X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fearly-fasl.lisp;h=06c77daebc08ddbc78f4ed527ad8be2baf1dd6a2;hb=d2241edb01a6dad8a7bc1107d28d0873f5f8d83e;hp=1afac330656f007374da8861dd66645a1df64930;hpb=95f5ac2fa70b3f14d052e20f4250166f219dcc39;p=sbcl.git diff --git a/src/code/early-fasl.lisp b/src/code/early-fasl.lisp index 1afac33..06c77da 100644 --- a/src/code/early-fasl.lisp +++ b/src/code/early-fasl.lisp @@ -34,62 +34,67 @@ (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+ 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 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*) +(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) fairly often forget 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+ 40) +;;; (record of versions before 0.7.0 deleted in 0.7.1.41) +;;; 23 = sbcl-0.7.0.1 deleted no-longer-used EVAL-STACK stuff, +;;; causing changes in *STATIC-SYMBOLS*. +;;; 24 = sbcl-0.7.1.19 changed PCL service routines which might be +;;; called from macroexpanded code +;;; 25 = sbcl-0.7.1.41 (and immediately preceding versions, actually) +;;; introduced new functions to check for control stack exhaustion +;;; 26 = sbcl-0.7.2.4 or so added :VARIABLE :MACRO-EXPANSION to INFO codes +;;; 27: (2002-04-08) added MIGHT-CONTAIN-OTHER-TYPES? slot to CTYPE +;;; 28: (2002-05-08) new convention for foreign symbols to support +;;; dynamic loading in OpenBSD +;;; 29: (2002-06-24) removed *!INITIAL-FDEFN-OBJECTS* from static symbols +;;; 30: (2002-07-26) deleted all references to %DETECT-STACK-EXHAUSTION, +;;; which was introduced in version 25, since now control stack +;;; is checked using mmap() page protection +;;; 31: (2002-08-14) changed encoding of PCL internal MAKE-INSTANCE +;;; function names so they're insensitive to whether the class name +;;; is currently external to its package +;;; 32: (2002-09-21) changes in implementation of sequence functions, +;;; causing old utility functions like COERCE-TO-SIMPLE-VECTOR to go away +;;; 33: (2002-10-02) (again) changes in implementation of sequence functions, +;;; causing old utility functions like COERCE-TO-SIMPLE-VECTOR to go away +;;; 34: (2002-10-05) changed implementation of DEFMACRO, so %%DEFMACRO +;;; was deleted +;;; 35: (2002-11-27) (incremented version before 0.7.10 release, +;;; reflecting changes from a week or more ago) changed layout of +;;; CLOS objects to support SXHASH returning values other than 42 +;;; for STANDARD-OBJECT +;;; 36: (2002-12-04) DEFSTRUCT-DESCRIPTION layout changed to accommodate +;;; correct behaviour of colliding accessors +;;; 37: (2002-12-09) changed implementation of DEFINE-COMPILER-MACRO, +;;; deleting %%DEFINE-COMPILER-MACRO +;;; 38: (2003-01-05) changed names of internal SORT machinery +;;; 39: (2003-02-20) in 0.7.12.1 a slot was added to +;;; DEFSTRUCT-SLOT-DESCRIPTION +;;; 40: (2003-03-11) changed value of (SXHASH NIL) + +;;; 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 +;;; 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 +;;; as opposed to C's "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*)) @@ -98,14 +103,14 @@ ;;;; 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")))) @@ -122,7 +127,7 @@ ;;; the FASL file we're reading from (defvar *fasl-input-stream*) -(declaim (type lisp-stream *fasl-input-stream*)) +(declaim (type ansi-stream *fasl-input-stream*)) (defvar *load-print* nil #!+sb-doc