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 (format-universal-time nil
(get-universal-time))
317 (sb!xc
:lisp-implementation-type
)
318 (sb!xc
:lisp-implementation-version
))))
320 (dump-byte +fasl-header-string-stop-char-code
+ res
)
321 ;; Finish the header by outputting fasl file implementation,
322 ;; version, and key *FEATURES*.
323 (flet ((dump-counted-string (string)
324 ;; The count is dumped as a 32-bit unsigned-byte even on 64-bit
325 ;; platforms. This ensures that a x86-64 SBCL can gracefully
326 ;; detect an error when trying to read a x86 fasl, instead
327 ;; of choking on a ridiculously long counted string.
328 ;; -- JES, 2005-12-30
329 (dump-unsigned-byte-32 (length string
) res
)
330 (dotimes (i (length string
))
331 (dump-byte (char-code (aref string i
)) res
))))
332 (dump-counted-string (symbol-name +backend-fasl-file-implementation
+))
333 (dump-word +fasl-file-version
+ res
)
334 (dump-counted-string (sb!xc
:lisp-implementation-version
))
335 (dump-counted-string *features-affecting-fasl-format
*))
338 ;;; Close the specified FASL-OUTPUT, aborting the write if ABORT-P.
339 (defun close-fasl-output (fasl-output abort-p
)
340 (declare (type fasl-output fasl-output
))
344 (aver (zerop (hash-table-count (fasl-output-patch-table fasl-output
))))
346 (dump-fop 'fop-verify-empty-stack fasl-output
)
347 (dump-fop 'fop-verify-table-size fasl-output
)
348 (dump-word (fasl-output-table-free fasl-output
)
350 (dump-fop 'fop-end-group fasl-output
))
352 ;; That's all, folks.
353 (close (fasl-output-stream fasl-output
) :abort abort-p
)
356 ;;;; main entries to object dumping
358 ;;; This function deals with dumping objects that are complex enough
359 ;;; so that we want to cache them in the table, rather than repeatedly
360 ;;; dumping them. If the object is in the EQ-TABLE, then we push it,
361 ;;; otherwise, we do a type dispatch to a type specific dumping
362 ;;; function. The type specific branches do any appropriate
363 ;;; EQUAL-TABLE check and table entry.
365 ;;; When we go to dump the object, we enter it in the CIRCULARITY-TABLE.
366 (defun dump-non-immediate-object (x file
)
367 (let ((index (gethash x
(fasl-output-eq-table file
))))
368 (cond ((and index
(not *cold-load-dump
*))
369 (dump-push index file
))
372 (symbol (dump-symbol x file
))
374 ;; KLUDGE: The code in this case has been hacked
375 ;; to match Douglas Crosher's quick fix to CMU CL
376 ;; (on cmucl-imp 1999-12-27), applied in sbcl-0.6.8.11
377 ;; with help from Martin Atzmueller. This is not an
378 ;; ideal solution; to quote DTC,
379 ;; The compiler locks up trying to coalesce the
380 ;; constant lists. The hack below will disable the
381 ;; coalescing of lists while dumping and allows
382 ;; the code to compile. The real fix would be to
383 ;; take a little more care while dumping these.
384 ;; So if better list coalescing is needed, start here.
386 (if (maybe-cyclic-p x
)
389 (eq-save-object x file
))
390 (unless (equal-check-table x file
)
392 (equal-save-object x file
))))
395 (eq-save-object x file
))
397 (dump-structure x file
)
398 (eq-save-object x file
))
400 ;; DUMP-ARRAY (and its callees) are responsible for
401 ;; updating the EQ and EQUAL hash tables.
404 (unless (equal-check-table x file
)
406 (ratio (dump-ratio x file
))
407 (complex (dump-complex x file
))
408 (float (dump-float x file
))
409 (integer (dump-integer x file
)))
410 (equal-save-object x file
)))
412 ;; This probably never happens, since bad things tend to
413 ;; be detected during IR1 conversion.
414 (error "This object cannot be dumped into a fasl file:~% ~S"
418 ;;; Dump an object of any type by dispatching to the correct
419 ;;; type-specific dumping function. We pick off immediate objects,
420 ;;; symbols and magic lists here. Other objects are handled by
421 ;;; DUMP-NON-IMMEDIATE-OBJECT.
423 ;;; This is the function used for recursive calls to the fasl dumper.
424 ;;; We don't worry about creating circularities here, since it is
425 ;;; assumed that there is a top level call to DUMP-OBJECT.
