-;;;; -*- coding: utf-8; -*-
+;;;; -*- coding: utf-8; fill-column: 78 -*-
+ * optimization: multidimensional array accesses in the absence of type
+ information regarding array rank are approximately 10% faster due to
+ open coding of ARRAY-RANK.
+ * bug fix: disable address space randomization Linux/x86-64 as well,
+ not just x86-64. (reported by Ken Olum)
+ * bug fix: #201; type inference for CONS and ARRAY types could derive
+ wrong results in the presence of eg. RPLACA or ADJUST-ARRAY.
+ * bug fix: special variables with a proclaimed specific subtype of FUNCTION
+ could not be assigned to or bound with PROGV. (reported by Lorenz
+ Mösenlechner)
+
+changes in sbcl-1.0.28 relative to 1.0.27:
+ * a number of bugs in cross-compilation have been fixed, with the ultimate
+ result that building under (at least) clisp should be much more reliable.
+ * minor incompatible changes: echo-streams now propagate unread-char to the
+ underlying input stream, and no longer permit unreading more than one
+ character.
+ * improvement: on x86/x86-64 Lisp call frames now have the same layout as C
+ frames, allowing for instance more reliable backtraces.
+ * improvement: the debugger REPL can now reference lexical variables
+ by name directly for code compiled with (DEBUG 3).
+ * improvement: errors from malformed declarations now have better source
+ paths associated with them. (thanks to Tobias Rittweiler)
+ * optimization: faster local calls on x86/x86-64
+ * bug fix: some error messages for out-of-bound array indexes confused the
+ index and the bound. (thanks to Stas Boukarev)
+ * bug fix: pretty printing malformed DEFPACKAGE forms (thanks to Sidney
+ Markowitz)
+ * bug fix: running regressions tests in shells without OSTYPE set now works.
+ (reported by Harald Hanche-Olsen)
+ * bug fix: more robust static space exhaustion signalling from
+ MAKE-STATIC-VECTOR (thanks to Daniel Lowe)
+ * bug fix: (SETF DOCUMENTATION) for anonymous function now throws the
+ docstring away instead of storing it under names such as (LAMBDA (X)).
+ (reported by Leslie Polzer)
+ * bug fix: timers could go off in the wrong order, be delayed indefinitely
+ (thanks to Ole Arndt for the patch)
+ * bug fix: RESTART-FRAME and RETURN-FROM-FRAME stack corruption
+ * bug fix: the discriminating function for PRINT-OBJECT no longer preserves
+ potentially-invalid effective methods in its cache.
+ * bug fix: SB-INTROSPECT:FIND-DEFINITION-SOURCE now works with funcallable
+ instances as well (thanks to Paul Khuong)
+ * bug fix: using RUN-PROGRAM does not interfere with SB-POSIX:WAIT,
+ SB-POSIX:WAITPID and their C equivalents.
+ * bug fix: RUN-PROGRAM does not crash on Darwin when stressed.
+
+changes in sbcl-1.0.27 relative to 1.0.26:
+ * new port: support added for x86-64 OpenBSD. (thanks to Josh Elsasser)
+ * new port: support added for x86-64 Solaris. (thanks to Alex Viskovatoff)
+ * improvement: the system either recovers from stack exhaustion or dies
+ properly as opposed to leaving the user uncertain of whether the handler
+ trampled on some random memory next to the stack or having to rely on
+ --lose-on-corruption (which is still a good idea to use in production
+ because stack exhaustion can happen in signal handlers which will likely
+ lead to hangs.)
+ * bug fix: fix gc related interrupt handling bug on ppc (regression from
+ 1.0.25.37, reported by Harald Hanche-Olsen)
+ * bug fix: work around signal delivery bug in darwin (regression from
+ 1.0.25.44, reported by Sidney Markowitz)
+ * bug fix: fix ERROR leaking memory (reported by David Thompson)
+
+changes in sbcl-1.0.26 relative to 1.0.25:
+ * incompatible change: an interruption (be it a function passed to
+ INTERRUPT-THREAD or a timer function) runs in an environment where
+ interrupts can be enabled. The interruption can use
+ WITH-INTERRUPTS or WITHOUT-INTERRUPTS as it sees fit. Use
+ WITHOUT-INTERRUPTS to avoid nesting of interruptions and
+ potentially running out of stack. Keep in mind that in the absence
+ of WITHOUT-INTERRUPTS some potentially blocking operation such as
+ acquiring a lock can enable interrupts.
+ * incompatible change: GC-OFF and GC-ON are removed, as they were
+ always unsafe. Use WITHOUT-GCING instead.
+ * new feature: runtime option --disable-ldb
+ * new feature: runtime option --lose-on-corruption to die at the
+ slightest hint of possibly non-recoverable errors: running out of
+ memory, stack, alien stack, binding stack, encountering a memory
+ fault, etc. In the absence of --lose-on-corruption a warning is
+ printed to stderr.
