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Diff of /sml/trunk/NOTES/HISTORY

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sml/trunk/HISTORY revision 939, Tue Sep 25 19:25:48 2001 UTC sml/trunk/NOTES/HISTORY revision 2340, Wed Feb 21 00:17:08 2007 UTC
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1  This is the HISTORY file for the Yale SML/NJ CVS repository.  This is the HISTORY file for the SML/NJ repository.
2    
3  An entry should be made for _every_ commit to the repository.  An entry should be made for _every_ commit to the repository.
4  The entries in this file will be used when creating the README  The entries in this file will be used when creating the README
# Line 7  Line 7 
7    
8  The form of an entry should be:  The form of an entry should be:
9    
10  Name:  
11  Date:  Name: Your Name (web page or e-mail)
12  Tag: <post-commit CVS tag>  Date: yyyy/mm/dd hh:mm:ss
13    Tag: cvs-tag-for-this-change
14    Description:
15    
16    ----------------------------------------------------------------------
17    Name: Allen Leung (leunga (at) reservoir (dot) com)
18    Date: 2007/02/20 19:08:00 EST
19    Description:
20    
21        Bug triggered by:
22    
23        val a1 = Word8Array.array(a1, 0w0);
24        val _  = Word8Array.update(a1, 0, 0w128);
25    
26        x86MCEmitter crashed when the immediate operand to MOVB was outside
27    of the range -128 ... 127.  I've changed the code so that the range
28    check is disabled.   Only the low order 8 bits of the immediate operand
29    is now significant.
30    
31    
32    ----------------------------------------------------------------------
33    Name: Matthias Blume (http://www.tti-c.org/blume/)
34    Date: 2007/02/15 09:20:00 CST
35    Description:
36    
37    Eliminated any mention of lexgen.  (Lexgen was an early precursor
38    to ml-ulex.)
39    
40    You should update your admin directory, so the shell scripts for
41    maintaining your local copy of the repository reflect this change.
42    
43    ----------------------------------------------------------------------
44    Name: Matthias Blume (http://www.tti-c.org/blume/)
45    Date: 2007/02/14 15:45:00 CST
46    Description:
47    
48    Fixed bug in CM's parallel make facility that failed to have
49    the master re-link modules after letting slaves compile them.
50    
51    ----------------------------------------------------------------------
52    Name: Matthias Blume (http://www.tti-c.org/blume/)
53    Date: 2007/02/12 15:10:00 CST
54    Description:
55    
56    Fixed typo in ml-build script that prevented library anchors
57    from being registered.
58    
59    ----------------------------------------------------------------------
60    Name: Matthias Blume (http://www.tti-c.org/blume/)
61    Date: 2007/02/02 15:20:00 CST
62    Tag: release-110.62
63    Description:
64    
65    New working release (110.62).  NEW BOOTFILES!
66    
67    ----------------------------------------------------------------------
68    Name: Aaron Turon (http://www.cs.uchicago.edu/~adrassi)
69    Date: 2007/01/31
70    Description:
71    
72    Brought ml-lpt manual up-to-date with the code.  Many minor
73    improvements to the tools, and a few minor bugfixes.  Prepared
74    ml-lpt-lib for integration with new UTF8 structure.  Changed
75    the interface for creating streams in ml-ulex (we now support
76    stream creation from several kinds of sources).  Overall, the
77    tools are now quite stable, and their interfaces are unlikely to
78    change in a way that would break compatibility.  More work,
79    however, is needed in the documentation.
80    
81    ----------------------------------------------------------------------
82    Name: Matthias Blume (http://www.tti-c.org/blume/)
83    Date: 2007/02/01 10:05:00 CST
84    Description:
85    
86    Implemented library installer.  Moved CM plugin code for
87    ml-burg, ml-lex, and ml-yacc out of CM source tree and into
88    their respective trees.  Implemented CM plugin for ml-ulex
89    and ml-antlr.  Used library installer for ml-burg, ml-ulex,
90    and ml-antlr.
91    
92    For ml-yacc and ml-lex we continue to have permanently "plugged-in"
93    CM tools.  (It turns out to be too messy to do otherwise because
94    there is too much code that during installation relies on the presence
95    of these tools -- resulting in a tricky ordering problem.)
96    
97    ----------------------------------------------------------------------
98    Name: Matthias Blume (http://www.tti-c.org/blume/)
99    Date: 2007/01/30 11:05:00 CST
100    Description:
101    
102    Added SMLofNJ.shiftArgs which is like a shell's "shift" command.
103    Modified CM's startup code to use shiftArgs as it processes
104    command line arguments.  This way, the init code in each .sml-file
105    or library that is mentioned at the top level will see only
106    those arguments that have not yet been processed at this point.
107    In other words, the init code can "seize control" and process the
108    remaining command line.
109    
110    ----------------------------------------------------------------------
111    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
112    Date: 2007/01/28
113    Description:
114    
115    Added the UTF8 structure and signature from the Moby compiler to
116    the SML/NJ library (and the CML library).  These modules will replace
117    the version in the ml-lpt-lib.
118    
119    ----------------------------------------------------------------------
120    Name: Matthias Blume (http://www.tti-c.org/blume/)
121    Date: 2007/01/26 15:10:00 CST
122    Description:
123    
124    Added entries to handle ml-lpt-lib.cm in installer.
125    
126    ----------------------------------------------------------------------
127    Name: Matthias Blume (http://www.tti-c.org/blume/)
128    Date: 2006/12/15 11:10:00 CST
129    Tag: release-110.61
130    Description:
131    
132    New working release (110.61).  NEW BOOTFILES!
133    
134    This supersedes the pre-brown-paper-bug release (see below).
135    
136    ----------------------------------------------------------------------
137    Name: Matthias Blume (http://www.tti-c.org/blume/)
138    Date: 2006/12/15 11:00:00 CST
139    Description:
140    
141    Fixed brown-paper-bag bug with CM's pathname handling, which made
142    installation fail under Win32.
143    
144    ----------------------------------------------------------------------
145    Name: Matthias Blume (http://www.tti-c.org/blume/)
146    Date: 2006/12/14 12:00:00 CST
147    Description:
148    
149    Obsolete!
150    
151    [New working release (110.61).  NEW BOOTFILES!]
152    
153    ----------------------------------------------------------------------
154    Name: John Reppy (http://cs.uchicago.edu/~jhr)
155    Date: 2006/14/06 09:50:00 CST
156    Description:
157    
158    Fixed the code in runtime/c-libs/posix-tty/{tcgetattr,tcsetattr}.c to
159    get the c_cc termios data copied correctly.  Also moved the allocation
160    of the string to avoid problems if it caused a GC.
161    
162    Thanks to Timothy Bourke for the bug report and fix.
163    
164    ----------------------------------------------------------------------
165    Name: Matthias Blume (http://www.tti-c.org/blume)
166    Date: 2006/12/08 09:50:00 CST
167    Description:
168    
169    Added code to CM's "standard shell tool" implementation which
170    causes it to tolerate (with a warning) the situation where the shell
171    command fails (e.g., due to the shell command's non-existence)
172    as long as all target files exist.
173    
174    This makes it possible to, e.g., build ml-yacc from sources even if
175    svn checkout messed up the time stamps on files in such a way that
176    yacc.grm is younger than yacc.grm.sml or yacc.grm.sig.  (Ml-yacc would
177    be needed to re-process yacc.grm, but obviously it might not yet be
178    available at that time.)
179    
180    ----------------------------------------------------------------------
181    Name: John Reppy (http://cs.uchicago.edu/~jhr)
182    Date: 2006/12/06 12:06:00 CST
183    Description:
184    
185    Fixed the types of recvVecFrom, recvVecFrom', recvVecFromNB, and
186    recvVecFromNB' in the SOCKET signature.  This error is actually
187    in the SML Basis specification too.
188    
189    ----------------------------------------------------------------------
190    Name: Matthias Blume (http://www.tti-c.org/blume/)
191    Date: 2006/12/05 22:40:00 CST
192    Description:
193    
194    CM now reports undefined anchors as errors and aborts execution
195    rather than silently pressing on using bogus values.
196    
197    ----------------------------------------------------------------------
198    Name: Matthias Blume (http://www.tti-c.org/blume/)
199    Date: 2006/11/29 10:00:00 CST
200    Description:
201    
202    Use Say.vsay for printing the "[autoloading]" message, so
203    #set CM.Control.verbose false (or -Ccm.verbose=false) can be used
204    to suppress them.
205    
206    ----------------------------------------------------------------------
207    Name: Matthias Blume (http://www.tti-c.org/blume/)
208    Date: 2006/11/10 11:00:00 CST
209    Description:
210    
211    Fixed bug in CM where "with:" specifications that affect compilation
212    (as opposed to parsing) were ignored.
213    
214    ----------------------------------------------------------------------
215    Name: Matthias Blume (http://www.tti-c.org/blume/)
216    Date: 2006/11/09 14:30:00 CST
217    Tag: release-110.60
218    Description:
219    
220    New working release (110.60).  NEW BOOTFILES!
221    
222    This is the first subversion-hosted release.  There are also changes
223    to the directory layout.  Here is a table:
224    
225    (All pathnames are relative to the SML/NJ "root" directory.)
226    
227      config -> config
228    
229      src/cm -> base/cm
230      src/compiler -> base/compiler
231      src/runtime -> base/runtime
232      src/system -> base/system
233    
234      src/cm/pgraph -> pgraph
235    
236      src/READMES -> base/READMES
237      src/$notefile -> base/NOTES/$notefile
238         for <notefile> in BOOT CVSNOTES CYGWININSTALL HISTORY INSTALL
239                           MACOSXINSTALL WININSTALL
240    
241      src/smlnj-lib -> smlnj-lib
242      src/MLRISC -> MLRISC
243      ckit -> ckit
244      src/cml -> cml
245      src/eXene -> eXene
246      src/heap2asm -> heap2asm
247      src/lexgen -> lexgen
248      src/ml-burg -> ml-burg
249      src/ml-lex -> ml-lex
250      src/ml-yacc -> ml-yacc
251      src/ml-nlffi-lib -> nlffi/lib
252      src/ml-nlffigen -> nlffi/gen
253      src/smlnj-c -> smlnj-c
254      src/tools/TraceDebugProf -> trace-debug-profile
255    
256    In addition, there is also a new
257    
258      ml-lpt
259    
260    directory containing two new program generator tools: ml-ulex and
261    ml-antlr (a lexer generator that handles unicode and an ANTRL-inspired
262    LL(k) parser generator). These tools are currently "beta-quality"
263    
264    The latest versios of the sources can now be obtained anonymously
265    via subversion.  For this, it is useful to first check out
266    
267       svn://smlnj-gforge.cs.uchicago.edu/smlnj/admin
268    
269    and put the resulting directory on your shell's PATH.  This provides
270    access to three shell scripts: checkout-all.sh, stat-all.sh,
271    and refresh-all.sh.
272    
273    To create a freshly checked-out copy of the sources, do
274    
275       checkout-all.sh [dir]
276    
277    where dir is the optional SML/NJ root directory (default is ".").
278    
279    This creates the above directory layout.  Each subdirectory of
280    the root is under individual subversion control.  The stat-all.sh
281    and refresh-al.sh scripts apply "svn stat" or "svn update" to
282    each of these subtrees.
283    
284    ----------------------------------------------------------------------
285    Name: Matthias Blume (http://www.tti-c.org/blume/)
286    Date: 2006/11/02 12:20:00 CST
287    Description:
288    
289    Reorganized directory layout.
290    
291    This is a temporary solution, more reorganization is to come.
292    
293    The basic idea is to have a number of toplevel trees, each corresponding
294    to a well-defined part of the overall system.  Each part can be
295    maintained individually, even in separate source repositories,
296    although currently we still serve everything out of the main
297    smlnj-gforge tree.
298    
299    Installer and and scripts have been updated to reflect the new
300    layout.  The installer (base/src/system/smlnj/installer) is now
301    "scriptable" to avoid burning too much knowledge about the
302    layout into SML source code.  The main script used by the installer
303    is in config/actions.
304    
305    The main change is that many of the subdirectories of what used to
306    be known as "src" have moved to the toplevel.  The "src" directory
307    itself has moved down into a subtree called "base".  (We may eventually
308    get rid of the extra level of indirection represented by "src".)
309    
310    The layout is now as follows:
311    
312      toplevel tree name | default repository
313                         | (using gf=svn://smlnj-gforge.cs.uchicago.edu/smlnj)
314      -------------------+----------------------------------------------------
315      config             | $gf/config/trunk
316                         |
317      base               | $gf/sml/trunk
318                         |
319      smlnj-lib          | $gf/smlnj-lib/trunk
320      MLRISC             | $gf/MLRISC/trunk
321                         |
322      ml-yacc            | $gf/ml-yacc/trunk
323      ml-lex             | $gf/ml-lex/trunk
324      ml-burg            | $gf/ml-burg/trunk
325      lexgen             | $gf/lexgen/trunk
326      heap2asm           | $gf/heap2asm/trunk
327                         |
328      cml                | $gf/cml/trunk
329      eXene              | $gf/eXene/trunk
330      ckit               | $gf/ckit/trunk
331      nlffi              | $gf/nlffi/trunk
332                         |
333      smlnj-c            | $gf/smlnj-c/trunk
334    
335    In $gf/admin there are a few useful shell scripts for checking out
336    and maintaining the entire collection of trees:
337    
338       admin/checkout-all.sh [dir]
339          -- optionally creates dir and checks out all trees from their
340             default repositories; if dir is missing, checkout into .
341       admin/refresh-all.sh [dir]
342          -- looks at all trees (from the above list) in dir (default: .)
343             and runs "svn update" if the tree exists and is under
344             subversion control;
345             non-existing or non-subversion trees are skipped
346       admin/stat-all.sh [dir]
347          -- like refresh-all.sh, but runs "svn stat" instead
348    
349    ----------------------------------------------------------------------
350    Name: Matthias Blume (http://www.tti-c.org/blume/)
351    Date: 2006/10/05 11:30:00 CDT
352    Tag: blume-20061005-merge-amd64
353    Description:
354    
355    Merged code for AMD64 backend (Mike Rainey's work).
356    Everything is hooked up but untested.
357    
358    ----------------------------------------------------------------------
359    Name: Matthias Blume (http://www.tti-c.org/blume/)
360    Date: 2006/05/17 14:00:00 CST
361    Tag: Release_110_59
362    Description:
363    
364    New working version (110.59).  NEW BOOTFILES!
365    
366    I am freezing 110.59.  Changes other than the version-number increase:
367    
368      eXene:
369    
370         * committed changes to eXene from Alley Stoughton:
371             "fixed bugs in X authorization and resource handling, as well
372              as in the pile and viewport widgets"
373    
374      Runtime:
375        * fixed linking problem with NetBSD 3.x.
376    
377      Lexgen:
378        * lexgen tool handles non-ascii characters in 7-bit mode the same
379          way that ml-lex does
380    
381        * lexgen propagates exceptions the same way that ml-lex does
382    
383      CML:
384        * Fixed a bug in the SyncVar polling functions (iGetPoll,
385          mTakePoll, and mGetPoll) that could lead to livelock.
386    
387    ----------------------------------------------------------------------
388    Name: Matthias Blume (http://www.tti-c.org/blume/)
389    Date: 2006/05/12 15:20:00 CST
390    Tag: blume-20060515-makedepend
391    Description:
392    
393    Implemented ml-makedepend (i.e., CM.sources) in a better (more robust)
394    way.  This should hopefully fix the ml-makedepend problem permanently.
395    
396    ----------------------------------------------------------------------
397    Name: Matthias Blume (http://www.tti-c.org/blume/)
398    Date: 2006/05/12 15:15:00 CST
399    Tag: blume-20060512-makedepend
400    Description:
401    
402    Fixed long-standing bug with ml-makedepend where it would output a
403    spurious dependency to a non-existing file.  (This is a simple fix.
404    It might need further looking into.)
405    
406    ----------------------------------------------------------------------
407    Name: Matthias Blume (http://www.tti-c.org/blume/)
408    Date: 2006/04/20 10:30:00 CDT
409    Tag: blume-20060420-heap2exec
410    Description:
411    
412    Committed patches received from Johannes 5 Joemann (joemann@befree.free.de)
413    that enable heap2exec under Linux and FreeBSD.
414    
415    ----------------------------------------------------------------------
416    Name: John Reppy
417    Date: 2006/04/14
418    Tag:
419    Description:
420    
421    MLRISC changes:
422      1) renamed GAS_PSEUDO_OPS to AS_PSEUDO_OPS and put it in its own file.
