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revision 1.32 by heller, Wed Dec 3 22:34:50 2003 UTC revision 1.75 by heller, Wed Mar 3 20:55:38 2004 UTC
# Line 1  Line 1 
1  ;;;; -*- indent-tabs-mode: nil; outline-regexp: ";;;;+" -*-  ;;;; -*- indent-tabs-mode: nil; outline-regexp: ";;;;+" -*-
2    
3  (declaim (optimize debug))  (declaim (optimize (debug 2)))
4    
5  (in-package :swank)  (in-package :swank)
6    
7  ;; Turn on xref. [should we?]  (in-package :lisp)
 (setf c:*record-xref-info* t)  
8    
9  (defun without-interrupts* (body)  ;; Fix for read-sequence in 18e
10    (sys:without-interrupts (funcall body)))  #+cmu18e
11    (progn
12      (let ((s (find-symbol (string :*enable-package-locked-errors*) :lisp)))
13        (when s
14          (setf (symbol-value s) nil)))
15    
16      (defun read-into-simple-string (s stream start end)
17        (declare (type simple-string s))
18        (declare (type stream stream))
19        (declare (type index start end))
20        (unless (subtypep (stream-element-type stream) 'character)
21          (error 'type-error
22                 :datum (read-char stream nil #\Null)
23                 :expected-type (stream-element-type stream)
24                 :format-control "Trying to read characters from a binary stream."))
25        ;; Let's go as low level as it seems reasonable.
26        (let* ((numbytes (- end start))
27               (bytes-read (system:read-n-bytes stream s start numbytes t)))
28          (if (< bytes-read numbytes)
29              (+ start bytes-read)
30              end)))
31    
32      (let ((s (find-symbol (string :*enable-package-locked-errors*) :lisp)))
33        (when s
34          (setf (symbol-value s) t)))
35    
36      )
37    
38    (in-package :swank)
39    
40    
41    ;;;; TCP server.
42    
43    (setq *swank-in-background* :sigio)
44    
45    (defimplementation create-socket (host port)
46      (ext:create-inet-listener port :stream
47                                :reuse-address t
48                                :host (resolve-hostname host)))
49    
50    (defimplementation local-port (socket)
51      (nth-value 1 (ext::get-socket-host-and-port (socket-fd socket))))
52    
53    (defimplementation close-socket (socket)
54      (ext:close-socket (socket-fd socket)))
55    
56    (defimplementation accept-connection (socket)
57      #+MP (mp:process-wait-until-fd-usable socket :input)
58      (make-socket-io-stream (ext:accept-tcp-connection socket)))
59    
60    (defvar *sigio-handlers* '()
61      "List of (key . (fn . args)) pairs to be called on SIGIO.")
62    
63    (defun sigio-handler (signal code scp)
64      (declare (ignore signal code scp))
65      (mapc (lambda (handler) (funcall (cdr handler))) *sigio-handlers*))
66    
67    (defun set-sigio-handler ()
68      (sys:enable-interrupt unix:SIGIO (lambda (signal code scp)
69                                         (sigio-handler signal code scp))))
70    
71    (defun fcntl (fd command arg)
72      (multiple-value-bind (ok error) (unix:unix-fcntl fd command arg)
73        (cond (ok)
74              (t (error "fcntl: ~A" (unix:get-unix-error-msg error))))))
75    
76    (defimplementation add-sigio-handler (socket fn)
77      (set-sigio-handler)
78      (let ((fd (socket-fd socket)))
79        (format *debug-io* "; Adding input handler: ~S ~%" fd)
80        (fcntl fd unix:f-setown (unix:unix-getpid))
81        (fcntl fd unix:f-setfl unix:FASYNC)
82        (push (cons fd fn) *sigio-handlers*)))
83    
84    (defimplementation remove-sigio-handlers (socket)
85      (let ((fd (socket-fd socket)))
86        (setf *sigio-handlers* (delete fd *sigio-handlers* :key #'car))
87        (sys:invalidate-descriptor fd))
88      (close socket))
89    
90    (defimplementation add-fd-handler (socket fn)
91      (let ((fd (socket-fd socket)))
92        (format *debug-io* "; Adding fd handler: ~S ~%" fd)
93        (sys:add-fd-handler fd :input (lambda (_)
94                                        _
95                                        (funcall fn)))))
96    
97    (defimplementation remove-fd-handlers (socket)
98      (sys:invalidate-descriptor (socket-fd socket)))
99    
100    (defimplementation make-fn-streams (input-fn output-fn)
101      (let* ((output (make-slime-output-stream output-fn))
102             (input  (make-slime-input-stream input-fn output)))
103        (values input output)))
104    
105    ;;;;; Socket helpers.
106    
107    (defun socket-fd (socket)
108      "Return the filedescriptor for the socket represented by SOCKET."
109      (etypecase socket
110        (fixnum socket)
111        (sys:fd-stream (sys:fd-stream-fd socket))))
112    
113    (defun resolve-hostname (hostname)
114      "Return the IP address of HOSTNAME as an integer."
115      (let* ((hostent (ext:lookup-host-entry hostname))
116             (address (car (ext:host-entry-addr-list hostent))))
117        (ext:htonl address)))
118    
119    (defun make-socket-io-stream (fd)
120      "Create a new input/output fd-stream for FD."
121      (sys:make-fd-stream fd :input t :output t :element-type 'base-char))
122    
123  (defun set-fd-non-blocking (fd)  (defun set-fd-non-blocking (fd)
124    (flet ((fcntl (fd cmd arg)    (flet ((fcntl (fd cmd arg)
125             (multiple-value-bind (flags errno) (unix:unix-fcntl fd cmd arg)             (multiple-value-bind (flags errno) (unix:unix-fcntl fd cmd arg)
126               (or flags               (or flags
127                   (error "fcntl: ~A" (unix:get-unix-error-msg errno))))))                   (error "fcntl: ~A" (unix:get-unix-error-msg errno))))))
128      (let ((flags (fcntl fd unix:F-GETFL 0)))      (let ((flags (fcntl fd unix:F-GETFL 0)))
129        (fcntl fd unix:F-SETFL (logior flags unix:O_NONBLOCK)))))        (fcntl fd unix:F-SETFL (logior flags unix:O_NONBLOCK)))))
130    
131    
132  ;;;; TCP server.  ;;;; Unix signals
133    
134  (defun resolve-hostname (name)  (defmethod call-without-interrupts (fn)
135    (let* ((hostent (ext:lookup-host-entry name))    (sys:without-interrupts (funcall fn)))
136           (address (car (ext:host-entry-addr-list hostent))))  
137      (ext:htonl address)))  (defimplementation getpid ()
138      (unix:unix-getpid))
139    
140  (defun create-swank-server (port &key (reuse-address t)  (defimplementation lisp-implementation-type-name ()
141                              (address "localhost"))    "cmucl")
   "Create a SWANK TCP server."  
   (let* ((ip (resolve-hostname address))  
          (fd (ext:create-inet-listener port :stream  
                                        :reuse-address reuse-address  
                                        :host ip)))  
     (system:add-fd-handler fd :input #'accept-connection)  
     (nth-value 1 (ext::get-socket-host-and-port fd))))  
   
 (defun accept-connection (socket)  
   "Accept one Swank TCP connection on SOCKET and then close it."  
   (setup-request-handler (ext:accept-tcp-connection socket))  
   (sys:invalidate-descriptor socket)  
   (unix:unix-close socket))  
   
 (defun open-stream-to-emacs ()  
   "Return an output-stream to Emacs' output buffer."  
   (let* ((ip (resolve-hostname "localhost"))  
          (listener (ext:create-inet-listener 0 :stream :host ip))  
          (port (nth-value 1 (ext::get-socket-host-and-port listener))))  
     (unwind-protect  
          (progn  
            (eval-in-emacs `(slime-open-stream-to-lisp ,port))  
            (let ((fd (ext:accept-tcp-connection listener)))  
              (sys:make-fd-stream fd :output t)))  
       (ext:close-socket listener))))  
   
 (defvar *use-dedicated-output-stream* t)  
   
 (defun setup-request-handler (socket)  
   "Setup request handling for SOCKET."  
   (let* ((stream (sys:make-fd-stream socket  
                                      :input t :output t  
                                      :element-type 'base-char))  
          (input (make-slime-input-stream))  
          (output (if *use-dedicated-output-stream*  
                      (let ((*emacs-io* stream)) (open-stream-to-emacs))  
                      (make-slime-output-stream)))  
          (io (make-two-way-stream input output)))  
     (system:add-fd-handler socket  
                            :input (lambda (fd)  
                                     (declare (ignore fd))  
                                     (serve-request stream output input io)))))  
   
