0.8.16.9:
[sbcl.git] / src / compiler / generic / genesis.lisp
index fad92a9..57668a8 100644 (file)
 
 ;;; 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
 ;;;
 ;;; 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
   bigvec)
 \f
 ;;;; looking up bytes and multi-byte values in a BIGVEC (considering
-;;;; it as an image of machine memory)
+;;;; 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.
                            (ldb (byte 8 ,(- n 8 (* i 8))) new-value)))))
               `(progn
                  (defun ,name (bigvec byte-index)
-                  (aver (= sb!vm:n-word-bits 32))
-                  (aver (= sb!vm:n-byte-bits 8))
                   (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)
-                  (aver (= sb!vm:n-word-bits 32))
-                  (aver (= sb!vm:n-byte-bits 8))
                   (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 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)))
+
 \f
 ;;;; representation of spaces in the core
 
   ;; 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:n-word-bits) null))
+  (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
                           (- unsigned #x40000000)
                           unsigned))))
            ((or (= lowtag sb!vm:other-immediate-0-lowtag)
-                (= lowtag sb!vm:other-immediate-1-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))
 (defun descriptor-fixnum (des)
   (let ((bits (descriptor-bits des)))
     (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 -2) (ash -1 (- sb!vm:n-word-bits 2)))
-      (ash bits -2))))
+        ;; 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)))))
 
 ;;; common idioms
 (defun descriptor-bytes (des)
                           type)))
 
 (defun make-character-descriptor (data)
-  (make-other-immediate-descriptor data sb!vm:base-char-widetag))
+  (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)
         (bytes (gspace-bytes gspace))
         (byte-index (ash (+ index (descriptor-word-offset address))
                          sb!vm:word-shift))
-        (value (bvref-32 bytes byte-index)))
+        (value (bvref-word bytes byte-index)))
     (make-random-descriptor value)))
 
 (declaim (ftype (function (descriptor) descriptor) read-memory))
     (let* ((bytes (gspace-bytes (descriptor-intuit-gspace address)))
           (byte-index (ash (+ index (descriptor-word-offset address))
                               sb!vm:word-shift)))
-      (setf (bvref-32 bytes byte-index)
+      (setf (bvref-word bytes byte-index)
            (descriptor-bits value)))))
 
 (declaim (ftype (function (descriptor descriptor)) write-memory))
         (des (allocate-vector-object gspace
                                      sb!vm:n-byte-bits
                                      (1+ length)
-                                     sb!vm:simple-string-widetag))
+                                     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))))
                       (make-fixnum-descriptor length))
     (dotimes (i length)
       (setf (bvref 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))))
+           (sb!xc:char-code (aref string i))))
     (setf (bvref bytes (+ offset length))
          0) ; null string-termination character for C
     des))
         (: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:n-word-bits
-                                        (1- sb!vm:long-float-size)
-                                        sb!vm:long-float-widetag))
-          (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))))
 
 (defun complex-single-float-to-core (num)
       (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))
+        (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))))
+        (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))
+        (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))))
+        (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))
 
 ;;; Copy the given number to the core.
 (defun number-to-core (number)
   (typecase number
-    (integer (if (< (integer-length number) 30)
+    (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))
                                         (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!xc:most-positive-fixnum))))
+                      (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*))
 ;;;    <external-symbols>
 ;;;    <imported-internal-symbols>
 ;;;    <imported-external-symbols>
-;;;    <shadowing-symbols>)
+;;;    <shadowing-symbols>
+;;;    <package-documentation>)
 ;;;
 ;;; 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
   (macrolet ((frob (symbol)
               `(cold-set ',symbol
                          (cold-fdefinition-object (cold-intern ',symbol)))))
-    (frob maybe-gc)
+    (frob sub-gc)
     (frob internal-error)
+    (frob sb!kernel::control-stack-exhausted-error)
     (frob sb!di::handle-breakpoint)
-    (frob sb!di::handle-fun-end-breakpoint))
+    (frob sb!di::handle-fun-end-breakpoint)
+    (frob sb!thread::handle-thread-exit))
 
-  (cold-set '*current-catch-block*          (make-fixnum-descriptor 0))
-  (cold-set '*current-unwind-protect-block* (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))
 
