ViewVC logotype

Contents of /src/general-info/release-19e.txt

Parent Directory Parent Directory | Revision Log Revision Log

Revision 1.28 - (show annotations)
Wed Feb 13 04:35:03 2008 UTC (6 years, 2 months ago) by rtoy
Branch: MAIN
CVS Tags: release-19e-base
Branch point for: release-19e-branch
Changes since 1.27: +26 -0 lines
File MIME type: text/plain
o Update from logs.
o Add note about some openSUSE systems needing to set ulimit -v.
1 ========================== C M U C L 19 e =============================
5 The CMUCL project is pleased to announce the release of CMUCL 19e.
6 This is a major release which contains numerous enhancements and
7 bugfixes from the 19d release.
9 CMUCL is a free, high performance implementation of the Common Lisp
10 programming language which runs on most major Unix platforms. It
11 mainly conforms to the ANSI Common Lisp standard. CMUCL provides a
12 sophisticated native code compiler; a powerful foreign function
13 interface; an implementation of CLOS, the Common Lisp Object System,
14 which includes multimethods and a metaobject protocol; a source-level
15 debugger and code profiler; and an Emacs-like editor implemented in
16 Common Lisp. CMUCL is maintained by a team of volunteers collaborating
17 over the Internet, and is mostly in the public domain.
19 New in this release:
21 * Supported system:
22 - Support for Mac OS X/Intel has been added.
24 * Issues
25 - One some openSUSE systems, cmucl will fail to start because it
26 can't map enough memory. This might be caused be a memory limit
27 that is set too low. Use "ulimit -a" to see the limit on
28 virtual memory. This can be adjusted with "ulimit -v <N>"
30 * Feature enhancements:
31 - Support for dynamic-extent added for ppc. However, it suffers
32 from the same problems with dynamic-extent as other platforms,
33 so it is disabled by default. Tests indicate that it does work
34 in simple situations.
35 - PARSE-TIME recognizes the format produced by C asctime/ctime.
36 (This change may break some other less commonly used patterns.)
37 - PARSE-TIME recognizes and discards any microseconds.
38 - PARSE-TIME checks that a specified day of the week matches the
39 actual day of the week given in the date. An error is signaled
40 if they are inconsistent.
41 - New option to SAVE-LISP allows creating executable Lisp images
42 that do not require a runtime loader.
43 Syntax: (save-lisp "filename" :executable t)
44 Currently supported on FreeBSD and Linux; work on a Solaris
45 version is underway.
46 Limitations: depends on files in "library:" to dump new
47 executable images.
48 - CMUCL's version of CLX has been replaced with telent CLX.
49 - Preliminary support for external formats. Currently only
50 iso8859-1 and utf-8 are supported. Utf-8 support is limited
51 since CMUCL only has 8-bit characters.
52 - UNIX-MPROTECT added to access mprotect.
54 * ANSI compliance fixes:
55 - BOA constructors with &AUX variables are handled better now.
56 - SHADOW accepts characters now.
57 - Default initargs are now passed correctly to initialize-instance
58 and shared-initialize.
59 - Several issues in formatted output of floats have been fixed:
60 o ~,dF won't print out extra digits if the number is too small.
61 o ~E sometimes erroneously printed the overflow filler instead
62 of the number.
63 o ~G has changed so that ~E is chosen more often. This is seen
64 when printing large numbers. Instead of printing lots of
65 zeroes, ~E is used. ~G now matches what Fortran would do.
66 o Inconsistencies between print and ~E are now gone. (See Trac
67 ticket #1.)
68 o Some incorrectly printed results for ~E have been fixed. (See
69 Trace ticket #12.)
71 * Bugfixes:
72 - Floating-point traps are now handled on ppc. Previously, no
73 traps were signalled and SET-FLOATING-POINT-MODES did nothing.
74 - FILE-POSITION no longer returns negative values for mapped
75 file-simple-stream's.
76 - Potential Version numbers that start with a leading 0 are no
77 longer treated as version numbers. Hence, "foo.~1~" has name
78 "foo", type nil, and version 1, but "foo.~01~" has type "~01~"
79 and version :NEWEST.
80 - A bug in type derivation for EXPT has been fixed. (expt x y)
81 for x of type (double-float (0d0) 1d0) and y of type
82 (double-float (0d0)) now returns (or (member 0d0) (double-float
83 (0d0) 1d0)) instead of (double-float 0d0 1d0), i.e., -0d0 is not
84 in the range.
85 - On sparc, the decoding of a trapping FP instruction is correct
86 now. Previously the wrong instruction was decoded, which
87 produced the wrong operation and operands in the arithmetic
88 error handler.
89 - Fix issue with UNIX:UNIX-MMAP handling of "large" addresses that
90 appeared to be negative numbers.
92 o Converting negative rationals to double-double-float's doesn't
93 produce wrong answers anymore.
94 o (float <negative bignum> 1w0) no longer returns a positive
95 result.
96 o Some issues with creation of DOUBLE-DOUBLE-FLOAT and (COMPLEX
97 DOUBLE-DOUBLE-FLOAT) have been fixed on sparc, ppc, and x86.
98 These seem to work, except there appears to be some bugs on x86
99 when compiling at speed 3 and safety 0.
100 o (INTEGER-DECODE-FLOAT <double-double-float>) was sometimes
101 returning the wrong integer value because the two components had
102 the wrong sign.
103 o Some issues with debugger printing out DOUBLE-DOUBLE-FLOATs and
104 (COMPLEX DOUBLE-DOUBLE-FLOAT)'s have been fixed.
105 o CLOS now recognizes that (COMPLEX DOUBLE-DOUBLE-FLOAT) is a