426 (defun sub-dump-object (x file
)
429 (dump-non-immediate-object x file
)
430 (dump-fop 'fop-empty-list file
)))
433 (dump-fop 'fop-truth file
)
434 (dump-non-immediate-object x file
)))
435 ((fixnump x
) (dump-integer x file
))
436 ((characterp x
) (dump-character x file
))
438 (dump-non-immediate-object x file
))))
440 ;;; Dump stuff to backpatch already dumped objects. INFOS is the list
441 ;;; of CIRCULARITY structures describing what to do. The patching FOPs
442 ;;; take the value to store on the stack. We compute this value by
443 ;;; fetching the enclosing object from the table, and then CDR'ing it
445 (defun dump-circularities (infos file
)
446 (let ((table (fasl-output-eq-table file
)))
449 (let* ((value (circularity-value info
))
450 (enclosing (circularity-enclosing-object info
)))
451 (dump-push (gethash enclosing table
) file
)
452 (unless (eq enclosing value
)
453 (do ((current enclosing
(cdr current
))
456 (dump-fop 'fop-nthcdr file
)
458 (declare (type index i
)))))
460 (ecase (circularity-type info
)
461 (:rplaca
(dump-fop 'fop-rplaca file
))
462 (:rplacd
(dump-fop 'fop-rplacd file
))
463 (:svset
(dump-fop 'fop-svset file
))
464 (:struct-set
(dump-fop 'fop-structset file
)))
465 (dump-word (gethash (circularity-object info
) table
) file
)
466 (dump-word (circularity-index info
) file
))))
468 ;;; Set up stuff for circularity detection, then dump an object. All
469 ;;; shared and circular structure will be exactly preserved within a
470 ;;; single call to DUMP-OBJECT. Sharing between objects dumped by
471 ;;; separate calls is only preserved when convenient.
473 ;;; We peek at the object type so that we only pay the circular
474 ;;; detection overhead on types of objects that might be circular.
475 (defun dump-object (x file
)
476 (if (compound-object-p x
)
477 (let ((*circularities-detected
* ())
478 (circ (fasl-output-circularity-table file
)))
480 (sub-dump-object x file
)
481 (when *circularities-detected
*
482 (dump-circularities *circularities-detected
* file
)
484 (sub-dump-object x file
)))
486 ;;;; LOAD-TIME-VALUE and MAKE-LOAD-FORM support
488 ;;; Emit a funcall of the function and return the handle for the
490 (defun fasl-dump-load-time-value-lambda (fun file
)
491 (declare (type sb
!c
::clambda fun
) (type fasl-output file
))
492 (let ((handle (gethash (sb!c
::leaf-info fun
)
493 (fasl-output-entry-table file
))))
495 (dump-push handle file
)
496 (dump-fop 'fop-funcall file
)
500 ;;; Return T iff CONSTANT has already been dumped. It's been dumped if
501 ;;; it's in the EQ table.
503 ;;; Note: historically (1) the above comment was "T iff ... has not been dumped",
504 ;;; (2) the test was was also true if the constant had been validated / was in
505 ;;; the valid objects table. This led to substructures occasionally skipping the
506 ;;; validation, and hence failing the "must have been validated" test.
507 (defun fasl-constant-already-dumped-p (constant file
)
508 (and (gethash constant
(fasl-output-eq-table file
)) t
))
510 ;;; Use HANDLE whenever we try to dump CONSTANT. HANDLE should have been
511 ;;; returned earlier by FASL-DUMP-LOAD-TIME-VALUE-LAMBDA.
512 (defun fasl-note-handle-for-constant (constant handle file
)
513 (let ((table (fasl-output-eq-table file
)))
514 (when (gethash constant table
)
515 (error "~S already dumped?" constant
))
516 (setf (gethash constant table
) handle
))
519 ;;; Note that the specified structure can just be dumped by
520 ;;; enumerating the slots.
521 (defun fasl-validate-structure (structure file
)
522 (setf (gethash structure
(fasl-output-valid-structures file
)) t
)
527 (defun dump-ratio (x file
)
528 (sub-dump-object (numerator x
) file
)
529 (sub-dump-object (denominator x
) file
)
530 (dump-fop 'fop-ratio file
))
532 (defun dump-integer (n file
)
535 (dump-fop 'fop-byte-integer file
)
536 (dump-byte (logand #xFF n
) file
))
537 ((unsigned-byte #.
(1- sb
!vm
:n-word-bits
))
538 (dump-fop 'fop-word-integer file
)
540 ((signed-byte #.sb
!vm
:n-word-bits
)
541 (dump-fop 'fop-word-integer file
)
542 (dump-integer-as-n-bytes n
#.sb
!vm
:n-word-bytes file
))
544 (let ((bytes (ceiling (1+ (integer-length n
)) 8)))
545 (dump-fop* bytes fop-small-integer fop-integer file
)
546 (dump-integer-as-n-bytes n bytes file
)))))
548 (defun dump-float (x file
)
551 (dump-fop 'fop-single-float file
)
552 (dump-integer-as-n-bytes (single-float-bits x
) 4 file
))
554 (dump-fop 'fop-double-float file
)
556 (declare (double-float x
))
557 (dump-integer-as-n-bytes (double-float-low-bits x
) 4 file
)
558 (dump-integer-as-n-bytes (double-float-high-bits x
) 4 file
)))
561 (dump-fop 'fop-long-float file
)
562 (dump-long-float x file
))))
564 (defun dump-complex (x file
)
567 ((complex single-float
)
568 (dump-fop 'fop-complex-single-float file
)
569 (dump-integer-as-n-bytes (single-float-bits (realpart x
)) 4 file
)
570 (dump-integer-as-n-bytes (single-float-bits (imagpart x
)) 4 file
))
572 ((complex double-float
)
573 (dump-fop 'fop-complex-double-float file
)
574 (let ((re (realpart x
)))
575 (declare (double-float re
))
576 (dump-integer-as-n-bytes (double-float-low-bits re
) 4 file
)
577 (dump-integer-as-n-bytes (double-float-high-bits re
) 4 file
))
578 (let ((im (imagpart x
)))
579 (declare (double-float im
))
580 (dump-integer-as-n-bytes (double-float-low-bits im
) 4 file
)
581 (dump-integer-as-n-bytes (double-float-high-bits im
) 4 file
)))
583 ((complex long-float
)
584 ;; (There's no easy way to mix #!+LONG-FLOAT and #-SB-XC-HOST
585 ;; conditionalization at read time, so we do this SB-XC-HOST
586 ;; conditional at runtime instead.)
