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.
14 ;;; FIXME: Double colons are bad, and there are lots of them in this
15 ;;; file, because both dump logic in SB!C and load logic in SB!IMPL
16 ;;; need to know about fops. Perhaps all the load/dump logic should be
17 ;;; moved into a single package, perhaps called SB-LD.
19 ;;;; fasl dumper state
21 ;;; The FASL-FILE structure represents everything we need to know
22 ;;; about dumping to a fasl file. We need to objectify the state,
23 ;;; since the fasdumper must be reentrant.
25 #-no-ansi-print-object
26 (:print-object (lambda (x s)
27 (print-unreadable-object (x s :type t)
28 (prin1 (namestring (fasl-file-stream x)) s)))))
29 ;; The stream we dump to.
30 (stream (required-argument) :type stream)
31 ;; Hashtables we use to keep track of dumped constants so that we
32 ;; can get them from the table rather than dumping them again. The
33 ;; EQUAL-TABLE is used for lists and strings, and the EQ-TABLE is
34 ;; used for everything else. We use a separate EQ table to avoid
35 ;; performance patholigies with objects for which EQUAL degnerates
36 ;; to EQL. Everything entered in the EQUAL table is also entered in
38 (equal-table (make-hash-table :test 'equal) :type hash-table)
39 (eq-table (make-hash-table :test 'eq) :type hash-table)
40 ;; The table's current free pointer: the next offset to be used.
41 (table-free 0 :type index)
42 ;; an alist (PACKAGE . OFFSET) of the table offsets for each package
43 ;; we have currently located.
44 (packages () :type list)
45 ;; a table mapping from the Entry-Info structures for dumped XEPs to
46 ;; the table offsets of the corresponding code pointers
47 (entry-table (make-hash-table :test 'eq) :type hash-table)
48 ;; a table holding back-patching info for forward references to XEPs.
49 ;; The key is the Entry-Info structure for the XEP, and the value is
50 ;; a list of conses (<code-handle> . <offset>), where <code-handle>
51 ;; is the offset in the table of the code object needing to be
52 ;; patched, and <offset> is the offset that must be patched.
53 (patch-table (make-hash-table :test 'eq) :type hash-table)
54 ;; a list of the table handles for all of the DEBUG-INFO structures
55 ;; dumped in this file. These structures must be back-patched with
56 ;; source location information when the compilation is complete.
57 (debug-info () :type list)
58 ;; This is used to keep track of objects that we are in the process
59 ;; of dumping so that circularities can be preserved. The key is the
60 ;; object that we have previously seen, and the value is the object
61 ;; that we reference in the table to find this previously seen
62 ;; object. (The value is never NIL.)
64 ;; Except with list objects, the key and the value are always the
65 ;; same. In a list, the key will be some tail of the value.
66 (circularity-table (make-hash-table :test 'eq) :type hash-table)
67 ;; a hash table of structures that are allowed to be dumped. If we
68 ;; try to dump a structure that isn't in this hash table, we lose.
69 (valid-structures (make-hash-table :test 'eq) :type hash-table))
71 ;;; This structure holds information about a circularity.
72 (defstruct circularity
73 ;; the kind of modification to make to create circularity
74 (type (required-argument) :type (member :rplaca :rplacd :svset :struct-set))
75 ;; the object containing circularity
77 ;; index in object for circularity
78 (index (required-argument) :type index)
79 ;; the object to be stored at INDEX in OBJECT. This is that the key
80 ;; that we were using when we discovered the circularity.
82 ;; the value that was associated with VALUE in the
83 ;; CIRCULARITY-TABLE. This is the object that we look up in the
84 ;; EQ-TABLE to locate VALUE.
87 ;;; a list of the CIRCULARITY structures for all of the circularities
88 ;;; detected in the current top-level call to DUMP-OBJECT. Setting
89 ;;; this lobotomizes circularity detection as well, since circular
90 ;;; dumping uses the table.
91 (defvar *circularities-detected*)
93 ;;; used to inhibit table access when dumping forms to be read by the
95 (defvar *cold-load-dump* nil)
97 ;;; used to turn off the structure validation during dumping of source
99 (defvar *dump-only-valid-structures* t)
102 ;;; Write the byte B to the specified fasl-file stream.
103 (defun dump-byte (b fasl-file)
104 (declare (type (unsigned-byte 8) b) (type fasl-file fasl-file))
105 (write-byte b (fasl-file-stream fasl-file)))
107 ;;; Dump a 4 byte unsigned integer.
108 (defun dump-unsigned-32 (num fasl-file)
109 (declare (type (unsigned-byte 32) num) (type fasl-file fasl-file))
110 (let ((stream (fasl-file-stream fasl-file)))
112 (write-byte (ldb (byte 8 (* 8 i)) num) stream))))
114 ;;; Dump NUM to the fasl stream, represented by N bytes. This works for either
115 ;;; signed or unsigned integers. There's no range checking -- if you don't
116 ;;; specify enough bytes for the number to fit, this function cheerfully
117 ;;; outputs the low bytes.
118 (defun dump-integer-as-n-bytes (num bytes file)
119 (declare (integer num) (type index bytes) (type fasl-file file))
120 (do ((n num (ash n -8))
123 (declare (type index i))
124 (dump-byte (logand n #xff) file))
127 ;;; Setting this variable to an (UNSIGNED-BYTE 32) value causes DUMP-FOP to use
128 ;;; it as a counter and emit a FOP-NOP4 with the counter value before every
129 ;;; ordinary fop. This can make it easier to follow the progress of FASLOAD
130 ;;; when debugging/testing/experimenting.
131 #!+sb-show (defvar *fop-nop4-count* 0)
132 #!+sb-show (declaim (type (or (unsigned-byte 32) null) *fop-nop4-count*))
133 ;;; FIXME: The default value here should become NIL once I get the system to
136 ;;; Dump the FOP code for the named FOP to the specified fasl-file.
138 ;;; FIXME: This should be a function, with a compiler macro expansion for the
139 ;;; common constant-FS case. (Among other things, that'll stop it from
140 ;;; EVALing ,FILE multiple times.)
142 ;;; FIXME: Compiler macros, frozen classes, inlining, and similar optimizations
143 ;;; should be conditional on #!+SB-FROZEN.
144 (defmacro dump-fop (fs file)
145 (let* ((fs (eval fs))
146 (val (get fs 'sb!impl::fop-code)))
150 (when *fop-nop4-count*
151 (dump-byte ,(get 'sb!impl::fop-nop4 'sb!impl::fop-code) ,file)
152 (dump-unsigned-32 (mod (incf *fop-nop4-count*) (expt 2 32)) ,file))
153 (dump-byte ',val ,file))
154 (error "compiler bug: ~S is not a legal fasload operator." fs))))
156 ;;; Dump a FOP-Code along with an integer argument, choosing the FOP based
157 ;;; on whether the argument will fit in a single byte.
