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Diff of /sml/trunk/HISTORY

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revision 1291, Sat Dec 7 03:41:00 2002 UTC revision 1507, Thu Jun 17 23:16:43 2004 UTC
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13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Matthias Blume (blume (at) tti - c (dot) org)
17    Date: 2004/06/17 18:15:00 CDT
18    Tag: Release_110_46
19    Description:
20    
21    New working version (110.46).  NEW BOOTFILES!
22    
23    ----------------------------------------------------------------------
24    Name: Matthias Blume (blume (at) tti - c (dot) org)
25    Date: 2004/06/17 17:20:00 CDT
26    Tag: blume-20040617-timer-unix
27    Description:
28    
29    Changed the interface of structures Timer and Unix to match the most
30    recent Basis spec.
31    
32    In the case of Unix there still seems to be an open/weird issue:
33    
34       The {text,bin}{In,Out}streamOf functions are supposed to create
35       fresh streams whenever they are called -- as opposed to have them
36       return the same stream every time.  This design is supposed to
37       prevent space leaks caused by proc values hanging on to streams.
38    
39       The reap function, on the other hand, is supposed to close the
40       streams.  This cannot be done without having a handle on the
41       stream in proc after all...
42    
43    I took the liberty to implement the following stopgap solution:
44    
45      The proc value hangs on to the most recently created stream(s).
46      Reap closes those.  If either or both of the two streams hadn't
47      been created at all yet, then reap will close the corresponding
48      file descriptors directly.
49    
50    PS: I don't understand the original space leak argument anymore.  If
51    a proc hangs on to the imperative stream, then I/O operations on those
52    will advance the state of the cached stream and avoid the space leak.
53    
54    ----------------------------------------------------------------------
55    Name: Matthias Blume (blume (at) tti - c (dot) org)
56    Date: 2004/05/28 16:45:00 CDT
57    Tag: blume-20040528-basis
58    Description:
59    
60    Added signature PACK_REAL and exported functor PrimIO.
61    
62    ----------------------------------------------------------------------
63    Name: Matthias Blume (blume (at) tti - c (dot) org)
64    Date: 2004/05/25 16:00:00 CDT
65    Tag: blume-20040525-group-owner
66    Description:
67    
68    CM now ignores (but still accepts) the "owner" information in group
69    descriptions.  The owner of a group is its next enclosing
70    library. Each group must have a unique owner.  (There is a virtual
71    "toplevel" library that owns groups which are not nested within a real
72    library.)  Previously, each group had to explicitly declare its owner,
73    and CM would check that such a declaration is correct.  The new scheme
74    is to have CM check that for each group there is precisely one owning
75    library.
76    
77    The advantage of the new scheme is that the programmer no longer needs
78    to maintain the somewhat annoying owner information.  The downside is
79    that CM cannot enforce the ownership rule across multiple runs of
80    CM.make.  Fortunately, enclosing the same group in two different
81    libraries A and B which are not part of the same program does not
82    cause real problems.
83    
84    ----------------------------------------------------------------------
85    Name: Matthias Blume (blume (at) tti - c (dot) org)
86    Date: 2004/05/20 16:00:00 CDT
87    Tag: blume-20040520-win32
88    Description:
89    
90    Made the win32 version work again.  (Strangely, a misplaced comma had
91    slipped into win32-process.c which prevented the runtime from being
92    compiled correctly.)
93    
94    Also, included a minor addition to ml-build.bat analogous to what was
95    done in blume-20040519-ml-build.
96    
97    ----------------------------------------------------------------------
98    Name: Matthias Blume (blume (at) tti - c (dot) org)
99    Date: 2004/05/19 22:10:00 CDT
100    Tag: blume-20040519-ml-build
101    Description:
102    
103    Arranged for ml-build to clean up after itself a little bit better.
104    The script generates a temporary SML source file and compiles it using
105    CM, so CM generates metadata (GUID, SKEL, objectfile) for it.  It now
106    gets rid of those at the end, so they don't accumulate under .cm.
107    
108    This required a minor change to install.sh because the name of the
109    metadata directory (default: .cm) is actually configurable at
110    installation time.
111    
112    ----------------------------------------------------------------------
113    Name: Matthias Blume (blume (at) tti - c (dot) org)
114    Date: 2004/05/18 15:50:00 CDT
115    Tag: blume-20040518-mkreader
116    Description:
117    
118    Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
119    implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
120    
121    ----------------------------------------------------------------------
122    Name: Matthias Blume (blume (at) tti - c (dot) org)
123    Date: 2004/05/11 14:35:00 CDT
124    Tag: blume-20040511-win32sock
125    Description:
126    
127    Added previously missing support for many socket-related functions
128    under win32.  Thanks to David Hansel <hansel@reactive-systems.com>
129    for the voluminous patch!
