1 ;;;; -*- coding: utf-8; fill-column: 78 -*-
2 changes relative to sbcl-1.0.55:
3 * bug fix: SB-SIMPLE-STREAMS signals an error for bogus :CLASS arguments in
4 OPEN. (lp#969352, thanks to Kambiz Darabi)
5 * bug fix: CASE normal-clauses do not allow T and OTHERWISE as keys.
7 * bug fix: (SETF (FIND-CLASS X) NIL) removed proper name of the underlying
8 classoid even if X was not the proper name of the class. (lp#941102)
10 ** improved docstrings: REPLACE (lp#965592)
12 changes in sbcl-1.0.56 relative to sbcl-1.0.55:
13 * bug fix: fix copy-structure. When copying from stack to heap, garbage
14 could end up in the heap making GC unhappy.
15 (Thanks to James Knight, lp#911027)
17 ** SBCL can now be built using Clang.
18 ** ASDF has been updated 2.20.
19 * bug fix: compiler errors when weakening hairy integer types. (lp#913232)
20 * bug fix: don't complain about a too-hairy lexical environment for inlining
21 when the function has never been requested for inlining. (lp#963530)
23 changes in sbcl-1.0.55 relative to sbcl-1.0.54:
24 * enhancements to building SBCL using make.sh:
25 ** --fancy can be specified to enable all supported feature enhancements.
26 ** --with-<feature> and --without-<feature> can be used to specify
27 which features to build with.
28 ** --arch option can be used to specify the architecture to build for.
29 (Mainly useful for building 32-bit SBCL's on x86-64 hosts, not
30 full-blows cross-compilation.)
31 * enhancement: extended package prefix syntax <pkgname>::<form-in-package>
32 which allows specifying name of the default interning package for the
34 * enhancement: when *READ-EVAL* is true, arrays with element type other than
35 T can be printed readably using #.-based syntax. (Thanks to Robert Brown)
36 * enhancement: MAKE-ALIEN signals a storage-condition instead of returning a
37 null alien when malloc() fails. (lp#891268)
38 * enhancement: SB-EXT:PRINT-UNREADABLY restart for PRINT-NOT-READABLE
39 conditions can be conveniently accessed through function with the same
40 name, analogously to CONTINUE.
41 * enhancement: SB-EXT:*SUPPRESS-PRINT-ERRORS* can be used to suppress errors
42 from the printer by type, causing an error marker to be printed instead.
43 (Thanks to Attila Lendvai)
44 * enhancement: BACKTRACE and DESCRIBE now bind *PRINT-CIRCLE* to T, and
45 generally behave better when errors occur during printing.
46 * enhancement: the test runner now takes a --report-skipped-tests argument
47 to report the individual tests skipped as well as the number of skipped
49 * enhancement: undefined functions now appear in backtraces as ("undefined
50 function") instead of ("bogus stack frame") on x86oids.
51 * enhancement: detected deadlocks no longer cause stderr to be spammed, and
52 deadlock errors are reported in an easier-to-decipher manner.
53 * enhancement: DESCRIBE on type designators reports the expansion in more
55 * enhancement: SBCL now provides either an explicit :BIG-ENDIAN or
56 :LITTLE-ENDIAN in *FEATURES*, instead of :BIG-ENDIAN being implied by lack
57 of the :LITTLE-ENDIAN feature. (Thanks to Luís Oliveira, lp#901661)
58 * enhancement: better disassembly of segment-prefixes on x86 and other
59 instruction prefixes (e.g. LOCK) on x86 and x86-64.
60 * optimization: FIND and POSITION on bit-vectors are orders of magnitude
61 faster (assuming KEY and TEST are not used, or are sufficiently trivial.)
62 * optimization: SUBSEQ on vectors of unknown element type is substantially
64 * optimization: specialized arrays with non-zero :INITIAL-ELEMENT can
65 be stack-allocated. (lp#902351)
66 * optimization: the compiler is smarter about representation selection for
67 floating point constants used in full calls.
68 * optimization: the compiler no longer refuses to coerce large fixnums to
69 single floats inline, except on x86 where this limitation is still
71 * bug fix: deadlock detection could report the same deadlock twice, for
72 two different threads. Now a single deadlock is reported exactly once.
73 * bug fix: interval-arithmetic division during type derivation did not
74 account for signed zeros.
75 * bug fix: compiler error when typechecking a call to a function with
76 non-constant keyword arguments.
77 * bug fix: misoptimization of TRUNCATE causing erratic behaviour.
78 * bug fix: condition slot accessors no longer cause undefined function
79 style-warnings when used in the :REPORT clause of the DEFINE-CONDITION
80 form that defines them. (lp#896379)
81 * bug fix: DEFGENERIC warns about unsupported declarations, as specified
83 * bug fix: SUBTYPEP tests involving forward-referenced classes no longer
84 bogusly report NIL, T.
85 * bug fix: bogus style-warnings for DEFMETHOD forms that both declared some
86 required arguments ignored and performed assignments to others.
88 * bug fix: *EVALUATOR-MODE* :COMPILE treated (LET () ...) identically
89 to (LOCALLY ...) leading to internally inconsistent toplevel-formness.
90 * bug fix: non-toplevel DEFSTRUCT signaled a style warning for unknown type.
91 * bug fix: redefining a function whose previous definition contained an
92 unknown type no longer causes a style-warning. (lp#806243)
93 * bug fix: undefined functions now appear in backtraces as ("undefined
94 function") instead of ("bogus stack frame") on non-x86oids.
95 * bug fix: backtraces are no longer cut off at ("undefined function") when
96 called under certain circumstances (involving a caller-allocated stack
98 * bug fix: RUN-PROGRAM leaked a file-descriptor per call on non-Windows
99 systems. (regression since 1.0.53)
100 * bug fix: GC deadlocks from dladdr() on certain platforms.
101 * bug fix: broken standard streams no longer automatically cause recursive
102 errors on debugger entry.
103 * bug fix: build ignored --dynamic-space-size=<size> argument to make.sh
104 (regression since 1.0.53)
105 * bug fix: attempts to stack allocate a required argument to a function with
106 an external entry point caused compiler-errors.
107 * bug fix: compiler notes for failed stack allocation for a function argument
108 no longer claim to be unable to stack allocate the function.
109 * bug fix: COERCE now signals a type-error on several coercions to
110 subtypes of CHARACTER that are forbidden according to ANSI. (lp#841312)
111 * bug fix: missing failure-to-stack-allocate compiler notes for some
112 forms of MAKE-ARRAY with dynamic-extent. (lp#902351)
113 * bug fix: some of the compile-time side-effects of DEFCLASS were not caught
116 changes in sbcl-1.0.54 relative to sbcl-1.0.53:
117 * minor incompatible changes:
118 ** RENAME-FILE on a symbolic links used to rename the linked-to file
120 ** DELETE-DIRECTORY on symbolic link to a directory used to delete the
121 directory, but now signal an error instead. Use TRUENAME to resolve the
122 pathname if you wish to delete the linked directory, and DELETE-FILE if
123 you wish to delete the
124 ** The internal SB-THREAD::SPINLOCK API has been deprecated, and using
125 symbols associated with it will trigger a compile-time warning.
126 * thread-related enhancements:
127 (This work has been funded by the SBCL Threading 2011 IndieGoGo campaign.
128 Many thanks to generous donors!)
129 ** Threading is now more reliable on non-Linux platforms. We still don't
130 consider threads on non-Linux platforms good enough to enable them by
131 default, but they're in a clearly better shape now.
132 ** Deadlines supported now on all platforms.
133 ** All blocking functions in the threading API now have a :TIMEOUT
135 ** Semaphore notification objects have been added to SB-THREAD.
136 ** SB-CONCURRENCY contrib now includes Allegro-style GATE objects.
137 ** SB-EXT:COMPARE-AND-SWAP has been extended to support SLOT-VALUE,
138 STANDARD-INSTANCE-ACCESS, and FUNCALLABLE-STANDARD-INSTANCE-ACCESS.
139 ** Users can now defined new places usable with SB-EXT:COMPARE-AND-SWAP
140 using an API anologous to defining new SETFable places.
141 * GC-related enhancements and bug fixes:
142 ** --dynamic-space-size and --control-stack-size now understand Kb, Mb,
143 and Gb suffixes. Default is megabytes as before.
144 ** on GENCGC targets, the default dynamic space size is now 512Mb for
145 32-bit systems, and 1Gb for 64-bit systems. (OpenBSD/x86-64 is the only
146 exception, defaulting to mere 444Mb to fit under default ulimits.) The
147 new defaults are in place to prevent hitting swap on low-end systems.
148 Use build-time option --dynamic-space-size to build an SBCL with
149 another default, or the runtime option to adjust the size at startup: a
150 good size is at most equal to the amount of physical memory the system
152 ** on GENCGC targets, nursery and generation sizes now default to 5% of
154 ** on GENCGC targets, SB-KERNEL:MAKE-LISP-OBJ no longer categorically
155 refuses to create SIMPLE-FUN objects.
156 ** on 64-bit GENCGC targets, setting the nursery size above 4Gb now works.
158 ** on CHENEYGC targets, SB-KERNEL:MAKE-LISP-OBJ now does the same
159 validation of pointer objects as GENCGC does, instead of a
160 comparatively weak bounds-check against the heap spaces.
161 * SB-BSD-SOCKETS bug fixes:
162 ** GET-PROTOCOL-BY-NAME had a significant memory leak.
163 ** GET-HOST-BY-NAME and GET-HOST-BY-ADDRESS small amounts of memory on
164 systems with getaddrinfo().
165 ** GET-HOST-BY-NAME and GET-HOST-BY-ADDRESS weren't thread or interrupt
166 safe outside systems with getaddrinfo().
167 * enhancement: ASDF has been updated 2.019.
168 * enhancement: special-case TCO prevention for functions which never return
169 extended to untrusted types, keeping one more frame's worth of debug
170 information around in many cases.
171 * enhancement: debug-names of anonymous and local function are more
172 descriptive. Affects backtraces and SB-SPROF results. (lp#805100)
173 * enhancement: on win32, ABS of complex floats guards better against
174 overflows. (lp#888410)
175 * enhancement: RUN-PROGRAM now distinguishes exec() failing from child
176 process exiting with code 1. (lp#676987)
177 * enhancement: convenience function SET-SBCL-SOURCE-LOCATION for informing
178 the system where on the filesystem the SBCL sources themselves are
179 located. (Thanks to Zach Beane)
180 * enhancement: the compiler is now able to derive tighter bounds for
181 floating point numbers in some cases. (Thanks to Lutz Euler, lp#894498)
182 * bug fix: on 64-bit targets, atomic-incf/aref does index computation
183 correctly, even on wide-fixnum builds. (lp#887220)
184 * bug fix: (DIRECTORY "foo/*/*.*") did not follow symlinks in foo/ that
185 resolved to directories.
186 * bug fix: type mismatch when assigning to lexical variables no longer
187 result in fasl-dumping internal type objects. (lp#890750)
188 * bug fix: type mismatch on (SETF AREF) and function return values no
189 longer result in fasl-dumping internal type objects.
190 * bug fix: With several combinations of argument types, for example (EXPT
191 <integer> <(complex double)>), EXPT now uses double-precision throughout
192 instead of partially calculating only to single-precision. (lp#741564;
193 thanks to Lutz Euler)
194 * bug fix: SYMBOL-VALUE-IN-THREAD is no longer able to construct bogus
195 objects when interrupted by GC on PPC.
197 changes in sbcl-1.0.53 relative to sbcl-1.0.52:
198 * enhancement: on 64-bit targets, in src/compiler/generic/early-vm.lisp,
199 the parameter n-fixnum-tag-bits may now vary from 1 (fixnum =
200 (signed-byte 63)) to 3 (fixnum = (signed-byte 61)) at build-time.
201 * enhancement: SB-EXT:WAIT-FOR allows waiting for arbitrary events.
202 * minor(?) incompatible(?) change: The default fixnum width on 64-bit
203 targets is now 63 bits (up from 61).
204 * enhancement: DESCRIBE now reports a lambda-list and source location
205 for complext setf-expanders.
206 * bug fix: PUSH, PUSHNEW, POP, REMF, INCF, DECF, DEFINE-MODIFY-MACRO,
207 GETF, LOGBITP, LDB, and MASK-FIELD now arrange for non-primary values
208 of multiple-valued places to be set to NIL, instead of signalling an
209 error (per a careful reading of CLHS 5.1.2.3).
210 * bug fix: floating-point traps now work on darwin/x86 and /x86-64.
211 * bug fix: repair crash in x86oid darwin signal handling emulation
212 when built with certain compilers.
213 * bug fix: SB-ROTATE-BYTE misrotated to the right when using constant
214 rotation arguments on x86-64. (lp#882151)
215 * bug fix: low-level control flow optimisations could result in bogus
216 code in functions with tail and non-tail calls to local functions on
218 * bug fix: on SPARC/:sb-unicode, avoid crashing the assembler by trying
219 to emit literal characters > (code-char 4095), for comparisons with
221 * bug fix: ROOM reported only the low 32 bits of dynamic space usage
222 on 64 bit platforms. (lp#881445)
223 * bug fix: DELETE-FILE did not MERGE-PATHNAMES, making it possible to
224 delete the wrong file when using relative pathnames. (lp#882877)
225 * bug fix: optimized SEARCH of vectors-on-vectors mishandled zero-length
226 sequences and :KEY NIL.
228 changes in sbcl-1.0.52 relative to sbcl-1.0.51:
229 * enhancement: ASDF has been updated to version 2.017.
230 * enhancement: the --core command line option now accepts binaries with
232 * enhancement: when built with :sb-core-compression, core files (regular
233 or executable) can be compressed with zlib. Use the :COMPRESSION
234 argument to SAVE-LISP-AND-DIE to specify a compression level.
235 * enhancement: --[no-]merge-core-pages determines whether the runtime
236 hints the operating system that identical core pages between SBCL
237 processes should share the same physical memory. Default is to only
238 enable this for compressed cores.
239 * optimization: SLEEP no longer conses.
240 * optimization: *PRINT-PRETTY* no longer slows down printing of strings
241 or bit-vectors when using the standard pretty-print dispatch table.
242 * bug fix: non-function FTYPE declarations no longer cause a compiler-error.
244 * bug fix: compiler-errors causes by MEMBER types in conjunction with with
245 AREF, CHAR, etc. (lp#826971)
246 * bug fix: compiler-errors causes by integer arguments with composed of
247 multiple ranges to ARRAY-IN-BOUNDS-P. (lp#826970)
248 * bug fix: ,@ and ,. now signal a read-time error for certain non-list
249 expressions. (lp#770184)
250 * bug fix: complex single float literals are correctly aligned when used
251 as arguments of arithmetic operators.
252 * bug fix: on 32-bit platforms, rounding of double floats larger than a
253 fixnum is correct. (reported by Peter Keller)
254 * bug fix: stray FD-HANDLERs are no longer left lying around after unwinds
255 from RUN-PROGRAM. (lp#840190, reported by Dominic Pearson; fix from Max
257 * bug fix: redefining classes such that slots with custom allocation are
258 added or removed works again.
260 changes in sbcl-1.0.51 relative to sbcl-1.0.50:
261 * minor incompatible change: SB-BSD-SOCKET socket streams no longer
262 participate in SERVE-EVENT by default: pass :SERVE-EVENTS T to
263 MAKE-SOCKET-STREAM if using SERVE-EVENT.
264 * enhancement: added support for socket keepalive timeout intervals
265 and probe counts on Linux.
266 * enhancement: building 32-bit SBCL on Linux/x86-64 now works without a
267 chroot. (Use "SBCL_ARCH=x86 sh make.sh" to build.)
268 * enhancement: added new toplevel options --quit and --non-interactive
270 * enhancement: the Windows port of SBCL now builds and runs on Wine
271 (thanks to Anton Kovalenko).
272 * enhancement: more, and more correct, SSE instruction definitions on
273 x86-64 (thanks to Alexander Gavrilov).
274 * enhancement: SB-EXT:SPIN-LOOP-HINT assembles to an instruction designed
275 to help the processor execute spin loops, when applicable. Currently
276 implemented for x86 and x86-64.
277 * optimization: unsigned integer divisions by a constant are implemented
278 using multiplication (affects CEILING, FLOOR, TRUNCATE, MOD, and REM.)
279 * optimization: improved type-derivation for LOAD-TIME-VALUE.
280 * bug fix: correct RIP offset calculation in SSE comparison and shuffle
281 instructions. (lp#814688)
282 * bug fix: COERCE to unfinalized extended sequence classes now works.
283 (reported by Jan Moringen; lp#815155)
284 * bug fix: a compiler error during typecheck generation, reported by Eric
286 * bug fix: obsolete instance protocol fires when shared slots are added
288 * bug fix: fixed-format floating point printing with scaling factors.
290 * bug fix: using GCC >= 4.6 to build SBCL on x86 no longer breaks
291 backtraces. (lp#818460)
292 * bug fix: better backtraces for interrupted syscall frames on x86.
294 * bug fix: SSE comparison instructions can be disassembled even when one
295 operand is in memory. (lp#814702)
296 * bug fix: incomplete writes when not using SERVE-EVENTS. (lp#820599)
297 * bug fix: MULTIPLE-VALUE-BIND + VALUES -> LET conversion could lose derived
298 type information associated with the VALUES form.
299 * bug fix: broken warnings/errors for type-errors involving LOAD-TIME-VALUE
301 * bug fix: OPEN :IF-EXISTS :APPEND now returns correct FILE-POSITION before
302 first write (lp#561642).
303 * bug fix: compiled closures from EVAL could not be DESCRIBEd. (lp#824974)
304 * bug fix: bound propagation involving conversion of large bignums to
305 floats no longer signals a SIMPLE-TYPE-ERROR, reported by Lutz Euler.
307 * bug fix: &REST to &MORE conversion still works in unsafe call to known
308 functions; reported by Lutz Euler (lp#826459).
309 * bug fix: bogus deadlocks from interrupts and GCs. (lp#807475, regression
312 changes in sbcl-1.0.50 relative to sbcl-1.0.49:
313 * enhancement: errors from FD handlers now provide a restart to remove
314 the offending handler.
315 * enhancement: SB-INTROSPECT:FIND-DEFINITION-SOURCE now works on structure
317 * enhancement: location of user or system initialization file can now easily
318 be customized for saved cores. See: SB-EXT:*USERINIT-PATHNAME-FUNCTION*
319 and SB-EXT:*SYSINIT-PATHNAME-FUNCTION*.
320 * enhancement: SB-EXT:MAKE-THREAD accepts an argument list designator for
321 the thunk, as a keyword argument, :arguments.
322 * enhancement: constraint propagation is simplified (and sped up) when
323 COMPILATION-SPEED > SPEED.
324 * enhancement: SB-ALIEN exports alien type specifiers SIZE-T and OFF-T.
325 * enhancement: debugger understands &MORE arguments better.
326 * optimization: extracting bits of a single-float on x86-64 has been
327 optimized. (lp#555201)
328 * optimization: MAP and MAP-INTO are more efficient for non-simple vectors,
329 when (> SPEED SPACE).
330 * optimization: local call trampolines (x86 and x86-64) are emitted
332 * optimization: implicit value cells for dynamic-extent closed-over bindings
333 on x86 and x86-64 can hold unboxed values as well.
334 * meta-optimization: improved compilation speed, especially for large
335 functions. (lp#792363 and lp#394206)
336 * bug fix: bound derivation for floating point operations is now more
337 careful about rounding possibly closing open bounds. (lp#793771)
338 * bug fix: SB-POSIX:SYSCALL-ERROR's argument is now optional. (accidental
339 backwards incompatible change in 1.0.48.27)
340 * bug fix: occasional debugger errors in when a type-error occured in a
341 function with dynamic-extent &rest list.
342 * bug fix: &optional and &key supplied-p arguments in DEFSTRUCT
343 boa-construtors can be used to initialized structure slots.
344 * bug fix: FMAKUNBOUND removes the MACRO-FUNCTION, should one exist.
345 (lp#795705, regression)
346 * bug fix: DIRECTORY works better on logical pathnames.
347 * bug fix: RUN-PROGRAM no longer fails spuriously when argument strings
348 are of the order of ARRAY-TOTAL-SIZE-LIMIT. (lp#787237)
349 * bug fix: the compiler no longer constant-folds NaNs in
350 MAKE-{SINGLE,DOUBLE}-FLOAT. (lp#486812)
351 * bug fix: FORMAT now handles floating point rounding correct, eg.
352 (format nil "~,1F" 0.01) => "0.0" instead of "0.01" as previously.
354 * bug fix: style warning during lambda-list introspection of generic
355 functions with both optional and key argments.
356 * bug fix: regalloc doesn't barf on unused TNs due to type-directed constant
358 * bug fix: Fixed an off-by-one in MAP-ALLOCATED-OBJECTS that might have caused
361 changes in sbcl-1.0.49 relative to sbcl-1.0.48:
362 * minor incompatible change: WITH-LOCKED-HASH-TABLE no longer disables
363 interrupts for its body.
364 * enhancement: source locations are now available for files loaded as
365 source, compile-time-too evaluation, and initialization files.
366 * enhancement: WITH-COMPILATION-UNIT :SOURCE-NAMESTRING allows providing
367 virtual source-file information, eg. overriding input-file of COMPILE-FILE
368 when a temporary file is used for compilation.
369 * enhancement: ASDF has been updated to version 2.015.3.
370 * enhancement: backtraces involving frames from the default evaluator are
372 * enhancement: RUN-PROGRAM works with user-defined binary input and output
374 * enhancement: more informative compile-time warnings and runtime errors for
375 type-errors detected at compile-time.
376 * enhancement: deadlock detection for mutexes and spinlocks.
377 * enhancement: dynamic-extent for &rest lists stack allocate only their
378 spines, not their argumets. While portable code should not rely on this,
379 particularly in combination with inlining, it should make dynamic-extent
380 easier to use safely.
381 * enhancement: SB-POSIX improvements:
382 ** WNOHANG and WUNTRACED are exported.
383 ** SYSCALL-ERROR now also provides the name of the failing system call.
384 * enhancement: --script improvements:
385 ** errors on standard input, output, and error streams are handled and
386 cause scripts to exit silently, making them easier to use in shell
388 ** backtraces from scripts now go to standard error instead of the
389 terminal even if one is available.
390 ** --script can be an argument, causing the script to be loaded from
392 * enhancement: MAKE-ALIEN-STRING provides an easy way to transport lisp
393 strings to foreign memory.
394 * enhancement: (SETF GC-LOGFILE) allows logging garbage collections to
395 a file, making it easier to understand heap dynamics.
396 * optimization: using a &REST argument only in APPLY or VALUES-LIST calls
397 allows the compiler to automatically elide rest-list allocation so long as
398 the call sites are in functions that the compiler knows cannot escape.
400 * optimization: CALL-NEXT-METHOD using explicit arguments is faster,
401 especially in safe code when none of the required arguments have changed
403 * bug fix: blocking reads from FIFOs created by RUN-PROGRAM were
404 uninterruptible, as well as blocking reads from socket streams created
405 with for which :SERVE-EVENTS NIL. (regression from 1.0.42.43)
406 * bug fix: SET-SYNTAX-FROM-CHAR now removes dispatch-macro character syntax
407 from the to-char if the from-char is not a dispatch-macro character.
408 * bug fix: references to undefined variables in function calls that are
409 optimized away now signal a runtime error. (lp#722734)
410 * bug fix: miscompilation of MULTIPLE-VALUE-CALL when asserting derived
411 types from a function defined in the same file. (regression from
413 * bug fix: TRULY-THE forms are now macroexpandable and setf-expandable.
415 * bug fix: spurious errors during QUIT when standard streams were closed.
417 changes in sbcl-1.0.48 relative to sbcl-1.0.47:
418 * incompatible change: SB!KERNEL:INSTANCE-LAMBDA, deprecated for over five
419 years, is now no longer supported.
420 * enhancement: read() and write() have been added to SB-POSIX.
421 * enhancement: types of DEFSTRUCT constructors are proclaimed more
422 accurately, allowing better typechecking of call-sites.
423 * enhancement: errors during compile-time-too processing (i.e. EVAL-WHEN)
424 are no longer caught. (reverted to pre 1.0.34 behaviour)
425 * optimization: slightly faster ISQRT. (lp#713343)
426 * bug fix: better support for Solaris /bin/sh in sh-based tests.
427 * bug fix: TRACE behaves better when attempting to trace undefined
428 functions. (lp#740717)
429 * bug fix: missed optimizations for (FUNCALL (LAMBDA ...) ...) in comparison
430 to (FUNCALL #'(LAMBDA ...) ...).
431 * bug fix: ((LAMBDA ...) ...) forms with invalid argument counts resulted in
432 a compile-time error. (lp#720382)
433 * bug fix: forms such as (FUNCALL (FUNCTION NAME OOPS) ...) were compiled
435 * bug fix: less verbose source forms for functions from EVAL. (lp#747485)
436 * bug fix: sense of SLOT-BOUNDP-USING-CLASS was inverted in a MAKE-INSTANCE
437 optimization. (regression from 1.0.45.18/1.0.46.15)
438 * bug fix: package locks did not protects against compile-time side-effects
439 of DEFUN. (lp#675584)
440 * bug fix: --dynamic-space-size argument is validated more carefully.
442 * bug fix: memory fault from printing a malformed simple-condition.
444 * bug fix: redefining classes so that slot-definition classes change now
445 engages the obsolete instance protocol. (lp#766271)
446 * bug fix: constant improper lists could break source coverage recording.
448 * bug fix: compiling calls to eg. MEMBER with massive constant list arguments
451 changes in sbcl-1.0.47 relative to sbcl-1.0.46:
452 * bug fix: fix mach port rights leaks in mach exception handling code on
453 darwin/x86 and /x86-64. (thanks to Willem Oudshoorn for motivation and the
455 * enhancement: --script muffles style-warnings and compiler notes. (lp#677779)
456 * enhancement: redefinition warnings for macros from different files. (lp#434657)
457 * enhancement: better MACHINE-VERSION on Darwin x86 and x86-64. (lp#668332)
458 * enhancement: (FORMAT "foo" ...) and similar signal a compile-time warning. (lp#327223)
459 * enhancement: no more "in: LAMBDA NIL" messages from the compiler for forms
460 processed using EVAL -- now the appropriate toplevel form is reported instead.
461 * enhancement: more legible style-warnings for inappropriate IGNORE and IGNORABLE
462 declarations. (lp#726331)
463 * enhancement: :NOT-NULL option has been added to alien C-STRING type to indicate
464 that NIL/NULL is excluded from the type.
465 * enhancement: SB-INTROSPECT:MAP-ROOT allows mapping over pointers contained in
467 * optimization: SLOT-VALUE &co are faster in the presence of SLOT-VALUE-USING-CLASS
469 * optimization: core startup time is reduced by 30% on x86-64. (lp#557357)
470 * bug fix: SB-DEBUG:BACKTRACE-AS-LIST guards against potentially leaking
471 stack-allocated values out of their dynamic-extent. (lp#310175)
472 * bug fix: attempts to use SB-SPROF for wallclock profiling on threaded
473 x86-64 builds caused a type-error.
474 * bug fix: calling COMPILE with something else than a lambda-expression as the
475 second argument reports a more sensible error. (lp#718905)
476 * bug fix: invalid combinations of :PREDICATE and :TYPE options in DEFSTRUCT
477 are detected. (lp#520607)
478 * bug fix: constant keyword argument checking didn't take :ALLOW-OTHER-KEYS
480 * bug fix: SLOT-BOUNDP information is correct during MAKE-INSTANCE in the
481 presence of (SETF SLOT-VALUE-USING-CLASS) and SLOT-BOUNDP-USING-CLASS
482 methods. (regression from 1.0.45.18)
483 * bug fix: INITIALIZE-INSTANCE :AROUND methods supplying initargs via
484 CALL-NEXT-METHOD work correctly. (regression from 1.0.45.19)
485 * bug fix: several foreign functions accepting string also accepted NIL and
486 consequently caused a memory fault at 0 now signal a type-error instead.
488 * bug fix: under rare circumstances, constraint propagation could rewrite a
489 variable reference to refer to a variable not in scope, causing an error
490 during physical environment analysis when attempting to close over the
491 variable. (lp#551227)
492 * bug fix: SIMPLE-CONDITION :FORMAT-CONTROL defaults to NIL.
494 changes in sbcl-1.0.46 relative to sbcl-1.0.45:
495 * enhancement: largefile support on Solaris.
496 * enhancement: SB-PROFILE:REPORT now supports :LIMIT and :PRINT-NO-CALL-LIST
497 arguments (lp#710017)
498 * enhancement: SB-PCL:+SLOT-UNBOUND+ is exported, making it possible to
499 distinguish unbound instance slots when using STANDARD-INSTANCE-ACCESS
501 * optimization: ERROR and CERROR are approximately 5 times faster.
502 * optimization: optimized constructors are used for MAKE-INSTANCE of classes
503 with applicable non-standard (SETF SLOT-VALUE-USING-CLASS),
504 SLOT-BOUNDP-USING-CLASS, and INITIALIZE-INSTANCE :AROUND methods, speeding
505 up instance creation in those cases.
506 * optimization: arithmetic operations with multiple constant arguments in now
507 have them reduced at compile-time. (lp#676414)
508 * optimization: determining current character position on string-streams for
509 pretty-printing was overly slow.
510 * bug fix: local tail calls to DYNAMIC-EXTENT functions can no longer cause
511 lifetime analysis to overwrite closed-over variables (lp#681092).
512 * bug fix: encoding errors from some multibyte external formats such as EUC-JP
513 were not handled correctly (lp#713063).
514 * bug fix: printing waitqueue objects without setting *PRINT-CIRCLE* to T is now
516 * bug fix: Solaris/x86-64 wasn't getting built with lutex support by
517 mistake. (lp#667297).
518 * bug fix: CONSTANTLY generated functions had bogus lambda-lists. (lp#713626)
519 * bug fix: RUN-PROGRAM :PTY option was racy on OpenBSD. (lp#669485)
520 * bug fix: UNINTERN takes a symbol, not a symbol designator -- could previously
521 unintern the wrong symbol with the same name. (lp#693796)
522 * bug fix: COPY-PPRINT-DISPATCH always has access to a pristine table,
523 making it possible to restore the initial table if it has been messed up.
526 changes in sbcl-1.0.45 relative to sbcl-1.0.44:
527 * enhancement: ~/ and ~user/ are treated specially in pathnames.
528 Refer to documentation for details.
529 * enhancement: ASDF has been updated to version 2.010.
530 * optimization: mutated closed-over variables that are only accessed by
531 DYNAMIC-EXTENT closures (currently only FLET and LABELS functions
532 declared to be DYNAMIC-EXTENT) are stored directly in their containing
533 stack frame, rather than allocating a VALUE-CELL (lp#586103).
534 * optimization: UNWIND-PROTECT cleanup functions are now declared
536 * bug fix: backtracing function with &REST arguments now shows the full
537 argument list. (lp#310173)
538 * bug fix: return types for functions with complex lambda-lists are now
539 derived properly (lp#384892)
540 * bug fix: when SPEED > SPACE compiling CONCATENATE 'STRING with constant
541 long string arguments slowed the compiler down to a crawl.
542 * bug fix: closure VALUE-CELLs are no longer stack-allocated (lp#308934).
543 * bug fix: non-standard MAKE-METHOD-LAMBDA methods could break RETURN-FROM
544 in the DEFMETHOD body.
545 * bug fix: #<SB-C::DEFINED-FUN ...> should no longer appear in compiler
546 messages, being instead replaced with the corresponding function name.
547 * bug fix: don't derive overly complex unions of numeric types for arithmetic
548 operators. (lp#309448)
550 changes in sbcl-1.0.44 relative to sbcl-1.0.43:
551 * enhancement: RUN-PROGRAM accepts :EXTERNAL-FORMAT argument to select the
552 external-format for its :INPUT, :OUTPUT, AND :ERROR :STREAMs.
553 * enhancement: ALLOCATION-INFORMATION also provides the page the object
555 * enhancement: default dynamic-space size can be configured at build-time
556 without touching source, using the --dynamic-space-size argument to make.sh.
557 * enhancement: DESCRIBE recognizes symbols naming optimization policy
558 qualities, and mentions ALWAYS-BOUND declarations.
559 * enhancement: ATOMIC-INCF now supports AREF of (SIMPLE-ARRAY SB-EXT:WORD (*))
561 * enhancement: ASDF has been updated to 2.009.
562 * enhancement: the system detects known type-erros in calls better,
563 signalling a full warning about violated proclaimed FTYPEs and violations
564 of derived FTYPEs within the same file, including self-calls.
565 * enhancement: new function: SB-EXT:DELETE-DIRECTORY is now provided.
566 * optimization: constant-folding exploits numeric and character types, in
567 addition member types.
568 * optimization: numeric, character and member types that are inhabited by
569 exactly one value are tested with EQL.
570 * optimization: more conditional branches are eliminated during IR1.
571 Branches are simplified before performing if/if-conversion, and simple
572 equivalent branches (that only read the same constant or variable) are
574 * improvements to the Windows port:
575 ** change: canonical unparsing form for pathname namestrings now uses / as
576 directory separator. NATIVE-NAMESTRING still uses \ as the separator.
577 ** bug fix: stackoverwriting due to incorrect usage of PeekConsoleInput
578 on Windows. (thanks to Kalyanov Dmitry)
579 ** bug fix: build now works on cygwin with GCC 4.x installed. (thanks to
581 ** bug fix: run-sbcl.sh now works on Cygwin. (thanks to Kalyanov Dmitry)
582 * bug fix: compiler failed to derive the result-type of MAKE-ARRAY as
583 (AND VECTOR (NOT SIMPLE-ARRAY)) when appropriate. (lp#309130)
584 * bug fix: (THE (VALUES ...)) in LOAD-TIME-VALUE caused a compiler-error.
586 * bug fix: interrupts arriving during CL:OPEN caused an error.
587 * bug fix: overeager character buffering could cause input to block
588 spuriously when reading from a pipe (lp#643686)
589 * bug fix: more efficient timer expiry should avoid starvation on systems
590 where number of SIGALRMs per second is restricted. (lp#375515)
591 * bug fix: non-unicode builds no longer fail (broken since 1.0.36.15).
592 * bug fix: compile-times no longer scale linearly with the size of
593 quoted lists in source-code. (lp#654289)
594 * bug fix: better errors for unknown external-formats in OPEN. (lp#561974)
595 * bug fix: DEBUG>SPEED no longer degrades ALIEN-FUNCALL performance quite
596 so badly. (lp#654485)
597 * bug fix: SB-INTROSPECT:FIND-DEFINITION-SOURCES-BY-NAME no longer signals
598 an error for eg. STRUCTURE. (lp#458015)
599 * bug fix: LOOP WITH NIL = ... signalled an unused variable style-warning.
600 (lp#613871, thanks to Roman Marynchak)
601 * bug fix: more reliable &REST list type derivation. (lp#655203)
602 * bug fix: PPRINT-LOGICAL-BLOCK multiply-evaluated :PER-LINE-PREFIX,
603 and issued pointles code-deletion notes for it, :PREFIX, and :SUFFIX.
604 * bug fix: the compiler didn't utilize the proclaimed ftype for functions
605 also declared NOTINLINE. (lp#655581)
606 * bug fix: the compiler could attempt to emit constant left shifts of
607 greater value than n-word-bits. (lp#309063)
608 * bug fix: (SETF SYMBOL-FUNCTION) and (SETF FDEFINITION) clear derived
609 type information for the function being set. (lp#659220)
610 * bug fix: the system used to signal bogus STYLE-WARNINGs when functions
611 containing self-calls were recompiled with a new signature, and failed
612 to warn when a self-call using the old signature was left in. (lp#655126)
613 * bug fix: incorrect FILE-POSITION on streams opened using :EXTERNAL-FORMAT
614 :DEFAULT when the default external had character size other than 8 bits.
616 * bug fix: derived types of functions in the same file were implicitly
617 trusted, leading to potential heap corruption when those function were
618 defined incompatibly. (lp#657499)
619 * bug fix: existing ASDF source registries are ignored when building
621 * bug fix: short-form DEFSETF checks that the second argument is a symbol
622 (lp#655824, thanks to Roman Marynchak)
623 * bug fix: (SETF MACRO-FUNCTION) clobbered macro-definitions before
624 package-lock violation was detected. (lp#660752)
625 * bug fix: the system can store different docstrings for a single function
626 under different names. (lp#661631, regression from 1.0.29.24)
627 * bug fix: source-locations of DEFGENERIC forms weren't getting recorded
628 properly. (lp#384801)
629 * bug fix: (COERCE X '(SIMPLE-VECTOR 5)) and similar coercions to vectors
630 of specified length could confuse the type derivation in unsafe code.
632 * bug fix: SB-POSIX:FORK now signals an error if an attempt to
633 fork with multiple Lisp threads running is made on every platform,
634 not just Darwin. (lp#451111)
635 * bug fix: SB-BSD-SOCKETS and SB-SIMPLE-STREAMS could leave stale finalizers
636 around when core was saved, which could cause undefined behaviour when the
638 * bug fix: Allow UNTRACE of functions that are no longer defined
639 (lp#667657, thanks to Attila Lendvai)
640 * bug fix: MAKE-ARRAY calls with invalid keyword argument lists now signal a
641 compile-time warning (lp#664373, thanks to Stas Boukarev)
643 changes in sbcl-1.0.43 relative to sbcl-1.0.42:
644 * incompatible change: FD-STREAMS no longer participate in the serve-event
645 event-loop by default. (lp#316072)
646 ** In addition to streams created by explicit calls to MAKE-FD-STREAM this
647 affects streams from CL:OPEN.
648 ** Streams from SOCKET-MAKE-STREAM still participate in serve-event by
649 default, but this is liable to change: applications needing serve-event
650 for socket streams should explicitly request it using :SERVE-EVENTS T
652 * enhancement: SB-EXT:WORD type is provided for use with SB-EXT:ATOMIC-INCF
654 * enhancement: CLOS effective method functions and defclass slot typechecking
655 function now have debug names for use in backtraces and profiles.
656 * enhancement: ASDF has been updated to version 2.004. (lp#605260, thanks to
658 * enhancement: symbols are printed using fully qualified names in several
659 error and warning messages which are often associated with package
660 conflicts or mixups (lp#622789, thanks to Attila Lendvai)
661 * bug fix: SB-BSD-SOCKETS:SOCKET-CONNECT was not thread safe. (lp#505497,
662 thanks to Andrew Golding)
663 * bug fix: reading /proc files on Linux works. (lp#425199)
664 * bug fix: DOTIMES accepted literal non-integer reals. (lp#619393, thanks to
666 * bug fix: WRITE-TO-STRING compiler macro binding special variable names,
667 breaking code that tried to write the value of a printer control variable.
668 (lp#581564, thanks to Stas Boukarev)
669 * bug fix: WRITE compiler macro did not handle output stream designators
670 correctly. (lp#598374, thanks to Stas Boukarev)
671 * bug fix: better availability of names of foreign functions in backtraces
672 on Linux. (lp#626962, thanks to Stas Boukarev)
673 * bug fix: scripting and build for Solaris and FreeBSD. (lp#615497,
674 lp#627581, thanks to Josh Elsasser and Jim Wise)
675 * bug fix: build fixes for OpenBSD -current and 4.8 (lp#615489, lp#615492,
676 thanks to Josh Elsasser)
677 * bug fix: using aliases for builtin classes as defmethod specializers
678 without adding DEFTYPEs for them works. (lp#618387)
679 * bug fix: timetravel by getrusage() no longer causes type-errors during GC.
681 * bug fix: legally dynamic-extent lists and vectors used as
682 initialization arguments to MAKE-ARRAY can be stack allocated. (lp#586105)
683 * bug fix: inline-expansion creating references to dead lambda-variables
684 (lp#454681, thanks to Alexey Dejneka)
685 * bug fix: better error message for bogus numerical arguments to RANDOM.
686 (lp#598986, thanks to Stas Boukarev)
687 * bug fix: the compiler occasionally inlined references from incompatible
688 environments occurs. (lp#308951)
689 * bug fix: the compiler threw an error when trying to compile a local
690 function (labels or flet) known to take a specialized complex argument.
691 (not in launchpad, reported by sykopomp in #lispgames)
692 * bug fix: package-locks failed to protect against compile-time effects of
693 DEFUN when the symbol previously had a macro definition. (lp#576637)
694 * bug fix: spurious ignore warnings even given (DECLARE IGNORE) in methods
695 when parameter bindings mutated. (reported by Faré Rideau; lp #611361)
696 * bug fix: workaround for compiler hang in ORDER-UVL-SETS (lp#308914)
697 * bug fix: evaluation in debugger REPL works using the global context when
698 in frames that do not have sufficient debug information.
699 * bug fix: exceeding FD_SETSIZE limit now results in an sensible error
701 * bug fix: (SETF DOCUMENTATION) of a macro works properly. (lp#643958, thanks
703 * bug fix: interrupt taking longer than the requested period caused SLEEP
704 to hang on Darwin. (lp#640516, thanks to Joe Lebroco for the analysis)
706 changes in sbcl-1.0.42 relative to sbcl-1.0.41
708 ** Cross-compilation host is now specified to make.sh using
709 command-line argument --xc-host=<command> instead of a positional
710 argument. (thanks to Daniel Herring)
711 ** Install location can be specified to make.sh using command-line
712 argument --prefix=<path>. (lp#550889s, thanks to Daniel Herring)
713 * optimization: The default implementation of
714 COMPUTE-DISCRIMINATING-FUNCTION does much less wasted work.
715 * enhancement: Explicit memory barrier operations are now available for use
716 by multithreaded code. See documentation for details.
717 * enhancement: Experimental support for threading on Linux/PPC.
718 * bug fix: RENAME-PACKAGE returns the package. (Thanks to Eric Marsden)
719 * bug fix: EXPT signals an error if first argument is a zero and second
720 argument is a floating point zero. (lp#571581, thanks to Roman Marynchak)
721 * bug fix: DEFTYPE signals an error for non-list lambda-lists.
722 (lp#576594, thanks to Roman Marynchak)
723 * bug fix: make ASDF-INSTALL compatible with the now-included ASDF2.
724 (lp#612998, reported by Phil Hargett; patch from Jim Wise)
726 changes in sbcl-1.0.41 relative to sbcl-1.0.40:
727 * optimization: validity of observed keyword initargs to MAKE-INSTANCE is
728 cached, leading to many fewer expensive calls to
729 COMPUTE-APPLICABLE-METHODS.
730 * optimization: in the (unoptimized) general method for MAKE-INSTANCE on a
731 CLASS argument, search for and call an appropriate optimized ctor function
733 * bug fix: WRITE always returns the correct value.
735 changes in sbcl-1.0.40 relative to sbcl-1.0.39:
736 * bug fix: readdir now works on :inode64 darwin builds (lp#592897)
737 * bug fix: Name conflicts between symbols passed as arguments to a single
738 call to IMPORT no longer add multiple symbols with the same name to the
739 package (detectable via DO-SYMBOLS).
740 * bug fix: support building without the dlshim on darwin x86 and x86-64
742 * bug fix: TRACE :ENCAPSULATE NIL now works on ppc/linux.
744 changes in sbcl-1.0.39 relative to sbcl-1.0.38:
745 * bug fix: Backtrace from undefined function on x86 and x86-64 now show
747 * bug fix: linkage-table entries on PPC now no longer overflow their
748 space allocation (potentially causing crashes if they are written out
750 * bug fix: Scrub control stack after scavenging in gencgc on non-x86oid
751 platforms, preventing the GC from seeing stale pointers on the control
752 stack in subsequent GCs (which would, and does, break invariants).
753 * bug fix: 32-bit unicode external formats now work on big-endian systems.
754 * bug fix: Literal characters with code points greater than about 32767
755 now work on PPC UNICODE builds.
756 * bug fix: Any noise left by SSE operations (sqrt and conversions) in the
757 high order bits are explicitly cleared out. In some contrived situations,
758 this could lead to wrong results in mixed real/complex float arithmetic.
759 * bug fix: Fix function/macro redefinition warnings when building with
760 clisp. (lp#576787, thanks to Josh Elsasser)
761 * new platform: experimental support for ppc/openbsd (thanks to Josh
763 * bug fix: Floating-point traps now work on ppc/linux.
765 changes in sbcl-1.0.38 relative to sbcl-1.0.37:
766 * incompatible change: Thread names are now restricted to SIMPLE-STRINGs
767 like for any other thread-related datastructure, MUTEX, etc. (lp#547095)
768 * deprecation: the SB-QUEUE contrib was merged into the SB-CONCURRENCY
769 contrib module. New code should depend on SB-CONCURRENCY, not SB-QUEUE.
770 * deprecation: SB-THEAD:GET-MUTEX was deprecated in favor of
771 SB-THREAD:GRAB-MUTEX.
772 * new contributed module: SB-CONCURRENCY is a new contrib; it's supposed to
773 contain additional data structures and tools for concurrent programming;
774 at the moment it contains a lock-free queue, and a lock-free mailbox
776 * new feature: added SB-THREAD:GRAB-MUTEX; it's like the now deprecated
777 GET-MUTEX but takes &key rather than &optional parameters. Also added
778 :TIMEOUT argument to GRAB-MUTEX on non-sb-lutex platforms like Linux and
780 * new feature: added SB-THREAD:TRY-SEMAPHORE, a non-blocking variant of
781 SB-THREAD:WAIT-ON-SEMAPHORE.
782 * new feature: SB-EXT:ATOMIC-DECF has been added as a companion to
784 * new feature: a CANCEL-DEADLINE is associated with DEADLINE-TIMEOUT
785 conditions to defer the deadline for forever.
786 * enhancement: *STANDARD-OUTPUT*, *STANDARD-INPUT*, and *ERROR-OUTPUT* are
788 * enhancement: errors from NO-APPLICABLE-METHOD and
789 NO-PRIMARY-METHOD now have a RETRY restart available to retry the
790 generic function call.
791 * enhancement: SB-BSD-SOCKET improvements
792 ** sockets and socket streams now have a more informative printed
793 representation based on the corresponding SOCKET-NAME and
795 ** SOCKET-MAKE-STREAM once more supports the :AUTO-CLOSE option.
797 ** SOCKET-CLOSE now accepts :ABORT argument, which is passed on to
798 CL:CLOSE when appropriate, and no longer disassociates the stream
799 from the socket if close failed. (lp#543951)
800 * improvements to the instrumenting profiler
801 ** new feature: report per-function GC overhead. (thanks to John Fremlin)
802 ** optimization: counters no longer use locks for the overflow mode.
803 ** bug fix: whenever a profiling counter wrapped into overflow mode, it
804 incurred an off-by-one miscount.
