diff --git a/gdb/ChangeLog b/gdb/ChangeLog index f2bd13a225..c4f7536d8d 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +Tue Oct 24 16:12:00 2000 Andrew Cagney + + * gdba.el: Delete file. + * NEWS: Mention. + 2000-10-23 David B Anderson * TODO: Correct spelling errors diff --git a/gdb/NEWS b/gdb/NEWS index 2913f565a8..177181e490 100644 --- a/gdb/NEWS +++ b/gdb/NEWS @@ -22,6 +22,9 @@ x86 FreeBSD before 2.2 i[3456]86*-freebsd{1,2.[01]}*, Multi-arch support is enabled for all MIPS configurations. +* gdba.el deleted + +GUD support is now a standard part of the EMACS distribution. *** Changes in GDB 5.0: diff --git a/gdb/gdba.el b/gdb/gdba.el deleted file mode 100644 index 772977fc95..0000000000 --- a/gdb/gdba.el +++ /dev/null @@ -1,2607 +0,0 @@ -(defmacro gud (form) - (` (save-excursion (set-buffer "*gud-a.out*") (, form)))) - -(defun dbug (foo &optional fun) - (save-excursion - (set-buffer (get-buffer-create "*trace*")) - (goto-char (point-max)) - (insert "***" (symbol-name foo) "\n") - (if fun - (funcall fun)))) - - -;;; gud.el --- Grand Unified Debugger mode for gdb, sdb, dbx, or xdb -;;; under Emacs - -;; Author: Eric S. Raymond -;; Maintainer: FSF -;; Version: 1.3 -;; Keywords: unix, tools - -;; Copyright (C) 1992, 1993 Free Software Foundation, Inc. - -;; This file is part of GNU Emacs. - -;; GNU Emacs is free software; you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2, or (at your option) -;; any later version. - -;; GNU Emacs is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. - -;; You should have received a copy of the GNU General Public License -;; along with GNU Emacs; if not, write to the Free Software -;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - -;;; Commentary: - -;; The ancestral gdb.el was by W. Schelter -;; It was later rewritten by rms. Some ideas were due to Masanobu. -;; Grand Unification (sdb/dbx support) by Eric S. Raymond -;; The overloading code was then rewritten by Barry Warsaw , -;; who also hacked the mode to use comint.el. Shane Hartman -;; added support for xdb (HPUX debugger). - -;; Cygnus Support added support for gdb's --annotate=2. - -;;; Code: - -(require 'comint) -(require 'etags) - -;; ====================================================================== -;; GUD commands must be visible in C buffers visited by GUD - -(defvar gud-key-prefix "\C-x\C-a" - "Prefix of all GUD commands valid in C buffers.") - -(global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh) -(global-set-key "\C-x " 'gud-break) ;; backward compatibility hack - -;; ====================================================================== -;; the overloading mechanism - -(defun gud-overload-functions (gud-overload-alist) - "Overload functions defined in GUD-OVERLOAD-ALIST. -This association list has elements of the form - (ORIGINAL-FUNCTION-NAME OVERLOAD-FUNCTION)" - (mapcar - (function (lambda (p) (fset (car p) (symbol-function (cdr p))))) - gud-overload-alist)) - -(defun gud-massage-args (file args) - (error "GUD not properly entered.")) - -(defun gud-marker-filter (str) - (error "GUD not properly entered.")) - -(defun gud-find-file (f) - (error "GUD not properly entered.")) - -;; ====================================================================== -;; command definition - -;; This macro is used below to define some basic debugger interface commands. -;; Of course you may use `gud-def' with any other debugger command, including -;; user defined ones. - -;; A macro call like (gud-def FUNC NAME KEY DOC) expands to a form -;; which defines FUNC to send the command NAME to the debugger, gives -;; it the docstring DOC, and binds that function to KEY in the GUD -;; major mode. The function is also bound in the global keymap with the -;; GUD prefix. - -(defmacro gud-def (func cmd key &optional doc) - "Define FUNC to be a command sending STR and bound to KEY, with -optional doc string DOC. Certain %-escapes in the string arguments -are interpreted specially if present. These are: - - %f name (without directory) of current source file. - %d directory of current source file. - %l number of current source line - %e text of the C lvalue or function-call expression surrounding point. - %a text of the hexadecimal address surrounding point - %p prefix argument to the command (if any) as a number - - The `current' source file is the file of the current buffer (if -we're in a C file) or the source file current at the last break or -step (if we're in the GUD buffer). - The `current' line is that of the current buffer (if we're in a -source file) or the source line number at the last break or step (if -we're in the GUD buffer)." - (list 'progn - (list 'defun func '(arg) - (or doc "") - '(interactive "p") - (list 'gud-call cmd 'arg)) - (if key - (list 'define-key - '(current-local-map) - (concat "\C-c" key) - (list 'quote func))) - (if key - (list 'global-set-key - (list 'concat 'gud-key-prefix key) - (list 'quote func))))) - -;; Where gud-display-frame should put the debugging arrow. This is -;; set by the marker-filter, which scans the debugger's output for -;; indications of the current program counter. -(defvar gud-last-frame nil) - -;; Used by gud-refresh, which should cause gud-display-frame to redisplay -;; the last frame, even if it's been called before and gud-last-frame has -;; been set to nil. -(defvar gud-last-last-frame nil) - -;; All debugger-specific information is collected here. -;; Here's how it works, in case you ever need to add a debugger to the mode. -;; -;; Each entry must define the following at startup: -;; -;; -;; comint-prompt-regexp -;; gud--massage-args -;; gud--marker-filter -;; gud--find-file -;; -;; The job of the massage-args method is to modify the given list of -;; debugger arguments before running the debugger. -;; -;; The job of the marker-filter method is to detect file/line markers in -;; strings and set the global gud-last-frame to indicate what display -;; action (if any) should be triggered by the marker. Note that only -;; whatever the method *returns* is displayed in the buffer; thus, you -;; can filter the debugger's output, interpreting some and passing on -;; the rest. -;; -;; The job of the find-file method is to visit and return the buffer indicated -;; by the car of gud-tag-frame. This may be a file name, a tag name, or -;; something else. - -;; ====================================================================== -;; gdb functions - -;;; History of argument lists passed to gdb. -(defvar gud-gdb-history nil) - -(defun gud-gdb-massage-args (file args) - (cons "--annotate=2" (cons file args))) - - -;; -;; In this world, there are gdb instance objects (of unspecified -;; representation) and buffers associated with those objects. -;; - -;; -;; gdb-instance objects -;; - -(defun make-gdb-instance (proc) - "Create a gdb instance object from a gdb process." - (setq last-proc proc) - (let ((instance (cons 'gdb-instance proc))) - (save-excursion - (set-buffer (process-buffer proc)) - (setq gdb-buffer-instance instance) - (progn - (mapcar 'make-variable-buffer-local gdb-instance-variables) - (setq gdb-buffer-type 'gud) - ;; If we're taking over the buffer of another process, - ;; take over it's ancillery buffers as well. - ;; - (let ((dead (or old-gdb-buffer-instance))) - (mapcar - (function - (lambda (b) - (progn - (set-buffer b) - (if (eq dead gdb-buffer-instance) - (setq gdb-buffer-instance instance))))) - (buffer-list))))) - instance)) - -(defun gdb-instance-process (inst) (cdr inst)) - -;;; The list of instance variables is built up by the expansions of -;;; DEF-GDB-VARIABLE -;;; -(defvar gdb-instance-variables '() - "A list of variables that are local to the gud buffer associated -with a gdb instance.") - -(defmacro def-gdb-variable - (name accessor setter &optional default doc) - (` - (progn - (defvar (, name) (, default) (, (or doc "undocumented"))) - (if (not (memq '(, name) gdb-instance-variables)) - (setq gdb-instance-variables - (cons '(, name) gdb-instance-variables))) - (, (and accessor - (` - (defun (, accessor) (instance) - (let - ((buffer (gdb-get-instance-buffer instance 'gud))) - (and buffer - (save-excursion - (set-buffer buffer) - (, name)))))))) - (, (and setter - (` - (defun (, setter) (instance val) - (let - ((buffer (gdb-get-instance-buffer instance 'gud))) - (and buffer - (save-excursion - (set-buffer buffer) - (setq (, name) val))))))))))) - -(defmacro def-gdb-var (root-symbol &optional default doc) - (let* ((root (symbol-name root-symbol)) - (accessor (intern (concat "gdb-instance-" root))) - (setter (intern (concat "set-gdb-instance-" root))) - (var-name (intern (concat "gdb-" root)))) - (` (def-gdb-variable - (, var-name) (, accessor) (, setter) - (, default) (, doc))))) - -(def-gdb-var