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
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 result.
461 (defun fasl-dump-load-time-value-lambda (fun file)
462 (declare (type clambda fun) (type fasl-file file))
463 (let ((handle (gethash (leaf-info fun) (fasl-file-entry-table file))))
465 (dump-push handle file)
466 (dump-fop 'sb!impl::fop-funcall file)
470 ;;; Return T iff CONSTANT has not already been dumped. It's been dumped
471 ;;; if it's in the EQ table.
472 (defun fasl-constant-already-dumped (constant file)
473 (if (or (gethash constant (fasl-file-eq-table file))
474 (gethash constant (fasl-file-valid-structures file)))
478 ;;; Use HANDLE whenever we try to dump CONSTANT. HANDLE should have been
479 ;;; returned earlier by FASL-DUMP-LOAD-TIME-VALUE-LAMBDA.
480 (defun fasl-note-handle-for-constant (constant handle file)
481 (let ((table (fasl-file-eq-table file)))
482 (when (gethash constant table)
483 (error "~S already dumped?" constant))
484 (setf (gethash constant table) handle))
487 ;;; Note that the specified structure can just be dumped by enumerating the
489 (defun fasl-validate-structure (structure file)
490 (setf (gethash structure (fasl-file-valid-structures file)) t)
497 (defun dump-ratio (x file)
498 (sub-dump-object (numerator x) file)
499 (sub-dump-object (denominator x) file)
500 (dump-fop 'sb!impl::fop-ratio file))
504 (defun dump-integer (n file)
507 (dump-fop 'sb!impl::fop-byte-integer file)
508 (dump-byte (logand #xFF n) file))
510 (dump-fop 'sb!impl::fop-word-integer file)
511 (dump-unsigned-32 n file))
513 (dump-fop 'sb!impl::fop-word-integer file)
514 (dump-integer-as-n-bytes n 4 file))
516 (let ((bytes (ceiling (1+ (integer-length n)) 8)))
518 sb!impl::fop-small-integer
521 (dump-integer-as-n-bytes n bytes file)))))
523 (defun dump-float (x file)
526 (dump-fop 'sb!impl::fop-single-float file)
527 (dump-integer-as-n-bytes (single-float-bits x) 4 file))
529 (dump-fop 'sb!impl::fop-double-float file)
531 (declare (double-float x))
532 ;; FIXME: Why sometimes DUMP-UNSIGNED-32 and sometimes
533 ;; DUMP-INTEGER-AS-N-BYTES .. 4?
534 (dump-unsigned-32 (double-float-low-bits x) file)
535 (dump-integer-as-n-bytes (double-float-high-bits x) 4 file)))
538 (dump-fop 'sb!impl::fop-long-float file)
539 (dump-long-float x file))))
541 (defun dump-complex (x file)
544 ((complex single-float)
545 (dump-fop 'sb!impl::fop-complex-single-float file)
546 (dump-integer-as-n-bytes (single-float-bits (realpart x)) 4 file)
547 (dump-integer-as-n-bytes (single-float-bits (imagpart x)) 4 file))
549 ((complex double-float)
550 (dump-fop 'sb!impl::fop-complex-double-float file)
551 (let ((re (realpart x)))
552 (declare (double-float re))
553 (dump-unsigned-32 (double-float-low-bits re) file)
554 (dump-integer-as-n-bytes (double-float-high-bits re) 4 file))
555 (let ((im (imagpart x)))
556 (declare (double-float im))
557 (dump-unsigned-32 (double-float-low-bits im) file)
558 (dump-integer-as-n-bytes (double-float-high-bits im) 4 file)))
559 #!+(and long-float (not sb-xc))
560 ((complex long-float)
561 (dump-fop 'sb!impl::fop-complex-long-float file)
562 (dump-long-float (realpart x) file)
563 (dump-long-float (imagpart x) file))
565 (sub-dump-object (realpart x) file)
566 (sub-dump-object (imagpart x) file)
567 (dump-fop 'sb!impl::fop-complex file))))
571 ;;; Return the table index of PKG, adding the package to the table if
572 ;;; necessary. During cold load, we read the string as a normal string so that
573 ;;; we can do the package lookup at cold load time.
