1 ;;; gud.el --- Grand Unified Debugger mode for running GDB and other debuggers
3 ;; Author: Eric S. Raymond <esr@snark.thyrsus.com>
5 ;; Keywords: unix, tools
7 ;; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2003,
8 ;; 2004, 2005, 2006 Free Software Foundation, Inc.
10 ;; This file is part of GNU Emacs.
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
13 ;; it under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
17 ;; GNU Emacs is distributed in the hope that it will be useful,
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 ;; GNU General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
24 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
25 ;; Boston, MA 02110-1301, USA.
29 ;; The ancestral gdb.el was by W. Schelter <wfs@rascal.ics.utexas.edu> It was
30 ;; later rewritten by rms. Some ideas were due to Masanobu. Grand
31 ;; Unification (sdb/dbx support) by Eric S. Raymond <esr@thyrsus.com> Barry
32 ;; Warsaw <bwarsaw@cen.com> hacked the mode to use comint.el. Shane Hartman
33 ;; <shane@spr.com> added support for xdb (HPUX debugger). Rick Sladkey
34 ;; <jrs@world.std.com> wrote the GDB command completion code. Dave Love
35 ;; <d.love@dl.ac.uk> added the IRIX kluge, re-implemented the Mips-ish variant
36 ;; and added a menu. Brian D. Carlstrom <bdc@ai.mit.edu> combined the IRIX
37 ;; kluge with the gud-xdb-directories hack producing gud-dbx-directories.
38 ;; Derek L. Davies <ddavies@world.std.com> added support for jdb (Java
43 (eval-when-compile (require 'cl)) ; for case macro
47 (defvar gdb-active-process)
48 (defvar gdb-define-alist)
49 (defvar gdb-macro-info)
50 (defvar gdb-server-prefix)
51 (defvar gdb-show-changed-values)
53 (defvar gdb-speedbar-auto-raise)
56 ;; ======================================================================
57 ;; GUD commands must be visible in C buffers visited by GUD
60 "Grand Unified Debugger mode for gdb and other debuggers under Emacs.
61 Supported debuggers include gdb, sdb, dbx, xdb, perldb, pdb (Python), jdb, and bash."
66 (defcustom gud-key-prefix "\C-x\C-a"
67 "Prefix of all GUD commands valid in C buffers."
71 (global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh)
72 (define-key ctl-x-map " " 'gud-break) ;; backward compatibility hack
74 (defvar gud-marker-filter nil)
75 (put 'gud-marker-filter 'permanent-local t)
76 (defvar gud-find-file nil)
77 (put 'gud-find-file 'permanent-local t)
79 (defun gud-marker-filter (&rest args)
80 (apply gud-marker-filter args))
82 (defvar gud-minor-mode nil)
83 (put 'gud-minor-mode 'permanent-local t)
85 (defvar gud-comint-buffer nil)
87 (defvar gud-keep-buffer nil)
89 (defun gud-symbol (sym &optional soft minor-mode)
90 "Return the symbol used for SYM in MINOR-MODE.
91 MINOR-MODE defaults to `gud-minor-mode.
92 The symbol returned is `gud-<MINOR-MODE>-<SYM>'.
93 If SOFT is non-nil, returns nil if the symbol doesn't already exist."
94 (unless (or minor-mode gud-minor-mode) (error "Gud internal error"))
95 (funcall (if soft 'intern-soft 'intern)
96 (format "gud-%s-%s" (or minor-mode gud-minor-mode) sym)))
98 (defun gud-val (sym &optional minor-mode)
99 "Return the value of `gud-symbol' SYM. Default to nil."
100 (let ((sym (gud-symbol sym t minor-mode)))
101 (if (boundp sym) (symbol-value sym))))
103 (defvar gud-running nil
104 "Non-nil if debugged program is running.
105 Used to grey out relevant toolbar icons.")
107 ;; Use existing Info buffer, if possible.
108 (defun gud-goto-info ()
109 "Go to relevant Emacs info node."
111 (let ((same-window-regexps same-window-regexps)
112 (display-buffer-reuse-frames t))
116 (if (eq (window-buffer window) (get-buffer "*info*"))
118 (setq same-window-regexps nil)
119 (throw 'info-found nil))))
121 (select-frame (make-frame)))
122 (if (memq gud-minor-mode '(gdbmi gdba))
123 (info "(emacs)GDB Graphical Interface")
124 (info "(emacs)Debuggers"))))
126 (defun gud-tool-bar-item-visible-no-fringe ()
127 (not (or (eq (buffer-local-value 'major-mode (window-buffer)) 'speedbar-mode)
128 (and (memq gud-minor-mode '(gdbmi gdba))
129 (> (car (window-fringes)) 0)))))
131 (defun gud-stop-subjob ()
133 (with-current-buffer gud-comint-buffer
134 (if (string-equal gud-target-name "emacs")
136 (comint-interrupt-subjob))))
138 (easy-mmode-defmap gud-menu-map
139 '(([help] "Info" . gud-goto-info)
140 ([tooltips] menu-item "Toggle GUD tooltips" gud-tooltip-mode
141 :enable (and (not emacs-basic-display)
143 (fboundp 'x-show-tip))
144 :visible (memq gud-minor-mode
145 '(gdbmi gdba dbx sdb xdb pdb))
146 :button (:toggle . gud-tooltip-mode))
147 ([refresh] "Refresh" . gud-refresh)
148 ([run] menu-item "Run" gud-run
149 :enable (not gud-running)
150 :visible (and (memq gud-minor-mode '(gdbmi gdb dbx jdb))
151 (not (eq gud-minor-mode 'gdba))))
152 ([go] menu-item (if gdb-active-process "Continue" "Run") gud-go
153 :visible (and (not gud-running)
154 (eq gud-minor-mode 'gdba)))
155 ([stop] menu-item "Stop" gud-stop-subjob
156 :visible (or (not (eq gud-minor-mode 'gdba))
158 (eq gud-minor-mode 'gdba))))
159 ([until] menu-item "Continue to selection" gud-until
160 :enable (not gud-running)
161 :visible (and (memq gud-minor-mode '(gdbmi gdba gdb perldb))
162 (gud-tool-bar-item-visible-no-fringe)))
163 ([remove] menu-item "Remove Breakpoint" gud-remove
164 :enable (not gud-running)
165 :visible (gud-tool-bar-item-visible-no-fringe))
166 ([tbreak] menu-item "Temporary Breakpoint" gud-tbreak
167 :enable (not gud-running)
168 :visible (memq gud-minor-mode
169 '(gdbmi gdba gdb sdb xdb bashdb)))
170 ([break] menu-item "Set Breakpoint" gud-break
171 :enable (not gud-running)
172 :visible (gud-tool-bar-item-visible-no-fringe))
173 ([up] menu-item "Up Stack" gud-up
174 :enable (not gud-running)
175 :visible (memq gud-minor-mode
176 '(gdbmi gdba gdb dbx xdb jdb pdb bashdb)))
177 ([down] menu-item "Down Stack" gud-down
178 :enable (not gud-running)
179 :visible (memq gud-minor-mode
180 '(gdbmi gdba gdb dbx xdb jdb pdb bashdb)))
181 ([pp] menu-item "Print S-expression" gud-pp
182 :enable (and (not gud-running)
184 :visible (and (string-equal
186 'gud-target-name gud-comint-buffer) "emacs")
187 (eq gud-minor-mode 'gdba)))
188 ([print*] menu-item "Print Dereference" gud-pstar
189 :enable (not gud-running)
190 :visible (memq gud-minor-mode '(gdbmi gdba gdb)))
191 ([print] menu-item "Print Expression" gud-print
192 :enable (not gud-running))
193 ([watch] menu-item "Watch Expression" gud-watch
194 :enable (not gud-running)
195 :visible (memq gud-minor-mode '(gdbmi gdba)))
196 ([finish] menu-item "Finish Function" gud-finish
197 :enable (not gud-running)
198 :visible (memq gud-minor-mode
199 '(gdbmi gdba gdb xdb jdb pdb bashdb)))
200 ([stepi] menu-item "Step Instruction" gud-stepi
201 :enable (not gud-running)
202 :visible (memq gud-minor-mode '(gdbmi gdba gdb dbx)))
203 ([nexti] menu-item "Next Instruction" gud-nexti
204 :enable (not gud-running)
205 :visible (memq gud-minor-mode '(gdbmi gdba gdb dbx)))
206 ([step] menu-item "Step Line" gud-step
207 :enable (not gud-running))
208 ([next] menu-item "Next Line" gud-next
209 :enable (not gud-running))
210 ([cont] menu-item "Continue" gud-cont
211 :enable (not gud-running)
212 :visible (not (eq gud-minor-mode 'gdba))))
213 "Menu for `gud-mode'."
216 (easy-mmode-defmap gud-minor-mode-map
217 `(([menu-bar debug] . ("Gud" . ,gud-menu-map)))
218 "Map used in visited files.")
220 (let ((m (assq 'gud-minor-mode minor-mode-map-alist)))
221 (if m (setcdr m gud-minor-mode-map)
222 (push (cons 'gud-minor-mode gud-minor-mode-map) minor-mode-map-alist)))
225 ;; Will inherit from comint-mode via define-derived-mode.
227 "`gud-mode' keymap.")
229 (defvar gud-tool-bar-map
230 (if (display-graphic-p)
231 (let ((map (make-sparse-keymap)))
232 (dolist (x '((gud-break . "gud/break")
233 (gud-remove . "gud/remove")
234 (gud-print . "gud/print")
235 (gud-pstar . "gud/pstar")
237 (gud-watch . "gud/watch")
238 (gud-run . "gud/run")
240 (gud-stop-subjob . "gud/stop")
241 (gud-cont . "gud/cont")
242 (gud-until . "gud/until")
243 (gud-next . "gud/next")
244 (gud-step . "gud/step")
245 (gud-finish . "gud/finish")
246 (gud-nexti . "gud/nexti")
247 (gud-stepi . "gud/stepi")
249 (gud-down . "gud/down")
250 (gud-goto-info . "info"))
252 (tool-bar-local-item-from-menu
253 (car x) (cdr x) map gud-minor-mode-map)))))
255 (defun gud-file-name (f)
256 "Transform a relative file name to an absolute file name.
257 Uses `gud-<MINOR-MODE>-directories' to find the source files."
258 (if (file-exists-p f) (expand-file-name f)
259 (let ((directories (gud-val 'directories))
262 (let ((path (expand-file-name f (car directories))))
263 (if (file-exists-p path)
266 (setq directories (cdr directories)))
269 (defun gud-find-file (file)
270 ;; Don't get confused by double slashes in the name that comes from GDB.
271 (while (string-match "//+" file)
272 (setq file (replace-match "/" t t file)))
273 (let ((minor-mode gud-minor-mode)
274 (buf (funcall (or gud-find-file 'gud-file-name) file)))
276 (setq buf (and (file-readable-p buf) (find-file-noselect buf 'nowarn))))
278 ;; Copy `gud-minor-mode' to the found buffer to turn on the menu.
279 (with-current-buffer buf
280 (set (make-local-variable 'gud-minor-mode) minor-mode)
281 (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
282 (when (and gud-tooltip-mode
283 (memq gud-minor-mode '(gdbmi gdba)))
284 (make-local-variable 'gdb-define-alist)
285 (unless gdb-define-alist (gdb-create-define-alist))
286 (add-hook 'after-save-hook 'gdb-create-define-alist nil t))
287 (make-local-variable 'gud-keep-buffer))
290 ;; ======================================================================
291 ;; command definition
293 ;; This macro is used below to define some basic debugger interface commands.
294 ;; Of course you may use `gud-def' with any other debugger command, including
295 ;; user defined ones.
297 ;; A macro call like (gud-def FUNC NAME KEY DOC) expands to a form
298 ;; which defines FUNC to send the command NAME to the debugger, gives
299 ;; it the docstring DOC, and binds that function to KEY in the GUD
300 ;; major mode. The function is also bound in the global keymap with the
303 (defmacro gud-def (func cmd key &optional doc)
304 "Define FUNC to be a command sending STR and bound to KEY, with
305 optional doc string DOC. Certain %-escapes in the string arguments
306 are interpreted specially if present. These are:
308 %f -- Name (without directory) of current source file.
309 %F -- Name (without directory or extension) of current source file.
310 %d -- Directory of current source file.
311 %l -- Number of current source line.
312 %e -- Text of the C lvalue or function-call expression surrounding point.
313 %a -- Text of the hexadecimal address surrounding point.
314 %p -- Prefix argument to the command (if any) as a number.
315 %c -- Fully qualified class name derived from the expression
316 surrounding point (jdb only).
318 The `current' source file is the file of the current buffer (if
319 we're in a C file) or the source file current at the last break or
320 step (if we're in the GUD buffer).
321 The `current' line is that of the current buffer (if we're in a
322 source file) or the source line number at the last break or step (if
323 we're in the GUD buffer)."
326 ,@(if doc (list doc))
331 ,(if key `(local-set-key ,(concat "\C-c" key) ',func))
332 ,(if key `(global-set-key (vconcat gud-key-prefix ,key) ',func))))
334 ;; Where gud-display-frame should put the debugging arrow; a cons of
335 ;; (filename . line-number). This is set by the marker-filter, which scans
336 ;; the debugger's output for indications of the current program counter.
337 (defvar gud-last-frame nil)
339 ;; Used by gud-refresh, which should cause gud-display-frame to redisplay
340 ;; the last frame, even if it's been called before and gud-last-frame has
342 (defvar gud-last-last-frame nil)
344 ;; All debugger-specific information is collected here.
345 ;; Here's how it works, in case you ever need to add a debugger to the mode.
347 ;; Each entry must define the following at startup:
350 ;; comint-prompt-regexp
351 ;; gud-<name>-massage-args
352 ;; gud-<name>-marker-filter
353 ;; gud-<name>-find-file
355 ;; The job of the massage-args method is to modify the given list of
356 ;; debugger arguments before running the debugger.
358 ;; The job of the marker-filter method is to detect file/line markers in
359 ;; strings and set the global gud-last-frame to indicate what display
360 ;; action (if any) should be triggered by the marker. Note that only
361 ;; whatever the method *returns* is displayed in the buffer; thus, you
362 ;; can filter the debugger's output, interpreting some and passing on
365 ;; The job of the find-file method is to visit and return the buffer indicated
366 ;; by the car of gud-tag-frame. This may be a file name, a tag name, or
369 ;; ======================================================================
370 ;; speedbar support functions and variables.
371 (eval-when-compile (require 'speedbar)) ;For speedbar-with-attached-buffer.
373 (defvar gud-last-speedbar-stackframe nil
374 "Description of the currently displayed GUD stack.
375 t means that there is no stack, and we are in display-file mode.")
377 (defvar gud-speedbar-key-map nil
378 "Keymap used when in the buffers display mode.")
380 (defun gud-speedbar-item-info ()
381 "Display the data type of the watch expression element."
382 (let ((var (nth (- (line-number-at-pos (point)) 2) gdb-var-list)))
384 (speedbar-message "%s: %s" (nth 6 var) (nth 3 var))
385 (speedbar-message "%s" (nth 3 var)))))
387 (defun gud-install-speedbar-variables ()
388 "Install those variables used by speedbar to enhance gud/gdb."
389 (if gud-speedbar-key-map
391 (setq gud-speedbar-key-map (speedbar-make-specialized-keymap))
393 (define-key gud-speedbar-key-map "j" 'speedbar-edit-line)
394 (define-key gud-speedbar-key-map "e" 'speedbar-edit-line)
395 (define-key gud-speedbar-key-map "\C-m" 'speedbar-edit-line)
396 (define-key gud-speedbar-key-map " " 'speedbar-toggle-line-expansion)
397 (define-key gud-speedbar-key-map "[" 'speedbar-expand-line-descendants)
398 (define-key gud-speedbar-key-map "]" 'speedbar-contract-line-descendants)
399 (define-key gud-speedbar-key-map "D" 'gdb-var-delete)
400 (define-key gud-speedbar-key-map "p" 'gud-pp))
402 (speedbar-add-expansion-list '("GUD" gud-speedbar-menu-items
404 gud-expansion-speedbar-buttons))
407 'speedbar-mode-functions-list
408 '("GUD" (speedbar-item-info . gud-speedbar-item-info)
409 (speedbar-line-directory . ignore))))
411 (defvar gud-speedbar-menu-items
412 '(["Jump to stack frame" speedbar-edit-line
413 :visible (not (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
415 ["Edit value" speedbar-edit-line
416 :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
418 ["Delete expression" gdb-var-delete
419 :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
421 ["Auto raise frame" gdb-speedbar-auto-raise
422 :style toggle :selected gdb-speedbar-auto-raise
423 :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
425 "Additional menu items to add to the speedbar frame.")
