1 ;;;; stuff that knows about dumping FASL files
3 ;;;; This software is part of the SBCL system. See the README file for
6 ;;;; This software is derived from the CMU CL system, which was
7 ;;;; written at Carnegie Mellon University and released into the
8 ;;;; public domain. The software is in the public domain and is
9 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
10 ;;;; files for more information.
12 (in-package "SB!FASL")
13 ;;; KLUDGE: Even though we're IN-PACKAGE SB!FASL, some of the code in
14 ;;; here is awfully chummy with the SB!C package. CMU CL didn't have
15 ;;; any separation between the two packages, and a lot of tight
16 ;;; coupling remains. -- WHN 2001-06-04
18 ;;;; fasl dumper state
20 ;;; The FASL-OUTPUT structure represents everything we need to
21 ;;; know about dumping to a fasl file. (We need to objectify the
22 ;;; state because the fasdumper must be reentrant.)
23 (defstruct (fasl-output
24 #-no-ansi-print-object
25 (:print-object (lambda (x s)
26 (print-unreadable-object (x s :type t)
27 (prin1 (namestring (fasl-output-stream x))
30 ;; the stream we dump to
31 (stream (missing-arg) :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 pathologies with objects for which EQUAL degenerates
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 (missing-arg) :type (member :rplaca :rplacd :svset :struct-set))
76 ;; the object containing circularity
78 ;; index in object for circularity
79 (index (missing-arg) :type index)
80 ;; the object to be stored at INDEX in OBJECT. This is that the key
81 ;; that we were using when we discovered the circularity.
83 ;; the value that was associated with VALUE in the
84 ;; CIRCULARITY-TABLE. This is the object that we look up in the
85 ;; EQ-TABLE to locate VALUE.
88 ;;; a list of the CIRCULARITY structures for all of the circularities
89 ;;; detected in the current top level call to DUMP-OBJECT. Setting
90 ;;; this lobotomizes circularity detection as well, since circular
91 ;;; dumping uses the table.
92 (defvar *circularities-detected*)
94 ;;; used to inhibit table access when dumping forms to be read by the
96 (defvar *cold-load-dump* nil)
98 ;;; used to turn off the structure validation during dumping of source
100 (defvar *dump-only-valid-structures* t)
103 ;;; Write the byte B to the specified FASL-OUTPUT stream.
104 (defun dump-byte (b fasl-output)
105 (declare (type (unsigned-byte 8) b) (type fasl-output fasl-output))
106 (write-byte b (fasl-output-stream fasl-output)))
108 ;; Dump a word-sized integer.
109 (defun dump-word (num fasl-output)
110 (declare (type sb!vm:word num))
111 (declare (type fasl-output fasl-output))
112 (let ((stream (fasl-output-stream fasl-output)))
113 (dotimes (i sb!vm:n-word-bytes)
114 (write-byte (ldb (byte 8 (* 8 i)) num) stream))))
116 ;; Dump a 32-bit integer.
117 (defun dump-unsigned-byte-32 (num fasl-output)
118 (declare (type sb!vm:word num))
119 (declare (type fasl-output fasl-output))
120 (let ((stream (fasl-output-stream fasl-output)))
122 (write-byte (ldb (byte 8 (* 8 i)) num) stream))))
124 ;;; Dump NUM to the fasl stream, represented by N bytes. This works
125 ;;; for either signed or unsigned integers. There's no range checking
126 ;;; -- if you don't specify enough bytes for the number to fit, this
127 ;;; function cheerfully outputs the low bytes.
128 (defun dump-integer-as-n-bytes (num bytes fasl-output)
129 (declare (integer num) (type index bytes))
130 (declare (type fasl-output fasl-output))
131 (do ((n num (ash n -8))
134 (declare (type index i))
135 (dump-byte (logand n #xff) fasl-output))
138 ;;; Setting this variable to an (UNSIGNED-BYTE 32) value causes
139 ;;; DUMP-FOP to use it as a counter and emit a FOP-NOP4 with the
140 ;;; counter value before every ordinary fop. This can make it easier
141 ;;; to follow the progress of LOAD-AS-FASL when
142 ;;; debugging/testing/experimenting.
143 #!+sb-show (defvar *fop-nop4-count* nil)
144 #!+sb-show (declaim (type (or (unsigned-byte 32) null) *fop-nop4-count*))
146 ;;; Dump the FOP code for the named FOP to the specified FASL-OUTPUT.
148 ;;; FIXME: This should be a function, with a compiler macro expansion
149 ;;; for the common constant-FS case. (Among other things, that'll stop
150 ;;; it from EVALing ,FILE multiple times.)
152 ;;; FIXME: Compiler macros, frozen classes, inlining, and similar
153 ;;; optimizations should be conditional on #!+SB-FROZEN.
154 (defmacro dump-fop (fs file)
155 (let* ((fs (eval fs))
156 (val (get fs 'fop-code)))
160 (when *fop-nop4-count*
161 (dump-byte ,(get 'fop-nop4 'fop-code) ,file)
162 (dump-integer-as-n-bytes (mod (incf *fop-nop4-count*) (expt 2 32))
164 (dump-byte ',val ,file))
165 (error "compiler bug: ~S is not a legal fasload operator." fs))))
167 ;;; Dump a FOP-CODE along with an integer argument, choosing the FOP
168 ;;; based on whether the argument will fit in a single byte.
170 ;;; FIXME: This, like DUMP-FOP, should be a function with a
171 ;;; compiler-macro expansion.
172 (defmacro dump-fop* (n byte-fop word-fop file)
176 (dump-fop ',byte-fop ,n-file)
177 (dump-byte ,n-n ,n-file))
179 (dump-fop ',word-fop ,n-file)
180 (dump-word ,n-n ,n-file)))))
182 ;;; Push the object at table offset Handle on the fasl stack.
183 (defun dump-push (handle fasl-output)
184 (declare (type index handle) (type fasl-output fasl-output))
185 (dump-fop* handle fop-byte-push fop-push fasl-output)
188 ;;; Pop the object currently on the fasl stack top into the table, and
189 ;;; return the table index, incrementing the free pointer.
