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c4041829 | 1 | ;;; gud.el --- Grand Unified Debugger mode for gdb, sdb, dbx, xdb or perldb |
f961a17c | 2 | |
ee0155df | 3 | ;; Author: Eric S. Raymond <esr@snark.thyrsus.com> |
8ba194fc | 4 | ;; Maintainer: FSF |
f961a17c ER |
5 | ;; Keywords: unix, tools |
6 | ||
ac8da950 | 7 | ;; Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc. |
13b80a60 ER |
8 | |
9 | ;; This file is part of GNU Emacs. | |
10 | ||
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
12 | ;; it under the terms of the GNU General Public License as published by | |
24d725c2 | 13 | ;; the Free Software Foundation; either version 2, or (at your option) |
13b80a60 ER |
14 | ;; any later version. |
15 | ||
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | ;; Boston, MA 02111-1307, USA. | |
13b80a60 | 25 | |
f961a17c ER |
26 | ;;; Commentary: |
27 | ||
13b80a60 | 28 | ;; The ancestral gdb.el was by W. Schelter <wfs@rascal.ics.utexas.edu> |
24d725c2 | 29 | ;; It was later rewritten by rms. Some ideas were due to Masanobu. |
f961a17c | 30 | ;; Grand Unification (sdb/dbx support) by Eric S. Raymond <esr@thyrsus.com> |
13b80a60 | 31 | ;; The overloading code was then rewritten by Barry Warsaw <bwarsaw@cen.com>, |
6496f3d2 | 32 | ;; who also hacked the mode to use comint.el. Shane Hartman <shane@spr.com> |
0e0de659 | 33 | ;; added support for xdb (HPUX debugger). Rick Sladkey <jrs@world.std.com> |
f266485d | 34 | ;; wrote the GDB command completion code. Dave Love <d.love@dl.ac.uk> |
2291bfaa | 35 | ;; added the IRIX kluge, re-implemented the Mips-ish variant and added |
3b3703fa RS |
36 | ;; a menu. Brian D. Carlstrom <bdc@ai.mit.edu> combined the IRIX kluge with |
37 | ;; the gud-xdb-directories hack producing gud-dbx-directories. | |
13b80a60 | 38 | |
f961a17c ER |
39 | ;;; Code: |
40 | ||
13b80a60 | 41 | (require 'comint) |
e8a57935 | 42 | (require 'etags) |
13b80a60 | 43 | |
ee0155df | 44 | ;; ====================================================================== |
5b08a462 | 45 | ;; GUD commands must be visible in C buffers visited by GUD |
ee0155df | 46 | |
69c1dd37 | 47 | (defgroup gud nil |
f6aa627c | 48 | "Grand Unified Debugger mode for gdb, sdb, dbx, xdb or perldb under Emacs." |
69c1dd37 RS |
49 | :group 'unix |
50 | :group 'tools) | |
51 | ||
52 | ||
53 | (defcustom gud-key-prefix "\C-x\C-a" | |
54 | "Prefix of all GUD commands valid in C buffers." | |
55 | :type 'string | |
56 | :group 'gud) | |
ee0155df | 57 | |
5b08a462 | 58 | (global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh) |
16776e8d | 59 | (define-key ctl-x-map " " 'gud-break) ;; backward compatibility hack |
ee0155df | 60 | |
ee97eac3 RS |
61 | (defvar gud-marker-filter nil) |
62 | (put 'gud-marker-filter 'permanent-local t) | |
63 | (defvar gud-find-file nil) | |
64 | (put 'gud-find-file 'permanent-local t) | |
65 | ||
ee97eac3 RS |
66 | (defun gud-marker-filter (&rest args) |
67 | (apply gud-marker-filter args)) | |
68 | ||
69 | (defun gud-find-file (file) | |
70 | ;; Don't get confused by double slashes in the name that comes from GDB. | |
71 | (while (string-match "//+" file) | |
72 | (setq file (replace-match "/" t t file))) | |
73 | (funcall gud-find-file file)) | |
9bb4544b RS |
74 | |
75 | ;; Keymap definitions for menu bar entries common to all debuggers and | |
76 | ;; slots for debugger-dependent ones in sensible places. (Defined here | |
77 | ;; before use.) | |
78 | (defvar gud-menu-map (make-sparse-keymap "Gud") nil) | |
79 | (define-key gud-menu-map [refresh] '("Refresh" . gud-refresh)) | |
b3ede706 | 80 | (define-key gud-menu-map [remove] '("Remove Breakpoint" . gud-remove)) |
9bb4544b | 81 | (define-key gud-menu-map [tbreak] nil) ; gdb, sdb and xdb |
b3ede706 | 82 | (define-key gud-menu-map [break] '("Set Breakpoint" . gud-break)) |
9bb4544b RS |
83 | (define-key gud-menu-map [up] nil) ; gdb, dbx, and xdb |
84 | (define-key gud-menu-map [down] nil) ; gdb, dbx, and xdb | |
b3ede706 | 85 | (define-key gud-menu-map [print] '("Print Expression" . gud-print)) |
9bb4544b | 86 | (define-key gud-menu-map [finish] nil) ; gdb or xdb |
b3ede706 KH |
87 | (define-key gud-menu-map [stepi] '("Step Instruction" . gud-stepi)) |
88 | (define-key gud-menu-map [step] '("Step Line" . gud-step)) | |
89 | (define-key gud-menu-map [next] '("Next Line" . gud-next)) | |
9bb4544b | 90 | (define-key gud-menu-map [cont] '("Continue" . gud-cont)) |
575661b1 | 91 | \f |
ee0155df ER |
92 | ;; ====================================================================== |
93 | ;; command definition | |
13b80a60 ER |
94 | |
95 | ;; This macro is used below to define some basic debugger interface commands. | |
f961a17c | 96 | ;; Of course you may use `gud-def' with any other debugger command, including |
6bde8427 JB |
97 | ;; user defined ones. |
98 | ||
99 | ;; A macro call like (gud-def FUNC NAME KEY DOC) expands to a form | |
100 | ;; which defines FUNC to send the command NAME to the debugger, gives | |
ee0155df | 101 | ;; it the docstring DOC, and binds that function to KEY in the GUD |
5b08a462 ER |
102 | ;; major mode. The function is also bound in the global keymap with the |
103 | ;; GUD prefix. | |
ee0155df ER |
104 | |
105 | (defmacro gud-def (func cmd key &optional doc) | |
106 | "Define FUNC to be a command sending STR and bound to KEY, with | |
107 | optional doc string DOC. Certain %-escapes in the string arguments | |
108 | are interpreted specially if present. These are: | |
109 | ||
7f359a21 RS |
110 | %f name (without directory) of current source file. |
111 | %d directory of current source file. | |
ee0155df ER |
112 | %l number of current source line |
113 | %e text of the C lvalue or function-call expression surrounding point. | |
114 | %a text of the hexadecimal address surrounding point | |
115 | %p prefix argument to the command (if any) as a number | |
116 | ||
5b08a462 ER |
117 | The `current' source file is the file of the current buffer (if |
118 | we're in a C file) or the source file current at the last break or | |
119 | step (if we're in the GUD buffer). | |
120 | The `current' line is that of the current buffer (if we're in a | |
121 | source file) or the source line number at the last break or step (if | |
122 | we're in the GUD buffer)." | |
ee0155df ER |
123 | (list 'progn |
124 | (list 'defun func '(arg) | |
125 | (or doc "") | |
126 | '(interactive "p") | |
127 | (list 'gud-call cmd 'arg)) | |
128 | (if key | |
dd8e46c7 RS |
129 | (list 'define-key |
130 | '(current-local-map) | |
131 | (concat "\C-c" key) | |
132 | (list 'quote func))) | |
133 | (if key | |
134 | (list 'global-set-key | |
2352cbea | 135 | (list 'concat 'gud-key-prefix key) |
dd8e46c7 | 136 | (list 'quote func))))) |
13b80a60 | 137 | |
d840a865 JB |
138 | ;; Where gud-display-frame should put the debugging arrow. This is |
139 | ;; set by the marker-filter, which scans the debugger's output for | |
ee0155df | 140 | ;; indications of the current program counter. |
d840a865 JB |
141 | (defvar gud-last-frame nil) |
142 | ||
32ab4c10 JB |
143 | ;; Used by gud-refresh, which should cause gud-display-frame to redisplay |
144 | ;; the last frame, even if it's been called before and gud-last-frame has | |
145 | ;; been set to nil. | |
7447c37a | 146 | (defvar gud-last-last-frame nil) |
32ab4c10 | 147 | |
ee0155df ER |
148 | ;; All debugger-specific information is collected here. |
149 | ;; Here's how it works, in case you ever need to add a debugger to the mode. | |
13b80a60 ER |
150 | ;; |
151 | ;; Each entry must define the following at startup: | |
152 | ;; | |
153 | ;;<name> | |
154 | ;; comint-prompt-regexp | |
a223b10d | 155 | ;; gud-<name>-massage-args |
13b80a60 | 156 | ;; gud-<name>-marker-filter |
ee0155df | 157 | ;; gud-<name>-find-file |
13b80a60 | 158 | ;; |
a223b10d RM |
159 | ;; The job of the massage-args method is to modify the given list of |
160 | ;; debugger arguments before running the debugger. | |
10a4c11f JB |
161 | ;; |
162 | ;; The job of the marker-filter method is to detect file/line markers in | |
163 | ;; strings and set the global gud-last-frame to indicate what display | |
164 | ;; action (if any) should be triggered by the marker. Note that only | |
eb8c3be9 | 165 | ;; whatever the method *returns* is displayed in the buffer; thus, you |
10a4c11f JB |
166 | ;; can filter the debugger's output, interpreting some and passing on |
167 | ;; the rest. | |
168 | ;; | |
ee0155df | 169 | ;; The job of the find-file method is to visit and return the buffer indicated |
10a4c11f | 170 | ;; by the car of gud-tag-frame. This may be a file name, a tag name, or |
2291bfaa | 171 | ;; something else. It would be good if it also copied the Gud menubar entry. |
575661b1 | 172 | \f |
13b80a60 ER |
173 | ;; ====================================================================== |
174 | ;; gdb functions | |
175 | ||
f6376199 JB |
176 | ;;; History of argument lists passed to gdb. |
177 | (defvar gud-gdb-history nil) | |
178 | ||
a223b10d | 179 | (defun gud-gdb-massage-args (file args) |
dfbd82a6 | 180 | (cons "-fullname" args)) |
13b80a60 | 181 | |
dfb7d195 | 182 | (defvar gud-gdb-marker-regexp |
1ac95fab RS |
183 | ;; This used to use path-separator instead of ":"; |
184 | ;; however, we found that on both Windows 32 and MSDOS | |
185 | ;; a colon is correct here. | |
15cf3ecc | 186 | (concat "\032\032\\(.:?[^" ":" "\n]*\\)" ":" |
1ac95fab | 187 | "\\([0-9]*\\)" ":" ".*\n")) |
dfb7d195 | 188 | |
768c29d0 JB |
189 | ;; There's no guarantee that Emacs will hand the filter the entire |
190 | ;; marker at once; it could be broken up across several strings. We | |
191 | ;; might even receive a big chunk with several markers in it. If we | |
192 | ;; receive a chunk of text which looks like it might contain the | |
193 | ;; beginning of a marker, we save it here between calls to the | |
194 | ;; filter. | |
f266485d | 195 | (defvar gud-marker-acc "") |
0d29cfe9 | 196 | (make-variable-buffer-local 'gud-marker-acc) |
768c29d0 | 197 | |
ee0155df | 198 | (defun gud-gdb-marker-filter (string) |
bed6a98d RS |
199 | (setq gud-marker-acc (concat gud-marker-acc string)) |
200 | (let ((output "")) | |
201 | ||
202 | ;; Process all the complete markers in this chunk. | |
