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d7af32300b
"gdb --annotate=3". (gud-gdb-marker-filter): Look out for annotations. (gdb-first-pre-prompt): New variable. Remove trailing white space.
3034 lines
113 KiB
EmacsLisp
3034 lines
113 KiB
EmacsLisp
;;; gud.el --- Grand Unified Debugger mode for running GDB and other debuggers
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;; Author: Eric S. Raymond <esr@snark.thyrsus.com>
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;; Maintainer: FSF
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;; Keywords: unix, tools
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;; Copyright (C) 1992,93,94,95,96,1998,2000,02,2003 Free Software Foundation, Inc.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; The ancestral gdb.el was by W. Schelter <wfs@rascal.ics.utexas.edu>
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;; It was later rewritten by rms. Some ideas were due to Masanobu.
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;; Grand Unification (sdb/dbx support) by Eric S. Raymond <esr@thyrsus.com>
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;; The overloading code was then rewritten by Barry Warsaw <bwarsaw@cen.com>,
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;; who also hacked the mode to use comint.el. Shane Hartman <shane@spr.com>
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;; added support for xdb (HPUX debugger). Rick Sladkey <jrs@world.std.com>
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;; wrote the GDB command completion code. Dave Love <d.love@dl.ac.uk>
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;; added the IRIX kluge, re-implemented the Mips-ish variant and added
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;; a menu. Brian D. Carlstrom <bdc@ai.mit.edu> combined the IRIX kluge with
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;; the gud-xdb-directories hack producing gud-dbx-directories. Derek L. Davies
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;; <ddavies@world.std.com> added support for jdb (Java debugger.)
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;;; Code:
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(require 'comint)
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(require 'etags)
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;; ======================================================================
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;; GUD commands must be visible in C buffers visited by GUD
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(defgroup gud nil
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"Grand Unified Debugger mode for gdb and other debuggers under Emacs.
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Supported debuggers include gdb, sdb, dbx, xdb, perldb, pdb (Python), jdb, and bash."
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:group 'unix
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:group 'tools)
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(defcustom gud-key-prefix "\C-x\C-a"
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"Prefix of all GUD commands valid in C buffers."
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:type 'string
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:group 'gud)
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(global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh)
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(define-key ctl-x-map " " 'gud-break) ;; backward compatibility hack
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(defvar gud-marker-filter nil)
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(put 'gud-marker-filter 'permanent-local t)
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(defvar gud-find-file nil)
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(put 'gud-find-file 'permanent-local t)
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(defun gud-marker-filter (&rest args)
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(apply gud-marker-filter args))
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(defvar gud-minor-mode nil)
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(put 'gud-minor-mode 'permanent-local t)
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(defvar gud-keep-buffer nil)
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(defun gud-symbol (sym &optional soft minor-mode)
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"Return the symbol used for SYM in MINOR-MODE.
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MINOR-MODE defaults to `gud-minor-mode.
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The symbol returned is `gud-<MINOR-MODE>-<SYM>'.
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If SOFT is non-nil, returns nil if the symbol doesn't already exist."
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(unless (or minor-mode gud-minor-mode) (error "Gud internal error"))
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(funcall (if soft 'intern-soft 'intern)
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(format "gud-%s-%s" (or minor-mode gud-minor-mode) sym)))
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(defun gud-val (sym &optional minor-mode)
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"Return the value of `gud-symbol' SYM. Default to nil."
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(let ((sym (gud-symbol sym t minor-mode)))
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(if (boundp sym) (symbol-value sym))))
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(defvar gud-running nil
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"Non-nil if debuggee is running.
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Used to grey out relevant toolbar icons.")
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(easy-mmode-defmap gud-menu-map
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'(([refresh] "Refresh" . gud-refresh)
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([run] menu-item "Run" gud-run
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:enable (and (not gud-running)
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(memq gud-minor-mode '(gdba gdb dbx jdb))))
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([until] menu-item "Continue to selection" gud-until
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:enable (and (not gud-running)
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(memq gud-minor-mode '(gdba gdb perldb))))
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([remove] menu-item "Remove Breakpoint" gud-remove
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:enable (not gud-running))
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([tbreak] menu-item "Temporary Breakpoint" gud-tbreak
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:enable (memq gud-minor-mode '(gdba gdb sdb xdb bashdb)))
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([break] menu-item "Set Breakpoint" gud-break
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:enable (not gud-running))
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([up] menu-item "Up Stack" gud-up
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:enable (and (not gud-running)
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(memq gud-minor-mode
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'(gdba gdb dbx xdb jdb pdb bashdb))))
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([down] menu-item "Down Stack" gud-down
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:enable (and (not gud-running)
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(memq gud-minor-mode
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'(gdba gdb dbx xdb jdb pdb bashdb))))
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([print] menu-item "Print Expression" gud-print
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:enable (not gud-running))
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([watch] menu-item "Watch Expression" gud-watch
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:enable (and (not gud-running)
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(eq gud-minor-mode 'gdba)))
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([finish] menu-item "Finish Function" gud-finish
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:enable (and (not gud-running)
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(memq gud-minor-mode
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'(gdba gdb xdb jdb pdb bashdb))))
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([stepi] menu-item "Step Instruction" gud-stepi
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:enable (and (not gud-running)
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(memq gud-minor-mode
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'(gdba gdb dbx))))
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([nexti] menu-item "Next Instruction" gud-nexti
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:enable (and (not gud-running)
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(memq gud-minor-mode
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'(gdba gdb dbx))))
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([step] menu-item "Step Line" gud-step
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:enable (not gud-running))
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([next] menu-item "Next Line" gud-next
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:enable (not gud-running))
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([cont] menu-item "Continue" gud-cont
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:enable (not gud-running)))
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"Menu for `gud-mode'."
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:name "Gud")
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(easy-mmode-defmap gud-minor-mode-map
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`(([menu-bar debug] . ("Gud" . ,gud-menu-map)))
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"Map used in visited files.")
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(let ((m (assq 'gud-minor-mode minor-mode-map-alist)))
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(if m (setcdr m gud-minor-mode-map)
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(push (cons 'gud-minor-mode gud-minor-mode-map) minor-mode-map-alist)))
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(defvar gud-mode-map
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;; Will inherit from comint-mode via define-derived-mode.
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(make-sparse-keymap)
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"`gud-mode' keymap.")
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(defvar gud-tool-bar-map
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(if (display-graphic-p)
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(let ((map (make-sparse-keymap)))
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(dolist (x '((gud-break . "gud-break")
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(gud-remove . "gud-remove")
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(gud-print . "gud-print")
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(gud-watch . "gud-watch")
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(gud-run . "gud-run")
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(gud-until . "gud-until")
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(gud-cont . "gud-cont")
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(gud-step . "gud-step")
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(gud-next . "gud-next")
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(gud-finish . "gud-finish")
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(gud-stepi . "gud-stepi")
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(gud-nexti . "gud-nexti")
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(gud-up . "gud-up")
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(gud-down . "gud-down"))
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map)
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(tool-bar-local-item-from-menu
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(car x) (cdr x) map gud-minor-mode-map)))))
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(defun gud-file-name (f)
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"Transform a relative file name to an absolute file name.
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Uses `gud-<MINOR-MODE>-directories' to find the source files."
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(if (file-exists-p f) (expand-file-name f)
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(let ((directories (gud-val 'directories))
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(result nil))
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(while directories
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(let ((path (expand-file-name f (car directories))))
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(if (file-exists-p path)
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(setq result path
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directories nil)))
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(setq directories (cdr directories)))
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result)))
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(defun gud-find-file (file)
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;; Don't get confused by double slashes in the name that comes from GDB.
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(while (string-match "//+" file)
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(setq file (replace-match "/" t t file)))
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(let ((minor-mode gud-minor-mode)
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(buf (funcall (or gud-find-file 'gud-file-name) file)))
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(when (stringp buf)
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(setq buf (and (file-readable-p buf) (find-file-noselect buf 'nowarn))))
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(when buf
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;; Copy `gud-minor-mode' to the found buffer to turn on the menu.
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(with-current-buffer buf
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(set (make-local-variable 'gud-minor-mode) minor-mode)
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(set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
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(make-local-variable 'gud-keep-buffer))
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buf)))
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;; ======================================================================
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;; command definition
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;; This macro is used below to define some basic debugger interface commands.
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;; Of course you may use `gud-def' with any other debugger command, including
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;; user defined ones.
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;; A macro call like (gud-def FUNC NAME KEY DOC) expands to a form
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;; which defines FUNC to send the command NAME to the debugger, gives
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;; it the docstring DOC, and binds that function to KEY in the GUD
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;; major mode. The function is also bound in the global keymap with the
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;; GUD prefix.
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(defmacro gud-def (func cmd key &optional doc)
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"Define FUNC to be a command sending STR and bound to KEY, with
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optional doc string DOC. Certain %-escapes in the string arguments
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are interpreted specially if present. These are:
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%f name (without directory) of current source file.
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%F name (without directory or extension) of current source file.
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%d directory of current source file.
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%l number of current source line
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%e text of the C lvalue or function-call expression surrounding point.
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%a text of the hexadecimal address surrounding point
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%p prefix argument to the command (if any) as a number
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The `current' source file is the file of the current buffer (if
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we're in a C file) or the source file current at the last break or
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step (if we're in the GUD buffer).
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The `current' line is that of the current buffer (if we're in a
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source file) or the source line number at the last break or step (if
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we're in the GUD buffer)."
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`(progn
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(defun ,func (arg)
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,@(if doc (list doc))
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(interactive "p")
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,(if (stringp cmd)
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`(gud-call ,cmd arg)
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cmd))
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,(if key `(local-set-key ,(concat "\C-c" key) ',func))
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,(if key `(global-set-key (vconcat gud-key-prefix ,key) ',func))))
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;; Where gud-display-frame should put the debugging arrow; a cons of
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;; (filename . line-number). This is set by the marker-filter, which scans
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;; the debugger's output for indications of the current program counter.
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(defvar gud-last-frame nil)
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;; Used by gud-refresh, which should cause gud-display-frame to redisplay
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;; the last frame, even if it's been called before and gud-last-frame has
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;; been set to nil.
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(defvar gud-last-last-frame nil)
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;; All debugger-specific information is collected here.
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;; Here's how it works, in case you ever need to add a debugger to the mode.
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;;
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;; Each entry must define the following at startup:
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;;
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;;<name>
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;; comint-prompt-regexp
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;; gud-<name>-massage-args
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;; gud-<name>-marker-filter
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;; gud-<name>-find-file
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;;
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;; The job of the massage-args method is to modify the given list of
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;; debugger arguments before running the debugger.
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;;
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;; The job of the marker-filter method is to detect file/line markers in
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;; strings and set the global gud-last-frame to indicate what display
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;; action (if any) should be triggered by the marker. Note that only
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;; whatever the method *returns* is displayed in the buffer; thus, you
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;; can filter the debugger's output, interpreting some and passing on
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;; the rest.
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;;
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;; The job of the find-file method is to visit and return the buffer indicated
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;; by the car of gud-tag-frame. This may be a file name, a tag name, or
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;; something else.
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;; ======================================================================
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;; speedbar support functions and variables.
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(eval-when-compile (require 'speedbar)) ;For speedbar-with-attached-buffer.
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(defvar gud-last-speedbar-buffer nil
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"The last GUD buffer used.")
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(defvar gud-last-speedbar-stackframe nil
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"Description of the currently displayed GUD stack.
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t means that there is no stack, and we are in display-file mode.")
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(defvar gud-speedbar-key-map nil
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"Keymap used when in the buffers display mode.")
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(defun gud-install-speedbar-variables ()
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"Install those variables used by speedbar to enhance gud/gdb."
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(if gud-speedbar-key-map
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nil
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(setq gud-speedbar-key-map (speedbar-make-specialized-keymap))
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(define-key gud-speedbar-key-map "j" 'speedbar-edit-line)
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(define-key gud-speedbar-key-map "e" 'speedbar-edit-line)
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(define-key gud-speedbar-key-map "\C-m" 'speedbar-edit-line)))
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(defvar gud-speedbar-menu-items
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;; Note to self. Add expand, and turn off items when not available.
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'(["Jump to stack frame" speedbar-edit-line t])
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"Additional menu items to add to the speedbar frame.")
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;; Make sure our special speedbar mode is loaded
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(if (featurep 'speedbar)
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(gud-install-speedbar-variables)
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(add-hook 'speedbar-load-hook 'gud-install-speedbar-variables))
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(defun gud-speedbar-buttons (buffer)
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"Create a speedbar display based on the current state of GUD.
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If the GUD BUFFER is not running a supported debugger, then turn
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off the specialized speedbar mode."
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(let ((minor-mode (with-current-buffer buffer gud-minor-mode)))
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(cond
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((eq minor-mode 'gdba)
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(when (or gdb-var-changed
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(not (save-excursion
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(goto-char (point-min))
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(let ((case-fold-search t))
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(looking-at "Watch Expressions:")))))
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(erase-buffer)
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(insert "Watch Expressions:\n")
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(let ((var-list gdb-var-list))
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(while var-list
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(let* ((depth 0) (start 0) (char ?+)
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(var (car var-list)) (varnum (nth 1 var)))
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(while (string-match "\\." varnum start)
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(setq depth (1+ depth)
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start (1+ (match-beginning 0))))
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(if (equal (nth 2 var) "0")
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(speedbar-make-tag-line 'bracket ?? nil nil
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(concat (car var) "\t" (nth 4 var))
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'gdb-edit-value
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nil
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(if (and (nth 5 var)
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gdb-show-changed-values)
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'font-lock-warning-face
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nil) depth)
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(if (and (cadr var-list)
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(string-match varnum (cadr (cadr var-list))))
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(setq char ?-))
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(speedbar-make-tag-line 'bracket char
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'gdb-speedbar-expand-node varnum
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(concat (car var) "\t" (nth 3 var))
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'gdb-var-delete
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nil nil depth)))
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(setq var-list (cdr var-list))))
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(setq gdb-var-changed nil)))
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(t (if (and (save-excursion
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(goto-char (point-min))
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(looking-at "Current Stack"))
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(equal gud-last-last-frame gud-last-speedbar-stackframe))
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nil
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(setq gud-last-speedbar-buffer buffer)
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(let ((gud-frame-list
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(cond ((eq minor-mode 'gdb)
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(gud-gdb-get-stackframe buffer))
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;; Add more debuggers here!
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(t (speedbar-remove-localized-speedbar-support buffer)
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nil))))
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(erase-buffer)
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(if (not gud-frame-list)
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(insert "No Stack frames\n")
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(insert "Current Stack:\n"))
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(dolist (frame gud-frame-list)
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(insert (nth 1 frame) ":\n")
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(if (= (length frame) 2)
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(progn
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; (speedbar-insert-button "[?]"
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; 'speedbar-button-face
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; nil nil nil t)
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(speedbar-insert-button (car frame)
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'speedbar-directory-face
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nil nil nil t))
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; (speedbar-insert-button "[+]"
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; 'speedbar-button-face
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; 'speedbar-highlight-face
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; 'gud-gdb-get-scope-data
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; frame t)
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(speedbar-insert-button (car frame)
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'speedbar-file-face
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'speedbar-highlight-face
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(cond ((memq minor-mode '(gdba gdb))
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'gud-gdb-goto-stackframe)
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(t (error "Should never be here")))
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frame t)))
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; (let ((selected-frame
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; (cond ((eq ff 'gud-gdb-find-file)
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; (gud-gdb-selected-frame-info buffer))
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; (t (error "Should never be here"))))))
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)
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(setq gud-last-speedbar-stackframe gud-last-last-frame))))))
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;; ======================================================================
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;; gdb functions
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;; History of argument lists passed to gdb.
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(defvar gud-gdb-history nil)
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(defcustom gud-gdb-command-name "gdb --annotate=3"
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"Default command to execute an executable under the GDB debugger."
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:type 'string
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:group 'gud)
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(defvar gud-gdb-marker-regexp
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;; This used to use path-separator instead of ":";
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;; however, we found that on both Windows 32 and MSDOS
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;; a colon is correct here.
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(concat "\032\032\\(.:?[^" ":" "\n]*\\)" ":"
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"\\([0-9]*\\)" ":" ".*\n"))
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;; There's no guarantee that Emacs will hand the filter the entire
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;; marker at once; it could be broken up across several strings. We
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;; might even receive a big chunk with several markers in it. If we
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;; receive a chunk of text which looks like it might contain the
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;; beginning of a marker, we save it here between calls to the
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;; filter.
