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

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Revision 2603 - (view) (download)

1 : blume 2237 This is the HISTORY file for the SML/NJ repository.
2 : dbm 570
3 :     An entry should be made for _every_ commit to the repository.
4 :     The entries in this file will be used when creating the README
5 :     for new versions, so keep that in mind when writing the
6 :     description.
7 :    
8 :     The form of an entry should be:
9 :    
10 : mblume 1931
11 :     Name: Your Name (web page or e-mail)
12 : blume 2155 Date: yyyy/mm/dd hh:mm:ss
13 : mblume 1931 Tag: cvs-tag-for-this-change
14 : mblume 1480 Description:
15 :    
16 :     ----------------------------------------------------------------------
17 : dbm 2603 Name: David MacQueen (dbm@cs.uchicago.edu)
18 :     Date: 2007/5/23 17:23:00 CDT
19 :     Revision: 2603
20 :     Description:
21 :    
22 :     2nd merge of base from primop-branch-3 into the trunk.
23 :     Additional bug fixes included:
24 :     Date.scan and Date.fromString fixed;
25 :     Overloading resolution fixed and some type printing problems corrected.
26 :    
27 :     ----------------------------------------------------------------------
28 : blume 2578 Name: Matthias Blume (http://www.tti-c.org/blume/)
29 : blume 2589 Date: 2007/05/23 09:50:00 CDT
30 :     Description:
31 :    
32 :     Changed the installation mechanism for CM tool plugins. These are
33 :     just libaries and now get installed like ordinary libaries.
34 :    
35 :     There are now a number of new installation targets that give some
36 :     fine-grain control over what classes and suffixes are known, and what
37 :     they will map to.
38 :     See config/targets for details.
39 :    
40 :     The code that caused plugin installation as part of running a
41 :     tool's "build" script has been removed. (The build script is for
42 :     building, not for installing.)
43 :    
44 :     ----------------------------------------------------------------------
45 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
46 : blume 2578 Date: 2007/05/22 11:50:00 CDT
47 :     Description:
48 :    
49 :     Added a boolean control named cm.tolerate-tool-failures (env. variable
50 :     name: CM_TOLERATE_TOOL_FAILURES). The default is false and makes
51 :     CM fail if a shell tool reports a non-success exit status. If
52 :     the control is set to true, then CM will press on after tool failures
53 :     in the event that the target files exist (even though they are
54 :     considered outdated). Turning the control to true can be useful for
55 :     bootstrapping.
56 :    
57 :     ----------------------------------------------------------------------
58 : adrassi 2570 Name: Aaron Turon (http://www.cs.uchicago.edu/~adrassi)
59 :     Date: 2007/05/19
60 :     Description:
61 :    
62 :     Merge of ml-lpt revisions for 110.64.
63 :    
64 :     The name of several ml-lpt-lib modules has changed:
65 :     Repair => AntlrRepair
66 :     StreamPos => AntlrStreamPos
67 :     ErrHandlerFn => AntlrErrHandler
68 :     EBNF => AntlrEBNF
69 :    
70 :     The ml-antlr specification format has changed: declarations such as
71 :     %tokens and nonterminal definitions can occur *multiple* times in the
72 :     same specification. The semantics are such that each new declaration
73 :     extends the previous ones. This does not apply to %start or %name,
74 :     of course.
75 :    
76 :     Importing a grammar via %import now includes *all* declarations in from
77 :     the imported grammar, except for %name, %entry, and %start. Tokens
78 :     and nonterminals can be dropped using the new %dropping clause of the
79 :     %import directive; the separate %drop and %extend have been removed.
80 :    
81 :     We now allow optional type annotations on nonterminals, using the %nonterms
82 :     directive as in ml-yacc.
83 :    
84 :     The refcell construct is now implemented using SML's regular reference
85 :     cells, so the :== and !! notation has been deprecated.
86 :    
87 :     The ml-antlr tool now does much more checking of specifications, and
88 :     its error messages have been greatly improved. Error repair for
89 :     generated parsers has been completely rewritten, and is now both
90 :     much faster and more accurate.
91 :    
92 :     ml-ulex is now more lenient with escape codes (non-SML-standard
93 :     escape codes are now interpreted literally, so e.g. \| denotes "|").
94 :     Also, character classes may now include a "-" character at the beginning
95 :     as is standard in most other regexp tools.
96 :    
97 :     All of these changes are documented in the user guide, which has
98 :     been updated and improved with this merge.
99 :    
100 :     ----------------------------------------------------------------------
101 : dbm 2492 Name: David MacQueen (http://www.cs.uchicago.edu/~jhr)
102 :     Date: 2007/05/03
103 :     Revision: r2492
104 :     Description:
105 :    
106 :     Merge of the primop3 branch (base) into the trunk to create 110.63.1.
107 :     Significant changes in FLINT and the front end, mostly having to do
108 :     with a reorganized system for handling primops. Various bug fixes
109 :     and improvements in printing signatures.
110 :    
111 :     ----------------------------------------------------------------------
112 : adrassi 2551 Name: Aaron Turon (http://www.cs.uchicago.edu/~adrassi)
113 :     Date: 2007/05/02
114 :     Description:
115 :    
116 :     Preliminary commit of large ml-lpt revisions (more to come for 110.64).
117 :     The ml-antlr specification format has changed: declarations such as
118 :     %tokens and nonterminal definitions can occur *multiple* times in the
119 :     same specification. The semantics are such that each new declaration
120 :     extends the previous ones. Grammar extension constructs have also
121 :     changed. We now allow type annotations on nonterminals. Finally,
122 :     the refcell construct is now implemented using SML's regular reference
123 :     cells, so the :== and !! notation has been deprecated. All of these
124 :     changes will appear in the 110.64 user guide for ml-lpt.
125 :    
126 :     The ml-antlr tool now does much more checking of specifications, and
127 :     its error messages have been greatly improved. There has also been
128 :     some work on the error repair process for generated parsers, but this
129 :     will be further improved in 110.64.
130 :    
131 :     ----------------------------------------------------------------------
132 : dbm 2603 Name: David MacQueen (http://www.cs.uchicago.edu/~jhr)
133 :     Date: 2007/05/03
134 :     Revision: r2492
135 :     Description:
136 :    
137 :     Merge of the primop3 branch (base) into the trunk to create 110.63.1.
138 :     Significant changes in FLINT and the front end, mostly having to do
139 :     with a reorganized system for handling primops. Various bug fixes
140 :     and improvements in printing signatures.
141 :    
142 :     ----------------------------------------------------------------------
143 :     Name: Aaron Turon (http://www.cs.uchicago.edu/~adrassi)
144 :     Date: 2007/05/02
145 :     Description:
146 :    
147 :     Preliminary commit of large ml-lpt revisions (more to come for 110.64).
148 :     The ml-antlr specification format has changed: declarations such as
149 :     %tokens and nonterminal definitions can occur *multiple* times in the
150 :     same specification. The semantics are such that each new declaration
151 :     extends the previous ones. Grammar extension constructs have also
152 :     changed. We now allow type annotations on nonterminals. Finally,
153 :     the refcell construct is now implemented using SML's regular reference
154 :     cells, so the :== and !! notation has been deprecated. All of these
155 :     changes will appear in the 110.64 user guide for ml-lpt.
156 :    
157 :     The ml-antlr tool now does much more checking of specifications, and
158 :     its error messages have been greatly improved. There has also been
159 :     some work on the error repair process for generated parsers, but this
160 :     will be further improved in 110.64.
161 :    
162 :     ----------------------------------------------------------------------
163 : jhr 2444 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
164 : jhr 2450 Date: 2007/04/24
165 :     Description:
166 :    
167 :     More Basis fixes: The Char.fromString (etc.) functions did not handle
168 :     the "\uxxxx" escape sequence. There is still an outstanding bug with
169 :     String.fromString the tail is a format escape. I added a comment to
170 :     this effect in Basis/Implementation/string.sml.
171 :     Thanks to Andreas Rossberg.
172 :    
173 :     ----------------------------------------------------------------------
174 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
175 :     Date: 2007/04/24
176 :     Description:
177 :    
178 :     Added next function to Fifo and Queue modules in the SML/NJ Library.
179 :    
180 :     ----------------------------------------------------------------------
181 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
182 : jhr 2444 Date: 2007/04/23
183 :     Description:
184 :    
185 : jhr 2445 More Basis fixes: Time.fmt dropped the leading "~" for negative time
186 :     values that had no whole part.
187 :    
188 :     ----------------------------------------------------------------------
189 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
190 :     Date: 2007/04/23
191 :     Description:
192 :    
193 : jhr 2444 More Basis fixes: the OS.Path module did not include the InvalidArc
194 :     exception and did not do sufficient argument checking.
195 : jhr 2450 Thanks to Stephen Weeks and Adam Chilpala.
196 : jhr 2444
197 :     ----------------------------------------------------------------------
198 : mrainey 2406 Name: Mike Rainey (http://www.cs.uchicago.edu/~mrainey)
199 : mrainey 2410 Date: 2007/04/16
200 :     Description:
201 :    
202 :     Fixed an unbound functor bug in the AMD64 CM file.
203 :    
204 :     ----------------------------------------------------------------------
205 :     Name: Mike Rainey (http://www.cs.uchicago.edu/~mrainey)
206 : mrainey 2406 Date: 2007/04/12
207 :     Description:
208 :    
209 :     Substantially changed the signature and implementation of AMD64
210 :     SVID. It now looks similar to the ia32 SVID, yet uses staged
211 :     allocation.
212 :    
213 :     ----------------------------------------------------------------------
214 : jhr 2387 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
215 :     Date: 2007/04/07
216 :     Description:
217 :    
218 :     More Basis fixes: the WORD signature was missing {to,from}Large.
219 :     Thanks to Andreas Rossberg.
220 :    
221 :     ----------------------------------------------------------------------
222 : blume 2368 Name: Matthias Blume (http://www.tti-c.org/blume/)
223 :     Date: 2007/03/22 16:07:00 CDT
224 :     Tag: release-110.63
225 :     Description:
226 :    
227 :     Bumped version number to 110.63.
228 :    
229 :     !!!NEW BOOTFILES!!!
230 :    
231 :     ----------------------------------------------------------------------
232 : mrainey 2360 Name: Mike Rainey (http://www.cs.uchicago.edu/~mrainey)
233 :     Date: 2007/03/19
234 :     Description:
235 :    
236 :     Fixed bogus operand sizes in AMD64 instruction spilling.
237 :    
238 :     ----------------------------------------------------------------------
239 : jhr 2358 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
240 :     Date: 2007/03/19
241 :     Description:
242 :    
243 :     Fixed a number of inconsistencies between the Posix.TTY structure
244 :     and the Basis specification. Thanks to Adam Chilpala.
245 :    
246 :     ----------------------------------------------------------------------
247 : mrainey 2345 Name: Mike Rainey (http://www.cs.uchicago.edu/~mrainey)
248 :     Date: 2007/02/26
249 :     Description:
250 :    
251 :     Added preliminary support in MLRISC for Staged Allocation, a technique
252 :     for specifying calling conventions (see
253 :     http://www.eecs.harvard.edu/~nr/pubs/staged-abstract.html).
254 :     Initially, we plan to use this code to generate C calls for the AMD64.
255 :    
256 :     The staged allocation code base resides in MLRISC/staged-allocation,
257 :     and specialized calling conventions go in MLRISC/ARCH/staged-allocation.
258 :    
259 :     ----------------------------------------------------------------------
260 : jhr 2342 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
261 :     Date: 2007/02/20
262 :     Description:
263 :    
264 :     Bug fix: when SaveCState was called with two values to save, a subsequent
265 :     GC could cause the RestoreCState to fail because the saved state had been
266 :     promoted to tagless pair.
267 :    
268 :     ----------------------------------------------------------------------
269 : leunga 2340 Name: Allen Leung (leunga (at) reservoir (dot) com)
270 :     Date: 2007/02/20 19:08:00 EST
271 :     Description:
272 :    
273 :     Bug triggered by:
274 :    
275 :     val a1 = Word8Array.array(a1, 0w0);
276 :     val _ = Word8Array.update(a1, 0, 0w128);
277 :    
278 :     x86MCEmitter crashed when the immediate operand to MOVB was outside
279 :     of the range -128 ... 127. I've changed the code so that the range
280 :     check is disabled. Only the low order 8 bits of the immediate operand
281 : jhr 2342 are now significant.
282 : leunga 2340
283 :    
284 :     ----------------------------------------------------------------------
285 : blume 2304 Name: Matthias Blume (http://www.tti-c.org/blume/)
286 : blume 2336 Date: 2007/02/15 09:20:00 CST
287 :     Description:
288 :    
289 :     Eliminated any mention of lexgen. (Lexgen was an early precursor
290 :     to ml-ulex.)
291 :    
292 :     You should update your admin directory, so the shell scripts for
293 :     maintaining your local copy of the repository reflect this change.
294 :    
295 :     ----------------------------------------------------------------------
296 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
297 : blume 2333 Date: 2007/02/14 15:45:00 CST
298 :     Description:
299 :    
300 :     Fixed bug in CM's parallel make facility that failed to have
301 :     the master re-link modules after letting slaves compile them.
302 :    
303 :     ----------------------------------------------------------------------
304 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
305 : blume 2331 Date: 2007/02/12 15:10:00 CST
306 :     Description:
307 :    
308 :     Fixed typo in ml-build script that prevented library anchors
309 :     from being registered.
310 :    
311 :     ----------------------------------------------------------------------
312 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
313 : blume 2304 Date: 2007/02/02 15:20:00 CST
314 :     Tag: release-110.62
315 :     Description:
316 :    
317 :     New working release (110.62). NEW BOOTFILES!
318 :    
319 :     ----------------------------------------------------------------------
320 : adrassi 2296 Name: Aaron Turon (http://www.cs.uchicago.edu/~adrassi)
321 :     Date: 2007/01/31
322 :     Description:
323 :    
324 :     Brought ml-lpt manual up-to-date with the code. Many minor
325 :     improvements to the tools, and a few minor bugfixes. Prepared
326 :     ml-lpt-lib for integration with new UTF8 structure. Changed
327 :     the interface for creating streams in ml-ulex (we now support
328 :     stream creation from several kinds of sources). Overall, the
329 :     tools are now quite stable, and their interfaces are unlikely to
330 :     change in a way that would break compatibility. More work,
331 :     however, is needed in the documentation.
332 :    
333 :     ----------------------------------------------------------------------
334 : blume 2277 Name: Matthias Blume (http://www.tti-c.org/blume/)
335 : blume 2298 Date: 2007/02/01 10:05:00 CST
336 :     Description:
337 :    
338 :     Implemented library installer. Moved CM plugin code for
339 :     ml-burg, ml-lex, and ml-yacc out of CM source tree and into
340 :     their respective trees. Implemented CM plugin for ml-ulex
341 :     and ml-antlr. Used library installer for ml-burg, ml-ulex,
342 :     and ml-antlr.
343 :    
344 :     For ml-yacc and ml-lex we continue to have permanently "plugged-in"
345 :     CM tools. (It turns out to be too messy to do otherwise because
346 :     there is too much code that during installation relies on the presence
347 :     of these tools -- resulting in a tricky ordering problem.)
348 :    
349 :     ----------------------------------------------------------------------
350 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
351 : blume 2277 Date: 2007/01/30 11:05:00 CST
352 :     Description:
353 :    
354 :     Added SMLofNJ.shiftArgs which is like a shell's "shift" command.
355 :     Modified CM's startup code to use shiftArgs as it processes
356 :     command line arguments. This way, the init code in each .sml-file
357 :     or library that is mentioned at the top level will see only
358 :     those arguments that have not yet been processed at this point.
359 :     In other words, the init code can "seize control" and process the
360 :     remaining command line.
361 :    
362 :     ----------------------------------------------------------------------
363 : jhr 2269 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
364 : jhr 2358 Date: 2007/01/30
365 :     Description:
366 :    
367 :     Added fromList function to the ORD_SET interface and lookup to the
368 :     ORD_MAP interface. See the SML/NJ Library CHANGES file for details.
369 :    
370 :     ----------------------------------------------------------------------
371 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
372 : jhr 2269 Date: 2007/01/28
373 :     Description:
374 :    
375 :     Added the UTF8 structure and signature from the Moby compiler to
376 :     the SML/NJ library (and the CML library). These modules will replace
377 :     the version in the ml-lpt-lib.
378 :    
379 :     ----------------------------------------------------------------------
380 : blume 2237 Name: Matthias Blume (http://www.tti-c.org/blume/)
381 : blume 2267 Date: 2007/01/26 15:10:00 CST
382 :     Description:
383 :    
384 :     Added entries to handle ml-lpt-lib.cm in installer.
385 :    
386 :     ----------------------------------------------------------------------
387 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
388 : blume 2259 Date: 2006/12/15 11:10:00 CST
389 : blume 2237 Tag: release-110.61
390 :     Description:
391 :    
392 :     New working release (110.61). NEW BOOTFILES!
393 :    
394 : blume 2259 This supersedes the pre-brown-paper-bug release (see below).
395 :    
396 : blume 2237 ----------------------------------------------------------------------
397 : blume 2259 Name: Matthias Blume (http://www.tti-c.org/blume/)
398 :     Date: 2006/12/15 11:00:00 CST
399 :     Description:
400 :    
401 :     Fixed brown-paper-bag bug with CM's pathname handling, which made
402 :     installation fail under Win32.
403 :    
404 :     ----------------------------------------------------------------------
405 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
406 :     Date: 2006/12/14 12:00:00 CST
407 :     Description:
408 :    
409 :     Obsolete!
410 :    
411 :     [New working release (110.61). NEW BOOTFILES!]
412 :    
413 :     ----------------------------------------------------------------------
414 : jhr 2234 Name: John Reppy (http://cs.uchicago.edu/~jhr)
415 :     Date: 2006/14/06 09:50:00 CST
416 :     Description:
417 :    
418 :     Fixed the code in runtime/c-libs/posix-tty/{tcgetattr,tcsetattr}.c to
419 :     get the c_cc termios data copied correctly. Also moved the allocation
420 :     of the string to avoid problems if it caused a GC.
421 :    
422 :     Thanks to Timothy Bourke for the bug report and fix.
423 :    
424 :     ----------------------------------------------------------------------
425 : blume 2232 Name: Matthias Blume (http://www.tti-c.org/blume)
426 :     Date: 2006/12/08 09:50:00 CST
427 :     Description:
428 :    
429 :     Added code to CM's "standard shell tool" implementation which
430 :     causes it to tolerate (with a warning) the situation where the shell
431 :     command fails (e.g., due to the shell command's non-existence)
432 :     as long as all target files exist.
433 :    
434 :     This makes it possible to, e.g., build ml-yacc from sources even if
435 :     svn checkout messed up the time stamps on files in such a way that
436 :     yacc.grm is younger than yacc.grm.sml or yacc.grm.sig. (Ml-yacc would
437 :     be needed to re-process yacc.grm, but obviously it might not yet be
438 :     available at that time.)
439 :    
440 :     ----------------------------------------------------------------------
441 : jhr 2228 Name: John Reppy (http://cs.uchicago.edu/~jhr)
442 :     Date: 2006/12/06 12:06:00 CST
443 :     Description:
444 :    
445 :     Fixed the types of recvVecFrom, recvVecFrom', recvVecFromNB, and
446 :     recvVecFromNB' in the SOCKET signature. This error is actually
447 :     in the SML Basis specification too.
448 :    
449 :     ----------------------------------------------------------------------
450 : mblume 1923 Name: Matthias Blume (http://www.tti-c.org/blume/)
451 : blume 2226 Date: 2006/12/05 22:40:00 CST
452 :     Description:
453 :    
454 :     CM now reports undefined anchors as errors and aborts execution
455 :     rather than silently pressing on using bogus values.
456 :    
457 :     ----------------------------------------------------------------------
458 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
459 : blume 2224 Date: 2006/11/29 10:00:00 CST
460 :     Description:
461 :    
462 :     Use Say.vsay for printing the "[autoloading]" message, so
463 :     #set CM.Control.verbose false (or -Ccm.verbose=false) can be used
464 :     to suppress them.
465 :    
466 :     ----------------------------------------------------------------------
467 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
468 : blume 2219 Date: 2006/11/10 11:00:00 CST
469 :     Description:
470 :    
471 :     Fixed bug in CM where "with:" specifications that affect compilation
472 :     (as opposed to parsing) were ignored.
473 :    
474 :     ----------------------------------------------------------------------
475 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
476 : blume 2193 Date: 2006/11/09 14:30:00 CST
477 :     Tag: release-110.60
478 :     Description:
479 :    
480 :     New working release (110.60). NEW BOOTFILES!
481 :    
482 :     This is the first subversion-hosted release. There are also changes
483 :     to the directory layout. Here is a table:
484 :    
485 :     (All pathnames are relative to the SML/NJ "root" directory.)
486 :    
487 :     config -> config
488 :    
489 :     src/cm -> base/cm
490 :     src/compiler -> base/compiler
491 :     src/runtime -> base/runtime
492 :     src/system -> base/system
493 :    
494 :     src/cm/pgraph -> pgraph
495 :    
496 :     src/READMES -> base/READMES
497 :     src/$notefile -> base/NOTES/$notefile
498 :     for <notefile> in BOOT CVSNOTES CYGWININSTALL HISTORY INSTALL
499 :     MACOSXINSTALL WININSTALL
500 :    
501 :     src/smlnj-lib -> smlnj-lib
502 :     src/MLRISC -> MLRISC
503 :     ckit -> ckit
504 :     src/cml -> cml
505 :     src/eXene -> eXene
506 :     src/heap2asm -> heap2asm
507 :     src/lexgen -> lexgen
508 :     src/ml-burg -> ml-burg
509 :     src/ml-lex -> ml-lex
510 :     src/ml-yacc -> ml-yacc
511 :     src/ml-nlffi-lib -> nlffi/lib
512 :     src/ml-nlffigen -> nlffi/gen
513 :     src/smlnj-c -> smlnj-c
514 :     src/tools/TraceDebugProf -> trace-debug-profile
515 :    
516 :     In addition, there is also a new
517 :    
518 :     ml-lpt
519 :    
520 :     directory containing two new program generator tools: ml-ulex and
521 :     ml-antlr (a lexer generator that handles unicode and an ANTRL-inspired
522 :     LL(k) parser generator). These tools are currently "beta-quality"
523 :    
524 :     The latest versios of the sources can now be obtained anonymously
525 :     via subversion. For this, it is useful to first check out
526 :    
527 :     svn://smlnj-gforge.cs.uchicago.edu/smlnj/admin
528 :    
529 :     and put the resulting directory on your shell's PATH. This provides
530 :     access to three shell scripts: checkout-all.sh, stat-all.sh,
531 :     and refresh-all.sh.
