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6496f3d2 RS |
1 | ;;; gud.el --- Grand Unified Debugger mode for gdb, sdb, dbx, or xdb |
2 | ;;; under Emacs | |
f961a17c | 3 | |
ee0155df | 4 | ;; Author: Eric S. Raymond <esr@snark.thyrsus.com> |
8ba194fc | 5 | ;; Maintainer: FSF |
f961a17c ER |
6 | ;; Keywords: unix, tools |
7 | ||
f8c25f1b | 8 | ;; Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc. |
13b80a60 ER |
9 | |
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
24d725c2 | 14 | ;; the Free Software Foundation; either version 2, or (at your option) |
13b80a60 ER |
15 | ;; any later version. |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
24 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
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 RS |
35 | ;; added the IRIX kluge, re-implemented the Mips-ish variant and added |
36 | ;; a menu. | |
13b80a60 | 37 | |
f961a17c ER |
38 | ;;; Code: |
39 | ||
13b80a60 | 40 | (require 'comint) |
e8a57935 | 41 | (require 'etags) |
13b80a60 | 42 | |
ee0155df | 43 | ;; ====================================================================== |
5b08a462 | 44 | ;; GUD commands must be visible in C buffers visited by GUD |
ee0155df | 45 | |
45025813 | 46 | (defvar gud-key-prefix "\C-x\C-a" |
5b08a462 | 47 | "Prefix of all GUD commands valid in C buffers.") |
ee0155df | 48 | |
5b08a462 | 49 | (global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh) |
16776e8d | 50 | (define-key ctl-x-map " " 'gud-break) ;; backward compatibility hack |
ee0155df | 51 | |
ee97eac3 RS |
52 | (defvar gud-marker-filter nil) |
53 | (put 'gud-marker-filter 'permanent-local t) | |
54 | (defvar gud-find-file nil) | |
55 | (put 'gud-find-file 'permanent-local t) | |
56 | ||
ee97eac3 RS |
57 | (defun gud-marker-filter (&rest args) |
58 | (apply gud-marker-filter args)) | |
59 | ||
60 | (defun gud-find-file (file) | |
61 | ;; Don't get confused by double slashes in the name that comes from GDB. | |
62 | (while (string-match "//+" file) | |
63 | (setq file (replace-match "/" t t file))) | |
64 | (funcall gud-find-file file)) | |
9bb4544b RS |
65 | |
66 | ;; Keymap definitions for menu bar entries common to all debuggers and | |
67 | ;; slots for debugger-dependent ones in sensible places. (Defined here | |
68 | ;; before use.) | |
69 | (defvar gud-menu-map (make-sparse-keymap "Gud") nil) | |
70 | (define-key gud-menu-map [refresh] '("Refresh" . gud-refresh)) | |
71 | (define-key gud-menu-map [remove] '("Remove breakpoint" . gud-remove)) | |
72 | (define-key gud-menu-map [tbreak] nil) ; gdb, sdb and xdb | |
73 | (define-key gud-menu-map [break] '("Set breakpoint" . gud-break)) | |
74 | (define-key gud-menu-map [up] nil) ; gdb, dbx, and xdb | |
75 | (define-key gud-menu-map [down] nil) ; gdb, dbx, and xdb | |
76 | (define-key gud-menu-map [print] '("Print expression" . gud-print)) | |
77 | (define-key gud-menu-map [finish] nil) ; gdb or xdb | |
78 | (define-key gud-menu-map [stepi] '("Step instruction" . gud-stepi)) | |
79 | (define-key gud-menu-map [step] '("Step line" . gud-step)) | |
80 | (define-key gud-menu-map [next] '("Next line" . gud-next)) | |
81 | (define-key gud-menu-map [cont] '("Continue" . gud-cont)) | |
575661b1 | 82 | \f |
ee0155df ER |
83 | ;; ====================================================================== |
84 | ;; command definition | |
13b80a60 ER |
85 | |
86 | ;; This macro is used below to define some basic debugger interface commands. | |
f961a17c | 87 | ;; Of course you may use `gud-def' with any other debugger command, including |
6bde8427 JB |
88 | ;; user defined ones. |
89 | ||
90 | ;; A macro call like (gud-def FUNC NAME KEY DOC) expands to a form | |
91 | ;; which defines FUNC to send the command NAME to the debugger, gives | |
ee0155df | 92 | ;; it the docstring DOC, and binds that function to KEY in the GUD |
5b08a462 ER |
93 | ;; major mode. The function is also bound in the global keymap with the |
94 | ;; GUD prefix. | |
ee0155df ER |
95 | |
96 | (defmacro gud-def (func cmd key &optional doc) | |
97 | "Define FUNC to be a command sending STR and bound to KEY, with | |
98 | optional doc string DOC. Certain %-escapes in the string arguments | |
99 | are interpreted specially if present. These are: | |
100 | ||
7f359a21 RS |
101 | %f name (without directory) of current source file. |
102 | %d directory of current source file. | |
ee0155df ER |
103 | %l number of current source line |
104 | %e text of the C lvalue or function-call expression surrounding point. | |
105 | %a text of the hexadecimal address surrounding point | |
106 | %p prefix argument to the command (if any) as a number | |
107 | ||
5b08a462 ER |
108 | The `current' source file is the file of the current buffer (if |
109 | we're in a C file) or the source file current at the last break or | |
110 | step (if we're in the GUD buffer). | |
111 | The `current' line is that of the current buffer (if we're in a | |
112 | source file) or the source line number at the last break or step (if | |
113 | we're in the GUD buffer)." | |
ee0155df ER |
114 | (list 'progn |
115 | (list 'defun func '(arg) | |
116 | (or doc "") | |
117 | '(interactive "p") | |
118 | (list 'gud-call cmd 'arg)) | |
119 | (if key | |
dd8e46c7 RS |
120 | (list 'define-key |
121 | '(current-local-map) | |
122 | (concat "\C-c" key) | |
123 | (list 'quote func))) | |
124 | (if key | |
125 | (list 'global-set-key | |
2352cbea | 126 | (list 'concat 'gud-key-prefix key) |
dd8e46c7 | 127 | (list 'quote func))))) |
13b80a60 | 128 | |
d840a865 JB |
129 | ;; Where gud-display-frame should put the debugging arrow. This is |
130 | ;; set by the marker-filter, which scans the debugger's output for | |
ee0155df | 131 | ;; indications of the current program counter. |
d840a865 JB |
132 | (defvar gud-last-frame nil) |
133 | ||
32ab4c10 JB |
134 | ;; Used by gud-refresh, which should cause gud-display-frame to redisplay |
135 | ;; the last frame, even if it's been called before and gud-last-frame has | |
136 | ;; been set to nil. | |
7447c37a | 137 | (defvar gud-last-last-frame nil) |
32ab4c10 | 138 | |
ee0155df ER |
139 | ;; All debugger-specific information is collected here. |
140 | ;; Here's how it works, in case you ever need to add a debugger to the mode. | |
13b80a60 ER |
141 | ;; |
142 | ;; Each entry must define the following at startup: | |
143 | ;; | |
144 | ;;<name> | |
145 | ;; comint-prompt-regexp | |
a223b10d | 146 | ;; gud-<name>-massage-args |
13b80a60 | 147 | ;; gud-<name>-marker-filter |
ee0155df | 148 | ;; gud-<name>-find-file |
13b80a60 | 149 | ;; |
a223b10d RM |
150 | ;; The job of the massage-args method is to modify the given list of |
151 | ;; debugger arguments before running the debugger. | |
10a4c11f JB |
152 | ;; |
153 | ;; The job of the marker-filter method is to detect file/line markers in | |
154 | ;; strings and set the global gud-last-frame to indicate what display | |
155 | ;; action (if any) should be triggered by the marker. Note that only | |
eb8c3be9 | 156 | ;; whatever the method *returns* is displayed in the buffer; thus, you |
10a4c11f JB |
157 | ;; can filter the debugger's output, interpreting some and passing on |
158 | ;; the rest. | |
159 | ;; | |
ee0155df | 160 | ;; The job of the find-file method is to visit and return the buffer indicated |
10a4c11f | 161 | ;; by the car of gud-tag-frame. This may be a file name, a tag name, or |
2291bfaa | 162 | ;; something else. It would be good if it also copied the Gud menubar entry. |
575661b1 | 163 | \f |
13b80a60 ER |
164 | ;; ====================================================================== |
165 | ;; gdb functions | |
166 | ||
f6376199 JB |
167 | ;;; History of argument lists passed to gdb. |
168 | (defvar gud-gdb-history nil) | |
169 | ||
a223b10d | 170 | (defun gud-gdb-massage-args (file args) |
dfbd82a6 | 171 | (cons "-fullname" args)) |
13b80a60 | 172 | |
768c29d0 JB |
173 | ;; There's no guarantee that Emacs will hand the filter the entire |
174 | ;; marker at once; it could be broken up across several strings. We | |
175 | ;; might even receive a big chunk with several markers in it. If we | |
176 | ;; receive a chunk of text which looks like it might contain the | |
177 | ;; beginning of a marker, we save it here between calls to the | |
178 | ;; filter. | |
f266485d | 179 | (defvar gud-marker-acc "") |
0d29cfe9 | 180 | (make-variable-buffer-local 'gud-marker-acc) |
768c29d0 | 181 | |
ee0155df | 182 | (defun gud-gdb-marker-filter (string) |
bed6a98d RS |
183 | (setq gud-marker-acc (concat gud-marker-acc string)) |
184 | (let ((output "")) | |
185 | ||
186 | ;; Process all the complete markers in this chunk. | |
187 | (while (string-match "\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
188 | gud-marker-acc) | |
189 | (setq | |
190 | ||
191 | ;; Extract the frame position from the marker. | |
192 | gud-last-frame | |
193 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
194 | (string-to-int (substring gud-marker-acc | |
