their current values in their own
  31 ;; buffers. It also uses features of Emacs 21 such as the fringe/display
  32 ;; margin for breakpoints, and the toolbar (see the GDB Graphical Interface
  33 ;; section in the Emacs info manual).
  34
  35 ;; Start the debugger with M-x gdbmi.
  36
  37 ;; This file uses GDB/MI as the primary interface to GDB. It is still under
  38 ;; development and is part of a process to migrate Emacs from annotations
  39 ;; (as used in gdb-ui.el) to GDB/MI.
  40
  41 ;; Known Bugs:
  42 ;;
  43
  44 ;;; Code:
  45
  46 (require 'gud)
  47 (require 'gdb-ui)
  48 \f
  49
  50 ;;;###autoload
  51 (defun gdbmi (command-line)
  52   "Run gdb on program FILE in buffer *gud-FILE*.
  53 The directory containing FILE becomes the initial working directory
  54 and source-file directory for your debugger.
  55
  56 If `gdb-many-windows' is nil (the default value) then gdb just
  57 pops up the GUD buffer unless `gdb-show-main' is t. In this case
  58 it starts with two windows: one displaying the GUD buffer and the
  59 other with the source file with the main routine of the inferior.
  60
  61 If `gdb-many-windows' is t, regardless of the value of
  62 `gdb-show-main', the layout below will appear. Keybindings are
  63 given in relevant buffer.
  64
  65 Watch expressions appear in the speedbar/slowbar.
  66
  67 The following interactive lisp functions help control operation :
  68
  69 `gdb-many-windows'    - Toggle the number of windows gdb uses.
  70 `gdb-restore-windows' - To restore the window layout.
  71
  72 See Info node `(emacs)GDB Graphical Interface' for a more
  73 detailed description of this mode.
  74
  75
  76 ---------------------------------------------------------------------
  77                                GDB Toolbar
  78 ---------------------------------------------------------------------
  79 GUD buffer (I/O of GDB)           | Locals buffer
  80                                   |
  81                                   |
  82                                   |
  83 ---------------------------------------------------------------------
  84  Source buffer                    | Input/Output (of inferior) buffer
  85                                   | (comint-mode)
  86                                   |
  87                                   |
  88                                   |
  89                                   |
  90                                   |
  91                                   |
  92 ---------------------------------------------------------------------
  93  Stack buffer                     | Breakpoints buffer
  94  RET      gdb-frames-select       | SPC    gdb-toggle-breakpoint
  95                                   | RET    gdb-goto-breakpoint
  96                                   |   d    gdb-delete-breakpoint
  97 ---------------------------------------------------------------------
  98 "
  99   ;;
 100   (interactive (list (gud-query-cmdline 'gdbmi)))
 101   ;;
 102   ;; Let's start with a basic gud-gdb buffer and then modify it a bit.
 103   (gdb command-line)
 104   ;;
 105   (setq gdb-debug-log nil)
 106   (set (make-local-variable 'gud-minor-mode) 'gdbmi)
 107   (set (make-local-variable 'gud-marker-filter) 'gud-gdbmi-marker-filter)
 108   ;;
 109   (gud-def gud-break (if (not (string-equal mode-name "Machine"))
 110                          (gud-call "-break-insert %f:%l" arg)
 111                        (save-excursion
 112                          (beginning-of-line)
 113                          (forward-char 2)
 114                          (gud-call "-break-insert *%a" arg)))
 115            "\C-b" "Set breakpoint at current line or address.")
 116   ;;
 117   (gud-def gud-remove (if (not (string-equal mode-name "Machine"))
 118                           (gud-call "clear %f:%l" arg)
 119                         (save-excursion
 120                           (beginning-of-line)
 121                           (forward-char 2)
 122                           (gud-call "clear *%a" arg)))
 123            "\C-d" "Remove breakpoint at current line or address.")
 124   ;;
 125   (gud-def gud-until  (if (not (string-equal mode-name "Machine"))
 126                           (gud-call "until %f:%l" arg)
 127                         (save-excursion
 128                           (beginning-of-line)
 129                           (forward-char 2)
 130                           (gud-call "until *%a" arg)))
 131            "\C-u" "Continue to current line or address.")
