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sbcl.1.0.24

sbcl_1_0_24

changes in sbcl-1.0.24 relative to 1.0.23:
  * new feature: ARRAY-STORAGE-VECTOR provides access to the underlying data
    vector of a multidimensional SIMPLE-ARRAY.
  * new feature: the system now signals a continuable error if standard
    readtable modification is attempted. (thanks to Tobias Rittweiler)
  * new feature: DIRECTORY has been extended with a non-standard keyword
    argument :RESOLVE-SYMLINKS. (thanks to TC-Rucho)
  * enhancement: SB-BSD-SOCKETS:MAKE-SOCKET-STREAM keyword argument handling
    has been robustified and documented better. (thanks to Robert Goldman)
  * optimization: faster generic arithmetic dispatch on x86 and x86-64.
  * optimization: FORMAT ~D and ~F are now approximately 5% faster.
  * tradeoff: constant FORMAT control strings are now compiled unless
    SPACE > SPEED (previously only when SPEED > SPACE.)
  * bug fix: Red Hat Enterprise 3 mmap randomization workaround. (thanks
    to Thomas Burdick)
  * bug fix: DEFCLASS and ENSURE-CLASS-USING-CLASS are now expected to
    be thread safe.
  * bug fix: lexical type declarations are now correctly reported by
    SB-CLTL2. (reported by Larry D'Anna)
  * bug fix: STRING-TO-OCTETS did not handle :START properly when
    using UTF-8 as external format. (thanks to Luis Oliveira)
  * bug fix: errors from invalid fill-pointer values to (SETF FILL-POINTER)
    are signalled correctly. (thanks to Stas Boukarev)
  * bug fix: SET-MACRO-CHARACTER accepts NIL as the readtable
    designator. (thanks to Tobias Rittweiler)
  * bug fix: SET-DISPATCH-MACRO-CHARACTER accepts NIL as the readtable
    designator, and returns T instead of the function. (thanks to
    Tobias Rittweiler)
  * bug fix: direct superclasses of STANDARD-CLASS and
    FUNCALLABLE-STANDARD-CLASS now default to STANDARD-OBJECT and
    FUNCALLABLE-STANDARD-OBJECT as required by AMOP.
  * bug fix: compiling a call to SLOT-VALUE with a constant slot-name
    when no class with the named slot yet exists no longer causes a
    compile-time style-warning.
  * bug fix: :ALLOCATION :CLASS slots are type-checked properly
    in safe code. (reported by Didier Verna)
  * bug fix: #430; nested structure constructors can stack allocate.
  * bug fix: on some 64-bit platforms dynamic space size was truncated
    to #xffff0000 bytes. (reported by Benjamin Lambert)
  * bug fix: setting *READ-SUPPRESS* to T no longer renders the default
    REPL unusable. (reported by Daniel Herring)
  * bug fix: return values of READ-SEQUENCE did not take :START into
    account on file streams, regressions since 1.0.12.22. (reported by
    Thomas Russ, patch by Paul Khuong)
  * bug fix: using SET or (SETF SYMBOL-VALUE) to change the value of a
    method specializer used to confuse permuation vector optimization.
  * bug fix: system inserted bogus implicit type declarations for local
    special variables in DEFMETHOD bodies.
  * bug fix: #354; duplicated frames in backtraces due to
    non-tail-call-optimized XEPs to functions with return type NIL
    have been elimited.
  * bug fix: #357; MAKE-INSTANCE/SHARED-INITIALIZE now
    initializes structure object slots according to DEFSTRUCT initforms,
    and DEFSTRUCT forms :INCLUDEind structure classes defined using
    DEFCLASS :METACLASS STRUCTURE-CLASS now inherit their initforms.
    (reported by Bruno Haible and Stephen Wilson)
  * bug fix: #395; fill-pointer output streams used now support
    element-type BASE-CHAR as well.
  * bug fix: compiler error when attempting to derive return value of
    ARRAY-ELEMENT-TYPE when the array type was a union of intersection
    types.
  * bug fix: address-spaces overlapped on OpenBSD. (thanks to Josh
    Elsasser)
  * bug fix: Mac OS X binaries should now be portable between Leopard
    and Tiger.

