1 ;;;; stuff that knows about dumping FASL files
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.
12 (in-package "SB!FASL")
13 ;;; KLUDGE: Even though we're IN-PACKAGE SB!FASL, some of the code in
14 ;;; here is awfully chummy with the SB!C package. CMU CL didn't have
15 ;;; any separation between the two packages, and a lot of tight
16 ;;; coupling remains. -- WHN 2001-06-04
18 ;;;; fasl dumper state
20 ;;; The FASL-OUTPUT structure represents everything we need to
21 ;;; know about dumping to a fasl file. (We need to objectify the
22 ;;; state because the fasdumper must be reentrant.)
23 (defstruct (fasl-output
24 #-no-ansi-print-object
25 (:print-object (lambda (x s)
26 (print-unreadable-object (x s :type t)
27 (prin1 (namestring (fasl-output-stream x))
30 ;; the stream we dump to
31 (stream (required-argument) :type stream)
32 ;; hashtables we use to keep track of dumped constants so that we
33 ;; can get them from the table rather than dumping them again. The
34 ;; EQUAL-TABLE is used for lists and strings, and the EQ-TABLE is
35 ;; used for everything else. We use a separate EQ table to avoid
36 ;; performance patholigies with objects for which EQUAL degnerates
37 ;; to EQL. Everything entered in the EQUAL table is also entered in
39 (equal-table (make-hash-table :test 'equal) :type hash-table)
40 (eq-table (make-hash-table :test 'eq) :type hash-table)
41 ;; the table's current free pointer: the next offset to be used
42 (table-free 0 :type index)
43 ;; an alist (PACKAGE . OFFSET) of the table offsets for each package
44 ;; we have currently located.
45 (packages () :type list)
46 ;; a table mapping from the Entry-Info structures for dumped XEPs to
47 ;; the table offsets of the corresponding code pointers
48 (entry-table (make-hash-table :test 'eq) :type hash-table)
49 ;; a table holding back-patching info for forward references to XEPs.
50 ;; The key is the Entry-Info structure for the XEP, and the value is
51 ;; a list of conses (<code-handle> . <offset>), where <code-handle>
52 ;; is the offset in the table of the code object needing to be
53 ;; patched, and <offset> is the offset that must be patched.
54 (patch-table (make-hash-table :test 'eq) :type hash-table)
55 ;; a list of the table handles for all of the DEBUG-INFO structures
56 ;; dumped in this file. These structures must be back-patched with
57 ;; source location information when the compilation is complete.
58 (debug-info () :type list)
59 ;; This is used to keep track of objects that we are in the process
60 ;; of dumping so that circularities can be preserved. The key is the
61 ;; object that we have previously seen, and the value is the object
62 ;; that we reference in the table to find this previously seen
63 ;; object. (The value is never NIL.)
65 ;; Except with list objects, the key and the value are always the
66 ;; same. In a list, the key will be some tail of the value.
67 (circularity-table (make-hash-table :test 'eq) :type hash-table)
68 ;; a hash table of structures that are allowed to be dumped. If we
69 ;; try to dump a structure that isn't in this hash table, we lose.
70 (valid-structures (make-hash-table :test 'eq) :type hash-table))
72 ;;; This structure holds information about a circularity.
73 (defstruct (circularity (:copier nil))
74 ;; the kind of modification to make to create circularity
75 (type (required-argument) :type (member :rplaca :rplacd :svset :struct-set))
76 ;; the object containing circularity
78 ;; index in object for circularity
79 (index (required-argument) :type index)
80 ;; the object to be stored at INDEX in OBJECT. This is that the key
81 ;; that we were using when we discovered the circularity.
83 ;; the value that was associated with VALUE in the
84 ;; CIRCULARITY-TABLE. This is the object that we look up in the
85 ;; EQ-TABLE to locate VALUE.
88 ;;; a list of the CIRCULARITY structures for all of the circularities
89 ;;; detected in the current top-level call to DUMP-OBJECT. Setting
90 ;;; this lobotomizes circularity detection as well, since circular
91 ;;; dumping uses the table.
92 (defvar *circularities-detected*)
94 ;;; used to inhibit table access when dumping forms to be read by the
96 (defvar *cold-load-dump* nil)
98 ;;; used to turn off the structure validation during dumping of source
100 (defvar *dump-only-valid-structures* t)
103 ;;; Write the byte B to the specified FASL-OUTPUT stream.
104 (defun dump-byte (b fasl-output)
105 (declare (type (unsigned-byte 8) b) (type fasl-output fasl-output))
106 (write-byte b (fasl-output-stream fasl-output)))
108 ;;; Dump a 4 byte unsigned integer.
109 (defun dump-unsigned-32 (num fasl-output)
110 (declare (type (unsigned-byte 32) num))
111 (declare (type fasl-output fasl-output))
112 (let ((stream (fasl-output-stream fasl-output)))
114 (write-byte (ldb (byte 8 (* 8 i)) num) stream))))
116 ;;; Dump NUM to the fasl stream, represented by N bytes. This works
117 ;;; for either signed or unsigned integers. There's no range checking
118 ;;; -- if you don't specify enough bytes for the number to fit, this
119 ;;; function cheerfully outputs the low bytes.
120 (defun dump-integer-as-n-bytes (num bytes fasl-output)
121 (declare (integer num) (type index bytes))
122 (declare (type fasl-output fasl-output))
123 (do ((n num (ash n -8))
126 (declare (type index i))
127 (dump-byte (logand n #xff) fasl-output))
130 ;;; Setting this variable to an (UNSIGNED-BYTE 32) value causes
131 ;;; DUMP-FOP to use it as a counter and emit a FOP-NOP4 with the
132 ;;; counter value before every ordinary fop. This can make it easier
133 ;;; to follow the progress of LOAD-AS-FASL when
134 ;;; debugging/testing/experimenting.
135 #!+sb-show (defvar *fop-nop4-count* nil)
136 #!+sb-show (declaim (type (or (unsigned-byte 32) null) *fop-nop4-count*))
138 ;;; Dump the FOP code for the named FOP to the specified FASL-OUTPUT.
140 ;;; FIXME: This should be a function, with a compiler macro expansion
141 ;;; for the common constant-FS case. (Among other things, that'll stop
142 ;;; it from EVALing ,FILE multiple times.)
144 ;;; FIXME: Compiler macros, frozen classes, inlining, and similar
145 ;;; optimizations should be conditional on #!+SB-FROZEN.
