Mercurial > hg > xemacs-beta
comparison lisp/comint/gdb.el @ 0:376386a54a3c r19-14
Import from CVS: tag r19-14
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date | Mon, 13 Aug 2007 08:45:50 +0200 |
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1 ;;; gdb.el --- run gdb under Emacs | |
2 | |
3 ;; Author: W. Schelter, University of Texas | |
4 ;; wfs@rascal.ics.utexas.edu | |
5 ;; Rewritten by rms. | |
6 ;; Keywords: c, unix, tools, debugging | |
7 | |
8 ;; Some ideas are due to Masanobu. | |
9 | |
10 ;; This file is part of XEmacs. | |
11 | |
12 ;; XEmacs is free software; you can redistribute it and/or modify it | |
13 ;; under the terms of the GNU General Public License as published by | |
14 ;; the Free Software Foundation; either version 2, or (at your option) | |
15 ;; any later version. | |
16 | |
17 ;; XEmacs is distributed in the hope that it will be useful, but | |
18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 ;; General Public License for more details. | |
21 | |
22 ;; You should have received a copy of the GNU General Public License | |
23 ;; along with XEmacs; see the file COPYING. If not, write to the Free | |
24 ;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | |
26 ;; Description of GDB interface: | |
27 | |
28 ;; A facility is provided for the simultaneous display of the source code | |
29 ;; in one window, while using gdb to step through a function in the | |
30 ;; other. A small arrow in the source window, indicates the current | |
31 ;; line. | |
32 | |
33 ;; Starting up: | |
34 | |
35 ;; In order to use this facility, invoke the command GDB to obtain a | |
36 ;; shell window with the appropriate command bindings. You will be asked | |
37 ;; for the name of a file to run. Gdb will be invoked on this file, in a | |
38 ;; window named *gdb-foo* if the file is foo. | |
39 | |
40 ;; M-s steps by one line, and redisplays the source file and line. | |
41 | |
42 ;; You may easily create additional commands and bindings to interact | |
43 ;; with the display. For example to put the gdb command next on \M-n | |
44 ;; (def-gdb next "\M-n") | |
45 | |
46 ;; This causes the emacs command gdb-next to be defined, and runs | |
47 ;; gdb-display-frame after the command. | |
48 | |
49 ;; gdb-display-frame is the basic display function. It tries to display | |
50 ;; in the other window, the file and line corresponding to the current | |
51 ;; position in the gdb window. For example after a gdb-step, it would | |
52 ;; display the line corresponding to the position for the last step. Or | |
53 ;; if you have done a backtrace in the gdb buffer, and move the cursor | |
54 ;; into one of the frames, it would display the position corresponding to | |
55 ;; that frame. | |
56 | |
57 ;; gdb-display-frame is invoked automatically when a filename-and-line-number | |
58 ;; appears in the output. | |
59 | |
60 (require 'comint) | |
61 (require 'shell) | |
62 | |
63 (condition-case nil | |
64 (if (featurep 'toolbar) | |
65 (require 'eos-toolbar "sun-eos-toolbar")) | |
66 (error nil)) | |
67 | |
68 (defvar gdb-last-frame) | |
69 (defvar gdb-delete-prompt-marker) | |
70 (defvar gdb-filter-accumulator) | |
71 (defvar gdb-last-frame-displayed-p) | |
72 (defvar gdb-arrow-extent nil) | |
73 (or (fboundp 'make-glyph) (fset 'make-glyph 'identity)) ; work w/ pre beta v12 | |