532 :    
533 :     To create a freshly checked-out copy of the sources, do
534 :    
535 :     checkout-all.sh [dir]
536 :    
537 :     where dir is the optional SML/NJ root directory (default is ".").
538 :    
539 :     This creates the above directory layout. Each subdirectory of
540 :     the root is under individual subversion control. The stat-all.sh
541 :     and refresh-al.sh scripts apply "svn stat" or "svn update" to
542 :     each of these subtrees.
543 :    
544 :     ----------------------------------------------------------------------
545 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
546 : blume 2155 Date: 2006/11/02 12:20:00 CST
547 :     Description:
548 :    
549 :     Reorganized directory layout.
550 :    
551 :     This is a temporary solution, more reorganization is to come.
552 :    
553 :     The basic idea is to have a number of toplevel trees, each corresponding
554 :     to a well-defined part of the overall system. Each part can be
555 :     maintained individually, even in separate source repositories,
556 :     although currently we still serve everything out of the main
557 :     smlnj-gforge tree.
558 :    
559 :     Installer and and scripts have been updated to reflect the new
560 :     layout. The installer (base/src/system/smlnj/installer) is now
561 :     "scriptable" to avoid burning too much knowledge about the
562 :     layout into SML source code. The main script used by the installer
563 :     is in config/actions.
564 :    
565 :     The main change is that many of the subdirectories of what used to
566 :     be known as "src" have moved to the toplevel. The "src" directory
567 :     itself has moved down into a subtree called "base". (We may eventually
568 :     get rid of the extra level of indirection represented by "src".)
569 :    
570 :     The layout is now as follows:
571 :    
572 :     toplevel tree name | default repository
573 :     | (using gf=svn://smlnj-gforge.cs.uchicago.edu/smlnj)
574 :     -------------------+----------------------------------------------------
575 :     config | $gf/config/trunk
576 :     |
577 :     base | $gf/sml/trunk
578 :     |
579 :     smlnj-lib | $gf/smlnj-lib/trunk
580 :     MLRISC | $gf/MLRISC/trunk
581 :     |
582 :     ml-yacc | $gf/ml-yacc/trunk
583 :     ml-lex | $gf/ml-lex/trunk
584 :     ml-burg | $gf/ml-burg/trunk
585 :     lexgen | $gf/lexgen/trunk
586 :     heap2asm | $gf/heap2asm/trunk
587 :     |
588 :     cml | $gf/cml/trunk
589 :     eXene | $gf/eXene/trunk
590 :     ckit | $gf/ckit/trunk
591 :     nlffi | $gf/nlffi/trunk
592 :     |
593 :     smlnj-c | $gf/smlnj-c/trunk
594 :    
595 :     In $gf/admin there are a few useful shell scripts for checking out
596 :     and maintaining the entire collection of trees:
597 :    
598 :     admin/checkout-all.sh [dir]
599 :     -- optionally creates dir and checks out all trees from their
600 :     default repositories; if dir is missing, checkout into .
601 :     admin/refresh-all.sh [dir]
602 :     -- looks at all trees (from the above list) in dir (default: .)
603 :     and runs "svn update" if the tree exists and is under
604 :     subversion control;
605 :     non-existing or non-subversion trees are skipped
606 :     admin/stat-all.sh [dir]
607 :     -- like refresh-all.sh, but runs "svn stat" instead
608 :    
609 :     ----------------------------------------------------------------------
610 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
611 :     Date: 2006/10/05 11:30:00 CDT
612 : mblume 2066 Tag: blume-20061005-merge-amd64
613 :     Description:
614 :    
615 :     Merged code for AMD64 backend (Mike Rainey's work).
616 :     Everything is hooked up but untested.
617 :    
618 :     ----------------------------------------------------------------------
619 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
620 : mblume 1931 Date: 2006/05/17 14:00:00 CST
621 :     Tag: Release_110_59
622 :     Description:
623 :    
624 : blume 2193 New working version (110.59). NEW BOOTFILES!
625 : mblume 1931
626 :     I am freezing 110.59. Changes other than the version-number increase:
627 :    
628 :     eXene:
629 :    
630 :     * committed changes to eXene from Alley Stoughton:
631 :     "fixed bugs in X authorization and resource handling, as well
632 :     as in the pile and viewport widgets"
633 :    
634 :     Runtime:
635 :     * fixed linking problem with NetBSD 3.x.
636 :    
637 :     Lexgen:
638 :     * lexgen tool handles non-ascii characters in 7-bit mode the same
639 :     way that ml-lex does
640 :    
641 :     * lexgen propagates exceptions the same way that ml-lex does
642 :    
643 :     CML:
644 :     * Fixed a bug in the SyncVar polling functions (iGetPoll,
645 :     mTakePoll, and mGetPoll) that could lead to livelock.
646 :    
647 :     ----------------------------------------------------------------------
648 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
649 : mblume 1926 Date: 2006/05/12 15:20:00 CST
650 :     Tag: blume-20060515-makedepend
651 :     Description:
652 :    
653 :     Implemented ml-makedepend (i.e., CM.sources) in a better (more robust)
654 :     way. This should hopefully fix the ml-makedepend problem permanently.
655 :    
656 :     ----------------------------------------------------------------------
657 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
658 : mblume 1925 Date: 2006/05/12 15:15:00 CST
659 :     Tag: blume-20060512-makedepend
660 :     Description:
661 :    
662 :     Fixed long-standing bug with ml-makedepend where it would output a
663 :     spurious dependency to a non-existing file. (This is a simple fix.
664 :     It might need further looking into.)
665 :    
666 :     ----------------------------------------------------------------------
667 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
668 : mblume 1923 Date: 2006/04/20 10:30:00 CDT
669 :     Tag: blume-20060420-heap2exec
670 :     Description:
671 :    
672 :     Committed patches received from Johannes 5 Joemann (joemann@befree.free.de)
673 :     that enable heap2exec under Linux and FreeBSD.
674 :    
675 :     ----------------------------------------------------------------------
676 : jhr 1921 Name: John Reppy
677 :     Date: 2006/04/14
678 : blume 2155 Tag:
679 : jhr 1921 Description:
680 :    
681 :     MLRISC changes:
682 :     1) renamed GAS_PSEUDO_OPS to AS_PSEUDO_OPS and put it in its own file.
683 :     2) added support for NOTB and XORB operators in pseudo-op expressions
684 :     3) added DarwinPseudoOp functor that supports Darwin's assembler syntax.
685 :     4) added support for 64-bit integer literals
686 :    
687 :     ----------------------------------------------------------------------
688 : jhr 1922 Name: Matthias Blume (http://www.tti-c.org/blume/)
689 : mblume 1907 Date: yyyy/mm/dd
690 :     Tag: Release_110_58
691 :     Description:
692 :    
693 :     New working version (110.58). NEW BOOTFILES!
694 :    
695 :     ----------------------------------------------------------------------
696 : mblume 1896 Name: Matthias Blume (http://www.tti-c.org/blume/)
697 : mblume 1905 Date: 2006/03/01 22:15:00 CST
698 :     Tag: blume-20060301-lexgen
699 :     Description:
700 :    
701 :     Incorporated several bugfixes to lexgen. Compiler now compiles to
702 :     fixpoint when using lexgen instead of ml-lex.
703 :    
704 :     ----------------------------------------------------------------------
705 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
706 : mblume 1902 Date: 2006/02/28 22:45:00 CST
707 :     Tag: blume-20060228-lexgen
708 :     Description:
709 :    
710 :     Removed ml-flex and added lexgen instead, using Aaron Turon's newly
711 :     provided tarball. The generated lexers still have problems.
712 :    
713 :     ----------------------------------------------------------------------
714 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
715 : mblume 1898 Date: 2006/02/26 23:30:00 CST
716 :     Tag: blume-20060226-ml-flex
717 :     Description:
718 :    
719 :     Removed ml-flex' dependency on regexp-lib.cm. Turned installation
720 :     of ml-flex on by default.
721 :    
722 :     ----------------------------------------------------------------------
723 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
724 : mblume 1896 Date: 2006/02/24 16:30:00 CST
725 :     Tag: blume-20060224-ml-flex
726 :     Description:
727 :    
728 :     Added ml-flex sources. Partially integrated, but should not be
729 :     turned on yet! (Read: leave it commented-out in config/targets!)
730 :    
731 :     ----------------------------------------------------------------------
732 : jhr 1893 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
733 :     Date: 2006/02/23
734 :     Tag: jhr-20060223-x86-64
735 :     Description:
736 :     Changes to support building on x86-64 systems (using the 32-bit mode).
737 :     Also cleaned up signal handling on Linux. Support for pre-2.2 Linux
738 :     kernels dropped.
739 :    
740 :     ----------------------------------------------------------------------
741 : allenleung 1890 Name: Allen Leung (leunga (at) reservoir (dot) com)
742 :     Date: 2006/02/22 15:07:00 EST
743 :     Tag: leunga-20060222-mdl-gen
744 :     Description:
745 :    
746 :     CM has changed. Updated the script for rebuilding the MLRISC generated
747 :     files.
748 :    
749 :     ----------------------------------------------------------------------
750 : mblume 1886 Name: Matthias Blume (http://www.tti-c.org/blume/)
751 :     Date: 2006/02/14 17:30:00 CST
752 :     Tag: blume-20060214-intel-mac
753 :     Description:
754 :    
755 :     Hooked code for Darwin-specific Intel ABI into main compiler.
756 :     (This is a temporary solution which relies on the fact that the
757 :     compiler itself does not use NLFFI. Eventually we need to divorce
758 :     intel mac from generic x86 unix code and make separate sets of binaries.)
759 :    
760 :     ----------------------------------------------------------------------
761 : jhr 1882 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
762 : jhr 1885 Date: 2006/02/13
763 :     Tag: jhr-20060213-intel-mac
764 :     Description:
765 :     Changed MLRISC x86 CCalls for partial support of MacOS X ABI.
766 :    
767 :     ----------------------------------------------------------------------
768 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
769 : jhr 1882 Date: 2006/02/06
770 :     Tag: jhr-20060206-intel-mac
771 :     Description:
772 :     Changes to support MacOS X on Intel hardware. The C-calls support in
773 :     MLRISC must also be updated to support the MacOS X ABI.
774 :    
775 :     ----------------------------------------------------------------------
776 : mblume 1863 Name: Matthias Blume (http://www.tti-c.org/blume/)
777 : mblume 1879 Date: 2005/12/16 00:15:00 CST
778 :     Tag: blume-20051216-cm
779 :     Description:
780 :    
781 :     Improved error reporting and handling in CM.
782 :    
783 :     ----------------------------------------------------------------------
784 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
785 : mblume 1878 Date: 2005/11/21 14:00:00 CST
786 :     Tag: blume-20051121-html-lib
787 :     Description:
788 :    
789 :     Enabling $/html-lib.cm in config/preloads did not work. This is fixed
790 :     now. (Since the anchor mapping for html-lib.cm is not yet in effect
791 : blume 2155 at the time when config/preloads is processed, the library has to
792 : mblume 1878 be referred to by another name. In 110.57 this would be
793 :     $SMLNJ-LIB/HTML/html-lib.cm. I arranged for $smlnj/smlnj-lib/html-lib.cm
794 :     to be valid as well.)
795 :    
796 :     Thanks to Todd Wilson (Fresno) for alerting me to this issue.
797 :    
798 :     ----------------------------------------------------------------------
799 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
800 : mblume 1874 Date: 2005/11/19 13:45:00 CST
801 :     Tag: Release_110_57
802 :     Description:
803 :    
804 :     Moved release tag for 110.57.
805 :    
806 :     ----------------------------------------------------------------------
807 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
808 : mblume 1873 Date: 2005/11/19 23:35:00 CST
809 :     Tag: blume-20051119-fish
810 :     Description:
811 :    
812 :     Fixed a problem in config/install.sh where it tries to "fish" the
813 :     name of the CM metadata directory from the wrong place (because
814 :     the physical location of basis.cm has changed). Also, corrected the
815 :     path anchor for $/html-lib.cm. (Thanks to M. Fluet for pointing out
816 :     these problems.)
817 :    
818 :     ----------------------------------------------------------------------
819 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
820 : mblume 1867 Date: 2005/11/16 14:30:00 CST
821 : mblume 1874 Tag: blume-orig-110_57
822 : mblume 1867 Description:
823 :    
824 :     New working version (110.57). NEW BOOTFILES!
825 :    
826 : mblume 1874 UPDATE: The release tag has been moved to include a fix for a brown-paper-
827 :     bag glitch (see above).
828 :    
829 : mblume 1867 ----------------------------------------------------------------------
830 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
831 : mblume 1866 Date: 2005/11/16 10:25:00 CST
832 :     Tag: blume-22051116-btrace
833 :     Description:
834 :    
835 :     Fixed problem with bogus exception message when using back-trace
836 :     facility.
837 :    
838 :     ----------------------------------------------------------------------
839 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
840 : mblume 1865 Date: 2005/11/15 22:35:00 CST
841 :     Tag: blume-22051115-array2copy
842 :     Description:
843 :    
844 :     Added simple implementation of Array2.copy. (Warning: mostly untested.)
845 :    
846 :     ----------------------------------------------------------------------
847 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
848 : mblume 1864 Date: 2005/11/15 21:35:00 CST
849 :     Tag: blume-22051115-versiontool
850 :     Description:
851 :    
852 :     Reversed change to src/system/smlnj/internals/versiontool.cm. This
853 :     file gets loaded as a tool -- by the equivalent of CM.make during the
854 :     run of CMB.make. Thus, CMB's path configuration is meaningless for
855 :     it. Instead, it has the status of "user code", so it should use
856 :     $/basis.cm to refer to the Basis library. (At least that's true for
857 :     the purpose of bootstrapping the previous change. In the future it
858 :     might make sense to have versiontool.cm refer to
859 :     $smlnj/basis/basis.cm, i.e., the version of the Basis that the
860 :     compiler itself uses.)
861 :    
862 :     Also patched src/system/testml to have it activate those extra anchor
863 :     bindings in config/extrapathconfig.
864 :    
865 :     ----------------------------------------------------------------------
866 :     Name: Matthias Blume (http://www.tti-c.org/blume/)
867 : mblume 1863 Date: 2005/11/15 16:35:00 CST
868 :     Tag: blume-22051115-libraries
869 :     Description:
870 :    
871 :     This change affects the way the following libraries are tied into
872 :     the system:
873 :    
874 :     $/basis.cm
875 :     $/smlnj-lib.cm
876 :     $/pp-lib.cm
877 :     $/controls-lib.cm
878 :     $/html-lib.cm
879 :     $/ml-yacc-lib.cm
880 :    
881 :     These libraries are now internally (as seen from the source code
882 :     of the implementation itself) known by the following names:
883 :    
884 :     $smlnj/basis/basis.cm
885 :     $smlnj/smlnj-lib/smlnj-lib.cm
886 :     $smlnj/smlnj-lib/pp-lib.cm
887 :     $smlnj/smlnj-lib/controls-lib.cm
888 :     $smlnj/smlnj-lib/html-lib.cm
889 :     $smlnj/ml-yacc/ml-yacc-lib.cm
890 :    
891 :     This makes it possible to work with code that requires different
892 :     versions of these libraries, and which refers to these libraries using
893 :     their "default" names (i.e., the first set of names above). In other
894 :     words, one can un-define or re-define those default names without
895 :     compromising the proper functioning of the compiler itself.
896 :    
897 :     A similar procedure had already been performed for several of the
898 :     MLRISC libraries that are linked into the compiler. I did some
899 :     cleanup on this code.
900 :    
901 :     A new file in the config directory (named extrapathconfig) is
902 :     responsible for setting up path anchors that the compiler itself does
903 :     not need, but that are typically required by user code.
904 :    
905 :     ----------------------------------------------------------------------
906 : mblume 1862 Name: Matthias Blume
907 :     Date: 2005/11/07 17:05:00 CST
908 :     Tag: blume-20051107-slice
909 :     Description:
910 :    
911 :     Fixed erroneous out-of-bounds test in the "update" function of
912 :     various *ArraySlice modules. (Thanks to Vesa A. Norrman for pointing
913 :     out the problem.)
914 :    
915 :     Pushed some Basis changes through ML-Lex, CML, and eXene.
916 :    
917 :     ----------------------------------------------------------------------
918 : jhr 1858 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
919 : jhr 1861 Date: 2005/11/07
920 :     Description:
921 :     Fixed a Basis incompatibility: The depreciated function Substring.all
922 :     was removed (use Substring.full instead).
923 :    
924 :     ----------------------------------------------------------------------
925 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
926 : jhr 1858 Date: 2005/11/05
927 :     Description:
928 :     Tweaked interval set API in SML/NJ library; see the CHANGES file for details.
929 :    
930 :     ----------------------------------------------------------------------
931 : mblume 1856 Name: Matthias Blume (http://www.tti-c.org/blume/)
932 :     Date: 2005/11/02 16:25:00 CST
933 :     Tag: blume-20051102-hex
934 :     Description:
935 :    
936 :     * Runtime system bootstrap code now accepts hex digits in BOOTLIST
937 :     in either upper case or lower case format.
938 :     * Pushed changes to names of Pack<N>{Big,Little} structures through
939 :     CML and eXene.
940 :    
941 :     ----------------------------------------------------------------------
942 : jhr 1852 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
943 : jhr 1855 Date: 2005/11/02
944 :     Description:
945 :     Fixed a Basis incompatibility: Pack<N>{Big,Little} structures should
946 :     be called PackWord<N>{Big,Little}.
947 :    
948 :     ----------------------------------------------------------------------
949 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
950 : jhr 1852 Date: 2005/10/28
951 :     Description:
952 :     Fixed a minor Basis incompatibility: hex digits should be upper case.
953 :    
954 :     ----------------------------------------------------------------------
955 : mblume 1846 Name: Matthias Blume (blume (at) tti - c (dot) org)
956 :     Date: 2005/10/25 16:00:00 CDT
957 :     Tag: Release_110_56
958 :     Description:
959 :    
960 :     New working version (110.56). NEW BOOTFILES!
961 :    
962 :     ----------------------------------------------------------------------
963 : jhr 1838 Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
964 : jhr 1840 Date: 2005/10/25
965 :     Description:
966 :     Added interval sets to utility library (signatures INTERVAL_DOMAIN
967 :     and INTERVAL_SET, and functor IntervalSetFn).
968 :    
969 :     ----------------------------------------------------------------------
970 :     Name: John Reppy (http://www.cs.uchicago.edu/~jhr)
971 : jhr 1838 Date: 2005/10/14
972 :     Description:
973 :     Add Zhong Shao's fix for datatype equality functions.
974 :    
975 :     ----------------------------------------------------------------------
976 : allenleung 1836 Name: Allen Leung (leunga (at) reservoir (dot) com)
977 : allenleung 1837 Date: 2005/10/14 12:30:00 EST
978 :     Tag: leunga-20051014-x86-spill
979 :     Description:
980 :    
981 :     Bug fix a bug found by Carl Hauser.
982 :     There was a typo in the reload code for FCMP in x86SpillInstr.sml.
983 :    
984 :     ----------------------------------------------------------------------
985 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
986 : allenleung 1836 Date: 2005/10/14 11:15:00 EST
987 :     Tag: leunga-20051014-x86-asm
988 :     Description:
989 :    
990 :     Removed some debugging code in file x86Asm.sml.
991 :     The function emit_operand was printing out debugging output.
992 :    
993 :     ----------------------------------------------------------------------
994 : jhr 1813 Name: John Reppy
995 : jhr 1831 Date: 2005/07/27
996 :     Tag:
997 :     Description:
998 :    
999 : jhr 1832 Fixed ml-lex to recognize "\r" as representing carriage return.
1000 :    
1001 :     ----------------------------------------------------------------------
1002 :     Name: John Reppy
1003 :     Date: 2005/07/27
1004 :     Tag:
1005 :     Description:
1006 :    
1007 : jhr 1831 Fixed ml-yacc to work on files with non-native end-of-line
1008 :     encodings (e.g., Windows text file on a Unix system).
1009 :    
1010 :     ----------------------------------------------------------------------
1011 :     Name: John Reppy
1012 : jhr 1824 Date: 2005/07/20
1013 :     Tag:
1014 :     Description:
1015 :    
1016 :     Added changes from Dominic Evans (oldmanuk (at) gmail (dot) com)
1017 :     to support HPUX 11.
1018 :    
1019 :     ----------------------------------------------------------------------
1020 :     Name: John Reppy
1021 : jhr 1813 Date: 2005/07/06
1022 :     Tag:
1023 :     Description:
1024 :    
1025 :     Changes to the SML/NJ library. See smlnj-lib/CHANGES for details.
1026 :    
1027 :     ----------------------------------------------------------------------
1028 : mblume 1808 Name: Matthias Blume (blume (at) tti - c (dot) org)
1029 :     Date: 2005/07/06 00:45:00 CDT
1030 :     Tag: blume-20050706-slice-copy
1031 :     Description:
1032 :    
1033 :     Fixed reversed logic for deciding whether to "copy up" or "copy down"
1034 :     in *-array-slice.sml.
1035 :    
1036 :     ----------------------------------------------------------------------
1037 : allenleung 1806 Name: Allen Leung (leunga (at) reservoir (dot) com)
1038 : allenleung 1807 Date: 2005/05/31 17:00:00 EST
1039 :     Tag: leunga-20050531-cygwin-fault-2
1040 :     Description:
1041 :    
1042 :     A typo in the cygwin code fixed.
1043 :    
1044 :     ----------------------------------------------------------------------
1045 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
1046 : allenleung 1806 Date: 2005/05/31 16:47:00 EST
1047 :     Tag: leunga-20050531-cygwin-fault
1048 :     Description:
1049 :    
1050 : blume 2155 Updated Cygwin's fault/signal handling to match the Windows version.
1051 : allenleung 1806 Updated the export list.
1052 :    
1053 :     ----------------------------------------------------------------------
1054 : mblume 1791 Name: Matthias Blume (blume (at) tti - c (dot) org)
1055 : mblume 1795 Date: 2005/05/18 13:35:00 CDT
1056 :     Tag: Release_110_54
1057 :     Description:
1058 :    
1059 :     New working version (110.54). NEW BOOTFILES!
1060 :    
1061 :     ----------------------------------------------------------------------
1062 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1063 : mblume 1794 Date: 2005/05/18 11:58:00 CDT
1064 :     Tag: blume-20050518-installer
1065 :     Description:
1066 :    
1067 :     Added support scripts for Mac OS X PackageMaker and modified
1068 :     config/install.sh so that it supports re-dumping a heap image
1069 :     after customization.
1070 :    
1071 :     ----------------------------------------------------------------------
1072 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1073 : mblume 1793 Date: 2005/05/18 10:55:00 CDT
1074 :     Tag: blume-20050518-realdiv-noovld
1075 :     Description:
1076 :    
1077 :     Un-overloaded / to work around bug in overloading resolution code.
