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|
;; ======================================================================
;; SmallEiffel debugger on GDB on Xemacs-21.
;;
;; Aug 28 1997 M.Mogaki
;; mmogaki@kanagawa.hitachi.co.jp
;;
;; print local variable and class attribute with `p' comand.
;;
;;; Alogorithm outline.
;; 1) if command like "p x" is typed,
;; try command "p _x" and "p C._x" to obtain reasonable printing.
;; 2) If it is a pointer to some object, gdb will prints as follows.
;; $1 = (T0 *) 0x40000000
;; 3) Try command "p *$1" to obtain class id of this.
;; Gdb will print as follows.
;; $2 = {id = 7 }
;; 4) Now we can try comand "p *(T7*)$1" to obtain desired printing
;; $3 = {id = 7 , _count = 5, _capacity = 7, _strage = 0x40000016 "STRING" }
;; 5) In case of dot notation like x.count,
;; split them into word like (x count).
;; apply 1~3 to obtain the class id of x.
;; Once class of x is known, we can try command
;; "p ((T7*)$3)._count"
;;
;; Histrory
;; Aug 28 1997 Original emacs version
;; May 2000 Xemacs-21.x
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(require 'gud)
(require 'gud-patch)
(defvar old-edb-buffer-instance nil)
(require 'gud-edb)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Replacement of gud-edb functions
;;
(defun gud-edb-marker-filter (string)
"A gud marker filter for edb."
;; Bogons don't tell us the process except through scoping crud.
(let ((instance (edb-proc->instance proc)))
(gud-edb-output-filter (edb-output-burst instance string))))
(defun edb-send (proc string)
"A comint send filter for edb.
This filter may simply queue output for a later time."
(let ((instance (edb-proc->instance proc)))
(gud-edb-input-filter string)
(edb-instance-enqueue-input instance (concat string "\n"))))
(defun edb (command-line)
"Run edb 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-shell-command "Run edb (like this): "
(if (consp gud-edb-history)
(car gud-edb-history)
"gdb ")
'(gud-edb-history . 1))))
(gud-overload-functions
'((gud-massage-args . gud-edb-massage-args)
(gud-marker-filter . gud-edb-marker-filter)
(gud-find-file . gud-edb-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 (and file-word (expand-file-name file-word)))
(filepart (if file (file-name-nondirectory file) ""))
(buffer-name (concat "*" "edb"
(and (string< "" filepart)
(concat "-" filepart)) "*")))
(setq edb-first-time (not (get-buffer-process buffer-name))))
(gud-common-init command-line "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 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 'edb-send)
(run-hooks 'edb-mode-hook)
(let ((instance
(make-edb-instance (get-buffer-process (current-buffer)))
))
(when edb-first-time
(edb-clear-inferior-io instance)
(edb-instance-enqueue-input instance "set height 1000\n")
(edb-instance-enqueue-input instance "set width 1000\n")
))
)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Edb i/o filter
;;; Trace for debugging
(defvar *edb-trace-buffer* nil)
(defun edb-trace-on ()
(setq *edb-trace-buffer* (get-buffer-create "edb-trace")))
(defun edb-trace-off ()
(setq *edb-trace-buffer* nil))
(defvar edb-trace-count 0)
(defun edb-trace-init ()
(setq edb-trace-count 0))
(defun edb-trace (&rest args)
(if *edb-trace-buffer*
(save-excursion
(set-buffer *edb-trace-buffer*)
(goto-char (point-max))
(insert (format "\n%d: " (setq edb-trace-count (+ edb-trace-count 1))))
(insert (apply #'format args))
)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Global varirables to save status.
(defvar edb-query-state nil)
(defvar edb-print-var-orig nil)
(defvar edb-print-var-seq nil)
(defvar edb-last-print-var nil)
(defvar edb-print-var nil)
(defvar edb-print-var-seq nil)
(defvar edb-target-var nil)
(defvar edb-target-cid nil)
(defun matched-string (str at)
(substring str (match-beginning at) (match-end at)))
;;
;; User input: p x.y
;; (sate,target,var,rest) command
;; (INIT,"",x,(y))
;; when No symbol "x" in current context
;; --> is it local var? --> (LOCAL,"",x,(y)) p _x
;; when Threre is no member named ...
;; --> check type of x --> (TYPE,x,y,()) p *(T0*)x
;; when $x = (Txx*)0x40....
