8 ;;; Define NAME as a fasl operation, with op-code FOP-CODE. PUSHP
9 ;;; describes what the body does to the fop stack:
11 ;;; The body neither pushes or pops the fop stack.
13 ;;; The body might pop the fop stack. The result of the body is
14 ;;; pushed on the fop stack.
16 ;;; The body might pop the fop stack. The result of the body is
19 ;;; FIXME: Make PUSHP into a &KEY argument accepting a booleana value.
20 ;;; Handle the :PUSHP :NOPE case with a separate :STACKP NIL argument,
21 ;;; meaning "the body doesn't interact with the FOP stack."
22 (defmacro define-fop ((name fop-code &optional (pushp t)) &rest forms)
27 `(with-fop-stack ,pushp ,@forms)))
28 (%define-fop ',name ,fop-code)))
30 ;;; FIXME: This can be byte coded.
31 (defun %define-fop (name code)
32 (let ((oname (svref *fop-names* code)))
33 (when (and oname (not (eq oname name)))
34 (error "multiple names for fop code ~D: ~S and ~S" code name oname)))
35 ;; KLUDGE: It's mnemonically suboptimal to use 'FOP-CODE as the name of the
36 ;; tag which associates names with codes when it's also used as one of
37 ;; the names. Perhaps the fops named FOP-CODE and FOP-SMALL-CODE could
38 ;; be renamed to something more mnemonic? -- WHN 19990902
39 (let ((ocode (get name 'fop-code)))
40 (when (and ocode (/= ocode code))
41 (error "multiple codes for fop name ~S: ~D and ~D" name code ocode)))
42 (setf (svref *fop-names* code) name
43 (get name 'fop-code) code
44 (svref *fop-functions* code) (symbol-function name))
47 ;;; Define a pair of fops which are identical except that one reads
48 ;;; a four-byte argument while the other reads a one-byte argument. The
49 ;;; argument can be accessed by using the Clone-Arg macro.
51 ;;; KLUDGE: It would be nice if the definition here encapsulated which
52 ;;; value ranges went with which fop variant, and chose the correct
53 ;;; fop code to use. Currently, since such logic isn't encapsulated,
54 ;;; we see callers doing stuff like
55 ;;; (cond ((and (< num-consts #x100) (< total-length #x10000))
56 ;;; (dump-fop 'sb!impl::fop-small-code file)
57 ;;; (dump-byte num-consts file)
58 ;;; (dump-integer-as-n-bytes total-length 2 file))
60 ;;; (dump-fop 'sb!impl::fop-code file)
61 ;;; (dump-unsigned-32 num-consts file)
62 ;;; (dump-unsigned-32 total-length file))))
63 ;;; in several places. It would be cleaner if this could be replaced with
65 ;;; (dump-fop file fop-code num-consts total-length)
66 ;;; Some of this logic is already in DUMP-FOP*, but that still requires the
67 ;;; caller to know that it's a 1-byte-arg/4-byte-arg cloned fop pair, and to
68 ;;; know both the 1-byte-arg and the 4-byte-arg fop names. -- WHN 19990902
69 (defmacro define-cloned-fops ((name code &optional (pushp t))
70 (small-name small-code) &rest forms)
71 (check-type pushp (member nil t :nope))
73 (macrolet ((clone-arg () '(read-arg 4)))
74 (define-fop (,name ,code ,pushp) ,@forms))
75 (macrolet ((clone-arg () '(read-arg 1)))
76 (define-fop (,small-name ,small-code ,pushp) ,@forms))))
78 ;;; a helper function for reading string values from FASL files: sort of like
79 ;;; READ-SEQUENCE specialized for files of (UNSIGNED-BYTE 8), with an automatic
80 ;;; conversion from (UNSIGNED-BYTE 8) into CHARACTER for each element read
81 (declaim (ftype (function (stream simple-string &optional index) (values)) read-string-as-bytes))
82 (defun read-string-as-bytes (stream string &optional (length (length string)))
85 (code-char (read-byte stream))))
86 ;; FIXME: The classic CMU CL code to do this was
87 ;; (READ-N-BYTES FILE STRING START END).