575 ;;; KLUDGE: Despite the parallelism in names, the functionality of this
576 ;;; function is not parallel to other functions DUMP-FOO, e.g. DUMP-SYMBOL
577 ;;; and DUMP-LIST. -- WHN 19990119
578 (defun dump-package (pkg file)
579 (declare (type package pkg) (type fasl-file file) (values index)
581 (cond ((cdr (assoc pkg (fasl-file-packages file) :test #'eq)))
583 (unless *cold-load-dump*
584 (dump-fop 'sb!impl::fop-normal-load file))
585 (dump-simple-string (package-name pkg) file)
586 (dump-fop 'sb!impl::fop-package file)
587 (unless *cold-load-dump*
588 (dump-fop 'sb!impl::fop-maybe-cold-load file))
589 (let ((entry (dump-pop file)))
590 (push (cons pkg entry) (fasl-file-packages file))
595 ;;; Dump a list, setting up patching information when there are
596 ;;; circularities. We scan down the list, checking for CDR and CAR
599 ;;; If there is a CDR circularity, we terminate the list with NIL and
600 ;;; make a CIRCULARITY notation for the CDR of the previous cons.
602 ;;; If there is no CDR circularity, then we mark the current cons and
603 ;;; check for a CAR circularity. When there is a CAR circularity, we
604 ;;; make the CAR NIL initially, arranging for the current cons to be
607 ;;; Otherwise, we recursively call the dumper to dump the current
610 ;;; Marking of the conses is inhibited when *COLD-LOAD-DUMP* is true.
611 ;;; This inhibits all circularity detection.
612 (defun dump-list (list file)
614 (not (gethash list (fasl-file-circularity-table file)))))
615 (do* ((l list (cdr l))
617 (circ (fasl-file-circularity-table file)))
620 (terminate-undotted-list n file))
622 (sub-dump-object l file)
623 (terminate-dotted-list n file))))
624 (declare (type index n))
625 (let ((ref (gethash l circ)))
627 (push (make-circularity :type :rplacd
631 :enclosing-object ref)
632 *circularities-detected*)
633 (terminate-undotted-list n file)
636 (unless *cold-load-dump*
637 (setf (gethash l circ) list))
640 (ref (gethash obj circ)))
642 (push (make-circularity :type :rplaca
646 :enclosing-object ref)
647 *circularities-detected*)
648 (sub-dump-object nil file))
650 (sub-dump-object obj file))))))
652 (defun terminate-dotted-list (n file)
653 (declare (type index n) (type fasl-file file))
655 (1 (dump-fop 'sb!impl::fop-list*-1 file))
656 (2 (dump-fop 'sb!impl::fop-list*-2 file))
657 (3 (dump-fop 'sb!impl::fop-list*-3 file))
658 (4 (dump-fop 'sb!impl::fop-list*-4 file))
659 (5 (dump-fop 'sb!impl::fop-list*-5 file))
660 (6 (dump-fop 'sb!impl::fop-list*-6 file))
661 (7 (dump-fop 'sb!impl::fop-list*-7 file))
662 (8 (dump-fop 'sb!impl::fop-list*-8 file))
663 (T (do ((nn n (- nn 255)))
665 (dump-fop 'sb!impl::fop-list* file)
667 (declare (type index nn))
668 (dump-fop 'sb!impl::fop-list* file)
669 (dump-byte 255 file)))))
671 ;;; If N > 255, must build list with one list operator, then list* operators.
673 (defun terminate-undotted-list (n file)
674 (declare (type index n) (type fasl-file file))
676 (1 (dump-fop 'sb!impl::fop-list-1 file))
677 (2 (dump-fop 'sb!impl::fop-list-2 file))
678 (3 (dump-fop 'sb!impl::fop-list-3 file))
679 (4 (dump-fop 'sb!impl::fop-list-4 file))
680 (5 (dump-fop 'sb!impl::fop-list-5 file))
681 (6 (dump-fop 'sb!impl::fop-list-6 file))
682 (7 (dump-fop 'sb!impl::fop-list-7 file))
683 (8 (dump-fop 'sb!impl::fop-list-8 file))
685 (dump-fop 'sb!impl::fop-list file)
687 (t (dump-fop 'sb!impl::fop-list file)
689 (do ((nn (- n 255) (- nn 255)))
691 (dump-fop 'sb!impl::fop-list* file)
693 (declare (type index nn))
694 (dump-fop 'sb!impl::fop-list* file)
695 (dump-byte 255 file)))))))
699 ;;; Dump the array thing.
700 (defun dump-array (x file)
703 (dump-multi-dim-array x file)))
705 ;;; Dump the vector object. If it's not simple, then actually dump a simple
706 ;;; version of it. But we enter the original in the EQ or EQUAL tables.
