X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fgeneric%2Fgenesis.lisp;h=9dec38505916acb4c50bc37e7add0847223beb05;hb=b3e3fbe7d381147fccc8a3027cb6fae923e57d13;hp=259c781d37ddb0afc376d70a16cd7d7de388bb02;hpb=77360ee4a1f94c41b807be7ad0e8687199fceef1;p=sbcl.git diff --git a/src/compiler/generic/genesis.lisp b/src/compiler/generic/genesis.lisp index 259c781..9dec385 100644 --- a/src/compiler/generic/genesis.lisp +++ b/src/compiler/generic/genesis.lisp @@ -6,13 +6,20 @@ ;;;; 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. +;;;; 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. @@ -23,14 +30,14 @@ ;;;; provided with absolutely no warranty. See the COPYING and CREDITS ;;;; files for more information. -(in-package "SB!IMPL") +(in-package "SB!FASL") ;;; a magic number used to identify our core files (defconstant core-magic - (logior (ash (char-code #\S) 24) - (ash (char-code #\B) 16) - (ash (char-code #\C) 8) - (char-code #\L))) + (logior (ash (sb!xc:char-code #\S) 24) + (ash (sb!xc:char-code #\B) 16) + (ash (sb!xc:char-code #\C) 8) + (sb!xc:char-code #\L))) ;;; the current version of SBCL core files ;;; @@ -40,29 +47,187 @@ ;;; way to do this in high level data like this (as opposed to e.g. in ;;; IP packets), and in fact the CMU CL version number never ended up ;;; being incremented past 0. A better approach might be to use a -;;; string which is set from CVS data. +;;; string which is set from CVS data. (Though now as of sbcl-0.7.8 or +;;; so, we have another problem that the core incompatibility +;;; detection mechanisms are on such a hair trigger -- with even +;;; different builds from the same sources being considered +;;; incompatible -- that any coarser-grained versioning mechanisms +;;; like this are largely irrelevant as long as the hair-triggering +;;; persists.) ;;; ;;; 0: inherited from CMU CL ;;; 1: rearranged static symbols for sbcl-0.6.8 ;;; 2: eliminated non-ANSI %DEFCONSTANT/%%DEFCONSTANT support, ;;; deleted a slot from DEBUG-SOURCE structure -(defconstant sbcl-core-version-integer 2) +;;; 3: added build ID to cores to discourage sbcl/.core mismatch +(defconstant sbcl-core-version-integer 3) (defun round-up (number size) #!+sb-doc "Round NUMBER up to be an integral multiple of SIZE." (* size (ceiling number size))) +;;;; implementing the concept of "vector" in (almost) portable +;;;; Common Lisp +;;;; +;;;; "If you only need to do such simple things, it doesn't really +;;;; matter which language you use." -- _ANSI Common Lisp_, p. 1, Paul +;;;; Graham (evidently not considering the abstraction "vector" to be +;;;; such a simple thing:-) + +(eval-when (:compile-toplevel :load-toplevel :execute) + (defconstant +smallvec-length+ + (expt 2 16))) + +;;; an element of a BIGVEC -- a vector small enough that we have +;;; a good chance of it being portable to other Common Lisps +(deftype smallvec () + `(simple-array (unsigned-byte 8) (,+smallvec-length+))) + +(defun make-smallvec () + (make-array +smallvec-length+ :element-type '(unsigned-byte 8))) + +;;; a big vector, implemented as a vector of SMALLVECs +;;; +;;; KLUDGE: This implementation seems portable enough for our +;;; purposes, since realistically every modern implementation is +;;; likely to support vectors of at least 2^16 elements. But if you're +;;; masochistic enough to read this far into the contortions imposed +;;; on us by ANSI and the Lisp community, for daring to use the +;;; abstraction of a large linearly addressable memory space, which is +;;; after all only directly supported by the underlying hardware of at +;;; least 99% of the general-purpose computers in use today, then you +;;; may be titillated to hear that in fact this code isn't really +;;; portable, because as of sbcl-0.7.4 we need somewhat more than +;;; 16Mbytes to represent a core, and ANSI only guarantees that +;;; ARRAY-DIMENSION-LIMIT is not less than 1024. -- WHN 2002-06-13 +(defstruct bigvec + (outer-vector (vector (make-smallvec)) :type (vector smallvec))) + +;;; analogous to SVREF, but into a BIGVEC +(defun bvref (bigvec index) + (multiple-value-bind (outer-index inner-index) + (floor index +smallvec-length+) + (aref (the smallvec + (svref (bigvec-outer-vector bigvec) outer-index)) + inner-index))) +(defun (setf bvref) (new-value bigvec index) + (multiple-value-bind (outer-index inner-index) + (floor index +smallvec-length+) + (setf (aref (the smallvec + (svref (bigvec-outer-vector bigvec) outer-index)) + inner-index) + new-value))) + +;;; analogous to LENGTH, but for a BIGVEC +;;; +;;; the length of BIGVEC, measured in the number of BVREFable bytes it +;;; can hold +(defun bvlength (bigvec) + (* (length (bigvec-outer-vector bigvec)) + +smallvec-length+)) + +;;; analogous to WRITE-SEQUENCE, but for a BIGVEC +(defun write-bigvec-as-sequence (bigvec stream &key (start 0) end) + (loop for i of-type index from start below (or end (bvlength bigvec)) do + (write-byte (bvref bigvec i) + stream))) + +;;; analogous to READ-SEQUENCE-OR-DIE, but for a BIGVEC +(defun read-bigvec-as-sequence-or-die (bigvec stream &key (start 0) end) + (loop for i of-type index from start below (or end (bvlength bigvec)) do + (setf (bvref bigvec i) + (read-byte stream)))) + +;;; Grow BIGVEC (exponentially, so that large increases in size have +;;; asymptotic logarithmic cost per byte). +(defun expand-bigvec (bigvec) + (let* ((old-outer-vector (bigvec-outer-vector bigvec)) + (length-old-outer-vector (length old-outer-vector)) + (new-outer-vector (make-array (* 2 length-old-outer-vector)))) + (dotimes (i length-old-outer-vector) + (setf (svref new-outer-vector i) + (svref old-outer-vector i))) + (loop for i from length-old-outer-vector below (length new-outer-vector) do + (setf (svref new-outer-vector i) + (make-smallvec))) + (setf (bigvec-outer-vector bigvec) + new-outer-vector)) + bigvec) + +;;;; looking up bytes and multi-byte values in a BIGVEC (considering +;;;; it as an image of machine memory on the cross-compilation target) + +;;; BVREF-32 and friends. These are like SAP-REF-n, except that +;;; instead of a SAP we use a BIGVEC. +(macrolet ((make-bvref-n + (n) + (let* ((name (intern (format nil "BVREF-~A" n))) + (number-octets (/ n 8)) + (ash-list-le + (loop for i from 0 to (1- number-octets) + collect `(ash (bvref bigvec (+ byte-index ,i)) + ,(* i 8)))) + (ash-list-be + (loop for i from 0 to (1- number-octets) + collect `(ash (bvref bigvec + (+ byte-index + ,(- number-octets 1 i))) + ,(* i 8)))) + (setf-list-le + (loop for i from 0 to (1- number-octets) + append + `((bvref bigvec (+ byte-index ,i)) + (ldb (byte 8 ,(* i 8)) new-value)))) + (setf-list-be + (loop for i from 0 to (1- number-octets) + append + `((bvref bigvec (+ byte-index ,i)) + (ldb (byte 8 ,(- n 8 (* i 8))) new-value))))) + `(progn + (defun ,name (bigvec byte-index) + (logior ,@(ecase sb!c:*backend-byte-order* + (:little-endian ash-list-le) + (:big-endian ash-list-be)))) + (defun (setf ,name) (new-value bigvec byte-index) + (setf ,@(ecase sb!c:*backend-byte-order* + (:little-endian setf-list-le) + (:big-endian setf-list-be)))))))) + (make-bvref-n 8) + (make-bvref-n 16) + (make-bvref-n 32) + (make-bvref-n 64)) + +;; lispobj-sized word, whatever that may be +;; hopefully nobody ever wants a 128-bit SBCL... +#!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or)) +(progn +(defun bvref-word (bytes index) + (bvref-64 bytes index)) +(defun (setf bvref-word) (new-val bytes index) + (setf (bvref-64 bytes index) new-val))) + +#!+#.(cl:if (cl:= 32 sb!vm:n-word-bits) '(and) '(or)) +(progn +(defun bvref-word (bytes index) + (bvref-32 bytes index)) +(defun (setf bvref-word) (new-val bytes index) + (setf (bvref-32 bytes index) new-val))) + + ;;;; representation of spaces in the core +;;; If there is more than one dynamic space in memory (i.e., if a +;;; copying GC is in use), then only the active dynamic space gets +;;; dumped to core. (defvar *dynamic*) -(defconstant dynamic-space-id 1) +(defconstant dynamic-core-space-id 1) (defvar *static*) -(defconstant static-space-id 2) +(defconstant static-core-space-id 2) (defvar *read-only*) -(defconstant read-only-space-id 3) +(defconstant read-only-core-space-id 3) (defconstant descriptor-low-bits 16 "the number of bits in the low half of the descriptor") @@ -70,22 +235,25 @@ "the alignment requirement for spaces in the target. Must be at least (ASH 1 DESCRIPTOR-LOW-BITS)") -;;; a GENESIS-time representation of a memory space (e.g. read-only space, -;;; dynamic space, or static space) -(defstruct (gspace (:constructor %make-gspace)) +;;; a GENESIS-time representation of a memory space (e.g. read-only +;;; space, dynamic space, or static space) +(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) + (name (missing-arg) :type symbol :read-only t) + (identifier (missing-arg) :type fixnum :read-only t) ;; the word address where the data will be loaded - (word-address (required-argument) :type unsigned-byte :read-only t) - ;; the data themselves. (Note that in CMU CL this was a pair - ;; of fields SAP and WORDS-ALLOCATED, but that wasn't very portable.) - (bytes (make-array target-space-alignment :element-type '(unsigned-byte 8)) - :type (simple-array (unsigned-byte 8) 1)) + (word-address (missing-arg) :type unsigned-byte :read-only t) + ;; the data themselves. (Note that in CMU CL this was a pair of + ;; fields SAP and WORDS-ALLOCATED, but that wasn't very portable.) + ;; (And then in SBCL this was a VECTOR, but turned out to be + ;; unportable too, since ANSI doesn't think that arrays longer than + ;; 1024 (!) should needed by portable CL code...) + (bytes (make-bigvec) :read-only t) ;; the index of the next unwritten word (i.e. chunk of - ;; SB!VM:WORD-BYTES bytes) in BYTES, or equivalently the number of + ;; SB!VM:N-WORD-BYTES bytes) in BYTES, or equivalently the number of ;; words actually written in BYTES. In order to convert to an actual - ;; index into BYTES, thus must be multiplied by SB!VM:WORD-BYTES. + ;; index into BYTES, thus must be multiplied by SB!VM:N-WORD-BYTES. (free-word-index 0)) (defun gspace-byte-address (gspace) @@ -98,102 +266,95 @@ (defun make-gspace (name identifier byte-address) (unless (zerop (rem byte-address target-space-alignment)) (error "The byte address #X~X is not aligned on a #X~X-byte boundary." - byte-address - target-space-alignment)) + byte-address + target-space-alignment)) (%make-gspace :name name - :identifier identifier - :word-address (ash byte-address (- sb!vm:word-shift)))) - -;;; KLUDGE: Doing it this way seems to partly replicate the -;;; functionality of Common Lisp adjustable arrays. Is there any way -;;; to do this stuff in one line of code by using standard Common Lisp -;;; stuff? -- WHN 19990816 -(defun expand-gspace-bytes (gspace) - (let* ((old-bytes (gspace-bytes gspace)) - (old-length (length old-bytes)) - (new-length (* 2 old-length)) - (new-bytes (make-array new-length :element-type '(unsigned-byte 8)))) - (replace new-bytes old-bytes :end1 old-length) - (setf (gspace-bytes gspace) - new-bytes)) - (values)) + :identifier identifier + :word-address (ash byte-address (- sb!vm:word-shift)))) ;;;; representation of descriptors (defstruct (descriptor - (:constructor make-descriptor - (high low &optional gspace word-offset))) + (:constructor make-descriptor + (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 - (word-offset nil :type (or (unsigned-byte #.sb!vm:word-bits) null)) - ;; the high and low halves of the descriptor KLUDGE: Judging from - ;; the comments in genesis.lisp of the CMU CL old-rt compiler, this - ;; split dates back from a very early version of genesis where - ;; 32-bit integers were represented as conses of two 16-bit - ;; integers. In any system with nice (UNSIGNED-BYTE 32) structure - ;; slots, like CMU CL >= 17 or any version of SBCL, there seems to - ;; be no reason to persist in this. -- WHN 19990917 - high low) + (word-offset nil :type (or sb!vm:word null)) + ;; the high and low halves of the descriptor + ;; + ;; KLUDGE: Judging from the comments in genesis.lisp of the CMU CL + ;; old-rt compiler, this split dates back from a very early version + ;; of genesis where 32-bit integers were represented as conses of + ;; two 16-bit integers. In any system with nice (UNSIGNED-BYTE 32) + ;; structure slots, like CMU CL >= 17 or any version of SBCL, there + ;; seems to be no reason to persist in this. -- WHN 19990917 + high + low) (def!method print-object ((des descriptor) stream) (let ((lowtag (descriptor-lowtag des))) (print-unreadable-object (des stream :type t) - (cond ((or (= lowtag sb!vm:even-fixnum-type) - (= lowtag sb!vm:odd-fixnum-type)) - (let ((unsigned (logior (ash (descriptor-high des) - (1+ (- descriptor-low-bits - sb!vm:lowtag-bits))) - (ash (descriptor-low des) - (- 1 sb!vm:lowtag-bits))))) - (format stream - "for fixnum: ~D" - (if (> unsigned #x1FFFFFFF) - (- unsigned #x40000000) - unsigned)))) - ((or (= lowtag sb!vm:other-immediate-0-type) - (= lowtag sb!vm:other-immediate-1-type)) - (format stream - "for other immediate: #X~X, type #b~8,'0B" - (ash (descriptor-bits des) (- sb!vm:type-bits)) - (logand (descriptor-low des) sb!vm:type-mask))) - (t - (format stream - "for pointer: #X~X, lowtag #b~3,'0B, ~A" - (logior (ash (descriptor-high des) descriptor-low-bits) - (logandc2 (descriptor-low des) sb!vm:lowtag-mask)) - lowtag - (let ((gspace (descriptor-gspace des))) - (if gspace - (gspace-name gspace) - "unknown")))))))) - -(defun allocate-descriptor (gspace length lowtag) - #!+sb-doc - "Return a descriptor for a block of LENGTH bytes out of GSPACE. The free - word index is boosted as necessary, and if additional memory is needed, we - grow the GSPACE. The descriptor returned is a pointer of type LOWTAG." - (let* ((bytes (round-up length (ash 1 sb!vm:lowtag-bits))) - (old-free-word-index (gspace-free-word-index gspace)) - (new-free-word-index (+ old-free-word-index - (ash bytes (- sb!vm:word-shift))))) + (cond ((or (= lowtag sb!vm:even-fixnum-lowtag) + (= lowtag sb!vm:odd-fixnum-lowtag)) + (let ((unsigned (logior (ash (descriptor-high des) + (1+ (- descriptor-low-bits + sb!vm:n-lowtag-bits))) + (ash (descriptor-low des) + (- 1 sb!vm:n-lowtag-bits))))) + (format stream + "for fixnum: ~W" + (if (> unsigned #x1FFFFFFF) + (- unsigned #x40000000) + unsigned)))) + ((or (= lowtag sb!vm:other-immediate-0-lowtag) + (= lowtag sb!vm:other-immediate-1-lowtag) + #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or)) + (= lowtag sb!vm:other-immediate-2-lowtag) + #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or)) + (= lowtag sb!vm:other-immediate-3-lowtag)) + (format stream + "for other immediate: #X~X, type #b~8,'0B" + (ash (descriptor-bits des) (- sb!vm:n-widetag-bits)) + (logand (descriptor-low des) sb!vm:widetag-mask))) + (t + (format stream + "for pointer: #X~X, lowtag #b~3,'0B, ~A" + (logior (ash (descriptor-high des) descriptor-low-bits) + (logandc2 (descriptor-low des) sb!vm:lowtag-mask)) + lowtag + (let ((gspace (descriptor-gspace des))) + (if gspace + (gspace-name gspace) + "unknown")))))))) + +;;; Return a descriptor for a block of LENGTH bytes out of GSPACE. The +;;; free word index is boosted as necessary, and if additional memory +;;; is needed, we grow the GSPACE. The descriptor returned is a +;;; pointer of type LOWTAG. +(defun allocate-cold-descriptor (gspace length lowtag) + (let* ((bytes (round-up length (ash 1 sb!vm:n-lowtag-bits))) + (old-free-word-index (gspace-free-word-index gspace)) + (new-free-word-index (+ old-free-word-index + (ash bytes (- sb!vm:word-shift))))) ;; Grow GSPACE as necessary until it's big enough to handle ;; NEW-FREE-WORD-INDEX. (do () - ((>= (length (gspace-bytes gspace)) - (* new-free-word-index sb!vm:word-bytes))) - (expand-gspace-bytes gspace)) + ((>= (bvlength (gspace-bytes gspace)) + (* new-free-word-index sb!vm:n-word-bytes))) + (expand-bigvec (gspace-bytes gspace))) ;; Now that GSPACE is big enough, we can meaningfully grab a chunk of it. (setf (gspace-free-word-index gspace) new-free-word-index) (let ((ptr (+ (gspace-word-address gspace) old-free-word-index))) (make-descriptor (ash ptr (- sb!vm:word-shift descriptor-low-bits)) - (logior (ash (logand ptr - (1- (ash 1 - (- descriptor-low-bits - sb!vm:word-shift)))) - sb!vm:word-shift) - lowtag) - gspace - old-free-word-index)))) + (logior (ash (logand ptr + (1- (ash 1 + (- descriptor-low-bits + sb!vm:word-shift)))) + sb!vm:word-shift) + lowtag) + gspace + old-free-word-index)))) (defun descriptor-lowtag (des) #!+sb-doc @@ -202,19 +363,29 @@ (defun descriptor-bits (des) (logior (ash (descriptor-high des) descriptor-low-bits) - (descriptor-low des))) + (descriptor-low des))) (defun descriptor-fixnum (des) (let ((bits (descriptor-bits des))) - (if (logbitp (1- sb!vm:word-bits) bits) - ;; KLUDGE: The (- SB!VM:WORD-BITS 2) term here looks right to - ;; me, and it works, but in CMU CL it was (1- SB!VM:WORD-BITS), - ;; and although that doesn't make sense for me, or work for me, - ;; it's hard to see how it could have been wrong, since CMU CL - ;; genesis worked. It would be nice to understand how this came - ;; to be.. -- WHN 19990901 - (logior (ash bits -2) (ash -1 (- sb!vm:word-bits 2))) - (ash bits -2)))) + (if (logbitp (1- sb!vm:n-word-bits) bits) + ;; KLUDGE: The (- SB!VM:N-WORD-BITS 2) term here looks right to + ;; me, and it works, but in CMU CL it was (1- SB!VM:N-WORD-BITS), + ;; and although that doesn't make sense for me, or work for me, + ;; it's hard to see how it could have been wrong, since CMU CL + ;; genesis worked. It would be nice to understand how this came + ;; to be.. -- WHN 19990901 + (logior (ash bits (- 1 sb!vm:n-lowtag-bits)) + (ash -1 (1+ sb!vm:n-positive-fixnum-bits))) + (ash bits (- 1 sb!vm:n-lowtag-bits))))) + +(defun descriptor-word-sized-integer (des) + ;; Extract an (unsigned-byte 32), from either its fixnum or bignum + ;; representation. + (let ((lowtag (descriptor-lowtag des))) + (if (or (= lowtag sb!vm:even-fixnum-lowtag) + (= lowtag sb!vm:odd-fixnum-lowtag)) + (make-random-descriptor (descriptor-fixnum des)) + (read-wordindexed des 1)))) ;;; common idioms (defun descriptor-bytes (des) @@ -235,60 +406,61 @@ ;; code from CMU CL's DESCRIPTOR-SAP function. Some explanation ;; would be nice. -- WHN 19990817 (let ((lowtag (descriptor-lowtag des)) - (high (descriptor-high des)) - (low (descriptor-low des))) - (if (or (eql lowtag sb!vm:function-pointer-type) - (eql lowtag sb!vm:instance-pointer-type) - (eql lowtag sb!vm:list-pointer-type) - (eql lowtag sb!vm:other-pointer-type)) - (dolist (gspace (list *dynamic* *static* *read-only*) - (error "couldn't find a GSPACE for ~S" des)) - ;; This code relies on the fact that GSPACEs are aligned such that - ;; the descriptor-low-bits low bits are zero. - (when (and (>= high (ash (gspace-word-address gspace) - (- sb!vm:word-shift descriptor-low-bits))) - (<= high (ash (+ (gspace-word-address gspace) - (gspace-free-word-index gspace)) - (- sb!vm:word-shift descriptor-low-bits)))) - (setf (descriptor-gspace des) gspace) - (setf (descriptor-word-offset des) - (+ (ash (- high (ash (gspace-word-address gspace) - (- sb!vm:word-shift - descriptor-low-bits))) - (- descriptor-low-bits sb!vm:word-shift)) - (ash (logandc2 low sb!vm:lowtag-mask) - (- sb!vm:word-shift)))) - (return gspace))) - (error "don't even know how to look for a GSPACE for ~S" des))))) + (high (descriptor-high des)) + (low (descriptor-low des))) + (if (or (eql lowtag sb!vm:fun-pointer-lowtag) + (eql lowtag sb!vm:instance-pointer-lowtag) + (eql lowtag sb!vm:list-pointer-lowtag) + (eql lowtag sb!vm:other-pointer-lowtag)) + (dolist (gspace (list *dynamic* *static* *read-only*) + (error "couldn't find a GSPACE for ~S" des)) + ;; This code relies on the fact that GSPACEs are aligned + ;; such that the descriptor-low-bits low bits are zero. + (when (and (>= high (ash (gspace-word-address gspace) + (- sb!vm:word-shift descriptor-low-bits))) + (<= high (ash (+ (gspace-word-address gspace) + (gspace-free-word-index gspace)) + (- sb!vm:word-shift descriptor-low-bits)))) + (setf (descriptor-gspace des) gspace) + (setf (descriptor-word-offset des) + (+ (ash (- high (ash (gspace-word-address gspace) + (- sb!vm:word-shift + descriptor-low-bits))) + (- descriptor-low-bits sb!vm:word-shift)) + (ash (logandc2 low sb!vm:lowtag-mask) + (- sb!vm:word-shift)))) + (return gspace))) + (error "don't even know how to look for a GSPACE for ~S" des))))) (defun make-random-descriptor (value) (make-descriptor (logand (ash value (- descriptor-low-bits)) - (1- (ash 1 - (- sb!vm:word-bits descriptor-low-bits)))) - (logand value (1- (ash 1 descriptor-low-bits))))) + (1- (ash 1 + (- sb!vm:n-word-bits + descriptor-low-bits)))) + (logand value (1- (ash 1 descriptor-low-bits))))) (defun