       (let* ((cold-package (car cold-package-symbols-entry))
             (symbols (cdr cold-package-symbols-entry))
             (shadows (package-shadowing-symbols cold-package))
+            (documentation (string-to-core (documentation cold-package t)))
             (internal *nil-descriptor*)
             (external *nil-descriptor*)
             (imported-internal *nil-descriptor*)
                               (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-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-0f0* (number-to-core 0f0))
-    (cold-set 'sb!vm::*fp-constant-1f0* (number-to-core 1f0))
-    #!+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))))))
+    (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.
                    (warm-symbol cadr-des))))
           (#.sb!vm:other-pointer-lowtag
            (warm-symbol des)))))
-    (unless (legal-fun-name-p result)
-      (error "not a legal function name: ~S" result))
+    (legal-fun-name-or-type-error result)
     result))
 
 (defun cold-fdefinition-object (cold-name &optional leave-fn-raw)
   (declare (type descriptor 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*)
                       sb!vm:fdefn-raw-addr-slot
                       (ecase type
                         (#.sb!vm:simple-fun-header-widetag
+                         (/show0 "static-fset (simple-fun)")
                          #!+sparc
                          defn
                          #!-sparc
                              (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-as-integer
                            (sb!vm:extern-alien-name "closure_tramp"))))))
             (desired (sb!vm:static-fun-offset sym)))
        (unless (= offset desired)
          ;; FIXME: should be fatal
-         (warn "Offset from FDEFN ~S to ~S is ~W, not ~W."
-               sym nil offset desired))))))
+         (error "Offset from FDEFN ~S to ~S is ~W, not ~W."
+                sym nil offset desired))))))
 
 (defun list-all-fdefn-objects ()
   (let ((result *nil-descriptor*))
 (defvar *cold-foreign-symbol-table*)
 (declaim (type hash-table *cold-foreign-symbol-table*))
 
-;;; Read the sbcl.nm file to find the addresses for foreign-symbols in
-;;; the C runtime.  
+;; 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)))
+    (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-as-integer (name)
   (or (find-foreign-symbol-in-table name *cold-foreign-symbol-table*)
 ;;; 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))
     (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))
                               (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 VECTOR-REF
-      ;; unstead of SAP-REF).
+      ;; (and note that you have to rewrite them to use BVREF-X
+      ;; instead of SAP-REF).
       (:alpha
         (ecase kind
          (:jmp-hint
                 (ldb (byte 8 0) value)
                 (bvref-8 gspace-bytes (1+ gspace-byte-offset))
                 (ldb (byte 8 8) value)))))
-      (:ppc
+      (:hppa
+       (ecase kind
+        (: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
+        (: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
          (:ba
           (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
-       (let* ((un-fixed-up (bvref-32 gspace-bytes
+      ((: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)))
            (let ((fixed-up (- (+ value un-fixed-up)
                               gspace-byte-address
                               gspace-byte-offset
-                              sb!vm:n-word-bytes))) ; length of CALL argument
+                              4))) ; "length of CALL argument"
              (setf (bvref-32 gspace-bytes gspace-byte-offset)
                    fixed-up)
              ;; Note relative fixups that point outside the code
              (note-load-time-code-fixup code-object
                                         after-header
                                         value
-                                        kind)))))) ))
+                                        kind))))))))
   (values))
 
 (defun resolve-assembler-fixups ()
 ;;; 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 linkage-info-to-core ()
+(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))
+    (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))
     (cold-set (cold-intern '*!initial-assembler-routines*) result)))
+
 \f
 ;;;; general machinery for cold-loading FASL files
 
                forms))
        (setf (svref *cold-fop-funs* ,code) #',fname))))
 
-(defmacro clone-cold-fop ((name &key (pushp t) (stackp t)) (small-name) &rest forms)
+(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)))
+    (macrolet ((clone-arg () '(read-word-arg)))
       (define-cold-fop (,name :pushp ,pushp :stackp ,stackp) ,@forms))
-    (macrolet ((clone-arg () '(read-arg 1)))
+    (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.
 
 (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))
              (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"
+                    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"
+                    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"
+                    time inheritance depthoid was ~S and current inheritance~%~
+                    depthoid is ~S"
                   name
                   depthoid
                   old-depthoid)))
 (defun cold-load-symbol (size package)
   (let ((string (make-string size)))
     (read-string-as-bytes *fasl-input-stream* string)
-    (cold-intern (intern string package) package)))
+    (cold-intern (intern string package))))
 
 (macrolet ((frob (name pname-len package-len)
             `(define-cold-fop (,name)
                  (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)
+  (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)
      (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)
     result))
 
 (define-cold-fop (fop-int-vector)
-  (let* ((len (read-arg 4))
-        (sizebits (read-arg 1))
+  (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)
     result))
 
