;;; the descriptor for layout's layout (needed when making layouts)
(defvar *layout-layout*)
-;;; FIXME: This information should probably be pulled out of the
-;;; cross-compiler's tables at genesis time instead of inserted by
-;;; hand here as a bare numeric constant.
-(defconstant target-layout-length 18)
+(defconstant target-layout-length
+ (layout-length (find-layout 'layout)))
+
+(defun target-layout-index (slot-name)
+ ;; KLUDGE: this is a little bit sleazy, but the tricky thing is that
+ ;; structure slots don't have a terribly firm idea of their names.
+ ;; At least here if we change LAYOUT's package of definition, we
+ ;; only have to change one thing...
+ (let* ((name (find-symbol (symbol-name slot-name) "SB!KERNEL"))
+ (layout (find-layout 'layout))
+ (dd (layout-info layout))
+ (slots (dd-slots dd))
+ (dsd (find name slots :key #'dsd-name)))
+ (aver dsd)
+ (dsd-index dsd)))
+
+(defun cold-set-layout-slot (cold-layout slot-name value)
+ (write-wordindexed
+ cold-layout
+ (+ sb!vm:instance-slots-offset (target-layout-index slot-name))
+ value))
;;; Return a list of names created from the cold layout INHERITS data
;;; in X.
(defun make-cold-layout (name length inherits depthoid nuntagged)
(let ((result (allocate-boxed-object *dynamic*
;; KLUDGE: Why 1+? -- WHN 19990901
+ ;; header word? -- CSR 20051204
(1+ target-layout-length)
sb!vm:instance-pointer-lowtag)))
(write-memory result
;; Set slot 0 = the layout of the layout.
(write-wordindexed result sb!vm:instance-slots-offset *layout-layout*)
- ;; Set the immediately following slots = CLOS hash values.
+ ;; Set the CLOS hash value.
;;
;; Note: CMU CL didn't set these in genesis, but instead arranged
;; for them to be set at cold init time. That resulted in slightly
;; before using it. However, they didn't, so we have a slight
;; problem. We address it by generating the hash values using a
;; different algorithm than we use in ordinary operation.
- (dotimes (i sb!kernel:layout-clos-hash-length)
- (let (;; The expression here is pretty arbitrary, we just want
- ;; to make sure that it's not something which is (1)
- ;; evenly distributed and (2) not foreordained to arise in
- ;; the target Lisp's (RANDOM-LAYOUT-CLOS-HASH) sequence
- ;; and show up as the CLOS-HASH value of some other
- ;; LAYOUT.
- (hash-value
- (1+ (mod (logxor (logand (random-layout-clos-hash) 15253)
- (logandc2 (random-layout-clos-hash) 15253)
- 1)
- ;; (The MOD here is defensive programming
- ;; to make sure we never write an
- ;; out-of-range value even if some joker
- ;; sets LAYOUT-CLOS-HASH-MAX to other
- ;; than 2^n-1 at some time in the
- ;; future.)
- sb!kernel:layout-clos-hash-max))))
- (write-wordindexed result
- (+ i sb!vm:instance-slots-offset 1)
- (make-fixnum-descriptor hash-value))))
+ (let (;; The expression here is pretty arbitrary, we just want
+ ;; to make sure that it's not something which is (1)
+ ;; evenly distributed and (2) not foreordained to arise in
+ ;; the target Lisp's (RANDOM-LAYOUT-CLOS-HASH) sequence
+ ;; and show up as the CLOS-HASH value of some other
+ ;; LAYOUT.
+ (hash-value
+ (1+ (mod (logxor (logand (random-layout-clos-hash) 15253)
+ (logandc2 (random-layout-clos-hash) 15253)
+ 1)
+ (1- sb!kernel:layout-clos-hash-limit)))))
+ (cold-set-layout-slot result 'clos-hash
+ (make-fixnum-descriptor hash-value)))
;; Set other slot values.
- (let ((base (+ sb!vm:instance-slots-offset
- sb!kernel:layout-clos-hash-length
- 1)))
- ;; (Offset 0 is CLASS, "the class this is a layout for", which
- ;; is uninitialized at this point.)
- (write-wordindexed result (+ base 1) *nil-descriptor*) ; marked invalid
- (write-wordindexed result (+ base 2) inherits)
- (write-wordindexed result (+ base 3) depthoid)
- (write-wordindexed result (+ base 4) length)
- (write-wordindexed result (+ base 5) *nil-descriptor*) ; info
- (write-wordindexed result (+ base 6) *nil-descriptor*) ; pure
- (write-wordindexed result (+ base 7) nuntagged))
+ ;;
+ ;; leave CLASSOID uninitialized for now
+ (cold-set-layout-slot result 'invalid *nil-descriptor*)
+ (cold-set-layout-slot result 'inherits inherits)
+ (cold-set-layout-slot result 'depthoid depthoid)
+ (cold-set-layout-slot result 'length length)
+ (cold-set-layout-slot result 'info *nil-descriptor*)
+ (cold-set-layout-slot result 'pure *nil-descriptor*)
+ (cold-set-layout-slot result 'n-untagged-slots nuntagged)
+ (cold-set-layout-slot result 'for-std-class-p *nil-descriptor*)
(setf (gethash name *cold-layouts*)
(list result
;; We initially create the layout of LAYOUT itself with NIL as the LAYOUT and
;; #() as INHERITS,
(setq *layout-layout* *nil-descriptor*)
- (setq *layout-layout*
- (make-cold-layout 'layout
- (number-to-core target-layout-length)
- (vector-in-core)
- ;; FIXME: hard-coded LAYOUT-DEPTHOID of LAYOUT..