make-fixnum-descriptor (num) (when (>= (integer-length num) - (1+ (- sb!vm:word-bits sb!vm:lowtag-bits))) - (error "~D is too big for a fixnum." num)) - (make-random-descriptor (ash num (1- sb!vm:lowtag-bits)))) + (1+ (- sb!vm:n-word-bits sb!vm:n-lowtag-bits))) + (error "~W is too big for a fixnum." num)) + (make-random-descriptor (ash num (1- sb!vm:n-lowtag-bits)))) (defun make-other-immediate-descriptor (data type) - (make-descriptor (ash data (- sb!vm:type-bits descriptor-low-bits)) - (logior (logand (ash data (- descriptor-low-bits - sb!vm:type-bits)) - (1- (ash 1 descriptor-low-bits))) - type))) + (make-descriptor (ash data (- sb!vm:n-widetag-bits descriptor-low-bits)) + (logior (logand (ash data (- descriptor-low-bits + sb!vm:n-widetag-bits)) + (1- (ash 1 descriptor-low-bits))) + type))) (defun make-character-descriptor (data) - (make-other-immediate-descriptor data sb!vm:base-char-type)) + (make-other-immediate-descriptor data sb!vm:character-widetag)) (defun descriptor-beyond (des offset type) (let* ((low (logior (+ (logandc2 (descriptor-low des) sb!vm:lowtag-mask) - offset) - type)) - (high (+ (descriptor-high des) - (ash low (- descriptor-low-bits))))) + offset) + type)) + (high (+ (descriptor-high des) + (ash low (- descriptor-low-bits))))) (make-descriptor high (logand low (1- (ash 1 descriptor-low-bits)))))) ;;;; miscellaneous variables and other noise @@ -311,7 +483,7 @@ ;;; a handle on the trap object (defvar *unbound-marker*) -;; was: (make-other-immediate-descriptor 0 sb!vm:unbound-marker-type) +;; was: (make-other-immediate-descriptor 0 sb!vm:unbound-marker-widetag) ;;; a handle on the NIL object (defvar *nil-descriptor*) @@ -329,32 +501,6 @@ ;;; pathname), or NIL if we're not currently cold loading any object file (defvar *cold-load-filename* nil) (declaim (type (or string null) *cold-load-filename*)) - -;;; This is vestigial support for the CMU CL byte-swapping code. CMU -;;; CL code tested for whether it needed to swap bytes in GENESIS by -;;; 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. -;;; -;;; 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. -;;; The version of the system which is fed to the cross-compiler is -;;; now written in a subset of Common Lisp which doesn't require -;;; dumping a lot of things in such a way that machine byte order -;;; matters. (Mostly this is a matter of not using any specialized -;;; array type unless there's portable, high-level code to dump it.) -;;; If it *is* a problem, and you're trying to resurrect this code, -;;; please test particularly carefully, since I haven't had a chance -;;; to test the byte-swapping code at all. -- WHN 19990816 -;;; -;;; When this variable is non-NIL, byte-swapping is enabled wherever -;;; classic GENESIS would have done it. I.e. the value of this variable -;;; is the logical complement of -;;; (EQ (SB!C:BACKEND-BYTE-ORDER SB!C:*NATIVE-BACKEND*) -;;; (SB!C:BACKEND-BYTE-ORDER SB!C:*BACKEND*)) -;;; from CMU CL. -(defvar *genesis-byte-order-swap-p*) ;;;; miscellaneous stuff to read and write the core memory @@ -364,64 +510,15 @@ "Push THING onto the given cold-load LIST." `(setq ,list (cold-cons ,thing ,list))) -(defun maybe-byte-swap (word) - (declare (type (unsigned-byte 32) word)) - (assert (= sb!vm:word-bits 32)) - (assert (= sb!vm:byte-bits 8)) - (if (not *genesis-byte-order-swap-p*) - word - (logior (ash (ldb (byte 8 0) word) 24) - (ash (ldb (byte 8 8) word) 16) - (ash (ldb (byte 8 16) word) 8) - (ldb (byte 8 24) word)))) - -(defun maybe-byte-swap-short (short) - (declare (type (unsigned-byte 16) short)) - (assert (= sb!vm:word-bits 32)) - (assert (= 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)) - (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))) - (: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)) - (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))) - (:big-endian - (error "stub: no big-endian ports of SBCL (yet?)"))) - new-value) - (declaim (ftype (function (descriptor sb!vm:word) descriptor) read-wordindexed)) (defun read-wordindexed (address index) #!+sb-doc "Return the value which is displaced by INDEX words from ADDRESS." (let* ((gspace (descriptor-intuit-gspace address)) - (bytes (gspace-bytes gspace)) - (byte-index (ash (+ index (descriptor-word-offset address)) - sb!vm:word-shift)) - ;; KLUDGE: Do we really need to do byte swap here? It seems - ;; as though we shouldn't.. (This attempts to be a literal - ;; translation of CMU CL code, and I don't have a big-endian - ;; machine to test it.) -- WHN 19990817 - (value (maybe-byte-swap (byte-vector-ref-32 bytes byte-index)))) + (bytes (gspace-bytes gspace)) + (byte-index (ash (+ index (descriptor-word-offset address)) + sb!vm:word-shift)) + (value (bvref-word bytes byte-index))) (make-random-descriptor value))) (declaim (ftype (function (descriptor) descriptor) read-memory)) @@ -431,16 +528,17 @@ (read-wordindexed address 0)) ;;; (Note: In CMU CL, this function expected a SAP-typed ADDRESS -;;; value, instead of the SAPINT we use here.) -(declaim (ftype (function (sb!vm:word descriptor) (values)) note-load-time-value-reference)) +;;; value, instead of the SAP-INT we use here.) +(declaim (ftype (function (sb!vm:word descriptor) (values)) + note-load-time-value-reference)) (defun note-load-time-value-reference (address marker) (cold-push (cold-cons - (cold-intern :load-time-value-fixup) - (cold-cons (sapint-to-core address) - (cold-cons - (number-to-core (descriptor-word-offset marker)) - *nil-descriptor*))) - *current-reversed-cold-toplevels*) + (cold-intern :load-time-value-fixup) + (cold-cons (sap-int-to-core address) + (cold-cons + (number-to-core (descriptor-word-offset marker)) + *nil-descriptor*))) + *current-reversed-cold-toplevels*) (values)) (declaim (ftype (function (descriptor sb!vm:word descriptor)) write-wordindexed)) @@ -455,20 +553,16 @@ ;; perhaps write a comment somewhere explaining why it's not a good ;; idea?) -- WHN 19990817 (if (and (null (descriptor-gspace value)) - (not (null (descriptor-word-offset value)))) + (not (null (descriptor-word-offset value)))) (note-load-time-value-reference (+ (logandc2 (descriptor-bits address) - sb!vm:lowtag-mask) - (ash index sb!vm:word-shift)) - value) - ;; Note: There's a MAYBE-BYTE-SWAP in here in CMU CL, which I - ;; think is unnecessary now that we're doing the write - ;; byte-by-byte at high level. (I can't test this, though..) -- - ;; WHN 19990817 + sb!vm:lowtag-mask) + (ash index sb!vm:word-shift)) + value) (let* ((bytes (gspace-bytes (descriptor-intuit-gspace address))) - (byte-index (ash (+ index (descriptor-word-offset address)) - sb!vm:word-shift))) - (setf (byte-vector-ref-32 bytes byte-index) - (maybe-byte-swap (descriptor-bits value)))))) + (byte-index (ash (+ index (descriptor-word-offset address)) + sb!vm:word-shift))) + (setf (bvref-word bytes byte-index) + (descriptor-bits value))))) (declaim (ftype (function (descriptor descriptor)) write-memory)) (defun write-memory (address value) @@ -489,20 +583,20 @@ #!+sb-doc "Allocate LENGTH words in GSPACE and return a new descriptor of type LOWTAG pointing to them." - (allocate-descriptor gspace (ash length sb!vm:word-shift) lowtag)) + (allocate-cold-descriptor gspace (ash length sb!vm:word-shift) lowtag)) (defun allocate-unboxed-object (gspace element-bits length type) #!+sb-doc "Allocate LENGTH units of ELEMENT-BITS bits plus a header word in GSPACE and return an ``other-pointer'' descriptor to them. Initialize the header word with the resultant length and TYPE." - (let* ((bytes (/ (* element-bits length) sb!vm:byte-bits)) - (des (allocate-descriptor gspace - (+ bytes sb!vm:word-bytes) - sb!vm:other-pointer-type))) + (let* ((bytes (/ (* element-bits length) sb!vm:n-byte-bits)) + (des (allocate-cold-descriptor gspace + (+ bytes sb!vm:n-word-bytes) + sb!vm:other-pointer-lowtag))) (write-memory des - (make-other-immediate-descriptor (ash bytes - (- sb!vm:word-shift)) - type)) + (make-other-immediate-descriptor (ash bytes + (- sb!vm:word-shift)) + type)) des)) (defun allocate-vector-object (gspace element-bits length type) #!+sb-doc @@ -511,232 +605,211 @@ header word with TYPE and the length slot with LENGTH." ;; FIXME: Here and in ALLOCATE-UNBOXED-OBJECT, BYTES is calculated using ;; #'/ instead of #'CEILING, which seems wrong. - (let* ((bytes (/ (* element-bits length) sb!vm:byte-bits)) - (des (allocate-descriptor gspace (+ bytes (* 2 sb!vm:word-bytes)) - sb!vm:other-pointer-type))) + (let* ((bytes (/ (* element-bits length) sb!vm:n-byte-bits)) + (des (allocate-cold-descriptor gspace + (+ bytes (* 2 sb!vm:n-word-bytes)) + sb!vm:other-pointer-lowtag))) (write-memory des (make-other-immediate-descriptor 0 type)) (write-wordindexed des - sb!vm:vector-length-slot - (make-fixnum-descriptor length)) + sb!vm:vector-length-slot + (make-fixnum-descriptor length)) des)) ;;;; copying simple objects into the cold core -(defun string-to-core (string &optional (gspace *dynamic*)) +(defun base-string-to-core (string &optional (gspace *dynamic*)) #!+sb-doc - "Copy string into the cold core and return a descriptor to it." + "Copy STRING (which must only contain STANDARD-CHARs) into the cold +core and return a descriptor to it." ;; (Remember that the system convention for storage of strings leaves an ;; extra null byte at the end to aid in call-out to C.) (let* ((length (length string)) - (des (allocate-vector-object gspace - sb!vm:byte-bits - (1+ length) - sb!vm:simple-string-type)) - (bytes (gspace-bytes gspace)) - (offset (+ (* sb!vm:vector-data-offset sb!vm:word-bytes) - (descriptor-byte-offset des)))) + (des (allocate-vector-object gspace + sb!vm:n-byte-bits + (1+ length) + sb!vm:simple-base-string-widetag)) + (bytes (gspace-bytes gspace)) + (offset (+ (* sb!vm:vector-data-offset sb!vm:n-word-bytes) + (descriptor-byte-offset des)))) (write-wordindexed des - sb!vm:vector-length-slot - (make-fixnum-descriptor length)) + sb!vm:vector-length-slot + (make-fixnum-descriptor length)) (dotimes (i length) - (setf (aref bytes (+ offset i)) - ;; KLUDGE: There's no guarantee that the character - ;; encoding here will be the same as the character - ;; encoding on the target machine, so using CHAR-CODE as - ;; we do, or a bitwise copy as CMU CL code did, is sleazy. - ;; (To make this more portable, perhaps we could use - ;; indices into the sequence which is used to test whether - ;; a character is a STANDARD-CHAR?) -- WHN 19990817 - (char-code (aref string i)))) - (setf (aref bytes (+ offset length)) - 0) ; null string-termination character for C + (setf (bvref bytes (+ offset i)) + (sb!xc:char-code (aref string i)))) + (setf (bvref bytes (+ offset length)) + 0) ; null string-termination character for C des)) (defun bignum-to-core (n) #!+sb-doc "Copy a bignum to the cold core." - (let* ((words (ceiling (1+ (integer-length n)) sb!vm:word-bits)) - (handle (allocate-unboxed-object *dynamic* - sb!vm:word-bits - words - sb!vm:bignum-type))) + (let* ((words (ceiling (1+ (integer-length n)) sb!vm:n-word-bits)) + (handle (allocate-unboxed-object *dynamic* + sb!vm:n-word-bits + words + sb!vm:bignum-widetag))) (declare (fixnum words)) (do ((index 1 (1+ index)) - (remainder n (ash remainder (- sb!vm:word-bits)))) - ((> index words) - (unless (zerop (integer-length remainder)) - ;; FIXME: Shouldn't this be a fatal error? - (warn "~D words of ~D were written, but ~D bits were left over." - words n remainder))) - (let ((word (ldb (byte sb!vm:word-bits 0) remainder))) - (write-wordindexed handle index - (make-descriptor (ash word (- descriptor-low-bits)) - (ldb (byte descriptor-low-bits 0) - word))))) + (remainder n (ash remainder (- sb!vm:n-word-bits)))) + ((> index words) + (unless (zerop (integer-length remainder)) + ;; FIXME: Shouldn't this be a fatal error? + (warn "~W words of ~W were written, but ~W bits were left over." + words n remainder))) + (let ((word (ldb (byte sb!vm:n-word-bits 0) remainder))) + (write-wordindexed handle index + (make-descriptor (ash word (- descriptor-low-bits)) + (ldb (byte descriptor-low-bits 0) + word))))) handle)) (defun number-pair-to-core (first second type) #!+sb-doc "Makes a number pair of TYPE (ratio or complex) and fills it in." - (let ((des (allocate-unboxed-object *dynamic* sb!vm:word-bits 2 type))) + (let ((des (allocate-unboxed-object *dynamic* sb!vm:n-word-bits 2 type))) (write-wordindexed des 1 first) (write-wordindexed des 2 second) des)) +(defun write-double-float-bits (address index x) + (let ((hi (double-float-high-bits x)) + (lo (double-float-low-bits x))) + (ecase sb!vm::n-word-bits + (32 + (let ((high-bits (make-random-descriptor hi)) + (low-bits (make-random-descriptor lo))) + (ecase sb!c:*backend-byte-order* + (:little-endian + (write-wordindexed address index low-bits) + (write-wordindexed address (1+ index) high-bits)) + (:big-endian + (write-wordindexed address index high-bits) + (write-wordindexed address (1+ index) low-bits))))) + (64 + (let ((bits (make-random-descriptor + (ecase sb!c:*backend-byte-order* + (:little-endian (logior lo (ash hi 32))) + ;; Just guessing. + #+nil (:big-endian (logior (logand hi #xffffffff) + (ash lo 32))))))) + (write-wordindexed address index bits)))) + address)) + (defun float-to-core (x) (etypecase x (single-float + ;; 64-bit platforms have immediate single-floats. + #!+#.(cl:if (cl:= sb!vm:n-word-bits 64) '(and) '(or)) + (make-random-descriptor (logior (ash (single-float-bits x) 32) + sb!vm::single-float-widetag)) + #!-#.(cl:if (cl:= sb!vm:n-word-bits 64) '(and) '(or)) (let ((des (allocate-unboxed-object *dynamic* - sb!vm:word-bits - (1- sb!vm:single-float-size) - sb!vm:single-float-type))) + sb!vm:n-word-bits + (1- sb!vm:single-float-size) + sb!vm:single-float-widetag))) (write-wordindexed des - sb!vm:single-float-value-slot - (make-random-descriptor (single-float-bits x))) + sb!vm:single-float-value-slot + (make-random-descriptor (single-float-bits x))) des)) (double-float (let ((des (allocate-unboxed-object *dynamic* - sb!vm:word-bits - (1- sb!vm:double-float-size) - sb!vm:double-float-type)) - (high-bits (make-random-descriptor (double-float-high-bits x))) - (low-bits (make-random-descriptor (double-float-low-bits x)))) - (ecase sb!c:*backend-byte-order* - (:little-endian - (write-wordindexed des sb!vm:double-float-value-slot low-bits) - (write-wordindexed des (1+ sb!vm:double-float-value-slot) high-bits)) - (:big-endian - (write-wordindexed des sb!vm:double-float-value-slot high-bits) - (write-wordindexed des (1+ sb!vm:double-float-value-slot) low-bits))) - des)) - #!+(and long-float x86) - (long-float - (let ((des (allocate-unboxed-object *dynamic* - sb!vm:word-bits - (1- sb!vm:long-float-size) - sb!vm:long-float-type)) - (exp-bits (make-random-descriptor (long-float-exp-bits x))) - (high-bits (make-random-descriptor (long-float-high-bits x))) - (low-bits (make-random-descriptor (long-float-low-bits x)))) - (ecase sb!c:*backend-byte-order* - (:little-endian - (write-wordindexed des sb!vm:long-float-value-slot low-bits) - (write-wordindexed des (1+ sb!vm:long-float-value-slot) high-bits) - (write-wordindexed des (+ 2 sb!vm:long-float-value-slot) exp-bits)) - (:big-endian - (error "LONG-FLOAT is not supported for big-endian byte order."))) - des)))) + sb!vm:n-word-bits + (1- sb!vm:double-float-size) + sb!vm:double-float-widetag))) + (write-double-float-bits des sb!vm:double-float-value-slot x))))) (defun complex-single-float-to-core (num) (declare (type (complex single-float) num)) - (let ((des (allocate-unboxed-object *dynamic* sb!vm:word-bits - (1- sb!vm:complex-single-float-size) - sb!vm:complex-single-float-type))) + (let ((des (allocate-unboxed-object *dynamic* sb!vm:n-word-bits + (1- sb!vm:complex-single-float-size) + sb!vm:complex-single-float-widetag))) (write-wordindexed des sb!vm:complex-single-float-real-slot - (make-random-descriptor (single-float-bits (realpart num)))) + (make-random-descriptor (single-float-bits (realpart num)))) (write-wordindexed des sb!vm:complex-single-float-imag-slot - (make-random-descriptor (single-float-bits (imagpart num)))) + (make-random-descriptor (single-float-bits (imagpart num)))) des)) (defun complex-double-float-to-core (num) (declare (type (complex double-float) num)) - (let ((des (allocate-unboxed-object *dynamic* sb!vm:word-bits - (1- sb!vm:complex-double-float-size) - sb!vm:complex-double-float-type))) - (let* ((real (realpart num)) - (high-bits (make-random-descriptor (double-float-high-bits real))) - (low-bits (make-random-descriptor (double-float-low-bits real)))) - (ecase sb!c:*backend-byte-order* - (:little-endian - (write-wordindexed des sb!vm:complex-double-float-real-slot low-bits) - (write-wordindexed des (1+ sb!vm:complex-double-float-real-slot) high-bits)) - (:big-endian - (write-wordindexed des sb!vm:complex-double-float-real-slot high-bits) - (write-wordindexed des (1+ sb!vm:complex-double-float-real-slot) low-bits)))) - (let* ((imag (imagpart num)) - (high-bits (make-random-descriptor (double-float-high-bits imag))) - (low-bits (make-random-descriptor (double-float-low-bits imag)))) - (ecase sb!c:*backend-byte-order* - (:little-endian - (write-wordindexed des sb!vm:complex-double-float-imag-slot low-bits) - (write-wordindexed des (1+ sb!vm:complex-double-float-imag-slot) high-bits)) - (:big-endian - (write-wordindexed des sb!vm:complex-double-float-imag-slot high-bits) - (write-wordindexed des (1+ sb!vm:complex-double-float-imag-slot) low-bits)))) - des)) - + (let ((des (allocate-unboxed-object *dynamic* sb!vm:n-word-bits + (1- sb!vm:complex-double-float-size) + sb!vm:complex-double-float-widetag))) + (write-double-float-bits des sb!vm:complex-double-float-real-slot + (realpart num)) + (write-double-float-bits des sb!vm:complex-double-float-imag-slot + (imagpart num)))) + +;;; Copy the given number to the core. (defun number-to-core (number) - #!+sb-doc - "Copy the given number to the core, or flame out if we can't deal with it." (typecase number - (integer (if (< (integer-length number) 30) - (make-fixnum-descriptor number) - (bignum-to-core number))) + (integer (if (< (integer-length number) + (- (1+ sb!vm:n-word-bits) sb!vm:n-lowtag-bits)) + (make-fixnum-descriptor number) + (bignum-to-core number))) (ratio (number-pair-to-core (number-to-core (numerator number)) - (number-to-core (denominator number)) - sb!vm:ratio-type)) + (number-to-core (denominator number)) + sb!vm:ratio-widetag)) ((complex single-float) (complex-single-float-to-core number)) ((complex double-float) (complex-double-float-to-core number)) #!+long-float ((complex long-float) (error "~S isn't a cold-loadable number at all!" number)) (complex (number-pair-to-core (number-to-core (realpart number)) - (number-to-core (imagpart number)) - sb!vm:complex-type)) + (number-to-core (imagpart number)) + sb!vm:complex-widetag)) (float (float-to-core number)) (t (error "~S isn't a cold-loadable number at all!" number)))) -(declaim (ftype (function (sb!vm:word) descriptor) sap-to-core)) -(defun sapint-to-core (sapint) +(declaim (ftype (function (sb!vm:word) descriptor) sap-int-to-core)) +(defun sap-int-to-core (sap-int) (let ((des (allocate-unboxed-object *dynamic* - sb!vm:word-bits - (1- sb!vm:sap-size) - sb!vm:sap-type))) + sb!vm:n-word-bits + (1- sb!vm:sap-size) + sb!vm:sap-widetag))) (write-wordindexed des - sb!vm:sap-pointer-slot - (make-random-descriptor sapint)) + sb!vm:sap-pointer-slot + (make-random-descriptor sap-int)) des)) ;;; Allocate a cons cell in GSPACE and fill it in with CAR and CDR. (defun cold-cons (car cdr &optional (gspace *dynamic*)) - (let ((dest (allocate-boxed-object gspace 2 sb!vm:list-pointer-type))) + (let ((dest (allocate-boxed-object gspace 2 sb!vm:list-pointer-lowtag))) (write-memory dest car) (write-wordindexed dest 1 cdr) dest)) -;;; Make a simple-vector that holds the specified OBJECTS, and return its -;;; descriptor. +;;; Make a simple-vector on the target that holds the specified +;;; OBJECTS, and return its descriptor. (defun vector-in-core (&rest objects) (let* ((size (length objects)) - (result (allocate-vector-object *dynamic* sb!vm:word-bits size - sb!vm:simple-vector-type))) + (result (allocate-vector-object *dynamic* sb!vm:n-word-bits size + sb!vm:simple-vector-widetag))) (dotimes (index size) (write-wordindexed result (+ index sb!vm:vector-data-offset) - (pop objects))) + (pop objects))) result)) ;;;; 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. (defun allocate-symbol (name) (declare (simple-string name)) (let ((symbol (allocate-unboxed-object (or *cold-symbol-allocation-gspace* - *dynamic*) - sb!vm:word-bits - (1- sb!vm:symbol-size) - sb!vm:symbol-header-type))) + *dynamic*) + sb!vm:n-word-bits + (1- sb!vm:symbol-size) + sb!vm:symbol-header-widetag))) (write-wordindexed symbol sb!vm:symbol-value-slot *unbound-marker*) - #!