1 ;;;; heap-grovelling memory usage stuff
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; This software is derived from the CMU CL system, which was
7 ;;;; written at Carnegie Mellon University and released into the
8 ;;;; public domain. The software is in the public domain and is
9 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
10 ;;;; files for more information.
14 ;;;; type format database
16 (eval-when (:compile-toplevel :load-toplevel :execute)
17 (def!struct (room-info (:make-load-form-fun just-dump-it-normally))
18 ;; the name of this type
19 (name nil :type symbol)
20 ;; kind of type (how we determine length)
22 :type (member :lowtag :fixed :header :vector
23 :string :code :closure :instance))
24 ;; length if fixed-length, shift amount for element size if :VECTOR
25 (length nil :type (or fixnum null))))
27 (eval-when (:compile-toplevel :execute)
29 (defvar *meta-room-info* (make-array 256 :initial-element nil))
31 (dolist (obj *primitive-objects*)
32 (let ((widetag (primitive-object-widetag obj))
33 (lowtag (primitive-object-lowtag obj))
34 (name (primitive-object-name obj))
35 (variable (primitive-object-variable-length-p obj))
36 (size (primitive-object-size obj)))
39 (;; KLUDGE described in dan_b message "Another one for the
40 ;; collection [bug 108]" (sbcl-devel 2004-01-22)
42 ;; In a freshly started SBCL 0.8.7.20ish, (TIME (ROOM T)) causes
43 ;; debugger invoked on a SB-INT:BUG in thread 5911:
44 ;; failed AVER: "(SAP= CURRENT END)"
45 ;; [WHN: Similar things happened on one but not the other of my
46 ;; machines when I just run ROOM a lot in a loop.]
48 ;; This appears to be due to my [DB] abuse of the primitive
49 ;; object macros to define a thread object that shares a lowtag
50 ;; with fixnums and has no widetag: it looks like the code that
51 ;; generates *META-ROOM-INFO* infers from this that even fixnums
52 ;; are thread-sized - probably undesirable.
54 ;; This [the fix; the EQL NAME 'THREAD clause here] is more in the
55 ;; nature of a workaround than a really good fix. I'm not sure
56 ;; what a really good fix is: I /think/ it's probably to remove
57 ;; the :LOWTAG option in DEFINE-PRIMITIVE-OBJECT THREAD, then teach
58 ;; genesis to generate the necessary OBJECT_SLOT_OFFSET macros
59 ;; for assembly source in the runtime/genesis/*.h files.
62 (let ((info (make-room-info :name name
64 (lowtag (symbol-value lowtag)))
65 (declare (fixnum lowtag))
67 (setf (svref *meta-room-info* (logior lowtag (ash i 3))) info))))
70 (setf (svref *meta-room-info* (symbol-value widetag))
71 (make-room-info :name name
75 (dolist (code (list #!+sb-unicode complex-character-string-widetag
76 complex-base-string-widetag simple-array-widetag
77 complex-bit-vector-widetag complex-vector-widetag
78 complex-array-widetag complex-vector-nil-widetag))
79 (setf (svref *meta-room-info* code)
80 (make-room-info :name 'array-header
83 (setf (svref *meta-room-info* bignum-widetag)
84 (make-room-info :name 'bignum
87 (setf (svref *meta-room-info* closure-header-widetag)
88 (make-room-info :name 'closure
91 ;; FIXME: This looks rather brittle. Can we get more of these numbers
92 ;; from somewhere sensible?