159 ;;; FIXME: This, like DUMP-FOP, should be a function with a compiler-macro
161 (defmacro dump-fop* (n byte-fop word-fop file)
165 (dump-fop ',byte-fop ,n-file)
166 (dump-byte ,n-n ,n-file))
168 (dump-fop ',word-fop ,n-file)
169 (dump-unsigned-32 ,n-n ,n-file)))))
171 ;;; Push the object at table offset Handle on the fasl stack.
172 (defun dump-push (handle file)
173 (declare (type index handle) (type fasl-file file))
174 (dump-fop* handle sb!impl::fop-byte-push sb!impl::fop-push file)
177 ;;; Pop the object currently on the fasl stack top into the table, and
178 ;;; return the table index, incrementing the free pointer.
179 (defun dump-pop (file)
181 (fasl-file-table-free file)
182 (dump-fop 'sb!impl::fop-pop file)
183 (incf (fasl-file-table-free file))))
185 ;;; If X is in File's EQUAL-TABLE, then push the object and return T,
186 ;;; otherwise NIL. If *COLD-LOAD-DUMP* is true, then do nothing and
188 (defun equal-check-table (x file)
189 (declare (type fasl-file file))
190 (unless *cold-load-dump*
191 (let ((handle (gethash x (fasl-file-equal-table file))))
193 (dump-push handle file)
198 ;;; These functions are called after dumping an object to save the
199 ;;; object in the table. The object (also passed in as X) must already
200 ;;; be on the top of the FOP stack. If *COLD-LOAD-DUMP* is true, then
201 ;;; we don't do anything.
202 (defun eq-save-object (x file)
203 (declare (type fasl-file file))
204 (unless *cold-load-dump*
205 (let ((handle (dump-pop file)))
206 (setf (gethash x (fasl-file-eq-table file)) handle)
207 (dump-push handle file)))
209 (defun equal-save-object (x file)
210 (declare (type fasl-file file))
211 (unless *cold-load-dump*
212 (let ((handle (dump-pop file)))
213 (setf (gethash x (fasl-file-equal-table file)) handle)
214 (setf (gethash x (fasl-file-eq-table file)) handle)
215 (dump-push handle file)))
218 ;;; Record X in File's CIRCULARITY-TABLE unless *COLD-LOAD-DUMP* is
219 ;;; true. This is called on objects that we are about to dump might
220 ;;; have a circular path through them.
222 ;;; The object must not currently be in this table, since the dumper
223 ;;; should never be recursively called on a circular reference.
224 ;;; Instead, the dumping function must detect the circularity and
225 ;;; arrange for the dumped object to be patched.
226 (defun note-potential-circularity (x file)
227 (unless *cold-load-dump*
228 (let ((circ (fasl-file-circularity-table file)))
229 (assert (not (gethash x circ)))
230 (setf (gethash x circ) x)))
233 ;;; Dump FORM to a fasl file so that it evaluated at load time in normal
234 ;;; load and at cold-load time in cold load. This is used to dump package
236 (defun fasl-dump-cold-load-form (form file)
237 (declare (type fasl-file file))
238 (dump-fop 'sb!impl::fop-normal-load file)
239 (let ((*cold-load-dump* t))
240 (dump-object form file))
241 (dump-fop 'sb!impl::fop-eval-for-effect file)
242 (dump-fop 'sb!impl::fop-maybe-cold-load file)
245 ;;;; opening and closing fasl files
247 ;;; Open a fasl file, write its header, and return a FASL-FILE object for
248 ;;; dumping to it. Some human-readable information about the source code is
249 ;;; given by the string WHERE. If BYTE-P is true, this file will contain no
250 ;;; native code, and is thus largely implementation independent.
251 (defun open-fasl-file (name where &optional byte-p)
252 (declare (type pathname name))
253 (let* ((stream (open name
255 :if-exists :new-version
256 :element-type 'sb!assem:assembly-unit))
257 (res (make-fasl-file :stream stream)))
259 ;; Begin the header with the constant machine-readable (and
260 ;; semi-human-readable) string which is used to identify fasl files.
261 (write-string sb!c:*fasl-header-string-start-string* stream)
263 ;; The constant string which begins the header is followed by arbitrary
264 ;; human-readable text, terminated by a special character code.
265 (with-standard-io-syntax
271 using ~A version ~A~%"
273 (format-universal-time nil (get-universal-time))
275 (sb!xc:lisp-implementation-type)
276 (sb!xc:lisp-implementation-version)))
277 (dump-byte sb!c:*fasl-header-string-stop-char-code* res)
279 ;; Finish the header by outputting fasl file implementation and version in
280 ;; machine-readable form.
281 (multiple-value-bind (implementation version)
283 (values *backend-byte-order*
284 byte-fasl-file-version)
285 (values *backend-fasl-file-implementation*
286 *backend-fasl-file-version*))
287 (dump-unsigned-32 (length (symbol-name implementation)) res)
288 (dotimes (i (length (symbol-name implementation)))
289 (dump-byte (char-code (aref (symbol-name implementation) i)) res))
290 (dump-unsigned-32 version res))
294 ;;; Close the specified FASL-FILE, aborting the write if ABORT-P.
295 ;;; We do various sanity checks, then end the group.
296 (defun close-fasl-file (file abort-p)
297 (declare (type fasl-file file))
298 (assert (zerop (hash-table-count (fasl-file-patch-table file))))
299 (dump-fop 'sb!impl::fop-verify-empty-stack file)
300 (dump-fop 'sb!impl::fop-verify-table-size file)
301 (dump-unsigned-32 (fasl-file-table-free file) file)
302 (dump-fop 'sb!impl::fop-end-group file)
303 (close (fasl-file-stream file) :abort abort-p)
306 ;;;; main entries to object dumping
308 ;;; This function deals with dumping objects that are complex enough so that
309 ;;; we want to cache them in the table, rather than repeatedly dumping them.
310 ;;; If the object is in the EQ-TABLE, then we push it, otherwise, we do a type
311 ;;; dispatch to a type specific dumping function. The type specific branches
312 ;;; do any appropriate EQUAL-TABLE check and table entry.
314 ;;; When we go to dump the object, we enter it in the CIRCULARITY-TABLE.