1078 :    
1079 :     ----------------------------------------------------------------------
1080 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1081 : mblume 1792 Date: 2005/05/16 23:50:00 CDT
1082 :     Tag: blume-20050516-redump-heap
1083 :     Description:
1084 :    
1085 :     Added mechanism for re-creating a heap file for the interactive system
1086 :     after configuration variables have been changed.
1087 :    
1088 :     CM.redump_heap : string -> unit
1089 :    
1090 :     This is much like SMLofNJ.exportML, but starting from the resulting
1091 : blume 2155 heap does not return to the caller of CM.redump_heap but
1092 : mblume 1792 restarts the interactive system from scratch. The original call of
1093 :     CM.redump_heap does not return but ends the interactive session.
1094 :     Thus, CM.redump_heap is a lot like SMLofNJ.exportFn.
1095 :    
1096 :     Internally, redump_heap winds the dynamic execution context back to
1097 :     the point where the original heap image was created and re-executes
1098 :     the heap image generation code in the boot code.
1099 :    
1100 :     ----------------------------------------------------------------------
1101 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1102 : mblume 1791 Date: 2005/05/09 21:55:00 CDT
1103 :     Tag: blume-20050509-word64
1104 :     Description:
1105 :    
1106 :     Added a hack to the existing hack known as Word64 to make fromString
1107 :     behave correctly. I am still not sure whether Word64.scan will work
1108 :     as specified with respect to the interaction of radix and prefix.
1109 :    
1110 :     ----------------------------------------------------------------------
1111 : allenleung 1785 Name: Allen Leung (leunga (at) reservoir (dot) com)
1112 :     Date: 2005/05/04 11:50:00 EST
1113 :     Tag: leunga-20050504-checkgc
1114 :     Description:
1115 :    
1116 : blume 2155 Added a gc protocol checking phase. This phase is enabled with
1117 : allenleung 1785 the flag "check-gc". "debug-check-gc" turns on the verbose mode.
1118 :    
1119 :     ----------------------------------------------------------------------
1120 : mblume 1741 Name: Matthias Blume (blume (at) tti - c (dot) org)
1121 : mblume 1784 Date: 2005/05/04 10:45:00 CDT
1122 :     Tag: blume-20050504-intinf
1123 :     Description:
1124 :    
1125 :     Fixed a bug in the implementation of div and mod for IntInf.
1126 :     Thanks to Neophytos Michael for reporting the problem.
1127 :    
1128 :     ----------------------------------------------------------------------
1129 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1130 : mblume 1783 Date: 2005/05/04 10:35:00 CDT
1131 :     Tag: blume-20050504-join
1132 :     Description:
1133 :    
1134 :     Added a "join" combinator to the ParserComb module in smlnj-lib.cm.
1135 :    
1136 :     ----------------------------------------------------------------------
1137 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1138 : mblume 1770 Date: 2005/02/28 23:40:00 CST
1139 :     Tag: blume-20050228-mVar
1140 :     Description:
1141 :    
1142 :     Fixed serious bug (brown paper bag variety) in new implementation of
1143 :     structure Atom in CML. (I had accidentally used a mailbox instead of
1144 :     an mvar, leaving the door open for races.)
1145 :    
1146 :     ----------------------------------------------------------------------
1147 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1148 : mblume 1761 Date: 2005/02/25 15:00:00 CST
1149 :     Tag: Release_110_53
1150 :     Description:
1151 :    
1152 :     New working version (110.53). NEW BOOTFILES!
1153 :    
1154 :     ----------------------------------------------------------------------
1155 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1156 : mblume 1760 Date: 2005/02/25 14:50:00 CST
1157 :     Tag: blume-20050225-susp
1158 :     Description:
1159 :    
1160 :     Brought back SMLofNJ.Susp. The underlying suspension type is the one
1161 :     implemented in Core -- which means that it is the same as the one used
1162 :     by the lazy extension.
1163 :    
1164 :     ----------------------------------------------------------------------
1165 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1166 : mblume 1759 Date: 2005/02/24 16:50:00 CST
1167 :     Tag: blume-20050224-cml-atom
1168 :     Description:
1169 :    
1170 :     Simpler and at the same time more general implementation of structure
1171 :     Atom in CML.
1172 :    
1173 :     ----------------------------------------------------------------------
1174 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1175 : mblume 1758 Date: 2005/02/15 17:35:00 CST
1176 :     Tag: blume-20050215-tools
1177 :     Description:
1178 :    
1179 :     Created new "tools" directory under "src" and moved "TraceDebugProf"
1180 :     there.
1181 :    
1182 :     ----------------------------------------------------------------------
1183 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1184 : mblume 1755 Date: 2005/02/10 17:55:00 CST
1185 :     Tag: blume-20050210-longlong
1186 :     Description:
1187 :    
1188 :     Implemented "long long" arguments and results for NLFFI. (Only the
1189 :     PPC/MacOS implementation is complete, the other backends still need to
1190 :     be updated.)
1191 :    
1192 :     ----------------------------------------------------------------------
1193 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1194 : mblume 1751 Date: 2005/01/24 17:40:00 CST
1195 :     Tag: blume-20050124-mlyacc
1196 :     Description:
1197 :    
1198 :     Minor cleanup in ML-Yacc rule printing mechanism. This should fix a
1199 :     problem with certain "as" patterns which previously got rendered
1200 :     using incorrect syntax.
1201 :    
1202 :     ----------------------------------------------------------------------
1203 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1204 : mblume 1750 Date: 2005/01/18 12:00:00 CST
1205 :     Tag: blume-20050118-profile
1206 :     Description:
1207 :    
1208 :     Made time profiling code (interrupt handler) in runtime system aware
1209 :     of new array representation.
1210 :    
1211 :     ----------------------------------------------------------------------
1212 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1213 : mblume 1747 Date: 2005/01/14 18:00:00 CST
1214 :     Tag: blume-20050114-heap2exec
1215 :     Description:
1216 :    
1217 :     Implemented new (but still experimental) heap2exec facility. This is
1218 :     tested under Mac OS X and should work under Linux (will test shortly).
1219 :     It will probably also work on the Sparc (will test some time later).
1220 :    
1221 :     - removed old "HACKED_STANDALONE" hack from runtime
1222 :    
1223 :     To be able to test this, uncomment the request for "heap2asm" in
1224 :     config/targets prior to installation. (Notice that this is different
1225 :     from "heap2exec" mentioned below. Not a typo.)
1226 :    
1227 :     To perform an actual test, run the command
1228 :    
1229 :     $ bin/heap2exec heapfile execfile
1230 :    
1231 :     (You can put heap2exec on your shell's path.)
1232 :    
1233 :     For example, run
1234 :    
1235 :     $ bin/heap2exec bin/.heap/ml-yacc.ppc-darwin mly
1236 :    
1237 :     This will create a standalone executable called "mly" which you can
1238 :     then invoke directly as a command.
1239 :    
1240 :     ----------------------------------------------------------------------
1241 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1242 : mblume 1746 Date: 2005/01/07 11:44:00 CST
1243 :     Tag: blume-20050107-mlstring
1244 :     Description:
1245 :    
1246 :     fixed off-by-one error in ML_STRING macro (globals.c)
1247 :    
1248 :     ----------------------------------------------------------------------
1249 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1250 : mblume 1744 Date: 2004/12/23 18:00:00 CST
1251 :     Tag: blume-20041223-santa
1252 :     Description:
1253 :    
1254 :     Made ml-build script "smarter" (but only very little).
1255 :    
1256 :     ----------------------------------------------------------------------
1257 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1258 : mblume 1742 Date: 2004/12/21 15:05:00 CST
1259 :     Tag: blume-20041221-longlong
1260 :     Description:
1261 :    
1262 :     * Implemented access to signed and unsigned long long data in NLFFI.
1263 :     (The parameter-passing part of the picture has not complete. But
1264 :     data structure access seems to work.)
1265 :    
1266 :     * Fixed CM's incorrect assumption that the PPC is little-endian.
1267 :     (On the Mac, it is big-endian. And that's currently our only
1268 :     PPC platform.)
1269 :    
1270 :     ----------------------------------------------------------------------
1271 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1272 : mblume 1741 Date: 2004/12/21 12:50:00 CST
1273 :     Tag: blume-20041221-memory
1274 :     Description:
1275 :    
1276 :     Some cleanup in the $c/memory.cm library: separated some concerns by
1277 :     moving allocation code and memory access code each into their own
1278 :     files.
1279 :    
1280 :     ----------------------------------------------------------------------
1281 : allenleung 1740 Name: Allen Leung (leunga (at) reservoir (dot) com)
1282 :     Date: 2004/12/17 16:12:00 EST
1283 :     Tag: leunga-20041217-cygwin-smlnj-home
1284 :     Description:
1285 :    
1286 : blume 2155 The Unix I/O library of SML/NJ on cygwin does not understand
1287 :     Windows style pathname, so problems arise when SMLNJ_HOME is set
1288 :     to a Windows style pathname. _run-sml now converts SMLNJ_HOME
1289 :     to a POSIX pathname on cygwin.
1290 : allenleung 1740
1291 :     ----------------------------------------------------------------------
1292 : mblume 1737 Name: Matthias Blume (blume (at) tti - c (dot) org)
1293 : mblume 1736 Date: 2004/12/16 13:35:00 CST
1294 :     Tag: Release_110_52
1295 :     Description:
1296 :    
1297 :     Last-minute changes incorporated into 110.52. Release tag moved.
1298 :    
1299 :     The changes:
1300 :     - HashString.hashString' -> HashString.hashSubstring
1301 :     - bug fix in UnivariateStats
1302 :    
1303 :     ----------------------------------------------------------------------
1304 : mblume 1702 Name: Matthias Blume (blume (at) tti - c (dot) org)
1305 : mblume 1733 Date: 2004/12/15 23:40:00 CST
1306 :     Tag: blume-20041215-hashSubstring
1307 :     Description:
1308 :    
1309 :     - HashString.hashString' -> HashString.hashSubstring
1310 :     - corresponding changes in atom.sml
1311 :     - "de-compressed" (aka. un-obfuscated) code for UnivariateStats and
1312 :     added some comments
1313 :    
1314 :     ----------------------------------------------------------------------
1315 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1316 : mblume 1728 Date: 2004/12/15 15:30:00 CST
1317 : mblume 1736 Tag: (Release_110_52)
1318 : mblume 1728 Description:
1319 :    
1320 :     New working version (110.52). NEW BOOTFILES!
1321 :    
1322 :     ----------------------------------------------------------------------
1323 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1324 : mblume 1727 Date: 2004/12/15 12:45:00 CST
1325 :     Tag: blume-20041215-spaces
1326 :     Description:
1327 :    
1328 :     More on the space problem (this time for Win32).
1329 :    
1330 :     ----------------------------------------------------------------------
1331 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1332 : mblume 1725 Date: 2004/12/14 17:30:00 CST
1333 :     Tag: blume-20041214-spaces
1334 :     Description:
1335 :    
1336 :     Hacked some of the scripts (in particular: the installer) to cope with
1337 :     spaces in filenames a bit better. But beware: the current "solution"
1338 :     is likely still full of bugs and inherently incomplete. (We need to
1339 :     do away with those shell scripts for a comprehensive solution.)
1340 :    
1341 :     ----------------------------------------------------------------------
1342 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1343 : mblume 1724 Date: 2004/12/13 14:45:00 CST
1344 :     Tag: blume-20041213-ml-makedepend
1345 :     Description:
1346 :    
1347 :     Fixed bug in code for ml-makedepend.
1348 :    
1349 :     ----------------------------------------------------------------------
1350 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1351 : mblume 1720 Date: 2004/12/09 16:30:00 CST
1352 :     Tag: blume-20041209-statistics
1353 :     Description:
1354 :    
1355 :     Added two simple but potentially useful statistics modules to SML/NJ Library.
1356 :     (See CHANGES file there.)
1357 :    
1358 :     ----------------------------------------------------------------------
1359 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1360 : mblume 1718 Date: 2004/12/01 16:50:00 CST
1361 :     Tag: blume-20041201-atom
1362 :     Description:
1363 :    
1364 :     smlnj-lib:
1365 :    
1366 :     Added function HashString.hashString' for substrings.
1367 :     Hand-inlined CharVector.foldl into HashString (for speed).
1368 :     Modified implementation of structure Atom to avoid extracting
1369 :     strings from substrings unless necessary.
1370 :     (Also see CHANGES file for smlnj-lib.)
1371 :    
1372 :     ----------------------------------------------------------------------
1373 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1374 : mblume 1717 Date: 2004/11/24 22:15:00 CST
1375 :     Tag: blume-20041124-cml
1376 :     Description:
1377 :    
1378 :     Made sure CML compiles when Position = Int64.
1379 :    
1380 :     ----------------------------------------------------------------------
1381 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1382 : mblume 1715 Date: 2004/11/24 14:30:00 CST
1383 :     Tag: blume-20041124-position
1384 :     Description:
1385 :    
1386 :     The compiler can now be compiled in a mode that makes structure Position
1387 :     equal to Int64. The default, however, is unchanged (Position = Int31)
1388 :     for the time being.
1389 :    
1390 :     To enable 64-bit positions, use the following procedure:
1391 :    
1392 :     1. Start sml
1393 :     2. Autoload $smlnj/cmb.cm (if not already autoloaded)
1394 :     3. Type
1395 :     #set (CMB.symval "USE_64_BIT_POSITIONS") (SOME 1);
1396 :     4. Run CMB.make() as usual.
1397 :    
1398 :     This is barely tested. The only test so far was a little SML program
1399 :     counting the number of characters in an 8-gigabyte file by
1400 :     reading it character-by-character. That test was successful.
1401 :    
1402 :     In support of 64-bit positions, a number of new functions have been
1403 :     added to the runtime system.
1404 :    
1405 :     ----------------------------------------------------------------------
1406 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1407 : mblume 1716 Date: 2004/11/23 14:45:00 CST
1408 :     Tag: blume-20041123-useFile
1409 : mblume 1712 Description:
1410 :    
1411 :     Fixed a problem with unhelpful error messages related to problems with
1412 :     .cm- or .sml files that appear as part of the sml command line.
1413 :    
1414 :     ----------------------------------------------------------------------
1415 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1416 : mblume 1703 Date: 2004/11/18 15:40:00 CST
1417 :     Tag: Release_110_51
1418 :     Description:
1419 :    
1420 :     New working version (110.51). NEW BOOTFILES!
1421 :    
1422 :     ----------------------------------------------------------------------
1423 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1424 : mblume 1702 Date: 2004/11/18 15:35:00 CST
1425 :     Tag: <none>
1426 :     Description:
1427 :    
1428 :     Enabled dlopen and friends for FreeBSD (as recommended by Johannes 5
1429 :     Joemann).
1430 :    
1431 :     ----------------------------------------------------------------------
1432 : allenleung 1701 Name: Allen Leung (leunga (at) reservoir (dot) com)
1433 :     Date: 2004/11/17 16:05:21 EST 2004
1434 :     Tag: leunga-20041117-mlrisc-live-kill
1435 :     Description:
1436 :    
1437 : blume 2155 Added support for MLTree constructs LIVE and KILL
1438 : allenleung 1701 to all the architectures.
1439 :    
1440 :     ----------------------------------------------------------------------
1441 : mblume 1687 Name: Matthias Blume (blume (at) tti - c (dot) org)
1442 : mblume 1689 Date: 2004/11/13 00:20:00 CST
1443 :     Tag: blume-20041113-versiontool
1444 :     Description:
1445 :    
1446 :     - Stripped down the versiontool: It now only handles the version number.
1447 :     The date string is generated at bootstrap time (during makeml).
1448 :    
1449 :     - In a previous commit, fixed a minor issue with how polyequal is being
1450 :     translated. In particular, the code now "looks through" abstractions.
1451 :     This results in slightly fewer polyEqual warnings and hopefully slightly
1452 :     more efficient code. Important examples for where this matters are
1453 :     the new int64 and word64 types.
1454 :    
1455 :     ----------------------------------------------------------------------
1456 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1457 : mblume 1687 Date: 2004/11/12 00:30:00 CST
1458 :     Tag: blume-20041112-int64
1459 :     Description:
1460 :    
1461 :     Structure Int64 fully hooked in. (The implementation is not very
1462 :     efficient, though.)
1463 :    
1464 :     ----------------------------------------------------------------------
1465 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1466 : mblume 1686 Date: 2004/11/11 17:30:00 CST
1467 :     Tag: blume-20041111-more64
1468 :     Description:
1469 :    
1470 :     All the pieces of Word64 are now there, with the exception of the
1471 :     conversions from and to LargeWord. (Eventually these need to be identities,
1472 :     but for the time being they don't even make sense because LargeWord is
1473 :     32-bit wide.)
1474 :    
1475 :     Also started to add similar support for Int64, but major pieces of that
1476 :     are still missing.
1477 :    
1478 :     ----------------------------------------------------------------------
1479 : mblume 1668 Name: Matthias Blume (blume (at) tti - c (dot) org)
1480 : mblume 1684 Date: 2004/11/11 00:15:00 CST
1481 :     Tag: blume-20041111-word64
1482 :     Description:
1483 :    
1484 :     Structure Word64 is now (almost) complete, word literals and patterns
1485 :     seem to work. There are a few odd pieces missing. In particular,
1486 :     I didn't do the {from,to}LargeWord parts because LargeWord is still Word32
1487 :     at the moment.
1488 :    
1489 :     Making Word64 official would mean that LargeWord becomes Word64. But
1490 :     this requires extreme care because most word-word conversions have to
1491 :     go through LargeWord, so making a mistake means loss of efficiency or
1492 :     worse. Eventually there will be a solution similar to (but actually
1493 :     simpler than) what I did with IntInf.
1494 :    
1495 :     ----------------------------------------------------------------------
1496 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1497 : mblume 1683 Date: 2004/11/10 18:12:00 CST
1498 :     Tag: blume-20041110-64bit
1499 :     Description:
1500 :    
1501 :     More 64-bit hacking (but still not even half-way there yet).
1502 :     Also, some assorted improvements to the handling of 8-bit words.
1503 :    
1504 :     ----------------------------------------------------------------------
1505 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1506 : mblume 1682 Date: 2004/11/09 17:50:00 CST
1507 : mblume 1683 Tag: <none>
1508 : mblume 1682 Description:
1509 :    
1510 :     Started adding some infrastructure for supporting 64-bit int- and
1511 :     word-types. (Still in its very early stages.)
1512 :    
1513 :     ----------------------------------------------------------------------
1514 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1515 : mblume 1672 Date: 2004/10/28 10:45:00 CDT
1516 :     Tag: Release_110_50
1517 :     Description:
1518 :    
1519 :     New working version (110.50). NEW BOOTFILES!
1520 :    
1521 :     =====================
1522 :    
1523 :     Also:
1524 :    
1525 :     - Changend config/srcarchiveurl from a file just
1526 :     containing the URL string into a file containing
1527 :     shell script code. The code has access to the $VERSION variable.
1528 :     - Made corresponding changes to config/install.sh and config/unpack.
1529 :     - Default contents of config/srcarchiveurl uses $VERSION and
1530 :     normally does not have to be edited to reflect a version change.
1531 :    
1532 :     (As a result, a version change can be done by just editing
1533 :     config/version, the rest is now automatic.)
1534 :    
1535 :     ----------------------------------------------------------------------
1536 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1537 : mblume 1669 Date: 2004/10/27 17:50:00 CDT
1538 :     Tag: blume-20041027-btrace-msg
1539 :     Description:
1540 :    
1541 :     BackTrace.monitor now also reports the source of the exception that
1542 :     triggered the trace.
1543 :    
1544 :     ----------------------------------------------------------------------
1545 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1546 : mblume 1668 Date: 2004/10/27 17:20:00 CDT
1547 :     Tag: blume-20041027-x86-c-calls
1548 :     Description:
1549 :    
1550 :     This is the HISTORY entry for two earlier commits, both concerning
1551 :     the x86 c-calls code in MLRISC:
1552 :    
1553 :     - added a missing LOAD in the code that deals with struct arguments
1554 :     - made sure the caller does not add the wrong number of bytes to the
1555 :     stack pointer after a call of a function returning a struct
1556 :     (the callee already pops the implicit argument which points to
1557 :     the space reserved for the result)
1558 :    
1559 :     ----------------------------------------------------------------------
1560 : allenleung 1662 Name: Allen Leung (leunga (at) reservoir (dot) com)
1561 :     Date: 2004/10/24 14:00:00 EST
1562 :     Tag: leunga-20041024-x86-gas-fucomip
1563 :     Description:
1564 :    
1565 :     John discovered a bug in the syntax of fucomip.
1566 :     The opcodes FU?COMIP? have been changed to
1567 :    
1568 :     fu?comip? %st(i), %st
1569 :    
1570 :     ----------------------------------------------------------------------
1571 : mblume 1622 Name: Matthias Blume (blume (at) tti - c (dot) org)
1572 : mblume 1656 Date: 2004/10/20 15:06:00 CDT
1573 :     Tag: blume-20041020-standalone-backtrace
1574 :     Description:
1575 :    
1576 :     Added a mechanism for getting back-trace information from standalone
1577 :     programs. Here is how it works:
1578 :    
1579 :     1. The part of the program from which you want to get backtrace
1580 :     information (usually the whole program) should be wrapped with
1581 :     BackTrace.monitor. This is a (unit->'a)->'a function, and your
1582 :     main program could be modified from something like
1583 :    
1584 :     fun main (pgm, args) = ...
1585 :    
1586 :     to
1587 :    
1588 :     fun main (pgm, args) = BackTrace.monitor (fn () => ...)
1589 :    
1590 :     2. To be able to access BackTrace.monitor, you have to add
1591 :     library $smlnj-tdp/plugins.cm to the .cm file that contains your
1592 :     main function.
1593 :    
1594 :     3. Remove all compiled code (i.e., all the .cm/ subdirectories that
1595 :     CM might have created in the past for your project).
1596 :    
1597 :     4. Build the system using this command line:
1598 :    
1599 :     ml-build -Ctdp.instrument=true \$smlnj-tdp/back-trace.cm \
1600 :     myprog.cm MyProg.main myprog
1601 :    
1602 :     instead of the usual
1603 :    
1604 :     ml-build myprog.cm MyProg.main myprog
1605 :    
1606 :     I changed a library name:
1607 :    
1608 :     $/trace-debug-profile.cm --> $smlnj-tdp/plugins.cm
1609 :    
1610 :     New libraries:
1611 :    
1612 :     $smlnj-tdp/back-trace.cm
1613 :     -- when loaded causes the back-trace plugin to be installed
1614 :     $smlnj-tdp/coverage.cm
1615 :     -- when loaded causes the coverage plugin to be installed
1616 :    
1617 :     ----------------------------------------------------------------------
1618 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1619 : mblume 1655 Date: 2004/10/18 16:45:00 CDT
1620 :     Tag: blume-20041018-groupowner
1621 :     Description:
1622 :    
1623 :     Added an "obsolete" warning for the "group owner" syntax to CM's parser.