buffer-instance nil - "In an instance buffer, the buffer's instance.") - -(def-gdb-var buffer-type nil - "One of the symbols bound in gdb-instance-buffer-rules") - -(def-gdb-var burst "" - "A string of characters from gdb that have not yet been processed.") - -(def-gdb-var input-queue () - "A list of high priority gdb command objects.") - -(def-gdb-var idle-input-queue () - "A list of low priority gdb command objects.") - -(def-gdb-var prompting nil - "True when gdb is idle with no pending input.") - -(def-gdb-var output-sink 'user - "The disposition of the output of the current gdb command. -Possible values are these symbols: - - user -- gdb output should be copied to the gud buffer - for the user to see. - - inferior -- gdb output should be copied to the inferior-io buffer - - pre-emacs -- output should be ignored util the post-prompt - annotation is received. Then the output-sink - becomes:... - emacs -- output should be collected in the partial-output-buffer - for subsequent processing by a command. This is the - disposition of output generated by commands that - gud mode sends to gdb on its own behalf. - post-emacs -- ignore input until the prompt annotation is - received, then go to USER disposition. -") - -(def-gdb-var current-item nil - "The most recent command item sent to gdb.") - -(def-gdb-var pending-triggers '() - "A list of trigger functions that have run later than their output -handlers.") - -(defun in-gdb-instance-context (instance form) - "Funcall `form' in the gud buffer of `instance'" - (save-excursion - (set-buffer (gdb-get-instance-buffer instance 'gud)) - (funcall form))) - -;; end of instance vars - -;; -;; finding instances -;; - -(defun gdb-proc->instance (proc) - (save-excursion - (set-buffer (process-buffer proc)) - gdb-buffer-instance)) - -(defun gdb-mru-instance-buffer () - "Return the most recently used (non-auxiliary) gdb gud buffer." - (save-excursion - (gdb-goto-first-gdb-instance (buffer-list)))) - -(defun gdb-goto-first-gdb-instance (blist) - "Use gdb-mru-instance-buffer -- not this." - (and blist - (progn - (set-buffer (car blist)) - (or (and gdb-buffer-instance - (eq gdb-buffer-type 'gud) - (car blist)) - (gdb-goto-first-gdb-instance (cdr blist)))))) - -(defun buffer-gdb-instance (buf) - (save-excursion - (set-buffer buf) - gdb-buffer-instance)) - -(defun gdb-needed-default-instance () - "Return the most recently used gdb instance or signal an error." - (let ((buffer (gdb-mru-instance-buffer))) - (or (and buffer (buffer-gdb-instance buffer)) - (error "No instance of gdb found.")))) - -(defun gdb-instance-target-string (instance) - "The apparent name of the program being debugged by a gdb instance. -For sure this the root string used in smashing together the gud -buffer's name, even if that doesn't happen to be the name of a -program." - (in-gdb-instance-context - instance - (function (lambda () gud-target-name)))) - - - -;; -;; Instance Buffers. -;; - -;; More than one buffer can be associated with a gdb instance. -;; -;; Each buffer has a TYPE -- a symbol that identifies the function -;; of that particular buffer. -;; -;; The usual gud interaction buffer is given the type `gud' and -;; is constructed specially. -;; -;; Others are constructed by gdb-get-create-instance-buffer and -;; named according to the rules set forth in the gdb-instance-buffer-rules-assoc - -(defun gdb-get-instance-buffer (instance key) - "Return the instance buffer for `instance' tagged with type `key'. -The key should be one of the cars in `gdb-instance-buffer-rules-assoc'." - (save-excursion - (gdb-look-for-tagged-buffer instance key (buffer-list)))) - -(defun gdb-get-create-instance-buffer (instance key) - "Create a new gdb instance buffer of the type specified by `key'. -The key should be one of the cars in `gdb-instance-buffer-rules-assoc'." - (or (gdb-get-instance-buffer instance key) - (let* ((rules (assoc key gdb-instance-buffer-rules-assoc)) - (name (funcall (gdb-rules-name-maker rules) instance)) - (new (get-buffer-create name))) - (save-excursion - (set-buffer new) - (make-variable-buffer-local 'gdb-buffer-type) - (setq gdb-buffer-type key) - (make-variable-buffer-local 'gdb-buffer-instance) - (setq gdb-buffer-instance instance) - (if (cdr (cdr rules)) - (funcall (car (cdr (cdr rules))))) - new)))) - -(defun gdb-rules-name-maker (rules) (car (cdr rules))) - -(defun gdb-look-for-tagged-buffer (instance key bufs) - (let ((retval nil)) - (while (and (not retval) bufs) - (set-buffer (car bufs)) - (if (and (eq gdb-buffer-instance instance) - (eq gdb-buffer-type key)) - (setq retval (car bufs))) - (setq bufs (cdr bufs)) - ) - retval)) - -(defun gdb-instance-buffer-p (buf) - (save-excursion - (set-buffer buf) - (and gdb-buffer-type - (not (eq gdb-buffer-type 'gud))))) - -;; -;; This assoc maps buffer type symbols to rules. Each rule is a list of -;; at least one and possible more functions. The functions have these -;; roles in defining a buffer type: -;; -;; NAME - take an instance, return a name for this type buffer for that -;; instance. -;; The remaining function(s) are optional: -;; -;; MODE - called in new new buffer with no arguments, should establish -;; the proper mode for the buffer. -;; - -(defvar gdb-instance-buffer-rules-assoc '()) - -(defun gdb-set-instance-buffer-rules (buffer-type &rest rules) - (let ((binding (assoc buffer-type gdb-instance-buffer-rules-assoc))) - (if binding - (setcdr binding rules) - (setq gdb-instance-buffer-rules-assoc - (cons (cons buffer-type rules) - gdb-instance-buffer-rules-assoc))))) - -(gdb-set-instance-buffer-rules 'gud 'error) ; gud buffers are an exception to the rules - -;; -;; partial-output buffers -;; -;; These accumulate output from a command executed on -;; behalf of emacs (rather than the user). -;; - -(gdb-set-instance-buffer-rules 'gdb-partial-output-buffer - 'gdb-partial-output-name) - -(defun gdb-partial-output-name (instance) - (concat "*partial-output-" - (gdb-instance-target-string instance) - "*")) - - -(gdb-set-instance-buffer-rules 'gdb-inferior-io - 'gdb-inferior-io-name - 'gud-inferior-io-mode) - -(defun gdb-inferior-io-name (instance) - (concat "*input/output of " - (gdb-instance-target-string instance) - "*")) - -(defvar gdb-inferior-io-mode-map (copy-keymap comint-mode-map)) -(define-key comint-mode-map "\C-c\C-c" 'gdb-inferior-io-interrupt) -(define-key comint-mode-map "\C-c\C-z" 'gdb-inferior-io-stop) -(define-key comint-mode-map "\C-c\C-\\" 'gdb-inferior-io-quit) -(define-key comint-mode-map "\C-c\C-d" 'gdb-inferior-io-eof) - -(defun gud-inferior-io-mode () - "Major mode for gud inferior-io. - -\\{comint-mode-map}" - ;; We want to use comint because it has various nifty and familiar - ;; features. We don't need a process, but comint wants one, so create - ;; a dummy one. - (make-comint (substring (buffer-name) 1 (- (length (buffer-name)) 1)) - "/bin/cat") - (setq major-mode 'gud-inferior-io-mode) - (setq mode-name "Debuggee I/O") - (setq comint-input-sender 'gud-inferior-io-sender) -) - -(defun gud-inferior-io-sender (proc string) - (save-excursion - (set-buffer (process-buffer proc)) - (let ((instance gdb-buffer-instance)) - (set-buffer (gdb-get-instance-buffer instance 'gud)) - (let ((gud-proc (get-buffer-process (current-buffer)))) - (process-send-string gud-proc string) - (process-send-string gud-proc "\n") - )) - )) - -(defun gdb-inferior-io-interrupt (instance) - "Interrupt the program being debugged." - (interactive (list (gdb-needed-default-instance))) - (interrupt-process - (get-buffer-process (gdb-get-instance-buffer instance 'gud)) comint-ptyp)) - -(defun gdb-inferior-io-quit (instance) - "Send quit signal to the program being debugged." - (interactive (list (gdb-needed-default-instance))) - (quit-process - (get-buffer-process (gdb-get-instance-buffer instance 'gud)) comint-ptyp)) - -(defun gdb-inferior-io-stop (instance) - "Stop the program being debugged." - (interactive (list (gdb-needed-default-instance))) - (stop-process - (get-buffer-process (gdb-get-instance-buffer instance 'gud)) comint-ptyp)) - -(defun gdb-inferior-io-eof (instance) - "Send end-of-file to the program being debugged." - (interactive (list (gdb-needed-default-instance))) - (process-send-eof - (get-buffer-process (gdb-get-instance-buffer instance 'gud)))) - - -;; -;; gdb communications -;; - -;; INPUT: things sent to gdb -;; -;; Each instance has a high and low priority -;; input queue. Low priority input is sent only -;; when the high priority queue is idle. -;; -;; The queues are lists. Each element is either -;; a string (indicating user or user-like input) -;; or a list of the form: -;; -;; (INPUT-STRING HANDLER-FN) -;; -;; -;; The handler function will