74 (defvar gdb-arrow-glyph (make-glyph "=>")) | |
75 | |
76 (make-face 'gdb-arrow-face) | |
77 (or (face-differs-from-default-p 'gdb-arrow-face) | |
78 ;; Usually has a better default value than highlight does | |
79 (copy-face 'isearch 'gdb-arrow-face)) | |
80 | |
81 ;; Hooks can side-effect extent arg to change extent properties | |
82 (defvar gdb-arrow-extent-hooks '()) | |
83 | |
84 (defvar gdb-prompt-pattern "^>\\|^(.*gdb[+]?) *\\|^---Type <return> to.*--- *" | |
85 "A regexp to recognize the prompt for gdb or gdb+.") | |
86 | |
87 (defvar gdb-mode-map nil | |
88 "Keymap for gdb-mode.") | |
89 | |
90 (defvar gdb-toolbar | |
91 '([eos::toolbar-stop-at-icon | |
92 gdb-toolbar-break | |
93 t | |
94 "Stop at selected position"] | |
95 [eos::toolbar-stop-in-icon | |
96 gdb-toolbar-break | |
97 t | |
98 "Stop in function whose name is selected"] | |
99 [eos::toolbar-clear-at-icon | |
100 gdb-toolbar-clear | |
101 t | |
102 "Clear at selected position"] | |
103 [eos::toolbar-evaluate-icon | |
104 nil | |
105 nil | |
106 "Evaluate selected expression; shows in separate XEmacs frame"] | |
107 [eos::toolbar-evaluate-star-icon | |
108 nil | |
109 nil | |
110 "Evaluate selected expression as a pointer; shows in separate XEmacs frame"] | |
111 [eos::toolbar-run-icon | |
112 gdb-run | |
113 t | |
114 "Run current program"] | |
115 [eos::toolbar-cont-icon | |
116 gdb-cont | |
117 t | |
118 "Continue current program"] | |
119 [eos::toolbar-step-into-icon | |
120 gdb-step | |
121 t | |
122 "Step into (aka step)"] | |
123 [eos::toolbar-step-over-icon | |
124 gdb-next | |
125 t | |
126 "Step over (aka next)"] | |
127 [eos::toolbar-up-icon | |
128 gdb-up | |
129 t | |
130 "Stack Up (towards \"cooler\" - less recently visited - frames)"] | |
131 [eos::toolbar-down-icon | |
132 gdb-down | |
133 t | |
134 "Stack Down (towards \"warmer\" - more recently visited - frames)"] | |
135 [eos::toolbar-fix-icon nil nil "Fix (not available with gdb)"] | |
136 [eos::toolbar-build-icon | |
137 toolbar-compile | |
138 t | |
139 "Build (aka make -NYI)"] | |
140 )) | |
141 | |
142 (if gdb-mode-map | |
143 nil | |
144 (setq gdb-mode-map (make-sparse-keymap)) | |
145 (set-keymap-name gdb-mode-map 'gdb-mode-map) | |
146 (set-keymap-parents gdb-mode-map (list comint-mode-map)) | |
147 (define-key gdb-mode-map "\C-l" 'gdb-refresh) | |
148 (define-key gdb-mode-map "\C-c\C-c" 'gdb-control-c-subjob) | |
149 (define-key gdb-mode-map "\t" 'comint-dynamic-complete) | |
150 (define-key gdb-mode-map "\M-?" 'comint-dynamic-list-completions)) | |
151 | |
152 (define-key ctl-x-map " " 'gdb-break) | |
153 (define-key ctl-x-map "&" 'send-gdb-command) | |
154 | |
155 ;;Of course you may use `def-gdb' with any other gdb command, including | |
156 ;;user defined ones. | |
157 | |
158 (defmacro def-gdb (name key &optional doc &rest forms) | |
159 (let* ((fun (intern (format "gdb-%s" name))) | |
160 (cstr (list 'if '(not (= 1 arg)) | |
161 (list 'format "%s %s" name 'arg) | |
162 name))) | |
163 (list 'progn | |
164 (nconc (list 'defun fun '(arg) | |
165 (or doc "") | |
166 '(interactive "p") | |
167 (list 'gdb-call cstr)) | |
168 forms) | |
169 (and key (list 'define-key 'gdb-mode-map key (list 'quote fun)))))) | |
170 | |
171 (def-gdb "step" "\M-s" "Step one source line with display" | |
172 (gdb-delete-arrow-extent)) | |