146 (defmacro dump-fop (fs file)
147 (let* ((fs (eval fs))
148 (val (get fs 'fop-code)))
152 (when *fop-nop4-count*
153 (dump-byte ,(get 'fop-nop4 'fop-code) ,file)
154 (dump-unsigned-32 (mod (incf *fop-nop4-count*) (expt 2 32)) ,file))
155 (dump-byte ',val ,file))
156 (error "compiler bug: ~S is not a legal fasload operator." fs))))
158 ;;; Dump a FOP-Code along with an integer argument, choosing the FOP
159 ;;; based on whether the argument will fit in a single byte.
161 ;;; FIXME: This, like DUMP-FOP, should be a function with a
162 ;;; compiler-macro expansion.
163 (defmacro dump-fop* (n byte-fop word-fop file)
167 (dump-fop ',byte-fop ,n-file)
168 (dump-byte ,n-n ,n-file))
170 (dump-fop ',word-fop ,n-file)
171 (dump-unsigned-32 ,n-n ,n-file)))))
173 ;;; Push the object at table offset Handle on the fasl stack.
174 (defun dump-push (handle fasl-output)
175 (declare (type index handle) (type fasl-output fasl-output))
176 (dump-fop* handle fop-byte-push fop-push fasl-output)
179 ;;; Pop the object currently on the fasl stack top into the table, and
180 ;;; return the table index, incrementing the free pointer.
181 (defun dump-pop (fasl-output)
183 (fasl-output-table-free fasl-output)
184 (dump-fop 'fop-pop fasl-output)
185 (incf (fasl-output-table-free fasl-output))))
187 ;;; If X is in File's EQUAL-TABLE, then push the object and return T,
188 ;;; otherwise NIL. If *COLD-LOAD-DUMP* is true, then do nothing and
190 (defun equal-check-table (x fasl-output)
191 (declare (type fasl-output fasl-output))
192 (unless *cold-load-dump*
193 (let ((handle (gethash x (fasl-output-equal-table fasl-output))))
195 (dump-push handle fasl-output)
200 ;;; These functions are called after dumping an object to save the
201 ;;; object in the table. The object (also passed in as X) must already
202 ;;; be on the top of the FOP stack. If *COLD-LOAD-DUMP* is true, then
203 ;;; we don't do anything.
204 (defun eq-save-object (x fasl-output)
205 (declare (type fasl-output fasl-output))
206 (unless *cold-load-dump*
207 (let ((handle (dump-pop fasl-output)))
208 (setf (gethash x (fasl-output-eq-table fasl-output)) handle)
209 (dump-push handle fasl-output)))
211 (defun equal-save-object (x fasl-output)
212 (declare (type fasl-output fasl-output))
213 (unless *cold-load-dump*
214 (let ((handle (dump-pop fasl-output)))
215 (setf (gethash x (fasl-output-equal-table fasl-output)) handle)
216 (setf (gethash x (fasl-output-eq-table fasl-output)) handle)
217 (dump-push handle fasl-output)))
220 ;;; Record X in File's CIRCULARITY-TABLE unless *COLD-LOAD-DUMP* is
221 ;;; true. This is called on objects that we are about to dump might
222 ;;; have a circular path through them.
224 ;;; The object must not currently be in this table, since the dumper
225 ;;; should never be recursively called on a circular reference.
226 ;;; Instead, the dumping function must detect the circularity and
227 ;;; arrange for the dumped object to be patched.
228 (defun note-potential-circularity (x fasl-output)
229 (unless *cold-load-dump*
230 (let ((circ (fasl-output-circularity-table fasl-output)))
231 (aver (not (gethash x circ)))
232 (setf (gethash x circ) x)))
235 ;;; Dump FORM to a fasl file so that it evaluated at load time in normal
236 ;;; load and at cold-load time in cold load. This is used to dump package
238 (defun fasl-dump-cold-load-form (form fasl-output)
239 (declare (type fasl-output fasl-output))
240 (dump-fop 'fop-normal-load fasl-output)
241 (let ((*cold-load-dump* t))
242 (dump-object form fasl-output))
243 (dump-fop 'fop-eval-for-effect fasl-output)
244 (dump-fop 'fop-maybe-cold-load fasl-output)
247 ;;;; opening and closing fasl files
249 ;;; Open a fasl file, write its header, and return a FASL-OUTPUT
250 ;;; object for dumping to it. Some human-readable information about
251 ;;; the source code is given by the string WHERE. If BYTE-P is true,
252 ;;; this file will contain no native code, and is thus largely
253 ;;; implementation independent.
254 (defun open-fasl-output (name where &optional byte-p)
255 (declare (type pathname name))
256 (let* ((stream (open name
258 :if-exists :new-version
259 :element-type 'sb!assem:assembly-unit))
260 (res (make-fasl-output :stream stream)))
262 ;; Begin the header with the constant machine-readable (and
263 ;; semi-human-readable) string which is used to identify fasl files.
264 (write-string *fasl-header-string-start-string* stream)
266 ;; The constant string which begins the header is followed by
267 ;; arbitrary human-readable text, terminated by a special
269 (with-standard-io-syntax
275 using ~A version ~A~%"
277 (format-universal-time nil (get-universal-time))
279 (sb!xc:lisp-implementation-type)
280 (sb!xc:lisp-implementation-version)))
281 (dump-byte +fasl-header-string-stop-char-code+ res)
283 ;; Finish the header by outputting fasl file implementation and
284 ;; version in machine-readable form.
285 (let ((implementation (if byte-p
286 (backend-byte-fasl-file-implementation)
287 +backend-fasl-file-implementation+)))
288 (dump-unsigned-32 (length (symbol-name implementation)) res)
289 (dotimes (i (length (symbol-name implementation)))
290 (dump-byte (char-code (aref (symbol-name implementation) i)) res)))
291 (dump-unsigned-32 +fasl-file-version+ res)
295 ;;; Close the specified FASL-OUTPUT, aborting the write if ABORT-P.
296 (defun close-fasl-output (fasl-output abort-p)
297 (declare (type fasl-output fasl-output))
300 (aver (zerop (hash-table-count (fasl-output-patch-table fasl-output))))
303 (dump-fop 'fop-verify-empty-stack fasl-output)
304 (dump-fop 'fop-verify-table-size fasl-output)
305 (dump-unsigned-32 (fasl-output-table-free fasl-output)
307 (dump-fop 'fop-end-group fasl-output)
309 ;; That's all, folks.
