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))))
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-file stream.
104 (defun dump-byte (b fasl-file)
105 (declare (type (unsigned-byte 8) b) (type fasl-file fasl-file))
106 (write-byte b (fasl-file-stream fasl-file)))
108 ;;; Dump a 4 byte unsigned integer.
109 (defun dump-unsigned-32 (num fasl-file)
110 (declare (type (unsigned-byte 32) num) (type fasl-file fasl-file))
111 (let ((stream (fasl-file-stream fasl-file)))
113 (write-byte (ldb (byte 8 (* 8 i)) num) stream))))
115 ;;; Dump NUM to the fasl stream, represented by N bytes. This works
116 ;;; for either signed or unsigned integers. There's no range checking
117 ;;; -- if you don't specify enough bytes for the number to fit, this
118 ;;; function cheerfully outputs the low bytes.
119 (defun dump-integer-as-n-bytes (num bytes file)
120 (declare (integer num) (type index bytes) (type fasl-file file))
121 (do ((n num (ash n -8))
124 (declare (type index i))
125 (dump-byte (logand n #xff) file))
128 ;;; Setting this variable to an (UNSIGNED-BYTE 32) value causes
129 ;;; DUMP-FOP to use it as a counter and emit a FOP-NOP4 with the
130 ;;; counter value before every ordinary fop. This can make it easier
131 ;;; to follow the progress of FASLOAD when
132 ;;; debugging/testing/experimenting.
133 #!+sb-show (defvar *fop-nop4-count* nil)
134 #!+sb-show (declaim (type (or (unsigned-byte 32) null) *fop-nop4-count*))
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
139 ;;; for the common constant-FS case. (Among other things, that'll stop
140 ;;; it from EVALing ,FILE multiple times.)
142 ;;; FIXME: Compiler macros, frozen classes, inlining, and similar
143 ;;; optimizations 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
157 ;;; based on whether the argument will fit in a single byte.
159 ;;; FIXME: This, like DUMP-FOP, should be a function with a
160 ;;; compiler-macro expansion.
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
248 ;;; for dumping to it. Some human-readable information about the
249 ;;; source code is given by the string WHERE. If BYTE-P is true, this
250 ;;; file will contain no native code, and is thus largely
251 ;;; implementation independent.
252 (defun open-fasl-file (name where &optional byte-p)
253 (declare (type pathname name))
254 (let* ((stream (open name
256 :if-exists :new-version
257 :element-type 'sb!assem:assembly-unit))
258 (res (make-fasl-file :stream stream)))
260 ;; Begin the header with the constant machine-readable (and
261 ;; semi-human-readable) string which is used to identify fasl files.
262 (write-string sb!c:*fasl-header-string-start-string* stream)
264 ;; The constant string which begins the header is followed by
265 ;; arbitrary human-readable text, terminated by a special
267 (with-standard-io-syntax
273 using ~A version ~A~%"
275 (format-universal-time nil (get-universal-time))
277 (sb!xc:lisp-implementation-type)
278 (sb!xc:lisp-implementation-version)))
279 (dump-byte sb!c:*fasl-header-string-stop-char-code* res)
281 ;; Finish the header by outputting fasl file implementation and
282 ;; version in machine-readable form.
283 (multiple-value-bind (implementation version)
285 (values *backend-byte-order*
286 byte-fasl-file-version)
287 (values *backend-fasl-file-implementation*
288 *backend-fasl-file-version*))
289 (dump-unsigned-32 (length (symbol-name implementation)) res)
290 (dotimes (i (length (symbol-name implementation)))
291 (dump-byte (char-code (aref (symbol-name implementation) i)) res))
292 (dump-unsigned-32 version res))
296 ;;; Close the specified FASL-FILE, aborting the write if ABORT-P.
297 ;;; We do various sanity checks, then end the group.
298 (defun close-fasl-file (file abort-p)
299 (declare (type fasl-file file))
300 (assert (zerop (hash-table-count (fasl-file-patch-table file))))
301 (dump-fop 'sb!impl::fop-verify-empty-stack file)
302 (dump-fop 'sb!impl::fop-verify-table-size file)
303 (dump-unsigned-32 (fasl-file-table-free file) file)
304 (dump-fop 'sb!impl::fop-end-group file)
305 (close (fasl-file-stream file) :abort abort-p)
308 ;;;; main entries to object dumping
310 ;;; KLUDGE: This definition doesn't really belong in this file, but at
311 ;;; least it can be compiled without error here, and it's used here.
312 ;;; The definition requires the IGNORE-ERRORS macro, and in
313 ;;; sbcl-0.6.8.11 that's defined in early-target-error.lisp, and all
314 ;;; of the files which would otherwise be natural homes for this
315 ;;; definition (e.g. early-extensions.lisp or late-extensions.lisp)
316 ;;; are compiled before early-target-error.lisp. -- WHN 2000-11-07
317 (defun circular-list-p (list)
319 (multiple-value-bind (res condition)
320 (ignore-errors (list-length list))
325 ;;; This function deals with dumping objects that are complex enough
326 ;;; so that we want to cache them in the table, rather than repeatedly
327 ;;; dumping them. If the object is in the EQ-TABLE, then we push it,
328 ;;; otherwise, we do a type dispatch to a type specific dumping
329 ;;; function. The type specific branches do any appropriate
330 ;;; EQUAL-TABLE check and table entry.
332 ;;; When we go to dump the object, we enter it in the CIRCULARITY-TABLE.