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(defvar gud-marker-acc "")
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(make-variable-buffer-local 'gud-marker-acc)
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(defun gud-gdb-marker-filter (string)
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(setq gud-marker-acc (concat gud-marker-acc string))
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(let ((output ""))
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||
|
||
;; Process all the complete markers in this chunk.
|
||
(while (string-match gud-gdb-marker-regexp gud-marker-acc)
|
||
(setq
|
||
|
||
;; Extract the frame position from the marker.
|
||
gud-last-frame (cons (match-string 1 gud-marker-acc)
|
||
(string-to-int (match-string 2 gud-marker-acc)))
|
||
|
||
;; Append any text before the marker to the output we're going
|
||
;; to return - we don't include the marker in this text.
|
||
output (concat output
|
||
(substring gud-marker-acc 0 (match-beginning 0)))
|
||
|
||
;; Set the accumulator to the remaining text.
|
||
gud-marker-acc (substring gud-marker-acc (match-end 0))))
|
||
|
||
(while (string-match "\n\032\032\\(.*\\)\n" gud-marker-acc)
|
||
(when (string-equal (match-string 1 gud-marker-acc) "prompt")
|
||
(require 'gdb-ui)
|
||
(gdb-prompt nil))
|
||
(setq
|
||
;; Append any text before the marker to the output we're going
|
||
;; to return - we don't include the marker in this text.
|
||
output (concat output
|
||
(substring gud-marker-acc 0 (match-beginning 0)))
|
||
|
||
;; Set the accumulator to the remaining text.
|
||
gud-marker-acc (substring gud-marker-acc (match-end 0))))
|
||
|
||
;; Does the remaining text look like it might end with the
|
||
;; beginning of another marker? If it does, then keep it in
|
||
;; gud-marker-acc until we receive the rest of it. Since we
|
||
;; know the full marker regexp above failed, it's pretty simple to
|
||
;; test for marker starts.
|
||
(if (string-match "\032.*\\'" gud-marker-acc)
|
||
(progn
|
||
;; Everything before the potential marker start can be output.
|
||
(setq output (concat output (substring gud-marker-acc
|
||
0 (match-beginning 0))))
|
||
|
||
;; Everything after, we save, to combine with later input.
|
||
(setq gud-marker-acc
|
||
(substring gud-marker-acc (match-beginning 0))))
|
||
|
||
(setq output (concat output gud-marker-acc)
|
||
gud-marker-acc ""))
|
||
|
||
output))
|
||
|
||
(easy-mmode-defmap gud-minibuffer-local-map
|
||
'(("\C-i" . comint-dynamic-complete-filename))
|
||
"Keymap for minibuffer prompting of gud startup command."
|
||
:inherit minibuffer-local-map)
|
||
|
||
(defun gud-query-cmdline (minor-mode &optional init)
|
||
(let* ((hist-sym (gud-symbol 'history nil minor-mode))
|
||
(cmd-name (gud-val 'command-name minor-mode)))
|
||
(unless (boundp hist-sym) (set hist-sym nil))
|
||
(read-from-minibuffer
|
||
(format "Run %s (like this): " minor-mode)
|
||
(or (car-safe (symbol-value hist-sym))
|
||
(concat (or cmd-name (symbol-name minor-mode))
|
||
" "
|
||
(or init
|
||
(let ((file nil))
|
||
(dolist (f (directory-files default-directory) file)
|
||
(if (and (file-executable-p f)
|
||
(not (file-directory-p f))
|
||
(or (not file)
|
||
(file-newer-than-file-p f file)))
|
||
(setq file f)))))))
|
||
gud-minibuffer-local-map nil
|
||
hist-sym)))
|
||
|
||
(defvar gdb-first-pre-prompt t)
|
||
|
||
;;;###autoload
|
||
(defun gdb (command-line)
|
||
"Run gdb on program FILE in buffer *gud-FILE*.
|
||
The directory containing FILE becomes the initial working directory
|
||
and source-file directory for your debugger."
|
||
(interactive (list (gud-query-cmdline 'gdb)))
|
||
|
||
(gud-common-init command-line nil 'gud-gdb-marker-filter)
|
||
(set (make-local-variable 'gud-minor-mode) 'gdb)
|
||
|
||
(gud-def gud-break "break %f:%l" "\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-tbreak "tbreak %f:%l" "\C-t" "Set temporary breakpoint at current line.")
|
||
(gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line")
|
||
(gud-def gud-step "step %p" "\C-s" "Step one source line with display.")
|
||
(gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.")
|
||
(gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).")
|
||
(gud-def gud-nexti "nexti %p" nil "Step one instruction (skip functions).")
|
||
(gud-def gud-cont "cont" "\C-r" "Continue with display.")
|
||
(gud-def gud-finish "finish" "\C-f" "Finish executing current function.")
|
||
(gud-def gud-jump "tbreak %f:%l\njump %f:%l" "\C-j" "Relocate execution address to line at point in source buffer.")
|
||
|
||
(gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).")
|
||
(gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).")
|
||
(gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.")
|
||
(gud-def gud-until "until %l" "\C-u" "Continue to current line.")
|
||
(gud-def gud-run "run" nil "Run the program.")
|
||
|
||
(local-set-key "\C-i" 'gud-gdb-complete-command)
|
||
(setq comint-prompt-regexp "^(.*gdb[+]?) *")
|
||
(setq paragraph-start comint-prompt-regexp)
|
||
(setq gdb-first-pre-prompt t)
|
||
(run-hooks 'gdb-mode-hook))
|
||
|
||
;; One of the nice features of GDB is its impressive support for
|
||
;; context-sensitive command completion. We preserve that feature
|
||
;; in the GUD buffer by using a GDB command designed just for Emacs.
|
||
|
||
;; The completion process filter indicates when it is finished.
|
||
(defvar gud-gdb-fetch-lines-in-progress)
|
||
|
||
;; Since output may arrive in fragments we accumulate partials strings here.
|
||
(defvar gud-gdb-fetch-lines-string)
|
||
|
||
;; We need to know how much of the completion to chop off.
|
||
(defvar gud-gdb-fetch-lines-break)
|
||
|
||
;; The completion list is constructed by the process filter.
|
||
(defvar gud-gdb-fetched-lines)
|
||
|
||
(defvar gud-comint-buffer nil)
|
||
|
||
(defun gud-gdb-complete-command ()
|
||
"Perform completion on the GDB command preceding point.
|
||
This is implemented using the GDB `complete' command which isn't
|
||
available with older versions of GDB."
|
||
(interactive)
|
||
(let* ((end (point))
|
||
(command (buffer-substring (comint-line-beginning-position) end))
|
||
(command-word
|
||
;; Find the word break. This match will always succeed.
|
||
(and (string-match "\\(\\`\\| \\)\\([^ ]*\\)\\'" command)
|
||
(substring command (match-beginning 2))))
|
||
(complete-list
|
||
(gud-gdb-run-command-fetch-lines (concat "complete " command)
|
||
(current-buffer)
|
||
;; From string-match above.
|
||
(match-beginning 2))))
|
||
;; Protect against old versions of GDB.
|
||
(and complete-list
|
||
(string-match "^Undefined command: \"complete\"" (car complete-list))
|
||
(error "This version of GDB doesn't support the `complete' command"))
|
||
;; Sort the list like readline.
|
||
(setq complete-list (sort complete-list (function string-lessp)))
|
||
;; Remove duplicates.
|
||
(let ((first complete-list)
|
||
(second (cdr complete-list)))
|
||
(while second
|
||
(if (string-equal (car first) (car second))
|
||
(setcdr first (setq second (cdr second)))
|
||
(setq first second
|
||
second (cdr second)))))
|
||
;; Add a trailing single quote if there is a unique completion
|
||
;; and it contains an odd number of unquoted single quotes.
|
||
(and (= (length complete-list) 1)
|
||
(let ((str (car complete-list))
|
||
(pos 0)
|
||
(count 0))
|
||
(while (string-match "\\([^'\\]\\|\\\\'\\)*'" str pos)
|
||
(setq count (1+ count)
|
||
pos (match-end 0)))
|
||
(and (= (mod count 2) 1)
|
||
(setq complete-list (list (concat str "'"))))))
|
||
;; Let comint handle the rest.
|
||
(comint-dynamic-simple-complete command-word complete-list)))
|
||
|
||
;; The completion process filter is installed temporarily to slurp the
|
||
;; output of GDB up to the next prompt and build the completion list.
|
||
(defun gud-gdb-fetch-lines-filter (string filter)
|
||
"Filter used to read the list of lines output by a command.
|
||
STRING is the output to filter.
|
||
It is passed through FILTER before we look at it."
|
||
(setq string (funcall filter string))
|
||
(setq string (concat gud-gdb-fetch-lines-string string))
|
||
(while (string-match "\n" string)
|
||
(push (substring string gud-gdb-fetch-lines-break (match-beginning 0))
|
||
gud-gdb-fetched-lines)
|
||
(setq string (substring string (match-end 0))))
|
||
(if (string-match comint-prompt-regexp string)
|
||
(progn
|
||
(setq gud-gdb-fetch-lines-in-progress nil)
|
||
string)
|
||
(progn
|
||
(setq gud-gdb-fetch-lines-string string)
|
||
"")))
|
||
|
||
;; gdb speedbar functions
|
||
|
||
(defun gud-gdb-goto-stackframe (text token indent)
|
||
"Goto the stackframe described by TEXT, TOKEN, and INDENT."
|
||
(speedbar-with-attached-buffer
|
||
(gud-basic-call (concat "server frame " (nth 1 token)))
|
||
(sit-for 1)))
|
||
|
||
(defvar gud-gdb-fetched-stack-frame nil
|
||
"Stack frames we are fetching from GDB.")
|
||
|
||
;(defun gud-gdb-get-scope-data (text token indent)
|
||
; ;; checkdoc-params: (indent)
|
||
; "Fetch data associated with a stack frame, and expand/contract it.
|
||
;Data to do this is retrieved from TEXT and TOKEN."
|
||
; (let ((args nil) (scope nil))
|
||
; (gud-gdb-run-command-fetch-lines "info args")
|
||
;
|
||
; (gud-gdb-run-command-fetch-lines "info local")
|
||
;
|
||
; ))
|
||
|
||
(defun gud-gdb-get-stackframe (buffer)
|
||
"Extract the current stack frame out of the GUD GDB BUFFER."
|
||
(let ((newlst nil)
|
||
(fetched-stack-frame-list
|
||
(gud-gdb-run-command-fetch-lines "server backtrace" buffer)))
|
||
(if (and (car fetched-stack-frame-list)
|
||
(string-match "No stack" (car fetched-stack-frame-list)))
|
||
;; Go into some other mode???
|
||
nil
|
||
(dolist (e fetched-stack-frame-list)
|
||
(let ((name nil) (num nil))
|
||
(if (not (or
|
||
(string-match "^#\\([0-9]+\\) +[0-9a-fx]+ in \\([:0-9a-zA-Z_]+\\) (" e)
|
||
(string-match "^#\\([0-9]+\\) +\\([:0-9a-zA-Z_]+\\) (" e)))
|
||
(if (not (string-match
|
||
"at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e))
|
||
nil
|
||
(setcar newlst
|
||
(list (nth 0 (car newlst))
|
||
(nth 1 (car newlst))
|
||
(match-string 1 e)
|
||
(match-string 2 e))))
|
||
(setq num (match-string 1 e)
|
||
name (match-string 2 e))
|
||
(setq newlst
|
||
(cons
|
||
(if (string-match
|
||
"at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e)
|
||
(list name num (match-string 1 e)
|
||
(match-string 2 e))
|
||
(list name num))
|
||
newlst)))))
|
||
(nreverse newlst))))
|
||
|
||
;(defun gud-gdb-selected-frame-info (buffer)
|
||
; "Learn GDB information for the currently selected stack frame in BUFFER."
|
||
; )
|
||
|
||
(defun gud-gdb-run-command-fetch-lines (command buffer &optional skip)
|
||
"Run COMMAND, and return the list of lines it outputs.
|
||
BUFFER is the GUD buffer in which to run the command.
|
||
SKIP is the number of chars to skip on each lines, it defaults to 0."
|
||
(with-current-buffer buffer
|
||
(if (save-excursion
|
||
(goto-char (point-max))
|
||
(forward-line 0)
|
||
(not (looking-at comint-prompt-regexp)))
|
||
nil
|
||
;; Much of this copied from GDB complete, but I'm grabbing the stack
|
||
;; frame instead.
|
||
(let ((gud-gdb-fetch-lines-in-progress t)
|
||
(gud-gdb-fetched-lines nil)
|
||
(gud-gdb-fetch-lines-string nil)
|
||
(gud-gdb-fetch-lines-break (or skip 0))
|
||
(gud-marker-filter
|
||
`(lambda (string) (gud-gdb-fetch-lines-filter string ',gud-marker-filter))))
|
||
;; Issue the command to GDB.
|
||
(gud-basic-call command)
|
||
;; Slurp the output.
|
||
(while gud-gdb-fetch-lines-in-progress
|
||
(accept-process-output (get-buffer-process buffer)))
|
||
(nreverse gud-gdb-fetched-lines)))))
|
||
|
||
|
||
;; ======================================================================
|
||
;; sdb functions
|
||
|
||
;; History of argument lists passed to sdb.
|
||
(defvar gud-sdb-history nil)
|
||
|
||
(defvar gud-sdb-needs-tags (not (file-exists-p "/var"))
|
||
"If nil, we're on a System V Release 4 and don't need the tags hack.")
|
||
|
||
(defvar gud-sdb-lastfile nil)
|
||
|
||
(defun gud-sdb-marker-filter (string)
|
||
(setq gud-marker-acc
|
||
(if gud-marker-acc (concat gud-marker-acc string) string))
|
||
(let (start)
|
||
;; Process all complete markers in this chunk
|
||
(while
|
||
(cond
|
||
;; System V Release 3.2 uses this format
|
||
((string-match "\\(^\\|\n\\)\\*?\\(0x\\w* in \\)?\\([^:\n]*\\):\\([0-9]*\\):.*\n"
|
||
gud-marker-acc start)
|
||
(setq gud-last-frame
|
||
(cons (match-string 3 gud-marker-acc)
|
||
(string-to-int (match-string 4 gud-marker-acc)))))
|
||
;; System V Release 4.0 quite often clumps two lines together
|
||
((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n\\([0-9]+\\):"
|
||
gud-marker-acc start)
|
||
(setq gud-sdb-lastfile (match-string 2 gud-marker-acc))
|
||
(setq gud-last-frame
|
||
(cons gud-sdb-lastfile
|
||
(string-to-int (match-string 3 gud-marker-acc)))))
|
||
;; System V Release 4.0
|
||
((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n"
|
||
gud-marker-acc start)
|
||
(setq gud-sdb-lastfile (match-string 2 gud-marker-acc)))
|
||
((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):"
|
||
gud-marker-acc start))
|
||
(setq gud-last-frame
|
||
(cons gud-sdb-lastfile
|
||
(string-to-int (match-string 1 gud-marker-acc)))))
|
||
(t
|
||
(setq gud-sdb-lastfile nil)))
|
||
(setq start (match-end 0)))
|
||
|
||
;; Search for the last incomplete line in this chunk
|
||
(while (string-match "\n" gud-marker-acc start)
|
||
(setq start (match-end 0)))
|
||
|
||
;; If we have an incomplete line, store it in gud-marker-acc.
|
||
(setq gud-marker-acc (substring gud-marker-acc (or start 0))))
|
||
string)
|
||
|
||
(defun gud-sdb-find-file (f)
|
||
(if gud-sdb-needs-tags (find-tag-noselect f) (find-file-noselect f)))
|
||
|
||
;;;###autoload
|
||
(defun sdb (command-line)
|
||
"Run sdb on program FILE in buffer *gud-FILE*.
|
||
The directory containing FILE becomes the initial working directory
|
||
and source-file directory for your debugger."
|
||
(interactive (list (gud-query-cmdline 'sdb)))
|
||
|
||
(if (and gud-sdb-needs-tags
|
||
(not (and (boundp 'tags-file-name)
|
||
(stringp tags-file-name)
|
||
(file-exists-p tags-file-name))))
|
||
(error "The sdb support requires a valid tags table to work"))
|
||
|
||
(gud-common-init command-line nil 'gud-sdb-marker-filter 'gud-sdb-find-file)
|
||
(set (make-local-variable 'gud-minor-mode) 'sdb)
|
||
|
||
(gud-def gud-break "%l b" "\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-tbreak "%l c" "\C-t" "Set temporary breakpoint at current line.")
|
||
(gud-def gud-remove "%l d" "\C-d" "Remove breakpoint at current line")
|
||
(gud-def gud-step "s %p" "\C-s" "Step one source line with display.")
|
||
(gud-def gud-stepi "i %p" "\C-i" "Step one instruction with display.")
|
||
(gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).")
|
||
(gud-def gud-cont "c" "\C-r" "Continue with display.")
|
||
(gud-def gud-print "%e/" "\C-p" "Evaluate C expression at point.")