130    
131    (I have not tested this patch under win32 yet.)
132    
133    Here is David's e-mail:
134    
135    Hi,
136    
137    Attached to this email you find a diff against sml/nj 110.45
138    that will enable socket support under Windows.
139    
140    To apply the patch (using unix or cygwin)
141    1) gunzip runtime.diff.gz
142    2) "cd" into "src/runtime" in the source tree of a fresh
143       110.45 installation.
144    3) patch -p 1 < [your/path/to]runtime.diff
145    
146    The code compiles fine but has NOT yet been extensively tested.
147    I only ran a few tests for basic socket client functionality
148    (which worked fine).  Especially the functions that use ioctl
149    are not tested at all and might not work (see below).
150    
151    I implemented this since we want to move to a newer version of sml/nj
152    but need socket support in order to use it.  This is the first time I
153    even had a look at the sml/nj source,  so please review my changes
154    before making this part of the distribution!  Here are a few issues
155    that I think might be better for someone to solve who is more
156    familiar with the sml/nj source (and socket programming):
157    
158    - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
159      exception since I could not figure out what the windows equivalent
160      of these functions is
161    
162    - In sockets-osdep.h there are a some #include statements that are
163      only used in a few files that include sockets-osdep.h
164    
165    - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
166      does not process its return value since I don't know how to
167      report an error upwards.
168    
169    - It would probably be good to have a call to WSACleanup() when
170      the library is unloaded (if there is such a possibility).
171      Otherwise I think Windows will take care of this automatically
172      when the process finishes.
173    
174    - I used ioctlsocket() as a replacement for ioctl() but I have
175      no idea if that is actually the proper replacement on Windows.
176    
177    - All these issues are marked in the code by "FIXME" comments.
178    
179    We use sml/nj extensively in our products and are quite happy
180    with it.  I hope this contribution will help you.
181    
182    Keep up the good work!
183    
184    David
185    
186    ----------------------------------------------------------------------
187    Name: Matthias Blume (blume (at) tti - c (dot) org)
188    Date: 2004/05/11 14:20:00 CDT
189    Tag: blume-20040511-installml
190    Description:
191    
192    Fixed two bugs in installml script.  (Thanks to Vesa A. Norrman for
193    the patch.)
194    
195    ----------------------------------------------------------------------
196    Name: Matthias Blume (blume (at) tti - c (dot) org)
197    Date: 2004/05/11 14:05:00 CDT
198    Tag: blume-20040511-nlffi-netbsd
199    Description:
200    
201    Added support for nlffi under netbsd.  (Thanks to Vesa A. Norrman for
202    the patch.)
203    
204    ----------------------------------------------------------------------
205    Name: Matthias Blume (blume (at) tti - c (dot) org)
206    Date: 2004/05/11 12:05:00 CDT
207    Tag: blume-20040511-exports
208    Description:
209    
210    As per request by Adam Chlipala <adam@hcoop.net>, extended various
211    export lists in compiler-related .cm-files.
212    
213    ----------------------------------------------------------------------
214    Name: Matthias Blume (blume (at) tti - c (dot) org)
215    Date: 2004/05/11 11:35:00 CDT
216    Tag: blume-20040511-allsource
217    Description:
218    
219    The installer now honors the "src-smlnj" target again, although its meaning
220    has changed from "all sources required for the compiler" to "all sources
221    the installer knows about".  In other words, if you enable "src-smlnj"
222    in the "targets" file, then the installer will pull in sources for
223    everything.  (Notice that this refers to source code only.  Compiled
224    code is still only installed for modules that were requested explicitly
225    or which are required for other modules that were requested explicitly.)
226    
227    ----------------------------------------------------------------------
228    Name: Matthias Blume (blume (at) tti - c (dot) org)
229    Date: 2004/04/23 17:40:00 CDT
230    Tag: blume-20040423-ieee-scan
231    Description:
232    
233    Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
234    in the exponent calculation we get INF or ZERO (depending on the mantissa
235    and the sign of the exponent).
236    
237    ----------------------------------------------------------------------
238    Name: Matthias Blume (blume (at) tti - c (dot) org)
239    Date: 2004/04/23 10:40:00 CDT
240    Tag: blume-20040423-ml-build
241    Description:
242    
243    The ml-build script now terminates with a non-0 status when something
244    goes wrong.
