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Diff of /sml/trunk/NOTES/HISTORY

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sml/trunk/HISTORY revision 773, Mon Jan 8 16:18:37 2001 UTC sml/trunk/NOTES/HISTORY revision 2277, Tue Jan 30 17:07:30 2007 UTC
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1  This is the HISTORY file for the Yale SML/NJ CVS repository.  This is the HISTORY file for the SML/NJ repository.
2    
3  An entry should be made for _every_ commit to the repository.  An entry should be made for _every_ commit to the repository.
4  The entries in this file will be used when creating the README  The entries in this file will be used when creating the README
# Line 7  Line 7 
7    
8  The form of an entry should be:  The form of an entry should be:
9    
10  Name:  
11  Date:  Name: Your Name (web page or e-mail)
12  Tag: <post-commit CVS tag>  Date: yyyy/mm/dd hh:mm:ss
13    Tag: cvs-tag-for-this-change
14    Description:
15    
16    ----------------------------------------------------------------------
17    Name: Matthias Blume (http://www.tti-c.org/blume/)
18    Date: 2007/01/30 11:05:00 CST
19    Description:
20    
21    Added SMLofNJ.shiftArgs which is like a shell's "shift" command.
22    Modified CM's startup code to use shiftArgs as it processes
23    command line arguments.  This way, the init code in each .sml-file
24    or library that is mentioned at the top level will see only
25    those arguments that have not yet been processed at this point.
26    In other words, the init code can "seize control" and process the
27    remaining command line.
28    
29    ----------------------------------------------------------------------
30    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
31    Date: 2007/01/28
32    Description:
33    
34    Added the UTF8 structure and signature from the Moby compiler to
35    the SML/NJ library (and the CML library).  These modules will replace
36    the version in the ml-lpt-lib.
37    
38    ----------------------------------------------------------------------
39    Name: Matthias Blume (http://www.tti-c.org/blume/)
40    Date: 2007/01/26 15:10:00 CST
41    Description:
42    
43    Added entries to handle ml-lpt-lib.cm in installer.
44    
45    ----------------------------------------------------------------------
46    Name: Matthias Blume (http://www.tti-c.org/blume/)
47    Date: 2006/12/15 11:10:00 CST
48    Tag: release-110.61
49    Description:
50    
51    New working release (110.61).  NEW BOOTFILES!
52    
53    This supersedes the pre-brown-paper-bug release (see below).
54    
55    ----------------------------------------------------------------------
56    Name: Matthias Blume (http://www.tti-c.org/blume/)
57    Date: 2006/12/15 11:00:00 CST
58    Description:
59    
60    Fixed brown-paper-bag bug with CM's pathname handling, which made
61    installation fail under Win32.
62    
63    ----------------------------------------------------------------------
64    Name: Matthias Blume (http://www.tti-c.org/blume/)
65    Date: 2006/12/14 12:00:00 CST
66    Description:
67    
68    Obsolete!
69    
70    [New working release (110.61).  NEW BOOTFILES!]
71    
72    ----------------------------------------------------------------------
73    Name: John Reppy (http://cs.uchicago.edu/~jhr)
74    Date: 2006/14/06 09:50:00 CST
75    Description:
76    
77    Fixed the code in runtime/c-libs/posix-tty/{tcgetattr,tcsetattr}.c to
78    get the c_cc termios data copied correctly.  Also moved the allocation
79    of the string to avoid problems if it caused a GC.
80    
81    Thanks to Timothy Bourke for the bug report and fix.
82    
83    ----------------------------------------------------------------------
84    Name: Matthias Blume (http://www.tti-c.org/blume)
85    Date: 2006/12/08 09:50:00 CST
86    Description:
87    
88    Added code to CM's "standard shell tool" implementation which
89    causes it to tolerate (with a warning) the situation where the shell
90    command fails (e.g., due to the shell command's non-existence)
91    as long as all target files exist.
92    
93    This makes it possible to, e.g., build ml-yacc from sources even if
94    svn checkout messed up the time stamps on files in such a way that
95    yacc.grm is younger than yacc.grm.sml or yacc.grm.sig.  (Ml-yacc would
96    be needed to re-process yacc.grm, but obviously it might not yet be
97    available at that time.)
98    
99    ----------------------------------------------------------------------
100    Name: John Reppy (http://cs.uchicago.edu/~jhr)
101    Date: 2006/12/06 12:06:00 CST
102    Description:
103    
104    Fixed the types of recvVecFrom, recvVecFrom', recvVecFromNB, and
105    recvVecFromNB' in the SOCKET signature.  This error is actually
106    in the SML Basis specification too.
107    
108    ----------------------------------------------------------------------
109    Name: Matthias Blume (http://www.tti-c.org/blume/)
110    Date: 2006/12/05 22:40:00 CST
111    Description:
112    
113    CM now reports undefined anchors as errors and aborts execution
114    rather than silently pressing on using bogus values.
115    
116    ----------------------------------------------------------------------
117    Name: Matthias Blume (http://www.tti-c.org/blume/)
118    Date: 2006/11/29 10:00:00 CST
119    Description:
120    
121    Use Say.vsay for printing the "[autoloading]" message, so
122    #set CM.Control.verbose false (or -Ccm.verbose=false) can be used
123    to suppress them.
124    
125    ----------------------------------------------------------------------
126    Name: Matthias Blume (http://www.tti-c.org/blume/)
127    Date: 2006/11/10 11:00:00 CST
128    Description:
129    
130    Fixed bug in CM where "with:" specifications that affect compilation
131    (as opposed to parsing) were ignored.
132    
133    ----------------------------------------------------------------------
134    Name: Matthias Blume (http://www.tti-c.org/blume/)
135    Date: 2006/11/09 14:30:00 CST
136    Tag: release-110.60
137    Description:
138    
139    New working release (110.60).  NEW BOOTFILES!
140    
141    This is the first subversion-hosted release.  There are also changes
142    to the directory layout.  Here is a table:
143    
144    (All pathnames are relative to the SML/NJ "root" directory.)
145    
146      config -> config
147    
148      src/cm -> base/cm
149      src/compiler -> base/compiler
150      src/runtime -> base/runtime
151      src/system -> base/system
152    
153      src/cm/pgraph -> pgraph
154    
155      src/READMES -> base/READMES
156      src/$notefile -> base/NOTES/$notefile
157         for <notefile> in BOOT CVSNOTES CYGWININSTALL HISTORY INSTALL
158                           MACOSXINSTALL WININSTALL
159    
160      src/smlnj-lib -> smlnj-lib
161      src/MLRISC -> MLRISC
162      ckit -> ckit
163      src/cml -> cml
164      src/eXene -> eXene
165      src/heap2asm -> heap2asm
166      src/lexgen -> lexgen
167      src/ml-burg -> ml-burg
168      src/ml-lex -> ml-lex
169      src/ml-yacc -> ml-yacc
170      src/ml-nlffi-lib -> nlffi/lib
171      src/ml-nlffigen -> nlffi/gen
172      src/smlnj-c -> smlnj-c
173      src/tools/TraceDebugProf -> trace-debug-profile
174    
175    In addition, there is also a new
176    
177      ml-lpt
178    
179    directory containing two new program generator tools: ml-ulex and
180    ml-antlr (a lexer generator that handles unicode and an ANTRL-inspired
181    LL(k) parser generator). These tools are currently "beta-quality"
182    
183    The latest versios of the sources can now be obtained anonymously
184    via subversion.  For this, it is useful to first check out
185    
186       svn://smlnj-gforge.cs.uchicago.edu/smlnj/admin
187    
188    and put the resulting directory on your shell's PATH.  This provides
189    access to three shell scripts: checkout-all.sh, stat-all.sh,
190    and refresh-all.sh.
191    
192    To create a freshly checked-out copy of the sources, do
193    
194       checkout-all.sh [dir]
195    
196    where dir is the optional SML/NJ root directory (default is ".").
197    
198    This creates the above directory layout.  Each subdirectory of
199    the root is under individual subversion control.  The stat-all.sh
200    and refresh-al.sh scripts apply "svn stat" or "svn update" to
201    each of these subtrees.
202    
203    ----------------------------------------------------------------------
204    Name: Matthias Blume (http://www.tti-c.org/blume/)
205    Date: 2006/11/02 12:20:00 CST
206    Description:
207    
208    Reorganized directory layout.
209    
210    This is a temporary solution, more reorganization is to come.
211    
212    The basic idea is to have a number of toplevel trees, each corresponding
213    to a well-defined part of the overall system.  Each part can be
214    maintained individually, even in separate source repositories,
215    although currently we still serve everything out of the main
216    smlnj-gforge tree.
217    
218    Installer and and scripts have been updated to reflect the new
219    layout.  The installer (base/src/system/smlnj/installer) is now
220    "scriptable" to avoid burning too much knowledge about the
221    layout into SML source code.  The main script used by the installer
222    is in config/actions.
223    
224    The main change is that many of the subdirectories of what used to
225    be known as "src" have moved to the toplevel.  The "src" directory
226    itself has moved down into a subtree called "base".  (We may eventually
227    get rid of the extra level of indirection represented by "src".)
228    
229    The layout is now as follows:
230    
231      toplevel tree name | default repository
232                         | (using gf=svn://smlnj-gforge.cs.uchicago.edu/smlnj)
233      -------------------+----------------------------------------------------
234      config             | $gf/config/trunk
235                         |
236      base               | $gf/sml/trunk
237                         |
238      smlnj-lib          | $gf/smlnj-lib/trunk
239      MLRISC             | $gf/MLRISC/trunk
240                         |
241      ml-yacc            | $gf/ml-yacc/trunk
242      ml-lex             | $gf/ml-lex/trunk
243      ml-burg            | $gf/ml-burg/trunk
244      lexgen             | $gf/lexgen/trunk
245      heap2asm           | $gf/heap2asm/trunk
246                         |
247      cml                | $gf/cml/trunk
248      eXene              | $gf/eXene/trunk
249      ckit               | $gf/ckit/trunk
250      nlffi              | $gf/nlffi/trunk
251                         |
252      smlnj-c            | $gf/smlnj-c/trunk
253    
254    In $gf/admin there are a few useful shell scripts for checking out
255    and maintaining the entire collection of trees:
256    
257       admin/checkout-all.sh [dir]
258          -- optionally creates dir and checks out all trees from their
259             default repositories; if dir is missing, checkout into .
260       admin/refresh-all.sh [dir]
261          -- looks at all trees (from the above list) in dir (default: .)
262             and runs "svn update" if the tree exists and is under
263             subversion control;
264             non-existing or non-subversion trees are skipped
265       admin/stat-all.sh [dir]
266          -- like refresh-all.sh, but runs "svn stat" instead
267    
268    ----------------------------------------------------------------------
269    Name: Matthias Blume (http://www.tti-c.org/blume/)
270    Date: 2006/10/05 11:30:00 CDT
271    Tag: blume-20061005-merge-amd64
272    Description:
273    
274    Merged code for AMD64 backend (Mike Rainey's work).
275    Everything is hooked up but untested.
276    
277    ----------------------------------------------------------------------
278    Name: Matthias Blume (http://www.tti-c.org/blume/)
279    Date: 2006/05/17 14:00:00 CST
280    Tag: Release_110_59
281    Description:
282    
283    New working version (110.59).  NEW BOOTFILES!
284    
285    I am freezing 110.59.  Changes other than the version-number increase:
286    
287      eXene:
288    
289         * committed changes to eXene from Alley Stoughton:
290             "fixed bugs in X authorization and resource handling, as well
291              as in the pile and viewport widgets"
292    
293      Runtime:
294        * fixed linking problem with NetBSD 3.x.
295    
296      Lexgen:
297        * lexgen tool handles non-ascii characters in 7-bit mode the same
298          way that ml-lex does
299    
300        * lexgen propagates exceptions the same way that ml-lex does
301    
302      CML:
303        * Fixed a bug in the SyncVar polling functions (iGetPoll,
304          mTakePoll, and mGetPoll) that could lead to livelock.
305    
306    ----------------------------------------------------------------------
307    Name: Matthias Blume (http://www.tti-c.org/blume/)
308    Date: 2006/05/12 15:20:00 CST
309    Tag: blume-20060515-makedepend
310    Description:
311    
312    Implemented ml-makedepend (i.e., CM.sources) in a better (more robust)
313    way.  This should hopefully fix the ml-makedepend problem permanently.
314    
315    ----------------------------------------------------------------------
316    Name: Matthias Blume (http://www.tti-c.org/blume/)
317    Date: 2006/05/12 15:15:00 CST
318    Tag: blume-20060512-makedepend
319    Description:
320    
321    Fixed long-standing bug with ml-makedepend where it would output a
322    spurious dependency to a non-existing file.  (This is a simple fix.
323    It might need further looking into.)
324    
325    ----------------------------------------------------------------------
326    Name: Matthias Blume (http://www.tti-c.org/blume/)
327    Date: 2006/04/20 10:30:00 CDT
328    Tag: blume-20060420-heap2exec
329    Description:
330    
331    Committed patches received from Johannes 5 Joemann (joemann@befree.free.de)
332    that enable heap2exec under Linux and FreeBSD.
333    
334    ----------------------------------------------------------------------
335    Name: John Reppy
336    Date: 2006/04/14
337    Tag:
338    Description:
339    
340    MLRISC changes:
341      1) renamed GAS_PSEUDO_OPS to AS_PSEUDO_OPS and put it in its own file.
342      2) added support for NOTB and XORB operators in pseudo-op expressions
343      3) added DarwinPseudoOp functor that supports Darwin's assembler syntax.
344      4) added support for 64-bit integer literals
345    
346    ----------------------------------------------------------------------
347    Name: Matthias Blume (http://www.tti-c.org/blume/)
348    Date: yyyy/mm/dd
349    Tag: Release_110_58
350    Description:
351    
352    New working version (110.58).  NEW BOOTFILES!
353    
354    ----------------------------------------------------------------------
355    Name: Matthias Blume (http://www.tti-c.org/blume/)
356    Date: 2006/03/01 22:15:00 CST
357    Tag: blume-20060301-lexgen
358    Description:
359    
360    Incorporated several bugfixes to lexgen.  Compiler now compiles to
361    fixpoint when using lexgen instead of ml-lex.
362    
363    ----------------------------------------------------------------------
364    Name: Matthias Blume (http://www.tti-c.org/blume/)
365    Date: 2006/02/28 22:45:00 CST
366    Tag: blume-20060228-lexgen
367    Description:
368    
369    Removed ml-flex and added lexgen instead, using Aaron Turon's newly
370    provided tarball.  The generated lexers still have problems.
371    
372    ----------------------------------------------------------------------
373    Name: Matthias Blume (http://www.tti-c.org/blume/)
374    Date: 2006/02/26 23:30:00 CST
375    Tag: blume-20060226-ml-flex
376    Description:
377    
378    Removed ml-flex' dependency on regexp-lib.cm.  Turned installation
379    of ml-flex on by default.
380    
381    ----------------------------------------------------------------------
382    Name: Matthias Blume (http://www.tti-c.org/blume/)
383    Date: 2006/02/24 16:30:00 CST
384    Tag: blume-20060224-ml-flex
385    Description:
386    
387    Added ml-flex sources.  Partially integrated, but should not be
388    turned on yet!  (Read: leave it commented-out in config/targets!)
389    
390    ----------------------------------------------------------------------
391    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
392    Date: 2006/02/23
393    Tag: jhr-20060223-x86-64
394    Description:
395    Changes to support building on x86-64 systems (using the 32-bit mode).
396    Also cleaned up signal handling on Linux.  Support for pre-2.2 Linux
397    kernels dropped.
398    
399    ----------------------------------------------------------------------
400    Name: Allen Leung (leunga (at) reservoir (dot) com)
401    Date: 2006/02/22 15:07:00 EST
402    Tag: leunga-20060222-mdl-gen
403    Description:
404    
405      CM has changed.  Updated the script for rebuilding the MLRISC generated
406    files.
407    
408    ----------------------------------------------------------------------
409    Name: Matthias Blume (http://www.tti-c.org/blume/)
410    Date: 2006/02/14 17:30:00 CST
411    Tag: blume-20060214-intel-mac
412    Description:
413    
414    Hooked code for Darwin-specific Intel ABI into main compiler.
415    (This is a temporary solution which relies on the fact that the
416    compiler itself does not use NLFFI.  Eventually we need to divorce
417    intel mac from generic x86 unix code and make separate sets of binaries.)