|
||
|
||
(setq comint-prompt-regexp "\\(^\\|\n\\)\\*")
|
||
(setq paragraph-start comint-prompt-regexp)
|
||
(run-hooks 'sdb-mode-hook)
|
||
)
|
||
|
||
;; ======================================================================
|
||
;; dbx functions
|
||
|
||
;; History of argument lists passed to dbx.
|
||
(defvar gud-dbx-history nil)
|
||
|
||
(defcustom gud-dbx-directories nil
|
||
"*A list of directories that dbx should search for source code.
|
||
If nil, only source files in the program directory
|
||
will be known to dbx.
|
||
|
||
The file names should be absolute, or relative to the directory
|
||
containing the executable being debugged."
|
||
:type '(choice (const :tag "Current Directory" nil)
|
||
(repeat :value ("")
|
||
directory))
|
||
:group 'gud)
|
||
|
||
(defun gud-dbx-massage-args (file args)
|
||
(nconc (let ((directories gud-dbx-directories)
|
||
(result nil))
|
||
(while directories
|
||
(setq result (cons (car directories) (cons "-I" result)))
|
||
(setq directories (cdr directories)))
|
||
(nreverse result))
|
||
args))
|
||
|
||
(defun gud-dbx-marker-filter (string)
|
||
(setq gud-marker-acc (if gud-marker-acc (concat gud-marker-acc string) string))
|
||
|
||
(let (start)
|
||
;; Process all complete markers in this chunk.
|
||
(while (or (string-match
|
||
"stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\""
|
||
gud-marker-acc start)
|
||
(string-match
|
||
"signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\""
|
||
gud-marker-acc start))
|
||
(setq gud-last-frame
|
||
(cons (match-string 2 gud-marker-acc)
|
||
(string-to-int (match-string 1 gud-marker-acc)))
|
||
start (match-end 0)))
|
||
|
||
;; Search for the last incomplete line in this chunk
|
||
(while (string-match "\n" gud-marker-acc start)
|
||
(setq start (match-end 0)))
|
||
|
||
;; If the incomplete line APPEARS to begin with another marker, keep it
|
||
;; in the accumulator. Otherwise, clear the accumulator to avoid an
|
||
;; unnecessary concat during the next call.
|
||
(setq gud-marker-acc
|
||
(if (string-match "\\(stopped\\|signal\\)" gud-marker-acc start)
|
||
(substring gud-marker-acc (match-beginning 0))
|
||
nil)))
|
||
string)
|
||
|
||
;; Functions for Mips-style dbx. Given the option `-emacs', documented in
|
||
;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's.
|
||
(defvar gud-mips-p
|
||
(or (string-match "^mips-[^-]*-ultrix" system-configuration)
|
||
;; We haven't tested gud on this system:
|
||
(string-match "^mips-[^-]*-riscos" system-configuration)
|
||
;; It's documented on OSF/1.3
|
||
(string-match "^mips-[^-]*-osf1" system-configuration)
|
||
(string-match "^alpha[^-]*-[^-]*-osf" system-configuration))
|
||
"Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').")
|
||
|
||
(defvar gud-dbx-command-name
|
||
(concat "dbx" (if gud-mips-p " -emacs")))
|
||
|
||
;; This is just like the gdb one except for the regexps since we need to cope
|
||
;; with an optional breakpoint number in [] before the ^Z^Z
|
||
(defun gud-mipsdbx-marker-filter (string)
|
||
(setq gud-marker-acc (concat gud-marker-acc string))
|
||
(let ((output ""))
|
||
|
||
;; Process all the complete markers in this chunk.
|
||
(while (string-match
|
||
;; This is like th gdb marker but with an optional
|
||
;; leading break point number like `[1] '
|
||
"[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n"
|
||
gud-marker-acc)
|
||
(setq
|
||
|
||
;; Extract the frame position from the marker.
|
||
gud-last-frame
|
||
(cons (match-string 1 gud-marker-acc)
|
||
(string-to-int (match-string 2 gud-marker-acc)))
|
||
|
||
;; Append any text before the marker to the output we're going
|
||
;; to return - we don't include the marker in this text.
|
||
output (concat output
|
||
(substring gud-marker-acc 0 (match-beginning 0)))
|
||
|
||
;; Set the accumulator to the remaining text.
|
||
gud-marker-acc (substring gud-marker-acc (match-end 0))))
|
||
|
||
;; Does the remaining text look like it might end with the
|
||
;; beginning of another marker? If it does, then keep it in
|
||
;; gud-marker-acc until we receive the rest of it. Since we
|
||
;; know the full marker regexp above failed, it's pretty simple to
|
||
;; test for marker starts.
|
||
(if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc)
|
||
(progn
|
||
;; Everything before the potential marker start can be output.
|
||
(setq output (concat output (substring gud-marker-acc
|
||
0 (match-beginning 0))))
|
||
|
||
;; Everything after, we save, to combine with later input.
|
||
(setq gud-marker-acc
|
||
(substring gud-marker-acc (match-beginning 0))))
|
||
|
||
(setq output (concat output gud-marker-acc)
|
||
gud-marker-acc ""))
|
||
|
||
output))
|
||
|
||
;; The dbx in IRIX is a pain. It doesn't print the file name when
|
||
;; stopping at a breakpoint (but you do get it from the `up' and
|
||
;; `down' commands...). The only way to extract the information seems
|
||
;; to be with a `file' command, although the current line number is
|
||
;; available in $curline. Thus we have to look for output which
|
||
;; appears to indicate a breakpoint. Then we prod the dbx sub-process
|
||
;; to output the information we want with a combination of the
|
||
;; `printf' and `file' commands as a pseudo marker which we can
|
||
;; recognise next time through the marker-filter. This would be like
|
||
;; the gdb marker but you can't get the file name without a newline...
|
||
;; Note that gud-remove won't work since Irix dbx expects a breakpoint
|
||
;; number rather than a line number etc. Maybe this could be made to
|
||
;; work by listing all the breakpoints and picking the one(s) with the
|
||
;; correct line number, but life's too short.
|
||
;; d.love@dl.ac.uk (Dave Love) can be blamed for this
|
||
|
||
(defvar gud-irix-p
|
||
(and (string-match "^mips-[^-]*-irix" system-configuration)
|
||
(not (string-match "irix[6-9]\\.[1-9]" system-configuration)))
|
||
"Non-nil to assume the interface appropriate for IRIX dbx.
|
||
This works in IRIX 4, 5 and 6, but `gud-dbx-use-stopformat-p' provides
|
||
a better solution in 6.1 upwards.")
|
||
(defvar gud-dbx-use-stopformat-p
|
||
(string-match "irix[6-9]\\.[1-9]" system-configuration)
|
||
"Non-nil to use the dbx feature present at least from Irix 6.1
|
||
whereby $stopformat=1 produces an output format compatiable with
|
||
`gud-dbx-marker-filter'.")
|
||
;; [Irix dbx seems to be a moving target. The dbx output changed
|
||
;; subtly sometime between OS v4.0.5 and v5.2 so that, for instance,
|
||
;; the output from `up' is no longer spotted by gud (and it's probably
|
||
;; not distinctive enough to try to match it -- use C-<, C->
|
||
;; exclusively) . For 5.3 and 6.0, the $curline variable changed to
|
||
;; `long long'(why?!), so the printf stuff needed changing. The line
|
||
;; number was cast to `long' as a compromise between the new `long
|
||
;; long' and the original `int'. This is reported not to work in 6.2,
|
||
;; so it's changed back to int -- don't make your sources too long.
|
||
;; From Irix6.1 (but not 6.0?) dbx supports an undocumented feature
|
||
;; whereby `set $stopformat=1' reportedly produces output compatible
|
||
;; with `gud-dbx-marker-filter', which we prefer.
|
||
|
||
;; The process filter is also somewhat
|
||
;; unreliable, sometimes not spotting the markers; I don't know
|
||
;; whether there's anything that can be done about that. It would be
|
||
;; much better if SGI could be persuaded to (re?)instate the MIPS
|
||
;; -emacs flag for gdb-like output (which ought to be possible as most
|
||
;; of the communication I've had over it has been from sgi.com).]
|
||
|
||
;; this filter is influenced by the xdb one rather than the gdb one
|
||
(defun gud-irixdbx-marker-filter (string)
|
||
(let (result (case-fold-search nil))
|
||
(if (or (string-match comint-prompt-regexp string)
|
||
(string-match ".*\012" string))
|
||
(setq result (concat gud-marker-acc string)
|
||
gud-marker-acc "")
|
||
(setq gud-marker-acc (concat gud-marker-acc string)))
|
||
(if result
|
||
(cond
|
||
;; look for breakpoint or signal indication e.g.:
|
||
;; [2] Process 1267 (pplot) stopped at [params:338 ,0x400ec0]
|
||
;; Process 1281 (pplot) stopped at [params:339 ,0x400ec8]
|
||
;; Process 1270 (pplot) Floating point exception [._read._read:16 ,0x452188]
|
||
((string-match
|
||
"^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n"
|
||
result)
|
||
;; prod dbx into printing out the line number and file
|
||
;; name in a form we can grok as below
|
||
(process-send-string (get-buffer-process gud-comint-buffer)
|
||
"printf \"\032\032%1d:\",(int)$curline;file\n"))
|
||
;; look for result of, say, "up" e.g.:
|
||
;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c]
|
||
;; (this will also catch one of the lines printed by "where")
|
||
((string-match
|
||
"^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n"
|
||
result)
|
||
(let ((file (match-string 1 result)))
|
||
(if (file-exists-p file)
|
||
(setq gud-last-frame
|
||
(cons (match-string 1 result)
|
||
(string-to-int (match-string 2 result))))))
|
||
result)
|
||
((string-match ; kluged-up marker as above
|
||
"\032\032\\([0-9]*\\):\\(.*\\)\n" result)
|
||
(let ((file (gud-file-name (match-string 2 result))))
|
||
(if (and file (file-exists-p file))
|
||
(setq gud-last-frame
|
||
(cons file
|
||
(string-to-int (match-string 1 result))))))
|
||
(setq result (substring result 0 (match-beginning 0))))))
|
||
(or result "")))
|
||
|
||
(defvar gud-dgux-p (string-match "-dgux" system-configuration)
|
||
"Non-nil means to assume the interface approriate for DG/UX dbx.
|
||
This was tested using R4.11.")
|
||
|
||
;; There are a couple of differences between DG's dbx output and normal
|
||
;; dbx output which make it nontrivial to integrate this into the
|
||
;; standard dbx-marker-filter (mainly, there are a different number of
|
||
;; backreferences). The markers look like:
|
||
;;
|
||
;; (0) Stopped at line 10, routine main(argc=1, argv=0xeffff0e0), file t.c
|
||
;;
|
||
;; from breakpoints (the `(0)' there isn't constant, it's the breakpoint
|
||
;; number), and
|
||
;;
|
||
;; Stopped at line 13, routine main(argc=1, argv=0xeffff0e0), file t.c
|
||
;;
|
||
;; from signals and
|
||
;;
|
||
;; Frame 21, line 974, routine command_loop(), file keyboard.c
|
||
;;
|
||
;; from up/down/where.
|
||
|
||
(defun gud-dguxdbx-marker-filter (string)
|
||
(setq gud-marker-acc (if gud-marker-acc
|
||
(concat gud-marker-acc string)
|
||
string))
|
||
(let ((re (concat "^\\(\\(([0-9]+) \\)?Stopped at\\|Frame [0-9]+,\\)"
|
||
" line \\([0-9]+\\), routine .*, file \\([^ \t\n]+\\)"))
|
||
start)
|
||
;; Process all complete markers in this chunk.
|
||
(while (string-match re gud-marker-acc start)
|
||
(setq gud-last-frame
|
||
(cons (match-string 4 gud-marker-acc)
|
||
(string-to-int (match-string 3 gud-marker-acc)))
|
||
start (match-end 0)))
|
||
|
||
;; Search for the last incomplete line in this chunk
|
||
(while (string-match "\n" gud-marker-acc start)
|
||
(setq start (match-end 0)))
|
||
|
||
;; If the incomplete line APPEARS to begin with another marker, keep it
|
||
;; in the accumulator. Otherwise, clear the accumulator to avoid an
|
||
;; unnecessary concat during the next call.
|
||
(setq gud-marker-acc
|
||
(if (string-match "Stopped\\|Frame" gud-marker-acc start)
|
||
(substring gud-marker-acc (match-beginning 0))
|
||
nil)))
|
||
string)
|
||
|
||
;;;###autoload
|
||
(defun dbx (command-line)
|
||
"Run dbx on program FILE in buffer *gud-FILE*.
|
||
The directory containing FILE becomes the initial working directory
|
||
and source-file directory for your debugger."
|
||
(interactive (list (gud-query-cmdline 'dbx)))
|
||
|
||
(cond
|
||
(gud-mips-p
|
||
(gud-common-init command-line nil 'gud-mipsdbx-marker-filter))
|
||
(gud-irix-p
|
||
(gud-common-init command-line 'gud-dbx-massage-args
|
||
'gud-irixdbx-marker-filter))
|
||
(gud-dgux-p
|
||
(gud-common-init command-line 'gud-dbx-massage-args
|
||
'gud-dguxdbx-marker-filter))
|
||
(t
|
||
(gud-common-init command-line 'gud-dbx-massage-args
|
||
'gud-dbx-marker-filter)))
|
||
|
||
(set (make-local-variable 'gud-minor-mode) 'dbx)
|
||
|
||
(cond
|
||
(gud-mips-p
|
||
(gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.")
|
||
(gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.")
|
||
(gud-def gud-break "stop at \"%f\":%l"
|
||
"\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-finish "return" "\C-f" "Finish executing current function."))
|
||
(gud-irix-p
|
||
(gud-def gud-break "stop at \"%d%f\":%l"
|
||
"\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-finish "return" "\C-f" "Finish executing current function.")
|
||
(gud-def gud-up "up %p; printf \"\032\032%1d:\",(int)$curline;file\n"
|
||
"<" "Up (numeric arg) stack frames.")
|
||
(gud-def gud-down "down %p; printf \"\032\032%1d:\",(int)$curline;file\n"
|
||
">" "Down (numeric arg) stack frames.")
|
||
;; Make dbx give out the source location info that we need.
|
||
(process-send-string (get-buffer-process gud-comint-buffer)
|
||
"printf \"\032\032%1d:\",(int)$curline;file\n"))
|
||
(t
|
||
(gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.")
|
||
(gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.")
|
||
(gud-def gud-break "file \"%d%f\"\nstop at %l"
|
||
"\C-b" "Set breakpoint at current line.")
|
||
(if gud-dbx-use-stopformat-p
|
||
(process-send-string (get-buffer-process gud-comint-buffer)
|
||
"set $stopformat=1\n"))))
|
||
|
||
(gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line")
|
||
(gud-def gud-step "step %p" "\C-s" "Step one line with display.")
|
||
(gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.")
|
||
(gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).")
|
||
(gud-def gud-nexti "nexti %p" nil "Step one instruction (skip functions).")
|
||
(gud-def gud-cont "cont" "\C-r" "Continue with display.")
|
||
(gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.")
|
||
(gud-def gud-run "run" nil "Run the program.")
|
||
|
||
(setq comint-prompt-regexp "^[^)\n]*dbx) *")
|
||
(setq paragraph-start comint-prompt-regexp)
|
||
(run-hooks 'dbx-mode-hook)
|
||
)
|
||
|
||
;; ======================================================================
|
||
;; xdb (HP PARISC debugger) functions
|
||
|
||
;; History of argument lists passed to xdb.
|
||
(defvar gud-xdb-history nil)
|
||
|
||
(defcustom gud-xdb-directories nil
|
||
"*A list of directories that xdb should search for source code.
|
||
If nil, only source files in the program directory
|
||
will be known to xdb.
|
||
|
||
The file names should be absolute, or relative to the directory
|
||
containing the executable being debugged."
|
||
:type '(choice (const :tag "Current Directory" nil)
|
||
(repeat :value ("")
|
||
directory))
|
||
:group 'gud)
|
||
|
||
(defun gud-xdb-massage-args (file args)
|
||
(nconc (let ((directories gud-xdb-directories)
|
||
(result nil))
|
||
(while directories
|
||
(setq result (cons (car directories) (cons "-d" result)))
|
||
(setq directories (cdr directories)))
|
||
(nreverse result))
|
||
args))
|
||
|
||
;; xdb does not print the lines all at once, so we have to accumulate them
|
||
(defun gud-xdb-marker-filter (string)
|
||
(let (result)
|
||
(if (or (string-match comint-prompt-regexp string)
|
||
(string-match ".*\012" string))
|
||
(setq result (concat gud-marker-acc string)
|
||
gud-marker-acc "")
|
||
(setq gud-marker-acc (concat gud-marker-acc string)))
|
||
(if result
|
||
(if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\)[: ]"
|
||
result)
|
||
(string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):"
|
||
result))
|
||
(let ((line (string-to-int (match-string 2 result)))
|
||
(file (gud-file-name (match-string 1 result))))
|
||
(if file
|
||
(setq gud-last-frame (cons file line))))))
|
||
(or result "")))
|
||
|
||
;;;###autoload
|
||
(defun xdb (command-line)
|
||
"Run xdb on program FILE in buffer *gud-FILE*.