315 (defun dump-non-immediate-object (x file)
316 (let ((index (gethash x (fasl-file-eq-table file))))
317 (cond ((and index (not *cold-load-dump*))
318 (dump-push index file))
321 (symbol (dump-symbol x file))
323 (unless (equal-check-table x file)
325 (equal-save-object x file)))
328 (eq-save-object x file))
330 (dump-structure x file)
331 (eq-save-object x file))
333 ;; FIXME: The comment at the head of DUMP-NON-IMMEDIATE-OBJECT
334 ;; says it's for objects which we want to save, instead of
335 ;; repeatedly dumping them. But then we dump arrays here without
336 ;; doing anything a la EQUAL-SAVE-OBJECT. What gives?
339 (unless (equal-check-table x file)
341 (ratio (dump-ratio x file))
342 (complex (dump-complex x file))
343 (float (dump-float x file))
344 (integer (dump-integer x file)))
345 (equal-save-object x file)))
347 ;; This probably never happens, since bad things tend to be
348 ;; detected during IR1 conversion.
349 (error "This object cannot be dumped into a fasl file:~% ~S"
353 ;;; Dump an object of any type by dispatching to the correct type-specific
354 ;;; dumping function. We pick off immediate objects, symbols and and magic
355 ;;; lists here. Other objects are handled by Dump-Non-Immediate-Object.
357 ;;; This is the function used for recursive calls to the fasl dumper. We don't
358 ;;; worry about creating circularities here, since it is assumed that there is
359 ;;; a top-level call to Dump-Object.
360 (defun sub-dump-object (x file)
363 (dump-non-immediate-object x file)
364 (dump-fop 'sb!impl::fop-empty-list file)))
367 (dump-fop 'sb!impl::fop-truth file)
368 (dump-non-immediate-object x file)))
369 ((target-fixnump x) (dump-integer x file))
370 ((characterp x) (dump-character x file))
372 (dump-non-immediate-object x file))))
374 ;;; Dump stuff to backpatch already dumped objects. Infos is the list of
375 ;;; Circularity structures describing what to do. The patching FOPs take the
376 ;;; value to store on the stack. We compute this value by fetching the
377 ;;; enclosing object from the table, and then CDR'ing it if necessary.
378 (defun dump-circularities (infos file)
379 (let ((table (fasl-file-eq-table file)))
381 (let* ((value (circularity-value info))
382 (enclosing (circularity-enclosing-object info)))
383 (dump-push (gethash enclosing table) file)
384 (unless (eq enclosing value)
385 (do ((current enclosing (cdr current))
388 (dump-fop 'sb!impl::fop-nthcdr file)
389 (dump-unsigned-32 i file))
390 (declare (type index i)))))
392 (ecase (circularity-type info)
393 (:rplaca (dump-fop 'sb!impl::fop-rplaca file))
394 (:rplacd (dump-fop 'sb!impl::fop-rplacd file))
395 (:svset (dump-fop 'sb!impl::fop-svset file))
396 (:struct-set (dump-fop 'sb!impl::fop-structset file)))
397 (dump-unsigned-32 (gethash (circularity-object info) table) file)
398 (dump-unsigned-32 (circularity-index info) file))))
400 ;;; Set up stuff for circularity detection, then dump an object. All shared
401 ;;; and circular structure will be exactly preserved within a single call to
402 ;;; Dump-Object. Sharing between objects dumped by separate calls is only
403 ;;; preserved when convenient.
405 ;;; We peek at the object type so that we only pay the circular detection
406 ;;; overhead on types of objects that might be circular.
407 (defun dump-object (x file)
408 (if (or (array-header-p x)
412 (let ((*circularities-detected* ())
413 (circ (fasl-file-circularity-table file)))
415 (sub-dump-object x file)
416 (when *circularities-detected*
417 (dump-circularities *circularities-detected* file)
419 (sub-dump-object x file)))
421 ;;;; LOAD-TIME-VALUE and MAKE-LOAD-FORM support
423 ;;; Emit a funcall of the function and return the handle for the result.
424 (defun fasl-dump-load-time-value-lambda (fun file)
425 (declare (type clambda fun) (type fasl-file file))
426 (let ((handle (gethash (leaf-info fun) (fasl-file-entry-table file))))
428 (dump-push handle file)
429 (dump-fop 'sb!impl::fop-funcall file)
433 ;;; Return T iff CONSTANT has not already been dumped. It's been dumped
434 ;;; if it's in the EQ table.
435 (defun fasl-constant-already-dumped (constant file)
436 (if (or (gethash constant (fasl-file-eq-table file))
437 (gethash constant (fasl-file-valid-structures file)))
441 ;;; Use HANDLE whenever we try to dump CONSTANT. HANDLE should have been
442 ;;; returned earlier by FASL-DUMP-LOAD-TIME-VALUE-LAMBDA.
443 (defun fasl-note-handle-for-constant (constant handle file)
444 (let ((table (fasl-file-eq-table file)))
445 (when (gethash constant table)
446 (error "~S already dumped?" constant))
447 (setf (gethash constant table) handle))
450 ;;; Note that the specified structure can just be dumped by enumerating the
452 (defun fasl-validate-structure (structure file)
453 (setf (gethash structure (fasl-file-valid-structures file)) t)
460 (defun dump-ratio (x file)
461 (sub-dump-object (numerator x) file)
462 (sub-dump-object (denominator x) file)
463 (dump-fop 'sb!impl::fop-ratio file))
467 (defun dump-integer (n file)
470 (dump-fop 'sb!impl::fop-byte-integer file)
471 (dump-byte (logand #xFF n) file))
473 (dump-fop 'sb!impl::fop-word-integer file)
474 (dump-unsigned-32 n file))
476 (dump-fop 'sb!impl::fop-word-integer file)
477 (dump-integer-as-n-bytes n 4 file))
479 (let ((bytes (ceiling (1+ (integer-length n)) 8)))
481 sb!impl::fop-small-integer
484 (dump-integer-as-n-bytes n bytes file)))))
486 (defun dump-float (x file)
489 (dump-fop 'sb!impl::fop-single-float file)
490 (dump-integer-as-n-bytes (single-float-bits x) 4 file))
492 (dump-fop 'sb!impl::fop-double-float file)
494 (declare (double-float x))
495 ;; FIXME: Why sometimes DUMP-UNSIGNED-32 and sometimes
496 ;; DUMP-INTEGER-AS-N-BYTES .. 4?