- (number-to-core 3)
- ;; no raw slots in LAYOUT:
- (number-to-core 0)))
- (write-wordindexed *layout-layout*
- sb!vm:instance-slots-offset
- *layout-layout*)
+ (let ((xlayout-layout (find-layout 'layout)))
+ (aver (= 0 (layout-n-untagged-slots xlayout-layout)))
+ (setq *layout-layout*
+ (make-cold-layout 'layout
+ (number-to-core target-layout-length)
+ (vector-in-core)
+ (number-to-core (layout-depthoid xlayout-layout))
+ (number-to-core 0)))
+ (write-wordindexed
+ *layout-layout* sb!vm:instance-slots-offset *layout-layout*)
;; Then we create the layouts that we'll need to make a correct INHERITS
;; vector for the layout of LAYOUT itself..
;; ..and return to backpatch the layout of LAYOUT.
(setf (fourth (gethash 'layout *cold-layouts*))
(listify-cold-inherits layout-inherits))
- (write-wordindexed *layout-layout*
- ;; FIXME: hardcoded offset into layout struct
- (+ sb!vm:instance-slots-offset
- layout-clos-hash-length
- 1
- 2)
- layout-inherits)))
+ (cold-set-layout-slot *layout-layout* 'inherits layout-inherits))))
\f
;;;; interning symbols in the cold image
*cl-package*
;; ordinary case
(let ((result (symbol-package symbol)))
+ (unless (package-ok-for-target-symbol-p result)
+ (bug "~A in bad package for target: ~A" symbol result))
(aver (package-ok-for-target-symbol-p result))
result))))
(layout (pop-stack))
(nuntagged
(descriptor-fixnum
- (read-wordindexed layout (+ sb!vm:instance-slots-offset 16))))
+ (read-wordindexed
+ layout
+ (+ sb!vm:instance-slots-offset
+ (target-layout-index 'n-untagged-slots)))))
(ntagged (- size nuntagged)))
(write-memory result (make-other-immediate-descriptor
size sb!vm:instance-header-widetag))
(format t " *~@[ ~A~]~%" line))
(format t " */~%"))
+(defun c-name (string &optional strip)
+ (delete #\+
+ (substitute-if #\_ (lambda (c) (member c '(#\- #\/ #\%)))
+ (remove-if (lambda (c) (position c strip))
+ string))))
+
+(defun c-symbol-name (symbol &optional strip)
+ (c-name (symbol-name symbol) strip))
+
(defun write-makefile-features ()
;; propagating *SHEBANG-FEATURES* into the Makefiles
- (dolist (shebang-feature-name (sort (mapcar #'symbol-name
+ (dolist (shebang-feature-name (sort (mapcar #'c-symbol-name
sb-cold:*shebang-features*)
#'string<))
- (format t
- "LISP_FEATURE_~A=1~%"
- (substitute #\_ #\- shebang-feature-name))))
+ (format t "LISP_FEATURE_~A=1~%" shebang-feature-name)))
(defun write-config-h ()
;; propagating *SHEBANG-FEATURES* into C-level #define's
- (dolist (shebang-feature-name (sort (mapcar #'symbol-name
+ (dolist (shebang-feature-name (sort (mapcar #'c-symbol-name
sb-cold:*shebang-features*)
#'string<))
- (format t
- "#define LISP_FEATURE_~A~%"
- (substitute #\_ #\- shebang-feature-name)))
+ (format t "#define LISP_FEATURE_~A~%" shebang-feature-name))
(terpri)
;; and miscellaneous constants
(format t "#define SBCL_CORE_VERSION_INTEGER ~D~%" sbcl-core-version-integer)
(defun write-constants-h ()
;; writing entire families of named constants
(let ((constants nil))
- (dolist (package-name '(;; Even in CMU CL, constants from VM
+ (dolist (package-name '( ;; Even in CMU CL, constants from VM
;; were automatically propagated
;; into the runtime.
"SB!VM"
(do-external-symbols (symbol (find-package package-name))
(when (constantp symbol)
(let ((name (symbol-name symbol)))
- (labels (;; shared machinery
+ (labels ( ;; shared machinery
(record (string priority)
(push (list string
priority
priority)))
;; machinery for new-style SBCL Lisp-to-C naming
(record-with-translated-name (priority)
- (record (substitute #\_ #\- name)
- priority))
+ (record (c-name name) priority))
(maybe-record-with-translated-name (suffixes priority)
(when (some (lambda (suffix)
(tailwise-equal name suffix))
sb!vm:n-lowtag-bits sb!vm:lowtag-mask
sb!vm:n-widetag-bits sb!vm:widetag-mask
sb!vm:n-fixnum-tag-bits sb!vm:fixnum-tag-mask))
- (push (list (substitute #\_ #\- (symbol-name c))
+ (push (list (c-symbol-name c)
-1 ; invent a new priority
(symbol-value c)
nil)
constants))
;; One more symbol that doesn't fit into the code above.