|
||
The directory containing FILE becomes the initial working directory
|
||
and source-file directory for your debugger.
|
||
|
||
You can set the variable 'gud-xdb-directories' to a list of program source
|
||
directories if your program contains sources from more than one directory."
|
||
(interactive (list (gud-query-cmdline 'xdb)))
|
||
|
||
(gud-common-init command-line 'gud-xdb-massage-args
|
||
'gud-xdb-marker-filter)
|
||
(set (make-local-variable 'gud-minor-mode) 'xdb)
|
||
|
||
(gud-def gud-break "b %f:%l" "\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-tbreak "b %f:%l\\t" "\C-t"
|
||
"Set temporary breakpoint at current line.")
|
||
(gud-def gud-remove "db" "\C-d" "Remove breakpoint at current line")
|
||
(gud-def gud-step "s %p" "\C-s" "Step one line with display.")
|
||
(gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).")
|
||
(gud-def gud-cont "c" "\C-r" "Continue with display.")
|
||
(gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.")
|
||
(gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.")
|
||
(gud-def gud-finish "bu\\t" "\C-f" "Finish executing current function.")
|
||
(gud-def gud-print "p %e" "\C-p" "Evaluate C expression at point.")
|
||
|
||
(setq comint-prompt-regexp "^>")
|
||
(setq paragraph-start comint-prompt-regexp)
|
||
(run-hooks 'xdb-mode-hook))
|
||
|
||
;; ======================================================================
|
||
;; perldb functions
|
||
|
||
;; History of argument lists passed to perldb.
|
||
(defvar gud-perldb-history nil)
|
||
|
||
(defun gud-perldb-massage-args (file args)
|
||
"Convert a command line as would be typed normally to run perldb
|
||
into one that invokes an Emacs-enabled debugging session.
|
||
\"-emacs\" is inserted where it will be $ARGV[0] (see perl5db.pl)."
|
||
;; FIXME: what if the command is `make perldb' and doesn't accept those extra
|
||
;; arguments ?
|
||
(let* ((new-args nil)
|
||
(seen-e nil)
|
||
(shift (lambda () (push (pop args) new-args))))
|
||
|
||
;; Pass all switches and -e scripts through.
|
||
(while (and args
|
||
(string-match "^-" (car args))
|
||
(not (equal "-" (car args)))
|
||
(not (equal "--" (car args))))
|
||
(when (equal "-e" (car args))
|
||
;; -e goes with the next arg, so shift one extra.
|
||
(or (funcall shift)
|
||
;; -e as the last arg is an error in Perl.
|
||
(error "No code specified for -e"))
|
||
(setq seen-e t))
|
||
(funcall shift))
|
||
|
||
(unless seen-e
|
||
(if (or (not args)
|
||
(string-match "^-" (car args)))
|
||
(error "Can't use stdin as the script to debug"))
|
||
;; This is the program name.
|
||
(funcall shift))
|
||
|
||
;; If -e specified, make sure there is a -- so -emacs is not taken
|
||
;; as -e macs.
|
||
(if (and args (equal "--" (car args)))
|
||
(funcall shift)
|
||
(and seen-e (push "--" new-args)))
|
||
|
||
(push "-emacs" new-args)
|
||
(while args
|
||
(funcall shift))
|
||
|
||
(nreverse new-args)))
|
||
|
||
;; There's no guarantee that Emacs will hand the filter the entire
|
||
;; marker at once; it could be broken up across several strings. We
|
||
;; might even receive a big chunk with several markers in it. If we
|
||
;; receive a chunk of text which looks like it might contain the
|
||
;; beginning of a marker, we save it here between calls to the
|
||
;; filter.
|
||
(defun gud-perldb-marker-filter (string)
|
||
(setq gud-marker-acc (concat gud-marker-acc string))
|
||
(let ((output ""))
|
||
|
||
;; Process all the complete markers in this chunk.
|
||
(while (string-match "\032\032\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\):.*\n"
|
||
gud-marker-acc)
|
||
(setq
|
||
|
||
;; Extract the frame position from the marker.
|
||
gud-last-frame
|
||
(cons (match-string 1 gud-marker-acc)
|
||
(string-to-int (match-string 3 gud-marker-acc)))
|
||
|
||
;; Append any text before the marker to the output we're going
|
||
;; to return - we don't include the marker in this text.
|
||
output (concat output
|
||
(substring gud-marker-acc 0 (match-beginning 0)))
|
||
|
||
;; Set the accumulator to the remaining text.
|
||
gud-marker-acc (substring gud-marker-acc (match-end 0))))
|
||
|
||
;; Does the remaining text look like it might end with the
|
||
;; beginning of another marker? If it does, then keep it in
|
||
;; gud-marker-acc until we receive the rest of it. Since we
|
||
;; know the full marker regexp above failed, it's pretty simple to
|
||
;; test for marker starts.
|
||
(if (string-match "\032.*\\'" gud-marker-acc)
|
||
(progn
|
||
;; Everything before the potential marker start can be output.
|
||
(setq output (concat output (substring gud-marker-acc
|
||
0 (match-beginning 0))))
|
||
|
||
;; Everything after, we save, to combine with later input.
|
||
(setq gud-marker-acc
|
||
(substring gud-marker-acc (match-beginning 0))))
|
||
|
||
(setq output (concat output gud-marker-acc)
|
||
gud-marker-acc ""))
|
||
|
||
output))
|
||
|
||
(defcustom gud-perldb-command-name "perl -d"
|
||
"Default command to execute a Perl script under debugger."
|
||
:type 'string
|
||
:group 'gud)
|
||
|
||
;;;###autoload
|
||
(defun perldb (command-line)
|
||
"Run perldb on program FILE in buffer *gud-FILE*.
|
||
The directory containing FILE becomes the initial working directory
|
||
and source-file directory for your debugger."
|
||
(interactive
|
||
(list (gud-query-cmdline 'perldb
|
||
(concat (or (buffer-file-name) "-e 0") " "))))
|
||
|
||
(gud-common-init command-line 'gud-perldb-massage-args
|
||
'gud-perldb-marker-filter)
|
||
(set (make-local-variable 'gud-minor-mode) 'perldb)
|
||
|
||
(gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-remove "B %l" "\C-d" "Remove breakpoint at current line")
|
||
(gud-def gud-step "s" "\C-s" "Step one source line with display.")
|
||
(gud-def gud-next "n" "\C-n" "Step one line (skip functions).")
|
||
(gud-def gud-cont "c" "\C-r" "Continue with display.")
|
||
; (gud-def gud-finish "finish" "\C-f" "Finish executing current function.")
|
||
; (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).")
|
||
; (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).")
|
||
(gud-def gud-print "p %e" "\C-p" "Evaluate perl expression at point.")
|
||
(gud-def gud-until "c %l" "\C-u" "Continue to current line.")
|
||
|
||
|
||
(setq comint-prompt-regexp "^ DB<+[0-9]+>+ ")
|
||
(setq paragraph-start comint-prompt-regexp)
|
||
(run-hooks 'perldb-mode-hook))
|
||
|
||
;; ======================================================================
|
||
;; pdb (Python debugger) functions
|
||
|
||
;; History of argument lists passed to pdb.
|
||
(defvar gud-pdb-history nil)
|
||
|
||
;; Last group is for return value, e.g. "> test.py(2)foo()->None"
|
||
;; Either file or function name may be omitted: "> <string>(0)?()"
|
||
(defvar gud-pdb-marker-regexp
|
||
"^> \\([-a-zA-Z0-9_/.:\\]*\\|<string>\\)(\\([0-9]+\\))\\([a-zA-Z0-9_]*\\|\\?\\)()\\(->[^\n]*\\)?\n")
|
||
(defvar gud-pdb-marker-regexp-file-group 1)
|
||
(defvar gud-pdb-marker-regexp-line-group 2)
|
||
(defvar gud-pdb-marker-regexp-fnname-group 3)
|
||
|
||
(defvar gud-pdb-marker-regexp-start "^> ")
|
||
|
||
;; There's no guarantee that Emacs will hand the filter the entire
|
||
;; marker at once; it could be broken up across several strings. We
|
||
;; might even receive a big chunk with several markers in it. If we
|
||
;; receive a chunk of text which looks like it might contain the
|
||
;; beginning of a marker, we save it here between calls to the
|
||
;; filter.
|
||
(defun gud-pdb-marker-filter (string)
|
||
(setq gud-marker-acc (concat gud-marker-acc string))
|
||
(let ((output ""))
|
||
|
||
;; Process all the complete markers in this chunk.
|
||
(while (string-match gud-pdb-marker-regexp gud-marker-acc)
|
||
(setq
|
||
|
||
;; Extract the frame position from the marker.
|
||
gud-last-frame
|
||
(let ((file (match-string gud-pdb-marker-regexp-file-group
|
||
gud-marker-acc))
|
||
(line (string-to-int
|
||
(match-string gud-pdb-marker-regexp-line-group
|
||
gud-marker-acc))))
|
||
(if (string-equal file "<string>")
|
||
gud-last-frame
|
||
(cons file line)))
|
||
|
||
;; Output everything instead of the below
|
||
output (concat output (substring gud-marker-acc 0 (match-end 0)))
|
||
;; ;; Append any text before the marker to the output we're going
|
||
;; ;; to return - we don't include the marker in this text.
|
||
;; output (concat output
|
||
;; (substring gud-marker-acc 0 (match-beginning 0)))
|
||
|
||
;; Set the accumulator to the remaining text.
|
||
gud-marker-acc (substring gud-marker-acc (match-end 0))))
|
||
|
||
;; Does the remaining text look like it might end with the
|
||
;; beginning of another marker? If it does, then keep it in
|
||
;; gud-marker-acc until we receive the rest of it. Since we
|
||
;; know the full marker regexp above failed, it's pretty simple to
|
||
;; test for marker starts.
|
||
(if (string-match gud-pdb-marker-regexp-start gud-marker-acc)
|
||
(progn
|
||
;; Everything before the potential marker start can be output.
|
||
(setq output (concat output (substring gud-marker-acc
|
||
0 (match-beginning 0))))
|
||
|
||
;; Everything after, we save, to combine with later input.
|
||
(setq gud-marker-acc
|
||
(substring gud-marker-acc (match-beginning 0))))
|
||
|
||
(setq output (concat output gud-marker-acc)
|
||
gud-marker-acc ""))
|
||
|
||
output))
|
||
|
||
(defcustom gud-pdb-command-name "pdb"
|
||
"File name for executing the Python debugger.
|
||
This should be an executable on your path, or an absolute file name."
|
||
:type 'string
|
||
:group 'gud)
|
||
|
||
;;;###autoload
|
||
(defun pdb (command-line)
|
||
"Run pdb on program FILE in buffer `*gud-FILE*'.
|
||
The directory containing FILE becomes the initial working directory
|
||
and source-file directory for your debugger."
|
||
(interactive
|
||
(list (gud-query-cmdline 'pdb)))
|
||
|
||
(gud-common-init command-line nil 'gud-pdb-marker-filter)
|
||
(set (make-local-variable 'gud-minor-mode) 'pdb)
|
||
|
||
(gud-def gud-break "break %l" "\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line")
|
||
(gud-def gud-step "step" "\C-s" "Step one source line with display.")
|
||
(gud-def gud-next "next" "\C-n" "Step one line (skip functions).")
|
||
(gud-def gud-cont "continue" "\C-r" "Continue with display.")
|
||
(gud-def gud-finish "return" "\C-f" "Finish executing current function.")
|
||
(gud-def gud-up "up" "<" "Up one stack frame.")
|
||
(gud-def gud-down "down" ">" "Down one stack frame.")
|
||
(gud-def gud-print "p %e" "\C-p" "Evaluate Python expression at point.")
|
||
;; Is this right?
|
||
(gud-def gud-statement "! %e" "\C-e" "Execute Python statement at point.")
|
||
|
||
;; (setq comint-prompt-regexp "^(.*pdb[+]?) *")
|
||
(setq comint-prompt-regexp "^(Pdb) *")
|
||
(setq paragraph-start comint-prompt-regexp)
|
||
(run-hooks 'pdb-mode-hook))
|
||
|
||
;; ======================================================================
|
||
;;
|
||
;; JDB support.
|
||
;;
|
||
;; AUTHOR: Derek Davies <ddavies@world.std.com>
|
||
;; Zoltan Kemenczy <zoltan@ieee.org;zkemenczy@rim.net>
|
||
;;
|
||
;; CREATED: Sun Feb 22 10:46:38 1998 Derek Davies.
|
||
;; UPDATED: Nov 11, 2001 Zoltan Kemenczy
|
||
;; Dec 10, 2002 Zoltan Kemenczy - added nested class support
|
||
;;
|
||
;; INVOCATION NOTES:
|
||
;;
|
||
;; You invoke jdb-mode with:
|
||
;;
|
||
;; M-x jdb <enter>
|
||
;;
|
||
;; It responds with:
|
||
;;
|
||
;; Run jdb (like this): jdb
|
||
;;
|
||
;; type any jdb switches followed by the name of the class you'd like to debug.
|
||
;; Supply a fully qualfied classname (these do not have the ".class" extension)
|
||
;; for the name of the class to debug (e.g. "COM.the-kind.ddavies.CoolClass").
|
||
;; See the known problems section below for restrictions when specifying jdb
|
||
;; command line switches (search forward for '-classpath').
|
||
;;
|
||
;; You should see something like the following:
|
||
;;
|
||
;; Current directory is ~/src/java/hello/
|
||
;; Initializing jdb...
|
||
;; 0xed2f6628:class(hello)
|
||
;; >
|
||
;;
|
||
;; To set an initial breakpoint try:
|
||
;;
|
||
;; > stop in hello.main
|
||
;; Breakpoint set in hello.main
|
||
;; >
|
||
;;
|
||
;; To execute the program type:
|
||
;;
|
||
;; > run
|
||
;; run hello
|
||
;;
|
||
;; Breakpoint hit: running ...
|
||
;; hello.main (hello:12)
|
||
;;
|
||
;; Type M-n to step over the current line and M-s to step into it. That,
|
||
;; along with the JDB 'help' command should get you started. The 'quit'
|
||
;; JDB command will get out out of the debugger. There is some truly
|
||
;; pathetic JDB documentation available at:
|
||
;;
|
||
;; http://java.sun.com/products/jdk/1.1/debugging/
|
||
;;
|
||
;; KNOWN PROBLEMS AND FIXME's:
|
||
;;
|
||
;; Not sure what happens with inner classes ... haven't tried them.
|
||
;;
|
||
;; Does not grok UNICODE id's. Only ASCII id's are supported.
|
||
;;
|
||
;; You must not put whitespace between "-classpath" and the path to
|
||
;; search for java classes even though it is required when invoking jdb
|
||
;; from the command line. See gud-jdb-massage-args for details.
|
||
;; The same applies for "-sourcepath".
|
||
;;
|
||
;; Note: The following applies only if `gud-jdb-use-classpath' is nil;
|
||
;; refer to the documentation of `gud-jdb-use-classpath' and
|
||
;; `gud-jdb-classpath',`gud-jdb-sourcepath' variables for information
|
||
;; on using the classpath for locating java source files.
|
||
;;
|
||
;; If any of the source files in the directories listed in
|
||
;; gud-jdb-directories won't parse you'll have problems. Make sure
|
||
;; every file ending in ".java" in these directories parses without error.
|
||
;;
|
||
;; All the .java files in the directories in gud-jdb-directories are
|
||
;; syntactically analyzed each time gud jdb is invoked. It would be
|
||
;; nice to keep as much information as possible between runs. It would
|
||
;; be really nice to analyze the files only as neccessary (when the
|
||
;; source needs to be displayed.) I'm not sure to what extent the former
|
||
;; can be accomplished and I'm not sure the latter can be done at all
|
||
;; since I don't know of any general way to tell which .class files are
|
||
;; defined by which .java file without analyzing all the .java files.
|
||
;; If anyone knows why JavaSoft didn't put the source file names in
|
||
;; debuggable .class files please clue me in so I find something else
|
||
;; to be spiteful and bitter about.
|
||
;;
|
||
;; ======================================================================
|
||
;; gud jdb variables and functions
|
||
|
||
(defcustom gud-jdb-command-name "jdb"
|
||
"Command that executes the Java debugger."