195 | (match-beginning 2) | |
196 | (match-end 2)))) | |
197 | ||
198 | ;; Append any text before the marker to the output we're going | |
199 | ;; to return - we don't include the marker in this text. | |
200 | output (concat output | |
201 | (substring gud-marker-acc 0 (match-beginning 0))) | |
202 | ||
203 | ;; Set the accumulator to the remaining text. | |
204 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
205 | ||
206 | ;; Does the remaining text look like it might end with the | |
207 | ;; beginning of another marker? If it does, then keep it in | |
208 | ;; gud-marker-acc until we receive the rest of it. Since we | |
209 | ;; know the full marker regexp above failed, it's pretty simple to | |
210 | ;; test for marker starts. | |
211 | (if (string-match "\032.*\\'" gud-marker-acc) | |
212 | (progn | |
213 | ;; Everything before the potential marker start can be output. | |
214 | (setq output (concat output (substring gud-marker-acc | |
215 | 0 (match-beginning 0)))) | |
216 | ||
217 | ;; Everything after, we save, to combine with later input. | |
218 | (setq gud-marker-acc | |
219 | (substring gud-marker-acc (match-beginning 0)))) | |
220 | ||
221 | (setq output (concat output gud-marker-acc) | |
222 | gud-marker-acc "")) | |
223 | ||
224 | output)) | |
13b80a60 | 225 | |
23a3aa0a RS |
226 | (defun gud-new-keymap (map) |
227 | "Return a new keymap which inherits from MAP and has name `Gud'." | |
228 | (nconc (make-sparse-keymap "Gud") map)) | |
229 | ||
ee0155df | 230 | (defun gud-gdb-find-file (f) |
9bb4544b RS |
231 | (save-excursion |
232 | (let ((buf (find-file-noselect f))) | |
233 | (set-buffer buf) | |
23a3aa0a | 234 | (use-local-map (gud-new-keymap (current-local-map))) |
9bb4544b | 235 | (define-key (current-local-map) [menu-bar debug] |
23a3aa0a | 236 | (cons "Gud" (gud-new-keymap gud-menu-map))) |
9bb4544b RS |
237 | (local-set-key [menu-bar debug tbreak] |
238 | '("Temporary breakpoint" . gud-tbreak)) | |
239 | (local-set-key [menu-bar debug finish] '("Finish function" . gud-finish)) | |
240 | (local-set-key [menu-bar debug up] '("Up stack" . gud-up)) | |
241 | (local-set-key [menu-bar debug down] '("Down stack" . gud-down)) | |
242 | buf))) | |
13b80a60 | 243 | |
e886137a KH |
244 | (defvar gdb-minibuffer-local-map nil |
245 | "Keymap for minibuffer prompting of gdb startup command.") | |
246 | (if gdb-minibuffer-local-map | |
247 | () | |
248 | (setq gdb-minibuffer-local-map (copy-keymap minibuffer-local-map)) | |
249 | (define-key | |
250 | gdb-minibuffer-local-map "\C-i" 'comint-dynamic-complete-filename)) | |
251 | ||
10a4c11f | 252 | ;;;###autoload |
a223b10d | 253 | (defun gdb (command-line) |
13b80a60 ER |
254 | "Run gdb on program FILE in buffer *gud-FILE*. |
255 | The directory containing FILE becomes the initial working directory | |
256 | and source-file directory for your debugger." | |
f6376199 | 257 | (interactive |
a223b10d | 258 | (list (read-from-minibuffer "Run gdb (like this): " |
f6376199 JB |
259 | (if (consp gud-gdb-history) |
260 | (car gud-gdb-history) | |
a223b10d | 261 | "gdb ") |
e886137a | 262 | gdb-minibuffer-local-map nil |
f6376199 | 263 | '(gud-gdb-history . 1)))) |
ee0155df | 264 | |
ee97eac3 RS |
265 | (gud-common-init command-line 'gud-gdb-massage-args |
266 | 'gud-gdb-marker-filter 'gud-gdb-find-file) | |
5b08a462 | 267 | |
dd8e46c7 | 268 | (gud-def gud-break "break %f:%l" "\C-b" "Set breakpoint at current line.") |
2fb419e1 | 269 | (gud-def gud-tbreak "tbreak %f:%l" "\C-t" "Set temporary breakpoint at current line.") |
23a3aa0a | 270 | (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line") |
dd8e46c7 RS |
271 | (gud-def gud-step "step %p" "\C-s" "Step one source line with display.") |
272 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
273 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
274 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
275 | (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
ee0155df ER |
276 | (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") |
277 | (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
dd8e46c7 | 278 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 279 | |
0e0de659 | 280 | (local-set-key "\C-i" 'gud-gdb-complete-command) |
2291bfaa RS |
281 | (local-set-key [menu-bar debug tbreak] '("Temporary breakpoint" . gud-tbreak)) |
282 | (local-set-key [menu-bar debug finish] '("Finish function" . gud-finish)) | |
283 | (local-set-key [menu-bar debug up] '("Up stack" . gud-up)) | |
284 | (local-set-key [menu-bar debug down] '("Down stack" . gud-down)) | |
13b80a60 | 285 | (setq comint-prompt-regexp "^(.*gdb[+]?) *") |
f54877b2 | 286 | (setq paragraph-start comint-prompt-regexp) |
13b80a60 ER |
287 | (run-hooks 'gdb-mode-hook) |
288 | ) | |
289 | ||
0e0de659 RS |
290 | ;; One of the nice features of GDB is its impressive support for |
291 | ;; context-sensitive command completion. We preserve that feature | |
292 | ;; in the GUD buffer by using a GDB command designed just for Emacs. | |
293 | ||
294 | ;; The completion process filter indicates when it is finished. | |
295 | (defvar gud-gdb-complete-in-progress) | |
296 | ||
297 | ;; Since output may arrive in fragments we accumulate partials strings here. | |
298 | (defvar gud-gdb-complete-string) | |
299 | ||
300 | ;; We need to know how much of the completion to chop off. | |
301 | (defvar gud-gdb-complete-break) | |
302 | ||
303 | ;; The completion list is constructed by the process filter. | |
304 | (defvar gud-gdb-complete-list) | |
305 | ||
30df2a53 RS |
306 | (defvar gud-comint-buffer nil) |
307 | ||
0e0de659 RS |
308 | (defun gud-gdb-complete-command () |
309 | "Perform completion on the GDB command preceding point. | |
310 | This is implemented using the GDB `complete' command which isn't | |
311 | available with older versions of GDB." | |
312 | (interactive) | |
313 | (let* ((end (point)) | |
314 | (command (save-excursion | |
315 | (beginning-of-line) | |
316 | (and (looking-at comint-prompt-regexp) | |
317 | (goto-char (match-end 0))) | |
318 | (buffer-substring (point) end))) | |
319 | command-word) | |
320 | ;; Find the word break. This match will always succeed. | |
321 | (string-match "\\(\\`\\| \\)\\([^ ]*\\)\\'" command) | |
322 | (setq gud-gdb-complete-break (match-beginning 2) | |
323 | command-word (substring command gud-gdb-complete-break)) | |
ee97eac3 RS |
324 | ;; Temporarily install our filter function. |
325 | (let ((gud-marker-filter 'gud-gdb-complete-filter)) | |
326 | ;; Issue the command to GDB. | |
327 | (gud-basic-call (concat "complete " command)) | |
328 | (setq gud-gdb-complete-in-progress t | |
329 | gud-gdb-complete-string nil | |
330 | gud-gdb-complete-list nil) | |
331 | ;; Slurp the output. | |
332 | (while gud-gdb-complete-in-progress | |
333 | (accept-process-output (get-buffer-process gud-comint-buffer)))) | |
0e0de659 RS |
334 | ;; Protect against old versions of GDB. |
335 | (and gud-gdb-complete-list | |
336 | (string-match "^Undefined command: \"complete\"" | |
337 | (car gud-gdb-complete-list)) | |
338 | (error "This version of GDB doesn't support the `complete' command.")) | |
339 | ;; Sort the list like readline. | |
340 | (setq gud-gdb-complete-list | |
341 | (sort gud-gdb-complete-list (function string-lessp))) | |
342 | ;; Remove duplicates. | |
343 | (let ((first gud-gdb-complete-list) | |
344 | (second (cdr gud-gdb-complete-list))) | |
345 | (while second | |
346 | (if (string-equal (car first) (car second)) | |
347 | (setcdr first (setq second (cdr second))) | |
348 | (setq first second | |
349 | second (cdr second))))) | |
fd63b4f4 KH |
350 | ;; Add a trailing single quote if there is a unique completion |
351 | ;; and it contains an odd number of unquoted single quotes. | |
352 | (and (= (length gud-gdb-complete-list) 1) | |
353 | (let ((str (car gud-gdb-complete-list)) | |
354 | (pos 0) | |
355 | (count 0)) | |
356 | (while (string-match "\\([^'\\]\\|\\\\'\\)*'" str pos) | |
357 | (setq count (1+ count) | |
358 | pos (match-end 0))) | |
359 | (and (= (mod count 2) 1) | |
360 | (setq gud-gdb-complete-list (list (concat str "'")))))) | |
0e0de659 RS |
361 | ;; Let comint handle the rest. |
362 | (comint-dynamic-simple-complete command-word gud-gdb-complete-list))) | |
363 | ||
364 | ;; The completion process filter is installed temporarily to slurp the | |
365 | ;; output of GDB up to the next prompt and build the completion list. | |
366 | (defun gud-gdb-complete-filter (string) | |
367 | (setq string (concat gud-gdb-complete-string string)) | |
368 | (while (string-match "\n" string) | |
369 | (setq gud-gdb-complete-list | |
370 | (cons (substring string gud-gdb-complete-break (match-beginning 0)) | |
371 | gud-gdb-complete-list)) | |
372 | (setq string (substring string (match-end 0)))) | |
373 | (if (string-match comint-prompt-regexp string) | |
374 | (progn | |
375 | (setq gud-gdb-complete-in-progress nil) | |
376 | string) | |
377 | (progn | |
378 | (setq gud-gdb-complete-string string) | |
379 | ""))) | |