310 (close (fasl-output-stream fasl-output) :abort abort-p)
313 ;;;; main entries to object dumping
315 ;;; This function deals with dumping objects that are complex enough
316 ;;; so that we want to cache them in the table, rather than repeatedly
317 ;;; dumping them. If the object is in the EQ-TABLE, then we push it,
318 ;;; otherwise, we do a type dispatch to a type specific dumping
319 ;;; function. The type specific branches do any appropriate
320 ;;; EQUAL-TABLE check and table entry.
322 ;;; When we go to dump the object, we enter it in the CIRCULARITY-TABLE.
323 (defun dump-non-immediate-object (x file)
324 (let ((index (gethash x (fasl-output-eq-table file))))
325 (cond ((and index (not *cold-load-dump*))
326 (dump-push index file))
329 (symbol (dump-symbol x file))
331 ;; KLUDGE: The code in this case has been hacked
332 ;; to match Douglas Crosher's quick fix to CMU CL
333 ;; (on cmucl-imp 1999-12-27), applied in sbcl-0.6.8.11
334 ;; with help from Martin Atzmueller. This is not an
335 ;; ideal solution; to quote DTC,
336 ;; The compiler locks up trying to coalesce the
337 ;; constant lists. The hack below will disable the
338 ;; coalescing of lists while dumping and allows
339 ;; the code to compile. The real fix would be to
340 ;; take a little more care while dumping these.
341 ;; So if better list coalescing is needed, start here.
343 (if (circular-list-p x)
346 (eq-save-object x file))
347 (unless (equal-check-table x file)
349 (equal-save-object x file))))
352 (eq-save-object x file))
354 (dump-structure x file)
355 (eq-save-object x file))
357 ;; FIXME: The comment at the head of
358 ;; DUMP-NON-IMMEDIATE-OBJECT says it's for objects which
359 ;; we want to save, instead of repeatedly dumping them.
360 ;; But then we dump arrays here without doing anything
361 ;; like EQUAL-SAVE-OBJECT. What gives?
364 (unless (equal-check-table x file)
366 (ratio (dump-ratio x file))
367 (complex (dump-complex x file))
368 (float (dump-float x file))
369 (integer (dump-integer x file)))
370 (equal-save-object x file)))
372 ;; This probably never happens, since bad things tend to
373 ;; be detected during IR1 conversion.
374 (error "This object cannot be dumped into a fasl file:~% ~S"
378 ;;; Dump an object of any type by dispatching to the correct
379 ;;; type-specific dumping function. We pick off immediate objects,
380 ;;; symbols and and magic lists here. Other objects are handled by
381 ;;; DUMP-NON-IMMEDIATE-OBJECT.
383 ;;; This is the function used for recursive calls to the fasl dumper.
384 ;;; We don't worry about creating circularities here, since it is
385 ;;; assumed that there is a top-level call to DUMP-OBJECT.
386 (defun sub-dump-object (x file)
389 (dump-non-immediate-object x file)
390 (dump-fop 'fop-empty-list file)))
393 (dump-fop 'fop-truth file)
394 (dump-non-immediate-object x file)))
395 ((fixnump x) (dump-integer x file))
396 ((characterp x) (dump-character x file))
398 (dump-non-immediate-object x file))))
400 ;;; Dump stuff to backpatch already dumped objects. INFOS is the list
401 ;;; of CIRCULARITY structures describing what to do. The patching FOPs
402 ;;; take the value to store on the stack. We compute this value by
403 ;;; fetching the enclosing object from the table, and then CDR'ing it
405 (defun dump-circularities (infos file)
406 (let ((table (fasl-output-eq-table file)))
409 (let* ((value (circularity-value info))
410 (enclosing (circularity-enclosing-object info)))
411 (dump-push (gethash enclosing table) file)
412 (unless (eq enclosing value)
413 (do ((current enclosing (cdr current))
416 (dump-fop 'fop-nthcdr file)
417 (dump-unsigned-32 i file))
418 (declare (type index i)))))
420 (ecase (circularity-type info)
421 (:rplaca (dump-fop 'fop-rplaca file))
422 (:rplacd (dump-fop 'fop-rplacd file))
423 (:svset (dump-fop 'fop-svset file))
424 (:struct-set (dump-fop 'fop-structset file)))
425 (dump-unsigned-32 (gethash (circularity-object info) table) file)
426 (dump-unsigned-32 (circularity-index info) file))))
428 ;;; Set up stuff for circularity detection, then dump an object. All
429 ;;; shared and circular structure will be exactly preserved within a
430 ;;; single call to DUMP-OBJECT. Sharing between objects dumped by
431 ;;; separate calls is only preserved when convenient.
433 ;;; We peek at the object type so that we only pay the circular
434 ;;; detection overhead on types of objects that might be circular.
435 (defun dump-object (x file)
436 (if (or (array-header-p x)
440 (let ((*circularities-detected* ())
441 (circ (fasl-output-circularity-table file)))
443 (sub-dump-object x file)
444 (when *circularities-detected*
445 (dump-circularities *circularities-detected* file)
447 (sub-dump-object x file)))
449 ;;;; LOAD-TIME-VALUE and MAKE-LOAD-FORM support
451 ;;; Emit a funcall of the function and return the handle for the
453 (defun fasl-dump-load-time-value-lambda (fun file)
454 (declare (type sb!c::clambda fun) (type fasl-output file))
455 (let ((handle (gethash (sb!c::leaf-info fun)
456 (fasl-output-entry-table file))))
458 (dump-push handle file)
459 (dump-fop 'fop-funcall file)
463 ;;; Return T iff CONSTANT has not already been dumped. It's been
464 ;;; dumped if it's in the EQ table.
465 (defun fasl-constant-already-dumped-p (constant file)
466 (if (or (gethash constant (fasl-output-eq-table file))
467 (gethash constant (fasl-output-valid-structures file)))
471 ;;; Use HANDLE whenever we try to dump CONSTANT. HANDLE should have been
472 ;;; returned earlier by FASL-DUMP-LOAD-TIME-VALUE-LAMBDA.
473 (defun fasl-note-handle-for-constant (constant handle file)
474 (let ((table (fasl-output-eq-table file)))
475 (when (gethash constant table)
476 (error "~S already dumped?" constant))
477 (setf (gethash constant table) handle))
480 ;;; Note that the specified structure can just be dumped by
481 ;;; enumerating the slots.
