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 (defun %define-fop (name code)
28 (let ((oname (svref *fop-names* code)))
29 (when (and oname (not (eq oname name)))
30 (error "multiple names for fop code ~D: ~S and ~S" code name oname)))
31 ;; KLUDGE: It's mnemonically suboptimal to use 'FOP-CODE as the name of the
32 ;; tag which associates names with codes when it's also used as one of
33 ;; the names. Perhaps the fops named FOP-CODE and FOP-SMALL-CODE could
34 ;; be renamed to something more mnemonic? -- WHN 19990902
35 (let ((ocode (get name 'fop-code)))
36 (when (and ocode (/= ocode code))
37 (error "multiple codes for fop name ~S: ~D and ~D" name code ocode)))
38 (setf (svref *fop-names* code) name
39 (get name 'fop-code) code
40 (svref *fop-functions* code) (symbol-function name))
43 ;;; Define a pair of fops which are identical except that one reads
44 ;;; a four-byte argument while the other reads a one-byte argument. The
45 ;;; argument can be accessed by using the Clone-Arg macro.
47 ;;; KLUDGE: It would be nice if the definition here encapsulated which
48 ;;; value ranges went with which fop variant, and chose the correct
49 ;;; fop code to use. Currently, since such logic isn't encapsulated,
50 ;;; we see callers doing stuff like
51 ;;; (cond ((and (< num-consts #x100) (< total-length #x10000))
52 ;;; (dump-fop 'sb!impl::fop-small-code file)
53 ;;; (dump-byte num-consts file)
54 ;;; (dump-integer-as-n-bytes total-length 2 file))
56 ;;; (dump-fop 'sb!impl::fop-code file)
57 ;;; (dump-unsigned-32 num-consts file)
58 ;;; (dump-unsigned-32 total-length file))))
59 ;;; in several places. It would be cleaner if this could be replaced with
61 ;;; (dump-fop file fop-code num-consts total-length)
62 ;;; Some of this logic is already in DUMP-FOP*, but that still requires the
63 ;;; caller to know that it's a 1-byte-arg/4-byte-arg cloned fop pair, and to
64 ;;; know both the 1-byte-arg and the 4-byte-arg fop names. -- WHN 19990902
65 (defmacro define-cloned-fops ((name code &optional (pushp t))
66 (small-name small-code) &rest forms)
67 (aver (member pushp '(nil t :nope)))
69 (macrolet ((clone-arg () '(read-arg 4)))
70 (define-fop (,name ,code ,pushp) ,@forms))
71 (macrolet ((clone-arg () '(read-arg 1)))
72 (define-fop (,small-name ,small-code ,pushp) ,@forms))))
74 ;;; a helper function for reading string values from FASL files: sort
75 ;;; of like READ-SEQUENCE specialized for files of (UNSIGNED-BYTE 8),
76 ;;; with an automatic conversion from (UNSIGNED-BYTE 8) into CHARACTER
77 ;;; 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 FASL loading.
100 (defvar *show-fop-nop4-p* nil)
102 ;;; CMU CL had a single no-op fop, FOP-NOP, with fop code 0. Since 0
103 ;;; occurs disproportionately often in fasl files for other reasons,
104 ;;; FOP-NOP is less than ideal for writing human-readable patterns
105 ;;; into fasl files for debugging purposes. There's no shortage of
106 ;;; unused fop codes, so we add this second NOP, which reads 4
107 ;;; arbitrary bytes and discards them.
108 (define-fop (fop-nop4 137 :nope)
109 (let ((arg (read-arg 4)))
110 (declare (ignorable arg))
112 (when *show-fop-nop4-p*
113 (format *debug-io* "~&/FOP-NOP4 ARG=~W=#X~X~%" arg arg))))
115 (define-fop (fop-nop 0 :nope))
116 (define-fop (fop-pop 1 nil) (push-fop-table (pop-stack)))
117 (define-fop (fop-push 2) (svref *current-fop-table* (read-arg 4)))
118 (define-fop (fop-byte-push 3) (svref *current-fop-table* (read-arg 1)))
120 (define-fop (fop-empty-list 4) ())
121 (define-fop (fop-truth 5) t)
122 ;;; CMU CL had FOP-POP-FOR-EFFECT as fop 65, but it was never used and seemed
123 ;;; to have no possible use.