sbcl.1.0.23

sbcl_1_0_23

changes in sbcl-1.0.23 relative to 1.0.22:
  * enhancement: when disassembling method functions, disassembly
    for the associated fast function is also produced.
  * enhancement: system stores DEFTYPE lambda-lists, so DESCRIBE can
    report them.
  * optimization: printing with *PRINT-PRETTY* true is now more
    efficient as long as the object being printed doesn't require
    special handling by the pretty printer.
  * bug fix: slot symbol-macros from WITH-SLOTS inside DEFMETHOD bodies
    now interact correctly with type declarations.
  * partial bug fix: PCL detects infinite recursion during wrapper
    validation. (thanks to Attila Lendvai)
  * bug fix: #426; nested function calls are inlined properly.
    Previously if FOO was an inline function, in calls of the form
    (FOO (FOO ...)) the outer call was not inlined.
  * bug fix: long long arguments passed in registers to alien
    functions on PowerPC Linux and NetBSD are now handled correctly
    when preceded by SYSTEM-AREA-POINTERs. (reported by Josh Elsasser)

sbcl.1.0.22

sbcl_1_0_22

changes in sbcl-1.0.22 relative to 1.0.21:
  * minor incompatible change: LOAD-SHARED-OBJECT no longer by default looks
    for the shared object in the current directory, but passes the native
    namestring of the designated pathname to the operation system's shared
    object loading function as-it.
  * minor incompatible change: --disable-debugger toplevel option now takes
    effect before processing of initialization files and --eval or --load
    options.
  * new feature: new commandline argument: --script, which supports
    shebang lines. See documentation for details. (based on work by
    Kevin Reid)
  * new feature: SAVE-LISP-AND-DIE can save current values of
    --dynamic-space-size and --control-stack-size in the executable core,
    causing it to skip normal runtime option processing. See documentation
    for details. (thanks to Zach Beane)
  * enhancement: inoccous calls to EVAL or generic functions dispatching
    on subclasses of eg. STREAM no longer cause compiler notes to appear.
  * enhancement: the system no longer resignals errors from --load and
    --eval toplevel arguments as SIMPLE-ERRORS, which caused restarts
    associated with the original error to be lost. (thanks to Ariel
    Badichi)
  * enhancement: :DONT-SAVE keyword argument has been added to
    LOAD-SHARED-OBJECT for controlling interaction with
    SAVE-LISP-AND-DIE, and UNLOAD-SHARED-OBJECT can be used to undo
    the effects of an earlier LOAD-SHARED-OBJECT call.
  * bug fix: ADJUST-ARRAY on multidimensional arrays used bogusly give
    them a fill pointer unless :DISPLACED-TO or :INITIAL-CONTENTS were
    provided. (reported by Cedric St-Jean)
  * bug fix: circularity handling in the reader did not treat raw
    structure slots correctly. (reported by Cedric St-Jean)
  * bug fix: SERVE-EVENT occasionally signaled an error about bogus
    file descriptors when there were none.
  * bug fix: DEFINE-COMPILER-MACRO support of destructuring lambda-lists
    was broken. (reporteed by Willem Broekema)
  * bug fix: SB-EXT:NATIVE-NAMESTRING on Windows did not work on
    pathnames without a directory.
  * bug fix: COMPILE-FILE did not warn about undefined variable
    references at toplevel, and LOAD of the resulting fasl did
    not signal an error.
  * bug fix: functions with non-required arguments used to end up with
    (SB-C::&OPTIONAL-DISPATCH ...) as their name.
  * bug fix: redefining a function with non-required arguments didn't
    update the system's knowledge about its call signature properly.
  * bug fix: fixed #431; incompatible alien record type redefinitions
    are detected and handled. (reported by Neil Haven)
  * bug fix: using RESTRICT-COMPILER-POLICY with DEBUG 3 could cause
    PROGV miscompilation. (reported by Matthias Benkard, patch by Juho
    Snellman)
  * bug fix: on x86 and x86-64 backtraces were sometimes truncated
    after alien stack frames.
  * bug fix: strings passed to mk{s,d}temp lacked null termination