173 (def-gdb "stepi" "\M-i" "Step one instruction with display" | |
174 (gdb-delete-arrow-extent)) | |
175 (def-gdb "finish" "\C-c\C-f" "Finish executing current function" | |
176 (gdb-delete-arrow-extent)) | |
177 (def-gdb "run" nil "Run the current program" | |
178 (gdb-delete-arrow-extent)) | |
179 | |
180 ;;"next" and "cont" were bound to M-n and M-c in Emacs 18, but these are | |
181 ;;poor choices, since M-n is used for history navigation and M-c is | |
182 ;;capitalize-word. These are defined without key bindings so that users | |
183 ;;may choose their own bindings. | |
184 (def-gdb "next" "\C-c\C-n" "Step one source line (skip functions)" | |
185 (gdb-delete-arrow-extent)) | |
186 (def-gdb "cont" "\C-c\M-c" "Proceed with the program" | |
187 (gdb-delete-arrow-extent)) | |
188 | |
189 (def-gdb "up" "\C-c<" "Go up N stack frames (numeric arg) with display") | |
190 (def-gdb "down" "\C-c>" "Go down N stack frames (numeric arg) with display") | |
191 | |
192 (defvar gdb-display-mode nil | |
193 "Minor mode for gdb frame display") | |
194 (or (assq 'gdb-display-mode minor-mode-alist) | |
195 (setq minor-mode-alist | |
196 (purecopy | |
197 (append minor-mode-alist | |
198 '((gdb-display-mode " Frame")))))) | |
199 | |
200 (defun gdb-display-mode (&optional arg) | |
201 "Toggle GDB Frame display mode | |
202 With arg, turn display mode on if and only if arg is positive. | |
203 In the display minor mode, source file are displayed in another | |
204 window for repective \\[gdb-display-frame] commands." | |
205 (interactive "P") | |
206 (setq gdb-display-mode (if (null arg) | |
207 (not gdb-display-mode) | |
208 (> (prefix-numeric-value arg) 0)))) | |
209 | |
210 | |
211 (defun gdb-mode () | |
212 "Major mode for interacting with an inferior Gdb process. | |
213 The following commands are available: | |
214 | |
215 \\{gdb-mode-map} | |
216 | |
217 \\[gdb-display-frame] displays in the other window | |
218 the last line referred to in the gdb buffer. See also | |
219 \\[gdb-display-mode]. | |
220 | |
221 \\[gdb-step],\\[gdb-next], and \\[gdb-nexti] in the gdb window, | |
222 call gdb to step,next or nexti and then update the other window | |
223 with the current file and position. | |
224 | |
225 If you are in a source file, you may select a point to break | |
226 at, by doing \\[gdb-break]. | |
227 | |
228 Commands: | |
229 Many commands are inherited from comint mode. | |
230 Additionally we have: | |
231 | |
232 \\[gdb-display-frame] display frames file in other window | |
233 \\[gdb-step] advance one line in program | |
234 \\[send-gdb-command] used for special printing of an arg at the current point. | |
235 C-x SPACE sets break point at current line." | |
236 (interactive) | |
237 (comint-mode) | |
238 (use-local-map gdb-mode-map) | |
239 (set-syntax-table c-mode-syntax-table) | |
240 (make-local-variable 'gdb-last-frame-displayed-p) | |
241 (make-local-variable 'gdb-last-frame) | |
242 (make-local-variable 'gdb-delete-prompt-marker) | |
243 (make-local-variable 'gdb-display-mode) | |
244 (make-local-variable' gdb-filter-accumulator) | |
245 (setq gdb-last-frame nil | |
246 gdb-delete-prompt-marker nil | |
247 gdb-filter-accumulator nil | |
248 gdb-display-mode t | |
249 major-mode 'gdb-mode | |
250 mode-name "Inferior GDB" | |
251 comint-prompt-regexp gdb-prompt-pattern | |