dfb7d195 | 203 | (while (string-match gud-gdb-marker-regexp gud-marker-acc) |
bed6a98d RS |
204 | (setq |
205 | ||
206 | ;; Extract the frame position from the marker. | |
207 | gud-last-frame | |
208 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
209 | (string-to-int (substring gud-marker-acc | |
210 | (match-beginning 2) | |
211 | (match-end 2)))) | |
212 | ||
213 | ;; Append any text before the marker to the output we're going | |
214 | ;; to return - we don't include the marker in this text. | |
215 | output (concat output | |
216 | (substring gud-marker-acc 0 (match-beginning 0))) | |
217 | ||
218 | ;; Set the accumulator to the remaining text. | |
219 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
220 | ||
221 | ;; Does the remaining text look like it might end with the | |
222 | ;; beginning of another marker? If it does, then keep it in | |
223 | ;; gud-marker-acc until we receive the rest of it. Since we | |
224 | ;; know the full marker regexp above failed, it's pretty simple to | |
225 | ;; test for marker starts. | |
226 | (if (string-match "\032.*\\'" gud-marker-acc) | |
227 | (progn | |
228 | ;; Everything before the potential marker start can be output. | |
229 | (setq output (concat output (substring gud-marker-acc | |
230 | 0 (match-beginning 0)))) | |
231 | ||
232 | ;; Everything after, we save, to combine with later input. | |
233 | (setq gud-marker-acc | |
234 | (substring gud-marker-acc (match-beginning 0)))) | |
235 | ||
236 | (setq output (concat output gud-marker-acc) | |
237 | gud-marker-acc "")) | |
238 | ||
239 | output)) | |
13b80a60 | 240 | |
ee0155df | 241 | (defun gud-gdb-find-file (f) |
9bb4544b RS |
242 | (save-excursion |
243 | (let ((buf (find-file-noselect f))) | |
244 | (set-buffer buf) | |
07fc7c8a | 245 | (gud-make-debug-menu) |
9bb4544b | 246 | (local-set-key [menu-bar debug tbreak] |
b3ede706 KH |
247 | '("Temporary Breakpoint" . gud-tbreak)) |
248 | (local-set-key [menu-bar debug finish] '("Finish Function" . gud-finish)) | |
249 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
250 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
9bb4544b | 251 | buf))) |
13b80a60 | 252 | |
e886137a KH |
253 | (defvar gdb-minibuffer-local-map nil |
254 | "Keymap for minibuffer prompting of gdb startup command.") | |
255 | (if gdb-minibuffer-local-map | |
256 | () | |
257 | (setq gdb-minibuffer-local-map (copy-keymap minibuffer-local-map)) | |
258 | (define-key | |
259 | gdb-minibuffer-local-map "\C-i" 'comint-dynamic-complete-filename)) | |
260 | ||
10a4c11f | 261 | ;;;###autoload |
a223b10d | 262 | (defun gdb (command-line) |
13b80a60 ER |
263 | "Run gdb on program FILE in buffer *gud-FILE*. |
264 | The directory containing FILE becomes the initial working directory | |
265 | and source-file directory for your debugger." | |
f6376199 | 266 | (interactive |
f5792262 RS |
267 | (list (read-from-minibuffer "Run gdb (like this): " |
268 | (if (consp gud-gdb-history) | |
269 | (car gud-gdb-history) | |
270 | "gdb ") | |
271 | gdb-minibuffer-local-map nil | |
272 | '(gud-gdb-history . 1)))) | |
ee0155df | 273 | |
ee97eac3 RS |
274 | (gud-common-init command-line 'gud-gdb-massage-args |
275 | 'gud-gdb-marker-filter 'gud-gdb-find-file) | |
5b08a462 | 276 | |
dd8e46c7 | 277 | (gud-def gud-break "break %f:%l" "\C-b" "Set breakpoint at current line.") |
2fb419e1 | 278 | (gud-def gud-tbreak "tbreak %f:%l" "\C-t" "Set temporary breakpoint at current line.") |
23a3aa0a | 279 | (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line") |
dd8e46c7 RS |
280 | (gud-def gud-step "step %p" "\C-s" "Step one source line with display.") |
281 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
282 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
283 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
284 | (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
ee0155df ER |
285 | (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") |
286 | (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
dd8e46c7 | 287 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 288 | |
0e0de659 | 289 | (local-set-key "\C-i" 'gud-gdb-complete-command) |
b3ede706 KH |
290 | (local-set-key [menu-bar debug tbreak] '("Temporary Breakpoint" . gud-tbreak)) |
291 | (local-set-key [menu-bar debug finish] '("Finish Function" . gud-finish)) | |
292 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
293 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
13b80a60 | 294 | (setq comint-prompt-regexp "^(.*gdb[+]?) *") |
f54877b2 | 295 | (setq paragraph-start comint-prompt-regexp) |
13b80a60 ER |
296 | (run-hooks 'gdb-mode-hook) |
297 | ) | |
298 | ||
0e0de659 RS |
299 | ;; One of the nice features of GDB is its impressive support for |
300 | ;; context-sensitive command completion. We preserve that feature | |
301 | ;; in the GUD buffer by using a GDB command designed just for Emacs. | |
302 | ||
303 | ;; The completion process filter indicates when it is finished. | |
304 | (defvar gud-gdb-complete-in-progress) | |
305 | ||
306 | ;; Since output may arrive in fragments we accumulate partials strings here. | |
307 | (defvar gud-gdb-complete-string) | |
308 | ||
309 | ;; We need to know how much of the completion to chop off. | |
310 | (defvar gud-gdb-complete-break) | |
311 | ||
312 | ;; The completion list is constructed by the process filter. | |
313 | (defvar gud-gdb-complete-list) | |
314 | ||
30df2a53 RS |
315 | (defvar gud-comint-buffer nil) |
316 | ||
0e0de659 RS |
317 | (defun gud-gdb-complete-command () |
318 | "Perform completion on the GDB command preceding point. | |
319 | This is implemented using the GDB `complete' command which isn't | |
320 | available with older versions of GDB." | |
321 | (interactive) | |
322 | (let* ((end (point)) | |
323 | (command (save-excursion | |
324 | (beginning-of-line) | |
325 | (and (looking-at comint-prompt-regexp) | |
326 | (goto-char (match-end 0))) | |
327 | (buffer-substring (point) end))) | |
328 | command-word) | |
329 | ;; Find the word break. This match will always succeed. | |
330 | (string-match "\\(\\`\\| \\)\\([^ ]*\\)\\'" command) | |
331 | (setq gud-gdb-complete-break (match-beginning 2) | |
332 | command-word (substring command gud-gdb-complete-break)) | |
ee97eac3 RS |
333 | ;; Temporarily install our filter function. |
334 | (let ((gud-marker-filter 'gud-gdb-complete-filter)) | |
335 | ;; Issue the command to GDB. | |
336 | (gud-basic-call (concat "complete " command)) | |
337 | (setq gud-gdb-complete-in-progress t | |
338 | gud-gdb-complete-string nil | |
339 | gud-gdb-complete-list nil) | |
340 | ;; Slurp the output. | |
341 | (while gud-gdb-complete-in-progress | |
342 | (accept-process-output (get-buffer-process gud-comint-buffer)))) | |
0e0de659 RS |
343 | ;; Protect against old versions of GDB. |
344 | (and gud-gdb-complete-list | |
345 | (string-match "^Undefined command: \"complete\"" | |
346 | (car gud-gdb-complete-list)) | |
347 | (error "This version of GDB doesn't support the `complete' command.")) | |
348 | ;; Sort the list like readline. | |
349 | (setq gud-gdb-complete-list | |
350 | (sort gud-gdb-complete-list (function string-lessp))) | |
351 | ;; Remove duplicates. | |
352 | (let ((first gud-gdb-complete-list) | |
353 | (second (cdr gud-gdb-complete-list))) | |
354 | (while second | |
355 | (if (string-equal (car first) (car second)) | |
356 | (setcdr first (setq second (cdr second))) | |
357 | (setq first second | |
358 | second (cdr second))))) | |
fd63b4f4 KH |
359 | ;; Add a trailing single quote if there is a unique completion |
360 | ;; and it contains an odd number of unquoted single quotes. | |
361 | (and (= (length gud-gdb-complete-list) 1) | |
362 | (let ((str (car gud-gdb-complete-list)) | |
363 | (pos 0) | |
364 | (count 0)) | |
365 | (while (string-match "\\([^'\\]\\|\\\\'\\)*'" str pos) | |
366 | (setq count (1+ count) | |
367 | pos (match-end 0))) | |
368 | (and (= (mod count 2) 1) | |
369 | (setq gud-gdb-complete-list (list (concat str "'")))))) | |
0e0de659 RS |
370 | ;; Let comint handle the rest. |
371 | (comint-dynamic-simple-complete command-word gud-gdb-complete-list))) | |
372 | ||
373 | ;; The completion process filter is installed temporarily to slurp the | |
374 | ;; output of GDB up to the next prompt and build the completion list. | |
375 | (defun gud-gdb-complete-filter (string) | |
376 | (setq string (concat gud-gdb-complete-string string)) | |
377 | (while (string-match "\n" string) | |
378 | (setq gud-gdb-complete-list | |
379 | (cons (substring string gud-gdb-complete-break (match-beginning 0)) | |
380 | gud-gdb-complete-list)) | |
381 | (setq string (substring string (match-end 0)))) | |
382 | (if (string-match comint-prompt-regexp string) | |
383 | (progn | |
384 | (setq gud-gdb-complete-in-progress nil) | |
385 | string) | |
386 | (progn | |
387 | (setq gud-gdb-complete-string string) | |
388 | ""))) | |
389 | ||
575661b1 | 390 | \f |
13b80a60 ER |
391 | ;; ====================================================================== |
392 | ;; sdb functions | |
393 | ||
f6376199 JB |
394 | ;;; History of argument lists passed to sdb. |
395 | (defvar gud-sdb-history nil) | |
396 | ||
ee0155df ER |
397 | (defvar gud-sdb-needs-tags (not (file-exists-p "/var")) |
398 | "If nil, we're on a System V Release 4 and don't need the tags hack.") | |
399 | ||
400 | (defvar gud-sdb-lastfile nil) | |
401 | ||
dfbd82a6 | 402 | (defun gud-sdb-massage-args (file args) args) |
13b80a60 | 403 | |
ee0155df | 404 | (defun gud-sdb-marker-filter (string) |
7f629252 RS |
405 | (setq gud-marker-acc |
406 | (if gud-marker-acc (concat gud-marker-acc string) string)) | |
407 | (let (start) | |
408 | ;; Process all complete markers in this chunk | |
409 | (while | |
410 | (cond | |
411 | ;; System V Release 3.2 uses this format | |
bcdef904 | 412 | ((string-match "\\(^\\|\n\\)\\*?\\(0x\\w* in \\)?\\([^:\n]*\\):\\([0-9]*\\):.*\n" |
7f629252 RS |
413 | gud-marker-acc start) |
414 | (setq gud-last-frame | |
415 | (cons | |
bcdef904 | 416 | (substring gud-marker-acc (match-beginning 3) (match-end 3)) |
7f629252 | 417 | (string-to-int |
bcdef904 | 418 | (substring gud-marker-acc (match-beginning 4) (match-end 4)))))) |
7f629252 RS |
419 | ;; System V Release 4.0 quite often clumps two lines together |