333 (defun dump-non-immediate-object (x file)
334 (let ((index (gethash x (fasl-file-eq-table file))))
335 (cond ((and index (not *cold-load-dump*))
336 (dump-push index file))
339 (symbol (dump-symbol x file))
341 ;; KLUDGE: The code in this case has been hacked
342 ;; to match Douglas Crosher's quick fix to CMU CL
343 ;; (on cmucl-imp 1999-12-27), applied in sbcl-0.6.8.11
344 ;; with help from Martin Atzmueller. This is not an
345 ;; ideal solution; to quote DTC,
346 ;; The compiler locks up trying to coalesce the
347 ;; constant lists. The hack below will disable the
348 ;; coalescing of lists while dumping and allows
349 ;; the code to compile. The real fix would be to
350 ;; take a little more care while dumping these.
351 ;; So if better list coalescing is needed, start here.
353 (if (circular-list-p x)
356 (eq-save-object x file))
357 (unless (equal-check-table x file)
359 (equal-save-object x file))))
362 (eq-save-object x file))
364 (dump-structure x file)
365 (eq-save-object x file))
367 ;; FIXME: The comment at the head of
368 ;; DUMP-NON-IMMEDIATE-OBJECT says it's for objects which
369 ;; we want to save, instead of repeatedly dumping them.
370 ;; But then we dump arrays here without doing anything
371 ;; like EQUAL-SAVE-OBJECT. What gives?
374 (unless (equal-check-table x file)
376 (ratio (dump-ratio x file))
377 (complex (dump-complex x file))
378 (float (dump-float x file))
379 (integer (dump-integer x file)))
380 (equal-save-object x file)))
382 ;; This probably never happens, since bad things tend to
383 ;; be detected during IR1 conversion.
384 (error "This object cannot be dumped into a fasl file:~% ~S"
388 ;;; Dump an object of any type by dispatching to the correct
389 ;;; type-specific dumping function. We pick off immediate objects,
390 ;;; symbols and and magic lists here. Other objects are handled by
391 ;;; DUMP-NON-IMMEDIATE-OBJECT.
393 ;;; This is the function used for recursive calls to the fasl dumper.
394 ;;; We don't worry about creating circularities here, since it is
395 ;;; assumed that there is a top-level call to DUMP-OBJECT.
396 (defun sub-dump-object (x file)
399 (dump-non-immediate-object x file)
400 (dump-fop 'sb!impl::fop-empty-list file)))
403 (dump-fop 'sb!impl::fop-truth file)
404 (dump-non-immediate-object x file)))
405 ((target-fixnump x) (dump-integer x file))
406 ((characterp x) (dump-character x file))
408 (dump-non-immediate-object x file))))
410 ;;; Dump stuff to backpatch already dumped objects. INFOS is the list
411 ;;; of CIRCULARITY structures describing what to do. The patching FOPs
412 ;;; take the value to store on the stack. We compute this value by
413 ;;; fetching the enclosing object from the table, and then CDR'ing it
415 (defun dump-circularities (infos file)
416 (let ((table (fasl-file-eq-table file)))
418 (let* ((value (circularity-value info))
419 (enclosing (circularity-enclosing-object info)))
420 (dump-push (gethash enclosing table) file)
421 (unless (eq enclosing value)
422 (do ((current enclosing (cdr current))
425 (dump-fop 'sb!impl::fop-nthcdr file)
426 (dump-unsigned-32 i file))
427 (declare (type index i)))))
429 (ecase (circularity-type info)
430 (:rplaca (dump-fop 'sb!impl::fop-rplaca file))
431 (:rplacd (dump-fop 'sb!impl::fop-rplacd file))
432 (:svset (dump-fop 'sb!impl::fop-svset file))
433 (:struct-set (dump-fop 'sb!impl::fop-structset file)))
434 (dump-unsigned-32 (gethash (circularity-object info) table) file)
435 (dump-unsigned-32 (circularity-index info) file))))
437 ;;; Set up stuff for circularity detection, then dump an object. All
438 ;;; shared and circular structure will be exactly preserved within a
439 ;;; single call to Dump-Object. Sharing between objects dumped by
440 ;;; separate calls is only preserved when convenient.
442 ;;; We peek at the object type so that we only pay the circular
443 ;;; detection overhead on types of objects that might be circular.
444 (defun dump-object (x file)
445 (if (or (array-header-p x)
449 (let ((*circularities-detected* ())
450 (circ (fasl-file-circularity-table file)))
452 (sub-dump-object x file)
453 (when *circularities-detected*
454 (dump-circularities *circularities-detected* file)
456 (sub-dump-object x file)))
458 ;;;; LOAD-TIME-VALUE and MAKE-LOAD-FORM support
460 ;;; Emit a funcall of the function and return the handle for the
462 (defun fasl-dump-load-time-value-lambda (fun file)
463 (declare (type clambda fun) (type fasl-file file))
464 (let ((handle (gethash (leaf-info fun) (fasl-file-entry-table file))))
466 (dump-push handle file)
467 (dump-fop 'sb!impl::fop-funcall file)
471 ;;; Return T iff CONSTANT has not already been dumped. It's been
472 ;;; dumped if it's in the EQ table.
473 (defun fasl-constant-already-dumped (constant file)
474 (if (or (gethash constant (fasl-file-eq-table file))
475 (gethash constant (fasl-file-valid-structures file)))
479 ;;; Use HANDLE whenever we try to dump CONSTANT. HANDLE should have been
480 ;;; returned earlier by FASL-DUMP-LOAD-TIME-VALUE-LAMBDA.
481 (defun fasl-note-handle-for-constant (constant handle file)
482 (let ((table (fasl-file-eq-table file)))
483 (when (gethash constant table)
484 (error "~S already dumped?" constant))
485 (setf (gethash constant table) handle))
488 ;;; Note that the specified structure can just be dumped by
489 ;;; enumerating the slots.
