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[smlnj] Diff of /sml/trunk/NOTES/HISTORY
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Diff of /sml/trunk/NOTES/HISTORY

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revision 1181, Wed Mar 27 21:27:27 2002 UTC revision 1672, Thu Oct 28 15:44:02 2004 UTC
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13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Matthias Blume (blume (at) tti - c (dot) org)
17    Date: 2004/10/28 10:45:00 CDT
18    Tag: Release_110_50
19    Description:
20    
21    New working version (110.50).  NEW BOOTFILES!
22    
23                 =====================
24    
25    Also:
26    
27      - Changend config/srcarchiveurl from a file just
28        containing the URL string into a file containing
29        shell script code.  The code has access to the $VERSION variable.
30      - Made corresponding changes to config/install.sh and config/unpack.
31      - Default contents of config/srcarchiveurl uses $VERSION and
32        normally does not have to be edited to reflect a version change.
33    
34      (As a result, a version change can be done by just editing
35       config/version, the rest is now automatic.)
36    
37    ----------------------------------------------------------------------
38    Name: Matthias Blume (blume (at) tti - c (dot) org)
39    Date: 2004/10/27 17:50:00 CDT
40    Tag: blume-20041027-btrace-msg
41    Description:
42    
43    BackTrace.monitor now also reports the source of the exception that
44    triggered the trace.
45    
46    ----------------------------------------------------------------------
47    Name: Matthias Blume (blume (at) tti - c (dot) org)
48    Date: 2004/10/27 17:20:00 CDT
49    Tag: blume-20041027-x86-c-calls
50    Description:
51    
52    This is the HISTORY entry for two earlier commits, both concerning
53    the x86 c-calls code in MLRISC:
54    
55      - added a missing LOAD in the code that deals with struct arguments
56      - made sure the caller does not add the wrong number of bytes to the
57        stack pointer after a call of a function returning a struct
58        (the callee already pops the implicit argument which points to
59         the space reserved for the result)
60    
61    ----------------------------------------------------------------------
62    Name: Allen Leung (leunga (at) reservoir (dot) com)
63    Date: 2004/10/24 14:00:00 EST
64    Tag: leunga-20041024-x86-gas-fucomip
65    Description:
66    
67       John discovered a bug in the syntax of fucomip.
68       The opcodes FU?COMIP? have been changed to
69    
70           fu?comip? %st(i), %st
71    
72    ----------------------------------------------------------------------
73    Name: Matthias Blume (blume (at) tti - c (dot) org)
74    Date: 2004/10/20 15:06:00 CDT
75    Tag: blume-20041020-standalone-backtrace
76    Description:
77    
78    Added a mechanism for getting back-trace information from standalone
79    programs.  Here is how it works:
80    
81       1. The part of the program from which you want to get backtrace
82          information (usually the whole program) should be wrapped with
83          BackTrace.monitor.  This is a (unit->'a)->'a function, and your
84          main program could be modified from something like
85    
86             fun main (pgm, args) = ...
87    
88         to
89    
90            fun main (pgm, args) = BackTrace.monitor (fn () => ...)
91    
92       2. To be able to access BackTrace.monitor, you have to add
93          library $smlnj-tdp/plugins.cm to the .cm file that contains your
94          main function.
95    
96       3. Remove all compiled code (i.e., all the .cm/ subdirectories that
97          CM might have created in the past for your project).
98    
99       4. Build the system using this command line:
100    
101             ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
102                      myprog.cm MyProg.main myprog
103    
104          instead of the usual
105    
106             ml-build myprog.cm MyProg.main myprog
107    
108    I changed a library name:
109    
110       $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
111    
112    New libraries:
113    
114       $smlnj-tdp/back-trace.cm
115          -- when loaded causes the back-trace plugin to be installed
116       $smlnj-tdp/coverage.cm
117          -- when loaded causes the coverage plugin to be installed
118    
119    ----------------------------------------------------------------------
120    Name: Matthias Blume (blume (at) tti - c (dot) org)
121    Date: 2004/10/18 16:45:00 CDT
122    Tag: blume-20041018-groupowner
123    Description:
124    
125    Added an "obsolete" warning for the "group owner" syntax to CM's parser.
126    
127    Eliminated group owner specs from .cm files throughout the source tree.
128    
129    ----------------------------------------------------------------------
130    Name: Matthias Blume (blume (at) tti - c (dot) org)
131    Date: 2004/10/15 15:45:00 CDT
132    Tag: blume-20041015-coverage
133    Description:
134    
135    * Test coverage tool added!
136    * Further reorganization of tracing-, debugging-, and profiling support:
137    
138        - moved original BTImp -- now called BackTrace -- into a separate
139          library called $/trace-debug-profile.cm
140        - eliminated all mentions of BTrace from SMLofNJ.Internals
141        - only the instrumentation mechanism is now left in the compiler proper
142        - BackTrace module is a plugin which is NOT plugged in by default
143        - Coverage module is another such plugin
144    
145    To get the benefits of any of these plugin modules, the code in
146    question must be compiled with tdp instrumentation turned on.  This
147    can be done by setting SMLofNJ.Internals.TDP.mode to true.
148    (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
149    
150    Plugins are selected at link time.  (Pre-compiled instrumented code
151    can be re-loaded with different plugins in effect.)  When an
152    instrumented module is linked, whatever plugins are at that time
153    enabled will come into effect for that module.
154    
155    To enable the back-trace plugin, load library $/trace-debug-profile.cm
156    and invoke BackTrace.install() (e.g., from the interactive prompt).
157    To enable the coverage plugin, load the same library and invoke
158    Coverage.install().
159    
160    Back-traces are generated automatically on uncaught exceptions and
161    when the code in question explicitly invokes BackTrace.trigger().
162    
163    Coverage (and execution frequency-) information must be queried
164    explicitly by calling Coverage.not_covered and Coverage.hot_spots.
165    
166    ----------------------------------------------------------------------
167    Name: Matthias Blume (blume (at) tti - c (dot) org)
168    Date: 2004/10/14 17:40:00 CDT
169    Tag: blume-20041014-tdp-core
170    Description:
171    
172    Snapshot of a significant overhaul of how the trace/debug/profile support
173    is hooked into the system (specifically: Core and SMLofNJ.Internals).
174    
175    ----------------------------------------------------------------------
176    Name: Matthias Blume (blume (at) tti - c (dot) org)
177    Date: 2004/10/13 16:34:00 CDT
178    Tag: blume-20041013-tdp
179    Description:
180    
181    Some rationalization of names:
182    
183       structure BTrace -> structure TDPInstrument
184       etc.
185    
186    This is is preparation of using the original back-trace
187    instrumentation for other purposes.  "TDP" stands for
188    Trace/Debug/Profile.
189    
190    The control flag controlling whether instrumentation is on or off is now
191    registered under a different name, so instead of running sml as
192    
193     sml -Cinstrument.btrace-mode=true
194    
195    one has to say
196    
197     sml -Ctdp.instrument=true
198    
199    ----------------------------------------------------------------------
200    Name: Matthias Blume (blume (at) tti - c (dot) org)
201    Date: 2004/10/11 16:37:00 CDT
202    Tag: blume-20041011-regions
203    Description:
204    
205    Made some minor modifications to elabcore.sml to have source regions
206    be propagated more tightly -- resulting in better (i.e., smaller)
207    regions being reported in error- and debug messages.
208    
209    ----------------------------------------------------------------------
210    Name: Matthias Blume (blume (at) tti - c (dot) org)
211    Date: 2004/10/08 22:50:00 CDT
212    Tag: blume-20041008-cmkw
213    Description:
214    
215    Fixed handling of keywords in .cm files: After seeing "is" the lexer
216    treats subsequent occurrences of "group", "library", "source", "is",
217    "*", and "-" as ordinary identifiers rather than keywords.
218    
219    Most seriously, this fixes a problem with CM's "shell" tool.  The tool
220    is supposed to accept a tool argument called "source", but this did
221    not work because of the clash with the keyword.
222    
223    ----------------------------------------------------------------------
224    Name: Matthias Blume (blume (at) tti - c (dot) org)
225    Date: 2004/10/07 16:00:00 CDT
226    Tag: blume-20041007-cleanup
227    Description:
228    
229    Assorted cleanup work:
230    
231      - got rid of intstrmap in favor of using the library's
232        hash table implementation
233      - threw out most of the pathnames stuff, as it was not used anyway
234      - simplified tokentable implementation
235      - fixed some minor spelling errors
236    
237    ----------------------------------------------------------------------
238    Name: Matthias Blume (blume (at) tti - c (dot) org)
239    Date: 2004/10/06 15:15:15 CDT
240    Tag: blume-20041006-handler
241    Description:
242    
243    Cleaned up the absyn to reflect the invariant that HANDLE always
244    carries a FNexp as part of the type definition.  This eliminates some
245    superfluous sanity checks at runtime down the road.
246    
247    Some minor cleanup of the btrace code.
248    
249    ----------------------------------------------------------------------
250    Name: Matthias Blume (blume (at) tti - c (dot) org)
251    Date: 2004/10/01 10:20:30 CDT
252    Tag: blume-20041001-slave
253    Description:
254    
255    Added hack to make slave mode work in the presence of the version
256    tool.  (Still, since the master does two passes over the code for
257    CMB.make, the release number gets bumped twice when slaves are
258    attached.  I don't know if this is worth fixing...)
259    
260    ----------------------------------------------------------------------
261    Name: Matthias Blume (blume (at) tti - c (dot) org)
262    Date: 2004/09/30 10:55:00 CDT
263    Tag: blume-20040930-version
264    Description:
265    
266    * Moved the "version" magic into its own little library under
267      src/system/smlnj/internal.  This avoids expensive reconstruction of
268      a stable src/compiler/core.cm.
269    
270    * At the same time, structure CompilerVersion is now known as
271      structure SMLNJVersion.
272    
273    * Arranged for the version tool to NOT kick in when rebuilding the system
274      (makeml -rebuild, fixpt).  Otherwise one would never reach a fixpoint.
275      Also, loading the versiontool does not work when rebuilding the system
276      because CM is not properly initialized at that time.