418    
419    ----------------------------------------------------------------------
420    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
421    Date: 2006/02/13
422    Tag: jhr-20060213-intel-mac
423    Description:
424    Changed MLRISC x86 CCalls for partial support of MacOS X ABI.
425    
426    ----------------------------------------------------------------------
427    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
428    Date: 2006/02/06
429    Tag: jhr-20060206-intel-mac
430    Description:
431    Changes to support MacOS X on Intel hardware.  The C-calls support in
432    MLRISC must also be updated to support the MacOS X ABI.
433    
434    ----------------------------------------------------------------------
435    Name: Matthias Blume (http://www.tti-c.org/blume/)
436    Date: 2005/12/16 00:15:00 CST
437    Tag: blume-20051216-cm
438    Description:
439    
440    Improved error reporting and handling in CM.
441    
442    ----------------------------------------------------------------------
443    Name: Matthias Blume (http://www.tti-c.org/blume/)
444    Date: 2005/11/21 14:00:00 CST
445    Tag: blume-20051121-html-lib
446    Description:
447    
448    Enabling $/html-lib.cm in config/preloads did not work.  This is fixed
449    now.  (Since the anchor mapping for html-lib.cm is not yet in effect
450    at the time when config/preloads is processed, the library has to
451    be referred to by another name.  In 110.57 this would be
452    $SMLNJ-LIB/HTML/html-lib.cm.  I arranged for $smlnj/smlnj-lib/html-lib.cm
453    to be valid as well.)
454    
455    Thanks to Todd Wilson (Fresno) for alerting me to this issue.
456    
457    ----------------------------------------------------------------------
458    Name: Matthias Blume (http://www.tti-c.org/blume/)
459    Date: 2005/11/19 13:45:00 CST
460    Tag: Release_110_57
461    Description:
462    
463    Moved release tag for 110.57.
464    
465    ----------------------------------------------------------------------
466    Name: Matthias Blume (http://www.tti-c.org/blume/)
467    Date: 2005/11/19 23:35:00 CST
468    Tag: blume-20051119-fish
469    Description:
470    
471    Fixed a problem in config/install.sh where it tries to "fish" the
472    name of the CM metadata directory from the wrong place (because
473    the physical location of basis.cm has changed).  Also, corrected the
474    path anchor for $/html-lib.cm.  (Thanks to M. Fluet for pointing out
475    these problems.)
476    
477    ----------------------------------------------------------------------
478    Name: Matthias Blume (http://www.tti-c.org/blume/)
479    Date: 2005/11/16 14:30:00 CST
480    Tag: blume-orig-110_57
481    Description:
482    
483    New working version (110.57).  NEW BOOTFILES!
484    
485    UPDATE: The release tag has been moved to include a fix for a brown-paper-
486            bag glitch (see above).
487    
488    ----------------------------------------------------------------------
489    Name: Matthias Blume (http://www.tti-c.org/blume/)
490    Date: 2005/11/16 10:25:00 CST
491    Tag: blume-22051116-btrace
492    Description:
493    
494    Fixed problem with bogus exception message when using back-trace
495    facility.
496    
497    ----------------------------------------------------------------------
498    Name: Matthias Blume (http://www.tti-c.org/blume/)
499    Date: 2005/11/15 22:35:00 CST
500    Tag: blume-22051115-array2copy
501    Description:
502    
503    Added simple implementation of Array2.copy.  (Warning: mostly untested.)
504    
505    ----------------------------------------------------------------------
506    Name: Matthias Blume (http://www.tti-c.org/blume/)
507    Date: 2005/11/15 21:35:00 CST
508    Tag: blume-22051115-versiontool
509    Description:
510    
511    Reversed change to src/system/smlnj/internals/versiontool.cm.  This
512    file gets loaded as a tool -- by the equivalent of CM.make during the
513    run of CMB.make.  Thus, CMB's path configuration is meaningless for
514    it.  Instead, it has the status of "user code", so it should use
515    $/basis.cm to refer to the Basis library.  (At least that's true for
516    the purpose of bootstrapping the previous change.  In the future it
517    might make sense to have versiontool.cm refer to
518    $smlnj/basis/basis.cm, i.e., the version of the Basis that the
519    compiler itself uses.)
520    
521    Also patched src/system/testml to have it activate those extra anchor
522    bindings in config/extrapathconfig.
523    
524    ----------------------------------------------------------------------
525    Name: Matthias Blume (http://www.tti-c.org/blume/)
526    Date: 2005/11/15 16:35:00 CST
527    Tag: blume-22051115-libraries
528    Description:
529    
530    This change affects the way the following libraries are tied into
531    the system:
532    
533       $/basis.cm
534       $/smlnj-lib.cm
535       $/pp-lib.cm
536       $/controls-lib.cm
537       $/html-lib.cm
538       $/ml-yacc-lib.cm
539    
540    These libraries are now internally (as seen from the source code
541    of the implementation itself) known by the following names:
542    
543       $smlnj/basis/basis.cm
544       $smlnj/smlnj-lib/smlnj-lib.cm
545       $smlnj/smlnj-lib/pp-lib.cm
546       $smlnj/smlnj-lib/controls-lib.cm
547       $smlnj/smlnj-lib/html-lib.cm
548       $smlnj/ml-yacc/ml-yacc-lib.cm
549    
550    This makes it possible to work with code that requires different
551    versions of these libraries, and which refers to these libraries using
552    their "default" names (i.e., the first set of names above).  In other
553    words, one can un-define or re-define those default names without
554    compromising the proper functioning of the compiler itself.
555    
556    A similar procedure had already been performed for several of the
557    MLRISC libraries that are linked into the compiler.  I did some
558    cleanup on this code.
559    
560    A new file in the config directory (named extrapathconfig) is
561    responsible for setting up path anchors that the compiler itself does
562    not need, but that are typically required by user code.
563    
564    ----------------------------------------------------------------------
565    Name: Matthias Blume
566    Date: 2005/11/07 17:05:00 CST
567    Tag: blume-20051107-slice
568    Description:
569    
570    Fixed erroneous out-of-bounds test in the "update" function of
571    various *ArraySlice modules.  (Thanks to Vesa A. Norrman for pointing
572    out the problem.)
573    
574    Pushed some Basis changes through ML-Lex, CML, and eXene.
575    
576    ----------------------------------------------------------------------
577    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
578    Date: 2005/11/07
579    Description:
580    Fixed a Basis incompatibility: The depreciated function Substring.all
581    was removed (use Substring.full instead).
582    
583    ----------------------------------------------------------------------
584    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
585    Date: 2005/11/05
586    Description:
587    Tweaked interval set API in SML/NJ library; see the CHANGES file for details.
588    
589    ----------------------------------------------------------------------
590    Name: Matthias Blume (http://www.tti-c.org/blume/)
591    Date: 2005/11/02 16:25:00 CST
592    Tag: blume-20051102-hex
593    Description:
594    
595    * Runtime system bootstrap code now accepts hex digits in BOOTLIST
596      in either upper case or lower case format.
597    * Pushed changes to names of Pack<N>{Big,Little} structures through
598      CML and eXene.
599    
600    ----------------------------------------------------------------------
601    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
602    Date: 2005/11/02
603    Description:
604    Fixed a Basis incompatibility: Pack<N>{Big,Little} structures should
605    be called PackWord<N>{Big,Little}.
606    
607    ----------------------------------------------------------------------
608    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
609    Date: 2005/10/28
610    Description:
611    Fixed a minor Basis incompatibility: hex digits should be upper case.
612    
613    ----------------------------------------------------------------------
614    Name: Matthias Blume (blume (at) tti - c (dot) org)
615    Date: 2005/10/25 16:00:00 CDT
616    Tag: Release_110_56
617    Description:
618    
619    New working version (110.56).  NEW BOOTFILES!
620    
621    ----------------------------------------------------------------------
622    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
623    Date: 2005/10/25
624    Description:
625    Added interval sets to utility library (signatures INTERVAL_DOMAIN
626    and INTERVAL_SET, and functor IntervalSetFn).
627    
628    ----------------------------------------------------------------------
629    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
630    Date: 2005/10/14
631    Description:
632    Add Zhong Shao's fix for datatype equality functions.
633    
634    ----------------------------------------------------------------------
635    Name: Allen Leung (leunga (at) reservoir (dot) com)
636    Date: 2005/10/14 12:30:00 EST
637    Tag: leunga-20051014-x86-spill
638    Description:
639    
640    Bug fix a bug found by Carl Hauser.
641    There was a typo in the reload code for FCMP in x86SpillInstr.sml.
642    
643    ----------------------------------------------------------------------
644    Name: Allen Leung (leunga (at) reservoir (dot) com)
645    Date: 2005/10/14 11:15:00 EST
646    Tag: leunga-20051014-x86-asm
647    Description:
648    
649    Removed some debugging code in file x86Asm.sml.
650    The function emit_operand was printing out debugging output.
651    
652    ----------------------------------------------------------------------
653    Name: John Reppy
654    Date: 2005/07/27
655    Tag:
656    Description:
657    
658    Fixed ml-lex to recognize "\r" as representing carriage return.
659    
660    ----------------------------------------------------------------------
661    Name: John Reppy
662    Date: 2005/07/27
663    Tag:
664    Description:
665    
666    Fixed ml-yacc to work on files with non-native end-of-line
667    encodings (e.g., Windows text file on a Unix system).
668    
669    ----------------------------------------------------------------------
670    Name: John Reppy
671    Date: 2005/07/20
672    Tag:
673    Description:
674    
675    Added changes from Dominic Evans (oldmanuk (at) gmail (dot) com)
676    to support HPUX 11.
677    
678    ----------------------------------------------------------------------
679    Name: John Reppy
680    Date: 2005/07/06
681    Tag:
682    Description:
683    
684    Changes to the SML/NJ library.  See smlnj-lib/CHANGES for details.
685    
686    ----------------------------------------------------------------------
687    Name: Matthias Blume (blume (at) tti - c (dot) org)
688    Date: 2005/07/06 00:45:00 CDT
689    Tag: blume-20050706-slice-copy
690    Description:
691    
692    Fixed reversed logic for deciding whether to "copy up" or "copy down"
693    in *-array-slice.sml.
694    
695    ----------------------------------------------------------------------
696    Name: Allen Leung (leunga (at) reservoir (dot) com)
697    Date: 2005/05/31 17:00:00 EST
698    Tag: leunga-20050531-cygwin-fault-2
699    Description:
700    
701    A typo in the cygwin code fixed.
702    
703    ----------------------------------------------------------------------
704    Name: Allen Leung (leunga (at) reservoir (dot) com)
705    Date: 2005/05/31 16:47:00 EST
706    Tag: leunga-20050531-cygwin-fault
707    Description:
708    
709    Updated Cygwin's fault/signal handling to match the Windows version.
710    Updated the export list.
711    
712    ----------------------------------------------------------------------
713    Name: Matthias Blume (blume (at) tti - c (dot) org)
714    Date: 2005/05/18 13:35:00 CDT
715    Tag: Release_110_54
716    Description:
717    
718    New working version (110.54).  NEW BOOTFILES!
719    
720    ----------------------------------------------------------------------
721    Name: Matthias Blume (blume (at) tti - c (dot) org)
722    Date: 2005/05/18 11:58:00 CDT
723    Tag: blume-20050518-installer
724    Description:
725    
726    Added support scripts for Mac OS X PackageMaker and modified
727    config/install.sh so that it supports re-dumping a heap image
728    after customization.
729    
730    ----------------------------------------------------------------------
731    Name: Matthias Blume (blume (at) tti - c (dot) org)
732    Date: 2005/05/18 10:55:00 CDT
733    Tag: blume-20050518-realdiv-noovld
734    Description:
735    
736    Un-overloaded / to work around bug in overloading resolution code.
737    
738    ----------------------------------------------------------------------
739    Name: Matthias Blume (blume (at) tti - c (dot) org)
740    Date: 2005/05/16 23:50:00 CDT
741    Tag: blume-20050516-redump-heap
742    Description:
743    
744    Added mechanism for re-creating a heap file for the interactive system
745    after configuration variables have been changed.
746    
747       CM.redump_heap : string -> unit
748    
749    This is much like SMLofNJ.exportML, but starting from the resulting
750    heap does not return to the caller of CM.redump_heap but
751    restarts the interactive system from scratch.  The original call of
752    CM.redump_heap does not return but ends the interactive session.
753    Thus, CM.redump_heap is a lot like SMLofNJ.exportFn.
754    
755    Internally, redump_heap winds the dynamic execution context back to
756    the point where the original heap image was created and re-executes
757    the heap image generation code in the boot code.
758    
759    ----------------------------------------------------------------------
760    Name: Matthias Blume (blume (at) tti - c (dot) org)
761    Date: 2005/05/09 21:55:00 CDT
762    Tag: blume-20050509-word64
763    Description:
764    
765    Added a hack to the existing hack known as Word64 to make fromString
766    behave correctly.  I am still not sure whether Word64.scan will work
767    as specified with respect to the interaction of radix and prefix.
768    
769    ----------------------------------------------------------------------
770    Name: Allen Leung (leunga (at) reservoir (dot) com)
771    Date: 2005/05/04 11:50:00 EST
772    Tag: leunga-20050504-checkgc
773    Description:
774    
775    Added a gc protocol checking phase.  This phase is enabled with
776    the flag "check-gc".  "debug-check-gc" turns on the verbose mode.
777    
778    ----------------------------------------------------------------------
779    Name: Matthias Blume (blume (at) tti - c (dot) org)
780    Date: 2005/05/04 10:45:00 CDT
781    Tag: blume-20050504-intinf
782    Description:
783    
784    Fixed a bug in the implementation of div and mod for IntInf.
785    Thanks to Neophytos Michael for reporting the problem.
786    
787    ----------------------------------------------------------------------
788    Name: Matthias Blume (blume (at) tti - c (dot) org)
789    Date: 2005/05/04 10:35:00 CDT
790    Tag: blume-20050504-join
791    Description:
792    
793    Added a "join" combinator to the ParserComb module in smlnj-lib.cm.
794    
795    ----------------------------------------------------------------------
796    Name: Matthias Blume (blume (at) tti - c (dot) org)
797    Date: 2005/02/28 23:40:00 CST
798    Tag: blume-20050228-mVar
799    Description:
800    
801    Fixed serious bug (brown paper bag variety) in new implementation of
802    structure Atom in CML.  (I had accidentally used a mailbox instead of
803    an mvar, leaving the door open for races.)
804    
805    ----------------------------------------------------------------------
806    Name: Matthias Blume (blume (at) tti - c (dot) org)
807    Date: 2005/02/25 15:00:00 CST
808    Tag: Release_110_53
809    Description:
810    
811    New working version (110.53).  NEW BOOTFILES!
812    
813    ----------------------------------------------------------------------
814    Name: Matthias Blume (blume (at) tti - c (dot) org)
815    Date: 2005/02/25 14:50:00 CST
816    Tag: blume-20050225-susp
817    Description:
818    
819    Brought back SMLofNJ.Susp.  The underlying suspension type is the one
820    implemented in Core -- which means that it is the same as the one used
821    by the lazy extension.
822    
823    ----------------------------------------------------------------------
824    Name: Matthias Blume (blume (at) tti - c (dot) org)
825    Date: 2005/02/24 16:50:00 CST
826    Tag: blume-20050224-cml-atom
827    Description:
828    
829    Simpler and at the same time more general implementation of structure
830    Atom in CML.
831    
832    ----------------------------------------------------------------------
833    Name: Matthias Blume (blume (at) tti - c (dot) org)
834    Date: 2005/02/15 17:35:00 CST
835    Tag: blume-20050215-tools
836    Description:
837    
838    Created new "tools" directory under "src" and moved "TraceDebugProf"
839    there.
840    
841    ----------------------------------------------------------------------
842    Name: Matthias Blume (blume (at) tti - c (dot) org)
843    Date: 2005/02/10 17:55:00 CST
844    Tag: blume-20050210-longlong
845    Description:
846    
847    Implemented "long long" arguments and results for NLFFI.  (Only the
848    PPC/MacOS implementation is complete, the other backends still need to
849    be updated.)
850    
851    ----------------------------------------------------------------------
852    Name: Matthias Blume (blume (at) tti - c (dot) org)
853    Date: 2005/01/24 17:40:00 CST
854    Tag: blume-20050124-mlyacc
855    Description:
856    
857    Minor cleanup in ML-Yacc rule printing mechanism.  This should fix a
858    problem with certain "as" patterns which previously got rendered
859    using incorrect syntax.