420 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n\\([0-9]+\\):" | |
421 | gud-marker-acc start) | |
422 | (setq gud-sdb-lastfile | |
423 | (substring gud-marker-acc (match-beginning 2) (match-end 2))) | |
424 | (setq gud-last-frame | |
425 | (cons | |
426 | gud-sdb-lastfile | |
427 | (string-to-int | |
428 | (substring gud-marker-acc (match-beginning 3) (match-end 3)))))) | |
429 | ;; System V Release 4.0 | |
430 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n" | |
431 | gud-marker-acc start) | |
432 | (setq gud-sdb-lastfile | |
433 | (substring gud-marker-acc (match-beginning 2) (match-end 2)))) | |
434 | ((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):" | |
435 | gud-marker-acc start)) | |
436 | (setq gud-last-frame | |
437 | (cons | |
438 | gud-sdb-lastfile | |
439 | (string-to-int | |
440 | (substring gud-marker-acc (match-beginning 1) (match-end 1)))))) | |
441 | (t | |
442 | (setq gud-sdb-lastfile nil))) | |
443 | (setq start (match-end 0))) | |
444 | ||
445 | ;; Search for the last incomplete line in this chunk | |
446 | (while (string-match "\n" gud-marker-acc start) | |
447 | (setq start (match-end 0))) | |
448 | ||
449 | ;; If we have an incomplete line, store it in gud-marker-acc. | |
bcdef904 | 450 | (setq gud-marker-acc (substring gud-marker-acc (or start 0)))) |
13b80a60 ER |
451 | string) |
452 | ||
ee0155df | 453 | (defun gud-sdb-find-file (f) |
9bb4544b RS |
454 | (save-excursion |
455 | (let ((buf (if gud-sdb-needs-tags | |
456 | (find-tag-noselect f) | |
457 | (find-file-noselect f)))) | |
458 | (set-buffer buf) | |
07fc7c8a | 459 | (gud-make-debug-menu) |
b3ede706 | 460 | (local-set-key [menu-bar debug tbreak] '("Temporary Breakpoint" . gud-tbreak)) |
9bb4544b | 461 | buf))) |
13b80a60 | 462 | |
10a4c11f | 463 | ;;;###autoload |
a223b10d | 464 | (defun sdb (command-line) |
13b80a60 ER |
465 | "Run sdb on program FILE in buffer *gud-FILE*. |
466 | The directory containing FILE becomes the initial working directory | |
467 | and source-file directory for your debugger." | |
f6376199 | 468 | (interactive |
a223b10d | 469 | (list (read-from-minibuffer "Run sdb (like this): " |
f6376199 JB |
470 | (if (consp gud-sdb-history) |
471 | (car gud-sdb-history) | |
a223b10d | 472 | "sdb ") |
f6376199 JB |
473 | nil nil |
474 | '(gud-sdb-history . 1)))) | |
ee0155df | 475 | (if (and gud-sdb-needs-tags |
e290aebb RS |
476 | (not (and (boundp 'tags-file-name) |
477 | (stringp tags-file-name) | |
478 | (file-exists-p tags-file-name)))) | |
13b80a60 | 479 | (error "The sdb support requires a valid tags table to work.")) |
13b80a60 | 480 | |
ee97eac3 RS |
481 | (gud-common-init command-line 'gud-sdb-massage-args |
482 | 'gud-sdb-marker-filter 'gud-sdb-find-file) | |
5b08a462 | 483 | |
dd8e46c7 RS |
484 | (gud-def gud-break "%l b" "\C-b" "Set breakpoint at current line.") |
485 | (gud-def gud-tbreak "%l c" "\C-t" "Set temporary breakpoint at current line.") | |
486 | (gud-def gud-remove "%l d" "\C-d" "Remove breakpoint at current line") | |
487 | (gud-def gud-step "s %p" "\C-s" "Step one source line with display.") | |
488 | (gud-def gud-stepi "i %p" "\C-i" "Step one instruction with display.") | |
489 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
490 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
491 | (gud-def gud-print "%e/" "\C-p" "Evaluate C expression at point.") | |
13b80a60 | 492 | |
6bde8427 | 493 | (setq comint-prompt-regexp "\\(^\\|\n\\)\\*") |
f54877b2 | 494 | (setq paragraph-start comint-prompt-regexp) |
2291bfaa | 495 | (local-set-key [menu-bar debug tbreak] |
b3ede706 | 496 | '("Temporary Breakpoint" . gud-tbreak)) |
13b80a60 ER |
497 | (run-hooks 'sdb-mode-hook) |
498 | ) | |
575661b1 | 499 | \f |
13b80a60 ER |
500 | ;; ====================================================================== |
501 | ;; dbx functions | |
502 | ||
f6376199 JB |
503 | ;;; History of argument lists passed to dbx. |
504 | (defvar gud-dbx-history nil) | |
505 | ||
69c1dd37 | 506 | (defcustom gud-dbx-directories nil |
3b3703fa RS |
507 | "*A list of directories that dbx should search for source code. |
508 | If nil, only source files in the program directory | |
509 | will be known to dbx. | |
510 | ||
511 | The file names should be absolute, or relative to the directory | |
69c1dd37 RS |
512 | containing the executable being debugged." |
513 | :type '(choice (const :tag "Current Directory" nil) | |
514 | (repeat :value ("") | |
515 | directory)) | |
516 | :group 'gud) | |
3b3703fa RS |
517 | |
518 | (defun gud-dbx-massage-args (file args) | |
519 | (nconc (let ((directories gud-dbx-directories) | |
520 | (result nil)) | |
521 | (while directories | |
522 | (setq result (cons (car directories) (cons "-I" result))) | |
523 | (setq directories (cdr directories))) | |
524 | (nreverse result)) | |
525 | args)) | |
526 | ||
527 | (defun gud-dbx-file-name (f) | |
528 | "Transform a relative file name to an absolute file name, for dbx." | |
529 | (let ((result nil)) | |
530 | (if (file-exists-p f) | |
531 | (setq result (expand-file-name f)) | |
532 | (let ((directories gud-dbx-directories)) | |
533 | (while directories | |
534 | (let ((path (concat (car directories) "/" f))) | |
535 | (if (file-exists-p path) | |
536 | (setq result (expand-file-name path) | |
537 | directories nil))) | |
538 | (setq directories (cdr directories))))) | |
539 | result)) | |
13b80a60 | 540 | |
ee0155df | 541 | (defun gud-dbx-marker-filter (string) |
7f629252 RS |
542 | (setq gud-marker-acc (if gud-marker-acc (concat gud-marker-acc string) string)) |
543 | ||
544 | (let (start) | |
545 | ;; Process all complete markers in this chunk. | |
546 | (while (or (string-match | |
547 | "stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
548 | gud-marker-acc start) | |
549 | (string-match | |
550 | "signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
551 | gud-marker-acc start)) | |
13b80a60 ER |
552 | (setq gud-last-frame |
553 | (cons | |
7f629252 | 554 | (substring gud-marker-acc (match-beginning 2) (match-end 2)) |
13b80a60 | 555 | (string-to-int |
7f629252 RS |
556 | (substring gud-marker-acc (match-beginning 1) (match-end 1)))) |
557 | start (match-end 0))) | |
558 | ||
559 | ;; Search for the last incomplete line in this chunk | |
560 | (while (string-match "\n" gud-marker-acc start) | |
561 | (setq start (match-end 0))) | |
562 | ||
563 | ;; If the incomplete line APPEARS to begin with another marker, keep it | |
564 | ;; in the accumulator. Otherwise, clear the accumulator to avoid an | |
565 | ;; unnecessary concat during the next call. | |
566 | (setq gud-marker-acc | |
567 | (if (string-match "\\(stopped\\|signal\\)" gud-marker-acc start) | |
568 | (substring gud-marker-acc (match-beginning 0)) | |
569 | nil))) | |
13b80a60 ER |
570 | string) |
571 | ||
f266485d RS |
572 | ;; Functions for Mips-style dbx. Given the option `-emacs', documented in |
573 | ;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's. | |
574 | (defvar gud-mips-p | |
575 | (or (string-match "^mips-[^-]*-ultrix" system-configuration) | |
576 | ;; We haven't tested gud on this system: | |
577 | (string-match "^mips-[^-]*-riscos" system-configuration) | |
578 | ;; It's documented on OSF/1.3 | |
9f24ea14 RS |
579 | (string-match "^mips-[^-]*-osf1" system-configuration) |
580 | (string-match "^alpha-[^-]*-osf" system-configuration)) | |
f266485d | 581 | "Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').") |
13eaa026 RS |
582 | |
583 | (defun gud-mipsdbx-massage-args (file args) | |
dfbd82a6 | 584 | (cons "-emacs" args)) |
13eaa026 | 585 | |
f266485d RS |
586 | ;; This is just like the gdb one except for the regexps since we need to cope |
587 | ;; with an optional breakpoint number in [] before the ^Z^Z | |
13eaa026 | 588 | (defun gud-mipsdbx-marker-filter (string) |
bed6a98d RS |
589 | (setq gud-marker-acc (concat gud-marker-acc string)) |
590 | (let ((output "")) | |
591 | ||
592 | ;; Process all the complete markers in this chunk. | |
593 | (while (string-match | |
594 | ;; This is like th gdb marker but with an optional | |
595 | ;; leading break point number like `[1] ' | |
596 | "[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
597 | gud-marker-acc) | |
598 | (setq | |
599 | ||
600 | ;; Extract the frame position from the marker. | |
601 | gud-last-frame | |
602 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
603 | (string-to-int (substring gud-marker-acc | |
604 | (match-beginning 2) | |
605 | (match-end 2)))) | |
606 | ||
607 | ;; Append any text before the marker to the output we're going | |
608 | ;; to return - we don't include the marker in this text. | |
609 | output (concat output | |
610 | (substring gud-marker-acc 0 (match-beginning 0))) | |
611 | ||
612 | ;; Set the accumulator to the remaining text. | |
613 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
614 | ||
615 | ;; Does the remaining text look like it might end with the | |
616 | ;; beginning of another marker? If it does, then keep it in | |
617 | ;; gud-marker-acc until we receive the rest of it. Since we | |
618 | ;; know the full marker regexp above failed, it's pretty simple to | |
619 | ;; test for marker starts. | |
620 | (if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc) | |
621 | (progn | |
622 | ;; Everything before the potential marker start can be output. | |
623 | (setq output (concat output (substring gud-marker-acc | |
624 | 0 (match-beginning 0)))) | |
625 | ||
626 | ;; Everything after, we save, to combine with later input. | |
627 | (setq gud-marker-acc | |
628 | (substring gud-marker-acc (match-beginning 0)))) | |
629 | ||
630 | (setq output (concat output gud-marker-acc) | |
631 | gud-marker-acc "")) | |
632 | ||
633 | output)) | |
13eaa026 | 634 | |
f266485d RS |
635 | ;; The dbx in IRIX is a pain. It doesn't print the file name when |
636 | ;; stopping at a breakpoint (but you do get it from the `up' and | |
637 | ;; `down' commands...). The only way to extract the information seems | |
638 | ;; to be with a `file' command, although the current line number is | |
639 | ;; available in $curline. Thus we have to look for output which | |
640 | ;; appears to indicate a breakpoint. Then we prod the dbx sub-process | |