482 (defun fasl-validate-structure (structure file)
483 (setf (gethash structure (fasl-output-valid-structures file)) t)
489 (defun dump-ratio (x file)
490 (sub-dump-object (numerator x) file)
491 (sub-dump-object (denominator x) file)
492 (dump-fop 'fop-ratio file))
495 (defun dump-integer (n file)
498 (dump-fop 'fop-byte-integer file)
499 (dump-byte (logand #xFF n) file))
501 (dump-fop 'fop-word-integer file)
502 (dump-unsigned-32 n file))
504 (dump-fop 'fop-word-integer file)
505 (dump-integer-as-n-bytes n 4 file))
507 (let ((bytes (ceiling (1+ (integer-length n)) 8)))
508 (dump-fop* bytes fop-small-integer fop-integer file)
509 (dump-integer-as-n-bytes n bytes file)))))
511 (defun dump-float (x file)
514 (dump-fop 'fop-single-float file)
515 (dump-integer-as-n-bytes (single-float-bits x) 4 file))
517 (dump-fop 'fop-double-float file)
519 (declare (double-float x))
520 ;; FIXME: Why sometimes DUMP-UNSIGNED-32 and sometimes
521 ;; DUMP-INTEGER-AS-N-BYTES .. 4?
522 (dump-unsigned-32 (double-float-low-bits x) file)
523 (dump-integer-as-n-bytes (double-float-high-bits x) 4 file)))
526 (dump-fop 'fop-long-float file)
527 (dump-long-float x file))))
529 (defun dump-complex (x file)
532 ((complex single-float)
533 (dump-fop 'fop-complex-single-float file)
534 (dump-integer-as-n-bytes (single-float-bits (realpart x)) 4 file)
535 (dump-integer-as-n-bytes (single-float-bits (imagpart x)) 4 file))
537 ((complex double-float)
538 (dump-fop 'fop-complex-double-float file)
539 (let ((re (realpart x)))
540 (declare (double-float re))
541 (dump-unsigned-32 (double-float-low-bits re) file)
542 (dump-integer-as-n-bytes (double-float-high-bits re) 4 file))
543 (let ((im (imagpart x)))
544 (declare (double-float im))
545 (dump-unsigned-32 (double-float-low-bits im) file)
546 (dump-integer-as-n-bytes (double-float-high-bits im) 4 file)))
548 ((complex long-float)
549 ;; (There's no easy way to mix #!+LONG-FLOAT and #-SB-XC-HOST
550 ;; conditionalization at read time, so we do this SB-XC-HOST
551 ;; conditional at runtime instead.)
552 #+sb-xc-host (error "can't dump COMPLEX-LONG-FLOAT in cross-compiler")
553 (dump-fop 'fop-complex-long-float file)
554 (dump-long-float (realpart x) file)
555 (dump-long-float (imagpart x) file))
557 (sub-dump-object (realpart x) file)
558 (sub-dump-object (imagpart x) file)
559 (dump-fop 'fop-complex file))))
563 ;;; Return the table index of PKG, adding the package to the table if
564 ;;; necessary. During cold load, we read the string as a normal string
565 ;;; so that we can do the package lookup at cold load time.
567 ;;; FIXME: Despite the parallelism in names, the functionality of
568 ;;; this function is not parallel to other functions DUMP-FOO, e.g.
569 ;;; DUMP-SYMBOL and DUMP-LIST. The mapping between names and behavior
570 ;;; should be made more consistent.
571 (defun dump-package (pkg file)
572 (declare (type package pkg) (type fasl-output file))
573 (declare (values index))
574 (declare (inline assoc))
575 (cond ((cdr (assoc pkg (fasl-output-packages file) :test #'eq)))
577 (unless *cold-load-dump*
578 (dump-fop 'fop-normal-load file))
579 (dump-simple-string (package-name pkg) file)
580 (dump-fop 'fop-package file)
581 (unless *cold-load-dump*
582 (dump-fop 'fop-maybe-cold-load file))
583 (let ((entry (dump-pop file)))
584 (push (cons pkg entry) (fasl-output-packages file))
589 ;;; Dump a list, setting up patching information when there are
590 ;;; circularities. We scan down the list, checking for CDR and CAR
593 ;;; If there is a CDR circularity, we terminate the list with NIL and
594 ;;; make a CIRCULARITY notation for the CDR of the previous cons.
596 ;;; If there is no CDR circularity, then we mark the current cons and
597 ;;; check for a CAR circularity. When there is a CAR circularity, we
598 ;;; make the CAR NIL initially, arranging for the current cons to be
601 ;;; Otherwise, we recursively call the dumper to dump the current
604 ;;; Marking of the conses is inhibited when *COLD-LOAD-DUMP* is true.
605 ;;; This inhibits all circularity detection.
606 (defun dump-list (list file)
608 (not (gethash list (fasl-output-circularity-table file)))))
609 (do* ((l list (cdr l))
611 (circ (fasl-output-circularity-table file)))
614 (terminate-undotted-list n file))
616 (sub-dump-object l file)
617 (terminate-dotted-list n file))))
618 (declare (type index n))
619 (let ((ref (gethash l circ)))
621 (push (make-circularity :type :rplacd
625 :enclosing-object ref)
626 *circularities-detected*)
627 (terminate-undotted-list n file)
630 (unless *cold-load-dump*
631 (setf (gethash l circ) list))
634 (ref (gethash obj circ)))
636 (push (make-circularity :type :rplaca
640 :enclosing-object ref)
641 *circularities-detected*)
642 (sub-dump-object nil file))
644 (sub-dump-object obj file))))))
646 (defun terminate-dotted-list (n file)
647 (declare (type index n) (type fasl-output file))
649 (1 (dump-fop 'fop-list*-1 file))
650 (2 (dump-fop 'fop-list*-2 file))
651 (3 (dump-fop 'fop-list*-3 file))
652 (4 (dump-fop 'fop-list*-4 file))
653 (5 (dump-fop 'fop-list*-5 file))
654 (6 (dump-fop 'fop-list*-6 file))
655 (7 (dump-fop 'fop-list*-7 file))
656 (8 (dump-fop 'fop-list*-8 file))
657 (T (do ((nn n (- nn 255)))
659 (dump-fop 'fop-list* file)
661 (declare (type index nn))
662 (dump-fop 'fop-list* file)
663 (dump-byte 255 file)))))
665 ;;; If N > 255, must build list with one LIST operator, then LIST*
668 (defun terminate-undotted-list (n file)
669 (declare (type index n) (type fasl-output file))
671 (1 (dump-fop 'fop-list-1 file))
672 (2 (dump-fop 'fop-list-2 file))
673 (3 (dump-fop 'fop-list-3 file))
674 (4 (dump-fop 'fop-list-4 file))
675 (5 (dump-fop 'fop-list-5 file))
676 (6 (dump-fop 'fop-list-6 file))
677 (7 (dump-fop 'fop-list-7 file))
678 (8 (dump-fop 'fop-list-8 file))
680 (dump-fop 'fop-list file)
682 (t (dump-fop 'fop-list file)
684 (do ((nn (- n 255) (- nn 255)))
686 (dump-fop 'fop-list* file)
688 (declare (type index nn))
689 (dump-fop 'fop-list* file)
690 (dump-byte 255 file)))))))
694 ;;; Dump the array thing.