497 (dump-unsigned-32 (double-float-low-bits x) file)
498 (dump-integer-as-n-bytes (double-float-high-bits x) 4 file)))
501 (dump-fop 'sb!impl::fop-long-float file)
502 (dump-long-float x file))))
504 (defun dump-complex (x file)
507 ((complex single-float)
508 (dump-fop 'sb!impl::fop-complex-single-float file)
509 (dump-integer-as-n-bytes (single-float-bits (realpart x)) 4 file)
510 (dump-integer-as-n-bytes (single-float-bits (imagpart x)) 4 file))
512 ((complex double-float)
513 (dump-fop 'sb!impl::fop-complex-double-float file)
514 (let ((re (realpart x)))
515 (declare (double-float re))
516 (dump-unsigned-32 (double-float-low-bits re) file)
517 (dump-integer-as-n-bytes (double-float-high-bits re) 4 file))
518 (let ((im (imagpart x)))
519 (declare (double-float im))
520 (dump-unsigned-32 (double-float-low-bits im) file)
521 (dump-integer-as-n-bytes (double-float-high-bits im) 4 file)))
522 #!+(and long-float (not sb-xc))
523 ((complex long-float)
524 (dump-fop 'sb!impl::fop-complex-long-float file)
525 (dump-long-float (realpart x) file)
526 (dump-long-float (imagpart x) file))
528 (sub-dump-object (realpart x) file)
529 (sub-dump-object (imagpart x) file)
530 (dump-fop 'sb!impl::fop-complex file))))
534 ;;; Return the table index of PKG, adding the package to the table if
535 ;;; necessary. During cold load, we read the string as a normal string so that
536 ;;; we can do the package lookup at cold load time.
538 ;;; KLUDGE: Despite the parallelism in names, the functionality of this
539 ;;; function is not parallel to other functions DUMP-FOO, e.g. DUMP-SYMBOL
540 ;;; and DUMP-LIST. -- WHN 19990119
541 (defun dump-package (pkg file)
542 (declare (type package pkg) (type fasl-file file) (values index)
544 (cond ((cdr (assoc pkg (fasl-file-packages file) :test #'eq)))
546 (unless *cold-load-dump*
547 (dump-fop 'sb!impl::fop-normal-load file))
548 (dump-simple-string (package-name pkg) file)
549 (dump-fop 'sb!impl::fop-package file)
550 (unless *cold-load-dump*
551 (dump-fop 'sb!impl::fop-maybe-cold-load file))
552 (let ((entry (dump-pop file)))
553 (push (cons pkg entry) (fasl-file-packages file))
558 ;;; Dump a list, setting up patching information when there are
559 ;;; circularities. We scan down the list, checking for CDR and CAR
562 ;;; If there is a CDR circularity, we terminate the list with NIL and
563 ;;; make a CIRCULARITY notation for the CDR of the previous cons.
565 ;;; If there is no CDR circularity, then we mark the current cons and
566 ;;; check for a CAR circularity. When there is a CAR circularity, we
567 ;;; make the CAR NIL initially, arranging for the current cons to be
570 ;;; Otherwise, we recursively call the dumper to dump the current
573 ;;; Marking of the conses is inhibited when *COLD-LOAD-DUMP* is true.
574 ;;; This inhibits all circularity detection.
575 (defun dump-list (list file)
577 (not (gethash list (fasl-file-circularity-table file)))))
578 (do* ((l list (cdr l))
580 (circ (fasl-file-circularity-table file)))
583 (terminate-undotted-list n file))
585 (sub-dump-object l file)
586 (terminate-dotted-list n file))))
587 (declare (type index n))
588 (let ((ref (gethash l circ)))
590 (push (make-circularity :type :rplacd
594 :enclosing-object ref)
595 *circularities-detected*)
596 (terminate-undotted-list n file)
599 (unless *cold-load-dump*
600 (setf (gethash l circ) list))
603 (ref (gethash obj circ)))
605 (push (make-circularity :type :rplaca
609 :enclosing-object ref)
610 *circularities-detected*)
611 (sub-dump-object nil file))
613 (sub-dump-object obj file))))))
615 (defun terminate-dotted-list (n file)
616 (declare (type index n) (type fasl-file file))
618 (1 (dump-fop 'sb!impl::fop-list*-1 file))
619 (2 (dump-fop 'sb!impl::fop-list*-2 file))
620 (3 (dump-fop 'sb!impl::fop-list*-3 file))
621 (4 (dump-fop 'sb!impl::fop-list*-4 file))
622 (5 (dump-fop 'sb!impl::fop-list*-5 file))
623 (6 (dump-fop 'sb!impl::fop-list*-6 file))
624 (7 (dump-fop 'sb!impl::fop-list*-7 file))
625 (8 (dump-fop 'sb!impl::fop-list*-8 file))
626 (T (do ((nn n (- nn 255)))
628 (dump-fop 'sb!impl::fop-list* file)
630 (declare (type index nn))
631 (dump-fop 'sb!impl::fop-list* file)
632 (dump-byte 255 file)))))
634 ;;; If N > 255, must build list with one list operator, then list* operators.
636 (defun terminate-undotted-list (n file)
637 (declare (type index n) (type fasl-file file))
639 (1 (dump-fop 'sb!impl::fop-list-1 file))
640 (2 (dump-fop 'sb!impl::fop-list-2 file))
641 (3 (dump-fop 'sb!impl::fop-list-3 file))
642 (4 (dump-fop 'sb!impl::fop-list-4 file))
643 (5 (dump-fop 'sb!impl::fop-list-5 file))
644 (6 (dump-fop 'sb!impl::fop-list-6 file))
645 (7 (dump-fop 'sb!impl::fop-list-7 file))
646 (8 (dump-fop 'sb!impl::fop-list-8 file))
648 (dump-fop 'sb!impl::fop-list file)
650 (t (dump-fop 'sb!impl::fop-list file)
652 (do ((nn (- n 255) (- nn 255)))
654 (dump-fop 'sb!impl::fop-list* file)
656 (declare (type index nn))
657 (dump-fop 'sb!impl::fop-list* file)
658 (dump-byte 255 file)))))))
662 ;;; Dump the array thing.
663 (defun dump-array (x file)
666 (dump-multi-dim-array x file)))
668 ;;; Dump the vector object. If it's not simple, then actually dump a simple
669 ;;; version of it. But we enter the original in the EQ or EQUAL tables.