587 #+sb-xc-host
(error "can't dump COMPLEX-LONG-FLOAT in cross-compiler")
588 (dump-fop 'fop-complex-long-float file
)
589 (dump-long-float (realpart x
) file
)
590 (dump-long-float (imagpart x
) file
))
592 (sub-dump-object (realpart x
) file
)
593 (sub-dump-object (imagpart x
) file
)
594 (dump-fop 'fop-complex file
))))
598 ;;; Return the table index of PKG, adding the package to the table if
599 ;;; necessary. During cold load, we read the string as a normal string
600 ;;; so that we can do the package lookup at cold load time.
602 ;;; FIXME: Despite the parallelism in names, the functionality of
603 ;;; this function is not parallel to other functions DUMP-FOO, e.g.
604 ;;; DUMP-SYMBOL and DUMP-LIST. The mapping between names and behavior
605 ;;; should be made more consistent.
606 (declaim (ftype (function (package fasl-output
) index
) dump-package
))
607 (defun dump-package (pkg file
)
608 (declare (inline assoc
))
609 (cond ((cdr (assoc pkg
(fasl-output-packages file
) :test
#'eq
)))
611 (unless *cold-load-dump
*
612 (dump-fop 'fop-normal-load file
))
614 (dump-simple-base-string
615 (coerce (package-name pkg
) 'simple-base-string
)
618 (#!+sb-unicode dump-simple-character-string
619 #!-sb-unicode dump-simple-base-string
620 (coerce (package-name pkg
) '(simple-array character
(*)))
622 (dump-fop 'fop-package file
)
623 (unless *cold-load-dump
*
624 (dump-fop 'fop-maybe-cold-load file
))
625 (let ((entry (dump-pop file
)))
626 (push (cons pkg entry
) (fasl-output-packages file
))
631 ;;; Dump a list, setting up patching information when there are
632 ;;; circularities. We scan down the list, checking for CDR and CAR
635 ;;; If there is a CDR circularity, we terminate the list with NIL and
636 ;;; make a CIRCULARITY notation for the CDR of the previous cons.
638 ;;; If there is no CDR circularity, then we mark the current cons and
639 ;;; check for a CAR circularity. When there is a CAR circularity, we
640 ;;; make the CAR NIL initially, arranging for the current cons to be
643 ;;; Otherwise, we recursively call the dumper to dump the current
646 ;;; Marking of the conses is inhibited when *COLD-LOAD-DUMP* is true.
647 ;;; This inhibits all circularity detection.
648 (defun dump-list (list file
)
650 (not (gethash list
(fasl-output-circularity-table file
)))))
651 (do* ((l list
(cdr l
))
653 (circ (fasl-output-circularity-table file
)))
656 (terminate-undotted-list n file
))
658 (sub-dump-object l file
)
659 (terminate-dotted-list n file
))))
660 (declare (type index n
))
661 (let ((ref (gethash l circ
)))
663 (push (make-circularity :type
:rplacd
667 :enclosing-object ref
)
668 *circularities-detected
*)
669 (terminate-undotted-list n file
)
672 (unless *cold-load-dump
*
673 (setf (gethash l circ
) list
))
676 (ref (gethash obj circ
)))
678 (push (make-circularity :type
:rplaca
682 :enclosing-object ref
)
683 *circularities-detected
*)
684 (sub-dump-object nil file
))
686 (sub-dump-object obj file
))))))
688 (defun terminate-dotted-list (n file
)
689 (declare (type index n
) (type fasl-output file
))
691 (1 (dump-fop 'fop-list
*-
1 file
))
692 (2 (dump-fop 'fop-list
*-
2 file
))
693 (3 (dump-fop 'fop-list
*-
3 file
))
694 (4 (dump-fop 'fop-list
*-
4 file
))
695 (5 (dump-fop 'fop-list
*-
5 file
))
696 (6 (dump-fop 'fop-list
*-
6 file
))
697 (7 (dump-fop 'fop-list
*-
7 file
))
698 (8 (dump-fop 'fop-list
*-
8 file
))
699 (t (do ((nn n
(- nn
255)))
701 (dump-fop 'fop-list
* file
)
703 (declare (type index nn
))
704 (dump-fop 'fop-list
* file
)
705 (dump-byte 255 file
)))))
707 ;;; If N > 255, must build list with one LIST operator, then LIST*
710 (defun terminate-undotted-list (n file
)
711 (declare (type index n
) (type fasl-output file
))
713 (1 (dump-fop 'fop-list-1 file
))
714 (2 (dump-fop 'fop-list-2 file
))
715 (3 (dump-fop 'fop-list-3 file
))
716 (4 (dump-fop 'fop-list-4 file
))
717 (5 (dump-fop 'fop-list-5 file
))
718 (6 (dump-fop 'fop-list-6 file
))
719 (7 (dump-fop 'fop-list-7 file
))
720 (8 (dump-fop 'fop-list-8 file
))
722 (dump-fop 'fop-list file
)
724 (t (dump-fop 'fop-list file
)
726 (do ((nn (- n
255) (- nn
255)))
728 (dump-fop 'fop-list
* file
)
730 (declare (type index nn
))
731 (dump-fop 'fop-list
* file
)
732 (dump-byte 255 file
)))))))
736 ;;; Dump the array thing.
