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Diff of /sml/trunk/HISTORY

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revision 1211, Tue May 21 14:54:32 2002 UTC revision 1761, Fri Feb 25 21:16:04 2005 UTC
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13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Matthias Blume (blume (at) tti - c (dot) org)
17    Date: 2005/02/25 15:00:00 CST
18    Tag: Release_110_53
19    Description:
20    
21    New working version (110.53).  NEW BOOTFILES!
22    
23    ----------------------------------------------------------------------
24    Name: Matthias Blume (blume (at) tti - c (dot) org)
25    Date: 2005/02/25 14:50:00 CST
26    Tag: blume-20050225-susp
27    Description:
28    
29    Brought back SMLofNJ.Susp.  The underlying suspension type is the one
30    implemented in Core -- which means that it is the same as the one used
31    by the lazy extension.
32    
33    ----------------------------------------------------------------------
34    Name: Matthias Blume (blume (at) tti - c (dot) org)
35    Date: 2005/02/24 16:50:00 CST
36    Tag: blume-20050224-cml-atom
37    Description:
38    
39    Simpler and at the same time more general implementation of structure
40    Atom in CML.
41    
42    ----------------------------------------------------------------------
43    Name: Matthias Blume (blume (at) tti - c (dot) org)
44    Date: 2005/02/15 17:35:00 CST
45    Tag: blume-20050215-tools
46    Description:
47    
48    Created new "tools" directory under "src" and moved "TraceDebugProf"
49    there.
50    
51    ----------------------------------------------------------------------
52    Name: Matthias Blume (blume (at) tti - c (dot) org)
53    Date: 2005/02/10 17:55:00 CST
54    Tag: blume-20050210-longlong
55    Description:
56    
57    Implemented "long long" arguments and results for NLFFI.  (Only the
58    PPC/MacOS implementation is complete, the other backends still need to
59    be updated.)
60    
61    ----------------------------------------------------------------------
62    Name: Matthias Blume (blume (at) tti - c (dot) org)
63    Date: 2005/01/24 17:40:00 CST
64    Tag: blume-20050124-mlyacc
65    Description:
66    
67    Minor cleanup in ML-Yacc rule printing mechanism.  This should fix a
68    problem with certain "as" patterns which previously got rendered
69    using incorrect syntax.
70    
71    ----------------------------------------------------------------------
72    Name: Matthias Blume (blume (at) tti - c (dot) org)
73    Date: 2005/01/18 12:00:00 CST
74    Tag: blume-20050118-profile
75    Description:
76    
77    Made time profiling code (interrupt handler) in runtime system aware
78    of new array representation.
79    
80    ----------------------------------------------------------------------
81    Name: Matthias Blume (blume (at) tti - c (dot) org)
82    Date: 2005/01/14 18:00:00 CST
83    Tag: blume-20050114-heap2exec
84    Description:
85    
86    Implemented new (but still experimental) heap2exec facility.  This is
87    tested under Mac OS X and should work under Linux (will test shortly).
88    It will probably also work on the Sparc (will test some time later).
89    
90      - removed old "HACKED_STANDALONE" hack from runtime
91    
92    To be able to test this, uncomment the request for "heap2asm" in
93    config/targets prior to installation.  (Notice that this is different
94    from "heap2exec" mentioned below.  Not a typo.)
95    
96    To perform an actual test, run the command
97    
98       $ bin/heap2exec heapfile execfile
99    
100    (You can put heap2exec on your shell's path.)
101    
102    For example, run
103    
104      $ bin/heap2exec bin/.heap/ml-yacc.ppc-darwin mly
105    
106    This will create a standalone executable called "mly" which you can
107    then invoke directly as a command.
108    
109    ----------------------------------------------------------------------
110    Name: Matthias Blume (blume (at) tti - c (dot) org)
111    Date: 2005/01/07 11:44:00 CST
112    Tag: blume-20050107-mlstring
113    Description:
114    
115    fixed off-by-one error in ML_STRING macro (globals.c)
116    
117    ----------------------------------------------------------------------
118    Name: Matthias Blume (blume (at) tti - c (dot) org)
119    Date: 2004/12/23 18:00:00 CST
120    Tag: blume-20041223-santa
121    Description:
122    
123    Made ml-build script "smarter" (but only very little).
124    
125    ----------------------------------------------------------------------
126    Name: Matthias Blume (blume (at) tti - c (dot) org)
127    Date: 2004/12/21 15:05:00 CST
128    Tag: blume-20041221-longlong
129    Description:
130    
131    * Implemented access to signed and unsigned long long data in NLFFI.
132    (The parameter-passing part of the picture has not complete. But
133    data structure access seems to work.)
134    
135    * Fixed CM's incorrect assumption that the PPC is little-endian.
136      (On the Mac, it is big-endian.  And that's currently our only
137      PPC platform.)
138    
139    ----------------------------------------------------------------------
140    Name: Matthias Blume (blume (at) tti - c (dot) org)
141    Date: 2004/12/21 12:50:00 CST
142    Tag: blume-20041221-memory
143    Description:
144    
145    Some cleanup in the $c/memory.cm library: separated some concerns by
146    moving allocation code and memory access code each into their own
147    files.
148    
149    ----------------------------------------------------------------------
150    Name: Allen Leung (leunga (at) reservoir (dot) com)
151    Date: 2004/12/17 16:12:00 EST
152    Tag: leunga-20041217-cygwin-smlnj-home
153    Description:
154    
155        The Unix I/O library of SML/NJ on cygwin does not understand
156    Windows style pathname, so problems arise when SMLNJ_HOME is set
157    to a Windows style pathname.  _run-sml now converts SMLNJ_HOME
158    to a POSIX pathname on cygwin.
159    
160    ----------------------------------------------------------------------
161    Name: Matthias Blume (blume (at) tti - c (dot) org)
162    Date: 2004/12/16 13:35:00 CST
163    Tag: Release_110_52
164    Description:
165    
166    Last-minute changes incorporated into 110.52.  Release tag moved.
167    
168    The changes:
169       - HashString.hashString' -> HashString.hashSubstring
170       - bug fix in UnivariateStats
171    
172    ----------------------------------------------------------------------
173    Name: Matthias Blume (blume (at) tti - c (dot) org)
174    Date: 2004/12/15 23:40:00 CST
175    Tag: blume-20041215-hashSubstring
176    Description:
177    
178    - HashString.hashString' -> HashString.hashSubstring
179    - corresponding changes in atom.sml
180    - "de-compressed" (aka. un-obfuscated) code for UnivariateStats and
181      added some comments
182    
183    ----------------------------------------------------------------------
184    Name: Matthias Blume (blume (at) tti - c (dot) org)
185    Date: 2004/12/15 15:30:00 CST
186    Tag: (Release_110_52)
187    Description:
188    
189    New working version (110.52).  NEW BOOTFILES!
190    
191    ----------------------------------------------------------------------
192    Name: Matthias Blume (blume (at) tti - c (dot) org)
193    Date: 2004/12/15 12:45:00 CST
194    Tag: blume-20041215-spaces
195    Description:
196    
197    More on the space problem (this time for Win32).
198    
199    ----------------------------------------------------------------------
200    Name: Matthias Blume (blume (at) tti - c (dot) org)
201    Date: 2004/12/14 17:30:00 CST
202    Tag: blume-20041214-spaces
203    Description:
204    
205    Hacked some of the scripts (in particular: the installer) to cope with
206    spaces in filenames a bit better.  But beware: the current "solution"
207    is likely still full of bugs and inherently incomplete.  (We need to
208    do away with those shell scripts for a comprehensive solution.)
209    
210    ----------------------------------------------------------------------
211    Name: Matthias Blume (blume (at) tti - c (dot) org)
212    Date: 2004/12/13 14:45:00 CST
213    Tag: blume-20041213-ml-makedepend
214    Description:
215    
216    Fixed bug in code for ml-makedepend.
217    
218    ----------------------------------------------------------------------
219    Name: Matthias Blume (blume (at) tti - c (dot) org)
220    Date: 2004/12/09 16:30:00 CST
221    Tag: blume-20041209-statistics
222    Description:
223    
224    Added two simple but potentially useful statistics modules to SML/NJ Library.
225    (See CHANGES file there.)
226    
227    ----------------------------------------------------------------------
228    Name: Matthias Blume (blume (at) tti - c (dot) org)
229    Date: 2004/12/01 16:50:00 CST
230    Tag: blume-20041201-atom
231    Description:
232    
233    smlnj-lib:
234    
235      Added function HashString.hashString' for substrings.
236      Hand-inlined CharVector.foldl into HashString (for speed).
237      Modified implementation of structure Atom to avoid extracting
238      strings from substrings unless necessary.
239      (Also see CHANGES file for smlnj-lib.)
240    
241    ----------------------------------------------------------------------
242    Name: Matthias Blume (blume (at) tti - c (dot) org)
243    Date: 2004/11/24 22:15:00 CST
244    Tag: blume-20041124-cml
245    Description:
246    
247    Made sure CML compiles when Position = Int64.
248    
249    ----------------------------------------------------------------------
250    Name: Matthias Blume (blume (at) tti - c (dot) org)
251    Date: 2004/11/24 14:30:00 CST
252    Tag: blume-20041124-position
253    Description:
254    
255    The compiler can now be compiled in a mode that makes structure Position
256    equal to Int64.  The default, however, is unchanged (Position = Int31)
257    for the time being.
258    
259    To enable 64-bit positions, use the following procedure:
260    
261    1. Start sml
262    2. Autoload $smlnj/cmb.cm (if not already autoloaded)
263    3. Type
264          #set (CMB.symval "USE_64_BIT_POSITIONS") (SOME 1);
265    4. Run CMB.make() as usual.
266    
267    This is barely tested.  The only test so far was a little SML program
268    counting the number of characters in an 8-gigabyte file by
269    reading it character-by-character.  That test was successful.
270    
271    In support of 64-bit positions, a number of new functions have been
272    added to the runtime system.
273    
274    ----------------------------------------------------------------------
275    Name: Matthias Blume (blume (at) tti - c (dot) org)
276    Date: 2004/11/23 14:45:00 CST
277    Tag: blume-20041123-useFile
278    Description:
279    
280    Fixed a problem with unhelpful error messages related to problems with
281    .cm- or .sml files that appear as part of the sml command line.
282    
283    ----------------------------------------------------------------------
284    Name: Matthias Blume (blume (at) tti - c (dot) org)
285    Date: 2004/11/18 15:40:00 CST
286    Tag: Release_110_51
287    Description:
288    
289    New working version (110.51).  NEW BOOTFILES!
290    
291    ----------------------------------------------------------------------
292    Name: Matthias Blume (blume (at) tti - c (dot) org)
293    Date: 2004/11/18 15:35:00 CST
294    Tag: <none>
295    Description:
296    
297    Enabled dlopen and friends for FreeBSD (as recommended by Johannes 5
298    Joemann).
299    
300    ----------------------------------------------------------------------
301    Name: Allen Leung (leunga (at) reservoir (dot) com)
302    Date: 2004/11/17 16:05:21 EST 2004
303    Tag: leunga-20041117-mlrisc-live-kill
304    Description:
305    
306       Added support for MLTree constructs LIVE and KILL
307    to all the architectures.