124 (define-fop (fop-misc-trap 66)
125 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
126 (error "FOP-MISC-TRAP can't be defined without %PRIMITIVE.")
128 (%primitive sb!c:make-other-immediate-type 0 sb!vm:unbound-marker-widetag))
130 (define-fop (fop-character 68)
131 (code-char (read-arg 3)))
132 ;;; CMU CL had FOP-CHARACTER as fop 68, but it's not needed in current
133 ;;; SBCL as we have no extended characters, only 1-byte characters.
134 ;;; (Ditto for CMU CL, actually: FOP-CHARACTER was speculative generality.)
135 (define-fop (fop-short-character 69)
136 (code-char (read-arg 1)))
138 (define-cloned-fops (fop-struct 48) (fop-small-struct 49)
139 (let* ((size (clone-arg))
140 (res (%make-instance size)))
141 (declare (type index size))
142 (do ((n (1- size) (1- n)))
144 (declare (type (integer -1 #.most-positive-fixnum) n))
145 (setf (%instance-ref res n) (pop-stack)))
148 (define-fop (fop-layout 45)
149 (let ((length (pop-stack))
150 (depthoid (pop-stack))
151 (inherits (pop-stack))
153 (find-and-init-or-check-layout name length inherits depthoid)))
155 (define-fop (fop-end-group 64 :nope)
156 (/show0 "THROWing FASL-GROUP-END")
157 (throw 'fasl-group-end t))
159 ;;; In the normal loader, we just ignore these. GENESIS overwrites
160 ;;; FOP-MAYBE-COLD-LOAD with something that knows whether to revert to
161 ;;; cold-loading or not.
162 (define-fop (fop-normal-load 81 :nope))
163 (define-fop (fop-maybe-cold-load 82 :nope))
165 (define-fop (fop-verify-table-size 62 :nope)
166 (let ((expected-index (read-arg 4)))
167 (unless (= *current-fop-table-index* expected-index)
168 (error "internal error: fasl table of improper size"))))
169 (define-fop (fop-verify-empty-stack 63 :nope)
170 (unless (= *fop-stack-pointer* *fop-stack-pointer-on-entry*)
171 (error "internal error: fasl stack not empty when it should be")))
173 ;;;; fops for loading symbols
175 (defvar *load-symbol-buffer* (make-string 100))
176 (declaim (simple-string *load-symbol-buffer*))
177 (defvar *load-symbol-buffer-size* 100)
178 (declaim (type index *load-symbol-buffer-size*))
180 ;;; (1) *LOAD-SYMBOL-BUFFER-SIZE* is redundant, should just be
181 ;;; (LENGTH *LOAD-SYMBOL-BUFFER*).
182 ;;; (2) *LOAD-SYMBOL-BUFFER* should not have a global value, but should
183 ;;; be bound on entry to FASL loading, and it should be renamed to
184 ;;; *FASL-SYMBOL-BUFFER*.
186 (macrolet (;; FIXME: Should all this code really be duplicated inside
187 ;; each fop? Perhaps it would be better for this shared
188 ;; code to live in FLET FROB1 and FLET FROB4 (for the
189 ;; two different sizes of counts).
