HCoop / bpt / emacs.git / blame
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| 0f9c2d46 JB |
1 | ;;; gud.el --- Grand Unified Debugger mode for running GDB and other debuggers |
| 2 | ||
| 3 | ;; Author: Eric S. Raymond <esr@snark.thyrsus.com> | |
| 4 | ;; Maintainer: FSF | |
| 5 | ;; Keywords: unix, tools | |
| 6 | ||
| 7 | ;; Copyright (C) 1992,93,94,95,96,1998,2000,02,2003 Free Software Foundation, Inc. | |
| 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 | |
| 13 | ;; the Free Software Foundation; either version 2, or (at your option) | |
| 14 | ;; any later version. | |
| 15 | ||
| 16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 19 | ;; GNU General Public License for more details. | |
| 20 | ||
| 21 | ;; You should have received a copy of the GNU General Public License | |
| 22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
| 23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 24 | ;; Boston, MA 02111-1307, USA. | |
| 25 | ||
| 26 | ;;; Commentary: | |
| 27 | ||
| 28 | ;; The ancestral gdb.el was by W. Schelter <wfs@rascal.ics.utexas.edu> | |
| 29 | ;; It was later rewritten by rms. Some ideas were due to Masanobu. | |
| 30 | ;; Grand Unification (sdb/dbx support) by Eric S. Raymond <esr@thyrsus.com> | |
| 31 | ;; The overloading code was then rewritten by Barry Warsaw <bwarsaw@cen.com>, | |
| 32 | ;; who also hacked the mode to use comint.el. Shane Hartman <shane@spr.com> | |
| 33 | ;; added support for xdb (HPUX debugger). Rick Sladkey <jrs@world.std.com> | |
| 34 | ;; wrote the GDB command completion code. Dave Love <d.love@dl.ac.uk> | |
| 35 | ;; added the IRIX kluge, re-implemented the Mips-ish variant and added | |
| 36 | ;; a menu. Brian D. Carlstrom <bdc@ai.mit.edu> combined the IRIX kluge with | |
| 37 | ;; the gud-xdb-directories hack producing gud-dbx-directories. Derek L. Davies | |
| 38 | ;; <ddavies@world.std.com> added support for jdb (Java debugger.) | |
| 39 | ||
| 40 | ;;; Code: | |
| 41 | ||
| 42 | (require 'comint) | |
| 43 | (require 'etags) | |
| 44 | ||
| 45 | ;; ====================================================================== | |
| 46 | ;; GUD commands must be visible in C buffers visited by GUD | |
| 47 | ||
| 48 | (defgroup gud nil | |
| 49 | "Grand Unified Debugger mode for gdb and other debuggers under Emacs. | |
| 50 | Supported debuggers include gdb, sdb, dbx, xdb, perldb, pdb (Python), jdb, and bash." | |
| 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) | |
| 59 | ||
| 60 | (global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh) | |
| 61 | (define-key ctl-x-map " " 'gud-break) ;; backward compatibility hack | |
| 62 | ||
| 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 | ||
| 68 | (defun gud-marker-filter (&rest args) | |
| 69 | (apply gud-marker-filter args)) | |
| 70 | ||
| 71 | (defvar gud-minor-mode nil) | |
| 72 | (put 'gud-minor-mode 'permanent-local t) | |
| 73 | ||
| 74 | (defvar gud-keep-buffer nil) | |
| 75 | ||
| 76 | (defun gud-symbol (sym &optional soft minor-mode) | |
| 77 | "Return the symbol used for SYM in MINOR-MODE. | |
| 78 | MINOR-MODE defaults to `gud-minor-mode. | |
| 79 | The symbol returned is `gud-<MINOR-MODE>-<SYM>'. | |
| 80 | If SOFT is non-nil, returns nil if the symbol doesn't already exist." | |
| 81 | (unless (or minor-mode gud-minor-mode) (error "Gud internal error")) | |
| 82 | (funcall (if soft 'intern-soft 'intern) | |
| 83 | (format "gud-%s-%s" (or minor-mode gud-minor-mode) sym))) | |
| 84 | ||
| 85 | (defun gud-val (sym &optional minor-mode) | |
| 86 | "Return the value of `gud-symbol' SYM. Default to nil." | |
| 87 | (let ((sym (gud-symbol sym t minor-mode))) | |
| 88 | (if (boundp sym) (symbol-value sym)))) | |
| 89 | ||
| 90 | (defvar gud-running nil | |
| 91 | "Non-nil if debuggee is running. | |
| 92 | Used to grey out relevant toolbar icons.") | |
| 93 | ||
| 94 | (easy-mmode-defmap gud-menu-map | |
| 95 | '(([refresh] "Refresh" . gud-refresh) | |
| 96 | ([run] menu-item "Run" gud-run | |
| 97 | :enable (and (not gud-running) | |
| 98 | (memq gud-minor-mode '(gdba gdb jdb)))) | |
| 99 | ([goto] menu-item "Continue to selection" gud-until | |
| 100 | :enable (and (not gud-running) | |
| 101 | (memq gud-minor-mode '(gdba gdb)))) | |
| 102 | ([remove] menu-item "Remove Breakpoint" gud-remove | |
| 103 | :enable (not gud-running)) | |
| 104 | ([tbreak] menu-item "Temporary Breakpoint" gud-tbreak | |
| 105 | :enable (memq gud-minor-mode '(gdba gdb sdb xdb bashdb))) | |
| 106 | ([break] menu-item "Set Breakpoint" gud-break | |
| 107 | :enable (not gud-running)) | |
| 108 | ([up] menu-item "Up Stack" gud-up | |
| 109 | :enable (and (not gud-running) | |
| 110 | (memq gud-minor-mode | |
| 111 | '(gdba gdb dbx xdb jdb pdb bashdb)))) | |
| 112 | ([down] menu-item "Down Stack" gud-down | |
| 113 | :enable (and (not gud-running) | |
| 114 | (memq gud-minor-mode | |
| 115 | '(gdba gdb dbx xdb jdb pdb bashdb)))) | |
| 116 | ([print] menu-item "Print Expression" gud-print | |
| 117 | :enable (not gud-running)) | |
| 118 | ([display] menu-item "Display Expression" gud-display | |
| 119 | :enable (and (not gud-running) | |
| 120 | (eq gud-minor-mode 'gdba))) | |
| 121 | ([finish] menu-item "Finish Function" gud-finish | |
| 122 | :enable (and (not gud-running) | |
| 123 | (memq gud-minor-mode | |
| 124 | '(gdba gdb xdb jdb pdb bashdb)))) | |
| 125 | ([stepi] menu-item "Step Instruction" gud-stepi | |
| 126 | :enable (and (not gud-running) | |
| 127 | (memq gud-minor-mode | |
| 128 | '(gdba gdb dbx)))) | |
| 129 | ([nexti] menu-item "Next Instruction" gud-nexti | |
| 130 | :enable (and (not gud-running) | |
| 131 | (memq gud-minor-mode | |
| 132 | '(gdba gdb)))) | |
| 133 | ([step] menu-item "Step Line" gud-step | |
| 134 | :enable (not gud-running)) | |
| 135 | ([next] menu-item "Next Line" gud-next | |
| 136 | :enable (not gud-running)) | |
| 137 | ([cont] menu-item "Continue" gud-cont | |
| 138 | :enable (not gud-running))) | |
| 139 | "Menu for `gud-mode'." | |
| 140 | :name "Gud") | |
| 141 | ||
| 142 | (easy-mmode-defmap gud-minor-mode-map | |
| 143 | `(([menu-bar debug] . ("Gud" . ,gud-menu-map))) | |
| 144 | "Map used in visited files.") | |
| 145 | ||
| 146 | (let ((m (assq 'gud-minor-mode minor-mode-map-alist))) | |
| 147 | (if m (setcdr m gud-minor-mode-map) | |
| 148 | (push (cons 'gud-minor-mode gud-minor-mode-map) minor-mode-map-alist))) | |
| 149 | ||
| 150 | (defvar gud-mode-map | |
| 151 | ;; Will inherit from comint-mode via define-derived-mode. | |
| 152 | (make-sparse-keymap) | |
| 153 | "`gud-mode' keymap.") | |
| 154 | ||
| 155 | (defvar gud-tool-bar-map | |
| 156 | (if (display-graphic-p) | |
| 157 | (let ((map (make-sparse-keymap))) | |
| 158 | (dolist (x '((gud-break . "gud-break") | |
| 159 | (gud-remove . "gud-remove") | |
| 160 | (gud-print . "gud-print") | |
| 161 | (gud-display . "gud-display") | |
| 162 | (gud-run . "gud-run") | |
| 163 | (gud-until . "gud-until") | |
| 164 | (gud-cont . "gud-cont") | |
| 165 | (gud-step . "gud-step") | |
| 166 | (gud-next . "gud-next") | |
| 167 | (gud-finish . "gud-finish") | |
| 168 | (gud-stepi . "gud-stepi") | |
| 169 | (gud-nexti . "gud-nexti") | |
| 170 | (gud-up . "gud-up") | |
| 171 | (gud-down . "gud-down")) | |
| 172 | map) | |
| 173 | (tool-bar-local-item-from-menu | |
| 174 | (car x) (cdr x) map gud-minor-mode-map))))) | |
| 175 | ||
| 176 | (defun gud-file-name (f) | |
| 177 | "Transform a relative file name to an absolute file name. | |
| 178 | Uses `gud-<MINOR-MODE>-directories' to find the source files." | |
| 179 | (if (file-exists-p f) (expand-file-name f) | |
| 180 | (let ((directories (gud-val 'directories)) | |
| 181 | (result nil)) | |
| 182 | (while directories | |
| 183 | (let ((path (expand-file-name f (car directories)))) | |
| 184 | (if (file-exists-p path) | |
| 185 | (setq result path | |
| 186 | directories nil))) | |
| 187 | (setq directories (cdr directories))) | |
| 188 | result))) | |
| 189 | ||
| 190 | (defun gud-find-file (file) | |
| 191 | ;; Don't get confused by double slashes in the name that comes from GDB. | |
| 192 | (while (string-match "//+" file) | |
| 193 | (setq file (replace-match "/" t t file))) | |
| 194 | (let ((minor-mode gud-minor-mode) | |
| 195 | (buf (funcall (or gud-find-file 'gud-file-name) file))) | |
| 196 | (when (stringp buf) | |
| 197 | (setq buf (and (file-readable-p buf) (find-file-noselect buf 'nowarn)))) | |
| 198 | (when buf | |
| 199 | ;; Copy `gud-minor-mode' to the found buffer to turn on the menu. | |
| 200 | (with-current-buffer buf | |
| 201 | (set (make-local-variable 'gud-minor-mode) minor-mode) | |
| 202 | (set (make-local-variable 'tool-bar-map) gud-tool-bar-map) | |
| 203 | (make-local-variable 'gud-keep-buffer)) | |
| 204 | buf))) | |
| 205 | \f | |
| 206 | ;; ====================================================================== | |
| 207 | ;; command definition | |
| 208 | ||
| 209 | ;; This macro is used below to define some basic debugger interface commands. | |
| 210 | ;; Of course you may use `gud-def' with any other debugger command, including | |
| 211 | ;; user defined ones. | |
| 212 | ||
| 213 | ;; A macro call like (gud-def FUNC NAME KEY DOC) expands to a form | |
| 214 | ;; which defines FUNC to send the command NAME to the debugger, gives | |
| 215 | ;; it the docstring DOC, and binds that function to KEY in the GUD | |
| 216 | ;; major mode. The function is also bound in the global keymap with the | |
| 217 | ;; GUD prefix. | |
| 218 | ||
| 219 | (defmacro gud-def (func cmd key &optional doc) | |
| 220 | "Define FUNC to be a command sending STR and bound to KEY, with | |
| 221 | optional doc string DOC. Certain %-escapes in the string arguments | |
| 222 | are interpreted specially if present. These are: | |
| 223 | ||
| 224 | %f name (without directory) of current source file. | |
| 225 | %F name (without directory or extension) of current source file. | |
| 226 | %d directory of current source file. | |
| 227 | %l number of current source line | |
| 228 | %e text of the C lvalue or function-call expression surrounding point. | |
| 229 | %a text of the hexadecimal address surrounding point | |
| 230 | %p prefix argument to the command (if any) as a number | |
| 231 | ||
| 232 | The `current' source file is the file of the current buffer (if | |
| 233 | we're in a C file) or the source file current at the last break or | |
| 234 | step (if we're in the GUD buffer). | |
| 235 | The `current' line is that of the current buffer (if we're in a | |
| 236 | source file) or the source line number at the last break or step (if | |
| 237 | we're in the GUD buffer)." | |
| 238 | `(progn | |
| 239 | (defun ,func (arg) | |
| 240 | ,@(if doc (list doc)) | |
| 241 | (interactive "p") | |
| 242 | ,(if (stringp cmd) | |
| 243 | `(gud-call ,cmd arg) | |
| 244 | cmd)) | |
| 245 | ,(if key `(local-set-key ,(concat "\C-c" key) ',func)) | |
| 246 | ,(if key `(global-set-key (vconcat gud-key-prefix ,key) ',func)))) | |
| 247 | ||
| 248 | ;; Where gud-display-frame should put the debugging arrow; a cons of | |
| 249 | ;; (filename . line-number). This is set by the marker-filter, which scans | |
| 250 | ;; the debugger's output for indications of the current program counter. | |
| 251 | (defvar gud-last-frame nil) | |
| 252 | ||
| 253 | ;; Used by gud-refresh, which should cause gud-display-frame to redisplay | |
| 254 | ;; the last frame, even if it's been called before and gud-last-frame has | |
| 255 | ;; been set to nil. | |
| 256 | (defvar gud-last-last-frame nil) | |
| 257 | ||
| 258 | ;; All debugger-specific information is collected here. | |
| 259 | ;; Here's how it works, in case you ever need to add a debugger to the mode. | |
| 260 | ;; | |
| 261 | ;; Each entry must define the following at startup: | |
| 262 | ;; | |
| 263 | ;;<name> | |
| 264 | ;; comint-prompt-regexp | |
| 265 | ;; gud-<name>-massage-args | |
| 266 | ;; gud-<name>-marker-filter | |
| 267 | ;; gud-<name>-find-file | |
| 268 | ;; | |
| 269 | ;; The job of the massage-args method is to modify the given list of | |
| 270 | ;; debugger arguments before running the debugger. | |
| 271 | ;; | |
| 272 | ;; The job of the marker-filter method is to detect file/line markers in | |
| 273 | ;; strings and set the global gud-last-frame to indicate what display | |
| 274 | ;; action (if any) should be triggered by the marker. Note that only | |
| 275 | ;; whatever the method *returns* is displayed in the buffer; thus, you | |
| 276 | ;; can filter the debugger's output, interpreting some and passing on | |
| 277 | ;; the rest. | |
| 278 | ;; | |
| 279 | ;; The job of the find-file method is to visit and return the buffer indicated | |
| 280 | ;; by the car of gud-tag-frame. This may be a file name, a tag name, or | |
| 281 | ;; something else. | |
| 282 | \f | |
| 283 | ;; ====================================================================== | |
| 284 | ;; speedbar support functions and variables. | |
| 285 | (eval-when-compile (require 'speedbar)) ;For speedbar-with-attached-buffer. | |
| 286 | ||
| 287 | (defvar gud-last-speedbar-buffer nil | |
| 288 | "The last GUD buffer used.") | |
| 289 | ||
| 290 | (defvar gud-last-speedbar-stackframe nil | |
| 291 | "Description of the currently displayed GUD stack. | |
| 292 | t means that there is no stack, and we are in display-file mode.") | |
| 293 | ||
| 294 | (defvar gud-speedbar-key-map nil | |
| 295 | "Keymap used when in the buffers display mode.") | |
| 296 | ||
| 297 | (defun gud-install-speedbar-variables () | |
| 298 | "Install those variables used by speedbar to enhance gud/gdb." | |
| 299 | (if gud-speedbar-key-map | |
| 300 | nil | |
| 301 | (setq gud-speedbar-key-map (speedbar-make-specialized-keymap)) | |
| 302 | ||
| 303 | (define-key gud-speedbar-key-map "j" 'speedbar-edit-line) | |
| 304 | (define-key gud-speedbar-key-map "e" 'speedbar-edit-line) | |
| 305 | (define-key gud-speedbar-key-map "\C-m" 'speedbar-edit-line))) | |
| 306 | ||
| 307 | (defvar gud-speedbar-menu-items | |
| 308 | ;; Note to self. Add expand, and turn off items when not available. | |
| 309 | '(["Jump to stack frame" speedbar-edit-line t]) | |
| 310 | "Additional menu items to add to the speedbar frame.") | |
| 311 | ||
| 312 | ;; Make sure our special speedbar mode is loaded | |
| 313 | (if (featurep 'speedbar) | |
| 314 | (gud-install-speedbar-variables) | |
| 315 | (add-hook 'speedbar-load-hook 'gud-install-speedbar-variables)) | |
| 316 | ||
| 317 | (defun gud-speedbar-buttons (buffer) | |
| 318 | "Create a speedbar display based on the current state of GUD. | |
| 319 | If the GUD BUFFER is not running a supported debugger, then turn | |
| 320 | off the specialized speedbar mode." | |
| 321 | (if (and (save-excursion (goto-char (point-min)) | |
| 322 | (looking-at "Current Stack")) | |
| 323 | (equal gud-last-last-frame gud-last-speedbar-stackframe)) | |
| 324 | nil | |
| 325 | (setq gud-last-speedbar-buffer buffer) | |
| 326 | (let* ((minor-mode (with-current-buffer buffer gud-minor-mode)) | |
| 327 | (frames | |
| 328 | (cond ((memq minor-mode '(gdba gdb)) | |
| 329 | (gud-gdb-get-stackframe buffer)) | |
| 330 | ;; Add more debuggers here! | |
| 331 | (t | |
| 332 | (speedbar-remove-localized-speedbar-support buffer) | |
| 333 | nil)))) | |
| 334 | (erase-buffer) | |
| 335 | (if (not frames) | |
| 336 | (insert "No Stack frames\n") | |
| 337 | (insert "Current Stack:\n")) | |
| 338 | (while frames | |
| 339 | (insert (nth 1 (car frames)) ":\n") | |
| 340 | (if (= (length (car frames)) 2) | |
| 341 | (progn | |
| 342 | ; (speedbar-insert-button "[?]" | |
| 343 | ; 'speedbar-button-face | |
| 344 | ; nil nil nil t) | |
| 345 | (speedbar-insert-button (car (car frames)) | |
| 346 | 'speedbar-directory-face | |
| 347 | nil nil nil t)) | |
| 348 | ; (speedbar-insert-button "[+]" | |
| 349 | ; 'speedbar-button-face | |
| 350 | ; 'speedbar-highlight-face | |
| 351 | ; 'gud-gdb-get-scope-data | |
| 352 | ; (car frames) t) | |
| 353 | (speedbar-insert-button (car (car frames)) | |
| 354 | 'speedbar-file-face | |
| 355 | 'speedbar-highlight-face | |
| 356 | (cond ((memq minor-mode '(gdba gdb)) | |
| 357 | 'gud-gdb-goto-stackframe) | |
| 358 | (t (error "Should never be here"))) | |
| 359 | (car frames) t)) | |
| 360 | (setq frames (cdr frames))) | |
| 361 | ; (let ((selected-frame | |
| 362 | ; (cond ((eq ff 'gud-gdb-find-file) | |
| 363 | ; (gud-gdb-selected-frame-info buffer)) | |
| 364 | ; (t (error "Should never be here")))))) | |
| 365 | ) | |
| 366 | (setq gud-last-speedbar-stackframe gud-last-last-frame))) | |
| 367 | ||
| 368 | \f | |
| 369 | ;; ====================================================================== | |
| 370 | ;; gdb functions | |
| 371 | ||
| 372 | ;; History of argument lists passed to gdb. | |
| 373 | (defvar gud-gdb-history nil) | |
| 374 | ||
| 375 | (defcustom gud-gdb-command-name "gdb --fullname" | |
| 376 | "Default command to execute an executable under the GDB debugger." | |
| 377 | :type 'string | |
| 378 | :group 'gud) | |
| 379 | ||
| 380 | (defvar gud-gdb-marker-regexp | |
| 381 | ;; This used to use path-separator instead of ":"; | |
| 382 | ;; however, we found that on both Windows 32 and MSDOS | |
| 383 | ;; a colon is correct here. | |
| 384 | (concat "\032\032\\(.:?[^" ":" "\n]*\\)" ":" | |
| 385 | "\\([0-9]*\\)" ":" ".*\n")) | |
| 386 | ||