308    
309    ----------------------------------------------------------------------
310    Name: Matthias Blume (blume (at) tti - c (dot) org)
311    Date: 2004/11/13 00:20:00 CST
312    Tag: blume-20041113-versiontool
313    Description:
314    
315    - Stripped down the versiontool: It now only handles the version number.
316      The date string is generated at bootstrap time (during makeml).
317    
318    - In a previous commit, fixed a minor issue with how polyequal is being
319      translated.  In particular, the code now "looks through" abstractions.
320      This results in slightly fewer polyEqual warnings and hopefully slightly
321      more efficient code.  Important examples for where this matters are
322      the new int64 and word64 types.
323    
324    ----------------------------------------------------------------------
325    Name: Matthias Blume (blume (at) tti - c (dot) org)
326    Date: 2004/11/12 00:30:00 CST
327    Tag: blume-20041112-int64
328    Description:
329    
330    Structure Int64 fully hooked in.  (The implementation is not very
331    efficient, though.)
332    
333    ----------------------------------------------------------------------
334    Name: Matthias Blume (blume (at) tti - c (dot) org)
335    Date: 2004/11/11 17:30:00 CST
336    Tag: blume-20041111-more64
337    Description:
338    
339    All the pieces of Word64 are now there, with the exception of the
340    conversions from and to LargeWord. (Eventually these need to be identities,
341    but for the time being they don't even make sense because LargeWord is
342    32-bit wide.)
343    
344    Also started to add similar support for Int64, but major pieces of that
345    are still missing.
346    
347    ----------------------------------------------------------------------
348    Name: Matthias Blume (blume (at) tti - c (dot) org)
349    Date: 2004/11/11 00:15:00 CST
350    Tag: blume-20041111-word64
351    Description:
352    
353    Structure Word64 is now (almost) complete, word literals and patterns
354    seem to work.  There are a few odd pieces missing.  In particular,
355    I didn't do the {from,to}LargeWord parts because LargeWord is still Word32
356    at the moment.
357    
358    Making Word64 official would mean that LargeWord becomes Word64.  But
359    this requires extreme care because most word-word conversions have to
360    go through LargeWord, so making a mistake means loss of efficiency or
361    worse.  Eventually there will be a solution similar to (but actually
362    simpler than) what I did with IntInf.
363    
364    ----------------------------------------------------------------------
365    Name: Matthias Blume (blume (at) tti - c (dot) org)
366    Date: 2004/11/10 18:12:00 CST
367    Tag: blume-20041110-64bit
368    Description:
369    
370    More 64-bit hacking (but still not even half-way there yet).
371    Also, some assorted improvements to the handling of 8-bit words.
372    
373    ----------------------------------------------------------------------
374    Name: Matthias Blume (blume (at) tti - c (dot) org)
375    Date: 2004/11/09 17:50:00 CST
376    Tag: <none>
377    Description:
378    
379    Started adding some infrastructure for supporting 64-bit int- and
380    word-types.  (Still in its very early stages.)
381    
382    ----------------------------------------------------------------------
383    Name: Matthias Blume (blume (at) tti - c (dot) org)
384    Date: 2004/10/28 10:45:00 CDT
385    Tag: Release_110_50
386    Description:
387    
388    New working version (110.50).  NEW BOOTFILES!
389    
390                 =====================
391    
392    Also:
393    
394      - Changend config/srcarchiveurl from a file just
395        containing the URL string into a file containing
396        shell script code.  The code has access to the $VERSION variable.
397      - Made corresponding changes to config/install.sh and config/unpack.
398      - Default contents of config/srcarchiveurl uses $VERSION and
399        normally does not have to be edited to reflect a version change.
400    
401      (As a result, a version change can be done by just editing
402       config/version, the rest is now automatic.)
403    
404    ----------------------------------------------------------------------
405    Name: Matthias Blume (blume (at) tti - c (dot) org)
406    Date: 2004/10/27 17:50:00 CDT
407    Tag: blume-20041027-btrace-msg
408    Description:
409    
410    BackTrace.monitor now also reports the source of the exception that
411    triggered the trace.
412    
413    ----------------------------------------------------------------------
414    Name: Matthias Blume (blume (at) tti - c (dot) org)
415    Date: 2004/10/27 17:20:00 CDT
416    Tag: blume-20041027-x86-c-calls
417    Description:
418    
419    This is the HISTORY entry for two earlier commits, both concerning
420    the x86 c-calls code in MLRISC:
421    
422      - added a missing LOAD in the code that deals with struct arguments
423      - made sure the caller does not add the wrong number of bytes to the
424        stack pointer after a call of a function returning a struct
425        (the callee already pops the implicit argument which points to
426         the space reserved for the result)
427    
428    ----------------------------------------------------------------------
429    Name: Allen Leung (leunga (at) reservoir (dot) com)
430    Date: 2004/10/24 14:00:00 EST
431    Tag: leunga-20041024-x86-gas-fucomip
432    Description:
433    
434       John discovered a bug in the syntax of fucomip.
435       The opcodes FU?COMIP? have been changed to
436    
437           fu?comip? %st(i), %st
438    
439    ----------------------------------------------------------------------
440    Name: Matthias Blume (blume (at) tti - c (dot) org)
441    Date: 2004/10/20 15:06:00 CDT
442    Tag: blume-20041020-standalone-backtrace
443    Description:
444    
445    Added a mechanism for getting back-trace information from standalone
446    programs.  Here is how it works:
447    
448       1. The part of the program from which you want to get backtrace
449          information (usually the whole program) should be wrapped with
450          BackTrace.monitor.  This is a (unit->'a)->'a function, and your
451          main program could be modified from something like
452    
453             fun main (pgm, args) = ...
454    
455         to
456    
457            fun main (pgm, args) = BackTrace.monitor (fn () => ...)
458    
459       2. To be able to access BackTrace.monitor, you have to add
460          library $smlnj-tdp/plugins.cm to the .cm file that contains your
461          main function.
462    
463       3. Remove all compiled code (i.e., all the .cm/ subdirectories that
464          CM might have created in the past for your project).
465    
466       4. Build the system using this command line:
467    
468             ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
469                      myprog.cm MyProg.main myprog
470    
471          instead of the usual
472    
473             ml-build myprog.cm MyProg.main myprog
474    
475    I changed a library name:
476    
477       $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
478    
479    New libraries:
480    
481       $smlnj-tdp/back-trace.cm
482          -- when loaded causes the back-trace plugin to be installed
483       $smlnj-tdp/coverage.cm
484          -- when loaded causes the coverage plugin to be installed
485    
486    ----------------------------------------------------------------------
487    Name: Matthias Blume (blume (at) tti - c (dot) org)
488    Date: 2004/10/18 16:45:00 CDT
489    Tag: blume-20041018-groupowner
490    Description:
491    
492    Added an "obsolete" warning for the "group owner" syntax to CM's parser.
493    
494    Eliminated group owner specs from .cm files throughout the source tree.
495    
496    ----------------------------------------------------------------------
497    Name: Matthias Blume (blume (at) tti - c (dot) org)
498    Date: 2004/10/15 15:45:00 CDT
499    Tag: blume-20041015-coverage
500    Description:
501    
502    * Test coverage tool added!
503    * Further reorganization of tracing-, debugging-, and profiling support:
504    
505        - moved original BTImp -- now called BackTrace -- into a separate
506          library called $/trace-debug-profile.cm
507        - eliminated all mentions of BTrace from SMLofNJ.Internals
508        - only the instrumentation mechanism is now left in the compiler proper
509        - BackTrace module is a plugin which is NOT plugged in by default
510        - Coverage module is another such plugin
511    
512    To get the benefits of any of these plugin modules, the code in
513    question must be compiled with tdp instrumentation turned on.  This
514    can be done by setting SMLofNJ.Internals.TDP.mode to true.
515    (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
516    
517    Plugins are selected at link time.  (Pre-compiled instrumented code
518    can be re-loaded with different plugins in effect.)  When an
519    instrumented module is linked, whatever plugins are at that time
520    enabled will come into effect for that module.
521    
522    To enable the back-trace plugin, load library $/trace-debug-profile.cm
523    and invoke BackTrace.install() (e.g., from the interactive prompt).
524    To enable the coverage plugin, load the same library and invoke
525    Coverage.install().
526    
527    Back-traces are generated automatically on uncaught exceptions and
528    when the code in question explicitly invokes BackTrace.trigger().
529    
530    Coverage (and execution frequency-) information must be queried
531    explicitly by calling Coverage.not_covered and Coverage.hot_spots.
532    
533    ----------------------------------------------------------------------
534    Name: Matthias Blume (blume (at) tti - c (dot) org)
535    Date: 2004/10/14 17:40:00 CDT
536    Tag: blume-20041014-tdp-core
537    Description:
538    
539    Snapshot of a significant overhaul of how the trace/debug/profile support
540    is hooked into the system (specifically: Core and SMLofNJ.Internals).
541    
542    ----------------------------------------------------------------------
543    Name: Matthias Blume (blume (at) tti - c (dot) org)
544    Date: 2004/10/13 16:34:00 CDT
545    Tag: blume-20041013-tdp
546    Description:
547    
548    Some rationalization of names:
549    
550       structure BTrace -> structure TDPInstrument
551       etc.
552    
553    This is is preparation of using the original back-trace
554    instrumentation for other purposes.  "TDP" stands for
555    Trace/Debug/Profile.
556    
557    The control flag controlling whether instrumentation is on or off is now
558    registered under a different name, so instead of running sml as
559    
560     sml -Cinstrument.btrace-mode=true
561    
562    one has to say
563    
564     sml -Ctdp.instrument=true
565    
566    ----------------------------------------------------------------------
567    Name: Matthias Blume (blume (at) tti - c (dot) org)
568    Date: 2004/10/11 16:37:00 CDT
569    Tag: blume-20041011-regions
570    Description:
571    
572    Made some minor modifications to elabcore.sml to have source regions
573    be propagated more tightly -- resulting in better (i.e., smaller)
574    regions being reported in error- and debug messages.
575    
576    ----------------------------------------------------------------------
577    Name: Matthias Blume (blume (at) tti - c (dot) org)
578    Date: 2004/10/08 22:50:00 CDT
579    Tag: blume-20041008-cmkw
580    Description:
581    
582    Fixed handling of keywords in .cm files: After seeing "is" the lexer
583    treats subsequent occurrences of "group", "library", "source", "is",
584    "*", and "-" as ordinary identifiers rather than keywords.
