;;;; As explained by Rob MacLachlan on the CMU CL mailing list Wed, 06
;;;; Jan 1999 11:05:02 -0500, this cold load generator more or less
;;;; fakes up static function linking. I.e. it makes sure that all the
-;;;; functions in the fasl files it reads are bound to the
+;;;; DEFUN-defined functions in the fasl files it reads are bound to the
;;;; corresponding symbols before execution starts. It doesn't do
;;;; anything to initialize variable values; instead it just arranges
;;;; for !COLD-INIT to be called at cold load time. !COLD-INIT is
;;;; responsible for explicitly initializing anything which has to be
;;;; initialized early before it transfers control to the ordinary
;;;; top-level forms.
+;;;;
+;;;; (In CMU CL, and in SBCL as of 0.6.9 anyway, functions not defined
+;;;; by DEFUN aren't set up specially by GENESIS. In particular,
+;;;; structure slot accessors are not set up. Slot accessors are
+;;;; available at cold init time because they're usually compiled
+;;;; inline. They're not available as out-of-line functions until the
+;;;; toplevel forms installing them have run.)
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
;;;
;;; 0: inherited from CMU CL
;;; 1: rearranged static symbols for sbcl-0.6.8
-;;; 2: eliminated non-ANSI %DEFCONSTANT/%%DEFCONSTANT support
+;;; 2: eliminated non-ANSI %DEFCONSTANT/%%DEFCONSTANT support,
+;;; deleted a slot from DEBUG-SOURCE structure
(defconstant sbcl-core-version-integer 2)
(defun round-up (number size)
;;; a GENESIS-time representation of a memory space (e.g. read-only space,
;;; dynamic space, or static space)
-(defstruct (gspace (:constructor %make-gspace))
+(defstruct (gspace (:constructor %make-gspace)
+ (:copier nil))
;; name and identifier for this GSPACE
(name (required-argument) :type symbol :read-only t)
(identifier (required-argument) :type fixnum :read-only t)
(defstruct (descriptor
(:constructor make-descriptor
- (high low &optional gspace word-offset)))
+ (high low &optional gspace word-offset))
+ (:copier nil))
;; the GSPACE that this descriptor is allocated in, or NIL if not set yet.
(gspace nil :type (or gspace null))
;; the offset in words from the start of GSPACE, or NIL if not set yet
;;; comparing the byte order of *BACKEND* to the byte order of
;;; *NATIVE-BACKEND*, a concept which doesn't exist in SBCL. Instead,
;;; in SBCL byte order swapping would need to be explicitly requested
-;;; with a keyword argument to GENESIS.
+;;; with a &KEY argument to GENESIS.
;;;
;;; I'm not sure whether this is a problem or not, and I don't have a
;;; machine with different byte order to test to find out for sure.
(defun maybe-byte-swap (word)
(declare (type (unsigned-byte 32) word))
- (assert (= sb!vm:word-bits 32))
- (assert (= sb!vm:byte-bits 8))
+ (aver (= sb!vm:word-bits 32))
+ (aver (= sb!vm:byte-bits 8))
(if (not *genesis-byte-order-swap-p*)
word
(logior (ash (ldb (byte 8 0) word) 24)
(defun maybe-byte-swap-short (short)
(declare (type (unsigned-byte 16) short))
- (assert (= sb!vm:word-bits 32))
- (assert (= sb!vm:byte-bits 8))
+ (aver (= sb!vm:word-bits 32))
+ (aver (= sb!vm:byte-bits 8))
(if (not *genesis-byte-order-swap-p*)
short
(logior (ash (ldb (byte 8 0) short) 8)
(ldb (byte 8 8) short))))
-;;; like SAP-REF-32, except that instead of a SAP we use a byte vector
-(defun byte-vector-ref-32 (byte-vector byte-index)
- (assert (= sb!vm:word-bits 32))
- (assert (= sb!vm:byte-bits 8))
+;;; BYTE-VECTOR-REF-32 and friends. These are like SAP-REF-n, except
+;;; that instead of a SAP we use a byte vector
+(macrolet ((make-byte-vector-ref-n
+ (n)
+ (let* ((name (intern (format nil "BYTE-VECTOR-REF-~A" n)))