| 387 | ;; There's no guarantee that Emacs will hand the filter the entire | |
| 388 | ;; marker at once; it could be broken up across several strings. We | |
| 389 | ;; might even receive a big chunk with several markers in it. If we | |
| 390 | ;; receive a chunk of text which looks like it might contain the | |
| 391 | ;; beginning of a marker, we save it here between calls to the | |
| 392 | ;; filter. | |
| 393 | (defvar gud-marker-acc "") | |
| 394 | (make-variable-buffer-local 'gud-marker-acc) | |
| 395 | ||
| 396 | (defun gud-gdb-marker-filter (string) | |
| 397 | (setq gud-marker-acc (concat gud-marker-acc string)) | |
| 398 | (let ((output "")) | |
| 399 | ||
| 400 | ;; Process all the complete markers in this chunk. | |
| 401 | (while (string-match gud-gdb-marker-regexp gud-marker-acc) | |
| 402 | (setq | |
| 403 | ||
| 404 | ;; Extract the frame position from the marker. | |
| 405 | gud-last-frame (cons (match-string 1 gud-marker-acc) | |
| 406 | (string-to-int (match-string 2 gud-marker-acc))) | |
| 407 | ||
| 408 | ;; Append any text before the marker to the output we're going | |
| 409 | ;; to return - we don't include the marker in this text. | |
| 410 | output (concat output | |
| 411 | (substring gud-marker-acc 0 (match-beginning 0))) | |
| 412 | ||
| 413 | ;; Set the accumulator to the remaining text. | |
| 414 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
| 415 | ||
| 416 | ;; Does the remaining text look like it might end with the | |
| 417 | ;; beginning of another marker? If it does, then keep it in | |
| 418 | ;; gud-marker-acc until we receive the rest of it. Since we | |
| 419 | ;; know the full marker regexp above failed, it's pretty simple to | |
| 420 | ;; test for marker starts. | |
| 421 | (if (string-match "\032.*\\'" gud-marker-acc) | |
| 422 | (progn | |
| 423 | ;; Everything before the potential marker start can be output. | |
| 424 | (setq output (concat output (substring gud-marker-acc | |
| 425 | 0 (match-beginning 0)))) | |
| 426 | ||
| 427 | ;; Everything after, we save, to combine with later input. | |
| 428 | (setq gud-marker-acc | |
| 429 | (substring gud-marker-acc (match-beginning 0)))) | |
| 430 | ||
| 431 | (setq output (concat output gud-marker-acc) | |
| 432 | gud-marker-acc "")) | |
| 433 | ||
| 434 | output)) | |
| 435 | ||
| 436 | (easy-mmode-defmap gud-minibuffer-local-map | |
| 437 | '(("\C-i" . comint-dynamic-complete-filename)) | |
| 438 | "Keymap for minibuffer prompting of gud startup command." | |
| 439 | :inherit minibuffer-local-map) | |
| 440 | ||
| 441 | (defun gud-query-cmdline (minor-mode &optional init) | |
| 442 | (let* ((hist-sym (gud-symbol 'history nil minor-mode)) | |
| 443 | (cmd-name (gud-val 'command-name minor-mode))) | |
| 444 | (unless (boundp hist-sym) (set hist-sym nil)) | |
| 445 | (read-from-minibuffer | |
| 446 | (format "Run %s (like this): " minor-mode) | |
| 447 | (or (car-safe (symbol-value hist-sym)) | |
| 448 | (concat (or cmd-name (symbol-name minor-mode)) | |
| 449 | " " | |
| 450 | (or init | |
| 451 | (let ((file nil)) | |
| 452 | (dolist (f (directory-files default-directory) file) | |
| 453 | (if (and (file-executable-p f) | |
| 454 | (not (file-directory-p f)) | |
| 455 | (or (not file) | |
| 456 | (file-newer-than-file-p f file))) | |
| 457 | (setq file f))))))) | |
| 458 | gud-minibuffer-local-map nil | |
| 459 | hist-sym))) | |
| 460 | ||
| 461 | ;;;###autoload | |
| 462 | (defun gdb (command-line) | |
| 463 | "Run gdb on program FILE in buffer *gud-FILE*. | |
| 464 | The directory containing FILE becomes the initial working directory | |
| 465 | and source-file directory for your debugger." | |
| 466 | (interactive (list (gud-query-cmdline 'gdb))) | |
| 467 | ||
| 468 | (gud-common-init command-line nil 'gud-gdb-marker-filter) | |
| 469 | (set (make-local-variable 'gud-minor-mode) 'gdb) | |
| 470 | ||
| 471 | (gud-def gud-break "break %f:%l" "\C-b" "Set breakpoint at current line.") | |
| 472 | (gud-def gud-tbreak "tbreak %f:%l" "\C-t" "Set temporary breakpoint at current line.") | |
| 473 | (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line") | |
| 474 | (gud-def gud-step "step %p" "\C-s" "Step one source line with display.") | |
| 475 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
| 476 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
| 477 | (gud-def gud-nexti "nexti %p" nil "Step one instruction (skip functions).") | |
| 478 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
| 479 | (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
| 480 | (gud-def gud-jump "tbreak %f:%l\njump %f:%l" "\C-j" "Relocate execution address to line at point in source buffer.") | |
| 481 | ||
| 482 | (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") | |
| 483 | (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
| 484 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") | |
| 485 | (gud-def gud-until "until %l" "\C-u" "Continue to current line.") | |
| 486 | (gud-def gud-run "run" nil "Run the program.") | |
| 487 | ||
| 488 | (local-set-key "\C-i" 'gud-gdb-complete-command) | |
| 489 | (setq comint-prompt-regexp "^(.*gdb[+]?) *") | |
| 490 | (setq paragraph-start comint-prompt-regexp) | |
| 491 | (run-hooks 'gdb-mode-hook) | |
| 492 | ) | |
| 493 | ||
| 494 | ;; One of the nice features of GDB is its impressive support for | |
| 495 | ;; context-sensitive command completion. We preserve that feature | |
| 496 | ;; in the GUD buffer by using a GDB command designed just for Emacs. | |
| 497 | ||
| 498 | ;; The completion process filter indicates when it is finished. | |
| 499 | (defvar gud-gdb-fetch-lines-in-progress) | |
| 500 | ||
| 501 | ;; Since output may arrive in fragments we accumulate partials strings here. | |
| 502 | (defvar gud-gdb-fetch-lines-string) | |
| 503 | ||
| 504 | ;; We need to know how much of the completion to chop off. | |
| 505 | (defvar gud-gdb-fetch-lines-break) | |
| 506 | ||
| 507 | ;; The completion list is constructed by the process filter. | |
| 508 | (defvar gud-gdb-fetched-lines) | |
| 509 | ||
| 510 | (defvar gud-comint-buffer nil) | |
| 511 | ||
| 512 | (defun gud-gdb-complete-command () | |
| 513 | "Perform completion on the GDB command preceding point. | |
| 514 | This is implemented using the GDB `complete' command which isn't | |
| 515 | available with older versions of GDB." | |
| 516 | (interactive) | |
| 517 | (let* ((end (point)) | |
| 518 | (command (buffer-substring (comint-line-beginning-position) end)) | |
| 519 | (command-word | |
| 520 | ;; Find the word break. This match will always succeed. | |
| 521 | (and (string-match "\\(\\`\\| \\)\\([^ ]*\\)\\'" command) | |
| 522 | (substring command (match-beginning 2)))) | |
| 523 | (complete-list | |
| 524 | (gud-gdb-run-command-fetch-lines (concat "complete " command) | |
| 525 | (current-buffer) | |
| 526 | ;; From string-match above. | |
| 527 | (match-beginning 2)))) | |
| 528 | ;; Protect against old versions of GDB. | |
| 529 | (and complete-list | |
| 530 | (string-match "^Undefined command: \"complete\"" (car complete-list)) | |
| 531 | (error "This version of GDB doesn't support the `complete' command")) | |
| 532 | ;; Sort the list like readline. | |
| 533 | (setq complete-list (sort complete-list (function string-lessp))) | |
| 534 | ;; Remove duplicates. | |
| 535 | (let ((first complete-list) | |
| 536 | (second (cdr complete-list))) | |
| 537 | (while second | |
| 538 | (if (string-equal (car first) (car second)) | |
| 539 | (setcdr first (setq second (cdr second))) | |
| 540 | (setq first second | |
| 541 | second (cdr second))))) | |
| 542 | ;; Add a trailing single quote if there is a unique completion | |
| 543 | ;; and it contains an odd number of unquoted single quotes. | |
| 544 | (and (= (length complete-list) 1) | |
| 545 | (let ((str (car complete-list)) | |
| 546 | (pos 0) | |
| 547 | (count 0)) | |
| 548 | (while (string-match "\\([^'\\]\\|\\\\'\\)*'" str pos) | |
| 549 | (setq count (1+ count) | |
| 550 | pos (match-end 0))) | |
| 551 | (and (= (mod count 2) 1) | |
| 552 | (setq complete-list (list (concat str "'")))))) | |
| 553 | ;; Let comint handle the rest. | |
| 554 | (comint-dynamic-simple-complete command-word complete-list))) | |
| 555 | ||
| 556 | ;; The completion process filter is installed temporarily to slurp the | |
| 557 | ;; output of GDB up to the next prompt and build the completion list. | |
| 558 | (defun gud-gdb-fetch-lines-filter (string filter) | |
| 559 | "Filter used to read the list of lines output by a command. | |
| 560 | STRING is the output to filter. | |
| 561 | It is passed through FILTER before we look at it." | |
| 562 | (setq string (funcall filter string)) | |
| 563 | (setq string (concat gud-gdb-fetch-lines-string string)) | |
| 564 | (while (string-match "\n" string) | |
| 565 | (push (substring string gud-gdb-fetch-lines-break (match-beginning 0)) | |
| 566 | gud-gdb-fetched-lines) | |
| 567 | (setq string (substring string (match-end 0)))) | |
| 568 | (if (string-match comint-prompt-regexp string) | |
| 569 | (progn | |
| 570 | (setq gud-gdb-fetch-lines-in-progress nil) | |
| 571 | string) | |
| 572 | (progn | |
| 573 | (setq gud-gdb-fetch-lines-string string) | |
| 574 | ""))) | |
| 575 | ||
| 576 | ;; gdb speedbar functions | |
| 577 | ||
| 578 | (defun gud-gdb-goto-stackframe (text token indent) | |
| 579 | "Goto the stackframe described by TEXT, TOKEN, and INDENT." | |
| 580 | (speedbar-with-attached-buffer | |
| 581 | (gud-basic-call (concat "server frame " (nth 1 token))) | |
| 582 | (sit-for 1))) | |
| 583 | ||
| 584 | (defvar gud-gdb-fetched-stack-frame nil | |
| 585 | "Stack frames we are fetching from GDB.") | |
| 586 | ||
| 587 | ;(defun gud-gdb-get-scope-data (text token indent) | |
| 588 | ; ;; checkdoc-params: (indent) | |
| 589 | ; "Fetch data associated with a stack frame, and expand/contract it. | |
| 590 | ;Data to do this is retrieved from TEXT and TOKEN." | |
| 591 | ; (let ((args nil) (scope nil)) | |
| 592 | ; (gud-gdb-run-command-fetch-lines "info args") | |
| 593 | ; | |
| 594 | ; (gud-gdb-run-command-fetch-lines "info local") | |
| 595 | ; | |
| 596 | ; )) | |
| 597 | ||
| 598 | (defun gud-gdb-get-stackframe (buffer) | |
| 599 | "Extract the current stack frame out of the GUD GDB BUFFER." | |
| 600 | (let ((newlst nil) | |
| 601 | (fetched-stack-frame-list | |
| 602 | (gud-gdb-run-command-fetch-lines "server backtrace" buffer))) | |
| 603 | (if (and (car fetched-stack-frame-list) | |
| 604 | (string-match "No stack" (car fetched-stack-frame-list))) | |
| 605 | ;; Go into some other mode??? | |
| 606 | nil | |
| 607 | (dolist (e fetched-stack-frame-list) | |
| 608 | (let ((name nil) (num nil)) | |
| 609 | (if (not (or | |
| 610 | (string-match "^#\\([0-9]+\\) +[0-9a-fx]+ in \\([:0-9a-zA-Z_]+\\) (" e) | |
| 611 | (string-match "^#\\([0-9]+\\) +\\([:0-9a-zA-Z_]+\\) (" e))) | |
| 612 | (if (not (string-match | |
| 613 | "at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e)) | |
| 614 | nil | |
| 615 | (setcar newlst | |
| 616 | (list (nth 0 (car newlst)) | |
| 617 | (nth 1 (car newlst)) | |
| 618 | (match-string 1 e) | |
| 619 | (match-string 2 e)))) | |
| 620 | (setq num (match-string 1 e) | |
| 621 | name (match-string 2 e)) | |
| 622 | (setq newlst | |
| 623 | (cons | |
| 624 | (if (string-match | |
| 625 | "at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e) | |
| 626 | (list name num (match-string 1 e) | |
| 627 | (match-string 2 e)) | |
| 628 | (list name num)) | |
| 629 | newlst))))) | |
| 630 | (nreverse newlst)))) | |
| 631 | ||
| 632 | ;(defun gud-gdb-selected-frame-info (buffer) | |
| 633 | ; "Learn GDB information for the currently selected stack frame in BUFFER." | |
| 634 | ; ) | |
| 635 | ||
| 636 | (defun gud-gdb-run-command-fetch-lines (command buffer &optional skip) | |
| 637 | "Run COMMAND, and return the list of lines it outputs. | |
| 638 | BUFFER is the GUD buffer in which to run the command. | |
| 639 | SKIP is the number of chars to skip on each lines, it defaults to 0." | |
| 640 | (with-current-buffer buffer | |
| 641 | (if (save-excursion | |
| 642 | (goto-char (point-max)) | |
| 643 | (forward-line 0) | |
| 644 | (not (looking-at comint-prompt-regexp))) | |
| 645 | nil | |
| 646 | ;; Much of this copied from GDB complete, but I'm grabbing the stack | |
| 647 | ;; frame instead. | |
| 648 | (let ((gud-gdb-fetch-lines-in-progress t) | |
| 649 | (gud-gdb-fetched-lines nil) | |
| 650 | (gud-gdb-fetch-lines-string nil) | |
| 651 | (gud-gdb-fetch-lines-break (or skip 0)) | |
| 652 | (gud-marker-filter | |
| 653 | `(lambda (string) (gud-gdb-fetch-lines-filter string ',gud-marker-filter)))) | |
| 654 | ;; Issue the command to GDB. | |
| 655 | (gud-basic-call command) | |
| 656 | ;; Slurp the output. | |
| 657 | (while gud-gdb-fetch-lines-in-progress | |
| 658 | (accept-process-output (get-buffer-process buffer))) | |
| 659 | (nreverse gud-gdb-fetched-lines))))) | |
| 660 | ||
| 661 | \f | |
| 662 | ;; ====================================================================== | |
| 663 | ;; sdb functions | |
| 664 | ||
| 665 | ;; History of argument lists passed to sdb. | |
| 666 | (defvar gud-sdb-history nil) | |
| 667 | ||
| 668 | (defvar gud-sdb-needs-tags (not (file-exists-p "/var")) | |
| 669 | "If nil, we're on a System V Release 4 and don't need the tags hack.") | |
| 670 | ||
| 671 | (defvar gud-sdb-lastfile nil) | |
| 672 | ||
| 673 | (defun gud-sdb-marker-filter (string) | |
| 674 | (setq gud-marker-acc | |
| 675 | (if gud-marker-acc (concat gud-marker-acc string) string)) | |
| 676 | (let (start) | |
| 677 | ;; Process all complete markers in this chunk | |
| 678 | (while | |
| 679 | (cond | |
| 680 | ;; System V Release 3.2 uses this format | |
| 681 | ((string-match "\\(^\\|\n\\)\\*?\\(0x\\w* in \\)?\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
| 682 | gud-marker-acc start) | |
| 683 | (setq gud-last-frame | |
| 684 | (cons (match-string 3 gud-marker-acc) | |
| 685 | (string-to-int (match-string 4 gud-marker-acc))))) | |
| 686 | ;; System V Release 4.0 quite often clumps two lines together | |
| 687 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n\\([0-9]+\\):" | |
| 688 | gud-marker-acc start) | |
| 689 | (setq gud-sdb-lastfile (match-string 2 gud-marker-acc)) | |
| 690 | (setq gud-last-frame | |
| 691 | (cons gud-sdb-lastfile | |
| 692 | (string-to-int (match-string 3 gud-marker-acc))))) | |
| 693 | ;; System V Release 4.0 | |
| 694 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n" | |
| 695 | gud-marker-acc start) | |
| 696 | (setq gud-sdb-lastfile (match-string 2 gud-marker-acc))) | |
| 697 | ((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):" | |
| 698 | gud-marker-acc start)) | |
| 699 | (setq gud-last-frame | |
| 700 | (cons gud-sdb-lastfile | |
| 701 | (string-to-int (match-string 1 gud-marker-acc))))) | |
| 702 | (t | |
| 703 | (setq gud-sdb-lastfile nil))) | |
| 704 | (setq start (match-end 0))) | |
| 705 | ||
| 706 | ;; Search for the last incomplete line in this chunk | |
| 707 | (while (string-match "\n" gud-marker-acc start) | |
| 708 | (setq start (match-end 0))) | |
| 709 | ||
| 710 | ;; If we have an incomplete line, store it in gud-marker-acc. | |
| 711 | (setq gud-marker-acc (substring gud-marker-acc (or start 0)))) | |
| 712 | string) | |
| 713 | ||
| 714 | (defun gud-sdb-find-file (f) | |
| 715 | (if gud-sdb-needs-tags (find-tag-noselect f) (find-file-noselect f))) | |
| 716 | ||
| 717 | ;;;###autoload | |
| 718 | (defun sdb (command-line) | |
| 719 | "Run sdb on program FILE in buffer *gud-FILE*. | |
| 720 | The directory containing FILE becomes the initial working directory | |
| 721 | and source-file directory for your debugger." | |
| 722 | (interactive (list (gud-query-cmdline 'sdb))) | |
| 723 | ||
| 724 | (if (and gud-sdb-needs-tags | |
| 725 | (not (and (boundp 'tags-file-name) | |
| 726 | (stringp tags-file-name) | |
| 727 | (file-exists-p tags-file-name)))) | |
| 728 | (error "The sdb support requires a valid tags table to work")) | |
| 729 | ||
| 730 | (gud-common-init command-line nil 'gud-sdb-marker-filter 'gud-sdb-find-file) | |
| 731 | (set (make-local-variable 'gud-minor-mode) 'sdb) | |
| 732 | ||
| 733 | (gud-def gud-break "%l b" "\C-b" "Set breakpoint at current line.") | |
| 734 | (gud-def gud-tbreak "%l c" "\C-t" "Set temporary breakpoint at current line.") | |
| 735 | (gud-def gud-remove "%l d" "\C-d" "Remove breakpoint at current line") | |
| 736 | (gud-def gud-step "s %p" "\C-s" "Step one source line with display.") | |
| 737 | (gud-def gud-stepi "i %p" "\C-i" "Step one instruction with display.") | |
| 738 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
| 739 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
| 740 | (gud-def gud-print "%e/" "\C-p" "Evaluate C expression at point.") | |
| 741 | ||
| 742 | (setq comint-prompt-regexp "\\(^\\|\n\\)\\*") | |
| 743 | (setq paragraph-start comint-prompt-regexp) | |
| 744 | (run-hooks 'sdb-mode-hook) | |
| 745 | ) | |
| 746 | \f | |
| 747 | ;; ====================================================================== | |
| 748 | ;; dbx functions | |
| 749 | ||
| 750 | ;; History of argument lists passed to dbx. | |
| 751 | (defvar gud-dbx-history nil) | |
| 752 | ||
| 753 | (defcustom gud-dbx-directories nil | |
| 754 | "*A list of directories that dbx should search for source code. | |