277    
278    ----------------------------------------------------------------------
279    Name: Matthias Blume (blume (at) tti - c (dot) org)
280    Date: 2004/09/29 14:00:00 CDT
281    Tag: blume-20040929-autoversion
282    Description:
283    
284    Implemented some CM magic to have
285        file src/compiler/TopLevel/main/version.sml
286    generated automagically.
287    The version is taken from two files: config/version and config/release.
288    The first is expected to contain a two-part version number such as 110.49.
289    The second should contain a single number, but it may be missing.
290    
291    If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
292    time the version tool is loaded (which is the first time you say CMB.make),
293    then the tool will increment the value stored in config/release every
294    time CMB.make is invoked.
295    
296    The binfile format is now insensitive to anything beyond the first
297    two components of a version number, so bumping the release does not render
298    binfiles incompatible.  Auto-bumping can be used to keep track of versions
299    during development without invalidating existing binfiles.
300    
301    In any case, every CMB.make updates the date information in version.sml.
302    (This is the date that is printed in the banner.)
303    
304    ----------------------------------------------------------------------
305    Name: Matthias Blume (blume (at) tti - c (dot) org)
306    Date: 2004/09/28 10:53:00 CDT
307    Tag: blume-20040928-controls
308    Description:
309    
310    Some cleanup of the controls code.
311    
312    ----------------------------------------------------------------------
313    Name: Matthias Blume (blume (at) tti - c (dot) org)
314    Date: 2004/09/27 22:08:00 CDT
315    Tag: blume-20040927-controls
316    Description:
317    
318    Added two pieces of functionality to the Controls interface:
319    
320    1.   val save'restore: 'a control -> unit -> unit
321    
322       grabs the current value of the control in stage 1 and restores it
323       in stage 2.
324    
325    2.   val set' : 'a control * 'a -> unit -> unit
326    
327       stores the given value into the control in stage 2 (i.e., delayed)
328       but does all error checking in stage 1.
329       (This is for string controls that need to do parse their argument --
330        something that might fail.  In some cases, notably in CM, one
331        already knows the intended argument but wants to delay the actual
332        assignment until a time when error recovery would be more difficult.)
333    
334    Changed the handling of controls in tool arguments to classes "sml" and
335    "lazysml":
336       - use Controls.save'restore as a more robust way of restoring the
337         old value (in particular: without having to re-parse the string)
338       - use controls to handle the "overload" keyword in the init group
339         (I believe this change actually fixes a long-standing obscure bug.)
340    
341    ----------------------------------------------------------------------
342    Name: Matthias Blume (blume (at) tti - c (dot) org)
343    Date: 2004/09/27 17:00:00 CDT
344    Tag: blume-20040927-lazysml
345    Description:
346    
347    Added a new tool class called "lazysml" to CM's tool chest.  The only
348    difference to "sml" is that compilation is done with Control.lazysml
349    set to true.  A source of class "lazysml" is automatically recognized
350    by a file name suffix of ".lml".
351    
352    In addition to the above feature, the original class "sml" now also
353    supports a tool argument "lazy" which has the same effect.  As a
354    result, the following three lines are equivalent:
355    
356        foo.sml : lazysml
357        foo.sml : sml (lazy)
358        foo.sml (lazy)
359    
360    The setting goes into effect both during parsing and during
361    compilation.  The original setting is restored right after parsing and
362    after compilation, respectively.
363    
364    In addition to all the above, there is also a general mechanism to set
365    ANY of the "controls" that are available at the command line via
366    "-C..." on a per-sml-file basis.  The same rules that apply for "lazy"
367    apply as well. (In fact, "lazy" is implemented as a special case of
368    the general mechanism.)
369    
370    The .cm file syntax uses a new keyword tool argument called "with".
371    There are several ways of indicating the desired settings:
372    
373        foo.sml (with:parser.quotations=true)
374        foo.sml (with:(name:parser.quotations value:true))
375        foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
376        foo.sml (with:(name1=value1 name2=value2 ...))
377        foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
378    
379        etc.
380    
381    Another possible abbreviation is to leave out the =v or value:v part
382    if the name refers to a boolean control (in which case the value is
383    taken to be true).  Thus, one could get lazy sml also by saying:
384    
385        foo.sml (with:parser.lazy-keyword=true)
386        foo.sml (with:parser.lazy-keyword)
387        foo.sml (with:(name:parser.lazy-keyword value:true))
388        foo.sml (with:(name:parser.lazy-keyword))
389    
390    ----------------------------------------------------------------------
391    Name: Matthias Blume (blume (at) tti - c (dot) org)
392    Date: 2004/09/24 16:22:00 CDT
393    Tag: blume-20040924-ppc-long-branch
394    Description:
395    
396    Turned message about "emiting long form of branch" off by default.
397    Added a control flag to turn it back on when desired.
398    
399    ----------------------------------------------------------------------
400    Name: Matthias Blume (blume (at) tti - c (dot) org)
401    Date: 2004/09/24 16:05:00 CDT
402    Tag: blume-20040924-rounding
403    Description:
404    
405    Applied patch for setting rounding modes under Mac OS X.  Thanks to
406    Melissa O'Neill for providing the code!
407    
408    ----------------------------------------------------------------------
409    Name: Matthias Blume (blume (at) tti - c (dot) org)
410    Date: 2004/09/23 17:30:00 CDT
411    Tag: blume-20040923-envvars
412    Description:
413    
414    1. Changed definition of type ControlRegistry.registry_tree to
415       include control_info (i.e., the name of the controlling environment
416       variable).
417    
418    2. Added command-line flags -e and -E to print the names of environment
419       variables that can be used to control internal settings.
420       (This uses the new API mentioned in 1.)
421    
422    ----------------------------------------------------------------------
423    Name: Matthias Blume (blume (at) tti - c (dot) org)
424    Date: 2004/09/13 16:50:00 CDT
425    Tag: Release_110_49
426    Description:
427    
428    New working version (110.49).  NEW BOOTFILES!
429    
430    ----------------------------------------------------------------------
431    Name: Matthias Blume
432    Date: 2004/09/13 16:20:00 CDT
433    Tag: blume-20040913-config-mlrisc
434    Description:
435    
436    Put target "mlrisc" back into the default list.
437    (There is no harm in having it, and some users have expressed their
438    wish to have "mlrisc" included by default.)
439    
440    ----------------------------------------------------------------------
441    Name: John Reppy
442    Date: 2004/09/13
443    Tag: jhr-20040913-signals
444    Description:
445    
446    Fixed the signal masking code to properly nest mask/unmask operations
447    on a per-signal basis.
448    
449    ----------------------------------------------------------------------
450    Name: Matthias Blume (blume (at) tti - c (dot) org)
451    Date: 2004/09/08 13:20:00 CDT
452    Tag: blume-20040908-heap-magic
453    Description:
454    
455    Bumped the heap macig number to 0x09082004 to account for the changed
456    layout of the ML frame under MacOS X.
457    
458    ----------------------------------------------------------------------
459    Name: Allen Leung (leunga (at) reservoir (dot) com)
460    Date: 2004/09/03 11:26:00 EST
461    Tag: leunga-20040903-cygwin-install
462    Description:
463    
464       Added a patch to _arch-n-opsys to enable the Cygwin runtime.
465    The Cygwin runtime is turned on by setting the environment
466    variable SMLNJ_CYGWIN_RUNTIME to 1.
467    
468    ----------------------------------------------------------------------
469    Name: Matthias Blume (blume (at) tti - c (dot) org)
470    Date: 2004/08/31 17:15:00 CDT
471    Tag: blume-20040831-core
472    Description:
473    
474    Added some exports to src/compiler/core.cm upon request by J. Joemann.
475    
476    ----------------------------------------------------------------------
477    Name: Matthias Blume (blume (at) tti - c (dot) org)
478    Date: 2004/08/30 17:55:00 CDT
479    Tag: blume-20040830-installer
480    Description:
481    
482    Upon request by Johannes Joemann:
483    
484    - improved ML code of installer to fall back to coping when renaming
485      fails (i.e., when source and target are on different file systems);
486      the code compiles but has yet to be tested in anger
487    - removed mlrisc from list of default targets (config/targets)
488    
489    ----------------------------------------------------------------------
490    Name: Matthias Blume (blume (at) tti - c (dot) org)
491    Date: 2004/08/27 17:20:00 CDT
492    Tag: blume-20040827-ptreql
493    Description:
494    
495    Added ptreql primop to structure InlineT (upon request from Larry
496    Paulson).
497    
498    ----------------------------------------------------------------------
499    Name: Allen Leung (leunga (at) reservoir (dot) com)
500    Date: 2004/08/15 21:21:00 EST
501    Tag: leunga-110_48-udgraph
502    Description:
503    
504    Another bug fix from Carl Hauser:
505    
506    diff /net/niflab/smlnj48/src/MLRISC/graphs/udgraph.sml udgraph.sml
507    > 48c48
508    > <              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then es else
509    > e::L)
510    > ---
511    > >              | rmv((e as (k,_))::es,L) = rmv(es,if k = i then L else e::L)
512    > Without this, any deletion of an edge in an undirected graph does severe
513    > violence to the graph.
514    
515    ----------------------------------------------------------------------
516    Name: Allen Leung (leunga (at) reservoir (dot) com)
517    Date: 2004/08/10 23:35:00 EST
518    Tag: leunga-110_48-ppc
519    Description:
520    
521       The IBM/MacOS syntax switch on PPC was incorrectly swapped.
522    
523    ----------------------------------------------------------------------
524    Name: Matthias Blume (blume (at) tti - c (dot) org)
525    Date: 2004/08/10 12:00:00 CDT
526    Tag: Release_110_48
527    Description:
528    
529    New working version (110.48).  NEW BOOTFILES!
530    
531    ----------------------------------------------------------------------
532    Name: Allen Leung (leunga (at) reservoir (dot) com)
533    Date: 2004/08/09 12:21:00 EST
534    Tag: leunga-110_47-dijsktra
535    Description:
536    
537    Bug fix from Carl Hauser:
538    
539    single_source_shortest_paths in dijkstra.sml was observed to get wrong
540    answers (by comparing to single_source_shortest_paths in bellman-ford.sml).