490 (defun fasl-validate-structure (structure file)
491 (setf (gethash structure (fasl-file-valid-structures file)) t)
498 (defun dump-ratio (x file)
499 (sub-dump-object (numerator x) file)
500 (sub-dump-object (denominator x) file)
501 (dump-fop 'sb!impl::fop-ratio file))
505 (defun dump-integer (n file)
508 (dump-fop 'sb!impl::fop-byte-integer file)
509 (dump-byte (logand #xFF n) file))
511 (dump-fop 'sb!impl::fop-word-integer file)
512 (dump-unsigned-32 n file))
514 (dump-fop 'sb!impl::fop-word-integer file)
515 (dump-integer-as-n-bytes n 4 file))
517 (let ((bytes (ceiling (1+ (integer-length n)) 8)))
519 sb!impl::fop-small-integer
522 (dump-integer-as-n-bytes n bytes file)))))
524 (defun dump-float (x file)
527 (dump-fop 'sb!impl::fop-single-float file)
528 (dump-integer-as-n-bytes (single-float-bits x) 4 file))
530 (dump-fop 'sb!impl::fop-double-float file)
532 (declare (double-float x))
533 ;; FIXME: Why sometimes DUMP-UNSIGNED-32 and sometimes
534 ;; DUMP-INTEGER-AS-N-BYTES .. 4?
535 (dump-unsigned-32 (double-float-low-bits x) file)
536 (dump-integer-as-n-bytes (double-float-high-bits x) 4 file)))
539 (dump-fop 'sb!impl::fop-long-float file)
540 (dump-long-float x file))))
542 (defun dump-complex (x file)
545 ((complex single-float)
546 (dump-fop 'sb!impl::fop-complex-single-float file)
547 (dump-integer-as-n-bytes (single-float-bits (realpart x)) 4 file)
548 (dump-integer-as-n-bytes (single-float-bits (imagpart x)) 4 file))
550 ((complex double-float)
551 (dump-fop 'sb!impl::fop-complex-double-float file)
552 (let ((re (realpart x)))
553 (declare (double-float re))
554 (dump-unsigned-32 (double-float-low-bits re) file)
555 (dump-integer-as-n-bytes (double-float-high-bits re) 4 file))
556 (let ((im (imagpart x)))
557 (declare (double-float im))
558 (dump-unsigned-32 (double-float-low-bits im) file)
559 (dump-integer-as-n-bytes (double-float-high-bits im) 4 file)))
560 #!+(and long-float (not sb-xc))
561 ((complex long-float)
562 (dump-fop 'sb!impl::fop-complex-long-float file)
563 (dump-long-float (realpart x) file)
564 (dump-long-float (imagpart x) file))
566 (sub-dump-object (realpart x) file)
567 (sub-dump-object (imagpart x) file)
568 (dump-fop 'sb!impl::fop-complex file))))
572 ;;; Return the table index of PKG, adding the package to the table if
573 ;;; necessary. During cold load, we read the string as a normal string
574 ;;; so that we can do the package lookup at cold load time.
576 ;;; FIXME: Despite the parallelism in names, the functionality of
577 ;;; this function is not parallel to other functions DUMP-FOO, e.g.
578 ;;; DUMP-SYMBOL and DUMP-LIST. The mapping between names and behavior
579 ;;; should be made more consistent.
580 (defun dump-package (pkg file)
581 (declare (type package pkg) (type fasl-file file) (values index)
583 (cond ((cdr (assoc pkg (fasl-file-packages file) :test #'eq)))
585 (unless *cold-load-dump*
586 (dump-fop 'sb!impl::fop-normal-load file))
587 (dump-simple-string (package-name pkg) file)
588 (dump-fop 'sb!impl::fop-package file)
589 (unless *cold-load-dump*
590 (dump-fop 'sb!impl::fop-maybe-cold-load file))
591 (let ((entry (dump-pop file)))
592 (push (cons pkg entry) (fasl-file-packages file))
597 ;;; Dump a list, setting up patching information when there are
598 ;;; circularities. We scan down the list, checking for CDR and CAR
601 ;;; If there is a CDR circularity, we terminate the list with NIL and
602 ;;; make a CIRCULARITY notation for the CDR of the previous cons.
604 ;;; If there is no CDR circularity, then we mark the current cons and
605 ;;; check for a CAR circularity. When there is a CAR circularity, we
606 ;;; make the CAR NIL initially, arranging for the current cons to be
609 ;;; Otherwise, we recursively call the dumper to dump the current
612 ;;; Marking of the conses is inhibited when *COLD-LOAD-DUMP* is true.
613 ;;; This inhibits all circularity detection.