| 755 | If nil, only source files in the program directory | |
| 756 | will be known to dbx. | |
| 757 | ||
| 758 | The file names should be absolute, or relative to the directory | |
| 759 | containing the executable being debugged." | |
| 760 | :type '(choice (const :tag "Current Directory" nil) | |
| 761 | (repeat :value ("") | |
| 762 | directory)) | |
| 763 | :group 'gud) | |
| 764 | ||
| 765 | (defun gud-dbx-massage-args (file args) | |
| 766 | (nconc (let ((directories gud-dbx-directories) | |
| 767 | (result nil)) | |
| 768 | (while directories | |
| 769 | (setq result (cons (car directories) (cons "-I" result))) | |
| 770 | (setq directories (cdr directories))) | |
| 771 | (nreverse result)) | |
| 772 | args)) | |
| 773 | ||
| 774 | (defun gud-dbx-marker-filter (string) | |
| 775 | (setq gud-marker-acc (if gud-marker-acc (concat gud-marker-acc string) string)) | |
| 776 | ||
| 777 | (let (start) | |
| 778 | ;; Process all complete markers in this chunk. | |
| 779 | (while (or (string-match | |
| 780 | "stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
| 781 | gud-marker-acc start) | |
| 782 | (string-match | |
| 783 | "signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
| 784 | gud-marker-acc start)) | |
| 785 | (setq gud-last-frame | |
| 786 | (cons (match-string 2 gud-marker-acc) | |
| 787 | (string-to-int (match-string 1 gud-marker-acc))) | |
| 788 | start (match-end 0))) | |
| 789 | ||
| 790 | ;; Search for the last incomplete line in this chunk | |
| 791 | (while (string-match "\n" gud-marker-acc start) | |
| 792 | (setq start (match-end 0))) | |
| 793 | ||
| 794 | ;; If the incomplete line APPEARS to begin with another marker, keep it | |
| 795 | ;; in the accumulator. Otherwise, clear the accumulator to avoid an | |
| 796 | ;; unnecessary concat during the next call. | |
| 797 | (setq gud-marker-acc | |
| 798 | (if (string-match "\\(stopped\\|signal\\)" gud-marker-acc start) | |
| 799 | (substring gud-marker-acc (match-beginning 0)) | |
| 800 | nil))) | |
| 801 | string) | |
| 802 | ||
| 803 | ;; Functions for Mips-style dbx. Given the option `-emacs', documented in | |
| 804 | ;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's. | |
| 805 | (defvar gud-mips-p | |
| 806 | (or (string-match "^mips-[^-]*-ultrix" system-configuration) | |
| 807 | ;; We haven't tested gud on this system: | |
| 808 | (string-match "^mips-[^-]*-riscos" system-configuration) | |
| 809 | ;; It's documented on OSF/1.3 | |
| 810 | (string-match "^mips-[^-]*-osf1" system-configuration) | |
| 811 | (string-match "^alpha[^-]*-[^-]*-osf" system-configuration)) | |
| 812 | "Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').") | |
| 813 | ||
| 814 | (defvar gud-dbx-command-name | |
| 815 | (concat "dbx" (if gud-mips-p " -emacs"))) | |
| 816 | ||
| 817 | ;; This is just like the gdb one except for the regexps since we need to cope | |
| 818 | ;; with an optional breakpoint number in [] before the ^Z^Z | |
| 819 | (defun gud-mipsdbx-marker-filter (string) | |
| 820 | (setq gud-marker-acc (concat gud-marker-acc string)) | |
| 821 | (let ((output "")) | |
| 822 | ||
| 823 | ;; Process all the complete markers in this chunk. | |
| 824 | (while (string-match | |
| 825 | ;; This is like th gdb marker but with an optional | |
| 826 | ;; leading break point number like `[1] ' | |
| 827 | "[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
| 828 | gud-marker-acc) | |
| 829 | (setq | |
| 830 | ||
| 831 | ;; Extract the frame position from the marker. | |
| 832 | gud-last-frame | |
| 833 | (cons (match-string 1 gud-marker-acc) | |
| 834 | (string-to-int (match-string 2 gud-marker-acc))) | |
| 835 | ||
| 836 | ;; Append any text before the marker to the output we're going | |
| 837 | ;; to return - we don't include the marker in this text. | |
| 838 | output (concat output | |
| 839 | (substring gud-marker-acc 0 (match-beginning 0))) | |
| 840 | ||
| 841 | ;; Set the accumulator to the remaining text. | |
| 842 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
| 843 | ||
| 844 | ;; Does the remaining text look like it might end with the | |
| 845 | ;; beginning of another marker? If it does, then keep it in | |
| 846 | ;; gud-marker-acc until we receive the rest of it. Since we | |
| 847 | ;; know the full marker regexp above failed, it's pretty simple to | |
| 848 | ;; test for marker starts. | |
| 849 | (if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc) | |
| 850 | (progn | |
| 851 | ;; Everything before the potential marker start can be output. | |
| 852 | (setq output (concat output (substring gud-marker-acc | |
| 853 | 0 (match-beginning 0)))) | |
| 854 | ||
| 855 | ;; Everything after, we save, to combine with later input. | |
| 856 | (setq gud-marker-acc | |
| 857 | (substring gud-marker-acc (match-beginning 0)))) | |
| 858 | ||
| 859 | (setq output (concat output gud-marker-acc) | |
| 860 | gud-marker-acc "")) | |
| 861 | ||
| 862 | output)) | |
| 863 | ||
| 864 | ;; The dbx in IRIX is a pain. It doesn't print the file name when | |
| 865 | ;; stopping at a breakpoint (but you do get it from the `up' and | |
| 866 | ;; `down' commands...). The only way to extract the information seems | |
| 867 | ;; to be with a `file' command, although the current line number is | |
| 868 | ;; available in $curline. Thus we have to look for output which | |
| 869 | ;; appears to indicate a breakpoint. Then we prod the dbx sub-process | |
| 870 | ;; to output the information we want with a combination of the | |
| 871 | ;; `printf' and `file' commands as a pseudo marker which we can | |
| 872 | ;; recognise next time through the marker-filter. This would be like | |
| 873 | ;; the gdb marker but you can't get the file name without a newline... | |
| 874 | ;; Note that gud-remove won't work since Irix dbx expects a breakpoint | |
| 875 | ;; number rather than a line number etc. Maybe this could be made to | |
| 876 | ;; work by listing all the breakpoints and picking the one(s) with the | |
| 877 | ;; correct line number, but life's too short. | |
| 878 | ;; d.love@dl.ac.uk (Dave Love) can be blamed for this | |
| 879 | ||
| 880 | (defvar gud-irix-p | |
| 881 | (and (string-match "^mips-[^-]*-irix" system-configuration) | |
| 882 | (not (string-match "irix[6-9]\\.[1-9]" system-configuration))) | |
| 883 | "Non-nil to assume the interface appropriate for IRIX dbx. | |
| 884 | This works in IRIX 4, 5 and 6, but `gud-dbx-use-stopformat-p' provides | |
| 885 | a better solution in 6.1 upwards.") | |
| 886 | (defvar gud-dbx-use-stopformat-p | |
| 887 | (string-match "irix[6-9]\\.[1-9]" system-configuration) | |
| 888 | "Non-nil to use the dbx feature present at least from Irix 6.1 | |
| 889 | whereby $stopformat=1 produces an output format compatiable with | |
| 890 | `gud-dbx-marker-filter'.") | |
| 891 | ;; [Irix dbx seems to be a moving target. The dbx output changed | |
| 892 | ;; subtly sometime between OS v4.0.5 and v5.2 so that, for instance, | |
| 893 | ;; the output from `up' is no longer spotted by gud (and it's probably | |
| 894 | ;; not distinctive enough to try to match it -- use C-<, C-> | |
| 895 | ;; exclusively) . For 5.3 and 6.0, the $curline variable changed to | |
| 896 | ;; `long long'(why?!), so the printf stuff needed changing. The line | |
| 897 | ;; number was cast to `long' as a compromise between the new `long | |
| 898 | ;; long' and the original `int'. This is reported not to work in 6.2, | |
| 899 | ;; so it's changed back to int -- don't make your sources too long. | |
| 900 | ;; From Irix6.1 (but not 6.0?) dbx supports an undocumented feature | |
| 901 | ;; whereby `set $stopformat=1' reportedly produces output compatible | |
| 902 | ;; with `gud-dbx-marker-filter', which we prefer. | |
| 903 | ||
| 904 | ;; The process filter is also somewhat | |
| 905 | ;; unreliable, sometimes not spotting the markers; I don't know | |
| 906 | ;; whether there's anything that can be done about that. It would be | |
| 907 | ;; much better if SGI could be persuaded to (re?)instate the MIPS | |
| 908 | ;; -emacs flag for gdb-like output (which ought to be possible as most | |
| 909 | ;; of the communication I've had over it has been from sgi.com).] | |
| 910 | ||
| 911 | ;; this filter is influenced by the xdb one rather than the gdb one | |
| 912 | (defun gud-irixdbx-marker-filter (string) | |
| 913 | (let (result (case-fold-search nil)) | |
| 914 | (if (or (string-match comint-prompt-regexp string) | |
| 915 | (string-match ".*\012" string)) | |
| 916 | (setq result (concat gud-marker-acc string) | |
| 917 | gud-marker-acc "") | |
| 918 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
| 919 | (if result | |
| 920 | (cond | |
| 921 | ;; look for breakpoint or signal indication e.g.: | |
| 922 | ;; [2] Process 1267 (pplot) stopped at [params:338 ,0x400ec0] | |
| 923 | ;; Process 1281 (pplot) stopped at [params:339 ,0x400ec8] | |
| 924 | ;; Process 1270 (pplot) Floating point exception [._read._read:16 ,0x452188] | |
| 925 | ((string-match | |
| 926 | "^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n" | |
| 927 | result) | |
| 928 | ;; prod dbx into printing out the line number and file | |
| 929 | ;; name in a form we can grok as below | |
| 930 | (process-send-string (get-buffer-process gud-comint-buffer) | |
| 931 | "printf \"\032\032%1d:\",(int)$curline;file\n")) | |
| 932 | ;; look for result of, say, "up" e.g.: | |
| 933 | ;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c] | |
| 934 | ;; (this will also catch one of the lines printed by "where") | |
| 935 | ((string-match | |
| 936 | "^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n" | |
| 937 | result) | |
| 938 | (let ((file (match-string 1 result))) | |
| 939 | (if (file-exists-p file) | |
| 940 | (setq gud-last-frame | |
| 941 | (cons (match-string 1 result) | |
| 942 | (string-to-int (match-string 2 result)))))) | |
| 943 | result) | |
| 944 | ((string-match ; kluged-up marker as above | |
| 945 | "\032\032\\([0-9]*\\):\\(.*\\)\n" result) | |
| 946 | (let ((file (gud-file-name (match-string 2 result)))) | |
| 947 | (if (and file (file-exists-p file)) | |
| 948 | (setq gud-last-frame | |
| 949 | (cons file | |
| 950 | (string-to-int (match-string 1 result)))))) | |
| 951 | (setq result (substring result 0 (match-beginning 0)))))) | |
| 952 | (or result ""))) | |
| 953 | ||
| 954 | (defvar gud-dgux-p (string-match "-dgux" system-configuration) | |
| 955 | "Non-nil means to assume the interface approriate for DG/UX dbx. | |
| 956 | This was tested using R4.11.") | |
| 957 | ||
| 958 | ;; There are a couple of differences between DG's dbx output and normal | |
| 959 | ;; dbx output which make it nontrivial to integrate this into the | |
| 960 | ;; standard dbx-marker-filter (mainly, there are a different number of | |
| 961 | ;; backreferences). The markers look like: | |
| 962 | ;; | |
| 963 | ;; (0) Stopped at line 10, routine main(argc=1, argv=0xeffff0e0), file t.c | |
| 964 | ;; | |
| 965 | ;; from breakpoints (the `(0)' there isn't constant, it's the breakpoint | |
| 966 | ;; number), and | |
| 967 | ;; | |
| 968 | ;; Stopped at line 13, routine main(argc=1, argv=0xeffff0e0), file t.c | |
| 969 | ;; | |
| 970 | ;; from signals and | |
| 971 | ;; | |
| 972 | ;; Frame 21, line 974, routine command_loop(), file keyboard.c | |
| 973 | ;; | |
| 974 | ;; from up/down/where. | |
| 975 | ||
| 976 | (defun gud-dguxdbx-marker-filter (string) | |
| 977 | (setq gud-marker-acc (if gud-marker-acc | |
| 978 | (concat gud-marker-acc string) | |
| 979 | string)) | |
| 980 | (let ((re (concat "^\\(\\(([0-9]+) \\)?Stopped at\\|Frame [0-9]+,\\)" | |
| 981 | " line \\([0-9]+\\), routine .*, file \\([^ \t\n]+\\)")) | |
| 982 | start) | |
| 983 | ;; Process all complete markers in this chunk. | |
| 984 | (while (string-match re gud-marker-acc start) | |
| 985 | (setq gud-last-frame | |
| 986 | (cons (match-string 4 gud-marker-acc) | |
| 987 | (string-to-int (match-string 3 gud-marker-acc))) | |
| 988 | start (match-end 0))) | |
| 989 | ||
| 990 | ;; Search for the last incomplete line in this chunk | |
| 991 | (while (string-match "\n" gud-marker-acc start) | |
| 992 | (setq start (match-end 0))) | |
| 993 | ||
| 994 | ;; If the incomplete line APPEARS to begin with another marker, keep it | |
| 995 | ;; in the accumulator. Otherwise, clear the accumulator to avoid an | |
| 996 | ;; unnecessary concat during the next call. | |
| 997 | (setq gud-marker-acc | |
| 998 | (if (string-match "Stopped\\|Frame" gud-marker-acc start) | |
| 999 | (substring gud-marker-acc (match-beginning 0)) | |
| 1000 | nil))) | |
| 1001 | string) | |
| 1002 | ||
| 1003 | ;;;###autoload | |
| 1004 | (defun dbx (command-line) | |
| 1005 | "Run dbx on program FILE in buffer *gud-FILE*. | |
| 1006 | The directory containing FILE becomes the initial working directory | |
| 1007 | and source-file directory for your debugger." | |
| 1008 | (interactive (list (gud-query-cmdline 'dbx))) | |
| 1009 | ||
| 1010 | (cond | |
| 1011 | (gud-mips-p | |
| 1012 | (gud-common-init command-line nil 'gud-mipsdbx-marker-filter)) | |
| 1013 | (gud-irix-p | |
| 1014 | (gud-common-init command-line 'gud-dbx-massage-args | |
| 1015 | 'gud-irixdbx-marker-filter)) | |
| 1016 | (gud-dgux-p | |
| 1017 | (gud-common-init command-line 'gud-dbx-massage-args | |
| 1018 | 'gud-dguxdbx-marker-filter)) | |
| 1019 | (t | |
| 1020 | (gud-common-init command-line 'gud-dbx-massage-args | |
| 1021 | 'gud-dbx-marker-filter))) | |
| 1022 | ||
| 1023 | (set (make-local-variable 'gud-minor-mode) 'dbx) | |
| 1024 | ||
| 1025 | (cond | |
| 1026 | (gud-mips-p | |
| 1027 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") | |
| 1028 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
| 1029 | (gud-def gud-break "stop at \"%f\":%l" | |
| 1030 | "\C-b" "Set breakpoint at current line.") | |
| 1031 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.")) | |
| 1032 | (gud-irix-p | |
| 1033 | (gud-def gud-break "stop at \"%d%f\":%l" | |
| 1034 | "\C-b" "Set breakpoint at current line.") | |
| 1035 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.") | |
| 1036 | (gud-def gud-up "up %p; printf \"\032\032%1d:\",(int)$curline;file\n" | |
| 1037 | "<" "Up (numeric arg) stack frames.") | |
| 1038 | (gud-def gud-down "down %p; printf \"\032\032%1d:\",(int)$curline;file\n" | |
| 1039 | ">" "Down (numeric arg) stack frames.") | |
| 1040 | ;; Make dbx give out the source location info that we need. | |
| 1041 | (process-send-string (get-buffer-process gud-comint-buffer) | |
| 1042 | "printf \"\032\032%1d:\",(int)$curline;file\n")) | |
| 1043 | (t | |
| 1044 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") | |
| 1045 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
| 1046 | (gud-def gud-break "file \"%d%f\"\nstop at %l" | |
| 1047 | "\C-b" "Set breakpoint at current line.") | |
| 1048 | (if gud-dbx-use-stopformat-p | |
| 1049 | (process-send-string (get-buffer-process gud-comint-buffer) | |
| 1050 | "set $stopformat=1\n")))) | |
| 1051 | ||
| 1052 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") | |
| 1053 | (gud-def gud-step "step %p" "\C-s" "Step one line with display.") | |
| 1054 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
| 1055 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
| 1056 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
| 1057 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") | |
| 1058 | ||
| 1059 | (setq comint-prompt-regexp "^[^)\n]*dbx) *") | |
| 1060 | (setq paragraph-start comint-prompt-regexp) | |
| 1061 | (run-hooks 'dbx-mode-hook) | |
| 1062 | ) | |
| 1063 | \f | |
| 1064 | ;; ====================================================================== | |
| 1065 | ;; xdb (HP PARISC debugger) functions | |
| 1066 | ||
| 1067 | ;; History of argument lists passed to xdb. | |
| 1068 | (defvar gud-xdb-history nil) | |
| 1069 | ||
| 1070 | (defcustom gud-xdb-directories nil | |
| 1071 | "*A list of directories that xdb should search for source code. | |
| 1072 | If nil, only source files in the program directory | |
| 1073 | will be known to xdb. | |
| 1074 | ||
| 1075 | The file names should be absolute, or relative to the directory | |
| 1076 | containing the executable being debugged." | |
| 1077 | :type '(choice (const :tag "Current Directory" nil) | |
| 1078 | (repeat :value ("") | |
| 1079 | directory)) | |
| 1080 | :group 'gud) | |
| 1081 | ||
| 1082 | (defun gud-xdb-massage-args (file args) | |
| 1083 | (nconc (let ((directories gud-xdb-directories) | |
| 1084 | (result nil)) | |
| 1085 | (while directories | |
| 1086 | (setq result (cons (car directories) (cons "-d" result))) | |
| 1087 | (setq directories (cdr directories))) | |
| 1088 | (nreverse result)) | |
| 1089 | args)) | |
| 1090 | ||
| 1091 | ;; xdb does not print the lines all at once, so we have to accumulate them | |
| 1092 | (defun gud-xdb-marker-filter (string) | |
| 1093 | (let (result) | |
| 1094 | (if (or (string-match comint-prompt-regexp string) | |
| 1095 | (string-match ".*\012" string)) | |
| 1096 | (setq result (concat gud-marker-acc string) | |
| 1097 | gud-marker-acc "") | |
| 1098 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
| 1099 | (if result | |
| 1100 | (if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\)[: ]" | |
| 1101 | result) | |
| 1102 | (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):" | |