 132
 133   (define-key gud-minor-mode-map [left-margin mouse-1]
 134     'gdb-mouse-toggle-breakpoint)
 135   (define-key gud-minor-mode-map [left-fringe mouse-1]
 136     'gdb-mouse-toggle-breakpoint)
 137
 138   (setq comint-input-sender 'gdbmi-send)
 139   ;;
 140   ;; (re-)initialise
 141   (setq gdb-main-file nil)
 142   (setq gdb-current-address "main")
 143   (setq gdb-previous-address nil)
 144   (setq gdb-previous-frame nil)
 145   (setq gdb-current-frame "main")
 146   (setq gdb-view-source t)
 147   (setq gdb-selected-view 'source)
 148   (setq gdb-var-list nil)
 149   (setq gdb-var-changed nil)
 150   (setq gdb-prompting nil)
 151   (setq gdb-current-item nil)
 152   (setq gdb-pending-triggers nil)
 153   (setq gdb-output-sink 'user)
 154   (setq gdb-server-prefix nil)
 155   ;;
 156   (setq gdb-buffer-type 'gdbmi)
 157   ;;
 158   ;; FIXME: use tty command to separate io.
 159   ;;(gdb-clear-inferior-io)
 160   ;;
 161   (if (eq window-system 'w32)
 162       (gdb-enqueue-input (list "-gdb-set new-console off\n" 'ignore)))
 163   ;; find source file and compilation directory here
 164   (gdb-enqueue-input (list "list main\n"   'ignore))   ; C program
 165   (gdb-enqueue-input (list "list MAIN__\n" 'ignore))   ; Fortran program
 166   (gdb-enqueue-input (list "info source\n" 'gdbmi-source-info))
 167   ;;
 168   (run-hooks 'gdbmi-mode-hook))
 169
 170 ; Force nil till fixed.
 171 (defconst gdbmi-use-inferior-io-buffer nil)
 172
 173 ; uses --all-values Needs GDB 6.1 onwards.
 174 (defun gdbmi-var-list-children (varnum)
 175   (gdb-enqueue-input
 176    (list (concat "-var-update " varnum "\n") 'ignore))
 177   (gdb-enqueue-input
 178    (list (concat "-var-list-children --all-values "
 179                  varnum "\n")
 180              `(lambda () (gdbmi-var-list-children-handler ,varnum)))))
 181
 182 (defconst gdbmi-var-list-children-regexp
 183 "name=\"\\(.*?\\)\",exp=\"\\(.*?\\)\",numchild=\"\\(.*?\\)\",value=\"\\(.*?\\)\""
 184 )
 185
 186 (defun gdbmi-var-list-children-handler (varnum)
 187   (with-current-buffer (gdb-get-create-buffer 'gdb-partial-output-buffer)
 188     (goto-char (point-min))
 189     (let ((var-list nil))
 190      (catch 'child-already-watched
 191        (dolist (var gdb-var-list)
 192          (if (string-equal varnum (cadr var))
 193              (progn
 194                (push var var-list)
 195                (while (re-search-forward gdbmi-var-list-children-regexp nil t)
 196                  (let ((varchild (list (match-string 2)
 197                                        (match-string 1)
 198                                        (match-string 3)
 199                                        nil
 200                                        (match-string 4)
 201                                        nil)))
 202                    (if (looking-at ",type=\"\\(.*?\\)\"")
 203                        (setcar (nthcdr 3 varchild) (match-string 1)))
 204                    (dolist (var1 gdb-var-list)
 205                      (if (string-equal (cadr var1) (cadr varchild))
 206                          (throw 'child-already-watched nil)))
 207                    (push varchild var-list))))
 208            (push var var-list)))
 209        (setq gdb-var-changed t)
 210        (setq gdb-var-list (nreverse var-list))))))
 211 \f
 212 ;(defun gdbmi-send (proc string)
 213 ;  "A comint send filter for gdb."
 214 ;  (setq gdb-output-sink 'user)
 215 ;  (setq gdb-prompting nil)
 216 ;  (process-send-string proc (concat "-interpreter-exec console \"" string "\"")))
 217
 218 (defun gdbmi-send (proc string)
 219   "A comint send filter for gdb."
