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-unsigned-32 num-consts file)
53 ;;; (dump-unsigned-32 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-arg 4)))
66 (define-fop (,name ,code :pushp ,pushp :stackp ,stackp) ,@forms))
67 (macrolet ((clone-arg () '(read-arg 1)))
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)) read-string-as-bytes))
75 (defun read-string-as-bytes (stream string &optional (length (length string)))
78 (code-char (read-byte stream))))
79 ;; FIXME: The classic CMU CL code to do this was
80 ;; (READ-N-BYTES FILE STRING START END).
81 ;; It was changed for SBCL because we needed a portable version for
82 ;; bootstrapping. Benchmark the non-portable version and see whether it's
83 ;; significantly better than the portable version here. If it is, then use
84 ;; add as an alternate definition, protected with #-SB-XC-HOST.
87 ;;;; miscellaneous fops
89 ;;; FIXME: POP-STACK should be called something more mnemonic. (POP-FOP-STACK?
90 ;;; But that would conflict with PUSH-FOP-TABLE. Something, anyway..)
92 ;;; Setting this variable causes execution of a FOP-NOP4 to produce
93 ;;; output to *DEBUG-IO*. This can be handy when trying to follow the
94 ;;; progress of FASL loading.
96 (defvar *show-fop-nop4-p* nil)
98 ;;; CMU CL had a single no-op fop, FOP-NOP, with fop code 0. Since 0
99 ;;; occurs disproportionately often in fasl files for other reasons,
100 ;;; FOP-NOP is less than ideal for writing human-readable patterns
101 ;;; into fasl files for debugging purposes. There's no shortage of
102 ;;; unused fop codes, so we add this second NOP, which reads 4
103 ;;; arbitrary bytes and discards them.
104 (define-fop (fop-nop4 137 :stackp nil)
105 (let ((arg (read-arg 4)))
106 (declare (ignorable arg))
108 (when *show-fop-nop4-p*
109 (format *debug-io* "~&/FOP-NOP4 ARG=~W=#X~X~%" arg arg))))
111 (define-fop (fop-nop 0 :stackp nil))
112 (define-fop (fop-pop 1 :pushp nil) (push-fop-table (pop-stack)))
113 (define-fop (fop-push 2) (svref *current-fop-table* (read-arg 4)))
114 (define-fop (fop-byte-push 3) (svref *current-fop-table* (read-arg 1)))
116 (define-fop (fop-empty-list 4) ())
117 (define-fop (fop-truth 5) t)
118 ;;; CMU CL had FOP-POP-FOR-EFFECT as fop 65, but it was never used and seemed
119 ;;; to have no possible use.
120 (define-fop (fop-misc-trap 66)
121 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
122 (error "FOP-MISC-TRAP can't be defined without %PRIMITIVE.")
124 (%primitive sb!c:make-other-immediate-type 0 sb!vm:unbound-marker-widetag))
126 ;;; CMU CL had FOP-CHARACTER as fop 68, but it's not needed in current
127 ;;; SBCL as we have no extended characters, only 1-byte characters.
128 ;;; (Ditto for CMU CL, actually: FOP-CHARACTER was speculative generality.)
129 (define-fop (fop-short-character 69)
130 (code-char (read-arg 1)))
132 (define-cloned-fops (fop-struct 48) (fop-small-struct 49)
133 (let* ((size (clone-arg))
134 (res (%make-instance size)))
135 (declare (type index size))
136 (do ((n (1- size) (1- n)))
138 (declare (type index-or-minus-1 n))
139 (setf (%instance-ref res n) (pop-stack)))
142 (define-fop (fop-layout 45)
143 (let ((length (pop-stack))
144 (depthoid (pop-stack))
145 (inherits (pop-stack))
147 (find-and-init-or-check-layout name length inherits depthoid)))
149 (define-fop (fop-end-group 64 :stackp nil)
150 (/show0 "THROWing FASL-GROUP-END")
151 (throw 'fasl-group-end t))
153 ;;; In the normal loader, we just ignore these. GENESIS overwrites
154 ;;; FOP-MAYBE-COLD-LOAD with something that knows whether to revert to
155 ;;; cold-loading or not.