427 ;; Make sure our special speedbar mode is loaded
428 (if (featurep 'speedbar)
429 (gud-install-speedbar-variables)
430 (add-hook 'speedbar-load-hook 'gud-install-speedbar-variables))
432 (defun gud-expansion-speedbar-buttons (directory zero)
433 "Wrapper for call to speedbar-add-expansion-list. DIRECTORY and
434 ZERO are not used, but are required by the caller."
435 (gud-speedbar-buttons gud-comint-buffer))
437 (defun gud-speedbar-buttons (buffer)
438 "Create a speedbar display based on the current state of GUD.
439 If the GUD BUFFER is not running a supported debugger, then turn
440 off the specialized speedbar mode. BUFFER is not used, but are
441 required by the caller."
442 (when (and gud-comint-buffer
443 ;; gud-comint-buffer might be killed
444 (buffer-name gud-comint-buffer))
445 (let* ((minor-mode (with-current-buffer buffer gud-minor-mode))
446 (window (get-buffer-window (current-buffer) 0))
447 (start (window-start window))
448 (p (window-point window)))
450 ((memq minor-mode '(gdbmi gdba))
452 (insert "Watch Expressions:\n")
453 (if gdb-speedbar-auto-raise
454 (raise-frame speedbar-frame))
455 (let ((var-list gdb-var-list) parent)
457 (let* (char (depth 0) (start 0) (var (car var-list))
458 (varnum (car var)) (expr (nth 1 var))
459 (type (nth 3 var)) (value (nth 4 var))
460 (status (nth 5 var)))
462 0 (length expr) 'face font-lock-variable-name-face expr)
464 0 (length type) 'face font-lock-type-face type)
465 (while (string-match "\\." varnum start)
466 (setq depth (1+ depth)
467 start (1+ (match-beginning 0))))
468 (if (eq depth 0) (setq parent nil))
469 (if (or (equal (nth 2 var) "0")
470 (and (equal (nth 2 var) "1")
471 (string-match "char \\*$" type)))
472 (speedbar-make-tag-line
474 (concat expr "\t" value)
475 (if (or parent (eq status 'out-of-scope))
478 (if gdb-show-changed-values
479 (or parent (case status
480 (changed 'font-lock-warning-face)
481 (out-of-scope 'shadow)
485 (if (eq status 'out-of-scope) (setq parent 'shadow))
486 (if (and (nth 1 var-list)
487 (string-match (concat varnum "\\.")
488 (car (nth 1 var-list))))
491 (if (string-match "\\*$" type)
492 (speedbar-make-tag-line
494 'gdb-speedbar-expand-node varnum
495 (concat expr "\t" type "\t" value)
496 (if (or parent (eq status 'out-of-scope))
499 (if gdb-show-changed-values
500 (or parent (case status
501 (changed 'font-lock-warning-face)
502 (out-of-scope 'shadow)
506 (speedbar-make-tag-line
508 'gdb-speedbar-expand-node varnum
509 (concat expr "\t" type)
511 (if (and (or parent status) gdb-show-changed-values)
514 (setq var-list (cdr var-list)))))
515 (t (unless (and (save-excursion
516 (goto-char (point-min))
517 (looking-at "Current Stack:"))
518 (equal gud-last-last-frame gud-last-speedbar-stackframe))
519 (let ((gud-frame-list
520 (cond ((eq minor-mode 'gdb)
521 (gud-gdb-get-stackframe buffer))
522 ;; Add more debuggers here!
523 (t (speedbar-remove-localized-speedbar-support buffer)
526 (if (not gud-frame-list)
527 (insert "No Stack frames\n")
528 (insert "Current Stack:\n"))
529 (dolist (frame gud-frame-list)
530 (insert (nth 1 frame) ":\n")
531 (if (= (length frame) 2)
533 (speedbar-insert-button (car frame)
534 'speedbar-directory-face
536 (speedbar-insert-button
539 'speedbar-highlight-face
540 (cond ((memq minor-mode '(gdbmi gdba gdb))
541 'gud-gdb-goto-stackframe)
542 (t (error "Should never be here")))
544 (setq gud-last-speedbar-stackframe gud-last-last-frame))))
545 (set-window-start window start)
546 (set-window-point window p))))
549 ;; ======================================================================
552 ;; History of argument lists passed to gdb.
553 (defvar gud-gdb-history nil)
555 (defcustom gud-gdb-command-name "gdb --annotate=3"
556 "Default command to execute an executable under the GDB debugger."
560 (defvar gud-gdb-marker-regexp
561 ;; This used to use path-separator instead of ":";
562 ;; however, we found that on both Windows 32 and MSDOS
563 ;; a colon is correct here.
564 (concat "\032\032\\(.:?[^" ":" "\n]*\\)" ":"
565 "\\([0-9]*\\)" ":" ".*\n"))
567 ;; There's no guarantee that Emacs will hand the filter the entire
568 ;; marker at once; it could be broken up across several strings. We
569 ;; might even receive a big chunk with several markers in it. If we
570 ;; receive a chunk of text which looks like it might contain the
571 ;; beginning of a marker, we save it here between calls to the
573 (defvar gud-marker-acc "")
574 (make-variable-buffer-local 'gud-marker-acc)
576 (defun gud-gdb-marker-filter (string)
577 (setq gud-marker-acc (concat gud-marker-acc string))
580 ;; Process all the complete markers in this chunk.
581 (while (string-match gud-gdb-marker-regexp gud-marker-acc)
584 ;; Extract the frame position from the marker.
585 gud-last-frame (cons (match-string 1 gud-marker-acc)
586 (string-to-number (match-string 2 gud-marker-acc)))
588 ;; Append any text before the marker to the output we're going
589 ;; to return - we don't include the marker in this text.
590 output (concat output
591 (substring gud-marker-acc 0 (match-beginning 0)))
593 ;; Set the accumulator to the remaining text.
594 gud-marker-acc (substring gud-marker-acc (match-end 0))))
596 ;; Check for annotations and change gud-minor-mode to 'gdba if
598 (while (string-match "\n\032\032\\(.*\\)\n" gud-marker-acc)
599 (let ((match (match-string 1 gud-marker-acc)))
601 ;; Pick up stopped annotation if attaching to process.
602 (if (string-equal match "stopped") (setq gdb-active-process t))
604 ;; Using annotations, switch to gud-gdba-marker-filter.
605 (when (string-equal match "prompt")
610 ;; Append any text before the marker to the output we're going
611 ;; to return - we don't include the marker in this text.
612 output (concat output
613 (substring gud-marker-acc 0 (match-beginning 0)))
615 ;; Set the accumulator to the remaining text.
617 gud-marker-acc (substring gud-marker-acc (match-end 0)))
619 ;; Pick up any errors that occur before first prompt annotation.
620 (if (string-equal match "error-begin")
621 (put-text-property 0 (length gud-marker-acc)
622 'face font-lock-warning-face
625 ;; Does the remaining text look like it might end with the
626 ;; beginning of another marker? If it does, then keep it in
627 ;; gud-marker-acc until we receive the rest of it. Since we
628 ;; know the full marker regexp above failed, it's pretty simple to
629 ;; test for marker starts.
630 (if (string-match "\n\\(\032.*\\)?\\'" gud-marker-acc)
632 ;; Everything before the potential marker start can be output.
633 (setq output (concat output (substring gud-marker-acc
634 0 (match-beginning 0))))
636 ;; Everything after, we save, to combine with later input.
638 (substring gud-marker-acc (match-beginning 0))))
640 (setq output (concat output gud-marker-acc)
645 (easy-mmode-defmap gud-minibuffer-local-map
646 '(("\C-i" . comint-dynamic-complete-filename))
647 "Keymap for minibuffer prompting of gud startup command."
648 :inherit minibuffer-local-map)
650 (defun gud-query-cmdline (minor-mode &optional init)
651 (let* ((hist-sym (gud-symbol 'history nil minor-mode))
652 (cmd-name (gud-val 'command-name minor-mode)))
653 (unless (boundp hist-sym) (set hist-sym nil))
654 (read-from-minibuffer
655 (format "Run %s (like this): " minor-mode)
656 (or (car-safe (symbol-value hist-sym))
657 (concat (or cmd-name (symbol-name minor-mode))
661 (dolist (f (directory-files default-directory) file)
662 (if (and (file-executable-p f)
663 (not (file-directory-p f))
665 (file-newer-than-file-p f file)))
667 gud-minibuffer-local-map nil
670 (defvar gdb-first-prompt t)
672 (defvar gud-filter-pending-text nil
673 "Non-nil means this is text that has been saved for later in `gud-filter'.")
676 (defun gdb (command-line)
677 "Run gdb on program FILE in buffer *gud-FILE*.
678 The directory containing FILE becomes the initial working
679 directory and source-file directory for your debugger. By
680 default this command starts GDB using a graphical interface. See
681 `gdba' for more information.
683 To run GDB in text command mode, set `gud-gdb-command-name' to
684 \"gdb --fullname\" and include the pathname, if necessary."
685 (interactive (list (gud-query-cmdline 'gdb)))
687 (if (and gud-comint-buffer
688 (buffer-name gud-comint-buffer)
689 (get-buffer-process gud-comint-buffer)
690 (with-current-buffer gud-comint-buffer (eq gud-minor-mode 'gdba)))
691 (error "Multiple debugging is only supported with \"gdb --fullname\""))
693 (gud-common-init command-line nil 'gud-gdb-marker-filter)
694 (set (make-local-variable 'gud-minor-mode) 'gdb)
696 (gud-def gud-break "break %f:%l" "\C-b" "Set breakpoint at current line.")
697 (gud-def gud-tbreak "tbreak %f:%l" "\C-t"
698 "Set temporary breakpoint at current line.")
699 (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line")
700 (gud-def gud-step "step %p" "\C-s" "Step one source line with display.")
701 (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.")
702 (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).")
703 (gud-def gud-nexti "nexti %p" nil "Step one instruction (skip functions).")
704 (gud-def gud-cont "cont" "\C-r" "Continue with display.")
705 (gud-def gud-finish "finish" "\C-f" "Finish executing current function.")
707 (progn (gud-call "tbreak %f:%l") (gud-call "jump %f:%l"))
708 "\C-j" "Set execution address to current line.")
710 (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).")
711 (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).")
712 (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.")
713 (gud-def gud-pstar "print* %e" nil
714 "Evaluate C dereferenced pointer expression at point.")
716 ;; For debugging Emacs only.
717 (gud-def gud-pv "pv1 %e" "\C-v" "Print the value of the lisp variable.")
719 (gud-def gud-until "until %l" "\C-u" "Continue to current line.")
720 (gud-def gud-run "run" nil "Run the program.")
722 (local-set-key "\C-i" 'gud-gdb-complete-command)
723 (setq comint-prompt-regexp "^(.*gdb[+]?) *")
724 (setq paragraph-start comint-prompt-regexp)
725 (setq gdb-first-prompt t)
726 (setq gud-filter-pending-text nil)
727 (run-hooks 'gdb-mode-hook))
729 ;; One of the nice features of GDB is its impressive support for
730 ;; context-sensitive command completion. We preserve that feature
731 ;; in the GUD buffer by using a GDB command designed just for Emacs.
733 ;; The completion process filter indicates when it is finished.
734 (defvar gud-gdb-fetch-lines-in-progress)
736 ;; Since output may arrive in fragments we accumulate partials strings here.
737 (defvar gud-gdb-fetch-lines-string)
739 ;; We need to know how much of the completion to chop off.
740 (defvar gud-gdb-fetch-lines-break)
742 ;; The completion list is constructed by the process filter.
743 (defvar gud-gdb-fetched-lines)
745 (defun gud-gdb-complete-command (&optional command a b)
746 "Perform completion on the GDB command preceding point.
747 This is implemented using the GDB `complete' command which isn't
748 available with older versions of GDB."
751 ;; Used by gud-watch in mini-buffer.
752 (setq command (concat "p " command))
753 ;; Used in GUD buffer.
755 (setq command (buffer-substring (comint-line-beginning-position) end))))
757 ;; Find the word break. This match will always succeed.
758 (and (string-match "\\(\\`\\| \\)\\([^ ]*\\)\\'" command)
759 (substring command (match-beginning 2))))
761 (gud-gdb-run-command-fetch-lines (concat "complete " command)
763 ;; From string-match above.
764 (match-beginning 2))))
765 ;; Protect against old versions of GDB.
767 (string-match "^Undefined command: \"complete\"" (car complete-list))
768 (error "This version of GDB doesn't support the `complete' command"))
769 ;; Sort the list like readline.
770 (setq complete-list (sort complete-list (function string-lessp)))
771 ;; Remove duplicates.
772 (let ((first complete-list)
773 (second (cdr complete-list)))
775 (if (string-equal (car first) (car second))
776 (setcdr first (setq second (cdr second)))
778 second (cdr second)))))
779 ;; Add a trailing single quote if there is a unique completion
780 ;; and it contains an odd number of unquoted single quotes.
781 (and (= (length complete-list) 1)
782 (let ((str (car complete-list))
785 (while (string-match "\\([^'\\]\\|\\\\'\\)*'" str pos)
786 (setq count (1+ count)
788 (and (= (mod count 2) 1)
789 (setq complete-list (list (concat str "'"))))))
790 ;; Let comint handle the rest.
791 (comint-dynamic-simple-complete command-word complete-list)))
793 ;; The completion process filter is installed temporarily to slurp the
794 ;; output of GDB up to the next prompt and build the completion list.
795 (defun gud-gdb-fetch-lines-filter (string filter)
796 "Filter used to read the list of lines output by a command.
797 STRING is the output to filter.
798 It is passed through FILTER before we look at it."
799 (setq string (funcall filter string))
800 (setq string (concat gud-gdb-fetch-lines-string string))
801 (while (string-match "\n" string)
802 (push (substring string gud-gdb-fetch-lines-break (match-beginning 0))
803 gud-gdb-fetched-lines)
804 (setq string (substring string (match-end 0))))
805 (if (string-match comint-prompt-regexp string)
807 (setq gud-gdb-fetch-lines-in-progress nil)
810 (setq gud-gdb-fetch-lines-string string)
813 ;; gdb speedbar functions
815 (defun gud-gdb-goto-stackframe (text token indent)
816 "Goto the stackframe described by TEXT, TOKEN, and INDENT."
817 (speedbar-with-attached-buffer
818 (gud-basic-call (concat "server frame " (nth 1 token)))
821 (defvar gud-gdb-fetched-stack-frame nil
822 "Stack frames we are fetching from GDB.")
824 ;(defun gud-gdb-get-scope-data (text token indent)
825 ; ;; checkdoc-params: (indent)
826 ; "Fetch data associated with a stack frame, and expand/contract it.
827 ;Data to do this is retrieved from TEXT and TOKEN."
828 ; (let ((args nil) (scope nil))
829 ; (gud-gdb-run-command-fetch-lines "info args")
831 ; (gud-gdb-run-command-fetch-lines "info local")
835 (defun gud-gdb-get-stackframe (buffer)
836 "Extract the current stack frame out of the GUD GDB BUFFER."
838 (fetched-stack-frame-list
839 (gud-gdb-run-command-fetch-lines "server backtrace" buffer)))
840 (if (and (car fetched-stack-frame-list)
841 (string-match "No stack" (car fetched-stack-frame-list)))
842 ;; Go into some other mode???
844 (dolist (e fetched-stack-frame-list)
845 (let ((name nil) (num nil))
847 (string-match "^#\\([0-9]+\\) +[0-9a-fx]+ in \\([:0-9a-zA-Z_]+\\) (" e)
848 (string-match "^#\\([0-9]+\\) +\\([:0-9a-zA-Z_]+\\) (" e)))
849 (if (not (string-match
850 "at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e))
853 (list (nth 0 (car newlst))
856 (match-string 2 e))))
857 (setq num (match-string 1 e)
858 name (match-string 2 e))
862 "at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e)
863 (list name num (match-string 1 e)
869 ;(defun gud-gdb-selected-frame-info (buffer)
870 ; "Learn GDB information for the currently selected stack frame in BUFFER."