+x86 (write-wordindexed symbol - sb!vm:symbol-hash-slot - (make-fixnum-descriptor - (1+ (random sb!vm:*target-most-positive-fixnum*)))) + sb!vm:symbol-hash-slot + (make-fixnum-descriptor 0)) (write-wordindexed symbol sb!vm:symbol-plist-slot *nil-descriptor*) (write-wordindexed symbol sb!vm:symbol-name-slot - (string-to-core name *dynamic*)) + (base-string-to-core name *dynamic*)) (write-wordindexed symbol sb!vm:symbol-package-slot *nil-descriptor*) symbol)) @@ -747,8 +820,8 @@ (declaim (ftype (function ((or descriptor symbol) descriptor)) cold-set)) (defun cold-set (symbol-or-symbol-des value) (let ((symbol-des (etypecase symbol-or-symbol-des - (descriptor symbol-or-symbol-des) - (symbol (cold-intern symbol-or-symbol-des))))) + (descriptor symbol-or-symbol-des) + (symbol (cold-intern symbol-or-symbol-des))))) (write-wordindexed symbol-des sb!vm:symbol-value-slot value))) ;;;; layouts and type system pre-initialization @@ -780,34 +853,35 @@ ;;; 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 16) +(defconstant target-layout-length 17) ;;; Return a list of names created from the cold layout INHERITS data ;;; in X. (defun listify-cold-inherits (x) (let ((len (descriptor-fixnum (read-wordindexed x - sb!vm:vector-length-slot)))) + sb!vm:vector-length-slot)))) (collect ((res)) (dotimes (index len) - (let* ((des (read-wordindexed x (+ sb!vm:vector-data-offset index))) - (found (gethash (descriptor-bits des) *cold-layout-names*))) - (if found - (res found) - (error "unknown descriptor at index ~S (bits = ~8,'0X)" - index - (descriptor-bits des))))) + (let* ((des (read-wordindexed x (+ sb!vm:vector-data-offset index))) + (found (gethash (descriptor-bits des) *cold-layout-names*))) + (if found + (res found) + (error "unknown descriptor at index ~S (bits = ~8,'0X)" + index + (descriptor-bits des))))) (res)))) -(declaim (ftype (function (symbol descriptor descriptor descriptor) descriptor) - make-cold-layout)) -(defun make-cold-layout (name length inherits depthoid) +(declaim (ftype (function (symbol descriptor descriptor descriptor descriptor) + descriptor) + make-cold-layout)) +(defun make-cold-layout (name length inherits depthoid nuntagged) (let ((result (allocate-boxed-object *dynamic* - ;; KLUDGE: Why 1+? -- WHN 19990901 - (1+ target-layout-length) - sb!vm:instance-pointer-type))) + ;; KLUDGE: Why 1+? -- WHN 19990901 + (1+ target-layout-length) + sb!vm:instance-pointer-lowtag))) (write-memory result - (make-other-immediate-descriptor target-layout-length - sb!vm:instance-header-type)) + (make-other-immediate-descriptor + target-layout-length sb!vm:instance-header-widetag)) ;; KLUDGE: The offsets into LAYOUT below should probably be pulled out ;; of the cross-compiler's tables at genesis time instead of inserted @@ -844,35 +918,35 @@ ;; 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. - ;; - ;; FIXME: This expression here can generate a zero value, - ;; and the CMU CL code goes out of its way to generate - ;; strictly positive values (even though the field is - ;; declared as an INDEX). Check that it's really OK to - ;; have zero values in the CLOS-HASH slots. - (hash-value (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.) - (1+ sb!kernel:layout-clos-hash-max)))) - (write-wordindexed result - (+ i sb!vm:instance-slots-offset 1) - (make-fixnum-descriptor hash-value)))) + ;; 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. + ;; + ;; FIXME: This expression here can generate a zero value, + ;; and the CMU CL code goes out of its way to generate + ;; strictly positive values (even though the field is + ;; declared as an INDEX). Check that it's really OK to + ;; have zero values in the CLOS-HASH slots. + (hash-value (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.) + (1+ sb!kernel:layout-clos-hash-max)))) + (write-wordindexed result + (+ i sb!vm:instance-slots-offset 1) + (make-fixnum-descriptor hash-value)))) ;; Set other slot values. (let ((base (+ sb!vm:instance-slots-offset - sb!kernel:layout-clos-hash-length - 1))) + 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 @@ -880,14 +954,16 @@ (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 6) *nil-descriptor*) ; pure + (write-wordindexed result (+ base 7) nuntagged)) (setf (gethash name *cold-layouts*) - (list result - name - (descriptor-fixnum length) - (listify-cold-inherits inherits) - (descriptor-fixnum depthoid))) + (list result + name + (descriptor-fixnum length) + (listify-cold-inherits inherits) + (descriptor-fixnum depthoid) + (descriptor-fixnum nuntagged))) (setf (gethash (descriptor-bits result) *cold-layout-names*) name) result)) @@ -900,14 +976,16 @@ ;; #() 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 4))) + (make-cold-layout 'layout + (number-to-core target-layout-length) + (vector-in-core) + ;; FIXME: hard-coded LAYOUT-DEPTHOID of LAYOUT.. + (number-to-core 4) + ;; no raw slots in LAYOUT: + (number-to-core 0))) (write-wordindexed *layout-layout* - sb!vm:instance-slots-offset - *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.. @@ -915,40 +993,44 @@ ;; FIXME: The various LENGTH and DEPTHOID numbers should be taken from ;; the compiler's tables, not set by hand. (let* ((t-layout - (make-cold-layout 't - (number-to-core 0) - (vector-in-core) - (number-to-core 0))) - (i-layout - (make-cold-layout 'instance - (number-to-core 0) - (vector-in-core t-layout) - (number-to-core 1))) - (so-layout - (make-cold-layout 'structure-object - (number-to-core 1) - (vector-in-core t-layout i-layout) - (number-to-core 2))) - (bso-layout - (make-cold-layout 'structure!object - (number-to-core 1) - (vector-in-core t-layout i-layout so-layout) - (number-to-core 3))) - (layout-inherits (vector-in-core t-layout - i-layout - so-layout - bso-layout))) + (make-cold-layout 't + (number-to-core 0) + (vector-in-core) + (number-to-core 0) + (number-to-core 0))) + (i-layout + (make-cold-layout 'instance + (number-to-core 0) + (vector-in-core t-layout) + (number-to-core 1) + (number-to-core 0))) + (so-layout + (make-cold-layout 'structure-object + (number-to-core 1) + (vector-in-core t-layout i-layout) + (number-to-core 2) + (number-to-core 0))) + (bso-layout + (make-cold-layout 'structure!object + (number-to-core 1) + (vector-in-core t-layout i-layout so-layout) + (number-to-core 3) + (number-to-core 0))) + (layout-inherits (vector-in-core t-layout + i-layout + so-layout + bso-layout))) ;; ..and return to backpatch the layout of LAYOUT. (setf (fourth (gethash 'layout *cold-layouts*)) - (listify-cold-inherits layout-inherits)) + (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))) + ;; FIXME: hardcoded offset into layout struct + (+ sb!vm:instance-slots-offset + layout-clos-hash-length + 1 + 2) + layout-inherits))) ;;;; interning symbols in the cold image @@ -962,7 +1044,8 @@ ;;; ;;; ;;; -;;; ) +;;; +;;; ) ;;; ;;; KLUDGE: It would be nice to implement the sublists as instances of ;;; a DEFSTRUCT (:TYPE LIST). (They'd still be lists, but at least we'd be @@ -974,19 +1057,82 @@ (defvar *cold-package-symbols*) (declaim (type list *cold-package-symbols*)) -;;; a map from descriptors to symbols, so that we can back up. The key is the -;;; address in the target core. +;;; a map from descriptors to symbols, so that we can back up. The key +;;; is the address in the target core. (defvar *cold-symbols*) (declaim (type hash-table *cold-symbols*)) +;;; sanity check for a symbol we're about to create on the target +;;; +;;; Make sure that the symbol has an appropriate package. In +;;; particular, catch the so-easy-to-make error of typing something +;;; like SB-KERNEL:%BYTE-BLT in cold sources when what you really +;;; need is SB!KERNEL:%BYTE-BLT. +(defun package-ok-for-target-symbol-p (package) + (let ((package-name (package-name package))) + (or + ;; Cold interning things in these standard packages is OK. (Cold + ;; interning things in the other standard package, CL-USER, isn't + ;; OK. We just use CL-USER to expose symbols whose homes are in + ;; other packages. Thus, trying to cold intern a symbol whose + ;; home package is CL-USER probably means that a coding error has + ;; been made somewhere.) + (find package-name '("COMMON-LISP" "KEYWORD") :test #'string=) + ;; Cold interning something in one of our target-code packages, + ;; which are ever-so-rigorously-and-elegantly distinguished by + ;; this prefix on their names, is OK too. + (string= package-name "SB!" :end1 3 :end2 3) + ;; This one is OK too, since it ends up being COMMON-LISP on the + ;; target. + (string= package-name "SB-XC") + ;; Anything else looks bad. (maybe COMMON-LISP-USER? maybe an extension + ;; package in the xc host? something we can't think of + ;; a valid reason to cold intern, anyway...) + ))) + +;;; like SYMBOL-PACKAGE, but safe for symbols which end up on the target +;;; +;;; Most host symbols we dump onto the target are created by SBCL +;;; itself, so that as long as we avoid gratuitously +;;; cross-compilation-unfriendly hacks, it just happens that their +;;; SYMBOL-PACKAGE in the host system corresponds to their +;;; SYMBOL-PACKAGE in the target system. However, that's not the case +;;; in the COMMON-LISP package, where we don't get to create the +;;; symbols but instead have to use the ones that the xc host created. +;;; In particular, while ANSI specifies which symbols are exported +;;; from COMMON-LISP, it doesn't specify that their home packages are +;;; COMMON-LISP, so the xc host can keep them in random packages which +;;; don't exist on the target (e.g. CLISP keeping some CL-exported +;;; symbols in the CLOS package). +(defun symbol-package-for-target-symbol (symbol) + ;; We want to catch weird symbols like CLISP's + ;; CL:FIND-METHOD=CLOS::FIND-METHOD, but we don't want to get + ;; sidetracked by ordinary symbols like :CHARACTER which happen to + ;; have the same SYMBOL-NAME as exports from COMMON-LISP. + (multiple-value-bind (cl-symbol cl-status) + (find-symbol (symbol-name symbol) *cl-package*) + (if (and (eq symbol cl-symbol) + (eq cl-status :external)) + ;; special case, to work around possible xc host weirdness + ;; in COMMON-LISP package + *cl-package* + ;; ordinary case + (let ((result (symbol-package symbol))) + (aver (package-ok-for-target-symbol-p result)) + result)))) + ;;; Return a handle on an interned symbol. If necessary allocate the ;;; symbol and record which package the symbol was referenced in. When ;;; we allocate the symbol, make sure we record a reference to the ;;; symbol in the home package so that the package gets set. -(defun cold-intern (symbol &optional (package (symbol-package symbol))) +(defun cold-intern (symbol + &optional + (package (symbol-package-for-target-symbol symbol))) + + (aver (package-ok-for-target-symbol-p package)) ;; Anything on the cross-compilation host which refers to the target - ;; machinery through the host SB-XC package can be translated to + ;; machinery through the host SB-XC package should be translated to ;; something on the target which refers to the same machinery ;; through the target COMMON-LISP package. (let ((p (find-package "SB-XC"))) @@ -996,74 +1142,74 @@ (setf symbol (intern (symbol-name symbol) *cl-package*)))) (let (;; Information about each cold-interned symbol is stored - ;; in COLD-INTERN-INFO. - ;; (CAR COLD-INTERN-INFO) = descriptor of symbol - ;; (CDR COLD-INTERN-INFO) = list of packages, other than symbol's - ;; own package, referring to symbol - ;; (*COLD-PACKAGE-SYMBOLS* and *COLD-SYMBOLS* store basically the same - ;; information, but with the mapping running the opposite way.) - (cold-intern-info (get symbol 'cold-intern-info))) + ;; in COLD-INTERN-INFO. + ;; (CAR COLD-INTERN-INFO) = descriptor of symbol + ;; (CDR COLD-INTERN-INFO) = list of packages, other than symbol's + ;; own package, referring to symbol + ;; (*COLD-PACKAGE-SYMBOLS* and *COLD-SYMBOLS* store basically the + ;; same information, but with the mapping running the opposite way.) + (cold-intern-info (get symbol 'cold-intern-info))) (unless cold-intern-info - (cond ((eq (symbol-package symbol) package) - (let ((handle (allocate-symbol (symbol-name symbol)))) - (setf (gethash (descriptor-bits handle) *cold-symbols*) symbol) - (when (eq package *keyword-package*) - (cold-set handle handle)) - (setq cold-intern-info - (setf (get symbol 'cold-intern-info) (cons handle nil))))) - (t - (cold-intern symbol) - (setq cold-intern-info (get symbol 'cold-intern-info))))) + (cond ((eq (symbol-package-for-target-symbol symbol) package) + (let ((handle (allocate-symbol (symbol-name symbol)))) + (setf (gethash (descriptor-bits handle) *cold-symbols*) symbol) + (when (eq package *keyword-package*) + (cold-set handle handle)) + (setq cold-intern-info + (setf (get symbol 'cold-intern-info) (cons handle nil))))) + (t + (cold-intern symbol) + (setq cold-intern-info (get symbol 'cold-intern-info))))) (unless (or (null package) - (member package (cdr cold-intern-info))) + (member package (cdr cold-intern-info))) (push package (cdr cold-intern-info)) (let* ((old-cps-entry (assoc package *cold-package-symbols*)) - (cps-entry (or old-cps-entry - (car (push (list package) - *cold-package-symbols*))))) - (unless old-cps-entry - (/show "created *COLD-PACKAGE-SYMBOLS* entry for" package symbol)) - (push symbol (rest cps-entry)))) + (cps-entry (or old-cps-entry + (car (push (list package) + *cold-package-symbols*))))) + (unless old-cps-entry + (/show "created *COLD-PACKAGE-SYMBOLS* entry for" package symbol)) + (push symbol (rest cps-entry)))) (car cold-intern-info))) ;;; Construct and return a value for use as *NIL-DESCRIPTOR*. (defun make-nil-descriptor () (let* ((des (allocate-unboxed-object - *static* - sb!vm:word-bits - sb!vm:symbol-size - 0)) - (result (make-descriptor (descriptor-high des) - (+ (descriptor-low des) - (* 2 sb!vm:word-bytes) - (- sb!vm:list-pointer-type - sb!vm:other-pointer-type))))) + *static* + sb!vm:n-word-bits + sb!vm:symbol-size + 0)) + (result (make-descriptor (descriptor-high des) + (+ (descriptor-low des) + (* 2 sb!vm:n-word-bytes) + (- sb!vm:list-pointer-lowtag + sb!vm:other-pointer-lowtag))))) (write-wordindexed des - 1 - (make-other-immediate-descriptor - 0 - sb!vm:symbol-header-type)) + 1 + (make-other-immediate-descriptor + 0 + sb!vm:symbol-header-widetag)) (write-wordindexed des - (+ 1 sb!vm:symbol-value-slot) - result) + (+ 1 sb!vm:symbol-value-slot) + result) (write-wordindexed des - (+ 2 sb!vm:symbol-value-slot) - result) + (+ 2 sb!vm:symbol-value-slot) + result) (write-wordindexed des - (+ 1 sb!vm:symbol-plist-slot) - result) + (+ 1 sb!vm:symbol-plist-slot) + result) (write-wordindexed des - (+ 1 sb!vm:symbol-name-slot) - ;; This is *DYNAMIC*, and DES is *STATIC*, - ;; because that's the way CMU CL did it; I'm - ;; not sure whether there's an underlying - ;; reason. -- WHN 1990826 - (string-to-core "NIL" *dynamic*)) + (+ 1 sb!vm:symbol-name-slot) + ;; This is *DYNAMIC*, and DES is *STATIC*, + ;; because that's the way CMU CL did it; I'm + ;; not sure whether there's an underlying + ;; reason. -- WHN 1990826 + (base-string-to-core "NIL" *dynamic*)) (write-wordindexed des - (+ 1 sb!vm:symbol-package-slot) - result) + (+ 1 sb!vm:symbol-package-slot) + result) (setf (get nil 'cold-intern-info) - (cons result nil)) + (cons result nil)) (cold-intern nil) result)) @@ -1076,16 +1222,16 @@ ;; Intern the others. (dolist (symbol sb!vm:*static-symbols*) (let* ((des (cold-intern symbol)) - (offset-wanted (sb!vm:static-symbol-offset symbol)) - (offset-found (- (descriptor-low des) - (descriptor-low *nil-descriptor*)))) - (unless (= offset-wanted offset-found) - ;; FIXME: should be fatal - (warn "Offset from ~S to ~S is ~D, not ~D" - symbol - nil - offset-found - offset-wanted)))) + (offset-wanted (sb!vm:static-symbol-offset symbol)) + (offset-found (- (descriptor-low des) + (descriptor-low *nil-descriptor*)))) + (unless (= offset-wanted offset-found) + ;; FIXME: should be fatal + (warn "Offset from ~S to ~S is ~W, not ~W" + symbol + nil + offset-found + offset-wanted)))) ;; Establish the value of T. (let ((t-symbol (cold-intern t))) (cold-set t-symbol t-symbol)))) @@ -1095,10 +1241,10 @@ (defun cold-list-all-layouts () (let ((result *nil-descriptor*)) (maphash (lambda (key stuff) - (cold-push (cold-cons (cold-intern key) - (first stuff)) - result)) - *cold-layouts*) + (cold-push (cold-cons (cold-intern key) + (first stuff)) + result)) + *cold-layouts*) result)) ;;; Establish initial values for magic symbols. @@ -1109,161 +1255,152 @@ ;;; intern it. (defun finish-symbols () - ;; FIXME: Why use SETQ (setting symbol value) instead of just using - ;; the function values for these things?? I.e. why do we need this - ;; section at all? Is it because all the FDEFINITION stuff gets in - ;; the way of reading function values and is too hairy to rely on at - ;; cold boot? FIXME: 5/6 of these are in *STATIC-SYMBOLS* in - ;; parms.lisp, but %HANDLE-FUNCTION-END-BREAKPOINT is not. Why? - ;; Explain. + ;; I think the point of setting these functions into SYMBOL-VALUEs + ;; here, instead of using SYMBOL-FUNCTION, is that in CMU CL + ;; SYMBOL-FUNCTION reduces to FDEFINITION, which is a pretty + ;; hairy operation (involving globaldb.lisp etc.) which we don't + ;; want to invoke early in cold init. -- WHN 2001-12-05 + ;; + ;; FIXME: So OK, that's a reasonable reason to do something weird like + ;; this, but this is still a weird thing to do, and we should change + ;; the names to highlight that something weird is going on. Perhaps + ;; *MAYBE-GC-FUN*, *INTERNAL-ERROR-FUN*, *HANDLE-BREAKPOINT-FUN*, + ;; and *HANDLE-FUN-END-BREAKPOINT-FUN*... (macrolet ((frob (symbol) - `(cold-set ',symbol - (cold-fdefinition-object (cold-intern ',symbol))))) - (frob !cold-init) - (frob sb!impl::maybe-gc) + `(cold-set ',symbol + (cold-fdefinition-object (cold-intern ',symbol))))) + (frob sub-gc) (frob internal-error) + (frob sb!kernel::control-stack-exhausted-error) + (frob sb!kernel::undefined-alien-variable-error) + (frob sb!kernel::undefined-alien-function-error) + (frob sb!kernel::memory-fault-error) (frob sb!di::handle-breakpoint) - (frob sb!di::handle-function-end-breakpoint) - (frob sb!impl::fdefinition-object)) + (frob sb!di::handle-fun-end-breakpoint)) - (cold-set '*current-catch-block* (make-fixnum-descriptor 0)) - (cold-set '*current-unwind-protect-block* (make-fixnum-descriptor 0)) - (cold-set '*eval-stack-top* (make-fixnum-descriptor 0)) + (cold-set 'sb!vm::*current-catch-block* (make-fixnum-descriptor 0)) + (cold-set 'sb!vm::*current-unwind-protect-block* (make-fixnum-descriptor 0)) (cold-set '*free-interrupt-context-index* (make-fixnum-descriptor 0)) - ;; FIXME: *!INITIAL-LAYOUTS* should be exported from SB!KERNEL, or - ;; perhaps from SB-LD. - (cold-set 'sb!kernel::*!initial-layouts* (cold-list-all-layouts)) + (cold-set '*!initial-layouts* (cold-list-all-layouts)) (/show "dumping packages" (mapcar #'car *cold-package-symbols*)) (let ((initial-symbols *nil-descriptor*)) (dolist (cold-package-symbols-entry *cold-package-symbols*) (let* ((cold-package (car cold-package-symbols-entry)) - (symbols (cdr cold-package-symbols-entry)) - (shadows (package-shadowing-symbols cold-package)) - (internal *nil-descriptor*) - (external *nil-descriptor*) - (imported-internal *nil-descriptor*) - (imported-external *nil-descriptor*) - (shadowing *nil-descriptor*)) - (/show "dumping" cold-package symbols) - - ;; FIXME: Add assertions here to make sure that inappropriate stuff - ;; isn't being dumped: - ;; * the CL-USER package - ;; * the SB-COLD package - ;; * any internal symbols in the CL package - ;; * basically any package other than CL, KEYWORD, or the packages - ;; in package-data-list.lisp-expr - ;; and that the structure of the KEYWORD package (e.g. whether - ;; any symbols are internal to it) matches what we want in the - ;; target SBCL. - - ;; FIXME: It seems possible that by looking at the contents of - ;; packages in the target SBCL we could find which symbols in - ;; package-data-lisp.lisp-expr are now obsolete. (If I - ;; understand correctly, only symbols which actually have - ;; definitions or which are otherwise referred to actually end - ;; up in the target packages.) - - (dolist (symbol symbols) - (let ((handle (car (get symbol 'cold-intern-info))) - (imported-p (not (eq (symbol-package symbol) cold-package)))) - (multiple-value-bind (found where) - (find-symbol (symbol-name symbol) cold-package) - (unless (and where (eq found symbol)) - (error "The symbol ~S is not available in ~S." - symbol - cold-package)) - (when (memq symbol shadows) - (cold-push handle shadowing)) - (case where - (:internal (if imported-p - (cold-push