585    
586    Most seriously, this fixes a problem with CM's "shell" tool.  The tool
587    is supposed to accept a tool argument called "source", but this did
588    not work because of the clash with the keyword.
589    
590    ----------------------------------------------------------------------
591    Name: Matthias Blume (blume (at) tti - c (dot) org)
592    Date: 2004/10/07 16:00:00 CDT
593    Tag: blume-20041007-cleanup
594    Description:
595    
596    Assorted cleanup work:
597    
598      - got rid of intstrmap in favor of using the library's
599        hash table implementation
600      - threw out most of the pathnames stuff, as it was not used anyway
601      - simplified tokentable implementation
602      - fixed some minor spelling errors
603    
604    ----------------------------------------------------------------------
605    Name: Matthias Blume (blume (at) tti - c (dot) org)
606    Date: 2004/10/06 15:15:15 CDT
607    Tag: blume-20041006-handler
608    Description:
609    
610    Cleaned up the absyn to reflect the invariant that HANDLE always
611    carries a FNexp as part of the type definition.  This eliminates some
612    superfluous sanity checks at runtime down the road.
613    
614    Some minor cleanup of the btrace code.
615    
616    ----------------------------------------------------------------------
617    Name: Matthias Blume (blume (at) tti - c (dot) org)
618    Date: 2004/10/01 10:20:30 CDT
619    Tag: blume-20041001-slave
620    Description:
621    
622    Added hack to make slave mode work in the presence of the version
623    tool.  (Still, since the master does two passes over the code for
624    CMB.make, the release number gets bumped twice when slaves are
625    attached.  I don't know if this is worth fixing...)
626    
627    ----------------------------------------------------------------------
628    Name: Matthias Blume (blume (at) tti - c (dot) org)
629    Date: 2004/09/30 10:55:00 CDT
630    Tag: blume-20040930-version
631    Description:
632    
633    * Moved the "version" magic into its own little library under
634      src/system/smlnj/internal.  This avoids expensive reconstruction of
635      a stable src/compiler/core.cm.
636    
637    * At the same time, structure CompilerVersion is now known as
638      structure SMLNJVersion.
639    
640    * Arranged for the version tool to NOT kick in when rebuilding the system
641      (makeml -rebuild, fixpt).  Otherwise one would never reach a fixpoint.
642      Also, loading the versiontool does not work when rebuilding the system
643      because CM is not properly initialized at that time.
644    
645    ----------------------------------------------------------------------
646    Name: Matthias Blume (blume (at) tti - c (dot) org)
647    Date: 2004/09/29 14:00:00 CDT
648    Tag: blume-20040929-autoversion
649    Description:
650    
651    Implemented some CM magic to have
652        file src/compiler/TopLevel/main/version.sml
653    generated automagically.
654    The version is taken from two files: config/version and config/release.
655    The first is expected to contain a two-part version number such as 110.49.
656    The second should contain a single number, but it may be missing.
657    
658    If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
659    time the version tool is loaded (which is the first time you say CMB.make),
660    then the tool will increment the value stored in config/release every
661    time CMB.make is invoked.
662    
663    The binfile format is now insensitive to anything beyond the first
664    two components of a version number, so bumping the release does not render
665    binfiles incompatible.  Auto-bumping can be used to keep track of versions
666    during development without invalidating existing binfiles.
667    
668    In any case, every CMB.make updates the date information in version.sml.
669    (This is the date that is printed in the banner.)
670    
671    ----------------------------------------------------------------------
672    Name: Matthias Blume (blume (at) tti - c (dot) org)
673    Date: 2004/09/28 10:53:00 CDT
674    Tag: blume-20040928-controls
675    Description:
676    
677    Some cleanup of the controls code.
678    
679    ----------------------------------------------------------------------
680    Name: Matthias Blume (blume (at) tti - c (dot) org)
681    Date: 2004/09/27 22:08:00 CDT
682    Tag: blume-20040927-controls
683    Description:
684    
685    Added two pieces of functionality to the Controls interface:
686    
687    1.   val save'restore: 'a control -> unit -> unit
688    
689       grabs the current value of the control in stage 1 and restores it
690       in stage 2.
691    
692    2.   val set' : 'a control * 'a -> unit -> unit
693    
694       stores the given value into the control in stage 2 (i.e., delayed)
695       but does all error checking in stage 1.
696       (This is for string controls that need to do parse their argument --
697        something that might fail.  In some cases, notably in CM, one
698        already knows the intended argument but wants to delay the actual
699        assignment until a time when error recovery would be more difficult.)
700    
701    Changed the handling of controls in tool arguments to classes "sml" and
702    "lazysml":
703       - use Controls.save'restore as a more robust way of restoring the
704         old value (in particular: without having to re-parse the string)
705       - use controls to handle the "overload" keyword in the init group
706         (I believe this change actually fixes a long-standing obscure bug.)
707    
708    ----------------------------------------------------------------------
709    Name: Matthias Blume (blume (at) tti - c (dot) org)
710    Date: 2004/09/27 17:00:00 CDT
711    Tag: blume-20040927-lazysml
712    Description:
713    
714    Added a new tool class called "lazysml" to CM's tool chest.  The only
715    difference to "sml" is that compilation is done with Control.lazysml
716    set to true.  A source of class "lazysml" is automatically recognized
717    by a file name suffix of ".lml".
718    
719    In addition to the above feature, the original class "sml" now also
720    supports a tool argument "lazy" which has the same effect.  As a
721    result, the following three lines are equivalent:
722    
723        foo.sml : lazysml
724        foo.sml : sml (lazy)
725        foo.sml (lazy)
726    
727    The setting goes into effect both during parsing and during
728    compilation.  The original setting is restored right after parsing and
729    after compilation, respectively.
730    
731    In addition to all the above, there is also a general mechanism to set
732    ANY of the "controls" that are available at the command line via
733    "-C..." on a per-sml-file basis.  The same rules that apply for "lazy"
734    apply as well. (In fact, "lazy" is implemented as a special case of
735    the general mechanism.)
736    
737    The .cm file syntax uses a new keyword tool argument called "with".
738    There are several ways of indicating the desired settings:
739    
740        foo.sml (with:parser.quotations=true)
741        foo.sml (with:(name:parser.quotations value:true))
742        foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
743        foo.sml (with:(name1=value1 name2=value2 ...))
744        foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
745    
746        etc.
747    
748    Another possible abbreviation is to leave out the =v or value:v part
749    if the name refers to a boolean control (in which case the value is
750    taken to be true).  Thus, one could get lazy sml also by saying:
751    
752        foo.sml (with:parser.lazy-keyword=true)
753        foo.sml (with:parser.lazy-keyword)
754        foo.sml (with:(name:parser.lazy-keyword value:true))
755        foo.sml (with:(name:parser.lazy-keyword))
756    
757    ----------------------------------------------------------------------
758    Name: Matthias Blume (blume (at) tti - c (dot) org)
759    Date: 2004/09/24 16:22:00 CDT
760    Tag: blume-20040924-ppc-long-branch
761    Description:
762    
763    Turned message about "emiting long form of branch" off by default.
764    Added a control flag to turn it back on when desired.
765    
766    ----------------------------------------------------------------------
767    Name: Matthias Blume (blume (at) tti - c (dot) org)
768    Date: 2004/09/24 16:05:00 CDT
769    Tag: blume-20040924-rounding
770    Description:
771    
772    Applied patch for setting rounding modes under Mac OS X.  Thanks to
773    Melissa O'Neill for providing the code!
774    
775    ----------------------------------------------------------------------
776    Name: Matthias Blume (blume (at) tti - c (dot) org)
777    Date: 2004/09/23 17:30:00 CDT
778    Tag: blume-20040923-envvars
779    Description:
780    
781    1. Changed definition of type ControlRegistry.registry_tree to
782       include control_info (i.e., the name of the controlling environment
783       variable).
784    
785    2. Added command-line flags -e and -E to print the names of environment
786       variables that can be used to control internal settings.
787       (This uses the new API mentioned in 1.)
788    
789    ----------------------------------------------------------------------
790    Name: Matthias Blume (blume (at) tti - c (dot) org)
791    Date: 2004/09/13 16:50:00 CDT
792    Tag: Release_110_49
793    Description:
794    
795    New working version (110.49).  NEW BOOTFILES!
796    
797    ----------------------------------------------------------------------
798    Name: Matthias Blume
799    Date: 2004/09/13 16:20:00 CDT
800    Tag: blume-20040913-config-mlrisc
801    Description:
802    
803    Put target "mlrisc" back into the default list.
804    (There is no harm in having it, and some users have expressed their
805    wish to have "mlrisc" included by default.)
806    
807    ----------------------------------------------------------------------
808    Name: John Reppy
809    Date: 2004/09/13
810    Tag: jhr-20040913-signals
811    Description:
812    
813    Fixed the signal masking code to properly nest mask/unmask operations
814    on a per-signal basis.
815    
816    ----------------------------------------------------------------------
817    Name: Matthias Blume (blume (at) tti - c (dot) org)
818    Date: 2004/09/08 13:20:00 CDT
819    Tag: blume-20040908-heap-magic
820    Description:
821    
822    Bumped the heap macig number to 0x09082004 to account for the changed
823    layout of the ML frame under MacOS X.
824    
825    ----------------------------------------------------------------------
826    Name: Allen Leung (leunga (at) reservoir (dot) com)
827    Date: 2004/09/03 11:26:00 EST
828    Tag: leunga-20040903-cygwin-install
829    Description:
830    
831       Added a patch to _arch-n-opsys to enable the Cygwin runtime.
832    The Cygwin runtime is turned on by setting the environment
833    variable SMLNJ_CYGWIN_RUNTIME to 1.
834    
835    ----------------------------------------------------------------------
836    Name: Matthias Blume (blume (at) tti - c (dot) org)
837    Date: 2004/08/31 17:15:00 CDT
838    Tag: blume-20040831-core
839    Description:
840    
841    Added some exports to src/compiler/core.cm upon request by J. Joemann.
842    
843    ----------------------------------------------------------------------
844    Name: Matthias Blume (blume (at) tti - c (dot) org)
845    Date: 2004/08/30 17:55:00 CDT
846    Tag: blume-20040830-installer
847    Description:
848    
849    Upon request by Johannes Joemann:
850    
851    - improved ML code of installer to fall back to coping when renaming
852      fails (i.e., when source and target are on different file systems);
853      the code compiles but has yet to be tested in anger
854    - removed mlrisc from list of default targets (config/targets)
855    
856    ----------------------------------------------------------------------
857    Name: Matthias Blume (blume (at) tti - c (dot) org)
858    Date: 2004/08/27 17:20:00 CDT
859    Tag: blume-20040827-ptreql
860    Description:
861    
862    Added ptreql primop to structure InlineT (upon request from Larry
863    Paulson).
864    
865    ----------------------------------------------------------------------
866    Name: Allen Leung (leunga (at) reservoir (dot) com)
867    Date: 2004/08/15 21:21:00 EST
868    Tag: leunga-110_48-udgraph
869    Description:
870    
871    Another bug fix from Carl Hauser:
872    
873    diff /net/niflab/smlnj48/src/MLRISC/graphs/udgraph.sml udgraph.sml
874    > 48c48
875    > <              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then es else
876    > e::L)
877    > ---
878    > >              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then L else e::L)
879    > Without this, any deletion of an edge in an undirected graph does severe
880    > violence to the graph.
