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Diff of /sml/trunk/HISTORY

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revision 1629, Thu Sep 23 22:38:06 2004 UTC revision 1838, Fri Oct 14 21:24:05 2005 UTC
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13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
17    Date: 2005/10/14
18    Description:
19    Add Zhong Shao's fix for datatype equality functions.
20    
21    ----------------------------------------------------------------------
22    Name: Allen Leung (leunga (at) reservoir (dot) com)
23    Date: 2005/10/14 12:30:00 EST
24    Tag: leunga-20051014-x86-spill
25    Description:
26    
27    Bug fix a bug found by Carl Hauser.
28    There was a typo in the reload code for FCMP in x86SpillInstr.sml.
29    
30    ----------------------------------------------------------------------
31    Name: Allen Leung (leunga (at) reservoir (dot) com)
32    Date: 2005/10/14 11:15:00 EST
33    Tag: leunga-20051014-x86-asm
34    Description:
35    
36    Removed some debugging code in file x86Asm.sml.
37    The function emit_operand was printing out debugging output.
38    
39    ----------------------------------------------------------------------
40    Name: John Reppy
41    Date: 2005/07/27
42    Tag:
43    Description:
44    
45    Fixed ml-lex to recognize "\r" as representing carriage return.
46    
47    ----------------------------------------------------------------------
48    Name: John Reppy
49    Date: 2005/07/27
50    Tag:
51    Description:
52    
53    Fixed ml-yacc to work on files with non-native end-of-line
54    encodings (e.g., Windows text file on a Unix system).
55    
56    ----------------------------------------------------------------------
57    Name: John Reppy
58    Date: 2005/07/20
59    Tag:
60    Description:
61    
62    Added changes from Dominic Evans (oldmanuk (at) gmail (dot) com)
63    to support HPUX 11.
64    
65    ----------------------------------------------------------------------
66    Name: John Reppy
67    Date: 2005/07/06
68    Tag:
69    Description:
70    
71    Changes to the SML/NJ library.  See smlnj-lib/CHANGES for details.
72    
73    ----------------------------------------------------------------------
74    Name: Matthias Blume (blume (at) tti - c (dot) org)
75    Date: 2005/07/06 00:45:00 CDT
76    Tag: blume-20050706-slice-copy
77    Description:
78    
79    Fixed reversed logic for deciding whether to "copy up" or "copy down"
80    in *-array-slice.sml.
81    
82    ----------------------------------------------------------------------
83    Name: Allen Leung (leunga (at) reservoir (dot) com)
84    Date: 2005/05/31 17:00:00 EST
85    Tag: leunga-20050531-cygwin-fault-2
86    Description:
87    
88    A typo in the cygwin code fixed.
89    
90    ----------------------------------------------------------------------
91    Name: Allen Leung (leunga (at) reservoir (dot) com)
92    Date: 2005/05/31 16:47:00 EST
93    Tag: leunga-20050531-cygwin-fault
94    Description:
95    
96    Updated Cygwin's fault/signal handling to match the Windows version.
97    Updated the export list.
98    
99    ----------------------------------------------------------------------
100    Name: Matthias Blume (blume (at) tti - c (dot) org)
101    Date: 2005/05/18 13:35:00 CDT
102    Tag: Release_110_54
103    Description:
104    
105    New working version (110.54).  NEW BOOTFILES!
106    
107    ----------------------------------------------------------------------
108    Name: Matthias Blume (blume (at) tti - c (dot) org)
109    Date: 2005/05/18 11:58:00 CDT
110    Tag: blume-20050518-installer
111    Description:
112    
113    Added support scripts for Mac OS X PackageMaker and modified
114    config/install.sh so that it supports re-dumping a heap image
115    after customization.
116    
117    ----------------------------------------------------------------------
118    Name: Matthias Blume (blume (at) tti - c (dot) org)
119    Date: 2005/05/18 10:55:00 CDT
120    Tag: blume-20050518-realdiv-noovld
121    Description:
122    
123    Un-overloaded / to work around bug in overloading resolution code.
124    
125    ----------------------------------------------------------------------
126    Name: Matthias Blume (blume (at) tti - c (dot) org)
127    Date: 2005/05/16 23:50:00 CDT
128    Tag: blume-20050516-redump-heap
129    Description:
130    
131    Added mechanism for re-creating a heap file for the interactive system
132    after configuration variables have been changed.