873 (defun gud-gdb-run-command-fetch-lines (command buffer &optional skip)
874 "Run COMMAND, and return the list of lines it outputs.
875 BUFFER is the current buffer which may be the GUD buffer in which to run.
876 SKIP is the number of chars to skip on each lines, it defaults to 0."
877 (with-current-buffer gud-comint-buffer
878 (if (and (eq gud-comint-buffer buffer)
880 (goto-char (point-max))
882 (not (looking-at comint-prompt-regexp))))
884 ;; Much of this copied from GDB complete, but I'm grabbing the stack
886 (let ((gud-gdb-fetch-lines-in-progress t)
887 (gud-gdb-fetched-lines nil)
888 (gud-gdb-fetch-lines-string nil)
889 (gud-gdb-fetch-lines-break (or skip 0))
892 (gud-gdb-fetch-lines-filter string ',gud-marker-filter))))
893 ;; Issue the command to GDB.
894 (gud-basic-call command)
896 (while gud-gdb-fetch-lines-in-progress
897 (accept-process-output (get-buffer-process gud-comint-buffer)))
898 (nreverse gud-gdb-fetched-lines)))))
901 ;; ======================================================================
904 ;; History of argument lists passed to sdb.
905 (defvar gud-sdb-history nil)
907 (defvar gud-sdb-needs-tags (not (file-exists-p "/var"))
908 "If nil, we're on a System V Release 4 and don't need the tags hack.")
910 (defvar gud-sdb-lastfile nil)
912 (defun gud-sdb-marker-filter (string)
914 (if gud-marker-acc (concat gud-marker-acc string) string))
916 ;; Process all complete markers in this chunk
919 ;; System V Release 3.2 uses this format
920 ((string-match "\\(^\\|\n\\)\\*?\\(0x\\w* in \\)?\\([^:\n]*\\):\\([0-9]*\\):.*\n"
921 gud-marker-acc start)
923 (cons (match-string 3 gud-marker-acc)
924 (string-to-number (match-string 4 gud-marker-acc)))))
925 ;; System V Release 4.0 quite often clumps two lines together
926 ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n\\([0-9]+\\):"
927 gud-marker-acc start)
928 (setq gud-sdb-lastfile (match-string 2 gud-marker-acc))
930 (cons gud-sdb-lastfile
931 (string-to-number (match-string 3 gud-marker-acc)))))
932 ;; System V Release 4.0
933 ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n"
934 gud-marker-acc start)
935 (setq gud-sdb-lastfile (match-string 2 gud-marker-acc)))
936 ((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):"
937 gud-marker-acc start))
939 (cons gud-sdb-lastfile
940 (string-to-number (match-string 1 gud-marker-acc)))))
942 (setq gud-sdb-lastfile nil)))
943 (setq start (match-end 0)))
945 ;; Search for the last incomplete line in this chunk
946 (while (string-match "\n" gud-marker-acc start)
947 (setq start (match-end 0)))
949 ;; If we have an incomplete line, store it in gud-marker-acc.
950 (setq gud-marker-acc (substring gud-marker-acc (or start 0))))
953 (defun gud-sdb-find-file (f)
954 (if gud-sdb-needs-tags (find-tag-noselect f) (find-file-noselect f)))
957 (defun sdb (command-line)
958 "Run sdb on program FILE in buffer *gud-FILE*.
959 The directory containing FILE becomes the initial working directory
960 and source-file directory for your debugger."
961 (interactive (list (gud-query-cmdline 'sdb)))
963 (if gud-sdb-needs-tags (require 'etags))
964 (if (and gud-sdb-needs-tags
965 (not (and (boundp 'tags-file-name)
966 (stringp tags-file-name)
967 (file-exists-p tags-file-name))))
968 (error "The sdb support requires a valid tags table to work"))
970 (gud-common-init command-line nil 'gud-sdb-marker-filter 'gud-sdb-find-file)
971 (set (make-local-variable 'gud-minor-mode) 'sdb)
973 (gud-def gud-break "%l b" "\C-b" "Set breakpoint at current line.")
974 (gud-def gud-tbreak "%l c" "\C-t" "Set temporary breakpoint at current line.")
975 (gud-def gud-remove "%l d" "\C-d" "Remove breakpoint at current line")
976 (gud-def gud-step "s %p" "\C-s" "Step one source line with display.")
977 (gud-def gud-stepi "i %p" "\C-i" "Step one instruction with display.")
978 (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).")
979 (gud-def gud-cont "c" "\C-r" "Continue with display.")
980 (gud-def gud-print "%e/" "\C-p" "Evaluate C expression at point.")
982 (setq comint-prompt-regexp "\\(^\\|\n\\)\\*")
983 (setq paragraph-start comint-prompt-regexp)
984 (run-hooks 'sdb-mode-hook)
987 ;; ======================================================================
990 ;; History of argument lists passed to dbx.
991 (defvar gud-dbx-history nil)
993 (defcustom gud-dbx-directories nil
994 "*A list of directories that dbx should search for source code.
995 If nil, only source files in the program directory
996 will be known to dbx.
998 The file names should be absolute, or relative to the directory
999 containing the executable being debugged."
1000 :type '(choice (const :tag "Current Directory" nil)
1005 (defun gud-dbx-massage-args (file args)
1006 (nconc (let ((directories gud-dbx-directories)
1009 (setq result (cons (car directories) (cons "-I" result)))
1010 (setq directories (cdr directories)))
1014 (defun gud-dbx-marker-filter (string)
1015 (setq gud-marker-acc (if gud-marker-acc (concat gud-marker-acc string) string))
1018 ;; Process all complete markers in this chunk.
1019 (while (or (string-match
1020 "stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\""
1021 gud-marker-acc start)
1023 "signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\""
1024 gud-marker-acc start))
1025 (setq gud-last-frame
1026 (cons (match-string 2 gud-marker-acc)
1027 (string-to-number (match-string 1 gud-marker-acc)))
1028 start (match-end 0)))
1030 ;; Search for the last incomplete line in this chunk
1031 (while (string-match "\n" gud-marker-acc start)
1032 (setq start (match-end 0)))
1034 ;; If the incomplete line APPEARS to begin with another marker, keep it
1035 ;; in the accumulator. Otherwise, clear the accumulator to avoid an
1036 ;; unnecessary concat during the next call.
1037 (setq gud-marker-acc
1038 (if (string-match "\\(stopped\\|signal\\)" gud-marker-acc start)
1039 (substring gud-marker-acc (match-beginning 0))
1043 ;; Functions for Mips-style dbx. Given the option `-emacs', documented in
1044 ;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's.
1046 (or (string-match "^mips-[^-]*-ultrix" system-configuration)
1047 ;; We haven't tested gud on this system:
1048 (string-match "^mips-[^-]*-riscos" system-configuration)
1049 ;; It's documented on OSF/1.3
1050 (string-match "^mips-[^-]*-osf1" system-configuration)
1051 (string-match "^alpha[^-]*-[^-]*-osf" system-configuration))
1052 "Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').")
1054 (defvar gud-dbx-command-name
1055 (concat "dbx" (if gud-mips-p " -emacs")))
1057 ;; This is just like the gdb one except for the regexps since we need to cope
1058 ;; with an optional breakpoint number in [] before the ^Z^Z
1059 (defun gud-mipsdbx-marker-filter (string)
1060 (setq gud-marker-acc (concat gud-marker-acc string))
1063 ;; Process all the complete markers in this chunk.
1064 (while (string-match
1065 ;; This is like th gdb marker but with an optional
1066 ;; leading break point number like `[1] '
1067 "[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n"
1071 ;; Extract the frame position from the marker.
1073 (cons (match-string 1 gud-marker-acc)
1074 (string-to-number (match-string 2 gud-marker-acc)))
1076 ;; Append any text before the marker to the output we're going
1077 ;; to return - we don't include the marker in this text.
1078 output (concat output
1079 (substring gud-marker-acc 0 (match-beginning 0)))
1081 ;; Set the accumulator to the remaining text.
1082 gud-marker-acc (substring gud-marker-acc (match-end 0))))
1084 ;; Does the remaining text look like it might end with the
1085 ;; beginning of another marker? If it does, then keep it in
1086 ;; gud-marker-acc until we receive the rest of it. Since we
1087 ;; know the full marker regexp above failed, it's pretty simple to
1088 ;; test for marker starts.
1089 (if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc)
1091 ;; Everything before the potential marker start can be output.
1092 (setq output (concat output (substring gud-marker-acc
1093 0 (match-beginning 0))))
1095 ;; Everything after, we save, to combine with later input.
1096 (setq gud-marker-acc
1097 (substring gud-marker-acc (match-beginning 0))))
1099 (setq output (concat output gud-marker-acc)
1104 ;; The dbx in IRIX is a pain. It doesn't print the file name when
1105 ;; stopping at a breakpoint (but you do get it from the `up' and
1106 ;; `down' commands...). The only way to extract the information seems
1107 ;; to be with a `file' command, although the current line number is
1108 ;; available in $curline. Thus we have to look for output which
1109 ;; appears to indicate a breakpoint. Then we prod the dbx sub-process
1110 ;; to output the information we want with a combination of the
1111 ;; `printf' and `file' commands as a pseudo marker which we can
1112 ;; recognise next time through the marker-filter. This would be like
1113 ;; the gdb marker but you can't get the file name without a newline...
1114 ;; Note that gud-remove won't work since Irix dbx expects a breakpoint
1115 ;; number rather than a line number etc. Maybe this could be made to
1116 ;; work by listing all the breakpoints and picking the one(s) with the
1117 ;; correct line number, but life's too short.
1118 ;; d.love@dl.ac.uk (Dave Love) can be blamed for this
1121 (and (string-match "^mips-[^-]*-irix" system-configuration)
1122 (not (string-match "irix[6-9]\\.[1-9]" system-configuration)))
1123 "Non-nil to assume the interface appropriate for IRIX dbx.
1124 This works in IRIX 4, 5 and 6, but `gud-dbx-use-stopformat-p' provides
1125 a better solution in 6.1 upwards.")
1126 (defvar gud-dbx-use-stopformat-p
1127 (string-match "irix[6-9]\\.[1-9]" system-configuration)
1128 "Non-nil to use the dbx feature present at least from Irix 6.1
1129 whereby $stopformat=1 produces an output format compatiable with
1130 `gud-dbx-marker-filter'.")
1131 ;; [Irix dbx seems to be a moving target. The dbx output changed
1132 ;; subtly sometime between OS v4.0.5 and v5.2 so that, for instance,
1133 ;; the output from `up' is no longer spotted by gud (and it's probably
1134 ;; not distinctive enough to try to match it -- use C-<, C->
1135 ;; exclusively) . For 5.3 and 6.0, the $curline variable changed to
1136 ;; `long long'(why?!), so the printf stuff needed changing. The line
1137 ;; number was cast to `long' as a compromise between the new `long
1138 ;; long' and the original `int'. This is reported not to work in 6.2,
1139 ;; so it's changed back to int -- don't make your sources too long.
1140 ;; From Irix6.1 (but not 6.0?) dbx supports an undocumented feature
1141 ;; whereby `set $stopformat=1' reportedly produces output compatible
1142 ;; with `gud-dbx-marker-filter', which we prefer.
1144 ;; The process filter is also somewhat
1145 ;; unreliable, sometimes not spotting the markers; I don't know
1146 ;; whether there's anything that can be done about that. It would be
1147 ;; much better if SGI could be persuaded to (re?)instate the MIPS
1148 ;; -emacs flag for gdb-like output (which ought to be possible as most
1149 ;; of the communication I've had over it has been from sgi.com).]
1151 ;; this filter is influenced by the xdb one rather than the gdb one
1152 (defun gud-irixdbx-marker-filter (string)
1153 (let (result (case-fold-search nil))
1154 (if (or (string-match comint-prompt-regexp string)
1155 (string-match ".*\012" string))
1156 (setq result (concat gud-marker-acc string)
1158 (setq gud-marker-acc (concat gud-marker-acc string)))
1161 ;; look for breakpoint or signal indication e.g.:
1162 ;; [2] Process 1267 (pplot) stopped at [params:338 ,0x400ec0]
1163 ;; Process 1281 (pplot) stopped at [params:339 ,0x400ec8]
1164 ;; Process 1270 (pplot) Floating point exception [._read._read:16 ,0x452188]
1166 "^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n"
1168 ;; prod dbx into printing out the line number and file
1169 ;; name in a form we can grok as below
1170 (process-send-string (get-buffer-process gud-comint-buffer)
1171 "printf \"\032\032%1d:\",(int)$curline;file\n"))
1172 ;; look for result of, say, "up" e.g.:
1173 ;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c]
1174 ;; (this will also catch one of the lines printed by "where")
1176 "^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n"
1178 (let ((file (match-string 1 result)))
1179 (if (file-exists-p file)
1180 (setq gud-last-frame
1181 (cons (match-string 1 result)
1182 (string-to-number (match-string 2 result))))))
1184 ((string-match ; kluged-up marker as above
1185 "\032\032\\([0-9]*\\):\\(.*\\)\n" result)
1186 (let ((file (gud-file-name (match-string 2 result))))
1187 (if (and file (file-exists-p file))
1188 (setq gud-last-frame
1190 (string-to-number (match-string 1 result))))))
1191 (setq result (substring result 0 (match-beginning 0))))))
1194 (defvar gud-dgux-p (string-match "-dgux" system-configuration)
1195 "Non-nil means to assume the interface approriate for DG/UX dbx.
1196 This was tested using R4.11.")
1198 ;; There are a couple of differences between DG's dbx output and normal
1199 ;; dbx output which make it nontrivial to integrate this into the
1200 ;; standard dbx-marker-filter (mainly, there are a different number of
1201 ;; backreferences). The markers look like:
1203 ;; (0) Stopped at line 10, routine main(argc=1, argv=0xeffff0e0), file t.c
1205 ;; from breakpoints (the `(0)' there isn't constant, it's the breakpoint
1208 ;; Stopped at line 13, routine main(argc=1, argv=0xeffff0e0), file t.c
1212 ;; Frame 21, line 974, routine command_loop(), file keyboard.c
1214 ;; from up/down/where.
1216 (defun gud-dguxdbx-marker-filter (string)
1217 (setq gud-marker-acc (if gud-marker-acc
1218 (concat gud-marker-acc string)
1220 (let ((re (concat "^\\(\\(([0-9]+) \\)?Stopped at\\|Frame [0-9]+,\\)"
1221 " line \\([0-9]+\\), routine .*, file \\([^ \t\n]+\\)"))
1223 ;; Process all complete markers in this chunk.
1224 (while (string-match re gud-marker-acc start)
1225 (setq gud-last-frame
1226 (cons (match-string 4 gud-marker-acc)
1227 (string-to-number (match-string 3 gud-marker-acc)))
1228 start (match-end 0)))
1230 ;; Search for the last incomplete line in this chunk
1231 (while (string-match "\n" gud-marker-acc start)
1232 (setq start (match-end 0)))
1234 ;; If the incomplete line APPEARS to begin with another marker, keep it
1235 ;; in the accumulator. Otherwise, clear the accumulator to avoid an
1236 ;; unnecessary concat during the next call.
1237 (setq gud-marker-acc
1238 (if (string-match "Stopped\\|Frame" gud-marker-acc start)
1239 (substring gud-marker-acc (match-beginning 0))
1244 (defun dbx (command-line)
1245 "Run dbx on program FILE in buffer *gud-FILE*.
1246 The directory containing FILE becomes the initial working directory
1247 and source-file directory for your debugger."
1248 (interactive (list (gud-query-cmdline 'dbx)))
1252 (gud-common-init command-line nil 'gud-mipsdbx-marker-filter))
1254 (gud-common-init command-line 'gud-dbx-massage-args
1255 'gud-irixdbx-marker-filter))
1257 (gud-common-init command-line 'gud-dbx-massage-args
1258 'gud-dguxdbx-marker-filter))
1260 (gud-common-init command-line 'gud-dbx-massage-args
1261 'gud-dbx-marker-filter)))
1263 (set (make-local-variable 'gud-minor-mode) 'dbx)
1267 (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.")
1268 (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.")
1269 (gud-def gud-break "stop at \"%f\":%l"
1270 "\C-b" "Set breakpoint at current line.")
1271 (gud-def gud-finish "return" "\C-f" "Finish executing current function."))
1273 (gud-def gud-break "stop at \"%d%f\":%l"
1274 "\C-b" "Set breakpoint at current line.")