695 (defun dump-array (x file)
698 (dump-multi-dim-array x file)))
700 ;;; Dump the vector object. If it's not simple, then actually dump a
701 ;;; simple version of it. But we enter the original in the EQ or EQUAL
703 (defun dump-vector (x file)
704 (let ((simple-version (if (array-header-p x)
705 (coerce x 'simple-array)
707 (typecase simple-version
709 (unless (equal-check-table x file)
710 (dump-simple-string simple-version file)
711 (equal-save-object x file)))
713 (dump-simple-vector simple-version file)
714 (eq-save-object x file))
715 ((simple-array single-float (*))
716 (dump-single-float-vector simple-version file)
717 (eq-save-object x file))
718 ((simple-array double-float (*))
719 (dump-double-float-vector simple-version file)
720 (eq-save-object x file))
722 ((simple-array long-float (*))
723 (dump-long-float-vector simple-version file)
724 (eq-save-object x file))
725 ((simple-array (complex single-float) (*))
726 (dump-complex-single-float-vector simple-version file)
727 (eq-save-object x file))
728 ((simple-array (complex double-float) (*))
729 (dump-complex-double-float-vector simple-version file)
730 (eq-save-object x file))
732 ((simple-array (complex long-float) (*))
733 (dump-complex-long-float-vector simple-version file)
734 (eq-save-object x file))
736 (dump-i-vector simple-version file)
737 (eq-save-object x file)))))
739 ;;; Dump a SIMPLE-VECTOR, handling any circularities.
740 (defun dump-simple-vector (v file)
741 (declare (type simple-vector v) (type fasl-output file))
742 (note-potential-circularity v file)
743 (do ((index 0 (1+ index))
745 (circ (fasl-output-circularity-table file)))
747 (dump-fop* length fop-small-vector fop-vector file))
748 (let* ((obj (aref v index))
749 (ref (gethash obj circ)))
751 (push (make-circularity :type :svset
755 :enclosing-object ref)
756 *circularities-detected*)
757 (sub-dump-object nil file))
759 (sub-dump-object obj file))))))
761 (defun dump-i-vector (vec file &key data-only)
762 (declare (type (simple-array * (*)) vec))
763 (let ((len (length vec)))
764 (labels ((dump-unsigned-vector (size bytes)
766 (dump-fop 'fop-int-vector file)
767 (dump-unsigned-32 len file)
768 (dump-byte size file))
769 ;; The case which is easy to handle in a portable way is when
770 ;; the element size is a multiple of the output byte size, and
771 ;; happily that's the only case we need to be portable. (The
772 ;; cross-compiler has to output debug information (including
773 ;; (SIMPLE-ARRAY (UNSIGNED-BYTE 8) *).) The other cases are only
774 ;; needed in the target SBCL, so we let them be handled with
775 ;; unportable bit bashing.
776 (cond ((>= size 8) ; easy cases
777 (multiple-value-bind (floor rem) (floor size 8)
780 (dump-integer-as-n-bytes i floor file))))
781 (t ; harder cases, not supported in cross-compiler
782 (dump-raw-bytes vec bytes file))))
783 (dump-signed-vector (size bytes)
784 ;; Note: Dumping specialized signed vectors isn't
785 ;; supported in the cross-compiler. (All cases here end
786 ;; up trying to call DUMP-RAW-BYTES, which isn't
787 ;; provided in the cross-compilation host, only on the
790 (dump-fop 'fop-signed-int-vector file)
791 (dump-unsigned-32 len file)
792 (dump-byte size file))
793 (dump-raw-bytes vec bytes file)))
795 ;; KLUDGE: What exactly does the (ASH .. -3) stuff do? -- WHN 19990902
797 (dump-unsigned-vector 1 (ash (+ (the index len) 7) -3)))
798 ((simple-array (unsigned-byte 2) (*))
799 (dump-unsigned-vector 2 (ash (+ (the index (ash len 1)) 7) -3)))
800 ((simple-array (unsigned-byte 4) (*))
801 (dump-unsigned-vector 4 (ash (+ (the index (ash len 2)) 7) -3)))
802 ((simple-array (unsigned-byte 8) (*))
803 (dump-unsigned-vector 8 len))
804 ((simple-array (unsigned-byte 16) (*))
805 (dump-unsigned-vector 16 (* 2 len)))
806 ((simple-array (unsigned-byte 32) (*))
807 (dump-unsigned-vector 32 (* 4 len)))
808 ((simple-array (signed-byte 8) (*))
809 (dump-signed-vector 8 len))
810 ((simple-array (signed-byte 16) (*))
811 (dump-signed-vector 16 (* 2 len)))
812 ((simple-array (signed-byte 30) (*))
813 (dump-signed-vector 30 (* 4 len)))
814 ((simple-array (signed-byte 32) (*))
815 (dump-signed-vector 32 (* 4 len)))))))
817 ;;; Dump characters and string-ish things.
819 (defun dump-character (ch file)
820 (dump-fop 'fop-short-character file)
821 (dump-byte (char-code ch) file))
823 ;;; a helper function shared by DUMP-SIMPLE-STRING and DUMP-SYMBOL
824 (defun dump-characters-of-string (s fasl-output)
825 (declare (type string s) (type fasl-output fasl-output))
827 (dump-byte (char-code c) fasl-output))
830 ;;; Dump a SIMPLE-BASE-STRING.