252 gdb-last-frame-displayed-p t) | |
253 (set (make-local-variable 'shell-dirtrackp) t) | |
254 ;;(make-local-variable 'gdb-arrow-extent) | |
255 (and (extentp gdb-arrow-extent) | |
256 (delete-extent gdb-arrow-extent)) | |
257 (setq gdb-arrow-extent nil) | |
258 ;; XEmacs change: | |
259 (make-local-hook 'kill-buffer-hook) | |
260 (add-hook 'kill-buffer-hook 'gdb-delete-arrow-extent nil t) | |
261 (setq comint-input-sentinel 'shell-directory-tracker) | |
262 (run-hooks 'gdb-mode-hook)) | |
263 | |
264 (defun gdb-delete-arrow-extent () | |
265 (let ((inhibit-quit t)) | |
266 (if gdb-arrow-extent | |
267 (delete-extent gdb-arrow-extent)) | |
268 (setq gdb-arrow-extent nil))) | |
269 | |
270 (defvar current-gdb-buffer nil) | |
271 | |
272 ;;;###autoload | |
273 (defvar gdb-command-name "gdb" | |
274 "Pathname for executing gdb.") | |
275 | |
276 ;;;###autoload | |
277 (defun gdb (path &optional corefile) | |
278 "Run gdb on program FILE in buffer *gdb-FILE*. | |
279 The directory containing FILE becomes the initial working directory | |
280 and source-file directory for GDB. If you wish to change this, use | |
281 the GDB commands `cd DIR' and `directory'." | |
282 (interactive "FRun gdb on file: ") | |
283 (setq path (file-truename (expand-file-name path))) | |
284 (let ((file (file-name-nondirectory path))) | |
285 (switch-to-buffer (concat "*gdb-" file "*")) | |
286 (setq default-directory (file-name-directory path)) | |
287 (or (bolp) (newline)) | |
288 (insert "Current directory is " default-directory "\n") | |
289 (apply 'make-comint | |
290 (concat "gdb-" file) | |
291 (substitute-in-file-name gdb-command-name) | |
292 nil | |
293 "-fullname" | |
294 "-cd" default-directory | |
295 file | |
296 (and corefile (list corefile))) | |
297 (set-process-filter (get-buffer-process (current-buffer)) 'gdb-filter) | |
298 (set-process-sentinel (get-buffer-process (current-buffer)) 'gdb-sentinel) | |
299 ;; XEmacs change: turn on gdb mode after setting up the proc filters | |
300 ;; for the benefit of shell-font.el | |
301 (gdb-mode) | |
302 (gdb-set-buffer))) | |
303 | |
304 ;;;####autoload | |
305 (defun gdb-with-core (file corefile) | |
306 "Debug a program using a corefile." | |
307 (interactive "fProgram to debug: \nfCore file to use: ") | |
308 (gdb file corefile)) | |
309 | |
310 (defun gdb-set-buffer () | |
311 (cond ((eq major-mode 'gdb-mode) | |
312 (setq current-gdb-buffer (current-buffer)) | |
313 (if (featurep 'eos-toolbar) | |
314 (set-specifier default-toolbar (cons (current-buffer) | |
315 gdb-toolbar)))))) | |
316 | |
317 | |
318 ;; This function is responsible for inserting output from GDB | |
319 ;; into the buffer. | |
320 ;; Aside from inserting the text, it notices and deletes | |
321 ;; each filename-and-line-number; | |
322 ;; that GDB prints to identify the selected frame. | |
323 ;; It records the filename and line number, and maybe displays that file. | |
324 (defun gdb-filter (proc string) | |
325 (let ((inhibit-quit t)) | |
326 (save-current-buffer | |
327 (set-buffer (process-buffer proc)) | |
328 (if gdb-filter-accumulator | |
329 (gdb-filter-accumulate-marker | |
330 proc (concat gdb-filter-accumulator string)) | |
331 (gdb-filter-scan-input proc string))))) | |
332 | |
333 (defun gdb-filter-accumulate-marker (proc string) | |
334 (setq gdb-filter-accumulator nil) | |
