;;;; files for more information.
(in-package "SB!VM")
+
+(declaim (special sb!vm:*read-only-space-free-pointer*
+ sb!vm:*static-space-free-pointer*))
\f
;;;; type format database
(def!struct (room-info (:make-load-form-fun just-dump-it-normally))
;; the name of this type
(name nil :type symbol)
- ;; kind of type (how we determine length)
+ ;; kind of type (how to reconstitute an object)
(kind (missing-arg)
- :type (member :lowtag :fixed :header :vector
- :string :code :closure :instance))
- ;; length if fixed-length, shift amount for element size if :VECTOR
- (length nil :type (or fixnum null))))
+ :type (member :other :closure :instance :list
+ :code :vector-nil :weak-pointer))))
+
+(defun room-info-type-name (info)
+ (if (specialized-array-element-type-properties-p info)
+ (saetp-primitive-type-name info)
+ (room-info-name info)))
(eval-when (:compile-toplevel :execute)
(dolist (obj *primitive-objects*)
(let ((widetag (primitive-object-widetag obj))
(lowtag (primitive-object-lowtag obj))
- (name (primitive-object-name obj))
- (variable (primitive-object-variable-length-p obj))
- (size (primitive-object-size obj)))
- (cond
- ((not lowtag))
- (;; KLUDGE described in dan_b message "Another one for the
- ;; collection [bug 108]" (sbcl-devel 2004-01-22)
- ;;
- ;; In a freshly started SBCL 0.8.7.20ish, (TIME (ROOM T)) causes
- ;; debugger invoked on a SB-INT:BUG in thread 5911:
- ;; failed AVER: "(SAP= CURRENT END)"
- ;; [WHN: Similar things happened on one but not the other of my
- ;; machines when I just run ROOM a lot in a loop.]
- ;;
- ;; This appears to be due to my [DB] abuse of the primitive
- ;; object macros to define a thread object that shares a lowtag
- ;; with fixnums and has no widetag: it looks like the code that
- ;; generates *META-ROOM-INFO* infers from this that even fixnums
- ;; are thread-sized - probably undesirable.
- ;;
- ;; This [the fix; the EQL NAME 'THREAD clause here] is more in the
- ;; nature of a workaround than a really good fix. I'm not sure
- ;; what a really good fix is: I /think/ it's probably to remove
- ;; the :LOWTAG option in DEFINE-PRIMITIVE-OBJECT THREAD, then teach
- ;; genesis to generate the necessary OBJECT_SLOT_OFFSET macros
- ;; for assembly source in the runtime/genesis/*.h files.
- (eql name 'thread))
- ((not widetag)
- (let ((info (make-room-info :name name
- :kind :lowtag))
- (lowtag (symbol-value lowtag)))
- (declare (fixnum lowtag))
- (dotimes (i 32)
- (setf (svref *meta-room-info* (logior lowtag (ash i 3))) info))))
- (variable)
- (t
+ (name (primitive-object-name obj)))
+ (when (and (eq lowtag 'other-pointer-lowtag)
+ (not (member widetag '(t nil)))
+ (not (eq name 'weak-pointer)))
(setf (svref *meta-room-info* (symbol-value widetag))
(make-room-info :name name
- :kind :fixed
- :length size))))))
+ :kind :other)))))
(dolist (code (list #!+sb-unicode complex-character-string-widetag
complex-base-string-widetag simple-array-widetag
complex-array-widetag complex-vector-nil-widetag))
(setf (svref *meta-room-info* code)
(make-room-info :name 'array-header
- :kind :header)))
+ :kind :other)))
(setf (svref *meta-room-info* bignum-widetag)
(make-room-info :name 'bignum
- :kind :header))
+ :kind :other))
(setf (svref *meta-room-info* closure-header-widetag)
(make-room-info :name 'closure
:kind :closure))
-(dolist (stuff '((simple-bit-vector-widetag . -3)
- (simple-vector-widetag . 2)
- (simple-array-unsigned-byte-2-widetag . -2)
