X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=NEWS;h=ebd61fc043810ac15c21f233bd65a78e4c3cccb5;hb=423d7e5434081f8813e5c2399e4da052bcd36b57;hp=d67ccfeb4e32bf9e4262745928707dc2ff7dbedf;hpb=dc981e6c25bbc2abd48c8d48a424c6bd55e905bb;p=sbcl.git diff --git a/NEWS b/NEWS index d67ccfe..ebd61fc 100644 --- a/NEWS +++ b/NEWS @@ -1,4 +1,117 @@ ;;;; -*- coding: utf-8; -*- +changes in sbcl-1.0.8 relative to sbcl-1.0.7: + * enhancement: experimental macro SB-EXT:COMPARE-AND-SWAP provides + atomic compare-and-swap operations on threaded platforms. + * enhancement: experimental function SB-EXT:RESTRICT-COMPILER-POLICY + allows assining a global minimum value to optimization qualities + (overriding proclamations and declarations). + * enhancement: closed over variables can be stack-allocated on x86 + and x86-64. + * performance bug fix: GETHASH and (SETF GETHASH) are once again + non-consing. + * optimization: slot definition lookup is now O(1). This speeds up + eg. SLOT-VALUE and (SETF SLOT-VALUE) with variable slot names. + * optimization: STRING-TO-OCTETS is now up to 60% faster for UTF-8. + * optimization: ASSOC and MEMBER can now be open-coded for all + combinations of keyword arguments when second argument is constant + and SPEED >= SPACE. In other cases a specialized version is + selected. + * bug fix: using obsoleted structure instances with TYPEP and + generic functions now signals a sensible error. + * bug fix: threads waiting on GET-FOREGROUND can be interrupted. + (reported by Kristoffer Kvello) + * bug fix: backtrace construction is now more careful when making + lisp-objects from pointers on the stack, to avoid creating bogus + objects that can be seen by the GC. + * bug fix: defaulting of values in contexts expecting more than 7 + variables now works on x86-64. (reported by Christopher Laux) + * bug fix: modifications to packages (INTERN, EXPORT, etc) are now + thread safe. + * bug fix: (SETF SYMBOL-PLIST) no longer allows assigning a non-list + as the property-list of a symbol. + * bug fix: DEFMETHOD forms with CALL-NEXT-METHOD in the method body, + in EVAL-WHEN forms with both :COMPILE-TOPLEVEL and :LOAD-TOPLEVEL + situations requested, are once again file-compileable. (reported + by Sascha Wilde) + +changes in sbcl-1.0.7 relative to sbcl-1.0.6: + * MOP improvement: support for user-defined subclasses of + SB-MOP:SPECIALIZER has been enhanced. The experimental interface + function SB-PCL:MAKE-METHOD-SPECIALIZERS-FORM, called as part of + the expansion of DEFMETHOD, is responsible for generating a form + which creates a list of specializers when evaluated. Additional + functions SB-PCL:[UN]PARSE-SPECIALIZER-USING-CLASS provide + debugging and introspective support. + * minor incompatible change: the (unsupported) spinlock interface + has changed: free spinlock now has the value NIL, and a held spinlock + has the owning thread as its value. + * enhancement: WITHOUT-INTERRUPTS now binds ALLOW-WITH-INTERRUPTS and + WITH-LOCAL-INTERRUPTS as local macros. Refer to documentation string + for details. + * enhancement: name of a socket-stream is now "a socket" instead of + "a constant string". + * enhancement: SB-POSIX now supports lockf(). (Thanks to Zach Beane.) + * enhancement: SB-POSIX now supports getcwd(). (Thanks to Tassilo Horn.) + * enhancement: SB-INTROSPECT:FUNCTION-ARGLIST shows nicer argument lists + for generic functions. (Thanks to Tobias C. Rittweiler) + * optimization: bignum printing speed has been improved by 20-40% + (depending on the bignum size.) + * bug fix: WITH-MUTEX and WITH-RECURSIVE-LOCK are now interrupt safe + on Linux. + * bug fix: the cache used by the CLOS to store precomputed effective + methods, slot offsets, and constant return values is now thread and + interrupt safe. + * bug fix: generic function dispatch function updating is now thread + and interrupt safe (in the sense that the known issues have been + fixed.) + * bug fix: ADD/REMOVE-METHOD is now thread and interrupt safe. + * bug fix: interning EQL-specializers is now thread and interrupt safe. + * bug fix: asdf systems with dependencies to the SB-POSIX or + SB-BSD-SOCKETS contribs can be loaded with :FORCE T. + * bug fix: interrupt safety of applicable method computation has been + improved. + +changes in sbcl-1.0.6 relative to sbcl-1.0.5: + * new contrib: sb-cover, an experimental code coverage tool, is included + as a contrib module. + * optimization: STRING-TO-OCTETS for unibyte encodings and UTF-8 is + significantly faster. + * optimization: calls of the form (AREF FOO (+ INDEX )) now + produce more efficient code on x86-64 if the compiler can determine + that (+ INDEX ) does not require a bounds check and FOO + has an element type at least 8 bits wide. + * enhancement: a new, experimental synchronous timeout facility is + provided. Refer to SB-SYS:WITH-DEADLINE for details. + * enhancement: when a symbol name conflict error arises, the + conflicting symbols are always printed with a package prefix. + (thanks to Kevin Reid) + * enhancement: stepping is now once again supported on the SPARC and + MIPS platforms. (It is also now more likely to work on CheneyGC + builds on the