1 ;;;; -*- coding: utf-8; fill-column: 78 -*-
2 changes relative to sbcl-1.1.7:
3 * notice: The implementation of MAP-ALLOCATED-OBJECTS (the heart of
4 ROOM, plus a few SB-INTROSPECT functions) has been completely
5 rewritten, it may now exhibit different bugs than before.
6 * enhancement: RUN-PROGRAM supports a :DIRECTORY argument to set
7 the working directory of the spawned process.
8 (lp#791800) (patch by Matthias Benkard)
9 * enhancement: boxed vectors (vectors of T or of FIXNUM) can now be
10 stack-allocated on PPC.
11 * enhancement: "fixed objects" can now be stack-allocated on PPC.
12 * enhancement: WITH-PINNED-OBJECTS no longer conses on PPC/GENCGC.
13 * enhancement: (sb-introspect:find-definition-sources-by-name x :vop) now
14 also returns VOPs which do not translate any functions, and finds
15 defoptimizer types ir2convert and stack-allocate-result.
16 * enhancement: better type derivation for APPEND, NCONC, LIST.
18 * enhancement: MAP-ALLOCATED-OBJECTS (the heart of ROOM) now walks the
19 heap in a manner similar to the GC rather than its previous ad-hoc
20 scheme, and is therefore no less and possibly more accurate.
21 * bug fix: type derivation for LOG{AND,IOR,XOR} scales linearly instead
22 of quadratically with the size of the input in the worst case.
24 * bug fix: handle errors when initializing *default-pathname-defaults*,
25 sb-ext:*runtime-pathname*, sb-ext:*posix-argv* on startup, like character
26 decoding errors, or directories being deleted.
27 * bug fix: Loading a core with a discontiguous dynamic space now correctly
28 computes the amount of dynamic space used.
29 * bug fix: disassembler missing ",8" on SHLD
30 * bug fix: backtracing through INTERNAL-ERROR signal handlers on systems
31 that provide an "invalid" stack frame link for the signal handler
32 itself now use the saved-fp-and-pc mechanism to pick up from the stack
33 frame in the interrupt (signal) context. This is known to affect
34 threaded FreeBSD/x86-64.
35 * bug fix: some LOOP statements couldn't be compiled.
37 * bug fix: sb-sequence:dosequence works on literal vectors.
38 * optimization: faster ISQRT on fixnums and small bignums
39 * optimization: faster and smaller INTEGER-LENGTH on fixnums on x86-64.
40 * optimization: On x86-64, the number of multi-byte NOP instructions used
41 for code alignment is now always minimal.
42 * optimization: On 64-bit targets, the compiler generates much faster
43 code for type checks for types known at compile time that are smaller
44 than (SIGNED-BYTE 64) or (UNSIGNED-BYTE 64) and larger than FIXNUM, and
45 their COMPLEX variants.
46 * optimization: On x86 targets, more uses of ALIEN-FUNCALL during cross
47 compilation now inline the INVOKE-WITH-SAVED-FP-AND-PC dance.
48 * optimization: ROOM no longer conses so egregiously on non-x86oid
51 changes in sbcl-1.1.7 relative to sbcl-1.1.6:
52 * enhancement: TRACE :PRINT-ALL handles multiple-valued forms.
54 * bug fix: :allocation slot option works for condition slots
56 * bug fix: redefining conditions does not lead to multiple evaluations of
57 hairy slot initfunctions anymore (lp#1164969)
58 * bug fix: CLASS-DIRECT-DEFAULT-INITARGS now works for condition classes
60 * bug fix: function constants now work as initforms and default initarg
61 values of conditions (lp#539517)
62 * bug fix: svref/(setf svref) on symbol macros don't crash the compiler
63 anymore. (Minimal test case provided by James M. Lawrence on sbcl-devel)
64 * bug fix: no more bogus ## references when pretty printing backquoted
65 forms with non-trivial structure sharing. (lp#1161218)
66 * bug fix: Don't signal an error on (setf (documentation nil 'function)
67 "doc"). Signal a style-warning instead when trying to set documentation
68 of NIL for all other documentation types. (Reported by Zach
69 Beane; regression since 2e52fa05.)
70 * bug fix: modular arithmetic involving large constants and conditionals
71 should no longer result in spurious dead code elimination. (Reported by
73 * bug fix: our mach exception handler can seemingly called very early in
74 the program execution process on OS X 10.8.0. Try and handle that case
75 robustly, without potentially leaking mach ports too much.
76 * optimization: LOGBITP and LOGTEST optimizations from x86 ported to x86_64.
78 changes in sbcl-1.1.6 relative to sbcl-1.1.5:
79 * enhancement: the continuable error when defknown-ing over extant
80 fndb entries can be ignored by passing :overwrite-fndb-silently t
81 as a keyword argument to sb-c:defknown (after attributes). Useful
82 to allow defknown to be re-loaded. Use with :allow-other-keys t
83 for backward compatibility.
84 * optimization: compiler is much faster in compiling SVREF and (SETF SVREF)
86 * bug fix: Prevent a make-array transform from modifying source forms
87 causing problems for inlined code. Thanks to Bart Botta.
88 (regression since 1.0.42.11-bis)
89 * bug fix: clear-output calls the correct gray stream routine,
90 sb-gray:stream-clear-output. (lp#1153257)
91 * bug fix: an error is signalled for an invalid format modifier: ~<~@>.
93 * bug fix: Better error messages for package operations (lp#1154776)
94 * bug fix: delete-package on a nonexistent package should signal a cerror.
95 (regression since 1.0.37.44).
96 * bug fix: accessing &MORE (stack allocated &REST) arguments checks bounds.
97 (lp#1154946, lp#1072112)
98 * bug fix: compiling make-array no longer signals an error when the
99 element-type is an uknown type, a warning is issued instead.
100 Thanks to James Kalenius (lp#1156095)
101 * bug fix: SEARCH on generic (non-VECTOR non-LIST) sequence types no longer
102 produces wrong results for some inputs. (Thanks to Jan Moringen.)
105 changes in sbcl-1.1.5 relative to sbcl-1.1.4:
106 * minor incompatible change: SB-SPROF:WITH-PROFILING no longer loops
108 * new feature: package local nicknames. See manual for details.
109 * new feature: SB-EXT:MAP-DIRECTORY provides a powerful interface for
110 directory traversal: it is the backend used by SBCL for CL:DIRECTORY.
111 * enhancement: easier to use restarts for resolving name-conflicts
112 resulting from IMPORT, EXPORT, or USE-PACKAGE.
113 * enhancement: variant DEFPACKAGE forms now signal a full error with
114 restarts provided for resolving the situation. (lp#891351)
115 * enhancement: by setting SB-EXT:*ON-PACKAGE-VARIANCE* appropriately variant
116 DEFPACKAGE forms can now signal a full error with restarts provided for
117 resolving the situation. See manual for details. (lp#891351)
118 * enhancement: make-random-state now uses CryptGenRandom as a seed on Windows.
119 (Thanks to Anton Kovalenko.) (lp#1102748)
120 * enhancement: backtrace improvements
121 ** secondary CLOS dispatch functions have better debug names (lp#503081)
122 ** easier to read method names in backtraces. See
123 SB-DEBUG:*METHOD-FRAME-STYLE*.
124 ** SB-DEBUG:PRINT-BACKTRACE and SB-DEBUG:LIST-BACKTRACE are available as
125 forwards-compatible replacements for SB-DEBUG:BACKTRACE and
126 SB-DEBUG:BACKTRACE-AS-LIST.
127 ** SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS** has been deprecated, as the same
128 information is available in less intrusive form as frame annotations.
129 * enhancement: SB-POSIX now provides MAP-ANON.
130 * enhancement: test-suite results are colorized, failures in red, unexpected
131 success in green. Works on Windows and on terminals with ANSI escape code
132 support. Can be disabled with --no-color.
133 * optimization: SB-CONCURRENCY:QUEUE implementation is more efficient.
134 (thanks to James M. Lawrence)
135 * bug fix: no more unused variable style warnings from RESTART-CASE
136 macroexpansion (lp#1113859)
137 * bug fix: no more unused variable style warnings when loading
138 sb-bsd-sockets.asd (lp#1114681)
139 * bug fix: deleting a package removes it from implementation-package
140 lists of other packages.
141 * bug fix: SB-SPROF:WITH-PROFILING is now usable in the Slime REPL on Darwin.
142 This does not fix the occasional "interrupt already pending" issue, though.
143 * bug fix: (setf (documentation 'x 'function)) and
144 (setf (documentation #'x t)) set documentation in different places.
145 (regression since 1.0.43.63)
146 * bug fix: build on newer glibc. (lp#1095036)
148 changes in sbcl-1.1.4 relative to sbcl-1.1.3:
149 * optimization: LOOP expressions using "of-type character" have slightly
150 more efficient expansions.
151 * bug fix: very long (or infinite) constant lists in DOLIST do not result
152 in very long compile times or heap exhaustion anymore. (lp#1095488)
153 * bug fix: `#3(1) is read as #(1 1 1), not as #(1). (lp#1095918)
154 * bug fix: adjust-array ignored :initial-element for simple-vectors.
156 * bug fix: optimizations to MAKE-INSTANCE with literal list initargs no
157 longer cause infinite loops (on circular data) or violate eqlity
158 constraints. (lp#1099708)
159 * bug fix: FIRST was not being open coded. (regression from 1.1.0)
161 changes in sbcl-1.1.3 relative to sbcl-1.1.2:
162 * enhancement: warnings about bad locale settings, LANG, LC_CTYPE, etc.
164 * enhancement: support for C-c to interrupt the foreground thread
165 on Windows. (Thanks to Anton Kovalenko.)
166 * enhancement: STDCALL alien callbacks. (Thanks to Anton Kovalenko.)
167 * enhancement: Safepoint builds on POSIX platforms can now optionally be
168 built without pseudo-atomic sequences and their run-time overhead.
169 * enhancement: Threads created outside of Lisp can enter Lisp through
170 alien callbacks and appear as Lisp threads for the duration of that
171 function invocation. On safepoint builds only.
172 * enhancement: Miscellaneous improvements to namestrings and underlying
173 calls to OS functions for file system access on Windows. (Thanks to
175 * enhancement: The MSI installer support for Windows now uses Windows
176 Installer XML at least version 3.5 and includes various usability
177 improvements. (Thanks to Dmitry Kalyanov and Anton Kovalenko.)
178 * enhancement: The sb-bsd-sockets contrib now supports non-blocking-mode
179 on Windows. (Thanks to Anton Kovalenko.)
180 * enhancement: The Windows backend now supports the x86-64 platform.
181 (Thanks to Anton Kovalenko.)
182 * bug fix: fasls are now once again directly executable (on platforms
183 supporting shebang lines, with a suitably-installed sbcl).
184 * bug fix: make.sh --help no longer runs clean.sh. (lp#937001)
185 * bug fix: Fix CAS access to slots of direct instances of structure classes
186 in the presence of subclasses sharing the same conc-name.
187 * bug fix: Logical pathname namestrings on Windows have been changed to
188 be lower-case, to minimize differences between POSIX and Windows.
190 changes in sbcl-1.1.2 relative to sbcl-1.1.1:
191 * notice: System requirements for SBCL on Microsoft Windows: Windows NT 5.1
192 or newer (Windows XP, Server 2003) is required. Support for Windows 2000
193 (NT 5.0) is no longer being maintained.
194 * notice: Starting with this version, SBCL on Windows no longer supports
195 building with disabled thread support.
196 * enhancement: frlocks have been added to SB-CONCURRENCY contrib module.
197 * enhancement: New feature sb-dynamic-core allows the runtime to be
198 rebuilt or relocated without requiring changes to the core file on
199 all linkage table platforms. Required on Windows. (Thanks to Anton
201 * enhancement: Console I/O streams use UCS-2. (Thanks to Anton Kovalenko.)
202 * enhancement: I/O on Windows unnamed pipes is interruptible
203 asynchronously using interrupt-thread, timers when running on Windows NT
204 version 6.1 or newer (Windows 7, Server 2008 R2). (Thanks to Anton
206 * enhancement: Support for the experimental safepoint-based stop-the-world
207 protocol on the PowerPC platform.
208 * bug fix: Non-blocking reads from the Windows console were not necessarily
209 non-blocking. Thanks to Anton Kovalenko. (lp#308923)
210 * bug fix: stability of threads on Windows has been improved upon through
211 an updated stop-the-world protocol (thanks to Anton Kovalenko).
213 changes in sbcl-1.1.1 relative to sbcl-1.1.0:
214 * enhancement: WITH-COMPILATION-UNIT no longer grabs the world-lock.
215 (COMPILE and COMPILE-FILE still do.)
216 * optimization: the SPARC backend now supports the precise generational
217 (GENCGC) garbage collection. Enabled by default on Solaris/SPARC and
218 Linux/SPARC. Thanks to Raymond Toy (via CMUCL).
219 * enhancement: add experimental support for the SB-THREAD feature and the
220 timer facility on Windows. Thanks to Dmitry Kalyanov and Anton Kovalenko.
221 Threads are enabled by default, and this version of SBCL is considered
222 to be the last and final release to officially support building with
224 * optimization: The compiler no longer rotates loops in some cases where
225 this transformation actually lead to worse code being generated.
226 * bug fix: SB-CLTL2:MACROEXPAND-ALL correctly handles shadowing of
227 symbol-macros by lexical bindings.
228 * bug fix: stack allocation was prevented by high DEBUG declaration in
230 * bug fix: SB-EXT:GC-LOGFILE signaled an error when no logfile was set.
231 (thanks to SANO Masatoshi)
232 * bug fix: PARSE-NATIVE-NAMESTRING performed non-native parsing when
233 :JUNK-ALLOWED was true.
234 * bug fix: type derivation inferred overly conservative types for
235 unions of array types. (lp#1050768)
237 changes in sbcl-1.1.0 relative to sbcl-1.0.58:
238 * enhancement: New variable, sb-ext:*disassemble-annotate* for controlling
239 source annotation of DISASSEMBLE output. Defaults to T.
240 * enhancement: TIMEOUT arguments added to WITH-MUTEX and WITH-RECURSIVE-LOCK, and
241 WAIT-P argument added to WITH-RECURSIVE-LOCK.
242 * enhancement: SB-EXT:ATOMIC-PUSH and SB-EXT:ATOMIC-POP allow atomic operations
244 * enhancement: Optional features (not enabled by default) allow the
245 use of signals for inter-thread synchronization to be reduced on certain
246 supported platforms (currently Linux, Solaris, and FreeBSD on x86 and
247 x86-64). Set (and :sb-thread :sb-safepoint :sb-thruption :sb-wtimer)
248 to test these experimental features. Known remaining bugs include minor
249 thread safety issues, less timely freeing of memory by GC, and certain
250 (not yet optimally low) runtime overhead. Thanks to Anton Kovalenko.
251 * optimization: CL:SORT and CL:STABLE-SORT of lists are faster and use fewer
252 comparisons, particularly on almost-sorted inputs.
253 * bug fix: Reading floats with large exponents no longer takes too much time
254 before reporting that the exponent is too large.
255 * bug fix: SB-BSD-SOCKETS:SOCKET-RECEIVE with a UDP socket now works
256 correctly when the received datagram is larger than the provided buffer.
257 (lp#1023438, thanks to Robert Uhl)
258 * bug fix: SB-EXT:GET-CAS-EXPANSION returned a bogus read-form when given
259 a SYMBOL-VALUE form with a constant symbol argument.
260 * bug fix: SB-EXT:GET-CAS-EXPANSION signaled an error when a macro expanding
261 into a DEFCAS defined place was used as the place.
262 * bug fix: FIND and POSITION signaled a type-error when non-bits where looked
263 for from bit-vectors.
264 * bug fix: a race condition around thread creation could (in SBCL 1.0.57)
265 lead to internal errors or crashes (lp#1058799).
266 * documentation: a section on random number generation has been added to the
269 changes in sbcl-1.0.58 relative to sbcl-1.0.57:
270 * enhancement: implicit generic function warnings now specify the package
271 in which the new generic function is being created.
272 * enhancement: SB-EXT:ATOMIC-UPDATE makes it easy to perform non-destructive
273 updates of CAS-able places (similar to Clojure's swap!).
274 * enhancement: run-program no longer decodes and re-encodes environment when
275 :environment argument is not provided. (lp#985904)
276 * enhancement: errors during compiler-macro expansion no longer cause
277 runtime errors, only a compile-time warning, otherwise behaving as if
278 the compiler macro had declined to expand.
279 * optimization: On x86-64, code alignment of block headers is done with
280 multi-byte NOPs now instead of repetitions of the single-byte NOP.
281 * optimization: MAP-INTO is substantially faster when the target sequence is
282 of unknown type; mapping into lists is no longer O(N^2). (lp#1001043,
283 thanks to James M. Lawrence)
284 * optimization: the compiler no longer heap-conses to check exits in cases
285 where the exit function is dynamic extent, or when it can prove the exit
286 function cannot escape. (lp#1002534)
287 * optimization: SB-SEQUENCE:DOSEQUENCE is faster on vectors of unknown
288 element type, and vectors that aren't SIMPLE-ARRAYs.
289 * optimization: CL:SORT and CL:STABLE-SORT are more efficient in execution
290 speed (around 1/3 the time in some cases), and a little better in terms of
291 comparison calls. (Thanks to Takeru Ohta)
292 * bug fix: On SPARC, a limitation on the number of code constants emittable
293 by the compiler has been lifted, allowing certain long functions to
294 compiled and assembled which had previously been unsupported; fixes
295 cl-bench on this ISA (lp#1008996).
296 * bug fix: potential for infinite recursion during compilation of CLOS slot
297 typechecks when dependency graph had loops. (lp#1001799)
298 * bug fix: error forms reported with some program-errors were not escaped
300 * bug fix: functions from EVAL are now on more equal footing with functions
301 from COMPILE. (lp#1000783, lp#851170, lp#922408)
302 * bug fix: ENSURE-GENERIC-METHOD-COMBINATION accepts method combination
303 objects as its :METHOD-COMBINATION argument, not just lists designating
304 method combinations. (lp#936513)
305 * bug fix: run-program no longer unconditionally uses /tmp/ for temporary
307 * bug fix: restore build on solaris/sparc. (lp#1008506)
308 * bug fix: an issue with LDB in the PowerPC backend has been resolved;
309 this fixes an issue found with cl-postgres (thanks to Tomas Hlavaty).
310 * bug fix: compiler-macro lambda-lists specifying non-keyword symbols
311 as keyword arguments no longer accidentally match unevaluated symbols
313 * bug fix: FORMAT used to loop infinitely in some cases when a COLINC
314 parameter was zero, now it signals an error. (lp#905817, fixed since
316 * bug fix: run-program with :pty t no longer makes the pty as the process's
318 * bug fix: spawning threads on OS X 10.8 no longer crashes the process
321 changes in sbcl-1.0.57 relative to sbcl-1.0.56:
322 * RANDOM enhancements and bug fixes:
323 ** bug fix: the range and distribution of random integers could be
324 catastrophically wrong when the compiler derived the type of its
325 argument as a disjoint set of small integers.
326 ** bug fix: the distribution of random integers is now completely
327 uniform even when the specified limit is not a power of two.
328 (Previously some values could be about 0.1 % more probable than
329 others in the worst case.) (lp#309467)
330 ** RANDOM on large integer arguments is generally faster and conses
331 less than before; this is visible for fixnums above a length of
332 about 24 bits, but extremely so for bignums: the old implementation
333 used time and space quadratical in the size of the argument there,
334 the new one is linear.
335 * enhancement: redesigned protocol for quitting SBCL. SB-EXT:EXIT is the new
336 main entry point, SB-EXT:QUIT is deprecated.
337 * enhancement: additions to the SB-THREAD API: RETURN-FROM-THREAD,
338 ABORT-THREAD, MAIN-THREAD-P, and MAIN-THREAD.
339 * enhancement: FASL loading no longer grabs the world-lock.
340 * enhancement: GENCGC reclaims space more aggressively when objects being
341 allocated are a large fraction of the total available heap space.
343 * enhancement: backtraces show the correct number of arguments for frames
344 called with too many arguments.
345 * enhancement: support for abort(3), exit(3), and _exit(2) has been added to
347 * enhancement: ASDF has been updated 2.21.
348 * optimization: fewer uses of full calls to signed modular functions.
350 * optimization: typechecking alien values is typically 5 x faster.
351 * optimization: FDEFINITION, SYMBOL-FUNCTION, MACRO-FUNCTION, and FBOUNDP
353 * bug fix: file compilation performance issues when dumping subtypes
354 of CHARACTER (lp#994487)
355 * bug fix: fixed disassembly of some SSE instructions on x86-64.
356 * bug fix: SB-SIMPLE-STREAMS signals an error for bogus :CLASS arguments in
357 OPEN. (lp#969352, thanks to Kambiz Darabi)
358 * bug fix: CASE normal-clauses do not allow T and OTHERWISE as keys.
360 * bug fix: (SETF (FIND-CLASS X) NIL) removed proper name of the underlying
361 classoid even if X was not the proper name of the class. (lp#941102)
362 * bug fix: declaration leakage between lexical environments due to careless
363 use of NCONC in MAKE-LEXENV. (lp#924276)
364 * bug fix: ENSURE-DIRECTORIES-EXIST now works when
365 *default-pathname-defaults* contains NAME or TYPE components.
366 * bug fix: PPRINT couldn't print improper lists with CARs being some symbols
367 from CL package, e.g. (loop . 10).
368 * bug fix: run-program with existent or non-existent files for :output or
369 :input when :if-output-exists or :if-input-does-not-exist are NIL properly
370 returns NIL instead of signalling an obscure error.
371 * bug fix: fix miscompilation of some logand forms with large constant
372 arguments. (lp#974406)
373 * bug fix: account for funcallable-instance objects properly in ROOM.
374 * bug fix: incorrect octets reported for c-string decoding errors.
376 * bug fix: miscompilation of LDB on the PowerPC platform. (thanks to Bruce
378 * bug fix: better input error reporting for COMPILE-FILE. (lp#493380)
379 * bug fix: default size of non-nursery generations has been shrunk on GENCGC,
380 allowing faster release of memory back to the OS. (lp#991293)
381 * bug fix: WITH-DEADLINE (:SECONDS NIL :OVERRIDE T) now drops any
382 existing deadline for the dynamic scope of its body.
383 * bug fix: compiler-internal interval arithmetic needed to be more
384 conservative about open intervals when operated on by monotonic but not
385 strictly-monotonic functions. (lp#975528)
386 * bug fix: copy-tree caused stack exhaustion on long linear lists, and now
387 it's also slightly faster. (lp#998926)
388 * bug fix: better error messages for malformed declarations.
390 * bug fix: define-condition didn't return the name of the defined condition.
392 ** improved docstrings: REPLACE (lp#965592)
394 changes in sbcl-1.0.56 relative to sbcl-1.0.55:
395 * bug fix: fix copy-structure. When copying from stack to heap, garbage
396 could end up in the heap making GC unhappy.
397 (Thanks to James Knight, lp#911027)
399 ** SBCL can now be built using Clang.
400 ** ASDF has been updated 2.20.
401 * bug fix: compiler errors when weakening hairy integer types. (lp#913232)
402 * bug fix: don't complain about a too-hairy lexical environment for inlining
403 when the function has never been requested for inlining. (lp#963530)
405 changes in sbcl-1.0.55 relative to sbcl-1.0.54:
406 * enhancements to building SBCL using make.sh:
407 ** --fancy can be specified to enable all supported feature enhancements.
408 ** --with-<feature> and --without-<feature> can be used to specify
409 which features to build with.
410 ** --arch option can be used to specify the architecture to build for.
411 (Mainly useful for building 32-bit SBCL's on x86-64 hosts, not
412 full-blows cross-compilation.)
413 * enhancement: extended package prefix syntax <pkgname>::<form-in-package>
414 which allows specifying name of the default interning package for the
416 * enhancement: when *READ-EVAL* is true, arrays with element type other than
417 T can be printed readably using #.-based syntax. (Thanks to Robert Brown)
418 * enhancement: MAKE-ALIEN signals a storage-condition instead of returning a
419 null alien when malloc() fails. (lp#891268)
420 * enhancement: SB-EXT:PRINT-UNREADABLY restart for PRINT-NOT-READABLE
421 conditions can be conveniently accessed through function with the same
422 name, analogously to CONTINUE.
423 * enhancement: SB-EXT:*SUPPRESS-PRINT-ERRORS* can be used to suppress errors
424 from the printer by type, causing an error marker to be printed instead.
425 (Thanks to Attila Lendvai)
426 * enhancement: BACKTRACE and DESCRIBE now bind *PRINT-CIRCLE* to T, and
427 generally behave better when errors occur during printing.
428 * enhancement: the test runner now takes a --report-skipped-tests argument
429 to report the individual tests skipped as well as the number of skipped
431 * enhancement: undefined functions now appear in backtraces as ("undefined
432 function") instead of ("bogus stack frame") on x86oids.
433 * enhancement: detected deadlocks no longer cause stderr to be spammed, and
434 deadlock errors are reported in an easier-to-decipher manner.
435 * enhancement: DESCRIBE on type designators reports the expansion in more
437 * enhancement: SBCL now provides either an explicit :BIG-ENDIAN or
438 :LITTLE-ENDIAN in *FEATURES*, instead of :BIG-ENDIAN being implied by lack
439 of the :LITTLE-ENDIAN feature. (Thanks to LuÃs Oliveira, lp#901661)
440 * enhancement: better disassembly of segment-prefixes on x86 and other
441 instruction prefixes (e.g. LOCK) on x86 and x86-64.
442 * optimization: FIND and POSITION on bit-vectors are orders of magnitude
443 faster (assuming KEY and TEST are not used, or are sufficiently trivial.)
444 * optimization: SUBSEQ on vectors of unknown element type is substantially
446 * optimization: specialized arrays with non-zero :INITIAL-ELEMENT can
447 be stack-allocated. (lp#902351)
448 * optimization: the compiler is smarter about representation selection for
449 floating point constants used in full calls.
450 * optimization: the compiler no longer refuses to coerce large fixnums to
451 single floats inline, except on x86 where this limitation is still
453 * optimization: truncation operations on integers with constant divisor
454 arguments 1 and -1 are optimized away.
455 * bug fix: deadlock detection could report the same deadlock twice, for
456 two different threads. Now a single deadlock is reported exactly once.
457 * bug fix: interval-arithmetic division during type derivation did not
458 account for signed zeros.
459 * bug fix: compiler error when typechecking a call to a function with
460 non-constant keyword arguments.
461 * bug fix: misoptimization of TRUNCATE causing erratic behaviour.
462 * bug fix: condition slot accessors no longer cause undefined function
463 style-warnings when used in the :REPORT clause of the DEFINE-CONDITION
464 form that defines them. (lp#896379)
465 * bug fix: DEFGENERIC warns about unsupported declarations, as specified
467 * bug fix: SUBTYPEP tests involving forward-referenced classes no longer
468 bogusly report NIL, T.
469 * bug fix: bogus style-warnings for DEFMETHOD forms that both declared some
470 required arguments ignored and performed assignments to others.
472 * bug fix: *EVALUATOR-MODE* :COMPILE treated (LET () ...) identically
473 to (LOCALLY ...) leading to internally inconsistent toplevel-formness.
474 * bug fix: non-toplevel DEFSTRUCT signaled a style warning for unknown type.
475 * bug fix: redefining a function whose previous definition contained an
476 unknown type no longer causes a style-warning. (lp#806243)
477 * bug fix: undefined functions now appear in backtraces as ("undefined
478 function") instead of ("bogus stack frame") on non-x86oids.
479 * bug fix: backtraces are no longer cut off at ("undefined function") when
480 called under certain circumstances (involving a caller-allocated stack
482 * bug fix: RUN-PROGRAM leaked a file-descriptor per call on non-Windows
483 systems. (regression since 1.0.53)
484 * bug fix: GC deadlocks from dladdr() on certain platforms.
485 * bug fix: broken standard streams no longer automatically cause recursive
486 errors on debugger entry.
487 * bug fix: build ignored --dynamic-space-size=<size> argument to make.sh
488 (regression since 1.0.53)
489 * bug fix: attempts to stack allocate a required argument to a function with
490 an external entry point caused compiler-errors.
491 * bug fix: compiler notes for failed stack allocation for a function argument
492 no longer claim to be unable to stack allocate the function.
493 * bug fix: COERCE now signals a type-error on several coercions to
494 subtypes of CHARACTER that are forbidden according to ANSI. (lp#841312)
495 * bug fix: missing failure-to-stack-allocate compiler notes for some
496 forms of MAKE-ARRAY with dynamic-extent. (lp#902351)
497 * bug fix: some of the compile-time side-effects of DEFCLASS were not caught
499 * bug fix: Proper handling of --dynamic-space-size option on 32 bit platforms.
501 changes in sbcl-1.0.54 relative to sbcl-1.0.53:
502 * minor incompatible changes:
503 ** RENAME-FILE on a symbolic links used to rename the linked-to file
505 ** DELETE-DIRECTORY on symbolic link to a directory used to delete the
506 directory, but now signal an error instead. Use TRUENAME to resolve the
507 pathname if you wish to delete the linked directory, and DELETE-FILE if
508 you wish to delete the
509 ** The internal SB-THREAD::SPINLOCK API has been deprecated, and using
510 symbols associated with it will trigger a compile-time warning.
511 * thread-related enhancements:
512 (This work has been funded by the SBCL Threading 2011 IndieGoGo campaign.
513 Many thanks to generous donors!)
514 ** Threading is now more reliable on non-Linux platforms. We still don't
515 consider threads on non-Linux platforms good enough to enable them by
516 default, but they're in a clearly better shape now.
517 ** Deadlines supported now on all platforms.
518 ** All blocking functions in the threading API now have a :TIMEOUT
520 ** Semaphore notification objects have been added to SB-THREAD.
521 ** SB-CONCURRENCY contrib now includes Allegro-style GATE objects.
522 ** SB-EXT:COMPARE-AND-SWAP has been extended to support SLOT-VALUE,
523 STANDARD-INSTANCE-ACCESS, and FUNCALLABLE-STANDARD-INSTANCE-ACCESS.
524 ** Users can now defined new places usable with SB-EXT:COMPARE-AND-SWAP
525 using an API anologous to defining new SETFable places.
526 * GC-related enhancements and bug fixes:
527 ** --dynamic-space-size and --control-stack-size now understand Kb, Mb,
528 and Gb suffixes. Default is megabytes as before.
529 ** on GENCGC targets, the default dynamic space size is now 512Mb for
530 32-bit systems, and 1Gb for 64-bit systems. (OpenBSD/x86-64 is the only
531 exception, defaulting to mere 444Mb to fit under default ulimits.) The
532 new defaults are in place to prevent hitting swap on low-end systems.
533 Use build-time option --dynamic-space-size to build an SBCL with
534 another default, or the runtime option to adjust the size at startup: a
535 good size is at most equal to the amount of physical memory the system
537 ** on GENCGC targets, nursery and generation sizes now default to 5% of
539 ** on GENCGC targets, SB-KERNEL:MAKE-LISP-OBJ no longer categorically
540 refuses to create SIMPLE-FUN objects.
541 ** on 64-bit GENCGC targets, setting the nursery size above 4Gb now works.
543 ** on CHENEYGC targets, SB-KERNEL:MAKE-LISP-OBJ now does the same
544 validation of pointer objects as GENCGC does, instead of a
545 comparatively weak bounds-check against the heap spaces.
546 * SB-BSD-SOCKETS bug fixes:
547 ** GET-PROTOCOL-BY-NAME had a significant memory leak.
548 ** GET-HOST-BY-NAME and GET-HOST-BY-ADDRESS small amounts of memory on
549 systems with getaddrinfo().
550 ** GET-HOST-BY-NAME and GET-HOST-BY-ADDRESS weren't thread or interrupt
551 safe outside systems with getaddrinfo().
552 * enhancement: ASDF has been updated 2.019.
553 * enhancement: special-case TCO prevention for functions which never return
554 extended to untrusted types, keeping one more frame's worth of debug
555 information around in many cases.
556 * enhancement: debug-names of anonymous and local function are more
557 descriptive. Affects backtraces and SB-SPROF results. (lp#805100)
558 * enhancement: on win32, ABS of complex floats guards better against
559 overflows. (lp#888410)
560 * enhancement: RUN-PROGRAM now distinguishes exec() failing from child
561 process exiting with code 1. (lp#676987)
562 * enhancement: convenience function SET-SBCL-SOURCE-LOCATION for informing
563 the system where on the filesystem the SBCL sources themselves are
564 located. (Thanks to Zach Beane)
565 * enhancement: the compiler is now able to derive tighter bounds for
566 floating point numbers in some cases. (Thanks to Lutz Euler, lp#894498)
567 * bug fix: on 64-bit targets, atomic-incf/aref does index computation
568 correctly, even on wide-fixnum builds. (lp#887220)
569 * bug fix: (DIRECTORY "foo/*/*.*") did not follow symlinks in foo/ that
570 resolved to directories.
571 * bug fix: type mismatch when assigning to lexical variables no longer
572 result in fasl-dumping internal type objects. (lp#890750)
573 * bug fix: type mismatch on (SETF AREF) and function return values no
574 longer result in fasl-dumping internal type objects.
575 * bug fix: With several combinations of argument types, for example (EXPT
576 <integer> <(complex double)>), EXPT now uses double-precision throughout
577 instead of partially calculating only to single-precision. (lp#741564;
578 thanks to Lutz Euler)
579 * bug fix: SYMBOL-VALUE-IN-THREAD is no longer able to construct bogus
580 objects when interrupted by GC on PPC.
582 changes in sbcl-1.0.53 relative to sbcl-1.0.52:
583 * enhancement: on 64-bit targets, in src/compiler/generic/early-vm.lisp,
584 the parameter n-fixnum-tag-bits may now vary from 1 (fixnum =
585 (signed-byte 63)) to 3 (fixnum = (signed-byte 61)) at build-time.
586 * enhancement: SB-EXT:WAIT-FOR allows waiting for arbitrary events.
587 * minor(?) incompatible(?) change: The default fixnum width on 64-bit
588 targets is now 63 bits (up from 61).
589 * enhancement: DESCRIBE now reports a lambda-list and source location
590 for complext setf-expanders.
591 * bug fix: PUSH, PUSHNEW, POP, REMF, INCF, DECF, DEFINE-MODIFY-MACRO,
592 GETF, LOGBITP, LDB, and MASK-FIELD now arrange for non-primary values
593 of multiple-valued places to be set to NIL, instead of signalling an
594 error (per a careful reading of CLHS 5.1.2.3).
595 * bug fix: floating-point traps now work on darwin/x86 and /x86-64.
596 * bug fix: repair crash in x86oid darwin signal handling emulation
597 when built with certain compilers.
598 * bug fix: SB-ROTATE-BYTE misrotated to the right when using constant
599 rotation arguments on x86-64. (lp#882151)
600 * bug fix: low-level control flow optimisations could result in bogus
601 code in functions with tail and non-tail calls to local functions on
603 * bug fix: on SPARC/:sb-unicode, avoid crashing the assembler by trying
604 to emit literal characters > (code-char 4095), for comparisons with
606 * bug fix: ROOM reported only the low 32 bits of dynamic space usage
607 on 64 bit platforms. (lp#881445)
608 * bug fix: DELETE-FILE did not MERGE-PATHNAMES, making it possible to
609 delete the wrong file when using relative pathnames. (lp#882877)
610 * bug fix: optimized SEARCH of vectors-on-vectors mishandled zero-length
611 sequences and :KEY NIL.
613 changes in sbcl-1.0.52 relative to sbcl-1.0.51:
614 * enhancement: ASDF has been updated to version 2.017.
615 * enhancement: the --core command line option now accepts binaries with
617 * enhancement: when built with :sb-core-compression, core files (regular
618 or executable) can be compressed with zlib. Use the :COMPRESSION
619 argument to SAVE-LISP-AND-DIE to specify a compression level.
620 * enhancement: --[no-]merge-core-pages determines whether the runtime
621 hints the operating system that identical core pages between SBCL
622 processes should share the same physical memory. Default is to only
623 enable this for compressed cores.
624 * optimization: SLEEP no longer conses.
625 * optimization: *PRINT-PRETTY* no longer slows down printing of strings
626 or bit-vectors when using the standard pretty-print dispatch table.
627 * bug fix: non-function FTYPE declarations no longer cause a compiler-error.
629 * bug fix: compiler-errors causes by MEMBER types in conjunction with with
630 AREF, CHAR, etc. (lp#826971)
631 * bug fix: compiler-errors causes by integer arguments with composed of
632 multiple ranges to ARRAY-IN-BOUNDS-P. (lp#826970)
633 * bug fix: ,@ and ,. now signal a read-time error for certain non-list
634 expressions. (lp#770184)
635 * bug fix: complex single float literals are correctly aligned when used
636 as arguments of arithmetic operators.
637 * bug fix: on 32-bit platforms, rounding of double floats larger than a
638 fixnum is correct. (reported by Peter Keller)
639 * bug fix: stray FD-HANDLERs are no longer left lying around after unwinds
640 from RUN-PROGRAM. (lp#840190, reported by Dominic Pearson; fix from Max
642 * bug fix: redefining classes such that slots with custom allocation are
643 added or removed works again.
645 changes in sbcl-1.0.51 relative to sbcl-1.0.50:
646 * minor incompatible change: SB-BSD-SOCKET socket streams no longer
647 participate in SERVE-EVENT by default: pass :SERVE-EVENTS T to
648 MAKE-SOCKET-STREAM if using SERVE-EVENT.
649 * enhancement: added support for socket keepalive timeout intervals
650 and probe counts on Linux.
651 * enhancement: building 32-bit SBCL on Linux/x86-64 now works without a
652 chroot. (Use "SBCL_ARCH=x86 sh make.sh" to build.)
653 * enhancement: added new toplevel options --quit and --non-interactive
655 * enhancement: the Windows port of SBCL now builds and runs on Wine
656 (thanks to Anton Kovalenko).
657 * enhancement: more, and more correct, SSE instruction definitions on
658 x86-64 (thanks to Alexander Gavrilov).
659 * enhancement: SB-EXT:SPIN-LOOP-HINT assembles to an instruction designed
660 to help the processor execute spin loops, when applicable. Currently
661 implemented for x86 and x86-64.
662 * optimization: unsigned integer divisions by a constant are implemented
663 using multiplication (affects CEILING, FLOOR, TRUNCATE, MOD, and REM.)
664 * optimization: improved type-derivation for LOAD-TIME-VALUE.
665 * bug fix: correct RIP offset calculation in SSE comparison and shuffle
666 instructions. (lp#814688)
667 * bug fix: COERCE to unfinalized extended sequence classes now works.
668 (reported by Jan Moringen; lp#815155)
669 * bug fix: a compiler error during typecheck generation, reported by Eric
671 * bug fix: obsolete instance protocol fires when shared slots are added
673 * bug fix: fixed-format floating point printing with scaling factors.
675 * bug fix: using GCC >= 4.6 to build SBCL on x86 no longer breaks
676 backtraces. (lp#818460)
677 * bug fix: better backtraces for interrupted syscall frames on x86.
679 * bug fix: SSE comparison instructions can be disassembled even when one
680 operand is in memory. (lp#814702)
681 * bug fix: incomplete writes when not using SERVE-EVENTS. (lp#820599)
682 * bug fix: MULTIPLE-VALUE-BIND + VALUES -> LET conversion could lose derived
683 type information associated with the VALUES form.
684 * bug fix: broken warnings/errors for type-errors involving LOAD-TIME-VALUE
686 * bug fix: OPEN :IF-EXISTS :APPEND now returns correct FILE-POSITION before
687 first write (lp#561642).
688 * bug fix: compiled closures from EVAL could not be DESCRIBEd. (lp#824974)
689 * bug fix: bound propagation involving conversion of large bignums to
690 floats no longer signals a SIMPLE-TYPE-ERROR, reported by Lutz Euler.
692 * bug fix: &REST to &MORE conversion still works in unsafe call to known
693 functions; reported by Lutz Euler (lp#826459).
694 * bug fix: bogus deadlocks from interrupts and GCs. (lp#807475, regression
697 changes in sbcl-1.0.50 relative to sbcl-1.0.49:
698 * enhancement: errors from FD handlers now provide a restart to remove
699 the offending handler.
700 * enhancement: SB-INTROSPECT:FIND-DEFINITION-SOURCE now works on structure
702 * enhancement: location of user or system initialization file can now easily
703 be customized for saved cores. See: SB-EXT:*USERINIT-PATHNAME-FUNCTION*
704 and SB-EXT:*SYSINIT-PATHNAME-FUNCTION*.
705 * enhancement: SB-EXT:MAKE-THREAD accepts an argument list designator for
706 the thunk, as a keyword argument, :arguments.
707 * enhancement: constraint propagation is simplified (and sped up) when
708 COMPILATION-SPEED > SPEED.
709 * enhancement: SB-ALIEN exports alien type specifiers SIZE-T and OFF-T.
710 * enhancement: debugger understands &MORE arguments better.
711 * optimization: extracting bits of a single-float on x86-64 has been
712 optimized. (lp#555201)
713 * optimization: MAP and MAP-INTO are more efficient for non-simple vectors,
714 when (> SPEED SPACE).
715 * optimization: local call trampolines (x86 and x86-64) are emitted
717 * optimization: implicit value cells for dynamic-extent closed-over bindings
718 on x86 and x86-64 can hold unboxed values as well.
719 * meta-optimization: improved compilation speed, especially for large
720 functions. (lp#792363 and lp#394206)
721 * bug fix: bound derivation for floating point operations is now more
722 careful about rounding possibly closing open bounds. (lp#793771)
723 * bug fix: SB-POSIX:SYSCALL-ERROR's argument is now optional. (accidental
724 backwards incompatible change in 1.0.48.27)
725 * bug fix: occasional debugger errors in when a type-error occured in a
726 function with dynamic-extent &rest list.
727 * bug fix: &optional and &key supplied-p arguments in DEFSTRUCT
728 boa-construtors can be used to initialized structure slots.
729 * bug fix: FMAKUNBOUND removes the MACRO-FUNCTION, should one exist.
730 (lp#795705, regression)
731 * bug fix: DIRECTORY works better on logical pathnames.
732 * bug fix: RUN-PROGRAM no longer fails spuriously when argument strings
733 are of the order of ARRAY-TOTAL-SIZE-LIMIT. (lp#787237)
734 * bug fix: the compiler no longer constant-folds NaNs in
735 MAKE-{SINGLE,DOUBLE}-FLOAT. (lp#486812)
736 * bug fix: FORMAT now handles floating point rounding correct, eg.
737 (format nil "~,1F" 0.01) => "0.0" instead of "0.01" as previously.
739 * bug fix: style warning during lambda-list introspection of generic
740 functions with both optional and key argments.
741 * bug fix: regalloc doesn't barf on unused TNs due to type-directed constant
743 * bug fix: Fixed an off-by-one in MAP-ALLOCATED-OBJECTS that might have caused
746 changes in sbcl-1.0.49 relative to sbcl-1.0.48:
747 * minor incompatible change: WITH-LOCKED-HASH-TABLE no longer disables
748 interrupts for its body.
749 * enhancement: source locations are now available for files loaded as
750 source, compile-time-too evaluation, and initialization files.
751 * enhancement: WITH-COMPILATION-UNIT :SOURCE-NAMESTRING allows providing
752 virtual source-file information, eg. overriding input-file of COMPILE-FILE
753 when a temporary file is used for compilation.
754 * enhancement: ASDF has been updated to version 2.015.3.
755 * enhancement: backtraces involving frames from the default evaluator are
757 * enhancement: RUN-PROGRAM works with user-defined binary input and output
759 * enhancement: more informative compile-time warnings and runtime errors for
760 type-errors detected at compile-time.
761 * enhancement: deadlock detection for mutexes and spinlocks.
762 * enhancement: dynamic-extent for &rest lists stack allocate only their
763 spines, not their argumets. While portable code should not rely on this,
764 particularly in combination with inlining, it should make dynamic-extent
765 easier to use safely.
766 * enhancement: SB-POSIX improvements:
767 ** WNOHANG and WUNTRACED are exported.
768 ** SYSCALL-ERROR now also provides the name of the failing system call.
769 * enhancement: --script improvements:
770 ** errors on standard input, output, and error streams are handled and
771 cause scripts to exit silently, making them easier to use in shell
773 ** backtraces from scripts now go to standard error instead of the
774 terminal even if one is available.
775 ** --script can be an argument, causing the script to be loaded from
777 * enhancement: MAKE-ALIEN-STRING provides an easy way to transport lisp
778 strings to foreign memory.
779 * enhancement: (SETF GC-LOGFILE) allows logging garbage collections to
780 a file, making it easier to understand heap dynamics.
781 * optimization: using a &REST argument only in APPLY or VALUES-LIST calls
782 allows the compiler to automatically elide rest-list allocation so long as
783 the call sites are in functions that the compiler knows cannot escape.
785 * optimization: CALL-NEXT-METHOD using explicit arguments is faster,
786 especially in safe code when none of the required arguments have changed
788 * bug fix: blocking reads from FIFOs created by RUN-PROGRAM were
789 uninterruptible, as well as blocking reads from socket streams created
790 with for which :SERVE-EVENTS NIL. (regression from 1.0.42.43)
791 * bug fix: SET-SYNTAX-FROM-CHAR now removes dispatch-macro character syntax
792 from the to-char if the from-char is not a dispatch-macro character.
793 * bug fix: references to undefined variables in function calls that are
794 optimized away now signal a runtime error. (lp#722734)
795 * bug fix: miscompilation of MULTIPLE-VALUE-CALL when asserting derived
796 types from a function defined in the same file. (regression from
798 * bug fix: TRULY-THE forms are now macroexpandable and setf-expandable.
800 * bug fix: spurious errors during QUIT when standard streams were closed.
802 changes in sbcl-1.0.48 relative to sbcl-1.0.47:
803 * incompatible change: SB!KERNEL:INSTANCE-LAMBDA, deprecated for over five
804 years, is now no longer supported.
805 * enhancement: read() and write() have been added to SB-POSIX.
806 * enhancement: types of DEFSTRUCT constructors are proclaimed more
807 accurately, allowing better typechecking of call-sites.
808 * enhancement: errors during compile-time-too processing (i.e. EVAL-WHEN)
809 are no longer caught. (reverted to pre 1.0.34 behaviour)
810 * optimization: slightly faster ISQRT. (lp#713343)
811 * bug fix: better support for Solaris /bin/sh in sh-based tests.
812 * bug fix: TRACE behaves better when attempting to trace undefined
813 functions. (lp#740717)
814 * bug fix: missed optimizations for (FUNCALL (LAMBDA ...) ...) in comparison
815 to (FUNCALL #'(LAMBDA ...) ...).
816 * bug fix: ((LAMBDA ...) ...) forms with invalid argument counts resulted in
817 a compile-time error. (lp#720382)
818 * bug fix: forms such as (FUNCALL (FUNCTION NAME OOPS) ...) were compiled
820 * bug fix: less verbose source forms for functions from EVAL. (lp#747485)
821 * bug fix: sense of SLOT-BOUNDP-USING-CLASS was inverted in a MAKE-INSTANCE
822 optimization. (regression from 1.0.45.18/1.0.46.15)
823 * bug fix: package locks did not protects against compile-time side-effects
824 of DEFUN. (lp#675584)
825 * bug fix: --dynamic-space-size argument is validated more carefully.
827 * bug fix: memory fault from printing a malformed simple-condition.
829 * bug fix: redefining classes so that slot-definition classes change now
830 engages the obsolete instance protocol. (lp#766271)
831 * bug fix: constant improper lists could break source coverage recording.
833 * bug fix: compiling calls to eg. MEMBER with massive constant list arguments
836 changes in sbcl-1.0.47 relative to sbcl-1.0.46:
837 * bug fix: fix mach port rights leaks in mach exception handling code on
838 darwin/x86 and /x86-64. (thanks to Willem Oudshoorn for motivation and the
840 * enhancement: --script muffles style-warnings and compiler notes. (lp#677779)
841 * enhancement: redefinition warnings for macros from different files. (lp#434657)
842 * enhancement: better MACHINE-VERSION on Darwin x86 and x86-64. (lp#668332)
843 * enhancement: (FORMAT "foo" ...) and similar signal a compile-time warning. (lp#327223)
844 * enhancement: no more "in: LAMBDA NIL" messages from the compiler for forms
845 processed using EVAL -- now the appropriate toplevel form is reported instead.
846 * enhancement: more legible style-warnings for inappropriate IGNORE and IGNORABLE
847 declarations. (lp#726331)
848 * enhancement: :NOT-NULL option has been added to alien C-STRING type to indicate
849 that NIL/NULL is excluded from the type.
850 * enhancement: SB-INTROSPECT:MAP-ROOT allows mapping over pointers contained in
852 * optimization: SLOT-VALUE &co are faster in the presence of SLOT-VALUE-USING-CLASS
854 * optimization: core startup time is reduced by 30% on x86-64. (lp#557357)
855 * bug fix: SB-DEBUG:BACKTRACE-AS-LIST guards against potentially leaking
856 stack-allocated values out of their dynamic-extent. (lp#310175)
857 * bug fix: attempts to use SB-SPROF for wallclock profiling on threaded
858 x86-64 builds caused a type-error.