541    
542    The problem is that following the expression A.update(dist,s,Num.zero)
543    it is necessary to update the priority queue using Q.decreaseWeight(Q,s).
544    
545    ----------------------------------------------------------------------
546    Name: Matthias Blume (blume (at) tti - c (dot) org)
547    Date: 2004/08/06 18:10:00 CDT
548    Tag: blume-20040806-cmdline
549    Description:
550    
551    Fiddled with handling of command-line options:
552    
553      * sml now quits after processing the command line
554        if -H, -S, -h<n>, or -s<n> appears as the last
555        command-line argument
556      * a new option -q terminates the session when encountered on
557        the command line; subsequent arguments will be ignored
558      * bug fixes: short (erroneous) arguments are no longer ignored
559        completely
560    
561    ----------------------------------------------------------------------
562    Name: Allen Leung (leunga (at) reservoir (dot) com)
563    Date: 2004/08/04 18:17:00 EST
564    Tag: leunga-110_47-ppc-ibm-asm
565    Description:
566    
567      - Added minimal IBM assembly syntax support for PowerPC.
568    
569      - Cygwin: manually changed the file cygwin.def.  Some exported symbols have
570        been altered in the runtime.  We need an automatic way to keep the file
571        in sync.
572    
573    ----------------------------------------------------------------------
574    Name: Matthias Blume (blume (at) tti - c (dot) org)
575    Date: 2004/08/04 14:00:00 CDT
576    Tag: Release_110_47
577    Description:
578    
579    New working version (110.47).  NEW BOOTFILES!
580    
581    ----------------------------------------------------------------------
582    Name: Matthias Blume (blume (at) tti - c (dot) org)
583    Date: 2004/08/03 14:25:00 CDT
584    Tag: blume-20040803-callingconv
585    Description:
586    
587    Added low-level support for choosing C calling conventions by
588    twiddling the type of rawccall.  (See
589    src/compiler/Semant/types/cproto.sml for details.)
590    
591    ----------------------------------------------------------------------
592    Name: Matthias Blume (blume (at) tti - c (dot) org)
593    Date: 2004/08/02 15:55:00 CDT
594    Tag: blume-20040802-backout
595    Description:
596    
597    Backed out of change to win32-filesys.c.  The earlier patch to
598    get_file_time caused CM to produce files with the wrong time stamp.
599    
600    ----------------------------------------------------------------------
601    Name: Matthias Blume (blume (at) tti - c (dot) org)
602    Date: 2004/08/02 14:45:00 CDT
603    Tag: blume-20040802-nlffi-win32
604    Description:
605    
606    Added NLFFI support for Win32, adapted from a patch provided by David
607    Hansel.  This is currently completely untested.  Also, the issue
608    concerning stdcall vs. ccall is still unresolved.
609    
610    ----------------------------------------------------------------------
611    Name: Matthias Blume (blume (at) tti - c (dot) org)
612    Date: 2004/07/30 17:55:00 CDT
613    Tag: blume-20040730-various
614    Description:
615    
616    Gearing up towards 110.47...
617    
618    - various minor bugfixes to ml-nlffigen
619    - a beginning of a manual for nlffi
620    
621    - eliminated 'export name=value' in config/install.sh as this does
622      not work with certain versions of /bin/sh
623      (Thanks to David King at Motorola for catching this.)
624    
625    - several bugfixes provided or suggested by David Hansel at Reactive Systems:
626      - added a test for tm==NULL to gmtime.c and localtime.c
627      - applied patch for incorrect GetFileTime under win32
628      - toSeconds -> toMilliseconds in Win32/win32-process.sml
629    
630    ----------------------------------------------------------------------
631    Name: Matthias Blume (blume (at) tti - c (dot) org)
632    Date: 2004/07/21 18:20:00 CDT
633    Tag: blume-20040721-nlffigen
634    Description:
635    
636    - Fixed minor issue in ml-nlffigen: Now generate structure T_foo
637      for a typedef to an incomplete type, but leave out the "typ" member.
638      (This is just for consistency.)
639    - Started to produce what is supposed to become better (i.e., comprehensive)
640      documentation of what ml-nlffigen does and produces.
641    
642    ----------------------------------------------------------------------
643    Name: Matthias Blume (blume (at) tti - c (dot) org)
644    Date: 2004/07/14 16:25:00 CDT
645    Tag: blume-20040714-union
646    Description:
647    
648    Added C_UNION to c-calls/c-types.sml and updated the machinery
649    (ml-nlffigen, cproto.sml) that conveys C function interface
650    information to the code generator.
651    
652    However, the actual architecture-specific implementation of function
653    arguments and results that are C unions is still not implemented.
654    
655    ----------------------------------------------------------------------
656    Name: Allen Leung (leunga (at) reservoir (dot) com)
657    Date: 2004/07/14 14:38:00 EST
658    Tag: leunga-110_46_1-ppc-lwzu
659    Description:
660    
661        Added these instructions to the PowerPC architecture:
662        LBZU(X), LHZU(X), LWZU(X),
663        STWU(X), STFDU, STFSU
664    
665        etc...
666    
667        Note: I haven't added their instruction encoding into the description.
668    
669    ----------------------------------------------------------------------
670    Name: Allen Leung (leunga (at) reservoir (dot) com)
671    Date: 2004/07/13 15:04:00 EST
672    Tag: leunga-110_46_1-ppc-lwarx
673    Description:
674    
675       Added the two instructions LWARX and STWCX to the PowerPC
676    instruction set.
677    
678       A (untested) rewrite of loop-structure.sml.  The old version
679    is completely broken.
680    
681    ----------------------------------------------------------------------
682    Name: Matthias Blume (blume (at) tti - c (dot) org)
683    Date: 2004/07/13 13:50:00 CDT
684    Tag: blume-20040713-nlffi
685    Description:
686    
687    - use paramAlloc to report c-calls with too many arguments
688      (for PPC version where parameter area is pre-allocated)
689    - added ccall_maxargspace to machspec (to implement the above)
690    - made "make" commend in CM's "make" tool configurable
691    - added option (default: on) for passing the name of the SML/NJ's "bin"
692      directory to "make"; the call looks like this:
693    
694         make <options> SMLNJ_BINDIR=<dir> <target>
695    
696      This can be used by the Makefile to, e.g., pick the "right" version
697      of ml-nlffigen.
698    - minor code tweaks
699    
700    ----------------------------------------------------------------------
701    Name: Matthias Blume (blume (at) tti - c (dot) org)
702    Date: 2004/07/12 22:50:00 CDT
703    Tag: blume-110_46_1-macosx-nlffi
704    Description:
705    
706    NLFFI under Mac OS X now working (sort of).  This is largely untested,
707    though.
708    
709    Note:  1. You have to make a new, clean build of the runtime system.
710           2. There are new BOOTFILES, you have to use them!
711              (Doing the bootstrap process yourself would be *very* painful!
712               If you absolutely have to do it, build the system under
713               a different architecture and then cross-compile.)
714    
715    Version bumped to 110.46.1 to account for runtime data format changes.
716    
717    ----------------------------------------------------------------------
718    Name: Matthias Blume (blume (at) tti - c (dot) org)
719    Date: 2004/06/18 14:30:00 CDT
720    Tag: blume-20040618-unix
721    Description:
722    
723    Changed the implementation of structure Unix so that the same stream
724    is returned every time one of the {text,bin}{In,Out}streamOf functions
725    is invoked on the same proc.  This is not what the spec currently
726    says -- although IMO it arguably should.  (See discussion below.)
727    
728    ----------------------------------------------------------------------
729    Name: Matthias Blume (blume (at) tti - c (dot) org)
730    Date: 2004/06/17 18:15:00 CDT
731    Tag: Release_110_46
732    Description:
733    
734    New working version (110.46).  NEW BOOTFILES!
735    
736    ----------------------------------------------------------------------
737    Name: Matthias Blume (blume (at) tti - c (dot) org)
738    Date: 2004/06/17 17:20:00 CDT
739    Tag: blume-20040617-timer-unix
740    Description:
741    
742    Changed the interface of structures Timer and Unix to match the most
743    recent Basis spec.
744    
745    In the case of Unix there still seems to be an open/weird issue:
746    
747       The {text,bin}{In,Out}streamOf functions are supposed to create
748       fresh streams whenever they are called -- as opposed to have them
749       return the same stream every time.  This design is supposed to
750       prevent space leaks caused by proc values hanging on to streams.
751    
752       The reap function, on the other hand, is supposed to close the
753       streams.  This cannot be done without having a handle on the
754       stream in proc after all...
755    
756    I took the liberty to implement the following stopgap solution:
757    
758      The proc value hangs on to the most recently created stream(s).
759      Reap closes those.  If either or both of the two streams hadn't
760      been created at all yet, then reap will close the corresponding
761      file descriptors directly.
762    
763    PS: I don't understand the original space leak argument anymore.  If
764    a proc hangs on to the imperative stream, then I/O operations on those
765    will advance the state of the cached stream and avoid the space leak.
766    
767    ----------------------------------------------------------------------
768    Name: Matthias Blume (blume (at) tti - c (dot) org)
769    Date: 2004/05/28 16:45:00 CDT
770    Tag: blume-20040528-basis
771    Description:
772    
773    Added signature PACK_REAL and exported functor PrimIO.
774    
775    ----------------------------------------------------------------------
776    Name: Matthias Blume (blume (at) tti - c (dot) org)
777    Date: 2004/05/25 16:00:00 CDT
778    Tag: blume-20040525-group-owner
779    Description:
780    
781    CM now ignores (but still accepts) the "owner" information in group
782    descriptions.  The owner of a group is its next enclosing
783    library. Each group must have a unique owner.  (There is a virtual
784    "toplevel" library that owns groups which are not nested within a real
785    library.)  Previously, each group had to explicitly declare its owner,
786    and CM would check that such a declaration is correct.  The new scheme
787    is to have CM check that for each group there is precisely one owning
788    library.
789    
790    The advantage of the new scheme is that the programmer no longer needs
791    to maintain the somewhat annoying owner information.  The downside is
792    that CM cannot enforce the ownership rule across multiple runs of
793    CM.make.  Fortunately, enclosing the same group in two different
794    libraries A and B which are not part of the same program does not
795    cause real problems.