641 | ;; to output the information we want with a combination of the | |
642 | ;; `printf' and `file' commands as a pseudo marker which we can | |
643 | ;; recognise next time through the marker-filter. This would be like | |
644 | ;; the gdb marker but you can't get the file name without a newline... | |
645 | ;; Note that gud-remove won't work since Irix dbx expects a breakpoint | |
646 | ;; number rather than a line number etc. Maybe this could be made to | |
647 | ;; work by listing all the breakpoints and picking the one(s) with the | |
648 | ;; correct line number, but life's too short. | |
649 | ;; d.love@dl.ac.uk (Dave Love) can be blamed for this | |
650 | ||
ac8da950 KH |
651 | (defvar gud-irix-p |
652 | (and (string-match "^mips-[^-]*-irix" system-configuration) | |
653 | (not (string-match "irix[6-9]\\.[1-9]" system-configuration))) | |
f266485d | 654 | "Non-nil to assume the interface appropriate for IRIX dbx. |
ac8da950 KH |
655 | This works in IRIX 4, 5 and 6, but `gud-dbx-use-stopformat-p' provides |
656 | a better solution in 6.1 upwards.") | |
657 | (defvar gud-dbx-use-stopformat-p | |
658 | (string-match "irix[6-9]\\.[1-9]" system-configuration) | |
659 | "Non-nil to use the dbx feature present at least from Irix 6.1 | |
660 | whereby $stopformat=1 produces an output format compatiable with | |
661 | `gud-dbx-marker-filter'.") | |
2fb419e1 RS |
662 | ;; [Irix dbx seems to be a moving target. The dbx output changed |
663 | ;; subtly sometime between OS v4.0.5 and v5.2 so that, for instance, | |
664 | ;; the output from `up' is no longer spotted by gud (and it's probably | |
665 | ;; not distinctive enough to try to match it -- use C-<, C-> | |
666 | ;; exclusively) . For 5.3 and 6.0, the $curline variable changed to | |
667 | ;; `long long'(why?!), so the printf stuff needed changing. The line | |
ac8da950 KH |
668 | ;; number was cast to `long' as a compromise between the new `long |
669 | ;; long' and the original `int'. This is reported not to work in 6.2, | |
670 | ;; so it's changed back to int -- don't make your sources too long. | |
671 | ;; From Irix6.1 (but not 6.0?) dbx supports an undocumented feature | |
672 | ;; whereby `set $stopformat=1' reportedly produces output compatible | |
673 | ;; with `gud-dbx-marker-filter', which we prefer. | |
674 | ||
675 | ;; The process filter is also somewhat | |
2fb419e1 RS |
676 | ;; unreliable, sometimes not spotting the markers; I don't know |
677 | ;; whether there's anything that can be done about that. It would be | |
678 | ;; much better if SGI could be persuaded to (re?)instate the MIPS | |
679 | ;; -emacs flag for gdb-like output (which ought to be possible as most | |
680 | ;; of the communication I've had over it has been from sgi.com).] | |
f266485d RS |
681 | |
682 | ;; this filter is influenced by the xdb one rather than the gdb one | |
683 | (defun gud-irixdbx-marker-filter (string) | |
bed6a98d RS |
684 | (let (result (case-fold-search nil)) |
685 | (if (or (string-match comint-prompt-regexp string) | |
686 | (string-match ".*\012" string)) | |
687 | (setq result (concat gud-marker-acc string) | |
688 | gud-marker-acc "") | |
689 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
690 | (if result | |
691 | (cond | |
692 | ;; look for breakpoint or signal indication e.g.: | |
693 | ;; [2] Process 1267 (pplot) stopped at [params:338 ,0x400ec0] | |
694 | ;; Process 1281 (pplot) stopped at [params:339 ,0x400ec8] | |
695 | ;; Process 1270 (pplot) Floating point exception [._read._read:16 ,0x452188] | |
696 | ((string-match | |
697 | "^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n" | |
698 | result) | |
699 | ;; prod dbx into printing out the line number and file | |
700 | ;; name in a form we can grok as below | |
701 | (process-send-string (get-buffer-process gud-comint-buffer) | |
ac8da950 | 702 | "printf \"\032\032%1d:\",(int)$curline;file\n")) |
bed6a98d RS |
703 | ;; look for result of, say, "up" e.g.: |
704 | ;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c] | |
705 | ;; (this will also catch one of the lines printed by "where") | |
706 | ((string-match | |
707 | "^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n" | |
708 | result) | |
709 | (let ((file (substring result (match-beginning 1) | |
710 | (match-end 1)))) | |
711 | (if (file-exists-p file) | |
712 | (setq gud-last-frame | |
713 | (cons | |
714 | (substring | |
715 | result (match-beginning 1) (match-end 1)) | |
716 | (string-to-int | |
717 | (substring | |
718 | result (match-beginning 2) (match-end 2))))))) | |
719 | result) | |
720 | ((string-match ; kluged-up marker as above | |
721 | "\032\032\\([0-9]*\\):\\(.*\\)\n" result) | |
3b3703fa RS |
722 | (let ((file (gud-dbx-file-name |
723 | (substring result (match-beginning 2) (match-end 2))))) | |
724 | (if (and file (file-exists-p file)) | |
bed6a98d RS |
725 | (setq gud-last-frame |
726 | (cons | |
727 | file | |
728 | (string-to-int | |
729 | (substring | |
730 | result (match-beginning 1) (match-end 1))))))) | |
731 | (setq result (substring result 0 (match-beginning 0)))))) | |
732 | (or result ""))) | |
f266485d | 733 | |
34c8b673 RS |
734 | (defvar gud-dgux-p (string-match "-dgux" system-configuration) |
735 | "Non-nil means to assume the interface approriate for DG/UX dbx. | |
736 | This was tested using R4.11.") | |
737 | ||
738 | ;; There are a couple of differences between DG's dbx output and normal | |
739 | ;; dbx output which make it nontrivial to integrate this into the | |
740 | ;; standard dbx-marker-filter (mainly, there are a different number of | |
741 | ;; backreferences). The markers look like: | |
742 | ;; | |
743 | ;; (0) Stopped at line 10, routine main(argc=1, argv=0xeffff0e0), file t.c | |
744 | ;; | |
745 | ;; from breakpoints (the `(0)' there isn't constant, it's the breakpoint | |
746 | ;; number), and | |
747 | ;; | |
748 | ;; Stopped at line 13, routine main(argc=1, argv=0xeffff0e0), file t.c | |
749 | ;; | |
750 | ;; from signals and | |
751 | ;; | |
752 | ;; Frame 21, line 974, routine command_loop(), file keyboard.c | |
753 | ;; | |
754 | ;; from up/down/where. | |
755 | ||
756 | (defun gud-dguxdbx-marker-filter (string) | |
757 | (setq gud-marker-acc (if gud-marker-acc | |
758 | (concat gud-marker-acc string) | |
759 | string)) | |
760 | (let ((re (concat "^\\(\\(([0-9]+) \\)?Stopped at\\|Frame [0-9]+,\\)" | |
761 | " line \\([0-9]+\\), routine .*, file \\([^ \t\n]+\\)")) | |
762 | start) | |
763 | ;; Process all complete markers in this chunk. | |
764 | (while (string-match re gud-marker-acc start) | |
765 | (setq gud-last-frame | |
766 | (cons | |
767 | (substring gud-marker-acc (match-beginning 4) (match-end 4)) | |
768 | (string-to-int (substring gud-marker-acc | |
769 | (match-beginning 3) (match-end 3)))) | |
770 | start (match-end 0))) | |
771 | ||
772 | ;; Search for the last incomplete line in this chunk | |
773 | (while (string-match "\n" gud-marker-acc start) | |
774 | (setq start (match-end 0))) | |
775 | ||
776 | ;; If the incomplete line APPEARS to begin with another marker, keep it | |
777 | ;; in the accumulator. Otherwise, clear the accumulator to avoid an | |
778 | ;; unnecessary concat during the next call. | |
779 | (setq gud-marker-acc | |
780 | (if (string-match "Stopped\\|Frame" gud-marker-acc start) | |
781 | (substring gud-marker-acc (match-beginning 0)) | |
782 | nil))) | |
783 | string) | |
784 | ||
ee0155df | 785 | (defun gud-dbx-find-file (f) |
9bb4544b | 786 | (save-excursion |
3b3703fa RS |
787 | (let ((realf (gud-dbx-file-name f))) |
788 | (if realf | |
8744b08b | 789 | (let ((buf (find-file-noselect realf))) |
3b3703fa RS |
790 | (set-buffer buf) |
791 | (gud-make-debug-menu) | |
792 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
793 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
794 | buf) | |
795 | nil)))) | |
13b80a60 | 796 | |
10a4c11f | 797 | ;;;###autoload |
a223b10d | 798 | (defun dbx (command-line) |
13b80a60 ER |
799 | "Run dbx on program FILE in buffer *gud-FILE*. |
800 | The directory containing FILE becomes the initial working directory | |
801 | and source-file directory for your debugger." | |
f6376199 | 802 | (interactive |
a223b10d | 803 | (list (read-from-minibuffer "Run dbx (like this): " |
f6376199 JB |
804 | (if (consp gud-dbx-history) |
805 | (car gud-dbx-history) | |
a223b10d | 806 | "dbx ") |
f6376199 JB |
807 | nil nil |
808 | '(gud-dbx-history . 1)))) | |
13eaa026 | 809 | |
ee97eac3 RS |
810 | (cond |
811 | (gud-mips-p | |
812 | (gud-common-init command-line 'gud-mipsdbx-massage-args | |
813 | 'gud-mipsdbx-marker-filter 'gud-dbx-find-file)) | |
814 | (gud-irix-p | |
815 | (gud-common-init command-line 'gud-dbx-massage-args | |
816 | 'gud-irixdbx-marker-filter 'gud-dbx-find-file)) | |
34c8b673 RS |
817 | (gud-dgux-p |
818 | (gud-common-init command-line 'gud-dbx-massage-args | |
819 | 'gud-dguxdbx-marker-filter 'gud-dbx-find-file)) | |
ee97eac3 RS |
820 | (t |
821 | (gud-common-init command-line 'gud-dbx-massage-args | |
822 | 'gud-dbx-marker-filter 'gud-dbx-find-file))) | |
5b08a462 | 823 | |
13eaa026 | 824 | (cond |
f266485d | 825 | (gud-mips-p |
2fb419e1 RS |
826 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
827 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
13eaa026 RS |
828 | (gud-def gud-break "stop at \"%f\":%l" |
829 | "\C-b" "Set breakpoint at current line.") | |
830 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.")) | |
f266485d RS |
831 | (gud-irix-p |
832 | (gud-def gud-break "stop at \"%d%f\":%l" | |
833 | "\C-b" "Set breakpoint at current line.") | |
834 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.") | |
ac8da950 | 835 | (gud-def gud-up "up %p; printf \"\032\032%1d:\",(int)$curline;file\n" |
2fb419e1 | 836 | "<" "Up (numeric arg) stack frames.") |
ac8da950 | 837 | (gud-def gud-down "down %p; printf \"\032\032%1d:\",(int)$curline;file\n" |
2fb419e1 | 838 | ">" "Down (numeric arg) stack frames.") |
f266485d RS |
839 | ;; Make dbx give out the source location info that we need. |
840 | (process-send-string (get-buffer-process gud-comint-buffer) | |
ac8da950 KH |
841 | "printf \"\032\032%1d:\",(int)$curline;file\n")) |
842 | (gud-dbx-use-stopformat-p | |
843 | (process-send-string (get-buffer-process gud-comint-buffer) | |