859 * bug fix: calling COMPILE with something else than a lambda-expression as the
860 second argument reports a more sensible error. (lp#718905)
861 * bug fix: invalid combinations of :PREDICATE and :TYPE options in DEFSTRUCT
862 are detected. (lp#520607)
863 * bug fix: constant keyword argument checking didn't take :ALLOW-OTHER-KEYS
865 * bug fix: SLOT-BOUNDP information is correct during MAKE-INSTANCE in the
866 presence of (SETF SLOT-VALUE-USING-CLASS) and SLOT-BOUNDP-USING-CLASS
867 methods. (regression from 1.0.45.18)
868 * bug fix: INITIALIZE-INSTANCE :AROUND methods supplying initargs via
869 CALL-NEXT-METHOD work correctly. (regression from 1.0.45.19)
870 * bug fix: several foreign functions accepting string also accepted NIL and
871 consequently caused a memory fault at 0 now signal a type-error instead.
873 * bug fix: under rare circumstances, constraint propagation could rewrite a
874 variable reference to refer to a variable not in scope, causing an error
875 during physical environment analysis when attempting to close over the
876 variable. (lp#551227)
877 * bug fix: SIMPLE-CONDITION :FORMAT-CONTROL defaults to NIL.
879 changes in sbcl-1.0.46 relative to sbcl-1.0.45:
880 * enhancement: largefile support on Solaris.
881 * enhancement: SB-PROFILE:REPORT now supports :LIMIT and :PRINT-NO-CALL-LIST
882 arguments (lp#710017)
883 * enhancement: SB-PCL:+SLOT-UNBOUND+ is exported, making it possible to
884 distinguish unbound instance slots when using STANDARD-INSTANCE-ACCESS
886 * optimization: ERROR and CERROR are approximately 5 times faster.
887 * optimization: optimized constructors are used for MAKE-INSTANCE of classes
888 with applicable non-standard (SETF SLOT-VALUE-USING-CLASS),
889 SLOT-BOUNDP-USING-CLASS, and INITIALIZE-INSTANCE :AROUND methods, speeding
890 up instance creation in those cases.
891 * optimization: arithmetic operations with multiple constant arguments in now
892 have them reduced at compile-time. (lp#676414)
893 * optimization: determining current character position on string-streams for
894 pretty-printing was overly slow.
895 * bug fix: local tail calls to DYNAMIC-EXTENT functions can no longer cause
896 lifetime analysis to overwrite closed-over variables (lp#681092).
897 * bug fix: encoding errors from some multibyte external formats such as EUC-JP
898 were not handled correctly (lp#713063).
899 * bug fix: printing waitqueue objects without setting *PRINT-CIRCLE* to T is now
901 * bug fix: Solaris/x86-64 wasn't getting built with lutex support by
902 mistake. (lp#667297).
903 * bug fix: CONSTANTLY generated functions had bogus lambda-lists. (lp#713626)
904 * bug fix: RUN-PROGRAM :PTY option was racy on OpenBSD. (lp#669485)
905 * bug fix: UNINTERN takes a symbol, not a symbol designator -- could previously
906 unintern the wrong symbol with the same name. (lp#693796)
907 * bug fix: COPY-PPRINT-DISPATCH always has access to a pristine table,
908 making it possible to restore the initial table if it has been messed up.
911 changes in sbcl-1.0.45 relative to sbcl-1.0.44:
912 * enhancement: ~/ and ~user/ are treated specially in pathnames.
913 Refer to documentation for details.
914 * enhancement: ASDF has been updated to version 2.010.
915 * optimization: mutated closed-over variables that are only accessed by
916 DYNAMIC-EXTENT closures (currently only FLET and LABELS functions
917 declared to be DYNAMIC-EXTENT) are stored directly in their containing
918 stack frame, rather than allocating a VALUE-CELL (lp#586103).
919 * optimization: UNWIND-PROTECT cleanup functions are now declared
921 * bug fix: backtracing function with &REST arguments now shows the full
922 argument list. (lp#310173)
923 * bug fix: return types for functions with complex lambda-lists are now
924 derived properly (lp#384892)
925 * bug fix: when SPEED > SPACE compiling CONCATENATE 'STRING with constant
926 long string arguments slowed the compiler down to a crawl.
927 * bug fix: closure VALUE-CELLs are no longer stack-allocated (lp#308934).
928 * bug fix: non-standard MAKE-METHOD-LAMBDA methods could break RETURN-FROM
929 in the DEFMETHOD body.
930 * bug fix: #<SB-C::DEFINED-FUN ...> should no longer appear in compiler
931 messages, being instead replaced with the corresponding function name.
932 * bug fix: don't derive overly complex unions of numeric types for arithmetic
933 operators. (lp#309448)
935 changes in sbcl-1.0.44 relative to sbcl-1.0.43:
936 * enhancement: RUN-PROGRAM accepts :EXTERNAL-FORMAT argument to select the
937 external-format for its :INPUT, :OUTPUT, AND :ERROR :STREAMs.
938 * enhancement: ALLOCATION-INFORMATION also provides the page the object
940 * enhancement: default dynamic-space size can be configured at build-time
941 without touching source, using the --dynamic-space-size argument to make.sh.
942 * enhancement: DESCRIBE recognizes symbols naming optimization policy
943 qualities, and mentions ALWAYS-BOUND declarations.
944 * enhancement: ATOMIC-INCF now supports AREF of (SIMPLE-ARRAY SB-EXT:WORD (*))
946 * enhancement: ASDF has been updated to 2.009.
947 * enhancement: the system detects known type-erros in calls better,
948 signalling a full warning about violated proclaimed FTYPEs and violations
949 of derived FTYPEs within the same file, including self-calls.
950 * enhancement: new function: SB-EXT:DELETE-DIRECTORY is now provided.
951 * optimization: constant-folding exploits numeric and character types, in
952 addition member types.
953 * optimization: numeric, character and member types that are inhabited by
954 exactly one value are tested with EQL.
955 * optimization: more conditional branches are eliminated during IR1.
956 Branches are simplified before performing if/if-conversion, and simple
957 equivalent branches (that only read the same constant or variable) are
959 * improvements to the Windows port:
960 ** change: canonical unparsing form for pathname namestrings now uses / as
961 directory separator. NATIVE-NAMESTRING still uses \ as the separator.
962 ** bug fix: stackoverwriting due to incorrect usage of PeekConsoleInput
963 on Windows. (thanks to Kalyanov Dmitry)
964 ** bug fix: build now works on cygwin with GCC 4.x installed. (thanks to
966 ** bug fix: run-sbcl.sh now works on Cygwin. (thanks to Kalyanov Dmitry)
967 * bug fix: compiler failed to derive the result-type of MAKE-ARRAY as
968 (AND VECTOR (NOT SIMPLE-ARRAY)) when appropriate. (lp#309130)
969 * bug fix: (THE (VALUES ...)) in LOAD-TIME-VALUE caused a compiler-error.
971 * bug fix: interrupts arriving during CL:OPEN caused an error.
972 * bug fix: overeager character buffering could cause input to block
973 spuriously when reading from a pipe (lp#643686)
974 * bug fix: more efficient timer expiry should avoid starvation on systems
975 where number of SIGALRMs per second is restricted. (lp#375515)
976 * bug fix: non-unicode builds no longer fail (broken since 1.0.36.15).
977 * bug fix: compile-times no longer scale linearly with the size of
978 quoted lists in source-code. (lp#654289)
979 * bug fix: better errors for unknown external-formats in OPEN. (lp#561974)
980 * bug fix: DEBUG>SPEED no longer degrades ALIEN-FUNCALL performance quite
981 so badly. (lp#654485)
982 * bug fix: SB-INTROSPECT:FIND-DEFINITION-SOURCES-BY-NAME no longer signals
983 an error for eg. STRUCTURE. (lp#458015)
984 * bug fix: LOOP WITH NIL = ... signalled an unused variable style-warning.
985 (lp#613871, thanks to Roman Marynchak)
986 * bug fix: more reliable &REST list type derivation. (lp#655203)
987 * bug fix: PPRINT-LOGICAL-BLOCK multiply-evaluated :PER-LINE-PREFIX,
988 and issued pointles code-deletion notes for it, :PREFIX, and :SUFFIX.
989 * bug fix: the compiler didn't utilize the proclaimed ftype for functions
990 also declared NOTINLINE. (lp#655581)
991 * bug fix: the compiler could attempt to emit constant left shifts of
992 greater value than n-word-bits. (lp#309063)
993 * bug fix: (SETF SYMBOL-FUNCTION) and (SETF FDEFINITION) clear derived
994 type information for the function being set. (lp#659220)
995 * bug fix: the system used to signal bogus STYLE-WARNINGs when functions
996 containing self-calls were recompiled with a new signature, and failed
997 to warn when a self-call using the old signature was left in. (lp#655126)
998 * bug fix: incorrect FILE-POSITION on streams opened using :EXTERNAL-FORMAT
999 :DEFAULT when the default external had character size other than 8 bits.
1001 * bug fix: derived types of functions in the same file were implicitly
1002 trusted, leading to potential heap corruption when those function were
1003 defined incompatibly. (lp#657499)
1004 * bug fix: existing ASDF source registries are ignored when building
1005 contribs (lp#659105)
1006 * bug fix: short-form DEFSETF checks that the second argument is a symbol
1007 (lp#655824, thanks to Roman Marynchak)
1008 * bug fix: (SETF MACRO-FUNCTION) clobbered macro-definitions before
1009 package-lock violation was detected. (lp#660752)
1010 * bug fix: the system can store different docstrings for a single function
1011 under different names. (lp#661631, regression from 1.0.29.24)
1012 * bug fix: source-locations of DEFGENERIC forms weren't getting recorded
1013 properly. (lp#384801)
1014 * bug fix: (COERCE X '(SIMPLE-VECTOR 5)) and similar coercions to vectors
1015 of specified length could confuse the type derivation in unsafe code.
1017 * bug fix: SB-POSIX:FORK now signals an error if an attempt to
1018 fork with multiple Lisp threads running is made on every platform,
1019 not just Darwin. (lp#451111)
1020 * bug fix: SB-BSD-SOCKETS and SB-SIMPLE-STREAMS could leave stale finalizers
1021 around when core was saved, which could cause undefined behaviour when the
1023 * bug fix: Allow UNTRACE of functions that are no longer defined
1024 (lp#667657, thanks to Attila Lendvai)
1025 * bug fix: MAKE-ARRAY calls with invalid keyword argument lists now signal a
1026 compile-time warning (lp#664373, thanks to Stas Boukarev)
1028 changes in sbcl-1.0.43 relative to sbcl-1.0.42:
1029 * incompatible change: FD-STREAMS no longer participate in the serve-event
1030 event-loop by default. (lp#316072)
1031 ** In addition to streams created by explicit calls to MAKE-FD-STREAM this
1032 affects streams from CL:OPEN.
1033 ** Streams from SOCKET-MAKE-STREAM still participate in serve-event by
1034 default, but this is liable to change: applications needing serve-event
1035 for socket streams should explicitly request it using :SERVE-EVENTS T
1037 * enhancement: SB-EXT:WORD type is provided for use with SB-EXT:ATOMIC-INCF
1039 * enhancement: CLOS effective method functions and defclass slot typechecking
1040 function now have debug names for use in backtraces and profiles.
1041 * enhancement: ASDF has been updated to version 2.004. (lp#605260, thanks to
1043 * enhancement: symbols are printed using fully qualified names in several
1044 error and warning messages which are often associated with package
1045 conflicts or mixups (lp#622789, thanks to Attila Lendvai)
1046 * bug fix: SB-BSD-SOCKETS:SOCKET-CONNECT was not thread safe. (lp#505497,
1047 thanks to Andrew Golding)
1048 * bug fix: reading /proc files on Linux works. (lp#425199)
1049 * bug fix: DOTIMES accepted literal non-integer reals. (lp#619393, thanks to
1051 * bug fix: WRITE-TO-STRING compiler macro binding special variable names,
1052 breaking code that tried to write the value of a printer control variable.
1053 (lp#581564, thanks to Stas Boukarev)
1054 * bug fix: WRITE compiler macro did not handle output stream designators
1055 correctly. (lp#598374, thanks to Stas Boukarev)
1056 * bug fix: better availability of names of foreign functions in backtraces
1057 on Linux. (lp#626962, thanks to Stas Boukarev)
1058 * bug fix: scripting and build for Solaris and FreeBSD. (lp#615497,
1059 lp#627581, thanks to Josh Elsasser and Jim Wise)
1060 * bug fix: build fixes for OpenBSD -current and 4.8 (lp#615489, lp#615492,
1061 thanks to Josh Elsasser)
1062 * bug fix: using aliases for builtin classes as defmethod specializers
1063 without adding DEFTYPEs for them works. (lp#618387)
1064 * bug fix: timetravel by getrusage() no longer causes type-errors during GC.
1066 * bug fix: legally dynamic-extent lists and vectors used as
1067 initialization arguments to MAKE-ARRAY can be stack allocated. (lp#586105)
1068 * bug fix: inline-expansion creating references to dead lambda-variables
1069 (lp#454681, thanks to Alexey Dejneka)
1070 * bug fix: better error message for bogus numerical arguments to RANDOM.
1071 (lp#598986, thanks to Stas Boukarev)
1072 * bug fix: the compiler occasionally inlined references from incompatible
1073 environments occurs. (lp#308951)
1074 * bug fix: the compiler threw an error when trying to compile a local
1075 function (labels or flet) known to take a specialized complex argument.
1076 (not in launchpad, reported by sykopomp in #lispgames)
1077 * bug fix: package-locks failed to protect against compile-time effects of
1078 DEFUN when the symbol previously had a macro definition. (lp#576637)
1079 * bug fix: spurious ignore warnings even given (DECLARE IGNORE) in methods
1080 when parameter bindings mutated. (reported by Faré Rideau; lp #611361)
1081 * bug fix: workaround for compiler hang in ORDER-UVL-SETS (lp#308914)
1082 * bug fix: evaluation in debugger REPL works using the global context when
1083 in frames that do not have sufficient debug information.
1084 * bug fix: exceeding FD_SETSIZE limit now results in an sensible error
1086 * bug fix: (SETF DOCUMENTATION) of a macro works properly. (lp#643958, thanks
1088 * bug fix: interrupt taking longer than the requested period caused SLEEP
1089 to hang on Darwin. (lp#640516, thanks to Joe Lebroco for the analysis)
1091 changes in sbcl-1.0.42 relative to sbcl-1.0.41
1093 ** Cross-compilation host is now specified to make.sh using
1094 command-line argument --xc-host=<command> instead of a positional
1095 argument. (thanks to Daniel Herring)
1096 ** Install location can be specified to make.sh using command-line
1097 argument --prefix=<path>. (lp#550889s, thanks to Daniel Herring)
1098 * optimization: The default implementation of
1099 COMPUTE-DISCRIMINATING-FUNCTION does much less wasted work.
1100 * enhancement: Explicit memory barrier operations are now available for use
1101 by multithreaded code. See documentation for details.
1102 * enhancement: Experimental support for threading on Linux/PPC.
1103 * bug fix: RENAME-PACKAGE returns the package. (Thanks to Eric Marsden)
1104 * bug fix: EXPT signals an error if first argument is a zero and second
1105 argument is a floating point zero. (lp#571581, thanks to Roman Marynchak)
1106 * bug fix: DEFTYPE signals an error for non-list lambda-lists.
1107 (lp#576594, thanks to Roman Marynchak)
1108 * bug fix: make ASDF-INSTALL compatible with the now-included ASDF2.
1109 (lp#612998, reported by Phil Hargett; patch from Jim Wise)
1111 changes in sbcl-1.0.41 relative to sbcl-1.0.40:
1112 * optimization: validity of observed keyword initargs to MAKE-INSTANCE is
1113 cached, leading to many fewer expensive calls to
1114 COMPUTE-APPLICABLE-METHODS.
1115 * optimization: in the (unoptimized) general method for MAKE-INSTANCE on a
1116 CLASS argument, search for and call an appropriate optimized ctor function
1118 * bug fix: WRITE always returns the correct value.
1120 changes in sbcl-1.0.40 relative to sbcl-1.0.39:
1121 * bug fix: readdir now works on :inode64 darwin builds (lp#592897)
1122 * bug fix: Name conflicts between symbols passed as arguments to a single
1123 call to IMPORT no longer add multiple symbols with the same name to the
1124 package (detectable via DO-SYMBOLS).
1125 * bug fix: support building without the dlshim on darwin x86 and x86-64
1127 * bug fix: TRACE :ENCAPSULATE NIL now works on ppc/linux.
1129 changes in sbcl-1.0.39 relative to sbcl-1.0.38:
1130 * bug fix: Backtrace from undefined function on x86 and x86-64 now show
1132 * bug fix: linkage-table entries on PPC now no longer overflow their
1133 space allocation (potentially causing crashes if they are written out
1135 * bug fix: Scrub control stack after scavenging in gencgc on non-x86oid
1136 platforms, preventing the GC from seeing stale pointers on the control
1137 stack in subsequent GCs (which would, and does, break invariants).
1138 * bug fix: 32-bit unicode external formats now work on big-endian systems.
1139 * bug fix: Literal characters with code points greater than about 32767
1140 now work on PPC UNICODE builds.
1141 * bug fix: Any noise left by SSE operations (sqrt and conversions) in the
1142 high order bits are explicitly cleared out. In some contrived situations,
1143 this could lead to wrong results in mixed real/complex float arithmetic.
1144 * bug fix: Fix function/macro redefinition warnings when building with
1145 clisp. (lp#576787, thanks to Josh Elsasser)
1146 * new platform: experimental support for ppc/openbsd (thanks to Josh
1148 * bug fix: Floating-point traps now work on ppc/linux.
1150 changes in sbcl-1.0.38 relative to sbcl-1.0.37:
1151 * incompatible change: Thread names are now restricted to SIMPLE-STRINGs
1152 like for any other thread-related datastructure, MUTEX, etc. (lp#547095)
1153 * deprecation: the SB-QUEUE contrib was merged into the SB-CONCURRENCY
1154 contrib module. New code should depend on SB-CONCURRENCY, not SB-QUEUE.
1155 * deprecation: SB-THEAD:GET-MUTEX was deprecated in favor of
1156 SB-THREAD:GRAB-MUTEX.
1157 * new contributed module: SB-CONCURRENCY is a new contrib; it's supposed to
1158 contain additional data structures and tools for concurrent programming;
1159 at the moment it contains a lock-free queue, and a lock-free mailbox
1161 * new feature: added SB-THREAD:GRAB-MUTEX; it's like the now deprecated
1162 GET-MUTEX but takes &key rather than &optional parameters. Also added
1163 :TIMEOUT argument to GRAB-MUTEX on non-sb-lutex platforms like Linux and
1165 * new feature: added SB-THREAD:TRY-SEMAPHORE, a non-blocking variant of
1166 SB-THREAD:WAIT-ON-SEMAPHORE.
1167 * new feature: SB-EXT:ATOMIC-DECF has been added as a companion to
1169 * new feature: a CANCEL-DEADLINE is associated with DEADLINE-TIMEOUT
1170 conditions to defer the deadline for forever.
1171 * enhancement: *STANDARD-OUTPUT*, *STANDARD-INPUT*, and *ERROR-OUTPUT* are
1173 * enhancement: errors from NO-APPLICABLE-METHOD and
1174 NO-PRIMARY-METHOD now have a RETRY restart available to retry the
1175 generic function call.
1176 * enhancement: SB-BSD-SOCKET improvements
1177 ** sockets and socket streams now have a more informative printed
1178 representation based on the corresponding SOCKET-NAME and
1180 ** SOCKET-MAKE-STREAM once more supports the :AUTO-CLOSE option.
1182 ** SOCKET-CLOSE now accepts :ABORT argument, which is passed on to
1183 CL:CLOSE when appropriate, and no longer disassociates the stream
1184 from the socket if close failed. (lp#543951)
1185 * improvements to the instrumenting profiler
1186 ** new feature: report per-function GC overhead. (thanks to John Fremlin)
1187 ** optimization: counters no longer use locks for the overflow mode.
1188 ** bug fix: whenever a profiling counter wrapped into overflow mode, it
1189 incurred an off-by-one miscount.
1190 * enhancement: improved MAKE-HASH-TABLE documentation (lp#543473)
1191 * enhancement: improved DEFMETHOD pretty-printing.
1192 * enhancement: perform range reduction when arguments are too large for
1193 x87's transcendentals (instead of returning 0). (lp#327192)
1194 * enhancement: eliminate some spurious TYPE-WARNINGs. Should help with
1195 some of CL-PPCRE's macros. (lp#570079)
1196 * enhancement: our machine code is slightly less hostile to valgrind on
1198 * enhancement: up-to-date versions of NetBSD-current are supported. (Thanks
1199 to Robert Swindells and Aleksej Saushev)
1200 * bug fix: correct restart text for the continuable error in MAKE-PACKAGE.
1201 * bug fix: a rare case of startup-time page table corruption.
1202 * bug fix: a semaphore with multiple waiters and some of them unwinding due
1203 to timeouts could be left in an inconsistent state.
1204 * bug fix: fix typo in "Reporting Bugs" section of the manual (lp#520366)
1205 * bug fix: misoptimization of multiplication by one in
1206 (SB-C::FLOAT-ACCURACY 0) policies.
1207 * bug fix: miscounts in SB-PROFILE.
1208 * bug fix: Fix lost wakeup bug between SB-THREAD:CONDITION-WAIT and
1209 CONDITION-NOTIFY on Linux. See threads "lost wakeup in condition-wait /
1210 condition-notify" (Feb 2010) and "Condition-Wait, Deadline handler, waking
1211 up itself" (March 2010) for further details.
1212 * bug fix: allow forward FIND and POSITION on lists to elide checking :END
1213 against length of the list if the element is found before the specified
1214 END is reached. (thanks to Alec Berryman, lp#554385)
1215 * bug fix: errors signalled during package graph modification no longer
1216 block FIND-SYMBOL and FIND-PACKAGE in other threads. (lp#511072)
1217 * bug fix: SB-POSIX build was broken when SBCL was compiled without the
1218 :SB-DOC feature. (lp#552564)
1219 * bug fix: SB-INTROSPECT build issues on GENGC/PPC. (lp#490490)
1220 * bug fix: more robust runtime executable path detection. (lp#375549)
1221 * bug fix: GCD always returns positive values. (lp#413680)
1222 * bug fix: Converting division to multiplication by reciprocal handles
1224 * bug fix: We were too eager in eliding range reduction tests on x87.
1225 The maximal magnitude is 2^63, not 2^64.
1226 * bug fix: Transforms for TRUNCATE don't die when the result is completely
1228 * bug fix: Maybe restore buildability on Alpha.
1229 * bug fix: READ-BYTE isn't inline anymore, fixing weird streams failures.
1231 * bug fix: RANDOM-STATE can be printed readably again.
1232 * bug fix: Unreadable objects were sometimes printed like #<\nFoo>.
1233 * bug fix: Using EQL with non-constant values of constant type (e.g. EQL
1234 types) could result in type mismatches during compilation.
1236 changes in sbcl-1.0.37 relative to sbcl-1.0.36:
1237 * enhancement: Backtrace from THROW to uncaught tag on x86oids now shows
1238 stack frame thrown from.
1239 * enhancement: WITH-COMPILATION-UNIT :POLICY allows restricting changes to
1240 compiler optimization qualities inside dynamic extent of its body.
1241 * enhancement: LOAD-LOGICAL-PATHNAME-TRANSLATIONS can be used to load
1242 translations from SYS:SITE;<HOST>.TRANSLATIONS.NEWEST (thanks to Michael
1244 * optimization: SLOT-VALUE and (SETF SLOT-VALUE) take advantage of
1245 constraint propgation, allowing better compilation eg. when used to
1246 access structures with WITH-SLOTS. (lp#520366)
1247 * optimization: the compiler is now more aware of the type of the underlying
1248 storage vector for multidimensional simple arrays resulting in better code
1249 for accessing such arrays.
1250 * optimization: passing NIL as the environment argument to TYPEP no longer
1251 inhibits optimizing it. (lp#309788)
1252 * optimization: more efficient register usage when handling single-float
1253 arguments on x86-64. (thanks to Lutz Euler)
1254 * optimization: ADJUST-ARRAY and STABLE-SORT on vectors no longer use
1255 pre-allocated temporary vectors. (lp#496249)
1256 * bug fix: Fix compiler error involving MAKE-ARRAY and IF forms
1257 in :INITIAL-CONTENTS. (lp#523612)
1258 * bug fix: FUNCTION-LAMBDA-EXPRESSION lost declarations from interpreted
1259 functions. (lp#524707)
1260 * bug fix: bogus style warnings from certain (SETF SLOT-VALUE) and
1261 WITH-SLOTS usages during compilation.
1262 * bug fix: SB-C::CLASS-INFO now prints correctly. (lp#514762)
1263 * enhancement: Can now build with ud2 instead of int3 as trap instruction on
1264 all x86oid platforms with :UD2-BREAKPOINTS target feature.
1265 * bug fix: Breakpoints now work when using ud2 instead of int3 as trap
1266 instruction (tested on x86oid linux with ud2-breakpoints).
1267 * bug fix: slam.sh now works on win32.
1268 * bug fix: better differences of numeric types. (lp#309124)
1269 * bug fix: arrays declared intersection and union types can have their
1270 upgraded element type derived. (lp#316078)
1271 * bug fix: SB-SPROF allocation profiling for all threads failed to profile
1272 threads started during profiling. (lp#472499)
1273 * bug fix: SB-INTROSPECT test failure when building without SB-EVAL feature.
1275 * bug fix: SB-CLTL2:DECLARATION-INFORMATION did not take
1276 SB-EXT:RESTRICT-COMPILER-POLICY into account. (lp#313337)
1277 * bug fix: Comma inside a backquoted array or structure resulted in nonsense
1278 values instead of signaling an error. (lp#309093)
1279 * bug fix: Spurious unused variable warning in a DEFSTRUCT edge case.
1281 * bug fix: More consistent warnings and notes for ignored DYNAMIC-EXTENT
1282 declarations (lp#497321)
1283 * bug fix: FIND and POSITION on lists did not check sequence bounds properly
1284 and failed to detect circular lists (lp#452008)
1285 * bug fix: leakage from ~/.asdf-install into the ASDf-INSTALL contrib build
1287 * bug fix: LOOP OF-TYPE VECTOR compile-time error. (lp#540186)
1288 * bug fix: SIGNAL SB-SYS:INTERACTIVE-INTERRUPT before entering the debugger
1289 due to it, so that handlers can run.
1290 * bug fix: reparsing undefined types if they have become defined since
1291 parsing. (lp#309128)
1292 * bug fix: missing &REST type in a proclamation for a function with both
1293 &REST and &KEY in lambda-list caused miscompilation (lp#458354)
1294 * bug fix: WHO-CALLS information for source-transformed and compiler-macro
1295 expanded calls (lp#542174)
1296 * bug fix: more accurate WHO-MACROEXPANDS information; point into rather
1297 than just at toplevel form.
1299 changes in sbcl-1.0.36 relative to sbcl-1.0.35:
1300 * new feature: SB-EXT:TYPEXPAND-1, SB-EXT:TYPEXPAND, and
1301 SB-EXT:TYPEXPAND-ALL behave exactly like their MACROEXPAND counterparts
1302 but work on type specifiers.
1303 * new feature: SB-EXT:DEFINED-TYPE-NAME-P returns whether a symbol is known
1304 to name a type specifier.
1305 * new feature: SB-EXT:VALID-TYPE-SPECIFIER-P returns whether a given type
1306 specifier is valid where "valid" basically means "would be accepted as
1307 second argument of TYPEP".
1308 * new feature: SB-INTROSPECT:FUNCTION-TYPE takes a function-designator and
1309 returns the function's declared, or derived FTYPE.
1310 * new feature: SB-POSIX now supports accessing the d_ino member of
1311 dirent structures. (Thanks to Philipp Marek and Pierre THEIRRY)
1312 * new feature: The function SB-EXT:SEED-RANDOM-STATE has been added to
1313 provide for seeding a RANDOM-STATE object with user-provided data or
1314 from the operating system's PRNG. Also, (MAKE-RANDOM-STATE T) will
1315 attempt to initialize the returned state from the operating system's
1316 PRNG where possible. (Thanks to Fare Rideau; launchpad bug lp#310116)
1317 * bug fix: Fix SB-SIMPLE-STREAMS:READ-VECTOR to correctly set the
1318 FILE-POSITION of the stream being read from. (launchpad bug lp#491087)
1319 * bug fix: Fix grammar and style issues for the docstrings of
1320 printer-related variables and functions. (Thanks to mon_key; launchpad
1322 * bug fix: Fix compilation on chenygc platforms. Thanks to Larry Valkama and
1324 * bug fix: SB-THREAD:CONDITION-WAIT sometimes signaled a deadline twice
1325 in a row even though a handler defered the deadline long into the
1327 * bug fix: A deadline handler was run without interrupts enabled for a
1328 deadline signaled within SB-THREAD:CONDITION-WAIT. That could result
1329 in infinitely spinning, non-killable threads.
1330 * bug fix: Backtrace from internal-errors on x86-64 os x was truncated
1331 before reaching the erring stack frame.
1332 * bug fix: Fix type derivation for EXPT when raising a fixnum to a
1333 real power. (launchpad bug lp#525949)
1334 * bug fix: Fix SB-EXT:GENERATION-* accessors for generations > 0 on
1335 GENCGC platforms. (launchpad bug lp#529014)
1336 * bug fix: More robust checks for invalid DEFMETHOD argument specializers.
1337 (launchpad bug lp#525916)
1338 * bug fix: Fix building on Darwin when sysctl is not in the user's PATH.
1339 (Thanks to Robert Goldman)
1341 changes in sbcl-1.0.35 relative to sbcl-1.0.34:
1342 * optimization: ROUND with a single single-float or double-float argument
1343 is properly inlined when possible.
1344 * optimization: Slightly better code is generated for integer<->float
1345 conversions and for single-float<->double-float conversions on x86-64.
1346 * optimization: SB-ROTATE-BYTE:ROTATE-BYTE now generates more efficient
1347 code for 32-bit and 64-bit rotations on x86-64.
1348 * bug fix: The install script changes the ownership of directories as well
1349 as files for contrib modules using asdf. (thanks to Eugene Ossintsev;
1350 launchpad bug lp#508485)
1351 * bug fix: TRUNCATE with a single single-float or double-float argument is
1352 properly inlined when possible. (launchpad bug lp#489388)
1353 * bug fix: Passing a rotation count of zero to SB-ROTATE-BYTE:ROTATE-BYTE
1354 no longer causes a compiler error on x86 and ppc.
1355 * bug fix: GET-MACRO-CHARACTER bogusly computed its second return value
1356 always relative to *READTABLE* rather than the passed argument.
1358 changes in sbcl-1.0.34 relative to sbcl-1.0.33:
1359 * minor incompatible change: threading support is now enabled by default
1361 * enhancement: SB-INTROSPECT:DEFTYPE-LAMBDA-LIST now also works on most
1363 * enhancement: Errors during compile-time-too processing (i.e. EVAL-WHEN)
1364 are now caught and reported just like errors during macroexpansion.
1365 * enhancement: SB-POSIX now provides access to tcdrain(), tcflow(),
1366 tcflush(), tcgetsid(), and tcsendbreak(). (thanks to Jerry James)
1367 * enhancement: ASDF systems can now depends on SB-QUEUE.
1368 * fixes and improvements related to Unicode and external formats:
1369 ** bug fix: error handling and restart usage in the ucs-2 external format
1371 ** there is now an implementation of the ucs-4 external format.
1372 ** the utf-16 and utf-32 external formats are supported.
1373 * bug fix: SB-POSIX wrapper for putenv no longer tries to put lisp strings
1374 in the environment. setenv() and unsetenv() are also provided. (reported by
1375 Fare Rideau; launchpad bug lp#460455)
1376 * bug fix: LOAD of both .fasl and .FASL type files now forces fasl-style
1377 loading. This ensures sensible errors for .FASL files from other
1378 implementations on case-insensitive filesystems. (reported by Willem
1379 Broekema; launchpad bug lp#489417)
1380 * bug fix: #p"\\\\" can now be read without error on Win32. (reported by
1381 Willem Broekema; launchpad bug lp#489698).
1382 * bug fix: some minor code rearrangements to reenable warning-free building
1383 from CMUCL (reported by xme@gmx.net; launchpad bug lp#491104)
1384 * bug fix: PRINT-OBJECT for clos instances respects the right margin when
1386 * bug fix: FIND-PACKAGE & DEFPACKAGE were not thread safe. (reported by
1389 changes in sbcl-1.0.33 relative to sbcl-1.0.32:
1390 * new port: support added for x86-64 NetBSD. (thanks to Aymeric Vincent)
1391 * improvement: support O_LARGEFILE access to files larger than 2GB on
1392 x86-64/linux. (thanks to Daniel Janus; launchpad bug lp#453080)
1393 * new feature: SB-INTROSPECT:WHO-SPECIALIZES-DIRECTLY to get a list of
1394 definitions for methods specializing on the passed class itself.
1395 * new feature: SB-INTROSPECT:WHO-SPECIALIZES-GENERALLY to get a list of
1396 definitions for methods specializing on the passed class itself, or on
1398 * new build flag: :sb-xref-for-internals; SBCL will collect xref information
1399 about itself during the build (e.g. for M-? in Slime), if this flag is
1400 enabled in customize-target-features.lisp. This will increase the core
1401 size by about 5-6mb, though, so it's mostly interesting to SBCL
1403 * new feature: various GENCGC tuning parameters have been experimentally
1404 documented and exported from SB-EXT. See documentation for details.
1405 * fixes and improvements related to Unicode and external formats:
1406 ** the Unicode character database has been upgraded to the
1407 Unicode 5.2 standard, giving names and properties to a number of new
1408 characters, and providing a few extra characters with case
1410 ** improvement: restarts for providing replacement input/output on coding
1411 errors for fd-stream external formats.
1412 ** improvement: where :<encoding> is a keyword corresponding to an
1413 external format the system supports, it is now possible to specify
1414 (:<encoding> :replacement <character>) as an external format which will
1415 automatically substitute <character> on encoding or decoding errors for
1416 streams and for STRING-TO-OCTETS and its inverse. (launchpad bug
1418 ** improvement: the file streams underlying the standard streams (such as
1419 *STANDARD-INPUT*, *TERMINAL-IO*) are opened with an external format
1420 which uses the replacement mechanism to handle encoding errors,
1421 preventing various infinite error chains and unrecoverable I/O
1423 ** minor incompatible change: the utf-8 external format now correctly
1424 refuses to encode Lisp characters in the surrogate range (char-codes
1425 between #xd800 and #xdfff).
1426 ** fix a typo preventing conversion of strings into octet vectors
1427 in the latin-2 encoding. (reported by Attila Lendvai; launchpad bug
1429 ** fix a bug in the octet multibyte handling of decoding errors and the
1430 USE-VALUE restart. (launchpad bug lp#314939)
1431 ** fix the bug underlying the expected failure in the FORCE-END-OF-FILE
1432 restart on fd-stream decoding errors.
1433 ** fix a bug in the ATTEMPT-RESYNC fd-stream decoding restart when the
1434 error is near the end of file.
1435 ** fix a double-error case in unibyte octet conversions, when the first
1436 use of USE-VALUE is ignored.
1437 ** fix bugs in handling of undefined code points in unibyte encodings.
1438 ** fix LISTEN (and consequent hangs in READ-CHAR-NO-HANG) on bivalent
1439 streams after an UNREAD-CHAR.
1440 * enhancement: SB-INTROSPECT:ALLOCATION-INFORMATION also reports if the
1441 object is allocated in a boxed region of dynamic space.
1442 * enhancement: SB-POSIX:FORK now signals an error if an attempt to
1443 fork with multiple Lisp threads running is made, instead of going
1444 ahead with unpredictable consequences. (reported by Leslie Polzer)
1445 * bug fix: uses of slot accessors on specialized method parameters within
1446 the bodies of SLOT-VALUE-USING-CLASS methods no longer triggers a type
1447 error while finalizing the class. This fix may cause classes with slot
1448 accessors to be finalized later than previously. (reported by Lars Rune
1449 Nøstdal; launchpad bug lp#473699)
1450 * bug fix: restore buildability on the MIPS platform. (regression from
1451 1.0.30.38, reported by Samium Gromoff)
1452 * bug fix: inspecting closures is less likely to fail with a type error.
1453 * bug fix: no timer starvation when setting the system clock back.
1454 (launchpad bug lp#460283)
1455 * bug fix: WITH-STANDARD-IO-SYNTAX now binds *PRINT-PPRINT-DISPATCH* to the
1456 standard pprint dispatch table as specified by CLHS.
1457 * bug fix: give CLISP a hint about a type declaration to enable it to build
1458 the cross-compiler without warnings. (thanks to Josh Elasser; launchpad
1460 * bug fix: correctly dump literal objects in defaulting forms of arglists.
1461 (reported by Attila Lendvai; launchpad bug lp#310132)
1462 * bug fix: distinguish in type specifiers between arrays that might be
1463 complex and arrays that are definitely complex. (launchpad bug lp#309129)
1464 * bug fix: SUBTYPEP knows that the SYMBOL type is not SUBTYPEP the KEYWORD
1465 type. (reported by Levente Mészáros; launchpad bug lp#485972)
1466 * bug fix: setting the value of a symbol-macro within a method in the
1467 presence of type declarations works properly again. (reported by Iban
1468 Hatchondo; launchpad bug lp#485019)
1470 changes in sbcl-1.0.32 relative to sbcl-1.0.31:
1471 * optimization: faster FIND and POSITION on strings of unknown element type
1472 in high SPEED policies. (thanks to Karol Swietlicki)
1473 * optimization: faster CONCATENATE 'STRING in low SPEED policies (reported
1475 * improvement: better error signalling for bogus parameter specializer names
1476 in DEFMETHOD forms (reported by Pluijzer)
1477 * bug fix: DELETE-FILE once again works on logical pathnames (regression
1479 * bug fix: LOGICAL-PATHNAME signals a TYPE-ERROR if pathspec is specified
1481 * bug fix: redefinition of a class via DEFCLASS without :DEFAULT-INITARGS
1482 removes previous default initargs (reported by Lars Rune Nøstdal and
1484 * bug fix: correct WHO-CALLS information for inlined lambdas with complex
1485 lambda-lists. (reported by Peter Seibel)
1486 * bug fix: SAVE-LISP-AND-DIE option :SAVE-RUNTIME-OPTIONS did not work
1487 correctly when starting from an executable core without saved runtime
1488 options (reported by Faré Rideau, thanks to Zach Beane)
1489 * bug fix: (SETF SLOT-VALUE) signalled a warning which should have been
1490 an optimization note instead. (reported by Martin Cracauer)
1491 * bug fix: WITH-SLOTS did not work with THE forms. (thanks to David Tolpin)
1492 * bug fix: Have RUN-PROGRAM with :INPUT T only run the subprocess in a
1493 new process group if it doesn't need to share stdin with the sbcl
1494 process. (thanks to Leslie Polzer)
1495 * bug fix: SATISFIES could be misoptimized to refer to a local function.
1496 (reported by Stanislaw Halik)
1498 changes in sbcl-1.0.31 relative to sbcl-1.0.30:
1499 * improvement: stack allocation is should now be possible in all nested
1500 inlining cases: failure to stack allocate when equivalent code is manually
1501 open coded is now considered a bug.
1502 * improvements related to Unicode:
1503 ** the Unicode character database has been upgraded to the
1504 Unicode 5.1 standard, giving names and properties to a number of new
1505 characters, and providing a few extra characters with case
1507 ** the system now recognizes and produces names for Unicode Hangul
1508 syllable characters.
1509 ** the EBCDIC-US external-format is now supported for octet operations
1510 (as well as for stream operations).
1511 * new feature: experimental :EMIT-CFASL parameter to COMPILE-FILE can
1512 be used to output toplevel compile-time effects into a separate .CFASL
1514 * optimization: COERCE to VECTOR, STRING, SIMPLE-STRING and recognizable
1515 one-dimenstional subtypes of ARRAY is upto 70% faster when the coercion is
1517 * optimization: TRUNCATE on known single- and double-floats is upto 25%
1519 * optimization: division of floating point numbers by constants uses
1520 multiplication by reciprocal when an exact reciprocal exists.
1521 * optimization: multiplication of single- and double-floats floats by
1522 constant two has been optimized.
1523 * optimization: ARRAY-IN-BOUNDS-P is resolved at compile-time when
1524 sufficient type information is available. (thanks to Leslie Polzer)
1525 * optimization: SLOT-VALUE and (SETF SLOT-VALUE) with constant slot names on
1526 known structure objects are as efficient as defstruct generated accessors.
1527 * optimization: unused vector creation can now be optimized away.
1528 * improvement: ASDF systems can now depends on SB-INTROSPECT.
1529 * improvement: a STYLE-WARNING is signalled when a generic function
1530 clobbers an earlier FTYPE proclamation.
1531 * improvement: the compiler is able to track the effective type of
1532 generic function across method addition and removal even in the
1533 absence of an explicit DEFGENERIC.
1534 * improvement: DESCRIBE now reports on symbols naming undefined
1535 but assumed or declared function as well.
1536 * improvement: recompilation of systems using SB-GROVEL now works
1537 (thanks to Leslie Polzer)
1538 * improvements to SB-CLTL2 (thanks to Larry D'Anna):
1539 ** functions DECLARATION-INFORMATION, PARSE-MACRO, and ENCLOSE have been
1541 ** AUGMENT-ENVIRONMENT and DEFINE-DECLARATION have been implemented.
1542 ** DECLARATION-INFORMATION now supports declaration name DECLARATION as
1543 well as user defined declaration names.
1544 ** VARIABLE-INFORMATION is now aware of alien variables.
1545 * improvement: improved address space layout on OpenBSD (thanks to Josh
1547 * improvement: pretty-printing of various Lisp forms has been improved
1548 (thanks to Tobias Rittweiler)
1549 * bug fix: calls to DECODE-FLOAT and INTEGER-DECODE-FLOAT whose value was
1550 unused were deleted in safe code. (reported by John Fremlin)
1551 * bug fix: a failing AVER compiling certain MAKE-ARRAY forms. (reported
1553 * bug fix: some out-of-line array predicates were missing (reported by
1555 * bug fix: a failing AVER in CONVERT-MV-CALL has been fixed. (thanks to
1557 * bug fix: a failing AVER in %ALLOCATE-CLOSURES conversion has been fixed
1558 (thanks to Larry D'Anna)
1559 * bug fix: SLEEP supports times over 100 million seconds on long on OpenBSD
1560 as well. (reported by Josh Elsasser)
1561 * bug fix: DELETE-FILE on streams no longer closes the stream with :ABORT T,
1562 leading to possible attempts to delete the same file twice. See docstring
1563 on DELETE-FILE for details. (reported by John Fremlin)
1564 * bug fix: DELETE-FILE once again deletes the file named by the pathname
1565 designator argument, rather than its truename. (reported by Luis
1567 * bug fix: the low-level debugger had 32-bit assumptions and was missing
1568 information about some array types. (thanks to Luis Oliveira)
1569 * bug fix: moderately complex combinations of inline expansions could
1570 be miscompiled if the result was declared to be dynamic extent.
1571 * bug fix: on x86, SAP-REF of sizes greater than 8 bits with offsets of the
1572 form (+ <variable> <integer>) were miscompiled under certain
1574 * bug fix: in some cases no compiler note about failure to stack allocate
1575 was emitted, even if the objects were in fact heap allocated.
1576 * bug fix: minor violation of "otherwise inaccessible" rule for stack
1577 allocation could cause objects users might reasonably expect to
1578 be heap allocated to be stack allocated.
1579 * bug fix: DESCRIBE signalled an error for generic functions under
1580 certain circumstances. (thanks to Leslie Polzer)
1581 * bug fix: Fixed spelling of an error message.
1583 changes in sbcl-1.0.30 relative to sbcl-1.0.29:
1584 * minor incompatible change: SB-THREAD:JOIN-THREAD-ERROR-THREAD and
1585 SB-THREAD:INTERRUPT-THREAD-ERROR-THREAD have been deprecated in favor
1586 of SB-THREAD:THREAD-ERROR-THREAD.
1587 * new contrib module: SB-QUEUE provides thread-safe lockless FIFO queues.
1588 * new feature: docstrings for local and anonymous functions are no longer
1589 discarded. (thanks to Leslie Polzer)
1590 * new feature: SB-THREAD:SYMBOL-VALUE-IN-THREAD provides access to symbol
1591 values in other threads.
1592 * new feature: SB-INTROSPECT:ALLOCATION-INFORMATION provides information
1593 about object allocation.
1594 * optimization: division of a real float by a complex float is implemented
1595 with a specialised code sequence.
1596 * optimization: MAKE-INSTANCE with non-constant class-argument but constant
1597 keywords is an order of magnitude faster.
1598 * optimization: MAKE-INSTANCE with constant keyword arguments is x2-4 faster
1599 in the presence of :AROUND or non-standard primary INITIALIZE-INSTANCE
1600 methods, and similarly for non-standard metaclass classes as long as there
1601 are no methods additional on MAKE-INSTANCE.
1602 * optimization: more efficient type-checks for FIXNUMs when the value
1603 is known to be a signed word on x86 and x86-64.
1604 * optimization: compiler now optimizes (EXPT -1 INTEGER), (EXPT -1.0 INTEGER),
1605 and (EXPT -1.0d0 INTEGER) into an ODDP test. (thanks to Stas Boukarev and
1607 * optimization: compiler is smarter about delegating argument type checks to
1609 * optimization: several character functions are now compiled somewhat more
1610 efficiently. (reported by Lynn Quam)
1611 * optimization: the compiler now derives simple types for LOAD-VALUE-FORMs.
1612 * improvement: less unsafe constant folding in floating point arithmetic,
1613 especially for mixed complex/real -float operations.
1614 * optimization: constant double and single floats are stored in native
1615 unboxed format on x86[-64].
1616 * optimization: smarter code for arithmetic operations with constant floats,
1617 complex floats, or integers on x86[-64].
1618 * optimization: smarter code for conjugate/multiplication of float complexes
1619 and abs/negate of floats on x86-64.
1620 * optimization: more efficient complex float and real float operations on
1622 * improvement: complex float division is slightly more stable.
1623 * improvement: DESCRIBE output has been reworked to be easier to read and
1624 contains more pertinent information.
1625 * improvement: failure to provide requested stack allocation compiler notes
1626 provided in all cases (requested stack allocation not happening without a
1627 note being issued is now considered a bug.)
1628 * bug fix: SB-POSIX exports the documented types and functions
1629 FILE-DESCRIPTOR and FILENAME, and also the corresponding -DESCRIPTOR
1630 types. (reported by "abhi")
1631 * bug fix: on 64 bit platforms FILL worked incorrectly on arrays with
1632 upgraded element type (COMPLEX SINGLE-FLOAT), regression from 1.0.28.55.
1633 (thanks to Paul Khuong)
1634 * bug fix: looping around HANDLER-CASE could silently consume stack space
1635 on each iteration. (reported by "foobar")
1636 * bug fix: better error signalling when calls to functions seeking elements
1637 from lists (eg. ADJOIN) are compiled with both :TEST and :TEST-NOT.
1638 (reported by Tobias Rittweiler)
1639 * bug fix: regressions in DIRECTORY from 1.0.28.61: pattern matching of
1640 directory components now works as it used to. (various prolems reported by
1641 Michael Becker, Gabriel Dos Reis, Cyrus Harmon, and Harald Hanche-Olsen)
1642 * bug fix: :PTY option in RUN-PROGRAM was broken with stream arguments.
1643 (reported by Elliot Slaughter, thanks to Stas Boukarev)
1644 * bug fix: bogus undefined variable warnings from fopcompiled references to
1645 global variables. (thanks to Lars Rune Nøstdal)
1646 * bug fix: foreign function names should now appear in backtraces on
1647 FC6 as well. (reported by Tomasz Skutnik and Tobias Rautenkranz)
1648 * bug fix: SETF compiler macro documentation strings are not discarded
1650 * bug fix: GENTEMP is now unaffected by pretty printer dispatch table.
1651 (thanks to Alex Plotnick)
1652 * bug fix: SLEEP accepts large integer arguments, truncating them to
1653 SIGNED-WORD on the assumption that sleeping for 68 years is sufficient
1654 for anyone. (reported by Leslie Polzer, thanks to Stas Boukarev)
1655 * bug fix: compiler notes for expensive slot type checks could be emitted
1656 at runtime MAKE-INSTANCE calls. (reported by Samium Gromoff)
1658 changes in sbcl-1.0.29 relative to 1.0.28:
1659 * IMPORTANT: bug database has moved from the BUGS file to Launchpad
1660 https://bugs.launchpad.net/sbcl
1661 Bugs can be reported directly there, or by sending email to
1662 sbcl-bugs@lists.sourceforge.net
1663 (no subscription required.)
1664 * minor incompatible change: under weak type checking policy integer
1665 types are weakened less aggressively.
1666 * minor incompatible change: SAVE-LISP-AND-DIE :TOPLEVEL function is now
1667 allowed to return, which causes SBCL to quit with exit status 0. Previously
1668 if the function returned with a small integer return value, that value
1669 was accidentally reused as the exit status.
1670 * new feature: SB-EXT:DEFINE-HASH-TABLE-TEST allows defining new arguments
1671 to MAKE-HASH-TABLE :TEST, and MAKE-HASH-TABLE has been extended with
1672 :HASH-FUNCTION argument. Refer to user manual for details.
1673 * new feature: SB-EXT:DEFGLOBAL macro allows defining global non-special
1675 * new feature: SB-EXT:GET-TIME-OF-DAY provides access to seconds and
1676 microseconds since the Unix epoch on all platforms.