707 (defun dump-vector (x file)
708 (let ((simple-version (if (array-header-p x)
709 (coerce x 'simple-array)
711 (typecase simple-version
713 (unless (equal-check-table x file)
714 (dump-simple-string simple-version file)
715 (equal-save-object x file)))
717 (dump-simple-vector simple-version file)
718 (eq-save-object x file))
719 ((simple-array single-float (*))
720 (dump-single-float-vector simple-version file)
721 (eq-save-object x file))
722 ((simple-array double-float (*))
723 (dump-double-float-vector simple-version file)
724 (eq-save-object x file))
726 ((simple-array long-float (*))
727 (dump-long-float-vector simple-version file)
728 (eq-save-object x file))
729 ((simple-array (complex single-float) (*))
730 (dump-complex-single-float-vector simple-version file)
731 (eq-save-object x file))
732 ((simple-array (complex double-float) (*))
733 (dump-complex-double-float-vector simple-version file)
734 (eq-save-object x file))
736 ((simple-array (complex long-float) (*))
737 (dump-complex-long-float-vector simple-version file)
738 (eq-save-object x file))
740 (dump-i-vector simple-version file)
741 (eq-save-object x file)))))
743 ;;; Dump a SIMPLE-VECTOR, handling any circularities.
744 (defun dump-simple-vector (v file)
745 (declare (type simple-vector v) (type fasl-file file))
746 (note-potential-circularity v file)
747 (do ((index 0 (1+ index))
749 (circ (fasl-file-circularity-table file)))
752 sb!impl::fop-small-vector
755 (let* ((obj (aref v index))
756 (ref (gethash obj circ)))
758 (push (make-circularity :type :svset
762 :enclosing-object ref)
763 *circularities-detected*)
764 (sub-dump-object nil file))
766 (sub-dump-object obj file))))))
768 (defun dump-i-vector (vec file &key data-only)
769 (declare (type (simple-array * (*)) vec))
770 (let ((len (length vec)))
771 (labels ((dump-unsigned-vector (size bytes)
773 (dump-fop 'sb!impl::fop-int-vector file)
774 (dump-unsigned-32 len file)
775 (dump-byte size file))
776 ;; The case which is easy to handle in a portable way is when
777 ;; the element size is a multiple of the output byte size, and
778 ;; happily that's the only case we need to be portable. (The
779 ;; cross-compiler has to output debug information (including
780 ;; (SIMPLE-ARRAY (UNSIGNED-BYTE 8) *).) The other cases are only
781 ;; needed in the target SBCL, so we let them be handled with
782 ;; unportable bit bashing.
783 (cond ((>= size 8) ; easy cases
784 (multiple-value-bind (floor rem) (floor size 8)
787 (dump-integer-as-n-bytes i floor file))))
788 (t ; harder cases, not supported in cross-compiler
789 (dump-raw-bytes vec bytes file))))
790 (dump-signed-vector (size bytes)
791 ;; Note: Dumping specialized signed vectors isn't supported in
792 ;; the cross-compiler. (All cases here end up trying to call
793 ;; DUMP-RAW-BYTES, which isn't provided in the cross-compilation
794 ;; host, only on the target machine.)
796 (dump-fop 'sb!impl::fop-signed-int-vector file)
797 (dump-unsigned-32 len file)
798 (dump-byte size file))
799 (dump-raw-bytes vec bytes file)))
801 ;; KLUDGE: What exactly does the (ASH .. -3) stuff do? -- WHN 19990902
803 (dump-unsigned-vector 1 (ash (+ (the index len) 7) -3)))
804 ((simple-array (unsigned-byte 2) (*))
805 (dump-unsigned-vector 2 (ash (+ (the index (ash len 1)) 7) -3)))
806 ((simple-array (unsigned-byte 4) (*))
807 (dump-unsigned-vector 4 (ash (+ (the index (ash len 2)) 7) -3)))
808 ((simple-array (unsigned-byte 8) (*))
809 (dump-unsigned-vector 8 len))
810 ((simple-array (unsigned-byte 16) (*))
811 (dump-unsigned-vector 16 (* 2 len)))
812 ((simple-array (unsigned-byte 32) (*))
813 (dump-unsigned-vector 32 (* 4 len)))
814 ((simple-array (signed-byte 8) (*))
815 (dump-signed-vector 8 len))
816 ((simple-array (signed-byte 16) (*))
817 (dump-signed-vector 16 (* 2 len)))
818 ((simple-array (signed-byte 30) (*))
819 (dump-signed-vector 30 (* 4 len)))
820 ((simple-array (signed-byte 32) (*))
821 (dump-signed-vector 32 (* 4 len)))))))
823 ;;; Dump characters and string-ish things.