sbcl.1.0.21

sbcl_1_0_21

changes in sbcl-1.0.21 relative to 1.0.20:
  * new feature: the compiler is able to track the effective type of a
    generic function across method addition and removal.
  * new feature: SB-EXT:ATOMIC-INCF allows atomic incrementation of
    appropriately typed structure slots without locking.
  * new feature: SB-EXT:CALL-WITH-TIMING provides access to timing
    information like those gathered by TIME using a programming-friendly
    interface.
  * new feature: TIME reports time taken even if the form performs a
    non-local transfer of control.
  * enhancement: reduced conservativism on GENCGC platforms: on
    average 45% less pages pinned (measured from SBCL self build).
  * bug fix: SB-EXT:COMPARE-AND-SWAP on SYMBOL-VALUE can no longer
    mutate constant symbols or violate declaimed type of the symbol.
  * bug fix: SB-THREAD:SIGNAL-SEMAPHORE could fail to wakeup threads
    sleeping on the semaphore in heavily contested semaphores.
  * bug fix: semaphores and condition variables were not interrupt
    safe.
  * bug fix: SB-THREAD:CONDITION-WAIT doesn't allow waits on mutexes
    owned by other threads anymore.
  * bug fix: FIND on lists called KEY outside the specified
    subsequence. (reported by budden)
  * bug fix: LOG doesn't use single-float intermediate results when
    given mixed integer and double-float arguments, leading to better
    precision. (reported by Bob Felts)
  * bug fix: LOG with base zero returned values of inconsistent type.

sbcl.1.0.20

sbcl_1_0_20

changes in sbcl-1.0.20 relative to 1.0.19:
  * minor incompatible change: OPTIMIZE qualities
    SB-C::STACK-ALLOCATE-DYNAMIC-EXTENT, SB-C::STACK-ALLOCATE-VECTOR,
    and SB-C::STACK-ALLOCATE-VALUE-CELLS no longer exist. See documentation
    and SB-EXT:*STACK-ALLOCATE-DYNAMIC-EXTENT* for details.
  * documentation: some slot access efficiency guidelines have been
    added to the user manual.
  * optimization: ASSOC-IF, ASSOC-IF-NOT, MEMBER-IF, MEMBER-IF-NOT,
    RASSOC, RASSOC-IF, and RASSOC-IF-NOT are now equally efficient
    as ASSOC and MEMEBER.
  * optimization: calls to ASSOC, MEMBER, and RASSOC can be transformed
    to more efficient EQ-comparison versions more often.
  * optimization: enhanced derivation of DOLIST iteration variable type
    for constant lists.
  * optimization: constant folding of simple (LIST ...) forms as DOLIST
    arguments.
  * optimization: runtime lookup of function definitions can be
    elided in more cases, eg: (let ((x 'foo)) (funcall foo)).
  * optimization: compiler is able to derive the return type of
    (AREF (THE STRING X) Y) as being CHARACTER.
  * optimization: CLRHASH on empty hash-tables no longer does pointless
    work. (thanks to Alec Berryman)
  * optimization: REPLACE deftransforms don't punt when :START1 or
    :START2 is given
  * bug fix: compiling DESTRUCTURING-BIND on constant list arguments
    no longer emits a code deletion note. (reported by Andrew
    Gasparovic)
  * bug fix: bogus odd-number-of-keywords STYLE-WARNINGs from calls to
    functions with an odd number of &OPTIONAL arguments, a &REST
    argument, and one or more &KEY arguments at the call site.
  * bug fix: STYLE-WARNINGs for functions with both &OPTIONAL and &KEY
    arguments appeared at call sites as well.
  * bug fix: fixed #425; CLOSE drops input buffers from streams, so
    READ-LINE &co can no longer read from them afterwards. (reported
    by Damien Cassou)
  * bug fix: fixed #427: unused local aliens no longer cause compiler
    breakage. (reported by Stelian Ionescu, Andy Hefner and Stanislaw
    Halik)
  * bug fix: non-local exit from a WITH-ALIEN form no longer causes
    alien-stack leakage. (reported by Andy Hefner)
  * bug fix: PROGV signals an error when an attempt to violate declared
    type of a variable or bind a constant is made.
  * bug fix: SET signals an error when an attempt to violate declared
    type of a variable is made.
  * bug fix: restart computation during the execution of a restart
    test function no longer causes infinite recursion. (reported by
    Michael Weber)
  * bug fix: calling SB-COVER:REPORT with a non-directory pathname now
    signals an error. (thanks to Pierre Mai)
  * bug fix: EXPORT left symbol unexported in conflict situations.
    (thanks to Michael Weber)
  * bug fix: correctly handle name conflicts involving CL:NIL.
    (thanks to Michael Weber)
  * bug fix: RESOLVE-CONFLICT restart for name conflicts handles
    conflicts arising from USEing package with conflicting symbols
    correctly. (thanks to Michael Weber)