737 (defun dump-array (x file
)
740 (dump-multi-dim-array x file
)))
742 ;;; Dump the vector object. If it's not simple, then actually dump a
743 ;;; simple version of it. But we enter the original in the EQ or EQUAL
745 (defun dump-vector (x file
)
746 (let ((simple-version (if (array-header-p x
)
747 (coerce x
`(simple-array
748 ,(array-element-type x
)
751 (typecase simple-version
754 (unless (string-check-table x file
)
755 (dump-simple-base-string simple-version file
)
756 (string-save-object x file
)))
759 (unless (string-check-table x file
)
760 (dump-simple-base-string simple-version file
)
761 (string-save-object x file
)))
763 ((simple-array character
(*))
765 (unless (string-check-table x file
)
766 (dump-simple-character-string simple-version file
)
767 (string-save-object x file
))
769 (bug "how did we get here?"))
771 (dump-simple-vector simple-version file
)
772 (eq-save-object x file
))
773 ((simple-array single-float
(*))
774 (dump-single-float-vector simple-version file
)
775 (eq-save-object x file
))
776 ((simple-array double-float
(*))
777 (dump-double-float-vector simple-version file
)
778 (eq-save-object x file
))
780 ((simple-array long-float
(*))
781 (dump-long-float-vector simple-version file
)
782 (eq-save-object x file
))
783 ((simple-array (complex single-float
) (*))
784 (dump-complex-single-float-vector simple-version file
)
785 (eq-save-object x file
))
786 ((simple-array (complex double-float
) (*))
787 (dump-complex-double-float-vector simple-version file
)
788 (eq-save-object x file
))
790 ((simple-array (complex long-float
) (*))
791 (dump-complex-long-float-vector simple-version file
)
792 (eq-save-object x file
))
794 (dump-i-vector simple-version file
)
795 (eq-save-object x file
)))))
797 ;;; Dump a SIMPLE-VECTOR, handling any circularities.
798 (defun dump-simple-vector (v file
)
799 (declare (type simple-vector v
) (type fasl-output file
))
800 (note-potential-circularity v file
)
801 (do ((index 0 (1+ index
))
803 (circ (fasl-output-circularity-table file
)))
805 (dump-fop* length fop-small-vector fop-vector file
))
806 (let* ((obj (aref v index
))
807 (ref (gethash obj circ
)))
809 (push (make-circularity :type
:svset
813 :enclosing-object ref
)
814 *circularities-detected
*)
815 (sub-dump-object nil file
))
817 (sub-dump-object obj file
))))))
819 ;;; In the grand scheme of things I don't pretend to understand any
820 ;;; more how this works, or indeed whether. But to write out specialized
821 ;;; vectors in the same format as fop-int-vector expects to read them
822 ;;; we need to be target-endian. dump-integer-as-n-bytes always writes
823 ;;; little-endian (which is correct for all other integers) so for a bigendian
824 ;;; target we need to swap octets -- CSR, after DB
826 (defun octet-swap (word bits
)
827 "BITS must be a multiple of 8"
828 (do ((input word
(ash input -
8))
829 (output 0 (logior (ash output
8) (logand input
#xff
)))
830 (bits bits
(- bits
8)))
831 ((<= bits
0) output
)))
833 (defun dump-i-vector (vec file
&key data-only
)
834 (declare (type (simple-array * (*)) vec
))
835 (let ((len (length vec
)))
836 (labels ((dump-unsigned-vector (size bytes
)
838 (dump-fop 'fop-int-vector file
)
840 (dump-byte size file
))
841 ;; The case which is easy to handle in a portable way is when
842 ;; the element size is a multiple of the output byte size, and
843 ;; happily that's the only case we need to be portable. (The
844 ;; cross-compiler has to output debug information (including
845 ;; (SIMPLE-ARRAY (UNSIGNED-BYTE 8) *).) The other cases are only
846 ;; needed in the target SBCL, so we let them be handled with
847 ;; unportable bit bashing.