+ (number-octets (/ n 8))
+ (ash-list
+ (loop for i from 0 to (1- number-octets)
+ collect `(ash (aref byte-vector (+ byte-index ,i))
+ ,(* i 8))))
+ (setf-list
+ (loop for i from 0 to (1- number-octets)
+ append
+ `((aref byte-vector (+ byte-index ,i))
+ (ldb (byte 8 ,(* i 8)) new-value)))))
+ `(progn
+ (defun ,name (byte-vector byte-index)
+ (aver (= sb!vm:word-bits 32))
+ (aver (= sb!vm:byte-bits 8))
(ecase sb!c:*backend-byte-order*
(:little-endian
- (logior (ash (aref byte-vector (+ byte-index 0)) 0)
- (ash (aref byte-vector (+ byte-index 1)) 8)
- (ash (aref byte-vector (+ byte-index 2)) 16)
- (ash (aref byte-vector (+ byte-index 3)) 24)))
+ (logior ,@ash-list))
(:big-endian
(error "stub: no big-endian ports of SBCL (yet?)"))))
-(defun (setf byte-vector-ref-32) (new-value byte-vector byte-index)
- (assert (= sb!vm:word-bits 32))
- (assert (= sb!vm:byte-bits 8))
+ (defun (setf ,name) (new-value byte-vector byte-index)
+ (aver (= sb!vm:word-bits 32))
+ (aver (= sb!vm:byte-bits 8))
(ecase sb!c:*backend-byte-order*
(:little-endian
- (setf (aref byte-vector (+ byte-index 0)) (ldb (byte 8 0) new-value)
- (aref byte-vector (+ byte-index 1)) (ldb (byte 8 8) new-value)
- (aref byte-vector (+ byte-index 2)) (ldb (byte 8 16) new-value)
- (aref byte-vector (+ byte-index 3)) (ldb (byte 8 24) new-value)))
+ (setf ,@setf-list))
(:big-endian
- (error "stub: no big-endian ports of SBCL (yet?)")))
- new-value)
+ (error "stub: no big-endian ports of SBCL (yet?)"))))))))
+ (make-byte-vector-ref-n 8)
+ (make-byte-vector-ref-n 16)
+ (make-byte-vector-ref-n 32))
(declaim (ftype (function (descriptor sb!vm:word) descriptor) read-wordindexed))
(defun read-wordindexed (address index)
\f
;;;; symbol magic
-;;; FIXME: This should be a keyword argument of ALLOCATE-SYMBOL.
+;;; FIXME: This should be a &KEY argument of ALLOCATE-SYMBOL.
(defvar *cold-symbol-allocation-gspace* nil)
;;; Allocate (and initialize) a symbol.
(setf (gethash name *cold-foreign-symbol-table*) value))))))
(values)))
+;;; FIXME: the relation between #'lookup-foreign-symbol and
+;;; #'lookup-maybe-prefix-foreign-symbol seems more than slightly
+;;; illdefined
+
(defun lookup-foreign-symbol (name)
- #!+x86
+ #!+(or alpha x86)
(let ((prefixes
#!+linux #(;; FIXME: How many of these are actually
;; needed? The first four are taken from rather
*cold-foreign-symbol-table*)
(format *error-output* "~&The prefix table is: ~S~%" prefixes)
(error "The foreign symbol ~S is undefined." name))))
- #!-x86 (error "non-x86 unsupported in SBCL (but see old CMU CL code)"))
+ #!-(or x86 alpha) (error "non-x86/alpha unsupported in SBCL (but see old CMU CL code)"))
(defvar *cold-assembler-routines*)
(gspace-byte-address (gspace-byte-address
(descriptor-gspace code-object))))
(ecase sb!c:*backend-fasl-file-implementation*
- ;; Classic CMU CL supported these, and I haven't gone out of my way
- ;; to break them, but I have no way of testing them.. -- WHN 19990817
- #|
- (#.sb!c:pmax-fasl-file-implementation
- (ecase kind
- (:jump
- (assert (zerop (ash value -28)))
- (setf (ldb (byte 26 0) (sap-ref-32 sap 0))
- (ash value -2)))
- (:lui
- (setf (sap-ref-16 sap 0)
- (+ (ash value -16)
- (if (logbitp 15 value) 1 0))))
- (:addi
- (setf (sap-ref-16 sap 0)
- (ldb (byte 16 0) value)))))
- (#.sb!c:sparc-fasl-file-implementation
- (let ((inst (maybe-byte-swap (sap-ref-32 sap 0))))
+ ;; See CMUCL source for other formerly-supported architectures
+ ;; (and note that you have to rewrite them to use vector-ref unstead
+ ;; of sap-ref)
+ (:alpha
(ecase kind
- (:call
- (error "Can't deal with call fixups yet."))