 (defun serve-request (*emacs-io* *slime-output* *slime-input* *slime-io*)  
   "Read and process a request from a SWANK client.  
 The request is read from the socket as a sexp and then evaluated."  
   (catch 'slime-toplevel  
     (with-simple-restart (abort "Return to Slime toplevel.")  
       (handler-case (read-from-emacs)  
         (slime-read-error (e)  
           (when *swank-debug-p*  
             (format *debug-io* "~&;; Connection to Emacs lost.~%;; [~A]~%" e))  
           (sys:invalidate-descriptor (sys:fd-stream-fd *emacs-io*))  
           (close *emacs-io*)))))  
   (sys:scrub-control-stack))  
142    
143    
144  ;;;; Stream handling  ;;;; Stream handling
145    
146  (defstruct (slime-output-stream  (defstruct (slime-output-stream
147               (:include lisp::lisp-stream               (:include lisp::lisp-stream
148                         (lisp::misc #'sos/misc)                         (lisp::misc #'sos/misc)
149                         (lisp::out #'sos/out)                         (lisp::out #'sos/out)
150                         (lisp::sout #'sos/sout))                         (lisp::sout #'sos/sout))
151               (:conc-name sos.)               (:conc-name sos.)
152               (:print-function %print-slime-output-stream))               (:print-function %print-slime-output-stream)
153                 (:constructor make-slime-output-stream (output-fn)))
154      (output-fn nil :type function)
155    (buffer (make-string 512) :type string)    (buffer (make-string 512) :type string)
156    (index 0 :type kernel:index)    (index 0 :type kernel:index)
157    (column 0 :type kernel:index))    (column 0 :type kernel:index))
# Line 117  The request is read from the socket as a Line 175  The request is read from the socket as a
175  (defun sos/sout (stream string start end)  (defun sos/sout (stream string start end)
176    (loop for i from start below end    (loop for i from start below end
177          do (sos/out stream (aref string i))))          do (sos/out stream (aref string i))))
178    
179  (defun sos/misc (stream operation &optional arg1 arg2)  (defun sos/misc (stream operation &optional arg1 arg2)
180    (declare (ignore arg1 arg2))    (declare (ignore arg1 arg2))
181    (case operation    (case operation
182      ((:force-output :finish-output)      ((:force-output :finish-output)
183       (let ((end (sos.index stream)))       (let ((end (sos.index stream)))
184         (unless (zerop end)         (unless (zerop end)
185           (send-to-emacs `(:read-output ,(subseq (sos.buffer stream) 0 end)))           (funcall (sos.output-fn stream) (subseq (sos.buffer stream) 0 end))
186           (setf (sos.index stream) 0))))           (setf (sos.index stream) 0))))
187      (:charpos (sos.column stream))      (:charpos (sos.column stream))
188      (:line-length 75)      (:line-length 75)
189      (:file-position nil)      (:file-position nil)
# Line 135  The request is read from the socket as a Line 193  The request is read from the socket as a
193      (t (format *terminal-io* "~&~Astream: ~S~%" stream operation))))      (t (format *terminal-io* "~&~Astream: ~S~%" stream operation))))
194    
195  (defstruct (slime-input-stream  (defstruct (slime-input-stream
196               (:include string-stream               (:include string-stream
197                         (lisp::in #'sis/in)                         (lisp::in #'sis/in)
198                         (lisp::misc #'sis/misc))                         (lisp::misc #'sis/misc))
199               (:conc-name sis.)               (:conc-name sis.)
200               (:print-function %print-slime-output-stream))               (:print-function %print-slime-output-stream)
201    (buffer "" :type string)               (:constructor make-slime-input-stream (input-fn sos)))
202    (index 0 :type kernel:index))    (input-fn nil :type function)
203      ;; We know our sibling output stream, so that we can force it before
204      ;; requesting input.
205      (sos      nil :type slime-output-stream)
206      (buffer   ""  :type string)
207      (index    0   :type kernel:index))
208    
209  (defun sis/in (stream eof-errorp eof-value)  (defun sis/in (stream eof-errorp eof-value)
210    (declare (ignore eof-errorp eof-value))    (declare (ignore eof-errorp eof-value))
211    (let ((index (sis.index stream))    (let ((index (sis.index stream))
212          (buffer (sis.buffer stream)))          (buffer (sis.buffer stream)))
213      (when (= index (length buffer))      (when (= index (length buffer))
214        (setf buffer (slime-read-string))        (force-output (sis.sos stream))
215          (setf buffer (funcall (sis.input-fn stream)))
216        (setf (sis.buffer stream) buffer)        (setf (sis.buffer stream) buffer)
217        (setf index 0))        (setf index 0))
218      (prog1 (aref buffer index)      (prog1 (aref buffer index)
# Line 162  The request is read from the socket as a Line 226  The request is read from the socket as a
226      (:unread (setf (aref (sis.buffer stream)      (:unread (setf (aref (sis.buffer stream)
227                           (decf (sis.index stream)))                           (decf (sis.index stream)))
228                     arg1))                     arg1))
229      (:clear-input (setf (sis.index stream) 0      (:clear-input
230         (setf (sis.index stream) 0
231                          (sis.buffer stream) ""))                          (sis.buffer stream) ""))
232      (:listen (< (sis.index stream) (length (sis.buffer stream))))      (:listen (< (sis.index stream) (length (sis.buffer stream))))
233      (:charpos nil)      (:charpos nil)
# Line 201  C:*COMPILER-NOTIFICATION-FUNCTION*. The Line 266  C:*COMPILER-NOTIFICATION-FUNCTION*. The
266  craft our own error messages, which can omit a lot of redundant  craft our own error messages, which can omit a lot of redundant
267  information."  information."
268    (unless (eq condition *previous-compiler-condition*)    (unless (eq condition *previous-compiler-condition*)
269      (let ((context (or (c::find-error-context nil) *previous-context*)))      (let ((context (c::find-error-context nil)))
270        (setq *previous-compiler-condition* condition)        (setq *previous-compiler-condition* condition)
271        (setq *previous-context* context)        (setq *previous-context* context)
272        (signal-compiler-condition condition context))))        (signal-compiler-condition condition context))))
# Line 211  information." Line 276  information."
276             'compiler-condition             'compiler-condition
277             :original-condition condition             :original-condition condition
278             :severity (severity-for-emacs condition)             :severity (severity-for-emacs condition)
279             :message (brief-compiler-message-for-emacs condition context)             :short-message (brief-compiler-message-for-emacs condition)
280               :message (long-compiler-message-for-emacs condition context)
281             :location (compiler-note-location context))))             :location (compiler-note-location context))))
282    
283  (defun severity-for-emacs (condition)  (defun severity-for-emacs (condition)
# Line 221  information." Line 287  information."
287      (c::style-warning :note)      (c::style-warning :note)
288      (c::warning :warning)))      (c::warning :warning)))
289    
290  (defun brief-compiler-message-for-emacs (condition error-context)  (defun brief-compiler-message-for-emacs (condition)
291    "Briefly describe a compiler error for Emacs.    "Briefly describe a compiler error for Emacs.
292  When Emacs presents the message it already has the source popped up  When Emacs presents the message it already has the source popped up
293  and the source form highlighted. This makes much of the information in  and the source form highlighted. This makes much of the information in
294  the error-context redundant."  the error-context redundant."
295      (princ-to-string condition))
296    
297    (defun long-compiler-message-for-emacs (condition error-context)
298      "Describe a compiler error for Emacs including context information."
299    (declare (type (or c::compiler-error-context null) error-context))    (declare (type (or c::compiler-error-context null) error-context))
300    (multiple-value-bind (enclosing source)    (multiple-value-bind (enclosing source)
301        (if error-context        (if error-context
# Line 234  the error-context redundant." Line 304  the error-context redundant."
304      (format nil "~@[--> ~{~<~%--> ~1:;~A~> ~}~%~]~@[~{==>~%~A~^~%~}~]~A"      (format nil "~@[--> ~{~<~%--> ~1:;~A~> ~}~%~]~@[~{==>~%~A~^~%~}~]~A"
305              enclosing source condition)))              enclosing source condition)))
306    
   