133    
134       CM.redump_heap : string -> unit
135    
136    This is much like SMLofNJ.exportML, but starting from the resulting
137    heap does not return to the caller of CM.redump_heap but
138    restarts the interactive system from scratch.  The original call of
139    CM.redump_heap does not return but ends the interactive session.
140    Thus, CM.redump_heap is a lot like SMLofNJ.exportFn.
141    
142    Internally, redump_heap winds the dynamic execution context back to
143    the point where the original heap image was created and re-executes
144    the heap image generation code in the boot code.
145    
146    ----------------------------------------------------------------------
147    Name: Matthias Blume (blume (at) tti - c (dot) org)
148    Date: 2005/05/09 21:55:00 CDT
149    Tag: blume-20050509-word64
150    Description:
151    
152    Added a hack to the existing hack known as Word64 to make fromString
153    behave correctly.  I am still not sure whether Word64.scan will work
154    as specified with respect to the interaction of radix and prefix.
155    
156    ----------------------------------------------------------------------
157    Name: Allen Leung (leunga (at) reservoir (dot) com)
158    Date: 2005/05/04 11:50:00 EST
159    Tag: leunga-20050504-checkgc
160    Description:
161    
162    Added a gc protocol checking phase.  This phase is enabled with
163    the flag "check-gc".  "debug-check-gc" turns on the verbose mode.
164    
165    ----------------------------------------------------------------------
166    Name: Matthias Blume (blume (at) tti - c (dot) org)
167    Date: 2005/05/04 10:45:00 CDT
168    Tag: blume-20050504-intinf
169    Description:
170    
171    Fixed a bug in the implementation of div and mod for IntInf.
172    Thanks to Neophytos Michael for reporting the problem.
173    
174    ----------------------------------------------------------------------
175    Name: Matthias Blume (blume (at) tti - c (dot) org)
176    Date: 2005/05/04 10:35:00 CDT
177    Tag: blume-20050504-join
178    Description:
179    
180    Added a "join" combinator to the ParserComb module in smlnj-lib.cm.
181    
182    ----------------------------------------------------------------------
183    Name: Matthias Blume (blume (at) tti - c (dot) org)
184    Date: 2005/02/28 23:40:00 CST
185    Tag: blume-20050228-mVar
186    Description:
187    
188    Fixed serious bug (brown paper bag variety) in new implementation of
189    structure Atom in CML.  (I had accidentally used a mailbox instead of
190    an mvar, leaving the door open for races.)
191    
192    ----------------------------------------------------------------------
193    Name: Matthias Blume (blume (at) tti - c (dot) org)
194    Date: 2005/02/25 15:00:00 CST
195    Tag: Release_110_53
196    Description:
197    
198    New working version (110.53).  NEW BOOTFILES!
199    
200    ----------------------------------------------------------------------
201    Name: Matthias Blume (blume (at) tti - c (dot) org)
202    Date: 2005/02/25 14:50:00 CST
203    Tag: blume-20050225-susp
204    Description:
205    
206    Brought back SMLofNJ.Susp.  The underlying suspension type is the one
207    implemented in Core -- which means that it is the same as the one used
208    by the lazy extension.
209    
210    ----------------------------------------------------------------------
211    Name: Matthias Blume (blume (at) tti - c (dot) org)
212    Date: 2005/02/24 16:50:00 CST
213    Tag: blume-20050224-cml-atom
214    Description:
215    
216    Simpler and at the same time more general implementation of structure
217    Atom in CML.
218    
219    ----------------------------------------------------------------------
220    Name: Matthias Blume (blume (at) tti - c (dot) org)
221    Date: 2005/02/15 17:35:00 CST
222    Tag: blume-20050215-tools
223    Description:
224    
225    Created new "tools" directory under "src" and moved "TraceDebugProf"
226    there.
227    
228    ----------------------------------------------------------------------
229    Name: Matthias Blume (blume (at) tti - c (dot) org)
230    Date: 2005/02/10 17:55:00 CST
231    Tag: blume-20050210-longlong
232    Description:
233    
234    Implemented "long long" arguments and results for NLFFI.  (Only the
235    PPC/MacOS implementation is complete, the other backends still need to
236    be updated.)
237    
238    ----------------------------------------------------------------------
239    Name: Matthias Blume (blume (at) tti - c (dot) org)
240    Date: 2005/01/24 17:40:00 CST
241    Tag: blume-20050124-mlyacc
242    Description:
243    
244    Minor cleanup in ML-Yacc rule printing mechanism.  This should fix a
245    problem with certain "as" patterns which previously got rendered
246    using incorrect syntax.
247    
248    ----------------------------------------------------------------------
249    Name: Matthias Blume (blume (at) tti - c (dot) org)
250    Date: 2005/01/18 12:00:00 CST
251    Tag: blume-20050118-profile
252    Description:
253    
254    Made time profiling code (interrupt handler) in runtime system aware
255    of new array representation.