1624 :    
1625 :     Eliminated group owner specs from .cm files throughout the source tree.
1626 :    
1627 :     ----------------------------------------------------------------------
1628 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1629 : mblume 1653 Date: 2004/10/15 15:45:00 CDT
1630 :     Tag: blume-20041015-coverage
1631 :     Description:
1632 :    
1633 :     * Test coverage tool added!
1634 :     * Further reorganization of tracing-, debugging-, and profiling support:
1635 :    
1636 :     - moved original BTImp -- now called BackTrace -- into a separate
1637 :     library called $/trace-debug-profile.cm
1638 :     - eliminated all mentions of BTrace from SMLofNJ.Internals
1639 :     - only the instrumentation mechanism is now left in the compiler proper
1640 :     - BackTrace module is a plugin which is NOT plugged in by default
1641 :     - Coverage module is another such plugin
1642 :    
1643 :     To get the benefits of any of these plugin modules, the code in
1644 :     question must be compiled with tdp instrumentation turned on. This
1645 :     can be done by setting SMLofNJ.Internals.TDP.mode to true.
1646 :     (The ref cell is also controlled via the -Ctdp.instrument=... switch.)
1647 :    
1648 :     Plugins are selected at link time. (Pre-compiled instrumented code
1649 :     can be re-loaded with different plugins in effect.) When an
1650 :     instrumented module is linked, whatever plugins are at that time
1651 :     enabled will come into effect for that module.
1652 :    
1653 :     To enable the back-trace plugin, load library $/trace-debug-profile.cm
1654 :     and invoke BackTrace.install() (e.g., from the interactive prompt).
1655 :     To enable the coverage plugin, load the same library and invoke
1656 :     Coverage.install().
1657 :    
1658 :     Back-traces are generated automatically on uncaught exceptions and
1659 :     when the code in question explicitly invokes BackTrace.trigger().
1660 :    
1661 :     Coverage (and execution frequency-) information must be queried
1662 :     explicitly by calling Coverage.not_covered and Coverage.hot_spots.
1663 :    
1664 :     ----------------------------------------------------------------------
1665 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1666 : mblume 1652 Date: 2004/10/14 17:40:00 CDT
1667 :     Tag: blume-20041014-tdp-core
1668 :     Description:
1669 :    
1670 :     Snapshot of a significant overhaul of how the trace/debug/profile support
1671 :     is hooked into the system (specifically: Core and SMLofNJ.Internals).
1672 :    
1673 :     ----------------------------------------------------------------------
1674 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1675 : mblume 1650 Date: 2004/10/13 16:34:00 CDT
1676 :     Tag: blume-20041013-tdp
1677 :     Description:
1678 :    
1679 :     Some rationalization of names:
1680 :    
1681 :     structure BTrace -> structure TDPInstrument
1682 :     etc.
1683 :    
1684 :     This is is preparation of using the original back-trace
1685 :     instrumentation for other purposes. "TDP" stands for
1686 :     Trace/Debug/Profile.
1687 :    
1688 :     The control flag controlling whether instrumentation is on or off is now
1689 :     registered under a different name, so instead of running sml as
1690 :    
1691 :     sml -Cinstrument.btrace-mode=true
1692 :    
1693 :     one has to say
1694 :    
1695 :     sml -Ctdp.instrument=true
1696 :    
1697 :     ----------------------------------------------------------------------
1698 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1699 : mblume 1645 Date: 2004/10/11 16:37:00 CDT
1700 :     Tag: blume-20041011-regions
1701 :     Description:
1702 :    
1703 :     Made some minor modifications to elabcore.sml to have source regions
1704 :     be propagated more tightly -- resulting in better (i.e., smaller)
1705 :     regions being reported in error- and debug messages.
1706 :    
1707 :     ----------------------------------------------------------------------
1708 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1709 : mblume 1644 Date: 2004/10/08 22:50:00 CDT
1710 :     Tag: blume-20041008-cmkw
1711 :     Description:
1712 :    
1713 :     Fixed handling of keywords in .cm files: After seeing "is" the lexer
1714 :     treats subsequent occurrences of "group", "library", "source", "is",
1715 :     "*", and "-" as ordinary identifiers rather than keywords.
1716 :    
1717 :     Most seriously, this fixes a problem with CM's "shell" tool. The tool
1718 :     is supposed to accept a tool argument called "source", but this did
1719 :     not work because of the clash with the keyword.
1720 :    
1721 :     ----------------------------------------------------------------------
1722 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1723 : mblume 1642 Date: 2004/10/07 16:00:00 CDT
1724 :     Tag: blume-20041007-cleanup
1725 :     Description:
1726 :    
1727 :     Assorted cleanup work:
1728 :    
1729 :     - got rid of intstrmap in favor of using the library's
1730 :     hash table implementation
1731 :     - threw out most of the pathnames stuff, as it was not used anyway
1732 :     - simplified tokentable implementation
1733 :     - fixed some minor spelling errors
1734 :    
1735 :     ----------------------------------------------------------------------
1736 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1737 : mblume 1641 Date: 2004/10/06 15:15:15 CDT
1738 :     Tag: blume-20041006-handler
1739 :     Description:
1740 :    
1741 :     Cleaned up the absyn to reflect the invariant that HANDLE always
1742 :     carries a FNexp as part of the type definition. This eliminates some
1743 :     superfluous sanity checks at runtime down the road.
1744 :    
1745 :     Some minor cleanup of the btrace code.
1746 :    
1747 :     ----------------------------------------------------------------------
1748 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1749 : mblume 1640 Date: 2004/10/01 10:20:30 CDT
1750 :     Tag: blume-20041001-slave
1751 :     Description:
1752 :    
1753 :     Added hack to make slave mode work in the presence of the version
1754 :     tool. (Still, since the master does two passes over the code for
1755 :     CMB.make, the release number gets bumped twice when slaves are
1756 :     attached. I don't know if this is worth fixing...)
1757 :    
1758 :     ----------------------------------------------------------------------
1759 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1760 : mblume 1639 Date: 2004/09/30 10:55:00 CDT
1761 :     Tag: blume-20040930-version
1762 :     Description:
1763 :    
1764 :     * Moved the "version" magic into its own little library under
1765 : mblume 1672 src/system/smlnj/internal. This avoids expensive reconstruction of
1766 :     a stable src/compiler/core.cm.
1767 : mblume 1639
1768 : mblume 1672 * At the same time, structure CompilerVersion is now known as
1769 :     structure SMLNJVersion.
1770 : mblume 1639
1771 :     * Arranged for the version tool to NOT kick in when rebuilding the system
1772 :     (makeml -rebuild, fixpt). Otherwise one would never reach a fixpoint.
1773 :     Also, loading the versiontool does not work when rebuilding the system
1774 :     because CM is not properly initialized at that time.
1775 :    
1776 :     ----------------------------------------------------------------------
1777 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1778 : mblume 1638 Date: 2004/09/29 14:00:00 CDT
1779 :     Tag: blume-20040929-autoversion
1780 :     Description:
1781 :    
1782 :     Implemented some CM magic to have
1783 :     file src/compiler/TopLevel/main/version.sml
1784 :     generated automagically.
1785 :     The version is taken from two files: config/version and config/release.
1786 :     The first is expected to contain a two-part version number such as 110.49.
1787 :     The second should contain a single number, but it may be missing.
1788 :    
1789 :     If the environment variable VERSIONTOOL_BUMP_RELEASE is defined at the
1790 :     time the version tool is loaded (which is the first time you say CMB.make),
1791 :     then the tool will increment the value stored in config/release every
1792 :     time CMB.make is invoked.
1793 :    
1794 :     The binfile format is now insensitive to anything beyond the first
1795 :     two components of a version number, so bumping the release does not render
1796 :     binfiles incompatible. Auto-bumping can be used to keep track of versions
1797 :     during development without invalidating existing binfiles.
1798 :    
1799 :     In any case, every CMB.make updates the date information in version.sml.
1800 :     (This is the date that is printed in the banner.)
1801 :    
1802 :     ----------------------------------------------------------------------
1803 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1804 : mblume 1634 Date: 2004/09/28 10:53:00 CDT
1805 :     Tag: blume-20040928-controls
1806 :     Description:
1807 :    
1808 :     Some cleanup of the controls code.
1809 :    
1810 :     ----------------------------------------------------------------------
1811 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1812 : mblume 1633 Date: 2004/09/27 22:08:00 CDT
1813 :     Tag: blume-20040927-controls
1814 :     Description:
1815 :    
1816 :     Added two pieces of functionality to the Controls interface:
1817 :    
1818 :     1. val save'restore: 'a control -> unit -> unit
1819 :    
1820 :     grabs the current value of the control in stage 1 and restores it
1821 :     in stage 2.
1822 :    
1823 :     2. val set' : 'a control * 'a -> unit -> unit
1824 :    
1825 :     stores the given value into the control in stage 2 (i.e., delayed)
1826 :     but does all error checking in stage 1.
1827 :     (This is for string controls that need to do parse their argument --
1828 :     something that might fail. In some cases, notably in CM, one
1829 :     already knows the intended argument but wants to delay the actual
1830 :     assignment until a time when error recovery would be more difficult.)
1831 :    
1832 :     Changed the handling of controls in tool arguments to classes "sml" and
1833 :     "lazysml":
1834 :     - use Controls.save'restore as a more robust way of restoring the
1835 :     old value (in particular: without having to re-parse the string)
1836 :     - use controls to handle the "overload" keyword in the init group
1837 :     (I believe this change actually fixes a long-standing obscure bug.)
1838 :    
1839 :     ----------------------------------------------------------------------
1840 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1841 : mblume 1632 Date: 2004/09/27 17:00:00 CDT
1842 :     Tag: blume-20040927-lazysml
1843 :     Description:
1844 :    
1845 :     Added a new tool class called "lazysml" to CM's tool chest. The only
1846 :     difference to "sml" is that compilation is done with Control.lazysml
1847 :     set to true. A source of class "lazysml" is automatically recognized
1848 :     by a file name suffix of ".lml".
1849 :    
1850 :     In addition to the above feature, the original class "sml" now also
1851 :     supports a tool argument "lazy" which has the same effect. As a
1852 :     result, the following three lines are equivalent:
1853 :    
1854 :     foo.sml : lazysml
1855 :     foo.sml : sml (lazy)
1856 :     foo.sml (lazy)
1857 :    
1858 :     The setting goes into effect both during parsing and during
1859 :     compilation. The original setting is restored right after parsing and
1860 :     after compilation, respectively.
1861 :    
1862 :     In addition to all the above, there is also a general mechanism to set
1863 :     ANY of the "controls" that are available at the command line via
1864 :     "-C..." on a per-sml-file basis. The same rules that apply for "lazy"
1865 :     apply as well. (In fact, "lazy" is implemented as a special case of
1866 :     the general mechanism.)
1867 :    
1868 :     The .cm file syntax uses a new keyword tool argument called "with".
1869 :     There are several ways of indicating the desired settings:
1870 :    
1871 :     foo.sml (with:parser.quotations=true)
1872 :     foo.sml (with:(name:parser.quotations value:true))
1873 :     foo.sml (with:(name:name1 value:value1 name:name2 value:value2 ...))
1874 :     foo.sml (with:(name1=value1 name2=value2 ...))
1875 :     foo.sml (with:(name1=value1 name:name2 value:value2 name3=value3 ...))
1876 :    
1877 :     etc.
1878 :    
1879 :     Another possible abbreviation is to leave out the =v or value:v part
1880 :     if the name refers to a boolean control (in which case the value is
1881 :     taken to be true). Thus, one could get lazy sml also by saying:
1882 :    
1883 :     foo.sml (with:parser.lazy-keyword=true)
1884 :     foo.sml (with:parser.lazy-keyword)
1885 :     foo.sml (with:(name:parser.lazy-keyword value:true))
1886 :     foo.sml (with:(name:parser.lazy-keyword))
1887 :    
1888 :     ----------------------------------------------------------------------
1889 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1890 : mblume 1631 Date: 2004/09/24 16:22:00 CDT
1891 :     Tag: blume-20040924-ppc-long-branch
1892 :     Description:
1893 :    
1894 :     Turned message about "emiting long form of branch" off by default.
1895 :     Added a control flag to turn it back on when desired.
1896 :    
1897 :     ----------------------------------------------------------------------
1898 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1899 : mblume 1630 Date: 2004/09/24 16:05:00 CDT
1900 :     Tag: blume-20040924-rounding
1901 :     Description:
1902 :    
1903 :     Applied patch for setting rounding modes under Mac OS X. Thanks to
1904 :     Melissa O'Neill for providing the code!
1905 :    
1906 :     ----------------------------------------------------------------------
1907 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1908 : mblume 1629 Date: 2004/09/23 17:30:00 CDT
1909 :     Tag: blume-20040923-envvars
1910 :     Description:
1911 :    
1912 :     1. Changed definition of type ControlRegistry.registry_tree to
1913 :     include control_info (i.e., the name of the controlling environment
1914 :     variable).
1915 :    
1916 :     2. Added command-line flags -e and -E to print the names of environment
1917 :     variables that can be used to control internal settings.
1918 :     (This uses the new API mentioned in 1.)
1919 :    
1920 :     ----------------------------------------------------------------------
1921 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1922 : mblume 1622 Date: 2004/09/13 16:50:00 CDT
1923 :     Tag: Release_110_49
1924 :     Description:
1925 :    
1926 :     New working version (110.49). NEW BOOTFILES!
1927 :    
1928 :     ----------------------------------------------------------------------
1929 : mblume 1621 Name: Matthias Blume
1930 :     Date: 2004/09/13 16:20:00 CDT
1931 :     Tag: blume-20040913-config-mlrisc
1932 :     Description:
1933 :    
1934 :     Put target "mlrisc" back into the default list.
1935 :     (There is no harm in having it, and some users have expressed their
1936 :     wish to have "mlrisc" included by default.)
1937 :    
1938 :     ----------------------------------------------------------------------
1939 : jhr 1620 Name: John Reppy
1940 :     Date: 2004/09/13
1941 :     Tag: jhr-20040913-signals
1942 :     Description:
1943 :    
1944 :     Fixed the signal masking code to properly nest mask/unmask operations
1945 :     on a per-signal basis.
1946 :    
1947 :     ----------------------------------------------------------------------
1948 : mblume 1619 Name: Matthias Blume (blume (at) tti - c (dot) org)
1949 :     Date: 2004/09/08 13:20:00 CDT
1950 :     Tag: blume-20040908-heap-magic
1951 :     Description:
1952 :    
1953 :     Bumped the heap macig number to 0x09082004 to account for the changed
1954 :     layout of the ML frame under MacOS X.
1955 :    
1956 :     ----------------------------------------------------------------------
1957 : allenleung 1618 Name: Allen Leung (leunga (at) reservoir (dot) com)
1958 :     Date: 2004/09/03 11:26:00 EST
1959 :     Tag: leunga-20040903-cygwin-install
1960 :     Description:
1961 :    
1962 :     Added a patch to _arch-n-opsys to enable the Cygwin runtime.
1963 :     The Cygwin runtime is turned on by setting the environment
1964 :     variable SMLNJ_CYGWIN_RUNTIME to 1.
1965 :    
1966 :     ----------------------------------------------------------------------
1967 : mblume 1615 Name: Matthias Blume (blume (at) tti - c (dot) org)
1968 : mblume 1617 Date: 2004/08/31 17:15:00 CDT
1969 :     Tag: blume-20040831-core
1970 :     Description:
1971 :    
1972 :     Added some exports to src/compiler/core.cm upon request by J. Joemann.
1973 :    
1974 :     ----------------------------------------------------------------------
1975 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1976 : mblume 1616 Date: 2004/08/30 17:55:00 CDT
1977 :     Tag: blume-20040830-installer
1978 :     Description:
1979 :    
1980 :     Upon request by Johannes Joemann:
1981 :    
1982 :     - improved ML code of installer to fall back to coping when renaming
1983 :     fails (i.e., when source and target are on different file systems);
1984 :     the code compiles but has yet to be tested in anger
1985 :     - removed mlrisc from list of default targets (config/targets)
1986 :    
1987 :     ----------------------------------------------------------------------
1988 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
1989 : mblume 1615 Date: 2004/08/27 17:20:00 CDT
1990 :     Tag: blume-20040827-ptreql
1991 :     Description:
1992 :    
1993 :     Added ptreql primop to structure InlineT (upon request from Larry
1994 :     Paulson).
1995 :    
1996 :     ----------------------------------------------------------------------
1997 : allenleung 1613 Name: Allen Leung (leunga (at) reservoir (dot) com)
1998 : allenleung 1614 Date: 2004/08/15 21:21:00 EST
1999 :     Tag: leunga-110_48-udgraph
2000 :     Description:
2001 :    
2002 :     Another bug fix from Carl Hauser:
2003 :    
2004 :     diff /net/niflab/smlnj48/src/MLRISC/graphs/udgraph.sml udgraph.sml
2005 :     > 48c48
2006 :     > < | rmv((e as (k,_))::es,L) = rmv(es,if k = i then es else
2007 :     > e::L)
2008 :     > ---
2009 :     > > | rmv((e as (k,_))::es,L) = rmv(es,if k = i then L else e::L)
2010 :     > Without this, any deletion of an edge in an undirected graph does severe
2011 :     > violence to the graph.
2012 :    
2013 :     ----------------------------------------------------------------------
2014 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
2015 : allenleung 1613 Date: 2004/08/10 23:35:00 EST
2016 :     Tag: leunga-110_48-ppc
2017 :     Description:
2018 :    
2019 :     The IBM/MacOS syntax switch on PPC was incorrectly swapped.
2020 :    
2021 :     ----------------------------------------------------------------------
2022 : mblume 1602 Name: Matthias Blume (blume (at) tti - c (dot) org)
2023 : mblume 1615 Date: 2004/08/10 12:00:00 CDT
2024 : mblume 1602 Tag: Release_110_48
2025 :     Description:
2026 :    
2027 :     New working version (110.48). NEW BOOTFILES!
2028 :    
2029 :     ----------------------------------------------------------------------
2030 : allenleung 1599 Name: Allen Leung (leunga (at) reservoir (dot) com)
2031 :     Date: 2004/08/09 12:21:00 EST
2032 :     Tag: leunga-110_47-dijsktra
2033 :     Description:
2034 :    
2035 :     Bug fix from Carl Hauser:
2036 :    
2037 : blume 2155 single_source_shortest_paths in dijkstra.sml was observed to get wrong
2038 : allenleung 1599 answers (by comparing to single_source_shortest_paths in bellman-ford.sml).
2039 :    
2040 : blume 2155 The problem is that following the expression A.update(dist,s,Num.zero)
2041 : allenleung 1599 it is necessary to update the priority queue using Q.decreaseWeight(Q,s).
2042 :    
2043 :     ----------------------------------------------------------------------
2044 : mblume 1595 Name: Matthias Blume (blume (at) tti - c (dot) org)
2045 :     Date: 2004/08/06 18:10:00 CDT
2046 :     Tag: blume-20040806-cmdline
2047 :     Description:
2048 :    
2049 :     Fiddled with handling of command-line options:
2050 :    
2051 :     * sml now quits after processing the command line
2052 :     if -H, -S, -h<n>, or -s<n> appears as the last
2053 :     command-line argument
2054 :     * a new option -q terminates the session when encountered on
2055 :     the command line; subsequent arguments will be ignored
2056 :     * bug fixes: short (erroneous) arguments are no longer ignored
2057 :     completely
2058 :    
2059 :     ----------------------------------------------------------------------
2060 : allenleung 1593 Name: Allen Leung (leunga (at) reservoir (dot) com)
2061 :     Date: 2004/08/04 18:17:00 EST
2062 :     Tag: leunga-110_47-ppc-ibm-asm
2063 :     Description:
2064 :    
2065 :     - Added minimal IBM assembly syntax support for PowerPC.
2066 :    
2067 : blume 2155 - Cygwin: manually changed the file cygwin.def. Some exported symbols have
2068 : allenleung 1593 been altered in the runtime. We need an automatic way to keep the file
2069 :     in sync.
2070 :    
2071 :     ----------------------------------------------------------------------
2072 : mblume 1548 Name: Matthias Blume (blume (at) tti - c (dot) org)
2073 : mblume 1581 Date: 2004/08/04 14:00:00 CDT
2074 :     Tag: Release_110_47
2075 :     Description:
2076 :    
2077 :     New working version (110.47). NEW BOOTFILES!
2078 :    
2079 :     ----------------------------------------------------------------------
2080 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2081 : mblume 1580 Date: 2004/08/03 14:25:00 CDT
2082 :     Tag: blume-20040803-callingconv
2083 :     Description:
2084 :    
2085 :     Added low-level support for choosing C calling conventions by
2086 :     twiddling the type of rawccall. (See
2087 :     src/compiler/Semant/types/cproto.sml for details.)
2088 :    
2089 :     ----------------------------------------------------------------------
2090 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2091 : mblume 1579 Date: 2004/08/02 15:55:00 CDT
2092 :     Tag: blume-20040802-backout
2093 :     Description:
2094 :    
2095 :     Backed out of change to win32-filesys.c. The earlier patch to
2096 :     get_file_time caused CM to produce files with the wrong time stamp.
2097 :    
2098 :     ----------------------------------------------------------------------
2099 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2100 : mblume 1573 Date: 2004/08/02 14:45:00 CDT
2101 :     Tag: blume-20040802-nlffi-win32
2102 :     Description:
2103 :    
2104 :     Added NLFFI support for Win32, adapted from a patch provided by David
2105 :     Hansel. This is currently completely untested. Also, the issue
2106 :     concerning stdcall vs. ccall is still unresolved.
2107 :    
2108 :     ----------------------------------------------------------------------
2109 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2110 : mblume 1572 Date: 2004/07/30 17:55:00 CDT
2111 :     Tag: blume-20040730-various
2112 :     Description:
2113 :    
2114 :     Gearing up towards 110.47...
2115 :    
2116 :     - various minor bugfixes to ml-nlffigen
2117 :     - a beginning of a manual for nlffi
2118 :    
2119 :     - eliminated 'export name=value' in config/install.sh as this does
2120 :     not work with certain versions of /bin/sh
2121 :     (Thanks to David King at Motorola for catching this.)
2122 :    
2123 :     - several bugfixes provided or suggested by David Hansel at Reactive Systems:
2124 :     - added a test for tm==NULL to gmtime.c and localtime.c
2125 :     - applied patch for incorrect GetFileTime under win32
2126 :     - toSeconds -> toMilliseconds in Win32/win32-process.sml
2127 :    
2128 :     ----------------------------------------------------------------------
2129 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2130 : mblume 1557 Date: 2004/07/21 18:20:00 CDT
2131 :     Tag: blume-20040721-nlffigen
2132 :     Description:
2133 :    
2134 :     - Fixed minor issue in ml-nlffigen: Now generate structure T_foo
2135 :     for a typedef to an incomplete type, but leave out the "typ" member.
