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c3fd0eea | 1 | ;;; gud.el --- Grand Unified Debugger mode for running GDB and other debuggers |
f961a17c | 2 | |
ee0155df | 3 | ;; Author: Eric S. Raymond <esr@snark.thyrsus.com> |
8ba194fc | 4 | ;; Maintainer: FSF |
f961a17c ER |
5 | ;; Keywords: unix, tools |
6 | ||
e78e1cd1 | 7 | ;; Copyright (C) 1992,93,94,95,96,1998,2000,2002 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 | |
f5851398 | 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13b80a60 ER |
19 | ;; GNU General Public License for more details. |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
f5851398 | 22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
b578f267 EN |
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> |
f4b643a1 | 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 |
f4b643a1 | 36 | ;; a menu. Brian D. Carlstrom <bdc@ai.mit.edu> combined the IRIX kluge with |
f5851398 | 37 | ;; the gud-xdb-directories hack producing gud-dbx-directories. Derek L. Davies |
c3fd0eea | 38 | ;; <ddavies@world.std.com> added support for jdb (Java debugger.) |
13b80a60 | 39 | |
f961a17c ER |
40 | ;;; Code: |
41 | ||
13b80a60 | 42 | (require 'comint) |
e8a57935 | 43 | (require 'etags) |
13b80a60 | 44 | |
ee0155df | 45 | ;; ====================================================================== |
5b08a462 | 46 | ;; GUD commands must be visible in C buffers visited by GUD |
ee0155df | 47 | |
69c1dd37 | 48 | (defgroup gud nil |
f4b643a1 | 49 | "Grand Unified Debugger mode for gdb and other debuggers under Emacs. |
d2d23393 | 50 | Supported debuggers include gdb, sdb, dbx, xdb, perldb, pdb (Python), and jdb." |
69c1dd37 RS |
51 | :group 'unix |
52 | :group 'tools) | |
53 | ||
54 | ||
55 | (defcustom gud-key-prefix "\C-x\C-a" | |
56 | "Prefix of all GUD commands valid in C buffers." | |
57 | :type 'string | |
58 | :group 'gud) | |
ee0155df | 59 | |
5b08a462 | 60 | (global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh) |
16776e8d | 61 | (define-key ctl-x-map " " 'gud-break) ;; backward compatibility hack |
ee0155df | 62 | |
ee97eac3 RS |
63 | (defvar gud-marker-filter nil) |
64 | (put 'gud-marker-filter 'permanent-local t) | |
65 | (defvar gud-find-file nil) | |
66 | (put 'gud-find-file 'permanent-local t) | |
67 | ||
ee97eac3 RS |
68 | (defun gud-marker-filter (&rest args) |
69 | (apply gud-marker-filter args)) | |
70 | ||
c157af51 SM |
71 | (defvar gud-minor-mode nil) |
72 | (put 'gud-minor-mode 'permanent-local t) | |
73 | ||
74 | (defun gud-symbol (sym &optional soft minor-mode) | |
75 | "Return the symbol used for SYM in MINOR-MODE. | |
76 | MINOR-MODE defaults to `gud-minor-mode. | |
77 | The symbol returned is `gud-<MINOR-MODE>-<SYM>'. | |
78 | If SOFT is non-nil, returns nil if the symbol doesn't already exist." | |
79 | (unless (or minor-mode gud-minor-mode) (error "Gud internal error")) | |
80 | (funcall (if soft 'intern-soft 'intern) | |
81 | (format "gud-%s-%s" (or minor-mode gud-minor-mode) sym))) | |
82 | ||
83 | (defun gud-val (sym &optional minor-mode) | |
84 | "Return the value of `gud-symbol' SYM. Default to nil." | |
85 | (let ((sym (gud-symbol sym t minor-mode))) | |
86 | (if (boundp sym) (symbol-value sym)))) | |
87 | ||
ee97eac3 RS |
88 | (defun gud-find-file (file) |
89 | ;; Don't get confused by double slashes in the name that comes from GDB. | |
90 | (while (string-match "//+" file) | |
91 | (setq file (replace-match "/" t t file))) | |
c157af51 SM |
92 | (let ((minor-mode gud-minor-mode) |
93 | (buf (funcall gud-find-file file))) | |
94 | (when buf | |
95 | ;; Copy `gud-minor-mode' to the found buffer to turn on the menu. | |
96 | (with-current-buffer buf | |
97 | (set (make-local-variable 'gud-minor-mode) minor-mode)) | |
98 | buf))) | |
99 | ||
100 | (easy-mmode-defmap gud-menu-map | |
101 | '(([refresh] "Refresh" . gud-refresh) | |
102 | ([remove] "Remove Breakpoint" . gud-remove) | |
103 | ([tbreak] menu-item "Temporary Breakpoint" gud-tbreak | |
104 | :enable (memq gud-minor-mode '(gdb sdb xdb))) | |
105 | ([break] "Set Breakpoint" . gud-break) | |
106 | ([up] menu-item "Up Stack" gud-up | |
2ef4e909 | 107 | :enable (memq gud-minor-mode '(gdb dbx xdb jdb))) |
c157af51 | 108 | ([down] menu-item "Down Stack" gud-down |
2ef4e909 | 109 | :enable (memq gud-minor-mode '(gdb dbx xdb jdb))) |
c157af51 SM |
110 | ([print] "Print Expression" . gud-print) |
111 | ([finish] menu-item "Finish Function" gud-finish | |
2ef4e909 | 112 | :enable (memq gud-minor-mode '(gdb xdb jdb))) |
c157af51 SM |
113 | ([stepi] "Step Instruction" . gud-stepi) |
114 | ([step] "Step Line" . gud-step) | |
115 | ([next] "Next Line" . gud-next) | |
116 | ([cont] "Continue" . gud-cont)) | |
117 | "Menu for `gud-mode'." | |
118 | :name "Gud") | |
119 | ||
120 | (easy-mmode-defmap gud-minor-mode-map | |
121 | `(([menu-bar debug] . ("Gud" . ,gud-menu-map))) | |
122 | "Map used in visited files.") | |
123 | ||
124 | (let ((m (assq 'gud-minor-mode minor-mode-map-alist))) | |
125 | (if m (setcdr m gud-minor-mode-map) | |
126 | (push (cons 'gud-minor-mode gud-minor-mode-map) minor-mode-map-alist))) | |
127 | ||
128 | (defvar gud-mode-map | |
129 | ;; Will inherit from comint-mode via define-derived-mode. | |
130 | (make-sparse-keymap) | |
131 | "`gud-mode' keymap.") | |
575661b1 | 132 | \f |
ee0155df ER |
133 | ;; ====================================================================== |
134 | ;; command definition | |
13b80a60 ER |
135 | |
136 | ;; This macro is used below to define some basic debugger interface commands. | |
f961a17c | 137 | ;; Of course you may use `gud-def' with any other debugger command, including |
6bde8427 JB |
138 | ;; user defined ones. |
139 | ||
140 | ;; A macro call like (gud-def FUNC NAME KEY DOC) expands to a form | |
141 | ;; which defines FUNC to send the command NAME to the debugger, gives | |
ee0155df | 142 | ;; it the docstring DOC, and binds that function to KEY in the GUD |
f5851398 | 143 | ;; major mode. The function is also bound in the global keymap with the |
5b08a462 | 144 | ;; GUD prefix. |
ee0155df ER |
145 | |
146 | (defmacro gud-def (func cmd key &optional doc) | |
147 | "Define FUNC to be a command sending STR and bound to KEY, with | |
148 | optional doc string DOC. Certain %-escapes in the string arguments | |
149 | are interpreted specially if present. These are: | |
150 | ||
f4b643a1 | 151 | %f name (without directory) of current source file. |
73739399 | 152 | %F name (without directory or extension) of current source file. |
f4b643a1 | 153 | %d directory of current source file. |
ee0155df ER |
154 | %l number of current source line |
155 | %e text of the C lvalue or function-call expression surrounding point. | |
156 | %a text of the hexadecimal address surrounding point | |
157 | %p prefix argument to the command (if any) as a number | |
158 | ||
5b08a462 ER |
159 | The `current' source file is the file of the current buffer (if |
160 | we're in a C file) or the source file current at the last break or | |
161 | step (if we're in the GUD buffer). | |
162 | The `current' line is that of the current buffer (if we're in a | |
163 | source file) or the source line number at the last break or step (if | |
164 | we're in the GUD buffer)." | |
ee0155df ER |
165 | (list 'progn |
166 | (list 'defun func '(arg) | |
167 | (or doc "") | |
168 | '(interactive "p") | |
169 | (list 'gud-call cmd 'arg)) | |
170 | (if key | |
dd8e46c7 RS |
171 | (list 'define-key |
172 | '(current-local-map) | |
173 | (concat "\C-c" key) | |
174 | (list 'quote func))) | |
175 | (if key | |
176 | (list 'global-set-key | |
2352cbea | 177 | (list 'concat 'gud-key-prefix key) |
dd8e46c7 | 178 | (list 'quote func))))) |
13b80a60 | 179 | |
f4b643a1 RS |
180 | ;; Where gud-display-frame should put the debugging arrow; a cons of |
181 | ;; (filename . line-number). This is set by the marker-filter, which scans | |
182 | ;; the debugger's output for indications of the current program counter. | |
d840a865 JB |
183 | (defvar gud-last-frame nil) |
184 | ||
32ab4c10 JB |
185 | ;; Used by gud-refresh, which should cause gud-display-frame to redisplay |
186 | ;; the last frame, even if it's been called before and gud-last-frame has | |
187 | ;; been set to nil. | |
7447c37a | 188 | (defvar gud-last-last-frame nil) |
32ab4c10 | 189 | |
ee0155df ER |
190 | ;; All debugger-specific information is collected here. |
191 | ;; Here's how it works, in case you ever need to add a debugger to the mode. | |
13b80a60 ER |
192 | ;; |
193 | ;; Each entry must define the following at startup: | |
194 | ;; | |
195 | ;;<name> | |
196 | ;; comint-prompt-regexp | |
a223b10d | 197 | ;; gud-<name>-massage-args |
13b80a60 | 198 | ;; gud-<name>-marker-filter |
ee0155df | 199 | ;; gud-<name>-find-file |
13b80a60 | 200 | ;; |
a223b10d RM |
201 | ;; The job of the massage-args method is to modify the given list of |
202 | ;; debugger arguments before running the debugger. | |
10a4c11f JB |
203 | ;; |
204 | ;; The job of the marker-filter method is to detect file/line markers in | |
205 | ;; strings and set the global gud-last-frame to indicate what display | |
206 | ;; action (if any) should be triggered by the marker. Note that only | |
eb8c3be9 | 207 | ;; whatever the method *returns* is displayed in the buffer; thus, you |
10a4c11f JB |
208 | ;; can filter the debugger's output, interpreting some and passing on |
209 | ;; the rest. | |
210 | ;; | |
ee0155df | 211 | ;; The job of the find-file method is to visit and return the buffer indicated |
f5851398 | 212 | ;; by the car of gud-tag-frame. This may be a file name, a tag name, or |
c157af51 | 213 | ;; something else. |
575661b1 | 214 | \f |
e9a918f9 EL |
215 | ;; ====================================================================== |
216 | ;; speedbar support functions and variables. | |
acb50e3c KH |
217 | (eval-when-compile (require 'speedbar)) |
218 | ||
e9a918f9 EL |
219 | (defvar gud-last-speedbar-buffer nil |
220 | "The last GUD buffer used.") | |
221 | ||
222 | (defvar gud-last-speedbar-stackframe nil | |
223 | "Description of the currently displayed GUD stack. | |
224 | t means that there is no stack, and we are in display-file mode.") | |
225 | ||
acb50e3c KH |
226 | (defvar gud-speedbar-key-map nil |
227 | "Keymap used when in the buffers display mode.") | |
228 | ||
229 | (defun gud-install-speedbar-variables () | |
230 | "Install those variables used by speedbar to enhance gud/gdb." | |
231 | (if gud-speedbar-key-map | |
232 | nil | |
233 | (setq gud-speedbar-key-map (speedbar-make-specialized-keymap)) | |
234 | ||
235 | (define-key gud-speedbar-key-map "j" 'speedbar-edit-line) | |
236 | (define-key gud-speedbar-key-map "e" 'speedbar-edit-line) | |
237 | (define-key gud-speedbar-key-map "\C-m" 'speedbar-edit-line))) | |
238 | ||
e9a918f9 EL |
239 | (defvar gud-speedbar-menu-items |
240 | ;; Note to self. Add expand, and turn off items when not available. | |
241 | '(["Jump to stack frame" speedbar-edit-line t]) | |
110c171f | 242 | "Additional menu items to add to the speedbar frame.") |
e9a918f9 | 243 | |
acb50e3c KH |
244 | ;; Make sure our special speedbar mode is loaded |
245 | (if (featurep 'speedbar) | |
246 | (gud-install-speedbar-variables) | |
247 | (add-hook 'speedbar-load-hook 'gud-install-speedbar-variables)) | |
248 | ||
e9a918f9 EL |
249 | (defun gud-speedbar-buttons (buffer) |
250 | "Create a speedbar display based on the current state of GUD. | |
251 | If the GUD BUFFER is not running a supported debugger, then turn | |
252 | off the specialized speedbar mode." | |
253 | (if (and (save-excursion (goto-char (point-min)) | |
254 | (looking-at "Current Stack")) | |
255 | (equal gud-last-last-frame gud-last-speedbar-stackframe)) | |
256 | nil | |
257 | (setq gud-last-speedbar-buffer buffer) | |
258 | (let* ((ff (save-excursion (set-buffer buffer) gud-find-file)) | |
259 | ;;(lf (save-excursion (set-buffer buffer) gud-last-last-frame)) | |
260 | (frames | |
261 | (cond ((eq ff 'gud-gdb-find-file) | |
262 | (gud-gdb-get-stackframe buffer) | |
263 | ) | |
264 | ;; Add more debuggers here! | |
265 | (t | |
266 | (speedbar-remove-localized-speedbar-support buffer) | |
267 | nil)))) | |
268 | (erase-buffer) | |
269 | (if (not frames) | |
270 | (insert "No Stack frames\n") | |
271 | (insert "Current Stack:\n")) | |
272 | (while frames | |
273 | (insert (nth 1 (car frames)) ":\n") | |
274 | (if (= (length (car frames)) 2) | |
275 | (progn | |
276 | ; (speedbar-insert-button "[?]" | |
277 | ; 'speedbar-button-face | |
278 | ; nil nil nil t) | |
279 | (speedbar-insert-button (car (car frames)) | |
280 | 'speedbar-directory-face | |
281 | nil nil nil t)) | |
282 | ; (speedbar-insert-button "[+]" | |
283 | ; 'speedbar-button-face | |
284 | ; 'speedbar-highlight-face | |
285 | ; 'gud-gdb-get-scope-data | |
286 | ; (car frames) t) | |
287 | (speedbar-insert-button (car (car frames)) | |
288 | 'speedbar-file-face | |
289 | 'speedbar-highlight-face | |
290 | (cond ((eq ff 'gud-gdb-find-file) | |
291 | 'gud-gdb-goto-stackframe) | |
55535639 | 292 | (t (error "Should never be here"))) |
e9a918f9 EL |
293 | (car frames) t)) |
294 | (setq frames (cdr frames))) | |
295 | ; (let ((selected-frame | |
296 | ; (cond ((eq ff 'gud-gdb-find-file) | |
297 | ; (gud-gdb-selected-frame-info buffer)) | |
55535639 | 298 | ; (t (error "Should never be here")))))) |
e9a918f9 EL |
299 | ) |
300 | (setq gud-last-speedbar-stackframe gud-last-last-frame))) | |
301 | ||
302 | \f | |
13b80a60 ER |
303 | ;; ====================================================================== |
304 | ;; gdb functions | |
305 | ||
f6376199 JB |
306 | ;;; History of argument lists passed to gdb. |
307 | (defvar gud-gdb-history nil) | |
308 | ||
a223b10d | 309 | (defun gud-gdb-massage-args (file args) |
dfbd82a6 | 310 | (cons "-fullname" args)) |
13b80a60 | 311 | |
dfb7d195 | 312 | (defvar gud-gdb-marker-regexp |
1ac95fab RS |
313 | ;; This used to use path-separator instead of ":"; |
314 | ;; however, we found that on both Windows 32 and MSDOS | |
315 | ;; a colon is correct here. | |
15cf3ecc | 316 | (concat "\032\032\\(.:?[^" ":" "\n]*\\)" ":" |
1ac95fab | 317 | "\\([0-9]*\\)" ":" ".*\n")) |
dfb7d195 | 318 | |
768c29d0 JB |
319 | ;; There's no guarantee that Emacs will hand the filter the entire |
320 | ;; marker at once; it could be broken up across several strings. We | |
321 | ;; might even receive a big chunk with several markers in it. If we | |
322 | ;; receive a chunk of text which looks like it might contain the | |
323 | ;; beginning of a marker, we save it here between calls to the | |
324 | ;; filter. | |
f266485d | 325 | (defvar gud-marker-acc "") |
0d29cfe9 | 326 | (make-variable-buffer-local 'gud-marker-acc) |
768c29d0 | 327 | |
ee0155df | 328 | (defun gud-gdb-marker-filter (string) |
bed6a98d RS |
329 | (setq gud-marker-acc (concat gud-marker-acc string)) |
330 | (let ((output "")) | |
331 | ||
332 | ;; Process all the complete markers in this chunk. | |
dfb7d195 | 333 | (while (string-match gud-gdb-marker-regexp gud-marker-acc) |
bed6a98d RS |
334 | (setq |
335 | ||
336 | ;; Extract the frame position from the marker. | |
337 | gud-last-frame | |
338 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
339 | (string-to-int (substring gud-marker-acc | |
340 | (match-beginning 2) | |
341 | (match-end 2)))) | |
342 | ||
343 | ;; Append any text before the marker to the output we're going | |
344 | ;; to return - we don't include the marker in this text. | |
345 | output (concat output | |
346 | (substring gud-marker-acc 0 (match-beginning 0))) | |
347 | ||
348 | ;; Set the accumulator to the remaining text. | |
349 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
350 | ||
351 | ;; Does the remaining text look like it might end with the | |
352 | ;; beginning of another marker? If it does, then keep it in | |
f5851398 | 353 | ;; gud-marker-acc until we receive the rest of it. Since we |
bed6a98d RS |
354 | ;; know the full marker regexp above failed, it's pretty simple to |
355 | ;; test for marker starts. | |
356 | (if (string-match "\032.*\\'" gud-marker-acc) | |
357 | (progn | |
358 | ;; Everything before the potential marker start can be output. | |
359 | (setq output (concat output (substring gud-marker-acc | |