1677 * new feature: SB-EXT:ALWAYS-BOUND proclamation inhibits MAKUNBOUND, and
1678 allows the compiler to safely elide boundedness checks for special
1680 * new feature: SB-EXT:GLOBAL proclamation inhibits SPECIAL proclamations for
1681 the symbol, prohibits both lexical and dynamic binding. This is mainly an
1682 efficiency measure for threaded platforms, but also valueable in
1684 * new feature: UNC pathnames are now understood by the system on Windows.
1685 * optimization: the compiler uses a specialized version of FILL when the
1686 element type is know in more cases, making eg. (UNSIGNED-BYTE 8) case
1688 * optimization: accesses to potentially non-simple arrays where element type
1689 is known are 50% faster.
1690 * optimization: compiler now generates faster array typechecking code.
1691 * optimization: ARRAY-DIMENSION is now faster for multidimensional and
1693 * optimization: multidimensional array accesses in the absence of type
1694 information regarding array rank are approximately 10% faster due to
1695 open coding of ARRAY-RANK.
1696 * optimization: result of (FILL (MAKE-ARRAY ...) ...) and (REPLACE
1697 (MAKE-ARRAY ...) ...) can be stack allocated if the result of MAKE-ARRAY
1699 * optimization: result of call to VECTOR can now be stack allocated.
1700 * optimization: MAKE-ARRAY with :INITIAL-CONTENTS is now vastly faster
1701 as long as the resulting array is one-dimensional and has a known
1702 element type. In particular, :INITIAL-CONTENTS (LIST ...) where the
1703 length of the list matches the known length of the vector does not
1704 allocate the list as an intermediate step. Ditto for VECTOR and simple
1706 * optimization: MAKE-ARRAY can now stack allocate in the presence of
1707 :INITIAL-CONTENTS and :INITIAL-ELEMENT as long as the result has a
1708 known element type, and is known to be simple and one dimensional.
1709 * improvement: SBCL now emits a compiler note where stack allocation was
1710 requested but could not be provided (not in all cases, unfortunately)
1711 * improvement: better MACHINE-VERSION responses. (thanks to Josh Elsasser)
1712 * improvement: pretty-printing loop has been implemented properly. (thanks
1713 to Tobias Rittweiler)
1714 * documentation: CLOS slot typechecing policy has been documented.
1715 * bug fix: FILE-AUTHOR no longer signals an error on Windows.
1716 * bug fix: SB-SPROF could be foiled by foreign code not have a frame
1717 pointer, leading to memory faults. (thanks to Bart Botta)
1718 * bug fix: better floating point exception handling on x86/OpenBSD.
1719 (thanks to Josh Elsasser)
1720 * bug fix: exit status from QUIT when called under --script was lost
1721 (reported by Hubert Kauker)
1722 * bug fix: MAKE-ARRAY for non-zero :INITIAL-ELEMENT always used the
1723 same implementation of FILL to initialize the array, even if a more
1724 efficient one was available (reported by Stas Boukarev, thanks to
1726 * bug fix: potential miscompilation of array stack allocation on x86 and
1727 x86-64. (reported by Time Tossavainen)
1728 * bug fix: some forms of AND, OR, and COND resulted in expansions that could
1729 result in their subforms being treated as top level forms. (reported by
1731 * bug fix: On x86/x86-64 alien functions declared to return integers shorter
1732 than a machine register could leave garbage in the high bits of the
1733 result register (bug 316325).
1734 * bug fix: disable address space randomization Linux/x86-64 as well,
1735 not just x86-64. (reported by Ken Olum)
1736 * bug fix: Attempting to DEREF an (ALIEN (* T)) would produce a WARNING and
1737 generate incorrect code.
1738 * bug fix: #201; type inference for CONS and ARRAY types could derive
1739 wrong results in the presence of eg. RPLACA or ADJUST-ARRAY.
1740 * bug fix: special variables with a proclaimed specific subtype of FUNCTION
1741 could not be assigned to or bound with PROGV. (reported by Lorenz
1743 * bug fix: the value of CL:- in the inspector was the previous expression
1744 evaluated rather than the expression being evaluated.
1745 * bug fix: constants can no longer be locally declared special.
1746 * bug fix: signals delivered to threads started from foreign land (read:
1747 directly by pthread_create, not by MAKE-THREAD) are redirected to a Lisp
1748 thread by blocking all signals and resignalling.
1749 * bug fix: SHARED-INITIALIZE initialized unbound :ALLOCATION :CLASS slots
1750 from :INITFORM, if any.
1752 changes in sbcl-1.0.28 relative to 1.0.27:
1753 * a number of bugs in cross-compilation have been fixed, with the ultimate
1754 result that building under (at least) clisp should be much more reliable.
1755 * minor incompatible changes: echo-streams now propagate unread-char to the
1756 underlying input stream, and no longer permit unreading more than one
1758 * improvement: on x86/x86-64 Lisp call frames now have the same layout as C
1759 frames, allowing for instance more reliable backtraces.
1760 * improvement: the debugger REPL can now reference lexical variables
1761 by name directly for code compiled with (DEBUG 3).
1762 * improvement: errors from malformed declarations now have better source
1763 paths associated with them. (thanks to Tobias Rittweiler)
1764 * optimization: faster local calls on x86/x86-64
1765 * bug fix: some error messages for out-of-bound array indexes confused the
1766 index and the bound. (thanks to Stas Boukarev)
1767 * bug fix: pretty printing malformed DEFPACKAGE forms (thanks to Sidney
1769 * bug fix: running regressions tests in shells without OSTYPE set now works.
1770 (reported by Harald Hanche-Olsen)
1771 * bug fix: more robust static space exhaustion signalling from
1772 MAKE-STATIC-VECTOR (thanks to Daniel Lowe)
1773 * bug fix: (SETF DOCUMENTATION) for anonymous function now throws the
1774 docstring away instead of storing it under names such as (LAMBDA (X)).
1775 (reported by Leslie Polzer)
1776 * bug fix: timers could go off in the wrong order, be delayed indefinitely
1777 (thanks to Ole Arndt for the patch)
1778 * bug fix: RESTART-FRAME and RETURN-FROM-FRAME stack corruption
1779 * bug fix: the discriminating function for PRINT-OBJECT no longer preserves
1780 potentially-invalid effective methods in its cache.
1781 * bug fix: SB-INTROSPECT:FIND-DEFINITION-SOURCE now works with funcallable
1782 instances as well (thanks to Paul Khuong)
1783 * bug fix: using RUN-PROGRAM does not interfere with SB-POSIX:WAIT,
1784 SB-POSIX:WAITPID and their C equivalents.
1785 * bug fix: RUN-PROGRAM does not crash on Darwin when stressed.
1787 changes in sbcl-1.0.27 relative to 1.0.26:
1788 * new port: support added for x86-64 OpenBSD. (thanks to Josh Elsasser)
1789 * new port: support added for x86-64 Solaris. (thanks to Alex Viskovatoff)
1790 * improvement: the system either recovers from stack exhaustion or dies
1791 properly as opposed to leaving the user uncertain of whether the handler
1792 trampled on some random memory next to the stack or having to rely on
1793 --lose-on-corruption (which is still a good idea to use in production
1794 because stack exhaustion can happen in signal handlers which will likely
1796 * bug fix: fix gc related interrupt handling bug on ppc (regression from
1797 1.0.25.37, reported by Harald Hanche-Olsen)
1798 * bug fix: work around signal delivery bug in darwin (regression from
1799 1.0.25.44, reported by Sidney Markowitz)
1800 * bug fix: fix ERROR leaking memory (reported by David Thompson)
1802 changes in sbcl-1.0.26 relative to 1.0.25:
1803 * incompatible change: an interruption (be it a function passed to
1804 INTERRUPT-THREAD or a timer function) runs in an environment where
1805 interrupts can be enabled. The interruption can use
1806 WITH-INTERRUPTS or WITHOUT-INTERRUPTS as it sees fit. Use
1807 WITHOUT-INTERRUPTS to avoid nesting of interruptions and
1808 potentially running out of stack. Keep in mind that in the absence
1809 of WITHOUT-INTERRUPTS some potentially blocking operation such as
1810 acquiring a lock can enable interrupts.
1811 * incompatible change: GC-OFF and GC-ON are removed, as they were
1812 always unsafe. Use WITHOUT-GCING instead.
1813 * new feature: runtime option --disable-ldb
1814 * new feature: runtime option --lose-on-corruption to die at the
1815 slightest hint of possibly non-recoverable errors: running out of
1816 memory, stack, alien stack, binding stack, encountering a memory
1817 fault, etc. In the absence of --lose-on-corruption a warning is
1819 * enhancement: detect binding stack exhaustion
1820 * enhancement: detect alien stack exhaustion on x86/x86-64
1821 * improvement: generally more stable and reliable interrupt handling
1822 * improvement: there is a per thread interruption queue,
1823 interruptions are executed in order of arrival
1824 * improvement: a repeating timer reschedules itself when the it has
1825 finished, but expiration times are spaced equally. If an
1826 expiration time is in the past it will trigger after a short grace
1827 period that may give a chance to other things to run.
1828 * optimization: slightly faster gc on multithreaded builds
1829 * optimization: faster WITHOUT-GCING
1830 * bug fix: when JOIN-THREAD signals an error, do it when not holding
1831 important locks so that the debugger/handler doesn't produce
1832 recursive errors or deadlock.
1833 * bug fix: real-time signals are not used anymore, so no more
1834 hanging when the system wide real-time signal queue gets full.
1835 * bug fix: INTERRUPT-THREAD on a dying thread could produce memory
1837 * bug fix: finalizers, gc hooks never run in a WITHOUT-INTERRUPTS
1838 * bug fix: fix random memory faults related to interrupts on alpha
1839 * bug fix: fix random memory faults related to interrupts on sparc
1840 * bug fix: fix deadlocks related to starting threads
1841 * bug fix: fix deadlines on locks on futex platforms
1842 * bug fix: restore errno in signal handlers
1843 * bug fix: fix deadlocks related to hash tables
1844 * bug fix: fix deadlocks in pcl
1846 changes in sbcl-1.0.25 relative to 1.0.24:
1847 * incompatible change: SB-INTROSPECT:FUNCTION-ARGLIST is deprecated, to be
1848 removed later. Please use SB-INTROSPECT:FUNCTION-LAMBDA-LIST instead.
1849 * new feature: SB-INTROSPECT:DEFTYPE-LAMBDA-LIST allows retrieval of
1850 DEFTYPE lambda lists. (thanks to Tobias Rittweiler)
1851 * enhancement: MUTEX-VALUE is to be superseded by MUTEX-OWNER that has a
1852 better name and does not return values so stale on multiprocessor systems.
1853 Also, HOLDING-MUTEX-P was added for about the only sane usage of
1855 * improvement: unithread builds keep track of MUTEX-VALUE.
1856 * improvement: reading from a TWO-WAY-STREAM does not touch the output
1857 stream anymore making it thread safe to have a concurrent reader and
1858 a writer, for instance, in a pipe.
1859 * improvement: GET-SETF-EXPANDER avoids adding bindings for constant
1860 arguments, making compiler-macros for SETF-functions able to inspect
1861 their constant arguments.
1862 * improvement: COMPILE-FILE reports times with millisecond accuracy
1863 (thanks to Luis Oliveira)
1864 * optimization: CHAR-CODE type derivation has been improved, making
1865 TYPEP elimination on subtypes of CHARACTER work better. (reported
1866 by Tobias Rittweiler, patch by Paul Khuong)
1867 * bug fix: setting alien structure fields of type struct by value now
1868 computes the right offset for the memory copy.
1869 * bug fix: compilation problem involving inlined calls to aliens with
1870 result type VOID. (reported by Ken Olum)
1871 * bug fix: #235a; sequential inline expasion in different policies no
1872 longer reuses the functional from the previous expansion site.
1873 * bug fix: DEFTYPE no longer breaks on bodies consisting of a single
1874 unquoted symbol. Regression from 1.0.22.8. (reported by Ariel Badichi)
1875 * bug fix: named ENUMs in multiply-referenced alien record types no longer
1876 cause an implied type redefinition. Regression from 1.0.21.29.
1877 * bug fix: sign-extension of small signed return values now works with C
1878 code compiled with gcc 4.3 or newer. (reported by Liam Healy)
1879 * improvements to the Windows port:
1880 ** SB-BSD-SOCKETS now works from saved cores as well. (reported by Stephen
1881 Westfold, thanks to Rudi Schlatte)
1883 changes in sbcl-1.0.24 relative to 1.0.23:
1884 * new feature: ARRAY-STORAGE-VECTOR provides access to the underlying data
1885 vector of a multidimensional SIMPLE-ARRAY.
1886 * new feature: the system now signals a continuable error if standard
1887 readtable modification is attempted. (thanks to Tobias Rittweiler)
1888 * new feature: DIRECTORY has been extended with a non-standard keyword
1889 argument :RESOLVE-SYMLINKS. (thanks to TC-Rucho)
1890 * enhancement: SB-BSD-SOCKETS:MAKE-SOCKET-STREAM keyword argument handling
1891 has been robustified and documented better. (thanks to Robert Goldman)
1892 * optimization: faster generic arithmetic dispatch on x86 and x86-64.
1893 * optimization: FORMAT ~D and ~F are now approximately 5% faster.
1894 * tradeoff: constant FORMAT control strings are now compiled unless
1895 SPACE > SPEED (previously only when SPEED > SPACE.)
1896 * bug fix: Red Hat Enterprise 3 mmap randomization workaround. (thanks
1898 * bug fix: DEFCLASS and ENSURE-CLASS-USING-CLASS are now expected to
1900 * bug fix: lexical type declarations are now correctly reported by
1901 SB-CLTL2. (reported by Larry D'Anna)
1902 * bug fix: STRING-TO-OCTETS did not handle :START properly when
1903 using UTF-8 as external format. (thanks to Luis Oliveira)
1904 * bug fix: errors from invalid fill-pointer values to (SETF FILL-POINTER)
1905 are signalled correctly. (thanks to Stas Boukarev)
1906 * bug fix: SET-MACRO-CHARACTER accepts NIL as the readtable
1907 designator. (thanks to Tobias Rittweiler)
1908 * bug fix: SET-DISPATCH-MACRO-CHARACTER accepts NIL as the readtable
1909 designator, and returns T instead of the function. (thanks to
1911 * bug fix: direct superclasses of STANDARD-CLASS and
1912 FUNCALLABLE-STANDARD-CLASS now default to STANDARD-OBJECT and
1913 FUNCALLABLE-STANDARD-OBJECT as required by AMOP.
1914 * bug fix: compiling a call to SLOT-VALUE with a constant slot-name
1915 when no class with the named slot yet exists no longer causes a
1916 compile-time style-warning.
1917 * bug fix: :ALLOCATION :CLASS slots are type-checked properly
1918 in safe code. (reported by Didier Verna)
1919 * bug fix: #430; nested structure constructors can stack allocate.
1920 * bug fix: on some 64-bit platforms dynamic space size was truncated
1921 to #xffff0000 bytes. (reported by Benjamin Lambert)
1922 * bug fix: setting *READ-SUPPRESS* to T no longer renders the default
1923 REPL unusable. (reported by Daniel Herring)
1924 * bug fix: return values of READ-SEQUENCE did not take :START into
1925 account on file streams, regressions since 1.0.12.22. (reported by
1926 Thomas Russ, patch by Paul Khuong)
1927 * bug fix: using SET or (SETF SYMBOL-VALUE) to change the value of a
1928 method specializer used to confuse permuation vector optimization.
1929 * bug fix: system inserted bogus implicit type declarations for local
1930 special variables in DEFMETHOD bodies.
1931 * bug fix: #354; duplicated frames in backtraces due to
1932 non-tail-call-optimized XEPs to functions with return type NIL
1934 * bug fix: #357; MAKE-INSTANCE/SHARED-INITIALIZE now
1935 initializes structure object slots according to DEFSTRUCT initforms,
1936 and DEFSTRUCT forms :INCLUDEind structure classes defined using
1937 DEFCLASS :METACLASS STRUCTURE-CLASS now inherit their initforms.
1938 (reported by Bruno Haible and Stephen Wilson)
1939 * bug fix: #395; fill-pointer output streams used now support
1940 element-type BASE-CHAR as well.
1941 * bug fix: compiler error when attempting to derive return value of
1942 ARRAY-ELEMENT-TYPE when the array type was a union of intersection
1944 * bug fix: address-spaces overlapped on OpenBSD. (thanks to Josh
1946 * bug fix: Mac OS X binaries should now be portable between Leopard
1949 changes in sbcl-1.0.23 relative to 1.0.22:
1950 * enhancement: when disassembling method functions, disassembly
1951 for the associated fast function is also produced.
1952 * enhancement: system stores DEFTYPE lambda-lists, so DESCRIBE can
1954 * optimization: printing with *PRINT-PRETTY* true is now more
1955 efficient as long as the object being printed doesn't require
1956 special handling by the pretty printer.
1957 * bug fix: slot symbol-macros from WITH-SLOTS inside DEFMETHOD bodies
1958 now interact correctly with type declarations.
1959 * partial bug fix: PCL detects infinite recursion during wrapper
1960 validation. (thanks to Attila Lendvai)
1961 * bug fix: #426; nested function calls are inlined properly.
1962 Previously if FOO was an inline function, in calls of the form
1963 (FOO (FOO ...)) the outer call was not inlined.
1964 * bug fix: long long arguments passed in registers to alien
1965 functions on PowerPC Linux and NetBSD are now handled correctly
1966 when preceded by SYSTEM-AREA-POINTERs. (reported by Josh Elsasser)
1968 changes in sbcl-1.0.22 relative to 1.0.21:
1969 * minor incompatible change: LOAD-SHARED-OBJECT no longer by default looks
1970 for the shared object in the current directory, but passes the native
1971 namestring of the designated pathname to the operation system's shared
1972 object loading function as-it.
1973 * minor incompatible change: --disable-debugger toplevel option now takes
1974 effect before processing of initialization files and --eval or --load
1976 * new feature: new commandline argument: --script, which supports
1977 shebang lines. See documentation for details. (based on work by
1979 * new feature: SAVE-LISP-AND-DIE can save current values of
1980 --dynamic-space-size and --control-stack-size in the executable core,
1981 causing it to skip normal runtime option processing. See documentation
1982 for details. (thanks to Zach Beane)
1983 * enhancement: inoccous calls to EVAL or generic functions dispatching
1984 on subclasses of eg. STREAM no longer cause compiler notes to appear.
1985 * enhancement: the system no longer resignals errors from --load and
1986 --eval toplevel arguments as SIMPLE-ERRORS, which caused restarts
1987 associated with the original error to be lost. (thanks to Ariel
1989 * enhancement: :DONT-SAVE keyword argument has been added to
1990 LOAD-SHARED-OBJECT for controlling interaction with
1991 SAVE-LISP-AND-DIE, and UNLOAD-SHARED-OBJECT can be used to undo
1992 the effects of an earlier LOAD-SHARED-OBJECT call.
1993 * bug fix: ADJUST-ARRAY on multidimensional arrays used bogusly give
1994 them a fill pointer unless :DISPLACED-TO or :INITIAL-CONTENTS were
1995 provided. (reported by Cedric St-Jean)
1996 * bug fix: circularity handling in the reader did not treat raw
1997 structure slots correctly. (reported by Cedric St-Jean)
1998 * bug fix: SERVE-EVENT occasionally signaled an error about bogus
1999 file descriptors when there were none.
2000 * bug fix: DEFINE-COMPILER-MACRO support of destructuring lambda-lists
2001 was broken. (reporteed by Willem Broekema)
2002 * bug fix: SB-EXT:NATIVE-NAMESTRING on Windows did not work on
2003 pathnames without a directory.
2004 * bug fix: COMPILE-FILE did not warn about undefined variable
2005 references at toplevel, and LOAD of the resulting fasl did
2006 not signal an error.
2007 * bug fix: functions with non-required arguments used to end up with
2008 (SB-C::&OPTIONAL-DISPATCH ...) as their name.
2009 * bug fix: redefining a function with non-required arguments didn't
2010 update the system's knowledge about its call signature properly.
2011 * bug fix: fixed #431; incompatible alien record type redefinitions
2012 are detected and handled. (reported by Neil Haven)
2013 * bug fix: using RESTRICT-COMPILER-POLICY with DEBUG 3 could cause
2014 PROGV miscompilation. (reported by Matthias Benkard, patch by Juho
2016 * bug fix: on x86 and x86-64 backtraces were sometimes truncated
2017 after alien stack frames.
2018 * bug fix: strings passed to mk{s,d}temp lacked null termination
2020 changes in sbcl-1.0.21 relative to 1.0.20:
2021 * new feature: the compiler is able to track the effective type of a
2022 generic function across method addition and removal.
2023 * new feature: SB-EXT:ATOMIC-INCF allows atomic incrementation of
2024 appropriately typed structure slots without locking.
2025 * new feature: SB-EXT:CALL-WITH-TIMING provides access to timing
2026 information like those gathered by TIME using a programming-friendly
2028 * new feature: TIME reports time taken even if the form performs a
2029 non-local transfer of control.
2030 * enhancement: reduced conservativism on GENCGC platforms: on
2031 average 45% less pages pinned (measured from SBCL self build).
2032 * bug fix: SB-EXT:COMPARE-AND-SWAP on SYMBOL-VALUE can no longer
2033 mutate constant symbols or violate declaimed type of the symbol.
2034 * bug fix: SB-THREAD:SIGNAL-SEMAPHORE could fail to wakeup threads
2035 sleeping on the semaphore in heavily contested semaphores.
2036 * bug fix: semaphores and condition variables were not interrupt
2038 * bug fix: SB-THREAD:CONDITION-WAIT doesn't allow waits on mutexes
2039 owned by other threads anymore.
2040 * bug fix: FIND on lists called KEY outside the specified
2041 subsequence. (reported by budden)
2042 * bug fix: LOG doesn't use single-float intermediate results when
2043 given mixed integer and double-float arguments, leading to better
2044 precision. (reported by Bob Felts)
2045 * bug fix: LOG with base zero returned values of inconsistent type.
2047 changes in sbcl-1.0.20 relative to 1.0.19:
2048 * minor incompatible change: OPTIMIZE qualities
2049 SB-C::STACK-ALLOCATE-DYNAMIC-EXTENT, SB-C::STACK-ALLOCATE-VECTOR,
2050 and SB-C::STACK-ALLOCATE-VALUE-CELLS no longer exist. See documentation
2051 and SB-EXT:*STACK-ALLOCATE-DYNAMIC-EXTENT* for details.
2052 * documentation: some slot access efficiency guidelines have been
2053 added to the user manual.
2054 * optimization: ASSOC-IF, ASSOC-IF-NOT, MEMBER-IF, MEMBER-IF-NOT,
2055 RASSOC, RASSOC-IF, and RASSOC-IF-NOT are now equally efficient
2056 as ASSOC and MEMEBER.
2057 * optimization: calls to ASSOC, MEMBER, and RASSOC can be transformed
2058 to more efficient EQ-comparison versions more often.
2059 * optimization: enhanced derivation of DOLIST iteration variable type
2061 * optimization: constant folding of simple (LIST ...) forms as DOLIST
2063 * optimization: runtime lookup of function definitions can be
2064 elided in more cases, eg: (let ((x 'foo)) (funcall foo)).
2065 * optimization: compiler is able to derive the return type of
2066 (AREF (THE STRING X) Y) as being CHARACTER.
2067 * optimization: CLRHASH on empty hash-tables no longer does pointless
2068 work. (thanks to Alec Berryman)
2069 * optimization: REPLACE deftransforms don't punt when :START1 or
2071 * bug fix: compiling DESTRUCTURING-BIND on constant list arguments
2072 no longer emits a code deletion note. (reported by Andrew
2074 * bug fix: bogus odd-number-of-keywords STYLE-WARNINGs from calls to
2075 functions with an odd number of &OPTIONAL arguments, a &REST
2076 argument, and one or more &KEY arguments at the call site.
2077 * bug fix: STYLE-WARNINGs for functions with both &OPTIONAL and &KEY
2078 arguments appeared at call sites as well.
2079 * bug fix: fixed #425; CLOSE drops input buffers from streams, so
2080 READ-LINE &co can no longer read from them afterwards. (reported
2082 * bug fix: fixed #427: unused local aliens no longer cause compiler
2083 breakage. (reported by Stelian Ionescu, Andy Hefner and Stanislaw
2085 * bug fix: non-local exit from a WITH-ALIEN form no longer causes
2086 alien-stack leakage. (reported by Andy Hefner)
2087 * bug fix: PROGV signals an error when an attempt to violate declared
2088 type of a variable or bind a constant is made.
2089 * bug fix: SET signals an error when an attempt to violate declared
2090 type of a variable is made.
2091 * bug fix: restart computation during the execution of a restart
2092 test function no longer causes infinite recursion. (reported by
2094 * bug fix: calling SB-COVER:REPORT with a non-directory pathname now
2095 signals an error. (thanks to Pierre Mai)
2096 * bug fix: EXPORT left symbol unexported in conflict situations.
2097 (thanks to Michael Weber)
2098 * bug fix: correctly handle name conflicts involving CL:NIL.
2099 (thanks to Michael Weber)
2100 * bug fix: RESOLVE-CONFLICT restart for name conflicts handles
2101 conflicts arising from USEing package with conflicting symbols
2102 correctly. (thanks to Michael Weber)
2104 changes in sbcl-1.0.19 relative to 1.0.18:
2105 * new feature: user-customizable variable SB-EXT:*MUFFLED-WARNINGS*;
2106 warnings that go otherwise unhandled will be muffled if they are
2107 of the type that's the value of this variable.
2108 * optimization: stack allocation is slightly more efficient on x86
2110 * bug fix: DEFSTRUCT forms with user-specified :CONSTRUCTOR options,
2111 where a raw slot always is initialized using the initform whose
2112 type is not know sufficiently well a compile-time are now compiled
2113 correctly. (reported by John Morrison)
2114 * bug fix: compiler no longer makes erronous assumptions in the
2115 presence of non-foldable SATISFIES types.
2116 * bug fix: stack analysis missed cleanups of dynamic-extent
2117 arguments in non-let-converted calls to local functions.
2118 * improvements to the Windows port:
2119 ** adjusted address spaces for building on both Win32 and
2120 Win64. (thanks for John Connors)
2121 * fixed some bugs revealed by Paul Dietz' test suite:
2122 ** interval arithmetic during type derivation used inexact integer
2123 to single-float coercions.
2124 ** arithmetic operations involving large integers and single
2125 floats give the same results in compiled and interpreted code.
2126 ** deriving the result type of COERCE no longer signals an error
2127 if the derived type of the second argument is a MEMBER type
2128 containing invalid type specifiers.
2129 ** ADJOIN with constant NIL as second argument works correctly.
2130 ** FUNCTION-KEYWORDS was called SB-PCL::FUNCTION-KEYWORD-PARAMETERS.
2132 changes in sbcl-1.0.18 relative to 1.0.17:
2133 * minor incompatible change: SB-SPROF:WITH-PROFILING now by default
2134 profiles only the current thread.
2135 * minor incompatible change: changes to SYMBOL-VALUE of constants
2136 defined with DEFCONSTANT now signal an error.
2137 * enhancement: SB-SPROF now has support for wallclock profiling,
2138 and is also able to profile specific threads. REPORT output
2139 has also additional sorting options.
2140 * enhancement: better pretty-printing of DEFPACKAGE forms. (Thanks
2142 * optimization: structure allocation has been improved
2143 ** constructors created by non-toplevel DEFSTRUCTs are ~40% faster.
2144 ** out of line constructors are ~10% faster.
2145 ** inline constructors are ~15% faster.
2146 ** inline constructors are capable of dynamic extent allocation
2147 (generally on x86 and x86-64, in some cases on other platforms
2149 * optimization: simple uses of HANDLER-CASE and HANDLER-BIND no
2151 * optimization: file compiler is now able to coalesce non-circular
2152 lists, non-base strings, and bit-vectors. Additionally, constants
2153 are never referenced through SYMBOL-VALUE at runtime.
2154 * optimization: code defining methods on PRINT-OBJECT (and other
2155 generic functions in the COMMON-LISP package) now loads faster.
2156 * bug fix: EAI_NODATA is deprecated since RFC 3493. Stop using it
2158 * bug fix: if COMPILE-FILE aborts due to an unwind, the partial
2159 fasl is now deleted. (reported by Attila Lendvai)
2160 * bug fix: READ-LINE always returned NIL for the last line in files.
2161 (reported by Yoshinori Tahara)
2162 * bug fix: more accurate disassembly annotations of foreign function
2163 calls. (thanks to Andy Hefner)
2164 * bug fix: trimming non-simple strings and non-string string
2165 designators when the there is nothing to trim works properly.
2166 (thanks to James Knight)
2167 * new feature: SB-POSIX bindings for mlockall, munlockall, and setsid.
2168 (thanks to Travis Cross)
2169 * fixed some bugs revealed by Paul Dietz' test suite:
2170 ** NIL is a valid function name (regression at 1.0.13.38)
2171 ** FILL on lists was missing its return value (regression at 1.0.12.27)
2172 ** STRING-TRIM, STRING-LEFT-TRIM, and STRING-RIGHT-TRIM did not respect
2173 fill pointers properly (regression at 1.0.12.23)
2174 ** STRING-TRIM, STRING-LEFT-TRIM, and STRING-RIGHT-TRIM did not respect
2175 displacement indices properly (regression at 1.0.12.23)
2177 changes in sbcl-1.0.17 relative to 1.0.16:
2178 * temporary regression: user code can no longer allocate closure
2179 variable storage on stack, due to bug 419 without explicitly
2180 requesting it. Please consult sbcl-devel for advice if you need to
2181 use this feature in the meanwhile.
2182 * new feature: runtime argument --control-stack-size can be used to
2183 adjust thread default control stack size.
2184 * enhancement: improved TIME output
2185 ** all times are reported using the measured accuracy (milliseconds
2186 for real and GC times, microseconds for everything else.)
2187 ** processor cycle counts on x86 and x86-64.
2188 ** interpreted forms are counted for both evaluator modes.
2189 ** number of lambdas converted by the compiler is reported.
2190 ** CPU percentage report (computed from real and total run time.)
2191 ** more comprehensive run time reporting, using a condenced format
2192 ** interperted form, lambda, and page fault counts are omitted
2194 * optimization: ADJOIN and PUSHNEW are upto ~70% faster in normal
2196 * optimization: APPEND is upto ~10% faster in normal SPEED policies.
2197 * optimization: two argument forms of LAST are upto ~10% faster
2198 in normal SPEED policies.
2199 * optimization: NCONC no longer needs to heap cons its &REST list
2200 in normal SPEED policies.
2201 * bug fix: SB-FLUID build feature no longer breaks the build. (thanks
2202 to Sidney Markowitz)
2203 * bug fix: UNION and NUNION work with :TEST-NOT once more,
2204 regression since 1.0.9.1. (thanks to Eric Marsden)
2205 * bug fix: result of MAKE-ARRAY can be stack allocated - regression
2206 since 1.0.15.36. (thanks to Paul Khuong)
2207 * bug fix: LAST when always returned the whole list when given a bignum
2208 as the second argument.
2209 * bug fix: dynamic extent allocation of nested lists and vectors
2210 could leak to otherwise accessible parts.
2211 * bug fix: invalid optimization of heap-allocated alien variable
2213 * bug fix: fasl header checking is less vulnerable to different
2214 platform word lengths.
2215 * bug fix: more correct assembler syntax for GNU binutils
2216 2.18.50.0.4 support. (thanks to Marijn Schouten)
2217 * bug fix: fix ECASE warnings from CMUCL-as-xc-host. (reported by
2219 * bug fix: the fopcompiler can handle LOCALLY forms (with no
2220 declarations) successfully. (reported by Attila Lendvai)
2222 changes in sbcl-1.0.16 relative to 1.0.15:
2223 * minor incompatible change: revert the changes to sb-posix's error
2224 signaling added in 1.0.14.
2225 * minor incompatible change: change PROBE-FILE back to returning
2226 NIL whenever we can't get a truename, as was the case before 1.0.14.
2227 * minor incompatible change: SB-BSD-SOCKETS:NAME-SERVICE-ERROR now
2228 inherits from ERROR instead of just CONDITION.
2229 * new feature: SB-INTROSPECT can provide source locations for instances
2230 as well. (thanks to Tobias Rittweiler)
2231 * optimization: binding special variables now generates smaller code
2232 on threaded platforms.
2233 * optimization: MEMBER and ASSOC are over 50% faster for :TEST #'EQ
2234 and cases where no :TEST is given but the compiler can infer that
2235 the element to search is of type (OR FIXNUM (NOT NUMBER)).
2236 * optimization: better LOGNOT on fixnums.
2237 * optimization: modular arithmetic for a particular requested width
2238 is implemented using a tagged representation unless a better
2239 representation is available.
2240 * fixed bug 423: TRULY-THE and *CHECK-CONSISTENCY* interaction.
2241 * bug fix: SB-BSD-SOCKETS:MAKE-INET-ADDRESS checks the input string
2242 for wellformedness and returns a specialized vector. (reported by
2243 Francois-Rene Rideau)
2244 * bug fix: FIND-CLASS was not thread-safe. (reported by Attila Lendvai)
2245 * bug fix: ~R was broken for vigtillions. (thanks to Luis Oliveira)
2246 * bug fix: attempt to obtain *SCHEDULER-LOCK* recursively when
2247 unscheduling timer at the same time as another timer fires.
2248 * bug fix: don't reschedule timers for dead threads.
2249 * bug fix: periodic polling was broken. (thanks to Espen S Johnsen)
2250 * bug fix: copying output from RUN-PROGRAM to a stream signalled
2251 bogus errors if select() was interrupted.
2252 * enhancement: add support for fcntl's struct flock to SB-POSIX.
2254 changes in sbcl-1.0.15 relative to sbcl-1.0.14:
2255 * enhancement: cleaner backtraces for interactive interrupts, as
2256 well as other cases where the interesting frames used to be
2257 obscured by interrupt handling frames.
2258 * enhancement: untracing a whole package using (UNTRACE "FOO") is
2259 now supported, and tracing a whole package using (TRACE "FOO") now
2260 traces SETF-functions as well.
2261 * enhancement: implement SB-POSIX:MKTEMP and SB-POSIX:MKDTEMP.
2262 * SB-DEBUG:PRINT-FRAME-CALL now prints the entry-point kind even
2263 when SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS* is NIL.
2264 * unreadably printed representation of hash-tables now includes
2266 * bug fix: partially fixed #188: type propagation from assignments
2267 is now more efficient.
2268 * bug fix: fixed #407: (COERCE X 'SINGLE-FLOAT) and (COERCE X
2269 'DOUBLE-FLOAT) are not flushable.
2270 * bug fix: on x86 and x86-64 pointer based EQ-hashing now uses the
2271 full address of the object, and none of the tag bits.
2272 * bug fix: readably printing hash-tables now respects other printer
2273 control variables. (reported by Cedric St-Jean)
2274 * bug fix: compiler gave a bogus STYLE-WARNING for the :SYNCHRONIZED
2275 keyword with MAKE-HASH-TABLE.
2276 * bug fix: export SB-POSIX:MKSTEMP.
2277 * bug fix: SORT was not interrupt safe.
2278 * bug fix: XREF accounts for the last node of each basic-block as
2280 * bug fix: MAKE-INSTANCE optimizations interacted badly with
2281 non-keyword :DEFAULT-INITARGS in the presence of :BEFORE/:AFTER
2282 methods on SHARED-INITIALIZE. (thanks to Matt Marjanovic)
2283 * bug fix: the CTOR optimization for MAKE-INSTANCE should no longer
2284 create obsolete instances in the case of redefinition or
2285 obsoletion of a superclass. (thanks to Andy Hefner)
2286 * bug fix: Support for the Alpha architecture has been revived; it had
2287 suffered somewhat from lack of maintenance since sbcl-1.0.
2288 * improvements to the Windows port:
2289 ** The system detects the codepage to use at startup, instead of
2290 using the value from the saved core. (thanks to Kei Suzuki)
2292 changes in sbcl-1.0.14 relative to sbcl-1.0.13:
2293 * new feature: SB-EXT:*EXIT-HOOKS* are called when the process exits
2294 (see documentation for details.)
2295 * revived support for OpenBSD (contributed by Josh Elsasser)
2296 * partially fixed bug #108: ROOM no longer suffers from occasional
2297 (AVER (SAP= CURRENT END)) failures.
2298 * fixed bug #402: proclaimed non-standard declarations in DEFMETHOD
2299 bodies no longer cause a WARNING to be signalled. (reported by
2301 * bug fix: (TRUNCATE X 0) when X is a bignum now correctly signals
2302 DIVISION-BY-ZERO. Similarly for MOD and REM (which suffered due to
2303 the bug in TRUNCATE.) (reported by Michael Weber)
2304 * bug fix: SB-SPROF:REPORT no longer signals an error if there are
2305 no samples. (reported by Andy Hefner)
2306 * bug fix: functions compiled using (COMPILE NIL '(LAMBDA ...))
2307 no longer appear as (NIL ...) frames in backtraces.
2308 * bug fix: RESOLVE-CONFLICT (and the other name conflict machinery)
2309 is now actually exported from SB-EXT as documented. (reported by
2311 * bug fix: sb-aclrepl now correctly understands how to inspect
2312 single-floats on 64-bit platforms where single-floats are not boxed.
2313 * bug fix: SB-MOP:CLASS-SLOTS now signals an error if the class has not
2314 yet been finalized. (reported by Levente Meszaros)
2315 * bug fix: CLOSE :ABORT T behaves more correctly on Windows.
2316 * DESCRIBE and (DOCUMENTATION ... 'OPTIMIZE) describe meaning of
2317 SBCL-specific optimize qualities.
2319 changes in sbcl-1.0.13 relative to sbcl-1.0.12:
2320 * minor incompatible change: RUN-PROGRAM now uses execvp(3) to find
2321 an executable in the search path, and does so in the child
2322 process's PATH. The function FIND-EXECUTABLE-IN-SEARCH-PATH has
2323 been removed; it can be found in the CVS history, for somebody who
2324 needs that search behavior (see the manual).
2325 * minor incompatible change: compiler policy re. weakening type
2326 checks has changed: now type checks are weakened only if SAFETY < 2
2328 * SB-EXT:NATIVE-NAMESTRING takes a new keyword AS-FILE, forcing
2329 unparsing of directory pathnames as files. Analogously,
2330 SB-EXT:PARSE-NATIVE-NAMESTRING takes an AS-DIRECTORY, forcing a
2331 filename to parse into a directory pathname.
2332 * enhancement: implicit generic function creation now signals a
2333 specific style-warning IMPLICIT-GENERIC-FUNCTION-WARNING, which
2334 users can bind handlers for and muffle around calls to LOAD.
2335 * enhancement: RUN-PROGRAM allows unicode arguments and environments
2336 to be used (using the default stream external format), and allows
2337 non-simple strings to be used. (thanks to Harald Hanche-Olsen)
2338 * optimization: COPY-SEQ, FILL, and SUBSEQ are 30-80% faster for
2339 strings and vectors whose element-type or simplicity is not fully
2340 known at compile-time.
2341 * optimization: STRING-TRIM and related functions no longer allocate
2342 a new string when no trimming needs to be performed. These functions
2343 are also faster than before when the input string has been declared
2345 * optimization: READ-SEQUENCE on simple-strings is up to 80% faster.
2346 * optimization: READ-LINE is significantly faster for files containing
2348 * optimization: non-open coded uses of character comparison operators
2349 (e.g. char=) no longer cons when called with more than one parameter
2350 on platforms supporting dynamic-extent allocation.
2351 * bug fix: READ-SEQUENCE on composite stream wrapping a Gray stream
2352 with STREAM-ELEMENT-TYPE (UNSIGNED-BYTE 8) signalled an error.
2353 * bug fix: COPY-SEQ on lists did not signal a type-error on improper
2355 * bug fix: some sequence functions elided bounds checking when
2357 * bug fix: too liberal weakening of union-type checks when SPEED >
2359 * bug fix: more bogus fixnum declarations in ROOM implementation
2362 changes in sbcl-1.0.12 relative to sbcl-1.0.11:
2363 * new feature: MAKE-HASH-TABLE now experimentally accepts a
2364 :SYNCHRONIZED argument, which makes the hash-table safe for
2365 concurrent accesses (but not iteration.) See also:
2366 SB-EXT:WITH-LOCKED-HASH-TABLE, and
2367 SB-EXT:HASH-TABLE-SYNCHRONIZED-P.
2368 * optimization: CONCATENATE on strings is an order of magnitude faster
2369 in code compiled with (> SPEED SPACE).
2370 * optimization: SUBSEQ is ~50% faster on lists.
2371 * bug fix: bug 417 fixed -- source location reporting is now more robust.
2372 * bug fix: SUBSEQ on a list will now correctly signal an error if if
2373 END is smaller then START.
2374 * bug fix: SB-PROFILE will no longer report extra consing for nested
2375 calls to profiled functions.
2376 * bug fix: ROOM implementation had bogus fixnum declarations which
2377 could cause type-errors when calling ROOM on large images.
2378 * bug fix: if file compilation is aborted, the partial fasl is now
2379 deleted, and COMPILE-FILE returns NIL as the primary value.
2380 * bug fix: number of thread safety issues relating to SBCL's internal
2381 hash-table usage have been fixed.
2382 * bug fix: SB-SYS:WITH-PINNED-OBJECTS could cause garbage values to
2383 be returned from its body when the values were being returned
2384 using unknown-values return convection and the W-P-O was wrapped
2385 inside an UNWIND-PROTECT.
2386 * bug fix: sb-posix should now compile again under Windows, enabling
2387 slime to work again.
2389 changes in sbcl-1.0.11 relative to sbcl-1.0.10:
2390 * incompatible change: hash-table accessor functions are no longer
2391 automatically protected by locks. Concurrent accesses on the same hash-table
2392 from multiple threads can give inconsistent results or even corrupt the
2393 hash-table completely. Multi-threaded applications should do their own
2394 locking at the correct granularity. In the current implementation it is
2395 still safe to have multiple readers access the same table, but it's not
2396 guaranteed that this property will be maintained in future releases.
2397 * minor incompatible change: (SETF MUTEX-VALUE) is not longer supported,
2398 and will signal an error at runtime.
2399 * enhancement: SB-THREAD package now exports a semaphore interface.
2400 * enhancement: CONS can now stack-allocate on x86 and
2401 x86-64. (Earlier LIST and LIST* supported stack-allocation, but
2403 * enhancement: nested lists can now be stack allocated on
2404 platforms providing stack allocation support.
2405 * enhancement: dynamic-extent support has been extended to support
2406 cases where there are multiple possible sources for the stack
2408 * optimization: RELEASE-MUTEX no longer needs to perform a syscall
2409 if the mutex is uncontested on Linux.
2410 * bug fix: symbol-macro expansion now uses the *MACROEXPAND-HOOK*
2411 as specified by the CLHS. (thanks to Tobias Rittweiler)
2412 * bug fix: NaN comparison now works on x86-64.
2413 * bug fix: CLOSE :ABORT T on a stream with pending output now
2415 * bug fix: instances of non-standard metaclasses using standard
2416 instance structure protocol sometimes missed the slot type checks
2418 * bug fix: known functions can be inlined in high-debug code.
2420 changes in sbcl-1.0.10 relative to sbcl-1.0.9:
2421 * minor incompatible change: the MSI installer on Windows no longer
2422 associates .lisp and .fasl files with the installed SBCL.
2423 * minor incompatible change: :UNIX is no longer present in *FEATURES*
2424 on Windows. (thanks to Luis Oliviera)
2425 * new feature: SB-CLTL2 contrib module now implements
2426 FUNCTION-INFORMATION. (thanks to Larry D'Anna)
2427 * optimization: scavenging weak pointers is now more efficient,
2428 requiring O(1) instead of O(N) per weak pointer to identify
2429 scanvenged vs. unscavenged pointers. (thanks to Paul Khuong)
2430 * optimization: typechecking (SETF SLOT-VALUE) is now ~5x faster in
2431 method bodies using constant slot-names when the first argument is
2432 a specializer parameter for the method.
2433 * optimization: SLOT-VALUE &co are now ~50% faster for variable slot
2434 names, when the class of the instance is a direct instance
2435 STANDARD-CLASS or FUNCALLABLE-STANDARD-CLASS (making them only 3x
2436 as slow as the constant slot-name case.)
2437 * optimization: member type construction is now O(N) instead
2439 * optimization: UNION and NUNION are now O(N+M) for large
2440 inputs as long as the :TEST function is one of EQ, EQL, EQUAL, or
2442 * enhancement: DEFINE-MODIFY-MACRO lambda-list information is
2443 now more readable in environments like Slime which display it.
2444 (thanks to Tobias C. Rittweiler)
2445 * bug fix: SB-EXT:COMPARE-AND-SWAP was non-atomic unless the compiler
2446 was able to infer the correct argument type for the object on which
2447 the CAS operation was being performed.
2448 * bug fix: copy propagation interfered with parallel assignment
2449 semantics in local calls. (reported by Paul Khuong)
2450 * bug fix: the signed modular fixnum shift compiled to wrong code on
2451 x86 and x86-64. (spotted by a slight modification to some of
2454 changes in sbcl-1.0.9 relative to sbcl-1.0.8:
2455 * minor incompatible change: SB-SYS:OUTPUT-RAW-BYTES is deprecated.
2456 * enhancement: SB-EXT:FINALIZE accepts a :DONT-SAVE keyword argument,
2457 indicating the finalizer should be cancelled when SAVE-LISP-AND-DIE
2459 * enhancement: default PRINT-OBJECT methods for classes, slot-definitions,
2460 and generic function now print the object identity for anonymous
2461 instances. (thanks to Attila Lendvai)
2462 * enhancement: as an extension to MOP, SBCL now supports SETF of
2463 STANDARD-INSTANCE-ACCESS and FUNCALLABLE-STANDARD-INSTANCE-ACCESS.
2464 (thanks to Attila Lendvai)
2465 * enhancement: sb-cover has an alternate annotation mode which puts
2466 the form annotations at the car of the form, instead of annotating
2467 it completely. The benefit of this mode is that it shows better
2468 which forms were instrumented by the compiler.
2469 * bug fix: new compiler transforms for MEMBER and ASSOC were affected
2470 by printer control variables. (reported by Dan Corkill)
2471 * bug fix: system leaked memory when delayed output was performed by
2472 the OS in smaller chunks then expected. (thanks to David Smith)
2473 * bug fix: system leaked memory when file streams were not closed
2475 * bug fix: large objects written to slow streams that were modified
2476 after the write could end up with the modified state written to
2477 the underlying file descriptor.
2478 * bug fix: multiple threads operating in parallel on the same stream
2479 could cause buffer-overflows.
2480 * bug fix: source location information is stored correctly
2481 (broken since 1.0.6). This bug would generally show up as the
2482 Slime debugger highlighting the wrong form when the sldb-show-source
2484 * bug fix: Branch forms are again annotated as branches in the sb-cover
2486 * bug fix: GCD on MOST-NEGATIVE-FIXNUM no longer causes an infinite loop
2487 on x86-64. (reported by Gregory Vanuxem)
2488 * bug fix: EQUALP could return wrong results for structures with raw
2489 slots (slots with a :TYPE of SINGLE-FLOAT, DOUBLE-FLOAT, or a machine
2490 word). (reported by Vjacheslav Fyodorov)
2491 * bug fix: sb-sprof sampling didn't work on non-x86oid platforms. (patch
2494 changes in sbcl-1.0.8 relative to sbcl-1.0.7:
2495 * enhancement: experimental macro SB-EXT:COMPARE-AND-SWAP provides
2496 atomic compare-and-swap operations on threaded platforms.
2497 * enhancement: experimental function SB-EXT:RESTRICT-COMPILER-POLICY
2498 allows assigning a global minimum value to optimization qualities
2499 (overriding proclamations and declarations).
2500 * enhancement: closed over variables can be stack-allocated on x86
2502 * performance bug fix: GETHASH and (SETF GETHASH) are once again
2504 * optimization: slot definition lookup is now O(1). This speeds up
2505 eg. SLOT-VALUE and (SETF SLOT-VALUE) with variable slot names.
2506 * optimization: STRING-TO-OCTETS is now up to 60% faster for UTF-8.
2507 * optimization: ASSOC and MEMBER can now be open-coded for all
2508 combinations of keyword arguments when second argument is constant
2509 and SPEED >= SPACE. In other cases a specialized version is
2511 * bug fix: using obsoleted structure instances with TYPEP and
2512 generic functions now signals a sensible error.
2513 * bug fix: threads waiting on GET-FOREGROUND can be interrupted.
2514 (reported by Kristoffer Kvello)
2515 * bug fix: backtrace construction is now more careful when making
2516 lisp-objects from pointers on the stack, to avoid creating bogus
2517 objects that can be seen by the GC.
2518 * bug fix: defaulting of values in contexts expecting more than 7
2519 variables now works on x86-64. (reported by Christopher Laux)
2520 * bug fix: modifications to packages (INTERN, EXPORT, etc) are now
2522 * bug fix: (SETF SYMBOL-PLIST) no longer allows assigning a non-list
2523 as the property-list of a symbol.
2524 * bug fix: DEFMETHOD forms with CALL-NEXT-METHOD in the method body,
2525 in EVAL-WHEN forms with both :COMPILE-TOPLEVEL and :LOAD-TOPLEVEL
2526 situations requested, are once again file-compileable. (reported
2529 changes in sbcl-1.0.7 relative to sbcl-1.0.6:
2530 * MOP improvement: support for user-defined subclasses of
2531 SB-MOP:SPECIALIZER has been enhanced. The experimental interface
2532 function SB-PCL:MAKE-METHOD-SPECIALIZERS-FORM, called as part of
2533 the expansion of DEFMETHOD, is responsible for generating a form
2534 which creates a list of specializers when evaluated. Additional
2535 functions SB-PCL:[UN]PARSE-SPECIALIZER-USING-CLASS provide
2536 debugging and introspective support.