423      2) added support for NOTB and XORB operators in pseudo-op expressions
424      3) added DarwinPseudoOp functor that supports Darwin's assembler syntax.
425      4) added support for 64-bit integer literals
426    
427    ----------------------------------------------------------------------
428    Name: Matthias Blume (http://www.tti-c.org/blume/)
429    Date: yyyy/mm/dd
430    Tag: Release_110_58
431    Description:
432    
433    New working version (110.58).  NEW BOOTFILES!
434    
435    ----------------------------------------------------------------------
436    Name: Matthias Blume (http://www.tti-c.org/blume/)
437    Date: 2006/03/01 22:15:00 CST
438    Tag: blume-20060301-lexgen
439    Description:
440    
441    Incorporated several bugfixes to lexgen.  Compiler now compiles to
442    fixpoint when using lexgen instead of ml-lex.
443    
444    ----------------------------------------------------------------------
445    Name: Matthias Blume (http://www.tti-c.org/blume/)
446    Date: 2006/02/28 22:45:00 CST
447    Tag: blume-20060228-lexgen
448    Description:
449    
450    Removed ml-flex and added lexgen instead, using Aaron Turon's newly
451    provided tarball.  The generated lexers still have problems.
452    
453    ----------------------------------------------------------------------
454    Name: Matthias Blume (http://www.tti-c.org/blume/)
455    Date: 2006/02/26 23:30:00 CST
456    Tag: blume-20060226-ml-flex
457    Description:
458    
459    Removed ml-flex' dependency on regexp-lib.cm.  Turned installation
460    of ml-flex on by default.
461    
462    ----------------------------------------------------------------------
463    Name: Matthias Blume (http://www.tti-c.org/blume/)
464    Date: 2006/02/24 16:30:00 CST
465    Tag: blume-20060224-ml-flex
466    Description:
467    
468    Added ml-flex sources.  Partially integrated, but should not be
469    turned on yet!  (Read: leave it commented-out in config/targets!)
470    
471    ----------------------------------------------------------------------
472    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
473    Date: 2006/02/23
474    Tag: jhr-20060223-x86-64
475    Description:
476    Changes to support building on x86-64 systems (using the 32-bit mode).
477    Also cleaned up signal handling on Linux.  Support for pre-2.2 Linux
478    kernels dropped.
479    
480    ----------------------------------------------------------------------
481    Name: Allen Leung (leunga (at) reservoir (dot) com)
482    Date: 2006/02/22 15:07:00 EST
483    Tag: leunga-20060222-mdl-gen
484    Description:
485    
486      CM has changed.  Updated the script for rebuilding the MLRISC generated
487    files.
488    
489    ----------------------------------------------------------------------
490    Name: Matthias Blume (http://www.tti-c.org/blume/)
491    Date: 2006/02/14 17:30:00 CST
492    Tag: blume-20060214-intel-mac
493    Description:
494    
495    Hooked code for Darwin-specific Intel ABI into main compiler.
496    (This is a temporary solution which relies on the fact that the
497    compiler itself does not use NLFFI.  Eventually we need to divorce
498    intel mac from generic x86 unix code and make separate sets of binaries.)
499    
500    ----------------------------------------------------------------------
501    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
502    Date: 2006/02/13
503    Tag: jhr-20060213-intel-mac
504    Description:
505    Changed MLRISC x86 CCalls for partial support of MacOS X ABI.
506    
507    ----------------------------------------------------------------------
508    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
509    Date: 2006/02/06
510    Tag: jhr-20060206-intel-mac
511    Description:
512    Changes to support MacOS X on Intel hardware.  The C-calls support in
513    MLRISC must also be updated to support the MacOS X ABI.
514    
515    ----------------------------------------------------------------------
516    Name: Matthias Blume (http://www.tti-c.org/blume/)
517    Date: 2005/12/16 00:15:00 CST
518    Tag: blume-20051216-cm
519    Description:
520    
521    Improved error reporting and handling in CM.
522    
523    ----------------------------------------------------------------------
524    Name: Matthias Blume (http://www.tti-c.org/blume/)
525    Date: 2005/11/21 14:00:00 CST
526    Tag: blume-20051121-html-lib
527    Description:
528    
529    Enabling $/html-lib.cm in config/preloads did not work.  This is fixed
530    now.  (Since the anchor mapping for html-lib.cm is not yet in effect
531    at the time when config/preloads is processed, the library has to
532    be referred to by another name.  In 110.57 this would be
533    $SMLNJ-LIB/HTML/html-lib.cm.  I arranged for $smlnj/smlnj-lib/html-lib.cm
534    to be valid as well.)
535    
536    Thanks to Todd Wilson (Fresno) for alerting me to this issue.
537    
538    ----------------------------------------------------------------------
539    Name: Matthias Blume (http://www.tti-c.org/blume/)
540    Date: 2005/11/19 13:45:00 CST
541    Tag: Release_110_57
542    Description:
543    
544    Moved release tag for 110.57.
545    
546    ----------------------------------------------------------------------
547    Name: Matthias Blume (http://www.tti-c.org/blume/)
548    Date: 2005/11/19 23:35:00 CST
549    Tag: blume-20051119-fish
550    Description:
551    
552    Fixed a problem in config/install.sh where it tries to "fish" the
553    name of the CM metadata directory from the wrong place (because
554    the physical location of basis.cm has changed).  Also, corrected the
555    path anchor for $/html-lib.cm.  (Thanks to M. Fluet for pointing out
556    these problems.)
557    
558    ----------------------------------------------------------------------
559    Name: Matthias Blume (http://www.tti-c.org/blume/)
560    Date: 2005/11/16 14:30:00 CST
561    Tag: blume-orig-110_57
562    Description:
563    
564    New working version (110.57).  NEW BOOTFILES!
565    
566    UPDATE: The release tag has been moved to include a fix for a brown-paper-
567            bag glitch (see above).
568    
569    ----------------------------------------------------------------------
570    Name: Matthias Blume (http://www.tti-c.org/blume/)
571    Date: 2005/11/16 10:25:00 CST
572    Tag: blume-22051116-btrace
573    Description:
574    
575    Fixed problem with bogus exception message when using back-trace
576    facility.
577    
578    ----------------------------------------------------------------------
579    Name: Matthias Blume (http://www.tti-c.org/blume/)
580    Date: 2005/11/15 22:35:00 CST
581    Tag: blume-22051115-array2copy
582    Description:
583    
584    Added simple implementation of Array2.copy.  (Warning: mostly untested.)
585    
586    ----------------------------------------------------------------------
587    Name: Matthias Blume (http://www.tti-c.org/blume/)
588    Date: 2005/11/15 21:35:00 CST
589    Tag: blume-22051115-versiontool
590    Description:
591    
592    Reversed change to src/system/smlnj/internals/versiontool.cm.  This
593    file gets loaded as a tool -- by the equivalent of CM.make during the
594    run of CMB.make.  Thus, CMB's path configuration is meaningless for
595    it.  Instead, it has the status of "user code", so it should use
596    $/basis.cm to refer to the Basis library.  (At least that's true for
597    the purpose of bootstrapping the previous change.  In the future it
598    might make sense to have versiontool.cm refer to
599    $smlnj/basis/basis.cm, i.e., the version of the Basis that the
600    compiler itself uses.)
601    
602    Also patched src/system/testml to have it activate those extra anchor
603    bindings in config/extrapathconfig.
604    
605    ----------------------------------------------------------------------
606    Name: Matthias Blume (http://www.tti-c.org/blume/)
607    Date: 2005/11/15 16:35:00 CST
608    Tag: blume-22051115-libraries
609    Description:
610    
611    This change affects the way the following libraries are tied into
612    the system:
613    
614       $/basis.cm
615       $/smlnj-lib.cm
616       $/pp-lib.cm
617       $/controls-lib.cm
618       $/html-lib.cm
619       $/ml-yacc-lib.cm
620    
621    These libraries are now internally (as seen from the source code
622    of the implementation itself) known by the following names:
623    
624       $smlnj/basis/basis.cm
625       $smlnj/smlnj-lib/smlnj-lib.cm
626       $smlnj/smlnj-lib/pp-lib.cm
627       $smlnj/smlnj-lib/controls-lib.cm
628       $smlnj/smlnj-lib/html-lib.cm
629       $smlnj/ml-yacc/ml-yacc-lib.cm
630    
631    This makes it possible to work with code that requires different
632    versions of these libraries, and which refers to these libraries using
633    their "default" names (i.e., the first set of names above).  In other
634    words, one can un-define or re-define those default names without
635    compromising the proper functioning of the compiler itself.
636    
637    A similar procedure had already been performed for several of the
638    MLRISC libraries that are linked into the compiler.  I did some
639    cleanup on this code.
640    
641    A new file in the config directory (named extrapathconfig) is
642    responsible for setting up path anchors that the compiler itself does
643    not need, but that are typically required by user code.
644    
645    ----------------------------------------------------------------------
646    Name: Matthias Blume
647    Date: 2005/11/07 17:05:00 CST
648    Tag: blume-20051107-slice
649    Description:
650    
651    Fixed erroneous out-of-bounds test in the "update" function of
652    various *ArraySlice modules.  (Thanks to Vesa A. Norrman for pointing
653    out the problem.)
654    
655    Pushed some Basis changes through ML-Lex, CML, and eXene.
656    
657    ----------------------------------------------------------------------
658    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
659    Date: 2005/11/07
660    Description:
661    Fixed a Basis incompatibility: The depreciated function Substring.all
662    was removed (use Substring.full instead).
663    
664    ----------------------------------------------------------------------
665    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
666    Date: 2005/11/05
667    Description:
668    Tweaked interval set API in SML/NJ library; see the CHANGES file for details.
669    
670    ----------------------------------------------------------------------
671    Name: Matthias Blume (http://www.tti-c.org/blume/)
672    Date: 2005/11/02 16:25:00 CST
673    Tag: blume-20051102-hex
674    Description:
675    
676    * Runtime system bootstrap code now accepts hex digits in BOOTLIST
677      in either upper case or lower case format.
678    * Pushed changes to names of Pack<N>{Big,Little} structures through
679      CML and eXene.
680    
681    ----------------------------------------------------------------------
682    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
683    Date: 2005/11/02
684    Description:
685    Fixed a Basis incompatibility: Pack<N>{Big,Little} structures should
686    be called PackWord<N>{Big,Little}.
687    
688    ----------------------------------------------------------------------
689    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
690    Date: 2005/10/28
691    Description:
692    Fixed a minor Basis incompatibility: hex digits should be upper case.
693    
694    ----------------------------------------------------------------------
695    Name: Matthias Blume (blume (at) tti - c (dot) org)
696    Date: 2005/10/25 16:00:00 CDT
697    Tag: Release_110_56
698    Description:
699    
700    New working version (110.56).  NEW BOOTFILES!
701    
702    ----------------------------------------------------------------------
703    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
704    Date: 2005/10/25
705    Description:
706    Added interval sets to utility library (signatures INTERVAL_DOMAIN
707    and INTERVAL_SET, and functor IntervalSetFn).
708    
709    ----------------------------------------------------------------------
710    Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
711    Date: 2005/10/14
712    Description:
713    Add Zhong Shao's fix for datatype equality functions.
714    
715    ----------------------------------------------------------------------
716    Name: Allen Leung (leunga (at) reservoir (dot) com)
717    Date: 2005/10/14 12:30:00 EST
718    Tag: leunga-20051014-x86-spill
719    Description:
720    
721    Bug fix a bug found by Carl Hauser.
722    There was a typo in the reload code for FCMP in x86SpillInstr.sml.
723    
724    ----------------------------------------------------------------------
725    Name: Allen Leung (leunga (at) reservoir (dot) com)
726    Date: 2005/10/14 11:15:00 EST
727    Tag: leunga-20051014-x86-asm
728    Description:
729    
730    Removed some debugging code in file x86Asm.sml.
731    The function emit_operand was printing out debugging output.
732    
733    ----------------------------------------------------------------------
734    Name: John Reppy
735    Date: 2005/07/27
736    Tag:
737    Description:
738    
739    Fixed ml-lex to recognize "\r" as representing carriage return.
740    
741    ----------------------------------------------------------------------
742    Name: John Reppy
743    Date: 2005/07/27
744    Tag:
745    Description:
746    
747    Fixed ml-yacc to work on files with non-native end-of-line
748    encodings (e.g., Windows text file on a Unix system).
749    
750    ----------------------------------------------------------------------
751    Name: John Reppy
752    Date: 2005/07/20
753    Tag:
754    Description:
755    
756    Added changes from Dominic Evans (oldmanuk (at) gmail (dot) com)
757    to support HPUX 11.
758    
759    ----------------------------------------------------------------------
760    Name: John Reppy
761    Date: 2005/07/06
762    Tag:
763    Description:
764    
765    Changes to the SML/NJ library.  See smlnj-lib/CHANGES for details.
766    
767    ----------------------------------------------------------------------
768    Name: Matthias Blume (blume (at) tti - c (dot) org)
769    Date: 2005/07/06 00:45:00 CDT
770    Tag: blume-20050706-slice-copy
771    Description:
772    
773    Fixed reversed logic for deciding whether to "copy up" or "copy down"
774    in *-array-slice.sml.
775    
776    ----------------------------------------------------------------------
777    Name: Allen Leung (leunga (at) reservoir (dot) com)
778    Date: 2005/05/31 17:00:00 EST
779    Tag: leunga-20050531-cygwin-fault-2
780    Description:
781    
782    A typo in the cygwin code fixed.
783    
784    ----------------------------------------------------------------------
785    Name: Allen Leung (leunga (at) reservoir (dot) com)
786    Date: 2005/05/31 16:47:00 EST
787    Tag: leunga-20050531-cygwin-fault
788    Description:
789    
790    Updated Cygwin's fault/signal handling to match the Windows version.
791    Updated the export list.
792    
793    ----------------------------------------------------------------------
794    Name: Matthias Blume (blume (at) tti - c (dot) org)
795    Date: 2005/05/18 13:35:00 CDT
796    Tag: Release_110_54
797    Description:
798    
799    New working version (110.54).  NEW BOOTFILES!
800    
801    ----------------------------------------------------------------------
802    Name: Matthias Blume (blume (at) tti - c (dot) org)
803    Date: 2005/05/18 11:58:00 CDT
804    Tag: blume-20050518-installer
805    Description:
806    
807    Added support scripts for Mac OS X PackageMaker and modified
808    config/install.sh so that it supports re-dumping a heap image
809    after customization.
810    
811    ----------------------------------------------------------------------
812    Name: Matthias Blume (blume (at) tti - c (dot) org)
813    Date: 2005/05/18 10:55:00 CDT
814    Tag: blume-20050518-realdiv-noovld
815    Description:
816    
817    Un-overloaded / to work around bug in overloading resolution code.
818    
819    ----------------------------------------------------------------------
820    Name: Matthias Blume (blume (at) tti - c (dot) org)
821    Date: 2005/05/16 23:50:00 CDT
822    Tag: blume-20050516-redump-heap
823    Description:
824    
825    Added mechanism for re-creating a heap file for the interactive system
826    after configuration variables have been changed.
827    
828       CM.redump_heap : string -> unit
829    
830    This is much like SMLofNJ.exportML, but starting from the resulting
831    heap does not return to the caller of CM.redump_heap but
832    restarts the interactive system from scratch.  The original call of
833    CM.redump_heap does not return but ends the interactive session.
834    Thus, CM.redump_heap is a lot like SMLofNJ.exportFn.
835    
836    Internally, redump_heap winds the dynamic execution context back to
837    the point where the original heap image was created and re-executes
838    the heap image generation code in the boot code.
839    
840    ----------------------------------------------------------------------
841    Name: Matthias Blume (blume (at) tti - c (dot) org)
842    Date: 2005/05/09 21:55:00 CDT
843    Tag: blume-20050509-word64
844    Description:
845    
846    Added a hack to the existing hack known as Word64 to make fromString
847    behave correctly.  I am still not sure whether Word64.scan will work
848    as specified with respect to the interaction of radix and prefix.
849    
850    ----------------------------------------------------------------------
851    Name: Allen Leung (leunga (at) reservoir (dot) com)
852    Date: 2005/05/04 11:50:00 EST
853    Tag: leunga-20050504-checkgc
854    Description:
855    
856    Added a gc protocol checking phase.  This phase is enabled with
857    the flag "check-gc".  "debug-check-gc" turns on the verbose mode.