805 * enhancement: improved MAKE-HASH-TABLE documentation (lp#543473)
806 * enhancement: improved DEFMETHOD pretty-printing.
807 * enhancement: perform range reduction when arguments are too large for
808 x87's transcendentals (instead of returning 0). (lp#327192)
809 * enhancement: eliminate some spurious TYPE-WARNINGs. Should help with
810 some of CL-PPCRE's macros. (lp#570079)
811 * enhancement: our machine code is slightly less hostile to valgrind on
813 * enhancement: up-to-date versions of NetBSD-current are supported. (Thanks
814 to Robert Swindells and Aleksej Saushev)
815 * bug fix: correct restart text for the continuable error in MAKE-PACKAGE.
816 * bug fix: a rare case of startup-time page table corruption.
817 * bug fix: a semaphore with multiple waiters and some of them unwinding due
818 to timeouts could be left in an inconsistent state.
819 * bug fix: fix typo in "Reporting Bugs" section of the manual (lp#520366)
820 * bug fix: misoptimization of multiplication by one in
821 (SB-C::FLOAT-ACCURACY 0) policies.
822 * bug fix: miscounts in SB-PROFILE.
823 * bug fix: Fix lost wakeup bug between SB-THREAD:CONDITION-WAIT and
824 CONDITION-NOTIFY on Linux. See threads "lost wakeup in condition-wait /
825 condition-notify" (Feb 2010) and "Condition-Wait, Deadline handler, waking
826 up itself" (March 2010) for further details.
827 * bug fix: allow forward FIND and POSITION on lists to elide checking :END
828 against length of the list if the element is found before the specified
829 END is reached. (thanks to Alec Berryman, lp#554385)
830 * bug fix: errors signalled during package graph modification no longer
831 block FIND-SYMBOL and FIND-PACKAGE in other threads. (lp#511072)
832 * bug fix: SB-POSIX build was broken when SBCL was compiled without the
833 :SB-DOC feature. (lp#552564)
834 * bug fix: SB-INTROSPECT build issues on GENGC/PPC. (lp#490490)
835 * bug fix: more robust runtime executable path detection. (lp#375549)
836 * bug fix: GCD always returns positive values. (lp#413680)
837 * bug fix: Converting division to multiplication by reciprocal handles
839 * bug fix: We were too eager in eliding range reduction tests on x87.
840 The maximal magnitude is 2^63, not 2^64.
841 * bug fix: Transforms for TRUNCATE don't die when the result is completely
843 * bug fix: Maybe restore buildability on Alpha.
844 * bug fix: READ-BYTE isn't inline anymore, fixing weird streams failures.
846 * bug fix: RANDOM-STATE can be printed readably again.
847 * bug fix: Unreadable objects were sometimes printed like #<\nFoo>.
848 * bug fix: Using EQL with non-constant values of constant type (e.g. EQL
849 types) could result in type mismatches during compilation.
851 changes in sbcl-1.0.37 relative to sbcl-1.0.36:
852 * enhancement: Backtrace from THROW to uncaught tag on x86oids now shows
853 stack frame thrown from.
854 * enhancement: WITH-COMPILATION-UNIT :POLICY allows restricting changes to
855 compiler optimization qualities inside dynamic extent of its body.
856 * enhancement: LOAD-LOGICAL-PATHNAME-TRANSLATIONS can be used to load
857 translations from SYS:SITE;<HOST>.TRANSLATIONS.NEWEST (thanks to Michael
859 * optimization: SLOT-VALUE and (SETF SLOT-VALUE) take advantage of
860 constraint propgation, allowing better compilation eg. when used to
861 access structures with WITH-SLOTS. (lp#520366)
862 * optimization: the compiler is now more aware of the type of the underlying
863 storage vector for multidimensional simple arrays resulting in better code
864 for accessing such arrays.
865 * optimization: passing NIL as the environment argument to TYPEP no longer
866 inhibits optimizing it. (lp#309788)
867 * optimization: more efficient register usage when handling single-float
868 arguments on x86-64. (thanks to Lutz Euler)
869 * optimization: ADJUST-ARRAY and STABLE-SORT on vectors no longer use
870 pre-allocated temporary vectors. (lp#496249)
871 * bug fix: Fix compiler error involving MAKE-ARRAY and IF forms
872 in :INITIAL-CONTENTS. (lp#523612)
873 * bug fix: FUNCTION-LAMBDA-EXPRESSION lost declarations from interpreted
874 functions. (lp#524707)
875 * bug fix: bogus style warnings from certain (SETF SLOT-VALUE) and
876 WITH-SLOTS usages during compilation.
877 * bug fix: SB-C::CLASS-INFO now prints correctly. (lp#514762)
878 * enhancement: Can now build with ud2 instead of int3 as trap instruction on
879 all x86oid platforms with :UD2-BREAKPOINTS target feature.
880 * bug fix: Breakpoints now work when using ud2 instead of int3 as trap
881 instruction (tested on x86oid linux with ud2-breakpoints).
882 * bug fix: slam.sh now works on win32.
883 * bug fix: better differences of numeric types. (lp#309124)
884 * bug fix: arrays declared intersection and union types can have their
885 upgraded element type derived. (lp#316078)
886 * bug fix: SB-SPROF allocation profiling for all threads failed to profile
887 threads started during profiling. (lp#472499)
888 * bug fix: SB-INTROSPECT test failure when building without SB-EVAL feature.
890 * bug fix: SB-CLTL2:DECLARATION-INFORMATION did not take
891 SB-EXT:RESTRICT-COMPILER-POLICY into account. (lp#313337)
892 * bug fix: Comma inside a backquoted array or structure resulted in nonsense
893 values instead of signaling an error. (lp#309093)
894 * bug fix: Spurious unused variable warning in a DEFSTRUCT edge case.
896 * bug fix: More consistent warnings and notes for ignored DYNAMIC-EXTENT
897 declarations (lp#497321)
898 * bug fix: FIND and POSITION on lists did not check sequence bounds properly
899 and failed to detect circular lists (lp#452008)
900 * bug fix: leakage from ~/.asdf-install into the ASDf-INSTALL contrib build
902 * bug fix: LOOP OF-TYPE VECTOR compile-time error. (lp#540186)
903 * bug fix: SIGNAL SB-SYS:INTERACTIVE-INTERRUPT before entering the debugger
904 due to it, so that handlers can run.
905 * bug fix: reparsing undefined types if they have become defined since
907 * bug fix: missing &REST type in a proclamation for a function with both
908 &REST and &KEY in lambda-list caused miscompilation (lp#458354)
909 * bug fix: WHO-CALLS information for source-transformed and compiler-macro
910 expanded calls (lp#542174)
911 * bug fix: more accurate WHO-MACROEXPANDS information; point into rather
912 than just at toplevel form.
914 changes in sbcl-1.0.36 relative to sbcl-1.0.35:
915 * new feature: SB-EXT:TYPEXPAND-1, SB-EXT:TYPEXPAND, and
916 SB-EXT:TYPEXPAND-ALL behave exactly like their MACROEXPAND counterparts
917 but work on type specifiers.
918 * new feature: SB-EXT:DEFINED-TYPE-NAME-P returns whether a symbol is known
919 to name a type specifier.
920 * new feature: SB-EXT:VALID-TYPE-SPECIFIER-P returns whether a given type
921 specifier is valid where "valid" basically means "would be accepted as
922 second argument of TYPEP".
923 * new feature: SB-INTROSPECT:FUNCTION-TYPE takes a function-designator and
924 returns the function's declared, or derived FTYPE.
925 * new feature: SB-POSIX now supports accessing the d_ino member of
926 dirent structures. (Thanks to Philipp Marek and Pierre THEIRRY)
927 * new feature: The function SB-EXT:SEED-RANDOM-STATE has been added to
928 provide for seeding a RANDOM-STATE object with user-provided data or
929 from the operating system's PRNG. Also, (MAKE-RANDOM-STATE T) will
930 attempt to initialize the returned state from the operating system's
931 PRNG where possible. (Thanks to Fare Rideau; launchpad bug lp#310116)
932 * bug fix: Fix SB-SIMPLE-STREAMS:READ-VECTOR to correctly set the
933 FILE-POSITION of the stream being read from. (launchpad bug lp#491087)
934 * bug fix: Fix grammar and style issues for the docstrings of
935 printer-related variables and functions. (Thanks to mon_key; launchpad
937 * bug fix: Fix compilation on chenygc platforms. Thanks to Larry Valkama and
939 * bug fix: SB-THREAD:CONDITION-WAIT sometimes signaled a deadline twice
940 in a row even though a handler defered the deadline long into the
942 * bug fix: A deadline handler was run without interrupts enabled for a
943 deadline signaled within SB-THREAD:CONDITION-WAIT. That could result
944 in infinitely spinning, non-killable threads.
945 * bug fix: Backtrace from internal-errors on x86-64 os x was truncated
946 before reaching the erring stack frame.
947 * bug fix: Fix type derivation for EXPT when raising a fixnum to a
948 real power. (launchpad bug lp#525949)
949 * bug fix: Fix SB-EXT:GENERATION-* accessors for generations > 0 on
950 GENCGC platforms. (launchpad bug lp#529014)
951 * bug fix: More robust checks for invalid DEFMETHOD argument specializers.
952 (launchpad bug lp#525916)
953 * bug fix: Fix building on Darwin when sysctl is not in the user's PATH.
954 (Thanks to Robert Goldman)
956 changes in sbcl-1.0.35 relative to sbcl-1.0.34:
957 * optimization: ROUND with a single single-float or double-float argument
958 is properly inlined when possible.
959 * optimization: Slightly better code is generated for integer<->float
960 conversions and for single-float<->double-float conversions on x86-64.
961 * optimization: SB-ROTATE-BYTE:ROTATE-BYTE now generates more efficient
962 code for 32-bit and 64-bit rotations on x86-64.
963 * bug fix: The install script changes the ownership of directories as well
964 as files for contrib modules using asdf. (thanks to Eugene Ossintsev;
965 launchpad bug lp#508485)
966 * bug fix: TRUNCATE with a single single-float or double-float argument is
967 properly inlined when possible. (launchpad bug lp#489388)
968 * bug fix: Passing a rotation count of zero to SB-ROTATE-BYTE:ROTATE-BYTE
969 no longer causes a compiler error on x86 and ppc.
970 * bug fix: GET-MACRO-CHARACTER bogusly computed its second return value
971 always relative to *READTABLE* rather than the passed argument.
973 changes in sbcl-1.0.34 relative to sbcl-1.0.33:
974 * minor incompatible change: threading support is now enabled by default
976 * enhancement: SB-INTROSPECT:DEFTYPE-LAMBDA-LIST now also works on most
978 * enhancement: Errors during compile-time-too processing (i.e. EVAL-WHEN)
979 are now caught and reported just like errors during macroexpansion.
980 * enhancement: SB-POSIX now provides access to tcdrain(), tcflow(),
981 tcflush(), tcgetsid(), and tcsendbreak(). (thanks to Jerry James)
982 * enhancement: ASDF systems can now depends on SB-QUEUE.
983 * fixes and improvements related to Unicode and external formats:
984 ** bug fix: error handling and restart usage in the ucs-2 external format
986 ** there is now an implementation of the ucs-4 external format.
987 ** the utf-16 and utf-32 external formats are supported.
988 * bug fix: SB-POSIX wrapper for putenv no longer tries to put lisp strings
989 in the environment. setenv() and unsetenv() are also provided. (reported by
990 Fare Rideau; launchpad bug lp#460455)
991 * bug fix: LOAD of both .fasl and .FASL type files now forces fasl-style
992 loading. This ensures sensible errors for .FASL files from other
993 implementations on case-insensitive filesystems. (reported by Willem
994 Broekema; launchpad bug lp#489417)
995 * bug fix: #p"\\\\" can now be read without error on Win32. (reported by
996 Willem Broekema; launchpad bug lp#489698).
997 * bug fix: some minor code rearrangements to reenable warning-free building
998 from CMUCL (reported by xme@gmx.net; launchpad bug lp#491104)
999 * bug fix: PRINT-OBJECT for clos instances respects the right margin when
1001 * bug fix: FIND-PACKAGE & DEFPACKAGE were not thread safe. (reported by
1004 changes in sbcl-1.0.33 relative to sbcl-1.0.32:
1005 * new port: support added for x86-64 NetBSD. (thanks to Aymeric Vincent)
1006 * improvement: support O_LARGEFILE access to files larger than 2GB on
1007 x86-64/linux. (thanks to Daniel Janus; launchpad bug lp#453080)
1008 * new feature: SB-INTROSPECT:WHO-SPECIALIZES-DIRECTLY to get a list of
1009 definitions for methods specializing on the passed class itself.
1010 * new feature: SB-INTROSPECT:WHO-SPECIALIZES-GENERALLY to get a list of
1011 definitions for methods specializing on the passed class itself, or on
1013 * new build flag: :sb-xref-for-internals; SBCL will collect xref information
1014 about itself during the build (e.g. for M-? in Slime), if this flag is
1015 enabled in customize-target-features.lisp. This will increase the core
1016 size by about 5-6mb, though, so it's mostly interesting to SBCL
1018 * new feature: various GENCGC tuning parameters have been experimentally
1019 documented and exported from SB-EXT. See documentation for details.
1020 * fixes and improvements related to Unicode and external formats:
1021 ** the Unicode character database has been upgraded to the
1022 Unicode 5.2 standard, giving names and properties to a number of new
1023 characters, and providing a few extra characters with case
1025 ** improvement: restarts for providing replacement input/output on coding
1026 errors for fd-stream external formats.
1027 ** improvement: where :<encoding> is a keyword corresponding to an
1028 external format the system supports, it is now possible to specify
1029 (:<encoding> :replacement <character>) as an external format which will
1030 automatically substitute <character> on encoding or decoding errors for
1031 streams and for STRING-TO-OCTETS and its inverse. (launchpad bug
1033 ** improvement: the file streams underlying the standard streams (such as
1034 *STANDARD-INPUT*, *TERMINAL-IO*) are opened with an external format
1035 which uses the replacement mechanism to handle encoding errors,
1036 preventing various infinite error chains and unrecoverable I/O
1038 ** minor incompatible change: the utf-8 external format now correctly
1039 refuses to encode Lisp characters in the surrogate range (char-codes
1040 between #xd800 and #xdfff).
1041 ** fix a typo preventing conversion of strings into octet vectors
1042 in the latin-2 encoding. (reported by Attila Lendvai; launchpad bug
1044 ** fix a bug in the octet multibyte handling of decoding errors and the
1045 USE-VALUE restart. (launchpad bug lp#314939)
1046 ** fix the bug underlying the expected failure in the FORCE-END-OF-FILE
1047 restart on fd-stream decoding errors.
1048 ** fix a bug in the ATTEMPT-RESYNC fd-stream decoding restart when the
1049 error is near the end of file.
1050 ** fix a double-error case in unibyte octet conversions, when the first
1051 use of USE-VALUE is ignored.
1052 ** fix bugs in handling of undefined code points in unibyte encodings.
1053 ** fix LISTEN (and consequent hangs in READ-CHAR-NO-HANG) on bivalent
1054 streams after an UNREAD-CHAR.
1055 * enhancement: SB-INTROSPECT:ALLOCATION-INFORMATION also reports if the
1056 object is allocated in a boxed region of dynamic space.
1057 * enhancement: SB-POSIX:FORK now signals an error if an attempt to
1058 fork with multiple Lisp threads running is made, instead of going
1059 ahead with unpredictable consequences. (reported by Leslie Polzer)
1060 * bug fix: uses of slot accessors on specialized method parameters within
1061 the bodies of SLOT-VALUE-USING-CLASS methods no longer triggers a type
1062 error while finalizing the class. This fix may cause classes with slot
1063 accessors to be finalized later than previously. (reported by Lars Rune
1064 Nøstdal; launchpad bug lp#473699)
1065 * bug fix: restore buildability on the MIPS platform. (regression from
1066 1.0.30.38, reported by Samium Gromoff)
1067 * bug fix: inspecting closures is less likely to fail with a type error.
1068 * bug fix: no timer starvation when setting the system clock back.
1069 (launchpad bug lp#460283)
1070 * bug fix: WITH-STANDARD-IO-SYNTAX now binds *PRINT-PPRINT-DISPATCH* to the
1071 standard pprint dispatch table as specified by CLHS.
1072 * bug fix: give CLISP a hint about a type declaration to enable it to build
1073 the cross-compiler without warnings. (thanks to Josh Elasser; launchpad
1075 * bug fix: correctly dump literal objects in defaulting forms of arglists.
1076 (reported by Attila Lendvai; launchpad bug lp#310132)
1077 * bug fix: distinguish in type specifiers between arrays that might be
1078 complex and arrays that are definitely complex. (launchpad bug lp#309129)
1079 * bug fix: SUBTYPEP knows that the SYMBOL type is not SUBTYPEP the KEYWORD
1080 type. (reported by Levente Mészáros; launchpad bug lp#485972)
1081 * bug fix: setting the value of a symbol-macro within a method in the
1082 presence of type declarations works properly again. (reported by Iban
1083 Hatchondo; launchpad bug lp#485019)
1085 changes in sbcl-1.0.32 relative to sbcl-1.0.31:
1086 * optimization: faster FIND and POSITION on strings of unknown element type
1087 in high SPEED policies. (thanks to Karol Swietlicki)
1088 * optimization: faster CONCATENATE 'STRING in low SPEED policies (reported
1090 * improvement: better error signalling for bogus parameter specializer names
1091 in DEFMETHOD forms (reported by Pluijzer)
1092 * bug fix: DELETE-FILE once again works on logical pathnames (regression
1094 * bug fix: LOGICAL-PATHNAME signals a TYPE-ERROR if pathspec is specified
1096 * bug fix: redefinition of a class via DEFCLASS without :DEFAULT-INITARGS
1097 removes previous default initargs (reported by Lars Rune Nøstdal and
1099 * bug fix: correct WHO-CALLS information for inlined lambdas with complex
1100 lambda-lists. (reported by Peter Seibel)
1101 * bug fix: SAVE-LISP-AND-DIE option :SAVE-RUNTIME-OPTIONS did not work
1102 correctly when starting from an executable core without saved runtime
1103 options (reported by Faré Rideau, thanks to Zach Beane)
1104 * bug fix: (SETF SLOT-VALUE) signalled a warning which should have been
1105 an optimization note instead. (reported by Martin Cracauer)
1106 * bug fix: WITH-SLOTS did not work with THE forms. (thanks to David Tolpin)
1107 * bug fix: Have RUN-PROGRAM with :INPUT T only run the subprocess in a
1108 new process group if it doesn't need to share stdin with the sbcl
1109 process. (thanks to Leslie Polzer)
1110 * bug fix: SATISFIES could be misoptimized to refer to a local function.
1111 (reported by Stanislaw Halik)
1113 changes in sbcl-1.0.31 relative to sbcl-1.0.30:
1114 * improvement: stack allocation is should now be possible in all nested
1115 inlining cases: failure to stack allocate when equivalent code is manually
1116 open coded is now considered a bug.
1117 * improvements related to Unicode:
1118 ** the Unicode character database has been upgraded to the
1119 Unicode 5.1 standard, giving names and properties to a number of new
1120 characters, and providing a few extra characters with case
1122 ** the system now recognizes and produces names for Unicode Hangul
1123 syllable characters.
1124 ** the EBCDIC-US external-format is now supported for octet operations
1125 (as well as for stream operations).
1126 * new feature: experimental :EMIT-CFASL parameter to COMPILE-FILE can
1127 be used to output toplevel compile-time effects into a separate .CFASL
1129 * optimization: COERCE to VECTOR, STRING, SIMPLE-STRING and recognizable
1130 one-dimenstional subtypes of ARRAY is upto 70% faster when the coercion is
1132 * optimization: TRUNCATE on known single- and double-floats is upto 25%
1134 * optimization: division of floating point numbers by constants uses
1135 multiplication by reciprocal when an exact reciprocal exists.
1136 * optimization: multiplication of single- and double-floats floats by
1137 constant two has been optimized.
1138 * optimization: ARRAY-IN-BOUNDS-P is resolved at compile-time when
1139 sufficient type information is available. (thanks to Leslie Polzer)
1140 * optimization: SLOT-VALUE and (SETF SLOT-VALUE) with constant slot names on
1141 known structure objects are as efficient as defstruct generated accessors.
1142 * optimization: unused vector creation can now be optimized away.
1143 * improvement: ASDF systems can now depends on SB-INTROSPECT.
1144 * improvement: a STYLE-WARNING is signalled when a generic function
1145 clobbers an earlier FTYPE proclamation.
1146 * improvement: the compiler is able to track the effective type of
1147 generic function across method addition and removal even in the
1148 absence of an explicit DEFGENERIC.
1149 * improvement: DESCRIBE now reports on symbols naming undefined
1150 but assumed or declared function as well.
1151 * improvement: recompilation of systems using SB-GROVEL now works
1152 (thanks to Leslie Polzer)
1153 * improvements to SB-CLTL2 (thanks to Larry D'Anna):
1154 ** functions DECLARATION-INFORMATION, PARSE-MACRO, and ENCLOSE have been
1156 ** AUGMENT-ENVIRONMENT and DEFINE-DECLARATION have been implemented.
1157 ** DECLARATION-INFORMATION now supports declaration name DECLARATION as
1158 well as user defined declaration names.
1159 ** VARIABLE-INFORMATION is now aware of alien variables.
1160 * improvement: improved address space layout on OpenBSD (thanks to Josh
1162 * improvement: pretty-printing of various Lisp forms has been improved
1163 (thanks to Tobias Rittweiler)
1164 * bug fix: calls to DECODE-FLOAT and INTEGER-DECODE-FLOAT whose value was
1165 unused were deleted in safe code. (reported by John Fremlin)
1166 * bug fix: a failing AVER compiling certain MAKE-ARRAY forms. (reported
1168 * bug fix: some out-of-line array predicates were missing (reported by
1170 * bug fix: a failing AVER in CONVERT-MV-CALL has been fixed. (thanks to
1172 * bug fix: a failing AVER in %ALLOCATE-CLOSURES conversion has been fixed
1173 (thanks to Larry D'Anna)
1174 * bug fix: SLEEP supports times over 100 million seconds on long on OpenBSD
1175 as well. (reported by Josh Elsasser)
1176 * bug fix: DELETE-FILE on streams no longer closes the stream with :ABORT T,
1177 leading to possible attempts to delete the same file twice. See docstring
1178 on DELETE-FILE for details. (reported by John Fremlin)
1179 * bug fix: DELETE-FILE once again deletes the file named by the pathname
1180 designator argument, rather than its truename. (reported by Luis
1182 * bug fix: the low-level debugger had 32-bit assumptions and was missing
1183 information about some array types. (thanks to Luis Oliveira)
1184 * bug fix: moderately complex combinations of inline expansions could
1185 be miscompiled if the result was declared to be dynamic extent.
1186 * bug fix: on x86, SAP-REF of sizes greater than 8 bits with offsets of the
1187 form (+ <variable> <integer>) were miscompiled under certain
1189 * bug fix: in some cases no compiler note about failure to stack allocate
1190 was emitted, even if the objects were in fact heap allocated.
1191 * bug fix: minor violation of "otherwise inaccessible" rule for stack
1192 allocation could cause objects users might reasonably expect to
1193 be heap allocated to be stack allocated.
1194 * bug fix: DESCRIBE signalled an error for generic functions under
1195 certain circumstances. (thanks to Leslie Polzer)
1196 * bug fix: Fixed spelling of an error message.
1198 changes in sbcl-1.0.30 relative to sbcl-1.0.29:
1199 * minor incompatible change: SB-THREAD:JOIN-THREAD-ERROR-THREAD and
1200 SB-THREAD:INTERRUPT-THREAD-ERROR-THREAD have been deprecated in favor
1201 of SB-THREAD:THREAD-ERROR-THREAD.
1202 * new contrib module: SB-QUEUE provides thread-safe lockless FIFO queues.
1203 * new feature: docstrings for local and anonymous functions are no longer
1204 discarded. (thanks to Leslie Polzer)
1205 * new feature: SB-THREAD:SYMBOL-VALUE-IN-THREAD provides access to symbol
1206 values in other threads.
1207 * new feature: SB-INTROSPECT:ALLOCATION-INFORMATION provides information
1208 about object allocation.
1209 * optimization: division of a real float by a complex float is implemented
1210 with a specialised code sequence.
1211 * optimization: MAKE-INSTANCE with non-constant class-argument but constant
1212 keywords is an order of magnitude faster.
1213 * optimization: MAKE-INSTANCE with constant keyword arguments is x2-4 faster
1214 in the presence of :AROUND or non-standard primary INITIALIZE-INSTANCE
1215 methods, and similarly for non-standard metaclass classes as long as there
1216 are no methods additional on MAKE-INSTANCE.
1217 * optimization: more efficient type-checks for FIXNUMs when the value
1218 is known to be a signed word on x86 and x86-64.
1219 * optimization: compiler now optimizes (EXPT -1 INTEGER), (EXPT -1.0 INTEGER),
1220 and (EXPT -1.0d0 INTEGER) into an ODDP test. (thanks to Stas Boukarev and
1222 * optimization: compiler is smarter about delegating argument type checks to
1224 * optimization: several character functions are now compiled somewhat more
1225 efficiently. (reported by Lynn Quam)
1226 * optimization: the compiler now derives simple types for LOAD-VALUE-FORMs.
1227 * improvement: less unsafe constant folding in floating point arithmetic,
1228 especially for mixed complex/real -float operations.
1229 * optimization: constant double and single floats are stored in native
1230 unboxed format on x86[-64].
1231 * optimization: smarter code for arithmetic operations with constant floats,
1232 complex floats, or integers on x86[-64].
1233 * optimization: smarter code for conjugate/multiplication of float complexes
1234 and abs/negate of floats on x86-64.
1235 * optimization: more efficient complex float and real float operations on
1237 * improvement: complex float division is slightly more stable.
1238 * improvement: DESCRIBE output has been reworked to be easier to read and
1239 contains more pertinent information.
1240 * improvement: failure to provide requested stack allocation compiler notes
1241 provided in all cases (requested stack allocation not happening without a
1242 note being issued is now considered a bug.)
1243 * bug fix: SB-POSIX exports the documented types and functions
1244 FILE-DESCRIPTOR and FILENAME, and also the corresponding -DESCRIPTOR
1245 types. (reported by "abhi")
1246 * bug fix: on 64 bit platforms FILL worked incorrectly on arrays with
1247 upgraded element type (COMPLEX SINGLE-FLOAT), regression from 1.0.28.55.
1248 (thanks to Paul Khuong)
1249 * bug fix: looping around HANDLER-CASE could silently consume stack space
1250 on each iteration. (reported by "foobar")
1251 * bug fix: better error signalling when calls to functions seeking elements
1252 from lists (eg. ADJOIN) are compiled with both :TEST and :TEST-NOT.
1253 (reported by Tobias Rittweiler)
1254 * bug fix: regressions in DIRECTORY from 1.0.28.61: pattern matching of
1255 directory components now works as it used to. (various prolems reported by
1256 Michael Becker, Gabriel Dos Reis, Cyrus Harmon, and Harald Hanche-Olsen)
1257 * bug fix: :PTY option in RUN-PROGRAM was broken with stream arguments.
1258 (reported by Elliot Slaughter, thanks to Stas Boukarev)
1259 * bug fix: bogus undefined variable warnings from fopcompiled references to
1260 global variables. (thanks to Lars Rune Nøstdal)
1261 * bug fix: foreign function names should now appear in backtraces on
1262 FC6 as well. (reported by Tomasz Skutnik and Tobias Rautenkranz)
1263 * bug fix: SETF compiler macro documentation strings are not discarded
1265 * bug fix: GENTEMP is now unaffected by pretty printer dispatch table.
1266 (thanks to Alex Plotnick)
1267 * bug fix: SLEEP accepts large integer arguments, truncating them to
1268 SIGNED-WORD on the assumption that sleeping for 68 years is sufficient
1269 for anyone. (reported by Leslie Polzer, thanks to Stas Boukarev)
1270 * bug fix: compiler notes for expensive slot type checks could be emitted
1271 at runtime MAKE-INSTANCE calls. (reported by Samium Gromoff)
1273 changes in sbcl-1.0.29 relative to 1.0.28:
1274 * IMPORTANT: bug database has moved from the BUGS file to Launchpad
1275 https://bugs.launchpad.net/sbcl
1276 Bugs can be reported directly there, or by sending email to
1277 sbcl-bugs@lists.sourceforge.net
1278 (no subscription required.)
1279 * minor incompatible change: under weak type checking policy integer
1280 types are weakened less aggressively.
1281 * minor incompatible change: SAVE-LISP-AND-DIE :TOPLEVEL function is now
1282 allowed to return, which causes SBCL to quit with exit status 0. Previously
1283 if the function returned with a small integer return value, that value
1284 was accidentally reused as the exit status.
1285 * new feature: SB-EXT:DEFINE-HASH-TABLE-TEST allows defining new arguments
1286 to MAKE-HASH-TABLE :TEST, and MAKE-HASH-TABLE has been extended with
1287 :HASH-FUNCTION argument. Refer to user manual for details.
1288 * new feature: SB-EXT:DEFGLOBAL macro allows defining global non-special
1290 * new feature: SB-EXT:GET-TIME-OF-DAY provides access to seconds and
1291 microseconds since the Unix epoch on all platforms.
1292 * new feature: SB-EXT:ALWAYS-BOUND proclamation inhibits MAKUNBOUND, and
1293 allows the compiler to safely elide boundedness checks for special
1295 * new feature: SB-EXT:GLOBAL proclamation inhibits SPECIAL proclamations for
1296 the symbol, prohibits both lexical and dynamic binding. This is mainly an
1297 efficiency measure for threaded platforms, but also valueable in
1299 * new feature: UNC pathnames are now understood by the system on Windows.
1300 * optimization: the compiler uses a specialized version of FILL when the
1301 element type is know in more cases, making eg. (UNSIGNED-BYTE 8) case
1303 * optimization: accesses to potentially non-simple arrays where element type
1304 is known are 50% faster.
1305 * optimization: compiler now generates faster array typechecking code.
1306 * optimization: ARRAY-DIMENSION is now faster for multidimensional and
1308 * optimization: multidimensional array accesses in the absence of type
1309 information regarding array rank are approximately 10% faster due to
1310 open coding of ARRAY-RANK.
1311 * optimization: result of (FILL (MAKE-ARRAY ...) ...) and (REPLACE
1312 (MAKE-ARRAY ...) ...) can be stack allocated if the result of MAKE-ARRAY
1314 * optimization: result of call to VECTOR can now be stack allocated.
1315 * optimization: MAKE-ARRAY with :INITIAL-CONTENTS is now vastly faster
1316 as long as the resulting array is one-dimensional and has a known
1317 element type. In particular, :INITIAL-CONTENTS (LIST ...) where the
1318 length of the list matches the known length of the vector does not
1319 allocate the list as an intermediate step. Ditto for VECTOR and simple
1321 * optimization: MAKE-ARRAY can now stack allocate in the presence of
1322 :INITIAL-CONTENTS and :INITIAL-ELEMENT as long as the result has a
1323 known element type, and is known to be simple and one dimensional.
1324 * improvement: SBCL now emits a compiler note where stack allocation was
1325 requested but could not be provided (not in all cases, unfortunately)
1326 * improvement: better MACHINE-VERSION responses. (thanks to Josh Elsasser)
1327 * improvement: pretty-printing loop has been implemented properly. (thanks
1328 to Tobias Rittweiler)
1329 * documentation: CLOS slot typechecing policy has been documented.
1330 * bug fix: FILE-AUTHOR no longer signals an error on Windows.
1331 * bug fix: SB-SPROF could be foiled by foreign code not have a frame
1332 pointer, leading to memory faults. (thanks to Bart Botta)
1333 * bug fix: better floating point exception handling on x86/OpenBSD.
1334 (thanks to Josh Elsasser)
1335 * bug fix: exit status from QUIT when called under --script was lost
1336 (reported by Hubert Kauker)
1337 * bug fix: MAKE-ARRAY for non-zero :INITIAL-ELEMENT always used the
1338 same implementation of FILL to initialize the array, even if a more
1339 efficient one was available (reported by Stas Boukarev, thanks to
1341 * bug fix: potential miscompilation of array stack allocation on x86 and
1342 x86-64. (reported by Time Tossavainen)
1343 * bug fix: some forms of AND, OR, and COND resulted in expansions that could
1344 result in their subforms being treated as top level forms. (reported by
1346 * bug fix: On x86/x86-64 alien functions declared to return integers shorter
1347 than a machine register could leave garbage in the high bits of the
1348 result register (bug 316325).
1349 * bug fix: disable address space randomization Linux/x86-64 as well,
1350 not just x86-64. (reported by Ken Olum)
1351 * bug fix: Attempting to DEREF an (ALIEN (* T)) would produce a WARNING and
1352 generate incorrect code.
1353 * bug fix: #201; type inference for CONS and ARRAY types could derive
1354 wrong results in the presence of eg. RPLACA or ADJUST-ARRAY.
1355 * bug fix: special variables with a proclaimed specific subtype of FUNCTION
1356 could not be assigned to or bound with PROGV. (reported by Lorenz
1358 * bug fix: the value of CL:- in the inspector was the previous expression
1359 evaluated rather than the expression being evaluated.
1360 * bug fix: constants can no longer be locally declared special.
1361 * bug fix: signals delivered to threads started from foreign land (read:
1362 directly by pthread_create, not by MAKE-THREAD) are redirected to a Lisp
1363 thread by blocking all signals and resignalling.
1364 * bug fix: SHARED-INITIALIZE initialized unbound :ALLOCATION :CLASS slots
1365 from :INITFORM, if any.
1367 changes in sbcl-1.0.28 relative to 1.0.27:
1368 * a number of bugs in cross-compilation have been fixed, with the ultimate
1369 result that building under (at least) clisp should be much more reliable.
1370 * minor incompatible changes: echo-streams now propagate unread-char to the
1371 underlying input stream, and no longer permit unreading more than one
1373 * improvement: on x86/x86-64 Lisp call frames now have the same layout as C
1374 frames, allowing for instance more reliable backtraces.
1375 * improvement: the debugger REPL can now reference lexical variables
1376 by name directly for code compiled with (DEBUG 3).
1377 * improvement: errors from malformed declarations now have better source
1378 paths associated with them. (thanks to Tobias Rittweiler)
1379 * optimization: faster local calls on x86/x86-64
1380 * bug fix: some error messages for out-of-bound array indexes confused the
1381 index and the bound. (thanks to Stas Boukarev)
1382 * bug fix: pretty printing malformed DEFPACKAGE forms (thanks to Sidney
1384 * bug fix: running regressions tests in shells without OSTYPE set now works.
1385 (reported by Harald Hanche-Olsen)
1386 * bug fix: more robust static space exhaustion signalling from
1387 MAKE-STATIC-VECTOR (thanks to Daniel Lowe)
1388 * bug fix: (SETF DOCUMENTATION) for anonymous function now throws the
1389 docstring away instead of storing it under names such as (LAMBDA (X)).
1390 (reported by Leslie Polzer)
1391 * bug fix: timers could go off in the wrong order, be delayed indefinitely
1392 (thanks to Ole Arndt for the patch)
1393 * bug fix: RESTART-FRAME and RETURN-FROM-FRAME stack corruption
1394 * bug fix: the discriminating function for PRINT-OBJECT no longer preserves
1395 potentially-invalid effective methods in its cache.
1396 * bug fix: SB-INTROSPECT:FIND-DEFINITION-SOURCE now works with funcallable
1397 instances as well (thanks to Paul Khuong)
1398 * bug fix: using RUN-PROGRAM does not interfere with SB-POSIX:WAIT,
1399 SB-POSIX:WAITPID and their C equivalents.
1400 * bug fix: RUN-PROGRAM does not crash on Darwin when stressed.
1402 changes in sbcl-1.0.27 relative to 1.0.26:
1403 * new port: support added for x86-64 OpenBSD. (thanks to Josh Elsasser)
1404 * new port: support added for x86-64 Solaris. (thanks to Alex Viskovatoff)
1405 * improvement: the system either recovers from stack exhaustion or dies
1406 properly as opposed to leaving the user uncertain of whether the handler
1407 trampled on some random memory next to the stack or having to rely on
1408 --lose-on-corruption (which is still a good idea to use in production
1409 because stack exhaustion can happen in signal handlers which will likely
1411 * bug fix: fix gc related interrupt handling bug on ppc (regression from
1412 1.0.25.37, reported by Harald Hanche-Olsen)
1413 * bug fix: work around signal delivery bug in darwin (regression from
1414 1.0.25.44, reported by Sidney Markowitz)
1415 * bug fix: fix ERROR leaking memory (reported by David Thompson)
1417 changes in sbcl-1.0.26 relative to 1.0.25:
1418 * incompatible change: an interruption (be it a function passed to
1419 INTERRUPT-THREAD or a timer function) runs in an environment where
1420 interrupts can be enabled. The interruption can use
1421 WITH-INTERRUPTS or WITHOUT-INTERRUPTS as it sees fit. Use
1422 WITHOUT-INTERRUPTS to avoid nesting of interruptions and
1423 potentially running out of stack. Keep in mind that in the absence
1424 of WITHOUT-INTERRUPTS some potentially blocking operation such as
1425 acquiring a lock can enable interrupts.
1426 * incompatible change: GC-OFF and GC-ON are removed, as they were
1427 always unsafe. Use WITHOUT-GCING instead.
1428 * new feature: runtime option --disable-ldb
1429 * new feature: runtime option --lose-on-corruption to die at the
1430 slightest hint of possibly non-recoverable errors: running out of
1431 memory, stack, alien stack, binding stack, encountering a memory
1432 fault, etc. In the absence of --lose-on-corruption a warning is
1434 * enhancement: detect binding stack exhaustion
1435 * enhancement: detect alien stack exhaustion on x86/x86-64
1436 * improvement: generally more stable and reliable interrupt handling
1437 * improvement: there is a per thread interruption queue,
1438 interruptions are executed in order of arrival
1439 * improvement: a repeating timer reschedules itself when the it has
1440 finished, but expiration times are spaced equally. If an
1441 expiration time is in the past it will trigger after a short grace
1442 period that may give a chance to other things to run.
1443 * optimization: slightly faster gc on multithreaded builds
1444 * optimization: faster WITHOUT-GCING
1445 * bug fix: when JOIN-THREAD signals an error, do it when not holding
1446 important locks so that the debugger/handler doesn't produce
1447 recursive errors or deadlock.
1448 * bug fix: real-time signals are not used anymore, so no more
1449 hanging when the system wide real-time signal queue gets full.
1450 * bug fix: INTERRUPT-THREAD on a dying thread could produce memory
1452 * bug fix: finalizers, gc hooks never run in a WITHOUT-INTERRUPTS
1453 * bug fix: fix random memory faults related to interrupts on alpha
1454 * bug fix: fix random memory faults related to interrupts on sparc
1455 * bug fix: fix deadlocks related to starting threads
1456 * bug fix: fix deadlines on locks on futex platforms
1457 * bug fix: restore errno in signal handlers
1458 * bug fix: fix deadlocks related to hash tables
1459 * bug fix: fix deadlocks in pcl
1461 changes in sbcl-1.0.25 relative to 1.0.24:
1462 * incompatible change: SB-INTROSPECT:FUNCTION-ARGLIST is deprecated, to be
1463 removed later. Please use SB-INTROSPECT:FUNCTION-LAMBDA-LIST instead.
1464 * new feature: SB-INTROSPECT:DEFTYPE-LAMBDA-LIST allows retrieval of
1465 DEFTYPE lambda lists. (thanks to Tobias Rittweiler)
1466 * enhancement: MUTEX-VALUE is to be superseded by MUTEX-OWNER that has a
1467 better name and does not return values so stale on multiprocessor systems.
1468 Also, HOLDING-MUTEX-P was added for about the only sane usage of
1470 * improvement: unithread builds keep track of MUTEX-VALUE.
1471 * improvement: reading from a TWO-WAY-STREAM does not touch the output
1472 stream anymore making it thread safe to have a concurrent reader and
1473 a writer, for instance, in a pipe.
1474 * improvement: GET-SETF-EXPANDER avoids adding bindings for constant
1475 arguments, making compiler-macros for SETF-functions able to inspect
1476 their constant arguments.
1477 * improvement: COMPILE-FILE reports times with millisecond accuracy
1478 (thanks to Luis Oliveira)
1479 * optimization: CHAR-CODE type derivation has been improved, making
1480 TYPEP elimination on subtypes of CHARACTER work better. (reported
1481 by Tobias Rittweiler, patch by Paul Khuong)
1482 * bug fix: setting alien structure fields of type struct by value now
1483 computes the right offset for the memory copy.
1484 * bug fix: compilation problem involving inlined calls to aliens with
1485 result type VOID. (reported by Ken Olum)
1486 * bug fix: #235a; sequential inline expasion in different policies no
1487 longer reuses the functional from the previous expansion site.
1488 * bug fix: DEFTYPE no longer breaks on bodies consisting of a single
1489 unquoted symbol. Regression from 1.0.22.8. (reported by Ariel Badichi)
1490 * bug fix: named ENUMs in multiply-referenced alien record types no longer
1491 cause an implied type redefinition. Regression from 1.0.21.29.
1492 * bug fix: sign-extension of small signed return values now works with C
1493 code compiled with gcc 4.3 or newer. (reported by Liam Healy)
1494 * improvements to the Windows port:
1495 ** SB-BSD-SOCKETS now works from saved cores as well. (reported by Stephen
1496 Westfold, thanks to Rudi Schlatte)
1498 changes in sbcl-1.0.24 relative to 1.0.23:
1499 * new feature: ARRAY-STORAGE-VECTOR provides access to the underlying data
1500 vector of a multidimensional SIMPLE-ARRAY.
1501 * new feature: the system now signals a continuable error if standard
1502 readtable modification is attempted. (thanks to Tobias Rittweiler)
1503 * new feature: DIRECTORY has been extended with a non-standard keyword
1504 argument :RESOLVE-SYMLINKS. (thanks to TC-Rucho)
1505 * enhancement: SB-BSD-SOCKETS:MAKE-SOCKET-STREAM keyword argument handling
1506 has been robustified and documented better. (thanks to Robert Goldman)
1507 * optimization: faster generic arithmetic dispatch on x86 and x86-64.
1508 * optimization: FORMAT ~D and ~F are now approximately 5% faster.
1509 * tradeoff: constant FORMAT control strings are now compiled unless
1510 SPACE > SPEED (previously only when SPEED > SPACE.)
1511 * bug fix: Red Hat Enterprise 3 mmap randomization workaround. (thanks
1513 * bug fix: DEFCLASS and ENSURE-CLASS-USING-CLASS are now expected to
1515 * bug fix: lexical type declarations are now correctly reported by
1516 SB-CLTL2. (reported by Larry D'Anna)
1517 * bug fix: STRING-TO-OCTETS did not handle :START properly when
1518 using UTF-8 as external format. (thanks to Luis Oliveira)
1519 * bug fix: errors from invalid fill-pointer values to (SETF FILL-POINTER)
1520 are signalled correctly. (thanks to Stas Boukarev)
1521 * bug fix: SET-MACRO-CHARACTER accepts NIL as the readtable
1522 designator. (thanks to Tobias Rittweiler)
1523 * bug fix: SET-DISPATCH-MACRO-CHARACTER accepts NIL as the readtable
1524 designator, and returns T instead of the function. (thanks to
1526 * bug fix: direct superclasses of STANDARD-CLASS and
1527 FUNCALLABLE-STANDARD-CLASS now default to STANDARD-OBJECT and
1528 FUNCALLABLE-STANDARD-OBJECT as required by AMOP.
1529 * bug fix: compiling a call to SLOT-VALUE with a constant slot-name
1530 when no class with the named slot yet exists no longer causes a
1531 compile-time style-warning.
1532 * bug fix: :ALLOCATION :CLASS slots are type-checked properly
1533 in safe code. (reported by Didier Verna)
1534 * bug fix: #430; nested structure constructors can stack allocate.
1535 * bug fix: on some 64-bit platforms dynamic space size was truncated
1536 to #xffff0000 bytes. (reported by Benjamin Lambert)
1537 * bug fix: setting *READ-SUPPRESS* to T no longer renders the default
1538 REPL unusable. (reported by Daniel Herring)
1539 * bug fix: return values of READ-SEQUENCE did not take :START into
1540 account on file streams, regressions since 1.0.12.22. (reported by
1541 Thomas Russ, patch by Paul Khuong)
1542 * bug fix: using SET or (SETF SYMBOL-VALUE) to change the value of a
1543 method specializer used to confuse permuation vector optimization.
1544 * bug fix: system inserted bogus implicit type declarations for local
1545 special variables in DEFMETHOD bodies.
1546 * bug fix: #354; duplicated frames in backtraces due to
1547 non-tail-call-optimized XEPs to functions with return type NIL
1549 * bug fix: #357; MAKE-INSTANCE/SHARED-INITIALIZE now
1550 initializes structure object slots according to DEFSTRUCT initforms,
1551 and DEFSTRUCT forms :INCLUDEind structure classes defined using
1552 DEFCLASS :METACLASS STRUCTURE-CLASS now inherit their initforms.
1553 (reported by Bruno Haible and Stephen Wilson)
1554 * bug fix: #395; fill-pointer output streams used now support
1555 element-type BASE-CHAR as well.
1556 * bug fix: compiler error when attempting to derive return value of
1557 ARRAY-ELEMENT-TYPE when the array type was a union of intersection
1559 * bug fix: address-spaces overlapped on OpenBSD. (thanks to Josh
1561 * bug fix: Mac OS X binaries should now be portable between Leopard
1564 changes in sbcl-1.0.23 relative to 1.0.22:
1565 * enhancement: when disassembling method functions, disassembly
1566 for the associated fast function is also produced.
1567 * enhancement: system stores DEFTYPE lambda-lists, so DESCRIBE can
1569 * optimization: printing with *PRINT-PRETTY* true is now more
1570 efficient as long as the object being printed doesn't require
1571 special handling by the pretty printer.
1572 * bug fix: slot symbol-macros from WITH-SLOTS inside DEFMETHOD bodies
1573 now interact correctly with type declarations.
1574 * partial bug fix: PCL detects infinite recursion during wrapper
1575 validation. (thanks to Attila Lendvai)
1576 * bug fix: #426; nested function calls are inlined properly.
1577 Previously if FOO was an inline function, in calls of the form
1578 (FOO (FOO ...)) the outer call was not inlined.
1579 * bug fix: long long arguments passed in registers to alien
1580 functions on PowerPC Linux and NetBSD are now handled correctly
1581 when preceded by SYSTEM-AREA-POINTERs. (reported by Josh Elsasser)
1583 changes in sbcl-1.0.22 relative to 1.0.21:
1584 * minor incompatible change: LOAD-SHARED-OBJECT no longer by default looks
1585 for the shared object in the current directory, but passes the native
1586 namestring of the designated pathname to the operation system's shared
1587 object loading function as-it.
