;;; against.
(defparameter *fasl-header-string-start-string* "# FASL")
-;;; the code for a character which terminates a fasl file header
-(defconstant +fasl-header-string-stop-char-code+ 255)
+(macrolet ((define-fasl-format-features ()
+ (let (;; master value for *F-P-A-F-F*
+ (fpaff '(:sb-thread :sb-package-locks :sb-unicode :gencgc :ud2-breakpoints)))
+ `(progn
+ ;; a list of *(SHEBANG-)FEATURES* flags which affect
+ ;; binary compatibility, i.e. which must be the same
+ ;; between the SBCL which compiles the code and the
+ ;; SBCL which executes the code
+ ;;
+ ;; This is a property of SBCL executables in the
+ ;; abstract, not of this particular SBCL executable,
+ ;; so any flag in this list may or may not be present
+ ;; in the *FEATURES* list of this particular build.
+ (defparameter *features-potentially-affecting-fasl-format*
+ ',fpaff)
+ ;; a string representing flags of *F-P-A-F-F* which
+ ;; are in this particular build
+ ;;
+ ;; (A list is the natural logical representation for
+ ;; this, but we represent it as a string because
+ ;; that's physically convenient for writing to and
+ ;; reading from fasl files, and because we don't
+ ;; need to do anything sophisticated with its
+ ;; logical structure, just test it for equality.)
+ (defparameter *features-affecting-fasl-format*
+ ,(let ((*print-pretty* nil))
+ (prin1-to-string
+ (sort
+ (copy-seq
+ (intersection sb-cold:*shebang-features* fpaff))
+ #'string<
+ :key #'symbol-name))))))))
+ (define-fasl-format-features))
-;;; This value should be incremented when the system changes in such
-;;; a way that it will no longer work reliably with old fasl files.
-(defconstant +fasl-file-version+ 16)
-;;; 2 = sbcl-0.6.4 uses COMPILE-OR-LOAD-DEFGENERIC.
-;;; 3 = sbcl-0.6.6 uses private symbol, not :EMPTY, for empty HASH-TABLE slot.
-;;; 4 = sbcl-0.6.7 uses HAIRY-DATA-VECTOR-REF and HAIRY-DATA-VECTOR-SET
-;;; when array headers or data element type uncertainty exist, and
-;;; uses DATA-VECTOR-REF and DATA-VECTOR-SET only for VOPs. (Thus,
-;;; full calls to DATA-VECTOR-REF and DATA-VECTOR-SET from older
-;;; fasl files would fail, because there are no DEFUNs for these
-;;; operations any more.)
-;;; 5 = sbcl-0.6.8 has rearranged static symbols.
-;;; 6 = sbcl-0.6.9, got rid of non-ANSI %DEFCONSTANT/%%DEFCONSTANT stuff
-;;; and deleted a slot from DEBUG-SOURCE structure.
-;;; 7 = around sbcl-0.6.9.8, merged SB-CONDITIONS package into SB-KERNEL
-;;; 8 = sbcl-0.6.10.4 revived Gray stream support, changing stream layouts.
-;;; 9 = deleted obsolete CONS-UNIQUE-TAG bytecode in sbcl-0.6.11.8
-;;; (somewhere in here also changes to AND and OR CTYPE layouts)
-;;; 10 = new layout for CONDITION in sbcl-0.6.11.38
-;;; 11 = (a) new helper functions for MAKE-LOAD-FORM (HASH-TABLE) in
-;;; sbcl-0.6.12.11
-;;; (b) new address space constants for OpenBSD in 0.6.12.17
-;;; (doesn't need separate version from (a) because the
-;;; OpenBSD port was broken from sometime before 0.6.12.11
-;;; until the address space was changed)
-;;; 12 = sbcl-0.6.12.22 added new SB-FASL package
-;;; 13 = sbcl-0.6.12.28 removed some elements from *STATIC-SYMBOLS*
-;;; 14 = sbcl-0.6.12.29 removed more elements from *STATIC-SYMBOLS*
-;;; 15 = sbcl-0.6.12.33 changed the layout of STREAM
-;;; 16 = sbcl-0.pre7.15 changed the layout of PRETTY-STREAM
+;;; the code for a character which terminates a fasl file header
+(def!constant +fasl-header-string-stop-char-code+ 255)
+
+;;; This value should be incremented when the system changes in such a
+;;; way that it will no longer work reliably with old fasl files. In
+;;; practice, I (WHN) have often forgotten to increment it for CVS
+;;; versions which break binary compatibility. But it certainly should
+;;; be incremented for release versions which break binary
+;;; compatibility.
+(def!constant +fasl-file-version+ 78)
+;;; (description of versions before 0.9.0.1 deleted in 0.9.17)
+;;; 56: (2005-05-22) Something between 0.9.0.1 and 0.9.0.14. My money is
+;;; on 0.9.0.6 (MORE CASE CONSISTENCY).
+;;; 57: (2005-06-12) Raw slot rearrangement in 0.9.1.38
+;;; 58: (2005-08-16) Multiple incompatible changes between 0.9.3 and 0.9.3.60
+;;; 59: (2005-09-18) METAOBJECT implementation, removal of INSTANCE and
+;;; FUNCALLABLE-INSTANCE classes.
