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 neither pushes or pops the fop stack.
10 ;;; The body might pop the fop stack. The result of the body is
11 ;;; pushed on the fop stack.
13 ;;; The body might pop the fop stack. The result of the body is
16 ;;; FIXME: Make PUSHP into a &KEY argument accepting a booleana value.
17 ;;; Handle the :PUSHP :NOPE case with a separate :STACKP NIL argument,
18 ;;; meaning "the body doesn't interact with the FOP stack."
19 (defmacro define-fop ((name fop-code &optional (pushp t)) &rest forms)
24 `(with-fop-stack ,pushp ,@forms)))
25 (%define-fop ',name ,fop-code)))
27 ;;; FIXME: This can be byte coded.
28 (defun %define-fop (name code)
29 (let ((oname (svref *fop-names* code)))
30 (when (and oname (not (eq oname name)))
31 (error "multiple names for fop code ~D: ~S and ~S" code name oname)))
32 ;; KLUDGE: It's mnemonically suboptimal to use 'FOP-CODE as the name of the
33 ;; tag which associates names with codes when it's also used as one of
34 ;; the names. Perhaps the fops named FOP-CODE and FOP-SMALL-CODE could
35 ;; be renamed to something more mnemonic? -- WHN 19990902
36 (let ((ocode (get name 'fop-code)))
37 (when (and ocode (/= ocode code))
38 (error "multiple codes for fop name ~S: ~D and ~D" name code ocode)))
39 (setf (svref *fop-names* code) name
40 (get name 'fop-code) code
41 (svref *fop-functions* code) (symbol-function name))
44 ;;; Define a pair of fops which are identical except that one reads
45 ;;; a four-byte argument while the other reads a one-byte argument. The
46 ;;; argument can be accessed by using the Clone-Arg macro.
48 ;;; KLUDGE: It would be nice if the definition here encapsulated which
49 ;;; value ranges went with which fop variant, and chose the correct
50 ;;; fop code to use. Currently, since such logic isn't encapsulated,
51 ;;; we see callers doing stuff like
52 ;;; (cond ((and (< num-consts #x100) (< total-length #x10000))
53 ;;; (dump-fop 'sb!impl::fop-small-code file)
54 ;;; (dump-byte num-consts file)
55 ;;; (dump-integer-as-n-bytes total-length 2 file))
57 ;;; (dump-fop 'sb!impl::fop-code file)
58 ;;; (dump-unsigned-32 num-consts file)
59 ;;; (dump-unsigned-32 total-length file))))
60 ;;; in several places. It would be cleaner if this could be replaced with
62 ;;; (dump-fop file fop-code num-consts total-length)
63 ;;; Some of this logic is already in DUMP-FOP*, but that still requires the
64 ;;; caller to know that it's a 1-byte-arg/4-byte-arg cloned fop pair, and to
65 ;;; know both the 1-byte-arg and the 4-byte-arg fop names. -- WHN 19990902
66 (defmacro define-cloned-fops ((name code &optional (pushp t))
67 (small-name small-code) &rest forms)
68 (check-type pushp (member nil t :nope))
70 (macrolet ((clone-arg () '(read-arg 4)))
71 (define-fop (,name ,code ,pushp) ,@forms))
72 (macrolet ((clone-arg () '(read-arg 1)))
73 (define-fop (,small-name ,small-code ,pushp) ,@forms))))
75 ;;; a helper function for reading string values from FASL files: sort of like
76 ;;; READ-SEQUENCE specialized for files of (UNSIGNED-BYTE 8), with an automatic
77 ;;; conversion from (UNSIGNED-BYTE 8) into CHARACTER for each element read
78 (declaim (ftype (function (stream simple-string &optional index) (values)) read-string-as-bytes))
79 (defun read-string-as-bytes (stream string &optional (length (length string)))
82 (code-char (read-byte stream))))
83 ;; FIXME: The classic CMU CL code to do this was
84 ;; (READ-N-BYTES FILE STRING START END).
85 ;; It was changed for SBCL because we needed a portable version for
86 ;; bootstrapping. Benchmark the non-portable version and see whether it's
87 ;; significantly better than the portable version here. If it is, then use
88 ;; add as an alternate definition, protected with #-SB-XC-HOST.
