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[smlnj] Diff of /sml/branches/primop-branch-3/NOTES/HISTORY
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Diff of /sml/branches/primop-branch-3/NOTES/HISTORY

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

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