- (:sethi
- (setf inst
- (dpb (ldb (byte 22 10) value)
- (byte 22 0)
- inst)))
- (:add
- (setf inst
- (dpb (ldb (byte 10 0) value)
- (byte 10 0)
- inst))))
- (setf (sap-ref-32 sap 0)
- (maybe-byte-swap inst))))
- ((#.sb!c:rt-fasl-file-implementation
- #.sb!c:rt-afpa-fasl-file-implementation)
- (ecase kind
- (:cal
- (setf (sap-ref-16 sap 2)
- (maybe-byte-swap-short
- (ldb (byte 16 0) value))))
- (:cau
- (let ((high (ldb (byte 16 16) value)))
- (setf (sap-ref-16 sap 2)
- (maybe-byte-swap-short
- (if (logbitp 15 value) (1+ high) high)))))
- (:ba
- (unless (zerop (ash value -24))
- (warn "#X~8,'0X out of range for branch-absolute." value))
- (let ((inst (maybe-byte-swap-short (sap-ref-16 sap 0))))
+ (:jmp-hint
+ (assert (zerop (ldb (byte 2 0) value)))
+ #+nil ;; was commented out in cmucl source too. Don't know what
+ ;; it does -dan 2001.05.03
(setf (sap-ref-16 sap 0)
- (maybe-byte-swap-short
- (dpb (ldb (byte 8 16) value)
- (byte 8 0)
- inst))))
- (setf (sap-ref-16 sap 2)
- (maybe-byte-swap-short (ldb (byte 16 0) value))))))
- |#
+ (logior (sap-ref-16 sap 0) (ldb (byte 14 0) (ash value -2)))))
+ (:bits-63-48
+ (let* ((value (if (logbitp 15 value) (+ value (ash 1 16)) value))
+ (value (if (logbitp 31 value) (+ value (ash 1 32)) value))
+ (value (if (logbitp 47 value) (+ value (ash 1 48)) value)))
+ (setf (byte-vector-ref-8 gspace-bytes gspace-byte-offset)
+ (ldb (byte 8 48) value)
+ (byte-vector-ref-8 gspace-bytes (1+ gspace-byte-offset))
+ (ldb (byte 8 56) value))))
+ (:bits-47-32
+ (let* ((value (if (logbitp 15 value) (+ value (ash 1 16)) value))
+ (value (if (logbitp 31 value) (+ value (ash 1 32)) value)))
+ (setf (byte-vector-ref-8 gspace-bytes gspace-byte-offset)
+ (ldb (byte 8 32) value)
+ (byte-vector-ref-8 gspace-bytes (1+ gspace-byte-offset))
+ (ldb (byte 8 40) value))))
+ (:ldah
+ (let ((value (if (logbitp 15 value) (+ value (ash 1 16)) value)))
+ (setf (byte-vector-ref-8 gspace-bytes gspace-byte-offset)
+ (ldb (byte 8 16) value)
+ (byte-vector-ref-8 gspace-bytes (1+ gspace-byte-offset))
+ (ldb (byte 8 24) value))))
+ (:lda
+ (setf (byte-vector-ref-8 gspace-bytes gspace-byte-offset)
+ (ldb (byte 8 0) value)
+ (byte-vector-ref-8 gspace-bytes (1+ gspace-byte-offset))
+ (ldb (byte 8 8) value)))))
(:x86
(let* ((un-fixed-up (byte-vector-ref-32 gspace-bytes
gspace-byte-offset))
(code-object-start-addr (logandc2 (descriptor-bits code-object)
sb!vm:lowtag-mask)))
- (assert (= code-object-start-addr
- (+ gspace-byte-address
- (descriptor-byte-offset code-object))))
+ (assert (= code-object-start-addr
+ (+ gspace-byte-address
+ (descriptor-byte-offset code-object))))
(ecase kind
(:absolute
(let ((fixed-up (+ value un-fixed-up)))
(note-load-time-code-fixup code-object
after-header