156 (define-fop (fop-normal-load 81 :stackp nil))
157 (define-fop (fop-maybe-cold-load 82 :stackp nil))
159 (define-fop (fop-verify-table-size 62 :stackp nil)
160 (let ((expected-index (read-arg 4)))
161 (unless (= *current-fop-table-index* expected-index)
162 (bug "fasl table of improper size"))))
163 (define-fop (fop-verify-empty-stack 63 :stackp nil)
164 (unless (zerop (length *fop-stack*))
165 (bug "fasl stack not empty when it should be")))
167 ;;;; fops for loading symbols
169 (defvar *load-symbol-buffer* (make-string 100))
170 (declaim (simple-string *load-symbol-buffer*))
171 (defvar *load-symbol-buffer-size* 100)
172 (declaim (type index *load-symbol-buffer-size*))
174 ;;; (1) *LOAD-SYMBOL-BUFFER-SIZE* is redundant, should just be
175 ;;; (LENGTH *LOAD-SYMBOL-BUFFER*).
176 ;;; (2) *LOAD-SYMBOL-BUFFER* should not have a global value, but should
177 ;;; be bound on entry to FASL loading, and it should be renamed to
178 ;;; *FASL-SYMBOL-BUFFER*.
180 (macrolet (;; FIXME: Should all this code really be duplicated inside
181 ;; each fop? Perhaps it would be better for this shared
182 ;; code to live in FLET FROB1 and FLET FROB4 (for the
183 ;; two different sizes of counts).
184 (frob (name code name-size package)
185 (let ((n-package (gensym))
188 `(define-fop (,name ,code)
189 (prepare-for-fast-read-byte *fasl-input-stream*
190 (let ((,n-package ,package)
191 (,n-size (fast-read-u-integer ,name-size)))
192 (when (> ,n-size *load-symbol-buffer-size*)
193 (setq *load-symbol-buffer*
194 (make-string (setq *load-symbol-buffer-size*
196 (done-with-fast-read-byte)
197 (let ((,n-buffer *load-symbol-buffer*))
198 (read-string-as-bytes *fasl-input-stream*
201 (push-fop-table (intern* ,n-buffer
205 ;; Note: CMU CL had FOP-SYMBOL-SAVE and FOP-SMALL-SYMBOL-SAVE, but
206 ;; since they made the behavior of the fasloader depend on the
207 ;; *PACKAGE* variable, not only were they a pain to support (because
208 ;; they required various hacks to handle *PACKAGE*-manipulation
209 ;; forms) they were basically broken by design, because ANSI gives
210 ;; the user so much flexibility in manipulating *PACKAGE* at
211 ;; load-time that no reasonable hacks could possibly make things
212 ;; work right. The ones used in CMU CL certainly didn't, as shown by
214 ;; (IN-PACKAGE :CL-USER)
215 ;; (DEFVAR CL::*FOO* 'FOO-VALUE)
216 ;; (EVAL-WHEN (:COMPILE-TOPLEVEL :LOAD-TOPLEVEL :EXECUTE)
217 ;; (SETF *PACKAGE* (FIND-PACKAGE :CL)))
218 ;; which in CMU CL 2.4.9 defines a variable CL-USER::*FOO* instead of
219 ;; defining CL::*FOO*. Therefore, we don't use those fops in SBCL.
220 ;;(frob fop-symbol-save 6 4 *package*)
221 ;;(frob fop-small-symbol-save 7 1 *package*)
223 (frob fop-lisp-symbol-save 75 4 *cl-package*)
224 (frob fop-lisp-small-symbol-save 76 1 *cl-package*)
225 (frob fop-keyword-symbol-save 77 4 *keyword-package*)
226 (frob fop-keyword-small-symbol-save 78 1 *keyword-package*)
228 ;; FIXME: Because we don't have FOP-SYMBOL-SAVE any more, an enormous number
229 ;; of symbols will fall through to this case, probably resulting in bloated
231 ;; FOP-SYMBOL-IN-LAST-PACKAGE-SAVE/FOP-SMALL-SYMBOL-IN-LAST-PACKAGE-SAVE
232 ;; cloned fop pair could undo some of this bloat.