91 ;;;; miscellaneous fops
93 ;;; FIXME: POP-STACK should be called something more mnemonic. (POP-FOP-STACK?
94 ;;; But that would conflict with PUSH-FOP-TABLE. Something, anyway..)
96 ;;; Setting this variable causes execution of a FOP-NOP4 to produce
97 ;;; output to *DEBUG-IO*. This can be handy when trying to follow the
98 ;;; progress of FASLOAD.
100 (defvar *show-fop-nop4-p* nil)
102 ;;; CMU CL had a single no-op fop, FOP-NOP, with fop code 0. Since 0 occurs
103 ;;; disproportionately often in fasl files for other reasons, FOP-NOP is less
104 ;;; than ideal for writing human-readable patterns into fasl files for
105 ;;; debugging purposes. There's no shortage of unused fop codes, so we add this
106 ;;; second NOP, which reads 4 arbitrary bytes and discards them.
107 (define-fop (fop-nop4 137 :nope)
108 (let ((arg (read-arg 4)))
109 (declare (ignorable arg))
111 (when *show-fop-nop4-p*
112 (format *debug-io* "~&/FOP-NOP4 ARG=~D=#X~X~%" arg arg))))
114 (define-fop (fop-nop 0 :nope))
115 (define-fop (fop-pop 1 nil) (push-fop-table (pop-stack)))
116 (define-fop (fop-push 2) (svref *current-fop-table* (read-arg 4)))
117 (define-fop (fop-byte-push 3) (svref *current-fop-table* (read-arg 1)))
119 (define-fop (fop-empty-list 4) ())
120 (define-fop (fop-truth 5) t)
121 ;;; CMU CL had FOP-POP-FOR-EFFECT as fop 65, but it was never used and seemed
122 ;;; to have no possible use.
123 (define-fop (fop-misc-trap 66)
124 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
125 (error "FOP-MISC-TRAP can't be defined without %PRIMITIVE.")
127 (%primitive sb!c:make-other-immediate-type 0 sb!vm:unbound-marker-type))
129 (define-fop (fop-character 68)
130 (code-char (read-arg 3)))
131 ;;; CMU CL had FOP-CHARACTER as fop 68, but it's not needed in current
132 ;;; SBCL as we have no extended characters, only 1-byte characters.
133 ;;; (Ditto for CMU CL, actually: FOP-CHARACTER was speculative generality.)
134 (define-fop (fop-short-character 69)
135 (code-char (read-arg 1)))
137 (define-cloned-fops (fop-struct 48) (fop-small-struct 49)
138 (let* ((size (clone-arg))
139 (res (%make-instance size)))
140 (declare (type index size))
141 (do ((n (1- size) (1- n)))
143 (declare (type (integer -1 #.most-positive-fixnum) n))
144 (setf (%instance-ref res n) (pop-stack)))
147 (define-fop (fop-layout 45)
148 (let ((length (pop-stack))
149 (depthoid (pop-stack))
150 (inherits (pop-stack))
152 (find-and-init-or-check-layout name length inherits depthoid)))
154 (define-fop (fop-end-group 64 :nope)
155 (throw 'fasl-group-end t))
157 ;;; In the normal loader, we just ignore these. GENESIS overwrites
158 ;;; FOP-MAYBE-COLD-LOAD with something that knows whether to revert to
159 ;;; cold-loading or not.
160 (define-fop (fop-normal-load 81 :nope))
161 (define-fop (fop-maybe-cold-load 82 :nope))
163 (define-fop (fop-verify-table-size 62 :nope)
164 (let ((expected-index (read-arg 4)))
165 (unless (= *current-fop-table-index* expected-index)
166 (error "internal error: fasl table of improper size"))))
167 (define-fop (fop-verify-empty-stack 63 :nope)
168 (unless (= *fop-stack-pointer* *fop-stack-pointer-on-entry*)
169 (error "internal error: fasl stack not empty when it should be")))
171 ;;;; fops for loading symbols
173 (defvar *load-symbol-buffer* (make-string 100))
174 (declaim (simple-string *load-symbol-buffer*))
175 (defvar *load-symbol-buffer-size* 100)
176 (declaim (type index *load-symbol-buffer-size*))
178 ;;; (1) *LOAD-SYMBOL-BUFFER-SIZE* is redundant, should just be
179 ;;; (LENGTH *LOAD-SYMBOL-BUFFER*).