93 (dolist (stuff '((simple-bit-vector-widetag . -3)
94 (simple-vector-widetag . #.sb!vm:word-shift)
95 (simple-array-unsigned-byte-2-widetag . -2)
96 (simple-array-unsigned-byte-4-widetag . -1)
97 (simple-array-unsigned-byte-7-widetag . 0)
98 (simple-array-unsigned-byte-8-widetag . 0)
99 (simple-array-unsigned-byte-15-widetag . 1)
100 (simple-array-unsigned-byte-16-widetag . 1)
101 (simple-array-unsigned-byte-31-widetag . 2)
102 (simple-array-unsigned-byte-32-widetag . 2)
103 (simple-array-unsigned-byte-60-widetag . 3)
104 (simple-array-unsigned-byte-63-widetag . 3)
105 (simple-array-unsigned-byte-64-widetag . 3)
106 (simple-array-signed-byte-8-widetag . 0)
107 (simple-array-signed-byte-16-widetag . 1)
108 (simple-array-unsigned-byte-29-widetag . 2)
109 (simple-array-signed-byte-30-widetag . 2)
110 (simple-array-signed-byte-32-widetag . 2)
111 (simple-array-signed-byte-61-widetag . 3)
112 (simple-array-signed-byte-64-widetag . 3)
113 (simple-array-single-float-widetag . 2)
114 (simple-array-double-float-widetag . 3)
115 (simple-array-complex-single-float-widetag . 3)
116 (simple-array-complex-double-float-widetag . 4)))
117 (let* ((name (car stuff))
119 (sname (string name)))
121 (setf (svref *meta-room-info* (symbol-value name))
122 (make-room-info :name (intern (subseq sname
124 (mismatch sname "-WIDETAG"
129 (setf (svref *meta-room-info* simple-base-string-widetag)
130 (make-room-info :name 'simple-base-string
135 (setf (svref *meta-room-info* simple-character-string-widetag)
136 (make-room-info :name 'simple-character-string
140 (setf (svref *meta-room-info* simple-array-nil-widetag)
141 (make-room-info :name 'simple-array-nil
145 (setf (svref *meta-room-info* code-header-widetag)
146 (make-room-info :name 'code
149 (setf (svref *meta-room-info* instance-header-widetag)
150 (make-room-info :name 'instance
155 (defparameter *room-info* '#.*meta-room-info*)
156 (deftype spaces () '(member :static :dynamic :read-only))
158 ;;;; MAP-ALLOCATED-OBJECTS
160 ;;; Since they're represented as counts of words, we should never
161 ;;; need bignums to represent these:
162 (declaim (type fixnum
163 *static-space-free-pointer*
164 *read-only-space-free-pointer*))
166 (defun space-bounds (space)
167 (declare (type spaces space))
170 (values (int-sap static-space-start)
171 (int-sap (* *static-space-free-pointer* n-word-bytes))))
173 (values (int-sap read-only-space-start)
174 (int-sap (* *read-only-space-free-pointer* n-word-bytes))))
176 (values (int-sap (current-dynamic-space-start))
177 (dynamic-space-free-pointer)))))
179 ;;; Return the total number of bytes used in SPACE.
180 (defun space-bytes (space)
181 (multiple-value-bind (start end) (space-bounds space)
182 (- (sap-int end) (sap-int start))))
184 ;;; Round SIZE (in bytes) up to the next dualword boundary. A dualword
185 ;;; is eight bytes on platforms with 32-bit word size and 16 bytes on
186 ;;; platforms with 64-bit word size.
187 #!-sb-fluid (declaim (inline round-to-dualword))
188 (defun round-to-dualword (size)
189 (declare (unsigned-byte size))
190 (ldb (byte n-word-bits 0)
191 (logand (+ size lowtag-mask) (lognot lowtag-mask))))
193 ;;; Return the total size of a vector in bytes, including any pad.
194 #!-sb-fluid (declaim (inline vector-total-size))
195 (defun vector-total-size (obj info)
196 (declare (type (simple-array * (*)) obj))
197 (let ((shift (room-info-length info))
199 (ecase (room-info-kind info)
203 (+ (* vector-data-offset n-word-bytes)
205 (ash (+ len (1- (ash 1 (- shift))))
209 ;;; Access to the GENCGC page table for better precision in
210 ;;; MAP-ALLOCATED-OBJECTS
213 (define-alien-type (struct page)
216 ;; On platforms with small enough GC pages, this field
217 ;; will be a short. On platforms with larger ones, it'll
219 (bytes-used (unsigned
220 #.(if (typep sb!vm:gencgc-page-size
226 (declaim (inline find-page-index))
227 (define-alien-routine "find_page_index" long (index long))
228 (define-alien-variable "page_table" (* (struct page))))
230 ;;; Iterate over all the objects allocated in SPACE, calling FUN with
231 ;;; the object, the object's type code, and the object's total size in
232 ;;; bytes, including any header and padding.