670 (defun dump-vector (x file)
671 (let ((simple-version (if (array-header-p x)
672 (coerce x 'simple-array)
674 (typecase simple-version
676 (unless (equal-check-table x file)
677 (dump-simple-string simple-version file)
678 (equal-save-object x file)))
680 (dump-simple-vector simple-version file)
681 (eq-save-object x file))
682 ((simple-array single-float (*))
683 (dump-single-float-vector simple-version file)
684 (eq-save-object x file))
685 ((simple-array double-float (*))
686 (dump-double-float-vector simple-version file)
687 (eq-save-object x file))
689 ((simple-array long-float (*))
690 (dump-long-float-vector simple-version file)
691 (eq-save-object x file))
692 ((simple-array (complex single-float) (*))
693 (dump-complex-single-float-vector simple-version file)
694 (eq-save-object x file))
695 ((simple-array (complex double-float) (*))
696 (dump-complex-double-float-vector simple-version file)
697 (eq-save-object x file))
699 ((simple-array (complex long-float) (*))
700 (dump-complex-long-float-vector simple-version file)
701 (eq-save-object x file))
703 (dump-i-vector simple-version file)
704 (eq-save-object x file)))))
706 ;;; Dump a SIMPLE-VECTOR, handling any circularities.
707 (defun dump-simple-vector (v file)
708 (declare (type simple-vector v) (type fasl-file file))
709 (note-potential-circularity v file)
710 (do ((index 0 (1+ index))
712 (circ (fasl-file-circularity-table file)))
715 sb!impl::fop-small-vector
718 (let* ((obj (aref v index))
719 (ref (gethash obj circ)))
721 (push (make-circularity :type :svset
725 :enclosing-object ref)
726 *circularities-detected*)
727 (sub-dump-object nil file))
729 (sub-dump-object obj file))))))
731 (defun dump-i-vector (vec file &key data-only)
732 (declare (type (simple-array * (*)) vec))
733 (let ((len (length vec)))
734 (labels ((dump-unsigned-vector (size bytes)
736 (dump-fop 'sb!impl::fop-int-vector file)
737 (dump-unsigned-32 len file)
738 (dump-byte size file))
739 ;; The case which is easy to handle in a portable way is when
740 ;; the element size is a multiple of the output byte size, and
741 ;; happily that's the only case we need to be portable. (The
742 ;; cross-compiler has to output debug information (including
743 ;; (SIMPLE-ARRAY (UNSIGNED-BYTE 8) *).) The other cases are only
744 ;; needed in the target SBCL, so we let them be handled with
745 ;; unportable bit bashing.
746 (cond ((>= size 8) ; easy cases
747 (multiple-value-bind (floor rem) (floor size 8)
750 (dump-integer-as-n-bytes i floor file))))
751 (t ; harder cases, not supported in cross-compiler
752 (dump-raw-bytes vec bytes file))))
753 (dump-signed-vector (size bytes)
754 ;; Note: Dumping specialized signed vectors isn't supported in
755 ;; the cross-compiler. (All cases here end up trying to call
756 ;; DUMP-RAW-BYTES, which isn't provided in the cross-compilation
757 ;; host, only on the target machine.)
759 (dump-fop 'sb!impl::fop-signed-int-vector file)
760 (dump-unsigned-32 len file)
761 (dump-byte size file))
762 (dump-raw-bytes vec bytes file)))
764 ;; KLUDGE: What exactly does the (ASH .. -3) stuff do? -- WHN 19990902
766 (dump-unsigned-vector 1 (ash (+ (the index len) 7) -3)))
767 ((simple-array (unsigned-byte 2) (*))
768 (dump-unsigned-vector 2 (ash (+ (the index (ash len 1)) 7) -3)))
769 ((simple-array (unsigned-byte 4) (*))
770 (dump-unsigned-vector 4 (ash (+ (the index (ash len 2)) 7) -3)))
771 ((simple-array (unsigned-byte 8) (*))
772 (dump-unsigned-vector 8 len))
773 ((simple-array (unsigned-byte 16) (*))
774 (dump-unsigned-vector 16 (* 2 len)))
775 ((simple-array (unsigned-byte 32) (*))
776 (dump-unsigned-vector 32 (* 4 len)))
777 ((simple-array (signed-byte 8) (*))
778 (dump-signed-vector 8 len))
779 ((simple-array (signed-byte 16) (*))
780 (dump-signed-vector 16 (* 2 len)))
781 ((simple-array (signed-byte 30) (*))
782 (dump-signed-vector 30 (* 4 len)))
783 ((simple-array (signed-byte 32) (*))
784 (dump-signed-vector 32 (* 4 len)))))))
786 ;;; Dump characters and string-ish things.
788 (defun dump-character (ch file)
789 (dump-fop 'sb!impl::fop-short-character file)
790 (dump-byte (char-code ch) file))
792 ;;; a helper function shared by DUMP-SIMPLE-STRING and DUMP-SYMBOL
793 (defun dump-characters-of-string (s fasl-file)
794 (declare (type string s) (type fasl-file fasl-file))
796 (dump-byte (char-code c) fasl-file))
799 ;;; Dump a SIMPLE-BASE-STRING.
800 ;;; FIXME: should be called DUMP-SIMPLE-BASE-STRING then
801 (defun dump-simple-string (s file)
802 (declare (type simple-base-string s))
803 (dump-fop* (length s)
804 sb!impl::fop-small-string
807 (dump-characters-of-string s file)
810 ;;; If we get here, it is assumed that the symbol isn't in the table,
811 ;;; but we are responsible for putting it there when appropriate. To
812 ;;; avoid too much special-casing, we always push the symbol in the
813 ;;; table, but don't record that we have done so if *COLD-LOAD-DUMP*
815 (defun dump-symbol (s file)
816 (let* ((pname (symbol-name s))
817 (pname-length (length pname))
818 (pkg (symbol-package s)))
821 (dump-fop* pname-length
822 sb!impl::fop-uninterned-small-symbol-save
823 sb!impl::fop-uninterned-symbol-save
825 ;; CMU CL had FOP-SYMBOL-SAVE/FOP-SMALL-SYMBOL-SAVE fops which
826 ;; used the current value of *PACKAGE*. Unfortunately that's
827 ;; broken w.r.t. ANSI Common Lisp semantics, so those are gone
829 ;;((eq pkg *package*)
830 ;; (dump-fop* pname-length
831 ;; sb!impl::fop-small-symbol-save
832 ;; sb!impl::fop-symbol-save file))
833 ((eq pkg sb!int:*cl-package*)
834 (dump-fop* pname-length
835 sb!impl::fop-lisp-small-symbol-save
836 sb!impl::fop-lisp-symbol-save
838 ((eq pkg sb!int:*keyword-package*)
839 (dump-fop* pname-length
840 sb!impl::fop-keyword-small-symbol-save
841 sb!impl::fop-keyword-symbol-save
843 ((< pname-length 256)
844 (dump-fop* (dump-package pkg file)
845 sb!impl::fop-small-symbol-in-byte-package-save
846 sb!impl::fop-small-symbol-in-package-save
848 (dump-byte pname-length file))
850 (dump-fop* (dump-package pkg file)
851 sb!impl::fop-symbol-in-byte-package-save
852 sb!impl::fop-symbol-in-package-save
854 (dump-unsigned-32 pname-length file)))
856 (dump-characters-of-string pname file)
858 (unless *cold-load-dump*
859 (setf (gethash s (fasl-file-eq-table file))
860 (fasl-file-table-free file)))
862 (incf (fasl-file-table-free file)))
866 ;;;; component (function) dumping
868 (defun dump-segment (segment code-length fasl-file)
869 (declare (type sb!assem:segment segment)
870 (type fasl-file fasl-file))
871 (let* ((stream (fasl-file-stream fasl-file))
872 (nwritten (write-segment-contents segment stream)))
873 ;; In CMU CL there was no enforced connection between the CODE-LENGTH
874 ;; argument and the number of bytes actually written. I added this
875 ;; assertion while trying to debug portable genesis. -- WHN 19990902
876 (unless (= code-length nwritten)
877 (error "internal error, code-length=~D, nwritten=~D"
880 ;; KLUDGE: It's not clear what this is trying to do, but it looks as though
881 ;; it's an implicit undocumented dependence on a 4-byte wordsize which could
882 ;; be painful in porting. Note also that there are other undocumented
883 ;; modulo-4 things scattered throughout the code and conditionalized
884 ;; with GENGC, and I don't know what those do either. -- WHN 19990323
885 #!+gengc (unless (zerop (logand code-length 3))
886 (dotimes (i (- 4 (logand code-length 3)))
887 (dump-byte 0 fasl-file)))
890 ;;; Dump all the fixups. Currently there are three flavors of fixup:
891 ;;; - assembly routines: named by a symbol
892 ;;; - foreign (C) symbols: named by a string
893 ;;; - code object references: don't need a name.