- (simple-array-unsigned-byte-4-widetag . -1)
- (simple-array-unsigned-byte-7-widetag . 0)
- (simple-array-unsigned-byte-8-widetag . 0)
- (simple-array-unsigned-byte-15-widetag . 1)
- (simple-array-unsigned-byte-16-widetag . 1)
- (simple-array-unsigned-byte-31-widetag . 2)
- (simple-array-unsigned-byte-32-widetag . 2)
- (simple-array-unsigned-byte-60-widetag . 3)
- (simple-array-unsigned-byte-63-widetag . 3)
- (simple-array-unsigned-byte-64-widetag . 3)
- (simple-array-signed-byte-8-widetag . 0)
- (simple-array-signed-byte-16-widetag . 1)
- (simple-array-unsigned-byte-29-widetag . 2)
- (simple-array-signed-byte-30-widetag . 2)
- (simple-array-signed-byte-32-widetag . 2)
- (simple-array-signed-byte-61-widetag . 3)
- (simple-array-signed-byte-64-widetag . 3)
- (simple-array-single-float-widetag . 2)
- (simple-array-double-float-widetag . 3)
- (simple-array-complex-single-float-widetag . 3)
- (simple-array-complex-double-float-widetag . 4)))
- (let* ((name (car stuff))
- (size (cdr stuff))
- (sname (string name)))
- (when (boundp name)
- (setf (svref *meta-room-info* (symbol-value name))
- (make-room-info :name (intern (subseq sname
- 0
- (mismatch sname "-WIDETAG"
- :from-end t)))
- :kind :vector
- :length size)))))
-
-(setf (svref *meta-room-info* simple-base-string-widetag)
- (make-room-info :name 'simple-base-string
- :kind :string
- :length 0))
-
-#!+sb-unicode
-(setf (svref *meta-room-info* simple-character-string-widetag)
- (make-room-info :name 'simple-character-string
- :kind :string
- :length 2))
+(dotimes (i (length *specialized-array-element-type-properties*))
+ (let ((saetp (aref *specialized-array-element-type-properties* i)))
+ (when (saetp-specifier saetp) ;; SIMPLE-ARRAY-NIL is a special case.
+ (setf (svref *meta-room-info* (saetp-typecode saetp)) saetp))))
(setf (svref *meta-room-info* simple-array-nil-widetag)
(make-room-info :name 'simple-array-nil
- :kind :fixed
- :length 2))
+ :kind :vector-nil))
(setf (svref *meta-room-info* code-header-widetag)
(make-room-info :name 'code
(make-room-info :name 'instance
:kind :instance))
+(setf (svref *meta-room-info* funcallable-instance-header-widetag)
+ (make-room-info :name 'funcallable-instance
+ :kind :closure))
+
+(setf (svref *meta-room-info* weak-pointer-widetag)
+ (make-room-info :name 'weak-pointer
+ :kind :weak-pointer))
+
+(let ((cons-info (make-room-info :name 'cons
+ :kind :list)))
+ ;; A cons consists of two words, both of which may be either a
+ ;; pointer or immediate data. According to the runtime this means
+ ;; either a fixnum, a character, an unbound-marker, a single-float
+ ;; on a 64-bit system, or a pointer.
+ (dotimes (i (ash 1 (- n-widetag-bits n-fixnum-tag-bits)))
+ (setf (svref *meta-room-info* (ash i n-fixnum-tag-bits)) cons-info))
+
+ (dotimes (i (ash 1 (- n-widetag-bits n-lowtag-bits)))
+ (setf (svref *meta-room-info* (logior (ash i n-lowtag-bits)
+ instance-pointer-lowtag))
+ cons-info)
+ (setf (svref *meta-room-info* (logior (ash i n-lowtag-bits)
+ list-pointer-lowtag))
+ cons-info)
+ (setf (svref *meta-room-info* (logior (ash i n-lowtag-bits)
+ fun-pointer-lowtag))
+ cons-info)
+ (setf (svref *meta-room-info* (logior (ash i n-lowtag-bits)
+ other-pointer-lowtag))
+ cons-info))
+
+ (setf (svref *meta-room-info* character-widetag) cons-info)
+
+ (setf (svref *meta-room-info* unbound-marker-widetag) cons-info)
+
+ ;; Single-floats are immediate data on 64-bit systems.