88 ;; It was changed for SBCL because we needed a portable version for
89 ;; bootstrapping. Benchmark the non-portable version and see whether it's
90 ;; significantly better than the portable version here. If it is, then use
91 ;; add as an alternate definition, protected with #-SB-XC-HOST.
94 ;;;; miscellaneous fops
96 ;;; FIXME: POP-STACK should be called something more mnemonic. (POP-FOP-STACK?
97 ;;; But that would conflict with PUSH-FOP-TABLE. Something, anyway..)
99 ;;; Setting this variable causes execution of a FOP-NOP4 to produce
100 ;;; output to *DEBUG-IO*. This can be handy when trying to follow the
101 ;;; progress of FASLOAD.
103 (defvar *show-fop-nop4-p* nil)
105 ;;; CMU CL had a single no-op fop, FOP-NOP, with fop code 0. Since 0 occurs
106 ;;; disproportionately often in fasl files for other reasons, FOP-NOP is less
107 ;;; than ideal for writing human-readable patterns into fasl files for
108 ;;; debugging purposes. There's no shortage of unused fop codes, so we add this
109 ;;; second NOP, which reads 4 arbitrary bytes and discards them.
110 (define-fop (fop-nop4 137 :nope)
111 (let ((arg (read-arg 4)))
112 (declare (ignorable arg))
114 (when *show-fop-nop4-p*
115 (format *debug-io* "~&/FOP-NOP4 ARG=~D=#X~X~%" arg arg))))
117 (define-fop (fop-nop 0 :nope))
118 (define-fop (fop-pop 1 nil) (push-fop-table (pop-stack)))
119 (define-fop (fop-push 2) (svref *current-fop-table* (read-arg 4)))
120 (define-fop (fop-byte-push 3) (svref *current-fop-table* (read-arg 1)))
122 (define-fop (fop-empty-list 4) ())
123 (define-fop (fop-truth 5) t)
124 ;;; CMU CL had FOP-POP-FOR-EFFECT as fop 65, but it was never used and seemed
125 ;;; to have no possible use.
126 (define-fop (fop-misc-trap 66)
127 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
128 (error "FOP-MISC-TRAP can't be defined without %PRIMITIVE.")
130 (%primitive sb!c:make-other-immediate-type 0 sb!vm:unbound-marker-type))
132 (define-fop (fop-character 68)
133 (code-char (read-arg 3)))
134 ;;; CMU CL had FOP-CHARACTER as fop 68, but it's not needed in current
135 ;;; SBCL as we have no extended characters, only 1-byte characters.
136 ;;; (Ditto for CMU CL, actually: FOP-CHARACTER was speculative generality.)
137 (define-fop (fop-short-character 69)
138 (code-char (read-arg 1)))
140 (define-cloned-fops (fop-struct 48) (fop-small-struct 49)
141 (let* ((size (clone-arg))
142 (res (%make-instance size)))
143 (declare (type index size))
144 (do ((n (1- size) (1- n)))
146 (declare (type (integer -1 #.most-positive-fixnum) n))
147 (setf (%instance-ref res n) (pop-stack)))
150 (define-fop (fop-layout 45)
151 (let ((length (pop-stack))
152 (depthoid (pop-stack))
153 (inherits (pop-stack))
155 (find-and-init-or-check-layout name length inherits depthoid)))
157 (define-fop (fop-end-group 64 :nope)
158 (throw 'fasl-group-end t))
160 ;;; In the normal loader, we just ignore these. GENESIS overwrites
161 ;;; FOP-MAYBE-COLD-LOAD with something that knows whether to revert to
162 ;;; cold-loading or not.