245    
246    ----------------------------------------------------------------------
247    Name: Matthias Blume (blume (at) tti - c (dot) org)
248    Date: 2004/04/22 16:35:00 CDT
249    Tag: blume-20040422-Option
250    Description:
251    
252    Made exception Option to be the same as exception Option.Option
253    (as it should be).
254    
255    ----------------------------------------------------------------------
256    Name: Allen Leung (leunga (at) reservoir (dot) com)
257    Date: 2004/03/19 14:40:00 EST
258    Tag: leunga-20040319-cygwin-nlffi
259    Description:
260    
261    Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
262    of SML/NJ.  The problem is that
263    
264       lib = dlopen(NULL, ...)
265       f   = dlsym(lib, "malloc");
266    
267    does not work on Windows unless we explicitly export symbols
268    such as 'malloc' during linking.  We fixed this by explicitly
269    exporting the required symbols with the magic gcc incantation:
270    
271        -Wl,--export-all cygwin.def
272    
273    where cygwin.def is a file containing all the symbols that
274    we wish to export.
275    
276    I suspect this is a Windows problem and we'll have to
277    do the same (somehow with windows compilers) when
278    we build the native win32 version with the system
279    calls LoadLibrary/GetProcAddress.
280    
281    ----------------------------------------------------------------------
282    Name: Matthias Blume (blume (at) tti - c (dot) org)
283    Date: 2004/03/04 16:35:00 CST
284    Tag: blume-20040304-intinf-fmt
285    Description:
286    
287    Fixed problem with IntInf.fmt (sign would show up on the right instead
288    of on the left for BIN, OCT, and HEX).
289    
290    ----------------------------------------------------------------------
291    Name: Matthias Blume (blume (at) tti - c (dot) org)
292    Date: 2004/03/04 11:25:00 CST
293    Tag: blume-20040304-symlinks
294    Description:
295    
296    Fixed problem with installer script (unix only) where bin/ml-yacc and
297    friends pointed (via symlinks) to absolute locations instead of just
298    .run-sml.  This was reported by Vesa A Norrman.
299    
300    ----------------------------------------------------------------------
301    Name: Matthias Blume (blume (at) tti - c (dot) org)
302    Date: 2004/02/13 14:50:00 CST
303    Tag: Release_110_45
304    Description:
305    
306    New working version (110.45). New bootfiles.
307    
308    ----------------------------------------------------------------------
309    Name: Matthias Blume (blume (at) tti - c (dot) org)
310    Date: 2004/01/26 15:15:15 CST
311    Tag: blume-20040126-toplevel
312    Description:
313    
314    Improved handling of exceptions at the interactive toplevel.
315    
316    ----------------------------------------------------------------------
317    Name: Matthias Blume (blume (at) tti - c (dot) org)
318    Date: 2004/01/26 11:25:00
319    Tag: blume-20040126-app
320    Description:
321    
322    Type of top-level "app" corrected.
323    Added code for setting vp_limitPtrMask to Win32-specific runtime.
324    
325    ----------------------------------------------------------------------
326    Name: Matthias Blume (blume (at) tti - c (dot) org)
327    Date: 2003/11/18 17:10 CST
328    Tag: blume-20031118-basis-fiddle
329    Description:
330    
331    - changed Timer interface to what might become the spec
332    - POSIX_FLAGS -> BIT_FLAGS according to spec
333    - some other minor discrepancies wrt. spec eliminated
334    
335    ----------------------------------------------------------------------
336    Name: Matthias Blume (blume (at) tti - c (dot) org)
337    Date: 2003/11/06 12:00:00 CST
338    Tag: Release_110_44
339    Description:
340    
341    New working version (110.44). New bootfiles.
342    
343    ----------------------------------------------------------------------
344    Name: Matthias Blume (blume (at) tti - c (dot) org)
345    Date: 2003/11/04 11:50:00 CST
346    Tag: blume-20031104-move-libraries
347    Description:
348    
349    Eliminated the "dont_move_libraries" directive in config/targets.
350    (The mechanism was broken and could not be fixed easily.  Moreover,
351    there does not seem to be any reason not to move all libraries into
352    lib during installation.  I originally implemented this directive as a
353    backward-compatibility feature when I first introduced the new CM.
354    Now that things have been stable for a long time and going back to the
355    old CM is not an option, there is no reason to keep it around.)