307  (defun compiler-note-location (context)  (defun compiler-note-location (context)
308    (cond (context    (cond (context
309           (resolve-note-location           (resolve-note-location
# Line 270  the error-context redundant." Line 339  the error-context redundant."
339                                    (pos (eql nil))                                    (pos (eql nil))
340                                    (path (eql nil))                                    (path (eql nil))
341                                    (source (eql nil)))                                    (source (eql nil)))
342      (list :error "No error location available")
343      #+(or)
344    (cond (buffer    (cond (buffer
345           (make-location (list :buffer buffer)           (make-location (list :buffer buffer)
346                          (list :position *buffer-start-position*)))                          (list :position *buffer-start-position*)))
347          (*compile-file-truename*          (*compile-file-truename*
348           (make-location (list :file (namestring *compile-file-truename*))           (make-location (list :file (namestring *compile-file-truename*))
349                          (list :position 0)))                          (list :source-path '(0) 1)))
350          (*compile-filename*          (*compile-filename*
351           (make-location (list :file *compile-filename*) (list :position 0)))           (make-location (list :file *compile-filename*)
352                            (list :source-path '(0) 1)))
353          (t          (t
354           (list :error "No error location available"))))           (list :error "No error location available"))))
355    
356  (defmacro with-compilation-hooks (() &body body)  (defimplementation call-with-compilation-hooks (function)
357    "Execute BODY and record the set of compiler notes."    (let ((*previous-compiler-condition* nil)
358    `(let ((*previous-compiler-condition* nil)          (*previous-context* nil)
359           (*previous-context* nil)          (*print-readably* nil))
          (*print-readably* nil))  
360      (handler-bind ((c::compiler-error #'handle-notification-condition)      (handler-bind ((c::compiler-error #'handle-notification-condition)
361                     (c::style-warning  #'handle-notification-condition)                     (c::style-warning  #'handle-notification-condition)
362                     (c::warning        #'handle-notification-condition))                     (c::warning        #'handle-notification-condition))
363        ,@body)))        (funcall function))))
364    
365  (defmethod compile-file-for-emacs (filename load-p)  (defimplementation compile-file-for-emacs (filename load-p)
366    (clear-xref-info filename)    (clear-xref-info filename)
367    (with-compilation-hooks ()    (with-compilation-hooks ()
368      (let ((*buffer-name* nil)      (let ((*buffer-name* nil)
369            (*compile-filename* filename))            (*compile-filename* filename))
370          (compile-file filename :load load-p))))        (compile-file filename :load load-p))))
371    
372  (defmethod compile-string-for-emacs (string &key buffer position)  (defimplementation compile-string-for-emacs (string &key buffer position)
373    (with-compilation-hooks ()    (with-compilation-hooks ()
374      (let ((*package* *buffer-package*)      (let ((*package* *buffer-package*)
375            (*compile-filename* nil)            (*compile-filename* nil)
# Line 318  the error-context redundant." Line 389  the error-context redundant."
389  (defun lookup-xrefs (finder name)  (defun lookup-xrefs (finder name)
390    (xref-results-for-emacs (funcall finder (from-string name))))    (xref-results-for-emacs (funcall finder (from-string name))))
391    
392  (defslimefun who-calls (function-name)  (defimplementation who-calls (function-name)
   "Return the places where FUNCTION-NAME is called."  
393    (lookup-xrefs #'xref:who-calls function-name))    (lookup-xrefs #'xref:who-calls function-name))
394    
395  (defslimefun who-references (variable)  (defimplementation who-references (variable)
   "Return the places where the global variable VARIABLE is referenced."  
396    (lookup-xrefs #'xref:who-references variable))    (lookup-xrefs #'xref:who-references variable))
397    
398  (defslimefun who-binds (variable)  (defimplementation who-binds (variable)
   "Return the places where the global variable VARIABLE is bound."  
399    (lookup-xrefs #'xref:who-binds variable))    (lookup-xrefs #'xref:who-binds variable))
400    
401  (defslimefun who-sets (variable)  (defimplementation who-sets (variable)
   "Return the places where the global variable VARIABLE is set."  
402    (lookup-xrefs #'xref:who-sets variable))    (lookup-xrefs #'xref:who-sets variable))
403    
404  #+cmu19  #+cmu19
405  (progn  (progn
406    (defslimefun who-macroexpands (macro)    (defimplementation who-macroexpands (macro)
     "Return the places where MACRO is expanded."  
407      (lookup-xrefs #'xref:who-macroexpands macro))      (lookup-xrefs #'xref:who-macroexpands macro))
408    
409    (defslimefun who-specializes (class)    (defimplementation who-specializes (class)
     "Return the methods with specializers for CLASS."  
410      (let* ((methods (xref::who-specializes (find-class (from-string class))))      (let* ((methods (xref::who-specializes (find-class (from-string class))))
411             (locations (mapcar #'method-source-location methods)))             (locations (mapcar #'method-source-location methods)))
412        (group-xrefs (mapcar (lambda (m l)        (group-xrefs (mapcar (lambda (m l)
413                               (cons (let ((*print-pretty* nil))                               (cons (let ((*print-pretty* nil))
414                                       (to-string m))                                       (to-string m))
415                                     l))                                     l))
416                             methods locations))))                             methods locations)))))
   )  
417    
418  (defun resolve-xref-location (xref)  (defun resolve-xref-location (xref)
419    (let ((name (xref:xref-context-name xref))    (let ((name (xref:xref-context-name xref))
# Line 380  reference   ::= (FUNCTION-SPECIFIER . SO Line 444  reference   ::= (FUNCTION-SPECIFIER . SO
444                xrefs)))                xrefs)))
445      (group-xrefs xrefs)))      (group-xrefs xrefs)))
446    
   
 (defun location-buffer= (location1 location2)  
   (equalp location1 location2))  
   
 (defun file-xrefs-for-emacs (unix-filename contexts)  
   "Return a summary of the references from a particular file.  
 The result is a list of the form (FILENAME ((REFERRER SOURCE-PATH) ...))"  
   (list unix-filename  
         (loop for context in (sort-contexts-by-source-path contexts)  
               collect (list (let ((*print-pretty* nil))  
                               (to-string (xref:xref-context-name context)))  
                             (xref:xref-context-source-path context)))))  
   
 (defun sort-contexts-by-source-path (contexts)  
   "Sort xref contexts by lexical position of source-paths.  
 It is assumed that all contexts belong to the same file."  
   (sort contexts #'source-path< :key #'xref:xref-context-source-path))  
   
 (defun source-path< (path1 path2)  
   "Return true if PATH1 is lexically before PATH2."  
   (and (every #'< path1 path2)  
        (< (length path1) (length path2))))  
   
447  (defun clear-xref-info (namestring)  (defun clear-xref-info (namestring)
448    "Clear XREF notes pertaining to FILENAME.    "Clear XREF notes pertaining to NAMESTRING.
449  This is a workaround for a CMUCL bug: XREF records are cumulative."  This is a workaround for a CMUCL bug: XREF records are cumulative."
450    (let ((filename (parse-namestring namestring)))    (when c:*record-xref-info*
451      (when c:*record-xref-info*      (let ((filename (truename namestring)))
452        (dolist (db (list xref::*who-calls*        (dolist (db (list xref::*who-calls*
453                          #+cmu19 xref::*who-is-called*                          #+cmu19 xref::*who-is-called*
454                          #+cmu19 xref::*who-macroexpands*                          #+cmu19 xref::*who-macroexpands*
# Line 415  This is a workaround for a CMUCL bug: XR Line 456  This is a workaround for a CMUCL bug: XR
456                          xref::*who-binds*                          xref::*who-binds*
457                          xref::*who-sets*))                          xref::*who-sets*))
458          (maphash (lambda (target contexts)          (maphash (lambda (target contexts)
459                       ;; XXX update during traversal?
460                     (setf (gethash target db)                     (setf (gethash target db)
461                           (delete-if                           (delete filename contexts
462                            (lambda (ctx)                                   :key #'xref:xref-context-file
463                              (xref-context-derived-from-p ctx filename))                                   :test #'equalp)))
                           contexts)))  
464                   db)))))                   db)))))
465    
 (defun xref-context-derived-from-p (context filename)  
   (let ((xref-file (xref:xref-context-file context)))  
     (and xref-file (pathname= filename xref-file))))  
   