233 (frob fop-symbol-in-package-save 8 4
234 (svref *current-fop-table* (fast-read-u-integer 4)))
235 (frob fop-small-symbol-in-package-save 9 1
236 (svref *current-fop-table* (fast-read-u-integer 4)))
237 (frob fop-symbol-in-byte-package-save 10 4
238 (svref *current-fop-table* (fast-read-u-integer 1)))
239 (frob fop-small-symbol-in-byte-package-save 11 1
240 (svref *current-fop-table* (fast-read-u-integer 1))))
242 (define-cloned-fops (fop-uninterned-symbol-save 12)
243 (fop-uninterned-small-symbol-save 13)
244 (let* ((arg (clone-arg))
245 (res (make-string arg)))
246 (read-string-as-bytes *fasl-input-stream* res)
247 (push-fop-table (make-symbol res))))
249 (define-fop (fop-package 14)
250 (find-undeleted-package-or-lose (pop-stack)))
252 ;;;; fops for loading numbers
254 ;;; Load a signed integer LENGTH bytes long from *FASL-INPUT-STREAM*.
255 (defun load-s-integer (length)
256 (declare (fixnum length))
257 ;; #+cmu (declare (optimize (inhibit-warnings 2)))
258 (do* ((index length (1- index))
259 (byte 0 (read-byte *fasl-input-stream*))
260 (result 0 (+ result (ash byte bits)))
263 (if (logbitp 7 byte) ; look at sign bit
264 (- result (ash 1 bits))
266 (declare (fixnum index byte bits))))
268 (define-cloned-fops (fop-integer 33) (fop-small-integer 34)
269 (load-s-integer (clone-arg)))
271 (define-fop (fop-word-integer 35)
272 (prepare-for-fast-read-byte *fasl-input-stream*
274 (fast-read-s-integer 4)
275 (done-with-fast-read-byte))))
277 (define-fop (fop-byte-integer 36)
278 (prepare-for-fast-read-byte *fasl-input-stream*
280 (fast-read-s-integer 1)
281 (done-with-fast-read-byte))))
283 (define-fop (fop-ratio 70)
284 (let ((den (pop-stack)))
285 (%make-ratio (pop-stack) den)))
287 (define-fop (fop-complex 71)
288 (let ((im (pop-stack)))
289 (%make-complex (pop-stack) im)))
291 (macrolet ((fast-read-single-float ()
292 '(make-single-float (fast-read-s-integer 4)))
293 (fast-read-double-float ()
294 '(let ((lo (fast-read-u-integer 4)))
295 (make-double-float (fast-read-s-integer 4) lo))))
296 (macrolet ((define-complex-fop (name fop-code type)
297 (let ((reader (symbolicate "FAST-READ-" type)))
298 `(define-fop (,name ,fop-code)
299 (prepare-for-fast-read-byte *fasl-input-stream*
301 (complex (,reader) (,reader))
302 (done-with-fast-read-byte))))))
303 (define-float-fop (name fop-code type)
304 (let ((reader (symbolicate "FAST-READ-" type)))
305 `(define-fop (,name ,fop-code)
306 (prepare-for-fast-read-byte *fasl-input-stream*
309 (done-with-fast-read-byte)))))))
310 (define-complex-fop fop-complex-single-float 72 single-float)
311 (define-complex-fop fop-complex-double-float 73 double-float)
313 (define-complex-fop fop-complex-long-float 67 long-float)
314 (define-float-fop fop-single-float 46 single-float)
315 (define-float-fop fop-double-float 47 double-float)
317 (define-float-fop fop-long-float 52 long-float)))