335 (if (> (length string) 1) | |
336 (if (= (aref string 1) ?\032) | |
337 (let ((end (string-match "\n" string))) | |
338 (if end | |
339 (progn | |
340 (let* ((first-colon (string-match ":" string 2)) | |
341 (second-colon | |
342 (string-match ":" string (1+ first-colon)))) | |
343 (setq gdb-last-frame | |
344 (cons (substring string 2 first-colon) | |
345 (string-to-int | |
346 (substring string (1+ first-colon) | |
347 second-colon))))) | |
348 (setq gdb-last-frame-displayed-p nil) | |
349 (gdb-filter-scan-input proc | |
350 (substring string (1+ end)))) | |
351 (setq gdb-filter-accumulator string))) | |
352 (gdb-filter-insert proc "\032") | |
353 (gdb-filter-scan-input proc (substring string 1))) | |
354 (setq gdb-filter-accumulator string))) | |
355 | |
356 (defun gdb-filter-scan-input (proc string) | |
357 (if (equal string "") | |
358 (setq gdb-filter-accumulator nil) | |
359 (let ((start (string-match "\032" string))) | |
360 (if start | |
361 (progn (gdb-filter-insert proc (substring string 0 start)) | |
362 (gdb-filter-accumulate-marker proc | |
363 (substring string start))) | |
364 (gdb-filter-insert proc string))))) | |
365 | |
366 (defun gdb-filter-insert (proc string) | |
367 (let ((moving (= (point) (process-mark proc))) | |
368 (output-after-point (< (point) (process-mark proc)))) | |
369 (save-excursion | |
370 ;; Insert the text, moving the process-marker. | |
371 (goto-char (process-mark proc)) | |
372 (insert-before-markers string) | |
373 (set-marker (process-mark proc) (point)) | |
374 (gdb-maybe-delete-prompt) | |
375 ;; Check for a filename-and-line number. | |
376 (gdb-display-frame | |
377 ;; Don't display the specified file | |
378 ;; unless (1) point is at or after the position where output appears | |
379 ;; and (2) this buffer is on the screen. | |
380 (or output-after-point | |
381 (not (get-buffer-window (current-buffer)))) | |
382 ;; Display a file only when a new filename-and-line-number appears. | |
383 t)) | |
384 (if moving (goto-char (process-mark proc)))) | |
385 | |
386 (let (s) | |
387 (if (and (should-use-dialog-box-p) | |
388 (setq s (or (string-match " (y or n) *\\'" string) | |
389 (string-match " (yes or no) *\\'" string)))) | |
390 (gdb-mouse-prompt-hack (substring string 0 s) (current-buffer)))) | |
391 ) | |
392 | |
393 (defun gdb-mouse-prompt-hack (prompt buffer) | |
394 (popup-dialog-box | |
395 (list prompt | |
396 (vector "Yes" (list 'gdb-mouse-prompt-hack-answer 't buffer) t) | |
397 (vector "No" (list 'gdb-mouse-prompt-hack-answer 'nil buffer) t) | |
398 nil | |
399 (vector "Cancel" (list 'gdb-mouse-prompt-hack-answer 'nil buffer) t) | |
400 ))) | |
401 | |
402 (defun gdb-mouse-prompt-hack-answer (answer buffer) | |
403 (let ((b (current-buffer))) | |
404 (unwind-protect | |
405 (progn | |
406 (set-buffer buffer) | |
407 (goto-char (process-mark (get-buffer-process buffer))) | |
408 (delete-region (point) (point-max)) | |
409 (insert (if answer "yes" "no")) | |
410 (comint-send-input)) | |
411 (set-buffer b)))) | |
412 | |
413 (defun gdb-sentinel (proc msg) | |
414 (cond ((null (buffer-name (process-buffer proc))) | |
415 ;; buffer killed | |
416 ;; Stop displaying an arrow in a source file. | |
417 ;(setq overlay-arrow-position nil) -- done by kill-buffer-hook | |
418 (set-process-buffer proc nil)) | |