1588 * minor incompatible change: --disable-debugger toplevel option now takes
1589 effect before processing of initialization files and --eval or --load
1591 * new feature: new commandline argument: --script, which supports
1592 shebang lines. See documentation for details. (based on work by
1594 * new feature: SAVE-LISP-AND-DIE can save current values of
1595 --dynamic-space-size and --control-stack-size in the executable core,
1596 causing it to skip normal runtime option processing. See documentation
1597 for details. (thanks to Zach Beane)
1598 * enhancement: inoccous calls to EVAL or generic functions dispatching
1599 on subclasses of eg. STREAM no longer cause compiler notes to appear.
1600 * enhancement: the system no longer resignals errors from --load and
1601 --eval toplevel arguments as SIMPLE-ERRORS, which caused restarts
1602 associated with the original error to be lost. (thanks to Ariel
1604 * enhancement: :DONT-SAVE keyword argument has been added to
1605 LOAD-SHARED-OBJECT for controlling interaction with
1606 SAVE-LISP-AND-DIE, and UNLOAD-SHARED-OBJECT can be used to undo
1607 the effects of an earlier LOAD-SHARED-OBJECT call.
1608 * bug fix: ADJUST-ARRAY on multidimensional arrays used bogusly give
1609 them a fill pointer unless :DISPLACED-TO or :INITIAL-CONTENTS were
1610 provided. (reported by Cedric St-Jean)
1611 * bug fix: circularity handling in the reader did not treat raw
1612 structure slots correctly. (reported by Cedric St-Jean)
1613 * bug fix: SERVE-EVENT occasionally signaled an error about bogus
1614 file descriptors when there were none.
1615 * bug fix: DEFINE-COMPILER-MACRO support of destructuring lambda-lists
1616 was broken. (reporteed by Willem Broekema)
1617 * bug fix: SB-EXT:NATIVE-NAMESTRING on Windows did not work on
1618 pathnames without a directory.
1619 * bug fix: COMPILE-FILE did not warn about undefined variable
1620 references at toplevel, and LOAD of the resulting fasl did
1621 not signal an error.
1622 * bug fix: functions with non-required arguments used to end up with
1623 (SB-C::&OPTIONAL-DISPATCH ...) as their name.
1624 * bug fix: redefining a function with non-required arguments didn't
1625 update the system's knowledge about its call signature properly.
1626 * bug fix: fixed #431; incompatible alien record type redefinitions
1627 are detected and handled. (reported by Neil Haven)
1628 * bug fix: using RESTRICT-COMPILER-POLICY with DEBUG 3 could cause
1629 PROGV miscompilation. (reported by Matthias Benkard, patch by Juho
1631 * bug fix: on x86 and x86-64 backtraces were sometimes truncated
1632 after alien stack frames.
1633 * bug fix: strings passed to mk{s,d}temp lacked null termination
1635 changes in sbcl-1.0.21 relative to 1.0.20:
1636 * new feature: the compiler is able to track the effective type of a
1637 generic function across method addition and removal.
1638 * new feature: SB-EXT:ATOMIC-INCF allows atomic incrementation of
1639 appropriately typed structure slots without locking.
1640 * new feature: SB-EXT:CALL-WITH-TIMING provides access to timing
1641 information like those gathered by TIME using a programming-friendly
1643 * new feature: TIME reports time taken even if the form performs a
1644 non-local transfer of control.
1645 * enhancement: reduced conservativism on GENCGC platforms: on
1646 average 45% less pages pinned (measured from SBCL self build).
1647 * bug fix: SB-EXT:COMPARE-AND-SWAP on SYMBOL-VALUE can no longer
1648 mutate constant symbols or violate declaimed type of the symbol.
1649 * bug fix: SB-THREAD:SIGNAL-SEMAPHORE could fail to wakeup threads
1650 sleeping on the semaphore in heavily contested semaphores.
1651 * bug fix: semaphores and condition variables were not interrupt
1653 * bug fix: SB-THREAD:CONDITION-WAIT doesn't allow waits on mutexes
1654 owned by other threads anymore.
1655 * bug fix: FIND on lists called KEY outside the specified
1656 subsequence. (reported by budden)
1657 * bug fix: LOG doesn't use single-float intermediate results when
1658 given mixed integer and double-float arguments, leading to better
1659 precision. (reported by Bob Felts)
1660 * bug fix: LOG with base zero returned values of inconsistent type.
1662 changes in sbcl-1.0.20 relative to 1.0.19:
1663 * minor incompatible change: OPTIMIZE qualities
1664 SB-C::STACK-ALLOCATE-DYNAMIC-EXTENT, SB-C::STACK-ALLOCATE-VECTOR,
1665 and SB-C::STACK-ALLOCATE-VALUE-CELLS no longer exist. See documentation
1666 and SB-EXT:*STACK-ALLOCATE-DYNAMIC-EXTENT* for details.
1667 * documentation: some slot access efficiency guidelines have been
1668 added to the user manual.
1669 * optimization: ASSOC-IF, ASSOC-IF-NOT, MEMBER-IF, MEMBER-IF-NOT,
1670 RASSOC, RASSOC-IF, and RASSOC-IF-NOT are now equally efficient
1671 as ASSOC and MEMEBER.
1672 * optimization: calls to ASSOC, MEMBER, and RASSOC can be transformed
1673 to more efficient EQ-comparison versions more often.
1674 * optimization: enhanced derivation of DOLIST iteration variable type
1676 * optimization: constant folding of simple (LIST ...) forms as DOLIST
1678 * optimization: runtime lookup of function definitions can be
1679 elided in more cases, eg: (let ((x 'foo)) (funcall foo)).
1680 * optimization: compiler is able to derive the return type of
1681 (AREF (THE STRING X) Y) as being CHARACTER.
1682 * optimization: CLRHASH on empty hash-tables no longer does pointless
1683 work. (thanks to Alec Berryman)
1684 * optimization: REPLACE deftransforms don't punt when :START1 or
1686 * bug fix: compiling DESTRUCTURING-BIND on constant list arguments
1687 no longer emits a code deletion note. (reported by Andrew
1689 * bug fix: bogus odd-number-of-keywords STYLE-WARNINGs from calls to
1690 functions with an odd number of &OPTIONAL arguments, a &REST
1691 argument, and one or more &KEY arguments at the call site.
1692 * bug fix: STYLE-WARNINGs for functions with both &OPTIONAL and &KEY
1693 arguments appeared at call sites as well.
1694 * bug fix: fixed #425; CLOSE drops input buffers from streams, so
1695 READ-LINE &co can no longer read from them afterwards. (reported
1697 * bug fix: fixed #427: unused local aliens no longer cause compiler
1698 breakage. (reported by Stelian Ionescu, Andy Hefner and Stanislaw
1700 * bug fix: non-local exit from a WITH-ALIEN form no longer causes
1701 alien-stack leakage. (reported by Andy Hefner)
1702 * bug fix: PROGV signals an error when an attempt to violate declared
1703 type of a variable or bind a constant is made.
1704 * bug fix: SET signals an error when an attempt to violate declared
1705 type of a variable is made.
1706 * bug fix: restart computation during the execution of a restart
1707 test function no longer causes infinite recursion. (reported by
1709 * bug fix: calling SB-COVER:REPORT with a non-directory pathname now
1710 signals an error. (thanks to Pierre Mai)
1711 * bug fix: EXPORT left symbol unexported in conflict situations.
1712 (thanks to Michael Weber)
1713 * bug fix: correctly handle name conflicts involving CL:NIL.
1714 (thanks to Michael Weber)
1715 * bug fix: RESOLVE-CONFLICT restart for name conflicts handles
1716 conflicts arising from USEing package with conflicting symbols
1717 correctly. (thanks to Michael Weber)
1719 changes in sbcl-1.0.19 relative to 1.0.18:
1720 * new feature: user-customizable variable SB-EXT:*MUFFLED-WARNINGS*;
1721 warnings that go otherwise unhandled will be muffled if they are
1722 of the type that's the value of this variable.
1723 * optimization: stack allocation is slightly more efficient on x86
1725 * bug fix: DEFSTRUCT forms with user-specified :CONSTRUCTOR options,
1726 where a raw slot always is initialized using the initform whose
1727 type is not know sufficiently well a compile-time are now compiled
1728 correctly. (reported by John Morrison)
1729 * bug fix: compiler no longer makes erronous assumptions in the
1730 presence of non-foldable SATISFIES types.
1731 * bug fix: stack analysis missed cleanups of dynamic-extent
1732 arguments in non-let-converted calls to local functions.
1733 * improvements to the Windows port:
1734 ** adjusted address spaces for building on both Win32 and
1735 Win64. (thanks for John Connors)
1736 * fixed some bugs revealed by Paul Dietz' test suite:
1737 ** interval arithmetic during type derivation used inexact integer
1738 to single-float coercions.
1739 ** arithmetic operations involving large integers and single
1740 floats give the same results in compiled and interpreted code.
1741 ** deriving the result type of COERCE no longer signals an error
1742 if the derived type of the second argument is a MEMBER type
1743 containing invalid type specifiers.
1744 ** ADJOIN with constant NIL as second argument works correctly.
1745 ** FUNCTION-KEYWORDS was called SB-PCL::FUNCTION-KEYWORD-PARAMETERS.
1747 changes in sbcl-1.0.18 relative to 1.0.17:
1748 * minor incompatible change: SB-SPROF:WITH-PROFILING now by default
1749 profiles only the current thread.
1750 * minor incompatible change: changes to SYMBOL-VALUE of constants
1751 defined with DEFCONSTANT now signal an error.
1752 * enhancement: SB-SPROF now has support for wallclock profiling,
1753 and is also able to profile specific threads. REPORT output
1754 has also additional sorting options.
1755 * enhancement: better pretty-printing of DEFPACKAGE forms. (Thanks
1757 * optimization: structure allocation has been improved
1758 ** constructors created by non-toplevel DEFSTRUCTs are ~40% faster.
1759 ** out of line constructors are ~10% faster.
1760 ** inline constructors are ~15% faster.
1761 ** inline constructors are capable of dynamic extent allocation
1762 (generally on x86 and x86-64, in some cases on other platforms
1764 * optimization: simple uses of HANDLER-CASE and HANDLER-BIND no
1766 * optimization: file compiler is now able to coalesce non-circular
1767 lists, non-base strings, and bit-vectors. Additionally, constants
1768 are never referenced through SYMBOL-VALUE at runtime.
1769 * optimization: code defining methods on PRINT-OBJECT (and other
1770 generic functions in the COMMON-LISP package) now loads faster.
1771 * bug fix: EAI_NODATA is deprecated since RFC 3493. Stop using it
1773 * bug fix: if COMPILE-FILE aborts due to an unwind, the partial
1774 fasl is now deleted. (reported by Attila Lendvai)
1775 * bug fix: READ-LINE always returned NIL for the last line in files.
1776 (reported by Yoshinori Tahara)
1777 * bug fix: more accurate disassembly annotations of foreign function
1778 calls. (thanks to Andy Hefner)
1779 * bug fix: trimming non-simple strings and non-string string
1780 designators when the there is nothing to trim works properly.
1781 (thanks to James Knight)
1782 * new feature: SB-POSIX bindings for mlockall, munlockall, and setsid.
1783 (thanks to Travis Cross)
1784 * fixed some bugs revealed by Paul Dietz' test suite:
1785 ** NIL is a valid function name (regression at 1.0.13.38)
1786 ** FILL on lists was missing its return value (regression at 1.0.12.27)
1787 ** STRING-TRIM, STRING-LEFT-TRIM, and STRING-RIGHT-TRIM did not respect
1788 fill pointers properly (regression at 1.0.12.23)
1789 ** STRING-TRIM, STRING-LEFT-TRIM, and STRING-RIGHT-TRIM did not respect
1790 displacement indices properly (regression at 1.0.12.23)
1792 changes in sbcl-1.0.17 relative to 1.0.16:
1793 * temporary regression: user code can no longer allocate closure
1794 variable storage on stack, due to bug 419 without explicitly
1795 requesting it. Please consult sbcl-devel for advice if you need to
1796 use this feature in the meanwhile.
1797 * new feature: runtime argument --control-stack-size can be used to
1798 adjust thread default control stack size.
1799 * enhancement: improved TIME output
1800 ** all times are reported using the measured accuracy (milliseconds
1801 for real and GC times, microseconds for everything else.)
1802 ** processor cycle counts on x86 and x86-64.
1803 ** interpreted forms are counted for both evaluator modes.
1804 ** number of lambdas converted by the compiler is reported.
1805 ** CPU percentage report (computed from real and total run time.)
1806 ** more comprehensive run time reporting, using a condenced format
1807 ** interperted form, lambda, and page fault counts are omitted
1809 * optimization: ADJOIN and PUSHNEW are upto ~70% faster in normal
1811 * optimization: APPEND is upto ~10% faster in normal SPEED policies.
1812 * optimization: two argument forms of LAST are upto ~10% faster
1813 in normal SPEED policies.
1814 * optimization: NCONC no longer needs to heap cons its &REST list
1815 in normal SPEED policies.
1816 * bug fix: SB-FLUID build feature no longer breaks the build. (thanks
1817 to Sidney Markowitz)
1818 * bug fix: UNION and NUNION work with :TEST-NOT once more,
1819 regression since 1.0.9.1. (thanks to Eric Marsden)
1820 * bug fix: result of MAKE-ARRAY can be stack allocated - regression
1821 since 1.0.15.36. (thanks to Paul Khuong)
1822 * bug fix: LAST when always returned the whole list when given a bignum
1823 as the second argument.
1824 * bug fix: dynamic extent allocation of nested lists and vectors
1825 could leak to otherwise accessible parts.
1826 * bug fix: invalid optimization of heap-allocated alien variable
1828 * bug fix: fasl header checking is less vulnerable to different
1829 platform word lengths.
1830 * bug fix: more correct assembler syntax for GNU binutils
1831 2.18.50.0.4 support. (thanks to Marijn Schouten)
1832 * bug fix: fix ECASE warnings from CMUCL-as-xc-host. (reported by
1834 * bug fix: the fopcompiler can handle LOCALLY forms (with no
1835 declarations) successfully. (reported by Attila Lendvai)
1837 changes in sbcl-1.0.16 relative to 1.0.15:
1838 * minor incompatible change: revert the changes to sb-posix's error
1839 signaling added in 1.0.14.
1840 * minor incompatible change: change PROBE-FILE back to returning
1841 NIL whenever we can't get a truename, as was the case before 1.0.14.
1842 * minor incompatible change: SB-BSD-SOCKETS:NAME-SERVICE-ERROR now
1843 inherits from ERROR instead of just CONDITION.
1844 * new feature: SB-INTROSPECT can provide source locations for instances
1845 as well. (thanks to Tobias Rittweiler)
1846 * optimization: binding special variables now generates smaller code
1847 on threaded platforms.
1848 * optimization: MEMBER and ASSOC are over 50% faster for :TEST #'EQ
1849 and cases where no :TEST is given but the compiler can infer that
1850 the element to search is of type (OR FIXNUM (NOT NUMBER)).
1851 * optimization: better LOGNOT on fixnums.
1852 * optimization: modular arithmetic for a particular requested width
1853 is implemented using a tagged representation unless a better
1854 representation is available.
1855 * fixed bug 423: TRULY-THE and *CHECK-CONSISTENCY* interaction.
1856 * bug fix: SB-BSD-SOCKETS:MAKE-INET-ADDRESS checks the input string
1857 for wellformedness and returns a specialized vector. (reported by
1858 Francois-Rene Rideau)
1859 * bug fix: FIND-CLASS was not thread-safe. (reported by Attila Lendvai)
1860 * bug fix: ~R was broken for vigtillions. (thanks to Luis Oliveira)
1861 * bug fix: attempt to obtain *SCHEDULER-LOCK* recursively when
1862 unscheduling timer at the same time as another timer fires.
1863 * bug fix: don't reschedule timers for dead threads.
1864 * bug fix: periodic polling was broken. (thanks to Espen S Johnsen)
1865 * bug fix: copying output from RUN-PROGRAM to a stream signalled
1866 bogus errors if select() was interrupted.
1867 * enhancement: add support for fcntl's struct flock to SB-POSIX.
1869 changes in sbcl-1.0.15 relative to sbcl-1.0.14:
1870 * enhancement: cleaner backtraces for interactive interrupts, as
1871 well as other cases where the interesting frames used to be
1872 obscured by interrupt handling frames.
1873 * enhancement: untracing a whole package using (UNTRACE "FOO") is
1874 now supported, and tracing a whole package using (TRACE "FOO") now
1875 traces SETF-functions as well.
1876 * enhancement: implement SB-POSIX:MKTEMP and SB-POSIX:MKDTEMP.
1877 * SB-DEBUG:PRINT-FRAME-CALL now prints the entry-point kind even
1878 when SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS* is NIL.
1879 * unreadably printed representation of hash-tables now includes
1881 * bug fix: partially fixed #188: type propagation from assignments
1882 is now more efficient.
1883 * bug fix: fixed #407: (COERCE X 'SINGLE-FLOAT) and (COERCE X
1884 'DOUBLE-FLOAT) are not flushable.
1885 * bug fix: on x86 and x86-64 pointer based EQ-hashing now uses the
1886 full address of the object, and none of the tag bits.
1887 * bug fix: readably printing hash-tables now respects other printer
1888 control variables. (reported by Cedric St-Jean)
1889 * bug fix: compiler gave a bogus STYLE-WARNING for the :SYNCHRONIZED
1890 keyword with MAKE-HASH-TABLE.
1891 * bug fix: export SB-POSIX:MKSTEMP.
1892 * bug fix: SORT was not interrupt safe.
1893 * bug fix: XREF accounts for the last node of each basic-block as
1895 * bug fix: MAKE-INSTANCE optimizations interacted badly with
1896 non-keyword :DEFAULT-INITARGS in the presence of :BEFORE/:AFTER
1897 methods on SHARED-INITIALIZE. (thanks to Matt Marjanovic)
1898 * bug fix: the CTOR optimization for MAKE-INSTANCE should no longer
1899 create obsolete instances in the case of redefinition or
1900 obsoletion of a superclass. (thanks to Andy Hefner)
1901 * bug fix: Support for the Alpha architecture has been revived; it had
1902 suffered somewhat from lack of maintenance since sbcl-1.0.
1903 * improvements to the Windows port:
1904 ** The system detects the codepage to use at startup, instead of
1905 using the value from the saved core. (thanks to Kei Suzuki)
1907 changes in sbcl-1.0.14 relative to sbcl-1.0.13:
1908 * new feature: SB-EXT:*EXIT-HOOKS* are called when the process exits
1909 (see documentation for details.)
1910 * revived support for OpenBSD (contributed by Josh Elsasser)
1911 * partially fixed bug #108: ROOM no longer suffers from occasional
1912 (AVER (SAP= CURRENT END)) failures.
1913 * fixed bug #402: proclaimed non-standard declarations in DEFMETHOD
1914 bodies no longer cause a WARNING to be signalled. (reported by
1916 * bug fix: (TRUNCATE X 0) when X is a bignum now correctly signals
1917 DIVISION-BY-ZERO. Similarly for MOD and REM (which suffered due to
1918 the bug in TRUNCATE.) (reported by Michael Weber)
1919 * bug fix: SB-SPROF:REPORT no longer signals an error if there are
1920 no samples. (reported by Andy Hefner)
1921 * bug fix: functions compiled using (COMPILE NIL '(LAMBDA ...))
1922 no longer appear as (NIL ...) frames in backtraces.
1923 * bug fix: RESOLVE-CONFLICT (and the other name conflict machinery)
1924 is now actually exported from SB-EXT as documented. (reported by
1926 * bug fix: sb-aclrepl now correctly understands how to inspect
1927 single-floats on 64-bit platforms where single-floats are not boxed.
1928 * bug fix: SB-MOP:CLASS-SLOTS now signals an error if the class has not
1929 yet been finalized. (reported by Levente Meszaros)
1930 * bug fix: CLOSE :ABORT T behaves more correctly on Windows.
1931 * DESCRIBE and (DOCUMENTATION ... 'OPTIMIZE) describe meaning of
1932 SBCL-specific optimize qualities.
1934 changes in sbcl-1.0.13 relative to sbcl-1.0.12:
1935 * minor incompatible change: RUN-PROGRAM now uses execvp(3) to find
1936 an executable in the search path, and does so in the child
1937 process's PATH. The function FIND-EXECUTABLE-IN-SEARCH-PATH has
1938 been removed; it can be found in the CVS history, for somebody who
1939 needs that search behavior (see the manual).
1940 * minor incompatible change: compiler policy re. weakening type
1941 checks has changed: now type checks are weakened only if SAFETY < 2
1943 * SB-EXT:NATIVE-NAMESTRING takes a new keyword AS-FILE, forcing
1944 unparsing of directory pathnames as files. Analogously,
1945 SB-EXT:PARSE-NATIVE-NAMESTRING takes an AS-DIRECTORY, forcing a
1946 filename to parse into a directory pathname.
1947 * enhancement: implicit generic function creation now signals a
1948 specific style-warning IMPLICIT-GENERIC-FUNCTION-WARNING, which
1949 users can bind handlers for and muffle around calls to LOAD.
1950 * enhancement: RUN-PROGRAM allows unicode arguments and environments
1951 to be used (using the default stream external format), and allows
1952 non-simple strings to be used. (thanks to Harald Hanche-Olsen)
1953 * optimization: COPY-SEQ, FILL, and SUBSEQ are 30-80% faster for
1954 strings and vectors whose element-type or simplicity is not fully
1955 known at compile-time.
1956 * optimization: STRING-TRIM and related functions no longer allocate
1957 a new string when no trimming needs to be performed. These functions
1958 are also faster than before when the input string has been declared
1960 * optimization: READ-SEQUENCE on simple-strings is up to 80% faster.
1961 * optimization: READ-LINE is significantly faster for files containing
1963 * optimization: non-open coded uses of character comparison operators
1964 (e.g. char=) no longer cons when called with more than one parameter
1965 on platforms supporting dynamic-extent allocation.
1966 * bug fix: READ-SEQUENCE on composite stream wrapping a Gray stream
1967 with STREAM-ELEMENT-TYPE (UNSIGNED-BYTE 8) signalled an error.
1968 * bug fix: COPY-SEQ on lists did not signal a type-error on improper
1970 * bug fix: some sequence functions elided bounds checking when
1972 * bug fix: too liberal weakening of union-type checks when SPEED >
1974 * bug fix: more bogus fixnum declarations in ROOM implementation
1977 changes in sbcl-1.0.12 relative to sbcl-1.0.11:
1978 * new feature: MAKE-HASH-TABLE now experimentally accepts a
1979 :SYNCHRONIZED argument, which makes the hash-table safe for
1980 concurrent accesses (but not iteration.) See also:
1981 SB-EXT:WITH-LOCKED-HASH-TABLE, and
1982 SB-EXT:HASH-TABLE-SYNCHRONIZED-P.
1983 * optimization: CONCATENATE on strings is an order of magnitude faster
1984 in code compiled with (> SPEED SPACE).
1985 * optimization: SUBSEQ is ~50% faster on lists.
1986 * bug fix: bug 417 fixed -- source location reporting is now more robust.
1987 * bug fix: SUBSEQ on a list will now correctly signal an error if if
1988 END is smaller then START.
1989 * bug fix: SB-PROFILE will no longer report extra consing for nested
1990 calls to profiled functions.
1991 * bug fix: ROOM implementation had bogus fixnum declarations which
1992 could cause type-errors when calling ROOM on large images.
1993 * bug fix: if file compilation is aborted, the partial fasl is now
1994 deleted, and COMPILE-FILE returns NIL as the primary value.
1995 * bug fix: number of thread safety issues relating to SBCL's internal
1996 hash-table usage have been fixed.
1997 * bug fix: SB-SYS:WITH-PINNED-OBJECTS could cause garbage values to
1998 be returned from its body when the values were being returned
1999 using unknown-values return convection and the W-P-O was wrapped
2000 inside an UNWIND-PROTECT.
2001 * bug fix: sb-posix should now compile again under Windows, enabling
2002 slime to work again.
2004 changes in sbcl-1.0.11 relative to sbcl-1.0.10:
2005 * incompatible change: hash-table accessor functions are no longer
2006 automatically protected by locks. Concurrent accesses on the same hash-table
2007 from multiple threads can give inconsistent results or even corrupt the
2008 hash-table completely. Multi-threaded applications should do their own
2009 locking at the correct granularity. In the current implementation it is
2010 still safe to have multiple readers access the same table, but it's not
2011 guaranteed that this property will be maintained in future releases.
2012 * minor incompatible change: (SETF MUTEX-VALUE) is not longer supported,
2013 and will signal an error at runtime.
2014 * enhancement: SB-THREAD package now exports a semaphore interface.
2015 * enhancement: CONS can now stack-allocate on x86 and
2016 x86-64. (Earlier LIST and LIST* supported stack-allocation, but
2018 * enhancement: nested lists can now be stack allocated on
2019 platforms providing stack allocation support.
2020 * enhancement: dynamic-extent support has been extended to support
2021 cases where there are multiple possible sources for the stack
2023 * optimization: RELEASE-MUTEX no longer needs to perform a syscall
2024 if the mutex is uncontested on Linux.
2025 * bug fix: symbol-macro expansion now uses the *MACROEXPAND-HOOK*
2026 as specified by the CLHS. (thanks to Tobias Rittweiler)
2027 * bug fix: NaN comparison now works on x86-64.
2028 * bug fix: CLOSE :ABORT T on a stream with pending output now
2030 * bug fix: instances of non-standard metaclasses using standard
2031 instance structure protocol sometimes missed the slot type checks
2033 * bug fix: known functions can be inlined in high-debug code.
2035 changes in sbcl-1.0.10 relative to sbcl-1.0.9:
2036 * minor incompatible change: the MSI installer on Windows no longer
2037 associates .lisp and .fasl files with the installed SBCL.
2038 * minor incompatible change: :UNIX is no longer present in *FEATURES*
2039 on Windows. (thanks to Luis Oliviera)
2040 * new feature: SB-CLTL2 contrib module now implements
2041 FUNCTION-INFORMATION. (thanks to Larry D'Anna)
2042 * optimization: scavenging weak pointers is now more efficient,
2043 requiring O(1) instead of O(N) per weak pointer to identify
2044 scanvenged vs. unscavenged pointers. (thanks to Paul Khuong)
2045 * optimization: typechecking (SETF SLOT-VALUE) is now ~5x faster in
2046 method bodies using constant slot-names when the first argument is
2047 a specializer parameter for the method.
2048 * optimization: SLOT-VALUE &co are now ~50% faster for variable slot
2049 names, when the class of the instance is a direct instance
2050 STANDARD-CLASS or FUNCALLABLE-STANDARD-CLASS (making them only 3x
2051 as slow as the constant slot-name case.)
2052 * optimization: member type construction is now O(N) instead
2054 * optimization: UNION and NUNION are now O(N+M) for large
2055 inputs as long as the :TEST function is one of EQ, EQL, EQUAL, or
2057 * enhancement: DEFINE-MODIFY-MACRO lambda-list information is
2058 now more readable in environments like Slime which display it.
2059 (thanks to Tobias C. Rittweiler)
2060 * bug fix: SB-EXT:COMPARE-AND-SWAP was non-atomic unless the compiler
2061 was able to infer the correct argument type for the object on which
2062 the CAS operation was being performed.
2063 * bug fix: copy propagation interfered with parallel assignment
2064 semantics in local calls. (reported by Paul Khuong)
2065 * bug fix: the signed modular fixnum shift compiled to wrong code on
2066 x86 and x86-64. (spotted by a slight modification to some of
2069 changes in sbcl-1.0.9 relative to sbcl-1.0.8:
2070 * minor incompatible change: SB-SYS:OUTPUT-RAW-BYTES is deprecated.
2071 * enhancement: SB-EXT:FINALIZE accepts a :DONT-SAVE keyword argument,
2072 indicating the finalizer should be cancelled when SAVE-LISP-AND-DIE
2074 * enhancement: default PRINT-OBJECT methods for classes, slot-definitions,
2075 and generic function now print the object identity for anonymous
2076 instances. (thanks to Attila Lendvai)
2077 * enhancement: as an extension to MOP, SBCL now supports SETF of
2078 STANDARD-INSTANCE-ACCESS and FUNCALLABLE-STANDARD-INSTANCE-ACCESS.
2079 (thanks to Attila Lendvai)
2080 * enhancement: sb-cover has an alternate annotation mode which puts
2081 the form annotations at the car of the form, instead of annotating
2082 it completely. The benefit of this mode is that it shows better
2083 which forms were instrumented by the compiler.
2084 * bug fix: new compiler transforms for MEMBER and ASSOC were affected
2085 by printer control variables. (reported by Dan Corkill)
2086 * bug fix: system leaked memory when delayed output was performed by
2087 the OS in smaller chunks then expected. (thanks to David Smith)
2088 * bug fix: system leaked memory when file streams were not closed
2090 * bug fix: large objects written to slow streams that were modified
2091 after the write could end up with the modified state written to
2092 the underlying file descriptor.
2093 * bug fix: multiple threads operating in parallel on the same stream
2094 could cause buffer-overflows.
2095 * bug fix: source location information is stored correctly
2096 (broken since 1.0.6). This bug would generally show up as the
2097 Slime debugger highlighting the wrong form when the sldb-show-source
2099 * bug fix: Branch forms are again annotated as branches in the sb-cover
2101 * bug fix: GCD on MOST-NEGATIVE-FIXNUM no longer causes an infinite loop
2102 on x86-64. (reported by Gregory Vanuxem)
2103 * bug fix: EQUALP could return wrong results for structures with raw
2104 slots (slots with a :TYPE of SINGLE-FLOAT, DOUBLE-FLOAT, or a machine
2105 word). (reported by Vjacheslav Fyodorov)
2106 * bug fix: sb-sprof sampling didn't work on non-x86oid platforms. (patch
2109 changes in sbcl-1.0.8 relative to sbcl-1.0.7:
2110 * enhancement: experimental macro SB-EXT:COMPARE-AND-SWAP provides
2111 atomic compare-and-swap operations on threaded platforms.
2112 * enhancement: experimental function SB-EXT:RESTRICT-COMPILER-POLICY
2113 allows assigning a global minimum value to optimization qualities
2114 (overriding proclamations and declarations).
2115 * enhancement: closed over variables can be stack-allocated on x86
2117 * performance bug fix: GETHASH and (SETF GETHASH) are once again
2119 * optimization: slot definition lookup is now O(1). This speeds up
2120 eg. SLOT-VALUE and (SETF SLOT-VALUE) with variable slot names.
2121 * optimization: STRING-TO-OCTETS is now up to 60% faster for UTF-8.
2122 * optimization: ASSOC and MEMBER can now be open-coded for all
2123 combinations of keyword arguments when second argument is constant
2124 and SPEED >= SPACE. In other cases a specialized version is
2126 * bug fix: using obsoleted structure instances with TYPEP and
2127 generic functions now signals a sensible error.
2128 * bug fix: threads waiting on GET-FOREGROUND can be interrupted.
2129 (reported by Kristoffer Kvello)
2130 * bug fix: backtrace construction is now more careful when making
2131 lisp-objects from pointers on the stack, to avoid creating bogus
2132 objects that can be seen by the GC.
2133 * bug fix: defaulting of values in contexts expecting more than 7
2134 variables now works on x86-64. (reported by Christopher Laux)
2135 * bug fix: modifications to packages (INTERN, EXPORT, etc) are now
2137 * bug fix: (SETF SYMBOL-PLIST) no longer allows assigning a non-list
2138 as the property-list of a symbol.
2139 * bug fix: DEFMETHOD forms with CALL-NEXT-METHOD in the method body,
2140 in EVAL-WHEN forms with both :COMPILE-TOPLEVEL and :LOAD-TOPLEVEL
2141 situations requested, are once again file-compileable. (reported
2144 changes in sbcl-1.0.7 relative to sbcl-1.0.6:
2145 * MOP improvement: support for user-defined subclasses of
2146 SB-MOP:SPECIALIZER has been enhanced. The experimental interface
2147 function SB-PCL:MAKE-METHOD-SPECIALIZERS-FORM, called as part of
2148 the expansion of DEFMETHOD, is responsible for generating a form
2149 which creates a list of specializers when evaluated. Additional
2150 functions SB-PCL:[UN]PARSE-SPECIALIZER-USING-CLASS provide
2151 debugging and introspective support.
2152 * minor incompatible change: the (unsupported) spinlock interface
2153 has changed: free spinlock now has the value NIL, and a held spinlock
2154 has the owning thread as its value.
2155 * enhancement: WITHOUT-INTERRUPTS now binds ALLOW-WITH-INTERRUPTS and
2156 WITH-LOCAL-INTERRUPTS as local macros. Refer to documentation string
2158 * enhancement: name of a socket-stream is now "a socket" instead of
2159 "a constant string".
2160 * enhancement: SB-POSIX now supports lockf(). (Thanks to Zach Beane.)
2161 * enhancement: SB-POSIX now supports getcwd(). (Thanks to Tassilo Horn.)
2162 * enhancement: SB-INTROSPECT:FUNCTION-ARGLIST shows nicer argument lists
2163 for generic functions. (Thanks to Tobias C. Rittweiler)
2164 * optimization: bignum printing speed has been improved by 20-40%
2165 (depending on the bignum size.)
2166 * bug fix: WITH-MUTEX and WITH-RECURSIVE-LOCK are now interrupt safe
2168 * bug fix: the cache used by the CLOS to store precomputed effective
2169 methods, slot offsets, and constant return values is now thread and
2171 * bug fix: generic function dispatch function updating is now thread
2172 and interrupt safe (in the sense that the known issues have been
2174 * bug fix: ADD/REMOVE-METHOD is now thread and interrupt safe.
2175 * bug fix: interning EQL-specializers is now thread and interrupt safe.
2176 * bug fix: asdf systems with dependencies to the SB-POSIX or
2177 SB-BSD-SOCKETS contribs can be loaded with :FORCE T.
2178 * bug fix: interrupt safety of applicable method computation has been
2181 changes in sbcl-1.0.6 relative to sbcl-1.0.5:
2182 * new contrib: sb-cover, an experimental code coverage tool, is included
2183 as a contrib module.
2184 * optimization: STRING-TO-OCTETS for unibyte encodings and UTF-8 is
2185 significantly faster.
2186 * optimization: calls of the form (AREF FOO (+ INDEX <constant>)) now
2187 produce more efficient code on x86-64 if the compiler can determine
2188 that (+ INDEX <constant>) does not require a bounds check and FOO
2189 has an element type at least 8 bits wide.
2190 * enhancement: a new, experimental synchronous timeout facility is
2191 provided. Refer to SB-SYS:WITH-DEADLINE for details.
2192 * enhancement: when a symbol name conflict error arises, the
2193 conflicting symbols are always printed with a package prefix.
2194 (thanks to Kevin Reid)
2195 * enhancement: stepping is now once again supported on the SPARC and
2196 MIPS platforms. (It is also now more likely to work on CheneyGC
2198 * enhancement: sb-sprof can now also track and report accurate call
2200 * bug fixes: the treatment of non-standard subclasses of
2201 SB-MOP:SPECIALIZER is more correct.
2202 * incompatible change: PURIFY no longer copies the data from the
2203 dynamic space into the static and read-only spaces on platforms
2204 that use the generational garbage collector
2205 * bug fix: GETHASH, (SETF GETHASH), CLRHASH and REMHASH are now
2207 * bug fix: GC race condition occasionally resulting in crashes with
2208 the error message "SIG_STOP_FOR_GC blocked at a bad place" has been
2210 * bug fix: &ENVIRONMENT variables in macro lambda lists can now be
2212 * bug fix: DEFSETF lambda lists without &ENVIRONMENT no longer cause
2213 a STYLE-WARNING to be signalled (regression from 1.0.4.)
2214 * bug fix: an asynchronous interrupt could previously leave the
2215 system running with GC inhibited.
2216 * bug fix: a DECLARE form evaluated at top-level now causes an error
2217 rather than silently (or verbosely) returning NIL.
2218 * bug fix: trying to dissassemble functions compiled at high DEBUG could
2219 result in a error being signalled due to source form lookup errors.
2220 (reported by Peter Graves)
2222 changes in sbcl-1.0.5 relative to sbcl-1.0.4:
2223 * incompatible change: removed writer methods for host-ent-name,
2224 host-ent-addresses -- changing the values did not update the DNS
2226 * minor incompatible change: changed experimental JOIN-THREAD interface
2227 * documentation: the manual now lists reader and writer methods
2228 in class slot documentation sections. (thanks to Richard M Kreuter)
2229 * documentation: unwinding from asyncronous events has been
2230 documented as unsafe.
2231 * documentation: SB-SYS:WITHOUT-GCING has been documented as unsafe
2232 in multithreaded application code.
2233 * optimization: GET-INTERNAL-REAL-TIME has been optimized on POSIX
2234 platforms. (thanks to James Anderson for the optimization hint)
2235 * optimization: REPLACE, SUBSEQ, and COPY-SEQ are now optimized in
2237 * optimization: STRING-{EQUAL,LESSP,GREATER-P} and their NOT-
2238 variants no longer cons.
2239 * optimization: Direct calls to CHAR-{EQUAL,LESSP,GREATERP} and
2240 their NOT- variants no longer cons.
2241 * optimization: EQUAL hash tables no longer use SXHASH for objects
2242 of all data types, but instead use an EQL hash for types for which
2243 EQUAL is the same as EQL.
2244 * optimization: the non-inlined generic versions of AREF and (SETF AREF)
2245 are significantly faster.
2246 * optimization: new STRING-OUTPUT-STREAM implementation is much
2247 faster for large outputs and conses 30% less on average.
2248 * enhancement: XREF information is now collected for references made
2249 to global variables using SYMBOL-VALUE and a constant argument.
2250 * enhancement: SIGINT now causes a specific condition
2251 SB-SYS:INTERACTIVE-INTERRUPT to be signalled.
2252 * bug fix: FILE-POSITION used to signal an error in some cases where
2253 ANSI requires it to return NIL.
2254 * bug fix: ADJUST-ARRAY is now interrupt-safe.
2255 * bug fix: adding and removing fd-handlers is now interrupt-safe.
2256 * bug fix: inlined calls to C now ensure 16byte stack alignment on
2258 * bug fix: bad type declaration in the CLOS implementation has
2259 been fixed. (reported by James Anderson)
2260 * bug fix: incorrect ROOM reporting on x86-64 has been fixed.
2261 (thanks to Lutz Euler)
2262 * bug fix: DEFSETF now allows &ENVIRONMENT and disallows &AUX as
2263 required by the CLHS. (reported by Samium Gromoff)
2264 * bug fix: dead unbound variable references now signal an error.
2265 (reported by Marco Monteiro)
2266 * bug fix: / with an unused value was being deleted in safe code.
2267 (thanks to Marco Monteiro and Kevin Reid)
2268 * bug fix: number of characters that can be written onto a single
2269 line in a file is unlimited.
2270 * bug fix: some GC deadlocks caused by asynchronous interrupts have
2271 been fixed by inhibiting interrupts for when GC is disabled.
2272 * bug fix: some interrupt safety issues with GETHASH, (SETF
2273 GETHASH), CLRHASH and REMHASH have been fixed.
2274 * bug fix: binding *BREAK-ON-SIGNALS* to a value that is not a type
2275 specifier no longer causes infinite recursion.
2276 * bug fix: SB-EXT:MUFFLE-CONDITIONS declarations no longer trigger a
2277 bogus warning in DEFMETHOD bodies. (reported by Kevin Reid)
2278 * bug fix: an &environment argument with the correct variable information
2279 is passed to macros that are expanded during byte compilation.
2280 (reported by Samium Gromoff)
2281 * bug fix: a logic error was causing the hash function for bignums to
2282 have excessive amounts of collisions. (reported by Faré Rideau)
2283 * bug fix: modifying the contents of an array could change the return
2284 value of SXHASH on that array, which is only allowed for strings
2285 and bit vectors. (bug introduced in 0.9.16)
2286 * improvement: the x86-64/darwin port now passes all tests (except
2287 for the debugger tests) but should still be considered
2288 experimental until this is fixed.
2289 * improvement: a style-warning is signaled for CASE (etc) clauses with
2290 duplicate keys. (thanks to Kevin Reid)
2291 * improvement: macos/x86 and macos/x86-64 now use mach exception
2292 handlers for dealing with illegal instructions (for trapping and
2293 error handling) and memory protection violations (for GC).
2295 changes in sbcl-1.0.4 relative to sbcl-1.0.3:
2296 * new platform: experimental support for x86-64/darwin (MacOS).
2297 * incompatible change: the thread-safe (on most platforms) getaddrinfo
2298 and getnameinfo sockets functions are used instead of gethostbyaddr
2299 and gethostbyname, on platforms where the newer functions are available.
2300 As a result, the ALIASES field of HOST-ENT will always be NIL on these
2302 * change: runtimes with embedded cores (i.e. saved with :EXECUTABLE T)
2303 don't print the startup banner, but behave as if --noinform was passed
2304 as a command line argument. (thanks to Kevin Reid)
2305 * new experimental feature: added JOIN-THREAD (by NIIMI Satoshi)
2306 * optimization: code using alien values with undeclared types is much faster.
2307 * optimization: the compiler is now able to open code SEARCH in more cases.
2308 * optimization: more compact typechecks on x86-64 (thanks to Lutz Euler)
2309 * bug fix: using standardized COMMON-LISP special variables as loop
2310 variables no longer signals bogus package lock violations. (reported
2312 * bug fix: declaring local loop variables to be of a range-limited type
2313 such as (SINGLE-FLOAT 1.0 2.0) no longer causes a compile-time error.
2314 (reported by Andras Simon)
2315 * bug fix: >= and <= gave wrong results when used with NaNs. (Some NaN
2316 bugs remain on x86-64.)
2317 * bug fix: the #= and ## reader macros now interact reasonably with
2318 funcallable instances.
2319 * bug fix: type-checks for function arguments were compiled using the
2320 compiler policy settings of the wrong lexical environment (in 1.0.2
2322 * bug fix: SHADOW accepts characters as string designators, as required
2323 by the spec (thanks to Eric Marsden)
2324 * bug fix: fixed GC safety issues when foreign functions are called with
2325 non-base strings as arguments
2326 * bug fix: more consistent error output for fatal-compiler-warnings, like
2328 * bug fix: functions with proper names were showing up as NIL in
2329 backtraces (reported by Edi Weitz, regression in 1.0.2)
2331 changes in sbcl-1.0.3 relative to sbcl-1.0.2:
2332 * new platform: NetBSD/PPC. (thanks to Aymeric Vincent)
2333 * optimization: calls of the form (AREF FOO (+ INDEX <constant>)) now
2334 produce more efficient code on the x86 if the compiler can determine
2335 that (+ INDEX <constant>) does not require a bounds check and FOO
2336 has an element type at least 8 bits wide.
2337 * bug fix: references to undefined variables are handled the same way
2338 in toplevel forms as in the normal compiler
2339 * bug fix: the build scripts again work with non-bash /bin/sh (thanks
2341 * bug fix: use "gtar" as the asdf-install *TAR-PROGRAM* on NetBSD
2342 (thanks to Jon Buller)
2343 * improvement: faster compilation times for complex functions
2344 * improvement: added readlink support to SB-POSIX (thanks to Richard
2347 changes in sbcl-1.0.2 relative to sbcl-1.0.1:
2348 * improvement: experimental support for mach exception handling on
2349 x86/macos. requires building with :MACH-EXCEPTION-HANDLER feature
2351 * improvement: support for GBK external format.
2352 (thanks to Chun Tian (binghe))
2353 * improvement: the debugger now displays variables that have been closed
2354 over, in code compiled with (DEBUG 2) or higher
2355 * improvement: support for executable cores on NetBSD (thanks to
2357 * new feature: added a RESTART-FRAME debugger command
2358 * new feature: new generic function SB-GRAY:STREAM-FILE-POSITION can
2359 be used to provide an implementation for FILE-POSITION on Gray streams
2360 (thanks to Eric Marsden)
2361 * new feature: add syslog, openlog and closelog support to SB-POSIX
2362 (thanks to Richard Kreuter)
2363 * optimization: the function call overhead in code compiled with
2364 a high DEBUG optimization setting is significantly
2365 * bug fix: an error is signaled for attempts to use READ-SEQUENCE
2366 for a (SIGNED-BYTE 8) stream and (UNSIGNED-BYTE 8) vector, or vice versa.
2367 (thanks to Tony Martinez)
2368 * bug fix: the initforms for DEFMETHOD &AUX parameters are only
2369 evaluated once (reported by Kevin Reid)
2370 * bug fix: the :SHOW-PROGRESS keyword parameter to SB-SPROF:WITH-PROFILING
2371 works again (thanks to Kilian Sprotte)
2372 * bug fix: an error is signaled for tagbodies with duplicate tags
2373 (thanks to Stephen Wilson)
2374 * bug fix: NIL can be used as a tagbody tag (thanks to Stephen Wilson)
2375 * bug fix: Win32 port can now handle foreign code unwinding Lisp
2376 stack frames from alien callbacks.
2377 * bug fix: ATANH returned incorrect results on win32 (thanks to Pierre Mai)
2378 * bug fix: SBCL works on Linux/ppc systems with a kernel configured to use
2379 65k pages (thanks to David Woodhouse)
2380 * bug fix: fix SB-POSIX dirent and socket on NetBSD (thanks to Richard Kreuter)
2382 changes in sbcl-1.0.1 relative to sbcl-1.0:
2383 * new platform: FreeBSD/x86-64, including support for threading.
2384 * new feature: the compiler stores cross-referencing information
2385 about function calls (who-calls), macroexpansion (who-macroexpands)
2386 and special variables (who-binds, who-sets, who-references) for code
2387 compiled with (< SPACE 3). This information is available through the
2388 sb-introspect contrib.
2389 * new feature: users may subclass SEQUENCE, and have instances of
2390 these classes interoperate with standard Common Lisp functions if
2391 a number of methods are defined. (This feature is experimental
2392 and the interface subject to change based on feedback from SBCL
2393 users and the general community)
2394 * improvement: sb-sprof traces call stacks to an arbitrary depth on
2395 x86/x86-64, rather than the previous fixed depth of 8
2396 * improvement: another pthread back-end of mutex "pthread-futex".
