Home My Page Projects Code Snippets Project Openings SML/NJ
Summary Activity Forums Tracker Lists Tasks Docs Surveys News SCM Files

SCM Repository

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

Diff of /sml/branches/primop-branch-3/NOTES/HISTORY

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1190, Mon May 13 20:39:05 2002 UTC revision 1539, Tue Jul 13 19:05:30 2004 UTC
# Line 13  Line 13 
13  Description:  Description:
14    
15  ----------------------------------------------------------------------  ----------------------------------------------------------------------
16    Name: Allen Leung (leunga (at) reservoir (dot) com)
17    Date: 2004/07/13 15:04:00 EST
18    Tag: leunga-110_46_1-ppc-lwarx
19    Description:
20    
21       Added the two instructions LWARX and STWCX to the PowerPC
22    instruction set.
23    
24       A (untested) rewrite of loop-structure.sml.  The old version
25    is completely broken.
26    
27    ----------------------------------------------------------------------
28    Name: Matthias Blume (blume (at) tti - c (dot) org)
29    Date: 2004/07/13 13:50:00 CDT
30    Tag: blume-20040713-nlffi
31    Description:
32    
33    - use paramAlloc to report c-calls with too many arguments
34      (for PPC version where parameter area is pre-allocated)
35    - added ccall_maxargspace to machspec (to implement the above)
36    - made "make" commend in CM's "make" tool configurable
37    - added option (default: on) for passing the name of the SML/NJ's "bin"
38      directory to "make"; the call looks like this:
39    
40         make <options> SMLNJ_BINDIR=<dir> <target>
41    
42      This can be used by the Makefile to, e.g., pick the "right" version
43      of ml-nlffigen.
44    - minor code tweaks
45    
46    ----------------------------------------------------------------------
47    Name: Matthias Blume (blume (at) tti - c (dot) org)
48    Date: 2004/07/12 22:50:00 CDT
49    Tag: blume-110_46_1-macosx-nlffi
50    Description:
51    
52    NLFFI under Mac OS X now working (sort of).  This is largely untested,
53    though.
54    
55    Note:  1. You have to make a new, clean build of the runtime system.
56           2. There are new BOOTFILES, you have to use them!
57              (Doing the bootstrap process yourself would be *very* painful!
58               If you absolutely have to do it, build the system under
59               a different architecture and then cross-compile.)
60    
61    Version bumped to 110.46.1 to account for runtime data format changes.
62    
63    ----------------------------------------------------------------------
64    Name: Matthias Blume (blume (at) tti - c (dot) org)
65    Date: 2004/06/18 14:30:00 CDT
66    Tag: blume-20040618-unix
67    Description:
68    
69    Changed the implementation of structure Unix so that the same stream
70    is returned every time one of the {text,bin}{In,Out}streamOf functions
71    is invoked on the same proc.  This is not what the spec currently
72    says -- although IMO it arguably should.  (See discussion below.)
73    
74    ----------------------------------------------------------------------
75    Name: Matthias Blume (blume (at) tti - c (dot) org)
76    Date: 2004/06/17 18:15:00 CDT
77    Tag: Release_110_46
78    Description:
79    
80    New working version (110.46).  NEW BOOTFILES!
81    
82    ----------------------------------------------------------------------
83    Name: Matthias Blume (blume (at) tti - c (dot) org)
84    Date: 2004/06/17 17:20:00 CDT
85    Tag: blume-20040617-timer-unix
86    Description:
87    
88    Changed the interface of structures Timer and Unix to match the most
89    recent Basis spec.
90    
91    In the case of Unix there still seems to be an open/weird issue:
92    
93       The {text,bin}{In,Out}streamOf functions are supposed to create
94       fresh streams whenever they are called -- as opposed to have them
95       return the same stream every time.  This design is supposed to
96       prevent space leaks caused by proc values hanging on to streams.
97    
98       The reap function, on the other hand, is supposed to close the
99       streams.  This cannot be done without having a handle on the
100       stream in proc after all...
101    
102    I took the liberty to implement the following stopgap solution:
103    
104      The proc value hangs on to the most recently created stream(s).
105      Reap closes those.  If either or both of the two streams hadn't
106      been created at all yet, then reap will close the corresponding
107      file descriptors directly.