be called from the -;; partial-output buffer when the command completes. -;; This is the way to write commands which -;; invoke gdb commands autonomously. -;; -;; These lists are consumed tail first. -;; - -(defun gdb-send (proc string) - "A comint send filter for gdb. -This filter may simply queue output for a later time." - (let ((instance (gdb-proc->instance proc))) - (gdb-instance-enqueue-input instance (concat string "\n")))) - -;; Note: Stuff enqueued here will be sent to the next prompt, even if it -;; is a query, or other non-top-level prompt. To guarantee stuff will get -;; sent to the top-level prompt, currently it must be put in the idle queue. -;; ^^^^^^^^^ -;; [This should encourage gud extentions that invoke gdb commands to let -;; the user go first; it is not a bug. -t] -;; - -(defun gdb-instance-enqueue-input (instance item) - (if (gdb-instance-prompting instance) - (progn - (gdb-send-item instance item) - (set-gdb-instance-prompting instance nil)) - (set-gdb-instance-input-queue - instance - (cons item (gdb-instance-input-queue instance))))) - -(defun gdb-instance-dequeue-input (instance) - (let ((queue (gdb-instance-input-queue instance))) - (and queue - (if (not (cdr queue)) - (let ((answer (car queue))) - (set-gdb-instance-input-queue instance '()) - answer) - (gdb-take-last-elt queue))))) - -(defun gdb-instance-enqueue-idle-input (instance item) - (if (and (gdb-instance-prompting instance) - (not (gdb-instance-input-queue instance))) - (progn - (gdb-send-item instance item) - (set-gdb-instance-prompting instance nil)) - (set-gdb-instance-idle-input-queue - instance - (cons item (gdb-instance-idle-input-queue instance))))) - -(defun gdb-instance-dequeue-idle-input (instance) - (let ((queue (gdb-instance-idle-input-queue instance))) - (and queue - (if (not (cdr queue)) - (let ((answer (car queue))) - (set-gdb-instance-idle-input-queue instance '()) - answer) - (gdb-take-last-elt queue))))) - -; Don't use this in general. -(defun gdb-take-last-elt (l) - (if (cdr (cdr l)) - (gdb-take-last-elt (cdr l)) - (let ((answer (car (cdr l)))) - (setcdr l '()) - answer))) - - -;; -;; output -- things gdb prints to emacs -;; -;; GDB output is a stream interrupted by annotations. -;; Annotations can be recognized by their beginning -;; with \C-j\C-z\C-z\C-j -;; -;; The tag is a string obeying symbol syntax. -;; -;; The optional part `' can be either the empty string -;; or a space followed by more data relating to the annotation. -;; For example, the SOURCE annotation is followed by a filename, -;; line number and various useless goo. This data must not include -;; any newlines. -;; - - -(defun gud-gdb-marker-filter (string) - "A gud marker filter for gdb." - ;; Bogons don't tell us the process except through scoping crud. - (let ((instance (gdb-proc->instance proc))) - (gdb-output-burst instance string))) - -(defvar gdb-annotation-rules - '(("frames-invalid" gdb-invalidate-frames) - ("breakpoints-invalid" gdb-invalidate-breakpoints) - ("pre-prompt" gdb-pre-prompt) - ("prompt" gdb-prompt) - ("commands" gdb-subprompt) - ("overload-choice" gdb-subprompt) - ("query" gdb-subprompt) - ("prompt-for-continue" gdb-subprompt) - ("post-prompt" gdb-post-prompt) - ("source" gdb-source) - ("starting" gdb-starting) - ("exited" gdb-stopping) - ("signalled" gdb-stopping) - ("signal" gdb-stopping) - ("breakpoint" gdb-stopping) - ("watchpoint" gdb-stopping) - ("stopped" gdb-stopped) - ) - "An assoc mapping annotation tags to functions which process them.") - - -(defun gdb-ignore-annotation (instance args) - nil) - -(defconst gdb-source-spec-regexp - "\\(.*\\):\\([0-9]*\\):[0-9]*:[a-z]*:0x[a-f0-9]*") - -;; Do not use this except as an annotation handler." -(defun gdb-source (instance args) - (string-match gdb-source-spec-regexp args) - ;; Extract the frame position from the marker. - (setq gud-last-frame - (cons - (substring args (match-beginning 1) (match-end 1)) - (string-to-int (substring args - (match-beginning 2) - (match-end 2)))))) - -;; An annotation handler for `prompt'. -;; This sends the next command (if any) to gdb. -(defun gdb-prompt (instance ignored) - (let ((sink (gdb-instance-output-sink instance))) - (cond - ((eq sink 'user) t) - ((eq sink 'post-emacs) - (set-gdb-instance-output-sink instance 'user)) - (t - (set-gdb-instance-output-sink instance 'user) - (error "Phase error in gdb-prompt (got %s)" sink)))) - (let ((highest (gdb-instance-dequeue-input instance))) - (if highest - (gdb-send-item instance highest) - (let ((lowest (gdb-instance-dequeue-idle-input instance))) - (if lowest - (gdb-send-item instance lowest) - (progn - (set-gdb-instance-prompting instance t) - (gud-display-frame))))))) - -;; An annotation handler for non-top-level prompts. -(defun gdb-subprompt (instance ignored) - (let ((highest (gdb-instance-dequeue-input instance))) - (if highest - (gdb-send-item instance highest) - (set-gdb-instance-prompting instance t)))) - -(defun gdb-send-item (instance item) - (set-gdb-instance-current-item instance item) - (if (stringp item) - (progn - (set-gdb-instance-output-sink instance 'user) - (process-send-string (gdb-instance-process instance) - item)) - (progn - (gdb-clear-partial-output instance) - (set-gdb-instance-output-sink instance 'pre-emacs) - (process-send-string (gdb-instance-process instance) - (car item))))) - -;; An annotation handler for `pre-prompt'. -;; This terminates the collection of output from a previous -;; command if that happens to be in effect. -(defun gdb-pre-prompt (instance ignored) - (let ((sink (gdb-instance-output-sink instance))) - (cond - ((eq sink 'user) t) - ((eq sink 'emacs) - (set-gdb-instance-output-sink instance 'post-emacs) - (let ((handler - (car (cdr (gdb-instance-current-item instance))))) - (save-excursion - (set-buffer (gdb-get-create-instance-buffer - instance 'gdb-partial-output-buffer)) - (funcall handler)))) - (t - (set-gdb-instance-output-sink instance 'user) - (error "Output sink phase error 1."))))) - -;; An annotation handler for `starting'. This says that I/O for the subprocess -;; is now the program being debugged, not GDB. -(defun gdb-starting (instance ignored) - (let ((sink (gdb-instance-output-sink instance))) - (cond - ((eq sink 'user) - (set-gdb-instance-output-sink instance 'inferior) - ;; FIXME: need to send queued input - ) - (t (error "Unexpected `starting' annotation"))))) - -;; An annotation handler for `exited' and other annotations which say that -;; I/O for the subprocess is now GDB, not the program being debugged. -(defun gdb-stopping (instance ignored) - (let ((sink (gdb-instance-output-sink instance))) - (cond - ((eq sink 'inferior) - (set-gdb-instance-output-sink instance 'user) - ) - (t (error "Unexpected stopping annotation"))))) - -;; An annotation handler for `stopped'. It is just like gdb-stopping, except -;; that if we already set the output sink to 'user in gdb-stopping, that is -;; fine. -(defun gdb-stopped (instance ignored) - (let ((sink (gdb-instance-output-sink instance))) - (cond - ((eq sink 'inferior) - (set-gdb-instance-output-sink instance 'user) - ) - ((eq sink 'user) - t) - (t (error "Unexpected stopping annotation"))))) - -;; An annotation handler for `post-prompt'. -;; This begins the collection of output from the current -;; command if that happens to be appropriate." -(defun gdb-post-prompt (instance ignored) - (gdb-invalidate-registers instance ignored) - (let ((sink (gdb-instance-output-sink instance))) - (cond - ((eq sink 'user) t) - ((eq sink 'pre-emacs) - (set-gdb-instance-output-sink instance 'emacs)) - - (t - (set-gdb-instance-output-sink instance 'user) - (error "Output sink phase error 3."))))) - -;; Handle a burst of output from a gdb instance. -;; This function is (indirectly) used as a gud-marker-filter. -;; It must return output (if any) to be insterted in the gud -;; buffer. - -(defun gdb-output-burst (instance string) - "Handle a burst of output from a gdb instance. -This function is (indirectly) used as a gud-marker-filter. -It must return output (if any) to be insterted in the gud -buffer." - - (save-match-data - (let ( - ;; Recall the left over burst from last time - (burst (concat (gdb-instance-burst instance) string)) - ;; Start accumulating output for the gud buffer - (output "")) - - ;; Process all the complete markers in this chunk. - - (while (string-match "\n\032\032\\(.*\\)\n" burst) - (let ((annotation (substring burst - (match-beginning 1) - (match-end 1)))) - - ;; Stuff prior to the match is just ordinary output. - ;; It is either concatenated to OUTPUT or directed - ;; elsewhere. - (setq output - (gdb-concat-output - instance - output - (substring burst 0 (match-beginning 0)))) - - ;; Take that stuff off the burst. - (setq burst (substring burst (match-end 0))) - - ;; Parse the tag from the annotation, and maybe its arguments. - (string-match "\\(\\S-*\\) ?