| 1103 | result)) | |
| 1104 | (let ((line (string-to-int (match-string 2 result))) | |
| 1105 | (file (gud-file-name (match-string 1 result)))) | |
| 1106 | (if file | |
| 1107 | (setq gud-last-frame (cons file line)))))) | |
| 1108 | (or result ""))) | |
| 1109 | ||
| 1110 | ;;;###autoload | |
| 1111 | (defun xdb (command-line) | |
| 1112 | "Run xdb on program FILE in buffer *gud-FILE*. | |
| 1113 | The directory containing FILE becomes the initial working directory | |
| 1114 | and source-file directory for your debugger. | |
| 1115 | ||
| 1116 | You can set the variable 'gud-xdb-directories' to a list of program source | |
| 1117 | directories if your program contains sources from more than one directory." | |
| 1118 | (interactive (list (gud-query-cmdline 'xdb))) | |
| 1119 | ||
| 1120 | (gud-common-init command-line 'gud-xdb-massage-args | |
| 1121 | 'gud-xdb-marker-filter) | |
| 1122 | (set (make-local-variable 'gud-minor-mode) 'xdb) | |
| 1123 | ||
| 1124 | (gud-def gud-break "b %f:%l" "\C-b" "Set breakpoint at current line.") | |
| 1125 | (gud-def gud-tbreak "b %f:%l\\t" "\C-t" | |
| 1126 | "Set temporary breakpoint at current line.") | |
| 1127 | (gud-def gud-remove "db" "\C-d" "Remove breakpoint at current line") | |
| 1128 | (gud-def gud-step "s %p" "\C-s" "Step one line with display.") | |
| 1129 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
| 1130 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
| 1131 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") | |
| 1132 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
| 1133 | (gud-def gud-finish "bu\\t" "\C-f" "Finish executing current function.") | |
| 1134 | (gud-def gud-print "p %e" "\C-p" "Evaluate C expression at point.") | |
| 1135 | ||
| 1136 | (setq comint-prompt-regexp "^>") | |
| 1137 | (setq paragraph-start comint-prompt-regexp) | |
| 1138 | (run-hooks 'xdb-mode-hook)) | |
| 1139 | \f | |
| 1140 | ;; ====================================================================== | |
| 1141 | ;; perldb functions | |
| 1142 | ||
| 1143 | ;; History of argument lists passed to perldb. | |
| 1144 | (defvar gud-perldb-history nil) | |
| 1145 | ||
| 1146 | (defun gud-perldb-massage-args (file args) | |
| 1147 | "Convert a command line as would be typed normally to run perldb | |
| 1148 | into one that invokes an Emacs-enabled debugging session. | |
| 1149 | \"-emacs\" is inserted where it will be $ARGV[0] (see perl5db.pl)." | |
| 1150 | ;; FIXME: what if the command is `make perldb' and doesn't accept those extra | |
| 1151 | ;; arguments ? | |
| 1152 | (let* ((new-args nil) | |
| 1153 | (seen-e nil) | |
| 1154 | (shift (lambda () (push (pop args) new-args)))) | |
| 1155 | ||
| 1156 | ;; Pass all switches and -e scripts through. | |
| 1157 | (while (and args | |
| 1158 | (string-match "^-" (car args)) | |
| 1159 | (not (equal "-" (car args))) | |
| 1160 | (not (equal "--" (car args)))) | |
| 1161 | (when (equal "-e" (car args)) | |
| 1162 | ;; -e goes with the next arg, so shift one extra. | |
| 1163 | (or (funcall shift) | |
| 1164 | ;; -e as the last arg is an error in Perl. | |
| 1165 | (error "No code specified for -e")) | |
| 1166 | (setq seen-e t)) | |
| 1167 | (funcall shift)) | |
| 1168 | ||
| 1169 | (unless seen-e | |
| 1170 | (if (or (not args) | |
| 1171 | (string-match "^-" (car args))) | |
| 1172 | (error "Can't use stdin as the script to debug")) | |
| 1173 | ;; This is the program name. | |
| 1174 | (funcall shift)) | |
| 1175 | ||
| 1176 | ;; If -e specified, make sure there is a -- so -emacs is not taken | |
| 1177 | ;; as -e macs. | |
| 1178 | (if (and args (equal "--" (car args))) | |
| 1179 | (funcall shift) | |
| 1180 | (and seen-e (push "--" new-args))) | |
| 1181 | ||
| 1182 | (push "-emacs" new-args) | |
| 1183 | (while args | |
| 1184 | (funcall shift)) | |
| 1185 | ||
| 1186 | (nreverse new-args))) | |
| 1187 | ||
| 1188 | ;; There's no guarantee that Emacs will hand the filter the entire | |
| 1189 | ;; marker at once; it could be broken up across several strings. We | |
| 1190 | ;; might even receive a big chunk with several markers in it. If we | |
| 1191 | ;; receive a chunk of text which looks like it might contain the | |
| 1192 | ;; beginning of a marker, we save it here between calls to the | |
| 1193 | ;; filter. | |
| 1194 | (defun gud-perldb-marker-filter (string) | |
| 1195 | (setq gud-marker-acc (concat gud-marker-acc string)) | |
| 1196 | (let ((output "")) | |
| 1197 | ||
| 1198 | ;; Process all the complete markers in this chunk. | |
| 1199 | (while (string-match "\032\032\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\):.*\n" | |
| 1200 | gud-marker-acc) | |
| 1201 | (setq | |
| 1202 | ||
| 1203 | ;; Extract the frame position from the marker. | |
| 1204 | gud-last-frame | |
| 1205 | (cons (match-string 1 gud-marker-acc) | |
| 1206 | (string-to-int (match-string 3 gud-marker-acc))) | |
| 1207 | ||
| 1208 | ;; Append any text before the marker to the output we're going | |
| 1209 | ;; to return - we don't include the marker in this text. | |
| 1210 | output (concat output | |
| 1211 | (substring gud-marker-acc 0 (match-beginning 0))) | |
| 1212 | ||
| 1213 | ;; Set the accumulator to the remaining text. | |
| 1214 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
| 1215 | ||
| 1216 | ;; Does the remaining text look like it might end with the | |
| 1217 | ;; beginning of another marker? If it does, then keep it in | |
| 1218 | ;; gud-marker-acc until we receive the rest of it. Since we | |
| 1219 | ;; know the full marker regexp above failed, it's pretty simple to | |
| 1220 | ;; test for marker starts. | |
| 1221 | (if (string-match "\032.*\\'" gud-marker-acc) | |
| 1222 | (progn | |
| 1223 | ;; Everything before the potential marker start can be output. | |
| 1224 | (setq output (concat output (substring gud-marker-acc | |
| 1225 | 0 (match-beginning 0)))) | |
| 1226 | ||
| 1227 | ;; Everything after, we save, to combine with later input. | |
| 1228 | (setq gud-marker-acc | |
| 1229 | (substring gud-marker-acc (match-beginning 0)))) | |
| 1230 | ||
| 1231 | (setq output (concat output gud-marker-acc) | |
| 1232 | gud-marker-acc "")) | |
| 1233 | ||
| 1234 | output)) | |
| 1235 | ||
| 1236 | (defcustom gud-perldb-command-name "perl -d" | |
| 1237 | "Default command to execute a Perl script under debugger." | |
| 1238 | :type 'string | |
| 1239 | :group 'gud) | |
| 1240 | ||
| 1241 | ;;;###autoload | |
| 1242 | (defun perldb (command-line) | |
| 1243 | "Run perldb on program FILE in buffer *gud-FILE*. | |
| 1244 | The directory containing FILE becomes the initial working directory | |
| 1245 | and source-file directory for your debugger." | |
| 1246 | (interactive | |
| 1247 | (list (gud-query-cmdline 'perldb | |
| 1248 | (concat (or (buffer-file-name) "-e 0") " ")))) | |
| 1249 | ||
| 1250 | (gud-common-init command-line 'gud-perldb-massage-args | |
| 1251 | 'gud-perldb-marker-filter) | |
| 1252 | (set (make-local-variable 'gud-minor-mode) 'perldb) | |
| 1253 | ||
| 1254 | (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.") | |
| 1255 | (gud-def gud-remove "d %l" "\C-d" "Remove breakpoint at current line") | |
| 1256 | (gud-def gud-step "s" "\C-s" "Step one source line with display.") | |
| 1257 | (gud-def gud-next "n" "\C-n" "Step one line (skip functions).") | |
| 1258 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
| 1259 | ; (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
| 1260 | ; (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") | |
| 1261 | ; (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
| 1262 | (gud-def gud-print "%e" "\C-p" "Evaluate perl expression at point.") | |
| 1263 | ||
| 1264 | (setq comint-prompt-regexp "^ DB<+[0-9]+>+ ") | |
| 1265 | (setq paragraph-start comint-prompt-regexp) | |
| 1266 | (run-hooks 'perldb-mode-hook)) | |
| 1267 | \f | |
| 1268 | ;; ====================================================================== | |
| 1269 | ;; pdb (Python debugger) functions | |
| 1270 | ||
| 1271 | ;; History of argument lists passed to pdb. | |
| 1272 | (defvar gud-pdb-history nil) | |
| 1273 | ||
| 1274 | ;; Last group is for return value, e.g. "> test.py(2)foo()->None" | |
| 1275 | ;; Either file or function name may be omitted: "> <string>(0)?()" | |
| 1276 | (defvar gud-pdb-marker-regexp | |
| 1277 | "^> \\([-a-zA-Z0-9_/.:\\]*\\|<string>\\)(\\([0-9]+\\))\\([a-zA-Z0-9_]*\\|\\?\\)()\\(->[^\n]*\\)?\n") | |
| 1278 | (defvar gud-pdb-marker-regexp-file-group 1) | |
| 1279 | (defvar gud-pdb-marker-regexp-line-group 2) | |
| 1280 | (defvar gud-pdb-marker-regexp-fnname-group 3) | |
| 1281 | ||
| 1282 | (defvar gud-pdb-marker-regexp-start "^> ") | |
| 1283 | ||
| 1284 | ;; There's no guarantee that Emacs will hand the filter the entire | |
| 1285 | ;; marker at once; it could be broken up across several strings. We | |
| 1286 | ;; might even receive a big chunk with several markers in it. If we | |
| 1287 | ;; receive a chunk of text which looks like it might contain the | |
| 1288 | ;; beginning of a marker, we save it here between calls to the | |
| 1289 | ;; filter. | |
| 1290 | (defun gud-pdb-marker-filter (string) | |
| 1291 | (setq gud-marker-acc (concat gud-marker-acc string)) | |
| 1292 | (let ((output "")) | |
| 1293 | ||
| 1294 | ;; Process all the complete markers in this chunk. | |
| 1295 | (while (string-match gud-pdb-marker-regexp gud-marker-acc) | |
| 1296 | (setq | |
| 1297 | ||
| 1298 | ;; Extract the frame position from the marker. | |
| 1299 | gud-last-frame | |
| 1300 | (let ((file (match-string gud-pdb-marker-regexp-file-group | |
| 1301 | gud-marker-acc)) | |
| 1302 | (line (string-to-int | |
| 1303 | (match-string gud-pdb-marker-regexp-line-group | |
| 1304 | gud-marker-acc)))) | |
| 1305 | (if (string-equal file "<string>") | |
| 1306 | gud-last-frame | |
| 1307 | (cons file line))) | |
| 1308 | ||
| 1309 | ;; Output everything instead of the below | |
| 1310 | output (concat output (substring gud-marker-acc 0 (match-end 0))) | |
| 1311 | ;; ;; Append any text before the marker to the output we're going | |
| 1312 | ;; ;; to return - we don't include the marker in this text. | |
| 1313 | ;; output (concat output | |
| 1314 | ;; (substring gud-marker-acc 0 (match-beginning 0))) | |
| 1315 | ||
| 1316 | ;; Set the accumulator to the remaining text. | |
| 1317 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
| 1318 | ||
| 1319 | ;; Does the remaining text look like it might end with the | |
| 1320 | ;; beginning of another marker? If it does, then keep it in | |
| 1321 | ;; gud-marker-acc until we receive the rest of it. Since we | |
| 1322 | ;; know the full marker regexp above failed, it's pretty simple to | |
| 1323 | ;; test for marker starts. | |
| 1324 | (if (string-match gud-pdb-marker-regexp-start gud-marker-acc) | |
| 1325 | (progn | |
| 1326 | ;; Everything before the potential marker start can be output. | |
| 1327 | (setq output (concat output (substring gud-marker-acc | |
| 1328 | 0 (match-beginning 0)))) | |
| 1329 | ||
| 1330 | ;; Everything after, we save, to combine with later input. | |
| 1331 | (setq gud-marker-acc | |
| 1332 | (substring gud-marker-acc (match-beginning 0)))) | |
| 1333 | ||
| 1334 | (setq output (concat output gud-marker-acc) | |
| 1335 | gud-marker-acc "")) | |
| 1336 | ||
| 1337 | output)) | |
| 1338 | ||
| 1339 | (defcustom gud-pdb-command-name "pdb" | |
| 1340 | "File name for executing the Python debugger. | |
| 1341 | This should be an executable on your path, or an absolute file name." | |
| 1342 | :type 'string | |
| 1343 | :group 'gud) | |
| 1344 | ||
| 1345 | ;;;###autoload | |
| 1346 | (defun pdb (command-line) | |
| 1347 | "Run pdb on program FILE in buffer `*gud-FILE*'. | |
| 1348 | The directory containing FILE becomes the initial working directory | |
| 1349 | and source-file directory for your debugger." | |
| 1350 | (interactive | |
| 1351 | (list (gud-query-cmdline 'pdb))) | |
| 1352 | ||
| 1353 | (gud-common-init command-line nil 'gud-pdb-marker-filter) | |
| 1354 | (set (make-local-variable 'gud-minor-mode) 'pdb) | |
| 1355 | ||
| 1356 | (gud-def gud-break "break %l" "\C-b" "Set breakpoint at current line.") | |
| 1357 | (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line") | |
| 1358 | (gud-def gud-step "step" "\C-s" "Step one source line with display.") | |
| 1359 | (gud-def gud-next "next" "\C-n" "Step one line (skip functions).") | |
| 1360 | (gud-def gud-cont "continue" "\C-r" "Continue with display.") | |
| 1361 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.") | |
| 1362 | (gud-def gud-up "up" "<" "Up one stack frame.") | |
| 1363 | (gud-def gud-down "down" ">" "Down one stack frame.") | |
| 1364 | (gud-def gud-print "p %e" "\C-p" "Evaluate Python expression at point.") | |
| 1365 | ;; Is this right? | |
| 1366 | (gud-def gud-statement "! %e" "\C-e" "Execute Python statement at point.") | |
| 1367 | ||
| 1368 | ;; (setq comint-prompt-regexp "^(.*pdb[+]?) *") | |
| 1369 | (setq comint-prompt-regexp "^(Pdb) *") | |
| 1370 | (setq paragraph-start comint-prompt-regexp) | |
| 1371 | (run-hooks 'pdb-mode-hook)) | |
| 1372 | \f | |
| 1373 | ;; ====================================================================== | |
| 1374 | ;; | |
| 1375 | ;; JDB support. | |
| 1376 | ;; | |
| 1377 | ;; AUTHOR: Derek Davies <ddavies@world.std.com> | |
| 1378 | ;; Zoltan Kemenczy <zoltan@ieee.org;zkemenczy@rim.net> | |
| 1379 | ;; | |
| 1380 | ;; CREATED: Sun Feb 22 10:46:38 1998 Derek Davies. | |
| 1381 | ;; UPDATED: Nov 11, 2001 Zoltan Kemenczy | |
| 1382 | ;; Dec 10, 2002 Zoltan Kemenczy - added nested class support | |
| 1383 | ;; | |
| 1384 | ;; INVOCATION NOTES: | |
| 1385 | ;; | |
| 1386 | ;; You invoke jdb-mode with: | |
| 1387 | ;; | |
| 1388 | ;; M-x jdb <enter> | |
| 1389 | ;; | |
| 1390 | ;; It responds with: | |
| 1391 | ;; | |
| 1392 | ;; Run jdb (like this): jdb | |
| 1393 | ;; | |
| 1394 | ;; type any jdb switches followed by the name of the class you'd like to debug. | |
| 1395 | ;; Supply a fully qualfied classname (these do not have the ".class" extension) | |
| 1396 | ;; for the name of the class to debug (e.g. "COM.the-kind.ddavies.CoolClass"). | |
| 1397 | ;; See the known problems section below for restrictions when specifying jdb | |
| 1398 | ;; command line switches (search forward for '-classpath'). | |
| 1399 | ;; | |
| 1400 | ;; You should see something like the following: | |
| 1401 | ;; | |
| 1402 | ;; Current directory is ~/src/java/hello/ | |
| 1403 | ;; Initializing jdb... | |
| 1404 | ;; 0xed2f6628:class(hello) | |
| 1405 | ;; > | |
| 1406 | ;; | |
| 1407 | ;; To set an initial breakpoint try: | |
| 1408 | ;; | |
| 1409 | ;; > stop in hello.main | |
| 1410 | ;; Breakpoint set in hello.main | |
| 1411 | ;; > | |
| 1412 | ;; | |
| 1413 | ;; To execute the program type: | |
| 1414 | ;; | |
| 1415 | ;; > run | |
| 1416 | ;; run hello | |
| 1417 | ;; | |
| 1418 | ;; Breakpoint hit: running ... | |
| 1419 | ;; hello.main (hello:12) | |
| 1420 | ;; | |
| 1421 | ;; Type M-n to step over the current line and M-s to step into it. That, | |
| 1422 | ;; along with the JDB 'help' command should get you started. The 'quit' | |
| 1423 | ;; JDB command will get out out of the debugger. There is some truly | |
| 1424 | ;; pathetic JDB documentation available at: | |
| 1425 | ;; | |
| 1426 | ;; http://java.sun.com/products/jdk/1.1/debugging/ | |
| 1427 | ;; | |
| 1428 | ;; KNOWN PROBLEMS AND FIXME's: | |
| 1429 | ;; | |
| 1430 | ;; Not sure what happens with inner classes ... haven't tried them. | |
| 1431 | ;; | |
| 1432 | ;; Does not grok UNICODE id's. Only ASCII id's are supported. | |
| 1433 | ;; | |
| 1434 | ;; You must not put whitespace between "-classpath" and the path to | |
| 1435 | ;; search for java classes even though it is required when invoking jdb | |
| 1436 | ;; from the command line. See gud-jdb-massage-args for details. | |
| 1437 | ;; The same applies for "-sourcepath". | |
| 1438 | ;; | |
| 1439 | ;; Note: The following applies only if `gud-jdb-use-classpath' is nil; | |
| 1440 | ;; refer to the documentation of `gud-jdb-use-classpath' and | |
| 1441 | ;; `gud-jdb-classpath',`gud-jdb-sourcepath' variables for information | |
| 1442 | ;; on using the classpath for locating java source files. | |
| 1443 | ;; | |
| 1444 | ;; If any of the source files in the directories listed in | |
| 1445 | ;; gud-jdb-directories won't parse you'll have problems. Make sure | |
| 1446 | ;; every file ending in ".java" in these directories parses without error. | |
| 1447 | ;; | |
| 1448 | ;; All the .java files in the directories in gud-jdb-directories are | |
| 1449 | ;; syntactically analyzed each time gud jdb is invoked. It would be | |
| 1450 | ;; nice to keep as much information as possible between runs. It would | |
| 1451 | ;; be really nice to analyze the files only as neccessary (when the | |
| 1452 | ;; source needs to be displayed.) I'm not sure to what extent the former | |
| 1453 | ;; can be accomplished and I'm not sure the latter can be done at all | |
| 1454 | ;; since I don't know of any general way to tell which .class files are | |
| 1455 | ;; defined by which .java file without analyzing all the .java files. | |
| 1456 | ;; If anyone knows why JavaSoft didn't put the source file names in | |
| 1457 | ;; debuggable .class files please clue me in so I find something else | |