1275 (gud-def gud-finish "return" "\C-f" "Finish executing current function.")
1276 (gud-def gud-up "up %p; printf \"\032\032%1d:\",(int)$curline;file\n"
1277 "<" "Up (numeric arg) stack frames.")
1278 (gud-def gud-down "down %p; printf \"\032\032%1d:\",(int)$curline;file\n"
1279 ">" "Down (numeric arg) stack frames.")
1280 ;; Make dbx give out the source location info that we need.
1281 (process-send-string (get-buffer-process gud-comint-buffer)
1282 "printf \"\032\032%1d:\",(int)$curline;file\n"))
1284 (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.")
1285 (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.")
1286 (gud-def gud-break "file \"%d%f\"\nstop at %l"
1287 "\C-b" "Set breakpoint at current line.")
1288 (if gud-dbx-use-stopformat-p
1289 (process-send-string (get-buffer-process gud-comint-buffer)
1290 "set $stopformat=1\n"))))
1292 (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line")
1293 (gud-def gud-step "step %p" "\C-s" "Step one line with display.")
1294 (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.")
1295 (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).")
1296 (gud-def gud-nexti "nexti %p" nil "Step one instruction (skip functions).")
1297 (gud-def gud-cont "cont" "\C-r" "Continue with display.")
1298 (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.")
1299 (gud-def gud-run "run" nil "Run the program.")
1301 (setq comint-prompt-regexp "^[^)\n]*dbx) *")
1302 (setq paragraph-start comint-prompt-regexp)
1303 (run-hooks 'dbx-mode-hook)
1306 ;; ======================================================================
1307 ;; xdb (HP PARISC debugger) functions
1309 ;; History of argument lists passed to xdb.
1310 (defvar gud-xdb-history nil)
1312 (defcustom gud-xdb-directories nil
1313 "*A list of directories that xdb should search for source code.
1314 If nil, only source files in the program directory
1315 will be known to xdb.
1317 The file names should be absolute, or relative to the directory
1318 containing the executable being debugged."
1319 :type '(choice (const :tag "Current Directory" nil)
1324 (defun gud-xdb-massage-args (file args)
1325 (nconc (let ((directories gud-xdb-directories)
1328 (setq result (cons (car directories) (cons "-d" result)))
1329 (setq directories (cdr directories)))
1333 ;; xdb does not print the lines all at once, so we have to accumulate them
1334 (defun gud-xdb-marker-filter (string)
1336 (if (or (string-match comint-prompt-regexp string)
1337 (string-match ".*\012" string))
1338 (setq result (concat gud-marker-acc string)
1340 (setq gud-marker-acc (concat gud-marker-acc string)))
1342 (if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\)[: ]"
1344 (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):"
1346 (let ((line (string-to-number (match-string 2 result)))
1347 (file (gud-file-name (match-string 1 result))))
1349 (setq gud-last-frame (cons file line))))))
1353 (defun xdb (command-line)
1354 "Run xdb on program FILE in buffer *gud-FILE*.
1355 The directory containing FILE becomes the initial working directory
1356 and source-file directory for your debugger.
1358 You can set the variable `gud-xdb-directories' to a list of program source
1359 directories if your program contains sources from more than one directory."
1360 (interactive (list (gud-query-cmdline 'xdb)))
1362 (gud-common-init command-line 'gud-xdb-massage-args
1363 'gud-xdb-marker-filter)
1364 (set (make-local-variable 'gud-minor-mode) 'xdb)
1366 (gud-def gud-break "b %f:%l" "\C-b" "Set breakpoint at current line.")
1367 (gud-def gud-tbreak "b %f:%l\\t" "\C-t"
1368 "Set temporary breakpoint at current line.")
1369 (gud-def gud-remove "db" "\C-d" "Remove breakpoint at current line")
1370 (gud-def gud-step "s %p" "\C-s" "Step one line with display.")
1371 (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).")
1372 (gud-def gud-cont "c" "\C-r" "Continue with display.")
1373 (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.")
1374 (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.")
1375 (gud-def gud-finish "bu\\t" "\C-f" "Finish executing current function.")
1376 (gud-def gud-print "p %e" "\C-p" "Evaluate C expression at point.")
1378 (setq comint-prompt-regexp "^>")
1379 (setq paragraph-start comint-prompt-regexp)
1380 (run-hooks 'xdb-mode-hook))
1382 ;; ======================================================================
1385 ;; History of argument lists passed to perldb.
1386 (defvar gud-perldb-history nil)
1388 (defun gud-perldb-massage-args (file args)
1389 "Convert a command line as would be typed normally to run perldb
1390 into one that invokes an Emacs-enabled debugging session.
1391 \"-emacs\" is inserted where it will be $ARGV[0] (see perl5db.pl)."
1392 ;; FIXME: what if the command is `make perldb' and doesn't accept those extra
1394 (let* ((new-args nil)
1396 (shift (lambda () (push (pop args) new-args))))
1398 ;; Pass all switches and -e scripts through.
1400 (string-match "^-" (car args))
1401 (not (equal "-" (car args)))
1402 (not (equal "--" (car args))))
1403 (when (equal "-e" (car args))
1404 ;; -e goes with the next arg, so shift one extra.
1406 ;; -e as the last arg is an error in Perl.
1407 (error "No code specified for -e"))
1413 (string-match "^-" (car args)))
1414 (error "Can't use stdin as the script to debug"))
1415 ;; This is the program name.
1418 ;; If -e specified, make sure there is a -- so -emacs is not taken
1420 (if (and args (equal "--" (car args)))
1422 (and seen-e (push "--" new-args)))
1424 (push "-emacs" new-args)
1428 (nreverse new-args)))
1430 ;; There's no guarantee that Emacs will hand the filter the entire
1431 ;; marker at once; it could be broken up across several strings. We
1432 ;; might even receive a big chunk with several markers in it. If we
1433 ;; receive a chunk of text which looks like it might contain the
1434 ;; beginning of a marker, we save it here between calls to the
1436 (defun gud-perldb-marker-filter (string)
1437 (setq gud-marker-acc (concat gud-marker-acc string))
1440 ;; Process all the complete markers in this chunk.
1441 (while (string-match "\032\032\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\):.*\n"
1445 ;; Extract the frame position from the marker.
1447 (cons (match-string 1 gud-marker-acc)
1448 (string-to-number (match-string 3 gud-marker-acc)))
1450 ;; Append any text before the marker to the output we're going
1451 ;; to return - we don't include the marker in this text.
1452 output (concat output
1453 (substring gud-marker-acc 0 (match-beginning 0)))
1455 ;; Set the accumulator to the remaining text.
1456 gud-marker-acc (substring gud-marker-acc (match-end 0))))
1458 ;; Does the remaining text look like it might end with the
1459 ;; beginning of another marker? If it does, then keep it in
1460 ;; gud-marker-acc until we receive the rest of it. Since we
1461 ;; know the full marker regexp above failed, it's pretty simple to
1462 ;; test for marker starts.
1463 (if (string-match "\032.*\\'" gud-marker-acc)
1465 ;; Everything before the potential marker start can be output.
1466 (setq output (concat output (substring gud-marker-acc
1467 0 (match-beginning 0))))
1469 ;; Everything after, we save, to combine with later input.
1470 (setq gud-marker-acc
1471 (substring gud-marker-acc (match-beginning 0))))
1473 (setq output (concat output gud-marker-acc)
1478 (defcustom gud-perldb-command-name "perl -d"
1479 "Default command to execute a Perl script under debugger."
1484 (defun perldb (command-line)
1485 "Run perldb on program FILE in buffer *gud-FILE*.
1486 The directory containing FILE becomes the initial working directory
1487 and source-file directory for your debugger."
1489 (list (gud-query-cmdline 'perldb
1490 (concat (or (buffer-file-name) "-e 0") " "))))
1492 (gud-common-init command-line 'gud-perldb-massage-args
1493 'gud-perldb-marker-filter)
1494 (set (make-local-variable 'gud-minor-mode) 'perldb)
1496 (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.")
1497 (gud-def gud-remove "B %l" "\C-d" "Remove breakpoint at current line")
1498 (gud-def gud-step "s" "\C-s" "Step one source line with display.")
1499 (gud-def gud-next "n" "\C-n" "Step one line (skip functions).")
1500 (gud-def gud-cont "c" "\C-r" "Continue with display.")
1501 ; (gud-def gud-finish "finish" "\C-f" "Finish executing current function.")
1502 ; (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).")
1503 ; (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).")
1504 (gud-def gud-print "p %e" "\C-p" "Evaluate perl expression at point.")
1505 (gud-def gud-until "c %l" "\C-u" "Continue to current line.")
1508 (setq comint-prompt-regexp "^ DB<+[0-9]+>+ ")
1509 (setq paragraph-start comint-prompt-regexp)
1510 (run-hooks 'perldb-mode-hook))
1512 ;; ======================================================================
1513 ;; pdb (Python debugger) functions
1515 ;; History of argument lists passed to pdb.
1516 (defvar gud-pdb-history nil)
1518 ;; Last group is for return value, e.g. "> test.py(2)foo()->None"
1519 ;; Either file or function name may be omitted: "> <string>(0)?()"
1520 (defvar gud-pdb-marker-regexp
1521 "^> \\([-a-zA-Z0-9_/.:\\]*\\|<string>\\)(\\([0-9]+\\))\\([a-zA-Z0-9_]*\\|\\?\\)()\\(->[^\n]*\\)?\n")
1522 (defvar gud-pdb-marker-regexp-file-group 1)
1523 (defvar gud-pdb-marker-regexp-line-group 2)
1524 (defvar gud-pdb-marker-regexp-fnname-group 3)
1526 (defvar gud-pdb-marker-regexp-start "^> ")
1528 ;; There's no guarantee that Emacs will hand the filter the entire
1529 ;; marker at once; it could be broken up across several strings. We
1530 ;; might even receive a big chunk with several markers in it. If we
1531 ;; receive a chunk of text which looks like it might contain the
1532 ;; beginning of a marker, we save it here between calls to the
1534 (defun gud-pdb-marker-filter (string)
1535 (setq gud-marker-acc (concat gud-marker-acc string))
1538 ;; Process all the complete markers in this chunk.
1539 (while (string-match gud-pdb-marker-regexp gud-marker-acc)
1542 ;; Extract the frame position from the marker.
1544 (let ((file (match-string gud-pdb-marker-regexp-file-group
1546 (line (string-to-number
1547 (match-string gud-pdb-marker-regexp-line-group
1549 (if (string-equal file "<string>")
1553 ;; Output everything instead of the below
1554 output (concat output (substring gud-marker-acc 0 (match-end 0)))
1555 ;; ;; Append any text before the marker to the output we're going
1556 ;; ;; to return - we don't include the marker in this text.
1557 ;; output (concat output
1558 ;; (substring gud-marker-acc 0 (match-beginning 0)))
1560 ;; Set the accumulator to the remaining text.
1561 gud-marker-acc (substring gud-marker-acc (match-end 0))))
1563 ;; Does the remaining text look like it might end with the
1564 ;; beginning of another marker? If it does, then keep it in
1565 ;; gud-marker-acc until we receive the rest of it. Since we
1566 ;; know the full marker regexp above failed, it's pretty simple to
1567 ;; test for marker starts.
1568 (if (string-match gud-pdb-marker-regexp-start gud-marker-acc)
1570 ;; Everything before the potential marker start can be output.
1571 (setq output (concat output (substring gud-marker-acc
1572 0 (match-beginning 0))))
1574 ;; Everything after, we save, to combine with later input.
1575 (setq gud-marker-acc
1576 (substring gud-marker-acc (match-beginning 0))))
1578 (setq output (concat output gud-marker-acc)
1583 (defcustom gud-pdb-command-name "pdb"
1584 "File name for executing the Python debugger.
1585 This should be an executable on your path, or an absolute file name."
1590 (defun pdb (command-line)
1591 "Run pdb on program FILE in buffer `*gud-FILE*'.
1592 The directory containing FILE becomes the initial working directory
1593 and source-file directory for your debugger."
1595 (list (gud-query-cmdline 'pdb)))
1597 (gud-common-init command-line nil 'gud-pdb-marker-filter)
1598 (set (make-local-variable 'gud-minor-mode) 'pdb)
1600 (gud-def gud-break "break %l" "\C-b" "Set breakpoint at current line.")
1601 (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line")
1602 (gud-def gud-step "step" "\C-s" "Step one source line with display.")
1603 (gud-def gud-next "next" "\C-n" "Step one line (skip functions).")
1604 (gud-def gud-cont "continue" "\C-r" "Continue with display.")
1605 (gud-def gud-finish "return" "\C-f" "Finish executing current function.")
1606 (gud-def gud-up "up" "<" "Up one stack frame.")
1607 (gud-def gud-down "down" ">" "Down one stack frame.")
1608 (gud-def gud-print "p %e" "\C-p" "Evaluate Python expression at point.")
1610 (gud-def gud-statement "! %e" "\C-e" "Execute Python statement at point.")
1612 ;; (setq comint-prompt-regexp "^(.*pdb[+]?) *")
1613 (setq comint-prompt-regexp "^(Pdb) *")
1614 (setq paragraph-start comint-prompt-regexp)
1615 (run-hooks 'pdb-mode-hook))
1617 ;; ======================================================================
1621 ;; AUTHOR: Derek Davies <ddavies@world.std.com>
1622 ;; Zoltan Kemenczy <zoltan@ieee.org;zkemenczy@rim.net>
1624 ;; CREATED: Sun Feb 22 10:46:38 1998 Derek Davies.
1625 ;; UPDATED: Nov 11, 2001 Zoltan Kemenczy
1626 ;; Dec 10, 2002 Zoltan Kemenczy - added nested class support
1628 ;; INVOCATION NOTES:
1630 ;; You invoke jdb-mode with:
1634 ;; It responds with:
1636 ;; Run jdb (like this): jdb
1638 ;; type any jdb switches followed by the name of the class you'd like to debug.
1639 ;; Supply a fully qualfied classname (these do not have the ".class" extension)
1640 ;; for the name of the class to debug (e.g. "COM.the-kind.ddavies.CoolClass").
1641 ;; See the known problems section below for restrictions when specifying jdb
1642 ;; command line switches (search forward for '-classpath').
1644 ;; You should see something like the following:
1646 ;; Current directory is ~/src/java/hello/
1647 ;; Initializing jdb...
1648 ;; 0xed2f6628:class(hello)
1651 ;; To set an initial breakpoint try:
1653 ;; > stop in hello.main
1654 ;; Breakpoint set in hello.main
1657 ;; To execute the program type:
1662 ;; Breakpoint hit: running ...
1663 ;; hello.main (hello:12)
1665 ;; Type M-n to step over the current line and M-s to step into it. That,
1666 ;; along with the JDB 'help' command should get you started. The 'quit'
1667 ;; JDB command will get out out of the debugger. There is some truly
1668 ;; pathetic JDB documentation available at:
1670 ;; http://java.sun.com/products/jdk/1.1/debugging/
1672 ;; KNOWN PROBLEMS AND FIXME's:
1674 ;; Not sure what happens with inner classes ... haven't tried them.
1676 ;; Does not grok UNICODE id's. Only ASCII id's are supported.
1678 ;; You must not put whitespace between "-classpath" and the path to
1679 ;; search for java classes even though it is required when invoking jdb
1680 ;; from the command line. See gud-jdb-massage-args for details.
1681 ;; The same applies for "-sourcepath".
1683 ;; Note: The following applies only if `gud-jdb-use-classpath' is nil;
1684 ;; refer to the documentation of `gud-jdb-use-classpath' and
1685 ;; `gud-jdb-classpath',`gud-jdb-sourcepath' variables for information
1686 ;; on using the classpath for locating java source files.
1688 ;; If any of the source files in the directories listed in
1689 ;; gud-jdb-directories won't parse you'll have problems. Make sure
1690 ;; every file ending in ".java" in these directories parses without error.
1692 ;; All the .java files in the directories in gud-jdb-directories are
1693 ;; syntactically analyzed each time gud jdb is invoked. It would be
1694 ;; nice to keep as much information as possible between runs. It would
1695 ;; be really nice to analyze the files only as neccessary (when the
1696 ;; source needs to be displayed.) I'm not sure to what extent the former
1697 ;; can be accomplished and I'm not sure the latter can be done at all
1698 ;; since I don't know of any general way to tell which .class files are
1699 ;; defined by which .java file without analyzing all the .java files.