+ #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
+ (setf (svref *meta-room-info* single-float-widetag) cons-info))
+
) ; EVAL-WHEN
-(defparameter *room-info* '#.*meta-room-info*)
+(defparameter *room-info*
+ ;; SAETP instances don't dump properly from XC (or possibly
+ ;; normally), and we'd rather share structure with the master copy
+ ;; if we can anyway, so...
+ (make-array 256
+ :initial-contents
+ #.`(list
+ ,@(map 'list
+ (lambda (info)
+ (if (specialized-array-element-type-properties-p info)
+ `(aref *specialized-array-element-type-properties*
+ ,(position info *specialized-array-element-type-properties*))
+ info))
+ *meta-room-info*))))
(deftype spaces () '(member :static :dynamic :read-only))
\f
;;;; MAP-ALLOCATED-OBJECTS
(ecase space
(:static
(values (int-sap static-space-start)
- (int-sap (* *static-space-free-pointer* n-word-bytes))))
+ (int-sap (ash *static-space-free-pointer* n-fixnum-tag-bits))))
(:read-only
(values (int-sap read-only-space-start)
- (int-sap (* *read-only-space-free-pointer* n-word-bytes))))
+ (int-sap (ash *read-only-space-free-pointer* n-fixnum-tag-bits))))
(:dynamic
(values (int-sap (current-dynamic-space-start))
(dynamic-space-free-pointer)))))
(multiple-value-bind (start end) (space-bounds space)
(- (sap-int end) (sap-int start))))
-;;; Round SIZE (in bytes) up to the next dualword (eight byte) boundary.
+;;; Round SIZE (in bytes) up to the next dualword boundary. A dualword
+;;; is eight bytes on platforms with 32-bit word size and 16 bytes on
+;;; platforms with 64-bit word size.
#!-sb-fluid (declaim (inline round-to-dualword))
(defun round-to-dualword (size)
- (declare (fixnum size))
- (logand (the fixnum (+ size lowtag-mask)) (lognot lowtag-mask)))
-
-;;; Return the total size of a vector in bytes, including any pad.
-#!-sb-fluid (declaim (inline vector-total-size))
-(defun vector-total-size (obj info)
- (let ((shift (room-info-length info))
- (len (+ (length (the (simple-array * (*)) obj))
- (ecase (room-info-kind info)
- (:vector 0)
- (:string 1)))))
- (round-to-dualword
- (+ (* vector-data-offset n-word-bytes)
- (if (minusp shift)
- (ash (+ len (1- (ash 1 (- shift))))
- shift)
- (ash len shift))))))
+ (logand (the word (+ size lowtag-mask)) (lognot lowtag-mask)))
+
+;;; Return the vector OBJ, its WIDETAG, and the number of octets
+;;; required for its storage (including padding and alignment).
+(defun reconstitute-vector (obj saetp)
+ (declare (type (simple-array * (*)) obj)
+ (type specialized-array-element-type-properties saetp))
+ (let* ((length (+ (length obj)
+ (saetp-n-pad-elements saetp)))
+ (n-bits (saetp-n-bits saetp))
+ (alignment-pad (floor 7 n-bits))
+ (n-data-octets (if (>= n-bits 8)
+ (* length (ash n-bits -3))
+ (ash (* (+ length alignment-pad)
+ n-bits)
+ -3))))
+ (values obj
+ (saetp-typecode saetp)
+ (round-to-dualword (+ (* vector-data-offset n-word-bytes)
+ n-data-octets)))))
+
+;;; Given the address (untagged, aligned, and interpreted as a FIXNUM)
+;;; of a lisp object, return the object, its "type code" (either
+;;; LIST-POINTER-LOWTAG or a header widetag), and the number of octets
+;;; required for its storage (including padding and alignment). Note
+;;; that this function is designed to NOT CONS, even if called
+;;; out-of-line.
