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Diff of /sml/trunk/HISTORY

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revision 1204, Mon May 20 14:58:33 2002 UTC revision 1747, Fri Jan 14 23:53:21 2005 UTC
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13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Matthias Blume (blume (at) tti - c (dot) org)
17    Date: 2005/01/14 18:00:00 CST
18    Tag: blume-20050114-heap2exec
19    Description:
20    
21    Implemented new (but still experimental) heap2exec facility.  This is
22    tested under Mac OS X and should work under Linux (will test shortly).
23    It will probably also work on the Sparc (will test some time later).
24    
25      - removed old "HACKED_STANDALONE" hack from runtime
26    
27    To be able to test this, uncomment the request for "heap2asm" in
28    config/targets prior to installation.  (Notice that this is different
29    from "heap2exec" mentioned below.  Not a typo.)
30    
31    To perform an actual test, run the command
32    
33       $ bin/heap2exec heapfile execfile
34    
35    (You can put heap2exec on your shell's path.)
36    
37    For example, run
38    
39      $ bin/heap2exec bin/.heap/ml-yacc.ppc-darwin mly
40    
41    This will create a standalone executable called "mly" which you can
42    then invoke directly as a command.
43    
44    ----------------------------------------------------------------------
45    Name: Matthias Blume (blume (at) tti - c (dot) org)
46    Date: 2005/01/07 11:44:00 CST
47    Tag: blume-20050107-mlstring
48    Description:
49    
50    fixed off-by-one error in ML_STRING macro (globals.c)
51    
52    ----------------------------------------------------------------------
53    Name: Matthias Blume (blume (at) tti - c (dot) org)
54    Date: 2004/12/23 18:00:00 CST
55    Tag: blume-20041223-santa
56    Description:
57    
58    Made ml-build script "smarter" (but only very little).
59    
60    ----------------------------------------------------------------------
61    Name: Matthias Blume (blume (at) tti - c (dot) org)
62    Date: 2004/12/21 15:05:00 CST
63    Tag: blume-20041221-longlong
64    Description:
65    
66    * Implemented access to signed and unsigned long long data in NLFFI.
67    (The parameter-passing part of the picture has not complete. But
68    data structure access seems to work.)
69    
70    * Fixed CM's incorrect assumption that the PPC is little-endian.
71      (On the Mac, it is big-endian.  And that's currently our only
72      PPC platform.)
73    
74    ----------------------------------------------------------------------
75    Name: Matthias Blume (blume (at) tti - c (dot) org)
76    Date: 2004/12/21 12:50:00 CST
77    Tag: blume-20041221-memory
78    Description:
79    
80    Some cleanup in the $c/memory.cm library: separated some concerns by
81    moving allocation code and memory access code each into their own
82    files.
83    
84    ----------------------------------------------------------------------
85    Name: Allen Leung (leunga (at) reservoir (dot) com)
86    Date: 2004/12/17 16:12:00 EST
87    Tag: leunga-20041217-cygwin-smlnj-home
88    Description:
89    
90        The Unix I/O library of SML/NJ on cygwin does not understand
91    Windows style pathname, so problems arise when SMLNJ_HOME is set
92    to a Windows style pathname.  _run-sml now converts SMLNJ_HOME
93    to a POSIX pathname on cygwin.
94    
95    ----------------------------------------------------------------------
96    Name: Matthias Blume (blume (at) tti - c (dot) org)
97    Date: 2004/12/16 13:35:00 CST
98    Tag: Release_110_52
99    Description:
100    
101    Last-minute changes incorporated into 110.52.  Release tag moved.
102    
103    The changes:
104       - HashString.hashString' -> HashString.hashSubstring
105       - bug fix in UnivariateStats
106    
107    ----------------------------------------------------------------------
108    Name: Matthias Blume (blume (at) tti - c (dot) org)
109    Date: 2004/12/15 23:40:00 CST
110    Tag: blume-20041215-hashSubstring
111    Description:
112    
113    - HashString.hashString' -> HashString.hashSubstring
114    - corresponding changes in atom.sml
115    - "de-compressed" (aka. un-obfuscated) code for UnivariateStats and
116      added some comments
117    
118    ----------------------------------------------------------------------
119    Name: Matthias Blume (blume (at) tti - c (dot) org)
120    Date: 2004/12/15 15:30:00 CST
121    Tag: (Release_110_52)
122    Description:
123    
124    New working version (110.52).  NEW BOOTFILES!
125    
126    ----------------------------------------------------------------------
127    Name: Matthias Blume (blume (at) tti - c (dot) org)
128    Date: 2004/12/15 12:45:00 CST
129    Tag: blume-20041215-spaces
130    Description:
131    
132    More on the space problem (this time for Win32).
133    
134    ----------------------------------------------------------------------
135    Name: Matthias Blume (blume (at) tti - c (dot) org)
136    Date: 2004/12/14 17:30:00 CST
137    Tag: blume-20041214-spaces
138    Description:
139    
140    Hacked some of the scripts (in particular: the installer) to cope with
141    spaces in filenames a bit better.  But beware: the current "solution"
142    is likely still full of bugs and inherently incomplete.  (We need to
143    do away with those shell scripts for a comprehensive solution.)
144    
145    ----------------------------------------------------------------------
146    Name: Matthias Blume (blume (at) tti - c (dot) org)
147    Date: 2004/12/13 14:45:00 CST
148    Tag: blume-20041213-ml-makedepend
149    Description:
150    
151    Fixed bug in code for ml-makedepend.
152    
153    ----------------------------------------------------------------------
154    Name: Matthias Blume (blume (at) tti - c (dot) org)
155    Date: 2004/12/09 16:30:00 CST
156    Tag: blume-20041209-statistics
157    Description:
158    
159    Added two simple but potentially useful statistics modules to SML/NJ Library.
160    (See CHANGES file there.)
161    
162    ----------------------------------------------------------------------
163    Name: Matthias Blume (blume (at) tti - c (dot) org)
164    Date: 2004/12/01 16:50:00 CST
165    Tag: blume-20041201-atom
166    Description:
167    
168    smlnj-lib:
169    
170      Added function HashString.hashString' for substrings.
171      Hand-inlined CharVector.foldl into HashString (for speed).
172      Modified implementation of structure Atom to avoid extracting
173      strings from substrings unless necessary.
174      (Also see CHANGES file for smlnj-lib.)
175    
176    ----------------------------------------------------------------------
177    Name: Matthias Blume (blume (at) tti - c (dot) org)
178    Date: 2004/11/24 22:15:00 CST
179    Tag: blume-20041124-cml
180    Description:
181    
182    Made sure CML compiles when Position = Int64.
183    
184    ----------------------------------------------------------------------
185    Name: Matthias Blume (blume (at) tti - c (dot) org)
186    Date: 2004/11/24 14:30:00 CST
187    Tag: blume-20041124-position
188    Description:
189    
190    The compiler can now be compiled in a mode that makes structure Position
191    equal to Int64.  The default, however, is unchanged (Position = Int31)
192    for the time being.
193    
194    To enable 64-bit positions, use the following procedure:
195    
196    1. Start sml
197    2. Autoload $smlnj/cmb.cm (if not already autoloaded)
198    3. Type
199          #set (CMB.symval "USE_64_BIT_POSITIONS") (SOME 1);
200    4. Run CMB.make() as usual.
201    
202    This is barely tested.  The only test so far was a little SML program
203    counting the number of characters in an 8-gigabyte file by
204    reading it character-by-character.  That test was successful.
205    
206    In support of 64-bit positions, a number of new functions have been
207    added to the runtime system.
208    
209    ----------------------------------------------------------------------
210    Name: Matthias Blume (blume (at) tti - c (dot) org)
211    Date: 2004/11/23 14:45:00 CST
212    Tag: blume-20041123-useFile
213    Description:
214    
215    Fixed a problem with unhelpful error messages related to problems with
216    .cm- or .sml files that appear as part of the sml command line.
217    
218    ----------------------------------------------------------------------
219    Name: Matthias Blume (blume (at) tti - c (dot) org)
220    Date: 2004/11/18 15:40:00 CST
221    Tag: Release_110_51
222    Description:
223    
224    New working version (110.51).  NEW BOOTFILES!
225    
226    ----------------------------------------------------------------------
227    Name: Matthias Blume (blume (at) tti - c (dot) org)
228    Date: 2004/11/18 15:35:00 CST
229    Tag: <none>
230    Description:
231    
232    Enabled dlopen and friends for FreeBSD (as recommended by Johannes 5
233    Joemann).
234    
235    ----------------------------------------------------------------------
236    Name: Allen Leung (leunga (at) reservoir (dot) com)
237    Date: 2004/11/17 16:05:21 EST 2004
238    Tag: leunga-20041117-mlrisc-live-kill
239    Description:
240    
241       Added support for MLTree constructs LIVE and KILL
242    to all the architectures.
243    
244    ----------------------------------------------------------------------
245    Name: Matthias Blume (blume (at) tti - c (dot) org)
246    Date: 2004/11/13 00:20:00 CST
247    Tag: blume-20041113-versiontool
248    Description:
249    
250    - Stripped down the versiontool: It now only handles the version number.
251      The date string is generated at bootstrap time (during makeml).
252    
253    - In a previous commit, fixed a minor issue with how polyequal is being
254      translated.  In particular, the code now "looks through" abstractions.
255      This results in slightly fewer polyEqual warnings and hopefully slightly
256      more efficient code.  Important examples for where this matters are
257      the new int64 and word64 types.
258    
259    ----------------------------------------------------------------------
260    Name: Matthias Blume (blume (at) tti - c (dot) org)
261    Date: 2004/11/12 00:30:00 CST
262    Tag: blume-20041112-int64
263    Description:
264    
265    Structure Int64 fully hooked in.  (The implementation is not very
266    efficient, though.)
267    
268    ----------------------------------------------------------------------
269    Name: Matthias Blume (blume (at) tti - c (dot) org)
270    Date: 2004/11/11 17:30:00 CST
271    Tag: blume-20041111-more64
272    Description:
273    
274    All the pieces of Word64 are now there, with the exception of the
275    conversions from and to LargeWord. (Eventually these need to be identities,
276    but for the time being they don't even make sense because LargeWord is
277    32-bit wide.)
278    
279    Also started to add similar support for Int64, but major pieces of that
280    are still missing.
281    
282    ----------------------------------------------------------------------
283    Name: Matthias Blume (blume (at) tti - c (dot) org)
284    Date: 2004/11/11 00:15:00 CST
285    Tag: blume-20041111-word64
286    Description:
287    
288    Structure Word64 is now (almost) complete, word literals and patterns
289    seem to work.  There are a few odd pieces missing.  In particular,
290    I didn't do the {from,to}LargeWord parts because LargeWord is still Word32
291    at the moment.