419 ((memq (process-status proc) '(signal exit)) | |
420 ;; Stop displaying an arrow in a source file. | |
421 (gdb-delete-arrow-extent) | |
422 ;; Fix the mode line. | |
423 (setq modeline-process | |
424 (concat ": gdb " (symbol-name (process-status proc)))) | |
425 (let* ((obuf (current-buffer))) | |
426 ;; save-excursion isn't the right thing if | |
427 ;; process-buffer is current-buffer | |
428 (unwind-protect | |
429 (progn | |
430 ;; Write something in *compilation* and hack its mode line, | |
431 (set-buffer (process-buffer proc)) | |
432 ;; Force mode line redisplay soon | |
433 (set-buffer-modified-p (buffer-modified-p)) | |
434 (if (eobp) | |
435 (insert ?\n mode-name " " msg) | |
436 (save-excursion | |
437 (goto-char (point-max)) | |
438 (insert ?\n mode-name " " msg))) | |
439 ;; If buffer and mode line will show that the process | |
440 ;; is dead, we can delete it now. Otherwise it | |
441 ;; will stay around until M-x list-processes. | |
442 (delete-process proc)) | |
443 ;; Restore old buffer, but don't restore old point | |
444 ;; if obuf is the gdb buffer. | |
445 (set-buffer obuf)))))) | |
446 | |
447 | |
448 (defun gdb-refresh (&optional arg) | |
449 "Fix up a possibly garbled display, and redraw the arrow." | |
450 (interactive "P") | |
451 (recenter arg) | |
452 (gdb-display-frame)) | |
453 | |
454 (defun gdb-display-frame (&optional nodisplay noauto) | |
455 "Find, obey and delete the last filename-and-line marker from GDB. | |
456 The marker looks like \\032\\032FILENAME:LINE:CHARPOS\\n. | |
457 Obeying it means displaying in another window the specified file and line." | |
458 (interactive) | |
459 (gdb-set-buffer) | |
460 (and gdb-last-frame (not nodisplay) | |
461 gdb-display-mode | |
462 (or (not gdb-last-frame-displayed-p) (not noauto)) | |
463 (progn (gdb-display-line (car gdb-last-frame) (cdr gdb-last-frame)) | |
464 (setq gdb-last-frame-displayed-p t)))) | |
465 | |
466 ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen | |
467 ;; and that its line LINE is visible. | |
468 ;; Put the overlay-arrow on the line LINE in that buffer. | |
469 | |
470 (defun gdb-display-line (true-file line &optional select-method) | |
471 ;; FILE to display | |
472 ;; LINE number to highlight and make visible | |
473 ;; SELECT-METHOD 'source, 'debugger, or 'none. (default is 'debugger) | |
474 (and (null select-method) (setq select-method 'debugger)) | |
475 (let* ((pre-display-buffer-function nil) ; screw it, put it all in one screen | |
476 (pop-up-windows t) | |
477 (source-buffer (find-file-noselect true-file)) | |
478 (source-window (display-buffer source-buffer)) | |
479 (debugger-window (get-buffer-window current-gdb-buffer)) | |
480 (extent gdb-arrow-extent) | |
481 pos) | |
482 ;; XEmacs change: make sure we find a window displaying the source file | |
483 ;; even if we are already sitting in it when a breakpoint is hit. | |
484 ;; Otherwise the t argument to display-buffer will prevent it from being | |
485 ;; displayed. | |
486 (save-excursion | |
487 (cond ((eq select-method 'debugger) | |
488 ;; might not already be displayed | |
489 (setq debugger-window (display-buffer current-gdb-buffer)) | |
490 (select-window debugger-window)) | |
491 ((eq select-method 'source) | |
492 (select-window source-window)))) | |
493 (and extent | |
494 (not (eq (extent-object extent) source-buffer)) | |