360 | 0 (match-beginning 0)))) | |
361 | ||
362 | ;; Everything after, we save, to combine with later input. | |
363 | (setq gud-marker-acc | |
364 | (substring gud-marker-acc (match-beginning 0)))) | |
365 | ||
366 | (setq output (concat output gud-marker-acc) | |
367 | gud-marker-acc "")) | |
368 | ||
369 | output)) | |
13b80a60 | 370 | |
ee0155df | 371 | (defun gud-gdb-find-file (f) |
c157af51 SM |
372 | (find-file-noselect f 'nowarn)) |
373 | ||
374 | (easy-mmode-defmap gud-minibuffer-local-map | |
375 | '(("\C-i" . comint-dynamic-complete-filename)) | |
376 | "Keymap for minibuffer prompting of gud startup command." | |
377 | :inherit minibuffer-local-map) | |
378 | ||
379 | (defun gud-query-cmdline (minor-mode &optional init) | |
380 | (let* ((hist-sym (gud-symbol 'history nil minor-mode)) | |
381 | (cmd-name (gud-val 'command-name minor-mode))) | |
382 | (unless (boundp hist-sym) (set hist-sym nil)) | |
383 | (read-from-minibuffer | |
384 | (format "Run %s (like this): " minor-mode) | |
385 | (or (car-safe (symbol-value hist-sym)) | |
386 | (concat (or cmd-name (symbol-name minor-mode)) " " init)) | |
387 | gud-minibuffer-local-map nil | |
388 | hist-sym))) | |
e886137a | 389 | |
10a4c11f | 390 | ;;;###autoload |
a223b10d | 391 | (defun gdb (command-line) |
13b80a60 ER |
392 | "Run gdb on program FILE in buffer *gud-FILE*. |
393 | The directory containing FILE becomes the initial working directory | |
394 | and source-file directory for your debugger." | |
c157af51 | 395 | (interactive (list (gud-query-cmdline 'gdb))) |
ee0155df | 396 | |
ee97eac3 RS |
397 | (gud-common-init command-line 'gud-gdb-massage-args |
398 | 'gud-gdb-marker-filter 'gud-gdb-find-file) | |
c157af51 | 399 | (set (make-local-variable 'gud-minor-mode) 'gdb) |
5b08a462 | 400 | |
dd8e46c7 | 401 | (gud-def gud-break "break %f:%l" "\C-b" "Set breakpoint at current line.") |
2fb419e1 | 402 | (gud-def gud-tbreak "tbreak %f:%l" "\C-t" "Set temporary breakpoint at current line.") |
23a3aa0a | 403 | (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line") |
f5851398 | 404 | (gud-def gud-step "step %p" "\C-s" "Step one source line with display.") |
dd8e46c7 | 405 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") |
f5851398 EZ |
406 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") |
407 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
408 | (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
38eba485 RS |
409 | (gud-def gud-jump "tbreak %f:%l\njump %f:%l" "\C-j" "Relocate execution address to line at point in source buffer.") |
410 | ||
f5851398 EZ |
411 | (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") |
412 | (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
dd8e46c7 | 413 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 414 | |
0e0de659 | 415 | (local-set-key "\C-i" 'gud-gdb-complete-command) |
b3ede706 KH |
416 | (local-set-key [menu-bar debug tbreak] '("Temporary Breakpoint" . gud-tbreak)) |
417 | (local-set-key [menu-bar debug finish] '("Finish Function" . gud-finish)) | |
418 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
419 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
13b80a60 | 420 | (setq comint-prompt-regexp "^(.*gdb[+]?) *") |
f54877b2 | 421 | (setq paragraph-start comint-prompt-regexp) |
13b80a60 ER |
422 | (run-hooks 'gdb-mode-hook) |
423 | ) | |
424 | ||
0e0de659 RS |
425 | ;; One of the nice features of GDB is its impressive support for |
426 | ;; context-sensitive command completion. We preserve that feature | |
427 | ;; in the GUD buffer by using a GDB command designed just for Emacs. | |
428 | ||
429 | ;; The completion process filter indicates when it is finished. | |
430 | (defvar gud-gdb-complete-in-progress) | |
431 | ||
432 | ;; Since output may arrive in fragments we accumulate partials strings here. | |
433 | (defvar gud-gdb-complete-string) | |
434 | ||
435 | ;; We need to know how much of the completion to chop off. | |
436 | (defvar gud-gdb-complete-break) | |
437 | ||
438 | ;; The completion list is constructed by the process filter. | |
439 | (defvar gud-gdb-complete-list) | |
440 | ||
30df2a53 RS |
441 | (defvar gud-comint-buffer nil) |
442 | ||
0e0de659 RS |
443 | (defun gud-gdb-complete-command () |
444 | "Perform completion on the GDB command preceding point. | |
445 | This is implemented using the GDB `complete' command which isn't | |
446 | available with older versions of GDB." | |
447 | (interactive) | |
448 | (let* ((end (point)) | |
01d8967d | 449 | (command (buffer-substring (comint-line-beginning-position) end)) |
0e0de659 RS |
450 | command-word) |
451 | ;; Find the word break. This match will always succeed. | |
452 | (string-match "\\(\\`\\| \\)\\([^ ]*\\)\\'" command) | |
453 | (setq gud-gdb-complete-break (match-beginning 2) | |
454 | command-word (substring command gud-gdb-complete-break)) | |
ee97eac3 RS |
455 | ;; Temporarily install our filter function. |
456 | (let ((gud-marker-filter 'gud-gdb-complete-filter)) | |
457 | ;; Issue the command to GDB. | |
458 | (gud-basic-call (concat "complete " command)) | |
459 | (setq gud-gdb-complete-in-progress t | |
460 | gud-gdb-complete-string nil | |
461 | gud-gdb-complete-list nil) | |
462 | ;; Slurp the output. | |
463 | (while gud-gdb-complete-in-progress | |
464 | (accept-process-output (get-buffer-process gud-comint-buffer)))) | |
0e0de659 RS |
465 | ;; Protect against old versions of GDB. |
466 | (and gud-gdb-complete-list | |
467 | (string-match "^Undefined command: \"complete\"" | |
468 | (car gud-gdb-complete-list)) | |
55535639 | 469 | (error "This version of GDB doesn't support the `complete' command")) |
0e0de659 RS |
470 | ;; Sort the list like readline. |
471 | (setq gud-gdb-complete-list | |
472 | (sort gud-gdb-complete-list (function string-lessp))) | |
473 | ;; Remove duplicates. | |
474 | (let ((first gud-gdb-complete-list) | |
475 | (second (cdr gud-gdb-complete-list))) | |
476 | (while second | |
477 | (if (string-equal (car first) (car second)) | |
478 | (setcdr first (setq second (cdr second))) | |
479 | (setq first second | |
480 | second (cdr second))))) | |
fd63b4f4 KH |
481 | ;; Add a trailing single quote if there is a unique completion |
482 | ;; and it contains an odd number of unquoted single quotes. | |
483 | (and (= (length gud-gdb-complete-list) 1) | |
484 | (let ((str (car gud-gdb-complete-list)) | |
485 | (pos 0) | |
486 | (count 0)) | |
487 | (while (string-match "\\([^'\\]\\|\\\\'\\)*'" str pos) | |
488 | (setq count (1+ count) | |
489 | pos (match-end 0))) | |
490 | (and (= (mod count 2) 1) | |
491 | (setq gud-gdb-complete-list (list (concat str "'")))))) | |
0e0de659 RS |
492 | ;; Let comint handle the rest. |
493 | (comint-dynamic-simple-complete command-word gud-gdb-complete-list))) | |
f4b643a1 | 494 | |
0e0de659 RS |
495 | ;; The completion process filter is installed temporarily to slurp the |
496 | ;; output of GDB up to the next prompt and build the completion list. | |
497 | (defun gud-gdb-complete-filter (string) | |
498 | (setq string (concat gud-gdb-complete-string string)) | |
499 | (while (string-match "\n" string) | |
500 | (setq gud-gdb-complete-list | |
501 | (cons (substring string gud-gdb-complete-break (match-beginning 0)) | |
502 | gud-gdb-complete-list)) | |
503 | (setq string (substring string (match-end 0)))) | |
e9a918f9 EL |
504 | (if (string-match comint-prompt-regexp string) |
505 | (progn | |
506 | (setq gud-gdb-complete-in-progress nil) | |
507 | string) | |
508 | (progn | |
509 | (setq gud-gdb-complete-string string) | |
510 | ""))) | |
511 | ||
512 | ;; gdb speedbar functions | |
513 | ||
514 | (defun gud-gdb-goto-stackframe (text token indent) | |
515 | "Goto the stackframe described by TEXT, TOKEN, and INDENT." | |
516 | (speedbar-with-attached-buffer | |
517 | (gud-basic-call (concat "frame " (nth 1 token))) | |
518 | (sit-for 1))) | |
519 | ||
520 | (defvar gud-gdb-fetched-stack-frame nil | |
521 | "Stack frames we are fetching from GDB.") | |
522 | ||
523 | (defvar gud-gdb-fetched-stack-frame-list nil | |
524 | "List of stack frames we are fetching from GDB.") | |
525 | ||
526 | ;(defun gud-gdb-get-scope-data (text token indent) | |
527 | ; ;; checkdoc-params: (indent) | |
528 | ; "Fetch data associated with a stack frame, and expand/contract it. | |
529 | ;Data to do this is retrieved from TEXT and TOKEN." | |
530 | ; (let ((args nil) (scope nil)) | |
531 | ; (gud-gdb-run-command-fetch-lines "info args") | |
532 | ; | |
533 | ; (gud-gdb-run-command-fetch-lines "info local") | |
534 | ; | |
535 | ; )) | |
536 | ||
537 | (defun gud-gdb-get-stackframe (buffer) | |
538 | "Extract the current stack frame out of the GUD GDB BUFFER." | |
539 | (let ((newlst nil) | |
540 | (gud-gdb-fetched-stack-frame-list nil)) | |
541 | (gud-gdb-run-command-fetch-lines "backtrace" buffer) | |
acb50e3c KH |
542 | (if (and (car gud-gdb-fetched-stack-frame-list) |
543 | (string-match "No stack" (car gud-gdb-fetched-stack-frame-list))) | |
e9a918f9 EL |
544 | ;; Go into some other mode??? |
545 | nil | |
546 | (while gud-gdb-fetched-stack-frame-list | |
547 | (let ((e (car gud-gdb-fetched-stack-frame-list)) | |
548 | (name nil) (num nil)) | |
549 | (if (not (or | |
acb50e3c KH |
550 | (string-match "^#\\([0-9]+\\) +[0-9a-fx]+ in \\([:0-9a-zA-Z_]+\\) (" e) |
551 | (string-match "^#\\([0-9]+\\) +\\([:0-9a-zA-Z_]+\\) (" e))) | |
e9a918f9 EL |
552 | (if (not (string-match |
553 | "at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e)) | |
554 | nil | |
555 | (setcar newlst | |
556 | (list (nth 0 (car newlst)) | |
557 | (nth 1 (car newlst)) | |
558 | (match-string 1 e) | |
559 | (match-string 2 e)))) | |
560 | (setq num (match-string 1 e) | |
561 | name (match-string 2 e)) | |
562 | (setq newlst | |
563 | (cons | |
564 | (if (string-match | |
565 | "at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e) | |
566 | (list name num (match-string 1 e) | |
567 | (match-string 2 e)) | |
568 | (list name num)) | |
569 | newlst)))) | |
570 | (setq gud-gdb-fetched-stack-frame-list | |
571 | (cdr gud-gdb-fetched-stack-frame-list))) | |
572 | (nreverse newlst)))) | |
573 | ||
574 | ;(defun gud-gdb-selected-frame-info (buffer) | |
575 | ; "Learn GDB information for the currently selected stack frame in BUFFER." | |
576 | ; ) | |
577 | ||
578 | (defun gud-gdb-run-command-fetch-lines (command buffer) | |
579 | "Run COMMAND, and return when `gud-gdb-fetched-stack-frame-list' is full. | |
580 | BUFFER is the GUD buffer in which to run the command." | |
581 | (save-excursion | |
582 | (set-buffer buffer) | |
583 | (if (save-excursion | |
584 | (goto-char (point-max)) | |
d2d1851b | 585 | (forward-line 0) |
e9a918f9 EL |
586 | (not (looking-at comint-prompt-regexp))) |
587 | nil | |
588 | ;; Much of this copied from GDB complete, but I'm grabbing the stack | |
589 | ;; frame instead. | |
590 | (let ((gud-marker-filter 'gud-gdb-speedbar-stack-filter)) | |
591 | ;; Issue the command to GDB. | |
592 | (gud-basic-call command) | |
593 | (setq gud-gdb-complete-in-progress t ;; use this flag for our purposes. | |
594 | gud-gdb-complete-string nil | |
595 | gud-gdb-complete-list nil) | |
596 | ;; Slurp the output. | |
597 | (while gud-gdb-complete-in-progress | |
598 | (accept-process-output (get-buffer-process gud-comint-buffer))) | |
599 | (setq gud-gdb-fetched-stack-frame nil | |
600 | gud-gdb-fetched-stack-frame-list | |
601 | (nreverse gud-gdb-fetched-stack-frame-list)))))) | |
f4b643a1 | 602 | |
e9a918f9 EL |
603 | (defun gud-gdb-speedbar-stack-filter (string) |
604 | ;; checkdoc-params: (string) | |
605 | "Filter used to read in the current GDB stack." | |
606 | (setq string (concat gud-gdb-fetched-stack-frame string)) | |
607 | (while (string-match "\n" string) | |
608 | (setq gud-gdb-fetched-stack-frame-list | |
609 | (cons (substring string 0 (match-beginning 0)) | |
610 | gud-gdb-fetched-stack-frame-list)) | |
611 | (setq string (substring string (match-end 0)))) | |
0e0de659 RS |
612 | (if (string-match comint-prompt-regexp string) |
613 | (progn | |
614 | (setq gud-gdb-complete-in-progress nil) | |
615 | string) | |
616 | (progn | |
617 | (setq gud-gdb-complete-string string) | |
618 | ""))) | |
619 | ||
575661b1 | 620 | \f |
13b80a60 ER |
621 | ;; ====================================================================== |
622 | ;; sdb functions | |
623 | ||
f6376199 JB |
624 | ;;; History of argument lists passed to sdb. |
625 | (defvar gud-sdb-history nil) | |
626 | ||
ee0155df ER |
627 | (defvar gud-sdb-needs-tags (not (file-exists-p "/var")) |
628 | "If nil, we're on a System V Release 4 and don't need the tags hack.") | |
629 | ||
630 | (defvar gud-sdb-lastfile nil) | |
631 | ||
dfbd82a6 | 632 | (defun gud-sdb-massage-args (file args) args) |
13b80a60 | 633 | |
ee0155df | 634 | (defun gud-sdb-marker-filter (string) |
7f629252 RS |
635 | (setq gud-marker-acc |
636 | (if gud-marker-acc (concat gud-marker-acc string) string)) | |
637 | (let (start) | |
638 | ;; Process all complete markers in this chunk | |
f4b643a1 RS |
639 | (while |
640 | (cond | |
7f629252 | 641 | ;; System V Release 3.2 uses this format |
bcdef904 | 642 | ((string-match "\\(^\\|\n\\)\\*?\\(0x\\w* in \\)?\\([^:\n]*\\):\\([0-9]*\\):.*\n" |
7f629252 RS |
643 | gud-marker-acc start) |
644 | (setq gud-last-frame | |
645 | (cons | |
bcdef904 | 646 | (substring gud-marker-acc (match-beginning 3) (match-end 3)) |
f4b643a1 | 647 | (string-to-int |
bcdef904 | 648 | (substring gud-marker-acc (match-beginning 4) (match-end 4)))))) |
7f629252 | 649 | ;; System V Release 4.0 quite often clumps two lines together |
f4b643a1 | 650 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n\\([0-9]+\\):" |
7f629252 RS |
651 | gud-marker-acc start) |
652 | (setq gud-sdb-lastfile | |
653 | (substring gud-marker-acc (match-beginning 2) (match-end 2))) | |
654 | (setq gud-last-frame | |
655 | (cons | |
656 | gud-sdb-lastfile | |
f4b643a1 | 657 | (string-to-int |
7f629252 | 658 | (substring gud-marker-acc (match-beginning 3) (match-end 3)))))) |
f4b643a1 | 659 | ;; System V Release 4.0 |
7f629252 RS |
660 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n" |
661 | gud-marker-acc start) | |
662 | (setq gud-sdb-lastfile | |
663 | (substring gud-marker-acc (match-beginning 2) (match-end 2)))) | |
664 | ((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):" | |
665 | gud-marker-acc start)) | |
666 | (setq gud-last-frame | |
667 | (cons | |
668 | gud-sdb-lastfile | |
f4b643a1 | 669 | (string-to-int |
7f629252 | 670 | (substring gud-marker-acc (match-beginning 1) (match-end 1)))))) |
f4b643a1 | 671 | (t |
7f629252 RS |
672 | (setq gud-sdb-lastfile nil))) |
673 | (setq start (match-end 0))) | |
674 | ||
675 | ;; Search for the last incomplete line in this chunk | |
676 | (while (string-match "\n" gud-marker-acc start) | |
677 | (setq start (match-end 0))) | |
678 | ||
679 | ;; If we have an incomplete line, store it in gud-marker-acc. | |
bcdef904 | 680 | (setq gud-marker-acc (substring gud-marker-acc (or start 0)))) |
13b80a60 ER |
681 | string) |
682 | ||
ee0155df | 683 | (defun gud-sdb-find-file (f) |
c157af51 | 684 | (if gud-sdb-needs-tags (find-tag-noselect f) (find-file-noselect f))) |
13b80a60 | 685 | |
10a4c11f | 686 | ;;;###autoload |
a223b10d | 687 | (defun sdb (command-line) |
13b80a60 ER |
688 | "Run sdb on program FILE in buffer *gud-FILE*. |
689 | The directory containing FILE becomes the initial working directory | |
690 | and source-file directory for your debugger." | |
c157af51 SM |
691 | (interactive (list (gud-query-cmdline 'sdb))) |
692 | ||
ee0155df | 693 | (if (and gud-sdb-needs-tags |
e290aebb RS |
694 | (not (and (boundp 'tags-file-name) |
695 | (stringp tags-file-name) | |
696 | (file-exists-p tags-file-name)))) | |
55535639 | 697 | (error "The sdb support requires a valid tags table to work")) |
13b80a60 | 698 | |
ee97eac3 RS |
699 | (gud-common-init command-line 'gud-sdb-massage-args |
700 | 'gud-sdb-marker-filter 'gud-sdb-find-file) | |
c157af51 | 701 | (set (make-local-variable 'gud-minor-mode) 'sdb) |
5b08a462 | 702 | |
dd8e46c7 RS |
703 | (gud-def gud-break "%l b" "\C-b" "Set breakpoint at current line.") |
704 | (gud-def gud-tbreak "%l c" "\C-t" "Set temporary breakpoint at current line.") | |