190 (frob (name code name-size package)
191 (let ((n-package (gensym))
194 `(define-fop (,name ,code)
195 (prepare-for-fast-read-byte *fasl-input-stream*
196 (let ((,n-package ,package)
197 (,n-size (fast-read-u-integer ,name-size)))
198 (when (> ,n-size *load-symbol-buffer-size*)
199 (setq *load-symbol-buffer*
200 (make-string (setq *load-symbol-buffer-size*
202 (done-with-fast-read-byte)
203 (let ((,n-buffer *load-symbol-buffer*))
204 (read-string-as-bytes *fasl-input-stream*
207 (push-fop-table (intern* ,n-buffer
211 ;; Note: CMU CL had FOP-SYMBOL-SAVE and FOP-SMALL-SYMBOL-SAVE, but
212 ;; since they made the behavior of the fasloader depend on the
213 ;; *PACKAGE* variable, not only were they a pain to support (because
214 ;; they required various hacks to handle *PACKAGE*-manipulation
215 ;; forms) they were basically broken by design, because ANSI gives
216 ;; the user so much flexibility in manipulating *PACKAGE* at
217 ;; load-time that no reasonable hacks could possibly make things
218 ;; work right. The ones used in CMU CL certainly didn't, as shown by
220 ;; (IN-PACKAGE :CL-USER)
221 ;; (DEFVAR CL::*FOO* 'FOO-VALUE)
222 ;; (EVAL-WHEN (:COMPILE-TOPLEVEL :LOAD-TOPLEVEL :EXECUTE)
223 ;; (SETF *PACKAGE* (FIND-PACKAGE :CL)))
224 ;; which in CMU CL 2.4.9 defines a variable CL-USER::*FOO* instead of
225 ;; defining CL::*FOO*. Therefore, we don't use those fops in SBCL.
226 ;;(frob fop-symbol-save 6 4 *package*)
227 ;;(frob fop-small-symbol-save 7 1 *package*)
229 (frob fop-lisp-symbol-save 75 4 *cl-package*)
230 (frob fop-lisp-small-symbol-save 76 1 *cl-package*)
231 (frob fop-keyword-symbol-save 77 4 *keyword-package*)
232 (frob fop-keyword-small-symbol-save 78 1 *keyword-package*)
234 ;; FIXME: Because we don't have FOP-SYMBOL-SAVE any more, an enormous number
235 ;; of symbols will fall through to this case, probably resulting in bloated
237 ;; FOP-SYMBOL-IN-LAST-PACKAGE-SAVE/FOP-SMALL-SYMBOL-IN-LAST-PACKAGE-SAVE
238 ;; cloned fop pair could undo some of this bloat.
239 (frob fop-symbol-in-package-save 8 4
240 (svref *current-fop-table* (fast-read-u-integer 4)))
241 (frob fop-small-symbol-in-package-save 9 1
242 (svref *current-fop-table* (fast-read-u-integer 4)))
243 (frob fop-symbol-in-byte-package-save 10 4
244 (svref *current-fop-table* (fast-read-u-integer 1)))
245 (frob fop-small-symbol-in-byte-package-save 11 1
246 (svref *current-fop-table* (fast-read-u-integer 1))))
248 (define-cloned-fops (fop-uninterned-symbol-save 12)
249 (fop-uninterned-small-symbol-save 13)
250 (let* ((arg (clone-arg))
251 (res (make-string arg)))
252 (read-string-as-bytes *fasl-input-stream* res)
253 (push-fop-table (make-symbol res))))
255 (define-fop (fop-package 14)
256 (find-undeleted-package-or-lose (pop-stack)))
258 ;;;; fops for loading numbers
260 ;;; Load a signed integer LENGTH bytes long from *FASL-INPUT-STREAM*.