322 (define-fop (fop-list 15)
323 (do ((res () (cons (pop-stack) res))
324 (n (read-arg 1) (1- n)))
326 (declare (type index n))))
328 (define-fop (fop-list* 16)
329 (do ((res (pop-stack) (cons (pop-stack) res))
330 (n (read-arg 1) (1- n)))
332 (declare (type index n))))
334 (macrolet ((frob (name op fun n)
335 `(define-fop (,name ,op)
336 (call-with-popped-args ,fun ,n))))
338 (frob fop-list-1 17 list 1)
339 (frob fop-list-2 18 list 2)
340 (frob fop-list-3 19 list 3)
341 (frob fop-list-4 20 list 4)
342 (frob fop-list-5 21 list 5)
343 (frob fop-list-6 22 list 6)
344 (frob fop-list-7 23 list 7)
345 (frob fop-list-8 24 list 8)
347 (frob fop-list*-1 25 list* 2)
348 (frob fop-list*-2 26 list* 3)
349 (frob fop-list*-3 27 list* 4)
350 (frob fop-list*-4 28 list* 5)
351 (frob fop-list*-5 29 list* 6)
352 (frob fop-list*-6 30 list* 7)
353 (frob fop-list*-7 31 list* 8)
354 (frob fop-list*-8 32 list* 9))
356 ;;;; fops for loading arrays
358 (define-cloned-fops (fop-string 37) (fop-small-string 38)
359 (let* ((arg (clone-arg))
360 (res (make-string arg)))
361 (read-string-as-bytes *fasl-input-stream* res)
364 (define-cloned-fops (fop-vector 39) (fop-small-vector 40)
365 (let* ((size (clone-arg))
366 (res (make-array size)))
367 (declare (fixnum size))
368 (do ((n (1- size) (1- n)))
370 (setf (svref res n) (pop-stack)))
373 (define-fop (fop-array 83)
374 (let* ((rank (read-arg 4))
376 (length (length vec))
377 (res (make-array-header sb!vm:simple-array-widetag rank)))
378 (declare (simple-array vec)
379 (type (unsigned-byte 24) rank))
380 (set-array-header res vec length nil 0
382 (dimensions () (cons (pop-stack) dimensions)))
383 ((zerop i) dimensions)
384 (declare (type index i)))
388 (define-fop (fop-single-float-vector 84)
389 (let* ((length (read-arg 4))
390 (result (make-array length :element-type 'single-float)))
391 (read-n-bytes *fasl-input-stream* result 0 (* length sb!vm:n-word-bytes))
394 (define-fop (fop-double-float-vector 85)
395 (let* ((length (read-arg 4))
396 (result (make-array length :element-type 'double-float)))
397 (read-n-bytes *fasl-input-stream* result 0 (* length sb!vm:n-word-bytes 2))
400 (define-fop (fop-complex-single-float-vector 86)
401 (let* ((length (read-arg 4))
402 (result (make-array length :element-type '(complex single-float))))
403 (read-n-bytes *fasl-input-stream* result 0 (* length sb!vm:n-word-bytes 2))
406 (define-fop (fop-complex-double-float-vector 87)
407 (let* ((length (read-arg 4))
408 (result (make-array length :element-type '(complex double-float))))
409 (read-n-bytes *fasl-input-stream*
412 (* length sb!vm:n-word-bytes 2 2))
416 ;;; *** NOT *** the FOP-INT-VECTOR as currently documented in rtguts.
417 ;;; Size must be a directly supported I-vector element size, with no
418 ;;; extra bits. This must be packed according to the local
419 ;;; byte-ordering, allowing us to directly read the bits.