sbcl.1.0.19

sbcl_1_0_19

changes in sbcl-1.0.19 relative to 1.0.18:
  * new feature: user-customizable variable SB-EXT:*MUFFLED-WARNINGS*;
    warnings that go otherwise unhandled will be muffled if they are
    of the type that's the value of this variable.
  * optimization: stack allocation is slightly more efficient on x86
    and x86-64.
  * bug fix: DEFSTRUCT forms with user-specified :CONSTRUCTOR options,
    where a raw slot always is initialized using the initform whose
    type is not know sufficiently well a compile-time are now compiled
    correctly. (reported by John Morrison)
  * bug fix: compiler no longer makes erronous assumptions in the
    presence of non-foldable SATISFIES types.
  * bug fix: stack analysis missed cleanups of dynamic-extent
    arguments in non-let-converted calls to local functions.
  * improvements to the Windows port:
    ** adjusted address spaces for building on both Win32 and
       Win64. (thanks for John Connors)
  * fixed some bugs revealed by Paul Dietz' test suite:
    ** interval arithmetic during type derivation used inexact integer
       to single-float coercions.
    ** arithmetic operations involving large integers and single
       floats give the same results in compiled and interpreted code.
    ** deriving the result type of COERCE no longer signals an error
       if the derived type of the second argument is a MEMBER type
       containing invalid type specifiers.
    ** ADJOIN with constant NIL as second argument works correctly.
    ** FUNCTION-KEYWORDS was called SB-PCL::FUNCTION-KEYWORD-PARAMETERS.

