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 (do ((n (1- size) (1- n)))
147 (declare (type index-or-minus-1 n))
148 (setf (%instance-ref res n) (pop-stack)))
151 (define-fop (fop-layout 45)
152 (let ((length (pop-stack))
153 (depthoid (pop-stack))
154 (inherits (pop-stack))
156 (find-and-init-or-check-layout name length inherits depthoid)))
158 (define-fop (fop-end-group 64 :stackp nil)
159 (/show0 "THROWing FASL-GROUP-END")
160 (throw 'fasl-group-end t))
162 ;;; In the normal loader, we just ignore these. GENESIS overwrites
163 ;;; FOP-MAYBE-COLD-LOAD with something that knows whether to revert to
164 ;;; cold-loading or not.
165 (define-fop (fop-normal-load 81 :stackp nil))
166 (define-fop (fop-maybe-cold-load 82 :stackp nil))
168 (define-fop (fop-verify-table-size 62 :stackp nil)
169 (let ((expected-index (read-word-arg)))
170 (unless (= *current-fop-table-index* expected-index)
171 (bug "fasl table of improper size"))))
172 (define-fop (fop-verify-empty-stack 63 :stackp nil)
173 (unless (zerop (length *fop-stack*))
174 (bug "fasl stack not empty when it should be")))
176 ;;;; fops for loading symbols
178 (macrolet (;; FIXME: Should all this code really be duplicated inside
179 ;; each fop? Perhaps it would be better for this shared
180 ;; code to live in FLET FROB1 and FLET FROB4 (for the
181 ;; two different sizes of counts).
182 (frob (name code name-size package)
183 (let ((n-package (gensym))
186 `(define-fop (,name ,code)
187 (prepare-for-fast-read-byte *fasl-input-stream*
188 (let ((,n-package ,package)
189 (,n-size (fast-read-u-integer ,name-size)))
190 (when (> ,n-size (length *fasl-symbol-buffer*))
191 (setq *fasl-symbol-buffer*
192 (make-string (* ,n-size 2))))
193 (done-with-fast-read-byte)
194 (let ((,n-buffer *fasl-symbol-buffer*))
196 (read-string-as-bytes *fasl-input-stream*
200 (#!+sb-unicode read-string-as-words
201 #!-sb-unicode read-string-as-bytes
205 (push-fop-table (without-package-locks
210 ;; Note: CMU CL had FOP-SYMBOL-SAVE and FOP-SMALL-SYMBOL-SAVE, but
211 ;; since they made the behavior of the fasloader depend on the
212 ;; *PACKAGE* variable, not only were they a pain to support (because
213 ;; they required various hacks to handle *PACKAGE*-manipulation
214 ;; forms) they were basically broken by design, because ANSI gives
215 ;; the user so much flexibility in manipulating *PACKAGE* at
216 ;; load-time that no reasonable hacks could possibly make things
217 ;; work right. The ones used in CMU CL certainly didn't, as shown by
219 ;; (IN-PACKAGE :CL-USER)
220 ;; (DEFVAR CL::*FOO* 'FOO-VALUE)
221 ;; (EVAL-WHEN (:COMPILE-TOPLEVEL :LOAD-TOPLEVEL :EXECUTE)
222 ;; (SETF *PACKAGE* (FIND-PACKAGE :CL)))
223 ;; which in CMU CL 2.4.9 defines a variable CL-USER::*FOO* instead of
224 ;; defining CL::*FOO*. Therefore, we don't use those fops in SBCL.
225 ;;(frob fop-symbol-save 6 4 *package*)
226 ;;(frob fop-small-symbol-save 7 1 *package*)
228 (frob fop-lisp-symbol-save 75 #.sb!vm:n-word-bytes *cl-package*)
229 (frob fop-lisp-small-symbol-save 76 1 *cl-package*)
230 (frob fop-keyword-symbol-save 77 #.sb!vm:n-word-bytes *keyword-package*)
231 (frob fop-keyword-small-symbol-save 78 1 *keyword-package*)
233 ;; FIXME: Because we don't have FOP-SYMBOL-SAVE any more, an enormous number
234 ;; of symbols will fall through to this case, probably resulting in bloated
236 ;; FOP-SYMBOL-IN-LAST-PACKAGE-SAVE/FOP-SMALL-SYMBOL-IN-LAST-PACKAGE-SAVE
237 ;; cloned fop pair could undo some of this bloat.