825 (defun dump-character (ch file)
826 (dump-fop 'sb!impl::fop-short-character file)
827 (dump-byte (char-code ch) file))
829 ;;; a helper function shared by DUMP-SIMPLE-STRING and DUMP-SYMBOL
830 (defun dump-characters-of-string (s fasl-file)
831 (declare (type string s) (type fasl-file fasl-file))
833 (dump-byte (char-code c) fasl-file))
836 ;;; Dump a SIMPLE-BASE-STRING.
837 ;;; FIXME: should be called DUMP-SIMPLE-BASE-STRING then
838 (defun dump-simple-string (s file)
839 (declare (type simple-base-string s))
840 (dump-fop* (length s)
841 sb!impl::fop-small-string
844 (dump-characters-of-string s file)
847 ;;; If we get here, it is assumed that the symbol isn't in the table,
848 ;;; but we are responsible for putting it there when appropriate. To
849 ;;; avoid too much special-casing, we always push the symbol in the
850 ;;; table, but don't record that we have done so if *COLD-LOAD-DUMP*
852 (defun dump-symbol (s file)
853 (let* ((pname (symbol-name s))
854 (pname-length (length pname))
855 (pkg (symbol-package s)))
858 (dump-fop* pname-length
859 sb!impl::fop-uninterned-small-symbol-save
860 sb!impl::fop-uninterned-symbol-save
862 ;; CMU CL had FOP-SYMBOL-SAVE/FOP-SMALL-SYMBOL-SAVE fops which
863 ;; used the current value of *PACKAGE*. Unfortunately that's
864 ;; broken w.r.t. ANSI Common Lisp semantics, so those are gone
866 ;;((eq pkg *package*)
867 ;; (dump-fop* pname-length
868 ;; sb!impl::fop-small-symbol-save
869 ;; sb!impl::fop-symbol-save file))
870 ((eq pkg sb!int:*cl-package*)
871 (dump-fop* pname-length
872 sb!impl::fop-lisp-small-symbol-save
873 sb!impl::fop-lisp-symbol-save
875 ((eq pkg sb!int:*keyword-package*)
876 (dump-fop* pname-length
877 sb!impl::fop-keyword-small-symbol-save
878 sb!impl::fop-keyword-symbol-save
880 ((< pname-length 256)
881 (dump-fop* (dump-package pkg file)
882 sb!impl::fop-small-symbol-in-byte-package-save
883 sb!impl::fop-small-symbol-in-package-save
885 (dump-byte pname-length file))
887 (dump-fop* (dump-package pkg file)
888 sb!impl::fop-symbol-in-byte-package-save
889 sb!impl::fop-symbol-in-package-save
891 (dump-unsigned-32 pname-length file)))
893 (dump-characters-of-string pname file)
895 (unless *cold-load-dump*
896 (setf (gethash s (fasl-file-eq-table file))
897 (fasl-file-table-free file)))
899 (incf (fasl-file-table-free file)))
903 ;;;; component (function) dumping
905 (defun dump-segment (segment code-length fasl-file)
906 (declare (type sb!assem:segment segment)
907 (type fasl-file fasl-file))
908 (let* ((stream (fasl-file-stream fasl-file))
909 (nwritten (write-segment-contents segment stream)))
910 ;; In CMU CL there was no enforced connection between the CODE-LENGTH
911 ;; argument and the number of bytes actually written. I added this
912 ;; assertion while trying to debug portable genesis. -- WHN 19990902
913 (unless (= code-length nwritten)
914 (error "internal error, code-length=~D, nwritten=~D"
917 ;; KLUDGE: It's not clear what this is trying to do, but it looks as though
918 ;; it's an implicit undocumented dependence on a 4-byte wordsize which could
919 ;; be painful in porting. Note also that there are other undocumented
920 ;; modulo-4 things scattered throughout the code and conditionalized
921 ;; with GENGC, and I don't know what those do either. -- WHN 19990323
922 #!+gengc (unless (zerop (logand code-length 3))
923 (dotimes (i (- 4 (logand code-length 3)))
924 (dump-byte 0 fasl-file)))
927 ;;; Dump all the fixups. Currently there are three flavors of fixup:
928 ;;; - assembly routines: named by a symbol
929 ;;; - foreign (C) symbols: named by a string
930 ;;; - code object references: don't need a name.