233 #!-sb-fluid (declaim (maybe-inline map-allocated-objects))
234 (defun map-allocated-objects (fun space)
235 (declare (type function fun) (type spaces space))
237 (multiple-value-bind (start end) (space-bounds space)
238 (declare (type system-area-pointer start end))
239 (declare (optimize (speed 3)))
240 (let ((current start)
241 #!+gencgc (skip-tests-until-addr 0))
242 (labels ((maybe-finish-mapping ()
243 (unless (sap< current end)
244 (aver (sap= current end))
245 (return-from map-allocated-objects)))
246 ;; GENCGC doesn't allocate linearly, which means that the
247 ;; dynamic space can contain large blocks zeros that get
248 ;; accounted as conses in ROOM (and slow down other
249 ;; applications of MAP-ALLOCATED-OBJECTS). To fix this
250 ;; check the GC page structure for the current address.
251 ;; If the page is free or the address is beyond the page-
252 ;; internal allocation offset (bytes-used) skip to the
253 ;; next page immediately.
256 (when (eq space :dynamic)
257 (loop with page-mask = #.(1- sb!vm:gencgc-page-size)
258 for addr of-type sb!vm:word = (sap-int current)
259 while (>= addr skip-tests-until-addr)
261 ;; For some reason binding PAGE with LET
262 ;; conses like mad (but gives no compiler notes...)
263 ;; Work around the problem with SYMBOL-MACROLET
264 ;; instead of trying to figure out the real
265 ;; issue. -- JES, 2005-05-17
267 ((page (deref page-table
268 (find-page-index addr))))
269 ;; Don't we have any nicer way to access C struct
271 (let ((alloc-flag (ldb (byte 3 2)
273 (bytes-used (slot page 'bytes-used)))
274 ;; If the page is not free and the current
275 ;; pointer is still below the allocation offset
277 (when (and (not (zerop alloc-flag))
278 (<= (logand page-mask addr)
280 ;; Don't bother testing again until we
281 ;; get past that allocation offset
282 (setf skip-tests-until-addr
283 (+ (logandc2 addr page-mask) bytes-used))
284 ;; And then continue with the scheduled
286 (return-from maybe-skip-page))
287 ;; Move CURRENT to start of next page
288 (setf current (int-sap (+ (logandc2 addr page-mask)
289 sb!vm:gencgc-page-size)))
290 (maybe-finish-mapping)))))))
291 (declare (inline maybe-finish-mapping maybe-skip-page))
293 (maybe-finish-mapping)
295 (let* ((header (sap-ref-word current 0))
296 (header-widetag (logand header #xFF))
297 (info (svref *room-info* header-widetag)))
300 (eq (room-info-kind info) :lowtag))
301 (let ((size (* cons-size n-word-bytes)))
303 (make-lisp-obj (logior (sap-int current)
304 list-pointer-lowtag))
307 (setq current (sap+ current size))))
308 ((eql header-widetag closure-header-widetag)
309 (let* ((obj (make-lisp-obj (logior (sap-int current)
310 fun-pointer-lowtag)))
311 (size (round-to-dualword
312 (* (1+ (get-closure-length obj)) n-word-bytes))))
313 (funcall fun obj header-widetag size)
314 (setq current (sap+ current size))))
315 ((eq (room-info-kind info) :instance)
316 (let* ((obj (make-lisp-obj
317 (logior (sap-int current) instance-pointer-lowtag)))
318 (size (round-to-dualword
319 (* (+ (%instance-length obj) 1) n-word-bytes))))
320 (declare (fixnum size))
321 (funcall fun obj header-widetag size)
322 (aver (zerop (logand size lowtag-mask)))
323 (setq current (sap+ current size))))
325 (let* ((obj (make-lisp-obj
326 (logior (sap-int current) other-pointer-lowtag)))
327 (size (ecase (room-info-kind info)
329 (aver (or (eql (room-info-length info)
330 (1+ (get-header-data obj)))
332 (simple-array-nil-p obj)))
334 (* (room-info-length info) n-word-bytes)))
336 (vector-total-size obj info))
339 (* (1+ (get-header-data obj)) n-word-bytes)))
341 (+ (* (get-header-data obj) n-word-bytes)
343 (* (%code-code-size obj) n-word-bytes)))))))
344 (funcall fun obj header-widetag size)
345 (aver (zerop (logand size lowtag-mask)))
346 (setq current (sap+ current size))))))))))))
351 ;;; Return a list of 3-lists (bytes object type-name) for the objects
352 ;;; allocated in Space.