238 (frob fop-symbol-in-package-save 8 #.sb!vm:n-word-bytes
239 (svref *current-fop-table* (fast-read-u-integer #.sb!vm:n-word-bytes)))
240 (frob fop-small-symbol-in-package-save 9 1
241 (svref *current-fop-table* (fast-read-u-integer #.sb!vm:n-word-bytes)))
242 (frob fop-symbol-in-byte-package-save 10 #.sb!vm:n-word-bytes
243 (svref *current-fop-table* (fast-read-u-integer 1)))
244 (frob fop-small-symbol-in-byte-package-save 11 1
245 (svref *current-fop-table* (fast-read-u-integer 1))))
247 (define-cloned-fops (fop-uninterned-symbol-save 12)
248 (fop-uninterned-small-symbol-save 13)
249 (let* ((arg (clone-arg))
250 (res (make-string arg)))
252 (read-string-as-bytes *fasl-input-stream* res)
254 (read-string-as-words *fasl-input-stream* res)
255 (push-fop-table (make-symbol res))))
257 (define-fop (fop-package 14)
258 (find-undeleted-package-or-lose (pop-stack)))
260 ;;;; fops for loading numbers
262 ;;; Load a signed integer LENGTH bytes long from *FASL-INPUT-STREAM*.
263 (defun load-s-integer (length)
264 (declare (fixnum length))
265 ;; #+cmu (declare (optimize (inhibit-warnings 2)))
266 (do* ((index length (1- index))
267 (byte 0 (read-byte *fasl-input-stream*))
268 (result 0 (+ result (ash byte bits)))
271 (if (logbitp 7 byte) ; look at sign bit
272 (- result (ash 1 bits))
274 (declare (fixnum index byte bits))))
276 (define-cloned-fops (fop-integer 33) (fop-small-integer 34)
277 (load-s-integer (clone-arg)))
279 (define-fop (fop-word-integer 35)
280 (prepare-for-fast-read-byte *fasl-input-stream*
282 (fast-read-s-integer #.sb!vm:n-word-bytes)
283 (done-with-fast-read-byte))))
285 (define-fop (fop-byte-integer 36)
286 (prepare-for-fast-read-byte *fasl-input-stream*
288 (fast-read-s-integer 1)
289 (done-with-fast-read-byte))))
291 (define-fop (fop-ratio 70)
292 (let ((den (pop-stack)))
293 (%make-ratio (pop-stack) den)))
295 (define-fop (fop-complex 71)
296 (let ((im (pop-stack)))
297 (%make-complex (pop-stack) im)))
299 (macrolet ((fast-read-single-float ()
300 '(make-single-float (fast-read-s-integer 4)))
301 (fast-read-double-float ()
302 '(let ((lo (fast-read-u-integer 4)))
303 (make-double-float (fast-read-s-integer 4) lo))))
304 (macrolet ((define-complex-fop (name fop-code type)
305 (let ((reader (symbolicate "FAST-READ-" type)))
306 `(define-fop (,name ,fop-code)
307 (prepare-for-fast-read-byte *fasl-input-stream*
309 (complex (,reader) (,reader))
310 (done-with-fast-read-byte))))))
311 (define-float-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*
317 (done-with-fast-read-byte)))))))
318 (define-complex-fop fop-complex-single-float 72 single-float)
319 (define-complex-fop fop-complex-double-float 73 double-float)
321 (define-complex-fop fop-complex-long-float 67 long-float)
322 (define-float-fop fop-single-float 46 single-float)
323 (define-float-fop fop-double-float 47 double-float)
325 (define-float-fop fop-long-float 52 long-float)))
330 (define-fop (fop-list 15)
331 (do ((res () (cons (pop-stack) res))
332 (n (read-byte-arg) (1- n)))
334 (declare (type index n))))
336 (define-fop (fop-list* 16)
337 (do ((res (pop-stack) (cons (pop-stack) res))
338 (n (read-byte-arg) (1- n)))
340 (declare (type index n))))
342 (macrolet ((frob (name op fun n)
343 `(define-fop (,name ,op)
344 (call-with-popped-args ,fun ,n))))
346 (frob fop-list-1 17 list 1)
347 (frob fop-list-2 18 list 2)
348 (frob fop-list-3 19 list 3)
349 (frob fop-list-4 20 list 4)
350 (frob fop-list-5 21 list 5)
351 (frob fop-list-6 22 list 6)
352 (frob fop-list-7 23 list 7)
353 (frob fop-list-8 24 list 8)
355 (frob fop-list*-1 25 list* 2)
356 (frob fop-list*-2 26 list* 3)
357 (frob fop-list*-3 27 list* 4)
358 (frob fop-list*-4 28 list* 5)
359 (frob fop-list*-5 29 list* 6)
360 (frob fop-list*-6 30 list* 7)
361 (frob fop-list*-7 31 list* 8)
362 (frob fop-list*-8 32 list* 9))
364 ;;;; fops for loading arrays
366 (define-cloned-fops (fop-base-string 37) (fop-small-base-string 38)