190 (defun dump-pop (fasl-output)
192 (fasl-output-table-free fasl-output)
193 (dump-fop 'fop-pop fasl-output)
194 (incf (fasl-output-table-free fasl-output))))
196 ;;; If X is in File's EQUAL-TABLE, then push the object and return T,
197 ;;; otherwise NIL. If *COLD-LOAD-DUMP* is true, then do nothing and
199 (defun equal-check-table (x fasl-output)
200 (declare (type fasl-output fasl-output))
201 (unless *cold-load-dump*
202 (let ((handle (gethash x (fasl-output-equal-table fasl-output))))
204 (handle (dump-push handle fasl-output) t)
206 (defun string-check-table (x fasl-output)
207 (declare (type fasl-output fasl-output)
209 (unless *cold-load-dump*
210 (let ((handle (cdr (assoc
211 (array-element-type x)
212 (gethash x (fasl-output-equal-table fasl-output))))))
214 (handle (dump-push handle fasl-output) t)
217 ;;; These functions are called after dumping an object to save the
218 ;;; object in the table. The object (also passed in as X) must already
219 ;;; be on the top of the FOP stack. If *COLD-LOAD-DUMP* is true, then
220 ;;; we don't do anything.
221 (defun eq-save-object (x fasl-output)
222 (declare (type fasl-output fasl-output))
223 (unless *cold-load-dump*
224 (let ((handle (dump-pop fasl-output)))
225 (setf (gethash x (fasl-output-eq-table fasl-output)) handle)
226 (dump-push handle fasl-output)))
228 (defun equal-save-object (x fasl-output)
229 (declare (type fasl-output fasl-output))
230 (unless *cold-load-dump*
231 (let ((handle (dump-pop fasl-output)))
232 (setf (gethash x (fasl-output-equal-table fasl-output)) handle)
233 (setf (gethash x (fasl-output-eq-table fasl-output)) handle)
234 (dump-push handle fasl-output)))
236 (defun string-save-object (x fasl-output)
237 (declare (type fasl-output fasl-output)
239 (unless *cold-load-dump*
240 (let ((handle (dump-pop fasl-output)))
241 (push (cons (array-element-type x) handle)
242 (gethash x (fasl-output-equal-table fasl-output)))
243 (setf (gethash x (fasl-output-eq-table fasl-output)) handle)
244 (dump-push handle fasl-output)))
246 ;;; Record X in File's CIRCULARITY-TABLE unless *COLD-LOAD-DUMP* is
247 ;;; true. This is called on objects that we are about to dump might
248 ;;; have a circular path through them.
250 ;;; The object must not currently be in this table, since the dumper
251 ;;; should never be recursively called on a circular reference.
252 ;;; Instead, the dumping function must detect the circularity and
253 ;;; arrange for the dumped object to be patched.
254 (defun note-potential-circularity (x fasl-output)
255 (unless *cold-load-dump*
256 (let ((circ (fasl-output-circularity-table fasl-output)))
257 (aver (not (gethash x circ)))
258 (setf (gethash x circ) x)))
261 ;;; Dump FORM to a fasl file so that it evaluated at load time in normal
262 ;;; load and at cold-load time in cold load. This is used to dump package
264 (defun fasl-dump-cold-load-form (form fasl-output)
265 (declare (type fasl-output fasl-output))
266 (dump-fop 'fop-normal-load fasl-output)
267 (let ((*cold-load-dump* t))
268 (dump-object form fasl-output))
269 (dump-fop 'fop-eval-for-effect fasl-output)
270 (dump-fop 'fop-maybe-cold-load fasl-output)
273 ;;;; opening and closing fasl files
275 ;;; Open a fasl file, write its header, and return a FASL-OUTPUT
276 ;;; object for dumping to it. Some human-readable information about
277 ;;; the source code is given by the string WHERE.
278 (defun open-fasl-output (name where)
279 (declare (type pathname name))
280 (flet ((fasl-write-string (string stream)
281 ;; SB-EXT:STRING-TO-OCTETS is not available while cross-compiling
283 (loop for char across string
284 do (let ((code (char-code char)))
285 (unless (<= 0 code 127)
287 (write-byte code stream)))
288 ;; UTF-8 is safe to use, because +FASL-HEADER-STRING-STOP-CHAR-CODE+
289 ;; may not appear in UTF-8 encoded bytes
291 (write-sequence (string-to-octets string :external-format :utf-8)
293 (let* ((stream (open name
295 :if-exists :supersede
296 :element-type 'sb!assem:assembly-unit))
297 (res (make-fasl-output :stream stream)))
298 ;; Begin the header with the constant machine-readable (and
299 ;; semi-human-readable) string which is used to identify fasl files.
300 (fasl-write-string *fasl-header-string-start-string* stream)
301 ;; The constant string which begins the header is followed by
302 ;; arbitrary human-readable text, terminated by
303 ;; +FASL-HEADER-STRING-STOP-CHAR-CODE+.
305 (with-standard-io-syntax
306 (let ((*print-readably* nil)
307 (*print-pretty* nil))
313 using ~A version ~A~%"
315 #+sb-xc-host "cross-compile time"
316 #-sb-xc-host (format-universal-time nil (get-universal-time))
317 #+sb-xc-host "cross-compile host"
318 #-sb-xc-host (machine-instance)
319 (sb!xc:lisp-implementation-type)
320 (sb!xc:lisp-implementation-version))))
322 (dump-byte +fasl-header-string-stop-char-code+ res)
323 ;; Finish the header by outputting fasl file implementation,
324 ;; version, and key *FEATURES*.
325 (flet ((dump-counted-string (string)
326 ;; The count is dumped as a 32-bit unsigned-byte even on 64-bit
327 ;; platforms. This ensures that a x86-64 SBCL can gracefully
328 ;; detect an error when trying to read a x86 fasl, instead
329 ;; of choking on a ridiculously long counted string.
330 ;; -- JES, 2005-12-30
331 (dump-unsigned-byte-32 (length string) res)
332 (dotimes (i (length string))
333 (dump-byte (char-code (aref string i)) res))))
334 (dump-counted-string (symbol-name +backend-fasl-file-implementation+))
335 (dump-word +fasl-file-version+ res)
336 (dump-counted-string (sb!xc:lisp-implementation-version))
337 (dump-counted-string *features-affecting-fasl-format*))
340 ;;; Close the specified FASL-OUTPUT, aborting the write if ABORT-P.
341 (defun close-fasl-output (fasl-output abort-p)
342 (declare (type fasl-output fasl-output))
346 (aver (zerop (hash-table-count (fasl-output-patch-table fasl-output))))
348 (dump-fop 'fop-verify-empty-stack fasl-output)
349 (dump-fop 'fop-verify-table-size fasl-output)
350 (dump-word (fasl-output-table-free fasl-output)
352 (dump-fop 'fop-end-group fasl-output))
354 ;; That's all, folks.