163 (define-fop (fop-normal-load 81 :nope))
164 (define-fop (fop-maybe-cold-load 82 :nope))
166 (define-fop (fop-verify-table-size 62 :nope)
167 (let ((expected-index (read-arg 4)))
168 (unless (= *current-fop-table-index* expected-index)
169 (error "internal error: fasl table of improper size"))))
170 (define-fop (fop-verify-empty-stack 63 :nope)
171 (unless (= *fop-stack-pointer* *fop-stack-pointer-on-entry*)
172 (error "internal error: fasl stack not empty when it should be")))
174 ;;;; fops for loading symbols
176 (defvar *load-symbol-buffer* (make-string 100))
177 (declaim (simple-string *load-symbol-buffer*))
178 (defvar *load-symbol-buffer-size* 100)
179 (declaim (type index *load-symbol-buffer-size*))
181 ;;; (1) *LOAD-SYMBOL-BUFFER-SIZE* is redundant, should just be
182 ;;; (LENGTH *LOAD-SYMBOL-BUFFER*).
183 ;;; (2) *LOAD-SYMBOL-BUFFER* should not have a global value, but should
184 ;;; be bound on entry to FASLOAD, and it should be renamed to
185 ;;; *FASLOAD-SYMBOL-BUFFER*.
187 (macrolet (;; FIXME: Should all this code really be duplicated inside
188 ;; each fop? Perhaps it would be better for this shared
189 ;; code to live in FLET FROB1 and FLET FROB4 (for the
190 ;; two different sizes of counts).
191 (frob (name code name-size package)
192 (let ((n-package (gensym))
195 `(define-fop (,name ,code)
196 (prepare-for-fast-read-byte *fasl-file*
197 (let ((,n-package ,package)
198 (,n-size (fast-read-u-integer ,name-size)))
199 (when (> ,n-size *load-symbol-buffer-size*)
200 (setq *load-symbol-buffer*
201 (make-string (setq *load-symbol-buffer-size*
203 (done-with-fast-read-byte)
204 (let ((,n-buffer *load-symbol-buffer*))
205 (read-string-as-bytes *fasl-file*
208 (push-fop-table (intern* ,n-buffer
212 ;; Note: CMU CL had FOP-SYMBOL-SAVE and FOP-SMALL-SYMBOL-SAVE, but since they
213 ;; made the behavior of the fasloader depend on the *PACKAGE* variable, not
214 ;; only were they a pain to support (because they required various hacks to
215 ;; handle *PACKAGE*-manipulation forms) they were basically broken by design,
216 ;; because ANSI gives the user so much flexibility in manipulating *PACKAGE*
217 ;; at load-time that no reasonable hacks could possibly make things work
218 ;; right. The ones used in CMU CL certainly didn't, as shown by e.g.
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 4 *cl-package*)
229 (frob fop-lisp-small-symbol-save 76 1 *cl-package*)
230 (frob fop-keyword-symbol-save 77 4 *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 4
239 (svref *current-fop-table* (fast-read-u-integer 4)))
240 (frob fop-small-symbol-in-package-save 9 1
241 (svref *current-fop-table* (fast-read-u-integer 4)))
242 (frob fop-symbol-in-byte-package-save 10 4
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)))
251 (read-string-as-bytes *fasl-file* res)
252 (push-fop-table (make-symbol res))))
254 (define-fop (fop-package 14)
255 (find-undeleted-package-or-lose (pop-stack)))
257 ;;;; fops for loading numbers
259 ;;; Load a signed integer LENGTH bytes long from *FASL-FILE*.