881    
882    ----------------------------------------------------------------------
883    Name: Allen Leung (leunga (at) reservoir (dot) com)
884    Date: 2004/08/10 23:35:00 EST
885    Tag: leunga-110_48-ppc
886    Description:
887    
888       The IBM/MacOS syntax switch on PPC was incorrectly swapped.
889    
890    ----------------------------------------------------------------------
891    Name: Matthias Blume (blume (at) tti - c (dot) org)
892    Date: 2004/08/10 12:00:00 CDT
893    Tag: Release_110_48
894    Description:
895    
896    New working version (110.48).  NEW BOOTFILES!
897    
898    ----------------------------------------------------------------------
899    Name: Allen Leung (leunga (at) reservoir (dot) com)
900    Date: 2004/08/09 12:21:00 EST
901    Tag: leunga-110_47-dijsktra
902    Description:
903    
904    Bug fix from Carl Hauser:
905    
906    single_source_shortest_paths in dijkstra.sml was observed to get wrong
907    answers (by comparing to single_source_shortest_paths in bellman-ford.sml).
908    
909    The problem is that following the expression A.update(dist,s,Num.zero)
910    it is necessary to update the priority queue using Q.decreaseWeight(Q,s).
911    
912    ----------------------------------------------------------------------
913    Name: Matthias Blume (blume (at) tti - c (dot) org)
914    Date: 2004/08/06 18:10:00 CDT
915    Tag: blume-20040806-cmdline
916    Description:
917    
918    Fiddled with handling of command-line options:
919    
920      * sml now quits after processing the command line
921        if -H, -S, -h<n>, or -s<n> appears as the last
922        command-line argument
923      * a new option -q terminates the session when encountered on
924        the command line; subsequent arguments will be ignored
925      * bug fixes: short (erroneous) arguments are no longer ignored
926        completely
927    
928    ----------------------------------------------------------------------
929    Name: Allen Leung (leunga (at) reservoir (dot) com)
930    Date: 2004/08/04 18:17:00 EST
931    Tag: leunga-110_47-ppc-ibm-asm
932    Description:
933    
934      - Added minimal IBM assembly syntax support for PowerPC.
935    
936      - Cygwin: manually changed the file cygwin.def.  Some exported symbols have
937        been altered in the runtime.  We need an automatic way to keep the file
938        in sync.
939    
940    ----------------------------------------------------------------------
941    Name: Matthias Blume (blume (at) tti - c (dot) org)
942    Date: 2004/08/04 14:00:00 CDT
943    Tag: Release_110_47
944    Description:
945    
946    New working version (110.47).  NEW BOOTFILES!
947    
948    ----------------------------------------------------------------------
949    Name: Matthias Blume (blume (at) tti - c (dot) org)
950    Date: 2004/08/03 14:25:00 CDT
951    Tag: blume-20040803-callingconv
952    Description:
953    
954    Added low-level support for choosing C calling conventions by
955    twiddling the type of rawccall.  (See
956    src/compiler/Semant/types/cproto.sml for details.)
957    
958    ----------------------------------------------------------------------
959    Name: Matthias Blume (blume (at) tti - c (dot) org)
960    Date: 2004/08/02 15:55:00 CDT
961    Tag: blume-20040802-backout
962    Description:
963    
964    Backed out of change to win32-filesys.c.  The earlier patch to
965    get_file_time caused CM to produce files with the wrong time stamp.
966    
967    ----------------------------------------------------------------------
968    Name: Matthias Blume (blume (at) tti - c (dot) org)
969    Date: 2004/08/02 14:45:00 CDT
970    Tag: blume-20040802-nlffi-win32
971    Description:
972    
973    Added NLFFI support for Win32, adapted from a patch provided by David
974    Hansel.  This is currently completely untested.  Also, the issue
975    concerning stdcall vs. ccall is still unresolved.
976    
977    ----------------------------------------------------------------------
978    Name: Matthias Blume (blume (at) tti - c (dot) org)
979    Date: 2004/07/30 17:55:00 CDT
980    Tag: blume-20040730-various
981    Description:
982    
983    Gearing up towards 110.47...
984    
985    - various minor bugfixes to ml-nlffigen
986    - a beginning of a manual for nlffi
987    
988    - eliminated 'export name=value' in config/install.sh as this does
989      not work with certain versions of /bin/sh
990      (Thanks to David King at Motorola for catching this.)
991    
992    - several bugfixes provided or suggested by David Hansel at Reactive Systems:
993      - added a test for tm==NULL to gmtime.c and localtime.c
994      - applied patch for incorrect GetFileTime under win32
995      - toSeconds -> toMilliseconds in Win32/win32-process.sml
996    
997    ----------------------------------------------------------------------
998    Name: Matthias Blume (blume (at) tti - c (dot) org)
999    Date: 2004/07/21 18:20:00 CDT
1000    Tag: blume-20040721-nlffigen
1001    Description:
1002    
1003    - Fixed minor issue in ml-nlffigen: Now generate structure T_foo
1004      for a typedef to an incomplete type, but leave out the "typ" member.
1005      (This is just for consistency.)
1006    - Started to produce what is supposed to become better (i.e., comprehensive)
1007      documentation of what ml-nlffigen does and produces.
1008    
1009    ----------------------------------------------------------------------
1010    Name: Matthias Blume (blume (at) tti - c (dot) org)
1011    Date: 2004/07/14 16:25:00 CDT
1012    Tag: blume-20040714-union
1013    Description:
1014    
1015    Added C_UNION to c-calls/c-types.sml and updated the machinery
1016    (ml-nlffigen, cproto.sml) that conveys C function interface
1017    information to the code generator.
1018    
1019    However, the actual architecture-specific implementation of function
1020    arguments and results that are C unions is still not implemented.
1021    
1022    ----------------------------------------------------------------------
1023    Name: Allen Leung (leunga (at) reservoir (dot) com)
1024    Date: 2004/07/14 14:38:00 EST
1025    Tag: leunga-110_46_1-ppc-lwzu
1026    Description:
1027    
1028        Added these instructions to the PowerPC architecture:
1029        LBZU(X), LHZU(X), LWZU(X),
1030        STWU(X), STFDU, STFSU
1031    
1032        etc...
1033    
1034        Note: I haven't added their instruction encoding into the description.
1035    
1036    ----------------------------------------------------------------------
1037    Name: Allen Leung (leunga (at) reservoir (dot) com)
1038    Date: 2004/07/13 15:04:00 EST
1039    Tag: leunga-110_46_1-ppc-lwarx
1040    Description:
1041    
1042       Added the two instructions LWARX and STWCX to the PowerPC
1043    instruction set.
1044    
1045       A (untested) rewrite of loop-structure.sml.  The old version
1046    is completely broken.
1047    
1048    ----------------------------------------------------------------------
1049    Name: Matthias Blume (blume (at) tti - c (dot) org)
1050    Date: 2004/07/13 13:50:00 CDT
1051    Tag: blume-20040713-nlffi
1052    Description:
1053    
1054    - use paramAlloc to report c-calls with too many arguments
1055      (for PPC version where parameter area is pre-allocated)
1056    - added ccall_maxargspace to machspec (to implement the above)
1057    - made "make" commend in CM's "make" tool configurable
1058    - added option (default: on) for passing the name of the SML/NJ's "bin"
1059      directory to "make"; the call looks like this:
1060    
1061         make <options> SMLNJ_BINDIR=<dir> <target>
1062    
1063      This can be used by the Makefile to, e.g., pick the "right" version
1064      of ml-nlffigen.
1065    - minor code tweaks
1066    
1067    ----------------------------------------------------------------------
1068    Name: Matthias Blume (blume (at) tti - c (dot) org)
1069    Date: 2004/07/12 22:50:00 CDT
1070    Tag: blume-110_46_1-macosx-nlffi
1071    Description:
1072    
1073    NLFFI under Mac OS X now working (sort of).  This is largely untested,
1074    though.
1075    
1076    Note:  1. You have to make a new, clean build of the runtime system.
1077           2. There are new BOOTFILES, you have to use them!
1078              (Doing the bootstrap process yourself would be *very* painful!
1079               If you absolutely have to do it, build the system under
1080               a different architecture and then cross-compile.)
1081    
1082    Version bumped to 110.46.1 to account for runtime data format changes.
1083    
1084    ----------------------------------------------------------------------
1085    Name: Matthias Blume (blume (at) tti - c (dot) org)
1086    Date: 2004/06/18 14:30:00 CDT
1087    Tag: blume-20040618-unix
1088    Description:
1089    
1090    Changed the implementation of structure Unix so that the same stream
1091    is returned every time one of the {text,bin}{In,Out}streamOf functions
1092    is invoked on the same proc.  This is not what the spec currently
1093    says -- although IMO it arguably should.  (See discussion below.)
1094    
1095    ----------------------------------------------------------------------
1096    Name: Matthias Blume (blume (at) tti - c (dot) org)
1097    Date: 2004/06/17 18:15:00 CDT
1098    Tag: Release_110_46
1099    Description:
1100    
1101    New working version (110.46).  NEW BOOTFILES!
1102    
1103    ----------------------------------------------------------------------
1104    Name: Matthias Blume (blume (at) tti - c (dot) org)
1105    Date: 2004/06/17 17:20:00 CDT
1106    Tag: blume-20040617-timer-unix
1107    Description:
1108    
1109    Changed the interface of structures Timer and Unix to match the most
1110    recent Basis spec.
1111    
1112    In the case of Unix there still seems to be an open/weird issue:
1113    
1114       The {text,bin}{In,Out}streamOf functions are supposed to create
1115       fresh streams whenever they are called -- as opposed to have them
1116       return the same stream every time.  This design is supposed to
1117       prevent space leaks caused by proc values hanging on to streams.
1118    
1119       The reap function, on the other hand, is supposed to close the
1120       streams.  This cannot be done without having a handle on the
1121       stream in proc after all...
1122    
1123    I took the liberty to implement the following stopgap solution:
1124    
1125      The proc value hangs on to the most recently created stream(s).
1126      Reap closes those.  If either or both of the two streams hadn't
1127      been created at all yet, then reap will close the corresponding
1128      file descriptors directly.