931 (defun dump-fixups (fixups fasl-file)
932 (declare (list fixups) (type fasl-file fasl-file))
933 (dolist (info fixups)
934 ;; FIXME: Packing data with LIST in NOTE-FIXUP and unpacking them
935 ;; with FIRST, SECOND, and THIRD here is hard to follow and maintain.
936 ;; Perhaps we could define a FIXUP-INFO structure to use instead, and
937 ;; rename *FIXUPS* to *FIXUP-INFO-LIST*?
938 (let* ((kind (first info))
939 (fixup (second info))
940 (name (fixup-name fixup))
941 (flavor (fixup-flavor fixup))
942 (offset (third info)))
943 ;; FIXME: This OFFSET is not what's called OFFSET in
944 ;; the FIXUP structure, it's what's called POSN in NOTE-FIXUP.
945 ;; (As far as I can tell, FIXUP-OFFSET is not actually an offset,
946 ;; it's an internal label used instead of NAME for :CODE-OBJECT
947 ;; fixups. Notice that in the :CODE-OBJECT case, NAME is ignored.)
948 (dump-fop 'sb!impl::fop-normal-load fasl-file)
949 (let ((*cold-load-dump* t))
950 (dump-object kind fasl-file))
951 (dump-fop 'sb!impl::fop-maybe-cold-load fasl-file)
952 ;; Depending on the flavor, we may have various kinds of
953 ;; noise before the offset.
956 (assert (symbolp name))
957 (dump-fop 'sb!impl::fop-normal-load fasl-file)
958 (let ((*cold-load-dump* t))
959 (dump-object name fasl-file))
960 (dump-fop 'sb!impl::fop-maybe-cold-load fasl-file)
961 (dump-fop 'sb!impl::fop-assembler-fixup fasl-file))
963 (assert (stringp name))
964 (dump-fop 'sb!impl::fop-foreign-fixup fasl-file)
965 (let ((len (length name)))
966 (assert (< len 256)) ; (limit imposed by fop definition)
967 (dump-byte len fasl-file)
969 (dump-byte (char-code (schar name i)) fasl-file))))
972 (dump-fop 'sb!impl::fop-code-object-fixup fasl-file)))
973 ;; No matter what the flavor, we'll always dump the offset.
974 (dump-unsigned-32 offset fasl-file)))
977 ;;; Dump out the constant pool and code-vector for component, push the
978 ;;; result in the table, and return the offset.
980 ;;; The only tricky thing is handling constant-pool references to functions.
981 ;;; If we have already dumped the function, then we just push the code pointer.
982 ;;; Otherwise, we must create back-patching information so that the constant
983 ;;; will be set when the function is eventually dumped. This is a bit awkward,
984 ;;; since we don't have the handle for the code object being dumped while we
985 ;;; are dumping its constants.
987 ;;; We dump trap objects in any unused slots or forward referenced slots.
988 (defun dump-code-object (component
995 (declare (type component component)
996 (list trace-table-as-list)
997 (type index code-length)
998 (type fasl-file fasl-file))
1000 (let* ((2comp (component-info component))
1001 (constants (ir2-component-constants 2comp))
1002 (header-length (length constants))
1003 (packed-trace-table (pack-trace-table trace-table-as-list))
1004 (total-length (+ code-length
1005 (* (length packed-trace-table) tt-bytes-per-entry))))
1007 (collect ((patches))
1009 ;; Dump the debug info.
1011 (let ((info (debug-info-for-component component))
1012 (*dump-only-valid-structures* nil))
1013 (dump-object info fasl-file)
1014 (let ((info-handle (dump-pop fasl-file)))
1015 (dump-push info-handle fasl-file)
1016 (push info-handle (fasl-file-debug-info fasl-file))))
1018 ;; Dump the offset of the trace table.
1019 (dump-object code-length fasl-file)
1020 ;; KLUDGE: Now that we don't have GENGC, the trace table is hardwired
1021 ;; to be empty. Could we get rid of trace tables? What are the
1022 ;; virtues of GENGC vs. GENCGC vs. whatnot?
1024 ;; Dump the constants, noting any :entries that have to be fixed up.
1025 (do ((i sb!vm:code-constants-offset (1+ i)))
1026 ((>= i header-length))
1027 (let ((entry (aref constants i)))
1030 (dump-object (constant-value entry) fasl-file))
1034 (let* ((info (leaf-info (cdr entry)))
1035 (handle (gethash info
1036 (fasl-file-entry-table fasl-file))))
1039 (dump-push handle fasl-file))
1041 (patches (cons info i))
1042 (dump-fop 'sb!impl::fop-misc-trap fasl-file)))))
1044 (dump-push (cdr entry) fasl-file))
1046 (dump-object (cdr entry) fasl-file)
1047 (dump-fop 'sb!impl::fop-fdefinition fasl-file))))
1049 (dump-fop 'sb!impl::fop-misc-trap fasl-file)))))
1051 ;; Dump the debug info.