260 (defun load-s-integer (length)
261 (declare (fixnum length))
262 ;; #+cmu (declare (optimize (inhibit-warnings 2)))
263 (do* ((index length (1- index))
264 (byte 0 (read-byte *fasl-file*))
265 (result 0 (+ result (ash byte bits)))
268 (if (logbitp 7 byte) ; look at sign bit
269 (- result (ash 1 bits))
271 (declare (fixnum index byte bits))))
273 (define-cloned-fops (fop-integer 33) (fop-small-integer 34)
274 (load-s-integer (clone-arg)))
276 (define-fop (fop-word-integer 35)
277 (prepare-for-fast-read-byte *fasl-file*
279 (fast-read-s-integer 4)
280 (done-with-fast-read-byte))))
282 (define-fop (fop-byte-integer 36)
283 (prepare-for-fast-read-byte *fasl-file*
285 (fast-read-s-integer 1)
286 (done-with-fast-read-byte))))
288 (define-fop (fop-ratio 70)
289 (let ((den (pop-stack)))
290 (%make-ratio (pop-stack) den)))
292 (define-fop (fop-complex 71)
293 (let ((im (pop-stack)))
294 (%make-complex (pop-stack) im)))
296 (define-fop (fop-complex-single-float 72)
297 (prepare-for-fast-read-byte *fasl-file*
299 (complex (make-single-float (fast-read-s-integer 4))
300 (make-single-float (fast-read-s-integer 4)))
301 (done-with-fast-read-byte))))
303 (define-fop (fop-complex-double-float 73)
304 (prepare-for-fast-read-byte *fasl-file*
306 (let* ((re-lo (fast-read-u-integer 4))
307 (re-hi (fast-read-u-integer 4))
308 (re (make-double-float re-hi re-lo))
309 (im-lo (fast-read-u-integer 4))
310 (im-hi (fast-read-u-integer 4))
311 (im (make-double-float im-hi im-lo)))
313 (done-with-fast-read-byte))))
316 (define-fop (fop-complex-long-float 67)
317 (prepare-for-fast-read-byte *fasl-file*
319 (let* ((re-lo (fast-read-u-integer 4))
320 #!+sparc (re-mid (fast-read-u-integer 4))
321 (re-hi (fast-read-u-integer 4))
322 (re-exp (fast-read-s-integer #!+x86 2 #!+sparc 4))
323 (re (make-long-float re-exp re-hi #!+sparc re-mid re-lo))
324 (im-lo (fast-read-u-integer 4))
325 #!+sparc (im-mid (fast-read-u-integer 4))
326 (im-hi (fast-read-u-integer 4))
327 (im-exp (fast-read-s-integer #!+x86 2 #!+sparc 4))
328 (im (make-long-float im-exp im-hi #!+sparc im-mid im-lo)))
330 (done-with-fast-read-byte))))
332 (define-fop (fop-single-float 46)
333 (prepare-for-fast-read-byte *fasl-file*
334 (prog1 (make-single-float (fast-read-s-integer 4))
335 (done-with-fast-read-byte))))
337 (define-fop (fop-double-float 47)
338 (prepare-for-fast-read-byte *fasl-file*
340 (let ((lo (fast-read-u-integer 4)))
341 (make-double-float (fast-read-s-integer 4) lo))
342 (done-with-fast-read-byte))))
345 (define-fop (fop-long-float 52)
346 (prepare-for-fast-read-byte *fasl-file*
348 (let ((lo (fast-read-u-integer 4))
349 #!+sparc (mid (fast-read-u-integer 4))
350 (hi (fast-read-u-integer 4))
351 (exp (fast-read-s-integer #!+x86 2 #!+sparc 4)))
352 (make-long-float exp hi #!+sparc mid lo))
353 (done-with-fast-read-byte))))
357 (define-fop (fop-list 15)
358 (do ((res () (cons (pop-stack) res))
359 (n (read-arg 1) (1- n)))
361 (declare (type index n))))
363 (define-fop (fop-list* 16)
364 (do ((res (pop-stack) (cons (pop-stack) res))
365 (n (read-arg 1) (1- n)))
367 (declare (type index n))))
369 (macrolet ((frob (name op fun n)
370 `(define-fop (,name ,op)
371 (call-with-popped-things ,fun ,n))))
373 (frob fop-list-1 17 list 1)
374 (frob fop-list-2 18 list 2)
375 (frob fop-list-3 19 list 3)
376 (frob fop-list-4 20 list 4)
377 (frob fop-list-5 21 list 5)
378 (frob fop-list-6 22 list 6)
379 (frob fop-list-7 23 list 7)
380 (frob fop-list-8 24 list 8)