180 ;;; (2) *LOAD-SYMBOL-BUFFER* should not have a global value, but should
181 ;;; be bound on entry to FASLOAD, and it should be renamed to
182 ;;; *FASLOAD-SYMBOL-BUFFER*.
184 (macrolet (;; FIXME: Should all this code really be duplicated inside
185 ;; each fop? Perhaps it would be better for this shared
186 ;; code to live in FLET FROB1 and FLET FROB4 (for the
187 ;; two different sizes of counts).
188 (frob (name code name-size package)
189 (let ((n-package (gensym))
192 `(define-fop (,name ,code)
193 (prepare-for-fast-read-byte *fasl-file*
194 (let ((,n-package ,package)
195 (,n-size (fast-read-u-integer ,name-size)))
196 (when (> ,n-size *load-symbol-buffer-size*)
197 (setq *load-symbol-buffer*
198 (make-string (setq *load-symbol-buffer-size*
200 (done-with-fast-read-byte)
201 (let ((,n-buffer *load-symbol-buffer*))
202 (read-string-as-bytes *fasl-file*
205 (push-fop-table (intern* ,n-buffer
209 ;; Note: CMU CL had FOP-SYMBOL-SAVE and FOP-SMALL-SYMBOL-SAVE, but since they
210 ;; made the behavior of the fasloader depend on the *PACKAGE* variable, not
211 ;; only were they a pain to support (because they required various hacks to
212 ;; handle *PACKAGE*-manipulation forms) they were basically broken by design,
213 ;; because ANSI gives the user so much flexibility in manipulating *PACKAGE*
214 ;; at load-time that no reasonable hacks could possibly make things work
215 ;; right. The ones used in CMU CL certainly didn't, as shown by e.g.
216 ;; (IN-PACKAGE :CL-USER)
217 ;; (DEFVAR CL::*FOO* 'FOO-VALUE)
218 ;; (EVAL-WHEN (:COMPILE-TOPLEVEL :LOAD-TOPLEVEL :EXECUTE)
219 ;; (SETF *PACKAGE* (FIND-PACKAGE :CL)))
220 ;; which in CMU CL 2.4.9 defines a variable CL-USER::*FOO* instead of
221 ;; defining CL::*FOO*. Therefore, we don't use those fops in SBCL.
222 ;;(frob fop-symbol-save 6 4 *package*)
223 ;;(frob fop-small-symbol-save 7 1 *package*)
225 (frob fop-lisp-symbol-save 75 4 *cl-package*)
226 (frob fop-lisp-small-symbol-save 76 1 *cl-package*)
227 (frob fop-keyword-symbol-save 77 4 *keyword-package*)
228 (frob fop-keyword-small-symbol-save 78 1 *keyword-package*)
230 ;; FIXME: Because we don't have FOP-SYMBOL-SAVE any more, an enormous number
231 ;; of symbols will fall through to this case, probably resulting in bloated
233 ;; FOP-SYMBOL-IN-LAST-PACKAGE-SAVE/FOP-SMALL-SYMBOL-IN-LAST-PACKAGE-SAVE
234 ;; cloned fop pair could undo some of this bloat.
235 (frob fop-symbol-in-package-save 8 4
236 (svref *current-fop-table* (fast-read-u-integer 4)))
237 (frob fop-small-symbol-in-package-save 9 1
238 (svref *current-fop-table* (fast-read-u-integer 4)))
239 (frob fop-symbol-in-byte-package-save 10 4
240 (svref *current-fop-table* (fast-read-u-integer 1)))
241 (frob fop-small-symbol-in-byte-package-save 11 1
242 (svref *current-fop-table* (fast-read-u-integer 1))))
244 (define-cloned-fops (fop-uninterned-symbol-save 12)
245 (fop-uninterned-small-symbol-save 13)
246 (let* ((arg (clone-arg))
247 (res (make-string arg)))
248 (read-string-as-bytes *fasl-file* res)
249 (push-fop-table (make-symbol res))))
251 (define-fop (fop-package 14)
252 (find-undeleted-package-or-lose (pop-stack)))
254 ;;;; fops for loading numbers
256 ;;; Load a signed integer LENGTH bytes long from *FASL-FILE*.