+(defun reconstitute-object (address)
+ (let* ((object-sap (int-sap (get-lisp-obj-address address)))
+ (header (sap-ref-word object-sap 0))
+ (widetag (logand header widetag-mask))
+ (header-value (ash header (- n-widetag-bits)))
+ (info (svref *room-info* widetag)))
+ (symbol-macrolet
+ ((boxed-size (round-to-dualword (ash (1+ header-value) word-shift))))
+ (macrolet
+ ((tagged-object (tag)
+ `(%make-lisp-obj (logior ,tag (get-lisp-obj-address address)))))
+ (cond
+ ;; Pick off arrays, as they're the only plausible cause for
+ ;; a non-nil, non-ROOM-INFO object as INFO.
+ ((specialized-array-element-type-properties-p info)
+ (reconstitute-vector (tagged-object other-pointer-lowtag) info))
+
+ ((null info)
+ (error "Unrecognized widetag #x~2,'0X in reconstitute-object"
+ widetag))
+
+ ((eq (room-info-kind info) :list)
+ (values (tagged-object list-pointer-lowtag)
+ list-pointer-lowtag
+ (* 2 n-word-bytes)))
+
+ ((eq (room-info-kind info) :closure)
+ (values (tagged-object fun-pointer-lowtag)
+ widetag
+ boxed-size))
+
+ ((eq (room-info-kind info) :instance)
+ (values (tagged-object instance-pointer-lowtag)
+ widetag
+ boxed-size))
+
+ ((eq (room-info-kind info) :other)
+ (values (tagged-object other-pointer-lowtag)
+ widetag
+ boxed-size))
+
+ ((eq (room-info-kind info) :vector-nil)
+ (values (tagged-object other-pointer-lowtag)
+ simple-array-nil-widetag
+ (* 2 n-word-bytes)))
+
+ ((eq (room-info-kind info) :weak-pointer)
+ (values (tagged-object other-pointer-lowtag)
+ weak-pointer-widetag
+ (round-to-dualword
+ (* weak-pointer-size
+ n-word-bytes))))
+
+ ((eq (room-info-kind info) :code)
+ (values (tagged-object other-pointer-lowtag)
+ code-header-widetag
+ (round-to-dualword
+ (* (+ header-value
+ (the fixnum
+ (sap-ref-lispobj object-sap
+ (* code-code-size-slot
+ n-word-bytes))))
+ n-word-bytes))))
+
+ (t
+ (error "Unrecognized room-info-kind ~S in reconstitute-object"
+ (room-info-kind info))))))))
+
+;;; Iterate over all the objects in the contiguous block of memory
+;;; with the low address at START and the high address just before
+;;; END, calling FUN with the object, the object's type code, and the
+;;; object's total size in bytes, including any header and padding.
+;;; START and END are untagged, aligned memory addresses interpreted
+;;; as FIXNUMs (unlike SAPs or tagged addresses, these will not cons).
+(defun map-objects-in-range (fun start end)
+ (declare (type function fun))
+ ;; If START is (unsigned) greater than END, then we have somehow
+ ;; blown past our endpoint.
+ (aver (<= (get-lisp-obj-address start)
+ (get-lisp-obj-address end)))
+ (unless (= start end)
+ (multiple-value-bind
+ (obj typecode size)
+ (reconstitute-object start)
+ (aver (zerop (logand n-lowtag-bits size)))
+ (let ((next-start
+ ;; This special little dance is to add a number of octets
+ ;; (and it had best be a number evenly divisible by our
+ ;; allocation granularity) to an unboxed, aligned address
+ ;; masquerading as a fixnum. Without consing.
+ (%make-lisp-obj
+ (mask-field (byte #.n-word-bits 0)
+ (+ (get-lisp-obj-address start)
+ size)))))
+ (funcall fun obj typecode size)
+ (map-objects-in-range fun next-start end)))))
;;; Access to the GENCGC page table for better precision in
;;; MAP-ALLOCATED-OBJECTS
(progn
(define-alien-type (struct page)
(struct page
- (start long)
+ (start signed)
;; On platforms with small enough GC pages, this field
;; will be a short. On platforms with larger ones, it'll
;; be an int.