858    
859    ----------------------------------------------------------------------
860    Name: Matthias Blume (blume (at) tti - c (dot) org)
861    Date: 2005/05/04 10:45:00 CDT
862    Tag: blume-20050504-intinf
863    Description:
864    
865    Fixed a bug in the implementation of div and mod for IntInf.
866    Thanks to Neophytos Michael for reporting the problem.
867    
868    ----------------------------------------------------------------------
869    Name: Matthias Blume (blume (at) tti - c (dot) org)
870    Date: 2005/05/04 10:35:00 CDT
871    Tag: blume-20050504-join
872    Description:
873    
874    Added a "join" combinator to the ParserComb module in smlnj-lib.cm.
875    
876    ----------------------------------------------------------------------
877    Name: Matthias Blume (blume (at) tti - c (dot) org)
878    Date: 2005/02/28 23:40:00 CST
879    Tag: blume-20050228-mVar
880    Description:
881    
882    Fixed serious bug (brown paper bag variety) in new implementation of
883    structure Atom in CML.  (I had accidentally used a mailbox instead of
884    an mvar, leaving the door open for races.)
885    
886    ----------------------------------------------------------------------
887    Name: Matthias Blume (blume (at) tti - c (dot) org)
888    Date: 2005/02/25 15:00:00 CST
889    Tag: Release_110_53
890    Description:
891    
892    New working version (110.53).  NEW BOOTFILES!
893    
894    ----------------------------------------------------------------------
895    Name: Matthias Blume (blume (at) tti - c (dot) org)
896    Date: 2005/02/25 14:50:00 CST
897    Tag: blume-20050225-susp
898    Description:
899    
900    Brought back SMLofNJ.Susp.  The underlying suspension type is the one
901    implemented in Core -- which means that it is the same as the one used
902    by the lazy extension.
903    
904    ----------------------------------------------------------------------
905    Name: Matthias Blume (blume (at) tti - c (dot) org)
906    Date: 2005/02/24 16:50:00 CST
907    Tag: blume-20050224-cml-atom
908    Description:
909    
910    Simpler and at the same time more general implementation of structure
911    Atom in CML.
912    
913    ----------------------------------------------------------------------
914    Name: Matthias Blume (blume (at) tti - c (dot) org)
915    Date: 2005/02/15 17:35:00 CST
916    Tag: blume-20050215-tools
917    Description:
918    
919    Created new "tools" directory under "src" and moved "TraceDebugProf"
920    there.
921    
922    ----------------------------------------------------------------------
923    Name: Matthias Blume (blume (at) tti - c (dot) org)
924    Date: 2005/02/10 17:55:00 CST
925    Tag: blume-20050210-longlong
926    Description:
927    
928    Implemented "long long" arguments and results for NLFFI.  (Only the
929    PPC/MacOS implementation is complete, the other backends still need to
930    be updated.)
931    
932    ----------------------------------------------------------------------
933    Name: Matthias Blume (blume (at) tti - c (dot) org)
934    Date: 2005/01/24 17:40:00 CST
935    Tag: blume-20050124-mlyacc
936    Description:
937    
938    Minor cleanup in ML-Yacc rule printing mechanism.  This should fix a
939    problem with certain "as" patterns which previously got rendered
940    using incorrect syntax.
941    
942    ----------------------------------------------------------------------
943    Name: Matthias Blume (blume (at) tti - c (dot) org)
944    Date: 2005/01/18 12:00:00 CST
945    Tag: blume-20050118-profile
946    Description:
947    
948    Made time profiling code (interrupt handler) in runtime system aware
949    of new array representation.
950    
951    ----------------------------------------------------------------------
952    Name: Matthias Blume (blume (at) tti - c (dot) org)
953    Date: 2005/01/14 18:00:00 CST
954    Tag: blume-20050114-heap2exec
955    Description:
956    
957    Implemented new (but still experimental) heap2exec facility.  This is
958    tested under Mac OS X and should work under Linux (will test shortly).
959    It will probably also work on the Sparc (will test some time later).
960    
961      - removed old "HACKED_STANDALONE" hack from runtime
962    
963    To be able to test this, uncomment the request for "heap2asm" in
964    config/targets prior to installation.  (Notice that this is different
965    from "heap2exec" mentioned below.  Not a typo.)
966    
967    To perform an actual test, run the command
968    
969       $ bin/heap2exec heapfile execfile
970    
971    (You can put heap2exec on your shell's path.)
972    
973    For example, run
974    
975      $ bin/heap2exec bin/.heap/ml-yacc.ppc-darwin mly
976    
977    This will create a standalone executable called "mly" which you can
978    then invoke directly as a command.
979    
980    ----------------------------------------------------------------------
981    Name: Matthias Blume (blume (at) tti - c (dot) org)
982    Date: 2005/01/07 11:44:00 CST
983    Tag: blume-20050107-mlstring
984    Description:
985    
986    fixed off-by-one error in ML_STRING macro (globals.c)
987    
988    ----------------------------------------------------------------------
989    Name: Matthias Blume (blume (at) tti - c (dot) org)
990    Date: 2004/12/23 18:00:00 CST
991    Tag: blume-20041223-santa
992    Description:
993    
994    Made ml-build script "smarter" (but only very little).
995    
996    ----------------------------------------------------------------------
997    Name: Matthias Blume (blume (at) tti - c (dot) org)
998    Date: 2004/12/21 15:05:00 CST
999    Tag: blume-20041221-longlong
1000    Description:
1001    
1002    * Implemented access to signed and unsigned long long data in NLFFI.
1003    (The parameter-passing part of the picture has not complete. But
1004    data structure access seems to work.)
1005    
1006    * Fixed CM's incorrect assumption that the PPC is little-endian.
1007      (On the Mac, it is big-endian.  And that's currently our only
1008      PPC platform.)
1009    
1010    ----------------------------------------------------------------------
1011    Name: Matthias Blume (blume (at) tti - c (dot) org)
1012    Date: 2004/12/21 12:50:00 CST
1013    Tag: blume-20041221-memory
1014    Description:
1015    
1016    Some cleanup in the $c/memory.cm library: separated some concerns by
1017    moving allocation code and memory access code each into their own
1018    files.
1019    
1020    ----------------------------------------------------------------------
1021    Name: Allen Leung (leunga (at) reservoir (dot) com)
1022    Date: 2004/12/17 16:12:00 EST
1023    Tag: leunga-20041217-cygwin-smlnj-home
1024    Description:
1025    
1026        The Unix I/O library of SML/NJ on cygwin does not understand
1027    Windows style pathname, so problems arise when SMLNJ_HOME is set
1028    to a Windows style pathname.  _run-sml now converts SMLNJ_HOME
1029    to a POSIX pathname on cygwin.
1030    
1031    ----------------------------------------------------------------------
1032    Name: Matthias Blume (blume (at) tti - c (dot) org)
1033    Date: 2004/12/16 13:35:00 CST
1034    Tag: Release_110_52
1035    Description:
1036    
1037    Last-minute changes incorporated into 110.52.  Release tag moved.
1038    
1039    The changes:
1040       - HashString.hashString' -> HashString.hashSubstring
1041       - bug fix in UnivariateStats
1042    
1043    ----------------------------------------------------------------------
1044    Name: Matthias Blume (blume (at) tti - c (dot) org)
1045    Date: 2004/12/15 23:40:00 CST
1046    Tag: blume-20041215-hashSubstring
1047    Description:
1048    
1049    - HashString.hashString' -> HashString.hashSubstring
1050    - corresponding changes in atom.sml
1051    - "de-compressed" (aka. un-obfuscated) code for UnivariateStats and
1052      added some comments
1053    
1054    ----------------------------------------------------------------------
1055    Name: Matthias Blume (blume (at) tti - c (dot) org)
1056    Date: 2004/12/15 15:30:00 CST
1057    Tag: (Release_110_52)
1058    Description:
1059    
1060    New working version (110.52).  NEW BOOTFILES!
1061    
1062    ----------------------------------------------------------------------
1063    Name: Matthias Blume (blume (at) tti - c (dot) org)
1064    Date: 2004/12/15 12:45:00 CST
1065    Tag: blume-20041215-spaces
1066    Description:
1067    
1068    More on the space problem (this time for Win32).
1069    
1070    ----------------------------------------------------------------------
1071    Name: Matthias Blume (blume (at) tti - c (dot) org)
1072    Date: 2004/12/14 17:30:00 CST
1073    Tag: blume-20041214-spaces
1074    Description:
1075    
1076    Hacked some of the scripts (in particular: the installer) to cope with
1077    spaces in filenames a bit better.  But beware: the current "solution"
1078    is likely still full of bugs and inherently incomplete.  (We need to
1079    do away with those shell scripts for a comprehensive solution.)
1080    
1081    ----------------------------------------------------------------------
1082    Name: Matthias Blume (blume (at) tti - c (dot) org)
1083    Date: 2004/12/13 14:45:00 CST
1084    Tag: blume-20041213-ml-makedepend
1085    Description:
1086    
1087    Fixed bug in code for ml-makedepend.
1088    
1089    ----------------------------------------------------------------------
1090    Name: Matthias Blume (blume (at) tti - c (dot) org)
1091    Date: 2004/12/09 16:30:00 CST
1092    Tag: blume-20041209-statistics
1093    Description:
1094    
1095    Added two simple but potentially useful statistics modules to SML/NJ Library.
1096    (See CHANGES file there.)
1097    
1098    ----------------------------------------------------------------------
1099    Name: Matthias Blume (blume (at) tti - c (dot) org)
1100    Date: 2004/12/01 16:50:00 CST
1101    Tag: blume-20041201-atom
1102    Description:
1103    
1104    smlnj-lib:
1105    
1106      Added function HashString.hashString' for substrings.
1107      Hand-inlined CharVector.foldl into HashString (for speed).
1108      Modified implementation of structure Atom to avoid extracting
1109      strings from substrings unless necessary.
1110      (Also see CHANGES file for smlnj-lib.)
1111    
1112    ----------------------------------------------------------------------
1113    Name: Matthias Blume (blume (at) tti - c (dot) org)
1114    Date: 2004/11/24 22:15:00 CST
1115    Tag: blume-20041124-cml
1116    Description:
1117    
1118    Made sure CML compiles when Position = Int64.
1119    
1120    ----------------------------------------------------------------------
1121    Name: Matthias Blume (blume (at) tti - c (dot) org)
1122    Date: 2004/11/24 14:30:00 CST
1123    Tag: blume-20041124-position
1124    Description:
1125    
1126    The compiler can now be compiled in a mode that makes structure Position
1127    equal to Int64.  The default, however, is unchanged (Position = Int31)
1128    for the time being.
1129    
1130    To enable 64-bit positions, use the following procedure:
1131    
1132    1. Start sml
1133    2. Autoload $smlnj/cmb.cm (if not already autoloaded)
1134    3. Type
1135          #set (CMB.symval "USE_64_BIT_POSITIONS") (SOME 1);
1136    4. Run CMB.make() as usual.
1137    
1138    This is barely tested.  The only test so far was a little SML program
1139    counting the number of characters in an 8-gigabyte file by
1140    reading it character-by-character.  That test was successful.
1141    
1142    In support of 64-bit positions, a number of new functions have been
1143    added to the runtime system.
1144    
1145    ----------------------------------------------------------------------
1146    Name: Matthias Blume (blume (at) tti - c (dot) org)
1147    Date: 2004/11/23 14:45:00 CST
1148    Tag: blume-20041123-useFile
1149    Description:
1150    
1151    Fixed a problem with unhelpful error messages related to problems with
1152    .cm- or .sml files that appear as part of the sml command line.
1153    
1154    ----------------------------------------------------------------------
1155    Name: Matthias Blume (blume (at) tti - c (dot) org)
1156    Date: 2004/11/18 15:40:00 CST
1157    Tag: Release_110_51
1158    Description:
1159    
1160    New working version (110.51).  NEW BOOTFILES!
1161    
1162    ----------------------------------------------------------------------
1163    Name: Matthias Blume (blume (at) tti - c (dot) org)
1164    Date: 2004/11/18 15:35:00 CST
1165    Tag: <none>
1166    Description:
1167    
1168    Enabled dlopen and friends for FreeBSD (as recommended by Johannes 5
1169    Joemann).
1170    
1171    ----------------------------------------------------------------------
1172    Name: Allen Leung (leunga (at) reservoir (dot) com)
1173    Date: 2004/11/17 16:05:21 EST 2004
1174    Tag: leunga-20041117-mlrisc-live-kill
1175    Description:
1176    
1177       Added support for MLTree constructs LIVE and KILL
1178    to all the architectures.
1179    
1180    ----------------------------------------------------------------------
1181    Name: Matthias Blume (blume (at) tti - c (dot) org)
1182    Date: 2004/11/13 00:20:00 CST
1183    Tag: blume-20041113-versiontool
1184    Description:
1185    
1186    - Stripped down the versiontool: It now only handles the version number.
1187      The date string is generated at bootstrap time (during makeml).
1188    
1189    - In a previous commit, fixed a minor issue with how polyequal is being
1190      translated.  In particular, the code now "looks through" abstractions.
1191      This results in slightly fewer polyEqual warnings and hopefully slightly
1192      more efficient code.  Important examples for where this matters are
1193      the new int64 and word64 types.
1194    
1195    ----------------------------------------------------------------------
1196    Name: Matthias Blume (blume (at) tti - c (dot) org)
1197    Date: 2004/11/12 00:30:00 CST
1198    Tag: blume-20041112-int64
1199    Description:
1200    
1201    Structure Int64 fully hooked in.  (The implementation is not very
1202    efficient, though.)
1203    
1204    ----------------------------------------------------------------------
1205    Name: Matthias Blume (blume (at) tti - c (dot) org)
1206    Date: 2004/11/11 17:30:00 CST
1207    Tag: blume-20041111-more64
1208    Description:
1209    
1210    All the pieces of Word64 are now there, with the exception of the
1211    conversions from and to LargeWord. (Eventually these need to be identities,
1212    but for the time being they don't even make sense because LargeWord is
1213    32-bit wide.)
1214    
1215    Also started to add similar support for Int64, but major pieces of that
1216    are still missing.
1217    
1218    ----------------------------------------------------------------------
1219    Name: Matthias Blume (blume (at) tti - c (dot) org)
1220    Date: 2004/11/11 00:15:00 CST
1221    Tag: blume-20041111-word64
1222    Description:
1223    
1224    Structure Word64 is now (almost) complete, word literals and patterns
1225    seem to work.  There are a few odd pieces missing.  In particular,
1226    I didn't do the {from,to}LargeWord parts because LargeWord is still Word32
1227    at the moment.
1228    
1229    Making Word64 official would mean that LargeWord becomes Word64.  But
1230    this requires extreme care because most word-word conversions have to
1231    go through LargeWord, so making a mistake means loss of efficiency or
1232    worse.  Eventually there will be a solution similar to (but actually
1233    simpler than) what I did with IntInf.
1234    
1235    ----------------------------------------------------------------------
1236    Name: Matthias Blume (blume (at) tti - c (dot) org)
1237    Date: 2004/11/10 18:12:00 CST
1238    Tag: blume-20041110-64bit
1239    Description:
1240    
1241    More 64-bit hacking (but still not even half-way there yet).
1242    Also, some assorted improvements to the handling of 8-bit words.
1243    
1244    ----------------------------------------------------------------------
1245    Name: Matthias Blume (blume (at) tti - c (dot) org)
1246    Date: 2004/11/09 17:50:00 CST
1247    Tag: <none>
1248    Description:
1249    
1250    Started adding some infrastructure for supporting 64-bit int- and
1251    word-types.  (Still in its very early stages.)
1252    
1253    ----------------------------------------------------------------------
1254    Name: Matthias Blume (blume (at) tti - c (dot) org)
1255    Date: 2004/10/28 10:45:00 CDT
1256    Tag: Release_110_50
1257    Description:
1258    
1259    New working version (110.50).  NEW BOOTFILES!
1260    
1261                 =====================
1262    
1263    Also:
1264    
1265      - Changend config/srcarchiveurl from a file just
1266        containing the URL string into a file containing
1267        shell script code.  The code has access to the $VERSION variable.
1268      - Made corresponding changes to config/install.sh and config/unpack.
1269      - Default contents of config/srcarchiveurl uses $VERSION and
1270        normally does not have to be edited to reflect a version change.
1271    
1272      (As a result, a version change can be done by just editing
1273       config/version, the rest is now automatic.)