;; --> reference --> (TYPE,$x,"",()) p *(T0*)$x
;; when $x = Something else
;; --> Result. --> (nil,x.y,*) ""
;;
;; (LOCAL,"",x,(y)) p _x
;; when No symbol "_x" in current context
;; --> try C._x --> (ATTR,"",x,(y)) p C._x
;; when $x = (Txx*)0x40....
;; --> known type reference --> (TYPE,$x,x,(y)) p *(T0*)$x
;; when $x = Something else
;; --> Result. --> (nil) ""
;;
;; (ATTR,"",x,(y))
;; when Threre is no member named ...
;; --> try feature call of Current --> (CTYPE,"C",x,(y)) p "*C"
;; when $x = (Txx*)0x40......
;; --> known type reference --> (TYPE,$x,x,(y)) p *(T0*)$x
;; when $x = Something else
;; --> Result. --> (nil) ""
;;
;; (CTYPE)
;; when $1 = {id=???}
;;; --> try feature call of target -->(FCALL,$x,x,(y)) p rT???x($x)
;; othewise
;;
;; (FCALL)
;; when $x = (Txx*)0x40......
;; --> known type reference --> (TYPE,$x,x,(y)) p *(T0*)$x
;; when $x = Something else
;; --> Result. --> (nil) ""
;;
;; (TYPE) p *(T0*)$x
;; when $y = {$id=???}
;; if more quorifier -->(VALUE,$x,y,()) p ((Txx*)$x)._y
;; if no more quorifier -->(VALUE,$x,x,()) p *(Txx*)$x
;;
;; (VALUE)
;; when Threre is no member named ...
;; --> try feature call --> (FCALL,$x,x,(y)) p rT???x($x)
;; when $x = (Txx*)0x40......
;; --> known type reference --> (TYPE,$x,x,(y)) p *(T0*)$x
;; when $x = Something else
;; --> Result. --> (nil) ""
;;
(defun gud-edb-input-filter (input)
(if edb-query-state
(edb-trace "||%s||" input)
(when (string-match "^ *p +\\([$A-Za-z_][.0-9A-Z_a-z]*\\)$" input)
(edb-trace-init)
(edb-trace "<<1 |%s|<<" input)
(setq edb-print-var-orig (matched-string input 1))
(setq edb-print-var-seq (reverse (split-string-at-dot edb-print-var-orig)))
(setq edb-last-print-var nil)
(setq edb-print-var (car edb-print-var-seq))
(setq edb-print-var-seq (cdr edb-print-var-seq))
(setq edb-target-var nil)
(setq edb-target-cid nil)
(setq edb-query-state 'INIT)
)))
(defun split-string-at-dot (str)
(let ((s nil)
(res nil)
(from 0)
(pos))
(while (string-match "\\([^.]*\\)\\." str)
(setq s (matched-string str 1))
(setq res (cons s res))
(setq str (substring str (+ 1 (match-end 1)))))
(cons str res)
))
(defvar last_str "")
(defun gud-edb-output-filter (str)
(when edb-query-state
(setq str (gud-edb-print-filter (concat last_str str)))
)
str)
(defun gud-edb-print-filter (str)
(setq last_str "")
(cond
((string-match "\n" str)
(edb-trace "----A <%s>" str)
(setq str (gud-edb-print-filter-switch str))
(edb-trace "----B <%s>" str)
)
(t (setq last_str str) (setq str "")))
str)
(defun gud-edb-print-filter-switch (str)
(edb-trace "%s %s %s <<<|%s|" edb-query-state edb-print-var edb-print-var-seq str)
(let ((proc (get-buffer-process gud-comint-buffer))
(new-query
(cond
((eq 'INIT edb-query-state)
(gud-edb-print-filter-INIT str))
((eq 'LOCAL edb-query-state)
(gud-edb-print-filter-LOCAL str))
((eq 'ATTR edb-query-state)
(gud-edb-print-filter-ATTR str))
((eq 'CTYPE edb-query-state)
(gud-edb-print-filter-CTYPE str))
((eq 'FCALL edb-query-state)
(gud-edb-print-filter-FCALL str))
((eq 'TYPE edb-query-state)
(gud-edb-print-filter-TYPE str))
((eq 'VALUE edb-query-state)
(gud-edb-print-filter-VALUE str))
(t nil))))