| 1458 | ;; to be spiteful and bitter about. | |
| 1459 | ;; | |
| 1460 | ;; ====================================================================== | |
| 1461 | ;; gud jdb variables and functions | |
| 1462 | ||
| 1463 | (defcustom gud-jdb-command-name "jdb" | |
| 1464 | "Command that executes the Java debugger." | |
| 1465 | :type 'string | |
| 1466 | :group 'gud) | |
| 1467 | ||
| 1468 | (defcustom gud-jdb-use-classpath t | |
| 1469 | "If non-nil, search for Java source files in classpath directories. | |
| 1470 | The list of directories to search is the value of `gud-jdb-classpath'. | |
| 1471 | The file pathname is obtained by converting the fully qualified | |
| 1472 | class information output by jdb to a relative pathname and appending | |
| 1473 | it to `gud-jdb-classpath' element by element until a match is found. | |
| 1474 | ||
| 1475 | This method has a significant jdb startup time reduction advantage | |
| 1476 | since it does not require the scanning of all `gud-jdb-directories' | |
| 1477 | and parsing all Java files for class information. | |
| 1478 | ||
| 1479 | Set to nil to use `gud-jdb-directories' to scan java sources for | |
| 1480 | class information on jdb startup (original method)." | |
| 1481 | :type 'boolean | |
| 1482 | :group 'gud) | |
| 1483 | ||
| 1484 | (defvar gud-jdb-classpath nil | |
| 1485 | "Java/jdb classpath directories list. | |
| 1486 | If `gud-jdb-use-classpath' is non-nil, gud-jdb derives the `gud-jdb-classpath' | |
| 1487 | list automatically using the following methods in sequence | |
| 1488 | \(with subsequent successful steps overriding the results of previous | |
| 1489 | steps): | |
| 1490 | ||
| 1491 | 1) Read the CLASSPATH environment variable, | |
| 1492 | 2) Read any \"-classpath\" argument used to run jdb, | |
| 1493 | or detected in jdb output (e.g. if jdb is run by a script | |
| 1494 | that echoes the actual jdb command before starting jdb) | |
| 1495 | 3) Send a \"classpath\" command to jdb and scan jdb output for | |
| 1496 | classpath information if jdb is invoked with an \"-attach\" (to | |
| 1497 | an already running VM) argument (This case typically does not | |
| 1498 | have a \"-classpath\" command line argument - that is provided | |
| 1499 | to the VM when it is started). | |
| 1500 | ||
| 1501 | Note that method 3 cannot be used with oldjdb (or Java 1 jdb) since | |
| 1502 | those debuggers do not support the classpath command. Use 1) or 2).") | |
| 1503 | ||
| 1504 | (defvar gud-jdb-sourcepath nil | |
| 1505 | "Directory list provided by an (optional) \"-sourcepath\" option to jdb. | |
| 1506 | This list is prepended to `gud-jdb-classpath' to form the complete | |
| 1507 | list of directories searched for source files.") | |
| 1508 | ||
| 1509 | (defvar gud-marker-acc-max-length 4000 | |
| 1510 | "Maximum number of debugger output characters to keep. | |
| 1511 | This variable limits the size of `gud-marker-acc' which holds | |
| 1512 | the most recent debugger output history while searching for | |
| 1513 | source file information.") | |
| 1514 | ||
| 1515 | (defvar gud-jdb-history nil | |
| 1516 | "History of argument lists passed to jdb.") | |
| 1517 | ||
| 1518 | ||
| 1519 | ;; List of Java source file directories. | |
| 1520 | (defvar gud-jdb-directories (list ".") | |
| 1521 | "*A list of directories that gud jdb should search for source code. | |
| 1522 | The file names should be absolute, or relative to the current | |
| 1523 | directory. | |
| 1524 | ||
| 1525 | The set of .java files residing in the directories listed are | |
| 1526 | syntactically analyzed to determine the classes they define and the | |
| 1527 | packages in which these classes belong. In this way gud jdb maps the | |
| 1528 | package-qualified class names output by the jdb debugger to the source | |
| 1529 | file from which the class originated. This allows gud mode to keep | |
| 1530 | the source code display in sync with the debugging session.") | |
| 1531 | ||
| 1532 | (defvar gud-jdb-source-files nil | |
| 1533 | "List of the java source files for this debugging session.") | |
| 1534 | ||
| 1535 | ;; Association list of fully qualified class names (package + class name) | |
| 1536 | ;; and their source files. | |
| 1537 | (defvar gud-jdb-class-source-alist nil | |
| 1538 | "Association list of fully qualified class names and source files.") | |
| 1539 | ||
| 1540 | ;; This is used to hold a source file during analysis. | |
| 1541 | (defvar gud-jdb-analysis-buffer nil) | |
| 1542 | ||
| 1543 | (defvar gud-jdb-classpath-string nil | |
| 1544 | "Holds temporary classpath values.") | |
| 1545 | ||
| 1546 | (defun gud-jdb-build-source-files-list (path extn) | |
| 1547 | "Return a list of java source files (absolute paths). | |
| 1548 | PATH gives the directories in which to search for files with | |
| 1549 | extension EXTN. Normally EXTN is given as the regular expression | |
| 1550 | \"\\.java$\" ." | |
| 1551 | (apply 'nconc (mapcar (lambda (d) | |
| 1552 | (when (file-directory-p d) | |
| 1553 | (directory-files d t extn nil))) | |
| 1554 | path))) | |
| 1555 | ||
| 1556 | ;; Move point past whitespace. | |
| 1557 | (defun gud-jdb-skip-whitespace () | |
| 1558 | (skip-chars-forward " \n\r\t\014")) | |
| 1559 | ||
| 1560 | ;; Move point past a "// <eol>" type of comment. | |
| 1561 | (defun gud-jdb-skip-single-line-comment () | |
| 1562 | (end-of-line)) | |
| 1563 | ||
| 1564 | ;; Move point past a "/* */" or "/** */" type of comment. | |
| 1565 | (defun gud-jdb-skip-traditional-or-documentation-comment () | |
| 1566 | (forward-char 2) | |
| 1567 | (catch 'break | |
| 1568 | (while (not (eobp)) | |
| 1569 | (if (eq (following-char) ?*) | |
| 1570 | (progn | |
| 1571 | (forward-char) | |
| 1572 | (if (not (eobp)) | |
| 1573 | (if (eq (following-char) ?/) | |
| 1574 | (progn | |
| 1575 | (forward-char) | |
| 1576 | (throw 'break nil))))) | |
| 1577 | (forward-char))))) | |
| 1578 | ||
| 1579 | ;; Move point past any number of consecutive whitespace chars and/or comments. | |
| 1580 | (defun gud-jdb-skip-whitespace-and-comments () | |
| 1581 | (gud-jdb-skip-whitespace) | |
| 1582 | (catch 'done | |
| 1583 | (while t | |
| 1584 | (cond | |
| 1585 | ((looking-at "//") | |
| 1586 | (gud-jdb-skip-single-line-comment) | |
| 1587 | (gud-jdb-skip-whitespace)) | |
| 1588 | ((looking-at "/\\*") | |
| 1589 | (gud-jdb-skip-traditional-or-documentation-comment) | |
| 1590 | (gud-jdb-skip-whitespace)) | |
| 1591 | (t (throw 'done nil)))))) | |
| 1592 | ||
| 1593 | ;; Move point past things that are id-like. The intent is to skip regular | |
| 1594 | ;; id's, such as class or interface names as well as package and interface | |
| 1595 | ;; names. | |
| 1596 | (defun gud-jdb-skip-id-ish-thing () | |
| 1597 | (skip-chars-forward "^ /\n\r\t\014,;{")) | |
| 1598 | ||
| 1599 | ;; Move point past a string literal. | |
| 1600 | (defun gud-jdb-skip-string-literal () | |
| 1601 | (forward-char) | |
| 1602 | (while (not (cond | |
| 1603 | ((eq (following-char) ?\\) | |
| 1604 | (forward-char)) | |
| 1605 | ((eq (following-char) ?\042)))) | |
| 1606 | (forward-char)) | |
| 1607 | (forward-char)) | |
| 1608 | ||
| 1609 | ;; Move point past a character literal. | |
| 1610 | (defun gud-jdb-skip-character-literal () | |
| 1611 | (forward-char) | |
| 1612 | (while | |
| 1613 | (progn | |
| 1614 | (if (eq (following-char) ?\\) | |
| 1615 | (forward-char 2)) | |
| 1616 | (not (eq (following-char) ?\'))) | |
| 1617 | (forward-char)) | |
| 1618 | (forward-char)) | |
| 1619 | ||
| 1620 | ;; Move point past the following block. There may be (legal) cruft before | |
| 1621 | ;; the block's opening brace. There must be a block or it's the end of life | |
| 1622 | ;; in petticoat junction. | |
| 1623 | (defun gud-jdb-skip-block () | |
| 1624 | ||
| 1625 | ;; Find the begining of the block. | |
| 1626 | (while | |
| 1627 | (not (eq (following-char) ?{)) | |
| 1628 | ||
| 1629 | ;; Skip any constructs that can harbor literal block delimiter | |
| 1630 | ;; characters and/or the delimiters for the constructs themselves. | |
| 1631 | (cond | |
| 1632 | ((looking-at "//") | |
| 1633 | (gud-jdb-skip-single-line-comment)) | |
| 1634 | ((looking-at "/\\*") | |
| 1635 | (gud-jdb-skip-traditional-or-documentation-comment)) | |
| 1636 | ((eq (following-char) ?\042) | |
| 1637 | (gud-jdb-skip-string-literal)) | |
| 1638 | ((eq (following-char) ?\') | |
| 1639 | (gud-jdb-skip-character-literal)) | |
| 1640 | (t (forward-char)))) | |
| 1641 | ||
| 1642 | ;; Now at the begining of the block. | |
| 1643 | (forward-char) | |
| 1644 | ||
| 1645 | ;; Skip over the body of the block as well as the final brace. | |
| 1646 | (let ((open-level 1)) | |
| 1647 | (while (not (eq open-level 0)) | |
| 1648 | (cond | |
| 1649 | ((looking-at "//") | |
| 1650 | (gud-jdb-skip-single-line-comment)) | |
| 1651 | ((looking-at "/\\*") | |
| 1652 | (gud-jdb-skip-traditional-or-documentation-comment)) | |
| 1653 | ((eq (following-char) ?\042) | |
| 1654 | (gud-jdb-skip-string-literal)) | |
| 1655 | ((eq (following-char) ?\') | |
| 1656 | (gud-jdb-skip-character-literal)) | |
| 1657 | ((eq (following-char) ?{) | |
| 1658 | (setq open-level (+ open-level 1)) | |
| 1659 | (forward-char)) | |
| 1660 | ((eq (following-char) ?}) | |
| 1661 | (setq open-level (- open-level 1)) | |
| 1662 | (forward-char)) | |
| 1663 | (t (forward-char)))))) | |
| 1664 | ||
| 1665 | ;; Find the package and class definitions in Java source file FILE. Assumes | |
| 1666 | ;; that FILE contains a legal Java program. BUF is a scratch buffer used | |
| 1667 | ;; to hold the source during analysis. | |
| 1668 | (defun gud-jdb-analyze-source (buf file) | |
| 1669 | (let ((l nil)) | |
| 1670 | (set-buffer buf) | |
| 1671 | (insert-file-contents file nil nil nil t) | |
| 1672 | (goto-char 0) | |
| 1673 | (catch 'abort | |
| 1674 | (let ((p "")) | |
| 1675 | (while (progn | |
| 1676 | (gud-jdb-skip-whitespace) | |
| 1677 | (not (eobp))) | |
| 1678 | (cond | |
| 1679 | ||
| 1680 | ;; Any number of semi's following a block is legal. Move point | |
| 1681 | ;; past them. Note that comments and whitespace may be | |
| 1682 | ;; interspersed as well. | |
| 1683 | ((eq (following-char) ?\073) | |
| 1684 | (forward-char)) | |
| 1685 | ||
| 1686 | ;; Move point past a single line comment. | |
| 1687 | ((looking-at "//") | |
| 1688 | (gud-jdb-skip-single-line-comment)) | |
| 1689 | ||
| 1690 | ;; Move point past a traditional or documentation comment. | |
| 1691 | ((looking-at "/\\*") | |
| 1692 | (gud-jdb-skip-traditional-or-documentation-comment)) | |
| 1693 | ||
| 1694 | ;; Move point past a package statement, but save the PackageName. | |
| 1695 | ((looking-at "package") | |
| 1696 | (forward-char 7) | |
| 1697 | (gud-jdb-skip-whitespace-and-comments) | |
| 1698 | (let ((s (point))) | |
| 1699 | (gud-jdb-skip-id-ish-thing) | |
| 1700 | (setq p (concat (buffer-substring s (point)) ".")) | |
| 1701 | (gud-jdb-skip-whitespace-and-comments) | |
| 1702 | (if (eq (following-char) ?\073) | |
| 1703 | (forward-char)))) | |
| 1704 | ||
| 1705 | ;; Move point past an import statement. | |
| 1706 | ((looking-at "import") | |
| 1707 | (forward-char 6) | |
| 1708 | (gud-jdb-skip-whitespace-and-comments) | |
| 1709 | (gud-jdb-skip-id-ish-thing) | |
| 1710 | (gud-jdb-skip-whitespace-and-comments) | |
| 1711 | (if (eq (following-char) ?\073) | |
| 1712 | (forward-char))) | |
| 1713 | ||
| 1714 | ;; Move point past the various kinds of ClassModifiers. | |
| 1715 | ((looking-at "public") | |
| 1716 | (forward-char 6)) | |
| 1717 | ((looking-at "abstract") | |
| 1718 | (forward-char 8)) | |
| 1719 | ((looking-at "final") | |
| 1720 | (forward-char 5)) | |
| 1721 | ||
| 1722 | ;; Move point past a ClassDeclaraction, but save the class | |
| 1723 | ;; Identifier. | |
| 1724 | ((looking-at "class") | |
| 1725 | (forward-char 5) | |
| 1726 | (gud-jdb-skip-whitespace-and-comments) | |
| 1727 | (let ((s (point))) | |
| 1728 | (gud-jdb-skip-id-ish-thing) | |
| 1729 | (setq | |
| 1730 | l (nconc l (list (concat p (buffer-substring s (point))))))) | |
| 1731 | (gud-jdb-skip-block)) | |
| 1732 | ||
| 1733 | ;; Move point past an interface statement. | |
| 1734 | ((looking-at "interface") | |
| 1735 | (forward-char 9) | |
| 1736 | (gud-jdb-skip-block)) | |
| 1737 | ||
| 1738 | ;; Anything else means the input is invalid. | |
| 1739 | (t | |
| 1740 | (message (format "Error parsing file %s." file)) | |
| 1741 | (throw 'abort nil)))))) | |
| 1742 | l)) | |
| 1743 | ||
| 1744 | (defun gud-jdb-build-class-source-alist-for-file (file) | |
| 1745 | (mapcar | |
| 1746 | (lambda (c) | |
| 1747 | (cons c file)) | |
| 1748 | (gud-jdb-analyze-source gud-jdb-analysis-buffer file))) | |
| 1749 | ||
| 1750 | ;; Return an alist of fully qualified classes and the source files | |
| 1751 | ;; holding their definitions. SOURCES holds a list of all the source | |
| 1752 | ;; files to examine. | |
| 1753 | (defun gud-jdb-build-class-source-alist (sources) | |
| 1754 | (setq gud-jdb-analysis-buffer (get-buffer-create " *gud-jdb-scratch*")) | |
| 1755 | (prog1 | |
| 1756 | (apply | |
| 1757 | 'nconc | |
| 1758 | (mapcar | |
| 1759 | 'gud-jdb-build-class-source-alist-for-file | |
| 1760 | sources)) | |
| 1761 | (kill-buffer gud-jdb-analysis-buffer) | |
| 1762 | (setq gud-jdb-analysis-buffer nil))) | |
| 1763 | ||
| 1764 | ;; Change what was given in the minibuffer to something that can be used to | |
| 1765 | ;; invoke the debugger. | |
| 1766 | (defun gud-jdb-massage-args (file args) | |
| 1767 | ;; The jdb executable must have whitespace between "-classpath" and | |
| 1768 | ;; its value while gud-common-init expects all switch values to | |
| 1769 | ;; follow the switch keyword without intervening whitespace. We | |
| 1770 | ;; require that when the user enters the "-classpath" switch in the | |
| 1771 | ;; EMACS minibuffer that they do so without the intervening | |
| 1772 | ;; whitespace. This function adds it back (it's called after | |
| 1773 | ;; gud-common-init). There are more switches like this (for | |
| 1774 | ;; instance "-host" and "-password") but I don't care about them | |
| 1775 | ;; yet. | |
| 1776 | (if args | |
| 1777 | (let (massaged-args user-error) | |
| 1778 | ||
| 1779 | (while (and args (not user-error)) | |
| 1780 | (cond | |
| 1781 | ((setq user-error (string-match "-classpath$" (car args)))) | |
| 1782 | ((setq user-error (string-match "-sourcepath$" (car args)))) | |
| 1783 | ((string-match "-classpath\\(.+\\)" (car args)) | |
| 1784 | (setq massaged-args | |
| 1785 | (append massaged-args | |
| 1786 | (list "-classpath" | |
| 1787 | (setq gud-jdb-classpath-string | |
| 1788 | (match-string 1 (car args))))))) | |
| 1789 | ((string-match "-sourcepath\\(.+\\)" (car args)) | |
| 1790 | (setq massaged-args | |
| 1791 | (append massaged-args | |
| 1792 | (list "-sourcepath" | |
| 1793 | (setq gud-jdb-sourcepath | |
| 1794 | (match-string 1 (car args))))))) | |
| 1795 | (t (setq massaged-args (append massaged-args (list (car args)))))) | |
| 1796 | (setq args (cdr args))) | |
| 1797 | ||
| 1798 | ;; By this point the current directory is all screwed up. Maybe we | |
| 1799 | ;; could fix things and re-invoke gud-common-init, but for now I think | |
| 1800 | ;; issueing the error is good enough. | |
| 1801 | (if user-error | |
| 1802 | (progn | |
| 1803 | (kill-buffer (current-buffer)) | |
| 1804 | (error "Error: Omit whitespace between '-classpath or -sourcepath' and its value"))) | |
| 1805 | massaged-args))) | |
| 1806 | ||
| 1807 | ;; Search for an association with P, a fully qualified class name, in | |
| 1808 | ;; gud-jdb-class-source-alist. The asssociation gives the fully | |
| 1809 | ;; qualified file name of the source file which produced the class. | |
| 1810 | (defun gud-jdb-find-source-file (p) | |
| 1811 | (cdr (assoc p gud-jdb-class-source-alist))) | |
| 1812 | ||
| 1813 | ;; Note: Reset to this value every time a prompt is seen | |
| 1814 | (defvar gud-jdb-lowest-stack-level 999) | |
| 1815 | ||
| 1816 | (defun gud-jdb-find-source-using-classpath (p) | |
| 1817 | "Find source file corresponding to fully qualified class p. | |
| 1818 | Convert p from jdb's output, converted to a pathname | |
| 1819 | relative to a classpath directory." | |
| 1820 | (save-match-data | |
| 1821 | (let | |
| 1822 | (;; Replace dots with slashes and append ".java" to generate file | |
| 1823 | ;; name relative to classpath | |
| 1824 | (filename | |
| 1825 | (concat | |
| 1826 | (mapconcat 'identity | |
| 1827 | (split-string | |
| 1828 | ;; Eliminate any subclass references in the class | |
| 1829 | ;; name string. These start with a "$" | |
| 1830 | ((lambda (x) | |
| 1831 | (if (string-match "$.*" x) | |
| 1832 | (replace-match "" t t x) p)) | |
| 1833 | p) | |
| 1834 | "\\.") "/") | |
| 1835 | ".java")) | |
| 1836 | (cplist (append gud-jdb-sourcepath gud-jdb-classpath)) | |
| 1837 | found-file) | |
| 1838 | (while (and cplist | |
| 1839 | (not (setq found-file | |
| 1840 | (file-readable-p | |
| 1841 | (concat (car cplist) "/" filename))))) | |
| 1842 | (setq cplist (cdr cplist))) | |
| 1843 | (if found-file (concat (car cplist) "/" filename))))) | |
| 1844 | ||
| 1845 | (defun gud-jdb-find-source (string) | |
| 1846 | "Alias for function used to locate source files. | |
| 1847 | Set to `gud-jdb-find-source-using-classpath' or `gud-jdb-find-source-file' | |