+;;; 60: (2005-10-24) Bumped for 0.9.6
+;;; 61: (2005-11-06) Improved source location recording added extra parameters
+;;; to multiple %DEFMUMBLE functions.
+;;; 62: (2005-12-30) Make the count of FASL header counted strings
+;;; a 32-bit value also on 64-bit platforms.
+;;; 63: (2006-01-27) Shuffle storage classes around to reduce the error
+;;; trap information size on RISCy platforms.
+;;; 64: (2006-03-24) New calling convention for unknown-values on x86 and
+;;; x86-64. Also (belatedly) PPC/gencgc, including :gencgc on FPAFF.
+;;; 65: (2006-04-11) Package locking interface changed.
+;;; 66: (2006-05-13) Fopcompiler
+;;; 67: (2006-07-25) Reports on #lisp about 0.9.13 fasls being invalid on
+;;; 0.9.14.something
+;;; 68: (2006-08-14) changed number of arguments of LOAD-DEFMETHOD
+;;; 69: (2006-08-17) changed validity of various initargs for methods
+;;; 70: (2006-09-13) changes to *PSEUDO-ATOMIC* on x86 and x86-64
+;;; 71: (2006-11-19) CLOS calling convention changes
+;;; 72: (2006-12-05) Added slot to the primitive function type
+;;; 73: (2007-04-13) Changed a hash function
+;;; 74: (2007-06-05) UNWIND-TO-FRAME-AND-CALL
+;;; 75: (2007-08-06) FD-STREAM layout changes
+;;; 76: (2007-10-05) MUTEX layout changes
+;;; 77: (2007-11-08) Essentially obsolete fasl-file-version, fasls are now
+;;; considered compatible only when the version numbers of the compiling
+;;; SBCL instance is exactly the same as the one of the loading instance.
+;;; Further fasl-file-version bumps should only be done for real changes
+;;; in the fasl format, not for changes in function/macro signatures or
+;;; lisp data structures.
+;;; 78: (2010-04-02) Add FOP-{SMALL-,}NAMED-PACKAGE, remove FOP-NORMAL-LOAD
+;;; and FOP-MAYBE-COLD-LOAD.
;;; the conventional file extension for our fasl files
(declaim (type simple-string *fasl-file-type*))
(defvar *fasl-file-type* "fasl")
-
-;;; This is a sort of pun that we inherited from CMU CL. For ordinary,
-;;; non-byte-coded fasl files, the "implementation" is basically the
-;;; CPU. For byte-coded fasl files, the "implementation" is whether
-;;; the data are stored big-endianly or little-endianly.
-(defun backend-byte-fasl-file-implementation ()
- *backend-byte-order*)
\f
-;;; information about below-Lisp-level linkage
-;;;
+;;;; information about below-Lisp-level linkage
+
;;; Note:
;;; Assembler routines are named by full Lisp symbols: they
;;; have packages and that sort of native Lisp stuff associated
;;; with them. We can compare them with EQ.
-;;; Foreign symbols are named by Lisp strings: the Lisp package
-;;; system doesn't extend out to symbols in languages like C.
-;;; We want to use EQUAL to compare them.
-;;; *STATIC-FOREIGN-SYMBOLS* are static as opposed to "dynamic" (not
-;;; as opposed to "extern"). The table contains symbols known at
-;;; the time that the program was built, but not symbols defined
-;;; in object files which have been loaded dynamically since then.
-(declaim (type hash-table *assembler-routines* *static-foreign-symbols*))
+(declaim (type hash-table *assembler-routines*))
(defvar *assembler-routines* (make-hash-table :test 'eq))
-(defvar *static-foreign-symbols* (make-hash-table :test 'equal))
+
\f
;;;; the FOP database
-(declaim (simple-vector *fop-names* *fop-functions*))
+(declaim (simple-vector *fop-names* *fop-funs*))
;;; a vector indexed by a FaslOP that yields the FOP's name
(defvar *fop-names* (make-array 256 :initial-element nil))
;;; a vector indexed by a FaslOP that yields a function of 0 arguments
;;; which will perform the operation
-(defvar *fop-functions*
+(defvar *fop-funs*
(make-array 256
- :initial-element (lambda ()
- (error "corrupt fasl file: losing FOP"))))
-\f
-;;;; other miscellaneous loading-related stuff
-
+ :initial-element (lambda ()
+ (error "corrupt fasl file: losing FOP"))))
\f
;;;; variables
;;; the FASL file we're reading from
(defvar *fasl-input-stream*)
-(declaim (type lisp-stream *fasl-input-stream*))
-
-(defvar *load-print* nil
- #!+sb-doc
- "the default for the :PRINT argument to LOAD")
-(defvar *load-verbose* nil
- ;; Note that CMU CL's default for this was T, and ANSI says it's
- ;; implementation-dependent. We choose NIL on the theory that it's
- ;; a nicer default behavior for Unix programs.
- #!+sb-doc
- "the default for the :VERBOSE argument to LOAD")
+(declaim (type ansi-stream *fasl-input-stream*))
(defvar *load-code-verbose* nil)
-
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