292    
293    Making Word64 official would mean that LargeWord becomes Word64.  But
294    this requires extreme care because most word-word conversions have to
295    go through LargeWord, so making a mistake means loss of efficiency or
296    worse.  Eventually there will be a solution similar to (but actually
297    simpler than) what I did with IntInf.
298    
299    ----------------------------------------------------------------------
300    Name: Matthias Blume (blume (at) tti - c (dot) org)
301    Date: 2004/11/10 18:12:00 CST
302    Tag: blume-20041110-64bit
303    Description:
304    
305    More 64-bit hacking (but still not even half-way there yet).
306    Also, some assorted improvements to the handling of 8-bit words.
307    
308    ----------------------------------------------------------------------
309    Name: Matthias Blume (blume (at) tti - c (dot) org)
310    Date: 2004/11/09 17:50:00 CST
311    Tag: <none>
312    Description:
313    
314    Started adding some infrastructure for supporting 64-bit int- and
315    word-types.  (Still in its very early stages.)
316    
317    ----------------------------------------------------------------------
318    Name: Matthias Blume (blume (at) tti - c (dot) org)
319    Date: 2004/10/28 10:45:00 CDT
320    Tag: Release_110_50
321    Description:
322    
323    New working version (110.50).  NEW BOOTFILES!
324    
325                 =====================
326    
327    Also:
328    
329      - Changend config/srcarchiveurl from a file just
330        containing the URL string into a file containing
331        shell script code.  The code has access to the $VERSION variable.
332      - Made corresponding changes to config/install.sh and config/unpack.
333      - Default contents of config/srcarchiveurl uses $VERSION and
334        normally does not have to be edited to reflect a version change.
335    
336      (As a result, a version change can be done by just editing
337       config/version, the rest is now automatic.)
338    
339    ----------------------------------------------------------------------
340    Name: Matthias Blume (blume (at) tti - c (dot) org)
341    Date: 2004/10/27 17:50:00 CDT
342    Tag: blume-20041027-btrace-msg
343    Description:
344    
345    BackTrace.monitor now also reports the source of the exception that
346    triggered the trace.
347    
348    ----------------------------------------------------------------------
349    Name: Matthias Blume (blume (at) tti - c (dot) org)
350    Date: 2004/10/27 17:20:00 CDT
351    Tag: blume-20041027-x86-c-calls
352    Description:
353    
354    This is the HISTORY entry for two earlier commits, both concerning
355    the x86 c-calls code in MLRISC:
356    
357      - added a missing LOAD in the code that deals with struct arguments
358      - made sure the caller does not add the wrong number of bytes to the
359        stack pointer after a call of a function returning a struct
360        (the callee already pops the implicit argument which points to
361         the space reserved for the result)
362    
363    ----------------------------------------------------------------------
364    Name: Allen Leung (leunga (at) reservoir (dot) com)
365    Date: 2004/10/24 14:00:00 EST
366    Tag: leunga-20041024-x86-gas-fucomip
367    Description:
368    
369       John discovered a bug in the syntax of fucomip.
370       The opcodes FU?COMIP? have been changed to
371    
372           fu?comip? %st(i), %st
373    
374    ----------------------------------------------------------------------
375    Name: Matthias Blume (blume (at) tti - c (dot) org)
376    Date: 2004/10/20 15:06:00 CDT
377    Tag: blume-20041020-standalone-backtrace
378    Description:
379    
380    Added a mechanism for getting back-trace information from standalone
381    programs.  Here is how it works:
382    
383       1. The part of the program from which you want to get backtrace
384          information (usually the whole program) should be wrapped with
385          BackTrace.monitor.  This is a (unit->'a)->'a function, and your
386          main program could be modified from something like
387    
388             fun main (pgm, args) = ...
389    
390         to
391    
392            fun main (pgm, args) = BackTrace.monitor (fn () => ...)
393    
394       2. To be able to access BackTrace.monitor, you have to add
395          library $smlnj-tdp/plugins.cm to the .cm file that contains your
396          main function.
397    
398       3. Remove all compiled code (i.e., all the .cm/ subdirectories that
399          CM might have created in the past for your project).
400    
401       4. Build the system using this command line:
402    
403             ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
404                      myprog.cm MyProg.main myprog
405    
406          instead of the usual
407    
408             ml-build myprog.cm MyProg.main myprog
409    
410    I changed a library name:
411    
412       $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
413    
414    New libraries:
415    
416       $smlnj-tdp/back-trace.cm
417          -- when loaded causes the back-trace plugin to be installed
418       $smlnj-tdp/coverage.cm
419          -- when loaded causes the coverage plugin to be installed
420    
421    ----------------------------------------------------------------------
422    Name: Matthias Blume (blume (at) tti - c (dot) org)
423    Date: 2004/10/18 16:45:00 CDT
424    Tag: blume-20041018-groupowner
425    Description:
426    
427    Added an "obsolete" warning for the "group owner" syntax to CM's parser.
428    
429    Eliminated group owner specs from .cm files throughout the source tree.
430    
431    ----------------------------------------------------------------------
432    Name: Matthias Blume (blume (at) tti - c (dot) org)
433    Date: 2004/10/15 15:45:00 CDT
434    Tag: blume-20041015-coverage
435    Description:
436    
437    * Test coverage tool added!
438    * Further reorganization of tracing-, debugging-, and profiling support:
439    
440        - moved original BTImp -- now called BackTrace -- into a separate
441          library called $/trace-debug-profile.cm
442        - eliminated all mentions of BTrace from SMLofNJ.Internals
443        - only the instrumentation mechanism is now left in the compiler proper
444        - BackTrace module is a plugin which is NOT plugged in by default
445        - Coverage module is another such plugin
446    
447    To get the benefits of any of these plugin modules, the code in
448    question must be compiled with tdp instrumentation turned on.  This
449    can be done by setting SMLofNJ.Internals.TDP.mode to true.
450    (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
451    
452    Plugins are selected at link time.  (Pre-compiled instrumented code
453    can be re-loaded with different plugins in effect.)  When an
454    instrumented module is linked, whatever plugins are at that time
455    enabled will come into effect for that module.
456    
457    To enable the back-trace plugin, load library $/trace-debug-profile.cm
458    and invoke BackTrace.install() (e.g., from the interactive prompt).
459    To enable the coverage plugin, load the same library and invoke
460    Coverage.install().
461    
462    Back-traces are generated automatically on uncaught exceptions and
463    when the code in question explicitly invokes BackTrace.trigger().
464    
465    Coverage (and execution frequency-) information must be queried
466    explicitly by calling Coverage.not_covered and Coverage.hot_spots.
467    
468    ----------------------------------------------------------------------
469    Name: Matthias Blume (blume (at) tti - c (dot) org)
470    Date: 2004/10/14 17:40:00 CDT
471    Tag: blume-20041014-tdp-core
472    Description:
473    
474    Snapshot of a significant overhaul of how the trace/debug/profile support
475    is hooked into the system (specifically: Core and SMLofNJ.Internals).
476    
477    ----------------------------------------------------------------------
478    Name: Matthias Blume (blume (at) tti - c (dot) org)
479    Date: 2004/10/13 16:34:00 CDT
480    Tag: blume-20041013-tdp
481    Description:
482    
483    Some rationalization of names:
484    
485       structure BTrace -> structure TDPInstrument
486       etc.
487    
488    This is is preparation of using the original back-trace
489    instrumentation for other purposes.  "TDP" stands for
490    Trace/Debug/Profile.
491    
492    The control flag controlling whether instrumentation is on or off is now
493    registered under a different name, so instead of running sml as
494    
495     sml -Cinstrument.btrace-mode=true
496    
497    one has to say
498    
499     sml -Ctdp.instrument=true
500    
501    ----------------------------------------------------------------------
502    Name: Matthias Blume (blume (at) tti - c (dot) org)
503    Date: 2004/10/11 16:37:00 CDT
504    Tag: blume-20041011-regions
505    Description:
506    
507    Made some minor modifications to elabcore.sml to have source regions
508    be propagated more tightly -- resulting in better (i.e., smaller)
509    regions being reported in error- and debug messages.
510    
511    ----------------------------------------------------------------------
512    Name: Matthias Blume (blume (at) tti - c (dot) org)
513    Date: 2004/10/08 22:50:00 CDT
514    Tag: blume-20041008-cmkw
515    Description:
516    
517    Fixed handling of keywords in .cm files: After seeing "is" the lexer
518    treats subsequent occurrences of "group", "library", "source", "is",
519    "*", and "-" as ordinary identifiers rather than keywords.
520    
521    Most seriously, this fixes a problem with CM's "shell" tool.  The tool
522    is supposed to accept a tool argument called "source", but this did
523    not work because of the clash with the keyword.
524    
525    ----------------------------------------------------------------------
526    Name: Matthias Blume (blume (at) tti - c (dot) org)
527    Date: 2004/10/07 16:00:00 CDT
528    Tag: blume-20041007-cleanup
529    Description:
530    
531    Assorted cleanup work:
532    
533      - got rid of intstrmap in favor of using the library's
534        hash table implementation
535      - threw out most of the pathnames stuff, as it was not used anyway
536      - simplified tokentable implementation
537      - fixed some minor spelling errors
538    
539    ----------------------------------------------------------------------
540    Name: Matthias Blume (blume (at) tti - c (dot) org)
541    Date: 2004/10/06 15:15:15 CDT
542    Tag: blume-20041006-handler
543    Description:
544    
545    Cleaned up the absyn to reflect the invariant that HANDLE always
546    carries a FNexp as part of the type definition.  This eliminates some
547    superfluous sanity checks at runtime down the road.
548    
549    Some minor cleanup of the btrace code.
550    
551    ----------------------------------------------------------------------
552    Name: Matthias Blume (blume (at) tti - c (dot) org)
553    Date: 2004/10/01 10:20:30 CDT
554    Tag: blume-20041001-slave
555    Description:
556    
557    Added hack to make slave mode work in the presence of the version
558    tool.  (Still, since the master does two passes over the code for
559    CMB.make, the release number gets bumped twice when slaves are
560    attached.  I don't know if this is worth fixing...)
561    
562    ----------------------------------------------------------------------
563    Name: Matthias Blume (blume (at) tti - c (dot) org)
564    Date: 2004/09/30 10:55:00 CDT
565    Tag: blume-20040930-version
566    Description:
567    
568    * Moved the "version" magic into its own little library under
569      src/system/smlnj/internal.  This avoids expensive reconstruction of
570      a stable src/compiler/core.cm.