380 | ||
575661b1 | 381 | \f |
13b80a60 ER |
382 | ;; ====================================================================== |
383 | ;; sdb functions | |
384 | ||
f6376199 JB |
385 | ;;; History of argument lists passed to sdb. |
386 | (defvar gud-sdb-history nil) | |
387 | ||
ee0155df ER |
388 | (defvar gud-sdb-needs-tags (not (file-exists-p "/var")) |
389 | "If nil, we're on a System V Release 4 and don't need the tags hack.") | |
390 | ||
391 | (defvar gud-sdb-lastfile nil) | |
392 | ||
dfbd82a6 | 393 | (defun gud-sdb-massage-args (file args) args) |
13b80a60 | 394 | |
ee0155df | 395 | (defun gud-sdb-marker-filter (string) |
7f629252 RS |
396 | (setq gud-marker-acc |
397 | (if gud-marker-acc (concat gud-marker-acc string) string)) | |
398 | (let (start) | |
399 | ;; Process all complete markers in this chunk | |
400 | (while | |
401 | (cond | |
402 | ;; System V Release 3.2 uses this format | |
403 | ((string-match "\\(^0x\\w* in \\|^\\|\n\\)\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
404 | gud-marker-acc start) | |
405 | (setq gud-last-frame | |
406 | (cons | |
407 | (substring gud-marker-acc (match-beginning 2) (match-end 2)) | |
408 | (string-to-int | |
409 | (substring gud-marker-acc (match-beginning 3) (match-end 3)))))) | |
410 | ;; System V Release 4.0 quite often clumps two lines together | |
411 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n\\([0-9]+\\):" | |
412 | gud-marker-acc start) | |
413 | (setq gud-sdb-lastfile | |
414 | (substring gud-marker-acc (match-beginning 2) (match-end 2))) | |
415 | (setq gud-last-frame | |
416 | (cons | |
417 | gud-sdb-lastfile | |
418 | (string-to-int | |
419 | (substring gud-marker-acc (match-beginning 3) (match-end 3)))))) | |
420 | ;; System V Release 4.0 | |
421 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n" | |
422 | gud-marker-acc start) | |
423 | (setq gud-sdb-lastfile | |
424 | (substring gud-marker-acc (match-beginning 2) (match-end 2)))) | |
425 | ((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):" | |
426 | gud-marker-acc start)) | |
427 | (setq gud-last-frame | |
428 | (cons | |
429 | gud-sdb-lastfile | |
430 | (string-to-int | |
431 | (substring gud-marker-acc (match-beginning 1) (match-end 1)))))) | |
432 | (t | |
433 | (setq gud-sdb-lastfile nil))) | |
434 | (setq start (match-end 0))) | |
435 | ||
436 | ;; Search for the last incomplete line in this chunk | |
437 | (while (string-match "\n" gud-marker-acc start) | |
438 | (setq start (match-end 0))) | |
439 | ||
440 | ;; If we have an incomplete line, store it in gud-marker-acc. | |
441 | ;; Otherwise clear gud-marker-acc. to avoid an | |
442 | ;; unnecessary concat when this function runs next. | |
443 | (setq gud-marker-acc | |
444 | (if (= start (length gud-marker-acc)) | |
445 | (substring gud-marker-acc start) | |
446 | nil))) | |
13b80a60 ER |
447 | string) |
448 | ||
ee0155df | 449 | (defun gud-sdb-find-file (f) |
9bb4544b RS |
450 | (save-excursion |
451 | (let ((buf (if gud-sdb-needs-tags | |
452 | (find-tag-noselect f) | |
453 | (find-file-noselect f)))) | |
454 | (set-buffer buf) | |
23a3aa0a RS |
455 | (use-local-map (gud-new-keymap (current-local-map))) |
456 | (define-key (current-local-map) [menu-bar debug] | |
457 | (cons "Gud" (gud-new-keymap gud-menu-map))) | |
9bb4544b RS |
458 | (local-set-key [menu-bar debug tbreak] '("Temporary breakpoint" . gud-tbreak)) |
459 | buf))) | |
13b80a60 | 460 | |
10a4c11f | 461 | ;;;###autoload |
a223b10d | 462 | (defun sdb (command-line) |
13b80a60 ER |
463 | "Run sdb on program FILE in buffer *gud-FILE*. |
464 | The directory containing FILE becomes the initial working directory | |
465 | and source-file directory for your debugger." | |
f6376199 | 466 | (interactive |
a223b10d | 467 | (list (read-from-minibuffer "Run sdb (like this): " |
f6376199 JB |
468 | (if (consp gud-sdb-history) |
469 | (car gud-sdb-history) | |
a223b10d | 470 | "sdb ") |
f6376199 JB |
471 | nil nil |
472 | '(gud-sdb-history . 1)))) | |
ee0155df | 473 | (if (and gud-sdb-needs-tags |
e290aebb RS |
474 | (not (and (boundp 'tags-file-name) |
475 | (stringp tags-file-name) | |
476 | (file-exists-p tags-file-name)))) | |
13b80a60 | 477 | (error "The sdb support requires a valid tags table to work.")) |
13b80a60 | 478 | |
ee97eac3 RS |
479 | (gud-common-init command-line 'gud-sdb-massage-args |
480 | 'gud-sdb-marker-filter 'gud-sdb-find-file) | |
5b08a462 | 481 | |
dd8e46c7 RS |
482 | (gud-def gud-break "%l b" "\C-b" "Set breakpoint at current line.") |
483 | (gud-def gud-tbreak "%l c" "\C-t" "Set temporary breakpoint at current line.") | |
484 | (gud-def gud-remove "%l d" "\C-d" "Remove breakpoint at current line") | |
485 | (gud-def gud-step "s %p" "\C-s" "Step one source line with display.") | |
486 | (gud-def gud-stepi "i %p" "\C-i" "Step one instruction with display.") | |
487 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
488 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
489 | (gud-def gud-print "%e/" "\C-p" "Evaluate C expression at point.") | |
13b80a60 | 490 | |
6bde8427 | 491 | (setq comint-prompt-regexp "\\(^\\|\n\\)\\*") |
f54877b2 | 492 | (setq paragraph-start comint-prompt-regexp) |
2291bfaa RS |
493 | (local-set-key [menu-bar debug tbreak] |
494 | '("Temporary breakpoint" . gud-tbreak)) | |
13b80a60 ER |
495 | (run-hooks 'sdb-mode-hook) |
496 | ) | |
575661b1 | 497 | \f |
13b80a60 ER |
498 | ;; ====================================================================== |
499 | ;; dbx functions | |
500 | ||
f6376199 JB |
501 | ;;; History of argument lists passed to dbx. |
502 | (defvar gud-dbx-history nil) | |
503 | ||
dfbd82a6 | 504 | (defun gud-dbx-massage-args (file args) args) |
13b80a60 | 505 | |
ee0155df | 506 | (defun gud-dbx-marker-filter (string) |
7f629252 RS |
507 | (setq gud-marker-acc (if gud-marker-acc (concat gud-marker-acc string) string)) |
508 | ||
509 | (let (start) | |
510 | ;; Process all complete markers in this chunk. | |
511 | (while (or (string-match | |
512 | "stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
513 | gud-marker-acc start) | |
514 | (string-match | |
515 | "signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
516 | gud-marker-acc start)) | |
13b80a60 ER |
517 | (setq gud-last-frame |
518 | (cons | |
7f629252 | 519 | (substring gud-marker-acc (match-beginning 2) (match-end 2)) |
13b80a60 | 520 | (string-to-int |
7f629252 RS |
521 | (substring gud-marker-acc (match-beginning 1) (match-end 1)))) |
522 | start (match-end 0))) | |
523 | ||
524 | ;; Search for the last incomplete line in this chunk | |
525 | (while (string-match "\n" gud-marker-acc start) | |
526 | (setq start (match-end 0))) | |
527 | ||
528 | ;; If the incomplete line APPEARS to begin with another marker, keep it | |
529 | ;; in the accumulator. Otherwise, clear the accumulator to avoid an | |
530 | ;; unnecessary concat during the next call. | |
531 | (setq gud-marker-acc | |
532 | (if (string-match "\\(stopped\\|signal\\)" gud-marker-acc start) | |
533 | (substring gud-marker-acc (match-beginning 0)) | |
534 | nil))) | |
13b80a60 ER |
535 | string) |
536 | ||
f266485d RS |
537 | ;; Functions for Mips-style dbx. Given the option `-emacs', documented in |
538 | ;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's. | |
539 | (defvar gud-mips-p | |
540 | (or (string-match "^mips-[^-]*-ultrix" system-configuration) | |
541 | ;; We haven't tested gud on this system: | |
542 | (string-match "^mips-[^-]*-riscos" system-configuration) | |
543 | ;; It's documented on OSF/1.3 | |
9f24ea14 RS |
544 | (string-match "^mips-[^-]*-osf1" system-configuration) |
545 | (string-match "^alpha-[^-]*-osf" system-configuration)) | |
f266485d | 546 | "Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').") |
13eaa026 RS |
547 | |
548 | (defun gud-mipsdbx-massage-args (file args) | |
dfbd82a6 | 549 | (cons "-emacs" args)) |
13eaa026 | 550 | |
f266485d RS |
551 | ;; This is just like the gdb one except for the regexps since we need to cope |
552 | ;; with an optional breakpoint number in [] before the ^Z^Z | |
13eaa026 | 553 | (defun gud-mipsdbx-marker-filter (string) |
bed6a98d RS |
554 | (setq gud-marker-acc (concat gud-marker-acc string)) |
555 | (let ((output "")) | |
556 | ||
557 | ;; Process all the complete markers in this chunk. | |
558 | (while (string-match | |
559 | ;; This is like th gdb marker but with an optional | |
560 | ;; leading break point number like `[1] ' | |
561 | "[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
562 | gud-marker-acc) | |
563 | (setq | |
564 | ||
565 | ;; Extract the frame position from the marker. | |
566 | gud-last-frame | |
567 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
568 | (string-to-int (substring gud-marker-acc | |
569 | (match-beginning 2) | |
570 | (match-end 2)))) | |
571 | ||
572 | ;; Append any text before the marker to the output we're going | |
573 | ;; to return - we don't include the marker in this text. | |
574 | output (concat output | |
575 | (substring gud-marker-acc 0 (match-beginning 0))) | |