 (defun pathname= (&rest pathnames)  
   "True if PATHNAMES refer to the same file."  
   (apply #'string= (mapcar #'unix-truename pathnames)))  
   
466  (defun unix-truename (pathname)  (defun unix-truename (pathname)
467    (ext:unix-namestring (truename pathname)))    (ext:unix-namestring (truename pathname)))
468    
# Line 529  the code omponent CODE." Line 562  the code omponent CODE."
562                         (function-source-location e)))                         (function-source-location e)))
563     :test #'equal))     :test #'equal))
564    
565  (defslimefun list-callers (symbol-name)  (defimplementation list-callers (symbol-name)
566    "Return a list ((FILE . ((NAME . LOCATION) ...)) ...) of callers."    "Return a list ((FILE . ((NAME . LOCATION) ...)) ...) of callers."
567    (let ((components (function-callers (from-string symbol-name)))    (let ((components (function-callers (from-string symbol-name)))
568          (xrefs '()))          (xrefs '()))
# Line 543  the code omponent CODE." Line 576  the code omponent CODE."
576          (setq xrefs (nconc defs xrefs))))          (setq xrefs (nconc defs xrefs))))
577      (group-xrefs xrefs)))      (group-xrefs xrefs)))
578    
579    (defimplementation list-callees (symbol-name)
 (defslimefun list-callees (symbol-name)  
580    (let ((fns (function-callees (from-string symbol-name))))    (let ((fns (function-callees (from-string symbol-name))))
581      (group-xrefs (mapcar (lambda (fn)      (group-xrefs (mapcar (lambda (fn)
582                             (cons (to-string (kernel:%function-name fn))                             (cons (to-string (kernel:%function-name fn))
583                                   (function-source-location fn)))                                   (function-source-location fn)))
584                           fns))))                           fns))))
585    
586    
587  ;;;; Definitions  ;;;; Definitions
588    
589  (defvar *debug-definition-finding* t  (defvar *debug-definition-finding* nil
590    "When true don't handle errors while looking for definitions.    "When true don't handle errors while looking for definitions.
591  This is useful when debugging the definition-finding code.")  This is useful when debugging the definition-finding code.")
592    
593  (defmacro safe-definition-finding (&body body)  (defmacro safe-definition-finding (&body body)
594    "Execute BODY ignoring errors.  Return a the source location    "Execute BODY ignoring errors.  Return the source location returned
595  returned by BODY or if an error occurs a description of the error.  by BODY or if an error occurs a description of the error.  The second
596  The second return value is the condition or nil."  return value is the condition or nil."
597    `(flet ((body () ,@body))    `(flet ((body () ,@body))
598      (if *debug-definition-finding*      (if *debug-definition-finding*
599          (body)          (body)
# Line 629  The second return value is the condition Line 662  The second return value is the condition
662             (etypecase pathname             (etypecase pathname
663               (pathname               (pathname
664                (make-location `(:file ,(guess-source-file pathname))                (make-location `(:file ,(guess-source-file pathname))
665                               `(:function-name ,(string name)))))))))))                               `(:function-name ,(string name))))
666                 (null `(:error ,(format nil "Cannot resolve: ~S" def-source)))
667                 )))))))
668    
669  (defun method-source-location (method)  (defun method-source-location (method)
670    (function-source-location (or (pcl::method-fast-function method)    (function-source-location (or (pcl::method-fast-function method)
# Line 670  The second return value is the condition Line 705  The second return value is the condition
705    (destructuring-bind (first) (function-source-locations function)    (destructuring-bind (first) (function-source-locations function)
706      first))      first))
707    
708  (defslimefun find-function-locations (symbol-name)  (defimplementation find-function-locations (symbol-name)
709    "Return a list of source-locations for SYMBOL-NAME's functions."    "Return a list of source-locations for SYMBOL-NAME's functions."
710    (multiple-value-bind (symbol foundp) (find-symbol-designator symbol-name)    (multiple-value-bind (symbol foundp) (find-symbol-designator symbol-name)
711      (cond ((not foundp)      (cond ((not foundp)
# Line 688  The second return value is the condition Line 723  The second return value is the condition
723    
724  ;;;; Documentation.  ;;;; Documentation.
725    
726  (defmethod describe-symbol-for-emacs (symbol)  (defimplementation describe-symbol-for-emacs (symbol)
727    (let ((result '()))    (let ((result '()))
728      (flet ((doc (kind)      (flet ((doc (kind)
729               (or (documentation symbol kind) :not-documented))               (or (documentation symbol kind) :not-documented))
# Line 734  The second return value is the condition Line 769  The second return value is the condition
769                         (doc nil)))                         (doc nil)))
770        result)))        result)))
771    
 (defslimefun describe-setf-function (symbol-name)  
   (print-description-to-string  
    (or (ext:info setf inverse (from-string symbol-name))  
        (ext:info setf expander (from-string symbol-name)))))  
   
 (defslimefun describe-type (symbol-name)  
   (print-description-to-string  
    (kernel:values-specifier-type (from-string symbol-name))))  
   
 (defslimefun describe-class (symbol-name)  
   (print-description-to-string (find-class (from-string symbol-name) nil)))  
   
 (defslimefun describe-alien-type (symbol-name)  
   (let ((name (from-string symbol-name)))  
     (ecase (ext:info :alien-type :kind name)  
       (:primitive  
        (print-description-to-string  
         (let ((alien::*values-type-okay* t))  
           (funcall (ext:info :alien-type :translator name) (list name)))))  
       ((:defined)  
        (print-description-to-string (ext:info :alien-type :definition name)))  
       (:unknown  
        (format nil "Unkown alien type: ~A" symbol-name)))))  
   
772  (defmacro %describe-alien (symbol-name namespace)  (defmacro %describe-alien (symbol-name namespace)
773    `(print-description-to-string    `(print-description-to-string
774      (ext:info :alien-type ,namespace (from-string ,symbol-name))))      (ext:info :alien-type ,namespace (from-string ,symbol-name))))
775    
776  (defslimefun describe-alien-struct (symbol-name)  (defimplementation describe-definition (symbol-name type)
777    (%describe-alien symbol-name :struct))    (case type
778        (:variable
779         (describe-symbol symbol-name))
780        ((:function :generic-function)
781         (describe-function symbol-name))
782        (:setf
783         (print-description-to-string
784          (or (ext:info setf inverse (from-string symbol-name))
785              (ext:info setf expander (from-string symbol-name)))))
786        (:type
787         (print-description-to-string
788          (kernel:values-specifier-type (from-string symbol-name))))
789        (:class
790         (print-description-to-string (find-class (from-string symbol-name) nil)))
791        (:alien-type
792         (let ((name (from-string symbol-name)))
793           (ecase (ext:info :alien-type :kind name)
794             (:primitive
795              (print-description-to-string
796               (let ((alien::*values-type-okay* t))
797                 (funcall (ext:info :alien-type :translator name) (list name)))))
798             ((:defined)
799              (print-description-to-string (ext:info :alien-type
800                                                     :definition name)))
801             (:unknown
802              (format nil "Unkown alien type: ~A" symbol-name)))))
803        (:alien-struct
804         (%describe-alien symbol-name :struct))
805        (:alien-union
806         (%describe-alien symbol-name :union))
807        (:alien-enum
808         (%describe-alien symbol-name :enum))))
809    
810  (defslimefun describe-alien-union (symbol-name)  (defimplementation arglist-string (fname)
   (%describe-alien symbol-name :union))  
   
 (defslimefun describe-alien-enum (symbol-name)  
   (%describe-alien symbol-name :enum))  
   