355 (close (fasl-output-stream fasl-output) :abort abort-p)
358 ;;;; main entries to object dumping
360 ;;; This function deals with dumping objects that are complex enough
361 ;;; so that we want to cache them in the table, rather than repeatedly
362 ;;; dumping them. If the object is in the EQ-TABLE, then we push it,
363 ;;; otherwise, we do a type dispatch to a type specific dumping
364 ;;; function. The type specific branches do any appropriate
365 ;;; EQUAL-TABLE check and table entry.
367 ;;; When we go to dump the object, we enter it in the CIRCULARITY-TABLE.
368 (defun dump-non-immediate-object (x file)
369 (let ((index (gethash x (fasl-output-eq-table file))))
370 (cond ((and index (not *cold-load-dump*))
371 (dump-push index file))
374 (symbol (dump-symbol x file))
376 ;; KLUDGE: The code in this case has been hacked
377 ;; to match Douglas Crosher's quick fix to CMU CL
378 ;; (on cmucl-imp 1999-12-27), applied in sbcl-0.6.8.11
379 ;; with help from Martin Atzmueller. This is not an
380 ;; ideal solution; to quote DTC,
381 ;; The compiler locks up trying to coalesce the
382 ;; constant lists. The hack below will disable the
383 ;; coalescing of lists while dumping and allows
384 ;; the code to compile. The real fix would be to
385 ;; take a little more care while dumping these.
386 ;; So if better list coalescing is needed, start here.
388 (if (maybe-cyclic-p x)
391 (eq-save-object x file))
392 (unless (equal-check-table x file)
394 (equal-save-object x file))))
397 (eq-save-object x file))
399 (dump-structure x file)
400 (eq-save-object x file))
402 ;; DUMP-ARRAY (and its callees) are responsible for
403 ;; updating the EQ and EQUAL hash tables.
406 (unless (equal-check-table x file)
408 (ratio (dump-ratio x file))
409 (complex (dump-complex x file))
410 (float (dump-float x file))
411 (integer (dump-integer x file)))
412 (equal-save-object x file)))
414 ;; This probably never happens, since bad things tend to
415 ;; be detected during IR1 conversion.
416 (error "This object cannot be dumped into a fasl file:~% ~S"
420 ;;; Dump an object of any type by dispatching to the correct
421 ;;; type-specific dumping function. We pick off immediate objects,
422 ;;; symbols and magic lists here. Other objects are handled by
423 ;;; DUMP-NON-IMMEDIATE-OBJECT.
425 ;;; This is the function used for recursive calls to the fasl dumper.
426 ;;; We don't worry about creating circularities here, since it is
427 ;;; assumed that there is a top level call to DUMP-OBJECT.
428 (defun sub-dump-object (x file)
431 (dump-non-immediate-object x file)
432 (dump-fop 'fop-empty-list file)))
435 (dump-fop 'fop-truth file)
436 (dump-non-immediate-object x file)))
437 ((fixnump x) (dump-integer x file))
438 ((characterp x) (dump-character x file))
440 (dump-non-immediate-object x file))))
442 ;;; Dump stuff to backpatch already dumped objects. INFOS is the list
443 ;;; of CIRCULARITY structures describing what to do. The patching FOPs
444 ;;; take the value to store on the stack. We compute this value by
445 ;;; fetching the enclosing object from the table, and then CDR'ing it
447 (defun dump-circularities (infos file)
448 (let ((table (fasl-output-eq-table file)))
451 (let* ((value (circularity-value info))
452 (enclosing (circularity-enclosing-object info)))
453 (dump-push (gethash enclosing table) file)
454 (unless (eq enclosing value)
455 (do ((current enclosing (cdr current))
458 (dump-fop 'fop-nthcdr file)
460 (declare (type index i)))))
462 (ecase (circularity-type info)
463 (:rplaca (dump-fop 'fop-rplaca file))
464 (:rplacd (dump-fop 'fop-rplacd file))
465 (:svset (dump-fop 'fop-svset file))
466 (:struct-set (dump-fop 'fop-structset file)))
467 (dump-word (gethash (circularity-object info) table) file)
468 (dump-word (circularity-index info) file))))
470 ;;; Set up stuff for circularity detection, then dump an object. All
471 ;;; shared and circular structure will be exactly preserved within a
472 ;;; single call to DUMP-OBJECT. Sharing between objects dumped by
473 ;;; separate calls is only preserved when convenient.
475 ;;; We peek at the object type so that we only pay the circular
476 ;;; detection overhead on types of objects that might be circular.
477 (defun dump-object (x file)
478 (if (compound-object-p x)
479 (let ((*circularities-detected* ())
480 (circ (fasl-output-circularity-table file)))
482 (sub-dump-object x file)
483 (when *circularities-detected*
484 (dump-circularities *circularities-detected* file)
486 (sub-dump-object x file)))
488 ;;;; LOAD-TIME-VALUE and MAKE-LOAD-FORM support
490 ;;; Emit a funcall of the function and return the handle for the
492 (defun fasl-dump-load-time-value-lambda (fun file)
493 (declare (type sb!c::clambda fun) (type fasl-output file))
494 (let ((handle (gethash (sb!c::leaf-info fun)
495 (fasl-output-entry-table file))))
497 (dump-push handle file)
498 (dump-fop 'fop-funcall file)
502 ;;; Return T iff CONSTANT has already been dumped. It's been dumped if
503 ;;; it's in the EQ table.
505 ;;; Note: historically (1) the above comment was "T iff ... has not been dumped",
506 ;;; (2) the test was was also true if the constant had been validated / was in
507 ;;; the valid objects table. This led to substructures occasionally skipping the
508 ;;; validation, and hence failing the "must have been validated" test.
509 (defun fasl-constant-already-dumped-p (constant file)
510 (and (gethash constant (fasl-output-eq-table file)) t))
512 ;;; Use HANDLE whenever we try to dump CONSTANT. HANDLE should have been
513 ;;; returned earlier by FASL-DUMP-LOAD-TIME-VALUE-LAMBDA.
514 (defun fasl-note-handle-for-constant (constant handle file)
515 (let ((table (fasl-output-eq-table file)))
516 (when (gethash constant table)
517 (error "~S already dumped?" constant))
518 (setf (gethash constant table) handle))
521 ;;; Note that the specified structure can just be dumped by
522 ;;; enumerating the slots.