844 | "set $stopformat=1\n")) | |
13eaa026 | 845 | (t |
2fb419e1 RS |
846 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
847 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
13eaa026 RS |
848 | (gud-def gud-break "file \"%d%f\"\nstop at %l" |
849 | "\C-b" "Set breakpoint at current line."))) | |
850 | ||
dd8e46c7 RS |
851 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") |
852 | (gud-def gud-step "step %p" "\C-s" "Step one line with display.") | |
853 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
854 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
855 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
dd8e46c7 | 856 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 857 | |
13eaa026 | 858 | (setq comint-prompt-regexp "^[^)\n]*dbx) *") |
f54877b2 | 859 | (setq paragraph-start comint-prompt-regexp) |
b3ede706 KH |
860 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) |
861 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
13b80a60 ER |
862 | (run-hooks 'dbx-mode-hook) |
863 | ) | |
575661b1 | 864 | \f |
6496f3d2 RS |
865 | ;; ====================================================================== |
866 | ;; xdb (HP PARISC debugger) functions | |
867 | ||
f6376199 JB |
868 | ;;; History of argument lists passed to xdb. |
869 | (defvar gud-xdb-history nil) | |
870 | ||
69c1dd37 | 871 | (defcustom gud-xdb-directories nil |
fce222c7 RS |
872 | "*A list of directories that xdb should search for source code. |
873 | If nil, only source files in the program directory | |
874 | will be known to xdb. | |
875 | ||
876 | The file names should be absolute, or relative to the directory | |
69c1dd37 RS |
877 | containing the executable being debugged." |
878 | :type '(choice (const :tag "Current Directory" nil) | |
879 | (repeat :value ("") | |
880 | directory)) | |
881 | :group 'gud) | |
fce222c7 | 882 | |
a223b10d RM |
883 | (defun gud-xdb-massage-args (file args) |
884 | (nconc (let ((directories gud-xdb-directories) | |
885 | (result nil)) | |
886 | (while directories | |
887 | (setq result (cons (car directories) (cons "-d" result))) | |
888 | (setq directories (cdr directories))) | |
dfbd82a6 | 889 | (nreverse result)) |
a223b10d | 890 | args)) |
6496f3d2 RS |
891 | |
892 | (defun gud-xdb-file-name (f) | |
893 | "Transform a relative pathname to a full pathname in xdb mode" | |
894 | (let ((result nil)) | |
895 | (if (file-exists-p f) | |
896 | (setq result (expand-file-name f)) | |
fce222c7 RS |
897 | (let ((directories gud-xdb-directories)) |
898 | (while directories | |
899 | (let ((path (concat (car directories) "/" f))) | |
6496f3d2 RS |
900 | (if (file-exists-p path) |
901 | (setq result (expand-file-name path) | |
fce222c7 RS |
902 | directories nil))) |
903 | (setq directories (cdr directories))))) | |
6496f3d2 RS |
904 | result)) |
905 | ||
906 | ;; xdb does not print the lines all at once, so we have to accumulate them | |
6496f3d2 RS |
907 | (defun gud-xdb-marker-filter (string) |
908 | (let (result) | |
909 | (if (or (string-match comint-prompt-regexp string) | |
910 | (string-match ".*\012" string)) | |
f266485d RS |
911 | (setq result (concat gud-marker-acc string) |
912 | gud-marker-acc "") | |
913 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
6496f3d2 | 914 | (if result |
1dc9668c RS |
915 | (if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\)[: ]" |
916 | result) | |
6496f3d2 RS |
917 | (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):" |
918 | result)) | |
1dc9668c | 919 | (let ((line (string-to-int |
6496f3d2 RS |
920 | (substring result (match-beginning 2) (match-end 2)))) |
921 | (file (gud-xdb-file-name | |
922 | (substring result (match-beginning 1) (match-end 1))))) | |
923 | (if file | |
924 | (setq gud-last-frame (cons file line)))))) | |
925 | (or result ""))) | |
926 | ||
6496f3d2 | 927 | (defun gud-xdb-find-file (f) |
9bb4544b RS |
928 | (save-excursion |
929 | (let ((realf (gud-xdb-file-name f))) | |
930 | (if realf | |
931 | (let ((buf (find-file-noselect realf))) | |
932 | (set-buffer buf) | |
07fc7c8a | 933 | (gud-make-debug-menu) |
9bb4544b | 934 | (local-set-key [menu-bar debug tbreak] |
b3ede706 | 935 | '("Temporary Breakpoint" . gud-tbreak)) |
9bb4544b | 936 | (local-set-key [menu-bar debug finish] |
b3ede706 KH |
937 | '("Finish Function" . gud-finish)) |
938 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
939 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
9bb4544b RS |
940 | buf) |
941 | nil)))) | |
6496f3d2 RS |
942 | |
943 | ;;;###autoload | |
a223b10d | 944 | (defun xdb (command-line) |
6496f3d2 RS |
945 | "Run xdb on program FILE in buffer *gud-FILE*. |
946 | The directory containing FILE becomes the initial working directory | |
947 | and source-file directory for your debugger. | |
948 | ||
fce222c7 | 949 | You can set the variable 'gud-xdb-directories' to a list of program source |
6496f3d2 | 950 | directories if your program contains sources from more than one directory." |
f6376199 | 951 | (interactive |
a223b10d | 952 | (list (read-from-minibuffer "Run xdb (like this): " |
f6376199 JB |
953 | (if (consp gud-xdb-history) |
954 | (car gud-xdb-history) | |
a223b10d | 955 | "xdb ") |
f6376199 JB |
956 | nil nil |
957 | '(gud-xdb-history . 1)))) | |
6496f3d2 | 958 | |
ee97eac3 RS |
959 | (gud-common-init command-line 'gud-xdb-massage-args |
960 | 'gud-xdb-marker-filter 'gud-xdb-find-file) | |
6496f3d2 RS |
961 | |
962 | (gud-def gud-break "b %f:%l" "\C-b" "Set breakpoint at current line.") | |
963 | (gud-def gud-tbreak "b %f:%l\\t" "\C-t" | |
964 | "Set temporary breakpoint at current line.") | |
965 | (gud-def gud-remove "db" "\C-d" "Remove breakpoint at current line") | |
966 | (gud-def gud-step "s %p" "\C-s" "Step one line with display.") | |
967 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
968 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
969 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") | |
970 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
971 | (gud-def gud-finish "bu\\t" "\C-f" "Finish executing current function.") | |
972 | (gud-def gud-print "p %e" "\C-p" "Evaluate C expression at point.") | |
973 | ||
974 | (setq comint-prompt-regexp "^>") | |
f54877b2 | 975 | (setq paragraph-start comint-prompt-regexp) |
b3ede706 KH |
976 | (local-set-key [menu-bar debug tbreak] '("Temporary Breakpoint" . gud-tbreak)) |
977 | (local-set-key [menu-bar debug finish] '("Finish Function" . gud-finish)) | |
978 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
979 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
6496f3d2 | 980 | (run-hooks 'xdb-mode-hook)) |
575661b1 RS |
981 | \f |
982 | ;; ====================================================================== | |
983 | ;; perldb functions | |
984 | ||
985 | ;;; History of argument lists passed to perldb. | |
986 | (defvar gud-perldb-history nil) | |
987 | ||
988 | (defun gud-perldb-massage-args (file args) | |
aa9063cb RS |
989 | (cond ((equal (car args) "-e") |
990 | (cons "-d" | |
991 | (cons (car args) | |
992 | (cons (nth 1 args) | |
993 | (cons "--" (cons "-emacs" (cdr (cdr args)))))))) | |
994 | (t | |
995 | (cons "-d" (cons (car args) (cons "-emacs" (cdr args))))))) | |
575661b1 RS |
996 | |
997 | ;; There's no guarantee that Emacs will hand the filter the entire | |
998 | ;; marker at once; it could be broken up across several strings. We | |
999 | ;; might even receive a big chunk with several markers in it. If we | |
1000 | ;; receive a chunk of text which looks like it might contain the | |
1001 | ;; beginning of a marker, we save it here between calls to the | |
1002 | ;; filter. | |
1003 | (defvar gud-perldb-marker-acc "") | |
1004 | ||
1005 | (defun gud-perldb-marker-filter (string) | |
bed6a98d RS |
1006 | (setq gud-marker-acc (concat gud-marker-acc string)) |
1007 | (let ((output "")) | |
1008 | ||
1009 | ;; Process all the complete markers in this chunk. | |
aa9063cb | 1010 | (while (string-match "\032\032\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\):.*\n" |
bed6a98d RS |
1011 | gud-marker-acc) |
1012 | (setq | |
1013 | ||
1014 | ;; Extract the frame position from the marker. | |
1015 | gud-last-frame | |
1016 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
1017 | (string-to-int (substring gud-marker-acc | |
aa9063cb RS |
1018 | (match-beginning 3) |
1019 | (match-end 3)))) | |
bed6a98d RS |
1020 | |
1021 | ;; Append any text before the marker to the output we're going | |
1022 | ;; to return - we don't include the marker in this text. | |
1023 | output (concat output | |
1024 | (substring gud-marker-acc 0 (match-beginning 0))) | |
1025 | ||
1026 | ;; Set the accumulator to the remaining text. | |
1027 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
1028 | ||
1029 | ;; Does the remaining text look like it might end with the | |
1030 | ;; beginning of another marker? If it does, then keep it in | |
1031 | ;; gud-marker-acc until we receive the rest of it. Since we | |
1032 | ;; know the full marker regexp above failed, it's pretty simple to | |
1033 | ;; test for marker starts. | |
1034 | (if (string-match "\032.*\\'" gud-marker-acc) | |
1035 | (progn | |
1036 | ;; Everything before the potential marker start can be output. | |
1037 | (setq output (concat output (substring gud-marker-acc | |
1038 | 0 (match-beginning 0)))) | |
1039 | ||
1040 | ;; Everything after, we save, to combine with later input. | |
1041 | (setq gud-marker-acc | |
1042 | (substring gud-marker-acc (match-beginning 0)))) | |
1043 | ||
1044 | (setq output (concat output gud-marker-acc) | |
1045 | gud-marker-acc "")) | |
1046 | ||
1047 | output)) | |
575661b1 RS |
1048 | |
1049 | (defun gud-perldb-find-file (f) | |
9bb4544b RS |
1050 | (save-excursion |
1051 | (let ((buf (find-file-noselect f))) | |
1052 | (set-buffer buf) | |
39cf49be | 1053 | (gud-make-debug-menu) |
9bb4544b | 1054 | buf))) |
575661b1 | 1055 | |
69c1dd37 RS |
1056 | (defcustom perldb-command-name "perl" |
1057 | "File name for executing Perl." | |
1058 | :type 'string | |
1059 | :group 'gud) | |
9ab5d005 | 1060 | |
575661b1 RS |
1061 | ;;;###autoload |
1062 | (defun perldb (command-line) | |
1063 | "Run perldb on program FILE in buffer *gud-FILE*. | |