353 (defun type-breakdown (space)
354 (let ((sizes (make-array 256 :initial-element 0))
355 (counts (make-array 256 :initial-element 0 :element-type 'fixnum)))
356 (map-allocated-objects
357 (lambda (obj type size)
358 (declare (index type) (optimize (speed 3)) (ignore obj))
359 (incf (aref sizes type) size)
360 (incf (aref counts type)))
363 (let ((totals (make-hash-table :test 'eq)))
365 (let ((total-count (aref counts i)))
366 (unless (zerop total-count)
367 (let* ((total-size (aref sizes i))
368 (name (room-info-name (aref *room-info* i)))
369 (found (gethash name totals)))
371 (incf (first found) total-size)
372 (incf (second found) total-count))
374 (setf (gethash name totals)
375 (list total-size total-count name))))))))
377 (collect ((totals-list))
378 (maphash (lambda (k v)
382 (sort (totals-list) #'> :key #'first)))))
384 ;;; Handle the summary printing for MEMORY-USAGE. Totals is a list of lists
385 ;;; (space-name . totals-for-space), where totals-for-space is the list
386 ;;; returned by TYPE-BREAKDOWN.
387 (defun print-summary (spaces totals)
388 (let ((summary (make-hash-table :test 'eq)))
389 (dolist (space-total totals)
390 (dolist (total (cdr space-total))
391 (push (cons (car space-total) total)
392 (gethash (third total) summary))))
394 (collect ((summary-totals))
395 (maphash (lambda (k v)
398 (dolist (space-total v)
399 (incf sum (first (cdr space-total))))
400 (summary-totals (cons sum v))))
403 (format t "~2&Summary of spaces: ~(~{~A ~}~)~%" spaces)
404 (let ((summary-total-bytes 0)
405 (summary-total-objects 0))
406 (declare (fixnum summary-total-objects))
407 (dolist (space-totals
408 (mapcar #'cdr (sort (summary-totals) #'> :key #'car)))
409 (let ((total-objects 0)
412 (declare (fixnum total-objects))
414 (dolist (space-total space-totals)
415 (let ((total (cdr space-total)))
416 (setq name (third total))
417 (incf total-bytes (first total))
418 (incf total-objects (second total))
419 (spaces (cons (car space-total) (first total)))))
420 (format t "~%~A:~% ~:D bytes, ~:D object~:P"
421 name total-bytes total-objects)
422 (dolist (space (spaces))
423 (format t ", ~W% ~(~A~)"
424 (round (* (cdr space) 100) total-bytes)
427 (incf summary-total-bytes total-bytes)
428 (incf summary-total-objects total-objects))))
429 (format t "~%Summary total:~% ~:D bytes, ~:D objects.~%"
430 summary-total-bytes summary-total-objects)))))
432 ;;; Report object usage for a single space.
433 (defun report-space-total (space-total cutoff)
434 (declare (list space-total) (type (or single-float null) cutoff))
435 (format t "~2&Breakdown for ~(~A~) space:~%" (car space-total))
436 (let* ((types (cdr space-total))
437 (total-bytes (reduce #'+ (mapcar #'first types)))
438 (total-objects (reduce #'+ (mapcar #'second types)))
439 (cutoff-point (if cutoff
440 (truncate (* (float total-bytes) cutoff))
443 (reported-objects 0))
444 (declare (fixnum total-objects cutoff-point reported-objects))
445 (loop for (bytes objects name) in types do
446 (when (<= bytes cutoff-point)
447 (format t " ~10:D bytes for ~9:D other object~2:*~P.~%"
448 (- total-bytes reported-bytes)
449 (- total-objects reported-objects))
451 (incf reported-bytes bytes)
452 (incf reported-objects objects)
453 (format t " ~10:D bytes for ~9:D ~(~A~) object~2:*~P.~%"
455 (format t " ~10:D bytes for ~9:D ~(~A~) object~2:*~P (space total.)~%"
456 total-bytes total-objects (car space-total))))
458 ;;; Print information about the heap memory in use. PRINT-SPACES is a
459 ;;; list of the spaces to print detailed information for.