523 (defun fasl-validate-structure (structure file)
524 (setf (gethash structure (fasl-output-valid-structures file)) t)
529 (defun dump-ratio (x file)
530 (sub-dump-object (numerator x) file)
531 (sub-dump-object (denominator x) file)
532 (dump-fop 'fop-ratio file))
534 (defun dump-integer (n file)
537 (dump-fop 'fop-byte-integer file)
538 (dump-byte (logand #xFF n) file))
539 ((unsigned-byte #.(1- sb!vm:n-word-bits))
540 (dump-fop 'fop-word-integer file)
542 ((signed-byte #.sb!vm:n-word-bits)
543 (dump-fop 'fop-word-integer file)
544 (dump-integer-as-n-bytes n #.sb!vm:n-word-bytes file))
546 (let ((bytes (ceiling (1+ (integer-length n)) 8)))
547 (dump-fop* bytes fop-small-integer fop-integer file)
548 (dump-integer-as-n-bytes n bytes file)))))
550 (defun dump-float (x file)
553 (dump-fop 'fop-single-float file)
554 (dump-integer-as-n-bytes (single-float-bits x) 4 file))
556 (dump-fop 'fop-double-float file)
558 (declare (double-float x))
559 (dump-integer-as-n-bytes (double-float-low-bits x) 4 file)
560 (dump-integer-as-n-bytes (double-float-high-bits x) 4 file)))
563 (dump-fop 'fop-long-float file)
564 (dump-long-float x file))))
566 (defun dump-complex (x file)
569 ((complex single-float)
570 (dump-fop 'fop-complex-single-float file)
571 (dump-integer-as-n-bytes (single-float-bits (realpart x)) 4 file)
572 (dump-integer-as-n-bytes (single-float-bits (imagpart x)) 4 file))
574 ((complex double-float)
575 (dump-fop 'fop-complex-double-float file)
576 (let ((re (realpart x)))
577 (declare (double-float re))
578 (dump-integer-as-n-bytes (double-float-low-bits re) 4 file)
579 (dump-integer-as-n-bytes (double-float-high-bits re) 4 file))
580 (let ((im (imagpart x)))
581 (declare (double-float im))
582 (dump-integer-as-n-bytes (double-float-low-bits im) 4 file)
583 (dump-integer-as-n-bytes (double-float-high-bits im) 4 file)))
585 ((complex long-float)
586 ;; (There's no easy way to mix #!+LONG-FLOAT and #-SB-XC-HOST
587 ;; conditionalization at read time, so we do this SB-XC-HOST
588 ;; conditional at runtime instead.)
589 #+sb-xc-host (error "can't dump COMPLEX-LONG-FLOAT in cross-compiler")
590 (dump-fop 'fop-complex-long-float file)
591 (dump-long-float (realpart x) file)
592 (dump-long-float (imagpart x) file))
594 (sub-dump-object (realpart x) file)
595 (sub-dump-object (imagpart x) file)
596 (dump-fop 'fop-complex file))))
600 ;;; Return the table index of PKG, adding the package to the table if
601 ;;; necessary. During cold load, we read the string as a normal string
602 ;;; so that we can do the package lookup at cold load time.
604 ;;; FIXME: Despite the parallelism in names, the functionality of
605 ;;; this function is not parallel to other functions DUMP-FOO, e.g.
606 ;;; DUMP-SYMBOL and DUMP-LIST. The mapping between names and behavior
607 ;;; should be made more consistent.
608 (declaim (ftype (function (package fasl-output) index) dump-package))
609 (defun dump-package (pkg file)
610 (declare (inline assoc))
611 (cond ((cdr (assoc pkg (fasl-output-packages file) :test #'eq)))
613 (unless *cold-load-dump*
614 (dump-fop 'fop-normal-load file))
616 (dump-simple-base-string
617 (coerce (package-name pkg) 'simple-base-string)
620 (#!+sb-unicode dump-simple-character-string
621 #!-sb-unicode dump-simple-base-string
622 (coerce (package-name pkg) '(simple-array character (*)))
624 (dump-fop 'fop-package file)
625 (unless *cold-load-dump*
626 (dump-fop 'fop-maybe-cold-load file))
627 (let ((entry (dump-pop file)))
628 (push (cons pkg entry) (fasl-output-packages file))
633 ;;; Dump a list, setting up patching information when there are
634 ;;; circularities. We scan down the list, checking for CDR and CAR
637 ;;; If there is a CDR circularity, we terminate the list with NIL and
638 ;;; make a CIRCULARITY notation for the CDR of the previous cons.
640 ;;; If there is no CDR circularity, then we mark the current cons and
641 ;;; check for a CAR circularity. When there is a CAR circularity, we
642 ;;; make the CAR NIL initially, arranging for the current cons to be
645 ;;; Otherwise, we recursively call the dumper to dump the current
648 ;;; Marking of the conses is inhibited when *COLD-LOAD-DUMP* is true.
649 ;;; This inhibits all circularity detection.
650 (defun dump-list (list file)
652 (not (gethash list (fasl-output-circularity-table file)))))
653 (do* ((l list (cdr l))
655 (circ (fasl-output-circularity-table file)))
658 (terminate-undotted-list n file))
660 (sub-dump-object l file)
661 (terminate-dotted-list n file))))
662 (declare (type index n))
663 (let ((ref (gethash l circ)))
665 (push (make-circularity :type :rplacd
669 :enclosing-object ref)
670 *circularities-detected*)
671 (terminate-undotted-list n file)
674 (unless *cold-load-dump*
675 (setf (gethash l circ) list))
678 (ref (gethash obj circ)))
680 (push (make-circularity :type :rplaca
684 :enclosing-object ref)
685 *circularities-detected*)
686 (sub-dump-object nil file))
688 (sub-dump-object obj file))))))
690 (defun terminate-dotted-list (n file)
691 (declare (type index n) (type fasl-output file))
693 (1 (dump-fop 'fop-list*-1 file))
694 (2 (dump-fop 'fop-list*-2 file))
695 (3 (dump-fop 'fop-list*-3 file))
696 (4 (dump-fop 'fop-list*-4 file))
697 (5 (dump-fop 'fop-list*-5 file))
698 (6 (dump-fop 'fop-list*-6 file))
699 (7 (dump-fop 'fop-list*-7 file))
700 (8 (dump-fop 'fop-list*-8 file))
701 (t (do ((nn n (- nn 255)))
703 (dump-fop 'fop-list* file)
705 (declare (type index nn))
706 (dump-fop 'fop-list* file)
707 (dump-byte 255 file)))))
709 ;;; If N > 255, must build list with one LIST operator, then LIST*
712 (defun terminate-undotted-list (n file)
713 (declare (type index n) (type fasl-output file))
715 (1 (dump-fop 'fop-list-1 file))
716 (2 (dump-fop 'fop-list-2 file))
717 (3 (dump-fop 'fop-list-3 file))
718 (4 (dump-fop 'fop-list-4 file))
719 (5 (dump-fop 'fop-list-5 file))
720 (6 (dump-fop 'fop-list-6 file))
721 (7 (dump-fop 'fop-list-7 file))
722 (8 (dump-fop 'fop-list-8 file))
724 (dump-fop 'fop-list file)
726 (t (dump-fop 'fop-list file)
728 (do ((nn (- n 255) (- nn 255)))
730 (dump-fop 'fop-list* file)
732 (declare (type index nn))
733 (dump-fop 'fop-list* file)
734 (dump-byte 255 file)))))))
738 ;;; Dump the array thing.