1064 | The directory containing FILE becomes the initial working directory | |
1065 | and source-file directory for your debugger." | |
1066 | (interactive | |
1067 | (list (read-from-minibuffer "Run perldb (like this): " | |
1068 | (if (consp gud-perldb-history) | |
1069 | (car gud-perldb-history) | |
5dd9db3b RS |
1070 | (concat perldb-command-name |
1071 | " " | |
1072 | (or (buffer-file-name) | |
d6efd584 RS |
1073 | "-e 0") |
1074 | " ")) | |
575661b1 RS |
1075 | nil nil |
1076 | '(gud-perldb-history . 1)))) | |
575661b1 | 1077 | |
ee97eac3 RS |
1078 | (gud-common-init command-line 'gud-perldb-massage-args |
1079 | 'gud-perldb-marker-filter 'gud-perldb-find-file) | |
575661b1 | 1080 | |
2c32e5c6 RS |
1081 | (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.") |
1082 | (gud-def gud-remove "d %l" "\C-d" "Remove breakpoint at current line") | |
1083 | (gud-def gud-step "s" "\C-s" "Step one source line with display.") | |
1084 | (gud-def gud-next "n" "\C-n" "Step one line (skip functions).") | |
1085 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
1086 | ; (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
1087 | ; (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") | |
1088 | ; (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
1089 | (gud-def gud-print "%e" "\C-p" "Evaluate perl expression at point.") | |
1090 | ||
aa9063cb | 1091 | (setq comint-prompt-regexp "^ DB<+[0-9]+>+ ") |
f54877b2 | 1092 | (setq paragraph-start comint-prompt-regexp) |
2c32e5c6 | 1093 | (run-hooks 'perldb-mode-hook) |
575661b1 | 1094 | ) |
6496f3d2 | 1095 | |
13b80a60 ER |
1096 | ;; |
1097 | ;; End of debugger-specific information | |
10a4c11f | 1098 | ;; |
13b80a60 | 1099 | |
575661b1 | 1100 | \f |
53eb3a97 JB |
1101 | ;;; When we send a command to the debugger via gud-call, it's annoying |
1102 | ;;; to see the command and the new prompt inserted into the debugger's | |
1103 | ;;; buffer; we have other ways of knowing the command has completed. | |
1104 | ;;; | |
1105 | ;;; If the buffer looks like this: | |
1106 | ;;; -------------------- | |
1107 | ;;; (gdb) set args foo bar | |
1108 | ;;; (gdb) -!- | |
1109 | ;;; -------------------- | |
1110 | ;;; (the -!- marks the location of point), and we type `C-x SPC' in a | |
1111 | ;;; source file to set a breakpoint, we want the buffer to end up like | |
1112 | ;;; this: | |
1113 | ;;; -------------------- | |
1114 | ;;; (gdb) set args foo bar | |
1115 | ;;; Breakpoint 1 at 0x92: file make-docfile.c, line 49. | |
1116 | ;;; (gdb) -!- | |
1117 | ;;; -------------------- | |
1118 | ;;; Essentially, the old prompt is deleted, and the command's output | |
1119 | ;;; and the new prompt take its place. | |
1120 | ;;; | |
1121 | ;;; Not echoing the command is easy enough; you send it directly using | |
1122 | ;;; process-send-string, and it never enters the buffer. However, | |
1123 | ;;; getting rid of the old prompt is trickier; you don't want to do it | |
1124 | ;;; when you send the command, since that will result in an annoying | |
1125 | ;;; flicker as the prompt is deleted, redisplay occurs while Emacs | |
1126 | ;;; waits for a response from the debugger, and the new prompt is | |
1127 | ;;; inserted. Instead, we'll wait until we actually get some output | |
1128 | ;;; from the subprocess before we delete the prompt. If the command | |
1129 | ;;; produced no output other than a new prompt, that prompt will most | |
1130 | ;;; likely be in the first chunk of output received, so we will delete | |
1131 | ;;; the prompt and then replace it with an identical one. If the | |
1132 | ;;; command produces output, the prompt is moving anyway, so the | |
1133 | ;;; flicker won't be annoying. | |
1134 | ;;; | |
1135 | ;;; So - when we want to delete the prompt upon receipt of the next | |
1136 | ;;; chunk of debugger output, we position gud-delete-prompt-marker at | |
1137 | ;;; the start of the prompt; the process filter will notice this, and | |
1138 | ;;; delete all text between it and the process output marker. If | |
1139 | ;;; gud-delete-prompt-marker points nowhere, we leave the current | |
1140 | ;;; prompt alone. | |
1141 | (defvar gud-delete-prompt-marker nil) | |
1142 | ||
13b80a60 | 1143 | \f |
c47264b3 RS |
1144 | (put 'gud-mode 'mode-class 'special) |
1145 | ||
13b80a60 ER |
1146 | (defun gud-mode () |
1147 | "Major mode for interacting with an inferior debugger process. | |
24d725c2 | 1148 | |
6496f3d2 | 1149 | You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx, |
b0764b2d RS |
1150 | M-x perldb, or M-x xdb. Each entry point finishes by executing a |
1151 | hook; `gdb-mode-hook', `sdb-mode-hook', `dbx-mode-hook', | |
1152 | `perldb-mode-hook', or `xdb-mode-hook' respectively. | |
24d725c2 | 1153 | |
ee0155df ER |
1154 | After startup, the following commands are available in both the GUD |
1155 | interaction buffer and any source buffer GUD visits due to a breakpoint stop | |
1156 | or step operation: | |
13b80a60 | 1157 | |
ee0155df ER |
1158 | \\[gud-break] sets a breakpoint at the current file and line. In the |
1159 | GUD buffer, the current file and line are those of the last breakpoint or | |
1160 | step. In a source buffer, they are the buffer's file and current line. | |
1161 | ||
45025813 ER |
1162 | \\[gud-remove] removes breakpoints on the current file and line. |
1163 | ||
ee0155df | 1164 | \\[gud-refresh] displays in the source window the last line referred to |
24d725c2 | 1165 | in the gud buffer. |
13b80a60 | 1166 | |
ee0155df ER |
1167 | \\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line, |
1168 | step-one-line (not entering function calls), and step-one-instruction | |
1169 | and then update the source window with the current file and position. | |
1170 | \\[gud-cont] continues execution. | |
13b80a60 | 1171 | |
ee0155df ER |
1172 | \\[gud-print] tries to find the largest C lvalue or function-call expression |
1173 | around point, and sends it to the debugger for value display. | |
24d725c2 | 1174 | |
6496f3d2 RS |
1175 | The above commands are common to all supported debuggers except xdb which |
1176 | does not support stepping instructions. | |
24d725c2 | 1177 | |
6496f3d2 | 1178 | Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break], |
ee0155df ER |
1179 | except that the breakpoint is temporary; that is, it is removed when |
1180 | execution stops on it. | |
24d725c2 | 1181 | |
6496f3d2 | 1182 | Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack |
ee0155df | 1183 | frame. \\[gud-down] drops back down through one. |
24d725c2 | 1184 | |
6496f3d2 | 1185 | If you are using gdb or xdb, \\[gud-finish] runs execution to the return from |
ee0155df | 1186 | the current function and stops. |
24d725c2 | 1187 | |
dcec1a3b RS |
1188 | All the keystrokes above are accessible in the GUD buffer |
1189 | with the prefix C-c, and in all buffers through the prefix C-x C-a. | |
45025813 | 1190 | |
ee0155df ER |
1191 | All pre-defined functions for which the concept make sense repeat |
1192 | themselves the appropriate number of times if you give a prefix | |
1193 | argument. | |
13b80a60 | 1194 | |
dcec1a3b | 1195 | You may use the `gud-def' macro in the initialization hook to define other |
ee0155df | 1196 | commands. |
13b80a60 | 1197 | |
24d725c2 ER |
1198 | Other commands for interacting with the debugger process are inherited from |
1199 | comint mode, which see." | |
13b80a60 ER |
1200 | (interactive) |
1201 | (comint-mode) | |
13b80a60 ER |
1202 | (setq major-mode 'gud-mode) |
1203 | (setq mode-name "Debugger") | |
0b358e64 | 1204 | (setq mode-line-process '(":%s")) |
07fc7c8a KH |
1205 | (use-local-map comint-mode-map) |
1206 | (gud-make-debug-menu) | |
2b64612d | 1207 | (define-key (current-local-map) "\C-c\C-l" 'gud-refresh) |
13b80a60 ER |
1208 | (make-local-variable 'gud-last-frame) |
1209 | (setq gud-last-frame nil) | |
1210 | (make-local-variable 'comint-prompt-regexp) | |
aa9063cb RS |
1211 | ;; Don't put repeated commands in command history many times. |
1212 | (make-local-variable 'comint-input-ignoredups) | |
1213 | (setq comint-input-ignoredups t) | |
f54877b2 | 1214 | (make-local-variable 'paragraph-start) |
53eb3a97 JB |
1215 | (make-local-variable 'gud-delete-prompt-marker) |
1216 | (setq gud-delete-prompt-marker (make-marker)) | |
ee97eac3 | 1217 | (run-hooks 'gud-mode-hook)) |
13b80a60 | 1218 | |
a223b10d RM |
1219 | ;; Chop STRING into words separated by SPC or TAB and return a list of them. |
1220 | (defun gud-chop-words (string) | |
1221 | (let ((i 0) (beg 0) | |
1222 | (len (length string)) | |
1223 | (words nil)) | |
1224 | (while (< i len) | |
1225 | (if (memq (aref string i) '(?\t ? )) | |
1226 | (progn | |
1227 | (setq words (cons (substring string beg i) words) | |
1228 | beg (1+ i)) | |
1229 | (while (and (< beg len) (memq (aref string beg) '(?\t ? ))) | |
1230 | (setq beg (1+ beg))) | |
1231 | (setq i (1+ beg))) | |
1232 | (setq i (1+ i)))) | |
1233 | (if (< beg len) | |
1234 | (setq words (cons (substring string beg) words))) | |
1235 | (nreverse words))) | |
1236 | ||
1237 | ;; Perform initializations common to all debuggers. | |
ee97eac3 RS |
1238 | ;; The first arg is the specified command line, |
1239 | ;; which starts with the program to debug. | |
1240 | ;; The other three args specify the values to use | |
1241 | ;; for local variables in the debugger buffer. | |
1242 | (defun gud-common-init (command-line massage-args marker-filter find-file) | |
a223b10d RM |
1243 | (let* ((words (gud-chop-words command-line)) |
1244 | (program (car words)) | |
dfbd82a6 RS |
1245 | ;; Extract the file name from WORDS |
1246 | ;; and put t in its place. | |
1247 | ;; Later on we will put the modified file name arg back there. | |
a223b10d RM |
1248 | (file-word (let ((w (cdr words))) |
1249 | (while (and w (= ?- (aref (car w) 0))) | |
1250 | (setq w (cdr w))) | |
c27c1042 KH |
1251 | (and w |
1252 | (prog1 (car w) | |
1253 | (setcar w t))))) | |
0ec5b01d RS |
1254 | (file-subst |
1255 | (and file-word (substitute-in-file-name file-word))) | |
dfbd82a6 | 1256 | (args (cdr words)) |
0ec5b01d RS |
1257 | ;; If a directory was specified, expand the file name. |
1258 | ;; Otherwise, don't expand it, so GDB can use the PATH. | |
1259 | ;; A file name without directory is literally valid | |