2397 * bug fix: non-ascii command-line arguments are processed correctly
2398 (thanks to Yaroslav Kavenchuk)
2399 * bug fix: non-required arguments were not passed correctly when a method
2400 defined using DEFMETHOD was called from a mop-generated method using
2401 CALL-NEXT-METHOD (reported by Pascal Costanza)
2402 * bug fix: recursion is now permitted in accessors through
2403 SLOT-UNBOUND. (reported by Pascal Costanza)
2404 * bug fix: an error was signaled at startup if the HOME environment
2405 variable was defined, but had an empty value (reported by Peter Van Eynde)
2406 * bug fix: non ordinary lambda-list keyword in ordinary lambda lists
2407 signal a PROGRAM-ERROR, not a BUG.
2408 * bug fix: SB-POSIX:READDIR works when built with large file support.
2409 * bug fix: ENOUGH-NAMESTRING works relative to #p"/" as well. (thanks
2411 * enhancement: DESTRUCTURING-BIND lambda-list uses &BODY instead of &REST
2412 for better automatic indentation support. (thanks to Matt Pillsbury)
2413 * optimization: loading generic functions no longer takes O(n^2) time,
2414 proportional to the amount of methods in the generic function
2415 (reported by Todd Sabin and Jeremy Brown)
2416 * optimization: the FIND and POSITION family of sequence functions
2417 are significantly faster on arrays whose element types have been
2419 * improvements to the Windows port:
2420 ** Intermittent heap corruption problems have been fixed. (thanks
2421 to Alastair Bridgewater)
2422 ** TRACE :ENCAPSULATE NIL (and function end breakpoints)
2424 ** Lisp is able to unwind foreign exception frames from alien
2425 callbacks. (thanks to Alastair Bridgewater)
2427 changes in sbcl-1.0 relative to sbcl-0.9.18:
2428 * improvement: experimental support for threading on FreeBSD/x86.
2429 (thanks to NIIMI Satoshi)
2430 * improvement: runtime option --dynamic-space-size can be used
2431 to set the size of the dynamic space reserved on startup.
2432 * improvement: floating point modes in effect are now saved in
2433 core, and restored on startup.
2434 * improvement: GET-INTERNAL-REAL-TIME now reports the time since
2435 startup, not time since first call to GET-INTERNAL-REAL-TIME.
2436 * improvement: SAVE-LISP-AND-DIE explicitly checks that multiple
2437 threads are not running after *SAVE-HOOKS* have run.
2438 * improvement: writes to CLOS instance slots are type-checked in code
2439 compiled with (SAFETY 3)
2440 * improvement: floating-point exception handling on FreeBSD (thanks to
2442 * improvement: SB-POSIX supports time(2), utime(2) and utimes(2)
2443 (thanks to Zach Beane)
2444 * improvement: support for files larger than 2GB for CL streams and SB-POSIX
2446 * improvement: added support for the Shift-JIS external format.
2447 (contributed by NIIMI Satoshi)
2448 * improvement: callbacks are supported on Linux/PPC. (thanks to
2450 * bug fix: compiler bug triggered by a (non-standard) VALUES
2451 declaration in a LET* was fixed. (reported by Kaersten Poeck)
2452 * bug fix: file compiler no longer confuses validated and already
2453 dumped structurres. (reported by Kaersten Poeck)
2454 * bug fix: ADJUST-ARRAY :FILL-POINTER T on an array without a
2455 fill-pointer signals a type-error as required. (thanks to
2457 * bug fix: disassemly of funcallable instances works.
2458 * bug fix: single stepping on PPC.
2459 * bug fix: fix thread-safety problems in the type system (generally
2460 manifesting as nonsensical errors like "STRING is a bad type specifier
2461 for sequences" or "The value 1 is not of type FIXNUM")
2462 * bug fix: version components are handled correctly in TRANSLATE-PATHNAME
2463 (reported by Josip Gracin)
2464 * bug fix: an error is signaled for attempts to displace arrays with
2465 incompatible element types (thanks to Mario Mommer)
2466 * bug fix: more correct handling of wide characters in debug info
2467 (bug reported by Attila Lendvai and fixed by Juho Snellman)
2468 * optimization: method calls with &OPTIONAL or &KEY arguments are faster
2469 and don't cause extra consing
2470 * optimization: MAP and MAP-INTO are significantly faster on vectors
2471 whose elements types have been declared.
2472 * Improvements to SB-SPROF:
2473 ** Support for allocation profiling
2474 ** Reduced profiling overhead, especially for long profiling runs
2475 * Improvements to the Windows port:
2476 ** floating point exceptions are now reported correctly.
2477 ** stack exhaustion detection works partially.
2478 ** more accurate GET-INTERNAL-REAL-TIME.
2479 ** better RUN-PROGRAM behaviour in case of errors in the child
2481 ** PROBE-FILE now simplifies pathnames correctly.
2482 ** DIRECTORY now works correctly with :WILD-INFERIORS.
2483 ** DECODE-UNIVERSAL-TIME works on times before 00:00:00 January
2484 1st 1970 (although time timezone data will be unreliable).
2485 ** Hyperbolic functions TANH, ASINH, ACOSH, and ATANH work.
2487 changes in sbcl-0.9.18 (1.0.beta?) relative to sbcl-0.9.17:
2488 * enhancement: SB-POSIX now supports cfsetispeed(3), cfsetospeed(3),
2489 cfgetispeed(3), cfgetospeed(3), and related constants. (thanks to
2491 * bug fix: two potential GC deadlocks affecting threaded builds.
2492 * bug fix: (TYPEP #\A '(NOT (MEMBER #\" #\{ #\:))) now correctly
2493 returns T (reported by Anton Kazennikov)
2494 * bug fix: the STORE-VALUE restart of CHECK-TYPE works correctly
2495 with non-variable places
2496 * bug fix: remove a race condition in the setting of
2497 funcallable-instance functions, this should make threaded CLOS
2498 code more stable against memory faults.
2499 * bug fix: corruption of specials when unbinding is interrupted by an
2500 asynchronous unwind (reported by Hannu Koivisto)
2501 * improvement: the debugger will now also display local variables that
2502 are only used once, for code compiled with a DEBUG optimization quality
2505 changes in sbcl-0.9.17 (0.9.99?) relative to sbcl-0.9.16:
2506 * feature: weak hash tables, see MAKE-HASH-TABLE documentation
2507 * incompatible change: External-format support for FFI calls. The
2508 SB-ALIEN:C-STRING no longer implies an ASCII
2509 external-format. Instead the string is subject to external-format
2510 conversion. Additionally return values of type SB-ALIEN:C-STRING
2511 are by default of type (SIMPLE-ARRAY CHARACTER), not
2512 SIMPLE-BASE-STRING. For an alien type that behaves like the old
2513 SB-ALIEN:C-STRING type, use (SB-ALIEN:C-STRING :EXTERNAL-FORMAT
2514 :ASCII :ELEMENT-TYPE BASE-CHAR). (thanks to Yaroslav Kavenchuk)
2515 * incompatible change: SB-EXT package no longer contains the
2516 following unused symbols: *GC-NOTIFY-AFTER*, *GC-NOTIFY-BEFORE*,
2517 *GC-NOTIFY-STREAM*, *ERROR-PRINT-LENGTH*, *ERROR-PRINT-LEVEL*,
2519 * incompatible change: the single-stepper is no longer available
2520 on Alpha, Mips and Sparc platforms.
2521 * minor incompatible change: the direct superclasses of
2522 SB-MOP:FUNCALLABLE-STANDARD-OBJECT are (FUNCTION STANDARD-OBJECT),
2523 not (STANDARD-OBJECT FUNCTION). This makes the
2524 class-precedence-lists of GENERIC-FUNCTION and
2525 STANDARD-GENERIC-FUNCTION comply with the requirement of ANSI
2527 * minor incompatible change: the default stream external format on
2528 non-unicode SBCL is no longer detected from the locale, but is always
2530 * new feature: Add a version of evaluator that uses an interpreter instead
2531 of the compiler. EVAL still uses the compiler by default, to switch it
2532 to use the interpreter, set the value of the variable
2533 SB-EXT:*EVALUATOR-MODE* to :INTERPRET.
2534 * minor incompatible change: the single-stepper REPL has been merged
2535 with the normal debugger (see the "Stepping" heading of the debugger help
2536 for more details). The debugger command STEP will no longer switch
2537 to the single-stepper REPL.
2538 * bug fix: ENOUGH-NAMESTRING on pathnames with no name and a pattern
2539 for a type now works.
2540 * bug fix: loading of default sysinit file works. (thanks to Leonid
2542 * bug fix: better detection of circularities in the file-compiler.
2543 (reported by Marco Monteiro)
2544 * bug fix: the CL pathname functions now work with files that have
2545 non-ASCII characters in their names (thanks to Yaroslav Kavenchuk)
2546 * bug fix: The :PTY argument for RUN-PROGRAM will now work on
2547 systems with Unix98 pty semantics.
2548 * bug fix: ASDF-INSTALL will now work with bsd tar.
2549 * bug fix: ASDF-INSTALL uses GNU tar on Solaris (thanks to Josip
2551 * bug fix: timers expiring in dead threads no longer cause a
2552 type-error (reported by Paul "Nonny Mouse").
2553 * bug fix: thanks to more lightweight single-stepper instrumentation,
2554 code compiled with (DEBUG 3) will compile and execute significantly faster,
2555 and will have more accurate type-inferencing than before
2556 * bug fix: SLOT-VALUE optimizations are no longer done on method parameters
2557 whose bindings are modified
2558 * improvements to the win32 port (thanks to Yaroslav Kavenchuk):
2559 ** bug fix: arguments to RUN-PROGRAM are escaped correctly
2560 ** replace dummy implementations of CL:MACHINE-INSTANCE and
2561 CL:SOFTWARE-VERSION with proper version
2563 changes in sbcl-0.9.16 relative to sbcl-0.9.15:
2564 * feature: implemented the READER-METHOD-CLASS and
2565 WRITER-METHOD-CLASS portion of the Class Initialization Protocol
2566 as specified by AMOP.
2567 * incompatible change: variable SB-EXT:*USE-IMPLEMENTATION-TYPES*
2569 * optimization: faster LOGCOUNT implementation on x86 and x86-64
2570 (thanks to Lutz Euler)
2571 * optimization: hashing of general arrays and vectors has been
2572 improved. (reported by Any Fingerhut)
2573 * enhancement: SB-INTROSPECT is now able to find definitions of
2574 profiled functions. (thanks to Troels Henriksen)
2575 * enhancement: compiler-macro expansion applies now to FUNCALL forms
2576 as well, allowing compiler-macros for SETF-functions to expand.
2577 * enhancement: step-instrumentation no longer wraps known
2578 single-value functions with multiple-value context, allowing
2579 better type inference.
2580 * fixed bug #337: use of MAKE-METHOD in method combination now works
2581 even in the presence of user-defined method classes. (reported by
2582 Bruno Haible and Pascal Costanza)
2583 * fixed bug #339(c): if there are applicable methods not part of any
2584 long-form method-combination group, call INVALID-METHOD-ERROR.
2585 (reported by Bruno Haible)
2586 * fixed bug #361: the :FUNCTION initarg in the protocol for
2587 initialization of methods can now be used to override
2588 internally-produced optimized functions. (reported by Bruno
2590 * bug fix: extensions of MAKE-METHOD-LAMBDA which wrap the
2591 system-provided lambda expression no longer cause warnings about
2592 unbound #:|pv-table| symbols.
2593 * bug fix: improved the handling of type declarations and the
2594 detection of violations for keyword arguments with non-constant
2596 * bug fix: potentially erronous calls to PATHNAME and
2597 MERGE-PATHNAMES were being flushed in some cases.
2598 (reported by Richard Kreuter)
2599 * bug fix: compiled calls to TYPEP were mishandling obsolete
2600 instances. (reported by James Bielman and Attila Lendvai)
2601 * bug fix: format strings with ~> without matching ~< no longer
2602 trigger an AVER, but signal an understandable error instead.
2603 (reported by Antonio Martinez)
2604 * bug fix: specifying an output-file without a pathname-type for
2605 COMPILE-FILE or COMPILE-FILE-PATHNAME resulted in using the type
2606 of input-file instead of "fasl". (reported by Robert Dodier)
2607 * bug fix: compiler-macro lambda-list parsing of FUNCALL forms.
2608 (reported by James Y Knight).
2609 * bug fix: compiler-macros-function did not consider the environment
2610 argument for shadowing by local functions.
2611 * bug fix: compiler-macros expansion was inhibited by local INLINE
2613 * bug fix: inline expansions of known functions were subject to
2614 step-instrumentation in high debug policies, leading to problems
2615 with type-inference.
2616 * bug fix: compiler failed to differentiate between different CONS
2617 types in some cases.
2618 * bug fix: fixed input, output and error redirection in RUN-PROGRAM
2619 for win32. (thanks to Mike Thomas and Yaroslav Kavenchuk)
2620 * bug fix: #368: incorrect use of expressed vs. upgraded array
2622 * bug fix: #306a: more precise unions of array types.
2623 * thread-safety improvements:
2624 ** CONDITION-WAIT could return early on Linux, if the thread was
2625 interrupted and subsequently continued with SIGCONT.
2626 ** STABLE-SORT and ADJUST-ARRAY were not reentrant.
2628 changes in sbcl-0.9.15 relative to sbcl-0.9.14:
2629 * added support for the ucs-2 external format. (contributed by Ivan
2631 * minor incompatible change: pretty printing of objects of type
2632 (cons symbol) is, in the default pprint-dispatch-table, now
2633 sensitive to whether the symbol satisfies FBOUNDP. (thanks to
2635 * minor incompatible change: SB-MOP:FINALIZE-INHERITANCE is now
2636 called later in a class's lifetime, possibly as late as when the
2637 first instance of the class is created. Previously,
2638 SB-MOP:FINALIZE-INHERITANCE was called by the system as soon as a
2639 class became finalizeable.
2640 * fixed bug: FILE-POSITION sometimes returned inconsistent results
2641 for multibyte external-format streams. (thanks to "vbzoli")
2642 * fixed bug: CHANGE-CLASS would fail to preserve the values of slots
2643 with :ALLOCATION :CLASS inherited from superclasses of the
2645 * fixed bug: anonymous classes can now be created using the :NAME
2646 initarg and MAKE-INSTANCE / REINITIALIZE-INSTANCE, as specified by
2647 AMOP. (reported by Leonid Slobodov on comp.lang.lisp)
2648 * fixed bug: core-files saved with :EXECUTABLE T can again be
2649 executed when SBCL_HOME isn't set. (reported by James Knight)
2650 * fixed bug: toplevel LOCALLY forms with declarations could
2651 occasionally get miscompiled. (reported by Yaroslav Kavenchuk)
2652 * fixed bug: printing from several different threads using different
2653 values of *print-case* could cause invalid output, due to
2654 some internal special variables of the printer not being bound
2655 thread-locally (reported by Max Mikhanosha)
2656 * fixed bug: SPECIALIZER metaobjects (including anonymous classes
2657 and EQL-SPECIALIZERs) can be used as specializers to DEFMETHOD.
2658 (reported by Pascal Costanza)
2659 * fixed bug: FINALIZE-INHERITANCE is called from
2660 REINITIALIZE-INSTANCE on classes when the class has previously
2661 been finalized, as required by AMOP.
2662 * minor code generation optimizations:
2663 ** better register allocation in CLOS dispatching functions
2664 ** overflow detection when coercing signed bytes to fixnums on x86-64
2665 ** is now implemented with one IMUL instruction instead of three shifts
2666 ** more efficient bit-vector access on x86 and x86-64
2667 ** more efficient access to raw structure slots on x86 and x86-64
2668 * fixed some bugs revealed by Paul Dietz' test suite:
2669 ** ENSURE-DIRECTORIES-EXIST.8: ENSURE-DIRECTORIES-EXIST must
2670 return its argument.
2672 changes in sbcl-0.9.14 relative to sbcl-0.9.13:
2673 * feature: thread support on Solaris/x86, and experimental thread support
2675 * feature: SBCL now tries to signal a STORAGE-CONDITION when running out
2677 * feature: SBCL now provides USE-VALUE and STORE-VALUE restarts in the
2678 default method for SLOT-UNBOUND.
2679 * minor incompatible change: prevent the user from specializing the
2680 new-value argument to SB-MOP:SLOT-VALUE-USING-CLASS. It's
2681 somewhat counter to the intent of the protocol, I (CSR) think, and
2682 additionally it just doesn't work in SBCL as currently
2683 implemented, thanks to optimizations (that are always valid for
2684 the other three SLOT-VALUEish functions, but not for the setter).
2685 * minor incompatible change: the :SB-LDB feature is now enabled by
2686 default, and DISABLE-DEBUGGER and ENABLE-DEBUGGER also affect
2687 the low-level debugger.
2688 * enchancement: RUN-PROGRAM is now able to extract the file-descriptor
2689 from SYNONYM-STREAM and TWO-WAY-STREAM provided they can be decomposed
2690 down to an SB-SYS:FD-STREAM, allowing direct communication in
2691 more cases. Temporary files and pipes are still used as a fallback
2693 * thread-safety: DECODE-UNIVERSAL-TIME & GET-DECODED-TIME depended
2694 on the non-reentrant C functions localtime(3) and gmtime(3).
2695 * bug fix: global optimization policy was not visible in LOCALLY and
2697 * bug fix: class objects can be used as specializers in methods.
2698 (reported by Pascal Costanza)
2699 * bug fix: native unparsing of pathnames with :DIRECTORY NIL failed
2700 with a type error. (reported by blitz_ on #lisp)
2701 * bug fix: unparsing logical pathnames with :NAME :WILD :TYPE NIL
2702 failed with a type error. (reported by Pascal Bourguignon)
2703 * bug fix: merging pathnames against defaults with :DIRECTORY
2704 starting with '(:RELATIVE :BACK) should preserve the :BACK.
2705 (reported by James Y Knight)
2706 * bug fix: saving large (>2GB) cores on x86-64 now works
2707 * bug fix: a x86-64 backend bug when compiling (setf aref) with a
2708 constant index and a (simple-array (signed-byte 32)) array
2709 * bug fix: NAME-CHAR on an invalid symbol no longer signals an
2710 error (patch by Robert J. Macomber)
2711 * feature: TIME now displays the amount of run-time spent in GC
2712 * bug fix: The debugger now does a better job of respecting
2713 (PUSH '(*PRINT-CIRCLE* . T) SB-DEBUG:*DEBUG-PRINT-VARIABLE-ALIST*)
2714 when printing SB-DEBUG:*DEBUG-CONDITION*. (This is a debugger-only
2715 workaround for bug 403.)
2716 * bug fix: floating point exception handling now works on FreeBSD
2717 (thanks to NIIMI Satoshi)
2718 * fixed some bugs revealed by Paul Dietz' test suite:
2719 ** MISC.641: LET-conversion were not supposed to work in late
2721 * improvements to the Win32/x86 port:
2722 ** GET-INTERNAL-RUN-TIME implemented, thanks to Frank Buss.
2723 ** improved SB-BSD-SOCKETS support, thanks to Timothy Ritchey.
2725 changes in sbcl-0.9.13 relative to sbcl-0.9.12:
2726 * new feature: source path information is generated for macro-expansion
2727 errors for use in IDE's like Slime (thanks to Helmut Eller)
2728 * bug fix: calls to the compiler no longer modify *RANDOM-STATE*
2729 * bug fix: compiler does not loop forever on an invalid type in
2731 * improvement: compilation of most CLOS applications is significantly
2733 * optimization: added a limited bytecode compiler for simple toplevel
2734 forms, speeding up compilation and FASL loading
2735 * bug fix: the statistical profiler now properly distinguishes anonymous
2738 changes in sbcl-0.9.12 relative to sbcl-0.9.11:
2739 * minor incompatible change: in sbcl-0.9.11 (but not earlier
2740 versions) SB-MOP:FINALIZE-INHERITANCE would recursively descend
2741 into subclasses of the finalized class. Now user calls to
2742 FINALIZE-INHERITANCE finalize just the one class, and calls by the
2743 system return before any subclasses are finalized.
2744 * minor incompatible change: The reader no longer ignores errors
2745 regarding non-existent packages in #+ and #- feature tests.
2746 * new feature: command line options --no-sysinit, --no-userinit to
2747 inhibit loading the corresponding init files
2748 * new feature: add a generic function SOCKET-SEND to SB-BSD-SOCKETS,
2749 for sending data through UDP sockets (thanks to François-René Rideau)
2750 * minor incompatible change: SIGPIPE is ignored and "Broken pipe"
2751 error is signalled instead (thanks to François-René Rideau)
2752 * minor incompatible change: Error signalling behaviour of lexical
2753 operations violating package locks has changed slightly. Refer to
2754 documentation on package locks for details.
2755 * enhancement: EVAL can process IF-expressions without resorting to the
2757 * bug fix: Some operations involving SIN, COS, or TAN weren't being
2758 constant-folded properly due to missing out-of-line functions.
2759 (reported by Mika Pihlajamäki)
2760 * bug fix: LISTEN sometimes returned T even in cases where no data was
2761 immediately available from the stream
2762 * fixed bug: types of the last two arguments to SET-SYNTAX-FROM-CHAR
2763 were reversed. (reported by Levente Mészáros)
2764 * fixed bug: Tests for the (VECTOR T) type gave the wrong answer
2765 when given a vector displaced to an adjustable array. (reported
2767 * bug fix: derivation of float boundaries from numbers outside the
2768 appropriate float range (reported by John Wiseman)
2769 * bug fix: MAKE-LOAD-FORM-SAVING-SLOTS accepts en empty slot name
2771 * bug fix: precomputing cache entries for generic functions with
2772 some subclasses of specializers as yet invalid does not attempt to
2773 fill a cache line with a negative offset. (reported by Levente
2775 * improvements to DOCUMENTATION for TYPE and STRUCTURE doc-types:
2776 allow condition class objects as arguments to DOCUMENTATION and
2777 (SETF DOCUMENTATION); only find and set documentation for
2778 structure names for the STRUCTURE doc-type. (suggested by Gary
2780 * improvements to the Win32/x86 port:
2781 ** (user-homedir-pathname) and default initialization file
2782 locations now know about the user's "Documents and Settings"
2783 directory (thanks to Yaroslav Kavenchuk)
2784 ** run-program is implemented (thanks to Mike Thomas)
2785 ** sockets support (thanks to Timothy Ritchey)
2786 ** better backtrace support (thanks to Alastair Bridgewater)
2787 ** sb-grovel supported
2788 ** asdf-install and sb-posix work somewhat
2789 ** capable of running Slime using SWANK:*COMMUNICATION-STYLE* NIL
2790 * improvements to the Solaris/x86 port:
2791 ** works on Solaris 11/Solaris Express
2792 ** floating-point exception handling support
2793 ** support for the breakpoint-based TRACE :ENCAPSULATE NIL facility
2794 * fixed some bugs revealed by Paul Dietz' test suite:
2795 ** REMOVE-METHOD returns its generic function argument even when
2796 the method is not one of the generic functions' methods.
2797 ** objects declared as MEMBER types can be admissible arguments to
2798 structure accessors.
2799 ** printing characters should simply be printed by the FORMAT ~:C
2801 ** compiler failure when compiling functions with hairy constant
2802 defaults for optional parameters.
2803 ** compiler produces wrong code when MAYBE-INLINE-expanding a
2804 function, which is already optimized.
2806 changes in sbcl-0.9.11 relative to sbcl-0.9.10:
2807 * new platform: experimental support for SBCL x86/Darwin, including
2808 MacOS X 10.4.5 on Intel.
2809 * new feature: Unicode character names are now known to the system
2810 (through CHAR-NAME and NAME-CHAR).
2811 * new feature: the filesystem location of SBCL's core file is
2812 exposed to lisp through the variable SB-EXT:*CORE-PATHNAME*.
2813 * minor incompatible change: the contrib modules SB-POSIX and
2814 SB-BSD-SOCKETS no longer depend on stub C libraries; the intent of
2815 this change is to make it easier to distribute
2816 location-independent binaries.
2817 * bug fix: as implied by AMOP, standardized classes no longer have
2818 slots named by external symbols of public packages. (reported by
2820 * optimization: calling functions via constant symbols -- as in
2821 (FUNCALL 'FOO) -- is now roughly as efficient as calling them
2822 via the function object as in (FUNCALL #'FOO).
2823 * optimization: on x86 and x86-64, the calling convention for the
2824 case of dealing with an unknown number of values has been altered
2825 to be friendlier to the prediction heuristics implemented,
2826 particularly with reference to CALL and RET pairing. (thanks to
2827 Alastair Bridgewater)
2828 * optimization: on x86, the code for access to thread-local symbol
2829 values and binding/unbinding of thread-local symbols is smaller.
2830 (thanks to Alastair Bridgewater)
2831 * enhancement: CONSTANTP is now able to determine constantness of
2832 more complex forms, including calls to constant-foldable standardized
2833 functions and some special forms beyond QUOTE.
2834 * fixed bug: occasional GC crashes on Solaris/x86
2835 * optimization: x86-64 supports stack allocation of results of simple
2836 calls of MAKE-ARRAY, bound to variables, declared DYNAMIC-EXTENT
2837 * enchancement: the PROCESS-INPUT and -OUTPUT streams created by
2838 SB-EXT:RUN-PROGRAM can be used for both character and byte IO
2839 (thanks to James Knight)
2840 * fixed bug: CL:LISTEN always returns NIL at end of file, as required
2841 by the standard (thanks to Stephen Compall)
2843 changes in sbcl-0.9.10 relative to sbcl-0.9.9:
2844 * new feature: new SAVE-LISP-AND-DIE keyword argument :EXECUTABLE can
2845 be used for bundling the runtime and the core file into one
2846 executable binary. This feature is not currently supported on all SBCL
2847 platforms. (thanks to James Bielman and NIIMI Satoshi)
2848 * new feature: a generational or ephemeral garbage collector is now
2849 the default on the PowerPC platform (both Linux and Darwin). The
2850 old Cheney (stop and copy) collector is a build-time option.
2851 (thanks to Cyrus Harmon, after Raymond Toy)
2852 * minor incompatible change: the method by which SBCL finds its
2853 contributed modules has changed; it no longer relies on symbolic
2854 links from an $SBCL_HOME/systems directory, but searches directly
2855 in the subdirectories of $SBCL_HOME.
2856 * enhancement: the dynamic heap size on the Linux/PPC platform is
2857 markedly larger, even using the older Cheney garbage collector.
2858 * fixed bug #399: full call to DATA-VECTOR-REF in accesses to
2859 certain complicated string types. (reported by Gary King)
2860 * fixed bug: STRING-TO-OCTETS and OCTETS-TO-STRING did not convert
2861 character codes. (thanks to Yaroslav Kavenchuk and Ivan Boldyrev)
2862 * fixed bug: DOCUMENTATION on structures no longer signals an
2863 error if no structure type of the right name exists. (reported by
2865 * fixed bug: compiled calls to MAKE-INSTANCE where there is an
2866 applicable non-standard primary or :AROUND method on
2867 INITIALIZE-INSTANCE or SHARED-INITIALIZE and a non-keyword initarg
2868 no longer cause unbound variable errors. (reported by Kevin Reid)
2869 * fixed bug: metacircle resolution in cases where methods have slots
2870 added before the slots from STANDARD-METHOD. (reported by Jean
2872 * fixed bug: the Power PC assembly code for calling into lisp
2873 sometimes computed its return address wrongly (depending on the
2874 15th bit of the address, fixed at link time). This used to
2875 manifest itself in a segmentation violation while building PCL.
2876 (reported by Kevin Rosenberg, Eric Marsden, Lars Brinkhoff and
2877 many others over the years)
2878 * fixed bug: ROOM no longer reports silly numbers for stack usage if
2879 the stack pointer (treated as a signed integer) is negative.
2880 (thanks to Peter van Eynde)
2882 changes in sbcl-0.9.9 relative to sbcl-0.9.8:
2883 * new platform: experimental support for the Windows operating
2884 system has been added. (thanks to Alastair Bridgewater)
2885 * fixed several bugs in and robustified the PPC FFI (including
2886 callbacks). (thanks to Cyrus Harmon and Heiner Schwarte)
2887 * bug fix: allow non-simple string symbol names (reported by Paul
2889 * bug fix: interrupt handling on NetBSD (thanks to Richard M
2891 * bug fix: saving a core corrupted callbacks on x86/x86-64
2892 * bug fix: closed a loophole in metacircularity detection and
2893 grounding in the PCL implementation of CLOS.
2894 * bug fix: TRUENAME on "/" no longer returns a relative pathname.
2895 (reported by tomppa on #lisp)
2896 * bug fix: clear the direction flag on Lisp -> C transitions, as
2897 required by the x86-64 ABI. Fixes mysterious GC crashes on SuSE.
2898 (reported by Andrej Grozin and Hendrik Maryns)
2899 * optimization: major improvements to GC efficiency on GENCGC platforms
2900 * optimization: faster implementation of EQUAL
2901 * optimization: emit more efficient opcodes for some common
2902 immediate->register MOV instructions on x86-64. (thanks to Lutz Euler)
2903 * optimization: several other minor code-generation improvements on x86-64
2904 * fixed segfaults on x86 FreeBSD 7-current. (thanks to NIIMI Satoshi)
2906 changes in sbcl-0.9.8 relative to sbcl-0.9.7:
2907 * minor incompatible change: (SETF CLASS-NAME) and (SETF
2908 GENERIC-FUNCTION-NAME) are generic functions once more (reverting
2909 the change in the 0.9.7 release). (SETF CLASS-NAME) is specified
2910 by ANSI as a generic function, and for consistency (SETF
2911 GENERIC-FUNCTION-NAME) is treated likewise.
2912 * fixed bug #233.b: make constraint propagation notice when a variable
2913 value is changed after it is referenced but before it is used
2914 * fixed bug #296: no more arbitrary behaviour from filenames with
2915 odd characters as --load arguments. (reported by Adam Warner)
2916 * fixed bug #390: :CHARACTER-SET pathname components now work as
2917 expected. (reported by Tim Daly Jr)
2918 * fixed bug #391: complicated :TYPE intersections in slot
2919 definitions no longer cause an error in PCL internals.
2920 * fixed bug #392: plugged a hole in the obsolete-instance protocol.
2921 * bug fix: FILE-STRING-LENGTH is now external-format sensitive,
2922 returning the number of octets which would be written to the
2923 file-stream. (thanks to Robert J. Macomber)
2924 * bug fix: the SB-SIMPLE-STREAMS contrib passes external-format
2925 arguments to the internal stream functions. (thanks to David
2927 * bug fix: stack exhaustion is now handled on the x86/SunOS
2928 platform. (thanks to Daisuke Homma)
2929 * bug fix: more accurate ROOM results on GENCGC platforms
2930 * optimization: improved type inference for arithmetic-for
2931 index variables in LOOP
2932 * optimization: faster floating-point SQRT on x86-64
2933 * fixed some bugs revealed by Paul Dietz' test suite:
2934 ** DOCUMENTATION returns NIL instead of "" for method combinations
2935 that don't have a docstring
2937 changes in sbcl-0.9.7 relative to sbcl-0.9.6:
2938 * minor incompatible change: (SETF CLASS-NAME) and (SETF
2939 GENERIC-FUNCTION-NAME) are no longer generic functions, and
2940 therefore are not customizeable by user code (as seems to be at
2941 least permitted and maybe required by AMOP). As a consolation,
2942 however, the SBCL implementation of these functions now calls
2943 REINITIALIZE-INSTANCE as specified by AMOP.
2944 * bug fix: slot-definition documentation is propagated as per ANSI
2945 7.6.2 to EFFECTIVE-SLOT-DEFINITIONS.
2946 COMPUTE-EFFECTIVE-SLOT-DEFINITION now receives a :DOCUMENTATION
2947 argument, as do eslotd initialization methods. (from Pascal
2948 Costanza's "Closer" project)
2949 * bug fix: REINITIALIZE-INSTANCE on generic functions calls
2950 COMPUTE-DISCRIMINATING-FUNCTION (almost) unconditionally, as
2952 * bug fix: it is now possible to have more than one subclass of
2953 STANDARD-GENERIC-FUNCTION without causing stack overflow.
2954 (reported by Bruno Haible, Pascal Costanza and others)
2955 * bug fix: the dependent update protocol now works for generic
2956 functions. (thanks to Gerd Moellmann; reported by Bruno Haible
2957 and Pascal Costanza)
2958 * bug fix: condition-class instances corresponding to
2959 DEFINE-CONDITION forms are now created eagerly. (reported by
2960 Kalle Olavi Niemitalo on comp.lang.lisp)
2961 * bug fix: floating point printing is more accurate in some
2962 circumstances. (thanks to Simon Alexander)
2963 * bug fix: *COMPILE-FILE-PATHNAME* now contains the user's pathname
2964 merged with *DEFAULT-PATHNAME-DEFAULTS*.
2965 * bug fix: callbacks on OS X now preserve stack-alignment.
2966 (thanks to Cyrus Harmon)
2967 * enhancement: the x86-64 disassembler is much better at
2968 disassembling SSE instructions. (thanks to Lutz Euler)
2969 * enhancement: CHECK-TYPE on a variable now allows type-inference
2970 (thanks to Vincent Arkesteijn)
2971 * optimization: improved performance of EUC-JP external format.
2972 (thanks to NIIMI Satoshi)
2973 * optimization: performance improvements to IO on file streams of
2974 :ELEMENT-TYPE CHARACTER
2975 * optimization: much faster memory allocation on x86-64
2976 * optimization: faster garbage collections (latency and throughput)
2978 * optimization: faster bignum subtraction and division on x86 and x86-64
2979 (thanks to Lutz Euler)
2980 * optimization: more accurate type-inference for loops that use a
2981 floating point index variable or a negative step.
2983 changes in sbcl-0.9.6 relative to sbcl-0.9.5:
2984 * bug fix: add a workaround to SBCL looping infinitely at startup on
2985 Linux kernels with apparently buggy implementations of personality().
2986 (thanks to Svein Ove Aas)
2987 * bug fix: Unicode symbols are correctly printed in LDB backtraces
2988 (thanks to David Lichteblau)
2989 * bug fix: local bindings shadow global symbol macros for
2990 macroexpansion. (reported by Matthew D Swank on comp.lang.lisp)
2991 * optimization: non-open coded uses of numeric comparison operators
2992 (e.g. >) no longer cons when called with more than one parameter
2993 on platforms supporting dynamic-extent allocation.
2994 * enhancement: saving cores with foreign code loaded is now supported
2995 on MIPS/Linux in addition to the previously supported platforms.
2996 * bug fix: FIND-RESTART now tests for activity, not applicability when given
2997 a restart object as identifier. (reported by Helmut Eller for CMUCL)
2998 * bug fix: division by zero in sb-sprof when no samples were collected
2999 * bug fix: a race when a slow to arrive sigprof signal killed sbcl
3000 * bug fix: asdf-install uses CRLF as required by the HTTP spec.
3001 (thanks to Alexander Kjeldaas)
3002 * new feature: ignoring the return values of destructive functions
3003 like NREVERSE signals a compile-time style-warning.
3004 (thanks to Kevin Reid)
3005 * new feature: the alignment of alien structure fields can be
3006 explicitly specified. (thanks to Cyrus Harmon)
3007 * bug fix: run cleanup forms (in all threads) when receiving a SIGTERM
3008 and dump core on SIGQUIT
3010 ** incompatible change: threads do not inherit values of specials
3011 from their parents (see manual)
3012 ** bug fix: threads stacks belonging to dead threads are freed by the
3013 next exiting thread, no need to gc to collect thread stacks anymore
3014 ** minor incompatible change: INTERRUPT-THREAD-ERROR-ERRNO removed
3015 ** WITH-RECURSIVE-LOCK can be nested in a WITH-MUTEX for the same lock
3016 ** bug fix: dynamic variable and thread start related gc lossage
3017 ** bug fix: job control (SIGSTOP/SIGCONT) no longer confuses threads
3019 * fixed some bugs revealed by Paul Dietz' test suite:
3020 ** SUBTYPEP is slightly more accurate on heinously complicated
3021 CONS types where some of the members have uncertain (in the
3022 NIL, NIL sense) type relationships to each other.
3024 ** Cores produced by SAVE-LISP-AND-DIE on GENCGC platforms are
3025 no longer purified unless :PURIFY T is explicitly specified.
3026 ** Non-purified cores are significantly smaller than before
3028 changes in sbcl-0.9.5 relative to sbcl-0.9.4:
3029 * new feature: timers based on Zach Beane's excellent timer package
3030 * added support for the following external formats: koi8-u,
3031 x-mac-cyrillic, cp437, cp850, cp852, cp855, cp857, cp860, cp861,
3032 cp862, cp863, cp864, cp865, cp866, cp869, cp874, iso-8859-2,
3033 iso-8859-3, iso-8859-4, iso-8859-5, iso-8859-6, iso-8859-7,
3034 iso-8859-8, iso-8859-9, iso-8859-10, iso-8859-11, iso-8859-13,
3035 iso-8859-14, cp1250, cp1251, cp1252, cp1253, cp1254,
3036 cp1255,cp1256, cp1257, cp1258 (contributed by Ivan Boldyrev)
3037 * incompatible change: a threaded SBCL will no longer revert to
3038 non-threaded mode on non-NPTL systems, but refuse to start entirely.
3039 * bug fix: interrupts are disabled until startup is complete; no
3040 more sigsegvs when receiving a signal to soon
3041 * optimization: faster 32-bit SB-ROTATE-BYTE:ROTATE-BYTE on non-x86/ppc
3043 * bug fix: add a workaround for the memory randomization features in
3044 Linux kernels >= 2.6.12 that interfere with SBCL's memory maps. This
3045 workaround will only be in effect on systems with the proc filesystem
3047 * bug fix: printing objects of type HASH-TABLE signals a
3048 PRINT-NOT-READABLE error when *READ-EVAL* is NIL. (reported by
3050 * bug fix: GET-INTERNAL-REAL-TIME now works even for processes that
3051 have been running for over 50 days. (reported by Gilbert Baumann)
3052 * bug fix: the logic for getting names of functions gets less
3053 confused when confronded with alternate-metaclass
3054 funcallable-instances. (reported by Cyrus Harmon)
3055 * bug fix: FUNCTIONP and (LAMBDA (X) (TYPEP X 'FUNCTION)) are now
3056 consistent, even on internal alternate-metaclass objects.
3057 * bug fix: flush closure information collected by physical
3058 environment analysis prepass before the main pass. (bug reported
3060 * bug fix: compiler pack phase does not modify a hashtable, which is
3061 iterated. (reported by Bryan O'Connor, fixed by Rob MacLachlan)
3062 * bug fix: backquote does not optimize (LIST* x y) to CONS when x
3063 may be expanded. (reported by Alexander <malishev> on c.l.l)
3064 * bug fix: no more style-warnings when compiling code using LAST
3065 under high-SPEED low-SPACE settings. (reported by David Wallin
3067 * fixed some incompatibilities between SBCL's MOP and the MOP
3069 ** the METAOBJECT class is now implemented;
3070 ** FUNCALLABLE-STANDARD-OBJECT is now a subclass of
3071 STANDARD-OBJECT, as required;
3072 ** the classes STANDARD-CLASS and FUNCALLABLE-STANDARD-CLASS are
3073 now compatible (as required by VALIDATE-SUPERCLASS); there
3074 remains a consistency requirement over the presence or absence
3075 of the FUNCTION class in the superclass list of finalized
3076 classes; see the manual for more details;
3077 ** the :AROUND method for COMPUTE-SLOTS on
3078 FUNCALLABLE-STANDARD-CLASS now honours the primary method's
3079 requested slot ordering.
3081 ** bug fix: parent thread now can be gc'ed even with a live
3083 ** bug fix: binding a special with PROGV to no value is not
3084 the same as that symbol not having been bound (thanks to
3086 ** bug fix: binding specials is thread safe (thanks to
3088 ** bug fix: interrupt handlers are now per-process, RUN-PROGRAM
3089 and SB-SPROF do not die with 'no handler for signal XX in
3090 interrupt_handle_now(..)' anymore
3091 ** bug fix: WITH-TIMEOUT works with multiple running threads
3092 * fixed some bugs revealed by Paul Dietz' test suite:
3093 ** ENSURE-GENERIC-FUNCTION should take a method class object for
3094 the :method-class keyword argument.
3096 changes in sbcl-0.9.4 relative to sbcl-0.9.3:
3097 * new port: the Solaris operating system on x86 processors is now
3098 mostly supported, though some rough edges in the environment
3099 remain. (thanks to Daisuke Homma)
3100 * enhancement: SBCL on MIPS platforms now has a much larger dynamic
3101 space for its heap. (thanks to Thiemo Seufer)
3102 * optimization: SBCL on MIPS platforms now supports dynamic-extent
3103 closures. (thanks to Thiemo Seufer)
3104 * minor incompatible change: eof selects abort in the debugger.
3105 * minor incompatible change: *INVOKE-DEBUGGER-HOOK* is run before
3106 *DEBUGGER-HOOK* => *DEBUGGER-HOOK* is not run when the debugger
3108 * minor incompatible change: SB-KERNEL:INSTANCE-LAMBDA is
3109 deprecated, and will go away in a future revision of SBCL.
3110 * minor incompatible change: GC-ON and GC-OFF are no longer
3111 implemented with a counter, it does not matter how many times gc
3112 is switched on or off
3113 * bug fix: discriminating functions for generic function classes
3114 with non-standard methods for COMPUTE-APPLICABLE-METHODS no longer
3115 make invalid assumptions about method precedence order. (reported
3117 * bug fix: TRUNCATE now correctly signals division by zero on MIPS
3118 platforms. (thanks to Thiemo Seufer)
3119 * bug fix: degree sign (<U00B0>) could not be encoded in KOI8-R.
3120 * bug fix: correct pathname printing with printer escaping is on.
3121 (thanks to Kevin Reid)
3122 * bug fix: complex VOP definitions in "user-space" no longer trigger
3123 package locks. (reported by Zach Beane)
3124 * fixed bug 343: SB-KERNEL:INSTANCE-LAMBDA is no longer necessary
3125 for funcallable-instance functions, and is no different from
3127 * bug fix: PARSE-INTEGER no longer depends on the whitespaceness of
3128 characters in the current readtable. (reported by Nicholas Neuss)
3129 * bug fix: SUBTYPEP on various CONS types returns more a more
3130 accurate acknowledgment of its certainty.
3131 * optimizations: REMOVE-DUPLICATES now runs in linear time on
3132 lists in some cases. This partially fixes bug 384.
3133 * flush all standard streams before prompting in the REPL and the
3135 * bug fix: signal handling and triggering gc do not conflict
3136 directly anymore, in particular a high frequency sb-sprof does
3137 not prevent gc from running
3138 * bug fix: DECODE-UNIVERSAL-TIME now uses a more reasonable
3139 approximation for timezone and DST information between the
3140 universal time epoch and the smallest negative 32-bit time_t.
3141 * bug fix: ENCODE-UNIVERSAL-TIME no longer errors when passed the
3142 year 1899 so long as the encoded time is non-negative.
3143 * bug fix: on the x86 platform, SB-ROTATE-BYTE:ROTATE-BYTE returns
3144 the correct answer for non-constant rotate amounts when performing
3145 an inline 32-bit rotation.
3147 ** bug fix: RELEASE-FOREGROUND doesn't choke on session lock if
3148 there is only one thread in the session
3149 ** bug fix: memory leak for streams created in one thread and
3150 written to in another
3151 ** bug fix: lockup when compiled with gcc4
3152 ** bug fix: race that allows the gc to be triggered when gc is
3154 ** bug fix: one less memory fault in INTERRUPT-THREAD, again
3155 ** bug fix: gc and INTERRUPT-THREAD don't hang when the RT signal
3157 ** bug fix: finished threads are gc'ed properly
3158 * fixed some bugs revealed by Paul Dietz' test suite:
3159 ** CALL-NEXT-METHOD signals an error (in safe code) when the call
3160 has arguments with a different set of applicable methods from
3161 the orignal arguments.
3162 ** The type error thrown by MAP now has a correct expected-type
3164 ** DISASSEMBLE now throws a TYPE-ERROR when its argument does not
3165 name a compiled function.
3166 ** Three MISC tests where a large bignum was improperly coerced to
3167 a float that couldn't represent that bignum during type
3168 derivation were fixed.
3169 ** SUBTYPEP can now handle types involving the negation of a
3170 list-form FUNCTION type.
3171 ** SUBTYPEP also now handles certain COMPLEX type specifiers such
3172 as (COMPLEX (AND RATIO (NOT FIXNUM))).
3173 ** READ-BYTE and WRITE-BYTE no longer take stream designators.
3175 changes in sbcl-0.9.3 relative to sbcl-0.9.2:
3176 * New feature: Experimental support for bivalent streams: streams
3177 opened with :element-type :default now allow character and binary
3178 (unsigned-byte 8) I/O
3179 * Support for the koi8-r external format. (thanks to Ivan Boldyrev)
3180 * Bug fix: OPEN no longer fails when *PRINT-READABLY* is T. (thanks
3182 * bug fix: no more highly sporadic "couldn't check whether ~S is
3183 readable" when reading a stream and an interrupt hits in the middle
3184 of a select system call
3185 * compiler better recognizes complex arrays (reported by Eduardo
3187 * bug fix: out-of-line SB-SYS:FOREIGN-SYMBOL-ADDRESS did not work
3188 for variables on SBCL built with linkage-tables. (reported by Luis
3190 * various error reporting improvements.
3191 * optimizations: LOGNOR on fixnums is improved in the MIPS backend.
3192 (Thanks to Thiemo Seufer)
3193 * bug fix: nested reader invokations work correctly
3194 * bug fix: it is possible to have simultaneous references to foreign
3195 code and foreign data with the same name.
3197 ** added x86-64 support
3198 ** incompatible change: the threading api now works with thread
3199 objects instead of thread ids
3200 ** bug fix: threads are protected from signals and interruption when
3201 starting up or going down
3202 ** bug fix: a race where an exiting thread could lose its stack to gc
3203 ** bug fix: don't halt on infinite error in threads if possible
3204 ** fixed numerous gc deadlocks introduced in the pthread merge
3205 ** bug fix: fixed thread safety issues in read and print
3206 ** bug fix: debugger doesn't hang on session lock if interrupted at
3207 an inappropriate moment
3208 ** bug fix: run-program is now thread safe(r)
3209 ** bug fix: inner with-recursive-lock no longer releases the mutex
3210 * fixed a bug in (DECODE-UNIVERSAL-TIME 0) (reported by Paul Dietz)
3211 * fixed some bugs revealed by Paul Dietz' test suite:
3212 ** TYPE-ERRORs from signalled by COERCE now have DATUM and
3213 EXPECTED-TYPE slots filled.
3214 ** MULTIPLE-VALUE-SETQ always returns the primary value of the
3216 ** MAKE-CONDITION accepts classes as type-designators.
3217 ** COMPILE may never return NIL.