739 (defun dump-array (x file)
742 (dump-multi-dim-array x file)))
744 ;;; Dump the vector object. If it's not simple, then actually dump a
745 ;;; simple version of it. But we enter the original in the EQ or EQUAL
747 (defun dump-vector (x file)
748 (let ((simple-version (if (array-header-p x)
749 (coerce x `(simple-array
750 ,(array-element-type x)
753 (typecase simple-version
756 (unless (string-check-table x file)
757 (dump-simple-base-string simple-version file)
758 (string-save-object x file)))
761 (unless (string-check-table x file)
762 (dump-simple-base-string simple-version file)
763 (string-save-object x file)))
765 ((simple-array character (*))
767 (unless (string-check-table x file)
768 (dump-simple-character-string simple-version file)
769 (string-save-object x file))
771 (bug "how did we get here?"))
773 (dump-simple-vector simple-version file)
774 (eq-save-object x file))
775 ((simple-array single-float (*))
776 (dump-single-float-vector simple-version file)
777 (eq-save-object x file))
778 ((simple-array double-float (*))
779 (dump-double-float-vector simple-version file)
780 (eq-save-object x file))
782 ((simple-array long-float (*))
783 (dump-long-float-vector simple-version file)
784 (eq-save-object x file))
785 ((simple-array (complex single-float) (*))
786 (dump-complex-single-float-vector simple-version file)
787 (eq-save-object x file))
788 ((simple-array (complex double-float) (*))
789 (dump-complex-double-float-vector simple-version file)
790 (eq-save-object x file))
792 ((simple-array (complex long-float) (*))
793 (dump-complex-long-float-vector simple-version file)
794 (eq-save-object x file))
796 (dump-i-vector simple-version file)
797 (eq-save-object x file)))))
799 ;;; Dump a SIMPLE-VECTOR, handling any circularities.
800 (defun dump-simple-vector (v file)
801 (declare (type simple-vector v) (type fasl-output file))
802 (note-potential-circularity v file)
803 (do ((index 0 (1+ index))
805 (circ (fasl-output-circularity-table file)))
807 (dump-fop* length fop-small-vector fop-vector file))
808 (let* ((obj (aref v index))
809 (ref (gethash obj circ)))
811 (push (make-circularity :type :svset
815 :enclosing-object ref)
816 *circularities-detected*)
817 (sub-dump-object nil file))
819 (sub-dump-object obj file))))))
821 ;;; In the grand scheme of things I don't pretend to understand any
822 ;;; more how this works, or indeed whether. But to write out specialized
823 ;;; vectors in the same format as fop-int-vector expects to read them
824 ;;; we need to be target-endian. dump-integer-as-n-bytes always writes
825 ;;; little-endian (which is correct for all other integers) so for a bigendian
826 ;;; target we need to swap octets -- CSR, after DB
828 (defun octet-swap (word bits)
829 "BITS must be a multiple of 8"
830 (do ((input word (ash input -8))
831 (output 0 (logior (ash output 8) (logand input #xff)))
832 (bits bits (- bits 8)))
833 ((<= bits 0) output)))
835 (defun dump-i-vector (vec file &key data-only)
836 (declare (type (simple-array * (*)) vec))
837 (let ((len (length vec)))
838 (labels ((dump-unsigned-vector (size bytes)
840 (dump-fop 'fop-int-vector file)
842 (dump-byte size file))
843 ;; The case which is easy to handle in a portable way is when
844 ;; the element size is a multiple of the output byte size, and
845 ;; happily that's the only case we need to be portable. (The
846 ;; cross-compiler has to output debug information (including
847 ;; (SIMPLE-ARRAY (UNSIGNED-BYTE 8) *).) The other cases are only
848 ;; needed in the target SBCL, so we let them be handled with
849 ;; unportable bit bashing.
850 (cond ((>= size 7) ; easy cases
851 (multiple-value-bind (floor rem) (floor size 8)
852 (aver (or (zerop rem) (= rem 7)))
854 (setq size (1+ size))
855 (setq floor (1+ floor)))
857 (dump-integer-as-n-bytes
858 (ecase sb!c:*backend-byte-order*
860 (:big-endian (octet-swap i size)))
862 (t ; harder cases, not supported in cross-compiler
863 (dump-raw-bytes vec bytes file))))
864 (dump-signed-vector (size bytes)
865 ;; Note: Dumping specialized signed vectors isn't
866 ;; supported in the cross-compiler. (All cases here end
867 ;; up trying to call DUMP-RAW-BYTES, which isn't
868 ;; provided in the cross-compilation host, only on the
871 (dump-fop 'fop-signed-int-vector file)
873 (dump-byte size file))
874 (dump-raw-bytes vec bytes file)))
877 ((simple-array nil (*))
878 (dump-unsigned-vector 0 0))
880 (dump-unsigned-vector 1 (ceiling len 8))) ; bits to bytes
881 ;; KLUDGE: This isn't the best way of expressing that the host
882 ;; may not have specializations for (unsigned-byte 2) and
883 ;; (unsigned-byte 4), which means that these types are
884 ;; type-equivalent to (simple-array (unsigned-byte 8) (*));
885 ;; the workaround is to remove them from the etypecase, since
886 ;; they can't be dumped from the cross-compiler anyway. --
889 ((simple-array (unsigned-byte 2) (*))
890 (dump-unsigned-vector 2 (ceiling (ash len 1) 8))) ; bits to bytes
892 ((simple-array (unsigned-byte 4) (*))
893 (dump-unsigned-vector 4 (ceiling (ash len 2) 8))) ; bits to bytes
895 ((simple-array (unsigned-byte 7) (*))
896 (dump-unsigned-vector 7 len))
897 ((simple-array (unsigned-byte 8) (*))
898 (dump-unsigned-vector 8 len))
900 ((simple-array (unsigned-byte 15) (*))
901 (dump-unsigned-vector 15 (* 2 len)))
902 ((simple-array (unsigned-byte 16) (*))
903 (dump-unsigned-vector 16 (* 2 len)))
905 ((simple-array (unsigned-byte 31) (*))
906 (dump-unsigned-vector 31 (* 4 len)))
907 ((simple-array (unsigned-byte 32) (*))
908 (dump-unsigned-vector 32 (* 4 len)))
910 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
911 ((simple-array (unsigned-byte 63) (*))
912 (dump-unsigned-vector 63 (* 8 len)))
913 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
914 ((simple-array (unsigned-byte 64) (*))
915 (dump-unsigned-vector 64 (* 8 len)))
916 ((simple-array (signed-byte 8) (*))
917 (dump-signed-vector 8 len))
918 ((simple-array (signed-byte 16) (*))
919 (dump-signed-vector 16 (* 2 len)))
920 #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
921 ((simple-array (unsigned-byte 29) (*))
922 (dump-signed-vector 29 (* 4 len)))
923 #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
924 ((simple-array (signed-byte 30) (*))
925 (dump-signed-vector 30 (* 4 len)))
926 ((simple-array (signed-byte 32) (*))
927 (dump-signed-vector 32 (* 4 len)))
928 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
929 ((simple-array (unsigned-byte 60) (*))
930 (dump-signed-vector 60 (* 8 len)))
931 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
932 ((simple-array (signed-byte 61) (*))
933 (dump-signed-vector 61 (* 8 len)))
934 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
935 ((simple-array (signed-byte 64) (*))
936 (dump-signed-vector 64 (* 8 len)))))))
938 ;;; Dump characters and string-ish things.