860    
861    ----------------------------------------------------------------------
862    Name: Matthias Blume (blume (at) tti - c (dot) org)
863    Date: 2005/01/18 12:00:00 CST
864    Tag: blume-20050118-profile
865    Description:
866    
867    Made time profiling code (interrupt handler) in runtime system aware
868    of new array representation.
869    
870    ----------------------------------------------------------------------
871    Name: Matthias Blume (blume (at) tti - c (dot) org)
872    Date: 2005/01/14 18:00:00 CST
873    Tag: blume-20050114-heap2exec
874    Description:
875    
876    Implemented new (but still experimental) heap2exec facility.  This is
877    tested under Mac OS X and should work under Linux (will test shortly).
878    It will probably also work on the Sparc (will test some time later).
879    
880      - removed old "HACKED_STANDALONE" hack from runtime
881    
882    To be able to test this, uncomment the request for "heap2asm" in
883    config/targets prior to installation.  (Notice that this is different
884    from "heap2exec" mentioned below.  Not a typo.)
885    
886    To perform an actual test, run the command
887    
888       $ bin/heap2exec heapfile execfile
889    
890    (You can put heap2exec on your shell's path.)
891    
892    For example, run
893    
894      $ bin/heap2exec bin/.heap/ml-yacc.ppc-darwin mly
895    
896    This will create a standalone executable called "mly" which you can
897    then invoke directly as a command.
898    
899    ----------------------------------------------------------------------
900    Name: Matthias Blume (blume (at) tti - c (dot) org)
901    Date: 2005/01/07 11:44:00 CST
902    Tag: blume-20050107-mlstring
903    Description:
904    
905    fixed off-by-one error in ML_STRING macro (globals.c)
906    
907    ----------------------------------------------------------------------
908    Name: Matthias Blume (blume (at) tti - c (dot) org)
909    Date: 2004/12/23 18:00:00 CST
910    Tag: blume-20041223-santa
911    Description:
912    
913    Made ml-build script "smarter" (but only very little).
914    
915    ----------------------------------------------------------------------
916    Name: Matthias Blume (blume (at) tti - c (dot) org)
917    Date: 2004/12/21 15:05:00 CST
918    Tag: blume-20041221-longlong
919    Description:
920    
921    * Implemented access to signed and unsigned long long data in NLFFI.
922    (The parameter-passing part of the picture has not complete. But
923    data structure access seems to work.)
924    
925    * Fixed CM's incorrect assumption that the PPC is little-endian.
926      (On the Mac, it is big-endian.  And that's currently our only
927      PPC platform.)
928    
929    ----------------------------------------------------------------------
930    Name: Matthias Blume (blume (at) tti - c (dot) org)
931    Date: 2004/12/21 12:50:00 CST
932    Tag: blume-20041221-memory
933    Description:
934    
935    Some cleanup in the $c/memory.cm library: separated some concerns by
936    moving allocation code and memory access code each into their own
937    files.
938    
939    ----------------------------------------------------------------------
940    Name: Allen Leung (leunga (at) reservoir (dot) com)
941    Date: 2004/12/17 16:12:00 EST
942    Tag: leunga-20041217-cygwin-smlnj-home
943    Description:
944    
945        The Unix I/O library of SML/NJ on cygwin does not understand
946    Windows style pathname, so problems arise when SMLNJ_HOME is set
947    to a Windows style pathname.  _run-sml now converts SMLNJ_HOME
948    to a POSIX pathname on cygwin.
949    
950    ----------------------------------------------------------------------
951    Name: Matthias Blume (blume (at) tti - c (dot) org)
952    Date: 2004/12/16 13:35:00 CST
953    Tag: Release_110_52
954    Description:
955    
956    Last-minute changes incorporated into 110.52.  Release tag moved.
957    
958    The changes:
959       - HashString.hashString' -> HashString.hashSubstring
960       - bug fix in UnivariateStats
961    
962    ----------------------------------------------------------------------
963    Name: Matthias Blume (blume (at) tti - c (dot) org)
964    Date: 2004/12/15 23:40:00 CST
965    Tag: blume-20041215-hashSubstring
966    Description:
967    
968    - HashString.hashString' -> HashString.hashSubstring
969    - corresponding changes in atom.sml
970    - "de-compressed" (aka. un-obfuscated) code for UnivariateStats and
971      added some comments
972    
973    ----------------------------------------------------------------------
974    Name: Matthias Blume (blume (at) tti - c (dot) org)
975    Date: 2004/12/15 15:30:00 CST
976    Tag: (Release_110_52)
977    Description:
978    
979    New working version (110.52).  NEW BOOTFILES!
980    
981    ----------------------------------------------------------------------
982    Name: Matthias Blume (blume (at) tti - c (dot) org)
983    Date: 2004/12/15 12:45:00 CST
984    Tag: blume-20041215-spaces
985    Description:
986    
987    More on the space problem (this time for Win32).
988    
989    ----------------------------------------------------------------------
990    Name: Matthias Blume (blume (at) tti - c (dot) org)
991    Date: 2004/12/14 17:30:00 CST
992    Tag: blume-20041214-spaces
993    Description:
994    
995    Hacked some of the scripts (in particular: the installer) to cope with
996    spaces in filenames a bit better.  But beware: the current "solution"
997    is likely still full of bugs and inherently incomplete.  (We need to
998    do away with those shell scripts for a comprehensive solution.)
999    
1000    ----------------------------------------------------------------------
1001    Name: Matthias Blume (blume (at) tti - c (dot) org)
1002    Date: 2004/12/13 14:45:00 CST
1003    Tag: blume-20041213-ml-makedepend
1004    Description:
1005    
1006    Fixed bug in code for ml-makedepend.
1007    
1008    ----------------------------------------------------------------------
1009    Name: Matthias Blume (blume (at) tti - c (dot) org)
1010    Date: 2004/12/09 16:30:00 CST
1011    Tag: blume-20041209-statistics
1012    Description:
1013    
1014    Added two simple but potentially useful statistics modules to SML/NJ Library.
1015    (See CHANGES file there.)
1016    
1017    ----------------------------------------------------------------------
1018    Name: Matthias Blume (blume (at) tti - c (dot) org)
1019    Date: 2004/12/01 16:50:00 CST
1020    Tag: blume-20041201-atom
1021    Description:
1022    
1023    smlnj-lib:
1024    
1025      Added function HashString.hashString' for substrings.
1026      Hand-inlined CharVector.foldl into HashString (for speed).
1027      Modified implementation of structure Atom to avoid extracting
1028      strings from substrings unless necessary.
1029      (Also see CHANGES file for smlnj-lib.)
1030    
1031    ----------------------------------------------------------------------
1032    Name: Matthias Blume (blume (at) tti - c (dot) org)
1033    Date: 2004/11/24 22:15:00 CST
1034    Tag: blume-20041124-cml
1035    Description:
1036    
1037    Made sure CML compiles when Position = Int64.
1038    
1039    ----------------------------------------------------------------------
1040    Name: Matthias Blume (blume (at) tti - c (dot) org)
1041    Date: 2004/11/24 14:30:00 CST
1042    Tag: blume-20041124-position
1043    Description:
1044    
1045    The compiler can now be compiled in a mode that makes structure Position
1046    equal to Int64.  The default, however, is unchanged (Position = Int31)
1047    for the time being.
1048    
1049    To enable 64-bit positions, use the following procedure:
1050    
1051    1. Start sml
1052    2. Autoload $smlnj/cmb.cm (if not already autoloaded)
1053    3. Type
1054          #set (CMB.symval "USE_64_BIT_POSITIONS") (SOME 1);
1055    4. Run CMB.make() as usual.
1056    
1057    This is barely tested.  The only test so far was a little SML program
1058    counting the number of characters in an 8-gigabyte file by
1059    reading it character-by-character.  That test was successful.
1060    
1061    In support of 64-bit positions, a number of new functions have been
1062    added to the runtime system.
1063    
1064    ----------------------------------------------------------------------
1065    Name: Matthias Blume (blume (at) tti - c (dot) org)
1066    Date: 2004/11/23 14:45:00 CST
1067    Tag: blume-20041123-useFile
1068    Description:
1069    
1070    Fixed a problem with unhelpful error messages related to problems with
1071    .cm- or .sml files that appear as part of the sml command line.
1072    
1073    ----------------------------------------------------------------------
1074    Name: Matthias Blume (blume (at) tti - c (dot) org)
1075    Date: 2004/11/18 15:40:00 CST
1076    Tag: Release_110_51
1077    Description:
1078    
1079    New working version (110.51).  NEW BOOTFILES!
1080    
1081    ----------------------------------------------------------------------
1082    Name: Matthias Blume (blume (at) tti - c (dot) org)
1083    Date: 2004/11/18 15:35:00 CST
1084    Tag: <none>
1085    Description:
1086    
1087    Enabled dlopen and friends for FreeBSD (as recommended by Johannes 5
1088    Joemann).
1089    
1090    ----------------------------------------------------------------------
1091    Name: Allen Leung (leunga (at) reservoir (dot) com)
1092    Date: 2004/11/17 16:05:21 EST 2004
1093    Tag: leunga-20041117-mlrisc-live-kill
1094    Description:
1095    
1096       Added support for MLTree constructs LIVE and KILL
1097    to all the architectures.
1098    
1099    ----------------------------------------------------------------------
1100    Name: Matthias Blume (blume (at) tti - c (dot) org)
1101    Date: 2004/11/13 00:20:00 CST
1102    Tag: blume-20041113-versiontool
1103    Description:
1104    
1105    - Stripped down the versiontool: It now only handles the version number.
1106      The date string is generated at bootstrap time (during makeml).
1107    
1108    - In a previous commit, fixed a minor issue with how polyequal is being
1109      translated.  In particular, the code now "looks through" abstractions.
1110      This results in slightly fewer polyEqual warnings and hopefully slightly
1111      more efficient code.  Important examples for where this matters are
1112      the new int64 and word64 types.
1113    
1114    ----------------------------------------------------------------------
1115    Name: Matthias Blume (blume (at) tti - c (dot) org)
1116    Date: 2004/11/12 00:30:00 CST
1117    Tag: blume-20041112-int64
1118    Description:
1119    
1120    Structure Int64 fully hooked in.  (The implementation is not very
1121    efficient, though.)
1122    
1123    ----------------------------------------------------------------------
1124    Name: Matthias Blume (blume (at) tti - c (dot) org)
1125    Date: 2004/11/11 17:30:00 CST
1126    Tag: blume-20041111-more64
1127    Description:
1128    
1129    All the pieces of Word64 are now there, with the exception of the
1130    conversions from and to LargeWord. (Eventually these need to be identities,
1131    but for the time being they don't even make sense because LargeWord is
1132    32-bit wide.)
1133    
1134    Also started to add similar support for Int64, but major pieces of that
1135    are still missing.
1136    
1137    ----------------------------------------------------------------------
1138    Name: Matthias Blume (blume (at) tti - c (dot) org)
1139    Date: 2004/11/11 00:15:00 CST
1140    Tag: blume-20041111-word64
1141    Description:
1142    
1143    Structure Word64 is now (almost) complete, word literals and patterns
1144    seem to work.  There are a few odd pieces missing.  In particular,
1145    I didn't do the {from,to}LargeWord parts because LargeWord is still Word32
1146    at the moment.
1147    
1148    Making Word64 official would mean that LargeWord becomes Word64.  But
1149    this requires extreme care because most word-word conversions have to
1150    go through LargeWord, so making a mistake means loss of efficiency or
1151    worse.  Eventually there will be a solution similar to (but actually
1152    simpler than) what I did with IntInf.
1153    
1154    ----------------------------------------------------------------------
1155    Name: Matthias Blume (blume (at) tti - c (dot) org)
1156    Date: 2004/11/10 18:12:00 CST
1157    Tag: blume-20041110-64bit
1158    Description:
1159    
1160    More 64-bit hacking (but still not even half-way there yet).
1161    Also, some assorted improvements to the handling of 8-bit words.
1162    
1163    ----------------------------------------------------------------------
1164    Name: Matthias Blume (blume (at) tti - c (dot) org)
1165    Date: 2004/11/09 17:50:00 CST
1166    Tag: <none>
1167    Description:
1168    
1169    Started adding some infrastructure for supporting 64-bit int- and
1170    word-types.  (Still in its very early stages.)
1171    
1172    ----------------------------------------------------------------------
1173    Name: Matthias Blume (blume (at) tti - c (dot) org)
1174    Date: 2004/10/28 10:45:00 CDT
1175    Tag: Release_110_50
1176    Description:
1177    
1178    New working version (110.50).  NEW BOOTFILES!
1179    
1180                 =====================
1181    
1182    Also:
1183    
1184      - Changend config/srcarchiveurl from a file just
1185        containing the URL string into a file containing
1186        shell script code.  The code has access to the $VERSION variable.
1187      - Made corresponding changes to config/install.sh and config/unpack.
1188      - Default contents of config/srcarchiveurl uses $VERSION and
1189        normally does not have to be edited to reflect a version change.
1190    
1191      (As a result, a version change can be done by just editing
1192       config/version, the rest is now automatic.)
1193    
1194    ----------------------------------------------------------------------
1195    Name: Matthias Blume (blume (at) tti - c (dot) org)
1196    Date: 2004/10/27 17:50:00 CDT
1197    Tag: blume-20041027-btrace-msg
1198    Description:
1199    
1200    BackTrace.monitor now also reports the source of the exception that
1201    triggered the trace.
1202    
1203    ----------------------------------------------------------------------
1204    Name: Matthias Blume (blume (at) tti - c (dot) org)
1205    Date: 2004/10/27 17:20:00 CDT
1206    Tag: blume-20041027-x86-c-calls
1207    Description:
1208    
1209    This is the HISTORY entry for two earlier commits, both concerning
1210    the x86 c-calls code in MLRISC:
1211    
1212      - added a missing LOAD in the code that deals with struct arguments
1213      - made sure the caller does not add the wrong number of bytes to the
1214        stack pointer after a call of a function returning a struct
1215        (the callee already pops the implicit argument which points to
1216         the space reserved for the result)
1217    
1218    ----------------------------------------------------------------------
1219    Name: Allen Leung (leunga (at) reservoir (dot) com)
1220    Date: 2004/10/24 14:00:00 EST
1221    Tag: leunga-20041024-x86-gas-fucomip
1222    Description:
1223    
1224       John discovered a bug in the syntax of fucomip.
1225       The opcodes FU?COMIP? have been changed to
1226    
1227           fu?comip? %st(i), %st
1228    
1229    ----------------------------------------------------------------------
1230    Name: Matthias Blume (blume (at) tti - c (dot) org)
1231    Date: 2004/10/20 15:06:00 CDT
1232    Tag: blume-20041020-standalone-backtrace
1233    Description:
1234    
1235    Added a mechanism for getting back-trace information from standalone
1236    programs.  Here is how it works:
1237    
1238       1. The part of the program from which you want to get backtrace
1239          information (usually the whole program) should be wrapped with
1240          BackTrace.monitor.  This is a (unit->'a)->'a function, and your
1241          main program could be modified from something like
1242    
1243             fun main (pgm, args) = ...
1244    
1245         to
1246    
1247            fun main (pgm, args) = BackTrace.monitor (fn () => ...)
1248    
1249       2. To be able to access BackTrace.monitor, you have to add
1250          library $smlnj-tdp/plugins.cm to the .cm file that contains your
1251          main function.
1252    
1253       3. Remove all compiled code (i.e., all the .cm/ subdirectories that
1254          CM might have created in the past for your project).
1255    
1256       4. Build the system using this command line:
1257    
1258             ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
1259                      myprog.cm MyProg.main myprog
1260    
1261          instead of the usual
1262    
1263             ml-build myprog.cm MyProg.main myprog
1264    
1265    I changed a library name:
1266    
1267       $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
1268    
1269    New libraries:
1270    
1271       $smlnj-tdp/back-trace.cm
1272          -- when loaded causes the back-trace plugin to be installed
1273       $smlnj-tdp/coverage.cm
1274          -- when loaded causes the coverage plugin to be installed
1275    
1276    ----------------------------------------------------------------------
1277    Name: Matthias Blume (blume (at) tti - c (dot) org)
1278    Date: 2004/10/18 16:45:00 CDT
1279    Tag: blume-20041018-groupowner
1280    Description:
1281    
1282    Added an "obsolete" warning for the "group owner" syntax to CM's parser.
1283    
1284    Eliminated group owner specs from .cm files throughout the source tree.
1285    
1286    ----------------------------------------------------------------------
1287    Name: Matthias Blume (blume (at) tti - c (dot) org)
1288    Date: 2004/10/15 15:45:00 CDT
1289    Tag: blume-20041015-coverage
1290    Description:
1291    
1292    * Test coverage tool added!