1129    
1130    PS: I don't understand the original space leak argument anymore.  If
1131    a proc hangs on to the imperative stream, then I/O operations on those
1132    will advance the state of the cached stream and avoid the space leak.
1133    
1134    ----------------------------------------------------------------------
1135    Name: Matthias Blume (blume (at) tti - c (dot) org)
1136    Date: 2004/05/28 16:45:00 CDT
1137    Tag: blume-20040528-basis
1138    Description:
1139    
1140    Added signature PACK_REAL and exported functor PrimIO.
1141    
1142    ----------------------------------------------------------------------
1143    Name: Matthias Blume (blume (at) tti - c (dot) org)
1144    Date: 2004/05/25 16:00:00 CDT
1145    Tag: blume-20040525-group-owner
1146    Description:
1147    
1148    CM now ignores (but still accepts) the "owner" information in group
1149    descriptions.  The owner of a group is its next enclosing
1150    library. Each group must have a unique owner.  (There is a virtual
1151    "toplevel" library that owns groups which are not nested within a real
1152    library.)  Previously, each group had to explicitly declare its owner,
1153    and CM would check that such a declaration is correct.  The new scheme
1154    is to have CM check that for each group there is precisely one owning
1155    library.
1156    
1157    The advantage of the new scheme is that the programmer no longer needs
1158    to maintain the somewhat annoying owner information.  The downside is
1159    that CM cannot enforce the ownership rule across multiple runs of
1160    CM.make.  Fortunately, enclosing the same group in two different
1161    libraries A and B which are not part of the same program does not
1162    cause real problems.
1163    
1164    ----------------------------------------------------------------------
1165    Name: Matthias Blume (blume (at) tti - c (dot) org)
1166    Date: 2004/05/20 16:00:00 CDT
1167    Tag: blume-20040520-win32
1168    Description:
1169    
1170    Made the win32 version work again.  (Strangely, a misplaced comma had
1171    slipped into win32-process.c which prevented the runtime from being
1172    compiled correctly.)
1173    
1174    Also, included a minor addition to ml-build.bat analogous to what was
1175    done in blume-20040519-ml-build.
1176    
1177    ----------------------------------------------------------------------
1178    Name: Matthias Blume (blume (at) tti - c (dot) org)
1179    Date: 2004/05/19 22:10:00 CDT
1180    Tag: blume-20040519-ml-build
1181    Description:
1182    
1183    Arranged for ml-build to clean up after itself a little bit better.
1184    The script generates a temporary SML source file and compiles it using
1185    CM, so CM generates metadata (GUID, SKEL, objectfile) for it.  It now
1186    gets rid of those at the end, so they don't accumulate under .cm.
1187    
1188    This required a minor change to install.sh because the name of the
1189    metadata directory (default: .cm) is actually configurable at
1190    installation time.
1191    
1192    ----------------------------------------------------------------------
1193    Name: Matthias Blume (blume (at) tti - c (dot) org)
1194    Date: 2004/05/18 15:50:00 CDT
1195    Tag: blume-20040518-mkreader
1196    Description:
1197    
1198    Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
1199    implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
1200    
1201    ----------------------------------------------------------------------
1202    Name: Matthias Blume (blume (at) tti - c (dot) org)
1203    Date: 2004/05/11 14:35:00 CDT
1204    Tag: blume-20040511-win32sock
1205    Description:
1206    
1207    Added previously missing support for many socket-related functions
1208    under win32.  Thanks to David Hansel <hansel@reactive-systems.com>
1209    for the voluminous patch!
1210    
1211    (I have not tested this patch under win32 yet.)
1212    
1213    Here is David's e-mail:
1214    
1215    Hi,
1216    
1217    Attached to this email you find a diff against sml/nj 110.45
1218    that will enable socket support under Windows.
1219    
1220    To apply the patch (using unix or cygwin)
1221    1) gunzip runtime.diff.gz
1222    2) "cd" into "src/runtime" in the source tree of a fresh
1223       110.45 installation.
1224    3) patch -p 1 < [your/path/to]runtime.diff
1225    
1226    The code compiles fine but has NOT yet been extensively tested.
1227    I only ran a few tests for basic socket client functionality
1228    (which worked fine).  Especially the functions that use ioctl
1229    are not tested at all and might not work (see below).
1230    
1231    I implemented this since we want to move to a newer version of sml/nj
1232    but need socket support in order to use it.  This is the first time I
1233    even had a look at the sml/nj source,  so please review my changes
1234    before making this part of the distribution!  Here are a few issues
1235    that I think might be better for someone to solve who is more
1236    familiar with the sml/nj source (and socket programming):
1237    
1238    - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
1239      exception since I could not figure out what the windows equivalent
1240      of these functions is
1241    
1242    - In sockets-osdep.h there are a some #include statements that are
1243      only used in a few files that include sockets-osdep.h
1244    
1245    - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
1246      does not process its return value since I don't know how to
1247      report an error upwards.
1248    
1249    - It would probably be good to have a call to WSACleanup() when
1250      the library is unloaded (if there is such a possibility).
1251      Otherwise I think Windows will take care of this automatically
1252      when the process finishes.
1253    
1254    - I used ioctlsocket() as a replacement for ioctl() but I have
1255      no idea if that is actually the proper replacement on Windows.
1256    
1257    - All these issues are marked in the code by "FIXME" comments.
1258    
1259    We use sml/nj extensively in our products and are quite happy
1260    with it.  I hope this contribution will help you.
1261    
1262    Keep up the good work!
1263    
1264    David
1265    
1266    ----------------------------------------------------------------------
1267    Name: Matthias Blume (blume (at) tti - c (dot) org)
1268    Date: 2004/05/11 14:20:00 CDT
1269    Tag: blume-20040511-installml
1270    Description:
1271    
1272    Fixed two bugs in installml script.  (Thanks to Vesa A. Norrman for
1273    the patch.)
1274    
1275    ----------------------------------------------------------------------
1276    Name: Matthias Blume (blume (at) tti - c (dot) org)
1277    Date: 2004/05/11 14:05:00 CDT
1278    Tag: blume-20040511-nlffi-netbsd
1279    Description:
1280    
1281    Added support for nlffi under netbsd.  (Thanks to Vesa A. Norrman for
1282    the patch.)
1283    
1284    ----------------------------------------------------------------------
1285    Name: Matthias Blume (blume (at) tti - c (dot) org)
1286    Date: 2004/05/11 12:05:00 CDT
1287    Tag: blume-20040511-exports
1288    Description:
1289    
1290    As per request by Adam Chlipala <adam@hcoop.net>, extended various
1291    export lists in compiler-related .cm-files.
1292    
1293    ----------------------------------------------------------------------
1294    Name: Matthias Blume (blume (at) tti - c (dot) org)
1295    Date: 2004/05/11 11:35:00 CDT
1296    Tag: blume-20040511-allsource
1297    Description:
1298    
1299    The installer now honors the "src-smlnj" target again, although its meaning
1300    has changed from "all sources required for the compiler" to "all sources
1301    the installer knows about".  In other words, if you enable "src-smlnj"
1302    in the "targets" file, then the installer will pull in sources for
1303    everything.  (Notice that this refers to source code only.  Compiled
1304    code is still only installed for modules that were requested explicitly
1305    or which are required for other modules that were requested explicitly.)
1306    
1307    ----------------------------------------------------------------------
1308    Name: Matthias Blume (blume (at) tti - c (dot) org)
1309    Date: 2004/04/23 17:40:00 CDT
1310    Tag: blume-20040423-ieee-scan
1311    Description:
1312    
1313    Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
1314    in the exponent calculation we get INF or ZERO (depending on the mantissa
1315    and the sign of the exponent).
1316    
1317    ----------------------------------------------------------------------
1318    Name: Matthias Blume (blume (at) tti - c (dot) org)
1319    Date: 2004/04/23 10:40:00 CDT
1320    Tag: blume-20040423-ml-build
1321    Description:
1322    
1323    The ml-build script now terminates with a non-0 status when something
1324    goes wrong.
1325    
1326    ----------------------------------------------------------------------
1327    Name: Matthias Blume (blume (at) tti - c (dot) org)
1328    Date: 2004/04/22 16:35:00 CDT
1329    Tag: blume-20040422-Option
1330    Description:
1331    
1332    Made exception Option to be the same as exception Option.Option
1333    (as it should be).
1334    
1335    ----------------------------------------------------------------------
1336    Name: Allen Leung (leunga (at) reservoir (dot) com)
1337    Date: 2004/03/19 14:40:00 EST
1338    Tag: leunga-20040319-cygwin-nlffi
1339    Description:
1340    
1341    Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
1342    of SML/NJ.  The problem is that
1343    
1344       lib = dlopen(NULL, ...)
1345       f   = dlsym(lib, "malloc");
1346    
1347    does not work on Windows unless we explicitly export symbols
1348    such as 'malloc' during linking.  We fixed this by explicitly
1349    exporting the required symbols with the magic gcc incantation:
1350    
1351        -Wl,--export-all cygwin.def
1352    
1353    where cygwin.def is a file containing all the symbols that
1354    we wish to export.
1355    
1356    I suspect this is a Windows problem and we'll have to
1357    do the same (somehow with windows compilers) when
1358    we build the native win32 version with the system
1359    calls LoadLibrary/GetProcAddress.
1360    
1361    ----------------------------------------------------------------------
1362    Name: Matthias Blume (blume (at) tti - c (dot) org)
1363    Date: 2004/03/04 16:35:00 CST
1364    Tag: blume-20040304-intinf-fmt
1365    Description:
1366    
1367    Fixed problem with IntInf.fmt (sign would show up on the right instead
1368    of on the left for BIN, OCT, and HEX).
1369    
1370    ----------------------------------------------------------------------
1371    Name: Matthias Blume (blume (at) tti - c (dot) org)
1372    Date: 2004/03/04 11:25:00 CST
1373    Tag: blume-20040304-symlinks
1374    Description:
1375    
1376    Fixed problem with installer script (unix only) where bin/ml-yacc and
1377    friends pointed (via symlinks) to absolute locations instead of just
1378    .run-sml.  This was reported by Vesa A Norrman.