576 | ||
577 | ;; Set the accumulator to the remaining text. | |
578 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
579 | ||
580 | ;; Does the remaining text look like it might end with the | |
581 | ;; beginning of another marker? If it does, then keep it in | |
582 | ;; gud-marker-acc until we receive the rest of it. Since we | |
583 | ;; know the full marker regexp above failed, it's pretty simple to | |
584 | ;; test for marker starts. | |
585 | (if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc) | |
586 | (progn | |
587 | ;; Everything before the potential marker start can be output. | |
588 | (setq output (concat output (substring gud-marker-acc | |
589 | 0 (match-beginning 0)))) | |
590 | ||
591 | ;; Everything after, we save, to combine with later input. | |
592 | (setq gud-marker-acc | |
593 | (substring gud-marker-acc (match-beginning 0)))) | |
594 | ||
595 | (setq output (concat output gud-marker-acc) | |
596 | gud-marker-acc "")) | |
597 | ||
598 | output)) | |
13eaa026 | 599 | |
f266485d RS |
600 | ;; The dbx in IRIX is a pain. It doesn't print the file name when |
601 | ;; stopping at a breakpoint (but you do get it from the `up' and | |
602 | ;; `down' commands...). The only way to extract the information seems | |
603 | ;; to be with a `file' command, although the current line number is | |
604 | ;; available in $curline. Thus we have to look for output which | |
605 | ;; appears to indicate a breakpoint. Then we prod the dbx sub-process | |
606 | ;; to output the information we want with a combination of the | |
607 | ;; `printf' and `file' commands as a pseudo marker which we can | |
608 | ;; recognise next time through the marker-filter. This would be like | |
609 | ;; the gdb marker but you can't get the file name without a newline... | |
610 | ;; Note that gud-remove won't work since Irix dbx expects a breakpoint | |
611 | ;; number rather than a line number etc. Maybe this could be made to | |
612 | ;; work by listing all the breakpoints and picking the one(s) with the | |
613 | ;; correct line number, but life's too short. | |
614 | ;; d.love@dl.ac.uk (Dave Love) can be blamed for this | |
615 | ||
616 | (defvar gud-irix-p (string-match "^mips-[^-]*-irix" system-configuration) | |
617 | "Non-nil to assume the interface appropriate for IRIX dbx. | |
2fb419e1 RS |
618 | This works in IRIX 4, 5 and 6.") |
619 | ;; [Irix dbx seems to be a moving target. The dbx output changed | |
620 | ;; subtly sometime between OS v4.0.5 and v5.2 so that, for instance, | |
621 | ;; the output from `up' is no longer spotted by gud (and it's probably | |
622 | ;; not distinctive enough to try to match it -- use C-<, C-> | |
623 | ;; exclusively) . For 5.3 and 6.0, the $curline variable changed to | |
624 | ;; `long long'(why?!), so the printf stuff needed changing. The line | |
625 | ;; number is cast to `long' as a compromise between the new `long | |
626 | ;; long' and the original `int'. The process filter is also somewhat | |
627 | ;; unreliable, sometimes not spotting the markers; I don't know | |
628 | ;; whether there's anything that can be done about that. It would be | |
629 | ;; much better if SGI could be persuaded to (re?)instate the MIPS | |
630 | ;; -emacs flag for gdb-like output (which ought to be possible as most | |
631 | ;; of the communication I've had over it has been from sgi.com).] | |
f266485d RS |
632 | |
633 | ;; this filter is influenced by the xdb one rather than the gdb one | |
634 | (defun gud-irixdbx-marker-filter (string) | |
bed6a98d RS |
635 | (let (result (case-fold-search nil)) |
636 | (if (or (string-match comint-prompt-regexp string) | |
637 | (string-match ".*\012" string)) | |
638 | (setq result (concat gud-marker-acc string) | |
639 | gud-marker-acc "") | |
640 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
641 | (if result | |
642 | (cond | |
643 | ;; look for breakpoint or signal indication e.g.: | |
644 | ;; [2] Process 1267 (pplot) stopped at [params:338 ,0x400ec0] | |
645 | ;; Process 1281 (pplot) stopped at [params:339 ,0x400ec8] | |
646 | ;; Process 1270 (pplot) Floating point exception [._read._read:16 ,0x452188] | |
647 | ((string-match | |
648 | "^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n" | |
649 | result) | |
650 | ;; prod dbx into printing out the line number and file | |
651 | ;; name in a form we can grok as below | |
652 | (process-send-string (get-buffer-process gud-comint-buffer) | |
e802811f | 653 | "printf \"\032\032%1d:\",(long)$curline;file\n")) |
bed6a98d RS |
654 | ;; look for result of, say, "up" e.g.: |
655 | ;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c] | |
656 | ;; (this will also catch one of the lines printed by "where") | |
657 | ((string-match | |
658 | "^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n" | |
659 | result) | |
660 | (let ((file (substring result (match-beginning 1) | |
661 | (match-end 1)))) | |
662 | (if (file-exists-p file) | |
663 | (setq gud-last-frame | |
664 | (cons | |
665 | (substring | |
666 | result (match-beginning 1) (match-end 1)) | |
667 | (string-to-int | |
668 | (substring | |
669 | result (match-beginning 2) (match-end 2))))))) | |
670 | result) | |
671 | ((string-match ; kluged-up marker as above | |
672 | "\032\032\\([0-9]*\\):\\(.*\\)\n" result) | |
673 | (let ((file (substring result (match-beginning 2) (match-end 2)))) | |
674 | (if (file-exists-p file) | |
675 | (setq gud-last-frame | |
676 | (cons | |
677 | file | |
678 | (string-to-int | |
679 | (substring | |
680 | result (match-beginning 1) (match-end 1))))))) | |
681 | (setq result (substring result 0 (match-beginning 0)))))) | |
682 | (or result ""))) | |
f266485d | 683 | |
ee0155df | 684 | (defun gud-dbx-find-file (f) |
9bb4544b RS |
685 | (save-excursion |
686 | (let ((buf (find-file-noselect f))) | |
687 | (set-buffer buf) | |
23a3aa0a RS |
688 | (use-local-map (gud-new-keymap (current-local-map))) |
689 | (define-key (current-local-map) [menu-bar debug] | |
690 | (cons "Gud" (gud-new-keymap gud-menu-map))) | |
9bb4544b RS |
691 | (local-set-key [menu-bar debug up] '("Up stack" . gud-up)) |
692 | (local-set-key [menu-bar debug down] '("Down stack" . gud-down)) | |
693 | buf))) | |
13b80a60 | 694 | |
10a4c11f | 695 | ;;;###autoload |
a223b10d | 696 | (defun dbx (command-line) |
13b80a60 ER |
697 | "Run dbx on program FILE in buffer *gud-FILE*. |
698 | The directory containing FILE becomes the initial working directory | |
699 | and source-file directory for your debugger." | |
f6376199 | 700 | (interactive |
a223b10d | 701 | (list (read-from-minibuffer "Run dbx (like this): " |
f6376199 JB |
702 | (if (consp gud-dbx-history) |
703 | (car gud-dbx-history) | |
a223b10d | 704 | "dbx ") |
f6376199 JB |
705 | nil nil |
706 | '(gud-dbx-history . 1)))) | |
13eaa026 | 707 | |
ee97eac3 RS |
708 | (cond |
709 | (gud-mips-p | |
710 | (gud-common-init command-line 'gud-mipsdbx-massage-args | |
711 | 'gud-mipsdbx-marker-filter 'gud-dbx-find-file)) | |
712 | (gud-irix-p | |
713 | (gud-common-init command-line 'gud-dbx-massage-args | |
714 | 'gud-irixdbx-marker-filter 'gud-dbx-find-file)) | |
715 | (t | |
716 | (gud-common-init command-line 'gud-dbx-massage-args | |
717 | 'gud-dbx-marker-filter 'gud-dbx-find-file))) | |
5b08a462 | 718 | |
13eaa026 | 719 | (cond |
f266485d | 720 | (gud-mips-p |
2fb419e1 RS |
721 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
722 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
13eaa026 RS |
723 | (gud-def gud-break "stop at \"%f\":%l" |
724 | "\C-b" "Set breakpoint at current line.") | |
725 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.")) | |
f266485d RS |
726 | (gud-irix-p |
727 | (gud-def gud-break "stop at \"%d%f\":%l" | |
728 | "\C-b" "Set breakpoint at current line.") | |
729 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.") | |
2fb419e1 RS |
730 | (gud-def gud-up "up %p; printf \"\032\032%1ld:\",(long)$curline;file\n" |
731 | "<" "Up (numeric arg) stack frames.") | |
732 | (gud-def gud-down "down %p; printf \"\032\032%1ld:\",(long)$curline;file\n" | |
733 | ">" "Down (numeric arg) stack frames.") | |
f266485d RS |
734 | ;; Make dbx give out the source location info that we need. |
735 | (process-send-string (get-buffer-process gud-comint-buffer) | |
e802811f | 736 | "printf \"\032\032%1d:\",(long)$curline;file\n")) |
13eaa026 | 737 | (t |
2fb419e1 RS |
738 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
739 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
13eaa026 RS |
740 | (gud-def gud-break "file \"%d%f\"\nstop at %l" |
741 | "\C-b" "Set breakpoint at current line."))) | |
742 | ||
dd8e46c7 RS |
743 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") |
744 | (gud-def gud-step "step %p" "\C-s" "Step one line with display.") | |
745 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
746 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
747 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