108    
109    PS: I don't understand the original space leak argument anymore.  If
110    a proc hangs on to the imperative stream, then I/O operations on those
111    will advance the state of the cached stream and avoid the space leak.
112    
113    ----------------------------------------------------------------------
114    Name: Matthias Blume (blume (at) tti - c (dot) org)
115    Date: 2004/05/28 16:45:00 CDT
116    Tag: blume-20040528-basis
117    Description:
118    
119    Added signature PACK_REAL and exported functor PrimIO.
120    
121    ----------------------------------------------------------------------
122    Name: Matthias Blume (blume (at) tti - c (dot) org)
123    Date: 2004/05/25 16:00:00 CDT
124    Tag: blume-20040525-group-owner
125    Description:
126    
127    CM now ignores (but still accepts) the "owner" information in group
128    descriptions.  The owner of a group is its next enclosing
129    library. Each group must have a unique owner.  (There is a virtual
130    "toplevel" library that owns groups which are not nested within a real
131    library.)  Previously, each group had to explicitly declare its owner,
132    and CM would check that such a declaration is correct.  The new scheme
133    is to have CM check that for each group there is precisely one owning
134    library.
135    
136    The advantage of the new scheme is that the programmer no longer needs
137    to maintain the somewhat annoying owner information.  The downside is
138    that CM cannot enforce the ownership rule across multiple runs of
139    CM.make.  Fortunately, enclosing the same group in two different
140    libraries A and B which are not part of the same program does not
141    cause real problems.
142    
143    ----------------------------------------------------------------------
144    Name: Matthias Blume (blume (at) tti - c (dot) org)
145    Date: 2004/05/20 16:00:00 CDT
146    Tag: blume-20040520-win32
147    Description:
148    
149    Made the win32 version work again.  (Strangely, a misplaced comma had
150    slipped into win32-process.c which prevented the runtime from being
151    compiled correctly.)
152    
153    Also, included a minor addition to ml-build.bat analogous to what was
154    done in blume-20040519-ml-build.
155    
156    ----------------------------------------------------------------------
157    Name: Matthias Blume (blume (at) tti - c (dot) org)
158    Date: 2004/05/19 22:10:00 CDT
159    Tag: blume-20040519-ml-build
160    Description:
161    
162    Arranged for ml-build to clean up after itself a little bit better.
163    The script generates a temporary SML source file and compiles it using
164    CM, so CM generates metadata (GUID, SKEL, objectfile) for it.  It now
165    gets rid of those at the end, so they don't accumulate under .cm.
166    
167    This required a minor change to install.sh because the name of the
168    metadata directory (default: .cm) is actually configurable at
169    installation time.
170    
171    ----------------------------------------------------------------------
172    Name: Matthias Blume (blume (at) tti - c (dot) org)
173    Date: 2004/05/18 15:50:00 CDT
174    Tag: blume-20040518-mkreader
175    Description:
176    
177    Added Posix.IO.mk{Bin,Text}{Reader,Writer} by lifting their respective
178    implementations from internal modules PosixBinPrimIO and PosixTextPrimIO.
179    
180    ----------------------------------------------------------------------
181    Name: Matthias Blume (blume (at) tti - c (dot) org)
182    Date: 2004/05/11 14:35:00 CDT
183    Tag: blume-20040511-win32sock
184    Description:
185    
186    Added previously missing support for many socket-related functions
187    under win32.  Thanks to David Hansel <hansel@reactive-systems.com>
188    for the voluminous patch!
189    
190    (I have not tested this patch under win32 yet.)
191    
192    Here is David's e-mail:
193    
194    Hi,
195    
196    Attached to this email you find a diff against sml/nj 110.45
197    that will enable socket support under Windows.
198    
199    To apply the patch (using unix or cygwin)
200    1) gunzip runtime.diff.gz
201    2) "cd" into "src/runtime" in the source tree of a fresh
202       110.45 installation.
203    3) patch -p 1 < [your/path/to]runtime.diff
204    
205    The code compiles fine but has NOT yet been extensively tested.
206    I only ran a few tests for basic socket client functionality
207    (which worked fine).  Especially the functions that use ioctl
208    are not tested at all and might not work (see below).