796    
797    ----------------------------------------------------------------------
798    Name: Matthias Blume (blume (at) tti - c (dot) org)
799    Date: 2004/05/20 16:00:00 CDT
800    Tag: blume-20040520-win32
801    Description:
802    
803    Made the win32 version work again.  (Strangely, a misplaced comma had
804    slipped into win32-process.c which prevented the runtime from being
805    compiled correctly.)
806    
807    Also, included a minor addition to ml-build.bat analogous to what was
808    done in blume-20040519-ml-build.
809    
810    ----------------------------------------------------------------------
811    Name: Matthias Blume (blume (at) tti - c (dot) org)
812    Date: 2004/05/19 22:10:00 CDT
813    Tag: blume-20040519-ml-build
814    Description:
815    
816    Arranged for ml-build to clean up after itself a little bit better.
817    The script generates a temporary SML source file and compiles it using
818    CM, so CM generates metadata (GUID, SKEL, objectfile) for it.  It now
819    gets rid of those at the end, so they don't accumulate under .cm.
820    
821    This required a minor change to install.sh because the name of the
822    metadata directory (default: .cm) is actually configurable at
823    installation time.
824    
825    ----------------------------------------------------------------------
826    Name: Matthias Blume (blume (at) tti - c (dot) org)
827    Date: 2004/05/18 15:50:00 CDT
828    Tag: blume-20040518-mkreader
829    Description:
830    
831    Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
832    implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
833    
834    ----------------------------------------------------------------------
835    Name: Matthias Blume (blume (at) tti - c (dot) org)
836    Date: 2004/05/11 14:35:00 CDT
837    Tag: blume-20040511-win32sock
838    Description:
839    
840    Added previously missing support for many socket-related functions
841    under win32.  Thanks to David Hansel <hansel@reactive-systems.com>
842    for the voluminous patch!
843    
844    (I have not tested this patch under win32 yet.)
845    
846    Here is David's e-mail:
847    
848    Hi,
849    
850    Attached to this email you find a diff against sml/nj 110.45
851    that will enable socket support under Windows.
852    
853    To apply the patch (using unix or cygwin)
854    1) gunzip runtime.diff.gz
855    2) "cd" into "src/runtime" in the source tree of a fresh
856       110.45 installation.
857    3) patch -p 1 < [your/path/to]runtime.diff
858    
859    The code compiles fine but has NOT yet been extensively tested.
860    I only ran a few tests for basic socket client functionality
861    (which worked fine).  Especially the functions that use ioctl
862    are not tested at all and might not work (see below).
863    
864    I implemented this since we want to move to a newer version of sml/nj
865    but need socket support in order to use it.  This is the first time I
866    even had a look at the sml/nj source,  so please review my changes
867    before making this part of the distribution!  Here are a few issues
868    that I think might be better for someone to solve who is more
869    familiar with the sml/nj source (and socket programming):
870    
871    - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
872      exception since I could not figure out what the windows equivalent
873      of these functions is
874    
875    - In sockets-osdep.h there are a some #include statements that are
876      only used in a few files that include sockets-osdep.h
877    
878    - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
879      does not process its return value since I don't know how to
880      report an error upwards.
881    
882    - It would probably be good to have a call to WSACleanup() when
883      the library is unloaded (if there is such a possibility).
884      Otherwise I think Windows will take care of this automatically
885      when the process finishes.
886    
887    - I used ioctlsocket() as a replacement for ioctl() but I have
888      no idea if that is actually the proper replacement on Windows.
889    
890    - All these issues are marked in the code by "FIXME" comments.
891    
892    We use sml/nj extensively in our products and are quite happy
893    with it.  I hope this contribution will help you.
894    
895    Keep up the good work!
896    
897    David
898    
899    ----------------------------------------------------------------------
900    Name: Matthias Blume (blume (at) tti - c (dot) org)
901    Date: 2004/05/11 14:20:00 CDT
902    Tag: blume-20040511-installml
903    Description:
904    
905    Fixed two bugs in installml script.  (Thanks to Vesa A. Norrman for
906    the patch.)
907    
908    ----------------------------------------------------------------------
909    Name: Matthias Blume (blume (at) tti - c (dot) org)
910    Date: 2004/05/11 14:05:00 CDT
911    Tag: blume-20040511-nlffi-netbsd
912    Description:
913    
914    Added support for nlffi under netbsd.  (Thanks to Vesa A. Norrman for
915    the patch.)
916    
917    ----------------------------------------------------------------------
918    Name: Matthias Blume (blume (at) tti - c (dot) org)
919    Date: 2004/05/11 12:05:00 CDT
920    Tag: blume-20040511-exports
921    Description:
922    
923    As per request by Adam Chlipala <adam@hcoop.net>, extended various
924    export lists in compiler-related .cm-files.
925    
926    ----------------------------------------------------------------------
927    Name: Matthias Blume (blume (at) tti - c (dot) org)
928    Date: 2004/05/11 11:35:00 CDT
929    Tag: blume-20040511-allsource
930    Description:
931    
932    The installer now honors the "src-smlnj" target again, although its meaning
933    has changed from "all sources required for the compiler" to "all sources
934    the installer knows about".  In other words, if you enable "src-smlnj"
935    in the "targets" file, then the installer will pull in sources for
936    everything.  (Notice that this refers to source code only.  Compiled
937    code is still only installed for modules that were requested explicitly
938    or which are required for other modules that were requested explicitly.)
939    
940    ----------------------------------------------------------------------
941    Name: Matthias Blume (blume (at) tti - c (dot) org)
942    Date: 2004/04/23 17:40:00 CDT
943    Tag: blume-20040423-ieee-scan
944    Description:
945    
946    Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
947    in the exponent calculation we get INF or ZERO (depending on the mantissa
948    and the sign of the exponent).
949    
950    ----------------------------------------------------------------------
951    Name: Matthias Blume (blume (at) tti - c (dot) org)
952    Date: 2004/04/23 10:40:00 CDT
953    Tag: blume-20040423-ml-build
954    Description:
955    
956    The ml-build script now terminates with a non-0 status when something
957    goes wrong.
958    
959    ----------------------------------------------------------------------
960    Name: Matthias Blume (blume (at) tti - c (dot) org)
961    Date: 2004/04/22 16:35:00 CDT
962    Tag: blume-20040422-Option
963    Description:
964    
965    Made exception Option to be the same as exception Option.Option
966    (as it should be).
967    
968    ----------------------------------------------------------------------
969    Name: Allen Leung (leunga (at) reservoir (dot) com)
970    Date: 2004/03/19 14:40:00 EST
971    Tag: leunga-20040319-cygwin-nlffi
972    Description:
973    
974    Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
975    of SML/NJ.  The problem is that
976    
977       lib = dlopen(NULL, ...)
978       f   = dlsym(lib, "malloc");
979    
980    does not work on Windows unless we explicitly export symbols
981    such as 'malloc' during linking.  We fixed this by explicitly
982    exporting the required symbols with the magic gcc incantation:
983    
984        -Wl,--export-all cygwin.def
985    
986    where cygwin.def is a file containing all the symbols that
987    we wish to export.
988    
989    I suspect this is a Windows problem and we'll have to
990    do the same (somehow with windows compilers) when
991    we build the native win32 version with the system
992    calls LoadLibrary/GetProcAddress.
993    
994    ----------------------------------------------------------------------
995    Name: Matthias Blume (blume (at) tti - c (dot) org)
996    Date: 2004/03/04 16:35:00 CST
997    Tag: blume-20040304-intinf-fmt
998    Description:
999    
1000    Fixed problem with IntInf.fmt (sign would show up on the right instead
1001    of on the left for BIN, OCT, and HEX).
1002    
1003    ----------------------------------------------------------------------
1004    Name: Matthias Blume (blume (at) tti - c (dot) org)
1005    Date: 2004/03/04 11:25:00 CST
1006    Tag: blume-20040304-symlinks
1007    Description:
1008    
1009    Fixed problem with installer script (unix only) where bin/ml-yacc and
1010    friends pointed (via symlinks) to absolute locations instead of just
1011    .run-sml.  This was reported by Vesa A Norrman.
1012    
1013    ----------------------------------------------------------------------
1014    Name: Matthias Blume (blume (at) tti - c (dot) org)
1015    Date: 2004/02/13 14:50:00 CST
1016    Tag: Release_110_45
1017    Description:
1018    
1019    New working version (110.45). New bootfiles.
1020    
1021    ----------------------------------------------------------------------
1022    Name: Matthias Blume (blume (at) tti - c (dot) org)
1023    Date: 2004/01/26 15:15:15 CST
1024    Tag: blume-20040126-toplevel
1025    Description:
1026    
1027    Improved handling of exceptions at the interactive toplevel.
1028    
1029    ----------------------------------------------------------------------
1030    Name: Matthias Blume (blume (at) tti - c (dot) org)
1031    Date: 2004/01/26 11:25:00
1032    Tag: blume-20040126-app
1033    Description:
1034    
1035    Type of top-level "app" corrected.
1036    Added code for setting vp_limitPtrMask to Win32-specific runtime.
1037    
1038    ----------------------------------------------------------------------
1039    Name: Matthias Blume (blume (at) tti - c (dot) org)
1040    Date: 2003/11/18 17:10 CST
1041    Tag: blume-20031118-basis-fiddle
1042    Description:
1043    
1044    - changed Timer interface to what might become the spec
1045    - POSIX_FLAGS -> BIT_FLAGS according to spec
1046    - some other minor discrepancies wrt. spec eliminated
1047    
1048    ----------------------------------------------------------------------
1049    Name: Matthias Blume (blume (at) tti - c (dot) org)
1050    Date: 2003/11/06 12:00:00 CST
1051    Tag: Release_110_44
1052    Description:
1053    
1054    New working version (110.44). New bootfiles.
1055    
1056    ----------------------------------------------------------------------
1057    Name: Matthias Blume (blume (at) tti - c (dot) org)
1058    Date: 2003/11/04 11:50:00 CST
1059    Tag: blume-20031104-move-libraries
1060    Description:
1061    
1062    Eliminated the "dont_move_libraries" directive in config/targets.
1063    (The mechanism was broken and could not be fixed easily.  Moreover,
1064    there does not seem to be any reason not to move all libraries into
1065    lib during installation.  I originally implemented this directive as a
1066    backward-compatibility feature when I first introduced the new CM.