571    
572    * At the same time, structure CompilerVersion is now known as
573      structure SMLNJVersion.
574    
575    * Arranged for the version tool to NOT kick in when rebuilding the system
576      (makeml -rebuild, fixpt).  Otherwise one would never reach a fixpoint.
577      Also, loading the versiontool does not work when rebuilding the system
578      because CM is not properly initialized at that time.
579    
580    ----------------------------------------------------------------------
581    Name: Matthias Blume (blume (at) tti - c (dot) org)
582    Date: 2004/09/29 14:00:00 CDT
583    Tag: blume-20040929-autoversion
584    Description:
585    
586    Implemented some CM magic to have
587        file src/compiler/TopLevel/main/version.sml
588    generated automagically.
589    The version is taken from two files: config/version and config/release.
590    The first is expected to contain a two-part version number such as 110.49.
591    The second should contain a single number, but it may be missing.
592    
593    If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
594    time the version tool is loaded (which is the first time you say CMB.make),
595    then the tool will increment the value stored in config/release every
596    time CMB.make is invoked.
597    
598    The binfile format is now insensitive to anything beyond the first
599    two components of a version number, so bumping the release does not render
600    binfiles incompatible.  Auto-bumping can be used to keep track of versions
601    during development without invalidating existing binfiles.
602    
603    In any case, every CMB.make updates the date information in version.sml.
604    (This is the date that is printed in the banner.)
605    
606    ----------------------------------------------------------------------
607    Name: Matthias Blume (blume (at) tti - c (dot) org)
608    Date: 2004/09/28 10:53:00 CDT
609    Tag: blume-20040928-controls
610    Description:
611    
612    Some cleanup of the controls code.
613    
614    ----------------------------------------------------------------------
615    Name: Matthias Blume (blume (at) tti - c (dot) org)
616    Date: 2004/09/27 22:08:00 CDT
617    Tag: blume-20040927-controls
618    Description:
619    
620    Added two pieces of functionality to the Controls interface:
621    
622    1.   val save'restore: 'a control -> unit -> unit
623    
624       grabs the current value of the control in stage 1 and restores it
625       in stage 2.
626    
627    2.   val set' : 'a control * 'a -> unit -> unit
628    
629       stores the given value into the control in stage 2 (i.e., delayed)
630       but does all error checking in stage 1.
631       (This is for string controls that need to do parse their argument --
632        something that might fail.  In some cases, notably in CM, one
633        already knows the intended argument but wants to delay the actual
634        assignment until a time when error recovery would be more difficult.)
635    
636    Changed the handling of controls in tool arguments to classes "sml" and
637    "lazysml":
638       - use Controls.save'restore as a more robust way of restoring the
639         old value (in particular: without having to re-parse the string)
640       - use controls to handle the "overload" keyword in the init group
641         (I believe this change actually fixes a long-standing obscure bug.)
642    
643    ----------------------------------------------------------------------
644    Name: Matthias Blume (blume (at) tti - c (dot) org)
645    Date: 2004/09/27 17:00:00 CDT
646    Tag: blume-20040927-lazysml
647    Description:
648    
649    Added a new tool class called "lazysml" to CM's tool chest.  The only
650    difference to "sml" is that compilation is done with Control.lazysml
651    set to true.  A source of class "lazysml" is automatically recognized
652    by a file name suffix of ".lml".
653    
654    In addition to the above feature, the original class "sml" now also
655    supports a tool argument "lazy" which has the same effect.  As a
656    result, the following three lines are equivalent:
657    
658        foo.sml : lazysml
659        foo.sml : sml (lazy)
660        foo.sml (lazy)
661    
662    The setting goes into effect both during parsing and during
663    compilation.  The original setting is restored right after parsing and
664    after compilation, respectively.
665    
666    In addition to all the above, there is also a general mechanism to set
667    ANY of the "controls" that are available at the command line via
668    "-C..." on a per-sml-file basis.  The same rules that apply for "lazy"
669    apply as well. (In fact, "lazy" is implemented as a special case of
670    the general mechanism.)
671    
672    The .cm file syntax uses a new keyword tool argument called "with".
673    There are several ways of indicating the desired settings:
674    
675        foo.sml (with:parser.quotations=true)
676        foo.sml (with:(name:parser.quotations value:true))
677        foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
678        foo.sml (with:(name1=value1 name2=value2 ...))
679        foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
680    
681        etc.
682    
683    Another possible abbreviation is to leave out the =v or value:v part
684    if the name refers to a boolean control (in which case the value is
685    taken to be true).  Thus, one could get lazy sml also by saying:
686    
687        foo.sml (with:parser.lazy-keyword=true)
688        foo.sml (with:parser.lazy-keyword)
689        foo.sml (with:(name:parser.lazy-keyword value:true))
690        foo.sml (with:(name:parser.lazy-keyword))
691    
692    ----------------------------------------------------------------------
693    Name: Matthias Blume (blume (at) tti - c (dot) org)
694    Date: 2004/09/24 16:22:00 CDT
695    Tag: blume-20040924-ppc-long-branch
696    Description:
697    
698    Turned message about "emiting long form of branch" off by default.
699    Added a control flag to turn it back on when desired.
700    
701    ----------------------------------------------------------------------
702    Name: Matthias Blume (blume (at) tti - c (dot) org)
703    Date: 2004/09/24 16:05:00 CDT
704    Tag: blume-20040924-rounding
705    Description:
706    
707    Applied patch for setting rounding modes under Mac OS X.  Thanks to
708    Melissa O'Neill for providing the code!
709    
710    ----------------------------------------------------------------------
711    Name: Matthias Blume (blume (at) tti - c (dot) org)
712    Date: 2004/09/23 17:30:00 CDT
713    Tag: blume-20040923-envvars
714    Description:
715    
716    1. Changed definition of type ControlRegistry.registry_tree to
717       include control_info (i.e., the name of the controlling environment
718       variable).
719    
720    2. Added command-line flags -e and -E to print the names of environment
721       variables that can be used to control internal settings.
722       (This uses the new API mentioned in 1.)
723    
724    ----------------------------------------------------------------------
725    Name: Matthias Blume (blume (at) tti - c (dot) org)
726    Date: 2004/09/13 16:50:00 CDT
727    Tag: Release_110_49
728    Description:
729    
730    New working version (110.49).  NEW BOOTFILES!
731    
732    ----------------------------------------------------------------------
733    Name: Matthias Blume
734    Date: 2004/09/13 16:20:00 CDT
735    Tag: blume-20040913-config-mlrisc
736    Description:
737    
738    Put target "mlrisc" back into the default list.
739    (There is no harm in having it, and some users have expressed their
740    wish to have "mlrisc" included by default.)
741    
742    ----------------------------------------------------------------------
743    Name: John Reppy
744    Date: 2004/09/13
745    Tag: jhr-20040913-signals
746    Description:
747    
748    Fixed the signal masking code to properly nest mask/unmask operations
749    on a per-signal basis.
750    
751    ----------------------------------------------------------------------
752    Name: Matthias Blume (blume (at) tti - c (dot) org)
753    Date: 2004/09/08 13:20:00 CDT
754    Tag: blume-20040908-heap-magic
755    Description:
756    
757    Bumped the heap macig number to 0x09082004 to account for the changed
758    layout of the ML frame under MacOS X.
759    
760    ----------------------------------------------------------------------
761    Name: Allen Leung (leunga (at) reservoir (dot) com)
762    Date: 2004/09/03 11:26:00 EST
763    Tag: leunga-20040903-cygwin-install
764    Description:
765    
766       Added a patch to _arch-n-opsys to enable the Cygwin runtime.
767    The Cygwin runtime is turned on by setting the environment
768    variable SMLNJ_CYGWIN_RUNTIME to 1.
769    
770    ----------------------------------------------------------------------
771    Name: Matthias Blume (blume (at) tti - c (dot) org)
772    Date: 2004/08/31 17:15:00 CDT
773    Tag: blume-20040831-core
774    Description:
775    
776    Added some exports to src/compiler/core.cm upon request by J. Joemann.
777    
778    ----------------------------------------------------------------------
779    Name: Matthias Blume (blume (at) tti - c (dot) org)
780    Date: 2004/08/30 17:55:00 CDT
781    Tag: blume-20040830-installer
782    Description:
783    
784    Upon request by Johannes Joemann:
785    
786    - improved ML code of installer to fall back to coping when renaming
787      fails (i.e., when source and target are on different file systems);
788      the code compiles but has yet to be tested in anger
789    - removed mlrisc from list of default targets (config/targets)
790    
791    ----------------------------------------------------------------------
792    Name: Matthias Blume (blume (at) tti - c (dot) org)
793    Date: 2004/08/27 17:20:00 CDT
794    Tag: blume-20040827-ptreql
795    Description:
796    
797    Added ptreql primop to structure InlineT (upon request from Larry
798    Paulson).
799    
800    ----------------------------------------------------------------------
801    Name: Allen Leung (leunga (at) reservoir (dot) com)
802    Date: 2004/08/15 21:21:00 EST
803    Tag: leunga-110_48-udgraph
804    Description:
805    
806    Another bug fix from Carl Hauser:
807    
808    diff /net/niflab/smlnj48/src/MLRISC/graphs/udgraph.sml udgraph.sml
809    > 48c48
810    > <              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then es else
811    > e::L)
812    > ---
813    > >              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then L else e::L)
814    > Without this, any deletion of an edge in an undirected graph does severe
815    > violence to the graph.
816    
817    ----------------------------------------------------------------------
818    Name: Allen Leung (leunga (at) reservoir (dot) com)
819    Date: 2004/08/10 23:35:00 EST
820    Tag: leunga-110_48-ppc
821    Description:
822    
823       The IBM/MacOS syntax switch on PPC was incorrectly swapped.
824    
825    ----------------------------------------------------------------------
826    Name: Matthias Blume (blume (at) tti - c (dot) org)
827    Date: 2004/08/10 12:00:00 CDT
828    Tag: Release_110_48
829    Description:
830    
831    New working version (110.48).  NEW BOOTFILES!
832    
833    ----------------------------------------------------------------------
834    Name: Allen Leung (leunga (at) reservoir (dot) com)
835    Date: 2004/08/09 12:21:00 EST
836    Tag: leunga-110_47-dijsktra
837    Description:
838    
839    Bug fix from Carl Hauser:
840    
841    single_source_shortest_paths in dijkstra.sml was observed to get wrong
842    answers (by comparing to single_source_shortest_paths in bellman-ford.sml).
843    
844    The problem is that following the expression A.update(dist,s,Num.zero)
845    it is necessary to update the priority queue using Q.decreaseWeight(Q,s).
