;;;; -*- coding: utf-8; fill-column: 78 -*-
+changes relative to sbcl-1.0.53:
+ * minor incompatible changes:
+ ** RENAME-FILE on a symbolic links used to rename the linked-to file instead
+ of the link.
+ ** DELETE-DIRECTORY on symbolic link to a directory used to delete the
+ directory, but now signal an error instead. Use TRUENAME to resolve
+ the pathname if you wish to delete the linked directory, and DELETE-FILE
+ if you wish to delete the
+ * enchancement: on CHENEYGC targets, SB-KERNEL:MAKE-LISP-OBJ now does
+ the same validation of pointer objects as GENCGC does, instead of a
+ comparatively weak bounds-check against the heap spaces.
+ * enhancement: on win32, ABS of complex floats guards better against
+ overflows. (lp#888410)
+ * enhancement: RUN-PROGRAM now distinguishes exec() failing from child
+ process exiting with code 1. (lp#676987)
+ * bug fix: on 64-bit targets, atomic-incf/aref does index computation
+ correctly, even on wide-fixnum builds. (lp#887220)
+ * bug fix: (directory "foo/*/*.*") did not follow symlinks in foo/ that
+ resolved to directories.
+ * bug fix: SB-KERNEL:MAKE-LISP-OBJ on GENCGC no longer categorically
+ refuses to create SIMPLE-FUN objects.
+ * bug fix: type mismatch when assigning to lexical variables no longer
+ result in fasl-dumping internal type objects. (lp#890750)
+ * bug fix: type mismatch on (setf aref) and function return values no
+ longer result in fasl-dumping internal type objects.
+ * bug fix: SB-BSD-SOCKETS foreign memory leaks
+ ** GET-PROTOCOL-BY-NAME had a significant leak.
+ ** GET-HOST-BY-NAME and GET-HOST-BY-ADDRESS leaked 1 word per call on
+ systems providing getaddrinfo().
+
+changes in sbcl-1.0.53 relative to sbcl-1.0.52:
+ * enhancement: on 64-bit targets, in src/compiler/generic/early-vm.lisp,
+ the parameter n-fixnum-tag-bits may now vary from 1 (fixnum =
+ (signed-byte 63)) to 3 (fixnum = (signed-byte 61)) at build-time.
+ * enhancement: SB-EXT:WAIT-FOR allows waiting for arbitrary events.
+ * minor(?) incompatible(?) change: The default fixnum width on 64-bit
+ targets is now 63 bits (up from 61).
+ * enhancement: DESCRIBE now reports a lambda-list and source location
+ for complext setf-expanders.
+ * bug fix: PUSH, PUSHNEW, POP, REMF, INCF, DECF, DEFINE-MODIFY-MACRO,
+ GETF, LOGBITP, LDB, and MASK-FIELD now arrange for non-primary values
+ of multiple-valued places to be set to NIL, instead of signalling an
+ error (per a careful reading of CLHS 5.1.2.3).
+ * bug fix: floating-point traps now work on darwin/x86 and /x86-64.
+ * bug fix: repair crash in x86oid darwin signal handling emulation
+ when built with certain compilers.
+ * bug fix: SB-ROTATE-BYTE misrotated to the right when using constant
+ rotation arguments on x86-64. (lp#882151)
+ * bug fix: low-level control flow optimisations could result in bogus
+ code in functions with tail and non-tail calls to local functions on
+ x86oids. (lp#883500)
+ * bug fix: on SPARC/:sb-unicode, avoid crashing the assembler by trying
+ to emit literal characters > (code-char 4095), for comparisons with
+ constant characters.
+ * bug fix: ROOM reported only the low 32 bits of dynamic space usage
+ on 64 bit platforms. (lp#881445)
+ * bug fix: DELETE-FILE did not MERGE-PATHNAMES, making it possible to
+ delete the wrong file when using relative pathnames. (lp#882877)
+ * bug fix: optimized SEARCH of vectors-on-vectors mishandled zero-length
+ sequences and :KEY NIL.
+
+changes in sbcl-1.0.52 relative to sbcl-1.0.51:
+ * enhancement: ASDF has been updated to version 2.017.
+ * enhancement: the --core command line option now accepts binaries with
+ an embedded core.
+ * enhancement: when built with :sb-core-compression, core files (regular
+ or executable) can be compressed with zlib. Use the :COMPRESSION
+ argument to SAVE-LISP-AND-DIE to specify a compression level.
+ * enhancement: --[no-]merge-core-pages determines whether the runtime
+ hints the operating system that identical core pages between SBCL
+ processes should share the same physical memory. Default is to only
+ enable this for compressed cores.
+ * optimization: SLEEP no longer conses.
+ * optimization: *PRINT-PRETTY* no longer slows down printing of strings
+ or bit-vectors when using the standard pretty-print dispatch table.
+ * bug fix: non-function FTYPE declarations no longer cause a compiler-error.
+ (lp#738464)
+ * bug fix: compiler-errors causes by MEMBER types in conjunction with with
+ AREF, CHAR, etc. (lp#826971)
+ * bug fix: compiler-errors causes by integer arguments with composed of
+ multiple ranges to ARRAY-IN-BOUNDS-P. (lp#826970)
+ * bug fix: ,@ and ,. now signal a read-time error for certain non-list
+ expressions. (lp#770184)
+ * bug fix: complex single float literals are correctly aligned when used
+ as arguments of arithmetic operators.
+ * bug fix: on 32-bit platforms, rounding of double floats larger than a
+ fixnum is correct. (reported by Peter Keller)
+ * bug fix: stray FD-HANDLERs are no longer left lying around after unwinds
+ from RUN-PROGRAM. (lp#840190, reported by Dominic Pearson; fix from Max
+ Mikhanosha)
+ * bug fix: redefining classes such that slots with custom allocation are
+ added or removed works again.
+
+changes in sbcl-1.0.51 relative to sbcl-1.0.50:
+ * minor incompatible change: SB-BSD-SOCKET socket streams no longer
+ participate in SERVE-EVENT by default: pass :SERVE-EVENTS T to
+ MAKE-SOCKET-STREAM if using SERVE-EVENT.
+ * enhancement: added support for socket keepalive timeout intervals
+ and probe counts on Linux.
+ * enhancement: building 32-bit SBCL on Linux/x86-64 now works without a
+ chroot. (Use "SBCL_ARCH=x86 sh make.sh" to build.)
+ * enhancement: added new toplevel options --quit and --non-interactive
+ (lp#822712).
+ * enhancement: the Windows port of SBCL now builds and runs on Wine
+ (thanks to Anton Kovalenko).
+ * enhancement: more, and more correct, SSE instruction definitions on
+ x86-64 (thanks to Alexander Gavrilov).
+ * enhancement: SB-EXT:SPIN-LOOP-HINT assembles to an instruction designed
+ to help the processor execute spin loops, when applicable. Currently
+ implemented for x86 and x86-64.
+ * optimization: unsigned integer divisions by a constant are implemented
+ using multiplication (affects CEILING, FLOOR, TRUNCATE, MOD, and REM.)
+ * optimization: improved type-derivation for LOAD-TIME-VALUE.
+ * bug fix: correct RIP offset calculation in SSE comparison and shuffle
+ instructions. (lp#814688)
+ * bug fix: COERCE to unfinalized extended sequence classes now works.
+ (reported by Jan Moringen; lp#815155)
+ * bug fix: a compiler error during typecheck generation, reported by Eric
+ Marsden. (lp#816564)
+ * bug fix: obsolete instance protocol fires when shared slots are added
+ or removed.
+ * bug fix: fixed-format floating point printing with scaling factors.
+ (lp#811386)
+ * bug fix: using GCC >= 4.6 to build SBCL on x86 no longer breaks
+ backtraces. (lp#818460)
+ * bug fix: better backtraces for interrupted syscall frames on x86.
+ (lp#549673)
+ * bug fix: SSE comparison instructions can be disassembled even when one
+ operand is in memory. (lp#814702)
+ * bug fix: incomplete writes when not using SERVE-EVENTS. (lp#820599)
+ * bug fix: MULTIPLE-VALUE-BIND + VALUES -> LET conversion could lose derived
+ type information associated with the VALUES form.
+ * bug fix: broken warnings/errors for type-errors involving LOAD-TIME-VALUE
+ forms. (lp#823014)
+ * bug fix: OPEN :IF-EXISTS :APPEND now returns correct FILE-POSITION before
+ first write (lp#561642).
+ * bug fix: compiled closures from EVAL could not be DESCRIBEd. (lp#824974)
+ * bug fix: bound propagation involving conversion of large bignums to
+ floats no longer signals a SIMPLE-TYPE-ERROR, reported by Lutz Euler.
+ (lp#819269)
+ * bug fix: &REST to &MORE conversion still works in unsafe call to known
+ functions; reported by Lutz Euler (lp#826459).