848 (cond ((>= size
7) ; easy cases
849 (multiple-value-bind (floor rem
) (floor size
8)
850 (aver (or (zerop rem
) (= rem
7)))
852 (setq size
(1+ size
))
853 (setq floor
(1+ floor
)))
855 (dump-integer-as-n-bytes
856 (ecase sb
!c
:*backend-byte-order
*
858 (:big-endian
(octet-swap i size
)))
860 (t ; harder cases, not supported in cross-compiler
861 (dump-raw-bytes vec bytes file
))))
862 (dump-signed-vector (size bytes
)
863 ;; Note: Dumping specialized signed vectors isn't
864 ;; supported in the cross-compiler. (All cases here end
865 ;; up trying to call DUMP-RAW-BYTES, which isn't
866 ;; provided in the cross-compilation host, only on the
869 (dump-fop 'fop-signed-int-vector file
)
871 (dump-byte size file
))
872 (dump-raw-bytes vec bytes file
)))
875 ((simple-array nil
(*))
876 (dump-unsigned-vector 0 0))
878 (dump-unsigned-vector 1 (ceiling len
8))) ; bits to bytes
879 ;; KLUDGE: This isn't the best way of expressing that the host
880 ;; may not have specializations for (unsigned-byte 2) and
881 ;; (unsigned-byte 4), which means that these types are
882 ;; type-equivalent to (simple-array (unsigned-byte 8) (*));
883 ;; the workaround is to remove them from the etypecase, since
884 ;; they can't be dumped from the cross-compiler anyway. --
887 ((simple-array (unsigned-byte 2) (*))
888 (dump-unsigned-vector 2 (ceiling (ash len
1) 8))) ; bits to bytes
890 ((simple-array (unsigned-byte 4) (*))
891 (dump-unsigned-vector 4 (ceiling (ash len
2) 8))) ; bits to bytes
893 ((simple-array (unsigned-byte 7) (*))
894 (dump-unsigned-vector 7 len
))
895 ((simple-array (unsigned-byte 8) (*))
896 (dump-unsigned-vector 8 len
))
898 ((simple-array (unsigned-byte 15) (*))
899 (dump-unsigned-vector 15 (* 2 len
)))
900 ((simple-array (unsigned-byte 16) (*))
901 (dump-unsigned-vector 16 (* 2 len
)))
903 ((simple-array (unsigned-byte 31) (*))
904 (dump-unsigned-vector 31 (* 4 len
)))
905 ((simple-array (unsigned-byte 32) (*))
906 (dump-unsigned-vector 32 (* 4 len
)))
908 #!+#.
(cl:if
(cl:= 64 sb
!vm
:n-word-bits
) '(and) '(or))
909 ((simple-array (unsigned-byte 63) (*))
910 (dump-unsigned-vector 63 (* 8 len
)))
911 #!+#.
(cl:if
(cl:= 64 sb
!vm
:n-word-bits
) '(and) '(or))
912 ((simple-array (unsigned-byte 64) (*))
913 (dump-unsigned-vector 64 (* 8 len
)))
914 ((simple-array (signed-byte 8) (*))
915 (dump-signed-vector 8 len
))
916 ((simple-array (signed-byte 16) (*))
917 (dump-signed-vector 16 (* 2 len
)))
918 #!+#.
(cl:if
(cl:= 32 sb
!vm
:n-word-bits
) '(and) '(or))
919 ((simple-array (unsigned-byte 29) (*))
920 (dump-signed-vector 29 (* 4 len
)))
921 #!+#.
(cl:if
(cl:= 32 sb
!vm
:n-word-bits
) '(and) '(or))
922 ((simple-array (signed-byte 30) (*))
923 (dump-signed-vector 30 (* 4 len
)))
924 ((simple-array (signed-byte 32) (*))
925 (dump-signed-vector 32 (* 4 len
)))
926 #!+#.
(cl:if
(cl:= 64 sb
!vm
:n-word-bits
) '(and) '(or))
927 ((simple-array (unsigned-byte 60) (*))
928 (dump-signed-vector 60 (* 8 len
)))
929 #!+#.
(cl:if
(cl:= 64 sb
!vm
:n-word-bits
) '(and) '(or))
930 ((simple-array (signed-byte 61) (*))
931 (dump-signed-vector 61 (* 8 len
)))
932 #!+#.
(cl:if
(cl:= 64 sb
!vm
:n-word-bits
) '(and) '(or))
933 ((simple-array (signed-byte 64) (*))
934 (dump-signed-vector 64 (* 8 len
)))))))
936 ;;; Dump characters and string-ish things.
938 (defun dump-character (char file
)
939 (let ((code (sb!xc
:char-code char
)))
942 (dump-fop 'fop-short-character file
)
943 (dump-byte code file
))
945 (dump-fop 'fop-character file
)
946 (dump-word code file
)))))
948 (defun dump-base-chars-of-string (s fasl-output
)
949 (declare #+sb-xc-host
(type simple-string s
)
950 #-sb-xc-host
(type simple-base-string s
)
951 (type fasl-output fasl-output
))
953 (dump-byte (sb!xc
:char-code c
) fasl-output
))
957 ;;; Dump a SIMPLE-BASE-STRING.