846    
847    ----------------------------------------------------------------------
848    Name: Matthias Blume (blume (at) tti - c (dot) org)
849    Date: 2004/08/06 18:10:00 CDT
850    Tag: blume-20040806-cmdline
851    Description:
852    
853    Fiddled with handling of command-line options:
854    
855      * sml now quits after processing the command line
856        if -H, -S, -h<n>, or -s<n> appears as the last
857        command-line argument
858      * a new option -q terminates the session when encountered on
859        the command line; subsequent arguments will be ignored
860      * bug fixes: short (erroneous) arguments are no longer ignored
861        completely
862    
863    ----------------------------------------------------------------------
864    Name: Allen Leung (leunga (at) reservoir (dot) com)
865    Date: 2004/08/04 18:17:00 EST
866    Tag: leunga-110_47-ppc-ibm-asm
867    Description:
868    
869      - Added minimal IBM assembly syntax support for PowerPC.
870    
871      - Cygwin: manually changed the file cygwin.def.  Some exported symbols have
872        been altered in the runtime.  We need an automatic way to keep the file
873        in sync.
874    
875    ----------------------------------------------------------------------
876    Name: Matthias Blume (blume (at) tti - c (dot) org)
877    Date: 2004/08/04 14:00:00 CDT
878    Tag: Release_110_47
879    Description:
880    
881    New working version (110.47).  NEW BOOTFILES!
882    
883    ----------------------------------------------------------------------
884    Name: Matthias Blume (blume (at) tti - c (dot) org)
885    Date: 2004/08/03 14:25:00 CDT
886    Tag: blume-20040803-callingconv
887    Description:
888    
889    Added low-level support for choosing C calling conventions by
890    twiddling the type of rawccall.  (See
891    src/compiler/Semant/types/cproto.sml for details.)
892    
893    ----------------------------------------------------------------------
894    Name: Matthias Blume (blume (at) tti - c (dot) org)
895    Date: 2004/08/02 15:55:00 CDT
896    Tag: blume-20040802-backout
897    Description:
898    
899    Backed out of change to win32-filesys.c.  The earlier patch to
900    get_file_time caused CM to produce files with the wrong time stamp.
901    
902    ----------------------------------------------------------------------
903    Name: Matthias Blume (blume (at) tti - c (dot) org)
904    Date: 2004/08/02 14:45:00 CDT
905    Tag: blume-20040802-nlffi-win32
906    Description:
907    
908    Added NLFFI support for Win32, adapted from a patch provided by David
909    Hansel.  This is currently completely untested.  Also, the issue
910    concerning stdcall vs. ccall is still unresolved.
911    
912    ----------------------------------------------------------------------
913    Name: Matthias Blume (blume (at) tti - c (dot) org)
914    Date: 2004/07/30 17:55:00 CDT
915    Tag: blume-20040730-various
916    Description:
917    
918    Gearing up towards 110.47...
919    
920    - various minor bugfixes to ml-nlffigen
921    - a beginning of a manual for nlffi
922    
923    - eliminated 'export name=value' in config/install.sh as this does
924      not work with certain versions of /bin/sh
925      (Thanks to David King at Motorola for catching this.)
926    
927    - several bugfixes provided or suggested by David Hansel at Reactive Systems:
928      - added a test for tm==NULL to gmtime.c and localtime.c
929      - applied patch for incorrect GetFileTime under win32
930      - toSeconds -> toMilliseconds in Win32/win32-process.sml
931    
932    ----------------------------------------------------------------------
933    Name: Matthias Blume (blume (at) tti - c (dot) org)
934    Date: 2004/07/21 18:20:00 CDT
935    Tag: blume-20040721-nlffigen
936    Description:
937    
938    - Fixed minor issue in ml-nlffigen: Now generate structure T_foo
939      for a typedef to an incomplete type, but leave out the "typ" member.
940      (This is just for consistency.)
941    - Started to produce what is supposed to become better (i.e., comprehensive)
942      documentation of what ml-nlffigen does and produces.
943    
944    ----------------------------------------------------------------------
945    Name: Matthias Blume (blume (at) tti - c (dot) org)
946    Date: 2004/07/14 16:25:00 CDT
947    Tag: blume-20040714-union
948    Description:
949    
950    Added C_UNION to c-calls/c-types.sml and updated the machinery
951    (ml-nlffigen, cproto.sml) that conveys C function interface
952    information to the code generator.
953    
954    However, the actual architecture-specific implementation of function
955    arguments and results that are C unions is still not implemented.
956    
957    ----------------------------------------------------------------------
958    Name: Allen Leung (leunga (at) reservoir (dot) com)
959    Date: 2004/07/14 14:38:00 EST
960    Tag: leunga-110_46_1-ppc-lwzu
961    Description:
962    
963        Added these instructions to the PowerPC architecture:
964        LBZU(X), LHZU(X), LWZU(X),
965        STWU(X), STFDU, STFSU
966    
967        etc...
968    
969        Note: I haven't added their instruction encoding into the description.
970    
971    ----------------------------------------------------------------------
972    Name: Allen Leung (leunga (at) reservoir (dot) com)
973    Date: 2004/07/13 15:04:00 EST
974    Tag: leunga-110_46_1-ppc-lwarx
975    Description:
976    
977       Added the two instructions LWARX and STWCX to the PowerPC
978    instruction set.
979    
980       A (untested) rewrite of loop-structure.sml.  The old version
981    is completely broken.
982    
983    ----------------------------------------------------------------------
984    Name: Matthias Blume (blume (at) tti - c (dot) org)
985    Date: 2004/07/13 13:50:00 CDT
986    Tag: blume-20040713-nlffi
987    Description:
988    
989    - use paramAlloc to report c-calls with too many arguments
990      (for PPC version where parameter area is pre-allocated)
991    - added ccall_maxargspace to machspec (to implement the above)
992    - made "make" commend in CM's "make" tool configurable
993    - added option (default: on) for passing the name of the SML/NJ's "bin"
994      directory to "make"; the call looks like this:
995    
996         make <options> SMLNJ_BINDIR=<dir> <target>
997    
998      This can be used by the Makefile to, e.g., pick the "right" version
999      of ml-nlffigen.
1000    - minor code tweaks
1001    
1002    ----------------------------------------------------------------------
1003    Name: Matthias Blume (blume (at) tti - c (dot) org)
1004    Date: 2004/07/12 22:50:00 CDT
1005    Tag: blume-110_46_1-macosx-nlffi
1006    Description:
1007    
1008    NLFFI under Mac OS X now working (sort of).  This is largely untested,
1009    though.
1010    
1011    Note:  1. You have to make a new, clean build of the runtime system.
1012           2. There are new BOOTFILES, you have to use them!
1013              (Doing the bootstrap process yourself would be *very* painful!
1014               If you absolutely have to do it, build the system under
1015               a different architecture and then cross-compile.)
1016    
1017    Version bumped to 110.46.1 to account for runtime data format changes.
1018    
1019    ----------------------------------------------------------------------
1020    Name: Matthias Blume (blume (at) tti - c (dot) org)
1021    Date: 2004/06/18 14:30:00 CDT
1022    Tag: blume-20040618-unix
1023    Description:
1024    
1025    Changed the implementation of structure Unix so that the same stream
1026    is returned every time one of the {text,bin}{In,Out}streamOf functions
1027    is invoked on the same proc.  This is not what the spec currently
1028    says -- although IMO it arguably should.  (See discussion below.)
1029    
1030    ----------------------------------------------------------------------
1031    Name: Matthias Blume (blume (at) tti - c (dot) org)
1032    Date: 2004/06/17 18:15:00 CDT
1033    Tag: Release_110_46
1034    Description:
1035    
1036    New working version (110.46).  NEW BOOTFILES!
1037    
1038    ----------------------------------------------------------------------
1039    Name: Matthias Blume (blume (at) tti - c (dot) org)
1040    Date: 2004/06/17 17:20:00 CDT
1041    Tag: blume-20040617-timer-unix
1042    Description:
1043    
1044    Changed the interface of structures Timer and Unix to match the most
1045    recent Basis spec.
1046    
1047    In the case of Unix there still seems to be an open/weird issue:
1048    
1049       The {text,bin}{In,Out}streamOf functions are supposed to create
1050       fresh streams whenever they are called -- as opposed to have them
1051       return the same stream every time.  This design is supposed to
1052       prevent space leaks caused by proc values hanging on to streams.
1053    
1054       The reap function, on the other hand, is supposed to close the
1055       streams.  This cannot be done without having a handle on the
1056       stream in proc after all...
1057    
1058    I took the liberty to implement the following stopgap solution:
1059    
1060      The proc value hangs on to the most recently created stream(s).
1061      Reap closes those.  If either or both of the two streams hadn't
1062      been created at all yet, then reap will close the corresponding
1063      file descriptors directly.
1064    
1065    PS: I don't understand the original space leak argument anymore.  If
1066    a proc hangs on to the imperative stream, then I/O operations on those
1067    will advance the state of the cached stream and avoid the space leak.
1068    
1069    ----------------------------------------------------------------------
1070    Name: Matthias Blume (blume (at) tti - c (dot) org)
1071    Date: 2004/05/28 16:45:00 CDT
1072    Tag: blume-20040528-basis
1073    Description:
1074    
1075    Added signature PACK_REAL and exported functor PrimIO.
1076    
1077    ----------------------------------------------------------------------
1078    Name: Matthias Blume (blume (at) tti - c (dot) org)
1079    Date: 2004/05/25 16:00:00 CDT
1080    Tag: blume-20040525-group-owner
1081    Description:
1082    
1083    CM now ignores (but still accepts) the "owner" information in group
1084    descriptions.  The owner of a group is its next enclosing
1085    library. Each group must have a unique owner.  (There is a virtual
1086    "toplevel" library that owns groups which are not nested within a real
1087    library.)  Previously, each group had to explicitly declare its owner,
1088    and CM would check that such a declaration is correct.  The new scheme
1089    is to have CM check that for each group there is precisely one owning
1090    library.
1091    
1092    The advantage of the new scheme is that the programmer no longer needs
1093    to maintain the somewhat annoying owner information.  The downside is
1094    that CM cannot enforce the ownership rule across multiple runs of
1095    CM.make.  Fortunately, enclosing the same group in two different
1096    libraries A and B which are not part of the same program does not
1097    cause real problems.
1098    
1099    ----------------------------------------------------------------------
1100    Name: Matthias Blume (blume (at) tti - c (dot) org)
1101    Date: 2004/05/20 16:00:00 CDT
1102    Tag: blume-20040520-win32
1103    Description:
1104    
1105    Made the win32 version work again.  (Strangely, a misplaced comma had
1106    slipped into win32-process.c which prevented the runtime from being
1107    compiled correctly.)