3218 ** ENCODE-UNIVERSAL-TIME now guards against times out of Unix's
3219 range before calling Unix time functions
3221 changes in sbcl-0.9.2 relative to sbcl-0.9.1:
3222 * numerous signal handling fixes to increase stability
3223 * Support for EUC-JP external format. (thanks to NIIMI Satoshi)
3224 * minor incompatible change: we now correctly canonize default
3225 initargs, making them be a list of (INITARG INITFORM INITFUNCTION)
3226 as per the MOP, rather than the historical (INITARG INITFUNCTION
3227 INITFORM). (reported by Bruno Haible)
3228 * new feature: WITH-COMPILATION-UNIT now accepts a non-standard
3229 :SOURCE-PLIST option. See (DOCUMENTATION #'WITH-COMPILATION-UNIT T)
3230 for more information.
3231 * TRUENAME and PROBE-FILE now correctly resolve symlinks even if the
3232 pathname is a directory pathname.
3233 * SB-SPROF now works (more) reliably on non-GENCGC platforms.
3234 * dynamic space size on PPC has been increased to 768Mb. (thanks to
3236 * SB-MOP:ENSURE-CLASS-USING-CLASS now accepts a class as the
3237 :METACLASS argument in addition to a class name. (reported by
3238 Bruno Haible for CMUCL, patch for CMUCL by Gerd Moellmann)
3239 * RESTART-CASE can now be wrapped around CALL-METHOD forms.
3240 (reported by Bruno Haible; patch from Gerd Moellmann)
3241 * bug fix: sbcl runtime can now be compiled with gcc4 (thanks to
3243 * bug fix: more cleanups to the floating point exception handling on
3244 x86-64 (thanks to James Knight)
3245 * bug fix: the compiler does not try to constant fold calls of
3246 COERCE and BIT-* functions when they return freshly constructed
3247 objects. (reported by Nikodemus Siivola and Paul Dietz)
3248 * optimization: improved the MIPS versions of generic (in the
3249 generic sense) arithmetic routines. (thanks to Thiemo Seufer)
3250 * optimization: direct conversion of (unsigned-byte 32) to floats on
3251 the PowerPC platform.
3252 * optimization: structure instances with raw slots now use less
3253 memory, and probably show better memory locality. (thanks to
3255 * optimization: DYNAMIC-EXTENT declarations for lists and closures
3256 are treated as requests for stack allocation on the x86-64,
3257 Alpha-32, PPC and SPARC platforms.
3258 * contrib improvement: it's harder to cause SOCKET-CLOSE to close()
3259 the wrong file descriptor; implementation of SOCKET-OPEN-P.
3260 (thanks to Tony Martinez)
3262 ** gcing a dead thread can no longer lead to lockups
3263 ** threads block signals until they are set up properly
3264 ** errno is no longer shared by threads
3265 ** interrupt-thread restores the eflags register on x86
3266 ** fixed some lockups due to gc/thread interaction
3267 * fixed some bugs revealed by Paul Dietz' test suite:
3268 ** invalid dotted lists no longer raise a read error when
3269 *READ-SUPPRESS* is T
3270 ** signal an error if a symbol that names a declaration is used
3271 as the name of a type, or vice versa
3272 ** allow using the (declare (typespec var*)) abbreviation for
3273 (declare (type typespec var*)) with all type specifiers
3274 ** circularity detection works properly with PPRINT-LOGICAL-BLOCK
3275 ** always return NIL from PPRINT-POP when OBJECT is NIL
3276 ** don't signal errors when pretty-printing malformed LABELS,
3277 FLET or MACROLET forms
3278 ** declarations in a DOLIST body are also in scope for the
3280 ** COMPILE-FILE accepts all pathname designators as INPUT-FILE
3282 ** the ELEMENT-TYPE keyword argument to WITH-OUTPUT-STREAM is
3285 changes in sbcl-0.9.1 relative to sbcl-0.9.0:
3286 * fixed cross-compiler leakages that prevented building a 32-bit
3287 target with a 64-bit host compiler.
3288 * fixed a bug in CLOSE :ABORT T: no longer attempts to remove files
3289 opened with :IF-EXISTS :OVERWRITE.
3290 * fixed bug 281: error for an invalid qualifier in a short-form method
3291 combination method is not signalled until the faulty method is called.
3292 * bug fix: iteration variable type inferrer failed to deal with open
3293 intervals. (reported by Alan Shields)
3294 * bug fix: dynamically loading (via LOAD-SHARED-OBJECT or similar)
3295 "frameworks" on Mac OS X no longer causes an EXC_BAD_ACCESS if two
3296 or more runtime options were provided to the sbcl binary.
3297 * compiled code is not steppable if COMPILATION-SPEED >= DEBUG.
3298 * contrib improvement: implement SB-POSIX:MKSTEMP (Yannick Gingras)
3299 * optimization: there's now a fast-path for fixnum arguments in the
3300 generic subtraction routines on x86/x86-64. (Thanks to Lutz Euler)
3301 * optimization: the code generated on x86-64 is more compact thanks
3302 to not outputting unneccessary prefix bytes. (Thanks to Lutz Euler)
3303 * bug fix: floating-point exception handling now partly works on
3304 x86-64. (Thanks to James Knight)
3305 * improvement to the MIPS backend from Thiemo Seufer: C-style
3306 64-bit long long arguments and return values to alien functions
3308 * fixed some bugs revealed by Paul Dietz' test suite:
3309 ** the type-error signalled from WARN has a filled-in DATUM slot.
3310 ** the type-error required when a stream is not associated with
3311 a file has the stream as its datum.
3312 ** type-errors on single-floats on x86-64 no longer have
3313 :INVALID-OBJECT as the datum
3314 ** the type-errors signalled for invalid function names now have
3315 a correct expected type
3316 ** (SETF (DOCUMENTATION ... 'STRUCTURE)) no longer signals an error
3317 for structures defined with a :TYPE. Documentation strings for
3318 typed structures are no longer immediately discarded
3319 ** FILE-STRING-LENGTH and STREAM-EXTERNAL-FORMAT now work on
3320 broadcast streams and synonym streams. FILE-LENGTH now also works
3321 on broadcast streams.
3323 changes in sbcl-0.9.0 relative to sbcl-0.8.21:
3324 * incompatible change: the --noprogrammer option, deprecated since
3325 version 0.7.5, has been removed. Please use the equivalent
3326 --disable-debugger option instead.
3327 * incompatible change: finalizers and *AFTER-GC-HOOKS* are now run with
3329 * incompatible change: support for *BEFORE-GC-HOOKS* (that have been
3330 inoperational for a while now) has been completely removed.
3331 * null lexical environments are now printed as #<NULL-LEXENV>,
3332 significantly reducing the amount of clutter in typical backtraces.
3333 * documentation on weak pointers, finalization, and after GC hooks
3334 has been added to the manual.
3335 * optimization: REPLACE on declared (UNSIGNED-BYTE 8) vectors, as well
3336 as other specialized array types, is much faster. SUBSEQ and
3337 COPY-SEQ on such arrays have also been sped up.
3338 * optimization: EQL is now more efficient when at least other argument
3339 is known to be of type (OR FIXNUM (NOT NUMBER)).
3340 * fixed bug: the runtime is now less vulnerable to changes in the
3341 size of the SBCL object on OS X, and virtual memory is reserved for
3342 all spaces that need to be at a fixed address.
3343 * fixed bug: finalizers are now thread-safe. (thanks to Gabor Mellis)
3344 * fixed bug: finalizers and after GC hooks that cause consing are now
3346 * fixed bug: compiler error messages and summaries are now printed to
3347 *ERROR-OUTPUT*, not *STANDARD-OUTPUT*.
3348 * fixed inference of the upper bound of an iteration variable.
3349 (reported by Rajat Datta).
3350 * fixed bug 211e: calling local functions with duplicated constant
3351 keyword argument no longer causes a bogus style warning about an
3353 * fixed bug 305: INLINE/NOTINLINE declaration no longer causes local
3354 ftype declaration to be disregarded. (reported by Dave Roberts)
3355 * fixed bug 373: caused by erronous compilation of references to alien
3356 variables in the runtime on ppc/darwin.
3357 * fixed bug 376: CONJUGATE type deriver.
3358 * fixed infinite looping of ALIEN-FUNCALL, compiled with high DEBUG.
3359 (reported by Baughn on #lisp)
3360 * a cross-compiler bug on non-x86 platforms has been identified and
3361 fixed. (thanks to Bruno Haible)
3362 * improvements to the MIPS runtime code for increased stability.
3363 (thanks to Thiemo Seufer)
3364 * increased the maximimum compact environment size to allow
3365 purify on images with large amounts of functions. (thanks to Cyrus Harmon)
3366 * partial workaround for bug 135: don't name the function we're
3367 calling for hairy cases of EVAL, so as not to accumulate one environment
3368 entry per call to EVAL. (reported by Kevin Reid)
3369 * improvements to the x86-64 disassembler. (thanks to Lutz Euler)
3370 * optimization: type testing for non-vector arrays should be faster.
3371 * fixed TRACE :ENCAPSULATE NIL, added support for :ENCAPSULATE NIL
3373 * bug fix: setting 31st element of a bit vector to zero did not work
3375 * bug fix: redefining a class definition which failed due to a
3376 previous accessor / function clash now works (but see BUGS entry
3377 #380 for more problems in this area). (thanks to Zach Beane)
3378 * the long form of DEFINE-METHOD-COMBINATION disables method group
3379 checking when given a single method group with pattern *. (thanks
3381 * on x86 compiler supports stack allocation of results of simple
3382 calls of MAKE-ARRAY, bound to variables, declared DYNAMIC-EXTENT.
3383 * support for building and running on Mac OS X 10.4 "Tiger" has been added
3384 ** Binaries built on Tiger will not run on 10.2 "Jaguar" currently
3385 * fixed some bugs related to Unicode integration:
3386 ** the restarts for recovering from input and output encoding
3387 errors only appear when there is in fact such an error to
3389 * fixed some bugs revealed by Paul Dietz' test suite:
3390 ** MISC.549 and similar: late transformation of unsafe type
3391 assertions into derived types caused unexpected code
3393 ** SCALE-FLOAT type deriver is less wrong.
3394 ** type derivers for EXP, LOG and similar functions compute result
3395 types for complex arguments better.
3396 ** (MISC.563) CONJUGATE type deriver works for very restricted
3398 ** out-of-line type testers for character strings are available.
3399 ** EQUAL compiler transform understands specialness of objects
3401 ** accessing double-floats stored on the stack now works on x86-64.
3402 ** debugger internals could sometimes create invalid lispobjs,
3403 resulting in GC crashes.
3404 ** MISC.548: type check weakening can convert required type into
3406 ** initialization forms for bindings are not in scope of free special
3409 changes in sbcl-0.8.21 (0.9alpha.1?) relative to sbcl-0.8.20:
3410 * incompatible change: thread support for non-NPTL systems has
3411 been removed - locking is buggy and unreliable. A threaded
3412 SBCL build will now warn at startup and refuse to create
3413 new threads, unless futex support is detected in the kernel
3414 * incompatible change: the top level REPL now has only an ABORT
3415 restart associated with it, not TOPLEVEL and ABORT as it used to.
3416 TOP and TOPLEVEL are now available as debugger commands for
3417 returning to the top level.
3418 * incompatible change: forms evaluated in the REPL now use the
3419 global optimization policy.
3420 * incompatible change: user- and system-initialization files are
3421 no longer processed with LOAD, but by READ and EVAL; hence the
3422 global optimization policy, startup package, readtable, etc,
3424 * The .fasl file format number has been incremented because of
3425 various incompatible changes.
3426 * internal entry point details and argument counts no longer appear
3427 in backtraces unless explicitly requested by setting
3428 SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS*.
3429 * built-in and standard functions no longer have names like "top
3430 level local call to FOO".
3431 * fixed bug 32: functions defined in non-null lexical environments
3432 now have more legible printed representation
3433 * fixed bug 33: functions defined in non-null lexical environemnts
3434 are now more amenable to inspection by INSPECT.
3435 * workaround for bug 354: XEPs no longer appear in backtraces unless
3436 explicitly requested.
3437 * fixed bug: receiving the signal which results from attempting to
3438 write to mprotect()ed memory (SIGSEGV on Linux and some *BSDs,
3439 SIGBUS on other *BSDs) on architectures where the C stack is also
3440 the Lisp stack (x86 and x86-64) from foreign code no longer leads
3441 to debugger confusion or wild instability. (reported by Cheuksan
3443 * fixed bug: COUNT and EQUAL no longer issue compiler efficiency
3444 notes when operating on objects known to be SIMPLE-BIT-VECTORs.
3445 (reported by Lutz Euler)
3446 * fixed bug: (TYPEP X '(MEMBER ...)) no longer returns a list in
3447 compiled code. (reported by Paul Dietz)
3448 * fixed bug 276b: mutating with MULTIPLE-VALUE-SETQ a binding of a
3449 specialized parameter to a method to something that is not TYPEP
3450 the specializer is now possible.
3451 * fixed bug: the MAKE-INSTANCE optimization is now correct in the
3452 face of package deletion.
3453 * fixed bug: LOAD should bind *LOAD-PATHNAME* to the merged
3454 pathname. (reported by David Tolpin on c.l.l)
3455 * contrib improvement: the SB-SIMPLE-STREAMS contrib now defines
3456 STRING-SIMPLE-STREAM and FILE-SIMPLE-STREAM as subclasses of
3457 STRING-STREAM and FILE-STREAM, respectively.
3458 * contrib improvement: SB-INTROSPECT handles more of SLIME's needs
3459 than previously; in addition, its test suite is now run on build.
3460 (thanks to Luke Gorrie)
3461 * a more robust x86-64 disassembler. (thanks to Lutz Euler)
3462 * optimization: added a immediate representation for single-floats
3464 * fixed some bugs revealed by Paul Dietz' test suite:
3465 ** MISC.564: defined out-of-line version of %ATAN2 on x86.
3466 ** attempting to create a package with a colliding nickname causes
3467 correctable errors to be signalled.
3468 ** MISC.572-574: :START1 and :START2 broken for simple-base-strings.
3469 ** several x86-64 backend bugs related to sign-extension of immediate
3472 changes in sbcl-0.8.20 (0.9alpha.0?) relative to sbcl-0.8.19:
3473 * fixed inspection of specialized arrays. (thanks to Simon Alexander)
3474 * fixed disassembly of SHLD and SHRD on x86. (thanks to David
3476 * fixed loading of multiply forward-referenced layouts.
3477 (thanks to Cheuksan Wang)
3478 * fixed bug 7: less verbose COMPILE-FILE output. Additionally, the
3479 output is now directed to *STANDARD-OUTPUT* as specified by ANSI.
3480 (see COMPILE-FILE documentation for details of :PRINT option)
3481 * fixed bugs 19 and 317: fixed-format floating point printing is
3482 more accurate. This also fixes a bug reported by Adam Warner
3483 related to the ~@F format directive.
3484 * fixed bug 371: bignum print/read inconsistency. (thanks to Harald
3486 * fixed bug: SET-SYNTAX-FROM-CHAR correctly shallow-copies a
3487 dispatch table if the from-char is a dispatch macro character.
3488 * fixed bug: COUNT and EQUAL on bit vectors with lengths divisible
3489 by the wordsize no longer ignore the last word. (reported by Lutz
3491 * fixed bug in type checking of dynamic-extent variables. (reported
3493 * optimization: sequence traversal functions use their freedom to
3494 coerce function designators to functions.
3495 * optimization: code with many calls to CLOS methods specialized on
3496 CLOS classes has had redundant type checks removed.
3497 * optimization: added declarations to speed up operations that access
3498 the internal character database (for example STRING-UPCASE)
3499 * optimization: comparison operations between floats and sufficiently small
3500 fixnums no longer create extra rationals
3501 * fixed some bugs related to Unicode integration:
3502 ** portions of multibyte characters at the end of buffers for
3503 character-based file input are correctly transferred to the
3504 start of the buffer at the next read.
3505 ** COMPILE-FILE now respects any EXTERNAL-FORMAT argument given,
3506 passing it through to OPEN.
3507 ** LOAD on source files likewise passes any EXTERNAL-FORMAT
3508 argument given to internal calls to OPEN.
3509 ** the built-in comment readers (introduced by character sequences
3510 ";" and "#|") are more forgiving to encoding errors; they will
3511 STYLE-WARN and then attempt to resync the stream at a character
3512 boundary. (thanks to Teemu Kalvas)
3513 * fixed some bugs in the x86-64 port:
3514 ** Negative short int return values from c-calls are sign-extended
3516 ** The stack is aligned to 16-bytes for c-calls, as required by
3517 the ABI. (thanks to Cheuksan Wang)
3518 ** The disassembler understands more x86-64. (thanks to Cheuksan Wang)
3519 ** The regression tests use SB-ALIEN:INT instead of SB-ALIEN:INTEGER
3520 for enums. (thanks to Vincent Arkesteijn)
3521 ** Multiple small optimizations and bugfixes for floating point
3523 * fixed some bugs revealed by Paul Dietz' test suite:
3524 ** Space, Tab, Linefeed, Return and Page have the invalid
3525 secondary constituent character trait.
3526 ** SET-SYNTAX-FROM-CHAR correctly copies multiple-escape character
3528 ** WITH-INPUT-FROM-STRING should only update the index place on
3530 ** Pretty-printing backquoted forms when *PRINT-CIRCLE* is true
3531 works more reliably.
3532 ** Bit-array operations (BIT-AND and similar) worked incorrectly
3533 with one-dimensional arrays with fill pointers.
3534 ** TYPE-OF failed on a complex with an integer realpart and a
3536 ** compiler failure during type inference for the code of form
3537 (IF (EQL X (THE ...)) ...) (MISC.535).
3539 changes in sbcl-0.8.19 relative to sbcl-0.8.18:
3540 * new port: SBCL now works in native 64-bit mode on x86-64/Linux
3541 platform. The port supports 61-bit fixnums, large memory spaces
3542 and reloading shared object files.
3543 * enhancement: saving cores with foreign code loaded is now
3544 supported on ppc/Darwin in addition to the previously supported
3546 * enhancement: the statistical profiler now walks deeper into the
3547 call stack for more meaningful call-graphs and accrued time
3548 reports (x86/x86-64 only). It also now reports time spent in
3550 * enhancement: it is now possible to trace most individual methods
3551 of a generic function in addition to tracing the generic function
3553 * bug fix: invalid :DEFAULT-INITARGS are detected in compiled calls
3555 * bug fix: defaulted initargs are passed to INITIALIZE-INSTANCE and
3556 SHARED-INITIALIZE methods from compiled calls to MAKE-INSTANCE.
3557 * bug fix: COERCE to (COMPLEX FLOAT) of a complex number no longer
3558 produces an error. (thanks to Vincent Arkesteijn)
3559 * bug fix: NAMESTRING on pathnames with :WILD components in their
3560 directories works correctly. (thanks to Artem V. Andreev)
3561 * fixed bug 125: compiler preserves identity of closures. (reported
3563 * bug fixed: functions with &REST arguments sometimes failed with
3564 "Undefined function" when compiled with (DEBUG 3). (reported by
3566 * bug fix: overflow during compiling of setting element of a bit
3567 vector with constant index and value. (reported by Timmy Douglas)
3568 * build fix: fixed the dependence on *LOAD-PATHNAME* and
3569 *COMPILE-FILE-PATHNAME* being absolute pathnames.
3570 * on x86 compiler partially supports stack allocation of dynamic-extent
3572 * GO and RETURN-FROM do not check the extent of their exit points
3573 when compiled with SAFETY 0.
3574 * fixed some bugs related to Unicode integration:
3575 ** encoding and decoding errors are now much more robustly
3576 handled; it should now be possible to recover even from invalid
3577 input or output to the terminal. (thanks to Teemu Kalvas)
3578 ** provided a first cut at implementing STRING-TO-OCTETS and
3579 OCTETS-TO-STRING. (thanks to Robert J. Macomber)
3580 ** altered the SB-MD5 contributed module slightly, changing the
3581 interface just enough for it to be supportable for builds where
3582 lisp characters are not eight bits.
3583 * fixed some bugs revealed by Paul Dietz' test suite:
3584 ** the FORMATTER-generated functions for ~V[ conditionals require
3585 the correct number of arguments.
3586 ** READ-FROM-STRING returns the mandated second value when applied
3587 to displaced strings.
3588 ** the #\Rubout and #\Backspace characters are treated as invalid
3589 constituent characters by the tokenizer.
3591 changes in sbcl-0.8.18 relative to sbcl-0.8.17:
3592 * new feature: reloading changed shared object files with
3593 LOAD-SHARED-OBJECT now causes the new definitions to take effect.
3594 * new feature: references to foreign variables and functions
3595 can now be compiled and loaded before the corresponding shared
3596 object file is loaded, as long as the foreign definitions are
3597 available at runtime.
3598 * Solaris 10 (aka SunOS 5.10) on the SPARC platform is now
3599 supported. (thanks to Dan Debertin)
3600 * SB-ALIEN enums can now be represented in Lisp by any symbols, not
3601 just keywords. (thanks to Vincent Arkesteijn)
3602 * fixed bug #331: structure-class instances corresponding to
3603 DEFSTRUCT forms are now created eagerly.
3604 * fixed bug #345: backtraces from calls to undefined functions work
3605 on x86 as well. Related bug #61 is now also partially fixed on x86
3606 (backtraces from throws to unknown catch tags.)
3607 * bug fix: lambda-list parsing is now stricter vrt. order and number
3608 of lambda-list keywords.
3609 * bug fix: as specified by AMOP, an error is signalled if a
3610 class-option appears multiple times in a DEFCLASS form. (reported
3612 * bug fix: RANDOM can be compiled when the compiler derives the type
3613 of its numeric argument as a disjoint set of small integers.
3614 (reported by Paul Dietz)
3615 * bug fix: starting a core saved with shared objects loaded when
3616 those objects are not available no longer causes threaded SBCL to
3617 hang. (reported by Sean Ross)
3618 * bug fix: evaluated FUNCTION no longer bypasses encapsulation (eg.
3620 * bug fix: (SETF MACRO-FUNCTION) now accepts an optional environment
3621 argument, which must always be NIL. (reported by Kalle Niemitalo)
3622 * bug fix: printing 1.0d+23 no longer results in an error.
3623 (reported by Rolf Wester for CMUCL; bug fix from Raymond Toy)
3624 * bug fix: structure slot setters preserve evaluation order. (thanks
3626 * fixed some bugs related to Unicode integration:
3627 ** RUN-PROGRAM can allow its child to take input from a Lisp
3628 stream. (reported by Stefan Scholl)
3629 ** ASDF-INSTALL successfully downloads .tar.gz files in all
3630 locales. (reported by Ken Causey)
3631 * fixed some bugs revealed by Paul Dietz' test suite:
3632 ** INCF, DECF and REMF evaluate their place form as specified in
3634 ** FORMATTER expands ~{ ~} iteration directives with V or #
3635 parameters correctly.
3636 ** FORMATTER deals with the ~@[ ~] conditional directive where the
3637 consequent uses no arguments correctly.
3638 ** the system has a partial understanding of the (COMPLEX RATIO)
3640 ** UPGRADED-COMPLEX-PART-TYPE obeys the lattice upgrading rules
3643 changes in sbcl-0.8.17 relative to sbcl-0.8.16:
3644 * new feature: a build-time option (controlled by the :SB-UNICODE
3645 keyword feature, enabled by default) for building the system with
3646 support for the entire 21-bit character space defined by the
3648 * new feature: the system now has rudimentary external-format
3649 support; the primary user-visible change at this time is that
3650 characters with the high bit set (such as lower-case-e-acute) will
3651 print correctly to a terminal in a UTF-8 environment.
3652 * minor incompatible change: BASE-CHAR no longer names a class;
3653 however, CHARACTER continues to do so, as required by ANSI.
3654 * minor incompatible change: SB-DEBUG:*DEBUG-PRINT-FOO* variables
3655 are no longer supported, and SB-DEBUG:*DEBUG-PRINT-VARIABLE-ALIST*
3656 has been moved to the SB-EXT package (temporarily re-exported from
3658 * minor incompatible change: SB-C::*COMPILER-ERROR-PRINT-FOO* variables
3659 are no longer supported: use SB-EXT:*COMPILER-PRINT-VARIABLE-ALIST*
3661 * fixed bug #351: better error-handlind and reporting for malformed
3663 * fixed bug #350: bignum-printing is now more memory-efficient,
3664 allowing printing of very large bignums, eg. (expt 2 10000000).
3665 (reported by Bruno Haible)
3666 * fixed bug #302: better primitive-type selection for intersection
3668 * fixed bug #308: non-graphic characters now all have names, as
3669 required. (reported by Bruno Haible)
3670 * bug fix: redefining a class with different superclasses now correctly
3671 removes it from the direct-subclasses of its previous superclasses.
3672 (reported by David Morse)
3673 * bug fix: (SETF FIND-CLASS) using a FORWARD-REFERENCED-CLASS as the
3674 new value now works. (reported by Bruno Haible)
3675 * bug fix: correct canonicalization of multiple non-standard slot
3676 options in DEFCLASS as per AMOP 5.4.2. (reported by Bruno Haible)
3677 * bug fix: SB-MOP:CLASS-PROTOTYPE now signals an error if the class
3678 is not yet finalized, as required by AMOP. (reported by Bruno Haible)
3679 * bug fix: SB-MOP:ALLOCATE-INSTANCE method for instances of BUILT-IN-CLASS
3680 now exists, an signals an error.
3681 * bug fix: duplicate LOOP variable bindings now signal PROGRAM-ERROR
3682 during macroexpansion for non-iteration variables as well. (reported
3683 by Bruno Haible for CMUCL)
3684 * bug fix: Cyclic structures and unprintable objects in compiler
3685 messages no longer cause errors. (reported by Bruno Haible)
3686 * bug fix: READ, READ-PRESERVING-WHITESPACE, READ-DELIMITED-LIST,
3687 and READ-FROM-STRING all now return a primary value of NIL if
3688 *READ-SUPPRESS* is true. (reported by Bruno Haible for CMUCL)
3689 * bug fix: Default value of EOF-ERROR-P in READ-FROM-STRING is true.
3690 (reported by Bruno Haible for CMUCL)
3691 * bug fix: ERROR now signals a TYPE-ERROR if the arguments to ERROR
3692 do not designate a condition. (reported by Bruno Haible for
3694 * bug fix: UNINTERN, USE-PACKAGE, IMPORT and EXPORT all signal an
3695 SB-EXT:NAME-CONFLICT condition (subtype of PACKAGE-ERROR) in the
3696 name conflict situations in CLHS 11.1.1.2.5, and provide a restart
3697 permitting resolution in favour of any of the conflicting symbols.
3698 (reported by Bruno Haible for CMUCL)
3699 * bug fix: EQUAL compiler optimizations is less aggressive on
3700 strings which can potentially compare true despite having distinct
3701 specialized array element types.
3702 * bug fix: unit enumerations can be defined without dividing by
3703 zero. (thanks to Vincent Arkesteijn)
3704 * FORMAT compile-time argument count checking has been enhanced.
3705 (report from Bruno Haible for CMUCL)
3706 * a partial workaround for the bug 262: the compiler does not try to
3707 inline-expand a local function doing RETURN-FROM from a deleted
3708 BLOCK. (thanks to Peter Denno for the bug report and to David
3709 Wragg for the simple test case)
3710 * fixed some bugs revealed by Paul Dietz' test suite:
3711 ** RENAME-PACKAGE allows all package designators as new package
3713 ** constraint propagation and lambda variable substitution are
3714 more cautious in dealing with partially deleted code.
3715 ** compiler sometimes lost reoptimization passes.
3716 ** CERROR, given a condition as condition designator, passes its
3717 remaining arguments to the continue format control without
3719 ** Case-altering FORMAT directives work correctly on non-ASCII
3721 ** The REAL type specifier handles bounds outside the floating
3722 point ranges without signalling FLOATING-POINT-OVERFLOW.
3723 ** Functions with IR1-transformations can create intercomponent
3724 references to global functions.
3725 ** NIL parameter to the FORMAT directive ~^ means `unsupplied
3727 ** FORMAT ~R treats a nil value for its first parameter correctly.
3729 changes in sbcl-0.8.16 relative to sbcl-0.8.15:
3730 * enhancement: saving cores with foreign code loaded is now
3731 supported on x86/NetBSD and sparc/Linux in addition to the previously
3732 supported platforms.
3733 * bug fix: on some platforms repeated installations caused multiple
3734 copies of HTML documentation to be installed -- should not happen
3735 any more. (reported by Stefan Scholl)
3736 * bug fix: parsing self-recursive alien record types multiple times
3737 no longer causes infinite recursion. (reported by Thomas F. Burdick,
3738 original patch by Helmut Eller for CMUCL)
3739 * bug fix: stack-exhaustion detection works now on NetBSD as well.
3740 (thanks to Richard Kreuter)
3741 * bug fix: defining classes whose accessors are methods on existing
3742 generic functions in other (locked) packages no longer signals
3743 bogus package lock violations. (reported by François-René Rideau)
3744 * bug fix: special variables as DEFMETHOD parameters no longer have
3745 associated bogus type declarations. (reported by David Wragg and
3747 * bug fix: read-write consistency on streams of element-type
3748 (SIGNED-BYTE N) for N > 32. (reported by Bruno Haible for CMUCL)
3749 * bug fix: redefiniton of the only method of a generic function with
3750 no DEFGENERIC no longer emits a full WARNING. In addition,
3751 redefinition of generic functions with no DEFGENERIC to an
3752 incompatible lambda list now signals an error. (thanks to Zach
3754 * bug fix: DEFGENERIC now works even when there's a function of the
3755 same name in an enclosing lexical environment. (thanks to Zach
3757 * fixed compiler failure, caused by instrumenting code during
3758 IR1-optimization. (Debian bug report #273606 by Gabor Melis)
3759 * optimization: added loop analysis and improved register allocation
3760 * fixed some bugs revealed by Paul Dietz' test suite:
3761 ** POSITION on displaced vectors with non-zero displacement
3762 returns the right answer.
3763 ** (SIMPLE-STRING) is a valid type specifier for sequence
3765 ** *PRINT-LEVEL* handling for slotless structures is pedantically
3767 ** PPRINT-INDENT accepts a request for an indentation of any REAL.
3768 ** PPRINT-TAB (and the FORMAT ~T directive) now indent by the
3770 ** The justification version of the FORMAT ~< directive treats
3771 non-zero minpad parameter correctly.
3773 changes in sbcl-0.8.15 relative to sbcl-0.8.14:
3774 * incompatible change: SB-INT:*BEFORE-SAVE-INITIALIZATIONS* and
3775 SB-INT:*AFTER-SAVE-INITIALIZATIONS* have been renamed
3776 SB-EXT:*SAVE-HOOKS* and SB-EXT:*INIT-HOOKS*, and are now part of
3777 the supported interface.
3778 * new feature: Single-stepping of code compiled with DEBUG 2 or
3779 higher and (> DEBUG (MAX SPACE SPEED)) is now possible.
3780 * new feature: saving cores with foreign code loaded is now
3781 supported on x86/FreeBSD, x86/Linux, and sparc/SunOS. (based on
3782 Timothy Moore's work for CMUCL)
3783 * bug fix: DEFTYPE lambda-list parsing now binds unsupplied keyword
3784 parameters to * instead of NIL if no initform is supplied.
3785 (reported by Johan Bockgaard)
3786 * bug fix: DEFINE-COMPILER-MACRO lambda-list parsing now binds
3787 correctly when FUNCALL appears as the car of the form. Note:
3788 despite this FUNCALL forms are not currently subject to
3789 compiler-macro expansion. (port of Raymond Toy's fix for the
3790 same from CMUCL, reported by Johan Bockgaard)
3791 * bug fix: FOR ... ON ... -clauses in LOOP now work on dotted lists
3792 (thanks for Teemu Kalvas)
3793 * bug fix: in FORMAT ~^ inside ~:{ now correctly steps to the next
3794 case instead of terminating the iteration (thanks for Julian
3795 Squires, Sean Champ and Raymond Toy)
3796 * bug fix: incorrect expansion of defgeneric that caused a style
3797 warning. (thanks for Zach Beane)
3798 * bug fix: slot accessor effective method computation works properly
3799 for classes with multiple non-standard applicable methods on
3800 SB-MOP:SLOT-VALUE-USING-CLASS. (reported by Ralf Mattes)
3801 * on x86 compiler supports stack allocation of results of LIST and
3802 LIST*, bound to variables, declared DYNAMIC-EXTENT. (based on
3803 CMUCL implementation by Gerd Moellmann)
3804 * fixed some bugs revealed by Paul Dietz' test suite:
3805 ** FORMAT strings with both the ~<~:;~> form of the justification
3806 directive and pretty-printing directives cause an error.
3808 changes in sbcl-0.8.14 relative to sbcl-0.8.13:
3809 * incompatible change: the internal functions
3810 SB-KERNEL:32BIT-LOGICAL-FOO, intended for providing efficient
3811 logical operations on (UNSIGNED-BYTE 32) values, have been renamed
3812 to SB-KERNEL:WORD-LOGICAL-FOO. Modular arithmetic should be used
3813 instead of the old functions.
3814 * new feature: on platforms where "dladdr" is available foreign
3815 function names now appear in backtraces. (based on Helmut Eller's
3817 * documentation: documentation for SB-BSD-SOCKETS, SB-GRAY,
3818 SB-SIMPLE-STREAMS, and SB-PROFILE have been integrated into the user
3820 * documentation: ASDF manual is now distributed with SBCL.
3821 * bug fix: SBCL can now load its contributed modules with REQUIRE
3822 even if the system-provided entries have been removed from
3823 ASDF:*CENTRAL-REGISTRY*. Infinite recursion in REQUIRE is also
3825 * bug fix: backtraces involving undefined functions or assembly
3826 routines are more informative. (thanks to Brian Downing)
3827 * bug fix: mutually referent alien structures now work correctly.
3828 (reported by Rick Taube)
3829 * bug fix: structures defined by WITH-ALIEN can be referred to
3830 within other definitions in the same WITH-ALIEN.
3831 * bug fix: division operators (MOD, TRUNCATE and the like) with
3832 constant zero divisors and integer dividends no longer generate
3834 * bug fix: provide default methods for INPUT-STREAM-P and
3835 OUTPUT-STREAM-P specialized on SB-GRAY:FUNDAMENTAL-STREAM.
3836 * bug fix: improve the detection and resolution of MOP metacycles
3837 (where effective method computation depends on the generic function
3838 having its effective method computed). (reported by Bruno Haible)
3839 * bug fix: pass the right initargs to :BEFORE or :AFTER methods on
3840 SHARED-INITIALIZE or INITIALIZE-INSTANCE in optimized
3841 MAKE-INSTANCE constructors. (reported by Axel Schairer for cmucl)
3842 * bug fix: pathnames with relative directory components can be
3843 represented relative to default pathnames.
3844 * optimization: in taking the GCD of bignums, reduce the two bignums
3845 to approximately the same size (using Euclid's algorithm) before
3846 applying the more sophisticated binary GCD. (thanks to Juho
3848 * optimization: COUNT on bitvectors now operates word-at-a-time.
3849 * optimization: ASH with a positive, but not necessarily constant,
3850 (leftwards) shift, when in a modular context, is compiled to a
3852 * fixed some bugs revealed by Paul Dietz' test suite:
3853 ** FORMAT variable parameters ("~V<char>") are defaulted properly
3854 if the corresponding argument is NIL.
3855 ** FORMAT directives accepting a minpad parameter treat negative
3857 ** literal commas as character parameters to FORMAT directives are
3859 ** literal spaces directly after ~<Newline> directives within a
3860 format-logical-block (~:< ~@:>) do not induce :FILL-style
3861 conditional newlines.
3862 ** PRINT-UNREADABLE-OBJECT inserts spaces as specified (and only
3863 as specified: it no longer includes conditional newlines).
3864 ** PRINC-TO-STRING binds *PRINT-READABLY* to NIL (as well as
3866 ** PPRINT-LOGICAL-BLOCK signals a TYPE-ERROR if its :PREFIX or
3867 :PER-LINE-PREFIX argument does not evaluate to a string.
3869 changes in sbcl-0.8.13 relative to sbcl-0.8.12:
3870 * new feature: SB-PACKAGE-LOCKS. See the "Package Locks" section of
3871 the manual for details; for now, package locks can be disabled by
3872 removing :SB-PACKAGE-LOCKS in customize-target-features.lisp, but
3873 if no major problems are found then it is likely that they will be
3874 compiled in unconditionally.
3875 * major incompatible change: LOAD-FOREIGN and LOAD-1-FOREIGN are now
3876 unsupported operators on all platforms. To load a shared library
3877 into SBCL, use SB-ALIEN:LOAD-SHARED-OBJECT. To load a non-shared
3878 object file, link it into a shared library outside of SBCL and
3879 load it using SB-ALIEN:LOAD-SHARED-OBJECT. (incidentally fixes
3881 * bug workaround: ROOM T and the GC were not working together
3882 reliably, because invariants expected by the SB!VM:INSTANCE-USAGE
3883 reporting facility aren't preserved. That reporting has been
3884 disabled, so now until and unless someone figures out how to make it
3885 work reliably with the current GC, (ROOM T) is equivalent to (ROOM).
3886 * minor incompatible change: as threatened around sbcl-0.8.0, the
3887 home package of MOP-related symbols is now SB-MOP, not SB-PCL.
3888 The symbols are also exported from SB-PCL for backwards
3889 compatibility, but more so than before SB-PCL should be treated as
3890 an implementation-internal package.
3891 * fasl format changed: SBCL 0.8.13 fasls are incompatible with those
3893 * the SB-SPROF contrib now works on (most) non-x86 architectures.
3894 It is known as of this release not to work on the Alpha, however.
3895 * fixed bug #167: errors signalled due to illegal syntax in method
3896 bodies are now more legible.
3897 * fixed bug #338: instances of EQL-SPECIFIER are now valid type
3898 designators and can hence be used with TYPEP.
3899 * fixed bug #333: CHECK-TYPE now ensures that the type error
3900 signalled, if any, has the right object to be accessed by
3901 TYPE-ERROR-DATUM. (reported by Tony Martinez)
3902 * fixed bug #340: SETF of VALUES obeys the specification in ANSI
3903 5.1.2.3 for multiple-value place subforms. (reported by Kalle
3905 * fixed bug #334: programmatic addition of slots using specialized
3906 methods on SB-MOP:COMPUTE-SLOTS works for :ALLOCATION :INSTANCE
3907 and :ALLOCATION :CLASS slots.
3908 * fixed bug #269: SCALE-FLOAT scales floats by any integer, not just
3909 float exponents. (rereported by Peter Seibel)
3910 * fixed a bug: #\Space (and other whitespace characters) are no
3911 longer considered to be macro characters in standard syntax by
3912 GET-MACRO-CHARACTER.
3913 * fixed bug: initialization of condition class metaobjects no longer
3914 causes an instance of the condition to be created. (reported by
3916 * fixed bug: it is now possible to have slots such that
3917 SB-MOP:SLOT-DEFINITION-ALLOCATION of the effective slot
3918 description is neither :INSTANCE nor :CLASS.
3919 * fixed bug: the ctor optimization of MAKE-INSTANCE now respects
3920 user-defined methods on SLOT-BOUNDP-USING-CLASS and (SETF
3921 SLOT-VALUE-USING-CLASS), and no longer causes errors with
3922 non-standard SLOT-DEFINITION-ALLOCATION values.
3923 * fixed bugs: various race conditions handling exiting threads.
3924 CL-PPCRE's thread torture test now passes.
3925 * fixed arguably-a-bug: GC time proportional to number of threads in
3926 system even when most of them are idle
3927 * optimization: improved performance of BIT and SBIT on bit-vectors.
3928 * .fasl file incompatibility: The fasl file version number has
3929 been incremented because of changes associated with package locks.
3931 changes in sbcl-0.8.12 relative to sbcl-0.8.11:
3932 * minor incompatible change: the system no longer provides
3933 optimization hints (conditions which are TYPEP
3934 SB-EXT:COMPILER-NOTE) for conforming code in default compilation
3935 mode; these hints are still emitted when higher SPEED optimization
3937 * new contrib module: a sampling profiler (profiling by statistical
3938 sampling, rather than by instrumenting functions) is available as
3939 the SB-SPROF contrib. (thanks to Gerd Moellmann and Juho Snellman)
3940 * the behaviour of the standard function ED is now customizeable by
3941 third parties through a hook variable: see ED's documentation
3942 string for information on the protocol.
3943 * the compiler no longer emits efficiency notes for (FUNCALL X)
3944 when the type of X is uncertain under default optimization
3946 * fixed bug 276: mutating a binding of a specialized parameter to a
3947 method to something that is not TYPEP the specializer is now
3949 * fixed bugs 45d and 118: DOUBLE-FLOAT[-NEGATIVE]-EPSILON now
3950 exhibit the required behaviour on the x86 platform. (thanks to
3951 Peter van Eynde, Eric Marsden and Bruno Haible)
3952 * fixed bug 335: ATANH now computes the inverse hyperbolic tangent
3953 even for difficult arguments. (reported by Peter Graves)
3954 * fixed bug 141a: the backquote printer now descends quoted
3956 * fixed another bug in backquote printing: no more destructive
3957 modification of the form's list structure. (reported by Brian
3959 * fixed bug in INTERRUPT-THREAD: pin the function, so that it cannot
3960 move between its address being taken and the call to
3961 interrupt_thread, fixing a crashing race condition.
3962 * the SB-POSIX contrib implementation has been adjusted so that it
3963 no longer exhibits ridiculously poor performance when constructing
3964 instances corresponding to C structs.
3966 changes in sbcl-0.8.11 relative to sbcl-0.8.10:
3967 * minor incompatible change: the sb-grovel contrib now treats C
3968 structures as alien (in the sense of SB-ALIEN) objects rather than
3969 as undistinguished (simple-array (unsigned-byte 8) (*))s. This
3970 has implications for memory management of client code
3971 (sb-grovel-returned objects must now be manually managed) and for
3972 type safety (alien objects now have full types).
3973 * new feature: the SB-EXT:MUFFLE-CONDITIONS declaration should be
3974 used to control emission of compiler diagnostics, rather than the
3975 SB-EXT:INHIBIT-WARNINGS OPTIMIZE quality. See the manual for
3976 documentation on this feature. The SB-EXT:INHIBIT-WARNINGS
3977 quality should be considered deprecated.
3978 * install.sh now installs the user manual as well
3979 * (not quite a new documentable feature, but worth considering in
3980 the light of the new SB-EXT:MUFFLE-CONDITIONS declaration): the
3981 beginnings of a semantically meaningful condition hierarchy is
3982 under development, for use in SB-EXT:MUFFLE-CONDITIONS and by
3984 * fixed bug: PARSE-NAMESTRING now accepts any valid pathaname
3985 designator as the defaults argument.
3986 * fixed bug: Displaced arrays whose displaced-to array has become
3987 too small now cause ARRAY-DIMENSION to signal an error, providing
3988 for safer bounds-checking. (reported by Bruno Haible)
3989 * fixed bug: DEFCLASS slot definitions with identical :READER and
3990 :WRITER names now signal a reasonable error. (reported by Thomas
3992 * fixed bug: CLOSE :ABORT T on appending stream no longer causes
3994 * fixed bug: Invalid slot specification errors now print correctly.
3995 (thanks to Zach Beane)
3996 * fixed bug 320: Shared to local slot value transfers in class
3997 redefinitions now happen corrently from superclasses as
3998 well. (reported by Bruno Haible)
3999 * fixed bug 316: SHIFTF now accepts VALUES forms. (reported by Bruno
4001 * fixed bug 322: DEFSTRUCT :TYPE LIST type predicates now handle
4002 improper lists correctly. (reported by Bruno Haible)
4003 * fixed bug 313: source-transform for <fun-name> was erroneously
4004 applied to a call of a value of a variable with name <fun-name>.
4005 (reported by Antonio Menezes Leitao)
4006 * fixed bug 307: The obsolete instance protocol ensures that
4007 subclasses are properly obsoleted. (thanks to Nikodemus Siivola)
4008 * fixed bug 298, revealed by Paul F. Dietz' test suite: SBCL can
4009 remove dead unknown-values globs from the middle of the stack.
4010 * added a new restart to *BREAK-ON-SIGNALS* handling to make it
4011 easier to resume long computations after using *BREAK-ON-SIGNALS*
4012 to diagnose and fix failures. (thanks to Nikodemus Siivola)
4013 * fixed bug reported by PFD in lisppaste #747 (and Bruno Haible from
4014 CLISP test suite): WRITE-TO-STRING is not constant-foldable.
4015 * fixed bugs in COMPLEX type specifier: UPGRADED-COMPLEX-PART-TYPE
4016 is now consistent with (COMPLEX <x>); bugs in treatment of COMPLEX
4017 MEMBER and UNION types have likewise been fixed. (thanks to Bruno
4019 * fixed a (fairly theoretical) bug in string printing: if
4020 *PRINT-READABLY* is true, signal PRINT-NOT-READABLE if the string
4021 does not have array-element-type equal to the most general string
4023 * fixed bug: SET-PPRINT-DISPATCH does not immediately resolve
4024 function name. (thanks to Nikodemus Siivola)
4025 * fixed bug: compile-time format string checker failed on
4026 non-closed ~{. (reported by Thomas F Burdick)
4027 * fixed bug: as reported by Kalle Olavi Niemitalo on #lisp IRC,
4028 don't warn on legal loop code involving more than one aggregate
4029 boolean. (thanks to Nikodemus Siivola)
4030 * fixed bug: as reported by Peter Graves on #lisp IRC, passing a NIL
4031 in keyword position to MAKE-PACKAGE was not being reported as
4033 * fixed bug: as reported by Juan Ripoll on cmucl-imp,
4034 MULTIPLE-VALUE-BIND should be able to lexically bind lambda list
4036 * fixed bugs 280 and 312: the checking for multiple definitions in a
4037 file is less likely to become confused by uses of inline
4039 * fixed bug: the #S reader macro performs the keyword coercion
4040 specified for slot names. (reported by Kalle Niemitalo)
4041 * fixed bug: lambda lists may contain symbols whose names start with
4042 & but are not lambda-list-keywords; their occurrence triggers a
4044 * fixed bug 321: define-method-combination argument lambda lists do
4045 not cause invalid code to be generated when &optional or &aux
4046 variables have default values. (reported by Bruno Haible)
4047 * fixed bug 327: system subclasses of STRUCTURE-OBJECT or CONDITION
4048 have CLOS classes; this appears also to have fixed reported
4049 instability in stack exhaustion detection.