460 ;;; COUNT-SPACES is a list of the spaces to scan. For either one, T
461 ;;; means all spaces (i.e. :STATIC, :DYNAMIC and :READ-ONLY.) If
462 ;;; PRINT-SUMMARY is true, then summary information will be printed.
463 ;;; The defaults print only summary information for dynamic space. If
464 ;;; true, CUTOFF is a fraction of the usage in a report below which
465 ;;; types will be combined as OTHER.
466 (defun memory-usage (&key print-spaces (count-spaces '(:dynamic))
467 (print-summary t) cutoff)
468 (declare (type (or single-float null) cutoff))
469 (let* ((spaces (if (eq count-spaces t)
470 '(:static :dynamic :read-only)
472 (totals (mapcar (lambda (space)
473 (cons space (type-breakdown space)))
476 (dolist (space-total totals)
477 (when (or (eq print-spaces t)
478 (member (car space-total) print-spaces))
479 (report-space-total space-total cutoff)))
481 (when print-summary (print-summary spaces totals)))
485 ;;; Print info about how much code and no-ops there are in SPACE.
486 (defun count-no-ops (space)
487 (declare (type spaces space))
491 (declare (fixnum code-words no-ops)
492 (type unsigned-byte total-bytes))
493 (map-allocated-objects
494 (lambda (obj type size)
495 (declare (fixnum size))
496 (when (eql type code-header-widetag)
497 (incf total-bytes size)
498 (let ((words (%code-code-size obj))
499 (sap (code-instructions obj)))
500 (incf code-words words)
502 (when (zerop (sap-ref-word sap (* i n-word-bytes)))
507 "~:D code-object bytes, ~:D code words, with ~:D no-ops (~D%).~%"
508 total-bytes code-words no-ops
509 (round (* no-ops 100) code-words)))
513 (defun descriptor-vs-non-descriptor-storage (&rest spaces)
514 (let ((descriptor-words 0)
515 (non-descriptor-headers 0)
516 (non-descriptor-bytes 0))
517 (declare (type unsigned-byte descriptor-words non-descriptor-headers
518 non-descriptor-bytes))
519 (dolist (space (or spaces '(:read-only :static :dynamic)))
520 (declare (inline map-allocated-objects))
521 (map-allocated-objects
522 (lambda (obj type size)
523 (declare (fixnum size))
525 (#.code-header-widetag
526 (let ((inst-words (%code-code-size obj)))
527 (declare (type fixnum inst-words))
528 (incf non-descriptor-bytes (* inst-words n-word-bytes))
529 (incf descriptor-words
530 (- (truncate size n-word-bytes) inst-words))))
532 #.single-float-widetag
533 #.double-float-widetag
534 #.simple-base-string-widetag
535 #!+sb-unicode #.simple-character-string-widetag
536 #.simple-array-nil-widetag
537 #.simple-bit-vector-widetag
538 #.simple-array-unsigned-byte-2-widetag
539 #.simple-array-unsigned-byte-4-widetag
540 #.simple-array-unsigned-byte-8-widetag
541 #.simple-array-unsigned-byte-16-widetag
542 #.simple-array-unsigned-byte-32-widetag
543 #.simple-array-signed-byte-8-widetag
544 #.simple-array-signed-byte-16-widetag
545 ; #.simple-array-signed-byte-30-widetag
546 #.simple-array-signed-byte-32-widetag
547 #.simple-array-single-float-widetag
548 #.simple-array-double-float-widetag
549 #.simple-array-complex-single-float-widetag
550 #.simple-array-complex-double-float-widetag)
551 (incf non-descriptor-headers)
552 (incf non-descriptor-bytes (- size n-word-bytes)))
553 ((#.list-pointer-lowtag
554 #.instance-pointer-lowtag
557 #.simple-array-widetag
558 #.simple-vector-widetag
559 #.complex-base-string-widetag
560 #.complex-vector-nil-widetag
561 #.complex-bit-vector-widetag
562 #.complex-vector-widetag
563 #.complex-array-widetag
564 #.closure-header-widetag
565 #.funcallable-instance-header-widetag
566 #.value-cell-header-widetag
567 #.symbol-header-widetag
569 #.weak-pointer-widetag
570 #.instance-header-widetag)
571 (incf descriptor-words (truncate size n-word-bytes)))
573 (error "bogus widetag: ~W" type))))
575 (format t "~:D words allocated for descriptor objects.~%"
577 (format t "~:D bytes data/~:D words header for non-descriptor objects.~%"
578 non-descriptor-bytes non-descriptor-headers)
581 ;;; Print a breakdown by instance type of all the instances allocated
582 ;;; in SPACE. If TOP-N is true, print only information for the
583 ;;; TOP-N types with largest usage.