value
- kind))))))
- ;; CMU CL supported these, and I haven't gone out of my way to break
- ;; them, but I have no way of testing them.. -- WHN 19990817
- #|
- (#.sb!c:hppa-fasl-file-implementation
- (let ((inst (maybe-byte-swap (sap-ref-32 sap 0))))
- (setf (sap-ref-32 sap 0)
- (maybe-byte-swap
- (ecase kind
- (:load
- (logior (ash (ldb (byte 11 0) value) 1)
- (logand inst #xffffc000)))
- (:load-short
- (let ((low-bits (ldb (byte 11 0) value)))
- (assert (<= 0 low-bits (1- (ash 1 4))))
- (logior (ash low-bits 17)
- (logand inst #xffe0ffff))))
- (:hi
- (logior (ash (ldb (byte 5 13) value) 16)
- (ash (ldb (byte 2 18) value) 14)
- (ash (ldb (byte 2 11) value) 12)
- (ash (ldb (byte 11 20) value) 1)
- (ldb (byte 1 31) value)
- (logand inst #xffe00000)))
- (:branch
- (let ((bits (ldb (byte 9 2) value)))
- (assert (zerop (ldb (byte 2 0) value)))
- (logior (ash bits 3)
- (logand inst #xffe0e002)))))))))
- (#.sb!c:alpha-fasl-file-implementation
- (ecase kind
- (:jmp-hint
- (assert (zerop (ldb (byte 2 0) value)))
- #+nil
- (setf (sap-ref-16 sap 0)
- (logior (sap-ref-16 sap 0) (ldb (byte 14 0) (ash value -2)))))
- (:bits-63-48
- (let* ((value (if (logbitp 15 value) (+ value (ash 1 16)) value))
- (value (if (logbitp 31 value) (+ value (ash 1 32)) value))
- (value (if (logbitp 47 value) (+ value (ash 1 48)) value)))
- (setf (sap-ref-8 sap 0) (ldb (byte 8 48) value))
- (setf (sap-ref-8 sap 1) (ldb (byte 8 56) value))))
- (:bits-47-32
- (let* ((value (if (logbitp 15 value) (+ value (ash 1 16)) value))
- (value (if (logbitp 31 value) (+ value (ash 1 32)) value)))
- (setf (sap-ref-8 sap 0) (ldb (byte 8 32) value))
- (setf (sap-ref-8 sap 1) (ldb (byte 8 40) value))))
- (:ldah
- (let ((value (if (logbitp 15 value) (+ value (ash 1 16)) value)))
- (setf (sap-ref-8 sap 0) (ldb (byte 8 16) value))
- (setf (sap-ref-8 sap 1) (ldb (byte 8 24) value))))
- (:lda
- (setf (sap-ref-8 sap 0) (ldb (byte 8 0) value))
- (setf (sap-ref-8 sap 1) (ldb (byte 8 8) value)))))
- (#.sb!c:sgi-fasl-file-implementation
- (ecase kind
- (:jump
- (assert (zerop (ash value -28)))
- (setf (ldb (byte 26 0) (sap-ref-32 sap 0))
- (ash value -2)))
- (:lui
- (setf (sap-ref-16 sap 2)
- (+ (ash value -16)
- (if (logbitp 15 value) 1 0))))
- (:addi
- (setf (sap-ref-16 sap 2)
- (ldb (byte 16 0) value)))))
- |#
- ))
+ kind)))))) ))
(values))
(defun resolve-assembler-fixups ()
(defvar *normal-fop-functions*)
-;;; This is like DEFINE-FOP which defines fops for warm load, but unlike
-;;; DEFINE-FOP, this version
-;;; (1) looks up the code for this name (created by a previous DEFINE-FOP)
-;;; instead of creating a code, and
-;;; (2) stores its definition in the *COLD-FOP-FUNCTIONS* vector, instead
-;;; of storing in the *FOP-FUNCTIONS* vector.