4050 * fixed bug: the CONTROL-ERROR from ABORT, CONTINUE and
4051 MUFFLE-WARNING when no associated restart is present is now
4053 * optimization: rearranged the expansion of various defining macros
4054 so that each expands into only one top-level form in a
4055 :LOAD-TOPLEVEL context; this appears to decrease fasl sizes by
4057 * optimization: used a previously little-used slot in symbols to
4058 cache SXHASH values, yielding a 5-10% compiler speedup. (thanks
4060 * fixed some bugs revealed by Paul Dietz' test suite:
4061 ** MAKE-INSTANCES-OBSOLETE returns the class name when called with
4063 ** Fixed an optimization bug related to inheritance of initforms
4064 from local to shared slots.
4065 ** FILE-POSITION works as specified on BROADCAST-STREAMs.
4066 ** CAST optimizer forgot to flush argument derived type.
4067 ** print/read consistency on floats is now orders of magnitude
4068 more likely. (thanks also to Bruno Haible for a similar report
4070 ** removed stack cleaning in the cleanup part of UNWIND-PROTECT.
4071 ** IMAGPART is specified (infelicitously) to return (* 0 <thing>)
4072 for objects of type REAL. Make it so.
4073 ** SXHASH is specified (infelicitously) to respect similarity,
4074 which means that (SXHASH 0.0) must equal (SXHASH -0.0). Make
4075 it so. (thanks to Markus Ziegler)
4076 ** on the Alpha, the compiler succeeds in compiling functions
4077 returning a known number of arguments greater than 63.
4078 ** fixed handling of invalid NIL arguments in keyword position
4080 ** fixed non-pretty printing of arrays with *PRINT-RADIX* being
4082 ** provided a readably-printable representation for RANDOM-STATE
4084 ** ensured that pathnames, where they have a namestring, always
4085 print using #P"..." syntax.
4087 changes in sbcl-0.8.10 relative to sbcl-0.8.9:
4088 * Support for the forthcoming 2.0 version of the NetBSD kernel
4089 running on x86 hardware has been added. (thanks to Perry
4090 E. Metzger most immediately, and others for their past work)
4091 * SBCL now runs on OpenBSD 3.4. (Thanks to Scott Parish; 3.4 is the
4092 current release version; SBCL's OpenBSD support had been broken
4093 since about the time of OpenBSD's switch to ELF binary format.)
4094 * [placeholder for DX summary]
4095 ** user code with &REST lists declared dynamic-extent, under high
4096 speed or space and low safety and debug optimization policy.
4097 * The manual has been converted to Texinfo format and the debugger
4098 chapter from the cmucl manual has been added.
4099 * A facility has been added to extract documentation strings from
4100 sbcl and store them as Texinfo-formatted snippets for inclusion in
4101 the manual (via Texinfo's @include directive)
4102 * bug fix: compiler emitted division in optimized DEREF. (thanks for
4103 the test case to Dave Roberts)
4104 * bug fix: multidimensional simple arrays loaded from FASLs had fill
4105 pointers. (reported by Sean Ross)
4106 * bug fix: PROFILE output is printed nicely even for large numerical
4107 values. (thanks to Zach Beane)
4108 * bug fix: streams with element-type (SIGNED-BYTE <N>) for <N>
4109 greater than 32 handle EOF correctly.
4110 * bug fix: on X86 an immediate argument of the IMUL instruction is
4111 correctly printed in disassembly. (thanks to Lutz Euler)
4112 * bug fix: class slots in redefined classes preserve their old
4113 values. (thanks to Bruno Haible and Nikodemus Siivola)
4114 * bug fix: compilation of funcalls of CXX+R (e.g. CDDR) now
4115 succeeds. (reported by Marco Baringer)
4116 * fixed some bugs revealed by Paul Dietz' test suite:
4117 ** READ-SEQUENCE now works on ECHO-STREAMs.
4118 ** RATIONALIZE works more according to its specification. (thanks
4121 changes in sbcl-0.8.9 relative to sbcl-0.8.8:
4122 * deprecation of old extension: *DEBUG-PRINT-LEVEL* and
4123 *DEBUG-PRINT-LENGTH* are now deprecated in favor of the new, more
4124 general SB-DEBUG:*DEBUG-PRINT-VARIABLE-ALIST* mechanism. (This
4125 should matter to you only if you rebind the printer control
4126 variables and then find you want different bindings in the
4127 debugger than in the ordinary execution of your program.)
4128 * The runtime build system has been tweaked to support building
4129 (on SPARC/SunOS) using a C compiler which invokes Sun's own
4130 assembler and linker. (thanks to Nikodemus Siivola)
4131 * Unbound, undefined, undeclared variables now trigger full
4132 WARNINGs, not just STYLE-WARNINGs, on the assumption that this is
4133 more often programmer error than deliberate exploitation of undefined
4135 * optimization: the hash algorithm for strings has changed to one
4136 that is less vulnerable to spurious collisions. (thanks to Juho
4138 * optimization: VECTOR-POP, VECTOR-PUSH-EXTEND and REPLACE do less
4139 needless bounds checking. (thanks to Juho Snellman)
4140 * optimization: implemented multiplication as a modular
4141 (UNSIGNED-BYTE 32) operation on the PPC backend.
4142 * fixed some bugs revealed by Paul Dietz' test suite:
4143 ** ADJUST-ARRAY now copies the datum in a zero rank array if
4145 ** ADJUST-ARRAY no longer adjusts non-adjustable arrays.
4146 ** MAKE-STRING-INPUT-STREAM accepts NIL as a value for :END.
4147 ** MAKE-STRING-INPUT-STREAM functions correctly for strings with
4149 ** CLEAR-INPUT accepts NIL and T for its (optional) stream
4151 ** Ratios can now be printed correctly with *PRINT-BASE* bound to
4153 ** ECHO-STREAMs no longer attempt to echo the end of file value to
4154 their output stream on EOF from read.
4155 ** CONCATENATED-STREAM-STREAMS discards constituent streams which
4156 have been read to end-of-file.
4157 ** CLOSE works as expected on the null CONCATENATED-STREAM, and on
4159 ** Printing symbols with *PRINT-CASE* :CAPITALIZE respects the
4160 description of determination of which consecutive characters
4162 ** Printing the "Space" character with escaping on now yields "#\\ ",
4163 rather than "#\\Space", as mandated by ANSI 22.1.3.2.
4164 ** Reading floating-point numbers with *READ-BASE* set to a number
4165 less than 10 works correctly.
4166 ** Reading floating-point numbers with *READ-BASE* set to a number
4167 more than 10 works correctly.
4168 ** Printing with *PRINT-READABLY* targets the standard readtable, not
4169 the readtable currently in effect.
4171 changes in sbcl-0.8.8 relative to sbcl-0.8.7:
4172 * minor incompatible change: parsing of namestrings on a physical
4173 (Unix) host has changed; numbers after the final #\. in a
4174 namestring are no longer interpreted as a version field. This is
4175 intented to be largely invisible to the user, except that the
4176 meaning of the namestring "*.*.*" has changed: it now refers to a
4177 pathname with :TYPE :WILD :NAME #<pattern "*.*">. This namestring
4178 should usually be replaced by
4179 (make-pathname :name :wild :type :wild :version :wild)
4180 with the added benefit that this is more likely to be portable.
4181 As a consequence of this change, the :IF-EXISTS :NEW-VERSION
4182 option to OPEN now signals an error if the file being opened
4183 exists; this may have an impact on existing code.
4184 * fixed bug 190: RUN-PROGRAM should now work properly, respecting
4185 signals received, on the PowerPC platforms (both Linux and
4186 Darwin). (thanks to Pierre Mai for pointing out the location of
4188 * several fixes on OS X: The system now builds and runs cleanly on
4189 Panther (10.3), and works around sigreturn bug (no more SIGFPEs).
4190 (thanks to Brian Mastenbrook)
4191 * bug fix: DECODE-UNIVERSAL-TIME now accepts timezone arguments with
4192 second-resolution: integer multiples of 1/3600 between -24 and 24.
4193 (thanks to Vincent Arkesteijn)
4194 * bug fix: functions =, /=, <, <=, >, >= did not check the argument
4195 type when called with 1 argument; PEEK-CHAR checked type of
4196 PEEK-TYPE only after having read first character from a
4197 stream. (reported by Peter Graves)
4198 * bug fix: the garbage collector now has much better locality
4199 behaviour, and in particular no longer treats all memory as being
4200 exhausted when many small objects point to each other in a deeply
4202 * bug fix: arrays specialized on (UNSIGNED-BYTE 15) are now
4203 recognized as being TYPEP their class.
4204 * bug fix: the PUSHNEW documentation string has been corrected.
4205 (thanks to Vincent Arkesteijn)
4206 * bug fix: defaulting of the value for the last of an atypically
4207 large number of multiple values being bound was not being
4208 performed correctly on the Alpha or PPC platforms
4209 * optimization: implemented multiplication as a modular
4210 (UNSIGNED-BYTE 32) operation on the x86 backend.
4211 * optimization: SEARCH on simple-base-strings can now be open-coded.
4212 (see also contrib/compiler-extras.lisp for inspiration for
4213 teaching the compiler about the Boyer-Moore algorithm).
4214 * value, returned by MAX (and MIN) called with several EQUALP, but
4215 not EQL, arguments now does not depend on compiler settings.
4216 * fixed some bugs revealed by Paul Dietz' test suite:
4217 ** in stack analysis liveness information is propagated from
4218 non-local entry points.
4219 ** pathwise CAST removing failed when the CAST node did not start
4221 ** INPUT-STREAM-P, OUTPUT-STREAM-P, STREAM-ELEMENT-TYPE and
4222 OPEN-STREAM-P signal a TYPE-ERROR if their argument is not a
4224 ** LOAD-LOGICAL-PATHNAME-TRANSLATIONS returns NIL if the logical
4225 host is already defined.
4226 ** RENAME-FILE works on streams instead of signalling an internal
4228 ** PEEK-CHAR uses the current readtable when determining whether
4229 or not a character is whitespace.
4230 ** MERGE-PATHNAMES handles the case when the pathname does not
4231 specify a name while the default-pathname specifies a version.
4232 ** Pathnames now stand a better chance of respecting print/read
4234 ** Attempting to use standardized file system operators with a
4235 pathname with invalid :DIRECTORY components signals a
4237 ** OPEN :DIRECTION :IO no longer fails to work on non-existent
4239 ** DIRECTORY on logical pathnames is more correct.
4240 ** CLEAR-INPUT, CLEAR-OUTPUT, FINISH-OUTPUT and FORCE-OUTPUT
4241 signal a TYPE-ERROR if their argument is not a stream.
4242 ** READ-BYTE and WRITE-BYTE signal a TYPE-ERROR if their stream
4243 designator argument does not designate a stream.
4244 ** OPEN-STREAM-P and INPUT-STREAM-P on synonym streams work by
4245 examining the synonym.
4246 ** STREAM-ELEMENT-TYPE and FRESH-LINE on broadcast-streams now
4248 ** OPEN and WITH-OPEN-STREAM allow opening streams with
4249 element-type larger than ([UN]SIGNED-BYTE 32).
4251 changes in sbcl-0.8.7 relative to sbcl-0.8.6:
4252 * When built with the :SB-FUTEX feature, threaded builds now take
4253 advantage of the "fast userspace mutex" facility in Linux kernel 2.6
4254 for faster/more reliable mutex and condition variable support.
4255 * Incompatible change (but one you probably shouldn't have been using
4256 anyway): the interface and code for arbitrating between multiple
4257 threads in the same user session has been redesigned.
4258 * bug fix: GET-SETF-EXPANSION no longer throws an internal type
4259 error when called without an explicit environment argument.
4260 (thanks to Nikodemus Siivola)
4261 * bug fix: buffered :DIRECTION :IO streams are less likely to become
4262 confused about their position. (thanks to Adam Warner and Gerd
4264 * bug fix: Pretty printing backquoted forms with unquotations in the
4265 argument list position of various code constructs such as LAMBDA
4266 now works correctly. (reported by Paul Dietz)
4267 * bug fix: Pretty printing unquotations no longer loses all
4268 stream position information.
4269 * optimization: performance of string output streams is now less
4270 poor for multiple small sequence writes.
4271 * optimization: performance of CSUBTYPEP in the presence of complex
4272 expressions involving CONS and NOT many times has been improved.
4273 (reported by Paul Dietz)
4274 * ASDF-INSTALL bug fix: now parses *PROXY* properly. (thanks to
4276 * SB-SIMPLE-STREAMS enhancement: simple-streams can now be used as
4277 streams for the REPL, for the debugger, and so on. (thanks to
4279 * DEFINE-CODITION is more efficient. (thanks to Brian Mastenbrook)
4280 * fixed some bugs revealed by Paul Dietz' test suite:
4281 ** the value of the :REHASH-THRESHOLD argument to MAKE-HASH-TABLE
4282 is ignored if it is too small, rather than propagating through
4283 to cause DIVIDE-BY-ZERO or FLOATING-POINT-OVERFLOW errors.
4284 ** extremely complex negations of CONS types were not being
4285 sufficiently canonicalized, leading to inconsistencies in
4287 ** VALUES tranformer lost derived type.
4289 changes in sbcl-0.8.6 relative to sbcl-0.8.5:
4290 * fixed a bootstrapping bug: the build process no longer assumes
4291 that the various BOOLE-related constants have the same value in
4292 host and target lisps. (noted by Paul Dietz' test suite on an
4293 SBCL binary built from CLISP)
4294 * The system can now be dynamically linked on the MIPS platform,
4295 which enables dynamic loading of foreign code from Lisp. (thanks
4296 to Ralf Baechle for discussions on the MIPS ABI)
4297 * The system now records debugging information for its own source
4298 files in a filesystem-position-independent manner, relative to
4299 the "SYS" logical host.
4300 * fixed a compiler bug: MV-LET convertion did not check references
4301 to the "max args" entry point. (reported by Brian Downing)
4302 * tweaked disassembly notes to be less confident about proclaiming
4303 some instruction as an LRA. (thanks to Brian Downing)
4304 * contrib update: SB-ACLREPL is now threadsafe; multiple listeners
4305 now each have their own history, command character, and other
4306 characteristics. (thanks to David Lichteblau)
4307 * fixed some bugs revealed by Paul Dietz' test suite:
4308 ** compiler failure in compiling LOGAND expressions including a
4310 ** Implementation of ASH-MOD32 on X86 and PPC did not work for the
4311 shift greater than 32.
4312 ** FLUSH-DEST did not mark blocks for type check regeneration.
4313 ** HANDLER-CASE failed to accept declarations in handler clauses
4314 in some circumstances.
4316 changes in sbcl-0.8.5 relative to sbcl-0.8.4:
4317 * New code in contrib/sb-introspect (still probably not entirely
4318 stable yet) provides some support for smart Lisp development
4319 environments like SLIME.
4320 * The conditions signalled for errors occurring when loading .fasl
4321 files have been systematized (inheriting from SB-EXT:INVALID-FASL)
4322 in a way which should help ASDF recover gracefully.
4323 * The REQUIRE/PROVIDE behavior of *MODULE-PROVIDER-FUNCTIONS*
4324 stuff has been cleaned up. If you code contrib/ stuff, this might
4325 affect you, and you can look at contrib/README, contrib/STANDARDS,
4326 and/or the 0.8.4.27 diff to check.
4327 * In full calls the compiler now does not generate checks for declared
4328 argument types for all arguments.
4329 * various threading fixes
4330 ** and some experimental patches which didn't make it into
4331 the main tree for this release, but which are shipped in
4332 contrib/experimental-thread.patch as a possible fix for some
4333 failures (deadlock, spinning...) in GC-intensive multithreaded
4335 * fixed PPC build problem (source code incompatibility of different
4336 library versions): added offsetof() hackery which attempts to divine
4337 where glibc maintainers put uc_mcontext today
4338 * fixed bug 282: compiler does not trust type assertions while passing
4339 arguments to a full call.
4340 * fixed bug 261: compiler allows NIL or "no value" to be accepted for
4341 &OPTIONAL VALUES type parameter.
4342 * fix bug 214: algorithm for noting rejected templates is now more
4343 similar to that of template seletion. (also reported by rydis on
4345 * fixed bug 141b: printing backquoted information readably and prettily
4346 inserts a space where necessary.
4347 * bug fix: obviously wrong type specifiers such as (FIXNUM 1) or
4348 (CHARACTER 10) are now reported as errors, rather than propagated
4349 as unknown types. (reported by piso on #lisp)
4350 * bug fix: the :IF-EXISTS argument to OPEN now behaves correctly
4351 with values NIL and :ERROR. (thanks to Milan Zamazal)
4352 * fixed bug 191c: CLOS now does proper keyword argument checking as
4353 described in CLHS 7.6.5 and 7.6.5.1.
4354 * bug fix: LOOP forms using NIL as a for-as-arithmetic counter no
4355 longer raise an error; further, using a list as a for-as-arithmetic
4356 counter now raises a meaningful error.
4357 * fixed bug 213a: even fairly unreasonable CONS type specifiers are
4358 now understood by sequence creation functions such as MAKE-SEQUENCE
4360 * fixed bug 46k: READ-BYTE now signals an error when asked to read from
4361 a STRING-INPUT-STREAM.
4362 * compiler enhancement: SIGNUM is now better able to derive the type
4364 * type declarations inside WITH-SLOTS are checked. (reported by
4366 * fixed some bugs revealed by Paul Dietz' test suite:
4367 ** incorrect optimization of TRUNCATE for a positive first
4368 argument and negative second.
4369 ** compiler failure in let-convertion during flushing dead code.
4370 ** compiler failure while deriving type of TRUNCATE on an
4371 interval, containing 0.
4372 ** ASH of a negative bignum by a negative bignum count now returns
4374 ** intersection of CONS types now canonicalizes properly, fixing
4375 inconsistencies in SUBTYPEP.
4377 changes in sbcl-0.8.4 relative to sbcl-0.8.3:
4378 * incompatible change: The --disable-debugger command line
4379 option now clobbers the debugger at a more fundamental
4380 level, by redefining #'INVOKE-DEBUGGER instead of by
4381 rebinding *DEBUGGER-HOOK*. The main difference is that BREAK
4382 is specified by ANSI to ignore *DEBUGGER-HOOK* and
4383 INVOKE-DEBUGGER regardless. Under the old system, BREAK would
4384 enter the debugger REPL and then suffer recursive errors
4385 because *DEBUG-IO* is also messed up in --disable-debugger mode;
4386 while under the new system, BREAK in --disable-debugger mode
4387 terminates the system just as an unhandled error would.
4388 * fixed compiler performance when processing loops with a step >1;
4389 * bug fix: DOCUMENTATION now retrieves generic function
4390 documentation. Also, DOCUMENTATION and (SETF DOCUMENTATION)
4391 support has been systematized, and now supports the methods
4392 specified by ANSI, along with a default method and a method for
4393 slot documentation. (reported by Nathan Froyd)
4394 * bug fix: effective methods associated with a generic function are
4395 no longer cached over a change of that generic function's method
4396 combination. (reported by Andreas Fuchs)
4397 * bug fix: RUN-PROGRAM now does not fail if some element in $PATH
4398 names a non-existent directory. (thanks to Andreas Fuchs)
4399 * bug fix: ROUND and TRUNCATE could, under certain circumstances on
4400 the PPC platform, lead to stack corruption; this has been fixed.
4401 (reported by Rainer Joswig)
4402 * bug fix: ASH on an (UNSIGNED-BYTE 32) with a shift of -32 or lower
4403 no longer ever returns 1 instead of 0. (thanks to Lars Brinkhoff)
4404 * fixed bug 285: TRUNCATE on bignum arguments, and indeed bignum
4405 arithmetic in general, is now much more reliable on the PPC
4407 * bug fix: LOGCOUNT on (UNSIGNED-BYTE 64) objects on the Alpha
4408 platform now returns the right answer.
4409 * optimization: restored some effective method precomputation in
4410 CLOS (turned off by an ANSI fix in sbcl-0.8.3); the amount of
4411 precomputation is now tunable.
4412 * optimization: compiler-internal data structure use has been
4413 reviewed, and changes have been made that should improve the
4414 performance of the compiler by about 20%.
4415 * optimization: performance of FILL (and :INITIAL-ELEMENT) on
4416 simple-base-strings and simple-bit-vectors is improved.
4417 * optimization: the optimization of 32-bit logical and arithmetic
4418 functions introduced in version 0.8.3 on the x86 has been
4419 implemented on the mips, ppc and sparc platforms; an
4420 implementation of the same facility, but for 64-bit arithmetic,
4421 has been added for the alpha.
4422 * microoptimization: the compiler is better able to make use of the
4423 x86 LEA instruction for multiplication by constants.
4424 * bug fix: in some situations compiler did not report usage of
4425 generic arithmetic in (SPEED 3) policy.
4426 * bug 145b fix: compiler used wrong type specifier while converting
4427 MEMBER-types to numeric.
4428 * bug fix: COMPILE-FILE must bind *READTABLE*. (reported by Doug
4430 * bug fix: (SETF AREF) on byte-sized-element arrays with constant
4431 index argument now works properly on the Alpha platform.
4432 * bug fix: floating point exception treatment on the Alpha platform
4434 * bug fix: FILE-POSITION works much better on string input and
4435 output streams. (thanks to Nikodemus Siivola)
4436 * bug fix: many threading/garbage collection symptoms sorted.
4437 SB-THREAD:INTERRUPT-THREAD now safe to call on a thread that
4438 might be pseudo-atomic.
4439 * internal change: Stopping for GC is now done with signals not
4440 ptrace. GC is now done in whichever thread wanted it, instead of
4442 * bug fix: GC hooks (missing since 0.8) reinstated, so finalizers
4444 * bug fix: result form in DO is not contained in the implicit
4446 * incompatible change: ICR structure is changed; the value part of
4447 CONTINUATION is now called LVAR; corresponding functions are
4448 renamed (e.g. SB-C::CONTINUATION-TYPE has become SB-C::LVAR-TYPE).
4449 * added type deriver for ISQRT (thanks to Robert E. Brown).
4450 * bug fix: better support for loading from the command line when an
4451 initialization file sets (READTABLE-CASE *READTABLE*). (thanks
4453 * fixed some bugs revealed by Paul Dietz' test suite:
4454 ** the RETURN clause in LOOP is now equivalent to DO (RETURN ...).
4455 ** ROUND and FROUND now give the right answer when given very
4456 small float arguments.
4457 ** (FLOAT X) for X of type DOUBLE-FLOAT now returns X in all
4459 ** optimizer for (EXPT X 0) did not work for X not of type FLOAT.
4460 ** (GCD 0 <negative-integer>) returned <negative-integer>.
4461 ** LCM should return a non-negative integer.
4462 ** PARSE-INTEGER returned the index of a terminator instead of the
4463 upper bounding index of a substring in case :JUNK-ALLOWED NIL.
4464 ** PARSE-INTEGER returned an incorrect index being applied to a
4466 ** LCM with two arguments of 0 returns 0 rather than signalling
4468 ** unsigned addition of a 32-bit constant with the high bit set no
4469 longer causes an internal compiler error on the x86.
4470 ** LOGBITP accepts a non-negative bignum as its INDEX argument.
4471 ** compiler incorrectly derived types of DPB and DEPOSIT-FIELD
4472 with negative last argument.
4473 ** byte specifiers with zero size and position no longer cause
4474 an error during type derivation.
4475 ** bignum multiplication on the Alpha platform now returns the
4477 * porting: The system now builds on SuSE AMD64, although it still
4478 generates a 32-bit binary.
4479 * .fasl file incompatibility: The fasl file version number has
4480 been incremented (because of the changes to internal compiler
4481 data structures referred to above).
4483 changes in sbcl-0.8.3 relative to sbcl-0.8.2:
4484 * SBCL now builds and runs on MacOS X (version 10.2), or perhaps
4485 more accurately, on the Darwin kernel running on PowerPC hardware.
4486 (thanks to Brian Mastenbrook, Pierre Mai and Patrik Nordebo)
4487 * Compiler code deletion notes now signal a condition of type
4488 SB-EXT:CODE-DELETION-NOTE (a subtype of SB-EXT:COMPILER-NOTE) with
4489 an associated MUFFLE-WARNING restart.
4490 * The compiler now performs limited argument count validation of
4491 constant format strings in FORMAT, and where appropriate in ERROR,
4492 CERROR and WARN. (thanks to Gerd Moellmann)
4493 * New ASDF-INSTALL contrib can be used for automatic download and
4494 installation of third-party Lisp code from CCLAN or other sites
4496 * Threaded builds (:SB-THREAD) now support SB-THREAD:INTERRUPT-THREAD,
4497 which forces another thread to execute a function supplied by the
4499 * bug 75 fix: WITH-OUTPUT-TO-STRING (and MAKE-STRING-OUTPUT-STREAM)
4500 now accept and act upon their :ELEMENT-TYPE keyword argument.
4501 (reported by Martin Atzmueller, Edi Weitz)
4502 * bug fix: FILE-POSITION now accepts position designators up to
4503 ARRAY-DIMENSION-LIMIT or the extreme of the off_t range, whichever
4504 is the greater. (thanks to Patrik Nordebo)
4505 * bug fix: MAKE-ARRAY ignored :INITIAL-CONTENTS NIL. (reported by
4506 Kalle Olavi Niemitalo)
4507 * bug fix: the CLASS-PROTOTYPE of the GENERIC-FUNCTION class is now
4508 printable. (reported by Eric Marsden)
4509 * bug fix in sb-posix: mmap() now works on systems with a 64-bit
4510 off_t, including Darwin and FreeBSD. (thanks to Andreas Fuchs)
4511 * x86 bug fix in control stack exhaustion checking: now shows backtrace
4512 * bug fix in WITH-TIMEOUT: now the body can have more than one form.
4513 (thanks to Stig Sandoe)
4514 * bug fix in READ-SEQUENCE: READ-SEQUENCE following PEEK-CHAR or
4515 UNREAD-CHAR now correctly includes the unread character in the
4516 target sequence. (thanks to Gerd Moellmann)
4517 * bug fix in threaded builds: the system can now be suspended and
4518 resumed by shell job control with minimal disruption.
4519 * bug fixes in times and timezones >2038AD
4520 * better handling of "where is GNU make?" problem in build scripts
4521 (thanks to Nikodemus Siivola)
4522 * new optimization: inside a named function any reference to a
4523 function with the same name is considered to be a self-reference;
4524 this behaviour is controlled with SB-C::RECOGNIZE-SELF-CALLS
4525 optimization quality.
4526 * new optimization on x86: logical functions and + now have
4527 optimized (UNSIGNED-BYTE 32) versions, which are automatically
4528 used when the result is truncated to 32 bits.
4529 * VALUES declaration is partially enabled.
4530 * fixes in SB-GROVEL (thanks to Andreas Fuchs)
4531 * fixed some bugs revealed by Paul Dietz' test suite:
4532 ** The system now obeys the constraint imposed by
4533 UPGRADED-ARRAY-ELEMENT-TYPE that the upgraded array element
4534 types form a lattice under type intersection.
4535 ** FFLOOR, FTRUNCATE, FCEILING and FROUND work with integers.
4536 ** ASSOC now ignores NIL elements in an alist.
4537 ** CEILING now gives the right answer with MOST-NEGATIVE-FIXNUM
4538 and (1+ MOST-POSITIVE-FIXNUM) answers.
4539 ** The addition of a method with invalid qualifiers to a generic
4540 function does not cause an error to be signalled immediately;
4541 a warning is signalled, and the error is generated only on
4542 calling the generic function.
4543 * changed .fasl file version number, in part to add type codes for
4544 new array subtypes UNSIGNED-BYTE 7, 15, 29, and 31 mandated by
4545 obscure ANSI requirements
4547 changes in sbcl-0.8.2 relative to sbcl-0.8.1:
4548 * fixed bug 148: failure to inline-expand a local function left
4549 garbage, confusing the compiler.
4550 * fixed bugs 3cd: structure slot readers perform type check if the
4551 slot can have an invalid value (i.e. it is either not initialized
4552 or can be written with a less specific slot writer).
4553 * bug fix: the compiler now traps array references to elements off
4554 the end of an array; previously, the bounds checking in some
4555 circumstances could go off-by-one.
4556 * improved MACHINE-VERSION, especially on Linux (thanks to Lars
4558 * type declarations for array element types now obey the description
4559 on the CLHS page "Declaration TYPE", as per discussions on
4560 sbcl-help around 2003-05-08. This means that a declaration
4561 (TYPE (ARRAY FOO) BAR) means that, within the scope of the
4562 declaration, all references to BAR will be asserted or assumed
4563 (with THE, so dependent on compiler policy) to involve objects of
4564 type FOO. Note that no such declaration is implied in
4565 (MAKE-ARRAY .. :ELEMENT-TYPE 'FOO).
4566 * declared types of functions from the "Conditions"
4567 chapter. (reported by Paul Dietz)
4568 * bug fix: CERROR accepts a function as its first argument.
4569 * bug fix: NTH an NTHCDR accept a bignum as index
4570 arguments. (reported by Adam Warner)
4571 * optimization: character compare routines now optimize comparing
4572 against a constant character. (reported by Gilbert Baumann)
4573 * bug fix: (SETF AREF) on byte-sized-element arrays with constant index
4574 argument now works properly on the MIPS platform.
4575 * fixed compiler failure on (TYPEP x '(NOT (MEMBER 0d0))).
4576 * repeated evaluation of the same DEFSTRUCT, a slot of which is
4577 declared to have a functional type, does not cause an error
4579 * fixed bug: sometimes MAKE-INSTANCE did not work with classes with
4580 many :DEFAULT-INITARGS. (reported by Istvan Marko)
4581 * fixed bug: if last continuation of a deleted block has a
4582 destination, this destination should be deleted too. (reported by
4584 * fixed a bug in the bootstrap process: the host compiler's values
4585 of ARRAY-DIMENSION-LIMIT and ARRAY-TOTAL-SIZE-LIMIT no longer leak
4586 into the newly-built SBCL. (reported by Eric Marsden on #lisp,
4587 test case from Patrik Nordebo)
4588 * improved the ability of the disassembler on the PPC platform to
4589 provide helpful disassembly notes.
4590 * SB-MOP:CLASS-PROTOTYPE on built-in-classes returns an instance of
4591 the class in more cases than previously.
4592 * bug fix: FILE-POSITION now understands :START and :END for
4593 STRING-INPUT-STREAMs. (thanks to Nikodemus Siivola)
4594 * bug fix: (SIGNED-BYTE 8) streams no longer return (UNSIGNED-BYTE
4595 8) data. (thanks to David Lichteblau)
4596 * bug fix: it is possible to add a method to a generic function
4597 without lambda list.
4598 * bug fix: reader failed to signal END-OF-FILE inside an
4599 object representation. (reported by Nikodemus Siivola)
4600 * fixed some bugs revealed by Paul Dietz' test suite:
4601 ** LAST and [N]BUTLAST should accept a bignum.
4602 ** condition slot accessors are methods.
4603 ** (VECTOR NIL) is a subtype of STRING.
4605 changes in sbcl-0.8.1 relative to sbcl-0.8.0:
4606 * minor incompatible change: some nonsensical specialized lambda
4607 lists (used in DEFMETHOD) which were previously ignored now signal
4609 * minor incompatible change: the system is now aware of the types of
4610 variables in the COMMON-LISP package, and will signal errors for
4611 most violations of these type constraints (where previously they
4612 were silently accepted).
4613 * minor incompatible change: COMPILE-FILE now uses the freedom
4614 afforded (ANSI 3.2.2.3) to use derived function types for
4615 functions defined in the same file. This also permits the system
4616 to warn on static type mismatches and function
4617 redefinition. (Currently it does not work with high DEBUG level.)
4618 * minor incompatible change: VALUES declaration is disabled.
4619 * When issuing notes, the compiler now signals a condition of type
4620 SB-EXT:COMPILER-NOTE, and provides an associated MUFFLE-WARNING
4621 restart for use in user handlers. It is expected that the
4622 COMPILER-NOTE condition will eventually become a condition
4623 supertype to a hierarchy of note types, which will then be
4624 handleable in a similar fashion. However, at the moment, no such
4625 note subtypes yet exist. (SB-INT:SIMPLE-COMPILER-NOTE exists,
4626 but it's an implementation detail, not a classification for the
4628 * Changes in type checking closed the following bugs:
4629 ** type checking of unused values (192b, 194d, 203);
4630 ** template selection based on unsafe type assertions (192c, 236);
4631 ** type checking in branches (194bc).
4632 * A short form of VALUES type specifier has ANSI meaning (it has
4633 increased the number of situations when SBCL cannot perform type
4635 * fixed bug in DEFSTRUCT: once again, naming structure slots with
4636 keywords or constants is permissible.
4637 * STREAM-READ-SEQUENCE and STREAM-WRITE-SEQUENCE now have methods
4638 defined on the relevant FUNDAMENTAL-BINARY-{INPUT,OUTPUT}-STREAM
4639 classes. (thanks to Antonio Martinez)
4640 * improved ANSIness in DESCRIBE: The DESCRIBE function no longer
4641 outputs FRESH-LINE or TERPRI, and no longer converts its stream
4642 argument to a pretty-print stream. Instead, it leaves any such
4643 operations to DESCRIBE-OBJECT methods.
4644 * bug fix: APROPOS now respects the EXTERNAL-ONLY flag. (reported
4646 * bug fix: NIL is now a valid destructuring argument in DEFMACRO
4647 lambda lists. (thanks to David Lichteblau)
4648 * bug fix: Defining a generic function with a :METHOD-CLASS being a
4649 subclass of STANDARD-METHOD no longer causes stack exhaustion.
4650 (thanks to Gerd Moellmann)
4651 * fixed bug 246: increased compilation speed of long
4652 MULTIPLE-VALUE-BIND (and likewise of NTH-VALUE with a constant
4654 * a contributed module implementing COMPILER-LET and MACROEXPAND-ALL
4656 * DEFCONSTANT now throws a condition of type
4657 SB-EXT:DEFCONSTANT-UNEQL if it is being asked to redefine a
4658 constant to a non-EQL value; CONTINUE and ABORT restarts
4659 respectively change and preserve the value.
4660 * fixed bug 63: The code walker, part of the implementation of CLOS,
4661 is now better at handling symbol macros.
4662 * bug fix: There is no longer an internal implementation type named
4663 CL:LENGTH. (reported by Raymond Toy)
4664 * bug fix: In macro-like defining macros/special operators the
4665 implicit block does not enclose the lambda list.
4666 * fixed bugs 10 and 43: Bare VALUES, AND, OR and MEMBER symbols (not
4667 enclosed in parentheses) are not suitable as type specifiers, and
4668 their use properly signals an error now.
4669 * bug fix: An argument count mismatch for a type specifier in code
4670 being compiled no longer causes an unhandled error at compile
4671 time, but signals a compile-time warning.
4672 * fixed simple vector readable printing
4673 * bug fix: DESCRIBE takes more care over whether the class
4674 precedence list slot of a class is bound before accessing it.
4675 (reported by Markus Krummenacker)
4676 * bug fix: FORMATTER can successfully compile pretty-printer format
4677 strings which use variants of the ~* directive inside.
4678 * bug fix: SEARCH now applies its TEST predicate to the elements of
4679 the arguments in the correct order. (thanks to Wolfhard Buss)
4680 * fixed bug 235b: The compiler uses return types of MAPCAR and friends
4681 in type inference. (thanks to Robert E. Brown)
4682 * bug fix: Reading in symbols with an explicit package name of ""
4683 (e.g. '||::FOO) now works correctly. (reported by Henrik Motakef)
4684 * fixed some bugs revealed by Paul Dietz' test suite:
4685 ** NIL is now allowed as a structure slot name.
4686 ** Arbitrary numbers, not just REALs, are allowed in certain
4687 circumstances in LOOP for-as-arithmetic clauses.
4688 ** Multiple class redefinitions before slot access no longer
4689 causes a type error.
4690 ** (SETF FIND-CLASS) now accepts NIL as an argument to remove the
4691 association between the name and a class.
4692 ** Generic functions with non-standard method-combination and over
4693 five methods all of which return constants no longer return NIL
4694 after the first few invocations. (thanks to Gerd Moellmann)
4695 ** CALL-NEXT-METHOD with no arguments now passes the original
4696 values of the arguments, even in the presence of assignment.
4697 ** Functions [N]SUBST*, LAST, NRECONC, [N]SUBLIS may return any
4699 ** DISASSEMBLE works with closures and funcallable instances.
4700 ** ADD-METHOD now returns the generic function, not the new method.
4701 ** FIND-METHOD signals an error if the lengths of the specializers
4702 is incompatible with the generic function, even if the ERRORP
4704 ** TYPE-OF returns recognizeable subtypes of all built-in-types of
4705 which its argument is a member.
4706 ** DEFCLASS only redefines the class named by its class-name
4707 argument if that name is the proper name of the class;
4708 otherwise, it creates a new class.
4709 ** SLOT-UNBOUND now correctly initalizes the CELL-ERROR-NAME slot
4710 of the UNBOUND-SLOT condition to the name of the slot.
4711 ** (SETF (AREF bv 0) ...) did not work for bit vectors.
4712 ** SLOT-UNBOUND and SLOT-MISSING now have their return values
4713 treated by SLOT-BOUNDP, SLOT-VALUE, (SETF SLOT-VALUE) and
4714 SLOT-MAKUNBOUND in the specified fashion.
4716 changes in sbcl-0.8.0 relative to sbcl-0.8alpha.0
4717 * SBCL now builds using CLISP (version of late April 2003 from CVS) as
4718 cross-compilation host. As a consequence, we can now bootstrap our
4719 way up to SBCL starting with a bare gcc toolchain and human-readable
4720 source code (first the source to CLISP, then the source to SBCL).
4721 * A contributed module containing a partial implementation of the
4722 simple-streams interface has been included. (thanks to Rudi
4724 * A contributed module implementing the RFC1321 Message Digest
4725 Algorithm, known as MD5, has been included.
4726 * minor incompatible change: The :NEGATIVE-ZERO-IS-NOT-ZERO feature
4727 no longer has any effect, as the code controlled by this feature
4728 has been deleted. (As far as we know, no-one has ever built using
4729 this feature, and its semantics were confused in any case).
4730 * minor incompatible change: As a consequence of making SLOT-EXISTS-P
4731 work on conditions (as required by the ANSI specification),
4732 SLOT-VALUE, (SETF SLOT-VALUE) and SLOT-BOUNDP likewise have the
4733 expected behaviour on conditions. Users should note, however,
4734 that such behaviour is not required by the ANSI specification,
4735 and so use of this behaviour may render their code unportable.
4736 * fixed some bugs revealed by Paul Dietz' test suite:
4737 ** the GENERIC-FUNCTION type is no longer disjoint from FUNCTION
4739 ** &ENVIRONMENT parameter in macro lambda list is bound first.
4740 ** SXHASH on condition objects no longer returns NIL.
4741 ** :ALLOCATION :CLASS slots are better treated; their values are
4742 updated on class redefinition, and initforms inherited from
4743 superclasses are applied.
4744 ** REMOVE-METHOD returns its generic function argument even when
4745 no method was removed.
4746 ** SHARED-INITIALIZE now initializes the values of the requested
4747 slots, including those with :ALLOCATION :CLASS.
4748 ** ALLOCATE-INSTANCE now works on structure classes defined via
4749 DEFSTRUCT (and not just by those from DEFCLASS :METACLASS
4751 ** SLOT-EXISTS-P now works on conditions, as well as structures
4753 ** MAKE-LOAD-FORM now has the required methods on
4754 STRUCTURE-OBJECT, CONDITION and STANDARD-OBJECT.
4755 ** MAKE-LOAD-FORM-SAVING-SLOTS no longer returns a special
4756 keyword, and now implements the SLOT-NAMES argument.
4757 ** methods with &OPTIONAL arguments no longer allow too many
4758 arguments to be passed in the call without error.
4759 ** DEFGENERIC now checks that the :ARGUMENT-PRECEDENCE-ORDER
4760 option is consistent with the required arguments of the generic
4761 function lambda list.
4762 * bug fix: REQUIRE accepts a string designator. (Thanks to
4764 * bug fix: SB-MOP:DIRECT-SLOT-DEFINITION-CLASS and
4765 SB-MOP:EFFECTIVE-SLOT-DEFINITION-CLASS now have the
4766 specified-by-AMOP lambda list of (CLASS &REST INITARGS).
4767 * bug fix: The compiler now checks for duplicated variables in macro
4769 * bug fix: SETQ on globals returns the correct value.
4770 * fixed bug 47.d: (DEFGENERIC IF (X)) now signals a PROGRAM-ERROR,
4771 not a COMPILER-ERROR (followed by some other strange error on
4772 choosing the CONTINUE restart).
4773 * bug fix: make.sh and friends are now more consistent in the way that
4774 they look for GNU "make".
4776 changes in sbcl-0.8alpha.0 relative to sbcl-0.7.14
4777 * experimental native threads support (on x86 Linux >=2.4 only).
4778 This is not compiled in by default: you need to add :SB-THREAD to
4779 the target features. See the "Beyond ANSI" chapter of the manual
4781 * fix for longstanding nonANSIism: The old distinction between
4782 CL:CLASS objects and SB-PCL:CLASS objects has been eliminated.
4783 The return value from CL:FIND-CLASS is now a CLOS class, and
4784 likewise that of CL:CLASS-OF; CL:BUILT-IN-CLASS,
4785 CL:STRUCTURE-CLASS and CL:STANDARD-CLASS name CLOS classes.
4786 * An interface to the MetaObject Protocol, as described in Kiczales,
4787 des Rivieres and Bobrow's "The Art of the Metaobject Protocol",
4788 MIT Press, 1991, is available from the SB-MOP package.
4789 * incompatible change: the SB-PCL package should now be considered
4790 a private implementation detail, and no longer a semi-private MOP
4792 * minor incompatible change: due to rearrangement for threads, the
4793 control stack and binding stack are now allocated at arbitrary
4794 addresses instead of being hardcoded per-port. Users affected by
4795 this probably have to be doing advanced things with shared
4796 libraries, and will know who they are.
4797 * minor incompatible change: Previously, all --eval forms used were
4798 processed with READ before any of them were processed with EVAL.
4799 Now each --eval form is processed with both READ and EVAL before
4800 the next --eval form is processed. (Thus package operations like
4801 sbcl --eval "(defpackage :foo)" --eval "(print 'foo::bar)" now
4802 work as the user might reasonably expect.)
4803 * minor incompatible change: *STANDARD-INPUT* is now only an
4804 INPUT-STREAM, not a BIDIRECTIONAL-STREAM. (thanks to Antonio
4806 * minor incompatible change: Y-OR-N-P is now character-oriented,
4807 not line oriented. Also, YES-OR-NO-P now works without errors.
4808 (thanks to Antonio Martinez)
4809 * sb-aclrepl module improvements: an integrated inspector, added
4810 repl features, and a bug fix to :trace command.
4811 * Known functions, which cannot be open coded by the backend, are
4812 considered to be able to check types of their arguments. (fixing
4813 a bug report by Nathan J. Froyd)
4814 * fixed a bug in computing method discriminating functions: It is
4815 now possible to define methods specialized on classes which have
4816 forward-referenced superclasses. (thanks to Gerd Moellmann)
4817 * fixed evaluation order in optional entries (reported by Gilbert
4819 * SB-MOP:ENSURE-CLASS-USING-CLASS now takes its arguments in the
4820 specified-by-AMOP order of (CLASS NAME &REST ARGS &KEY).
4821 * SB-MOP:COMPUTE-EFFECTIVE-SLOT-DEFINITION now takes the
4822 required-by-AMOP NAME argument, as well as CLASS and
4823 DIRECT-SLOT-DEFINITIONS. (thanks to Kevin Rosenberg)
4824 * fixed bug 20: DEFMETHOD can define methods using names that are
4825 not the proper names of classes to designate class specializers.
4826 * bug fix: INTERACTIVE-STREAM-P now works on streams associated with
4827 Unix file descriptors, instead of blowing up. (thanks to Antonio
4829 * Garbage collection refactoring: user-visible change is that a
4830 call to the GC function during WITHOUT-GCING will not do garbage
4831 collection until the end of the WITHOUT-GCING. If you were doing
4832 this you were probably losing anyway.
4833 * fixed bug in MEMBER type: (MEMBER 0.0) is not the same as
4834 (SINGLE-FLOAT 0.0 0.0), because of the existence of -0.0 which is
4835 TYPEP the latter but not the former.
4836 * The compiler issues a full WARNING for calls to undefined functions
4837 with names from the CL package.
4838 * MAP-INTO for a vector destination is open coded. (reported by
4839 Brian Downing on c.l.l)
4840 * bug fix: the long form of DEFINE-METHOD-COMBINATION now accepts a
4841 documentation string.
4842 * fixed some bugs revealed by Paul Dietz' test suite:
4843 ** COPY-ALIST now signals an error if its argument is a dotted
4845 ** Condition slots are now accessed more correctly in the presence
4846 of multiple initargs for a given slot.
4847 ** The USE-VALUE, CONTINUE and STORE-VALUE functions now correctly
4848 exclude restarts of the same name associated with a different
4850 ** DEFCLASS of forward-referenced classes with another
4851 forward-referenced class in the superclasses list no longer
4853 ** Condition slots are now initialized once each, not multiple
4854 times. (thanks to Gerd Moellmann)
4855 ** CONVERT-MORE-CALL failed on a lambda list (&KEY). (thanks to
4857 ** &WHOLE and &REST arguments in macro lambda lists are patterns.
4858 ** NSET-EXCLUSIVE-OR does not return extra elements when its
4859 arguments contain duplicated elements.
4860 ** RESTART-CASE understands local macros.
4861 ** RESTART-CASE associates exactly its own restarts with a condition.
4862 ** ENDP in safe mode checks its argument to be of type LIST.
4863 ** COPY-SYMBOL in a threaded build no longer fails when the symbol
4864 in question is unbound.
4865 ** Optimized MAKE-INSTANCE functions no longer cause internal
4866 assertion failures in the presence of duplicate initargs.
4867 ** SLOT-MAKUNBOUND returns the instance acted upon, not NIL.
4868 ** Side-effectful :DEFAULT-INITARGS have their side-effects
4869 propagated even in the ctor optimized implementation of
4871 ** :ALLOW-OTHER-KEYS NIL is now accepted in an initarg list.
4873 changes in sbcl-0.7.14 relative to sbcl-0.7.13:
4874 * a better implementation of SXHASH on (simple) bit vectors,
4875 measured both in execution speed and in distribution of results
4876 over the positive fixnums, has been installed. Likewise, a better
4877 implementation of EQUAL for simple bit vectors is now available.
4878 * fixed CEILING optimization for a divisor of form 2^k.
