5 ;;; Define NAME as a fasl operation, with op-code FOP-CODE. PUSHP
6 ;;; describes what the body does to the fop stack:
8 ;;; The body might pop the fop stack. The result of the body is
9 ;;; pushed on the fop stack.
11 ;;; The body might pop the fop stack. The result of the body is
13 ;;; STACKP describes whether or not the body interacts with the fop stack.
14 (defmacro define-fop ((name fop-code &key (pushp t) (stackp t)) &rest forms)
18 `(with-fop-stack ,pushp ,@forms)
20 (%define-fop ',name ,fop-code)))
22 (defun %define-fop (name code)
23 (let ((oname (svref *fop-names* code)))
24 (when (and oname (not (eq oname name)))
25 (error "multiple names for fop code ~D: ~S and ~S" code name oname)))
26 ;; KLUDGE: It's mnemonically suboptimal to use 'FOP-CODE as the name of the
27 ;; tag which associates names with codes when it's also used as one of
28 ;; the names. Perhaps the fops named FOP-CODE and FOP-SMALL-CODE could
29 ;; be renamed to something more mnemonic? -- WHN 19990902
30 (let ((ocode (get name 'fop-code)))
31 (when (and ocode (/= ocode code))
32 (error "multiple codes for fop name ~S: ~D and ~D" name code ocode)))
33 (setf (svref *fop-names* code) name
34 (get name 'fop-code) code
35 (svref *fop-funs* code) (symbol-function name))
38 ;;; Define a pair of fops which are identical except that one reads
39 ;;; a four-byte argument while the other reads a one-byte argument. The
40 ;;; argument can be accessed by using the CLONE-ARG macro.
42 ;;; KLUDGE: It would be nice if the definition here encapsulated which
43 ;;; value ranges went with which fop variant, and chose the correct
44 ;;; fop code to use. Currently, since such logic isn't encapsulated,
45 ;;; we see callers doing stuff like
46 ;;; (cond ((and (< num-consts #x100) (< total-length #x10000))
47 ;;; (dump-fop 'sb!impl::fop-small-code file)
48 ;;; (dump-byte num-consts file)
49 ;;; (dump-integer-as-n-bytes total-length 2 file))
51 ;;; (dump-fop 'sb!impl::fop-code file)
52 ;;; (dump-word num-consts file)
53 ;;; (dump-word total-length file))))
54 ;;; in several places. It would be cleaner if this could be replaced with
56 ;;; (dump-fop file fop-code num-consts total-length)
57 ;;; Some of this logic is already in DUMP-FOP*, but that still requires the
58 ;;; caller to know that it's a 1-byte-arg/4-byte-arg cloned fop pair, and to
59 ;;; know both the 1-byte-arg and the 4-byte-arg fop names. -- WHN 19990902
60 (defmacro define-cloned-fops ((name code &key (pushp t) (stackp t))
61 (small-name small-code) &rest forms)
62 (aver (member pushp '(nil t)))
63 (aver (member stackp '(nil t)))
65 (macrolet ((clone-arg () '(read-word-arg)))
66 (define-fop (,name ,code :pushp ,pushp :stackp ,stackp) ,@forms))
67 (macrolet ((clone-arg () '(read-byte-arg)))
68 (define-fop (,small-name ,small-code :pushp ,pushp :stackp stackp) ,@forms))))
70 ;;; a helper function for reading string values from FASL files: sort
71 ;;; of like READ-SEQUENCE specialized for files of (UNSIGNED-BYTE 8),
72 ;;; with an automatic conversion from (UNSIGNED-BYTE 8) into CHARACTER
73 ;;; for each element read
74 (declaim (ftype (function (stream simple-string &optional index) (values))
75 read-string-as-bytes #!+sb-unicode read-string-as-words))
76 (defun read-string-as-bytes (stream string &optional (length (length string)))
79 (sb!xc:code-char (read-byte stream))))
80 ;; FIXME: The classic CMU CL code to do this was
81 ;; (READ-N-BYTES FILE STRING START END).
82 ;; It was changed for SBCL because we needed a portable version for
83 ;; bootstrapping. Benchmark the non-portable version and see whether it's
84 ;; significantly better than the portable version here. If it is, then use
85 ;; it as an alternate definition, protected with #-SB-XC-HOST.