1293    * Further reorganization of tracing-, debugging-, and profiling support:
1294    
1295        - moved original BTImp -- now called BackTrace -- into a separate
1296          library called $/trace-debug-profile.cm
1297        - eliminated all mentions of BTrace from SMLofNJ.Internals
1298        - only the instrumentation mechanism is now left in the compiler proper
1299        - BackTrace module is a plugin which is NOT plugged in by default
1300        - Coverage module is another such plugin
1301    
1302    To get the benefits of any of these plugin modules, the code in
1303    question must be compiled with tdp instrumentation turned on.  This
1304    can be done by setting SMLofNJ.Internals.TDP.mode to true.
1305    (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
1306    
1307    Plugins are selected at link time.  (Pre-compiled instrumented code
1308    can be re-loaded with different plugins in effect.)  When an
1309    instrumented module is linked, whatever plugins are at that time
1310    enabled will come into effect for that module.
1311    
1312    To enable the back-trace plugin, load library $/trace-debug-profile.cm
1313    and invoke BackTrace.install() (e.g., from the interactive prompt).
1314    To enable the coverage plugin, load the same library and invoke
1315    Coverage.install().
1316    
1317    Back-traces are generated automatically on uncaught exceptions and
1318    when the code in question explicitly invokes BackTrace.trigger().
1319    
1320    Coverage (and execution frequency-) information must be queried
1321    explicitly by calling Coverage.not_covered and Coverage.hot_spots.
1322    
1323    ----------------------------------------------------------------------
1324    Name: Matthias Blume (blume (at) tti - c (dot) org)
1325    Date: 2004/10/14 17:40:00 CDT
1326    Tag: blume-20041014-tdp-core
1327    Description:
1328    
1329    Snapshot of a significant overhaul of how the trace/debug/profile support
1330    is hooked into the system (specifically: Core and SMLofNJ.Internals).
1331    
1332    ----------------------------------------------------------------------
1333    Name: Matthias Blume (blume (at) tti - c (dot) org)
1334    Date: 2004/10/13 16:34:00 CDT
1335    Tag: blume-20041013-tdp
1336    Description:
1337    
1338    Some rationalization of names:
1339    
1340       structure BTrace -> structure TDPInstrument
1341       etc.
1342    
1343    This is is preparation of using the original back-trace
1344    instrumentation for other purposes.  "TDP" stands for
1345    Trace/Debug/Profile.
1346    
1347    The control flag controlling whether instrumentation is on or off is now
1348    registered under a different name, so instead of running sml as
1349    
1350     sml -Cinstrument.btrace-mode=true
1351    
1352    one has to say
1353    
1354     sml -Ctdp.instrument=true
1355    
1356    ----------------------------------------------------------------------
1357    Name: Matthias Blume (blume (at) tti - c (dot) org)
1358    Date: 2004/10/11 16:37:00 CDT
1359    Tag: blume-20041011-regions
1360    Description:
1361    
1362    Made some minor modifications to elabcore.sml to have source regions
1363    be propagated more tightly -- resulting in better (i.e., smaller)
1364    regions being reported in error- and debug messages.
1365    
1366    ----------------------------------------------------------------------
1367    Name: Matthias Blume (blume (at) tti - c (dot) org)
1368    Date: 2004/10/08 22:50:00 CDT
1369    Tag: blume-20041008-cmkw
1370    Description:
1371    
1372    Fixed handling of keywords in .cm files: After seeing "is" the lexer
1373    treats subsequent occurrences of "group", "library", "source", "is",
1374    "*", and "-" as ordinary identifiers rather than keywords.
1375    
1376    Most seriously, this fixes a problem with CM's "shell" tool.  The tool
1377    is supposed to accept a tool argument called "source", but this did
1378    not work because of the clash with the keyword.
1379    
1380    ----------------------------------------------------------------------
1381    Name: Matthias Blume (blume (at) tti - c (dot) org)
1382    Date: 2004/10/07 16:00:00 CDT
1383    Tag: blume-20041007-cleanup
1384    Description:
1385    
1386    Assorted cleanup work:
1387    
1388      - got rid of intstrmap in favor of using the library's
1389        hash table implementation
1390      - threw out most of the pathnames stuff, as it was not used anyway
1391      - simplified tokentable implementation
1392      - fixed some minor spelling errors
1393    
1394    ----------------------------------------------------------------------
1395    Name: Matthias Blume (blume (at) tti - c (dot) org)
1396    Date: 2004/10/06 15:15:15 CDT
1397    Tag: blume-20041006-handler
1398    Description:
1399    
1400    Cleaned up the absyn to reflect the invariant that HANDLE always
1401    carries a FNexp as part of the type definition.  This eliminates some
1402    superfluous sanity checks at runtime down the road.
1403    
1404    Some minor cleanup of the btrace code.
1405    
1406    ----------------------------------------------------------------------
1407    Name: Matthias Blume (blume (at) tti - c (dot) org)
1408    Date: 2004/10/01 10:20:30 CDT
1409    Tag: blume-20041001-slave
1410    Description:
1411    
1412    Added hack to make slave mode work in the presence of the version
1413    tool.  (Still, since the master does two passes over the code for
1414    CMB.make, the release number gets bumped twice when slaves are
1415    attached.  I don't know if this is worth fixing...)
1416    
1417    ----------------------------------------------------------------------
1418    Name: Matthias Blume (blume (at) tti - c (dot) org)
1419    Date: 2004/09/30 10:55:00 CDT
1420    Tag: blume-20040930-version
1421    Description:
1422    
1423    * Moved the "version" magic into its own little library under
1424      src/system/smlnj/internal.  This avoids expensive reconstruction of
1425      a stable src/compiler/core.cm.
1426    
1427    * At the same time, structure CompilerVersion is now known as
1428      structure SMLNJVersion.
1429    
1430    * Arranged for the version tool to NOT kick in when rebuilding the system
1431      (makeml -rebuild, fixpt).  Otherwise one would never reach a fixpoint.
1432      Also, loading the versiontool does not work when rebuilding the system
1433      because CM is not properly initialized at that time.
1434    
1435    ----------------------------------------------------------------------
1436    Name: Matthias Blume (blume (at) tti - c (dot) org)
1437    Date: 2004/09/29 14:00:00 CDT
1438    Tag: blume-20040929-autoversion
1439    Description:
1440    
1441    Implemented some CM magic to have
1442        file src/compiler/TopLevel/main/version.sml
1443    generated automagically.
1444    The version is taken from two files: config/version and config/release.
1445    The first is expected to contain a two-part version number such as 110.49.
1446    The second should contain a single number, but it may be missing.
1447    
1448    If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
1449    time the version tool is loaded (which is the first time you say CMB.make),
1450    then the tool will increment the value stored in config/release every
1451    time CMB.make is invoked.
1452    
1453    The binfile format is now insensitive to anything beyond the first
1454    two components of a version number, so bumping the release does not render
1455    binfiles incompatible.  Auto-bumping can be used to keep track of versions
1456    during development without invalidating existing binfiles.
1457    
1458    In any case, every CMB.make updates the date information in version.sml.
1459    (This is the date that is printed in the banner.)
1460    
1461    ----------------------------------------------------------------------
1462    Name: Matthias Blume (blume (at) tti - c (dot) org)
1463    Date: 2004/09/28 10:53:00 CDT
1464    Tag: blume-20040928-controls
1465    Description:
1466    
1467    Some cleanup of the controls code.
1468    
1469    ----------------------------------------------------------------------
1470    Name: Matthias Blume (blume (at) tti - c (dot) org)
1471    Date: 2004/09/27 22:08:00 CDT
1472    Tag: blume-20040927-controls
1473    Description:
1474    
1475    Added two pieces of functionality to the Controls interface:
1476    
1477    1.   val save'restore: 'a control -> unit -> unit
1478    
1479       grabs the current value of the control in stage 1 and restores it
1480       in stage 2.
1481    
1482    2.   val set' : 'a control * 'a -> unit -> unit
1483    
1484       stores the given value into the control in stage 2 (i.e., delayed)
1485       but does all error checking in stage 1.
1486       (This is for string controls that need to do parse their argument --
1487        something that might fail.  In some cases, notably in CM, one
1488        already knows the intended argument but wants to delay the actual
1489        assignment until a time when error recovery would be more difficult.)
1490    
1491    Changed the handling of controls in tool arguments to classes "sml" and
1492    "lazysml":
1493       - use Controls.save'restore as a more robust way of restoring the
1494         old value (in particular: without having to re-parse the string)
1495       - use controls to handle the "overload" keyword in the init group
1496         (I believe this change actually fixes a long-standing obscure bug.)
1497    
1498    ----------------------------------------------------------------------
1499    Name: Matthias Blume (blume (at) tti - c (dot) org)
1500    Date: 2004/09/27 17:00:00 CDT
1501    Tag: blume-20040927-lazysml
1502    Description:
1503    
1504    Added a new tool class called "lazysml" to CM's tool chest.  The only
1505    difference to "sml" is that compilation is done with Control.lazysml
1506    set to true.  A source of class "lazysml" is automatically recognized
1507    by a file name suffix of ".lml".
1508    
1509    In addition to the above feature, the original class "sml" now also
1510    supports a tool argument "lazy" which has the same effect.  As a
1511    result, the following three lines are equivalent:
1512    
1513        foo.sml : lazysml
1514        foo.sml : sml (lazy)
1515        foo.sml (lazy)
1516    
1517    The setting goes into effect both during parsing and during
1518    compilation.  The original setting is restored right after parsing and
1519    after compilation, respectively.
1520    
1521    In addition to all the above, there is also a general mechanism to set
1522    ANY of the "controls" that are available at the command line via
1523    "-C..." on a per-sml-file basis.  The same rules that apply for "lazy"
1524    apply as well. (In fact, "lazy" is implemented as a special case of
1525    the general mechanism.)
1526    
1527    The .cm file syntax uses a new keyword tool argument called "with".
1528    There are several ways of indicating the desired settings:
1529    
1530        foo.sml (with:parser.quotations=true)
1531        foo.sml (with:(name:parser.quotations value:true))
1532        foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
1533        foo.sml (with:(name1=value1 name2=value2 ...))
1534        foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
1535    
1536        etc.
1537    
1538    Another possible abbreviation is to leave out the =v or value:v part
1539    if the name refers to a boolean control (in which case the value is
1540    taken to be true).  Thus, one could get lazy sml also by saying:
1541    
1542        foo.sml (with:parser.lazy-keyword=true)
1543        foo.sml (with:parser.lazy-keyword)
1544        foo.sml (with:(name:parser.lazy-keyword value:true))
1545        foo.sml (with:(name:parser.lazy-keyword))
1546    
1547    ----------------------------------------------------------------------
1548    Name: Matthias Blume (blume (at) tti - c (dot) org)
1549    Date: 2004/09/24 16:22:00 CDT
1550    Tag: blume-20040924-ppc-long-branch
1551    Description:
1552    
1553    Turned message about "emiting long form of branch" off by default.
1554    Added a control flag to turn it back on when desired.
1555    
1556    ----------------------------------------------------------------------
1557    Name: Matthias Blume (blume (at) tti - c (dot) org)
1558    Date: 2004/09/24 16:05:00 CDT
1559    Tag: blume-20040924-rounding
1560    Description:
1561    
1562    Applied patch for setting rounding modes under Mac OS X.  Thanks to
1563    Melissa O'Neill for providing the code!
1564    
1565    ----------------------------------------------------------------------
1566    Name: Matthias Blume (blume (at) tti - c (dot) org)
1567    Date: 2004/09/23 17:30:00 CDT
1568    Tag: blume-20040923-envvars
1569    Description:
1570    
1571    1. Changed definition of type ControlRegistry.registry_tree to
1572       include control_info (i.e., the name of the controlling environment
1573       variable).
1574    
1575    2. Added command-line flags -e and -E to print the names of environment
1576       variables that can be used to control internal settings.
1577       (This uses the new API mentioned in 1.)
1578    
1579    ----------------------------------------------------------------------
1580    Name: Matthias Blume (blume (at) tti - c (dot) org)
1581    Date: 2004/09/13 16:50:00 CDT
1582    Tag: Release_110_49
1583    Description:
1584    
1585    New working version (110.49).  NEW BOOTFILES!
1586    
1587    ----------------------------------------------------------------------
1588    Name: Matthias Blume
1589    Date: 2004/09/13 16:20:00 CDT
1590    Tag: blume-20040913-config-mlrisc
1591    Description:
1592    
1593    Put target "mlrisc" back into the default list.
1594    (There is no harm in having it, and some users have expressed their
1595    wish to have "mlrisc" included by default.)
1596    
1597    ----------------------------------------------------------------------
1598    Name: John Reppy
1599    Date: 2004/09/13
1600    Tag: jhr-20040913-signals
1601    Description:
1602    
1603    Fixed the signal masking code to properly nest mask/unmask operations
1604    on a per-signal basis.
1605    
1606    ----------------------------------------------------------------------
1607    Name: Matthias Blume (blume (at) tti - c (dot) org)
1608    Date: 2004/09/08 13:20:00 CDT
1609    Tag: blume-20040908-heap-magic
1610    Description:
1611    
1612    Bumped the heap macig number to 0x09082004 to account for the changed
1613    layout of the ML frame under MacOS X.
1614    
1615    ----------------------------------------------------------------------
1616    Name: Allen Leung (leunga (at) reservoir (dot) com)
1617    Date: 2004/09/03 11:26:00 EST
1618    Tag: leunga-20040903-cygwin-install
1619    Description:
1620    
1621       Added a patch to _arch-n-opsys to enable the Cygwin runtime.
1622    The Cygwin runtime is turned on by setting the environment
1623    variable SMLNJ_CYGWIN_RUNTIME to 1.
1624    
1625    ----------------------------------------------------------------------
1626    Name: Matthias Blume (blume (at) tti - c (dot) org)
1627    Date: 2004/08/31 17:15:00 CDT
1628    Tag: blume-20040831-core
1629    Description:
1630    
1631    Added some exports to src/compiler/core.cm upon request by J. Joemann.
1632    
1633    ----------------------------------------------------------------------
1634    Name: Matthias Blume (blume (at) tti - c (dot) org)
1635    Date: 2004/08/30 17:55:00 CDT
1636    Tag: blume-20040830-installer
1637    Description:
1638    
1639    Upon request by Johannes Joemann:
1640    
1641    - improved ML code of installer to fall back to coping when renaming
1642      fails (i.e., when source and target are on different file systems);
1643      the code compiles but has yet to be tested in anger
1644    - removed mlrisc from list of default targets (config/targets)
1645    
1646    ----------------------------------------------------------------------
1647    Name: Matthias Blume (blume (at) tti - c (dot) org)
1648    Date: 2004/08/27 17:20:00 CDT
1649    Tag: blume-20040827-ptreql
1650    Description:
1651    
1652    Added ptreql primop to structure InlineT (upon request from Larry
1653    Paulson).
1654    
1655    ----------------------------------------------------------------------
1656    Name: Allen Leung (leunga (at) reservoir (dot) com)
1657    Date: 2004/08/15 21:21:00 EST
1658    Tag: leunga-110_48-udgraph
1659    Description:
1660    
1661    Another bug fix from Carl Hauser:
1662    
1663    diff /net/niflab/smlnj48/src/MLRISC/graphs/udgraph.sml udgraph.sml
1664    > 48c48
1665    > <              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then es else
1666    > e::L)
1667    > ---
1668    > >              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then L else e::L)
1669    > Without this, any deletion of an edge in an undirected graph does severe
1670    > violence to the graph.
1671    
1672    ----------------------------------------------------------------------
1673    Name: Allen Leung (leunga (at) reservoir (dot) com)
1674    Date: 2004/08/10 23:35:00 EST
1675    Tag: leunga-110_48-ppc
1676    Description:
1677    
1678       The IBM/MacOS syntax switch on PPC was incorrectly swapped.
1679    
1680    ----------------------------------------------------------------------
1681    Name: Matthias Blume (blume (at) tti - c (dot) org)
1682    Date: 2004/08/10 12:00:00 CDT
1683    Tag: Release_110_48
1684    Description:
1685    
1686    New working version (110.48).  NEW BOOTFILES!
1687    
1688    ----------------------------------------------------------------------
1689    Name: Allen Leung (leunga (at) reservoir (dot) com)
1690    Date: 2004/08/09 12:21:00 EST
1691    Tag: leunga-110_47-dijsktra
1692    Description:
1693    
1694    Bug fix from Carl Hauser:
1695    
1696    single_source_shortest_paths in dijkstra.sml was observed to get wrong
1697    answers (by comparing to single_source_shortest_paths in bellman-ford.sml).