382 (frob fop-list*-1 25 list* 2)
383 (frob fop-list*-2 26 list* 3)
384 (frob fop-list*-3 27 list* 4)
385 (frob fop-list*-4 28 list* 5)
386 (frob fop-list*-5 29 list* 6)
387 (frob fop-list*-6 30 list* 7)
388 (frob fop-list*-7 31 list* 8)
389 (frob fop-list*-8 32 list* 9))
391 ;;;; fops for loading arrays
393 (define-cloned-fops (fop-string 37) (fop-small-string 38)
394 (let* ((arg (clone-arg))
395 (res (make-string arg)))
396 (read-string-as-bytes *fasl-file* res)
399 (define-cloned-fops (fop-vector 39) (fop-small-vector 40)
400 (let* ((size (clone-arg))
401 (res (make-array size)))
402 (declare (fixnum size))
403 (do ((n (1- size) (1- n)))
405 (setf (svref res n) (pop-stack)))
408 (define-fop (fop-array 83)
409 (let* ((rank (read-arg 4))
411 (length (length vec))
412 (res (make-array-header sb!vm:simple-array-type rank)))
413 (declare (simple-array vec)
414 (type (unsigned-byte 24) rank))
415 (set-array-header res vec length length 0
417 (dimensions () (cons (pop-stack) dimensions)))
418 ((zerop i) dimensions)
419 (declare (type index i)))
423 (define-fop (fop-single-float-vector 84)
424 (let* ((length (read-arg 4))
425 (result (make-array length :element-type 'single-float)))
426 (read-n-bytes *fasl-file* result 0 (* length sb!vm:word-bytes))
429 (define-fop (fop-double-float-vector 85)
430 (let* ((length (read-arg 4))
431 (result (make-array length :element-type 'double-float)))
432 (read-n-bytes *fasl-file* result 0 (* length sb!vm:word-bytes 2))
436 (define-fop (fop-long-float-vector 88)
437 (let* ((length (read-arg 4))
438 (result (make-array length :element-type 'long-float)))
439 (read-n-bytes *fasl-file*
442 (* length sb!vm:word-bytes #!+x86 3 #!+sparc 4))
445 (define-fop (fop-complex-single-float-vector 86)
446 (let* ((length (read-arg 4))
447 (result (make-array length :element-type '(complex single-float))))
448 (read-n-bytes *fasl-file* result 0 (* length sb!vm:word-bytes 2))
451 (define-fop (fop-complex-double-float-vector 87)
452 (let* ((length (read-arg 4))
453 (result (make-array length :element-type '(complex double-float))))
454 (read-n-bytes *fasl-file* result 0 (* length sb!vm:word-bytes 2 2))
458 (define-fop (fop-complex-long-float-vector 89)
459 (let* ((length (read-arg 4))
460 (result (make-array length :element-type '(complex long-float))))
461 (read-n-bytes *fasl-file* result 0
462 (* length sb!vm:word-bytes #!+x86 3 #!+sparc 4 2))
465 ;;; *** NOT *** the FOP-INT-VECTOR as currently documented in rtguts. Size
466 ;;; must be a directly supported I-vector element size, with no extra bits.
467 ;;; This must be packed according to the local byte-ordering, allowing us to
468 ;;; directly read the bits.
469 (define-fop (fop-int-vector 43)
470 (prepare-for-fast-read-byte *fasl-file*
471 (let* ((len (fast-read-u-integer 4))
472 (size (fast-read-byte))
474 (1 (make-array len :element-type 'bit))
475 (2 (make-array len :element-type '(unsigned-byte 2)))
476 (4 (make-array len :element-type '(unsigned-byte 4)))
477 (8 (make-array len :element-type '(unsigned-byte 8)))
478 (16 (make-array len :element-type '(unsigned-byte 16)))
479 (32 (make-array len :element-type '(unsigned-byte 32)))
480 (t (error "internal error: losing i-vector element size: ~S"
482 (declare (type index len))
483 (done-with-fast-read-byte)
484 (read-n-bytes *fasl-file*
487 (ceiling (the index (* size len))
491 ;;; FOP-SIGNED-INT-VECTOR
493 ;;; Same as FOP-INT-VECTOR, except this is for signed simple-arrays.