88 (defun read-string-as-words (stream string &optional (length (length string)))
89 #+sb-xc-host (bug "READ-STRING-AS-WORDS called")
93 ;; FIXME: is this the same as READ-WORD-ARG?
94 (dotimes (k sb!vm:n-word-bytes (sb!xc:code-char code))
95 (setf code (logior code (ash (read-byte stream)
96 (* k sb!vm:n-byte-bits))))))))
99 ;;;; miscellaneous fops
101 ;;; FIXME: POP-STACK should be called something more mnemonic. (POP-FOP-STACK?
102 ;;; But that would conflict with PUSH-FOP-TABLE. Something, anyway..)
104 ;;; Setting this variable causes execution of a FOP-NOP4 to produce
105 ;;; output to *DEBUG-IO*. This can be handy when trying to follow the
106 ;;; progress of FASL loading.
108 (defvar *show-fop-nop4-p* nil)
110 ;;; CMU CL had a single no-op fop, FOP-NOP, with fop code 0. Since 0
111 ;;; occurs disproportionately often in fasl files for other reasons,
112 ;;; FOP-NOP is less than ideal for writing human-readable patterns
113 ;;; into fasl files for debugging purposes. There's no shortage of
114 ;;; unused fop codes, so we add this second NOP, which reads 4
115 ;;; arbitrary bytes and discards them.
116 (define-fop (fop-nop4 137 :stackp nil)
117 (let ((arg (read-arg 4)))
118 (declare (ignorable arg))
120 (when *show-fop-nop4-p*
121 (format *debug-io* "~&/FOP-NOP4 ARG=~W=#X~X~%" arg arg))))
123 (define-fop (fop-nop 0 :stackp nil))
124 (define-fop (fop-pop 1 :pushp nil) (push-fop-table (pop-stack)))
125 (define-fop (fop-push 2) (svref *current-fop-table* (read-word-arg)))
126 (define-fop (fop-byte-push 3) (svref *current-fop-table* (read-byte-arg)))
128 (define-fop (fop-empty-list 4) ())
129 (define-fop (fop-truth 5) t)
130 ;;; CMU CL had FOP-POP-FOR-EFFECT as fop 65, but it was never used and seemed
131 ;;; to have no possible use.
132 (define-fop (fop-misc-trap 66)
133 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
134 (error "FOP-MISC-TRAP can't be defined without %PRIMITIVE.")
136 (%primitive sb!c:make-other-immediate-type 0 sb!vm:unbound-marker-widetag))
138 (define-cloned-fops (fop-character 68) (fop-short-character 69)
139 (code-char (clone-arg)))
141 (define-cloned-fops (fop-struct 48) (fop-small-struct 49)
142 (let* ((size (clone-arg))
143 (res (%make-instance size)))
144 (declare (type index size))
145 (let* ((layout (pop-stack))
146 (nuntagged (layout-n-untagged-slots layout))
147 (ntagged (- size nuntagged)))
148 (setf (%instance-ref res 0) layout)
149 (dotimes (n (1- ntagged))
150 (declare (type index n))
151 (setf (%instance-ref res (1+ n)) (pop-stack)))
152 (dotimes (n nuntagged)
153 (declare (type index n))
154 (setf (%raw-instance-ref/word res (- nuntagged n 1)) (pop-stack))))
157 (define-fop (fop-layout 45)
158 (let ((nuntagged (pop-stack))
160 (depthoid (pop-stack))
161 (inherits (pop-stack))
163 (find-and-init-or-check-layout name length inherits depthoid nuntagged)))
165 (define-fop (fop-end-group 64 :stackp nil)
166 (/show0 "THROWing FASL-GROUP-END")
167 (throw 'fasl-group-end t))
169 ;;; In the normal loader, we just ignore these. GENESIS overwrites
170 ;;; FOP-MAYBE-COLD-LOAD with something that knows whether to revert to
171 ;;; cold-loading or not.
172 (define-fop (fop-normal-load 81 :stackp nil))
173 (define-fop (fop-maybe-cold-load 82 :stackp nil))
175 (define-fop (fop-verify-table-size 62 :stackp nil)
176 (let ((expected-index (read-word-arg)))
177 (unless (= *current-fop-table-index* expected-index)
178 (bug "fasl table of improper size"))))
179 (define-fop (fop-verify-empty-stack 63 :stackp nil)
180 (unless (zerop (length *fop-stack*))
181 (bug "fasl stack not empty when it should be")))
183 ;;;; fops for loading symbols
185 (macrolet (;; FIXME: Should all this code really be duplicated inside
186 ;; each fop? Perhaps it would be better for this shared
187 ;; code to live in FLET FROB1 and FLET FROB4 (for the
188 ;; two different sizes of counts).