2537 * minor incompatible change: the (unsupported) spinlock interface
2538 has changed: free spinlock now has the value NIL, and a held spinlock
2539 has the owning thread as its value.
2540 * enhancement: WITHOUT-INTERRUPTS now binds ALLOW-WITH-INTERRUPTS and
2541 WITH-LOCAL-INTERRUPTS as local macros. Refer to documentation string
2543 * enhancement: name of a socket-stream is now "a socket" instead of
2544 "a constant string".
2545 * enhancement: SB-POSIX now supports lockf(). (Thanks to Zach Beane.)
2546 * enhancement: SB-POSIX now supports getcwd(). (Thanks to Tassilo Horn.)
2547 * enhancement: SB-INTROSPECT:FUNCTION-ARGLIST shows nicer argument lists
2548 for generic functions. (Thanks to Tobias C. Rittweiler)
2549 * optimization: bignum printing speed has been improved by 20-40%
2550 (depending on the bignum size.)
2551 * bug fix: WITH-MUTEX and WITH-RECURSIVE-LOCK are now interrupt safe
2553 * bug fix: the cache used by the CLOS to store precomputed effective
2554 methods, slot offsets, and constant return values is now thread and
2556 * bug fix: generic function dispatch function updating is now thread
2557 and interrupt safe (in the sense that the known issues have been
2559 * bug fix: ADD/REMOVE-METHOD is now thread and interrupt safe.
2560 * bug fix: interning EQL-specializers is now thread and interrupt safe.
2561 * bug fix: asdf systems with dependencies to the SB-POSIX or
2562 SB-BSD-SOCKETS contribs can be loaded with :FORCE T.
2563 * bug fix: interrupt safety of applicable method computation has been
2566 changes in sbcl-1.0.6 relative to sbcl-1.0.5:
2567 * new contrib: sb-cover, an experimental code coverage tool, is included
2568 as a contrib module.
2569 * optimization: STRING-TO-OCTETS for unibyte encodings and UTF-8 is
2570 significantly faster.
2571 * optimization: calls of the form (AREF FOO (+ INDEX <constant>)) now
2572 produce more efficient code on x86-64 if the compiler can determine
2573 that (+ INDEX <constant>) does not require a bounds check and FOO
2574 has an element type at least 8 bits wide.
2575 * enhancement: a new, experimental synchronous timeout facility is
2576 provided. Refer to SB-SYS:WITH-DEADLINE for details.
2577 * enhancement: when a symbol name conflict error arises, the
2578 conflicting symbols are always printed with a package prefix.
2579 (thanks to Kevin Reid)
2580 * enhancement: stepping is now once again supported on the SPARC and
2581 MIPS platforms. (It is also now more likely to work on CheneyGC
2583 * enhancement: sb-sprof can now also track and report accurate call
2585 * bug fixes: the treatment of non-standard subclasses of
2586 SB-MOP:SPECIALIZER is more correct.
2587 * incompatible change: PURIFY no longer copies the data from the
2588 dynamic space into the static and read-only spaces on platforms
2589 that use the generational garbage collector
2590 * bug fix: GETHASH, (SETF GETHASH), CLRHASH and REMHASH are now
2592 * bug fix: GC race condition occasionally resulting in crashes with
2593 the error message "SIG_STOP_FOR_GC blocked at a bad place" has been
2595 * bug fix: &ENVIRONMENT variables in macro lambda lists can now be
2597 * bug fix: DEFSETF lambda lists without &ENVIRONMENT no longer cause
2598 a STYLE-WARNING to be signalled (regression from 1.0.4.)
2599 * bug fix: an asynchronous interrupt could previously leave the
2600 system running with GC inhibited.
2601 * bug fix: a DECLARE form evaluated at top-level now causes an error
2602 rather than silently (or verbosely) returning NIL.
2603 * bug fix: trying to dissassemble functions compiled at high DEBUG could
2604 result in a error being signalled due to source form lookup errors.
2605 (reported by Peter Graves)
2607 changes in sbcl-1.0.5 relative to sbcl-1.0.4:
2608 * incompatible change: removed writer methods for host-ent-name,
2609 host-ent-addresses -- changing the values did not update the DNS
2611 * minor incompatible change: changed experimental JOIN-THREAD interface
2612 * documentation: the manual now lists reader and writer methods
2613 in class slot documentation sections. (thanks to Richard M Kreuter)
2614 * documentation: unwinding from asyncronous events has been
2615 documented as unsafe.
2616 * documentation: SB-SYS:WITHOUT-GCING has been documented as unsafe
2617 in multithreaded application code.
2618 * optimization: GET-INTERNAL-REAL-TIME has been optimized on POSIX
2619 platforms. (thanks to James Anderson for the optimization hint)
2620 * optimization: REPLACE, SUBSEQ, and COPY-SEQ are now optimized in
2622 * optimization: STRING-{EQUAL,LESSP,GREATER-P} and their NOT-
2623 variants no longer cons.
2624 * optimization: Direct calls to CHAR-{EQUAL,LESSP,GREATERP} and
2625 their NOT- variants no longer cons.
2626 * optimization: EQUAL hash tables no longer use SXHASH for objects
2627 of all data types, but instead use an EQL hash for types for which
2628 EQUAL is the same as EQL.
2629 * optimization: the non-inlined generic versions of AREF and (SETF AREF)
2630 are significantly faster.
2631 * optimization: new STRING-OUTPUT-STREAM implementation is much
2632 faster for large outputs and conses 30% less on average.
2633 * enhancement: XREF information is now collected for references made
2634 to global variables using SYMBOL-VALUE and a constant argument.
2635 * enhancement: SIGINT now causes a specific condition
2636 SB-SYS:INTERACTIVE-INTERRUPT to be signalled.
2637 * bug fix: FILE-POSITION used to signal an error in some cases where
2638 ANSI requires it to return NIL.
2639 * bug fix: ADJUST-ARRAY is now interrupt-safe.
2640 * bug fix: adding and removing fd-handlers is now interrupt-safe.
2641 * bug fix: inlined calls to C now ensure 16byte stack alignment on
2643 * bug fix: bad type declaration in the CLOS implementation has
2644 been fixed. (reported by James Anderson)
2645 * bug fix: incorrect ROOM reporting on x86-64 has been fixed.
2646 (thanks to Lutz Euler)
2647 * bug fix: DEFSETF now allows &ENVIRONMENT and disallows &AUX as
2648 required by the CLHS. (reported by Samium Gromoff)
2649 * bug fix: dead unbound variable references now signal an error.
2650 (reported by Marco Monteiro)
2651 * bug fix: / with an unused value was being deleted in safe code.
2652 (thanks to Marco Monteiro and Kevin Reid)
2653 * bug fix: number of characters that can be written onto a single
2654 line in a file is unlimited.
2655 * bug fix: some GC deadlocks caused by asynchronous interrupts have
2656 been fixed by inhibiting interrupts for when GC is disabled.
2657 * bug fix: some interrupt safety issues with GETHASH, (SETF
2658 GETHASH), CLRHASH and REMHASH have been fixed.
2659 * bug fix: binding *BREAK-ON-SIGNALS* to a value that is not a type
2660 specifier no longer causes infinite recursion.
2661 * bug fix: SB-EXT:MUFFLE-CONDITIONS declarations no longer trigger a
2662 bogus warning in DEFMETHOD bodies. (reported by Kevin Reid)
2663 * bug fix: an &environment argument with the correct variable information
2664 is passed to macros that are expanded during byte compilation.
2665 (reported by Samium Gromoff)
2666 * bug fix: a logic error was causing the hash function for bignums to
2667 have excessive amounts of collisions. (reported by Faré Rideau)
2668 * bug fix: modifying the contents of an array could change the return
2669 value of SXHASH on that array, which is only allowed for strings
2670 and bit vectors. (bug introduced in 0.9.16)
2671 * improvement: the x86-64/darwin port now passes all tests (except
2672 for the debugger tests) but should still be considered
2673 experimental until this is fixed.
2674 * improvement: a style-warning is signaled for CASE (etc) clauses with
2675 duplicate keys. (thanks to Kevin Reid)
2676 * improvement: macos/x86 and macos/x86-64 now use mach exception
2677 handlers for dealing with illegal instructions (for trapping and
2678 error handling) and memory protection violations (for GC).
2680 changes in sbcl-1.0.4 relative to sbcl-1.0.3:
2681 * new platform: experimental support for x86-64/darwin (MacOS).
2682 * incompatible change: the thread-safe (on most platforms) getaddrinfo
2683 and getnameinfo sockets functions are used instead of gethostbyaddr
2684 and gethostbyname, on platforms where the newer functions are available.
2685 As a result, the ALIASES field of HOST-ENT will always be NIL on these
2687 * change: runtimes with embedded cores (i.e. saved with :EXECUTABLE T)
2688 don't print the startup banner, but behave as if --noinform was passed
2689 as a command line argument. (thanks to Kevin Reid)
2690 * new experimental feature: added JOIN-THREAD (by NIIMI Satoshi)
2691 * optimization: code using alien values with undeclared types is much faster.
2692 * optimization: the compiler is now able to open code SEARCH in more cases.
2693 * optimization: more compact typechecks on x86-64 (thanks to Lutz Euler)
2694 * bug fix: using standardized COMMON-LISP special variables as loop
2695 variables no longer signals bogus package lock violations. (reported
2697 * bug fix: declaring local loop variables to be of a range-limited type
2698 such as (SINGLE-FLOAT 1.0 2.0) no longer causes a compile-time error.
2699 (reported by Andras Simon)
2700 * bug fix: >= and <= gave wrong results when used with NaNs. (Some NaN
2701 bugs remain on x86-64.)
2702 * bug fix: the #= and ## reader macros now interact reasonably with
2703 funcallable instances.
2704 * bug fix: type-checks for function arguments were compiled using the
2705 compiler policy settings of the wrong lexical environment (in 1.0.2
2707 * bug fix: SHADOW accepts characters as string designators, as required
2708 by the spec (thanks to Eric Marsden)
2709 * bug fix: fixed GC safety issues when foreign functions are called with
2710 non-base strings as arguments
2711 * bug fix: more consistent error output for fatal-compiler-warnings, like
2713 * bug fix: functions with proper names were showing up as NIL in
2714 backtraces (reported by Edi Weitz, regression in 1.0.2)
2716 changes in sbcl-1.0.3 relative to sbcl-1.0.2:
2717 * new platform: NetBSD/PPC. (thanks to Aymeric Vincent)
2718 * optimization: calls of the form (AREF FOO (+ INDEX <constant>)) now
2719 produce more efficient code on the x86 if the compiler can determine
2720 that (+ INDEX <constant>) does not require a bounds check and FOO
2721 has an element type at least 8 bits wide.
2722 * bug fix: references to undefined variables are handled the same way
2723 in toplevel forms as in the normal compiler
2724 * bug fix: the build scripts again work with non-bash /bin/sh (thanks
2726 * bug fix: use "gtar" as the asdf-install *TAR-PROGRAM* on NetBSD
2727 (thanks to Jon Buller)
2728 * improvement: faster compilation times for complex functions
2729 * improvement: added readlink support to SB-POSIX (thanks to Richard
2732 changes in sbcl-1.0.2 relative to sbcl-1.0.1:
2733 * improvement: experimental support for mach exception handling on
2734 x86/macos. requires building with :MACH-EXCEPTION-HANDLER feature
2736 * improvement: support for GBK external format.
2737 (thanks to Chun Tian (binghe))
2738 * improvement: the debugger now displays variables that have been closed
2739 over, in code compiled with (DEBUG 2) or higher
2740 * improvement: support for executable cores on NetBSD (thanks to
2742 * new feature: added a RESTART-FRAME debugger command
2743 * new feature: new generic function SB-GRAY:STREAM-FILE-POSITION can
2744 be used to provide an implementation for FILE-POSITION on Gray streams
2745 (thanks to Eric Marsden)
2746 * new feature: add syslog, openlog and closelog support to SB-POSIX
2747 (thanks to Richard Kreuter)
2748 * optimization: the function call overhead in code compiled with
2749 a high DEBUG optimization setting is significantly
2750 * bug fix: an error is signaled for attempts to use READ-SEQUENCE
2751 for a (SIGNED-BYTE 8) stream and (UNSIGNED-BYTE 8) vector, or vice versa.
2752 (thanks to Tony Martinez)
2753 * bug fix: the initforms for DEFMETHOD &AUX parameters are only
2754 evaluated once (reported by Kevin Reid)
2755 * bug fix: the :SHOW-PROGRESS keyword parameter to SB-SPROF:WITH-PROFILING
2756 works again (thanks to Kilian Sprotte)
2757 * bug fix: an error is signaled for tagbodies with duplicate tags
2758 (thanks to Stephen Wilson)
2759 * bug fix: NIL can be used as a tagbody tag (thanks to Stephen Wilson)
2760 * bug fix: Win32 port can now handle foreign code unwinding Lisp
2761 stack frames from alien callbacks.
2762 * bug fix: ATANH returned incorrect results on win32 (thanks to Pierre Mai)
2763 * bug fix: SBCL works on Linux/ppc systems with a kernel configured to use
2764 65k pages (thanks to David Woodhouse)
2765 * bug fix: fix SB-POSIX dirent and socket on NetBSD (thanks to Richard Kreuter)
2767 changes in sbcl-1.0.1 relative to sbcl-1.0:
2768 * new platform: FreeBSD/x86-64, including support for threading.
2769 * new feature: the compiler stores cross-referencing information
2770 about function calls (who-calls), macroexpansion (who-macroexpands)
2771 and special variables (who-binds, who-sets, who-references) for code
2772 compiled with (< SPACE 3). This information is available through the
2773 sb-introspect contrib.
2774 * new feature: users may subclass SEQUENCE, and have instances of
2775 these classes interoperate with standard Common Lisp functions if
2776 a number of methods are defined. (This feature is experimental
2777 and the interface subject to change based on feedback from SBCL
2778 users and the general community)
2779 * improvement: sb-sprof traces call stacks to an arbitrary depth on
2780 x86/x86-64, rather than the previous fixed depth of 8
2781 * improvement: another pthread back-end of mutex "pthread-futex".
2782 * bug fix: non-ascii command-line arguments are processed correctly
2783 (thanks to Yaroslav Kavenchuk)
2784 * bug fix: non-required arguments were not passed correctly when a method
2785 defined using DEFMETHOD was called from a mop-generated method using
2786 CALL-NEXT-METHOD (reported by Pascal Costanza)
2787 * bug fix: recursion is now permitted in accessors through
2788 SLOT-UNBOUND. (reported by Pascal Costanza)
2789 * bug fix: an error was signaled at startup if the HOME environment
2790 variable was defined, but had an empty value (reported by Peter Van Eynde)
2791 * bug fix: non ordinary lambda-list keyword in ordinary lambda lists
2792 signal a PROGRAM-ERROR, not a BUG.
2793 * bug fix: SB-POSIX:READDIR works when built with large file support.
2794 * bug fix: ENOUGH-NAMESTRING works relative to #p"/" as well. (thanks
2796 * enhancement: DESTRUCTURING-BIND lambda-list uses &BODY instead of &REST
2797 for better automatic indentation support. (thanks to Matt Pillsbury)
2798 * optimization: loading generic functions no longer takes O(n^2) time,
2799 proportional to the amount of methods in the generic function
2800 (reported by Todd Sabin and Jeremy Brown)
2801 * optimization: the FIND and POSITION family of sequence functions
2802 are significantly faster on arrays whose element types have been
2804 * improvements to the Windows port:
2805 ** Intermittent heap corruption problems have been fixed. (thanks
2806 to Alastair Bridgewater)
2807 ** TRACE :ENCAPSULATE NIL (and function end breakpoints)
2809 ** Lisp is able to unwind foreign exception frames from alien
2810 callbacks. (thanks to Alastair Bridgewater)
2812 changes in sbcl-1.0 relative to sbcl-0.9.18:
2813 * improvement: experimental support for threading on FreeBSD/x86.
2814 (thanks to NIIMI Satoshi)
2815 * improvement: runtime option --dynamic-space-size can be used
2816 to set the size of the dynamic space reserved on startup.
2817 * improvement: floating point modes in effect are now saved in
2818 core, and restored on startup.
2819 * improvement: GET-INTERNAL-REAL-TIME now reports the time since
2820 startup, not time since first call to GET-INTERNAL-REAL-TIME.
2821 * improvement: SAVE-LISP-AND-DIE explicitly checks that multiple
2822 threads are not running after *SAVE-HOOKS* have run.
2823 * improvement: writes to CLOS instance slots are type-checked in code
2824 compiled with (SAFETY 3)
2825 * improvement: floating-point exception handling on FreeBSD (thanks to
2827 * improvement: SB-POSIX supports time(2), utime(2) and utimes(2)
2828 (thanks to Zach Beane)
2829 * improvement: support for files larger than 2GB for CL streams and SB-POSIX
2831 * improvement: added support for the Shift-JIS external format.
2832 (contributed by NIIMI Satoshi)
2833 * improvement: callbacks are supported on Linux/PPC. (thanks to
2835 * bug fix: compiler bug triggered by a (non-standard) VALUES
2836 declaration in a LET* was fixed. (reported by Kaersten Poeck)
2837 * bug fix: file compiler no longer confuses validated and already
2838 dumped structurres. (reported by Kaersten Poeck)
2839 * bug fix: ADJUST-ARRAY :FILL-POINTER T on an array without a
2840 fill-pointer signals a type-error as required. (thanks to
2842 * bug fix: disassemly of funcallable instances works.
2843 * bug fix: single stepping on PPC.
2844 * bug fix: fix thread-safety problems in the type system (generally
2845 manifesting as nonsensical errors like "STRING is a bad type specifier
2846 for sequences" or "The value 1 is not of type FIXNUM")
2847 * bug fix: version components are handled correctly in TRANSLATE-PATHNAME
2848 (reported by Josip Gracin)
2849 * bug fix: an error is signaled for attempts to displace arrays with
2850 incompatible element types (thanks to Mario Mommer)
2851 * bug fix: more correct handling of wide characters in debug info
2852 (bug reported by Attila Lendvai and fixed by Juho Snellman)
2853 * optimization: method calls with &OPTIONAL or &KEY arguments are faster
2854 and don't cause extra consing
2855 * optimization: MAP and MAP-INTO are significantly faster on vectors
2856 whose elements types have been declared.
2857 * Improvements to SB-SPROF:
2858 ** Support for allocation profiling
2859 ** Reduced profiling overhead, especially for long profiling runs
2860 * Improvements to the Windows port:
2861 ** floating point exceptions are now reported correctly.
2862 ** stack exhaustion detection works partially.
2863 ** more accurate GET-INTERNAL-REAL-TIME.
2864 ** better RUN-PROGRAM behaviour in case of errors in the child
2866 ** PROBE-FILE now simplifies pathnames correctly.
2867 ** DIRECTORY now works correctly with :WILD-INFERIORS.
2868 ** DECODE-UNIVERSAL-TIME works on times before 00:00:00 January
2869 1st 1970 (although time timezone data will be unreliable).
2870 ** Hyperbolic functions TANH, ASINH, ACOSH, and ATANH work.
2872 changes in sbcl-0.9.18 (1.0.beta?) relative to sbcl-0.9.17:
2873 * enhancement: SB-POSIX now supports cfsetispeed(3), cfsetospeed(3),
2874 cfgetispeed(3), cfgetospeed(3), and related constants. (thanks to
2876 * bug fix: two potential GC deadlocks affecting threaded builds.
2877 * bug fix: (TYPEP #\A '(NOT (MEMBER #\" #\{ #\:))) now correctly
2878 returns T (reported by Anton Kazennikov)
2879 * bug fix: the STORE-VALUE restart of CHECK-TYPE works correctly
2880 with non-variable places
2881 * bug fix: remove a race condition in the setting of
2882 funcallable-instance functions, this should make threaded CLOS
2883 code more stable against memory faults.
2884 * bug fix: corruption of specials when unbinding is interrupted by an
2885 asynchronous unwind (reported by Hannu Koivisto)
2886 * improvement: the debugger will now also display local variables that
2887 are only used once, for code compiled with a DEBUG optimization quality
2890 changes in sbcl-0.9.17 (0.9.99?) relative to sbcl-0.9.16:
2891 * feature: weak hash tables, see MAKE-HASH-TABLE documentation
2892 * incompatible change: External-format support for FFI calls. The
2893 SB-ALIEN:C-STRING no longer implies an ASCII
2894 external-format. Instead the string is subject to external-format
2895 conversion. Additionally return values of type SB-ALIEN:C-STRING
2896 are by default of type (SIMPLE-ARRAY CHARACTER), not
2897 SIMPLE-BASE-STRING. For an alien type that behaves like the old
2898 SB-ALIEN:C-STRING type, use (SB-ALIEN:C-STRING :EXTERNAL-FORMAT
2899 :ASCII :ELEMENT-TYPE BASE-CHAR). (thanks to Yaroslav Kavenchuk)
2900 * incompatible change: SB-EXT package no longer contains the
2901 following unused symbols: *GC-NOTIFY-AFTER*, *GC-NOTIFY-BEFORE*,
2902 *GC-NOTIFY-STREAM*, *ERROR-PRINT-LENGTH*, *ERROR-PRINT-LEVEL*,
2904 * incompatible change: the single-stepper is no longer available
2905 on Alpha, Mips and Sparc platforms.
2906 * minor incompatible change: the direct superclasses of
2907 SB-MOP:FUNCALLABLE-STANDARD-OBJECT are (FUNCTION STANDARD-OBJECT),
2908 not (STANDARD-OBJECT FUNCTION). This makes the
2909 class-precedence-lists of GENERIC-FUNCTION and
2910 STANDARD-GENERIC-FUNCTION comply with the requirement of ANSI
2912 * minor incompatible change: the default stream external format on
2913 non-unicode SBCL is no longer detected from the locale, but is always
2915 * new feature: Add a version of evaluator that uses an interpreter instead
2916 of the compiler. EVAL still uses the compiler by default, to switch it
2917 to use the interpreter, set the value of the variable
2918 SB-EXT:*EVALUATOR-MODE* to :INTERPRET.
2919 * minor incompatible change: the single-stepper REPL has been merged
2920 with the normal debugger (see the "Stepping" heading of the debugger help
2921 for more details). The debugger command STEP will no longer switch
2922 to the single-stepper REPL.
2923 * bug fix: ENOUGH-NAMESTRING on pathnames with no name and a pattern
2924 for a type now works.
2925 * bug fix: loading of default sysinit file works. (thanks to Leonid
2927 * bug fix: better detection of circularities in the file-compiler.
2928 (reported by Marco Monteiro)
2929 * bug fix: the CL pathname functions now work with files that have
2930 non-ASCII characters in their names (thanks to Yaroslav Kavenchuk)
2931 * bug fix: The :PTY argument for RUN-PROGRAM will now work on
2932 systems with Unix98 pty semantics.
2933 * bug fix: ASDF-INSTALL will now work with bsd tar.
2934 * bug fix: ASDF-INSTALL uses GNU tar on Solaris (thanks to Josip
2936 * bug fix: timers expiring in dead threads no longer cause a
2937 type-error (reported by Paul "Nonny Mouse").
2938 * bug fix: thanks to more lightweight single-stepper instrumentation,
2939 code compiled with (DEBUG 3) will compile and execute significantly faster,
2940 and will have more accurate type-inferencing than before
2941 * bug fix: SLOT-VALUE optimizations are no longer done on method parameters
2942 whose bindings are modified
2943 * improvements to the win32 port (thanks to Yaroslav Kavenchuk):
2944 ** bug fix: arguments to RUN-PROGRAM are escaped correctly
2945 ** replace dummy implementations of CL:MACHINE-INSTANCE and
2946 CL:SOFTWARE-VERSION with proper version
2948 changes in sbcl-0.9.16 relative to sbcl-0.9.15:
2949 * feature: implemented the READER-METHOD-CLASS and
2950 WRITER-METHOD-CLASS portion of the Class Initialization Protocol
2951 as specified by AMOP.
2952 * incompatible change: variable SB-EXT:*USE-IMPLEMENTATION-TYPES*
2954 * optimization: faster LOGCOUNT implementation on x86 and x86-64
2955 (thanks to Lutz Euler)
2956 * optimization: hashing of general arrays and vectors has been
2957 improved. (reported by Any Fingerhut)
2958 * enhancement: SB-INTROSPECT is now able to find definitions of
2959 profiled functions. (thanks to Troels Henriksen)
2960 * enhancement: compiler-macro expansion applies now to FUNCALL forms
2961 as well, allowing compiler-macros for SETF-functions to expand.
2962 * enhancement: step-instrumentation no longer wraps known
2963 single-value functions with multiple-value context, allowing
2964 better type inference.
2965 * fixed bug #337: use of MAKE-METHOD in method combination now works
2966 even in the presence of user-defined method classes. (reported by
2967 Bruno Haible and Pascal Costanza)
2968 * fixed bug #339(c): if there are applicable methods not part of any
2969 long-form method-combination group, call INVALID-METHOD-ERROR.
2970 (reported by Bruno Haible)
2971 * fixed bug #361: the :FUNCTION initarg in the protocol for
2972 initialization of methods can now be used to override
2973 internally-produced optimized functions. (reported by Bruno
2975 * bug fix: extensions of MAKE-METHOD-LAMBDA which wrap the
2976 system-provided lambda expression no longer cause warnings about
2977 unbound #:|pv-table| symbols.
2978 * bug fix: improved the handling of type declarations and the
2979 detection of violations for keyword arguments with non-constant
2981 * bug fix: potentially erronous calls to PATHNAME and
2982 MERGE-PATHNAMES were being flushed in some cases.
2983 (reported by Richard Kreuter)
2984 * bug fix: compiled calls to TYPEP were mishandling obsolete
2985 instances. (reported by James Bielman and Attila Lendvai)
2986 * bug fix: format strings with ~> without matching ~< no longer
2987 trigger an AVER, but signal an understandable error instead.
2988 (reported by Antonio Martinez)
2989 * bug fix: specifying an output-file without a pathname-type for
2990 COMPILE-FILE or COMPILE-FILE-PATHNAME resulted in using the type
2991 of input-file instead of "fasl". (reported by Robert Dodier)
2992 * bug fix: compiler-macro lambda-list parsing of FUNCALL forms.
2993 (reported by James Y Knight).
2994 * bug fix: compiler-macros-function did not consider the environment
2995 argument for shadowing by local functions.
2996 * bug fix: compiler-macros expansion was inhibited by local INLINE
2998 * bug fix: inline expansions of known functions were subject to
2999 step-instrumentation in high debug policies, leading to problems
3000 with type-inference.
3001 * bug fix: compiler failed to differentiate between different CONS
3002 types in some cases.
3003 * bug fix: fixed input, output and error redirection in RUN-PROGRAM
3004 for win32. (thanks to Mike Thomas and Yaroslav Kavenchuk)
3005 * bug fix: #368: incorrect use of expressed vs. upgraded array
3007 * bug fix: #306a: more precise unions of array types.
3008 * thread-safety improvements:
3009 ** CONDITION-WAIT could return early on Linux, if the thread was
3010 interrupted and subsequently continued with SIGCONT.
3011 ** STABLE-SORT and ADJUST-ARRAY were not reentrant.
3013 changes in sbcl-0.9.15 relative to sbcl-0.9.14:
3014 * added support for the ucs-2 external format. (contributed by Ivan
3016 * minor incompatible change: pretty printing of objects of type
3017 (cons symbol) is, in the default pprint-dispatch-table, now
3018 sensitive to whether the symbol satisfies FBOUNDP. (thanks to
3020 * minor incompatible change: SB-MOP:FINALIZE-INHERITANCE is now
3021 called later in a class's lifetime, possibly as late as when the
3022 first instance of the class is created. Previously,
3023 SB-MOP:FINALIZE-INHERITANCE was called by the system as soon as a
3024 class became finalizeable.
3025 * fixed bug: FILE-POSITION sometimes returned inconsistent results
3026 for multibyte external-format streams. (thanks to "vbzoli")
3027 * fixed bug: CHANGE-CLASS would fail to preserve the values of slots
3028 with :ALLOCATION :CLASS inherited from superclasses of the
3030 * fixed bug: anonymous classes can now be created using the :NAME
3031 initarg and MAKE-INSTANCE / REINITIALIZE-INSTANCE, as specified by
3032 AMOP. (reported by Leonid Slobodov on comp.lang.lisp)
3033 * fixed bug: core-files saved with :EXECUTABLE T can again be
3034 executed when SBCL_HOME isn't set. (reported by James Knight)
3035 * fixed bug: toplevel LOCALLY forms with declarations could
3036 occasionally get miscompiled. (reported by Yaroslav Kavenchuk)
3037 * fixed bug: printing from several different threads using different
3038 values of *print-case* could cause invalid output, due to
3039 some internal special variables of the printer not being bound
3040 thread-locally (reported by Max Mikhanosha)
3041 * fixed bug: SPECIALIZER metaobjects (including anonymous classes
3042 and EQL-SPECIALIZERs) can be used as specializers to DEFMETHOD.
3043 (reported by Pascal Costanza)
3044 * fixed bug: FINALIZE-INHERITANCE is called from
3045 REINITIALIZE-INSTANCE on classes when the class has previously
3046 been finalized, as required by AMOP.
3047 * minor code generation optimizations:
3048 ** better register allocation in CLOS dispatching functions
3049 ** overflow detection when coercing signed bytes to fixnums on x86-64
3050 ** is now implemented with one IMUL instruction instead of three shifts
3051 ** more efficient bit-vector access on x86 and x86-64
3052 ** more efficient access to raw structure slots on x86 and x86-64
3053 * fixed some bugs revealed by Paul Dietz' test suite:
3054 ** ENSURE-DIRECTORIES-EXIST.8: ENSURE-DIRECTORIES-EXIST must
3055 return its argument.
3057 changes in sbcl-0.9.14 relative to sbcl-0.9.13:
3058 * feature: thread support on Solaris/x86, and experimental thread support
3060 * feature: SBCL now tries to signal a STORAGE-CONDITION when running out
3062 * feature: SBCL now provides USE-VALUE and STORE-VALUE restarts in the
3063 default method for SLOT-UNBOUND.
3064 * minor incompatible change: prevent the user from specializing the
3065 new-value argument to SB-MOP:SLOT-VALUE-USING-CLASS. It's
3066 somewhat counter to the intent of the protocol, I (CSR) think, and
3067 additionally it just doesn't work in SBCL as currently
3068 implemented, thanks to optimizations (that are always valid for
3069 the other three SLOT-VALUEish functions, but not for the setter).
3070 * minor incompatible change: the :SB-LDB feature is now enabled by
3071 default, and DISABLE-DEBUGGER and ENABLE-DEBUGGER also affect
3072 the low-level debugger.
3073 * enchancement: RUN-PROGRAM is now able to extract the file-descriptor
3074 from SYNONYM-STREAM and TWO-WAY-STREAM provided they can be decomposed
3075 down to an SB-SYS:FD-STREAM, allowing direct communication in
3076 more cases. Temporary files and pipes are still used as a fallback
3078 * thread-safety: DECODE-UNIVERSAL-TIME & GET-DECODED-TIME depended
3079 on the non-reentrant C functions localtime(3) and gmtime(3).
3080 * bug fix: global optimization policy was not visible in LOCALLY and
3082 * bug fix: class objects can be used as specializers in methods.
3083 (reported by Pascal Costanza)
3084 * bug fix: native unparsing of pathnames with :DIRECTORY NIL failed
3085 with a type error. (reported by blitz_ on #lisp)
3086 * bug fix: unparsing logical pathnames with :NAME :WILD :TYPE NIL
3087 failed with a type error. (reported by Pascal Bourguignon)
3088 * bug fix: merging pathnames against defaults with :DIRECTORY
3089 starting with '(:RELATIVE :BACK) should preserve the :BACK.
3090 (reported by James Y Knight)
3091 * bug fix: saving large (>2GB) cores on x86-64 now works
3092 * bug fix: a x86-64 backend bug when compiling (setf aref) with a
3093 constant index and a (simple-array (signed-byte 32)) array
3094 * bug fix: NAME-CHAR on an invalid symbol no longer signals an
3095 error (patch by Robert J. Macomber)
3096 * feature: TIME now displays the amount of run-time spent in GC
3097 * bug fix: The debugger now does a better job of respecting
3098 (PUSH '(*PRINT-CIRCLE* . T) SB-DEBUG:*DEBUG-PRINT-VARIABLE-ALIST*)
3099 when printing SB-DEBUG:*DEBUG-CONDITION*. (This is a debugger-only
3100 workaround for bug 403.)
3101 * bug fix: floating point exception handling now works on FreeBSD
3102 (thanks to NIIMI Satoshi)
3103 * fixed some bugs revealed by Paul Dietz' test suite:
3104 ** MISC.641: LET-conversion were not supposed to work in late
3106 * improvements to the Win32/x86 port:
3107 ** GET-INTERNAL-RUN-TIME implemented, thanks to Frank Buss.
3108 ** improved SB-BSD-SOCKETS support, thanks to Timothy Ritchey.
3110 changes in sbcl-0.9.13 relative to sbcl-0.9.12:
3111 * new feature: source path information is generated for macro-expansion
3112 errors for use in IDE's like Slime (thanks to Helmut Eller)
3113 * bug fix: calls to the compiler no longer modify *RANDOM-STATE*
3114 * bug fix: compiler does not loop forever on an invalid type in
3116 * improvement: compilation of most CLOS applications is significantly
3118 * optimization: added a limited bytecode compiler for simple toplevel
3119 forms, speeding up compilation and FASL loading
3120 * bug fix: the statistical profiler now properly distinguishes anonymous
3123 changes in sbcl-0.9.12 relative to sbcl-0.9.11:
3124 * minor incompatible change: in sbcl-0.9.11 (but not earlier
3125 versions) SB-MOP:FINALIZE-INHERITANCE would recursively descend
3126 into subclasses of the finalized class. Now user calls to
3127 FINALIZE-INHERITANCE finalize just the one class, and calls by the
3128 system return before any subclasses are finalized.
3129 * minor incompatible change: The reader no longer ignores errors
3130 regarding non-existent packages in #+ and #- feature tests.
3131 * new feature: command line options --no-sysinit, --no-userinit to
3132 inhibit loading the corresponding init files
3133 * new feature: add a generic function SOCKET-SEND to SB-BSD-SOCKETS,
3134 for sending data through UDP sockets (thanks to François-René Rideau)
3135 * minor incompatible change: SIGPIPE is ignored and "Broken pipe"
3136 error is signalled instead (thanks to François-René Rideau)
3137 * minor incompatible change: Error signalling behaviour of lexical
3138 operations violating package locks has changed slightly. Refer to
3139 documentation on package locks for details.
3140 * enhancement: EVAL can process IF-expressions without resorting to the
3142 * bug fix: Some operations involving SIN, COS, or TAN weren't being
3143 constant-folded properly due to missing out-of-line functions.
3144 (reported by Mika Pihlajamäki)
3145 * bug fix: LISTEN sometimes returned T even in cases where no data was
3146 immediately available from the stream
3147 * fixed bug: types of the last two arguments to SET-SYNTAX-FROM-CHAR
3148 were reversed. (reported by Levente Mészáros)
3149 * fixed bug: Tests for the (VECTOR T) type gave the wrong answer
3150 when given a vector displaced to an adjustable array. (reported
3152 * bug fix: derivation of float boundaries from numbers outside the
3153 appropriate float range (reported by John Wiseman)
3154 * bug fix: MAKE-LOAD-FORM-SAVING-SLOTS accepts en empty slot name
3156 * bug fix: precomputing cache entries for generic functions with
3157 some subclasses of specializers as yet invalid does not attempt to
3158 fill a cache line with a negative offset. (reported by Levente
3160 * improvements to DOCUMENTATION for TYPE and STRUCTURE doc-types:
3161 allow condition class objects as arguments to DOCUMENTATION and
3162 (SETF DOCUMENTATION); only find and set documentation for
3163 structure names for the STRUCTURE doc-type. (suggested by Gary
3165 * improvements to the Win32/x86 port:
3166 ** (user-homedir-pathname) and default initialization file
3167 locations now know about the user's "Documents and Settings"
3168 directory (thanks to Yaroslav Kavenchuk)
3169 ** run-program is implemented (thanks to Mike Thomas)
3170 ** sockets support (thanks to Timothy Ritchey)
3171 ** better backtrace support (thanks to Alastair Bridgewater)
3172 ** sb-grovel supported
3173 ** asdf-install and sb-posix work somewhat
3174 ** capable of running Slime using SWANK:*COMMUNICATION-STYLE* NIL
3175 * improvements to the Solaris/x86 port:
3176 ** works on Solaris 11/Solaris Express
3177 ** floating-point exception handling support
3178 ** support for the breakpoint-based TRACE :ENCAPSULATE NIL facility
3179 * fixed some bugs revealed by Paul Dietz' test suite:
3180 ** REMOVE-METHOD returns its generic function argument even when
3181 the method is not one of the generic functions' methods.
3182 ** objects declared as MEMBER types can be admissible arguments to
3183 structure accessors.
3184 ** printing characters should simply be printed by the FORMAT ~:C
3186 ** compiler failure when compiling functions with hairy constant
3187 defaults for optional parameters.
3188 ** compiler produces wrong code when MAYBE-INLINE-expanding a
3189 function, which is already optimized.
3191 changes in sbcl-0.9.11 relative to sbcl-0.9.10:
3192 * new platform: experimental support for SBCL x86/Darwin, including
3193 MacOS X 10.4.5 on Intel.
3194 * new feature: Unicode character names are now known to the system
3195 (through CHAR-NAME and NAME-CHAR).
3196 * new feature: the filesystem location of SBCL's core file is
3197 exposed to lisp through the variable SB-EXT:*CORE-PATHNAME*.
3198 * minor incompatible change: the contrib modules SB-POSIX and
3199 SB-BSD-SOCKETS no longer depend on stub C libraries; the intent of
3200 this change is to make it easier to distribute
3201 location-independent binaries.
3202 * bug fix: as implied by AMOP, standardized classes no longer have
3203 slots named by external symbols of public packages. (reported by
3205 * optimization: calling functions via constant symbols -- as in
3206 (FUNCALL 'FOO) -- is now roughly as efficient as calling them
3207 via the function object as in (FUNCALL #'FOO).
3208 * optimization: on x86 and x86-64, the calling convention for the
3209 case of dealing with an unknown number of values has been altered
3210 to be friendlier to the prediction heuristics implemented,
3211 particularly with reference to CALL and RET pairing. (thanks to
3212 Alastair Bridgewater)
3213 * optimization: on x86, the code for access to thread-local symbol
3214 values and binding/unbinding of thread-local symbols is smaller.
3215 (thanks to Alastair Bridgewater)
3216 * enhancement: CONSTANTP is now able to determine constantness of
3217 more complex forms, including calls to constant-foldable standardized
3218 functions and some special forms beyond QUOTE.
3219 * fixed bug: occasional GC crashes on Solaris/x86
3220 * optimization: x86-64 supports stack allocation of results of simple
3221 calls of MAKE-ARRAY, bound to variables, declared DYNAMIC-EXTENT
3222 * enchancement: the PROCESS-INPUT and -OUTPUT streams created by
3223 SB-EXT:RUN-PROGRAM can be used for both character and byte IO
3224 (thanks to James Knight)
3225 * fixed bug: CL:LISTEN always returns NIL at end of file, as required
3226 by the standard (thanks to Stephen Compall)
3228 changes in sbcl-0.9.10 relative to sbcl-0.9.9:
3229 * new feature: new SAVE-LISP-AND-DIE keyword argument :EXECUTABLE can
3230 be used for bundling the runtime and the core file into one
3231 executable binary. This feature is not currently supported on all SBCL
3232 platforms. (thanks to James Bielman and NIIMI Satoshi)
3233 * new feature: a generational or ephemeral garbage collector is now
3234 the default on the PowerPC platform (both Linux and Darwin). The
3235 old Cheney (stop and copy) collector is a build-time option.
3236 (thanks to Cyrus Harmon, after Raymond Toy)
3237 * minor incompatible change: the method by which SBCL finds its
3238 contributed modules has changed; it no longer relies on symbolic
3239 links from an $SBCL_HOME/systems directory, but searches directly
3240 in the subdirectories of $SBCL_HOME.
3241 * enhancement: the dynamic heap size on the Linux/PPC platform is
3242 markedly larger, even using the older Cheney garbage collector.
3243 * fixed bug #399: full call to DATA-VECTOR-REF in accesses to
3244 certain complicated string types. (reported by Gary King)
3245 * fixed bug: STRING-TO-OCTETS and OCTETS-TO-STRING did not convert
3246 character codes. (thanks to Yaroslav Kavenchuk and Ivan Boldyrev)
3247 * fixed bug: DOCUMENTATION on structures no longer signals an
3248 error if no structure type of the right name exists. (reported by
3250 * fixed bug: compiled calls to MAKE-INSTANCE where there is an
3251 applicable non-standard primary or :AROUND method on
3252 INITIALIZE-INSTANCE or SHARED-INITIALIZE and a non-keyword initarg
3253 no longer cause unbound variable errors. (reported by Kevin Reid)
3254 * fixed bug: metacircle resolution in cases where methods have slots
3255 added before the slots from STANDARD-METHOD. (reported by Jean
3257 * fixed bug: the Power PC assembly code for calling into lisp
3258 sometimes computed its return address wrongly (depending on the
3259 15th bit of the address, fixed at link time). This used to
3260 manifest itself in a segmentation violation while building PCL.
3261 (reported by Kevin Rosenberg, Eric Marsden, Lars Brinkhoff and
3262 many others over the years)
3263 * fixed bug: ROOM no longer reports silly numbers for stack usage if
3264 the stack pointer (treated as a signed integer) is negative.
3265 (thanks to Peter van Eynde)
3267 changes in sbcl-0.9.9 relative to sbcl-0.9.8:
3268 * new platform: experimental support for the Windows operating
3269 system has been added. (thanks to Alastair Bridgewater)
3270 * fixed several bugs in and robustified the PPC FFI (including
3271 callbacks). (thanks to Cyrus Harmon and Heiner Schwarte)
3272 * bug fix: allow non-simple string symbol names (reported by Paul
3274 * bug fix: interrupt handling on NetBSD (thanks to Richard M
3276 * bug fix: saving a core corrupted callbacks on x86/x86-64
3277 * bug fix: closed a loophole in metacircularity detection and
3278 grounding in the PCL implementation of CLOS.
3279 * bug fix: TRUENAME on "/" no longer returns a relative pathname.
3280 (reported by tomppa on #lisp)
3281 * bug fix: clear the direction flag on Lisp -> C transitions, as
3282 required by the x86-64 ABI. Fixes mysterious GC crashes on SuSE.
3283 (reported by Andrej Grozin and Hendrik Maryns)
3284 * optimization: major improvements to GC efficiency on GENCGC platforms
3285 * optimization: faster implementation of EQUAL
3286 * optimization: emit more efficient opcodes for some common
3287 immediate->register MOV instructions on x86-64. (thanks to Lutz Euler)
3288 * optimization: several other minor code-generation improvements on x86-64
3289 * fixed segfaults on x86 FreeBSD 7-current. (thanks to NIIMI Satoshi)
3291 changes in sbcl-0.9.8 relative to sbcl-0.9.7:
3292 * minor incompatible change: (SETF CLASS-NAME) and (SETF
3293 GENERIC-FUNCTION-NAME) are generic functions once more (reverting
3294 the change in the 0.9.7 release). (SETF CLASS-NAME) is specified
3295 by ANSI as a generic function, and for consistency (SETF
3296 GENERIC-FUNCTION-NAME) is treated likewise.
3297 * fixed bug #233.b: make constraint propagation notice when a variable
3298 value is changed after it is referenced but before it is used
3299 * fixed bug #296: no more arbitrary behaviour from filenames with
3300 odd characters as --load arguments. (reported by Adam Warner)
3301 * fixed bug #390: :CHARACTER-SET pathname components now work as
3302 expected. (reported by Tim Daly Jr)
3303 * fixed bug #391: complicated :TYPE intersections in slot
3304 definitions no longer cause an error in PCL internals.
3305 * fixed bug #392: plugged a hole in the obsolete-instance protocol.
3306 * bug fix: FILE-STRING-LENGTH is now external-format sensitive,
3307 returning the number of octets which would be written to the
3308 file-stream. (thanks to Robert J. Macomber)
3309 * bug fix: the SB-SIMPLE-STREAMS contrib passes external-format
3310 arguments to the internal stream functions. (thanks to David
3312 * bug fix: stack exhaustion is now handled on the x86/SunOS
3313 platform. (thanks to Daisuke Homma)
3314 * bug fix: more accurate ROOM results on GENCGC platforms
3315 * optimization: improved type inference for arithmetic-for
3316 index variables in LOOP
3317 * optimization: faster floating-point SQRT on x86-64
3318 * fixed some bugs revealed by Paul Dietz' test suite:
3319 ** DOCUMENTATION returns NIL instead of "" for method combinations
3320 that don't have a docstring
3322 changes in sbcl-0.9.7 relative to sbcl-0.9.6:
3323 * minor incompatible change: (SETF CLASS-NAME) and (SETF
3324 GENERIC-FUNCTION-NAME) are no longer generic functions, and
3325 therefore are not customizeable by user code (as seems to be at
3326 least permitted and maybe required by AMOP). As a consolation,
3327 however, the SBCL implementation of these functions now calls
3328 REINITIALIZE-INSTANCE as specified by AMOP.
3329 * bug fix: slot-definition documentation is propagated as per ANSI
3330 7.6.2 to EFFECTIVE-SLOT-DEFINITIONS.
3331 COMPUTE-EFFECTIVE-SLOT-DEFINITION now receives a :DOCUMENTATION
3332 argument, as do eslotd initialization methods. (from Pascal
3333 Costanza's "Closer" project)
3334 * bug fix: REINITIALIZE-INSTANCE on generic functions calls
3335 COMPUTE-DISCRIMINATING-FUNCTION (almost) unconditionally, as
3337 * bug fix: it is now possible to have more than one subclass of
3338 STANDARD-GENERIC-FUNCTION without causing stack overflow.
3339 (reported by Bruno Haible, Pascal Costanza and others)
3340 * bug fix: the dependent update protocol now works for generic
3341 functions. (thanks to Gerd Moellmann; reported by Bruno Haible
3342 and Pascal Costanza)
3343 * bug fix: condition-class instances corresponding to
3344 DEFINE-CONDITION forms are now created eagerly. (reported by
3345 Kalle Olavi Niemitalo on comp.lang.lisp)
3346 * bug fix: floating point printing is more accurate in some
3347 circumstances. (thanks to Simon Alexander)
3348 * bug fix: *COMPILE-FILE-PATHNAME* now contains the user's pathname
3349 merged with *DEFAULT-PATHNAME-DEFAULTS*.
3350 * bug fix: callbacks on OS X now preserve stack-alignment.
3351 (thanks to Cyrus Harmon)
3352 * enhancement: the x86-64 disassembler is much better at
3353 disassembling SSE instructions. (thanks to Lutz Euler)
3354 * enhancement: CHECK-TYPE on a variable now allows type-inference
3355 (thanks to Vincent Arkesteijn)
3356 * optimization: improved performance of EUC-JP external format.
3357 (thanks to NIIMI Satoshi)
3358 * optimization: performance improvements to IO on file streams of
3359 :ELEMENT-TYPE CHARACTER
3360 * optimization: much faster memory allocation on x86-64
3361 * optimization: faster garbage collections (latency and throughput)
3363 * optimization: faster bignum subtraction and division on x86 and x86-64
3364 (thanks to Lutz Euler)
3365 * optimization: more accurate type-inference for loops that use a
3366 floating point index variable or a negative step.
3368 changes in sbcl-0.9.6 relative to sbcl-0.9.5:
3369 * bug fix: add a workaround to SBCL looping infinitely at startup on
3370 Linux kernels with apparently buggy implementations of personality().
3371 (thanks to Svein Ove Aas)
3372 * bug fix: Unicode symbols are correctly printed in LDB backtraces
3373 (thanks to David Lichteblau)
3374 * bug fix: local bindings shadow global symbol macros for
3375 macroexpansion. (reported by Matthew D Swank on comp.lang.lisp)
3376 * optimization: non-open coded uses of numeric comparison operators
3377 (e.g. >) no longer cons when called with more than one parameter
3378 on platforms supporting dynamic-extent allocation.
3379 * enhancement: saving cores with foreign code loaded is now supported
3380 on MIPS/Linux in addition to the previously supported platforms.
3381 * bug fix: FIND-RESTART now tests for activity, not applicability when given
3382 a restart object as identifier. (reported by Helmut Eller for CMUCL)
3383 * bug fix: division by zero in sb-sprof when no samples were collected
3384 * bug fix: a race when a slow to arrive sigprof signal killed sbcl
3385 * bug fix: asdf-install uses CRLF as required by the HTTP spec.
3386 (thanks to Alexander Kjeldaas)
3387 * new feature: ignoring the return values of destructive functions
3388 like NREVERSE signals a compile-time style-warning.