1274    
1275    ----------------------------------------------------------------------
1276    Name: Matthias Blume (blume (at) tti - c (dot) org)
1277    Date: 2004/10/27 17:50:00 CDT
1278    Tag: blume-20041027-btrace-msg
1279    Description:
1280    
1281    BackTrace.monitor now also reports the source of the exception that
1282    triggered the trace.
1283    
1284    ----------------------------------------------------------------------
1285    Name: Matthias Blume (blume (at) tti - c (dot) org)
1286    Date: 2004/10/27 17:20:00 CDT
1287    Tag: blume-20041027-x86-c-calls
1288    Description:
1289    
1290    This is the HISTORY entry for two earlier commits, both concerning
1291    the x86 c-calls code in MLRISC:
1292    
1293      - added a missing LOAD in the code that deals with struct arguments
1294      - made sure the caller does not add the wrong number of bytes to the
1295        stack pointer after a call of a function returning a struct
1296        (the callee already pops the implicit argument which points to
1297         the space reserved for the result)
1298    
1299    ----------------------------------------------------------------------
1300    Name: Allen Leung (leunga (at) reservoir (dot) com)
1301    Date: 2004/10/24 14:00:00 EST
1302    Tag: leunga-20041024-x86-gas-fucomip
1303    Description:
1304    
1305       John discovered a bug in the syntax of fucomip.
1306       The opcodes FU?COMIP? have been changed to
1307    
1308           fu?comip? %st(i), %st
1309    
1310    ----------------------------------------------------------------------
1311    Name: Matthias Blume (blume (at) tti - c (dot) org)
1312    Date: 2004/10/20 15:06:00 CDT
1313    Tag: blume-20041020-standalone-backtrace
1314    Description:
1315    
1316    Added a mechanism for getting back-trace information from standalone
1317    programs.  Here is how it works:
1318    
1319       1. The part of the program from which you want to get backtrace
1320          information (usually the whole program) should be wrapped with
1321          BackTrace.monitor.  This is a (unit->'a)->'a function, and your
1322          main program could be modified from something like
1323    
1324             fun main (pgm, args) = ...
1325    
1326         to
1327    
1328            fun main (pgm, args) = BackTrace.monitor (fn () => ...)
1329    
1330       2. To be able to access BackTrace.monitor, you have to add
1331          library $smlnj-tdp/plugins.cm to the .cm file that contains your
1332          main function.
1333    
1334       3. Remove all compiled code (i.e., all the .cm/ subdirectories that
1335          CM might have created in the past for your project).
1336    
1337       4. Build the system using this command line:
1338    
1339             ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
1340                      myprog.cm MyProg.main myprog
1341    
1342          instead of the usual
1343    
1344             ml-build myprog.cm MyProg.main myprog
1345    
1346    I changed a library name:
1347    
1348       $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
1349    
1350    New libraries:
1351    
1352       $smlnj-tdp/back-trace.cm
1353          -- when loaded causes the back-trace plugin to be installed
1354       $smlnj-tdp/coverage.cm
1355          -- when loaded causes the coverage plugin to be installed
1356    
1357    ----------------------------------------------------------------------
1358    Name: Matthias Blume (blume (at) tti - c (dot) org)
1359    Date: 2004/10/18 16:45:00 CDT
1360    Tag: blume-20041018-groupowner
1361    Description:
1362    
1363    Added an "obsolete" warning for the "group owner" syntax to CM's parser.
1364    
1365    Eliminated group owner specs from .cm files throughout the source tree.
1366    
1367    ----------------------------------------------------------------------
1368    Name: Matthias Blume (blume (at) tti - c (dot) org)
1369    Date: 2004/10/15 15:45:00 CDT
1370    Tag: blume-20041015-coverage
1371    Description:
1372    
1373    * Test coverage tool added!
1374    * Further reorganization of tracing-, debugging-, and profiling support:
1375    
1376        - moved original BTImp -- now called BackTrace -- into a separate
1377          library called $/trace-debug-profile.cm
1378        - eliminated all mentions of BTrace from SMLofNJ.Internals
1379        - only the instrumentation mechanism is now left in the compiler proper
1380        - BackTrace module is a plugin which is NOT plugged in by default
1381        - Coverage module is another such plugin
1382    
1383    To get the benefits of any of these plugin modules, the code in
1384    question must be compiled with tdp instrumentation turned on.  This
1385    can be done by setting SMLofNJ.Internals.TDP.mode to true.
1386    (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
1387    
1388    Plugins are selected at link time.  (Pre-compiled instrumented code
1389    can be re-loaded with different plugins in effect.)  When an
1390    instrumented module is linked, whatever plugins are at that time
1391    enabled will come into effect for that module.
1392    
1393    To enable the back-trace plugin, load library $/trace-debug-profile.cm
1394    and invoke BackTrace.install() (e.g., from the interactive prompt).
1395    To enable the coverage plugin, load the same library and invoke
1396    Coverage.install().
1397    
1398    Back-traces are generated automatically on uncaught exceptions and
1399    when the code in question explicitly invokes BackTrace.trigger().
1400    
1401    Coverage (and execution frequency-) information must be queried
1402    explicitly by calling Coverage.not_covered and Coverage.hot_spots.
1403    
1404    ----------------------------------------------------------------------
1405    Name: Matthias Blume (blume (at) tti - c (dot) org)
1406    Date: 2004/10/14 17:40:00 CDT
1407    Tag: blume-20041014-tdp-core
1408    Description:
1409    
1410    Snapshot of a significant overhaul of how the trace/debug/profile support
1411    is hooked into the system (specifically: Core and SMLofNJ.Internals).
1412    
1413    ----------------------------------------------------------------------
1414    Name: Matthias Blume (blume (at) tti - c (dot) org)
1415    Date: 2004/10/13 16:34:00 CDT
1416    Tag: blume-20041013-tdp
1417    Description:
1418    
1419    Some rationalization of names:
1420    
1421       structure BTrace -> structure TDPInstrument
1422       etc.
1423    
1424    This is is preparation of using the original back-trace
1425    instrumentation for other purposes.  "TDP" stands for
1426    Trace/Debug/Profile.
1427    
1428    The control flag controlling whether instrumentation is on or off is now
1429    registered under a different name, so instead of running sml as
1430    
1431     sml -Cinstrument.btrace-mode=true
1432    
1433    one has to say
1434    
1435     sml -Ctdp.instrument=true
1436    
1437    ----------------------------------------------------------------------
1438    Name: Matthias Blume (blume (at) tti - c (dot) org)
1439    Date: 2004/10/11 16:37:00 CDT
1440    Tag: blume-20041011-regions
1441    Description:
1442    
1443    Made some minor modifications to elabcore.sml to have source regions
1444    be propagated more tightly -- resulting in better (i.e., smaller)
1445    regions being reported in error- and debug messages.
1446    
1447    ----------------------------------------------------------------------
1448    Name: Matthias Blume (blume (at) tti - c (dot) org)
1449    Date: 2004/10/08 22:50:00 CDT
1450    Tag: blume-20041008-cmkw
1451    Description:
1452    
1453    Fixed handling of keywords in .cm files: After seeing "is" the lexer
1454    treats subsequent occurrences of "group", "library", "source", "is",
1455    "*", and "-" as ordinary identifiers rather than keywords.
1456    
1457    Most seriously, this fixes a problem with CM's "shell" tool.  The tool
1458    is supposed to accept a tool argument called "source", but this did
1459    not work because of the clash with the keyword.
1460    
1461    ----------------------------------------------------------------------
1462    Name: Matthias Blume (blume (at) tti - c (dot) org)
1463    Date: 2004/10/07 16:00:00 CDT
1464    Tag: blume-20041007-cleanup
1465    Description:
1466    
1467    Assorted cleanup work:
1468    
1469      - got rid of intstrmap in favor of using the library's
1470        hash table implementation
1471      - threw out most of the pathnames stuff, as it was not used anyway
1472      - simplified tokentable implementation
1473      - fixed some minor spelling errors
1474    
1475    ----------------------------------------------------------------------
1476    Name: Matthias Blume (blume (at) tti - c (dot) org)
1477    Date: 2004/10/06 15:15:15 CDT
1478    Tag: blume-20041006-handler
1479    Description:
1480    
1481    Cleaned up the absyn to reflect the invariant that HANDLE always
1482    carries a FNexp as part of the type definition.  This eliminates some
1483    superfluous sanity checks at runtime down the road.
1484    
1485    Some minor cleanup of the btrace code.
1486    
1487    ----------------------------------------------------------------------
1488    Name: Matthias Blume (blume (at) tti - c (dot) org)
1489    Date: 2004/10/01 10:20:30 CDT
1490    Tag: blume-20041001-slave
1491    Description:
1492    
1493    Added hack to make slave mode work in the presence of the version
1494    tool.  (Still, since the master does two passes over the code for
1495    CMB.make, the release number gets bumped twice when slaves are
1496    attached.  I don't know if this is worth fixing...)
1497    
1498    ----------------------------------------------------------------------
1499    Name: Matthias Blume (blume (at) tti - c (dot) org)
1500    Date: 2004/09/30 10:55:00 CDT
1501    Tag: blume-20040930-version
1502    Description:
1503    
1504    * Moved the "version" magic into its own little library under
1505      src/system/smlnj/internal.  This avoids expensive reconstruction of
1506      a stable src/compiler/core.cm.
1507    
1508    * At the same time, structure CompilerVersion is now known as
1509      structure SMLNJVersion.
1510    
1511    * Arranged for the version tool to NOT kick in when rebuilding the system
1512      (makeml -rebuild, fixpt).  Otherwise one would never reach a fixpoint.
1513      Also, loading the versiontool does not work when rebuilding the system
1514      because CM is not properly initialized at that time.
1515    
1516    ----------------------------------------------------------------------
1517    Name: Matthias Blume (blume (at) tti - c (dot) org)
1518    Date: 2004/09/29 14:00:00 CDT
1519    Tag: blume-20040929-autoversion
1520    Description:
1521    
1522    Implemented some CM magic to have
1523        file src/compiler/TopLevel/main/version.sml
1524    generated automagically.
1525    The version is taken from two files: config/version and config/release.
1526    The first is expected to contain a two-part version number such as 110.49.
1527    The second should contain a single number, but it may be missing.
1528    
1529    If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
1530    time the version tool is loaded (which is the first time you say CMB.make),
1531    then the tool will increment the value stored in config/release every
1532    time CMB.make is invoked.
1533    
1534    The binfile format is now insensitive to anything beyond the first
1535    two components of a version number, so bumping the release does not render
1536    binfiles incompatible.  Auto-bumping can be used to keep track of versions
1537    during development without invalidating existing binfiles.
1538    
1539    In any case, every CMB.make updates the date information in version.sml.
1540    (This is the date that is printed in the banner.)
1541    
1542    ----------------------------------------------------------------------
1543    Name: Matthias Blume (blume (at) tti - c (dot) org)
1544    Date: 2004/09/28 10:53:00 CDT
1545    Tag: blume-20040928-controls
1546    Description:
1547    
1548    Some cleanup of the controls code.
1549    
1550    ----------------------------------------------------------------------
1551    Name: Matthias Blume (blume (at) tti - c (dot) org)
1552    Date: 2004/09/27 22:08:00 CDT
1553    Tag: blume-20040927-controls
1554    Description:
1555    
1556    Added two pieces of functionality to the Controls interface:
1557    
1558    1.   val save'restore: 'a control -> unit -> unit
1559    
1560       grabs the current value of the control in stage 1 and restores it
1561       in stage 2.
1562    
1563    2.   val set' : 'a control * 'a -> unit -> unit
1564    
1565       stores the given value into the control in stage 2 (i.e., delayed)
1566       but does all error checking in stage 1.
1567       (This is for string controls that need to do parse their argument --
1568        something that might fail.  In some cases, notably in CM, one
1569        already knows the intended argument but wants to delay the actual
1570        assignment until a time when error recovery would be more difficult.)
1571    
1572    Changed the handling of controls in tool arguments to classes "sml" and
1573    "lazysml":
1574       - use Controls.save'restore as a more robust way of restoring the
1575         old value (in particular: without having to re-parse the string)
1576       - use controls to handle the "overload" keyword in the init group
1577         (I believe this change actually fixes a long-standing obscure bug.)
1578    
1579    ----------------------------------------------------------------------
1580    Name: Matthias Blume (blume (at) tti - c (dot) org)
1581    Date: 2004/09/27 17:00:00 CDT
1582    Tag: blume-20040927-lazysml
1583    Description:
1584    
1585    Added a new tool class called "lazysml" to CM's tool chest.  The only
1586    difference to "sml" is that compilation is done with Control.lazysml
1587    set to true.  A source of class "lazysml" is automatically recognized
1588    by a file name suffix of ".lml".
1589    
1590    In addition to the above feature, the original class "sml" now also
1591    supports a tool argument "lazy" which has the same effect.  As a
1592    result, the following three lines are equivalent:
1593    
1594        foo.sml : lazysml
1595        foo.sml : sml (lazy)
1596        foo.sml (lazy)
1597    
1598    The setting goes into effect both during parsing and during
1599    compilation.  The original setting is restored right after parsing and
1600    after compilation, respectively.
1601    
1602    In addition to all the above, there is also a general mechanism to set
1603    ANY of the "controls" that are available at the command line via
1604    "-C..." on a per-sml-file basis.  The same rules that apply for "lazy"
1605    apply as well. (In fact, "lazy" is implemented as a special case of
1606    the general mechanism.)
1607    
1608    The .cm file syntax uses a new keyword tool argument called "with".
1609    There are several ways of indicating the desired settings:
1610    
1611        foo.sml (with:parser.quotations=true)
1612        foo.sml (with:(name:parser.quotations value:true))
1613        foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
1614        foo.sml (with:(name1=value1 name2=value2 ...))
1615        foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
1616    
1617        etc.
1618    
1619    Another possible abbreviation is to leave out the =v or value:v part
1620    if the name refers to a boolean control (in which case the value is
1621    taken to be true).  Thus, one could get lazy sml also by saying:
1622    
1623        foo.sml (with:parser.lazy-keyword=true)
1624        foo.sml (with:parser.lazy-keyword)
1625        foo.sml (with:(name:parser.lazy-keyword value:true))
1626        foo.sml (with:(name:parser.lazy-keyword))
1627    
1628    ----------------------------------------------------------------------
1629    Name: Matthias Blume (blume (at) tti - c (dot) org)
1630    Date: 2004/09/24 16:22:00 CDT
1631    Tag: blume-20040924-ppc-long-branch
1632    Description:
1633    
1634    Turned message about "emiting long form of branch" off by default.
1635    Added a control flag to turn it back on when desired.
1636    
1637    ----------------------------------------------------------------------
1638    Name: Matthias Blume (blume (at) tti - c (dot) org)
1639    Date: 2004/09/24 16:05:00 CDT
1640    Tag: blume-20040924-rounding
1641    Description:
1642    
1643    Applied patch for setting rounding modes under Mac OS X.  Thanks to
1644    Melissa O'Neill for providing the code!
1645    
1646    ----------------------------------------------------------------------
1647    Name: Matthias Blume (blume (at) tti - c (dot) org)
1648    Date: 2004/09/23 17:30:00 CDT
1649    Tag: blume-20040923-envvars
1650    Description:
1651    
1652    1. Changed definition of type ControlRegistry.registry_tree to
1653       include control_info (i.e., the name of the controlling environment
1654       variable).
1655    
1656    2. Added command-line flags -e and -E to print the names of environment
1657       variables that can be used to control internal settings.
1658       (This uses the new API mentioned in 1.)
1659    
1660    ----------------------------------------------------------------------
1661    Name: Matthias Blume (blume (at) tti - c (dot) org)
1662    Date: 2004/09/13 16:50:00 CDT
1663    Tag: Release_110_49
1664    Description:
1665    
1666    New working version (110.49).  NEW BOOTFILES!
1667    
1668    ----------------------------------------------------------------------
1669    Name: Matthias Blume
1670    Date: 2004/09/13 16:20:00 CDT
1671    Tag: blume-20040913-config-mlrisc
1672    Description:
1673    
1674    Put target "mlrisc" back into the default list.
1675    (There is no harm in having it, and some users have expressed their
1676    wish to have "mlrisc" included by default.)
1677    
1678    ----------------------------------------------------------------------
1679    Name: John Reppy
1680    Date: 2004/09/13
1681    Tag: jhr-20040913-signals
1682    Description:
1683    
1684    Fixed the signal masking code to properly nest mask/unmask operations
1685    on a per-signal basis.