dd8e46c7 | 748 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 749 | |
13eaa026 | 750 | (setq comint-prompt-regexp "^[^)\n]*dbx) *") |
f54877b2 | 751 | (setq paragraph-start comint-prompt-regexp) |
2291bfaa RS |
752 | (local-set-key [menu-bar debug up] '("Up stack" . gud-up)) |
753 | (local-set-key [menu-bar debug down] '("Down stack" . gud-down)) | |
13b80a60 ER |
754 | (run-hooks 'dbx-mode-hook) |
755 | ) | |
575661b1 | 756 | \f |
6496f3d2 RS |
757 | ;; ====================================================================== |
758 | ;; xdb (HP PARISC debugger) functions | |
759 | ||
f6376199 JB |
760 | ;;; History of argument lists passed to xdb. |
761 | (defvar gud-xdb-history nil) | |
762 | ||
fce222c7 RS |
763 | (defvar gud-xdb-directories nil |
764 | "*A list of directories that xdb should search for source code. | |
765 | If nil, only source files in the program directory | |
766 | will be known to xdb. | |
767 | ||
768 | The file names should be absolute, or relative to the directory | |
769 | containing the executable being debugged.") | |
770 | ||
a223b10d RM |
771 | (defun gud-xdb-massage-args (file args) |
772 | (nconc (let ((directories gud-xdb-directories) | |
773 | (result nil)) | |
774 | (while directories | |
775 | (setq result (cons (car directories) (cons "-d" result))) | |
776 | (setq directories (cdr directories))) | |
dfbd82a6 | 777 | (nreverse result)) |
a223b10d | 778 | args)) |
6496f3d2 RS |
779 | |
780 | (defun gud-xdb-file-name (f) | |
781 | "Transform a relative pathname to a full pathname in xdb mode" | |
782 | (let ((result nil)) | |
783 | (if (file-exists-p f) | |
784 | (setq result (expand-file-name f)) | |
fce222c7 RS |
785 | (let ((directories gud-xdb-directories)) |
786 | (while directories | |
787 | (let ((path (concat (car directories) "/" f))) | |
6496f3d2 RS |
788 | (if (file-exists-p path) |
789 | (setq result (expand-file-name path) | |
fce222c7 RS |
790 | directories nil))) |
791 | (setq directories (cdr directories))))) | |
6496f3d2 RS |
792 | result)) |
793 | ||
794 | ;; xdb does not print the lines all at once, so we have to accumulate them | |
6496f3d2 RS |
795 | (defun gud-xdb-marker-filter (string) |
796 | (let (result) | |
797 | (if (or (string-match comint-prompt-regexp string) | |
798 | (string-match ".*\012" string)) | |
f266485d RS |
799 | (setq result (concat gud-marker-acc string) |
800 | gud-marker-acc "") | |
801 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
6496f3d2 RS |
802 | (if result |
803 | (if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\):" result) | |
804 | (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):" | |
805 | result)) | |
806 | (let ((line (string-to-int | |
807 | (substring result (match-beginning 2) (match-end 2)))) | |
808 | (file (gud-xdb-file-name | |
809 | (substring result (match-beginning 1) (match-end 1))))) | |
810 | (if file | |
811 | (setq gud-last-frame (cons file line)))))) | |
812 | (or result ""))) | |
813 | ||
6496f3d2 | 814 | (defun gud-xdb-find-file (f) |
9bb4544b RS |
815 | (save-excursion |
816 | (let ((realf (gud-xdb-file-name f))) | |
817 | (if realf | |
818 | (let ((buf (find-file-noselect realf))) | |
819 | (set-buffer buf) | |
23a3aa0a RS |
820 | (use-local-map (gud-new-keymap (current-local-map))) |
821 | (define-key (current-local-map) [menu-bar debug] | |
822 | (cons "Gud" (gud-new-keymap gud-menu-map))) | |
9bb4544b RS |
823 | (local-set-key [menu-bar debug tbreak] |
824 | '("Temporary breakpoint" . gud-tbreak)) | |
825 | (local-set-key [menu-bar debug finish] | |
826 | '("Finish function" . gud-finish)) | |
827 | (local-set-key [menu-bar debug up] '("Up stack" . gud-up)) | |
828 | (local-set-key [menu-bar debug up] '("Up stack" . gud-up)) | |
829 | (local-set-key [menu-bar debug down] '("Down stack" . gud-down)) | |
830 | buf) | |
831 | nil)))) | |
6496f3d2 RS |
832 | |
833 | ;;;###autoload | |
a223b10d | 834 | (defun xdb (command-line) |
6496f3d2 RS |
835 | "Run xdb on program FILE in buffer *gud-FILE*. |
836 | The directory containing FILE becomes the initial working directory | |
837 | and source-file directory for your debugger. | |
838 | ||
fce222c7 | 839 | You can set the variable 'gud-xdb-directories' to a list of program source |
6496f3d2 | 840 | directories if your program contains sources from more than one directory." |
f6376199 | 841 | (interactive |
a223b10d | 842 | (list (read-from-minibuffer "Run xdb (like this): " |
f6376199 JB |
843 | (if (consp gud-xdb-history) |
844 | (car gud-xdb-history) | |
a223b10d | 845 | "xdb ") |
f6376199 JB |
846 | nil nil |
847 | '(gud-xdb-history . 1)))) | |
6496f3d2 | 848 | |
ee97eac3 RS |
849 | (gud-common-init command-line 'gud-xdb-massage-args |
850 | 'gud-xdb-marker-filter 'gud-xdb-find-file) | |
6496f3d2 RS |
851 | |
852 | (gud-def gud-break "b %f:%l" "\C-b" "Set breakpoint at current line.") | |
853 | (gud-def gud-tbreak "b %f:%l\\t" "\C-t" | |
854 | "Set temporary breakpoint at current line.") | |
855 | (gud-def gud-remove "db" "\C-d" "Remove breakpoint at current line") | |
856 | (gud-def gud-step "s %p" "\C-s" "Step one line with display.") | |
857 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
858 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
859 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") | |
860 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
861 | (gud-def gud-finish "bu\\t" "\C-f" "Finish executing current function.") | |
862 | (gud-def gud-print "p %e" "\C-p" "Evaluate C expression at point.") | |
863 | ||
864 | (setq comint-prompt-regexp "^>") | |
f54877b2 | 865 | (setq paragraph-start comint-prompt-regexp) |
2291bfaa RS |
866 | (local-set-key [menu-bar debug tbreak] '("Temporary breakpoint" . gud-tbreak)) |
867 | (local-set-key [menu-bar debug finish] '("Finish function" . gud-finish)) | |
868 | (local-set-key [menu-bar debug up] '("Up stack" . gud-up)) | |
869 | (local-set-key [menu-bar debug down] '("Down stack" . gud-down)) | |
6496f3d2 | 870 | (run-hooks 'xdb-mode-hook)) |
575661b1 RS |
871 | \f |
872 | ;; ====================================================================== | |
873 | ;; perldb functions | |
874 | ||
875 | ;;; History of argument lists passed to perldb. | |
876 | (defvar gud-perldb-history nil) | |
877 | ||
878 | (defun gud-perldb-massage-args (file args) | |
dfbd82a6 | 879 | (cons "-d" (cons "-emacs" args))) |
575661b1 RS |
880 | |
881 | ;; There's no guarantee that Emacs will hand the filter the entire | |
882 | ;; marker at once; it could be broken up across several strings. We | |
883 | ;; might even receive a big chunk with several markers in it. If we | |
884 | ;; receive a chunk of text which looks like it might contain the | |
885 | ;; beginning of a marker, we save it here between calls to the | |
886 | ;; filter. | |
887 | (defvar gud-perldb-marker-acc "") | |
888 | ||
889 | (defun gud-perldb-marker-filter (string) | |
bed6a98d RS |
890 | (setq gud-marker-acc (concat gud-marker-acc string)) |
891 | (let ((output "")) | |
892 | ||
893 | ;; Process all the complete markers in this chunk. | |
894 | (while (string-match "\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
895 | gud-marker-acc) | |
896 | (setq | |
897 | ||
898 | ;; Extract the frame position from the marker. | |
899 | gud-last-frame | |
900 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
901 | (string-to-int (substring gud-marker-acc | |
902 | (match-beginning 2) | |
903 | (match-end 2)))) | |
904 | ||
905 | ;; Append any text before the marker to the output we're going | |
906 | ;; to return - we don't include the marker in this text. | |
907 | output (concat output | |
908 | (substring gud-marker-acc 0 (match-beginning 0))) | |
909 | ||
910 | ;; Set the accumulator to the remaining text. | |
911 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
912 | ||
913 | ;; Does the remaining text look like it might end with the | |
914 | ;; beginning of another marker? If it does, then keep it in | |
915 | ;; gud-marker-acc until we receive the rest of it. Since we | |
916 | ;; know the full marker regexp above failed, it's pretty simple to | |
917 | ;; test for marker starts. | |
918 | (if (string-match "\032.*\\'" gud-marker-acc) | |
919 | (progn | |
920 | ;; Everything before the potential marker start can be output. | |
921 | (setq output (concat output (substring gud-marker-acc | |
922 | 0 (match-beginning 0)))) | |
923 | ||
924 | ;; Everything after, we save, to combine with later input. | |
925 | (setq gud-marker-acc | |
926 | (substring gud-marker-acc (match-beginning 0)))) | |
927 | ||
928 | (setq output (concat output gud-marker-acc) | |
929 | gud-marker-acc "")) | |
930 | ||
931 | output)) | |
575661b1 RS |
932 | |
933 | (defun gud-perldb-find-file (f) | |
9bb4544b RS |
934 | (save-excursion |
935 | (let ((buf (find-file-noselect f))) | |
936 | (set-buffer buf) | |
937 | (define-key (current-local-map) [menu-bar debug] (cons "Gud" (copy-keymap gud-menu-map))) | |
938 | buf))) | |
575661b1 RS |
939 | |
940 | ;;;###autoload | |