1067    Now that things have been stable for a long time and going back to the
1068    old CM is not an option, there is no reason to keep it around.)
1069    
1070    ----------------------------------------------------------------------
1071    Name: Matthias Blume (blume (at) tti - c (dot) org)
1072    Date: 2003/11/03 16:00:00 CST
1073    Tag: blume-20031103-installdir
1074    Description:
1075    
1076    Made installer honor INSTALLDIR variable again.  (Thanks to Chris
1077    Richards for pointing out the problem and providing the solution.)
1078    
1079    ----------------------------------------------------------------------
1080    Name: Matthias Blume (blume (at) tti - c (dot) org)
1081    Date: 2003/10/01 17:05:00 CDT
1082    Tag: blume-20031001-lal-mlrisc
1083    Description:
1084    
1085    MLRISC bug fix from Lal.
1086    
1087    ----------------------------------------------------------------------
1088    Name: Matthias Blume (blume (at) tti - c (dot) org)
1089    Date: 2003/09/30 16:10:00 CDT
1090    Tag: blume-20030930-primio-bat
1091    Description:
1092    
1093    1. Added openVector, nullRd, and nullWr to PRIM_IO.
1094    2. Improved .bat files (for Win32 port) to make things work under Win95.
1095       (thanks to Aaron S. Hawley for this one)
1096    
1097    ----------------------------------------------------------------------
1098    Name: Matthias Blume (blume (at) tti - c (dot) org)
1099    Date: 2003/09/26 16:05:00 CDT
1100    Tag: blume-20030926-wrappriv
1101    Description:
1102    
1103    Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
1104    
1105    ----------------------------------------------------------------------
1106    Name: Matthias Blume (blume (at) tti - c (dot) org)
1107    Date: 2003/09/26 15:00:00 CDT
1108    Tag: blume-20030926-110_43_3
1109    Description:
1110    
1111    - additional cleanup
1112    - version number bump, NEW BOOTFILES
1113    
1114    ----------------------------------------------------------------------
1115    Name: Matthias Blume (blume (at) tti - c (dot) org)
1116    Date: 2003/09/26 12:00:00 CDT
1117    Tag: blume-20030926-ppautoload
1118    Description:
1119    
1120    I modified the read-eval-print loop so that the autoloader gets
1121    invoked whenever the prettyprinter tries to look up a symbol that
1122    is not currently defined in the toplevel environment but which
1123    appears in CM's autoload registry.  As a result, we see far fewer of
1124    those ?.Foo.Bar.xxx names in the prettyprinter's output.
1125    
1126    In addition to this I tried to clean up some pieces of the Basis
1127    implementation (e.g., Socket, Word8Array) in order to prevent other
1128    instances of these ?.Foo.Bar.xxx names from being printed.
1129    
1130    The mechanism that picks names for types still needs some work, though.
1131    (Right now it seems that if there is a type A.t which is defined to
1132    be B.u, but B is unavailable at toplevel, then A.t gets printed as
1133    "?.B.u" although the perhaps more sensible solution would be to use
1134    "A.t" in this case.  In other words, the prettyprinter should follow
1135    a chain of DEFtycs not farther than there are corresponding toplevel
1136    names in the current environment.)
1137    
1138    ----------------------------------------------------------------------
1139    Name: Matthias Blume (blume (at) tti - c (dot) org)
1140    Date: 2003/09/24 16:31:00 CDT
1141    Tag: blume-20030924-installer
1142    Description:
1143    
1144    Another installer tweak:  All the ML code for the installer is now
1145    compiled during CMB.make and put into a little library called
1146    $smlnj/installer.cm.  The installation then simply invokes
1147    
1148       sml -m $smlnj/installer.cm
1149    
1150    and everything happens automagically.
1151    
1152    Win32:  ML code senses value of environment variable SMLNJ_HOME.
1153    Unix:   ML code senses values of environment variables ROOT, CONFIGDIR,
1154            and BINDIR.
1155    
1156    The new scheme guarantees that the ML code responsible for the installation
1157    is in sync with the APIs of the main system.  Also, the installer is
1158    somewhat faster because the installer script is precompiled.
1159    
1160    ----------------------------------------------------------------------
1161    Name: Matthias Blume (blume (at) tti - c (dot) org)
1162    Date: 2003/09/24 15:35:00 CDT
1163    Tag: blume-20030924-synsock
1164    Description:
1165    
1166    Added a signature SYNCHRONOUS_SOCKET to basis.cm.  This is like SOCKET
1167    but excludes all non-blocking operations.  Defined SOCKET (in Basis)
1168    and CML_SOCKET in terms of SYNCHRONOUS_SOCKET.  Removed superfluous
1169    implementations of non-blocking operations from CML's Socket
1170    structure.
1171    
1172    ----------------------------------------------------------------------
1173    Name: Matthias Blume (blume (at) tti - c (dot) org)
1174    Date: 2003/09/24 15:10:05 CDT
1175    Tag: blume-20030924-sockets
1176    Description:
1177    
1178    1. Fixed SOCKET API and implementation to match Basis spec.
1179       This required changing the internal representation of sockets to one
1180       that remembers (for each socket file descriptor) whether it is currently
1181       blocking or non-blocking.  This state is maintained lazily (i.e., a system
1182       call is made only if the state actually needs to change).
1183    
1184    2. OS-specific details of sockets were moved into separate files, thus
1185       making it possible to unify the bulk of the socket implementations
1186       between Unix and Win32.
1187    
1188    3. CML's socket API changed accordingly.
1189       (Note that we need to remove non-blocking functions from this API
1190       since they are redundant in the case of CML!)
1191    
1192    4. CML's socket implementation now makes use of non-blocking functions
1193       provided by Basis, thus removing all OS-dependent code from this part
1194       of CML.
1195    
1196    5. Changed Real64.precision from 52 to 53.  Minor cleanup in Real64 code.
1197    
1198    ----------------------------------------------------------------------
1199    Name: Matthias Blume (blume (at) tti - c (dot) org)
1200    Date: 2003/09/22 12:10:00 CDT
1201    Tag: blume-20030922-110_43_2
1202    Description:
1203    
1204    Made a new interim version and bootfiles for developer's bootstrapping
1205    convenience.
1206    
1207       110.43.2 -- NEW BOOTFILES
1208    
1209    ----------------------------------------------------------------------
1210    Name: Matthias Blume (blume (at) tti - c (dot) org)
1211    Date: 2003/09/19 15:55:00 CDT
1212    Tag: blume-20030919-cmdir
1213    Description:
1214    
1215    1. new-install.sh -> install.sh
1216    2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
1217    3. tweaked installer so that another name instead of .cm can be chosen
1218       at install time (by setting the CM_DIR_ARC environment variable
1219       during installation); once installation is complete, the name is
1220       fixed
1221    
1222    ----------------------------------------------------------------------
1223    Name: Matthias Blume (blume (at) tti - c (dot) org)
1224    Date: 2003/09/18 16:00:00 CDT
1225    Tag: blume-20030918-110_43_1
1226    Description:
1227    
1228    Made a new interim version and bootfiles for developer's bootstrapping
1229    convenience.
1230    
1231       110.43.1 -- NEW BOOTFILES
1232    
1233    ----------------------------------------------------------------------
1234    Name: Matthias Blume (blume (at) tti - c (dot) org)
1235    Date: 2003/09/18 15:20:00 CDT
1236    Tag: blume-20030918-misc
1237    Description:
1238    
1239    1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
1240       this seems to be controversial at the moment) and used those in
1241       Posix.ProcEnv.times.
1242    
1243    2. Added Time.{from,to}Nanoseconds to Time.
1244    
1245    3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
1246       For example, fromLargeInt never needs to look at more than 3 "big
1247       digits" to get its 53 bits of precision.
1248    
1249    ----------------------------------------------------------------------
1250    Name: Matthias Blume (blume (at) tti - c (dot) org)
1251    Date: 2003/09/17 16:30:00 CDT
1252    Tag: blume-20030917-real32-slices
1253    Description:
1254    
1255    Added an entry to the primitive environment
1256    (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
1257    added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
1258    
1259    Removed some of the "magic" constants in real64.sml and replaced them
1260    with code that generates these values from their corresponding
1261    integer counterparts.
1262    
1263    Made all(?) the slice-related changes to the Basis and made everything
1264    compile again...
1265    
1266    ----------------------------------------------------------------------
1267    Name: Matthias Blume (blume (at) tti - c (dot) org)
1268    Date: 2003/09/15 17:45:00 CDT
1269    Tag: blume-20030915-rbase
1270    Description:
1271    
1272    Fixed bug in Real.fromLargeInt.
1273    
1274    ----------------------------------------------------------------------
1275    Name: Matthias Blume (blume (at) tti - c (dot) org)
1276    Date: 2003/09/13 18:11:00 CDT
1277    Tag: blume-20030913-libinstall
1278    Description:
1279    
1280    Minor bugfix in config/libinstall (set anchor with path to
1281    standalone tool after installing it, otherwise libraries that
1282    need ml-lex or ml-yacc won't compile the first time the installer
1283    runs).
1284    
1285    ----------------------------------------------------------------------
1286    Name: Matthias Blume (blume (at) tti - c (dot) org)
1287    Date: 2003/09/12 11:45:00 CDT
1288    Tag: blume-20030912-various
1289    Description:
1290    
1291     - fixed bug in Real.toLargeInt
1292     - fixed bug in Posix.ProcEnv.times
1293     - changed inputLine functions to return an option
1294     - minor installer improvements / bugfixes
1295     - changed default @SMLalloc parameter for x86/celeron to 64k
1296    
1297    ----------------------------------------------------------------------
1298    Name: Matthias Blume (blume (at) tti - c (dot) org)
1299    Date: 2003/09/09 22:00:00 CDT
1300    Tag: Release_110_43
1301    Description:
1302    
1303        New working release 110.43.  New bootfiles.
1304    
1305    ----------------------------------------------------------------------
1306    Name: Matthias Blume (blume (at) tti - c (dot) org)
1307    Date: 2003/09/09 19:20:00 CDT
1308    Tag: blume-20030909-installer
1309    Description:
1310    
1311    Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
1312    Modified config/install.bat to take advantage of it.  Also modified
1313    config/install.sh (and called it config/new-install.sh) to take advantage
1314    of it on Unix systems.  (The SML code is (supposed to be) platform-
1315    independent.)