894 (defun dump-fixups (fixups fasl-file)
895 (declare (list fixups) (type fasl-file fasl-file))
896 (dolist (info fixups)
897 ;; FIXME: Packing data with LIST in NOTE-FIXUP and unpacking them
898 ;; with FIRST, SECOND, and THIRD here is hard to follow and maintain.
899 ;; Perhaps we could define a FIXUP-INFO structure to use instead, and
900 ;; rename *FIXUPS* to *FIXUP-INFO-LIST*?
901 (let* ((kind (first info))
902 (fixup (second info))
903 (name (fixup-name fixup))
904 (flavor (fixup-flavor fixup))
905 (offset (third info)))
906 ;; FIXME: This OFFSET is not what's called OFFSET in
907 ;; the FIXUP structure, it's what's called POSN in NOTE-FIXUP.
908 ;; (As far as I can tell, FIXUP-OFFSET is not actually an offset,
909 ;; it's an internal label used instead of NAME for :CODE-OBJECT
910 ;; fixups. Notice that in the :CODE-OBJECT case, NAME is ignored.)
911 (dump-fop 'sb!impl::fop-normal-load fasl-file)
912 (let ((*cold-load-dump* t))
913 (dump-object kind fasl-file))
914 (dump-fop 'sb!impl::fop-maybe-cold-load fasl-file)
915 ;; Depending on the flavor, we may have various kinds of
916 ;; noise before the offset.
919 (assert (symbolp name))
920 (dump-fop 'sb!impl::fop-normal-load fasl-file)
921 (let ((*cold-load-dump* t))
922 (dump-object name fasl-file))
923 (dump-fop 'sb!impl::fop-maybe-cold-load fasl-file)
924 (dump-fop 'sb!impl::fop-assembler-fixup fasl-file))
926 (assert (stringp name))
927 (dump-fop 'sb!impl::fop-foreign-fixup fasl-file)
928 (let ((len (length name)))
929 (assert (< len 256)) ; (limit imposed by fop definition)
930 (dump-byte len fasl-file)
932 (dump-byte (char-code (schar name i)) fasl-file))))
935 (dump-fop 'sb!impl::fop-code-object-fixup fasl-file)))
936 ;; No matter what the flavor, we'll always dump the offset.
937 (dump-unsigned-32 offset fasl-file)))
940 ;;; Dump out the constant pool and code-vector for component, push the
941 ;;; result in the table, and return the offset.
943 ;;; The only tricky thing is handling constant-pool references to functions.
944 ;;; If we have already dumped the function, then we just push the code pointer.
945 ;;; Otherwise, we must create back-patching information so that the constant
946 ;;; will be set when the function is eventually dumped. This is a bit awkward,
947 ;;; since we don't have the handle for the code object being dumped while we
948 ;;; are dumping its constants.
950 ;;; We dump trap objects in any unused slots or forward referenced slots.
951 (defun dump-code-object (component
958 (declare (type component component)
959 (list trace-table-as-list)
960 (type index code-length)
961 (type fasl-file fasl-file))
963 (let* ((2comp (component-info component))
964 (constants (ir2-component-constants 2comp))
965 (header-length (length constants))
966 (packed-trace-table (pack-trace-table trace-table-as-list))
967 (total-length (+ code-length
968 (* (length packed-trace-table) tt-bytes-per-entry))))
972 ;; Dump the debug info.
974 (let ((info (debug-info-for-component component))
975 (*dump-only-valid-structures* nil))
976 (dump-object info fasl-file)
977 (let ((info-handle (dump-pop fasl-file)))
978 (dump-push info-handle fasl-file)
979 (push info-handle (fasl-file-debug-info fasl-file))))
981 ;; Dump the offset of the trace table.
982 (dump-object code-length fasl-file)
983 ;; KLUDGE: Now that we don't have GENGC, the trace table is hardwired
984 ;; to be empty. Could we get rid of trace tables? What are the
985 ;; virtues of GENGC vs. GENCGC vs. whatnot?
987 ;; Dump the constants, noting any :entries that have to be fixed up.
988 (do ((i sb!vm:code-constants-offset (1+ i)))
989 ((>= i header-length))
990 (let ((entry (aref constants i)))
993 (dump-object (constant-value entry) fasl-file))
997 (let* ((info (leaf-info (cdr entry)))
998 (handle (gethash info
999 (fasl-file-entry-table fasl-file))))
1002 (dump-push handle fasl-file))
1004 (patches (cons info i))
1005 (dump-fop 'sb!impl::fop-misc-trap fasl-file)))))
1007 (dump-push (cdr entry) fasl-file))
1009 (dump-object (cdr entry) fasl-file)
1010 (dump-fop 'sb!impl::fop-fdefinition fasl-file))))
1012 (dump-fop 'sb!impl::fop-misc-trap fasl-file)))))
1014 ;; Dump the debug info.