831 ;;; FIXME: should be called DUMP-SIMPLE-BASE-STRING then
832 (defun dump-simple-string (s file)
833 (declare (type simple-base-string s))
834 (dump-fop* (length s) fop-small-string fop-string file)
835 (dump-characters-of-string s file)
838 ;;; If we get here, it is assumed that the symbol isn't in the table,
839 ;;; but we are responsible for putting it there when appropriate. To
840 ;;; avoid too much special-casing, we always push the symbol in the
841 ;;; table, but don't record that we have done so if *COLD-LOAD-DUMP*
843 (defun dump-symbol (s file)
844 (declare (type fasl-output file))
845 (let* ((pname (symbol-name s))
846 (pname-length (length pname))
847 (pkg (symbol-package s)))
850 (dump-fop* pname-length
851 fop-uninterned-small-symbol-save
852 fop-uninterned-symbol-save
854 ;; CMU CL had FOP-SYMBOL-SAVE/FOP-SMALL-SYMBOL-SAVE fops which
855 ;; used the current value of *PACKAGE*. Unfortunately that's
856 ;; broken w.r.t. ANSI Common Lisp semantics, so those are gone
858 ;;((eq pkg *package*)
859 ;; (dump-fop* pname-length
860 ;; fop-small-symbol-save
861 ;; fop-symbol-save file))
862 ((eq pkg sb!int:*cl-package*)
863 (dump-fop* pname-length
864 fop-lisp-small-symbol-save
867 ((eq pkg sb!int:*keyword-package*)
868 (dump-fop* pname-length
869 fop-keyword-small-symbol-save
870 fop-keyword-symbol-save
872 ((< pname-length 256)
873 (dump-fop* (dump-package pkg file)
874 fop-small-symbol-in-byte-package-save
875 fop-small-symbol-in-package-save
877 (dump-byte pname-length file))
879 (dump-fop* (dump-package pkg file)
880 fop-symbol-in-byte-package-save
881 fop-symbol-in-package-save
883 (dump-unsigned-32 pname-length file)))
885 (dump-characters-of-string pname file)
887 (unless *cold-load-dump*
888 (setf (gethash s (fasl-output-eq-table file))
889 (fasl-output-table-free file)))
891 (incf (fasl-output-table-free file)))
895 ;;;; component (function) dumping
897 (defun dump-segment (segment code-length fasl-output)
898 (declare (type sb!assem:segment segment)
899 (type fasl-output fasl-output))
900 (let* ((stream (fasl-output-stream fasl-output))
901 (nwritten (write-segment-contents segment stream)))
902 ;; In CMU CL there was no enforced connection between the CODE-LENGTH
903 ;; argument and the number of bytes actually written. I added this
904 ;; assertion while trying to debug portable genesis. -- WHN 19990902
905 (unless (= code-length nwritten)
906 (error "internal error, code-length=~D, nwritten=~D"
911 ;;; Dump all the fixups. Currently there are three flavors of fixup:
912 ;;; - assembly routines: named by a symbol
913 ;;; - foreign (C) symbols: named by a string
914 ;;; - code object references: don't need a name.
915 (defun dump-fixups (fixups fasl-output)
916 (declare (list fixups) (type fasl-output fasl-output))
917 (dolist (info fixups)
918 ;; FIXME: Packing data with LIST in NOTE-FIXUP and unpacking them
919 ;; with FIRST, SECOND, and THIRD here is hard to follow and
920 ;; maintain. Perhaps we could define a FIXUP-INFO structure to use
921 ;; instead, and rename *FIXUPS* to *FIXUP-INFO-LIST*?
922 (let* ((kind (first info))
923 (fixup (second info))
924 (name (fixup-name fixup))
925 (flavor (fixup-flavor fixup))
926 (offset (third info)))
927 ;; FIXME: This OFFSET is not what's called OFFSET in the FIXUP
928 ;; structure, it's what's called POSN in NOTE-FIXUP. (As far as
929 ;; I can tell, FIXUP-OFFSET is not actually an offset, it's an
930 ;; internal label used instead of NAME for :CODE-OBJECT fixups.
931 ;; Notice that in the :CODE-OBJECT case, NAME is ignored.)
932 (dump-fop 'fop-normal-load fasl-output)
933 (let ((*cold-load-dump* t))
934 (dump-object kind fasl-output))
935 (dump-fop 'fop-maybe-cold-load fasl-output)
936 ;; Depending on the flavor, we may have various kinds of
937 ;; noise before the offset.
940 (aver (symbolp name))
941 (dump-fop 'fop-normal-load fasl-output)
942 (let ((*cold-load-dump* t))
943 (dump-object name fasl-output))
944 (dump-fop 'fop-maybe-cold-load fasl-output)
945 (dump-fop 'fop-assembler-fixup fasl-output))
947 (aver (stringp name))
948 (dump-fop 'fop-foreign-fixup fasl-output)
949 (let ((len (length name)))
950 (aver (< len 256)) ; (limit imposed by fop definition)
951 (dump-byte len fasl-output)
953 (dump-byte (char-code (schar name i)) fasl-output))))
956 (dump-fop 'fop-code-object-fixup fasl-output)))
957 ;; No matter what the flavor, we'll always dump the offset.
958 (dump-unsigned-32 offset fasl-output)))
961 ;;; Dump out the constant pool and code-vector for component, push the
962 ;;; result in the table, and return the offset.
964 ;;; The only tricky thing is handling constant-pool references to
965 ;;; functions. If we have already dumped the function, then we just
966 ;;; push the code pointer. Otherwise, we must create back-patching
967 ;;; information so that the constant will be set when the function is
968 ;;; eventually dumped. This is a bit awkward, since we don't have the
969 ;;; handle for the code object being dumped while we are dumping its
972 ;;; We dump trap objects in any unused slots or forward referenced slots.
973 (defun dump-code-object (component
980 (declare (type component component)
981 (list trace-table-as-list)
982 (type index code-length)
983 (type fasl-output fasl-output))
985 (let* ((2comp (component-info component))
986 (constants (sb!c::ir2-component-constants 2comp))
987 (header-length (length constants))
988 (packed-trace-table (pack-trace-table trace-table-as-list))
989 (total-length (+ code-length
990 (* (length packed-trace-table)
991 sb!c::tt-bytes-per-entry))))
995 ;; Dump the offset of the trace table.
996 (dump-object code-length fasl-output)
997 ;; FIXME: As long as we don't have GENGC, the trace table is
998 ;; hardwired to be empty. So we might be able to get rid of
999 ;; trace tables? However, we should probably wait for the first
1000 ;; port to a system where CMU CL uses GENGC to see whether GENGC
1001 ;; is really gone. (I.e. maybe other non-X86 ports will want to
1002 ;; use it, just as in CMU CL.)
1004 ;; Dump the constants, noting any :entries that have to be fixed up.
1005 (do ((i sb!vm:code-constants-offset (1+ i)))
1006 ((>= i header-length))
1007 (let ((entry (aref constants i)))
1010 (dump-object (sb!c::constant-value entry) fasl-output))
1014 (let* ((info (sb!c::leaf-info (cdr entry)))
1015 (handle (gethash info
1016 (fasl-output-entry-table
1020 (dump-push handle fasl-output))
1022 (patches (cons info i))
1023 (dump-fop 'fop-misc-trap fasl-output)))))
1025 (dump-push (cdr entry) fasl-output))
1027 (dump-object (cdr entry) fasl-output)
1028 (dump-fop 'fop-fdefinition fasl-output))))
1030 (dump-fop 'fop-misc-trap fasl-output)))))
1032 ;; Dump the debug info.