189 (frob (name code name-size package)
190 (let ((n-package (gensym))
193 `(define-fop (,name ,code)
194 (prepare-for-fast-read-byte *fasl-input-stream*
195 (let ((,n-package ,package)
196 (,n-size (fast-read-u-integer ,name-size)))
197 (when (> ,n-size (length *fasl-symbol-buffer*))
198 (setq *fasl-symbol-buffer*
199 (make-string (* ,n-size 2))))
200 (done-with-fast-read-byte)
201 (let ((,n-buffer *fasl-symbol-buffer*))
203 (read-string-as-bytes *fasl-input-stream*
207 (#!+sb-unicode read-string-as-words
208 #!-sb-unicode read-string-as-bytes
212 (push-fop-table (without-package-locks
217 ;; Note: CMU CL had FOP-SYMBOL-SAVE and FOP-SMALL-SYMBOL-SAVE, but
218 ;; since they made the behavior of the fasloader depend on the
219 ;; *PACKAGE* variable, not only were they a pain to support (because
220 ;; they required various hacks to handle *PACKAGE*-manipulation
221 ;; forms) they were basically broken by design, because ANSI gives
222 ;; the user so much flexibility in manipulating *PACKAGE* at
223 ;; load-time that no reasonable hacks could possibly make things
224 ;; work right. The ones used in CMU CL certainly didn't, as shown by
226 ;; (IN-PACKAGE :CL-USER)
227 ;; (DEFVAR CL::*FOO* 'FOO-VALUE)
228 ;; (EVAL-WHEN (:COMPILE-TOPLEVEL :LOAD-TOPLEVEL :EXECUTE)
229 ;; (SETF *PACKAGE* (FIND-PACKAGE :CL)))
230 ;; which in CMU CL 2.4.9 defines a variable CL-USER::*FOO* instead of
231 ;; defining CL::*FOO*. Therefore, we don't use those fops in SBCL.
232 ;;(frob fop-symbol-save 6 4 *package*)
233 ;;(frob fop-small-symbol-save 7 1 *package*)
235 (frob fop-lisp-symbol-save 75 #.sb!vm:n-word-bytes *cl-package*)
236 (frob fop-lisp-small-symbol-save 76 1 *cl-package*)
237 (frob fop-keyword-symbol-save 77 #.sb!vm:n-word-bytes *keyword-package*)
238 (frob fop-keyword-small-symbol-save 78 1 *keyword-package*)
240 ;; FIXME: Because we don't have FOP-SYMBOL-SAVE any more, an enormous number
241 ;; of symbols will fall through to this case, probably resulting in bloated
243 ;; FOP-SYMBOL-IN-LAST-PACKAGE-SAVE/FOP-SMALL-SYMBOL-IN-LAST-PACKAGE-SAVE
244 ;; cloned fop pair could undo some of this bloat.
245 (frob fop-symbol-in-package-save 8 #.sb!vm:n-word-bytes
246 (svref *current-fop-table* (fast-read-u-integer #.sb!vm:n-word-bytes)))
247 (frob fop-small-symbol-in-package-save 9 1
248 (svref *current-fop-table* (fast-read-u-integer #.sb!vm:n-word-bytes)))
249 (frob fop-symbol-in-byte-package-save 10 #.sb!vm:n-word-bytes
250 (svref *current-fop-table* (fast-read-u-integer 1)))
251 (frob fop-small-symbol-in-byte-package-save 11 1
252 (svref *current-fop-table* (fast-read-u-integer 1))))
254 (define-cloned-fops (fop-uninterned-symbol-save 12)
255 (fop-uninterned-small-symbol-save 13)
256 (let* ((arg (clone-arg))
257 (res (make-string arg)))
259 (read-string-as-bytes *fasl-input-stream* res)
261 (read-string-as-words *fasl-input-stream* res)
262 (push-fop-table (make-symbol res))))
264 (define-fop (fop-package 14)
265 (find-undeleted-package-or-lose (pop-stack)))
267 ;;;; fops for loading numbers
269 ;;; Load a signed integer LENGTH bytes long from *FASL-INPUT-STREAM*.