1016 (let ((info (debug-info-for-component component))
1017 (*dump-only-valid-structures* nil))
1018 (dump-object info fasl-file)
1019 (let ((info-handle (dump-pop fasl-file)))
1020 (dump-push info-handle fasl-file)
1021 (push info-handle (fasl-file-debug-info fasl-file))))
1023 (let ((num-consts #!+gengc (- header-length
1024 sb!vm:code-debug-info-slot)
1025 #!-gengc (- header-length
1026 sb!vm:code-trace-table-offset-slot))
1027 (total-length #!+gengc (ceiling total-length 4)
1028 #!-gengc total-length))
1029 (cond ((and (< num-consts #x100) (< total-length #x10000))
1030 (dump-fop 'sb!impl::fop-small-code fasl-file)
1031 (dump-byte num-consts fasl-file)
1032 (dump-integer-as-n-bytes total-length 2 fasl-file))
1034 (dump-fop 'sb!impl::fop-code fasl-file)
1035 (dump-unsigned-32 num-consts fasl-file)
1036 (dump-unsigned-32 total-length fasl-file))))
1038 ;; These two dumps are only ones which contribute to our TOTAL-LENGTH
1040 (dump-segment code-segment code-length fasl-file)
1041 (dump-i-vector packed-trace-table fasl-file :data-only t)
1043 ;; DUMP-FIXUPS does its own internal DUMP-FOPs: the bytes it dumps aren't
1044 ;; included in the TOTAL-LENGTH passed to our FOP-CODE/FOP-SMALL-CODE
1046 (dump-fixups fixups fasl-file)
1048 (dump-fop 'sb!impl::fop-sanctify-for-execution fasl-file)
1049 (let ((handle (dump-pop fasl-file)))
1050 (dolist (patch (patches))
1051 (push (cons handle (cdr patch))
1052 (gethash (car patch) (fasl-file-patch-table fasl-file))))
1055 (defun dump-assembler-routines (code-segment length fixups routines file)
1056 (dump-fop 'sb!impl::fop-assembler-code file)
1057 (dump-unsigned-32 #!+gengc (ceiling length 4)
1060 (write-segment-contents code-segment (fasl-file-stream file))
1061 (dolist (routine routines)
1062 (dump-fop 'sb!impl::fop-normal-load file)
1063 (let ((*cold-load-dump* t))
1064 (dump-object (car routine) file))
1065 (dump-fop 'sb!impl::fop-maybe-cold-load file)
1066 (dump-fop 'sb!impl::fop-assembler-routine file)
1067 (dump-unsigned-32 (label-position (cdr routine)) file))
1068 (dump-fixups fixups file)
1069 (dump-fop 'sb!impl::fop-sanctify-for-execution file)
1072 ;;; Dump a function-entry data structure corresponding to Entry to File.
1073 ;;; Code-Handle is the table offset of the code object for the component.
1075 ;;; If the entry is a DEFUN, then we also dump a FOP-FSET so that the cold
1076 ;;; loader can instantiate the definition at cold-load time, allowing forward
1077 ;;; references to functions in top-level forms.
1078 (defun dump-one-entry (entry code-handle file)
1079 (declare (type entry-info entry) (type index code-handle)
1080 (type fasl-file file))
1081 (let ((name (entry-info-name entry)))
1082 (dump-push code-handle file)
1083 (dump-object name file)
1084 (dump-object (entry-info-arguments entry) file)
1085 (dump-object (entry-info-type entry) file)
1086 (dump-fop 'sb!impl::fop-function-entry file)
1087 (dump-unsigned-32 (label-position (entry-info-offset entry)) file)
1088 (let ((handle (dump-pop file)))
1089 (when (and name (or (symbolp name) (listp name)))
1090 (dump-object name file)
1091 (dump-push handle file)
1092 (dump-fop 'sb!impl::fop-fset file))
1095 ;;; Alter the code object referenced by Code-Handle at the specified Offset,
1096 ;;; storing the object referenced by Entry-Handle.
1097 (defun dump-alter-code-object (code-handle offset entry-handle file)
1098 (declare (type index code-handle entry-handle offset) (type fasl-file file))
1099 (dump-push code-handle file)
1100 (dump-push entry-handle file)
1102 sb!impl::fop-byte-alter-code
1103 sb!impl::fop-alter-code
1107 ;;; Dump the code, constants, etc. for component. We pass in the assembler
1108 ;;; fixups, code vector and node info.
1109 (defun fasl-dump-component (component
1115 (declare (type component component) (list trace-table) (type fasl-file file))
1117 (dump-fop 'sb!impl::fop-verify-empty-stack file)
1118 (dump-fop 'sb!impl::fop-verify-table-size file)
1119 (dump-unsigned-32 (fasl-file-table-free file) file)
1122 (let ((info (ir2-component-dyncount-info (component-info component))))
1124 (fasl-validate-structure info file)))
1126 (let ((code-handle (dump-code-object component
1132 (2comp (component-info component)))
1133 (dump-fop 'sb!impl::fop-verify-empty-stack file)
1135 (dolist (entry (ir2-component-entries 2comp))
1136 (let ((entry-handle (dump-one-entry entry code-handle file)))
1137 (setf (gethash entry (fasl-file-entry-table file)) entry-handle)
1139 (let ((old (gethash entry (fasl-file-patch-table file))))
1140 ;; KLUDGE: All this code is shared with FASL-DUMP-BYTE-COMPONENT,
1141 ;; and should probably be gathered up into a named function
1142 ;; (DUMP-PATCHES?) called from both functions.
1145 (dump-alter-code-object (car patch)
1149 (remhash entry (fasl-file-patch-table file)))))))
1152 (defun dump-byte-code-object (segment code-length constants file)
1153 (declare (type sb!assem:segment segment)
1154 (type index code-length)
1155 (type vector constants)
1156 (type fasl-file file))
1157 (collect ((entry-patches))
1159 ;; Dump the debug info.
1161 (let ((info (make-debug-info
1162 :name (component-name *component-being-compiled*)))
1163 (*dump-only-valid-structures* nil))
1164 (dump-object info file)
1165 (let ((info-handle (dump-pop file)))
1166 (dump-push info-handle file)
1167 (push info-handle (fasl-file-debug-info file))))
1169 ;; The "trace table" is initialized by loader to hold a list of all byte
1170 ;; functions in this code object (for debug info.)
1171 (dump-object nil file)
1173 ;; Dump the constants.