(edb-trace "%s |%s|<%s>" new-query str edb-target-var)
(cond (new-query
(edb-send proc (concat "p " new-query ))
""
)
((and edb-target-var (string-match "\\$[0-9]*\\( = {id = [0-9]+, .*\\)" str))
(concat edb-target-var (substring str (match-beginning 1))))
(t str))))
(defun gud-edb-print-filter-INIT (str)
(cond ((string-match "No symbol \"\\(.*\\)\" in current context\." str)
(setq edb-query-state 'LOCAL)
(concat "_" edb-print-var)
)
((string-match "There is no member named" str)
(setq edb-query-state 'TYPE)
(setq edb-target-var edb-print-var)
;(setq edb-print-var (car edb-print-var-seq))
;(setq edb-print-var-seq (cdr edb-print-var-seq))
(concat "*(T0*)" edb-target-var)
)
((string-match "\\(\\$[0-9]*\\) = \\((T[0-9]* \\*)\\) 0x[0-9a-f]*" str)
(setq edb-query-state 'TYPE)
(setq edb-target-var (matched-string str 1))
(setq edb-print-var "")
(setq edb-print-var-seq nil)
(concat "*" edb-target-var)
)
(t (setq edb-target-var nil)
(setq edb-query-state nil)
""
)))
(defun gud-edb-print-filter-LOCAL (str)
(cond ((string-match "No symbol \".*\" in current context\." str)
(setq edb-query-state 'ATTR)
(concat "C._" edb-print-var))
((string-match "\\(\\$[0-9]*\\) = \\((T[0-9]* \\*)\\) 0x[0-9a-f]*" str)
(setq edb-query-state 'TYPE)
(setq edb-target-var (matched-string str 1))
(concat "*(T0*)" edb-target-var)
)
(t (setq edb-query-state nil)
""
)
))
(defun gud-edb-print-filter-ATTR (str)
(cond
((string-match "There is no member named \\(.*\\)" str)
(setq edb-query-state 'CTYPE)
"*C"
)
((string-match "\\(\\$[0-9]*\\) = (T[0-9]* \\*) 0x[0-9a-f]*" str)
(setq edb-query-state 'TYPE)
(setq edb-target-var (matched-string str 1))
(concat "*(T0*)" edb-target-var)
)
(t (setq edb-query-state nil)
; ""
)
)
)
(defun gud-edb-print-filter-CTYPE (str)
(cond ((string-match "{id = \\([0-9]+\\)" str)
(setq edb-query-state 'FCALL)
(setq edb-target-cid (matched-string str 1))
(concat "rT" edb-target-cid edb-print-var "(" edb-target-var ")")
)
(t (setq edb-query-state nil)
; ""
)
))
(defun gud-edb-print-filter-FCALL (str)
(cond
((string-match "\\(\\$[0-9]*\\) = \\((T[0-9]* \\*)\\) 0x[0-9a-f]*" str)
(setq edb-query-state 'TYPE)
(setq edb-target-var (matched-string str 1))
(concat "*(T0*)" edb-target-var)
)
(t (setq edb-query-state nil)
; ""
)
)
)
(defun gud-edb-print-filter-TYPE (str)
(cond ((string-match "{id = \\([0-9]+\\)}" str)
(setq edb-target-cid (matched-string str 1))
(cond (edb-print-var-seq
(setq edb-query-state 'VALUE)
(setq edb-print-var (car edb-print-var-seq))
(setq edb-print-var-seq (cdr edb-print-var-seq))
(concat "((T" edb-target-cid "*)" edb-target-var ")._" edb-print-var)
)
(t
(setq edb-query-state 'VALUE)
(concat "*(T" edb-target-cid "*)" edb-target-var)
)))
(t (setq edb-query-state nil)
""
)
))
(defun gud-edb-print-filter-VALUE (str)
(cond
((string-match "There is no member named \\(.*\\)" str)
(setq edb-query-state 'FCALL)
(concat "rT" edb-target-cid edb-print-var "(" edb-target-var ")")
)
((string-match "\\(\\$[0-9]*\\) = \\((T[0-9]* \\*)\\) 0x[0-9a-f]*" str)
(setq edb-query-state 'TYPE)
(setq edb-target-var (matched-string str 1))
(concat "*(T0*)" edb-target-var)
)
(t (setq edb-query-state nil)
""
)
)
)
(provide 'edb)
|