209    
210    I implemented this since we want to move to a newer version of sml/nj
211    but need socket support in order to use it.  This is the first time I
212    even had a look at the sml/nj source,  so please review my changes
213    before making this part of the distribution!  Here are a few issues
214    that I think might be better for someone to solve who is more
215    familiar with the sml/nj source (and socket programming):
216    
217    - getnetbyaddr.c and getnetbyname.c will raise a "not implemented"
218      exception since I could not figure out what the windows equivalent
219      of these functions is
220    
221    - In sockets-osdep.h there are a some #include statements that are
222      only used in a few files that include sockets-osdep.h
223    
224    - In smlnj-sock-lib.c, function init_fn() calls WSAStartup() but
225      does not process its return value since I don't know how to
226      report an error upwards.
227    
228    - It would probably be good to have a call to WSACleanup() when
229      the library is unloaded (if there is such a possibility).
230      Otherwise I think Windows will take care of this automatically
231      when the process finishes.
232    
233    - I used ioctlsocket() as a replacement for ioctl() but I have
234      no idea if that is actually the proper replacement on Windows.
235    
236    - All these issues are marked in the code by "FIXME" comments.
237    
238    We use sml/nj extensively in our products and are quite happy
239    with it.  I hope this contribution will help you.
240    
241    Keep up the good work!
242    
243    David
244    
245    ----------------------------------------------------------------------
246    Name: Matthias Blume (blume (at) tti - c (dot) org)
247    Date: 2004/05/11 14:20:00 CDT
248    Tag: blume-20040511-installml
249    Description:
250    
251    Fixed two bugs in installml script.  (Thanks to Vesa A. Norrman for
252    the patch.)
253    
254    ----------------------------------------------------------------------
255    Name: Matthias Blume (blume (at) tti - c (dot) org)
256    Date: 2004/05/11 14:05:00 CDT
257    Tag: blume-20040511-nlffi-netbsd
258    Description:
259    
260    Added support for nlffi under netbsd.  (Thanks to Vesa A. Norrman for
261    the patch.)
262    
263    ----------------------------------------------------------------------
264    Name: Matthias Blume (blume (at) tti - c (dot) org)
265    Date: 2004/05/11 12:05:00 CDT
266    Tag: blume-20040511-exports
267    Description:
268    
269    As per request by Adam Chlipala <adam@hcoop.net>, extended various
270    export lists in compiler-related .cm-files.
271    
272    ----------------------------------------------------------------------
273    Name: Matthias Blume (blume (at) tti - c (dot) org)
274    Date: 2004/05/11 11:35:00 CDT
275    Tag: blume-20040511-allsource
276    Description:
277    
278    The installer now honors the "src-smlnj" target again, although its meaning
279    has changed from "all sources required for the compiler" to "all sources
280    the installer knows about".  In other words, if you enable "src-smlnj"
281    in the "targets" file, then the installer will pull in sources for
282    everything.  (Notice that this refers to source code only.  Compiled
283    code is still only installed for modules that were requested explicitly
284    or which are required for other modules that were requested explicitly.)
285    
286    ----------------------------------------------------------------------
287    Name: Matthias Blume (blume (at) tti - c (dot) org)
288    Date: 2004/04/23 17:40:00 CDT
289    Tag: blume-20040423-ieee-scan
290    Description:
291    
292    Fixed IEEEReal.scan (and .fromString) so that if there is an overflow
293    in the exponent calculation we get INF or ZERO (depending on the mantissa
294    and the sign of the exponent).
295    
296    ----------------------------------------------------------------------
297    Name: Matthias Blume (blume (at) tti - c (dot) org)
298    Date: 2004/04/23 10:40:00 CDT
299    Tag: blume-20040423-ml-build
300    Description:
301    
302    The ml-build script now terminates with a non-0 status when something
303    goes wrong.
304    
305    ----------------------------------------------------------------------
306    Name: Matthias Blume (blume (at) tti - c (dot) org)
307    Date: 2004/04/22 16:35:00 CDT
308    Tag: blume-20040422-Option
309    Description:
310    
311    Made exception Option to be the same as exception Option.Option
312    (as it should be).
313    
314    ----------------------------------------------------------------------
315    Name: Allen Leung (leunga (at) reservoir (dot) com)
316    Date: 2004/03/19 14:40:00 EST
317    Tag: leunga-20040319-cygwin-nlffi
318    Description:
319    
320    Fixed the runtime so that ml-nlffi-lib runs on the cygwin version
321    of SML/NJ.  The problem is that
322    
323       lib = dlopen(NULL, ...)