261 (defun load-s-integer (length)
262 (declare (fixnum length))
263 ;; #+cmu (declare (optimize (inhibit-warnings 2)))
264 (do* ((index length (1- index))
265 (byte 0 (read-byte *fasl-input-stream*))
266 (result 0 (+ result (ash byte bits)))
269 (if (logbitp 7 byte) ; look at sign bit
270 (- result (ash 1 bits))
272 (declare (fixnum index byte bits))))
274 (define-cloned-fops (fop-integer 33) (fop-small-integer 34)
275 (load-s-integer (clone-arg)))
277 (define-fop (fop-word-integer 35)
278 (prepare-for-fast-read-byte *fasl-input-stream*
280 (fast-read-s-integer 4)
281 (done-with-fast-read-byte))))
283 (define-fop (fop-byte-integer 36)
284 (prepare-for-fast-read-byte *fasl-input-stream*
286 (fast-read-s-integer 1)
287 (done-with-fast-read-byte))))
289 (define-fop (fop-ratio 70)
290 (let ((den (pop-stack)))
291 (%make-ratio (pop-stack) den)))
293 (define-fop (fop-complex 71)
294 (let ((im (pop-stack)))
295 (%make-complex (pop-stack) im)))
297 (define-fop (fop-complex-single-float 72)
298 (prepare-for-fast-read-byte *fasl-input-stream*
300 (complex (make-single-float (fast-read-s-integer 4))
301 (make-single-float (fast-read-s-integer 4)))
302 (done-with-fast-read-byte))))
304 (define-fop (fop-complex-double-float 73)
305 (prepare-for-fast-read-byte *fasl-input-stream*
307 (let* ((re-lo (fast-read-u-integer 4))
308 (re-hi (fast-read-u-integer 4))
309 (re (make-double-float re-hi re-lo))
310 (im-lo (fast-read-u-integer 4))
311 (im-hi (fast-read-u-integer 4))
312 (im (make-double-float im-hi im-lo)))
314 (done-with-fast-read-byte))))
317 (define-fop (fop-complex-long-float 67)
318 (prepare-for-fast-read-byte *fasl-input-stream*
320 (let* ((re-lo (fast-read-u-integer 4))
321 #!+sparc (re-mid (fast-read-u-integer 4))
322 (re-hi (fast-read-u-integer 4))
323 (re-exp (fast-read-s-integer #!+x86 2 #!+sparc 4))
324 (re (make-long-float re-exp re-hi #!+sparc re-mid re-lo))
325 (im-lo (fast-read-u-integer 4))
326 #!+sparc (im-mid (fast-read-u-integer 4))
327 (im-hi (fast-read-u-integer 4))
328 (im-exp (fast-read-s-integer #!+x86 2 #!+sparc 4))
329 (im (make-long-float im-exp im-hi #!+sparc im-mid im-lo)))
331 (done-with-fast-read-byte))))
333 (define-fop (fop-single-float 46)
334 (prepare-for-fast-read-byte *fasl-input-stream*
335 (prog1 (make-single-float (fast-read-s-integer 4))
336 (done-with-fast-read-byte))))
338 (define-fop (fop-double-float 47)
339 (prepare-for-fast-read-byte *fasl-input-stream*
341 (let ((lo (fast-read-u-integer 4)))
342 (make-double-float (fast-read-s-integer 4) lo))
343 (done-with-fast-read-byte))))
346 (define-fop (fop-long-float 52)
347 (prepare-for-fast-read-byte *fasl-input-stream*
349 (let ((lo (fast-read-u-integer 4))
350 #!+sparc (mid (fast-read-u-integer 4))
351 (hi (fast-read-u-integer 4))
352 (exp (fast-read-s-integer #!+x86 2 #!+sparc 4)))
353 (make-long-float exp hi #!+sparc mid lo))
354 (done-with-fast-read-byte))))
358 (define-fop (fop-list 15)
359 (do ((res () (cons (pop-stack) res))
360 (n (read-arg 1) (1- n)))
362 (declare (type index n))))
364 (define-fop (fop-list* 16)
365 (do ((res (pop-stack) (cons (pop-stack) res))
366 (n (read-arg 1) (1- n)))