 220   (setq gdb-output-sink 'user)
 221   (setq gdb-prompting nil)
 222   (process-send-string proc (concat string "\n")))
 223
 224 (defcustom gud-gdbmi-command-name "~/gdb/gdb/gdb -interp=mi"
 225   "Default command to execute an executable under the GDB-UI debugger."
 226   :type 'string
 227   :group 'gud)
 228
 229 (defconst gdb-stopped-regexp
 230   "\\((gdb) \n\\*stopped\\|^\\^done\\),reason=.*,file=\"\\(.*\\)\",line=\"\\(.*\\)\".*")
 231
 232 (defconst gdb-console-regexp "~\"\\(.*\\)\\\\n\"")
 233
 234 (defconst gdb-internals-regexp "&\".*\\n\"\n")
 235
 236 (defconst gdb-gdb-regexp "(gdb) \n")
 237
 238 (defconst gdb-running-regexp "^\\^running")
 239
 240 (defun gdbmi-prompt ()
 241   "This handler terminates the any collection of output. It also
 242   sends the next command (if any) to gdb."
 243   (unless gdb-pending-triggers
 244         (gdb-get-current-frame)
 245         (gdbmi-invalidate-frames)
 246         (gdbmi-invalidate-breakpoints)
 247         (gdbmi-invalidate-locals)
 248         (dolist (frame (frame-list))
 249           (when (string-equal (frame-parameter frame 'name) "Speedbar")
 250             (setq gdb-var-changed t)    ; force update
 251             (dolist (var gdb-var-list)
 252               (setcar (nthcdr 5 var) nil))))
 253         (gdb-var-update))
 254   (let ((sink gdb-output-sink))
 255     (when (eq sink 'emacs)
 256       (let ((handler
 257              (car (cdr gdb-current-item))))
 258         (with-current-buffer (gdb-get-create-buffer 'gdb-partial-output-buffer)
 259           (funcall handler)))))
 260   (let ((input (gdb-dequeue-input)))
 261     (if input
 262         (gdb-send-item input)
 263       (progn
 264         (setq gud-running nil)
 265         (setq gdb-prompting t)
 266         (gud-display-frame)))))
 267
 268 (defun gud-gdbmi-marker-filter (string)
 269   "Filter GDB/MI output."
 270   (if gdb-enable-debug-log (push (cons 'recv string) gdb-debug-log))
 271   ;; Recall the left over gud-marker-acc from last time
 272   (setq gud-marker-acc (concat gud-marker-acc string))
 273   ;; Start accumulating output for the GUD buffer
 274   (let ((output ""))
 275
 276     (if (string-match gdb-running-regexp gud-marker-acc)
 277        (setq gud-marker-acc (substring gud-marker-acc (match-end 0))
 278              gud-running t))
 279
 280     ;; Remove the trimmings from the console stream.
 281     (while (string-match gdb-console-regexp gud-marker-acc)
 282        (setq
 283         gud-marker-acc (concat (substring gud-marker-acc 0 (match-beginning 0))
 284                                (match-string 1 gud-marker-acc)
 285                                (substring gud-marker-acc (match-end 0)))))
 286
 287     ;; Remove log stream containing debugging messages being produced by GDB's
 288     ;; internals.
 289     (while (string-match gdb-internals-regexp gud-marker-acc)
 290        (setq
 291          gud-marker-acc (concat (substring gud-marker-acc 0 (match-beginning 0))
 292                                 (substring gud-marker-acc (match-end 0)))))
 293
 294     (if (string-match gdb-stopped-regexp gud-marker-acc)
 295       (setq
 296
 297        ;; Extract the frame position from the marker.
 298        gud-last-frame (cons (match-string 2 gud-marker-acc)
 299                             (string-to-int (match-string 3 gud-marker-acc)))
 300
 301        ;; Append any text before the marker to the output we're going
 302        ;; to return - we don't include the marker in this text.
 303        output (gdbmi-concat-output output
 304                       (substring gud-marker-acc 0 (match-beginning 0)))
 305
 306        ;; Set the accumulator to the remaining text.