324       f   = dlsym(lib, "malloc");
325    
326    does not work on Windows unless we explicitly export symbols
327    such as 'malloc' during linking.  We fixed this by explicitly
328    exporting the required symbols with the magic gcc incantation:
329    
330        -Wl,--export-all cygwin.def
331    
332    where cygwin.def is a file containing all the symbols that
333    we wish to export.
334    
335    I suspect this is a Windows problem and we'll have to
336    do the same (somehow with windows compilers) when
337    we build the native win32 version with the system
338    calls LoadLibrary/GetProcAddress.
339    
340    ----------------------------------------------------------------------
341    Name: Matthias Blume (blume (at) tti - c (dot) org)
342    Date: 2004/03/04 16:35:00 CST
343    Tag: blume-20040304-intinf-fmt
344    Description:
345    
346    Fixed problem with IntInf.fmt (sign would show up on the right instead
347    of on the left for BIN, OCT, and HEX).
348    
349    ----------------------------------------------------------------------
350    Name: Matthias Blume (blume (at) tti - c (dot) org)
351    Date: 2004/03/04 11:25:00 CST
352    Tag: blume-20040304-symlinks
353    Description:
354    
355    Fixed problem with installer script (unix only) where bin/ml-yacc and
356    friends pointed (via symlinks) to absolute locations instead of just
357    .run-sml.  This was reported by Vesa A Norrman.
358    
359    ----------------------------------------------------------------------
360    Name: Matthias Blume (blume (at) tti - c (dot) org)
361    Date: 2004/02/13 14:50:00 CST
362    Tag: Release_110_45
363    Description:
364    
365    New working version (110.45). New bootfiles.
366    
367    ----------------------------------------------------------------------
368    Name: Matthias Blume (blume (at) tti - c (dot) org)
369    Date: 2004/01/26 15:15:15 CST
370    Tag: blume-20040126-toplevel
371    Description:
372    
373    Improved handling of exceptions at the interactive toplevel.
374    
375    ----------------------------------------------------------------------
376    Name: Matthias Blume (blume (at) tti - c (dot) org)
377    Date: 2004/01/26 11:25:00
378    Tag: blume-20040126-app
379    Description:
380    
381    Type of top-level "app" corrected.
382    Added code for setting vp_limitPtrMask to Win32-specific runtime.
383    
384    ----------------------------------------------------------------------
385    Name: Matthias Blume (blume (at) tti - c (dot) org)
386    Date: 2003/11/18 17:10 CST
387    Tag: blume-20031118-basis-fiddle
388    Description:
389    
390    - changed Timer interface to what might become the spec
391    - POSIX_FLAGS -> BIT_FLAGS according to spec
392    - some other minor discrepancies wrt. spec eliminated
393    
394    ----------------------------------------------------------------------
395    Name: Matthias Blume (blume (at) tti - c (dot) org)
396    Date: 2003/11/06 12:00:00 CST
397    Tag: Release_110_44
398    Description:
399    
400    New working version (110.44). New bootfiles.
401    
402    ----------------------------------------------------------------------
403    Name: Matthias Blume (blume (at) tti - c (dot) org)
404    Date: 2003/11/04 11:50:00 CST
405    Tag: blume-20031104-move-libraries
406    Description:
407    
408    Eliminated the "dont_move_libraries" directive in config/targets.
409    (The mechanism was broken and could not be fixed easily.  Moreover,
410    there does not seem to be any reason not to move all libraries into
411    lib during installation.  I originally implemented this directive as a
412    backward-compatibility feature when I first introduced the new CM.
413    Now that things have been stable for a long time and going back to the
414    old CM is not an option, there is no reason to keep it around.)
415    
416    ----------------------------------------------------------------------
417    Name: Matthias Blume (blume (at) tti - c (dot) org)
418    Date: 2003/11/03 16:00:00 CST
419    Tag: blume-20031103-installdir
420    Description:
421    
422    Made installer honor INSTALLDIR variable again.  (Thanks to Chris
423    Richards for pointing out the problem and providing the solution.)
424    
425    ----------------------------------------------------------------------
426    Name: Matthias Blume (blume (at) tti - c (dot) org)
427    Date: 2003/10/01 17:05:00 CDT
428    Tag: blume-20031001-lal-mlrisc
429    Description:
430    
431    MLRISC bug fix from Lal.
432    
433    ----------------------------------------------------------------------
434    Name: Matthias Blume (blume (at) tti - c (dot) org)
435    Date: 2003/09/30 16:10:00 CDT
436    Tag: blume-20030930-primio-bat
437    Description:
438    
439    1. Added openVector, nullRd, and nullWr to PRIM_IO.