495 (setq extent (delete-extent extent))) | |
496 (or extent | |
497 (progn | |
498 (setq extent (make-extent 1 1 source-buffer)) | |
499 (set-extent-face extent 'gdb-arrow-face) | |
500 (set-extent-begin-glyph extent gdb-arrow-glyph) | |
501 (set-extent-begin-glyph-layout extent 'whitespace) | |
502 (set-extent-priority extent 2000) | |
503 (setq gdb-arrow-extent extent))) | |
504 (save-current-buffer | |
505 (set-buffer source-buffer) | |
506 (save-restriction | |
507 (widen) | |
508 (goto-line line) | |
509 (set-window-point source-window (point)) | |
510 (setq pos (point)) | |
511 (end-of-line) | |
512 (set-extent-endpoints extent pos (point)) | |
513 (run-hook-with-args 'gdb-arrow-extent-hooks extent)) | |
514 (cond ((or (< pos (point-min)) (> pos (point-max))) | |
515 (widen) | |
516 (goto-char pos)))) | |
517 ;; Added by Stig. It caused lots of problems for several users | |
518 ;; and since its purpose is unclear it is getting commented out. | |
519 ;;(and debugger-window | |
520 ;; (set-window-point debugger-window pos)) | |
521 )) | |
522 | |
523 (defun gdb-call (command) | |
524 "Invoke gdb COMMAND displaying source in other window." | |
525 (interactive) | |
526 (goto-char (point-max)) | |
527 ;; Record info on the last prompt in the buffer and its position. | |
528 ;; This is used in gdb-maybe-delete-prompt | |
529 ;; to prevent multiple prompts from accumulating. | |
530 (save-excursion | |
531 (goto-char (process-mark (get-buffer-process current-gdb-buffer))) | |
532 (let ((pt (point))) | |
533 (beginning-of-line) | |
534 (setq gdb-delete-prompt-marker | |
535 (if (= (point) pt) | |
536 nil | |
537 (list (point-marker) (- pt (point)) | |
538 (buffer-substring (point) pt)))))) | |
539 (gdb-set-buffer) | |
540 (process-send-string (get-buffer-process current-gdb-buffer) | |
541 (concat command "\n"))) | |
542 | |
543 (defun gdb-maybe-delete-prompt () | |
544 (if gdb-delete-prompt-marker | |
545 ;; Get the string that we used as the prompt before. | |
546 (let ((prompt (nth 2 gdb-delete-prompt-marker)) | |
547 (length (nth 1 gdb-delete-prompt-marker))) | |
548 ;; Position after it. | |
549 (goto-char (+ (car gdb-delete-prompt-marker) length)) | |
550 ;; Delete any duplicates of it which follow right after. | |
551 (while (and (<= (+ (point) length) (point-max)) | |
552 (string= prompt | |
553 (buffer-substring (point) (+ (point) length)))) | |
554 (delete-region (point) (+ (point) length))) | |
555 ;; If that didn't take us to where output is arriving, | |
556 ;; we have encountered something other than a prompt, | |
557 ;; so stop trying to delete any more prompts. | |
558 (if (not (= (point) | |
559 (process-mark (get-buffer-process current-gdb-buffer)))) | |
560 (progn | |
561 (set-marker (car gdb-delete-prompt-marker) nil) | |
562 (setq gdb-delete-prompt-marker nil)))))) | |
563 | |
564 (defun gdb-break (temp) | |
565 "Set GDB breakpoint at this source line. With ARG set temporary breakpoint." | |
566 (interactive "P") | |
567 (let* ((file-name (file-name-nondirectory buffer-file-name)) | |
568 (line (save-restriction | |
569 (widen) | |
570 (beginning-of-line) | |
571 (1+ (count-lines 1 (point))))) | |
572 (cmd (concat (if temp "tbreak " "break ") file-name ":" | |
573 (int-to-string line)))) | |
574 (set-buffer current-gdb-buffer) | |