1108    
1109    Also, included a minor addition to ml-build.bat analogous to what was
1110    done in blume-20040519-ml-build.
1111    
1112    ----------------------------------------------------------------------
1113    Name: Matthias Blume (blume (at) tti - c (dot) org)
1114    Date: 2004/05/19 22:10:00 CDT
1115    Tag: blume-20040519-ml-build
1116    Description:
1117    
1118    Arranged for ml-build to clean up after itself a little bit better.
1119    The script generates a temporary SML source file and compiles it using
1120    CM, so CM generates metadata (GUID, SKEL, objectfile) for it.  It now
1121    gets rid of those at the end, so they don't accumulate under .cm.
1122    
1123    This required a minor change to install.sh because the name of the
1124    metadata directory (default: .cm) is actually configurable at
1125    installation time.
1126    
1127    ----------------------------------------------------------------------
1128    Name: Matthias Blume (blume (at) tti - c (dot) org)
1129    Date: 2004/05/18 15:50:00 CDT
1130    Tag: blume-20040518-mkreader
1131    Description:
1132    
1133    Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
1134    implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
1135    
1136    ----------------------------------------------------------------------
1137    Name: Matthias Blume (blume (at) tti - c (dot) org)
1138    Date: 2004/05/11 14:35:00 CDT
1139    Tag: blume-20040511-win32sock
1140    Description:
1141    
1142    Added previously missing support for many socket-related functions
1143    under win32.  Thanks to David Hansel <hansel@reactive-systems.com>
1144    for the voluminous patch!
1145    
1146    (I have not tested this patch under win32 yet.)
1147    
1148    Here is David's e-mail:
1149    
1150    Hi,
1151    
1152    Attached to this email you find a diff against sml/nj 110.45
1153    that will enable socket support under Windows.
1154    
1155    To apply the patch (using unix or cygwin)
1156    1) gunzip runtime.diff.gz
1157    2) "cd" into "src/runtime" in the source tree of a fresh
1158       110.45 installation.
1159    3) patch -p 1 < [your/path/to]runtime.diff
1160    
1161    The code compiles fine but has NOT yet been extensively tested.
1162    I only ran a few tests for basic socket client functionality
1163    (which worked fine).  Especially the functions that use ioctl
1164    are not tested at all and might not work (see below).
1165    
1166    I implemented this since we want to move to a newer version of sml/nj
1167    but need socket support in order to use it.  This is the first time I
1168    even had a look at the sml/nj source,  so please review my changes
1169    before making this part of the distribution!  Here are a few issues
1170    that I think might be better for someone to solve who is more
1171    familiar with the sml/nj source (and socket programming):
1172    
1173    - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
1174      exception since I could not figure out what the windows equivalent
1175      of these functions is
1176    
1177    - In sockets-osdep.h there are a some #include statements that are
1178      only used in a few files that include sockets-osdep.h
1179    
1180    - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
1181      does not process its return value since I don't know how to
1182      report an error upwards.
1183    
1184    - It would probably be good to have a call to WSACleanup() when
1185      the library is unloaded (if there is such a possibility).
1186      Otherwise I think Windows will take care of this automatically
1187      when the process finishes.
1188    
1189    - I used ioctlsocket() as a replacement for ioctl() but I have
1190      no idea if that is actually the proper replacement on Windows.
1191    
1192    - All these issues are marked in the code by "FIXME" comments.
1193    
1194    We use sml/nj extensively in our products and are quite happy
1195    with it.  I hope this contribution will help you.
1196    
1197    Keep up the good work!
1198    
1199    David
1200    
1201    ----------------------------------------------------------------------
1202    Name: Matthias Blume (blume (at) tti - c (dot) org)
1203    Date: 2004/05/11 14:20:00 CDT
1204    Tag: blume-20040511-installml
1205    Description:
1206    
1207    Fixed two bugs in installml script.  (Thanks to Vesa A. Norrman for
1208    the patch.)
1209    
1210    ----------------------------------------------------------------------
1211    Name: Matthias Blume (blume (at) tti - c (dot) org)
1212    Date: 2004/05/11 14:05:00 CDT
1213    Tag: blume-20040511-nlffi-netbsd
1214    Description:
1215    
1216    Added support for nlffi under netbsd.  (Thanks to Vesa A. Norrman for
1217    the patch.)
1218    
1219    ----------------------------------------------------------------------
1220    Name: Matthias Blume (blume (at) tti - c (dot) org)
1221    Date: 2004/05/11 12:05:00 CDT
1222    Tag: blume-20040511-exports
1223    Description:
1224    
1225    As per request by Adam Chlipala <adam@hcoop.net>, extended various
1226    export lists in compiler-related .cm-files.
1227    
1228    ----------------------------------------------------------------------
1229    Name: Matthias Blume (blume (at) tti - c (dot) org)
1230    Date: 2004/05/11 11:35:00 CDT
1231    Tag: blume-20040511-allsource
1232    Description:
1233    
1234    The installer now honors the "src-smlnj" target again, although its meaning
1235    has changed from "all sources required for the compiler" to "all sources
1236    the installer knows about".  In other words, if you enable "src-smlnj"
1237    in the "targets" file, then the installer will pull in sources for
1238    everything.  (Notice that this refers to source code only.  Compiled
1239    code is still only installed for modules that were requested explicitly
1240    or which are required for other modules that were requested explicitly.)
1241    
1242    ----------------------------------------------------------------------
1243    Name: Matthias Blume (blume (at) tti - c (dot) org)
1244    Date: 2004/04/23 17:40:00 CDT
1245    Tag: blume-20040423-ieee-scan
1246    Description:
1247    
1248    Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
1249    in the exponent calculation we get INF or ZERO (depending on the mantissa
1250    and the sign of the exponent).
1251    
1252    ----------------------------------------------------------------------
1253    Name: Matthias Blume (blume (at) tti - c (dot) org)
1254    Date: 2004/04/23 10:40:00 CDT
1255    Tag: blume-20040423-ml-build
1256    Description:
1257    
1258    The ml-build script now terminates with a non-0 status when something
1259    goes wrong.
1260    
1261    ----------------------------------------------------------------------
1262    Name: Matthias Blume (blume (at) tti - c (dot) org)
1263    Date: 2004/04/22 16:35:00 CDT
1264    Tag: blume-20040422-Option
1265    Description:
1266    
1267    Made exception Option to be the same as exception Option.Option
1268    (as it should be).
1269    
1270    ----------------------------------------------------------------------
1271    Name: Allen Leung (leunga (at) reservoir (dot) com)
1272    Date: 2004/03/19 14:40:00 EST
1273    Tag: leunga-20040319-cygwin-nlffi
1274    Description:
1275    
1276    Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
1277    of SML/NJ.  The problem is that
1278    
1279       lib = dlopen(NULL, ...)
1280       f   = dlsym(lib, "malloc");
1281    
1282    does not work on Windows unless we explicitly export symbols
1283    such as 'malloc' during linking.  We fixed this by explicitly
1284    exporting the required symbols with the magic gcc incantation:
1285    
1286        -Wl,--export-all cygwin.def
1287    
1288    where cygwin.def is a file containing all the symbols that
1289    we wish to export.
1290    
1291    I suspect this is a Windows problem and we'll have to
1292    do the same (somehow with windows compilers) when
1293    we build the native win32 version with the system
1294    calls LoadLibrary/GetProcAddress.
1295    
1296    ----------------------------------------------------------------------
1297    Name: Matthias Blume (blume (at) tti - c (dot) org)
1298    Date: 2004/03/04 16:35:00 CST
1299    Tag: blume-20040304-intinf-fmt
1300    Description:
1301    
1302    Fixed problem with IntInf.fmt (sign would show up on the right instead
1303    of on the left for BIN, OCT, and HEX).
1304    
1305    ----------------------------------------------------------------------
1306    Name: Matthias Blume (blume (at) tti - c (dot) org)
1307    Date: 2004/03/04 11:25:00 CST
1308    Tag: blume-20040304-symlinks
1309    Description:
1310    
1311    Fixed problem with installer script (unix only) where bin/ml-yacc and
1312    friends pointed (via symlinks) to absolute locations instead of just
1313    .run-sml.  This was reported by Vesa A Norrman.
1314    
1315    ----------------------------------------------------------------------
1316    Name: Matthias Blume (blume (at) tti - c (dot) org)
1317    Date: 2004/02/13 14:50:00 CST
1318    Tag: Release_110_45
1319    Description:
1320    
1321    New working version (110.45). New bootfiles.
1322    
1323    ----------------------------------------------------------------------
1324    Name: Matthias Blume (blume (at) tti - c (dot) org)
1325    Date: 2004/01/26 15:15:15 CST
1326    Tag: blume-20040126-toplevel
1327    Description:
1328    
1329    Improved handling of exceptions at the interactive toplevel.
1330    
1331    ----------------------------------------------------------------------
1332    Name: Matthias Blume (blume (at) tti - c (dot) org)
1333    Date: 2004/01/26 11:25:00
1334    Tag: blume-20040126-app
1335    Description:
1336    
1337    Type of top-level "app" corrected.
1338    Added code for setting vp_limitPtrMask to Win32-specific runtime.
1339    
1340    ----------------------------------------------------------------------
1341    Name: Matthias Blume (blume (at) tti - c (dot) org)
1342    Date: 2003/11/18 17:10 CST
1343    Tag: blume-20031118-basis-fiddle
1344    Description:
1345    
1346    - changed Timer interface to what might become the spec
1347    - POSIX_FLAGS -> BIT_FLAGS according to spec
1348    - some other minor discrepancies wrt. spec eliminated
1349    
1350    ----------------------------------------------------------------------
1351    Name: Matthias Blume (blume (at) tti - c (dot) org)
1352    Date: 2003/11/06 12:00:00 CST
1353    Tag: Release_110_44
1354    Description:
1355    
1356    New working version (110.44). New bootfiles.
1357    
1358    ----------------------------------------------------------------------
1359    Name: Matthias Blume (blume (at) tti - c (dot) org)
1360    Date: 2003/11/04 11:50:00 CST
1361    Tag: blume-20031104-move-libraries
1362    Description:
1363    
1364    Eliminated the "dont_move_libraries" directive in config/targets.
1365    (The mechanism was broken and could not be fixed easily.  Moreover,
1366    there does not seem to be any reason not to move all libraries into
1367    lib during installation.  I originally implemented this directive as a
1368    backward-compatibility feature when I first introduced the new CM.
1369    Now that things have been stable for a long time and going back to the
1370    old CM is not an option, there is no reason to keep it around.)