 (defmethod arglist-string (fname)  
811    "Return a string describing the argument list for FNAME.    "Return a string describing the argument list for FNAME.
812  The result has the format \"(...)\"."  The result has the format \"(...)\"."
813    (declare (type string fname))    (declare (type string fname))
814    (multiple-value-bind (function condition)    (multiple-value-bind (function package) (find-symbol-designator fname)
815        (ignore-errors (values (find-symbol-designator fname *buffer-package*)))      (unless package
816      (when condition        (return-from arglist-string (format nil "(-- Unkown symbol: ~A)" fname)))
       (return-from arglist-string (format nil "(-- ~A)" condition)))  
817      (let ((arglist      (let ((arglist
818             (if (not (or (fboundp function)             (if (not (or (fboundp function)
819                          (functionp function)))                          (functionp function)))
820                 "(-- <Unknown-Function>)"                 "(-- <Unknown-Function>)"
821                 (let* ((fun (or (macro-function function)                 (let* ((fun (or (macro-function function)
822                                 (symbol-function function)))                                 (symbol-function function)))
823                        (df (di::function-debug-function fun))                        (arglist (kernel:%function-arglist
824                        (arglist (kernel:%function-arglist fun)))                                  (kernel:%function-self fun))))
825                   (cond ((eval:interpreted-function-p fun)                   (cond ((eval:interpreted-function-p fun)
826                          (eval:interpreted-function-arglist fun))                          (eval:interpreted-function-arglist fun))
827                         ((pcl::generic-function-p fun)                         ((pcl::generic-function-p fun)
828                          (pcl::gf-pretty-arglist fun))                          (pcl:generic-function-lambda-list fun))
829                         (arglist arglist)                         (arglist arglist)
830                         ;; this should work both for                         ;; this should work both for
831                         ;; compiled-debug-function and for                         ;; compiled-debug-function and for
832                         ;; interpreted-debug-function                         ;; interpreted-debug-function
833                         (df (di::debug-function-lambda-list df))                         (t (let ((df (di::function-debug-function fun)))
834                         (t "(<arglist-unavailable>)"))))))                              (if df
835        (if (stringp arglist)                                  (di::debug-function-lambda-list df)
836            arglist                                  "(<arglist-unavailable>)"))))))))
837            (to-string arglist)))))        (etypecase arglist
838            (string arglist)
839            (cons (let ((*print-case* :downcase)
840                        (*print-pretty* nil))
841                    (princ-to-string arglist)))
842            (null "()")))))
843    
844    
845  ;;;; Miscellaneous.  ;;;; Miscellaneous.
846    
847  (defmethod macroexpand-all (form)  (defimplementation macroexpand-all (form)
848    (walker:macroexpand-all form))    (walker:macroexpand-all form))
849    
850  (defun tracedp (fname)  (in-package :c)
851    (gethash (debug::trace-fdefinition fname)  
852             debug::*traced-functions*))  (defun swank::expand-ir1-top-level (form)
853      "A scaled down version of the first pass of the compiler."
854  (defslimefun toggle-trace-fdefinition (fname-string)    (with-compilation-unit ()
855    (let ((fname (from-string fname-string)))      (let* ((*lexical-environment*
856      (cond ((tracedp fname)              (make-lexenv :default (make-null-environment)
857             (debug::untrace-1 fname)                           :cookie *default-cookie*
858             (format nil "~S is now untraced." fname))                           :interface-cookie *default-interface-cookie*))
859            (t             (*source-info* (make-lisp-source-info form))
860             (debug::trace-1 fname (debug::make-trace-info))             (*block-compile* nil)
861             (format nil "~S is now traced." fname)))))             (*block-compile-default* nil))
862          (with-ir1-namespace
863              (clear-stuff)
864            (find-source-paths form 0)
865            (ir1-top-level form '(0) t)))))
866    
867    (in-package :swank)
868    
869    (defslimefun print-ir1-converted-blocks (form)
870      (with-output-to-string (*standard-output*)
871        (c::print-all-blocks (expand-ir1-top-level (from-string form)))))
872    
873    (defslimefun print-compilation-trace (form)
874      (with-output-to-string (*standard-output*)
875        (with-input-from-string (s form)
876          (let ((*package* *buffer-package*))
877            (ext:compile-from-stream s
878                                     :verbose t
879                                     :progress t
880                                     :trace-stream *standard-output*)))))
881    
882  (defslimefun set-default-directory (directory)  (defslimefun set-default-directory (directory)
883    (setf (ext:default-directory) (namestring directory))    (setf (ext:default-directory) (namestring directory))
# Line 827  The result has the format \"(...)\"." Line 886  The result has the format \"(...)\"."
886    (setf *default-pathname-defaults* (pathname (ext:default-directory)))    (setf *default-pathname-defaults* (pathname (ext:default-directory)))
887    (namestring (ext:default-directory)))    (namestring (ext:default-directory)))
888    
889    ;;; source-path-{stream,file,string,etc}-position moved into
890  ;;;; Source-paths  ;;; swank-source-path-parser
   
 ;;; CMUCL uses a data structure called "source-path" to locate  
 ;;; subforms.  The compiler assigns a source-path to each form in a  
 ;;; compilation unit.  Compiler notes usually contain the source-path  
 ;;; of the error location.  
 ;;;  
 ;;; Compiled code objects don't contain source paths, only the  
 ;;; "toplevel-form-number" and the (sub-) "form-number".  To get from  
 ;;; the form-number to the source-path we need the entire toplevel-form  
 ;;; (i.e. we have to read the source code).  CMUCL has already some  
 ;;; utilities to do this translation, but we use some extended  
 ;;; versions, because we need more exact position info.  Apparently  
 ;;; Hemlock is happy with the position of the toplevel-form; we also  
 ;;; need the position of subforms.  
 ;;;  
 ;;; We use a special readtable to get the positions of the subforms.  
 ;;; The readtable stores the start and end position for each subform in  
 ;;; hashtable for later retrieval.  
   
 (defun make-source-recorder (fn source-map)  
   "Return a macro character function that does the same as FN, but  
 additionally stores the result together with the stream positions  
 before and after of calling FN in the hashtable SOURCE-MAP."  
   (lambda (stream char)  
     (let ((start (file-position stream))  
           (values (multiple-value-list (funcall fn stream char)))  
           (end (file-position stream)))  
       #+(or) (format t "~&[~D ~{~A~^, ~} ~D]~%" start values end)  
       (unless (null values)  
         (push (cons start end) (gethash (car values) source-map)))  
       (values-list values))))  
   
 (defun make-source-recording-readtable (readtable source-map)  
   "Return a source position recording copy of READTABLE.  
 The source locations are stored in SOURCE-MAP."  
   (let* ((tab (copy-readtable readtable))  
          (*readtable* tab))  
     (dotimes (code char-code-limit)  
       (let ((char (code-char code)))  
         (multiple-value-bind (fn term) (get-macro-character char tab)  
           (when fn  
             (set-macro-character char (make-source-recorder fn source-map)  
                                  term tab)))))  
     tab))  
   
 (defun make-source-map ()  
   (make-hash-table :test #'eq))  
   
 (defvar *source-map* (make-source-map)  
   "The hashtable table used for source position recording.")  
   
 (defvar *recording-readtable-cache* '()  
   "An alist of (READTABLE . RECORDING-READTABLE) pairs.")  
   
 (defun lookup-recording-readtable (readtable)  
   "Find a cached or create a new recording readtable for READTABLE."  
   (or (cdr (assoc readtable *recording-readtable-cache*))  
       (let ((table (make-source-recording-readtable readtable *source-map*)))  
         (push (cons readtable table) *recording-readtable-cache*)  
         table)))  
   
 (defun read-and-record-source-map (stream)  
   "Read the next object from STREAM.  
 Return the object together with a hashtable that maps  
 subexpressions of the object to stream positions."  
   (let ((*readtable* (lookup-recording-readtable *readtable*)))  
     (clrhash *source-map*)  
     (values (read stream) *source-map*)))  
   
 (defun source-path-stream-position (path stream)  
   "Search the source-path PATH in STREAM and return its position."  
   (destructuring-bind (tlf-number . path) path  
     (let ((*read-suppress* t))  
       (dotimes (i tlf-number) (read stream))  
       (multiple-value-bind (form source-map)  
           (read-and-record-source-map stream)  
         (source-path-source-position (cons 0 path) form source-map)))))  
   
 (defun source-path-string-position (path string)  
   (with-input-from-string (s string)  
     (source-path-stream-position path s)))  
   
 (defun source-path-file-position (path filename)  
   (with-open-file (file filename)  
     (source-path-stream-position path file)))  
   