256    
257    ----------------------------------------------------------------------
258    Name: Matthias Blume (blume (at) tti - c (dot) org)
259    Date: 2005/01/14 18:00:00 CST
260    Tag: blume-20050114-heap2exec
261    Description:
262    
263    Implemented new (but still experimental) heap2exec facility.  This is
264    tested under Mac OS X and should work under Linux (will test shortly).
265    It will probably also work on the Sparc (will test some time later).
266    
267      - removed old "HACKED_STANDALONE" hack from runtime
268    
269    To be able to test this, uncomment the request for "heap2asm" in
270    config/targets prior to installation.  (Notice that this is different
271    from "heap2exec" mentioned below.  Not a typo.)
272    
273    To perform an actual test, run the command
274    
275       $ bin/heap2exec heapfile execfile
276    
277    (You can put heap2exec on your shell's path.)
278    
279    For example, run
280    
281      $ bin/heap2exec bin/.heap/ml-yacc.ppc-darwin mly
282    
283    This will create a standalone executable called "mly" which you can
284    then invoke directly as a command.
285    
286    ----------------------------------------------------------------------
287    Name: Matthias Blume (blume (at) tti - c (dot) org)
288    Date: 2005/01/07 11:44:00 CST
289    Tag: blume-20050107-mlstring
290    Description:
291    
292    fixed off-by-one error in ML_STRING macro (globals.c)
293    
294    ----------------------------------------------------------------------
295    Name: Matthias Blume (blume (at) tti - c (dot) org)
296    Date: 2004/12/23 18:00:00 CST
297    Tag: blume-20041223-santa
298    Description:
299    
300    Made ml-build script "smarter" (but only very little).
301    
302    ----------------------------------------------------------------------
303    Name: Matthias Blume (blume (at) tti - c (dot) org)
304    Date: 2004/12/21 15:05:00 CST
305    Tag: blume-20041221-longlong
306    Description:
307    
308    * Implemented access to signed and unsigned long long data in NLFFI.
309    (The parameter-passing part of the picture has not complete. But
310    data structure access seems to work.)
311    
312    * Fixed CM's incorrect assumption that the PPC is little-endian.
313      (On the Mac, it is big-endian.  And that's currently our only
314      PPC platform.)
315    
316    ----------------------------------------------------------------------
317    Name: Matthias Blume (blume (at) tti - c (dot) org)
318    Date: 2004/12/21 12:50:00 CST
319    Tag: blume-20041221-memory
320    Description:
321    
322    Some cleanup in the $c/memory.cm library: separated some concerns by
323    moving allocation code and memory access code each into their own
324    files.
325    
326    ----------------------------------------------------------------------
327    Name: Allen Leung (leunga (at) reservoir (dot) com)
328    Date: 2004/12/17 16:12:00 EST
329    Tag: leunga-20041217-cygwin-smlnj-home
330    Description:
331    
332        The Unix I/O library of SML/NJ on cygwin does not understand
333    Windows style pathname, so problems arise when SMLNJ_HOME is set
334    to a Windows style pathname.  _run-sml now converts SMLNJ_HOME
335    to a POSIX pathname on cygwin.
336    
337    ----------------------------------------------------------------------
338    Name: Matthias Blume (blume (at) tti - c (dot) org)
339    Date: 2004/12/16 13:35:00 CST
340    Tag: Release_110_52
341    Description:
342    
343    Last-minute changes incorporated into 110.52.  Release tag moved.
344    
345    The changes:
346       - HashString.hashString' -> HashString.hashSubstring
347       - bug fix in UnivariateStats
348    
349    ----------------------------------------------------------------------
350    Name: Matthias Blume (blume (at) tti - c (dot) org)
351    Date: 2004/12/15 23:40:00 CST
352    Tag: blume-20041215-hashSubstring
353    Description:
354    
355    - HashString.hashString' -> HashString.hashSubstring
356    - corresponding changes in atom.sml
357    - "de-compressed" (aka. un-obfuscated) code for UnivariateStats and
358      added some comments
359    
360    ----------------------------------------------------------------------
361    Name: Matthias Blume (blume (at) tti - c (dot) org)
362    Date: 2004/12/15 15:30:00 CST
363    Tag: (Release_110_52)
364    Description:
365    
366    New working version (110.52).  NEW BOOTFILES!
367    
368    ----------------------------------------------------------------------
369    Name: Matthias Blume (blume (at) tti - c (dot) org)
370    Date: 2004/12/15 12:45:00 CST
371    Tag: blume-20041215-spaces
372    Description:
373    
374    More on the space problem (this time for Win32).
375    
376    ----------------------------------------------------------------------
377    Name: Matthias Blume (blume (at) tti - c (dot) org)
378    Date: 2004/12/14 17:30:00 CST
379    Tag: blume-20041214-spaces
380    Description:
381    
382    Hacked some of the scripts (in particular: the installer) to cope with
383    spaces in filenames a bit better.  But beware: the current "solution"
384    is likely still full of bugs and inherently incomplete.  (We need to
385    do away with those shell scripts for a comprehensive solution.)