420 (define-fop (fop-int-vector 43)
421 (prepare-for-fast-read-byte *fasl-input-stream*
422 (let* ((len (fast-read-u-integer 4))
423 (size (fast-read-byte))
425 (0 (make-array len :element-type 'nil))
426 (1 (make-array len :element-type 'bit))
427 (2 (make-array len :element-type '(unsigned-byte 2)))
428 (4 (make-array len :element-type '(unsigned-byte 4)))
429 (7 (prog1 (make-array len :element-type '(unsigned-byte 7))
431 (8 (make-array len :element-type '(unsigned-byte 8)))
432 (15 (prog1 (make-array len :element-type '(unsigned-byte 15))
434 (16 (make-array len :element-type '(unsigned-byte 16)))
435 (31 (prog1 (make-array len :element-type '(unsigned-byte 31))
437 (32 (make-array len :element-type '(unsigned-byte 32)))
438 (t (bug "losing i-vector element size: ~S" size)))))
439 (declare (type index len))
440 (done-with-fast-read-byte)
441 (read-n-bytes *fasl-input-stream*
444 (ceiling (the index (* size len))
448 ;;; This is the same as FOP-INT-VECTOR, except this is for signed
450 (define-fop (fop-signed-int-vector 50)
451 (prepare-for-fast-read-byte *fasl-input-stream*
452 (let* ((len (fast-read-u-integer 4))
453 (size (fast-read-byte))
455 (8 (make-array len :element-type '(signed-byte 8)))
456 (16 (make-array len :element-type '(signed-byte 16)))
457 (29 (make-array len :element-type '(unsigned-byte 29)))
458 (30 (make-array len :element-type '(signed-byte 30)))
459 (32 (make-array len :element-type '(signed-byte 32)))
460 (t (bug "losing si-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 (* (if (or (= size 30) (= size 29))
467 32 ; Adjust for (signed-byte 30)
468 size) len)) sb!vm:n-byte-bits))
471 (define-fop (fop-eval 53)
472 (let ((result (eval (pop-stack))))
473 ;; FIXME: CMU CL had this code here:
474 ;; (when *load-print*
478 ;; Unfortunately, this dependence on the *LOAD-PRINT* global
479 ;; variable is non-ANSI, so for now we've just punted printing in
483 (define-fop (fop-eval-for-effect 54 :pushp nil)
484 (let ((result (eval (pop-stack))))
485 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
486 (declare (ignore result))
487 #+nil (when *load-print*
492 (define-fop (fop-funcall 55)
493 (let ((arg (read-arg 1)))
495 (funcall (pop-stack))
496 (do ((args () (cons (pop-stack) args))
498 ((zerop n) (apply (pop-stack) args))
499 (declare (type index n))))))
501 (define-fop (fop-funcall-for-effect 56 :pushp nil)
502 (let ((arg (read-arg 1)))
504 (funcall (pop-stack))
505 (do ((args () (cons (pop-stack) args))
507 ((zerop n) (apply (pop-stack) args))
508 (declare (type index n))))))
510 ;;;; fops for fixing up circularities
512 (define-fop (fop-rplaca 200 :pushp nil)
513 (let ((obj (svref *current-fop-table* (read-arg 4)))
516 (setf (car (nthcdr idx obj)) val)))
518 (define-fop (fop-rplacd 201 :pushp nil)
519 (let ((obj (svref *current-fop-table* (read-arg 4)))
522 (setf (cdr (nthcdr idx obj)) val)))
524 (define-fop (fop-svset 202 :pushp nil)
525 (let* ((obi (read-arg 4))
526 (obj (svref *current-fop-table* obi))
529 (if (typep obj 'instance)
530 (setf (%instance-ref obj idx) val)
531 (setf (svref obj idx) val))))
533 (define-fop (fop-structset 204 :pushp nil)
534 (setf (%instance-ref (svref *current-fop-table* (read-arg 4))
538 ;;; In the original CMUCL code, this actually explicitly declared PUSHP
539 ;;; to be T, even though that's what it defaults to in DEFINE-FOP.
540 (define-fop (fop-nthcdr 203)
541 (nthcdr (read-arg 4) (pop-stack)))
543 ;;;; fops for loading functions
545 ;;; (In CMU CL there was a FOP-CODE-FORMAT (47) which was
546 ;;; conventionally placed at the beginning of each fasl file to test
547 ;;; for compatibility between the fasl file and the CMU CL which
548 ;;; loaded it. In SBCL, this functionality has been replaced by
549 ;;; putting the implementation and version in required fields in the
550 ;;; fasl file header.)
552 (define-fop (fop-code 58 :stackp nil)
553 (load-code (read-arg 4) (read-arg 4)))
555 (define-fop (fop-small-code 59 :stackp nil)
556 (load-code (read-arg 1) (read-arg 2)))
558 (define-fop (fop-fdefinition 60)
559 (fdefinition-object (pop-stack) t))
561 (define-fop (fop-sanctify-for-execution 61)
562 (let ((component (pop-stack)))
563 (sb!vm:sanctify-for-execution component)
566 (define-fop (fop-fset 74 :pushp nil)
567 ;; Ordinary, not-for-cold-load code shouldn't need to mess with this
568 ;; at all, since it's only used as part of the conspiracy between
569 ;; the cross-compiler and GENESIS to statically link FDEFINITIONs
571 (warn "~@<FOP-FSET seen in ordinary load (not cold load) -- quite strange! ~
572 If you didn't do something strange to cause this, please report it as a ~
574 ;; Unlike CMU CL, we don't treat this as a no-op in ordinary code.