 (defun source-path-source-position (path form source-map)  
   "Return the start position of PATH form FORM and SOURCE-MAP.  All  
 subforms along the path are considered and the start and end position  
 of deepest (i.e. smallest) possible form is returned."  
   ;; compute all subforms along path  
   (let ((forms (loop for n in path  
                      for f = form then (nth n f)  
                      collect f)))  
     ;; select the first subform present in source-map  
     (loop for form in (reverse forms)  
           for positions = (gethash form source-map)  
           until (and positions (null (cdr positions)))  
           finally (destructuring-bind ((start . end)) positions  
                     (return (values (1- start) end))))))  
891    
892  (defun code-location-stream-position (code-location stream)  (defun code-location-stream-position (code-location stream)
893    "Return the byte offset of CODE-LOCATION in STREAM.  Extract the    "Return the byte offset of CODE-LOCATION in STREAM.  Extract the
# Line 995  to find the position of the correspondin Line 954  to find the position of the correspondin
954    (safe-definition-finding    (safe-definition-finding
955     (source-location-from-code-location code-location)))     (source-location-from-code-location code-location)))
956    
 (defslimefun getpid ()  
   (unix:unix-getpid))  
   
957    
958  ;;;; Debugging  ;;;; Debugging
959    
960  (defvar *sldb-stack-top*)  (defvar *sldb-stack-top*)
961  (defvar *sldb-restarts*)  (defvar *sldb-restarts*)
962    
963  (defmethod call-with-debugging-environment (debugger-loop-fn)  (defimplementation call-with-debugging-environment (debugger-loop-fn)
964    (unix:unix-sigsetmask 0)    (unix:unix-sigsetmask 0)
965    (let* ((*sldb-stack-top* (or debug:*stack-top-hint* (di:top-frame)))    (let* ((*sldb-stack-top* (or debug:*stack-top-hint* (di:top-frame)))
966           (*sldb-restarts* (compute-restarts *swank-debugger-condition*))           (*sldb-restarts* (compute-restarts *swank-debugger-condition*))
967           (debug:*stack-top-hint* nil)           (debug:*stack-top-hint* nil))
          (*debugger-hook* nil)  
          (*readtable* (or debug:*debug-readtable* *readtable*))  
          (*print-level* debug:*debug-print-level*)  
          (*print-length* debug:*debug-print-length*)  
          (*print-readably* nil))  
968      (handler-bind ((di:debug-condition      (handler-bind ((di:debug-condition
969                      (lambda (condition)                      (lambda (condition)
970                        (signal (make-condition                        (signal (make-condition
# Line 1028  format suitable for Emacs." Line 979  format suitable for Emacs."
979          collect (list (princ-to-string (restart-name restart))          collect (list (princ-to-string (restart-name restart))
980                        (princ-to-string restart))))                        (princ-to-string restart))))
981    
 (defun format-condition-for-emacs ()  
   (format nil "~A~%   [Condition of type ~S]"  
           (debug::safe-condition-message *swank-debugger-condition*)  
           (type-of *swank-debugger-condition*)))  
   
982  (defun nth-frame (index)  (defun nth-frame (index)
983    (do ((frame *sldb-stack-top* (di:frame-down frame))    (do ((frame *sldb-stack-top* (di:frame-down frame))
984         (i index (1- i)))         (i index (1- i)))
# Line 1041  format suitable for Emacs." Line 987  format suitable for Emacs."
987  (defun nth-restart (index)  (defun nth-restart (index)
988    (nth index *sldb-restarts*))    (nth index *sldb-restarts*))
989    
990  (defun format-frame-for-emacs (frame)  (defun format-frame-for-emacs (number frame)
991    (list (di:frame-number frame)    (print-with-frame-label
992          (with-output-to-string (*standard-output*)     number (lambda (*standard-output*)
993            (let ((*print-pretty* *sldb-pprint-frames*))              (debug::print-frame-call frame :verbosity 1 :number nil))))
             (debug::print-frame-call frame :verbosity 1 :number t)))))  
994    
995  (defun compute-backtrace (start end)  (defun compute-backtrace (start end)
996    "Return a list of frames starting with frame number START and    "Return a list of frames starting with frame number START and
# Line 1055  stack." Line 1000  stack."
1000      (loop for f = (nth-frame start) then (di:frame-down f)      (loop for f = (nth-frame start) then (di:frame-down f)
1001            for i from start below end            for i from start below end
1002            while f            while f
1003            collect f)))            collect (cons i f))))
1004    
1005  (defmethod backtrace (start end)  (defimplementation backtrace (start end)
1006    (mapcar #'format-frame-for-emacs (compute-backtrace start end)))    (loop for (n . frame) in (compute-backtrace start end)
1007            collect (list n (format-frame-for-emacs n frame))))
1008    
1009  (defmethod debugger-info-for-emacs (start end)  (defimplementation debugger-info-for-emacs (start end)
1010    (list (format-condition-for-emacs)    (list (debugger-condition-for-emacs)
1011          (format-restarts-for-emacs)          (format-restarts-for-emacs)
1012          (backtrace start end)))          (backtrace start end)))
1013    
1014  (defmethod frame-source-location-for-emacs (index)  (defimplementation frame-source-location-for-emacs (index)
1015    (code-location-source-location (di:frame-code-location (nth-frame index))))    (code-location-source-location (di:frame-code-location (nth-frame index))))
1016    
1017  (defmethod eval-in-frame (form index)  (defimplementation eval-in-frame (form index)
1018    (di:eval-in-frame (nth-frame index) form))    (di:eval-in-frame (nth-frame index) form))
1019    
1020  (defslimefun pprint-eval-string-in-frame (string index)  (defslimefun pprint-eval-string-in-frame (string index)
# Line 1076  stack." Line 1022  stack."
1022     (multiple-value-list     (multiple-value-list
1023      (di:eval-in-frame (nth-frame index) (from-string string)))))      (di:eval-in-frame (nth-frame index) (from-string string)))))
1024    
1025  (defslimefun inspect-in-frame (string index)  (defimplementation frame-locals (index)
   (reset-inspector)  
   (inspect-object (di:eval-in-frame (nth-frame index) (from-string string))))  
   