705 | (gud-def gud-remove "%l d" "\C-d" "Remove breakpoint at current line") | |
706 | (gud-def gud-step "s %p" "\C-s" "Step one source line with display.") | |
707 | (gud-def gud-stepi "i %p" "\C-i" "Step one instruction with display.") | |
708 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
709 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
710 | (gud-def gud-print "%e/" "\C-p" "Evaluate C expression at point.") | |
13b80a60 | 711 | |
6bde8427 | 712 | (setq comint-prompt-regexp "\\(^\\|\n\\)\\*") |
f54877b2 | 713 | (setq paragraph-start comint-prompt-regexp) |
2291bfaa | 714 | (local-set-key [menu-bar debug tbreak] |
b3ede706 | 715 | '("Temporary Breakpoint" . gud-tbreak)) |
13b80a60 ER |
716 | (run-hooks 'sdb-mode-hook) |
717 | ) | |
575661b1 | 718 | \f |
13b80a60 ER |
719 | ;; ====================================================================== |
720 | ;; dbx functions | |
721 | ||
f6376199 JB |
722 | ;;; History of argument lists passed to dbx. |
723 | (defvar gud-dbx-history nil) | |
724 | ||
69c1dd37 | 725 | (defcustom gud-dbx-directories nil |
3b3703fa RS |
726 | "*A list of directories that dbx should search for source code. |
727 | If nil, only source files in the program directory | |
728 | will be known to dbx. | |
729 | ||
730 | The file names should be absolute, or relative to the directory | |
69c1dd37 RS |
731 | containing the executable being debugged." |
732 | :type '(choice (const :tag "Current Directory" nil) | |
733 | (repeat :value ("") | |
734 | directory)) | |
735 | :group 'gud) | |
3b3703fa RS |
736 | |
737 | (defun gud-dbx-massage-args (file args) | |
738 | (nconc (let ((directories gud-dbx-directories) | |
739 | (result nil)) | |
740 | (while directories | |
741 | (setq result (cons (car directories) (cons "-I" result))) | |
742 | (setq directories (cdr directories))) | |
743 | (nreverse result)) | |
744 | args)) | |
745 | ||
746 | (defun gud-dbx-file-name (f) | |
747 | "Transform a relative file name to an absolute file name, for dbx." | |
748 | (let ((result nil)) | |
749 | (if (file-exists-p f) | |
f5851398 | 750 | (setq result (expand-file-name f)) |
3b3703fa | 751 | (let ((directories gud-dbx-directories)) |
f5851398 EZ |
752 | (while directories |
753 | (let ((path (concat (car directories) "/" f))) | |
754 | (if (file-exists-p path) | |
755 | (setq result (expand-file-name path) | |
756 | directories nil))) | |
757 | (setq directories (cdr directories))))) | |
3b3703fa | 758 | result)) |
13b80a60 | 759 | |
ee0155df | 760 | (defun gud-dbx-marker-filter (string) |
7f629252 RS |
761 | (setq gud-marker-acc (if gud-marker-acc (concat gud-marker-acc string) string)) |
762 | ||
763 | (let (start) | |
764 | ;; Process all complete markers in this chunk. | |
765 | (while (or (string-match | |
766 | "stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
767 | gud-marker-acc start) | |
768 | (string-match | |
769 | "signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
770 | gud-marker-acc start)) | |
13b80a60 ER |
771 | (setq gud-last-frame |
772 | (cons | |
7f629252 | 773 | (substring gud-marker-acc (match-beginning 2) (match-end 2)) |
f4b643a1 | 774 | (string-to-int |
7f629252 RS |
775 | (substring gud-marker-acc (match-beginning 1) (match-end 1)))) |
776 | start (match-end 0))) | |
777 | ||
778 | ;; Search for the last incomplete line in this chunk | |
779 | (while (string-match "\n" gud-marker-acc start) | |
780 | (setq start (match-end 0))) | |
781 | ||
782 | ;; If the incomplete line APPEARS to begin with another marker, keep it | |
783 | ;; in the accumulator. Otherwise, clear the accumulator to avoid an | |
784 | ;; unnecessary concat during the next call. | |
f4b643a1 | 785 | (setq gud-marker-acc |
7f629252 RS |
786 | (if (string-match "\\(stopped\\|signal\\)" gud-marker-acc start) |
787 | (substring gud-marker-acc (match-beginning 0)) | |
788 | nil))) | |
13b80a60 ER |
789 | string) |
790 | ||
f266485d RS |
791 | ;; Functions for Mips-style dbx. Given the option `-emacs', documented in |
792 | ;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's. | |
793 | (defvar gud-mips-p | |
794 | (or (string-match "^mips-[^-]*-ultrix" system-configuration) | |
795 | ;; We haven't tested gud on this system: | |
796 | (string-match "^mips-[^-]*-riscos" system-configuration) | |
797 | ;; It's documented on OSF/1.3 | |
9f24ea14 | 798 | (string-match "^mips-[^-]*-osf1" system-configuration) |
7c82656b | 799 | (string-match "^alpha[^-]*-[^-]*-osf" system-configuration)) |
f266485d | 800 | "Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').") |
13eaa026 RS |
801 | |
802 | (defun gud-mipsdbx-massage-args (file args) | |
dfbd82a6 | 803 | (cons "-emacs" args)) |
13eaa026 | 804 | |
f266485d RS |
805 | ;; This is just like the gdb one except for the regexps since we need to cope |
806 | ;; with an optional breakpoint number in [] before the ^Z^Z | |
13eaa026 | 807 | (defun gud-mipsdbx-marker-filter (string) |
bed6a98d RS |
808 | (setq gud-marker-acc (concat gud-marker-acc string)) |
809 | (let ((output "")) | |
810 | ||
811 | ;; Process all the complete markers in this chunk. | |
812 | (while (string-match | |
813 | ;; This is like th gdb marker but with an optional | |
814 | ;; leading break point number like `[1] ' | |
815 | "[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
816 | gud-marker-acc) | |
817 | (setq | |
818 | ||
819 | ;; Extract the frame position from the marker. | |
820 | gud-last-frame | |
821 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
822 | (string-to-int (substring gud-marker-acc | |
823 | (match-beginning 2) | |
824 | (match-end 2)))) | |
825 | ||
826 | ;; Append any text before the marker to the output we're going | |
827 | ;; to return - we don't include the marker in this text. | |
828 | output (concat output | |
829 | (substring gud-marker-acc 0 (match-beginning 0))) | |
830 | ||
831 | ;; Set the accumulator to the remaining text. | |
832 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
833 | ||
834 | ;; Does the remaining text look like it might end with the | |
835 | ;; beginning of another marker? If it does, then keep it in | |
f5851398 | 836 | ;; gud-marker-acc until we receive the rest of it. Since we |
bed6a98d RS |
837 | ;; know the full marker regexp above failed, it's pretty simple to |
838 | ;; test for marker starts. | |
839 | (if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc) | |
840 | (progn | |
841 | ;; Everything before the potential marker start can be output. | |
842 | (setq output (concat output (substring gud-marker-acc | |
843 | 0 (match-beginning 0)))) | |
844 | ||
845 | ;; Everything after, we save, to combine with later input. | |
846 | (setq gud-marker-acc | |
847 | (substring gud-marker-acc (match-beginning 0)))) | |
848 | ||
849 | (setq output (concat output gud-marker-acc) | |
850 | gud-marker-acc "")) | |
851 | ||
852 | output)) | |
13eaa026 | 853 | |
f266485d RS |
854 | ;; The dbx in IRIX is a pain. It doesn't print the file name when |
855 | ;; stopping at a breakpoint (but you do get it from the `up' and | |
f5851398 | 856 | ;; `down' commands...). The only way to extract the information seems |
f266485d RS |
857 | ;; to be with a `file' command, although the current line number is |
858 | ;; available in $curline. Thus we have to look for output which | |
859 | ;; appears to indicate a breakpoint. Then we prod the dbx sub-process | |
860 | ;; to output the information we want with a combination of the | |
861 | ;; `printf' and `file' commands as a pseudo marker which we can | |
862 | ;; recognise next time through the marker-filter. This would be like | |
863 | ;; the gdb marker but you can't get the file name without a newline... | |
864 | ;; Note that gud-remove won't work since Irix dbx expects a breakpoint | |
865 | ;; number rather than a line number etc. Maybe this could be made to | |
866 | ;; work by listing all the breakpoints and picking the one(s) with the | |
867 | ;; correct line number, but life's too short. | |
868 | ;; d.love@dl.ac.uk (Dave Love) can be blamed for this | |
869 | ||
ac8da950 KH |
870 | (defvar gud-irix-p |
871 | (and (string-match "^mips-[^-]*-irix" system-configuration) | |
872 | (not (string-match "irix[6-9]\\.[1-9]" system-configuration))) | |
f266485d | 873 | "Non-nil to assume the interface appropriate for IRIX dbx. |
ac8da950 KH |
874 | This works in IRIX 4, 5 and 6, but `gud-dbx-use-stopformat-p' provides |
875 | a better solution in 6.1 upwards.") | |
876 | (defvar gud-dbx-use-stopformat-p | |
877 | (string-match "irix[6-9]\\.[1-9]" system-configuration) | |
878 | "Non-nil to use the dbx feature present at least from Irix 6.1 | |
879 | whereby $stopformat=1 produces an output format compatiable with | |
880 | `gud-dbx-marker-filter'.") | |
2fb419e1 RS |
881 | ;; [Irix dbx seems to be a moving target. The dbx output changed |
882 | ;; subtly sometime between OS v4.0.5 and v5.2 so that, for instance, | |
883 | ;; the output from `up' is no longer spotted by gud (and it's probably | |
884 | ;; not distinctive enough to try to match it -- use C-<, C-> | |
885 | ;; exclusively) . For 5.3 and 6.0, the $curline variable changed to | |
886 | ;; `long long'(why?!), so the printf stuff needed changing. The line | |
ac8da950 KH |
887 | ;; number was cast to `long' as a compromise between the new `long |
888 | ;; long' and the original `int'. This is reported not to work in 6.2, | |
889 | ;; so it's changed back to int -- don't make your sources too long. | |
890 | ;; From Irix6.1 (but not 6.0?) dbx supports an undocumented feature | |
891 | ;; whereby `set $stopformat=1' reportedly produces output compatible | |
892 | ;; with `gud-dbx-marker-filter', which we prefer. | |
893 | ||
894 | ;; The process filter is also somewhat | |
2fb419e1 RS |
895 | ;; unreliable, sometimes not spotting the markers; I don't know |
896 | ;; whether there's anything that can be done about that. It would be | |
897 | ;; much better if SGI could be persuaded to (re?)instate the MIPS | |
898 | ;; -emacs flag for gdb-like output (which ought to be possible as most | |
899 | ;; of the communication I've had over it has been from sgi.com).] | |
f266485d RS |
900 | |
901 | ;; this filter is influenced by the xdb one rather than the gdb one | |
902 | (defun gud-irixdbx-marker-filter (string) | |
bed6a98d RS |
903 | (let (result (case-fold-search nil)) |
904 | (if (or (string-match comint-prompt-regexp string) | |
905 | (string-match ".*\012" string)) | |
906 | (setq result (concat gud-marker-acc string) | |
907 | gud-marker-acc "") | |
908 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
909 | (if result | |
910 | (cond | |
911 | ;; look for breakpoint or signal indication e.g.: | |
f5851398 | 912 | ;; [2] Process 1267 (pplot) stopped at [params:338 ,0x400ec0] |
bed6a98d RS |
913 | ;; Process 1281 (pplot) stopped at [params:339 ,0x400ec8] |
914 | ;; Process 1270 (pplot) Floating point exception [._read._read:16 ,0x452188] | |
915 | ((string-match | |
f4b643a1 | 916 | "^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n" |
bed6a98d RS |
917 | result) |
918 | ;; prod dbx into printing out the line number and file | |
919 | ;; name in a form we can grok as below | |
920 | (process-send-string (get-buffer-process gud-comint-buffer) | |
ac8da950 | 921 | "printf \"\032\032%1d:\",(int)$curline;file\n")) |
bed6a98d RS |
922 | ;; look for result of, say, "up" e.g.: |
923 | ;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c] | |
924 | ;; (this will also catch one of the lines printed by "where") | |
925 | ((string-match | |
926 | "^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n" | |
927 | result) | |
928 | (let ((file (substring result (match-beginning 1) | |
929 | (match-end 1)))) | |
930 | (if (file-exists-p file) | |
931 | (setq gud-last-frame | |
932 | (cons | |
933 | (substring | |
934 | result (match-beginning 1) (match-end 1)) | |
f4b643a1 | 935 | (string-to-int |
bed6a98d RS |
936 | (substring |
937 | result (match-beginning 2) (match-end 2))))))) | |
938 | result) | |
939 | ((string-match ; kluged-up marker as above | |
940 | "\032\032\\([0-9]*\\):\\(.*\\)\n" result) | |
3b3703fa RS |
941 | (let ((file (gud-dbx-file-name |
942 | (substring result (match-beginning 2) (match-end 2))))) | |
943 | (if (and file (file-exists-p file)) | |
bed6a98d RS |
944 | (setq gud-last-frame |
945 | (cons | |
946 | file | |
f4b643a1 | 947 | (string-to-int |
bed6a98d RS |
948 | (substring |
949 | result (match-beginning 1) (match-end 1))))))) | |
950 | (setq result (substring result 0 (match-beginning 0)))))) | |
951 | (or result ""))) | |
f266485d | 952 | |
34c8b673 RS |
953 | (defvar gud-dgux-p (string-match "-dgux" system-configuration) |
954 | "Non-nil means to assume the interface approriate for DG/UX dbx. | |
955 | This was tested using R4.11.") | |
956 | ||
957 | ;; There are a couple of differences between DG's dbx output and normal | |
958 | ;; dbx output which make it nontrivial to integrate this into the | |
959 | ;; standard dbx-marker-filter (mainly, there are a different number of | |
960 | ;; backreferences). The markers look like: | |
961 | ;; | |
962 | ;; (0) Stopped at line 10, routine main(argc=1, argv=0xeffff0e0), file t.c | |
963 | ;; | |
964 | ;; from breakpoints (the `(0)' there isn't constant, it's the breakpoint | |
965 | ;; number), and | |
966 | ;; | |
967 | ;; Stopped at line 13, routine main(argc=1, argv=0xeffff0e0), file t.c | |
968 | ;; | |
969 | ;; from signals and | |
970 | ;; | |
971 | ;; Frame 21, line 974, routine command_loop(), file keyboard.c | |
972 | ;; | |
973 | ;; from up/down/where. | |
974 | ||
975 | (defun gud-dguxdbx-marker-filter (string) | |
976 | (setq gud-marker-acc (if gud-marker-acc | |
977 | (concat gud-marker-acc string) | |
978 | string)) | |
979 | (let ((re (concat "^\\(\\(([0-9]+) \\)?Stopped at\\|Frame [0-9]+,\\)" | |
980 | " line \\([0-9]+\\), routine .*, file \\([^ \t\n]+\\)")) | |
981 | start) | |
982 | ;; Process all complete markers in this chunk. | |
983 | (while (string-match re gud-marker-acc start) | |
984 | (setq gud-last-frame | |
985 | (cons | |
986 | (substring gud-marker-acc (match-beginning 4) (match-end 4)) | |
987 | (string-to-int (substring gud-marker-acc | |
988 | (match-beginning 3) (match-end 3)))) | |
989 | start (match-end 0))) | |
990 | ||
991 | ;; Search for the last incomplete line in this chunk | |
992 | (while (string-match "\n" gud-marker-acc start) | |
993 | (setq start (match-end 0))) | |
994 | ||
995 | ;; If the incomplete line APPEARS to begin with another marker, keep it | |
996 | ;; in the accumulator. Otherwise, clear the accumulator to avoid an | |
997 | ;; unnecessary concat during the next call. | |
f4b643a1 | 998 | (setq gud-marker-acc |
34c8b673 RS |
999 | (if (string-match "Stopped\\|Frame" gud-marker-acc start) |
1000 | (substring gud-marker-acc (match-beginning 0)) | |
1001 | nil))) | |
1002 | string) | |
1003 | ||
ee0155df | 1004 | (defun gud-dbx-find-file (f) |
9bb4544b | 1005 | (save-excursion |
3b3703fa RS |
1006 | (let ((realf (gud-dbx-file-name f))) |
1007 | (if realf | |
c157af51 | 1008 | (find-file-noselect realf))))) |
13b80a60 | 1009 | |
10a4c11f | 1010 | ;;;###autoload |
a223b10d | 1011 | (defun dbx (command-line) |
13b80a60 ER |
1012 | "Run dbx on program FILE in buffer *gud-FILE*. |
1013 | The directory containing FILE becomes the initial working directory | |
1014 | and source-file directory for your debugger." | |
c157af51 | 1015 | (interactive (list (gud-query-cmdline 'dbx))) |
13eaa026 | 1016 | |
ee97eac3 RS |
1017 | (cond |
1018 | (gud-mips-p | |
1019 | (gud-common-init command-line 'gud-mipsdbx-massage-args | |
1020 | 'gud-mipsdbx-marker-filter 'gud-dbx-find-file)) | |
1021 | (gud-irix-p | |
1022 | (gud-common-init command-line 'gud-dbx-massage-args | |
1023 | 'gud-irixdbx-marker-filter 'gud-dbx-find-file)) | |
34c8b673 RS |
1024 | (gud-dgux-p |
1025 | (gud-common-init command-line 'gud-dbx-massage-args | |
1026 | 'gud-dguxdbx-marker-filter 'gud-dbx-find-file)) | |
ee97eac3 RS |
1027 | (t |
1028 | (gud-common-init command-line 'gud-dbx-massage-args | |
1029 | 'gud-dbx-marker-filter 'gud-dbx-find-file))) | |
5b08a462 | 1030 | |
c157af51 SM |
1031 | (set (make-local-variable 'gud-minor-mode) 'dbx) |