 307        gud-marker-acc (substring gud-marker-acc (match-end 0))))
 308
 309     (while (string-match gdb-gdb-regexp gud-marker-acc)
 310       (setq
 311
 312        ;; Append any text up to and including prompt less \n to the output.
 313        output (gdbmi-concat-output output
 314                       (substring gud-marker-acc 0 (- (match-end 0) 1)))
 315
 316        ;; Set the accumulator to the remaining text.
 317        gud-marker-acc (substring gud-marker-acc (match-end 0)))
 318       (gdbmi-prompt))
 319
 320     (setq output (gdbmi-concat-output output gud-marker-acc))
 321     (setq gud-marker-acc "")
 322     output))
 323
 324 (defun gdbmi-concat-output (so-far new)
 325   (let ((sink gdb-output-sink))
 326     (cond
 327      ((eq sink 'user) (concat so-far new))
 328      ((eq sink 'emacs)
 329       (gdb-append-to-partial-output new)
 330       so-far)
 331      ((eq sink 'inferior)
 332       (gdb-append-to-inferior-io new)
 333       so-far))))
 334 \f
 335
 336 ;; Breakpoint buffer : This displays the output of `-break-list'.
 337 ;;
 338 (def-gdb-auto-updated-buffer gdb-breakpoints-buffer
 339   ;; This defines the auto update rule for buffers of type
 340   ;; `gdb-breakpoints-buffer'.
 341   ;;
 342   ;; It defines a function that queues the command below.  That function is
 343   ;; called:
 344   gdbmi-invalidate-breakpoints
 345   ;;
 346   ;; To update the buffer, this command is sent to gdb.
 347   "-break-list\n"
 348   ;;
 349   ;; This also defines a function to be the handler for the output
 350   ;; from the command above.  That function will copy the output into
 351   ;; the appropriately typed buffer.  That function will be called:
 352   gdb-break-list-handler
 353   ;; buffer specific functions
 354   gdb-break-list-custom)
 355
 356 (defconst gdb-break-list-regexp
 357 "number=\"\\(.*?\\)\",type=\"\\(.*?\\)\",disp=\"\\(.*?\\)\",enabled=\"\\(.\\)\",addr=\"\\(.*?\\)\",func=\"\\(.*?\\)\",file=\"\\(.*?\\)\",line=\"\\(.*?\\)\"")
 358
 359 (defun gdb-break-list-handler ()
 360   (setq gdb-pending-triggers (delq 'gdbmi-invalidate-breakpoints
 361                                   gdb-pending-triggers))
 362   (let ((breakpoint nil)
 363         (breakpoints-list nil))
 364     (with-current-buffer (gdb-get-create-buffer 'gdb-partial-output-buffer)
 365       (goto-char (point-min))
 366       (while (re-search-forward gdb-break-list-regexp nil t)
 367         (let ((breakpoint (list (match-string 1)
 368                                 (match-string 2)
 369                                 (match-string 3)
 370                                 (match-string 4)
 371                                 (match-string 5)
 372                                 (match-string 6)
 373                                 (match-string 7)
 374                                 (match-string 8))))
 375           (push breakpoint breakpoints-list))))
 376     (let ((buf (gdb-get-buffer 'gdb-breakpoints-buffer)))
 377       (and buf (with-current-buffer buf
 378                  (let ((p (point))
 379                        (buffer-read-only nil))
 380                    (erase-buffer)
 381                    (insert "Num Type        Disp Enb Func\tFile:Line\tAddr\n")
 382                    (dolist (breakpoint breakpoints-list)
 383                      (insert (concat
 384                               (nth 0 breakpoint) "   "
 385                               (nth 1 breakpoint) "  "
 386                               (nth 2 breakpoint) "   "
 387                               (nth 3 breakpoint) " "
 388                               (nth 5 breakpoint) "\t"
 389                               (nth 6 breakpoint) ":" (nth 7 breakpoint) "\t"
 390                               (nth 4 breakpoint) "\n")))
 391                    (goto-char p))))))
 392   (gdb-break-list-custom))
 393
 394 ;;-put breakpoint icons in relevant margins (even those set in the GUD buffer)
 395 (defun gdb-break-list-custom ()
 396   (let ((flag)(address))
 397     ;;
 398     ;; remove all breakpoint-icons in source buffers but not assembler buffer
 399     (dolist (buffer (buffer-list))
 400       (with-current-buffer buffer
 401         (if (and (eq gud-minor-mode 'gdbmi)
 402                  (not (string-match "\\`\\*.+\\*\\'" (buffer-name))))
 403             (gdb-remove-breakpoint-icons (point-min) (point-max)))))