|
||
:type 'string
|
||
:group 'gud)
|
||
|
||
(defcustom gud-jdb-use-classpath t
|
||
"If non-nil, search for Java source files in classpath directories.
|
||
The list of directories to search is the value of `gud-jdb-classpath'.
|
||
The file pathname is obtained by converting the fully qualified
|
||
class information output by jdb to a relative pathname and appending
|
||
it to `gud-jdb-classpath' element by element until a match is found.
|
||
|
||
This method has a significant jdb startup time reduction advantage
|
||
since it does not require the scanning of all `gud-jdb-directories'
|
||
and parsing all Java files for class information.
|
||
|
||
Set to nil to use `gud-jdb-directories' to scan java sources for
|
||
class information on jdb startup (original method)."
|
||
:type 'boolean
|
||
:group 'gud)
|
||
|
||
(defvar gud-jdb-classpath nil
|
||
"Java/jdb classpath directories list.
|
||
If `gud-jdb-use-classpath' is non-nil, gud-jdb derives the `gud-jdb-classpath'
|
||
list automatically using the following methods in sequence
|
||
\(with subsequent successful steps overriding the results of previous
|
||
steps):
|
||
|
||
1) Read the CLASSPATH environment variable,
|
||
2) Read any \"-classpath\" argument used to run jdb,
|
||
or detected in jdb output (e.g. if jdb is run by a script
|
||
that echoes the actual jdb command before starting jdb)
|
||
3) Send a \"classpath\" command to jdb and scan jdb output for
|
||
classpath information if jdb is invoked with an \"-attach\" (to
|
||
an already running VM) argument (This case typically does not
|
||
have a \"-classpath\" command line argument - that is provided
|
||
to the VM when it is started).
|
||
|
||
Note that method 3 cannot be used with oldjdb (or Java 1 jdb) since
|
||
those debuggers do not support the classpath command. Use 1) or 2).")
|
||
|
||
(defvar gud-jdb-sourcepath nil
|
||
"Directory list provided by an (optional) \"-sourcepath\" option to jdb.
|
||
This list is prepended to `gud-jdb-classpath' to form the complete
|
||
list of directories searched for source files.")
|
||
|
||
(defvar gud-marker-acc-max-length 4000
|
||
"Maximum number of debugger output characters to keep.
|
||
This variable limits the size of `gud-marker-acc' which holds
|
||
the most recent debugger output history while searching for
|
||
source file information.")
|
||
|
||
(defvar gud-jdb-history nil
|
||
"History of argument lists passed to jdb.")
|
||
|
||
|
||
;; List of Java source file directories.
|
||
(defvar gud-jdb-directories (list ".")
|
||
"*A list of directories that gud jdb should search for source code.
|
||
The file names should be absolute, or relative to the current
|
||
directory.
|
||
|
||
The set of .java files residing in the directories listed are
|
||
syntactically analyzed to determine the classes they define and the
|
||
packages in which these classes belong. In this way gud jdb maps the
|
||
package-qualified class names output by the jdb debugger to the source
|
||
file from which the class originated. This allows gud mode to keep
|
||
the source code display in sync with the debugging session.")
|
||
|
||
(defvar gud-jdb-source-files nil
|
||
"List of the java source files for this debugging session.")
|
||
|
||
;; Association list of fully qualified class names (package + class name)
|
||
;; and their source files.
|
||
(defvar gud-jdb-class-source-alist nil
|
||
"Association list of fully qualified class names and source files.")
|
||
|
||
;; This is used to hold a source file during analysis.
|
||
(defvar gud-jdb-analysis-buffer nil)
|
||
|
||
(defvar gud-jdb-classpath-string nil
|
||
"Holds temporary classpath values.")
|
||
|
||
(defun gud-jdb-build-source-files-list (path extn)
|
||
"Return a list of java source files (absolute paths).
|
||
PATH gives the directories in which to search for files with
|
||
extension EXTN. Normally EXTN is given as the regular expression
|
||
\"\\.java$\" ."
|
||
(apply 'nconc (mapcar (lambda (d)
|
||
(when (file-directory-p d)
|
||
(directory-files d t extn nil)))
|
||
path)))
|
||
|
||
;; Move point past whitespace.
|
||
(defun gud-jdb-skip-whitespace ()
|
||
(skip-chars-forward " \n\r\t\014"))
|
||
|
||
;; Move point past a "// <eol>" type of comment.
|
||
(defun gud-jdb-skip-single-line-comment ()
|
||
(end-of-line))
|
||
|
||
;; Move point past a "/* */" or "/** */" type of comment.
|
||
(defun gud-jdb-skip-traditional-or-documentation-comment ()
|
||
(forward-char 2)
|
||
(catch 'break
|
||
(while (not (eobp))
|
||
(if (eq (following-char) ?*)
|
||
(progn
|
||
(forward-char)
|
||
(if (not (eobp))
|
||
(if (eq (following-char) ?/)
|
||
(progn
|
||
(forward-char)
|
||
(throw 'break nil)))))
|
||
(forward-char)))))
|
||
|
||
;; Move point past any number of consecutive whitespace chars and/or comments.
|
||
(defun gud-jdb-skip-whitespace-and-comments ()
|
||
(gud-jdb-skip-whitespace)
|
||
(catch 'done
|
||
(while t
|
||
(cond
|
||
((looking-at "//")
|
||
(gud-jdb-skip-single-line-comment)
|
||
(gud-jdb-skip-whitespace))
|
||
((looking-at "/\\*")
|
||
(gud-jdb-skip-traditional-or-documentation-comment)
|
||
(gud-jdb-skip-whitespace))
|
||
(t (throw 'done nil))))))
|
||
|
||
;; Move point past things that are id-like. The intent is to skip regular
|
||
;; id's, such as class or interface names as well as package and interface
|
||
;; names.
|
||
(defun gud-jdb-skip-id-ish-thing ()
|
||
(skip-chars-forward "^ /\n\r\t\014,;{"))
|
||
|
||
;; Move point past a string literal.
|
||
(defun gud-jdb-skip-string-literal ()
|
||
(forward-char)
|
||
(while (not (cond
|
||
((eq (following-char) ?\\)
|
||
(forward-char))
|
||
((eq (following-char) ?\042))))
|
||
(forward-char))
|
||
(forward-char))
|
||
|
||
;; Move point past a character literal.
|
||
(defun gud-jdb-skip-character-literal ()
|
||
(forward-char)
|
||
(while
|
||
(progn
|
||
(if (eq (following-char) ?\\)
|
||
(forward-char 2))
|
||
(not (eq (following-char) ?\')))
|
||
(forward-char))
|
||
(forward-char))
|
||
|
||
;; Move point past the following block. There may be (legal) cruft before
|
||
;; the block's opening brace. There must be a block or it's the end of life
|
||
;; in petticoat junction.
|
||
(defun gud-jdb-skip-block ()
|
||
|
||
;; Find the begining of the block.
|
||
(while
|
||
(not (eq (following-char) ?{))
|
||
|
||
;; Skip any constructs that can harbor literal block delimiter
|
||
;; characters and/or the delimiters for the constructs themselves.
|
||
(cond
|
||
((looking-at "//")
|
||
(gud-jdb-skip-single-line-comment))
|
||
((looking-at "/\\*")
|
||
(gud-jdb-skip-traditional-or-documentation-comment))
|
||
((eq (following-char) ?\042)
|
||
(gud-jdb-skip-string-literal))
|
||
((eq (following-char) ?\')
|
||
(gud-jdb-skip-character-literal))
|
||
(t (forward-char))))
|
||
|
||
;; Now at the begining of the block.
|
||
(forward-char)
|
||
|
||
;; Skip over the body of the block as well as the final brace.
|
||
(let ((open-level 1))
|
||
(while (not (eq open-level 0))
|
||
(cond
|
||
((looking-at "//")
|
||
(gud-jdb-skip-single-line-comment))
|
||
((looking-at "/\\*")
|
||
(gud-jdb-skip-traditional-or-documentation-comment))
|
||
((eq (following-char) ?\042)
|
||
(gud-jdb-skip-string-literal))
|
||
((eq (following-char) ?\')
|
||
(gud-jdb-skip-character-literal))
|
||
((eq (following-char) ?{)
|
||
(setq open-level (+ open-level 1))
|
||
(forward-char))
|
||
((eq (following-char) ?})
|
||
(setq open-level (- open-level 1))
|
||
(forward-char))
|
||
(t (forward-char))))))
|
||
|
||
;; Find the package and class definitions in Java source file FILE. Assumes
|
||
;; that FILE contains a legal Java program. BUF is a scratch buffer used
|
||
;; to hold the source during analysis.
|
||
(defun gud-jdb-analyze-source (buf file)
|
||
(let ((l nil))
|
||
(set-buffer buf)
|
||
(insert-file-contents file nil nil nil t)
|
||
(goto-char 0)
|
||
(catch 'abort
|
||
(let ((p ""))
|
||
(while (progn
|
||
(gud-jdb-skip-whitespace)
|
||
(not (eobp)))
|
||
(cond
|
||
|
||
;; Any number of semi's following a block is legal. Move point
|
||
;; past them. Note that comments and whitespace may be
|
||
;; interspersed as well.
|
||
((eq (following-char) ?\073)
|
||
(forward-char))
|
||
|
||
;; Move point past a single line comment.
|
||
((looking-at "//")
|
||
(gud-jdb-skip-single-line-comment))
|
||
|
||
;; Move point past a traditional or documentation comment.
|
||
((looking-at "/\\*")
|
||
(gud-jdb-skip-traditional-or-documentation-comment))
|
||
|
||
;; Move point past a package statement, but save the PackageName.
|
||
((looking-at "package")
|
||
(forward-char 7)
|
||
(gud-jdb-skip-whitespace-and-comments)
|
||
(let ((s (point)))
|
||
(gud-jdb-skip-id-ish-thing)
|
||
(setq p (concat (buffer-substring s (point)) "."))
|
||
(gud-jdb-skip-whitespace-and-comments)
|
||
(if (eq (following-char) ?\073)
|
||
(forward-char))))
|
||
|
||
;; Move point past an import statement.
|
||
((looking-at "import")
|
||
(forward-char 6)
|
||
(gud-jdb-skip-whitespace-and-comments)
|
||
(gud-jdb-skip-id-ish-thing)
|
||
(gud-jdb-skip-whitespace-and-comments)
|
||
(if (eq (following-char) ?\073)
|
||
(forward-char)))
|
||
|
||
;; Move point past the various kinds of ClassModifiers.
|
||
((looking-at "public")
|
||
(forward-char 6))
|
||
((looking-at "abstract")
|
||
(forward-char 8))
|
||
((looking-at "final")
|
||
(forward-char 5))
|
||
|
||
;; Move point past a ClassDeclaraction, but save the class
|
||
;; Identifier.
|
||
((looking-at "class")
|
||
(forward-char 5)
|
||
(gud-jdb-skip-whitespace-and-comments)
|
||
(let ((s (point)))
|
||
(gud-jdb-skip-id-ish-thing)
|
||
(setq
|
||
l (nconc l (list (concat p (buffer-substring s (point)))))))
|
||
(gud-jdb-skip-block))
|
||
|
||
;; Move point past an interface statement.
|
||
((looking-at "interface")
|
||
(forward-char 9)
|
||
(gud-jdb-skip-block))
|
||
|
||
;; Anything else means the input is invalid.
|
||
(t
|
||
(message (format "Error parsing file %s." file))
|
||
(throw 'abort nil))))))
|
||
l))
|
||
|
||
(defun gud-jdb-build-class-source-alist-for-file (file)
|
||
(mapcar
|
||
(lambda (c)
|
||
(cons c file))
|
||
(gud-jdb-analyze-source gud-jdb-analysis-buffer file)))
|
||
|
||
;; Return an alist of fully qualified classes and the source files
|
||
;; holding their definitions. SOURCES holds a list of all the source
|
||
;; files to examine.
|
||
(defun gud-jdb-build-class-source-alist (sources)
|
||
(setq gud-jdb-analysis-buffer (get-buffer-create " *gud-jdb-scratch*"))
|
||
(prog1
|
||
(apply
|
||
'nconc
|
||
(mapcar
|
||
'gud-jdb-build-class-source-alist-for-file
|
||
sources))
|
||
(kill-buffer gud-jdb-analysis-buffer)
|
||
(setq gud-jdb-analysis-buffer nil)))
|
||
|
||
;; Change what was given in the minibuffer to something that can be used to
|
||
;; invoke the debugger.
|
||
(defun gud-jdb-massage-args (file args)
|
||
;; The jdb executable must have whitespace between "-classpath" and
|
||
;; its value while gud-common-init expects all switch values to
|
||
;; follow the switch keyword without intervening whitespace. We
|
||
;; require that when the user enters the "-classpath" switch in the
|
||
;; EMACS minibuffer that they do so without the intervening
|
||
;; whitespace. This function adds it back (it's called after
|
||
;; gud-common-init). There are more switches like this (for
|
||
;; instance "-host" and "-password") but I don't care about them
|
||
;; yet.
|
||
(if args
|
||
(let (massaged-args user-error)
|
||
|
||
(while (and args (not user-error))
|
||
(cond
|
||
((setq user-error (string-match "-classpath$" (car args))))
|
||
((setq user-error (string-match "-sourcepath$" (car args))))
|
||
((string-match "-classpath\\(.+\\)" (car args))
|
||
(setq massaged-args
|
||
(append massaged-args
|
||
(list "-classpath"
|
||
(setq gud-jdb-classpath-string
|
||
(match-string 1 (car args)))))))
|
||
((string-match "-sourcepath\\(.+\\)" (car args))
|
||
(setq massaged-args
|
||
(append massaged-args
|
||
(list "-sourcepath"
|
||
(setq gud-jdb-sourcepath
|
||
(match-string 1 (car args)))))))
|
||
(t (setq massaged-args (append massaged-args (list (car args))))))
|
||
(setq args (cdr args)))
|
||
|
||
;; By this point the current directory is all screwed up. Maybe we
|
||
;; could fix things and re-invoke gud-common-init, but for now I think
|
||
;; issueing the error is good enough.
|
||
(if user-error
|
||
(progn
|
||
(kill-buffer (current-buffer))
|
||
(error "Error: Omit whitespace between '-classpath or -sourcepath' and its value")))
|
||
massaged-args)))
|
||
|
||
;; Search for an association with P, a fully qualified class name, in
|
||
;; gud-jdb-class-source-alist. The asssociation gives the fully
|
||
;; qualified file name of the source file which produced the class.
|
||
(defun gud-jdb-find-source-file (p)
|
||
(cdr (assoc p gud-jdb-class-source-alist)))
|
||
|
||
;; Note: Reset to this value every time a prompt is seen
|
||
(defvar gud-jdb-lowest-stack-level 999)
|
||
|
||
(defun gud-jdb-find-source-using-classpath (p)
|
||
"Find source file corresponding to fully qualified class p.
|
||
Convert p from jdb's output, converted to a pathname
|
||
relative to a classpath directory."
|
||
(save-match-data
|
||
(let
|
||
(;; Replace dots with slashes and append ".java" to generate file
|
||
;; name relative to classpath
|
||
(filename
|
||
(concat
|
||
(mapconcat 'identity
|
||
(split-string
|
||
;; Eliminate any subclass references in the class
|
||
;; name string. These start with a "$"
|
||
((lambda (x)
|
||
(if (string-match "$.*" x)
|
||
(replace-match "" t t x) p))
|
||
p)
|
||
"\\.") "/")
|
||
".java"))
|
||
(cplist (append gud-jdb-sourcepath gud-jdb-classpath))
|
||
found-file)
|
||
(while (and cplist
|
||
(not (setq found-file
|
||
(file-readable-p
|
||
(concat (car cplist) "/" filename)))))
|
||
(setq cplist (cdr cplist)))
|
||
(if found-file (concat (car cplist) "/" filename)))))
|
||
|
||
(defun gud-jdb-find-source (string)
|
||
"Alias for function used to locate source files.
|
||
Set to `gud-jdb-find-source-using-classpath' or `gud-jdb-find-source-file'
|
||
during jdb initialization depending on the value of
|
||
`gud-jdb-use-classpath'."
|
||
nil)
|
||
|
||
(defun gud-jdb-parse-classpath-string (string)
|
||
"Parse the classpath list and convert each item to an absolute pathname."
|
||
(mapcar (lambda (s) (if (string-match "[/\\]$" s)
|
||
(replace-match "" nil nil s) s))
|
||
(mapcar 'file-truename
|
||
(split-string
|
||
string
|
||
(concat "[ \t\n\r,\"" path-separator "]+")))))
|
||
|
||
;; See comentary for other debugger's marker filters - there you will find
|
||
;; important notes about STRING.