2136 :     (This is just for consistency.)
2137 :     - Started to produce what is supposed to become better (i.e., comprehensive)
2138 :     documentation of what ml-nlffigen does and produces.
2139 :    
2140 :     ----------------------------------------------------------------------
2141 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2142 : mblume 1548 Date: 2004/07/14 16:25:00 CDT
2143 :     Tag: blume-20040714-union
2144 :     Description:
2145 :    
2146 :     Added C_UNION to c-calls/c-types.sml and updated the machinery
2147 :     (ml-nlffigen, cproto.sml) that conveys C function interface
2148 :     information to the code generator.
2149 :    
2150 :     However, the actual architecture-specific implementation of function
2151 :     arguments and results that are C unions is still not implemented.
2152 :    
2153 :     ----------------------------------------------------------------------
2154 : allenleung 1539 Name: Allen Leung (leunga (at) reservoir (dot) com)
2155 : allenleung 1546 Date: 2004/07/14 14:38:00 EST
2156 :     Tag: leunga-110_46_1-ppc-lwzu
2157 :     Description:
2158 :    
2159 :     Added these instructions to the PowerPC architecture:
2160 :     LBZU(X), LHZU(X), LWZU(X),
2161 : blume 2155 STWU(X), STFDU, STFSU
2162 :    
2163 : allenleung 1546 etc...
2164 :    
2165 :     Note: I haven't added their instruction encoding into the description.
2166 :    
2167 :     ----------------------------------------------------------------------
2168 :     Name: Allen Leung (leunga (at) reservoir (dot) com)
2169 : allenleung 1539 Date: 2004/07/13 15:04:00 EST
2170 :     Tag: leunga-110_46_1-ppc-lwarx
2171 :     Description:
2172 :    
2173 :     Added the two instructions LWARX and STWCX to the PowerPC
2174 : blume 2155 instruction set.
2175 : allenleung 1539
2176 :     A (untested) rewrite of loop-structure.sml. The old version
2177 :     is completely broken.
2178 :    
2179 :     ----------------------------------------------------------------------
2180 : mblume 1479 Name: Matthias Blume (blume (at) tti - c (dot) org)
2181 : mblume 1537 Date: 2004/07/13 13:50:00 CDT
2182 :     Tag: blume-20040713-nlffi
2183 :     Description:
2184 :    
2185 :     - use paramAlloc to report c-calls with too many arguments
2186 :     (for PPC version where parameter area is pre-allocated)
2187 :     - added ccall_maxargspace to machspec (to implement the above)
2188 :     - made "make" commend in CM's "make" tool configurable
2189 :     - added option (default: on) for passing the name of the SML/NJ's "bin"
2190 :     directory to "make"; the call looks like this:
2191 :    
2192 :     make <options> SMLNJ_BINDIR=<dir> <target>
2193 :    
2194 :     This can be used by the Makefile to, e.g., pick the "right" version
2195 :     of ml-nlffigen.
2196 :     - minor code tweaks
2197 :    
2198 :     ----------------------------------------------------------------------
2199 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2200 : mblume 1532 Date: 2004/07/12 22:50:00 CDT
2201 :     Tag: blume-110_46_1-macosx-nlffi
2202 :     Description:
2203 :    
2204 :     NLFFI under Mac OS X now working (sort of). This is largely untested,
2205 :     though.
2206 :    
2207 :     Note: 1. You have to make a new, clean build of the runtime system.
2208 :     2. There are new BOOTFILES, you have to use them!
2209 :     (Doing the bootstrap process yourself would be *very* painful!
2210 :     If you absolutely have to do it, build the system under
2211 :     a different architecture and then cross-compile.)
2212 :    
2213 :     Version bumped to 110.46.1 to account for runtime data format changes.
2214 :    
2215 :     ----------------------------------------------------------------------
2216 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2217 : mblume 1515 Date: 2004/06/18 14:30:00 CDT
2218 :     Tag: blume-20040618-unix
2219 :     Description:
2220 :    
2221 :     Changed the implementation of structure Unix so that the same stream
2222 :     is returned every time one of the {text,bin}{In,Out}streamOf functions
2223 :     is invoked on the same proc. This is not what the spec currently
2224 :     says -- although IMO it arguably should. (See discussion below.)
2225 :    
2226 :     ----------------------------------------------------------------------
2227 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2228 : mblume 1507 Date: 2004/06/17 18:15:00 CDT
2229 :     Tag: Release_110_46
2230 :     Description:
2231 :    
2232 :     New working version (110.46). NEW BOOTFILES!
2233 :    
2234 :     ----------------------------------------------------------------------
2235 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2236 : mblume 1506 Date: 2004/06/17 17:20:00 CDT
2237 :     Tag: blume-20040617-timer-unix
2238 :     Description:
2239 :    
2240 :     Changed the interface of structures Timer and Unix to match the most
2241 :     recent Basis spec.
2242 :    
2243 :     In the case of Unix there still seems to be an open/weird issue:
2244 :    
2245 :     The {text,bin}{In,Out}streamOf functions are supposed to create
2246 :     fresh streams whenever they are called -- as opposed to have them
2247 :     return the same stream every time. This design is supposed to
2248 :     prevent space leaks caused by proc values hanging on to streams.
2249 :    
2250 :     The reap function, on the other hand, is supposed to close the
2251 :     streams. This cannot be done without having a handle on the
2252 :     stream in proc after all...
2253 :    
2254 :     I took the liberty to implement the following stopgap solution:
2255 :    
2256 :     The proc value hangs on to the most recently created stream(s).
2257 :     Reap closes those. If either or both of the two streams hadn't
2258 :     been created at all yet, then reap will close the corresponding
2259 :     file descriptors directly.
2260 :    
2261 :     PS: I don't understand the original space leak argument anymore. If
2262 :     a proc hangs on to the imperative stream, then I/O operations on those
2263 :     will advance the state of the cached stream and avoid the space leak.
2264 :    
2265 :     ----------------------------------------------------------------------
2266 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2267 : mblume 1500 Date: 2004/05/28 16:45:00 CDT
2268 :     Tag: blume-20040528-basis
2269 :     Description:
2270 :    
2271 :     Added signature PACK_REAL and exported functor PrimIO.
2272 :    
2273 :     ----------------------------------------------------------------------
2274 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2275 : mblume 1498 Date: 2004/05/25 16:00:00 CDT
2276 :     Tag: blume-20040525-group-owner
2277 :     Description:
2278 :    
2279 :     CM now ignores (but still accepts) the "owner" information in group
2280 :     descriptions. The owner of a group is its next enclosing
2281 :     library. Each group must have a unique owner. (There is a virtual
2282 : mblume 1505 "toplevel" library that owns groups which are not nested within a real
2283 : mblume 1498 library.) Previously, each group had to explicitly declare its owner,
2284 :     and CM would check that such a declaration is correct. The new scheme
2285 :     is to have CM check that for each group there is precisely one owning
2286 :     library.
2287 :    
2288 :     The advantage of the new scheme is that the programmer no longer needs
2289 :     to maintain the somewhat annoying owner information. The downside is
2290 :     that CM cannot enforce the ownership rule across multiple runs of
2291 :     CM.make. Fortunately, enclosing the same group in two different
2292 :     libraries A and B which are not part of the same program does not
2293 :     cause real problems.
2294 :    
2295 :     ----------------------------------------------------------------------
2296 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2297 : mblume 1496 Date: 2004/05/20 16:00:00 CDT
2298 :     Tag: blume-20040520-win32
2299 :     Description:
2300 :    
2301 :     Made the win32 version work again. (Strangely, a misplaced comma had
2302 :     slipped into win32-process.c which prevented the runtime from being
2303 :     compiled correctly.)
2304 :    
2305 :     Also, included a minor addition to ml-build.bat analogous to what was
2306 :     done in blume-20040519-ml-build.
2307 :    
2308 :     ----------------------------------------------------------------------
2309 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2310 : mblume 1494 Date: 2004/05/19 22:10:00 CDT
2311 :     Tag: blume-20040519-ml-build
2312 :     Description:
2313 :    
2314 :     Arranged for ml-build to clean up after itself a little bit better.
2315 :     The script generates a temporary SML source file and compiles it using
2316 :     CM, so CM generates metadata (GUID, SKEL, objectfile) for it. It now
2317 :     gets rid of those at the end, so they don't accumulate under .cm.
2318 :    
2319 :     This required a minor change to install.sh because the name of the
2320 :     metadata directory (default: .cm) is actually configurable at
2321 :     installation time.
2322 :    
2323 :     ----------------------------------------------------------------------
2324 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2325 : mblume 1491 Date: 2004/05/18 15:50:00 CDT
2326 :     Tag: blume-20040518-mkreader
2327 :     Description:
2328 :    
2329 :     Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
2330 :     implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
2331 :    
2332 :     ----------------------------------------------------------------------
2333 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2334 : mblume 1489 Date: 2004/05/11 14:35:00 CDT
2335 :     Tag: blume-20040511-win32sock
2336 :     Description:
2337 :    
2338 :     Added previously missing support for many socket-related functions
2339 :     under win32. Thanks to David Hansel <hansel@reactive-systems.com>
2340 :     for the voluminous patch!
2341 :    
2342 :     (I have not tested this patch under win32 yet.)
2343 :    
2344 : mblume 1490 Here is David's e-mail:
2345 :    
2346 :     Hi,
2347 :    
2348 :     Attached to this email you find a diff against sml/nj 110.45
2349 :     that will enable socket support under Windows.
2350 :    
2351 :     To apply the patch (using unix or cygwin)
2352 :     1) gunzip runtime.diff.gz
2353 :     2) "cd" into "src/runtime" in the source tree of a fresh
2354 :     110.45 installation.
2355 :     3) patch -p 1 < [your/path/to]runtime.diff
2356 :    
2357 : blume 2155 The code compiles fine but has NOT yet been extensively tested.
2358 :     I only ran a few tests for basic socket client functionality
2359 :     (which worked fine). Especially the functions that use ioctl
2360 : mblume 1490 are not tested at all and might not work (see below).
2361 :    
2362 :     I implemented this since we want to move to a newer version of sml/nj
2363 :     but need socket support in order to use it. This is the first time I
2364 :     even had a look at the sml/nj source, so please review my changes
2365 :     before making this part of the distribution! Here are a few issues
2366 : blume 2155 that I think might be better for someone to solve who is more
2367 : mblume 1490 familiar with the sml/nj source (and socket programming):
2368 :    
2369 :     - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
2370 :     exception since I could not figure out what the windows equivalent
2371 :     of these functions is
2372 :    
2373 :     - In sockets-osdep.h there are a some #include statements that are
2374 :     only used in a few files that include sockets-osdep.h
2375 :    
2376 :     - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
2377 :     does not process its return value since I don't know how to
2378 :     report an error upwards.
2379 :    
2380 :     - It would probably be good to have a call to WSACleanup() when
2381 : blume 2155 the library is unloaded (if there is such a possibility).
2382 : mblume 1490 Otherwise I think Windows will take care of this automatically
2383 :     when the process finishes.
2384 :    
2385 :     - I used ioctlsocket() as a replacement for ioctl() but I have
2386 :     no idea if that is actually the proper replacement on Windows.
2387 :    
2388 :     - All these issues are marked in the code by "FIXME" comments.
2389 :    
2390 : blume 2155 We use sml/nj extensively in our products and are quite happy
2391 :     with it. I hope this contribution will help you.
2392 : mblume 1490
2393 :     Keep up the good work!
2394 :    
2395 :     David
2396 :    
2397 : mblume 1489 ----------------------------------------------------------------------
2398 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2399 : mblume 1488 Date: 2004/05/11 14:20:00 CDT
2400 :     Tag: blume-20040511-installml
2401 :     Description:
2402 :    
2403 :     Fixed two bugs in installml script. (Thanks to Vesa A. Norrman for
2404 :     the patch.)
2405 :    
2406 :     ----------------------------------------------------------------------
2407 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2408 : mblume 1487 Date: 2004/05/11 14:05:00 CDT
2409 :     Tag: blume-20040511-nlffi-netbsd
2410 :     Description:
2411 :    
2412 :     Added support for nlffi under netbsd. (Thanks to Vesa A. Norrman for
2413 :     the patch.)
2414 :    
2415 :     ----------------------------------------------------------------------
2416 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2417 : mblume 1486 Date: 2004/05/11 12:05:00 CDT
2418 :     Tag: blume-20040511-exports
2419 :     Description:
2420 :    
2421 :     As per request by Adam Chlipala <adam@hcoop.net>, extended various
2422 :     export lists in compiler-related .cm-files.
2423 :    
2424 :     ----------------------------------------------------------------------
2425 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2426 : mblume 1485 Date: 2004/05/11 11:35:00 CDT
2427 :     Tag: blume-20040511-allsource
2428 :     Description:
2429 :    
2430 :     The installer now honors the "src-smlnj" target again, although its meaning
2431 :     has changed from "all sources required for the compiler" to "all sources
2432 :     the installer knows about". In other words, if you enable "src-smlnj"
2433 :     in the "targets" file, then the installer will pull in sources for
2434 :     everything. (Notice that this refers to source code only. Compiled
2435 :     code is still only installed for modules that were requested explicitly
2436 :     or which are required for other modules that were requested explicitly.)
2437 :    
2438 :     ----------------------------------------------------------------------
2439 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2440 : mblume 1482 Date: 2004/04/23 17:40:00 CDT
2441 :     Tag: blume-20040423-ieee-scan
2442 :     Description:
2443 :    
2444 :     Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
2445 :     in the exponent calculation we get INF or ZERO (depending on the mantissa
2446 :     and the sign of the exponent).
2447 :    
2448 :     ----------------------------------------------------------------------
2449 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2450 : mblume 1480 Date: 2004/04/23 10:40:00 CDT
2451 :     Tag: blume-20040423-ml-build
2452 :     Description:
2453 :    
2454 :     The ml-build script now terminates with a non-0 status when something
2455 :     goes wrong.
2456 :    
2457 :     ----------------------------------------------------------------------
2458 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2459 : mblume 1479 Date: 2004/04/22 16:35:00 CDT
2460 :     Tag: blume-20040422-Option
2461 :     Description:
2462 :    
2463 :     Made exception Option to be the same as exception Option.Option
2464 :     (as it should be).
2465 :    
2466 :     ----------------------------------------------------------------------
2467 : allenleung 1468 Name: Allen Leung (leunga (at) reservoir (dot) com)
2468 :     Date: 2004/03/19 14:40:00 EST
2469 :     Tag: leunga-20040319-cygwin-nlffi
2470 :     Description:
2471 :    
2472 :     Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
2473 :     of SML/NJ. The problem is that
2474 :    
2475 :     lib = dlopen(NULL, ...)
2476 :     f = dlsym(lib, "malloc");
2477 :    
2478 : blume 2155 does not work on Windows unless we explicitly export symbols
2479 :     such as 'malloc' during linking. We fixed this by explicitly
2480 : allenleung 1468 exporting the required symbols with the magic gcc incantation:
2481 :    
2482 :     -Wl,--export-all cygwin.def
2483 :    
2484 :     where cygwin.def is a file containing all the symbols that
2485 : blume 2155 we wish to export.
2486 : allenleung 1468
2487 : blume 2155 I suspect this is a Windows problem and we'll have to
2488 :     do the same (somehow with windows compilers) when
2489 : allenleung 1468 we build the native win32 version with the system
2490 : blume 2155 calls LoadLibrary/GetProcAddress.
2491 : allenleung 1468
2492 :     ----------------------------------------------------------------------
2493 : mblume 1384 Name: Matthias Blume (blume (at) tti - c (dot) org)
2494 : mblume 1465 Date: 2004/03/04 16:35:00 CST
2495 :     Tag: blume-20040304-intinf-fmt
2496 :     Description:
2497 :    
2498 :     Fixed problem with IntInf.fmt (sign would show up on the right instead
2499 :     of on the left for BIN, OCT, and HEX).
2500 :    
2501 :     ----------------------------------------------------------------------
2502 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2503 : mblume 1464 Date: 2004/03/04 11:25:00 CST
2504 :     Tag: blume-20040304-symlinks
2505 :     Description:
2506 :    
2507 :     Fixed problem with installer script (unix only) where bin/ml-yacc and
2508 :     friends pointed (via symlinks) to absolute locations instead of just
2509 :     .run-sml. This was reported by Vesa A Norrman.
2510 :    
2511 :     ----------------------------------------------------------------------
2512 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2513 : mblume 1455 Date: 2004/02/13 14:50:00 CST
2514 :     Tag: Release_110_45
2515 :     Description:
2516 :    
2517 :     New working version (110.45). New bootfiles.
2518 :    
2519 :     ----------------------------------------------------------------------
2520 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2521 : mblume 1448 Date: 2004/01/26 15:15:15 CST
2522 :     Tag: blume-20040126-toplevel
2523 :     Description:
2524 :    
2525 :     Improved handling of exceptions at the interactive toplevel.
2526 :    
2527 :     ----------------------------------------------------------------------
2528 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2529 :     Date: 2004/01/26 11:25:00
2530 : mblume 1446 Tag: blume-20040126-app
2531 :     Description:
2532 :    
2533 :     Type of top-level "app" corrected.
2534 : mblume 1447 Added code for setting vp_limitPtrMask to Win32-specific runtime.
2535 : mblume 1446
2536 :     ----------------------------------------------------------------------
2537 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2538 : mblume 1427 Date: 2003/11/18 17:10 CST
2539 :     Tag: blume-20031118-basis-fiddle
2540 :     Description:
2541 :    
2542 :     - changed Timer interface to what might become the spec
2543 :     - POSIX_FLAGS -> BIT_FLAGS according to spec
2544 :     - some other minor discrepancies wrt. spec eliminated
2545 :    
2546 :     ----------------------------------------------------------------------
2547 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2548 : mblume 1414 Date: 2003/11/06 12:00:00 CST
2549 :     Tag: Release_110_44
2550 :     Description:
2551 :    
2552 :     New working version (110.44). New bootfiles.
2553 :    
2554 :     ----------------------------------------------------------------------
2555 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2556 : mblume 1411 Date: 2003/11/04 11:50:00 CST
2557 :     Tag: blume-20031104-move-libraries
2558 :     Description:
2559 :    
2560 :     Eliminated the "dont_move_libraries" directive in config/targets.
2561 :     (The mechanism was broken and could not be fixed easily. Moreover,
2562 :     there does not seem to be any reason not to move all libraries into
2563 :     lib during installation. I originally implemented this directive as a
2564 :     backward-compatibility feature when I first introduced the new CM.
2565 :     Now that things have been stable for a long time and going back to the
2566 :     old CM is not an option, there is no reason to keep it around.)
2567 :    
2568 :     ----------------------------------------------------------------------
2569 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2570 : mblume 1409 Date: 2003/11/03 16:00:00 CST
2571 :     Tag: blume-20031103-installdir
2572 :     Description:
2573 :    
2574 :     Made installer honor INSTALLDIR variable again. (Thanks to Chris
2575 :     Richards for pointing out the problem and providing the solution.)
2576 :    
2577 :     ----------------------------------------------------------------------
2578 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2579 : mblume 1400 Date: 2003/10/01 17:05:00 CDT
2580 :     Tag: blume-20031001-lal-mlrisc
2581 :     Description:
2582 :    
2583 :     MLRISC bug fix from Lal.
2584 :    
2585 :     ----------------------------------------------------------------------
2586 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2587 : mblume 1399 Date: 2003/09/30 16:10:00 CDT
2588 :     Tag: blume-20030930-primio-bat
2589 : mblume 1398 Description:
2590 :    
2591 :     1. Added openVector, nullRd, and nullWr to PRIM_IO.
2592 :     2. Improved .bat files (for Win32 port) to make things work under Win95.
2593 :     (thanks to Aaron S. Hawley for this one)
2594 :    
2595 :     ----------------------------------------------------------------------
2596 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2597 : mblume 1395 Date: 2003/09/26 16:05:00 CDT
2598 :     Tag: blume-20030926-wrappriv
2599 :     Description:
2600 :    
2601 :     Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
2602 :    
2603 :     ----------------------------------------------------------------------
2604 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2605 : mblume 1394 Date: 2003/09/26 15:00:00 CDT
2606 :     Tag: blume-20030926-110_43_3
2607 :     Description:
2608 :    
2609 :     - additional cleanup
2610 :     - version number bump, NEW BOOTFILES
2611 :    
2612 :     ----------------------------------------------------------------------
2613 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2614 : mblume 1393 Date: 2003/09/26 12:00:00 CDT
2615 :     Tag: blume-20030926-ppautoload
2616 :     Description:
2617 :    
2618 :     I modified the read-eval-print loop so that the autoloader gets
2619 :     invoked whenever the prettyprinter tries to look up a symbol that
2620 :     is not currently defined in the toplevel environment but which
2621 :     appears in CM's autoload registry. As a result, we see far fewer of
2622 :     those ?.Foo.Bar.xxx names in the prettyprinter's output.
2623 :    
2624 :     In addition to this I tried to clean up some pieces of the Basis
2625 :     implementation (e.g., Socket, Word8Array) in order to prevent other
2626 :     instances of these ?.Foo.Bar.xxx names from being printed.
2627 :    
2628 :     The mechanism that picks names for types still needs some work, though.
2629 :     (Right now it seems that if there is a type A.t which is defined to
2630 : mblume 1394 be B.u, but B is unavailable at toplevel, then A.t gets printed as
2631 :     "?.B.u" although the perhaps more sensible solution would be to use
2632 : mblume 1393 "A.t" in this case. In other words, the prettyprinter should follow
2633 :     a chain of DEFtycs not farther than there are corresponding toplevel
2634 :     names in the current environment.)
2635 :    
2636 :     ----------------------------------------------------------------------
2637 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2638 : mblume 1391 Date: 2003/09/24 16:31:00 CDT
2639 :     Tag: blume-20030924-installer
2640 :     Description:
2641 :    
2642 :     Another installer tweak: All the ML code for the installer is now
2643 :     compiled during CMB.make and put into a little library called
2644 :     $smlnj/installer.cm. The installation then simply invokes
2645 :    
2646 :     sml -m $smlnj/installer.cm
2647 :    
2648 :     and everything happens automagically.
2649 :    
2650 :     Win32: ML code senses value of environment variable SMLNJ_HOME.
2651 :     Unix: ML code senses values of environment variables ROOT, CONFIGDIR,
2652 :     and BINDIR.
2653 :    
2654 :     The new scheme guarantees that the ML code responsible for the installation
2655 :     is in sync with the APIs of the main system. Also, the installer is
2656 :     somewhat faster because the installer script is precompiled.