614 (defun dump-list (list file)
616 (not (gethash list (fasl-file-circularity-table file)))))
617 (do* ((l list (cdr l))
619 (circ (fasl-file-circularity-table file)))
622 (terminate-undotted-list n file))
624 (sub-dump-object l file)
625 (terminate-dotted-list n file))))
626 (declare (type index n))
627 (let ((ref (gethash l circ)))
629 (push (make-circularity :type :rplacd
633 :enclosing-object ref)
634 *circularities-detected*)
635 (terminate-undotted-list n file)
638 (unless *cold-load-dump*
639 (setf (gethash l circ) list))
642 (ref (gethash obj circ)))
644 (push (make-circularity :type :rplaca
648 :enclosing-object ref)
649 *circularities-detected*)
650 (sub-dump-object nil file))
652 (sub-dump-object obj file))))))
654 (defun terminate-dotted-list (n file)
655 (declare (type index n) (type fasl-file file))
657 (1 (dump-fop 'sb!impl::fop-list*-1 file))
658 (2 (dump-fop 'sb!impl::fop-list*-2 file))
659 (3 (dump-fop 'sb!impl::fop-list*-3 file))
660 (4 (dump-fop 'sb!impl::fop-list*-4 file))
661 (5 (dump-fop 'sb!impl::fop-list*-5 file))
662 (6 (dump-fop 'sb!impl::fop-list*-6 file))
663 (7 (dump-fop 'sb!impl::fop-list*-7 file))
664 (8 (dump-fop 'sb!impl::fop-list*-8 file))
665 (T (do ((nn n (- nn 255)))
667 (dump-fop 'sb!impl::fop-list* file)
669 (declare (type index nn))
670 (dump-fop 'sb!impl::fop-list* file)
671 (dump-byte 255 file)))))
673 ;;; If N > 255, must build list with one LIST operator, then LIST*
676 (defun terminate-undotted-list (n file)
677 (declare (type index n) (type fasl-file file))
679 (1 (dump-fop 'sb!impl::fop-list-1 file))
680 (2 (dump-fop 'sb!impl::fop-list-2 file))
681 (3 (dump-fop 'sb!impl::fop-list-3 file))
682 (4 (dump-fop 'sb!impl::fop-list-4 file))
683 (5 (dump-fop 'sb!impl::fop-list-5 file))
684 (6 (dump-fop 'sb!impl::fop-list-6 file))
685 (7 (dump-fop 'sb!impl::fop-list-7 file))
686 (8 (dump-fop 'sb!impl::fop-list-8 file))
688 (dump-fop 'sb!impl::fop-list file)
690 (t (dump-fop 'sb!impl::fop-list file)
692 (do ((nn (- n 255) (- nn 255)))
694 (dump-fop 'sb!impl::fop-list* file)
696 (declare (type index nn))
697 (dump-fop 'sb!impl::fop-list* file)
698 (dump-byte 255 file)))))))
702 ;;; Dump the array thing.
703 (defun dump-array (x file)
706 (dump-multi-dim-array x file)))
708 ;;; Dump the vector object. If it's not simple, then actually dump a
709 ;;; simple version of it. But we enter the original in the EQ or EQUAL
711 (defun dump-vector (x file)
712 (let ((simple-version (if (array-header-p x)
713 (coerce x 'simple-array)
715 (typecase simple-version
717 (unless (equal-check-table x file)
718 (dump-simple-string simple-version file)
719 (equal-save-object x file)))
721 (dump-simple-vector simple-version file)
722 (eq-save-object x file))
723 ((simple-array single-float (*))
724 (dump-single-float-vector simple-version file)
725 (eq-save-object x file))
726 ((simple-array double-float (*))
727 (dump-double-float-vector simple-version file)
728 (eq-save-object x file))
730 ((simple-array long-float (*))
731 (dump-long-float-vector simple-version file)
732 (eq-save-object x file))
733 ((simple-array (complex single-float) (*))
734 (dump-complex-single-float-vector simple-version file)
735 (eq-save-object x file))
736 ((simple-array (complex double-float) (*))
737 (dump-complex-double-float-vector simple-version file)
738 (eq-save-object x file))
740 ((simple-array (complex long-float) (*))
741 (dump-complex-long-float-vector simple-version file)
742 (eq-save-object x file))
744 (dump-i-vector simple-version file)
745 (eq-save-object x file)))))
747 ;;; Dump a SIMPLE-VECTOR, handling any circularities.
748 (defun dump-simple-vector (v file)
749 (declare (type simple-vector v) (type fasl-file file))
750 (note-potential-circularity v file)
751 (do ((index 0 (1+ index))
753 (circ (fasl-file-circularity-table file)))
756 sb!impl::fop-small-vector
759 (let* ((obj (aref v index))
760 (ref (gethash obj circ)))
762 (push (make-circularity :type :svset
766 :enclosing-object ref)
767 *circularities-detected*)
768 (sub-dump-object nil file))
770 (sub-dump-object obj file))))))
772 (defun dump-i-vector (vec file &key data-only)
773 (declare (type (simple-array * (*)) vec))
774 (let ((len (length vec)))
775 (labels ((dump-unsigned-vector (size bytes)
777 (dump-fop 'sb!impl::fop-int-vector file)
778 (dump-unsigned-32 len file)
779 (dump-byte size file))
780 ;; The case which is easy to handle in a portable way is when
781 ;; the element size is a multiple of the output byte size, and
782 ;; happily that's the only case we need to be portable. (The
783 ;; cross-compiler has to output debug information (including
784 ;; (SIMPLE-ARRAY (UNSIGNED-BYTE 8) *).) The other cases are only
785 ;; needed in the target SBCL, so we let them be handled with
786 ;; unportable bit bashing.
787 (cond ((>= size 8) ; easy cases
788 (multiple-value-bind (floor rem) (floor size 8)
791 (dump-integer-as-n-bytes i floor file))))
792 (t ; harder cases, not supported in cross-compiler
793 (dump-raw-bytes vec bytes file))))
794 (dump-signed-vector (size bytes)
795 ;; Note: Dumping specialized signed vectors isn't
796 ;; supported in the cross-compiler. (All cases here end
797 ;; up trying to call DUMP-RAW-BYTES, which isn't
798 ;; provided in the cross-compilation host, only on the
801 (dump-fop 'sb!impl::fop-signed-int-vector file)
802 (dump-unsigned-32 len file)
803 (dump-byte size file))
804 (dump-raw-bytes vec bytes file)))
806 ;; KLUDGE: What exactly does the (ASH .. -3) stuff do? -- WHN 19990902
808 (dump-unsigned-vector 1 (ash (+ (the index len) 7) -3)))
809 ((simple-array (unsigned-byte 2) (*))
810 (dump-unsigned-vector 2 (ash (+ (the index (ash len 1)) 7) -3)))
811 ((simple-array (unsigned-byte 4) (*))
812 (dump-unsigned-vector 4 (ash (+ (the index (ash len 2)) 7) -3)))
813 ((simple-array (unsigned-byte 8) (*))
814 (dump-unsigned-vector 8 len))
815 ((simple-array (unsigned-byte 16) (*))
816 (dump-unsigned-vector 16 (* 2 len)))
817 ((simple-array (unsigned-byte 32) (*))
818 (dump-unsigned-vector 32 (* 4 len)))
819 ((simple-array (signed-byte 8) (*))
820 (dump-signed-vector 8 len))
821 ((simple-array (signed-byte 16) (*))
822 (dump-signed-vector 16 (* 2 len)))
823 ((simple-array (signed-byte 30) (*))
824 (dump-signed-vector 30 (* 4 len)))
825 ((simple-array (signed-byte 32) (*))
826 (dump-signed-vector 32 (* 4 len)))))))
828 ;;; Dump characters and string-ish things.