494 ;;; It appears that entry 50 and 51 are clear.
495 (define-fop (fop-signed-int-vector 50)
496 (prepare-for-fast-read-byte *fasl-file*
497 (let* ((len (fast-read-u-integer 4))
498 (size (fast-read-byte))
500 (8 (make-array len :element-type '(signed-byte 8)))
501 (16 (make-array len :element-type '(signed-byte 16)))
502 (30 (make-array len :element-type '(signed-byte 30)))
503 (32 (make-array len :element-type '(signed-byte 32)))
504 (t (error "internal error: losing si-vector element size: ~S"
506 (declare (type index len))
507 (done-with-fast-read-byte)
508 (read-n-bytes *fasl-file*
511 (ceiling (the index (* (if (= size 30)
512 32 ; Adjust for (signed-byte 30)
513 size) len)) sb!vm:byte-bits))
516 (define-fop (fop-eval 53)
517 (let ((result (eval (pop-stack))))
518 ;; FIXME: CMU CL had this code here:
519 ;; (when *load-print*
523 ;; Unfortunately, this dependence on the *LOAD-PRINT* global variable is
524 ;; non-ANSI, so for now we've just punted printing in fasload.
527 (define-fop (fop-eval-for-effect 54 nil)
528 (let ((result (eval (pop-stack))))
529 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
530 (declare (ignore result))
531 #+nil (when *load-print*
536 (define-fop (fop-funcall 55)
537 (let ((arg (read-arg 1)))
539 (funcall (pop-stack))
540 (do ((args () (cons (pop-stack) args))
542 ((zerop n) (apply (pop-stack) args))
543 (declare (type index n))))))
545 (define-fop (fop-funcall-for-effect 56 nil)
546 (let ((arg (read-arg 1)))
548 (funcall (pop-stack))
549 (do ((args () (cons (pop-stack) args))
551 ((zerop n) (apply (pop-stack) args))
552 (declare (type index n))))))
554 ;;;; fops for fixing up circularities
556 (define-fop (fop-rplaca 200 nil)
557 (let ((obj (svref *current-fop-table* (read-arg 4)))
560 (setf (car (nthcdr idx obj)) val)))
562 (define-fop (fop-rplacd 201 nil)
563 (let ((obj (svref *current-fop-table* (read-arg 4)))
566 (setf (cdr (nthcdr idx obj)) val)))
568 (define-fop (fop-svset 202 nil)
569 (let* ((obi (read-arg 4))
570 (obj (svref *current-fop-table* obi))
573 (if (typep obj 'instance)
574 (setf (%instance-ref obj idx) val)
575 (setf (svref obj idx) val))))
577 (define-fop (fop-structset 204 nil)
578 (setf (%instance-ref (svref *current-fop-table* (read-arg 4))
582 (define-fop (fop-nthcdr 203 t)
583 (nthcdr (read-arg 4) (pop-stack)))
585 ;;;; fops for loading functions
587 ;;; (In CMU CL there was a FOP-CODE-FORMAT (47) which was
588 ;;; conventionally placed at the beginning of each fasl file to test
589 ;;; for compatibility between the fasl file and the CMU CL which
590 ;;; loaded it. In SBCL, this functionality has been replaced by
591 ;;; putting the implementation and version in required fields in the
592 ;;; fasl file header.)
594 (define-fop (fop-code 58 :nope)
595 (load-code (read-arg 4) (read-arg 4)))
597 (define-fop (fop-small-code 59 :nope)
598 (load-code (read-arg 1) (read-arg 2)))
600 (define-fop (fop-fdefinition 60)
601 (fdefinition-object (pop-stack) t))
603 (define-fop (fop-sanctify-for-execution 61)
604 (let ((component (pop-stack)))
605 (sb!vm:sanctify-for-execution component)
608 ;;; This a no-op except in cold load. (In ordinary warm load, everything
609 ;;; involved with function definition can be handled nicely by ordinary
611 (define-fop (fop-fset 74 nil)
615 ;;; Modify a slot in a Constants object.