+ * bug fix: bogus deadlocks from interrupts and GCs. (lp#807475, regression
+ since 1.0.48)
+
+changes in sbcl-1.0.50 relative to sbcl-1.0.49:
+ * enhancement: errors from FD handlers now provide a restart to remove
+ the offending handler.
+ * enhancement: SB-INTROSPECT:FIND-DEFINITION-SOURCE now works on structure
+ copiers as well.
+ * enhancement: location of user or system initialization file can now easily
+ be customized for saved cores. See: SB-EXT:*USERINIT-PATHNAME-FUNCTION*
+ and SB-EXT:*SYSINIT-PATHNAME-FUNCTION*.
+ * enhancement: SB-EXT:MAKE-THREAD accepts an argument list designator for
+ the thunk, as a keyword argument, :arguments.
+ * enhancement: constraint propagation is simplified (and sped up) when
+ COMPILATION-SPEED > SPEED.
+ * enhancement: SB-ALIEN exports alien type specifiers SIZE-T and OFF-T.
+ * enhancement: debugger understands &MORE arguments better.
+ * optimization: extracting bits of a single-float on x86-64 has been
+ optimized. (lp#555201)
+ * optimization: MAP and MAP-INTO are more efficient for non-simple vectors,
+ when (> SPEED SPACE).
+ * optimization: local call trampolines (x86 and x86-64) are emitted
+ inline.
+ * optimization: implicit value cells for dynamic-extent closed-over bindings
+ on x86 and x86-64 can hold unboxed values as well.
+ * meta-optimization: improved compilation speed, especially for large
+ functions. (lp#792363 and lp#394206)
+ * bug fix: bound derivation for floating point operations is now more
+ careful about rounding possibly closing open bounds. (lp#793771)
+ * bug fix: SB-POSIX:SYSCALL-ERROR's argument is now optional. (accidental
+ backwards incompatible change in 1.0.48.27)
+ * bug fix: occasional debugger errors in when a type-error occured in a
+ function with dynamic-extent &rest list.
+ * bug fix: &optional and &key supplied-p arguments in DEFSTRUCT
+ boa-construtors can be used to initialized structure slots.
+ * bug fix: FMAKUNBOUND removes the MACRO-FUNCTION, should one exist.
+ (lp#795705, regression)
+ * bug fix: DIRECTORY works better on logical pathnames.
+ * bug fix: RUN-PROGRAM no longer fails spuriously when argument strings
+ are of the order of ARRAY-TOTAL-SIZE-LIMIT. (lp#787237)
+ * bug fix: the compiler no longer constant-folds NaNs in
+ MAKE-{SINGLE,DOUBLE}-FLOAT. (lp#486812)
+ * bug fix: FORMAT now handles floating point rounding correct, eg.
+ (format nil "~,1F" 0.01) => "0.0" instead of "0.01" as previously.
+ (lp#308961)
+ * bug fix: style warning during lambda-list introspection of generic
+ functions with both optional and key argments.
+ * bug fix: regalloc doesn't barf on unused TNs due to type-directed constant
+ folding. (lp#729765)
+ * bug fix: Fixed an off-by-one in MAP-ALLOCATED-OBJECTS that might have caused
+ infinite loops.
+
+changes in sbcl-1.0.49 relative to sbcl-1.0.48:
+ * minor incompatible change: WITH-LOCKED-HASH-TABLE no longer disables
+ interrupts for its body.
+ * enhancement: source locations are now available for files loaded as
+ source, compile-time-too evaluation, and initialization files.
+ * enhancement: WITH-COMPILATION-UNIT :SOURCE-NAMESTRING allows providing
+ virtual source-file information, eg. overriding input-file of COMPILE-FILE
+ when a temporary file is used for compilation.
+ * enhancement: ASDF has been updated to version 2.015.3.
+ * enhancement: backtraces involving frames from the default evaluator are
+ more readable.
+ * enhancement: RUN-PROGRAM works with user-defined binary input and output
+ streams.
+ * enhancement: more informative compile-time warnings and runtime errors for
+ type-errors detected at compile-time.
+ * enhancement: deadlock detection for mutexes and spinlocks.
+ * enhancement: dynamic-extent for &rest lists stack allocate only their
+ spines, not their argumets. While portable code should not rely on this,
+ particularly in combination with inlining, it should make dynamic-extent
+ easier to use safely.
+ * enhancement: SB-POSIX improvements:
+ ** WNOHANG and WUNTRACED are exported.
+ ** SYSCALL-ERROR now also provides the name of the failing system call.
+ * enhancement: --script improvements:
+ ** errors on standard input, output, and error streams are handled and
+ cause scripts to exit silently, making them easier to use in shell
+ pipelines.
+ ** backtraces from scripts now go to standard error instead of the
+ terminal even if one is available.
+ ** --script can be an argument, causing the script to be loaded from
+ standard input.
+ * enhancement: MAKE-ALIEN-STRING provides an easy way to transport lisp
+ strings to foreign memory.
+ * enhancement: (SETF GC-LOGFILE) allows logging garbage collections to
+ a file, making it easier to understand heap dynamics.
+ * optimization: using a &REST argument only in APPLY or VALUES-LIST calls
+ allows the compiler to automatically elide rest-list allocation so long as
+ the call sites are in functions that the compiler knows cannot escape.
+ (lp#504575)
+ * optimization: CALL-NEXT-METHOD using explicit arguments is faster,
+ especially in safe code when none of the required arguments have changed
+ their identities.
+ * bug fix: blocking reads from FIFOs created by RUN-PROGRAM were
+ uninterruptible, as well as blocking reads from socket streams created
+ with for which :SERVE-EVENTS NIL. (regression from 1.0.42.43)
+ * bug fix: SET-SYNTAX-FROM-CHAR now removes dispatch-macro character syntax
+ from the to-char if the from-char is not a dispatch-macro character.
+ * bug fix: references to undefined variables in function calls that are
+ optimized away now signal a runtime error. (lp#722734)
+ * bug fix: miscompilation of MULTIPLE-VALUE-CALL when asserting derived
+ types from a function defined in the same file. (regression from
+ 1.0.43.57)
+ * bug fix: TRULY-THE forms are now macroexpandable and setf-expandable.
+ (lp#771673)
+ * bug fix: spurious errors during QUIT when standard streams were closed.
+
+changes in sbcl-1.0.48 relative to sbcl-1.0.47:
+ * incompatible change: SB!KERNEL:INSTANCE-LAMBDA, deprecated for over five
+ years, is now no longer supported.
+ * enhancement: read() and write() have been added to SB-POSIX.
+ * enhancement: types of DEFSTRUCT constructors are proclaimed more
+ accurately, allowing better typechecking of call-sites.
+ * enhancement: errors during compile-time-too processing (i.e. EVAL-WHEN)
+ are no longer caught. (reverted to pre 1.0.34 behaviour)
+ * optimization: slightly faster ISQRT. (lp#713343)
+ * bug fix: better support for Solaris /bin/sh in sh-based tests.
+ * bug fix: TRACE behaves better when attempting to trace undefined
+ functions. (lp#740717)
+ * bug fix: missed optimizations for (FUNCALL (LAMBDA ...) ...) in comparison
+ to (FUNCALL #'(LAMBDA ...) ...).
+ * bug fix: ((LAMBDA ...) ...) forms with invalid argument counts resulted in
+ a compile-time error. (lp#720382)
+ * bug fix: forms such as (FUNCALL (FUNCTION NAME OOPS) ...) were compiled
+ without complaints.
+ * bug fix: less verbose source forms for functions from EVAL. (lp#747485)
+ * bug fix: sense of SLOT-BOUNDP-USING-CLASS was inverted in a MAKE-INSTANCE
+ optimization. (regression from 1.0.45.18/1.0.46.15)
+ * bug fix: package locks did not protects against compile-time side-effects
+ of DEFUN. (lp#675584)
+ * bug fix: --dynamic-space-size argument is validated more carefully.
+ (lp#721457)
+ * bug fix: memory fault from printing a malformed simple-condition.
+ (lp#705690)
+ * bug fix: redefining classes so that slot-definition classes change now
+ engages the obsolete instance protocol. (lp#766271)
+ * bug fix: constant improper lists could break source coverage recording.
+ (lp#767959)
+ * bug fix: compiling calls to eg. MEMBER with massive constant list arguments
+ could exhaust stack.
+
+changes in sbcl-1.0.47 relative to sbcl-1.0.46:
+ * bug fix: fix mach port rights leaks in mach exception handling code on
+ darwin/x86 and /x86-64. (thanks to Willem Oudshoorn for motivation and the
+ initial patch)
+ * enhancement: --script muffles style-warnings and compiler notes. (lp#677779)
+ * enhancement: redefinition warnings for macros from different files. (lp#434657)
+ * enhancement: better MACHINE-VERSION on Darwin x86 and x86-64. (lp#668332)
+ * enhancement: (FORMAT "foo" ...) and similar signal a compile-time warning. (lp#327223)
+ * enhancement: no more "in: LAMBDA NIL" messages from the compiler for forms
+ processed using EVAL -- now the appropriate toplevel form is reported instead.