958 (defun dump-simple-base-string (s file
)
959 #+sb-xc-host
(declare (type simple-string s
))
960 #-sb-xc-host
(declare (type simple-base-string s
))
961 (dump-fop* (length s
) fop-small-base-string fop-base-string file
)
962 (dump-base-chars-of-string s file
)
965 ;;; If we get here, it is assumed that the symbol isn't in the table,
966 ;;; but we are responsible for putting it there when appropriate. To
967 ;;; avoid too much special-casing, we always push the symbol in the
968 ;;; table, but don't record that we have done so if *COLD-LOAD-DUMP*
970 (defun dump-symbol (s file
)
971 (declare (type fasl-output file
))
972 (let* ((pname (symbol-name s
))
973 (pname-length (length pname
))
974 (pkg (symbol-package s
)))
977 (dump-fop* pname-length
978 fop-uninterned-small-symbol-save
979 fop-uninterned-symbol-save
981 ;; CMU CL had FOP-SYMBOL-SAVE/FOP-SMALL-SYMBOL-SAVE fops which
982 ;; used the current value of *PACKAGE*. Unfortunately that's
983 ;; broken w.r.t. ANSI Common Lisp semantics, so those are gone
985 ;;((eq pkg *package*)
986 ;; (dump-fop* pname-length
987 ;; fop-small-symbol-save
988 ;; fop-symbol-save file))
989 ((eq pkg sb
!int
:*cl-package
*)
990 (dump-fop* pname-length
991 fop-lisp-small-symbol-save
994 ((eq pkg sb
!int
:*keyword-package
*)
995 (dump-fop* pname-length
996 fop-keyword-small-symbol-save
997 fop-keyword-symbol-save
999 ((< pname-length
256)
1000 (dump-fop* (dump-package pkg file
)
1001 fop-small-symbol-in-byte-package-save
1002 fop-small-symbol-in-package-save
1004 (dump-byte pname-length file
))
1006 (dump-fop* (dump-package pkg file
)
1007 fop-symbol-in-byte-package-save
1008 fop-symbol-in-package-save
1010 (dump-word pname-length file
)))
1012 #+sb-xc-host
(dump-base-chars-of-string pname file
)
1013 #-sb-xc-host
(#!+sb-unicode dump-characters-of-string
1014 #!-sb-unicode dump-base-chars-of-string
1017 (unless *cold-load-dump
*
1018 (setf (gethash s
(fasl-output-eq-table file
))
1019 (fasl-output-table-free file
)))
1021 (incf (fasl-output-table-free file
)))
1025 ;;;; component (function) dumping
1027 (defun dump-segment (segment code-length fasl-output
)
1028 (declare (type sb
!assem
:segment segment
)
1029 (type fasl-output fasl-output
))
1030 (let* ((stream (fasl-output-stream fasl-output
))
1031 (n-written (write-segment-contents segment stream
)))
1032 ;; In CMU CL there was no enforced connection between the CODE-LENGTH
1033 ;; argument and the number of bytes actually written. I added this
1034 ;; assertion while trying to debug portable genesis. -- WHN 19990902
1035 (unless (= code-length n-written
)
1036 (bug "code-length=~W, n-written=~W" code-length n-written
)))
1039 ;;; Dump all the fixups. Currently there are three flavors of fixup:
1040 ;;; - assembly routines: named by a symbol
1041 ;;; - foreign (C) symbols: named by a string
1042 ;;; - code object references: don't need a name.
1043 (defun dump-fixups (fixups fasl-output
)
1044 (declare (list fixups
) (type fasl-output fasl-output
))
1045 (dolist (note fixups
)
1046 (let* ((kind (fixup-note-kind note
))
1047 (fixup (fixup-note-fixup note
))
1048 (position (fixup-note-position note
))
1049 (name (fixup-name fixup
))
1050 (flavor (fixup-flavor fixup
)))
1051 (dump-fop 'fop-normal-load fasl-output
)
1052 (let ((*cold-load-dump
* t
))
1053 (dump-object kind fasl-output
))
1054 (dump-fop 'fop-maybe-cold-load fasl-output
)
1055 ;; Depending on the flavor, we may have various kinds of
1056 ;; noise before the position.
1059 (aver (symbolp name
))
1060 (dump-fop 'fop-normal-load fasl-output
)
1061 (let ((*cold-load-dump
* t
))
1062 (dump-object name fasl-output
))
1063 (dump-fop 'fop-maybe-cold-load fasl-output
)
1064 (dump-fop 'fop-assembler-fixup fasl-output
))
1065 ((:foreign
:foreign-dataref
)
1066 (aver (stringp name
))
1069 (dump-fop 'fop-foreign-fixup fasl-output
))
1072 (dump-fop 'fop-foreign-dataref-fixup fasl-output
)))
1073 (let ((len (length name
)))
1074 (aver (< len
256)) ; (limit imposed by fop definition)
1075 (dump-byte len fasl-output
)
1077 (dump-byte (char-code (schar name i
)) fasl-output
))))
1080 (dump-fop 'fop-code-object-fixup fasl-output
)))
1081 ;; No matter what the flavor, we'll always dump the position
1082 (dump-word position fasl-output
)))
1085 ;;; Dump out the constant pool and code-vector for component, push the
1086 ;;; result in the table, and return the offset.
1088 ;;; The only tricky thing is handling constant-pool references to
1089 ;;; functions. If we have already dumped the function, then we just
1090 ;;; push the code pointer. Otherwise, we must create back-patching
1091 ;;; information so that the constant will be set when the function is
1092 ;;; eventually dumped. This is a bit awkward, since we don't have the
1093 ;;; handle for the code object being dumped while we are dumping its
1096 ;;; We dump trap objects in any unused slots or forward referenced slots.
1097 (defun dump-code-object (component
1104 (declare (type component component
)
1105 (list trace-table-as-list
)
1106 (type index code-length
)
1107 (type fasl-output fasl-output
))
1109 (let* ((2comp (component-info component
))
1110 (constants (sb!c
::ir2-component-constants
2comp
))
1111 (header-length (length constants
))
1112 (packed-trace-table (pack-trace-table trace-table-as-list
))
1113 (total-length (+ code-length
1114 (* (length packed-trace-table
)
1115 sb
!c
::tt-bytes-per-entry
))))
1117 (collect ((patches))
1119 ;; Dump the offset of the trace table.