4879 * fixed bug 240 (emitting extra style warnings "using the lexical
4880 binding of the symbol *XXX*" for &OPTIONAL arguments). (reported
4881 by Antonio Martinez)
4882 * fixed SXHASH, giving different results for NIL depending on type
4883 declarations (SYMBOL or LIST). (thanks to Gerd Moellmann)
4884 * fixed bug in DEFPARAMETER and DEFVAR: they could assign a lexical
4885 variable. (found by Rolf Wester)
4886 * SBCL does not ignore type declarations for special
4887 variables. (reported by rif on c.l.l 2003-03-05)
4888 * some bug fixes in contrib/sb-aclrepl/
4889 * fixed some bugs revealed by Paul Dietz' test suite:
4890 ** a bug in the CONS type specifier, whereby the CAR and CDR
4891 types got intertwined, has been fixed;
4892 ** the type system is now able to reason about the interaction
4893 between INTEGER and RATIO types more completely;
4894 ** APPEND, [N]REVERSE and NRECONC check that those their
4895 arguments, which must be proper lists, are really so;
4896 ** An array specialized to be unable to hold elements has been
4897 implemented, as required -- yes, really -- by ANSI;
4898 ** GETF and GET-PROPERTIES throw a TYPE-ERROR, not a SIMPLE-ERROR,
4899 on malformed property lists;
4901 changes in sbcl-0.7.13 relative to sbcl-0.7.12:
4902 * incompatible packaging change: in line with Unix convention,
4903 SBCL now looks for its core file in /usr/{local/,}lib/sbcl/sbcl.core
4904 if it's not in $SBCL_HOME. It also sets SBCL_HOME to match.
4905 * REQUIRE and PROVIDE are now optionally capable of doing something
4906 useful. See the documentation string for REQUIRE.
4907 * infrastructure for a managed SBCL contrib system: contributed
4908 modules in this release include:
4909 ** the ASDF system definition facility;
4910 ** an interface to the BSD Sockets API;
4911 ** an ACL-like convenience interface to the repl;
4912 (thanks to Kevin Rosenberg)
4913 ** an implementation of ROTATE-BYTE, with efficient implementation
4915 * fixed a bug in LOG, so that LOG of a rational argument near 1 now
4916 gives a closer approximation to the right answer than previously.
4917 (thanks to Raymond Toy)
4918 * fixed bug 157: TYPEP, SUBTYPEP, UPGRADED-ARRAY-ELEMENT-TYPE and
4919 UPGRADED-COMPLEX-PART-TYPE now take (ignored, in all situations)
4920 optional environment arguments, as required by ANSI.
4921 * fixed bugs in other functions taking environment objects, allowing
4922 calls with an explicit NIL environment argument to be compiled
4924 * fixed bug 228: primary return values from
4925 FUNCTION-LAMBDA-EXPRESSION are either NIL or suitable for input to
4926 COMPILE or FUNCTION.
4927 * fixed a bug in DEFSTRUCT: predicates for :NAMED structures with
4928 :TYPE will no longer signal errors on innocuous objects.
4929 * fixed bug 231b: SETQ is better at respecting type declarations in
4930 the lexical environment.
4931 * fixed a bug in DEFCLASS: classes named by symbols with no or
4932 unprintable packages can now be defined.
4933 * fixed a bug in RESTART-BIND: The :TEST-FUNCTION option had been
4934 carelessly renamed to :TEST-FUN. (thanks to Robert E. Brown)
4935 * fixed compiler failure related to checking types of functions.
4936 (reported by Robert E. Brown)
4937 * the compiler is now much more consistent in its error-checking
4938 treatment of bounding index arguments to sequence functions: in
4939 (SAFETY 3) code, errors will be signalled in almost all cases if
4940 invalid sequence bounding indices are passed to functions defined
4941 by ANSI to operate on sequences.
4942 * fixed a bug in the build procedure: documentation of SBCL-specific
4943 packages is now preserved and available in the final Lisp image.
4944 * lifted FDEFINITION lookup out of loops in the implementation of
4945 many list operations. (thanks to Robert E. Brown)
4946 * fixed a bug in the reader: the #n# reader macro now works for
4947 objects of type STANDARD-OBJECT. (reported by Tony Martinez)
4948 * the compiler is now aware that SYMBOL-FUNCTION returns a FUNCTION
4949 and that READ-DELIMITED-LIST returns a LIST. (thanks to Robert
4950 E. Brown and Tony Martinez respectively)
4951 * PCL is now smarter about SLOT-VALUE, (SETF SLOT-VALUE) and
4952 SLOT-BOUNDP: in particular, it is now able to optimize them much
4953 better, and is now not vulnerable to having packages renamed.
4954 Furthermore, a compliance bug has been fixed: SLOT-MISSING is now
4955 always called when a slot is not present in an instance. (thanks
4957 * fixed a bug related to CONCATENATED-STREAMs: PEEK-CHAR will no
4958 longer signal an error on unreading a character following EOF on
4959 the previous constituent stream. (thanks to Tony Martinez)
4960 * fixed some bugs revealed by Paul Dietz' test suite:
4961 ** ARRAY-IN-BOUNDS-P now allows arbitrary integers as arguments,
4962 not just nonnegative fixnums;
4963 ** the logical bit-array operators such as BIT-AND now accept an
4964 explicit NIL for their "opt-arg" argument (to indicate a
4965 freshly-consed result bit-array);
4966 ** ELT now signals an error on an invalid sequence index in safe
4968 ** the type system is now cleverer about negations of numeric
4969 types, and consequently understands the BIGNUM and RATIO types
4971 ** the type system is now cleverer about the interaction between
4972 INTEGER and RATIO types: while bugs still remain, many more
4973 cases are accurately computed;
4974 ** in TYPECASE, OTHERWISE now only introduces an otherwise-clause
4975 if it is in the last clause;
4976 ** CONSTANTLY now correctly returns a side-effect-free function in
4978 ** DECLARE is no longer treated as a special-operator; in
4979 particular, SPECIAL-OPERATOR-P no longer returns T for DECLARE;
4980 * incremented fasl file version number due to the change in the
4981 DEFSTRUCT-SLOT-DESCRIPTION structure.
4983 changes in sbcl-0.7.12 relative to sbcl-0.7.11:
4984 * minor incompatible change: code processed by the "interpreter" or
4985 EVAL now has a compilation optimization policy of (DEBUG 2)
4986 (changed from (DEBUG 1)) to improve debuggability of interactive
4987 development, and to allow the use of the debug RETURN command in
4989 * an experimental implementation of the RETURN command for the
4990 debugger has been included. (thanks to Frederik Kuivinen)
4991 * fixed bug 62: constraints were not propagated into a loop.
4992 * fixed bug in embedded calls of SORT (reported and investigated by
4994 * fixed some bugs revealed by Paul Dietz' test suite:
4995 ** printing and reading of arrays with some dimensions having
4996 length 0 (thanks to Gerd Moellmann);
4997 ** BOA constructor with &AUX argument without a default value does
4998 not cause a type error;
4999 ** CONSTANTP now returns true for all self-evaluating objects.
5001 changes in sbcl-0.7.11 relative to sbcl-0.7.10:
5002 * fixed bug 127: DEFSTRUCT now does not clobber old structure
5003 accessors that are related by inheritance, as specified in the
5004 :CONC-NAME section of the specification of DEFSTRUCT. (thanks to
5005 Valtteri Vuorikoski)
5006 * The compiler is now able to inline functions that were defined in
5007 a complex lexical environment (e.g. inside a MACROLET).
5008 * fixed bug in DESCRIBE, which now works on rank-0 arrays. (thanks
5010 * Support for the upcoming FreeBSD-5.0 release has been included.
5011 (thanks to Dag-Erling Smorgrav)
5012 * fixed bug 219: DEFINE-COMPILER-MACRO no longer has compile-time
5013 effect when it is not in a toplevel context.
5014 * fixed bug 222: DEFMETHOD and SYMBOL-MACROLET interactions now
5015 stand a better chance of being correct. (thanks to Gerd
5017 * fixed bug in COERCE, which now signals an error on coercing a
5018 rational to a bounded real type which excludes the expected
5020 * The compiler is now able to derive types more accurately from the
5021 COERCE and COMPILE functions.
5022 * fixed bug 223: functional binding is considered to be constant
5023 only for symbols in the CL package.
5024 * fixed bug 231: SETQ did not check the type of a variable being set
5025 (reported by Robert E. Brown)
5026 * A new optimization for MAKE-INSTANCE has been included, fixing
5027 various bugs (including relating to :ALLOCATION :CLASS slots and
5028 :DEFAULT-INITARGS over-eager evalueation). (thanks to Gerd
5030 * fixed some LOOP bugs revealed by Paul Dietz' test suite:
5031 ** As required by ANSI, LOOP now disallows anonymous collection
5032 clauses such as COLLECT I in conjunction with aggregate boolean
5033 clauses such as THEREIS (= I 1);
5034 ** LOOP now signals an error when any variable is reused in the
5035 same loop (including the potentially useful construct analogous
5036 to WITH A = 1 WITH A = (1+ A);
5037 ** IT is only a special loop symbol within the first clause of a
5038 conditional loop clause;
5039 ** LOOP with a typed iteration variable over a hashtable now
5040 signals a type error iff it should.
5041 * fixed some other bugs revealed by Paul Dietz' test suite:
5042 ** FILE-STREAM now names the class previously known as FD-STREAM;
5043 ** in DEFSTRUCT, a bare :CONC-NAME (or a :CONC-NAME with no
5044 argument) no longer signals an error;
5045 ** likewise in DEFSTRUCT, :CONC-NAME NIL now respects the package
5046 of the slot symbol, rather than using the current package
5047 ((:CONC-NAME "") continues to intern the slot's name in the
5049 * incremented fasl file version number, because of the incompatible
5050 change to the DEFSTRUCT-DESCRIPTION structure, and again because
5051 of the new implementation of DEFINE-COMPILER-MACRO.
5053 changes in sbcl-0.7.10 relative to sbcl-0.7.9:
5054 * Support for building SBCL for MIPS platforms running in
5055 little-endian mode has now been checked in, and basic
5056 functionality on said platforms verified.
5057 * minor incompatible change: PCL now records the pathname of a file
5058 in which methods and the like are defined, rather than its
5060 * minor incompatible change: TRUENAME now considers the truename of
5061 a file naming a directory to be the pathname with :DIRECTORY
5062 component indicating that directory.
5063 * minor incompatible change: a NAMED clause in the extended form of
5064 LOOP no longer causes a BLOCK named NIL to surround the LOOP. The
5065 reason for the previous behaviour is unclear.
5066 * more systematization and improvement of CLOS and MOP conformance
5067 in PCL (thanks to Gerd Moellman and Pierre Mai):
5068 ** the standard ANSI CL generic function NO-NEXT-METHOD is now
5070 ** DEFINE-METHOD-COMBINATION no longer signals an error for
5071 primary methods with no specializers;
5072 ** the MOP generic function GENERIC-FUNCTION-DECLARATIONS is now
5074 ** the Readers for Class Metaobjects methods CLASS-DIRECT-SLOTS
5075 and CLASS-DIRECT-DEFAULT-INITARGS have been implemented for
5076 FORWARD-REFERENCED-CLASSes; error reporting on
5077 CLASS-DEFAULT-INITARGS, CLASS-PRECEDENCE-LIST and CLASS-SLOTS
5079 ** SXHASH on CLOS instances now uses a slot internal to the
5080 instance to return different numbers on distinct instances,
5081 while preserving the same return value through invocations of
5083 ** DEFMETHOD signals errors when methods with longer incongruent
5084 lambda lists are added to generic functions;
5085 ** COMPUTE-CLASS-PRECEDENCE-LIST now has a method specialized on
5086 CLASS, as specified in AMOP;
5087 ** COMPUTE-SLOTS :AROUND now assigns locations sequentially based
5088 on the order returned by the primary method for classes of
5089 class STANDARD-CLASS;
5090 ** DEFINE-METHOD-COMBINATION now works with the :ARGUMENTS option.
5091 * fixed some bugs shown by Paul Dietz' test suite:
5092 ** DOLIST puts its body in TAGBODY;
5093 ** SET-EXCLUSIVE-OR sends arguments to :TEST function in the
5095 ** MULTIPLE-VALUE-SETQ evaluates side-effectful places before
5096 value producing form;
5097 ** if more variables are given to PROGV than values, extra
5098 variables are bound and made to have no value;
5099 ** NSUBSTITUTE on list arguments gets the right answer with
5101 ** ELT signals an error of type TYPE-ERROR when the index argument
5102 is not a valid sequence index;
5103 ** LOOP signals (at macroexpansion time) an error of type
5104 PROGRAM-ERROR when duplicate variable names are found;
5105 ** LOOP supports DOWNTO and ABOVE properly; (thanks to Matthew Danish)
5106 ** FUNCALL of special-operators now cause an error of type
5108 ** PSETQ now works as required in the presence of side-effecting
5109 symbol-macro places;
5110 ** NCONC accepts any object as its last argument;
5111 ** :COUNT argument to sequence functions may be BIGNUM; (thanks to
5113 ** loop-for-as-package does not require a package to be explicitely
5115 ** LOOP WITH now treats NIL in the d-var-spec correctly as an
5117 * fixed bug 166: compiler preserves "there is a way to go"
5118 invariant when deleting code.
5119 * fixed bug 172: macro lambda lists with required arguments after
5120 &REST arguments now cause an error to be signalled. (thanks to
5122 * fixed Entomotomy PEEK-CHAR-WRONGLY-ECHOS-TO-ECHO-STREAM
5123 bug. (thanks to Matthew Danish)
5124 * fixed bug 225: STRING-STREAM is now a class. (reported by Gilbert
5126 * fixed bug 136: CALL-NEXT-METHOD no longer gets confused when
5127 arguments are lexically rebound. (thanks to Gerd Moellmann and
5129 * fixed bug 194: error messages are now more informative when there
5130 is no primary method applicable in a call to a generic
5131 function. (thanks to Gerd Moellmann)
5132 * fixed bug in command line argument checking (thanks to Julian
5134 * fixed bug in COUNT-IF, making it handle :FROM-END correctly
5135 (thanks to Matthew Danish)
5136 * incremented fasl file version number, because of the
5137 SXHASH-related changes in the layout of CLOS data structures
5139 changes in sbcl-0.7.9 relative to sbcl-0.7.8:
5140 * minor incompatible change: The runtime (the Unix executable named
5141 "sbcl") is now much pickier about the .core files it will load.
5142 Essentially it now requires .core files to descend from the same
5143 build (not just the same sources or LISP-IMPLEMENTATION-VERSION)
5144 as the runtime does. (The intent is to prevent the crashes which
5145 can occur, and which can even be reported as mysterious failures,
5146 when people patch the sources or change the build parameters
5147 without changing LISP-IMPLEMENTATION-VERSION, then mix and match
5148 sbcl and .core files.)
5149 * fixed bug: VALUES-LIST is no longer optimized away.
5150 * fixed bug 142: The FFI conversion of C string values to Lisp
5151 string values no longer conses excessively. (thanks to Nathan
5152 Froyd porting Raymond Toy's fix to CMU CL)
5153 * began to systematize and improve MOP conformance in PCL (thanks to
5154 Nathan Froyd, Gerd Moellman and Pierre Mai):
5155 ** SLOT-DEFINITION-ALLOCATION now returns :CLASS, not the class
5157 ** GENERIC-FUNCTION-ARGUMENT-PRECEDENCE-ORDER is now implemented;
5158 ** FINALIZE-INHERITANCE is now called on class finalization;
5159 ** DOCUMENTATION and (SETF DOCUMENTATION) now have the correct
5160 argument precedence order.
5161 * fixed bug 202: The compiler no longer fails on functions whose
5162 derived types contradict their declared type.
5163 * DEFMACRO is implemented via EVAL-WHEN instead of IR1 translation,
5164 so it can be non-toplevel.
5165 * The fasl file version number has changed (because of the new
5166 implementation of DEFMACRO).
5167 * (mostly) fixed bugs 46b and 46c: sequence functions now check, in
5168 safe code, that any length requirement by their type-specifier
5169 argument is valid. The exceptions to this are described in bug
5171 * fixed bugs 46h and 46i: TWO-WAY- and CONCATENATED-STREAM creation
5172 functions now check the types of their inputs as required by ANSI.
5173 * fixed bug 48c: SYMBOL-MACROLET signals PROGRAM-ERROR when an
5174 introduced symbol is DECLAREd to be SPECIAL.
5175 * fixed reading of (COMPLEX DOUBLE-FLOAT) literals from fasl files
5176 * fixed bug: :COUNT argument to sequence functions may be negative
5177 * fixed bug: body of DO-SYMBOLS may contain declarations
5178 * fixed bug: PUSHNEW now evaluates its arguments from left to right
5179 (reported by Paul F. Dietz, fixed by Gerd Moellman)
5180 * fixed bug: PUSH, PUSHNEW and POP now evaluate a place given by a
5181 symbol macro only once
5182 * fixed printing of call frame when argument list is unavailable
5183 * fixed bug: :ALLOW-OTHER-KEYS is an allowed keyword name
5184 * compiler no longer signals WARNING on unknown keyword
5187 changes in sbcl-0.7.8 relative to sbcl-0.7.7:
5188 * A beta-quality port to the mips architecture running Linux,
5189 based on the old CMUCL backend, has been made. It has been tested
5190 on a big-endian kernel, and works sufficiently well to be able to
5191 rebuild itself; it has not been tested in little-endian mode.
5192 * fixed an inconsistency between gencgc.c and purify.c which made
5193 dumping/loading .core files unreliable
5194 * fixed bug 120a: The compiler now deals correctly with IFs where
5195 the consequent is the same as the alternative, instead of
5196 misderiving the return type. (thanks to Alexey Dejneka)
5197 * fixed bug 113: Logical pathnames are now dumpable (the logical
5198 host is resolved at load-time, throwing an error if it is not
5200 * fixed bug 174: FORMAT's error message is slightly clearer when a
5201 non-printing character is used in a format directive.
5202 * fixed several bugs in compiler checking of type declarations, i.e.
5203 violations of the Python "declarations are assertions" principle
5204 (thanks to Alexey Dejneka)
5205 * fixed several bugs in PCL's error checking (thanks to Gerd
5207 * fixed bug: printing of FILE-ERROR (thanks to Antonio
5209 * fixed bug in compilation of functions as first class values
5210 (thanks to Antonio Martinez-Shotton)
5211 * The compiler's handling TYPE-ERRORs which it can prove will
5212 inevitably happen at runtime has been cleaned up and corrected
5213 in several ways. (thanks to Alexey Dejneka)
5214 * improved argument type checking for various basic arithmetic
5215 operations (MAX, +, LOGXOR, etc.) which have had so much TLC
5216 lavished on them in the past that they can be compiled in many
5217 ways in different special cases
5218 * fixed bug 181: compiler checks validity of user supplied type
5220 * cleaned up code flushing in optimization: Function calls which
5221 should signal errors for safety purposes (e.g. which ANSI says
5222 should signal errors when their arguments are of incorrect type)
5223 are no longer optimized away.
5224 * added new extension: SB-DEBUG:BACKTRACE-AS-LIST
5225 * incremented fasl file version number, because changes in the
5226 implementation of sequence functions like COERCE caused
5227 internal utility functions like COERCE-TO-SIMPLE-VECTOR (used
5228 in old inline expansions) to become undefined. (Actually these
5229 changes were later undone, so we might very well be binary
5230 compatible with 0.7.7 after all, but leaving the version number
5231 incremented seemed like the simplest and most conservative
5234 changes in sbcl-0.7.7 relative to sbcl-0.7.6:
5235 * An alpha-quality port to the parisc architecture running Linux,
5236 based on the old CMUCL backend, has been made. This, even more so
5237 than the other backends, should be considered still a work in
5238 progress; known problems include that the Linux kernel in 64-bit
5239 mode does not propagate the correct sigcontext structure to
5240 userspace, and consequently SBCL on a parisc64 kernel will not
5242 * fixed bug 189: The compiler now respects NOTINLINE declarations for
5243 functions declared in FLET and LABELS. (I.e. "LET conversion" is
5244 suppressed.) Also now that the compiler is looking at declarations
5245 in the environment, it checks optimization declarations as well,
5246 and suppresses inlining when (> DEBUG SPEED).
5247 * More fixes have been made to treatment of floating point exception
5248 treatment and other Unix signals. In particular, floating point
5249 exceptions no longer cause Bus errors on the SPARC/Linux platform.
5250 * The detection and handling of control stack exhaustion (infinite
5251 or very deeply nested recursion) has changed. Stack exhaustion
5252 detection is now done by write-protecting pages at the OS level
5253 and applies at all optimization settings; when found, a
5254 SB-KERNEL:CONTROL-STACK-EXHAUSTED condition (subclass of
5255 STORAGE-CONDITION) is signalled, so stack exhaustion can no longer
5256 be caught using IGNORE-ERRORS.
5257 * Bugs 65, 70, and 109 fixed: The compiler now preserves invariants
5258 correctly when transforming recursive LABELS functions to LETs.
5259 (thanks to Alexey Dejneka)
5260 * Bug 48a./b. fixed: SYMBOL-MACROLET now refuses to bind symbols
5261 that are names of constants or global variables.
5262 * Bug fix: DEFINE-ALIEN-ROUTINE now declaims the correct FTYPE for
5263 alien routines with docstrings.
5264 * Bug 184 fixed: Division of ratios by the integer 0 now signals an
5265 error of type DIVISION-BY-ZERO. (thanks to Wolfhard Buss and
5267 * Bug fix: Errors in PARSE-INTEGER are now of type PARSE-ERROR.
5268 (thanks to Eric Marsden)
5269 * Bug fix: COERCE to (COMPLEX FLOAT) of rationals now returns an
5270 object of type (COMPLEX FLOAT). (thanks to Wolfhard Buss)
5271 * Bug fix: The SPARC backend can now compile functions involving
5272 LOGAND and stack-allocated arguments. (thanks to Raymond Toy)
5273 * Bug fix: We no longer segfault on passing a non-FILE-STREAM stream
5274 to a functions expecting a PATHNAME-DESIGNATOR.
5275 * Bug fix: DEFGENERIC now enforces the ANSI restrictions on its
5276 lambda lists. (thanks to Alexey Dejneka)
5277 * Bug fix: changed encoding of PCL's internal MAKE-INSTANCE
5278 functions so that EXPORTing the name of the class doesn't cause
5279 MAKE-INSTANCE functions from earlier DEFCLASSes to get lost (thanks
5280 to Antonio Martinez for reporting this)
5281 * Bug 192 fixed: The internal primitive DATA-VECTOR-REF can now be
5282 constant-folded without failing an assertion. (thanks to Einar
5283 Floystad Dorum for reporting this)
5284 * Bugs 123 and 165 fixed: array specializations on as-yet-undefined
5285 types are now dealt with more correctly by the compiler.
5286 * Minor incompatible change: COMPILE-FILE-PATHNAME now merges its
5287 OUTPUT-FILE argument with its INPUT-FILE argument, resulting in
5288 behaviour analogous to RENAME-FILE. This puts its behaviour more
5289 in line with ANSI's wording on COMPILE-FILE-PATHNAME. (thanks to
5291 * The fasl file version number has changed again. (because of the
5292 bug fix involving the names of PCL MAKE-INSTANCE functions)
5294 changes in sbcl-0.7.6 relative to sbcl-0.7.5:
5295 * bug fix: Floating point exceptions are treated much more
5296 consistently on the x86/Linux and PPC/Linux platforms.
5297 * Array initialization with :INITIAL-ELEMENT is now much faster for
5298 cases when the compiler cannot open code the array creation, but
5299 does know what the UPGRADED-ARRAY-ELEMENT-TYPE will be. General
5300 array accesses have also seen a speed increase.
5301 * bug fix: LOAD :IF-DOES-NOT-EXIST NIL now works when file type is
5302 specified. (This was at the root of some bad interactions between
5303 SBCL and ILISP: thanks to Gregory Wright for diagnosing this and
5305 * bug fix: Internal error arguments for undefined functions are now
5306 computed correctly on the PPC/Linux platform.
5307 * bug fix: Bad &REST syntax is now checked correctly. (thanks to
5308 Raymond Toy's patch for CMU CL)
5309 * Support for the Solaris 9 operating environment has been included
5310 (thanks to Daniel Merritt)
5311 * A very ugly but hopefully complete draft of the missing FFI chapter
5312 of the manual has been created by reformatting the corresponding
5313 CMU CL manual chapter into (currently very ugly and incoherent)
5314 DocBook and bringing it up to date for SBCL behavior. Thus, the
5315 manual is now essentially complete, at least by my extreme
5316 once-and-only-once standards, whereby it's acceptable to refer to
5317 the doc strings of SB-EXT functions as the primary documentation.
5318 * The fasl file version number has changed again, due to cleanup of
5319 (user-invisible) bitrotted stuff. (E.g. *!INITIAL-FDEFN-OBJECTS*
5320 is no longer a static symbol.)
5322 changes in sbcl-0.7.5 relative to sbcl-0.7.4:
5323 * SBCL now builds with OpenMCL (version 0.12) as the
5324 cross-compilation host; also, more progress has been made toward
5325 bootstrapping under CLISP.
5326 * SBCL now runs on the Tru64 (aka OSF/1) operating system on the
5328 * bug 158 fixed: The compiler can now deal with integer loop
5329 increments different from 1; fixing this turned out also to fix
5331 * bug 169 fixed: no more bogus warnings about using lexical bindings
5332 despite the presence of perfectly good SPECIAL declarations (thanks
5333 to David Lichteblau)
5334 * bug 175 fixed: CHANGE-CLASS is now more ANSI-conforming,
5335 accepting initargs. (thanks to Espen Johnsen and Pierre Mai)
5336 * bug 179 fixed: DIRECTORY can now deal with filenames with pattern
5338 * bug 180 fixed: Method combination specifications no longer ignore
5339 the :MOST-SPECIFIC-LAST option. (thanks to Pierre Mai)
5340 * bug fix: Structure type predicate functions now check their argument
5341 count as they should.
5342 * bug fix: Classes with :METACLASS STRUCTURE-CLASS now print
5343 correctly. (thanks to Pierre Mai)
5344 * minor incompatible change: The --noprogrammer option is deprecated
5345 in favor of the new --disable-debugger option, which is very similar.
5346 (The major difference is that it takes effect at a slightly different
5347 time at startup, causing handling of errors in --sysinit and
5348 --userinit files will be affected differently.) The
5349 SB-EXT:DISABLE-DEBUGGER and SB-EXT:ENABLE-DEBUGGER functions have
5350 been added to allow this functionality to be controlled from ordinary
5351 Lisp code. (ENABLE-DEBUGGER should help people like the Debian
5352 maintainers, who might want to run non-interactive scripts to
5353 build SBCL cores which will later be used interactively.)
5354 * minor incompatible change: The LOAD function no longer, when given
5355 a wild pathname to load, loads all files matching that pathname.
5356 Instead, an error of type FILE-ERROR is signalled.
5358 changes in sbcl-0.7.4 relative to sbcl-0.7.3:
5359 * bug 147 fixed: The compiler preserves its block link/count
5360 invariants more correctly now so that it doesn't crash. (thanks
5362 * Dynamic loading of object files in OpenBSD is now supported. (thanks
5364 * COMPILE now works correctly on macros. (thanks to Matthias Hoelzl)
5365 * GET-MACRO-CHARACTER and SET-MACRO-CHARACTER now represent
5366 no-value-for-this-character as NIL (as specified by ANSI).
5367 * HOST-NAMESTRING on physical pathnames now returns a string that is
5368 valid as a host argument to MERGE-PATHNAMES and to MAKE-PATHNAME.
5369 (thanks to Christophe Rhodes)
5370 * The Alpha port handles icache flushing more correctly. (thanks to
5372 * More progress has been made toward bootstrapping under CLISP. (thanks
5373 to Christophe Rhodes)
5374 * The fasl file format has changed again, because dynamic loading
5375 on OpenBSD (which has non-ELF object files) motivated some cleanups
5376 in the way that foreign symbols are transformed and passed around.
5377 * minor incompatible change: The ASCII RUBOUT character, (CHAR-CODE 127),
5378 is no longer treated as whitespace by the reader, but instead as
5379 an ordinary character. Thus e.g. (READ-FROM-STRING "A
\7fB") returns
5380 |A
\7fB|, instead of A as it used to.
5382 changes in sbcl-0.7.3 relative to sbcl-0.7.2:
5383 * ANSI's DEFINE-SYMBOL-MACRO is now supported. (thanks to Nathan
5384 Froyd porting CMU CL code originally by Douglas Thomas Crosher)
5385 * SBCL now runs on the PPC archtiecture under Linux. It actually did
5386 this as of 0.7.1.45, but was left out of the previous news section
5387 (thanks to Dan Barlow)
5388 * SBCL now runs on the Solaris operating system on SPARC architectures
5389 (thanks to Christophe Rhodes's port of the CMUCL runtime)
5390 * cleanups to the runtime on SPARC, both Linux and Solaris, and for
5391 gcc>=3 (thanks to Nathan Froyd and Ingvar Mattsson)
5392 * SPARC backend cleanups, allowing builds of cores optimized for V8
5393 and V9 SPARCS, and also emission of code targeted to a particular
5394 backend chosen at runtime (thanks to Christophe Rhodes and Raymond
5396 * SBCL is closer to bootstrapping under CLISP, thanks to various
5397 fixes by Christophe Rhodes.
5398 * The fasl file format has changed again, to allow the compiler's
5399 INFO database to support symbol macros.
5400 * The user manual (in doc/) is formatted into HTML more nicely.
5401 (thanks to coreythomas)
5402 * The system is smarter about SUBTYPEP relationships, especially
5403 those involving NOT types (including types such as ATOM which are
5404 represented internally using NOT types). Thus SUBTYPEP is less
5405 likely to return (VALUES NIL NIL) in general, and in particular
5406 bugs 58 and (the remaining bits of) bug 50 are fixed. (thanks to
5408 * The fasl file format has changed again, because the internal
5409 representation of types now includes a new slot to support the new
5410 SUBTYPEP-of-NOT-types logic.
5411 * (not a change in the main branch of SBCL, but a related prototype
5412 which can hopefully be merged into the main branch of SBCL in the
5413 future:) Brian Spilsbury has produced a Unicode-enabled variant of
5414 sbcl-0.7.0, available as a patch against sbcl-0.7.0 at
5415 <http://designix.com.au/brian/SBCL/sbcl-0.7.0-unicode.p0.gz>.
5416 * Bug 151 fixed: GET-DISPATCH-MACRO-CHAR now returns NIL for undefined
5417 dispatch macro character combinations. (thanks to Alexey Dejneka)
5418 * Bugfix in PARSE-NAMESTRING: we now correctly parse unix namestrings
5419 that superficially look like logical namestrings correctly.
5420 * USER-HOMEDIR-PATHNAME now returns a (physical) pathname that SBCL
5422 * Bugfix in DEFSTRUCT: BOA constructor lambda lists now accept (name
5423 default supplied-p) for &optional and &key arguments. (thanks to
5426 changes in sbcl-0.7.2 relative to sbcl-0.7.1:
5427 * incompatible change: The compiler is now less aggressive about
5428 tail call optimization, doing it only when (> SPACE DEBUG) or
5429 (> SPEED DEBUG). (This is an incompatible change because there are
5430 programs which relied on the old CMU-CL-style behavior to optimize
5431 away their unbounded recursion which will now die of stack overflow.)
5432 * minor incompatible change: The default BYTES-CONSED-BETWEEN-GCS
5433 for non-GENCGC systems has been increased to 20M (since that
5434 seems much closer to the likely performance optimum for modern
5435 systems than the old 4M value was)
5436 * minor incompatible change: new larger values for *DEBUG-PRINT-LENGTH*
5437 and *DEBUG-PRINT-LEVEL*
5438 * SBCL runs on SPARC systems now. (thanks to Christophe Rhodes' port
5439 of CMU CL's support for SPARC, and various endianness and other
5440 SBCL portability fixes due to Christophe Rhodes and Dan Barlow)
5441 * new syntactic sugar for the Unix command line: --load foo.bar is now
5442 an alternate notation for --eval '(load "foo.bar")'.
5444 ** The system now detects stack overflow and handles it gracefully,
5445 at least for (OR (> SAFETY (MAX SPEED SPACE)) (= SAFETY 3))
5446 optimization settings. (This is a good thing in general, and
5447 its introduction in this version should be particularly timely
5448 for anyone whose code fails because of suppression of tail
5450 ** The system now hunts for the C variable "environ" in a more
5451 devious way, to avoid segfaults when the C library version differs
5452 between compile time and run time. (thanks to Christophe Rhodes)
5453 ** INTEGER-valued CATCH tags now work. (thanks to Alexey Dejneka,
5454 and also to Christophe Rhodes for porting the fix to non-X86 CPUs)
5455 ** The compiler no longer issues bogus style warnings for undefined
5456 classes in the same source file as the DEFCLASSes which defined
5457 them. (thanks to Stig E Sandoe for reporting and Martin Atzmueller
5459 ** fixes in CONDITION class precedence list for undefined function
5460 errors (thanks to Alexei Dejneka)
5461 ** *DEFAULT-PATHNAME-DEFAULTS* is used more consistently and
5462 correctly. (thanks to Dan Barlow)
5463 ** portability fixes aiming at bootstrapping under CLISP (thanks
5464 to Dave McDonald and Christophe Rhodes)
5465 ** FORMAT fixes (thanks to Robert Strandh and Dan Barlow)
5466 ** fixes in type translation and and type inference (thanks to
5468 ** fixes to optimizer internal errors (thanks to Alexei Dejneka)
5469 ** various fixes in the new ports (thanks to Dan Barlow)
5470 * several changes related to debugging:
5471 ** suppression of tail recursion, as noted above
5472 ** stack overflow detection, as noted above
5473 ** The default implementation of TRACE has changed. :ENCAPSULATE T
5474 is now the default. (For some time encapsulation has been more
5475 reliable than the breakpoint-based :ENCAPSULATE NIL
5476 implementation, at least on X86 systems; and I just noticed that
5477 encapsulation also seems closer to the spirit of the ANSI
5480 changes in sbcl-0.7.1 relative to sbcl-0.7.0:
5482 ** SB-ALIEN:LOAD-FOREIGN and SB-ALIEN:LOAD-1-FOREIGN are set
5483 up properly again. (There was a packaging bug in 0.7.0 which
5484 left their definitions in SB-SYS::LOAD-FOREIGN and
5485 SB-SYS::LOAD-1-FOREIGN. LOAD-FOREIGN and LOAD-1-FOREIGN are
5486 vital for most things which interface to C-level interfaces,
5487 like extensions working with sockets or databases or
5488 Perl-compatible regexes or whatever, and the need to fix
5489 this bug is the main reason that 0.7.1 was released so
5491 ** DEFGENERIC is now choosier about the methods it redefines, so that
5492 reLOADing a previously-LOADed file containing DEFGENERICs does
5493 the right thing now. Thus, the Lispy edit/reLOAD-a-little/test
5494 cycle now works as it should. (thanks to Alexey Dejneka)
5495 ** Bug 106 (types (COMPLEX FOO) where FOO is an obscure type) was
5496 fixed by Christophe Rhodes. (He actually submitted this patch
5497 months ago, and I delayed until after 0.7.0.)
5498 ** Bug 111 (internal compiler confusion about runtime checks on
5499 FUNCTION types) was fixed by Alexey Dejneka.
5500 * Some internal cleanups (getting rid of variables which aren't
5501 needed now that the byte interpreter is gone) caused the fasl
5502 file format number to change again.
5504 changes in sbcl-0.7.0 relative to sbcl-0.6.13:
5505 * major incompatible change: The default fasl file extension, i.e. the
5506 default extension for files produced by COMPILE-FILE, has changed
5507 to ".fasl", for all architectures. (No longer ".x86f" and ".axpf".)
5509 ** There are many changes in the implementation of the compiler.
5510 SBCL is now essentially a compiler-only implementation of ANSI
5511 Common Lisp. EVAL still "interprets" a few special cases, but
5512 almost all the interesting cases are handled by creating
5513 a LAMBDA expression, calling COMPILE on it, then calling
5514 FUNCALL on the result.
5515 ** The EVAL-WHEN code has been rewritten to be ANSI-compliant, and
5516 various related bugs (IR1-1, IR1-2, IR1-3, IR1-3a) have gone away.
5517 Since the code is newer, there might still be some new bugs
5518 (though not as many as before Martin Atzmueller's fixes:-). But
5519 the new code is substantially simpler and clearer, and hopefully
5520 any remaining bugs will be simpler, less fundamental, and more
5521 fixable then the bugs in the old code.
5522 ** The revised compiler is still a little unsteady on its feet.
5524 *** The debugging information it produces (particularly the names
5525 of FUNCTION objects) is sometimes much less useful than what
5526 the old compiler produced.
5527 *** The support for inlining FOO when you (DECLAIM (INLINE FOO))
5528 then do (DEFUN FOO ..) in a non-null lexical environment (e.g.
5529 within a MACROLET) has been temporarily weakened.
5530 ** There are new compiler optimizations for various functions:
5531 *** the sequence functions FIND, POSITION, FIND-IF, POSITION-IF,
5532 FIND-IF-NOT, POSITION-IF-NOT, and FILL
5533 *** the math functions TRUNCATE, FLOOR, and CEILING
5534 *** the function-of-all-trades COERCE
5535 Mostly these should be transparent, but there's one
5536 potentially-annoying problem (bug 117): when the compiler
5537 inline-expands a function and does type analysis on the result,
5538 it can create control paths which have type mismatches, and
5539 when it can't prove that those control paths aren't taken,
5540 it will issue WARNINGs about the type mismatches. This is
5541 a particular problem in practice for the new sequence functions.
5542 It's not clear how this should be fixed, and for now, a
5543 workaround is given in the entry for 117 in the BUGS file.
5544 ** (Because of the interaction between the two previous items --
5545 occasional inlining problems and new inline expansions -- some
5546 of the new sequence function optimizations won't really kick in
5547 completely until debugging information, and then inlining, are
5548 straightened out in some future version.)
5549 * minor incompatible changes:
5550 ** As part of a bug fix by Christophe Rhodes to DIRECTORY behavior,
5551 DIRECTORY no longer implicitly promotes NIL slots of its
5552 pathname argument to :WILD. In particular, when you ask for the
5553 contents of a directory (which you used to be able to do without
5554 explicit wildcards, e.g. (DIRECTORY "/tmp/")) you now need to use
5555 explicit wildcards, e.g. (DIRECTORY "/tmp/*.*").
5556 ** changes in behavior that ANSI explicitly defines to be
5557 implementation dependent:
5558 *** The new compiler-only implementation still conforms with ANSI,
5559 but acts a little different than before. Besides the obvious
5560 changes in performance tradeoffs (that the cost per form passed
5561 to EVAL has gone up, and the cost per form executed by EVAL
5562 has gone down), the behavior of the system changes a little
5563 because there are no longer any interpreted function objects.
5564 COMPILED-FUNCTION-P is now synonymous with FUNCTIONP, and
5565 e.g. doing COMPILE on the output of interactive DEFUN is
5567 *** The value of INTERNAL-TIME-UNITS-PER-SECOND has been increased
5569 *** The default for the USE list in MAKE-PACKAGE and DEFPACKAGE
5570 has changed from (:CL) to NIL.
5571 *** The CHAR-NAME of unprintable ASCII characters which, unlike
5572 e.g. #\Newline and #\Tab, don't have names specified in the
5573 ANSI Common Lisp standard, is now based on their ASCII symbolic
5574 names (#\Nul, #\Soh, #\Stx, etc.) The old CMU-CL-style names
5575 (#\Null, #\^a, #\^b, etc.) are still accepted by NAME-CHAR, but
5576 are no longer used for output.
5577 ** changes in internal implementation constants:
5578 *** The default value of *BYTES-CONSED-BETWEEN-GCS* has doubled, to
5579 4 million. (If your application spends a lot of time GCing and
5580 you have a lot of RAM, you might want to experiment with
5581 increasing it even more.)
5582 ** The SB-C-CALL package has been merged into the SB-ALIEN package.
5583 However, almost all old code should still continue to work without
5584 immediate update, as SB-C-CALL is now a (deprecated) nickname
5586 ** Old operator names in the style DEF-FOO are now deprecated in
5587 favor of new corresponding names DEFINE-FOO, for consistency with
5588 the naming convention used in the ANSI standard (DEFSTRUCT, DEFVAR,
5589 DEFINE-CONDITION, DEFINE-MODIFY-MACRO..). This mostly affects
5590 internal symbols, but a few supported extensions like
5591 SB-ALIEN:DEF-ALIEN-FUNCTION are also affected. (So e.g.
5592 DEF-ALIEN-FUNCTION becomes DEFINE-ALIEN-FUNCTION.)
5593 ** The debugger prompt sequence now goes "5]", "5[2]", "5[3]",
5594 etc. as you get deeper into recursive calls to the debugger
5595 command loop, instead of the old "5]", "5]]", "5]]]"
5596 sequence. (I was motivated to do this when squabbles between
5597 ILISP and SBCL left me very deeply nested in the debugger. In the
5598 short term, this change will probably provoke more ILISP/SBCL
5599 squabbles, but hopefully it will be an improvement in the long run.)
5600 ** SB-ALIEN:DEFINE-ALIEN-FUNCTION (also known by the old deprecated
5601 name DEF-ALIEN-FUNCTION) now does DECLAIM FTYPE for the defined
5602 function, since declaiming return types involving aliens is
5603 (1) annoyingly messy to do by hand and (2) vital to efficient
5604 compilation of code which calls such functions.
5605 ** SB-ALIEN:LOAD-FOREIGN and SB-ALIEN:LOAD-1-FOREIGN are no
5606 longer reexported by the SB-EXT package. They're solely useful
5607 for alien code, so it seems more logical that you should get
5608 them from the SB-ALIEN package, not in SB-EXT.
5609 ** :SB-CONSTRAIN-FLOAT-TYPE, :SB-PROPAGATE-FLOAT-TYPE, and
5610 :SB-PROPAGATE-FUN-TYPE are no longer considered to be optional
5611 features. Instead, the code that they used to control is always
5612 built into the system.
5613 * many other bug fixes
5614 ** DEFSTRUCT and DEFCLASS have been substantially updated to take
5615 advantage of the new EVAL-WHEN stuff and to clean them up in
5616 general, and they are now more ANSI-compliant in a number of
5617 ways. Martin Atzmueller is responsible for a lot of this.
5618 ** Besides the cleanups discussed above, Martin Atzmueller fixed
5620 *** fixes in READ-SEQUENCE and WRITE-SEQUENCE
5621 *** correct ERROR type for various file operations
5622 *** some fixes for Lisp streams
5623 *** DEFMETHOD syntax checking
5624 *** changing old weird representation of debug information as
5625 strings (which, among their other deficiencies, don't transform
5626 correctly when you rename packages, and don't change their
5627 print representation when you change things like *PACKAGE*
5628 and *PRINT-LENGTH*) to symbols and lists of symbols
5629 He also made several improvements and fixed several bugs in DESCRIBE.
5630 ** Alexey Dejneka fixed many bugs, including classic bugs and bugs he
5632 *** misbehavior of WRITE-STRING/WRITE-LINE
5633 *** LOOP over keys of a hash table, LOOP bugs 49b and 81 and 103,
5634 and several other LOOP problems as well
5635 *** DIRECTORY when similar filenames are present
5636 *** DEFGENERIC with :METHOD options
5637 *** bug 126, in (MAKE-STRING N :INITIAL-ELEMENT #\SPACE))
5638 *** bug in the optimization of ARRAY-ELEMENT-TYPE
5639 *** argument ordering in FIND with :TEST option
5640 *** mishandled package designator argument in APROPOS-LIST
5641 *** various problems in the backquote readmacro
5642 *** a bug in APROPOS
5643 *** probably some others that I'm not describing very well here,
5644 since the CVS log documents them by reference to sbcl-devel
5645 messages, and the SourceForge archives aren't working well.:-(
5646 ** Dan Barlow improved the Alpha port (and is making progress on the
5647 PPC port, for those of you who think different).
5648 ** Besides the DIRECTORY fixes and changes mentioned elsewhere,
5649 Christophe Rhodes cleaned up the system self-test scripts (in tests/*),
5650 contributed the optimization of FIND-IF-NOT and POSITION-IF-NOT, and
5651 continues to work on the SPARC port (for those of you in a position
5652 to look down upon our little PC-compatible boxes from a great height).
5653 ** PPRINT-LOGICAL-BLOCK now copies the *PRINT-LINES* value on entry
5654 and uses that copy, rather than the current dynamic value, when
5655 it's trying to decide whether to truncate output. Thus e.g.
5656 (let ((*print-lines* 50))
5657 (pprint-logical-block (stream nil)
5659 (let ((*print-lines* 8))
5660 (print (aref possiblybigthings i) stream)))))
5661 should now truncate the logical block only at 50 lines, instead of
5662 often truncating it at 8 lines, as it did before.
5663 * The doc/cmucl/ directory, containing old CMU CL documentation
5664 from the time of the fork, is no longer part of the base system.
5665 SourceForge has shut down its anonymous FTP service, and with it
5666 my original plan for distributing the old CMU CL documentation
5667 there. For now, if you need these files you can download an old
5668 SBCL source release and extract them from it.
5669 * The fasl file version number changed again, for dozens of reasons,
5670 some of which are apparent above.
5672 changes in sbcl-0.6.13 relative to sbcl-0.6.12:
5673 * a port to the Compaq/DEC Alpha CPU, thanks to Dan Barlow
5674 * Martin Atzmueller ported Tim Moore's marvellous CMU CL DISASSEMBLE
5675 patch, so that DISASSEMBLE output is much nicer.
5676 * The code in the SB-PROFILE package now seems reasonably stable.
5677 I still haven't decided what the final interface should look like
5678 (I'd like PROFILE to interact cleanly with TRACE, since both
5679 facilities use function encapsulation) but if you have a need
5680 for profiling now, you can probably use it successfully with
5681 the current CMU-CL-style interface.
5682 * Pathnames and *DEFAULT-DIRECTORY-DEFAULTS* are much more
5683 ANSI-compliant, thanks to various fixes and tests from Dan Barlow.
5684 Also, at Dan Barlow's suggestion, TRUENAME on a dangling symbolic
5685 link now returns the dangling link itself, and for similar
5686 reasons, TRUENAME on a cyclic symbolic link returns the cyclic
5687 link itself. (In these cases the old code signalled an error and
5688 looped endlessly, respectively.) Thus, DIRECTORY now works even
5689 in the presence of dangling and cyclic symbolic links.
5690 * Compiler trace output (the :TRACE-FILE option to COMPILE-FILE)
5691 is now a supported extension again, since the consensus on
5692 sbcl-devel was that it can be useful for ordinary development
5693 work, not just for debugging SBCL itself.