3389 (thanks to Kevin Reid)
3390 * new feature: the alignment of alien structure fields can be
3391 explicitly specified. (thanks to Cyrus Harmon)
3392 * bug fix: run cleanup forms (in all threads) when receiving a SIGTERM
3393 and dump core on SIGQUIT
3395 ** incompatible change: threads do not inherit values of specials
3396 from their parents (see manual)
3397 ** bug fix: threads stacks belonging to dead threads are freed by the
3398 next exiting thread, no need to gc to collect thread stacks anymore
3399 ** minor incompatible change: INTERRUPT-THREAD-ERROR-ERRNO removed
3400 ** WITH-RECURSIVE-LOCK can be nested in a WITH-MUTEX for the same lock
3401 ** bug fix: dynamic variable and thread start related gc lossage
3402 ** bug fix: job control (SIGSTOP/SIGCONT) no longer confuses threads
3404 * fixed some bugs revealed by Paul Dietz' test suite:
3405 ** SUBTYPEP is slightly more accurate on heinously complicated
3406 CONS types where some of the members have uncertain (in the
3407 NIL, NIL sense) type relationships to each other.
3409 ** Cores produced by SAVE-LISP-AND-DIE on GENCGC platforms are
3410 no longer purified unless :PURIFY T is explicitly specified.
3411 ** Non-purified cores are significantly smaller than before
3413 changes in sbcl-0.9.5 relative to sbcl-0.9.4:
3414 * new feature: timers based on Zach Beane's excellent timer package
3415 * added support for the following external formats: koi8-u,
3416 x-mac-cyrillic, cp437, cp850, cp852, cp855, cp857, cp860, cp861,
3417 cp862, cp863, cp864, cp865, cp866, cp869, cp874, iso-8859-2,
3418 iso-8859-3, iso-8859-4, iso-8859-5, iso-8859-6, iso-8859-7,
3419 iso-8859-8, iso-8859-9, iso-8859-10, iso-8859-11, iso-8859-13,
3420 iso-8859-14, cp1250, cp1251, cp1252, cp1253, cp1254,
3421 cp1255,cp1256, cp1257, cp1258 (contributed by Ivan Boldyrev)
3422 * incompatible change: a threaded SBCL will no longer revert to
3423 non-threaded mode on non-NPTL systems, but refuse to start entirely.
3424 * bug fix: interrupts are disabled until startup is complete; no
3425 more sigsegvs when receiving a signal to soon
3426 * optimization: faster 32-bit SB-ROTATE-BYTE:ROTATE-BYTE on non-x86/ppc
3428 * bug fix: add a workaround for the memory randomization features in
3429 Linux kernels >= 2.6.12 that interfere with SBCL's memory maps. This
3430 workaround will only be in effect on systems with the proc filesystem
3432 * bug fix: printing objects of type HASH-TABLE signals a
3433 PRINT-NOT-READABLE error when *READ-EVAL* is NIL. (reported by
3435 * bug fix: GET-INTERNAL-REAL-TIME now works even for processes that
3436 have been running for over 50 days. (reported by Gilbert Baumann)
3437 * bug fix: the logic for getting names of functions gets less
3438 confused when confronded with alternate-metaclass
3439 funcallable-instances. (reported by Cyrus Harmon)
3440 * bug fix: FUNCTIONP and (LAMBDA (X) (TYPEP X 'FUNCTION)) are now
3441 consistent, even on internal alternate-metaclass objects.
3442 * bug fix: flush closure information collected by physical
3443 environment analysis prepass before the main pass. (bug reported
3445 * bug fix: compiler pack phase does not modify a hashtable, which is
3446 iterated. (reported by Bryan O'Connor, fixed by Rob MacLachlan)
3447 * bug fix: backquote does not optimize (LIST* x y) to CONS when x
3448 may be expanded. (reported by Alexander <malishev> on c.l.l)
3449 * bug fix: no more style-warnings when compiling code using LAST
3450 under high-SPEED low-SPACE settings. (reported by David Wallin
3452 * fixed some incompatibilities between SBCL's MOP and the MOP
3454 ** the METAOBJECT class is now implemented;
3455 ** FUNCALLABLE-STANDARD-OBJECT is now a subclass of
3456 STANDARD-OBJECT, as required;
3457 ** the classes STANDARD-CLASS and FUNCALLABLE-STANDARD-CLASS are
3458 now compatible (as required by VALIDATE-SUPERCLASS); there
3459 remains a consistency requirement over the presence or absence
3460 of the FUNCTION class in the superclass list of finalized
3461 classes; see the manual for more details;
3462 ** the :AROUND method for COMPUTE-SLOTS on
3463 FUNCALLABLE-STANDARD-CLASS now honours the primary method's
3464 requested slot ordering.
3466 ** bug fix: parent thread now can be gc'ed even with a live
3468 ** bug fix: binding a special with PROGV to no value is not
3469 the same as that symbol not having been bound (thanks to
3471 ** bug fix: binding specials is thread safe (thanks to
3473 ** bug fix: interrupt handlers are now per-process, RUN-PROGRAM
3474 and SB-SPROF do not die with 'no handler for signal XX in
3475 interrupt_handle_now(..)' anymore
3476 ** bug fix: WITH-TIMEOUT works with multiple running threads
3477 * fixed some bugs revealed by Paul Dietz' test suite:
3478 ** ENSURE-GENERIC-FUNCTION should take a method class object for
3479 the :method-class keyword argument.
3481 changes in sbcl-0.9.4 relative to sbcl-0.9.3:
3482 * new port: the Solaris operating system on x86 processors is now
3483 mostly supported, though some rough edges in the environment
3484 remain. (thanks to Daisuke Homma)
3485 * enhancement: SBCL on MIPS platforms now has a much larger dynamic
3486 space for its heap. (thanks to Thiemo Seufer)
3487 * optimization: SBCL on MIPS platforms now supports dynamic-extent
3488 closures. (thanks to Thiemo Seufer)
3489 * minor incompatible change: eof selects abort in the debugger.
3490 * minor incompatible change: *INVOKE-DEBUGGER-HOOK* is run before
3491 *DEBUGGER-HOOK* => *DEBUGGER-HOOK* is not run when the debugger
3493 * minor incompatible change: SB-KERNEL:INSTANCE-LAMBDA is
3494 deprecated, and will go away in a future revision of SBCL.
3495 * minor incompatible change: GC-ON and GC-OFF are no longer
3496 implemented with a counter, it does not matter how many times gc
3497 is switched on or off
3498 * bug fix: discriminating functions for generic function classes
3499 with non-standard methods for COMPUTE-APPLICABLE-METHODS no longer
3500 make invalid assumptions about method precedence order. (reported
3502 * bug fix: TRUNCATE now correctly signals division by zero on MIPS
3503 platforms. (thanks to Thiemo Seufer)
3504 * bug fix: degree sign (<U00B0>) could not be encoded in KOI8-R.
3505 * bug fix: correct pathname printing with printer escaping is on.
3506 (thanks to Kevin Reid)
3507 * bug fix: complex VOP definitions in "user-space" no longer trigger
3508 package locks. (reported by Zach Beane)
3509 * fixed bug 343: SB-KERNEL:INSTANCE-LAMBDA is no longer necessary
3510 for funcallable-instance functions, and is no different from
3512 * bug fix: PARSE-INTEGER no longer depends on the whitespaceness of
3513 characters in the current readtable. (reported by Nicholas Neuss)
3514 * bug fix: SUBTYPEP on various CONS types returns more a more
3515 accurate acknowledgment of its certainty.
3516 * optimizations: REMOVE-DUPLICATES now runs in linear time on
3517 lists in some cases. This partially fixes bug 384.
3518 * flush all standard streams before prompting in the REPL and the
3520 * bug fix: signal handling and triggering gc do not conflict
3521 directly anymore, in particular a high frequency sb-sprof does
3522 not prevent gc from running
3523 * bug fix: DECODE-UNIVERSAL-TIME now uses a more reasonable
3524 approximation for timezone and DST information between the
3525 universal time epoch and the smallest negative 32-bit time_t.
3526 * bug fix: ENCODE-UNIVERSAL-TIME no longer errors when passed the
3527 year 1899 so long as the encoded time is non-negative.
3528 * bug fix: on the x86 platform, SB-ROTATE-BYTE:ROTATE-BYTE returns
3529 the correct answer for non-constant rotate amounts when performing
3530 an inline 32-bit rotation.
3532 ** bug fix: RELEASE-FOREGROUND doesn't choke on session lock if
3533 there is only one thread in the session
3534 ** bug fix: memory leak for streams created in one thread and
3535 written to in another
3536 ** bug fix: lockup when compiled with gcc4
3537 ** bug fix: race that allows the gc to be triggered when gc is
3539 ** bug fix: one less memory fault in INTERRUPT-THREAD, again
3540 ** bug fix: gc and INTERRUPT-THREAD don't hang when the RT signal
3542 ** bug fix: finished threads are gc'ed properly
3543 * fixed some bugs revealed by Paul Dietz' test suite:
3544 ** CALL-NEXT-METHOD signals an error (in safe code) when the call
3545 has arguments with a different set of applicable methods from
3546 the orignal arguments.
3547 ** The type error thrown by MAP now has a correct expected-type
3549 ** DISASSEMBLE now throws a TYPE-ERROR when its argument does not
3550 name a compiled function.
3551 ** Three MISC tests where a large bignum was improperly coerced to
3552 a float that couldn't represent that bignum during type
3553 derivation were fixed.
3554 ** SUBTYPEP can now handle types involving the negation of a
3555 list-form FUNCTION type.
3556 ** SUBTYPEP also now handles certain COMPLEX type specifiers such
3557 as (COMPLEX (AND RATIO (NOT FIXNUM))).
3558 ** READ-BYTE and WRITE-BYTE no longer take stream designators.
3560 changes in sbcl-0.9.3 relative to sbcl-0.9.2:
3561 * New feature: Experimental support for bivalent streams: streams
3562 opened with :element-type :default now allow character and binary
3563 (unsigned-byte 8) I/O
3564 * Support for the koi8-r external format. (thanks to Ivan Boldyrev)
3565 * Bug fix: OPEN no longer fails when *PRINT-READABLY* is T. (thanks
3567 * bug fix: no more highly sporadic "couldn't check whether ~S is
3568 readable" when reading a stream and an interrupt hits in the middle
3569 of a select system call
3570 * compiler better recognizes complex arrays (reported by Eduardo
3572 * bug fix: out-of-line SB-SYS:FOREIGN-SYMBOL-ADDRESS did not work
3573 for variables on SBCL built with linkage-tables. (reported by Luis
3575 * various error reporting improvements.
3576 * optimizations: LOGNOR on fixnums is improved in the MIPS backend.
3577 (Thanks to Thiemo Seufer)
3578 * bug fix: nested reader invokations work correctly
3579 * bug fix: it is possible to have simultaneous references to foreign
3580 code and foreign data with the same name.
3582 ** added x86-64 support
3583 ** incompatible change: the threading api now works with thread
3584 objects instead of thread ids
3585 ** bug fix: threads are protected from signals and interruption when
3586 starting up or going down
3587 ** bug fix: a race where an exiting thread could lose its stack to gc
3588 ** bug fix: don't halt on infinite error in threads if possible
3589 ** fixed numerous gc deadlocks introduced in the pthread merge
3590 ** bug fix: fixed thread safety issues in read and print
3591 ** bug fix: debugger doesn't hang on session lock if interrupted at
3592 an inappropriate moment
3593 ** bug fix: run-program is now thread safe(r)
3594 ** bug fix: inner with-recursive-lock no longer releases the mutex
3595 * fixed a bug in (DECODE-UNIVERSAL-TIME 0) (reported by Paul Dietz)
3596 * fixed some bugs revealed by Paul Dietz' test suite:
3597 ** TYPE-ERRORs from signalled by COERCE now have DATUM and
3598 EXPECTED-TYPE slots filled.
3599 ** MULTIPLE-VALUE-SETQ always returns the primary value of the
3601 ** MAKE-CONDITION accepts classes as type-designators.
3602 ** COMPILE may never return NIL.
3603 ** ENCODE-UNIVERSAL-TIME now guards against times out of Unix's
3604 range before calling Unix time functions
3606 changes in sbcl-0.9.2 relative to sbcl-0.9.1:
3607 * numerous signal handling fixes to increase stability
3608 * Support for EUC-JP external format. (thanks to NIIMI Satoshi)
3609 * minor incompatible change: we now correctly canonize default
3610 initargs, making them be a list of (INITARG INITFORM INITFUNCTION)
3611 as per the MOP, rather than the historical (INITARG INITFUNCTION
3612 INITFORM). (reported by Bruno Haible)
3613 * new feature: WITH-COMPILATION-UNIT now accepts a non-standard
3614 :SOURCE-PLIST option. See (DOCUMENTATION #'WITH-COMPILATION-UNIT T)
3615 for more information.
3616 * TRUENAME and PROBE-FILE now correctly resolve symlinks even if the
3617 pathname is a directory pathname.
3618 * SB-SPROF now works (more) reliably on non-GENCGC platforms.
3619 * dynamic space size on PPC has been increased to 768Mb. (thanks to
3621 * SB-MOP:ENSURE-CLASS-USING-CLASS now accepts a class as the
3622 :METACLASS argument in addition to a class name. (reported by
3623 Bruno Haible for CMUCL, patch for CMUCL by Gerd Moellmann)
3624 * RESTART-CASE can now be wrapped around CALL-METHOD forms.
3625 (reported by Bruno Haible; patch from Gerd Moellmann)
3626 * bug fix: sbcl runtime can now be compiled with gcc4 (thanks to
3628 * bug fix: more cleanups to the floating point exception handling on
3629 x86-64 (thanks to James Knight)
3630 * bug fix: the compiler does not try to constant fold calls of
3631 COERCE and BIT-* functions when they return freshly constructed
3632 objects. (reported by Nikodemus Siivola and Paul Dietz)
3633 * optimization: improved the MIPS versions of generic (in the
3634 generic sense) arithmetic routines. (thanks to Thiemo Seufer)
3635 * optimization: direct conversion of (unsigned-byte 32) to floats on
3636 the PowerPC platform.
3637 * optimization: structure instances with raw slots now use less
3638 memory, and probably show better memory locality. (thanks to
3640 * optimization: DYNAMIC-EXTENT declarations for lists and closures
3641 are treated as requests for stack allocation on the x86-64,
3642 Alpha-32, PPC and SPARC platforms.
3643 * contrib improvement: it's harder to cause SOCKET-CLOSE to close()
3644 the wrong file descriptor; implementation of SOCKET-OPEN-P.
3645 (thanks to Tony Martinez)
3647 ** gcing a dead thread can no longer lead to lockups
3648 ** threads block signals until they are set up properly
3649 ** errno is no longer shared by threads
3650 ** interrupt-thread restores the eflags register on x86
3651 ** fixed some lockups due to gc/thread interaction
3652 * fixed some bugs revealed by Paul Dietz' test suite:
3653 ** invalid dotted lists no longer raise a read error when
3654 *READ-SUPPRESS* is T
3655 ** signal an error if a symbol that names a declaration is used
3656 as the name of a type, or vice versa
3657 ** allow using the (declare (typespec var*)) abbreviation for
3658 (declare (type typespec var*)) with all type specifiers
3659 ** circularity detection works properly with PPRINT-LOGICAL-BLOCK
3660 ** always return NIL from PPRINT-POP when OBJECT is NIL
3661 ** don't signal errors when pretty-printing malformed LABELS,
3662 FLET or MACROLET forms
3663 ** declarations in a DOLIST body are also in scope for the
3665 ** COMPILE-FILE accepts all pathname designators as INPUT-FILE
3667 ** the ELEMENT-TYPE keyword argument to WITH-OUTPUT-STREAM is
3670 changes in sbcl-0.9.1 relative to sbcl-0.9.0:
3671 * fixed cross-compiler leakages that prevented building a 32-bit
3672 target with a 64-bit host compiler.
3673 * fixed a bug in CLOSE :ABORT T: no longer attempts to remove files
3674 opened with :IF-EXISTS :OVERWRITE.
3675 * fixed bug 281: error for an invalid qualifier in a short-form method
3676 combination method is not signalled until the faulty method is called.
3677 * bug fix: iteration variable type inferrer failed to deal with open
3678 intervals. (reported by Alan Shields)
3679 * bug fix: dynamically loading (via LOAD-SHARED-OBJECT or similar)
3680 "frameworks" on Mac OS X no longer causes an EXC_BAD_ACCESS if two
3681 or more runtime options were provided to the sbcl binary.
3682 * compiled code is not steppable if COMPILATION-SPEED >= DEBUG.
3683 * contrib improvement: implement SB-POSIX:MKSTEMP (Yannick Gingras)
3684 * optimization: there's now a fast-path for fixnum arguments in the
3685 generic subtraction routines on x86/x86-64. (Thanks to Lutz Euler)
3686 * optimization: the code generated on x86-64 is more compact thanks
3687 to not outputting unneccessary prefix bytes. (Thanks to Lutz Euler)
3688 * bug fix: floating-point exception handling now partly works on
3689 x86-64. (Thanks to James Knight)
3690 * improvement to the MIPS backend from Thiemo Seufer: C-style
3691 64-bit long long arguments and return values to alien functions
3693 * fixed some bugs revealed by Paul Dietz' test suite:
3694 ** the type-error signalled from WARN has a filled-in DATUM slot.
3695 ** the type-error required when a stream is not associated with
3696 a file has the stream as its datum.
3697 ** type-errors on single-floats on x86-64 no longer have
3698 :INVALID-OBJECT as the datum
3699 ** the type-errors signalled for invalid function names now have
3700 a correct expected type
3701 ** (SETF (DOCUMENTATION ... 'STRUCTURE)) no longer signals an error
3702 for structures defined with a :TYPE. Documentation strings for
3703 typed structures are no longer immediately discarded
3704 ** FILE-STRING-LENGTH and STREAM-EXTERNAL-FORMAT now work on
3705 broadcast streams and synonym streams. FILE-LENGTH now also works
3706 on broadcast streams.
3708 changes in sbcl-0.9.0 relative to sbcl-0.8.21:
3709 * incompatible change: the --noprogrammer option, deprecated since
3710 version 0.7.5, has been removed. Please use the equivalent
3711 --disable-debugger option instead.
3712 * incompatible change: finalizers and *AFTER-GC-HOOKS* are now run with
3714 * incompatible change: support for *BEFORE-GC-HOOKS* (that have been
3715 inoperational for a while now) has been completely removed.
3716 * null lexical environments are now printed as #<NULL-LEXENV>,
3717 significantly reducing the amount of clutter in typical backtraces.
3718 * documentation on weak pointers, finalization, and after GC hooks
3719 has been added to the manual.
3720 * optimization: REPLACE on declared (UNSIGNED-BYTE 8) vectors, as well
3721 as other specialized array types, is much faster. SUBSEQ and
3722 COPY-SEQ on such arrays have also been sped up.
3723 * optimization: EQL is now more efficient when at least other argument
3724 is known to be of type (OR FIXNUM (NOT NUMBER)).
3725 * fixed bug: the runtime is now less vulnerable to changes in the
3726 size of the SBCL object on OS X, and virtual memory is reserved for
3727 all spaces that need to be at a fixed address.
3728 * fixed bug: finalizers are now thread-safe. (thanks to Gabor Mellis)
3729 * fixed bug: finalizers and after GC hooks that cause consing are now
3731 * fixed bug: compiler error messages and summaries are now printed to
3732 *ERROR-OUTPUT*, not *STANDARD-OUTPUT*.
3733 * fixed inference of the upper bound of an iteration variable.
3734 (reported by Rajat Datta).
3735 * fixed bug 211e: calling local functions with duplicated constant
3736 keyword argument no longer causes a bogus style warning about an
3738 * fixed bug 305: INLINE/NOTINLINE declaration no longer causes local
3739 ftype declaration to be disregarded. (reported by Dave Roberts)
3740 * fixed bug 373: caused by erronous compilation of references to alien
3741 variables in the runtime on ppc/darwin.
3742 * fixed bug 376: CONJUGATE type deriver.
3743 * fixed infinite looping of ALIEN-FUNCALL, compiled with high DEBUG.
3744 (reported by Baughn on #lisp)
3745 * a cross-compiler bug on non-x86 platforms has been identified and
3746 fixed. (thanks to Bruno Haible)
3747 * improvements to the MIPS runtime code for increased stability.
3748 (thanks to Thiemo Seufer)
3749 * increased the maximimum compact environment size to allow
3750 purify on images with large amounts of functions. (thanks to Cyrus Harmon)
3751 * partial workaround for bug 135: don't name the function we're
3752 calling for hairy cases of EVAL, so as not to accumulate one environment
3753 entry per call to EVAL. (reported by Kevin Reid)
3754 * improvements to the x86-64 disassembler. (thanks to Lutz Euler)
3755 * optimization: type testing for non-vector arrays should be faster.
3756 * fixed TRACE :ENCAPSULATE NIL, added support for :ENCAPSULATE NIL
3758 * bug fix: setting 31st element of a bit vector to zero did not work
3760 * bug fix: redefining a class definition which failed due to a
3761 previous accessor / function clash now works (but see BUGS entry
3762 #380 for more problems in this area). (thanks to Zach Beane)
3763 * the long form of DEFINE-METHOD-COMBINATION disables method group
3764 checking when given a single method group with pattern *. (thanks
3766 * on x86 compiler supports stack allocation of results of simple
3767 calls of MAKE-ARRAY, bound to variables, declared DYNAMIC-EXTENT.
3768 * support for building and running on Mac OS X 10.4 "Tiger" has been added
3769 ** Binaries built on Tiger will not run on 10.2 "Jaguar" currently
3770 * fixed some bugs related to Unicode integration:
3771 ** the restarts for recovering from input and output encoding
3772 errors only appear when there is in fact such an error to
3774 * fixed some bugs revealed by Paul Dietz' test suite:
3775 ** MISC.549 and similar: late transformation of unsafe type
3776 assertions into derived types caused unexpected code
3778 ** SCALE-FLOAT type deriver is less wrong.
3779 ** type derivers for EXP, LOG and similar functions compute result
3780 types for complex arguments better.
3781 ** (MISC.563) CONJUGATE type deriver works for very restricted
3783 ** out-of-line type testers for character strings are available.
3784 ** EQUAL compiler transform understands specialness of objects
3786 ** accessing double-floats stored on the stack now works on x86-64.
3787 ** debugger internals could sometimes create invalid lispobjs,
3788 resulting in GC crashes.
3789 ** MISC.548: type check weakening can convert required type into
3791 ** initialization forms for bindings are not in scope of free special
3794 changes in sbcl-0.8.21 (0.9alpha.1?) relative to sbcl-0.8.20:
3795 * incompatible change: thread support for non-NPTL systems has
3796 been removed - locking is buggy and unreliable. A threaded
3797 SBCL build will now warn at startup and refuse to create
3798 new threads, unless futex support is detected in the kernel
3799 * incompatible change: the top level REPL now has only an ABORT
3800 restart associated with it, not TOPLEVEL and ABORT as it used to.
3801 TOP and TOPLEVEL are now available as debugger commands for
3802 returning to the top level.
3803 * incompatible change: forms evaluated in the REPL now use the
3804 global optimization policy.
3805 * incompatible change: user- and system-initialization files are
3806 no longer processed with LOAD, but by READ and EVAL; hence the
3807 global optimization policy, startup package, readtable, etc,
3809 * The .fasl file format number has been incremented because of
3810 various incompatible changes.
3811 * internal entry point details and argument counts no longer appear
3812 in backtraces unless explicitly requested by setting
3813 SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS*.
3814 * built-in and standard functions no longer have names like "top
3815 level local call to FOO".
3816 * fixed bug 32: functions defined in non-null lexical environments
3817 now have more legible printed representation
3818 * fixed bug 33: functions defined in non-null lexical environemnts
3819 are now more amenable to inspection by INSPECT.
3820 * workaround for bug 354: XEPs no longer appear in backtraces unless
3821 explicitly requested.
3822 * fixed bug: receiving the signal which results from attempting to
3823 write to mprotect()ed memory (SIGSEGV on Linux and some *BSDs,
3824 SIGBUS on other *BSDs) on architectures where the C stack is also
3825 the Lisp stack (x86 and x86-64) from foreign code no longer leads
3826 to debugger confusion or wild instability. (reported by Cheuksan
3828 * fixed bug: COUNT and EQUAL no longer issue compiler efficiency
3829 notes when operating on objects known to be SIMPLE-BIT-VECTORs.
3830 (reported by Lutz Euler)
3831 * fixed bug: (TYPEP X '(MEMBER ...)) no longer returns a list in
3832 compiled code. (reported by Paul Dietz)
3833 * fixed bug 276b: mutating with MULTIPLE-VALUE-SETQ a binding of a
3834 specialized parameter to a method to something that is not TYPEP
3835 the specializer is now possible.
3836 * fixed bug: the MAKE-INSTANCE optimization is now correct in the
3837 face of package deletion.
3838 * fixed bug: LOAD should bind *LOAD-PATHNAME* to the merged
3839 pathname. (reported by David Tolpin on c.l.l)
3840 * contrib improvement: the SB-SIMPLE-STREAMS contrib now defines
3841 STRING-SIMPLE-STREAM and FILE-SIMPLE-STREAM as subclasses of
3842 STRING-STREAM and FILE-STREAM, respectively.
3843 * contrib improvement: SB-INTROSPECT handles more of SLIME's needs
3844 than previously; in addition, its test suite is now run on build.
3845 (thanks to Luke Gorrie)
3846 * a more robust x86-64 disassembler. (thanks to Lutz Euler)
3847 * optimization: added a immediate representation for single-floats
3849 * fixed some bugs revealed by Paul Dietz' test suite:
3850 ** MISC.564: defined out-of-line version of %ATAN2 on x86.
3851 ** attempting to create a package with a colliding nickname causes
3852 correctable errors to be signalled.
3853 ** MISC.572-574: :START1 and :START2 broken for simple-base-strings.
3854 ** several x86-64 backend bugs related to sign-extension of immediate
3857 changes in sbcl-0.8.20 (0.9alpha.0?) relative to sbcl-0.8.19:
3858 * fixed inspection of specialized arrays. (thanks to Simon Alexander)
3859 * fixed disassembly of SHLD and SHRD on x86. (thanks to David
3861 * fixed loading of multiply forward-referenced layouts.
3862 (thanks to Cheuksan Wang)
3863 * fixed bug 7: less verbose COMPILE-FILE output. Additionally, the
3864 output is now directed to *STANDARD-OUTPUT* as specified by ANSI.
3865 (see COMPILE-FILE documentation for details of :PRINT option)
3866 * fixed bugs 19 and 317: fixed-format floating point printing is
3867 more accurate. This also fixes a bug reported by Adam Warner
3868 related to the ~@F format directive.
3869 * fixed bug 371: bignum print/read inconsistency. (thanks to Harald
3871 * fixed bug: SET-SYNTAX-FROM-CHAR correctly shallow-copies a
3872 dispatch table if the from-char is a dispatch macro character.
3873 * fixed bug: COUNT and EQUAL on bit vectors with lengths divisible
3874 by the wordsize no longer ignore the last word. (reported by Lutz
3876 * fixed bug in type checking of dynamic-extent variables. (reported
3878 * optimization: sequence traversal functions use their freedom to
3879 coerce function designators to functions.
3880 * optimization: code with many calls to CLOS methods specialized on
3881 CLOS classes has had redundant type checks removed.
3882 * optimization: added declarations to speed up operations that access
3883 the internal character database (for example STRING-UPCASE)
3884 * optimization: comparison operations between floats and sufficiently small
3885 fixnums no longer create extra rationals
3886 * fixed some bugs related to Unicode integration:
3887 ** portions of multibyte characters at the end of buffers for
3888 character-based file input are correctly transferred to the
3889 start of the buffer at the next read.
3890 ** COMPILE-FILE now respects any EXTERNAL-FORMAT argument given,
3891 passing it through to OPEN.
3892 ** LOAD on source files likewise passes any EXTERNAL-FORMAT
3893 argument given to internal calls to OPEN.
3894 ** the built-in comment readers (introduced by character sequences
3895 ";" and "#|") are more forgiving to encoding errors; they will
3896 STYLE-WARN and then attempt to resync the stream at a character
3897 boundary. (thanks to Teemu Kalvas)
3898 * fixed some bugs in the x86-64 port:
3899 ** Negative short int return values from c-calls are sign-extended
3901 ** The stack is aligned to 16-bytes for c-calls, as required by
3902 the ABI. (thanks to Cheuksan Wang)
3903 ** The disassembler understands more x86-64. (thanks to Cheuksan Wang)
3904 ** The regression tests use SB-ALIEN:INT instead of SB-ALIEN:INTEGER
3905 for enums. (thanks to Vincent Arkesteijn)
3906 ** Multiple small optimizations and bugfixes for floating point
3908 * fixed some bugs revealed by Paul Dietz' test suite:
3909 ** Space, Tab, Linefeed, Return and Page have the invalid
3910 secondary constituent character trait.
3911 ** SET-SYNTAX-FROM-CHAR correctly copies multiple-escape character
3913 ** WITH-INPUT-FROM-STRING should only update the index place on
3915 ** Pretty-printing backquoted forms when *PRINT-CIRCLE* is true
3916 works more reliably.
3917 ** Bit-array operations (BIT-AND and similar) worked incorrectly
3918 with one-dimensional arrays with fill pointers.
3919 ** TYPE-OF failed on a complex with an integer realpart and a
3921 ** compiler failure during type inference for the code of form
3922 (IF (EQL X (THE ...)) ...) (MISC.535).
3924 changes in sbcl-0.8.19 relative to sbcl-0.8.18:
3925 * new port: SBCL now works in native 64-bit mode on x86-64/Linux
3926 platform. The port supports 61-bit fixnums, large memory spaces
3927 and reloading shared object files.
3928 * enhancement: saving cores with foreign code loaded is now
3929 supported on ppc/Darwin in addition to the previously supported
3931 * enhancement: the statistical profiler now walks deeper into the
3932 call stack for more meaningful call-graphs and accrued time
3933 reports (x86/x86-64 only). It also now reports time spent in
3935 * enhancement: it is now possible to trace most individual methods
3936 of a generic function in addition to tracing the generic function
3938 * bug fix: invalid :DEFAULT-INITARGS are detected in compiled calls
3940 * bug fix: defaulted initargs are passed to INITIALIZE-INSTANCE and
3941 SHARED-INITIALIZE methods from compiled calls to MAKE-INSTANCE.
3942 * bug fix: COERCE to (COMPLEX FLOAT) of a complex number no longer
3943 produces an error. (thanks to Vincent Arkesteijn)
3944 * bug fix: NAMESTRING on pathnames with :WILD components in their
3945 directories works correctly. (thanks to Artem V. Andreev)
3946 * fixed bug 125: compiler preserves identity of closures. (reported
3948 * bug fixed: functions with &REST arguments sometimes failed with
3949 "Undefined function" when compiled with (DEBUG 3). (reported by
3951 * bug fix: overflow during compiling of setting element of a bit
3952 vector with constant index and value. (reported by Timmy Douglas)
3953 * build fix: fixed the dependence on *LOAD-PATHNAME* and
3954 *COMPILE-FILE-PATHNAME* being absolute pathnames.
3955 * on x86 compiler partially supports stack allocation of dynamic-extent
3957 * GO and RETURN-FROM do not check the extent of their exit points
3958 when compiled with SAFETY 0.
3959 * fixed some bugs related to Unicode integration:
3960 ** encoding and decoding errors are now much more robustly
3961 handled; it should now be possible to recover even from invalid
3962 input or output to the terminal. (thanks to Teemu Kalvas)
3963 ** provided a first cut at implementing STRING-TO-OCTETS and
3964 OCTETS-TO-STRING. (thanks to Robert J. Macomber)
3965 ** altered the SB-MD5 contributed module slightly, changing the
3966 interface just enough for it to be supportable for builds where
3967 lisp characters are not eight bits.
3968 * fixed some bugs revealed by Paul Dietz' test suite:
3969 ** the FORMATTER-generated functions for ~V[ conditionals require
3970 the correct number of arguments.
3971 ** READ-FROM-STRING returns the mandated second value when applied
3972 to displaced strings.
3973 ** the #\Rubout and #\Backspace characters are treated as invalid
3974 constituent characters by the tokenizer.
3976 changes in sbcl-0.8.18 relative to sbcl-0.8.17:
3977 * new feature: reloading changed shared object files with
3978 LOAD-SHARED-OBJECT now causes the new definitions to take effect.
3979 * new feature: references to foreign variables and functions
3980 can now be compiled and loaded before the corresponding shared
3981 object file is loaded, as long as the foreign definitions are
3982 available at runtime.
3983 * Solaris 10 (aka SunOS 5.10) on the SPARC platform is now
3984 supported. (thanks to Dan Debertin)
3985 * SB-ALIEN enums can now be represented in Lisp by any symbols, not
3986 just keywords. (thanks to Vincent Arkesteijn)
3987 * fixed bug #331: structure-class instances corresponding to
3988 DEFSTRUCT forms are now created eagerly.
3989 * fixed bug #345: backtraces from calls to undefined functions work
3990 on x86 as well. Related bug #61 is now also partially fixed on x86
3991 (backtraces from throws to unknown catch tags.)
3992 * bug fix: lambda-list parsing is now stricter vrt. order and number
3993 of lambda-list keywords.
3994 * bug fix: as specified by AMOP, an error is signalled if a
3995 class-option appears multiple times in a DEFCLASS form. (reported
3997 * bug fix: RANDOM can be compiled when the compiler derives the type
3998 of its numeric argument as a disjoint set of small integers.
3999 (reported by Paul Dietz)
4000 * bug fix: starting a core saved with shared objects loaded when
4001 those objects are not available no longer causes threaded SBCL to
4002 hang. (reported by Sean Ross)
4003 * bug fix: evaluated FUNCTION no longer bypasses encapsulation (eg.
4005 * bug fix: (SETF MACRO-FUNCTION) now accepts an optional environment
4006 argument, which must always be NIL. (reported by Kalle Niemitalo)
4007 * bug fix: printing 1.0d+23 no longer results in an error.
4008 (reported by Rolf Wester for CMUCL; bug fix from Raymond Toy)
4009 * bug fix: structure slot setters preserve evaluation order. (thanks
4011 * fixed some bugs related to Unicode integration:
4012 ** RUN-PROGRAM can allow its child to take input from a Lisp
4013 stream. (reported by Stefan Scholl)
4014 ** ASDF-INSTALL successfully downloads .tar.gz files in all
4015 locales. (reported by Ken Causey)
4016 * fixed some bugs revealed by Paul Dietz' test suite:
4017 ** INCF, DECF and REMF evaluate their place form as specified in
4019 ** FORMATTER expands ~{ ~} iteration directives with V or #
4020 parameters correctly.
4021 ** FORMATTER deals with the ~@[ ~] conditional directive where the
4022 consequent uses no arguments correctly.
4023 ** the system has a partial understanding of the (COMPLEX RATIO)
4025 ** UPGRADED-COMPLEX-PART-TYPE obeys the lattice upgrading rules
4028 changes in sbcl-0.8.17 relative to sbcl-0.8.16:
4029 * new feature: a build-time option (controlled by the :SB-UNICODE
4030 keyword feature, enabled by default) for building the system with
4031 support for the entire 21-bit character space defined by the
4033 * new feature: the system now has rudimentary external-format
4034 support; the primary user-visible change at this time is that
4035 characters with the high bit set (such as lower-case-e-acute) will
4036 print correctly to a terminal in a UTF-8 environment.
4037 * minor incompatible change: BASE-CHAR no longer names a class;
4038 however, CHARACTER continues to do so, as required by ANSI.
4039 * minor incompatible change: SB-DEBUG:*DEBUG-PRINT-FOO* variables
4040 are no longer supported, and SB-DEBUG:*DEBUG-PRINT-VARIABLE-ALIST*
4041 has been moved to the SB-EXT package (temporarily re-exported from
4043 * minor incompatible change: SB-C::*COMPILER-ERROR-PRINT-FOO* variables
4044 are no longer supported: use SB-EXT:*COMPILER-PRINT-VARIABLE-ALIST*
4046 * fixed bug #351: better error-handlind and reporting for malformed
4048 * fixed bug #350: bignum-printing is now more memory-efficient,
4049 allowing printing of very large bignums, eg. (expt 2 10000000).
4050 (reported by Bruno Haible)
4051 * fixed bug #302: better primitive-type selection for intersection
4053 * fixed bug #308: non-graphic characters now all have names, as
4054 required. (reported by Bruno Haible)
4055 * bug fix: redefining a class with different superclasses now correctly
4056 removes it from the direct-subclasses of its previous superclasses.
4057 (reported by David Morse)
4058 * bug fix: (SETF FIND-CLASS) using a FORWARD-REFERENCED-CLASS as the
4059 new value now works. (reported by Bruno Haible)
4060 * bug fix: correct canonicalization of multiple non-standard slot
4061 options in DEFCLASS as per AMOP 5.4.2. (reported by Bruno Haible)
4062 * bug fix: SB-MOP:CLASS-PROTOTYPE now signals an error if the class
4063 is not yet finalized, as required by AMOP. (reported by Bruno Haible)
4064 * bug fix: SB-MOP:ALLOCATE-INSTANCE method for instances of BUILT-IN-CLASS
4065 now exists, an signals an error.
4066 * bug fix: duplicate LOOP variable bindings now signal PROGRAM-ERROR
4067 during macroexpansion for non-iteration variables as well. (reported
4068 by Bruno Haible for CMUCL)
4069 * bug fix: Cyclic structures and unprintable objects in compiler
4070 messages no longer cause errors. (reported by Bruno Haible)
4071 * bug fix: READ, READ-PRESERVING-WHITESPACE, READ-DELIMITED-LIST,
4072 and READ-FROM-STRING all now return a primary value of NIL if
4073 *READ-SUPPRESS* is true. (reported by Bruno Haible for CMUCL)
4074 * bug fix: Default value of EOF-ERROR-P in READ-FROM-STRING is true.
4075 (reported by Bruno Haible for CMUCL)
4076 * bug fix: ERROR now signals a TYPE-ERROR if the arguments to ERROR
4077 do not designate a condition. (reported by Bruno Haible for
4079 * bug fix: UNINTERN, USE-PACKAGE, IMPORT and EXPORT all signal an
4080 SB-EXT:NAME-CONFLICT condition (subtype of PACKAGE-ERROR) in the
4081 name conflict situations in CLHS 11.1.1.2.5, and provide a restart
4082 permitting resolution in favour of any of the conflicting symbols.
4083 (reported by Bruno Haible for CMUCL)
4084 * bug fix: EQUAL compiler optimizations is less aggressive on
4085 strings which can potentially compare true despite having distinct
4086 specialized array element types.
4087 * bug fix: unit enumerations can be defined without dividing by
4088 zero. (thanks to Vincent Arkesteijn)
4089 * FORMAT compile-time argument count checking has been enhanced.
4090 (report from Bruno Haible for CMUCL)
4091 * a partial workaround for the bug 262: the compiler does not try to
4092 inline-expand a local function doing RETURN-FROM from a deleted
4093 BLOCK. (thanks to Peter Denno for the bug report and to David
4094 Wragg for the simple test case)
4095 * fixed some bugs revealed by Paul Dietz' test suite:
4096 ** RENAME-PACKAGE allows all package designators as new package
4098 ** constraint propagation and lambda variable substitution are
4099 more cautious in dealing with partially deleted code.
4100 ** compiler sometimes lost reoptimization passes.
4101 ** CERROR, given a condition as condition designator, passes its
4102 remaining arguments to the continue format control without
4104 ** Case-altering FORMAT directives work correctly on non-ASCII
4106 ** The REAL type specifier handles bounds outside the floating
4107 point ranges without signalling FLOATING-POINT-OVERFLOW.
4108 ** Functions with IR1-transformations can create intercomponent
4109 references to global functions.
4110 ** NIL parameter to the FORMAT directive ~^ means `unsupplied
4112 ** FORMAT ~R treats a nil value for its first parameter correctly.
4114 changes in sbcl-0.8.16 relative to sbcl-0.8.15:
4115 * enhancement: saving cores with foreign code loaded is now
4116 supported on x86/NetBSD and sparc/Linux in addition to the previously
4117 supported platforms.
4118 * bug fix: on some platforms repeated installations caused multiple
4119 copies of HTML documentation to be installed -- should not happen
4120 any more. (reported by Stefan Scholl)
4121 * bug fix: parsing self-recursive alien record types multiple times
4122 no longer causes infinite recursion. (reported by Thomas F. Burdick,
4123 original patch by Helmut Eller for CMUCL)
4124 * bug fix: stack-exhaustion detection works now on NetBSD as well.
4125 (thanks to Richard Kreuter)
4126 * bug fix: defining classes whose accessors are methods on existing
4127 generic functions in other (locked) packages no longer signals
4128 bogus package lock violations. (reported by François-René Rideau)
4129 * bug fix: special variables as DEFMETHOD parameters no longer have
4130 associated bogus type declarations. (reported by David Wragg and
4132 * bug fix: read-write consistency on streams of element-type
4133 (SIGNED-BYTE N) for N > 32. (reported by Bruno Haible for CMUCL)
4134 * bug fix: redefiniton of the only method of a generic function with
4135 no DEFGENERIC no longer emits a full WARNING. In addition,
4136 redefinition of generic functions with no DEFGENERIC to an
4137 incompatible lambda list now signals an error. (thanks to Zach
4139 * bug fix: DEFGENERIC now works even when there's a function of the
4140 same name in an enclosing lexical environment. (thanks to Zach
4142 * fixed compiler failure, caused by instrumenting code during
4143 IR1-optimization. (Debian bug report #273606 by Gabor Melis)
4144 * optimization: added loop analysis and improved register allocation
4145 * fixed some bugs revealed by Paul Dietz' test suite:
4146 ** POSITION on displaced vectors with non-zero displacement
4147 returns the right answer.
4148 ** (SIMPLE-STRING) is a valid type specifier for sequence
4150 ** *PRINT-LEVEL* handling for slotless structures is pedantically
4152 ** PPRINT-INDENT accepts a request for an indentation of any REAL.
4153 ** PPRINT-TAB (and the FORMAT ~T directive) now indent by the
4155 ** The justification version of the FORMAT ~< directive treats
4156 non-zero minpad parameter correctly.
4158 changes in sbcl-0.8.15 relative to sbcl-0.8.14:
4159 * incompatible change: SB-INT:*BEFORE-SAVE-INITIALIZATIONS* and
4160 SB-INT:*AFTER-SAVE-INITIALIZATIONS* have been renamed
4161 SB-EXT:*SAVE-HOOKS* and SB-EXT:*INIT-HOOKS*, and are now part of
4162 the supported interface.
4163 * new feature: Single-stepping of code compiled with DEBUG 2 or
4164 higher and (> DEBUG (MAX SPACE SPEED)) is now possible.
4165 * new feature: saving cores with foreign code loaded is now
4166 supported on x86/FreeBSD, x86/Linux, and sparc/SunOS. (based on
4167 Timothy Moore's work for CMUCL)
4168 * bug fix: DEFTYPE lambda-list parsing now binds unsupplied keyword
4169 parameters to * instead of NIL if no initform is supplied.
4170 (reported by Johan Bockgaard)
4171 * bug fix: DEFINE-COMPILER-MACRO lambda-list parsing now binds
4172 correctly when FUNCALL appears as the car of the form. Note:
4173 despite this FUNCALL forms are not currently subject to
4174 compiler-macro expansion. (port of Raymond Toy's fix for the
4175 same from CMUCL, reported by Johan Bockgaard)
4176 * bug fix: FOR ... ON ... -clauses in LOOP now work on dotted lists
4177 (thanks for Teemu Kalvas)
4178 * bug fix: in FORMAT ~^ inside ~:{ now correctly steps to the next
4179 case instead of terminating the iteration (thanks for Julian
4180 Squires, Sean Champ and Raymond Toy)
4181 * bug fix: incorrect expansion of defgeneric that caused a style
4182 warning. (thanks for Zach Beane)
4183 * bug fix: slot accessor effective method computation works properly
4184 for classes with multiple non-standard applicable methods on
4185 SB-MOP:SLOT-VALUE-USING-CLASS. (reported by Ralf Mattes)
4186 * on x86 compiler supports stack allocation of results of LIST and
4187 LIST*, bound to variables, declared DYNAMIC-EXTENT. (based on
4188 CMUCL implementation by Gerd Moellmann)
4189 * fixed some bugs revealed by Paul Dietz' test suite:
4190 ** FORMAT strings with both the ~<~:;~> form of the justification
4191 directive and pretty-printing directives cause an error.
4193 changes in sbcl-0.8.14 relative to sbcl-0.8.13:
4194 * incompatible change: the internal functions
4195 SB-KERNEL:32BIT-LOGICAL-FOO, intended for providing efficient
4196 logical operations on (UNSIGNED-BYTE 32) values, have been renamed
4197 to SB-KERNEL:WORD-LOGICAL-FOO. Modular arithmetic should be used
4198 instead of the old functions.
4199 * new feature: on platforms where "dladdr" is available foreign
4200 function names now appear in backtraces. (based on Helmut Eller's
4202 * documentation: documentation for SB-BSD-SOCKETS, SB-GRAY,
4203 SB-SIMPLE-STREAMS, and SB-PROFILE have been integrated into the user
4205 * documentation: ASDF manual is now distributed with SBCL.
4206 * bug fix: SBCL can now load its contributed modules with REQUIRE
4207 even if the system-provided entries have been removed from
4208 ASDF:*CENTRAL-REGISTRY*. Infinite recursion in REQUIRE is also
4210 * bug fix: backtraces involving undefined functions or assembly
4211 routines are more informative. (thanks to Brian Downing)
4212 * bug fix: mutually referent alien structures now work correctly.
4213 (reported by Rick Taube)
4214 * bug fix: structures defined by WITH-ALIEN can be referred to
4215 within other definitions in the same WITH-ALIEN.
4216 * bug fix: division operators (MOD, TRUNCATE and the like) with
4217 constant zero divisors and integer dividends no longer generate
4219 * bug fix: provide default methods for INPUT-STREAM-P and
4220 OUTPUT-STREAM-P specialized on SB-GRAY:FUNDAMENTAL-STREAM.
4221 * bug fix: improve the detection and resolution of MOP metacycles
4222 (where effective method computation depends on the generic function
4223 having its effective method computed). (reported by Bruno Haible)
4224 * bug fix: pass the right initargs to :BEFORE or :AFTER methods on
4225 SHARED-INITIALIZE or INITIALIZE-INSTANCE in optimized
4226 MAKE-INSTANCE constructors. (reported by Axel Schairer for cmucl)
4227 * bug fix: pathnames with relative directory components can be
4228 represented relative to default pathnames.
4229 * optimization: in taking the GCD of bignums, reduce the two bignums
4230 to approximately the same size (using Euclid's algorithm) before
4231 applying the more sophisticated binary GCD. (thanks to Juho
4233 * optimization: COUNT on bitvectors now operates word-at-a-time.
4234 * optimization: ASH with a positive, but not necessarily constant,
4235 (leftwards) shift, when in a modular context, is compiled to a
4237 * fixed some bugs revealed by Paul Dietz' test suite:
4238 ** FORMAT variable parameters ("~V<char>") are defaulted properly
4239 if the corresponding argument is NIL.
4240 ** FORMAT directives accepting a minpad parameter treat negative
4242 ** literal commas as character parameters to FORMAT directives are
4244 ** literal spaces directly after ~<Newline> directives within a
4245 format-logical-block (~:< ~@:>) do not induce :FILL-style
4246 conditional newlines.
4247 ** PRINT-UNREADABLE-OBJECT inserts spaces as specified (and only
4248 as specified: it no longer includes conditional newlines).
4249 ** PRINC-TO-STRING binds *PRINT-READABLY* to NIL (as well as
4251 ** PPRINT-LOGICAL-BLOCK signals a TYPE-ERROR if its :PREFIX or
4252 :PER-LINE-PREFIX argument does not evaluate to a string.
4254 changes in sbcl-0.8.13 relative to sbcl-0.8.12:
4255 * new feature: SB-PACKAGE-LOCKS. See the "Package Locks" section of
4256 the manual for details; for now, package locks can be disabled by
4257 removing :SB-PACKAGE-LOCKS in customize-target-features.lisp, but
4258 if no major problems are found then it is likely that they will be
4259 compiled in unconditionally.
4260 * major incompatible change: LOAD-FOREIGN and LOAD-1-FOREIGN are now
4261 unsupported operators on all platforms. To load a shared library
4262 into SBCL, use SB-ALIEN:LOAD-SHARED-OBJECT. To load a non-shared
4263 object file, link it into a shared library outside of SBCL and
4264 load it using SB-ALIEN:LOAD-SHARED-OBJECT. (incidentally fixes
4266 * bug workaround: ROOM T and the GC were not working together
4267 reliably, because invariants expected by the SB!VM:INSTANCE-USAGE
4268 reporting facility aren't preserved. That reporting has been
4269 disabled, so now until and unless someone figures out how to make it
4270 work reliably with the current GC, (ROOM T) is equivalent to (ROOM).
4271 * minor incompatible change: as threatened around sbcl-0.8.0, the
4272 home package of MOP-related symbols is now SB-MOP, not SB-PCL.
4273 The symbols are also exported from SB-PCL for backwards
4274 compatibility, but more so than before SB-PCL should be treated as
4275 an implementation-internal package.
4276 * fasl format changed: SBCL 0.8.13 fasls are incompatible with those
4278 * the SB-SPROF contrib now works on (most) non-x86 architectures.
4279 It is known as of this release not to work on the Alpha, however.
4280 * fixed bug #167: errors signalled due to illegal syntax in method
4281 bodies are now more legible.
4282 * fixed bug #338: instances of EQL-SPECIFIER are now valid type
4283 designators and can hence be used with TYPEP.