(bytes-used (unsigned
- #.(if (typep sb!vm:gencgc-page-size
+ #.(if (typep sb!vm:gencgc-card-bytes
'(unsigned-byte 16))
16
32)))
(flags (unsigned 8))
(gen (signed 8))))
(declaim (inline find-page-index))
- (define-alien-routine "find_page_index" long (index long))
+ (define-alien-routine "find_page_index" long (index signed))
+ (define-alien-variable "last_free_page" sb!kernel::page-index-t)
+ (define-alien-variable "heap_base" (* t))
(define-alien-variable "page_table" (* (struct page))))
;;; Iterate over all the objects allocated in SPACE, calling FUN with
;;; the object, the object's type code, and the object's total size in
-;;; bytes, including any header and padding.
+;;; bytes, including any header and padding. CAREFUL makes
+;;; MAP-ALLOCATED-OBJECTS slightly more accurate, but a lot slower: it
+;;; is intended for slightly more demanding uses of heap groveling
+;;; then ROOM.
#!-sb-fluid (declaim (maybe-inline map-allocated-objects))
(defun map-allocated-objects (fun space)
- (declare (type function fun) (type spaces space))
+ (declare (type function fun)
+ (type spaces space))
(without-gcing
- (multiple-value-bind (start end) (space-bounds space)
- (declare (type system-area-pointer start end))
- (declare (optimize (speed 3)))
- (let ((current start)
- #!+gencgc (skip-tests-until-addr 0))
- (labels ((maybe-finish-mapping ()
- (unless (sap< current end)
- (aver (sap= current end))
- (return-from map-allocated-objects)))
- ;; GENCGC doesn't allocate linearly, which means that the
- ;; dynamic space can contain large blocks zeros that get
- ;; accounted as conses in ROOM (and slow down other
- ;; applications of MAP-ALLOCATED-OBJECTS). To fix this
- ;; check the GC page structure for the current address.
- ;; If the page is free or the address is beyond the page-
- ;; internal allocation offset (bytes-used) skip to the
- ;; next page immediately.
- (maybe-skip-page ()
- #!+gencgc
- (when (eq space :dynamic)
- (loop with page-mask = #.(1- sb!vm:gencgc-page-size)
- for addr of-type sb!vm:word = (sap-int current)
- while (>= addr skip-tests-until-addr)
- do
- ;; For some reason binding PAGE with LET
- ;; conses like mad (but gives no compiler notes...)
- ;; Work around the problem with SYMBOL-MACROLET
- ;; instead of trying to figure out the real
- ;; issue. -- JES, 2005-05-17
- (symbol-macrolet
- ((page (deref page-table
- (find-page-index addr))))
- ;; Don't we have any nicer way to access C struct
- ;; bitfields?