1700 ;; If anyone knows why JavaSoft didn't put the source file names in
1701 ;; debuggable .class files please clue me in so I find something else
1702 ;; to be spiteful and bitter about.
1704 ;; ======================================================================
1705 ;; gud jdb variables and functions
1707 (defcustom gud-jdb-command-name "jdb"
1708 "Command that executes the Java debugger."
1712 (defcustom gud-jdb-use-classpath t
1713 "If non-nil, search for Java source files in classpath directories.
1714 The list of directories to search is the value of `gud-jdb-classpath'.
1715 The file pathname is obtained by converting the fully qualified
1716 class information output by jdb to a relative pathname and appending
1717 it to `gud-jdb-classpath' element by element until a match is found.
1719 This method has a significant jdb startup time reduction advantage
1720 since it does not require the scanning of all `gud-jdb-directories'
1721 and parsing all Java files for class information.
1723 Set to nil to use `gud-jdb-directories' to scan java sources for
1724 class information on jdb startup (original method)."
1728 (defvar gud-jdb-classpath nil
1729 "Java/jdb classpath directories list.
1730 If `gud-jdb-use-classpath' is non-nil, gud-jdb derives the `gud-jdb-classpath'
1731 list automatically using the following methods in sequence
1732 \(with subsequent successful steps overriding the results of previous
1735 1) Read the CLASSPATH environment variable,
1736 2) Read any \"-classpath\" argument used to run jdb,
1737 or detected in jdb output (e.g. if jdb is run by a script
1738 that echoes the actual jdb command before starting jdb)
1739 3) Send a \"classpath\" command to jdb and scan jdb output for
1740 classpath information if jdb is invoked with an \"-attach\" (to
1741 an already running VM) argument (This case typically does not
1742 have a \"-classpath\" command line argument - that is provided
1743 to the VM when it is started).
1745 Note that method 3 cannot be used with oldjdb (or Java 1 jdb) since
1746 those debuggers do not support the classpath command. Use 1) or 2).")
1748 (defvar gud-jdb-sourcepath nil
1749 "Directory list provided by an (optional) \"-sourcepath\" option to jdb.
1750 This list is prepended to `gud-jdb-classpath' to form the complete
1751 list of directories searched for source files.")
1753 (defvar gud-marker-acc-max-length 4000
1754 "Maximum number of debugger output characters to keep.
1755 This variable limits the size of `gud-marker-acc' which holds
1756 the most recent debugger output history while searching for
1757 source file information.")
1759 (defvar gud-jdb-history nil
1760 "History of argument lists passed to jdb.")
1763 ;; List of Java source file directories.
1764 (defvar gud-jdb-directories (list ".")
1765 "*A list of directories that gud jdb should search for source code.
1766 The file names should be absolute, or relative to the current
1769 The set of .java files residing in the directories listed are
1770 syntactically analyzed to determine the classes they define and the
1771 packages in which these classes belong. In this way gud jdb maps the
1772 package-qualified class names output by the jdb debugger to the source
1773 file from which the class originated. This allows gud mode to keep
1774 the source code display in sync with the debugging session.")
1776 (defvar gud-jdb-source-files nil
1777 "List of the java source files for this debugging session.")
1779 ;; Association list of fully qualified class names (package + class name)
1780 ;; and their source files.
1781 (defvar gud-jdb-class-source-alist nil
1782 "Association list of fully qualified class names and source files.")
1784 ;; This is used to hold a source file during analysis.
1785 (defvar gud-jdb-analysis-buffer nil)
1787 (defvar gud-jdb-classpath-string nil
1788 "Holds temporary classpath values.")
1790 (defun gud-jdb-build-source-files-list (path extn)
1791 "Return a list of java source files (absolute paths).
1792 PATH gives the directories in which to search for files with
1793 extension EXTN. Normally EXTN is given as the regular expression
1795 (apply 'nconc (mapcar (lambda (d)
1796 (when (file-directory-p d)
1797 (directory-files d t extn nil)))
1800 ;; Move point past whitespace.
1801 (defun gud-jdb-skip-whitespace ()
1802 (skip-chars-forward " \n\r\t\014"))
1804 ;; Move point past a "// <eol>" type of comment.
1805 (defun gud-jdb-skip-single-line-comment ()
1808 ;; Move point past a "/* */" or "/** */" type of comment.
1809 (defun gud-jdb-skip-traditional-or-documentation-comment ()
1813 (if (eq (following-char) ?*)
1817 (if (eq (following-char) ?/)
1820 (throw 'break nil)))))
1823 ;; Move point past any number of consecutive whitespace chars and/or comments.
1824 (defun gud-jdb-skip-whitespace-and-comments ()
1825 (gud-jdb-skip-whitespace)
1830 (gud-jdb-skip-single-line-comment)
1831 (gud-jdb-skip-whitespace))
1832 ((looking-at "/\\*")
1833 (gud-jdb-skip-traditional-or-documentation-comment)
1834 (gud-jdb-skip-whitespace))
1835 (t (throw 'done nil))))))
1837 ;; Move point past things that are id-like. The intent is to skip regular
1838 ;; id's, such as class or interface names as well as package and interface
1840 (defun gud-jdb-skip-id-ish-thing ()
1841 (skip-chars-forward "^ /\n\r\t\014,;{"))
1843 ;; Move point past a string literal.
1844 (defun gud-jdb-skip-string-literal ()
1847 ((eq (following-char) ?\\)
1849 ((eq (following-char) ?\042))))
1853 ;; Move point past a character literal.
1854 (defun gud-jdb-skip-character-literal ()
1858 (if (eq (following-char) ?\\)
1860 (not (eq (following-char) ?\')))
1864 ;; Move point past the following block. There may be (legal) cruft before
1865 ;; the block's opening brace. There must be a block or it's the end of life
1866 ;; in petticoat junction.
1867 (defun gud-jdb-skip-block ()
1869 ;; Find the begining of the block.
1871 (not (eq (following-char) ?{))
1873 ;; Skip any constructs that can harbor literal block delimiter
1874 ;; characters and/or the delimiters for the constructs themselves.
1877 (gud-jdb-skip-single-line-comment))
1878 ((looking-at "/\\*")
1879 (gud-jdb-skip-traditional-or-documentation-comment))
1880 ((eq (following-char) ?\042)
1881 (gud-jdb-skip-string-literal))
1882 ((eq (following-char) ?\')
1883 (gud-jdb-skip-character-literal))
1884 (t (forward-char))))
1886 ;; Now at the begining of the block.
1889 ;; Skip over the body of the block as well as the final brace.
1890 (let ((open-level 1))
1891 (while (not (eq open-level 0))
1894 (gud-jdb-skip-single-line-comment))
1895 ((looking-at "/\\*")
1896 (gud-jdb-skip-traditional-or-documentation-comment))
1897 ((eq (following-char) ?\042)
1898 (gud-jdb-skip-string-literal))
1899 ((eq (following-char) ?\')
1900 (gud-jdb-skip-character-literal))
1901 ((eq (following-char) ?{)
1902 (setq open-level (+ open-level 1))
1904 ((eq (following-char) ?})
1905 (setq open-level (- open-level 1))
1907 (t (forward-char))))))
1909 ;; Find the package and class definitions in Java source file FILE. Assumes
1910 ;; that FILE contains a legal Java program. BUF is a scratch buffer used
1911 ;; to hold the source during analysis.
1912 (defun gud-jdb-analyze-source (buf file)
1915 (insert-file-contents file nil nil nil t)
1920 (gud-jdb-skip-whitespace)
1924 ;; Any number of semi's following a block is legal. Move point
1925 ;; past them. Note that comments and whitespace may be
1926 ;; interspersed as well.
1927 ((eq (following-char) ?\073)
1930 ;; Move point past a single line comment.
1932 (gud-jdb-skip-single-line-comment))
1934 ;; Move point past a traditional or documentation comment.
1935 ((looking-at "/\\*")
1936 (gud-jdb-skip-traditional-or-documentation-comment))
1938 ;; Move point past a package statement, but save the PackageName.
1939 ((looking-at "package")
1941 (gud-jdb-skip-whitespace-and-comments)
1943 (gud-jdb-skip-id-ish-thing)
1944 (setq p (concat (buffer-substring s (point)) "."))
1945 (gud-jdb-skip-whitespace-and-comments)
1946 (if (eq (following-char) ?\073)
1949 ;; Move point past an import statement.
1950 ((looking-at "import")
1952 (gud-jdb-skip-whitespace-and-comments)
1953 (gud-jdb-skip-id-ish-thing)
1954 (gud-jdb-skip-whitespace-and-comments)
1955 (if (eq (following-char) ?\073)
1958 ;; Move point past the various kinds of ClassModifiers.
1959 ((looking-at "public")
1961 ((looking-at "abstract")
1963 ((looking-at "final")
1966 ;; Move point past a ClassDeclaraction, but save the class
1968 ((looking-at "class")
1970 (gud-jdb-skip-whitespace-and-comments)
1972 (gud-jdb-skip-id-ish-thing)
1974 l (nconc l (list (concat p (buffer-substring s (point)))))))
1975 (gud-jdb-skip-block))
1977 ;; Move point past an interface statement.
1978 ((looking-at "interface")
1980 (gud-jdb-skip-block))
1982 ;; Anything else means the input is invalid.
1984 (message "Error parsing file %s." file)
1985 (throw 'abort nil))))))
1988 (defun gud-jdb-build-class-source-alist-for-file (file)
1992 (gud-jdb-analyze-source gud-jdb-analysis-buffer file)))
1994 ;; Return an alist of fully qualified classes and the source files
1995 ;; holding their definitions. SOURCES holds a list of all the source
1996 ;; files to examine.
1997 (defun gud-jdb-build-class-source-alist (sources)
1998 (setq gud-jdb-analysis-buffer (get-buffer-create " *gud-jdb-scratch*"))
2003 'gud-jdb-build-class-source-alist-for-file
2005 (kill-buffer gud-jdb-analysis-buffer)
2006 (setq gud-jdb-analysis-buffer nil)))
2008 ;; Change what was given in the minibuffer to something that can be used to
2009 ;; invoke the debugger.
2010 (defun gud-jdb-massage-args (file args)
2011 ;; The jdb executable must have whitespace between "-classpath" and
2012 ;; its value while gud-common-init expects all switch values to
2013 ;; follow the switch keyword without intervening whitespace. We
2014 ;; require that when the user enters the "-classpath" switch in the
2015 ;; EMACS minibuffer that they do so without the intervening
2016 ;; whitespace. This function adds it back (it's called after
2017 ;; gud-common-init). There are more switches like this (for
2018 ;; instance "-host" and "-password") but I don't care about them
2021 (let (massaged-args user-error)
2023 (while (and args (not user-error))
2025 ((setq user-error (string-match "-classpath$" (car args))))
2026 ((setq user-error (string-match "-sourcepath$" (car args))))
2027 ((string-match "-classpath\\(.+\\)" (car args))
2029 (append massaged-args
2031 (setq gud-jdb-classpath-string
2032 (match-string 1 (car args)))))))
2033 ((string-match "-sourcepath\\(.+\\)" (car args))
2035 (append massaged-args
2037 (setq gud-jdb-sourcepath
2038 (match-string 1 (car args)))))))
2039 (t (setq massaged-args (append massaged-args (list (car args))))))
2040 (setq args (cdr args)))
2042 ;; By this point the current directory is all screwed up. Maybe we
2043 ;; could fix things and re-invoke gud-common-init, but for now I think
2044 ;; issueing the error is good enough.
2047 (kill-buffer (current-buffer))
2048 (error "Error: Omit whitespace between '-classpath or -sourcepath' and its value")))
2051 ;; Search for an association with P, a fully qualified class name, in
2052 ;; gud-jdb-class-source-alist. The asssociation gives the fully
2053 ;; qualified file name of the source file which produced the class.
2054 (defun gud-jdb-find-source-file (p)
2055 (cdr (assoc p gud-jdb-class-source-alist)))
2057 ;; Note: Reset to this value every time a prompt is seen
2058 (defvar gud-jdb-lowest-stack-level 999)
2060 (defun gud-jdb-find-source-using-classpath (p)
2061 "Find source file corresponding to fully qualified class p.
2062 Convert p from jdb's output, converted to a pathname
2063 relative to a classpath directory."
2066 (;; Replace dots with slashes and append ".java" to generate file
2067 ;; name relative to classpath
2070 (mapconcat 'identity
2072 ;; Eliminate any subclass references in the class
2073 ;; name string. These start with a "$"
2075 (if (string-match "$.*" x)
2076 (replace-match "" t t x) p))
2080 (cplist (append gud-jdb-sourcepath gud-jdb-classpath))
2083 (not (setq found-file
2085 (concat (car cplist) "/" filename)))))
2086 (setq cplist (cdr cplist)))
2087 (if found-file (concat (car cplist) "/" filename)))))
2089 (defun gud-jdb-find-source (string)
2090 "Alias for function used to locate source files.
2091 Set to `gud-jdb-find-source-using-classpath' or `gud-jdb-find-source-file'
2092 during jdb initialization depending on the value of
2093 `gud-jdb-use-classpath'."
2096 (defun gud-jdb-parse-classpath-string (string)
2097 "Parse the classpath list and convert each item to an absolute pathname."
2098 (mapcar (lambda (s) (if (string-match "[/\\]$" s)
2099 (replace-match "" nil nil s) s))
2100 (mapcar 'file-truename
2103 (concat "[ \t\n\r,\"" path-separator "]+")))))
2105 ;; See comentary for other debugger's marker filters - there you will find
2106 ;; important notes about STRING.
2107 (defun gud-jdb-marker-filter (string)
2109 ;; Build up the accumulator.
2110 (setq gud-marker-acc
2112 (concat gud-marker-acc string)
2115 ;; Look for classpath information until gud-jdb-classpath-string is found
2116 ;; (interactive, multiple settings of classpath from jdb
2117 ;; not supported/followed)
2118 (if (and gud-jdb-use-classpath
2119 (not gud-jdb-classpath-string)
2120 (or (string-match "classpath:[ \t[]+\\([^]]+\\)" gud-marker-acc)
2121 (string-match "-classpath[ \t\"]+\\([^ \"]+\\)" gud-marker-acc)))
2122 (setq gud-jdb-classpath
2123 (gud-jdb-parse-classpath-string
2124 (setq gud-jdb-classpath-string
2125 (match-string 1 gud-marker-acc)))))
2127 ;; We process STRING from left to right. Each time through the
2128 ;; following loop we process at most one marker. After we've found a
2129 ;; marker, delete gud-marker-acc up to and including the match
2131 ;; Process each complete marker in the input.
2134 ;; Do we see a marker?
2136 ;; jdb puts out a string of the following form when it
2137 ;; hits a breakpoint:
2139 ;; <fully-qualified-class><method> (<class>:<line-number>)
2141 ;; <fully-qualified-class>'s are composed of Java ID's
2142 ;; separated by periods. <method> and <class> are
2143 ;; also Java ID's. <method> begins with a period and
2144 ;; may contain less-than and greater-than (constructors,
2145 ;; for instance, are called <init> in the symbol table.)
2146 ;; Java ID's begin with a letter followed by letters
2147 ;; and/or digits. The set of letters includes underscore
2150 ;; The first group matches <fully-qualified-class>,
2151 ;; the second group matches <class> and the third group
2152 ;; matches <line-number>. We don't care about using
2153 ;; <method> so we don't "group" it.
2155 ;; FIXME: Java ID's are UNICODE strings, this matches ASCII
2158 ;; The ".," in the last square-bracket are necessary because
2159 ;; of Sun's total disrespect for backwards compatibility in
2160 ;; reported line numbers from jdb - starting in 1.4.0 they
2161 ;; print line numbers using LOCALE, inserting a comma or a
2162 ;; period at the thousands positions (how ingenious!).
2164 "\\(\\[[0-9]+] \\)*\\([a-zA-Z0-9.$_]+\\)\\.[a-zA-Z0-9$_<>(),]+ \
2165 \\(([a-zA-Z0-9.$_]+:\\|line=\\)\\([0-9.,]+\\)"
2168 ;; A good marker is one that:
2169 ;; 1) does not have a "[n] " prefix (not part of a stack backtrace)
2170 ;; 2) does have an "[n] " prefix and n is the lowest prefix seen
2171 ;; since the last prompt
2172 ;; Figure out the line on which to position the debugging arrow.
2173 ;; Return the info as a cons of the form:
2175 ;; (<file-name> . <line-number>) .