1032 | ||
13eaa026 | 1033 | (cond |
f266485d | 1034 | (gud-mips-p |
f5851398 EZ |
1035 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
1036 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
13eaa026 RS |
1037 | (gud-def gud-break "stop at \"%f\":%l" |
1038 | "\C-b" "Set breakpoint at current line.") | |
1039 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.")) | |
f266485d RS |
1040 | (gud-irix-p |
1041 | (gud-def gud-break "stop at \"%d%f\":%l" | |
1042 | "\C-b" "Set breakpoint at current line.") | |
1043 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.") | |
f5851398 | 1044 | (gud-def gud-up "up %p; printf \"\032\032%1d:\",(int)$curline;file\n" |
2fb419e1 | 1045 | "<" "Up (numeric arg) stack frames.") |
ac8da950 | 1046 | (gud-def gud-down "down %p; printf \"\032\032%1d:\",(int)$curline;file\n" |
2fb419e1 | 1047 | ">" "Down (numeric arg) stack frames.") |
f266485d RS |
1048 | ;; Make dbx give out the source location info that we need. |
1049 | (process-send-string (get-buffer-process gud-comint-buffer) | |
ac8da950 | 1050 | "printf \"\032\032%1d:\",(int)$curline;file\n")) |
13eaa026 | 1051 | (t |
f5851398 EZ |
1052 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
1053 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
13eaa026 | 1054 | (gud-def gud-break "file \"%d%f\"\nstop at %l" |
cfcda0ba EZ |
1055 | "\C-b" "Set breakpoint at current line.") |
1056 | (if gud-dbx-use-stopformat-p | |
1057 | (process-send-string (get-buffer-process gud-comint-buffer) | |
1058 | "set $stopformat=1\n")))) | |
13eaa026 | 1059 | |
dd8e46c7 RS |
1060 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") |
1061 | (gud-def gud-step "step %p" "\C-s" "Step one line with display.") | |
1062 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
1063 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
1064 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
dd8e46c7 | 1065 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 1066 | |
13eaa026 | 1067 | (setq comint-prompt-regexp "^[^)\n]*dbx) *") |
f54877b2 | 1068 | (setq paragraph-start comint-prompt-regexp) |
b3ede706 KH |
1069 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) |
1070 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
13b80a60 ER |
1071 | (run-hooks 'dbx-mode-hook) |
1072 | ) | |
575661b1 | 1073 | \f |
6496f3d2 RS |
1074 | ;; ====================================================================== |
1075 | ;; xdb (HP PARISC debugger) functions | |
1076 | ||
f6376199 JB |
1077 | ;;; History of argument lists passed to xdb. |
1078 | (defvar gud-xdb-history nil) | |
1079 | ||
69c1dd37 | 1080 | (defcustom gud-xdb-directories nil |
fce222c7 RS |
1081 | "*A list of directories that xdb should search for source code. |
1082 | If nil, only source files in the program directory | |
1083 | will be known to xdb. | |
1084 | ||
1085 | The file names should be absolute, or relative to the directory | |
69c1dd37 RS |
1086 | containing the executable being debugged." |
1087 | :type '(choice (const :tag "Current Directory" nil) | |
1088 | (repeat :value ("") | |
1089 | directory)) | |
1090 | :group 'gud) | |
fce222c7 | 1091 | |
a223b10d RM |
1092 | (defun gud-xdb-massage-args (file args) |
1093 | (nconc (let ((directories gud-xdb-directories) | |
1094 | (result nil)) | |
1095 | (while directories | |
1096 | (setq result (cons (car directories) (cons "-d" result))) | |
1097 | (setq directories (cdr directories))) | |
dfbd82a6 | 1098 | (nreverse result)) |
a223b10d | 1099 | args)) |
6496f3d2 RS |
1100 | |
1101 | (defun gud-xdb-file-name (f) | |
1102 | "Transform a relative pathname to a full pathname in xdb mode" | |
1103 | (let ((result nil)) | |
1104 | (if (file-exists-p f) | |
f5851398 | 1105 | (setq result (expand-file-name f)) |
fce222c7 | 1106 | (let ((directories gud-xdb-directories)) |
f5851398 EZ |
1107 | (while directories |
1108 | (let ((path (concat (car directories) "/" f))) | |
1109 | (if (file-exists-p path) | |
1110 | (setq result (expand-file-name path) | |
1111 | directories nil))) | |
1112 | (setq directories (cdr directories))))) | |
6496f3d2 RS |
1113 | result)) |
1114 | ||
1115 | ;; xdb does not print the lines all at once, so we have to accumulate them | |
6496f3d2 RS |
1116 | (defun gud-xdb-marker-filter (string) |
1117 | (let (result) | |
1118 | (if (or (string-match comint-prompt-regexp string) | |
f5851398 EZ |
1119 | (string-match ".*\012" string)) |
1120 | (setq result (concat gud-marker-acc string) | |
1121 | gud-marker-acc "") | |
f266485d | 1122 | (setq gud-marker-acc (concat gud-marker-acc string))) |
6496f3d2 | 1123 | (if result |
f5851398 | 1124 | (if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\)[: ]" |
1dc9668c | 1125 | result) |
f5851398 EZ |
1126 | (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):" |
1127 | result)) | |
1128 | (let ((line (string-to-int | |
1129 | (substring result (match-beginning 2) (match-end 2)))) | |
1130 | (file (gud-xdb-file-name | |
1131 | (substring result (match-beginning 1) (match-end 1))))) | |
1132 | (if file | |
1133 | (setq gud-last-frame (cons file line)))))) | |
f4b643a1 RS |
1134 | (or result ""))) |
1135 | ||
6496f3d2 | 1136 | (defun gud-xdb-find-file (f) |
9bb4544b RS |
1137 | (save-excursion |
1138 | (let ((realf (gud-xdb-file-name f))) | |
1139 | (if realf | |
c157af51 | 1140 | (find-file-noselect realf))))) |
6496f3d2 RS |
1141 | |
1142 | ;;;###autoload | |
a223b10d | 1143 | (defun xdb (command-line) |
6496f3d2 RS |
1144 | "Run xdb on program FILE in buffer *gud-FILE*. |
1145 | The directory containing FILE becomes the initial working directory | |
1146 | and source-file directory for your debugger. | |
1147 | ||
fce222c7 | 1148 | You can set the variable 'gud-xdb-directories' to a list of program source |
6496f3d2 | 1149 | directories if your program contains sources from more than one directory." |
c157af51 | 1150 | (interactive (list (gud-query-cmdline 'xdb))) |
6496f3d2 | 1151 | |
ee97eac3 RS |
1152 | (gud-common-init command-line 'gud-xdb-massage-args |
1153 | 'gud-xdb-marker-filter 'gud-xdb-find-file) | |
c157af51 | 1154 | (set (make-local-variable 'gud-minor-mode) 'xdb) |
6496f3d2 | 1155 | |
f5851398 | 1156 | (gud-def gud-break "b %f:%l" "\C-b" "Set breakpoint at current line.") |
6496f3d2 | 1157 | (gud-def gud-tbreak "b %f:%l\\t" "\C-t" |
f5851398 EZ |
1158 | "Set temporary breakpoint at current line.") |
1159 | (gud-def gud-remove "db" "\C-d" "Remove breakpoint at current line") | |
6496f3d2 RS |
1160 | (gud-def gud-step "s %p" "\C-s" "Step one line with display.") |
1161 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
1162 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
f5851398 EZ |
1163 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
1164 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
1165 | (gud-def gud-finish "bu\\t" "\C-f" "Finish executing current function.") | |
1166 | (gud-def gud-print "p %e" "\C-p" "Evaluate C expression at point.") | |
6496f3d2 RS |
1167 | |
1168 | (setq comint-prompt-regexp "^>") | |
f54877b2 | 1169 | (setq paragraph-start comint-prompt-regexp) |
b3ede706 KH |
1170 | (local-set-key [menu-bar debug tbreak] '("Temporary Breakpoint" . gud-tbreak)) |
1171 | (local-set-key [menu-bar debug finish] '("Finish Function" . gud-finish)) | |
1172 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
1173 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
6496f3d2 | 1174 | (run-hooks 'xdb-mode-hook)) |
575661b1 RS |
1175 | \f |
1176 | ;; ====================================================================== | |
1177 | ;; perldb functions | |
1178 | ||
1179 | ;;; History of argument lists passed to perldb. | |
1180 | (defvar gud-perldb-history nil) | |
1181 | ||
a09754e6 GM |
1182 | ;; Convert a command line as would be typed normally to run a script |
1183 | ;; into one that invokes an Emacs-enabled debugging session. | |
1184 | ;; "-d" in inserted as the first switch, and "-emacs" is inserted where | |
1185 | ;; it will be $ARGV[0] (see perl5db.pl). | |
575661b1 | 1186 | (defun gud-perldb-massage-args (file args) |
1c636b5f | 1187 | (let* ((new-args (list "-d")) |
a09754e6 GM |
1188 | (seen-e nil) |
1189 | (shift (lambda () | |
1190 | (setq new-args (cons (car args) new-args)) | |
1191 | (setq args (cdr args))))) | |
f2eb772d | 1192 | |
a09754e6 | 1193 | ;; Pass all switches and -e scripts through. |
f2eb772d | 1194 | (while (and args |
a09754e6 GM |
1195 | (string-match "^-" (car args)) |
1196 | (not (equal "-" (car args))) | |
1197 | (not (equal "--" (car args)))) | |
1198 | (when (equal "-e" (car args)) | |
1199 | ;; -e goes with the next arg, so shift one extra. | |
1200 | (or (funcall shift) | |
1201 | ;; -e as the last arg is an error in Perl. | |
55535639 | 1202 | (error "No code specified for -e")) |
a09754e6 GM |
1203 | (setq seen-e t)) |
1204 | (funcall shift)) | |
1205 | ||
d2d1851b | 1206 | (unless seen-e |
a09754e6 GM |
1207 | (if (or (not args) |
1208 | (string-match "^-" (car args))) | |
55535639 | 1209 | (error "Can't use stdin as the script to debug")) |
a09754e6 GM |
1210 | ;; This is the program name. |
1211 | (funcall shift)) | |
1212 | ||
1213 | ;; If -e specified, make sure there is a -- so -emacs is not taken | |
1214 | ;; as -e macs. | |
1215 | (if (and args (equal "--" (car args))) | |
1216 | (funcall shift) | |
d2d1851b | 1217 | (and seen-e (push "--" new-args))) |
f2eb772d | 1218 | |
d2d1851b | 1219 | (push "-emacs" new-args) |
f2eb772d | 1220 | (while args |
a09754e6 | 1221 | (funcall shift)) |
f2eb772d | 1222 | |
a09754e6 | 1223 | (nreverse new-args))) |
575661b1 RS |
1224 | |
1225 | ;; There's no guarantee that Emacs will hand the filter the entire | |
1226 | ;; marker at once; it could be broken up across several strings. We | |
1227 | ;; might even receive a big chunk with several markers in it. If we | |
1228 | ;; receive a chunk of text which looks like it might contain the | |
1229 | ;; beginning of a marker, we save it here between calls to the | |
1230 | ;; filter. | |
575661b1 | 1231 | (defun gud-perldb-marker-filter (string) |
bed6a98d RS |
1232 | (setq gud-marker-acc (concat gud-marker-acc string)) |
1233 | (let ((output "")) | |
1234 | ||
1235 | ;; Process all the complete markers in this chunk. | |
aa9063cb | 1236 | (while (string-match "\032\032\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\):.*\n" |
bed6a98d RS |
1237 | gud-marker-acc) |
1238 | (setq | |
1239 | ||
1240 | ;; Extract the frame position from the marker. | |
1241 | gud-last-frame | |
1242 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
1243 | (string-to-int (substring gud-marker-acc | |
aa9063cb RS |
1244 | (match-beginning 3) |
1245 | (match-end 3)))) | |
bed6a98d RS |
1246 | |
1247 | ;; Append any text before the marker to the output we're going | |
1248 | ;; to return - we don't include the marker in this text. | |
1249 | output (concat output | |
1250 | (substring gud-marker-acc 0 (match-beginning 0))) | |
1251 | ||
1252 | ;; Set the accumulator to the remaining text. | |
1253 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
1254 | ||
1255 | ;; Does the remaining text look like it might end with the | |
1256 | ;; beginning of another marker? If it does, then keep it in | |
f5851398 | 1257 | ;; gud-marker-acc until we receive the rest of it. Since we |
bed6a98d RS |
1258 | ;; know the full marker regexp above failed, it's pretty simple to |
1259 | ;; test for marker starts. | |
1260 | (if (string-match "\032.*\\'" gud-marker-acc) | |
1261 | (progn | |
1262 | ;; Everything before the potential marker start can be output. | |
1263 | (setq output (concat output (substring gud-marker-acc | |
1264 | 0 (match-beginning 0)))) | |
1265 | ||
1266 | ;; Everything after, we save, to combine with later input. | |
1267 | (setq gud-marker-acc | |
1268 | (substring gud-marker-acc (match-beginning 0)))) | |
1269 | ||
1270 | (setq output (concat output gud-marker-acc) | |
1271 | gud-marker-acc "")) | |
1272 | ||
1273 | output)) | |
575661b1 RS |
1274 | |
1275 | (defun gud-perldb-find-file (f) | |
c157af51 | 1276 | (find-file-noselect f)) |
575661b1 | 1277 | |
c3fd0eea | 1278 | (defcustom gud-perldb-command-name "perl" |
69c1dd37 RS |
1279 | "File name for executing Perl." |
1280 | :type 'string | |
1281 | :group 'gud) | |
9ab5d005 | 1282 | |
575661b1 RS |
1283 | ;;;###autoload |
1284 | (defun perldb (command-line) | |
1285 | "Run perldb on program FILE in buffer *gud-FILE*. | |
1286 | The directory containing FILE becomes the initial working directory | |
1287 | and source-file directory for your debugger." | |
1288 | (interactive | |
c157af51 SM |
1289 | (list (gud-query-cmdline 'perldb |
1290 | (concat (or (buffer-file-name) "-e 0") " ")))) | |
575661b1 | 1291 | |
ee97eac3 RS |
1292 | (gud-common-init command-line 'gud-perldb-massage-args |
1293 | 'gud-perldb-marker-filter 'gud-perldb-find-file) | |
c157af51 | 1294 | (set (make-local-variable 'gud-minor-mode) 'perldb) |
575661b1 | 1295 | |
f5851398 EZ |
1296 | (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.") |
1297 | (gud-def gud-remove "d %l" "\C-d" "Remove breakpoint at current line") | |
1298 | (gud-def gud-step "s" "\C-s" "Step one source line with display.") | |
1299 | (gud-def gud-next "n" "\C-n" "Step one line (skip functions).") | |
1300 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
1301 | ; (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
1302 | ; (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") | |
2c32e5c6 | 1303 | ; (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") |
f5851398 | 1304 | (gud-def gud-print "%e" "\C-p" "Evaluate perl expression at point.") |
2c32e5c6 | 1305 | |
f5851398 | 1306 | (setq comint-prompt-regexp "^ DB<+[0-9]+>+ ") |
f54877b2 | 1307 | (setq paragraph-start comint-prompt-regexp) |
c157af51 | 1308 | (run-hooks 'perldb-mode-hook)) |
c3fd0eea | 1309 | \f |
d2d23393 RS |
1310 | ;; ====================================================================== |
1311 | ;; pdb (Python debugger) functions | |
1312 | ||
1313 | ;;; History of argument lists passed to pdb. | |
1314 | (defvar gud-pdb-history nil) | |
1315 | ||
1316 | (defun gud-pdb-massage-args (file args) | |
1317 | args) | |
1318 | ||
1319 | ;; Last group is for return value, e.g. "> test.py(2)foo()->None" | |
1320 | ;; Either file or function name may be omitted: "> <string>(0)?()" | |
1321 | (defvar gud-pdb-marker-regexp | |
1322 | "^> \\([-a-zA-Z0-9_/.]*\\|<string>\\)(\\([0-9]+\\))\\([a-zA-Z0-9_]*\\|\\?\\)()\\(->[^\n]*\\)?\n") | |
1323 | (defvar gud-pdb-marker-regexp-file-group 1) | |
1324 | (defvar gud-pdb-marker-regexp-line-group 2) | |
1325 | (defvar gud-pdb-marker-regexp-fnname-group 3) | |
1326 | ||
1327 | (defvar gud-pdb-marker-regexp-start "^> ") | |
1328 | ||
1329 | ;; There's no guarantee that Emacs will hand the filter the entire | |
1330 | ;; marker at once; it could be broken up across several strings. We | |
1331 | ;; might even receive a big chunk with several markers in it. If we | |
1332 | ;; receive a chunk of text which looks like it might contain the | |
1333 | ;; beginning of a marker, we save it here between calls to the | |
1334 | ;; filter. | |
1335 | (defun gud-pdb-marker-filter (string) | |
1336 | (setq gud-marker-acc (concat gud-marker-acc string)) | |
1337 | (let ((output "")) | |
1338 | ||
1339 | ;; Process all the complete markers in this chunk. | |
1340 | (while (string-match gud-pdb-marker-regexp gud-marker-acc) | |
1341 | (setq | |
1342 | ||
1343 | ;; Extract the frame position from the marker. | |
1344 | gud-last-frame | |
1345 | (let ((file (match-string gud-pdb-marker-regexp-file-group | |
1346 | gud-marker-acc)) | |
1347 | (line (string-to-int | |
1348 | (match-string gud-pdb-marker-regexp-line-group | |
1349 | gud-marker-acc)))) | |
1350 | (if (string-equal file "<string>") | |
1351 | gud-last-frame | |
1352 | (cons file line))) | |
1353 | ||
1354 | ;; Output everything instead of the below | |
1355 | output (concat output (substring gud-marker-acc 0 (match-end 0))) | |
f5851398 EZ |
1356 | ;; ;; Append any text before the marker to the output we're going |
1357 | ;; ;; to return - we don't include the marker in this text. | |
1358 | ;; output (concat output | |