1371    
1372    ----------------------------------------------------------------------
1373    Name: Matthias Blume (blume (at) tti - c (dot) org)
1374    Date: 2003/11/03 16:00:00 CST
1375    Tag: blume-20031103-installdir
1376    Description:
1377    
1378    Made installer honor INSTALLDIR variable again.  (Thanks to Chris
1379    Richards for pointing out the problem and providing the solution.)
1380    
1381    ----------------------------------------------------------------------
1382    Name: Matthias Blume (blume (at) tti - c (dot) org)
1383    Date: 2003/10/01 17:05:00 CDT
1384    Tag: blume-20031001-lal-mlrisc
1385    Description:
1386    
1387    MLRISC bug fix from Lal.
1388    
1389    ----------------------------------------------------------------------
1390    Name: Matthias Blume (blume (at) tti - c (dot) org)
1391    Date: 2003/09/30 16:10:00 CDT
1392    Tag: blume-20030930-primio-bat
1393    Description:
1394    
1395    1. Added openVector, nullRd, and nullWr to PRIM_IO.
1396    2. Improved .bat files (for Win32 port) to make things work under Win95.
1397       (thanks to Aaron S. Hawley for this one)
1398    
1399    ----------------------------------------------------------------------
1400    Name: Matthias Blume (blume (at) tti - c (dot) org)
1401    Date: 2003/09/26 16:05:00 CDT
1402    Tag: blume-20030926-wrappriv
1403    Description:
1404    
1405    Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
1406    
1407    ----------------------------------------------------------------------
1408    Name: Matthias Blume (blume (at) tti - c (dot) org)
1409    Date: 2003/09/26 15:00:00 CDT
1410    Tag: blume-20030926-110_43_3
1411    Description:
1412    
1413    - additional cleanup
1414    - version number bump, NEW BOOTFILES
1415    
1416    ----------------------------------------------------------------------
1417    Name: Matthias Blume (blume (at) tti - c (dot) org)
1418    Date: 2003/09/26 12:00:00 CDT
1419    Tag: blume-20030926-ppautoload
1420    Description:
1421    
1422    I modified the read-eval-print loop so that the autoloader gets
1423    invoked whenever the prettyprinter tries to look up a symbol that
1424    is not currently defined in the toplevel environment but which
1425    appears in CM's autoload registry.  As a result, we see far fewer of
1426    those ?.Foo.Bar.xxx names in the prettyprinter's output.
1427    
1428    In addition to this I tried to clean up some pieces of the Basis
1429    implementation (e.g., Socket, Word8Array) in order to prevent other
1430    instances of these ?.Foo.Bar.xxx names from being printed.
1431    
1432    The mechanism that picks names for types still needs some work, though.
1433    (Right now it seems that if there is a type A.t which is defined to
1434    be B.u, but B is unavailable at toplevel, then A.t gets printed as
1435    "?.B.u" although the perhaps more sensible solution would be to use
1436    "A.t" in this case.  In other words, the prettyprinter should follow
1437    a chain of DEFtycs not farther than there are corresponding toplevel
1438    names in the current environment.)
1439    
1440    ----------------------------------------------------------------------
1441    Name: Matthias Blume (blume (at) tti - c (dot) org)
1442    Date: 2003/09/24 16:31:00 CDT
1443    Tag: blume-20030924-installer
1444    Description:
1445    
1446    Another installer tweak:  All the ML code for the installer is now
1447    compiled during CMB.make and put into a little library called
1448    $smlnj/installer.cm.  The installation then simply invokes
1449    
1450       sml -m $smlnj/installer.cm
1451    
1452    and everything happens automagically.
1453    
1454    Win32:  ML code senses value of environment variable SMLNJ_HOME.
1455    Unix:   ML code senses values of environment variables ROOT, CONFIGDIR,
1456            and BINDIR.
1457    
1458    The new scheme guarantees that the ML code responsible for the installation
1459    is in sync with the APIs of the main system.  Also, the installer is
1460    somewhat faster because the installer script is precompiled.
1461    
1462    ----------------------------------------------------------------------
1463    Name: Matthias Blume (blume (at) tti - c (dot) org)
1464    Date: 2003/09/24 15:35:00 CDT
1465    Tag: blume-20030924-synsock
1466    Description:
1467    
1468    Added a signature SYNCHRONOUS_SOCKET to basis.cm.  This is like SOCKET
1469    but excludes all non-blocking operations.  Defined SOCKET (in Basis)
1470    and CML_SOCKET in terms of SYNCHRONOUS_SOCKET.  Removed superfluous
1471    implementations of non-blocking operations from CML's Socket
1472    structure.
1473    
1474    ----------------------------------------------------------------------
1475    Name: Matthias Blume (blume (at) tti - c (dot) org)
1476    Date: 2003/09/24 15:10:05 CDT
1477    Tag: blume-20030924-sockets
1478    Description:
1479    
1480    1. Fixed SOCKET API and implementation to match Basis spec.
1481       This required changing the internal representation of sockets to one
1482       that remembers (for each socket file descriptor) whether it is currently
1483       blocking or non-blocking.  This state is maintained lazily (i.e., a system
1484       call is made only if the state actually needs to change).
1485    
1486    2. OS-specific details of sockets were moved into separate files, thus
1487       making it possible to unify the bulk of the socket implementations
1488       between Unix and Win32.
1489    
1490    3. CML's socket API changed accordingly.
1491       (Note that we need to remove non-blocking functions from this API
1492       since they are redundant in the case of CML!)
1493    
1494    4. CML's socket implementation now makes use of non-blocking functions
1495       provided by Basis, thus removing all OS-dependent code from this part
1496       of CML.
1497    
1498    5. Changed Real64.precision from 52 to 53.  Minor cleanup in Real64 code.
1499    
1500    ----------------------------------------------------------------------
1501    Name: Matthias Blume (blume (at) tti - c (dot) org)
1502    Date: 2003/09/22 12:10:00 CDT
1503    Tag: blume-20030922-110_43_2
1504    Description:
1505    
1506    Made a new interim version and bootfiles for developer's bootstrapping
1507    convenience.
1508    
1509       110.43.2 -- NEW BOOTFILES
1510    
1511    ----------------------------------------------------------------------
1512    Name: Matthias Blume (blume (at) tti - c (dot) org)
1513    Date: 2003/09/19 15:55:00 CDT
1514    Tag: blume-20030919-cmdir
1515    Description:
1516    
1517    1. new-install.sh -> install.sh
1518    2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
1519    3. tweaked installer so that another name instead of .cm can be chosen
1520       at install time (by setting the CM_DIR_ARC environment variable
1521       during installation); once installation is complete, the name is
1522       fixed
1523    
1524    ----------------------------------------------------------------------
1525    Name: Matthias Blume (blume (at) tti - c (dot) org)
1526    Date: 2003/09/18 16:00:00 CDT
1527    Tag: blume-20030918-110_43_1
1528    Description:
1529    
1530    Made a new interim version and bootfiles for developer's bootstrapping
1531    convenience.
1532    
1533       110.43.1 -- NEW BOOTFILES
1534    
1535    ----------------------------------------------------------------------
1536    Name: Matthias Blume (blume (at) tti - c (dot) org)
1537    Date: 2003/09/18 15:20:00 CDT
1538    Tag: blume-20030918-misc
1539    Description:
1540    
1541    1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
1542       this seems to be controversial at the moment) and used those in
1543       Posix.ProcEnv.times.
1544    
1545    2. Added Time.{from,to}Nanoseconds to Time.
1546    
1547    3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
1548       For example, fromLargeInt never needs to look at more than 3 "big
1549       digits" to get its 53 bits of precision.
1550    
1551    ----------------------------------------------------------------------
1552    Name: Matthias Blume (blume (at) tti - c (dot) org)
1553    Date: 2003/09/17 16:30:00 CDT
1554    Tag: blume-20030917-real32-slices
1555    Description:
1556    
1557    Added an entry to the primitive environment
1558    (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
1559    added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
1560    
1561    Removed some of the "magic" constants in real64.sml and replaced them
1562    with code that generates these values from their corresponding
1563    integer counterparts.
1564    
1565    Made all(?) the slice-related changes to the Basis and made everything
1566    compile again...
1567    
1568    ----------------------------------------------------------------------
1569    Name: Matthias Blume (blume (at) tti - c (dot) org)
1570    Date: 2003/09/15 17:45:00 CDT
1571    Tag: blume-20030915-rbase
1572    Description:
1573    
1574    Fixed bug in Real.fromLargeInt.
1575    
1576    ----------------------------------------------------------------------
1577    Name: Matthias Blume (blume (at) tti - c (dot) org)
1578    Date: 2003/09/13 18:11:00 CDT
1579    Tag: blume-20030913-libinstall
1580    Description:
1581    
1582    Minor bugfix in config/libinstall (set anchor with path to
1583    standalone tool after installing it, otherwise libraries that
1584    need ml-lex or ml-yacc won't compile the first time the installer
1585    runs).
1586    
1587    ----------------------------------------------------------------------
1588    Name: Matthias Blume (blume (at) tti - c (dot) org)
1589    Date: 2003/09/12 11:45:00 CDT
1590    Tag: blume-20030912-various
1591    Description:
1592    
1593     - fixed bug in Real.toLargeInt
1594     - fixed bug in Posix.ProcEnv.times
1595     - changed inputLine functions to return an option
1596     - minor installer improvements / bugfixes
1597     - changed default @SMLalloc parameter for x86/celeron to 64k
1598    
1599    ----------------------------------------------------------------------
1600    Name: Matthias Blume (blume (at) tti - c (dot) org)
1601    Date: 2003/09/09 22:00:00 CDT
1602    Tag: Release_110_43
1603    Description:
1604    
1605        New working release 110.43.  New bootfiles.
1606    
1607    ----------------------------------------------------------------------
1608    Name: Matthias Blume (blume (at) tti - c (dot) org)
1609    Date: 2003/09/09 19:20:00 CDT
1610    Tag: blume-20030909-installer
1611    Description:
1612    
1613    Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
1614    Modified config/install.bat to take advantage of it.  Also modified
1615    config/install.sh (and called it config/new-install.sh) to take advantage
1616    of it on Unix systems.  (The SML code is (supposed to be) platform-
1617    independent.)
1618    
1619    The installer can now install everything under Win32
1620    as well as under *nix as long as it compiles.