368 (declare (type index n))))
370 (macrolet ((frob (name op fun n)
371 `(define-fop (,name ,op)
372 (call-with-popped-things ,fun ,n))))
374 (frob fop-list-1 17 list 1)
375 (frob fop-list-2 18 list 2)
376 (frob fop-list-3 19 list 3)
377 (frob fop-list-4 20 list 4)
378 (frob fop-list-5 21 list 5)
379 (frob fop-list-6 22 list 6)
380 (frob fop-list-7 23 list 7)
381 (frob fop-list-8 24 list 8)
383 (frob fop-list*-1 25 list* 2)
384 (frob fop-list*-2 26 list* 3)
385 (frob fop-list*-3 27 list* 4)
386 (frob fop-list*-4 28 list* 5)
387 (frob fop-list*-5 29 list* 6)
388 (frob fop-list*-6 30 list* 7)
389 (frob fop-list*-7 31 list* 8)
390 (frob fop-list*-8 32 list* 9))
392 ;;;; fops for loading arrays
394 (define-cloned-fops (fop-string 37) (fop-small-string 38)
395 (let* ((arg (clone-arg))
396 (res (make-string arg)))
397 (read-string-as-bytes *fasl-input-stream* res)
400 (define-cloned-fops (fop-vector 39) (fop-small-vector 40)
401 (let* ((size (clone-arg))
402 (res (make-array size)))
403 (declare (fixnum size))
404 (do ((n (1- size) (1- n)))
406 (setf (svref res n) (pop-stack)))
409 (define-fop (fop-array 83)
410 (let* ((rank (read-arg 4))
412 (length (length vec))
413 (res (make-array-header sb!vm:simple-array-widetag rank)))
414 (declare (simple-array vec)
415 (type (unsigned-byte 24) rank))
416 (set-array-header res vec length length 0
418 (dimensions () (cons (pop-stack) dimensions)))
419 ((zerop i) dimensions)
420 (declare (type index i)))
424 (define-fop (fop-single-float-vector 84)
425 (let* ((length (read-arg 4))
426 (result (make-array length :element-type 'single-float)))
427 (read-n-bytes *fasl-input-stream* result 0 (* length sb!vm:n-word-bytes))
430 (define-fop (fop-double-float-vector 85)
431 (let* ((length (read-arg 4))
432 (result (make-array length :element-type 'double-float)))
433 (read-n-bytes *fasl-input-stream* result 0 (* length sb!vm:n-word-bytes 2))
437 (define-fop (fop-long-float-vector 88)
438 (let* ((length (read-arg 4))
439 (result (make-array length :element-type 'long-float)))
440 (read-n-bytes *fasl-input-stream*
443 (* length sb!vm:n-word-bytes #!+x86 3 #!+sparc 4))
446 (define-fop (fop-complex-single-float-vector 86)
447 (let* ((length (read-arg 4))
448 (result (make-array length :element-type '(complex single-float))))
449 (read-n-bytes *fasl-input-stream* result 0 (* length sb!vm:n-word-bytes 2))
452 (define-fop (fop-complex-double-float-vector 87)
453 (let* ((length (read-arg 4))
454 (result (make-array length :element-type '(complex double-float))))
455 (read-n-bytes *fasl-input-stream*
458 (* length sb!vm:n-word-bytes 2 2))
462 (define-fop (fop-complex-long-float-vector 89)
463 (let* ((length (read-arg 4))
464 (result (make-array length :element-type '(complex long-float))))
465 (read-n-bytes *fasl-input-stream* result 0
466 (* length sb!vm:n-word-bytes #!+x86 3 #!+sparc 4 2))
470 ;;; *** NOT *** the FOP-INT-VECTOR as currently documented in rtguts.
471 ;;; Size must be a directly supported I-vector element size, with no
472 ;;; extra bits. This must be packed according to the local
473 ;;; byte-ordering, allowing us to directly read the bits.