2176 (if (if (match-beginning 1)
2178 (setq n (string-to-number (substring
2180 (1+ (match-beginning 1))
2181 (- (match-end 1) 2))))
2182 (if (< n gud-jdb-lowest-stack-level)
2183 (progn (setq gud-jdb-lowest-stack-level n) t)))
2185 (if (setq file-found
2186 (gud-jdb-find-source (match-string 2 gud-marker-acc)))
2187 (setq gud-last-frame
2191 ((numstr (match-string 4 gud-marker-acc)))
2192 (if (string-match "[.,]" numstr)
2193 (replace-match "" nil nil numstr)
2195 (message "Could not find source file.")))
2197 ;; Set the accumulator to the remaining text.
2198 (setq gud-marker-acc (substring gud-marker-acc (match-end 0))))
2200 (if (string-match comint-prompt-regexp gud-marker-acc)
2201 (setq gud-jdb-lowest-stack-level 999)))
2203 ;; Do not allow gud-marker-acc to grow without bound. If the source
2204 ;; file information is not within the last 3/4
2205 ;; gud-marker-acc-max-length characters, well,...
2206 (if (> (length gud-marker-acc) gud-marker-acc-max-length)
2207 (setq gud-marker-acc
2208 (substring gud-marker-acc
2209 (- (/ (* gud-marker-acc-max-length 3) 4)))))
2211 ;; We don't filter any debugger output so just return what we were given.
2214 (defvar gud-jdb-command-name "jdb" "Command that executes the Java debugger.")
2217 (defun jdb (command-line)
2218 "Run jdb with command line COMMAND-LINE in a buffer.
2219 The buffer is named \"*gud*\" if no initial class is given or
2220 \"*gud-<initial-class-basename>*\" if there is. If the \"-classpath\"
2221 switch is given, omit all whitespace between it and its value.
2223 See `gud-jdb-use-classpath' and `gud-jdb-classpath' documentation for
2224 information on how jdb accesses source files. Alternatively (if
2225 `gud-jdb-use-classpath' is nil), see `gud-jdb-directories' for the
2226 original source file access method.
2228 For general information about commands available to control jdb from
2229 gud, see `gud-mode'."
2231 (list (gud-query-cmdline 'jdb)))
2232 (setq gud-jdb-classpath nil)
2233 (setq gud-jdb-sourcepath nil)
2235 ;; Set gud-jdb-classpath from the CLASSPATH environment variable,
2236 ;; if CLASSPATH is set.
2237 (setq gud-jdb-classpath-string (getenv "CLASSPATH"))
2238 (if gud-jdb-classpath-string
2239 (setq gud-jdb-classpath
2240 (gud-jdb-parse-classpath-string gud-jdb-classpath-string)))
2241 (setq gud-jdb-classpath-string nil) ; prepare for next
2243 (gud-common-init command-line 'gud-jdb-massage-args
2244 'gud-jdb-marker-filter)
2245 (set (make-local-variable 'gud-minor-mode) 'jdb)
2247 ;; If a -classpath option was provided, set gud-jdb-classpath
2248 (if gud-jdb-classpath-string
2249 (setq gud-jdb-classpath
2250 (gud-jdb-parse-classpath-string gud-jdb-classpath-string)))
2251 (setq gud-jdb-classpath-string nil) ; prepare for next
2252 ;; If a -sourcepath option was provided, parse it
2253 (if gud-jdb-sourcepath
2254 (setq gud-jdb-sourcepath
2255 (gud-jdb-parse-classpath-string gud-jdb-sourcepath)))
2257 (gud-def gud-break "stop at %c:%l" "\C-b" "Set breakpoint at current line.")
2258 (gud-def gud-remove "clear %c:%l" "\C-d" "Remove breakpoint at current line")
2259 (gud-def gud-step "step" "\C-s" "Step one source line with display.")
2260 (gud-def gud-next "next" "\C-n" "Step one line (skip functions).")
2261 (gud-def gud-cont "cont" "\C-r" "Continue with display.")
2262 (gud-def gud-finish "step up" "\C-f" "Continue until current method returns.")
2263 (gud-def gud-up "up\C-Mwhere" "<" "Up one stack frame.")
2264 (gud-def gud-down "down\C-Mwhere" ">" "Up one stack frame.")
2265 (gud-def gud-run "run" nil "Run the program.") ;if VM start using jdb
2267 (setq comint-prompt-regexp "^> \\|^[^ ]+\\[[0-9]+\\] ")
2268 (setq paragraph-start comint-prompt-regexp)
2269 (run-hooks 'jdb-mode-hook)
2271 (if gud-jdb-use-classpath
2272 ;; Get the classpath information from the debugger
2274 (if (string-match "-attach" command-line)
2275 (gud-call "classpath"))
2276 (fset 'gud-jdb-find-source
2277 'gud-jdb-find-source-using-classpath))
2279 ;; Else create and bind the class/source association list as well
2280 ;; as the source file list.
2281 (setq gud-jdb-class-source-alist
2282 (gud-jdb-build-class-source-alist
2283 (setq gud-jdb-source-files
2284 (gud-jdb-build-source-files-list gud-jdb-directories
2286 (fset 'gud-jdb-find-source 'gud-jdb-find-source-file)))
2289 ;; ======================================================================
2291 ;; BASHDB support. See http://bashdb.sourceforge.net
2293 ;; AUTHOR: Rocky Bernstein <rocky@panix.com>
2295 ;; CREATED: Sun Nov 10 10:46:38 2002 Rocky Bernstein.
2297 ;; INVOCATION NOTES:
2299 ;; You invoke bashdb-mode with:
2301 ;; M-x bashdb <enter>
2303 ;; It responds with:
2305 ;; Run bashdb (like this): bash
2308 ;; History of argument lists passed to bashdb.
2309 (defvar gud-bashdb-history nil)
2311 ;; Convert a command line as would be typed normally to run a script
2312 ;; into one that invokes an Emacs-enabled debugging session.
2313 ;; "--debugger" in inserted as the first switch.
2315 ;; There's no guarantee that Emacs will hand the filter the entire
2316 ;; marker at once; it could be broken up across several strings. We
2317 ;; might even receive a big chunk with several markers in it. If we
2318 ;; receive a chunk of text which looks like it might contain the
2319 ;; beginning of a marker, we save it here between calls to the
2321 (defun gud-bashdb-marker-filter (string)
2322 (setq gud-marker-acc (concat gud-marker-acc string))
2325 ;; Process all the complete markers in this chunk.
2326 ;; Format of line looks like this:
2327 ;; (/etc/init.d/ntp.init:16):
2328 ;; but we also allow DOS drive letters
2329 ;; (d:/etc/init.d/ntp.init:16):
2330 (while (string-match "\\(^\\|\n\\)(\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\)):.*\n"
2334 ;; Extract the frame position from the marker.
2336 (cons (match-string 2 gud-marker-acc)
2337 (string-to-number (match-string 4 gud-marker-acc)))
2339 ;; Append any text before the marker to the output we're going
2340 ;; to return - we don't include the marker in this text.
2341 output (concat output
2342 (substring gud-marker-acc 0 (match-beginning 0)))
2344 ;; Set the accumulator to the remaining text.
2345 gud-marker-acc (substring gud-marker-acc (match-end 0))))
2347 ;; Does the remaining text look like it might end with the
2348 ;; beginning of another marker? If it does, then keep it in
2349 ;; gud-marker-acc until we receive the rest of it. Since we
2350 ;; know the full marker regexp above failed, it's pretty simple to
2351 ;; test for marker starts.
2352 (if (string-match "\032.*\\'" gud-marker-acc)
2354 ;; Everything before the potential marker start can be output.
2355 (setq output (concat output (substring gud-marker-acc
2356 0 (match-beginning 0))))
2358 ;; Everything after, we save, to combine with later input.
2359 (setq gud-marker-acc
2360 (substring gud-marker-acc (match-beginning 0))))
2362 (setq output (concat output gud-marker-acc)
2367 (defcustom gud-bashdb-command-name "bash --debugger"
2368 "File name for executing bash debugger."
2373 (defun bashdb (command-line)
2374 "Run bashdb on program FILE in buffer *gud-FILE*.
2375 The directory containing FILE becomes the initial working directory
2376 and source-file directory for your debugger."
2378 (list (read-from-minibuffer "Run bashdb (like this): "
2379 (if (consp gud-bashdb-history)
2380 (car gud-bashdb-history)
2381 (concat gud-bashdb-command-name
2383 gud-minibuffer-local-map nil
2384 '(gud-bashdb-history . 1))))
2386 (gud-common-init command-line nil 'gud-bashdb-marker-filter)
2388 (set (make-local-variable 'gud-minor-mode) 'bashdb)
2390 (gud-def gud-break "break %l" "\C-b" "Set breakpoint at current line.")
2391 (gud-def gud-tbreak "tbreak %l" "\C-t" "Set temporary breakpoint at current line.")
2392 (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line")
2393 (gud-def gud-step "step" "\C-s" "Step one source line with display.")
2394 (gud-def gud-next "next" "\C-n" "Step one line (skip functions).")
2395 (gud-def gud-cont "continue" "\C-r" "Continue with display.")
2396 (gud-def gud-finish "finish" "\C-f" "Finish executing current function.")
2397 (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).")
2398 (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).")
2399 (gud-def gud-print "x %e" "\C-p" "Evaluate BASH expression at point.")
2402 (gud-def gud-statement "eval %e" "\C-e" "Execute BASH statement at point.")
2404 (setq comint-prompt-regexp "^bashdb<+(*[0-9]+)*>+ ")
2405 (setq paragraph-start comint-prompt-regexp)
2406 (run-hooks 'bashdb-mode-hook)
2410 ;; End of debugger-specific information
2414 ;; When we send a command to the debugger via gud-call, it's annoying
2415 ;; to see the command and the new prompt inserted into the debugger's
2416 ;; buffer; we have other ways of knowing the command has completed.
2418 ;; If the buffer looks like this:
2419 ;; --------------------
2420 ;; (gdb) set args foo bar
2422 ;; --------------------
2423 ;; (the -!- marks the location of point), and we type `C-x SPC' in a
2424 ;; source file to set a breakpoint, we want the buffer to end up like
2426 ;; --------------------
2427 ;; (gdb) set args foo bar
2428 ;; Breakpoint 1 at 0x92: file make-docfile.c, line 49.
2430 ;; --------------------
2431 ;; Essentially, the old prompt is deleted, and the command's output
2432 ;; and the new prompt take its place.
2434 ;; Not echoing the command is easy enough; you send it directly using
2435 ;; process-send-string, and it never enters the buffer. However,
2436 ;; getting rid of the old prompt is trickier; you don't want to do it
2437 ;; when you send the command, since that will result in an annoying
2438 ;; flicker as the prompt is deleted, redisplay occurs while Emacs
2439 ;; waits for a response from the debugger, and the new prompt is
2440 ;; inserted. Instead, we'll wait until we actually get some output
2441 ;; from the subprocess before we delete the prompt. If the command
2442 ;; produced no output other than a new prompt, that prompt will most
2443 ;; likely be in the first chunk of output received, so we will delete
2444 ;; the prompt and then replace it with an identical one. If the
2445 ;; command produces output, the prompt is moving anyway, so the
2446 ;; flicker won't be annoying.
2448 ;; So - when we want to delete the prompt upon receipt of the next
2449 ;; chunk of debugger output, we position gud-delete-prompt-marker at
2450 ;; the start of the prompt; the process filter will notice this, and
2451 ;; delete all text between it and the process output marker. If
2452 ;; gud-delete-prompt-marker points nowhere, we leave the current
2454 (defvar gud-delete-prompt-marker nil)
2457 (put 'gud-mode 'mode-class 'special)
2459 (define-derived-mode gud-mode comint-mode "Debugger"
2460 "Major mode for interacting with an inferior debugger process.
2462 You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx,
2463 M-x perldb, M-x xdb, or M-x jdb. Each entry point finishes by executing a
2464 hook; `gdb-mode-hook', `sdb-mode-hook', `dbx-mode-hook',
2465 `perldb-mode-hook', `xdb-mode-hook', or `jdb-mode-hook' respectively.
2467 After startup, the following commands are available in both the GUD
2468 interaction buffer and any source buffer GUD visits due to a breakpoint stop
2471 \\[gud-break] sets a breakpoint at the current file and line. In the
2472 GUD buffer, the current file and line are those of the last breakpoint or
2473 step. In a source buffer, they are the buffer's file and current line.
2475 \\[gud-remove] removes breakpoints on the current file and line.
2477 \\[gud-refresh] displays in the source window the last line referred to
2480 \\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line,
2481 step-one-line (not entering function calls), and step-one-instruction
2482 and then update the source window with the current file and position.
2483 \\[gud-cont] continues execution.
2485 \\[gud-print] tries to find the largest C lvalue or function-call expression
2486 around point, and sends it to the debugger for value display.
2488 The above commands are common to all supported debuggers except xdb which
2489 does not support stepping instructions.
2491 Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break],
2492 except that the breakpoint is temporary; that is, it is removed when
2493 execution stops on it.
2495 Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack
2496 frame. \\[gud-down] drops back down through one.
2498 If you are using gdb or xdb, \\[gud-finish] runs execution to the return from
2499 the current function and stops.
2501 All the keystrokes above are accessible in the GUD buffer
2502 with the prefix C-c, and in all buffers through the prefix C-x C-a.
2504 All pre-defined functions for which the concept make sense repeat
2505 themselves the appropriate number of times if you give a prefix
2508 You may use the `gud-def' macro in the initialization hook to define other
2511 Other commands for interacting with the debugger process are inherited from
2512 comint mode, which see."
2513 (setq mode-line-process '(":%s"))
2514 (define-key (current-local-map) "\C-c\C-l" 'gud-refresh)
2515 (set (make-local-variable 'gud-last-frame) nil)
2516 (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
2517 (make-local-variable 'comint-prompt-regexp)
2518 ;; Don't put repeated commands in command history many times.
2519 (set (make-local-variable 'comint-input-ignoredups) t)
2520 (make-local-variable 'paragraph-start)
2521 (set (make-local-variable 'gud-delete-prompt-marker) (make-marker))
2522 (add-hook 'kill-buffer-hook 'gud-kill-buffer-hook nil t))
2524 ;; Cause our buffers to be displayed, by default,
2525 ;; in the selected window.
2526 ;;;###autoload (add-hook 'same-window-regexps "\\*gud-.*\\*\\(\\|<[0-9]+>\\)")
2528 (defcustom gud-chdir-before-run t
2529 "Non-nil if GUD should `cd' to the debugged executable."
2533 (defvar gud-target-name "--unknown--"
2534 "The apparent name of the program being debugged in a gud buffer.")
2536 ;; Perform initializations common to all debuggers.
2537 ;; The first arg is the specified command line,
2538 ;; which starts with the program to debug.
2539 ;; The other three args specify the values to use
2540 ;; for local variables in the debugger buffer.
2541 (defun gud-common-init (command-line massage-args marker-filter
2542 &optional find-file)
2543 (let* ((words (split-string command-line))
2544 (program (car words))
2545 (dir default-directory)
2546 ;; Extract the file name from WORDS
2547 ;; and put t in its place.
2548 ;; Later on we will put the modified file name arg back there.
2549 (file-word (let ((w (cdr words)))
2550 (while (and w (= ?- (aref (car w) 0)))
2556 (and file-word (substitute-in-file-name file-word)))
2558 ;; If a directory was specified, expand the file name.
2559 ;; Otherwise, don't expand it, so GDB can use the PATH.
2560 ;; A file name without directory is literally valid
2561 ;; only if the file exists in ., and in that case,
2562 ;; omitting the expansion here has no visible effect.
2563 (file (and file-word
2564 (if (file-name-directory file-subst)
2565 (expand-file-name file-subst)
2567 (filepart (and file-word (concat "-" (file-name-nondirectory file))))
2568 (existing-buffer (get-buffer (concat "*gud" filepart "*"))))
2569 (pop-to-buffer (concat "*gud" filepart "*"))
2570 (when (and existing-buffer (get-buffer-process existing-buffer))
2571 (error "This program is already being debugged"))
2572 ;; Set the dir, in case the buffer already existed with a different dir.
2573 (setq default-directory dir)
2574 ;; Set default-directory to the file's directory.
2576 gud-chdir-before-run
2577 ;; Don't set default-directory if no directory was specified.