356    
357    ----------------------------------------------------------------------
358    Name: Matthias Blume (blume (at) tti - c (dot) org)
359    Date: 2003/11/03 16:00:00 CST
360    Tag: blume-20031103-installdir
361    Description:
362    
363    Made installer honor INSTALLDIR variable again.  (Thanks to Chris
364    Richards for pointing out the problem and providing the solution.)
365    
366    ----------------------------------------------------------------------
367    Name: Matthias Blume (blume (at) tti - c (dot) org)
368    Date: 2003/10/01 17:05:00 CDT
369    Tag: blume-20031001-lal-mlrisc
370    Description:
371    
372    MLRISC bug fix from Lal.
373    
374    ----------------------------------------------------------------------
375    Name: Matthias Blume (blume (at) tti - c (dot) org)
376    Date: 2003/09/30 16:10:00 CDT
377    Tag: blume-20030930-primio-bat
378    Description:
379    
380    1. Added openVector, nullRd, and nullWr to PRIM_IO.
381    2. Improved .bat files (for Win32 port) to make things work under Win95.
382       (thanks to Aaron S. Hawley for this one)
383    
384    ----------------------------------------------------------------------
385    Name: Matthias Blume (blume (at) tti - c (dot) org)
386    Date: 2003/09/26 16:05:00 CDT
387    Tag: blume-20030926-wrappriv
388    Description:
389    
390    Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
391    
392    ----------------------------------------------------------------------
393    Name: Matthias Blume (blume (at) tti - c (dot) org)
394    Date: 2003/09/26 15:00:00 CDT
395    Tag: blume-20030926-110_43_3
396    Description:
397    
398    - additional cleanup
399    - version number bump, NEW BOOTFILES
400    
401    ----------------------------------------------------------------------
402    Name: Matthias Blume (blume (at) tti - c (dot) org)
403    Date: 2003/09/26 12:00:00 CDT
404    Tag: blume-20030926-ppautoload
405    Description:
406    
407    I modified the read-eval-print loop so that the autoloader gets
408    invoked whenever the prettyprinter tries to look up a symbol that
409    is not currently defined in the toplevel environment but which
410    appears in CM's autoload registry.  As a result, we see far fewer of
411    those ?.Foo.Bar.xxx names in the prettyprinter's output.
412    
413    In addition to this I tried to clean up some pieces of the Basis
414    implementation (e.g., Socket, Word8Array) in order to prevent other
415    instances of these ?.Foo.Bar.xxx names from being printed.
416    
417    The mechanism that picks names for types still needs some work, though.
418    (Right now it seems that if there is a type A.t which is defined to
419    be B.u, but B is unavailable at toplevel, then A.t gets printed as
420    "?.B.u" although the perhaps more sensible solution would be to use
421    "A.t" in this case.  In other words, the prettyprinter should follow
422    a chain of DEFtycs not farther than there are corresponding toplevel
423    names in the current environment.)
424    
425    ----------------------------------------------------------------------
426    Name: Matthias Blume (blume (at) tti - c (dot) org)
427    Date: 2003/09/24 16:31:00 CDT
428    Tag: blume-20030924-installer
429    Description:
430    
431    Another installer tweak:  All the ML code for the installer is now
432    compiled during CMB.make and put into a little library called
433    $smlnj/installer.cm.  The installation then simply invokes
434    
435       sml -m $smlnj/installer.cm
436    
437    and everything happens automagically.
438    
439    Win32:  ML code senses value of environment variable SMLNJ_HOME.
440    Unix:   ML code senses values of environment variables ROOT, CONFIGDIR,
441            and BINDIR.
442    
443    The new scheme guarantees that the ML code responsible for the installation
444    is in sync with the APIs of the main system.  Also, the installer is
445    somewhat faster because the installer script is precompiled.
446    
447    ----------------------------------------------------------------------
448    Name: Matthias Blume (blume (at) tti - c (dot) org)
449    Date: 2003/09/24 15:35:00 CDT
450    Tag: blume-20030924-synsock
451    Description:
452    
453    Added a signature SYNCHRONOUS_SOCKET to basis.cm.  This is like SOCKET
454    but excludes all non-blocking operations.  Defined SOCKET (in Basis)
455    and CML_SOCKET in terms of SYNCHRONOUS_SOCKET.  Removed superfluous
456    implementations of non-blocking operations from CML's Socket
457    structure.
458    
459    ----------------------------------------------------------------------
460    Name: Matthias Blume (blume (at) tti - c (dot) org)
461    Date: 2003/09/24 15:10:05 CDT
462    Tag: blume-20030924-sockets
463    Description:
464    
465    1. Fixed SOCKET API and implementation to match Basis spec.
466       This required changing the internal representation of sockets to one
467       that remembers (for each socket file descriptor) whether it is currently
468       blocking or non-blocking.  This state is maintained lazily (i.e., a system
469       call is made only if the state actually needs to change).
470    
471    2. OS-specific details of sockets were moved into separate files, thus
472       making it possible to unify the bulk of the socket implementations
473       between Unix and Win32.