+ * enhancement: more legible style-warnings for inappropriate IGNORE and IGNORABLE
+ declarations. (lp#726331)
+ * enhancement: :NOT-NULL option has been added to alien C-STRING type to indicate
+ that NIL/NULL is excluded from the type.
+ * enhancement: SB-INTROSPECT:MAP-ROOT allows mapping over pointers contained in
+ arbitrary objects.
+ * optimization: SLOT-VALUE &co are faster in the presence of SLOT-VALUE-USING-CLASS
+ and its compatriots.
+ * optimization: core startup time is reduced by 30% on x86-64. (lp#557357)
+ * bug fix: SB-DEBUG:BACKTRACE-AS-LIST guards against potentially leaking
+ stack-allocated values out of their dynamic-extent. (lp#310175)
+ * bug fix: attempts to use SB-SPROF for wallclock profiling on threaded
+ x86-64 builds caused a type-error.
+ * bug fix: calling COMPILE with something else than a lambda-expression as the
+ second argument reports a more sensible error. (lp#718905)
+ * bug fix: invalid combinations of :PREDICATE and :TYPE options in DEFSTRUCT
+ are detected. (lp#520607)
+ * bug fix: constant keyword argument checking didn't take :ALLOW-OTHER-KEYS
+ into account.
+ * bug fix: SLOT-BOUNDP information is correct during MAKE-INSTANCE in the
+ presence of (SETF SLOT-VALUE-USING-CLASS) and SLOT-BOUNDP-USING-CLASS
+ methods. (regression from 1.0.45.18)
+ * bug fix: INITIALIZE-INSTANCE :AROUND methods supplying initargs via
+ CALL-NEXT-METHOD work correctly. (regression from 1.0.45.19)
+ * bug fix: several foreign functions accepting string also accepted NIL and
+ consequently caused a memory fault at 0 now signal a type-error instead.
+ (lp#721087)
+ * bug fix: under rare circumstances, constraint propagation could rewrite a
+ variable reference to refer to a variable not in scope, causing an error
+ during physical environment analysis when attempting to close over the
+ variable. (lp#551227)
+ * bug fix: SIMPLE-CONDITION :FORMAT-CONTROL defaults to NIL.
+
+changes in sbcl-1.0.46 relative to sbcl-1.0.45:
+ * enhancement: largefile support on Solaris.
+ * enhancement: SB-PROFILE:REPORT now supports :LIMIT and :PRINT-NO-CALL-LIST
+ arguments (lp#710017)
+ * enhancement: SB-PCL:+SLOT-UNBOUND+ is exported, making it possible to
+ distinguish unbound instance slots when using STANDARD-INSTANCE-ACCESS
+ &co. (lp#718039)
+ * optimization: ERROR and CERROR are approximately 5 times faster.
+ * optimization: optimized constructors are used for MAKE-INSTANCE of classes
+ with applicable non-standard (SETF SLOT-VALUE-USING-CLASS),
+ SLOT-BOUNDP-USING-CLASS, and INITIALIZE-INSTANCE :AROUND methods, speeding
+ up instance creation in those cases.
+ * optimization: arithmetic operations with multiple constant arguments in now
+ have them reduced at compile-time. (lp#676414)
+ * optimization: determining current character position on string-streams for
+ pretty-printing was overly slow.
+ * bug fix: local tail calls to DYNAMIC-EXTENT functions can no longer cause
+ lifetime analysis to overwrite closed-over variables (lp#681092).
+ * bug fix: encoding errors from some multibyte external formats such as EUC-JP
+ were not handled correctly (lp#713063).
+ * bug fix: printing waitqueue objects without setting *PRINT-CIRCLE* to T is now
+ safe (lp#673630).
+ * bug fix: Solaris/x86-64 wasn't getting built with lutex support by
+ mistake. (lp#667297).
+ * bug fix: CONSTANTLY generated functions had bogus lambda-lists. (lp#713626)
+ * bug fix: RUN-PROGRAM :PTY option was racy on OpenBSD. (lp#669485)
+ * bug fix: UNINTERN takes a symbol, not a symbol designator -- could previously
+ unintern the wrong symbol with the same name. (lp#693796)
+ * bug fix: COPY-PPRINT-DISPATCH always has access to a pristine table,
+ making it possible to restore the initial table if it has been messed up.
+ (lp#678409)
+
+changes in sbcl-1.0.45 relative to sbcl-1.0.44:
+ * enhancement: ~/ and ~user/ are treated specially in pathnames.
+ Refer to documentation for details.
+ * enhancement: ASDF has been updated to version 2.010.
+ * optimization: mutated closed-over variables that are only accessed by
+ DYNAMIC-EXTENT closures (currently only FLET and LABELS functions
+ declared to be DYNAMIC-EXTENT) are stored directly in their containing
+ stack frame, rather than allocating a VALUE-CELL (lp#586103).
+ * optimization: UNWIND-PROTECT cleanup functions are now declared
+ DYNAMIC-EXTENT.
+ * bug fix: backtracing function with &REST arguments now shows the full
+ argument list. (lp#310173)
+ * bug fix: return types for functions with complex lambda-lists are now
+ derived properly (lp#384892)
+ * bug fix: when SPEED > SPACE compiling CONCATENATE 'STRING with constant
+ long string arguments slowed the compiler down to a crawl.
+ * bug fix: closure VALUE-CELLs are no longer stack-allocated (lp#308934).
+ * bug fix: non-standard MAKE-METHOD-LAMBDA methods could break RETURN-FROM
+ in the DEFMETHOD body.
+ * bug fix: #<SB-C::DEFINED-FUN ...> should no longer appear in compiler
+ messages, being instead replaced with the corresponding function name.
+ * bug fix: don't derive overly complex unions of numeric types for arithmetic
+ operators. (lp#309448)
+
+changes in sbcl-1.0.44 relative to sbcl-1.0.43:
+ * enhancement: RUN-PROGRAM accepts :EXTERNAL-FORMAT argument to select the
+ external-format for its :INPUT, :OUTPUT, AND :ERROR :STREAMs.
+ * enhancement: ALLOCATION-INFORMATION also provides the page the object
+ resides on.
+ * enhancement: default dynamic-space size can be configured at build-time
+ without touching source, using the --dynamic-space-size argument to make.sh.
+ * enhancement: DESCRIBE recognizes symbols naming optimization policy
+ qualities, and mentions ALWAYS-BOUND declarations.
+ * enhancement: ATOMIC-INCF now supports AREF of (SIMPLE-ARRAY SB-EXT:WORD (*))
+ as a place.
+ * enhancement: ASDF has been updated to 2.009.
+ * enhancement: the system detects known type-erros in calls better,
+ signalling a full warning about violated proclaimed FTYPEs and violations
+ of derived FTYPEs within the same file, including self-calls.
+ * enhancement: new function: SB-EXT:DELETE-DIRECTORY is now provided.
+ * optimization: constant-folding exploits numeric and character types, in
+ addition member types.
+ * optimization: numeric, character and member types that are inhabited by
+ exactly one value are tested with EQL.
+ * optimization: more conditional branches are eliminated during IR1.
+ Branches are simplified before performing if/if-conversion, and simple
+ equivalent branches (that only read the same constant or variable) are
+ merged.
+ * improvements to the Windows port:
+ ** change: canonical unparsing form for pathname namestrings now uses / as
+ directory separator. NATIVE-NAMESTRING still uses \ as the separator.
+ ** bug fix: stackoverwriting due to incorrect usage of PeekConsoleInput
+ on Windows. (thanks to Kalyanov Dmitry)
+ ** bug fix: build now works on cygwin with GCC 4.x installed. (thanks to
+ Kalyanov Dmitry)
+ ** bug fix: run-sbcl.sh now works on Cygwin. (thanks to Kalyanov Dmitry)
+ * bug fix: compiler failed to derive the result-type of MAKE-ARRAY as
+ (AND VECTOR (NOT SIMPLE-ARRAY)) when appropriate. (lp#309130)
+ * bug fix: (THE (VALUES ...)) in LOAD-TIME-VALUE caused a compiler-error.
+ (lp#646796)
+ * bug fix: interrupts arriving during CL:OPEN caused an error.
+ * bug fix: overeager character buffering could cause input to block
+ spuriously when reading from a pipe (lp#643686)
+ * bug fix: more efficient timer expiry should avoid starvation on systems
+ where number of SIGALRMs per second is restricted. (lp#375515)
+ * bug fix: non-unicode builds no longer fail (broken since 1.0.36.15).
+ * bug fix: compile-times no longer scale linearly with the size of
+ quoted lists in source-code. (lp#654289)
+ * bug fix: better errors for unknown external-formats in OPEN. (lp#561974)
+ * bug fix: DEBUG>SPEED no longer degrades ALIEN-FUNCALL performance quite
+ so badly. (lp#654485)
+ * bug fix: SB-INTROSPECT:FIND-DEFINITION-SOURCES-BY-NAME no longer signals
+ an error for eg. STRUCTURE. (lp#458015)
+ * bug fix: LOOP WITH NIL = ... signalled an unused variable style-warning.