+ * enhancement: detect binding stack exhaustion
+ * enhancement: detect alien stack exhaustion on x86/x86-64
+ * improvement: generally more stable and reliable interrupt handling
+ * improvement: there is a per thread interruption queue,
+ interruptions are executed in order of arrival
+ * improvement: a repeating timer reschedules itself when the it has
+ finished, but expiration times are spaced equally. If an
+ expiration time is in the past it will trigger after a short grace
+ period that may give a chance to other things to run.
+ * optimization: slightly faster gc on multithreaded builds
+ * optimization: faster WITHOUT-GCING
+ * bug fix: when JOIN-THREAD signals an error, do it when not holding
+ important locks so that the debugger/handler doesn't produce
+ recursive errors or deadlock.
+ * bug fix: real-time signals are not used anymore, so no more
+ hanging when the system wide real-time signal queue gets full.
+ * bug fix: INTERRUPT-THREAD on a dying thread could produce memory
+ fault.
+ * bug fix: finalizers, gc hooks never run in a WITHOUT-INTERRUPTS
+ * bug fix: fix random memory faults related to interrupts on alpha
+ * bug fix: fix random memory faults related to interrupts on sparc
+ * bug fix: fix deadlocks related to starting threads
+ * bug fix: fix deadlines on locks on futex platforms
+ * bug fix: restore errno in signal handlers
+ * bug fix: fix deadlocks related to hash tables
+ * bug fix: fix deadlocks in pcl
+
+changes in sbcl-1.0.25 relative to 1.0.24:
+ * incompatible change: SB-INTROSPECT:FUNCTION-ARGLIST is deprecated, to be
+ removed later. Please use SB-INTROSPECT:FUNCTION-LAMBDA-LIST instead.
+ * new feature: SB-INTROSPECT:DEFTYPE-LAMBDA-LIST allows retrieval of
+ DEFTYPE lambda lists. (thanks to Tobias Rittweiler)
+ * enhancement: MUTEX-VALUE is to be superseded by MUTEX-OWNER that has a
+ better name and does not return values so stale on multiprocessor systems.
+ Also, HOLDING-MUTEX-P was added for about the only sane usage of
+ MUTEX-OWNER.
+ * improvement: unithread builds keep track of MUTEX-VALUE.
+ * improvement: reading from a TWO-WAY-STREAM does not touch the output
+ stream anymore making it thread safe to have a concurrent reader and
+ a writer, for instance, in a pipe.
+ * improvement: GET-SETF-EXPANDER avoids adding bindings for constant
+ arguments, making compiler-macros for SETF-functions able to inspect
+ their constant arguments.
+ * improvement: COMPILE-FILE reports times with millisecond accuracy
+ (thanks to Luis Oliveira)
+ * optimization: CHAR-CODE type derivation has been improved, making
+ TYPEP elimination on subtypes of CHARACTER work better. (reported
+ by Tobias Rittweiler, patch by Paul Khuong)
+ * bug fix: setting alien structure fields of type struct by value now
+ computes the right offset for the memory copy.
+ * bug fix: compilation problem involving inlined calls to aliens with
+ result type VOID. (reported by Ken Olum)
+ * bug fix: #235a; sequential inline expasion in different policies no
+ longer reuses the functional from the previous expansion site.
+ * bug fix: DEFTYPE no longer breaks on bodies consisting of a single
+ unquoted symbol. Regression from 1.0.22.8. (reported by Ariel Badichi)
+ * bug fix: named ENUMs in multiply-referenced alien record types no longer
+ cause an implied type redefinition. Regression from 1.0.21.29.
+ * bug fix: sign-extension of small signed return values now works with C
+ code compiled with gcc 4.3 or newer. (reported by Liam Healy)
+ * improvements to the Windows port:
+ ** SB-BSD-SOCKETS now works from saved cores as well. (reported by Stephen
+ Westfold, thanks to Rudi Schlatte)
+
+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.
+
+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)
+
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
Badichi)
* enhancement: :DONT-SAVE keyword argument has been added to
LOAD-SHARED-OBJECT for controlling interaction with
- SAVE-LISP-AND-DIE.
+ 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)
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
changes in sbcl-1.0.21 relative to 1.0.20:
* new feature: the compiler is able to track the effective type of a
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
- presense of non-foldable SATISFIES types.
+ 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:
* 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 Tobian Ritterweiler)
+ 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
default, and DISABLE-DEBUGGER and ENABLE-DEBUGGER also affect
the low-level debugger.
* enchancement: RUN-PROGRAM is now able to extract the file-descriptor
- from SYNONYM-STREAM and TWO-WAY-STEAMS provided they can be decomposed
+ from SYNONYM-STREAM and TWO-WAY-STREAM provided they can be decomposed
down to an SB-SYS:FD-STREAM, allowing direct communication in
more cases. Temporary files and pipes are still used as a fallback
strategy.