2578 ;; In that case, either the file is found in the current directory,
2579 ;; in which case this setq is a no-op,
2580 ;; or it is found by searching PATH,
2581 ;; in which case we don't know what directory it was found in.
2582 (file-name-directory file)
2583 (setq default-directory (file-name-directory file)))
2584 (or (bolp) (newline))
2585 (insert "Current directory is " default-directory "\n")
2586 ;; Put the substituted and expanded file name back in its place.
2588 (while (and w (not (eq (car w) t)))
2592 (apply 'make-comint (concat "gud" filepart) program nil
2593 (if massage-args (funcall massage-args file args) args))
2594 ;; Since comint clobbered the mode, we don't set it until now.
2596 (set (make-local-variable 'gud-target-name)
2597 (and file-word (file-name-nondirectory file))))
2598 (set (make-local-variable 'gud-marker-filter) marker-filter)
2599 (if find-file (set (make-local-variable 'gud-find-file) find-file))
2600 (setq gud-running nil)
2601 (setq gud-last-last-frame nil)
2603 (set-process-filter (get-buffer-process (current-buffer)) 'gud-filter)
2604 (set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel)
2607 (defun gud-set-buffer ()
2608 (when (eq major-mode 'gud-mode)
2609 (setq gud-comint-buffer (current-buffer))))
2611 (defvar gud-filter-defer-flag nil
2612 "Non-nil means don't process anything from the debugger right now.
2613 It is saved for when this flag is not set.")
2615 ;; These functions are responsible for inserting output from your debugger
2616 ;; into the buffer. The hard work is done by the method that is
2617 ;; the value of gud-marker-filter.
2619 (defun gud-filter (proc string)
2620 ;; Here's where the actual buffer insertion is done
2621 (let (output process-window)
2622 (if (buffer-name (process-buffer proc))
2623 (if gud-filter-defer-flag
2624 ;; If we can't process any text now,
2625 ;; save it for later.
2626 (setq gud-filter-pending-text
2627 (concat (or gud-filter-pending-text "") string))
2629 ;; If we have to ask a question during the processing,
2630 ;; defer any additional text that comes from the debugger
2631 ;; during that time.
2632 (let ((gud-filter-defer-flag t))
2633 ;; Process now any text we previously saved up.
2634 (if gud-filter-pending-text
2635 (setq string (concat gud-filter-pending-text string)
2636 gud-filter-pending-text nil))
2638 (with-current-buffer (process-buffer proc)
2639 ;; If we have been so requested, delete the debugger prompt.
2642 (if (marker-buffer gud-delete-prompt-marker)
2643 (let ((inhibit-read-only t))
2644 (delete-region (process-mark proc)
2645 gud-delete-prompt-marker)
2646 (comint-update-fence)
2647 (set-marker gud-delete-prompt-marker nil)))
2648 ;; Save the process output, checking for source file markers.
2649 (setq output (gud-marker-filter string))
2650 ;; Check for a filename-and-line number.
2651 ;; Don't display the specified file
2652 ;; unless (1) point is at or after the position where output appears
2653 ;; and (2) this buffer is on the screen.
2654 (setq process-window
2656 (>= (point) (process-mark proc))
2657 (get-buffer-window (current-buffer)))))
2659 ;; Let the comint filter do the actual insertion.
2660 ;; That lets us inherit various comint features.
2661 (comint-output-filter proc output))
2663 ;; Put the arrow on the source line.
2664 ;; This must be outside of the save-excursion
2665 ;; in case the source file is our current buffer.
2667 (with-selected-window process-window
2668 (gud-display-frame))
2669 ;; We have to be in the proper buffer, (process-buffer proc),
2670 ;; but not in a save-excursion, because that would restore point.
2671 (with-current-buffer (process-buffer proc)
2672 (gud-display-frame))))
2674 ;; If we deferred text that arrived during this processing,
2676 (if gud-filter-pending-text
2677 (gud-filter proc ""))))))
2679 (defvar gud-minor-mode-type nil)
2680 (defvar gud-overlay-arrow-position nil)
2681 (add-to-list 'overlay-arrow-variable-list 'gud-overlay-arrow-position)
2683 (defun gud-sentinel (proc msg)
2684 (cond ((null (buffer-name (process-buffer proc)))
2686 ;; Stop displaying an arrow in a source file.
2687 (setq gud-overlay-arrow-position nil)
2688 (set-process-buffer proc nil)
2689 (if (and (boundp 'speedbar-frame)
2690 (string-equal speedbar-initial-expansion-list-name "GUD"))
2691 (speedbar-change-initial-expansion-list
2692 speedbar-previously-used-expansion-list-name))
2693 (if (memq gud-minor-mode-type '(gdbmi gdba))
2696 ((memq (process-status proc) '(signal exit))
2697 ;; Stop displaying an arrow in a source file.
2698 (setq gud-overlay-arrow-position nil)
2699 (if (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
2703 (let* ((obuf (current-buffer)))
2704 ;; save-excursion isn't the right thing if
2705 ;; process-buffer is current-buffer
2708 ;; Write something in *compilation* and hack its mode line,
2709 (set-buffer (process-buffer proc))
2710 ;; Fix the mode line.
2711 (setq mode-line-process
2713 (symbol-name (process-status proc))))
2714 (force-mode-line-update)
2716 (insert ?\n mode-name " " msg)
2718 (goto-char (point-max))
2719 (insert ?\n mode-name " " msg)))
2720 ;; If buffer and mode line will show that the process
2721 ;; is dead, we can delete it now. Otherwise it
2722 ;; will stay around until M-x list-processes.
2723 (delete-process proc))
2724 ;; Restore old buffer, but don't restore old point
2725 ;; if obuf is the gud buffer.
2726 (set-buffer obuf))))))
2728 (defun gud-kill-buffer-hook ()
2729 (setq gud-minor-mode-type gud-minor-mode)
2731 (kill-process (get-buffer-process (current-buffer)))
2735 (dolist (buffer (buffer-list))
2736 (unless (eq buffer gud-comint-buffer)
2737 (with-current-buffer buffer
2738 (when gud-minor-mode
2739 (setq gud-minor-mode nil)
2740 (kill-local-variable 'tool-bar-map))))))
2742 (defun gud-display-frame ()
2743 "Find and obey the last filename-and-line marker from the debugger.
2744 Obeying it means displaying in another window the specified file and line."
2746 (when gud-last-frame
2748 (gud-display-line (car gud-last-frame) (cdr gud-last-frame))
2749 (setq gud-last-last-frame gud-last-frame
2750 gud-last-frame nil)))
2752 ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen
2753 ;; and that its line LINE is visible.
2754 ;; Put the overlay-arrow on the line LINE in that buffer.
2755 ;; Most of the trickiness in here comes from wanting to preserve the current
2756 ;; region-restriction if that's possible. We use an explicit display-buffer
2757 ;; to get around the fact that this is called inside a save-excursion.
2759 (defun gud-display-line (true-file line)
2760 (let* ((last-nonmenu-event t) ; Prevent use of dialog box for questions.
2762 (with-current-buffer gud-comint-buffer
2763 (gud-find-file true-file)))
2764 (window (and buffer (or (get-buffer-window buffer)
2765 (if (memq gud-minor-mode '(gdbmi gdba))
2766 (gdb-display-source-buffer buffer))
2767 (display-buffer buffer))))
2771 (with-current-buffer buffer
2772 (unless (or (verify-visited-file-modtime buffer) gud-keep-buffer)
2774 (format "File %s changed on disk. Reread from disk? "
2777 (setq gud-keep-buffer t)))
2782 (or gud-overlay-arrow-position
2783 (setq gud-overlay-arrow-position (make-marker)))
2784 (set-marker gud-overlay-arrow-position (point) (current-buffer))
2785 ;; If they turned on hl-line, move the hl-line highlight to
2786 ;; the arrow's line.
2787 (when (featurep 'hl-line)
2789 (global-hl-line-mode
2790 (global-hl-line-highlight))
2791 ((and hl-line-mode hl-line-sticky-flag)
2792 (hl-line-highlight)))))
2793 (cond ((or (< pos (point-min)) (> pos (point-max)))
2796 (if window (set-window-point window gud-overlay-arrow-position))))))
2798 ;; The gud-call function must do the right thing whether its invoking
2799 ;; keystroke is from the GUD buffer itself (via major-mode binding)
2800 ;; or a C buffer. In the former case, we want to supply data from
2801 ;; gud-last-frame. Here's how we do it:
2803 (defun gud-format-command (str arg)
2804 (let ((insource (not (eq (current-buffer) gud-comint-buffer)))
2805 (frame (or gud-last-frame gud-last-last-frame))
2808 (let ((case-fold-search nil))
2809 (string-match "\\([^%]*\\)%\\([adefFlpc]\\)" str)))
2810 (let ((key (string-to-char (match-string 2 str)))
2814 (setq subst (file-name-nondirectory (if insource
2818 (setq subst (file-name-sans-extension
2819 (file-name-nondirectory (if insource
2823 (setq subst (file-name-directory (if insource
2827 (setq subst (int-to-string
2831 (+ (count-lines (point-min) (point))
2835 (setq subst (gud-find-expr)))
2837 (setq subst (gud-read-address)))
2847 (+ (count-lines (point-min) (point))
2851 (setq subst (if arg (int-to-string arg)))))
2852 (setq result (concat result (match-string 1 str) subst)))
2853 (setq str (substring str (match-end 2))))
2854 ;; There might be text left in STR when the loop ends.
2855 (concat result str)))
2857 (defun gud-read-address ()
2858 "Return a string containing the core-address found in the buffer at point."
2861 (let ((pt (point)) found begin)
2862 (setq found (if (search-backward "0x" (- pt 7) t) (point)))
2864 (found (forward-char 2)
2865 (buffer-substring found
2866 (progn (re-search-forward "[^0-9a-f]")
2869 (t (setq begin (progn (re-search-backward "[^0-9]")
2873 (re-search-forward "[^0-9]")
2875 (buffer-substring begin (point))))))))
2877 (defun gud-call (fmt &optional arg)
2878 (let ((msg (gud-format-command fmt arg)))
2879 (message "Command: %s" msg)
2881 (gud-basic-call msg)))
2883 (defun gud-basic-call (command)
2884 "Invoke the debugger COMMAND displaying source in other window."
2887 (let ((proc (get-buffer-process gud-comint-buffer)))
2888 (or proc (error "Current buffer has no process"))
2889 ;; Arrange for the current prompt to get deleted.
2891 (set-buffer gud-comint-buffer)
2894 (if (marker-position gud-delete-prompt-marker)
2895 ;; We get here when printing an expression.
2896 (goto-char gud-delete-prompt-marker)
2897 (goto-char (process-mark proc))
2899 (if (looking-at comint-prompt-regexp)
2900 (set-marker gud-delete-prompt-marker (point)))
2901 (if (memq gud-minor-mode '(gdbmi gdba))
2902 (apply comint-input-sender (list proc command))
2903 (process-send-string proc (concat command "\n")))))))
2905 (defun gud-refresh (&optional arg)
2906 "Fix up a possibly garbled display, and redraw the arrow."
2908 (or gud-last-frame (setq gud-last-frame gud-last-last-frame))
2912 ;; Code for parsing expressions out of C or Fortran code. The single entry
2913 ;; point is gud-find-expr, which tries to return an lvalue expression from
2916 (defvar gud-find-expr-function 'gud-find-c-expr)
2918 (defun gud-find-expr (&rest args)
2919 (let ((expr (if (and transient-mark-mode mark-active)
2920 (buffer-substring (region-beginning) (region-end))
2921 (apply gud-find-expr-function args))))
2923 (if (string-match "\n" expr)
2924 (error "Expression must not include a newline"))
2925 (with-current-buffer gud-comint-buffer
2927 (goto-char (process-mark (get-buffer-process gud-comint-buffer)))
2929 (when (looking-at comint-prompt-regexp)
2930 (set-marker gud-delete-prompt-marker (point))
2931 (set-marker-insertion-type gud-delete-prompt-marker t))
2932 (insert (concat expr " = ")))))
2935 ;; The next eight functions are hacked from gdbsrc.el by
2936 ;; Debby Ayers <ayers@asc.slb.com>,
2937 ;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx.
2939 (defun gud-find-c-expr ()
2940 "Returns the expr that surrounds point."
2944 (expr (gud-innermost-expr))
2945 (test-expr (gud-prev-expr)))
2946 (while (and test-expr (gud-expr-compound test-expr expr))
2947 (let ((prev-expr expr))
2948 (setq expr (cons (car test-expr) (cdr expr)))
2949 (goto-char (car expr))
2950 (setq test-expr (gud-prev-expr))
2951 ;; If we just pasted on the condition of an if or while,
2952 ;; throw it away again.
2953 (if (member (buffer-substring (car test-expr) (cdr test-expr))
2954 '("if" "while" "for"))
2958 (setq test-expr (gud-next-expr))
2959 (while (gud-expr-compound expr test-expr)
2960 (setq expr (cons (car expr) (cdr test-expr)))
2961 (setq test-expr (gud-next-expr)))
2962 (buffer-substring (car expr) (cdr expr)))))
2964 (defun gud-innermost-expr ()
2965 "Returns the smallest expr that point is in; move point to beginning of it.
2966 The expr is represented as a cons cell, where the car specifies the point in
2967 the current buffer that marks the beginning of the expr and the cdr specifies
2968 the character after the end of the expr."
2969 (let ((p (point)) begin end)
2971 (setq begin (point))
2984 (defun gud-backward-sexp ()
2985 "Version of `backward-sexp' that catches errors."
2990 (defun gud-forward-sexp ()
2991 "Version of `forward-sexp' that catches errors."
2996 (defun gud-prev-expr ()
2997 "Returns the previous expr, point is set to beginning of that expr.
2998 The expr is represented as a cons cell, where the car specifies the point in
2999 the current buffer that marks the beginning of the expr and the cdr specifies
3000 the character after the end of the expr"
3001 (let ((begin) (end))
3003 (setq begin (point))
3009 (defun gud-next-expr ()
3010 "Returns the following expr, point is set to beginning of that expr.
3011 The expr is represented as a cons cell, where the car specifies the point in
3012 the current buffer that marks the beginning of the expr and the cdr specifies
3013 the character after the end of the expr."
3014 (let ((begin) (end))
3019 (setq begin (point))
3022 (defun gud-expr-compound-sep (span-start span-end)
3023 "Scan from SPAN-START to SPAN-END for punctuation characters.
3024 If `->' is found, return `?.'. If `.' is found, return `?.'.
3025 If any other punctuation is found, return `??'.
3026 If no punctuation is found, return `? '."
3029 (while (< span-start span-end)
3030 (setq syntax (char-syntax (char-after span-start)))
3033 ((= syntax ?.) (setq syntax (char-after span-start))
3035 ((= syntax ?.) (setq result ?.))
3036 ((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>))
3038 (setq span-start (+ span-start 1)))
3039 (t (setq span-start span-end)
3040 (setq result ??)))))
3041 (setq span-start (+ span-start 1)))
3044 (defun gud-expr-compound (first second)
3045 "Non-nil if concatenating FIRST and SECOND makes a single C expression.
3046 The two exprs are represented as a cons cells, where the car
3047 specifies the point in the current buffer that marks the beginning of the
3048 expr and the cdr specifies the character after the end of the expr.
3049 Link exprs of the form:
3056 (let ((span-start (cdr first))
3057 (span-end (car second))
3059 (setq syntax (gud-expr-compound-sep span-start span-end))
3061 ((= (car first) (car second)) nil)
3062 ((= (cdr first) (cdr second)) nil)
3065 (setq span-start (char-after (- span-start 1)))
3066 (setq span-end (char-after span-end))
3068 ((= span-start ?)) t)
3069 ((= span-start ?]) t)
3075 (defun gud-find-class (f line)
3076 "Find fully qualified class in file F at line LINE.
3077 This function uses the `gud-jdb-classpath' (and optional
3078 `gud-jdb-sourcepath') list(s) to derive a file
3079 pathname relative to its classpath directory. The values in
3080 `gud-jdb-classpath' are assumed to have been converted to absolute
3081 pathname standards using file-truename.
3082 If F is visited by a buffer and its mode is CC-mode(Java),
3083 syntactic information of LINE is used to find the enclosing (nested)
3084 class string which is appended to the top level
3085 class of the file (using s to separate nested class ids)."