5694 * The default for SB-EXT:*DERIVE-FUNCTION-TYPES* has changed to
5695 NIL, i.e. ANSI behavior, i.e. the compiler now recognizes
5696 that currently-defined functions might be redefined later with
5697 different return types.
5698 * Hash tables can be printed readably, as inspired by CMU CL code
5699 of Eric Marsden and SBCL code of Martin Atzmueller.
5700 * better error handling in CLOS method combination, thanks to
5701 Martin Atzmueller porting Pierre Mai's CMU CL patches
5702 * more overflow fixes for >16Mbyte I/O buffers
5703 * A bug in READ has been fixed, so that now a single Ctrl-D
5704 character suffices to cause end-of-file on character streams.
5705 In particular, now you only need one Ctrl-D at the command
5706 line (not two) to exit SBCL.
5707 * fixed bug 26: ARRAY-DISPLACEMENT now returns (VALUES NIL 0) for
5709 * fixed bug 107 (reported as a CMU CL bug by Erik Naggum on
5710 comp.lang.lisp 2001-06-11): (WRITE #*101 :RADIX T :BASE 36) now
5711 does the right thing.
5712 * The implementation of some type tests, especially for CONDITION
5713 types, is now tidier and maybe faster, due to CMU CL code
5714 originally by Douglas Crosher, ported by Martin Atzmueller.
5715 * Some math functions have been fixed, and there are new
5716 optimizers for deriving the types of COERCE and ARRAY-ELEMENT-TYPE,
5717 thanks to Raymond Toy's work on CMU CL, ported by Martin Atzmueller.
5718 * (There are also some new optimizers in contrib/*-extras.lisp. Those
5719 aren't built into sbcl-0.6.13, but are a sneak preview of what's
5720 likely to be built into sbcl-0.7.0.)
5721 * A bug in COPY-READTABLE was fixed. (Joao Cachopo's patch to CMU
5722 CL, ported to SBCL by Martin Atzmueller)
5723 * DESCRIBE now gives more information in some cases. (Pierre Mai's
5724 patch to CMU CL, ported to SBCL by Martin Atzmueller)
5725 * Martin Atzmueller and Bill Newman fixed some bugs in INSPECT.
5726 * There's a new slam.sh hack to shorten the edit/compile/debug
5727 cycle for low-level changes to SBCL itself, and a new
5728 :SB-AFTER-XC-CORE target feature to control the generation of
5729 the after-xc.core file needed by slam.sh.
5730 * minor incompatible change: The ENTRY-POINTS &KEY argument to
5731 COMPILE-FILE is no longer supported, so that now every function
5732 gets an entry point, so that block compilation looks a little
5733 more like the plain vanilla ANSI section 3.2.2.3 scheme.
5734 * minor incompatible change: SB-EXT:GET-BYTES-CONSED now
5735 returns the number of bytes consed since the system started,
5736 rather than the number consed since the first time the function
5737 was called. (The new definition parallels ANSI functions like
5738 CL:GET-INTERNAL-RUN-TIME.)
5739 * minor incompatible change: The old CMU-CL-style DIRECTORY options,
5740 i.e. :ALL, :FOLLOW-LINKS, and :CHECK-FOR-SUBDIRS, are no longer
5741 supported. Now DIRECTORY always does the abstract Common-Lisp-y
5742 thing, i.e. :ALL T :FOLLOW-LINKS T :CHECK-FOR-SUBDIRS T.
5743 * Fasl file version numbers are now independent of the target CPU,
5744 since historically most system changes which required version
5745 number changes have affected all CPUs equally. Similarly,
5746 the byte fasl file version is now equal to the ordinary
5749 changes in sbcl-0.6.12 relative to sbcl-0.6.11:
5750 * incompatible change: The old SB-EXT:OPTIMIZE-INTERFACE declaration
5751 is no longer recognized. I apologize for this, because it was
5752 listed in SB-EXT as a supported extension, but I found that
5753 its existing behavior was poorly specified, as well as incorrectly
5754 specified, and it looked like too much of a mess to straighten it
5755 out. I have enough on my hands trying to get ANSI stuff to work..
5756 * many patches ported from CMU CL by Martin Atzmueller, with
5757 half a dozen bug fixes in pretty-printing and the debugger, and
5758 half a dozen others elsewhere
5759 * fixed bug 13: Floating point infinities are now supported again.
5760 They might still be a little bit flaky, but thanks to bug reports
5761 from Nathan Froyd and CMU CL patches from Raymond Toy they're not
5762 as flaky as they were.
5763 * The --noprogrammer command line option is now supported. (Its
5764 behavior is slightly different in detail from what the old man
5765 page claimed it would do, but it's still appropriate under the
5766 same circumstances that the man page talks about.)
5767 * The :SB-PROPAGATE-FLOAT-TYPE and :SB-PROPAGATE-FUN-TYPE features
5768 are now supported, and enabled by default. Thus, the compiler can
5769 handle many floating point and complex operations much less
5770 inefficiently. (Thus e.g. you can implement a complex FFT
5772 * The compiler now detects type mismatches between DECLAIM FTYPE
5773 and DEFUN better, and implements CHECK-TYPE more correctly, and
5774 SBCL builds under CMU CL again despite its non-ANSI EVAL-WHEN,
5775 thanks to patches from Martin Atzmueller.
5776 * various fixes to make the cross-compiler more portable to
5777 ANSI-conforming-but-different cross-compilation hosts (notably
5778 Lispworks for Windows, following bug reports from Arthur Lemmens)
5779 * A bug in READ-SEQUENCE for CONCATENATED-STREAM, and a gross
5780 ANSI noncompliance in DEFMACRO &KEY argument parsing, have been
5781 fixed thanks to Pierre Mai's CMU CL patches.
5782 * fixes to keep the system from overflowing internal counters when
5783 it tries to use i/o buffers larger than 16M bytes
5784 * fixed bug 45a: Various internal functions required to support
5785 complex special functions have been merged from CMU CL sources.
5786 (When I was first setting up SBCL, I misunderstood a compile-time
5787 conditional #-OLD-SPECFUN, and so accidentally deleted them.)
5788 * improved support for type intersection and union, fixing bug 12
5789 (e.g., now (SUBTYPEP 'KEYWORD 'SYMBOL)=>T,T) and some other
5790 more obscure bugs as well
5791 * some steps toward byte-compiling non-performance-critical
5792 parts of the system, courtesy of patches from Martin Atzmueller
5793 * Christophe Rhodes has made some debian packages of sbcl at
5794 <http://www-jcsu.jesus.cam.ac.uk/ftp/pub/debian/lisp>.
5795 From his sbcl-devel e-mail of 2001-04-08 they're not completely
5796 stable, but are nonetheless usable. When he's ready, I'd be happy
5797 to add them to the SourceForge "File Releases" section. (And if
5798 anyone wants to do RPMs or *BSD packages, they'd be welcome too.)
5799 * new fasl file format version number (because of changes in
5800 internal representation of (OR ..) types to accommodate the new
5801 support for (AND ..) types, among other things)
5803 changes in sbcl-0.6.11 relative to sbcl-0.6.10:
5804 * Martin Atzmueller pointed out that bugs #9 and #25 are gone in
5806 * bug 34 fixed by Martin Atzmueller: dumping/loading instances works
5808 * fixed bug 40: TYPEP, SUBTYPEP, UPGRADED-ARRAY-ELEMENT-TYPE,
5809 and UPGRADED-COMPLEX-PART-TYPE now work better with of compound
5810 types built from undefined types, e.g. '(VECTOR SOME-UNDEF-TYPE).
5811 * DESCRIBE now works on structure objects again.
5812 * Most function call argument type mismatches are now handled as
5813 STYLE-WARNINGs instead of full WARNINGs, since the compiler doesn't
5814 know whether the function will be redefined before the call is
5815 executed. (The compiler could flag local calls with full WARNINGs,
5816 as per the ANSI spec "3.2.2.3 Semantic Constraints", but right now
5817 it doesn't keep track of enough information to know whether calls
5818 are local in this sense.)
5819 * Compiler output is now more verbose, with messages truncated
5820 later than before. (There should be some supported way for users
5821 to override the default verbosity, but I haven't decided how to
5822 provide it yet, so this behavior is still controlled by the internal
5823 SB-C::*COMPILER-ERROR-PRINT-FOO* variables in
5824 src/compiler/ir1util.lisp.)
5825 * Fasl file format version numbers have increased again, because
5826 support for the Gray streams extension changes the layout of the
5827 system's STREAM objects.
5828 * The Gray subclassable streams extension now works, thanks to a
5829 patch from Martin Atzmueller.
5830 * The full LOAD-FOREIGN extension (not just the primitive
5831 LOAD-FOREIGN-1) now works, thanks to a patch from Martin Atzmueller.
5832 * The default behavior of RUN-PROGRAM has changed. Now, unlike CMU CL
5833 but like most other programs, it defaults to copying the Unix
5834 environment from the original process instead of starting the
5835 new process in an empty environment.
5836 * Extensions which manipulate the Unix environment now support
5837 an :ENVIRONMENT keyword option which doesn't smash case or
5838 do other bad things. The CMU-CL-style :ENV option is retained
5839 for porting convenience.
5840 * LOAD-FOREIGN (and LOAD-1-FOREIGN) now support logical pathnames,
5841 as per Daniel Barlow's suggestion and Martin Atzmueller's patch
5843 changes in sbcl-0.6.10 relative to sbcl-0.6.9:
5845 * A patch from Martin Atzmueller seems to have solved the SIGINT
5846 problem, and as far as we know, signal-handling now works cleanly.
5847 (If you find any new bugs, please report them!)
5848 * The system no longer defaults Lisp source file names to types
5849 ".l", ".cl", or ".lsp", but only to ".lisp".
5850 * The compiler no longer uses special default file extensions for
5851 byte-compiled code. (The ANSI definition of COMPILE-FILE-PATHNAME
5852 seems to expect a single default extension for all compiled code,
5853 and there's no compelling reason to try to stretch the standard
5854 to allow two different extensions.) Instead, byte-compiled files
5855 default to the same extension as native-compiled files.
5856 * Fasl file format version numbers have increased again, because
5857 a rearrangement of internal implementation packages made some
5858 dumped symbols in old fasl files unreadable in new cores.
5859 * DECLARE/DECLAIM/PROCLAIM logic is more nearly ANSI in general, with
5860 many fewer weird special cases.
5861 * Bug #17 (differing COMPILE-FILE behavior between logical and
5862 physical pathnames) has been fixed, and some related misbehavior too,
5863 thanks to a patch from Martin Atzmueller.
5864 * Bug #30 (reader problems) is gone, thanks to a CMU CL patch
5865 by Tim Moore, ported to SBCL by Martin Atzmueller.
5866 * Martin Atzmueller fixed several filesystem-related problems,
5867 including bug #36, in part by porting CMU CL patches, which were
5868 written in part by Paul Werkowski.
5869 * More compiler warnings in src/runtime/ are gone, thanks to
5870 more patches from Martin Atzmueller.
5871 * Martin Atzmueller pointed out that bug 37 was fixed by his patches
5874 changes in sbcl-0.6.9 relative to sbcl-0.6.8:
5876 * DESCRIBE now works on CONDITION objects.
5877 * The debugger now handles errors which arise when trying to print
5878 *DEBUG-CONDITION*, so that it's less likely to fall into infinite
5880 * The build system now uses an additional file, customize-target-features.lisp,
5881 to allow local modifications to the target *FEATURES* list. (The point of
5882 this is that now I can set up a custom configuration, e.g. with :SB-SHOW
5883 debugging features enabled, without having to worry about propagating it
5884 into everyone's system when I do a "cvs update".) When no
5885 customize-target-features.lisp file exists, the target *FEATURES* list
5886 should be constructed the same way as before.
5887 * fixed bugs in DEFCONSTANT ANSI-compatibility:
5888 ** DEFCONSTANT now tests reassignments using EQL, not EQUAL, in order to
5889 warn about behavior which is undefined under the ANSI spec. Note: This
5890 is specified by ANSI, but it's not very popular with programmers.
5891 If it causes you problems, take a look at the new SB-INT:DEFCONSTANT-EQX
5892 macro in the SBCL sources for an example of a workaround which you
5893 might use to make portable ANSI-standard code which does what you want.
5894 ** DEFCONSTANT's implementation is now based on EVAL-WHEN instead of on
5895 pre-ANSI IR1 translation magic, so it does the ANSI-specified thing
5896 when it's used as a non-toplevel form. (This is required in order
5897 to implement the DEFCONSTANT-EQX macro.)
5898 ** (DEFCONSTANT X 1) (DEFVAR X) (SETF X 2) no longer "works".
5899 ** Unfortunately, non-toplevel DEFCONSTANT forms can still do some
5900 funny things, due to bugs in the implementation of EVAL-WHEN
5901 (bug #IR1-3). This probably won't be fixed until 0.7.x. (Fortunately,
5902 non-toplevel DEFCONSTANTs are uncommon.)
5903 * The core file version number and fasl file version number have been
5904 incremented, because the old noncompliant DEFCONSTANT behavior involved
5905 calling functions which no longer exist, and because I also took the
5906 opportunity to chop an unsupported slot out of the DEBUG-SOURCE structure.
5907 * fixed bug 1 (error handling before read-eval-print loop starts), and
5908 redid debugger restarts and related debugger commands somewhat while
5910 ** The QUIT debugger command is gone, since it did something
5911 rather different than the SB-EXT:QUIT command, and since it never
5912 worked properly outside the main toplevel read/eval/print loop.
5913 Invoking the new TOPLEVEL restart provides the same functionality.
5914 ** The GO debugger command is also gone, since you can just invoke
5915 the CONTINUE restart directly instead.
5916 ** The TOP debugger command is also gone, since it's redundant with the
5917 FRAME 0 command, and since it interfered with abbreviations for the
5919 * The system now recovers better from non-PACKAGE values of the *PACKAGE*
5921 * The system now understands compound CONS types (e.g. (CONS FIXNUM T))
5922 as required by ANSI. (thanks to Douglas Crosher's CMU CL patches, with
5923 some porting work by Martin Atzmueller)
5924 * Martin Atzmueller reviewed the CMU CL mailing lists and came back
5925 with a boatload of patches which he ported to SBCL. Now that those
5927 ** The system tries to make sure that its low-priority messages
5928 are prefixed by semicolons, to help people who like to use
5929 syntax highlighting in their ILISP buffer. (This patch
5930 was originally due to Raymond Toy.)
5931 ** The system now optimizes INTEGER-LENGTH better, thanks to more
5932 patches originally written by Raymond Toy.
5933 ** The compiler understands coercion between single-value and
5934 multiple-VALUES type expressions better, getting rid of some very
5935 weird behavior, thanks to patches originally by Robert MacLachlan
5936 and Douglas Crosher.
5937 ** The system understands ANSI-style non-KEYWORD &KEY arguments in
5938 lambda lists, thanks to a patch originally by Pierre Mai.
5939 ** The system no longer bogusly warns about "abbreviated type
5941 ** The compiler gets less confused by inlining and RETURN-FROM,
5942 thanks to some patches originally by Tim Moore.
5943 ** The system no longer hangs when dumping circular lists to fasl
5944 files, thanks to a patch originally from Douglas Crosher.
5945 * Martin Atzmueller also fixed ROOM, so that it no longer fails with an
5946 undefined function error.
5947 * gave up on fixing bug 3 (forbidden-by-ANSI warning for type mismatch
5948 in structure slot initforms) for now, documented workaround instead:-|
5949 * fixed bug 4 (no WARNING for DECLAIM FTYPE of slot accessor function)
5950 * fixed bug 5: added stubs for various Gray stream functions called
5951 in the not-a-CL:STREAM case, so that even when Gray streams aren't
5952 installed, at least appropriate type errors are generated
5953 * fixed bug 8: better reporting of various PROGRAM-ERRORs
5954 * fixed bug 9: IGNORE and IGNORABLE now work reasonably and more
5955 consistently in DEFMETHOD forms.
5956 * removed bug 21 from BUGS, since Martin Atzmueller points out that
5957 it doesn't seem to affect SBCL after all
5958 * The C runtime system now builds with better optimization and many
5959 fewer warnings, thanks to lots of cleanups by Martin Atzmueller.
5961 changes in sbcl-0.6.8 relative to sbcl-0.6.7:
5963 * The system is now under CVS at SourceForge (instead of the
5964 CVS repository on my home machine).
5965 * The new signal handling code has been tweaked to treat register
5966 contents as (UNSIGNED-BYTE 32), as the old CMU CL code did,
5967 instead of (SIGNED-BYTE 32), as the C header files have it. (Code
5968 downstream, e.g. in debug-int.lisp, has implicit dependencies
5969 on the unsignedness of integer representation of machine words,
5970 and that caused the system to bomb out with infinite regress
5971 when trying to recover from type errors involving signed values,
5972 e.g. (BUTLAST '(1 2 3) -1).)
5973 * (BUTLAST NIL) and (NBUTLAST NIL) now return NIL as they should.
5974 (This was one of the bugs Peter Van Eynde reported back in July.)
5975 * The system now uses code inspired by Colin Walters' O(N)
5976 implementation of MAP (from the cmucl-imp@cons.org mailing
5977 list, 2 September 2000) when it can't use a DEFTRANSFORM to
5978 inline the MAP operation, and there is more than one
5979 sequence argument to the MAP call (so that it can't just
5980 do ETYPECASE once and for all based on the type of the
5981 single sequence argument). (The old non-inline implementation
5982 of the general M-argument sequence-of-length-N case required
5983 O(M*N*N) time when any of the sequence arguments were LISTs.)
5984 * The QUIT :UNIX-CODE keyword argument has been renamed to
5985 QUIT :UNIX-STATUS. (The old name still works, but is deprecated.)
5986 * Raymond Wiker's patches to port RUN-PROGRAM from CMU CL to SBCL
5988 * Raymond Wiker's patches to port dynamic loading from Linux to
5989 FreeBSD have been added.
5990 * The BUGS file is now more nearly up to date, thanks in large part
5991 to Martin Atzmueller's review of it.
5992 * The debugger now flushes standard output streams before it begins
5993 its output ("debugger invoked" and so forth).
5994 * The core version number and fasl file version number have both
5995 been incremented, because of incompatible changes in the layout
5997 * FINISH-OUTPUT is now called more consistently on QUIT. (It
5998 used to not be called for a saved Lisp image.)
5999 * Martin Atzmueller's version of a patch to fix a compiler crash,
6000 as posted on sbcl-devel 13 September 2000, has been installed.
6001 * Instead of installing Martin Atzmueller's patch for the
6002 compiler transform for SUBSEQ, I deleted the compiler transform,
6003 and transforms for some similar consing operations.
6004 * A bug in signal handling which kept TRACE from working on OpenBSD
6006 * added enough DEFTRANSFORMs to allow (SXHASH 'FOO) to be optimized
6007 away by constant folding
6008 * The system now defines its address space constants in one place
6009 (in the Lisp sources), and propagates them automatically elsewhere
6010 (through GENESIS and the sbcl.h file). Therefore, patching the
6011 address map is less unnecessarily tedious and error-prone. The
6012 Lisp names of address space constants have also been systematized.
6013 * CVS tags like dollar-Header-dollar have been removed from
6014 the sources, because they have never saved me trouble and
6015 they've been source of trouble working with patches and other
6016 diff-related operations.
6017 * fixed the PROG1-vs.-PROGN bug in HANDLER-BIND (reported by
6018 ole.rohne@cern.ch on cmucl-help@cons.org 2000-10-25)
6020 changes in sbcl-0.6.7 relative to sbcl-0.6.6:
6022 * The system has been ported to OpenBSD.
6023 * The system now compiles with a simple "sh make.sh" on the systems
6024 that it's supported on. I.e., now you no longer need to tweak
6025 text in the target-features.lisp-expr and symlinks in src/runtime/
6026 by hand, the make.sh takes care of it for you.
6027 * The system is no longer so grossly inefficient when compiling code
6028 involving vectors implemented as general (not simple) vectors (VECTOR T),
6029 so code which dares to use VECTOR-PUSH-EXTEND and FILL-POINTER, or
6030 which dares to use the various sequence functions on non-simple
6031 vectors, takes less of a performance hit.
6032 * There is now a primitive type predicate VECTOR-T-P
6033 to test for the (VECTOR T) type, so that e.g.
6034 (DEFUN FOO (V) (DECLARE (TYPE (VECTOR T) V)) (AREF V 3))
6035 can now be compiled with some semblance of efficiency. (The old code
6036 turned the type declaration into a full call to %TYPEP at runtime!)
6037 * AREF on (VECTOR T) is still not fast, since it's still compiled
6038 as a full call to SB-KERNEL:DATA-VECTOR-REF, but at least the
6039 ETYPECASE used in DATA-VECTOR-REF is now compiled reasonably
6040 efficiently. (The old version made full calls to SUBTYPEP at runtime!)
6041 * (MAKE-ARRAY 12 :FILL-POINTER T) is now executed less inefficiently,
6042 without making full calls to SUBTYPEP at runtime.
6043 (Some analogous efficiency issues for non-simple vectors specialized to
6044 element types other than T, or for non-simple multidimensional arrays,
6045 have not been addressed. They could almost certainly be handled the
6046 same way if anyone is motivated to do so.)
6047 * The changes in array handling break binary compatibility, so
6048 *BACKEND-FASL-FILE-VERSION* has been bumped to 4.
6049 * (TYPEP (MAKE-ARRAY 12 :FILL-POINTER 4) 'VECTOR) now returns (VALUES T)
6050 instead of (VALUES T T).
6051 * By following the instructions that Dan Barlow posted to sbcl-devel
6052 on 2 July 2000, I was able to enable primitive dynamic object
6053 file loading code for Linux. The full-blown CMU CL LOAD-FOREIGN
6054 functionality is not implemented (since it calls ld to resolve
6055 library references automatically, requiring RUN-PROGRAM for its
6056 implementation), but a simpler SB-EXT:LOAD-1-FOREIGN (which doesn't
6057 try to resolve library references) is now supported.
6058 * The system now flushes the standard output streams when it terminates,
6059 unless QUIT is used with the RECKLESSLY-P option set. It also flushes
6060 them at several other probably-convenient times, e.g. in each pass of
6061 the toplevel read-eval-print loop, and after evaluating a form given
6062 as an "--eval" command-line option. (These changes were motivated by a
6063 discussion of stream flushing issues on cmucl-imp in August 2000.)
6064 * The source transform for TYPEP of array types no longer assumes
6065 that an array whose element type is a not-yet-defined type
6066 is implemented as an array of T, but instead punts, so that the
6067 type will be interpreted at runtime.
6068 * There is now some support for cross-compiling in make.sh: each of
6069 the phases of make.sh has its own script. (This should be transparent
6070 to people doing ordinary, non-cross-compile builds.)
6071 * Since my laptop doesn't have hundreds of megabytes of memory like
6072 my desktop machine, I became more motivated to do some items on
6073 my to-do list in order to reduce the size of the system a little:
6074 ** Arrange for various needed-only-at-cold-init things to be
6075 uninterned after cold init. To support this, those things have
6076 been renamed from FOO and *FOO* to !FOO and *!FOO* (i.e., all
6077 symbols with such names are now uninterned after cold init).
6078 ** Bind SB!C::*TOP-LEVEL-LAMBDA-MAX* to a nonzero value when building
6079 fasl files for cold load.
6080 ** Remove the old compiler structure pooling code (which used to
6081 be conditional on the target feature :SB-ALLOC) completely.
6082 ** Redo the representation of some data in cold init to be more compact.
6083 (I also looked into supporting byte compiled code at bootstrap time,
6084 which would probably reduce the size of the system a lot, but that
6085 looked too complicated, so I punted for now.)
6086 * The maximum signal nesting depth in the src/runtime/ support code has
6087 been reduced from 4096 to 256. (I don't know any reason for the very
6088 large old value. If the new smaller value turns out to break something,
6089 I'll probably just bump it back up.)
6090 * PPRINT-LOGICAL-BLOCK is now pickier about the types of its arguments,
6092 * Many, many bugs reported by Peter Van Eynde have been added to
6093 the BUGS list; some have even been fixed.
6094 * While enabling dynamic object file loading, I tried to make the
6095 code easier to understand, renaming various functions and variables
6096 with less ambiguous names, and changing some function calling
6097 conventions to be Lispier (e.g. returning NIL instead of 0 for failure).
6098 * While trying to figure out how to do the OpenBSD port, I tried to
6099 clean up some of the code in src/runtime/. In particular, I dropped
6100 support for non-POSIX signal handling, added various comments,
6101 tweaked the code to reduce the number of compilation warnings, and
6102 renamed some files to increase consistency.
6103 * To support the new automatic configuration functionality in make.sh,
6104 the source file target-features.lisp-expr has been replaced with the
6105 source file base-target-features.lisp-expr and the machine-generated
6106 file local-target-features.lisp-expr.
6107 * fixed a stupid quoting error in make.sh so that using CMU CL
6108 "lisp -batch" as cross-compilation host works again
6110 changes in sbcl-0.6.6 relative to sbcl-0.6.5:
6112 * DESCRIBE no longer tries to call itself recursively to describe
6113 bound/fbound values, so that it no longer fails on symbols which are
6114 bound to themselves (like keywords, T, and NIL).
6115 * DESCRIBE now works on generic functions.
6116 * The printer now prints less-screwed-up representations of closures
6117 (not naively trying to bogusly use the %FUNCTION-NAME accessor on them).
6118 * A private symbol is used instead of the :EMPTY keyword previously
6119 used to mark empty slots in hash tables. Thus
6120 (DEFVAR *HT* (MAKE-HASH-TABLE))
6121 (SETF (GETHASH :EMPTY *HT*) :EMPTY)
6122 (MAPHASH (LAMBDA (K V) (FORMAT T "~&~S ~S~%" K V)))
6123 now does what ANSI says that it should. (You can still get
6124 similar noncompliant behavior if bang on the hash table
6125 implementation with all the symbols you get back from
6126 DO-ALL-SYMBOLS, but at least that's a little harder to do.)
6127 This breaks binary compatibility, since tests for equality to
6128 :EMPTY are wired into things like the macroexpansion of
6129 WITH-HASH-TABLE-ITERATOR in FASL files produced by earlier
6131 * There's now a minimal placeholder implementation for CL:STEP,
6132 as required by ANSI.
6133 * An obscure bug in the interaction of the normal compiler, the byte
6134 compiler, inlining, and structure predicates has been patched
6135 by setting the flags for the DEFTRANSFORM of %INSTANCE-TYPEP as
6136 :WHEN :BOTH (as per Raymond Toy's suggestion on the cmucl-imp@cons.org
6138 * Missing ordinary arguments in a macro call are now detected even
6139 when the macro lambda list contains &KEY or &REST.
6140 * The debugger no longer complains about encountering the top of the
6141 stack when you type "FRAME 0" to explicitly instruct it to go to
6142 the top of the stack. And it now prints the frame you request even
6143 if it's the current frame (instead of saying "You are here.").
6144 * As specified by ANSI, the system now always prints keywords
6145 as #\: followed by SYMBOL-NAME, even when *PACKAGE* is the
6147 * The default initial SIZE of HASH-TABLEs is now smaller.
6148 * Type information from CLOS class dispatch is now propagated
6149 into DEFMETHOD bodies, so that e.g.
6150 (DEFMETHOD FOO ((X SINGLE-FLOAT))
6152 is now basically equivalent to
6153 (DEFMETHOD FOO ((X SINGLE-FLOAT))
6154 (DECLARE (TYPE SINGLE-FLOAT X))
6156 and the compiler can compile (+ X 123.0) as a SINGLE-FLOAT-only
6157 operation, without having to do run-time type dispatch.
6158 * The macroexpansion of DEFMETHOD has been tweaked so that it has
6159 reasonable behavior when arguments are declared IGNORE or IGNORABLE.
6160 * Since I don't seem to be making big file reorganizations very often
6161 any more (and since my archive of sbcl-x.y.zv.tar.bz2 snapshots
6162 is overflowing my ability to conveniently back them up), I've finally
6163 checked the system into CVS. (The CVS repository is on my home system,
6164 not at SourceForge -- putting it on SourceForge might come later.)
6165 * SB-EXT:*GC-NOTIFY-STREAM* has been added, to control where the
6166 high-level GC-NOTIFY-FOO functions send their output. (There's
6167 still very little control of where low-level verbose GC functions
6168 send their output.) The SB-EXT:*GC-VERBOSE* variable now controls
6169 less than it used to -- the GC-NOTIFY-FOO functions are now under
6170 the control of *GC-NOTIFY-STREAM*, not *GC-VERBOSE*.
6171 * The system now stores the version string (LISP-IMPLEMENTATION-VERSION)
6172 in only one place in the source code, and propagates it automatically
6173 everywhere that it's needed. Thus e.g. when I bump the version from
6174 0.6.6 to 0.6.7, I'll only need to modify the sources in one place.
6175 * The C source files now include boilerplate legalese and documentation
6176 at the head of each file (just as the Lisp source files already did).
6177 * At Dan Barlow's suggestion, the hyperlink from the SBCL website
6178 to his page will be replaced with a link to his new CLiki service.
6180 changes in sbcl-0.6.5 relative to sbcl-0.6.4:
6182 * Raymond Wiker's patches to port the system to FreeBSD have been merged.
6183 * The build process now looks for GNU make under the default name "gmake",
6184 instead of "make" as it used to. If GNU make is not available as "gmake"
6185 on your system, you can change this default behavior by setting the
6186 GNUMAKE environment variable.
6187 * Replace #+SB-DOC with #!+SB-DOC in seq.lisp so that the system
6188 can build without error under CMU CL.
6190 changes in sbcl-0.6.4 relative to sbcl-0.6.3:
6192 * There is now a partial SBCL user manual (with some new text and some
6193 text cribbed from the CMU CL manual).
6194 * The beginnings of a profiler have been added (starting with the
6195 CMU CL profiler and simplifying and cleaning up). Eventually the
6196 main interface should be through the TRACE macro, but for now,
6197 it's still accessed through vaguely CMU-CL-style functions and macros
6198 exported from the package SB-PROFILE.
6199 * Some problems left over from porting CMU CL to the new
6200 cross-compilation bootstrap process have been cleaned up:
6201 ** DISASSEMBLE now works. (There was a problem in using DEFMACRO
6202 instead of SB!XC:DEFMACRO, compounded by an oversight on my
6203 part when getting rid of the compiler *BACKEND* stuff.)
6204 ** The value of *NULL-TYPE* was screwed up, because it was
6205 being initialized before the type system knew the final
6206 definition of the 'NULL type. This screwed up several key
6207 optimizations in the compiler, causing inefficiency in all sorts
6208 of places. (I found it because I wanted to understand why
6209 GET-INTERNAL-RUN-TIME was consing.)
6210 * fixed a bug in DEFGENERIC which was causing it to overwrite preexisting
6211 PROCLAIM FTYPE information. Unfortunately this broke binary
6212 compatibility again, since now the forms output by DEFGENERIC
6213 to refer to functions which didn't exist in 0.6.3.
6214 * added declarations so that SB-PCL::USE-CACHING-DFUN-P
6215 can use the new (as of 0.6.3) transform for SOME into MAP into
6217 * changed (MOD 1000000) type declarations for Linux timeval.tv_usec slot
6218 values to (INTEGER 0 1000000), so that the time code will no longer
6219 occasionally get blown up by Linux returning 1000000 microseconds
6220 * PRINT-UNREADABLE-OBJECT has been tweaked to make the spacing of
6221 its output conform to the ANSI spec. (Alas, this makes its output
6222 uglier in the :TYPE T :IDENTITY NIL case, but them's the breaks.)
6223 * A full call to MAP NIL with a single sequence argument no longer conses.
6224 * fixes to problems pointed out by Martin Atzmueller:
6225 * The manual page no longer talks about multiprocessing as though
6226 it were currently supported.
6227 * The ILISP support patches have been removed from the distribution,
6228 because as of version 5.10.1, ILISP now supports SBCL without us
6229 having to maintain patches.
6230 * added a modified version of Raymond Toy's recent CMU CL patch for
6231 EQUALP comparison of HASH-TABLE
6233 changes in sbcl-0.6.3 relative to sbcl-0.6.2:
6235 * The system still can't cross-compile itself with
6236 *TYPE-SYSTEM-INITIALIZED* (and all the consistency checks that
6237 entails), but at least it can compile more of itself that way
6238 than it used to be able to, and various buglets which were uncovered
6239 by trying to cross-compile itself that way have now been fixed.
6240 * This release breaks binary compatibility again. This time
6241 at least I've incremented the FASL file format version to 2, so that the
6242 problem can be detected reliably instead of just causing weird errors.
6243 * various new style warnings:
6244 ** using DEFUN, DEFMETHOD, or DEFGENERIC to overwrite an old definition
6245 ** using the deprecated EVAL/LOAD/COMPILE situation names in EVAL-WHEN
6246 ** using the lexical binding of a variable named in the *FOO* style
6247 * DESCRIBE has been substantially rewritten. It now calls DESCRIBE-OBJECT
6248 as specified by ANSI.
6249 * *RANDOM-STATE* is no longer automatically initialized from
6250 (GET-UNIVERSAL-TIME), but instead from a constant seed. Thus, the
6251 default behavior of the system is to repeat its behavior every time
6252 it's run. If you'd like to change this behavior, you can always
6253 explicitly set the seed from (GET-UNIVERSAL-TIME); whereas under the
6254 old convention there was no comparably easy way to get the system to
6255 repeat its behavior every time it was run.
6256 * Support for the pre-CLTL2 interpretation of FUNCTION declarations as
6257 FTYPE declarations has been removed, in favor of their ANSI
6258 interpretation as TYPE FUNCTION declarations. (See p. 228 of CLTL2.)
6259 * The quantifiers SOME, EVERY, NOTANY, and NOTEVERY no longer cons when
6260 the types of their sequence arguments can be determined at compile time.
6261 This is done through a new open code expansion for MAP which eliminates
6262 consing for (MAP NIL ..), and reduces consing otherwise, when sequence
6263 argument types can be determined at compile time.
6264 * The optimizer now transforms COERCE into an identity operation when it
6265 can prove that the coerced object is already of the correct type. (This
6266 can be a win for machine generated code, including the output of other
6267 optimization transforms, such as the MAP transform above.)
6268 * Credit information has been moved from source file headers into CREDITS.
6269 * Source file headers have been made more standard.
6270 * The CASE macro now compiles without complaining even when it has
6273 changes in sbcl-0.6.2 relative to sbcl-0.6.1:
6275 * (Note that the way that the PCL macroexpansions were rewritten
6276 to accommodate the change in DEFGENERIC below breaks binary
6277 compatibility. That is, fasl files compiled under sbcl-0.6.1 may
6278 not run under sbcl-0.6.2. Once we get out of alpha releases,
6279 i.e. hit release 1.0.0, we'll probably try to maintain binary
6280 compatibility between maintenance releases, e.g. between sbcl-1.4.3
6281 and sbcl-1.4.4. Until then, however, it might be fairly common
6282 for maintenance releases to break binary compatibility.)
6283 * A bug in the calculation of WARNINGS-P and FAILURE-P in COMPILE-FILE
6285 * The reporting of unhandled signals has been changed to print some
6286 explanatory text as well as the report form. (Previously only
6287 the report form was printed.)
6288 * The macroexpansion for DEFGENERIC now DECLAIMs the function that
6289 it defines, so that the compiler no longer issues undefined function
6290 warnings for compiled-but-not-yet-loaded generic functions.
6291 * The CLTL-style "LISP" and "USER" nicknames for the "COMMON-LISP"
6292 and "COMMON-LISP-USER" packages have been removed. Now only the "CL"
6293 and "CL-USER" standard nicknames from the "11.1.2 Standardized Packages"
6294 section of the ANSI spec are supported.
6295 * The "" nickname for the "KEYWORD" package has been removed.
6296 The reader still handles symbol tokens which begin with a package marker
6297 as keywords, but it doesn't expose its mechanism for doing so in the
6298 (PACKAGE-NICKNAMES (FIND-PACKAGE "KEYWORD")) list.
6299 * The system now issues STYLE-WARNINGs for contradictory TYPE
6300 proclamations. (Warnings for contradictory FTYPE proclamations would
6301 be nice too, but those can't be done usefully unless the type system
6302 is made smarter about FUNCTION types.)
6303 * The names of source files "*host-*.lisp" and "*target-*.lisp" have been
6304 systematized, so that "*target-*.lisp is supposed to exist only on the
6305 target and imply that there's a related file which exists on the
6306 host, and *host-*.lisp is supposed to exist only on the host and imply
6307 that there's a related file which exists on the target. This involves a
6308 lot of renaming. Hopefully the acute confusion caused by the renaming
6309 will be justified by the reduction in chronic confusion..
6310 ** runtime-type.lisp -> early-target-type.lisp
6311 ** target-type.lisp -> late-target-type.lisp
6312 ** early-host-format.lisp -> early-format.lisp
6313 ** late-host-format.lisp -> late-format.lisp
6314 ** host-error.lisp -> misc-error.lisp
6315 ** early-error.lisp -> early-target-error.lisp
6316 ** late-error.lisp -> late-target-error.lisp
6317 ** host-defboot.lisp -> early-defboot.lisp
6318 ** code/misc.lisp -> code/target-misc.lisp
6319 ** code/host-misc.lisp -> code/misc.lisp
6320 ** code/numbers.lisp -> code/target-numbers.lisp
6321 ** code/early-numbers.lisp -> numbers.lisp
6322 ** early-host-type.lisp -> early-type.lisp
6323 ** late-host-type.lisp -> late-type.lisp
6324 ** host-typep.lisp -> typep.lisp
6325 ** load.lisp -> target-load.lisp
6326 ** host-load.lisp -> load.lisp
6327 ** host-disassem.lisp -> disassem.lisp
6328 ** host-insts.lisp -> insts.lisp
6329 ** byte-comp.lisp -> target-byte-comp.lisp
6330 ** host-byte-comp.lisp -> byte-comp.lisp
6331 ** host-signal.lisp -> signal.lisp
6332 ** host-defstruct.lisp -> defstruct.lisp
6333 ** late-target-type.lisp -> deftypes-for-target.lisp
6334 Furthermore, several other previously target-only files foo.lisp (e.g.
6335 hash-table.lisp and random.lisp) have been split into a target-and-host
6336 foo.lisp file and a target-only target-foo.lisp file, with their key type
6337 definitions in the target-and-host part, so that the cross-compiler will
6338 know more about target types.
6339 * DEFSTRUCT BACKEND, and the BACKEND-valued *BACKEND* variable, have
6340 gone away. In their place are various *BACKEND-FOO* variables
6341 corresponding to the slots of the old structure.
6342 * A bug which caused the SB-COLD bootstrap-time package to be propagated
6343 into the target SBCL has been fixed.
6344 * The chill.lisp system for loading cold code into a running SBCL
6346 * Support for the CMU CL "scavenger hook" extension has been removed.
6347 (It was undocumented and unused in the CMU CL sources that SBCL was
6348 derived from, and stale in sbcl-0.6.1.)
6349 * Various errors in the cross-compiler type system were detected
6350 by running the cross-compiler with *TYPE-SYSTEM-INITIALIZED*
6351 (enabling various consistency checks). Many of them were fixed,
6352 but some hard problems remain, so the compiler is back to
6353 running without *TYPE-SYSTEM-INITIALIZED* for now.
6354 * As part of the cross-compiler type system cleanup, I implemented
6355 DEF!TYPE and got rid of early-ugly-duplicates.lisp.
6356 * I have started adding UNCROSS calls throughout the type system
6357 and the INFO database. (Thus perhaps eventually the blanket UNCROSS
6358 on cross-compiler input files will be able to go away, and various
6360 * CONSTANTP now returns true for quoted forms (as explicitly required
6363 changes in sbcl-0.6.1 relative to sbcl-0.6.0:
6365 * changed build optimization from (SAFETY 1) to (SAFETY 3) as a short-term
6366 fix for various type-unsafety bugs, e.g. failures with (LENGTH 123) and
6367 (MAKE-LIST -1). In the longer term, it ought to become true
6368 that declarations are assertions even at SAFETY 1. For now, it's not
6369 quite true even at SAFETY 3, but it's at least more nearly true..
6370 (Note that this change seems to increases the size of the system by
6371 O(5%) and to decrease the speed of the compiler by 20% or more.)
6372 * changed ALIEN printing to be much more abbreviated, as a short-term fix
6373 for the problem of printing dozens of lines of distracting information
6374 about low-level system machinery as part of the top stack frame
6375 on entry to the debugger when an undefined function was called.
6376 * tweaked the debugger's use of WITH-STANDARD-IO-SYNTAX so that *PACKAGE*
6377 is not reset to COMMON-LISP-USER.
6378 * Compilation of stuff related to dyncount.lisp has been made conditional
6379 on the :SB-DYNCOUNT target feature, so that the ordinary core system is
6380 smaller. The various dyncount-related symbols have been moved into
6381 a new "SB-DYNCOUNT" package.
6382 * tty-inspect.lisp has been renamed to inspect.lisp.
6383 * unix-glibc2.lisp has been renamed to unix.lisp, and the :GLIBC2
6384 feature has gone away. (When we eventually port to other flavors of
6385 libc and/or Unix, we'll try to make the differences between flavors
6386 invisible at the user level.)
6387 * Various other *FEATURES* tags, and/or their associated conditionals,
6388 have been removed if obsolescent, or given better documentation, or
6389 sometimes given more-mnemonic names.
6391 changes in sbcl-0.6.0 relative to sbcl-0.5.0:
6393 * tidied up "make.sh" script
6394 * tidied up system directory structure
6395 * better "clean.sh" behavior
6396 * added doc/FOR-CMUCL-DEVELOPERS
6397 * many many small tweaks to output format, e.g. removing possibly-confusing
6398 trailing #\. character in DESCRIBE-INSTANCE
6399 * (EQUALP #\A 'A) no longer signals an error.
6400 * new hashing code, including EQUALP hashing
6401 * tidied up Lisp initialization and toplevel
6402 * initialization files (e.g. /etc/sbclrc and $HOME/.sbclrc)
6403 * command line argument processing
6404 * added POSIX-GETENV function to deal with Unix-ish environment variables
6405 * more-Unixy handling of *STANDARD-INPUT* and other Lisp streams, e.g.
6406 terminating SBCL on EOF
6407 * non-verbose GC by default
6408 * There is no more "sbcl" shell script; the sbcl file is now the C
6409 runtime executable (just like CMU CL).
6410 * removed some unused fops, e.g. FOP-UNIFORM-VECTOR, FOP-CHARACTER, and
6412 * tweaked debug-info.lisp and debug-int.lisp to make the debugger store
6413 symbol and package information as Lisp native symbol and package objects
6414 instead of strings naming symbols and strings naming packages. This way,
6415 whenever packages are renamed (as in warm init), debug information is
6416 transformed along with everything else.
6417 * tweaked the optimization policy declarations which control the building
6418 of SBCL itself. Now, among other things, the system no longer saves
6419 source location debugging information. (This helps two problems at once
6420 by reducing SBCL size and by keeping SBCL from trying to look for its
6421 sources -- which may not exist -- when reporting errors.)
6422 * added src/cold/chill.lisp, to let SBCL read its own cold sources for
6423 debugging and testing purposes
6424 * cleaned up printing, making the printer call PRINT-OBJECT for
6425 instances, and using PRINT-UNREADABLE-OBJECT for most PRINT-OBJECT
6426 methods, giving nearly-ANSI behavior
6427 * converted almost all special variables to use *FOO* naming convention
6428 * deleted PARSE-TIME functionality, since it can be done portably
6429 * moved some files out of cold init into warm init
6430 * deleted DEFUN UNDEFINED-VALUE, replaced (UNDEFINED-VALUE) forms
6432 * regularized formatting of source files
6433 * added an install.sh script
6434 * fixed ridiculous memory usage of cross-compiler by making
6435 compiler/alloc.lisp not try to do pooling unless it can hook
6436 itself into the GC of the cross-compilation host. Now the system
6437 builds nicely on my old laptop.
6438 * added :SB-ALLOC in target-features.lisp-expr
6439 * deleted mention of :ANSI-DOC from target-features.lisp-expr (since it
6440 was not implemented)
6441 * re-did condition handling and note reporting in the compiler. Notes
6442 are no longer handled by signalling conditions. Style warnings
6443 and warnings are handled more correctly and reported in such a way
6444 that it's easy to find one or the other in your output (so that you
6445 can e.g. figure out which of many problems caused COMPILE-FILE to
6447 * changed the severity of several compiler warnings from full WARNING
6448 to STYLE-WARNING in order to conform with the ANSI spec; also changed
6449 compiler note reporting so that it doesn't use the condition system
6450 at all (and hence affects neither FAILURE-P nor WARNINGS-P in the
6451 COMPILE-FILE command)
6452 * made PROCLAIM and DECLAIM conform to ANSI. PROCLAIM is now an ordinary
6453 function. As a consequence, START-BLOCK and END-BLOCK declarations are
6454 no longer supported, since their implementation was deeply intertwingled
6455 with the magical, non-ANSI treatment that PROCLAIM received in CMU CL.
6456 * removed bogus "support" for compiler macros named (SETF FOO), and
6457 removed the compiler macro for SETF INFO (but only after making a fool
6458 of myself on the cmucl-imp mailing list by posting a bogus patch for
6459 DEFINE-COMPILER-MACRO..)
6460 * Compiled files containing forms which have side effects on the Lisp
6461 reader (such as DEFPACKAGE forms) are now handled more correctly.
6462 (Compiler queuing of top level lambdas has been suppressed by setting
6463 *TOP-LEVEL-LAMBDA-MAX* to 0. )
6464 * deleted various currently-unused source files, e.g. gengc.lisp. They
6465 may be added back at some point e.g. when porting to other architectures,
6466 but until they are it's distracting to distribute them and to try to
6468 * deleted "UNCROSS couldn't recurse through.." style warnings, since
6469 there were so many of them they're just distractions, and UNCROSS is
6470 known to be able to handle the current sources
6471 * moved PROFILE functionality into TRACE, so that it will be clear
6472 how the wrapping and unwrapping of functions when you profile them
6473 interacts with the wrapping and unwrapping of functions when you
6474 trace them. (Actually, the functionality isn't there yet, but at least
6475 the interface specification is there. Hopefully, the functionality will
6476 arrive with some future maintenance release.)
6477 * removed host-oops.lisp
6478 * changed signature of QUIT function to allow UNIX-CODE argument
6479 * fixed READ-SEQUENCE bug
6480 * tweaked verbose GC output so that it looks more like the progress
6481 output that ANSI specifies for functions like LOAD
6482 * set up the system on sourceforge.com, with home pages, mailing lists, etc.
6483 * added <http://sbcl.sourceforge.com> to the banner information printed by