\\(.*\\)" annotation) - (let* ((annotation-type (substring annotation - (match-beginning 1) - (match-end 1))) - (annotation-arguments (substring annotation - (match-beginning 2) - (match-end 2))) - (annotation-rule (assoc annotation-type - gdb-annotation-rules))) - ;; Call the handler for this annotation. - (if annotation-rule - (funcall (car (cdr annotation-rule)) - instance - annotation-arguments) - ;; Else the annotation is not recognized. Ignore it silently, - ;; so that GDB can add new annotations without causing - ;; us to blow up. - )))) - - - ;; Does the remaining text end in a partial line? - ;; If it does, then keep part of the burst until we get more. - (if (string-match "\n\\'\\|\n\032\\'\\|\n\032\032.*\\'" - burst) - (progn - ;; Everything before the potential marker start can be output. - (setq output - (gdb-concat-output - instance - output - (substring burst 0 (match-beginning 0)))) - - ;; Everything after, we save, to combine with later input. - (setq burst (substring burst (match-beginning 0)))) - - ;; In case we know the burst contains no partial annotations: - (progn - (setq output (gdb-concat-output instance output burst)) - (setq burst ""))) - - ;; Save the remaining burst for the next call to this function. - (set-gdb-instance-burst instance burst) - output))) - -(defun gdb-concat-output (instance so-far new) - (let ((sink (gdb-instance-output-sink instance))) - (cond - ((eq sink 'user) (concat so-far new)) - ((or (eq sink 'pre-emacs) (eq sink 'post-emacs)) so-far) - ((eq sink 'emacs) - (gdb-append-to-partial-output instance new) - so-far) - ((eq sink 'inferior) - (gdb-append-to-inferior-io instance new) - so-far) - (t (error "Bogon output sink %S" sink))))) - -(defun gdb-append-to-partial-output (instance string) - (save-excursion - (set-buffer - (gdb-get-create-instance-buffer - instance 'gdb-partial-output-buffer)) - (goto-char (point-max)) - (insert string))) - -(defun gdb-clear-partial-output (instance) - (save-excursion - (set-buffer - (gdb-get-create-instance-buffer - instance 'gdb-partial-output-buffer)) - (delete-region (point-min) (point-max)))) - -(defun gdb-append-to-inferior-io (instance string) - (save-excursion - (set-buffer - (gdb-get-create-instance-buffer - instance 'gdb-inferior-io)) - (goto-char (point-max)) - (insert-before-markers string)) - (gud-display-buffer - (gdb-get-create-instance-buffer instance - 'gdb-inferior-io))) - -(defun gdb-clear-inferior-io (instance) - (save-excursion - (set-buffer - (gdb-get-create-instance-buffer - instance 'gdb-inferior-io)) - (delete-region (point-min) (point-max)))) - - - -;; One trick is to have a command who's output is always available in -;; a buffer of it's own, and is always up to date. We build several -;; buffers of this type. -;; -;; There are two aspects to this: gdb has to tell us when the output -;; for that command might have changed, and we have to be able to run -;; the command behind the user's back. -;; -;; The idle input queue and the output phasing associated with -;; the instance variable `(gdb-instance-output-sink instance)' help -;; us to run commands behind the user's back. -;; -;; Below is the code for specificly managing buffers of output from one -;; command. -;; - - -;; The trigger function is suitable for use in the assoc GDB-ANNOTATION-RULES -;; It adds an idle input for the command we are tracking. It should be the -;; annotation rule binding of whatever gdb sends to tell us this command -;; might have changed it's output. -;; -;; NAME is the function name. DEMAND-PREDICATE tests if output is really needed. -;; GDB-COMMAND is a string of such. OUTPUT-HANDLER is the function bound to the -;; input in the input queue (see comment about ``gdb communications'' above). -(defmacro def-gdb-auto-update-trigger (name demand-predicate gdb-command output-handler) - (` - (defun (, name) (instance &optional ignored) - (if (and ((, demand-predicate) instance) - (not (member '(, name) - (gdb-instance-pending-triggers instance)))) - (progn - (gdb-instance-enqueue-idle-input - instance - (list (, gdb-command) '(, output-handler))) - (set-gdb-instance-pending-triggers - instance - (cons '(, name) - (gdb-instance-pending-triggers instance)))))))) - -(defmacro def-gdb-auto-update-handler (name trigger buf-key) - (` - (defun (, name) () - (set-gdb-instance-pending-triggers - instance - (delq '(, trigger) - (gdb-instance-pending-triggers instance))) - (let ((buf (gdb-get-instance-buffer instance - '(, buf-key)))) - (and buf - (save-excursion - (set-buffer buf) - (let ((p (point)) - (buffer-read-only nil)) - (delete-region (point-min) (point-max)) - (insert-buffer (gdb-get-create-instance-buffer - instance - 'gdb-partial-output-buffer)) - (goto-char p)))))))) - -(defmacro def-gdb-auto-updated-buffer - (buffer-key trigger-name gdb-command output-handler-name) - (` - (progn - (def-gdb-auto-update-trigger (, trigger-name) - ;; The demand predicate: - (lambda (instance) - (gdb-get-instance-buffer instance '(, buffer-key))) - (, gdb-command) - (, output-handler-name)) - (def-gdb-auto-update-handler (, output-handler-name) - (, trigger-name) (, buffer-key))))) - - - -;; -;; Breakpoint buffers -;; -;; These display the output of `info breakpoints'. -;; - - -(gdb-set-instance-buffer-rules 'gdb-breakpoints-buffer - 'gdb-breakpoints-buffer-name - 'gud-breakpoints-mode) - -(def-gdb-auto-updated-buffer gdb-breakpoints-buffer - ;; This defines the auto update rule for buffers of type - ;; `gdb-breakpoints-buffer'. - ;; - ;; It defines a function to serve as the annotation handler that - ;; handles the `foo-invalidated' message. That function is called: - gdb-invalidate-breakpoints - - ;; To update the buffer, this command is sent to gdb. - "server info breakpoints\n" - - ;; This also defines a function to be the handler for the output - ;; from the command above. That function will copy the output into - ;; the appropriately typed buffer. That function will be called: - gdb-info-breakpoints-handler) - -(defun gdb-breakpoints-buffer-name (instance) - (save-excursion - (set-buffer (process-buffer (gdb-instance-process instance))) - (concat "*breakpoints of " (gdb-instance-target-string instance) "*"))) - -(defun gud-display-breakpoints-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-display-buffer - (gdb-get-create-instance-buffer instance - 'gdb-breakpoints-buffer))) - -(defun gud-frame-breakpoints-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-frame-buffer - (gdb-get-create-instance-buffer instance - 'gdb-breakpoints-buffer))) - -(defvar gud-breakpoints-mode-map nil) -(setq gud-breakpoints-mode-map (make-keymap)) -(suppress-keymap gud-breakpoints-mode-map) -(define-key gud-breakpoints-mode-map " " 'gud-toggle-bp-this-line) -(define-key gud-breakpoints-mode-map "d" 'gud-delete-bp-this-line) - -(defun gud-breakpoints-mode () - "Major mode for gud breakpoints. - -\\{gud-breakpoints-mode-map}" - (setq major-mode 'gud-breakpoints-mode) - (setq mode-name "Breakpoints") - (use-local-map gud-breakpoints-mode-map) - (setq buffer-read-only t) - (gdb-invalidate-breakpoints gdb-buffer-instance)) - -(defun gud-toggle-bp-this-line () - (interactive) - (save-excursion - (beginning-of-line 1) - (if (not (looking-at "\\([0-9]*\\)\\s-*\\S-*\\s-*\\S-*\\s-*\\(.\\)")) - (error "Not recognized as breakpoint line (demo foo).") - (gdb-instance-enqueue-idle-input - gdb-buffer-instance - (list - (concat - (if (eq ?y (char-after (match-beginning 2))) - "server disable " - "server enable ") - (buffer-substring (match-beginning 0) - (match-end 1)) - "\n") - '(lambda () nil))) - ))) - -(defun gud-delete-bp-this-line () - (interactive) - (save-excursion - (beginning-of-line 1) - (if (not (looking-at "\\([0-9]*\\)\\s-*\\S-*\\s-*\\S-*\\s-*\\(.