sbcl.1.0.18

sbcl_1_0_18

changes in sbcl-1.0.18 relative to 1.0.17:
  * minor incompatible change: SB-SPROF:WITH-PROFILING now by default
    profiles only the current thread.
  * minor incompatible change: changes to SYMBOL-VALUE of constants
    defined with DEFCONSTANT now signal an error.
  * enhancement: SB-SPROF now has support for wallclock profiling,
    and is also able to profile specific threads. REPORT output
    has also additional sorting options.
  * enhancement: better pretty-printing of DEFPACKAGE forms.  (Thanks
    to Michael Weber)
  * optimization: structure allocation has been improved
    ** constructors created by non-toplevel DEFSTRUCTs are ~40% faster.
    ** out of line constructors are ~10% faster.
    ** inline constructors are ~15% faster.
    ** inline constructors are capable of dynamic extent allocation
       (generally on x86 and x86-64, in some cases on other platforms
       as well.)
  * optimization: simple uses of HANDLER-CASE and HANDLER-BIND no
    longer cons.
  * optimization: file compiler is now able to coalesce non-circular
    lists, non-base strings, and bit-vectors. Additionally, constants
    are never referenced through SYMBOL-VALUE at runtime.
  * optimization: code defining methods on PRINT-OBJECT (and other
    generic functions in the COMMON-LISP package) now loads faster.
  * bug fix: EAI_NODATA is deprecated since RFC 3493. Stop using it
    in sb-bsd-sockets.
  * bug fix: if COMPILE-FILE aborts due to an unwind, the partial
    fasl is now deleted. (reported by Attila Lendvai)
  * bug fix: READ-LINE always returned NIL for the last line in files.
    (reported by Yoshinori Tahara)
  * bug fix: more accurate disassembly annotations of foreign function
    calls.  (thanks to Andy Hefner)
  * bug fix: trimming non-simple strings and non-string string
    designators when the there is nothing to trim works properly.
    (thanks to James Knight)
  * new feature: SB-POSIX bindings for mlockall, munlockall, and setsid.
    (thanks to Travis Cross)
  * fixed some bugs revealed by Paul Dietz' test suite:
    ** NIL is a valid function name (regression at 1.0.13.38)
    ** FILL on lists was missing its return value (regression at 1.0.12.27)
    ** STRING-TRIM, STRING-LEFT-TRIM, and STRING-RIGHT-TRIM did not respect
       fill pointers properly (regression at 1.0.12.23)
    ** STRING-TRIM, STRING-LEFT-TRIM, and STRING-RIGHT-TRIM did not respect
       displacement indices properly (regression at 1.0.12.23)

sbcl.1.0.17

sbcl_1_0_17

changes in sbcl-1.0.17 relative to 1.0.16:
  * temporary regression: user code can no longer allocate closure
    variable storage on stack, due to bug 419 without explicitly
    requesting it. Please consult sbcl-devel for advice if you need to
    use this feature in the meanwhile.
  * new feature: runtime argument --control-stack-size can be used to
    adjust thread default control stack size.
  * enhancement: improved TIME output
    ** all times are reported using the measured accuracy (milliseconds
       for real and GC times, microseconds for everything else.)
    ** processor cycle counts on x86 and x86-64.
    ** interpreted forms are counted for both evaluator modes.
    ** number of lambdas converted by the compiler is reported.
    ** CPU percentage report (computed from real and total run time.)
    ** more comprehensive run time reporting, using a condenced format
    ** interperted form, lambda, and page fault counts are omitted
       when zero.
  * optimization: ADJOIN and PUSHNEW are upto ~70% faster in normal
    SPEED policies.
  * optimization: APPEND is upto ~10% faster in normal SPEED policies.
  * optimization: two argument forms of LAST are upto ~10% faster
    in normal SPEED policies.
  * optimization: NCONC no longer needs to heap cons its &REST list
    in normal SPEED policies.
  * bug fix: SB-FLUID build feature no longer breaks the build. (thanks
    to Sidney Markowitz)
  * bug fix: UNION and NUNION work with :TEST-NOT once more,
    regression since 1.0.9.1. (thanks to Eric Marsden)
  * bug fix: result of MAKE-ARRAY can be stack allocated - regression
    since 1.0.15.36. (thanks to Paul Khuong)
  * bug fix: LAST when always returned the whole list when given a bignum
    as the second argument.
  * bug fix: dynamic extent allocation of nested lists and vectors
    could leak to otherwise accessible parts.
  * bug fix: invalid optimization of heap-allocated alien variable
    reference.
  * bug fix: fasl header checking is less vulnerable to different
    platform word lengths.
  * bug fix: more correct assembler syntax for GNU binutils
    2.18.50.0.4 support.  (thanks to Marijn Schouten)
  * bug fix: fix ECASE warnings from CMUCL-as-xc-host.  (reported by
    Andreas Franke)
  * bug fix: the fopcompiler can handle LOCALLY forms (with no
    declarations) successfully.  (reported by Attila Lendvai)