1379    
1380    ----------------------------------------------------------------------
1381    Name: Matthias Blume (blume (at) tti - c (dot) org)
1382    Date: 2004/02/13 14:50:00 CST
1383    Tag: Release_110_45
1384    Description:
1385    
1386    New working version (110.45). New bootfiles.
1387    
1388    ----------------------------------------------------------------------
1389    Name: Matthias Blume (blume (at) tti - c (dot) org)
1390    Date: 2004/01/26 15:15:15 CST
1391    Tag: blume-20040126-toplevel
1392    Description:
1393    
1394    Improved handling of exceptions at the interactive toplevel.
1395    
1396    ----------------------------------------------------------------------
1397    Name: Matthias Blume (blume (at) tti - c (dot) org)
1398    Date: 2004/01/26 11:25:00
1399    Tag: blume-20040126-app
1400    Description:
1401    
1402    Type of top-level "app" corrected.
1403    Added code for setting vp_limitPtrMask to Win32-specific runtime.
1404    
1405    ----------------------------------------------------------------------
1406    Name: Matthias Blume (blume (at) tti - c (dot) org)
1407    Date: 2003/11/18 17:10 CST
1408    Tag: blume-20031118-basis-fiddle
1409    Description:
1410    
1411    - changed Timer interface to what might become the spec
1412    - POSIX_FLAGS -> BIT_FLAGS according to spec
1413    - some other minor discrepancies wrt. spec eliminated
1414    
1415    ----------------------------------------------------------------------
1416    Name: Matthias Blume (blume (at) tti - c (dot) org)
1417    Date: 2003/11/06 12:00:00 CST
1418    Tag: Release_110_44
1419    Description:
1420    
1421    New working version (110.44). New bootfiles.
1422    
1423    ----------------------------------------------------------------------
1424    Name: Matthias Blume (blume (at) tti - c (dot) org)
1425    Date: 2003/11/04 11:50:00 CST
1426    Tag: blume-20031104-move-libraries
1427    Description:
1428    
1429    Eliminated the "dont_move_libraries" directive in config/targets.
1430    (The mechanism was broken and could not be fixed easily.  Moreover,
1431    there does not seem to be any reason not to move all libraries into
1432    lib during installation.  I originally implemented this directive as a
1433    backward-compatibility feature when I first introduced the new CM.
1434    Now that things have been stable for a long time and going back to the
1435    old CM is not an option, there is no reason to keep it around.)
1436    
1437    ----------------------------------------------------------------------
1438    Name: Matthias Blume (blume (at) tti - c (dot) org)
1439    Date: 2003/11/03 16:00:00 CST
1440    Tag: blume-20031103-installdir
1441    Description:
1442    
1443    Made installer honor INSTALLDIR variable again.  (Thanks to Chris
1444    Richards for pointing out the problem and providing the solution.)
1445    
1446    ----------------------------------------------------------------------
1447    Name: Matthias Blume (blume (at) tti - c (dot) org)
1448    Date: 2003/10/01 17:05:00 CDT
1449    Tag: blume-20031001-lal-mlrisc
1450    Description:
1451    
1452    MLRISC bug fix from Lal.
1453    
1454    ----------------------------------------------------------------------
1455    Name: Matthias Blume (blume (at) tti - c (dot) org)
1456    Date: 2003/09/30 16:10:00 CDT
1457    Tag: blume-20030930-primio-bat
1458    Description:
1459    
1460    1. Added openVector, nullRd, and nullWr to PRIM_IO.
1461    2. Improved .bat files (for Win32 port) to make things work under Win95.
1462       (thanks to Aaron S. Hawley for this one)
1463    
1464    ----------------------------------------------------------------------
1465    Name: Matthias Blume (blume (at) tti - c (dot) org)
1466    Date: 2003/09/26 16:05:00 CDT
1467    Tag: blume-20030926-wrappriv
1468    Description:
1469    
1470    Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
1471    
1472    ----------------------------------------------------------------------
1473    Name: Matthias Blume (blume (at) tti - c (dot) org)
1474    Date: 2003/09/26 15:00:00 CDT
1475    Tag: blume-20030926-110_43_3
1476    Description:
1477    
1478    - additional cleanup
1479    - version number bump, NEW BOOTFILES
1480    
1481    ----------------------------------------------------------------------
1482    Name: Matthias Blume (blume (at) tti - c (dot) org)
1483    Date: 2003/09/26 12:00:00 CDT
1484    Tag: blume-20030926-ppautoload
1485    Description:
1486    
1487    I modified the read-eval-print loop so that the autoloader gets
1488    invoked whenever the prettyprinter tries to look up a symbol that
1489    is not currently defined in the toplevel environment but which
1490    appears in CM's autoload registry.  As a result, we see far fewer of
1491    those ?.Foo.Bar.xxx names in the prettyprinter's output.
1492    
1493    In addition to this I tried to clean up some pieces of the Basis
1494    implementation (e.g., Socket, Word8Array) in order to prevent other
1495    instances of these ?.Foo.Bar.xxx names from being printed.
1496    
1497    The mechanism that picks names for types still needs some work, though.
1498    (Right now it seems that if there is a type A.t which is defined to
1499    be B.u, but B is unavailable at toplevel, then A.t gets printed as
1500    "?.B.u" although the perhaps more sensible solution would be to use
1501    "A.t" in this case.  In other words, the prettyprinter should follow
1502    a chain of DEFtycs not farther than there are corresponding toplevel
1503    names in the current environment.)
1504    
1505    ----------------------------------------------------------------------
1506    Name: Matthias Blume (blume (at) tti - c (dot) org)
1507    Date: 2003/09/24 16:31:00 CDT
1508    Tag: blume-20030924-installer
1509    Description:
1510    
1511    Another installer tweak:  All the ML code for the installer is now
1512    compiled during CMB.make and put into a little library called
1513    $smlnj/installer.cm.  The installation then simply invokes
1514    
1515       sml -m $smlnj/installer.cm
1516    
1517    and everything happens automagically.
1518    
1519    Win32:  ML code senses value of environment variable SMLNJ_HOME.
1520    Unix:   ML code senses values of environment variables ROOT, CONFIGDIR,
1521            and BINDIR.
1522    
1523    The new scheme guarantees that the ML code responsible for the installation
1524    is in sync with the APIs of the main system.  Also, the installer is
1525    somewhat faster because the installer script is precompiled.
1526    
1527    ----------------------------------------------------------------------
1528    Name: Matthias Blume (blume (at) tti - c (dot) org)
1529    Date: 2003/09/24 15:35:00 CDT
1530    Tag: blume-20030924-synsock
1531    Description:
1532    
1533    Added a signature SYNCHRONOUS_SOCKET to basis.cm.  This is like SOCKET
1534    but excludes all non-blocking operations.  Defined SOCKET (in Basis)
1535    and CML_SOCKET in terms of SYNCHRONOUS_SOCKET.  Removed superfluous
1536    implementations of non-blocking operations from CML's Socket
1537    structure.
1538    
1539    ----------------------------------------------------------------------
1540    Name: Matthias Blume (blume (at) tti - c (dot) org)
1541    Date: 2003/09/24 15:10:05 CDT
1542    Tag: blume-20030924-sockets
1543    Description:
1544    
1545    1. Fixed SOCKET API and implementation to match Basis spec.
1546       This required changing the internal representation of sockets to one
1547       that remembers (for each socket file descriptor) whether it is currently
1548       blocking or non-blocking.  This state is maintained lazily (i.e., a system
1549       call is made only if the state actually needs to change).
1550    
1551    2. OS-specific details of sockets were moved into separate files, thus
1552       making it possible to unify the bulk of the socket implementations
1553       between Unix and Win32.
1554    
1555    3. CML's socket API changed accordingly.
1556       (Note that we need to remove non-blocking functions from this API
1557       since they are redundant in the case of CML!)
1558    
1559    4. CML's socket implementation now makes use of non-blocking functions
1560       provided by Basis, thus removing all OS-dependent code from this part
1561       of CML.
1562    
1563    5. Changed Real64.precision from 52 to 53.  Minor cleanup in Real64 code.
1564    
1565    ----------------------------------------------------------------------
1566    Name: Matthias Blume (blume (at) tti - c (dot) org)
1567    Date: 2003/09/22 12:10:00 CDT
1568    Tag: blume-20030922-110_43_2
1569    Description:
1570    
1571    Made a new interim version and bootfiles for developer's bootstrapping
1572    convenience.
1573    
1574       110.43.2 -- NEW BOOTFILES
1575    
1576    ----------------------------------------------------------------------
1577    Name: Matthias Blume (blume (at) tti - c (dot) org)
1578    Date: 2003/09/19 15:55:00 CDT
1579    Tag: blume-20030919-cmdir
1580    Description:
1581    
1582    1. new-install.sh -> install.sh
1583    2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
1584    3. tweaked installer so that another name instead of .cm can be chosen
1585       at install time (by setting the CM_DIR_ARC environment variable
1586       during installation); once installation is complete, the name is
1587       fixed
1588    
1589    ----------------------------------------------------------------------
1590    Name: Matthias Blume (blume (at) tti - c (dot) org)
1591    Date: 2003/09/18 16:00:00 CDT
1592    Tag: blume-20030918-110_43_1
1593    Description:
1594    
1595    Made a new interim version and bootfiles for developer's bootstrapping
1596    convenience.
1597    
1598       110.43.1 -- NEW BOOTFILES
1599    
1600    ----------------------------------------------------------------------
1601    Name: Matthias Blume (blume (at) tti - c (dot) org)
1602    Date: 2003/09/18 15:20:00 CDT
1603    Tag: blume-20030918-misc
1604    Description:
1605    
1606    1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
1607       this seems to be controversial at the moment) and used those in
1608       Posix.ProcEnv.times.
1609    
1610    2. Added Time.{from,to}Nanoseconds to Time.
1611    
1612    3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
1613       For example, fromLargeInt never needs to look at more than 3 "big
1614       digits" to get its 53 bits of precision.
1615    
1616    ----------------------------------------------------------------------
1617    Name: Matthias Blume (blume (at) tti - c (dot) org)
1618    Date: 2003/09/17 16:30:00 CDT
1619    Tag: blume-20030917-real32-slices
1620    Description:
1621    
1622    Added an entry to the primitive environment
1623    (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
1624    added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
1625    
1626    Removed some of the "magic" constants in real64.sml and replaced them
1627    with code that generates these values from their corresponding
1628    integer counterparts.
1629    
1630    Made all(?) the slice-related changes to the Basis and made everything
1631    compile again...
1632    
1633    ----------------------------------------------------------------------
1634    Name: Matthias Blume (blume (at) tti - c (dot) org)
1635    Date: 2003/09/15 17:45:00 CDT
1636    Tag: blume-20030915-rbase
1637    Description:
1638    
1639    Fixed bug in Real.fromLargeInt.
1640    
1641    ----------------------------------------------------------------------
1642    Name: Matthias Blume (blume (at) tti - c (dot) org)
1643    Date: 2003/09/13 18:11:00 CDT
1644    Tag: blume-20030913-libinstall
1645    Description:
1646    
1647    Minor bugfix in config/libinstall (set anchor with path to
1648    standalone tool after installing it, otherwise libraries that
1649    need ml-lex or ml-yacc won't compile the first time the installer
1650    runs).