handle imported-internal) - (cold-push handle internal))) - (:external (if imported-p - (cold-push handle imported-external) - (cold-push handle external))))))) - (let ((r *nil-descriptor*)) - (cold-push shadowing r) - (cold-push imported-external r) - (cold-push imported-internal r) - (cold-push external r) - (cold-push internal r) - (cold-push (make-make-package-args cold-package) r) - ;; FIXME: It would be more space-efficient to use vectors - ;; instead of lists here, and space-efficiency here would be - ;; nice, since it would reduce the peak memory usage in - ;; genesis and cold init. - (cold-push r initial-symbols)))) + (symbols (cdr cold-package-symbols-entry)) + (shadows (package-shadowing-symbols cold-package)) + (documentation (base-string-to-core (documentation cold-package t))) + (internal *nil-descriptor*) + (external *nil-descriptor*) + (imported-internal *nil-descriptor*) + (imported-external *nil-descriptor*) + (shadowing *nil-descriptor*)) + (declare (type package cold-package)) ; i.e. not a target descriptor + (/show "dumping" cold-package symbols) + + ;; FIXME: Add assertions here to make sure that inappropriate stuff + ;; isn't being dumped: + ;; * the CL-USER package + ;; * the SB-COLD package + ;; * any internal symbols in the CL package + ;; * basically any package other than CL, KEYWORD, or the packages + ;; in package-data-list.lisp-expr + ;; and that the structure of the KEYWORD package (e.g. whether + ;; any symbols are internal to it) matches what we want in the + ;; target SBCL. + + ;; FIXME: It seems possible that by looking at the contents of + ;; packages in the target SBCL we could find which symbols in + ;; package-data-lisp.lisp-expr are now obsolete. (If I + ;; understand correctly, only symbols which actually have + ;; definitions or which are otherwise referred to actually end + ;; up in the target packages.) + + (dolist (symbol symbols) + (let ((handle (car (get symbol 'cold-intern-info))) + (imported-p (not (eq (symbol-package-for-target-symbol symbol) + cold-package)))) + (multiple-value-bind (found where) + (find-symbol (symbol-name symbol) cold-package) + (unless (and where (eq found symbol)) + (error "The symbol ~S is not available in ~S." + symbol + cold-package)) + (when (memq symbol shadows) + (cold-push handle shadowing)) + (case where + (:internal (if imported-p + (cold-push handle imported-internal) + (cold-push handle internal))) + (:external (if imported-p + (cold-push handle imported-external) + (cold-push handle external))))))) + (let ((r *nil-descriptor*)) + (cold-push documentation r) + (cold-push shadowing r) + (cold-push imported-external r) + (cold-push imported-internal r) + (cold-push external r) + (cold-push internal r) + (cold-push (make-make-package-args cold-package) r) + ;; FIXME: It would be more space-efficient to use vectors + ;; instead of lists here, and space-efficiency here would be + ;; nice, since it would reduce the peak memory usage in + ;; genesis and cold init. + (cold-push r initial-symbols)))) (cold-set '*!initial-symbols* initial-symbols)) (cold-set '*!initial-fdefn-objects* (list-all-fdefn-objects)) (cold-set '*!reversed-cold-toplevels* *current-reversed-cold-toplevels*) - #!+x86 + #!+(or x86 x86-64) (progn (cold-set 'sb!vm::*fp-constant-0d0* (number-to-core 0d0)) (cold-set 'sb!vm::*fp-constant-1d0* (number-to-core 1d0)) - (cold-set 'sb!vm::*fp-constant-0s0* (number-to-core 0s0)) - (cold-set 'sb!vm::*fp-constant-1s0* (number-to-core 1s0)) - #!+long-float - (progn - (cold-set 'sb!vm::*fp-constant-0l0* (number-to-core 0L0)) - (cold-set 'sb!vm::*fp-constant-1l0* (number-to-core 1L0)) - ;; FIXME: Why is initialization of PI conditional on LONG-FLOAT? - ;; (ditto LG2, LN2, L2E, etc.) - (cold-set 'sb!vm::*fp-constant-pi* (number-to-core pi)) - (cold-set 'sb!vm::*fp-constant-l2t* (number-to-core (log 10L0 2L0))) - (cold-set 'sb!vm::*fp-constant-l2e* - (number-to-core (log 2.718281828459045235360287471352662L0 2L0))) - (cold-set 'sb!vm::*fp-constant-lg2* (number-to-core (log 2L0 10L0))) - (cold-set 'sb!vm::*fp-constant-ln2* - (number-to-core - (log 2L0 2.718281828459045235360287471352662L0)))) - #!+gencgc - (cold-set 'sb!vm::*SCAVENGE-READ-ONLY-GSPACE* *nil-descriptor*))) + (cold-set 'sb!vm::*fp-constant-0f0* (number-to-core 0f0)) + (cold-set 'sb!vm::*fp-constant-1f0* (number-to-core 1f0)))) ;;; Make a cold list that can be used as the arg list to MAKE-PACKAGE in order ;;; to make a package that is similar to PKG. (defun make-make-package-args (pkg) (let* ((use *nil-descriptor*) - (cold-nicknames *nil-descriptor*) - (res *nil-descriptor*)) + (cold-nicknames *nil-descriptor*) + (res *nil-descriptor*)) (dolist (u (package-use-list pkg)) (when (assoc u *cold-package-symbols*) - (cold-push (string-to-core (package-name u)) use))) + (cold-push (base-string-to-core (package-name u)) use))) (let* ((pkg-name (package-name pkg)) - ;; Make the package nickname lists for the standard packages - ;; be the minimum specified by ANSI, regardless of what value - ;; the cross-compilation host happens to use. - (warm-nicknames (cond ((string= pkg-name "COMMON-LISP") - '("CL")) - ((string= pkg-name "COMMON-LISP-USER") - '("CL-USER")) - ((string= pkg-name "KEYWORD") - '()) - ;; For packages other than the - ;; standard packages, the nickname - ;; list was specified by our package - ;; setup code, not by properties of - ;; what cross-compilation host we - ;; happened to use, and we can just - ;; propagate it into the target. - (t - (package-nicknames pkg))))) + ;; Make the package nickname lists for the standard packages + ;; be the minimum specified by ANSI, regardless of what value + ;; the cross-compilation host happens to use. + (warm-nicknames (cond ((string= pkg-name "COMMON-LISP") + '("CL")) + ((string= pkg-name "COMMON-LISP-USER") + '("CL-USER")) + ((string= pkg-name "KEYWORD") + '()) + ;; For packages other than the + ;; standard packages, the nickname + ;; list was specified by our package + ;; setup code, not by properties of + ;; what cross-compilation host we + ;; happened to use, and we can just + ;; propagate it into the target. + (t + (package-nicknames pkg))))) (dolist (warm-nickname warm-nicknames) - (cold-push (string-to-core warm-nickname) cold-nicknames))) + (cold-push (base-string-to-core warm-nickname) cold-nicknames))) (cold-push (number-to-core (truncate (package-internal-symbol-count pkg) - 0.8)) - res) + 0.8)) + res) (cold-push (cold-intern :internal-symbols) res) (cold-push (number-to-core (truncate (package-external-symbol-count pkg) - 0.8)) - res) + 0.8)) + res) (cold-push (cold-intern :external-symbols) res) (cold-push cold-nicknames res) @@ -1272,104 +1409,136 @@ (cold-push use res) (cold-push (cold-intern :use) res) - (cold-push (string-to-core (package-name pkg)) res) + (cold-push (base-string-to-core (package-name pkg)) res) res)) -;;;; fdefinition objects +;;;; functions and fdefinition objects ;;; a hash table mapping from fdefinition names to descriptors of cold -;;; objects. Note: Since fdefinition names can be lists like '(SETF -;;; FOO), and we want to have only one entry per name, this must be an -;;; 'EQUAL hash table, not the default 'EQL. +;;; objects +;;; +;;; Note: Since fdefinition names can be lists like '(SETF FOO), and +;;; we want to have only one entry per name, this must be an 'EQUAL +;;; hash table, not the default 'EQL. (defvar *cold-fdefn-objects*) (defvar *cold-fdefn-gspace* nil) -;;; Given a cold representation of an FDEFN name, return a warm representation. -;;; -;;; Note: Despite the name, this actually has little to do with -;;; FDEFNs, it's just a function for warming up values, and the only -;;; values it knows how to warm up are symbols and lists. (The -;;; connection to FDEFNs is that symbols and lists are the only -;;; possible names for functions.) -(declaim (ftype (function (descriptor) (or symbol list)) warm-fdefn-name)) -(defun warm-fdefn-name (des) - (ecase (descriptor-lowtag des) - (#.sb!vm:list-pointer-type ; FIXME: no #. - (if (= (descriptor-bits des) (descriptor-bits *nil-descriptor*)) - nil - ;; FIXME: If we cold-intern this again, we might get a different - ;; name. Check to make sure that any hash tables along the way - ;; are 'EQUAL not 'EQL. - (cons (warm-fdefn-name (read-wordindexed des sb!vm:cons-car-slot)) - (warm-fdefn-name (read-wordindexed des sb!vm:cons-cdr-slot))))) - (#.sb!vm:other-pointer-type ; FIXME: no #. - (or (gethash (descriptor-bits des) *cold-symbols*) - (descriptor-bits des))))) +;;; Given a cold representation of a symbol, return a warm +;;; representation. +(defun warm-symbol (des) + ;; Note that COLD-INTERN is responsible for keeping the + ;; *COLD-SYMBOLS* table up to date, so if DES happens to refer to an + ;; uninterned symbol, the code below will fail. But as long as we + ;; don't need to look up uninterned symbols during bootstrapping, + ;; that's OK.. + (multiple-value-bind (symbol found-p) + (gethash (descriptor-bits des) *cold-symbols*) + (declare (type symbol symbol)) + (unless found-p + (error "no warm symbol")) + symbol)) + +;;; like CL:CAR, CL:CDR, and CL:NULL but for cold values +(defun cold-car (des) + (aver (= (descriptor-lowtag des) sb!vm:list-pointer-lowtag)) + (read-wordindexed des sb!vm:cons-car-slot)) +(defun cold-cdr (des) + (aver (= (descriptor-lowtag des) sb!vm:list-pointer-lowtag)) + (read-wordindexed des sb!vm:cons-cdr-slot)) +(defun cold-null (des) + (= (descriptor-bits des) + (descriptor-bits *nil-descriptor*))) + +;;; Given a cold representation of a function name, return a warm +;;; representation. +(declaim (ftype (function (descriptor) (or symbol list)) warm-fun-name)) +(defun warm-fun-name (des) + (let ((result + (ecase (descriptor-lowtag des) + (#.sb!vm:list-pointer-lowtag + (aver (not (cold-null des))) ; function named NIL? please no.. + ;; Do cold (DESTRUCTURING-BIND (COLD-CAR COLD-CADR) DES ..). + (let* ((car-des (cold-car des)) + (cdr-des (cold-cdr des)) + (cadr-des (cold-car cdr-des)) + (cddr-des (cold-cdr cdr-des))) + (aver (cold-null cddr-des)) + (list (warm-symbol car-des) + (warm-symbol cadr-des)))) + (#.sb!vm:other-pointer-lowtag + (warm-symbol des))))) + (legal-fun-name-or-type-error result) + result)) (defun cold-fdefinition-object (cold-name &optional leave-fn-raw) (declare (type descriptor cold-name)) - (let ((warm-name (warm-fdefn-name cold-name))) + (/show0 "/cold-fdefinition-object") + (let ((warm-name (warm-fun-name cold-name))) (or (gethash warm-name *cold-fdefn-objects*) - (let ((fdefn (allocate-boxed-object (or *cold-fdefn-gspace* *dynamic*) - (1- sb!vm:fdefn-size) - sb!vm:other-pointer-type))) - - (setf (gethash warm-name *cold-fdefn-objects*) fdefn) - (write-memory fdefn (make-other-immediate-descriptor - (1- sb!vm:fdefn-size) sb!vm:fdefn-type)) - (write-wordindexed fdefn sb!vm:fdefn-name-slot cold-name) - (unless leave-fn-raw - (write-wordindexed fdefn sb!vm:fdefn-function-slot - *nil-descriptor*) - (write-wordindexed fdefn - sb!vm:fdefn-raw-addr-slot - (make-random-descriptor - (lookup-foreign-symbol "undefined_tramp")))) - fdefn)))) - -(defun cold-fset (cold-name defn) + (let ((fdefn (allocate-boxed-object (or *cold-fdefn-gspace* *dynamic*) + (1- sb!vm:fdefn-size) + sb!vm:other-pointer-lowtag))) + + (setf (gethash warm-name *cold-fdefn-objects*) fdefn) + (write-memory fdefn (make-other-immediate-descriptor + (1- sb!vm:fdefn-size) sb!vm:fdefn-widetag)) + (write-wordindexed fdefn sb!vm:fdefn-name-slot cold-name) + (unless leave-fn-raw + (write-wordindexed fdefn sb!vm:fdefn-fun-slot + *nil-descriptor*) + (write-wordindexed fdefn + sb!vm:fdefn-raw-addr-slot + (make-random-descriptor + (cold-foreign-symbol-address "undefined_tramp")))) + fdefn)))) + +;;; Handle the at-cold-init-time, fset-for-static-linkage operation +;;; requested by FOP-FSET. +(defun static-fset (cold-name defn) (declare (type descriptor cold-name)) (let ((fdefn (cold-fdefinition-object cold-name t)) - (type (logand (descriptor-low (read-memory defn)) sb!vm:type-mask))) - (write-wordindexed fdefn sb!vm:fdefn-function-slot defn) + (type (logand (descriptor-low (read-memory defn)) sb!vm:widetag-mask))) + (write-wordindexed fdefn sb!vm:fdefn-fun-slot defn) (write-wordindexed fdefn - sb!vm:fdefn-raw-addr-slot - (ecase type - (#.sb!vm:function-header-type - #!+sparc - defn - #!-sparc - (make-random-descriptor - (+ (logandc2 (descriptor-bits defn) - sb!vm:lowtag-mask) - (ash sb!vm:function-code-offset - sb!vm:word-shift)))) - (#.sb!vm:closure-header-type - (make-random-descriptor - (lookup-foreign-symbol "closure_tramp"))))) + sb!vm:fdefn-raw-addr-slot + (ecase type + (#.sb!vm:simple-fun-header-widetag + (/show0 "static-fset (simple-fun)") + #!+sparc + defn + #!-sparc + (make-random-descriptor + (+ (logandc2 (descriptor-bits defn) + sb!vm:lowtag-mask) + (ash sb!vm:simple-fun-code-offset + sb!vm:word-shift)))) + (#.sb!vm:closure-header-widetag + (/show0 "/static-fset (closure)") + (make-random-descriptor + (cold-foreign-symbol-address "closure_tramp"))))) fdefn)) (defun initialize-static-fns () (let ((*cold-fdefn-gspace* *static*)) - (dolist (sym sb!vm:*static-functions*) + (dolist (sym sb!vm:*static-funs*) (let* ((fdefn (cold-fdefinition-object (cold-intern sym))) - (offset (- (+ (- (descriptor-low fdefn) - sb!vm:other-pointer-type) - (* sb!vm:fdefn-raw-addr-slot sb!vm:word-bytes)) - (descriptor-low *nil-descriptor*))) - (desired (sb!vm:static-function-offset sym))) - (unless (= offset desired) - ;; FIXME: should be fatal - (warn "Offset from FDEFN ~S to ~S is ~D, not ~D." - sym nil offset desired)))))) + (offset (- (+ (- (descriptor-low fdefn) + sb!vm:other-pointer-lowtag) + (* sb!vm:fdefn-raw-addr-slot sb!vm:n-word-bytes)) + (descriptor-low *nil-descriptor*))) + (desired (sb!vm:static-fun-offset sym))) + (unless (= offset desired) + ;; FIXME: should be fatal + (error "Offset from FDEFN ~S to ~S is ~W, not ~W." + sym nil offset desired)))))) (defun list-all-fdefn-objects () (let ((result *nil-descriptor*)) - (maphash #'(lambda (key value) - (declare (ignore key)) - (cold-push value result)) - *cold-fdefn-objects*) + (maphash (lambda (key value) + (declare (ignore key)) + (cold-push value result)) + *cold-fdefn-objects*) result)) ;;;; fixups and related stuff @@ -1378,84 +1547,65 @@ (defvar *cold-foreign-symbol-table*) (declaim (type hash-table *cold-foreign-symbol-table*)) -(defun load-foreign-symbol-table (filename) +;; Read the sbcl.nm file to find the addresses for foreign-symbols in +;; the C runtime. +(defun load-cold-foreign-symbol-table (filename) + (/show "load-cold-foreign-symbol-table" filename) (with-open-file (file filename) - (loop - (let ((line (read-line file nil nil))) - (unless line - (return)) - ;; UNIX symbol tables might have tabs in them, and tabs are - ;; not in Common Lisp STANDARD-CHAR, so there seems to be no - ;; nice portable way to deal with them within Lisp, alas. - ;; Fortunately, it's easy to use UNIX command line tools like - ;; sed to remove the problem, so it's not too painful for us - ;; to push responsibility for converting tabs to spaces out to - ;; the caller. - ;; - ;; Other non-STANDARD-CHARs are problematic for the same reason. - ;; Make sure that there aren't any.. - (let ((ch (find-if (lambda (char) - (not (typep char 'standard-char))) - line))) - (when ch - (error "non-STANDARD-CHAR ~S found in foreign symbol table:~%~S" - ch - line))) - (setf line (string-trim '(#\space) line)) - (let ((p1 (position #\space line :from-end nil)) - (p2 (position #\space line :from-end t))) - (if (not (and p1 p2 (< p1 p2))) - ;; KLUDGE: It's too messy to try to understand all - ;; possible output from nm, so we just punt the lines we - ;; don't recognize. We realize that there's some chance - ;; that might get us in trouble someday, so we warn - ;; about it. - (warn "ignoring unrecognized line ~S in ~A" line filename) - (multiple-value-bind (value name) - (if (string= "0x" line :end2 2) - (values (parse-integer line :start 2 :end p1 :radix 16) - (subseq line (1+ p2))) - (values (parse-integer line :end p1 :radix 16) - (subseq line (1+ p2)))) - (multiple-value-bind (old-value found) - (gethash name *cold-foreign-symbol-table*) - (when (and found - (not (= old-value value))) - (warn "redefining ~S from #X~X to #X~X" - name old-value value))) - (setf (gethash name *cold-foreign-symbol-table*) value)))))) - (values))) - -(defun lookup-foreign-symbol (name) - #!+x86 - (let ((prefixes - #!+linux #(;; FIXME: How many of these are actually - ;; needed? The first four are taken from rather - ;; disorganized CMU CL code, which could easily - ;; have had redundant values in it.. - "_" - "__" - "__libc_" - "ldso_stub__" - ;; ..and the fifth seems to match most - ;; actual symbols, at least in RedHat 6.2. - "") - #!+freebsd #("" "ldso_stub__") - #!+openbsd #("_"))) - (or (some (lambda (prefix) - (gethash (concatenate 'string prefix name) - *cold-foreign-symbol-table* - nil)) - prefixes) - *foreign-symbol-placeholder-value* - (progn - (format *error-output* "~&The foreign symbol table is:~%") - (maphash (lambda (k v) - (format *error-output* "~&~S = #X~8X~%" k v)) - *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)")) + (loop for line = (read-line file nil nil) + while line do + ;; UNIX symbol tables might have tabs in them, and tabs are + ;; not in Common Lisp STANDARD-CHAR, so there seems to be no + ;; nice portable way to deal with them within Lisp, alas. + ;; Fortunately, it's easy to use UNIX command line tools like + ;; sed to remove the problem, so it's not too painful for us + ;; to push responsibility for converting tabs to spaces out to + ;; the caller. + ;; + ;; Other non-STANDARD-CHARs are problematic for the same reason. + ;; Make sure that there aren't any.. + (let ((ch (find-if (lambda (char) + (not (typep char 'standard-char))) + line))) + (when ch + (error "non-STANDARD-CHAR ~S found in foreign symbol table:~%~S" + ch + line))) + (setf line (string-trim '(#\space) line)) + (let ((p1 (position #\space line :from-end nil)) + (p2 (position #\space line :from-end t))) + (if (not (and p1 p2 (< p1 p2))) + ;; KLUDGE: It's too messy to try to understand all + ;; possible output from nm, so we just punt the lines we + ;; don't recognize. We realize that there's some chance + ;; that might get us in trouble someday, so we warn + ;; about it. + (warn "ignoring unrecognized line ~S in ~A" line filename) + (multiple-value-bind (value name) + (if (string= "0x" line :end2 2) + (values (parse-integer line :start 2 :end p1 :radix 16) + (subseq line (1+ p2))) + (values (parse-integer line :end p1 :radix 16) + (subseq line (1+ p2)))) + (multiple-value-bind (old-value found) + (gethash name *cold-foreign-symbol-table*) + (when (and found + (not (= old-value value))) + (warn "redefining ~S from #X~X to #X~X" + name old-value value))) + (/show "adding to *cold-foreign-symbol-table*:" name value) + (setf (gethash name *cold-foreign-symbol-table*) value)))))) + (values)) ;; PROGN + +(defun cold-foreign-symbol-address (name) + (or (find-foreign-symbol-in-table name *cold-foreign-symbol-table*) + *foreign-symbol-placeholder-value* + (progn + (format *error-output* "~&The foreign symbol table is:~%") + (maphash (lambda (k v) + (format *error-output* "~&~S = #X~8X~%" k v)) + *cold-foreign-symbol-table*) + (error "The foreign symbol ~S is undefined." name)))) (defvar *cold-assembler-routines*) @@ -1464,15 +1614,15 @@ (defun record-cold-assembler-routine (name address) (/xhow "in RECORD-COLD-ASSEMBLER-ROUTINE" name address) (push (cons name address) - *cold-assembler-routines*)) + *cold-assembler-routines*)) (defun record-cold-assembler-fixup (routine - code-object - offset - &optional - (kind :both)) + code-object + offset + &optional + (kind :both)) (push (list routine code-object offset kind) - *cold-assembler-fixups*)) + *cold-assembler-fixups*)) (defun lookup-assembler-reference (symbol) (let ((value (cdr (assoc symbol *cold-assembler-routines*)))) @@ -1484,37 +1634,37 @@ ;;; The x86 port needs to store code fixups along with code objects if ;;; they are to be moved, so fixups for code objects in the dynamic ;;; heap need to be noted. -#!+x86 +#!+(or x86 x86-64) (defvar *load-time-code-fixups*) -#!+x86 +#!+(or x86 x86-64) (defun note-load-time-code-fixup (code-object offset value kind) ;; If CODE-OBJECT might be moved (when (= (gspace-identifier (descriptor-intuit-gspace code-object)) - dynamic-space-id) + dynamic-core-space-id) ;; FIXME: pushed thing should be a structure, not just a list (push (list code-object offset value kind) *load-time-code-fixups*)) (values)) -#!+x86 +#!