3086 ;; Convert f to a standard representation and remove suffix
3087 (if (and gud-jdb-use-classpath (or gud-jdb-classpath gud-jdb-sourcepath))
3089 (let ((cplist (append gud-jdb-sourcepath gud-jdb-classpath))
3090 (fbuffer (get-file-buffer f))
3091 syntax-symbol syntax-point class-found)
3092 (setq f (file-name-sans-extension (file-truename f)))
3093 ;; Syntax-symbol returns the symbol of the *first* element
3094 ;; in the syntactical analysis result list, syntax-point
3095 ;; returns the buffer position of same
3096 (fset 'syntax-symbol (lambda (x) (c-langelem-sym (car x))))
3097 (fset 'syntax-point (lambda (x) (c-langelem-pos (car x))))
3098 ;; Search through classpath list for an entry that is
3100 (while (and cplist (not class-found))
3101 (if (string-match (car cplist) f)
3103 (mapconcat 'identity
3105 (substring f (+ (match-end 0) 1))
3107 (setq cplist (cdr cplist)))
3108 ;; if f is visited by a java(cc-mode) buffer, walk up the
3109 ;; syntactic information chain and collect any 'inclass
3110 ;; symbols until 'topmost-intro is reached to find out if
3111 ;; point is within a nested class
3112 (if (and fbuffer (equal (symbol-file 'java-mode) "cc-mode"))
3114 (set-buffer fbuffer)
3115 (let ((nclass) (syntax))
3116 ;; While the c-syntactic information does not start
3117 ;; with the 'topmost-intro symbol, there may be
3118 ;; nested classes...
3119 (while (not (eq 'topmost-intro
3120 (syntax-symbol (c-guess-basic-syntax))))
3121 ;; Check if the current position c-syntactic
3122 ;; analysis has 'inclass
3123 (setq syntax (c-guess-basic-syntax))
3125 (and (not (eq 'inclass (syntax-symbol syntax)))
3127 (setq syntax (cdr syntax)))
3128 (if (eq 'inclass (syntax-symbol syntax))
3130 (goto-char (syntax-point syntax))
3131 ;; Now we're at the beginning of a class
3132 ;; definition. Find class name
3134 "[A-Za-z0-9 \t\n]*?class[ \t\n]+\\([^ \t\n]+\\)")
3136 (append (list (match-string-no-properties 1))
3138 (setq syntax (c-guess-basic-syntax))
3139 (while (and (not (syntax-point syntax)) (cdr syntax))
3140 (setq syntax (cdr syntax)))
3141 (goto-char (syntax-point syntax))
3143 (string-match (concat (car nclass) "$") class-found)
3145 (replace-match (mapconcat 'identity nclass "$")
3146 t t class-found)))))
3147 (if (not class-found)
3148 (message "gud-find-class: class for file %s not found!" f))
3150 ;; Not using classpath - try class/source association list
3151 (let ((class-found (rassoc f gud-jdb-class-source-alist)))
3154 (message "gud-find-class: class for file %s not found in gud-jdb-class-source-alist!" f)
3158 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3159 ;;; GDB script mode ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3160 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
3162 (defvar gdb-script-mode-syntax-table
3163 (let ((st (make-syntax-table)))
3164 (modify-syntax-entry ?' "\"" st)
3165 (modify-syntax-entry ?# "<" st)
3166 (modify-syntax-entry ?\n ">" st)
3169 (defvar gdb-script-font-lock-keywords
3170 '(("^define\\s-+\\(\\(\\w\\|\\s_\\)+\\)" (1 font-lock-function-name-face))
3171 ("\\$\\(\\w+\\)" (1 font-lock-variable-name-face))
3172 ("^\\s-*\\(\\w\\(\\w\\|\\s_\\)*\\)" (1 font-lock-keyword-face))))
3174 ;; FIXME: The keyword "end" associated with "document"
3175 ;; should have font-lock-keyword-face (currently font-lock-doc-face).
3176 (defvar gdb-script-font-lock-syntactic-keywords
3177 '(("^document\\s-.*\\(\n\\)" (1 "< b"))
3178 ;; It would be best to change the \n in front, but it's more difficult.
3179 ("^en\\(d\\)\\>" (1 "> b"))))
3181 (defun gdb-script-font-lock-syntactic-face (state)
3183 ((nth 3 state) font-lock-string-face)
3184 ((nth 7 state) font-lock-doc-face)
3185 (t font-lock-comment-face)))
3187 (defvar gdb-script-basic-indent 2)
3189 (defun gdb-script-skip-to-head ()
3190 "We're just in front of an `end' and we need to go to its head."
3191 (while (and (re-search-backward "^\\s-*\\(\\(end\\)\\|define\\|document\\|if\\|while\\|commands\\)\\>" nil 'move)
3193 (gdb-script-skip-to-head)))
3195 (defun gdb-script-calculate-indentation ()
3197 ((looking-at "end\\>")
3198 (gdb-script-skip-to-head)
3199 (current-indentation))
3200 ((looking-at "else\\>")
3201 (while (and (re-search-backward "^\\s-*\\(if\\|\\(end\\)\\)\\>" nil 'move)
3203 (gdb-script-skip-to-head))
3204 (current-indentation))
3206 (forward-comment (- (point-max)))
3208 (skip-chars-forward " \t")
3209 (+ (current-indentation)
3210 (if (looking-at "\\(if\\|while\\|define\\|else\\|commands\\)\\>")
3211 gdb-script-basic-indent 0)))))
3213 (defun gdb-script-indent-line ()
3214 "Indent current line of GDB script."
3216 (if (and (eq (get-text-property (point) 'face) font-lock-doc-face)
3219 (skip-chars-forward " \t")
3220 (not (looking-at "end\\>"))))
3222 (let* ((savep (point))
3223 (indent (condition-case nil
3226 (skip-chars-forward " \t")
3227 (if (>= (point) savep) (setq savep nil))
3228 (max (gdb-script-calculate-indentation) 0))
3231 (save-excursion (indent-line-to indent))
3232 (indent-line-to indent)))))
3234 ;; Derived from cfengine.el.
3235 (defun gdb-script-beginning-of-defun ()
3236 "`beginning-of-defun' function for Gdb script mode.
3237 Treats actions as defuns."
3238 (unless (<= (current-column) (current-indentation))
3240 (if (re-search-backward "^define \\|^document " nil t)
3242 (goto-char (point-min)))
3245 ;; Derived from cfengine.el.
3246 (defun gdb-script-end-of-defun ()
3247 "`end-of-defun' function for Gdb script mode.
3248 Treats actions as defuns."
3250 (if (re-search-forward "^end" nil t)
3252 (goto-char (point-max)))
3256 (add-to-list 'auto-mode-alist '("/\\.gdbinit" . gdb-script-mode))
3259 (define-derived-mode gdb-script-mode nil "GDB-Script"
3260 "Major mode for editing GDB scripts"
3261 (set (make-local-variable 'comment-start) "#")
3262 (set (make-local-variable 'comment-start-skip) "#+\\s-*")
3263 (set (make-local-variable 'outline-regexp) "[ \t]")
3264 (set (make-local-variable 'imenu-generic-expression)
3265 '((nil "^define[ \t]+\\(\\w+\\)" 1)))
3266 (set (make-local-variable 'indent-line-function) 'gdb-script-indent-line)
3267 (set (make-local-variable 'beginning-of-defun-function)
3268 #'gdb-script-beginning-of-defun)
3269 (set (make-local-variable 'end-of-defun-function)
3270 #'gdb-script-end-of-defun)
3271 (set (make-local-variable 'font-lock-defaults)
3272 '(gdb-script-font-lock-keywords nil nil ((?_ . "w")) nil
3273 (font-lock-syntactic-keywords
3274 . gdb-script-font-lock-syntactic-keywords)
3275 (font-lock-syntactic-face-function
3276 . gdb-script-font-lock-syntactic-face))))
3279 ;;; tooltips for GUD
3281 ;;; Customizable settings
3283 (define-minor-mode gud-tooltip-mode
3284 "Toggle the display of GUD tooltips."
3289 (if gud-tooltip-mode
3291 (add-hook 'change-major-mode-hook 'gud-tooltip-change-major-mode)
3292 (add-hook 'pre-command-hook 'tooltip-hide)
3293 (add-hook 'tooltip-hook 'gud-tooltip-tips)
3294 (define-key global-map [mouse-movement] 'gud-tooltip-mouse-motion))
3295 (unless tooltip-mode (remove-hook 'pre-command-hook 'tooltip-hide)
3296 (remove-hook 'change-major-mode-hook 'gud-tooltip-change-major-mode)
3297 (remove-hook 'tooltip-hook 'gud-tooltip-tips)
3298 (define-key global-map [mouse-movement] 'ignore)))
3299 (gud-tooltip-activate-mouse-motions-if-enabled)
3300 (if (and gud-comint-buffer
3301 (buffer-name gud-comint-buffer); gud-comint-buffer might be killed
3302 (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
3304 (if gud-tooltip-mode
3306 (dolist (buffer (buffer-list))
3307 (unless (eq buffer gud-comint-buffer)
3308 (with-current-buffer buffer
3309 (when (and (memq gud-minor-mode '(gdbmi gdba))
3310 (not (string-match "\\`\\*.+\\*\\'"
3312 (make-local-variable 'gdb-define-alist)
3313 (gdb-create-define-alist)
3314 (add-hook 'after-save-hook
3315 'gdb-create-define-alist nil t))))))
3316 (kill-local-variable 'gdb-define-alist)
3317 (remove-hook 'after-save-hook 'gdb-create-define-alist t))))
3319 (defcustom gud-tooltip-modes '(gud-mode c-mode c++-mode fortran-mode
3321 "List of modes for which to enable GUD tooltips."
3326 (defcustom gud-tooltip-display
3327 '((eq (tooltip-event-buffer gud-tooltip-event)
3328 (marker-buffer gud-overlay-arrow-position)))
3329 "List of forms determining where GUD tooltips are displayed.
3331 Forms in the list are combined with AND. The default is to display
3332 only tooltips in the buffer containing the overlay arrow."
3337 (defcustom gud-tooltip-echo-area nil
3338 "Use the echo area instead of frames for GUD tooltips."
3343 (define-obsolete-variable-alias 'tooltip-gud-modes
3344 'gud-tooltip-modes "22.1")
3345 (define-obsolete-variable-alias 'tooltip-gud-display
3346 'gud-tooltip-display "22.1")
3348 ;;; Reacting on mouse movements
3350 (defun gud-tooltip-change-major-mode ()
3351 "Function added to `change-major-mode-hook' when tooltip mode is on."
3352 (add-hook 'post-command-hook 'gud-tooltip-activate-mouse-motions-if-enabled))
3354 (defun gud-tooltip-activate-mouse-motions-if-enabled ()
3355 "Reconsider for all buffers whether mouse motion events are desired."
3356 (remove-hook 'post-command-hook
3357 'gud-tooltip-activate-mouse-motions-if-enabled)
3358 (dolist (buffer (buffer-list))
3361 (if (and gud-tooltip-mode
3362 (memq major-mode gud-tooltip-modes))
3363 (gud-tooltip-activate-mouse-motions t)
3364 (gud-tooltip-activate-mouse-motions nil)))))
3366 (defvar gud-tooltip-mouse-motions-active nil
3367 "Locally t in a buffer if tooltip processing of mouse motion is enabled.")
3369 (defun gud-tooltip-activate-mouse-motions (activatep)
3370 "Activate/deactivate mouse motion events for the current buffer.
3371 ACTIVATEP non-nil means activate mouse motion events."
3374 (make-local-variable 'gud-tooltip-mouse-motions-active)
3375 (setq gud-tooltip-mouse-motions-active t)
3376 (make-local-variable 'track-mouse)
3377 (setq track-mouse t))
3378 (when gud-tooltip-mouse-motions-active
3379 (kill-local-variable 'gud-tooltip-mouse-motions-active)
3380 (kill-local-variable 'track-mouse))))
3382 (defun gud-tooltip-mouse-motion (event)
3383 "Command handler for mouse movement events in `global-map'."
3386 (when (car (mouse-pixel-position))
3387 (setq tooltip-last-mouse-motion-event (copy-sequence event))
3388 (tooltip-start-delayed-tip)))
3392 (defvar gud-tooltip-original-filter nil
3393 "Process filter to restore after GUD output has been received.")
3395 (defvar gud-tooltip-dereference nil
3396 "Non-nil means print expressions with a `*' in front of them.
3397 For C this would dereference a pointer expression.")
3399 (defvar gud-tooltip-event nil
3400 "The mouse movement event that led to a tooltip display.
3401 This event can be examined by forms in GUD-TOOLTIP-DISPLAY.")
3403 (defun gud-tooltip-dereference (&optional arg)
3404 "Toggle whether tooltips should show `* expr' or `expr'.
3405 With arg, dereference expr iff arg is positive."
3407 (setq gud-tooltip-dereference
3409 (not gud-tooltip-dereference)
3410 (> (prefix-numeric-value arg) 0)))
3411 (message "Dereferencing is now %s."
3412 (if gud-tooltip-dereference "on" "off")))
3414 (define-obsolete-function-alias 'tooltip-gud-toggle-dereference
3415 'gud-tooltip-dereference "22.1")
3417 ; This will only display data that comes in one chunk.
3418 ; Larger arrays (say 400 elements) are displayed in
3419 ; the tooltip incompletely and spill over into the gud buffer.
3420 ; Switching the process-filter creates timing problems and
3421 ; it may be difficult to do better. Using annotations as in
3422 ; gdb-ui.el gets round this problem.
3423 (defun gud-tooltip-process-output (process output)
3424 "Process debugger output and show it in a tooltip window."
3425 (set-process-filter process gud-tooltip-original-filter)
3426 (tooltip-show (tooltip-strip-prompt process output)
3427 (or gud-tooltip-echo-area tooltip-use-echo-area)))
3429 (defun gud-tooltip-print-command (expr)
3430 "Return a suitable command to print the expression EXPR."
3431 (case gud-minor-mode
3432 (gdba (concat "server print " expr))
3433 ((dbx gdbmi) (concat "print " expr))
3434 ((xdb pdb) (concat "p " expr))
3435 (sdb (concat expr "/"))))
3437 (defun gud-tooltip-tips (event)
3438 "Show tip for identifier or selection under the mouse.
3439 The mouse must either point at an identifier or inside a selected
3440 region for the tip window to be shown. If gud-tooltip-dereference is t,
3441 add a `*' in front of the printed expression. In the case of a C program
3442 controlled by GDB, show the associated #define directives when program is
3445 This function must return nil if it doesn't handle EVENT."
3447 (when (and (eventp event)
3450 (buffer-name gud-comint-buffer); might be killed
3451 (setq process (get-buffer-process gud-comint-buffer))
3452 (posn-point (event-end event))
3453 (or (and (eq gud-minor-mode 'gdba) (not gdb-active-process))
3454 (progn (setq gud-tooltip-event event)
3455 (eval (cons 'and gud-tooltip-display)))))
3456 (let ((expr (tooltip-expr-to-print event)))
3458 (if (and (eq gud-minor-mode 'gdba)
3459 (not gdb-active-process))
3461 (with-current-buffer
3462 (window-buffer (let ((mouse (mouse-position)))
3463 (window-at (cadr mouse)
3465 (let ((define-elt (assoc expr gdb-define-alist)))
3466 (unless (null define-elt)
3469 (or gud-tooltip-echo-area tooltip-use-echo-area))
3471 (when gud-tooltip-dereference
3472 (setq expr (concat "*" expr)))
3473 (let ((cmd (gud-tooltip-print-command expr)))
3474 (when (and gud-tooltip-mode (eq gud-minor-mode 'gdb))
3475 (gud-tooltip-mode -1)
3476 (message-box "Using GUD tooltips in this mode is unsafe\n\
3477 so they have been disabled."))
3478 (unless (null cmd) ; CMD can be nil if unknown debugger
3479 (if (memq gud-minor-mode '(gdba gdbmi))
3483 gdb-server-prefix "macro expand " expr "\n")
3484 `(lambda () (gdb-tooltip-print-1 ,expr))))
3486 (list (concat cmd "\n")
3487 `(lambda () (gdb-tooltip-print ,expr)))))
3488 (setq gud-tooltip-original-filter (process-filter process))
3489 (set-process-filter process 'gud-tooltip-process-output)
3490 (gud-basic-call cmd))
3495 ;;; arch-tag: 6d990948-df65-461a-be39-1c7fb83ac4c4
3496 ;;; gud.el ends here