440    2. Improved .bat files (for Win32 port) to make things work under Win95.
441       (thanks to Aaron S. Hawley for this one)
442    
443    ----------------------------------------------------------------------
444    Name: Matthias Blume (blume (at) tti - c (dot) org)
445    Date: 2003/09/26 16:05:00 CDT
446    Tag: blume-20030926-wrappriv
447    Description:
448    
449    Added missing wrapper for privilege "primitive" in $smlnj/viscomp/core.cm.
450    
451    ----------------------------------------------------------------------
452    Name: Matthias Blume (blume (at) tti - c (dot) org)
453    Date: 2003/09/26 15:00:00 CDT
454    Tag: blume-20030926-110_43_3
455    Description:
456    
457    - additional cleanup
458    - version number bump, NEW BOOTFILES
459    
460    ----------------------------------------------------------------------
461    Name: Matthias Blume (blume (at) tti - c (dot) org)
462    Date: 2003/09/26 12:00:00 CDT
463    Tag: blume-20030926-ppautoload
464    Description:
465    
466    I modified the read-eval-print loop so that the autoloader gets
467    invoked whenever the prettyprinter tries to look up a symbol that
468    is not currently defined in the toplevel environment but which
469    appears in CM's autoload registry.  As a result, we see far fewer of
470    those ?.Foo.Bar.xxx names in the prettyprinter's output.
471    
472    In addition to this I tried to clean up some pieces of the Basis
473    implementation (e.g., Socket, Word8Array) in order to prevent other
474    instances of these ?.Foo.Bar.xxx names from being printed.
475    
476    The mechanism that picks names for types still needs some work, though.
477    (Right now it seems that if there is a type A.t which is defined to
478    be B.u, but B is unavailable at toplevel, then A.t gets printed as
479    "?.B.u" although the perhaps more sensible solution would be to use
480    "A.t" in this case.  In other words, the prettyprinter should follow
481    a chain of DEFtycs not farther than there are corresponding toplevel
482    names in the current environment.)
483    
484    ----------------------------------------------------------------------
485    Name: Matthias Blume (blume (at) tti - c (dot) org)
486    Date: 2003/09/24 16:31:00 CDT
487    Tag: blume-20030924-installer
488    Description:
489    
490    Another installer tweak:  All the ML code for the installer is now
491    compiled during CMB.make and put into a little library called
492    $smlnj/installer.cm.  The installation then simply invokes
493    
494       sml -m $smlnj/installer.cm
495    
496    and everything happens automagically.
497    
498    Win32:  ML code senses value of environment variable SMLNJ_HOME.
499    Unix:   ML code senses values of environment variables ROOT, CONFIGDIR,
500            and BINDIR.
501    
502    The new scheme guarantees that the ML code responsible for the installation
503    is in sync with the APIs of the main system.  Also, the installer is
504    somewhat faster because the installer script is precompiled.
505    
506    ----------------------------------------------------------------------
507    Name: Matthias Blume (blume (at) tti - c (dot) org)
508    Date: 2003/09/24 15:35:00 CDT
509    Tag: blume-20030924-synsock
510    Description:
511    
512    Added a signature SYNCHRONOUS_SOCKET to basis.cm.  This is like SOCKET
513    but excludes all non-blocking operations.  Defined SOCKET (in Basis)
514    and CML_SOCKET in terms of SYNCHRONOUS_SOCKET.  Removed superfluous
515    implementations of non-blocking operations from CML's Socket
516    structure.
517    
518    ----------------------------------------------------------------------
519    Name: Matthias Blume (blume (at) tti - c (dot) org)
520    Date: 2003/09/24 15:10:05 CDT
521    Tag: blume-20030924-sockets
522    Description:
523    
524    1. Fixed SOCKET API and implementation to match Basis spec.
525       This required changing the internal representation of sockets to one
526       that remembers (for each socket file descriptor) whether it is currently
527       blocking or non-blocking.  This state is maintained lazily (i.e., a system
528       call is made only if the state actually needs to change).
529    
530    2. OS-specific details of sockets were moved into separate files, thus
531       making it possible to unify the bulk of the socket implementations
532       between Unix and Win32.