257 (defun load-s-integer (length)
258 (declare (fixnum length))
259 ;; #+cmu (declare (optimize (inhibit-warnings 2)))
260 (do* ((index length (1- index))
261 (byte 0 (read-byte *fasl-file*))
262 (result 0 (+ result (ash byte bits)))
265 (if (logbitp 7 byte) ; look at sign bit
266 (- result (ash 1 bits))
268 (declare (fixnum index byte bits))))
270 (define-cloned-fops (fop-integer 33) (fop-small-integer 34)
271 (load-s-integer (clone-arg)))
273 (define-fop (fop-word-integer 35)
274 (prepare-for-fast-read-byte *fasl-file*
276 (fast-read-s-integer 4)
277 (done-with-fast-read-byte))))
279 (define-fop (fop-byte-integer 36)
280 (prepare-for-fast-read-byte *fasl-file*
282 (fast-read-s-integer 1)
283 (done-with-fast-read-byte))))
285 (define-fop (fop-ratio 70)
286 (let ((den (pop-stack)))
287 (%make-ratio (pop-stack) den)))
289 (define-fop (fop-complex 71)
290 (let ((im (pop-stack)))
291 (%make-complex (pop-stack) im)))
293 (define-fop (fop-complex-single-float 72)
294 (prepare-for-fast-read-byte *fasl-file*
296 (complex (make-single-float (fast-read-s-integer 4))
297 (make-single-float (fast-read-s-integer 4)))
298 (done-with-fast-read-byte))))
300 (define-fop (fop-complex-double-float 73)
301 (prepare-for-fast-read-byte *fasl-file*
303 (let* ((re-lo (fast-read-u-integer 4))
304 (re-hi (fast-read-u-integer 4))
305 (re (make-double-float re-hi re-lo))
306 (im-lo (fast-read-u-integer 4))
307 (im-hi (fast-read-u-integer 4))
308 (im (make-double-float im-hi im-lo)))
310 (done-with-fast-read-byte))))
313 (define-fop (fop-complex-long-float 67)
314 (prepare-for-fast-read-byte *fasl-file*
316 (let* ((re-lo (fast-read-u-integer 4))
317 #!+sparc (re-mid (fast-read-u-integer 4))
318 (re-hi (fast-read-u-integer 4))
319 (re-exp (fast-read-s-integer #!+x86 2 #!+sparc 4))
320 (re (make-long-float re-exp re-hi #!+sparc re-mid re-lo))
321 (im-lo (fast-read-u-integer 4))
322 #!+sparc (im-mid (fast-read-u-integer 4))
323 (im-hi (fast-read-u-integer 4))
324 (im-exp (fast-read-s-integer #!+x86 2 #!+sparc 4))
325 (im (make-long-float im-exp im-hi #!+sparc im-mid im-lo)))
327 (done-with-fast-read-byte))))
329 (define-fop (fop-single-float 46)
330 (prepare-for-fast-read-byte *fasl-file*
331 (prog1 (make-single-float (fast-read-s-integer 4))
332 (done-with-fast-read-byte))))
334 (define-fop (fop-double-float 47)
335 (prepare-for-fast-read-byte *fasl-file*
337 (let ((lo (fast-read-u-integer 4)))
338 (make-double-float (fast-read-s-integer 4) lo))
339 (done-with-fast-read-byte))))
342 (define-fop (fop-long-float 52)
343 (prepare-for-fast-read-byte *fasl-file*
345 (let ((lo (fast-read-u-integer 4))
346 #!+sparc (mid (fast-read-u-integer 4))
347 (hi (fast-read-u-integer 4))
348 (exp (fast-read-s-integer #!+x86 2 #!+sparc 4)))
349 (make-long-float exp hi #!+sparc mid lo))
350 (done-with-fast-read-byte))))
354 (define-fop (fop-list 15)
355 (do ((res () (cons (pop-stack) res))
356 (n (read-arg 1) (1- n)))
358 (declare (type index n))))
360 (define-fop (fop-list* 16)
361 (do ((res (pop-stack) (cons (pop-stack) res))
362 (n (read-arg 1) (1- n)))