367 (let* ((arg (clone-arg))
368 (res (make-string arg :element-type 'base-char)))
369 (read-string-as-bytes *fasl-input-stream* res)
375 (define-cloned-fops (fop-character-string 161) (fop-small-character-string 162)
376 (bug "CHARACTER-STRING FOP encountered"))
379 (define-cloned-fops (fop-character-string 161) (fop-small-character-string 162)
380 (let* ((arg (clone-arg))
381 (res (make-string arg)))
382 (read-string-as-words *fasl-input-stream* res)
385 (define-cloned-fops (fop-vector 39) (fop-small-vector 40)
386 (let* ((size (clone-arg))
387 (res (make-array size)))
388 (declare (fixnum size))
389 (do ((n (1- size) (1- n)))
391 (setf (svref res n) (pop-stack)))
394 (define-fop (fop-array 83)
395 (let* ((rank (read-word-arg))
397 (length (length vec))
398 (res (make-array-header sb!vm:simple-array-widetag rank)))
399 (declare (simple-array vec)
400 (type (unsigned-byte #.(- sb!vm:n-word-bits sb!vm:n-widetag-bits)) rank))
401 (set-array-header res vec length nil 0
403 (dimensions () (cons (pop-stack) dimensions)))
404 ((zerop i) dimensions)
405 (declare (type index i)))
409 (define-fop (fop-single-float-vector 84)
410 (let* ((length (read-word-arg))
411 (result (make-array length :element-type 'single-float)))
412 (read-n-bytes *fasl-input-stream* result 0 (* length 4))
415 (define-fop (fop-double-float-vector 85)
416 (let* ((length (read-word-arg))
417 (result (make-array length :element-type 'double-float)))
418 (read-n-bytes *fasl-input-stream* result 0 (* length 8))
421 (define-fop (fop-complex-single-float-vector 86)
422 (let* ((length (read-word-arg))
423 (result (make-array length :element-type '(complex single-float))))
424 (read-n-bytes *fasl-input-stream* result 0 (* length 8))
427 (define-fop (fop-complex-double-float-vector 87)
428 (let* ((length (read-word-arg))
429 (result (make-array length :element-type '(complex double-float))))
430 (read-n-bytes *fasl-input-stream* result 0 (* length 16))
434 ;;; *** NOT *** the FOP-INT-VECTOR as currently documented in rtguts.
435 ;;; Size must be a directly supported I-vector element size, with no
436 ;;; extra bits. This must be packed according to the local
437 ;;; byte-ordering, allowing us to directly read the bits.
438 (define-fop (fop-int-vector 43)
439 (prepare-for-fast-read-byte *fasl-input-stream*
440 (let* ((len (fast-read-u-integer #.sb!vm:n-word-bytes))
441 (size (fast-read-byte))
443 (0 (make-array len :element-type 'nil))
444 (1 (make-array len :element-type 'bit))
445 (2 (make-array len :element-type '(unsigned-byte 2)))
446 (4 (make-array len :element-type '(unsigned-byte 4)))
447 (7 (prog1 (make-array len :element-type '(unsigned-byte 7))
449 (8 (make-array len :element-type '(unsigned-byte 8)))
450 (15 (prog1 (make-array len :element-type '(unsigned-byte 15))
452 (16 (make-array len :element-type '(unsigned-byte 16)))
453 (31 (prog1 (make-array len :element-type '(unsigned-byte 31))
455 (32 (make-array len :element-type '(unsigned-byte 32)))
456 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
457 (63 (prog1 (make-array len :element-type '(unsigned-byte 63))
459 (64 (make-array len :element-type '(unsigned-byte 64)))
460 (t (bug "losing i-vector element size: ~S" size)))))
461 (declare (type index len))
462 (done-with-fast-read-byte)
463 (read-n-bytes *fasl-input-stream*
466 (ceiling (the index (* size len)) sb!vm:n-byte-bits))
469 ;;; This is the same as FOP-INT-VECTOR, except this is for signed
471 (define-fop (fop-signed-int-vector 50)
472 (prepare-for-fast-read-byte *fasl-input-stream*
473 (let* ((len (fast-read-u-integer #.sb!vm:n-word-bytes))
474 (size (fast-read-byte))
476 (8 (make-array len :element-type '(signed-byte 8)))
477 (16 (make-array len :element-type '(signed-byte 16)))
478 #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
479 (29 (prog1 (make-array len :element-type '(unsigned-byte 29))
481 #!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or))