386    
387    ----------------------------------------------------------------------
388    Name: Matthias Blume (blume (at) tti - c (dot) org)
389    Date: 2004/12/13 14:45:00 CST
390    Tag: blume-20041213-ml-makedepend
391    Description:
392    
393    Fixed bug in code for ml-makedepend.
394    
395    ----------------------------------------------------------------------
396    Name: Matthias Blume (blume (at) tti - c (dot) org)
397    Date: 2004/12/09 16:30:00 CST
398    Tag: blume-20041209-statistics
399    Description:
400    
401    Added two simple but potentially useful statistics modules to SML/NJ Library.
402    (See CHANGES file there.)
403    
404    ----------------------------------------------------------------------
405    Name: Matthias Blume (blume (at) tti - c (dot) org)
406    Date: 2004/12/01 16:50:00 CST
407    Tag: blume-20041201-atom
408    Description:
409    
410    smlnj-lib:
411    
412      Added function HashString.hashString' for substrings.
413      Hand-inlined CharVector.foldl into HashString (for speed).
414      Modified implementation of structure Atom to avoid extracting
415      strings from substrings unless necessary.
416      (Also see CHANGES file for smlnj-lib.)
417    
418    ----------------------------------------------------------------------
419    Name: Matthias Blume (blume (at) tti - c (dot) org)
420    Date: 2004/11/24 22:15:00 CST
421    Tag: blume-20041124-cml
422    Description:
423    
424    Made sure CML compiles when Position = Int64.
425    
426    ----------------------------------------------------------------------
427    Name: Matthias Blume (blume (at) tti - c (dot) org)
428    Date: 2004/11/24 14:30:00 CST
429    Tag: blume-20041124-position
430    Description:
431    
432    The compiler can now be compiled in a mode that makes structure Position
433    equal to Int64.  The default, however, is unchanged (Position = Int31)
434    for the time being.
435    
436    To enable 64-bit positions, use the following procedure:
437    
438    1. Start sml
439    2. Autoload $smlnj/cmb.cm (if not already autoloaded)
440    3. Type
441          #set (CMB.symval "USE_64_BIT_POSITIONS") (SOME 1);
442    4. Run CMB.make() as usual.
443    
444    This is barely tested.  The only test so far was a little SML program
445    counting the number of characters in an 8-gigabyte file by
446    reading it character-by-character.  That test was successful.
447    
448    In support of 64-bit positions, a number of new functions have been
449    added to the runtime system.
450    
451    ----------------------------------------------------------------------
452    Name: Matthias Blume (blume (at) tti - c (dot) org)
453    Date: 2004/11/23 14:45:00 CST
454    Tag: blume-20041123-useFile
455    Description:
456    
457    Fixed a problem with unhelpful error messages related to problems with
458    .cm- or .sml files that appear as part of the sml command line.
459    
460    ----------------------------------------------------------------------
461    Name: Matthias Blume (blume (at) tti - c (dot) org)
462    Date: 2004/11/18 15:40:00 CST
463    Tag: Release_110_51
464    Description:
465    
466    New working version (110.51).  NEW BOOTFILES!
467    
468    ----------------------------------------------------------------------
469    Name: Matthias Blume (blume (at) tti - c (dot) org)
470    Date: 2004/11/18 15:35:00 CST
471    Tag: <none>
472    Description:
473    
474    Enabled dlopen and friends for FreeBSD (as recommended by Johannes 5
475    Joemann).
476    
477    ----------------------------------------------------------------------
478    Name: Allen Leung (leunga (at) reservoir (dot) com)
479    Date: 2004/11/17 16:05:21 EST 2004
480    Tag: leunga-20041117-mlrisc-live-kill
481    Description:
482    
483       Added support for MLTree constructs LIVE and KILL
484    to all the architectures.
485    
486    ----------------------------------------------------------------------
487    Name: Matthias Blume (blume (at) tti - c (dot) org)
488    Date: 2004/11/13 00:20:00 CST
489    Tag: blume-20041113-versiontool
490    Description:
491    
492    - Stripped down the versiontool: It now only handles the version number.