584 (defun instance-usage (space &key (top-n 15))
585 (declare (type spaces space) (type (or fixnum null) top-n))
586 (format t "~2&~@[Top ~W ~]~(~A~) instance types:~%" top-n space)
587 (let ((totals (make-hash-table :test 'eq))
590 (declare (fixnum total-objects))
591 (map-allocated-objects
592 (lambda (obj type size)
593 (declare (fixnum size) (optimize (speed 3)))
594 (when (eql type instance-header-widetag)
596 (incf total-bytes size)
597 (let* ((classoid (layout-classoid (%instance-ref obj 0)))
598 (found (gethash classoid totals)))
601 (incf (cdr found) size))
603 (setf (gethash classoid totals) (cons 1 size)))))))
606 (collect ((totals-list))
607 (maphash (lambda (classoid what)
608 (totals-list (cons (prin1-to-string
609 (classoid-proper-name classoid))
612 (let ((sorted (sort (totals-list) #'> :key #'cddr))
615 (declare (fixnum printed-objects))
616 (dolist (what (if top-n
617 (subseq sorted 0 (min (length sorted) top-n))
619 (let ((bytes (cddr what))
620 (objects (cadr what)))
621 (incf printed-bytes bytes)
622 (incf printed-objects objects)
623 (format t " ~A: ~:D bytes, ~:D object~:P.~%" (car what)
626 (let ((residual-objects (- total-objects printed-objects))
627 (residual-bytes (- total-bytes printed-bytes)))
628 (unless (zerop residual-objects)
629 (format t " Other types: ~:D bytes, ~:D object~:P.~%"
630 residual-bytes residual-objects))))
632 (format t " ~:(~A~) instance total: ~:D bytes, ~:D object~:P.~%"
633 space total-bytes total-objects)))
637 ;;;; PRINT-ALLOCATED-OBJECTS
639 (defun print-allocated-objects (space &key (percent 0) (pages 5)
640 type larger smaller count
641 (stream *standard-output*))
642 (declare (type (integer 0 99) percent) (type index pages)
643 (type stream stream) (type spaces space)
644 (type (or index null) type larger smaller count))
645 (multiple-value-bind (start-sap end-sap) (space-bounds space)
646 (let* ((space-start (sap-int start-sap))
647 (space-end (sap-int end-sap))
648 (space-size (- space-end space-start))
649 (pagesize (sb!sys:get-page-size))
650 (start (+ space-start (round (* space-size percent) 100)))
651 (printed-conses (make-hash-table :test 'eq))
655 (declare (type (unsigned-byte 32) last-page start)
656 (fixnum pages-so-far count-so-far pagesize))
657 (labels ((note-conses (x)
658 (unless (or (atom x) (gethash x printed-conses))
659 (setf (gethash x printed-conses) t)
660 (note-conses (car x))
661 (note-conses (cdr x)))))
662 (map-allocated-objects
663 (lambda (obj obj-type size)
664 (let ((addr (get-lisp-obj-address obj)))
665 (when (>= addr start)
667 (> count-so-far count)
668 (> pages-so-far pages))
669 (return-from print-allocated-objects (values)))
672 (let ((this-page (* (truncate addr pagesize) pagesize)))
673 (declare (type (unsigned-byte 32) this-page))
674 (when (/= this-page last-page)
675 (when (< pages-so-far pages)
676 ;; FIXME: What is this? (ERROR "Argh..")? or
677 ;; a warning? or code that can be removed
678 ;; once the system is stable? or what?