4284 * fixed bug #333: CHECK-TYPE now ensures that the type error
4285 signalled, if any, has the right object to be accessed by
4286 TYPE-ERROR-DATUM. (reported by Tony Martinez)
4287 * fixed bug #340: SETF of VALUES obeys the specification in ANSI
4288 5.1.2.3 for multiple-value place subforms. (reported by Kalle
4290 * fixed bug #334: programmatic addition of slots using specialized
4291 methods on SB-MOP:COMPUTE-SLOTS works for :ALLOCATION :INSTANCE
4292 and :ALLOCATION :CLASS slots.
4293 * fixed bug #269: SCALE-FLOAT scales floats by any integer, not just
4294 float exponents. (rereported by Peter Seibel)
4295 * fixed a bug: #\Space (and other whitespace characters) are no
4296 longer considered to be macro characters in standard syntax by
4297 GET-MACRO-CHARACTER.
4298 * fixed bug: initialization of condition class metaobjects no longer
4299 causes an instance of the condition to be created. (reported by
4301 * fixed bug: it is now possible to have slots such that
4302 SB-MOP:SLOT-DEFINITION-ALLOCATION of the effective slot
4303 description is neither :INSTANCE nor :CLASS.
4304 * fixed bug: the ctor optimization of MAKE-INSTANCE now respects
4305 user-defined methods on SLOT-BOUNDP-USING-CLASS and (SETF
4306 SLOT-VALUE-USING-CLASS), and no longer causes errors with
4307 non-standard SLOT-DEFINITION-ALLOCATION values.
4308 * fixed bugs: various race conditions handling exiting threads.
4309 CL-PPCRE's thread torture test now passes.
4310 * fixed arguably-a-bug: GC time proportional to number of threads in
4311 system even when most of them are idle
4312 * optimization: improved performance of BIT and SBIT on bit-vectors.
4313 * .fasl file incompatibility: The fasl file version number has
4314 been incremented because of changes associated with package locks.
4316 changes in sbcl-0.8.12 relative to sbcl-0.8.11:
4317 * minor incompatible change: the system no longer provides
4318 optimization hints (conditions which are TYPEP
4319 SB-EXT:COMPILER-NOTE) for conforming code in default compilation
4320 mode; these hints are still emitted when higher SPEED optimization
4322 * new contrib module: a sampling profiler (profiling by statistical
4323 sampling, rather than by instrumenting functions) is available as
4324 the SB-SPROF contrib. (thanks to Gerd Moellmann and Juho Snellman)
4325 * the behaviour of the standard function ED is now customizeable by
4326 third parties through a hook variable: see ED's documentation
4327 string for information on the protocol.
4328 * the compiler no longer emits efficiency notes for (FUNCALL X)
4329 when the type of X is uncertain under default optimization
4331 * fixed bug 276: mutating a binding of a specialized parameter to a
4332 method to something that is not TYPEP the specializer is now
4334 * fixed bugs 45d and 118: DOUBLE-FLOAT[-NEGATIVE]-EPSILON now
4335 exhibit the required behaviour on the x86 platform. (thanks to
4336 Peter van Eynde, Eric Marsden and Bruno Haible)
4337 * fixed bug 335: ATANH now computes the inverse hyperbolic tangent
4338 even for difficult arguments. (reported by Peter Graves)
4339 * fixed bug 141a: the backquote printer now descends quoted
4341 * fixed another bug in backquote printing: no more destructive
4342 modification of the form's list structure. (reported by Brian
4344 * fixed bug in INTERRUPT-THREAD: pin the function, so that it cannot
4345 move between its address being taken and the call to
4346 interrupt_thread, fixing a crashing race condition.
4347 * the SB-POSIX contrib implementation has been adjusted so that it
4348 no longer exhibits ridiculously poor performance when constructing
4349 instances corresponding to C structs.
4351 changes in sbcl-0.8.11 relative to sbcl-0.8.10:
4352 * minor incompatible change: the sb-grovel contrib now treats C
4353 structures as alien (in the sense of SB-ALIEN) objects rather than
4354 as undistinguished (simple-array (unsigned-byte 8) (*))s. This
4355 has implications for memory management of client code
4356 (sb-grovel-returned objects must now be manually managed) and for
4357 type safety (alien objects now have full types).
4358 * new feature: the SB-EXT:MUFFLE-CONDITIONS declaration should be
4359 used to control emission of compiler diagnostics, rather than the
4360 SB-EXT:INHIBIT-WARNINGS OPTIMIZE quality. See the manual for
4361 documentation on this feature. The SB-EXT:INHIBIT-WARNINGS
4362 quality should be considered deprecated.
4363 * install.sh now installs the user manual as well
4364 * (not quite a new documentable feature, but worth considering in
4365 the light of the new SB-EXT:MUFFLE-CONDITIONS declaration): the
4366 beginnings of a semantically meaningful condition hierarchy is
4367 under development, for use in SB-EXT:MUFFLE-CONDITIONS and by
4369 * fixed bug: PARSE-NAMESTRING now accepts any valid pathaname
4370 designator as the defaults argument.
4371 * fixed bug: Displaced arrays whose displaced-to array has become
4372 too small now cause ARRAY-DIMENSION to signal an error, providing
4373 for safer bounds-checking. (reported by Bruno Haible)
4374 * fixed bug: DEFCLASS slot definitions with identical :READER and
4375 :WRITER names now signal a reasonable error. (reported by Thomas
4377 * fixed bug: CLOSE :ABORT T on appending stream no longer causes
4379 * fixed bug: Invalid slot specification errors now print correctly.
4380 (thanks to Zach Beane)
4381 * fixed bug 320: Shared to local slot value transfers in class
4382 redefinitions now happen corrently from superclasses as
4383 well. (reported by Bruno Haible)
4384 * fixed bug 316: SHIFTF now accepts VALUES forms. (reported by Bruno
4386 * fixed bug 322: DEFSTRUCT :TYPE LIST type predicates now handle
4387 improper lists correctly. (reported by Bruno Haible)
4388 * fixed bug 313: source-transform for <fun-name> was erroneously
4389 applied to a call of a value of a variable with name <fun-name>.
4390 (reported by Antonio Menezes Leitao)
4391 * fixed bug 307: The obsolete instance protocol ensures that
4392 subclasses are properly obsoleted. (thanks to Nikodemus Siivola)
4393 * fixed bug 298, revealed by Paul F. Dietz' test suite: SBCL can
4394 remove dead unknown-values globs from the middle of the stack.
4395 * added a new restart to *BREAK-ON-SIGNALS* handling to make it
4396 easier to resume long computations after using *BREAK-ON-SIGNALS*
4397 to diagnose and fix failures. (thanks to Nikodemus Siivola)
4398 * fixed bug reported by PFD in lisppaste #747 (and Bruno Haible from
4399 CLISP test suite): WRITE-TO-STRING is not constant-foldable.
4400 * fixed bugs in COMPLEX type specifier: UPGRADED-COMPLEX-PART-TYPE
4401 is now consistent with (COMPLEX <x>); bugs in treatment of COMPLEX
4402 MEMBER and UNION types have likewise been fixed. (thanks to Bruno
4404 * fixed a (fairly theoretical) bug in string printing: if
4405 *PRINT-READABLY* is true, signal PRINT-NOT-READABLE if the string
4406 does not have array-element-type equal to the most general string
4408 * fixed bug: SET-PPRINT-DISPATCH does not immediately resolve
4409 function name. (thanks to Nikodemus Siivola)
4410 * fixed bug: compile-time format string checker failed on
4411 non-closed ~{. (reported by Thomas F Burdick)
4412 * fixed bug: as reported by Kalle Olavi Niemitalo on #lisp IRC,
4413 don't warn on legal loop code involving more than one aggregate
4414 boolean. (thanks to Nikodemus Siivola)
4415 * fixed bug: as reported by Peter Graves on #lisp IRC, passing a NIL
4416 in keyword position to MAKE-PACKAGE was not being reported as
4418 * fixed bug: as reported by Juan Ripoll on cmucl-imp,
4419 MULTIPLE-VALUE-BIND should be able to lexically bind lambda list
4421 * fixed bugs 280 and 312: the checking for multiple definitions in a
4422 file is less likely to become confused by uses of inline
4424 * fixed bug: the #S reader macro performs the keyword coercion
4425 specified for slot names. (reported by Kalle Niemitalo)
4426 * fixed bug: lambda lists may contain symbols whose names start with
4427 & but are not lambda-list-keywords; their occurrence triggers a
4429 * fixed bug 321: define-method-combination argument lambda lists do
4430 not cause invalid code to be generated when &optional or &aux
4431 variables have default values. (reported by Bruno Haible)
4432 * fixed bug 327: system subclasses of STRUCTURE-OBJECT or CONDITION
4433 have CLOS classes; this appears also to have fixed reported
4434 instability in stack exhaustion detection.
4435 * fixed bug: the CONTROL-ERROR from ABORT, CONTINUE and
4436 MUFFLE-WARNING when no associated restart is present is now
4438 * optimization: rearranged the expansion of various defining macros
4439 so that each expands into only one top-level form in a
4440 :LOAD-TOPLEVEL context; this appears to decrease fasl sizes by
4442 * optimization: used a previously little-used slot in symbols to
4443 cache SXHASH values, yielding a 5-10% compiler speedup. (thanks
4445 * fixed some bugs revealed by Paul Dietz' test suite:
4446 ** MAKE-INSTANCES-OBSOLETE returns the class name when called with
4448 ** Fixed an optimization bug related to inheritance of initforms
4449 from local to shared slots.
4450 ** FILE-POSITION works as specified on BROADCAST-STREAMs.
4451 ** CAST optimizer forgot to flush argument derived type.
4452 ** print/read consistency on floats is now orders of magnitude
4453 more likely. (thanks also to Bruno Haible for a similar report
4455 ** removed stack cleaning in the cleanup part of UNWIND-PROTECT.
4456 ** IMAGPART is specified (infelicitously) to return (* 0 <thing>)
4457 for objects of type REAL. Make it so.
4458 ** SXHASH is specified (infelicitously) to respect similarity,
4459 which means that (SXHASH 0.0) must equal (SXHASH -0.0). Make
4460 it so. (thanks to Markus Ziegler)
4461 ** on the Alpha, the compiler succeeds in compiling functions
4462 returning a known number of arguments greater than 63.
4463 ** fixed handling of invalid NIL arguments in keyword position
4465 ** fixed non-pretty printing of arrays with *PRINT-RADIX* being
4467 ** provided a readably-printable representation for RANDOM-STATE
4469 ** ensured that pathnames, where they have a namestring, always
4470 print using #P"..." syntax.
4472 changes in sbcl-0.8.10 relative to sbcl-0.8.9:
4473 * Support for the forthcoming 2.0 version of the NetBSD kernel
4474 running on x86 hardware has been added. (thanks to Perry
4475 E. Metzger most immediately, and others for their past work)
4476 * SBCL now runs on OpenBSD 3.4. (Thanks to Scott Parish; 3.4 is the
4477 current release version; SBCL's OpenBSD support had been broken
4478 since about the time of OpenBSD's switch to ELF binary format.)
4479 * [placeholder for DX summary]
4480 ** user code with &REST lists declared dynamic-extent, under high
4481 speed or space and low safety and debug optimization policy.
4482 * The manual has been converted to Texinfo format and the debugger
4483 chapter from the cmucl manual has been added.
4484 * A facility has been added to extract documentation strings from
4485 sbcl and store them as Texinfo-formatted snippets for inclusion in
4486 the manual (via Texinfo's @include directive)
4487 * bug fix: compiler emitted division in optimized DEREF. (thanks for
4488 the test case to Dave Roberts)
4489 * bug fix: multidimensional simple arrays loaded from FASLs had fill
4490 pointers. (reported by Sean Ross)
4491 * bug fix: PROFILE output is printed nicely even for large numerical
4492 values. (thanks to Zach Beane)
4493 * bug fix: streams with element-type (SIGNED-BYTE <N>) for <N>
4494 greater than 32 handle EOF correctly.
4495 * bug fix: on X86 an immediate argument of the IMUL instruction is
4496 correctly printed in disassembly. (thanks to Lutz Euler)
4497 * bug fix: class slots in redefined classes preserve their old
4498 values. (thanks to Bruno Haible and Nikodemus Siivola)
4499 * bug fix: compilation of funcalls of CXX+R (e.g. CDDR) now
4500 succeeds. (reported by Marco Baringer)
4501 * fixed some bugs revealed by Paul Dietz' test suite:
4502 ** READ-SEQUENCE now works on ECHO-STREAMs.
4503 ** RATIONALIZE works more according to its specification. (thanks
4506 changes in sbcl-0.8.9 relative to sbcl-0.8.8:
4507 * deprecation of old extension: *DEBUG-PRINT-LEVEL* and
4508 *DEBUG-PRINT-LENGTH* are now deprecated in favor of the new, more
4509 general SB-DEBUG:*DEBUG-PRINT-VARIABLE-ALIST* mechanism. (This
4510 should matter to you only if you rebind the printer control
4511 variables and then find you want different bindings in the
4512 debugger than in the ordinary execution of your program.)
4513 * The runtime build system has been tweaked to support building
4514 (on SPARC/SunOS) using a C compiler which invokes Sun's own
4515 assembler and linker. (thanks to Nikodemus Siivola)
4516 * Unbound, undefined, undeclared variables now trigger full
4517 WARNINGs, not just STYLE-WARNINGs, on the assumption that this is
4518 more often programmer error than deliberate exploitation of undefined
4520 * optimization: the hash algorithm for strings has changed to one
4521 that is less vulnerable to spurious collisions. (thanks to Juho
4523 * optimization: VECTOR-POP, VECTOR-PUSH-EXTEND and REPLACE do less
4524 needless bounds checking. (thanks to Juho Snellman)
4525 * optimization: implemented multiplication as a modular
4526 (UNSIGNED-BYTE 32) operation on the PPC backend.
4527 * fixed some bugs revealed by Paul Dietz' test suite:
4528 ** ADJUST-ARRAY now copies the datum in a zero rank array if
4530 ** ADJUST-ARRAY no longer adjusts non-adjustable arrays.
4531 ** MAKE-STRING-INPUT-STREAM accepts NIL as a value for :END.
4532 ** MAKE-STRING-INPUT-STREAM functions correctly for strings with
4534 ** CLEAR-INPUT accepts NIL and T for its (optional) stream
4536 ** Ratios can now be printed correctly with *PRINT-BASE* bound to
4538 ** ECHO-STREAMs no longer attempt to echo the end of file value to
4539 their output stream on EOF from read.
4540 ** CONCATENATED-STREAM-STREAMS discards constituent streams which
4541 have been read to end-of-file.
4542 ** CLOSE works as expected on the null CONCATENATED-STREAM, and on
4544 ** Printing symbols with *PRINT-CASE* :CAPITALIZE respects the
4545 description of determination of which consecutive characters
4547 ** Printing the "Space" character with escaping on now yields "#\\ ",
4548 rather than "#\\Space", as mandated by ANSI 22.1.3.2.
4549 ** Reading floating-point numbers with *READ-BASE* set to a number
4550 less than 10 works correctly.
4551 ** Reading floating-point numbers with *READ-BASE* set to a number
4552 more than 10 works correctly.
4553 ** Printing with *PRINT-READABLY* targets the standard readtable, not
4554 the readtable currently in effect.
4556 changes in sbcl-0.8.8 relative to sbcl-0.8.7:
4557 * minor incompatible change: parsing of namestrings on a physical
4558 (Unix) host has changed; numbers after the final #\. in a
4559 namestring are no longer interpreted as a version field. This is
4560 intented to be largely invisible to the user, except that the
4561 meaning of the namestring "*.*.*" has changed: it now refers to a
4562 pathname with :TYPE :WILD :NAME #<pattern "*.*">. This namestring
4563 should usually be replaced by
4564 (make-pathname :name :wild :type :wild :version :wild)
4565 with the added benefit that this is more likely to be portable.
4566 As a consequence of this change, the :IF-EXISTS :NEW-VERSION
4567 option to OPEN now signals an error if the file being opened
4568 exists; this may have an impact on existing code.
4569 * fixed bug 190: RUN-PROGRAM should now work properly, respecting
4570 signals received, on the PowerPC platforms (both Linux and
4571 Darwin). (thanks to Pierre Mai for pointing out the location of
4573 * several fixes on OS X: The system now builds and runs cleanly on
4574 Panther (10.3), and works around sigreturn bug (no more SIGFPEs).
4575 (thanks to Brian Mastenbrook)
4576 * bug fix: DECODE-UNIVERSAL-TIME now accepts timezone arguments with
4577 second-resolution: integer multiples of 1/3600 between -24 and 24.
4578 (thanks to Vincent Arkesteijn)
4579 * bug fix: functions =, /=, <, <=, >, >= did not check the argument
4580 type when called with 1 argument; PEEK-CHAR checked type of
4581 PEEK-TYPE only after having read first character from a
4582 stream. (reported by Peter Graves)
4583 * bug fix: the garbage collector now has much better locality
4584 behaviour, and in particular no longer treats all memory as being
4585 exhausted when many small objects point to each other in a deeply
4587 * bug fix: arrays specialized on (UNSIGNED-BYTE 15) are now
4588 recognized as being TYPEP their class.
4589 * bug fix: the PUSHNEW documentation string has been corrected.
4590 (thanks to Vincent Arkesteijn)
4591 * bug fix: defaulting of the value for the last of an atypically
4592 large number of multiple values being bound was not being
4593 performed correctly on the Alpha or PPC platforms
4594 * optimization: implemented multiplication as a modular
4595 (UNSIGNED-BYTE 32) operation on the x86 backend.
4596 * optimization: SEARCH on simple-base-strings can now be open-coded.
4597 (see also contrib/compiler-extras.lisp for inspiration for
4598 teaching the compiler about the Boyer-Moore algorithm).
4599 * value, returned by MAX (and MIN) called with several EQUALP, but
4600 not EQL, arguments now does not depend on compiler settings.
4601 * fixed some bugs revealed by Paul Dietz' test suite:
4602 ** in stack analysis liveness information is propagated from
4603 non-local entry points.
4604 ** pathwise CAST removing failed when the CAST node did not start
4606 ** INPUT-STREAM-P, OUTPUT-STREAM-P, STREAM-ELEMENT-TYPE and
4607 OPEN-STREAM-P signal a TYPE-ERROR if their argument is not a
4609 ** LOAD-LOGICAL-PATHNAME-TRANSLATIONS returns NIL if the logical
4610 host is already defined.
4611 ** RENAME-FILE works on streams instead of signalling an internal
4613 ** PEEK-CHAR uses the current readtable when determining whether
4614 or not a character is whitespace.
4615 ** MERGE-PATHNAMES handles the case when the pathname does not
4616 specify a name while the default-pathname specifies a version.
4617 ** Pathnames now stand a better chance of respecting print/read
4619 ** Attempting to use standardized file system operators with a
4620 pathname with invalid :DIRECTORY components signals a
4622 ** OPEN :DIRECTION :IO no longer fails to work on non-existent
4624 ** DIRECTORY on logical pathnames is more correct.
4625 ** CLEAR-INPUT, CLEAR-OUTPUT, FINISH-OUTPUT and FORCE-OUTPUT
4626 signal a TYPE-ERROR if their argument is not a stream.
4627 ** READ-BYTE and WRITE-BYTE signal a TYPE-ERROR if their stream
4628 designator argument does not designate a stream.
4629 ** OPEN-STREAM-P and INPUT-STREAM-P on synonym streams work by
4630 examining the synonym.
4631 ** STREAM-ELEMENT-TYPE and FRESH-LINE on broadcast-streams now
4633 ** OPEN and WITH-OPEN-STREAM allow opening streams with
4634 element-type larger than ([UN]SIGNED-BYTE 32).
4636 changes in sbcl-0.8.7 relative to sbcl-0.8.6:
4637 * When built with the :SB-FUTEX feature, threaded builds now take
4638 advantage of the "fast userspace mutex" facility in Linux kernel 2.6
4639 for faster/more reliable mutex and condition variable support.
4640 * Incompatible change (but one you probably shouldn't have been using
4641 anyway): the interface and code for arbitrating between multiple
4642 threads in the same user session has been redesigned.
4643 * bug fix: GET-SETF-EXPANSION no longer throws an internal type
4644 error when called without an explicit environment argument.
4645 (thanks to Nikodemus Siivola)
4646 * bug fix: buffered :DIRECTION :IO streams are less likely to become
4647 confused about their position. (thanks to Adam Warner and Gerd
4649 * bug fix: Pretty printing backquoted forms with unquotations in the
4650 argument list position of various code constructs such as LAMBDA
4651 now works correctly. (reported by Paul Dietz)
4652 * bug fix: Pretty printing unquotations no longer loses all
4653 stream position information.
4654 * optimization: performance of string output streams is now less
4655 poor for multiple small sequence writes.
4656 * optimization: performance of CSUBTYPEP in the presence of complex
4657 expressions involving CONS and NOT many times has been improved.
4658 (reported by Paul Dietz)
4659 * ASDF-INSTALL bug fix: now parses *PROXY* properly. (thanks to
4661 * SB-SIMPLE-STREAMS enhancement: simple-streams can now be used as
4662 streams for the REPL, for the debugger, and so on. (thanks to
4664 * DEFINE-CODITION is more efficient. (thanks to Brian Mastenbrook)
4665 * fixed some bugs revealed by Paul Dietz' test suite:
4666 ** the value of the :REHASH-THRESHOLD argument to MAKE-HASH-TABLE
4667 is ignored if it is too small, rather than propagating through
4668 to cause DIVIDE-BY-ZERO or FLOATING-POINT-OVERFLOW errors.
4669 ** extremely complex negations of CONS types were not being
4670 sufficiently canonicalized, leading to inconsistencies in
4672 ** VALUES tranformer lost derived type.
4674 changes in sbcl-0.8.6 relative to sbcl-0.8.5:
4675 * fixed a bootstrapping bug: the build process no longer assumes
4676 that the various BOOLE-related constants have the same value in
4677 host and target lisps. (noted by Paul Dietz' test suite on an
4678 SBCL binary built from CLISP)
4679 * The system can now be dynamically linked on the MIPS platform,
4680 which enables dynamic loading of foreign code from Lisp. (thanks
4681 to Ralf Baechle for discussions on the MIPS ABI)
4682 * The system now records debugging information for its own source
4683 files in a filesystem-position-independent manner, relative to
4684 the "SYS" logical host.
4685 * fixed a compiler bug: MV-LET convertion did not check references
4686 to the "max args" entry point. (reported by Brian Downing)
4687 * tweaked disassembly notes to be less confident about proclaiming
4688 some instruction as an LRA. (thanks to Brian Downing)
4689 * contrib update: SB-ACLREPL is now threadsafe; multiple listeners
4690 now each have their own history, command character, and other
4691 characteristics. (thanks to David Lichteblau)
4692 * fixed some bugs revealed by Paul Dietz' test suite:
4693 ** compiler failure in compiling LOGAND expressions including a
4695 ** Implementation of ASH-MOD32 on X86 and PPC did not work for the
4696 shift greater than 32.
4697 ** FLUSH-DEST did not mark blocks for type check regeneration.
4698 ** HANDLER-CASE failed to accept declarations in handler clauses
4699 in some circumstances.
4701 changes in sbcl-0.8.5 relative to sbcl-0.8.4:
4702 * New code in contrib/sb-introspect (still probably not entirely
4703 stable yet) provides some support for smart Lisp development
4704 environments like SLIME.
4705 * The conditions signalled for errors occurring when loading .fasl
4706 files have been systematized (inheriting from SB-EXT:INVALID-FASL)
4707 in a way which should help ASDF recover gracefully.
4708 * The REQUIRE/PROVIDE behavior of *MODULE-PROVIDER-FUNCTIONS*
4709 stuff has been cleaned up. If you code contrib/ stuff, this might
4710 affect you, and you can look at contrib/README, contrib/STANDARDS,
4711 and/or the 0.8.4.27 diff to check.
4712 * In full calls the compiler now does not generate checks for declared
4713 argument types for all arguments.
4714 * various threading fixes
4715 ** and some experimental patches which didn't make it into
4716 the main tree for this release, but which are shipped in
4717 contrib/experimental-thread.patch as a possible fix for some
4718 failures (deadlock, spinning...) in GC-intensive multithreaded
4720 * fixed PPC build problem (source code incompatibility of different
4721 library versions): added offsetof() hackery which attempts to divine
4722 where glibc maintainers put uc_mcontext today
4723 * fixed bug 282: compiler does not trust type assertions while passing
4724 arguments to a full call.
4725 * fixed bug 261: compiler allows NIL or "no value" to be accepted for
4726 &OPTIONAL VALUES type parameter.
4727 * fix bug 214: algorithm for noting rejected templates is now more
4728 similar to that of template seletion. (also reported by rydis on
4730 * fixed bug 141b: printing backquoted information readably and prettily
4731 inserts a space where necessary.
4732 * bug fix: obviously wrong type specifiers such as (FIXNUM 1) or
4733 (CHARACTER 10) are now reported as errors, rather than propagated
4734 as unknown types. (reported by piso on #lisp)
4735 * bug fix: the :IF-EXISTS argument to OPEN now behaves correctly
4736 with values NIL and :ERROR. (thanks to Milan Zamazal)
4737 * fixed bug 191c: CLOS now does proper keyword argument checking as
4738 described in CLHS 7.6.5 and 7.6.5.1.
4739 * bug fix: LOOP forms using NIL as a for-as-arithmetic counter no
4740 longer raise an error; further, using a list as a for-as-arithmetic
4741 counter now raises a meaningful error.
4742 * fixed bug 213a: even fairly unreasonable CONS type specifiers are
4743 now understood by sequence creation functions such as MAKE-SEQUENCE
4745 * fixed bug 46k: READ-BYTE now signals an error when asked to read from
4746 a STRING-INPUT-STREAM.
4747 * compiler enhancement: SIGNUM is now better able to derive the type
4749 * type declarations inside WITH-SLOTS are checked. (reported by
4751 * fixed some bugs revealed by Paul Dietz' test suite:
4752 ** incorrect optimization of TRUNCATE for a positive first
4753 argument and negative second.
4754 ** compiler failure in let-convertion during flushing dead code.
4755 ** compiler failure while deriving type of TRUNCATE on an
4756 interval, containing 0.
4757 ** ASH of a negative bignum by a negative bignum count now returns
4759 ** intersection of CONS types now canonicalizes properly, fixing
4760 inconsistencies in SUBTYPEP.
4762 changes in sbcl-0.8.4 relative to sbcl-0.8.3:
4763 * incompatible change: The --disable-debugger command line
4764 option now clobbers the debugger at a more fundamental
4765 level, by redefining #'INVOKE-DEBUGGER instead of by
4766 rebinding *DEBUGGER-HOOK*. The main difference is that BREAK
4767 is specified by ANSI to ignore *DEBUGGER-HOOK* and
4768 INVOKE-DEBUGGER regardless. Under the old system, BREAK would
4769 enter the debugger REPL and then suffer recursive errors
4770 because *DEBUG-IO* is also messed up in --disable-debugger mode;
4771 while under the new system, BREAK in --disable-debugger mode
4772 terminates the system just as an unhandled error would.
4773 * fixed compiler performance when processing loops with a step >1;
4774 * bug fix: DOCUMENTATION now retrieves generic function
4775 documentation. Also, DOCUMENTATION and (SETF DOCUMENTATION)
4776 support has been systematized, and now supports the methods
4777 specified by ANSI, along with a default method and a method for
4778 slot documentation. (reported by Nathan Froyd)
4779 * bug fix: effective methods associated with a generic function are
4780 no longer cached over a change of that generic function's method
4781 combination. (reported by Andreas Fuchs)
4782 * bug fix: RUN-PROGRAM now does not fail if some element in $PATH
4783 names a non-existent directory. (thanks to Andreas Fuchs)
4784 * bug fix: ROUND and TRUNCATE could, under certain circumstances on
4785 the PPC platform, lead to stack corruption; this has been fixed.
4786 (reported by Rainer Joswig)
4787 * bug fix: ASH on an (UNSIGNED-BYTE 32) with a shift of -32 or lower
4788 no longer ever returns 1 instead of 0. (thanks to Lars Brinkhoff)
4789 * fixed bug 285: TRUNCATE on bignum arguments, and indeed bignum
4790 arithmetic in general, is now much more reliable on the PPC
4792 * bug fix: LOGCOUNT on (UNSIGNED-BYTE 64) objects on the Alpha
4793 platform now returns the right answer.
4794 * optimization: restored some effective method precomputation in
4795 CLOS (turned off by an ANSI fix in sbcl-0.8.3); the amount of
4796 precomputation is now tunable.
4797 * optimization: compiler-internal data structure use has been
4798 reviewed, and changes have been made that should improve the
4799 performance of the compiler by about 20%.
4800 * optimization: performance of FILL (and :INITIAL-ELEMENT) on
4801 simple-base-strings and simple-bit-vectors is improved.
4802 * optimization: the optimization of 32-bit logical and arithmetic
4803 functions introduced in version 0.8.3 on the x86 has been
4804 implemented on the mips, ppc and sparc platforms; an
4805 implementation of the same facility, but for 64-bit arithmetic,
4806 has been added for the alpha.
4807 * microoptimization: the compiler is better able to make use of the
4808 x86 LEA instruction for multiplication by constants.
4809 * bug fix: in some situations compiler did not report usage of
4810 generic arithmetic in (SPEED 3) policy.
4811 * bug 145b fix: compiler used wrong type specifier while converting
4812 MEMBER-types to numeric.
4813 * bug fix: COMPILE-FILE must bind *READTABLE*. (reported by Doug
4815 * bug fix: (SETF AREF) on byte-sized-element arrays with constant
4816 index argument now works properly on the Alpha platform.
4817 * bug fix: floating point exception treatment on the Alpha platform
4819 * bug fix: FILE-POSITION works much better on string input and
4820 output streams. (thanks to Nikodemus Siivola)
4821 * bug fix: many threading/garbage collection symptoms sorted.
4822 SB-THREAD:INTERRUPT-THREAD now safe to call on a thread that
4823 might be pseudo-atomic.
4824 * internal change: Stopping for GC is now done with signals not
4825 ptrace. GC is now done in whichever thread wanted it, instead of
4827 * bug fix: GC hooks (missing since 0.8) reinstated, so finalizers
4829 * bug fix: result form in DO is not contained in the implicit
4831 * incompatible change: ICR structure is changed; the value part of
4832 CONTINUATION is now called LVAR; corresponding functions are
4833 renamed (e.g. SB-C::CONTINUATION-TYPE has become SB-C::LVAR-TYPE).
4834 * added type deriver for ISQRT (thanks to Robert E. Brown).
4835 * bug fix: better support for loading from the command line when an
4836 initialization file sets (READTABLE-CASE *READTABLE*). (thanks
4838 * fixed some bugs revealed by Paul Dietz' test suite:
4839 ** the RETURN clause in LOOP is now equivalent to DO (RETURN ...).
4840 ** ROUND and FROUND now give the right answer when given very
4841 small float arguments.
4842 ** (FLOAT X) for X of type DOUBLE-FLOAT now returns X in all
4844 ** optimizer for (EXPT X 0) did not work for X not of type FLOAT.
4845 ** (GCD 0 <negative-integer>) returned <negative-integer>.
4846 ** LCM should return a non-negative integer.
4847 ** PARSE-INTEGER returned the index of a terminator instead of the
4848 upper bounding index of a substring in case :JUNK-ALLOWED NIL.
4849 ** PARSE-INTEGER returned an incorrect index being applied to a
4851 ** LCM with two arguments of 0 returns 0 rather than signalling
4853 ** unsigned addition of a 32-bit constant with the high bit set no
4854 longer causes an internal compiler error on the x86.
4855 ** LOGBITP accepts a non-negative bignum as its INDEX argument.
4856 ** compiler incorrectly derived types of DPB and DEPOSIT-FIELD
4857 with negative last argument.
4858 ** byte specifiers with zero size and position no longer cause
4859 an error during type derivation.
4860 ** bignum multiplication on the Alpha platform now returns the
4862 * porting: The system now builds on SuSE AMD64, although it still
4863 generates a 32-bit binary.
4864 * .fasl file incompatibility: The fasl file version number has
4865 been incremented (because of the changes to internal compiler
4866 data structures referred to above).
4868 changes in sbcl-0.8.3 relative to sbcl-0.8.2:
4869 * SBCL now builds and runs on MacOS X (version 10.2), or perhaps
4870 more accurately, on the Darwin kernel running on PowerPC hardware.
4871 (thanks to Brian Mastenbrook, Pierre Mai and Patrik Nordebo)
4872 * Compiler code deletion notes now signal a condition of type
4873 SB-EXT:CODE-DELETION-NOTE (a subtype of SB-EXT:COMPILER-NOTE) with
4874 an associated MUFFLE-WARNING restart.
4875 * The compiler now performs limited argument count validation of
4876 constant format strings in FORMAT, and where appropriate in ERROR,
4877 CERROR and WARN. (thanks to Gerd Moellmann)
4878 * New ASDF-INSTALL contrib can be used for automatic download and
4879 installation of third-party Lisp code from CCLAN or other sites
4881 * Threaded builds (:SB-THREAD) now support SB-THREAD:INTERRUPT-THREAD,
4882 which forces another thread to execute a function supplied by the
4884 * bug 75 fix: WITH-OUTPUT-TO-STRING (and MAKE-STRING-OUTPUT-STREAM)
4885 now accept and act upon their :ELEMENT-TYPE keyword argument.
4886 (reported by Martin Atzmueller, Edi Weitz)
4887 * bug fix: FILE-POSITION now accepts position designators up to
4888 ARRAY-DIMENSION-LIMIT or the extreme of the off_t range, whichever
4889 is the greater. (thanks to Patrik Nordebo)
4890 * bug fix: MAKE-ARRAY ignored :INITIAL-CONTENTS NIL. (reported by
4891 Kalle Olavi Niemitalo)
4892 * bug fix: the CLASS-PROTOTYPE of the GENERIC-FUNCTION class is now
4893 printable. (reported by Eric Marsden)
4894 * bug fix in sb-posix: mmap() now works on systems with a 64-bit
4895 off_t, including Darwin and FreeBSD. (thanks to Andreas Fuchs)
4896 * x86 bug fix in control stack exhaustion checking: now shows backtrace
4897 * bug fix in WITH-TIMEOUT: now the body can have more than one form.
4898 (thanks to Stig Sandoe)
4899 * bug fix in READ-SEQUENCE: READ-SEQUENCE following PEEK-CHAR or
4900 UNREAD-CHAR now correctly includes the unread character in the
4901 target sequence. (thanks to Gerd Moellmann)
4902 * bug fix in threaded builds: the system can now be suspended and
4903 resumed by shell job control with minimal disruption.
4904 * bug fixes in times and timezones >2038AD
4905 * better handling of "where is GNU make?" problem in build scripts
4906 (thanks to Nikodemus Siivola)
4907 * new optimization: inside a named function any reference to a
4908 function with the same name is considered to be a self-reference;
4909 this behaviour is controlled with SB-C::RECOGNIZE-SELF-CALLS
4910 optimization quality.
4911 * new optimization on x86: logical functions and + now have
4912 optimized (UNSIGNED-BYTE 32) versions, which are automatically
4913 used when the result is truncated to 32 bits.
4914 * VALUES declaration is partially enabled.
4915 * fixes in SB-GROVEL (thanks to Andreas Fuchs)
4916 * fixed some bugs revealed by Paul Dietz' test suite:
4917 ** The system now obeys the constraint imposed by
4918 UPGRADED-ARRAY-ELEMENT-TYPE that the upgraded array element
4919 types form a lattice under type intersection.
4920 ** FFLOOR, FTRUNCATE, FCEILING and FROUND work with integers.
4921 ** ASSOC now ignores NIL elements in an alist.
4922 ** CEILING now gives the right answer with MOST-NEGATIVE-FIXNUM
4923 and (1+ MOST-POSITIVE-FIXNUM) answers.
4924 ** The addition of a method with invalid qualifiers to a generic
4925 function does not cause an error to be signalled immediately;
4926 a warning is signalled, and the error is generated only on
4927 calling the generic function.
4928 * changed .fasl file version number, in part to add type codes for
4929 new array subtypes UNSIGNED-BYTE 7, 15, 29, and 31 mandated by
4930 obscure ANSI requirements
4932 changes in sbcl-0.8.2 relative to sbcl-0.8.1:
4933 * fixed bug 148: failure to inline-expand a local function left
4934 garbage, confusing the compiler.
4935 * fixed bugs 3cd: structure slot readers perform type check if the
4936 slot can have an invalid value (i.e. it is either not initialized
4937 or can be written with a less specific slot writer).
4938 * bug fix: the compiler now traps array references to elements off
4939 the end of an array; previously, the bounds checking in some
4940 circumstances could go off-by-one.
4941 * improved MACHINE-VERSION, especially on Linux (thanks to Lars
4943 * type declarations for array element types now obey the description
4944 on the CLHS page "Declaration TYPE", as per discussions on
4945 sbcl-help around 2003-05-08. This means that a declaration
4946 (TYPE (ARRAY FOO) BAR) means that, within the scope of the
4947 declaration, all references to BAR will be asserted or assumed
4948 (with THE, so dependent on compiler policy) to involve objects of
4949 type FOO. Note that no such declaration is implied in
4950 (MAKE-ARRAY .. :ELEMENT-TYPE 'FOO).
4951 * declared types of functions from the "Conditions"
4952 chapter. (reported by Paul Dietz)
4953 * bug fix: CERROR accepts a function as its first argument.
4954 * bug fix: NTH an NTHCDR accept a bignum as index
4955 arguments. (reported by Adam Warner)
4956 * optimization: character compare routines now optimize comparing
4957 against a constant character. (reported by Gilbert Baumann)
4958 * bug fix: (SETF AREF) on byte-sized-element arrays with constant index
4959 argument now works properly on the MIPS platform.
4960 * fixed compiler failure on (TYPEP x '(NOT (MEMBER 0d0))).
4961 * repeated evaluation of the same DEFSTRUCT, a slot of which is
4962 declared to have a functional type, does not cause an error
4964 * fixed bug: sometimes MAKE-INSTANCE did not work with classes with
4965 many :DEFAULT-INITARGS. (reported by Istvan Marko)
4966 * fixed bug: if last continuation of a deleted block has a
4967 destination, this destination should be deleted too. (reported by
4969 * fixed a bug in the bootstrap process: the host compiler's values
4970 of ARRAY-DIMENSION-LIMIT and ARRAY-TOTAL-SIZE-LIMIT no longer leak
4971 into the newly-built SBCL. (reported by Eric Marsden on #lisp,
4972 test case from Patrik Nordebo)
4973 * improved the ability of the disassembler on the PPC platform to
4974 provide helpful disassembly notes.
4975 * SB-MOP:CLASS-PROTOTYPE on built-in-classes returns an instance of
4976 the class in more cases than previously.
4977 * bug fix: FILE-POSITION now understands :START and :END for
4978 STRING-INPUT-STREAMs. (thanks to Nikodemus Siivola)
4979 * bug fix: (SIGNED-BYTE 8) streams no longer return (UNSIGNED-BYTE
4980 8) data. (thanks to David Lichteblau)
4981 * bug fix: it is possible to add a method to a generic function
4982 without lambda list.
4983 * bug fix: reader failed to signal END-OF-FILE inside an
4984 object representation. (reported by Nikodemus Siivola)
4985 * fixed some bugs revealed by Paul Dietz' test suite:
4986 ** LAST and [N]BUTLAST should accept a bignum.
4987 ** condition slot accessors are methods.
4988 ** (VECTOR NIL) is a subtype of STRING.
4990 changes in sbcl-0.8.1 relative to sbcl-0.8.0:
4991 * minor incompatible change: some nonsensical specialized lambda
4992 lists (used in DEFMETHOD) which were previously ignored now signal
4994 * minor incompatible change: the system is now aware of the types of
4995 variables in the COMMON-LISP package, and will signal errors for
4996 most violations of these type constraints (where previously they
4997 were silently accepted).
4998 * minor incompatible change: COMPILE-FILE now uses the freedom
4999 afforded (ANSI 3.2.2.3) to use derived function types for
5000 functions defined in the same file. This also permits the system
5001 to warn on static type mismatches and function
5002 redefinition. (Currently it does not work with high DEBUG level.)
5003 * minor incompatible change: VALUES declaration is disabled.
5004 * When issuing notes, the compiler now signals a condition of type
5005 SB-EXT:COMPILER-NOTE, and provides an associated MUFFLE-WARNING
5006 restart for use in user handlers. It is expected that the
5007 COMPILER-NOTE condition will eventually become a condition
5008 supertype to a hierarchy of note types, which will then be
5009 handleable in a similar fashion. However, at the moment, no such
5010 note subtypes yet exist. (SB-INT:SIMPLE-COMPILER-NOTE exists,
5011 but it's an implementation detail, not a classification for the
5013 * Changes in type checking closed the following bugs:
5014 ** type checking of unused values (192b, 194d, 203);
5015 ** template selection based on unsafe type assertions (192c, 236);
5016 ** type checking in branches (194bc).
5017 * A short form of VALUES type specifier has ANSI meaning (it has
5018 increased the number of situations when SBCL cannot perform type
5020 * fixed bug in DEFSTRUCT: once again, naming structure slots with
5021 keywords or constants is permissible.
5022 * STREAM-READ-SEQUENCE and STREAM-WRITE-SEQUENCE now have methods
5023 defined on the relevant FUNDAMENTAL-BINARY-{INPUT,OUTPUT}-STREAM
5024 classes. (thanks to Antonio Martinez)
5025 * improved ANSIness in DESCRIBE: The DESCRIBE function no longer
5026 outputs FRESH-LINE or TERPRI, and no longer converts its stream
5027 argument to a pretty-print stream. Instead, it leaves any such
5028 operations to DESCRIBE-OBJECT methods.
5029 * bug fix: APROPOS now respects the EXTERNAL-ONLY flag. (reported
5031 * bug fix: NIL is now a valid destructuring argument in DEFMACRO
5032 lambda lists. (thanks to David Lichteblau)
5033 * bug fix: Defining a generic function with a :METHOD-CLASS being a
5034 subclass of STANDARD-METHOD no longer causes stack exhaustion.
5035 (thanks to Gerd Moellmann)
5036 * fixed bug 246: increased compilation speed of long
5037 MULTIPLE-VALUE-BIND (and likewise of NTH-VALUE with a constant
5039 * a contributed module implementing COMPILER-LET and MACROEXPAND-ALL
5041 * DEFCONSTANT now throws a condition of type
5042 SB-EXT:DEFCONSTANT-UNEQL if it is being asked to redefine a
5043 constant to a non-EQL value; CONTINUE and ABORT restarts
5044 respectively change and preserve the value.
5045 * fixed bug 63: The code walker, part of the implementation of CLOS,
5046 is now better at handling symbol macros.
5047 * bug fix: There is no longer an internal implementation type named
5048 CL:LENGTH. (reported by Raymond Toy)
5049 * bug fix: In macro-like defining macros/special operators the
5050 implicit block does not enclose the lambda list.
5051 * fixed bugs 10 and 43: Bare VALUES, AND, OR and MEMBER symbols (not
5052 enclosed in parentheses) are not suitable as type specifiers, and
5053 their use properly signals an error now.
5054 * bug fix: An argument count mismatch for a type specifier in code
5055 being compiled no longer causes an unhandled error at compile
5056 time, but signals a compile-time warning.
5057 * fixed simple vector readable printing
5058 * bug fix: DESCRIBE takes more care over whether the class
5059 precedence list slot of a class is bound before accessing it.
5060 (reported by Markus Krummenacker)
5061 * bug fix: FORMATTER can successfully compile pretty-printer format
5062 strings which use variants of the ~* directive inside.
5063 * bug fix: SEARCH now applies its TEST predicate to the elements of
5064 the arguments in the correct order. (thanks to Wolfhard Buss)
5065 * fixed bug 235b: The compiler uses return types of MAPCAR and friends
5066 in type inference. (thanks to Robert E. Brown)
5067 * bug fix: Reading in symbols with an explicit package name of ""
5068 (e.g. '||::FOO) now works correctly. (reported by Henrik Motakef)
5069 * fixed some bugs revealed by Paul Dietz' test suite:
5070 ** NIL is now allowed as a structure slot name.
5071 ** Arbitrary numbers, not just REALs, are allowed in certain
5072 circumstances in LOOP for-as-arithmetic clauses.
5073 ** Multiple class redefinitions before slot access no longer
5074 causes a type error.
5075 ** (SETF FIND-CLASS) now accepts NIL as an argument to remove the
5076 association between the name and a class.
5077 ** Generic functions with non-standard method-combination and over
5078 five methods all of which return constants no longer return NIL
5079 after the first few invocations. (thanks to Gerd Moellmann)
5080 ** CALL-NEXT-METHOD with no arguments now passes the original
5081 values of the arguments, even in the presence of assignment.
5082 ** Functions [N]SUBST*, LAST, NRECONC, [N]SUBLIS may return any
5084 ** DISASSEMBLE works with closures and funcallable instances.
5085 ** ADD-METHOD now returns the generic function, not the new method.
5086 ** FIND-METHOD signals an error if the lengths of the specializers
5087 is incompatible with the generic function, even if the ERRORP
5089 ** TYPE-OF returns recognizeable subtypes of all built-in-types of
5090 which its argument is a member.
5091 ** DEFCLASS only redefines the class named by its class-name
5092 argument if that name is the proper name of the class;
5093 otherwise, it creates a new class.
5094 ** SLOT-UNBOUND now correctly initalizes the CELL-ERROR-NAME slot
5095 of the UNBOUND-SLOT condition to the name of the slot.
5096 ** (SETF (AREF bv 0) ...) did not work for bit vectors.
5097 ** SLOT-UNBOUND and SLOT-MISSING now have their return values
5098 treated by SLOT-BOUNDP, SLOT-VALUE, (SETF SLOT-VALUE) and
5099 SLOT-MAKUNBOUND in the specified fashion.
5101 changes in sbcl-0.8.0 relative to sbcl-0.8alpha.0
5102 * SBCL now builds using CLISP (version of late April 2003 from CVS) as
5103 cross-compilation host. As a consequence, we can now bootstrap our
5104 way up to SBCL starting with a bare gcc toolchain and human-readable
5105 source code (first the source to CLISP, then the source to SBCL).
5106 * A contributed module containing a partial implementation of the
5107 simple-streams interface has been included. (thanks to Rudi
5109 * A contributed module implementing the RFC1321 Message Digest
5110 Algorithm, known as MD5, has been included.
5111 * minor incompatible change: The :NEGATIVE-ZERO-IS-NOT-ZERO feature
5112 no longer has any effect, as the code controlled by this feature
5113 has been deleted. (As far as we know, no-one has ever built using
5114 this feature, and its semantics were confused in any case).
5115 * minor incompatible change: As a consequence of making SLOT-EXISTS-P
5116 work on conditions (as required by the ANSI specification),
5117 SLOT-VALUE, (SETF SLOT-VALUE) and SLOT-BOUNDP likewise have the
5118 expected behaviour on conditions. Users should note, however,
5119 that such behaviour is not required by the ANSI specification,
5120 and so use of this behaviour may render their code unportable.
5121 * fixed some bugs revealed by Paul Dietz' test suite:
5122 ** the GENERIC-FUNCTION type is no longer disjoint from FUNCTION
5124 ** &ENVIRONMENT parameter in macro lambda list is bound first.
5125 ** SXHASH on condition objects no longer returns NIL.
5126 ** :ALLOCATION :CLASS slots are better treated; their values are
5127 updated on class redefinition, and initforms inherited from
5128 superclasses are applied.
5129 ** REMOVE-METHOD returns its generic function argument even when
5130 no method was removed.
5131 ** SHARED-INITIALIZE now initializes the values of the requested
5132 slots, including those with :ALLOCATION :CLASS.
5133 ** ALLOCATE-INSTANCE now works on structure classes defined via
5134 DEFSTRUCT (and not just by those from DEFCLASS :METACLASS
5136 ** SLOT-EXISTS-P now works on conditions, as well as structures
5138 ** MAKE-LOAD-FORM now has the required methods on
5139 STRUCTURE-OBJECT, CONDITION and STANDARD-OBJECT.
5140 ** MAKE-LOAD-FORM-SAVING-SLOTS no longer returns a special
5141 keyword, and now implements the SLOT-NAMES argument.
5142 ** methods with &OPTIONAL arguments no longer allow too many
5143 arguments to be passed in the call without error.
5144 ** DEFGENERIC now checks that the :ARGUMENT-PRECEDENCE-ORDER
5145 option is consistent with the required arguments of the generic
5146 function lambda list.
5147 * bug fix: REQUIRE accepts a string designator. (Thanks to
5149 * bug fix: SB-MOP:DIRECT-SLOT-DEFINITION-CLASS and
5150 SB-MOP:EFFECTIVE-SLOT-DEFINITION-CLASS now have the
5151 specified-by-AMOP lambda list of (CLASS &REST INITARGS).
5152 * bug fix: The compiler now checks for duplicated variables in macro
5154 * bug fix: SETQ on globals returns the correct value.
5155 * fixed bug 47.d: (DEFGENERIC IF (X)) now signals a PROGRAM-ERROR,
5156 not a COMPILER-ERROR (followed by some other strange error on
5157 choosing the CONTINUE restart).
5158 * bug fix: make.sh and friends are now more consistent in the way that
5159 they look for GNU "make".
5161 changes in sbcl-0.8alpha.0 relative to sbcl-0.7.14
5162 * experimental native threads support (on x86 Linux >=2.4 only).