493      The date string is generated at bootstrap time (during makeml).
494    
495    - In a previous commit, fixed a minor issue with how polyequal is being
496      translated.  In particular, the code now "looks through" abstractions.
497      This results in slightly fewer polyEqual warnings and hopefully slightly
498      more efficient code.  Important examples for where this matters are
499      the new int64 and word64 types.
500    
501    ----------------------------------------------------------------------
502    Name: Matthias Blume (blume (at) tti - c (dot) org)
503    Date: 2004/11/12 00:30:00 CST
504    Tag: blume-20041112-int64
505    Description:
506    
507    Structure Int64 fully hooked in.  (The implementation is not very
508    efficient, though.)
509    
510    ----------------------------------------------------------------------
511    Name: Matthias Blume (blume (at) tti - c (dot) org)
512    Date: 2004/11/11 17:30:00 CST
513    Tag: blume-20041111-more64
514    Description:
515    
516    All the pieces of Word64 are now there, with the exception of the
517    conversions from and to LargeWord. (Eventually these need to be identities,
518    but for the time being they don't even make sense because LargeWord is
519    32-bit wide.)
520    
521    Also started to add similar support for Int64, but major pieces of that
522    are still missing.
523    
524    ----------------------------------------------------------------------
525    Name: Matthias Blume (blume (at) tti - c (dot) org)
526    Date: 2004/11/11 00:15:00 CST
527    Tag: blume-20041111-word64
528    Description:
529    
530    Structure Word64 is now (almost) complete, word literals and patterns
531    seem to work.  There are a few odd pieces missing.  In particular,
532    I didn't do the {from,to}LargeWord parts because LargeWord is still Word32
533    at the moment.
534    
535    Making Word64 official would mean that LargeWord becomes Word64.  But
536    this requires extreme care because most word-word conversions have to
537    go through LargeWord, so making a mistake means loss of efficiency or
538    worse.  Eventually there will be a solution similar to (but actually
539    simpler than) what I did with IntInf.
540    
541    ----------------------------------------------------------------------
542    Name: Matthias Blume (blume (at) tti - c (dot) org)
543    Date: 2004/11/10 18:12:00 CST
544    Tag: blume-20041110-64bit
545    Description:
546    
547    More 64-bit hacking (but still not even half-way there yet).
548    Also, some assorted improvements to the handling of 8-bit words.
549    
550    ----------------------------------------------------------------------
551    Name: Matthias Blume (blume (at) tti - c (dot) org)
552    Date: 2004/11/09 17:50:00 CST
553    Tag: <none>
554    Description:
555    
556    Started adding some infrastructure for supporting 64-bit int- and
557    word-types.  (Still in its very early stages.)
558    
559    ----------------------------------------------------------------------
560    Name: Matthias Blume (blume (at) tti - c (dot) org)
561    Date: 2004/10/28 10:45:00 CDT
562    Tag: Release_110_50
563    Description:
564    
565    New working version (110.50).  NEW BOOTFILES!
566    
567                 =====================
568    
569    Also:
570    
571      - Changend config/srcarchiveurl from a file just
572        containing the URL string into a file containing
573        shell script code.  The code has access to the $VERSION variable.
574      - Made corresponding changes to config/install.sh and config/unpack.
575      - Default contents of config/srcarchiveurl uses $VERSION and
576        normally does not have to be edited to reflect a version change.
577    
578      (As a result, a version change can be done by just editing
579       config/version, the rest is now automatic.)
580    
581    ----------------------------------------------------------------------
582    Name: Matthias Blume (blume (at) tti - c (dot) org)
583    Date: 2004/10/27 17:50:00 CDT
584    Tag: blume-20041027-btrace-msg
585    Description:
586    
587    BackTrace.monitor now also reports the source of the exception that
588    triggered the trace.
589    
590    ----------------------------------------------------------------------
591    Name: Matthias Blume (blume (at) tti - c (dot) org)
592    Date: 2004/10/27 17:20:00 CDT
593    Tag: blume-20041027-x86-c-calls
594    Description:
595    
596    This is the HISTORY entry for two earlier commits, both concerning
597    the x86 c-calls code in MLRISC:
598    
599      - added a missing LOAD in the code that deals with struct arguments
600      - made sure the caller does not add the wrong number of bytes to the
601        stack pointer after a call of a function returning a struct
602        (the callee already pops the implicit argument which points to
603         the space reserved for the result)
