X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fearly-fasl.lisp;h=6c60a2af2c3cc07607c6a3562776d3326363bf76;hb=18dc0069cd514c976042766ab9a785c970fe1603;hp=b5c78498627da9fe8b3f12a858627f572a11d349;hpb=148cf41d8ad17dba56509b0c901cfd1b211dbc1d;p=sbcl.git diff --git a/src/code/early-fasl.lisp b/src/code/early-fasl.lisp index b5c7849..6c60a2a 100644 --- a/src/code/early-fasl.lisp +++ b/src/code/early-fasl.lisp @@ -33,81 +33,115 @@ ;;; 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) - -;;; 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+ 12) -;;; 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 +(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)) -;;; the conventional file extension for fasl files on this -;;; architecture, e.g. "x86f" -(declaim (type (or simple-string null) *backend-fasl-file-type*)) -(defvar *backend-fasl-file-type* nil) - -;;; 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*) +;;; 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") -;;; 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)) + ;;;; 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")))) - -;;;; other miscellaneous loading-related stuff - + :initial-element (lambda () + (error "corrupt fasl file: losing FOP")))) ;;;; variables @@ -118,17 +152,6 @@ ;;; 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) -