830 (defun dump-character (ch file)
831 (dump-fop 'sb!impl::fop-short-character file)
832 (dump-byte (char-code ch) file))
834 ;;; a helper function shared by DUMP-SIMPLE-STRING and DUMP-SYMBOL
835 (defun dump-characters-of-string (s fasl-file)
836 (declare (type string s) (type fasl-file fasl-file))
838 (dump-byte (char-code c) fasl-file))
841 ;;; Dump a SIMPLE-BASE-STRING.
842 ;;; FIXME: should be called DUMP-SIMPLE-BASE-STRING then
843 (defun dump-simple-string (s file)
844 (declare (type simple-base-string s))
845 (dump-fop* (length s)
846 sb!impl::fop-small-string
849 (dump-characters-of-string s file)
852 ;;; If we get here, it is assumed that the symbol isn't in the table,
853 ;;; but we are responsible for putting it there when appropriate. To
854 ;;; avoid too much special-casing, we always push the symbol in the
855 ;;; table, but don't record that we have done so if *COLD-LOAD-DUMP*
857 (defun dump-symbol (s file)
858 (let* ((pname (symbol-name s))
859 (pname-length (length pname))
860 (pkg (symbol-package s)))
863 (dump-fop* pname-length
864 sb!impl::fop-uninterned-small-symbol-save
865 sb!impl::fop-uninterned-symbol-save
867 ;; CMU CL had FOP-SYMBOL-SAVE/FOP-SMALL-SYMBOL-SAVE fops which
868 ;; used the current value of *PACKAGE*. Unfortunately that's
869 ;; broken w.r.t. ANSI Common Lisp semantics, so those are gone
871 ;;((eq pkg *package*)
872 ;; (dump-fop* pname-length
873 ;; sb!impl::fop-small-symbol-save
874 ;; sb!impl::fop-symbol-save file))
875 ((eq pkg sb!int:*cl-package*)
876 (dump-fop* pname-length
877 sb!impl::fop-lisp-small-symbol-save
878 sb!impl::fop-lisp-symbol-save
880 ((eq pkg sb!int:*keyword-package*)
881 (dump-fop* pname-length
882 sb!impl::fop-keyword-small-symbol-save
883 sb!impl::fop-keyword-symbol-save
885 ((< pname-length 256)
886 (dump-fop* (dump-package pkg file)
887 sb!impl::fop-small-symbol-in-byte-package-save
888 sb!impl::fop-small-symbol-in-package-save
890 (dump-byte pname-length file))
892 (dump-fop* (dump-package pkg file)
893 sb!impl::fop-symbol-in-byte-package-save
894 sb!impl::fop-symbol-in-package-save
896 (dump-unsigned-32 pname-length file)))
898 (dump-characters-of-string pname file)
900 (unless *cold-load-dump*
901 (setf (gethash s (fasl-file-eq-table file))
902 (fasl-file-table-free file)))
904 (incf (fasl-file-table-free file)))
908 ;;;; component (function) dumping
910 (defun dump-segment (segment code-length fasl-file)
911 (declare (type sb!assem:segment segment)
912 (type fasl-file fasl-file))
913 (let* ((stream (fasl-file-stream fasl-file))
914 (nwritten (write-segment-contents segment stream)))
915 ;; In CMU CL there was no enforced connection between the CODE-LENGTH
916 ;; argument and the number of bytes actually written. I added this
917 ;; assertion while trying to debug portable genesis. -- WHN 19990902
918 (unless (= code-length nwritten)
919 (error "internal error, code-length=~D, nwritten=~D"
922 ;; KLUDGE: It's not clear what this is trying to do, but it looks as
923 ;; though it's an implicit undocumented dependence on a 4-byte
924 ;; wordsize which could be painful in porting. Note also that there
925 ;; are other undocumented modulo-4 things scattered throughout the
926 ;; code and conditionalized with GENGC, and I don't know what those
927 ;; do either. -- WHN 19990323
928 #!+gengc (unless (zerop (logand code-length 3))
929 (dotimes (i (- 4 (logand code-length 3)))
930 (dump-byte 0 fasl-file)))
933 ;;; Dump all the fixups. Currently there are three flavors of fixup:
934 ;;; - assembly routines: named by a symbol
935 ;;; - foreign (C) symbols: named by a string
936 ;;; - code object references: don't need a name.
937 (defun dump-fixups (fixups fasl-file)
938 (declare (list fixups) (type fasl-file fasl-file))
939 (dolist (info fixups)
940 ;; FIXME: Packing data with LIST in NOTE-FIXUP and unpacking them
941 ;; with FIRST, SECOND, and THIRD here is hard to follow and
942 ;; maintain. Perhaps we could define a FIXUP-INFO structure to use
943 ;; instead, and rename *FIXUPS* to *FIXUP-INFO-LIST*?
944 (let* ((kind (first info))
945 (fixup (second info))
946 (name (fixup-name fixup))
947 (flavor (fixup-flavor fixup))
948 (offset (third info)))
949 ;; FIXME: This OFFSET is not what's called OFFSET in the FIXUP
950 ;; structure, it's what's called POSN in NOTE-FIXUP. (As far as
951 ;; I can tell, FIXUP-OFFSET is not actually an offset, it's an
952 ;; internal label used instead of NAME for :CODE-OBJECT fixups.