941 | (defun perldb (command-line) | |
942 | "Run perldb on program FILE in buffer *gud-FILE*. | |
943 | The directory containing FILE becomes the initial working directory | |
944 | and source-file directory for your debugger." | |
945 | (interactive | |
946 | (list (read-from-minibuffer "Run perldb (like this): " | |
947 | (if (consp gud-perldb-history) | |
948 | (car gud-perldb-history) | |
2c32e5c6 | 949 | "perl ") |
575661b1 RS |
950 | nil nil |
951 | '(gud-perldb-history . 1)))) | |
575661b1 | 952 | |
ee97eac3 RS |
953 | (gud-common-init command-line 'gud-perldb-massage-args |
954 | 'gud-perldb-marker-filter 'gud-perldb-find-file) | |
575661b1 | 955 | |
2c32e5c6 RS |
956 | (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.") |
957 | (gud-def gud-remove "d %l" "\C-d" "Remove breakpoint at current line") | |
958 | (gud-def gud-step "s" "\C-s" "Step one source line with display.") | |
959 | (gud-def gud-next "n" "\C-n" "Step one line (skip functions).") | |
960 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
961 | ; (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
962 | ; (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") | |
963 | ; (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
964 | (gud-def gud-print "%e" "\C-p" "Evaluate perl expression at point.") | |
965 | ||
966 | (setq comint-prompt-regexp "^ DB<[0-9]+> ") | |
f54877b2 | 967 | (setq paragraph-start comint-prompt-regexp) |
2c32e5c6 | 968 | (run-hooks 'perldb-mode-hook) |
575661b1 | 969 | ) |
6496f3d2 | 970 | |
13b80a60 ER |
971 | ;; |
972 | ;; End of debugger-specific information | |
10a4c11f | 973 | ;; |
13b80a60 | 974 | |
575661b1 | 975 | \f |
53eb3a97 JB |
976 | ;;; When we send a command to the debugger via gud-call, it's annoying |
977 | ;;; to see the command and the new prompt inserted into the debugger's | |
978 | ;;; buffer; we have other ways of knowing the command has completed. | |
979 | ;;; | |
980 | ;;; If the buffer looks like this: | |
981 | ;;; -------------------- | |
982 | ;;; (gdb) set args foo bar | |
983 | ;;; (gdb) -!- | |
984 | ;;; -------------------- | |
985 | ;;; (the -!- marks the location of point), and we type `C-x SPC' in a | |
986 | ;;; source file to set a breakpoint, we want the buffer to end up like | |
987 | ;;; this: | |
988 | ;;; -------------------- | |
989 | ;;; (gdb) set args foo bar | |
990 | ;;; Breakpoint 1 at 0x92: file make-docfile.c, line 49. | |
991 | ;;; (gdb) -!- | |
992 | ;;; -------------------- | |
993 | ;;; Essentially, the old prompt is deleted, and the command's output | |
994 | ;;; and the new prompt take its place. | |
995 | ;;; | |
996 | ;;; Not echoing the command is easy enough; you send it directly using | |
997 | ;;; process-send-string, and it never enters the buffer. However, | |
998 | ;;; getting rid of the old prompt is trickier; you don't want to do it | |
999 | ;;; when you send the command, since that will result in an annoying | |
1000 | ;;; flicker as the prompt is deleted, redisplay occurs while Emacs | |
1001 | ;;; waits for a response from the debugger, and the new prompt is | |
1002 | ;;; inserted. Instead, we'll wait until we actually get some output | |
1003 | ;;; from the subprocess before we delete the prompt. If the command | |
1004 | ;;; produced no output other than a new prompt, that prompt will most | |
1005 | ;;; likely be in the first chunk of output received, so we will delete | |
1006 | ;;; the prompt and then replace it with an identical one. If the | |
1007 | ;;; command produces output, the prompt is moving anyway, so the | |
1008 | ;;; flicker won't be annoying. | |
1009 | ;;; | |
1010 | ;;; So - when we want to delete the prompt upon receipt of the next | |
1011 | ;;; chunk of debugger output, we position gud-delete-prompt-marker at | |
1012 | ;;; the start of the prompt; the process filter will notice this, and | |
1013 | ;;; delete all text between it and the process output marker. If | |
1014 | ;;; gud-delete-prompt-marker points nowhere, we leave the current | |
1015 | ;;; prompt alone. | |
1016 | (defvar gud-delete-prompt-marker nil) | |
1017 | ||
13b80a60 ER |
1018 | \f |
1019 | (defun gud-mode () | |
1020 | "Major mode for interacting with an inferior debugger process. | |
24d725c2 | 1021 | |
6496f3d2 RS |
1022 | You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx, |
1023 | or M-x xdb. Each entry point finishes by executing a hook; `gdb-mode-hook', | |
1024 | `sdb-mode-hook', `dbx-mode-hook' or `xdb-mode-hook' respectively. | |
24d725c2 | 1025 | |
ee0155df ER |
1026 | After startup, the following commands are available in both the GUD |
1027 | interaction buffer and any source buffer GUD visits due to a breakpoint stop | |
1028 | or step operation: | |
13b80a60 | 1029 | |
ee0155df ER |
1030 | \\[gud-break] sets a breakpoint at the current file and line. In the |
1031 | GUD buffer, the current file and line are those of the last breakpoint or | |
1032 | step. In a source buffer, they are the buffer's file and current line. | |
1033 | ||
45025813 ER |
1034 | \\[gud-remove] removes breakpoints on the current file and line. |
1035 | ||
ee0155df | 1036 | \\[gud-refresh] displays in the source window the last line referred to |
24d725c2 | 1037 | in the gud buffer. |
13b80a60 | 1038 | |
ee0155df ER |
1039 | \\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line, |
1040 | step-one-line (not entering function calls), and step-one-instruction | |
1041 | and then update the source window with the current file and position. | |
1042 | \\[gud-cont] continues execution. | |
13b80a60 | 1043 | |
ee0155df ER |
1044 | \\[gud-print] tries to find the largest C lvalue or function-call expression |
1045 | around point, and sends it to the debugger for value display. | |
24d725c2 | 1046 | |
6496f3d2 RS |
1047 | The above commands are common to all supported debuggers except xdb which |
1048 | does not support stepping instructions. | |
24d725c2 | 1049 | |
6496f3d2 | 1050 | Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break], |
ee0155df ER |
1051 | except that the breakpoint is temporary; that is, it is removed when |
1052 | execution stops on it. | |
24d725c2 | 1053 | |
6496f3d2 | 1054 | Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack |
ee0155df | 1055 | frame. \\[gud-down] drops back down through one. |
24d725c2 | 1056 | |
6496f3d2 | 1057 | If you are using gdb or xdb, \\[gud-finish] runs execution to the return from |
ee0155df | 1058 | the current function and stops. |
24d725c2 | 1059 | |
dcec1a3b RS |
1060 | All the keystrokes above are accessible in the GUD buffer |
1061 | with the prefix C-c, and in all buffers through the prefix C-x C-a. | |
45025813 | 1062 | |
ee0155df ER |
1063 | All pre-defined functions for which the concept make sense repeat |
1064 | themselves the appropriate number of times if you give a prefix | |
1065 | argument. | |
13b80a60 | 1066 | |
dcec1a3b | 1067 | You may use the `gud-def' macro in the initialization hook to define other |
ee0155df | 1068 | commands. |
13b80a60 | 1069 | |
24d725c2 ER |
1070 | Other commands for interacting with the debugger process are inherited from |
1071 | comint mode, which see." | |
13b80a60 ER |
1072 | (interactive) |
1073 | (comint-mode) | |
13b80a60 ER |
1074 | (setq major-mode 'gud-mode) |
1075 | (setq mode-name "Debugger") | |
0b358e64 | 1076 | (setq mode-line-process '(":%s")) |
23a3aa0a | 1077 | (use-local-map (gud-new-keymap comint-mode-map)) |
2b64612d | 1078 | (define-key (current-local-map) "\C-c\C-l" 'gud-refresh) |
2291bfaa | 1079 | (define-key (current-local-map) [menu-bar debug] |
23a3aa0a | 1080 | (cons "Gud" (gud-new-keymap gud-menu-map))) |
13b80a60 ER |
1081 | (make-local-variable 'gud-last-frame) |
1082 | (setq gud-last-frame nil) | |
1083 | (make-local-variable 'comint-prompt-regexp) | |
f54877b2 | 1084 | (make-local-variable 'paragraph-start) |
53eb3a97 JB |
1085 | (make-local-variable 'gud-delete-prompt-marker) |
1086 | (setq gud-delete-prompt-marker (make-marker)) | |
ee97eac3 | 1087 | (run-hooks 'gud-mode-hook)) |
13b80a60 | 1088 | |
a223b10d RM |
1089 | ;; Chop STRING into words separated by SPC or TAB and return a list of them. |
1090 | (defun gud-chop-words (string) | |
1091 | (let ((i 0) (beg 0) | |
1092 | (len (length string)) | |
1093 | (words nil)) | |
1094 | (while (< i len) | |
1095 | (if (memq (aref string i) '(?\t ? )) | |
1096 | (progn | |
1097 | (setq words (cons (substring string beg i) words) | |
1098 | beg (1+ i)) | |
1099 | (while (and (< beg len) (memq (aref string beg) '(?\t ? ))) | |
1100 | (setq beg (1+ beg))) | |
1101 | (setq i (1+ beg))) | |
1102 | (setq i (1+ i)))) | |
1103 | (if (< beg len) | |
1104 | (setq words (cons (substring string beg) words))) | |
1105 | (nreverse words))) | |
1106 | ||
1107 | ;; Perform initializations common to all debuggers. | |
ee97eac3 RS |
1108 | ;; The first arg is the specified command line, |
1109 | ;; which starts with the program to debug. | |
1110 | ;; The other three args specify the values to use | |