575 ;; If the user (or, more likely, developer) is trying to reload
576 ;; compiled-for-cold-load code into a warm SBCL, we'll do a warm
577 ;; assignment. (This is partly for abstract tidiness, since the warm
578 ;; assignment is the closest analogy to what happens at cold load,
579 ;; and partly because otherwise our compiled-for-cold-load code will
580 ;; fail, since in SBCL things like compiled-for-cold-load %DEFUN
581 ;; depend more strongly than in CMU CL on FOP-FSET actually doing
583 (let ((fn (pop-stack))
585 (setf (fdefinition name) fn)))
587 ;;; Modify a slot in a CONSTANTS object.
588 (define-cloned-fops (fop-alter-code 140 :pushp nil) (fop-byte-alter-code 141)
589 (let ((value (pop-stack))
591 (setf (code-header-ref code (clone-arg)) value)
594 (define-fop (fop-fun-entry 142)
595 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
596 (error "FOP-FUN-ENTRY can't be defined without %PRIMITIVE.")
598 (let ((type (pop-stack))
599 (arglist (pop-stack))
601 (code-object (pop-stack))
602 (offset (read-arg 4)))
603 (declare (type index offset))
604 (unless (zerop (logand offset sb!vm:lowtag-mask))
605 (bug "unaligned function object, offset = #X~X" offset))
606 (let ((fun (%primitive sb!c:compute-fun code-object offset)))
607 (setf (%simple-fun-self fun) fun)
608 (setf (%simple-fun-next fun) (%code-entry-points code-object))
609 (setf (%code-entry-points code-object) fun)
610 (setf (%simple-fun-name fun) name)
611 (setf (%simple-fun-arglist fun) arglist)
612 (setf (%simple-fun-type fun) type)
613 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
614 #+nil (when *load-print*
616 (format t "~S defined~%" fun))
619 ;;;; Some Dylan FOPs used to live here. By 1 November 1998 the code
620 ;;;; was sufficiently stale that the functions it called were no
621 ;;;; longer defined, so I (William Harold Newman) deleted it.
623 ;;;; In case someone in the future is trying to make sense of FOP layout,
624 ;;;; it might be worth recording that the Dylan FOPs were
625 ;;;; 100 FOP-DYLAN-SYMBOL-SAVE
626 ;;;; 101 FOP-SMALL-DYLAN-SYMBOL-SAVE
627 ;;;; 102 FOP-DYLAN-KEYWORD-SAVE
628 ;;;; 103 FOP-SMALL-DYLAN-KEYWORD-SAVE
629 ;;;; 104 FOP-DYLAN-VARINFO-VALUE
631 ;;;; assemblerish fops
633 (define-fop (fop-foreign-fixup 147)
634 (let* ((kind (pop-stack))
635 (code-object (pop-stack))
637 (sym (make-string len)))
638 (read-n-bytes *fasl-input-stream* sym 0 len)
639 (sb!vm:fixup-code-object code-object
641 (foreign-symbol-address-as-integer sym)
645 (define-fop (fop-assembler-code 144)
646 (error "cannot load assembler code except at cold load"))
648 (define-fop (fop-assembler-routine 145)
649 (error "cannot load assembler code except at cold load"))
651 (define-fop (fop-assembler-fixup 148)
652 (let ((routine (pop-stack))
654 (code-object (pop-stack)))
655 (multiple-value-bind (value found) (gethash routine *assembler-routines*)
657 (error "undefined assembler routine: ~S" routine))
658 (sb!vm:fixup-code-object code-object (read-arg 4) value kind))
661 (define-fop (fop-code-object-fixup 149)
662 (let ((kind (pop-stack))
663 (code-object (pop-stack)))
664 ;; Note: We don't have to worry about GC moving the code-object after
665 ;; the GET-LISP-OBJ-ADDRESS and before that value is deposited, because
666 ;; we can only use code-object fixups when code-objects don't move.
667 (sb!vm:fixup-code-object code-object (read-arg 4)
668 (get-lisp-obj-address code-object) kind)