953 ;; Notice that in the :CODE-OBJECT case, NAME is ignored.)
954 (dump-fop 'sb!impl::fop-normal-load fasl-file)
955 (let ((*cold-load-dump* t))
956 (dump-object kind fasl-file))
957 (dump-fop 'sb!impl::fop-maybe-cold-load fasl-file)
958 ;; Depending on the flavor, we may have various kinds of
959 ;; noise before the offset.
962 (assert (symbolp name))
963 (dump-fop 'sb!impl::fop-normal-load fasl-file)
964 (let ((*cold-load-dump* t))
965 (dump-object name fasl-file))
966 (dump-fop 'sb!impl::fop-maybe-cold-load fasl-file)
967 (dump-fop 'sb!impl::fop-assembler-fixup fasl-file))
969 (assert (stringp name))
970 (dump-fop 'sb!impl::fop-foreign-fixup fasl-file)
971 (let ((len (length name)))
972 (assert (< len 256)) ; (limit imposed by fop definition)
973 (dump-byte len fasl-file)
975 (dump-byte (char-code (schar name i)) fasl-file))))
978 (dump-fop 'sb!impl::fop-code-object-fixup fasl-file)))
979 ;; No matter what the flavor, we'll always dump the offset.
980 (dump-unsigned-32 offset fasl-file)))
983 ;;; Dump out the constant pool and code-vector for component, push the
984 ;;; result in the table, and return the offset.
986 ;;; The only tricky thing is handling constant-pool references to
987 ;;; functions. If we have already dumped the function, then we just
988 ;;; push the code pointer. Otherwise, we must create back-patching
989 ;;; information so that the constant will be set when the function is
990 ;;; eventually dumped. This is a bit awkward, since we don't have the
991 ;;; handle for the code object being dumped while we are dumping its
994 ;;; We dump trap objects in any unused slots or forward referenced slots.
995 (defun dump-code-object (component
1002 (declare (type component component)
1003 (list trace-table-as-list)
1004 (type index code-length)
1005 (type fasl-file fasl-file))
1007 (let* ((2comp (component-info component))
1008 (constants (ir2-component-constants 2comp))
1009 (header-length (length constants))
1010 (packed-trace-table (pack-trace-table trace-table-as-list))
1011 (total-length (+ code-length
1012 (* (length packed-trace-table) tt-bytes-per-entry))))
1014 (collect ((patches))
1016 ;; Dump the debug info.
1018 (let ((info (debug-info-for-component component))
1019 (*dump-only-valid-structures* nil))
1020 (dump-object info fasl-file)
1021 (let ((info-handle (dump-pop fasl-file)))
1022 (dump-push info-handle fasl-file)
1023 (push info-handle (fasl-file-debug-info fasl-file))))
1025 ;; Dump the offset of the trace table.
1026 (dump-object code-length fasl-file)
1027 ;; FIXME: As long as we don't have GENGC, the trace table is
1028 ;; hardwired to be empty. So we might be able to get rid of
1029 ;; trace tables? However, we should probably wait for the first
1030 ;; port to a system where CMU CL uses GENGC to see whether GENGC
1031 ;; is really gone. (I.e. maybe other non-X86 ports will want to
1032 ;; use it, just as in CMU CL.)
1034 ;; Dump the constants, noting any :entries that have to be fixed up.
1035 (do ((i sb!vm:code-constants-offset (1+ i)))
1036 ((>= i header-length))
1037 (let ((entry (aref constants i)))
1040 (dump-object (constant-value entry) fasl-file))
1044 (let* ((info (leaf-info (cdr entry)))
1045 (handle (gethash info
1046 (fasl-file-entry-table fasl-file))))
1049 (dump-push handle fasl-file))
1051 (patches (cons info i))
1052 (dump-fop 'sb!impl::fop-misc-trap fasl-file)))))
1054 (dump-push (cdr entry) fasl-file))
1056 (dump-object (cdr entry) fasl-file)
1057 (dump-fop 'sb!impl::fop-fdefinition fasl-file))))
1059 (dump-fop 'sb!impl::fop-misc-trap fasl-file)))))
1061 ;; Dump the debug info.
1063 (let ((info (debug-info-for-component component))
1064 (*dump-only-valid-structures* nil))
1065 (dump-object info fasl-file)
1066 (let ((info-handle (dump-pop fasl-file)))
1067 (dump-push info-handle fasl-file)
1068 (push info-handle (fasl-file-debug-info fasl-file))))
1070 (let ((num-consts #!+gengc (- header-length
1071 sb!vm:code-debug-info-slot)
1072 #!-gengc (- header-length
1073 sb!vm:code-trace-table-offset-slot))
1074 (total-length #!+gengc (ceiling total-length 4)
1075 #!-gengc total-length))
1076 (cond ((and (< num-consts #x100) (< total-length #x10000))
1077 (dump-fop 'sb!impl::fop-small-code fasl-file)
1078 (dump-byte num-consts fasl-file)
1079 (dump-integer-as-n-bytes total-length 2 fasl-file))
1081 (dump-fop 'sb!impl::fop-code fasl-file)
1082 (dump-unsigned-32 num-consts fasl-file)
1083 (dump-unsigned-32 total-length fasl-file))))
1085 ;; These two dumps are only ones which contribute to our
1086 ;; TOTAL-LENGTH value.
1087 (dump-segment code-segment code-length fasl-file)
1088 (dump-i-vector packed-trace-table fasl-file :data-only t)
1090 ;; DUMP-FIXUPS does its own internal DUMP-FOPs: the bytes it
1091 ;; dumps aren't included in the TOTAL-LENGTH passed to our
1092 ;; FOP-CODE/FOP-SMALL-CODE fop.