940 (defun dump-character (char file)
941 (let ((code (sb!xc:char-code char)))
944 (dump-fop 'fop-short-character file)
945 (dump-byte code file))
947 (dump-fop 'fop-character file)
948 (dump-word code file)))))
950 (defun dump-base-chars-of-string (s fasl-output)
951 (declare #+sb-xc-host (type simple-string s)
952 #-sb-xc-host (type simple-base-string s)
953 (type fasl-output fasl-output))
955 (dump-byte (sb!xc:char-code c) fasl-output))
959 ;;; Dump a SIMPLE-BASE-STRING.
960 (defun dump-simple-base-string (s file)
961 #+sb-xc-host (declare (type simple-string s))
962 #-sb-xc-host (declare (type simple-base-string s))
963 (dump-fop* (length s) fop-small-base-string fop-base-string file)
964 (dump-base-chars-of-string s file)
967 ;;; If we get here, it is assumed that the symbol isn't in the table,
968 ;;; but we are responsible for putting it there when appropriate. To
969 ;;; avoid too much special-casing, we always push the symbol in the
970 ;;; table, but don't record that we have done so if *COLD-LOAD-DUMP*
972 (defun dump-symbol (s file)
973 (declare (type fasl-output file))
974 (let* ((pname (symbol-name s))
975 (pname-length (length pname))
976 (pkg (symbol-package s)))
977 ;; see comment in genesis: we need this here for repeatable fasls
979 (multiple-value-bind (cl-symbol cl-status)
980 (find-symbol (symbol-name s) sb!int:*cl-package*)
981 (when (and (eq s cl-symbol)
982 (eq cl-status :external))
983 ;; special case, to work around possible xc host "design
984 ;; choice" weirdness in COMMON-LISP package
985 (setq pkg sb!int:*cl-package*)))
988 (dump-fop* pname-length
989 fop-uninterned-small-symbol-save
990 fop-uninterned-symbol-save
992 ;; CMU CL had FOP-SYMBOL-SAVE/FOP-SMALL-SYMBOL-SAVE fops which
993 ;; used the current value of *PACKAGE*. Unfortunately that's
994 ;; broken w.r.t. ANSI Common Lisp semantics, so those are gone
996 ;;((eq pkg *package*)
997 ;; (dump-fop* pname-length
998 ;; fop-small-symbol-save
999 ;; fop-symbol-save file))
1000 ((eq pkg sb!int:*cl-package*)
1001 (dump-fop* pname-length
1002 fop-lisp-small-symbol-save
1003 fop-lisp-symbol-save
1005 ((eq pkg sb!int:*keyword-package*)
1006 (dump-fop* pname-length
1007 fop-keyword-small-symbol-save
1008 fop-keyword-symbol-save
1010 ((< pname-length 256)
1011 (dump-fop* (dump-package pkg file)
1012 fop-small-symbol-in-byte-package-save
1013 fop-small-symbol-in-package-save
1015 (dump-byte pname-length file))
1017 (dump-fop* (dump-package pkg file)
1018 fop-symbol-in-byte-package-save
1019 fop-symbol-in-package-save
1021 (dump-word pname-length file)))
1023 #+sb-xc-host (dump-base-chars-of-string pname file)
1024 #-sb-xc-host (#!+sb-unicode dump-characters-of-string
1025 #!-sb-unicode dump-base-chars-of-string
1028 (unless *cold-load-dump*
1029 (setf (gethash s (fasl-output-eq-table file))
1030 (fasl-output-table-free file)))
1032 (incf (fasl-output-table-free file)))
1036 ;;;; component (function) dumping
1038 (defun dump-segment (segment code-length fasl-output)
1039 (declare (type sb!assem:segment segment)
1040 (type fasl-output fasl-output))
1041 (let* ((stream (fasl-output-stream fasl-output))
1042 (n-written (write-segment-contents segment stream)))
1043 ;; In CMU CL there was no enforced connection between the CODE-LENGTH
1044 ;; argument and the number of bytes actually written. I added this
1045 ;; assertion while trying to debug portable genesis. -- WHN 19990902
1046 (unless (= code-length n-written)
1047 (bug "code-length=~W, n-written=~W" code-length n-written)))
1050 ;;; Dump all the fixups. Currently there are three flavors of fixup:
1051 ;;; - assembly routines: named by a symbol
1052 ;;; - foreign (C) symbols: named by a string
1053 ;;; - code object references: don't need a name.