+ (lp#613871, thanks to Roman Marynchak)
+ * bug fix: more reliable &REST list type derivation. (lp#655203)
+ * bug fix: PPRINT-LOGICAL-BLOCK multiply-evaluated :PER-LINE-PREFIX,
+ and issued pointles code-deletion notes for it, :PREFIX, and :SUFFIX.
+ * bug fix: the compiler didn't utilize the proclaimed ftype for functions
+ also declared NOTINLINE. (lp#655581)
+ * bug fix: the compiler could attempt to emit constant left shifts of
+ greater value than n-word-bits. (lp#309063)
+ * bug fix: (SETF SYMBOL-FUNCTION) and (SETF FDEFINITION) clear derived
+ type information for the function being set. (lp#659220)
+ * bug fix: the system used to signal bogus STYLE-WARNINGs when functions
+ containing self-calls were recompiled with a new signature, and failed
+ to warn when a self-call using the old signature was left in. (lp#655126)
+ * bug fix: incorrect FILE-POSITION on streams opened using :EXTERNAL-FORMAT
+ :DEFAULT when the default external had character size other than 8 bits.
+ (lp#657183)
+ * bug fix: derived types of functions in the same file were implicitly
+ trusted, leading to potential heap corruption when those function were
+ defined incompatibly. (lp#657499)
+ * bug fix: existing ASDF source registries are ignored when building
+ contribs (lp#659105)
+ * bug fix: short-form DEFSETF checks that the second argument is a symbol
+ (lp#655824, thanks to Roman Marynchak)
+ * bug fix: (SETF MACRO-FUNCTION) clobbered macro-definitions before
+ package-lock violation was detected. (lp#660752)
+ * bug fix: the system can store different docstrings for a single function
+ under different names. (lp#661631, regression from 1.0.29.24)
+ * bug fix: source-locations of DEFGENERIC forms weren't getting recorded
+ properly. (lp#384801)
+ * bug fix: (COERCE X '(SIMPLE-VECTOR 5)) and similar coercions to vectors
+ of specified length could confuse the type derivation in unsafe code.
+ (lp#655872)
+ * bug fix: SB-POSIX:FORK now signals an error if an attempt to
+ fork with multiple Lisp threads running is made on every platform,
+ not just Darwin. (lp#451111)
+ * bug fix: SB-BSD-SOCKETS and SB-SIMPLE-STREAMS could leave stale finalizers
+ around when core was saved, which could cause undefined behaviour when the
+ core was reified.
+ * bug fix: Allow UNTRACE of functions that are no longer defined
+ (lp#667657, thanks to Attila Lendvai)
+ * bug fix: MAKE-ARRAY calls with invalid keyword argument lists now signal a
+ compile-time warning (lp#664373, thanks to Stas Boukarev)
+
+changes in sbcl-1.0.43 relative to sbcl-1.0.42:
+ * incompatible change: FD-STREAMS no longer participate in the serve-event
+ event-loop by default. (lp#316072)
+ ** In addition to streams created by explicit calls to MAKE-FD-STREAM this
+ affects streams from CL:OPEN.
+ ** Streams from SOCKET-MAKE-STREAM still participate in serve-event by
+ default, but this is liable to change: applications needing serve-event
+ for socket streams should explicitly request it using :SERVE-EVENTS T
+ in the call.
+ * enhancement: SB-EXT:WORD type is provided for use with SB-EXT:ATOMIC-INCF
+ &co.
+ * enhancement: CLOS effective method functions and defclass slot typechecking
+ function now have debug names for use in backtraces and profiles.
+ * enhancement: ASDF has been updated to version 2.004. (lp#605260, thanks to
+ Faré Rideau)
+ * enhancement: symbols are printed using fully qualified names in several
+ error and warning messages which are often associated with package
+ conflicts or mixups (lp#622789, thanks to Attila Lendvai)
+ * bug fix: SB-BSD-SOCKETS:SOCKET-CONNECT was not thread safe. (lp#505497,
+ thanks to Andrew Golding)
+ * bug fix: reading /proc files on Linux works. (lp#425199)
+ * bug fix: DOTIMES accepted literal non-integer reals. (lp#619393, thanks to
+ Roman Marynchak)
+ * bug fix: WRITE-TO-STRING compiler macro binding special variable names,
+ breaking code that tried to write the value of a printer control variable.
+ (lp#581564, thanks to Stas Boukarev)
+ * bug fix: WRITE compiler macro did not handle output stream designators
+ correctly. (lp#598374, thanks to Stas Boukarev)
+ * bug fix: better availability of names of foreign functions in backtraces
+ on Linux. (lp#626962, thanks to Stas Boukarev)
+ * bug fix: scripting and build for Solaris and FreeBSD. (lp#615497,
+ lp#627581, thanks to Josh Elsasser and Jim Wise)
+ * bug fix: build fixes for OpenBSD -current and 4.8 (lp#615489, lp#615492,
+ thanks to Josh Elsasser)
+ * bug fix: using aliases for builtin classes as defmethod specializers
+ without adding DEFTYPEs for them works. (lp#618387)
+ * bug fix: timetravel by getrusage() no longer causes type-errors during GC.
+ (lp#544421)
+ * bug fix: legally dynamic-extent lists and vectors used as
+ initialization arguments to MAKE-ARRAY can be stack allocated. (lp#586105)
+ * bug fix: inline-expansion creating references to dead lambda-variables
+ (lp#454681, thanks to Alexey Dejneka)
+ * bug fix: better error message for bogus numerical arguments to RANDOM.
+ (lp#598986, thanks to Stas Boukarev)
+ * bug fix: the compiler occasionally inlined references from incompatible
+ environments occurs. (lp#308951)
+ * bug fix: the compiler threw an error when trying to compile a local
+ function (labels or flet) known to take a specialized complex argument.
+ (not in launchpad, reported by sykopomp in #lispgames)
+ * bug fix: package-locks failed to protect against compile-time effects of
+ DEFUN when the symbol previously had a macro definition. (lp#576637)
+ * bug fix: spurious ignore warnings even given (DECLARE IGNORE) in methods
+ when parameter bindings mutated. (reported by Faré Rideau; lp #611361)
+ * bug fix: workaround for compiler hang in ORDER-UVL-SETS (lp#308914)
+ * bug fix: evaluation in debugger REPL works using the global context when
+ in frames that do not have sufficient debug information.
+ * bug fix: exceeding FD_SETSIZE limit now results in an sensible error
+ (lp#316068)
+ * bug fix: (SETF DOCUMENTATION) of a macro works properly. (lp#643958, thanks
+ to Stas Boukarev)
+ * bug fix: interrupt taking longer than the requested period caused SLEEP
+ to hang on Darwin. (lp#640516, thanks to Joe Lebroco for the analysis)
+
+changes in sbcl-1.0.42 relative to sbcl-1.0.41
+ * build changes
+ ** Cross-compilation host is now specified to make.sh using
+ command-line argument --xc-host=<command> instead of a positional
+ argument. (thanks to Daniel Herring)
+ ** Install location can be specified to make.sh using command-line
+ argument --prefix=<path>. (lp#550889s, thanks to Daniel Herring)
+ * optimization: The default implementation of
+ COMPUTE-DISCRIMINATING-FUNCTION does much less wasted work.
+ * enhancement: Explicit memory barrier operations are now available for use
+ by multithreaded code. See documentation for details.
+ * enhancement: Experimental support for threading on Linux/PPC.
+ * bug fix: RENAME-PACKAGE returns the package. (Thanks to Eric Marsden)
+ * bug fix: EXPT signals an error if first argument is a zero and second
+ argument is a floating point zero. (lp#571581, thanks to Roman Marynchak)
+ * bug fix: DEFTYPE signals an error for non-list lambda-lists.
+ (lp#576594, thanks to Roman Marynchak)
+ * bug fix: make ASDF-INSTALL compatible with the now-included ASDF2.
+ (lp#612998, reported by Phil Hargett; patch from Jim Wise)
+
+changes in sbcl-1.0.41 relative to sbcl-1.0.40:
+ * optimization: validity of observed keyword initargs to MAKE-INSTANCE is
+ cached, leading to many fewer expensive calls to
+ COMPUTE-APPLICABLE-METHODS.
+ * optimization: in the (unoptimized) general method for MAKE-INSTANCE on a
+ CLASS argument, search for and call an appropriate optimized ctor function
+ if it exists.
+ * bug fix: WRITE always returns the correct value.
+
+changes in sbcl-1.0.40 relative to sbcl-1.0.39:
+ * bug fix: readdir now works on :inode64 darwin builds (lp#592897)
+ * bug fix: Name conflicts between symbols passed as arguments to a single
+ call to IMPORT no longer add multiple symbols with the same name to the
+ package (detectable via DO-SYMBOLS).
+ * bug fix: support building without the dlshim on darwin x86 and x86-64
+ (lp#533470).