270 (defun load-s-integer (length)
271 (declare (fixnum length))
272 ;; #+cmu (declare (optimize (inhibit-warnings 2)))
273 (do* ((index length (1- index))
274 (byte 0 (read-byte *fasl-input-stream*))
275 (result 0 (+ result (ash byte bits)))
278 (if (logbitp 7 byte) ; look at sign bit
279 (- result (ash 1 bits))
281 (declare (fixnum index byte bits))))
283 (define-cloned-fops (fop-integer 33) (fop-small-integer 34)
284 (load-s-integer (clone-arg)))
286 (define-fop (fop-word-integer 35)
287 (prepare-for-fast-read-byte *fasl-input-stream*
289 (fast-read-s-integer #.sb!vm:n-word-bytes)
290 (done-with-fast-read-byte))))
292 (define-fop (fop-byte-integer 36)
293 (prepare-for-fast-read-byte *fasl-input-stream*
295 (fast-read-s-integer 1)
296 (done-with-fast-read-byte))))
298 (define-fop (fop-ratio 70)
299 (let ((den (pop-stack)))
300 (%make-ratio (pop-stack) den)))
302 (define-fop (fop-complex 71)
303 (let ((im (pop-stack)))
304 (%make-complex (pop-stack) im)))
306 (macrolet ((fast-read-single-float ()
307 '(make-single-float (fast-read-s-integer 4)))
308 (fast-read-double-float ()
309 '(let ((lo (fast-read-u-integer 4)))
310 (make-double-float (fast-read-s-integer 4) lo))))
311 (macrolet ((define-complex-fop (name fop-code type)
312 (let ((reader (symbolicate "FAST-READ-" type)))
313 `(define-fop (,name ,fop-code)
314 (prepare-for-fast-read-byte *fasl-input-stream*
316 (complex (,reader) (,reader))
317 (done-with-fast-read-byte))))))
318 (define-float-fop (name fop-code type)
319 (let ((reader (symbolicate "FAST-READ-" type)))
320 `(define-fop (,name ,fop-code)
321 (prepare-for-fast-read-byte *fasl-input-stream*
324 (done-with-fast-read-byte)))))))
325 (define-complex-fop fop-complex-single-float 72 single-float)
326 (define-complex-fop fop-complex-double-float 73 double-float)
328 (define-complex-fop fop-complex-long-float 67 long-float)
329 (define-float-fop fop-single-float 46 single-float)
330 (define-float-fop fop-double-float 47 double-float)
332 (define-float-fop fop-long-float 52 long-float)))
337 (define-fop (fop-list 15)
338 (do ((res () (cons (pop-stack) res))
339 (n (read-byte-arg) (1- n)))
341 (declare (type index n))))
343 (define-fop (fop-list* 16)
344 (do ((res (pop-stack) (cons (pop-stack) res))
345 (n (read-byte-arg) (1- n)))
347 (declare (type index n))))
349 (macrolet ((frob (name op fun n)
350 `(define-fop (,name ,op)
351 (call-with-popped-args ,fun ,n))))
353 (frob fop-list-1 17 list 1)
354 (frob fop-list-2 18 list 2)
355 (frob fop-list-3 19 list 3)
356 (frob fop-list-4 20 list 4)
357 (frob fop-list-5 21 list 5)
358 (frob fop-list-6 22 list 6)
359 (frob fop-list-7 23 list 7)
360 (frob fop-list-8 24 list 8)
362 (frob fop-list*-1 25 list* 2)
363 (frob fop-list*-2 26 list* 3)
364 (frob fop-list*-3 27 list* 4)
365 (frob fop-list*-4 28 list* 5)
366 (frob fop-list*-5 29 list* 6)
367 (frob fop-list*-6 30 list* 7)
368 (frob fop-list*-7 31 list* 8)
369 (frob fop-list*-8 32 list* 9))
371 ;;;; fops for loading arrays
373 (define-cloned-fops (fop-base-string 37) (fop-small-base-string 38)
374 (let* ((arg (clone-arg))
375 (res (make-string arg :element-type 'base-char)))
376 (read-string-as-bytes *fasl-input-stream* res)
382 (define-cloned-fops (fop-character-string 161) (fop-small-character-string 162)
383 (bug "CHARACTER-STRING FOP encountered"))
386 (define-cloned-fops (fop-character-string 161) (fop-small-character-string 162)
387 (let* ((arg (clone-arg))
388 (res (make-string arg)))
389 (read-string-as-words *fasl-input-stream* res)
392 (define-cloned-fops (fop-vector 39) (fop-small-vector 40)
393 (let* ((size (clone-arg))