1621    
1622    Other changes:
1623    
1624      - made CML compile again under Win32
1625      - made eXene compile under Win32 (by providing a fake structure UnixSock
1626        and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
1627      - fixed a bug in nowhere: it assumed that type OS.Process.status is the
1628        same as type int;  under Win32 it isn't
1629      - fixed some slice-related problems in the win32-specific parts of CML
1630      - added a functor argument "sameVol" to os-path-fn.sml in the Basis
1631        (under Win32, the volume name is case-insensitive, and the
1632        OS.Path code compares volume names for equality)
1633    
1634    ----------------------------------------------------------------------
1635    Name: Matthias Blume (blume (at) tti - c (dot) org)
1636    Date: 2003/09/08 11:55:00 CDT
1637    Tag: blume-20030908-fullpath
1638    Description:
1639    
1640    Made Win32 version of OS.FileSys.fullPath return current directory
1641    when given an empty string.  This is what the spec says, and incidentally,
1642    CM depends on it.  (CM otherwise goes into an infinite loop in certain
1643    cases when presented with the name of a non-existing .cm file.)
1644    
1645    ----------------------------------------------------------------------
1646    Name: Matthias Blume (blume (at) tti - c (dot) org)
1647    Date: 2003/09/04 16:30:00 CDT
1648    Tag: blume-20030905-slices-etc
1649    Description:
1650    
1651      1. Changed interface to vectors and arrays in Basis to match
1652         (draft) Basis spec.
1653      2. Added signatures and implementations of slices according to
1654         Basis spec.
1655      3. Edited source code throughout the system to make it compile again
1656         under 1. and 2.  (In some cases code had to be added to have it
1657         match the new signatures.)
1658      4. MLRISC should be backward-compatible: the copies of the originals
1659         of files that needed to change under 3. were retained, the .cm files
1660         check the compiler version number and use old versions when
1661         appropriate.
1662      5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
1663         dirstream -> string option (in accordance with Basis spec).
1664      6. When generating code that counts lines, ml-lex used function
1665         CharVector.foldli, taking advantage of its old interface.
1666         This has been replaced with the corresponding code from
1667         CharVectorSlice.  (html-lex must be re-lexed!)
1668      7. BitArray in smlnj-lib/Util has been extended/modified to match the
1669         new MONO_ARRAY signature.  (Do we need BitArraySlice?)
1670      8. Removed temporary additions (fromInternal, toInternal) from the
1671         (now obsolete) IntInf in smlnj-lib/Util.
1672      9. Cleaned up structure Byte.
1673     10. Added localOffset, scan, and fromString to Date (according to spec).
1674         Cleaned/corrected implementation of Date.
1675         (Still need to check for correctness; implement better canonicalizeDate.)
1676     11. Added "scan" to signature IEEE_REAL.
1677     12. Some improvements to IntInf [in particular: efficiency-hack for
1678         mod and rem when second operand is 2 (for parity checks).]
1679     13. Changed representation of type Time.time, using a single IntInf.int
1680         value counting microseconds.  This considerably simplified the
1681         implementation of structure Time.  We now support negative time
1682         values; scan and fromString handle signs.
1683     14. Functor PrimIO now takes two additional arguments (VectorSlice and
1684         ArraySlice).
1685    
1686    ----------------------------------------------------------------------
1687    Name: Matthias Blume (blume (at) tti - c (dot) org)
1688    Date: 2003/08/28 17:00:00 CDT
1689    Tag: blume-20030828-intinf
1690    Description:
1691    
1692    This is a major update which comes with a version number bump
1693    (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
1694    and an implementation of IntInf in the Basis.
1695    
1696    There are a fairly large number of related changes and updates throughout
1697    the system:
1698    
1699    Basis:
1700            - Implemented IntInf.
1701            - Made LargeInt a projection of IntInf (by filtering through INTEGER).
1702            - Added some missing Real64 operations, most notably Real.toLargeInt.
1703            - Added FixedInt as a synonym for Int32.
1704    
1705    compiler:
1706            * Added support for a built-in intinf type.
1707              - literals
1708              - pattern matching
1709              - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
1710              - overloading on literals and operations
1711    
1712            This required adding a primitive type intinf, some additional
1713            primops, and implementations for several non-trivial intinf
1714            operations in Core.  (The intinf type is completely abstract
1715            to the compiler; all operations get delegated back to the Core.)
1716    
1717            * Intinf equality is handled by polyequal.  However, the compiler
1718            does not print its usual warning in this case (since polyequal
1719            is the right thing to do there).
1720    
1721            * Improved the organization of structure InlineT.
1722    
1723            * A word about conversion primops:
1724            If conversions involving intinf do not cancel out during
1725            CPS contract, then the compiler must insert calls to Core functions.
1726            Since all core access must be resolved already during the FLINT
1727            translate phase, it would be too late a the time of CPS contract
1728            to add new Core calls.  For this reason, conversion primops
1729            for intinf carry two arguments:  1. the numeric argument that
1730            they are supposed to convert, and 2. the Core function that
1731            can help with this conversion if necessary.  If CPS contract
1732            eliminates a primop, then the associated Core function becomes
1733            dead and goes away.  Intinf conversion primops that do not get
1734            eliminated by CPS contract get rewritten into calls of their
1735            core functions by a separate, new phase.
1736    
1737    interactive system:
1738            - Control.Print.intinfDepth controls max length of intinf constants
1739            being printed. (Analogous to Control.Print.stringDepth.)
1740            - Cleanup in printutil and pputil: got rid of unused stuff and
1741            duplicates; replaced some of the code with code that makes better
1742            use of library functionality.
1743    
1744    CM:
1745            Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
1746            are no longer silent.
1747    
1748    CKIT:
1749            Fixed mismatched uses of Int32 and LargeInt.  I always decided
1750            in favor of LargeInt -- which is now the same as IntInf.
1751            CKIT-knowledgable people should check whether this is what's
1752            intended and otherwise change things back to using Int32 or
1753            FixedInt.
1754    
1755    Throughout the code:
1756            Started using IntInf.int literals and built-in operations
1757            (e.g., comparison with 0) where this seems appropriate.
1758    
1759    
1760    ----------------------------------------------------------------------
1761    Name: Dave MacQueen (dbm@cs.uchicago.edu)
1762    Date: 2003/08/13 11:36:00 CDT
1763    Tag: dbm-20030813-mcz-merge1
1764    Description:
1765    
1766    Merging changes from the mcz-branch development branch into trunk.
1767    These changes involve replacement of the emulated old prettyprinter
1768    interface with direct use of the SML/NJ Lib PP library, and fixing
1769    of a couple of bugs (895, 1186) relating to error messages.  A new
1770    prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
1771    has been added.
1772    
1773    ----------------------------------------------------------------------
1774    Name: Matthias Blume (blume (at) tti - c (dot) org)
1775    Date: 2003/08/11 15:45:00 CDT
1776    Tag: blume-20030811-windows
1777    Description:
1778    
1779    Version number bumped to 110.42.9.  NEW BOOTFILES!!!
1780    
1781        http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
1782    
1783    This patch restores SML/NJ's ability to run under win32.  There are a
1784    number of changes, including fixes for several bugs that had gone
1785    unnoticed until now:
1786    
1787      - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
1788        trying to run the win32 version from within cygwin.)
1789    
1790      - There are a number of simple .bat scripts that substitute for their
1791        corresponding Unix shell-scripts.  (See below.)
1792    
1793      - The internals of ml-build have been modified slightly.  The main
1794        difference is that instead of calling ".link-sml" (or link-sml.bat)
1795        using OS.Process.system, the ML process delegates this task back
1796        to the script.  Otherwise problems arise in mixed environments such
1797        as Cygwin where scripts look and work like Unix scripts, but
1798        where OS.Process.system cannot run them.
1799    
1800      - In CM, the srcpath pickler used native pathname syntax -- which
1801        is incorrect in the case of cross-compilation.  The new pickle format
1802        is independent of platform-specific naming conventions.
1803    
1804      - Path configuration files (such as lib/pathconfig) can now choose
1805        between native and standard syntax.  Placing a line of the form
1806    
1807            standard!
1808    
1809        into the file causes all subsequent paths to be interpreted using
1810        CM standard pathname syntax (= Unix conventions); a line
1811    
1812            native!
1813    
1814        switches back to native style.  This was needed so that
1815        path config files can be written portably, see src/system/pathconfig.
1816    
1817      - Runtime system:
1818    
1819          - win32-filesys.c:  get_file_time and set_file_time now
1820            access modification time, not creation time.
1821    
1822          - I/O code made aware of new array representation.
1823    
1824          - Bug fixes in X86.prim.masm.
1825    
1826       - src/system/makeml made aware of win32. (For use under cygwin
1827            and other Unix-environments for windows.)
1828    
1829       - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
1830         which caused BinIO.inputAll to fail consistently.
1831    
1832    .bat scripts:
1833    
1834       Windows .bat scripts assume that SMLNJ_HOME is defined.
1835    
1836       - sml.bat, ml-yacc.bat, ml-lex.bat:  Driver scripts for standalone
1837         applications (sml, ml-yacc, ml-lex).
1838       - ml-build.bat: analogous to ml-build.
1839       - config\install.bat:  Analogous to config/install.sh.  This requires
1840         that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
1841         (nmake etc. must be on the path, and vcvars32 must have been run.)
1842         Moreover, sources for ml-lex and ml-yacc need to exist under src,
1843         and the bootfile hierarchy must have been unpacked under
1844         sml.boot.x86-win32.
1845         The script is very primitive and does a poor job at error checking.
1846         It only installs the base system, ml-lex, and ml-yacc.  No other
1847         libraries are being installed (i.e., you get only those that
1848         are part of the compiler.)
1849       - link-sml.bat:  analogous to .link-sml, but not currently used
1850    
1851    Unrelated bug fixes:
1852    
1853      - ml-nlffigen now exports structures ST_* corresponding to incomplete
1854        types.
1855      - Added getDevice to PP/src/pp-debug-fn.sml.  (Would not compile
1856        otherwise.)
1857    
1858    ----------------------------------------------------------------------
1859    Name: Dave MacQueen (macqueen@cs.uchicago.edu)
1860    Date: 2003/06/17
1861    Tag: macqueen-20030617-bug895
1862    Description:
1863    
1864    Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
1865    Tag will be used for new development branch (mcz-branch) for
1866    use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
1867    
1868    ----------------------------------------------------------------------
1869    Name: Matthias Blume (blume (at) tti - c (dot) org)
1870    Date: 2003/05/27 16:55:00 CDT
1871    Tag: blume-20030527-polyeq
1872    Description:
1873    
1874    Tried to eliminated most cases of polymorphic equality.
1875    
1876    ----------------------------------------------------------------------
1877    Name: Matthias Blume (blume (at) tti - c (dot) org)
1878    Date: 2003/05/21 17:45:00 CDT
1879    Tag: blume-20030517-complete
1880    Description:
1881    
1882    Two changes:
1883    
1884      1. Added a flag for controlling whether non-exhaustive bindings will
1885         be treated as errors (default is false).