1651    
1652    ----------------------------------------------------------------------
1653    Name: Matthias Blume (blume (at) tti - c (dot) org)
1654    Date: 2003/09/12 11:45:00 CDT
1655    Tag: blume-20030912-various
1656    Description:
1657    
1658     - fixed bug in Real.toLargeInt
1659     - fixed bug in Posix.ProcEnv.times
1660     - changed inputLine functions to return an option
1661     - minor installer improvements / bugfixes
1662     - changed default @SMLalloc parameter for x86/celeron to 64k
1663    
1664    ----------------------------------------------------------------------
1665    Name: Matthias Blume (blume (at) tti - c (dot) org)
1666    Date: 2003/09/09 22:00:00 CDT
1667    Tag: Release_110_43
1668    Description:
1669    
1670        New working release 110.43.  New bootfiles.
1671    
1672    ----------------------------------------------------------------------
1673    Name: Matthias Blume (blume (at) tti - c (dot) org)
1674    Date: 2003/09/09 19:20:00 CDT
1675    Tag: blume-20030909-installer
1676    Description:
1677    
1678    Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
1679    Modified config/install.bat to take advantage of it.  Also modified
1680    config/install.sh (and called it config/new-install.sh) to take advantage
1681    of it on Unix systems.  (The SML code is (supposed to be) platform-
1682    independent.)
1683    
1684    The installer can now install everything under Win32
1685    as well as under *nix as long as it compiles.
1686    
1687    Other changes:
1688    
1689      - made CML compile again under Win32
1690      - made eXene compile under Win32 (by providing a fake structure UnixSock
1691        and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
1692      - fixed a bug in nowhere: it assumed that type OS.Process.status is the
1693        same as type int;  under Win32 it isn't
1694      - fixed some slice-related problems in the win32-specific parts of CML
1695      - added a functor argument "sameVol" to os-path-fn.sml in the Basis
1696        (under Win32, the volume name is case-insensitive, and the
1697        OS.Path code compares volume names for equality)
1698    
1699    ----------------------------------------------------------------------
1700    Name: Matthias Blume (blume (at) tti - c (dot) org)
1701    Date: 2003/09/08 11:55:00 CDT
1702    Tag: blume-20030908-fullpath
1703    Description:
1704    
1705    Made Win32 version of OS.FileSys.fullPath return current directory
1706    when given an empty string.  This is what the spec says, and incidentally,
1707    CM depends on it.  (CM otherwise goes into an infinite loop in certain
1708    cases when presented with the name of a non-existing .cm file.)
1709    
1710    ----------------------------------------------------------------------
1711    Name: Matthias Blume (blume (at) tti - c (dot) org)
1712    Date: 2003/09/04 16:30:00 CDT
1713    Tag: blume-20030905-slices-etc
1714    Description:
1715    
1716      1. Changed interface to vectors and arrays in Basis to match
1717         (draft) Basis spec.
1718      2. Added signatures and implementations of slices according to
1719         Basis spec.
1720      3. Edited source code throughout the system to make it compile again
1721         under 1. and 2.  (In some cases code had to be added to have it
1722         match the new signatures.)
1723      4. MLRISC should be backward-compatible: the copies of the originals
1724         of files that needed to change under 3. were retained, the .cm files
1725         check the compiler version number and use old versions when
1726         appropriate.
1727      5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
1728         dirstream -> string option (in accordance with Basis spec).
1729      6. When generating code that counts lines, ml-lex used function
1730         CharVector.foldli, taking advantage of its old interface.
1731         This has been replaced with the corresponding code from
1732         CharVectorSlice.  (html-lex must be re-lexed!)
1733      7. BitArray in smlnj-lib/Util has been extended/modified to match the
1734         new MONO_ARRAY signature.  (Do we need BitArraySlice?)
1735      8. Removed temporary additions (fromInternal, toInternal) from the
1736         (now obsolete) IntInf in smlnj-lib/Util.
1737      9. Cleaned up structure Byte.
1738     10. Added localOffset, scan, and fromString to Date (according to spec).
1739         Cleaned/corrected implementation of Date.
1740         (Still need to check for correctness; implement better canonicalizeDate.)
1741     11. Added "scan" to signature IEEE_REAL.
1742     12. Some improvements to IntInf [in particular: efficiency-hack for
1743         mod and rem when second operand is 2 (for parity checks).]
1744     13. Changed representation of type Time.time, using a single IntInf.int
1745         value counting microseconds.  This considerably simplified the
1746         implementation of structure Time.  We now support negative time
1747         values; scan and fromString handle signs.
1748     14. Functor PrimIO now takes two additional arguments (VectorSlice and
1749         ArraySlice).
1750    
1751    ----------------------------------------------------------------------
1752    Name: Matthias Blume (blume (at) tti - c (dot) org)
1753    Date: 2003/08/28 17:00:00 CDT
1754    Tag: blume-20030828-intinf
1755    Description:
1756    
1757    This is a major update which comes with a version number bump
1758    (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
1759    and an implementation of IntInf in the Basis.
1760    
1761    There are a fairly large number of related changes and updates throughout
1762    the system:
1763    
1764    Basis:
1765            - Implemented IntInf.
1766            - Made LargeInt a projection of IntInf (by filtering through INTEGER).
1767            - Added some missing Real64 operations, most notably Real.toLargeInt.
1768            - Added FixedInt as a synonym for Int32.
1769    
1770    compiler:
1771            * Added support for a built-in intinf type.
1772              - literals
1773              - pattern matching
1774              - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
1775              - overloading on literals and operations
1776    
1777            This required adding a primitive type intinf, some additional
1778            primops, and implementations for several non-trivial intinf
1779            operations in Core.  (The intinf type is completely abstract
1780            to the compiler; all operations get delegated back to the Core.)
1781    
1782            * Intinf equality is handled by polyequal.  However, the compiler
1783            does not print its usual warning in this case (since polyequal
1784            is the right thing to do there).
1785    
1786            * Improved the organization of structure InlineT.
1787    
1788            * A word about conversion primops:
1789            If conversions involving intinf do not cancel out during
1790            CPS contract, then the compiler must insert calls to Core functions.
1791            Since all core access must be resolved already during the FLINT
1792            translate phase, it would be too late a the time of CPS contract
1793            to add new Core calls.  For this reason, conversion primops
1794            for intinf carry two arguments:  1. the numeric argument that
1795            they are supposed to convert, and 2. the Core function that
1796            can help with this conversion if necessary.  If CPS contract
1797            eliminates a primop, then the associated Core function becomes
1798            dead and goes away.  Intinf conversion primops that do not get
1799            eliminated by CPS contract get rewritten into calls of their
1800            core functions by a separate, new phase.
1801    
1802    interactive system:
1803            - Control.Print.intinfDepth controls max length of intinf constants
1804            being printed. (Analogous to Control.Print.stringDepth.)
1805            - Cleanup in printutil and pputil: got rid of unused stuff and
1806            duplicates; replaced some of the code with code that makes better
1807            use of library functionality.
1808    
1809    CM:
1810            Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
1811            are no longer silent.
1812    
1813    CKIT:
1814            Fixed mismatched uses of Int32 and LargeInt.  I always decided
1815            in favor of LargeInt -- which is now the same as IntInf.
1816            CKIT-knowledgable people should check whether this is what's
1817            intended and otherwise change things back to using Int32 or
1818            FixedInt.
1819    
1820    Throughout the code:
1821            Started using IntInf.int literals and built-in operations
1822            (e.g., comparison with 0) where this seems appropriate.
1823    
1824    
1825    ----------------------------------------------------------------------
1826    Name: Dave MacQueen (dbm@cs.uchicago.edu)
1827    Date: 2003/08/13 11:36:00 CDT
1828    Tag: dbm-20030813-mcz-merge1
1829    Description:
1830    
1831    Merging changes from the mcz-branch development branch into trunk.
1832    These changes involve replacement of the emulated old prettyprinter
1833    interface with direct use of the SML/NJ Lib PP library, and fixing
1834    of a couple of bugs (895, 1186) relating to error messages.  A new
1835    prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
1836    has been added.
1837    
1838    ----------------------------------------------------------------------
1839    Name: Matthias Blume (blume (at) tti - c (dot) org)
1840    Date: 2003/08/11 15:45:00 CDT
1841    Tag: blume-20030811-windows
1842    Description:
1843    
1844    Version number bumped to 110.42.9.  NEW BOOTFILES!!!
1845    
1846        http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
1847    
1848    This patch restores SML/NJ's ability to run under win32.  There are a
1849    number of changes, including fixes for several bugs that had gone
1850    unnoticed until now:
1851    
1852      - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
1853        trying to run the win32 version from within cygwin.)
1854    
1855      - There are a number of simple .bat scripts that substitute for their
1856        corresponding Unix shell-scripts.  (See below.)
1857    
1858      - The internals of ml-build have been modified slightly.  The main
1859        difference is that instead of calling ".link-sml" (or link-sml.bat)
1860        using OS.Process.system, the ML process delegates this task back
1861        to the script.  Otherwise problems arise in mixed environments such
1862        as Cygwin where scripts look and work like Unix scripts, but
1863        where OS.Process.system cannot run them.
1864    
1865      - In CM, the srcpath pickler used native pathname syntax -- which
1866        is incorrect in the case of cross-compilation.  The new pickle format
1867        is independent of platform-specific naming conventions.
1868    
1869      - Path configuration files (such as lib/pathconfig) can now choose
1870        between native and standard syntax.  Placing a line of the form
1871    
1872            standard!
1873    
1874        into the file causes all subsequent paths to be interpreted using
1875        CM standard pathname syntax (= Unix conventions); a line
1876    
1877            native!
1878    
1879        switches back to native style.  This was needed so that
1880        path config files can be written portably, see src/system/pathconfig.
1881    
1882      - Runtime system:
1883    
1884          - win32-filesys.c:  get_file_time and set_file_time now
1885            access modification time, not creation time.
1886    
1887          - I/O code made aware of new array representation.
1888    
1889          - Bug fixes in X86.prim.masm.
1890    
1891       - src/system/makeml made aware of win32. (For use under cygwin
1892            and other Unix-environments for windows.)
1893    
1894       - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
1895         which caused BinIO.inputAll to fail consistently.
1896    
1897    .bat scripts:
1898    
1899       Windows .bat scripts assume that SMLNJ_HOME is defined.
1900    
1901       - sml.bat, ml-yacc.bat, ml-lex.bat:  Driver scripts for standalone
1902         applications (sml, ml-yacc, ml-lex).
1903       - ml-build.bat: analogous to ml-build.
1904       - config\install.bat:  Analogous to config/install.sh.  This requires
1905         that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
1906         (nmake etc. must be on the path, and vcvars32 must have been run.)
1907         Moreover, sources for ml-lex and ml-yacc need to exist under src,
1908         and the bootfile hierarchy must have been unpacked under
1909         sml.boot.x86-win32.