1698    
1699    The problem is that following the expression A.update(dist,s,Num.zero)
1700    it is necessary to update the priority queue using Q.decreaseWeight(Q,s).
1701    
1702    ----------------------------------------------------------------------
1703    Name: Matthias Blume (blume (at) tti - c (dot) org)
1704    Date: 2004/08/06 18:10:00 CDT
1705    Tag: blume-20040806-cmdline
1706    Description:
1707    
1708    Fiddled with handling of command-line options:
1709    
1710      * sml now quits after processing the command line
1711        if -H, -S, -h<n>, or -s<n> appears as the last
1712        command-line argument
1713      * a new option -q terminates the session when encountered on
1714        the command line; subsequent arguments will be ignored
1715      * bug fixes: short (erroneous) arguments are no longer ignored
1716        completely
1717    
1718    ----------------------------------------------------------------------
1719    Name: Allen Leung (leunga (at) reservoir (dot) com)
1720    Date: 2004/08/04 18:17:00 EST
1721    Tag: leunga-110_47-ppc-ibm-asm
1722    Description:
1723    
1724      - Added minimal IBM assembly syntax support for PowerPC.
1725    
1726      - Cygwin: manually changed the file cygwin.def.  Some exported symbols have
1727        been altered in the runtime.  We need an automatic way to keep the file
1728        in sync.
1729    
1730    ----------------------------------------------------------------------
1731    Name: Matthias Blume (blume (at) tti - c (dot) org)
1732    Date: 2004/08/04 14:00:00 CDT
1733    Tag: Release_110_47
1734    Description:
1735    
1736    New working version (110.47).  NEW BOOTFILES!
1737    
1738    ----------------------------------------------------------------------
1739    Name: Matthias Blume (blume (at) tti - c (dot) org)
1740    Date: 2004/08/03 14:25:00 CDT
1741    Tag: blume-20040803-callingconv
1742    Description:
1743    
1744    Added low-level support for choosing C calling conventions by
1745    twiddling the type of rawccall.  (See
1746    src/compiler/Semant/types/cproto.sml for details.)
1747    
1748    ----------------------------------------------------------------------
1749    Name: Matthias Blume (blume (at) tti - c (dot) org)
1750    Date: 2004/08/02 15:55:00 CDT
1751    Tag: blume-20040802-backout
1752    Description:
1753    
1754    Backed out of change to win32-filesys.c.  The earlier patch to
1755    get_file_time caused CM to produce files with the wrong time stamp.
1756    
1757    ----------------------------------------------------------------------
1758    Name: Matthias Blume (blume (at) tti - c (dot) org)
1759    Date: 2004/08/02 14:45:00 CDT
1760    Tag: blume-20040802-nlffi-win32
1761    Description:
1762    
1763    Added NLFFI support for Win32, adapted from a patch provided by David
1764    Hansel.  This is currently completely untested.  Also, the issue
1765    concerning stdcall vs. ccall is still unresolved.
1766    
1767    ----------------------------------------------------------------------
1768    Name: Matthias Blume (blume (at) tti - c (dot) org)
1769    Date: 2004/07/30 17:55:00 CDT
1770    Tag: blume-20040730-various
1771    Description:
1772    
1773    Gearing up towards 110.47...
1774    
1775    - various minor bugfixes to ml-nlffigen
1776    - a beginning of a manual for nlffi
1777    
1778    - eliminated 'export name=value' in config/install.sh as this does
1779      not work with certain versions of /bin/sh
1780      (Thanks to David King at Motorola for catching this.)
1781    
1782    - several bugfixes provided or suggested by David Hansel at Reactive Systems:
1783      - added a test for tm==NULL to gmtime.c and localtime.c
1784      - applied patch for incorrect GetFileTime under win32
1785      - toSeconds -> toMilliseconds in Win32/win32-process.sml
1786    
1787    ----------------------------------------------------------------------
1788    Name: Matthias Blume (blume (at) tti - c (dot) org)
1789    Date: 2004/07/21 18:20:00 CDT
1790    Tag: blume-20040721-nlffigen
1791    Description:
1792    
1793    - Fixed minor issue in ml-nlffigen: Now generate structure T_foo
1794      for a typedef to an incomplete type, but leave out the "typ" member.
1795      (This is just for consistency.)
1796    - Started to produce what is supposed to become better (i.e., comprehensive)
1797      documentation of what ml-nlffigen does and produces.
1798    
1799    ----------------------------------------------------------------------
1800    Name: Matthias Blume (blume (at) tti - c (dot) org)
1801    Date: 2004/07/14 16:25:00 CDT
1802    Tag: blume-20040714-union
1803    Description:
1804    
1805    Added C_UNION to c-calls/c-types.sml and updated the machinery
1806    (ml-nlffigen, cproto.sml) that conveys C function interface
1807    information to the code generator.
1808    
1809    However, the actual architecture-specific implementation of function
1810    arguments and results that are C unions is still not implemented.
1811    
1812    ----------------------------------------------------------------------
1813    Name: Allen Leung (leunga (at) reservoir (dot) com)
1814    Date: 2004/07/14 14:38:00 EST
1815    Tag: leunga-110_46_1-ppc-lwzu
1816    Description:
1817    
1818        Added these instructions to the PowerPC architecture:
1819        LBZU(X), LHZU(X), LWZU(X),
1820        STWU(X), STFDU, STFSU
1821    
1822        etc...
1823    
1824        Note: I haven't added their instruction encoding into the description.
1825    
1826    ----------------------------------------------------------------------
1827    Name: Allen Leung (leunga (at) reservoir (dot) com)
1828    Date: 2004/07/13 15:04:00 EST
1829    Tag: leunga-110_46_1-ppc-lwarx
1830    Description:
1831    
1832       Added the two instructions LWARX and STWCX to the PowerPC
1833    instruction set.
1834    
1835       A (untested) rewrite of loop-structure.sml.  The old version
1836    is completely broken.
1837    
1838    ----------------------------------------------------------------------
1839    Name: Matthias Blume (blume (at) tti - c (dot) org)
1840    Date: 2004/07/13 13:50:00 CDT
1841    Tag: blume-20040713-nlffi
1842    Description:
1843    
1844    - use paramAlloc to report c-calls with too many arguments
1845      (for PPC version where parameter area is pre-allocated)
1846    - added ccall_maxargspace to machspec (to implement the above)
1847    - made "make" commend in CM's "make" tool configurable
1848    - added option (default: on) for passing the name of the SML/NJ's "bin"
1849      directory to "make"; the call looks like this:
1850    
1851         make <options> SMLNJ_BINDIR=<dir> <target>
1852    
1853      This can be used by the Makefile to, e.g., pick the "right" version
1854      of ml-nlffigen.
1855    - minor code tweaks
1856    
1857    ----------------------------------------------------------------------
1858    Name: Matthias Blume (blume (at) tti - c (dot) org)
1859    Date: 2004/07/12 22:50:00 CDT
1860    Tag: blume-110_46_1-macosx-nlffi
1861    Description:
1862    
1863    NLFFI under Mac OS X now working (sort of).  This is largely untested,
1864    though.
1865    
1866    Note:  1. You have to make a new, clean build of the runtime system.
1867           2. There are new BOOTFILES, you have to use them!
1868              (Doing the bootstrap process yourself would be *very* painful!
1869               If you absolutely have to do it, build the system under
1870               a different architecture and then cross-compile.)
1871    
1872    Version bumped to 110.46.1 to account for runtime data format changes.
1873    
1874    ----------------------------------------------------------------------
1875    Name: Matthias Blume (blume (at) tti - c (dot) org)
1876    Date: 2004/06/18 14:30:00 CDT
1877    Tag: blume-20040618-unix
1878    Description:
1879    
1880    Changed the implementation of structure Unix so that the same stream
1881    is returned every time one of the {text,bin}{In,Out}streamOf functions
1882    is invoked on the same proc.  This is not what the spec currently
1883    says -- although IMO it arguably should.  (See discussion below.)
1884    
1885    ----------------------------------------------------------------------
1886    Name: Matthias Blume (blume (at) tti - c (dot) org)
1887    Date: 2004/06/17 18:15:00 CDT
1888    Tag: Release_110_46
1889    Description:
1890    
1891    New working version (110.46).  NEW BOOTFILES!
1892    
1893    ----------------------------------------------------------------------
1894    Name: Matthias Blume (blume (at) tti - c (dot) org)
1895    Date: 2004/06/17 17:20:00 CDT
1896    Tag: blume-20040617-timer-unix
1897    Description:
1898    
1899    Changed the interface of structures Timer and Unix to match the most
1900    recent Basis spec.
1901    
1902    In the case of Unix there still seems to be an open/weird issue:
1903    
1904       The {text,bin}{In,Out}streamOf functions are supposed to create
1905       fresh streams whenever they are called -- as opposed to have them
1906       return the same stream every time.  This design is supposed to
1907       prevent space leaks caused by proc values hanging on to streams.
1908    
1909       The reap function, on the other hand, is supposed to close the
1910       streams.  This cannot be done without having a handle on the
1911       stream in proc after all...
1912    
1913    I took the liberty to implement the following stopgap solution:
1914    
1915      The proc value hangs on to the most recently created stream(s).
1916      Reap closes those.  If either or both of the two streams hadn't
1917      been created at all yet, then reap will close the corresponding
1918      file descriptors directly.
1919    
1920    PS: I don't understand the original space leak argument anymore.  If
1921    a proc hangs on to the imperative stream, then I/O operations on those
1922    will advance the state of the cached stream and avoid the space leak.
1923    
1924    ----------------------------------------------------------------------
1925    Name: Matthias Blume (blume (at) tti - c (dot) org)
1926    Date: 2004/05/28 16:45:00 CDT
1927    Tag: blume-20040528-basis
1928    Description:
1929    
1930    Added signature PACK_REAL and exported functor PrimIO.
1931    
1932    ----------------------------------------------------------------------
1933    Name: Matthias Blume (blume (at) tti - c (dot) org)
1934    Date: 2004/05/25 16:00:00 CDT
1935    Tag: blume-20040525-group-owner
1936    Description:
1937    
1938    CM now ignores (but still accepts) the "owner" information in group
1939    descriptions.  The owner of a group is its next enclosing
1940    library. Each group must have a unique owner.  (There is a virtual
1941    "toplevel" library that owns groups which are not nested within a real
1942    library.)  Previously, each group had to explicitly declare its owner,
1943    and CM would check that such a declaration is correct.  The new scheme
1944    is to have CM check that for each group there is precisely one owning
1945    library.
1946    
1947    The advantage of the new scheme is that the programmer no longer needs
1948    to maintain the somewhat annoying owner information.  The downside is
1949    that CM cannot enforce the ownership rule across multiple runs of
1950    CM.make.  Fortunately, enclosing the same group in two different
1951    libraries A and B which are not part of the same program does not
1952    cause real problems.
1953    
1954    ----------------------------------------------------------------------
1955    Name: Matthias Blume (blume (at) tti - c (dot) org)
1956    Date: 2004/05/20 16:00:00 CDT
1957    Tag: blume-20040520-win32
1958    Description:
1959    
1960    Made the win32 version work again.  (Strangely, a misplaced comma had
1961    slipped into win32-process.c which prevented the runtime from being
1962    compiled correctly.)
1963    
1964    Also, included a minor addition to ml-build.bat analogous to what was
1965    done in blume-20040519-ml-build.
1966    
1967    ----------------------------------------------------------------------
1968    Name: Matthias Blume (blume (at) tti - c (dot) org)
1969    Date: 2004/05/19 22:10:00 CDT
1970    Tag: blume-20040519-ml-build
1971    Description:
1972    
1973    Arranged for ml-build to clean up after itself a little bit better.
1974    The script generates a temporary SML source file and compiles it using
1975    CM, so CM generates metadata (GUID, SKEL, objectfile) for it.  It now
1976    gets rid of those at the end, so they don't accumulate under .cm.
1977    
1978    This required a minor change to install.sh because the name of the
1979    metadata directory (default: .cm) is actually configurable at
1980    installation time.
1981    
1982    ----------------------------------------------------------------------
1983    Name: Matthias Blume (blume (at) tti - c (dot) org)
1984    Date: 2004/05/18 15:50:00 CDT
1985    Tag: blume-20040518-mkreader
1986    Description:
1987    
1988    Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
1989    implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
1990    
1991    ----------------------------------------------------------------------
1992    Name: Matthias Blume (blume (at) tti - c (dot) org)
1993    Date: 2004/05/11 14:35:00 CDT
1994    Tag: blume-20040511-win32sock
1995    Description:
1996    
1997    Added previously missing support for many socket-related functions
1998    under win32.  Thanks to David Hansel <hansel@reactive-systems.com>
1999    for the voluminous patch!
2000    
2001    (I have not tested this patch under win32 yet.)
2002    
2003    Here is David's e-mail:
2004    
2005    Hi,
2006    
2007    Attached to this email you find a diff against sml/nj 110.45
2008    that will enable socket support under Windows.
2009    
2010    To apply the patch (using unix or cygwin)
2011    1) gunzip runtime.diff.gz
2012    2) "cd" into "src/runtime" in the source tree of a fresh
2013       110.45 installation.
2014    3) patch -p 1 < [your/path/to]runtime.diff
2015    
2016    The code compiles fine but has NOT yet been extensively tested.
2017    I only ran a few tests for basic socket client functionality
2018    (which worked fine).  Especially the functions that use ioctl
2019    are not tested at all and might not work (see below).
2020    
2021    I implemented this since we want to move to a newer version of sml/nj
2022    but need socket support in order to use it.  This is the first time I
2023    even had a look at the sml/nj source,  so please review my changes
2024    before making this part of the distribution!  Here are a few issues
2025    that I think might be better for someone to solve who is more
2026    familiar with the sml/nj source (and socket programming):
2027    
2028    - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
2029      exception since I could not figure out what the windows equivalent
2030      of these functions is
2031    
2032    - In sockets-osdep.h there are a some #include statements that are
2033      only used in a few files that include sockets-osdep.h
2034    
2035    - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
2036      does not process its return value since I don't know how to
2037      report an error upwards.
2038    
2039    - It would probably be good to have a call to WSACleanup() when
2040      the library is unloaded (if there is such a possibility).
2041      Otherwise I think Windows will take care of this automatically
2042      when the process finishes.
2043    
2044    - I used ioctlsocket() as a replacement for ioctl() but I have
2045      no idea if that is actually the proper replacement on Windows.
2046    
2047    - All these issues are marked in the code by "FIXME" comments.
2048    
2049    We use sml/nj extensively in our products and are quite happy
2050    with it.  I hope this contribution will help you.
2051    
2052    Keep up the good work!
2053    
2054    David
2055    
2056    ----------------------------------------------------------------------
2057    Name: Matthias Blume (blume (at) tti - c (dot) org)
2058    Date: 2004/05/11 14:20:00 CDT
2059    Tag: blume-20040511-installml
2060    Description:
2061    
2062    Fixed two bugs in installml script.  (Thanks to Vesa A. Norrman for
2063    the patch.)
2064    
2065    ----------------------------------------------------------------------
2066    Name: Matthias Blume (blume (at) tti - c (dot) org)
2067    Date: 2004/05/11 14:05:00 CDT
2068    Tag: blume-20040511-nlffi-netbsd
2069    Description:
2070    
2071    Added support for nlffi under netbsd.  (Thanks to Vesa A. Norrman for
2072    the patch.)
2073    
2074    ----------------------------------------------------------------------
2075    Name: Matthias Blume (blume (at) tti - c (dot) org)
2076    Date: 2004/05/11 12:05:00 CDT
2077    Tag: blume-20040511-exports
2078    Description:
2079    
2080    As per request by Adam Chlipala <adam@hcoop.net>, extended various
2081    export lists in compiler-related .cm-files.