1033 (let ((info (sb!c::debug-info-for-component component))
1034 (*dump-only-valid-structures* nil))
1035 (dump-object info fasl-output)
1036 (let ((info-handle (dump-pop fasl-output)))
1037 (dump-push info-handle fasl-output)
1038 (push info-handle (fasl-output-debug-info fasl-output))))
1040 (let ((num-consts (- header-length sb!vm:code-trace-table-offset-slot)))
1041 (cond ((and (< num-consts #x100) (< total-length #x10000))
1042 (dump-fop 'fop-small-code fasl-output)
1043 (dump-byte num-consts fasl-output)
1044 (dump-integer-as-n-bytes total-length 2 fasl-output))
1046 (dump-fop 'fop-code fasl-output)
1047 (dump-unsigned-32 num-consts fasl-output)
1048 (dump-unsigned-32 total-length fasl-output))))
1050 ;; These two dumps are only ones which contribute to our
1051 ;; TOTAL-LENGTH value.
1052 (dump-segment code-segment code-length fasl-output)
1053 (dump-i-vector packed-trace-table fasl-output :data-only t)
1055 ;; DUMP-FIXUPS does its own internal DUMP-FOPs: the bytes it
1056 ;; dumps aren't included in the TOTAL-LENGTH passed to our
1057 ;; FOP-CODE/FOP-SMALL-CODE fop.
1058 (dump-fixups fixups fasl-output)
1060 (dump-fop 'fop-sanctify-for-execution fasl-output)
1061 (let ((handle (dump-pop fasl-output)))
1062 (dolist (patch (patches))
1063 (push (cons handle (cdr patch))
1064 (gethash (car patch)
1065 (fasl-output-patch-table fasl-output))))
1068 (defun dump-assembler-routines (code-segment length fixups routines file)
1069 (dump-fop 'fop-assembler-code file)
1070 (dump-unsigned-32 #!+gengc (ceiling length 4)
1073 (write-segment-contents code-segment (fasl-output-stream file))
1074 (dolist (routine routines)
1075 (dump-fop 'fop-normal-load file)
1076 (let ((*cold-load-dump* t))
1077 (dump-object (car routine) file))
1078 (dump-fop 'fop-maybe-cold-load file)
1079 (dump-fop 'fop-assembler-routine file)
1080 (dump-unsigned-32 (label-position (cdr routine)) file))
1081 (dump-fixups fixups file)
1082 (dump-fop 'fop-sanctify-for-execution file)
1085 ;;; Dump a function-entry data structure corresponding to ENTRY to
1086 ;;; FILE. CODE-HANDLE is the table offset of the code object for the
1088 (defun dump-one-entry (entry code-handle file)
1089 (declare (type sb!c::entry-info entry) (type index code-handle)
1090 (type fasl-output file))
1091 (let ((name (sb!c::entry-info-name entry)))
1092 (dump-push code-handle file)
1093 (dump-object name file)
1094 (dump-object (sb!c::entry-info-arguments entry) file)
1095 (dump-object (sb!c::entry-info-type entry) file)
1096 (dump-fop 'fop-function-entry file)
1097 (dump-unsigned-32 (label-position (sb!c::entry-info-offset entry)) file)
1100 ;;; Alter the code object referenced by CODE-HANDLE at the specified
1101 ;;; OFFSET, storing the object referenced by ENTRY-HANDLE.
1102 (defun dump-alter-code-object (code-handle offset entry-handle file)
1103 (declare (type index code-handle entry-handle offset))
1104 (declare (type fasl-output file))
1105 (dump-push code-handle file)
1106 (dump-push entry-handle file)
1107 (dump-fop* offset fop-byte-alter-code fop-alter-code file)
1110 ;;; Dump the code, constants, etc. for component. We pass in the
1111 ;;; assembler fixups, code vector and node info.
1112 (defun fasl-dump-component (component
1118 (declare (type component component) (list trace-table))
1119 (declare (type fasl-output file))
1121 (dump-fop 'fop-verify-empty-stack file)
1122 (dump-fop 'fop-verify-table-size file)
1123 (dump-unsigned-32 (fasl-output-table-free file) file)
1126 (let ((info (sb!c::ir2-component-dyncount-info (component-info component))))
1128 (fasl-validate-structure info file)))
1130 (let ((code-handle (dump-code-object component
1136 (2comp (component-info component)))
1137 (dump-fop 'fop-verify-empty-stack file)
1139 (dolist (entry (sb!c::ir2-component-entries 2comp))
1140 (let ((entry-handle (dump-one-entry entry code-handle file)))
1141 (setf (gethash entry (fasl-output-entry-table file)) entry-handle)
1143 (let ((old (gethash entry (fasl-output-patch-table file))))
1144 ;; FIXME: All this code is shared with
1145 ;; FASL-DUMP-BYTE-COMPONENT, and should probably be gathered
1146 ;; up into a named function (DUMP-PATCHES?) called from both
1150 (dump-alter-code-object (car patch)
1154 (remhash entry (fasl-output-patch-table file)))))))
1157 (defun dump-byte-code-object (segment code-length constants file)
1158 (declare (type sb!assem:segment segment)
1159 (type index code-length)
1160 (type vector constants)
1161 (type fasl-output file))
1162 (collect ((entry-patches))
1164 ;; Dump the debug info.
1166 (let ((info (sb!c::make-debug-info
1167 :name (sb!c::component-name *component-being-compiled*)))
1168 (*dump-only-valid-structures* nil))
1169 (dump-object info file)
1170 (let ((info-handle (dump-pop file)))
1171 (dump-push info-handle file)
1172 (push info-handle (fasl-output-debug-info file))))
1174 ;; The "trace table" is initialized by loader to hold a list of
1175 ;; all byte functions in this code object (for debug info.)
1176 (dump-object nil file)
1178 ;; Dump the constants.
1180 ;; FIXME: There's a family resemblance between this and the
1181 ;; corresponding code in DUMP-CODE-OBJECT. Could some be shared?