1910         The script is very primitive and does a poor job at error checking.
1911         It only installs the base system, ml-lex, and ml-yacc.  No other
1912         libraries are being installed (i.e., you get only those that
1913         are part of the compiler.)
1914       - link-sml.bat:  analogous to .link-sml, but not currently used
1915    
1916    Unrelated bug fixes:
1917    
1918      - ml-nlffigen now exports structures ST_* corresponding to incomplete
1919        types.
1920      - Added getDevice to PP/src/pp-debug-fn.sml.  (Would not compile
1921        otherwise.)
1922    
1923    ----------------------------------------------------------------------
1924    Name: Dave MacQueen (macqueen@cs.uchicago.edu)
1925    Date: 2003/06/17
1926    Tag: macqueen-20030617-bug895
1927    Description:
1928    
1929    Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
1930    Tag will be used for new development branch (mcz-branch) for
1931    use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
1932    
1933    ----------------------------------------------------------------------
1934    Name: Matthias Blume (blume (at) tti - c (dot) org)
1935    Date: 2003/05/27 16:55:00 CDT
1936    Tag: blume-20030527-polyeq
1937    Description:
1938    
1939    Tried to eliminated most cases of polymorphic equality.
1940    
1941    ----------------------------------------------------------------------
1942    Name: Matthias Blume (blume (at) tti - c (dot) org)
1943    Date: 2003/05/21 17:45:00 CDT
1944    Tag: blume-20030517-complete
1945    Description:
1946    
1947    Two changes:
1948    
1949      1. Added a flag for controlling whether non-exhaustive bindings will
1950         be treated as errors (default is false).
1951      2. Cleaned up the *entire* source tree so that CMB.make goes through
1952         without a single non-exhaustive match- or bind warning.
1953    
1954    ----------------------------------------------------------------------
1955    Name: Matthias Blume (blume (at) tti - c (dot) org)
1956    Date: 2003/05/17 10:20:00 CDT
1957    Tag: blume-20030517-absyn
1958    Description:
1959    
1960    1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
1961    
1962       This mainly affects the quality of error messages.  However, some
1963       of the code is now more straightforward than before. (Treatment of
1964       the above four constructs in translate.sml is much simpler than
1965       the "macro-expansion" that was going on before.  Plus, the mach-
1966       compiler no longer gets invoked just to be able to compile an
1967       if-expression.)
1968    
1969    2. The ErrorMsg.Error exception is now caught and absorbed by the
1970       interactive loop.
1971    
1972    ----------------------------------------------------------------------
1973    Name: Allen Leung
1974    Date: 2003/05/16 13:05:00 CDT
1975    Tag: leunga-20030516-cygwin-runtime
1976    Description:
1977    
1978        Ported the runtime system to cygwin, which uses the unix
1979    x86-unix bin files.  Missing/buggy features:
1980    
1981       o getnetbyname, getnetbyaddr: these functions seem to be missing in
1982         the Cygwin library.
1983       o Ctrl-C handling may be flaky.
1984       o Windows system calls and Windows I/O are not supported.
1985    
1986       A new set of binfiles is located at:
1987    
1988         http://www.dorsai.org/~leunga/boot.x86-unix.tgz
1989    
1990       This is only needed for bootstrapping the cygwin version of smlnj.
1991       Other x86 versions can use the existing binfiles.
1992    
1993    ----------------------------------------------------------------------
1994    Name: Matthias Blume
1995    Date: 2003/04/08 15:42:00 CDT
1996    Tag: blume-20030408-listpair
1997    Description:
1998    
1999    1. Added a target 'mlrisc' to installer.
2000    
2001    2. Added missing elements to structure ListPair.
2002    
2003    ----------------------------------------------------------------------
2004    Name: Allen Leung
2005    Date: 2003/01/07 10:40:00 EST
2006    Tag: leunga-20030107-int-rem
2007    Description:
2008    
2009    Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
2010    The arguments to the SUBL instruction were swapped.
2011    
2012    ----------------------------------------------------------------------
2013    Name: Matthias Blume
2014    Date: 2002/12/12 16:25:00 EST
2015    Tag: blume-20021212-risc-ra
2016    Description:
2017    
2018    Fixed a serious bug in the rewrite code for FP spilling/reloading that
2019    sent the RA into an infinite loop when floating point registers get
2020    spilled.  (Because of this bug, e.g., nucleic stopped compiling between
2021    110.37 and 110.38.)
2022    There was another set of potential problems related to the handling of
2023    MLRISC annotations (but those did not yet cause real problems, apparently).
2024    
2025    ----------------------------------------------------------------------
2026    Name: Matthias Blume
2027    Date: 2002/12/06 22:40:00 EST
2028    Tag: blume-20021206-cm-fileid
2029    Description:
2030    
2031    Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
2032    This fixes the problem of CM getting confused by files that suddenly
2033    change their identity (e.g., by getting unlinked and recreated by some
2034    text editor such as vi).  There might be a better/cheaper/cleaner way
2035    of doing this, but for now this will have to do.
2036    
2037    ----------------------------------------------------------------------
2038    Name: Matthias Blume
2039    Date: 2002/10/28 09:50:00 EST
2040    Tag: blume-20021028-typecheck
2041    Description:
2042    
2043    Exported structure Typecheck from $smlnj/viscomp/core.cm.
2044    
2045    ----------------------------------------------------------------------
2046    Name: Matthias Blume
2047    Date: 2002/10/17 09:10:00 EDT
2048    Tag: Release_110_42
2049    Description:
2050    
2051    In good old tradition, there has been a slight hiccup so that we have
2052    to patch 110.42 after the fact.   The old release tag has been replaced
2053    (see below).
2054    
2055    The change solves a problem with two competing approaches the
2056    configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
2057    each other's way.
2058    
2059    This change only affects the runtime system code and the installer script.
2060    (No new bootfiles.)
2061    
2062    ----------------------------------------------------------------------
2063    Name: Matthias Blume
2064    Date: 2002/10/16 12:00:00 EDT
2065    Tag: Release_110_42_removed
2066    Description:
2067    
2068    New working release.  New bootfiles.
2069    
2070    ----------------------------------------------------------------------
2071    Name: Matthias Blume
2072    Date: 2002/10/10 13:10:00 EDT
2073    Tag: blume-20021010-ppc-divs
2074    Description:
2075    
2076    The mltree operator DIVS must be implemented with an overflow check on
2077    the PPC because the hardware indicates divide-by-zero using "overflow" as
2078    well.
2079    
2080    ----------------------------------------------------------------------
2081    Name: Matthias Blume
2082    Date: 2002/07/23 11:45:00
2083    Tag: blume-20020723-smlnj-home
2084    Description:
2085    
2086    Sml now senses the SMLNJ_HOME environment variable.  If this is set,
2087    then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
2088    CM_PATHCONFIG is also set), the path configuration file is assumed
2089    to be in $SMLNJ_HOME/lib/pathconfig.  This way one can easily move
2090    the entire tree to some other place and everything will "just work".
2091    
2092    (Companion commands such as ml-build and ml-makedepend also sense this
2093    variable.)
2094    
2095    ----------------------------------------------------------------------
2096    Name: Matthias Blume
2097    Date: 2002/07/12 21:19:00 EDT
2098    Tag: blume-20020712-liveness
2099    Description:
2100    
2101    Exported two useful "step" functions from liveness module (MLRISC).
2102    
2103    ----------------------------------------------------------------------
2104    Name: Matthias Blume
2105    Date: 2002/07/05 16:00 EDT
2106    Tag: Release_110_41
2107    Description:
2108    
2109    New working release.  New bootfiles.
2110    
2111    ----------------------------------------------------------------------
2112    Name: Matthias Blume
2113    Date: 2002/07/05 10:25:00 EDT
2114    Tag: blume-20020705-btimp
2115    Description:
2116    
2117    Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
2118    other clients can set up backtracing support.
2119    
2120    ----------------------------------------------------------------------
2121    Name: Matthias Blume
2122    Date: 2002/06/25 17:23:00 EDT
2123    Tag: blume-20020625-fpmax
2124    Description:
2125    
2126    Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
2127    case.  (The sense of the isNaN test was reversed -- which made min and
2128    max always return their first argument.)
2129    
2130    ----------------------------------------------------------------------
2131    Name: Matthias Blume
2132    Date: 2002/06/11
2133    Tag: blume-20020611-unixpath
2134    Description:
2135    
2136    Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
2137    
2138    ----------------------------------------------------------------------
2139    Name: Matthias Blume
2140    Date: 2002/06/10 16:35:00 EDT
2141    Tag: blume-20020610-ieeereal
2142    Description:
2143    
2144    I back-ported my implementation of IEEEReal.fromString from the
2145    idlbasis-devel branch so that we can test it.
2146    
2147    Another small change is that ppDec tries to give more information
2148    than just "<sig>" in the case of functors.  However, this code is
2149    broken in some mysterious way if the functor's body's signature
2150    has not been declared by ascription but gets inferred from the
2151    implementation.  This needs fixing...
2152    
2153    ----------------------------------------------------------------------
2154    Name: Matthias Blume
2155    Date: 2002/05/31
2156    Tag: blume-20020531-btrace-mode
2157    Description:
2158    
2159    Resurrected SMLofNJ.Internals.BTrace.mode.  (It accidentally fell by
2160    the wayside when I switched over to using Controls everywhere.)
2161    
2162    ----------------------------------------------------------------------
2163    Name: Lal George
2164    Date: 2002/05/23 12:21:40 EDT
2165    Tag: george-20020523-visual-labels
2166    Description:
2167    
2168    Labels are now displayed in the graphical output to make
2169    the fall-through and target blocks obvious.
2170    
2171    ----------------------------------------------------------------------
2172    Name: Matthias Blume
2173    Date: 2002/05/22 11:03:00 EDT
2174    Tag: blume-20020522-shrink
2175    Description:
2176    
2177    John tweaked yesterday's fix for 1131 to handle an out-of-memory
2178    situation that comes up when allocating huge arrays.
2179    
2180    ----------------------------------------------------------------------
2181    Name: Matthias Blume
2182    Date: 2002/05/21 16:00:00 EDT
2183    Tag: Release_110_40
2184    Description:
2185    
2186    New working release (110.40).  New bootfiles.
2187    
2188    [Also: John Reppy fixed GC bug 1131.]
2189    
2190    ----------------------------------------------------------------------
2191    Name: Matthias Blume
2192    Date: 2002/05/21 12:35:00 EDT
2193    Tag: blume-20020521-cmdoc
2194    Description:
2195    
2196    CM documentation update.
2197    
2198    ----------------------------------------------------------------------
2199  Name: Matthias Blume  Name: Matthias Blume
2200  Date: 2002/05/21 10:55:00 EDT  Date: 2002/05/21 10:55:00 EDT
2201  Tag: blume-20020521-misc  Tag: blume-20020521-misc

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