1093 (dump-fixups fixups fasl-file)
1095 (dump-fop 'sb!impl::fop-sanctify-for-execution fasl-file)
1096 (let ((handle (dump-pop fasl-file)))
1097 (dolist (patch (patches))
1098 (push (cons handle (cdr patch))
1099 (gethash (car patch) (fasl-file-patch-table fasl-file))))
1102 (defun dump-assembler-routines (code-segment length fixups routines file)
1103 (dump-fop 'sb!impl::fop-assembler-code file)
1104 (dump-unsigned-32 #!+gengc (ceiling length 4)
1107 (write-segment-contents code-segment (fasl-file-stream file))
1108 (dolist (routine routines)
1109 (dump-fop 'sb!impl::fop-normal-load file)
1110 (let ((*cold-load-dump* t))
1111 (dump-object (car routine) file))
1112 (dump-fop 'sb!impl::fop-maybe-cold-load file)
1113 (dump-fop 'sb!impl::fop-assembler-routine file)
1114 (dump-unsigned-32 (label-position (cdr routine)) file))
1115 (dump-fixups fixups file)
1116 (dump-fop 'sb!impl::fop-sanctify-for-execution file)
1119 ;;; Dump a function-entry data structure corresponding to ENTRY to
1120 ;;; FILE. CODE-HANDLE is the table offset of the code object for the
1123 ;;; If the entry is a DEFUN, then we also dump a FOP-FSET so that the
1124 ;;; cold loader can instantiate the definition at cold-load time,
1125 ;;; allowing forward references to functions in top-level forms.
1126 (defun dump-one-entry (entry code-handle file)
1127 (declare (type entry-info entry) (type index code-handle)
1128 (type fasl-file file))
1129 (let ((name (entry-info-name entry)))
1130 (dump-push code-handle file)
1131 (dump-object name file)
1132 (dump-object (entry-info-arguments entry) file)
1133 (dump-object (entry-info-type entry) file)
1134 (dump-fop 'sb!impl::fop-function-entry file)
1135 (dump-unsigned-32 (label-position (entry-info-offset entry)) file)
1136 (let ((handle (dump-pop file)))
1137 (when (and name (or (symbolp name) (listp name)))
1138 (dump-object name file)
1139 (dump-push handle file)
1140 (dump-fop 'sb!impl::fop-fset file))
1143 ;;; Alter the code object referenced by CODE-HANDLE at the specified
1144 ;;; OFFSET, storing the object referenced by ENTRY-HANDLE.
1145 (defun dump-alter-code-object (code-handle offset entry-handle file)
1146 (declare (type index code-handle entry-handle offset) (type fasl-file file))
1147 (dump-push code-handle file)
1148 (dump-push entry-handle file)
1150 sb!impl::fop-byte-alter-code
1151 sb!impl::fop-alter-code
1155 ;;; Dump the code, constants, etc. for component. We pass in the
1156 ;;; assembler fixups, code vector and node info.
1157 (defun fasl-dump-component (component
1163 (declare (type component component) (list trace-table) (type fasl-file file))
1165 (dump-fop 'sb!impl::fop-verify-empty-stack file)
1166 (dump-fop 'sb!impl::fop-verify-table-size file)
1167 (dump-unsigned-32 (fasl-file-table-free file) file)
1170 (let ((info (ir2-component-dyncount-info (component-info component))))
1172 (fasl-validate-structure info file)))
1174 (let ((code-handle (dump-code-object component
1180 (2comp (component-info component)))
1181 (dump-fop 'sb!impl::fop-verify-empty-stack file)
1183 (dolist (entry (ir2-component-entries 2comp))
1184 (let ((entry-handle (dump-one-entry entry code-handle file)))
1185 (setf (gethash entry (fasl-file-entry-table file)) entry-handle)
1187 (let ((old (gethash entry (fasl-file-patch-table file))))
1188 ;; FIXME: All this code is shared with
1189 ;; FASL-DUMP-BYTE-COMPONENT, and should probably be gathered
1190 ;; up into a named function (DUMP-PATCHES?) called from both
1194 (dump-alter-code-object (car patch)
1198 (remhash entry (fasl-file-patch-table file)))))))
1201 (defun dump-byte-code-object (segment code-length constants file)
1202 (declare (type sb!assem:segment segment)
1203 (type index code-length)
1204 (type vector constants)
1205 (type fasl-file file))
1206 (collect ((entry-patches))
1208 ;; Dump the debug info.
1210 (let ((info (make-debug-info
1211 :name (component-name *component-being-compiled*)))
1212 (*dump-only-valid-structures* nil))
1213 (dump-object info file)
1214 (let ((info-handle (dump-pop file)))
1215 (dump-push info-handle file)
1216 (push info-handle (fasl-file-debug-info file))))
1218 ;; The "trace table" is initialized by loader to hold a list of
1219 ;; all byte functions in this code object (for debug info.)
1220 (dump-object nil file)
1222 ;; Dump the constants.
1223 (dotimes (i (length constants))
1224 (let ((entry (aref constants i)))
1227 (dump-object (constant-value entry) file))
1229 (dump-fop 'sb!impl::fop-misc-trap file))
1233 (let* ((info (leaf-info (cdr entry)))
1234 (handle (gethash info (fasl-file-entry-table file))))
1237 (dump-push handle file))
1239 (entry-patches (cons info
1240 (+ i sb!vm:code-constants-offset)))
1241 (dump-fop 'sb!impl::fop-misc-trap file)))))
1243 (dump-push (cdr entry) file))
1245 (dump-object (cdr entry) file)
1246 (dump-fop 'sb!impl::fop-fdefinition file))
1248 (dump-object 'load-type-predicate file)
1249 (let ((*unparse-function-type-simplify* t))
1250 (dump-object (type-specifier (cdr entry)) file))
1251 (dump-fop 'sb!impl::fop-funcall file)
1252 (dump-byte 1 file)))))))
1254 ;; Dump the debug info.