1054 (defun dump-fixups (fixups fasl-output)
1055 (declare (list fixups) (type fasl-output fasl-output))
1056 (dolist (note fixups)
1057 (let* ((kind (fixup-note-kind note))
1058 (fixup (fixup-note-fixup note))
1059 (position (fixup-note-position note))
1060 (name (fixup-name fixup))
1061 (flavor (fixup-flavor fixup)))
1062 (dump-fop 'fop-normal-load fasl-output)
1063 (let ((*cold-load-dump* t))
1064 (dump-object kind fasl-output))
1065 (dump-fop 'fop-maybe-cold-load fasl-output)
1066 ;; Depending on the flavor, we may have various kinds of
1067 ;; noise before the position.
1070 (aver (symbolp name))
1071 (dump-fop 'fop-normal-load fasl-output)
1072 (let ((*cold-load-dump* t))
1073 (dump-object name fasl-output))
1074 (dump-fop 'fop-maybe-cold-load fasl-output)
1075 (dump-fop 'fop-assembler-fixup fasl-output))
1076 ((:foreign :foreign-dataref)
1077 (aver (stringp name))
1080 (dump-fop 'fop-foreign-fixup fasl-output))
1083 (dump-fop 'fop-foreign-dataref-fixup fasl-output)))
1084 (let ((len (length name)))
1085 (aver (< len 256)) ; (limit imposed by fop definition)
1086 (dump-byte len fasl-output)
1088 (dump-byte (char-code (schar name i)) fasl-output))))
1091 (dump-fop 'fop-code-object-fixup fasl-output)))
1092 ;; No matter what the flavor, we'll always dump the position
1093 (dump-word position fasl-output)))
1096 ;;; Dump out the constant pool and code-vector for component, push the
1097 ;;; result in the table, and return the offset.
1099 ;;; The only tricky thing is handling constant-pool references to
1100 ;;; functions. If we have already dumped the function, then we just
1101 ;;; push the code pointer. Otherwise, we must create back-patching
1102 ;;; information so that the constant will be set when the function is
1103 ;;; eventually dumped. This is a bit awkward, since we don't have the
1104 ;;; handle for the code object being dumped while we are dumping its
1107 ;;; We dump trap objects in any unused slots or forward referenced slots.
1108 (defun dump-code-object (component
1115 (declare (type component component)
1116 (list trace-table-as-list)
1117 (type index code-length)
1118 (type fasl-output fasl-output))
1120 (let* ((2comp (component-info component))
1121 (constants (sb!c::ir2-component-constants 2comp))
1122 (header-length (length constants))
1123 (packed-trace-table (pack-trace-table trace-table-as-list))
1124 (total-length (+ code-length
1125 (* (length packed-trace-table)
1126 sb!c::tt-bytes-per-entry))))
1128 (collect ((patches))
1130 ;; Dump the offset of the trace table.
1131 (dump-object code-length fasl-output)
1132 ;; FIXME: As long as we don't have GENGC, the trace table is
1133 ;; hardwired to be empty. And SBCL doesn't have GENGC (and as
1134 ;; far as I know no modern CMU CL does either -- WHN
1135 ;; 2001-10-05). So might we be able to get rid of trace tables?
1137 ;; Note that gencgc also does something with the trace table.
1139 ;; Dump the constants, noting any :ENTRY constants that have to
1141 (loop for i from sb!vm:code-constants-offset below header-length do
1142 (let ((entry (aref constants i)))
1145 (dump-object (sb!c::constant-value entry) fasl-output))
1149 (let* ((info (sb!c::leaf-info (cdr entry)))
1150 (handle (gethash info
1151 (fasl-output-entry-table
1153 (declare (type sb!c::entry-info info))
1156 (dump-push handle fasl-output))
1158 (patches (cons info i))
1159 (dump-fop 'fop-misc-trap fasl-output)))))
1161 (dump-push (cdr entry) fasl-output))
1163 (dump-object (cdr entry) fasl-output)
1164 (dump-fop 'fop-fdefinition fasl-output))))
1166 (dump-fop 'fop-misc-trap fasl-output)))))
1168 ;; Dump the debug info.
1169 (let ((info (sb!c::debug-info-for-component component))
1170 (*dump-only-valid-structures* nil))
1171 (dump-object info fasl-output)
1172 (let ((info-handle (dump-pop fasl-output)))
1173 (dump-push info-handle fasl-output)
1174 (push info-handle (fasl-output-debug-info fasl-output))))
1176 (let ((num-consts (- header-length sb!vm:code-trace-table-offset-slot)))
1177 (cond ((and (< num-consts #x100) (< total-length #x10000))
1178 (dump-fop 'fop-small-code fasl-output)
1179 (dump-byte num-consts fasl-output)
1180 (dump-integer-as-n-bytes total-length (/ sb!vm:n-word-bytes 2) fasl-output))
1182 (dump-fop 'fop-code fasl-output)
1183 (dump-word num-consts fasl-output)
1184 (dump-word total-length fasl-output))))
1186 ;; These two dumps are only ones which contribute to our
1187 ;; TOTAL-LENGTH value.
1188 (dump-segment code-segment code-length fasl-output)
1189 (dump-i-vector packed-trace-table fasl-output :data-only t)
1191 ;; DUMP-FIXUPS does its own internal DUMP-FOPs: the bytes it
1192 ;; dumps aren't included in the TOTAL-LENGTH passed to our
1193 ;; FOP-CODE/FOP-SMALL-CODE fop.
1194 (dump-fixups fixups fasl-output)
1196 (dump-fop 'fop-sanctify-for-execution fasl-output)
1198 (let ((handle (dump-pop fasl-output)))
1199 (dolist (patch (patches))
1200 (push (cons handle (cdr patch))
1201 (gethash (car patch)
1202 (fasl-output-patch-table fasl-output))))
1205 (defun dump-assembler-routines (code-segment length fixups routines file)
1206 (dump-fop 'fop-assembler-code file)
1207 (dump-word length file)
1208 (write-segment-contents code-segment (fasl-output-stream file))
1209 (dolist (routine routines)
1210 (dump-fop 'fop-normal-load file)
1211 (let ((*cold-load-dump* t))
1212 (dump-object (car routine) file))
1213 (dump-fop 'fop-maybe-cold-load file)
1214 (dump-fop 'fop-assembler-routine file)
1215 (dump-word (label-position (cdr routine)) file))
1216 (dump-fixups fixups file)
1217 (dump-fop 'fop-sanctify-for-execution file)
1220 ;;; Dump a function entry data structure corresponding to ENTRY to
1221 ;;; FILE. CODE-HANDLE is the table offset of the code object for the
1223 (defun dump-one-entry (entry code-handle file)
1224 (declare (type sb!c::entry-info entry) (type index code-handle)
1225 (type fasl-output file))
1226 (let ((name (sb!c::entry-info-name entry)))
1227 (dump-push code-handle file)
1228 (dump-object name file)
1229 (dump-object (sb!c::entry-info-arguments entry) file)
1230 (dump-object (sb!c::entry-info-type entry) file)
1231 (dump-object (sb!c::entry-info-xref entry) file)
1232 (dump-fop 'fop-fun-entry file)
1233 (dump-word (label-position (sb!c::entry-info-offset entry)) file)
1236 ;;; Alter the code object referenced by CODE-HANDLE at the specified
1237 ;;; OFFSET, storing the object referenced by ENTRY-HANDLE.