1359 | ;; (substring gud-marker-acc 0 (match-beginning 0))) | |
d2d23393 RS |
1360 | |
1361 | ;; Set the accumulator to the remaining text. | |
1362 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
1363 | ||
1364 | ;; Does the remaining text look like it might end with the | |
1365 | ;; beginning of another marker? If it does, then keep it in | |
f5851398 | 1366 | ;; gud-marker-acc until we receive the rest of it. Since we |
d2d23393 RS |
1367 | ;; know the full marker regexp above failed, it's pretty simple to |
1368 | ;; test for marker starts. | |
1369 | (if (string-match gud-pdb-marker-regexp-start gud-marker-acc) | |
1370 | (progn | |
1371 | ;; Everything before the potential marker start can be output. | |
1372 | (setq output (concat output (substring gud-marker-acc | |
1373 | 0 (match-beginning 0)))) | |
1374 | ||
1375 | ;; Everything after, we save, to combine with later input. | |
1376 | (setq gud-marker-acc | |
1377 | (substring gud-marker-acc (match-beginning 0)))) | |
1378 | ||
1379 | (setq output (concat output gud-marker-acc) | |
1380 | gud-marker-acc "")) | |
1381 | ||
1382 | output)) | |
1383 | ||
1384 | (defun gud-pdb-find-file (f) | |
c157af51 | 1385 | (find-file-noselect f)) |
d2d23393 RS |
1386 | |
1387 | (defcustom gud-pdb-command-name "pdb" | |
1388 | "File name for executing the Python debugger. | |
1389 | This should be an executable on your path, or an absolute file name." | |
1390 | :type 'string | |
1391 | :group 'gud) | |
1392 | ||
1393 | ;;;###autoload | |
1394 | (defun pdb (command-line) | |
1395 | "Run pdb on program FILE in buffer `*gud-FILE*'. | |
1396 | The directory containing FILE becomes the initial working directory | |
1397 | and source-file directory for your debugger." | |
1398 | (interactive | |
c157af51 | 1399 | (list (gud-query-cmdline 'pdb))) |
d2d23393 RS |
1400 | |
1401 | (gud-common-init command-line 'gud-pdb-massage-args | |
1402 | 'gud-pdb-marker-filter 'gud-pdb-find-file) | |
c157af51 | 1403 | (set (make-local-variable 'gud-minor-mode) 'pdb) |
d2d23393 RS |
1404 | |
1405 | (gud-def gud-break "break %l" "\C-b" "Set breakpoint at current line.") | |
1406 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") | |
f5851398 EZ |
1407 | (gud-def gud-step "step" "\C-s" "Step one source line with display.") |
1408 | (gud-def gud-next "next" "\C-n" "Step one line (skip functions).") | |
d2d23393 | 1409 | (gud-def gud-cont "continue" "\C-r" "Continue with display.") |
f5851398 EZ |
1410 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.") |
1411 | (gud-def gud-up "up" "<" "Up one stack frame.") | |
1412 | (gud-def gud-down "down" ">" "Down one stack frame.") | |
1413 | (gud-def gud-print "p %e" "\C-p" "Evaluate Python expression at point.") | |
d2d23393 RS |
1414 | ;; Is this right? |
1415 | (gud-def gud-statement "! %e" "\C-e" "Execute Python statement at point.") | |
1416 | ||
1417 | (local-set-key [menu-bar debug finish] '("Finish Function" . gud-finish)) | |
1418 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
1419 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
1420 | ;; (setq comint-prompt-regexp "^(.*pdb[+]?) *") | |
1421 | (setq comint-prompt-regexp "^(Pdb) *") | |
1422 | (setq paragraph-start comint-prompt-regexp) | |
1423 | (run-hooks 'pdb-mode-hook)) | |
1424 | \f | |
c3fd0eea RS |
1425 | ;; ====================================================================== |
1426 | ;; | |
1427 | ;; JDB support. | |
1428 | ;; | |
1429 | ;; AUTHOR: Derek Davies <ddavies@world.std.com> | |
f5851398 | 1430 | ;; Zoltan Kemenczy <zoltan@ieee.org;zkemenczy@rim.net> |
c3fd0eea RS |
1431 | ;; |
1432 | ;; CREATED: Sun Feb 22 10:46:38 1998 Derek Davies. | |
f5851398 | 1433 | ;; UPDATED: Nov 11, 2001 Zoltan Kemenczy |
c3fd0eea RS |
1434 | ;; |
1435 | ;; INVOCATION NOTES: | |
1436 | ;; | |
1437 | ;; You invoke jdb-mode with: | |
1438 | ;; | |
1439 | ;; M-x jdb <enter> | |
1440 | ;; | |
1441 | ;; It responds with: | |
1442 | ;; | |
f4b643a1 | 1443 | ;; Run jdb (like this): jdb |
c3fd0eea RS |
1444 | ;; |
1445 | ;; type any jdb switches followed by the name of the class you'd like to debug. | |
1446 | ;; Supply a fully qualfied classname (these do not have the ".class" extension) | |
1447 | ;; for the name of the class to debug (e.g. "COM.the-kind.ddavies.CoolClass"). | |
1448 | ;; See the known problems section below for restrictions when specifying jdb | |
1449 | ;; command line switches (search forward for '-classpath'). | |
1450 | ;; | |
1451 | ;; You should see something like the following: | |
1452 | ;; | |
1453 | ;; Current directory is ~/src/java/hello/ | |
1454 | ;; Initializing jdb... | |
1455 | ;; 0xed2f6628:class(hello) | |
1456 | ;; > | |
1457 | ;; | |
1458 | ;; To set an initial breakpoint try: | |
1459 | ;; | |
1460 | ;; > stop in hello.main | |
1461 | ;; Breakpoint set in hello.main | |
1462 | ;; > | |
1463 | ;; | |
1464 | ;; To execute the program type: | |
1465 | ;; | |
1466 | ;; > run | |
f4b643a1 | 1467 | ;; run hello |
c3fd0eea RS |
1468 | ;; |
1469 | ;; Breakpoint hit: running ... | |
1470 | ;; hello.main (hello:12) | |
1471 | ;; | |
1472 | ;; Type M-n to step over the current line and M-s to step into it. That, | |
1473 | ;; along with the JDB 'help' command should get you started. The 'quit' | |
35dd3c55 KH |
1474 | ;; JDB command will get out out of the debugger. There is some truly |
1475 | ;; pathetic JDB documentation available at: | |
1476 | ;; | |
1477 | ;; http://java.sun.com/products/jdk/1.1/debugging/ | |
c3fd0eea RS |
1478 | ;; |
1479 | ;; KNOWN PROBLEMS AND FIXME's: | |
1480 | ;; | |
35dd3c55 | 1481 | ;; Not sure what happens with inner classes ... haven't tried them. |
c3fd0eea | 1482 | ;; |
f5851398 | 1483 | ;; Does not grok UNICODE id's. Only ASCII id's are supported. |
c3fd0eea | 1484 | ;; |
c3fd0eea RS |
1485 | ;; You must not put whitespace between "-classpath" and the path to |
1486 | ;; search for java classes even though it is required when invoking jdb | |
1487 | ;; from the command line. See gud-jdb-massage-args for details. | |
e78e1cd1 | 1488 | ;; The same applies for "-sourcepath". |
c3fd0eea | 1489 | ;; |
2ef4e909 RS |
1490 | ;; Note: The following applies only if `gud-jdb-use-classpath' is nil; |
1491 | ;; refer to the documentation of `gud-jdb-use-classpath' and | |
e78e1cd1 EZ |
1492 | ;; `gud-jdb-classpath',`gud-jdb-sourcepath' variables for information |
1493 | ;; on using the classpath for locating java source files. | |
2ef4e909 | 1494 | ;; |
35dd3c55 KH |
1495 | ;; If any of the source files in the directories listed in |
1496 | ;; gud-jdb-directories won't parse you'll have problems. Make sure | |
1497 | ;; every file ending in ".java" in these directories parses without error. | |
1498 | ;; | |
1499 | ;; All the .java files in the directories in gud-jdb-directories are | |
f5851398 | 1500 | ;; syntactically analyzed each time gud jdb is invoked. It would be |
35dd3c55 KH |
1501 | ;; nice to keep as much information as possible between runs. It would |
1502 | ;; be really nice to analyze the files only as neccessary (when the | |
1503 | ;; source needs to be displayed.) I'm not sure to what extent the former | |
1504 | ;; can be accomplished and I'm not sure the latter can be done at all | |
1505 | ;; since I don't know of any general way to tell which .class files are | |
1506 | ;; defined by which .java file without analyzing all the .java files. | |
1507 | ;; If anyone knows why JavaSoft didn't put the source file names in | |
1508 | ;; debuggable .class files please clue me in so I find something else | |
1509 | ;; to be spiteful and bitter about. | |
1510 | ;; | |
c3fd0eea RS |
1511 | ;; ====================================================================== |
1512 | ;; gud jdb variables and functions | |
1513 | ||
2ef4e909 RS |
1514 | (defcustom gud-jdb-command-name "jdb" |
1515 | "Command that executes the Java debugger." | |
1516 | :type 'string | |
1517 | :group 'gud) | |
1518 | ||
1519 | (defcustom gud-jdb-use-classpath t | |
1520 | "If non-nil, search for Java source files in classpath directories. | |
1521 | The list of directories to search is the value of `gud-jdb-classpath'. | |
1522 | The file pathname is obtained by converting the fully qualified | |
1523 | class information output by jdb to a relative pathname and appending | |
1524 | it to `gud-jdb-classpath' element by element until a match is found. | |
1525 | ||
1526 | This method has a significant jdb startup time reduction advantage | |
1527 | since it does not require the scanning of all `gud-jdb-directories' | |
1528 | and parsing all Java files for class information. | |
1529 | ||
1530 | Set to nil to use `gud-jdb-directories' to scan java sources for | |
1531 | class information on jdb startup (original method)." | |
1532 | :type 'boolean | |
1533 | :group 'gud) | |
1534 | ||
1535 | (defvar gud-jdb-classpath nil | |
1536 | "Java/jdb classpath directories list. | |
1537 | If `gud-jdb-use-classpath' is non-nil, gud-jdb derives the `gud-jdb-classpath' | |
1538 | list automatically using the following methods in sequence | |
1539 | (with subsequent successful steps overriding the results of previous | |
1540 | steps): | |
1541 | ||
1542 | 1) Read the CLASSPATH environment variable, | |
1543 | 2) Read any \"-classpath\" argument used to run jdb, | |
1544 | or detected in jdb output (e.g. if jdb is run by a script | |
1545 | that echoes the actual jdb command before starting jdb) | |
1546 | 3) Send a \"classpath\" command to jdb and scan jdb output for | |
1547 | classpath information if jdb is invoked with an \"-attach\" (to | |
1548 | an already running VM) argument (This case typically does not | |
1549 | have a \"-classpath\" command line argument - that is provided | |
1550 | to the VM when it is started). | |
1551 | ||
1552 | Note that method 3 cannot be used with oldjdb (or Java 1 jdb) since | |
1553 | those debuggers do not support the classpath command. Use 1) or 2).") | |
1554 | ||
e78e1cd1 EZ |
1555 | (defvar gud-jdb-sourcepath nil |
1556 | "Directory list provided by an (optional) \"-sourcepath\" option to jdb. | |
1557 | This list is prepended to `gud-jdb-classpath' to form the complete | |
1558 | list of directories searched for source files.") | |
1559 | ||
2ef4e909 RS |
1560 | (defvar gud-marker-acc-max-length 4000 |
1561 | "Maximum number of debugger output characters to keep. | |
1562 | This variable limits the size of `gud-marker-acc' which holds | |
1563 | the most recent debugger output history while searching for | |
1564 | source file information.") | |
1565 | ||
1566 | (defvar gud-jdb-history nil | |
1567 | "History of argument lists passed to jdb.") | |
1568 | ||
c3fd0eea RS |
1569 | |
1570 | ;; List of Java source file directories. | |
1571 | (defvar gud-jdb-directories (list ".") | |
f4b643a1 | 1572 | "*A list of directories that gud jdb should search for source code. |
8050f8c8 GM |
1573 | The file names should be absolute, or relative to the current |
1574 | directory. | |
1575 | ||
1576 | The set of .java files residing in the directories listed are | |
1577 | syntactically analyzed to determine the classes they define and the | |
f5851398 | 1578 | packages in which these classes belong. In this way gud jdb maps the |
8050f8c8 GM |
1579 | package-qualified class names output by the jdb debugger to the source |
1580 | file from which the class originated. This allows gud mode to keep | |
1581 | the source code display in sync with the debugging session.") | |
c3fd0eea | 1582 | |
2ef4e909 RS |
1583 | (defvar gud-jdb-source-files nil |
1584 | "List of the java source files for this debugging session.") | |
c3fd0eea | 1585 | |
2ef4e909 RS |
1586 | ;; Association list of fully qualified class names (package + class name) |
1587 | ;; and their source files. | |
1588 | (defvar gud-jdb-class-source-alist nil | |
1589 | "Association list of fully qualified class names and source files.") | |
500f12df RS |
1590 | |
1591 | ;; This is used to hold a source file during analysis. | |
1592 | (defvar gud-jdb-analysis-buffer nil) | |
1593 | ||
2ef4e909 RS |
1594 | (defvar gud-jdb-classpath-string nil |
1595 | "Holds temporary classpath values.") | |
1596 | ||
c3fd0eea | 1597 | (defun gud-jdb-build-source-files-list (path extn) |
e78e1cd1 | 1598 | "Return a list of java source files (absolute paths). |
2ef4e909 | 1599 | PATH gives the directories in which to search for files with |
f5851398 | 1600 | extension EXTN. Normally EXTN is given as the regular expression |
2ef4e909 | 1601 | \"\\.java$\" ." |
90757bb3 | 1602 | (apply 'nconc (mapcar (lambda (d) |
471cd1d3 | 1603 | (when (file-directory-p d) |
e5ef2f5c SM |
1604 | (directory-files d t extn nil))) |
1605 | path))) | |
c3fd0eea | 1606 | |
35dd3c55 KH |
1607 | ;; Move point past whitespace. |
1608 | (defun gud-jdb-skip-whitespace () | |
1609 | (skip-chars-forward " \n\r\t\014")) | |
1610 | ||
1611 | ;; Move point past a "// <eol>" type of comment. | |
1612 | (defun gud-jdb-skip-single-line-comment () | |
1613 | (end-of-line)) | |
1614 | ||
1615 | ;; Move point past a "/* */" or "/** */" type of comment. | |
1616 | (defun gud-jdb-skip-traditional-or-documentation-comment () | |
1617 | (forward-char 2) | |
1618 | (catch 'break | |
f4b643a1 RS |
1619 | (while (not (eobp)) |
1620 | (if (eq (following-char) ?*) | |
1621 | (progn | |
1622 | (forward-char) | |
1623 | (if (not (eobp)) | |
1624 | (if (eq (following-char) ?/) | |
1625 | (progn | |
1626 | (forward-char) | |
1627 | (throw 'break nil))))) | |
1628 | (forward-char))))) | |
1629 | ||
35dd3c55 KH |
1630 | ;; Move point past any number of consecutive whitespace chars and/or comments. |
1631 | (defun gud-jdb-skip-whitespace-and-comments () | |
1632 | (gud-jdb-skip-whitespace) | |
1633 | (catch 'done | |
f4b643a1 RS |
1634 | (while t |
1635 | (cond | |
1636 | ((looking-at "//") | |
1637 | (gud-jdb-skip-single-line-comment) | |
1638 | (gud-jdb-skip-whitespace)) | |
1639 | ((looking-at "/\\*") | |
1640 | (gud-jdb-skip-traditional-or-documentation-comment) | |
1641 | (gud-jdb-skip-whitespace)) | |
1642 | (t (throw 'done nil)))))) | |
35dd3c55 KH |
1643 | |
1644 | ;; Move point past things that are id-like. The intent is to skip regular | |
1645 | ;; id's, such as class or interface names as well as package and interface | |
1646 | ;; names. | |
1647 | (defun gud-jdb-skip-id-ish-thing () | |
1648 | (skip-chars-forward "^ /\n\r\t\014,;{")) | |
1649 | ||
1650 | ;; Move point past a string literal. | |
1651 | (defun gud-jdb-skip-string-literal () | |
1652 | (forward-char) | |
73739399 RS |
1653 | (while (not (cond |
1654 | ((eq (following-char) ?\\) | |
1655 | (forward-char)) | |
1656 | ((eq (following-char) ?\042)))) | |
f4b643a1 | 1657 | (forward-char)) |
35dd3c55 KH |
1658 | (forward-char)) |
1659 | ||
1660 | ;; Move point past a character literal. | |
1661 | (defun gud-jdb-skip-character-literal () | |
1662 | (forward-char) | |
1663 | (while | |
f4b643a1 RS |
1664 | (progn |
1665 | (if (eq (following-char) ?\\) | |
1666 | (forward-char 2)) | |
1667 | (not (eq (following-char) ?\'))) | |
1668 | (forward-char)) | |
35dd3c55 | 1669 | (forward-char)) |
f4b643a1 | 1670 | |
f5851398 | 1671 | ;; Move point past the following block. There may be (legal) cruft before |
35dd3c55 KH |
1672 | ;; the block's opening brace. There must be a block or it's the end of life |
1673 | ;; in petticoat junction. | |
1674 | (defun gud-jdb-skip-block () | |
f4b643a1 | 1675 | |
35dd3c55 KH |
1676 | ;; Find the begining of the block. |
1677 | (while | |
f4b643a1 RS |
1678 | (not (eq (following-char) ?{)) |
1679 | ||
1680 | ;; Skip any constructs that can harbor literal block delimiter | |
1681 | ;; characters and/or the delimiters for the constructs themselves. | |
1682 | (cond | |
1683 | ((looking-at "//") | |
1684 | (gud-jdb-skip-single-line-comment)) | |
1685 | ((looking-at "/\\*") | |
1686 | (gud-jdb-skip-traditional-or-documentation-comment)) | |
1687 | ((eq (following-char) ?\042) | |
1688 | (gud-jdb-skip-string-literal)) | |
1689 | ((eq (following-char) ?\') | |
1690 | (gud-jdb-skip-character-literal)) | |
1691 | (t (forward-char)))) | |
35dd3c55 | 1692 | |
35dd3c55 KH |
1693 | ;; Now at the begining of the block. |
1694 | (forward-char) | |
1695 | ||