- (let ((alloc-flag (ldb (byte 3 2)
- (slot page 'flags)))
- (bytes-used (slot page 'bytes-used)))
- ;; If the page is not free and the current
- ;; pointer is still below the allocation offset
- ;; of the page
- (when (and (not (zerop alloc-flag))
- (<= (logand page-mask addr)
- bytes-used))
- ;; Don't bother testing again until we
- ;; get past that allocation offset
- (setf skip-tests-until-addr
- (+ (logandc2 addr page-mask)
- (the fixnum bytes-used)))
- ;; And then continue with the scheduled
- ;; mapping
- (return-from maybe-skip-page))
- ;; Move CURRENT to start of next page
- (setf current (int-sap (+ (logandc2 addr page-mask)
- sb!vm:gencgc-page-size)))
- (maybe-finish-mapping)))))))
- (declare (inline maybe-finish-mapping maybe-skip-page))
- (loop
- (maybe-finish-mapping)
- (maybe-skip-page)
- (let* ((header (sap-ref-word current 0))
- (header-widetag (logand header #xFF))
- (info (svref *room-info* header-widetag)))
- (cond
- ((or (not info)
- (eq (room-info-kind info) :lowtag))
- (let ((size (* cons-size n-word-bytes)))
- (funcall fun
- (make-lisp-obj (logior (sap-int current)
- list-pointer-lowtag))
- list-pointer-lowtag
- size)
- (setq current (sap+ current size))))
- ((eql header-widetag closure-header-widetag)
- (let* ((obj (make-lisp-obj (logior (sap-int current)
- fun-pointer-lowtag)))
- (size (round-to-dualword
- (* (the fixnum (1+ (get-closure-length obj)))
- n-word-bytes))))
- (funcall fun obj header-widetag size)
- (setq current (sap+ current size))))
- ((eq (room-info-kind info) :instance)
- (let* ((obj (make-lisp-obj
- (logior (sap-int current) instance-pointer-lowtag)))
- (size (round-to-dualword
- (* (+ (%instance-length obj) 1) n-word-bytes))))
- (declare (fixnum size))
- (funcall fun obj header-widetag size)
- (aver (zerop (logand size lowtag-mask)))
- (setq current (sap+ current size))))
- (t
- (let* ((obj (make-lisp-obj
- (logior (sap-int current) other-pointer-lowtag)))
- (size (ecase (room-info-kind info)
- (:fixed
- (aver (or (eql (room-info-length info)
- (1+ (get-header-data obj)))
- (floatp obj)
- (simple-array-nil-p obj)))
- (round-to-dualword
- (* (room-info-length info) n-word-bytes)))
- ((:vector :string)
- (vector-total-size obj info))
- (:header
- (round-to-dualword
- (* (1+ (get-header-data obj)) n-word-bytes)))
- (:code
- (+ (the fixnum
- (* (get-header-data obj) n-word-bytes))
- (round-to-dualword
- (* (the fixnum (%code-code-size obj))
- n-word-bytes)))))))
- (declare (fixnum size))
- (funcall fun obj header-widetag size)
- (aver (zerop (logand size lowtag-mask)))
- (setq current (sap+ current size))))))))))))
-
+ (ecase space
+ (:static
+ ;; Static space starts with NIL, which requires special
+ ;; handling, as the header and alignment are slightly off.
+ (multiple-value-bind (start end) (space-bounds space)
+ (funcall fun nil symbol-header-widetag (* 8 n-word-bytes))
+ (map-objects-in-range fun
+ (%make-lisp-obj (+ (* 8 n-word-bytes)
+ (sap-int start)))
+ (%make-lisp-obj (sap-int end)))))
+
+ ((:read-only #!-gencgc :dynamic)
+ ;; Read-only space (and dynamic space on cheneygc) is a block
+ ;; of contiguous allocations.
+ (multiple-value-bind (start end) (space-bounds space)
+ (map-objects-in-range fun
+ (%make-lisp-obj (sap-int start))
+ (%make-lisp-obj (sap-int end)))))
+
+ #!+gencgc
+ (:dynamic
+ ;; Dynamic space on gencgc requires walking the GC page tables
+ ;; in order to determine what regions contain objects.
+
+ ;; We explicitly presume that any pages in an allocation region
+ ;; that are in-use have a BYTES-USED of GENCGC-CARD-BYTES
+ ;; (indicating a full page) or an otherwise-valid BYTES-USED.
+ ;; We also presume that the pages of an open allocation region
+ ;; after the first page, and any pages that are unallocated,
+ ;; have a BYTES-USED of zero. GENCGC seems to guarantee this.
+
+ ;; Our procedure is to scan forward through the page table,
+ ;; maintaining an "end pointer" until we reach a page where
+ ;; BYTES-USED is not GENCGC-CARD-BYTES or we reach
+ ;; LAST-FREE-PAGE. We then MAP-OBJECTS-IN-RANGE if the range
+ ;; is not empty, and proceed to the next page (unless we've hit
+ ;; LAST-FREE-PAGE). We happily take advantage of the fact that
+ ;; MAP-OBJECTS-IN-RANGE will simply return if passed two
+ ;; coincident pointers for the range.