106 valid built-in class instead of a random object.
107 o Branch cuts for ASIN and ATANH for double-double-float's
108 should match the branches for double-float's.
109 o ATAN2 should correctly handle signed double-double-float
110 zeroes.
111 o FASL files containing -0w0 are now converted to -0w0 instead
112 of 0w0.
113 o SIN and TAN return -0w0 when the argument is -0w0.
114 Previously, they returned 0w0.
115 o Signed zeroes are handled better for addition, subtraction,
116 and multiplication. That is, the correct signed zero is
117 returned now.
118 o Overflow in addition, multiplication, and division returns
119 infinity if traps are disabled.
120 o EQL supports DOUBLE-DOUBLE-FLOAT's now.
121 o The printer and reader should now be consistent for
122 double-double-floats.
123 o Conversion of bignums and ratios to double-double-floats
124 should be more accurate.
125 o Double-double-float's should have print/read consistency now.
126 o TRUNCATE works now when given a DOUBLE-DOUBLE-FLOAT divisor.
127 o FORMATted output of DOUBLE-DOUBLE-FLOAT's should work.
128 - The assembler for ppc had some arguments for some instructions
129 in the wrong order, producing the wrong effect.
130 - When making displaced arrays, the element types are checked to
131 see if they are type equivalent. If not, an error is signaled.
132 - The reader for #= and ## has been enhanced to be much faster for
133 cases with a large number of shared objects. However, it is also
134 somewhat slower for simple cases.
135 - #p"..." now has a namestring and is treated as a pathname with
136 name ".." and type "".
137 - #p"..a" erroneously had directory (:relative). This has been
138 fixed so that directory = nil, name = ".", and type = "a".
139 - Compiling code using SIGNUM no longer causes a compiler error.
140 The defoptimizer for SIGNUM was missing a case for
141 double-double-float.
142 - MAPHASH no longer causes a type-error when the mapping function
143 calls (setf gethash) on the same table.
144 - NOTINLINE declarations are honored for local functions even if
145 they only have only one use. Previously, these would be inlined
146 anyway. This allows tracing of such functions.
147 - TRACE and UNTRACE should now work as expected for local
148 labels/flet functions. Untracing should work. Redefining a
149 function should automatically retrace the local functions if
150 they were traced previously.
151 - Callbacks should now work on systems where malloc'ed space does
152 not normally allow execution of code.
153 - The FLOAT-ACCURACY declaration has been removed. This should
154 have no affect on most user's code, unless they were using
155 this. The default is 53-bit (double-float) precision for
156 everything and the compiler takes care of the precision for the
157 appropriate ABI. It is the compiler's responsibility to make
158 sure single-precision floats are done correctly with
159 single-precision results. (This may be buggy currently.)
161 been removed.
162 - A compiler bug with type inferencing and deleting unsued
163 functions has been fixed.
164 - A compiler bug has been fixed where a source transformation was
165 incorrectly applied because the local variable happens to have a
166 function type and has the same name as a known function.
167 - On Darwin/x86, tracing with :encapsulate nil works better, and
168 tracing of labels/flets works better. However, there are still
169 issues with tracing. Returning to the repl after tracing
170 sometimes fails, and you must exit lisp completely.
171 - ~E should be faster now in some cases.
172 - The range over which sin/cos/tan would use the builtin
173 instruction on x86 has been reduced. Previously, values near
174 the limit would either produce result greater than 1 in absolute
175 value or cause a floating-point exception. Note that accuracy
176 is reduced when the builtin instructions are used for very large
177 arguments.
179 * Trac Tickets:
180 - #8 fixed so logs of bignums and ratios that won't fit into a
181 float can be computed, instead of signalling an error.
182 - #9 fixed. An error is generated if the number of days doesn't
183 match the number of days in the given month.
184 - #10 fixed. ROUND should now return correct answers for floats
185 bigger than most-positive-fixnum.
186 - #11 fixed. EQL handles double-double-float's correctly now.
187 - #1 fixed. prin1 and ~E should produce the same results.
188 - #12 fixed. (format t "~10,1,2,0,'*,,'DE" 1d-6) prints "0.1D-05"
189 now.
191 * Other changes:
192 - UNIX:UNIX-ERRNO accesses the thread errno value instead of the
193 global errno value.
194 - Floating point zero is now printed with an exponent of zero,
195 independent of any scale factor that might be used. Thus, we
196 get results like "0.0D+00" instead of "0.0D-5".
198 * Improvements to the PCL implementation of CLOS:
199 - Forward-referenced classes are allowed.
201 * Changes to rebuilding procedure:
202 - load-world.sh now supports a -p option to load the world without
203 PCL. This is mostly for cross-compiling which doesn't want PCL
204 loaded because it's not build during a cross-compile.
205 - make-dist.sh now defaults to bzip compression instead of gzip.
208 This release is not binary compatible with code compiled using CMUCL
209 19d; you will need to recompile FASL files.
211 See <URL:http://www.cons.org/cmucl/> for download information,
212 guidelines on reporting bugs, and mailing list details.
215 We hope you enjoy using this release of CMUCL!

  ViewVC Help
Powered by ViewVC 1.1.5