1174 (dotimes (i (length constants))
1175 (let ((entry (aref constants i)))
1178 (dump-object (constant-value entry) file))
1180 (dump-fop 'sb!impl::fop-misc-trap file))
1184 (let* ((info (leaf-info (cdr entry)))
1185 (handle (gethash info (fasl-file-entry-table file))))
1188 (dump-push handle file))
1190 (entry-patches (cons info
1191 (+ i sb!vm:code-constants-offset)))
1192 (dump-fop 'sb!impl::fop-misc-trap file)))))
1194 (dump-push (cdr entry) file))
1196 (dump-object (cdr entry) file)
1197 (dump-fop 'sb!impl::fop-fdefinition file))
1199 (dump-object 'load-type-predicate file)
1200 (let ((*unparse-function-type-simplify* t))
1201 (dump-object (type-specifier (cdr entry)) file))
1202 (dump-fop 'sb!impl::fop-funcall file)
1203 (dump-byte 1 file)))))))
1205 ;; Dump the debug info.
1207 (let ((info (make-debug-info :name
1208 (component-name *component-being-compiled*)))
1209 (*dump-only-valid-structures* nil))
1210 (dump-object info file)
1211 (let ((info-handle (dump-pop file)))
1212 (dump-push info-handle file)
1213 (push info-handle (fasl-file-debug-info file))))
1215 (let ((num-consts #!+gengc (+ (length constants) 2)
1216 #!-gengc (1+ (length constants)))
1217 (code-length #!+gengc (ceiling code-length 4)
1218 #!-gengc code-length))
1219 (cond ((and (< num-consts #x100) (< code-length #x10000))
1220 (dump-fop 'sb!impl::fop-small-code file)
1221 (dump-byte num-consts file)
1222 (dump-integer-as-n-bytes code-length 2 file))
1224 (dump-fop 'sb!impl::fop-code file)
1225 (dump-unsigned-32 num-consts file)
1226 (dump-unsigned-32 code-length file))))
1227 (dump-segment segment code-length file)
1228 (let ((code-handle (dump-pop file))
1229 (patch-table (fasl-file-patch-table file)))
1230 (dolist (patch (entry-patches))
1231 (push (cons code-handle (cdr patch))
1232 (gethash (car patch) patch-table)))
1235 ;;; Dump a BYTE-FUNCTION object. We dump the layout and
1236 ;;; funcallable-instance info, but rely on the loader setting up the correct
1237 ;;; funcallable-instance-function.
1238 (defun dump-byte-function (xep code-handle file)
1239 (let ((nslots (- (get-closure-length xep)
1241 (1- sb!vm:funcallable-instance-info-offset))))
1244 (dump-push code-handle file)
1245 (dump-object (%funcallable-instance-info xep i) file)))
1246 (dump-object (%funcallable-instance-layout xep) file)
1247 (dump-fop 'sb!impl::fop-make-byte-compiled-function file)
1248 (dump-byte nslots file))
1251 ;;; Dump a byte-component. This is similar to FASL-DUMP-COMPONENT, but
1253 (defun fasl-dump-byte-component (segment length constants xeps file)
1254 (declare (type sb!assem:segment segment)
1256 (type vector constants)
1258 (type fasl-file file))
1260 (let ((code-handle (dump-byte-code-object segment length constants file)))
1261 (dolist (noise xeps)
1262 (let* ((lambda (car noise))
1263 (info (lambda-info lambda))
1265 (dump-byte-function xep code-handle file)
1266 (let* ((entry-handle (dump-pop file))
1267 (patch-table (fasl-file-patch-table file))
1268 (old (gethash info patch-table)))
1269 (setf (gethash info (fasl-file-entry-table file)) entry-handle)
1272 (dump-alter-code-object (car patch)
1276 (remhash info patch-table))))))
1279 ;;; Dump a FOP-FUNCALL to call an already dumped top-level lambda at load time.
1280 (defun fasl-dump-top-level-lambda-call (fun file)
1281 (declare (type clambda fun) (type fasl-file file))
1282 (let ((handle (gethash (leaf-info fun) (fasl-file-entry-table file))))
1284 (dump-push handle file)
1285 (dump-fop 'sb!impl::fop-funcall-for-effect file)
1289 ;;; Compute the correct list of DEBUG-SOURCE structures and backpatch all of
1290 ;;; the dumped DEBUG-INFO structures. We clear the FASL-FILE-DEBUG-INFO,
1291 ;;; so that subsequent components with different source info may be dumped.
1292 (defun fasl-dump-source-info (info file)
1293 (declare (type source-info info) (type fasl-file file))
1294 (let ((res (debug-source-for-info info))
1295 (*dump-only-valid-structures* nil))
1296 (dump-object res file)
1297 (let ((res-handle (dump-pop file)))
1298 (dolist (info-handle (fasl-file-debug-info file))
1299 (dump-push res-handle file)
1300 (dump-fop 'sb!impl::fop-structset file)
1301 (dump-unsigned-32 info-handle file)
1302 (dump-unsigned-32 2 file))))
1304 (setf (fasl-file-debug-info file) ())
1307 ;;;; dumping structures
1309 (defun dump-structure (struct file)
1310 ;; FIXME: Probably *DUMP-ONLY-VALID-STRUCTURES* should become constantly T,
1312 (when *dump-only-valid-structures*
1313 (unless (gethash struct (fasl-file-valid-structures file))
1314 (error "attempt to dump invalid structure:~% ~S~%How did this happen?"
1316 (note-potential-circularity struct file)
1317 (do ((index 0 (1+ index))
1318 (length (%instance-length struct))
1319 (circ (fasl-file-circularity-table file)))
1322 sb!impl::fop-small-struct
1325 (let* ((obj (%instance-ref struct index))
1326 (ref (gethash obj circ)))
1328 (push (make-circularity :type :struct-set
1332 :enclosing-object ref)
1333 *circularities-detected*)
1334 (sub-dump-object nil file))
1336 (sub-dump-object obj file))))))
1338 (defun dump-layout (obj file)
1339 (when (layout-invalid obj)
1340 (compiler-error "attempt to dump reference to obsolete class: ~S"
1341 (layout-class obj)))
1342 (let ((name (sb!xc:class-name (layout-class obj))))
1344 (compiler-error "dumping anonymous layout: ~S" obj))
1345 (dump-fop 'sb!impl::fop-normal-load file)
1346 (let ((*cold-load-dump* t))
1347 (dump-object name file))
1348 (dump-fop 'sb!impl::fop-maybe-cold-load file))
1349 (sub-dump-object (layout-inherits obj) file)
1350 (sub-dump-object (layout-depthoid obj) file)
1351 (sub-dump-object (layout-length obj) file)
1352 (dump-fop 'sb!impl::fop-layout file))