1238 (defun dump-alter-code-object (code-handle offset entry-handle file)
1239 (declare (type index code-handle entry-handle offset))
1240 (declare (type fasl-output file))
1241 (dump-push code-handle file)
1242 (dump-push entry-handle file)
1243 (dump-fop* offset fop-byte-alter-code fop-alter-code file)
1246 ;;; Dump the code, constants, etc. for component. We pass in the
1247 ;;; assembler fixups, code vector and node info.
1248 (defun fasl-dump-component (component
1254 (declare (type component component) (list trace-table))
1255 (declare (type fasl-output file))
1257 (dump-fop 'fop-verify-table-size file)
1258 (dump-word (fasl-output-table-free file) file)
1261 (let ((info (sb!c::ir2-component-dyncount-info (component-info component))))
1263 (fasl-validate-structure info file)))
1265 (let ((code-handle (dump-code-object component
1271 (2comp (component-info component)))
1273 (dolist (entry (sb!c::ir2-component-entries 2comp))
1274 (let ((entry-handle (dump-one-entry entry code-handle file)))
1275 (setf (gethash entry (fasl-output-entry-table file)) entry-handle)
1276 (let ((old (gethash entry (fasl-output-patch-table file))))
1279 (dump-alter-code-object (car patch)
1283 (remhash entry (fasl-output-patch-table file)))))))
1286 (defun dump-push-previously-dumped-fun (fun fasl-output)
1287 (declare (type sb!c::clambda fun))
1288 (let ((handle (gethash (sb!c::leaf-info fun)
1289 (fasl-output-entry-table fasl-output))))
1291 (dump-push handle fasl-output))
1294 ;;; Dump a FOP-FUNCALL to call an already-dumped top level lambda at
1296 (defun fasl-dump-toplevel-lambda-call (fun fasl-output)
1297 (declare (type sb!c::clambda fun))
1298 (dump-push-previously-dumped-fun fun fasl-output)
1299 (dump-fop 'fop-funcall-for-effect fasl-output)
1300 (dump-byte 0 fasl-output)
1303 ;;; Dump a FOP-FSET to arrange static linkage (at cold init) between
1304 ;;; FUN-NAME and the already-dumped function whose dump handle is
1305 ;;; FUN-DUMP-HANDLE.
1307 (defun fasl-dump-cold-fset (fun-name fun-dump-handle fasl-output)
1308 (declare (type fixnum fun-dump-handle))
1309 (aver (legal-fun-name-p fun-name))
1310 (dump-non-immediate-object fun-name fasl-output)
1311 (dump-push fun-dump-handle fasl-output)
1312 (dump-fop 'fop-fset fasl-output)
1315 ;;; Compute the correct list of DEBUG-SOURCE structures and backpatch
1316 ;;; all of the dumped DEBUG-INFO structures. We clear the
1317 ;;; FASL-OUTPUT-DEBUG-INFO, so that subsequent components with
1318 ;;; different source info may be dumped.
1319 (defun fasl-dump-source-info (info fasl-output)
1320 (declare (type sb!c::source-info info))
1321 (let ((res (sb!c::debug-source-for-info info))
1322 (*dump-only-valid-structures* nil))
1323 #+sb-xc-host (setf (sb!c::debug-source-created res) 0
1324 (sb!c::debug-source-compiled res) 0)
1325 (dump-object res fasl-output)
1326 (let ((res-handle (dump-pop fasl-output)))
1327 (dolist (info-handle (fasl-output-debug-info fasl-output))
1328 (dump-push res-handle fasl-output)
1329 (dump-fop 'fop-structset fasl-output)
1330 (dump-word info-handle fasl-output)
1331 (dump-word sb!c::+debug-info-source-index+ fasl-output))
1334 (dump-push res-handle fasl-output)
1335 (dump-fop 'fop-note-debug-source fasl-output))))
1336 (setf (fasl-output-debug-info fasl-output) nil)
1339 ;;;; dumping structures
1341 (defun dump-structure (struct file)
1342 (when *dump-only-valid-structures*
1343 (unless (gethash struct (fasl-output-valid-structures file))
1344 (error "attempt to dump invalid structure:~% ~S~%How did this happen?"
1346 (note-potential-circularity struct file)
1347 (aver (%instance-ref struct 0))
1348 (do* ((length (%instance-length struct))
1349 (ntagged (- length (layout-n-untagged-slots (%instance-ref struct 0))))
1350 (circ (fasl-output-circularity-table file))
1351 ;; last slot first on the stack, so that the layout is on top:
1352 (index (1- length) (1- index)))
1354 (dump-fop* length fop-small-struct fop-struct file))
1355 (let* ((obj (if (>= index ntagged)
1356 (%raw-instance-ref/word struct (- length index 1))
1357 (%instance-ref struct index)))
1358 (ref (gethash obj circ)))
1360 (aver (not (zerop index)))
1361 (push (make-circularity :type :struct-set
1365 :enclosing-object ref)
1366 *circularities-detected*)
1367 (sub-dump-object nil file))
1369 (sub-dump-object obj file))))))
1371 (defun dump-layout (obj file)
1372 (when (layout-invalid obj)
1373 (compiler-error "attempt to dump reference to obsolete class: ~S"
1374 (layout-classoid obj)))
1375 (let ((name (classoid-name (layout-classoid obj))))
1377 (compiler-error "dumping anonymous layout: ~S" obj))
1378 (dump-fop 'fop-normal-load file)
1379 (let ((*cold-load-dump* t))
1380 (dump-object name file))
1381 (dump-fop 'fop-maybe-cold-load file))
1382 (sub-dump-object (layout-inherits obj) file)
1383 (sub-dump-object (layout-depthoid obj) file)
1384 (sub-dump-object (layout-length obj) file)
1385 (sub-dump-object (layout-n-untagged-slots obj) file)
1386 (dump-fop 'fop-layout file))