474    
475    3. CML's socket API changed accordingly.
476       (Note that we need to remove non-blocking functions from this API
477       since they are redundant in the case of CML!)
478    
479    4. CML's socket implementation now makes use of non-blocking functions
480       provided by Basis, thus removing all OS-dependent code from this part
481       of CML.
482    
483    5. Changed Real64.precision from 52 to 53.  Minor cleanup in Real64 code.
484    
485    ----------------------------------------------------------------------
486    Name: Matthias Blume (blume (at) tti - c (dot) org)
487    Date: 2003/09/22 12:10:00 CDT
488    Tag: blume-20030922-110_43_2
489    Description:
490    
491    Made a new interim version and bootfiles for developer's bootstrapping
492    convenience.
493    
494       110.43.2 -- NEW BOOTFILES
495    
496    ----------------------------------------------------------------------
497    Name: Matthias Blume (blume (at) tti - c (dot) org)
498    Date: 2003/09/19 15:55:00 CDT
499    Tag: blume-20030919-cmdir
500    Description:
501    
502    1. new-install.sh -> install.sh
503    2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
504    3. tweaked installer so that another name instead of .cm can be chosen
505       at install time (by setting the CM_DIR_ARC environment variable
506       during installation); once installation is complete, the name is
507       fixed
508    
509    ----------------------------------------------------------------------
510    Name: Matthias Blume (blume (at) tti - c (dot) org)
511    Date: 2003/09/18 16:00:00 CDT
512    Tag: blume-20030918-110_43_1
513    Description:
514    
515    Made a new interim version and bootfiles for developer's bootstrapping
516    convenience.
517    
518       110.43.1 -- NEW BOOTFILES
519    
520    ----------------------------------------------------------------------
521    Name: Matthias Blume (blume (at) tti - c (dot) org)
522    Date: 2003/09/18 15:20:00 CDT
523    Tag: blume-20030918-misc
524    Description:
525    
526    1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
527       this seems to be controversial at the moment) and used those in
528       Posix.ProcEnv.times.
529    
530    2. Added Time.{from,to}Nanoseconds to Time.
531    
532    3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
533       For example, fromLargeInt never needs to look at more than 3 "big
534       digits" to get its 53 bits of precision.
535    
536    ----------------------------------------------------------------------
537    Name: Matthias Blume (blume (at) tti - c (dot) org)
538    Date: 2003/09/17 16:30:00 CDT
539    Tag: blume-20030917-real32-slices
540    Description:
541    
542    Added an entry to the primitive environment
543    (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
544    added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
545    
546    Removed some of the "magic" constants in real64.sml and replaced them
547    with code that generates these values from their corresponding
548    integer counterparts.
549    
550    Made all(?) the slice-related changes to the Basis and made everything
551    compile again...
552    
553    ----------------------------------------------------------------------
554    Name: Matthias Blume (blume (at) tti - c (dot) org)
555    Date: 2003/09/15 17:45:00 CDT
556    Tag: blume-20030915-rbase
557    Description:
558    
559    Fixed bug in Real.fromLargeInt.
560    
561    ----------------------------------------------------------------------
562    Name: Matthias Blume (blume (at) tti - c (dot) org)
563    Date: 2003/09/13 18:11:00 CDT
564    Tag: blume-20030913-libinstall
565    Description:
566    
567    Minor bugfix in config/libinstall (set anchor with path to
568    standalone tool after installing it, otherwise libraries that
569    need ml-lex or ml-yacc won't compile the first time the installer
570    runs).
571    
572    ----------------------------------------------------------------------
573    Name: Matthias Blume (blume (at) tti - c (dot) org)
574    Date: 2003/09/12 11:45:00 CDT
575    Tag: blume-20030912-various
576    Description:
577    
578     - fixed bug in Real.toLargeInt
579     - fixed bug in Posix.ProcEnv.times
580     - changed inputLine functions to return an option
581     - minor installer improvements / bugfixes
582     - changed default @SMLalloc parameter for x86/celeron to 64k
583    
584    ----------------------------------------------------------------------
585    Name: Matthias Blume (blume (at) tti - c (dot) org)
586    Date: 2003/09/09 22:00:00 CDT
587    Tag: Release_110_43
588    Description:
589    
590        New working release 110.43.  New bootfiles.
591    
592    ----------------------------------------------------------------------
593    Name: Matthias Blume (blume (at) tti - c (dot) org)
594    Date: 2003/09/09 19:20:00 CDT
595    Tag: blume-20030909-installer
596    Description:
597    
598    Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
599    Modified config/install.bat to take advantage of it.  Also modified
600    config/install.sh (and called it config/new-install.sh) to take advantage
601    of it on Unix systems.  (The SML code is (supposed to be) platform-
602    independent.)