1696 | ;; Skip over the body of the block as well as the final brace. | |
1697 | (let ((open-level 1)) | |
f4b643a1 RS |
1698 | (while (not (eq open-level 0)) |
1699 | (cond | |
1700 | ((looking-at "//") | |
1701 | (gud-jdb-skip-single-line-comment)) | |
1702 | ((looking-at "/\\*") | |
1703 | (gud-jdb-skip-traditional-or-documentation-comment)) | |
1704 | ((eq (following-char) ?\042) | |
1705 | (gud-jdb-skip-string-literal)) | |
1706 | ((eq (following-char) ?\') | |
1707 | (gud-jdb-skip-character-literal)) | |
1708 | ((eq (following-char) ?{) | |
1709 | (setq open-level (+ open-level 1)) | |
1710 | (forward-char)) | |
1711 | ((eq (following-char) ?}) | |
1712 | (setq open-level (- open-level 1)) | |
1713 | (forward-char)) | |
1714 | (t (forward-char)))))) | |
35dd3c55 KH |
1715 | |
1716 | ;; Find the package and class definitions in Java source file FILE. Assumes | |
1717 | ;; that FILE contains a legal Java program. BUF is a scratch buffer used | |
1718 | ;; to hold the source during analysis. | |
1719 | (defun gud-jdb-analyze-source (buf file) | |
1720 | (let ((l nil)) | |
f4b643a1 RS |
1721 | (set-buffer buf) |
1722 | (insert-file-contents file nil nil nil t) | |
1723 | (goto-char 0) | |
1724 | (catch 'abort | |
1725 | (let ((p "")) | |
1726 | (while (progn | |
1727 | (gud-jdb-skip-whitespace) | |
1728 | (not (eobp))) | |
1729 | (cond | |
1730 | ||
f5851398 | 1731 | ;; Any number of semi's following a block is legal. Move point |
f4b643a1 RS |
1732 | ;; past them. Note that comments and whitespace may be |
1733 | ;; interspersed as well. | |
1734 | ((eq (following-char) ?\073) | |
1735 | (forward-char)) | |
1736 | ||
1737 | ;; Move point past a single line comment. | |
1738 | ((looking-at "//") | |
1739 | (gud-jdb-skip-single-line-comment)) | |
1740 | ||
1741 | ;; Move point past a traditional or documentation comment. | |
1742 | ((looking-at "/\\*") | |
1743 | (gud-jdb-skip-traditional-or-documentation-comment)) | |
1744 | ||
1745 | ;; Move point past a package statement, but save the PackageName. | |
1746 | ((looking-at "package") | |
1747 | (forward-char 7) | |
1748 | (gud-jdb-skip-whitespace-and-comments) | |
1749 | (let ((s (point))) | |
1750 | (gud-jdb-skip-id-ish-thing) | |
1751 | (setq p (concat (buffer-substring s (point)) ".")) | |
1752 | (gud-jdb-skip-whitespace-and-comments) | |
1753 | (if (eq (following-char) ?\073) | |
1754 | (forward-char)))) | |
1755 | ||
1756 | ;; Move point past an import statement. | |
1757 | ((looking-at "import") | |
1758 | (forward-char 6) | |
1759 | (gud-jdb-skip-whitespace-and-comments) | |
1760 | (gud-jdb-skip-id-ish-thing) | |
1761 | (gud-jdb-skip-whitespace-and-comments) | |
1762 | (if (eq (following-char) ?\073) | |
1763 | (forward-char))) | |
1764 | ||
1765 | ;; Move point past the various kinds of ClassModifiers. | |
1766 | ((looking-at "public") | |
1767 | (forward-char 6)) | |
1768 | ((looking-at "abstract") | |
1769 | (forward-char 8)) | |
1770 | ((looking-at "final") | |
1771 | (forward-char 5)) | |
1772 | ||
1773 | ;; Move point past a ClassDeclaraction, but save the class | |
1774 | ;; Identifier. | |
1775 | ((looking-at "class") | |
1776 | (forward-char 5) | |
1777 | (gud-jdb-skip-whitespace-and-comments) | |
1778 | (let ((s (point))) | |
1779 | (gud-jdb-skip-id-ish-thing) | |
1780 | (setq | |
1781 | l (nconc l (list (concat p (buffer-substring s (point))))))) | |
1782 | (gud-jdb-skip-block)) | |
1783 | ||
1784 | ;; Move point past an interface statement. | |
1785 | ((looking-at "interface") | |
1786 | (forward-char 9) | |
1787 | (gud-jdb-skip-block)) | |
1788 | ||
1789 | ;; Anything else means the input is invalid. | |
1790 | (t | |
1791 | (message (format "Error parsing file %s." file)) | |
1792 | (throw 'abort nil)))))) | |
1793 | l)) | |
35dd3c55 KH |
1794 | |
1795 | (defun gud-jdb-build-class-source-alist-for-file (file) | |
1796 | (mapcar | |
1797 | (lambda (c) | |
f4b643a1 | 1798 | (cons c file)) |
35dd3c55 | 1799 | (gud-jdb-analyze-source gud-jdb-analysis-buffer file))) |
c3fd0eea | 1800 | |
c3fd0eea RS |
1801 | ;; Return an alist of fully qualified classes and the source files |
1802 | ;; holding their definitions. SOURCES holds a list of all the source | |
1803 | ;; files to examine. | |
1804 | (defun gud-jdb-build-class-source-alist (sources) | |
b2e60475 | 1805 | (setq gud-jdb-analysis-buffer (get-buffer-create " *gud-jdb-scratch*")) |
35dd3c55 | 1806 | (prog1 |
f4b643a1 RS |
1807 | (apply |
1808 | 'nconc | |
1809 | (mapcar | |
1810 | 'gud-jdb-build-class-source-alist-for-file | |
1811 | sources)) | |
1812 | (kill-buffer gud-jdb-analysis-buffer) | |
1813 | (setq gud-jdb-analysis-buffer nil))) | |
c3fd0eea RS |
1814 | |
1815 | ;; Change what was given in the minibuffer to something that can be used to | |
1816 | ;; invoke the debugger. | |
1817 | (defun gud-jdb-massage-args (file args) | |
1818 | ;; The jdb executable must have whitespace between "-classpath" and | |
f4b643a1 | 1819 | ;; its value while gud-common-init expects all switch values to |
f5851398 | 1820 | ;; follow the switch keyword without intervening whitespace. We |
c3fd0eea RS |
1821 | ;; require that when the user enters the "-classpath" switch in the |
1822 | ;; EMACS minibuffer that they do so without the intervening | |
1823 | ;; whitespace. This function adds it back (it's called after | |
f5851398 | 1824 | ;; gud-common-init). There are more switches like this (for |
c3fd0eea RS |
1825 | ;; instance "-host" and "-password") but I don't care about them |
1826 | ;; yet. | |
1827 | (if args | |
f4b643a1 RS |
1828 | (let (massaged-args user-error) |
1829 | ||
e78e1cd1 EZ |
1830 | (while (and args (not user-error)) |
1831 | (cond | |
1832 | ((setq user-error (string-match "-classpath$" (car args)))) | |
1833 | ((setq user-error (string-match "-sourcepath$" (car args)))) | |
1834 | ((string-match "-classpath\\(.+\\)" (car args)) | |
1835 | (setq massaged-args | |
1836 | (append massaged-args | |
1837 | (list "-classpath") | |
1838 | (list | |
1839 | (setq gud-jdb-classpath-string | |
1840 | (substring | |
1841 | (car args) | |
1842 | (match-beginning 1) (match-end 1))))))) | |
1843 | ((string-match "-sourcepath\\(.+\\)" (car args)) | |
1844 | (setq massaged-args | |
1845 | (append massaged-args | |
1846 | (list "-sourcepath") | |
1847 | (list | |
1848 | (setq gud-jdb-sourcepath | |
1849 | (substring | |
1850 | (car args) | |
1851 | (match-beginning 1) (match-end 1))))))) | |
1852 | (t (setq massaged-args (append massaged-args (list (car args)))))) | |
f4b643a1 RS |
1853 | (setq args (cdr args))) |
1854 | ||
1855 | ;; By this point the current directory is all screwed up. Maybe we | |
1856 | ;; could fix things and re-invoke gud-common-init, but for now I think | |
1857 | ;; issueing the error is good enough. | |
1858 | (if user-error | |
1859 | (progn | |
1860 | (kill-buffer (current-buffer)) | |
e78e1cd1 EZ |
1861 | (error "Error: Omit whitespace between '-classpath or -sourcepath' and its value"))) |
1862 | massaged-args))) | |
c3fd0eea RS |
1863 | |
1864 | ;; Search for an association with P, a fully qualified class name, in | |
f5851398 | 1865 | ;; gud-jdb-class-source-alist. The asssociation gives the fully |
c3fd0eea RS |
1866 | ;; qualified file name of the source file which produced the class. |
1867 | (defun gud-jdb-find-source-file (p) | |
1868 | (cdr (assoc p gud-jdb-class-source-alist))) | |
1869 | ||
2ef4e909 RS |
1870 | ;; Note: Reset to this value every time a prompt is seen |
1871 | (defvar gud-jdb-lowest-stack-level 999) | |
1872 | ||
1873 | (defun gud-jdb-find-source-using-classpath (p) | |
1874 | "Find source file corresponding to fully qualified class p. | |
1875 | Convert p from jdb's output, converted to a pathname | |
1876 | relative to a classpath directory." | |
1877 | (save-match-data | |
1878 | (let | |
1879 | (;; Replace dots with slashes and append ".java" to generate file | |
1880 | ;; name relative to classpath | |
1881 | (filename | |
f5851398 EZ |
1882 | (concat |
1883 | (mapconcat (lambda (x) x) | |
1884 | (split-string | |
1885 | ;; Eliminate any subclass references in the class | |
1886 | ;; name string. These start with a "$" | |
1887 | ((lambda (x) | |
1888 | (if (string-match "$.*" x) | |
1889 | (replace-match "" t t x) p)) | |
1890 | p) | |
1891 | "\\.") "/") | |
1892 | ".java")) | |
e78e1cd1 | 1893 | (cplist (append gud-jdb-sourcepath gud-jdb-classpath)) |
2ef4e909 RS |
1894 | found-file) |
1895 | (while (and cplist | |
f5851398 EZ |
1896 | (not (setq found-file |
1897 | (file-readable-p | |
1898 | (concat (car cplist) "/" filename))))) | |
2ef4e909 RS |
1899 | (setq cplist (cdr cplist))) |
1900 | (if found-file (concat (car cplist) "/" filename))))) | |
1901 | ||
1902 | (defun gud-jdb-find-source (string) | |
1903 | "Alias for function used to locate source files. | |
1904 | Set to `gud-jdb-find-source-using-classpath' or `gud-jdb-find-source-file' | |
1905 | during jdb initialization depending on the value of | |
1906 | `gud-jdb-use-classpath'." | |
1907 | nil) | |
1908 | ||
1909 | (defun gud-jdb-parse-classpath-string (string) | |
1910 | "Parse the classpath list and convert each item to an absolute pathname." | |
e78e1cd1 | 1911 | (mapcar (lambda (s) (if (string-match "[/\\]$" s) |
f5851398 EZ |
1912 | (replace-match "" nil nil s) s)) |
1913 | (mapcar 'file-truename | |
1914 | (split-string | |
1915 | string | |
1916 | (concat "[ \t\n\r,\"" path-separator "]+"))))) | |
2ef4e909 | 1917 | |
c3fd0eea RS |
1918 | ;; See comentary for other debugger's marker filters - there you will find |
1919 | ;; important notes about STRING. | |
1920 | (defun gud-jdb-marker-filter (string) | |
1921 | ||
1922 | ;; Build up the accumulator. | |
1923 | (setq gud-marker-acc | |
f4b643a1 RS |
1924 | (if gud-marker-acc |
1925 | (concat gud-marker-acc string) | |
1926 | string)) | |
c3fd0eea | 1927 | |
2ef4e909 | 1928 | ;; Look for classpath information until gud-jdb-classpath-string is found |
e78e1cd1 EZ |
1929 | ;; (interactive, multiple settings of classpath from jdb |
1930 | ;; not supported/followed) | |
2ef4e909 | 1931 | (if (and gud-jdb-use-classpath |
f5851398 EZ |
1932 | (not gud-jdb-classpath-string) |
1933 | (or (string-match "classpath:[ \t[]+\\([^]]+\\)" gud-marker-acc) | |
1934 | (string-match "-classpath[ \t\"]+\\([^ \"]+\\)" gud-marker-acc))) | |
2ef4e909 | 1935 | (setq gud-jdb-classpath |
f5851398 EZ |
1936 | (gud-jdb-parse-classpath-string |
1937 | (setq gud-jdb-classpath-string | |
1938 | (substring gud-marker-acc | |
1939 | (match-beginning 1) (match-end 1)))))) | |
2ef4e909 RS |
1940 | |
1941 | ;; We process STRING from left to right. Each time through the | |
1942 | ;; following loop we process at most one marker. After we've found a | |
1943 | ;; marker, delete gud-marker-acc up to and including the match | |
1944 | (let (file-found) | |
1945 | ;; Process each complete marker in the input. | |
f4b643a1 RS |
1946 | (while |
1947 | ||
1948 | ;; Do we see a marker? | |
1949 | (string-match | |
1950 | ;; jdb puts out a string of the following form when it | |
1951 | ;; hits a breakpoint: | |
1952 | ;; | |
f5851398 | 1953 | ;; <fully-qualified-class><method> (<class>:<line-number>) |
f4b643a1 RS |
1954 | ;; |
1955 | ;; <fully-qualified-class>'s are composed of Java ID's | |
1956 | ;; separated by periods. <method> and <class> are | |
1957 | ;; also Java ID's. <method> begins with a period and | |
1958 | ;; may contain less-than and greater-than (constructors, | |
1959 | ;; for instance, are called <init> in the symbol table.) | |
1960 | ;; Java ID's begin with a letter followed by letters | |
1961 | ;; and/or digits. The set of letters includes underscore | |
1962 | ;; and dollar sign. | |
1963 | ;; | |
1964 | ;; The first group matches <fully-qualified-class>, | |
1965 | ;; the second group matches <class> and the third group | |
1966 | ;; matches <line-number>. We don't care about using | |
1967 | ;; <method> so we don't "group" it. | |
1968 | ;; | |
1969 | ;; FIXME: Java ID's are UNICODE strings, this matches ASCII | |
1970 | ;; ID's only. | |
2ef4e909 RS |
1971 | "\\(\[[0-9]+\] \\)*\\([a-zA-Z0-9.$_]+\\)\\.[a-zA-Z0-9$_<>(),]+ \ |
1972 | \\(([a-zA-Z0-9.$_]+:\\|line=\\)\\([0-9]+\\)" | |
1973 | gud-marker-acc) | |
1974 | ||
1975 | ;; A good marker is one that: | |
1976 | ;; 1) does not have a "[n] " prefix (not part of a stack backtrace) | |
1977 | ;; 2) does have an "[n] " prefix and n is the lowest prefix seen | |
1978 | ;; since the last prompt | |
f4b643a1 RS |
1979 | ;; Figure out the line on which to position the debugging arrow. |
1980 | ;; Return the info as a cons of the form: | |
1981 | ;; | |
1982 | ;; (<file-name> . <line-number>) . | |
2ef4e909 RS |
1983 | (if (if (match-beginning 1) |
1984 | (let (n) | |
1985 | (setq n (string-to-int (substring | |
1986 | gud-marker-acc | |
1987 | (1+ (match-beginning 1)) | |
1988 | (- (match-end 1) 2)))) | |
1989 | (if (< n gud-jdb-lowest-stack-level) | |
1990 | (progn (setq gud-jdb-lowest-stack-level n) t))) | |
f5851398 | 1991 | t) |
2ef4e909 RS |
1992 | (if (setq file-found |
1993 | (gud-jdb-find-source | |
1994 | (substring gud-marker-acc | |
1995 | (match-beginning 2) | |
1996 | (match-end 2)))) | |
1997 | (setq gud-last-frame | |
1998 | (cons file-found | |
1999 | (string-to-int | |
2000 | (substring gud-marker-acc | |
2001 | (match-beginning 4) | |
2002 | (match-end 4))))) | |
2003 | (message "Could not find source file."))) | |
2004 | ||
2005 | ;; Set the accumulator to the remaining text. | |
2006 | (setq gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
2007 | ||
2008 | (if (string-match comint-prompt-regexp gud-marker-acc) | |
2009 | (setq gud-jdb-lowest-stack-level 999))) | |
2010 | ||
2011 | ;; Do not allow gud-marker-acc to grow without bound. If the source | |
2012 | ;; file information is not within the last 3/4 | |
2013 | ;; gud-marker-acc-max-length characters, well,... | |
2014 | (if (> (length gud-marker-acc) gud-marker-acc-max-length) | |
2015 | (setq gud-marker-acc | |
f5851398 EZ |
2016 | (substring gud-marker-acc |
2017 | (- (/ (* gud-marker-acc-max-length 3) 4))))) | |
c3fd0eea RS |
2018 | |
2019 | ;; We don't filter any debugger output so just return what we were given. | |
2020 | string) | |
2021 | ||
2022 | (defun gud-jdb-find-file (f) | |
2023 | (and (file-readable-p f) | |
f4b643a1 | 2024 | (find-file-noselect f))) |
c3fd0eea | 2025 | |
c3fd0eea RS |
2026 | ;;;###autoload |
2027 | (defun jdb (command-line) | |
aa3b6a3f PJ |
2028 | "Run jdb with command line COMMAND-LINE in a buffer. |
2029 | The buffer is named \"*gud*\" if no initial class is given or | |
f5851398 | 2030 | \"*gud-<initial-class-basename>*\" if there is. If the \"-classpath\" |
2ef4e909 RS |
2031 | switch is given, omit all whitespace between it and its value. |
2032 | ||
2033 | See `gud-jdb-use-classpath' and `gud-jdb-classpath' documentation for | |
2034 | information on how jdb accesses source files. Alternatively (if | |
2035 | `gud-jdb-use-classpath' is nil), see `gud-jdb-directories' for the | |
2036 | original source file access method. | |
2037 | ||
2038 | For general information about commands available to control jdb from | |
2039 | gud, see `gud-mode'." | |
c3fd0eea | 2040 | (interactive |
c157af51 | 2041 | (list (gud-query-cmdline 'jdb))) |
e78e1cd1 EZ |
2042 | (setq gud-jdb-classpath nil) |
2043 | (setq gud-jdb-sourcepath nil) | |
c3fd0eea | 2044 | |
2ef4e909 RS |
2045 | ;; Set gud-jdb-classpath from the CLASSPATH environment variable, |
2046 | ;; if CLASSPATH is set. | |
2047 | (setq gud-jdb-classpath-string (getenv "CLASSPATH")) | |
2048 | (if gud-jdb-classpath-string | |
2049 | (setq gud-jdb-classpath | |
f5851398 EZ |
2050 | (gud-jdb-parse-classpath-string gud-jdb-classpath-string))) |
2051 | (setq gud-jdb-classpath-string nil) ; prepare for next | |
2ef4e909 | 2052 | |
c3fd0eea | 2053 | (gud-common-init command-line 'gud-jdb-massage-args |
2ef4e909 | 2054 | 'gud-jdb-marker-filter 'gud-jdb-find-file) |
c157af51 | 2055 | (set (make-local-variable 'gud-minor-mode) 'jdb) |
c3fd0eea | 2056 | |
2ef4e909 RS |
2057 | ;; If a -classpath option was provided, set gud-jdb-classpath |
2058 | (if gud-jdb-classpath-string | |
2059 | (setq gud-jdb-classpath | |
2060 | (gud-jdb-parse-classpath-string gud-jdb-classpath-string))) | |