2657 :    
2658 :     ----------------------------------------------------------------------
2659 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2660 : mblume 1390 Date: 2003/09/24 15:35:00 CDT
2661 :     Tag: blume-20030924-synsock
2662 :     Description:
2663 :    
2664 :     Added a signature SYNCHRONOUS_SOCKET to basis.cm. This is like SOCKET
2665 :     but excludes all non-blocking operations. Defined SOCKET (in Basis)
2666 :     and CML_SOCKET in terms of SYNCHRONOUS_SOCKET. Removed superfluous
2667 :     implementations of non-blocking operations from CML's Socket
2668 :     structure.
2669 :    
2670 :     ----------------------------------------------------------------------
2671 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2672 : mblume 1389 Date: 2003/09/24 15:10:05 CDT
2673 :     Tag: blume-20030924-sockets
2674 :     Description:
2675 :    
2676 :     1. Fixed SOCKET API and implementation to match Basis spec.
2677 :     This required changing the internal representation of sockets to one
2678 :     that remembers (for each socket file descriptor) whether it is currently
2679 :     blocking or non-blocking. This state is maintained lazily (i.e., a system
2680 :     call is made only if the state actually needs to change).
2681 :    
2682 :     2. OS-specific details of sockets were moved into separate files, thus
2683 :     making it possible to unify the bulk of the socket implementations
2684 :     between Unix and Win32.
2685 :    
2686 :     3. CML's socket API changed accordingly.
2687 :     (Note that we need to remove non-blocking functions from this API
2688 :     since they are redundant in the case of CML!)
2689 :    
2690 :     4. CML's socket implementation now makes use of non-blocking functions
2691 :     provided by Basis, thus removing all OS-dependent code from this part
2692 :     of CML.
2693 :    
2694 :     5. Changed Real64.precision from 52 to 53. Minor cleanup in Real64 code.
2695 :    
2696 :     ----------------------------------------------------------------------
2697 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2698 : mblume 1387 Date: 2003/09/22 12:10:00 CDT
2699 : mblume 1388 Tag: blume-20030922-110_43_2
2700 : mblume 1387 Description:
2701 :    
2702 :     Made a new interim version and bootfiles for developer's bootstrapping
2703 :     convenience.
2704 :    
2705 :     110.43.2 -- NEW BOOTFILES
2706 :    
2707 :     ----------------------------------------------------------------------
2708 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2709 : mblume 1385 Date: 2003/09/19 15:55:00 CDT
2710 :     Tag: blume-20030919-cmdir
2711 :     Description:
2712 :    
2713 :     1. new-install.sh -> install.sh
2714 :     2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
2715 :     3. tweaked installer so that another name instead of .cm can be chosen
2716 :     at install time (by setting the CM_DIR_ARC environment variable
2717 :     during installation); once installation is complete, the name is
2718 :     fixed
2719 :    
2720 :     ----------------------------------------------------------------------
2721 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2722 : mblume 1384 Date: 2003/09/18 16:00:00 CDT
2723 :     Tag: blume-20030918-110_43_1
2724 :     Description:
2725 :    
2726 :     Made a new interim version and bootfiles for developer's bootstrapping
2727 :     convenience.
2728 :    
2729 :     110.43.1 -- NEW BOOTFILES
2730 :    
2731 :     ----------------------------------------------------------------------
2732 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2733 : mblume 1383 Date: 2003/09/18 15:20:00 CDT
2734 :     Tag: blume-20030918-misc
2735 :     Description:
2736 :    
2737 :     1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
2738 :     this seems to be controversial at the moment) and used those in
2739 :     Posix.ProcEnv.times.
2740 :    
2741 :     2. Added Time.{from,to}Nanoseconds to Time.
2742 :    
2743 :     3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
2744 :     For example, fromLargeInt never needs to look at more than 3 "big
2745 :     digits" to get its 53 bits of precision.
2746 :    
2747 :     ----------------------------------------------------------------------
2748 : mblume 1384 Name: Matthias Blume (blume (at) tti - c (dot) org)
2749 : mblume 1381 Date: 2003/09/17 16:30:00 CDT
2750 :     Tag: blume-20030917-real32-slices
2751 :     Description:
2752 :    
2753 :     Added an entry to the primitive environment
2754 :     (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
2755 :     added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
2756 :    
2757 :     Removed some of the "magic" constants in real64.sml and replaced them
2758 :     with code that generates these values from their corresponding
2759 :     integer counterparts.
2760 :    
2761 :     Made all(?) the slice-related changes to the Basis and made everything
2762 :     compile again...
2763 :    
2764 :     ----------------------------------------------------------------------
2765 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2766 : mblume 1375 Date: 2003/09/15 17:45:00 CDT
2767 :     Tag: blume-20030915-rbase
2768 :     Description:
2769 :    
2770 :     Fixed bug in Real.fromLargeInt.
2771 :    
2772 :     ----------------------------------------------------------------------
2773 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2774 : mblume 1369 Date: 2003/09/13 18:11:00 CDT
2775 :     Tag: blume-20030913-libinstall
2776 :     Description:
2777 :    
2778 :     Minor bugfix in config/libinstall (set anchor with path to
2779 :     standalone tool after installing it, otherwise libraries that
2780 :     need ml-lex or ml-yacc won't compile the first time the installer
2781 :     runs).
2782 :    
2783 :     ----------------------------------------------------------------------
2784 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2785 : mblume 1368 Date: 2003/09/12 11:45:00 CDT
2786 :     Tag: blume-20030912-various
2787 :     Description:
2788 :    
2789 :     - fixed bug in Real.toLargeInt
2790 :     - fixed bug in Posix.ProcEnv.times
2791 :     - changed inputLine functions to return an option
2792 :     - minor installer improvements / bugfixes
2793 :     - changed default @SMLalloc parameter for x86/celeron to 64k
2794 :    
2795 :     ----------------------------------------------------------------------
2796 :     Name: Matthias Blume (blume (at) tti - c (dot) org)
2797 : mblume 1356 Date: 2003/09/09 22:00:00 CDT
2798 :     Tag: Release_110_43
2799 :     Description:
2800 :    
2801 :     New working release 110.43. New bootfiles.
2802 :    
2803 :     ----------------------------------------------------------------------
2804 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2805 : mblume 1354 Date: 2003/09/09 19:20:00 CDT
2806 :     Tag: blume-20030909-installer
2807 :     Description:
2808 :    
2809 :     Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
2810 :     Modified config/install.bat to take advantage of it. Also modified
2811 :     config/install.sh (and called it config/new-install.sh) to take advantage
2812 :     of it on Unix systems. (The SML code is (supposed to be) platform-
2813 :     independent.)
2814 :    
2815 :     The installer can now install everything under Win32
2816 :     as well as under *nix as long as it compiles.
2817 :    
2818 :     Other changes:
2819 :    
2820 :     - made CML compile again under Win32
2821 :     - made eXene compile under Win32 (by providing a fake structure UnixSock
2822 :     and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
2823 :     - fixed a bug in nowhere: it assumed that type OS.Process.status is the
2824 :     same as type int; under Win32 it isn't
2825 :     - fixed some slice-related problems in the win32-specific parts of CML
2826 :     - added a functor argument "sameVol" to os-path-fn.sml in the Basis
2827 :     (under Win32, the volume name is case-insensitive, and the
2828 :     OS.Path code compares volume names for equality)
2829 :    
2830 :     ----------------------------------------------------------------------
2831 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2832 : mblume 1353 Date: 2003/09/08 11:55:00 CDT
2833 :     Tag: blume-20030908-fullpath
2834 :     Description:
2835 :    
2836 :     Made Win32 version of OS.FileSys.fullPath return current directory
2837 :     when given an empty string. This is what the spec says, and incidentally,
2838 :     CM depends on it. (CM otherwise goes into an infinite loop in certain
2839 :     cases when presented with the name of a non-existing .cm file.)
2840 :    
2841 :     ----------------------------------------------------------------------
2842 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2843 : mblume 1350 Date: 2003/09/04 16:30:00 CDT
2844 : mblume 1352 Tag: blume-20030905-slices-etc
2845 : mblume 1350 Description:
2846 :    
2847 :     1. Changed interface to vectors and arrays in Basis to match
2848 :     (draft) Basis spec.
2849 :     2. Added signatures and implementations of slices according to
2850 :     Basis spec.
2851 :     3. Edited source code throughout the system to make it compile again
2852 :     under 1. and 2. (In some cases code had to be added to have it
2853 :     match the new signatures.)
2854 :     4. MLRISC should be backward-compatible: the copies of the originals
2855 :     of files that needed to change under 3. were retained, the .cm files
2856 :     check the compiler version number and use old versions when
2857 :     appropriate.
2858 :     5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
2859 :     dirstream -> string option (in accordance with Basis spec).
2860 :     6. When generating code that counts lines, ml-lex used function
2861 :     CharVector.foldli, taking advantage of its old interface.
2862 :     This has been replaced with the corresponding code from
2863 :     CharVectorSlice. (html-lex must be re-lexed!)
2864 :     7. BitArray in smlnj-lib/Util has been extended/modified to match the
2865 :     new MONO_ARRAY signature. (Do we need BitArraySlice?)
2866 :     8. Removed temporary additions (fromInternal, toInternal) from the
2867 :     (now obsolete) IntInf in smlnj-lib/Util.
2868 :     9. Cleaned up structure Byte.
2869 :     10. Added localOffset, scan, and fromString to Date (according to spec).
2870 :     Cleaned/corrected implementation of Date.
2871 :     (Still need to check for correctness; implement better canonicalizeDate.)
2872 :     11. Added "scan" to signature IEEE_REAL.
2873 :     12. Some improvements to IntInf [in particular: efficiency-hack for
2874 :     mod and rem when second operand is 2 (for parity checks).]
2875 :     13. Changed representation of type Time.time, using a single IntInf.int
2876 :     value counting microseconds. This considerably simplified the
2877 :     implementation of structure Time. We now support negative time
2878 :     values; scan and fromString handle signs.
2879 :     14. Functor PrimIO now takes two additional arguments (VectorSlice and
2880 :     ArraySlice).
2881 :    
2882 :     ----------------------------------------------------------------------
2883 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2884 : mblume 1347 Date: 2003/08/28 17:00:00 CDT
2885 :     Tag: blume-20030828-intinf
2886 :     Description:
2887 :    
2888 :     This is a major update which comes with a version number bump
2889 :     (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
2890 :     and an implementation of IntInf in the Basis.
2891 :    
2892 :     There are a fairly large number of related changes and updates throughout
2893 :     the system:
2894 :    
2895 :     Basis:
2896 :     - Implemented IntInf.
2897 :     - Made LargeInt a projection of IntInf (by filtering through INTEGER).
2898 : mblume 1348 - Added some missing Real64 operations, most notably Real.toLargeInt.
2899 : mblume 1347 - Added FixedInt as a synonym for Int32.
2900 :    
2901 :     compiler:
2902 :     * Added support for a built-in intinf type.
2903 :     - literals
2904 :     - pattern matching
2905 :     - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
2906 :     - overloading on literals and operations
2907 :    
2908 :     This required adding a primitive type intinf, some additional
2909 :     primops, and implementations for several non-trivial intinf
2910 :     operations in Core. (The intinf type is completely abstract
2911 :     to the compiler; all operations get delegated back to the Core.)
2912 :    
2913 :     * Intinf equality is handled by polyequal. However, the compiler
2914 :     does not print its usual warning in this case (since polyequal
2915 :     is the right thing to do there).
2916 :    
2917 :     * Improved the organization of structure InlineT.
2918 :    
2919 :     * A word about conversion primops:
2920 :     If conversions involving intinf do not cancel out during
2921 : mblume 1348 CPS contract, then the compiler must insert calls to Core functions.
2922 : mblume 1347 Since all core access must be resolved already during the FLINT
2923 :     translate phase, it would be too late a the time of CPS contract
2924 : mblume 1348 to add new Core calls. For this reason, conversion primops
2925 : mblume 1347 for intinf carry two arguments: 1. the numeric argument that
2926 :     they are supposed to convert, and 2. the Core function that
2927 :     can help with this conversion if necessary. If CPS contract
2928 : mblume 1348 eliminates a primop, then the associated Core function becomes
2929 :     dead and goes away. Intinf conversion primops that do not get
2930 :     eliminated by CPS contract get rewritten into calls of their
2931 :     core functions by a separate, new phase.
2932 : mblume 1347
2933 :     interactive system:
2934 :     - Control.Print.intinfDepth controls max length of intinf constants
2935 :     being printed. (Analogous to Control.Print.stringDepth.)
2936 :     - Cleanup in printutil and pputil: got rid of unused stuff and
2937 :     duplicates; replaced some of the code with code that makes better
2938 :     use of library functionality.
2939 :    
2940 :     CM:
2941 :     Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
2942 :     are no longer silent.
2943 :    
2944 :     CKIT:
2945 :     Fixed mismatched uses of Int32 and LargeInt. I always decided
2946 :     in favor of LargeInt -- which is now the same as IntInf.
2947 :     CKIT-knowledgable people should check whether this is what's
2948 :     intended and otherwise change things back to using Int32 or
2949 :     FixedInt.
2950 :    
2951 :     Throughout the code:
2952 : mblume 1348 Started using IntInf.int literals and built-in operations
2953 : mblume 1347 (e.g., comparison with 0) where this seems appropriate.
2954 :    
2955 :    
2956 :     ----------------------------------------------------------------------
2957 : macqueen 1343 Name: Dave MacQueen (dbm@cs.uchicago.edu)
2958 :     Date: 2003/08/13 11:36:00 CDT
2959 :     Tag: dbm-20030813-mcz-merge1
2960 :     Description:
2961 :    
2962 :     Merging changes from the mcz-branch development branch into trunk.
2963 :     These changes involve replacement of the emulated old prettyprinter
2964 :     interface with direct use of the SML/NJ Lib PP library, and fixing
2965 :     of a couple of bugs (895, 1186) relating to error messages. A new
2966 :     prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
2967 :     has been added.
2968 :    
2969 :     ----------------------------------------------------------------------
2970 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
2971 : mblume 1342 Date: 2003/08/11 15:45:00 CDT
2972 :     Tag: blume-20030811-windows
2973 :     Description:
2974 :    
2975 :     Version number bumped to 110.42.9. NEW BOOTFILES!!!
2976 :    
2977 :     http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
2978 :    
2979 :     This patch restores SML/NJ's ability to run under win32. There are a
2980 :     number of changes, including fixes for several bugs that had gone
2981 :     unnoticed until now:
2982 :    
2983 :     - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
2984 :     trying to run the win32 version from within cygwin.)
2985 :    
2986 :     - There are a number of simple .bat scripts that substitute for their
2987 :     corresponding Unix shell-scripts. (See below.)
2988 :    
2989 :     - The internals of ml-build have been modified slightly. The main
2990 :     difference is that instead of calling ".link-sml" (or link-sml.bat)
2991 :     using OS.Process.system, the ML process delegates this task back
2992 :     to the script. Otherwise problems arise in mixed environments such
2993 :     as Cygwin where scripts look and work like Unix scripts, but
2994 :     where OS.Process.system cannot run them.
2995 :    
2996 :     - In CM, the srcpath pickler used native pathname syntax -- which
2997 :     is incorrect in the case of cross-compilation. The new pickle format
2998 :     is independent of platform-specific naming conventions.
2999 :    
3000 :     - Path configuration files (such as lib/pathconfig) can now choose
3001 :     between native and standard syntax. Placing a line of the form
3002 :    
3003 :     standard!
3004 :    
3005 :     into the file causes all subsequent paths to be interpreted using
3006 :     CM standard pathname syntax (= Unix conventions); a line
3007 :    
3008 :     native!
3009 :    
3010 :     switches back to native style. This was needed so that
3011 :     path config files can be written portably, see src/system/pathconfig.
3012 :    
3013 :     - Runtime system:
3014 :    
3015 :     - win32-filesys.c: get_file_time and set_file_time now
3016 :     access modification time, not creation time.
3017 :    
3018 :     - I/O code made aware of new array representation.
3019 :    
3020 :     - Bug fixes in X86.prim.masm.
3021 :    
3022 :     - src/system/makeml made aware of win32. (For use under cygwin
3023 :     and other Unix-environments for windows.)
3024 :    
3025 :     - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
3026 :     which caused BinIO.inputAll to fail consistently.
3027 :    
3028 :     .bat scripts:
3029 :    
3030 :     Windows .bat scripts assume that SMLNJ_HOME is defined.
3031 :    
3032 :     - sml.bat, ml-yacc.bat, ml-lex.bat: Driver scripts for standalone
3033 :     applications (sml, ml-yacc, ml-lex).
3034 :     - ml-build.bat: analogous to ml-build.
3035 :     - config\install.bat: Analogous to config/install.sh. This requires
3036 :     that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
3037 :     (nmake etc. must be on the path, and vcvars32 must have been run.)
3038 :     Moreover, sources for ml-lex and ml-yacc need to exist under src,
3039 :     and the bootfile hierarchy must have been unpacked under
3040 :     sml.boot.x86-win32.
3041 :     The script is very primitive and does a poor job at error checking.
3042 :     It only installs the base system, ml-lex, and ml-yacc. No other
3043 :     libraries are being installed (i.e., you get only those that
3044 :     are part of the compiler.)
3045 :     - link-sml.bat: analogous to .link-sml, but not currently used
3046 :    
3047 :     Unrelated bug fixes:
3048 :    
3049 :     - ml-nlffigen now exports structures ST_* corresponding to incomplete
3050 :     types.
3051 :     - Added getDevice to PP/src/pp-debug-fn.sml. (Would not compile
3052 :     otherwise.)
3053 :    
3054 :     ----------------------------------------------------------------------
3055 : macqueen 1337 Name: Dave MacQueen (macqueen@cs.uchicago.edu)
3056 :     Date: 2003/06/17
3057 :     Tag: macqueen-20030617-bug895
3058 :     Description:
3059 :    
3060 :     Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
3061 :     Tag will be used for new development branch (mcz-branch) for
3062 :     use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
3063 :    
3064 :     ----------------------------------------------------------------------
3065 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
3066 : mblume 1335 Date: 2003/05/27 16:55:00 CDT
3067 :     Tag: blume-20030527-polyeq
3068 :     Description:
3069 :    
3070 :     Tried to eliminated most cases of polymorphic equality.
3071 :    
3072 :     ----------------------------------------------------------------------
3073 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
3074 : mblume 1334 Date: 2003/05/21 17:45:00 CDT
3075 :     Tag: blume-20030517-complete
3076 :     Description:
3077 :    
3078 :     Two changes:
3079 :    
3080 :     1. Added a flag for controlling whether non-exhaustive bindings will
3081 :     be treated as errors (default is false).
3082 :     2. Cleaned up the *entire* source tree so that CMB.make goes through
3083 :     without a single non-exhaustive match- or bind warning.
3084 :    
3085 :     ----------------------------------------------------------------------
3086 : mblume 1368 Name: Matthias Blume (blume (at) tti - c (dot) org)
3087 : mblume 1332 Date: 2003/05/17 10:20:00 CDT
3088 :     Tag: blume-20030517-absyn
3089 :     Description:
3090 :    
3091 :     1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
3092 :    
3093 :     This mainly affects the quality of error messages. However, some
3094 :     of the code is now more straightforward than before. (Treatment of
3095 :     the above four constructs in translate.sml is much simpler than
3096 :     the "macro-expansion" that was going on before. Plus, the mach-
3097 :     compiler no longer gets invoked just to be able to compile an
3098 :     if-expression.)
3099 :    
3100 :     2. The ErrorMsg.Error exception is now caught and absorbed by the
3101 :     interactive loop.
3102 :    
3103 :     ----------------------------------------------------------------------
3104 : allenleung 1327 Name: Allen Leung
3105 :     Date: 2003/05/16 13:05:00 CDT
3106 :     Tag: leunga-20030516-cygwin-runtime
3107 :     Description:
3108 :    
3109 : blume 2155 Ported the runtime system to cygwin, which uses the unix
3110 : allenleung 1327 x86-unix bin files. Missing/buggy features:
3111 :    
3112 : blume 2155 o getnetbyname, getnetbyaddr: these functions seem to be missing in
3113 : allenleung 1327 the Cygwin library.
3114 :     o Ctrl-C handling may be flaky.
3115 :     o Windows system calls and Windows I/O are not supported.
3116 :    
3117 :     A new set of binfiles is located at:
3118 :    
3119 :     http://www.dorsai.org/~leunga/boot.x86-unix.tgz
3120 :    
3121 :     This is only needed for bootstrapping the cygwin version of smlnj.
3122 :     Other x86 versions can use the existing binfiles.
3123 :    
3124 :     ----------------------------------------------------------------------
3125 : mblume 1317 Name: Matthias Blume
3126 :     Date: 2003/04/08 15:42:00 CDT
3127 :     Tag: blume-20030408-listpair
3128 :     Description:
3129 :    
3130 :     1. Added a target 'mlrisc' to installer.
3131 :    
3132 :     2. Added missing elements to structure ListPair.
3133 :    
3134 :     ----------------------------------------------------------------------
3135 : leunga 1296 Name: Allen Leung
3136 :     Date: 2003/01/07 10:40:00 EST
3137 :     Tag: leunga-20030107-int-rem
3138 :     Description:
3139 :    
3140 :     Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
3141 :     The arguments to the SUBL instruction were swapped.
3142 :    
3143 :     ----------------------------------------------------------------------
3144 : blume 1229 Name: Matthias Blume
3145 : blume 1294 Date: 2002/12/12 16:25:00 EST
3146 :     Tag: blume-20021212-risc-ra
3147 :     Description:
3148 :    
3149 :     Fixed a serious bug in the rewrite code for FP spilling/reloading that
3150 :     sent the RA into an infinite loop when floating point registers get
3151 :     spilled. (Because of this bug, e.g., nucleic stopped compiling between
3152 :     110.37 and 110.38.)
3153 :     There was another set of potential problems related to the handling of
3154 :     MLRISC annotations (but those did not yet cause real problems, apparently).
3155 :    
3156 :     ----------------------------------------------------------------------
3157 :     Name: Matthias Blume
3158 : blume 1291 Date: 2002/12/06 22:40:00 EST
3159 :     Tag: blume-20021206-cm-fileid
3160 :     Description:
3161 :    
3162 :     Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
3163 :     This fixes the problem of CM getting confused by files that suddenly
3164 :     change their identity (e.g., by getting unlinked and recreated by some
3165 :     text editor such as vi). There might be a better/cheaper/cleaner way
3166 :     of doing this, but for now this will have to do.
3167 :    
3168 :     ----------------------------------------------------------------------
3169 :     Name: Matthias Blume
3170 : blume 1288 Date: 2002/10/28 09:50:00 EST
3171 : blume 2155 Tag: blume-20021028-typecheck
3172 : blume 1288 Description:
3173 :    
3174 :     Exported structure Typecheck from $smlnj/viscomp/core.cm.