533    
534    3. CML's socket API changed accordingly.
535       (Note that we need to remove non-blocking functions from this API
536       since they are redundant in the case of CML!)
537    
538    4. CML's socket implementation now makes use of non-blocking functions
539       provided by Basis, thus removing all OS-dependent code from this part
540       of CML.
541    
542    5. Changed Real64.precision from 52 to 53.  Minor cleanup in Real64 code.
543    
544    ----------------------------------------------------------------------
545    Name: Matthias Blume (blume (at) tti - c (dot) org)
546    Date: 2003/09/22 12:10:00 CDT
547    Tag: blume-20030922-110_43_2
548    Description:
549    
550    Made a new interim version and bootfiles for developer's bootstrapping
551    convenience.
552    
553       110.43.2 -- NEW BOOTFILES
554    
555    ----------------------------------------------------------------------
556    Name: Matthias Blume (blume (at) tti - c (dot) org)
557    Date: 2003/09/19 15:55:00 CDT
558    Tag: blume-20030919-cmdir
559    Description:
560    
561    1. new-install.sh -> install.sh
562    2. changed default CM "metadata" directory name to ".cm" (instead of "CM")
563    3. tweaked installer so that another name instead of .cm can be chosen
564       at install time (by setting the CM_DIR_ARC environment variable
565       during installation); once installation is complete, the name is
566       fixed
567    
568    ----------------------------------------------------------------------
569    Name: Matthias Blume (blume (at) tti - c (dot) org)
570    Date: 2003/09/18 16:00:00 CDT
571    Tag: blume-20030918-110_43_1
572    Description:
573    
574    Made a new interim version and bootfiles for developer's bootstrapping
575    convenience.
576    
577       110.43.1 -- NEW BOOTFILES
578    
579    ----------------------------------------------------------------------
580    Name: Matthias Blume (blume (at) tti - c (dot) org)
581    Date: 2003/09/18 15:20:00 CDT
582    Tag: blume-20030918-misc
583    Description:
584    
585    1. Exported fractionsPerSecond etc. from TimeImp (but not from Time as
586       this seems to be controversial at the moment) and used those in
587       Posix.ProcEnv.times.
588    
589    2. Added Time.{from,to}Nanoseconds to Time.
590    
591    3. Improved Real.{from,to}LargeInt by avoiding needless calculations.
592       For example, fromLargeInt never needs to look at more than 3 "big
593       digits" to get its 53 bits of precision.
594    
595    ----------------------------------------------------------------------
596    Name: Matthias Blume (blume (at) tti - c (dot) org)
597    Date: 2003/09/17 16:30:00 CDT
598    Tag: blume-20030917-real32-slices
599    Description:
600    
601    Added an entry to the primitive environment
602    (compiler/Semant/statenv/prim.sml) for int32->real64 conversion and
603    added code to compiler/CodeGen/main/mlriscGen.sml to implement it.
604    
605    Removed some of the "magic" constants in real64.sml and replaced them
606    with code that generates these values from their corresponding
607    integer counterparts.
608    
609    Made all(?) the slice-related changes to the Basis and made everything
610    compile again...
611    
612    ----------------------------------------------------------------------
613    Name: Matthias Blume (blume (at) tti - c (dot) org)
614    Date: 2003/09/15 17:45:00 CDT
615    Tag: blume-20030915-rbase
616    Description:
617    
618    Fixed bug in Real.fromLargeInt.
619    
620    ----------------------------------------------------------------------
621    Name: Matthias Blume (blume (at) tti - c (dot) org)
622    Date: 2003/09/13 18:11:00 CDT
623    Tag: blume-20030913-libinstall
624    Description:
625    
626    Minor bugfix in config/libinstall (set anchor with path to
627    standalone tool after installing it, otherwise libraries that
628    need ml-lex or ml-yacc won't compile the first time the installer
629    runs).