603    
604    The installer can now install everything under Win32
605    as well as under *nix as long as it compiles.
606    
607    Other changes:
608    
609      - made CML compile again under Win32
610      - made eXene compile under Win32 (by providing a fake structure UnixSock
611        and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
612      - fixed a bug in nowhere: it assumed that type OS.Process.status is the
613        same as type int;  under Win32 it isn't
614      - fixed some slice-related problems in the win32-specific parts of CML
615      - added a functor argument "sameVol" to os-path-fn.sml in the Basis
616        (under Win32, the volume name is case-insensitive, and the
617        OS.Path code compares volume names for equality)
618    
619    ----------------------------------------------------------------------
620    Name: Matthias Blume (blume (at) tti - c (dot) org)
621    Date: 2003/09/08 11:55:00 CDT
622    Tag: blume-20030908-fullpath
623    Description:
624    
625    Made Win32 version of OS.FileSys.fullPath return current directory
626    when given an empty string.  This is what the spec says, and incidentally,
627    CM depends on it.  (CM otherwise goes into an infinite loop in certain
628    cases when presented with the name of a non-existing .cm file.)
629    
630    ----------------------------------------------------------------------
631    Name: Matthias Blume (blume (at) tti - c (dot) org)
632    Date: 2003/09/04 16:30:00 CDT
633    Tag: blume-20030905-slices-etc
634    Description:
635    
636      1. Changed interface to vectors and arrays in Basis to match
637         (draft) Basis spec.
638      2. Added signatures and implementations of slices according to
639         Basis spec.
640      3. Edited source code throughout the system to make it compile again
641         under 1. and 2.  (In some cases code had to be added to have it
642         match the new signatures.)
643      4. MLRISC should be backward-compatible: the copies of the originals
644         of files that needed to change under 3. were retained, the .cm files
645         check the compiler version number and use old versions when
646         appropriate.
647      5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
648         dirstream -> string option (in accordance with Basis spec).
649      6. When generating code that counts lines, ml-lex used function
650         CharVector.foldli, taking advantage of its old interface.
651         This has been replaced with the corresponding code from
652         CharVectorSlice.  (html-lex must be re-lexed!)
653      7. BitArray in smlnj-lib/Util has been extended/modified to match the
654         new MONO_ARRAY signature.  (Do we need BitArraySlice?)
655      8. Removed temporary additions (fromInternal, toInternal) from the
656         (now obsolete) IntInf in smlnj-lib/Util.
657      9. Cleaned up structure Byte.
658     10. Added localOffset, scan, and fromString to Date (according to spec).
659         Cleaned/corrected implementation of Date.
660         (Still need to check for correctness; implement better canonicalizeDate.)
661     11. Added "scan" to signature IEEE_REAL.
662     12. Some improvements to IntInf [in particular: efficiency-hack for
663         mod and rem when second operand is 2 (for parity checks).]
664     13. Changed representation of type Time.time, using a single IntInf.int
665         value counting microseconds.  This considerably simplified the
666         implementation of structure Time.  We now support negative time
667         values; scan and fromString handle signs.
668     14. Functor PrimIO now takes two additional arguments (VectorSlice and
669         ArraySlice).
670    
671    ----------------------------------------------------------------------
672    Name: Matthias Blume (blume (at) tti - c (dot) org)
673    Date: 2003/08/28 17:00:00 CDT
674    Tag: blume-20030828-intinf
675    Description:
676    
677    This is a major update which comes with a version number bump
678    (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
679    and an implementation of IntInf in the Basis.
680    
681    There are a fairly large number of related changes and updates throughout
682    the system:
683    
684    Basis:
685            - Implemented IntInf.
686            - Made LargeInt a projection of IntInf (by filtering through INTEGER).
687            - Added some missing Real64 operations, most notably Real.toLargeInt.
688            - Added FixedInt as a synonym for Int32.
689    
690    compiler:
691            * Added support for a built-in intinf type.
692              - literals
693              - pattern matching
694              - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
695              - overloading on literals and operations
696    
697            This required adding a primitive type intinf, some additional
698            primops, and implementations for several non-trivial intinf
699            operations in Core.  (The intinf type is completely abstract
700            to the compiler; all operations get delegated back to the Core.)
701    
702            * Intinf equality is handled by polyequal.  However, the compiler
703            does not print its usual warning in this case (since polyequal
704            is the right thing to do there).
705    
706            * Improved the organization of structure InlineT.