1053 (let ((info (debug-info-for-component component))
1054 (*dump-only-valid-structures* nil))
1055 (dump-object info fasl-file)
1056 (let ((info-handle (dump-pop fasl-file)))
1057 (dump-push info-handle fasl-file)
1058 (push info-handle (fasl-file-debug-info fasl-file))))
1060 (let ((num-consts #!+gengc (- header-length
1061 sb!vm:code-debug-info-slot)
1062 #!-gengc (- header-length
1063 sb!vm:code-trace-table-offset-slot))
1064 (total-length #!+gengc (ceiling total-length 4)
1065 #!-gengc total-length))
1066 (cond ((and (< num-consts #x100) (< total-length #x10000))
1067 (dump-fop 'sb!impl::fop-small-code fasl-file)
1068 (dump-byte num-consts fasl-file)
1069 (dump-integer-as-n-bytes total-length 2 fasl-file))
1071 (dump-fop 'sb!impl::fop-code fasl-file)
1072 (dump-unsigned-32 num-consts fasl-file)
1073 (dump-unsigned-32 total-length fasl-file))))
1075 ;; These two dumps are only ones which contribute to our TOTAL-LENGTH
1077 (dump-segment code-segment code-length fasl-file)
1078 (dump-i-vector packed-trace-table fasl-file :data-only t)
1080 ;; DUMP-FIXUPS does its own internal DUMP-FOPs: the bytes it dumps aren't
1081 ;; included in the TOTAL-LENGTH passed to our FOP-CODE/FOP-SMALL-CODE
1083 (dump-fixups fixups fasl-file)
1085 (dump-fop 'sb!impl::fop-sanctify-for-execution fasl-file)
1086 (let ((handle (dump-pop fasl-file)))
1087 (dolist (patch (patches))
1088 (push (cons handle (cdr patch))
1089 (gethash (car patch) (fasl-file-patch-table fasl-file))))
1092 (defun dump-assembler-routines (code-segment length fixups routines file)
1093 (dump-fop 'sb!impl::fop-assembler-code file)
1094 (dump-unsigned-32 #!+gengc (ceiling length 4)
1097 (write-segment-contents code-segment (fasl-file-stream file))
1098 (dolist (routine routines)
1099 (dump-fop 'sb!impl::fop-normal-load file)
1100 (let ((*cold-load-dump* t))
1101 (dump-object (car routine) file))
1102 (dump-fop 'sb!impl::fop-maybe-cold-load file)
1103 (dump-fop 'sb!impl::fop-assembler-routine file)
1104 (dump-unsigned-32 (label-position (cdr routine)) file))
1105 (dump-fixups fixups file)
1106 (dump-fop 'sb!impl::fop-sanctify-for-execution file)
1109 ;;; Dump a function-entry data structure corresponding to Entry to File.
1110 ;;; Code-Handle is the table offset of the code object for the component.
1112 ;;; If the entry is a DEFUN, then we also dump a FOP-FSET so that the cold
1113 ;;; loader can instantiate the definition at cold-load time, allowing forward
1114 ;;; references to functions in top-level forms.
1115 (defun dump-one-entry (entry code-handle file)
1116 (declare (type entry-info entry) (type index code-handle)
1117 (type fasl-file file))
1118 (let ((name (entry-info-name entry)))
1119 (dump-push code-handle file)
1120 (dump-object name file)
1121 (dump-object (entry-info-arguments entry) file)
1122 (dump-object (entry-info-type entry) file)
1123 (dump-fop 'sb!impl::fop-function-entry file)
1124 (dump-unsigned-32 (label-position (entry-info-offset entry)) file)
1125 (let ((handle (dump-pop file)))
1126 (when (and name (or (symbolp name) (listp name)))
1127 (dump-object name file)
1128 (dump-push handle file)
1129 (dump-fop 'sb!impl::fop-fset file))
1132 ;;; Alter the code object referenced by Code-Handle at the specified Offset,
1133 ;;; storing the object referenced by Entry-Handle.
1134 (defun dump-alter-code-object (code-handle offset entry-handle file)
1135 (declare (type index code-handle entry-handle offset) (type fasl-file file))
1136 (dump-push code-handle file)
1137 (dump-push entry-handle file)
1139 sb!impl::fop-byte-alter-code
1140 sb!impl::fop-alter-code
1144 ;;; Dump the code, constants, etc. for component. We pass in the assembler
1145 ;;; fixups, code vector and node info.