394 (res (make-array size)))
395 (declare (fixnum size))
396 (do ((n (1- size) (1- n)))
398 (setf (svref res n) (pop-stack)))
401 (define-fop (fop-array 83)
402 (let* ((rank (read-word-arg))
404 (length (length vec))
405 (res (make-array-header sb!vm:simple-array-widetag rank)))
406 (declare (simple-array vec)
407 (type (unsigned-byte #.(- sb!vm:n-word-bits sb!vm:n-widetag-bits)) rank))
408 (set-array-header res vec length nil 0
410 (dimensions () (cons (pop-stack) dimensions)))
411 ((zerop i) dimensions)
412 (declare (type index i)))
416 (define-fop (fop-single-float-vector 84)
417 (let* ((length (read-word-arg))
418 (result (make-array length :element-type 'single-float)))
419 (read-n-bytes *fasl-input-stream* result 0 (* length 4))
422 (define-fop (fop-double-float-vector 85)
423 (let* ((length (read-word-arg))
424 (result (make-array length :element-type 'double-float)))
425 (read-n-bytes *fasl-input-stream* result 0 (* length 8))
428 (define-fop (fop-complex-single-float-vector 86)
429 (let* ((length (read-word-arg))
430 (result (make-array length :element-type '(complex single-float))))
431 (read-n-bytes *fasl-input-stream* result 0 (* length 8))
434 (define-fop (fop-complex-double-float-vector 87)
435 (let* ((length (read-word-arg))
436 (result (make-array length :element-type '(complex double-float))))
437 (read-n-bytes *fasl-input-stream* result 0 (* length 16))
441 ;;; *** NOT *** the FOP-INT-VECTOR as currently documented in rtguts.
442 ;;; Size must be a directly supported I-vector element size, with no
443 ;;; extra bits. This must be packed according to the local
444 ;;; byte-ordering, allowing us to directly read the bits.
445 (define-fop (fop-int-vector 43)
446 (prepare-for-fast-read-byte *fasl-input-stream*
447 (let* ((len (fast-read-u-integer #.sb!vm:n-word-bytes))
448 (size (fast-read-byte))
450 (0 (make-array len :element-type 'nil))
451 (1 (make-array len :element-type 'bit))
452 (2 (make-array len :element-type '(unsigned-byte 2)))
453 (4 (make-array len :element-type '(unsigned-byte 4)))
454 (7 (prog1 (make-array len :element-type '(unsigned-byte 7))
456 (8 (make-array len :element-type '(unsigned-byte 8)))
457 (15 (prog1 (make-array len :element-type '(unsigned-byte 15))
459 (16 (make-array len :element-type '(unsigned-byte 16)))
460 (31 (prog1 (make-array len :element-type '(unsigned-byte 31))
462 (32 (make-array len :element-type '(unsigned-byte 32)))
463 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
464 (63 (prog1 (make-array len :element-type '(unsigned-byte 63))
466 (64 (make-array len :element-type '(unsigned-byte 64)))
467 (t (bug "losing i-vector element size: ~S" size)))))
468 (declare (type index len))
469 (done-with-fast-read-byte)
470 (read-n-bytes *fasl-input-stream*
473 (ceiling (the index (* size len)) sb!vm:n-byte-bits))
476 ;;; This is the same as FOP-INT-VECTOR, except this is for signed
478 (define-fop (fop-signed-int-vector 50)
479 (prepare-for-fast-read-byte *fasl-input-stream*
480 (let* ((len (fast-read-u-integer #.sb!vm:n-word-bytes))
481 (size (fast-read-byte))
483 (8 (make-array len :element-type '(signed-byte 8)))
484 (16 (make-array len :element-type '(signed-byte 16)))
485 #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
486 (29 (prog1 (make-array len :element-type '(unsigned-byte 29))
488 #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
489 (30 (prog1 (make-array len :element-type '(signed-byte 30))
491 (32 (make-array len :element-type '(signed-byte 32)))
492 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
493 (60 (prog1 (make-array len :element-type '(unsigned-byte 60))