f5851398 | 2061 | (setq gud-jdb-classpath-string nil) ; prepare for next |
e78e1cd1 EZ |
2062 | ;; If a -sourcepath option was provided, parse it |
2063 | (if gud-jdb-sourcepath | |
2064 | (setq gud-jdb-sourcepath | |
f5851398 | 2065 | (gud-jdb-parse-classpath-string gud-jdb-sourcepath))) |
2ef4e909 RS |
2066 | |
2067 | (gud-def gud-break "stop at %c:%l" "\C-b" "Set breakpoint at current line.") | |
2068 | (gud-def gud-remove "clear %c:%l" "\C-d" "Remove breakpoint at current line") | |
f5851398 EZ |
2069 | (gud-def gud-step "step" "\C-s" "Step one source line with display.") |
2070 | (gud-def gud-next "next" "\C-n" "Step one line (skip functions).") | |
2071 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
2072 | (gud-def gud-finish "step up" "\C-f" "Continue until current method returns.") | |
2ef4e909 RS |
2073 | (gud-def gud-up "up\C-Mwhere" "<" "Up one stack frame.") |
2074 | (gud-def gud-down "down\C-Mwhere" ">" "Up one stack frame.") | |
2075 | (local-set-key [menu-bar debug finish] '("Finish Function" . gud-finish)) | |
2076 | (local-set-key [menu-bar debug up] '("Up Stack" . gud-up)) | |
2077 | (local-set-key [menu-bar debug down] '("Down Stack" . gud-down)) | |
c3fd0eea | 2078 | |
2ef4e909 | 2079 | (setq comint-prompt-regexp "^> \\|^[^ ]+\\[[0-9]+\\] ") |
c3fd0eea RS |
2080 | (setq paragraph-start comint-prompt-regexp) |
2081 | (run-hooks 'jdb-mode-hook) | |
2082 | ||
2ef4e909 | 2083 | (if gud-jdb-use-classpath |
e78e1cd1 | 2084 | ;; Get the classpath information from the debugger |
2ef4e909 | 2085 | (progn |
f5851398 EZ |
2086 | (if (string-match "-attach" command-line) |
2087 | (gud-call "classpath")) | |
2088 | (fset 'gud-jdb-find-source | |
2089 | 'gud-jdb-find-source-using-classpath)) | |
2ef4e909 RS |
2090 | |
2091 | ;; Else create and bind the class/source association list as well | |
2092 | ;; as the source file list. | |
2093 | (setq gud-jdb-class-source-alist | |
f5851398 EZ |
2094 | (gud-jdb-build-class-source-alist |
2095 | (setq gud-jdb-source-files | |
2096 | (gud-jdb-build-source-files-list gud-jdb-directories | |
2097 | "\\.java$")))) | |
2ef4e909 | 2098 | (fset 'gud-jdb-find-source 'gud-jdb-find-source-file))) |
c3fd0eea | 2099 | \f |
6496f3d2 | 2100 | |
13b80a60 ER |
2101 | ;; |
2102 | ;; End of debugger-specific information | |
10a4c11f | 2103 | ;; |
13b80a60 | 2104 | |
575661b1 | 2105 | \f |
53eb3a97 JB |
2106 | ;;; When we send a command to the debugger via gud-call, it's annoying |
2107 | ;;; to see the command and the new prompt inserted into the debugger's | |
2108 | ;;; buffer; we have other ways of knowing the command has completed. | |
2109 | ;;; | |
2110 | ;;; If the buffer looks like this: | |
2111 | ;;; -------------------- | |
2112 | ;;; (gdb) set args foo bar | |
2113 | ;;; (gdb) -!- | |
2114 | ;;; -------------------- | |
2115 | ;;; (the -!- marks the location of point), and we type `C-x SPC' in a | |
2116 | ;;; source file to set a breakpoint, we want the buffer to end up like | |
2117 | ;;; this: | |
2118 | ;;; -------------------- | |
2119 | ;;; (gdb) set args foo bar | |
2120 | ;;; Breakpoint 1 at 0x92: file make-docfile.c, line 49. | |
2121 | ;;; (gdb) -!- | |
2122 | ;;; -------------------- | |
2123 | ;;; Essentially, the old prompt is deleted, and the command's output | |
2124 | ;;; and the new prompt take its place. | |
2125 | ;;; | |
2126 | ;;; Not echoing the command is easy enough; you send it directly using | |
2127 | ;;; process-send-string, and it never enters the buffer. However, | |
2128 | ;;; getting rid of the old prompt is trickier; you don't want to do it | |
2129 | ;;; when you send the command, since that will result in an annoying | |
2130 | ;;; flicker as the prompt is deleted, redisplay occurs while Emacs | |
2131 | ;;; waits for a response from the debugger, and the new prompt is | |
2132 | ;;; inserted. Instead, we'll wait until we actually get some output | |
2133 | ;;; from the subprocess before we delete the prompt. If the command | |
2134 | ;;; produced no output other than a new prompt, that prompt will most | |
2135 | ;;; likely be in the first chunk of output received, so we will delete | |
2136 | ;;; the prompt and then replace it with an identical one. If the | |
2137 | ;;; command produces output, the prompt is moving anyway, so the | |
2138 | ;;; flicker won't be annoying. | |
2139 | ;;; | |
2140 | ;;; So - when we want to delete the prompt upon receipt of the next | |
2141 | ;;; chunk of debugger output, we position gud-delete-prompt-marker at | |
2142 | ;;; the start of the prompt; the process filter will notice this, and | |
2143 | ;;; delete all text between it and the process output marker. If | |
2144 | ;;; gud-delete-prompt-marker points nowhere, we leave the current | |
2145 | ;;; prompt alone. | |
2146 | (defvar gud-delete-prompt-marker nil) | |
2147 | ||
13b80a60 | 2148 | \f |
c47264b3 RS |
2149 | (put 'gud-mode 'mode-class 'special) |
2150 | ||
c157af51 | 2151 | (define-derived-mode gud-mode comint-mode "Debugger" |
13b80a60 | 2152 | "Major mode for interacting with an inferior debugger process. |
24d725c2 | 2153 | |
6496f3d2 | 2154 | You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx, |
2ef4e909 | 2155 | M-x perldb, M-x xdb, or M-x jdb. Each entry point finishes by executing a |
b0764b2d | 2156 | hook; `gdb-mode-hook', `sdb-mode-hook', `dbx-mode-hook', |
2ef4e909 | 2157 | `perldb-mode-hook', `xdb-mode-hook', or `jdb-mode-hook' respectively. |
24d725c2 | 2158 | |
ee0155df ER |
2159 | After startup, the following commands are available in both the GUD |
2160 | interaction buffer and any source buffer GUD visits due to a breakpoint stop | |
2161 | or step operation: | |
13b80a60 | 2162 | |
ee0155df ER |
2163 | \\[gud-break] sets a breakpoint at the current file and line. In the |
2164 | GUD buffer, the current file and line are those of the last breakpoint or | |
2165 | step. In a source buffer, they are the buffer's file and current line. | |
2166 | ||
45025813 ER |
2167 | \\[gud-remove] removes breakpoints on the current file and line. |
2168 | ||
ee0155df | 2169 | \\[gud-refresh] displays in the source window the last line referred to |
24d725c2 | 2170 | in the gud buffer. |
13b80a60 | 2171 | |
ee0155df ER |
2172 | \\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line, |
2173 | step-one-line (not entering function calls), and step-one-instruction | |
2174 | and then update the source window with the current file and position. | |
2175 | \\[gud-cont] continues execution. | |
13b80a60 | 2176 | |
ee0155df ER |
2177 | \\[gud-print] tries to find the largest C lvalue or function-call expression |
2178 | around point, and sends it to the debugger for value display. | |
24d725c2 | 2179 | |
6496f3d2 RS |
2180 | The above commands are common to all supported debuggers except xdb which |
2181 | does not support stepping instructions. | |
24d725c2 | 2182 | |
6496f3d2 | 2183 | Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break], |
ee0155df ER |
2184 | except that the breakpoint is temporary; that is, it is removed when |
2185 | execution stops on it. | |
24d725c2 | 2186 | |
6496f3d2 | 2187 | Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack |
f5851398 | 2188 | frame. \\[gud-down] drops back down through one. |
24d725c2 | 2189 | |
6496f3d2 | 2190 | If you are using gdb or xdb, \\[gud-finish] runs execution to the return from |
ee0155df | 2191 | the current function and stops. |
24d725c2 | 2192 | |
dcec1a3b RS |
2193 | All the keystrokes above are accessible in the GUD buffer |
2194 | with the prefix C-c, and in all buffers through the prefix C-x C-a. | |
45025813 | 2195 | |
ee0155df ER |
2196 | All pre-defined functions for which the concept make sense repeat |
2197 | themselves the appropriate number of times if you give a prefix | |
2198 | argument. | |
13b80a60 | 2199 | |
dcec1a3b | 2200 | You may use the `gud-def' macro in the initialization hook to define other |
ee0155df | 2201 | commands. |
13b80a60 | 2202 | |
24d725c2 ER |
2203 | Other commands for interacting with the debugger process are inherited from |
2204 | comint mode, which see." | |
0b358e64 | 2205 | (setq mode-line-process '(":%s")) |
2b64612d | 2206 | (define-key (current-local-map) "\C-c\C-l" 'gud-refresh) |
c157af51 | 2207 | (set (make-local-variable 'gud-last-frame) nil) |
13b80a60 | 2208 | (make-local-variable 'comint-prompt-regexp) |
aa9063cb | 2209 | ;; Don't put repeated commands in command history many times. |
c157af51 | 2210 | (set (make-local-variable 'comint-input-ignoredups) t) |
f54877b2 | 2211 | (make-local-variable 'paragraph-start) |
c157af51 | 2212 | (set (make-local-variable 'gud-delete-prompt-marker) (make-marker))) |
a223b10d | 2213 | |
18aa807e RS |
2214 | ;; Cause our buffers to be displayed, by default, |
2215 | ;; in the selected window. | |
2216 | ;;;###autoload (add-hook 'same-window-regexps "\\*gud-.*\\*\\(\\|<[0-9]+>\\)") | |
2217 | ||
d2d1851b SM |
2218 | (defcustom gud-chdir-before-run t |
2219 | "Non-nil if GUD should `cd' to the debugged executable." | |
2220 | :group 'gud | |
2221 | :type 'boolean) | |
2222 | ||
a223b10d | 2223 | ;; Perform initializations common to all debuggers. |
ee97eac3 RS |
2224 | ;; The first arg is the specified command line, |
2225 | ;; which starts with the program to debug. | |
2226 | ;; The other three args specify the values to use | |
2227 | ;; for local variables in the debugger buffer. | |
d2d1851b | 2228 | (defun gud-common-init (command-line massage-args marker-filter &optional find-file) |
c157af51 | 2229 | (let* ((words (split-string command-line)) |
a223b10d | 2230 | (program (car words)) |
dfbd82a6 RS |
2231 | ;; Extract the file name from WORDS |
2232 | ;; and put t in its place. | |
2233 | ;; Later on we will put the modified file name arg back there. | |
a223b10d RM |
2234 | (file-word (let ((w (cdr words))) |
2235 | (while (and w (= ?- (aref (car w) 0))) | |
2236 | (setq w (cdr w))) | |
c27c1042 KH |
2237 | (and w |
2238 | (prog1 (car w) | |
2239 | (setcar w t))))) | |
0ec5b01d RS |
2240 | (file-subst |
2241 | (and file-word (substitute-in-file-name file-word))) | |
dfbd82a6 | 2242 | (args (cdr words)) |
0ec5b01d RS |
2243 | ;; If a directory was specified, expand the file name. |
2244 | ;; Otherwise, don't expand it, so GDB can use the PATH. | |
2245 | ;; A file name without directory is literally valid | |
2246 | ;; only if the file exists in ., and in that case, | |
2247 | ;; omitting the expansion here has no visible effect. | |
52b85866 | 2248 | (file (and file-word |
0ec5b01d RS |
2249 | (if (file-name-directory file-subst) |
2250 | (expand-file-name file-subst) | |
2251 | file-subst))) | |
c27c1042 | 2252 | (filepart (and file-word (concat "-" (file-name-nondirectory file))))) |
18aa807e | 2253 | (pop-to-buffer (concat "*gud" filepart "*")) |
0ec5b01d RS |
2254 | ;; Set default-directory to the file's directory. |
2255 | (and file-word | |
d2d1851b | 2256 | gud-chdir-before-run |
0ec5b01d RS |
2257 | ;; Don't set default-directory if no directory was specified. |
2258 | ;; In that case, either the file is found in the current directory, | |
2259 | ;; in which case this setq is a no-op, | |
2260 | ;; or it is found by searching PATH, | |
2261 | ;; in which case we don't know what directory it was found in. | |
2262 | (file-name-directory file) | |
2263 | (setq default-directory (file-name-directory file))) | |
ee97eac3 RS |
2264 | (or (bolp) (newline)) |
2265 | (insert "Current directory is " default-directory "\n") | |
dfbd82a6 RS |
2266 | ;; Put the substituted and expanded file name back in its place. |
2267 | (let ((w args)) | |
2268 | (while (and w (not (eq (car w) t))) | |
2269 | (setq w (cdr w))) | |
c27c1042 KH |
2270 | (if w |
2271 | (setcar w file))) | |
2272 | (apply 'make-comint (concat "gud" filepart) program nil | |
2b1ffa34 | 2273 | (funcall massage-args file args))) |
ee97eac3 | 2274 | ;; Since comint clobbered the mode, we don't set it until now. |
13b80a60 | 2275 | (gud-mode) |
ee97eac3 RS |
2276 | (make-local-variable 'gud-marker-filter) |
2277 | (setq gud-marker-filter marker-filter) | |
d2d1851b | 2278 | (if find-file (set (make-local-variable 'gud-find-file) find-file)) |
ee97eac3 | 2279 | |
13b80a60 ER |
2280 | (set-process-filter (get-buffer-process (current-buffer)) 'gud-filter) |
2281 | (set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel) | |
c157af51 | 2282 | (gud-set-buffer)) |
13b80a60 ER |
2283 | |
2284 | (defun gud-set-buffer () | |
c157af51 SM |
2285 | (when (eq major-mode 'gud-mode) |
2286 | (setq gud-comint-buffer (current-buffer)))) | |
ee0155df | 2287 | |
11736488 RS |
2288 | (defvar gud-filter-defer-flag nil |
2289 | "Non-nil means don't process anything from the debugger right now. | |
2290 | It is saved for when this flag is not set.") | |
2291 | ||
2292 | (defvar gud-filter-pending-text nil | |
2293 | "Non-nil means this is text that has been saved for later in `gud-filter'.") | |
2294 | ||
ee0155df ER |
2295 | ;; These functions are responsible for inserting output from your debugger |
2296 | ;; into the buffer. The hard work is done by the method that is | |
2297 | ;; the value of gud-marker-filter. | |
13b80a60 | 2298 | |
ee0155df | 2299 | (defun gud-filter (proc string) |
13b80a60 | 2300 | ;; Here's where the actual buffer insertion is done |
7f4bda7c | 2301 | (let (output process-window) |
c561a0cb | 2302 | (if (buffer-name (process-buffer proc)) |
11736488 RS |
2303 | (if gud-filter-defer-flag |
2304 | ;; If we can't process any text now, | |
2305 | ;; save it for later. | |
2306 | (setq gud-filter-pending-text | |
2307 | (concat (or gud-filter-pending-text "") string)) | |
c7856dbe RS |
2308 | |
2309 | ;; If we have to ask a question during the processing, | |
2310 | ;; defer any additional text that comes from the debugger | |
2311 | ;; during that time. | |
2312 | (let ((gud-filter-defer-flag t)) | |
2313 | ;; Process now any text we previously saved up. | |
2314 | (if gud-filter-pending-text | |
2315 | (setq string (concat gud-filter-pending-text string) | |
2316 | gud-filter-pending-text nil)) | |
f09b5567 MB |
2317 | |
2318 | (with-current-buffer (process-buffer proc) | |
11736488 | 2319 | ;; If we have been so requested, delete the debugger prompt. |
136b4eda MB |
2320 | (save-restriction |
2321 | (widen) | |
2322 | (if (marker-buffer gud-delete-prompt-marker) | |
2323 | (progn | |
2324 | (delete-region (process-mark proc) | |
2325 | gud-delete-prompt-marker) | |
2326 | (set-marker gud-delete-prompt-marker nil))) | |
2327 | ;; Save the process output, checking for source file markers. | |
2328 | (setq output (gud-marker-filter string)) | |
2329 | ;; Check for a filename-and-line number. | |
2330 | ;; Don't display the specified file | |
2331 | ;; unless (1) point is at or after the position where output appears | |
2332 | ;; and (2) this buffer is on the screen. | |
2333 | (setq process-window | |
2334 | (and gud-last-frame | |
2335 | (>= (point) (process-mark proc)) | |
2336 | (get-buffer-window (current-buffer))))) | |
c7856dbe RS |
2337 | |
2338 | ;; Let the comint filter do the actual insertion. | |
2339 | ;; That lets us inherit various comint features. | |
88be0819 RS |
2340 | (comint-output-filter proc output)) |
2341 | ||
2342 | ;; Put the arrow on the source line. | |
2343 | ;; This must be outside of the save-excursion | |
2344 | ;; in case the source file is our current buffer. | |
2345 | (if process-window | |
2346 | (save-selected-window | |
2347 | (select-window process-window) | |
2348 | (gud-display-frame)) | |
2349 | ;; We have to be in the proper buffer, (process-buffer proc), | |
2350 | ;; but not in a save-excursion, because that would restore point. | |
2351 | (let ((old-buf (current-buffer))) | |
2352 | (set-buffer (process-buffer proc)) | |
2353 | (unwind-protect | |
2354 | (gud-display-frame) | |
2355 | (set-buffer old-buf))))) | |
c7856dbe RS |
2356 | |
2357 | ;; If we deferred text that arrived during this processing, | |
2358 | ;; handle it now. | |
2359 | (if gud-filter-pending-text | |
2360 | (gud-filter proc "")))))) | |
13b80a60 ER |
2361 | |
2362 | (defun gud-sentinel (proc msg) | |
2363 | (cond ((null (buffer-name (process-buffer proc))) | |
2364 | ;; buffer killed | |