1686    
1687    ----------------------------------------------------------------------
1688    Name: Matthias Blume (blume (at) tti - c (dot) org)
1689    Date: 2004/09/08 13:20:00 CDT
1690    Tag: blume-20040908-heap-magic
1691    Description:
1692    
1693    Bumped the heap macig number to 0x09082004 to account for the changed
1694    layout of the ML frame under MacOS X.
1695    
1696    ----------------------------------------------------------------------
1697    Name: Allen Leung (leunga (at) reservoir (dot) com)
1698    Date: 2004/09/03 11:26:00 EST
1699    Tag: leunga-20040903-cygwin-install
1700    Description:
1701    
1702       Added a patch to _arch-n-opsys to enable the Cygwin runtime.
1703    The Cygwin runtime is turned on by setting the environment
1704    variable SMLNJ_CYGWIN_RUNTIME to 1.
1705    
1706    ----------------------------------------------------------------------
1707    Name: Matthias Blume (blume (at) tti - c (dot) org)
1708    Date: 2004/08/31 17:15:00 CDT
1709    Tag: blume-20040831-core
1710    Description:
1711    
1712    Added some exports to src/compiler/core.cm upon request by J. Joemann.
1713    
1714    ----------------------------------------------------------------------
1715    Name: Matthias Blume (blume (at) tti - c (dot) org)
1716    Date: 2004/08/30 17:55:00 CDT
1717    Tag: blume-20040830-installer
1718    Description:
1719    
1720    Upon request by Johannes Joemann:
1721    
1722    - improved ML code of installer to fall back to coping when renaming
1723      fails (i.e., when source and target are on different file systems);
1724      the code compiles but has yet to be tested in anger
1725    - removed mlrisc from list of default targets (config/targets)
1726    
1727    ----------------------------------------------------------------------
1728    Name: Matthias Blume (blume (at) tti - c (dot) org)
1729    Date: 2004/08/27 17:20:00 CDT
1730    Tag: blume-20040827-ptreql
1731    Description:
1732    
1733    Added ptreql primop to structure InlineT (upon request from Larry
1734    Paulson).
1735    
1736    ----------------------------------------------------------------------
1737    Name: Allen Leung (leunga (at) reservoir (dot) com)
1738    Date: 2004/08/15 21:21:00 EST
1739    Tag: leunga-110_48-udgraph
1740    Description:
1741    
1742    Another bug fix from Carl Hauser:
1743    
1744    diff /net/niflab/smlnj48/src/MLRISC/graphs/udgraph.sml udgraph.sml
1745    > 48c48
1746    > <              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then es else
1747    > e::L)
1748    > ---
1749    > >              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then L else e::L)
1750    > Without this, any deletion of an edge in an undirected graph does severe
1751    > violence to the graph.
1752    
1753    ----------------------------------------------------------------------
1754    Name: Allen Leung (leunga (at) reservoir (dot) com)
1755    Date: 2004/08/10 23:35:00 EST
1756    Tag: leunga-110_48-ppc
1757    Description:
1758    
1759       The IBM/MacOS syntax switch on PPC was incorrectly swapped.
1760    
1761    ----------------------------------------------------------------------
1762    Name: Matthias Blume (blume (at) tti - c (dot) org)
1763    Date: 2004/08/10 12:00:00 CDT
1764    Tag: Release_110_48
1765    Description:
1766    
1767    New working version (110.48).  NEW BOOTFILES!
1768    
1769    ----------------------------------------------------------------------
1770    Name: Allen Leung (leunga (at) reservoir (dot) com)
1771    Date: 2004/08/09 12:21:00 EST
1772    Tag: leunga-110_47-dijsktra
1773    Description:
1774    
1775    Bug fix from Carl Hauser:
1776    
1777    single_source_shortest_paths in dijkstra.sml was observed to get wrong
1778    answers (by comparing to single_source_shortest_paths in bellman-ford.sml).
1779    
1780    The problem is that following the expression A.update(dist,s,Num.zero)
1781    it is necessary to update the priority queue using Q.decreaseWeight(Q,s).
1782    
1783    ----------------------------------------------------------------------
1784    Name: Matthias Blume (blume (at) tti - c (dot) org)
1785    Date: 2004/08/06 18:10:00 CDT
1786    Tag: blume-20040806-cmdline
1787    Description:
1788    
1789    Fiddled with handling of command-line options:
1790    
1791      * sml now quits after processing the command line
1792        if -H, -S, -h<n>, or -s<n> appears as the last
1793        command-line argument
1794      * a new option -q terminates the session when encountered on
1795        the command line; subsequent arguments will be ignored
1796      * bug fixes: short (erroneous) arguments are no longer ignored
1797        completely
1798    
1799    ----------------------------------------------------------------------
1800    Name: Allen Leung (leunga (at) reservoir (dot) com)
1801    Date: 2004/08/04 18:17:00 EST
1802    Tag: leunga-110_47-ppc-ibm-asm
1803    Description:
1804    
1805      - Added minimal IBM assembly syntax support for PowerPC.
1806    
1807      - Cygwin: manually changed the file cygwin.def.  Some exported symbols have
1808        been altered in the runtime.  We need an automatic way to keep the file
1809        in sync.
1810    
1811    ----------------------------------------------------------------------
1812    Name: Matthias Blume (blume (at) tti - c (dot) org)
1813    Date: 2004/08/04 14:00:00 CDT
1814    Tag: Release_110_47
1815    Description:
1816    
1817    New working version (110.47).  NEW BOOTFILES!
1818    
1819    ----------------------------------------------------------------------
1820    Name: Matthias Blume (blume (at) tti - c (dot) org)
1821    Date: 2004/08/03 14:25:00 CDT
1822    Tag: blume-20040803-callingconv
1823    Description:
1824    
1825    Added low-level support for choosing C calling conventions by
1826    twiddling the type of rawccall.  (See
1827    src/compiler/Semant/types/cproto.sml for details.)
1828    
1829    ----------------------------------------------------------------------
1830    Name: Matthias Blume (blume (at) tti - c (dot) org)
1831    Date: 2004/08/02 15:55:00 CDT
1832    Tag: blume-20040802-backout
1833    Description:
1834    
1835    Backed out of change to win32-filesys.c.  The earlier patch to
1836    get_file_time caused CM to produce files with the wrong time stamp.
1837    
1838    ----------------------------------------------------------------------
1839    Name: Matthias Blume (blume (at) tti - c (dot) org)
1840    Date: 2004/08/02 14:45:00 CDT
1841    Tag: blume-20040802-nlffi-win32
1842    Description:
1843    
1844    Added NLFFI support for Win32, adapted from a patch provided by David
1845    Hansel.  This is currently completely untested.  Also, the issue
1846    concerning stdcall vs. ccall is still unresolved.
1847    
1848    ----------------------------------------------------------------------
1849    Name: Matthias Blume (blume (at) tti - c (dot) org)
1850    Date: 2004/07/30 17:55:00 CDT
1851    Tag: blume-20040730-various
1852    Description:
1853    
1854    Gearing up towards 110.47...
1855    
1856    - various minor bugfixes to ml-nlffigen
1857    - a beginning of a manual for nlffi
1858    
1859    - eliminated 'export name=value' in config/install.sh as this does
1860      not work with certain versions of /bin/sh
1861      (Thanks to David King at Motorola for catching this.)
1862    
1863    - several bugfixes provided or suggested by David Hansel at Reactive Systems:
1864      - added a test for tm==NULL to gmtime.c and localtime.c
1865      - applied patch for incorrect GetFileTime under win32
1866      - toSeconds -> toMilliseconds in Win32/win32-process.sml
1867    
1868    ----------------------------------------------------------------------
1869    Name: Matthias Blume (blume (at) tti - c (dot) org)
1870    Date: 2004/07/21 18:20:00 CDT
1871    Tag: blume-20040721-nlffigen
1872    Description:
1873    
1874    - Fixed minor issue in ml-nlffigen: Now generate structure T_foo
1875      for a typedef to an incomplete type, but leave out the "typ" member.
1876      (This is just for consistency.)
1877    - Started to produce what is supposed to become better (i.e., comprehensive)
1878      documentation of what ml-nlffigen does and produces.
1879    
1880    ----------------------------------------------------------------------
1881    Name: Matthias Blume (blume (at) tti - c (dot) org)
1882    Date: 2004/07/14 16:25:00 CDT
1883    Tag: blume-20040714-union
1884    Description:
1885    
1886    Added C_UNION to c-calls/c-types.sml and updated the machinery
1887    (ml-nlffigen, cproto.sml) that conveys C function interface
1888    information to the code generator.
1889    
1890    However, the actual architecture-specific implementation of function
1891    arguments and results that are C unions is still not implemented.
1892    
1893    ----------------------------------------------------------------------
1894    Name: Allen Leung (leunga (at) reservoir (dot) com)
1895    Date: 2004/07/14 14:38:00 EST
1896    Tag: leunga-110_46_1-ppc-lwzu
1897    Description:
1898    
1899        Added these instructions to the PowerPC architecture:
1900        LBZU(X), LHZU(X), LWZU(X),
1901        STWU(X), STFDU, STFSU
1902    
1903        etc...
1904    
1905        Note: I haven't added their instruction encoding into the description.
1906    
1907    ----------------------------------------------------------------------
1908    Name: Allen Leung (leunga (at) reservoir (dot) com)
1909    Date: 2004/07/13 15:04:00 EST
1910    Tag: leunga-110_46_1-ppc-lwarx
1911    Description:
1912    
1913       Added the two instructions LWARX and STWCX to the PowerPC
1914    instruction set.
1915    
1916       A (untested) rewrite of loop-structure.sml.  The old version
1917    is completely broken.
1918    
1919    ----------------------------------------------------------------------
1920    Name: Matthias Blume (blume (at) tti - c (dot) org)
1921    Date: 2004/07/13 13:50:00 CDT
1922    Tag: blume-20040713-nlffi
1923    Description:
1924    
1925    - use paramAlloc to report c-calls with too many arguments
1926      (for PPC version where parameter area is pre-allocated)
1927    - added ccall_maxargspace to machspec (to implement the above)
1928    - made "make" commend in CM's "make" tool configurable
1929    - added option (default: on) for passing the name of the SML/NJ's "bin"
1930      directory to "make"; the call looks like this:
1931    
1932         make <options> SMLNJ_BINDIR=<dir> <target>
1933    
1934      This can be used by the Makefile to, e.g., pick the "right" version
1935      of ml-nlffigen.
1936    - minor code tweaks
1937    
1938    ----------------------------------------------------------------------
1939    Name: Matthias Blume (blume (at) tti - c (dot) org)
1940    Date: 2004/07/12 22:50:00 CDT
1941    Tag: blume-110_46_1-macosx-nlffi
1942    Description:
1943    
1944    NLFFI under Mac OS X now working (sort of).  This is largely untested,
1945    though.
1946    
1947    Note:  1. You have to make a new, clean build of the runtime system.
1948           2. There are new BOOTFILES, you have to use them!
1949              (Doing the bootstrap process yourself would be *very* painful!
1950               If you absolutely have to do it, build the system under
1951               a different architecture and then cross-compile.)
1952    
1953    Version bumped to 110.46.1 to account for runtime data format changes.
1954    
1955    ----------------------------------------------------------------------
1956    Name: Matthias Blume (blume (at) tti - c (dot) org)
1957    Date: 2004/06/18 14:30:00 CDT
1958    Tag: blume-20040618-unix
1959    Description:
1960    
1961    Changed the implementation of structure Unix so that the same stream
1962    is returned every time one of the {text,bin}{In,Out}streamOf functions
1963    is invoked on the same proc.  This is not what the spec currently
1964    says -- although IMO it arguably should.  (See discussion below.)
1965    
1966    ----------------------------------------------------------------------
1967    Name: Matthias Blume (blume (at) tti - c (dot) org)
1968    Date: 2004/06/17 18:15:00 CDT
1969    Tag: Release_110_46
1970    Description:
1971    
1972    New working version (110.46).  NEW BOOTFILES!
1973    
1974    ----------------------------------------------------------------------
1975    Name: Matthias Blume (blume (at) tti - c (dot) org)
1976    Date: 2004/06/17 17:20:00 CDT
1977    Tag: blume-20040617-timer-unix
1978    Description:
1979    
1980    Changed the interface of structures Timer and Unix to match the most
1981    recent Basis spec.
1982    
1983    In the case of Unix there still seems to be an open/weird issue:
1984    
1985       The {text,bin}{In,Out}streamOf functions are supposed to create
1986       fresh streams whenever they are called -- as opposed to have them
1987       return the same stream every time.  This design is supposed to
1988       prevent space leaks caused by proc values hanging on to streams.
1989    
1990       The reap function, on the other hand, is supposed to close the
1991       streams.  This cannot be done without having a handle on the
1992       stream in proc after all...
1993    
1994    I took the liberty to implement the following stopgap solution:
1995    
1996      The proc value hangs on to the most recently created stream(s).
1997      Reap closes those.  If either or both of the two streams hadn't
1998      been created at all yet, then reap will close the corresponding
1999      file descriptors directly.
2000    
2001    PS: I don't understand the original space leak argument anymore.  If
2002    a proc hangs on to the imperative stream, then I/O operations on those
2003    will advance the state of the cached stream and avoid the space leak.
2004    
2005    ----------------------------------------------------------------------
2006    Name: Matthias Blume (blume (at) tti - c (dot) org)
2007    Date: 2004/05/28 16:45:00 CDT
2008    Tag: blume-20040528-basis
2009    Description:
2010    
2011    Added signature PACK_REAL and exported functor PrimIO.
2012    
2013    ----------------------------------------------------------------------
2014    Name: Matthias Blume (blume (at) tti - c (dot) org)
2015    Date: 2004/05/25 16:00:00 CDT
2016    Tag: blume-20040525-group-owner
2017    Description:
2018    
2019    CM now ignores (but still accepts) the "owner" information in group
2020    descriptions.  The owner of a group is its next enclosing
2021    library. Each group must have a unique owner.  (There is a virtual
2022    "toplevel" library that owns groups which are not nested within a real
2023    library.)  Previously, each group had to explicitly declare its owner,
2024    and CM would check that such a declaration is correct.  The new scheme
2025    is to have CM check that for each group there is precisely one owning
2026    library.
2027    
2028    The advantage of the new scheme is that the programmer no longer needs
2029    to maintain the somewhat annoying owner information.  The downside is
2030    that CM cannot enforce the ownership rule across multiple runs of
2031    CM.make.  Fortunately, enclosing the same group in two different
2032    libraries A and B which are not part of the same program does not
2033    cause real problems.
2034    
2035    ----------------------------------------------------------------------
2036    Name: Matthias Blume (blume (at) tti - c (dot) org)
2037    Date: 2004/05/20 16:00:00 CDT
2038    Tag: blume-20040520-win32
2039    Description:
2040    
2041    Made the win32 version work again.  (Strangely, a misplaced comma had
2042    slipped into win32-process.c which prevented the runtime from being
2043    compiled correctly.)
2044    
2045    Also, included a minor addition to ml-build.bat analogous to what was
2046    done in blume-20040519-ml-build.
2047    
2048    ----------------------------------------------------------------------
2049    Name: Matthias Blume (blume (at) tti - c (dot) org)
2050    Date: 2004/05/19 22:10:00 CDT
2051    Tag: blume-20040519-ml-build
2052    Description:
2053    
2054    Arranged for ml-build to clean up after itself a little bit better.
2055    The script generates a temporary SML source file and compiles it using
2056    CM, so CM generates metadata (GUID, SKEL, objectfile) for it.  It now
2057    gets rid of those at the end, so they don't accumulate under .cm.
2058    
2059    This required a minor change to install.sh because the name of the
2060    metadata directory (default: .cm) is actually configurable at
2061    installation time.
2062    
2063    ----------------------------------------------------------------------
2064    Name: Matthias Blume (blume (at) tti - c (dot) org)
2065    Date: 2004/05/18 15:50:00 CDT
2066    Tag: blume-20040518-mkreader
2067    Description:
2068    
2069    Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
2070    implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
2071    
2072    ----------------------------------------------------------------------
2073    Name: Matthias Blume (blume (at) tti - c (dot) org)
2074    Date: 2004/05/11 14:35:00 CDT
2075    Tag: blume-20040511-win32sock
2076    Description:
2077    
2078    Added previously missing support for many socket-related functions
2079    under win32.  Thanks to David Hansel <hansel@reactive-systems.com>
2080    for the voluminous patch!
2081    
2082    (I have not tested this patch under win32 yet.)
2083    
2084    Here is David's e-mail:
2085    
2086    Hi,
2087    
2088    Attached to this email you find a diff against sml/nj 110.45
2089    that will enable socket support under Windows.