1260 | ;; only if the file exists in ., and in that case, | |
1261 | ;; omitting the expansion here has no visible effect. | |
52b85866 | 1262 | (file (and file-word |
0ec5b01d RS |
1263 | (if (file-name-directory file-subst) |
1264 | (expand-file-name file-subst) | |
1265 | file-subst))) | |
c27c1042 KH |
1266 | (filepart (and file-word (concat "-" (file-name-nondirectory file))))) |
1267 | (switch-to-buffer (concat "*gud" filepart "*")) | |
0ec5b01d RS |
1268 | ;; Set default-directory to the file's directory. |
1269 | (and file-word | |
1270 | ;; Don't set default-directory if no directory was specified. | |
1271 | ;; In that case, either the file is found in the current directory, | |
1272 | ;; in which case this setq is a no-op, | |
1273 | ;; or it is found by searching PATH, | |
1274 | ;; in which case we don't know what directory it was found in. | |
1275 | (file-name-directory file) | |
1276 | (setq default-directory (file-name-directory file))) | |
ee97eac3 RS |
1277 | (or (bolp) (newline)) |
1278 | (insert "Current directory is " default-directory "\n") | |
dfbd82a6 RS |
1279 | ;; Put the substituted and expanded file name back in its place. |
1280 | (let ((w args)) | |
1281 | (while (and w (not (eq (car w) t))) | |
1282 | (setq w (cdr w))) | |
c27c1042 KH |
1283 | (if w |
1284 | (setcar w file))) | |
1285 | (apply 'make-comint (concat "gud" filepart) program nil | |
2b1ffa34 | 1286 | (funcall massage-args file args))) |
ee97eac3 | 1287 | ;; Since comint clobbered the mode, we don't set it until now. |
13b80a60 | 1288 | (gud-mode) |
ee97eac3 RS |
1289 | (make-local-variable 'gud-marker-filter) |
1290 | (setq gud-marker-filter marker-filter) | |
1291 | (make-local-variable 'gud-find-file) | |
1292 | (setq gud-find-file find-file) | |
1293 | ||
13b80a60 ER |
1294 | (set-process-filter (get-buffer-process (current-buffer)) 'gud-filter) |
1295 | (set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel) | |
13b80a60 ER |
1296 | (gud-set-buffer) |
1297 | ) | |
1298 | ||
1299 | (defun gud-set-buffer () | |
1300 | (cond ((eq major-mode 'gud-mode) | |
ee0155df ER |
1301 | (setq gud-comint-buffer (current-buffer))))) |
1302 | ||
11736488 RS |
1303 | (defvar gud-filter-defer-flag nil |
1304 | "Non-nil means don't process anything from the debugger right now. | |
1305 | It is saved for when this flag is not set.") | |
1306 | ||
1307 | (defvar gud-filter-pending-text nil | |
1308 | "Non-nil means this is text that has been saved for later in `gud-filter'.") | |
1309 | ||
ee0155df ER |
1310 | ;; These functions are responsible for inserting output from your debugger |
1311 | ;; into the buffer. The hard work is done by the method that is | |
1312 | ;; the value of gud-marker-filter. | |
13b80a60 | 1313 | |
ee0155df | 1314 | (defun gud-filter (proc string) |
13b80a60 | 1315 | ;; Here's where the actual buffer insertion is done |
7f4bda7c | 1316 | (let (output process-window) |
c561a0cb | 1317 | (if (buffer-name (process-buffer proc)) |
11736488 RS |
1318 | (if gud-filter-defer-flag |
1319 | ;; If we can't process any text now, | |
1320 | ;; save it for later. | |
1321 | (setq gud-filter-pending-text | |
1322 | (concat (or gud-filter-pending-text "") string)) | |
c7856dbe RS |
1323 | |
1324 | ;; If we have to ask a question during the processing, | |
1325 | ;; defer any additional text that comes from the debugger | |
1326 | ;; during that time. | |
1327 | (let ((gud-filter-defer-flag t)) | |
1328 | ;; Process now any text we previously saved up. | |
1329 | (if gud-filter-pending-text | |
1330 | (setq string (concat gud-filter-pending-text string) | |
1331 | gud-filter-pending-text nil)) | |
1332 | (save-excursion | |
11736488 RS |
1333 | (set-buffer (process-buffer proc)) |
1334 | ;; If we have been so requested, delete the debugger prompt. | |
1335 | (if (marker-buffer gud-delete-prompt-marker) | |
1336 | (progn | |
1337 | (delete-region (process-mark proc) gud-delete-prompt-marker) | |
1338 | (set-marker gud-delete-prompt-marker nil))) | |
1339 | ;; Save the process output, checking for source file markers. | |
1340 | (setq output (gud-marker-filter string)) | |
1341 | ;; Check for a filename-and-line number. | |
1342 | ;; Don't display the specified file | |
1343 | ;; unless (1) point is at or after the position where output appears | |
1344 | ;; and (2) this buffer is on the screen. | |
7f4bda7c RS |
1345 | (setq process-window |
1346 | (and gud-last-frame | |
1347 | (>= (point) (process-mark proc)) | |
c7856dbe RS |
1348 | (get-buffer-window (current-buffer)))) |
1349 | ||
1350 | ;; Let the comint filter do the actual insertion. | |
1351 | ;; That lets us inherit various comint features. | |
1352 | (comint-output-filter proc output))) | |
1353 | ||
1354 | ;; Put the arrow on the source line. | |
58684193 | 1355 | ;; This must be outside of the save-excursion |
c7856dbe RS |
1356 | ;; in case the source file is our current buffer. |
1357 | (if process-window | |
1358 | (save-selected-window | |
1359 | (select-window process-window) | |
58684193 RS |
1360 | (gud-display-frame)) |
1361 | ;; We have to be in the proper buffer, (process-buffer proc), | |
1362 | ;; but not in a save-excursion, because that would restore point. | |
1363 | (let ((old-buf (current-buffer))) | |
1364 | (set-buffer (process-buffer proc)) | |
1365 | (unwind-protect | |
1366 | (gud-display-frame) | |
1367 | (set-buffer old-buf)))) | |
c7856dbe RS |
1368 | |
1369 | ;; If we deferred text that arrived during this processing, | |
1370 | ;; handle it now. | |
1371 | (if gud-filter-pending-text | |
1372 | (gud-filter proc "")))))) | |
13b80a60 ER |
1373 | |
1374 | (defun gud-sentinel (proc msg) | |
1375 | (cond ((null (buffer-name (process-buffer proc))) | |
1376 | ;; buffer killed | |
1377 | ;; Stop displaying an arrow in a source file. | |
1378 | (setq overlay-arrow-position nil) | |
1379 | (set-process-buffer proc nil)) | |
1380 | ((memq (process-status proc) '(signal exit)) | |
1381 | ;; Stop displaying an arrow in a source file. | |
1382 | (setq overlay-arrow-position nil) | |
1383 | ;; Fix the mode line. | |
1384 | (setq mode-line-process | |
0b358e64 | 1385 | (concat ":" |
13b80a60 ER |
1386 | (symbol-name (process-status proc)))) |
1387 | (let* ((obuf (current-buffer))) | |
1388 | ;; save-excursion isn't the right thing if | |
1389 | ;; process-buffer is current-buffer | |
1390 | (unwind-protect | |
1391 | (progn | |
1392 | ;; Write something in *compilation* and hack its mode line, | |
1393 | (set-buffer (process-buffer proc)) | |
e726eb56 | 1394 | (force-mode-line-update) |
13b80a60 ER |
1395 | (if (eobp) |
1396 | (insert ?\n mode-name " " msg) | |
1397 | (save-excursion | |
1398 | (goto-char (point-max)) | |
1399 | (insert ?\n mode-name " " msg))) | |
1400 | ;; If buffer and mode line will show that the process | |
1401 | ;; is dead, we can delete it now. Otherwise it | |
1402 | ;; will stay around until M-x list-processes. | |
1403 | (delete-process proc)) | |
1404 | ;; Restore old buffer, but don't restore old point | |
1405 | ;; if obuf is the gud buffer. | |
1406 | (set-buffer obuf)))))) | |
1407 | ||
13b80a60 ER |
1408 | (defun gud-display-frame () |
1409 | "Find and obey the last filename-and-line marker from the debugger. | |
1410 | Obeying it means displaying in another window the specified file and line." | |
1411 | (interactive) | |
1412 | (if gud-last-frame | |
ee0155df | 1413 | (progn |
13b80a60 ER |
1414 | (gud-set-buffer) |
1415 | (gud-display-line (car gud-last-frame) (cdr gud-last-frame)) | |
32ab4c10 JB |
1416 | (setq gud-last-last-frame gud-last-frame |
1417 | gud-last-frame nil)))) | |
13b80a60 ER |
1418 | |
1419 | ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen | |
1420 | ;; and that its line LINE is visible. | |
1421 | ;; Put the overlay-arrow on the line LINE in that buffer. | |
ee0155df ER |
1422 | ;; Most of the trickiness in here comes from wanting to preserve the current |
1423 | ;; region-restriction if that's possible. We use an explicit display-buffer | |
1424 | ;; to get around the fact that this is called inside a save-excursion. | |
13b80a60 ER |
1425 | |
1426 | (defun gud-display-line (true-file line) | |
8f6c93e2 | 1427 | (let* ((last-nonmenu-event t) ; Prevent use of dialog box for questions. |
36d6372a RS |
1428 | (buffer |
1429 | (save-excursion | |
1430 | (or (eq (current-buffer) gud-comint-buffer) | |
1431 | (set-buffer gud-comint-buffer)) | |
1432 | (gud-find-file true-file))) | |
f55d65a1 RS |
1433 | (window (and buffer (or (get-buffer-window buffer) |
1434 | (display-buffer buffer)))) | |
13b80a60 | 1435 | (pos)) |
87a3fd19 RS |
1436 | (if buffer |
1437 | (progn | |
1438 | (save-excursion | |
1439 | (set-buffer buffer) | |
1440 | (save-restriction | |
1441 | (widen) | |
1442 | (goto-line line) | |
1443 | (setq pos (point)) | |
1444 | (setq overlay-arrow-string "=>") | |
1445 | (or overlay-arrow-position | |
1446 | (setq overlay-arrow-position (make-marker))) | |
1447 | (set-marker overlay-arrow-position (point) (current-buffer))) | |
1448 | (cond ((or (< pos (point-min)) (> pos (point-max))) | |
1449 | (widen) | |
1450 | (goto-char pos)))) | |
1451 | (set-window-point window overlay-arrow-position))))) | |
53eb3a97 | 1452 | |
ee0155df ER |
1453 | ;;; The gud-call function must do the right thing whether its invoking |
1454 | ;;; keystroke is from the GUD buffer itself (via major-mode binding) | |
5b08a462 ER |
1455 | ;;; or a C buffer. In the former case, we want to supply data from |
1456 | ;;; gud-last-frame. Here's how we do it: | |
13b80a60 | 1457 | |
ee0155df | 1458 | (defun gud-format-command (str arg) |
13eaa026 RS |
1459 | (let ((insource (not (eq (current-buffer) gud-comint-buffer))) |
1460 | (frame (or gud-last-frame gud-last-last-frame)) | |
1461 | result) | |
1462 | (while (and str (string-match "\\([^%]*\\)%\\([adeflp]\\)" str)) | |
1463 | (let ((key (string-to-char (substring str (match-beginning 2)))) | |
1464 | subst) | |
1465 | (cond | |
1466 | ((eq key ?f) | |
1467 | (setq subst (file-name-nondirectory (if insource | |
1468 | (buffer-file-name) | |
1469 | (car frame))))) | |
1470 | ((eq key ?d) | |
1471 | (setq subst (file-name-directory (if insource | |
7f359a21 | 1472 | (buffer-file-name) |
13eaa026 RS |