|
||
(defun gud-jdb-marker-filter (string)
|
||
|
||
;; Build up the accumulator.
|
||
(setq gud-marker-acc
|
||
(if gud-marker-acc
|
||
(concat gud-marker-acc string)
|
||
string))
|
||
|
||
;; Look for classpath information until gud-jdb-classpath-string is found
|
||
;; (interactive, multiple settings of classpath from jdb
|
||
;; not supported/followed)
|
||
(if (and gud-jdb-use-classpath
|
||
(not gud-jdb-classpath-string)
|
||
(or (string-match "classpath:[ \t[]+\\([^]]+\\)" gud-marker-acc)
|
||
(string-match "-classpath[ \t\"]+\\([^ \"]+\\)" gud-marker-acc)))
|
||
(setq gud-jdb-classpath
|
||
(gud-jdb-parse-classpath-string
|
||
(setq gud-jdb-classpath-string
|
||
(match-string 1 gud-marker-acc)))))
|
||
|
||
;; We process STRING from left to right. Each time through the
|
||
;; following loop we process at most one marker. After we've found a
|
||
;; marker, delete gud-marker-acc up to and including the match
|
||
(let (file-found)
|
||
;; Process each complete marker in the input.
|
||
(while
|
||
|
||
;; Do we see a marker?
|
||
(string-match
|
||
;; jdb puts out a string of the following form when it
|
||
;; hits a breakpoint:
|
||
;;
|
||
;; <fully-qualified-class><method> (<class>:<line-number>)
|
||
;;
|
||
;; <fully-qualified-class>'s are composed of Java ID's
|
||
;; separated by periods. <method> and <class> are
|
||
;; also Java ID's. <method> begins with a period and
|
||
;; may contain less-than and greater-than (constructors,
|
||
;; for instance, are called <init> in the symbol table.)
|
||
;; Java ID's begin with a letter followed by letters
|
||
;; and/or digits. The set of letters includes underscore
|
||
;; and dollar sign.
|
||
;;
|
||
;; The first group matches <fully-qualified-class>,
|
||
;; the second group matches <class> and the third group
|
||
;; matches <line-number>. We don't care about using
|
||
;; <method> so we don't "group" it.
|
||
;;
|
||
;; FIXME: Java ID's are UNICODE strings, this matches ASCII
|
||
;; ID's only.
|
||
;;
|
||
;; The "," in the last square-bracket is necessary because of
|
||
;; Sun's total disrespect for backwards compatibility in
|
||
;; reported line numbers from jdb - starting in 1.4.0 they
|
||
;; introduced a comma at the thousands position (how
|
||
;; ingenious!)
|
||
|
||
"\\(\[[0-9]+\] \\)*\\([a-zA-Z0-9.$_]+\\)\\.[a-zA-Z0-9$_<>(),]+ \
|
||
\\(([a-zA-Z0-9.$_]+:\\|line=\\)\\([0-9,]+\\)"
|
||
gud-marker-acc)
|
||
|
||
;; A good marker is one that:
|
||
;; 1) does not have a "[n] " prefix (not part of a stack backtrace)
|
||
;; 2) does have an "[n] " prefix and n is the lowest prefix seen
|
||
;; since the last prompt
|
||
;; Figure out the line on which to position the debugging arrow.
|
||
;; Return the info as a cons of the form:
|
||
;;
|
||
;; (<file-name> . <line-number>) .
|
||
(if (if (match-beginning 1)
|
||
(let (n)
|
||
(setq n (string-to-int (substring
|
||
gud-marker-acc
|
||
(1+ (match-beginning 1))
|
||
(- (match-end 1) 2))))
|
||
(if (< n gud-jdb-lowest-stack-level)
|
||
(progn (setq gud-jdb-lowest-stack-level n) t)))
|
||
t)
|
||
(if (setq file-found
|
||
(gud-jdb-find-source (match-string 2 gud-marker-acc)))
|
||
(setq gud-last-frame
|
||
(cons file-found
|
||
(string-to-int
|
||
(let
|
||
((numstr (match-string 4 gud-marker-acc)))
|
||
(if (string-match "," numstr)
|
||
(replace-match "" nil nil numstr)
|
||
numstr)))))
|
||
(message "Could not find source file.")))
|
||
|
||
;; Set the accumulator to the remaining text.
|
||
(setq gud-marker-acc (substring gud-marker-acc (match-end 0))))
|
||
|
||
(if (string-match comint-prompt-regexp gud-marker-acc)
|
||
(setq gud-jdb-lowest-stack-level 999)))
|
||
|
||
;; Do not allow gud-marker-acc to grow without bound. If the source
|
||
;; file information is not within the last 3/4
|
||
;; gud-marker-acc-max-length characters, well,...
|
||
(if (> (length gud-marker-acc) gud-marker-acc-max-length)
|
||
(setq gud-marker-acc
|
||
(substring gud-marker-acc
|
||
(- (/ (* gud-marker-acc-max-length 3) 4)))))
|
||
|
||
;; We don't filter any debugger output so just return what we were given.
|
||
string)
|
||
|
||
(defvar gud-jdb-command-name "jdb" "Command that executes the Java debugger.")
|
||
|
||
;;;###autoload
|
||
(defun jdb (command-line)
|
||
"Run jdb with command line COMMAND-LINE in a buffer.
|
||
The buffer is named \"*gud*\" if no initial class is given or
|
||
\"*gud-<initial-class-basename>*\" if there is. If the \"-classpath\"
|
||
switch is given, omit all whitespace between it and its value.
|
||
|
||
See `gud-jdb-use-classpath' and `gud-jdb-classpath' documentation for
|
||
information on how jdb accesses source files. Alternatively (if
|
||
`gud-jdb-use-classpath' is nil), see `gud-jdb-directories' for the
|
||
original source file access method.
|
||
|
||
For general information about commands available to control jdb from
|
||
gud, see `gud-mode'."
|
||
(interactive
|
||
(list (gud-query-cmdline 'jdb)))
|
||
(setq gud-jdb-classpath nil)
|
||
(setq gud-jdb-sourcepath nil)
|
||
|
||
;; Set gud-jdb-classpath from the CLASSPATH environment variable,
|
||
;; if CLASSPATH is set.
|
||
(setq gud-jdb-classpath-string (getenv "CLASSPATH"))
|
||
(if gud-jdb-classpath-string
|
||
(setq gud-jdb-classpath
|
||
(gud-jdb-parse-classpath-string gud-jdb-classpath-string)))
|
||
(setq gud-jdb-classpath-string nil) ; prepare for next
|
||
|
||
(gud-common-init command-line 'gud-jdb-massage-args
|
||
'gud-jdb-marker-filter)
|
||
(set (make-local-variable 'gud-minor-mode) 'jdb)
|
||
|
||
;; If a -classpath option was provided, set gud-jdb-classpath
|
||
(if gud-jdb-classpath-string
|
||
(setq gud-jdb-classpath
|
||
(gud-jdb-parse-classpath-string gud-jdb-classpath-string)))
|
||
(setq gud-jdb-classpath-string nil) ; prepare for next
|
||
;; If a -sourcepath option was provided, parse it
|
||
(if gud-jdb-sourcepath
|
||
(setq gud-jdb-sourcepath
|
||
(gud-jdb-parse-classpath-string gud-jdb-sourcepath)))
|
||
|
||
(gud-def gud-break "stop at %c:%l" "\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-remove "clear %c:%l" "\C-d" "Remove breakpoint at current line")
|
||
(gud-def gud-step "step" "\C-s" "Step one source line with display.")
|
||
(gud-def gud-next "next" "\C-n" "Step one line (skip functions).")
|
||
(gud-def gud-cont "cont" "\C-r" "Continue with display.")
|
||
(gud-def gud-finish "step up" "\C-f" "Continue until current method returns.")
|
||
(gud-def gud-up "up\C-Mwhere" "<" "Up one stack frame.")
|
||
(gud-def gud-down "down\C-Mwhere" ">" "Up one stack frame.")
|
||
(gud-def gud-run "run" nil "Run the program.") ;if VM start using jdb
|
||
|
||
(setq comint-prompt-regexp "^> \\|^[^ ]+\\[[0-9]+\\] ")
|
||
(setq paragraph-start comint-prompt-regexp)
|
||
(run-hooks 'jdb-mode-hook)
|
||
|
||
(if gud-jdb-use-classpath
|
||
;; Get the classpath information from the debugger
|
||
(progn
|
||
(if (string-match "-attach" command-line)
|
||
(gud-call "classpath"))
|
||
(fset 'gud-jdb-find-source
|
||
'gud-jdb-find-source-using-classpath))
|
||
|
||
;; Else create and bind the class/source association list as well
|
||
;; as the source file list.
|
||
(setq gud-jdb-class-source-alist
|
||
(gud-jdb-build-class-source-alist
|
||
(setq gud-jdb-source-files
|
||
(gud-jdb-build-source-files-list gud-jdb-directories
|
||
"\\.java$"))))
|
||
(fset 'gud-jdb-find-source 'gud-jdb-find-source-file)))
|
||
|
||
|
||
;; ======================================================================
|
||
;;
|
||
;; BASHDB support. See http://bashdb.sourceforge.net
|
||
;;
|
||
;; AUTHOR: Rocky Bernstein <rocky@panix.com>
|
||
;;
|
||
;; CREATED: Sun Nov 10 10:46:38 2002 Rocky Bernstein.
|
||
;;
|
||
;; INVOCATION NOTES:
|
||
;;
|
||
;; You invoke bashdb-mode with:
|
||
;;
|
||
;; M-x bashdb <enter>
|
||
;;
|
||
;; It responds with:
|
||
;;
|
||
;; Run bashdb (like this): bash
|
||
;;
|
||
|
||
;; History of argument lists passed to bashdb.
|
||
(defvar gud-bashdb-history nil)
|
||
|
||
;; Convert a command line as would be typed normally to run a script
|
||
;; into one that invokes an Emacs-enabled debugging session.
|
||
;; "--debugger" in inserted as the first switch.
|
||
|
||
;; There's no guarantee that Emacs will hand the filter the entire
|
||
;; marker at once; it could be broken up across several strings. We
|
||
;; might even receive a big chunk with several markers in it. If we
|
||
;; receive a chunk of text which looks like it might contain the
|
||
;; beginning of a marker, we save it here between calls to the
|
||
;; filter.
|
||
(defun gud-bashdb-marker-filter (string)
|
||
(setq gud-marker-acc (concat gud-marker-acc string))
|
||
(let ((output ""))
|
||
|
||
;; Process all the complete markers in this chunk.
|
||
;; Format of line looks like this:
|
||
;; (/etc/init.d/ntp.init:16):
|
||
;; but we also allow DOS drive letters
|
||
;; (d:/etc/init.d/ntp.init:16):
|
||
(while (string-match "\\(^\\|\n\\)(\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\)):.*\n"
|
||
gud-marker-acc)
|
||
(setq
|
||
|
||
;; Extract the frame position from the marker.
|
||
gud-last-frame
|
||
(cons (match-string 2 gud-marker-acc)
|
||
(string-to-int (match-string 4 gud-marker-acc)))
|
||
|
||
;; Append any text before the marker to the output we're going
|
||
;; to return - we don't include the marker in this text.
|
||
output (concat output
|
||
(substring gud-marker-acc 0 (match-beginning 0)))
|
||
|
||
;; Set the accumulator to the remaining text.
|
||
gud-marker-acc (substring gud-marker-acc (match-end 0))))
|
||
|
||
;; Does the remaining text look like it might end with the
|
||
;; beginning of another marker? If it does, then keep it in
|
||
;; gud-marker-acc until we receive the rest of it. Since we
|
||
;; know the full marker regexp above failed, it's pretty simple to
|
||
;; test for marker starts.
|
||
(if (string-match "\032.*\\'" gud-marker-acc)
|
||
(progn
|
||
;; Everything before the potential marker start can be output.
|
||
(setq output (concat output (substring gud-marker-acc
|
||
0 (match-beginning 0))))
|
||
|
||
;; Everything after, we save, to combine with later input.
|
||
(setq gud-marker-acc
|
||
(substring gud-marker-acc (match-beginning 0))))
|
||
|
||
(setq output (concat output gud-marker-acc)
|
||
gud-marker-acc ""))
|
||
|
||
output))
|
||
|
||
(defcustom gud-bashdb-command-name "bash --debugger"
|
||
"File name for executing bash debugger."
|
||
:type 'string
|
||
:group 'gud)
|
||
|
||
;;;###autoload
|
||
(defun bashdb (command-line)
|
||
"Run bashdb on program FILE in buffer *gud-FILE*.
|
||
The directory containing FILE becomes the initial working directory
|
||
and source-file directory for your debugger."
|
||
(interactive
|
||
(list (read-from-minibuffer "Run bashdb (like this): "
|
||
(if (consp gud-bashdb-history)
|
||
(car gud-bashdb-history)
|
||
(concat gud-bashdb-command-name
|
||
" "))
|
||
gud-minibuffer-local-map nil
|
||
'(gud-bashdb-history . 1))))
|
||
|
||
(gud-common-init command-line nil 'gud-bashdb-marker-filter)
|
||
|
||
(set (make-local-variable 'gud-minor-mode) 'bashdb)
|
||
|
||
(gud-def gud-break "break %l" "\C-b" "Set breakpoint at current line.")
|
||
(gud-def gud-tbreak "tbreak %l" "\C-t" "Set temporary breakpoint at current line.")
|
||
(gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line")
|
||
(gud-def gud-step "step" "\C-s" "Step one source line with display.")
|
||
(gud-def gud-next "next" "\C-n" "Step one line (skip functions).")
|
||
(gud-def gud-cont "continue" "\C-r" "Continue with display.")
|
||
(gud-def gud-finish "finish" "\C-f" "Finish executing current function.")
|
||
(gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).")
|
||
(gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).")
|
||
(gud-def gud-print "x %e" "\C-p" "Evaluate BASH expression at point.")
|
||
|
||
;; Is this right?
|
||
(gud-def gud-statement "eval %e" "\C-e" "Execute BASH statement at point.")
|
||
|
||
(setq comint-prompt-regexp "^bashdb<+(*[0-9]+)*>+ ")
|
||
(setq paragraph-start comint-prompt-regexp)
|
||
(run-hooks 'bashdb-mode-hook)
|
||
)
|
||
|
||
;;
|
||
;; End of debugger-specific information
|
||
;;
|
||
|
||
|
||
;; When we send a command to the debugger via gud-call, it's annoying
|
||
;; to see the command and the new prompt inserted into the debugger's
|
||
;; buffer; we have other ways of knowing the command has completed.
|
||
;;
|
||
;; If the buffer looks like this:
|
||
;; --------------------
|
||
;; (gdb) set args foo bar
|
||
;; (gdb) -!-
|
||
;; --------------------
|
||
;; (the -!- marks the location of point), and we type `C-x SPC' in a
|
||
;; source file to set a breakpoint, we want the buffer to end up like
|
||
;; this:
|
||
;; --------------------
|
||
;; (gdb) set args foo bar
|
||
;; Breakpoint 1 at 0x92: file make-docfile.c, line 49.
|
||
;; (gdb) -!-
|
||
;; --------------------
|
||
;; Essentially, the old prompt is deleted, and the command's output
|
||
;; and the new prompt take its place.
|
||
;;
|
||
;; Not echoing the command is easy enough; you send it directly using
|
||
;; process-send-string, and it never enters the buffer. However,
|
||
;; getting rid of the old prompt is trickier; you don't want to do it
|
||
;; when you send the command, since that will result in an annoying
|
||
;; flicker as the prompt is deleted, redisplay occurs while Emacs
|
||
;; waits for a response from the debugger, and the new prompt is
|
||
;; inserted. Instead, we'll wait until we actually get some output
|
||
;; from the subprocess before we delete the prompt. If the command
|
||
;; produced no output other than a new prompt, that prompt will most
|
||
;; likely be in the first chunk of output received, so we will delete
|
||
;; the prompt and then replace it with an identical one. If the
|
||
;; command produces output, the prompt is moving anyway, so the
|
||
;; flicker won't be annoying.
|
||
;;
|
||
;; So - when we want to delete the prompt upon receipt of the next
|
||
;; chunk of debugger output, we position gud-delete-prompt-marker at
|
||
;; the start of the prompt; the process filter will notice this, and
|
||
;; delete all text between it and the process output marker. If
|
||
;; gud-delete-prompt-marker points nowhere, we leave the current
|
||
;; prompt alone.
|
||
(defvar gud-delete-prompt-marker nil)
|
||
|
||
|
||
(put 'gud-mode 'mode-class 'special)
|
||
|
||
(define-derived-mode gud-mode comint-mode "Debugger"
|
||
"Major mode for interacting with an inferior debugger process.