575 (goto-char (process-mark (get-buffer-process current-gdb-buffer))) | |
576 (delete-region (point) (point-max)) | |
577 (insert cmd) | |
578 (comint-send-input) | |
579 ;;(process-send-string (get-buffer-process current-gdb-buffer) cmd) | |
580 )) | |
581 | |
582 (defun gdb-clear () | |
583 "Set GDB breakpoint at this source line." | |
584 (interactive) | |
585 (let* ((file-name (file-name-nondirectory buffer-file-name)) | |
586 (line (save-restriction | |
587 (widen) | |
588 (beginning-of-line) | |
589 (1+ (count-lines 1 (point))))) | |
590 (cmd (concat "clear " file-name ":" | |
591 (int-to-string line)))) | |
592 (set-buffer current-gdb-buffer) | |
593 (goto-char (process-mark (get-buffer-process current-gdb-buffer))) | |
594 (delete-region (point) (point-max)) | |
595 (insert cmd) | |
596 (comint-send-input) | |
597 ;;(process-send-string (get-buffer-process current-gdb-buffer) cmd) | |
598 )) | |
599 | |
600 (defun gdb-read-address() | |
601 "Return a string containing the core-address found in the buffer at point." | |
602 (save-excursion | |
603 (let ((pt (point)) found begin) | |
604 (setq found (if (search-backward "0x" (- pt 7) t)(point))) | |
605 (cond (found (forward-char 2) | |
606 (buffer-substring found | |
607 (progn (re-search-forward "[^0-9a-f]") | |
608 (forward-char -1) | |
609 (point)))) | |
610 (t (setq begin (progn (re-search-backward "[^0-9]") (forward-char 1) | |
611 (point))) | |
612 (forward-char 1) | |
613 (re-search-forward "[^0-9]") | |
614 (forward-char -1) | |
615 (buffer-substring begin (point))))))) | |
616 | |
617 | |
618 (defvar gdb-commands nil | |
619 "List of strings or functions used by send-gdb-command. | |
620 It is for customization by you.") | |
621 | |
622 (defun send-gdb-command (arg) | |
623 | |
624 "This command reads the number where the cursor is positioned. It | |
625 then inserts this ADDR at the end of the gdb buffer. A numeric arg | |
626 selects the ARG'th member COMMAND of the list gdb-print-command. If | |
627 COMMAND is a string, (format COMMAND ADDR) is inserted, otherwise | |
628 (funcall COMMAND ADDR) is inserted. eg. \"p (rtx)%s->fld[0].rtint\" | |
629 is a possible string to be a member of gdb-commands. " | |
630 | |
631 | |
632 (interactive "P") | |
633 (let (comm addr) | |
634 (if arg (setq comm (nth arg gdb-commands))) | |
635 (setq addr (gdb-read-address)) | |
636 (if (eq (current-buffer) current-gdb-buffer) | |
637 (set-mark (point))) | |
638 (cond (comm | |
639 (setq comm | |
640 (if (stringp comm) (format comm addr) (funcall comm addr)))) | |
641 (t (setq comm addr))) | |
642 (switch-to-buffer current-gdb-buffer) | |
643 (goto-char (point-max)) | |
644 (insert comm))) | |
645 | |
646 (defun gdb-control-c-subjob () | |
647 "Send a Control-C to the subprocess." | |
648 (interactive) | |
649 (process-send-string (get-buffer-process (current-buffer)) | |
650 "\C-c")) | |
651 | |
652 (defun gdb-toolbar-break () | |
653 (interactive) | |
654 (save-excursion | |
655 (message (car gdb-last-frame)) | |
656 (set-buffer (find-file-noselect (car gdb-last-frame))) | |
657 (gdb-break nil))) | |
658 | |
659 (defun gdb-toolbar-clear () | |
660 (interactive) | |
661 (save-excursion | |
662 (message (car gdb-last-frame)) | |
663 (set-buffer (find-file-noselect (car gdb-last-frame))) | |
664 (gdb-clear))) | |
665 | |
666 (provide 'gdb) |