1473 | (car frame))))) |
1474 | ((eq key ?l) | |
1475 | (setq subst (if insource | |
1476 | (save-excursion | |
1477 | (beginning-of-line) | |
1478 | (save-restriction (widen) | |
1479 | (1+ (count-lines 1 (point))))) | |
1480 | (cdr frame)))) | |
1481 | ((eq key ?e) | |
ab4b0d2f | 1482 | (setq subst (gud-find-c-expr))) |
13eaa026 RS |
1483 | ((eq key ?a) |
1484 | (setq subst (gud-read-address))) | |
1485 | ((eq key ?p) | |
1486 | (setq subst (if arg (int-to-string arg) "")))) | |
1487 | (setq result (concat result | |
1488 | (substring str (match-beginning 1) (match-end 1)) | |
1489 | subst))) | |
1490 | (setq str (substring str (match-end 2)))) | |
1491 | ;; There might be text left in STR when the loop ends. | |
1492 | (concat result str))) | |
13b80a60 | 1493 | |
6bde8427 | 1494 | (defun gud-read-address () |
13b80a60 ER |
1495 | "Return a string containing the core-address found in the buffer at point." |
1496 | (save-excursion | |
6bde8427 | 1497 | (let ((pt (point)) found begin) |
ee0155df | 1498 | (setq found (if (search-backward "0x" (- pt 7) t) (point))) |
6bde8427 JB |
1499 | (cond |
1500 | (found (forward-char 2) | |
1501 | (buffer-substring found | |
1502 | (progn (re-search-forward "[^0-9a-f]") | |
1503 | (forward-char -1) | |
1504 | (point)))) | |
1505 | (t (setq begin (progn (re-search-backward "[^0-9]") | |
1506 | (forward-char 1) | |
1507 | (point))) | |
1508 | (forward-char 1) | |
1509 | (re-search-forward "[^0-9]") | |
1510 | (forward-char -1) | |
1511 | (buffer-substring begin (point))))))) | |
13b80a60 | 1512 | |
ee0155df ER |
1513 | (defun gud-call (fmt &optional arg) |
1514 | (let ((msg (gud-format-command fmt arg))) | |
1515 | (message "Command: %s" msg) | |
1516 | (sit-for 0) | |
1517 | (gud-basic-call msg))) | |
13b80a60 | 1518 | |
ee0155df ER |
1519 | (defun gud-basic-call (command) |
1520 | "Invoke the debugger COMMAND displaying source in other window." | |
1521 | (interactive) | |
1522 | (gud-set-buffer) | |
1523 | (let ((command (concat command "\n")) | |
1524 | (proc (get-buffer-process gud-comint-buffer))) | |
4b8b296e | 1525 | (or proc (error "Current buffer has no process")) |
ee0155df ER |
1526 | ;; Arrange for the current prompt to get deleted. |
1527 | (save-excursion | |
1528 | (set-buffer gud-comint-buffer) | |
1529 | (goto-char (process-mark proc)) | |
1530 | (beginning-of-line) | |
1531 | (if (looking-at comint-prompt-regexp) | |
1532 | (set-marker gud-delete-prompt-marker (point)))) | |
1533 | (process-send-string proc command))) | |
1534 | ||
1535 | (defun gud-refresh (&optional arg) | |
1536 | "Fix up a possibly garbled display, and redraw the arrow." | |
13b80a60 | 1537 | (interactive "P") |
ee0155df | 1538 | (recenter arg) |
32ab4c10 | 1539 | (or gud-last-frame (setq gud-last-frame gud-last-last-frame)) |
ee0155df | 1540 | (gud-display-frame)) |
dcec1a3b | 1541 | \f |
67580ab5 RS |
1542 | |
1543 | (defun gud-new-keymap (map) | |
1544 | "Return a new keymap which inherits from MAP and has name `Gud'." | |
1545 | (nconc (make-sparse-keymap "Gud") map)) | |
1546 | ||
1547 | (defun gud-make-debug-menu () | |
1548 | "Make sure the current local map has a [menu-bar debug] submap. | |
1549 | If it doesn't, replace it with a new map that inherits it, | |
1550 | and create such a submap in that new map." | |
1551 | (if (and (current-local-map) | |
1552 | (lookup-key (current-local-map) [menu-bar debug])) | |
1553 | nil | |
1554 | (use-local-map (gud-new-keymap (current-local-map))) | |
1555 | (define-key (current-local-map) [menu-bar debug] | |
1556 | (cons "Gud" (gud-new-keymap gud-menu-map))))) | |
1557 | \f | |
ee0155df ER |
1558 | ;;; Code for parsing expressions out of C code. The single entry point is |
1559 | ;;; find-c-expr, which tries to return an lvalue expression from around point. | |
1560 | ;;; | |
1561 | ;;; The rest of this file is a hacked version of gdbsrc.el by | |
1562 | ;;; Debby Ayers <ayers@asc.slb.com>, | |
1563 | ;;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx. | |
ee0155df | 1564 | |
ab4b0d2f | 1565 | (defun gud-find-c-expr () |
ee0155df ER |
1566 | "Returns the C expr that surrounds point." |
1567 | (interactive) | |
1568 | (save-excursion | |
ab4b0d2f | 1569 | (let (p expr test-expr) |
ee0155df | 1570 | (setq p (point)) |
ab4b0d2f RS |
1571 | (setq expr (gud-innermost-expr)) |
1572 | (setq test-expr (gud-prev-expr)) | |
1573 | (while (and test-expr (gud-expr-compound test-expr expr)) | |
1574 | (let ((prev-expr expr)) | |
1575 | (setq expr (cons (car test-expr) (cdr expr))) | |
1576 | (goto-char (car expr)) | |
1577 | (setq test-expr (gud-prev-expr)) | |
1578 | ;; If we just pasted on the condition of an if or while, | |
1579 | ;; throw it away again. | |
1580 | (if (member (buffer-substring (car test-expr) (cdr test-expr)) | |
1581 | '("if" "while" "for")) | |
1582 | (setq test-expr nil | |
1583 | expr prev-expr)))) | |
ee0155df | 1584 | (goto-char p) |
ab4b0d2f RS |
1585 | (setq test-expr (gud-next-expr)) |
1586 | (while (gud-expr-compound expr test-expr) | |
ee0155df | 1587 | (setq expr (cons (car expr) (cdr test-expr))) |
ab4b0d2f | 1588 | (setq test-expr (gud-next-expr)) |
ee0155df | 1589 | ) |
dcec1a3b | 1590 | (buffer-substring (car expr) (cdr expr))))) |
ee0155df | 1591 | |
ab4b0d2f RS |
1592 | (defun gud-innermost-expr () |
1593 | "Returns the smallest expr that point is in; move point to beginning of it. | |
ee0155df ER |
1594 | The expr is represented as a cons cell, where the car specifies the point in |
1595 | the current buffer that marks the beginning of the expr and the cdr specifies | |
dcec1a3b | 1596 | the character after the end of the expr." |
ab4b0d2f RS |
1597 | (let ((p (point)) begin end) |
1598 | (gud-backward-sexp) | |
ee0155df | 1599 | (setq begin (point)) |
ab4b0d2f | 1600 | (gud-forward-sexp) |
ee0155df ER |
1601 | (setq end (point)) |
1602 | (if (>= p end) | |
1603 | (progn | |
1604 | (setq begin p) | |
1605 | (goto-char p) | |
ab4b0d2f RS |
1606 | (gud-forward-sexp) |
1607 | (setq end (point))) | |
ee0155df ER |
1608 | ) |
1609 | (goto-char begin) | |
dcec1a3b | 1610 | (cons begin end))) |
ee0155df | 1611 | |
ab4b0d2f | 1612 | (defun gud-backward-sexp () |
dcec1a3b | 1613 | "Version of `backward-sexp' that catches errors." |
ee0155df ER |
1614 | (condition-case nil |
1615 | (backward-sexp) | |
1616 | (error t))) | |
1617 | ||
ab4b0d2f | 1618 | (defun gud-forward-sexp () |
dcec1a3b | 1619 | "Version of `forward-sexp' that catches errors." |
ee0155df ER |
1620 | (condition-case nil |
1621 | (forward-sexp) | |
1622 | (error t))) | |
1623 | ||
ab4b0d2f | 1624 | (defun gud-prev-expr () |
ee0155df ER |
1625 | "Returns the previous expr, point is set to beginning of that expr. |
1626 | The expr is represented as a cons cell, where the car specifies the point in | |
1627 | the current buffer that marks the beginning of the expr and the cdr specifies | |
1628 | the character after the end of the expr" | |
1629 | (let ((begin) (end)) | |
ab4b0d2f | 1630 | (gud-backward-sexp) |
ee0155df | 1631 | (setq begin (point)) |
ab4b0d2f | 1632 | (gud-forward-sexp) |
ee0155df ER |
1633 | (setq end (point)) |
1634 | (goto-char begin) | |
1635 | (cons begin end))) | |
1636 | ||
ab4b0d2f | 1637 | (defun gud-next-expr () |
ee0155df ER |
1638 | "Returns the following expr, point is set to beginning of that expr. |
1639 | The expr is represented as a cons cell, where the car specifies the point in | |
1640 | the current buffer that marks the beginning of the expr and the cdr specifies | |
dcec1a3b | 1641 | the character after the end of the expr." |
ee0155df | 1642 | (let ((begin) (end)) |
ab4b0d2f RS |
1643 | (gud-forward-sexp) |
1644 | (gud-forward-sexp) | |
ee0155df | 1645 | (setq end (point)) |
ab4b0d2f | 1646 | (gud-backward-sexp) |
ee0155df | 1647 | (setq begin (point)) |
dcec1a3b | 1648 | (cons begin end))) |
ee0155df | 1649 | |
ab4b0d2f RS |
1650 | (defun gud-expr-compound-sep (span-start span-end) |
1651 | "Scan from SPAN-START to SPAN-END for punctuation characters. | |
1652 | If `->' is found, return `?.'. If `.' is found, return `?.'. | |
1653 | If any other punctuation is found, return `??'. | |
1654 | If no punctuation is found, return `? '." | |
1655 | (let ((result ?\ ) | |
ee0155df ER |
1656 | (syntax)) |
1657 | (while (< span-start span-end) | |
1658 | (setq syntax (char-syntax (char-after span-start))) | |
1659 | (cond | |
ab4b0d2f | 1660 | ((= syntax ?\ ) t) |
ee0155df ER |
1661 | ((= syntax ?.) (setq syntax (char-after span-start)) |
1662 | (cond | |
1663 | ((= syntax ?.) (setq result ?.)) | |
1664 | ((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>)) | |
1665 | (setq result ?.) | |
1666 | (setq span-start (+ span-start 1))) | |
1667 | (t (setq span-start span-end) | |
1668 | (setq result ??))))) | |
1669 | (setq span-start (+ span-start 1))) | |
dcec1a3b | 1670 | result)) |
ee0155df | 1671 | |
ab4b0d2f RS |
1672 | (defun gud-expr-compound (first second) |
1673 | "Non-nil if concatenating FIRST and SECOND makes a single C expression. | |
dcec1a3b | 1674 | The two exprs are represented as a cons cells, where the car |
ee0155df | 1675 | specifies the point in the current buffer that marks the beginning of the |
dcec1a3b | 1676 | expr and the cdr specifies the character after the end of the expr. |
ee0155df ER |
1677 | Link exprs of the form: |
1678 | Expr -> Expr | |
1679 | Expr . Expr | |
1680 | Expr (Expr) | |
1681 | Expr [Expr] | |
1682 | (Expr) Expr | |
1683 | [Expr] Expr" | |
1684 | (let ((span-start (cdr first)) | |
1685 | (span-end (car second)) | |
1686 | (syntax)) | |
ab4b0d2f | 1687 | (setq syntax (gud-expr-compound-sep span-start span-end)) |
ee0155df ER |
1688 | (cond |
1689 | ((= (car first) (car second)) nil) | |
1690 | ((= (cdr first) (cdr second)) nil) | |
1691 | ((= syntax ?.) t) | |
ab4b0d2f | 1692 | ((= syntax ?\ ) |
ee0155df ER |
1693 | (setq span-start (char-after (- span-start 1))) |
1694 | (setq span-end (char-after span-end)) | |
1695 | (cond | |
ab4b0d2f RS |
1696 | ((= span-start ?)) t) |
1697 | ((= span-start ?]) t) | |
1698 | ((= span-end ?() t) | |
1699 | ((= span-end ?[) t) | |
1700 | (t nil))) | |
dcec1a3b | 1701 | (t nil)))) |
5b08a462 | 1702 | |
96f4e22e RM |
1703 | (provide 'gud) |
1704 | ||
f961a17c | 1705 | ;;; gud.el ends here |