364 (declare (type index n))))
366 (macrolet ((frob (name op fun n)
367 `(define-fop (,name ,op)
368 (call-with-popped-things ,fun ,n))))
370 (frob fop-list-1 17 list 1)
371 (frob fop-list-2 18 list 2)
372 (frob fop-list-3 19 list 3)
373 (frob fop-list-4 20 list 4)
374 (frob fop-list-5 21 list 5)
375 (frob fop-list-6 22 list 6)
376 (frob fop-list-7 23 list 7)
377 (frob fop-list-8 24 list 8)
379 (frob fop-list*-1 25 list* 2)
380 (frob fop-list*-2 26 list* 3)
381 (frob fop-list*-3 27 list* 4)
382 (frob fop-list*-4 28 list* 5)
383 (frob fop-list*-5 29 list* 6)
384 (frob fop-list*-6 30 list* 7)
385 (frob fop-list*-7 31 list* 8)
386 (frob fop-list*-8 32 list* 9))
388 ;;;; fops for loading arrays
390 (define-cloned-fops (fop-string 37) (fop-small-string 38)
391 (let* ((arg (clone-arg))
392 (res (make-string arg)))
393 (read-string-as-bytes *fasl-file* res)
396 (define-cloned-fops (fop-vector 39) (fop-small-vector 40)
397 (let* ((size (clone-arg))
398 (res (make-array size)))
399 (declare (fixnum size))
400 (do ((n (1- size) (1- n)))
402 (setf (svref res n) (pop-stack)))
405 (define-fop (fop-array 83)
406 (let* ((rank (read-arg 4))
408 (length (length vec))
409 (res (make-array-header sb!vm:simple-array-type rank)))
410 (declare (simple-array vec)
411 (type (unsigned-byte 24) rank))
412 (set-array-header res vec length length 0
414 (dimensions () (cons (pop-stack) dimensions)))
415 ((zerop i) dimensions)
416 (declare (type index i)))
420 (define-fop (fop-single-float-vector 84)
421 (let* ((length (read-arg 4))
422 (result (make-array length :element-type 'single-float)))
423 (read-n-bytes *fasl-file* result 0 (* length sb!vm:word-bytes))
426 (define-fop (fop-double-float-vector 85)
427 (let* ((length (read-arg 4))
428 (result (make-array length :element-type 'double-float)))
429 (read-n-bytes *fasl-file* result 0 (* length sb!vm:word-bytes 2))
433 (define-fop (fop-long-float-vector 88)
434 (let* ((length (read-arg 4))
435 (result (make-array length :element-type 'long-float)))
436 (read-n-bytes *fasl-file*
439 (* length sb!vm:word-bytes #!+x86 3 #!+sparc 4))
442 (define-fop (fop-complex-single-float-vector 86)
443 (let* ((length (read-arg 4))
444 (result (make-array length :element-type '(complex single-float))))
445 (read-n-bytes *fasl-file* result 0 (* length sb!vm:word-bytes 2))
448 (define-fop (fop-complex-double-float-vector 87)
449 (let* ((length (read-arg 4))
450 (result (make-array length :element-type '(complex double-float))))
451 (read-n-bytes *fasl-file* result 0 (* length sb!vm:word-bytes 2 2))
455 (define-fop (fop-complex-long-float-vector 89)
456 (let* ((length (read-arg 4))
457 (result (make-array length :element-type '(complex long-float))))
458 (read-n-bytes *fasl-file* result 0
459 (* length sb!vm:word-bytes #!+x86 3 #!+sparc 4 2))
462 ;;; *** NOT *** the FOP-INT-VECTOR as currently documented in rtguts. Size
463 ;;; must be a directly supported I-vector element size, with no extra bits.
464 ;;; This must be packed according to the local byte-ordering, allowing us to
465 ;;; directly read the bits.