679 (format stream "~2&**** Page ~W, address ~X:~%"
681 (setq last-page this-page)
682 (incf pages-so-far))))
684 (when (and (or (not type) (eql obj-type type))
685 (or (not smaller) (<= size smaller))
686 (or (not larger) (>= size larger)))
689 (#.code-header-widetag
690 (let ((dinfo (%code-debug-info obj)))
691 (format stream "~&Code object: ~S~%"
693 (sb!c::compiled-debug-info-name dinfo)
695 (#.symbol-header-widetag
696 (format stream "~&~S~%" obj))
697 (#.list-pointer-lowtag
698 (unless (gethash obj printed-conses)
700 (let ((*print-circle* t)
703 (format stream "~&~S~%" obj))))
706 (let ((str (write-to-string obj :level 5 :length 10
708 (unless (eql type instance-header-widetag)
709 (format stream "~S: " (type-of obj)))
710 (format stream "~A~%"
711 (subseq str 0 (min (length str) 60))))))))))
715 ;;;; LIST-ALLOCATED-OBJECTS, LIST-REFERENCING-OBJECTS
717 (defvar *ignore-after* nil)
719 (defun valid-obj (space x)
720 (or (not (eq space :dynamic))
721 ;; this test looks bogus if the allocator doesn't work linearly,
722 ;; which I suspect is the case for GENCGC. -- CSR, 2004-06-29
723 (< (get-lisp-obj-address x) (get-lisp-obj-address *ignore-after*))))
725 (defun maybe-cons (space x stuff)
726 (if (valid-obj space x)
730 (defun list-allocated-objects (space &key type larger smaller count
732 (declare (type spaces space)
733 (type (or index null) larger smaller type count)
734 (type (or function null) test)
735 (inline map-allocated-objects))
736 (unless *ignore-after*
737 (setq *ignore-after* (cons 1 2)))
738 (collect ((counted 0 1+))
740 (map-allocated-objects
741 (lambda (obj obj-type size)
742 (when (and (or (not type) (eql obj-type type))
743 (or (not smaller) (<= size smaller))
744 (or (not larger) (>= size larger))
745 (or (not test) (funcall test obj)))
746 (setq res (maybe-cons space obj res))
747 (when (and count (>= (counted) count))
748 (return-from list-allocated-objects res))))
752 (defun map-referencing-objects (fun space object)
753 (declare (type spaces space) (inline map-allocated-objects))
754 (unless *ignore-after*
755 (setq *ignore-after* (cons 1 2)))
756 (flet ((maybe-call (fun obj)
757 (when (valid-obj space obj)
759 (map-allocated-objects
760 (lambda (obj obj-type size)
761 (declare (ignore obj-type size))
764 (when (or (eq (car obj) object)
765 (eq (cdr obj) object))
766 (maybe-call fun obj)))
768 (dotimes (i (%instance-length obj))
769 (when (eq (%instance-ref obj i) object)
773 (let ((length (get-header-data obj)))
774 (do ((i code-constants-offset (1+ i)))
776 (when (eq (code-header-ref obj i) object)
780 (dotimes (i (length obj))
781 (when (eq (svref obj i) object)
785 (when (or (eq (symbol-name obj) object)
786 (eq (symbol-package obj) object)
787 (eq (symbol-plist obj) object)
788 (eq (symbol-value obj) object))
789 (maybe-call fun obj)))))
792 (defun list-referencing-objects (space object)
794 (map-referencing-objects
795 (lambda (obj) (res obj)) space object)