+(or x86 x86-64) (defun output-load-time-code-fixups () (dolist (fixups *load-time-code-fixups*) (let ((code-object (first fixups)) - (offset (second fixups)) - (value (third fixups)) - (kind (fourth fixups))) + (offset (second fixups)) + (value (third fixups)) + (kind (fourth fixups))) (cold-push (cold-cons - (cold-intern :load-time-code-fixup) - (cold-cons - code-object - (cold-cons - (number-to-core offset) - (cold-cons - (number-to-core value) - (cold-cons - (cold-intern kind) - *nil-descriptor*))))) - *current-reversed-cold-toplevels*)))) + (cold-intern :load-time-code-fixup) + (cold-cons + code-object + (cold-cons + (number-to-core offset) + (cold-cons + (number-to-core value) + (cold-cons + (cold-intern kind) + *nil-descriptor*))))) + *current-reversed-cold-toplevels*)))) ;;; Given a pointer to a code object and an offset relative to the ;;; tail of the code object's header, return an offset relative to the @@ -1527,309 +1677,314 @@ (declaim (ftype (function (descriptor sb!vm:word)) calc-offset)) (defun calc-offset (code-object offset-from-tail-of-header) (let* ((header (read-memory code-object)) - (header-n-words (ash (descriptor-bits header) (- sb!vm:type-bits))) - (header-n-bytes (ash header-n-words sb!vm:word-shift)) - (result (+ offset-from-tail-of-header header-n-bytes))) + (header-n-words (ash (descriptor-bits header) + (- sb!vm:n-widetag-bits))) + (header-n-bytes (ash header-n-words sb!vm:word-shift)) + (result (+ offset-from-tail-of-header header-n-bytes))) result)) (declaim (ftype (function (descriptor sb!vm:word sb!vm:word keyword)) - do-cold-fixup)) + do-cold-fixup)) (defun do-cold-fixup (code-object after-header value kind) (let* ((offset-within-code-object (calc-offset code-object after-header)) - (gspace-bytes (descriptor-bytes code-object)) - (gspace-byte-offset (+ (descriptor-byte-offset code-object) - offset-within-code-object)) - (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 + (gspace-bytes (descriptor-bytes code-object)) + (gspace-byte-offset (+ (descriptor-byte-offset code-object) + offset-within-code-object)) + (gspace-byte-address (gspace-byte-address + (descriptor-gspace code-object)))) + (ecase +backend-fasl-file-implementation+ + ;; See CMU CL source for other formerly-supported architectures + ;; (and note that you have to rewrite them to use BVREF-X + ;; instead of SAP-REF). + (:alpha + (ecase kind + (:jmp-hint + (assert (zerop (ldb (byte 2 0) value)))) + (: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 (bvref-8 gspace-bytes gspace-byte-offset) + (ldb (byte 8 48) value) + (bvref-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 (bvref-8 gspace-bytes gspace-byte-offset) + (ldb (byte 8 32) value) + (bvref-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 (bvref-8 gspace-bytes gspace-byte-offset) + (ldb (byte 8 16) value) + (bvref-8 gspace-bytes (1+ gspace-byte-offset)) + (ldb (byte 8 24) value)))) + (:lda + (setf (bvref-8 gspace-bytes gspace-byte-offset) + (ldb (byte 8 0) value) + (bvref-8 gspace-bytes (1+ gspace-byte-offset)) + (ldb (byte 8 8) value))))) + (:hppa (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)))) - (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) + (:load + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (logior (ash (ldb (byte 11 0) value) 1) + (logand (bvref-32 gspace-bytes gspace-byte-offset) + #xffffc000)))) + (:load-short + (let ((low-bits (ldb (byte 11 0) value))) + (assert (<= 0 low-bits (1- (ash 1 4)))) + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (logior (ash low-bits 17) + (logand (bvref-32 gspace-bytes gspace-byte-offset) + #xffe0ffff))))) + (:hi + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (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 (bvref-32 gspace-bytes gspace-byte-offset) + #xffe00000)))) + (:branch + (let ((bits (ldb (byte 9 2) value))) + (assert (zerop (ldb (byte 2 0) value))) + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (logior (ash bits 3) + (logand (bvref-32 gspace-bytes gspace-byte-offset) + #xffe0e002))))))) + (:mips (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)))) - (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)))))) - |# - (: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)))) - (ecase kind - (:absolute - (let ((fixed-up (+ value un-fixed-up))) - (setf (byte-vector-ref-32 gspace-bytes gspace-byte-offset) - fixed-up) - ;; comment from CMU CL sources: - ;; - ;; Note absolute fixups that point within the object. - ;; KLUDGE: There seems to be an implicit assumption in - ;; the old CMU CL code here, that if it doesn't point - ;; before the object, it must point within the object - ;; (not beyond it). It would be good to add an - ;; explanation of why that's true, or an assertion that - ;; it's really true, or both. - (unless (< fixed-up code-object-start-addr) - (note-load-time-code-fixup code-object - after-header - value - kind)))) - (:relative ; (used for arguments to X86 relative CALL instruction) - (let ((fixed-up (- (+ value un-fixed-up) - gspace-byte-address - gspace-byte-offset - sb!vm:word-bytes))) ; length of CALL argument - (setf (byte-vector-ref-32 gspace-bytes gspace-byte-offset) - fixed-up) - ;; Note relative fixups that point outside the code - ;; object, which is to say all relative fixups, since - ;; relative addressing within a code object never needs - ;; a fixup. - (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 + (:jump + (assert (zerop (ash value -28))) + (setf (ldb (byte 26 0) + (bvref-32 gspace-bytes gspace-byte-offset)) + (ash value -2))) + (:lui + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (logior (mask-field (byte 16 16) + (bvref-32 gspace-bytes gspace-byte-offset)) + (+ (ash value -16) + (if (logbitp 15 value) 1 0))))) + (:addi + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (logior (mask-field (byte 16 16) + (bvref-32 gspace-bytes gspace-byte-offset)) + (ldb (byte 16 0) value)))))) + (:ppc (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 + (:ba + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (dpb (ash value -2) (byte 24 2) + (bvref-32 gspace-bytes gspace-byte-offset)))) + (:ha + (let* ((h (ldb (byte 16 16) value)) + (l (ldb (byte 16 0) value))) + (setf (bvref-16 gspace-bytes (+ gspace-byte-offset 2)) + (if (logbitp 15 l) (ldb (byte 16 0) (1+ h)) h)))) + (:l + (setf (bvref-16 gspace-bytes (+ gspace-byte-offset 2)) + (ldb (byte 16 0) value))))) + (:sparc (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))))) - |# - )) + (:call + (error "can't deal with call fixups yet")) + (:sethi + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (dpb (ldb (byte 22 10) value) + (byte 22 0) + (bvref-32 gspace-bytes gspace-byte-offset)))) + (:add + (setf (bvref-32 gspace-bytes gspace-byte-offset) + (dpb (ldb (byte 10 0) value) + (byte 10 0) + (bvref-32 gspace-bytes gspace-byte-offset)))))) + ((:x86 :x86-64) + (let* ((un-fixed-up (bvref-word 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)))) + (ecase kind + (:absolute + (let ((fixed-up (+ value un-fixed-up))) + (setf (bvref-32 gspace-bytes gspace-byte-offset) + fixed-up) + ;; comment from CMU CL sources: + ;; + ;; Note absolute fixups that point within the object. + ;; KLUDGE: There seems to be an implicit assumption in + ;; the old CMU CL code here, that if it doesn't point + ;; before the object, it must point within the object + ;; (not beyond it). It would be good to add an + ;; explanation of why that's true, or an assertion that + ;; it's really true, or both. + (unless (< fixed-up code-object-start-addr) + (note-load-time-code-fixup code-object + after-header + value + kind)))) + (:relative ; (used for arguments to X86 relative CALL instruction) + (let ((fixed-up (- (+ value un-fixed-up) + gspace-byte-address + gspace-byte-offset + 4))) ; "length of CALL argument" + (setf (bvref-32 gspace-bytes gspace-byte-offset) + fixed-up) + ;; Note relative fixups that point outside the code + ;; object, which is to say all relative fixups, since + ;; relative addressing within a code object never needs + ;; a fixup. + (note-load-time-code-fixup code-object + after-header + value + kind)))))))) (values)) (defun resolve-assembler-fixups () (dolist (fixup *cold-assembler-fixups*) (let* ((routine (car fixup)) - (value (lookup-assembler-reference routine))) + (value (lookup-assembler-reference routine))) (when value - (do-cold-fixup (second fixup) (third fixup) value (fourth fixup)))))) + (do-cold-fixup (second fixup) (third fixup) value (fourth fixup)))))) -(defun linkage-info-to-core () +;;; *COLD-FOREIGN-SYMBOL-TABLE* becomes *!INITIAL-FOREIGN-SYMBOLS* in +;;; the core. When the core is loaded, !LOADER-COLD-INIT uses this to +;;; create *STATIC-FOREIGN-SYMBOLS*, which the code in +;;; target-load.lisp refers to. +(defun foreign-symbols-to-core () (let ((result *nil-descriptor*)) - (maphash #'(lambda (symbol value) - (cold-push (cold-cons (string-to-core symbol) - (number-to-core value)) - result)) - *cold-foreign-symbol-table*) - (cold-set (cold-intern '*!initial-foreign-symbols*) result)) + (maphash (lambda (symbol value) + (cold-push (cold-cons (base-string-to-core symbol) + (number-to-core value)) + result)) + *cold-foreign-symbol-table*) + (cold-set (cold-intern 'sb!kernel:*!initial-foreign-symbols*) result)) (let ((result *nil-descriptor*)) (dolist (rtn *cold-assembler-routines*) (cold-push (cold-cons (cold-intern (car rtn)) - (number-to-core (cdr rtn))) - result)) + (number-to-core (cdr rtn))) + result)) (cold-set (cold-intern '*!initial-assembler-routines*) result))) + ;;;; general machinery for cold-loading FASL files -(defvar *cold-fop-functions* (replace (make-array 256) *fop-functions*) - #!+sb-doc - "FOP functions for cold loading") - -(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. -(defmacro define-cold-fop ((name &optional (pushp t)) &rest forms) - (check-type pushp (member nil t :nope)) +;;; FOP functions for cold loading +(defvar *cold-fop-funs* + ;; We start out with a copy of the ordinary *FOP-FUNS*. The ones + ;; which aren't appropriate for cold load will be destructively + ;; modified. + (copy-seq *fop-funs*)) + +(defvar *normal-fop-funs*) + +;;; 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-FUNS* vector, +;;; instead of storing in the *FOP-FUNS* vector. +(defmacro define-cold-fop ((name &key (pushp t) (stackp t)) &rest forms) + (aver (member pushp '(nil t))) + (aver (member stackp '(nil t))) (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 (defun ,fname () - ,@(if (eq pushp :nope) - forms - `((with-fop-stack ,pushp ,@forms)))) - (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)) + ,@(if stackp + `((with-fop-stack ,pushp ,@forms)) + forms)) + (setf (svref *cold-fop-funs* ,code) #',fname)))) + +(defmacro clone-cold-fop ((name &key (pushp t) (stackp t)) + (small-name) + &rest forms) + (aver (member pushp '(nil t))) + (aver (member stackp '(nil t))) `(progn - (macrolet ((clone-arg () '(read-arg 4))) - (define-cold-fop (,name ,pushp) ,@forms)) - (macrolet ((clone-arg () '(read-arg 1))) - (define-cold-fop (,small-name ,pushp) ,@forms)))) + (macrolet ((clone-arg () '(read-word-arg))) + (define-cold-fop (,name :pushp ,pushp :stackp ,stackp) ,@forms)) + (macrolet ((clone-arg () '(read-byte-arg))) + (define-cold-fop (,small-name :pushp ,pushp :stackp ,stackp) ,@forms)))) ;;; Cause a fop to be undefined in cold load. (defmacro not-cold-fop (name) `(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." - (let* ((*normal-fop-functions* *fop-functions*) - (*fop-functions* *cold-fop-functions*) - (*cold-load-filename* (etypecase filename - (string filename) - (pathname (namestring filename))))) + (let* ((*normal-fop-funs* *fop-funs*) + (*fop-funs* *cold-fop-funs*) + (*cold-load-filename* (etypecase filename + (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)))) ;;;; miscellaneous cold fops (define-cold-fop (fop-misc-trap) *unbound-marker*) -(define-cold-fop (fop-character) - (make-character-descriptor (read-arg 3))) (define-cold-fop (fop-short-character) - (make-character-descriptor (read-arg 1))) + (make-character-descriptor (read-byte-arg))) (define-cold-fop (fop-empty-list) *nil-descriptor*) (define-cold-fop (fop-truth) (cold-intern t)) -(define-cold-fop (fop-normal-load :nope) - (setq *fop-functions* *normal-fop-functions*)) +(define-cold-fop (fop-normal-load :stackp nil) + (setq *fop-funs* *normal-fop-funs*)) -(define-fop (fop-maybe-cold-load 82 :nope) +(define-fop (fop-maybe-cold-load 82 :stackp nil) (when *cold-load-filename* - (setq *fop-functions* *cold-fop-functions*))) + (setq *fop-funs* *cold-fop-funs*))) -(define-cold-fop (fop-maybe-cold-load :nope)) +(define-cold-fop (fop-maybe-cold-load :stackp nil)) (clone-cold-fop (fop-struct) - (fop-small-struct) + (fop-small-struct) (let* ((size (clone-arg)) - (result (allocate-boxed-object *dynamic* - (1+ size) - sb!vm:instance-pointer-type))) + (result (allocate-boxed-object *dynamic* + (1+ size) + sb!vm:instance-pointer-lowtag)) + (layout (pop-stack)) + (nuntagged + (descriptor-fixnum + (read-wordindexed layout (+ sb!vm:instance-slots-offset 16)))) + (ntagged (- size nuntagged))) (write-memory result (make-other-immediate-descriptor - size - sb!vm:instance-header-type)) - (do ((index (1- size) (1- index))) - ((minusp index)) + size sb!vm:instance-header-widetag)) + (write-wordindexed result sb!vm:instance-slots-offset layout) + (do ((index 1 (1+ index))) + ((eql index size)) (declare (fixnum index)) (write-wordindexed result - (+ index sb!vm:instance-slots-offset) - (pop-stack))) + (+ index sb!vm:instance-slots-offset) + (if (>= index ntagged) + (descriptor-word-sized-integer (pop-stack)) + (pop-stack)))) result)) (define-cold-fop (fop-layout) - (let* ((length-des (pop-stack)) - (depthoid-des (pop-stack)) - (cold-inherits (pop-stack)) - (name (pop-stack)) - (old (gethash name *cold-layouts*))) + (let* ((nuntagged-des (pop-stack)) + (length-des (pop-stack)) + (depthoid-des (pop-stack)) + (cold-inherits (pop-stack)) + (name (pop-stack)) + (old (gethash name *cold-layouts*))) (declare (type descriptor length-des depthoid-des cold-inherits)) (declare (type symbol name)) ;; If a layout of this name has been defined already @@ -1837,81 +1992,90 @@ ;; Enforce consistency between the previous definition and the ;; current definition, then return the previous definition. (destructuring-bind - ;; FIXME: This would be more maintainable if we used - ;; DEFSTRUCT (:TYPE LIST) to define COLD-LAYOUT. -- WHN 19990825 - (old-layout-descriptor - old-name - old-length - old-inherits-list - old-depthoid) - old - (declare (type descriptor old-layout-descriptor)) - (declare (type index old-length)) - (declare (type fixnum old-depthoid)) - (declare (type list old-inherits-list)) - (assert (eq name old-name)) - (let ((length (descriptor-fixnum length-des)) - (inherits-list (listify-cold-inherits cold-inherits)) - (depthoid (descriptor-fixnum depthoid-des))) - (unless (= length old-length) - (error "cold loading a reference to class ~S when the compile~%~ - time length was ~S and current length is ~S" - name - length - old-length)) - (unless (equal inherits-list old-inherits-list) - (error "cold loading a reference to class ~S when the compile~%~ - time inherits were ~S~%~ - and current inherits are ~S" - name - inherits-list - old-inherits-list)) - (unless (= depthoid old-depthoid) - (error "cold loading a reference to class ~S when the compile~%~ - time inheritance depthoid was ~S and current inheritance~%~ - depthoid is ~S" - name - depthoid - old-depthoid))) - old-layout-descriptor) + ;; FIXME: This would be more maintainable if we used + ;; DEFSTRUCT (:TYPE LIST) to define COLD-LAYOUT. -- WHN 19990825 + (old-layout-descriptor + old-name + old-length + old-inherits-list + old-depthoid + old-nuntagged) + old + (declare (type descriptor old-layout-descriptor)) + (declare (type index old-length old-nuntagged)) + (declare (type fixnum old-depthoid)) + (declare (type list old-inherits-list)) + (aver (eq name old-name)) + (let ((length (descriptor-fixnum length-des)) + (inherits-list (listify-cold-inherits cold-inherits)) + (depthoid (descriptor-fixnum depthoid-des)) + (nuntagged (descriptor-fixnum nuntagged-des))) + (unless (= length old-length) + (error "cold loading a reference to class ~S when the compile~%~ + time length was ~S and current length is ~S" + name + length + old-length)) + (unless (equal inherits-list old-inherits-list) + (error "cold loading a reference to class ~S when the compile~%~ + time inherits were ~S~%~ + and current inherits are ~S" + name + inherits-list + old-inherits-list)) + (unless (= depthoid old-depthoid) + (error "cold loading a reference to class ~S when the compile~%~ + time inheritance depthoid was ~S and current inheritance~%~ + depthoid is ~S" + name + depthoid + old-depthoid)) + (unless (= nuntagged old-nuntagged) + (error "cold loading a reference to class ~S when the compile~%~ + time number of untagged slots was ~S and is currently ~S" + name + nuntagged + old-nuntagged))) + old-layout-descriptor) ;; Make a new definition from scratch. - (make-cold-layout name length-des cold-inherits depthoid-des)))) + (make-cold-layout name length-des cold-inherits depthoid-des + nuntagged-des)))) ;;;; cold fops for loading symbols -;;; Load a symbol SIZE characters long from *FASL-FILE* and intern -;;; that symbol in PACKAGE. +;;; Load a symbol SIZE characters long from *FASL-INPUT-STREAM* and +;;; intern that symbol in PACKAGE. (defun cold-load-symbol (size package) (let ((string (make-string size))) - (read-string-as-bytes *fasl-file* string) - (cold-intern (intern string package) package))) + (read-string-as-bytes *fasl-input-stream* string) + (cold-intern (intern string package)))) (macrolet ((frob (name pname-len package-len) - `(define-cold-fop (,name) - (let ((index (read-arg ,package-len))) - (push-fop-table - (cold-load-symbol (read-arg ,pname-len) - (svref *current-fop-table* index))))))) - (frob fop-symbol-in-package-save 4 4) - (frob fop-small-symbol-in-package-save 1 4) - (frob fop-symbol-in-byte-package-save 4 1) + `(define-cold-fop (,name) + (let ((index (read-arg ,package-len))) + (push-fop-table + (cold-load-symbol (read-arg ,pname-len) + (svref *current-fop-table* index))))))) + (frob fop-symbol-in-package-save #.sb!vm:n-word-bytes #.sb!vm:n-word-bytes) + (frob fop-small-symbol-in-package-save 1 #.sb!vm:n-word-bytes) + (frob fop-symbol-in-byte-package-save #.sb!vm:n-word-bytes 1) (frob fop-small-symbol-in-byte-package-save 1 1)) (clone-cold-fop (fop-lisp-symbol-save) - (fop-lisp-small-symbol-save) + (fop-lisp-small-symbol-save) (push-fop-table (cold-load-symbol (clone-arg) *cl-package*))) (clone-cold-fop (fop-keyword-symbol-save) - (fop-keyword-small-symbol-save) + (fop-keyword-small-symbol-save) (push-fop-table (cold-load-symbol (clone-arg) *keyword-package*))) (clone-cold-fop (fop-uninterned-symbol-save) - (fop-uninterned-small-symbol-save) + (fop-uninterned-small-symbol-save) (let* ((size (clone-arg)) - (name (make-string size))) - (read-string-as-bytes *fasl-file* name) - (let ((symbol (allocate-symbol name))) - (push-fop-table symbol)))) + (name (make-string size))) + (read-string-as-bytes *fasl-input-stream* name) + (let ((symbol-des (allocate-symbol name))) + (push-fop-table symbol-des)))) ;;;; cold fops for loading lists @@ -1919,14 +2083,14 @@ ;;; cdr of the list is set to LAST. (defmacro cold-stack-list (length last) `(do* ((index ,length (1- index)) - (result ,last (cold-cons (pop-stack) result))) - ((= index 0) result) + (result ,last (cold-cons (pop-stack) result))) + ((= index 0) result) (declare (fixnum index)))) (define-cold-fop (fop-list) - (cold-stack-list (read-arg 1) *nil-descriptor*)) + (cold-stack-list (read-byte-arg) *nil-descriptor*)) (define-cold-fop (fop-list*) - (cold-stack-list (read-arg 1) (pop-stack))) + (cold-stack-list (read-byte-arg) (pop-stack))) (define-cold-fop (fop-list-1) (cold-stack-list 1 *nil-descriptor*)) (define-cold-fop (fop-list-2) @@ -1962,64 +2126,82 @@ ;;;; cold fops for loading vectors -(clone-cold-fop (fop-string) - (fop-small-string) +(clone-cold-fop (fop-base-string) + (fop-small-base-string) (let* ((len (clone-arg)) - (string (make-string len))) - (read-string-as-bytes *fasl-file* string) - (string-to-core string))) + (string (make-string len))) + (read-string-as-bytes *fasl-input-stream* string) + (base-string-to-core string))) + +#!