2365 | ;; Stop displaying an arrow in a source file. | |
2366 | (setq overlay-arrow-position nil) | |
2367 | (set-process-buffer proc nil)) | |
2368 | ((memq (process-status proc) '(signal exit)) | |
2369 | ;; Stop displaying an arrow in a source file. | |
2370 | (setq overlay-arrow-position nil) | |
13b80a60 ER |
2371 | (let* ((obuf (current-buffer))) |
2372 | ;; save-excursion isn't the right thing if | |
2373 | ;; process-buffer is current-buffer | |
2374 | (unwind-protect | |
2375 | (progn | |
2376 | ;; Write something in *compilation* and hack its mode line, | |
2377 | (set-buffer (process-buffer proc)) | |
1a3ce5c4 AS |
2378 | ;; Fix the mode line. |
2379 | (setq mode-line-process | |
2380 | (concat ":" | |
2381 | (symbol-name (process-status proc)))) | |
e726eb56 | 2382 | (force-mode-line-update) |
13b80a60 ER |
2383 | (if (eobp) |
2384 | (insert ?\n mode-name " " msg) | |
2385 | (save-excursion | |
2386 | (goto-char (point-max)) | |
2387 | (insert ?\n mode-name " " msg))) | |
2388 | ;; If buffer and mode line will show that the process | |
2389 | ;; is dead, we can delete it now. Otherwise it | |
2390 | ;; will stay around until M-x list-processes. | |
2391 | (delete-process proc)) | |
2392 | ;; Restore old buffer, but don't restore old point | |
2393 | ;; if obuf is the gud buffer. | |
2394 | (set-buffer obuf)))))) | |
2395 | ||
13b80a60 ER |
2396 | (defun gud-display-frame () |
2397 | "Find and obey the last filename-and-line marker from the debugger. | |
2398 | Obeying it means displaying in another window the specified file and line." | |
2399 | (interactive) | |
2400 | (if gud-last-frame | |
ee0155df | 2401 | (progn |
13b80a60 ER |
2402 | (gud-set-buffer) |
2403 | (gud-display-line (car gud-last-frame) (cdr gud-last-frame)) | |
32ab4c10 JB |
2404 | (setq gud-last-last-frame gud-last-frame |
2405 | gud-last-frame nil)))) | |
13b80a60 ER |
2406 | |
2407 | ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen | |
2408 | ;; and that its line LINE is visible. | |
2409 | ;; Put the overlay-arrow on the line LINE in that buffer. | |
ee0155df ER |
2410 | ;; Most of the trickiness in here comes from wanting to preserve the current |
2411 | ;; region-restriction if that's possible. We use an explicit display-buffer | |
2412 | ;; to get around the fact that this is called inside a save-excursion. | |
13b80a60 ER |
2413 | |
2414 | (defun gud-display-line (true-file line) | |
8f6c93e2 | 2415 | (let* ((last-nonmenu-event t) ; Prevent use of dialog box for questions. |
36d6372a RS |
2416 | (buffer |
2417 | (save-excursion | |
2418 | (or (eq (current-buffer) gud-comint-buffer) | |
2419 | (set-buffer gud-comint-buffer)) | |
2420 | (gud-find-file true-file))) | |
f55d65a1 RS |
2421 | (window (and buffer (or (get-buffer-window buffer) |
2422 | (display-buffer buffer)))) | |
13b80a60 | 2423 | (pos)) |
87a3fd19 RS |
2424 | (if buffer |
2425 | (progn | |
2426 | (save-excursion | |
2427 | (set-buffer buffer) | |
2428 | (save-restriction | |
2429 | (widen) | |
2430 | (goto-line line) | |
2431 | (setq pos (point)) | |
2432 | (setq overlay-arrow-string "=>") | |
2433 | (or overlay-arrow-position | |
2434 | (setq overlay-arrow-position (make-marker))) | |
2435 | (set-marker overlay-arrow-position (point) (current-buffer))) | |
2436 | (cond ((or (< pos (point-min)) (> pos (point-max))) | |
2437 | (widen) | |
2438 | (goto-char pos)))) | |
2439 | (set-window-point window overlay-arrow-position))))) | |
53eb3a97 | 2440 | |
ee0155df ER |
2441 | ;;; The gud-call function must do the right thing whether its invoking |
2442 | ;;; keystroke is from the GUD buffer itself (via major-mode binding) | |
5b08a462 ER |
2443 | ;;; or a C buffer. In the former case, we want to supply data from |
2444 | ;;; gud-last-frame. Here's how we do it: | |
13b80a60 | 2445 | |
ee0155df | 2446 | (defun gud-format-command (str arg) |
13eaa026 RS |
2447 | (let ((insource (not (eq (current-buffer) gud-comint-buffer))) |
2448 | (frame (or gud-last-frame gud-last-last-frame)) | |
2449 | result) | |
2ef4e909 | 2450 | (while (and str (string-match "\\([^%]*\\)%\\([adeflpc]\\)" str)) |
13eaa026 RS |
2451 | (let ((key (string-to-char (substring str (match-beginning 2)))) |
2452 | subst) | |
2453 | (cond | |
2454 | ((eq key ?f) | |
2455 | (setq subst (file-name-nondirectory (if insource | |
2456 | (buffer-file-name) | |
2457 | (car frame))))) | |
73739399 RS |
2458 | ((eq key ?F) |
2459 | (setq subst (file-name-sans-extension | |
2460 | (file-name-nondirectory (if insource | |
2461 | (buffer-file-name) | |
2462 | (car frame)))))) | |
13eaa026 RS |
2463 | ((eq key ?d) |
2464 | (setq subst (file-name-directory (if insource | |
7f359a21 | 2465 | (buffer-file-name) |
13eaa026 RS |
2466 | (car frame))))) |
2467 | ((eq key ?l) | |
38eba485 RS |
2468 | (setq subst (int-to-string |
2469 | (if insource | |
2470 | (save-restriction | |
2471 | (widen) | |
2472 | (+ (count-lines 1 (point)) | |
2473 | (if (bolp) 1 0))) | |
2474 | (cdr frame))))) | |
13eaa026 | 2475 | ((eq key ?e) |
ab4b0d2f | 2476 | (setq subst (gud-find-c-expr))) |
13eaa026 RS |
2477 | ((eq key ?a) |
2478 | (setq subst (gud-read-address))) | |
2ef4e909 RS |
2479 | ((eq key ?c) |
2480 | (setq subst (gud-find-class (if insource | |
2481 | (buffer-file-name) | |
2482 | (car frame))))) | |
13eaa026 | 2483 | ((eq key ?p) |
b2e60475 DL |
2484 | (setq subst (if arg (int-to-string arg))))) |
2485 | (setq result (concat result (match-string 1 str) subst))) | |
13eaa026 RS |
2486 | (setq str (substring str (match-end 2)))) |
2487 | ;; There might be text left in STR when the loop ends. | |
2488 | (concat result str))) | |
13b80a60 | 2489 | |
6bde8427 | 2490 | (defun gud-read-address () |
13b80a60 ER |
2491 | "Return a string containing the core-address found in the buffer at point." |
2492 | (save-excursion | |
6bde8427 | 2493 | (let ((pt (point)) found begin) |
ee0155df | 2494 | (setq found (if (search-backward "0x" (- pt 7) t) (point))) |
6bde8427 JB |
2495 | (cond |
2496 | (found (forward-char 2) | |
2497 | (buffer-substring found | |
2498 | (progn (re-search-forward "[^0-9a-f]") | |
2499 | (forward-char -1) | |
2500 | (point)))) | |
f4b643a1 | 2501 | (t (setq begin (progn (re-search-backward "[^0-9]") |
6bde8427 JB |
2502 | (forward-char 1) |
2503 | (point))) | |
2504 | (forward-char 1) | |
2505 | (re-search-forward "[^0-9]") | |
2506 | (forward-char -1) | |
2507 | (buffer-substring begin (point))))))) | |
13b80a60 | 2508 | |
ee0155df ER |
2509 | (defun gud-call (fmt &optional arg) |
2510 | (let ((msg (gud-format-command fmt arg))) | |
2511 | (message "Command: %s" msg) | |
2512 | (sit-for 0) | |
2513 | (gud-basic-call msg))) | |
13b80a60 | 2514 | |
ee0155df ER |
2515 | (defun gud-basic-call (command) |
2516 | "Invoke the debugger COMMAND displaying source in other window." | |
2517 | (interactive) | |
2518 | (gud-set-buffer) | |
2519 | (let ((command (concat command "\n")) | |
2520 | (proc (get-buffer-process gud-comint-buffer))) | |
4b8b296e | 2521 | (or proc (error "Current buffer has no process")) |
ee0155df ER |
2522 | ;; Arrange for the current prompt to get deleted. |
2523 | (save-excursion | |
2524 | (set-buffer gud-comint-buffer) | |
136b4eda MB |
2525 | (save-restriction |
2526 | (widen) | |
2527 | (goto-char (process-mark proc)) | |
2528 | (forward-line 0) | |
2529 | (if (looking-at comint-prompt-regexp) | |
2530 | (set-marker gud-delete-prompt-marker (point))))) | |
ee0155df ER |
2531 | (process-send-string proc command))) |
2532 | ||
2533 | (defun gud-refresh (&optional arg) | |
2534 | "Fix up a possibly garbled display, and redraw the arrow." | |
13b80a60 | 2535 | (interactive "P") |
32ab4c10 | 2536 | (or gud-last-frame (setq gud-last-frame gud-last-last-frame)) |
7ff24607 EZ |
2537 | (gud-display-frame) |
2538 | (recenter arg)) | |
dcec1a3b | 2539 | \f |
f5851398 | 2540 | ;;; Code for parsing expressions out of C code. The single entry point is |
ee0155df ER |
2541 | ;;; find-c-expr, which tries to return an lvalue expression from around point. |
2542 | ;;; | |
2543 | ;;; The rest of this file is a hacked version of gdbsrc.el by | |
2544 | ;;; Debby Ayers <ayers@asc.slb.com>, | |
2545 | ;;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx. | |
ee0155df | 2546 | |
ab4b0d2f | 2547 | (defun gud-find-c-expr () |
ee0155df ER |
2548 | "Returns the C expr that surrounds point." |
2549 | (interactive) | |
2550 | (save-excursion | |
ab4b0d2f | 2551 | (let (p expr test-expr) |
ee0155df | 2552 | (setq p (point)) |
ab4b0d2f RS |
2553 | (setq expr (gud-innermost-expr)) |
2554 | (setq test-expr (gud-prev-expr)) | |
2555 | (while (and test-expr (gud-expr-compound test-expr expr)) | |
2556 | (let ((prev-expr expr)) | |
2557 | (setq expr (cons (car test-expr) (cdr expr))) | |
2558 | (goto-char (car expr)) | |
2559 | (setq test-expr (gud-prev-expr)) | |
2560 | ;; If we just pasted on the condition of an if or while, | |
2561 | ;; throw it away again. | |
2562 | (if (member (buffer-substring (car test-expr) (cdr test-expr)) | |
2563 | '("if" "while" "for")) | |
2564 | (setq test-expr nil | |
2565 | expr prev-expr)))) | |
ee0155df | 2566 | (goto-char p) |
ab4b0d2f RS |
2567 | (setq test-expr (gud-next-expr)) |
2568 | (while (gud-expr-compound expr test-expr) | |
ee0155df | 2569 | (setq expr (cons (car expr) (cdr test-expr))) |
c157af51 | 2570 | (setq test-expr (gud-next-expr))) |
dcec1a3b | 2571 | (buffer-substring (car expr) (cdr expr))))) |
ee0155df | 2572 | |
ab4b0d2f RS |
2573 | (defun gud-innermost-expr () |
2574 | "Returns the smallest expr that point is in; move point to beginning of it. | |
ee0155df | 2575 | The expr is represented as a cons cell, where the car specifies the point in |
f4b643a1 | 2576 | the current buffer that marks the beginning of the expr and the cdr specifies |
dcec1a3b | 2577 | the character after the end of the expr." |
ab4b0d2f RS |
2578 | (let ((p (point)) begin end) |
2579 | (gud-backward-sexp) | |
ee0155df | 2580 | (setq begin (point)) |
ab4b0d2f | 2581 | (gud-forward-sexp) |
ee0155df | 2582 | (setq end (point)) |
f4b643a1 | 2583 | (if (>= p end) |
ee0155df ER |
2584 | (progn |
2585 | (setq begin p) | |
2586 | (goto-char p) | |
ab4b0d2f RS |
2587 | (gud-forward-sexp) |
2588 | (setq end (point))) | |
ee0155df ER |
2589 | ) |
2590 | (goto-char begin) | |
dcec1a3b | 2591 | (cons begin end))) |
ee0155df | 2592 | |
ab4b0d2f | 2593 | (defun gud-backward-sexp () |
dcec1a3b | 2594 | "Version of `backward-sexp' that catches errors." |
ee0155df ER |
2595 | (condition-case nil |
2596 | (backward-sexp) | |
2597 | (error t))) | |
2598 | ||
ab4b0d2f | 2599 | (defun gud-forward-sexp () |
dcec1a3b | 2600 | "Version of `forward-sexp' that catches errors." |
ee0155df ER |
2601 | (condition-case nil |
2602 | (forward-sexp) | |
2603 | (error t))) | |
2604 | ||
ab4b0d2f | 2605 | (defun gud-prev-expr () |
ee0155df ER |
2606 | "Returns the previous expr, point is set to beginning of that expr. |
2607 | The expr is represented as a cons cell, where the car specifies the point in | |
f4b643a1 | 2608 | the current buffer that marks the beginning of the expr and the cdr specifies |
ee0155df ER |
2609 | the character after the end of the expr" |
2610 | (let ((begin) (end)) | |
ab4b0d2f | 2611 | (gud-backward-sexp) |
ee0155df | 2612 | (setq begin (point)) |
ab4b0d2f | 2613 | (gud-forward-sexp) |
ee0155df ER |
2614 | (setq end (point)) |
2615 | (goto-char begin) | |
2616 | (cons begin end))) | |
2617 | ||
ab4b0d2f | 2618 | (defun gud-next-expr () |
ee0155df ER |
2619 | "Returns the following expr, point is set to beginning of that expr. |
2620 | The expr is represented as a cons cell, where the car specifies the point in | |
f4b643a1 | 2621 | the current buffer that marks the beginning of the expr and the cdr specifies |
dcec1a3b | 2622 | the character after the end of the expr." |
ee0155df | 2623 | (let ((begin) (end)) |
ab4b0d2f RS |
2624 | (gud-forward-sexp) |
2625 | (gud-forward-sexp) | |
ee0155df | 2626 | (setq end (point)) |
ab4b0d2f | 2627 | (gud-backward-sexp) |
ee0155df | 2628 | (setq begin (point)) |
dcec1a3b | 2629 | (cons begin end))) |
ee0155df | 2630 | |
ab4b0d2f RS |
2631 | (defun gud-expr-compound-sep (span-start span-end) |
2632 | "Scan from SPAN-START to SPAN-END for punctuation characters. | |
f5851398 | 2633 | If `->' is found, return `?.'. If `.' is found, return `?.'. |
ab4b0d2f RS |
2634 | If any other punctuation is found, return `??'. |
2635 | If no punctuation is found, return `? '." | |
2636 | (let ((result ?\ ) | |
ee0155df ER |
2637 | (syntax)) |
2638 | (while (< span-start span-end) | |
2639 | (setq syntax (char-syntax (char-after span-start))) | |
2640 | (cond | |
ab4b0d2f | 2641 | ((= syntax ?\ ) t) |
ee0155df | 2642 | ((= syntax ?.) (setq syntax (char-after span-start)) |
f4b643a1 | 2643 | (cond |
ee0155df ER |
2644 | ((= syntax ?.) (setq result ?.)) |
2645 | ((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>)) | |
2646 | (setq result ?.) | |
2647 | (setq span-start (+ span-start 1))) | |
2648 | (t (setq span-start span-end) | |
2649 | (setq result ??))))) | |
2650 | (setq span-start (+ span-start 1))) | |
dcec1a3b | 2651 | result)) |
ee0155df | 2652 | |
ab4b0d2f RS |
2653 | (defun gud-expr-compound (first second) |
2654 | "Non-nil if concatenating FIRST and SECOND makes a single C expression. | |
f4b643a1 RS |
2655 | The two exprs are represented as a cons cells, where the car |
2656 | specifies the point in the current buffer that marks the beginning of the | |
dcec1a3b | 2657 | expr and the cdr specifies the character after the end of the expr. |
ee0155df ER |
2658 | Link exprs of the form: |
2659 | Expr -> Expr | |
2660 | Expr . Expr | |
2661 | Expr (Expr) | |
2662 | Expr [Expr] | |
2663 | (Expr) Expr | |
2664 | [Expr] Expr" | |
2665 | (let ((span-start (cdr first)) | |
2666 | (span-end (car second)) | |
2667 | (syntax)) | |
ab4b0d2f | 2668 | (setq syntax (gud-expr-compound-sep span-start span-end)) |
ee0155df ER |
2669 | (cond |
2670 | ((= (car first) (car second)) nil) | |
2671 | ((= (cdr first) (cdr second)) nil) | |
2672 | ((= syntax ?.) t) | |
ab4b0d2f | 2673 | ((= syntax ?\ ) |
ee0155df ER |
2674 | (setq span-start (char-after (- span-start 1))) |
2675 | (setq span-end (char-after span-end)) | |
2676 | (cond | |
ab4b0d2f RS |
2677 | ((= span-start ?)) t) |
2678 | ((= span-start ?]) t) | |
f5851398 | 2679 | ((= span-end ?() t) |
ab4b0d2f RS |
2680 | ((= span-end ?[) t) |
2681 | (t nil))) | |
dcec1a3b | 2682 | (t nil)))) |
5b08a462 | 2683 | |
2ef4e909 RS |
2684 | (defun gud-find-class (f) |
2685 | "Find fully qualified class corresponding to file F. | |
e78e1cd1 EZ |
2686 | This function uses the `gud-jdb-classpath' (and optional |
2687 | `gud-jdb-sourcepath') list(s) to derive a file | |
2ef4e909 RS |
2688 | pathname relative to its classpath directory. The values in |
2689 | `gud-jdb-classpath' are assumed to have been converted to absolute | |
2690 | pathname standards using file-truename." | |
2691 | ;; Convert f to a standard representation and remove suffix | |
e78e1cd1 | 2692 | (if (and gud-jdb-use-classpath (or gud-jdb-classpath gud-jdb-sourcepath)) |
2ef4e909 | 2693 | (save-match-data |
f5851398 EZ |
2694 | (let ((cplist (append gud-jdb-sourcepath gud-jdb-classpath)) |
2695 | class-found) | |
2696 | (setq f (file-name-sans-extension (file-truename f))) | |
2697 | ;; Search through classpath list for an entry that is | |
2698 | ;; contained in f | |
2699 | (while (and cplist (not class-found)) | |
2700 | (if (string-match (car cplist) f) | |
2701 | (setq class-found | |
2702 | (mapconcat (lambda(x) x) | |
2703 | (split-string | |
2704 | (substring f (+ (match-end 0) 1)) | |
2705 | "/") "."))) | |
2706 | (setq cplist (cdr cplist))) | |
2707 | (if (not class-found) | |
2708 | (message "gud-find-class: class for file %s not found!" f)) | |
2709 | class-found)) | |
e78e1cd1 EZ |
2710 | ;; Not using classpath - try class/source association list |
2711 | (let ((class-found (rassoc f gud-jdb-class-source-alist))) | |
2712 | (if class-found | |
f5851398 EZ |
2713 | (car class-found) |
2714 | (message "gud-find-class: class for file %s not found in gud-jdb-class-source-alist!" f) | |
2715 | nil)))) | |
2ef4e909 | 2716 | |
96f4e22e RM |
2717 | (provide 'gud) |
2718 | ||
f961a17c | 2719 | ;;; gud.el ends here |