- (flet ((translate (name)
- (delete #\+ (substitute #\_ #\- name))))
- (let ((c 'sb!impl::+magic-hash-vector-value+))
- (push (list (translate (symbol-name c))
- 9
- (symbol-value c)
- nil)
- constants)))
-
+ (let ((c 'sb!impl::+magic-hash-vector-value+))
+ (push (list (c-symbol-name c)
+ 9
+ (symbol-value c)
+ nil)
+ constants))
(setf constants
(sort constants
(lambda (const1 const2)
;; literal-U syntax, since the assembler doesn't
;; support that syntax and some of the small
;; constants can be used in assembler files.
- (let (;; cutoff for treatment as a small code
+ (let ( ;; cutoff for treatment as a small code
(cutoff (expt 2 16)))
(cond ((minusp value)
(error "stub: negative values unsupported"))
;; interr.lisp) -- APD, 2002-03-05
(unless (eq nil (car current-error))
(format t "#define ~A ~D~%"
- (substitute #\_ #\- (symbol-name (car current-error)))
+ (c-symbol-name (car current-error))
i)))))
(terpri)
sb!vm::float-sticky-bits
sb!vm::float-rounding-mode))
(format t "#define ~A_POSITION ~A /* ~:*0x~X */~%"
- (substitute #\_ #\- (symbol-name symbol))
+ (c-symbol-name symbol)
(sb!xc:byte-position (symbol-value symbol)))
(format t "#define ~A_MASK 0x~X /* ~:*~A */~%"
- (substitute #\_ #\- (symbol-name symbol))
+ (c-symbol-name symbol)
(sb!xc:mask-field (symbol-value symbol) -1))))
(format t "#ifndef LANGUAGE_ASSEMBLY~2%")
(format t
"struct ~A {~%"
- (substitute #\_ #\-
- (string-downcase (string (sb!vm:primitive-object-name obj)))))
+ (c-name (string-downcase (string (sb!vm:primitive-object-name obj)))))
(when (sb!vm:primitive-object-widetag obj)
(format t " lispobj header;~%"))
(dolist (slot (sb!vm:primitive-object-slots obj))
(format t " ~A ~A~@[[1]~];~%"
(getf (sb!vm:slot-options slot) :c-type "lispobj")
- (substitute #\_ #\-
- (string-downcase (string (sb!vm:slot-name slot))))
+ (c-name (string-downcase (string (sb!vm:slot-name slot))))
(sb!vm:slot-rest-p slot)))
(format t "};~2%")
(format t "#else /* LANGUAGE_ASSEMBLY */~2%")
(when lowtag
(dolist (slot (sb!vm:primitive-object-slots obj))
(format t "#define ~A_~A_OFFSET ~D~%"
- (substitute #\_ #\- (string name))
- (substitute #\_ #\- (string (sb!vm:slot-name slot)))
+ (c-symbol-name name)
+ (c-symbol-name (sb!vm:slot-name slot))
(- (* (sb!vm:slot-offset slot) sb!vm:n-word-bytes) lowtag)))
(terpri)))
(format t "#endif /* LANGUAGE_ASSEMBLY */~2%"))
(defun write-structure-object (dd)
(flet ((cstring (designator)
- (substitute
- #\_ #\%
- (substitute #\_ #\- (string-downcase (string designator))))))
+ (c-name (string-downcase (string designator)))))
(format t "#ifndef LANGUAGE_ASSEMBLY~2%")
(format t "struct ~A {~%" (cstring (dd-name dd)))
(format t " lispobj header;~%")
;; FIXME: It would be nice to use longer names than NIL and
;; (particularly) T in #define statements.
(format t "#define ~A LISPOBJ(0x~X)~%"
- (substitute #\_ #\-
- (remove-if (lambda (char)
- (member char '(#\% #\* #\. #\!)))
- (symbol-name symbol)))
+ ;; FIXME: It would be nice not to need to strip anything
+ ;; that doesn't get stripped always by C-SYMBOL-NAME.
+ (c-symbol-name symbol "%*.!")
(if *static* ; if we ran GENESIS
;; We actually ran GENESIS, use the real value.
(descriptor-bits (cold-intern symbol))
(with-open-file (*standard-output* fn
:if-exists :supersede :direction :output)
(write-boilerplate)
- (let ((n (substitute #\_ #\- (string-upcase ,name))))
+ (let ((n (c-name (string-upcase ,name))))
(format
t
"#ifndef SBCL_GENESIS_~A~%#define SBCL_GENESIS_~A 1~%"
projects / sbcl.git / blobdiff