2090    
2091    To apply the patch (using unix or cygwin)
2092    1) gunzip runtime.diff.gz
2093    2) "cd" into "src/runtime" in the source tree of a fresh
2094       110.45 installation.
2095    3) patch -p 1 < [your/path/to]runtime.diff
2096    
2097    The code compiles fine but has NOT yet been extensively tested.
2098    I only ran a few tests for basic socket client functionality
2099    (which worked fine).  Especially the functions that use ioctl
2100    are not tested at all and might not work (see below).
2101    
2102    I implemented this since we want to move to a newer version of sml/nj
2103    but need socket support in order to use it.  This is the first time I
2104    even had a look at the sml/nj source,  so please review my changes
2105    before making this part of the distribution!  Here are a few issues
2106    that I think might be better for someone to solve who is more
2107    familiar with the sml/nj source (and socket programming):
2108    
2109    - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
2110      exception since I could not figure out what the windows equivalent
2111      of these functions is
2112    
2113    - In sockets-osdep.h there are a some #include statements that are
2114      only used in a few files that include sockets-osdep.h
2115    
2116    - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
2117      does not process its return value since I don't know how to
2118      report an error upwards.
2119    
2120    - It would probably be good to have a call to WSACleanup() when
2121      the library is unloaded (if there is such a possibility).
2122      Otherwise I think Windows will take care of this automatically
2123      when the process finishes.
2124    
2125    - I used ioctlsocket() as a replacement for ioctl() but I have
2126      no idea if that is actually the proper replacement on Windows.
2127    
2128    - All these issues are marked in the code by "FIXME" comments.
2129    
2130    We use sml/nj extensively in our products and are quite happy
2131    with it.  I hope this contribution will help you.
2132    
2133    Keep up the good work!
2134    
2135    David
2136    
2137    ----------------------------------------------------------------------
2138    Name: Matthias Blume (blume (at) tti - c (dot) org)
2139    Date: 2004/05/11 14:20:00 CDT
2140    Tag: blume-20040511-installml
2141    Description:
2142    
2143    Fixed two bugs in installml script.  (Thanks to Vesa A. Norrman for
2144    the patch.)
2145    
2146    ----------------------------------------------------------------------
2147    Name: Matthias Blume (blume (at) tti - c (dot) org)
2148    Date: 2004/05/11 14:05:00 CDT
2149    Tag: blume-20040511-nlffi-netbsd
2150    Description:
2151    
2152    Added support for nlffi under netbsd.  (Thanks to Vesa A. Norrman for
2153    the patch.)
2154    
2155    ----------------------------------------------------------------------
2156    Name: Matthias Blume (blume (at) tti - c (dot) org)
2157    Date: 2004/05/11 12:05:00 CDT
2158    Tag: blume-20040511-exports
2159    Description:
2160    
2161    As per request by Adam Chlipala <adam@hcoop.net>, extended various
2162    export lists in compiler-related .cm-files.
2163    
2164    ----------------------------------------------------------------------
2165    Name: Matthias Blume (blume (at) tti - c (dot) org)
2166    Date: 2004/05/11 11:35:00 CDT
2167    Tag: blume-20040511-allsource
2168    Description:
2169    
2170    The installer now honors the "src-smlnj" target again, although its meaning
2171    has changed from "all sources required for the compiler" to "all sources
2172    the installer knows about".  In other words, if you enable "src-smlnj"
2173    in the "targets" file, then the installer will pull in sources for
2174    everything.  (Notice that this refers to source code only.  Compiled
2175    code is still only installed for modules that were requested explicitly
2176    or which are required for other modules that were requested explicitly.)
2177    
2178    ----------------------------------------------------------------------
2179    Name: Matthias Blume (blume (at) tti - c (dot) org)
2180    Date: 2004/04/23 17:40:00 CDT
2181    Tag: blume-20040423-ieee-scan
2182    Description:
2183    
2184    Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
2185    in the exponent calculation we get INF or ZERO (depending on the mantissa
2186    and the sign of the exponent).
2187    
2188    ----------------------------------------------------------------------
2189    Name: Matthias Blume (blume (at) tti - c (dot) org)
2190    Date: 2004/04/23 10:40:00 CDT
2191    Tag: blume-20040423-ml-build
2192    Description:
2193    
2194    The ml-build script now terminates with a non-0 status when something
2195    goes wrong.
2196    
2197    ----------------------------------------------------------------------
2198    Name: Matthias Blume (blume (at) tti - c (dot) org)
2199    Date: 2004/04/22 16:35:00 CDT
2200    Tag: blume-20040422-Option
2201    Description:
2202    
2203    Made exception Option to be the same as exception Option.Option
2204    (as it should be).
2205    
2206    ----------------------------------------------------------------------
2207    Name: Allen Leung (leunga (at) reservoir (dot) com)
2208    Date: 2004/03/19 14:40:00 EST
2209    Tag: leunga-20040319-cygwin-nlffi
2210    Description:
2211    
2212    Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
2213    of SML/NJ.  The problem is that
2214    
2215       lib = dlopen(NULL, ...)
2216       f   = dlsym(lib, "malloc");
2217    
2218    does not work on Windows unless we explicitly export symbols
2219    such as 'malloc' during linking.  We fixed this by explicitly
2220    exporting the required symbols with the magic gcc incantation:
2221    
2222        -Wl,--export-all cygwin.def
2223    
2224    where cygwin.def is a file containing all the symbols that
2225    we wish to export.
2226    
2227    I suspect this is a Windows problem and we'll have to
2228    do the same (somehow with windows compilers) when
2229    we build the native win32 version with the system
2230    calls LoadLibrary/GetProcAddress.
2231    
2232    ----------------------------------------------------------------------
2233    Name: Matthias Blume (blume (at) tti - c (dot) org)
2234    Date: 2004/03/04 16:35:00 CST
2235    Tag: blume-20040304-intinf-fmt
2236    Description:
2237    
2238    Fixed problem with IntInf.fmt (sign would show up on the right instead
2239    of on the left for BIN, OCT, and HEX).
2240    
2241    ----------------------------------------------------------------------
2242    Name: Matthias Blume (blume (at) tti - c (dot) org)
2243    Date: 2004/03/04 11:25:00 CST
2244    Tag: blume-20040304-symlinks
2245    Description:
2246    
2247    Fixed problem with installer script (unix only) where bin/ml-yacc and
2248    friends pointed (via symlinks) to absolute locations instead of just
2249    .run-sml.  This was reported by Vesa A Norrman.
2250    
2251    ----------------------------------------------------------------------
2252    Name: Matthias Blume (blume (at) tti - c (dot) org)
2253    Date: 2004/02/13 14:50:00 CST
2254    Tag: Release_110_45
2255    Description:
2256    
2257    New working version (110.45). New bootfiles.
2258    
2259    ----------------------------------------------------------------------
2260    Name: Matthias Blume (blume (at) tti - c (dot) org)
2261    Date: 2004/01/26 15:15:15 CST
2262    Tag: blume-20040126-toplevel
2263    Description:
2264    
2265    Improved handling of exceptions at the interactive toplevel.
2266    
2267    ----------------------------------------------------------------------
2268    Name: Matthias Blume (blume (at) tti - c (dot) org)
2269    Date: 2004/01/26 11:25:00
2270    Tag: blume-20040126-app
2271    Description:
2272    
2273    Type of top-level "app" corrected.
2274    Added code for setting vp_limitPtrMask to Win32-specific runtime.
2275    
2276    ----------------------------------------------------------------------
2277    Name: Matthias Blume (blume (at) tti - c (dot) org)
2278    Date: 2003/11/18 17:10 CST
2279    Tag: blume-20031118-basis-fiddle
2280    Description:
2281    
2282    - changed Timer interface to what might become the spec
2283    - POSIX_FLAGS -> BIT_FLAGS according to spec
2284    - some other minor discrepancies wrt. spec eliminated
2285    
2286    ----------------------------------------------------------------------
2287    Name: Matthias Blume (blume (at) tti - c (dot) org)
2288    Date: 2003/11/06 12:00:00 CST
2289    Tag: Release_110_44
2290    Description:
2291    
2292    New working version (110.44). New bootfiles.
2293    
2294    ----------------------------------------------------------------------
2295    Name: Matthias Blume (blume (at) tti - c (dot) org)
2296    Date: 2003/11/04 11:50:00 CST
2297    Tag: blume-20031104-move-libraries
2298    Description:
2299    
2300    Eliminated the "dont_move_libraries" directive in config/targets.
2301    (The mechanism was broken and could not be fixed easily.  Moreover,
2302    there does not seem to be any reason not to move all libraries into
2303    lib during installation.  I originally implemented this directive as a
2304    backward-compatibility feature when I first introduced the new CM.
2305    Now that things have been stable for a long time and going back to the
2306    old CM is not an option, there is no reason to keep it around.)
2307    
2308    ----------------------------------------------------------------------
2309    Name: Matthias Blume (blume (at) tti - c (dot) org)
2310    Date: 2003/11/03 16:00:00 CST
2311    Tag: blume-20031103-installdir
2312    Description:
2313    
2314    Made installer honor INSTALLDIR variable again.  (Thanks to Chris
2315    Richards for pointing out the problem and providing the solution.)
2316    
2317    ----------------------------------------------------------------------
2318    Name: Matthias Blume (blume (at) tti - c (dot) org)
2319    Date: 2003/10/01 17:05:00 CDT
2320    Tag: blume-20031001-lal-mlrisc
2321    Description:
2322    
2323    MLRISC bug fix from Lal.
2324    
2325    ----------------------------------------------------------------------
2326    Name: Matthias Blume (blume (at) tti - c (dot) org)
2327    Date: 2003/09/30 16:10:00 CDT
2328    Tag: blume-20030930-primio-bat
2329    Description:
2330    
2331    1. Added openVector, nullRd, and nullWr to PRIM_IO.
2332    2. Improved .bat files (for Win32 port) to make things work under Win95.
2333       (thanks to Aaron S. Hawley for this one)
2334    
2335    ----------------------------------------------------------------------
2336    Name: Matthias Blume (blume (at) tti - c (dot) org)
2337    Date: 2003/09/26 16:05:00 CDT
2338    Tag: blume-20030926-wrappriv
2339    Description:
2340    
2341    Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
2342    
2343    ----------------------------------------------------------------------
2344    Name: Matthias Blume (blume (at) tti - c (dot) org)
2345    Date: 2003/09/26 15:00:00 CDT
2346    Tag: blume-20030926-110_43_3
2347    Description:
2348    
2349    - additional cleanup
2350    - version number bump, NEW BOOTFILES
2351    
2352    ----------------------------------------------------------------------
2353    Name: Matthias Blume (blume (at) tti - c (dot) org)
2354    Date: 2003/09/26 12:00:00 CDT
2355    Tag: blume-20030926-ppautoload
2356    Description:
2357    
2358    I modified the read-eval-print loop so that the autoloader gets
2359    invoked whenever the prettyprinter tries to look up a symbol that
2360    is not currently defined in the toplevel environment but which
2361    appears in CM's autoload registry.  As a result, we see far fewer of
2362    those ?.Foo.Bar.xxx names in the prettyprinter's output.
2363    
2364    In addition to this I tried to clean up some pieces of the Basis
2365    implementation (e.g., Socket, Word8Array) in order to prevent other
2366    instances of these ?.Foo.Bar.xxx names from being printed.
2367    
2368    The mechanism that picks names for types still needs some work, though.
2369    (Right now it seems that if there is a type A.t which is defined to
2370    be B.u, but B is unavailable at toplevel, then A.t gets printed as
2371    "?.B.u" although the perhaps more sensible solution would be to use
2372    "A.t" in this case.  In other words, the prettyprinter should follow
2373    a chain of DEFtycs not farther than there are corresponding toplevel
2374    names in the current environment.)
2375    
2376    ----------------------------------------------------------------------
2377    Name: Matthias Blume (blume (at) tti - c (dot) org)
2378    Date: 2003/09/24 16:31:00 CDT
2379    Tag: blume-20030924-installer
2380    Description:
2381    
2382    Another installer tweak:  All the ML code for the installer is now
2383    compiled during CMB.make and put into a little library called
2384    $smlnj/installer.cm.  The installation then simply invokes
2385    
2386       sml -m $smlnj/installer.cm
2387    
2388    and everything happens automagically.
2389    
2390    Win32:  ML code senses value of environment variable SMLNJ_HOME.
2391    Unix:   ML code senses values of environment variables ROOT, CONFIGDIR,
2392            and BINDIR.
2393    
2394    The new scheme guarantees that the ML code responsible for the installation
2395    is in sync with the APIs of the main system.  Also, the installer is
2396    somewhat faster because the installer script is precompiled.
2397    
2398    ----------------------------------------------------------------------
2399    Name: Matthias Blume (blume (at) tti - c (dot) org)
2400    Date: 2003/09/24 15:35:00 CDT
2401    Tag: blume-20030924-synsock
2402    Description:
2403    
2404    Added a signature SYNCHRONOUS_SOCKET to basis.cm.  This is like SOCKET
2405    but excludes all non-blocking operations.  Defined SOCKET (in Basis)
2406    and CML_SOCKET in terms of SYNCHRONOUS_SOCKET.  Removed superfluous
2407    implementations of non-blocking operations from CML's Socket
2408    structure.
2409    
2410    ----------------------------------------------------------------------
2411    Name: Matthias Blume (blume (at) tti - c (dot) org)
2412    Date: 2003/09/24 15:10:05 CDT
2413    Tag: blume-20030924-sockets
2414    Description:
2415    
2416    1. Fixed SOCKET API and implementation to match Basis spec.
2417       This required changing the internal representation of sockets to one
2418       that remembers (for each socket file descriptor) whether it is currently
2419       blocking or non-blocking.  This state is maintained lazily (i.e., a system
2420       call is made only if the state actually needs to change).
2421    
2422    2. OS-specific details of sockets were moved into separate files, thus
2423       making it possible to unify the bulk of the socket implementations
2424       between Unix and Win32.
2425    
2426    3. CML's socket API changed accordingly.
2427       (Note that we need to remove non-blocking functions from this API
2428       since they are redundant in the case of CML!)
2429    
2430    4. CML's socket implementation now makes use of non-blocking functions
2431       provided by Basis, thus removing all OS-dependent code from this part
2432       of CML.
2433    
2434    5. Changed Real64.precision from 52 to 53.  Minor cleanup in Real64 code.
2435    
2436    ----------------------------------------------------------------------
2437    Name: Matthias Blume (blume (at) tti - c (dot) org)
2438    Date: 2003/09/22 12:10:00 CDT
2439    Tag: blume-20030922-110_43_2
2440    Description:
2441    
2442    Made a new interim version and bootfiles for developer's bootstrapping
2443    convenience.
2444    
2445       110.43.2 -- NEW BOOTFILES
2446    
2447    ----------------------------------------------------------------------
2448    Name: Matthias Blume (blume (at) tti - c (dot) org)
2449    Date: 2003/09/19 15:55:00 CDT
2450    Tag: blume-20030919-cmdir
2451    Description:
2452    
2453    1. new-install.sh -> install.sh
2454    2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
2455    3. tweaked installer so that another name instead of .cm can be chosen
2456       at install time (by setting the CM_DIR_ARC environment variable
2457       during installation); once installation is complete, the name is
2458       fixed
2459    
2460    ----------------------------------------------------------------------
2461    Name: Matthias Blume (blume (at) tti - c (dot) org)
2462    Date: 2003/09/18 16:00:00 CDT
2463    Tag: blume-20030918-110_43_1
2464    Description:
2465    
2466    Made a new interim version and bootfiles for developer's bootstrapping
2467    convenience.
2468    
2469       110.43.1 -- NEW BOOTFILES
2470    
2471    ----------------------------------------------------------------------
2472    Name: Matthias Blume (blume (at) tti - c (dot) org)
2473    Date: 2003/09/18 15:20:00 CDT
2474    Tag: blume-20030918-misc
2475    Description:
2476    
2477    1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
2478       this seems to be controversial at the moment) and used those in
2479       Posix.ProcEnv.times.
2480    
2481    2. Added Time.{from,to}Nanoseconds to Time.
2482    
2483    3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
2484       For example, fromLargeInt never needs to look at more than 3 "big
2485       digits" to get its 53 bits of precision.