|
||
|
||
You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx,
|
||
M-x perldb, M-x xdb, or M-x jdb. Each entry point finishes by executing a
|
||
hook; `gdb-mode-hook', `sdb-mode-hook', `dbx-mode-hook',
|
||
`perldb-mode-hook', `xdb-mode-hook', or `jdb-mode-hook' respectively.
|
||
|
||
After startup, the following commands are available in both the GUD
|
||
interaction buffer and any source buffer GUD visits due to a breakpoint stop
|
||
or step operation:
|
||
|
||
\\[gud-break] sets a breakpoint at the current file and line. In the
|
||
GUD buffer, the current file and line are those of the last breakpoint or
|
||
step. In a source buffer, they are the buffer's file and current line.
|
||
|
||
\\[gud-remove] removes breakpoints on the current file and line.
|
||
|
||
\\[gud-refresh] displays in the source window the last line referred to
|
||
in the gud buffer.
|
||
|
||
\\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line,
|
||
step-one-line (not entering function calls), and step-one-instruction
|
||
and then update the source window with the current file and position.
|
||
\\[gud-cont] continues execution.
|
||
|
||
\\[gud-print] tries to find the largest C lvalue or function-call expression
|
||
around point, and sends it to the debugger for value display.
|
||
|
||
The above commands are common to all supported debuggers except xdb which
|
||
does not support stepping instructions.
|
||
|
||
Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break],
|
||
except that the breakpoint is temporary; that is, it is removed when
|
||
execution stops on it.
|
||
|
||
Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack
|
||
frame. \\[gud-down] drops back down through one.
|
||
|
||
If you are using gdb or xdb, \\[gud-finish] runs execution to the return from
|
||
the current function and stops.
|
||
|
||
All the keystrokes above are accessible in the GUD buffer
|
||
with the prefix C-c, and in all buffers through the prefix C-x C-a.
|
||
|
||
All pre-defined functions for which the concept make sense repeat
|
||
themselves the appropriate number of times if you give a prefix
|
||
argument.
|
||
|
||
You may use the `gud-def' macro in the initialization hook to define other
|
||
commands.
|
||
|
||
Other commands for interacting with the debugger process are inherited from
|
||
comint mode, which see."
|
||
(setq mode-line-process '(":%s"))
|
||
(define-key (current-local-map) "\C-c\C-l" 'gud-refresh)
|
||
(set (make-local-variable 'gud-last-frame) nil)
|
||
(set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
|
||
(make-local-variable 'comint-prompt-regexp)
|
||
;; Don't put repeated commands in command history many times.
|
||
(set (make-local-variable 'comint-input-ignoredups) t)
|
||
(make-local-variable 'paragraph-start)
|
||
(set (make-local-variable 'gud-delete-prompt-marker) (make-marker)))
|
||
|
||
;; Cause our buffers to be displayed, by default,
|
||
;; in the selected window.
|
||
;;;###autoload (add-hook 'same-window-regexps "\\*gud-.*\\*\\(\\|<[0-9]+>\\)")
|
||
|
||
(defcustom gud-chdir-before-run t
|
||
"Non-nil if GUD should `cd' to the debugged executable."
|
||
:group 'gud
|
||
:type 'boolean)
|
||
|
||
(defvar gud-target-name "--unknown--"
|
||
"The apparent name of the program being debugged in a gud buffer.")
|
||
|
||
;; Perform initializations common to all debuggers.
|
||
;; The first arg is the specified command line,
|
||
;; which starts with the program to debug.
|
||
;; The other three args specify the values to use
|
||
;; for local variables in the debugger buffer.
|
||
(defun gud-common-init (command-line massage-args marker-filter
|
||
&optional find-file)
|
||
(let* ((words (split-string command-line))
|
||
(program (car words))
|
||
(dir default-directory)
|
||
;; Extract the file name from WORDS
|
||
;; and put t in its place.
|
||
;; Later on we will put the modified file name arg back there.
|
||
(file-word (let ((w (cdr words)))
|
||
(while (and w (= ?- (aref (car w) 0)))
|
||
(setq w (cdr w)))
|
||
(and w
|
||
(prog1 (car w)
|
||
(setcar w t)))))
|
||
(file-subst
|
||
(and file-word (substitute-in-file-name file-word)))
|
||
(args (cdr words))
|
||
;; If a directory was specified, expand the file name.
|
||
;; Otherwise, don't expand it, so GDB can use the PATH.
|
||
;; A file name without directory is literally valid
|
||
;; only if the file exists in ., and in that case,
|
||
;; omitting the expansion here has no visible effect.
|
||
(file (and file-word
|
||
(if (file-name-directory file-subst)
|
||
(expand-file-name file-subst)
|
||
file-subst)))
|
||
(filepart (and file-word (concat "-" (file-name-nondirectory file)))))
|
||
(pop-to-buffer (concat "*gud" filepart "*"))
|
||
;; Set the dir, in case the buffer already existed with a different dir.
|
||
(setq default-directory dir)
|
||
;; Set default-directory to the file's directory.
|
||
(and file-word
|
||
gud-chdir-before-run
|
||
;; Don't set default-directory if no directory was specified.
|
||
;; In that case, either the file is found in the current directory,
|
||
;; in which case this setq is a no-op,
|
||
;; or it is found by searching PATH,
|
||
;; in which case we don't know what directory it was found in.
|
||
(file-name-directory file)
|
||
(setq default-directory (file-name-directory file)))
|
||
(or (bolp) (newline))
|
||
(insert "Current directory is " default-directory "\n")
|
||
;; Put the substituted and expanded file name back in its place.
|
||
(let ((w args))
|
||
(while (and w (not (eq (car w) t)))
|
||
(setq w (cdr w)))
|
||
(if w
|
||
(setcar w file)))
|
||
(apply 'make-comint (concat "gud" filepart) program nil
|
||
(if massage-args (funcall massage-args file args) args))
|
||
;; Since comint clobbered the mode, we don't set it until now.
|
||
(gud-mode)
|
||
(set (make-local-variable 'gud-target-name)
|
||
(and file-word (file-name-nondirectory file))))
|
||
(set (make-local-variable 'gud-marker-filter) marker-filter)
|
||
(if find-file (set (make-local-variable 'gud-find-file) find-file))
|
||
(setq gud-running nil)
|
||
(setq gud-last-last-frame nil)
|
||
|
||
(set-process-filter (get-buffer-process (current-buffer)) 'gud-filter)
|
||
(set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel)
|
||
(gud-set-buffer))
|
||
|
||
(defun gud-set-buffer ()
|
||
(when (eq major-mode 'gud-mode)
|
||
(setq gud-comint-buffer (current-buffer))))
|
||
|
||
(defvar gud-filter-defer-flag nil
|
||
"Non-nil means don't process anything from the debugger right now.
|
||
It is saved for when this flag is not set.")
|
||
|
||
(defvar gud-filter-pending-text nil
|
||
"Non-nil means this is text that has been saved for later in `gud-filter'.")
|
||
|
||
;; These functions are responsible for inserting output from your debugger
|
||
;; into the buffer. The hard work is done by the method that is
|
||
;; the value of gud-marker-filter.
|
||
|
||
(defun gud-filter (proc string)
|
||
;; Here's where the actual buffer insertion is done
|
||
(let (output process-window)
|
||
(if (buffer-name (process-buffer proc))
|
||
(if gud-filter-defer-flag
|
||
;; If we can't process any text now,
|
||
;; save it for later.
|
||
(setq gud-filter-pending-text
|
||
(concat (or gud-filter-pending-text "") string))
|
||
|
||
;; If we have to ask a question during the processing,
|
||
;; defer any additional text that comes from the debugger
|
||
;; during that time.
|
||
(let ((gud-filter-defer-flag t))
|
||
;; Process now any text we previously saved up.
|
||
(if gud-filter-pending-text
|
||
(setq string (concat gud-filter-pending-text string)
|
||
gud-filter-pending-text nil))
|
||
|
||
(with-current-buffer (process-buffer proc)
|
||
;; If we have been so requested, delete the debugger prompt.
|
||
(save-restriction
|
||
(widen)
|
||
(if (marker-buffer gud-delete-prompt-marker)
|
||
(progn
|
||
(delete-region (process-mark proc)
|
||
gud-delete-prompt-marker)
|
||
(set-marker gud-delete-prompt-marker nil)))
|
||
;; Save the process output, checking for source file markers.
|
||
(setq output (gud-marker-filter string))
|
||
;; Check for a filename-and-line number.
|
||
;; Don't display the specified file
|
||
;; unless (1) point is at or after the position where output appears
|
||
;; and (2) this buffer is on the screen.
|
||
(setq process-window
|
||
(and gud-last-frame
|
||
(>= (point) (process-mark proc))
|
||
(get-buffer-window (current-buffer)))))
|
||
|
||
;; Let the comint filter do the actual insertion.
|
||
;; That lets us inherit various comint features.
|
||
(comint-output-filter proc output))
|
||
|
||
;; Put the arrow on the source line.
|
||
;; This must be outside of the save-excursion
|
||
;; in case the source file is our current buffer.
|
||
(if process-window
|
||
(save-selected-window
|
||
(select-window process-window)
|
||
(gud-display-frame))
|
||
;; We have to be in the proper buffer, (process-buffer proc),
|
||
;; but not in a save-excursion, because that would restore point.
|
||
(let ((old-buf (current-buffer)))
|
||
(set-buffer (process-buffer proc))
|
||
(unwind-protect
|
||
(gud-display-frame)
|
||
(set-buffer old-buf)))))
|
||
|
||
;; If we deferred text that arrived during this processing,
|
||
;; handle it now.
|
||
(if gud-filter-pending-text
|
||
(gud-filter proc ""))))))
|
||
|
||
(defvar gud-minor-mode-type nil)
|
||
|
||
(defun gud-sentinel (proc msg)
|
||
(cond ((null (buffer-name (process-buffer proc)))
|
||
;; buffer killed
|
||
;; Stop displaying an arrow in a source file.
|
||
(setq overlay-arrow-position nil)
|
||
(set-process-buffer proc nil)
|
||
(if (eq gud-minor-mode-type 'gdba)
|
||
(gdb-reset)
|
||
(gud-reset)))
|
||
((memq (process-status proc) '(signal exit))
|
||
;; Stop displaying an arrow in a source file.
|
||
(setq overlay-arrow-position nil)
|
||
(with-current-buffer gud-comint-buffer
|
||
(if (eq gud-minor-mode 'gdba)
|
||
(gdb-reset)
|
||
(gud-reset)))
|
||
(let* ((obuf (current-buffer)))
|
||
;; save-excursion isn't the right thing if
|
||
;; process-buffer is current-buffer
|
||
(unwind-protect
|
||
(progn
|
||
;; Write something in *compilation* and hack its mode line,
|
||
(set-buffer (process-buffer proc))
|
||
;; Fix the mode line.
|
||
(setq mode-line-process
|
||
(concat ":"
|
||
(symbol-name (process-status proc))))
|
||
(force-mode-line-update)
|
||
(if (eobp)
|
||
(insert ?\n mode-name " " msg)
|
||
(save-excursion
|
||
(goto-char (point-max))
|
||
(insert ?\n mode-name " " msg)))
|
||
;; If buffer and mode line will show that the process
|
||
;; is dead, we can delete it now. Otherwise it
|
||
;; will stay around until M-x list-processes.
|
||
(delete-process proc))
|
||
;; Restore old buffer, but don't restore old point
|
||
;; if obuf is the gud buffer.
|
||
(set-buffer obuf))))))
|
||
|
||
(defun gud-kill-buffer-hook ()
|
||
(if gud-minor-mode
|
||
(setq gud-minor-mode-type gud-minor-mode)))
|
||
|
||
(add-hook 'kill-buffer-hook 'gud-kill-buffer-hook)
|
||
|
||
(defun gud-reset ()
|
||
(dolist (buffer (buffer-list))
|
||
(if (not (eq buffer gud-comint-buffer))
|
||
(save-excursion
|
||
(set-buffer buffer)
|
||
(when gud-minor-mode
|
||
(setq gud-minor-mode nil)
|
||
(kill-local-variable 'tool-bar-map))))))
|
||
|
||
(defun gud-display-frame ()
|
||
"Find and obey the last filename-and-line marker from the debugger.
|
||
Obeying it means displaying in another window the specified file and line."
|
||
(interactive)
|
||
(when gud-last-frame
|
||
(gud-set-buffer)
|
||
(gud-display-line (car gud-last-frame) (cdr gud-last-frame))
|
||
(setq gud-last-last-frame gud-last-frame
|
||
gud-last-frame nil)))
|
||
|
||
;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen
|
||
;; and that its line LINE is visible.
|
||
;; Put the overlay-arrow on the line LINE in that buffer.
|
||
;; Most of the trickiness in here comes from wanting to preserve the current
|
||
;; region-restriction if that's possible. We use an explicit display-buffer
|
||
;; to get around the fact that this is called inside a save-excursion.
|
||
|
||
(defun gud-display-line (true-file line)
|
||
(let* ((last-nonmenu-event t) ; Prevent use of dialog box for questions.
|
||
(buffer
|
||
(with-current-buffer gud-comint-buffer
|
||
(gud-find-file true-file)))
|
||
(window (and buffer (or (get-buffer-window buffer)
|
||
(if (eq gud-minor-mode 'gdba)
|
||
(gdb-display-source-buffer buffer)
|
||
(display-buffer buffer)))))
|
||
(pos))
|
||
(if buffer
|
||
(progn
|
||
(with-current-buffer buffer
|
||
(unless (or (verify-visited-file-modtime buffer) gud-keep-buffer)
|
||
(if (yes-or-no-p
|
||
(format "File %s changed on disk. Reread from disk? "
|
||
(buffer-name)))
|
||
(revert-buffer t t)
|
||
(setq gud-keep-buffer t)))
|
||
(save-restriction
|
||
(widen)
|
||
(goto-line line)
|
||
(setq pos (point))
|
||
(setq overlay-arrow-string "=>")
|
||
(or overlay-arrow-position
|
||
(setq overlay-arrow-position (make-marker)))
|
||
(set-marker overlay-arrow-position (point) (current-buffer)))
|
||
(cond ((or (< pos (point-min)) (> pos (point-max)))
|
||
(widen)
|
||
(goto-char pos))))
|
||
(if window (set-window-point window overlay-arrow-position))))))
|
||
|
||
;; The gud-call function must do the right thing whether its invoking
|
||
;; keystroke is from the GUD buffer itself (via major-mode binding)
|
||
;; or a C buffer. In the former case, we want to supply data from
|
||
;; gud-last-frame. Here's how we do it:
|
||
|
||
(defun gud-format-command (str arg)
|
||
(let ((insource (not (eq (current-buffer) gud-comint-buffer)))
|
||
(frame (or gud-last-frame gud-last-last-frame))
|
||
result)
|
||
(while (and str (string-match "\\([^%]*\\)%\\([adeflpc]\\)" str))
|
||
(let ((key (string-to-char (match-string 2 str)))
|
||
subst)
|
||
(cond
|
||
((eq key ?f)
|
||
(setq subst (file-name-nondirectory (if insource
|
||
(buffer-file-name)
|
||
(car frame)))))
|
||
((eq key ?F)
|
||
(setq subst (file-name-sans-extension
|
||
(file-name-nondirectory (if insource
|
||
(buffer-file-name)
|
||
(car frame))))))
|
||
((eq key ?d)
|
||
(setq subst (file-name-directory (if insource
|
||
(buffer-file-name)
|
||
(car frame)))))
|
||
((eq key ?l)
|
||
(setq subst (int-to-string
|
||
(if insource
|
||
(save-restriction
|
||
(widen)
|
||
(+ (count-lines (point-min) (point))
|
||
(if (bolp) 1 0)))
|
||
(cdr frame)))))
|
||
((eq key ?e)
|
||
(setq subst (gud-find-expr)))
|
||
((eq key ?a)
|
||
(setq subst (gud-read-address)))
|
||
((eq key ?c)
|
||
(setq subst
|
||
(gud-find-class
|
||
(if insource
|
||
(buffer-file-name)
|
||
(car frame))
|
||
(if insource
|
||
(save-restriction
|
||
(widen)
|
||
(+ (count-lines (point-min) (point))
|
||
(if (bolp) 1 0)))
|
||
(cdr frame)))))
|
||
((eq key ?p)
|
||
(setq subst (if arg (int-to-string arg)))))
|
||
(setq result (concat result (match-string 1 str) subst)))
|
||
(setq str (substring str (match-end 2))))
|
||
;; There might be text left in STR when the loop ends.
|
||
(concat result str)))
|
||
|
||
(defun gud-read-address ()
|
||
"Return a string containing the core-address found in the buffer at point."