2082    
2083    ----------------------------------------------------------------------
2084    Name: Matthias Blume (blume (at) tti - c (dot) org)
2085    Date: 2004/05/11 11:35:00 CDT
2086    Tag: blume-20040511-allsource
2087    Description:
2088    
2089    The installer now honors the "src-smlnj" target again, although its meaning
2090    has changed from "all sources required for the compiler" to "all sources
2091    the installer knows about".  In other words, if you enable "src-smlnj"
2092    in the "targets" file, then the installer will pull in sources for
2093    everything.  (Notice that this refers to source code only.  Compiled
2094    code is still only installed for modules that were requested explicitly
2095    or which are required for other modules that were requested explicitly.)
2096    
2097    ----------------------------------------------------------------------
2098    Name: Matthias Blume (blume (at) tti - c (dot) org)
2099    Date: 2004/04/23 17:40:00 CDT
2100    Tag: blume-20040423-ieee-scan
2101    Description:
2102    
2103    Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
2104    in the exponent calculation we get INF or ZERO (depending on the mantissa
2105    and the sign of the exponent).
2106    
2107    ----------------------------------------------------------------------
2108    Name: Matthias Blume (blume (at) tti - c (dot) org)
2109    Date: 2004/04/23 10:40:00 CDT
2110    Tag: blume-20040423-ml-build
2111    Description:
2112    
2113    The ml-build script now terminates with a non-0 status when something
2114    goes wrong.
2115    
2116    ----------------------------------------------------------------------
2117    Name: Matthias Blume (blume (at) tti - c (dot) org)
2118    Date: 2004/04/22 16:35:00 CDT
2119    Tag: blume-20040422-Option
2120    Description:
2121    
2122    Made exception Option to be the same as exception Option.Option
2123    (as it should be).
2124    
2125    ----------------------------------------------------------------------
2126    Name: Allen Leung (leunga (at) reservoir (dot) com)
2127    Date: 2004/03/19 14:40:00 EST
2128    Tag: leunga-20040319-cygwin-nlffi
2129    Description:
2130    
2131    Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
2132    of SML/NJ.  The problem is that
2133    
2134       lib = dlopen(NULL, ...)
2135       f   = dlsym(lib, "malloc");
2136    
2137    does not work on Windows unless we explicitly export symbols
2138    such as 'malloc' during linking.  We fixed this by explicitly
2139    exporting the required symbols with the magic gcc incantation:
2140    
2141        -Wl,--export-all cygwin.def
2142    
2143    where cygwin.def is a file containing all the symbols that
2144    we wish to export.
2145    
2146    I suspect this is a Windows problem and we'll have to
2147    do the same (somehow with windows compilers) when
2148    we build the native win32 version with the system
2149    calls LoadLibrary/GetProcAddress.
2150    
2151    ----------------------------------------------------------------------
2152    Name: Matthias Blume (blume (at) tti - c (dot) org)
2153    Date: 2004/03/04 16:35:00 CST
2154    Tag: blume-20040304-intinf-fmt
2155    Description:
2156    
2157    Fixed problem with IntInf.fmt (sign would show up on the right instead
2158    of on the left for BIN, OCT, and HEX).
2159    
2160    ----------------------------------------------------------------------
2161    Name: Matthias Blume (blume (at) tti - c (dot) org)
2162    Date: 2004/03/04 11:25:00 CST
2163    Tag: blume-20040304-symlinks
2164    Description:
2165    
2166    Fixed problem with installer script (unix only) where bin/ml-yacc and
2167    friends pointed (via symlinks) to absolute locations instead of just
2168    .run-sml.  This was reported by Vesa A Norrman.
2169    
2170    ----------------------------------------------------------------------
2171    Name: Matthias Blume (blume (at) tti - c (dot) org)
2172    Date: 2004/02/13 14:50:00 CST
2173    Tag: Release_110_45
2174    Description:
2175    
2176    New working version (110.45). New bootfiles.
2177    
2178    ----------------------------------------------------------------------
2179    Name: Matthias Blume (blume (at) tti - c (dot) org)
2180    Date: 2004/01/26 15:15:15 CST
2181    Tag: blume-20040126-toplevel
2182    Description:
2183    
2184    Improved handling of exceptions at the interactive toplevel.
2185    
2186    ----------------------------------------------------------------------
2187    Name: Matthias Blume (blume (at) tti - c (dot) org)
2188    Date: 2004/01/26 11:25:00
2189    Tag: blume-20040126-app
2190    Description:
2191    
2192    Type of top-level "app" corrected.
2193    Added code for setting vp_limitPtrMask to Win32-specific runtime.
2194    
2195    ----------------------------------------------------------------------
2196    Name: Matthias Blume (blume (at) tti - c (dot) org)
2197    Date: 2003/11/18 17:10 CST
2198    Tag: blume-20031118-basis-fiddle
2199    Description:
2200    
2201    - changed Timer interface to what might become the spec
2202    - POSIX_FLAGS -> BIT_FLAGS according to spec
2203    - some other minor discrepancies wrt. spec eliminated
2204    
2205    ----------------------------------------------------------------------
2206    Name: Matthias Blume (blume (at) tti - c (dot) org)
2207    Date: 2003/11/06 12:00:00 CST
2208    Tag: Release_110_44
2209    Description:
2210    
2211    New working version (110.44). New bootfiles.
2212    
2213    ----------------------------------------------------------------------
2214    Name: Matthias Blume (blume (at) tti - c (dot) org)
2215    Date: 2003/11/04 11:50:00 CST
2216    Tag: blume-20031104-move-libraries
2217    Description:
2218    
2219    Eliminated the "dont_move_libraries" directive in config/targets.
2220    (The mechanism was broken and could not be fixed easily.  Moreover,
2221    there does not seem to be any reason not to move all libraries into
2222    lib during installation.  I originally implemented this directive as a
2223    backward-compatibility feature when I first introduced the new CM.
2224    Now that things have been stable for a long time and going back to the
2225    old CM is not an option, there is no reason to keep it around.)
2226    
2227    ----------------------------------------------------------------------
2228    Name: Matthias Blume (blume (at) tti - c (dot) org)
2229    Date: 2003/11/03 16:00:00 CST
2230    Tag: blume-20031103-installdir
2231    Description:
2232    
2233    Made installer honor INSTALLDIR variable again.  (Thanks to Chris
2234    Richards for pointing out the problem and providing the solution.)
2235    
2236    ----------------------------------------------------------------------
2237    Name: Matthias Blume (blume (at) tti - c (dot) org)
2238    Date: 2003/10/01 17:05:00 CDT
2239    Tag: blume-20031001-lal-mlrisc
2240    Description:
2241    
2242    MLRISC bug fix from Lal.
2243    
2244    ----------------------------------------------------------------------
2245    Name: Matthias Blume (blume (at) tti - c (dot) org)
2246    Date: 2003/09/30 16:10:00 CDT
2247    Tag: blume-20030930-primio-bat
2248    Description:
2249    
2250    1. Added openVector, nullRd, and nullWr to PRIM_IO.
2251    2. Improved .bat files (for Win32 port) to make things work under Win95.
2252       (thanks to Aaron S. Hawley for this one)
2253    
2254    ----------------------------------------------------------------------
2255    Name: Matthias Blume (blume (at) tti - c (dot) org)
2256    Date: 2003/09/26 16:05:00 CDT
2257    Tag: blume-20030926-wrappriv
2258    Description:
2259    
2260    Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
2261    
2262    ----------------------------------------------------------------------
2263    Name: Matthias Blume (blume (at) tti - c (dot) org)
2264    Date: 2003/09/26 15:00:00 CDT
2265    Tag: blume-20030926-110_43_3
2266    Description:
2267    
2268    - additional cleanup
2269    - version number bump, NEW BOOTFILES
2270    
2271    ----------------------------------------------------------------------
2272    Name: Matthias Blume (blume (at) tti - c (dot) org)
2273    Date: 2003/09/26 12:00:00 CDT
2274    Tag: blume-20030926-ppautoload
2275    Description:
2276    
2277    I modified the read-eval-print loop so that the autoloader gets
2278    invoked whenever the prettyprinter tries to look up a symbol that
2279    is not currently defined in the toplevel environment but which
2280    appears in CM's autoload registry.  As a result, we see far fewer of
2281    those ?.Foo.Bar.xxx names in the prettyprinter's output.
2282    
2283    In addition to this I tried to clean up some pieces of the Basis
2284    implementation (e.g., Socket, Word8Array) in order to prevent other
2285    instances of these ?.Foo.Bar.xxx names from being printed.
2286    
2287    The mechanism that picks names for types still needs some work, though.
2288    (Right now it seems that if there is a type A.t which is defined to
2289    be B.u, but B is unavailable at toplevel, then A.t gets printed as
2290    "?.B.u" although the perhaps more sensible solution would be to use
2291    "A.t" in this case.  In other words, the prettyprinter should follow
2292    a chain of DEFtycs not farther than there are corresponding toplevel
2293    names in the current environment.)
2294    
2295    ----------------------------------------------------------------------
2296    Name: Matthias Blume (blume (at) tti - c (dot) org)
2297    Date: 2003/09/24 16:31:00 CDT
2298    Tag: blume-20030924-installer
2299    Description:
2300    
2301    Another installer tweak:  All the ML code for the installer is now
2302    compiled during CMB.make and put into a little library called
2303    $smlnj/installer.cm.  The installation then simply invokes
2304    
2305       sml -m $smlnj/installer.cm
2306    
2307    and everything happens automagically.
2308    
2309    Win32:  ML code senses value of environment variable SMLNJ_HOME.
2310    Unix:   ML code senses values of environment variables ROOT, CONFIGDIR,
2311            and BINDIR.
2312    
2313    The new scheme guarantees that the ML code responsible for the installation
2314    is in sync with the APIs of the main system.  Also, the installer is
2315    somewhat faster because the installer script is precompiled.
2316    
2317    ----------------------------------------------------------------------
2318    Name: Matthias Blume (blume (at) tti - c (dot) org)
2319    Date: 2003/09/24 15:35:00 CDT
2320    Tag: blume-20030924-synsock
2321    Description:
2322    
2323    Added a signature SYNCHRONOUS_SOCKET to basis.cm.  This is like SOCKET
2324    but excludes all non-blocking operations.  Defined SOCKET (in Basis)
2325    and CML_SOCKET in terms of SYNCHRONOUS_SOCKET.  Removed superfluous
2326    implementations of non-blocking operations from CML's Socket
2327    structure.
2328    
2329    ----------------------------------------------------------------------
2330    Name: Matthias Blume (blume (at) tti - c (dot) org)
2331    Date: 2003/09/24 15:10:05 CDT
2332    Tag: blume-20030924-sockets
2333    Description:
2334    
2335    1. Fixed SOCKET API and implementation to match Basis spec.
2336       This required changing the internal representation of sockets to one
2337       that remembers (for each socket file descriptor) whether it is currently
2338       blocking or non-blocking.  This state is maintained lazily (i.e., a system
2339       call is made only if the state actually needs to change).
2340    
2341    2. OS-specific details of sockets were moved into separate files, thus
2342       making it possible to unify the bulk of the socket implementations
2343       between Unix and Win32.
2344    
2345    3. CML's socket API changed accordingly.
2346       (Note that we need to remove non-blocking functions from this API
2347       since they are redundant in the case of CML!)
2348    
2349    4. CML's socket implementation now makes use of non-blocking functions
2350       provided by Basis, thus removing all OS-dependent code from this part
2351       of CML.
2352    
2353    5. Changed Real64.precision from 52 to 53.  Minor cleanup in Real64 code.
2354    
2355    ----------------------------------------------------------------------
2356    Name: Matthias Blume (blume (at) tti - c (dot) org)
2357    Date: 2003/09/22 12:10:00 CDT
2358    Tag: blume-20030922-110_43_2
2359    Description:
2360    
2361    Made a new interim version and bootfiles for developer's bootstrapping
2362    convenience.
2363    
2364       110.43.2 -- NEW BOOTFILES
2365    
2366    ----------------------------------------------------------------------
2367    Name: Matthias Blume (blume (at) tti - c (dot) org)
2368    Date: 2003/09/19 15:55:00 CDT
2369    Tag: blume-20030919-cmdir
2370    Description:
2371    
2372    1. new-install.sh -> install.sh
2373    2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
2374    3. tweaked installer so that another name instead of .cm can be chosen
2375       at install time (by setting the CM_DIR_ARC environment variable
2376       during installation); once installation is complete, the name is
2377       fixed
2378    
2379    ----------------------------------------------------------------------
2380    Name: Matthias Blume (blume (at) tti - c (dot) org)
2381    Date: 2003/09/18 16:00:00 CDT
2382    Tag: blume-20030918-110_43_1
2383    Description:
2384    
2385    Made a new interim version and bootfiles for developer's bootstrapping
2386    convenience.
2387    
2388       110.43.1 -- NEW BOOTFILES
2389    
2390    ----------------------------------------------------------------------
2391    Name: Matthias Blume (blume (at) tti - c (dot) org)
2392    Date: 2003/09/18 15:20:00 CDT
2393    Tag: blume-20030918-misc
2394    Description:
2395    
2396    1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
2397       this seems to be controversial at the moment) and used those in
2398       Posix.ProcEnv.times.
2399    
2400    2. Added Time.{from,to}Nanoseconds to Time.
2401    
2402    3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
2403       For example, fromLargeInt never needs to look at more than 3 "big
2404       digits" to get its 53 bits of precision.
2405    
2406    ----------------------------------------------------------------------
2407    Name: Matthias Blume (blume (at) tti - c (dot) org)
2408    Date: 2003/09/17 16:30:00 CDT
2409    Tag: blume-20030917-real32-slices
2410    Description:
2411    
2412    Added an entry to the primitive environment
2413    (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
2414    added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
2415    
2416    Removed some of the "magic" constants in real64.sml and replaced them
2417    with code that generates these values from their corresponding
2418    integer counterparts.
2419    
2420    Made all(?) the slice-related changes to the Basis and made everything
2421    compile again...
2422    
2423    ----------------------------------------------------------------------
2424    Name: Matthias Blume (blume (at) tti - c (dot) org)
2425    Date: 2003/09/15 17:45:00 CDT
2426    Tag: blume-20030915-rbase
2427    Description:
2428    
2429    Fixed bug in Real.fromLargeInt.
2430    
2431    ----------------------------------------------------------------------
2432    Name: Matthias Blume (blume (at) tti - c (dot) org)
2433    Date: 2003/09/13 18:11:00 CDT
2434    Tag: blume-20030913-libinstall
2435    Description:
2436    
2437    Minor bugfix in config/libinstall (set anchor with path to
2438    standalone tool after installing it, otherwise libraries that
2439    need ml-lex or ml-yacc won't compile the first time the installer
2440    runs).
2441    
2442    ----------------------------------------------------------------------
2443    Name: Matthias Blume (blume (at) tti - c (dot) org)
2444    Date: 2003/09/12 11:45:00 CDT
2445    Tag: blume-20030912-various
2446    Description:
2447    
2448     - fixed bug in Real.toLargeInt
2449     - fixed bug in Posix.ProcEnv.times
2450     - changed inputLine functions to return an option
2451     - minor installer improvements / bugfixes
2452     - changed default @SMLalloc parameter for x86/celeron to 64k
2453    
2454    ----------------------------------------------------------------------
2455    Name: Matthias Blume (blume (at) tti - c (dot) org)
2456    Date: 2003/09/09 22:00:00 CDT
2457    Tag: Release_110_43
2458    Description:
2459    
2460        New working release 110.43.  New bootfiles.
2461    
2462    ----------------------------------------------------------------------
2463    Name: Matthias Blume (blume (at) tti - c (dot) org)
2464    Date: 2003/09/09 19:20:00 CDT
2465    Tag: blume-20030909-installer
2466    Description:
2467    
2468    Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
2469    Modified config/install.bat to take advantage of it.  Also modified
2470    config/install.sh (and called it config/new-install.sh) to take advantage
2471    of it on Unix systems.  (The SML code is (supposed to be) platform-
2472    independent.)
2473    
2474    The installer can now install everything under Win32
2475    as well as under *nix as long as it compiles.
2476    
2477    Other changes:
2478    
2479      - made CML compile again under Win32
2480      - made eXene compile under Win32 (by providing a fake structure UnixSock
2481        and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
2482      - fixed a bug in nowhere: it assumed that type OS.Process.status is the
2483        same as type int;  under Win32 it isn't
2484      - fixed some slice-related problems in the win32-specific parts of CML
2485      - added a functor argument "sameVol" to os-path-fn.sml in the Basis
2486        (under Win32, the volume name is case-insensitive, and the
2487        OS.Path code compares volume names for equality)
2488    
2489    ----------------------------------------------------------------------
2490    Name: Matthias Blume (blume (at) tti - c (dot) org)
2491    Date: 2003/09/08 11:55:00 CDT
2492    Tag: blume-20030908-fullpath
2493    Description:
2494    
2495    Made Win32 version of OS.FileSys.fullPath return current directory
2496    when given an empty string.  This is what the spec says, and incidentally,
2497    CM depends on it.  (CM otherwise goes into an infinite loop in certain
2498    cases when presented with the name of a non-existing .cm file.)