1146 (defun fasl-dump-component (component
1152 (declare (type component component) (list trace-table) (type fasl-file file))
1154 (dump-fop 'sb!impl::fop-verify-empty-stack file)
1155 (dump-fop 'sb!impl::fop-verify-table-size file)
1156 (dump-unsigned-32 (fasl-file-table-free file) file)
1159 (let ((info (ir2-component-dyncount-info (component-info component))))
1161 (fasl-validate-structure info file)))
1163 (let ((code-handle (dump-code-object component
1169 (2comp (component-info component)))
1170 (dump-fop 'sb!impl::fop-verify-empty-stack file)
1172 (dolist (entry (ir2-component-entries 2comp))
1173 (let ((entry-handle (dump-one-entry entry code-handle file)))
1174 (setf (gethash entry (fasl-file-entry-table file)) entry-handle)
1176 (let ((old (gethash entry (fasl-file-patch-table file))))
1177 ;; KLUDGE: All this code is shared with FASL-DUMP-BYTE-COMPONENT,
1178 ;; and should probably be gathered up into a named function
1179 ;; (DUMP-PATCHES?) called from both functions.
1182 (dump-alter-code-object (car patch)
1186 (remhash entry (fasl-file-patch-table file)))))))
1189 (defun dump-byte-code-object (segment code-length constants file)
1190 (declare (type sb!assem:segment segment)
1191 (type index code-length)
1192 (type vector constants)
1193 (type fasl-file file))
1194 (collect ((entry-patches))
1196 ;; Dump the debug info.
1198 (let ((info (make-debug-info
1199 :name (component-name *component-being-compiled*)))
1200 (*dump-only-valid-structures* nil))
1201 (dump-object info file)
1202 (let ((info-handle (dump-pop file)))
1203 (dump-push info-handle file)
1204 (push info-handle (fasl-file-debug-info file))))
1206 ;; The "trace table" is initialized by loader to hold a list of all byte
1207 ;; functions in this code object (for debug info.)
1208 (dump-object nil file)
1210 ;; Dump the constants.
1211 (dotimes (i (length constants))
1212 (let ((entry (aref constants i)))
1215 (dump-object (constant-value entry) file))
1217 (dump-fop 'sb!impl::fop-misc-trap file))
1221 (let* ((info (leaf-info (cdr entry)))
1222 (handle (gethash info (fasl-file-entry-table file))))
1225 (dump-push handle file))
1227 (entry-patches (cons info
1228 (+ i sb!vm:code-constants-offset)))
1229 (dump-fop 'sb!impl::fop-misc-trap file)))))
1231 (dump-push (cdr entry) file))
1233 (dump-object (cdr entry) file)
1234 (dump-fop 'sb!impl::fop-fdefinition file))
1236 (dump-object 'load-type-predicate file)
1237 (let ((*unparse-function-type-simplify* t))
1238 (dump-object (type-specifier (cdr entry)) file))
1239 (dump-fop 'sb!impl::fop-funcall file)
1240 (dump-byte 1 file)))))))
1242 ;; Dump the debug info.
1244 (let ((info (make-debug-info :name
1245 (component-name *component-being-compiled*)))
1246 (*dump-only-valid-structures* nil))
1247 (dump-object info file)
1248 (let ((info-handle (dump-pop file)))
1249 (dump-push info-handle file)
1250 (push info-handle (fasl-file-debug-info file))))
1252 (let ((num-consts #!+gengc (+ (length constants) 2)
1253 #!-gengc (1+ (length constants)))
1254 (code-length #!+gengc (ceiling code-length 4)
1255 #!-gengc code-length))
1256 (cond ((and (< num-consts #x100) (< code-length #x10000))
1257 (dump-fop 'sb!impl::fop-small-code file)
1258 (dump-byte num-consts file)
1259 (dump-integer-as-n-bytes code-length 2 file))
1261 (dump-fop 'sb!impl::fop-code file)
1262 (dump-unsigned-32 num-consts file)
1263 (dump-unsigned-32 code-length file))))
1264 (dump-segment segment code-length file)
1265 (let ((code-handle (dump-pop file))
1266 (patch-table (fasl-file-patch-table file)))
1267 (dolist (patch (entry-patches))
1268 (push (cons code-handle (cdr patch))
1269 (gethash (car patch) patch-table)))
1272 ;;; Dump a BYTE-FUNCTION object. We dump the layout and
1273 ;;; funcallable-instance info, but rely on the loader setting up the correct
1274 ;;; funcallable-instance-function.