1120 (dump-object code-length fasl-output
)
1121 ;; FIXME: As long as we don't have GENGC, the trace table is
1122 ;; hardwired to be empty. And SBCL doesn't have GENGC (and as
1123 ;; far as I know no modern CMU CL does either -- WHN
1124 ;; 2001-10-05). So might we be able to get rid of trace tables?
1126 ;; Note that gencgc also does something with the trace table.
1128 ;; Dump the constants, noting any :ENTRY constants that have to
1130 (loop for i from sb
!vm
:code-constants-offset below header-length do
1131 (let ((entry (aref constants i
)))
1134 (dump-object (sb!c
::constant-value entry
) fasl-output
))
1138 (let* ((info (sb!c
::leaf-info
(cdr entry
)))
1139 (handle (gethash info
1140 (fasl-output-entry-table
1142 (declare (type sb
!c
::entry-info info
))
1145 (dump-push handle fasl-output
))
1147 (patches (cons info i
))
1148 (dump-fop 'fop-misc-trap fasl-output
)))))
1150 (dump-push (cdr entry
) fasl-output
))
1152 (dump-object (cdr entry
) fasl-output
)
1153 (dump-fop 'fop-fdefinition fasl-output
))))
1155 (dump-fop 'fop-misc-trap fasl-output
)))))
1157 ;; Dump the debug info.
1158 (let ((info (sb!c
::debug-info-for-component component
))
1159 (*dump-only-valid-structures
* nil
))
1160 (dump-object info fasl-output
)
1161 (let ((info-handle (dump-pop fasl-output
)))
1162 (dump-push info-handle fasl-output
)
1163 (push info-handle
(fasl-output-debug-info fasl-output
))))
1165 (let ((num-consts (- header-length sb
!vm
:code-trace-table-offset-slot
)))
1166 (cond ((and (< num-consts
#x100
) (< total-length
#x10000
))
1167 (dump-fop 'fop-small-code fasl-output
)
1168 (dump-byte num-consts fasl-output
)
1169 (dump-integer-as-n-bytes total-length
(/ sb
!vm
:n-word-bytes
2) fasl-output
))
1171 (dump-fop 'fop-code fasl-output
)
1172 (dump-word num-consts fasl-output
)
1173 (dump-word total-length fasl-output
))))
1175 ;; These two dumps are only ones which contribute to our
1176 ;; TOTAL-LENGTH value.
1177 (dump-segment code-segment code-length fasl-output
)
1178 (dump-i-vector packed-trace-table fasl-output
:data-only t
)
1180 ;; DUMP-FIXUPS does its own internal DUMP-FOPs: the bytes it
1181 ;; dumps aren't included in the TOTAL-LENGTH passed to our
1182 ;; FOP-CODE/FOP-SMALL-CODE fop.
1183 (dump-fixups fixups fasl-output
)
1185 (dump-fop 'fop-sanctify-for-execution fasl-output
)
1187 (let ((handle (dump-pop fasl-output
)))
1188 (dolist (patch (patches))
1189 (push (cons handle
(cdr patch
))
1190 (gethash (car patch
)
1191 (fasl-output-patch-table fasl-output
))))
1194 (defun dump-assembler-routines (code-segment length fixups routines file
)
1195 (dump-fop 'fop-assembler-code file
)
1196 (dump-word length file
)
1197 (write-segment-contents code-segment
(fasl-output-stream file
))
1198 (dolist (routine routines
)
1199 (dump-fop 'fop-normal-load file
)
1200 (let ((*cold-load-dump
* t
))
1201 (dump-object (car routine
) file
))
1202 (dump-fop 'fop-maybe-cold-load file
)
1203 (dump-fop 'fop-assembler-routine file
)
1204 (dump-word (label-position (cdr routine
)) file
))
1205 (dump-fixups fixups file
)
1206 (dump-fop 'fop-sanctify-for-execution file
)
1209 ;;; Dump a function entry data structure corresponding to ENTRY to
1210 ;;; FILE. CODE-HANDLE is the table offset of the code object for the
1212 (defun dump-one-entry (entry code-handle file
)
1213 (declare (type sb
!c
::entry-info entry
) (type index code-handle
)
1214 (type fasl-output file
))
1215 (let ((name (sb!c
::entry-info-name entry
)))
1216 (dump-push code-handle file
)
1217 (dump-object name file
)
1218 (dump-object (sb!c
::entry-info-arguments entry
) file
)
1219 (dump-object (sb!c
::entry-info-type entry
) file
)
1220 (dump-object (sb!c
::entry-info-xref entry
) file
)
1221 (dump-fop 'fop-fun-entry file
)
1222 (dump-word (label-position (sb!c
::entry-info-offset entry
)) file
)
1225 ;;; Alter the code object referenced by CODE-HANDLE at the specified
1226 ;;; OFFSET, storing the object referenced by ENTRY-HANDLE.
1227 (defun dump-alter-code-object (code-handle offset entry-handle file
)
1228 (declare (type index code-handle entry-handle offset
))
1229 (declare (type fasl-output file
))
1230 (dump-push code-handle file
)
1231 (dump-push entry-handle file
)
1232 (dump-fop* offset fop-byte-alter-code fop-alter-code file
)
1235 ;;; Dump the code, constants, etc. for component. We pass in the
1236 ;;; assembler fixups, code vector and node info.