604    
605    ----------------------------------------------------------------------
606    Name: Allen Leung (leunga (at) reservoir (dot) com)
607    Date: 2004/10/24 14:00:00 EST
608    Tag: leunga-20041024-x86-gas-fucomip
609    Description:
610    
611       John discovered a bug in the syntax of fucomip.
612       The opcodes FU?COMIP? have been changed to
613    
614           fu?comip? %st(i), %st
615    
616    ----------------------------------------------------------------------
617    Name: Matthias Blume (blume (at) tti - c (dot) org)
618    Date: 2004/10/20 15:06:00 CDT
619    Tag: blume-20041020-standalone-backtrace
620    Description:
621    
622    Added a mechanism for getting back-trace information from standalone
623    programs.  Here is how it works:
624    
625       1. The part of the program from which you want to get backtrace
626          information (usually the whole program) should be wrapped with
627          BackTrace.monitor.  This is a (unit->'a)->'a function, and your
628          main program could be modified from something like
629    
630             fun main (pgm, args) = ...
631    
632         to
633    
634            fun main (pgm, args) = BackTrace.monitor (fn () => ...)
635    
636       2. To be able to access BackTrace.monitor, you have to add
637          library $smlnj-tdp/plugins.cm to the .cm file that contains your
638          main function.
639    
640       3. Remove all compiled code (i.e., all the .cm/ subdirectories that
641          CM might have created in the past for your project).
642    
643       4. Build the system using this command line:
644    
645             ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
646                      myprog.cm MyProg.main myprog
647    
648          instead of the usual
649    
650             ml-build myprog.cm MyProg.main myprog
651    
652    I changed a library name:
653    
654       $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
655    
656    New libraries:
657    
658       $smlnj-tdp/back-trace.cm
659          -- when loaded causes the back-trace plugin to be installed
660       $smlnj-tdp/coverage.cm
661          -- when loaded causes the coverage plugin to be installed
662    
663    ----------------------------------------------------------------------
664    Name: Matthias Blume (blume (at) tti - c (dot) org)
665    Date: 2004/10/18 16:45:00 CDT
666    Tag: blume-20041018-groupowner
667    Description:
668    
669    Added an "obsolete" warning for the "group owner" syntax to CM's parser.
670    
671    Eliminated group owner specs from .cm files throughout the source tree.
672    
673    ----------------------------------------------------------------------
674    Name: Matthias Blume (blume (at) tti - c (dot) org)
675    Date: 2004/10/15 15:45:00 CDT
676    Tag: blume-20041015-coverage
677    Description:
678    
679    * Test coverage tool added!
680    * Further reorganization of tracing-, debugging-, and profiling support:
681    
682        - moved original BTImp -- now called BackTrace -- into a separate
683          library called $/trace-debug-profile.cm
684        - eliminated all mentions of BTrace from SMLofNJ.Internals
685        - only the instrumentation mechanism is now left in the compiler proper
686        - BackTrace module is a plugin which is NOT plugged in by default
687        - Coverage module is another such plugin
688    
689    To get the benefits of any of these plugin modules, the code in
690    question must be compiled with tdp instrumentation turned on.  This
691    can be done by setting SMLofNJ.Internals.TDP.mode to true.
692    (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
693    
694    Plugins are selected at link time.  (Pre-compiled instrumented code
695    can be re-loaded with different plugins in effect.)  When an
696    instrumented module is linked, whatever plugins are at that time
697    enabled will come into effect for that module.
698    
699    To enable the back-trace plugin, load library $/trace-debug-profile.cm
700    and invoke BackTrace.install() (e.g., from the interactive prompt).
701    To enable the coverage plugin, load the same library and invoke
702    Coverage.install().
703    
704    Back-traces are generated automatically on uncaught exceptions and
705    when the code in question explicitly invokes BackTrace.trigger().
706    
707    Coverage (and execution frequency-) information must be queried
708    explicitly by calling Coverage.not_covered and Coverage.hot_spots.
709    
710    ----------------------------------------------------------------------
711    Name: Matthias Blume (blume (at) tti - c (dot) org)
712    Date: 2004/10/14 17:40:00 CDT
713    Tag: blume-20041014-tdp-core
714    Description:
715    
716    Snapshot of a significant overhaul of how the trace/debug/profile support
717    is hooked into the system (specifically: Core and SMLofNJ.Internals).
718    
719    ----------------------------------------------------------------------
720    Name: Matthias Blume (blume (at) tti - c (dot) org)
721    Date: 2004/10/13 16:34:00 CDT
722    Tag: blume-20041013-tdp
723    Description:
724    
725    Some rationalization of names:
726    
727       structure BTrace -> structure TDPInstrument
728       etc.