466 (define-fop (fop-int-vector 43)
467 (prepare-for-fast-read-byte *fasl-file*
468 (let* ((len (fast-read-u-integer 4))
469 (size (fast-read-byte))
471 (1 (make-array len :element-type 'bit))
472 (2 (make-array len :element-type '(unsigned-byte 2)))
473 (4 (make-array len :element-type '(unsigned-byte 4)))
474 (8 (make-array len :element-type '(unsigned-byte 8)))
475 (16 (make-array len :element-type '(unsigned-byte 16)))
476 (32 (make-array len :element-type '(unsigned-byte 32)))
477 (t (error "internal error: losing i-vector element size: ~S"
479 (declare (type index len))
480 (done-with-fast-read-byte)
481 (read-n-bytes *fasl-file*
484 (ceiling (the index (* size len))
488 ;;; FOP-SIGNED-INT-VECTOR
490 ;;; Same as FOP-INT-VECTOR, except this is for signed simple-arrays.
491 ;;; It appears that entry 50 and 51 are clear.
492 (define-fop (fop-signed-int-vector 50)
493 (prepare-for-fast-read-byte *fasl-file*
494 (let* ((len (fast-read-u-integer 4))
495 (size (fast-read-byte))
497 (8 (make-array len :element-type '(signed-byte 8)))
498 (16 (make-array len :element-type '(signed-byte 16)))
499 (30 (make-array len :element-type '(signed-byte 30)))
500 (32 (make-array len :element-type '(signed-byte 32)))
501 (t (error "internal error: losing si-vector element size: ~S"
503 (declare (type index len))
504 (done-with-fast-read-byte)
505 (read-n-bytes *fasl-file*
508 (ceiling (the index (* (if (= size 30)
509 32 ; Adjust for (signed-byte 30)
510 size) len)) sb!vm:byte-bits))
513 (define-fop (fop-eval 53)
514 (let ((result (eval (pop-stack))))
515 ;; FIXME: CMU CL had this code here:
516 ;; (when *load-print*
520 ;; Unfortunately, this dependence on the *LOAD-PRINT* global variable is
521 ;; non-ANSI, so for now we've just punted printing in fasload.
524 (define-fop (fop-eval-for-effect 54 nil)
525 (let ((result (eval (pop-stack))))
526 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
527 (declare (ignore result))
528 #+nil (when *load-print*
533 (define-fop (fop-funcall 55)
534 (let ((arg (read-arg 1)))
536 (funcall (pop-stack))
537 (do ((args () (cons (pop-stack) args))
539 ((zerop n) (apply (pop-stack) args))
540 (declare (type index n))))))
542 (define-fop (fop-funcall-for-effect 56 nil)
543 (let ((arg (read-arg 1)))
545 (funcall (pop-stack))
546 (do ((args () (cons (pop-stack) args))
548 ((zerop n) (apply (pop-stack) args))
549 (declare (type index n))))))
551 ;;;; fops for fixing up circularities
553 (define-fop (fop-rplaca 200 nil)
554 (let ((obj (svref *current-fop-table* (read-arg 4)))
557 (setf (car (nthcdr idx obj)) val)))
559 (define-fop (fop-rplacd 201 nil)
560 (let ((obj (svref *current-fop-table* (read-arg 4)))
563 (setf (cdr (nthcdr idx obj)) val)))
565 (define-fop (fop-svset 202 nil)
566 (let* ((obi (read-arg 4))
567 (obj (svref *current-fop-table* obi))
570 (if (typep obj 'instance)
571 (setf (%instance-ref obj idx) val)
572 (setf (svref obj idx) val))))
574 (define-fop (fop-structset 204 nil)
575 (setf (%instance-ref (svref *current-fop-table* (read-arg 4))
579 (define-fop (fop-nthcdr 203 t)
580 (nthcdr (read-arg 4) (pop-stack)))
582 ;;;; fops for loading functions
584 ;;; (In CMU CL there was a FOP-CODE-FORMAT (47) which was
585 ;;; conventionally placed at the beginning of each fasl file to test
586 ;;; for compatibility between the fasl file and the CMU CL which
587 ;;; loaded it. In SBCL, this functionality has been replaced by
588 ;;; putting the implementation and version in required fields in the
589 ;;; fasl file header.)