| 1848 | during jdb initialization depending on the value of | |
| 1849 | `gud-jdb-use-classpath'." | |
| 1850 | nil) | |
| 1851 | ||
| 1852 | (defun gud-jdb-parse-classpath-string (string) | |
| 1853 | "Parse the classpath list and convert each item to an absolute pathname." | |
| 1854 | (mapcar (lambda (s) (if (string-match "[/\\]$" s) | |
| 1855 | (replace-match "" nil nil s) s)) | |
| 1856 | (mapcar 'file-truename | |
| 1857 | (split-string | |
| 1858 | string | |
| 1859 | (concat "[ \t\n\r,\"" path-separator "]+"))))) | |
| 1860 | ||
| 1861 | ;; See comentary for other debugger's marker filters - there you will find | |
| 1862 | ;; important notes about STRING. | |
| 1863 | (defun gud-jdb-marker-filter (string) | |
| 1864 | ||
| 1865 | ;; Build up the accumulator. | |
| 1866 | (setq gud-marker-acc | |
| 1867 | (if gud-marker-acc | |
| 1868 | (concat gud-marker-acc string) | |
| 1869 | string)) | |
| 1870 | ||
| 1871 | ;; Look for classpath information until gud-jdb-classpath-string is found | |
| 1872 | ;; (interactive, multiple settings of classpath from jdb | |
| 1873 | ;; not supported/followed) | |
| 1874 | (if (and gud-jdb-use-classpath | |
| 1875 | (not gud-jdb-classpath-string) | |
| 1876 | (or (string-match "classpath:[ \t[]+\\([^]]+\\)" gud-marker-acc) | |
| 1877 | (string-match "-classpath[ \t\"]+\\([^ \"]+\\)" gud-marker-acc))) | |
| 1878 | (setq gud-jdb-classpath | |
| 1879 | (gud-jdb-parse-classpath-string | |
| 1880 | (setq gud-jdb-classpath-string | |
| 1881 | (match-string 1 gud-marker-acc))))) | |
| 1882 | ||
| 1883 | ;; We process STRING from left to right. Each time through the | |
| 1884 | ;; following loop we process at most one marker. After we've found a | |
| 1885 | ;; marker, delete gud-marker-acc up to and including the match | |
| 1886 | (let (file-found) | |
| 1887 | ;; Process each complete marker in the input. | |
| 1888 | (while | |
| 1889 | ||
| 1890 | ;; Do we see a marker? | |
| 1891 | (string-match | |
| 1892 | ;; jdb puts out a string of the following form when it | |
| 1893 | ;; hits a breakpoint: | |
| 1894 | ;; | |
| 1895 | ;; <fully-qualified-class><method> (<class>:<line-number>) | |
| 1896 | ;; | |
| 1897 | ;; <fully-qualified-class>'s are composed of Java ID's | |
| 1898 | ;; separated by periods. <method> and <class> are | |
| 1899 | ;; also Java ID's. <method> begins with a period and | |
| 1900 | ;; may contain less-than and greater-than (constructors, | |
| 1901 | ;; for instance, are called <init> in the symbol table.) | |
| 1902 | ;; Java ID's begin with a letter followed by letters | |
| 1903 | ;; and/or digits. The set of letters includes underscore | |
| 1904 | ;; and dollar sign. | |
| 1905 | ;; | |
| 1906 | ;; The first group matches <fully-qualified-class>, | |
| 1907 | ;; the second group matches <class> and the third group | |
| 1908 | ;; matches <line-number>. We don't care about using | |
| 1909 | ;; <method> so we don't "group" it. | |
| 1910 | ;; | |
| 1911 | ;; FIXME: Java ID's are UNICODE strings, this matches ASCII | |
| 1912 | ;; ID's only. | |
| 1913 | ;; | |
| 1914 | ;; The "," in the last square-bracket is necessary because of | |
| 1915 | ;; Sun's total disrespect for backwards compatibility in | |
| 1916 | ;; reported line numbers from jdb - starting in 1.4.0 they | |
| 1917 | ;; introduced a comma at the thousands position (how | |
| 1918 | ;; ingenious!) | |
| 1919 | ||
| 1920 | "\\(\[[0-9]+\] \\)*\\([a-zA-Z0-9.$_]+\\)\\.[a-zA-Z0-9$_<>(),]+ \ | |
| 1921 | \\(([a-zA-Z0-9.$_]+:\\|line=\\)\\([0-9,]+\\)" | |
| 1922 | gud-marker-acc) | |
| 1923 | ||
| 1924 | ;; A good marker is one that: | |
| 1925 | ;; 1) does not have a "[n] " prefix (not part of a stack backtrace) | |
| 1926 | ;; 2) does have an "[n] " prefix and n is the lowest prefix seen | |
| 1927 | ;; since the last prompt | |
| 1928 | ;; Figure out the line on which to position the debugging arrow. | |
| 1929 | ;; Return the info as a cons of the form: | |
| 1930 | ;; | |
| 1931 | ;; (<file-name> . <line-number>) . | |
| 1932 | (if (if (match-beginning 1) | |
| 1933 | (let (n) | |
| 1934 | (setq n (string-to-int (substring | |
| 1935 | gud-marker-acc | |
| 1936 | (1+ (match-beginning 1)) | |
| 1937 | (- (match-end 1) 2)))) | |
| 1938 | (if (< n gud-jdb-lowest-stack-level) | |
| 1939 | (progn (setq gud-jdb-lowest-stack-level n) t))) | |
| 1940 | t) | |
| 1941 | (if (setq file-found | |
| 1942 | (gud-jdb-find-source (match-string 2 gud-marker-acc))) | |
| 1943 | (setq gud-last-frame | |
| 1944 | (cons file-found | |
| 1945 | (string-to-int | |
| 1946 | (let | |
| 1947 | ((numstr (match-string 4 gud-marker-acc))) | |
| 1948 | (if (string-match "," numstr) | |
| 1949 | (replace-match "" nil nil numstr) | |
| 1950 | numstr))))) | |
| 1951 | (message "Could not find source file."))) | |
| 1952 | ||
| 1953 | ;; Set the accumulator to the remaining text. | |
| 1954 | (setq gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
| 1955 | ||
| 1956 | (if (string-match comint-prompt-regexp gud-marker-acc) | |
| 1957 | (setq gud-jdb-lowest-stack-level 999))) | |
| 1958 | ||
| 1959 | ;; Do not allow gud-marker-acc to grow without bound. If the source | |
| 1960 | ;; file information is not within the last 3/4 | |
| 1961 | ;; gud-marker-acc-max-length characters, well,... | |
| 1962 | (if (> (length gud-marker-acc) gud-marker-acc-max-length) | |
| 1963 | (setq gud-marker-acc | |
| 1964 | (substring gud-marker-acc | |
| 1965 | (- (/ (* gud-marker-acc-max-length 3) 4))))) | |
| 1966 | ||
| 1967 | ;; We don't filter any debugger output so just return what we were given. | |
| 1968 | string) | |
| 1969 | ||
| 1970 | (defvar gud-jdb-command-name "jdb" "Command that executes the Java debugger.") | |
| 1971 | ||
| 1972 | ;;;###autoload | |
| 1973 | (defun jdb (command-line) | |
| 1974 | "Run jdb with command line COMMAND-LINE in a buffer. | |
| 1975 | The buffer is named \"*gud*\" if no initial class is given or | |
| 1976 | \"*gud-<initial-class-basename>*\" if there is. If the \"-classpath\" | |
| 1977 | switch is given, omit all whitespace between it and its value. | |
| 1978 | ||
| 1979 | See `gud-jdb-use-classpath' and `gud-jdb-classpath' documentation for | |
| 1980 | information on how jdb accesses source files. Alternatively (if | |
| 1981 | `gud-jdb-use-classpath' is nil), see `gud-jdb-directories' for the | |
| 1982 | original source file access method. | |
| 1983 | ||
| 1984 | For general information about commands available to control jdb from | |
| 1985 | gud, see `gud-mode'." | |
| 1986 | (interactive | |
| 1987 | (list (gud-query-cmdline 'jdb))) | |
| 1988 | (setq gud-jdb-classpath nil) | |
| 1989 | (setq gud-jdb-sourcepath nil) | |
| 1990 | ||
| 1991 | ;; Set gud-jdb-classpath from the CLASSPATH environment variable, | |
| 1992 | ;; if CLASSPATH is set. | |
| 1993 | (setq gud-jdb-classpath-string (getenv "CLASSPATH")) | |
| 1994 | (if gud-jdb-classpath-string | |
| 1995 | (setq gud-jdb-classpath | |
| 1996 | (gud-jdb-parse-classpath-string gud-jdb-classpath-string))) | |
| 1997 | (setq gud-jdb-classpath-string nil) ; prepare for next | |
| 1998 | ||
| 1999 | (gud-common-init command-line 'gud-jdb-massage-args | |
| 2000 | 'gud-jdb-marker-filter) | |
| 2001 | (set (make-local-variable 'gud-minor-mode) 'jdb) | |
| 2002 | ||
| 2003 | ;; If a -classpath option was provided, set gud-jdb-classpath | |
| 2004 | (if gud-jdb-classpath-string | |
| 2005 | (setq gud-jdb-classpath | |
| 2006 | (gud-jdb-parse-classpath-string gud-jdb-classpath-string))) | |
| 2007 | (setq gud-jdb-classpath-string nil) ; prepare for next | |
| 2008 | ;; If a -sourcepath option was provided, parse it | |
| 2009 | (if gud-jdb-sourcepath | |
| 2010 | (setq gud-jdb-sourcepath | |
| 2011 | (gud-jdb-parse-classpath-string gud-jdb-sourcepath))) | |
| 2012 | ||
| 2013 | (gud-def gud-break "stop at %c:%l" "\C-b" "Set breakpoint at current line.") | |
| 2014 | (gud-def gud-remove "clear %c:%l" "\C-d" "Remove breakpoint at current line") | |
| 2015 | (gud-def gud-step "step" "\C-s" "Step one source line with display.") | |
| 2016 | (gud-def gud-next "next" "\C-n" "Step one line (skip functions).") | |
| 2017 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
| 2018 | (gud-def gud-finish "step up" "\C-f" "Continue until current method returns.") | |
| 2019 | (gud-def gud-up "up\C-Mwhere" "<" "Up one stack frame.") | |
| 2020 | (gud-def gud-down "down\C-Mwhere" ">" "Up one stack frame.") | |
| 2021 | (gud-def gud-run "run" nil "Run the program.") ;if VM start using jdb | |
| 2022 | ||
| 2023 | (setq comint-prompt-regexp "^> \\|^[^ ]+\\[[0-9]+\\] ") | |
| 2024 | (setq paragraph-start comint-prompt-regexp) | |
| 2025 | (run-hooks 'jdb-mode-hook) | |
| 2026 | ||
| 2027 | (if gud-jdb-use-classpath | |
| 2028 | ;; Get the classpath information from the debugger | |
| 2029 | (progn | |
| 2030 | (if (string-match "-attach" command-line) | |
| 2031 | (gud-call "classpath")) | |
| 2032 | (fset 'gud-jdb-find-source | |
| 2033 | 'gud-jdb-find-source-using-classpath)) | |
| 2034 | ||
| 2035 | ;; Else create and bind the class/source association list as well | |
| 2036 | ;; as the source file list. | |
| 2037 | (setq gud-jdb-class-source-alist | |
| 2038 | (gud-jdb-build-class-source-alist | |
| 2039 | (setq gud-jdb-source-files | |
| 2040 | (gud-jdb-build-source-files-list gud-jdb-directories | |
| 2041 | "\\.java$")))) | |
| 2042 | (fset 'gud-jdb-find-source 'gud-jdb-find-source-file))) | |
| 2043 | \f | |
| 2044 | ||
| 2045 | ;; ====================================================================== | |
| 2046 | ;; | |
| 2047 | ;; BASHDB support. See http://bashdb.sourceforge.net | |
| 2048 | ;; | |
| 2049 | ;; AUTHOR: Rocky Bernstein <rocky@panix.com> | |
| 2050 | ;; | |
| 2051 | ;; CREATED: Sun Nov 10 10:46:38 2002 Rocky Bernstein. | |
| 2052 | ;; | |
| 2053 | ;; INVOCATION NOTES: | |
| 2054 | ;; | |
| 2055 | ;; You invoke bashdb-mode with: | |
| 2056 | ;; | |
| 2057 | ;; M-x bashdb <enter> | |
| 2058 | ;; | |
| 2059 | ;; It responds with: | |
| 2060 | ;; | |
| 2061 | ;; Run bashdb (like this): bash | |
| 2062 | ;; | |
| 2063 | ||
| 2064 | ;; History of argument lists passed to bashdb. | |
| 2065 | (defvar gud-bashdb-history nil) | |
| 2066 | ||
| 2067 | ;; Convert a command line as would be typed normally to run a script | |
| 2068 | ;; into one that invokes an Emacs-enabled debugging session. | |
| 2069 | ;; "--debugger" in inserted as the first switch. | |
| 2070 | ||
| 2071 | ;; There's no guarantee that Emacs will hand the filter the entire | |
| 2072 | ;; marker at once; it could be broken up across several strings. We | |
| 2073 | ;; might even receive a big chunk with several markers in it. If we | |
| 2074 | ;; receive a chunk of text which looks like it might contain the | |
| 2075 | ;; beginning of a marker, we save it here between calls to the | |
| 2076 | ;; filter. | |
| 2077 | (defun gud-bashdb-marker-filter (string) | |
| 2078 | (setq gud-marker-acc (concat gud-marker-acc string)) | |
| 2079 | (let ((output "")) | |
| 2080 | ||
| 2081 | ;; Process all the complete markers in this chunk. | |
| 2082 | ;; Format of line looks like this: | |
| 2083 | ;; (/etc/init.d/ntp.init:16): | |
| 2084 | ;; but we also allow DOS drive letters | |
| 2085 | ;; (d:/etc/init.d/ntp.init:16): | |
| 2086 | (while (string-match "\\(^\\|\n\\)(\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\)):.*\n" | |
| 2087 | gud-marker-acc) | |
| 2088 | (setq | |
| 2089 | ||
| 2090 | ;; Extract the frame position from the marker. | |
| 2091 | gud-last-frame | |
| 2092 | (cons (match-string 2 gud-marker-acc) | |
| 2093 | (string-to-int (match-string 4 gud-marker-acc))) | |
| 2094 | ||
| 2095 | ;; Append any text before the marker to the output we're going | |
| 2096 | ;; to return - we don't include the marker in this text. | |
| 2097 | output (concat output | |
| 2098 | (substring gud-marker-acc 0 (match-beginning 0))) | |
| 2099 | ||
| 2100 | ;; Set the accumulator to the remaining text. | |
| 2101 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) | |
| 2102 | ||
| 2103 | ;; Does the remaining text look like it might end with the | |
| 2104 | ;; beginning of another marker? If it does, then keep it in | |
| 2105 | ;; gud-marker-acc until we receive the rest of it. Since we | |
| 2106 | ;; know the full marker regexp above failed, it's pretty simple to | |
| 2107 | ;; test for marker starts. | |
| 2108 | (if (string-match "\032.*\\'" gud-marker-acc) | |
| 2109 | (progn | |
| 2110 | ;; Everything before the potential marker start can be output. | |
| 2111 | (setq output (concat output (substring gud-marker-acc | |
| 2112 | 0 (match-beginning 0)))) | |
| 2113 | ||
| 2114 | ;; Everything after, we save, to combine with later input. | |
| 2115 | (setq gud-marker-acc | |
| 2116 | (substring gud-marker-acc (match-beginning 0)))) | |
| 2117 | ||
| 2118 | (setq output (concat output gud-marker-acc) | |
| 2119 | gud-marker-acc "")) | |
| 2120 | ||
| 2121 | output)) | |
| 2122 | ||
| 2123 | (defcustom gud-bashdb-command-name "bash --debugger" | |
| 2124 | "File name for executing bash debugger." | |
| 2125 | :type 'string | |
| 2126 | :group 'gud) | |
| 2127 | ||
| 2128 | ;;;###autoload | |
| 2129 | (defun bashdb (command-line) | |
| 2130 | "Run bashdb on program FILE in buffer *gud-FILE*. | |
| 2131 | The directory containing FILE becomes the initial working directory | |
| 2132 | and source-file directory for your debugger." | |
| 2133 | (interactive | |
| 2134 | (list (read-from-minibuffer "Run bashdb (like this): " | |
| 2135 | (if (consp gud-bashdb-history) | |
| 2136 | (car gud-bashdb-history) | |
| 2137 | (concat gud-bashdb-command-name | |
| 2138 | " ")) | |
| 2139 | gud-minibuffer-local-map nil | |
| 2140 | '(gud-bashdb-history . 1)))) | |
| 2141 | ||
| 2142 | (gud-common-init command-line nil 'gud-bashdb-marker-filter) | |
| 2143 | ||
| 2144 | (set (make-local-variable 'gud-minor-mode) 'bashdb) | |
| 2145 | ||
| 2146 | (gud-def gud-break "break %l" "\C-b" "Set breakpoint at current line.") | |
| 2147 | (gud-def gud-tbreak "tbreak %l" "\C-t" "Set temporary breakpoint at current line.") | |
| 2148 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") | |
| 2149 | (gud-def gud-step "step" "\C-s" "Step one source line with display.") | |
| 2150 | (gud-def gud-next "next" "\C-n" "Step one line (skip functions).") | |
| 2151 | (gud-def gud-cont "continue" "\C-r" "Continue with display.") | |
| 2152 | (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
| 2153 | (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") | |
| 2154 | (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
| 2155 | (gud-def gud-print "x %e" "\C-p" "Evaluate BASH expression at point.") | |
| 2156 | ||
| 2157 | ;; Is this right? | |
| 2158 | (gud-def gud-statement "eval %e" "\C-e" "Execute BASH statement at point.") | |
| 2159 | ||
| 2160 | (setq comint-prompt-regexp "^bashdb<+(*[0-9]+)*>+ ") | |
| 2161 | (setq paragraph-start comint-prompt-regexp) | |
| 2162 | (run-hooks 'bashdb-mode-hook) | |
| 2163 | ) | |
| 2164 | ||
| 2165 | ;; | |
| 2166 | ;; End of debugger-specific information | |
| 2167 | ;; | |
| 2168 | ||
| 2169 | \f | |
| 2170 | ;; When we send a command to the debugger via gud-call, it's annoying | |
| 2171 | ;; to see the command and the new prompt inserted into the debugger's | |
| 2172 | ;; buffer; we have other ways of knowing the command has completed. | |
| 2173 | ;; | |
| 2174 | ;; If the buffer looks like this: | |
| 2175 | ;; -------------------- | |
| 2176 | ;; (gdb) set args foo bar | |
| 2177 | ;; (gdb) -!- | |
| 2178 | ;; -------------------- | |
| 2179 | ;; (the -!- marks the location of point), and we type `C-x SPC' in a | |
| 2180 | ;; source file to set a breakpoint, we want the buffer to end up like | |
| 2181 | ;; this: | |
| 2182 | ;; -------------------- | |
| 2183 | ;; (gdb) set args foo bar | |
| 2184 | ;; Breakpoint 1 at 0x92: file make-docfile.c, line 49. | |
| 2185 | ;; (gdb) -!- | |
| 2186 | ;; -------------------- | |
| 2187 | ;; Essentially, the old prompt is deleted, and the command's output | |
| 2188 | ;; and the new prompt take its place. | |
| 2189 | ;; | |
| 2190 | ;; Not echoing the command is easy enough; you send it directly using | |
| 2191 | ;; process-send-string, and it never enters the buffer. However, | |
| 2192 | ;; getting rid of the old prompt is trickier; you don't want to do it | |
| 2193 | ;; when you send the command, since that will result in an annoying | |
| 2194 | ;; flicker as the prompt is deleted, redisplay occurs while Emacs | |
| 2195 | ;; waits for a response from the debugger, and the new prompt is | |
| 2196 | ;; inserted. Instead, we'll wait until we actually get some output | |
| 2197 | ;; from the subprocess before we delete the prompt. If the command | |
| 2198 | ;; produced no output other than a new prompt, that prompt will most | |
| 2199 | ;; likely be in the first chunk of output received, so we will delete | |
| 2200 | ;; the prompt and then replace it with an identical one. If the | |
| 2201 | ;; command produces output, the prompt is moving anyway, so the | |
| 2202 | ;; flicker won't be annoying. | |
| 2203 | ;; | |
| 2204 | ;; So - when we want to delete the prompt upon receipt of the next | |
| 2205 | ;; chunk of debugger output, we position gud-delete-prompt-marker at | |
| 2206 | ;; the start of the prompt; the process filter will notice this, and | |