+ * bug fix: TRACE :ENCAPSULATE NIL now works on ppc/linux.
+
+changes in sbcl-1.0.39 relative to sbcl-1.0.38:
+ * bug fix: Backtrace from undefined function on x86 and x86-64 now show
+ the calling frame.
+ * bug fix: linkage-table entries on PPC now no longer overflow their
+ space allocation (potentially causing crashes if they are written out
+ of order).
+ * bug fix: Scrub control stack after scavenging in gencgc on non-x86oid
+ platforms, preventing the GC from seeing stale pointers on the control
+ stack in subsequent GCs (which would, and does, break invariants).
+ * bug fix: 32-bit unicode external formats now work on big-endian systems.
+ * bug fix: Literal characters with code points greater than about 32767
+ now work on PPC UNICODE builds.
+ * bug fix: Any noise left by SSE operations (sqrt and conversions) in the
+ high order bits are explicitly cleared out. In some contrived situations,
+ this could lead to wrong results in mixed real/complex float arithmetic.
+ * bug fix: Fix function/macro redefinition warnings when building with
+ clisp. (lp#576787, thanks to Josh Elsasser)
+ * new platform: experimental support for ppc/openbsd (thanks to Josh
+ Elsasser).
+ * bug fix: Floating-point traps now work on ppc/linux.
+
+changes in sbcl-1.0.38 relative to sbcl-1.0.37:
+ * incompatible change: Thread names are now restricted to SIMPLE-STRINGs
+ like for any other thread-related datastructure, MUTEX, etc. (lp#547095)
+ * deprecation: the SB-QUEUE contrib was merged into the SB-CONCURRENCY
+ contrib module. New code should depend on SB-CONCURRENCY, not SB-QUEUE.
+ * deprecation: SB-THEAD:GET-MUTEX was deprecated in favor of
+ SB-THREAD:GRAB-MUTEX.
+ * new contributed module: SB-CONCURRENCY is a new contrib; it's supposed to
+ contain additional data structures and tools for concurrent programming;
+ at the moment it contains a lock-free queue, and a lock-free mailbox
+ implementation.
+ * new feature: added SB-THREAD:GRAB-MUTEX; it's like the now deprecated
+ GET-MUTEX but takes &key rather than &optional parameters. Also added
+ :TIMEOUT argument to GRAB-MUTEX on non-sb-lutex platforms like Linux and
+ BSD.
+ * new feature: added SB-THREAD:TRY-SEMAPHORE, a non-blocking variant of
+ SB-THREAD:WAIT-ON-SEMAPHORE.
+ * new feature: SB-EXT:ATOMIC-DECF has been added as a companion to
+ SB-EXT:ATOMIC-INCF.
+ * new feature: a CANCEL-DEADLINE is associated with DEADLINE-TIMEOUT
+ conditions to defer the deadline for forever.
+ * enhancement: *STANDARD-OUTPUT*, *STANDARD-INPUT*, and *ERROR-OUTPUT* are
+ now bivalent.
+ * enhancement: errors from NO-APPLICABLE-METHOD and
+ NO-PRIMARY-METHOD now have a RETRY restart available to retry the
+ generic function call.
+ * enhancement: SB-BSD-SOCKET improvements
+ ** sockets and socket streams now have a more informative printed
+ representation based on the corresponding SOCKET-NAME and
+ SOCKET-PEERNAME.
+ ** SOCKET-MAKE-STREAM once more supports the :AUTO-CLOSE option.
+ (lp#540413)
+ ** SOCKET-CLOSE now accepts :ABORT argument, which is passed on to
+ CL:CLOSE when appropriate, and no longer disassociates the stream
+ from the socket if close failed. (lp#543951)
+ * improvements to the instrumenting profiler
+ ** new feature: report per-function GC overhead. (thanks to John Fremlin)
+ ** optimization: counters no longer use locks for the overflow mode.
+ ** bug fix: whenever a profiling counter wrapped into overflow mode, it
+ incurred an off-by-one miscount.
+ * enhancement: improved MAKE-HASH-TABLE documentation (lp#543473)
+ * enhancement: improved DEFMETHOD pretty-printing.
+ * enhancement: perform range reduction when arguments are too large for
+ x87's transcendentals (instead of returning 0). (lp#327192)
+ * enhancement: eliminate some spurious TYPE-WARNINGs. Should help with
+ some of CL-PPCRE's macros. (lp#570079)
+ * enhancement: our machine code is slightly less hostile to valgrind on
+ x86-64.
+ * enhancement: up-to-date versions of NetBSD-current are supported. (Thanks
+ to Robert Swindells and Aleksej Saushev)
+ * bug fix: correct restart text for the continuable error in MAKE-PACKAGE.
+ * bug fix: a rare case of startup-time page table corruption.
+ * bug fix: a semaphore with multiple waiters and some of them unwinding due
+ to timeouts could be left in an inconsistent state.
+ * bug fix: fix typo in "Reporting Bugs" section of the manual (lp#520366)
+ * bug fix: misoptimization of multiplication by one in
+ (SB-C::FLOAT-ACCURACY 0) policies.
+ * bug fix: miscounts in SB-PROFILE.
+ * bug fix: Fix lost wakeup bug between SB-THREAD:CONDITION-WAIT and
+ CONDITION-NOTIFY on Linux. See threads "lost wakeup in condition-wait /
+ condition-notify" (Feb 2010) and "Condition-Wait, Deadline handler, waking
+ up itself" (March 2010) for further details.
+ * bug fix: allow forward FIND and POSITION on lists to elide checking :END
+ against length of the list if the element is found before the specified
+ END is reached. (thanks to Alec Berryman, lp#554385)
+ * bug fix: errors signalled during package graph modification no longer
+ block FIND-SYMBOL and FIND-PACKAGE in other threads. (lp#511072)
+ * bug fix: SB-POSIX build was broken when SBCL was compiled without the
+ :SB-DOC feature. (lp#552564)
+ * bug fix: SB-INTROSPECT build issues on GENGC/PPC. (lp#490490)
+ * bug fix: more robust runtime executable path detection. (lp#375549)
+ * bug fix: GCD always returns positive values. (lp#413680)
+ * bug fix: Converting division to multiplication by reciprocal handles
+ denormals.
+ * bug fix: We were too eager in eliding range reduction tests on x87.
+ The maximal magnitude is 2^63, not 2^64.
+ * bug fix: Transforms for TRUNCATE don't die when the result is completely
+ ignored anymore.
+ * bug fix: Maybe restore buildability on Alpha.
+ * bug fix: READ-BYTE isn't inline anymore, fixing weird streams failures.
+ (lp#569404)
+ * bug fix: RANDOM-STATE can be printed readably again.
+ * bug fix: Unreadable objects were sometimes printed like #<\nFoo>.
+ * bug fix: Using EQL with non-constant values of constant type (e.g. EQL
+ types) could result in type mismatches during compilation.
+
+changes in sbcl-1.0.37 relative to sbcl-1.0.36:
+ * enhancement: Backtrace from THROW to uncaught tag on x86oids now shows
+ stack frame thrown from.
+ * enhancement: WITH-COMPILATION-UNIT :POLICY allows restricting changes to
+ compiler optimization qualities inside dynamic extent of its body.
+ * enhancement: LOAD-LOGICAL-PATHNAME-TRANSLATIONS can be used to load
+ translations from SYS:SITE;<HOST>.TRANSLATIONS.NEWEST (thanks to Michael
+ Weber)
+ * optimization: SLOT-VALUE and (SETF SLOT-VALUE) take advantage of
+ constraint propgation, allowing better compilation eg. when used to
+ access structures with WITH-SLOTS. (lp#520366)
+ * optimization: the compiler is now more aware of the type of the underlying
+ storage vector for multidimensional simple arrays resulting in better code
+ for accessing such arrays.
+ * optimization: passing NIL as the environment argument to TYPEP no longer
+ inhibits optimizing it. (lp#309788)
+ * optimization: more efficient register usage when handling single-float
+ arguments on x86-64. (thanks to Lutz Euler)
+ * optimization: ADJUST-ARRAY and STABLE-SORT on vectors no longer use
+ pre-allocated temporary vectors. (lp#496249)
+ * bug fix: Fix compiler error involving MAKE-ARRAY and IF forms
+ in :INITIAL-CONTENTS. (lp#523612)
+ * bug fix: FUNCTION-LAMBDA-EXPRESSION lost declarations from interpreted
+ functions. (lp#524707)
+ * bug fix: bogus style warnings from certain (SETF SLOT-VALUE) and
+ WITH-SLOTS usages during compilation.
+ * bug fix: SB-C::CLASS-INFO now prints correctly. (lp#514762)
+ * enhancement: Can now build with ud2 instead of int3 as trap instruction on
+ all x86oid platforms with :UD2-BREAKPOINTS target feature.
+ * bug fix: Breakpoints now work when using ud2 instead of int3 as trap
+ instruction (tested on x86oid linux with ud2-breakpoints).
+ * bug fix: slam.sh now works on win32.