1237 (defun fasl-dump-component (component
1243 (declare (type component component
) (list trace-table
))
1244 (declare (type fasl-output file
))
1246 (dump-fop 'fop-verify-table-size file
)
1247 (dump-word (fasl-output-table-free file
) file
)
1250 (let ((info (sb!c
::ir2-component-dyncount-info
(component-info component
))))
1252 (fasl-validate-structure info file
)))
1254 (let ((code-handle (dump-code-object component
1260 (2comp (component-info component
)))
1262 (dolist (entry (sb!c
::ir2-component-entries
2comp
))
1263 (let ((entry-handle (dump-one-entry entry code-handle file
)))
1264 (setf (gethash entry
(fasl-output-entry-table file
)) entry-handle
)
1265 (let ((old (gethash entry
(fasl-output-patch-table file
))))
1268 (dump-alter-code-object (car patch
)
1272 (remhash entry
(fasl-output-patch-table file
)))))))
1275 (defun dump-push-previously-dumped-fun (fun fasl-output
)
1276 (declare (type sb
!c
::clambda fun
))
1277 (let ((handle (gethash (sb!c
::leaf-info fun
)
1278 (fasl-output-entry-table fasl-output
))))
1280 (dump-push handle fasl-output
))
1283 ;;; Dump a FOP-FUNCALL to call an already-dumped top level lambda at
1285 (defun fasl-dump-toplevel-lambda-call (fun fasl-output
)
1286 (declare (type sb
!c
::clambda fun
))
1287 (dump-push-previously-dumped-fun fun fasl-output
)
1288 (dump-fop 'fop-funcall-for-effect fasl-output
)
1289 (dump-byte 0 fasl-output
)
1292 ;;; Dump a FOP-FSET to arrange static linkage (at cold init) between
1293 ;;; FUN-NAME and the already-dumped function whose dump handle is
1294 ;;; FUN-DUMP-HANDLE.
1296 (defun fasl-dump-cold-fset (fun-name fun-dump-handle fasl-output
)
1297 (declare (type fixnum fun-dump-handle
))
1298 (aver (legal-fun-name-p fun-name
))
1299 (dump-non-immediate-object fun-name fasl-output
)
1300 (dump-push fun-dump-handle fasl-output
)
1301 (dump-fop 'fop-fset fasl-output
)
1304 ;;; Compute the correct list of DEBUG-SOURCE structures and backpatch
1305 ;;; all of the dumped DEBUG-INFO structures. We clear the
1306 ;;; FASL-OUTPUT-DEBUG-INFO, so that subsequent components with
1307 ;;; different source info may be dumped.
1308 (defun fasl-dump-source-info (info fasl-output
)
1309 (declare (type sb
!c
::source-info info
))
1310 (let ((res (sb!c
::debug-source-for-info info
))
1311 (*dump-only-valid-structures
* nil
))
1312 (dump-object res fasl-output
)
1313 (let ((res-handle (dump-pop fasl-output
)))
1314 (dolist (info-handle (fasl-output-debug-info fasl-output
))
1315 (dump-push res-handle fasl-output
)
1316 (dump-fop 'fop-structset fasl-output
)
1317 (dump-word info-handle fasl-output
)
1318 ;; FIXME: what is this bare `2'? --njf, 2004-08-16
1319 (dump-word 2 fasl-output
))))
1320 (setf (fasl-output-debug-info fasl-output
) nil
)
1323 ;;;; dumping structures
1325 (defun dump-structure (struct file
)
1326 (when *dump-only-valid-structures
*
1327 (unless (gethash struct
(fasl-output-valid-structures file
))
1328 (error "attempt to dump invalid structure:~% ~S~%How did this happen?"
1330 (note-potential-circularity struct file
)
1331 (aver (%instance-ref struct
0))
1332 (do* ((length (%instance-length struct
))
1333 (ntagged (- length
(layout-n-untagged-slots (%instance-ref struct
0))))
1334 (circ (fasl-output-circularity-table file
))
1335 ;; last slot first on the stack, so that the layout is on top:
1336 (index (1- length
) (1- index
)))
1338 (dump-fop* length fop-small-struct fop-struct file
))
1339 (let* ((obj (if (>= index ntagged
)
1340 (%raw-instance-ref
/word struct
(- length index
1))
1341 (%instance-ref struct index
)))
1342 (ref (gethash obj circ
)))
1344 (aver (not (zerop index
)))
1345 (push (make-circularity :type
:struct-set
1349 :enclosing-object ref
)
1350 *circularities-detected
*)
1351 (sub-dump-object nil file
))
1353 (sub-dump-object obj file
))))))
1355 (defun dump-layout (obj file
)
1356 (when (layout-invalid obj
)
1357 (compiler-error "attempt to dump reference to obsolete class: ~S"
1358 (layout-classoid obj
)))
1359 (let ((name (classoid-name (layout-classoid obj
))))
1361 (compiler-error "dumping anonymous layout: ~S" obj
))
1362 (dump-fop 'fop-normal-load file
)
1363 (let ((*cold-load-dump
* t
))
1364 (dump-object name file
))
1365 (dump-fop 'fop-maybe-cold-load file
))
1366 (sub-dump-object (layout-inherits obj
) file
)
1367 (sub-dump-object (layout-depthoid obj
) file
)
1368 (sub-dump-object (layout-length obj
) file
)
1369 (sub-dump-object (layout-n-untagged-slots obj
) file
)
1370 (dump-fop 'fop-layout file
))