1316    
1317    The installer can now install everything under Win32
1318    as well as under *nix as long as it compiles.
1319    
1320    Other changes:
1321    
1322      - made CML compile again under Win32
1323      - made eXene compile under Win32 (by providing a fake structure UnixSock
1324        and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
1325      - fixed a bug in nowhere: it assumed that type OS.Process.status is the
1326        same as type int;  under Win32 it isn't
1327      - fixed some slice-related problems in the win32-specific parts of CML
1328      - added a functor argument "sameVol" to os-path-fn.sml in the Basis
1329        (under Win32, the volume name is case-insensitive, and the
1330        OS.Path code compares volume names for equality)
1331    
1332    ----------------------------------------------------------------------
1333    Name: Matthias Blume (blume (at) tti - c (dot) org)
1334    Date: 2003/09/08 11:55:00 CDT
1335    Tag: blume-20030908-fullpath
1336    Description:
1337    
1338    Made Win32 version of OS.FileSys.fullPath return current directory
1339    when given an empty string.  This is what the spec says, and incidentally,
1340    CM depends on it.  (CM otherwise goes into an infinite loop in certain
1341    cases when presented with the name of a non-existing .cm file.)
1342    
1343    ----------------------------------------------------------------------
1344    Name: Matthias Blume (blume (at) tti - c (dot) org)
1345    Date: 2003/09/04 16:30:00 CDT
1346    Tag: blume-20030905-slices-etc
1347    Description:
1348    
1349      1. Changed interface to vectors and arrays in Basis to match
1350         (draft) Basis spec.
1351      2. Added signatures and implementations of slices according to
1352         Basis spec.
1353      3. Edited source code throughout the system to make it compile again
1354         under 1. and 2.  (In some cases code had to be added to have it
1355         match the new signatures.)
1356      4. MLRISC should be backward-compatible: the copies of the originals
1357         of files that needed to change under 3. were retained, the .cm files
1358         check the compiler version number and use old versions when
1359         appropriate.
1360      5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
1361         dirstream -> string option (in accordance with Basis spec).
1362      6. When generating code that counts lines, ml-lex used function
1363         CharVector.foldli, taking advantage of its old interface.
1364         This has been replaced with the corresponding code from
1365         CharVectorSlice.  (html-lex must be re-lexed!)
1366      7. BitArray in smlnj-lib/Util has been extended/modified to match the
1367         new MONO_ARRAY signature.  (Do we need BitArraySlice?)
1368      8. Removed temporary additions (fromInternal, toInternal) from the
1369         (now obsolete) IntInf in smlnj-lib/Util.
1370      9. Cleaned up structure Byte.
1371     10. Added localOffset, scan, and fromString to Date (according to spec).
1372         Cleaned/corrected implementation of Date.
1373         (Still need to check for correctness; implement better canonicalizeDate.)
1374     11. Added "scan" to signature IEEE_REAL.
1375     12. Some improvements to IntInf [in particular: efficiency-hack for
1376         mod and rem when second operand is 2 (for parity checks).]
1377     13. Changed representation of type Time.time, using a single IntInf.int
1378         value counting microseconds.  This considerably simplified the
1379         implementation of structure Time.  We now support negative time
1380         values; scan and fromString handle signs.
1381     14. Functor PrimIO now takes two additional arguments (VectorSlice and
1382         ArraySlice).
1383    
1384    ----------------------------------------------------------------------
1385    Name: Matthias Blume (blume (at) tti - c (dot) org)
1386    Date: 2003/08/28 17:00:00 CDT
1387    Tag: blume-20030828-intinf
1388    Description:
1389    
1390    This is a major update which comes with a version number bump
1391    (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
1392    and an implementation of IntInf in the Basis.
1393    
1394    There are a fairly large number of related changes and updates throughout
1395    the system:
1396    
1397    Basis:
1398            - Implemented IntInf.
1399            - Made LargeInt a projection of IntInf (by filtering through INTEGER).
1400            - Added some missing Real64 operations, most notably Real.toLargeInt.
1401            - Added FixedInt as a synonym for Int32.
1402    
1403    compiler:
1404            * Added support for a built-in intinf type.
1405              - literals
1406              - pattern matching
1407              - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
1408              - overloading on literals and operations
1409    
1410            This required adding a primitive type intinf, some additional
1411            primops, and implementations for several non-trivial intinf
1412            operations in Core.  (The intinf type is completely abstract
1413            to the compiler; all operations get delegated back to the Core.)
1414    
1415            * Intinf equality is handled by polyequal.  However, the compiler
1416            does not print its usual warning in this case (since polyequal
1417            is the right thing to do there).
1418    
1419            * Improved the organization of structure InlineT.
1420    
1421            * A word about conversion primops:
1422            If conversions involving intinf do not cancel out during
1423            CPS contract, then the compiler must insert calls to Core functions.
1424            Since all core access must be resolved already during the FLINT
1425            translate phase, it would be too late a the time of CPS contract
1426            to add new Core calls.  For this reason, conversion primops
1427            for intinf carry two arguments:  1. the numeric argument that
1428            they are supposed to convert, and 2. the Core function that
1429            can help with this conversion if necessary.  If CPS contract
1430            eliminates a primop, then the associated Core function becomes
1431            dead and goes away.  Intinf conversion primops that do not get
1432            eliminated by CPS contract get rewritten into calls of their
1433            core functions by a separate, new phase.
1434    
1435    interactive system:
1436            - Control.Print.intinfDepth controls max length of intinf constants
1437            being printed. (Analogous to Control.Print.stringDepth.)
1438            - Cleanup in printutil and pputil: got rid of unused stuff and
1439            duplicates; replaced some of the code with code that makes better
1440            use of library functionality.
1441    
1442    CM:
1443            Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
1444            are no longer silent.
1445    
1446    CKIT:
1447            Fixed mismatched uses of Int32 and LargeInt.  I always decided
1448            in favor of LargeInt -- which is now the same as IntInf.
1449            CKIT-knowledgable people should check whether this is what's
1450            intended and otherwise change things back to using Int32 or
1451            FixedInt.
1452    
1453    Throughout the code:
1454            Started using IntInf.int literals and built-in operations
1455            (e.g., comparison with 0) where this seems appropriate.
1456    
1457    
1458    ----------------------------------------------------------------------
1459    Name: Dave MacQueen (dbm@cs.uchicago.edu)
1460    Date: 2003/08/13 11:36:00 CDT
1461    Tag: dbm-20030813-mcz-merge1
1462    Description:
1463    
1464    Merging changes from the mcz-branch development branch into trunk.
1465    These changes involve replacement of the emulated old prettyprinter
1466    interface with direct use of the SML/NJ Lib PP library, and fixing
1467    of a couple of bugs (895, 1186) relating to error messages.  A new
1468    prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
1469    has been added.
1470    
1471    ----------------------------------------------------------------------
1472    Name: Matthias Blume (blume (at) tti - c (dot) org)
1473    Date: 2003/08/11 15:45:00 CDT
1474    Tag: blume-20030811-windows
1475    Description:
1476    
1477    Version number bumped to 110.42.9.  NEW BOOTFILES!!!
1478    
1479        http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
1480    
1481    This patch restores SML/NJ's ability to run under win32.  There are a
1482    number of changes, including fixes for several bugs that had gone
1483    unnoticed until now:
1484    
1485      - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
1486        trying to run the win32 version from within cygwin.)
1487    
1488      - There are a number of simple .bat scripts that substitute for their
1489        corresponding Unix shell-scripts.  (See below.)
1490    
1491      - The internals of ml-build have been modified slightly.  The main
1492        difference is that instead of calling ".link-sml" (or link-sml.bat)
1493        using OS.Process.system, the ML process delegates this task back
1494        to the script.  Otherwise problems arise in mixed environments such
1495        as Cygwin where scripts look and work like Unix scripts, but
1496        where OS.Process.system cannot run them.
1497    
1498      - In CM, the srcpath pickler used native pathname syntax -- which
1499        is incorrect in the case of cross-compilation.  The new pickle format
1500        is independent of platform-specific naming conventions.
1501    
1502      - Path configuration files (such as lib/pathconfig) can now choose
1503        between native and standard syntax.  Placing a line of the form
1504    
1505            standard!
1506    
1507        into the file causes all subsequent paths to be interpreted using
1508        CM standard pathname syntax (= Unix conventions); a line
1509    
1510            native!
1511    
1512        switches back to native style.  This was needed so that
1513        path config files can be written portably, see src/system/pathconfig.
1514    
1515      - Runtime system:
1516    
1517          - win32-filesys.c:  get_file_time and set_file_time now
1518            access modification time, not creation time.
1519    
1520          - I/O code made aware of new array representation.
1521    
1522          - Bug fixes in X86.prim.masm.
1523    
1524       - src/system/makeml made aware of win32. (For use under cygwin
1525            and other Unix-environments for windows.)
1526    
1527       - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
1528         which caused BinIO.inputAll to fail consistently.
1529    
1530    .bat scripts:
1531    
1532       Windows .bat scripts assume that SMLNJ_HOME is defined.
1533    
1534       - sml.bat, ml-yacc.bat, ml-lex.bat:  Driver scripts for standalone
1535         applications (sml, ml-yacc, ml-lex).
1536       - ml-build.bat: analogous to ml-build.
1537       - config\install.bat:  Analogous to config/install.sh.  This requires
1538         that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
1539         (nmake etc. must be on the path, and vcvars32 must have been run.)
1540         Moreover, sources for ml-lex and ml-yacc need to exist under src,
1541         and the bootfile hierarchy must have been unpacked under
1542         sml.boot.x86-win32.
1543         The script is very primitive and does a poor job at error checking.
1544         It only installs the base system, ml-lex, and ml-yacc.  No other
1545         libraries are being installed (i.e., you get only those that
1546         are part of the compiler.)