3175 :    
3176 :     ----------------------------------------------------------------------
3177 :     Name: Matthias Blume
3178 : blume 1282 Date: 2002/10/17 09:10:00 EDT
3179 : blume 1279 Tag: Release_110_42
3180 :     Description:
3181 :    
3182 : blume 1282 In good old tradition, there has been a slight hiccup so that we have
3183 :     to patch 110.42 after the fact. The old release tag has been replaced
3184 :     (see below).
3185 :    
3186 :     The change solves a problem with two competing approaches the
3187 :     configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
3188 :     each other's way.
3189 :    
3190 :     This change only affects the runtime system code and the installer script.
3191 :     (No new bootfiles.)
3192 :    
3193 :     ----------------------------------------------------------------------
3194 :     Name: Matthias Blume
3195 :     Date: 2002/10/16 12:00:00 EDT
3196 :     Tag: Release_110_42_removed
3197 :     Description:
3198 :    
3199 : blume 1279 New working release. New bootfiles.
3200 :    
3201 :     ----------------------------------------------------------------------
3202 :     Name: Matthias Blume
3203 : blume 1273 Date: 2002/10/10 13:10:00 EDT
3204 :     Tag: blume-20021010-ppc-divs
3205 :     Description:
3206 :    
3207 :     The mltree operator DIVS must be implemented with an overflow check on
3208 :     the PPC because the hardware indicates divide-by-zero using "overflow" as
3209 :     well.
3210 :    
3211 :     ----------------------------------------------------------------------
3212 :     Name: Matthias Blume
3213 : blume 1261 Date: 2002/07/23 11:45:00
3214 :     Tag: blume-20020723-smlnj-home
3215 :     Description:
3216 :    
3217 :     Sml now senses the SMLNJ_HOME environment variable. If this is set,
3218 :     then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
3219 :     CM_PATHCONFIG is also set), the path configuration file is assumed
3220 :     to be in $SMLNJ_HOME/lib/pathconfig. This way one can easily move
3221 :     the entire tree to some other place and everything will "just work".
3222 :    
3223 :     (Companion commands such as ml-build and ml-makedepend also sense this
3224 :     variable.)
3225 :    
3226 :     ----------------------------------------------------------------------
3227 :     Name: Matthias Blume
3228 : blume 1259 Date: 2002/07/12 21:19:00 EDT
3229 :     Tag: blume-20020712-liveness
3230 :     Description:
3231 :    
3232 :     Exported two useful "step" functions from liveness module (MLRISC).
3233 :    
3234 :     ----------------------------------------------------------------------
3235 :     Name: Matthias Blume
3236 : blume 1253 Date: 2002/07/05 16:00 EDT
3237 :     Tag: Release_110_41
3238 :     Description:
3239 :    
3240 :     New working release. New bootfiles.
3241 :    
3242 :     ----------------------------------------------------------------------
3243 :     Name: Matthias Blume
3244 : blume 1250 Date: 2002/07/05 10:25:00 EDT
3245 :     Tag: blume-20020705-btimp
3246 :     Description:
3247 :    
3248 :     Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
3249 :     other clients can set up backtracing support.
3250 :    
3251 :     ----------------------------------------------------------------------
3252 :     Name: Matthias Blume
3253 : blume 1249 Date: 2002/06/25 17:23:00 EDT
3254 :     Tag: blume-20020625-fpmax
3255 :     Description:
3256 :    
3257 :     Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
3258 :     case. (The sense of the isNaN test was reversed -- which made min and
3259 :     max always return their first argument.)
3260 :    
3261 :     ----------------------------------------------------------------------
3262 :     Name: Matthias Blume
3263 : blume 1240 Date: 2002/06/11
3264 :     Tag: blume-20020611-unixpath
3265 :     Description:
3266 :    
3267 :     Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
3268 :    
3269 :     ----------------------------------------------------------------------
3270 :     Name: Matthias Blume
3271 : blume 1238 Date: 2002/06/10 16:35:00 EDT
3272 :     Tag: blume-20020610-ieeereal
3273 :     Description:
3274 :    
3275 :     I back-ported my implementation of IEEEReal.fromString from the
3276 :     idlbasis-devel branch so that we can test it.
3277 :    
3278 :     Another small change is that ppDec tries to give more information
3279 :     than just "<sig>" in the case of functors. However, this code is
3280 :     broken in some mysterious way if the functor's body's signature
3281 :     has not been declared by ascription but gets inferred from the
3282 :     implementation. This needs fixing...
3283 :    
3284 :     ----------------------------------------------------------------------
3285 :     Name: Matthias Blume
3286 : blume 1229 Date: 2002/05/31
3287 :     Tag: blume-20020531-btrace-mode
3288 :     Description:
3289 :    
3290 :     Resurrected SMLofNJ.Internals.BTrace.mode. (It accidentally fell by
3291 :     the wayside when I switched over to using Controls everywhere.)
3292 :    
3293 :     ----------------------------------------------------------------------
3294 : george 1222 Name: Lal George
3295 :     Date: 2002/05/23 12:21:40 EDT
3296 :     Tag: george-20020523-visual-labels
3297 :     Description:
3298 :    
3299 :     Labels are now displayed in the graphical output to make
3300 :     the fall-through and target blocks obvious.
3301 :    
3302 :     ----------------------------------------------------------------------
3303 : blume 1204 Name: Matthias Blume
3304 : blume 1220 Date: 2002/05/22 11:03:00 EDT
3305 :     Tag: blume-20020522-shrink
3306 :     Description:
3307 :    
3308 :     John tweaked yesterday's fix for 1131 to handle an out-of-memory
3309 :     situation that comes up when allocating huge arrays.
3310 :    
3311 :     ----------------------------------------------------------------------
3312 :     Name: Matthias Blume
3313 : blume 1215 Date: 2002/05/21 16:00:00 EDT
3314 :     Tag: Release_110_40
3315 :     Description:
3316 :    
3317 :     New working release (110.40). New bootfiles.
3318 :    
3319 :     [Also: John Reppy fixed GC bug 1131.]
3320 :    
3321 :     ----------------------------------------------------------------------
3322 :     Name: Matthias Blume
3323 : blume 1212 Date: 2002/05/21 12:35:00 EDT
3324 :     Tag: blume-20020521-cmdoc
3325 :     Description:
3326 :    
3327 :     CM documentation update.
3328 :    
3329 :     ----------------------------------------------------------------------
3330 :     Name: Matthias Blume
3331 : blume 1211 Date: 2002/05/21 10:55:00 EDT
3332 :     Tag: blume-20020521-misc
3333 :     Description:
3334 :    
3335 :     - John tweaked runtime to be silent on heap export (except when
3336 :     GC messages are on).
3337 :     - I added a few more things (cross-compiling versions of CMB) to
3338 :     config/preloads (as suggestions).
3339 :    
3340 :     ----------------------------------------------------------------------
3341 :     Name: Matthias Blume
3342 : blume 1208 Date: 2002/05/20 22:25:00 EDT
3343 :     Tag: blume-20020520-controls
3344 :     Description:
3345 :    
3346 :     - Added ControlUtil structure to control-lib.cm.
3347 :     - Use it throughout.
3348 :     - Used Controls facility to define MLRISC controls (as opposed to
3349 :     registering MLRISC control ref cells with Controls after the fact)
3350 :     - Fixed messed-up controls priorities.
3351 :    
3352 :     * Removed again all the stuff from config/preloads that one wouldn't
3353 :     be able to preload at the time the initial heap image is built.
3354 :     (Many libraries, e.g., CML, do not exist yet at this time. The
3355 :     only libraries that can be preloaded via config/preloads are those
3356 :     that come bundled with the bootfiles.)
3357 :    
3358 :     ----------------------------------------------------------------------
3359 :     Name: Matthias Blume
3360 : blume 1204 Date: 2002/05/20 10:59:00 EDT
3361 :     Tag: blume-20020520-preloads
3362 :     Description:
3363 :    
3364 :     Added a lot of commented-out suggestions for things to be included
3365 :     in config/preloads.
3366 :    
3367 :     ----------------------------------------------------------------------
3368 : leunga 1203 Name: Allen Leung
3369 :     Date: 2002/05/18 14:20:00 EDT
3370 :     Tag: leunga-20020518-mdl
3371 :     Description:
3372 :    
3373 :     o Made the mdl tool stuff compile and run again.
3374 :     o I've disabled all the stuff that depends on RTL specifications; they
3375 :     are all badly broken anyway.
3376 :    
3377 :     ----------------------------------------------------------------------
3378 : blume 1201 Name: Matthias Blume
3379 :     Date: 2002/05/17 16:49:00 EDT
3380 :     Tag: blume-20020517-controls
3381 :     Description:
3382 :    
3383 :     0. John Reppy made several modifications to the SML/NJ library.
3384 :     In particular, there is a shiny new controls-lib.cm.
3385 :    
3386 :     1. Pushed new controls interface through compiler so that everything
3387 :     compiles again.
3388 :    
3389 :     2. Added FormatComb and FORMAT_COMB to the CML version of the
3390 :     SML/NJ library (so that CML compiles again).
3391 :    
3392 :     3. Modified init scripts because XXX_DEFAULT environment variables
3393 :     are no longer with us. (Boot-time initialization is now done
3394 :     using the same environment variables that are also used for
3395 :     startup-time initialization of controls.)
3396 :    
3397 :     ----------------------------------------------------------------------
3398 : george 1192 Name: Lal George
3399 :     Date: 2002/05/15 09:20:10 EDT
3400 :     Tag: george-20020515-pseudo-op-decls
3401 :     Description:
3402 :    
3403 :     All pseudo-ops emitted before the first segment declaration
3404 :     such as TEXT, DATA, and BSS directives are assumed to be global
3405 :     declarations and are emitted first in the assembly file. This is
3406 :     useful in a number of situations where one has pseudo-ops that are not
3407 :     specific to any segment, and also works around the constraint that one
3408 :     cannot have client pseudo-ops in the TEXT segment.
3409 :    
3410 :     Because no segment is associated with these declarations it is
3411 :     an error to allocate any space or objects before the first segment
3412 :     directive and an exception will be raised. However, we cannot make
3413 :     this check for client pseudo-ops.
3414 :    
3415 :     These top level declarations are a field in the CFG graph_info.
3416 :     In theory you can continue to add to this field after the CFG has been
3417 :     built -- provided you know what you are doing;-)
3418 :    
3419 :     ----------------------------------------------------------------------
3420 : blume 1175 Name: Matthias Blume
3421 : blume 1190 Date: 2002/05/13 16:40:00 EDT
3422 :     Tag: blume-20020513-pp-etc
3423 :     Description:
3424 :    
3425 :     A few minor bugfixes:
3426 :    
3427 :     - Stopgap measure for bug recently reported by Elsa Gunter (ppDec).
3428 :     (Bogus printouts for redefined bindings still occur. Compiler
3429 :     bug should no longer occur now. We need to redo the prettyprinter
3430 :     from scratch.)
3431 :    
3432 :     - CM pathname printer now also adds escape sequences for ( and )
3433 :    
3434 :     - commend and docu fixes for ml-nlffi
3435 :    
3436 :     ----------------------------------------------------------------------
3437 :     Name: Matthias Blume
3438 : blume 1189 Date: 2002/05/10 16:40:00 EDT
3439 :     Tag: blume-20020510-erg-textio
3440 :     Description:
3441 :    
3442 :     Applied the following bugfix provided by Emden Gansner:
3443 :    
3444 :     Output is corrupted when outputSubstr is used rather than output.
3445 :    
3446 : blume 2155 The problem occurs when a substring
3447 : blume 1189
3448 :     ss = (s, dataStart, dataLen)
3449 :    
3450 : blume 2155 where dataStart > 0, fills a stream buffer with avail bytes left.
3451 :     avail bytes of s, starting at index dataStart, are copied into the
3452 : blume 1189 buffer, the buffer is flushed, and then the remaining dataLen-avail
3453 : blume 2155 bytes of ss are copied into the beginning of the buffer. Instead of
3454 :     starting this copy at index dataStart+avail in s, the current code
3455 : blume 1189 starts the copy at index avail.
3456 :    
3457 :     Fix:
3458 :     In text-io-fn.sml, change line 695 from
3459 :     val needsFlush = copyVec(v, avail, dataLen-avail, buf, 0)
3460 : blume 2155 to
3461 : blume 1189 val needsFlush = copyVec(v, dataStart+avail, dataLen-avail, buf, 0)
3462 :    
3463 :     ----------------------------------------------------------------------
3464 :     Name: Matthias Blume
3465 : blume 1186 Date: 2002/04/12 13:55:00 EDT
3466 :     Tag: blume-20020412-assyntax
3467 :     Description:
3468 :    
3469 :     1. Grabbed newer assyntax.h from the XFree86 project.
3470 :     2. Fiddled with how to compile X86.prim.asm without warnings.
3471 :     3. (Very) Minor cleanup in CM.
3472 :    
3473 :     ----------------------------------------------------------------------
3474 :     Name: Matthias Blume
3475 : blume 1185 Date: 2002/04/01 (no joke!) 17:07:00 EST
3476 :     Tag: blume-20020401-x86div
3477 :     Description:
3478 :    
3479 :     Added full support for div/mod/rem/quot on the x86, using the machine
3480 :     instruction's two results (without clumsily recomputing the remainder)
3481 :     directly where appropriate.
3482 :    
3483 :     Some more extensive power-of-two support was added to the x86 instruction
3484 :     selector (avoiding expensive divs, mods, and muls where they can be
3485 :     replaced with cheaper shifts and masks). However, this sort of thing
3486 :     ought to be done earlier, e.g., within the CPS optimizer so that
3487 :     all architectures benefit from it.
3488 :    
3489 :     The compiler compiles to a fixed point, but changes might be somewhat
3490 :     fragile nevertheless. Please, report any strange things that you might
3491 :     see wrt. div/mod/quot/rem...
3492 :    
3493 :     ----------------------------------------------------------------------
3494 :     Name: Matthias Blume
3495 : blume 1184 Date: 2002/03/29 17:22:00
3496 :     Tag: blume-20020329-div
3497 :     Description:
3498 :    
3499 :     Fixed my broken div/mod logic. Unfortunately, this means that the
3500 :     inline code for div/mod now has one more comparison than before.
3501 :     Fast paths (quotient > 0 or remainder = 0) are not affected, though.
3502 :     The problem was with quotient = 0, because that alone does not tell
3503 :     us which way the rounding went. One then has to look at whether
3504 :     remainder and divisor have the same sign... :(
3505 :    
3506 :     Anyway, I replaced the bootfiles with fresh ones...
3507 :    
3508 :     ----------------------------------------------------------------------
3509 :     Name: Matthias Blume
3510 : blume 1183 Date: 2002/03/29 14:10:00 EST
3511 :     Tag: blume-20020329-inlprims
3512 :     Description:
3513 :    
3514 :     NEW BOOTFILES!!! Version number bumped to 110.39.3.
3515 :    
3516 :     Primops have changed. This means that the bin/boot-file formats have
3517 :     changed as well.
3518 :    
3519 :     To make sure that there is no confusion, I made a new version.
3520 :    
3521 :    
3522 :     CHANGES:
3523 :    
3524 :     * removed REMT from mltree (remainder should never overflow).
3525 :    
3526 :     * added primops to deal with divisions of all flavors to the frontend
3527 :    
3528 :     * handled these primops all the way through so they map to their respective
3529 :     MLRISC support
3530 :    
3531 :     * used these primops in the implementation of Int, Int32, Word, Word32
3532 :    
3533 :     * removed INLDIV, INLMOD, and INLREM as they are no longer necessary
3534 :    
3535 :     * parameterized INLMIN, INLMAX, and INLABS by a numkind
3536 :    
3537 :     * translate.sml now deals with all flavors of INL{MIN,MAX,ABS}, including
3538 :     floating point
3539 :    
3540 :     * used INL{MIN,MAX,ABS} in the implementation of Int, Int32, Word, Word32,
3541 :     and Real (but Real.abs maps to a separate floating-point-only primop)
3542 :    
3543 :    
3544 :     TODO items:
3545 :    
3546 :     * Hacked Alpha32 instruction selection, disabling the selection of REMx
3547 :     instructions because the machine instruction encoder cannot handle
3548 :     them. (Hppa, PPC, and Sparc instruction selection did not handle
3549 :     REM in the first place, and REM is supported by the x86 machine coder.)
3550 :    
3551 :     * Handle DIV and MOD with DIV_TO_NEGINF directly in the x86 instruction
3552 :     selection phase. (The two can be streamlined because the hardware
3553 :     delivers both quotient and remainder at the same time anyway.)
3554 :    
3555 :     * Think about what to do with "valOf(Int32.minInt) div ~1" and friends.
3556 :     (Currently the behavior is inconsistent both across architectures and
3557 :     wrt. the draft Basis spec.)
3558 :    
3559 :     * Word8 should eventually be handled natively, too.
3560 :    
3561 :     * There seems to be one serious bug in mltree-gen.sml. It appears, though,
3562 :     as if there currently is no execution path that could trigger it in
3563 :     SML/NJ. (The assumptions underlying functions arith and promotable do not
3564 :     hold for things like multiplication and division.)
3565 :    
3566 :     ----------------------------------------------------------------------
3567 :     Name: Matthias Blume
3568 : blume 1181 Date: 2002/03/27 16:27:00 EST
3569 :     Tag: blume-20020327-mlrisc-divisions
3570 :     Description:
3571 :    
3572 :     Added support for all four division operations (ML's div, mod, quot,
3573 :     and rem) to MLRISC. In the course of doing so, I also rationalized
3574 :     the naming (no more annoying switch-around of DIV and QUOT), by
3575 :     parameterizing the operation by div_rounding_mode (which can be either
3576 :     DIV_TO_ZERO or DIV_TO_NEGINF).
3577 :    
3578 :     The generic MLTreeGen functor takes care of compiling all four
3579 :     operations down to only round-to-zero div.
3580 :    
3581 :     Missing pieces:
3582 :    
3583 :     * Doing something smarter than relying on MLTreeGen on architectures
3584 :     like, e.g., the x86 where hardware division delivers both quotient and
3585 :     remainder at the same time. With this, the implementation of the
3586 :     round-to-neginf operations could be further streamlined.
3587 :    
3588 :     * Remove inlining support for div/mod/rem from the frontend and replace it
3589 :     with primops that get carried through to the backend. Do this for all
3590 :     int and word types.
3591 :    
3592 :     ----------------------------------------------------------------------
3593 :     Name: Matthias Blume
3594 : blume 1180 Date: 2002/03/25 17:25:00 EST
3595 :     Tag: blume-20020325-divmod
3596 :     Description:
3597 :    
3598 :     I improved (hopefully without breaking them) the implementation of Int.div,
3599 :     Int.mod, and Int.rem. For this, the code in translate.sml now takes
3600 :     advantage of the following observations:
3601 :    
3602 :     Let q = x quot y r = x rem y
3603 :     d = x div y m = x mod y
3604 :    
3605 :     where "quot" is the round-to-zero version of integer division that
3606 :     hardware usually provides. Then we have:
3607 :    
3608 :     r = x - q * y where neither the * nor the - will overflow
3609 :     d = if q >= 0 orelse x = q * y then q else q - 1
3610 :     where neither the * nor the - will overflow
3611 :     m = if q >= 0 orelse r = 0 then r else r + y
3612 :     where the + will not overflow
3613 :    
3614 :     This results in substantial simplification of the generated code.
3615 :     The following table shows the number of CFG nodes and edges generated
3616 :     for
3617 :     fun f (x, y) = x OPER y
3618 :     (* with OPER \in div, mod, quot, rem *)
3619 :    
3620 :    
3621 :     OPER | nodes(old) | edges(old) | nodes(new) | edges(new)
3622 :     --------------------------------------------------------
3623 :     div | 24 | 39 | 12 | 16
3624 :     mod | 41 | 71 | 12 | 16
3625 :     quot | 8 | 10 | 8 | 10
3626 :     rem | 10 | 14 | 8 | 10
3627 :    
3628 :    
3629 :     ----------------------------------------------------------------------
3630 :     Name: Matthias Blume
3631 : blume 1179 Date: 2002/03/25 22:06:00 EST
3632 :     Tag: blume-20020325-cprotobug
3633 :     Description:
3634 :    
3635 :     Fixed a bug in cproto (c prototype decoder).
3636 :    
3637 :     ----------------------------------------------------------------------
3638 :     Name: Matthias Blume
3639 : blume 1178 Date: 2002/03/25 16:00:00 EST
3640 :     Tag: blume-20020325-raw-primops
3641 :     Description:
3642 :    
3643 :     I did some cleanup to Allen's new primop code and
3644 :     replaced yesterday's bootfiles with new ones.
3645 :     (But they are stored in the same place.)
3646 :    
3647 :     ----------------------------------------------------------------------
3648 :     Name: Matthias Blume
3649 : blume 1175 Date: 2002/03/24 22:40:00 EST
3650 :     Tag: blume-20020324-bootfiles
3651 :     Description:
3652 :    
3653 :     Made the bootfiles that Allen asked for.
3654 :    
3655 :     ----------------------------------------------------------------------
3656 : leunga 1174 Name: Allen Leung
3657 :     Date: 2002/03/23 15:50:00 EST
3658 :     Tag: leunga-20020323-flint-cps-rcc-primops
3659 :     Description:
3660 :    
3661 :     1. Changes to FLINT primops:
3662 :    
3663 :     (* make a call to a C-function;
3664 :     * The primop carries C function prototype information and specifies
3665 :     * which of its (ML-) arguments are floating point. C prototype
3666 :     * information is for use by the backend, ML information is for
3667 :     * use by the CPS converter. *)
3668 :     | RAW_CCALL of { c_proto: CTypes.c_proto,
3669 :     ml_args: ccall_type list,
3670 :     ml_res_opt: ccall_type option,
3671 :     reentrant : bool
3672 :     } option
3673 :     (* Allocate uninitialized storage on the heap.
3674 :     * The record is meant to hold short-lived C objects, i.e., they
3675 : blume 2155 * are not ML pointers. With the tag, the representation is
3676 : leunga 1174 * the same as RECORD with tag tag_raw32 (sz=4), or tag_fblock (sz=8)
3677 :     *)
3678 : blume 2155 | RAW_RECORD of {tag:bool,sz:int}
3679 : leunga 1174 and ccall_type = CCALL_INT32 | CCALL_REAL64 | CCALL_ML_PTR
3680 :    
3681 :     2. These CPS primops are now overloaded:
3682 :    
3683 :     rawload of {kind:numkind}
3684 :     rawstore of {kind:numkind}
3685 :    
3686 :     The one argument form is:
3687 :    
3688 :     rawload {kind} address
3689 :    
3690 :     The two argument form is:
3691 : blume 2155
3692 : leunga 1174 rawload {kind} [ml object, byte-offset]
3693 :    
3694 :     3. RAW_CCALL/RCC now takes two extra arguments:
3695 :    
3696 :     a. The first is whether the C call is reentrant, i.e., whether
3697 :     ML state should be saved and restored.