PPC.) + * enhancement: sb-sprof can now also track and report accurate call + counts. + * bug fixes: the treatment of non-standard subclasses of + SB-MOP:SPECIALIZER is more correct. + * incompatible change: PURIFY no longer copies the data from the + dynamic space into the static and read-only spaces on platforms + that use the generational garbage collector + * bug fix: GETHASH, (SETF GETHASH), CLRHASH and REMHASH are now + interrupt safe. + * bug fix: GC race condition occasionally resulting in crashes with + the error message "SIG_STOP_FOR_GC blocked at a bad place" has been + fixed. + * bug fix: &ENVIRONMENT variables in macro lambda lists can now be + declared ignored. + * bug fix: DEFSETF lambda lists without &ENVIRONMENT no longer cause + a STYLE-WARNING to be signalled (regression from 1.0.4.) + * bug fix: an asynchronous interrupt could previously leave the + system running with GC inhibited. + * bug fix: a DECLARE form evaluated at top-level now causes an error + rather than silently (or verbosely) returning NIL. + * bug fix: trying to dissassemble functions compiled at high DEBUG could + result in a error being signalled due to source form lookup errors. + (reported by Peter Graves) + changes in sbcl-1.0.5 relative to sbcl-1.0.4: * incompatible change: removed writer methods for host-ent-name, host-ent-addresses -- changing the values did not update the DNS @@ -12,11 +125,65 @@ changes in sbcl-1.0.5 relative to sbcl-1.0.4: in multithreaded application code. * optimization: GET-INTERNAL-REAL-TIME has been optimized on POSIX platforms. (thanks to James Anderson for the optimization hint) + * optimization: REPLACE, SUBSEQ, and COPY-SEQ are now optimized in + more cases. + * optimization: STRING-{EQUAL,LESSP,GREATER-P} and their NOT- + variants no longer cons. + * optimization: Direct calls to CHAR-{EQUAL,LESSP,GREATERP} and + their NOT- variants no longer cons. + * optimization: EQUAL hash tables no longer use SXHASH for objects + of all data types, but instead use an EQL hash for types for which + EQUAL is the same as EQL. + * optimization: the non-inlined generic versions of AREF and (SETF AREF) + are significantly faster. + * optimization: new STRING-OUTPUT-STREAM implementation is much + faster for large outputs and conses 30% less on average. + * enhancement: XREF information is now collected for references made + to global variables using SYMBOL-VALUE and a constant argument. + * enhancement: SIGINT now causes a specific condition + SB-SYS:INTERACTIVE-INTERRUPT to be signalled. + * bug fix: FILE-POSITION used to signal an error in some cases where + ANSI requires it to return NIL. + * bug fix: ADJUST-ARRAY is now interrupt-safe. + * bug fix: adding and removing fd-handlers is now interrupt-safe. + * bug fix: inlined calls to C now ensure 16byte stack alignment on + x86/Darwin. + * bug fix: bad type declaration in the CLOS implementation has + been fixed. (reported by James Anderson) + * bug fix: incorrect ROOM reporting on x86-64 has been fixed. + (thanks to Lutz Euler) + * bug fix: DEFSETF now allows &ENVIRONMENT and disallows &AUX as + required by the CLHS. (reported by Samium Gromoff) + * bug fix: dead unbound variable references now signal an error. + (reported by Marco Monteiro) + * bug fix: / with an unused value was being deleted in safe code. + (thanks to Marco Monteiro and Kevin Reid) * bug fix: number of characters that can be written onto a single line in a file is unlimited. - * bug fix: GC deadlocks from asynchronous interrupts has been fixed - by disabling interrupts for the duration of any - SB-SYS:WITHOUT-GCING section. + * bug fix: some GC deadlocks caused by asynchronous interrupts have + been fixed by inhibiting interrupts for when GC is disbled. + * bug fix: some interrupt safety issues with GETHASH, (SETF + GETHASH), CLRHASH and REMHASH have been fixed. + * bug fix: binding *BREAK-ON-SIGNALS* to a value that is not a type + specifier no longer causes infinite recursion. + * bug fix: SB-EXT:MUFFLE-CONDITIONS declarations no longer trigger a + bogus warning in DEFMETHOD bodies. (reported by Kevin Reid) + * bug fix: an &environment argument with the correct variable information + is passed to macros that are expanded during byte compilation. + (reported by Samium Gromoff) + * bug fix: a logic error was causing the hash function for bignums to + have excessive amounts of collisions. (reported by Faré Rideau) + * bug fix: modifying the contents of an array could change the return + value of SXHASH on that array, which is only allowed for strings + and bit vectors. (bug introduced in 0.9.16) + * improvement: the x86-64/darwin port now passes all tests (except + for the debugger tests) but should still be considered + experimental until this is fixed. + * improvement: a style-warning is signaled for CASE (etc) clauses with + duplicate keys. (thanks to Kevin Reid) + * improvement: macos/x86 and macos/x86-64 now use mach exception + handlers for dealing with illegal instructions (for trapping and + error handling) and memory protection violations (for GC). changes in sbcl-1.0.4 relative to sbcl-1.0.3: * new platform: experimental support for x86-64/darwin (MacOS).