1111 | ;; for local variables in the debugger buffer. | |
1112 | (defun gud-common-init (command-line massage-args marker-filter find-file) | |
a223b10d RM |
1113 | (let* ((words (gud-chop-words command-line)) |
1114 | (program (car words)) | |
dfbd82a6 RS |
1115 | ;; Extract the file name from WORDS |
1116 | ;; and put t in its place. | |
1117 | ;; Later on we will put the modified file name arg back there. | |
a223b10d RM |
1118 | (file-word (let ((w (cdr words))) |
1119 | (while (and w (= ?- (aref (car w) 0))) | |
1120 | (setq w (cdr w))) | |
dfbd82a6 RS |
1121 | (prog1 (car w) |
1122 | (setcar w t)))) | |
0ec5b01d RS |
1123 | (file-subst |
1124 | (and file-word (substitute-in-file-name file-word))) | |
dfbd82a6 | 1125 | (args (cdr words)) |
0ec5b01d RS |
1126 | ;; If a directory was specified, expand the file name. |
1127 | ;; Otherwise, don't expand it, so GDB can use the PATH. | |
1128 | ;; A file name without directory is literally valid | |
1129 | ;; only if the file exists in ., and in that case, | |
1130 | ;; omitting the expansion here has no visible effect. | |
52b85866 | 1131 | (file (and file-word |
0ec5b01d RS |
1132 | (if (file-name-directory file-subst) |
1133 | (expand-file-name file-subst) | |
1134 | file-subst))) | |
52b85866 | 1135 | (filepart (and file-word (file-name-nondirectory file)))) |
ee97eac3 | 1136 | (switch-to-buffer (concat "*gud-" filepart "*")) |
0ec5b01d RS |
1137 | ;; Set default-directory to the file's directory. |
1138 | (and file-word | |
1139 | ;; Don't set default-directory if no directory was specified. | |
1140 | ;; In that case, either the file is found in the current directory, | |
1141 | ;; in which case this setq is a no-op, | |
1142 | ;; or it is found by searching PATH, | |
1143 | ;; in which case we don't know what directory it was found in. | |
1144 | (file-name-directory file) | |
1145 | (setq default-directory (file-name-directory file))) | |
ee97eac3 RS |
1146 | (or (bolp) (newline)) |
1147 | (insert "Current directory is " default-directory "\n") | |
dfbd82a6 RS |
1148 | ;; Put the substituted and expanded file name back in its place. |
1149 | (let ((w args)) | |
1150 | (while (and w (not (eq (car w) t))) | |
1151 | (setq w (cdr w))) | |
1152 | (setcar w file)) | |
ee97eac3 | 1153 | (apply 'make-comint (concat "gud-" filepart) program nil |
dfbd82a6 | 1154 | (if file-word (funcall massage-args file args) args))) |
ee97eac3 | 1155 | ;; Since comint clobbered the mode, we don't set it until now. |
13b80a60 | 1156 | (gud-mode) |
ee97eac3 RS |
1157 | (make-local-variable 'gud-marker-filter) |
1158 | (setq gud-marker-filter marker-filter) | |
1159 | (make-local-variable 'gud-find-file) | |
1160 | (setq gud-find-file find-file) | |
1161 | ||
13b80a60 ER |
1162 | (set-process-filter (get-buffer-process (current-buffer)) 'gud-filter) |
1163 | (set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel) | |
13b80a60 ER |
1164 | (gud-set-buffer) |
1165 | ) | |
1166 | ||
1167 | (defun gud-set-buffer () | |
1168 | (cond ((eq major-mode 'gud-mode) | |
ee0155df ER |
1169 | (setq gud-comint-buffer (current-buffer))))) |
1170 | ||
1171 | ;; These functions are responsible for inserting output from your debugger | |
1172 | ;; into the buffer. The hard work is done by the method that is | |
1173 | ;; the value of gud-marker-filter. | |
13b80a60 | 1174 | |
ee0155df | 1175 | (defun gud-filter (proc string) |
13b80a60 | 1176 | ;; Here's where the actual buffer insertion is done |
c561a0cb RS |
1177 | (let (output) |
1178 | (if (buffer-name (process-buffer proc)) | |
1179 | (save-excursion | |
1180 | (set-buffer (process-buffer proc)) | |
1181 | ;; If we have been so requested, delete the debugger prompt. | |
1182 | (if (marker-buffer gud-delete-prompt-marker) | |
1183 | (progn | |
1184 | (delete-region (process-mark proc) gud-delete-prompt-marker) | |
1185 | (set-marker gud-delete-prompt-marker nil))) | |
1186 | ;; Save the process output, checking for source file markers. | |
1187 | (setq output (gud-marker-filter string)) | |
1188 | ;; Check for a filename-and-line number. | |
1189 | ;; Don't display the specified file | |
1190 | ;; unless (1) point is at or after the position where output appears | |
1191 | ;; and (2) this buffer is on the screen. | |
1192 | (if (and gud-last-frame | |
1193 | (>= (point) (process-mark proc)) | |
1194 | (get-buffer-window (current-buffer))) | |
1195 | (gud-display-frame)) | |
1196 | ;; Let the comint filter do the actual insertion. | |
1197 | ;; That lets us inherit various comint features. | |
1198 | (comint-output-filter proc output))))) | |
13b80a60 ER |
1199 | |
1200 | (defun gud-sentinel (proc msg) | |
1201 | (cond ((null (buffer-name (process-buffer proc))) | |
1202 | ;; buffer killed | |
1203 | ;; Stop displaying an arrow in a source file. | |
1204 | (setq overlay-arrow-position nil) | |
1205 | (set-process-buffer proc nil)) | |
1206 | ((memq (process-status proc) '(signal exit)) | |
1207 | ;; Stop displaying an arrow in a source file. | |
1208 | (setq overlay-arrow-position nil) | |
1209 | ;; Fix the mode line. | |
1210 | (setq mode-line-process | |
0b358e64 | 1211 | (concat ":" |
13b80a60 ER |
1212 | (symbol-name (process-status proc)))) |
1213 | (let* ((obuf (current-buffer))) | |
1214 | ;; save-excursion isn't the right thing if | |
1215 | ;; process-buffer is current-buffer | |
1216 | (unwind-protect | |
1217 | (progn | |
1218 | ;; Write something in *compilation* and hack its mode line, | |
1219 | (set-buffer (process-buffer proc)) | |
1220 | ;; Force mode line redisplay soon | |
1221 | (set-buffer-modified-p (buffer-modified-p)) | |
1222 | (if (eobp) | |
1223 | (insert ?\n mode-name " " msg) | |
1224 | (save-excursion | |
1225 | (goto-char (point-max)) | |
1226 | (insert ?\n mode-name " " msg))) | |
1227 | ;; If buffer and mode line will show that the process | |
1228 | ;; is dead, we can delete it now. Otherwise it | |
1229 | ;; will stay around until M-x list-processes. | |
1230 | (delete-process proc)) | |
1231 | ;; Restore old buffer, but don't restore old point | |
1232 | ;; if obuf is the gud buffer. | |
1233 | (set-buffer obuf)))))) | |
1234 | ||
13b80a60 ER |
1235 | (defun gud-display-frame () |
1236 | "Find and obey the last filename-and-line marker from the debugger. | |
1237 | Obeying it means displaying in another window the specified file and line." | |
1238 | (interactive) | |
1239 | (if gud-last-frame | |
ee0155df | 1240 | (progn |
13b80a60 ER |
1241 | (gud-set-buffer) |
1242 | (gud-display-line (car gud-last-frame) (cdr gud-last-frame)) | |
32ab4c10 JB |
1243 | (setq gud-last-last-frame gud-last-frame |
1244 | gud-last-frame nil)))) | |
13b80a60 ER |
1245 | |
1246 | ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen | |
1247 | ;; and that its line LINE is visible. | |
1248 | ;; Put the overlay-arrow on the line LINE in that buffer. | |
ee0155df ER |
1249 | ;; Most of the trickiness in here comes from wanting to preserve the current |
1250 | ;; region-restriction if that's possible. We use an explicit display-buffer | |
1251 | ;; to get around the fact that this is called inside a save-excursion. | |
13b80a60 ER |
1252 | |
1253 | (defun gud-display-line (true-file line) | |
8f6c93e2 RS |
1254 | (let* ((last-nonmenu-event t) ; Prevent use of dialog box for questions. |
1255 | (buffer (gud-find-file true-file)) | |
ee0155df | 1256 | (window (display-buffer buffer)) |
13b80a60 | 1257 | (pos)) |
dd8e46c7 RS |
1258 | ;;; (if (equal buffer (current-buffer)) |
1259 | ;;; nil | |
1260 | ;;; (setq buffer-read-only nil)) | |
13b80a60 | 1261 | (save-excursion |
dd8e46c7 | 1262 | ;;; (setq buffer-read-only t) |
13b80a60 ER |
1263 | (set-buffer buffer) |
1264 | (save-restriction | |
1265 | (widen) | |
1266 | (goto-line line) | |
1267 | (setq pos (point)) | |
1268 | (setq overlay-arrow-string "=>") | |
1269 | (or overlay-arrow-position | |
1270 | (setq overlay-arrow-position (make-marker))) | |
1271 | (set-marker overlay-arrow-position (point) (current-buffer))) | |
1272 | (cond ((or (< pos (point-min)) (> pos (point-max))) | |
1273 | (widen) | |
1274 | (goto-char pos)))) | |
1275 | (set-window-point window overlay-arrow-position))) | |
53eb3a97 | 1276 | |
ee0155df ER |
1277 | ;;; The gud-call function must do the right thing whether its invoking |
1278 | ;;; keystroke is from the GUD buffer itself (via major-mode binding) | |
5b08a462 ER |
1279 | ;;; or a C buffer. In the former case, we want to supply data from |
1280 | ;;; gud-last-frame. Here's how we do it: | |
13b80a60 | 1281 | |
ee0155df | 1282 | (defun gud-format-command (str arg) |
13eaa026 RS |
1283 | (let ((insource (not (eq (current-buffer) gud-comint-buffer))) |
1284 | (frame (or gud-last-frame gud-last-last-frame)) | |
1285 | result) | |
1286 | (while (and str (string-match "\\([^%]*\\)%\\([adeflp]\\)" str)) | |
1287 | (let ((key (string-to-char (substring str (match-beginning 2)))) | |
1288 | subst) | |
1289 | (cond | |
1290 | ((eq key ?f) | |