707    
708            * A word about conversion primops:
709            If conversions involving intinf do not cancel out during
710            CPS contract, then the compiler must insert calls to Core functions.
711            Since all core access must be resolved already during the FLINT
712            translate phase, it would be too late a the time of CPS contract
713            to add new Core calls.  For this reason, conversion primops
714            for intinf carry two arguments:  1. the numeric argument that
715            they are supposed to convert, and 2. the Core function that
716            can help with this conversion if necessary.  If CPS contract
717            eliminates a primop, then the associated Core function becomes
718            dead and goes away.  Intinf conversion primops that do not get
719            eliminated by CPS contract get rewritten into calls of their
720            core functions by a separate, new phase.
721    
722    interactive system:
723            - Control.Print.intinfDepth controls max length of intinf constants
724            being printed. (Analogous to Control.Print.stringDepth.)
725            - Cleanup in printutil and pputil: got rid of unused stuff and
726            duplicates; replaced some of the code with code that makes better
727            use of library functionality.
728    
729    CM:
730            Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
731            are no longer silent.
732    
733    CKIT:
734            Fixed mismatched uses of Int32 and LargeInt.  I always decided
735            in favor of LargeInt -- which is now the same as IntInf.
736            CKIT-knowledgable people should check whether this is what's
737            intended and otherwise change things back to using Int32 or
738            FixedInt.
739    
740    Throughout the code:
741            Started using IntInf.int literals and built-in operations
742            (e.g., comparison with 0) where this seems appropriate.
743    
744    
745    ----------------------------------------------------------------------
746    Name: Dave MacQueen (dbm@cs.uchicago.edu)
747    Date: 2003/08/13 11:36:00 CDT
748    Tag: dbm-20030813-mcz-merge1
749    Description:
750    
751    Merging changes from the mcz-branch development branch into trunk.
752    These changes involve replacement of the emulated old prettyprinter
753    interface with direct use of the SML/NJ Lib PP library, and fixing
754    of a couple of bugs (895, 1186) relating to error messages.  A new
755    prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
756    has been added.
757    
758    ----------------------------------------------------------------------
759    Name: Matthias Blume (blume (at) tti - c (dot) org)
760    Date: 2003/08/11 15:45:00 CDT
761    Tag: blume-20030811-windows
762    Description:
763    
764    Version number bumped to 110.42.9.  NEW BOOTFILES!!!
765    
766        http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
767    
768    This patch restores SML/NJ's ability to run under win32.  There are a
769    number of changes, including fixes for several bugs that had gone
770    unnoticed until now:
771    
772      - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
773        trying to run the win32 version from within cygwin.)
774    
775      - There are a number of simple .bat scripts that substitute for their
776        corresponding Unix shell-scripts.  (See below.)
777    
778      - The internals of ml-build have been modified slightly.  The main
779        difference is that instead of calling ".link-sml" (or link-sml.bat)
780        using OS.Process.system, the ML process delegates this task back
781        to the script.  Otherwise problems arise in mixed environments such
782        as Cygwin where scripts look and work like Unix scripts, but
783        where OS.Process.system cannot run them.
784    
785      - In CM, the srcpath pickler used native pathname syntax -- which
786        is incorrect in the case of cross-compilation.  The new pickle format
787        is independent of platform-specific naming conventions.
788    
789      - Path configuration files (such as lib/pathconfig) can now choose
790        between native and standard syntax.  Placing a line of the form
791    
792            standard!
793    
794        into the file causes all subsequent paths to be interpreted using
795        CM standard pathname syntax (= Unix conventions); a line
796    
797            native!
798    
799        switches back to native style.  This was needed so that
800        path config files can be written portably, see src/system/pathconfig.
801    
802      - Runtime system:
803    
804          - win32-filesys.c:  get_file_time and set_file_time now
805            access modification time, not creation time.
806    
807          - I/O code made aware of new array representation.
808    
809          - Bug fixes in X86.prim.masm.
810    
811       - src/system/makeml made aware of win32. (For use under cygwin
812            and other Unix-environments for windows.)
813    
814       - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
815         which caused BinIO.inputAll to fail consistently.
816    
817    .bat scripts:
818    
819       Windows .bat scripts assume that SMLNJ_HOME is defined.
820    
821       - sml.bat, ml-yacc.bat, ml-lex.bat:  Driver scripts for standalone
822         applications (sml, ml-yacc, ml-lex).
823       - ml-build.bat: analogous to ml-build.
824       - config\install.bat:  Analogous to config/install.sh.  This requires
825         that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
826         (nmake etc. must be on the path, and vcvars32 must have been run.)
827         Moreover, sources for ml-lex and ml-yacc need to exist under src,
828         and the bootfile hierarchy must have been unpacked under
829         sml.boot.x86-win32.