 (define-cold-fop (fop-single-float-vector)
-  (let* ((len (read-arg 4))
+  (let* ((len (read-word-arg))
         (result (allocate-vector-object
                  *dynamic*
                  sb!vm:n-word-bits
                  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 sb!vm:n-word-bytes))))
+        (end (+ start (* len 4))))
     (read-bigvec-as-sequence-or-die (descriptor-bytes result)
                                    *fasl-input-stream*
                                    :start start
 #!+long-float (not-cold-fop fop-complex-long-float-vector)
 
 (define-cold-fop (fop-array)
-  (let* ((rank (read-arg 4))
+  (let* ((rank (read-word-arg))
         (data-vector (pop-stack))
         (result (allocate-boxed-object *dynamic*
                                        (+ sb!vm:array-dimensions-offset rank)
                         sb!vm:array-elements-slot
                         (make-fixnum-descriptor total-elements)))
     result))
+
 \f
 ;;;; cold fops for loading numbers
 
 (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 +backend-fasl-file-implementation+
-    (:x86 ; (which has 80-bit long-float format)
-     (prepare-for-fast-read-byte *fasl-input-stream*
-       (let* ((des (allocate-unboxed-object *dynamic* sb!vm:n-word-bits
-                                           (1- sb!vm:long-float-size)
-                                           sb!vm:long-float-widetag))
-             (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-input-stream*
-       (let* ((des (allocate-unboxed-object *dynamic* sb!vm:n-word-bits
-                                           (1- sb!vm:long-float-size)
-                                           sb!vm:long-float-widetag))
-             (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 +backend-fasl-file-implementation+
-    (:x86 ; (which has 80-bit long-float format)
-     (prepare-for-fast-read-byte *fasl-input-stream*
-       (let* ((des (allocate-unboxed-object *dynamic* sb!vm:n-word-bits
-                                           (1- sb!vm:complex-long-float-size)
-                                           sb!vm:complex-long-float-widetag))
-             (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-input-stream*
-       (let* ((des (allocate-unboxed-object *dynamic* sb!vm:n-word-bits
-                                           (1- sb!vm:complex-long-float-size)
-                                           sb!vm:complex-long-float-widetag))
-             (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-widetag)))
 (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
                                    sb!vm:simple-vector-widetag)))
 
 (define-cold-fop (fop-funcall-for-effect :pushp nil)
-  (if (= (read-arg 1) 0)
+  (if (= (read-byte-arg) 0)
       (cold-push (pop-stack)
                 *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 :pushp nil)
-  (let ((obj (svref *current-fop-table* (read-arg 4)))
-       (idx (read-arg 4)))
+  (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 :pushp nil)
-  (let ((obj (svref *current-fop-table* (read-arg 4)))
-       (idx (read-arg 4)))
+  (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 :pushp nil)
-  (let ((obj (svref *current-fop-table* (read-arg 4)))
-       (idx (read-arg 4)))
+  (let ((obj (svref *current-fop-table* (read-word-arg)))
+       (idx (read-word-arg)))
     (write-wordindexed obj
                   (+ idx
                      (ecase (descriptor-lowtag obj)
                   (pop-stack))))
 
 (define-cold-fop (fop-structset :pushp nil)
-  (let ((obj (svref *current-fop-table* (read-arg 4)))
-       (idx (read-arg 4)))
+  (let ((obj (svref *current-fop-table* (read-word-arg)))
+       (idx (read-word-arg)))
     (write-wordindexed obj (1+ idx) (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-arg 4) (pop-stack)))
+  (cold-nthcdr (read-word-arg) (pop-stack)))
 
 (defun cold-nthcdr (index obj)
   (dotimes (i index)
                     (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 :pushp nil)
                (fop-byte-alter-code)
         (arglist (pop-stack))
         (name (pop-stack))
         (code-object (pop-stack))
-        (offset (calc-offset code-object (read-arg 4)))
+        (offset (calc-offset code-object (read-word-arg)))
         (fn (descriptor-beyond code-object
                                offset
                                sb!vm:fun-pointer-lowtag))
 (define-cold-fop (fop-foreign-fixup)
   (let* ((kind (pop-stack))
         (code-object (pop-stack))
-        (len (read-arg 1))
+        (len (read-byte-arg))
         (sym (make-string len)))
     (read-string-as-bytes *fasl-input-stream* sym)
-    (let ((offset (read-arg 4))
+    (let ((offset (read-word-arg))
          (value (cold-foreign-symbol-address-as-integer 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))
+  (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.
 (define-cold-fop (fop-assembler-routine)
   (let* ((routine (pop-stack))
         (des (pop-stack))
-        (offset (calc-offset des (read-arg 4))))
+        (offset (calc-offset des (read-word-arg))))
     (record-cold-assembler-routine
      routine
      (+ (logandc2 (descriptor-bits des) sb!vm:lowtag-mask) offset))
   (let* ((routine (pop-stack))
         (kind (pop-stack))
         (code-object (pop-stack))
-        (offset (read-arg 4)))
+        (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))
+        (offset (read-word-arg))
         (value (descriptor-bits code-object)))
     (do-cold-fixup code-object offset value kind)
     code-object))
   (and (>= (length string) (length tail))
        (string= string tail :start1 (- (length string) (length tail)))))
 