+sb-unicode +(clone-cold-fop (fop-character-string) + (fop-small-character-string) + (bug "CHARACTER-STRING dumped by cross-compiler.")) (clone-cold-fop (fop-vector) - (fop-small-vector) + (fop-small-vector) (let* ((size (clone-arg)) - (result (allocate-vector-object *dynamic* - sb!vm:word-bits - size - sb!vm:simple-vector-type))) + (result (allocate-vector-object *dynamic* + sb!vm:n-word-bits + size + sb!vm:simple-vector-widetag))) (do ((index (1- size) (1- index))) - ((minusp index)) + ((minusp index)) (declare (fixnum index)) (write-wordindexed result - (+ index sb!vm:vector-data-offset) - (pop-stack))) + (+ index sb!vm:vector-data-offset) + (pop-stack))) result)) (define-cold-fop (fop-int-vector) - (let* ((len (read-arg 4)) - (sizebits (read-arg 1)) - (type (case sizebits - (1 sb!vm:simple-bit-vector-type) - (2 sb!vm:simple-array-unsigned-byte-2-type) - (4 sb!vm:simple-array-unsigned-byte-4-type) - (8 sb!vm:simple-array-unsigned-byte-8-type) - (16 sb!vm:simple-array-unsigned-byte-16-type) - (32 sb!vm:simple-array-unsigned-byte-32-type) - (t (error "losing element size: ~D" sizebits)))) - (result (allocate-vector-object *dynamic* sizebits len type)) - (start (+ (descriptor-byte-offset result) - (ash sb!vm:vector-data-offset sb!vm:word-shift))) - (end (+ start - (ceiling (* len sizebits) - sb!vm:byte-bits)))) - (read-sequence-or-die (descriptor-bytes result) - *fasl-file* - :start start - :end end) + (let* ((len (read-word-arg)) + (sizebits (read-byte-arg)) + (type (case sizebits + (0 sb!vm:simple-array-nil-widetag) + (1 sb!vm:simple-bit-vector-widetag) + (2 sb!vm:simple-array-unsigned-byte-2-widetag) + (4 sb!vm:simple-array-unsigned-byte-4-widetag) + (7 (prog1 sb!vm:simple-array-unsigned-byte-7-widetag + (setf sizebits 8))) + (8 sb!vm:simple-array-unsigned-byte-8-widetag) + (15 (prog1 sb!vm:simple-array-unsigned-byte-15-widetag + (setf sizebits 16))) + (16 sb!vm:simple-array-unsigned-byte-16-widetag) + (31 (prog1 sb!vm:simple-array-unsigned-byte-31-widetag + (setf sizebits 32))) + (32 sb!vm:simple-array-unsigned-byte-32-widetag) + #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or)) + (63 (prog1 sb!vm:simple-array-unsigned-byte-63-widetag + (setf sizebits 64))) + #!+#.(cl:if (cl:= 64 sb!vm:n-word-bits) '(and) '(or)) + (64 sb!vm:simple-array-unsigned-byte-64-widetag) + (t (error "losing element size: ~W" sizebits)))) + (result (allocate-vector-object *dynamic* sizebits len type)) + (start (+ (descriptor-byte-offset result) + (ash sb!vm:vector-data-offset sb!vm:word-shift))) + (end (+ start + (ceiling (* len sizebits) + sb!vm:n-byte-bits)))) + (read-bigvec-as-sequence-or-die (descriptor-bytes result) + *fasl-input-stream* + :start start + :end end) result)) (define-cold-fop (fop-single-float-vector) - (let* ((len (read-arg 4)) - (result (allocate-vector-object *dynamic* - sb!vm:word-bits - len - sb!vm:simple-array-single-float-type)) - (start (+ (descriptor-byte-offset result) - (ash sb!vm:vector-data-offset sb!vm:word-shift))) - (end (+ start (* len sb!vm:word-bytes)))) - (read-sequence-or-die (descriptor-bytes result) - *fasl-file* - :start start - :end end) + (let* ((len (read-word-arg)) + (result (allocate-vector-object + *dynamic* + sb!vm:n-word-bits + len + sb!vm:simple-array-single-float-widetag)) + (start (+ (descriptor-byte-offset result) + (ash sb!vm:vector-data-offset sb!vm:word-shift))) + (end (+ start (* len 4)))) + (read-bigvec-as-sequence-or-die (descriptor-bytes result) + *fasl-input-stream* + :start start + :end end) result)) (not-cold-fop fop-double-float-vector) @@ -2029,42 +2211,44 @@ #!+long-float (not-cold-fop fop-complex-long-float-vector) (define-cold-fop (fop-array) - (let* ((rank (read-arg 4)) - (data-vector (pop-stack)) - (result (allocate-boxed-object *dynamic* - (+ sb!vm:array-dimensions-offset rank) - sb!vm:other-pointer-type))) + (let* ((rank (read-word-arg)) + (data-vector (pop-stack)) + (result (allocate-boxed-object *dynamic* + (+ sb!vm:array-dimensions-offset rank) + sb!vm:other-pointer-lowtag))) (write-memory result - (make-other-immediate-descriptor rank - sb!vm:simple-array-type)) + (make-other-immediate-descriptor rank + sb!vm:simple-array-widetag)) (write-wordindexed result sb!vm:array-fill-pointer-slot *nil-descriptor*) (write-wordindexed result sb!vm:array-data-slot data-vector) (write-wordindexed result sb!vm:array-displacement-slot *nil-descriptor*) (write-wordindexed result sb!vm:array-displaced-p-slot *nil-descriptor*) (let ((total-elements 1)) (dotimes (axis rank) - (let ((dim (pop-stack))) - (unless (or (= (descriptor-lowtag dim) sb!vm:even-fixnum-type) - (= (descriptor-lowtag dim) sb!vm:odd-fixnum-type)) - (error "non-fixnum dimension? (~S)" dim)) - (setf total-elements - (* total-elements - (logior (ash (descriptor-high dim) - (- descriptor-low-bits (1- sb!vm:lowtag-bits))) - (ash (descriptor-low dim) - (- 1 sb!vm:lowtag-bits))))) - (write-wordindexed result - (+ sb!vm:array-dimensions-offset axis) - dim))) + (let ((dim (pop-stack))) + (unless (or (= (descriptor-lowtag dim) sb!vm:even-fixnum-lowtag) + (= (descriptor-lowtag dim) sb!vm:odd-fixnum-lowtag)) + (error "non-fixnum dimension? (~S)" dim)) + (setf total-elements + (* total-elements + (logior (ash (descriptor-high dim) + (- descriptor-low-bits + (1- sb!vm:n-lowtag-bits))) + (ash (descriptor-low dim) + (- 1 sb!vm:n-lowtag-bits))))) + (write-wordindexed result + (+ sb!vm:array-dimensions-offset axis) + dim))) (write-wordindexed result - sb!vm:array-elements-slot - (make-fixnum-descriptor total-elements))) + sb!vm:array-elements-slot + (make-fixnum-descriptor total-elements))) result)) + ;;;; cold fops for loading numbers (defmacro define-cold-number-fop (fop) - `(define-cold-fop (,fop :nope) + `(define-cold-fop (,fop :stackp nil) ;; Invoke the ordinary warm version of this fop to push the ;; number. (,fop) @@ -2072,7 +2256,7 @@ ;; fop result. (with-fop-stack t (let ((number (pop-stack))) - (number-to-core number))))) + (number-to-core number))))) (define-cold-number-fop fop-single-float) (define-cold-number-fop fop-double-float) @@ -2083,124 +2267,13 @@ (define-cold-number-fop fop-complex-single-float) (define-cold-number-fop fop-complex-double-float) -#!+long-float -(define-cold-fop (fop-long-float) - (ecase sb!c:*backend-fasl-file-implementation* - (:x86 ; 80 bit long-float format - (prepare-for-fast-read-byte *fasl-file* - (let* ((des (allocate-unboxed-object *dynamic* sb!vm:word-bits - (1- sb!vm:long-float-size) - sb!vm:long-float-type)) - (low-bits (make-random-descriptor (fast-read-u-integer 4))) - (high-bits (make-random-descriptor (fast-read-u-integer 4))) - (exp-bits (make-random-descriptor (fast-read-s-integer 2)))) - (done-with-fast-read-byte) - (write-wordindexed des sb!vm:long-float-value-slot low-bits) - (write-wordindexed des (1+ sb!vm:long-float-value-slot) high-bits) - (write-wordindexed des (+ 2 sb!vm:long-float-value-slot) exp-bits) - des))) - ;; This was supported in CMU CL, but isn't currently supported in - ;; SBCL. - #+nil - (#.sb!c:sparc-fasl-file-implementation ; 128 bit long-float format - (prepare-for-fast-read-byte *fasl-file* - (let* ((des (allocate-unboxed-object *dynamic* sb!vm:word-bits - (1- sb!vm:long-float-size) - sb!vm:long-float-type)) - (low-bits (make-random-descriptor (fast-read-u-integer 4))) - (mid-bits (make-random-descriptor (fast-read-u-integer 4))) - (high-bits (make-random-descriptor (fast-read-u-integer 4))) - (exp-bits (make-random-descriptor (fast-read-s-integer 4)))) - (done-with-fast-read-byte) - (write-wordindexed des sb!vm:long-float-value-slot exp-bits) - (write-wordindexed des (1+ sb!vm:long-float-value-slot) high-bits) - (write-wordindexed des (+ 2 sb!vm:long-float-value-slot) mid-bits) - (write-wordindexed des (+ 3 sb!vm:long-float-value-slot) low-bits) - des))))) - -#!+long-float -(define-cold-fop (fop-complex-long-float) - (ecase sb!c:*backend-fasl-file-implementation* - (:x86 ; 80 bit long-float format - (prepare-for-fast-read-byte *fasl-file* - (let* ((des (allocate-unboxed-object *dynamic* sb!vm:word-bits - (1- sb!vm:complex-long-float-size) - sb!vm:complex-long-float-type)) - (real-low-bits (make-random-descriptor (fast-read-u-integer 4))) - (real-high-bits (make-random-descriptor (fast-read-u-integer 4))) - (real-exp-bits (make-random-descriptor (fast-read-s-integer 2))) - (imag-low-bits (make-random-descriptor (fast-read-u-integer 4))) - (imag-high-bits (make-random-descriptor (fast-read-u-integer 4))) - (imag-exp-bits (make-random-descriptor (fast-read-s-integer 2)))) - (done-with-fast-read-byte) - (write-wordindexed des - sb!vm:complex-long-float-real-slot - real-low-bits) - (write-wordindexed des - (1+ sb!vm:complex-long-float-real-slot) - real-high-bits) - (write-wordindexed des - (+ 2 sb!vm:complex-long-float-real-slot) - real-exp-bits) - (write-wordindexed des - sb!vm:complex-long-float-imag-slot - imag-low-bits) - (write-wordindexed des - (1+ sb!vm:complex-long-float-imag-slot) - imag-high-bits) - (write-wordindexed des - (+ 2 sb!vm:complex-long-float-imag-slot) - imag-exp-bits) - des))) - ;; This was supported in CMU CL, but isn't currently supported in SBCL. - #+nil - (#.sb!c:sparc-fasl-file-implementation ; 128 bit long-float format - (prepare-for-fast-read-byte *fasl-file* - (let* ((des (allocate-unboxed-object *dynamic* sb!vm:word-bits - (1- sb!vm:complex-long-float-size) - sb!vm:complex-long-float-type)) - (real-low-bits (make-random-descriptor (fast-read-u-integer 4))) - (real-mid-bits (make-random-descriptor (fast-read-u-integer 4))) - (real-high-bits (make-random-descriptor (fast-read-u-integer 4))) - (real-exp-bits (make-random-descriptor (fast-read-s-integer 4))) - (imag-low-bits (make-random-descriptor (fast-read-u-integer 4))) - (imag-mid-bits (make-random-descriptor (fast-read-u-integer 4))) - (imag-high-bits (make-random-descriptor (fast-read-u-integer 4))) - (imag-exp-bits (make-random-descriptor (fast-read-s-integer 4)))) - (done-with-fast-read-byte) - (write-wordindexed des - sb!vm:complex-long-float-real-slot - real-exp-bits) - (write-wordindexed des - (1+ sb!vm:complex-long-float-real-slot) - real-high-bits) - (write-wordindexed des - (+ 2 sb!vm:complex-long-float-real-slot) - real-mid-bits) - (write-wordindexed des - (+ 3 sb!vm:complex-long-float-real-slot) - real-low-bits) - (write-wordindexed des - sb!vm:complex-long-float-real-slot - imag-exp-bits) - (write-wordindexed des - (1+ sb!vm:complex-long-float-real-slot) - imag-high-bits) - (write-wordindexed des - (+ 2 sb!vm:complex-long-float-real-slot) - imag-mid-bits) - (write-wordindexed des - (+ 3 sb!vm:complex-long-float-real-slot) - imag-low-bits) - des))))) - (define-cold-fop (fop-ratio) (let ((den (pop-stack))) - (number-pair-to-core (pop-stack) den sb!vm:ratio-type))) + (number-pair-to-core (pop-stack) den sb!vm:ratio-widetag))) (define-cold-fop (fop-complex) (let ((im (pop-stack))) - (number-pair-to-core (pop-stack) im sb!vm:complex-type))) + (number-pair-to-core (pop-stack) im sb!vm:complex-widetag))) ;;;; cold fops for calling (or not calling) @@ -2210,62 +2283,64 @@ (defvar *load-time-value-counter*) (define-cold-fop (fop-funcall) - (unless (= (read-arg 1) 0) + (unless (= (read-byte-arg) 0) (error "You can't FOP-FUNCALL arbitrary stuff in cold load.")) (let ((counter *load-time-value-counter*)) (cold-push (cold-cons - (cold-intern :load-time-value) - (cold-cons - (pop-stack) - (cold-cons - (number-to-core counter) - *nil-descriptor*))) - *current-reversed-cold-toplevels*) + (cold-intern :load-time-value) + (cold-cons + (pop-stack) + (cold-cons + (number-to-core counter) + *nil-descriptor*))) + *current-reversed-cold-toplevels*) (setf *load-time-value-counter* (1+ counter)) (make-descriptor 0 0 nil counter))) (defun finalize-load-time-value-noise () - (cold-set (cold-intern 'sb!impl::*!load-time-values*) - (allocate-vector-object *dynamic* - sb!vm:word-bits - *load-time-value-counter* - sb!vm:simple-vector-type))) - -(define-cold-fop (fop-funcall-for-effect nil) - (if (= (read-arg 1) 0) + (cold-set (cold-intern '*!load-time-values*) + (allocate-vector-object *dynamic* + sb!vm:n-word-bits + *load-time-value-counter* + sb!vm:simple-vector-widetag))) + +(define-cold-fop (fop-funcall-for-effect :pushp nil) + (if (= (read-byte-arg) 0) (cold-push (pop-stack) - *current-reversed-cold-toplevels*) + *current-reversed-cold-toplevels*) (error "You can't FOP-FUNCALL arbitrary stuff in cold load."))) ;;;; cold fops for fixing up circularities -(define-cold-fop (fop-rplaca nil) - (let ((obj (svref *current-fop-table* (read-arg 4))) - (idx (read-arg 4))) +(define-cold-fop (fop-rplaca :pushp nil) + (let ((obj (svref *current-fop-table* (read-word-arg))) + (idx (read-word-arg))) (write-memory (cold-nthcdr idx obj) (pop-stack)))) -(define-cold-fop (fop-rplacd nil) - (let ((obj (svref *current-fop-table* (read-arg 4))) - (idx (read-arg 4))) +(define-cold-fop (fop-rplacd :pushp nil) + (let ((obj (svref *current-fop-table* (read-word-arg))) + (idx (read-word-arg))) (write-wordindexed (cold-nthcdr idx obj) 1 (pop-stack)))) -(define-cold-fop (fop-svset nil) - (let ((obj (svref *current-fop-table* (read-arg 4))) - (idx (read-arg 4))) +(define-cold-fop (fop-svset :pushp nil) + (let ((obj (svref *current-fop-table* (read-word-arg))) + (idx (read-word-arg))) (write-wordindexed obj - (+ idx - (ecase (descriptor-lowtag obj) - (#.sb!vm:instance-pointer-type 1) - (#.sb!vm:other-pointer-type 2))) - (pop-stack)))) - -(define-cold-fop (fop-structset nil) - (let ((obj (svref *current-fop-table* (read-arg 4))) - (idx (read-arg 4))) + (+ idx + (ecase (descriptor-lowtag obj) + (#.sb!vm:instance-pointer-lowtag 1) + (#.sb!vm:other-pointer-lowtag 2))) + (pop-stack)))) + +(define-cold-fop (fop-structset :pushp nil) + (let ((obj (svref *current-fop-table* (read-word-arg))) + (idx (read-word-arg))) (write-wordindexed obj (1+ idx) (pop-stack)))) -(define-cold-fop (fop-nthcdr t) - (cold-nthcdr (read-arg 4) (pop-stack))) +;;; In the original CMUCL code, this actually explicitly declared PUSHP +;;; to be T, even though that's what it defaults to in DEFINE-COLD-FOP. +(define-cold-fop (fop-nthcdr) + (cold-nthcdr (read-word-arg) (pop-stack))) (defun cold-nthcdr (index obj) (dotimes (i index) @@ -2274,10 +2349,22 @@ ;;;; cold fops for loading code objects and functions -(define-cold-fop (fop-fset nil) - (let ((fn (pop-stack)) - (name (pop-stack))) - (cold-fset name fn))) +;;; the names of things which have had COLD-FSET used on them already +;;; (used to make sure that we don't try to statically link a name to +;;; more than one definition) +(defparameter *cold-fset-warm-names* + ;; This can't be an EQL hash table because names can be conses, e.g. + ;; (SETF CAR). + (make-hash-table :test 'equal)) + +(define-cold-fop (fop-fset :pushp nil) + (let* ((fn (pop-stack)) + (cold-name (pop-stack)) + (warm-name (warm-fun-name cold-name))) + (if (gethash warm-name *cold-fset-warm-names*) + (error "duplicate COLD-FSET for ~S" warm-name) + (setf (gethash warm-name *cold-fset-warm-names*) t)) + (static-fset cold-name fn))) (define-cold-fop (fop-fdefinition) (cold-fdefinition-object (pop-stack))) @@ -2285,8 +2372,6 @@ (define-cold-fop (fop-sanctify-for-execution) (pop-stack)) -(not-cold-fop fop-make-byte-compiled-function) - ;;; Setting this variable shows what code looks like before any ;;; fixups (or function headers) are applied. #!+sb-show (defvar *show-pre-fixup-code-p* nil) @@ -2299,175 +2384,184 @@ (defmacro define-cold-code-fop (name nconst code-size) `(define-cold-fop (,name) (let* ((nconst ,nconst) - (code-size ,code-size) - (raw-header-n-words (+ sb!vm:code-trace-table-offset-slot nconst)) - (header-n-words - ;; Note: we round the number of constants up to ensure - ;; that the code vector will be properly aligned. - (round-up raw-header-n-words 2)) - (des (allocate-descriptor - ;; In the X86 with CGC, code can't be relocated, so - ;; we have to put it into static space. In all other - ;; configurations, code can go into dynamic space. - #!+(and x86 cgc) *static* ; KLUDGE: Why? -- WHN 19990907 - #!-(and x86 cgc) *dynamic* - (+ (ash header-n-words sb!vm:word-shift) code-size) - sb!vm:other-pointer-type))) + (code-size ,code-size) + (raw-header-n-words (+ sb!vm:code-trace-table-offset-slot nconst)) + (header-n-words + ;; Note: we round the number of constants up to ensure + ;; that the code vector will be properly aligned. + (round-up raw-header-n-words 2)) + (des (allocate-cold-descriptor *dynamic* + (+ (ash header-n-words + sb!vm:word-shift) + code-size) + sb!vm:other-pointer-lowtag))) (write-memory des - (make-other-immediate-descriptor header-n-words - sb!vm:code-header-type)) + (make-other-immediate-descriptor + header-n-words sb!vm:code-header-widetag)) (write-wordindexed des - sb!vm:code-code-size-slot - (make-fixnum-descriptor - (ash (+ code-size (1- (ash 1 sb!vm:word-shift))) - (- sb!vm:word-shift)))) + sb!vm:code-code-size-slot + (make-fixnum-descriptor + (ash (+ code-size (1- (ash 1 sb!vm:word-shift))) + (- sb!vm:word-shift)))) (write-wordindexed des sb!vm:code-entry-points-slot *nil-descriptor*) (write-wordindexed des sb!vm:code-debug-info-slot (pop-stack)) (when (oddp raw-header-n-words) - (write-wordindexed des - raw-header-n-words - (make-random-descriptor 0))) + (write-wordindexed des + raw-header-n-words + (make-random-descriptor 0))) (do ((index (1- raw-header-n-words) (1- index))) - ((< index sb!vm:code-trace-table-offset-slot)) - (write-wordindexed des index (pop-stack))) + ((< index sb!vm:code-trace-table-offset-slot)) + (write-wordindexed des index (pop-stack))) (let* ((start (+ (descriptor-byte-offset des) - (ash header-n-words sb!vm:word-shift))) - (end (+ start code-size))) - (read-sequence-or-die (descriptor-bytes des) - *fasl-file* - :start start - :end end) - #!+sb-show - (when *show-pre-fixup-code-p* - (format *trace-output* - "~&/raw code from code-fop ~D ~D:~%" - nconst - code-size) - (do ((i start (+ i sb!vm:word-bytes))) - ((>= i end)) - (format *trace-output* - "/#X~8,'0x: #X~8,'0x~%" - (+ i (gspace-byte-address (descriptor-gspace des))) - (byte-vector-ref-32 (descriptor-bytes des) i))))) + (ash header-n-words sb!vm:word-shift))) + (end (+ start code-size))) + (read-bigvec-as-sequence-or-die (descriptor-bytes des) + *fasl-input-stream* + :start start + :end end) + #!+sb-show + (when *show-pre-fixup-code-p* + (format *trace-output* + "~&/raw code from code-fop ~W ~W:~%" + nconst + code-size) + (do ((i start (+ i sb!vm:n-word-bytes))) + ((>= i end)) + (format *trace-output* + "/#X~8,'0x: #X~8,'0x~%" + (+ i (gspace-byte-address (descriptor-gspace des))) + (bvref-32 (descriptor-bytes des) i))))) des))) -(define-cold-code-fop fop-code (read-arg 4) (read-arg 4)) +(define-cold-code-fop fop-code (read-word-arg) (read-word-arg)) -(define-cold-code-fop fop-small-code (read-arg 1) (read-arg 2)) +(define-cold-code-fop fop-small-code (read-byte-arg) (read-halfword-arg)) -(clone-cold-fop (fop-alter-code nil) - (fop-byte-alter-code) +(clone-cold-fop (fop-alter-code :pushp nil) + (fop-byte-alter-code) (let ((slot (clone-arg)) - (value (pop-stack)) - (code (pop-stack))) + (value (pop-stack)) + (code (pop-stack))) (write-wordindexed code slot value))) -(define-cold-fop (fop-function-entry) +(define-cold-fop (fop-fun-entry) (let* ((type (pop-stack)) - (arglist (pop-stack)) - (name (pop-stack)) - (code-object (pop-stack)) - (offset (calc-offset code-object (read-arg 4))) - (fn (descriptor-beyond code-object - offset - sb!vm:function-pointer-type)) - (next (read-wordindexed code-object sb!vm:code-entry-points-slot))) + (arglist (pop-stack)) + (name (pop-stack)) + (code-object (pop-stack)) + (offset (calc-offset code-object (read-word-arg))) + (fn (descriptor-beyond code-object + offset + sb!vm:fun-pointer-lowtag)) + (next (read-wordindexed code-object sb!vm:code-entry-points-slot))) (unless (zerop (logand offset sb!vm:lowtag-mask)) - ;; FIXME: This should probably become a fatal error. - (warn "unaligned function entry: ~S at #X~X" name offset)) + (error "unaligned function entry: ~S at #X~X" name offset)) (write-wordindexed code-object sb!vm:code-entry-points-slot fn) (write-memory fn - (make-other-immediate-descriptor (ash offset - (- sb!vm:word-shift)) - sb!vm:function-header-type)) + (make-other-immediate-descriptor + (ash offset (- sb!vm:word-shift)) + sb!vm:simple-fun-header-widetag)) (write-wordindexed fn - sb!vm:function-self-slot - ;; KLUDGE: Wiring decisions like this in at - ;; this level ("if it's an x86") instead of a - ;; higher level of abstraction ("if it has such - ;; and such relocation peculiarities (which - ;; happen to be confined to the x86)") is bad. - ;; It would be nice if the code were instead - ;; conditional on some more descriptive - ;; feature, :STICKY-CODE or - ;; :LOAD-GC-INTERACTION or something. - ;; - ;; FIXME: The X86 definition of the function - ;; self slot breaks everything object.tex says - ;; about it. (As far as I can tell, the X86 - ;; definition makes it a pointer to the actual - ;; code instead of a pointer back to the object - ;; itself.) Ask on the mailing list whether - ;; this is documented somewhere, and if not, - ;; try to reverse engineer some documentation - ;; before release. - #!