591 (define-fop (fop-code 58 :nope)
592 (load-code (read-arg 4) (read-arg 4)))
594 (define-fop (fop-small-code 59 :nope)
595 (load-code (read-arg 1) (read-arg 2)))
597 (define-fop (fop-fdefinition 60)
598 (fdefinition-object (pop-stack) t))
600 (define-fop (fop-sanctify-for-execution 61)
601 (let ((component (pop-stack)))
602 (sb!vm:sanctify-for-execution component)
605 ;;; This a no-op except in cold load. (In ordinary warm load, everything
606 ;;; involved with function definition can be handled nicely by ordinary
608 (define-fop (fop-fset 74 nil)
612 ;;; Modify a slot in a Constants object.
613 (define-cloned-fops (fop-alter-code 140 nil) (fop-byte-alter-code 141)
614 (let ((value (pop-stack))
616 (setf (code-header-ref code (clone-arg)) value)
619 (define-fop (fop-function-entry 142)
620 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
621 (error "FOP-FUNCTION-ENTRY can't be defined without %PRIMITIVE.")
623 (let ((type (pop-stack))
624 (arglist (pop-stack))
626 (code-object (pop-stack))
627 (offset (read-arg 4)))
628 (declare (type index offset))
629 (unless (zerop (logand offset sb!vm:lowtag-mask))
630 (error "internal error: unaligned function object, offset = #X~X"
632 (let ((fun (%primitive sb!c:compute-function code-object offset)))
633 (setf (%function-self fun) fun)
634 (setf (%function-next fun) (%code-entry-points code-object))
635 (setf (%code-entry-points code-object) fun)
636 (setf (%function-name fun) name)
637 (setf (%function-arglist fun) arglist)
638 (setf (%function-type fun) type)
639 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
640 #+nil (when *load-print*
642 (format t "~S defined~%" fun))
645 (define-fop (fop-make-byte-compiled-function 143)
646 (let* ((size (read-arg 1))
648 (res (%make-funcallable-instance size layout)))
649 (declare (type index size))
650 (do ((n (1- size) (1- n)))
652 (declare (type (integer -1 #.most-positive-fixnum) n))
653 (setf (%funcallable-instance-info res n) (pop-stack)))
654 (initialize-byte-compiled-function res)
655 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
656 #+nil (when *load-print*
658 (format t "~S defined~%" res))
661 ;;;; Some Dylan fops used to live here. By 1 November 1998 the code was
662 ;;;; sufficiently stale that the functions it called were no longer defined,
663 ;;;; so I (William Harold Newman) deleted it.
665 ;;;; In case someone in the future is trying to make sense of FOP layout,
666 ;;;; it might be worth recording that the Dylan FOPs were
667 ;;;; 100 FOP-DYLAN-SYMBOL-SAVE
668 ;;;; 101 FOP-SMALL-DYLAN-SYMBOL-SAVE
669 ;;;; 102 FOP-DYLAN-KEYWORD-SAVE
670 ;;;; 103 FOP-SMALL-DYLAN-KEYWORD-SAVE
671 ;;;; 104 FOP-DYLAN-VARINFO-VALUE
673 ;;;; assemblerish fops
675 (define-fop (fop-foreign-fixup 147)
676 (let* ((kind (pop-stack))
677 (code-object (pop-stack))
679 (sym (make-string len)))
680 (read-n-bytes *fasl-file* sym 0 len)
681 (sb!vm:fixup-code-object code-object
683 (foreign-symbol-address-as-integer sym)
687 (define-fop (fop-assembler-code 144)
688 (error "cannot load assembler code except at cold load"))
690 (define-fop (fop-assembler-routine 145)
691 (error "cannot load assembler code except at cold load"))
693 (define-fop (fop-assembler-fixup 148)
694 (let ((routine (pop-stack))
696 (code-object (pop-stack)))
697 (multiple-value-bind (value found) (gethash routine *assembler-routines*)
699 (error "undefined assembler routine: ~S" routine))
700 (sb!vm:fixup-code-object code-object (read-arg 4) value kind))
703 (define-fop (fop-code-object-fixup 149)
704 (let ((kind (pop-stack))
705 (code-object (pop-stack)))
706 ;; Note: We don't have to worry about GC moving the code-object after
707 ;; the GET-LISP-OBJ-ADDRESS and before that value is deposited, because
708 ;; we can only use code-object fixups when code-objects don't move.
709 (sb!vm:fixup-code-object code-object (read-arg 4)
710 (get-lisp-obj-address code-object) kind)