| 2207 | ;; delete all text between it and the process output marker. If | |
| 2208 | ;; gud-delete-prompt-marker points nowhere, we leave the current | |
| 2209 | ;; prompt alone. | |
| 2210 | (defvar gud-delete-prompt-marker nil) | |
| 2211 | ||
| 2212 | \f | |
| 2213 | (put 'gud-mode 'mode-class 'special) | |
| 2214 | ||
| 2215 | (define-derived-mode gud-mode comint-mode "Debugger" | |
| 2216 | "Major mode for interacting with an inferior debugger process. | |
| 2217 | ||
| 2218 | You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx, | |
| 2219 | M-x perldb, M-x xdb, or M-x jdb. Each entry point finishes by executing a | |
| 2220 | hook; `gdb-mode-hook', `sdb-mode-hook', `dbx-mode-hook', | |
| 2221 | `perldb-mode-hook', `xdb-mode-hook', or `jdb-mode-hook' respectively. | |
| 2222 | ||
| 2223 | After startup, the following commands are available in both the GUD | |
| 2224 | interaction buffer and any source buffer GUD visits due to a breakpoint stop | |
| 2225 | or step operation: | |
| 2226 | ||
| 2227 | \\[gud-break] sets a breakpoint at the current file and line. In the | |
| 2228 | GUD buffer, the current file and line are those of the last breakpoint or | |
| 2229 | step. In a source buffer, they are the buffer's file and current line. | |
| 2230 | ||
| 2231 | \\[gud-remove] removes breakpoints on the current file and line. | |
| 2232 | ||
| 2233 | \\[gud-refresh] displays in the source window the last line referred to | |
| 2234 | in the gud buffer. | |
| 2235 | ||
| 2236 | \\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line, | |
| 2237 | step-one-line (not entering function calls), and step-one-instruction | |
| 2238 | and then update the source window with the current file and position. | |
| 2239 | \\[gud-cont] continues execution. | |
| 2240 | ||
| 2241 | \\[gud-print] tries to find the largest C lvalue or function-call expression | |
| 2242 | around point, and sends it to the debugger for value display. | |
| 2243 | ||
| 2244 | The above commands are common to all supported debuggers except xdb which | |
| 2245 | does not support stepping instructions. | |
| 2246 | ||
| 2247 | Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break], | |
| 2248 | except that the breakpoint is temporary; that is, it is removed when | |
| 2249 | execution stops on it. | |
| 2250 | ||
| 2251 | Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack | |
| 2252 | frame. \\[gud-down] drops back down through one. | |
| 2253 | ||
| 2254 | If you are using gdb or xdb, \\[gud-finish] runs execution to the return from | |
| 2255 | the current function and stops. | |
| 2256 | ||
| 2257 | All the keystrokes above are accessible in the GUD buffer | |
| 2258 | with the prefix C-c, and in all buffers through the prefix C-x C-a. | |
| 2259 | ||
| 2260 | All pre-defined functions for which the concept make sense repeat | |
| 2261 | themselves the appropriate number of times if you give a prefix | |
| 2262 | argument. | |
| 2263 | ||
| 2264 | You may use the `gud-def' macro in the initialization hook to define other | |
| 2265 | commands. | |
| 2266 | ||
| 2267 | Other commands for interacting with the debugger process are inherited from | |
| 2268 | comint mode, which see." | |
| 2269 | (setq mode-line-process '(":%s")) | |
| 2270 | (define-key (current-local-map) "\C-c\C-l" 'gud-refresh) | |
| 2271 | (set (make-local-variable 'gud-last-frame) nil) | |
| 2272 | (set (make-local-variable 'tool-bar-map) gud-tool-bar-map) | |
| 2273 | (make-local-variable 'comint-prompt-regexp) | |
| 2274 | ;; Don't put repeated commands in command history many times. | |
| 2275 | (set (make-local-variable 'comint-input-ignoredups) t) | |
| 2276 | (make-local-variable 'paragraph-start) | |
| 2277 | (set (make-local-variable 'gud-delete-prompt-marker) (make-marker))) | |
| 2278 | ||
| 2279 | ;; Cause our buffers to be displayed, by default, | |
| 2280 | ;; in the selected window. | |
| 2281 | ;;;###autoload (add-hook 'same-window-regexps "\\*gud-.*\\*\\(\\|<[0-9]+>\\)") | |
| 2282 | ||
| 2283 | (defcustom gud-chdir-before-run t | |
| 2284 | "Non-nil if GUD should `cd' to the debugged executable." | |
| 2285 | :group 'gud | |
| 2286 | :type 'boolean) | |
| 2287 | ||
| 2288 | (defvar gud-target-name "--unknown--" | |
| 2289 | "The apparent name of the program being debugged in a gud buffer.") | |
| 2290 | ||
| 2291 | ;; Perform initializations common to all debuggers. | |
| 2292 | ;; The first arg is the specified command line, | |
| 2293 | ;; which starts with the program to debug. | |
| 2294 | ;; The other three args specify the values to use | |
| 2295 | ;; for local variables in the debugger buffer. | |
| 2296 | (defun gud-common-init (command-line massage-args marker-filter | |
| 2297 | &optional find-file) | |
| 2298 | (let* ((words (split-string command-line)) | |
| 2299 | (program (car words)) | |
| 2300 | (dir default-directory) | |
| 2301 | ;; Extract the file name from WORDS | |
| 2302 | ;; and put t in its place. | |
| 2303 | ;; Later on we will put the modified file name arg back there. | |
| 2304 | (file-word (let ((w (cdr words))) | |
| 2305 | (while (and w (= ?- (aref (car w) 0))) | |
| 2306 | (setq w (cdr w))) | |
| 2307 | (and w | |
| 2308 | (prog1 (car w) | |
| 2309 | (setcar w t))))) | |
| 2310 | (file-subst | |
| 2311 | (and file-word (substitute-in-file-name file-word))) | |
| 2312 | (args (cdr words)) | |
| 2313 | ;; If a directory was specified, expand the file name. | |
| 2314 | ;; Otherwise, don't expand it, so GDB can use the PATH. | |
| 2315 | ;; A file name without directory is literally valid | |
| 2316 | ;; only if the file exists in ., and in that case, | |
| 2317 | ;; omitting the expansion here has no visible effect. | |
| 2318 | (file (and file-word | |
| 2319 | (if (file-name-directory file-subst) | |
| 2320 | (expand-file-name file-subst) | |
| 2321 | file-subst))) | |
| 2322 | (filepart (and file-word (concat "-" (file-name-nondirectory file))))) | |
| 2323 | (pop-to-buffer (concat "*gud" filepart "*")) | |
| 2324 | ;; Set the dir, in case the buffer already existed with a different dir. | |
| 2325 | (setq default-directory dir) | |
| 2326 | ;; Set default-directory to the file's directory. | |
| 2327 | (and file-word | |
| 2328 | gud-chdir-before-run | |
| 2329 | ;; Don't set default-directory if no directory was specified. | |
| 2330 | ;; In that case, either the file is found in the current directory, | |
| 2331 | ;; in which case this setq is a no-op, | |
| 2332 | ;; or it is found by searching PATH, | |
| 2333 | ;; in which case we don't know what directory it was found in. | |
| 2334 | (file-name-directory file) | |
| 2335 | (setq default-directory (file-name-directory file))) | |
| 2336 | (or (bolp) (newline)) | |
| 2337 | (insert "Current directory is " default-directory "\n") | |
| 2338 | ;; Put the substituted and expanded file name back in its place. | |
| 2339 | (let ((w args)) | |
| 2340 | (while (and w (not (eq (car w) t))) | |
| 2341 | (setq w (cdr w))) | |
| 2342 | (if w | |
| 2343 | (setcar w file))) | |
| 2344 | (apply 'make-comint (concat "gud" filepart) program nil | |
| 2345 | (if massage-args (funcall massage-args file args) args)) | |
| 2346 | ;; Since comint clobbered the mode, we don't set it until now. | |
| 2347 | (gud-mode) | |
| 2348 | (set (make-local-variable 'gud-target-name) | |
| 2349 | (and file-word (file-name-nondirectory file)))) | |
| 2350 | (set (make-local-variable 'gud-marker-filter) marker-filter) | |
| 2351 | (if find-file (set (make-local-variable 'gud-find-file) find-file)) | |
| 2352 | (setq gud-running nil) | |
| 2353 | (setq gud-last-last-frame nil) | |
| 2354 | ||
| 2355 | (set-process-filter (get-buffer-process (current-buffer)) 'gud-filter) | |
| 2356 | (set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel) | |
| 2357 | (gud-set-buffer)) | |
| 2358 | ||
| 2359 | (defun gud-set-buffer () | |
| 2360 | (when (eq major-mode 'gud-mode) | |
| 2361 | (setq gud-comint-buffer (current-buffer)))) | |
| 2362 | ||
| 2363 | (defvar gud-filter-defer-flag nil | |
| 2364 | "Non-nil means don't process anything from the debugger right now. | |
| 2365 | It is saved for when this flag is not set.") | |
| 2366 | ||
| 2367 | (defvar gud-filter-pending-text nil | |
| 2368 | "Non-nil means this is text that has been saved for later in `gud-filter'.") | |
| 2369 | ||
| 2370 | ;; These functions are responsible for inserting output from your debugger | |
| 2371 | ;; into the buffer. The hard work is done by the method that is | |
| 2372 | ;; the value of gud-marker-filter. | |
| 2373 | ||
| 2374 | (defun gud-filter (proc string) | |
| 2375 | ;; Here's where the actual buffer insertion is done | |
| 2376 | (let (output process-window) | |
| 2377 | (if (buffer-name (process-buffer proc)) | |
| 2378 | (if gud-filter-defer-flag | |
| 2379 | ;; If we can't process any text now, | |
| 2380 | ;; save it for later. | |
| 2381 | (setq gud-filter-pending-text | |
| 2382 | (concat (or gud-filter-pending-text "") string)) | |
| 2383 | ||
| 2384 | ;; If we have to ask a question during the processing, | |
| 2385 | ;; defer any additional text that comes from the debugger | |
| 2386 | ;; during that time. | |
| 2387 | (let ((gud-filter-defer-flag t)) | |
| 2388 | ;; Process now any text we previously saved up. | |
| 2389 | (if gud-filter-pending-text | |
| 2390 | (setq string (concat gud-filter-pending-text string) | |
| 2391 | gud-filter-pending-text nil)) | |
| 2392 | ||
| 2393 | (with-current-buffer (process-buffer proc) | |
| 2394 | ;; If we have been so requested, delete the debugger prompt. | |
| 2395 | (save-restriction | |
| 2396 | (widen) | |
| 2397 | (if (marker-buffer gud-delete-prompt-marker) | |
| 2398 | (progn | |
| 2399 | (delete-region (process-mark proc) | |
| 2400 | gud-delete-prompt-marker) | |
| 2401 | (set-marker gud-delete-prompt-marker nil))) | |
| 2402 | ;; Save the process output, checking for source file markers. | |
| 2403 | (setq output (gud-marker-filter string)) | |
| 2404 | ;; Check for a filename-and-line number. | |
| 2405 | ;; Don't display the specified file | |
| 2406 | ;; unless (1) point is at or after the position where output appears | |
| 2407 | ;; and (2) this buffer is on the screen. | |
| 2408 | (setq process-window | |
| 2409 | (and gud-last-frame | |
| 2410 | (>= (point) (process-mark proc)) | |
| 2411 | (get-buffer-window (current-buffer))))) | |
| 2412 | ||
| 2413 | ;; Let the comint filter do the actual insertion. | |
| 2414 | ;; That lets us inherit various comint features. | |
| 2415 | (comint-output-filter proc output)) | |
| 2416 | ||
| 2417 | ;; Put the arrow on the source line. | |
| 2418 | ;; This must be outside of the save-excursion | |
| 2419 | ;; in case the source file is our current buffer. | |
| 2420 | (if process-window | |
| 2421 | (save-selected-window | |
| 2422 | (select-window process-window) | |
| 2423 | (gud-display-frame)) | |
| 2424 | ;; We have to be in the proper buffer, (process-buffer proc), | |
| 2425 | ;; but not in a save-excursion, because that would restore point. | |
| 2426 | (let ((old-buf (current-buffer))) | |
| 2427 | (set-buffer (process-buffer proc)) | |
| 2428 | (unwind-protect | |
| 2429 | (gud-display-frame) | |
| 2430 | (set-buffer old-buf))))) | |
| 2431 | ||
| 2432 | ;; If we deferred text that arrived during this processing, | |
| 2433 | ;; handle it now. | |
| 2434 | (if gud-filter-pending-text | |
| 2435 | (gud-filter proc "")))))) | |
| 2436 | ||
| 2437 | (defvar gud-minor-mode-type nil) | |
| 2438 | ||
| 2439 | (defun gud-sentinel (proc msg) | |
| 2440 | (cond ((null (buffer-name (process-buffer proc))) | |
| 2441 | ;; buffer killed | |
| 2442 | ;; Stop displaying an arrow in a source file. | |
| 2443 | (setq overlay-arrow-position nil) | |
| 2444 | (set-process-buffer proc nil) | |
| 2445 | (if (eq gud-minor-mode-type 'gdba) | |
| 2446 | (gdb-reset) | |
| 2447 | (gud-reset))) | |
| 2448 | ((memq (process-status proc) '(signal exit)) | |
| 2449 | ;; Stop displaying an arrow in a source file. | |
| 2450 | (setq overlay-arrow-position nil) | |
| 2451 | (with-current-buffer gud-comint-buffer | |
| 2452 | (if (eq gud-minor-mode 'gdba) | |
| 2453 | (gdb-reset) | |
| 2454 | (gud-reset))) | |
| 2455 | (let* ((obuf (current-buffer))) | |
| 2456 | ;; save-excursion isn't the right thing if | |
| 2457 | ;; process-buffer is current-buffer | |
| 2458 | (unwind-protect | |
| 2459 | (progn | |
| 2460 | ;; Write something in *compilation* and hack its mode line, | |
| 2461 | (set-buffer (process-buffer proc)) | |
| 2462 | ;; Fix the mode line. | |
| 2463 | (setq mode-line-process | |
| 2464 | (concat ":" | |
| 2465 | (symbol-name (process-status proc)))) | |
| 2466 | (force-mode-line-update) | |
| 2467 | (if (eobp) | |
| 2468 | (insert ?\n mode-name " " msg) | |
| 2469 | (save-excursion | |
| 2470 | (goto-char (point-max)) | |
| 2471 | (insert ?\n mode-name " " msg))) | |
| 2472 | ;; If buffer and mode line will show that the process | |
| 2473 | ;; is dead, we can delete it now. Otherwise it | |
| 2474 | ;; will stay around until M-x list-processes. | |
| 2475 | (delete-process proc)) | |
| 2476 | ;; Restore old buffer, but don't restore old point | |
| 2477 | ;; if obuf is the gud buffer. | |
| 2478 | (set-buffer obuf)))))) | |
| 2479 | ||
| 2480 | (defun gud-kill-buffer-hook () | |
| 2481 | (if gud-minor-mode | |
| 2482 | (setq gud-minor-mode-type gud-minor-mode))) | |
| 2483 | ||
| 2484 | (add-hook 'kill-buffer-hook 'gud-kill-buffer-hook) | |
| 2485 | ||
| 2486 | (defun gud-reset () | |
| 2487 | (dolist (buffer (buffer-list)) | |
| 2488 | (if (not (eq buffer gud-comint-buffer)) | |
| 2489 | (save-excursion | |
| 2490 | (set-buffer buffer) | |
| 2491 | (when gud-minor-mode | |
| 2492 | (setq gud-minor-mode nil) | |
| 2493 | (kill-local-variable 'tool-bar-map)))))) | |
| 2494 | ||
| 2495 | (defun gud-display-frame () | |
| 2496 | "Find and obey the last filename-and-line marker from the debugger. | |
| 2497 | Obeying it means displaying in another window the specified file and line." | |
| 2498 | (interactive) | |
| 2499 | (when gud-last-frame | |
| 2500 | (gud-set-buffer) | |
| 2501 | (gud-display-line (car gud-last-frame) (cdr gud-last-frame)) | |
| 2502 | (setq gud-last-last-frame gud-last-frame | |
| 2503 | gud-last-frame nil))) | |
| 2504 | ||
| 2505 | ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen | |
| 2506 | ;; and that its line LINE is visible. | |
| 2507 | ;; Put the overlay-arrow on the line LINE in that buffer. | |
| 2508 | ;; Most of the trickiness in here comes from wanting to preserve the current | |
| 2509 | ;; region-restriction if that's possible. We use an explicit display-buffer | |
| 2510 | ;; to get around the fact that this is called inside a save-excursion. | |
| 2511 | ||
| 2512 | (defun gud-display-line (true-file line) | |
| 2513 | (let* ((last-nonmenu-event t) ; Prevent use of dialog box for questions. | |
| 2514 | (buffer | |
| 2515 | (with-current-buffer gud-comint-buffer | |
| 2516 | (gud-find-file true-file))) | |
| 2517 | (window (and buffer (or (get-buffer-window buffer) | |
| 2518 | (if (eq gud-minor-mode 'gdba) | |
| 2519 | (gdb-display-source-buffer buffer) | |
| 2520 | (display-buffer buffer))))) | |
| 2521 | (pos)) | |
| 2522 | (if buffer | |
| 2523 | (progn | |
| 2524 | (with-current-buffer buffer | |
| 2525 | (if (not (or (verify-visited-file-modtime buffer) gud-keep-buffer)) | |
| 2526 | (progn | |
| 2527 | (if | |
| 2528 | (yes-or-no-p | |
| 2529 | (format "File %s changed on disk. Reread from disk? " | |
| 2530 | (buffer-name))) | |
| 2531 | (revert-buffer t t) | |
| 2532 | (setq gud-keep-buffer t)))) | |
| 2533 | (save-restriction | |
| 2534 | (widen) | |
| 2535 | (goto-line line) | |
| 2536 | (setq pos (point)) | |
| 2537 | (setq overlay-arrow-string "=>") | |
| 2538 | (or overlay-arrow-position | |
| 2539 | (setq overlay-arrow-position (make-marker))) | |
| 2540 | (set-marker overlay-arrow-position (point) (current-buffer))) | |
| 2541 | (cond ((or (< pos (point-min)) (> pos (point-max))) | |
| 2542 | (widen) | |
| 2543 | (goto-char pos)))) | |
| 2544 | (set-window-point window overlay-arrow-position))))) | |
| 2545 | ||
| 2546 | ;; The gud-call function must do the right thing whether its invoking | |
| 2547 | ;; keystroke is from the GUD buffer itself (via major-mode binding) | |
| 2548 | ;; or a C buffer. In the former case, we want to supply data from | |
| 2549 | ;; gud-last-frame. Here's how we do it: | |
| 2550 | ||
| 2551 | (defun gud-format-command (str arg) | |
| 2552 | (let ((insource (not (eq (current-buffer) gud-comint-buffer))) | |
| 2553 | (frame (or gud-last-frame gud-last-last-frame)) | |
| 2554 | result) | |
| 2555 | (while (and str (string-match "\\([^%]*\\)%\\([adeflpc]\\)" str)) | |
| 2556 | (let ((key (string-to-char (match-string 2 str))) | |
| 2557 | subst) | |
| 2558 | (cond | |
| 2559 | ((eq key ?f) | |
| 2560 | (setq subst (file-name-nondirectory (if insource | |
| 2561 | (buffer-file-name) | |
| 2562 | (car frame))))) | |
| 2563 | ((eq key ?F) | |
| 2564 | (setq subst (file-name-sans-extension | |
| 2565 | (file-name-nondirectory (if insource | |
| 2566 | (buffer-file-name) | |
| 2567 | (car frame)))))) | |
| 2568 | ((eq key ?d) | |
| 2569 | (setq subst (file-name-directory (if insource | |
| 2570 | (buffer-file-name) | |