474 (define-fop (fop-int-vector 43)
475 (prepare-for-fast-read-byte *fasl-input-stream*
476 (let* ((len (fast-read-u-integer 4))
477 (size (fast-read-byte))
479 (1 (make-array len :element-type 'bit))
480 (2 (make-array len :element-type '(unsigned-byte 2)))
481 (4 (make-array len :element-type '(unsigned-byte 4)))
482 (8 (make-array len :element-type '(unsigned-byte 8)))
483 (16 (make-array len :element-type '(unsigned-byte 16)))
484 (32 (make-array len :element-type '(unsigned-byte 32)))
485 (t (error "internal error: losing i-vector element size: ~S"
487 (declare (type index len))
488 (done-with-fast-read-byte)
489 (read-n-bytes *fasl-input-stream*
492 (ceiling (the index (* size len))
496 ;;; This is the same as FOP-INT-VECTOR, except this is for signed
498 (define-fop (fop-signed-int-vector 50)
499 (prepare-for-fast-read-byte *fasl-input-stream*
500 (let* ((len (fast-read-u-integer 4))
501 (size (fast-read-byte))
503 (8 (make-array len :element-type '(signed-byte 8)))
504 (16 (make-array len :element-type '(signed-byte 16)))
505 (30 (make-array len :element-type '(signed-byte 30)))
506 (32 (make-array len :element-type '(signed-byte 32)))
507 (t (error "internal error: losing si-vector element size: ~S"
509 (declare (type index len))
510 (done-with-fast-read-byte)
511 (read-n-bytes *fasl-input-stream*
514 (ceiling (the index (* (if (= size 30)
515 32 ; Adjust for (signed-byte 30)
516 size) len)) sb!vm:n-byte-bits))
519 (define-fop (fop-eval 53)
520 (let ((result (eval (pop-stack))))
521 ;; FIXME: CMU CL had this code here:
522 ;; (when *load-print*
526 ;; Unfortunately, this dependence on the *LOAD-PRINT* global
527 ;; variable is non-ANSI, so for now we've just punted printing in
531 (define-fop (fop-eval-for-effect 54 nil)
532 (let ((result (eval (pop-stack))))
533 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
534 (declare (ignore result))
535 #+nil (when *load-print*
540 (define-fop (fop-funcall 55)
541 (let ((arg (read-arg 1)))
543 (funcall (pop-stack))
544 (do ((args () (cons (pop-stack) args))
546 ((zerop n) (apply (pop-stack) args))
547 (declare (type index n))))))
549 (define-fop (fop-funcall-for-effect 56 nil)
550 (let ((arg (read-arg 1)))
552 (funcall (pop-stack))
553 (do ((args () (cons (pop-stack) args))
555 ((zerop n) (apply (pop-stack) args))
556 (declare (type index n))))))
558 ;;;; fops for fixing up circularities
560 (define-fop (fop-rplaca 200 nil)
561 (let ((obj (svref *current-fop-table* (read-arg 4)))
564 (setf (car (nthcdr idx obj)) val)))
566 (define-fop (fop-rplacd 201 nil)
567 (let ((obj (svref *current-fop-table* (read-arg 4)))
570 (setf (cdr (nthcdr idx obj)) val)))
572 (define-fop (fop-svset 202 nil)
573 (let* ((obi (read-arg 4))
574 (obj (svref *current-fop-table* obi))
577 (if (typep obj 'instance)
578 (setf (%instance-ref obj idx) val)
579 (setf (svref obj idx) val))))
581 (define-fop (fop-structset 204 nil)
582 (setf (%instance-ref (svref *current-fop-table* (read-arg 4))
586 (define-fop (fop-nthcdr 203 t)
587 (nthcdr (read-arg 4) (pop-stack)))
589 ;;;; fops for loading functions
591 ;;; (In CMU CL there was a FOP-CODE-FORMAT (47) which was
592 ;;; conventionally placed at the beginning of each fasl file to test
593 ;;; for compatibility between the fasl file and the CMU CL which
594 ;;; loaded it. In SBCL, this functionality has been replaced by
595 ;;; putting the implementation and version in required fields in the
596 ;;; fasl file header.)
598 (define-fop (fop-code 58 :nope)
599 (load-code (read-arg 4) (read-arg 4)))
601 (define-fop (fop-small-code 59 :nope)
602 (load-code (read-arg 1) (read-arg 2)))
604 (define-fop (fop-fdefinition 60)
605 (fdefinition-object (pop-stack) t))
607 (define-fop (fop-sanctify-for-execution 61)
608 (let ((component (pop-stack)))
609 (sb!vm:sanctify-for-execution component)
612 (define-fop (fop-fset 74 nil)
613 ;; Ordinary, not-for-cold-load code shouldn't need to mess with this
614 ;; at all, since it's only used as part of the conspiracy between
615 ;; the cross-compiler and GENESIS to statically link FDEFINITIONs
617 (warn "~@<FOP-FSET seen in ordinary load (not cold load) -- quite strange! ~
618 If you didn't do something strange to cause this, please report it as a ~
620 ;; Unlike CMU CL, we don't treat this as a no-op in ordinary code.