1256 (let ((info (make-debug-info :name
1257 (component-name *component-being-compiled*)))
1258 (*dump-only-valid-structures* nil))
1259 (dump-object info file)
1260 (let ((info-handle (dump-pop file)))
1261 (dump-push info-handle file)
1262 (push info-handle (fasl-file-debug-info file))))
1264 (let ((num-consts #!+gengc (+ (length constants) 2)
1265 #!-gengc (1+ (length constants)))
1266 (code-length #!+gengc (ceiling code-length 4)
1267 #!-gengc code-length))
1268 (cond ((and (< num-consts #x100) (< code-length #x10000))
1269 (dump-fop 'sb!impl::fop-small-code file)
1270 (dump-byte num-consts file)
1271 (dump-integer-as-n-bytes code-length 2 file))
1273 (dump-fop 'sb!impl::fop-code file)
1274 (dump-unsigned-32 num-consts file)
1275 (dump-unsigned-32 code-length file))))
1276 (dump-segment segment code-length file)
1277 (let ((code-handle (dump-pop file))
1278 (patch-table (fasl-file-patch-table file)))
1279 (dolist (patch (entry-patches))
1280 (push (cons code-handle (cdr patch))
1281 (gethash (car patch) patch-table)))
1284 ;;; Dump a BYTE-FUNCTION object. We dump the layout and
1285 ;;; funcallable-instance info, but rely on the loader setting up the
1286 ;;; correct funcallable-instance-function.
1287 (defun dump-byte-function (xep code-handle file)
1288 (let ((nslots (- (get-closure-length xep)
1290 (1- sb!vm:funcallable-instance-info-offset))))
1293 (dump-push code-handle file)
1294 (dump-object (%funcallable-instance-info xep i) file)))
1295 (dump-object (%funcallable-instance-layout xep) file)
1296 (dump-fop 'sb!impl::fop-make-byte-compiled-function file)
1297 (dump-byte nslots file))
1300 ;;; Dump a byte-component. This is similar to FASL-DUMP-COMPONENT, but
1302 (defun fasl-dump-byte-component (segment length constants xeps file)
1303 (declare (type sb!assem:segment segment)
1305 (type vector constants)
1307 (type fasl-file file))
1309 (let ((code-handle (dump-byte-code-object segment length constants file)))
1310 (dolist (noise xeps)
1311 (let* ((lambda (car noise))
1312 (info (lambda-info lambda))
1314 (dump-byte-function xep code-handle file)
1315 (let* ((entry-handle (dump-pop file))
1316 (patch-table (fasl-file-patch-table file))
1317 (old (gethash info patch-table)))
1318 (setf (gethash info (fasl-file-entry-table file)) entry-handle)
1321 (dump-alter-code-object (car patch)
1325 (remhash info patch-table))))))
1328 ;;; Dump a FOP-FUNCALL to call an already dumped top-level lambda at
1330 (defun fasl-dump-top-level-lambda-call (fun file)
1331 (declare (type clambda fun) (type fasl-file file))
1332 (let ((handle (gethash (leaf-info fun) (fasl-file-entry-table file))))
1334 (dump-push handle file)
1335 (dump-fop 'sb!impl::fop-funcall-for-effect file)
1339 ;;; Compute the correct list of DEBUG-SOURCE structures and backpatch
1340 ;;; all of the dumped DEBUG-INFO structures. We clear the
1341 ;;; FASL-FILE-DEBUG-INFO, so that subsequent components with different
1342 ;;; source info may be dumped.
1343 (defun fasl-dump-source-info (info file)
1344 (declare (type source-info info) (type fasl-file file))
1345 (let ((res (debug-source-for-info info))
1346 (*dump-only-valid-structures* nil))
1347 (dump-object res file)
1348 (let ((res-handle (dump-pop file)))
1349 (dolist (info-handle (fasl-file-debug-info file))
1350 (dump-push res-handle file)
1351 (dump-fop 'sb!impl::fop-structset file)
1352 (dump-unsigned-32 info-handle file)
1353 (dump-unsigned-32 2 file))))
1355 (setf (fasl-file-debug-info file) ())
1358 ;;;; dumping structures
1360 (defun dump-structure (struct file)
1361 (when *dump-only-valid-structures*
1362 (unless (gethash struct (fasl-file-valid-structures file))
1363 (error "attempt to dump invalid structure:~% ~S~%How did this happen?"
1365 (note-potential-circularity struct file)
1366 (do ((index 0 (1+ index))
1367 (length (%instance-length struct))
1368 (circ (fasl-file-circularity-table file)))
1371 sb!impl::fop-small-struct
1374 (let* ((obj (%instance-ref struct index))
1375 (ref (gethash obj circ)))
1377 (push (make-circularity :type :struct-set
1381 :enclosing-object ref)
1382 *circularities-detected*)
1383 (sub-dump-object nil file))
1385 (sub-dump-object obj file))))))
1387 (defun dump-layout (obj file)
1388 (when (layout-invalid obj)
1389 (compiler-error "attempt to dump reference to obsolete class: ~S"
1390 (layout-class obj)))
1391 (let ((name (sb!xc:class-name (layout-class obj))))
1393 (compiler-error "dumping anonymous layout: ~S" obj))
1394 (dump-fop 'sb!impl::fop-normal-load file)
1395 (let ((*cold-load-dump* t))
1396 (dump-object name file))
1397 (dump-fop 'sb!impl::fop-maybe-cold-load file))
1398 (sub-dump-object (layout-inherits obj) file)
1399 (sub-dump-object (layout-depthoid obj) file)
1400 (sub-dump-object (layout-length obj) file)
1401 (dump-fop 'sb!impl::fop-layout file))