1886      2. Cleaned up the *entire* source tree so that CMB.make goes through
1887         without a single non-exhaustive match- or bind warning.
1888    
1889    ----------------------------------------------------------------------
1890    Name: Matthias Blume (blume (at) tti - c (dot) org)
1891    Date: 2003/05/17 10:20:00 CDT
1892    Tag: blume-20030517-absyn
1893    Description:
1894    
1895    1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
1896    
1897       This mainly affects the quality of error messages.  However, some
1898       of the code is now more straightforward than before. (Treatment of
1899       the above four constructs in translate.sml is much simpler than
1900       the "macro-expansion" that was going on before.  Plus, the mach-
1901       compiler no longer gets invoked just to be able to compile an
1902       if-expression.)
1903    
1904    2. The ErrorMsg.Error exception is now caught and absorbed by the
1905       interactive loop.
1906    
1907    ----------------------------------------------------------------------
1908    Name: Allen Leung
1909    Date: 2003/05/16 13:05:00 CDT
1910    Tag: leunga-20030516-cygwin-runtime
1911    Description:
1912    
1913        Ported the runtime system to cygwin, which uses the unix
1914    x86-unix bin files.  Missing/buggy features:
1915    
1916       o getnetbyname, getnetbyaddr: these functions seem to be missing in
1917         the Cygwin library.
1918       o Ctrl-C handling may be flaky.
1919       o Windows system calls and Windows I/O are not supported.
1920    
1921       A new set of binfiles is located at:
1922    
1923         http://www.dorsai.org/~leunga/boot.x86-unix.tgz
1924    
1925       This is only needed for bootstrapping the cygwin version of smlnj.
1926       Other x86 versions can use the existing binfiles.
1927    
1928    ----------------------------------------------------------------------
1929    Name: Matthias Blume
1930    Date: 2003/04/08 15:42:00 CDT
1931    Tag: blume-20030408-listpair
1932    Description:
1933    
1934    1. Added a target 'mlrisc' to installer.
1935    
1936    2. Added missing elements to structure ListPair.
1937    
1938    ----------------------------------------------------------------------
1939    Name: Allen Leung
1940    Date: 2003/01/07 10:40:00 EST
1941    Tag: leunga-20030107-int-rem
1942    Description:
1943    
1944    Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
1945    The arguments to the SUBL instruction were swapped.
1946    
1947    ----------------------------------------------------------------------
1948    Name: Matthias Blume
1949    Date: 2002/12/12 16:25:00 EST
1950    Tag: blume-20021212-risc-ra
1951    Description:
1952    
1953    Fixed a serious bug in the rewrite code for FP spilling/reloading that
1954    sent the RA into an infinite loop when floating point registers get
1955    spilled.  (Because of this bug, e.g., nucleic stopped compiling between
1956    110.37 and 110.38.)
1957    There was another set of potential problems related to the handling of
1958    MLRISC annotations (but those did not yet cause real problems, apparently).
1959    
1960    ----------------------------------------------------------------------
1961    Name: Matthias Blume
1962    Date: 2002/12/06 22:40:00 EST
1963    Tag: blume-20021206-cm-fileid
1964    Description:
1965    
1966    Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
1967    This fixes the problem of CM getting confused by files that suddenly
1968    change their identity (e.g., by getting unlinked and recreated by some
1969    text editor such as vi).  There might be a better/cheaper/cleaner way
1970    of doing this, but for now this will have to do.
1971    
1972    ----------------------------------------------------------------------
1973    Name: Matthias Blume
1974    Date: 2002/10/28 09:50:00 EST
1975    Tag: blume-20021028-typecheck
1976    Description:
1977    
1978    Exported structure Typecheck from $smlnj/viscomp/core.cm.
1979    
1980    ----------------------------------------------------------------------
1981    Name: Matthias Blume
1982    Date: 2002/10/17 09:10:00 EDT
1983    Tag: Release_110_42
1984    Description:
1985    
1986    In good old tradition, there has been a slight hiccup so that we have
1987    to patch 110.42 after the fact.   The old release tag has been replaced
1988    (see below).
1989    
1990    The change solves a problem with two competing approaches the
1991    configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
1992    each other's way.
1993    
1994    This change only affects the runtime system code and the installer script.
1995    (No new bootfiles.)
1996    
1997    ----------------------------------------------------------------------
1998    Name: Matthias Blume
1999    Date: 2002/10/16 12:00:00 EDT
2000    Tag: Release_110_42_removed
2001    Description:
2002    
2003    New working release.  New bootfiles.
2004    
2005    ----------------------------------------------------------------------
2006    Name: Matthias Blume
2007    Date: 2002/10/10 13:10:00 EDT
2008    Tag: blume-20021010-ppc-divs
2009    Description:
2010    
2011    The mltree operator DIVS must be implemented with an overflow check on
2012    the PPC because the hardware indicates divide-by-zero using "overflow" as
2013    well.
2014    
2015    ----------------------------------------------------------------------
2016    Name: Matthias Blume
2017    Date: 2002/07/23 11:45:00
2018    Tag: blume-20020723-smlnj-home
2019    Description:
2020    
2021    Sml now senses the SMLNJ_HOME environment variable.  If this is set,
2022    then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
2023    CM_PATHCONFIG is also set), the path configuration file is assumed
2024    to be in $SMLNJ_HOME/lib/pathconfig.  This way one can easily move
2025    the entire tree to some other place and everything will "just work".
2026    
2027    (Companion commands such as ml-build and ml-makedepend also sense this
2028    variable.)
2029    
2030    ----------------------------------------------------------------------
2031    Name: Matthias Blume
2032    Date: 2002/07/12 21:19:00 EDT
2033    Tag: blume-20020712-liveness
2034    Description:
2035    
2036    Exported two useful "step" functions from liveness module (MLRISC).
2037    
2038    ----------------------------------------------------------------------
2039    Name: Matthias Blume
2040    Date: 2002/07/05 16:00 EDT
2041    Tag: Release_110_41
2042    Description:
2043    
2044    New working release.  New bootfiles.
2045    
2046    ----------------------------------------------------------------------
2047    Name: Matthias Blume
2048    Date: 2002/07/05 10:25:00 EDT
2049    Tag: blume-20020705-btimp
2050    Description:
2051    
2052    Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
2053    other clients can set up backtracing support.
2054    
2055    ----------------------------------------------------------------------
2056    Name: Matthias Blume
2057    Date: 2002/06/25 17:23:00 EDT
2058    Tag: blume-20020625-fpmax
2059    Description:
2060    
2061    Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
2062    case.  (The sense of the isNaN test was reversed -- which made min and
2063    max always return their first argument.)
2064    
2065    ----------------------------------------------------------------------
2066    Name: Matthias Blume
2067    Date: 2002/06/11
2068    Tag: blume-20020611-unixpath
2069    Description:
2070    
2071    Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
2072    
2073    ----------------------------------------------------------------------
2074    Name: Matthias Blume
2075    Date: 2002/06/10 16:35:00 EDT
2076    Tag: blume-20020610-ieeereal
2077    Description:
2078    
2079    I back-ported my implementation of IEEEReal.fromString from the
2080    idlbasis-devel branch so that we can test it.
2081    
2082    Another small change is that ppDec tries to give more information
2083    than just "<sig>" in the case of functors.  However, this code is
2084    broken in some mysterious way if the functor's body's signature
2085    has not been declared by ascription but gets inferred from the
2086    implementation.  This needs fixing...
2087    
2088    ----------------------------------------------------------------------
2089    Name: Matthias Blume
2090    Date: 2002/05/31
2091    Tag: blume-20020531-btrace-mode
2092    Description:
2093    
2094    Resurrected SMLofNJ.Internals.BTrace.mode.  (It accidentally fell by
2095    the wayside when I switched over to using Controls everywhere.)
2096    
2097    ----------------------------------------------------------------------
2098    Name: Lal George
2099    Date: 2002/05/23 12:21:40 EDT
2100    Tag: george-20020523-visual-labels
2101    Description:
2102    
2103    Labels are now displayed in the graphical output to make
2104    the fall-through and target blocks obvious.
2105    
2106    ----------------------------------------------------------------------
2107    Name: Matthias Blume
2108    Date: 2002/05/22 11:03:00 EDT
2109    Tag: blume-20020522-shrink
2110    Description:
2111    
2112    John tweaked yesterday's fix for 1131 to handle an out-of-memory
2113    situation that comes up when allocating huge arrays.
2114    
2115    ----------------------------------------------------------------------
2116    Name: Matthias Blume
2117    Date: 2002/05/21 16:00:00 EDT
2118    Tag: Release_110_40
2119    Description:
2120    
2121    New working release (110.40).  New bootfiles.
2122    
2123    [Also: John Reppy fixed GC bug 1131.]
2124    
2125    ----------------------------------------------------------------------
2126    Name: Matthias Blume
2127    Date: 2002/05/21 12:35:00 EDT
2128    Tag: blume-20020521-cmdoc
2129    Description:
2130    
2131    CM documentation update.
2132    
2133    ----------------------------------------------------------------------
2134    Name: Matthias Blume
2135    Date: 2002/05/21 10:55:00 EDT
2136    Tag: blume-20020521-misc
2137    Description:
2138    
2139    - John tweaked runtime to be silent on heap export (except when
2140      GC messages are on).
2141    - I added a few more things (cross-compiling versions of CMB) to
2142      config/preloads (as suggestions).
2143    
2144    ----------------------------------------------------------------------
2145    Name: Matthias Blume
2146    Date: 2002/05/20 22:25:00 EDT
2147    Tag: blume-20020520-controls
2148    Description:
2149    
2150    - Added ControlUtil structure to control-lib.cm.
2151    - Use it throughout.
2152    - Used Controls facility to define MLRISC controls (as opposed to
2153      registering MLRISC control ref cells with Controls after the fact)
2154    - Fixed messed-up controls priorities.
2155    
2156    * Removed again all the stuff from config/preloads that one wouldn't
2157      be able to preload at the time the initial heap image is built.
2158      (Many libraries, e.g., CML, do not exist yet at this time.  The
2159       only libraries that can be preloaded via config/preloads are those
2160       that come bundled with the bootfiles.)
2161    
2162    ----------------------------------------------------------------------
2163  Name: Matthias Blume  Name: Matthias Blume
2164  Date: 2002/05/20 10:59:00 EDT  Date: 2002/05/20 10:59:00 EDT
2165  Tag: blume-20020520-preloads  Tag: blume-20020520-preloads

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