729    
730    This is is preparation of using the original back-trace
731    instrumentation for other purposes.  "TDP" stands for
732    Trace/Debug/Profile.
733    
734    The control flag controlling whether instrumentation is on or off is now
735    registered under a different name, so instead of running sml as
736    
737     sml -Cinstrument.btrace-mode=true
738    
739    one has to say
740    
741     sml -Ctdp.instrument=true
742    
743    ----------------------------------------------------------------------
744    Name: Matthias Blume (blume (at) tti - c (dot) org)
745    Date: 2004/10/11 16:37:00 CDT
746    Tag: blume-20041011-regions
747    Description:
748    
749    Made some minor modifications to elabcore.sml to have source regions
750    be propagated more tightly -- resulting in better (i.e., smaller)
751    regions being reported in error- and debug messages.
752    
753    ----------------------------------------------------------------------
754    Name: Matthias Blume (blume (at) tti - c (dot) org)
755    Date: 2004/10/08 22:50:00 CDT
756    Tag: blume-20041008-cmkw
757    Description:
758    
759    Fixed handling of keywords in .cm files: After seeing "is" the lexer
760    treats subsequent occurrences of "group", "library", "source", "is",
761    "*", and "-" as ordinary identifiers rather than keywords.
762    
763    Most seriously, this fixes a problem with CM's "shell" tool.  The tool
764    is supposed to accept a tool argument called "source", but this did
765    not work because of the clash with the keyword.
766    
767    ----------------------------------------------------------------------
768    Name: Matthias Blume (blume (at) tti - c (dot) org)
769    Date: 2004/10/07 16:00:00 CDT
770    Tag: blume-20041007-cleanup
771    Description:
772    
773    Assorted cleanup work:
774    
775      - got rid of intstrmap in favor of using the library's
776        hash table implementation
777      - threw out most of the pathnames stuff, as it was not used anyway
778      - simplified tokentable implementation
779      - fixed some minor spelling errors
780    
781    ----------------------------------------------------------------------
782    Name: Matthias Blume (blume (at) tti - c (dot) org)
783    Date: 2004/10/06 15:15:15 CDT
784    Tag: blume-20041006-handler
785    Description:
786    
787    Cleaned up the absyn to reflect the invariant that HANDLE always
788    carries a FNexp as part of the type definition.  This eliminates some
789    superfluous sanity checks at runtime down the road.
790    
791    Some minor cleanup of the btrace code.
792    
793    ----------------------------------------------------------------------
794    Name: Matthias Blume (blume (at) tti - c (dot) org)
795    Date: 2004/10/01 10:20:30 CDT
796    Tag: blume-20041001-slave
797    Description:
798    
799    Added hack to make slave mode work in the presence of the version
800    tool.  (Still, since the master does two passes over the code for
801    CMB.make, the release number gets bumped twice when slaves are
802    attached.  I don't know if this is worth fixing...)
803    
804    ----------------------------------------------------------------------
805    Name: Matthias Blume (blume (at) tti - c (dot) org)
806    Date: 2004/09/30 10:55:00 CDT
807    Tag: blume-20040930-version
808    Description:
809    
810    * Moved the "version" magic into its own little library under
811      src/system/smlnj/internal.  This avoids expensive reconstruction of
812      a stable src/compiler/core.cm.
813    
814    * At the same time, structure CompilerVersion is now known as
815      structure SMLNJVersion.
816    
817    * Arranged for the version tool to NOT kick in when rebuilding the system
818      (makeml -rebuild, fixpt).  Otherwise one would never reach a fixpoint.
819      Also, loading the versiontool does not work when rebuilding the system
820      because CM is not properly initialized at that time.
821    
822    ----------------------------------------------------------------------
823    Name: Matthias Blume (blume (at) tti - c (dot) org)
824    Date: 2004/09/29 14:00:00 CDT
825    Tag: blume-20040929-autoversion
826    Description:
827    
828    Implemented some CM magic to have
829        file src/compiler/TopLevel/main/version.sml
830    generated automagically.
831    The version is taken from two files: config/version and config/release.
832    The first is expected to contain a two-part version number such as 110.49.
833    The second should contain a single number, but it may be missing.
834    
835    If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
836    time the version tool is loaded (which is the first time you say CMB.make),
837    then the tool will increment the value stored in config/release every
838    time CMB.make is invoked.
839    
840    The binfile format is now insensitive to anything beyond the first
841    two components of a version number, so bumping the release does not render
842    binfiles incompatible.  Auto-bumping can be used to keep track of versions
843    during development without invalidating existing binfiles.
844    
845    In any case, every CMB.make updates the date information in version.sml.
846    (This is the date that is printed in the banner.)