\\)")) - (error "Not recognized as breakpoint line (demo foo).") - (gdb-instance-enqueue-idle-input - gdb-buffer-instance - (list - (concat - "server delete " - (buffer-substring (match-beginning 0) - (match-end 1)) - "\n") - '(lambda () nil))) - ))) - - - - -;; -;; Frames buffers. These display a perpetually correct bactracktrace -;; (from the command `where'). -;; -;; Alas, if your stack is deep, they are costly. -;; - -(gdb-set-instance-buffer-rules 'gdb-stack-buffer - 'gdb-stack-buffer-name - 'gud-frames-mode) - -(def-gdb-auto-updated-buffer gdb-stack-buffer - gdb-invalidate-frames - "server where\n" - gdb-info-frames-handler) - -(defun gdb-stack-buffer-name (instance) - (save-excursion - (set-buffer (process-buffer (gdb-instance-process instance))) - (concat "*stack frames of " - (gdb-instance-target-string instance) "*"))) - -(defun gud-display-stack-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-display-buffer - (gdb-get-create-instance-buffer instance - 'gdb-stack-buffer))) - -(defun gud-frame-stack-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-frame-buffer - (gdb-get-create-instance-buffer instance - 'gdb-stack-buffer))) - -(defvar gud-frames-mode-map nil) -(setq gud-frames-mode-map (make-keymap)) -(suppress-keymap gud-frames-mode-map) -(define-key gud-frames-mode-map [mouse-2] - 'gud-frames-select-by-mouse) - -(defun gud-frames-mode () - "Major mode for gud frames. - -\\{gud-frames-mode-map}" - (setq major-mode 'gud-frames-mode) - (setq mode-name "Frames") - (setq buffer-read-only t) - (use-local-map gud-frames-mode-map) - (gdb-invalidate-frames gdb-buffer-instance)) - -(defun gud-get-frame-number () - (save-excursion - (let* ((pos (re-search-backward "^#\\([0-9]*\\)" nil t)) - (n (or (and pos - (string-to-int - (buffer-substring (match-beginning 1) - (match-end 1)))) - 0))) - n))) - -(defun gud-frames-select-by-mouse (e) - (interactive "e") - (let (selection) - (save-excursion - (set-buffer (window-buffer (posn-window (event-end e)))) - (save-excursion - (goto-char (posn-point (event-end e))) - (setq selection (gud-get-frame-number)))) - (select-window (posn-window (event-end e))) - (save-excursion - (set-buffer (gdb-get-instance-buffer (gdb-needed-default-instance) 'gud)) - (gud-call "fr %p" selection) - (gud-display-frame)))) - - -;; -;; Registers buffers -;; - -(def-gdb-auto-updated-buffer gdb-registers-buffer - gdb-invalidate-registers - "server info registers\n" - gdb-info-registers-handler) - -(gdb-set-instance-buffer-rules 'gdb-registers-buffer - 'gdb-registers-buffer-name - 'gud-registers-mode) - -(defvar gud-registers-mode-map nil) -(setq gud-registers-mode-map (make-keymap)) -(suppress-keymap gud-registers-mode-map) - -(defun gud-registers-mode () - "Major mode for gud registers. - -\\{gud-registers-mode-map}" - (setq major-mode 'gud-registers-mode) - (setq mode-name "Registers") - (setq buffer-read-only t) - (use-local-map gud-registers-mode-map) - (gdb-invalidate-registers gdb-buffer-instance)) - -(defun gdb-registers-buffer-name (instance) - (save-excursion - (set-buffer (process-buffer (gdb-instance-process instance))) - (concat "*registers of " (gdb-instance-target-string instance) "*"))) - -(defun gud-display-registers-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-display-buffer - (gdb-get-create-instance-buffer instance - 'gdb-registers-buffer))) - -(defun gud-frame-registers-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-frame-buffer - (gdb-get-create-instance-buffer instance - 'gdb-registers-buffer))) - - - -;;;; Menu windows: - - -;; MENU-LIST is ((option option option...) (option option ...)...) -;; -(defun gud-display-menu (menu-list) - (setq fill-column (min 120 (- (window-width) - (min 8 (window-width))))) - (while menu-list - (mapcar (function (lambda (x) (insert (symbol-name x) " "))) (car menu-list)) - (fill-paragraph nil) - (insert "\n\n") - (setq menu-list (cdr menu-list))) - (goto-char (point-min)) - (while (re-search-forward "\\([^ \n]+\\)\\(\n\\| \\)" nil t) - (put-text-property (match-beginning 1) (match-end 1) - 'mouse-face 'highlight)) - (goto-char (point-min))) - -(defun gud-goto-menu (menu) - (setq gud-menu-position menu) - (let ((buffer-read-only nil)) - (delete-region (point-min) (point-max)) - (gud-display-menu menu))) - -(defun gud-menu-pick (event) - "Choose an item from a gdb command menu." - (interactive "e") - (let (choice) - (save-excursion - (set-buffer (window-buffer (posn-window (event-start event)))) - (goto-char (posn-point (event-start event))) - (let (beg end) - (skip-chars-forward "^ \t\n") - (setq end (point)) - (skip-chars-backward "^ \t\n") - (setq beg (point)) - (setq choice (buffer-substring beg end)) - (message choice) - (gud-invoke-menu (intern choice)))))) - -(defun gud-invoke-menu (symbol) - (let ((meaning (assoc symbol gud-menu-rules))) - (cond - ((and (consp meaning) - (consp (car (cdr meaning)))) - (gud-goto-menu (car (cdr meaning)))) - (meaning (call-interactively (car (cdr meaning))))))) - - - -(gdb-set-instance-buffer-rules 'gdb-command-buffer - 'gdb-command-buffer-name - 'gud-command-mode) - -(defvar gud-command-mode-map nil) -(setq gud-command-mode-map (make-keymap)) -(suppress-keymap gud-command-mode-map) -(define-key gud-command-mode-map [mouse-2] 'gud-menu-pick) - -(defun gud-command-mode () - "Major mode for gud menu. - -\\{gud-command-mode-map}" (interactive) (setq major-mode 'gud-command-mode) - (setq mode-name "Menu") (setq buffer-read-only t) (use-local-map - gud-command-mode-map) (make-variable-buffer-local 'gud-menu-position) - (if (not gud-menu-position) (gud-goto-menu gud-running-menu))) - -(defun gdb-command-buffer-name (instance) - (save-excursion - (set-buffer (process-buffer (gdb-instance-process instance))) - (concat "*menu of " (gdb-instance-target-string instance) "*"))) - -(defun gud-display-command-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-display-buffer - (gdb-get-create-instance-buffer instance - 'gdb-command-buffer) - 6)) - -(defun gud-frame-command-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-frame-buffer - (gdb-get-create-instance-buffer instance - 'gdb-command-buffer))) - -(defvar gud-selected-menu-titles ()) -(setq gud-selected-menu-titles - '(RUNNING STACK DATA BREAKPOINTS FILES)) - -(setq gud-running-menu - (list - '(RUNNING stack breakpoints files) - '(target run next step continue finish stepi kill help-running))) - -(setq gud-stack-menu - (list - '(running STACK breakpoints files) - '(up down frame backtrace return help-stack))) - -(setq gud-data-menu - (list - '(running stack DATA breakpoints files) - '(whatis ptype print set display undisplay disassemble help-data))) - -(setq gud-breakpoints-menu - (list - '(running stack BREAKPOINTS files) - '(awatch rwatch watch break delete enable disable condition ignore help-breakpoints))) - -(setq gud-files-menu - (list - '(running stack breakpoints FILES) - '(file core-file help-files) - '(exec-file load symbol-file add-symbol-file sharedlibrary))) - -(setq gud-menu-rules - (list - (list 'running gud-running-menu) - (list 'RUNNING gud-running-menu) - (list 'stack gud-stack-menu) - (list 'STACK gud-stack-menu) - (list 'data gud-data-menu) - (list 'DATA gud-data-menu) - (list 'breakpoints gud-breakpoints-menu) - (list 'BREAKPOINTS gud-breakpoints-menu) - (list 'files gud-files-menu) - (list 'FILES gud-files-menu) - - (list 'target 'gud-target) - (list 'kill 'gud-kill) - (list 'stepi 'gud-stepi) - (list 'step 'gud-step) - (list 'next 'gud-next) - (list 'finish 'gud-finish) - (list 'continue 'gud-cont) - (list 'run 'gud-run) - - (list 'backtrace 'gud-backtrace) - (list 'frame 'gud-frame) - (list 'down 'gud-down) - (list 'up 'gud-up) - (list 'return 'gud-return) - - (list 'file 'gud-file) - (list 'core-file 'gud-core-file) - (list 'cd 'gud-cd) - - (list 'exec-file 'gud-exec-file) - (list 'load 'gud-load) - (list 'symbol-file 'gud-symbol-file) - (list 'add-symbol-file 'gud-add-symbol-file) - (list 'sharedlibrary 'gud-sharedlibrary) - )) - - - - -(defun gdb-call-showing-gud (instance command) - (gud-display-gud-buffer instance) - (comint-input-sender (gdb-instance-process instance) command)) - -(defvar gud-target-history ()) - -(defun gud-temp-buffer-show (buf) - (let ((ow (selected-window))) - (unwind-protect - (progn - (pop-to-buffer buf) - - ;; This insertion works around a bug in emacs. - ;; The bug is that all the empty space after a - ;; highlighted word that terminates a buffer - ;; gets highlighted. That's really ugly, so - ;; make sure a highlighted word can't ever - ;; terminate the buffer. - (goto-char (point-max)) - (insert "\n") - (goto-char (point-min)) - - (if (< (window-height) 10) - (enlarge-window (- 10 (window-height))))) - (select-window ow)))) - -(defun gud-target (instance command) - (interactive - (let* ((instance (gdb-needed-default-instance)) - (temp-buffer-show-function (function gud-temp-buffer-show)) - (target-name (completing-read (format "Target type: ") - '(("remote") - ("core") - ("child") - ("exec")) - nil - t - nil - 'gud-target-history))) - (list instance - (cond - ((equal target-name "child") "run") - - ((equal target-name "core") - (concat "target core " - (read-file-name "core file: " - nil - "core" - t))) - - ((equal target-name "exec") - (concat "target exec " - (read-file-name "exec file: " - nil - "a.out" - t))) - - ((equal target-name "remote") - (concat "target remote " - (read-file-name "serial line for remote: " - "/dev/" - "ttya" - t))) - - (t "echo No such target command!"))))) - - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - -(defun