2486    
2487    ----------------------------------------------------------------------
2488    Name: Matthias Blume (blume (at) tti - c (dot) org)
2489    Date: 2003/09/17 16:30:00 CDT
2490    Tag: blume-20030917-real32-slices
2491    Description:
2492    
2493    Added an entry to the primitive environment
2494    (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
2495    added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
2496    
2497    Removed some of the "magic" constants in real64.sml and replaced them
2498    with code that generates these values from their corresponding
2499    integer counterparts.
2500    
2501    Made all(?) the slice-related changes to the Basis and made everything
2502    compile again...
2503    
2504    ----------------------------------------------------------------------
2505    Name: Matthias Blume (blume (at) tti - c (dot) org)
2506    Date: 2003/09/15 17:45:00 CDT
2507    Tag: blume-20030915-rbase
2508    Description:
2509    
2510    Fixed bug in Real.fromLargeInt.
2511    
2512    ----------------------------------------------------------------------
2513    Name: Matthias Blume (blume (at) tti - c (dot) org)
2514    Date: 2003/09/13 18:11:00 CDT
2515    Tag: blume-20030913-libinstall
2516    Description:
2517    
2518    Minor bugfix in config/libinstall (set anchor with path to
2519    standalone tool after installing it, otherwise libraries that
2520    need ml-lex or ml-yacc won't compile the first time the installer
2521    runs).
2522    
2523    ----------------------------------------------------------------------
2524    Name: Matthias Blume (blume (at) tti - c (dot) org)
2525    Date: 2003/09/12 11:45:00 CDT
2526    Tag: blume-20030912-various
2527    Description:
2528    
2529     - fixed bug in Real.toLargeInt
2530     - fixed bug in Posix.ProcEnv.times
2531     - changed inputLine functions to return an option
2532     - minor installer improvements / bugfixes
2533     - changed default @SMLalloc parameter for x86/celeron to 64k
2534    
2535    ----------------------------------------------------------------------
2536    Name: Matthias Blume (blume (at) tti - c (dot) org)
2537    Date: 2003/09/09 22:00:00 CDT
2538    Tag: Release_110_43
2539    Description:
2540    
2541        New working release 110.43.  New bootfiles.
2542    
2543    ----------------------------------------------------------------------
2544    Name: Matthias Blume (blume (at) tti - c (dot) org)
2545    Date: 2003/09/09 19:20:00 CDT
2546    Tag: blume-20030909-installer
2547    Description:
2548    
2549    Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
2550    Modified config/install.bat to take advantage of it.  Also modified
2551    config/install.sh (and called it config/new-install.sh) to take advantage
2552    of it on Unix systems.  (The SML code is (supposed to be) platform-
2553    independent.)
2554    
2555    The installer can now install everything under Win32
2556    as well as under *nix as long as it compiles.
2557    
2558    Other changes:
2559    
2560      - made CML compile again under Win32
2561      - made eXene compile under Win32 (by providing a fake structure UnixSock
2562        and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
2563      - fixed a bug in nowhere: it assumed that type OS.Process.status is the
2564        same as type int;  under Win32 it isn't
2565      - fixed some slice-related problems in the win32-specific parts of CML
2566      - added a functor argument "sameVol" to os-path-fn.sml in the Basis
2567        (under Win32, the volume name is case-insensitive, and the
2568        OS.Path code compares volume names for equality)
2569    
2570    ----------------------------------------------------------------------
2571    Name: Matthias Blume (blume (at) tti - c (dot) org)
2572    Date: 2003/09/08 11:55:00 CDT
2573    Tag: blume-20030908-fullpath
2574    Description:
2575    
2576    Made Win32 version of OS.FileSys.fullPath return current directory
2577    when given an empty string.  This is what the spec says, and incidentally,
2578    CM depends on it.  (CM otherwise goes into an infinite loop in certain
2579    cases when presented with the name of a non-existing .cm file.)
2580    
2581    ----------------------------------------------------------------------
2582    Name: Matthias Blume (blume (at) tti - c (dot) org)
2583    Date: 2003/09/04 16:30:00 CDT
2584    Tag: blume-20030905-slices-etc
2585    Description:
2586    
2587      1. Changed interface to vectors and arrays in Basis to match
2588         (draft) Basis spec.
2589      2. Added signatures and implementations of slices according to
2590         Basis spec.
2591      3. Edited source code throughout the system to make it compile again
2592         under 1. and 2.  (In some cases code had to be added to have it
2593         match the new signatures.)
2594      4. MLRISC should be backward-compatible: the copies of the originals
2595         of files that needed to change under 3. were retained, the .cm files
2596         check the compiler version number and use old versions when
2597         appropriate.
2598      5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
2599         dirstream -> string option (in accordance with Basis spec).
2600      6. When generating code that counts lines, ml-lex used function
2601         CharVector.foldli, taking advantage of its old interface.
2602         This has been replaced with the corresponding code from
2603         CharVectorSlice.  (html-lex must be re-lexed!)
2604      7. BitArray in smlnj-lib/Util has been extended/modified to match the
2605         new MONO_ARRAY signature.  (Do we need BitArraySlice?)
2606      8. Removed temporary additions (fromInternal, toInternal) from the
2607         (now obsolete) IntInf in smlnj-lib/Util.
2608      9. Cleaned up structure Byte.
2609     10. Added localOffset, scan, and fromString to Date (according to spec).
2610         Cleaned/corrected implementation of Date.
2611         (Still need to check for correctness; implement better canonicalizeDate.)
2612     11. Added "scan" to signature IEEE_REAL.
2613     12. Some improvements to IntInf [in particular: efficiency-hack for
2614         mod and rem when second operand is 2 (for parity checks).]
2615     13. Changed representation of type Time.time, using a single IntInf.int
2616         value counting microseconds.  This considerably simplified the
2617         implementation of structure Time.  We now support negative time
2618         values; scan and fromString handle signs.
2619     14. Functor PrimIO now takes two additional arguments (VectorSlice and
2620         ArraySlice).
2621    
2622    ----------------------------------------------------------------------
2623    Name: Matthias Blume (blume (at) tti - c (dot) org)
2624    Date: 2003/08/28 17:00:00 CDT
2625    Tag: blume-20030828-intinf
2626    Description:
2627    
2628    This is a major update which comes with a version number bump
2629    (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
2630    and an implementation of IntInf in the Basis.
2631    
2632    There are a fairly large number of related changes and updates throughout
2633    the system:
2634    
2635    Basis:
2636            - Implemented IntInf.
2637            - Made LargeInt a projection of IntInf (by filtering through INTEGER).
2638            - Added some missing Real64 operations, most notably Real.toLargeInt.
2639            - Added FixedInt as a synonym for Int32.
2640    
2641    compiler:
2642            * Added support for a built-in intinf type.
2643              - literals
2644              - pattern matching
2645              - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
2646              - overloading on literals and operations
2647    
2648            This required adding a primitive type intinf, some additional
2649            primops, and implementations for several non-trivial intinf
2650            operations in Core.  (The intinf type is completely abstract
2651            to the compiler; all operations get delegated back to the Core.)
2652    
2653            * Intinf equality is handled by polyequal.  However, the compiler
2654            does not print its usual warning in this case (since polyequal
2655            is the right thing to do there).
2656    
2657            * Improved the organization of structure InlineT.
2658    
2659            * A word about conversion primops:
2660            If conversions involving intinf do not cancel out during
2661            CPS contract, then the compiler must insert calls to Core functions.
2662            Since all core access must be resolved already during the FLINT
2663            translate phase, it would be too late a the time of CPS contract
2664            to add new Core calls.  For this reason, conversion primops
2665            for intinf carry two arguments:  1. the numeric argument that
2666            they are supposed to convert, and 2. the Core function that
2667            can help with this conversion if necessary.  If CPS contract
2668            eliminates a primop, then the associated Core function becomes
2669            dead and goes away.  Intinf conversion primops that do not get
2670            eliminated by CPS contract get rewritten into calls of their
2671            core functions by a separate, new phase.
2672    
2673    interactive system:
2674            - Control.Print.intinfDepth controls max length of intinf constants
2675            being printed. (Analogous to Control.Print.stringDepth.)
2676            - Cleanup in printutil and pputil: got rid of unused stuff and
2677            duplicates; replaced some of the code with code that makes better
2678            use of library functionality.
2679    
2680    CM:
2681            Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
2682            are no longer silent.
2683    
2684    CKIT:
2685            Fixed mismatched uses of Int32 and LargeInt.  I always decided
2686            in favor of LargeInt -- which is now the same as IntInf.
2687            CKIT-knowledgable people should check whether this is what's
2688            intended and otherwise change things back to using Int32 or
2689            FixedInt.
2690    
2691    Throughout the code:
2692            Started using IntInf.int literals and built-in operations
2693            (e.g., comparison with 0) where this seems appropriate.
2694    
2695    
2696    ----------------------------------------------------------------------
2697    Name: Dave MacQueen (dbm@cs.uchicago.edu)
2698    Date: 2003/08/13 11:36:00 CDT
2699    Tag: dbm-20030813-mcz-merge1
2700    Description:
2701    
2702    Merging changes from the mcz-branch development branch into trunk.
2703    These changes involve replacement of the emulated old prettyprinter
2704    interface with direct use of the SML/NJ Lib PP library, and fixing
2705    of a couple of bugs (895, 1186) relating to error messages.  A new
2706    prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
2707    has been added.
2708    
2709    ----------------------------------------------------------------------
2710    Name: Matthias Blume (blume (at) tti - c (dot) org)
2711    Date: 2003/08/11 15:45:00 CDT
2712    Tag: blume-20030811-windows
2713    Description:
2714    
2715    Version number bumped to 110.42.9.  NEW BOOTFILES!!!
2716    
2717        http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
2718    
2719    This patch restores SML/NJ's ability to run under win32.  There are a
2720    number of changes, including fixes for several bugs that had gone
2721    unnoticed until now:
2722    
2723      - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
2724        trying to run the win32 version from within cygwin.)
2725    
2726      - There are a number of simple .bat scripts that substitute for their
2727        corresponding Unix shell-scripts.  (See below.)
2728    
2729      - The internals of ml-build have been modified slightly.  The main
2730        difference is that instead of calling ".link-sml" (or link-sml.bat)
2731        using OS.Process.system, the ML process delegates this task back
2732        to the script.  Otherwise problems arise in mixed environments such
2733        as Cygwin where scripts look and work like Unix scripts, but
2734        where OS.Process.system cannot run them.
2735    
2736      - In CM, the srcpath pickler used native pathname syntax -- which
2737        is incorrect in the case of cross-compilation.  The new pickle format
2738        is independent of platform-specific naming conventions.
2739    
2740      - Path configuration files (such as lib/pathconfig) can now choose
2741        between native and standard syntax.  Placing a line of the form
2742    
2743            standard!
2744    
2745        into the file causes all subsequent paths to be interpreted using
2746        CM standard pathname syntax (= Unix conventions); a line
2747    
2748            native!
2749    
2750        switches back to native style.  This was needed so that
2751        path config files can be written portably, see src/system/pathconfig.
2752    
2753      - Runtime system:
2754    
2755          - win32-filesys.c:  get_file_time and set_file_time now
2756            access modification time, not creation time.
2757    
2758          - I/O code made aware of new array representation.
2759    
2760          - Bug fixes in X86.prim.masm.
2761    
2762       - src/system/makeml made aware of win32. (For use under cygwin
2763            and other Unix-environments for windows.)
2764    
2765       - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
2766         which caused BinIO.inputAll to fail consistently.
2767    
2768    .bat scripts:
2769    
2770       Windows .bat scripts assume that SMLNJ_HOME is defined.
2771    
2772       - sml.bat, ml-yacc.bat, ml-lex.bat:  Driver scripts for standalone
2773         applications (sml, ml-yacc, ml-lex).
2774       - ml-build.bat: analogous to ml-build.
2775       - config\install.bat:  Analogous to config/install.sh.  This requires
2776         that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
2777         (nmake etc. must be on the path, and vcvars32 must have been run.)
2778         Moreover, sources for ml-lex and ml-yacc need to exist under src,
2779         and the bootfile hierarchy must have been unpacked under
2780         sml.boot.x86-win32.
2781         The script is very primitive and does a poor job at error checking.
2782         It only installs the base system, ml-lex, and ml-yacc.  No other
2783         libraries are being installed (i.e., you get only those that
2784         are part of the compiler.)
2785       - link-sml.bat:  analogous to .link-sml, but not currently used
2786    
2787    Unrelated bug fixes:
2788    
2789      - ml-nlffigen now exports structures ST_* corresponding to incomplete
2790        types.
2791      - Added getDevice to PP/src/pp-debug-fn.sml.  (Would not compile
2792        otherwise.)
2793    
2794    ----------------------------------------------------------------------
2795    Name: Dave MacQueen (macqueen@cs.uchicago.edu)
2796    Date: 2003/06/17
2797    Tag: macqueen-20030617-bug895
2798    Description:
2799    
2800    Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
2801    Tag will be used for new development branch (mcz-branch) for
2802    use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
2803    
2804    ----------------------------------------------------------------------
2805    Name: Matthias Blume (blume (at) tti - c (dot) org)
2806    Date: 2003/05/27 16:55:00 CDT
2807    Tag: blume-20030527-polyeq
2808    Description:
2809    
2810    Tried to eliminated most cases of polymorphic equality.
2811    
2812    ----------------------------------------------------------------------
2813    Name: Matthias Blume (blume (at) tti - c (dot) org)
2814    Date: 2003/05/21 17:45:00 CDT
2815    Tag: blume-20030517-complete
2816    Description:
2817    
2818    Two changes:
2819    
2820      1. Added a flag for controlling whether non-exhaustive bindings will
2821         be treated as errors (default is false).
2822      2. Cleaned up the *entire* source tree so that CMB.make goes through
2823         without a single non-exhaustive match- or bind warning.
2824    
2825    ----------------------------------------------------------------------
2826    Name: Matthias Blume (blume (at) tti - c (dot) org)
2827    Date: 2003/05/17 10:20:00 CDT
2828    Tag: blume-20030517-absyn
2829    Description:
2830    
2831    1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
2832    
2833       This mainly affects the quality of error messages.  However, some
2834       of the code is now more straightforward than before. (Treatment of
2835       the above four constructs in translate.sml is much simpler than
2836       the "macro-expansion" that was going on before.  Plus, the mach-
2837       compiler no longer gets invoked just to be able to compile an
2838       if-expression.)
2839    
2840    2. The ErrorMsg.Error exception is now caught and absorbed by the
2841       interactive loop.
2842    
2843    ----------------------------------------------------------------------
2844    Name: Allen Leung
2845    Date: 2003/05/16 13:05:00 CDT
2846    Tag: leunga-20030516-cygwin-runtime
2847    Description:
2848    
2849        Ported the runtime system to cygwin, which uses the unix
2850    x86-unix bin files.  Missing/buggy features:
2851    
2852       o getnetbyname, getnetbyaddr: these functions seem to be missing in
2853         the Cygwin library.
2854       o Ctrl-C handling may be flaky.
2855       o Windows system calls and Windows I/O are not supported.
2856    
2857       A new set of binfiles is located at:
2858    
2859         http://www.dorsai.org/~leunga/boot.x86-unix.tgz
2860    
2861       This is only needed for bootstrapping the cygwin version of smlnj.
2862       Other x86 versions can use the existing binfiles.
2863    
2864    ----------------------------------------------------------------------
2865    Name: Matthias Blume
2866    Date: 2003/04/08 15:42:00 CDT
2867    Tag: blume-20030408-listpair
2868    Description:
2869    
2870    1. Added a target 'mlrisc' to installer.
2871    
2872    2. Added missing elements to structure ListPair.
2873    
2874    ----------------------------------------------------------------------
2875    Name: Allen Leung
2876    Date: 2003/01/07 10:40:00 EST
2877    Tag: leunga-20030107-int-rem
2878    Description:
2879    
2880    Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
2881    The arguments to the SUBL instruction were swapped.
2882    
2883    ----------------------------------------------------------------------
2884    Name: Matthias Blume
2885    Date: 2002/12/12 16:25:00 EST
2886    Tag: blume-20021212-risc-ra
2887    Description:
2888    
2889    Fixed a serious bug in the rewrite code for FP spilling/reloading that
2890    sent the RA into an infinite loop when floating point registers get
2891    spilled.  (Because of this bug, e.g., nucleic stopped compiling between
2892    110.37 and 110.38.)
2893    There was another set of potential problems related to the handling of
2894    MLRISC annotations (but those did not yet cause real problems, apparently).
2895    
2896    ----------------------------------------------------------------------
2897    Name: Matthias Blume
2898    Date: 2002/12/06 22:40:00 EST
2899    Tag: blume-20021206-cm-fileid
2900    Description:
2901    
2902    Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
2903    This fixes the problem of CM getting confused by files that suddenly
2904    change their identity (e.g., by getting unlinked and recreated by some
2905    text editor such as vi).  There might be a better/cheaper/cleaner way
2906    of doing this, but for now this will have to do.