847    
848    ----------------------------------------------------------------------
849    Name: Matthias Blume (blume (at) tti - c (dot) org)
850    Date: 2004/09/28 10:53:00 CDT
851    Tag: blume-20040928-controls
852    Description:
853    
854    Some cleanup of the controls code.
855    
856    ----------------------------------------------------------------------
857    Name: Matthias Blume (blume (at) tti - c (dot) org)
858    Date: 2004/09/27 22:08:00 CDT
859    Tag: blume-20040927-controls
860    Description:
861    
862    Added two pieces of functionality to the Controls interface:
863    
864    1.   val save'restore: 'a control -> unit -> unit
865    
866       grabs the current value of the control in stage 1 and restores it
867       in stage 2.
868    
869    2.   val set' : 'a control * 'a -> unit -> unit
870    
871       stores the given value into the control in stage 2 (i.e., delayed)
872       but does all error checking in stage 1.
873       (This is for string controls that need to do parse their argument --
874        something that might fail.  In some cases, notably in CM, one
875        already knows the intended argument but wants to delay the actual
876        assignment until a time when error recovery would be more difficult.)
877    
878    Changed the handling of controls in tool arguments to classes "sml" and
879    "lazysml":
880       - use Controls.save'restore as a more robust way of restoring the
881         old value (in particular: without having to re-parse the string)
882       - use controls to handle the "overload" keyword in the init group
883         (I believe this change actually fixes a long-standing obscure bug.)
884    
885    ----------------------------------------------------------------------
886    Name: Matthias Blume (blume (at) tti - c (dot) org)
887    Date: 2004/09/27 17:00:00 CDT
888    Tag: blume-20040927-lazysml
889    Description:
890    
891    Added a new tool class called "lazysml" to CM's tool chest.  The only
892    difference to "sml" is that compilation is done with Control.lazysml
893    set to true.  A source of class "lazysml" is automatically recognized
894    by a file name suffix of ".lml".
895    
896    In addition to the above feature, the original class "sml" now also
897    supports a tool argument "lazy" which has the same effect.  As a
898    result, the following three lines are equivalent:
899    
900        foo.sml : lazysml
901        foo.sml : sml (lazy)
902        foo.sml (lazy)
903    
904    The setting goes into effect both during parsing and during
905    compilation.  The original setting is restored right after parsing and
906    after compilation, respectively.
907    
908    In addition to all the above, there is also a general mechanism to set
909    ANY of the "controls" that are available at the command line via
910    "-C..." on a per-sml-file basis.  The same rules that apply for "lazy"
911    apply as well. (In fact, "lazy" is implemented as a special case of
912    the general mechanism.)
913    
914    The .cm file syntax uses a new keyword tool argument called "with".
915    There are several ways of indicating the desired settings:
916    
917        foo.sml (with:parser.quotations=true)
918        foo.sml (with:(name:parser.quotations value:true))
919        foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
920        foo.sml (with:(name1=value1 name2=value2 ...))
921        foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
922    
923        etc.
924    
925    Another possible abbreviation is to leave out the =v or value:v part
926    if the name refers to a boolean control (in which case the value is
927    taken to be true).  Thus, one could get lazy sml also by saying:
928    
929        foo.sml (with:parser.lazy-keyword=true)
930        foo.sml (with:parser.lazy-keyword)
931        foo.sml (with:(name:parser.lazy-keyword value:true))
932        foo.sml (with:(name:parser.lazy-keyword))
933    
934    ----------------------------------------------------------------------
935    Name: Matthias Blume (blume (at) tti - c (dot) org)
936    Date: 2004/09/24 16:22:00 CDT
937    Tag: blume-20040924-ppc-long-branch
938    Description:
939    
940    Turned message about "emiting long form of branch" off by default.
941    Added a control flag to turn it back on when desired.
942    
943    ----------------------------------------------------------------------
944    Name: Matthias Blume (blume (at) tti - c (dot) org)
945    Date: 2004/09/24 16:05:00 CDT
946    Tag: blume-20040924-rounding
947    Description:
948    
949    Applied patch for setting rounding modes under Mac OS X.  Thanks to
950    Melissa O'Neill for providing the code!
951    
952    ----------------------------------------------------------------------
953  Name: Matthias Blume (blume (at) tti - c (dot) org)  Name: Matthias Blume (blume (at) tti - c (dot) org)
954  Date: 2004/09/23 17:30:00 CDT  Date: 2004/09/23 17:30:00 CDT
955  Tag: blume-20040923-envvars  Tag: blume-20040923-envvars

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