gud-backtrace () - (interactive) - (let ((instance (gdb-needed-default-instance))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) - "backtrace")))) - -(defun gud-frame () - (interactive) - (let ((instance (gdb-needed-default-instance))) - (apply comint-input-sender - (list (gdb-instance-process instance) - "frame")))) - -(defun gud-return (instance command) - (interactive - (let ((temp-buffer-show-function (function gud-temp-buffer-show))) - (list (gdb-needed-default-instance) - (concat "return " (read-string "Expression to return: "))))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - - -(defun gud-file (instance command) - (interactive - (let ((temp-buffer-show-function (function gud-temp-buffer-show))) - (list (gdb-needed-default-instance) - (concat "file " (read-file-name "Executable to debug: " - nil - "a.out" - t))))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - -(defun gud-core-file (instance command) - (interactive - (let ((temp-buffer-show-function (function gud-temp-buffer-show))) - (list (gdb-needed-default-instance) - (concat "core " (read-file-name "Core file to debug: " - nil - "core-file" - t))))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - -(defun gud-cd (dir) - (interactive "FChange GDB's default directory: ") - (let ((instance (gdb-needed-default-instance))) - (save-excursion - (set-buffer (gdb-get-instance-buffer instance 'gud)) - (cd dir)) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) - (concat "cd " dir))))) - - -(defun gud-exec-file (instance command) - (interactive - (let ((temp-buffer-show-function (function gud-temp-buffer-show))) - (list (gdb-needed-default-instance) - (concat "exec-file " (read-file-name "Init memory from executable: " - nil - "a.out" - t))))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - -(defun gud-load (instance command) - (interactive - (let ((temp-buffer-show-function (function gud-temp-buffer-show))) - (list (gdb-needed-default-instance) - (concat "load " (read-file-name "Dynamicly load from file: " - nil - "a.out" - t))))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - -(defun gud-symbol-file (instance command) - (interactive - (let ((temp-buffer-show-function (function gud-temp-buffer-show))) - (list (gdb-needed-default-instance) - (concat "symbol-file " (read-file-name "Read symbol table from file: " - nil - "a.out" - t))))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - - -(defun gud-add-symbol-file (instance command) - (interactive - (let ((temp-buffer-show-function (function gud-temp-buffer-show))) - (list (gdb-needed-default-instance) - (concat "add-symbol-file " - (read-file-name "Add symbols from file: " - nil - "a.out" - t))))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - - -(defun gud-sharedlibrary (instance command) - (interactive - (let ((temp-buffer-show-function (function gud-temp-buffer-show))) - (list (gdb-needed-default-instance) - (concat "sharedlibrary " - (read-string "Load symbols for files matching regexp: "))))) - (gud-display-gud-buffer instance) - (apply comint-input-sender - (list (gdb-instance-process instance) command))) - - - - - -;;;; Window management - - -;;; FIXME: This should only return true for buffers in the current instance -(defun gud-protected-buffer-p (buffer) - "Is BUFFER a buffer which we want to leave displayed?" - (save-excursion - (set-buffer buffer) - (or gdb-buffer-type - overlay-arrow-position))) - -;;; The way we abuse the dedicated-p flag is pretty gross, but seems -;;; to do the right thing. Seeing as there is no way for Lisp code to -;;; get at the use_time field of a window, I'm not sure there exists a -;;; more elegant solution without writing C code. - -(defun gud-display-buffer (buf &optional size) - (let ((must-split nil) - (answer nil)) - (unwind-protect - (progn - (walk-windows - '(lambda (win) - (if (gud-protected-buffer-p (window-buffer win)) - (set-window-dedicated-p win t)))) - (setq answer (get-buffer-window buf)) - (if (not answer) - (let ((window (get-lru-window))) - (if window - (progn - (set-window-buffer window buf) - (setq answer window)) - (setq must-split t))))) - (walk-windows - '(lambda (win) - (if (gud-protected-buffer-p (window-buffer win)) - (set-window-dedicated-p win nil))))) - (if must-split - (let* ((largest (get-largest-window)) - (cur-size (window-height largest)) - (new-size (and size (< size cur-size) (- cur-size size)))) - (setq answer (split-window largest new-size)) - (set-window-buffer answer buf))) - answer)) - -(defun existing-source-window (buffer) - (catch 'found - (save-excursion - (walk-windows - (function - (lambda (win) - (if (and overlay-arrow-position - (eq (window-buffer win) - (marker-buffer overlay-arrow-position))) - (progn - (set-window-buffer win buffer) - (throw 'found win)))))) - nil))) - -(defun gud-display-source-buffer (buffer) - (or (existing-source-window buffer) - (gud-display-buffer buffer))) - -(defun gud-frame-buffer (buf) - (save-excursion - (set-buffer buf) - (make-frame))) - - - -;;; Shared keymap initialization: - -(defun make-windows-menu (map) - (define-key map [menu-bar displays] - (cons "GDB-Windows" (make-sparse-keymap "GDB-Windows"))) - (define-key map [menu-bar displays gdb] - '("Gdb" . gud-display-gud-buffer)) - (define-key map [menu-bar displays registers] - '("Registers" . gud-display-registers-buffer)) - (define-key map [menu-bar displays frames] - '("Stack" . gud-display-stack-buffer)) - (define-key map [menu-bar displays breakpoints] - '("Breakpoints" . gud-display-breakpoints-buffer)) - (define-key map [menu-bar displays commands] - '("Commands" . gud-display-command-buffer))) - -(defun gud-display-gud-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-display-buffer - (gdb-get-create-instance-buffer instance 'gud))) - -(make-windows-menu gud-breakpoints-mode-map) -(make-windows-menu gud-frames-mode-map) -(make-windows-menu gud-registers-mode-map) - - - -(defun make-frames-menu (map) - (define-key map [menu-bar frames] - (cons "GDB-Frames" (make-sparse-keymap "GDB-Frames"))) - (define-key map [menu-bar frames gdb] - '("Gdb" . gud-frame-gud-buffer)) - (define-key map [menu-bar frames registers] - '("Registers" . gud-frame-registers-buffer)) - (define-key map [menu-bar frames frames] - '("Stack" . gud-frame-stack-buffer)) - (define-key map [menu-bar frames breakpoints] - '("Breakpoints" . gud-frame-breakpoints-buffer)) - (define-key map [menu-bar displays commands] - '("Commands" . gud-display-command-buffer))) - -(defun gud-frame-gud-buffer (instance) - (interactive (list (gdb-needed-default-instance))) - (gud-frame-buffer - (gdb-get-create-instance-buffer instance 'gud))) - -(make-frames-menu gud-breakpoints-mode-map) -(make-frames-menu gud-frames-mode-map) -(make-frames-menu gud-registers-mode-map) - - -(defun gud-gdb-find-file (f) - (find-file-noselect f)) - -;;;###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 (read-from-minibuffer "Run gdb (like this): " - (if (consp gud-gdb-history) - (car gud-gdb-history) - "gdb ") - nil nil - '(gud-gdb-history . 1)))) - (gud-overload-functions - '((gud-massage-args . gud-gdb-massage-args) - (gud-marker-filter . gud-gdb-marker-filter) - (gud-find-file . gud-gdb-find-file) - )) - - (let* ((words (gud-chop-words command-line)) - (program (car words)) - (file-word (let ((w (cdr words))) - (while (and w (= ?- (aref (car w) 0))) - (setq w (cdr w))) - (car w))) - (args (delq file-word (cdr words))) - (file (expand-file-name file-word)) - (filepart (file-name-nondirectory file)) - (buffer-name (concat "*gud-" filepart "*"))) - (setq gdb-first-time (not (get-buffer-process buffer-name)))) - - (gud-common-init command-line) - - (gud-def gud-break "break %f:%l" "\C-b" "Set breakpoint at current line.") - (gud-def gud-tbreak "tbreak %f:%l" "\C-t" "Set breakpoint at current line.") - (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") - (gud-def gud-kill "kill" nil "Kill the program.") - (gud-def gud-run "run" nil "Run the program.") - (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") - (gud-def gud-step "step %p" "\C-s" "Step one source line with display.") - (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") - (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") - (gud-def gud-cont "cont" "\C-r" "Continue with display.") - (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.") - - (setq comint-prompt-regexp "^(.*gdb[+]?) *") - (setq comint-input-sender 'gdb-send) - (run-hooks 'gdb-mode-hook) - (let ((instance - (make-gdb-instance (get-buffer-process (current-buffer))) - )) - (if gdb-first-time (gdb-clear-inferior-io instance))) - ) - - -;; ====================================================================== -;; 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-massage-args (file args) - (cons file args)) - -(defun gud-sdb-marker-filter (string) - (cond - ;; System V Release 3.2 uses this format - ((string-match "\\(^0x\\w* in \\|^\\|\n\\)\\([^:\n]*\\):\\([0-9]*\\):.