 (defmethod frame-locals (index)  
1026    (let* ((frame (nth-frame index))    (let* ((frame (nth-frame index))
1027           (location (di:frame-code-location frame))           (location (di:frame-code-location frame))
1028           (debug-function (di:frame-debug-function frame))           (debug-function (di:frame-debug-function frame))
1029           (debug-variables (di::debug-function-debug-variables debug-function)))           (debug-variables (di::debug-function-debug-variables debug-function)))
1030      (loop for v across debug-variables      (loop for v across debug-variables collect
1031            collect (list            (list :name (to-string (di:debug-variable-symbol v))
1032                     :symbol (di:debug-variable-symbol v)                  :id (di:debug-variable-id v)
1033                     :id (di:debug-variable-id v)                  :value-string (ecase (di:debug-variable-validity v location)
1034                     :value-string                                  (:valid
1035                     (if (eq (di:debug-variable-validity v location)                                   (to-string (di:debug-variable-value v frame)))
1036                             :valid)                                  ((:invalid :unknown)
1037                         (to-string (di:debug-variable-value v frame))                                   "<not-available>"))))))
                        "<not-available>")))))  
1038    
1039  (defmethod frame-catch-tags (index)  (defimplementation frame-catch-tags (index)
1040    (loop for (tag . code-location) in (di:frame-catches (nth-frame index))    (loop for (tag . code-location) in (di:frame-catches (nth-frame index))
1041          collect `(,tag . ,(code-location-source-location code-location))))          collect `(,tag . ,(code-location-source-location code-location))))
1042    
# Line 1105  stack." Line 1046  stack."
1046  (defslimefun sldb-abort ()  (defslimefun sldb-abort ()
1047    (invoke-restart (find 'abort *sldb-restarts* :key #'restart-name)))    (invoke-restart (find 'abort *sldb-restarts* :key #'restart-name)))
1048    
1049    (defun set-step-breakpoints (frame)
1050      (when (di:debug-block-elsewhere-p (di:code-location-debug-block
1051                                         (di:frame-code-location frame)))
1052        (error "Cannot step, in elsewhere code~%"))
1053      (let* ((code-location (di:frame-code-location frame))
1054             (debug::*bad-code-location-types*
1055              (remove :call-site debug::*bad-code-location-types*))
1056             (next (debug::next-code-locations code-location)))
1057        (cond (next
1058               (let ((steppoints '()))
1059                 (flet ((hook (frame breakpoint)
1060                          (let ((debug:*stack-top-hint* frame))
1061                            (mapc #'di:delete-breakpoint steppoints)
1062                            (let ((cl (di::breakpoint-what breakpoint)))
1063                              (break "Breakpoint: ~S ~S"
1064                                     (di:code-location-kind cl)
1065                                     (di::compiled-code-location-pc cl))))))
1066                   (dolist (code-location next)
1067                     (let ((bp (di:make-breakpoint #'hook code-location
1068                                                   :kind :code-location)))
1069                       (di:activate-breakpoint bp)
1070                       (push bp steppoints))))))
1071             (t
1072              (flet ((hook (frame breakpoint values cookie)
1073                       (declare (ignore cookie))
1074                       (di:delete-breakpoint breakpoint)
1075                       (let ((debug:*stack-top-hint* frame))
1076                         (break "Function-end: ~A ~A" breakpoint values))))
1077                (let* ((debug-function (di:frame-debug-function frame))
1078                       (bp (di:make-breakpoint #'hook debug-function
1079                                               :kind :function-end)))
1080                  (di:activate-breakpoint bp)))))))
1081    
1082    (defslimefun sldb-step (frame)
1083      (cond ((find-restart 'continue *swank-debugger-condition*)
1084             (set-step-breakpoints (nth-frame frame))
1085             (continue *swank-debugger-condition*))
1086            (t
1087             (error "Cannot continue in from condition: ~A"
1088                    *swank-debugger-condition*))))
1089    
1090    (defun frame-cfp (frame)
1091      "Return the Control-Stack-Frame-Pointer for FRAME."
1092      (etypecase frame
1093        (di::compiled-frame (di::frame-pointer frame))
1094        ((or di::interpreted-frame null) -1)))
1095    
1096    (defun frame-ip (frame)
1097      "Return the (absolute) instruction pointer and the relative pc of FRAME."
1098      (if (not frame)
1099          -1
1100          (let ((debug-fun (di::frame-debug-function frame)))
1101            (etypecase debug-fun
1102              (di::compiled-debug-function
1103               (let* ((code-loc (di:frame-code-location frame))
1104                      (component (di::compiled-debug-function-component debug-fun))
1105                      (pc (di::compiled-code-location-pc code-loc))
1106                      (ip (sys:without-gcing
1107                           (sys:sap-int
1108                            (sys:sap+ (kernel:code-instructions component) pc)))))
1109                 (values ip pc)))
1110              ((or di::bogus-debug-function di::interpreted-debug-function)
1111               -1)))))
1112    
1113    (defun frame-registers (frame)
1114      "Return the lisp registers CSP, CFP, IP, OCFP, LRA for FRAME-NUMBER."
1115      (let* ((cfp (frame-cfp frame))
1116             (csp (frame-cfp (di::frame-up frame)))
1117             (ip (frame-ip frame))
1118             (ocfp (frame-cfp (di::frame-down frame)))
1119             (lra (frame-ip (di::frame-down frame))))
1120        (values csp cfp ip ocfp lra)))
1121    
1122    (defun print-frame-registers (frame-number)
1123      (let ((frame (di::frame-real-frame (nth-frame frame-number))))
1124        (flet ((fixnum (p) (etypecase p
1125                             (integer p)
1126                             (sys:system-area-pointer (sys:sap-int p)))))
1127          (apply #'format t "~
1128    CSP  =  ~X
1129    CFP  =  ~X
1130    IP   =  ~X
1131    OCFP =  ~X
1132    LRA  =  ~X~%" (mapcar #'fixnum
1133                          (multiple-value-list (frame-registers frame)))))))
1134    
1135    (defslimefun sldb-disassemble (frame-number)
1136      "Return a string with the disassembly of frames code."
1137        (with-output-to-string (*standard-output*)
1138          (print-frame-registers frame-number)
1139          (terpri)
1140          (let* ((frame (di::frame-real-frame (nth-frame frame-number)))
1141                 (debug-fun (di::frame-debug-function frame)))
1142            (etypecase debug-fun
1143              (di::compiled-debug-function
1144               (let* ((component (di::compiled-debug-function-component debug-fun))
1145                      (fun (di:debug-function-function debug-fun)))
1146                 (if fun
1147                     (disassemble fun)
1148                     (disassem:disassemble-code-component component))))
1149              (di::bogus-debug-function
1150               (format t "~%[Disassembling bogus frames not implemented]"))))))
1151    
1152    #+(or)
1153    (defun print-binding-stack ()
1154      (flet ((bsp- (p) (sys:sap+ p (- (* vm:binding-size vm:word-bytes))))
1155             (frob (p offset) (kernel:make-lisp-obj (sys:sap-ref-32 p offset))))
1156        (do ((bsp (bsp- (kernel:binding-stack-pointer-sap)) (bsp- bsp))
1157             (start (sys:int-sap (lisp::binding-stack-start))))
1158            ((sys:sap= bsp start))
1159          (format t "~X:  ~S = ~S~%"
1160                  (sys:sap-int bsp)
1161                  (frob bsp (* vm:binding-symbol-slot vm:word-bytes))
1162                  (frob bsp (* vm:binding-value-slot vm:word-bytes))))))
1163    
1164    ;; (print-binding-stack)
1165    
1166    #+(or)
1167    (defun print-catch-blocks ()
1168      (do ((b (di::descriptor-sap lisp::*current-catch-block*)
1169              (sys:sap-ref-sap b (* vm:catch-block-previous-catch-slot
1170                                    vm:word-bytes))))
1171          (nil)
1172        (let ((int (sys:sap-int b)))
1173          (when (zerop int) (return))
1174          (flet ((ref (offset) (sys:sap-ref-32 b (* offset vm:word-bytes))))
1175            (let ((uwp (ref vm:catch-block-current-uwp-slot))
1176                  (cfp (ref vm:catch-block-current-cont-slot))
1177                  (tag (ref vm:catch-block-tag-slot))
1178                  )
1179          (format t "~X:  uwp = ~8X  cfp = ~8X  tag = ~X~%"
1180                  int uwp cfp (kernel:make-lisp-obj tag)))))))
1181    
1182    ;; (print-catch-blocks)
1183    
1184    #+(or)
1185    (defun print-unwind-blocks ()
1186      (do ((b (di::descriptor-sap lisp::*current-unwind-protect-block*)
1187              (sys:sap-ref-sap b (* vm:unwind-block-current-uwp-slot
1188                                    vm:word-bytes))))
1189          (nil)
1190        (let ((int (sys:sap-int b)))
1191          (when (zerop int) (return))
1192          (flet ((ref (offset) (sys:sap-ref-32 b (* offset vm:word-bytes))))
1193            (let ((cfp (ref vm:unwind-block-current-cont-slot)))
1194              (format t "~X:  cfp = ~X~%" int cfp))))))
1195    
1196    ;; (print-unwind-blocks)
1197    
1198    
1199  ;;;; Inspecting  ;;;; Inspecting
1200    
 (defvar *inspectee*)  
 (defvar *inspectee-parts*)  
 (defvar *inspector-stack* '())  
 (defvar *inspector-history* (make-array 10 :adjustable t :fill-pointer 0))  
 (defvar *inspect-length* 30)  
   
 (defun reset-inspector ()  
   (setq *inspectee* nil)  
   (setq *inspectee-parts* nil)  
   (setq *inspector-stack* nil)  
   (setf (fill-pointer *inspector-history*) 0))  
   
 (defslimefun init-inspector (string)  
   (reset-inspector)  
   (inspect-object (eval (from-string string))))  
   
 (defun print-part-to-string (value)  
   (let ((*print-pretty* nil))  
     (let ((string (to-string value))  
           (pos (position value *inspector-history*)))  
       (if pos  
           (format nil "#~D=~A" pos string)  
           string))))  
   