3698 :     b. The second argument is a string argument specifying the name of
3699 :     library and the C function.
3700 :    
3701 :     These things are currently not handled in the code generator, yet.
3702 :    
3703 :     4. In CProto,
3704 :    
3705 : blume 2155 An encoding type of "bool" means "ml object" and is mapped into
3706 :     C prototype of PTR. Note that "bool" is different than "string",
3707 : leunga 1174 even though "string" is also mapped into PTR, because "bool"
3708 :     is assigned an CPS type of BOGt, while "string" is assigned INT32t.
3709 :    
3710 :     5. Pickler/unpicker
3711 :    
3712 :     Changed to handle RAW_RECORD and newest RAW_CCALL
3713 :    
3714 :     6. MLRiscGen,
3715 :    
3716 :     1. Changed to handle the new rawload/rawstore/rawrecord operators.
3717 :     2. Code for handling C Calls has been moved to a new module CPSCCalls,
3718 :     in the file CodeGen/cpscompile/cps-c-calls.sml
3719 :    
3720 :     7. Added the conditional move operator
3721 :    
3722 :     condmove of branch
3723 :    
3724 : blume 2155 to cps. Generation of this is still buggy so it is currently
3725 : leunga 1174 disabled.
3726 : blume 2155
3727 : leunga 1174 ----------------------------------------------------------------------
3728 : george 1168 Name: Lal George
3729 : blume 2155 Date: 2002/03/22 14:18:25 EST
3730 : george 1171 Tag: george-20020322-cps-branch-prob
3731 : george 1168 Description:
3732 :    
3733 : blume 2155 Implemented the Ball-Larus branch prediction-heuristics, and
3734 : george 1168 incorporated graphical viewers for control flow graphs.
3735 :    
3736 : george 1171 Ball-Larus Heuristics:
3737 : george 1168 ---------------------
3738 :     See the file compiler/CodeGen/cpscompile/cpsBranchProb.sml.
3739 :    
3740 :     By design it uses the Dempster-Shafer theory for combining
3741 :     probabilities. For example, in the function:
3742 :    
3743 :     fun f(n,acc) = if n = 0 then acc else f(n-1, n*acc)
3744 :    
3745 :     the ball-larus heuristics predicts that the n=0 is unlikely
3746 :     (OH-heuristic), and the 'then' branch is unlikely because of the
3747 :     RH-heuristic -- giving the 'then' branch an even lower combined
3748 : george 1171 probability using the Dempster-Shafer theory.
3749 : george 1168
3750 :     Finally, John Reppy's loop analysis in MLRISC, further lowers the
3751 :     probability of the 'then' branch because of the loop in the else
3752 :     branch.
3753 :    
3754 :    
3755 :     Graphical Viewing:
3756 : blume 2155 ------------------
3757 : george 1168 I merely plugged in Allen's graphical viewers into the compiler. The
3758 :     additional code is not much. At the top level, saying:
3759 :    
3760 :     Control.MLRISC.getFlag "cfg-graphical-view" := true;
3761 :    
3762 :     will display the graphical view of the control flow graph just before
3763 :     back-patching. daVinci must be in your path for this to work. If
3764 :     daVinci is not available, then the default viewer can be changed
3765 :     using:
3766 :    
3767 :     Control.MLRISC.getString "viewer"
3768 :    
3769 :     which can be set to "dot" or "vcg" for the corresponding viewers. Of
3770 :     course, these viewers must be in your path.
3771 :    
3772 :     The above will display the compilation unit at the level of clusters,
3773 :     many of which are small, boring, and un-interesting. Also setting:
3774 :    
3775 :     Control.MLRISC.getInt "cfg-graphical-view_size"
3776 :    
3777 :     will display clusters that are larger than the value set by the above.
3778 :    
3779 : blume 2155
3780 : george 1168 ----------------------------------------------------------------------
3781 : blume 1159 Name: Matthias Blume
3782 :     Date: 2002/03/21 22:20:00 EST
3783 :     Tag: blume-20020321-kmp-bugfix
3784 :     Description:
3785 :    
3786 :     Changed the interface to the KMP routine in PreString and fixed
3787 :     a minor bug in one place where it was used.
3788 :    
3789 :     ----------------------------------------------------------------------
3790 : leunga 1156 Name: Allen Leung
3791 : leunga 1158 Date: 2002/03/21 20:30:00 EST
3792 :     Tag: leunga-20020321-cfg
3793 :     Description:
3794 :    
3795 :     Fixed a potential problem in cfg edge splitting.
3796 :    
3797 :     ----------------------------------------------------------------------
3798 :     Name: Allen Leung
3799 : leunga 1156 Date: 2002/03/21 17:15:00 EST
3800 :     Tag: leunga-20020321-x86-fp-cfg
3801 :     Description:
3802 :    
3803 : blume 2155 1. Recoded the buggy parts of x86-fp.
3804 : leunga 1156
3805 :     a. All the block reordering code has been removed.
3806 :     We now depend on the block placement phases to do this work.
3807 :    
3808 :     b. Critical edge splitting code has been simplified and moved into the
3809 :     CFG modules, as where they belong.
3810 :    
3811 :     Both of these were quite buggy and complex. The code is now much, much
3812 :     simpler.
3813 :    
3814 :     2. X86 backend.
3815 :    
3816 :     a. Added instructions for 64-bit support. Instruction selection for
3817 :     64-bit has not been committed, however, since that
3818 : blume 2155 requires changes to MLTREE which haven't been approved by
3819 : leunga 1156 Lal and John.
3820 :    
3821 : blume 2155 b. Added support for FUCOMI and FUCOMIP when generating code for
3822 : leunga 1156 PentiumPro and above. We only generate these instructions in
3823 :     the fast-fp mode.
3824 :    
3825 : blume 2155 c. Added cases for JP and JNP in X86FreqProps.
3826 :    
3827 : leunga 1156 3. CFG
3828 :    
3829 :     CFG now has a bunch of methods for edge splitting and merging.
3830 :    
3831 :     4. Machine description.
3832 :    
3833 :     John's simplification of MLTREE_BASIS.fcond broke a few machine
3834 :     description things:
3835 :    
3836 :     rtl-build.{sig,sml} and hppa.mdl fixed.
3837 :    
3838 : blume 2155 NOTE: the machine description stuff in the repository is still broken.
3839 :     Again, I can't put my fixes in because that involves
3840 :     changes to MLTREE.
3841 : leunga 1156
3842 :     ----------------------------------------------------------------------
3843 : blume 1145 Name: Matthias Blume
3844 : blume 1155 Date: 2002/03/20 15:55:00 EST
3845 :     Tag: blume-20020320-kmp
3846 :     Description:
3847 :    
3848 :     Implemented Knuth-Morris-Pratt string matching in PreString and used
3849 :     it for String.isSubstring, Substring.isSubstring, and
3850 :     Substring.position.
3851 :    
3852 :     (Might need some stress-testing. Simple examples worked fine.)
3853 :    
3854 :     ----------------------------------------------------------------------
3855 :     Name: Matthias Blume
3856 : blume 1152 Date: 2002/03/19 16:37:00 EST
3857 :     Tag: blume-20020319-witnesses
3858 :     Description:
3859 :    
3860 :     Added a structure C.W and functions convert/Ptr.convert to ml-nlffi-lib.
3861 :    
3862 :     This implements a generic mechanism for changing constness qualifiers
3863 :     anywhere within big C types without resorting to outright "casts".
3864 :     (So far, functions such as C.rw/C.ro or C.Ptr.rw/C.Ptr.ro only let you
3865 :     modify the constness at the outermost level.)
3866 :     The implementation of "convert" is based on the idea of "witness"
3867 :     values -- values that are not used by the operation but whose types
3868 :     "testify" to their applicability. On the implementation side, "convert"
3869 :     is simply a projection (returning its second curried argument). With
3870 :     cross-module inlining, it should not result in any machine code being
3871 :     generated.
3872 :    
3873 :     ----------------------------------------------------------------------
3874 :     Name: Matthias Blume
3875 : blume 1148 Date: 2002/03/15 16:40:00 EST
3876 :     Tag: blume-20020315-basis
3877 :     Description:
3878 :    
3879 :     Provided (preliminary?) implementations for
3880 :    
3881 :     {String,Substring}.{concatWith,isSuffix,isSubstring}
3882 :    
3883 :     and
3884 :    
3885 :     Substring.full
3886 :    
3887 :     Those are in the Basis spec but they were missing in SML/NJ.
3888 :    
3889 :     ----------------------------------------------------------------------
3890 :     Name: Matthias Blume
3891 : blume 1145 Date: 2002/03/14 21:30:00 EST
3892 :     Tag: blume-20020314-controls
3893 :     Description:
3894 :    
3895 :     Controls:
3896 :     ---------
3897 :    
3898 :     1. Factored out the recently-added Controls : CONTROLS stuff and put
3899 :     it into its own library $/controls-lib.cm. The source tree for
3900 :     this is under src/smlnj-lib/Controls.
3901 :    
3902 :     2. Changed the names of types and functions in this interface, so they
3903 :     make a bit more "sense":
3904 :    
3905 :     module -> registry
3906 :     'a registry -> 'a group
3907 :    
3908 :     3. The interface now deals in ref cells only. The getter/setter interface
3909 :     is (mostly) gone.
3910 :    
3911 :     4. Added a function that lets one register an already-existing ref cell.
3912 :    
3913 :     5. Made the corresponding modifications to the rest of the code so that
3914 :     everything compiles again.
3915 :    
3916 :     6. Changed the implementation of Controls.MLRISC back to something closer
3917 :     to the original. In particular, this module (and therefore MLRISC)
3918 :     does not depend on Controls. There now is some link-time code in
3919 :     int-sys.sml that registers the MLRISC controls with the Controls
3920 :     module.
3921 :    
3922 :     CM:
3923 :     ---
3924 :    
3925 :     * One can now specify the lambda-split aggressiveness in init.cmi.
3926 :    
3927 :     ----------------------------------------------------------------------
3928 : leunga 1142 Name: Allen Leung
3929 :     Date: 2002/03/13 17:30:00 EST
3930 :     Tag: leunga-20020313-x86-fp-unary
3931 :     Description:
3932 :    
3933 :     Bug fix for:
3934 :    
3935 :     > leunga@weaselbane:~/Yale/tmp/sml-dist{21} bin/sml
3936 :     > Standard ML of New Jersey v110.39.1 [FLINT v1.5], March 08, 2002
3937 :     > - fun f(x,(y,z)) = Real.~ y;
3938 :     > [autoloading]
3939 :     > [autoloading done]
3940 :     > fchsl (%eax), 184(%esp)
3941 :     > Error: MLRisc bug: X86MCEmitter.emitInstr
3942 : blume 2155 >
3943 : leunga 1142 > uncaught exception Error
3944 :     > raised at: ../MLRISC/control/mlriscErrormsg.sml:16.14-16.19
3945 :    
3946 :     The problem was that the code generator did not generate any fp registers
3947 :     in this case, and the ra didn't know that it needed to run the X86FP phase to
3948 :     translate the pseudo fp instruction. This only happened with unary fp
3949 :     operators in certain situations.
3950 :    
3951 :     ----------------------------------------------------------------------
3952 : blume 1137 Name: Matthias Blume
3953 : blume 1140 Date: 2002/03/13 14:00:00 EST
3954 :     Tag: blume-20020313-overload-etc
3955 :     Description:
3956 :    
3957 :     1. Added _overload as a synonym for overload for backward compatibility.
3958 :     (Control.overloadKW must be true for either version to be accepted.)
3959 :    
3960 :     2. Fixed bug in install script that caused more things to be installed
3961 :     than what was requested in config/targets.
3962 :    
3963 :     3. Made CM aware of the (_)overload construct so that autoloading
3964 :     works.
3965 :    
3966 :     ----------------------------------------------------------------------
3967 :     Name: Matthias Blume
3968 : blume 1138 Date: 2002/03/12 22:03:00 EST
3969 :     Tag: blume-20020312-url
3970 :     Description:
3971 :    
3972 :     Forgot to update BOOT and srcarchiveurl.
3973 :    
3974 :     ----------------------------------------------------------------------
3975 :     Name: Matthias Blume
3976 : blume 1137 Date: 2002/03/12 17:30:00 EST
3977 :     Tag: blume-20020312-version110392
3978 :     Description:
3979 :    
3980 :     Yet another version number bump (because of small changes to the
3981 :     binfile format). Version number is now 110.39.2. NEW BOOTFILES!
3982 :    
3983 :     Changes:
3984 :    
3985 :     The new pid generation scheme described a few weeks ago was overly
3986 :     complicated. I implemented a new mechanism that is simpler and
3987 :     provides a bit more "stability": Once CM has seen a compilation
3988 :     unit, it keeps its identity constant (as long as you do not delete
3989 :     those crucial CM/GUID/* files). This means that when you change
3990 : blume 1145 an interface, compile, then go back to the old interface, and
3991 : blume 1137 compile again, you arrive at the original pid.
3992 :    
3993 :     There now also is a mechanism that instructs CM to use the plain
3994 :     environment hash as a module's pid (effectively making its GUID
3995 :     the empty string). For this, "noguid" must be specified as an
3996 :     option to the .sml file in question within its .cm file.
3997 :     This is most useful for code that is being generated by tools such
3998 :     as ml-nlffigen (because during development programmers tend to
3999 :     erase the tool's entire output directory tree including CM's cached
4000 :     GUIDs). "noguid" is somewhat dangerous (since it can be used to locally
4001 :     revert to the old, broken behavior of SML/NJ, but in specific cases
4002 :     where there is no danger of interface confusion, its use is ok
4003 :     (I think).
4004 :    
4005 :     ml-nlffigen by default generates "noguid" annotations. They can be
4006 :     turned off by specifying -guid in its command line.
4007 :    
4008 :     ----------------------------------------------------------------------
4009 : george 1136 Name: Lal George
4010 :     Date: 2002/03/12 12 14:42:36 EST
4011 :     Tag: george-20020312-frequency-computation
4012 :     Description:
4013 : blume 2155
4014 : george 1136 Integrated jump chaining and static block frequency into the
4015 :     compiler. More details and numbers later.
4016 : leunga 1025
4017 : george 1003 ----------------------------------------------------------------------
4018 : george 1133 Name: Lal George
4019 :     Date: 2002/03/11 11 22:38:53 EST
4020 :     Tag: george-20020311-jump-chain-elim
4021 :     Description:
4022 :    
4023 :     Tested the jump chain elimination on all architectures (except the
4024 :     hppa). This is on by default right now and is profitable for the
4025 :     alpha and x86, however, it may not be profitable for the sparc and ppc
4026 :     when compiling the compiler.
4027 :    
4028 : blume 2155 The gc test will typically jump to a label at the end of the cluster,
4029 :     where there is another jump to an external cluster containing the actual
4030 : george 1133 code to invoke gc. This is to allow factoring of common gc invocation
4031 :     sequences. That is to say, we generate:
4032 :    
4033 :     f:
4034 :     testgc
4035 :     ja L1 % jump if above to L1
4036 :    
4037 :     L1:
4038 :     jmp L2
4039 :    
4040 :    
4041 :     After jump chain elimination the 'ja L1' instructions is converted to
4042 :     'ja L2'. On the sparc and ppc, many of the 'ja L2' instructions may end
4043 :     up being implemented in their long form (if L2 is far away) using:
4044 :    
4045 :     jbe L3 % jump if below or equal to L3
4046 :     jmp L2
4047 :     L3:
4048 :     ...
4049 :    
4050 :    
4051 :     For large compilation units L2 may be far away.
4052 :    
4053 :    
4054 :     ----------------------------------------------------------------------
4055 : blume 1132 Name: Matthias Blume
4056 :     Date: 2002/03/11 13:30:00 EST
4057 :     Tag: blume-20020311-mltreeeval
4058 :     Description:
4059 :    
4060 :     A functor parameter was missing.
4061 :    
4062 :     ----------------------------------------------------------------------
4063 : leunga 1130 Name: Allen Leung
4064 : leunga 1131 Date: 2002/03/11 10:30:00 EST
4065 : leunga 1142 Tag: leunga-20020311-runtime-string0
4066 : leunga 1131 Description:
4067 :    
4068 : blume 2155 The representation of the empty string now points to a
4069 :     legal null terminated C string instead of unit. It is now possible
4070 :     to convert an ML string into C string with InlineT.CharVector.getData.
4071 : leunga 1131 This compiles into one single machine instruction.
4072 :    
4073 :     ----------------------------------------------------------------------
4074 :     Name: Allen Leung
4075 : leunga 1130 Date: 2002/03/10 23:55:00 EST
4076 :     Tag: leunga-20020310-x86-call
4077 :     Description:
4078 :    
4079 :     Added machine generation for CALL instruction (relative displacement mode)
4080 :    
4081 :     ----------------------------------------------------------------------
4082 : blume 1128 Name: Matthias Blume
4083 :     Date: 2002/03/08 16:05:00
4084 :     Tag: blume-20020308-entrypoints
4085 :     Description:
4086 :    
4087 :     Version number bumped to 110.39.1. NEW BOOTFILES!
4088 :    
4089 :     Entrypoints: non-zero offset into a code object where execution should begin.
4090 :    
4091 :     - Added the notion of an entrypoint to CodeObj.
4092 :     - Added reading/writing of entrypoint info to Binfile.
4093 :     - Made runtime system bootloader aware of entrypoints.
4094 :     - Use the address of the label of the first function given to mlriscGen
4095 :     as the entrypoint. This address is currently always 0, but it will
4096 :     not be 0 once we turn on block placement.
4097 :     - Removed the linkage cluster code (which was The Other Way(tm) of dealing
4098 :     with entry points) from mlriscGen.
4099 :    
4100 :     ----------------------------------------------------------------------
4101 : leunga 1127 Name: Allen Leung
4102 :     Date: 2002/03/07 20:45:00 EST
4103 :     Tag: leunga-20020307-x86-cmov
4104 :     Description:
4105 :    
4106 :     Bug fixes for CMOVcc on x86.
4107 :    
4108 :     1. Added machine code generation for CMOVcc
4109 :     2. CMOVcc is now generated in preference over SETcc on PentiumPro or above.
4110 :     3. CMOVcc cannot have an immediate operand as argument.
4111 :    
4112 :     ----------------------------------------------------------------------
4113 : blume 1126 Name: Matthias Blume
4114 :     Date: 2002/03/07 16:15:00 EST
4115 :     Tag: blume-20020307-controls
4116 :     Description:
4117 :    
4118 :     This is a very large but mostly boring patch which makes (almost)
4119 :     every tuneable compiler knob (i.e., pretty much everything under
4120 :     Control.* plus a few other things) configurable via both the command
4121 :     line and environment variables in the style CM did its configuration
4122 :     until now.
4123 :    
4124 :     Try starting sml with '-h' (or, if you are brave, '-H')
4125 :    
4126 :     To this end, I added a structure Controls : CONTROLS to smlnj-lib.cm which
4127 :     implements the underlying generic mechanism.
4128 :    
4129 :     The interface to some of the existing such facilities has changed somewhat.
4130 :     For example, the MLRiscControl module now provides mkFoo instead of getFoo.
4131 :     (The getFoo interface is still there for backward-compatibility, but its
4132 :     use is deprecated.)
4133 :    
4134 :     The ml-build script passes -Cxxx=yyy command-line arguments through so
4135 :     that one can now twiddle the compiler settings when using this "batch"
4136 :     compiler.
4137 :    
4138 :     TODO items:
4139 :    
4140 :     We should go through and throw out all controls that are no longer
4141 :     connected to anything. Moreover, we should go through and provide
4142 :     meaningful (and correct!) documentation strings for those controls
4143 :     that still are connected.
4144 :    
4145 :     Currently, multiple calls to Controls.new are accepted (only the first
4146 :     has any effect). Eventually we should make sure that every control
4147 :     is being made (via Controls.new) exactly once. Future access can then
4148 :     be done using Controls.acc.
4149 :    
4150 :     Finally, it would probably be a good idea to use the getter-setter
4151 :     interface to controls rather than ref cells. For the time being, both
4152 :     styles are provided by the Controls module, but getter-setter pairs are
4153 :     better if thread-safety is of any concern because they can be wrapped.
4154 :    
4155 :     *****************************************
4156 :    
4157 :     One bug fix: The function blockPlacement in three of the MLRISC
4158 :     backpatch files used to be hard-wired to one of two possibilities at
4159 :     link time (according to the value of the placementFlag). But (I
4160 :     think) it should rather sense the flag every time.
4161 :    
4162 :     *****************************************
4163 :    
4164 :     Other assorted changes (by other people who did not supply a HISTORY entry):
4165 :    
4166 :     1. the cross-module inliner now works much better (Monnier)
4167 :     2. representation of weights, frequencies, and probabilities in MLRISC
4168 :     changed in preparation of using those for weighted block placement
4169 :     (Reppy, George)
4170 :    
4171 :     ----------------------------------------------------------------------
4172 : george 1116 Name: Lal George
4173 : george 1124 Date: 2002/03/07 14:44:24 EST 2002
4174 :     Tag: george-20020307-weighted-block-placement
4175 :    
4176 :     Tested the weighted block placement optimization on all architectures
4177 :     (except the hppa) using AMPL to generate the block and edge frequencies.
4178 :     Changes were required in the machine properties to correctly
4179 : blume 2155 categorize trap instructions. There is an MLRISC flag
4180 :     "weighted-block-placement" that can be used to enable weighted block
4181 : george 1124 placement, but this will be ineffective without block/edge
4182 :     frequencies (coming soon).
4183 :    
4184 :    
4185 :     ----------------------------------------------------------------------
4186 :     Name: Lal George
4187 : blume 2155 Date: 2002/03/05 17:24:48 EST
4188 : george 1116 Tag: george-20020305-linkage-cluster
4189 :    
4190 : george 1124 In order to support the block placement optimization, a new cluster
4191 :     is generated as the very first cluster (called the linkage cluster).
4192 : blume 2155 It contains a single jump to the 'real' entry point for the compilation
4193 : george 1124 unit. Block placement has no effect on the linkage cluster itself, but
4194 :     all the other clusters have full freedom in the manner in which they
4195 : blume 2155 reorder blocks or functions.
4196 : george 1116
4197 :     On the x86 the typical linkage code that is generated is:
4198 :     ----------------------
4199 :     .align 2
4200 :     L0:
4201 :     addl $L1-L0, 72(%esp)
4202 : george 1124 jmp L1
4203 : george