-x86 - ;; a pointer back to the function object, as - ;; described in CMU CL - ;; src/docs/internals/object.tex - fn - #!+x86 - ;; KLUDGE: a pointer to the actual code of the - ;; object, as described nowhere that I can find - ;; -- WHN 19990907 - (make-random-descriptor - (+ (descriptor-bits fn) - (- (ash sb!vm:function-code-offset sb!vm:word-shift) - ;; FIXME: We should mask out the type - ;; bits, not assume we know what they - ;; are and subtract them out this way. - sb!vm:function-pointer-type)))) - (write-wordindexed fn sb!vm:function-next-slot next) - (write-wordindexed fn sb!vm:function-name-slot name) - (write-wordindexed fn sb!vm:function-arglist-slot arglist) - (write-wordindexed fn sb!vm:function-type-slot type) + sb!vm:simple-fun-self-slot + ;; KLUDGE: Wiring decisions like this in at + ;; this level ("if it's an x86") instead of a + ;; higher level of abstraction ("if it has such + ;; and such relocation peculiarities (which + ;; happen to be confined to the x86)") is bad. + ;; It would be nice if the code were instead + ;; conditional on some more descriptive + ;; feature, :STICKY-CODE or + ;; :LOAD-GC-INTERACTION or something. + ;; + ;; FIXME: The X86 definition of the function + ;; self slot breaks everything object.tex says + ;; about it. (As far as I can tell, the X86 + ;; definition makes it a pointer to the actual + ;; code instead of a pointer back to the object + ;; itself.) Ask on the mailing list whether + ;; this is documented somewhere, and if not, + ;; try to reverse engineer some documentation. + #!-(or x86 x86-64) + ;; a pointer back to the function object, as + ;; described in CMU CL + ;; src/docs/internals/object.tex + fn + #!+(or x86 x86-64) + ;; KLUDGE: a pointer to the actual code of the + ;; object, as described nowhere that I can find + ;; -- WHN 19990907 + (make-random-descriptor + (+ (descriptor-bits fn) + (- (ash sb!vm:simple-fun-code-offset + sb!vm:word-shift) + ;; FIXME: We should mask out the type + ;; bits, not assume we know what they + ;; are and subtract them out this way. + sb!vm:fun-pointer-lowtag)))) + (write-wordindexed fn sb!vm:simple-fun-next-slot next) + (write-wordindexed fn sb!vm:simple-fun-name-slot name) + (write-wordindexed fn sb!vm:simple-fun-arglist-slot arglist) + (write-wordindexed fn sb!vm:simple-fun-type-slot type) fn)) (define-cold-fop (fop-foreign-fixup) (let* ((kind (pop-stack)) - (code-object (pop-stack)) - (len (read-arg 1)) - (sym (make-string len))) - (read-string-as-bytes *fasl-file* sym) - (let ((offset (read-arg 4)) - (value (lookup-foreign-symbol sym))) + (code-object (pop-stack)) + (len (read-byte-arg)) + (sym (make-string len))) + (read-string-as-bytes *fasl-input-stream* sym) + (let ((offset (read-word-arg)) + (value (cold-foreign-symbol-address sym))) (do-cold-fixup code-object offset value kind)) - code-object)) + code-object)) + +#!+linkage-table +(define-cold-fop (fop-foreign-dataref-fixup) + (let* ((kind (pop-stack)) + (code-object (pop-stack)) + (len (read-byte-arg)) + (sym (make-string len))) + (read-string-as-bytes *fasl-input-stream* sym) + (maphash (lambda (k v) + (format *error-output* "~&~S = #X~8X~%" k v)) + *cold-foreign-symbol-table*) + (error "shared foreign symbol in cold load: ~S (~S)" sym kind))) (define-cold-fop (fop-assembler-code) - (let* ((length (read-arg 4)) - (header-n-words - ;; Note: we round the number of constants up to ensure that - ;; the code vector will be properly aligned. - (round-up sb!vm:code-constants-offset 2)) - (des (allocate-descriptor *read-only* - (+ (ash header-n-words sb!vm:word-shift) - length) - sb!vm:other-pointer-type))) + (let* ((length (read-word-arg)) + (header-n-words + ;; Note: we round the number of constants up to ensure that + ;; the code vector will be properly aligned. + (round-up sb!vm:code-constants-offset 2)) + (des (allocate-cold-descriptor *read-only* + (+ (ash header-n-words + sb!vm:word-shift) + length) + sb!vm:other-pointer-lowtag))) (write-memory des - (make-other-immediate-descriptor header-n-words - sb!vm:code-header-type)) + (make-other-immediate-descriptor + header-n-words sb!vm:code-header-widetag)) (write-wordindexed des - sb!vm:code-code-size-slot - (make-fixnum-descriptor - (ash (+ length (1- (ash 1 sb!vm:word-shift))) - (- sb!vm:word-shift)))) + sb!vm:code-code-size-slot + (make-fixnum-descriptor + (ash (+ length (1- (ash 1 sb!vm:word-shift))) + (- sb!vm:word-shift)))) (write-wordindexed des sb!vm:code-entry-points-slot *nil-descriptor*) (write-wordindexed des sb!vm:code-debug-info-slot *nil-descriptor*) (let* ((start (+ (descriptor-byte-offset des) - (ash header-n-words sb!vm:word-shift))) - (end (+ start length))) - (read-sequence-or-die (descriptor-bytes des) - *fasl-file* - :start start - :end end)) + (ash header-n-words sb!vm:word-shift))) + (end (+ start length))) + (read-bigvec-as-sequence-or-die (descriptor-bytes des) + *fasl-input-stream* + :start start + :end end)) des)) (define-cold-fop (fop-assembler-routine) (let* ((routine (pop-stack)) - (des (pop-stack)) - (offset (calc-offset des (read-arg 4)))) + (des (pop-stack)) + (offset (calc-offset des (read-word-arg)))) (record-cold-assembler-routine routine (+ (logandc2 (descriptor-bits des) sb!vm:lowtag-mask) offset)) @@ -2475,223 +2569,293 @@ (define-cold-fop (fop-assembler-fixup) (let* ((routine (pop-stack)) - (kind (pop-stack)) - (code-object (pop-stack)) - (offset (read-arg 4))) + (kind (pop-stack)) + (code-object (pop-stack)) + (offset (read-word-arg))) (record-cold-assembler-fixup routine code-object offset kind) code-object)) (define-cold-fop (fop-code-object-fixup) (let* ((kind (pop-stack)) - (code-object (pop-stack)) - (offset (read-arg 4)) - (value (descriptor-bits code-object))) + (code-object (pop-stack)) + (offset (read-word-arg)) + (value (descriptor-bits code-object))) (do-cold-fixup code-object offset value kind) code-object)) ;;;; emitting C header file -(defun tail-comp (string tail) +(defun tailwise-equal (string tail) (and (>= (length string) (length tail)) (string= string tail :start1 (- (length string) (length tail))))) -(defun head-comp (string head) - (and (>= (length string) (length head)) - (string= string head :end1 (length head)))) - -(defun write-c-header () - - ;; writing beginning boilerplate +(defun write-boilerplate () (format t "/*~%") (dolist (line - '("This is a machine-generated file. Do not edit it by hand." - "" - "This file contains low-level information about the" - "internals of a particular version and configuration" - "of SBCL. It is used by the C compiler to create a runtime" - "support environment, an executable program in the host" - "operating system's native format, which can then be used to" - "load and run 'core' files, which are basically programs" - "in SBCL's own format.")) - (format t " * ~A~%" line)) - (format t " */~%") - (terpri) - (format t "#ifndef _SBCL_H_~%#define _SBCL_H_~%") + '("This is a machine-generated file. Please do not edit it by hand." + "(As of sbcl-0.8.14, it came from WRITE-CONFIG-H in genesis.lisp.)" + nil + "This file contains low-level information about the" + "internals of a particular version and configuration" + "of SBCL. It is used by the C compiler to create a runtime" + "support environment, an executable program in the host" + "operating system's native format, which can then be used to" + "load and run 'core' files, which are basically programs" + "in SBCL's own format.")) + (format t " *~@[ ~A~]~%" line)) + (format t " */~%")) + +(defun write-config-h () + ;; propagating *SHEBANG-FEATURES* into C-level #define's + (dolist (shebang-feature-name (sort (mapcar #'symbol-name + sb-cold:*shebang-features*) + #'string<)) + (format t + "#define LISP_FEATURE_~A~%" + (substitute #\_ #\- shebang-feature-name))) (terpri) - - ;; writing miscellaneous constants + ;; and miscellaneous constants (format t "#define SBCL_CORE_VERSION_INTEGER ~D~%" sbcl-core-version-integer) (format t - "#define SBCL_VERSION_STRING ~S~%" - (sb!xc:lisp-implementation-version)) + "#define SBCL_VERSION_STRING ~S~%" + (sb!xc:lisp-implementation-version)) (format t "#define CORE_MAGIC 0x~X~%" core-magic) - (terpri) - ;; FIXME: Other things from core.h should be defined here too: - ;; #define CORE_END 3840 - ;; #define CORE_NDIRECTORY 3861 - ;; #define CORE_VALIDATE 3845 - ;; #define CORE_VERSION 3860 - ;; #define CORE_MACHINE_STATE 3862 - ;; (Except that some of them are obsolete and should be deleted instead.) - ;; also - ;; #define DYNAMIC_SPACE_ID (1) - ;; #define STATIC_SPACE_ID (2) - ;; #define READ_ONLY_SPACE_ID (3) - - ;; writing entire families of named constants from SB!VM + (format t "#ifndef LANGUAGE_ASSEMBLY~2%") + (format t "#define LISPOBJ(x) ((lispobj)x)~2%") + (format t "#else /* LANGUAGE_ASSEMBLY */~2%") + (format t "#define LISPOBJ(thing) thing~2%") + (format t "#endif /* LANGUAGE_ASSEMBLY */~2%") + (terpri)) + +(defun write-constants-h () + ;; writing entire families of named constants (let ((constants nil)) - (do-external-symbols (symbol (find-package "SB!VM")) - (when (constantp symbol) - (let ((name (symbol-name symbol))) - (labels (;; shared machinery - (record (string priority) - (push (list string - priority - (symbol-value symbol) - (documentation symbol 'variable)) - constants)) - ;; machinery for old-style CMU CL Lisp-to-C naming - (record-with-munged-name (prefix string priority) - (record (concatenate - 'simple-string - prefix - (delete #\- (string-capitalize string))) - priority)) - (test-tail (tail prefix priority) - (when (tail-comp name tail) - (record-with-munged-name prefix - (subseq name 0 - (- (length name) - (length tail))) - priority))) - (test-head (head prefix priority) - (when (head-comp name head) - (record-with-munged-name prefix - (subseq name (length head)) - priority))) - ;; machinery for new-style SBCL Lisp-to-C naming - (record-with-translated-name (priority) - (record (substitute #\_ #\- name) - priority))) - ;; This style of munging of names is used in the code - ;; inherited from CMU CL. - (test-tail "-TYPE" "type_" 0) - (test-tail "-FLAG" "flag_" 1) - (test-tail "-TRAP" "trap_" 2) - (test-tail "-SUBTYPE" "subtype_" 3) - (test-head "TRACE-TABLE-" "tracetab_" 4) - (test-tail "-SC-NUMBER" "sc_" 5) - ;; This simpler style of translation of names seems less - ;; confusing, and is used for newer code. - (when (some (lambda (suffix) (tail-comp name suffix)) - #("-START" "-END")) - (record-with-translated-name 6)))))) + (dolist (package-name '(;; Even in CMU CL, constants from VM + ;; were automatically propagated + ;; into the runtime. + "SB!VM" + ;; In SBCL, we also propagate various + ;; magic numbers related to file format, + ;; which live here instead of SB!VM. + "SB!FASL")) + (do-external-symbols (symbol (find-package package-name)) + (when (constantp symbol) + (let ((name (symbol-name symbol))) + (labels (;; shared machinery + (record (string priority) + (push (list string + priority + (symbol-value symbol) + (documentation symbol 'variable)) + constants)) + ;; machinery for old-style CMU CL Lisp-to-C + ;; arbitrary renaming, being phased out in favor of + ;; the newer systematic RECORD-WITH-TRANSLATED-NAME + ;; renaming + (record-with-munged-name (prefix string priority) + (record (concatenate + 'simple-string + prefix + (delete #\- (string-capitalize string))) + priority)) + (maybe-record-with-munged-name (tail prefix priority) + (when (tailwise-equal name tail) + (record-with-munged-name prefix + (subseq name 0 + (- (length name) + (length tail))) + priority))) + ;; machinery for new-style SBCL Lisp-to-C naming + (record-with-translated-name (priority) + (record (substitute #\_ #\- name) + priority)) + (maybe-record-with-translated-name (suffixes priority) + (when (some (lambda (suffix) + (tailwise-equal name suffix)) + suffixes) + (record-with-translated-name priority)))) + + (maybe-record-with-translated-name '("-LOWTAG") 0) + (maybe-record-with-translated-name '("-WIDETAG") 1) + (maybe-record-with-munged-name "-FLAG" "flag_" 2) + (maybe-record-with-munged-name "-TRAP" "trap_" 3) + (maybe-record-with-munged-name "-SUBTYPE" "subtype_" 4) + (maybe-record-with-munged-name "-SC-NUMBER" "sc_" 5) + (maybe-record-with-translated-name '("-START" "-END" "-SIZE") 6) + (maybe-record-with-translated-name '("-CORE-ENTRY-TYPE-CODE") 7) + (maybe-record-with-translated-name '("-CORE-SPACE-ID") 8)))))) + ;; KLUDGE: these constants are sort of important, but there's no + ;; pleasing way to inform the code above about them. So we fake + ;; it for now. nikodemus on #lisp (2004-08-09) suggested simply + ;; exporting every numeric constant from SB!VM; that would work, + ;; but the C runtime would have to be altered to use Lisp-like names + ;; rather than the munged names currently exported. --njf, 2004-08-09 + (dolist (c '(sb!vm:n-word-bits sb!vm:n-word-bytes + 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)) + -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))) + (setf constants - (sort constants - #'(lambda (const1 const2) - (if (= (second const1) (second const2)) - (< (third const1) (third const2)) - (< (second const1) (second const2)))))) + (sort constants + (lambda (const1 const2) + (if (= (second const1) (second const2)) + (< (third const1) (third const2)) + (< (second const1) (second const2)))))) (let ((prev-priority (second (car constants)))) (dolist (const constants) - (destructuring-bind (name priority value doc) const - (unless (= prev-priority priority) - (terpri) - (setf prev-priority priority)) - (format t "#define ~A " name) - (format t - ;; KLUDGE: As of sbcl-0.6.7.14, we're dumping two - ;; different kinds of values here, (1) small codes - ;; and (2) machine addresses. The small codes can be - ;; dumped as bare integer values. The large machine - ;; addresses might cause problems if they're large - ;; and represented as (signed) C integers, so we - ;; want to force them to be unsigned. We do that by - ;; wrapping them in the LISPOBJ macro. (We could do - ;; it with a bare "(unsigned)" cast, except that - ;; this header file is used not only in C files, but - ;; also in assembly files, which don't understand - ;; the cast syntax. The LISPOBJ macro goes away in - ;; assembly files, but that shouldn't matter because - ;; we don't do arithmetic on address constants in - ;; assembly files. See? It really is a kludge..) -- - ;; WHN 2000-10-18 - (let (;; cutoff for treatment as a small code - (cutoff (expt 2 16))) - (cond ((minusp value) - (error "stub: negative values unsupported")) - ((< value cutoff) - "~D") - (t - "LISPOBJ(~D)"))) - value) - (format t " /* 0x~X */~@[ /* ~A */~]~%" value doc)))) + (destructuring-bind (name priority value doc) const + (unless (= prev-priority priority) + (terpri) + (setf prev-priority priority)) + (format t "#define ~A " name) + (format t + ;; KLUDGE: As of sbcl-0.6.7.14, we're dumping two + ;; different kinds of values here, (1) small codes + ;; and (2) machine addresses. The small codes can be + ;; dumped as bare integer values. The large machine + ;; addresses might cause problems if they're large + ;; and represented as (signed) C integers, so we + ;; want to force them to be unsigned. We do that by + ;; wrapping them in the LISPOBJ macro. (We could do + ;; it with a bare "(unsigned)" cast, except that + ;; this header file is used not only in C files, but + ;; also in assembly files, which don't understand + ;; the cast syntax. The LISPOBJ macro goes away in + ;; assembly files, but that shouldn't matter because + ;; we don't do arithmetic on address constants in + ;; assembly files. See? It really is a kludge..) -- + ;; WHN 2000-10-18 + (let (;; cutoff for treatment as a small code + (cutoff (expt 2 16))) + (cond ((minusp value) + (error "stub: negative values unsupported")) + ((< value cutoff) + "~D") + (t + "LISPOBJ(~DU)"))) + value) + (format t " /* 0x~X */~@[ /* ~A */~]~%" value doc)))) (terpri)) - ;; writing codes/strings for internal errors - (format t "#define ERRORS { \\~%") - ;; FIXME: Is this just DO-VECTOR? + ;; writing information about internal errors (let ((internal-errors sb!c:*backend-internal-errors*)) (dotimes (i (length internal-errors)) - (format t " ~S, /*~D*/ \\~%" (cdr (aref internal-errors i)) i))) - (format t " NULL \\~%}~%") + (let ((current-error (aref internal-errors i))) + ;; FIXME: this UNLESS should go away (see also FIXME in + ;; interr.lisp) -- APD, 2002-03-05 + (unless (eq nil (car current-error)) + (format t "#define ~A ~D~%" + (substitute #\_ #\- (symbol-name (car current-error))) + i))))) (terpri) + ;; FIXME: The SPARC has a PSEUDO-ATOMIC-TRAP that differs between + ;; platforms. If we export this from the SB!VM package, it gets + ;; written out as #define trap_PseudoAtomic, which is confusing as + ;; the runtime treats trap_ as the prefix for illegal instruction + ;; type things. We therefore don't export it, but instead do + #!+sparc + (when (boundp 'sb!vm::pseudo-atomic-trap) + (format t + "#define PSEUDO_ATOMIC_TRAP ~D /* 0x~:*~X */~%" + sb!vm::pseudo-atomic-trap) + (terpri)) + ;; possibly this is another candidate for a rename (to + ;; pseudo-atomic-trap-number or pseudo-atomic-magic-constant + ;; [possibly applicable to other platforms]) + + (dolist (symbol '(sb!vm::float-traps-byte + sb!vm::float-exceptions-byte + sb!vm::float-sticky-bits + sb!vm::float-rounding-mode)) + (format t "#define ~A_POSITION ~A /* ~:*0x~X */~%" + (substitute #\_ #\- (symbol-name symbol)) + (sb!xc:byte-position (symbol-value symbol))) + (format t "#define ~A_MASK 0x~X /* ~:*~A */~%" + (substitute #\_ #\- (symbol-name symbol)) + (sb!xc:mask-field (symbol-value symbol) -1)))) + + + +(defun write-primitive-object (obj) ;; writing primitive object layouts - (let ((structs (sort (copy-list sb!vm:*primitive-objects*) #'string< - :key #'(lambda (obj) - (symbol-name - (sb!vm:primitive-object-name obj)))))) (format t "#ifndef LANGUAGE_ASSEMBLY~2%") - (format t "#define LISPOBJ(x) ((lispobj)x)~2%") - (dolist (obj structs) (format t - "struct ~A {~%" - (nsubstitute #\_ #\- - (string-downcase (string (sb!vm:primitive-object-name obj))))) - (when (sb!vm:primitive-object-header obj) - (format t " lispobj header;~%")) + "struct ~A {~%" + (substitute #\_ #\- + (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") - (nsubstitute #\_ #\- - (string-downcase (string (sb!vm:slot-name slot)))) - (sb!vm:slot-rest-p slot))) - (format t "};~2%")) + (format t " ~A ~A~@[[1]~];~%" + (getf (sb!vm:slot-options slot) :c-type "lispobj") + (substitute #\_ #\- + (string-downcase (string (sb!vm:slot-name slot)))) + (sb!vm:slot-rest-p slot))) + (format t "};~2%") (format t "#else /* LANGUAGE_ASSEMBLY */~2%") - (format t "#define LISPOBJ(thing) thing~2%") - (dolist (obj structs) (let ((name (sb!vm:primitive-object-name obj)) (lowtag (eval (sb!vm:primitive-object-lowtag obj)))) - (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))) - (- (* (sb!vm:slot-offset slot) sb!vm:word-bytes) lowtag))) - (terpri)))) + (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))) + (- (* (sb!vm:slot-offset slot) sb!vm:n-word-bytes) lowtag))) + (terpri))) (format t "#endif /* LANGUAGE_ASSEMBLY */~2%")) - ;; writing static symbol offsets +(defun write-structure-object (dd) + (flet ((cstring (designator) + (substitute + #\_ #\% + (substitute #\_ #\- (string-downcase (string designator)))))) + (format t "#ifndef LANGUAGE_ASSEMBLY~2%") + (format t "struct ~A {~%" (cstring (dd-name dd))) + (format t " lispobj header;~%") + (format t " lispobj layout;~%") + (dolist (slot (dd-slots dd)) + (when (eq t (dsd-raw-type slot)) + (format t " lispobj ~A;~%" (cstring (dsd-name slot))))) + (unless (oddp (+ (dd-length dd) (dd-raw-length dd))) + (format t " long raw_slot_padding;~%")) + (dotimes (n (dd-raw-length dd)) + (format t " long raw~D;~%" (- (dd-raw-length dd) n 1))) + (format t "};~2%") + (format t "#endif /* LANGUAGE_ASSEMBLY */~2%"))) + +(defun write-static-symbols () (dolist (symbol (cons nil sb!vm:*static-symbols*)) - ;; FIXME: It would be nice to use longer names NIL and (particularly) T - ;; in #define statements. + ;; FIXME: It would be nice to use longer names than NIL and + ;; (particularly) T in #define statements. (format t "#define ~A LISPOBJ(0x~X)~%" - (nsubstitute #\_ #\- - (remove-if #'(lambda (char) - (member char '(#\% #\* #\. #\!))) - (symbol-name symbol))) - (if *static* ; if we ran GENESIS - ;; We actually ran GENESIS, use the real value. - (descriptor-bits (cold-intern symbol)) - ;; We didn't run GENESIS, so guess at the address. - (+ sb!vm:static-space-start - sb!vm:word-bytes - sb!vm:other-pointer-type - (if symbol (sb!vm:static-symbol-offset symbol) 0))))) - - ;; Voila. - (format t "~%#endif~%")) + (substitute #\_ #\- + (remove-if (lambda (char) + (member char '(#\% #\* #\. #\!))) + (symbol-name symbol))) + (if *static* ; if we ran GENESIS + ;; We actually ran GENESIS, use the real value. + (descriptor-bits (cold-intern symbol)) + ;; We didn't run GENESIS, so guess at the address. + (+ sb!vm:static-space-start + sb!vm:n-word-bytes + sb!vm:other-pointer-lowtag + (if symbol (sb!vm:static-symbol-offset symbol) 0)))))) + ;;;; writing map file @@ -2701,28 +2865,29 @@ ;;; stages of cold load. (defun write-map () (let ((*print-pretty* nil) - (*print-case* :upcase)) + (*print-case* :upcase)) (format t "assembler routines defined in core image:~2%") (dolist (routine (sort (copy-list *cold-assembler-routines*) #'< - :key #'cdr)) + :key #'cdr)) (format t "#X~8,'0X: ~S~%" (cdr routine) (car routine))) (let ((funs nil) - (undefs nil)) - (maphash #'(lambda (name fdefn) - (let ((fun (read-wordindexed fdefn - sb!vm:fdefn-function-slot))) - (if (= (descriptor-bits fun) - (descriptor-bits *nil-descriptor*)) - (push name undefs) - (let ((addr (read-wordindexed fdefn - sb!vm:fdefn-raw-addr-slot))) - (push (cons name (descriptor-bits addr)) - funs))))) - *cold-fdefn-objects*) + (undefs nil)) + (maphash (lambda (name fdefn) + (let ((fun (read-wordindexed fdefn + sb!vm:fdefn-fun-slot))) + (if (= (descriptor-bits fun) + (descriptor-bits *nil-descriptor*)) + (push name undefs) + (let ((addr (read-wordindexed + fdefn sb!vm:fdefn-raw-addr-slot))) + (push (cons name (descriptor-bits addr)) + funs))))) + *cold-fdefn-objects*) (format t "~%~|~%initially defined functions:~2%") - (dolist (info (sort funs #'< :key #'cdr)) - (format t "0x~8,'0X: ~S #X~8,'0X~%" (cdr info) (car info) - (- (cdr info) #x17))) + (setf funs (sort funs #'< :key #'cdr)) + (dolist (info funs) + (format t "0x~8,'0X: ~S #X~8,'0X~%" (cdr info) (car info) + (- (cdr info) #x17))) (format t "~%~| (a note about initially undefined function references: These functions @@ -2735,33 +2900,20 @@ cross-compiler knew their inline definition and used that everywhere that they were called before the out-of-line definition is installed, as is fairly common for structure accessors.) initially undefined function references:~2%") - (labels ((key (name) - (etypecase name - (symbol (symbol-name name)) - ;; FIXME: should use standard SETF-function parsing logic - (list (key (second name)))))) - (dolist (name (sort undefs #'string< :key #'key)) - (format t "~S" name) - ;; FIXME: This ACCESSOR-FOR stuff should go away when the - ;; code has stabilized. (It's only here to help me - ;; categorize the flood of undefined functions caused by - ;; completely rewriting the bootstrap process. Hopefully any - ;; future maintainers will mostly have small numbers of - ;; undefined functions..) - (let ((accessor-for (info :function :accessor-for name))) - (when accessor-for - (format t " (accessor for ~S)" accessor-for))) - (format t "~%"))))) - - (format t "~%~|~%layout names:~2%") - (collect ((stuff)) - (maphash #'(lambda (name gorp) - (declare (ignore name)) - (stuff (cons (descriptor-bits (car gorp)) - (cdr gorp)))) - *cold-layouts*) - (dolist (x (sort (stuff) #'< :key #'car)) - (apply #'format t "~8,'0X: ~S[~D]~%~10T~S~%" x))) + + (setf undefs (sort undefs #'string< :key #'fun-name-block-name)) + (dolist (name undefs) + (format t "~S~%" name))) + + (format t "~%~|~%layout names:~2%") + (collect ((stuff)) + (maphash (lambda (name gorp) + (declare (ignore name)) + (stuff (cons (descriptor-bits (car gorp)) + (cdr gorp)))) + *cold-layouts*) + (dolist (x (sort (stuff) #'< :key #'car)) + (apply #'format t "~8,'0X: ~S[~D]~%~10T~S~%" x)))) (values)) @@ -2770,47 +2922,54 @@ initially undefined function references:~2%") (defvar *core-file*) (defvar *data-page*) -;;; KLUDGE: These numbers correspond to values in core.h. If they're -;;; documented anywhere, I haven't found it. (I haven't tried very -;;; hard yet.) -- WHN 19990826 -(defparameter version-entry-type-code 3860) -(defparameter validate-entry-type-code 3845) -(defparameter directory-entry-type-code 3841) -(defparameter new-directory-entry-type-code 3861) -(defparameter initial-function-entry-type-code 3863) -(defparameter end-entry-type-code 3840) - -(declaim (ftype (function (sb!vm:word) sb!vm:word) write-long)) -(defun write-long (num) ; FIXME: WRITE-WORD would be a better name. +;;; magic numbers to identify entries in a core file +;;; +;;; (In case you were wondering: No, AFAIK there's no special magic about +;;; these which requires them to be in the 38xx range. They're just +;;; arbitrary words, tested not for being in a particular range but just +;;; for equality. However, if you ever need to look at a .core file and +;;; figure out what's going on, it's slightly convenient that they're +;;; all in an easily recognizable range, and displacing the range away from +;;; zero seems likely to reduce the chance that random garbage will be +;;; misinterpreted as a .core file.) +(defconstant version-core-entry-type-code 3860) +(defconstant build-id-core-entry-type-code 3899) +(defconstant new-directory-core-entry-type-code 3861) +(defconstant initial-fun-core-entry-type-code 3863) +(defconstant end-core-entry-type-code 3840) + +(declaim (ftype (function (sb!vm:word) sb!vm:word) write-word)) +(defun write-word (num) (ecase sb!c:*backend-byte-order* (:little-endian - (dotimes (i 4) + (dotimes (i sb!vm:n-word-bytes) (write-byte (ldb (byte 8 (* i 8)) num) *core-file*))) (:big-endian - (dotimes (i 4) - (write-byte (ldb (byte 8 (* (- 3 i) 8)) num) *core-file*)))) + (dotimes (i sb!vm:n-word-bytes) + (write-byte (ldb (byte 8 (* (- (1- sb!vm:n-word-bytes) i) 8)) num) + *core-file*)))) num) (defun advance-to-page () (force-output *core-file*) (file-position *core-file* - (round-up (file-position *core-file*) - sb!c:*backend-page-size*))) + (round-up (file-position *core-file*) + sb!c:*backend-page-size*))) (defun output-gspace (gspace) (force-output *core-file*) (let* ((posn (file-position *core-file*)) - (bytes (* (gspace-free-word-index gspace) sb!vm:word-bytes)) - (pages (ceiling bytes sb!c:*backend-page-size*)) - (total-bytes (* pages sb!c:*backend-page-size*))) + (bytes (* (gspace-free-word-index gspace) sb!vm:n-word-bytes)) + (pages (ceiling bytes sb!c:*backend-page-size*)) + (total-bytes (* pages sb!c:*backend-page-size*))) (file-position *core-file* - (* sb!c:*backend-page-size* (1+ *data-page*))) + (* sb!c:*backend-page-size* (1+ *data-page*))) (format t - "writing ~S byte~:P [~S page~:P] from ~S~%" - total-bytes - pages - gspace) + "writing ~S byte~:P [~S page~:P] from ~S~%" + total-bytes + pages + gspace) (force-output) ;; Note: It is assumed that the GSPACE allocation routines always @@ -2819,7 +2978,9 @@ initially undefined function references:~2%") ;; be zero-filled. This will always be true under Mach on machines ;; where the page size is equal. (RT is 4K, PMAX is 4K, Sun 3 is ;; 8K). - (write-sequence (gspace-bytes gspace) *core-file* :end total-bytes) + (write-bigvec-as-sequence (gspace-bytes gspace) + *core-file* + :end total-bytes) (force-output *core-file*) (file-position *core-file* posn) @@ -2829,18 +2990,14 @@ initially undefined function references:~2%") ;; DATA PAGE ;; ADDRESS ;; PAGE COUNT - (write-long (gspace-identifier gspace)) - (write-long (gspace-free-word-index gspace)) - (write-long *data-page*) + (write-word (gspace-identifier gspace)) + (write-word (gspace-free-word-index gspace)) + (write-word *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)) - (write-long floor)) - (write-long pages) + (floor (gspace-byte-address gspace) sb!c:*backend-page-size*) + (aver (zerop rem)) + (write-word floor)) + (write-word pages) (incf *data-page* pages))) @@ -2852,49 +3009,65 @@ initially undefined function references:~2%") (defun write-initial-core-file (filename) (let ((filenamestring (namestring filename)) - (*data-page* 0)) + (*data-page* 0)) (format t - "[building initial core file in ~S: ~%" - filenamestring) + "[building initial core file in ~S: ~%" + filenamestring) (force-output) (with-open-file (*core-file* filenamestring - :direction :output - :element-type '(unsigned-byte 8) - :if-exists :rename-and-delete) + :direction :output + :element-type '(unsigned-byte 8) + :if-exists :rename-and-delete) ;; Write the magic number. - (write-long core-magic) + (write-word core-magic) ;; Write the Version entry. - (write-long version-entry-type-code) - (write-long 3) - (write-long sbcl-core-version-integer) + (write-word version-core-entry-type-code) + (write-word 3) + (write-word sbcl-core-version-integer) + + ;; Write the build ID. + (write-word build-id-core-entry-type-code) + (let ((build-id (with-open-file (s "output/build-id.tmp" + :direction :input) + (read s)))) + (declare (type simple-string build-id)) + (/show build-id (length build-id)) + ;; Write length of build ID record: BUILD-ID-CORE-ENTRY-TYPE-CODE + ;; word, this length word, and one word for each char of BUILD-ID. + (write-word (+ 2 (length build-id))) + (dovector (char build-id) + ;; (We write each character as a word in order to avoid + ;; having to think about word alignment issues in the + ;; sbcl-0.7.8 version of coreparse.c.) + (write-word (sb!xc:char-code char)))) ;; Write the New Directory entry header. - (write-long new-directory-entry-type-code) - (write-long 17) ; length = (5 words/space) * 3 spaces + 2 for header. + (write-word new-directory-core-entry-type-code) + (write-word 17) ; length = (5 words/space) * 3 spaces + 2 for header. (output-gspace *read-only*) (output-gspace *static*) (output-gspace *dynamic*) ;; Write the initial function. - (write-long initial-function-entry-type-code) - (write-long 3) + (write-word initial-fun-core-entry-type-code) + (write-word 3) (let* ((cold-name (cold-intern '!cold-init)) - (cold-fdefn (cold-fdefinition-object cold-name)) - (initial-function (read-wordindexed cold-fdefn - sb!vm:fdefn-function-slot))) - (format t - "~&/(DESCRIPTOR-BITS INITIAL-FUNCTION)=#X~X~%" - (descriptor-bits initial-function)) - (write-long (descriptor-bits initial-function))) + (cold-fdefn (cold-fdefinition-object cold-name)) + (initial-fun (read-wordindexed cold-fdefn + sb!vm:fdefn-fun-slot))) + (format t + "~&/(DESCRIPTOR-BITS INITIAL-FUN)=#X~X~%" + (descriptor-bits initial-fun)) + (write-word (descriptor-bits initial-fun))) ;; Write the End entry. - (write-long end-entry-type-code) - (write-long 2))) + (write-word end-core-entry-type-code) + (write-word 2))) (format t "done]~%") (force-output) @@ -2922,56 +3095,41 @@ initially undefined function references:~2%") ;;; the executable which will load the core. ;;; MAP-FILE-NAME gets (?) a map file. (dunno about this -- WHN 19990815) ;;; -;;; other arguments: -;;; BYTE-ORDER-SWAP-P controls whether GENESIS tries to swap bytes -;;; in some places in the output. It's only appropriate when -;;; cross-compiling from a machine with one byte order to a -;;; machine with the opposite byte order, which is irrelevant in -;;; current (19990816) SBCL, since only the X86 architecture is -;;; supported. If you're trying to add support for more -;;; architectures, see the comments on DEFVAR -;;; *GENESIS-BYTE-ORDER-SWAP-P* for more information. -;;; ;;; FIXME: GENESIS doesn't belong in SB!VM. Perhaps in %KERNEL for now, ;;; perhaps eventually in SB-LD or SB-BOOT. (defun sb!vm:genesis (&key - object-file-names - symbol-table-file-name - core-file-name - map-file-name - c-header-file-name - byte-order-swap-p) - - (when (and core-file-name - (not symbol-table-file-name)) - (error "can't output a core file without symbol table file input")) + object-file-names + symbol-table-file-name + core-file-name + map-file-name + c-header-dir-name) (format t - "~&beginning GENESIS, ~A~%" - (if core-file-name - ;; Note: This output summarizing what we're doing is - ;; somewhat telegraphic in style, not meant to imply that - ;; we're not e.g. also creating a header file when we - ;; create a core. - (format nil "creating core ~S" core-file-name) - (format nil "creating header ~S" c-header-file-name))) - - (let* ((*cold-foreign-symbol-table* (make-hash-table :test 'equal))) - - ;; Read symbol table, if any. - (when symbol-table-file-name - (load-foreign-symbol-table symbol-table-file-name)) + "~&beginning GENESIS, ~A~%" + (if core-file-name + ;; Note: This output summarizing what we're doing is + ;; somewhat telegraphic in style, not meant to imply that + ;; we're not e.g. also creating a header file when we + ;; create a core. + (format nil "creating core ~S" core-file-name) + (format nil "creating headers in ~S" c-header-dir-name))) + + (let ((*cold-foreign-symbol-table* (make-hash-table :test 'equal))) + + (when core-file-name + (if symbol-table-file-name + (load-cold-foreign-symbol-table symbol-table-file-name) + (error "can't output a core file without symbol table file input"))) ;; Now that we've successfully read our only input file (by ;; loading the symbol table, if any), it's a good time to ensure ;; that there'll be someplace for our output files to go when ;; we're done. (flet ((frob (filename) - (when filename - (ensure-directories-exist filename :verbose t)))) + (when filename + (ensure-directories-exist filename :verbose t)))) (frob core-file-name) - (frob map-file-name) - (frob c-header-file-name)) + (frob map-file-name)) ;; (This shouldn't matter in normal use, since GENESIS normally ;; only runs once in any given Lisp image, but it could reduce @@ -2981,28 +3139,28 @@ initially undefined function references:~2%") (remprop sym 'cold-intern-info)) (let* ((*foreign-symbol-placeholder-value* (if core-file-name nil 0)) - (*load-time-value-counter* 0) - (*genesis-byte-order-swap-p* byte-order-swap-p) - (*cold-fdefn-objects* (make-hash-table :test 'equal)) - (*cold-symbols* (make-hash-table :test 'equal)) - (*cold-package-symbols* nil) - (*read-only* (make-gspace :read-only - read-only-space-id - sb!vm:read-only-space-start)) - (*static* (make-gspace :static - static-space-id - sb!vm:static-space-start)) - (*dynamic* (make-gspace :dynamic - dynamic-space-id - sb!vm:dynamic-space-start)) - (*nil-descriptor* (make-nil-descriptor)) - (*current-reversed-cold-toplevels* *nil-descriptor*) - (*unbound-marker* (make-other-immediate-descriptor - 0 - sb!vm:unbound-marker-type)) - *cold-assembler-fixups* - *cold-assembler-routines* - #!+x86 *load-time-code-fixups*) + (*load-time-value-counter* 0) + (*cold-fdefn-objects* (make-hash-table :test 'equal)) + (*cold-symbols* (make-hash-table :test 'equal)) + (*cold-package-symbols* nil) + (*read-only* (make-gspace :read-only + read-only-core-space-id + sb!vm:read-only-space-start)) + (*static* (make-gspace :static + static-core-space-id + sb!vm:static-space-start)) + (*dynamic* (make-gspace :dynamic + dynamic-core-space-id + #!+gencgc sb!vm:dynamic-space-start + #!-gencgc sb!vm:dynamic-0-space-start)) + (*nil-descriptor* (make-nil-descriptor)) + (*current-reversed-cold-toplevels* *nil-descriptor*) + (*unbound-marker* (make-other-immediate-descriptor + 0 + sb!vm:unbound-marker-widetag)) + *cold-assembler-fixups* + *cold-assembler-routines* + #!+(or x86 x86-64) *load-time-code-fixups*) ;; Prepare for cold load. (initialize-non-nil-symbols) @@ -3031,57 +3189,64 @@ initially undefined function references:~2%") ;; 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")) - (cold-intern (intern exported-name *cl-package*))) + (sb-cold:read-from-file "common-lisp-exports.lisp-expr")) + (cold-intern (intern exported-name *cl-package*))) (dolist (pd (sb-cold:read-from-file "package-data-list.lisp-expr")) - (declare (type sb-cold:package-data pd)) - (let ((package (find-package (sb-cold:package-data-name pd)))) - (labels (;; Call FN on every node of the TREE. - (mapc-on-tree (fn tree) - (typecase tree - (cons (mapc-on-tree fn (car tree)) - (mapc-on-tree fn (cdr tree))) - (t (funcall fn tree) - (values)))) - ;; Make sure that information about the association - ;; between PACKAGE and the symbol named NAME gets - ;; recorded in the cold-intern system or (as a - ;; convenience when dealing with the tree structure - ;; allowed in the PACKAGE-DATA-EXPORTS slot) do - ;; nothing if NAME is NIL. - (chill (name) - (when name - (cold-intern (intern name package) package)))) - (mapc-on-tree #'chill (sb-cold:package-data-export pd)) - (mapc #'chill (sb-cold:package-data-reexport pd)) - (dolist (sublist (sb-cold:package-data-import-from pd)) - (destructuring-bind (package-name &rest symbol-names) sublist - (declare (ignore package-name)) - (mapc #'chill symbol-names)))))) + (declare (type sb-cold:package-data pd)) + (let ((package (find-package (sb-cold:package-data-name pd)))) + (labels (;; Call FN on every node of the TREE. + (mapc-on-tree (fn tree) + (declare (type function fn)) + (typecase tree + (cons (mapc-on-tree fn (car tree)) + (mapc-on-tree fn (cdr tree))) + (t (funcall fn tree) + (values)))) + ;; Make sure that information about the association + ;; between PACKAGE and the symbol named NAME gets + ;; recorded in the cold-intern system or (as a + ;; convenience when dealing with the tree structure + ;; allowed in the PACKAGE-DATA-EXPORTS slot) do + ;; nothing if NAME is NIL. + (chill (name) + (when name + (cold-intern (intern name package) package)))) + (mapc-on-tree #'chill (sb-cold:package-data-export pd)) + (mapc #'chill (sb-cold:package-data-reexport pd)) + (dolist (sublist (sb-cold:package-data-import-from pd)) + (destructuring-bind (package-name &rest symbol-names) sublist + (declare (ignore package-name)) + (mapc #'chill symbol-names)))))) ;; Cold load. (dolist (file-name object-file-names) - (write-line (namestring file-name)) - (cold-load file-name)) + (write-line (namestring file-name)) + (cold-load file-name)) ;; Tidy up loose ends left by cold loading. ("Postpare from cold load?") (resolve-assembler-fixups) - #!+x86 (output-load-time-code-fixups) - (linkage-info-to-core) + #!+(or x86 x86-64) (output-load-time-code-fixups) + (foreign-symbols-to-core) (finish-symbols) (/show "back from FINISH-SYMBOLS") (finalize-load-time-value-noise) ;; Tell the target Lisp how much stuff we've allocated. (cold-set 'sb!vm:*read-only-space-free-pointer* - (allocate-descriptor *read-only* 0 sb!vm:even-fixnum-type)) + (allocate-cold-descriptor *read-only* + 0 + sb!vm:even-fixnum-lowtag)) (cold-set 'sb!vm:*static-space-free-pointer* - (allocate-descriptor *static* 0 sb!vm:even-fixnum-type)) + (allocate-cold-descriptor *static* + 0 + sb!vm:even-fixnum-lowtag)) (cold-set 'sb!vm:*initial-dynamic-space-free-pointer* - (allocate-descriptor *dynamic* 0 sb!vm:even-fixnum-type)) + (allocate-cold-descriptor *dynamic* + 0 + sb!vm:even-fixnum-lowtag)) (/show "done setting free pointers") ;; Write results to files. @@ -3091,15 +3256,51 @@ initially undefined function references:~2%") ;; lexical variable, and it's annoying to have WRITE-MAP (to ;; *STANDARD-OUTPUT*) not be parallel to WRITE-INITIAL-CORE-FILE ;; (to a stream explicitly passed as an argument). + (macrolet ((out-to (name &body body) + `(let ((fn (format nil "~A/~A.h" c-header-dir-name ,name))) + (ensure-directories-exist fn) + (with-open-file (*standard-output* fn + :if-exists :supersede :direction :output) + (write-boilerplate) + (let ((n (substitute #\_ #\- (string-upcase ,name)))) + (format + t + "#ifndef SBCL_GENESIS_~A~%#define SBCL_GENESIS_~A 1~%" + n n)) + ,@body + (format t + "#endif /* SBCL_GENESIS_~A */~%" + (string-upcase ,name)))))) (when map-file-name - (with-open-file (*standard-output* map-file-name - :direction :output - :if-exists :supersede) - (write-map))) - (when c-header-file-name - (with-open-file (*standard-output* c-header-file-name - :direction :output - :if-exists :supersede) - (write-c-header))) + (with-open-file (*standard-output* map-file-name + :direction :output + :if-exists :supersede) + (write-map))) + (out-to "config" (write-config-h)) + (out-to "constants" (write-constants-h)) + (let ((structs (sort (copy-list sb!vm:*primitive-objects*) #'string< + :key (lambda (obj) + (symbol-name + (sb!vm:primitive-object-name obj)))))) + (dolist (obj structs) + (out-to + (string-downcase (string (sb!vm:primitive-object-name obj))) + (write-primitive-object obj))) + (out-to "primitive-objects" + (dolist (obj structs) + (format t "~&#include \"~A.h\"~%" + (string-downcase + (string (sb!vm:primitive-object-name obj))))))) + (dolist (class '(hash-table + layout + sb!c::compiled-debug-info + sb!c::compiled-debug-fun + sb!xc:package)) + (out-to + (string-downcase (string class)) + (write-structure-object + (sb!kernel:layout-info (sb!kernel:find-layout class))))) + (out-to "static-symbols" (write-static-symbols)) + (when core-file-name - (write-initial-core-file core-file-name))))) + (write-initial-core-file core-file-name))))))