+ * bug fix: better differences of numeric types. (lp#309124)
+ * bug fix: arrays declared intersection and union types can have their
+ upgraded element type derived. (lp#316078)
+ * bug fix: SB-SPROF allocation profiling for all threads failed to profile
+ threads started during profiling. (lp#472499)
+ * bug fix: SB-INTROSPECT test failure when building without SB-EVAL feature.
+ (lp#535658)
+ * bug fix: SB-CLTL2:DECLARATION-INFORMATION did not take
+ SB-EXT:RESTRICT-COMPILER-POLICY into account. (lp#313337)
+ * bug fix: Comma inside a backquoted array or structure resulted in nonsense
+ values instead of signaling an error. (lp#309093)
+ * bug fix: Spurious unused variable warning in a DEFSTRUCT edge case.
+ (lp#528807)
+ * bug fix: More consistent warnings and notes for ignored DYNAMIC-EXTENT
+ declarations (lp#497321)
+ * bug fix: FIND and POSITION on lists did not check sequence bounds properly
+ and failed to detect circular lists (lp#452008)
+ * bug fix: leakage from ~/.asdf-install into the ASDf-INSTALL contrib build
+ (lp#538974)
+ * bug fix: LOOP OF-TYPE VECTOR compile-time error. (lp#540186)
+ * bug fix: SIGNAL SB-SYS:INTERACTIVE-INTERRUPT before entering the debugger
+ due to it, so that handlers can run.
+ * bug fix: reparsing undefined types if they have become defined since
+ parsing. (lp#309128)
+ * bug fix: missing &REST type in a proclamation for a function with both
+ &REST and &KEY in lambda-list caused miscompilation (lp#458354)
+ * bug fix: WHO-CALLS information for source-transformed and compiler-macro
+ expanded calls (lp#542174)
+ * bug fix: more accurate WHO-MACROEXPANDS information; point into rather
+ than just at toplevel form.
+
+changes in sbcl-1.0.36 relative to sbcl-1.0.35:
+ * new feature: SB-EXT:TYPEXPAND-1, SB-EXT:TYPEXPAND, and
+ SB-EXT:TYPEXPAND-ALL behave exactly like their MACROEXPAND counterparts
+ but work on type specifiers.
+ * new feature: SB-EXT:DEFINED-TYPE-NAME-P returns whether a symbol is known
+ to name a type specifier.
+ * new feature: SB-EXT:VALID-TYPE-SPECIFIER-P returns whether a given type
+ specifier is valid where "valid" basically means "would be accepted as
+ second argument of TYPEP".
+ * new feature: SB-INTROSPECT:FUNCTION-TYPE takes a function-designator and
+ returns the function's declared, or derived FTYPE.
+ * new feature: SB-POSIX now supports accessing the d_ino member of
+ dirent structures. (Thanks to Philipp Marek and Pierre THEIRRY)
+ * new feature: The function SB-EXT:SEED-RANDOM-STATE has been added to
+ provide for seeding a RANDOM-STATE object with user-provided data or
+ from the operating system's PRNG. Also, (MAKE-RANDOM-STATE T) will
+ attempt to initialize the returned state from the operating system's
+ PRNG where possible. (Thanks to Fare Rideau; launchpad bug lp#310116)
+ * bug fix: Fix SB-SIMPLE-STREAMS:READ-VECTOR to correctly set the
+ FILE-POSITION of the stream being read from. (launchpad bug lp#491087)
+ * bug fix: Fix grammar and style issues for the docstrings of
+ printer-related variables and functions. (Thanks to mon_key; launchpad
+ bug lp#518696)
+ * bug fix: Fix compilation on chenygc platforms. Thanks to Larry Valkama and
+ Bruce O'Neel.
+ * bug fix: SB-THREAD:CONDITION-WAIT sometimes signaled a deadline twice
+ in a row even though a handler defered the deadline long into the
+ future. (lp#512914)
+ * bug fix: A deadline handler was run without interrupts enabled for a
+ deadline signaled within SB-THREAD:CONDITION-WAIT. That could result
+ in infinitely spinning, non-killable threads.
+ * bug fix: Backtrace from internal-errors on x86-64 os x was truncated
+ before reaching the erring stack frame.
+ * bug fix: Fix type derivation for EXPT when raising a fixnum to a
+ real power. (launchpad bug lp#525949)
+ * bug fix: Fix SB-EXT:GENERATION-* accessors for generations > 0 on
+ GENCGC platforms. (launchpad bug lp#529014)
+ * bug fix: More robust checks for invalid DEFMETHOD argument specializers.
+ (launchpad bug lp#525916)
+ * bug fix: Fix building on Darwin when sysctl is not in the user's PATH.
+ (Thanks to Robert Goldman)
+
+changes in sbcl-1.0.35 relative to sbcl-1.0.34:
+ * optimization: ROUND with a single single-float or double-float argument
+ is properly inlined when possible.
+ * optimization: Slightly better code is generated for integer<->float
+ conversions and for single-float<->double-float conversions on x86-64.
+ * optimization: SB-ROTATE-BYTE:ROTATE-BYTE now generates more efficient
+ code for 32-bit and 64-bit rotations on x86-64.
+ * bug fix: The install script changes the ownership of directories as well
+ as files for contrib modules using asdf. (thanks to Eugene Ossintsev;
+ launchpad bug lp#508485)
+ * bug fix: TRUNCATE with a single single-float or double-float argument is
+ properly inlined when possible. (launchpad bug lp#489388)
+ * bug fix: Passing a rotation count of zero to SB-ROTATE-BYTE:ROTATE-BYTE
+ no longer causes a compiler error on x86 and ppc.
+ * bug fix: GET-MACRO-CHARACTER bogusly computed its second return value
+ always relative to *READTABLE* rather than the passed argument.
+
+changes in sbcl-1.0.34 relative to sbcl-1.0.33:
+ * minor incompatible change: threading support is now enabled by default
+ on x86[-64] Linux.
+ * enhancement: SB-INTROSPECT:DEFTYPE-LAMBDA-LIST now also works on most
+ builtin types.
+ * enhancement: Errors during compile-time-too processing (i.e. EVAL-WHEN)
+ are now caught and reported just like errors during macroexpansion.
+ * enhancement: SB-POSIX now provides access to tcdrain(), tcflow(),
+ tcflush(), tcgetsid(), and tcsendbreak(). (thanks to Jerry James)
+ * enhancement: ASDF systems can now depends on SB-QUEUE.
+ * fixes and improvements related to Unicode and external formats:
+ ** bug fix: error handling and restart usage in the ucs-2 external format
+ has been improved.
+ ** there is now an implementation of the ucs-4 external format.
+ ** the utf-16 and utf-32 external formats are supported.
+ * bug fix: SB-POSIX wrapper for putenv no longer tries to put lisp strings
+ in the environment. setenv() and unsetenv() are also provided. (reported by
+ Fare Rideau; launchpad bug lp#460455)
+ * bug fix: LOAD of both .fasl and .FASL type files now forces fasl-style
+ loading. This ensures sensible errors for .FASL files from other
+ implementations on case-insensitive filesystems. (reported by Willem
+ Broekema; launchpad bug lp#489417)
+ * bug fix: #p"\\\\" can now be read without error on Win32. (reported by
+ Willem Broekema; launchpad bug lp#489698).
+ * bug fix: some minor code rearrangements to reenable warning-free building
+ from CMUCL (reported by xme@gmx.net; launchpad bug lp#491104)
+ * bug fix: PRINT-OBJECT for clos instances respects the right margin when
+ pretty printing
+ * bug fix: FIND-PACKAGE & DEFPACKAGE were not thread safe. (reported by
+ Attila Lendvai)
+
+changes in sbcl-1.0.33 relative to sbcl-1.0.32:
+ * new port: support added for x86-64 NetBSD. (thanks to Aymeric Vincent)
+ * improvement: support O_LARGEFILE access to files larger than 2GB on
+ x86-64/linux. (thanks to Daniel Janus; launchpad bug lp#453080)
+ * new feature: SB-INTROSPECT:WHO-SPECIALIZES-DIRECTLY to get a list of
+ definitions for methods specializing on the passed class itself.
+ * new feature: SB-INTROSPECT:WHO-SPECIALIZES-GENERALLY to get a list of
+ definitions for methods specializing on the passed class itself, or on
+ subclasses of it.
+ * new build flag: :sb-xref-for-internals; SBCL will collect xref information
+ about itself during the build (e.g. for M-? in Slime), if this flag is
+ enabled in customize-target-features.lisp. This will increase the core
+ size by about 5-6mb, though, so it's mostly interesting to SBCL
+ developers.
+ * new feature: various GENCGC tuning parameters have been experimentally
+ documented and exported from SB-EXT. See documentation for details.
+ * fixes and improvements related to Unicode and external formats:
+ ** the Unicode character database has been upgraded to the
+ Unicode 5.2 standard, giving names and properties to a number of new
+ characters, and providing a few extra characters with case
+ transformations.