sbcl.1.0.16

sbcl_1_0_16

changes in sbcl-1.0.16 relative to 1.0.15:
  * minor incompatible change: revert the changes to sb-posix's error
    signaling added in 1.0.14.
  * minor incompatible change: change PROBE-FILE back to returning
    NIL whenever we can't get a truename, as was the case before 1.0.14.
  * minor incompatible change: SB-BSD-SOCKETS:NAME-SERVICE-ERROR now
    inherits from ERROR instead of just CONDITION.
  * new feature: SB-INTROSPECT can provide source locations for instances
    as well. (thanks to Tobias Rittweiler)
  * optimization: binding special variables now generates smaller code
    on threaded platforms.
  * optimization: MEMBER and ASSOC are over 50% faster for :TEST #'EQ
    and cases where no :TEST is given but the compiler can infer that
    the element to search is of type (OR FIXNUM (NOT NUMBER)).
  * optimization: better LOGNOT on fixnums.
  * optimization: modular arithmetic for a particular requested width
    is implemented using a tagged representation unless a better
    representation is available.
  * fixed bug 423: TRULY-THE and *CHECK-CONSISTENCY* interaction.
  * bug fix: SB-BSD-SOCKETS:MAKE-INET-ADDRESS checks the input string
    for wellformedness and returns a specialized vector. (reported by
    Francois-Rene Rideau)
  * bug fix: FIND-CLASS was not thread-safe. (reported by Attila Lendvai)
  * bug fix: ~R was broken for vigtillions. (thanks to Luis Oliveira)
  * bug fix: attempt to obtain *SCHEDULER-LOCK* recursively when
    unscheduling timer at the same time as another timer fires.
  * bug fix: don't reschedule timers for dead threads.
  * bug fix: periodic polling was broken. (thanks to Espen S Johnsen)
  * bug fix: copying output from RUN-PROGRAM to a stream signalled
    bogus errors if select() was interrupted.
  * enhancement: add support for fcntl's struct flock to SB-POSIX.

sbcl.1.0.15

sbcl_1_0_15

changes in sbcl-1.0.15 relative to sbcl-1.0.14:
  * enhancement: cleaner backtraces for interactive interrupts, as
    well as other cases where the interesting frames used to be
    obscured by interrupt handling frames.
  * enhancement: untracing a whole package using (UNTRACE "FOO") is
    now supported, and tracing a whole package using (TRACE "FOO") now
    traces SETF-functions as well.
  * enhancement: implement SB-POSIX:MKTEMP and SB-POSIX:MKDTEMP.
  * SB-DEBUG:PRINT-FRAME-CALL now prints the entry-point kind even
    when SB-DEBUG:*SHOW-ENTRY-POINT-DETAILS* is NIL.
  * unreadably printed representation of hash-tables now includes
    weakness if any.
  * bug fix: partially fixed #188: type propagation from assignments
    is now more efficient.
  * bug fix: fixed #407: (COERCE X 'SINGLE-FLOAT) and (COERCE X
    'DOUBLE-FLOAT) are not flushable.
  * bug fix: on x86 and x86-64 pointer based EQ-hashing now uses the
    full address of the object, and none of the tag bits.
  * bug fix: readably printing hash-tables now respects other printer
    control variables.  (reported by Cedric St-Jean)
  * bug fix: compiler gave a bogus STYLE-WARNING for the :SYNCHRONIZED
    keyword with MAKE-HASH-TABLE.
  * bug fix: export SB-POSIX:MKSTEMP.
  * bug fix: SORT was not interrupt safe.
  * bug fix: XREF accounts for the last node of each basic-block as
    well.
  * bug fix: MAKE-INSTANCE optimizations interacted badly with
    non-keyword :DEFAULT-INITARGS in the presence of :BEFORE/:AFTER
    methods on SHARED-INITIALIZE.  (thanks to Matt Marjanovic)
  * bug fix: the CTOR optimization for MAKE-INSTANCE should no longer
    create obsolete instances in the case of redefinition or
    obsoletion of a superclass.  (thanks to Andy Hefner)
  * bug fix: Support for the Alpha architecture has been revived; it had
    suffered somewhat from lack of maintenance since sbcl-1.0.
  * improvements to the Windows port:
     ** The system detects the codepage to use at startup, instead of
        using the value from the saved core. (thanks to Kei Suzuki)