5163 This is not compiled in by default: you need to add :SB-THREAD to
5164 the target features. See the "Beyond ANSI" chapter of the manual
5166 * fix for longstanding nonANSIism: The old distinction between
5167 CL:CLASS objects and SB-PCL:CLASS objects has been eliminated.
5168 The return value from CL:FIND-CLASS is now a CLOS class, and
5169 likewise that of CL:CLASS-OF; CL:BUILT-IN-CLASS,
5170 CL:STRUCTURE-CLASS and CL:STANDARD-CLASS name CLOS classes.
5171 * An interface to the MetaObject Protocol, as described in Kiczales,
5172 des Rivieres and Bobrow's "The Art of the Metaobject Protocol",
5173 MIT Press, 1991, is available from the SB-MOP package.
5174 * incompatible change: the SB-PCL package should now be considered
5175 a private implementation detail, and no longer a semi-private MOP
5177 * minor incompatible change: due to rearrangement for threads, the
5178 control stack and binding stack are now allocated at arbitrary
5179 addresses instead of being hardcoded per-port. Users affected by
5180 this probably have to be doing advanced things with shared
5181 libraries, and will know who they are.
5182 * minor incompatible change: Previously, all --eval forms used were
5183 processed with READ before any of them were processed with EVAL.
5184 Now each --eval form is processed with both READ and EVAL before
5185 the next --eval form is processed. (Thus package operations like
5186 sbcl --eval "(defpackage :foo)" --eval "(print 'foo::bar)" now
5187 work as the user might reasonably expect.)
5188 * minor incompatible change: *STANDARD-INPUT* is now only an
5189 INPUT-STREAM, not a BIDIRECTIONAL-STREAM. (thanks to Antonio
5191 * minor incompatible change: Y-OR-N-P is now character-oriented,
5192 not line oriented. Also, YES-OR-NO-P now works without errors.
5193 (thanks to Antonio Martinez)
5194 * sb-aclrepl module improvements: an integrated inspector, added
5195 repl features, and a bug fix to :trace command.
5196 * Known functions, which cannot be open coded by the backend, are
5197 considered to be able to check types of their arguments. (fixing
5198 a bug report by Nathan J. Froyd)
5199 * fixed a bug in computing method discriminating functions: It is
5200 now possible to define methods specialized on classes which have
5201 forward-referenced superclasses. (thanks to Gerd Moellmann)
5202 * fixed evaluation order in optional entries (reported by Gilbert
5204 * SB-MOP:ENSURE-CLASS-USING-CLASS now takes its arguments in the
5205 specified-by-AMOP order of (CLASS NAME &REST ARGS &KEY).
5206 * SB-MOP:COMPUTE-EFFECTIVE-SLOT-DEFINITION now takes the
5207 required-by-AMOP NAME argument, as well as CLASS and
5208 DIRECT-SLOT-DEFINITIONS. (thanks to Kevin Rosenberg)
5209 * fixed bug 20: DEFMETHOD can define methods using names that are
5210 not the proper names of classes to designate class specializers.
5211 * bug fix: INTERACTIVE-STREAM-P now works on streams associated with
5212 Unix file descriptors, instead of blowing up. (thanks to Antonio
5214 * Garbage collection refactoring: user-visible change is that a
5215 call to the GC function during WITHOUT-GCING will not do garbage
5216 collection until the end of the WITHOUT-GCING. If you were doing
5217 this you were probably losing anyway.
5218 * fixed bug in MEMBER type: (MEMBER 0.0) is not the same as
5219 (SINGLE-FLOAT 0.0 0.0), because of the existence of -0.0 which is
5220 TYPEP the latter but not the former.
5221 * The compiler issues a full WARNING for calls to undefined functions
5222 with names from the CL package.
5223 * MAP-INTO for a vector destination is open coded. (reported by
5224 Brian Downing on c.l.l)
5225 * bug fix: the long form of DEFINE-METHOD-COMBINATION now accepts a
5226 documentation string.
5227 * fixed some bugs revealed by Paul Dietz' test suite:
5228 ** COPY-ALIST now signals an error if its argument is a dotted
5230 ** Condition slots are now accessed more correctly in the presence
5231 of multiple initargs for a given slot.
5232 ** The USE-VALUE, CONTINUE and STORE-VALUE functions now correctly
5233 exclude restarts of the same name associated with a different
5235 ** DEFCLASS of forward-referenced classes with another
5236 forward-referenced class in the superclasses list no longer
5238 ** Condition slots are now initialized once each, not multiple
5239 times. (thanks to Gerd Moellmann)
5240 ** CONVERT-MORE-CALL failed on a lambda list (&KEY). (thanks to
5242 ** &WHOLE and &REST arguments in macro lambda lists are patterns.
5243 ** NSET-EXCLUSIVE-OR does not return extra elements when its
5244 arguments contain duplicated elements.
5245 ** RESTART-CASE understands local macros.
5246 ** RESTART-CASE associates exactly its own restarts with a condition.
5247 ** ENDP in safe mode checks its argument to be of type LIST.
5248 ** COPY-SYMBOL in a threaded build no longer fails when the symbol
5249 in question is unbound.
5250 ** Optimized MAKE-INSTANCE functions no longer cause internal
5251 assertion failures in the presence of duplicate initargs.
5252 ** SLOT-MAKUNBOUND returns the instance acted upon, not NIL.
5253 ** Side-effectful :DEFAULT-INITARGS have their side-effects
5254 propagated even in the ctor optimized implementation of
5256 ** :ALLOW-OTHER-KEYS NIL is now accepted in an initarg list.
5258 changes in sbcl-0.7.14 relative to sbcl-0.7.13:
5259 * a better implementation of SXHASH on (simple) bit vectors,
5260 measured both in execution speed and in distribution of results
5261 over the positive fixnums, has been installed. Likewise, a better
5262 implementation of EQUAL for simple bit vectors is now available.
5263 * fixed CEILING optimization for a divisor of form 2^k.
5264 * fixed bug 240 (emitting extra style warnings "using the lexical
5265 binding of the symbol *XXX*" for &OPTIONAL arguments). (reported
5266 by Antonio Martinez)
5267 * fixed SXHASH, giving different results for NIL depending on type
5268 declarations (SYMBOL or LIST). (thanks to Gerd Moellmann)
5269 * fixed bug in DEFPARAMETER and DEFVAR: they could assign a lexical
5270 variable. (found by Rolf Wester)
5271 * SBCL does not ignore type declarations for special
5272 variables. (reported by rif on c.l.l 2003-03-05)
5273 * some bug fixes in contrib/sb-aclrepl/
5274 * fixed some bugs revealed by Paul Dietz' test suite:
5275 ** a bug in the CONS type specifier, whereby the CAR and CDR
5276 types got intertwined, has been fixed;
5277 ** the type system is now able to reason about the interaction
5278 between INTEGER and RATIO types more completely;
5279 ** APPEND, [N]REVERSE and NRECONC check that those their
5280 arguments, which must be proper lists, are really so;
5281 ** An array specialized to be unable to hold elements has been
5282 implemented, as required -- yes, really -- by ANSI;
5283 ** GETF and GET-PROPERTIES throw a TYPE-ERROR, not a SIMPLE-ERROR,
5284 on malformed property lists;
5286 changes in sbcl-0.7.13 relative to sbcl-0.7.12:
5287 * incompatible packaging change: in line with Unix convention,
5288 SBCL now looks for its core file in /usr/{local/,}lib/sbcl/sbcl.core
5289 if it's not in $SBCL_HOME. It also sets SBCL_HOME to match.
5290 * REQUIRE and PROVIDE are now optionally capable of doing something
5291 useful. See the documentation string for REQUIRE.
5292 * infrastructure for a managed SBCL contrib system: contributed
5293 modules in this release include:
5294 ** the ASDF system definition facility;
5295 ** an interface to the BSD Sockets API;
5296 ** an ACL-like convenience interface to the repl;
5297 (thanks to Kevin Rosenberg)
5298 ** an implementation of ROTATE-BYTE, with efficient implementation
5300 * fixed a bug in LOG, so that LOG of a rational argument near 1 now
5301 gives a closer approximation to the right answer than previously.
5302 (thanks to Raymond Toy)
5303 * fixed bug 157: TYPEP, SUBTYPEP, UPGRADED-ARRAY-ELEMENT-TYPE and
5304 UPGRADED-COMPLEX-PART-TYPE now take (ignored, in all situations)
5305 optional environment arguments, as required by ANSI.
5306 * fixed bugs in other functions taking environment objects, allowing
5307 calls with an explicit NIL environment argument to be compiled
5309 * fixed bug 228: primary return values from
5310 FUNCTION-LAMBDA-EXPRESSION are either NIL or suitable for input to
5311 COMPILE or FUNCTION.
5312 * fixed a bug in DEFSTRUCT: predicates for :NAMED structures with
5313 :TYPE will no longer signal errors on innocuous objects.
5314 * fixed bug 231b: SETQ is better at respecting type declarations in
5315 the lexical environment.
5316 * fixed a bug in DEFCLASS: classes named by symbols with no or
5317 unprintable packages can now be defined.
5318 * fixed a bug in RESTART-BIND: The :TEST-FUNCTION option had been
5319 carelessly renamed to :TEST-FUN. (thanks to Robert E. Brown)
5320 * fixed compiler failure related to checking types of functions.
5321 (reported by Robert E. Brown)
5322 * the compiler is now much more consistent in its error-checking
5323 treatment of bounding index arguments to sequence functions: in
5324 (SAFETY 3) code, errors will be signalled in almost all cases if
5325 invalid sequence bounding indices are passed to functions defined
5326 by ANSI to operate on sequences.
5327 * fixed a bug in the build procedure: documentation of SBCL-specific
5328 packages is now preserved and available in the final Lisp image.
5329 * lifted FDEFINITION lookup out of loops in the implementation of
5330 many list operations. (thanks to Robert E. Brown)
5331 * fixed a bug in the reader: the #n# reader macro now works for
5332 objects of type STANDARD-OBJECT. (reported by Tony Martinez)
5333 * the compiler is now aware that SYMBOL-FUNCTION returns a FUNCTION
5334 and that READ-DELIMITED-LIST returns a LIST. (thanks to Robert
5335 E. Brown and Tony Martinez respectively)
5336 * PCL is now smarter about SLOT-VALUE, (SETF SLOT-VALUE) and
5337 SLOT-BOUNDP: in particular, it is now able to optimize them much
5338 better, and is now not vulnerable to having packages renamed.
5339 Furthermore, a compliance bug has been fixed: SLOT-MISSING is now
5340 always called when a slot is not present in an instance. (thanks
5342 * fixed a bug related to CONCATENATED-STREAMs: PEEK-CHAR will no
5343 longer signal an error on unreading a character following EOF on
5344 the previous constituent stream. (thanks to Tony Martinez)
5345 * fixed some bugs revealed by Paul Dietz' test suite:
5346 ** ARRAY-IN-BOUNDS-P now allows arbitrary integers as arguments,
5347 not just nonnegative fixnums;
5348 ** the logical bit-array operators such as BIT-AND now accept an
5349 explicit NIL for their "opt-arg" argument (to indicate a
5350 freshly-consed result bit-array);
5351 ** ELT now signals an error on an invalid sequence index in safe
5353 ** the type system is now cleverer about negations of numeric
5354 types, and consequently understands the BIGNUM and RATIO types
5356 ** the type system is now cleverer about the interaction between
5357 INTEGER and RATIO types: while bugs still remain, many more
5358 cases are accurately computed;
5359 ** in TYPECASE, OTHERWISE now only introduces an otherwise-clause
5360 if it is in the last clause;
5361 ** CONSTANTLY now correctly returns a side-effect-free function in
5363 ** DECLARE is no longer treated as a special-operator; in
5364 particular, SPECIAL-OPERATOR-P no longer returns T for DECLARE;
5365 * incremented fasl file version number due to the change in the
5366 DEFSTRUCT-SLOT-DESCRIPTION structure.
5368 changes in sbcl-0.7.12 relative to sbcl-0.7.11:
5369 * minor incompatible change: code processed by the "interpreter" or
5370 EVAL now has a compilation optimization policy of (DEBUG 2)
5371 (changed from (DEBUG 1)) to improve debuggability of interactive
5372 development, and to allow the use of the debug RETURN command in
5374 * an experimental implementation of the RETURN command for the
5375 debugger has been included. (thanks to Frederik Kuivinen)
5376 * fixed bug 62: constraints were not propagated into a loop.
5377 * fixed bug in embedded calls of SORT (reported and investigated by
5379 * fixed some bugs revealed by Paul Dietz' test suite:
5380 ** printing and reading of arrays with some dimensions having
5381 length 0 (thanks to Gerd Moellmann);
5382 ** BOA constructor with &AUX argument without a default value does
5383 not cause a type error;
5384 ** CONSTANTP now returns true for all self-evaluating objects.
5386 changes in sbcl-0.7.11 relative to sbcl-0.7.10:
5387 * fixed bug 127: DEFSTRUCT now does not clobber old structure
5388 accessors that are related by inheritance, as specified in the
5389 :CONC-NAME section of the specification of DEFSTRUCT. (thanks to
5390 Valtteri Vuorikoski)
5391 * The compiler is now able to inline functions that were defined in
5392 a complex lexical environment (e.g. inside a MACROLET).
5393 * fixed bug in DESCRIBE, which now works on rank-0 arrays. (thanks
5395 * Support for the upcoming FreeBSD-5.0 release has been included.
5396 (thanks to Dag-Erling Smorgrav)
5397 * fixed bug 219: DEFINE-COMPILER-MACRO no longer has compile-time
5398 effect when it is not in a toplevel context.
5399 * fixed bug 222: DEFMETHOD and SYMBOL-MACROLET interactions now
5400 stand a better chance of being correct. (thanks to Gerd
5402 * fixed bug in COERCE, which now signals an error on coercing a
5403 rational to a bounded real type which excludes the expected
5405 * The compiler is now able to derive types more accurately from the
5406 COERCE and COMPILE functions.
5407 * fixed bug 223: functional binding is considered to be constant
5408 only for symbols in the CL package.
5409 * fixed bug 231: SETQ did not check the type of a variable being set
5410 (reported by Robert E. Brown)
5411 * A new optimization for MAKE-INSTANCE has been included, fixing
5412 various bugs (including relating to :ALLOCATION :CLASS slots and
5413 :DEFAULT-INITARGS over-eager evalueation). (thanks to Gerd
5415 * fixed some LOOP bugs revealed by Paul Dietz' test suite:
5416 ** As required by ANSI, LOOP now disallows anonymous collection
5417 clauses such as COLLECT I in conjunction with aggregate boolean
5418 clauses such as THEREIS (= I 1);
5419 ** LOOP now signals an error when any variable is reused in the
5420 same loop (including the potentially useful construct analogous
5421 to WITH A = 1 WITH A = (1+ A);
5422 ** IT is only a special loop symbol within the first clause of a
5423 conditional loop clause;
5424 ** LOOP with a typed iteration variable over a hashtable now
5425 signals a type error iff it should.
5426 * fixed some other bugs revealed by Paul Dietz' test suite:
5427 ** FILE-STREAM now names the class previously known as FD-STREAM;
5428 ** in DEFSTRUCT, a bare :CONC-NAME (or a :CONC-NAME with no
5429 argument) no longer signals an error;
5430 ** likewise in DEFSTRUCT, :CONC-NAME NIL now respects the package
5431 of the slot symbol, rather than using the current package
5432 ((:CONC-NAME "") continues to intern the slot's name in the
5434 * incremented fasl file version number, because of the incompatible
5435 change to the DEFSTRUCT-DESCRIPTION structure, and again because
5436 of the new implementation of DEFINE-COMPILER-MACRO.
5438 changes in sbcl-0.7.10 relative to sbcl-0.7.9:
5439 * Support for building SBCL for MIPS platforms running in
5440 little-endian mode has now been checked in, and basic
5441 functionality on said platforms verified.
5442 * minor incompatible change: PCL now records the pathname of a file
5443 in which methods and the like are defined, rather than its
5445 * minor incompatible change: TRUENAME now considers the truename of
5446 a file naming a directory to be the pathname with :DIRECTORY
5447 component indicating that directory.
5448 * minor incompatible change: a NAMED clause in the extended form of
5449 LOOP no longer causes a BLOCK named NIL to surround the LOOP. The
5450 reason for the previous behaviour is unclear.
5451 * more systematization and improvement of CLOS and MOP conformance
5452 in PCL (thanks to Gerd Moellman and Pierre Mai):
5453 ** the standard ANSI CL generic function NO-NEXT-METHOD is now
5455 ** DEFINE-METHOD-COMBINATION no longer signals an error for
5456 primary methods with no specializers;
5457 ** the MOP generic function GENERIC-FUNCTION-DECLARATIONS is now
5459 ** the Readers for Class Metaobjects methods CLASS-DIRECT-SLOTS
5460 and CLASS-DIRECT-DEFAULT-INITARGS have been implemented for
5461 FORWARD-REFERENCED-CLASSes; error reporting on
5462 CLASS-DEFAULT-INITARGS, CLASS-PRECEDENCE-LIST and CLASS-SLOTS
5464 ** SXHASH on CLOS instances now uses a slot internal to the
5465 instance to return different numbers on distinct instances,
5466 while preserving the same return value through invocations of
5468 ** DEFMETHOD signals errors when methods with longer incongruent
5469 lambda lists are added to generic functions;
5470 ** COMPUTE-CLASS-PRECEDENCE-LIST now has a method specialized on
5471 CLASS, as specified in AMOP;
5472 ** COMPUTE-SLOTS :AROUND now assigns locations sequentially based
5473 on the order returned by the primary method for classes of
5474 class STANDARD-CLASS;
5475 ** DEFINE-METHOD-COMBINATION now works with the :ARGUMENTS option.
5476 * fixed some bugs shown by Paul Dietz' test suite:
5477 ** DOLIST puts its body in TAGBODY;
5478 ** SET-EXCLUSIVE-OR sends arguments to :TEST function in the
5480 ** MULTIPLE-VALUE-SETQ evaluates side-effectful places before
5481 value producing form;
5482 ** if more variables are given to PROGV than values, extra
5483 variables are bound and made to have no value;
5484 ** NSUBSTITUTE on list arguments gets the right answer with
5486 ** ELT signals an error of type TYPE-ERROR when the index argument
5487 is not a valid sequence index;
5488 ** LOOP signals (at macroexpansion time) an error of type
5489 PROGRAM-ERROR when duplicate variable names are found;
5490 ** LOOP supports DOWNTO and ABOVE properly; (thanks to Matthew Danish)
5491 ** FUNCALL of special-operators now cause an error of type
5493 ** PSETQ now works as required in the presence of side-effecting
5494 symbol-macro places;
5495 ** NCONC accepts any object as its last argument;
5496 ** :COUNT argument to sequence functions may be BIGNUM; (thanks to
5498 ** loop-for-as-package does not require a package to be explicitely
5500 ** LOOP WITH now treats NIL in the d-var-spec correctly as an
5502 * fixed bug 166: compiler preserves "there is a way to go"
5503 invariant when deleting code.
5504 * fixed bug 172: macro lambda lists with required arguments after
5505 &REST arguments now cause an error to be signalled. (thanks to
5507 * fixed Entomotomy PEEK-CHAR-WRONGLY-ECHOS-TO-ECHO-STREAM
5508 bug. (thanks to Matthew Danish)
5509 * fixed bug 225: STRING-STREAM is now a class. (reported by Gilbert
5511 * fixed bug 136: CALL-NEXT-METHOD no longer gets confused when
5512 arguments are lexically rebound. (thanks to Gerd Moellmann and
5514 * fixed bug 194: error messages are now more informative when there
5515 is no primary method applicable in a call to a generic
5516 function. (thanks to Gerd Moellmann)
5517 * fixed bug in command line argument checking (thanks to Julian
5519 * fixed bug in COUNT-IF, making it handle :FROM-END correctly
5520 (thanks to Matthew Danish)
5521 * incremented fasl file version number, because of the
5522 SXHASH-related changes in the layout of CLOS data structures
5524 changes in sbcl-0.7.9 relative to sbcl-0.7.8:
5525 * minor incompatible change: The runtime (the Unix executable named
5526 "sbcl") is now much pickier about the .core files it will load.
5527 Essentially it now requires .core files to descend from the same
5528 build (not just the same sources or LISP-IMPLEMENTATION-VERSION)
5529 as the runtime does. (The intent is to prevent the crashes which
5530 can occur, and which can even be reported as mysterious failures,
5531 when people patch the sources or change the build parameters
5532 without changing LISP-IMPLEMENTATION-VERSION, then mix and match
5533 sbcl and .core files.)
5534 * fixed bug: VALUES-LIST is no longer optimized away.
5535 * fixed bug 142: The FFI conversion of C string values to Lisp
5536 string values no longer conses excessively. (thanks to Nathan
5537 Froyd porting Raymond Toy's fix to CMU CL)
5538 * began to systematize and improve MOP conformance in PCL (thanks to
5539 Nathan Froyd, Gerd Moellman and Pierre Mai):
5540 ** SLOT-DEFINITION-ALLOCATION now returns :CLASS, not the class
5542 ** GENERIC-FUNCTION-ARGUMENT-PRECEDENCE-ORDER is now implemented;
5543 ** FINALIZE-INHERITANCE is now called on class finalization;
5544 ** DOCUMENTATION and (SETF DOCUMENTATION) now have the correct
5545 argument precedence order.
5546 * fixed bug 202: The compiler no longer fails on functions whose
5547 derived types contradict their declared type.
5548 * DEFMACRO is implemented via EVAL-WHEN instead of IR1 translation,
5549 so it can be non-toplevel.
5550 * The fasl file version number has changed (because of the new
5551 implementation of DEFMACRO).
5552 * (mostly) fixed bugs 46b and 46c: sequence functions now check, in
5553 safe code, that any length requirement by their type-specifier
5554 argument is valid. The exceptions to this are described in bug
5556 * fixed bugs 46h and 46i: TWO-WAY- and CONCATENATED-STREAM creation
5557 functions now check the types of their inputs as required by ANSI.
5558 * fixed bug 48c: SYMBOL-MACROLET signals PROGRAM-ERROR when an
5559 introduced symbol is DECLAREd to be SPECIAL.
5560 * fixed reading of (COMPLEX DOUBLE-FLOAT) literals from fasl files
5561 * fixed bug: :COUNT argument to sequence functions may be negative
5562 * fixed bug: body of DO-SYMBOLS may contain declarations
5563 * fixed bug: PUSHNEW now evaluates its arguments from left to right
5564 (reported by Paul F. Dietz, fixed by Gerd Moellman)
5565 * fixed bug: PUSH, PUSHNEW and POP now evaluate a place given by a
5566 symbol macro only once
5567 * fixed printing of call frame when argument list is unavailable
5568 * fixed bug: :ALLOW-OTHER-KEYS is an allowed keyword name
5569 * compiler no longer signals WARNING on unknown keyword
5572 changes in sbcl-0.7.8 relative to sbcl-0.7.7:
5573 * A beta-quality port to the mips architecture running Linux,
5574 based on the old CMUCL backend, has been made. It has been tested
5575 on a big-endian kernel, and works sufficiently well to be able to
5576 rebuild itself; it has not been tested in little-endian mode.
5577 * fixed an inconsistency between gencgc.c and purify.c which made
5578 dumping/loading .core files unreliable
5579 * fixed bug 120a: The compiler now deals correctly with IFs where
5580 the consequent is the same as the alternative, instead of
5581 misderiving the return type. (thanks to Alexey Dejneka)
5582 * fixed bug 113: Logical pathnames are now dumpable (the logical
5583 host is resolved at load-time, throwing an error if it is not
5585 * fixed bug 174: FORMAT's error message is slightly clearer when a
5586 non-printing character is used in a format directive.
5587 * fixed several bugs in compiler checking of type declarations, i.e.
5588 violations of the Python "declarations are assertions" principle
5589 (thanks to Alexey Dejneka)
5590 * fixed several bugs in PCL's error checking (thanks to Gerd
5592 * fixed bug: printing of FILE-ERROR (thanks to Antonio
5594 * fixed bug in compilation of functions as first class values
5595 (thanks to Antonio Martinez-Shotton)
5596 * The compiler's handling TYPE-ERRORs which it can prove will
5597 inevitably happen at runtime has been cleaned up and corrected
5598 in several ways. (thanks to Alexey Dejneka)
5599 * improved argument type checking for various basic arithmetic
5600 operations (MAX, +, LOGXOR, etc.) which have had so much TLC
5601 lavished on them in the past that they can be compiled in many
5602 ways in different special cases
5603 * fixed bug 181: compiler checks validity of user supplied type
5605 * cleaned up code flushing in optimization: Function calls which
5606 should signal errors for safety purposes (e.g. which ANSI says
5607 should signal errors when their arguments are of incorrect type)
5608 are no longer optimized away.
5609 * added new extension: SB-DEBUG:BACKTRACE-AS-LIST
5610 * incremented fasl file version number, because changes in the
5611 implementation of sequence functions like COERCE caused
5612 internal utility functions like COERCE-TO-SIMPLE-VECTOR (used
5613 in old inline expansions) to become undefined. (Actually these
5614 changes were later undone, so we might very well be binary
5615 compatible with 0.7.7 after all, but leaving the version number
5616 incremented seemed like the simplest and most conservative
5619 changes in sbcl-0.7.7 relative to sbcl-0.7.6:
5620 * An alpha-quality port to the parisc architecture running Linux,
5621 based on the old CMUCL backend, has been made. This, even more so
5622 than the other backends, should be considered still a work in
5623 progress; known problems include that the Linux kernel in 64-bit
5624 mode does not propagate the correct sigcontext structure to
5625 userspace, and consequently SBCL on a parisc64 kernel will not
5627 * fixed bug 189: The compiler now respects NOTINLINE declarations for
5628 functions declared in FLET and LABELS. (I.e. "LET conversion" is
5629 suppressed.) Also now that the compiler is looking at declarations
5630 in the environment, it checks optimization declarations as well,
5631 and suppresses inlining when (> DEBUG SPEED).
5632 * More fixes have been made to treatment of floating point exception
5633 treatment and other Unix signals. In particular, floating point
5634 exceptions no longer cause Bus errors on the SPARC/Linux platform.
5635 * The detection and handling of control stack exhaustion (infinite
5636 or very deeply nested recursion) has changed. Stack exhaustion
5637 detection is now done by write-protecting pages at the OS level
5638 and applies at all optimization settings; when found, a
5639 SB-KERNEL:CONTROL-STACK-EXHAUSTED condition (subclass of
5640 STORAGE-CONDITION) is signalled, so stack exhaustion can no longer
5641 be caught using IGNORE-ERRORS.
5642 * Bugs 65, 70, and 109 fixed: The compiler now preserves invariants
5643 correctly when transforming recursive LABELS functions to LETs.
5644 (thanks to Alexey Dejneka)
5645 * Bug 48a./b. fixed: SYMBOL-MACROLET now refuses to bind symbols
5646 that are names of constants or global variables.
5647 * Bug fix: DEFINE-ALIEN-ROUTINE now declaims the correct FTYPE for
5648 alien routines with docstrings.
5649 * Bug 184 fixed: Division of ratios by the integer 0 now signals an
5650 error of type DIVISION-BY-ZERO. (thanks to Wolfhard Buss and
5652 * Bug fix: Errors in PARSE-INTEGER are now of type PARSE-ERROR.
5653 (thanks to Eric Marsden)
5654 * Bug fix: COERCE to (COMPLEX FLOAT) of rationals now returns an
5655 object of type (COMPLEX FLOAT). (thanks to Wolfhard Buss)
5656 * Bug fix: The SPARC backend can now compile functions involving
5657 LOGAND and stack-allocated arguments. (thanks to Raymond Toy)
5658 * Bug fix: We no longer segfault on passing a non-FILE-STREAM stream
5659 to a functions expecting a PATHNAME-DESIGNATOR.
5660 * Bug fix: DEFGENERIC now enforces the ANSI restrictions on its
5661 lambda lists. (thanks to Alexey Dejneka)
5662 * Bug fix: changed encoding of PCL's internal MAKE-INSTANCE
5663 functions so that EXPORTing the name of the class doesn't cause
5664 MAKE-INSTANCE functions from earlier DEFCLASSes to get lost (thanks
5665 to Antonio Martinez for reporting this)
5666 * Bug 192 fixed: The internal primitive DATA-VECTOR-REF can now be
5667 constant-folded without failing an assertion. (thanks to Einar
5668 Floystad Dorum for reporting this)
5669 * Bugs 123 and 165 fixed: array specializations on as-yet-undefined
5670 types are now dealt with more correctly by the compiler.
5671 * Minor incompatible change: COMPILE-FILE-PATHNAME now merges its
5672 OUTPUT-FILE argument with its INPUT-FILE argument, resulting in
5673 behaviour analogous to RENAME-FILE. This puts its behaviour more
5674 in line with ANSI's wording on COMPILE-FILE-PATHNAME. (thanks to
5676 * The fasl file version number has changed again. (because of the
5677 bug fix involving the names of PCL MAKE-INSTANCE functions)
5679 changes in sbcl-0.7.6 relative to sbcl-0.7.5:
5680 * bug fix: Floating point exceptions are treated much more
5681 consistently on the x86/Linux and PPC/Linux platforms.
5682 * Array initialization with :INITIAL-ELEMENT is now much faster for
5683 cases when the compiler cannot open code the array creation, but
5684 does know what the UPGRADED-ARRAY-ELEMENT-TYPE will be. General
5685 array accesses have also seen a speed increase.
5686 * bug fix: LOAD :IF-DOES-NOT-EXIST NIL now works when file type is
5687 specified. (This was at the root of some bad interactions between
5688 SBCL and ILISP: thanks to Gregory Wright for diagnosing this and
5690 * bug fix: Internal error arguments for undefined functions are now
5691 computed correctly on the PPC/Linux platform.
5692 * bug fix: Bad &REST syntax is now checked correctly. (thanks to
5693 Raymond Toy's patch for CMU CL)
5694 * Support for the Solaris 9 operating environment has been included
5695 (thanks to Daniel Merritt)
5696 * A very ugly but hopefully complete draft of the missing FFI chapter
5697 of the manual has been created by reformatting the corresponding
5698 CMU CL manual chapter into (currently very ugly and incoherent)
5699 DocBook and bringing it up to date for SBCL behavior. Thus, the
5700 manual is now essentially complete, at least by my extreme
5701 once-and-only-once standards, whereby it's acceptable to refer to
5702 the doc strings of SB-EXT functions as the primary documentation.
5703 * The fasl file version number has changed again, due to cleanup of
5704 (user-invisible) bitrotted stuff. (E.g. *!INITIAL-FDEFN-OBJECTS*
5705 is no longer a static symbol.)
5707 changes in sbcl-0.7.5 relative to sbcl-0.7.4:
5708 * SBCL now builds with OpenMCL (version 0.12) as the
5709 cross-compilation host; also, more progress has been made toward
5710 bootstrapping under CLISP.
5711 * SBCL now runs on the Tru64 (aka OSF/1) operating system on the
5713 * bug 158 fixed: The compiler can now deal with integer loop
5714 increments different from 1; fixing this turned out also to fix
5716 * bug 169 fixed: no more bogus warnings about using lexical bindings
5717 despite the presence of perfectly good SPECIAL declarations (thanks
5718 to David Lichteblau)
5719 * bug 175 fixed: CHANGE-CLASS is now more ANSI-conforming,
5720 accepting initargs. (thanks to Espen Johnsen and Pierre Mai)
5721 * bug 179 fixed: DIRECTORY can now deal with filenames with pattern
5723 * bug 180 fixed: Method combination specifications no longer ignore
5724 the :MOST-SPECIFIC-LAST option. (thanks to Pierre Mai)
5725 * bug fix: Structure type predicate functions now check their argument
5726 count as they should.
5727 * bug fix: Classes with :METACLASS STRUCTURE-CLASS now print
5728 correctly. (thanks to Pierre Mai)
5729 * minor incompatible change: The --noprogrammer option is deprecated
5730 in favor of the new --disable-debugger option, which is very similar.
5731 (The major difference is that it takes effect at a slightly different
5732 time at startup, causing handling of errors in --sysinit and
5733 --userinit files will be affected differently.) The
5734 SB-EXT:DISABLE-DEBUGGER and SB-EXT:ENABLE-DEBUGGER functions have
5735 been added to allow this functionality to be controlled from ordinary
5736 Lisp code. (ENABLE-DEBUGGER should help people like the Debian
5737 maintainers, who might want to run non-interactive scripts to
5738 build SBCL cores which will later be used interactively.)
5739 * minor incompatible change: The LOAD function no longer, when given
5740 a wild pathname to load, loads all files matching that pathname.
5741 Instead, an error of type FILE-ERROR is signalled.
5743 changes in sbcl-0.7.4 relative to sbcl-0.7.3:
5744 * bug 147 fixed: The compiler preserves its block link/count
5745 invariants more correctly now so that it doesn't crash. (thanks
5747 * Dynamic loading of object files in OpenBSD is now supported. (thanks
5749 * COMPILE now works correctly on macros. (thanks to Matthias Hoelzl)
5750 * GET-MACRO-CHARACTER and SET-MACRO-CHARACTER now represent
5751 no-value-for-this-character as NIL (as specified by ANSI).
5752 * HOST-NAMESTRING on physical pathnames now returns a string that is
5753 valid as a host argument to MERGE-PATHNAMES and to MAKE-PATHNAME.
5754 (thanks to Christophe Rhodes)
5755 * The Alpha port handles icache flushing more correctly. (thanks to
5757 * More progress has been made toward bootstrapping under CLISP. (thanks
5758 to Christophe Rhodes)
5759 * The fasl file format has changed again, because dynamic loading
5760 on OpenBSD (which has non-ELF object files) motivated some cleanups
5761 in the way that foreign symbols are transformed and passed around.
5762 * minor incompatible change: The ASCII RUBOUT character, (CHAR-CODE 127),
5763 is no longer treated as whitespace by the reader, but instead as
5764 an ordinary character. Thus e.g. (READ-FROM-STRING "A
\7fB") returns
5765 |A
\7fB|, instead of A as it used to.
5767 changes in sbcl-0.7.3 relative to sbcl-0.7.2:
5768 * ANSI's DEFINE-SYMBOL-MACRO is now supported. (thanks to Nathan
5769 Froyd porting CMU CL code originally by Douglas Thomas Crosher)
5770 * SBCL now runs on the PPC archtiecture under Linux. It actually did
5771 this as of 0.7.1.45, but was left out of the previous news section
5772 (thanks to Dan Barlow)
5773 * SBCL now runs on the Solaris operating system on SPARC architectures
5774 (thanks to Christophe Rhodes's port of the CMUCL runtime)
5775 * cleanups to the runtime on SPARC, both Linux and Solaris, and for
5776 gcc>=3 (thanks to Nathan Froyd and Ingvar Mattsson)
5777 * SPARC backend cleanups, allowing builds of cores optimized for V8
5778 and V9 SPARCS, and also emission of code targeted to a particular
5779 backend chosen at runtime (thanks to Christophe Rhodes and Raymond
5781 * SBCL is closer to bootstrapping under CLISP, thanks to various
5782 fixes by Christophe Rhodes.
5783 * The fasl file format has changed again, to allow the compiler's
5784 INFO database to support symbol macros.
5785 * The user manual (in doc/) is formatted into HTML more nicely.
5786 (thanks to coreythomas)
5787 * The system is smarter about SUBTYPEP relationships, especially
5788 those involving NOT types (including types such as ATOM which are
5789 represented internally using NOT types). Thus SUBTYPEP is less
5790 likely to return (VALUES NIL NIL) in general, and in particular
5791 bugs 58 and (the remaining bits of) bug 50 are fixed. (thanks to
5793 * The fasl file format has changed again, because the internal
5794 representation of types now includes a new slot to support the new
5795 SUBTYPEP-of-NOT-types logic.
5796 * (not a change in the main branch of SBCL, but a related prototype
5797 which can hopefully be merged into the main branch of SBCL in the
5798 future:) Brian Spilsbury has produced a Unicode-enabled variant of
5799 sbcl-0.7.0, available as a patch against sbcl-0.7.0 at
5800 <http://designix.com.au/brian/SBCL/sbcl-0.7.0-unicode.p0.gz>.
5801 * Bug 151 fixed: GET-DISPATCH-MACRO-CHAR now returns NIL for undefined
5802 dispatch macro character combinations. (thanks to Alexey Dejneka)
5803 * Bugfix in PARSE-NAMESTRING: we now correctly parse unix namestrings
5804 that superficially look like logical namestrings correctly.
5805 * USER-HOMEDIR-PATHNAME now returns a (physical) pathname that SBCL
5807 * Bugfix in DEFSTRUCT: BOA constructor lambda lists now accept (name
5808 default supplied-p) for &optional and &key arguments. (thanks to
5811 changes in sbcl-0.7.2 relative to sbcl-0.7.1:
5812 * incompatible change: The compiler is now less aggressive about
5813 tail call optimization, doing it only when (> SPACE DEBUG) or
5814 (> SPEED DEBUG). (This is an incompatible change because there are
5815 programs which relied on the old CMU-CL-style behavior to optimize
5816 away their unbounded recursion which will now die of stack overflow.)
5817 * minor incompatible change: The default BYTES-CONSED-BETWEEN-GCS
5818 for non-GENCGC systems has been increased to 20M (since that
5819 seems much closer to the likely performance optimum for modern
5820 systems than the old 4M value was)
5821 * minor incompatible change: new larger values for *DEBUG-PRINT-LENGTH*
5822 and *DEBUG-PRINT-LEVEL*
5823 * SBCL runs on SPARC systems now. (thanks to Christophe Rhodes' port
5824 of CMU CL's support for SPARC, and various endianness and other
5825 SBCL portability fixes due to Christophe Rhodes and Dan Barlow)
5826 * new syntactic sugar for the Unix command line: --load foo.bar is now
5827 an alternate notation for --eval '(load "foo.bar")'.
5829 ** The system now detects stack overflow and handles it gracefully,
5830 at least for (OR (> SAFETY (MAX SPEED SPACE)) (= SAFETY 3))
5831 optimization settings. (This is a good thing in general, and
5832 its introduction in this version should be particularly timely
5833 for anyone whose code fails because of suppression of tail
5835 ** The system now hunts for the C variable "environ" in a more
5836 devious way, to avoid segfaults when the C library version differs
5837 between compile time and run time. (thanks to Christophe Rhodes)
5838 ** INTEGER-valued CATCH tags now work. (thanks to Alexey Dejneka,
5839 and also to Christophe Rhodes for porting the fix to non-X86 CPUs)
5840 ** The compiler no longer issues bogus style warnings for undefined
5841 classes in the same source file as the DEFCLASSes which defined
5842 them. (thanks to Stig E Sandoe for reporting and Martin Atzmueller
5844 ** fixes in CONDITION class precedence list for undefined function
5845 errors (thanks to Alexei Dejneka)
5846 ** *DEFAULT-PATHNAME-DEFAULTS* is used more consistently and
5847 correctly. (thanks to Dan Barlow)
5848 ** portability fixes aiming at bootstrapping under CLISP (thanks
5849 to Dave McDonald and Christophe Rhodes)
5850 ** FORMAT fixes (thanks to Robert Strandh and Dan Barlow)
5851 ** fixes in type translation and and type inference (thanks to
5853 ** fixes to optimizer internal errors (thanks to Alexei Dejneka)
5854 ** various fixes in the new ports (thanks to Dan Barlow)
5855 * several changes related to debugging:
5856 ** suppression of tail recursion, as noted above
5857 ** stack overflow detection, as noted above
5858 ** The default implementation of TRACE has changed. :ENCAPSULATE T
5859 is now the default. (For some time encapsulation has been more
5860 reliable than the breakpoint-based :ENCAPSULATE NIL
5861 implementation, at least on X86 systems; and I just noticed that
5862 encapsulation also seems closer to the spirit of the ANSI
5865 changes in sbcl-0.7.1 relative to sbcl-0.7.0:
5867 ** SB-ALIEN:LOAD-FOREIGN and SB-ALIEN:LOAD-1-FOREIGN are set
5868 up properly again. (There was a packaging bug in 0.7.0 which
5869 left their definitions in SB-SYS::LOAD-FOREIGN and
5870 SB-SYS::LOAD-1-FOREIGN. LOAD-FOREIGN and LOAD-1-FOREIGN are
5871 vital for most things which interface to C-level interfaces,
5872 like extensions working with sockets or databases or
5873 Perl-compatible regexes or whatever, and the need to fix
5874 this bug is the main reason that 0.7.1 was released so
5876 ** DEFGENERIC is now choosier about the methods it redefines, so that
5877 reLOADing a previously-LOADed file containing DEFGENERICs does
5878 the right thing now. Thus, the Lispy edit/reLOAD-a-little/test
5879 cycle now works as it should. (thanks to Alexey Dejneka)
5880 ** Bug 106 (types (COMPLEX FOO) where FOO is an obscure type) was
5881 fixed by Christophe Rhodes. (He actually submitted this patch
5882 months ago, and I delayed until after 0.7.0.)
5883 ** Bug 111 (internal compiler confusion about runtime checks on
5884 FUNCTION types) was fixed by Alexey Dejneka.
5885 * Some internal cleanups (getting rid of variables which aren't
5886 needed now that the byte interpreter is gone) caused the fasl
5887 file format number to change again.
5889 changes in sbcl-0.7.0 relative to sbcl-0.6.13:
5890 * major incompatible change: The default fasl file extension, i.e. the
5891 default extension for files produced by COMPILE-FILE, has changed
5892 to ".fasl", for all architectures. (No longer ".x86f" and ".axpf".)
5894 ** There are many changes in the implementation of the compiler.
5895 SBCL is now essentially a compiler-only implementation of ANSI
5896 Common Lisp. EVAL still "interprets" a few special cases, but
5897 almost all the interesting cases are handled by creating
5898 a LAMBDA expression, calling COMPILE on it, then calling
5899 FUNCALL on the result.
5900 ** The EVAL-WHEN code has been rewritten to be ANSI-compliant, and
5901 various related bugs (IR1-1, IR1-2, IR1-3, IR1-3a) have gone away.
5902 Since the code is newer, there might still be some new bugs
5903 (though not as many as before Martin Atzmueller's fixes:-). But
5904 the new code is substantially simpler and clearer, and hopefully
5905 any remaining bugs will be simpler, less fundamental, and more
5906 fixable then the bugs in the old code.
5907 ** The revised compiler is still a little unsteady on its feet.
5909 *** The debugging information it produces (particularly the names
5910 of FUNCTION objects) is sometimes much less useful than what
5911 the old compiler produced.
5912 *** The support for inlining FOO when you (DECLAIM (INLINE FOO))
5913 then do (DEFUN FOO ..) in a non-null lexical environment (e.g.
5914 within a MACROLET) has been temporarily weakened.
5915 ** There are new compiler optimizations for various functions:
5916 *** the sequence functions FIND, POSITION, FIND-IF, POSITION-IF,
5917 FIND-IF-NOT, POSITION-IF-NOT, and FILL
5918 *** the math functions TRUNCATE, FLOOR, and CEILING
5919 *** the function-of-all-trades COERCE
5920 Mostly these should be transparent, but there's one
5921 potentially-annoying problem (bug 117): when the compiler
5922 inline-expands a function and does type analysis on the result,
5923 it can create control paths which have type mismatches, and
5924 when it can't prove that those control paths aren't taken,
5925 it will issue WARNINGs about the type mismatches. This is
5926 a particular problem in practice for the new sequence functions.
5927 It's not clear how this should be fixed, and for now, a
5928 workaround is given in the entry for 117 in the BUGS file.
5929 ** (Because of the interaction between the two previous items --
5930 occasional inlining problems and new inline expansions -- some
5931 of the new sequence function optimizations won't really kick in
5932 completely until debugging information, and then inlining, are
5933 straightened out in some future version.)
5934 * minor incompatible changes:
5935 ** As part of a bug fix by Christophe Rhodes to DIRECTORY behavior,
5936 DIRECTORY no longer implicitly promotes NIL slots of its
5937 pathname argument to :WILD. In particular, when you ask for the
5938 contents of a directory (which you used to be able to do without
5939 explicit wildcards, e.g. (DIRECTORY "/tmp/")) you now need to use
5940 explicit wildcards, e.g. (DIRECTORY "/tmp/*.*").
5941 ** changes in behavior that ANSI explicitly defines to be
5942 implementation dependent:
5943 *** The new compiler-only implementation still conforms with ANSI,
5944 but acts a little different than before. Besides the obvious
5945 changes in performance tradeoffs (that the cost per form passed
5946 to EVAL has gone up, and the cost per form executed by EVAL
5947 has gone down), the behavior of the system changes a little
5948 because there are no longer any interpreted function objects.
5949 COMPILED-FUNCTION-P is now synonymous with FUNCTIONP, and
5950 e.g. doing COMPILE on the output of interactive DEFUN is
5952 *** The value of INTERNAL-TIME-UNITS-PER-SECOND has been increased
5954 *** The default for the USE list in MAKE-PACKAGE and DEFPACKAGE
5955 has changed from (:CL) to NIL.
5956 *** The CHAR-NAME of unprintable ASCII characters which, unlike
5957 e.g. #\Newline and #\Tab, don't have names specified in the
5958 ANSI Common Lisp standard, is now based on their ASCII symbolic
5959 names (#\Nul, #\Soh, #\Stx, etc.) The old CMU-CL-style names
5960 (#\Null, #\^a, #\^b, etc.) are still accepted by NAME-CHAR, but
5961 are no longer used for output.
5962 ** changes in internal implementation constants:
5963 *** The default value of *BYTES-CONSED-BETWEEN-GCS* has doubled, to
5964 4 million. (If your application spends a lot of time GCing and
5965 you have a lot of RAM, you might want to experiment with
5966 increasing it even more.)
5967 ** The SB-C-CALL package has been merged into the SB-ALIEN package.
5968 However, almost all old code should still continue to work without
5969 immediate update, as SB-C-CALL is now a (deprecated) nickname
5971 ** Old operator names in the style DEF-FOO are now deprecated in
5972 favor of new corresponding names DEFINE-FOO, for consistency with
5973 the naming convention used in the ANSI standard (DEFSTRUCT, DEFVAR,
5974 DEFINE-CONDITION, DEFINE-MODIFY-MACRO..). This mostly affects
5975 internal symbols, but a few supported extensions like
5976 SB-ALIEN:DEF-ALIEN-FUNCTION are also affected. (So e.g.
5977 DEF-ALIEN-FUNCTION becomes DEFINE-ALIEN-FUNCTION.)
5978 ** The debugger prompt sequence now goes "5]", "5[2]", "5[3]",
5979 etc. as you get deeper into recursive calls to the debugger
5980 command loop, instead of the old "5]", "5]]", "5]]]"
5981 sequence. (I was motivated to do this when squabbles between
5982 ILISP and SBCL left me very deeply nested in the debugger. In the
5983 short term, this change will probably provoke more ILISP/SBCL
5984 squabbles, but hopefully it will be an improvement in the long run.)
5985 ** SB-ALIEN:DEFINE-ALIEN-FUNCTION (also known by the old deprecated
5986 name DEF-ALIEN-FUNCTION) now does DECLAIM FTYPE for the defined
5987 function, since declaiming return types involving aliens is
5988 (1) annoyingly messy to do by hand and (2) vital to efficient
5989 compilation of code which calls such functions.
5990 ** SB-ALIEN:LOAD-FOREIGN and SB-ALIEN:LOAD-1-FOREIGN are no
5991 longer reexported by the SB-EXT package. They're solely useful
5992 for alien code, so it seems more logical that you should get
5993 them from the SB-ALIEN package, not in SB-EXT.
5994 ** :SB-CONSTRAIN-FLOAT-TYPE, :SB-PROPAGATE-FLOAT-TYPE, and
5995 :SB-PROPAGATE-FUN-TYPE are no longer considered to be optional
5996 features. Instead, the code that they used to control is always
5997 built into the system.
5998 * many other bug fixes
5999 ** DEFSTRUCT and DEFCLASS have been substantially updated to take
6000 advantage of the new EVAL-WHEN stuff and to clean them up in
6001 general, and they are now more ANSI-compliant in a number of
6002 ways. Martin Atzmueller is responsible for a lot of this.
6003 ** Besides the cleanups discussed above, Martin Atzmueller fixed
6005 *** fixes in READ-SEQUENCE and WRITE-SEQUENCE
6006 *** correct ERROR type for various file operations
6007 *** some fixes for Lisp streams
6008 *** DEFMETHOD syntax checking
6009 *** changing old weird representation of debug information as
6010 strings (which, among their other deficiencies, don't transform
6011 correctly when you rename packages, and don't change their
6012 print representation when you change things like *PACKAGE*
6013 and *PRINT-LENGTH*) to symbols and lists of symbols
6014 He also made several improvements and fixed several bugs in DESCRIBE.
6015 ** Alexey Dejneka fixed many bugs, including classic bugs and bugs he
6017 *** misbehavior of WRITE-STRING/WRITE-LINE
6018 *** LOOP over keys of a hash table, LOOP bugs 49b and 81 and 103,
6019 and several other LOOP problems as well
6020 *** DIRECTORY when similar filenames are present
6021 *** DEFGENERIC with :METHOD options
6022 *** bug 126, in (MAKE-STRING N :INITIAL-ELEMENT #\SPACE))
6023 *** bug in the optimization of ARRAY-ELEMENT-TYPE
6024 *** argument ordering in FIND with :TEST option
6025 *** mishandled package designator argument in APROPOS-LIST
6026 *** various problems in the backquote readmacro
6027 *** a bug in APROPOS
6028 *** probably some others that I'm not describing very well here,
6029 since the CVS log documents them by reference to sbcl-devel
6030 messages, and the SourceForge archives aren't working well.:-(
6031 ** Dan Barlow improved the Alpha port (and is making progress on the
6032 PPC port, for those of you who think different).
6033 ** Besides the DIRECTORY fixes and changes mentioned elsewhere,
6034 Christophe Rhodes cleaned up the system self-test scripts (in tests/*),
6035 contributed the optimization of FIND-IF-NOT and POSITION-IF-NOT, and
6036 continues to work on the SPARC port (for those of you in a position
6037 to look down upon our little PC-compatible boxes from a great height).