1275 (defun dump-byte-function (xep code-handle file)
1276 (let ((nslots (- (get-closure-length xep)
1278 (1- sb!vm:funcallable-instance-info-offset))))
1281 (dump-push code-handle file)
1282 (dump-object (%funcallable-instance-info xep i) file)))
1283 (dump-object (%funcallable-instance-layout xep) file)
1284 (dump-fop 'sb!impl::fop-make-byte-compiled-function file)
1285 (dump-byte nslots file))
1288 ;;; Dump a byte-component. This is similar to FASL-DUMP-COMPONENT, but
1290 (defun fasl-dump-byte-component (segment length constants xeps file)
1291 (declare (type sb!assem:segment segment)
1293 (type vector constants)
1295 (type fasl-file file))
1297 (let ((code-handle (dump-byte-code-object segment length constants file)))
1298 (dolist (noise xeps)
1299 (let* ((lambda (car noise))
1300 (info (lambda-info lambda))
1302 (dump-byte-function xep code-handle file)
1303 (let* ((entry-handle (dump-pop file))
1304 (patch-table (fasl-file-patch-table file))
1305 (old (gethash info patch-table)))
1306 (setf (gethash info (fasl-file-entry-table file)) entry-handle)
1309 (dump-alter-code-object (car patch)
1313 (remhash info patch-table))))))
1316 ;;; Dump a FOP-FUNCALL to call an already dumped top-level lambda at load time.
1317 (defun fasl-dump-top-level-lambda-call (fun file)
1318 (declare (type clambda fun) (type fasl-file file))
1319 (let ((handle (gethash (leaf-info fun) (fasl-file-entry-table file))))
1321 (dump-push handle file)
1322 (dump-fop 'sb!impl::fop-funcall-for-effect file)
1326 ;;; Compute the correct list of DEBUG-SOURCE structures and backpatch all of
1327 ;;; the dumped DEBUG-INFO structures. We clear the FASL-FILE-DEBUG-INFO,
1328 ;;; so that subsequent components with different source info may be dumped.
1329 (defun fasl-dump-source-info (info file)
1330 (declare (type source-info info) (type fasl-file file))
1331 (let ((res (debug-source-for-info info))
1332 (*dump-only-valid-structures* nil))
1333 (dump-object res file)
1334 (let ((res-handle (dump-pop file)))
1335 (dolist (info-handle (fasl-file-debug-info file))
1336 (dump-push res-handle file)
1337 (dump-fop 'sb!impl::fop-structset file)
1338 (dump-unsigned-32 info-handle file)
1339 (dump-unsigned-32 2 file))))
1341 (setf (fasl-file-debug-info file) ())
1344 ;;;; dumping structures
1346 (defun dump-structure (struct file)
1347 ;; FIXME: Probably *DUMP-ONLY-VALID-STRUCTURES* should become constantly T,
1349 (when *dump-only-valid-structures*
1350 (unless (gethash struct (fasl-file-valid-structures file))
1351 (error "attempt to dump invalid structure:~% ~S~%How did this happen?"
1353 (note-potential-circularity struct file)
1354 (do ((index 0 (1+ index))
1355 (length (%instance-length struct))
1356 (circ (fasl-file-circularity-table file)))
1359 sb!impl::fop-small-struct
1362 (let* ((obj (%instance-ref struct index))
1363 (ref (gethash obj circ)))
1365 (push (make-circularity :type :struct-set
1369 :enclosing-object ref)
1370 *circularities-detected*)
1371 (sub-dump-object nil file))
1373 (sub-dump-object obj file))))))
1375 (defun dump-layout (obj file)
1376 (when (layout-invalid obj)
1377 (compiler-error "attempt to dump reference to obsolete class: ~S"
1378 (layout-class obj)))
1379 (let ((name (sb!xc:class-name (layout-class obj))))
1381 (compiler-error "dumping anonymous layout: ~S" obj))
1382 (dump-fop 'sb!impl::fop-normal-load file)
1383 (let ((*cold-load-dump* t))
1384 (dump-object name file))
1385 (dump-fop 'sb!impl::fop-maybe-cold-load file))
1386 (sub-dump-object (layout-inherits obj) file)
1387 (sub-dump-object (layout-depthoid obj) file)
1388 (sub-dump-object (layout-length obj) file)
1389 (dump-fop 'sb!impl::fop-layout file))