 404     (with-current-buffer (gdb-get-buffer 'gdb-breakpoints-buffer)
 405       (save-excursion
 406         (goto-char (point-min))
 407         (while (< (point) (- (point-max) 1))
 408           (forward-line 1)
 409           (if (looking-at "[0-9]*\\s-*\\S-*\\s-*\\S-*\\s-*\\(.\\)\\s-*\\S-*\\s-*\\(\\S-*\\):\\([0-9]+\\)")
 410               (progn
 411                 (setq flag (char-after (match-beginning 1)))
 412                 (let ((line (match-string 3)) (buffer-read-only nil)
 413                       (file (match-string 2)))
 414                   (add-text-properties (point-at-bol) (point-at-eol)
 415                                        '(mouse-face highlight
 416                                                     help-echo "mouse-2, RET: visit breakpoint"))
 417                   (with-current-buffer
 418                       (find-file-noselect
 419                        (if (file-exists-p file) file
 420                          (expand-file-name file gdb-cdir)))
 421                     (save-current-buffer
 422                       (set (make-local-variable 'gud-minor-mode) 'gdbmi)
 423                       (set (make-local-variable 'tool-bar-map)
 424                            gud-tool-bar-map))
 425                     ;; only want one breakpoint icon at each location
 426                     (save-excursion
 427                       (goto-line (string-to-number line))
 428                       (gdb-put-breakpoint-icon (eq flag ?y)))))))))
 429           (end-of-line)))
 430   (if (gdb-get-buffer 'gdb-assembler-buffer) (gdb-assembler-custom)))
 431
 432 ;; Frames buffer.  This displays a perpetually correct bactrack trace.
 433 ;;
 434 (def-gdb-auto-updated-buffer gdb-stack-buffer
 435   gdbmi-invalidate-frames
 436   "-stack-list-frames\n"
 437   gdb-stack-list-frames-handler
 438   gdb-stack-list-frames-custom)
 439
 440 (defconst gdb-stack-list-frames-regexp
 441 "level=\"\\(.*?\\)\",addr=\"\\(.*?\\)\",func=\"\\(.*?\\)\",file=\"\\(.*?\\)\",line=\"\\(.*?\\)\"")
 442
 443 (defun gdb-stack-list-frames-handler ()
 444   (setq gdb-pending-triggers (delq 'gdbmi-invalidate-frames
 445                                   gdb-pending-triggers))
 446   (let ((frame nil)
 447         (call-stack nil))
 448     (with-current-buffer (gdb-get-create-buffer 'gdb-partial-output-buffer)
 449       (goto-char (point-min))
 450       (while (re-search-forward gdb-stack-list-frames-regexp nil t)
 451         (let ((frame (list (match-string 1)
 452                            (match-string 2)
 453                            (match-string 3)
 454                            (match-string 4)
 455                            (match-string 5))))
 456           (push frame call-stack))))
 457     (let ((buf (gdb-get-buffer 'gdb-stack-buffer)))
 458       (and buf (with-current-buffer buf
 459                  (let ((p (point))
 460                        (buffer-read-only nil))
 461                    (erase-buffer)
 462                    (insert "Level\tFunc\tFile:Line\tAddr\n")
 463                    (dolist (frame (nreverse call-stack))
 464                      (insert (concat
 465                               (nth 0 frame) "\t"
 466                               (nth 2 frame) "\t"
 467                               (nth 3 frame) ":" (nth 4 frame) "\t"
 468                               (nth 1 frame) "\n")))
 469                    (goto-char p))))))
 470   (gdb-stack-list-frames-custom))
 471
 472 (defun gdb-stack-list-frames-custom ()
 473   (with-current-buffer (gdb-get-buffer 'gdb-stack-buffer)
 474     (save-excursion
 475       (let ((buffer-read-only nil))
 476         (goto-char (point-min))
 477         (forward-line 1)
 478         (while (< (point) (point-max))
 479           (add-text-properties (point-at-bol) (point-at-eol)
 480                              '(mouse-face highlight
 481                                help-echo "mouse-2, RET: Select frame"))
 482           (beginning-of-line)
 483           (when (and (or (looking-at "^#[0-9]*\\s-*\\S-* in \\(\\S-*\\)")
 484                          (looking-at "^#[0-9]*\\s-*\\(\\S-*\\)"))
 485                      (equal (match-string 1) gdb-current-frame))
 486             (put-text-property (point-at-bol) (point-at-eol)
 487                                'face '(:inverse-video t)))
 488           (forward-line 1))))))
 489
 490 ;; Locals buffer.