+;;; Cause a fop to have a special definition for cold load.
+;;;
+;;; This is similar to DEFINE-FOP, but unlike DEFINE-FOP, this version
+;;; (1) looks up the code for this name (created by a previous
+;; DEFINE-FOP) instead of creating a code, and
+;;; (2) stores its definition in the *COLD-FOP-FUNCTIONS* vector,
+;;; instead of storing in the *FOP-FUNCTIONS* vector.
(defmacro define-cold-fop ((name &optional (pushp t)) &rest forms)
- (check-type pushp (member nil t :nope))
+ (aver (member pushp '(nil t :nope)))
(let ((code (get name 'fop-code))
- (fname (concat-pnames 'cold- name)))
+ (fname (symbolicate "COLD-" name)))
(unless code
(error "~S is not a defined FOP." name))
`(progn
(setf (svref *cold-fop-functions* ,code) #',fname))))
(defmacro clone-cold-fop ((name &optional (pushp t)) (small-name) &rest forms)
- (check-type pushp (member nil t :nope))
+ (aver (member pushp '(nil t :nope)))
`(progn
(macrolet ((clone-arg () '(read-arg 4)))
(define-cold-fop (,name ,pushp) ,@forms))
`(define-cold-fop (,name)
(error "The fop ~S is not supported in cold load." ',name)))
-;;; COLD-LOAD loads stuff into the core image being built by calling FASLOAD
-;;; with the fop function table rebound to a table of cold loading functions.
+;;; COLD-LOAD loads stuff into the core image being built by calling
+;;; LOAD-AS-FASL with the fop function table rebound to a table of cold
+;;; loading functions.
(defun cold-load (filename)
#!+sb-doc
"Load the file named by FILENAME into the cold load image being built."
(string filename)
(pathname (namestring filename)))))
(with-open-file (s filename :element-type '(unsigned-byte 8))
- (fasload s nil nil))))
+ (load-as-fasl s nil nil))))
\f
;;;; miscellaneous cold fops
(declare (type index old-length))
(declare (type fixnum old-depthoid))
(declare (type list old-inherits-list))
- (assert (eq name old-name))
+ (aver (eq name old-name))
(let ((length (descriptor-fixnum length-des))
(inherits-list (listify-cold-inherits cold-inherits))
(depthoid (descriptor-fixnum depthoid-des)))
(write-long *data-page*)
(multiple-value-bind (floor rem)
(floor (gspace-byte-address gspace) sb!c:*backend-page-size*)
- ;; FIXME: Define an INSIST macro which does like ASSERT, but
- ;; less expensively (ERROR, not CERROR), and which reports
- ;; "internal error" on failure. Use it here and elsewhere in the
- ;; system.
- (assert (zerop rem))
+ (aver (zerop rem))
(write-long floor))
(write-long pages)
;; much. (And the old CMU CL code is still useful for making
;; sure that the appropriate keywords and internal symbols end
;; up interned in the target Lisp, which is good, e.g. in order
- ;; to make keyword arguments work right and in order to make
+ ;; to make &KEY arguments work right and in order to make
;; BACKTRACEs into target Lisp system code be legible.)
(dolist (exported-name
(sb-cold:read-from-file "common-lisp-exports.lisp-expr"))
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