6038 ** PPRINT-LOGICAL-BLOCK now copies the *PRINT-LINES* value on entry
6039 and uses that copy, rather than the current dynamic value, when
6040 it's trying to decide whether to truncate output. Thus e.g.
6041 (let ((*print-lines* 50))
6042 (pprint-logical-block (stream nil)
6044 (let ((*print-lines* 8))
6045 (print (aref possiblybigthings i) stream)))))
6046 should now truncate the logical block only at 50 lines, instead of
6047 often truncating it at 8 lines, as it did before.
6048 * The doc/cmucl/ directory, containing old CMU CL documentation
6049 from the time of the fork, is no longer part of the base system.
6050 SourceForge has shut down its anonymous FTP service, and with it
6051 my original plan for distributing the old CMU CL documentation
6052 there. For now, if you need these files you can download an old
6053 SBCL source release and extract them from it.
6054 * The fasl file version number changed again, for dozens of reasons,
6055 some of which are apparent above.
6057 changes in sbcl-0.6.13 relative to sbcl-0.6.12:
6058 * a port to the Compaq/DEC Alpha CPU, thanks to Dan Barlow
6059 * Martin Atzmueller ported Tim Moore's marvellous CMU CL DISASSEMBLE
6060 patch, so that DISASSEMBLE output is much nicer.
6061 * The code in the SB-PROFILE package now seems reasonably stable.
6062 I still haven't decided what the final interface should look like
6063 (I'd like PROFILE to interact cleanly with TRACE, since both
6064 facilities use function encapsulation) but if you have a need
6065 for profiling now, you can probably use it successfully with
6066 the current CMU-CL-style interface.
6067 * Pathnames and *DEFAULT-DIRECTORY-DEFAULTS* are much more
6068 ANSI-compliant, thanks to various fixes and tests from Dan Barlow.
6069 Also, at Dan Barlow's suggestion, TRUENAME on a dangling symbolic
6070 link now returns the dangling link itself, and for similar
6071 reasons, TRUENAME on a cyclic symbolic link returns the cyclic
6072 link itself. (In these cases the old code signalled an error and
6073 looped endlessly, respectively.) Thus, DIRECTORY now works even
6074 in the presence of dangling and cyclic symbolic links.
6075 * Compiler trace output (the :TRACE-FILE option to COMPILE-FILE)
6076 is now a supported extension again, since the consensus on
6077 sbcl-devel was that it can be useful for ordinary development
6078 work, not just for debugging SBCL itself.
6079 * The default for SB-EXT:*DERIVE-FUNCTION-TYPES* has changed to
6080 NIL, i.e. ANSI behavior, i.e. the compiler now recognizes
6081 that currently-defined functions might be redefined later with
6082 different return types.
6083 * Hash tables can be printed readably, as inspired by CMU CL code
6084 of Eric Marsden and SBCL code of Martin Atzmueller.
6085 * better error handling in CLOS method combination, thanks to
6086 Martin Atzmueller porting Pierre Mai's CMU CL patches
6087 * more overflow fixes for >16Mbyte I/O buffers
6088 * A bug in READ has been fixed, so that now a single Ctrl-D
6089 character suffices to cause end-of-file on character streams.
6090 In particular, now you only need one Ctrl-D at the command
6091 line (not two) to exit SBCL.
6092 * fixed bug 26: ARRAY-DISPLACEMENT now returns (VALUES NIL 0) for
6094 * fixed bug 107 (reported as a CMU CL bug by Erik Naggum on
6095 comp.lang.lisp 2001-06-11): (WRITE #*101 :RADIX T :BASE 36) now
6096 does the right thing.
6097 * The implementation of some type tests, especially for CONDITION
6098 types, is now tidier and maybe faster, due to CMU CL code
6099 originally by Douglas Crosher, ported by Martin Atzmueller.
6100 * Some math functions have been fixed, and there are new
6101 optimizers for deriving the types of COERCE and ARRAY-ELEMENT-TYPE,
6102 thanks to Raymond Toy's work on CMU CL, ported by Martin Atzmueller.
6103 * (There are also some new optimizers in contrib/*-extras.lisp. Those
6104 aren't built into sbcl-0.6.13, but are a sneak preview of what's
6105 likely to be built into sbcl-0.7.0.)
6106 * A bug in COPY-READTABLE was fixed. (Joao Cachopo's patch to CMU
6107 CL, ported to SBCL by Martin Atzmueller)
6108 * DESCRIBE now gives more information in some cases. (Pierre Mai's
6109 patch to CMU CL, ported to SBCL by Martin Atzmueller)
6110 * Martin Atzmueller and Bill Newman fixed some bugs in INSPECT.
6111 * There's a new slam.sh hack to shorten the edit/compile/debug
6112 cycle for low-level changes to SBCL itself, and a new
6113 :SB-AFTER-XC-CORE target feature to control the generation of
6114 the after-xc.core file needed by slam.sh.
6115 * minor incompatible change: The ENTRY-POINTS &KEY argument to
6116 COMPILE-FILE is no longer supported, so that now every function
6117 gets an entry point, so that block compilation looks a little
6118 more like the plain vanilla ANSI section 3.2.2.3 scheme.
6119 * minor incompatible change: SB-EXT:GET-BYTES-CONSED now
6120 returns the number of bytes consed since the system started,
6121 rather than the number consed since the first time the function
6122 was called. (The new definition parallels ANSI functions like
6123 CL:GET-INTERNAL-RUN-TIME.)
6124 * minor incompatible change: The old CMU-CL-style DIRECTORY options,
6125 i.e. :ALL, :FOLLOW-LINKS, and :CHECK-FOR-SUBDIRS, are no longer
6126 supported. Now DIRECTORY always does the abstract Common-Lisp-y
6127 thing, i.e. :ALL T :FOLLOW-LINKS T :CHECK-FOR-SUBDIRS T.
6128 * Fasl file version numbers are now independent of the target CPU,
6129 since historically most system changes which required version
6130 number changes have affected all CPUs equally. Similarly,
6131 the byte fasl file version is now equal to the ordinary
6134 changes in sbcl-0.6.12 relative to sbcl-0.6.11:
6135 * incompatible change: The old SB-EXT:OPTIMIZE-INTERFACE declaration
6136 is no longer recognized. I apologize for this, because it was
6137 listed in SB-EXT as a supported extension, but I found that
6138 its existing behavior was poorly specified, as well as incorrectly
6139 specified, and it looked like too much of a mess to straighten it
6140 out. I have enough on my hands trying to get ANSI stuff to work..
6141 * many patches ported from CMU CL by Martin Atzmueller, with
6142 half a dozen bug fixes in pretty-printing and the debugger, and
6143 half a dozen others elsewhere
6144 * fixed bug 13: Floating point infinities are now supported again.
6145 They might still be a little bit flaky, but thanks to bug reports
6146 from Nathan Froyd and CMU CL patches from Raymond Toy they're not
6147 as flaky as they were.
6148 * The --noprogrammer command line option is now supported. (Its
6149 behavior is slightly different in detail from what the old man
6150 page claimed it would do, but it's still appropriate under the
6151 same circumstances that the man page talks about.)
6152 * The :SB-PROPAGATE-FLOAT-TYPE and :SB-PROPAGATE-FUN-TYPE features
6153 are now supported, and enabled by default. Thus, the compiler can
6154 handle many floating point and complex operations much less
6155 inefficiently. (Thus e.g. you can implement a complex FFT
6157 * The compiler now detects type mismatches between DECLAIM FTYPE
6158 and DEFUN better, and implements CHECK-TYPE more correctly, and
6159 SBCL builds under CMU CL again despite its non-ANSI EVAL-WHEN,
6160 thanks to patches from Martin Atzmueller.
6161 * various fixes to make the cross-compiler more portable to
6162 ANSI-conforming-but-different cross-compilation hosts (notably
6163 Lispworks for Windows, following bug reports from Arthur Lemmens)
6164 * A bug in READ-SEQUENCE for CONCATENATED-STREAM, and a gross
6165 ANSI noncompliance in DEFMACRO &KEY argument parsing, have been
6166 fixed thanks to Pierre Mai's CMU CL patches.
6167 * fixes to keep the system from overflowing internal counters when
6168 it tries to use i/o buffers larger than 16M bytes
6169 * fixed bug 45a: Various internal functions required to support
6170 complex special functions have been merged from CMU CL sources.
6171 (When I was first setting up SBCL, I misunderstood a compile-time
6172 conditional #-OLD-SPECFUN, and so accidentally deleted them.)
6173 * improved support for type intersection and union, fixing bug 12
6174 (e.g., now (SUBTYPEP 'KEYWORD 'SYMBOL)=>T,T) and some other
6175 more obscure bugs as well
6176 * some steps toward byte-compiling non-performance-critical
6177 parts of the system, courtesy of patches from Martin Atzmueller
6178 * Christophe Rhodes has made some debian packages of sbcl at
6179 <http://www-jcsu.jesus.cam.ac.uk/ftp/pub/debian/lisp>.
6180 From his sbcl-devel e-mail of 2001-04-08 they're not completely
6181 stable, but are nonetheless usable. When he's ready, I'd be happy
6182 to add them to the SourceForge "File Releases" section. (And if
6183 anyone wants to do RPMs or *BSD packages, they'd be welcome too.)
6184 * new fasl file format version number (because of changes in
6185 internal representation of (OR ..) types to accommodate the new
6186 support for (AND ..) types, among other things)
6188 changes in sbcl-0.6.11 relative to sbcl-0.6.10:
6189 * Martin Atzmueller pointed out that bugs #9 and #25 are gone in
6191 * bug 34 fixed by Martin Atzmueller: dumping/loading instances works
6193 * fixed bug 40: TYPEP, SUBTYPEP, UPGRADED-ARRAY-ELEMENT-TYPE,
6194 and UPGRADED-COMPLEX-PART-TYPE now work better with of compound
6195 types built from undefined types, e.g. '(VECTOR SOME-UNDEF-TYPE).
6196 * DESCRIBE now works on structure objects again.
6197 * Most function call argument type mismatches are now handled as
6198 STYLE-WARNINGs instead of full WARNINGs, since the compiler doesn't
6199 know whether the function will be redefined before the call is
6200 executed. (The compiler could flag local calls with full WARNINGs,
6201 as per the ANSI spec "3.2.2.3 Semantic Constraints", but right now
6202 it doesn't keep track of enough information to know whether calls
6203 are local in this sense.)
6204 * Compiler output is now more verbose, with messages truncated
6205 later than before. (There should be some supported way for users
6206 to override the default verbosity, but I haven't decided how to
6207 provide it yet, so this behavior is still controlled by the internal
6208 SB-C::*COMPILER-ERROR-PRINT-FOO* variables in
6209 src/compiler/ir1util.lisp.)
6210 * Fasl file format version numbers have increased again, because
6211 support for the Gray streams extension changes the layout of the
6212 system's STREAM objects.
6213 * The Gray subclassable streams extension now works, thanks to a
6214 patch from Martin Atzmueller.
6215 * The full LOAD-FOREIGN extension (not just the primitive
6216 LOAD-FOREIGN-1) now works, thanks to a patch from Martin Atzmueller.
6217 * The default behavior of RUN-PROGRAM has changed. Now, unlike CMU CL
6218 but like most other programs, it defaults to copying the Unix
6219 environment from the original process instead of starting the
6220 new process in an empty environment.
6221 * Extensions which manipulate the Unix environment now support
6222 an :ENVIRONMENT keyword option which doesn't smash case or
6223 do other bad things. The CMU-CL-style :ENV option is retained
6224 for porting convenience.
6225 * LOAD-FOREIGN (and LOAD-1-FOREIGN) now support logical pathnames,
6226 as per Daniel Barlow's suggestion and Martin Atzmueller's patch
6228 changes in sbcl-0.6.10 relative to sbcl-0.6.9:
6230 * A patch from Martin Atzmueller seems to have solved the SIGINT
6231 problem, and as far as we know, signal-handling now works cleanly.
6232 (If you find any new bugs, please report them!)
6233 * The system no longer defaults Lisp source file names to types
6234 ".l", ".cl", or ".lsp", but only to ".lisp".
6235 * The compiler no longer uses special default file extensions for
6236 byte-compiled code. (The ANSI definition of COMPILE-FILE-PATHNAME
6237 seems to expect a single default extension for all compiled code,
6238 and there's no compelling reason to try to stretch the standard
6239 to allow two different extensions.) Instead, byte-compiled files
6240 default to the same extension as native-compiled files.
6241 * Fasl file format version numbers have increased again, because
6242 a rearrangement of internal implementation packages made some
6243 dumped symbols in old fasl files unreadable in new cores.
6244 * DECLARE/DECLAIM/PROCLAIM logic is more nearly ANSI in general, with
6245 many fewer weird special cases.
6246 * Bug #17 (differing COMPILE-FILE behavior between logical and
6247 physical pathnames) has been fixed, and some related misbehavior too,
6248 thanks to a patch from Martin Atzmueller.
6249 * Bug #30 (reader problems) is gone, thanks to a CMU CL patch
6250 by Tim Moore, ported to SBCL by Martin Atzmueller.
6251 * Martin Atzmueller fixed several filesystem-related problems,
6252 including bug #36, in part by porting CMU CL patches, which were
6253 written in part by Paul Werkowski.
6254 * More compiler warnings in src/runtime/ are gone, thanks to
6255 more patches from Martin Atzmueller.
6256 * Martin Atzmueller pointed out that bug 37 was fixed by his patches
6259 changes in sbcl-0.6.9 relative to sbcl-0.6.8:
6261 * DESCRIBE now works on CONDITION objects.
6262 * The debugger now handles errors which arise when trying to print
6263 *DEBUG-CONDITION*, so that it's less likely to fall into infinite
6265 * The build system now uses an additional file, customize-target-features.lisp,
6266 to allow local modifications to the target *FEATURES* list. (The point of
6267 this is that now I can set up a custom configuration, e.g. with :SB-SHOW
6268 debugging features enabled, without having to worry about propagating it
6269 into everyone's system when I do a "cvs update".) When no
6270 customize-target-features.lisp file exists, the target *FEATURES* list
6271 should be constructed the same way as before.
6272 * fixed bugs in DEFCONSTANT ANSI-compatibility:
6273 ** DEFCONSTANT now tests reassignments using EQL, not EQUAL, in order to
6274 warn about behavior which is undefined under the ANSI spec. Note: This
6275 is specified by ANSI, but it's not very popular with programmers.
6276 If it causes you problems, take a look at the new SB-INT:DEFCONSTANT-EQX
6277 macro in the SBCL sources for an example of a workaround which you
6278 might use to make portable ANSI-standard code which does what you want.
6279 ** DEFCONSTANT's implementation is now based on EVAL-WHEN instead of on
6280 pre-ANSI IR1 translation magic, so it does the ANSI-specified thing
6281 when it's used as a non-toplevel form. (This is required in order
6282 to implement the DEFCONSTANT-EQX macro.)
6283 ** (DEFCONSTANT X 1) (DEFVAR X) (SETF X 2) no longer "works".
6284 ** Unfortunately, non-toplevel DEFCONSTANT forms can still do some
6285 funny things, due to bugs in the implementation of EVAL-WHEN
6286 (bug #IR1-3). This probably won't be fixed until 0.7.x. (Fortunately,
6287 non-toplevel DEFCONSTANTs are uncommon.)
6288 * The core file version number and fasl file version number have been
6289 incremented, because the old noncompliant DEFCONSTANT behavior involved
6290 calling functions which no longer exist, and because I also took the
6291 opportunity to chop an unsupported slot out of the DEBUG-SOURCE structure.
6292 * fixed bug 1 (error handling before read-eval-print loop starts), and
6293 redid debugger restarts and related debugger commands somewhat while
6295 ** The QUIT debugger command is gone, since it did something
6296 rather different than the SB-EXT:QUIT command, and since it never
6297 worked properly outside the main toplevel read/eval/print loop.
6298 Invoking the new TOPLEVEL restart provides the same functionality.
6299 ** The GO debugger command is also gone, since you can just invoke
6300 the CONTINUE restart directly instead.
6301 ** The TOP debugger command is also gone, since it's redundant with the
6302 FRAME 0 command, and since it interfered with abbreviations for the
6304 * The system now recovers better from non-PACKAGE values of the *PACKAGE*
6306 * The system now understands compound CONS types (e.g. (CONS FIXNUM T))
6307 as required by ANSI. (thanks to Douglas Crosher's CMU CL patches, with
6308 some porting work by Martin Atzmueller)
6309 * Martin Atzmueller reviewed the CMU CL mailing lists and came back
6310 with a boatload of patches which he ported to SBCL. Now that those
6312 ** The system tries to make sure that its low-priority messages
6313 are prefixed by semicolons, to help people who like to use
6314 syntax highlighting in their ILISP buffer. (This patch
6315 was originally due to Raymond Toy.)
6316 ** The system now optimizes INTEGER-LENGTH better, thanks to more
6317 patches originally written by Raymond Toy.
6318 ** The compiler understands coercion between single-value and
6319 multiple-VALUES type expressions better, getting rid of some very
6320 weird behavior, thanks to patches originally by Robert MacLachlan
6321 and Douglas Crosher.
6322 ** The system understands ANSI-style non-KEYWORD &KEY arguments in
6323 lambda lists, thanks to a patch originally by Pierre Mai.
6324 ** The system no longer bogusly warns about "abbreviated type
6326 ** The compiler gets less confused by inlining and RETURN-FROM,
6327 thanks to some patches originally by Tim Moore.
6328 ** The system no longer hangs when dumping circular lists to fasl
6329 files, thanks to a patch originally from Douglas Crosher.
6330 * Martin Atzmueller also fixed ROOM, so that it no longer fails with an
6331 undefined function error.
6332 * gave up on fixing bug 3 (forbidden-by-ANSI warning for type mismatch
6333 in structure slot initforms) for now, documented workaround instead:-|
6334 * fixed bug 4 (no WARNING for DECLAIM FTYPE of slot accessor function)
6335 * fixed bug 5: added stubs for various Gray stream functions called
6336 in the not-a-CL:STREAM case, so that even when Gray streams aren't
6337 installed, at least appropriate type errors are generated
6338 * fixed bug 8: better reporting of various PROGRAM-ERRORs
6339 * fixed bug 9: IGNORE and IGNORABLE now work reasonably and more
6340 consistently in DEFMETHOD forms.
6341 * removed bug 21 from BUGS, since Martin Atzmueller points out that
6342 it doesn't seem to affect SBCL after all
6343 * The C runtime system now builds with better optimization and many
6344 fewer warnings, thanks to lots of cleanups by Martin Atzmueller.
6346 changes in sbcl-0.6.8 relative to sbcl-0.6.7:
6348 * The system is now under CVS at SourceForge (instead of the
6349 CVS repository on my home machine).
6350 * The new signal handling code has been tweaked to treat register
6351 contents as (UNSIGNED-BYTE 32), as the old CMU CL code did,
6352 instead of (SIGNED-BYTE 32), as the C header files have it. (Code
6353 downstream, e.g. in debug-int.lisp, has implicit dependencies
6354 on the unsignedness of integer representation of machine words,
6355 and that caused the system to bomb out with infinite regress
6356 when trying to recover from type errors involving signed values,
6357 e.g. (BUTLAST '(1 2 3) -1).)
6358 * (BUTLAST NIL) and (NBUTLAST NIL) now return NIL as they should.
6359 (This was one of the bugs Peter Van Eynde reported back in July.)
6360 * The system now uses code inspired by Colin Walters' O(N)
6361 implementation of MAP (from the cmucl-imp@cons.org mailing
6362 list, 2 September 2000) when it can't use a DEFTRANSFORM to
6363 inline the MAP operation, and there is more than one
6364 sequence argument to the MAP call (so that it can't just
6365 do ETYPECASE once and for all based on the type of the
6366 single sequence argument). (The old non-inline implementation
6367 of the general M-argument sequence-of-length-N case required
6368 O(M*N*N) time when any of the sequence arguments were LISTs.)
6369 * The QUIT :UNIX-CODE keyword argument has been renamed to
6370 QUIT :UNIX-STATUS. (The old name still works, but is deprecated.)
6371 * Raymond Wiker's patches to port RUN-PROGRAM from CMU CL to SBCL
6373 * Raymond Wiker's patches to port dynamic loading from Linux to
6374 FreeBSD have been added.
6375 * The BUGS file is now more nearly up to date, thanks in large part
6376 to Martin Atzmueller's review of it.
6377 * The debugger now flushes standard output streams before it begins
6378 its output ("debugger invoked" and so forth).
6379 * The core version number and fasl file version number have both
6380 been incremented, because of incompatible changes in the layout
6382 * FINISH-OUTPUT is now called more consistently on QUIT. (It
6383 used to not be called for a saved Lisp image.)
6384 * Martin Atzmueller's version of a patch to fix a compiler crash,
6385 as posted on sbcl-devel 13 September 2000, has been installed.
6386 * Instead of installing Martin Atzmueller's patch for the
6387 compiler transform for SUBSEQ, I deleted the compiler transform,
6388 and transforms for some similar consing operations.
6389 * A bug in signal handling which kept TRACE from working on OpenBSD
6391 * added enough DEFTRANSFORMs to allow (SXHASH 'FOO) to be optimized
6392 away by constant folding
6393 * The system now defines its address space constants in one place
6394 (in the Lisp sources), and propagates them automatically elsewhere
6395 (through GENESIS and the sbcl.h file). Therefore, patching the
6396 address map is less unnecessarily tedious and error-prone. The
6397 Lisp names of address space constants have also been systematized.
6398 * CVS tags like dollar-Header-dollar have been removed from
6399 the sources, because they have never saved me trouble and
6400 they've been source of trouble working with patches and other
6401 diff-related operations.
6402 * fixed the PROG1-vs.-PROGN bug in HANDLER-BIND (reported by
6403 ole.rohne@cern.ch on cmucl-help@cons.org 2000-10-25)
6405 changes in sbcl-0.6.7 relative to sbcl-0.6.6:
6407 * The system has been ported to OpenBSD.
6408 * The system now compiles with a simple "sh make.sh" on the systems
6409 that it's supported on. I.e., now you no longer need to tweak
6410 text in the target-features.lisp-expr and symlinks in src/runtime/
6411 by hand, the make.sh takes care of it for you.
6412 * The system is no longer so grossly inefficient when compiling code
6413 involving vectors implemented as general (not simple) vectors (VECTOR T),
6414 so code which dares to use VECTOR-PUSH-EXTEND and FILL-POINTER, or
6415 which dares to use the various sequence functions on non-simple
6416 vectors, takes less of a performance hit.
6417 * There is now a primitive type predicate VECTOR-T-P
6418 to test for the (VECTOR T) type, so that e.g.
6419 (DEFUN FOO (V) (DECLARE (TYPE (VECTOR T) V)) (AREF V 3))
6420 can now be compiled with some semblance of efficiency. (The old code
6421 turned the type declaration into a full call to %TYPEP at runtime!)
6422 * AREF on (VECTOR T) is still not fast, since it's still compiled
6423 as a full call to SB-KERNEL:DATA-VECTOR-REF, but at least the
6424 ETYPECASE used in DATA-VECTOR-REF is now compiled reasonably
6425 efficiently. (The old version made full calls to SUBTYPEP at runtime!)
6426 * (MAKE-ARRAY 12 :FILL-POINTER T) is now executed less inefficiently,
6427 without making full calls to SUBTYPEP at runtime.
6428 (Some analogous efficiency issues for non-simple vectors specialized to
6429 element types other than T, or for non-simple multidimensional arrays,
6430 have not been addressed. They could almost certainly be handled the
6431 same way if anyone is motivated to do so.)
6432 * The changes in array handling break binary compatibility, so
6433 *BACKEND-FASL-FILE-VERSION* has been bumped to 4.
6434 * (TYPEP (MAKE-ARRAY 12 :FILL-POINTER 4) 'VECTOR) now returns (VALUES T)
6435 instead of (VALUES T T).
6436 * By following the instructions that Dan Barlow posted to sbcl-devel
6437 on 2 July 2000, I was able to enable primitive dynamic object
6438 file loading code for Linux. The full-blown CMU CL LOAD-FOREIGN
6439 functionality is not implemented (since it calls ld to resolve
6440 library references automatically, requiring RUN-PROGRAM for its
6441 implementation), but a simpler SB-EXT:LOAD-1-FOREIGN (which doesn't
6442 try to resolve library references) is now supported.
6443 * The system now flushes the standard output streams when it terminates,
6444 unless QUIT is used with the RECKLESSLY-P option set. It also flushes
6445 them at several other probably-convenient times, e.g. in each pass of
6446 the toplevel read-eval-print loop, and after evaluating a form given
6447 as an "--eval" command-line option. (These changes were motivated by a
6448 discussion of stream flushing issues on cmucl-imp in August 2000.)
6449 * The source transform for TYPEP of array types no longer assumes
6450 that an array whose element type is a not-yet-defined type
6451 is implemented as an array of T, but instead punts, so that the
6452 type will be interpreted at runtime.
6453 * There is now some support for cross-compiling in make.sh: each of
6454 the phases of make.sh has its own script. (This should be transparent
6455 to people doing ordinary, non-cross-compile builds.)
6456 * Since my laptop doesn't have hundreds of megabytes of memory like
6457 my desktop machine, I became more motivated to do some items on
6458 my to-do list in order to reduce the size of the system a little:
6459 ** Arrange for various needed-only-at-cold-init things to be
6460 uninterned after cold init. To support this, those things have
6461 been renamed from FOO and *FOO* to !FOO and *!FOO* (i.e., all
6462 symbols with such names are now uninterned after cold init).
6463 ** Bind SB!C::*TOP-LEVEL-LAMBDA-MAX* to a nonzero value when building
6464 fasl files for cold load.
6465 ** Remove the old compiler structure pooling code (which used to
6466 be conditional on the target feature :SB-ALLOC) completely.
6467 ** Redo the representation of some data in cold init to be more compact.
6468 (I also looked into supporting byte compiled code at bootstrap time,
6469 which would probably reduce the size of the system a lot, but that
6470 looked too complicated, so I punted for now.)
6471 * The maximum signal nesting depth in the src/runtime/ support code has
6472 been reduced from 4096 to 256. (I don't know any reason for the very
6473 large old value. If the new smaller value turns out to break something,
6474 I'll probably just bump it back up.)
6475 * PPRINT-LOGICAL-BLOCK is now pickier about the types of its arguments,
6477 * Many, many bugs reported by Peter Van Eynde have been added to
6478 the BUGS list; some have even been fixed.
6479 * While enabling dynamic object file loading, I tried to make the
6480 code easier to understand, renaming various functions and variables
6481 with less ambiguous names, and changing some function calling
6482 conventions to be Lispier (e.g. returning NIL instead of 0 for failure).
6483 * While trying to figure out how to do the OpenBSD port, I tried to
6484 clean up some of the code in src/runtime/. In particular, I dropped
6485 support for non-POSIX signal handling, added various comments,
6486 tweaked the code to reduce the number of compilation warnings, and
6487 renamed some files to increase consistency.
6488 * To support the new automatic configuration functionality in make.sh,
6489 the source file target-features.lisp-expr has been replaced with the
6490 source file base-target-features.lisp-expr and the machine-generated
6491 file local-target-features.lisp-expr.
6492 * fixed a stupid quoting error in make.sh so that using CMU CL
6493 "lisp -batch" as cross-compilation host works again
6495 changes in sbcl-0.6.6 relative to sbcl-0.6.5:
6497 * DESCRIBE no longer tries to call itself recursively to describe
6498 bound/fbound values, so that it no longer fails on symbols which are
6499 bound to themselves (like keywords, T, and NIL).
6500 * DESCRIBE now works on generic functions.
6501 * The printer now prints less-screwed-up representations of closures
6502 (not naively trying to bogusly use the %FUNCTION-NAME accessor on them).
6503 * A private symbol is used instead of the :EMPTY keyword previously
6504 used to mark empty slots in hash tables. Thus
6505 (DEFVAR *HT* (MAKE-HASH-TABLE))
6506 (SETF (GETHASH :EMPTY *HT*) :EMPTY)
6507 (MAPHASH (LAMBDA (K V) (FORMAT T "~&~S ~S~%" K V)))
6508 now does what ANSI says that it should. (You can still get
6509 similar noncompliant behavior if bang on the hash table
6510 implementation with all the symbols you get back from
6511 DO-ALL-SYMBOLS, but at least that's a little harder to do.)
6512 This breaks binary compatibility, since tests for equality to
6513 :EMPTY are wired into things like the macroexpansion of
6514 WITH-HASH-TABLE-ITERATOR in FASL files produced by earlier
6516 * There's now a minimal placeholder implementation for CL:STEP,
6517 as required by ANSI.
6518 * An obscure bug in the interaction of the normal compiler, the byte
6519 compiler, inlining, and structure predicates has been patched
6520 by setting the flags for the DEFTRANSFORM of %INSTANCE-TYPEP as
6521 :WHEN :BOTH (as per Raymond Toy's suggestion on the cmucl-imp@cons.org
6523 * Missing ordinary arguments in a macro call are now detected even
6524 when the macro lambda list contains &KEY or &REST.
6525 * The debugger no longer complains about encountering the top of the
6526 stack when you type "FRAME 0" to explicitly instruct it to go to
6527 the top of the stack. And it now prints the frame you request even
6528 if it's the current frame (instead of saying "You are here.").
6529 * As specified by ANSI, the system now always prints keywords
6530 as #\: followed by SYMBOL-NAME, even when *PACKAGE* is the
6532 * The default initial SIZE of HASH-TABLEs is now smaller.
6533 * Type information from CLOS class dispatch is now propagated
6534 into DEFMETHOD bodies, so that e.g.
6535 (DEFMETHOD FOO ((X SINGLE-FLOAT))
6537 is now basically equivalent to
6538 (DEFMETHOD FOO ((X SINGLE-FLOAT))
6539 (DECLARE (TYPE SINGLE-FLOAT X))
6541 and the compiler can compile (+ X 123.0) as a SINGLE-FLOAT-only
6542 operation, without having to do run-time type dispatch.
6543 * The macroexpansion of DEFMETHOD has been tweaked so that it has
6544 reasonable behavior when arguments are declared IGNORE or IGNORABLE.
6545 * Since I don't seem to be making big file reorganizations very often
6546 any more (and since my archive of sbcl-x.y.zv.tar.bz2 snapshots
6547 is overflowing my ability to conveniently back them up), I've finally
6548 checked the system into CVS. (The CVS repository is on my home system,
6549 not at SourceForge -- putting it on SourceForge might come later.)
6550 * SB-EXT:*GC-NOTIFY-STREAM* has been added, to control where the
6551 high-level GC-NOTIFY-FOO functions send their output. (There's
6552 still very little control of where low-level verbose GC functions
6553 send their output.) The SB-EXT:*GC-VERBOSE* variable now controls
6554 less than it used to -- the GC-NOTIFY-FOO functions are now under
6555 the control of *GC-NOTIFY-STREAM*, not *GC-VERBOSE*.
6556 * The system now stores the version string (LISP-IMPLEMENTATION-VERSION)
6557 in only one place in the source code, and propagates it automatically
6558 everywhere that it's needed. Thus e.g. when I bump the version from
6559 0.6.6 to 0.6.7, I'll only need to modify the sources in one place.
6560 * The C source files now include boilerplate legalese and documentation
6561 at the head of each file (just as the Lisp source files already did).
6562 * At Dan Barlow's suggestion, the hyperlink from the SBCL website
6563 to his page will be replaced with a link to his new CLiki service.
6565 changes in sbcl-0.6.5 relative to sbcl-0.6.4:
6567 * Raymond Wiker's patches to port the system to FreeBSD have been merged.
6568 * The build process now looks for GNU make under the default name "gmake",
6569 instead of "make" as it used to. If GNU make is not available as "gmake"
6570 on your system, you can change this default behavior by setting the
6571 GNUMAKE environment variable.
6572 * Replace #+SB-DOC with #!+SB-DOC in seq.lisp so that the system
6573 can build without error under CMU CL.
6575 changes in sbcl-0.6.4 relative to sbcl-0.6.3:
6577 * There is now a partial SBCL user manual (with some new text and some
6578 text cribbed from the CMU CL manual).
6579 * The beginnings of a profiler have been added (starting with the
6580 CMU CL profiler and simplifying and cleaning up). Eventually the
6581 main interface should be through the TRACE macro, but for now,
6582 it's still accessed through vaguely CMU-CL-style functions and macros
6583 exported from the package SB-PROFILE.
6584 * Some problems left over from porting CMU CL to the new
6585 cross-compilation bootstrap process have been cleaned up:
6586 ** DISASSEMBLE now works. (There was a problem in using DEFMACRO
6587 instead of SB!XC:DEFMACRO, compounded by an oversight on my
6588 part when getting rid of the compiler *BACKEND* stuff.)
6589 ** The value of *NULL-TYPE* was screwed up, because it was
6590 being initialized before the type system knew the final
6591 definition of the 'NULL type. This screwed up several key
6592 optimizations in the compiler, causing inefficiency in all sorts
6593 of places. (I found it because I wanted to understand why
6594 GET-INTERNAL-RUN-TIME was consing.)
6595 * fixed a bug in DEFGENERIC which was causing it to overwrite preexisting
6596 PROCLAIM FTYPE information. Unfortunately this broke binary
6597 compatibility again, since now the forms output by DEFGENERIC
6598 to refer to functions which didn't exist in 0.6.3.
6599 * added declarations so that SB-PCL::USE-CACHING-DFUN-P
6600 can use the new (as of 0.6.3) transform for SOME into MAP into
6602 * changed (MOD 1000000) type declarations for Linux timeval.tv_usec slot
6603 values to (INTEGER 0 1000000), so that the time code will no longer
6604 occasionally get blown up by Linux returning 1000000 microseconds
6605 * PRINT-UNREADABLE-OBJECT has been tweaked to make the spacing of
6606 its output conform to the ANSI spec. (Alas, this makes its output
6607 uglier in the :TYPE T :IDENTITY NIL case, but them's the breaks.)
6608 * A full call to MAP NIL with a single sequence argument no longer conses.
6609 * fixes to problems pointed out by Martin Atzmueller:
6610 * The manual page no longer talks about multiprocessing as though
6611 it were currently supported.
6612 * The ILISP support patches have been removed from the distribution,
6613 because as of version 5.10.1, ILISP now supports SBCL without us
6614 having to maintain patches.
6615 * added a modified version of Raymond Toy's recent CMU CL patch for
6616 EQUALP comparison of HASH-TABLE
6618 changes in sbcl-0.6.3 relative to sbcl-0.6.2:
6620 * The system still can't cross-compile itself with
6621 *TYPE-SYSTEM-INITIALIZED* (and all the consistency checks that
6622 entails), but at least it can compile more of itself that way
6623 than it used to be able to, and various buglets which were uncovered
6624 by trying to cross-compile itself that way have now been fixed.
6625 * This release breaks binary compatibility again. This time
6626 at least I've incremented the FASL file format version to 2, so that the
6627 problem can be detected reliably instead of just causing weird errors.
6628 * various new style warnings:
6629 ** using DEFUN, DEFMETHOD, or DEFGENERIC to overwrite an old definition
6630 ** using the deprecated EVAL/LOAD/COMPILE situation names in EVAL-WHEN
6631 ** using the lexical binding of a variable named in the *FOO* style
6632 * DESCRIBE has been substantially rewritten. It now calls DESCRIBE-OBJECT
6633 as specified by ANSI.
6634 * *RANDOM-STATE* is no longer automatically initialized from
6635 (GET-UNIVERSAL-TIME), but instead from a constant seed. Thus, the
6636 default behavior of the system is to repeat its behavior every time
6637 it's run. If you'd like to change this behavior, you can always
6638 explicitly set the seed from (GET-UNIVERSAL-TIME); whereas under the
6639 old convention there was no comparably easy way to get the system to
6640 repeat its behavior every time it was run.
6641 * Support for the pre-CLTL2 interpretation of FUNCTION declarations as
6642 FTYPE declarations has been removed, in favor of their ANSI
6643 interpretation as TYPE FUNCTION declarations. (See p. 228 of CLTL2.)
6644 * The quantifiers SOME, EVERY, NOTANY, and NOTEVERY no longer cons when
6645 the types of their sequence arguments can be determined at compile time.
6646 This is done through a new open code expansion for MAP which eliminates
6647 consing for (MAP NIL ..), and reduces consing otherwise, when sequence
6648 argument types can be determined at compile time.
6649 * The optimizer now transforms COERCE into an identity operation when it
6650 can prove that the coerced object is already of the correct type. (This
6651 can be a win for machine generated code, including the output of other
6652 optimization transforms, such as the MAP transform above.)
6653 * Credit information has been moved from source file headers into CREDITS.
6654 * Source file headers have been made more standard.
6655 * The CASE macro now compiles without complaining even when it has
6658 changes in sbcl-0.6.2 relative to sbcl-0.6.1:
6660 * (Note that the way that the PCL macroexpansions were rewritten
6661 to accommodate the change in DEFGENERIC below breaks binary
6662 compatibility. That is, fasl files compiled under sbcl-0.6.1 may
6663 not run under sbcl-0.6.2. Once we get out of alpha releases,
6664 i.e. hit release 1.0.0, we'll probably try to maintain binary
6665 compatibility between maintenance releases, e.g. between sbcl-1.4.3
6666 and sbcl-1.4.4. Until then, however, it might be fairly common
6667 for maintenance releases to break binary compatibility.)
6668 * A bug in the calculation of WARNINGS-P and FAILURE-P in COMPILE-FILE
6670 * The reporting of unhandled signals has been changed to print some
6671 explanatory text as well as the report form. (Previously only
6672 the report form was printed.)
6673 * The macroexpansion for DEFGENERIC now DECLAIMs the function that
6674 it defines, so that the compiler no longer issues undefined function
6675 warnings for compiled-but-not-yet-loaded generic functions.
6676 * The CLTL-style "LISP" and "USER" nicknames for the "COMMON-LISP"
6677 and "COMMON-LISP-USER" packages have been removed. Now only the "CL"
6678 and "CL-USER" standard nicknames from the "11.1.2 Standardized Packages"
6679 section of the ANSI spec are supported.
6680 * The "" nickname for the "KEYWORD" package has been removed.
6681 The reader still handles symbol tokens which begin with a package marker
6682 as keywords, but it doesn't expose its mechanism for doing so in the
6683 (PACKAGE-NICKNAMES (FIND-PACKAGE "KEYWORD")) list.
6684 * The system now issues STYLE-WARNINGs for contradictory TYPE
6685 proclamations. (Warnings for contradictory FTYPE proclamations would
6686 be nice too, but those can't be done usefully unless the type system
6687 is made smarter about FUNCTION types.)
6688 * The names of source files "*host-*.lisp" and "*target-*.lisp" have been
6689 systematized, so that "*target-*.lisp is supposed to exist only on the
6690 target and imply that there's a related file which exists on the
6691 host, and *host-*.lisp is supposed to exist only on the host and imply
6692 that there's a related file which exists on the target. This involves a
6693 lot of renaming. Hopefully the acute confusion caused by the renaming
6694 will be justified by the reduction in chronic confusion..
6695 ** runtime-type.lisp -> early-target-type.lisp
6696 ** target-type.lisp -> late-target-type.lisp
6697 ** early-host-format.lisp -> early-format.lisp
6698 ** late-host-format.lisp -> late-format.lisp
6699 ** host-error.lisp -> misc-error.lisp
6700 ** early-error.lisp -> early-target-error.lisp
6701 ** late-error.lisp -> late-target-error.lisp
6702 ** host-defboot.lisp -> early-defboot.lisp
6703 ** code/misc.lisp -> code/target-misc.lisp
6704 ** code/host-misc.lisp -> code/misc.lisp
6705 ** code/numbers.lisp -> code/target-numbers.lisp
6706 ** code/early-numbers.lisp -> numbers.lisp
6707 ** early-host-type.lisp -> early-type.lisp
6708 ** late-host-type.lisp -> late-type.lisp
6709 ** host-typep.lisp -> typep.lisp
6710 ** load.lisp -> target-load.lisp
6711 ** host-load.lisp -> load.lisp
6712 ** host-disassem.lisp -> disassem.lisp
6713 ** host-insts.lisp -> insts.lisp
6714 ** byte-comp.lisp -> target-byte-comp.lisp
6715 ** host-byte-comp.lisp -> byte-comp.lisp
6716 ** host-signal.lisp -> signal.lisp
6717 ** host-defstruct.lisp -> defstruct.lisp
6718 ** late-target-type.lisp -> deftypes-for-target.lisp
6719 Furthermore, several other previously target-only files foo.lisp (e.g.
6720 hash-table.lisp and random.lisp) have been split into a target-and-host
6721 foo.lisp file and a target-only target-foo.lisp file, with their key type
6722 definitions in the target-and-host part, so that the cross-compiler will
6723 know more about target types.
6724 * DEFSTRUCT BACKEND, and the BACKEND-valued *BACKEND* variable, have
6725 gone away. In their place are various *BACKEND-FOO* variables
6726 corresponding to the slots of the old structure.
6727 * A bug which caused the SB-COLD bootstrap-time package to be propagated
6728 into the target SBCL has been fixed.
6729 * The chill.lisp system for loading cold code into a running SBCL
6731 * Support for the CMU CL "scavenger hook" extension has been removed.
6732 (It was undocumented and unused in the CMU CL sources that SBCL was
6733 derived from, and stale in sbcl-0.6.1.)
6734 * Various errors in the cross-compiler type system were detected
6735 by running the cross-compiler with *TYPE-SYSTEM-INITIALIZED*
6736 (enabling various consistency checks). Many of them were fixed,
6737 but some hard problems remain, so the compiler is back to
6738 running without *TYPE-SYSTEM-INITIALIZED* for now.
6739 * As part of the cross-compiler type system cleanup, I implemented
6740 DEF!TYPE and got rid of early-ugly-duplicates.lisp.
6741 * I have started adding UNCROSS calls throughout the type system
6742 and the INFO database. (Thus perhaps eventually the blanket UNCROSS
6743 on cross-compiler input files will be able to go away, and various
6745 * CONSTANTP now returns true for quoted forms (as explicitly required
6748 changes in sbcl-0.6.1 relative to sbcl-0.6.0:
6750 * changed build optimization from (SAFETY 1) to (SAFETY 3) as a short-term
6751 fix for various type-unsafety bugs, e.g. failures with (LENGTH 123) and
6752 (MAKE-LIST -1). In the longer term, it ought to become true
6753 that declarations are assertions even at SAFETY 1. For now, it's not
6754 quite true even at SAFETY 3, but it's at least more nearly true..
6755 (Note that this change seems to increases the size of the system by
6756 O(5%) and to decrease the speed of the compiler by 20% or more.)
6757 * changed ALIEN printing to be much more abbreviated, as a short-term fix
6758 for the problem of printing dozens of lines of distracting information
6759 about low-level system machinery as part of the top stack frame
6760 on entry to the debugger when an undefined function was called.
6761 * tweaked the debugger's use of WITH-STANDARD-IO-SYNTAX so that *PACKAGE*
6762 is not reset to COMMON-LISP-USER.
6763 * Compilation of stuff related to dyncount.lisp has been made conditional
6764 on the :SB-DYNCOUNT target feature, so that the ordinary core system is
6765 smaller. The various dyncount-related symbols have been moved into
6766 a new "SB-DYNCOUNT" package.
6767 * tty-inspect.lisp has been renamed to inspect.lisp.
6768 * unix-glibc2.lisp has been renamed to unix.lisp, and the :GLIBC2
6769 feature has gone away. (When we eventually port to other flavors of
6770 libc and/or Unix, we'll try to make the differences between flavors
6771 invisible at the user level.)
6772 * Various other *FEATURES* tags, and/or their associated conditionals,
6773 have been removed if obsolescent, or given better documentation, or
6774 sometimes given more-mnemonic names.
6776 changes in sbcl-0.6.0 relative to sbcl-0.5.0:
6778 * tidied up "make.sh" script
6779 * tidied up system directory structure
6780 * better "clean.sh" behavior
6781 * added doc/FOR-CMUCL-DEVELOPERS
6782 * many many small tweaks to output format, e.g. removing possibly-confusing
6783 trailing #\. character in DESCRIBE-INSTANCE
6784 * (EQUALP #\A 'A) no longer signals an error.
6785 * new hashing code, including EQUALP hashing
6786 * tidied up Lisp initialization and toplevel
6787 * initialization files (e.g. /etc/sbclrc and $HOME/.sbclrc)
6788 * command line argument processing
6789 * added POSIX-GETENV function to deal with Unix-ish environment variables
6790 * more-Unixy handling of *STANDARD-INPUT* and other Lisp streams, e.g.
6791 terminating SBCL on EOF
6792 * non-verbose GC by default
6793 * There is no more "sbcl" shell script; the sbcl file is now the C
6794 runtime executable (just like CMU CL).
6795 * removed some unused fops, e.g. FOP-UNIFORM-VECTOR, FOP-CHARACTER, and
6797 * tweaked debug-info.lisp and debug-int.lisp to make the debugger store
6798 symbol and package information as Lisp native symbol and package objects
6799 instead of strings naming symbols and strings naming packages. This way,
6800 whenever packages are renamed (as in warm init), debug information is
6801 transformed along with everything else.
6802 * tweaked the optimization policy declarations which control the building
6803 of SBCL itself. Now, among other things, the system no longer saves
6804 source location debugging information. (This helps two problems at once
6805 by reducing SBCL size and by keeping SBCL from trying to look for its
6806 sources -- which may not exist -- when reporting errors.)
6807 * added src/cold/chill.lisp, to let SBCL read its own cold sources for
6808 debugging and testing purposes
6809 * cleaned up printing, making the printer call PRINT-OBJECT for
6810 instances, and using PRINT-UNREADABLE-OBJECT for most PRINT-OBJECT
6811 methods, giving nearly-ANSI behavior
6812 * converted almost all special variables to use *FOO* naming convention
6813 * deleted PARSE-TIME functionality, since it can be done portably
6814 * moved some files out of cold init into warm init
6815 * deleted DEFUN UNDEFINED-VALUE, replaced (UNDEFINED-VALUE) forms
6817 * regularized formatting of source files
6818 * added an install.sh script
6819 * fixed ridiculous memory usage of cross-compiler by making
6820 compiler/alloc.lisp not try to do pooling unless it can hook
6821 itself into the GC of the cross-compilation host. Now the system
6822 builds nicely on my old laptop.
6823 * added :SB-ALLOC in target-features.lisp-expr
6824 * deleted mention of :ANSI-DOC from target-features.lisp-expr (since it
6825 was not implemented)
6826 * re-did condition handling and note reporting in the compiler. Notes
6827 are no longer handled by signalling conditions. Style warnings
6828 and warnings are handled more correctly and reported in such a way
6829 that it's easy to find one or the other in your output (so that you
6830 can e.g. figure out which of many problems caused COMPILE-FILE to
6832 * changed the severity of several compiler warnings from full WARNING
6833 to STYLE-WARNING in order to conform with the ANSI spec; also changed
6834 compiler note reporting so that it doesn't use the condition system
6835 at all (and hence affects neither FAILURE-P nor WARNINGS-P in the
6836 COMPILE-FILE command)
6837 * made PROCLAIM and DECLAIM conform to ANSI. PROCLAIM is now an ordinary
6838 function. As a consequence, START-BLOCK and END-BLOCK declarations are
6839 no longer supported, since their implementation was deeply intertwingled
6840 with the magical, non-ANSI treatment that PROCLAIM received in CMU CL.
6841 * removed bogus "support" for compiler macros named (SETF FOO), and
6842 removed the compiler macro for SETF INFO (but only after making a fool
6843 of myself on the cmucl-imp mailing list by posting a bogus patch for
6844 DEFINE-COMPILER-MACRO..)
6845 * Compiled files containing forms which have side effects on the Lisp
6846 reader (such as DEFPACKAGE forms) are now handled more correctly.
6847 (Compiler queuing of top level lambdas has been suppressed by setting
6848 *TOP-LEVEL-LAMBDA-MAX* to 0. )
6849 * deleted various currently-unused source files, e.g. gengc.lisp. They
6850 may be added back at some point e.g. when porting to other architectures,
6851 but until they are it's distracting to distribute them and to try to
6853 * deleted "UNCROSS couldn't recurse through.." style warnings, since
6854 there were so many of them they're just distractions, and UNCROSS is
6855 known to be able to handle the current sources
6856 * moved PROFILE functionality into TRACE, so that it will be clear
6857 how the wrapping and unwrapping of functions when you profile them
6858 interacts with the wrapping and unwrapping of functions when you
6859 trace them. (Actually, the functionality isn't there yet, but at least
6860 the interface specification is there. Hopefully, the functionality will
6861 arrive with some future maintenance release.)
6862 * removed host-oops.lisp
6863 * changed signature of QUIT function to allow UNIX-CODE argument
6864 * fixed READ-SEQUENCE bug
6865 * tweaked verbose GC output so that it looks more like the progress
6866 output that ANSI specifies for functions like LOAD
6867 * set up the system on sourceforge.com, with home pages, mailing lists, etc.
6868 * added <http://sbcl.sourceforge.com> to the banner information printed by