2499    
2500    ----------------------------------------------------------------------
2501    Name: Matthias Blume (blume (at) tti - c (dot) org)
2502    Date: 2003/09/04 16:30:00 CDT
2503    Tag: blume-20030905-slices-etc
2504    Description:
2505    
2506      1. Changed interface to vectors and arrays in Basis to match
2507         (draft) Basis spec.
2508      2. Added signatures and implementations of slices according to
2509         Basis spec.
2510      3. Edited source code throughout the system to make it compile again
2511         under 1. and 2.  (In some cases code had to be added to have it
2512         match the new signatures.)
2513      4. MLRISC should be backward-compatible: the copies of the originals
2514         of files that needed to change under 3. were retained, the .cm files
2515         check the compiler version number and use old versions when
2516         appropriate.
2517      5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
2518         dirstream -> string option (in accordance with Basis spec).
2519      6. When generating code that counts lines, ml-lex used function
2520         CharVector.foldli, taking advantage of its old interface.
2521         This has been replaced with the corresponding code from
2522         CharVectorSlice.  (html-lex must be re-lexed!)
2523      7. BitArray in smlnj-lib/Util has been extended/modified to match the
2524         new MONO_ARRAY signature.  (Do we need BitArraySlice?)
2525      8. Removed temporary additions (fromInternal, toInternal) from the
2526         (now obsolete) IntInf in smlnj-lib/Util.
2527      9. Cleaned up structure Byte.
2528     10. Added localOffset, scan, and fromString to Date (according to spec).
2529         Cleaned/corrected implementation of Date.
2530         (Still need to check for correctness; implement better canonicalizeDate.)
2531     11. Added "scan" to signature IEEE_REAL.
2532     12. Some improvements to IntInf [in particular: efficiency-hack for
2533         mod and rem when second operand is 2 (for parity checks).]
2534     13. Changed representation of type Time.time, using a single IntInf.int
2535         value counting microseconds.  This considerably simplified the
2536         implementation of structure Time.  We now support negative time
2537         values; scan and fromString handle signs.
2538     14. Functor PrimIO now takes two additional arguments (VectorSlice and
2539         ArraySlice).
2540    
2541    ----------------------------------------------------------------------
2542    Name: Matthias Blume (blume (at) tti - c (dot) org)
2543    Date: 2003/08/28 17:00:00 CDT
2544    Tag: blume-20030828-intinf
2545    Description:
2546    
2547    This is a major update which comes with a version number bump
2548    (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
2549    and an implementation of IntInf in the Basis.
2550    
2551    There are a fairly large number of related changes and updates throughout
2552    the system:
2553    
2554    Basis:
2555            - Implemented IntInf.
2556            - Made LargeInt a projection of IntInf (by filtering through INTEGER).
2557            - Added some missing Real64 operations, most notably Real.toLargeInt.
2558            - Added FixedInt as a synonym for Int32.
2559    
2560    compiler:
2561            * Added support for a built-in intinf type.
2562              - literals
2563              - pattern matching
2564              - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
2565              - overloading on literals and operations
2566    
2567            This required adding a primitive type intinf, some additional
2568            primops, and implementations for several non-trivial intinf
2569            operations in Core.  (The intinf type is completely abstract
2570            to the compiler; all operations get delegated back to the Core.)
2571    
2572            * Intinf equality is handled by polyequal.  However, the compiler
2573            does not print its usual warning in this case (since polyequal
2574            is the right thing to do there).
2575    
2576            * Improved the organization of structure InlineT.
2577    
2578            * A word about conversion primops:
2579            If conversions involving intinf do not cancel out during
2580            CPS contract, then the compiler must insert calls to Core functions.
2581            Since all core access must be resolved already during the FLINT
2582            translate phase, it would be too late a the time of CPS contract
2583            to add new Core calls.  For this reason, conversion primops
2584            for intinf carry two arguments:  1. the numeric argument that
2585            they are supposed to convert, and 2. the Core function that
2586            can help with this conversion if necessary.  If CPS contract
2587            eliminates a primop, then the associated Core function becomes
2588            dead and goes away.  Intinf conversion primops that do not get
2589            eliminated by CPS contract get rewritten into calls of their
2590            core functions by a separate, new phase.
2591    
2592    interactive system:
2593            - Control.Print.intinfDepth controls max length of intinf constants
2594            being printed. (Analogous to Control.Print.stringDepth.)
2595            - Cleanup in printutil and pputil: got rid of unused stuff and
2596            duplicates; replaced some of the code with code that makes better
2597            use of library functionality.
2598    
2599    CM:
2600            Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
2601            are no longer silent.
2602    
2603    CKIT:
2604            Fixed mismatched uses of Int32 and LargeInt.  I always decided
2605            in favor of LargeInt -- which is now the same as IntInf.
2606            CKIT-knowledgable people should check whether this is what's
2607            intended and otherwise change things back to using Int32 or
2608            FixedInt.
2609    
2610    Throughout the code:
2611            Started using IntInf.int literals and built-in operations
2612            (e.g., comparison with 0) where this seems appropriate.
2613    
2614    
2615    ----------------------------------------------------------------------
2616    Name: Dave MacQueen (dbm@cs.uchicago.edu)
2617    Date: 2003/08/13 11:36:00 CDT
2618    Tag: dbm-20030813-mcz-merge1
2619    Description:
2620    
2621    Merging changes from the mcz-branch development branch into trunk.
2622    These changes involve replacement of the emulated old prettyprinter
2623    interface with direct use of the SML/NJ Lib PP library, and fixing
2624    of a couple of bugs (895, 1186) relating to error messages.  A new
2625    prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
2626    has been added.
2627    
2628    ----------------------------------------------------------------------
2629    Name: Matthias Blume (blume (at) tti - c (dot) org)
2630    Date: 2003/08/11 15:45:00 CDT
2631    Tag: blume-20030811-windows
2632    Description:
2633    
2634    Version number bumped to 110.42.9.  NEW BOOTFILES!!!
2635    
2636        http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
2637    
2638    This patch restores SML/NJ's ability to run under win32.  There are a
2639    number of changes, including fixes for several bugs that had gone
2640    unnoticed until now:
2641    
2642      - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
2643        trying to run the win32 version from within cygwin.)
2644    
2645      - There are a number of simple .bat scripts that substitute for their
2646        corresponding Unix shell-scripts.  (See below.)
2647    
2648      - The internals of ml-build have been modified slightly.  The main
2649        difference is that instead of calling ".link-sml" (or link-sml.bat)
2650        using OS.Process.system, the ML process delegates this task back
2651        to the script.  Otherwise problems arise in mixed environments such
2652        as Cygwin where scripts look and work like Unix scripts, but
2653        where OS.Process.system cannot run them.
2654    
2655      - In CM, the srcpath pickler used native pathname syntax -- which
2656        is incorrect in the case of cross-compilation.  The new pickle format
2657        is independent of platform-specific naming conventions.
2658    
2659      - Path configuration files (such as lib/pathconfig) can now choose
2660        between native and standard syntax.  Placing a line of the form
2661    
2662            standard!
2663    
2664        into the file causes all subsequent paths to be interpreted using
2665        CM standard pathname syntax (= Unix conventions); a line
2666    
2667            native!
2668    
2669        switches back to native style.  This was needed so that
2670        path config files can be written portably, see src/system/pathconfig.
2671    
2672      - Runtime system:
2673    
2674          - win32-filesys.c:  get_file_time and set_file_time now
2675            access modification time, not creation time.
2676    
2677          - I/O code made aware of new array representation.
2678    
2679          - Bug fixes in X86.prim.masm.
2680    
2681       - src/system/makeml made aware of win32. (For use under cygwin
2682            and other Unix-environments for windows.)
2683    
2684       - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
2685         which caused BinIO.inputAll to fail consistently.
2686    
2687    .bat scripts:
2688    
2689       Windows .bat scripts assume that SMLNJ_HOME is defined.
2690    
2691       - sml.bat, ml-yacc.bat, ml-lex.bat:  Driver scripts for standalone
2692         applications (sml, ml-yacc, ml-lex).
2693       - ml-build.bat: analogous to ml-build.
2694       - config\install.bat:  Analogous to config/install.sh.  This requires
2695         that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
2696         (nmake etc. must be on the path, and vcvars32 must have been run.)
2697         Moreover, sources for ml-lex and ml-yacc need to exist under src,
2698         and the bootfile hierarchy must have been unpacked under
2699         sml.boot.x86-win32.
2700         The script is very primitive and does a poor job at error checking.
2701         It only installs the base system, ml-lex, and ml-yacc.  No other
2702         libraries are being installed (i.e., you get only those that
2703         are part of the compiler.)
2704       - link-sml.bat:  analogous to .link-sml, but not currently used
2705    
2706    Unrelated bug fixes:
2707    
2708      - ml-nlffigen now exports structures ST_* corresponding to incomplete
2709        types.
2710      - Added getDevice to PP/src/pp-debug-fn.sml.  (Would not compile
2711        otherwise.)
2712    
2713    ----------------------------------------------------------------------
2714    Name: Dave MacQueen (macqueen@cs.uchicago.edu)
2715    Date: 2003/06/17
2716    Tag: macqueen-20030617-bug895
2717    Description:
2718    
2719    Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
2720    Tag will be used for new development branch (mcz-branch) for
2721    use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
2722    
2723    ----------------------------------------------------------------------
2724    Name: Matthias Blume (blume (at) tti - c (dot) org)
2725    Date: 2003/05/27 16:55:00 CDT
2726    Tag: blume-20030527-polyeq
2727    Description:
2728    
2729    Tried to eliminated most cases of polymorphic equality.
2730    
2731    ----------------------------------------------------------------------
2732    Name: Matthias Blume (blume (at) tti - c (dot) org)
2733    Date: 2003/05/21 17:45:00 CDT
2734    Tag: blume-20030517-complete
2735    Description:
2736    
2737    Two changes:
2738    
2739      1. Added a flag for controlling whether non-exhaustive bindings will
2740         be treated as errors (default is false).
2741      2. Cleaned up the *entire* source tree so that CMB.make goes through
2742         without a single non-exhaustive match- or bind warning.
2743    
2744    ----------------------------------------------------------------------
2745    Name: Matthias Blume (blume (at) tti - c (dot) org)
2746    Date: 2003/05/17 10:20:00 CDT
2747    Tag: blume-20030517-absyn
2748    Description:
2749    
2750    1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
2751    
2752       This mainly affects the quality of error messages.  However, some
2753       of the code is now more straightforward than before. (Treatment of
2754       the above four constructs in translate.sml is much simpler than
2755       the "macro-expansion" that was going on before.  Plus, the mach-
2756       compiler no longer gets invoked just to be able to compile an
2757       if-expression.)
2758    
2759    2. The ErrorMsg.Error exception is now caught and absorbed by the
2760       interactive loop.
2761    
2762    ----------------------------------------------------------------------
2763    Name: Allen Leung
2764    Date: 2003/05/16 13:05:00 CDT
2765    Tag: leunga-20030516-cygwin-runtime
2766    Description:
2767    
2768        Ported the runtime system to cygwin, which uses the unix
2769    x86-unix bin files.  Missing/buggy features:
2770    
2771       o getnetbyname, getnetbyaddr: these functions seem to be missing in
2772         the Cygwin library.
2773       o Ctrl-C handling may be flaky.
2774       o Windows system calls and Windows I/O are not supported.
2775    
2776       A new set of binfiles is located at:
2777    
2778         http://www.dorsai.org/~leunga/boot.x86-unix.tgz
2779    
2780       This is only needed for bootstrapping the cygwin version of smlnj.
2781       Other x86 versions can use the existing binfiles.
2782    
2783    ----------------------------------------------------------------------
2784    Name: Matthias Blume
2785    Date: 2003/04/08 15:42:00 CDT
2786    Tag: blume-20030408-listpair
2787    Description:
2788    
2789    1. Added a target 'mlrisc' to installer.
2790    
2791    2. Added missing elements to structure ListPair.
2792    
2793    ----------------------------------------------------------------------
2794    Name: Allen Leung
2795    Date: 2003/01/07 10:40:00 EST
2796    Tag: leunga-20030107-int-rem
2797    Description:
2798    
2799    Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
2800    The arguments to the SUBL instruction were swapped.
2801    
2802    ----------------------------------------------------------------------
2803    Name: Matthias Blume
2804    Date: 2002/12/12 16:25:00 EST
2805    Tag: blume-20021212-risc-ra
2806    Description:
2807    
2808    Fixed a serious bug in the rewrite code for FP spilling/reloading that
2809    sent the RA into an infinite loop when floating point registers get
2810    spilled.  (Because of this bug, e.g., nucleic stopped compiling between
2811    110.37 and 110.38.)
2812    There was another set of potential problems related to the handling of
2813    MLRISC annotations (but those did not yet cause real problems, apparently).
2814    
2815    ----------------------------------------------------------------------
2816    Name: Matthias Blume
2817    Date: 2002/12/06 22:40:00 EST
2818    Tag: blume-20021206-cm-fileid
2819    Description:
2820    
2821    Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
2822    This fixes the problem of CM getting confused by files that suddenly
2823    change their identity (e.g., by getting unlinked and recreated by some
2824    text editor such as vi).  There might be a better/cheaper/cleaner way
2825    of doing this, but for now this will have to do.
2826    
2827    ----------------------------------------------------------------------
2828    Name: Matthias Blume
2829    Date: 2002/10/28 09:50:00 EST
2830    Tag: blume-20021028-typecheck
2831    Description:
2832    
2833    Exported structure Typecheck from $smlnj/viscomp/core.cm.
2834    
2835    ----------------------------------------------------------------------
2836    Name: Matthias Blume
2837    Date: 2002/10/17 09:10:00 EDT
2838    Tag: Release_110_42
2839    Description:
2840    
2841    In good old tradition, there has been a slight hiccup so that we have
2842    to patch 110.42 after the fact.   The old release tag has been replaced
2843    (see below).
2844    
2845    The change solves a problem with two competing approaches the
2846    configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
2847    each other's way.
2848    
2849    This change only affects the runtime system code and the installer script.
2850    (No new bootfiles.)
2851    
2852    ----------------------------------------------------------------------
2853    Name: Matthias Blume
2854    Date: 2002/10/16 12:00:00 EDT
2855    Tag: Release_110_42_removed
2856    Description:
2857    
2858    New working release.  New bootfiles.
2859    
2860    ----------------------------------------------------------------------
2861    Name: Matthias Blume
2862    Date: 2002/10/10 13:10:00 EDT
2863    Tag: blume-20021010-ppc-divs
2864    Description:
2865    
2866    The mltree operator DIVS must be implemented with an overflow check on
2867    the PPC because the hardware indicates divide-by-zero using "overflow" as
2868    well.
2869    
2870    ----------------------------------------------------------------------
2871    Name: Matthias Blume
2872    Date: 2002/07/23 11:45:00
2873    Tag: blume-20020723-smlnj-home
2874    Description:
2875    
2876    Sml now senses the SMLNJ_HOME environment variable.  If this is set,
2877    then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
2878    CM_PATHCONFIG is also set), the path configuration file is assumed
2879    to be in $SMLNJ_HOME/lib/pathconfig.  This way one can easily move
2880    the entire tree to some other place and everything will "just work".
2881    
2882    (Companion commands such as ml-build and ml-makedepend also sense this
2883    variable.)
2884    
2885    ----------------------------------------------------------------------
2886    Name: Matthias Blume
2887    Date: 2002/07/12 21:19:00 EDT
2888    Tag: blume-20020712-liveness
2889    Description:
2890    
2891    Exported two useful "step" functions from liveness module (MLRISC).
2892    
2893    ----------------------------------------------------------------------
2894    Name: Matthias Blume
2895    Date: 2002/07/05 16:00 EDT
2896    Tag: Release_110_41
2897    Description:
2898    
2899    New working release.  New bootfiles.
2900    
2901    ----------------------------------------------------------------------
2902    Name: Matthias Blume
2903    Date: 2002/07/05 10:25:00 EDT
2904    Tag: blume-20020705-btimp
2905    Description:
2906    
2907    Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
2908    other clients can set up backtracing support.