495 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
496 (61 (prog1 (make-array len :element-type '(signed-byte 61))
498 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
499 (64 (make-array len :element-type '(signed-byte 64)))
500 (t (bug "losing si-vector element size: ~S" size)))))
501 (declare (type index len))
502 (done-with-fast-read-byte)
503 (read-n-bytes *fasl-input-stream*
506 (ceiling (the index (* size len)) sb!vm:n-byte-bits))
509 (define-fop (fop-eval 53)
510 (let ((result (eval (pop-stack))))
511 ;; FIXME: CMU CL had this code here:
512 ;; (when *load-print*
516 ;; Unfortunately, this dependence on the *LOAD-PRINT* global
517 ;; variable is non-ANSI, so for now we've just punted printing in
521 (define-fop (fop-eval-for-effect 54 :pushp nil)
522 (let ((result (eval (pop-stack))))
523 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
524 (declare (ignore result))
525 #+nil (when *load-print*
530 (define-fop (fop-funcall 55)
531 (let ((arg (read-byte-arg)))
533 (funcall (pop-stack))
534 (do ((args () (cons (pop-stack) args))
536 ((zerop n) (apply (pop-stack) args))
537 (declare (type index n))))))
539 (define-fop (fop-funcall-for-effect 56 :pushp nil)
540 (let ((arg (read-byte-arg)))
542 (funcall (pop-stack))
543 (do ((args () (cons (pop-stack) args))
545 ((zerop n) (apply (pop-stack) args))
546 (declare (type index n))))))
548 ;;;; fops for fixing up circularities
550 (define-fop (fop-rplaca 200 :pushp nil)
551 (let ((obj (svref *current-fop-table* (read-word-arg)))
552 (idx (read-word-arg))
554 (setf (car (nthcdr idx obj)) val)))
556 (define-fop (fop-rplacd 201 :pushp nil)
557 (let ((obj (svref *current-fop-table* (read-word-arg)))
558 (idx (read-word-arg))
560 (setf (cdr (nthcdr idx obj)) val)))
562 (define-fop (fop-svset 202 :pushp nil)
563 (let* ((obi (read-word-arg))
564 (obj (svref *current-fop-table* obi))
565 (idx (read-word-arg))
568 (setf (%instance-ref obj idx) val)
569 (setf (svref obj idx) val))))
571 (define-fop (fop-structset 204 :pushp nil)
572 (setf (%instance-ref (svref *current-fop-table* (read-word-arg))
576 ;;; In the original CMUCL code, this actually explicitly declared PUSHP
577 ;;; to be T, even though that's what it defaults to in DEFINE-FOP.
578 (define-fop (fop-nthcdr 203)
579 (nthcdr (read-word-arg) (pop-stack)))
581 ;;;; fops for loading functions
583 ;;; (In CMU CL there was a FOP-CODE-FORMAT (47) which was
584 ;;; conventionally placed at the beginning of each fasl file to test
585 ;;; for compatibility between the fasl file and the CMU CL which
586 ;;; loaded it. In SBCL, this functionality has been replaced by
587 ;;; putting the implementation and version in required fields in the
588 ;;; fasl file header.)
590 (define-fop (fop-code 58 :stackp nil)
591 (load-code (read-word-arg) (read-word-arg)))
593 (define-fop (fop-small-code 59 :stackp nil)
594 (load-code (read-byte-arg) (read-halfword-arg)))
596 (define-fop (fop-fdefinition 60)
597 (fdefinition-object (pop-stack) t))
599 (define-fop (fop-sanctify-for-execution 61)
600 (let ((component (pop-stack)))
601 (sb!vm:sanctify-for-execution component)
604 (define-fop (fop-fset 74 :pushp nil)
605 ;; Ordinary, not-for-cold-load code shouldn't need to mess with this
606 ;; at all, since it's only used as part of the conspiracy between
607 ;; the cross-compiler and GENESIS to statically link FDEFINITIONs
609 (warn "~@<FOP-FSET seen in ordinary load (not cold load) -- quite strange! ~
610 If you didn't do something strange to cause this, please report it as a ~
612 ;; Unlike CMU CL, we don't treat this as a no-op in ordinary code.