+
+ ;; FIXME: WITHOUT-GCING prevents a GC flip, but doesn't prevent
+ ;; closing allocation regions and opening new ones. This may
+ ;; prove to be an issue with concurrent systems, or with
+ ;; spectacularly poor timing for closing an allocation region
+ ;; in a single-threaded system.
+
+ (loop
+ with page-size = (ash gencgc-card-bytes (- n-fixnum-tag-bits))
+ ;; This magic dance gets us an unboxed aligned pointer as a
+ ;; FIXNUM.
+ with start = (sap-ref-lispobj (alien-sap (addr heap-base)) 0)
+ with end = start
+
+ ;; This is our page range.
+ for page-index from 0 below last-free-page
+ for next-page-addr from (+ start page-size) by page-size
+ for page-bytes-used = (slot (deref page-table page-index) 'bytes-used)
+
+ when (< page-bytes-used gencgc-card-bytes)
+ do (progn
+ (incf end (ash page-bytes-used (- n-fixnum-tag-bits)))
+ (map-objects-in-range fun start end)
+ (setf start next-page-addr)
+ (setf end next-page-addr))
+ else do (incf end page-size)
+
+ finally (map-objects-in-range fun start end))))))
\f
;;;; MEMORY-USAGE
;;; Return a list of 3-lists (bytes object type-name) for the objects
;;; allocated in Space.
(defun type-breakdown (space)
- (let ((sizes (make-array 256 :initial-element 0 :element-type 'fixnum))
- (counts (make-array 256 :initial-element 0 :element-type 'fixnum)))
+ (let ((sizes (make-array 256 :initial-element 0 :element-type '(unsigned-byte #.sb!vm:n-word-bits)))
+ (counts (make-array 256 :initial-element 0 :element-type '(unsigned-byte #.sb!vm:n-word-bits))))
(map-allocated-objects
(lambda (obj type size)
- (declare (fixnum size) (optimize (speed 3)) (ignore obj))
+ (declare (word size) (optimize (speed 3)) (ignore obj))
(incf (aref sizes type) size)
(incf (aref counts type)))
space)
(let ((total-count (aref counts i)))
(unless (zerop total-count)
(let* ((total-size (aref sizes i))
- (name (room-info-name (aref *room-info* i)))
+ (name (room-info-type-name (aref *room-info* i)))
(found (gethash name totals)))
(cond (found
(incf (first found) total-size)
(maphash (lambda (k v)
(declare (ignore k))
(let ((sum 0))
- (declare (fixnum sum))
+ (declare (unsigned-byte sum))
(dolist (space-total v)
(incf sum (first (cdr space-total))))
(summary-totals (cons sum v))))
(format t "~2&Summary of spaces: ~(~{~A ~}~)~%" spaces)
(let ((summary-total-bytes 0)
(summary-total-objects 0))
- (declare (fixnum summary-total-bytes summary-total-objects))
+ (declare (unsigned-byte summary-total-bytes summary-total-objects))
(dolist (space-totals
(mapcar #'cdr (sort (summary-totals) #'> :key #'car)))
(let ((total-objects 0)
(total-bytes 0)
name)
- (declare (fixnum total-objects total-bytes))
+ (declare (unsigned-byte total-objects total-bytes))
(collect ((spaces))
(dolist (space-total space-totals)
(let ((total (cdr space-total)))
0))
(reported-bytes 0)
(reported-objects 0))
- (declare (fixnum total-objects total-bytes cutoff-point reported-objects
- reported-bytes))
+ (declare (unsigned-byte total-objects total-bytes cutoff-point reported-objects
+ reported-bytes))
(loop for (bytes objects name) in types do
(when (<= bytes cutoff-point)
(format t " ~10:D bytes for ~9:D other object~2:*~P.~%"
(type unsigned-byte total-bytes))
(map-allocated-objects
(lambda (obj type size)
- (declare (fixnum size))
(when (eql type code-header-widetag)
- (incf total-bytes size)
(let ((words (truly-the fixnum (%code-code-size obj)))
- (sap (truly-the system-area-pointer