830         The script is very primitive and does a poor job at error checking.
831         It only installs the base system, ml-lex, and ml-yacc.  No other
832         libraries are being installed (i.e., you get only those that
833         are part of the compiler.)
834       - link-sml.bat:  analogous to .link-sml, but not currently used
835    
836    Unrelated bug fixes:
837    
838      - ml-nlffigen now exports structures ST_* corresponding to incomplete
839        types.
840      - Added getDevice to PP/src/pp-debug-fn.sml.  (Would not compile
841        otherwise.)
842    
843    ----------------------------------------------------------------------
844    Name: Dave MacQueen (macqueen@cs.uchicago.edu)
845    Date: 2003/06/17
846    Tag: macqueen-20030617-bug895
847    Description:
848    
849    Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
850    Tag will be used for new development branch (mcz-branch) for
851    use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
852    
853    ----------------------------------------------------------------------
854    Name: Matthias Blume (blume (at) tti - c (dot) org)
855    Date: 2003/05/27 16:55:00 CDT
856    Tag: blume-20030527-polyeq
857    Description:
858    
859    Tried to eliminated most cases of polymorphic equality.
860    
861    ----------------------------------------------------------------------
862    Name: Matthias Blume (blume (at) tti - c (dot) org)
863    Date: 2003/05/21 17:45:00 CDT
864    Tag: blume-20030517-complete
865    Description:
866    
867    Two changes:
868    
869      1. Added a flag for controlling whether non-exhaustive bindings will
870         be treated as errors (default is false).
871      2. Cleaned up the *entire* source tree so that CMB.make goes through
872         without a single non-exhaustive match- or bind warning.
873    
874    ----------------------------------------------------------------------
875    Name: Matthias Blume (blume (at) tti - c (dot) org)
876    Date: 2003/05/17 10:20:00 CDT
877    Tag: blume-20030517-absyn
878    Description:
879    
880    1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
881    
882       This mainly affects the quality of error messages.  However, some
883       of the code is now more straightforward than before. (Treatment of
884       the above four constructs in translate.sml is much simpler than
885       the "macro-expansion" that was going on before.  Plus, the mach-
886       compiler no longer gets invoked just to be able to compile an
887       if-expression.)
888    
889    2. The ErrorMsg.Error exception is now caught and absorbed by the
890       interactive loop.
891    
892    ----------------------------------------------------------------------
893    Name: Allen Leung
894    Date: 2003/05/16 13:05:00 CDT
895    Tag: leunga-20030516-cygwin-runtime
896    Description:
897    
898        Ported the runtime system to cygwin, which uses the unix
899    x86-unix bin files.  Missing/buggy features:
900    
901       o getnetbyname, getnetbyaddr: these functions seem to be missing in
902         the Cygwin library.
903       o Ctrl-C handling may be flaky.
904       o Windows system calls and Windows I/O are not supported.
905    
906       A new set of binfiles is located at:
907    
908         http://www.dorsai.org/~leunga/boot.x86-unix.tgz
909    
910       This is only needed for bootstrapping the cygwin version of smlnj.
911       Other x86 versions can use the existing binfiles.
912    
913    ----------------------------------------------------------------------
914    Name: Matthias Blume
915    Date: 2003/04/08 15:42:00 CDT
916    Tag: blume-20030408-listpair
917    Description:
918    
919    1. Added a target 'mlrisc' to installer.
920    
921    2. Added missing elements to structure ListPair.
922    
923    ----------------------------------------------------------------------
924    Name: Allen Leung
925    Date: 2003/01/07 10:40:00 EST
926    Tag: leunga-20030107-int-rem
927    Description:
928    
929    Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
930    The arguments to the SUBL instruction were swapped.
931    
932    ----------------------------------------------------------------------
933    Name: Matthias Blume
934    Date: 2002/12/12 16:25:00 EST
935    Tag: blume-20021212-risc-ra
936    Description:
937    
938    Fixed a serious bug in the rewrite code for FP spilling/reloading that
939    sent the RA into an infinite loop when floating point registers get
940    spilled.  (Because of this bug, e.g., nucleic stopped compiling between
941    110.37 and 110.38.)
942    There was another set of potential problems related to the handling of
943    MLRISC annotations (but those did not yet cause real problems, apparently).
944    
945    ----------------------------------------------------------------------
946  Name: Matthias Blume  Name: Matthias Blume
947  Date: 2002/12/06 22:40:00 EST  Date: 2002/12/06 22:40:00 EST
948  Tag: blume-20021206-cm-fileid  Tag: blume-20021206-cm-fileid

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