+ ** improvement: restarts for providing replacement input/output on coding
+ errors for fd-stream external formats.
+ ** improvement: where :<encoding> is a keyword corresponding to an
+ external format the system supports, it is now possible to specify
+ (:<encoding> :replacement <character>) as an external format which will
+ automatically substitute <character> on encoding or decoding errors for
+ streams and for STRING-TO-OCTETS and its inverse. (launchpad bug
+ lp#317072)
+ ** improvement: the file streams underlying the standard streams (such as
+ *STANDARD-INPUT*, *TERMINAL-IO*) are opened with an external format
+ which uses the replacement mechanism to handle encoding errors,
+ preventing various infinite error chains and unrecoverable I/O
+ confusion.
+ ** minor incompatible change: the utf-8 external format now correctly
+ refuses to encode Lisp characters in the surrogate range (char-codes
+ between #xd800 and #xdfff).
+ ** fix a typo preventing conversion of strings into octet vectors
+ in the latin-2 encoding. (reported by Attila Lendvai; launchpad bug
+ lp#471689)
+ ** fix a bug in the octet multibyte handling of decoding errors and the
+ USE-VALUE restart. (launchpad bug lp#314939)
+ ** fix the bug underlying the expected failure in the FORCE-END-OF-FILE
+ restart on fd-stream decoding errors.
+ ** fix a bug in the ATTEMPT-RESYNC fd-stream decoding restart when the
+ error is near the end of file.
+ ** fix a double-error case in unibyte octet conversions, when the first
+ use of USE-VALUE is ignored.
+ ** fix bugs in handling of undefined code points in unibyte encodings.
+ ** fix LISTEN (and consequent hangs in READ-CHAR-NO-HANG) on bivalent
+ streams after an UNREAD-CHAR.
+ * enhancement: SB-INTROSPECT:ALLOCATION-INFORMATION also reports if the
+ object is allocated in a boxed region of dynamic space.
+ * enhancement: SB-POSIX:FORK now signals an error if an attempt to
+ fork with multiple Lisp threads running is made, instead of going
+ ahead with unpredictable consequences. (reported by Leslie Polzer)
+ * bug fix: uses of slot accessors on specialized method parameters within
+ the bodies of SLOT-VALUE-USING-CLASS methods no longer triggers a type
+ error while finalizing the class. This fix may cause classes with slot
+ accessors to be finalized later than previously. (reported by Lars Rune
+ Nøstdal; launchpad bug lp#473699)
+ * bug fix: restore buildability on the MIPS platform. (regression from
+ 1.0.30.38, reported by Samium Gromoff)
+ * bug fix: inspecting closures is less likely to fail with a type error.
+ * bug fix: no timer starvation when setting the system clock back.
+ (launchpad bug lp#460283)
+ * bug fix: WITH-STANDARD-IO-SYNTAX now binds *PRINT-PPRINT-DISPATCH* to the
+ standard pprint dispatch table as specified by CLHS.
+ * bug fix: give CLISP a hint about a type declaration to enable it to build
+ the cross-compiler without warnings. (thanks to Josh Elasser; launchpad
+ bug lp#396597)
+ * bug fix: correctly dump literal objects in defaulting forms of arglists.
+ (reported by Attila Lendvai; launchpad bug lp#310132)
+ * bug fix: distinguish in type specifiers between arrays that might be
+ complex and arrays that are definitely complex. (launchpad bug lp#309129)
+ * bug fix: SUBTYPEP knows that the SYMBOL type is not SUBTYPEP the KEYWORD
+ type. (reported by Levente Mészáros; launchpad bug lp#485972)
+ * bug fix: setting the value of a symbol-macro within a method in the
+ presence of type declarations works properly again. (reported by Iban
+ Hatchondo; launchpad bug lp#485019)
+
+changes in sbcl-1.0.32 relative to sbcl-1.0.31:
+ * optimization: faster FIND and POSITION on strings of unknown element type
+ in high SPEED policies. (thanks to Karol Swietlicki)
+ * optimization: faster CONCATENATE 'STRING in low SPEED policies (reported
+ by David Vázquez)
+ * improvement: better error signalling for bogus parameter specializer names
+ in DEFMETHOD forms (reported by Pluijzer)
+ * bug fix: DELETE-FILE once again works on logical pathnames (regression
+ since 1.0.30.49)
+ * bug fix: LOGICAL-PATHNAME signals a TYPE-ERROR if pathspec is specified
+ incorrectly.
+ * bug fix: redefinition of a class via DEFCLASS without :DEFAULT-INITARGS
+ removes previous default initargs (reported by Lars Rune Nøstdal and
+ Samium Gromoff)
+ * bug fix: correct WHO-CALLS information for inlined lambdas with complex
+ lambda-lists. (reported by Peter Seibel)
+ * bug fix: SAVE-LISP-AND-DIE option :SAVE-RUNTIME-OPTIONS did not work
+ correctly when starting from an executable core without saved runtime
+ options (reported by Faré Rideau, thanks to Zach Beane)
+ * bug fix: (SETF SLOT-VALUE) signalled a warning which should have been
+ an optimization note instead. (reported by Martin Cracauer)
+ * bug fix: WITH-SLOTS did not work with THE forms. (thanks to David Tolpin)
+ * bug fix: Have RUN-PROGRAM with :INPUT T only run the subprocess in a
+ new process group if it doesn't need to share stdin with the sbcl
+ process. (thanks to Leslie Polzer)
+ * bug fix: SATISFIES could be misoptimized to refer to a local function.
+ (reported by Stanislaw Halik)
+
+changes in sbcl-1.0.31 relative to sbcl-1.0.30:
+ * improvement: stack allocation is should now be possible in all nested
+ inlining cases: failure to stack allocate when equivalent code is manually
+ open coded is now considered a bug.
+ * improvements related to Unicode:
+ ** the Unicode character database has been upgraded to the
+ Unicode 5.1 standard, giving names and properties to a number of new
+ characters, and providing a few extra characters with case
+ transformations.
+ ** the system now recognizes and produces names for Unicode Hangul
+ syllable characters.
+ ** the EBCDIC-US external-format is now supported for octet operations
+ (as well as for stream operations).
+ * new feature: experimental :EMIT-CFASL parameter to COMPILE-FILE can
+ be used to output toplevel compile-time effects into a separate .CFASL
+ file.
+ * optimization: COERCE to VECTOR, STRING, SIMPLE-STRING and recognizable
+ one-dimenstional subtypes of ARRAY is upto 70% faster when the coercion is
+ actually needed.
+ * optimization: TRUNCATE on known single- and double-floats is upto 25%
+ faster.
+ * optimization: division of floating point numbers by constants uses
+ multiplication by reciprocal when an exact reciprocal exists.
+ * optimization: multiplication of single- and double-floats floats by
+ constant two has been optimized.
+ * optimization: ARRAY-IN-BOUNDS-P is resolved at compile-time when
+ sufficient type information is available. (thanks to Leslie Polzer)
+ * optimization: SLOT-VALUE and (SETF SLOT-VALUE) with constant slot names on
+ known structure objects are as efficient as defstruct generated accessors.
+ * optimization: unused vector creation can now be optimized away.
+ * improvement: ASDF systems can now depends on SB-INTROSPECT.
+ * improvement: a STYLE-WARNING is signalled when a generic function
+ clobbers an earlier FTYPE proclamation.
+ * improvement: the compiler is able to track the effective type of
+ generic function across method addition and removal even in the
+ absence of an explicit DEFGENERIC.
+ * improvement: DESCRIBE now reports on symbols naming undefined
+ but assumed or declared function as well.
+ * improvement: recompilation of systems using SB-GROVEL now works
+ (thanks to Leslie Polzer)
+ * improvements to SB-CLTL2 (thanks to Larry D'Anna):
+ ** functions DECLARATION-INFORMATION, PARSE-MACRO, and ENCLOSE have been
+ documented.
+ ** AUGMENT-ENVIRONMENT and DEFINE-DECLARATION have been implemented.
+ ** DECLARATION-INFORMATION now supports declaration name DECLARATION as
+ well as user defined declaration names.
+ ** VARIABLE-INFORMATION is now aware of alien variables.
+ * improvement: improved address space layout on OpenBSD (thanks to Josh
+ Elsasser)
+ * improvement: pretty-printing of various Lisp forms has been improved
+ (thanks to Tobias Rittweiler)
+ * bug fix: calls to DECODE-FLOAT and INTEGER-DECODE-FLOAT whose value was
+ unused were deleted in safe code. (reported by John Fremlin)
+ * bug fix: a failing AVER compiling certain MAKE-ARRAY forms. (reported
+ by James Wright)
+ * bug fix: some out-of-line array predicates were missing (reported by
+ Stelian Ionescu)
+ * bug fix: a failing AVER in CONVERT-MV-CALL has been fixed. (thanks to
+ Larry D'Anna)
+ * bug fix: a failing AVER in %ALLOCATE-CLOSURES conversion has been fixed
+ (thanks to Larry D'Anna)
+ * bug fix: SLEEP supports times over 100 million seconds on long on OpenBSD
+ as well. (reported by Josh Elsasser)
+ * bug fix: DELETE-FILE on streams no longer closes the stream with :ABORT T,
+ leading to possible attempts to delete the same file twice. See docstring
+ on DELETE-FILE for details. (reported by John Fremlin)
+ * bug fix: DELETE-FILE once again deletes the file named by the pathname
+ designator argument, rather than its truename. (reported by Luis
+ Oliveira)
+ * bug fix: the low-level debugger had 32-bit assumptions and was missing
+ information about some array types. (thanks to Luis Oliveira)
+ * bug fix: moderately complex combinations of inline expansions could
+ be miscompiled if the result was declared to be dynamic extent.