*\n" - string) - (setq gud-last-frame - (cons - (substring string (match-beginning 2) (match-end 2)) - (string-to-int - (substring string (match-beginning 3) (match-end 3)))))) - ;; System V Release 4.0 - ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n" - string) - (setq gud-sdb-lastfile - (substring string (match-beginning 2) (match-end 2)))) - ((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):" string)) - (setq gud-last-frame - (cons - gud-sdb-lastfile - (string-to-int - (substring string (match-beginning 1) (match-end 1)))))) - (t - (setq gud-sdb-lastfile nil))) - 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 (read-from-minibuffer "Run sdb (like this): " - (if (consp gud-sdb-history) - (car gud-sdb-history) - "sdb ") - nil nil - '(gud-sdb-history . 1)))) - (if (and gud-sdb-needs-tags - (not (and (boundp 'tags-file-name) (file-exists-p tags-file-name)))) - (error "The sdb support requires a valid tags table to work.")) - (gud-overload-functions '((gud-massage-args . gud-sdb-massage-args) - (gud-marker-filter . gud-sdb-marker-filter) - (gud-find-file . gud-sdb-find-file) - )) - - (gud-common-init command-line) - - (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\\)\\*") - (run-hooks 'sdb-mode-hook) - ) - -;; ====================================================================== -;; dbx functions - -;;; History of argument lists passed to dbx. -(defvar gud-dbx-history nil) - -(defun gud-dbx-massage-args (file args) - (cons file args)) - -(defun gud-dbx-marker-filter (string) - (if (or (string-match - "stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" - string) - (string-match - "signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" - string)) - (setq gud-last-frame - (cons - (substring string (match-beginning 2) (match-end 2)) - (string-to-int - (substring string (match-beginning 1) (match-end 1)))))) - string) - -(defun gud-dbx-find-file (f) - (find-file-noselect f)) - -;;;###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 (read-from-minibuffer "Run dbx (like this): " - (if (consp gud-dbx-history) - (car gud-dbx-history) - "dbx ") - nil nil - '(gud-dbx-history . 1)))) - (gud-overload-functions '((gud-massage-args . gud-dbx-massage-args) - (gud-marker-filter . gud-dbx-marker-filter) - (gud-find-file . gud-dbx-find-file) - )) - - (gud-common-init command-line) - - (gud-def gud-break "file \"%d%f\"\nstop at %l" - "\C-b" "Set breakpoint at current line.") -;; (gud-def gud-break "stop at \"%f\":%l" -;; "\C-b" "Set breakpoint at current line.") - (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-cont "cont" "\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-print "print %e" "\C-p" "Evaluate C expression at point.") - - (setq comint-prompt-regexp "^[^)]*dbx) *") - (run-hooks 'dbx-mode-hook) - ) - -;; ====================================================================== -;; xdb (HP PARISC debugger) functions - -;;; History of argument lists passed to xdb. -(defvar gud-xdb-history nil) - -(defvar 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.") - -(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 (cons file result))) - args)) - -(defun gud-xdb-file-name (f) - "Transform a relative pathname to a full pathname in xdb mode" - (let ((result nil)) - (if (file-exists-p f) - (setq result (expand-file-name f)) - (let ((directories gud-xdb-directories)) - (while directories - (let ((path (concat (car directories) "/" f))) - (if (file-exists-p path) - (setq result (expand-file-name path) - directories nil))) - (setq directories (cdr directories))))) - result)) - -;; xdb does not print the lines all at once, so we have to accumulate them -(defvar gud-xdb-accumulation "") - -(defun gud-xdb-marker-filter (string) - (let (result) - (if (or (string-match comint-prompt-regexp string) - (string-match ".*\012" string)) - (setq result (concat gud-xdb-accumulation string) - gud-xdb-accumulation "") - (setq gud-xdb-accumulation (concat gud-xdb-accumulation string))) - (if result - (if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\):" result) - (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):" - result)) - (let ((line (string-to-int - (substring result (match-beginning 2) (match-end 2)))) - (file (gud-xdb-file-name - (substring result (match-beginning 1) (match-end 1))))) - (if file - (setq gud-last-frame (cons file line)))))) - (or result ""))) - -(defun gud-xdb-find-file (f) - (let ((realf (gud-xdb-file-name f))) - (if realf (find-file-noselect realf)))) - -;;;###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 (read-from-minibuffer "Run xdb (like this): " - (if (consp gud-xdb-history) - (car gud-xdb-history) - "xdb ") - nil nil - '(gud-xdb-history . 1)))) - (gud-overload-functions '((gud-massage-args . gud-xdb-massage-args) - (gud-marker-filter . gud-xdb-marker-filter) - (gud-find-file . gud-xdb-find-file))) - - (gud-common-init command-line) - - (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 "^>") - (make-local-variable 'gud-xdb-accumulation) - (setq gud-xdb-accumulation "") - (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) - (cons "-d" (cons file (cons "-emacs" 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. -(defvar gud-perldb-marker-acc "") - -(defun gud-perldb-marker-filter (string) - (save-match-data - (setq gud-perldb-marker-acc (concat gud-perldb-marker-acc string)) - (let ((output "")) - - ;; Process all the complete markers in this chunk. - (while (string-match "^\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" - gud-perldb-marker-acc) - (setq - - ;; Extract the frame position from the marker. - gud-last-frame - (cons (substring gud-perldb-marker-acc (match-beginning 1) (match-end 1)) - (string-to-int (substring gud-perldb-marker-acc - (match-beginning 2) - (match-end 2)))) - - ;; 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-perldb-marker-acc 0 (match-beginning 0))) - - ;; Set the accumulator to the remaining text. - gud-perldb-marker-acc (substring gud-perldb-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-perldb-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-perldb-marker-acc) - (progn - ;; Everything before the potential marker start can be output. - (setq output (concat output (substring gud-perldb-marker-acc - 0 (match-beginning 0)))) - - ;; Everything after, we save, to combine with later input. - (setq gud-perldb-marker-acc - (substring gud-perldb-marker-acc (match-beginning 0)))) - - (setq output (concat output gud-perldb-marker-acc) - gud-perldb-marker-acc "")) - - output))) - -(defun gud-perldb-find-file (f) - (find-file-noselect f)) - -;;;###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 (read-from-minibuffer "Run perldb (like this): " - (if (consp gud-perldb-history) - (car gud-perldb-history) - "perl ") - nil nil - '(gud-perldb-history . 1)))) - (gud-overload-functions '((gud-massage-args . gud-perldb-massage-args) - (gud-marker-filter . gud-perldb-marker-filter) - (gud-find-file . gud-perldb-find-file) - )) - - (gud-common-init command-line) - - (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.") - (gud-def gud-remove "d %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 "%e" "\C-p" "Evaluate perl expression at point.") - - (setq comint-prompt-regexp "^ DB<[0-9]+> ") - (run-hooks 'perldb-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 -;;; comint-input-sender, 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) - - -(defvar gdbish-comint-mode-map (copy-keymap comint-mode-map)) -(define-key gdbish-comint-mode-map "\C-c\M-\C-r" 'gud-display-registers-buffer) -(define-key gdbish-comint-mode-map "\C-c\M-\C-f" 'gud-display-stack-buffer) -(define-key gdbish-comint-mode-map "\C-c\M-\C-b" 'gud-display-breakpoints-buffer) - -(make-windows-menu gdbish-comint-mode-map) -(make-frames-menu gdbish-comint-mode-map) - -(defun gud-mode () - "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, -or M-x xdb. Each entry point finishes by executing a hook; `gdb-mode-hook', -`sdb-mode-hook', `dbx-mode-hook' or `xdb-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." - (interactive) - (comint-mode) - (setq major-mode 'gud-mode) - (setq mode-name "Debugger") - (setq mode-line-process '(": %s")) - (use-local-map (copy-keymap gdbish-comint-mode-map)) - (setq gud-last-frame nil) - (make-local-variable 'comint-prompt-regexp) - (make-local-variable 'gud-delete-prompt-marker) - (setq gud-delete-prompt-marker (make-marker)) - (run-hooks 'gud-mode-hook) -) - -(defvar gud-comint-buffer nil) - -;; Chop STRING into words separated by SPC or TAB and return a list of them. -(defun gud-chop-words (string) - (let ((i 0) (beg 0) - (len (length string)) - (words nil)) - (while (< i len) - (if (memq (aref string i) '(?