616 (define-cloned-fops (fop-alter-code 140 nil) (fop-byte-alter-code 141)
617 (let ((value (pop-stack))
619 (setf (code-header-ref code (clone-arg)) value)
622 (define-fop (fop-function-entry 142)
623 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
624 (error "FOP-FUNCTION-ENTRY can't be defined without %PRIMITIVE.")
626 (let ((type (pop-stack))
627 (arglist (pop-stack))
629 (code-object (pop-stack))
630 (offset (read-arg 4)))
631 (declare (type index offset))
632 (unless (zerop (logand offset sb!vm:lowtag-mask))
633 (error "internal error: unaligned function object, offset = #X~X"
635 (let ((fun (%primitive sb!c:compute-function code-object offset)))
636 (setf (%function-self fun) fun)
637 (setf (%function-next fun) (%code-entry-points code-object))
638 (setf (%code-entry-points code-object) fun)
639 (setf (%function-name fun) name)
640 (setf (%function-arglist fun) arglist)
641 (setf (%function-type fun) type)
642 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
643 #+nil (when *load-print*
645 (format t "~S defined~%" fun))
648 (define-fop (fop-make-byte-compiled-function 143)
649 (let* ((size (read-arg 1))
651 (res (%make-funcallable-instance size layout)))
652 (declare (type index size))
653 (do ((n (1- size) (1- n)))
655 (declare (type (integer -1 #.most-positive-fixnum) n))
656 (setf (%funcallable-instance-info res n) (pop-stack)))
657 (initialize-byte-compiled-function res)
658 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
659 #+nil (when *load-print*
661 (format t "~S defined~%" res))
664 ;;;; Some Dylan fops used to live here. By 1 November 1998 the code was
665 ;;;; sufficiently stale that the functions it called were no longer defined,
666 ;;;; so I (William Harold Newman) deleted it.
668 ;;;; In case someone in the future is trying to make sense of FOP layout,
669 ;;;; it might be worth recording that the Dylan FOPs were
670 ;;;; 100 FOP-DYLAN-SYMBOL-SAVE
671 ;;;; 101 FOP-SMALL-DYLAN-SYMBOL-SAVE
672 ;;;; 102 FOP-DYLAN-KEYWORD-SAVE
673 ;;;; 103 FOP-SMALL-DYLAN-KEYWORD-SAVE
674 ;;;; 104 FOP-DYLAN-VARINFO-VALUE
676 ;;;; assemblerish fops
678 (define-fop (fop-foreign-fixup 147)
679 (let* ((kind (pop-stack))
680 (code-object (pop-stack))
682 (sym (make-string len)))
683 (read-n-bytes *fasl-file* sym 0 len)
684 (sb!vm:fixup-code-object code-object
686 (foreign-symbol-address-as-integer sym)
690 (define-fop (fop-assembler-code 144)
691 (error "cannot load assembler code except at cold load"))
693 (define-fop (fop-assembler-routine 145)
694 (error "cannot load assembler code except at cold load"))
696 (define-fop (fop-assembler-fixup 148)
697 (let ((routine (pop-stack))
699 (code-object (pop-stack)))
700 (multiple-value-bind (value found) (gethash routine *assembler-routines*)
702 (error "undefined assembler routine: ~S" routine))
703 (sb!vm:fixup-code-object code-object (read-arg 4) value kind))
706 (define-fop (fop-code-object-fixup 149)
707 (let ((kind (pop-stack))
708 (code-object (pop-stack)))
709 ;; Note: We don't have to worry about GC moving the code-object after
710 ;; the GET-LISP-OBJ-ADDRESS and before that value is deposited, because
711 ;; we can only use code-object fixups when code-objects don't move.
712 (sb!vm:fixup-code-object code-object (read-arg 4)
713 (get-lisp-obj-address code-object) kind)