 491 ;; uses "-stack-list-locals 2". Needs GDB 6.1 onwards.
 492 (def-gdb-auto-updated-buffer gdb-locals-buffer
 493   gdbmi-invalidate-locals
 494   "-stack-list-locals 2\n"
 495   gdb-stack-list-locals-handler
 496   gdb-stack-list-locals-custom)
 497
 498 (defconst gdb-stack-list-locals-regexp
 499   (concat "name=\"\\(.*?\\)\",type=\"\\(.*?\\)\""))
 500
 501 ;; Dont display values of arrays or structures.
 502 ;; These can be expanded using gud-watch.
 503 (defun gdb-stack-list-locals-handler nil
 504   (setq gdb-pending-triggers (delq 'gdbmi-invalidate-locals
 505                                   gdb-pending-triggers))
 506   (let ((local nil)
 507         (locals-list nil))
 508     (with-current-buffer (gdb-get-create-buffer 'gdb-partial-output-buffer)
 509       (goto-char (point-min))
 510       (while (re-search-forward gdb-stack-list-locals-regexp nil t)
 511         (let ((local (list (match-string 1)
 512                            (match-string 2)
 513                            nil)))
 514           (if (looking-at ",value=\"\\(.*?\\)\"")
 515               (setcar (nthcdr 2 local) (match-string 1)))
 516         (push local locals-list))))
 517     (let ((buf (gdb-get-buffer 'gdb-locals-buffer)))
 518       (and buf (with-current-buffer buf
 519                  (let ((p (point))
 520                        (buffer-read-only nil))
 521                    (erase-buffer)
 522                    (dolist (local locals-list)
 523                      (insert
 524                       (concat (car local) "\t" (nth 1 local) "\t"
 525                               (or (nth 2 local)
 526                                   (if (string-match "struct" (nth 1 local))
 527                                       "(structure)"
 528                                     "(array)"))
 529                               "\n")))
 530                    (goto-char p)))))))
 531
 532 (defun gdb-stack-list-locals-custom ()
 533   nil)
 534
 535 (defun gdbmi-source-info ()
 536   "Find the source file where the program starts and displays it with related
 537 buffers."
 538   (goto-char (point-min))
 539   (if (search-forward "source file is " nil t)
 540       (if (looking-at "\\S-*")
 541           (setq gdb-main-file (match-string 0)))
 542     (setq gdb-view-source nil))
 543   (if (search-forward "directory is " nil t)
 544       (if (looking-at "\\S-*:\\(\\S-*\\)")
 545           (setq gdb-cdir (match-string 1))
 546         (looking-at "\\S-*")
 547         (setq gdb-cdir (match-string 0))))
 548
 549 ;temporary heuristic
 550   (if gdb-main-file
 551       (setq gdb-main-file (expand-file-name gdb-main-file gdb-cdir)))
 552
 553   (if gdb-many-windows
 554       (gdb-setup-windows)
 555     (gdb-get-create-buffer 'gdb-breakpoints-buffer)
 556     (when gdb-show-main
 557       (switch-to-buffer gud-comint-buffer)
 558       (delete-other-windows)
 559       (split-window)
 560       (other-window 1)
 561       (switch-to-buffer
 562        (if gdb-view-source
 563            (gud-find-file gdb-main-file)
 564          (gdb-get-create-buffer 'gdb-assembler-buffer)))
 565       (other-window 1))))
 566
 567 (provide 'gdb-mi)
 568 ;;; gdbmi.el ends here