1547       - link-sml.bat:  analogous to .link-sml, but not currently used
1548    
1549    Unrelated bug fixes:
1550    
1551      - ml-nlffigen now exports structures ST_* corresponding to incomplete
1552        types.
1553      - Added getDevice to PP/src/pp-debug-fn.sml.  (Would not compile
1554        otherwise.)
1555    
1556    ----------------------------------------------------------------------
1557    Name: Dave MacQueen (macqueen@cs.uchicago.edu)
1558    Date: 2003/06/17
1559    Tag: macqueen-20030617-bug895
1560    Description:
1561    
1562    Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
1563    Tag will be used for new development branch (mcz-branch) for
1564    use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
1565    
1566    ----------------------------------------------------------------------
1567    Name: Matthias Blume (blume (at) tti - c (dot) org)
1568    Date: 2003/05/27 16:55:00 CDT
1569    Tag: blume-20030527-polyeq
1570    Description:
1571    
1572    Tried to eliminated most cases of polymorphic equality.
1573    
1574    ----------------------------------------------------------------------
1575    Name: Matthias Blume (blume (at) tti - c (dot) org)
1576    Date: 2003/05/21 17:45:00 CDT
1577    Tag: blume-20030517-complete
1578    Description:
1579    
1580    Two changes:
1581    
1582      1. Added a flag for controlling whether non-exhaustive bindings will
1583         be treated as errors (default is false).
1584      2. Cleaned up the *entire* source tree so that CMB.make goes through
1585         without a single non-exhaustive match- or bind warning.
1586    
1587    ----------------------------------------------------------------------
1588    Name: Matthias Blume (blume (at) tti - c (dot) org)
1589    Date: 2003/05/17 10:20:00 CDT
1590    Tag: blume-20030517-absyn
1591    Description:
1592    
1593    1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
1594    
1595       This mainly affects the quality of error messages.  However, some
1596       of the code is now more straightforward than before. (Treatment of
1597       the above four constructs in translate.sml is much simpler than
1598       the "macro-expansion" that was going on before.  Plus, the mach-
1599       compiler no longer gets invoked just to be able to compile an
1600       if-expression.)
1601    
1602    2. The ErrorMsg.Error exception is now caught and absorbed by the
1603       interactive loop.
1604    
1605    ----------------------------------------------------------------------
1606    Name: Allen Leung
1607    Date: 2003/05/16 13:05:00 CDT
1608    Tag: leunga-20030516-cygwin-runtime
1609    Description:
1610    
1611        Ported the runtime system to cygwin, which uses the unix
1612    x86-unix bin files.  Missing/buggy features:
1613    
1614       o getnetbyname, getnetbyaddr: these functions seem to be missing in
1615         the Cygwin library.
1616       o Ctrl-C handling may be flaky.
1617       o Windows system calls and Windows I/O are not supported.
1618    
1619       A new set of binfiles is located at:
1620    
1621         http://www.dorsai.org/~leunga/boot.x86-unix.tgz
1622    
1623       This is only needed for bootstrapping the cygwin version of smlnj.
1624       Other x86 versions can use the existing binfiles.
1625    
1626    ----------------------------------------------------------------------
1627    Name: Matthias Blume
1628    Date: 2003/04/08 15:42:00 CDT
1629    Tag: blume-20030408-listpair
1630    Description:
1631    
1632    1. Added a target 'mlrisc' to installer.
1633    
1634    2. Added missing elements to structure ListPair.
1635    
1636    ----------------------------------------------------------------------
1637    Name: Allen Leung
1638    Date: 2003/01/07 10:40:00 EST
1639    Tag: leunga-20030107-int-rem
1640    Description:
1641    
1642    Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
1643    The arguments to the SUBL instruction were swapped.
1644    
1645    ----------------------------------------------------------------------
1646    Name: Matthias Blume
1647    Date: 2002/12/12 16:25:00 EST
1648    Tag: blume-20021212-risc-ra
1649    Description:
1650    
1651    Fixed a serious bug in the rewrite code for FP spilling/reloading that
1652    sent the RA into an infinite loop when floating point registers get
1653    spilled.  (Because of this bug, e.g., nucleic stopped compiling between
1654    110.37 and 110.38.)
1655    There was another set of potential problems related to the handling of
1656    MLRISC annotations (but those did not yet cause real problems, apparently).
1657    
1658    ----------------------------------------------------------------------
1659    Name: Matthias Blume
1660    Date: 2002/12/06 22:40:00 EST
1661    Tag: blume-20021206-cm-fileid
1662    Description:
1663    
1664    Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
1665    This fixes the problem of CM getting confused by files that suddenly
1666    change their identity (e.g., by getting unlinked and recreated by some
1667    text editor such as vi).  There might be a better/cheaper/cleaner way
1668    of doing this, but for now this will have to do.
1669    
1670    ----------------------------------------------------------------------
1671    Name: Matthias Blume
1672    Date: 2002/10/28 09:50:00 EST
1673    Tag: blume-20021028-typecheck
1674    Description:
1675    
1676    Exported structure Typecheck from $smlnj/viscomp/core.cm.
1677    
1678    ----------------------------------------------------------------------
1679    Name: Matthias Blume
1680    Date: 2002/10/17 09:10:00 EDT
1681    Tag: Release_110_42
1682    Description:
1683    
1684    In good old tradition, there has been a slight hiccup so that we have
1685    to patch 110.42 after the fact.   The old release tag has been replaced
1686    (see below).
1687    
1688    The change solves a problem with two competing approaches the
1689    configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
1690    each other's way.
1691    
1692    This change only affects the runtime system code and the installer script.
1693    (No new bootfiles.)
1694    
1695    ----------------------------------------------------------------------
1696    Name: Matthias Blume
1697    Date: 2002/10/16 12:00:00 EDT
1698    Tag: Release_110_42_removed
1699    Description:
1700    
1701    New working release.  New bootfiles.
1702    
1703    ----------------------------------------------------------------------
1704    Name: Matthias Blume
1705    Date: 2002/10/10 13:10:00 EDT
1706    Tag: blume-20021010-ppc-divs
1707    Description:
1708    
1709    The mltree operator DIVS must be implemented with an overflow check on
1710    the PPC because the hardware indicates divide-by-zero using "overflow" as
1711    well.
1712    
1713    ----------------------------------------------------------------------
1714    Name: Matthias Blume
1715    Date: 2002/07/23 11:45:00
1716    Tag: blume-20020723-smlnj-home
1717    Description:
1718    
1719    Sml now senses the SMLNJ_HOME environment variable.  If this is set,
1720    then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
1721    CM_PATHCONFIG is also set), the path configuration file is assumed
1722    to be in $SMLNJ_HOME/lib/pathconfig.  This way one can easily move
1723    the entire tree to some other place and everything will "just work".
1724    
1725    (Companion commands such as ml-build and ml-makedepend also sense this
1726    variable.)
1727    
1728    ----------------------------------------------------------------------
1729    Name: Matthias Blume
1730    Date: 2002/07/12 21:19:00 EDT
1731    Tag: blume-20020712-liveness
1732    Description:
1733    
1734    Exported two useful "step" functions from liveness module (MLRISC).
1735    
1736    ----------------------------------------------------------------------
1737    Name: Matthias Blume
1738    Date: 2002/07/05 16:00 EDT
1739    Tag: Release_110_41
1740    Description:
1741    
1742    New working release.  New bootfiles.
1743    
1744    ----------------------------------------------------------------------
1745    Name: Matthias Blume
1746    Date: 2002/07/05 10:25:00 EDT
1747    Tag: blume-20020705-btimp
1748    Description:
1749    
1750    Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
1751    other clients can set up backtracing support.
1752    
1753    ----------------------------------------------------------------------
1754    Name: Matthias Blume
1755    Date: 2002/06/25 17:23:00 EDT
1756    Tag: blume-20020625-fpmax
1757    Description:
1758    
1759    Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
1760    case.  (The sense of the isNaN test was reversed -- which made min and
1761    max always return their first argument.)
1762    
1763    ----------------------------------------------------------------------
1764    Name: Matthias Blume
1765    Date: 2002/06/11
1766    Tag: blume-20020611-unixpath
1767    Description:
1768    
1769    Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
1770    
1771    ----------------------------------------------------------------------
1772    Name: Matthias Blume
1773    Date: 2002/06/10 16:35:00 EDT
1774    Tag: blume-20020610-ieeereal
1775    Description:
1776    
1777    I back-ported my implementation of IEEEReal.fromString from the
1778    idlbasis-devel branch so that we can test it.
1779    
1780    Another small change is that ppDec tries to give more information
1781    than just "<sig>" in the case of functors.  However, this code is
1782    broken in some mysterious way if the functor's body's signature
1783    has not been declared by ascription but gets inferred from the
1784    implementation.  This needs fixing...
1785    
1786    ----------------------------------------------------------------------
1787    Name: Matthias Blume
1788    Date: 2002/05/31
1789    Tag: blume-20020531-btrace-mode
1790    Description:
1791    
1792    Resurrected SMLofNJ.Internals.BTrace.mode.  (It accidentally fell by
1793    the wayside when I switched over to using Controls everywhere.)
1794    
1795    ----------------------------------------------------------------------
1796    Name: Lal George
1797    Date: 2002/05/23 12:21:40 EDT
1798    Tag: george-20020523-visual-labels
1799    Description:
1800    
1801    Labels are now displayed in the graphical output to make
1802    the fall-through and target blocks obvious.
1803    
1804    ----------------------------------------------------------------------
1805    Name: Matthias Blume
1806    Date: 2002/05/22 11:03:00 EDT
1807    Tag: blume-20020522-shrink
1808    Description:
1809    
1810    John tweaked yesterday's fix for 1131 to handle an out-of-memory
1811    situation that comes up when allocating huge arrays.
1812    
1813    ----------------------------------------------------------------------
1814    Name: Matthias Blume
1815    Date: 2002/05/21 16:00:00 EDT
1816    Tag: Release_110_40
1817    Description:
1818    
1819    New working release (110.40).  New bootfiles.
1820    
1821    [Also: John Reppy fixed GC bug 1131.]