- (%primitive code-instructions obj))))
+ (sap (%primitive code-instructions obj))
+ (size size))
+ (declare (fixnum size))
+ (incf total-bytes size)
(incf code-words words)
(dotimes (i words)
(when (zerop (sap-ref-word sap (* i n-word-bytes)))
(declare (inline map-allocated-objects))
(map-allocated-objects
(lambda (obj type size)
- (declare (fixnum size))
(case type
(#.code-header-widetag
- (let ((inst-words (truly-the fixnum (%code-code-size obj))))
- (declare (type fixnum inst-words))
+ (let ((inst-words (truly-the fixnum (%code-code-size obj)))
+ (size size))
+ (declare (type fixnum size inst-words))
(incf non-descriptor-bytes (* inst-words n-word-bytes))
(incf descriptor-words
(- (truncate size n-word-bytes) inst-words))))
#.simple-array-unsigned-byte-32-widetag
#.simple-array-signed-byte-8-widetag
#.simple-array-signed-byte-16-widetag
- ; #.simple-array-signed-byte-30-widetag
#.simple-array-signed-byte-32-widetag
#.simple-array-single-float-widetag
#.simple-array-double-float-widetag
#.sap-widetag
#.weak-pointer-widetag
#.instance-header-widetag)
- (incf descriptor-words (truncate size n-word-bytes)))
+ (incf descriptor-words (truncate (the fixnum size) n-word-bytes)))
(t
(error "bogus widetag: ~W" type))))
space))
(let ((totals (make-hash-table :test 'eq))
(total-objects 0)
(total-bytes 0))
- (declare (fixnum total-objects total-bytes))
+ (declare (unsigned-byte total-objects total-bytes))
(map-allocated-objects
(lambda (obj type size)
- (declare (fixnum size) (optimize (speed 3)))
+ (declare (optimize (speed 3)))
(when (eql type instance-header-widetag)
(incf total-objects)
- (incf total-bytes size)
(let* ((classoid (layout-classoid (%instance-ref obj 0)))
- (found (gethash classoid totals)))
+ (found (gethash classoid totals))
+ (size size))
+ (declare (fixnum size))
+ (incf total-bytes size)
(cond (found
(incf (the fixnum (car found)))
(incf (the fixnum (cdr found)) size))
(let ((sorted (sort (totals-list) #'> :key #'cddr))
(printed-bytes 0)
(printed-objects 0))
- (declare (fixnum printed-bytes printed-objects))
+ (declare (unsigned-byte printed-bytes printed-objects))
(dolist (what (if top-n
(subseq sorted 0 (min (length sorted) top-n))
sorted))
space)
res)))
+;;; Calls FUNCTION with all object that have (possibly conservative)
+;;; references to them on current stack.
+(defun map-stack-references (function)
+ (let ((end
+ (sb!di::descriptor-sap
+ #!+stack-grows-downward-not-upward *control-stack-end*
+ #!-stack-grows-downward-not-upward *control-stack-start*))
+ (sp (current-sp))
+ (seen nil))
+ (loop until #!+stack-grows-downward-not-upward (sap> sp end)
+ #!-stack-grows-downward-not-upward (sap< sp end)
+ do (multiple-value-bind (obj ok) (make-lisp-obj (sap-ref-word sp 0) nil)
+ (when (and ok (typep obj '(not (or fixnum character))))
+ (unless (member obj seen :test #'eq)
+ (funcall function obj)
+ (push obj seen))))
+ (setf sp
+ #!+stack-grows-downward-not-upward (sap+ sp n-word-bytes)
+ #!-stack-grows-downward-not-upward (sap+ sp (- n-word-bytes))))))
+
(defun map-referencing-objects (fun space object)
(declare (type spaces space) (inline map-allocated-objects))
(unless *ignore-after*
(when (or (eq (symbol-name obj) object)
(eq (symbol-package obj) object)
(eq (symbol-plist obj) object)
- (eq (symbol-value obj) object))
+ (and (boundp obj)
+ (eq (symbol-value obj) object)))
(maybe-call fun obj)))))
space)))
projects / sbcl.git / blobdiff