482 (30 (prog1 (make-array len :element-type '(signed-byte 30))
484 (32 (make-array len :element-type '(signed-byte 32)))
485 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
486 (60 (prog1 (make-array len :element-type '(unsigned-byte 60))
488 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
489 (61 (prog1 (make-array len :element-type '(signed-byte 61))
491 #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or))
492 (64 (make-array len :element-type '(signed-byte 64)))
493 (t (bug "losing si-vector element size: ~S" size)))))
494 (declare (type index len))
495 (done-with-fast-read-byte)
496 (read-n-bytes *fasl-input-stream*
499 (ceiling (the index (* size len)) sb!vm:n-byte-bits))
502 (define-fop (fop-eval 53)
503 (let ((result (eval (pop-stack))))
504 ;; FIXME: CMU CL had this code here:
505 ;; (when *load-print*
509 ;; Unfortunately, this dependence on the *LOAD-PRINT* global
510 ;; variable is non-ANSI, so for now we've just punted printing in
514 (define-fop (fop-eval-for-effect 54 :pushp nil)
515 (let ((result (eval (pop-stack))))
516 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
517 (declare (ignore result))
518 #+nil (when *load-print*
523 (define-fop (fop-funcall 55)
524 (let ((arg (read-byte-arg)))
526 (funcall (pop-stack))
527 (do ((args () (cons (pop-stack) args))
529 ((zerop n) (apply (pop-stack) args))
530 (declare (type index n))))))
532 (define-fop (fop-funcall-for-effect 56 :pushp nil)
533 (let ((arg (read-byte-arg)))
535 (funcall (pop-stack))
536 (do ((args () (cons (pop-stack) args))
538 ((zerop n) (apply (pop-stack) args))
539 (declare (type index n))))))
541 ;;;; fops for fixing up circularities
543 (define-fop (fop-rplaca 200 :pushp nil)
544 (let ((obj (svref *current-fop-table* (read-word-arg)))
545 (idx (read-word-arg))
547 (setf (car (nthcdr idx obj)) val)))
549 (define-fop (fop-rplacd 201 :pushp nil)
550 (let ((obj (svref *current-fop-table* (read-word-arg)))
551 (idx (read-word-arg))
553 (setf (cdr (nthcdr idx obj)) val)))
555 (define-fop (fop-svset 202 :pushp nil)
556 (let* ((obi (read-word-arg))
557 (obj (svref *current-fop-table* obi))
558 (idx (read-word-arg))
560 (if (typep obj 'instance)
561 (setf (%instance-ref obj idx) val)
562 (setf (svref obj idx) val))))
564 (define-fop (fop-structset 204 :pushp nil)
565 (setf (%instance-ref (svref *current-fop-table* (read-word-arg))
569 ;;; In the original CMUCL code, this actually explicitly declared PUSHP
570 ;;; to be T, even though that's what it defaults to in DEFINE-FOP.
571 (define-fop (fop-nthcdr 203)
572 (nthcdr (read-word-arg) (pop-stack)))
574 ;;;; fops for loading functions
576 ;;; (In CMU CL there was a FOP-CODE-FORMAT (47) which was
577 ;;; conventionally placed at the beginning of each fasl file to test
578 ;;; for compatibility between the fasl file and the CMU CL which
579 ;;; loaded it. In SBCL, this functionality has been replaced by
580 ;;; putting the implementation and version in required fields in the
581 ;;; fasl file header.)
583 (define-fop (fop-code 58 :stackp nil)
584 (load-code (read-word-arg) (read-word-arg)))
586 (define-fop (fop-small-code 59 :stackp nil)
587 (load-code (read-byte-arg) (read-halfword-arg)))
589 (define-fop (fop-fdefinition 60)
590 (fdefinition-object (pop-stack) t))
592 (define-fop (fop-sanctify-for-execution 61)
593 (let ((component (pop-stack)))
594 (sb!vm:sanctify-for-execution component)
597 (define-fop (fop-fset 74 :pushp nil)
598 ;; Ordinary, not-for-cold-load code shouldn't need to mess with this
599 ;; at all, since it's only used as part of the conspiracy between
600 ;; the cross-compiler and GENESIS to statically link FDEFINITIONs
602 (warn "~@<FOP-FSET seen in ordinary load (not cold load) -- quite strange! ~
603 If you didn't do something strange to cause this, please report it as a ~
605 ;; Unlike CMU CL, we don't treat this as a no-op in ordinary code.