1822    
1823    ----------------------------------------------------------------------
1824    Name: Matthias Blume
1825    Date: 2002/05/21 12:35:00 EDT
1826    Tag: blume-20020521-cmdoc
1827    Description:
1828    
1829    CM documentation update.
1830    
1831    ----------------------------------------------------------------------
1832    Name: Matthias Blume
1833    Date: 2002/05/21 10:55:00 EDT
1834    Tag: blume-20020521-misc
1835    Description:
1836    
1837    - John tweaked runtime to be silent on heap export (except when
1838      GC messages are on).
1839    - I added a few more things (cross-compiling versions of CMB) to
1840      config/preloads (as suggestions).
1841    
1842    ----------------------------------------------------------------------
1843    Name: Matthias Blume
1844    Date: 2002/05/20 22:25:00 EDT
1845    Tag: blume-20020520-controls
1846    Description:
1847    
1848    - Added ControlUtil structure to control-lib.cm.
1849    - Use it throughout.
1850    - Used Controls facility to define MLRISC controls (as opposed to
1851      registering MLRISC control ref cells with Controls after the fact)
1852    - Fixed messed-up controls priorities.
1853    
1854    * Removed again all the stuff from config/preloads that one wouldn't
1855      be able to preload at the time the initial heap image is built.
1856      (Many libraries, e.g., CML, do not exist yet at this time.  The
1857       only libraries that can be preloaded via config/preloads are those
1858       that come bundled with the bootfiles.)
1859    
1860    ----------------------------------------------------------------------
1861    Name: Matthias Blume
1862    Date: 2002/05/20 10:59:00 EDT
1863    Tag: blume-20020520-preloads
1864    Description:
1865    
1866    Added a lot of commented-out suggestions for things to be included
1867    in config/preloads.
1868    
1869    ----------------------------------------------------------------------
1870    Name: Allen Leung
1871    Date: 2002/05/18 14:20:00 EDT
1872    Tag: leunga-20020518-mdl
1873    Description:
1874    
1875    o Made the mdl tool stuff compile and run again.
1876    o I've disabled all the stuff that depends on RTL specifications; they
1877      are all badly broken anyway.
1878    
1879    ----------------------------------------------------------------------
1880    Name: Matthias Blume
1881    Date: 2002/05/17 16:49:00 EDT
1882    Tag: blume-20020517-controls
1883    Description:
1884    
1885    0. John Reppy made several modifications to the SML/NJ library.
1886       In particular, there is a shiny new controls-lib.cm.
1887    
1888    1. Pushed new controls interface through compiler so that everything
1889       compiles again.
1890    
1891    2. Added FormatComb and FORMAT_COMB to the CML version of the
1892       SML/NJ library (so that CML compiles again).
1893    
1894    3. Modified init scripts because XXX_DEFAULT environment variables
1895       are no longer with us.  (Boot-time initialization is now done
1896       using the same environment variables that are also used for
1897       startup-time initialization of controls.)
1898    
1899    ----------------------------------------------------------------------
1900    Name: Lal George
1901    Date: 2002/05/15 09:20:10 EDT
1902    Tag: george-20020515-pseudo-op-decls
1903    Description:
1904    
1905            All pseudo-ops emitted before the first segment declaration
1906    such as TEXT, DATA, and BSS directives are assumed to be global
1907    declarations and are emitted first in the assembly file. This is
1908    useful in a number of situations where one has pseudo-ops that are not
1909    specific to any segment, and also works around the constraint that one
1910    cannot have client pseudo-ops in the TEXT segment.
1911    
1912            Because no segment is associated with these declarations it is
1913    an error to allocate any space or objects before the first segment
1914    directive and an exception will be raised. However, we cannot make
1915    this check for client pseudo-ops.
1916    
1917            These top level declarations are a field in the CFG graph_info.
1918    In theory you can continue to add to this field after the CFG has been
1919    built -- provided you know what you are doing;-)
1920    
1921    ----------------------------------------------------------------------
1922    Name: Matthias Blume
1923    Date: 2002/05/13 16:40:00 EDT
1924    Tag: blume-20020513-pp-etc
1925    Description:
1926    
1927    A few minor bugfixes:
1928    
1929      - Stopgap measure for bug recently reported by Elsa Gunter (ppDec).
1930        (Bogus printouts for redefined bindings still occur.  Compiler
1931        bug should no longer occur now.  We need to redo the prettyprinter
1932        from scratch.)
1933    
1934      - CM pathname printer now also adds escape sequences for ( and )
1935    
1936      - commend and docu fixes for ml-nlffi
1937    
1938    ----------------------------------------------------------------------
1939    Name: Matthias Blume
1940    Date: 2002/05/10 16:40:00 EDT
1941    Tag: blume-20020510-erg-textio
1942    Description:
1943    
1944    Applied the following bugfix provided by Emden Gansner:
1945    
1946        Output is corrupted when outputSubstr is used rather than output.
1947    
1948        The problem occurs when a substring
1949    
1950            ss = (s, dataStart, dataLen)
1951    
1952        where dataStart > 0, fills a stream buffer with avail bytes left.
1953        avail bytes of s, starting at index dataStart, are copied into the
1954        buffer, the buffer is flushed, and then the remaining dataLen-avail
1955        bytes of ss are copied into the beginning of the buffer. Instead of
1956        starting this copy at index dataStart+avail in s, the current code
1957        starts the copy at index avail.
1958    
1959        Fix:
1960        In text-io-fn.sml, change line 695 from
1961             val needsFlush = copyVec(v, avail, dataLen-avail, buf, 0)
1962        to
1963             val needsFlush = copyVec(v, dataStart+avail, dataLen-avail, buf, 0)
1964    
1965    ----------------------------------------------------------------------
1966    Name: Matthias Blume
1967    Date: 2002/04/12 13:55:00 EDT
1968    Tag: blume-20020412-assyntax
1969    Description:
1970    
1971    1. Grabbed newer assyntax.h from the XFree86 project.
1972    2. Fiddled with how to compile X86.prim.asm without warnings.
1973    3. (Very) Minor cleanup in CM.
1974    
1975    ----------------------------------------------------------------------
1976    Name: Matthias Blume
1977    Date: 2002/04/01 (no joke!) 17:07:00 EST
1978    Tag: blume-20020401-x86div
1979    Description:
1980    
1981    Added full support for div/mod/rem/quot on the x86, using the machine
1982    instruction's two results (without clumsily recomputing the remainder)
1983    directly where appropriate.
1984    
1985    Some more extensive power-of-two support was added to the x86 instruction
1986    selector (avoiding expensive divs, mods, and muls where they can be
1987    replaced with cheaper shifts and masks).  However, this sort of thing
1988    ought to be done earlier, e.g., within the CPS optimizer so that
1989    all architectures benefit from it.
1990    
1991    The compiler compiles to a fixed point, but changes might be somewhat
1992    fragile nevertheless.  Please, report any strange things that you might
1993    see wrt. div/mod/quot/rem...
1994    
1995    ----------------------------------------------------------------------
1996    Name: Matthias Blume
1997    Date: 2002/03/29 17:22:00
1998    Tag: blume-20020329-div
1999    Description:
2000    
2001    Fixed my broken div/mod logic.  Unfortunately, this means that the
2002    inline code for div/mod now has one more comparison than before.
2003    Fast paths (quotient > 0 or remainder = 0) are not affected, though.
2004    The problem was with quotient = 0, because that alone does not tell
2005    us which way the rounding went.  One then has to look at whether
2006    remainder and divisor have the same sign...  :(
2007    
2008    Anyway, I replaced the bootfiles with fresh ones...
2009    
2010    ----------------------------------------------------------------------
2011    Name: Matthias Blume
2012    Date: 2002/03/29 14:10:00 EST
2013    Tag: blume-20020329-inlprims
2014    Description:
2015    
2016    NEW BOOTFILES!!!    Version number bumped to 110.39.3.
2017    
2018    Primops have changed. This means that the bin/boot-file formats have
2019    changed as well.
2020    
2021    To make sure that there is no confusion, I made a new version.
2022    
2023    
2024    CHANGES:
2025    
2026    * removed REMT from mltree (remainder should never overflow).
2027    
2028    * added primops to deal with divisions of all flavors to the frontend
2029    
2030    * handled these primops all the way through so they map to their respective
2031      MLRISC support
2032    
2033    * used these primops in the implementation of Int, Int32, Word, Word32
2034    
2035    * removed INLDIV, INLMOD, and INLREM as they are no longer necessary
2036    
2037    * parameterized INLMIN, INLMAX, and INLABS by a numkind
2038    
2039    * translate.sml now deals with all flavors of INL{MIN,MAX,ABS}, including
2040      floating point
2041    
2042    * used INL{MIN,MAX,ABS} in the implementation of Int, Int32, Word, Word32,
2043      and Real (but Real.abs maps to a separate floating-point-only primop)
2044    
2045    
2046    TODO items:
2047    
2048    * Hacked Alpha32 instruction selection, disabling the selection of REMx
2049      instructions because the machine instruction encoder cannot handle
2050      them.  (Hppa, PPC, and Sparc instruction selection did not handle
2051      REM in the first place, and REM is supported by the x86 machine coder.)
2052    
2053    * Handle DIV and MOD with DIV_TO_NEGINF directly in the x86 instruction
2054      selection phase.  (The two can be streamlined because the hardware
2055      delivers both quotient and remainder at the same time anyway.)
2056    
2057    * Think about what to do with "valOf(Int32.minInt) div ~1" and friends.
2058      (Currently the behavior is inconsistent both across architectures and
2059      wrt. the draft Basis spec.)
2060    
2061    * Word8 should eventually be handled natively, too.
2062    
2063    * There seems to be one serious bug in mltree-gen.sml.  It appears, though,
2064      as if there currently is no execution path that could trigger it in
2065      SML/NJ.  (The assumptions underlying functions arith and promotable do not
2066      hold for things like multiplication and division.)
2067    
2068    ----------------------------------------------------------------------
2069  Name: Matthias Blume  Name: Matthias Blume
2070  Date: 2002/03/27 16:27:00 EST  Date: 2002/03/27 16:27:00 EST
2071  Tag: blume-20020327-mlrisc-divisions  Tag: blume-20020327-mlrisc-divisions

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