\t ? )) - (progn - (setq words (cons (substring string beg i) words) - beg (1+ i)) - (while (and (< beg len) (memq (aref string beg) '(?\t ? ))) - (setq beg (1+ beg))) - (setq i (1+ beg))) - (setq i (1+ i)))) - (if (< beg len) - (setq words (cons (substring string beg) words))) - (nreverse words))) - -(defvar gud-target-name "--unknown--" - "The apparent name of the program being debugged in a gud buffer. -For sure this the root string used in smashing together the gud -buffer's name, even if that doesn't happen to be the name of a -program.") - -;; Perform initializations common to all debuggers. -(defun gud-common-init (command-line) - (let* ((words (gud-chop-words command-line)) - (program (car words)) - (file-word (let ((w (cdr words))) - (while (and w (= ?- (aref (car w) 0))) - (setq w (cdr w))) - (car w))) - (args (delq file-word (cdr words))) - (file (expand-file-name file-word)) - (filepart (file-name-nondirectory file)) - (buffer-name (concat "*gud-" filepart "*"))) - (switch-to-buffer buffer-name) - (setq default-directory (file-name-directory file)) - (or (bolp) (newline)) - (insert "Current directory is " default-directory "\n") - (let ((old-instance gdb-buffer-instance)) - (apply 'make-comint (concat "gud-" filepart) program nil - (gud-massage-args file args)) - (gud-mode) - (make-variable-buffer-local 'old-gdb-buffer-instance) - (setq old-gdb-buffer-instance old-instance)) - (make-variable-buffer-local 'gud-target-name) - (setq gud-target-name filepart)) - (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 () - (cond ((eq major-mode 'gud-mode) - (setq gud-comint-buffer (current-buffer))))) - -;; 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 ((inhibit-quit t)) - (save-excursion - (set-buffer (process-buffer proc)) - (let (moving output-after-point) - (save-excursion - (goto-char (process-mark proc)) - ;; If we have been so requested, delete the debugger prompt. - (if (marker-buffer gud-delete-prompt-marker) - (progn - (delete-region (point) gud-delete-prompt-marker) - (set-marker gud-delete-prompt-marker nil))) - (insert-before-markers (gud-marker-filter string)) - (setq moving (= (point) (process-mark proc))) - (setq output-after-point (< (point) (process-mark proc))) - ;; 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. - (if (and gud-last-frame - (not output-after-point) - (get-buffer-window (current-buffer))) - (gud-display-frame))) - (if moving (goto-char (process-mark proc))))))) - -(defun gud-proc-died (proc) - ;; Stop displaying an arrow in a source file. - (setq overlay-arrow-position nil) - - ;; Kill the dummy process, so that C-x C-c won't worry about it. - (save-excursion - (set-buffer (process-buffer proc)) - (kill-process - (get-buffer-process - (gdb-get-instance-buffer gdb-buffer-instance 'gdb-inferior-io)))) - ) - -(defun gud-sentinel (proc msg) - (cond ((null (buffer-name (process-buffer proc))) - ;; buffer killed - (gud-proc-died proc) - (set-process-buffer proc nil)) - ((memq (process-status proc) '(signal exit)) - (gud-proc-died proc) - - ;; Fix the mode line. - (setq mode-line-process - (concat ": " - (symbol-name (process-status proc)))) - (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)) - ;; Force mode line redisplay soon - (set-buffer-modified-p (buffer-modified-p)) - (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-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) - (if gud-last-frame - (progn -; (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* ((buffer (gud-find-file true-file)) - (window (gud-display-source-buffer buffer)) - (pos)) - (if (not window) - (error "foo bar baz")) -;;; (if (equal buffer (current-buffer)) -;;; nil -;;; (setq buffer-read-only nil)) - (save-excursion -;;; (setq buffer-read-only t) - (set-buffer buffer) - (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)))) - (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)))) - (if (string-match "\\(.*\\)%f\\(.*\\)" str) - (setq str (concat - (substring str (match-beginning 1) (match-end 1)) - (file-name-nondirectory (if insource - (buffer-file-name) - (car gud-last-frame))) - (substring str (match-beginning 2) (match-end 2))))) - (if (string-match "\\(.*\\)%d\\(.*\\)" str) - (setq str (concat - (substring str (match-beginning 1) (match-end 1)) - (file-name-directory (if insource - (buffer-file-name) - (car gud-last-frame))) - (substring str (match-beginning 2) (match-end 2))))) - (if (string-match "\\(.*\\)%l\\(.*\\)" str) - (setq str (concat - (substring str (match-beginning 1) (match-end 1)) - (if insource - (save-excursion - (beginning-of-line) - (save-restriction (widen) - (1+ (count-lines 1 (point))))) - (cdr gud-last-frame)) - (substring str (match-beginning 2) (match-end 2))))) - (if (string-match "\\(.*\\)%e\\(.*\\)" str) - (setq str (concat - (substring str (match-beginning 1) (match-end 1)) - (find-c-expr) - (substring str (match-beginning 2) (match-end 2))))) - (if (string-match "\\(.*\\)%a\\(.*\\)" str) - (setq str (concat - (substring str (match-beginning 1) (match-end 1)) - (gud-read-address) - (substring str (match-beginning 2) (match-end 2))))) - (if (string-match "\\(.*\\)%p\\(.*\\)" str) - (setq str (concat - (substring str (match-beginning 1) (match-end 1)) - (if arg (int-to-string arg) "") - (substring str (match-beginning 2) (match-end 2))))) - ) - str - ) - -(defun gud-read-address () - "Return a string containing the core-address found in the buffer at point." - (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))) - - ;; Arrange for the current prompt to get deleted. - (save-excursion - (set-buffer gud-comint-buffer) - (goto-char (process-mark proc)) - (beginning-of-line) - (if (looking-at comint-prompt-regexp) - (set-marker gud-delete-prompt-marker (point))) - (apply comint-input-sender (list proc command))))) - -(defun gud-refresh (&optional arg) - "Fix up a possibly garbled display, and redraw the arrow." - (interactive "P") - (recenter arg) - (or gud-last-frame (setq gud-last-frame gud-last-last-frame)) - (gud-display-frame)) - -;;; Code for parsing expressions out of C code. The single entry point is -;;; find-c-expr, which tries to return an lvalue expression from around point. -;;; -;;; The rest of this file is a hacked version of gdbsrc.el by -;;; Debby Ayers , -;;; Rich Schaefer Schlumberger, Austin, Tx. - -(defun find-c-expr () - "Returns the C expr that surrounds point." - (interactive) - (save-excursion - (let ((p) (expr) (test-expr)) - (setq p (point)) - (setq expr (expr-cur)) - (setq test-expr (expr-prev)) - (while (expr-compound test-expr expr) - (setq expr (cons (car test-expr) (cdr expr))) - (goto-char (car expr)) - (setq test-expr (expr-prev))) - (goto-char p) - (setq test-expr (expr-next)) - (while (expr-compound expr test-expr) - (setq expr (cons (car expr) (cdr test-expr))) - (setq test-expr (expr-next)) - ) - (buffer-substring (car expr) (cdr expr))))) - -(defun expr-cur () - "Returns the expr that point is in; point is set to beginning of 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 ((p (point)) (begin) (end)) - (expr-backward-sexp) - (setq begin (point)) - (expr-forward-sexp) - (setq end (point)) - (if (>= p end) - (progn - (setq begin p) - (goto-char p) - (expr-forward-sexp) - (setq end (point)) - ) - ) - (goto-char begin) - (cons begin end))) - -(defun expr-backward-sexp () - "Version of `backward-sexp' that catches errors." - (condition-case nil - (backward-sexp) - (error t))) - -(defun expr-forward-sexp () - "Version of `forward-sexp' that catches errors." - (condition-case nil - (forward-sexp) - (error t))) - -(defun expr-prev () - "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)) - (expr-backward-sexp) - (setq begin (point)) - (expr-forward-sexp) - (setq end (point)) - (goto-char begin) - (cons begin end))) - -(defun expr-next () - "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)) - (expr-forward-sexp) - (expr-forward-sexp) - (setq end (point)) - (expr-backward-sexp) - (setq begin (point)) - (cons begin end))) - -(defun expr-compound-sep (span-start span-end) - "Returns '.' for '->' & '.', returns ' ' for white space, -returns '?' for other punctuation." - (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 expr-compound (first second) - "Non-nil if concatenating FIRST and SECOND makes a single C token. -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 (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)))) - -(provide 'gud) - -;;; gud.el ends here