|
||
(save-match-data
|
||
(save-excursion
|
||
(let ((pt (point)) found begin)
|
||
(setq found (if (search-backward "0x" (- pt 7) t) (point)))
|
||
(cond
|
||
(found (forward-char 2)
|
||
(buffer-substring found
|
||
(progn (re-search-forward "[^0-9a-f]")
|
||
(forward-char -1)
|
||
(point))))
|
||
(t (setq begin (progn (re-search-backward "[^0-9]")
|
||
(forward-char 1)
|
||
(point)))
|
||
(forward-char 1)
|
||
(re-search-forward "[^0-9]")
|
||
(forward-char -1)
|
||
(buffer-substring begin (point))))))))
|
||
|
||
(defun gud-call (fmt &optional arg)
|
||
(let ((msg (gud-format-command fmt arg)))
|
||
(message "Command: %s" msg)
|
||
(sit-for 0)
|
||
(gud-basic-call msg)))
|
||
|
||
(defun gud-basic-call (command)
|
||
"Invoke the debugger COMMAND displaying source in other window."
|
||
(interactive)
|
||
(gud-set-buffer)
|
||
(let ((proc (get-buffer-process gud-comint-buffer)))
|
||
(or proc (error "Current buffer has no process"))
|
||
;; Arrange for the current prompt to get deleted.
|
||
(save-excursion
|
||
(set-buffer gud-comint-buffer)
|
||
(save-restriction
|
||
(widen)
|
||
(goto-char (process-mark proc))
|
||
(forward-line 0)
|
||
(if (looking-at comint-prompt-regexp)
|
||
(set-marker gud-delete-prompt-marker (point)))
|
||
(if (eq gud-minor-mode 'gdba)
|
||
(apply comint-input-sender (list proc command))
|
||
(process-send-string proc (concat command "\n")))))))
|
||
|
||
(defun gud-refresh (&optional arg)
|
||
"Fix up a possibly garbled display, and redraw the arrow."
|
||
(interactive "P")
|
||
(or gud-last-frame (setq gud-last-frame gud-last-last-frame))
|
||
(gud-display-frame)
|
||
(recenter arg))
|
||
|
||
;; Code for parsing expressions out of C or Fortran code. The single entry
|
||
;; point is gud-find-expr, which tries to return an lvalue expression from
|
||
;; around point.
|
||
|
||
(defvar gud-find-expr-function 'gud-find-c-expr)
|
||
|
||
(defun gud-find-expr (&rest args)
|
||
(apply gud-find-expr-function args))
|
||
|
||
;; The next eight functions are hacked from gdbsrc.el by
|
||
;; Debby Ayers <ayers@asc.slb.com>,
|
||
;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx.
|
||
|
||
(defun gud-find-c-expr ()
|
||
"Returns the expr that surrounds point."
|
||
(interactive)
|
||
(save-excursion
|
||
(let ((p (point))
|
||
(expr (gud-innermost-expr))
|
||
(test-expr (gud-prev-expr)))
|
||
(while (and test-expr (gud-expr-compound test-expr expr))
|
||
(let ((prev-expr expr))
|
||
(setq expr (cons (car test-expr) (cdr expr)))
|
||
(goto-char (car expr))
|
||
(setq test-expr (gud-prev-expr))
|
||
;; If we just pasted on the condition of an if or while,
|
||
;; throw it away again.
|
||
(if (member (buffer-substring (car test-expr) (cdr test-expr))
|
||
'("if" "while" "for"))
|
||
(setq test-expr nil
|
||
expr prev-expr))))
|
||
(goto-char p)
|
||
(setq test-expr (gud-next-expr))
|
||
(while (gud-expr-compound expr test-expr)
|
||
(setq expr (cons (car expr) (cdr test-expr)))
|
||
(setq test-expr (gud-next-expr)))
|
||
(buffer-substring (car expr) (cdr expr)))))
|
||
|
||
(defun gud-innermost-expr ()
|
||
"Returns the smallest expr that point is in; move point to beginning of it.
|
||
The expr is represented as a cons cell, where the car specifies the point in
|
||
the current buffer that marks the beginning of the expr and the cdr specifies
|
||
the character after the end of the expr."
|
||
(let ((p (point)) begin end)
|
||
(gud-backward-sexp)
|
||
(setq begin (point))
|
||
(gud-forward-sexp)
|
||
(setq end (point))
|
||
(if (>= p end)
|
||
(progn
|
||
(setq begin p)
|
||
(goto-char p)
|
||
(gud-forward-sexp)
|
||
(setq end (point)))
|
||
)
|
||
(goto-char begin)
|
||
(cons begin end)))
|
||
|
||
(defun gud-backward-sexp ()
|
||
"Version of `backward-sexp' that catches errors."
|
||
(condition-case nil
|
||
(backward-sexp)
|
||
(error t)))
|
||
|
||
(defun gud-forward-sexp ()
|
||
"Version of `forward-sexp' that catches errors."
|
||
(condition-case nil
|
||
(forward-sexp)
|
||
(error t)))
|
||
|
||
(defun gud-prev-expr ()
|
||
"Returns the previous expr, point is set to beginning of that expr.
|
||
The expr is represented as a cons cell, where the car specifies the point in
|
||
the current buffer that marks the beginning of the expr and the cdr specifies
|
||
the character after the end of the expr"
|
||
(let ((begin) (end))
|
||
(gud-backward-sexp)
|
||
(setq begin (point))
|
||
(gud-forward-sexp)
|
||
(setq end (point))
|
||
(goto-char begin)
|
||
(cons begin end)))
|
||
|
||
(defun gud-next-expr ()
|
||
"Returns the following expr, point is set to beginning of that expr.
|
||
The expr is represented as a cons cell, where the car specifies the point in
|
||
the current buffer that marks the beginning of the expr and the cdr specifies
|
||
the character after the end of the expr."
|
||
(let ((begin) (end))
|
||
(gud-forward-sexp)
|
||
(gud-forward-sexp)
|
||
(setq end (point))
|
||
(gud-backward-sexp)
|
||
(setq begin (point))
|
||
(cons begin end)))
|
||
|
||
(defun gud-expr-compound-sep (span-start span-end)
|
||
"Scan from SPAN-START to SPAN-END for punctuation characters.
|
||
If `->' is found, return `?.'. If `.' is found, return `?.'.
|
||
If any other punctuation is found, return `??'.
|
||
If no punctuation is found, return `? '."
|
||
(let ((result ?\ )
|
||
(syntax))
|
||
(while (< span-start span-end)
|
||
(setq syntax (char-syntax (char-after span-start)))
|
||
(cond
|
||
((= syntax ?\ ) t)
|
||
((= syntax ?.) (setq syntax (char-after span-start))
|
||
(cond
|
||
((= syntax ?.) (setq result ?.))
|
||
((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>))
|
||
(setq result ?.)
|
||
(setq span-start (+ span-start 1)))
|
||
(t (setq span-start span-end)
|
||
(setq result ??)))))
|
||
(setq span-start (+ span-start 1)))
|
||
result))
|
||
|
||
(defun gud-expr-compound (first second)
|
||
"Non-nil if concatenating FIRST and SECOND makes a single C expression.
|
||
The two exprs are represented as a cons cells, where the car
|
||
specifies the point in the current buffer that marks the beginning of the
|
||
expr and the cdr specifies the character after the end of the expr.
|
||
Link exprs of the form:
|
||
Expr -> Expr
|
||
Expr . Expr
|
||
Expr (Expr)
|
||
Expr [Expr]
|
||
(Expr) Expr
|
||
[Expr] Expr"
|
||
(let ((span-start (cdr first))
|
||
(span-end (car second))
|
||
(syntax))
|
||
(setq syntax (gud-expr-compound-sep span-start span-end))
|
||
(cond
|
||
((= (car first) (car second)) nil)
|
||
((= (cdr first) (cdr second)) nil)
|
||
((= syntax ?.) t)
|
||
((= syntax ?\ )
|
||
(setq span-start (char-after (- span-start 1)))
|
||
(setq span-end (char-after span-end))
|
||
(cond
|
||
((= span-start ?)) t)
|
||
((= span-start ?]) t)
|
||
((= span-end ?() t)
|
||
((= span-end ?[) t)
|
||
(t nil)))
|
||
(t nil))))
|
||
|
||
(defun gud-find-class (f line)
|
||
"Find fully qualified class in file F at line LINE.
|
||
This function uses the `gud-jdb-classpath' (and optional
|
||
`gud-jdb-sourcepath') list(s) to derive a file
|
||
pathname relative to its classpath directory. The values in
|
||
`gud-jdb-classpath' are assumed to have been converted to absolute
|
||
pathname standards using file-truename.
|
||
If F is visited by a buffer and its mode is CC-mode(Java),
|
||
syntactic information of LINE is used to find the enclosing (nested)
|
||
class string which is appended to the top level
|
||
class of the file (using s to separate nested class ids)."
|
||
;; Convert f to a standard representation and remove suffix
|
||
(if (and gud-jdb-use-classpath (or gud-jdb-classpath gud-jdb-sourcepath))
|
||
(save-match-data
|
||
(let ((cplist (append gud-jdb-sourcepath gud-jdb-classpath))
|
||
(fbuffer (get-file-buffer f))
|
||
syntax-symbol syntax-point class-found)
|
||
(setq f (file-name-sans-extension (file-truename f)))
|
||
;; Syntax-symbol returns the symbol of the *first* element
|
||
;; in the syntactical analysis result list, syntax-point
|
||
;; returns the buffer position of same
|
||
(fset 'syntax-symbol (lambda (x) (c-langelem-sym (car x))))
|
||
(fset 'syntax-point (lambda (x) (c-langelem-pos (car x))))
|
||
;; Search through classpath list for an entry that is
|
||
;; contained in f
|
||
(while (and cplist (not class-found))
|
||
(if (string-match (car cplist) f)
|
||
(setq class-found
|
||
(mapconcat 'identity
|
||
(split-string
|
||
(substring f (+ (match-end 0) 1))
|
||
"/") ".")))
|
||
(setq cplist (cdr cplist)))
|
||
;; if f is visited by a java(cc-mode) buffer, walk up the
|
||
;; syntactic information chain and collect any 'inclass
|
||
;; symbols until 'topmost-intro is reached to find out if
|
||
;; point is within a nested class
|
||
(if (and fbuffer (equal (symbol-file 'java-mode) "cc-mode"))
|
||
(save-excursion
|
||
(set-buffer fbuffer)
|
||
(let ((nclass) (syntax))
|
||
;; While the c-syntactic information does not start
|
||
;; with the 'topmost-intro symbol, there may be
|
||
;; nested classes...
|
||
(while (not (eq 'topmost-intro
|
||
(syntax-symbol (c-guess-basic-syntax))))
|
||
;; Check if the current position c-syntactic
|
||
;; analysis has 'inclass
|
||
(setq syntax (c-guess-basic-syntax))
|
||
(while
|
||
(and (not (eq 'inclass (syntax-symbol syntax)))
|
||
(cdr syntax))
|
||
(setq syntax (cdr syntax)))
|
||
(if (eq 'inclass (syntax-symbol syntax))
|
||
(progn
|
||
(goto-char (syntax-point syntax))
|
||
;; Now we're at the beginning of a class
|
||
;; definition. Find class name
|
||
(looking-at
|
||
"[A-Za-z0-9 \t\n]*?class[ \t\n]+\\([^ \t\n]+\\)")
|
||
(setq nclass
|
||
(append (list (match-string-no-properties 1))
|
||
nclass)))
|
||
(setq syntax (c-guess-basic-syntax))
|
||
(while (and (not (syntax-point syntax)) (cdr syntax))
|
||
(setq syntax (cdr syntax)))
|
||
(goto-char (syntax-point syntax))
|
||
))
|
||
(string-match (concat (car nclass) "$") class-found)
|
||
(setq class-found
|
||
(replace-match (mapconcat 'identity nclass "$")
|
||
t t class-found)))))
|
||
(if (not class-found)
|
||
(message "gud-find-class: class for file %s not found!" f))
|
||
class-found))
|
||
;; Not using classpath - try class/source association list
|
||
(let ((class-found (rassoc f gud-jdb-class-source-alist)))
|
||
(if class-found
|
||
(car class-found)
|
||
(message "gud-find-class: class for file %s not found in gud-jdb-class-source-alist!" f)
|
||
nil))))
|
||
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;; GDB script mode ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
(defvar gdb-script-mode-syntax-table
|
||
(let ((st (make-syntax-table)))
|
||
(modify-syntax-entry ?' "\"" st)
|
||
(modify-syntax-entry ?# "<" st)
|
||
(modify-syntax-entry ?\n ">" st)
|
||
st))
|
||
|
||
(defvar gdb-script-font-lock-keywords
|
||
'(("^define\\s-+\\(\\(\\w\\|\\s_\\)+\\)" (1 font-lock-function-name-face))
|
||
("\\$\\(\\w+\\)" (1 font-lock-variable-name-face))
|
||
("^\\s-*\\([a-z]+\\)" (1 font-lock-keyword-face))))
|
||
|
||
(defvar gdb-script-font-lock-syntactic-keywords
|
||
'(("^document\\s-.*\\(\n\\)" (1 "< b"))
|
||
;; It would be best to change the \n in front, but it's more difficult.
|
||
("^en\\(d\\)\\>" (1 "> b"))))
|
||
|
||
(defun gdb-script-font-lock-syntactic-face (state)
|
||
(cond
|
||
((nth 3 state) font-lock-string-face)
|
||
((nth 7 state) font-lock-doc-face)
|
||
(t font-lock-comment-face)))
|
||
|
||
(defvar gdb-script-basic-indent 2)
|
||
|
||
(defun gdb-script-skip-to-head ()
|
||
"We're just in front of an `end' and we need to go to its head."
|
||
(while (and (re-search-backward "^\\s-*\\(\\(end\\)\\|define\\|document\\|if\\|while\\)\\>" nil 'move)
|
||
(match-end 2))
|
||
(gdb-script-skip-to-head)))
|
||
|
||
(defun gdb-script-calculate-indentation ()
|
||
(cond
|
||
((looking-at "end\\>")
|
||
(gdb-script-skip-to-head)
|
||
(current-indentation))
|
||
((looking-at "else\\>")
|
||
(while (and (re-search-backward "^\\s-*\\(if\\|\\(end\\)\\)\\>" nil 'move)
|
||
(match-end 2))
|
||
(gdb-script-skip-to-head))
|
||
(current-indentation))
|
||
(t
|
||
(forward-comment (- (point-max)))
|
||
(forward-line 0)
|
||
(skip-chars-forward " \t")
|
||
(+ (current-indentation)
|
||
(if (looking-at "\\(if\\|while\\|define\\|else\\)\\>")
|
||
gdb-script-basic-indent 0)))))
|
||
|
||
(defun gdb-script-indent-line ()
|
||
"Indent current line of GDB script."
|
||
(interactive)
|
||
(if (and (eq (get-text-property (point) 'face) font-lock-doc-face)
|
||
(save-excursion
|
||
(forward-line 0)
|
||
(skip-chars-forward " \t")
|
||
(not (looking-at "end\\>"))))
|
||
'noindent
|
||
(let* ((savep (point))
|
||
(indent (condition-case nil
|
||
(save-excursion
|
||
(forward-line 0)
|
||
(skip-chars-forward " \t")
|
||
(if (>= (point) savep) (setq savep nil))
|
||
(max (gdb-script-calculate-indentation) 0))
|
||
(error 0))))
|
||
(if savep
|
||
(save-excursion (indent-line-to indent))
|
||
(indent-line-to indent)))))
|
||
|
||
;;;###autoload
|
||
(add-to-list 'auto-mode-alist '("/\\.gdbinit" . gdb-script-mode))
|
||
|
||
;;;###autoload
|
||
(define-derived-mode gdb-script-mode nil "GDB-Script"
|
||
"Major mode for editing GDB scripts"
|
||
(set (make-local-variable 'comment-start) "#")
|
||
(set (make-local-variable 'comment-start-skip) "#+\\s-*")
|
||
(set (make-local-variable 'outline-regexp) "[ \t]")
|
||
(set (make-local-variable 'imenu-generic-expression)
|
||
'((nil "^define[ \t]+\\(\\w+\\)" 1)))
|
||
(set (make-local-variable 'indent-line-function) 'gdb-script-indent-line)
|
||
(set (make-local-variable 'font-lock-defaults)
|
||
'(gdb-script-font-lock-keywords nil nil ((?_ . "w")) nil
|
||
(font-lock-syntactic-keywords
|
||
. gdb-script-font-lock-syntactic-keywords)
|
||
(font-lock-syntactic-face-function
|
||
. gdb-script-font-lock-syntactic-face))))
|
||
|
||
(provide 'gud)
|
||
|
||
;;; arch-tag: 6d990948-df65-461a-be39-1c7fb83ac4c4
|
||
;;; gud.el ends here
|