-(defun write-c-header ()
-
-  ;; writing beginning boilerplate
+(defun write-boilerplate ()
   (format t "/*~%")
   (dolist (line
           '("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.)"
             ""
             "This file contains low-level information about the"
             "internals of a particular version and configuration"
             "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_~%")
-  (terpri)
+  (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*)
            "#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))
   (format t "#define CORE_MAGIC 0x~X~%" core-magic)
-  (terpri)
-
+  (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))
     (dolist (package-name '(;; Even in CMU CL, constants from VM
               (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") 6)
+              (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))
+
     (setf constants
          (sort constants
                (lambda (const1 const2)
   ;; 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)
+    (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 {~%"
              (substitute #\_ #\-
        (substitute #\_ #\-
                    (string-downcase (string (sb!vm:slot-name slot))))
        (sb!vm:slot-rest-p slot)))
-      (format t "};~2%"))
+  (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
                  (substitute #\_ #\- (string name))
                  (substitute #\_ #\- (string (sb!vm:slot-name slot)))
                  (- (* (sb!vm:slot-offset slot) sb!vm:n-word-bytes) lowtag)))
-       (terpri))))
+      (terpri)))
     (format t "#endif /* LANGUAGE_ASSEMBLY */~2%"))
 
-  ;; writing static symbol offsets
+(defun write-static-symbols ()
   (dolist (symbol (cons nil sb!vm:*static-symbols*))
     ;; FIXME: It would be nice to use longer names than NIL and
     ;; (particularly) T in #define statements.
              (+ sb!vm:static-space-start
                 sb!vm:n-word-bytes
                 sb!vm:other-pointer-lowtag
-                (if symbol (sb!vm:static-symbol-offset symbol) 0)))))
+                  (if symbol (sb!vm:static-symbol-offset symbol) 0))))))
 
-  ;; Voila.
-  (format t "~%#endif~%"))
 \f
 ;;;; writing map file
 
@@ -2868,7 +2861,18 @@ initially undefined function references:~2%")
 (defvar *core-file*)
 (defvar *data-page*)
 
+;;; 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)
@@ -2877,11 +2881,12 @@ initially undefined function references:~2%")
 (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 ()
@@ -2963,6 +2968,22 @@ initially undefined function references:~2%")
       (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-word new-directory-core-entry-type-code)
       (write-word 17) ; length = (5 words/space) * 3 spaces + 2 for header.
@@ -3020,11 +3041,7 @@ initially undefined function references:~2%")
                      symbol-table-file-name
                      core-file-name
                      map-file-name
-                     c-header-file-name)
-
-  (when (and core-file-name
-            (not symbol-table-file-name))
-    (error "can't output a core file without symbol table file input"))
+                     c-header-dir-name)
 
   (format t
          "~&beginning GENESIS, ~A~%"
@@ -3034,13 +3051,14 @@ initially undefined function references:~2%")
            ;; 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)))
+           (format nil "creating headers in ~S" c-header-dir-name)))
+  
+  (let ((*cold-foreign-symbol-table* (make-hash-table :test 'equal)))
 
-    ;; Read symbol table, if any.
-    (when symbol-table-file-name
-      (load-cold-foreign-symbol-table symbol-table-file-name))
+    (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
@@ -3050,8 +3068,7 @@ initially undefined function references:~2%")
             (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
@@ -3121,6 +3138,7 @@ initially undefined function references:~2%")
        (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)))
@@ -3150,7 +3168,7 @@ initially undefined function references:~2%")
       ;; 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)
+      (foreign-symbols-to-core)
       (finish-symbols)
       (/show "back from FINISH-SYMBOLS")
       (finalize-load-time-value-noise)
@@ -3177,15 +3195,42 @@ 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)))
+       (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)))))))
+       (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))))))