1291 | (setq subst (file-name-nondirectory (if insource | |
1292 | (buffer-file-name) | |
1293 | (car frame))))) | |
1294 | ((eq key ?d) | |
1295 | (setq subst (file-name-directory (if insource | |
7f359a21 | 1296 | (buffer-file-name) |
13eaa026 RS |
1297 | (car frame))))) |
1298 | ((eq key ?l) | |
1299 | (setq subst (if insource | |
1300 | (save-excursion | |
1301 | (beginning-of-line) | |
1302 | (save-restriction (widen) | |
1303 | (1+ (count-lines 1 (point))))) | |
1304 | (cdr frame)))) | |
1305 | ((eq key ?e) | |
1306 | (setq subst (find-c-expr))) | |
1307 | ((eq key ?a) | |
1308 | (setq subst (gud-read-address))) | |
1309 | ((eq key ?p) | |
1310 | (setq subst (if arg (int-to-string arg) "")))) | |
1311 | (setq result (concat result | |
1312 | (substring str (match-beginning 1) (match-end 1)) | |
1313 | subst))) | |
1314 | (setq str (substring str (match-end 2)))) | |
1315 | ;; There might be text left in STR when the loop ends. | |
1316 | (concat result str))) | |
13b80a60 | 1317 | |
6bde8427 | 1318 | (defun gud-read-address () |
13b80a60 ER |
1319 | "Return a string containing the core-address found in the buffer at point." |
1320 | (save-excursion | |
6bde8427 | 1321 | (let ((pt (point)) found begin) |
ee0155df | 1322 | (setq found (if (search-backward "0x" (- pt 7) t) (point))) |
6bde8427 JB |
1323 | (cond |
1324 | (found (forward-char 2) | |
1325 | (buffer-substring found | |
1326 | (progn (re-search-forward "[^0-9a-f]") | |
1327 | (forward-char -1) | |
1328 | (point)))) | |
1329 | (t (setq begin (progn (re-search-backward "[^0-9]") | |
1330 | (forward-char 1) | |
1331 | (point))) | |
1332 | (forward-char 1) | |
1333 | (re-search-forward "[^0-9]") | |
1334 | (forward-char -1) | |
1335 | (buffer-substring begin (point))))))) | |
13b80a60 | 1336 | |
ee0155df ER |
1337 | (defun gud-call (fmt &optional arg) |
1338 | (let ((msg (gud-format-command fmt arg))) | |
1339 | (message "Command: %s" msg) | |
1340 | (sit-for 0) | |
1341 | (gud-basic-call msg))) | |
13b80a60 | 1342 | |
ee0155df ER |
1343 | (defun gud-basic-call (command) |
1344 | "Invoke the debugger COMMAND displaying source in other window." | |
1345 | (interactive) | |
1346 | (gud-set-buffer) | |
1347 | (let ((command (concat command "\n")) | |
1348 | (proc (get-buffer-process gud-comint-buffer))) | |
4b8b296e | 1349 | (or proc (error "Current buffer has no process")) |
ee0155df ER |
1350 | ;; Arrange for the current prompt to get deleted. |
1351 | (save-excursion | |
1352 | (set-buffer gud-comint-buffer) | |
1353 | (goto-char (process-mark proc)) | |
1354 | (beginning-of-line) | |
1355 | (if (looking-at comint-prompt-regexp) | |
1356 | (set-marker gud-delete-prompt-marker (point)))) | |
1357 | (process-send-string proc command))) | |
1358 | ||
1359 | (defun gud-refresh (&optional arg) | |
1360 | "Fix up a possibly garbled display, and redraw the arrow." | |
13b80a60 | 1361 | (interactive "P") |
ee0155df | 1362 | (recenter arg) |
32ab4c10 | 1363 | (or gud-last-frame (setq gud-last-frame gud-last-last-frame)) |
ee0155df | 1364 | (gud-display-frame)) |
dcec1a3b | 1365 | \f |
ee0155df ER |
1366 | ;;; Code for parsing expressions out of C code. The single entry point is |
1367 | ;;; find-c-expr, which tries to return an lvalue expression from around point. | |
1368 | ;;; | |
1369 | ;;; The rest of this file is a hacked version of gdbsrc.el by | |
1370 | ;;; Debby Ayers <ayers@asc.slb.com>, | |
1371 | ;;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx. | |
ee0155df ER |
1372 | |
1373 | (defun find-c-expr () | |
1374 | "Returns the C expr that surrounds point." | |
1375 | (interactive) | |
1376 | (save-excursion | |
1377 | (let ((p) (expr) (test-expr)) | |
1378 | (setq p (point)) | |
1379 | (setq expr (expr-cur)) | |
1380 | (setq test-expr (expr-prev)) | |
1381 | (while (expr-compound test-expr expr) | |
1382 | (setq expr (cons (car test-expr) (cdr expr))) | |
1383 | (goto-char (car expr)) | |
dcec1a3b | 1384 | (setq test-expr (expr-prev))) |
ee0155df ER |
1385 | (goto-char p) |
1386 | (setq test-expr (expr-next)) | |
1387 | (while (expr-compound expr test-expr) | |
1388 | (setq expr (cons (car expr) (cdr test-expr))) | |
1389 | (setq test-expr (expr-next)) | |
1390 | ) | |
dcec1a3b | 1391 | (buffer-substring (car expr) (cdr expr))))) |
ee0155df ER |
1392 | |
1393 | (defun expr-cur () | |
1394 | "Returns the expr that point is in; point is set to beginning of expr. | |
1395 | The expr is represented as a cons cell, where the car specifies the point in | |
1396 | the current buffer that marks the beginning of the expr and the cdr specifies | |
dcec1a3b | 1397 | the character after the end of the expr." |
ee0155df | 1398 | (let ((p (point)) (begin) (end)) |
dcec1a3b | 1399 | (expr-backward-sexp) |
ee0155df | 1400 | (setq begin (point)) |
dcec1a3b | 1401 | (expr-forward-sexp) |
ee0155df ER |
1402 | (setq end (point)) |
1403 | (if (>= p end) | |
1404 | (progn | |
1405 | (setq begin p) | |
1406 | (goto-char p) | |
dcec1a3b | 1407 | (expr-forward-sexp) |
ee0155df ER |
1408 | (setq end (point)) |
1409 | ) | |
1410 | ) | |
1411 | (goto-char begin) | |
dcec1a3b | 1412 | (cons begin end))) |
ee0155df | 1413 | |
dcec1a3b RS |
1414 | (defun expr-backward-sexp () |
1415 | "Version of `backward-sexp' that catches errors." | |
ee0155df ER |
1416 | (condition-case nil |
1417 | (backward-sexp) | |
1418 | (error t))) | |
1419 | ||
dcec1a3b RS |
1420 | (defun expr-forward-sexp () |
1421 | "Version of `forward-sexp' that catches errors." | |
ee0155df ER |
1422 | (condition-case nil |
1423 | (forward-sexp) | |
1424 | (error t))) | |
1425 | ||
1426 | (defun expr-prev () | |
1427 | "Returns the previous expr, point is set to beginning of that expr. | |
1428 | The expr is represented as a cons cell, where the car specifies the point in | |
1429 | the current buffer that marks the beginning of the expr and the cdr specifies | |
1430 | the character after the end of the expr" | |
1431 | (let ((begin) (end)) | |
dcec1a3b | 1432 | (expr-backward-sexp) |
ee0155df | 1433 | (setq begin (point)) |
dcec1a3b | 1434 | (expr-forward-sexp) |
ee0155df ER |
1435 | (setq end (point)) |
1436 | (goto-char begin) | |
1437 | (cons begin end))) | |
1438 | ||
1439 | (defun expr-next () | |
1440 | "Returns the following expr, point is set to beginning of that expr. | |
1441 | The expr is represented as a cons cell, where the car specifies the point in | |
1442 | the current buffer that marks the beginning of the expr and the cdr specifies | |
dcec1a3b | 1443 | the character after the end of the expr." |
ee0155df | 1444 | (let ((begin) (end)) |
dcec1a3b RS |
1445 | (expr-forward-sexp) |
1446 | (expr-forward-sexp) | |
ee0155df | 1447 | (setq end (point)) |
dcec1a3b | 1448 | (expr-backward-sexp) |
ee0155df | 1449 | (setq begin (point)) |
dcec1a3b | 1450 | (cons begin end))) |
ee0155df ER |
1451 | |
1452 | (defun expr-compound-sep (span-start span-end) | |
1453 | "Returns '.' for '->' & '.', returns ' ' for white space, | |
eb8c3be9 | 1454 | returns '?' for other punctuation." |
ee0155df ER |
1455 | (let ((result ? ) |
1456 | (syntax)) | |
1457 | (while (< span-start span-end) | |
1458 | (setq syntax (char-syntax (char-after span-start))) | |
1459 | (cond | |
1460 | ((= syntax ? ) t) | |
1461 | ((= syntax ?.) (setq syntax (char-after span-start)) | |
1462 | (cond | |
1463 | ((= syntax ?.) (setq result ?.)) | |
1464 | ((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>)) | |
1465 | (setq result ?.) | |
1466 | (setq span-start (+ span-start 1))) | |
1467 | (t (setq span-start span-end) | |
1468 | (setq result ??))))) | |
1469 | (setq span-start (+ span-start 1))) | |
dcec1a3b | 1470 | result)) |
ee0155df ER |
1471 | |
1472 | (defun expr-compound (first second) | |
dcec1a3b RS |
1473 | "Non-nil if concatenating FIRST and SECOND makes a single C token. |
1474 | The two exprs are represented as a cons cells, where the car | |
ee0155df | 1475 | specifies the point in the current buffer that marks the beginning of the |
dcec1a3b | 1476 | expr and the cdr specifies the character after the end of the expr. |
ee0155df ER |
1477 | Link exprs of the form: |
1478 | Expr -> Expr | |
1479 | Expr . Expr | |
1480 | Expr (Expr) | |
1481 | Expr [Expr] | |
1482 | (Expr) Expr | |
1483 | [Expr] Expr" | |
1484 | (let ((span-start (cdr first)) | |
1485 | (span-end (car second)) | |
1486 | (syntax)) | |
1487 | (setq syntax (expr-compound-sep span-start span-end)) | |
1488 | (cond | |
1489 | ((= (car first) (car second)) nil) | |
1490 | ((= (cdr first) (cdr second)) nil) | |
1491 | ((= syntax ?.) t) | |
1492 | ((= syntax ? ) | |
1493 | (setq span-start (char-after (- span-start 1))) | |
1494 | (setq span-end (char-after span-end)) | |
1495 | (cond | |
1496 | ((= span-start ?) ) t ) | |
1497 | ((= span-start ?] ) t ) | |
1498 | ((= span-end ?( ) t ) | |
1499 | ((= span-end ?[ ) t ) | |
1500 | (t nil)) | |
1501 | ) | |
dcec1a3b | 1502 | (t nil)))) |
5b08a462 | 1503 | |
96f4e22e RM |
1504 | (provide 'gud) |
1505 | ||
f961a17c | 1506 | ;;; gud.el ends here |