606 ;; If the user (or, more likely, developer) is trying to reload
607 ;; compiled-for-cold-load code into a warm SBCL, we'll do a warm
608 ;; assignment. (This is partly for abstract tidiness, since the warm
609 ;; assignment is the closest analogy to what happens at cold load,
610 ;; and partly because otherwise our compiled-for-cold-load code will
611 ;; fail, since in SBCL things like compiled-for-cold-load %DEFUN
612 ;; depend more strongly than in CMU CL on FOP-FSET actually doing
614 (let ((fn (pop-stack))
616 (setf (fdefinition name) fn)))
618 ;;; Modify a slot in a CONSTANTS object.
619 (define-cloned-fops (fop-alter-code 140 :pushp nil) (fop-byte-alter-code 141)
620 (let ((value (pop-stack))
622 (setf (code-header-ref code (clone-arg)) value)
625 (define-fop (fop-fun-entry 142)
626 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
627 (error "FOP-FUN-ENTRY can't be defined without %PRIMITIVE.")
629 (let ((type (pop-stack))
630 (arglist (pop-stack))
632 (code-object (pop-stack))
633 (offset (read-word-arg)))
634 (declare (type index offset))
635 (unless (zerop (logand offset sb!vm:lowtag-mask))
636 (bug "unaligned function object, offset = #X~X" offset))
637 (let ((fun (%primitive sb!c:compute-fun code-object offset)))
638 (setf (%simple-fun-self fun) fun)
639 (setf (%simple-fun-next fun) (%code-entry-points code-object))
640 (setf (%code-entry-points code-object) fun)
641 (setf (%simple-fun-name fun) name)
642 (setf (%simple-fun-arglist fun) arglist)
643 (setf (%simple-fun-type fun) type)
644 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
645 #+nil (when *load-print*
647 (format t "~S defined~%" fun))
650 ;;;; Some Dylan FOPs used to live here. By 1 November 1998 the code
651 ;;;; was sufficiently stale that the functions it called were no
652 ;;;; longer defined, so I (William Harold Newman) deleted it.
654 ;;;; In case someone in the future is trying to make sense of FOP layout,
655 ;;;; it might be worth recording that the Dylan FOPs were
656 ;;;; 100 FOP-DYLAN-SYMBOL-SAVE
657 ;;;; 101 FOP-SMALL-DYLAN-SYMBOL-SAVE
658 ;;;; 102 FOP-DYLAN-KEYWORD-SAVE
659 ;;;; 103 FOP-SMALL-DYLAN-KEYWORD-SAVE
660 ;;;; 104 FOP-DYLAN-VARINFO-VALUE
662 ;;;; assemblerish fops
664 (define-fop (fop-assembler-code 144)
665 (error "cannot load assembler code except at cold load"))
667 (define-fop (fop-assembler-routine 145)
668 (error "cannot load assembler code except at cold load"))
670 (define-fop (fop-foreign-fixup 147)
671 (let* ((kind (pop-stack))
672 (code-object (pop-stack))
673 (len (read-byte-arg))
674 (sym (make-string len :element-type 'base-char)))
675 (read-n-bytes *fasl-input-stream* sym 0 len)
676 (sb!vm:fixup-code-object code-object
678 (foreign-symbol-address-as-integer sym)
682 (define-fop (fop-assembler-fixup 148)
683 (let ((routine (pop-stack))
685 (code-object (pop-stack)))
686 (multiple-value-bind (value found) (gethash routine *assembler-routines*)
688 (error "undefined assembler routine: ~S" routine))
689 (sb!vm:fixup-code-object code-object (read-word-arg) value kind))
692 (define-fop (fop-code-object-fixup 149)
693 (let ((kind (pop-stack))
694 (code-object (pop-stack)))
695 ;; Note: We don't have to worry about GC moving the code-object after
696 ;; the GET-LISP-OBJ-ADDRESS and before that value is deposited, because
697 ;; we can only use code-object fixups when code-objects don't move.
698 (sb!vm:fixup-code-object code-object (read-word-arg)
699 (get-lisp-obj-address code-object) kind)
703 (define-fop (fop-foreign-dataref-fixup 150)
704 (let* ((kind (pop-stack))
705 (code-object (pop-stack))
706 (len (read-byte-arg))
707 (sym (make-string len :element-type 'base-char)))
708 (read-n-bytes *fasl-input-stream* sym 0 len)
709 (sb!vm:fixup-code-object code-object
711 (foreign-symbol-address-as-integer sym t)