 (defun inspect-object (object)  
   (push (setq *inspectee* object) *inspector-stack*)  
   (unless (find object *inspector-history*)  
     (vector-push-extend object *inspector-history*))  
   (multiple-value-bind (text parts) (inspected-parts object)  
     (setq *inspectee-parts* parts)  
       (list :text text  
             :type (to-string (type-of object))  
             :primitive-type (describe-primitive-type object)  
             :parts (loop for (label . value) in parts  
                          collect (cons label  
                                        (print-part-to-string value))))))  
1201  (defconstant +lowtag-symbols+  (defconstant +lowtag-symbols+
1202    '(vm:even-fixnum-type    '(vm:even-fixnum-type
1203      vm:function-pointer-type      vm:function-pointer-type
# Line 1168  stack." Line 1222  stack."
1222       (append (apropos-list "-TYPE" "VM" t)       (append (apropos-list "-TYPE" "VM" t)
1223               (apropos-list "-TYPE" "BIGNUM" t)))))               (apropos-list "-TYPE" "BIGNUM" t)))))
1224    
1225  (defun describe-primitive-type (object)  
1226    (defimplementation describe-primitive-type (object)
1227    (with-output-to-string (*standard-output*)    (with-output-to-string (*standard-output*)
1228      (let* ((lowtag (kernel:get-lowtag object))      (let* ((lowtag (kernel:get-lowtag object))
1229             (lowtag-symbol (find lowtag +lowtag-symbols+ :key #'symbol-value)))             (lowtag-symbol (find lowtag +lowtag-symbols+ :key #'symbol-value)))
# Line 1184  stack." Line 1239  stack."
1239                 (format t ", type: ~A]" type-symbol)))                 (format t ", type: ~A]" type-symbol)))
1240              (t (format t "]"))))))              (t (format t "]"))))))
1241    
1242  (defun nth-part (index)  (defimplementation inspected-parts (o)
   (cdr (nth index *inspectee-parts*)))  
   
 (defslimefun inspect-nth-part (index)  
   (inspect-object (nth-part index)))  
   
 (defslimefun inspector-pop ()  
   "Drop the inspector stack and inspect the second element.  Return  
 nil if there's no second element."  
   (cond ((cdr *inspector-stack*)  
          (pop *inspector-stack*)  
          (inspect-object (pop *inspector-stack*)))  
         (t nil)))  
   
 (defslimefun inspector-next ()  
   "Inspect the next element in the *inspector-history*."  
   (let ((position (position *inspectee* *inspector-history*)))  
     (cond ((= (1+ position) (length *inspector-history*))  
            nil)  
           (t (inspect-object (aref *inspector-history* (1+ position)))))))  
   
 (defslimefun quit-inspector ()  
   (reset-inspector)  
   nil)  
   
 (defslimefun describe-inspectee ()  
   "Describe the currently inspected object."  
   (print-description-to-string *inspectee*))  
   
 (defgeneric inspected-parts (object)  
   (:documentation  
    "Return a short description and a list of (label . value) pairs."))  
   
 (defmethod inspected-parts (o)  
1243    (cond ((di::indirect-value-cell-p o)    (cond ((di::indirect-value-cell-p o)
1244           (inspected-parts-of-value-cell o))           (inspected-parts-of-value-cell o))
1245          (t          (t
# Line 1235  nil if there's no second element." Line 1257  nil if there's no second element."
1257    (values (format nil "~A~% is a value cell." o)    (values (format nil "~A~% is a value cell." o)
1258            (list (cons "Value" (c:value-cell-ref o)))))            (list (cons "Value" (c:value-cell-ref o)))))
1259    
 ;; borrowed from sbcl  
 (defmethod inspected-parts ((object cons))  
   (if (consp (cdr object))  
       (inspected-parts-of-nontrivial-list object)  
       (inspected-parts-of-simple-cons object)))  
   
 (defun inspected-parts-of-simple-cons (object)  
   (values "The object is a CONS."  
           (list (cons (string 'car) (car object))  
                 (cons (string 'cdr) (cdr object)))))  
   
 (defun inspected-parts-of-nontrivial-list (object)  
   (let ((length 0)  
         (in-list object)  
         (reversed-elements nil))  
     (flet ((done (description-format)  
              (return-from inspected-parts-of-nontrivial-list  
                (values (format nil description-format length)  
                        (nreverse reversed-elements)))))  
       (loop  
        (cond ((null in-list)  
               (done "The object is a proper list of length ~S.~%"))  
              ((>= length *inspect-length*)  
               (push (cons  (string 'rest) in-list) reversed-elements)  
               (done "The object is a long list (more than ~S elements).~%"))  
              ((consp in-list)  
               (push (cons (format nil "~D" length) (pop in-list))  
                     reversed-elements)  
               (incf length))  
              (t  
               (push (cons (string 'rest) in-list) reversed-elements)  
               (done "The object is an improper list of length ~S.~%")))))))  
   
1260  (defmethod inspected-parts ((o function))  (defmethod inspected-parts ((o function))
1261    (let ((header (kernel:get-type o)))    (let ((header (kernel:get-type o)))
1262      (cond ((= header vm:function-header-type)      (cond ((= header vm:function-header-type)
# Line 1304  nil if there's no second element." Line 1293  nil if there's no second element."
1293            `(("Name" . ,(kernel:fdefn-name o))            `(("Name" . ,(kernel:fdefn-name o))
1294              ("Function" . ,(kernel:fdefn-function o)))))              ("Function" . ,(kernel:fdefn-function o)))))
1295    
1296    
1297    ;;;; Profiling
1298    (defimplementation profile (fname)
1299      (eval `(profile:profile ,fname)))
1300    
1301    (defimplementation unprofile (fname)
1302      (eval `(profile:unprofile ,fname)))
1303    
1304    (defimplementation unprofile-all ()
1305      (profile:unprofile)
1306      "All functions unprofiled.")
1307    
1308    (defimplementation profile-report ()
1309      (profile:report-time))
1310    
1311    (defimplementation profile-reset ()
1312      (profile:reset-time)
1313      "Reset profiling counters.")
1314    
1315    (defimplementation profiled-functions ()
1316      profile:*timed-functions*)
1317    
1318    (defimplementation profile-package (package callers methods)
1319      (profile:profile-all :package package
1320                           :callers-p callers
1321                           :methods methods))
1322    
1323    
1324    ;;;; Multiprocessing
1325    
1326    #+MP
1327    (progn
1328      (defimplementation startup-multiprocessing ()
1329        (setq *swank-in-background* :spawn)
1330        ;; Threads magic: this never returns! But top-level becomes
1331        ;; available again.
1332        (mp::startup-idle-and-top-level-loops))
1333    
1334      (defimplementation spawn (fn &key (name "Anonymous"))
1335        (mp:make-process fn :name name))
1336    
1337      (defimplementation thread-name (thread)
1338        (mp:process-name thread))
1339    
1340      (defimplementation thread-status (thread)
1341        (mp:process-whostate thread))
1342    
1343      (defimplementation current-thread ()
1344        mp:*current-process*)
1345    
1346      (defimplementation all-threads ()
1347        (copy-list mp:*all-processes*))
1348    
1349      (defimplementation interrupt-thread (thread fn)
1350        (mp:process-interrupt thread fn))
1351    
1352      (defimplementation kill-thread (thread)
1353        (mp:destroy-process thread))
1354    
1355      (defvar *mailbox-lock* (mp:make-lock "mailbox lock"))
1356    
1357      (defstruct (mailbox (:conc-name mailbox.))
1358        (mutex (mp:make-lock "process mailbox"))
1359        (queue '() :type list))
1360    
1361      (defun mailbox (thread)
1362        "Return THREAD's mailbox."
1363        (mp:with-lock-held (*mailbox-lock*)
1364          (or (getf (mp:process-property-list thread) 'mailbox)
1365              (setf (getf (mp:process-property-list thread) 'mailbox)
1366                    (make-mailbox)))))
1367    
1368      (defimplementation send (thread message)
1369        (let* ((mbox (mailbox thread))
1370               (mutex (mailbox.mutex mbox)))
1371          (mp:with-lock-held (mutex)
1372            (setf (mailbox.queue mbox)
1373                  (nconc (mailbox.queue mbox) (list message))))))
1374    
1375      (defimplementation receive ()
1376        (let* ((mbox (mailbox mp:*current-process*))
1377               (mutex (mailbox.mutex mbox)))
1378          (mp:process-wait "receive" #'mailbox.queue mbox)
1379          (mp:with-lock-held (mutex)
1380            (pop (mailbox.queue mbox)))))
1381    
1382      )
1383    
1384    
1385    ;;;; Epilogue
1386  ;;; Local Variables:  ;;; Local Variables:
1387  ;;; eval: (font-lock-add-keywords 'lisp-mode '(("(\\(defslimefun\\)\\s +\\(\\(\\w\\|\\s_\\)+\\)"  (1 font-lock-keyword-face) (2 font-lock-function-name-face))))  ;;; eval: (font-lock-add-keywords 'lisp-mode '(("(\\(defslimefun\\)\\s +\\(\\(\\w\\|\\s_\\)+\\)"  (1 font-lock-keyword-face) (2 font-lock-function-name-face))))
1388  ;;; End:  ;;; End:

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