2909    
2910    ----------------------------------------------------------------------
2911    Name: Matthias Blume
2912    Date: 2002/06/25 17:23:00 EDT
2913    Tag: blume-20020625-fpmax
2914    Description:
2915    
2916    Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
2917    case.  (The sense of the isNaN test was reversed -- which made min and
2918    max always return their first argument.)
2919    
2920    ----------------------------------------------------------------------
2921    Name: Matthias Blume
2922    Date: 2002/06/11
2923    Tag: blume-20020611-unixpath
2924    Description:
2925    
2926    Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
2927    
2928    ----------------------------------------------------------------------
2929    Name: Matthias Blume
2930    Date: 2002/06/10 16:35:00 EDT
2931    Tag: blume-20020610-ieeereal
2932    Description:
2933    
2934    I back-ported my implementation of IEEEReal.fromString from the
2935    idlbasis-devel branch so that we can test it.
2936    
2937    Another small change is that ppDec tries to give more information
2938    than just "<sig>" in the case of functors.  However, this code is
2939    broken in some mysterious way if the functor's body's signature
2940    has not been declared by ascription but gets inferred from the
2941    implementation.  This needs fixing...
2942    
2943    ----------------------------------------------------------------------
2944    Name: Matthias Blume
2945    Date: 2002/05/31
2946    Tag: blume-20020531-btrace-mode
2947    Description:
2948    
2949    Resurrected SMLofNJ.Internals.BTrace.mode.  (It accidentally fell by
2950    the wayside when I switched over to using Controls everywhere.)
2951    
2952    ----------------------------------------------------------------------
2953    Name: Lal George
2954    Date: 2002/05/23 12:21:40 EDT
2955    Tag: george-20020523-visual-labels
2956    Description:
2957    
2958    Labels are now displayed in the graphical output to make
2959    the fall-through and target blocks obvious.
2960    
2961    ----------------------------------------------------------------------
2962    Name: Matthias Blume
2963    Date: 2002/05/22 11:03:00 EDT
2964    Tag: blume-20020522-shrink
2965    Description:
2966    
2967    John tweaked yesterday's fix for 1131 to handle an out-of-memory
2968    situation that comes up when allocating huge arrays.
2969    
2970    ----------------------------------------------------------------------
2971    Name: Matthias Blume
2972    Date: 2002/05/21 16:00:00 EDT
2973    Tag: Release_110_40
2974    Description:
2975    
2976    New working release (110.40).  New bootfiles.
2977    
2978    [Also: John Reppy fixed GC bug 1131.]
2979    
2980    ----------------------------------------------------------------------
2981    Name: Matthias Blume
2982    Date: 2002/05/21 12:35:00 EDT
2983    Tag: blume-20020521-cmdoc
2984    Description:
2985    
2986    CM documentation update.
2987    
2988    ----------------------------------------------------------------------
2989    Name: Matthias Blume
2990    Date: 2002/05/21 10:55:00 EDT
2991    Tag: blume-20020521-misc
2992    Description:
2993    
2994    - John tweaked runtime to be silent on heap export (except when
2995      GC messages are on).
2996    - I added a few more things (cross-compiling versions of CMB) to
2997      config/preloads (as suggestions).
2998    
2999    ----------------------------------------------------------------------
3000    Name: Matthias Blume
3001    Date: 2002/05/20 22:25:00 EDT
3002    Tag: blume-20020520-controls
3003    Description:
3004    
3005    - Added ControlUtil structure to control-lib.cm.
3006    - Use it throughout.
3007    - Used Controls facility to define MLRISC controls (as opposed to
3008      registering MLRISC control ref cells with Controls after the fact)
3009    - Fixed messed-up controls priorities.
3010    
3011    * Removed again all the stuff from config/preloads that one wouldn't
3012      be able to preload at the time the initial heap image is built.
3013      (Many libraries, e.g., CML, do not exist yet at this time.  The
3014       only libraries that can be preloaded via config/preloads are those
3015       that come bundled with the bootfiles.)
3016    
3017    ----------------------------------------------------------------------
3018    Name: Matthias Blume
3019    Date: 2002/05/20 10:59:00 EDT
3020    Tag: blume-20020520-preloads
3021    Description:
3022    
3023    Added a lot of commented-out suggestions for things to be included
3024    in config/preloads.
3025    
3026    ----------------------------------------------------------------------
3027    Name: Allen Leung
3028    Date: 2002/05/18 14:20:00 EDT
3029    Tag: leunga-20020518-mdl
3030    Description:
3031    
3032    o Made the mdl tool stuff compile and run again.
3033    o I've disabled all the stuff that depends on RTL specifications; they
3034      are all badly broken anyway.
3035    
3036    ----------------------------------------------------------------------
3037    Name: Matthias Blume
3038    Date: 2002/05/17 16:49:00 EDT
3039    Tag: blume-20020517-controls
3040    Description:
3041    
3042    0. John Reppy made several modifications to the SML/NJ library.
3043       In particular, there is a shiny new controls-lib.cm.
3044    
3045    1. Pushed new controls interface through compiler so that everything
3046       compiles again.
3047    
3048    2. Added FormatComb and FORMAT_COMB to the CML version of the
3049       SML/NJ library (so that CML compiles again).
3050    
3051    3. Modified init scripts because XXX_DEFAULT environment variables
3052       are no longer with us.  (Boot-time initialization is now done
3053       using the same environment variables that are also used for
3054       startup-time initialization of controls.)
3055    
3056    ----------------------------------------------------------------------
3057    Name: Lal George
3058    Date: 2002/05/15 09:20:10 EDT
3059    Tag: george-20020515-pseudo-op-decls
3060    Description:
3061    
3062            All pseudo-ops emitted before the first segment declaration
3063    such as TEXT, DATA, and BSS directives are assumed to be global
3064    declarations and are emitted first in the assembly file. This is
3065    useful in a number of situations where one has pseudo-ops that are not
3066    specific to any segment, and also works around the constraint that one
3067    cannot have client pseudo-ops in the TEXT segment.
3068    
3069            Because no segment is associated with these declarations it is
3070    an error to allocate any space or objects before the first segment
3071    directive and an exception will be raised. However, we cannot make
3072    this check for client pseudo-ops.
3073    
3074            These top level declarations are a field in the CFG graph_info.
3075    In theory you can continue to add to this field after the CFG has been
3076    built -- provided you know what you are doing;-)
3077    
3078    ----------------------------------------------------------------------
3079    Name: Matthias Blume
3080    Date: 2002/05/13 16:40:00 EDT
3081    Tag: blume-20020513-pp-etc
3082    Description:
3083    
3084    A few minor bugfixes:
3085    
3086      - Stopgap measure for bug recently reported by Elsa Gunter (ppDec).
3087        (Bogus printouts for redefined bindings still occur.  Compiler
3088        bug should no longer occur now.  We need to redo the prettyprinter
3089        from scratch.)
3090    
3091      - CM pathname printer now also adds escape sequences for ( and )
3092    
3093      - commend and docu fixes for ml-nlffi
3094    
3095    ----------------------------------------------------------------------
3096    Name: Matthias Blume
3097    Date: 2002/05/10 16:40:00 EDT
3098    Tag: blume-20020510-erg-textio
3099    Description:
3100    
3101    Applied the following bugfix provided by Emden Gansner:
3102    
3103        Output is corrupted when outputSubstr is used rather than output.
3104    
3105        The problem occurs when a substring
3106    
3107            ss = (s, dataStart, dataLen)
3108    
3109        where dataStart > 0, fills a stream buffer with avail bytes left.
3110        avail bytes of s, starting at index dataStart, are copied into the
3111        buffer, the buffer is flushed, and then the remaining dataLen-avail
3112        bytes of ss are copied into the beginning of the buffer. Instead of
3113        starting this copy at index dataStart+avail in s, the current code
3114        starts the copy at index avail.
3115    
3116        Fix:
3117        In text-io-fn.sml, change line 695 from
3118             val needsFlush = copyVec(v, avail, dataLen-avail, buf, 0)
3119        to
3120             val needsFlush = copyVec(v, dataStart+avail, dataLen-avail, buf, 0)
3121    
3122    ----------------------------------------------------------------------
3123    Name: Matthias Blume
3124    Date: 2002/04/12 13:55:00 EDT
3125    Tag: blume-20020412-assyntax
3126    Description:
3127    
3128    1. Grabbed newer assyntax.h from the XFree86 project.
3129    2. Fiddled with how to compile X86.prim.asm without warnings.
3130    3. (Very) Minor cleanup in CM.
3131    
3132    ----------------------------------------------------------------------
3133    Name: Matthias Blume
3134    Date: 2002/04/01 (no joke!) 17:07:00 EST
3135    Tag: blume-20020401-x86div
3136    Description:
3137    
3138    Added full support for div/mod/rem/quot on the x86, using the machine
3139    instruction's two results (without clumsily recomputing the remainder)
3140    directly where appropriate.
3141    
3142    Some more extensive power-of-two support was added to the x86 instruction
3143    selector (avoiding expensive divs, mods, and muls where they can be
3144    replaced with cheaper shifts and masks).  However, this sort of thing
3145    ought to be done earlier, e.g., within the CPS optimizer so that
3146    all architectures benefit from it.
3147    
3148    The compiler compiles to a fixed point, but changes might be somewhat
3149    fragile nevertheless.  Please, report any strange things that you might
3150    see wrt. div/mod/quot/rem...
3151    
3152    ----------------------------------------------------------------------
3153    Name: Matthias Blume
3154    Date: 2002/03/29 17:22:00
3155    Tag: blume-20020329-div
3156    Description:
3157    
3158    Fixed my broken div/mod logic.  Unfortunately, this means that the
3159    inline code for div/mod now has one more comparison than before.
3160    Fast paths (quotient > 0 or remainder = 0) are not affected, though.
3161    The problem was with quotient = 0, because that alone does not tell
3162    us which way the rounding went.  One then has to look at whether
3163    remainder and divisor have the same sign...  :(
3164    
3165    Anyway, I replaced the bootfiles with fresh ones...
3166    
3167    ----------------------------------------------------------------------
3168    Name: Matthias Blume
3169    Date: 2002/03/29 14:10:00 EST
3170    Tag: blume-20020329-inlprims
3171    Description:
3172    
3173    NEW BOOTFILES!!!    Version number bumped to 110.39.3.
3174    
3175    Primops have changed. This means that the bin/boot-file formats have
3176    changed as well.
3177    
3178    To make sure that there is no confusion, I made a new version.
3179    
3180    
3181    CHANGES:
3182    
3183    * removed REMT from mltree (remainder should never overflow).
3184    
3185    * added primops to deal with divisions of all flavors to the frontend
3186    
3187    * handled these primops all the way through so they map to their respective
3188      MLRISC support
3189    
3190    * used these primops in the implementation of Int, Int32, Word, Word32
3191    
3192    * removed INLDIV, INLMOD, and INLREM as they are no longer necessary
3193    
3194    * parameterized INLMIN, INLMAX, and INLABS by a numkind
3195    
3196    * translate.sml now deals with all flavors of INL{MIN,MAX,ABS}, including
3197      floating point
3198    
3199    * used INL{MIN,MAX,ABS} in the implementation of Int, Int32, Word, Word32,
3200      and Real (but Real.abs maps to a separate floating-point-only primop)
3201    
3202    
3203    TODO items:
3204    
3205    * Hacked Alpha32 instruction selection, disabling the selection of REMx
3206      instructions because the machine instruction encoder cannot handle
3207      them.  (Hppa, PPC, and Sparc instruction selection did not handle
3208      REM in the first place, and REM is supported by the x86 machine coder.)
3209    
3210    * Handle DIV and MOD with DIV_TO_NEGINF directly in the x86 instruction
3211      selection phase.  (The two can be streamlined because the hardware
3212      delivers both quotient and remainder at the same time anyway.)
3213    
3214    * Think about what to do with "valOf(Int32.minInt) div ~1" and friends.
3215      (Currently the behavior is inconsistent both across architectures and
3216      wrt. the draft Basis spec.)
3217    
3218    * Word8 should eventually be handled natively, too.
3219    
3220    * There seems to be one serious bug in mltree-gen.sml.  It appears, though,
3221      as if there currently is no execution path that could trigger it in
3222      SML/NJ.  (The assumptions underlying functions arith and promotable do not
3223      hold for things like multiplication and division.)
3224    
3225    ----------------------------------------------------------------------
3226    Name: Matthias Blume
3227    Date: 2002/03/27 16:27:00 EST
3228    Tag: blume-20020327-mlrisc-divisions
3229    Description:
3230    
3231    Added support for all four division operations (ML's div, mod, quot,
3232    and rem) to MLRISC.  In the course of doing so, I also rationalized
3233    the naming (no more annoying switch-around of DIV and QUOT), by
3234    parameterizing the operation by div_rounding_mode (which can be either
3235    DIV_TO_ZERO or DIV_TO_NEGINF).
3236    
3237    The generic MLTreeGen functor takes care of compiling all four
3238    operations down to only round-to-zero div.
3239    
3240    Missing pieces:
3241    
3242      * Doing something smarter than relying on MLTreeGen on architectures
3243        like, e.g., the x86 where hardware division delivers both quotient and
3244        remainder at the same time.  With this, the implementation of the
3245        round-to-neginf operations could be further streamlined.
3246    
3247      * Remove inlining support for div/mod/rem from the frontend and replace it
3248        with primops that get carried through to the backend.  Do this for all
3249        int and word types.
3250    
3251    ----------------------------------------------------------------------
3252    Name: Matthias Blume
3253    Date: 2002/03/25 17:25:00 EST
3254    Tag: blume-20020325-divmod
3255    Description:
3256    
3257    I improved (hopefully without breaking them) the implementation of Int.div,
3258    Int.mod, and Int.rem.   For this, the code in translate.sml now takes
3259    advantage of the following observations:
3260    
3261      Let  q = x quot y      r = x rem y
3262           d = x div  y      m = x mod y
3263    
3264    where "quot" is the round-to-zero version of integer division that
3265    hardware usually provides.  Then we have:
3266    
3267         r = x - q * y        where neither the * nor the - will overflow
3268         d = if q >= 0 orelse x = q * y then q else q - 1
3269                              where neither the * nor the - will overflow
3270         m = if q >= 0 orelse r = 0 then r else r + y
3271                              where the + will not overflow
3272    
3273    This results in substantial simplification of the generated code.
3274    The following table shows the number of CFG nodes and edges generated
3275    for
3276            fun f (x, y) = x OPER y
3277            (* with OPER \in div, mod, quot, rem *)
3278    
3279    
3280        OPER | nodes(old) | edges(old) | nodes(new) | edges(new)
3281        --------------------------------------------------------
3282         div |         24 |         39 |         12 |         16
3283         mod |         41 |         71 |         12 |         16
3284        quot |          8 |         10 |          8 |         10
3285         rem |         10 |         14 |          8 |         10
3286    
3287    
3288    ----------------------------------------------------------------------
3289    Name: Matthias Blume
3290    Date: 2002/03/25 22:06:00 EST
3291    Tag: blume-20020325-cprotobug
3292    Description:
3293    
3294    Fixed a bug in cproto (c prototype decoder).
3295    
3296    ----------------------------------------------------------------------
3297    Name: Matthias Blume
3298    Date: 2002/03/25 16:00:00 EST
3299    Tag: blume-20020325-raw-primops
3300    Description:
3301    
3302    I did some cleanup to Allen's new primop code and
3303    replaced yesterday's bootfiles with new ones.
3304    (But they are stored in the same place.)
3305    
3306    ----------------------------------------------------------------------
3307    Name: Matthias Blume
3308    Date: 2002/03/24 22:40:00 EST
3309    Tag: blume-20020324-bootfiles
3310    Description:
3311    
3312    Made the bootfiles that Allen asked for.
3313    
3314    ----------------------------------------------------------------------
3315    Name: Allen Leung
3316    Date: 2002/03/23 15:50:00 EST
3317    Tag: leunga-20020323-flint-cps-rcc-primops
3318    Description:
3319    
3320      1. Changes to FLINT primops:
3321    
3322        (* make a call to a C-function;
3323         * The primop carries C function prototype information and specifies
3324         * which of its (ML-) arguments are floating point. C prototype
3325         * information is for use by the backend, ML information is for
3326         * use by the CPS converter. *)
3327      | RAW_CCALL of { c_proto: CTypes.c_proto,
3328                       ml_args: ccall_type list,