1182 (dotimes (i (length constants))
1183 (let ((entry (aref constants i)))
1186 (dump-object (sb!c::constant-value entry) file))
1188 (dump-fop 'fop-misc-trap file))
1192 (let* ((info (sb!c::leaf-info (cdr entry)))
1193 (handle (gethash info
1194 (fasl-output-entry-table file))))
1197 (dump-push handle file))
1199 (entry-patches (cons info
1200 (+ i sb!vm:code-constants-offset)))
1201 (dump-fop 'fop-misc-trap file)))))
1203 (dump-push (cdr entry) file))
1205 (dump-object (cdr entry) file)
1206 (dump-fop 'fop-fdefinition file))
1208 (dump-object 'load-type-predicate file)
1209 (let ((*unparse-function-type-simplify* t))
1210 (dump-object (type-specifier (cdr entry)) file))
1211 (dump-fop 'fop-funcall file)
1212 (dump-byte 1 file)))))))
1214 ;; Dump the debug info.
1216 (let ((info (sb!c::make-debug-info :name
1217 (sb!c::component-name
1218 *component-being-compiled*)))
1219 (*dump-only-valid-structures* nil))
1220 (dump-object info file)
1221 (let ((info-handle (dump-pop file)))
1222 (dump-push info-handle file)
1223 (push info-handle (fasl-output-debug-info file))))
1225 (let ((num-consts #!+gengc (+ (length constants) 2)
1226 #!-gengc (1+ (length constants)))
1227 (code-length #!+gengc (ceiling code-length 4)
1228 #!-gengc code-length))
1229 (cond ((and (< num-consts #x100) (< code-length #x10000))
1230 (dump-fop 'fop-small-code file)
1231 (dump-byte num-consts file)
1232 (dump-integer-as-n-bytes code-length 2 file))
1234 (dump-fop 'fop-code file)
1235 (dump-unsigned-32 num-consts file)
1236 (dump-unsigned-32 code-length file))))
1237 (dump-segment segment code-length file)
1238 (let ((code-handle (dump-pop file))
1239 (patch-table (fasl-output-patch-table file)))
1240 (dolist (patch (entry-patches))
1241 (push (cons code-handle (cdr patch))
1242 (gethash (car patch) patch-table)))
1245 ;;; Dump a byte-component. This is similar to FASL-DUMP-COMPONENT, but
1247 (defun fasl-dump-byte-component (segment length constants xeps file)
1248 (declare (type sb!assem:segment segment)
1250 (type vector constants)
1252 (type fasl-output file))
1254 (let ((code-handle (dump-byte-code-object segment length constants file)))
1255 (dolist (noise xeps)
1256 (let* ((lambda (car noise))
1257 (info (sb!c::lambda-info lambda))
1259 (dump-byte-function xep code-handle file)
1260 (let* ((entry-handle (dump-pop file))
1261 (patch-table (fasl-output-patch-table file))
1262 (old (gethash info patch-table)))
1263 (setf (gethash info (fasl-output-entry-table file))
1267 (dump-alter-code-object (car patch)
1271 (remhash info patch-table))))))
1274 (defun dump-push-previously-dumped-fun (fun fasl-output)
1275 (declare (type sb!c::clambda fun))
1276 (let ((handle (gethash (sb!c::leaf-info fun)
1277 (fasl-output-entry-table fasl-output))))
1279 (dump-push handle fasl-output))
1282 ;;; Dump a FOP-FUNCALL to call an already-dumped top-level lambda at
1284 (defun fasl-dump-top-level-lambda-call (fun fasl-output)
1285 (declare (type sb!c::clambda fun))
1286 (dump-push-previously-dumped-fun fun fasl-output)
1287 (dump-fop 'fop-funcall-for-effect fasl-output)
1288 (dump-byte 0 fasl-output)
1291 ;;; Dump a FOP-FSET to arrange static linkage (at cold init) between
1292 ;;; FUN-NAME and the already-dumped function whose dump handle is
1293 ;;; FUN-DUMP-HANDLE.
1295 (defun fasl-dump-cold-fset (fun-name fun-dump-handle fasl-output)
1296 (declare (type fixnum fun-dump-handle))
1297 (aver (legal-function-name-p fun-name))
1298 (dump-non-immediate-object fun-name fasl-output)
1299 (dump-push fun-dump-handle fasl-output)
1300 (dump-fop 'fop-fset fasl-output)
1303 ;;; Compute the correct list of DEBUG-SOURCE structures and backpatch
1304 ;;; all of the dumped DEBUG-INFO structures. We clear the
1305 ;;; FASL-OUTPUT-DEBUG-INFO, so that subsequent components with
1306 ;;; different source info may be dumped.
1307 (defun fasl-dump-source-info (info fasl-output)
1308 (declare (type sb!c::source-info info))
1309 (let ((res (sb!c::debug-source-for-info info))
1310 (*dump-only-valid-structures* nil))
1311 (dump-object res fasl-output)
1312 (let ((res-handle (dump-pop fasl-output)))
1313 (dolist (info-handle (fasl-output-debug-info fasl-output))
1314 (dump-push res-handle fasl-output)
1315 (dump-fop 'fop-structset fasl-output)
1316 (dump-unsigned-32 info-handle fasl-output)
1317 (dump-unsigned-32 2 fasl-output))))
1318 (setf (fasl-output-debug-info fasl-output) nil)
1321 ;;;; dumping structures
1323 (defun dump-structure (struct file)
1324 (when *dump-only-valid-structures*
1325 (unless (gethash struct (fasl-output-valid-structures file))
1326 (error "attempt to dump invalid structure:~% ~S~%How did this happen?"
1328 (note-potential-circularity struct file)
1329 (do ((index 0 (1+ index))
1330 (length (%instance-length struct))
1331 (circ (fasl-output-circularity-table file)))
1333 (dump-fop* length fop-small-struct fop-struct file))
1334 (let* ((obj (%instance-ref struct index))
1335 (ref (gethash obj circ)))
1337 (push (make-circularity :type :struct-set
1341 :enclosing-object ref)
1342 *circularities-detected*)
1343 (sub-dump-object nil file))
1345 (sub-dump-object obj file))))))
1347 (defun dump-layout (obj file)
1348 (when (layout-invalid obj)
1349 (compiler-error "attempt to dump reference to obsolete class: ~S"
1350 (layout-class obj)))
1351 (let ((name (sb!xc:class-name (layout-class obj))))
1353 (compiler-error "dumping anonymous layout: ~S" obj))
1354 (dump-fop 'fop-normal-load file)
1355 (let ((*cold-load-dump* t))
1356 (dump-object name file))
1357 (dump-fop 'fop-maybe-cold-load file))
1358 (sub-dump-object (layout-inherits obj) file)
1359 (sub-dump-object (layout-depthoid obj) file)
1360 (sub-dump-object (layout-length obj) file)
1361 (dump-fop 'fop-layout file))