| 2571 | (car frame))))) | |
| 2572 | ((eq key ?l) | |
| 2573 | (setq subst (int-to-string | |
| 2574 | (if insource | |
| 2575 | (save-restriction | |
| 2576 | (widen) | |
| 2577 | (+ (count-lines (point-min) (point)) | |
| 2578 | (if (bolp) 1 0))) | |
| 2579 | (cdr frame))))) | |
| 2580 | ((eq key ?e) | |
| 2581 | (setq subst (gud-find-c-expr))) | |
| 2582 | ((eq key ?a) | |
| 2583 | (setq subst (gud-read-address))) | |
| 2584 | ((eq key ?c) | |
| 2585 | (setq subst | |
| 2586 | (gud-find-class | |
| 2587 | (if insource | |
| 2588 | (buffer-file-name) | |
| 2589 | (car frame)) | |
| 2590 | (if insource | |
| 2591 | (save-restriction | |
| 2592 | (widen) | |
| 2593 | (+ (count-lines (point-min) (point)) | |
| 2594 | (if (bolp) 1 0))) | |
| 2595 | (cdr frame))))) | |
| 2596 | ((eq key ?p) | |
| 2597 | (setq subst (if arg (int-to-string arg))))) | |
| 2598 | (setq result (concat result (match-string 1 str) subst))) | |
| 2599 | (setq str (substring str (match-end 2)))) | |
| 2600 | ;; There might be text left in STR when the loop ends. | |
| 2601 | (concat result str))) | |
| 2602 | ||
| 2603 | (defun gud-read-address () | |
| 2604 | "Return a string containing the core-address found in the buffer at point." | |
| 2605 | (save-match-data | |
| 2606 | (save-excursion | |
| 2607 | (let ((pt (point)) found begin) | |
| 2608 | (setq found (if (search-backward "0x" (- pt 7) t) (point))) | |
| 2609 | (cond | |
| 2610 | (found (forward-char 2) | |
| 2611 | (buffer-substring found | |
| 2612 | (progn (re-search-forward "[^0-9a-f]") | |
| 2613 | (forward-char -1) | |
| 2614 | (point)))) | |
| 2615 | (t (setq begin (progn (re-search-backward "[^0-9]") | |
| 2616 | (forward-char 1) | |
| 2617 | (point))) | |
| 2618 | (forward-char 1) | |
| 2619 | (re-search-forward "[^0-9]") | |
| 2620 | (forward-char -1) | |
| 2621 | (buffer-substring begin (point)))))))) | |
| 2622 | ||
| 2623 | (defun gud-call (fmt &optional arg) | |
| 2624 | (let ((msg (gud-format-command fmt arg))) | |
| 2625 | (message "Command: %s" msg) | |
| 2626 | (sit-for 0) | |
| 2627 | (gud-basic-call msg))) | |
| 2628 | ||
| 2629 | (defun gud-basic-call (command) | |
| 2630 | "Invoke the debugger COMMAND displaying source in other window." | |
| 2631 | (interactive) | |
| 2632 | (gud-set-buffer) | |
| 2633 | (let ((proc (get-buffer-process gud-comint-buffer))) | |
| 2634 | (or proc (error "Current buffer has no process")) | |
| 2635 | ;; Arrange for the current prompt to get deleted. | |
| 2636 | (save-excursion | |
| 2637 | (set-buffer gud-comint-buffer) | |
| 2638 | (save-restriction | |
| 2639 | (widen) | |
| 2640 | (goto-char (process-mark proc)) | |
| 2641 | (forward-line 0) | |
| 2642 | (if (looking-at comint-prompt-regexp) | |
| 2643 | (set-marker gud-delete-prompt-marker (point))) | |
| 2644 | (if (eq gud-minor-mode 'gdba) | |
| 2645 | (apply comint-input-sender (list proc command)) | |
| 2646 | (process-send-string proc (concat command "\n"))))))) | |
| 2647 | ||
| 2648 | (defun gud-refresh (&optional arg) | |
| 2649 | "Fix up a possibly garbled display, and redraw the arrow." | |
| 2650 | (interactive "P") | |
| 2651 | (or gud-last-frame (setq gud-last-frame gud-last-last-frame)) | |
| 2652 | (gud-display-frame) | |
| 2653 | (recenter arg)) | |
| 2654 | \f | |
| 2655 | ;; Code for parsing expressions out of C code. The single entry point is | |
| 2656 | ;; find-c-expr, which tries to return an lvalue expression from around point. | |
| 2657 | ;; | |
| 2658 | ;; The rest of this file is a hacked version of gdbsrc.el by | |
| 2659 | ;; Debby Ayers <ayers@asc.slb.com>, | |
| 2660 | ;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx. | |
| 2661 | ||
| 2662 | (defun gud-find-c-expr () | |
| 2663 | "Returns the C expr that surrounds point." | |
| 2664 | (interactive) | |
| 2665 | (save-excursion | |
| 2666 | (let (p expr test-expr) | |
| 2667 | (setq p (point)) | |
| 2668 | (setq expr (gud-innermost-expr)) | |
| 2669 | (setq test-expr (gud-prev-expr)) | |
| 2670 | (while (and test-expr (gud-expr-compound test-expr expr)) | |
| 2671 | (let ((prev-expr expr)) | |
| 2672 | (setq expr (cons (car test-expr) (cdr expr))) | |
| 2673 | (goto-char (car expr)) | |
| 2674 | (setq test-expr (gud-prev-expr)) | |
| 2675 | ;; If we just pasted on the condition of an if or while, | |
| 2676 | ;; throw it away again. | |
| 2677 | (if (member (buffer-substring (car test-expr) (cdr test-expr)) | |
| 2678 | '("if" "while" "for")) | |
| 2679 | (setq test-expr nil | |
| 2680 | expr prev-expr)))) | |
| 2681 | (goto-char p) | |
| 2682 | (setq test-expr (gud-next-expr)) | |
| 2683 | (while (gud-expr-compound expr test-expr) | |
| 2684 | (setq expr (cons (car expr) (cdr test-expr))) | |
| 2685 | (setq test-expr (gud-next-expr))) | |
| 2686 | (buffer-substring (car expr) (cdr expr))))) | |
| 2687 | ||
| 2688 | (defun gud-innermost-expr () | |
| 2689 | "Returns the smallest expr that point is in; move point to beginning of it. | |
| 2690 | The expr is represented as a cons cell, where the car specifies the point in | |
| 2691 | the current buffer that marks the beginning of the expr and the cdr specifies | |
| 2692 | the character after the end of the expr." | |
| 2693 | (let ((p (point)) begin end) | |
| 2694 | (gud-backward-sexp) | |
| 2695 | (setq begin (point)) | |
| 2696 | (gud-forward-sexp) | |
| 2697 | (setq end (point)) | |
| 2698 | (if (>= p end) | |
| 2699 | (progn | |
| 2700 | (setq begin p) | |
| 2701 | (goto-char p) | |
| 2702 | (gud-forward-sexp) | |
| 2703 | (setq end (point))) | |
| 2704 | ) | |
| 2705 | (goto-char begin) | |
| 2706 | (cons begin end))) | |
| 2707 | ||
| 2708 | (defun gud-backward-sexp () | |
| 2709 | "Version of `backward-sexp' that catches errors." | |
| 2710 | (condition-case nil | |
| 2711 | (backward-sexp) | |
| 2712 | (error t))) | |
| 2713 | ||
| 2714 | (defun gud-forward-sexp () | |
| 2715 | "Version of `forward-sexp' that catches errors." | |
| 2716 | (condition-case nil | |
| 2717 | (forward-sexp) | |
| 2718 | (error t))) | |
| 2719 | ||
| 2720 | (defun gud-prev-expr () | |
| 2721 | "Returns the previous expr, point is set to beginning of that expr. | |
| 2722 | The expr is represented as a cons cell, where the car specifies the point in | |
| 2723 | the current buffer that marks the beginning of the expr and the cdr specifies | |
| 2724 | the character after the end of the expr" | |
| 2725 | (let ((begin) (end)) | |
| 2726 | (gud-backward-sexp) | |
| 2727 | (setq begin (point)) | |
| 2728 | (gud-forward-sexp) | |
| 2729 | (setq end (point)) | |
| 2730 | (goto-char begin) | |
| 2731 | (cons begin end))) | |
| 2732 | ||
| 2733 | (defun gud-next-expr () | |
| 2734 | "Returns the following expr, point is set to beginning of that expr. | |
| 2735 | The expr is represented as a cons cell, where the car specifies the point in | |
| 2736 | the current buffer that marks the beginning of the expr and the cdr specifies | |
| 2737 | the character after the end of the expr." | |
| 2738 | (let ((begin) (end)) | |
| 2739 | (gud-forward-sexp) | |
| 2740 | (gud-forward-sexp) | |
| 2741 | (setq end (point)) | |
| 2742 | (gud-backward-sexp) | |
| 2743 | (setq begin (point)) | |
| 2744 | (cons begin end))) | |
| 2745 | ||
| 2746 | (defun gud-expr-compound-sep (span-start span-end) | |
| 2747 | "Scan from SPAN-START to SPAN-END for punctuation characters. | |
| 2748 | If `->' is found, return `?.'. If `.' is found, return `?.'. | |
| 2749 | If any other punctuation is found, return `??'. | |
| 2750 | If no punctuation is found, return `? '." | |
| 2751 | (let ((result ?\ ) | |
| 2752 | (syntax)) | |
| 2753 | (while (< span-start span-end) | |
| 2754 | (setq syntax (char-syntax (char-after span-start))) | |
| 2755 | (cond | |
| 2756 | ((= syntax ?\ ) t) | |
| 2757 | ((= syntax ?.) (setq syntax (char-after span-start)) | |
| 2758 | (cond | |
| 2759 | ((= syntax ?.) (setq result ?.)) | |
| 2760 | ((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>)) | |
| 2761 | (setq result ?.) | |
| 2762 | (setq span-start (+ span-start 1))) | |
| 2763 | (t (setq span-start span-end) | |
| 2764 | (setq result ??))))) | |
| 2765 | (setq span-start (+ span-start 1))) | |
| 2766 | result)) | |
| 2767 | ||
| 2768 | (defun gud-expr-compound (first second) | |
| 2769 | "Non-nil if concatenating FIRST and SECOND makes a single C expression. | |
| 2770 | The two exprs are represented as a cons cells, where the car | |
| 2771 | specifies the point in the current buffer that marks the beginning of the | |
| 2772 | expr and the cdr specifies the character after the end of the expr. | |
| 2773 | Link exprs of the form: | |
| 2774 | Expr -> Expr | |
| 2775 | Expr . Expr | |
| 2776 | Expr (Expr) | |
| 2777 | Expr [Expr] | |
| 2778 | (Expr) Expr | |
| 2779 | [Expr] Expr" | |
| 2780 | (let ((span-start (cdr first)) | |
| 2781 | (span-end (car second)) | |
| 2782 | (syntax)) | |
| 2783 | (setq syntax (gud-expr-compound-sep span-start span-end)) | |
| 2784 | (cond | |
| 2785 | ((= (car first) (car second)) nil) | |
| 2786 | ((= (cdr first) (cdr second)) nil) | |
| 2787 | ((= syntax ?.) t) | |
| 2788 | ((= syntax ?\ ) | |
| 2789 | (setq span-start (char-after (- span-start 1))) | |
| 2790 | (setq span-end (char-after span-end)) | |
| 2791 | (cond | |
| 2792 | ((= span-start ?)) t) | |
| 2793 | ((= span-start ?]) t) | |
| 2794 | ((= span-end ?() t) | |
| 2795 | ((= span-end ?[) t) | |
| 2796 | (t nil))) | |
| 2797 | (t nil)))) | |
| 2798 | ||
| 2799 | (defun gud-find-class (f line) | |
| 2800 | "Find fully qualified class in file F at line LINE. | |
| 2801 | This function uses the `gud-jdb-classpath' (and optional | |
| 2802 | `gud-jdb-sourcepath') list(s) to derive a file | |
| 2803 | pathname relative to its classpath directory. The values in | |
| 2804 | `gud-jdb-classpath' are assumed to have been converted to absolute | |
| 2805 | pathname standards using file-truename. | |
| 2806 | If F is visited by a buffer and its mode is CC-mode(Java), | |
| 2807 | syntactic information of LINE is used to find the enclosing (nested) | |
| 2808 | class string which is appended to the top level | |
| 2809 | class of the file (using s to separate nested class ids)." | |
| 2810 | ;; Convert f to a standard representation and remove suffix | |
| 2811 | (if (and gud-jdb-use-classpath (or gud-jdb-classpath gud-jdb-sourcepath)) | |
| 2812 | (save-match-data | |
| 2813 | (let ((cplist (append gud-jdb-sourcepath gud-jdb-classpath)) | |
| 2814 | (fbuffer (get-file-buffer f)) | |
| 2815 | class-found) | |
| 2816 | (setq f (file-name-sans-extension (file-truename f))) | |
| 2817 | ;; Search through classpath list for an entry that is | |
| 2818 | ;; contained in f | |
| 2819 | (while (and cplist (not class-found)) | |
| 2820 | (if (string-match (car cplist) f) | |
| 2821 | (setq class-found | |
| 2822 | (mapconcat 'identity | |
| 2823 | (split-string | |
| 2824 | (substring f (+ (match-end 0) 1)) | |
| 2825 | "/") "."))) | |
| 2826 | (setq cplist (cdr cplist))) | |
| 2827 | ;; if f is visited by a java(cc-mode) buffer, walk up the | |
| 2828 | ;; syntactic information chain and collect any 'inclass | |
| 2829 | ;; symbols until 'topmost-intro is reached to find out if | |
| 2830 | ;; point is within a nested class | |
| 2831 | (if (and fbuffer (equal (symbol-file 'java-mode) "cc-mode")) | |
| 2832 | (save-excursion | |
| 2833 | (set-buffer fbuffer) | |
| 2834 | (let ((nclass) (syntax)) | |
| 2835 | ;; While the c-syntactic information does not start | |
| 2836 | ;; with the 'topmost-intro symbol, there may be | |
| 2837 | ;; nested classes... | |
| 2838 | (while (not (eq 'topmost-intro | |
| 2839 | (car (car (c-guess-basic-syntax))))) | |
| 2840 | ;; Check if the current position c-syntactic | |
| 2841 | ;; analysis has 'inclass | |
| 2842 | (setq syntax (c-guess-basic-syntax)) | |
| 2843 | (while | |
| 2844 | (and (not (eq 'inclass (car (car syntax)))) | |
| 2845 | (cdr syntax)) | |
| 2846 | (setq syntax (cdr syntax))) | |
| 2847 | (if (eq 'inclass (car (car syntax))) | |
| 2848 | (progn | |
| 2849 | (goto-char (cdr (car syntax))) | |
| 2850 | ;; Now we're at the beginning of a class | |
| 2851 | ;; definition. Find class name | |
| 2852 | (looking-at | |
| 2853 | "[A-Za-z0-9 \t\n]*?class[ \t\n]+\\([^ \t\n]+\\)") | |
| 2854 | (setq nclass | |
| 2855 | (append (list (match-string-no-properties 1)) | |
| 2856 | nclass))) | |
| 2857 | (setq syntax (c-guess-basic-syntax)) | |
| 2858 | (while (and (not (cdr (car syntax))) (cdr syntax)) | |
| 2859 | (setq syntax (cdr syntax))) | |
| 2860 | (goto-char (cdr (car syntax))) | |
| 2861 | )) | |
| 2862 | (string-match (concat (car nclass) "$") class-found) | |
| 2863 | (setq class-found | |
| 2864 | (replace-match (mapconcat 'identity nclass "$") | |
| 2865 | t t class-found))))) | |
| 2866 | (if (not class-found) | |
| 2867 | (message "gud-find-class: class for file %s not found!" f)) | |
| 2868 | class-found)) | |
| 2869 | ;; Not using classpath - try class/source association list | |
| 2870 | (let ((class-found (rassoc f gud-jdb-class-source-alist))) | |
| 2871 | (if class-found | |
| 2872 | (car class-found) | |
| 2873 | (message "gud-find-class: class for file %s not found in gud-jdb-class-source-alist!" f) | |
| 2874 | nil)))) | |
| 2875 | ||
| 2876 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 2877 | ;;; GDB script mode ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 2878 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| 2879 | ||
| 2880 | (defvar gdb-script-mode-syntax-table | |
| 2881 | (let ((st (make-syntax-table))) | |
| 2882 | (modify-syntax-entry ?' "\"" st) | |
| 2883 | (modify-syntax-entry ?# "<" st) | |
| 2884 | (modify-syntax-entry ?\n ">" st) | |
| 2885 | st)) | |
| 2886 | ||
| 2887 | (defvar gdb-script-font-lock-keywords | |
| 2888 | '(("^define\\s-+\\(\\w+\\)" (1 font-lock-function-name-face)) | |
| 2889 | ("^\\s-*\\([a-z]+\\)" (1 font-lock-keyword-face)))) | |
| 2890 | ||
| 2891 | (defvar gdb-script-font-lock-syntactic-keywords | |
| 2892 | '(("^document\\s-.*\\(\n\\)" (1 "< b")) | |
| 2893 | ;; It would be best to change the \n in front, but it's more difficult. | |
| 2894 | ("^en\\(d\\)\\>" (1 "> b")))) | |
| 2895 | ||
| 2896 | (defun gdb-script-font-lock-syntactic-face (state) | |
| 2897 | (cond | |
| 2898 | ((nth 3 state) font-lock-string-face) | |
| 2899 | ((nth 7 state) font-lock-doc-face) | |
| 2900 | (t font-lock-comment-face))) | |
| 2901 | ||
| 2902 | (defvar gdb-script-basic-indent 2) | |
| 2903 | ||
| 2904 | (defun gdb-script-skip-to-head () | |
| 2905 | "We're just in front of an `end' and we need to go to its head." | |
| 2906 | (while (and (re-search-backward "^\\s-*\\(\\(end\\)\\|define\\|document\\|if\\|while\\)\\>" nil 'move) | |
| 2907 | (match-end 2)) | |
| 2908 | (gdb-script-skip-to-head))) | |
| 2909 | ||
| 2910 | (defun gdb-script-calculate-indentation () | |
| 2911 | (cond | |
| 2912 | ((looking-at "end\\>") | |
| 2913 | (gdb-script-skip-to-head) | |
| 2914 | (current-indentation)) | |
| 2915 | ((looking-at "else\\>") | |
| 2916 | (while (and (re-search-backward "^\\s-*\\(if\\|\\(end\\)\\)\\>" nil 'move) | |
| 2917 | (match-end 2)) | |
| 2918 | (gdb-script-skip-to-head)) | |
| 2919 | (current-indentation)) | |
| 2920 | (t | |
| 2921 | (forward-comment (- (point-max))) | |
| 2922 | (forward-line 0) | |
| 2923 | (skip-chars-forward " \t") | |
| 2924 | (+ (current-indentation) | |
| 2925 | (if (looking-at "\\(if\\|while\\|define\\|else\\)\\>") | |
| 2926 | gdb-script-basic-indent 0))))) | |
| 2927 | ||
| 2928 | (defun gdb-script-indent-line () | |
| 2929 | "Indent current line of GDB script." | |
| 2930 | (interactive) | |
| 2931 | (if (and (eq (get-text-property (point) 'face) font-lock-doc-face) | |
| 2932 | (save-excursion | |
| 2933 | (forward-line 0) | |
| 2934 | (skip-chars-forward " \t") | |
| 2935 | (not (looking-at "end\\>")))) | |
| 2936 | 'noindent | |
| 2937 | (let* ((savep (point)) | |
| 2938 | (indent (condition-case nil | |
| 2939 | (save-excursion | |
| 2940 | (forward-line 0) | |
| 2941 | (skip-chars-forward " \t") | |
| 2942 | (if (>= (point) savep) (setq savep nil)) | |
| 2943 | (max (gdb-script-calculate-indentation) 0)) | |
| 2944 | (error 0)))) | |
| 2945 | (if savep | |
| 2946 | (save-excursion (indent-line-to indent)) | |
| 2947 | (indent-line-to indent))))) | |
| 2948 | ||
| 2949 | ;;;###autoload | |
| 2950 | (add-to-list 'auto-mode-alist '("/\\.gdbinit" . gdb-script-mode)) | |
| 2951 | ||
| 2952 | ;;;###autoload | |
| 2953 | (define-derived-mode gdb-script-mode nil "GDB-Script" | |
| 2954 | "Major mode for editing GDB scripts" | |
| 2955 | (set (make-local-variable 'comment-start) "#") | |
| 2956 | (set (make-local-variable 'comment-start-skip) "#+\\s-*") | |
| 2957 | (set (make-local-variable 'outline-regexp) "[ \t]") | |
| 2958 | (set (make-local-variable 'imenu-generic-expression) | |
| 2959 | '((nil "^define[ \t]+\\(\\w+\\)" 1))) | |
| 2960 | (set (make-local-variable 'indent-line-function) 'gdb-script-indent-line) | |
| 2961 | (set (make-local-variable 'font-lock-defaults) | |
| 2962 | '(gdb-script-font-lock-keywords nil nil ((?_ . "w")) nil | |
| 2963 | (font-lock-syntactic-keywords | |
| 2964 | . gdb-script-font-lock-syntactic-keywords) | |
| 2965 | (font-lock-syntactic-face-function | |
| 2966 | . gdb-script-font-lock-syntactic-face)))) | |
| 2967 | ||
| 2968 | (provide 'gud) | |
| 2969 | ||
| 2970 | ;;; gud.el ends here |