+ * bug fix: on x86, SAP-REF of sizes greater than 8 bits with offsets of the
+ form (+ <variable> <integer>) were miscompiled under certain
+ circumstances.
+ * bug fix: in some cases no compiler note about failure to stack allocate
+ was emitted, even if the objects were in fact heap allocated.
+ * bug fix: minor violation of "otherwise inaccessible" rule for stack
+ allocation could cause objects users might reasonably expect to
+ be heap allocated to be stack allocated.
+ * bug fix: DESCRIBE signalled an error for generic functions under
+ certain circumstances. (thanks to Leslie Polzer)
+ * bug fix: Fixed spelling of an error message.
+
+changes in sbcl-1.0.30 relative to sbcl-1.0.29:
+ * minor incompatible change: SB-THREAD:JOIN-THREAD-ERROR-THREAD and
+ SB-THREAD:INTERRUPT-THREAD-ERROR-THREAD have been deprecated in favor
+ of SB-THREAD:THREAD-ERROR-THREAD.
+ * new contrib module: SB-QUEUE provides thread-safe lockless FIFO queues.
+ * new feature: docstrings for local and anonymous functions are no longer
+ discarded. (thanks to Leslie Polzer)
+ * new feature: SB-THREAD:SYMBOL-VALUE-IN-THREAD provides access to symbol
+ values in other threads.
+ * new feature: SB-INTROSPECT:ALLOCATION-INFORMATION provides information
+ about object allocation.
+ * optimization: division of a real float by a complex float is implemented
+ with a specialised code sequence.
+ * optimization: MAKE-INSTANCE with non-constant class-argument but constant
+ keywords is an order of magnitude faster.
+ * optimization: MAKE-INSTANCE with constant keyword arguments is x2-4 faster
+ in the presence of :AROUND or non-standard primary INITIALIZE-INSTANCE
+ methods, and similarly for non-standard metaclass classes as long as there
+ are no methods additional on MAKE-INSTANCE.
+ * optimization: more efficient type-checks for FIXNUMs when the value
+ is known to be a signed word on x86 and x86-64.
+ * optimization: compiler now optimizes (EXPT -1 INTEGER), (EXPT -1.0 INTEGER),
+ and (EXPT -1.0d0 INTEGER) into an ODDP test. (thanks to Stas Boukarev and
+ Paul Khuong)
+ * optimization: compiler is smarter about delegating argument type checks to
+ callees.
+ * optimization: several character functions are now compiled somewhat more
+ efficiently. (reported by Lynn Quam)
+ * optimization: the compiler now derives simple types for LOAD-VALUE-FORMs.
+ * improvement: less unsafe constant folding in floating point arithmetic,
+ especially for mixed complex/real -float operations.
+ * optimization: constant double and single floats are stored in native
+ unboxed format on x86[-64].
+ * optimization: smarter code for arithmetic operations with constant floats,
+ complex floats, or integers on x86[-64].
+ * optimization: smarter code for conjugate/multiplication of float complexes
+ and abs/negate of floats on x86-64.
+ * optimization: more efficient complex float and real float operations on
+ x86-64.
+ * improvement: complex float division is slightly more stable.
+ * improvement: DESCRIBE output has been reworked to be easier to read and
+ contains more pertinent information.
+ * improvement: failure to provide requested stack allocation compiler notes
+ provided in all cases (requested stack allocation not happening without a
+ note being issued is now considered a bug.)
+ * bug fix: SB-POSIX exports the documented types and functions
+ FILE-DESCRIPTOR and FILENAME, and also the corresponding -DESCRIPTOR
+ types. (reported by "abhi")
+ * bug fix: on 64 bit platforms FILL worked incorrectly on arrays with
+ upgraded element type (COMPLEX SINGLE-FLOAT), regression from 1.0.28.55.
+ (thanks to Paul Khuong)
+ * bug fix: looping around HANDLER-CASE could silently consume stack space
+ on each iteration. (reported by "foobar")
+ * bug fix: better error signalling when calls to functions seeking elements
+ from lists (eg. ADJOIN) are compiled with both :TEST and :TEST-NOT.
+ (reported by Tobias Rittweiler)
+ * bug fix: regressions in DIRECTORY from 1.0.28.61: pattern matching of
+ directory components now works as it used to. (various prolems reported by
+ Michael Becker, Gabriel Dos Reis, Cyrus Harmon, and Harald Hanche-Olsen)
+ * bug fix: :PTY option in RUN-PROGRAM was broken with stream arguments.
+ (reported by Elliot Slaughter, thanks to Stas Boukarev)
+ * bug fix: bogus undefined variable warnings from fopcompiled references to
+ global variables. (thanks to Lars Rune Nøstdal)
+ * bug fix: foreign function names should now appear in backtraces on
+ FC6 as well. (reported by Tomasz Skutnik and Tobias Rautenkranz)
+ * bug fix: SETF compiler macro documentation strings are not discarded
+ anymore.
+ * bug fix: GENTEMP is now unaffected by pretty printer dispatch table.
+ (thanks to Alex Plotnick)
+ * bug fix: SLEEP accepts large integer arguments, truncating them to
+ SIGNED-WORD on the assumption that sleeping for 68 years is sufficient
+ for anyone. (reported by Leslie Polzer, thanks to Stas Boukarev)
+ * bug fix: compiler notes for expensive slot type checks could be emitted
+ at runtime MAKE-INSTANCE calls. (reported by Samium Gromoff)
+
+changes in sbcl-1.0.29 relative to 1.0.28:
+ * IMPORTANT: bug database has moved from the BUGS file to Launchpad
+ https://bugs.launchpad.net/sbcl
+ Bugs can be reported directly there, or by sending email to
+ sbcl-bugs@lists.sourceforge.net
+ (no subscription required.)
* minor incompatible change: under weak type checking policy integer
types are weakened less aggressively.
* minor incompatible change: SAVE-LISP-AND-DIE :TOPLEVEL function is now
allowed to return, which causes SBCL to quit with exit status 0. Previously
if the function returned with a small integer return value, that value
was accidentally reused as the exit status.
+ * new feature: SB-EXT:DEFINE-HASH-TABLE-TEST allows defining new arguments
+ to MAKE-HASH-TABLE :TEST, and MAKE-HASH-TABLE has been extended with
+ :HASH-FUNCTION argument. Refer to user manual for details.
* new feature: SB-EXT:DEFGLOBAL macro allows defining global non-special
variables.
+ * new feature: SB-EXT:GET-TIME-OF-DAY provides access to seconds and
+ microseconds since the Unix epoch on all platforms.
* new feature: SB-EXT:ALWAYS-BOUND proclamation inhibits MAKUNBOUND, and
allows the compiler to safely elide boundedness checks for special
variables.
the symbol, prohibits both lexical and dynamic binding. This is mainly an
efficiency measure for threaded platforms, but also valueable in
expressing intent.
+ * new feature: UNC pathnames are now understood by the system on Windows.
+ * optimization: the compiler uses a specialized version of FILL when the
+ element type is know in more cases, making eg. (UNSIGNED-BYTE 8) case
+ almost 90% faster.
* optimization: accesses to potentially non-simple arrays where element type
is known are 50% faster.
* optimization: compiler now generates faster array typechecking code.
* improvement: pretty-printing loop has been implemented properly. (thanks
to Tobias Rittweiler)
* documentation: CLOS slot typechecing policy has been documented.
+ * bug fix: FILE-AUTHOR no longer signals an error on Windows.
+ * bug fix: SB-SPROF could be foiled by foreign code not have a frame
+ pointer, leading to memory faults. (thanks to Bart Botta)
* bug fix: better floating point exception handling on x86/OpenBSD.
(thanks to Josh Elsasser)
* bug fix: exit status from QUIT when called under --script was lost
* bug fix: signals delivered to threads started from foreign land (read:
directly by pthread_create, not by MAKE-THREAD) are redirected to a Lisp
thread by blocking all signals and resignalling.
+ * bug fix: SHARED-INITIALIZE initialized unbound :ALLOCATION :CLASS slots
+ from :INITFORM, if any.
changes in sbcl-1.0.28 relative to 1.0.27:
* a number of bugs in cross-compilation have been fixed, with the ultimate
projects / sbcl.git / blobdiff