621 ;; If the user (or, more likely, developer) is trying to reload
622 ;; compiled-for-cold-load code into a warm SBCL, we'll do a warm
623 ;; assignment. (This is partly for abstract tidiness, since the warm
624 ;; assignment is the closest analogy to what happens at cold load,
625 ;; and partly because otherwise our compiled-for-cold-load code will
626 ;; fail, since in SBCL things like compiled-for-cold-load %DEFUN
627 ;; depend more strongly than in CMU CL on FOP-FSET actually doing
629 (let ((fn (pop-stack))
631 (setf (fdefinition name) fn)))
633 ;;; Modify a slot in a CONSTANTS object.
634 (define-cloned-fops (fop-alter-code 140 nil) (fop-byte-alter-code 141)
635 (let ((value (pop-stack))
637 (setf (code-header-ref code (clone-arg)) value)
640 (define-fop (fop-function-entry 142)
641 #+sb-xc-host ; since xc host doesn't know how to compile %PRIMITIVE
642 (error "FOP-FUNCTION-ENTRY can't be defined without %PRIMITIVE.")
644 (let ((type (pop-stack))
645 (arglist (pop-stack))
647 (code-object (pop-stack))
648 (offset (read-arg 4)))
649 (declare (type index offset))
650 (unless (zerop (logand offset sb!vm:lowtag-mask))
651 (error "internal error: unaligned function object, offset = #X~X"
653 (let ((fun (%primitive sb!c:compute-function code-object offset)))
654 (setf (%simple-fun-self fun) fun)
655 (setf (%simple-fun-next fun) (%code-entry-points code-object))
656 (setf (%code-entry-points code-object) fun)
657 (setf (%simple-fun-name fun) name)
658 (setf (%simple-fun-arglist fun) arglist)
659 (setf (%simple-fun-type fun) type)
660 ;; FIXME: See the comment about *LOAD-PRINT* in FOP-EVAL.
661 #+nil (when *load-print*
663 (format t "~S defined~%" fun))
666 ;;;; Some Dylan FOPs used to live here. By 1 November 1998 the code
667 ;;;; was sufficiently stale that the functions it called were no
668 ;;;; longer defined, so I (William Harold Newman) deleted it.
670 ;;;; In case someone in the future is trying to make sense of FOP layout,
671 ;;;; it might be worth recording that the Dylan FOPs were
672 ;;;; 100 FOP-DYLAN-SYMBOL-SAVE
673 ;;;; 101 FOP-SMALL-DYLAN-SYMBOL-SAVE
674 ;;;; 102 FOP-DYLAN-KEYWORD-SAVE
675 ;;;; 103 FOP-SMALL-DYLAN-KEYWORD-SAVE
676 ;;;; 104 FOP-DYLAN-VARINFO-VALUE
678 ;;;; assemblerish fops
680 (define-fop (fop-foreign-fixup 147)
681 (let* ((kind (pop-stack))
682 (code-object (pop-stack))
684 (sym (make-string len)))
685 (read-n-bytes *fasl-input-stream* sym 0 len)
686 (sb!vm:fixup-code-object code-object
688 (foreign-symbol-address-as-integer sym)
692 (define-fop (fop-assembler-code 144)
693 (error "cannot load assembler code except at cold load"))
695 (define-fop (fop-assembler-routine 145)
696 (error "cannot load assembler code except at cold load"))
698 (define-fop (fop-assembler-fixup 148)
699 (let ((routine (pop-stack))
701 (code-object (pop-stack)))
702 (multiple-value-bind (value found) (gethash routine *assembler-routines*)
704 (error "undefined assembler routine: ~S" routine))
705 (sb!vm:fixup-code-object code-object (read-arg 4) value kind))
708 (define-fop (fop-code-object-fixup 149)
709 (let ((kind (pop-stack))
710 (code-object (pop-stack)))
711 ;; Note: We don't have to worry about GC moving the code-object after
712 ;; the GET-LISP-OBJ-ADDRESS and before that value is deposited, because
713 ;; we can only use code-object fixups when code-objects don't move.
714 (sb!vm:fixup-code-object code-object (read-arg 4)
715 (get-lisp-obj-address code-object) kind)