613 ;; If the user (or, more likely, developer) is trying to reload
614 ;; compiled-for-cold-load code into a warm SBCL, we'll do a warm
615 ;; assignment. (This is partly for abstract tidiness, since the warm
616 ;; assignment is the closest analogy to what happens at cold load,
617 ;; and partly because otherwise our compiled-for-cold-load code will
618 ;; fail, since in SBCL things like compiled-for-cold-load %DEFUN
619 ;; depend more strongly than in CMU CL on FOP-FSET actually doing
621 (let ((fn (pop-stack))
623 (setf (fdefinition name) fn)))
625 ;;; Modify a slot in a CONSTANTS object.
626 (define-cloned-fops (fop-alter-code 140 :pushp nil) (fop-byte-alter-code 141)
627 (let ((value (pop-stack))
629 (setf (code-header-ref code (clone-arg)) value)
632 (define-fop (fop-fun-entry 142)
633 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
634 (error "FOP-FUN-ENTRY can't be defined without %PRIMITIVE.")
636 (let ((type (pop-stack))
637 (arglist (pop-stack))
639 (code-object (pop-stack))
640 (offset (read-word-arg)))
641 (declare (type index offset))
642 (unless (zerop (logand offset sb!vm:lowtag-mask))
643 (bug "unaligned function object, offset = #X~X" offset))
644 (let ((fun (%primitive sb!c:compute-fun code-object offset)))
645 (setf (%simple-fun-self fun) fun)
646 (setf (%simple-fun-next fun) (%code-entry-points code-object))
647 (setf (%code-entry-points code-object) fun)
648 (setf (%simple-fun-name fun) name)
649 (setf (%simple-fun-arglist fun) arglist)
650 (setf (%simple-fun-type fun) type)
651 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
652 #+nil (when *load-print*
654 (format t "~S defined~%" fun))
657 ;;;; Some Dylan FOPs used to live here. By 1 November 1998 the code
658 ;;;; was sufficiently stale that the functions it called were no
659 ;;;; longer defined, so I (William Harold Newman) deleted it.
661 ;;;; In case someone in the future is trying to make sense of FOP layout,
662 ;;;; it might be worth recording that the Dylan FOPs were
663 ;;;; 100 FOP-DYLAN-SYMBOL-SAVE
664 ;;;; 101 FOP-SMALL-DYLAN-SYMBOL-SAVE
665 ;;;; 102 FOP-DYLAN-KEYWORD-SAVE
666 ;;;; 103 FOP-SMALL-DYLAN-KEYWORD-SAVE
667 ;;;; 104 FOP-DYLAN-VARINFO-VALUE
669 ;;;; assemblerish fops
671 (define-fop (fop-assembler-code 144)
672 (error "cannot load assembler code except at cold load"))
674 (define-fop (fop-assembler-routine 145)
675 (error "cannot load assembler code except at cold load"))
677 (define-fop (fop-foreign-fixup 147)
678 (let* ((kind (pop-stack))
679 (code-object (pop-stack))
680 (len (read-byte-arg))
681 (sym (make-string len :element-type 'base-char)))
682 (read-n-bytes *fasl-input-stream* sym 0 len)
683 (sb!vm:fixup-code-object code-object
685 (foreign-symbol-address sym)
689 (define-fop (fop-assembler-fixup 148)
690 (let ((routine (pop-stack))
692 (code-object (pop-stack)))
693 (multiple-value-bind (value found) (gethash routine *assembler-routines*)
695 (error "undefined assembler routine: ~S" routine))
696 (sb!vm:fixup-code-object code-object (read-word-arg) value kind))
699 (define-fop (fop-code-object-fixup 149)
700 (let ((kind (pop-stack))
701 (code-object (pop-stack)))
702 ;; Note: We don't have to worry about GC moving the code-object after
703 ;; the GET-LISP-OBJ-ADDRESS and before that value is deposited, because
704 ;; we can only use code-object fixups when code-objects don't move.
705 (sb!vm:fixup-code-object code-object (read-word-arg)
706 (get-lisp-obj-address code-object) kind)
710 (define-fop (fop-foreign-dataref-fixup 150)
711 (let* ((kind (pop-stack))
712 (code-object (pop-stack))
713 (len (read-byte-arg))
714 (sym (make-string len :element-type 'base-char)))
715 (read-n-bytes *fasl-input-stream* sym 0 len)
716 (sb!vm:fixup-code-object code-object
718 (foreign-symbol-address sym t)