2907    
2908    ----------------------------------------------------------------------
2909    Name: Matthias Blume
2910    Date: 2002/10/28 09:50:00 EST
2911    Tag: blume-20021028-typecheck
2912    Description:
2913    
2914    Exported structure Typecheck from $smlnj/viscomp/core.cm.
2915    
2916    ----------------------------------------------------------------------
2917    Name: Matthias Blume
2918    Date: 2002/10/17 09:10:00 EDT
2919    Tag: Release_110_42
2920    Description:
2921    
2922    In good old tradition, there has been a slight hiccup so that we have
2923    to patch 110.42 after the fact.   The old release tag has been replaced
2924    (see below).
2925    
2926    The change solves a problem with two competing approaches the
2927    configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
2928    each other's way.
2929    
2930    This change only affects the runtime system code and the installer script.
2931    (No new bootfiles.)
2932    
2933    ----------------------------------------------------------------------
2934    Name: Matthias Blume
2935    Date: 2002/10/16 12:00:00 EDT
2936    Tag: Release_110_42_removed
2937    Description:
2938    
2939    New working release.  New bootfiles.
2940    
2941    ----------------------------------------------------------------------
2942    Name: Matthias Blume
2943    Date: 2002/10/10 13:10:00 EDT
2944    Tag: blume-20021010-ppc-divs
2945    Description:
2946    
2947    The mltree operator DIVS must be implemented with an overflow check on
2948    the PPC because the hardware indicates divide-by-zero using "overflow" as
2949    well.
2950    
2951    ----------------------------------------------------------------------
2952    Name: Matthias Blume
2953    Date: 2002/07/23 11:45:00
2954    Tag: blume-20020723-smlnj-home
2955    Description:
2956    
2957    Sml now senses the SMLNJ_HOME environment variable.  If this is set,
2958    then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
2959    CM_PATHCONFIG is also set), the path configuration file is assumed
2960    to be in $SMLNJ_HOME/lib/pathconfig.  This way one can easily move
2961    the entire tree to some other place and everything will "just work".
2962    
2963    (Companion commands such as ml-build and ml-makedepend also sense this
2964    variable.)
2965    
2966    ----------------------------------------------------------------------
2967    Name: Matthias Blume
2968    Date: 2002/07/12 21:19:00 EDT
2969    Tag: blume-20020712-liveness
2970    Description:
2971    
2972    Exported two useful "step" functions from liveness module (MLRISC).
2973    
2974    ----------------------------------------------------------------------
2975    Name: Matthias Blume
2976    Date: 2002/07/05 16:00 EDT
2977    Tag: Release_110_41
2978    Description:
2979    
2980    New working release.  New bootfiles.
2981    
2982    ----------------------------------------------------------------------
2983    Name: Matthias Blume
2984    Date: 2002/07/05 10:25:00 EDT
2985    Tag: blume-20020705-btimp
2986    Description:
2987    
2988    Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
2989    other clients can set up backtracing support.
2990    
2991    ----------------------------------------------------------------------
2992    Name: Matthias Blume
2993    Date: 2002/06/25 17:23:00 EDT
2994    Tag: blume-20020625-fpmax
2995    Description:
2996    
2997    Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
2998    case.  (The sense of the isNaN test was reversed -- which made min and
2999    max always return their first argument.)
3000    
3001    ----------------------------------------------------------------------
3002    Name: Matthias Blume
3003    Date: 2002/06/11
3004    Tag: blume-20020611-unixpath
3005    Description:
3006    
3007    Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
3008    
3009    ----------------------------------------------------------------------
3010    Name: Matthias Blume
3011    Date: 2002/06/10 16:35:00 EDT
3012    Tag: blume-20020610-ieeereal
3013    Description:
3014    
3015    I back-ported my implementation of IEEEReal.fromString from the
3016    idlbasis-devel branch so that we can test it.
3017    
3018    Another small change is that ppDec tries to give more information
3019    than just "<sig>" in the case of functors.  However, this code is
3020    broken in some mysterious way if the functor's body's signature
3021    has not been declared by ascription but gets inferred from the
3022    implementation.  This needs fixing...
3023    
3024    ----------------------------------------------------------------------
3025    Name: Matthias Blume
3026    Date: 2002/05/31
3027    Tag: blume-20020531-btrace-mode
3028    Description:
3029    
3030    Resurrected SMLofNJ.Internals.BTrace.mode.  (It accidentally fell by
3031    the wayside when I switched over to using Controls everywhere.)
3032    
3033    ----------------------------------------------------------------------
3034    Name: Lal George
3035    Date: 2002/05/23 12:21:40 EDT
3036    Tag: george-20020523-visual-labels
3037    Description:
3038    
3039    Labels are now displayed in the graphical output to make
3040    the fall-through and target blocks obvious.
3041    
3042    ----------------------------------------------------------------------
3043    Name: Matthias Blume
3044    Date: 2002/05/22 11:03:00 EDT
3045    Tag: blume-20020522-shrink
3046    Description:
3047    
3048    John tweaked yesterday's fix for 1131 to handle an out-of-memory
3049    situation that comes up when allocating huge arrays.
3050    
3051    ----------------------------------------------------------------------
3052    Name: Matthias Blume
3053    Date: 2002/05/21 16:00:00 EDT
3054    Tag: Release_110_40
3055    Description:
3056    
3057    New working release (110.40).  New bootfiles.
3058    
3059    [Also: John Reppy fixed GC bug 1131.]
3060    
3061    ----------------------------------------------------------------------
3062    Name: Matthias Blume
3063    Date: 2002/05/21 12:35:00 EDT
3064    Tag: blume-20020521-cmdoc
3065    Description:
3066    
3067    CM documentation update.
3068    
3069    ----------------------------------------------------------------------
3070    Name: Matthias Blume
3071    Date: 2002/05/21 10:55:00 EDT
3072    Tag: blume-20020521-misc
3073    Description:
3074    
3075    - John tweaked runtime to be silent on heap export (except when
3076      GC messages are on).
3077    - I added a few more things (cross-compiling versions of CMB) to
3078      config/preloads (as suggestions).
3079    
3080    ----------------------------------------------------------------------
3081    Name: Matthias Blume
3082    Date: 2002/05/20 22:25:00 EDT
3083    Tag: blume-20020520-controls
3084    Description:
3085    
3086    - Added ControlUtil structure to control-lib.cm.
3087    - Use it throughout.
3088    - Used Controls facility to define MLRISC controls (as opposed to
3089      registering MLRISC control ref cells with Controls after the fact)
3090    - Fixed messed-up controls priorities.
3091    
3092    * Removed again all the stuff from config/preloads that one wouldn't
3093      be able to preload at the time the initial heap image is built.
3094      (Many libraries, e.g., CML, do not exist yet at this time.  The
3095       only libraries that can be preloaded via config/preloads are those
3096       that come bundled with the bootfiles.)
3097    
3098    ----------------------------------------------------------------------
3099    Name: Matthias Blume
3100    Date: 2002/05/20 10:59:00 EDT
3101    Tag: blume-20020520-preloads
3102    Description:
3103    
3104    Added a lot of commented-out suggestions for things to be included
3105    in config/preloads.
3106    
3107    ----------------------------------------------------------------------
3108    Name: Allen Leung
3109    Date: 2002/05/18 14:20:00 EDT
3110    Tag: leunga-20020518-mdl
3111    Description:
3112    
3113    o Made the mdl tool stuff compile and run again.
3114    o I've disabled all the stuff that depends on RTL specifications; they
3115      are all badly broken anyway.
3116    
3117    ----------------------------------------------------------------------
3118    Name: Matthias Blume
3119    Date: 2002/05/17 16:49:00 EDT
3120    Tag: blume-20020517-controls
3121    Description:
3122    
3123    0. John Reppy made several modifications to the SML/NJ library.
3124       In particular, there is a shiny new controls-lib.cm.
3125    
3126    1. Pushed new controls interface through compiler so that everything
3127       compiles again.
3128    
3129    2. Added FormatComb and FORMAT_COMB to the CML version of the
3130       SML/NJ library (so that CML compiles again).
3131    
3132    3. Modified init scripts because XXX_DEFAULT environment variables
3133       are no longer with us.  (Boot-time initialization is now done
3134       using the same environment variables that are also used for
3135       startup-time initialization of controls.)
3136    
3137    ----------------------------------------------------------------------
3138    Name: Lal George
3139    Date: 2002/05/15 09:20:10 EDT
3140    Tag: george-20020515-pseudo-op-decls
3141    Description:
3142    
3143            All pseudo-ops emitted before the first segment declaration
3144    such as TEXT, DATA, and BSS directives are assumed to be global
3145    declarations and are emitted first in the assembly file. This is
3146    useful in a number of situations where one has pseudo-ops that are not
3147    specific to any segment, and also works around the constraint that one
3148    cannot have client pseudo-ops in the TEXT segment.
3149    
3150            Because no segment is associated with these declarations it is
3151    an error to allocate any space or objects before the first segment
3152    directive and an exception will be raised. However, we cannot make
3153    this check for client pseudo-ops.
3154    
3155            These top level declarations are a field in the CFG graph_info.
3156    In theory you can continue to add to this field after the CFG has been
3157    built -- provided you know what you are doing;-)
3158    
3159    ----------------------------------------------------------------------
3160    Name: Matthias Blume
3161    Date: 2002/05/13 16:40:00 EDT
3162    Tag: blume-20020513-pp-etc
3163    Description:
3164    
3165    A few minor bugfixes:
3166    
3167      - Stopgap measure for bug recently reported by Elsa Gunter (ppDec).
3168        (Bogus printouts for redefined bindings still occur.  Compiler
3169        bug should no longer occur now.  We need to redo the prettyprinter
3170        from scratch.)
3171    
3172      - CM pathname printer now also adds escape sequences for ( and )
3173    
3174      - commend and docu fixes for ml-nlffi
3175    
3176    ----------------------------------------------------------------------
3177    Name: Matthias Blume
3178    Date: 2002/05/10 16:40:00 EDT
3179    Tag: blume-20020510-erg-textio
3180    Description:
3181    
3182    Applied the following bugfix provided by Emden Gansner:
3183    
3184        Output is corrupted when outputSubstr is used rather than output.
3185    
3186        The problem occurs when a substring
3187    
3188            ss = (s, dataStart, dataLen)
3189    
3190        where dataStart > 0, fills a stream buffer with avail bytes left.
3191        avail bytes of s, starting at index dataStart, are copied into the
3192        buffer, the buffer is flushed, and then the remaining dataLen-avail
3193        bytes of ss are copied into the beginning of the buffer. Instead of
3194        starting this copy at index dataStart+avail in s, the current code
3195        starts the copy at index avail.
3196    
3197        Fix:
3198        In text-io-fn.sml, change line 695 from
3199             val needsFlush = copyVec(v, avail, dataLen-avail, buf, 0)
3200        to
3201             val needsFlush = copyVec(v, dataStart+avail, dataLen-avail, buf, 0)
3202    
3203    ----------------------------------------------------------------------
3204    Name: Matthias Blume
3205    Date: 2002/04/12 13:55:00 EDT
3206    Tag: blume-20020412-assyntax
3207    Description:
3208    
3209    1. Grabbed newer assyntax.h from the XFree86 project.
3210    2. Fiddled with how to compile X86.prim.asm without warnings.
3211    3. (Very) Minor cleanup in CM.
3212    
3213    ----------------------------------------------------------------------
3214    Name: Matthias Blume
3215    Date: 2002/04/01 (no joke!) 17:07:00 EST
3216    Tag: blume-20020401-x86div
3217    Description:
3218    
3219    Added full support for div/mod/rem/quot on the x86, using the machine
3220    instruction's two results (without clumsily recomputing the remainder)
3221    directly where appropriate.
3222    
3223    Some more extensive power-of-two support was added to the x86 instruction
3224    selector (avoiding expensive divs, mods, and muls where they can be
3225    replaced with cheaper shifts and masks).  However, this sort of thing
3226    ought to be done earlier, e.g., within the CPS optimizer so that
3227    all architectures benefit from it.
3228    
3229    The compiler compiles to a fixed point, but changes might be somewhat
3230    fragile nevertheless.  Please, report any strange things that you might
3231    see wrt. div/mod/quot/rem...
3232    
3233    ----------------------------------------------------------------------
3234    Name: Matthias Blume
3235    Date: 2002/03/29 17:22:00
3236    Tag: blume-20020329-div
3237    Description:
3238    
3239    Fixed my broken div/mod logic.  Unfortunately, this means that the
3240    inline code for div/mod now has one more comparison than before.
3241    Fast paths (quotient > 0 or remainder = 0) are not affected, though.
3242    The problem was with quotient = 0, because that alone does not tell
3243    us which way the rounding went.  One then has to look at whether
3244    remainder and divisor have the same sign...  :(
3245    
3246    Anyway, I replaced the bootfiles with fresh ones...
3247    
3248    ----------------------------------------------------------------------
3249    Name: Matthias Blume
3250    Date: 2002/03/29 14:10:00 EST
3251    Tag: blume-20020329-inlprims
3252    Description:
3253    
3254    NEW BOOTFILES!!!    Version number bumped to 110.39.3.
3255    
3256    Primops have changed. This means that the bin/boot-file formats have
3257    changed as well.
3258    
3259    To make sure that there is no confusion, I made a new version.
3260    
3261    
3262    CHANGES:
3263    
3264    * removed REMT from mltree (remainder should never overflow).
3265    
3266    * added primops to deal with divisions of all flavors to the frontend
3267    
3268    * handled these primops all the way through so they map to their respective
3269      MLRISC support
3270    
3271    * used these primops in the implementation of Int, Int32, Word, Word32
3272    
3273    * removed INLDIV, INLMOD, and INLREM as they are no longer necessary
3274    
3275    * parameterized INLMIN, INLMAX, and INLABS by a numkind
3276    
3277    * translate.sml now deals with all flavors of INL{MIN,MAX,ABS}, including
3278      floating point
3279    
3280    * used INL{MIN,MAX,ABS} in the implementation of Int, Int32, Word, Word32,
3281      and Real (but Real.abs maps to a separate floating-point-only primop)
3282    
3283    
3284    TODO items:
3285    
3286    * Hacked Alpha32 instruction selection, disabling the selection of REMx
3287      instructions because the machine instruction encoder cannot handle
3288      them.  (Hppa, PPC, and Sparc instruction selection did not handle
3289      REM in the first place, and REM is supported by the x86 machine coder.)
3290    
3291    * Handle DIV and MOD with DIV_TO_NEGINF directly in the x86 instruction
3292      selection phase.  (The two can be streamlined because the hardware
3293      delivers both quotient and remainder at the same time anyway.)
3294    
3295    * Think about what to do with "valOf(Int32.minInt) div ~1" and friends.
3296      (Currently the behavior is inconsistent both across architectures and
3297      wrt. the draft Basis spec.)
3298    
3299    * Word8 should eventually be handled natively, too.
3300    
3301    * There seems to be one serious bug in mltree-gen.sml.  It appears, though,
3302      as if there currently is no execution path that could trigger it in
3303      SML/NJ.  (The assumptions underlying functions arith and promotable do not
3304      hold for things like multiplication and division.)
3305    
3306    ----------------------------------------------------------------------
3307    Name: Matthias Blume
3308    Date: 2002/03/27 16:27:00 EST
3309    Tag: blume-20020327-mlrisc-divisions
3310    Description:
3311    
3312    Added support for all four division operations (ML's div, mod, quot,
3313    and rem) to MLRISC.  In the course of doing so, I also rationalized
3314    the naming (no more annoying switch-around of DIV and QUOT), by
3315    parameterizing the operation by div_rounding_mode (which can be either
3316    DIV_TO_ZERO or DIV_TO_NEGINF).
3317    
3318    The generic MLTreeGen functor takes care of compiling all four
3319    operations down to only round-to-zero div.
3320    
3321    Missing pieces:
3322    
3323      * Doing something smarter than relying on MLTreeGen on architectures
3324        like, e.g., the x86 where hardware division delivers both quotient and
3325        remainder at the same time.  With this, the implementation of the
3326        round-to-neginf operations could be further streamlined.
3327    
3328      * Remove inlining support for div/mod/rem from the frontend and replace it
3329        with primops that get carried through to the backend.  Do this for all