630    
631    ----------------------------------------------------------------------
632    Name: Matthias Blume (blume (at) tti - c (dot) org)
633    Date: 2003/09/12 11:45:00 CDT
634    Tag: blume-20030912-various
635    Description:
636    
637     - fixed bug in Real.toLargeInt
638     - fixed bug in Posix.ProcEnv.times
639     - changed inputLine functions to return an option
640     - minor installer improvements / bugfixes
641     - changed default @SMLalloc parameter for x86/celeron to 64k
642    
643    ----------------------------------------------------------------------
644    Name: Matthias Blume (blume (at) tti - c (dot) org)
645    Date: 2003/09/09 22:00:00 CDT
646    Tag: Release_110_43
647    Description:
648    
649        New working release 110.43.  New bootfiles.
650    
651    ----------------------------------------------------------------------
652    Name: Matthias Blume (blume (at) tti - c (dot) org)
653    Date: 2003/09/09 19:20:00 CDT
654    Tag: blume-20030909-installer
655    Description:
656    
657    Rewrote large parts of config/install.sh in SML (config/libinstall.sml).
658    Modified config/install.bat to take advantage of it.  Also modified
659    config/install.sh (and called it config/new-install.sh) to take advantage
660    of it on Unix systems.  (The SML code is (supposed to be) platform-
661    independent.)
662    
663    The installer can now install everything under Win32
664    as well as under *nix as long as it compiles.
665    
666    Other changes:
667    
668      - made CML compile again under Win32
669      - made eXene compile under Win32 (by providing a fake structure UnixSock
670        and by using OS.Process.getEnv instead of Posix.ProcEnv.getenv)
671      - fixed a bug in nowhere: it assumed that type OS.Process.status is the
672        same as type int;  under Win32 it isn't
673      - fixed some slice-related problems in the win32-specific parts of CML
674      - added a functor argument "sameVol" to os-path-fn.sml in the Basis
675        (under Win32, the volume name is case-insensitive, and the
676        OS.Path code compares volume names for equality)
677    
678    ----------------------------------------------------------------------
679    Name: Matthias Blume (blume (at) tti - c (dot) org)
680    Date: 2003/09/08 11:55:00 CDT
681    Tag: blume-20030908-fullpath
682    Description:
683    
684    Made Win32 version of OS.FileSys.fullPath return current directory
685    when given an empty string.  This is what the spec says, and incidentally,
686    CM depends on it.  (CM otherwise goes into an infinite loop in certain
687    cases when presented with the name of a non-existing .cm file.)
688    
689    ----------------------------------------------------------------------
690    Name: Matthias Blume (blume (at) tti - c (dot) org)
691    Date: 2003/09/04 16:30:00 CDT
692    Tag: blume-20030905-slices-etc
693    Description:
694    
695      1. Changed interface to vectors and arrays in Basis to match
696         (draft) Basis spec.
697      2. Added signatures and implementations of slices according to
698         Basis spec.
699      3. Edited source code throughout the system to make it compile again
700         under 1. and 2.  (In some cases code had to be added to have it
701         match the new signatures.)
702      4. MLRISC should be backward-compatible: the copies of the originals
703         of files that needed to change under 3. were retained, the .cm files
704         check the compiler version number and use old versions when
705         appropriate.
706      5. Changed type of OS.FileSys.readDir and Posix.FileSys.readdir to
707         dirstream -> string option (in accordance with Basis spec).
708      6. When generating code that counts lines, ml-lex used function
709         CharVector.foldli, taking advantage of its old interface.
710         This has been replaced with the corresponding code from
711         CharVectorSlice.  (html-lex must be re-lexed!)
712      7. BitArray in smlnj-lib/Util has been extended/modified to match the
713         new MONO_ARRAY signature.  (Do we need BitArraySlice?)
714      8. Removed temporary additions (fromInternal, toInternal) from the
715         (now obsolete) IntInf in smlnj-lib/Util.
716      9. Cleaned up structure Byte.
717     10. Added localOffset, scan, and fromString to Date (according to spec).
718         Cleaned/corrected implementation of Date.
719         (Still need to check for correctness; implement better canonicalizeDate.)
720     11. Added "scan" to signature IEEE_REAL.
721     12. Some improvements to IntInf [in particular: efficiency-hack for
722         mod and rem when second operand is 2 (for parity checks).]
723     13. Changed representation of type Time.time, using a single IntInf.int
724         value counting microseconds.  This considerably simplified the
725         implementation of structure Time.  We now support negative time
726         values; scan and fromString handle signs.
727     14. Functor PrimIO now takes two additional arguments (VectorSlice and
728         ArraySlice).
729    
730    ----------------------------------------------------------------------
731    Name: Matthias Blume (blume (at) tti - c (dot) org)
732    Date: 2003/08/28 17:00:00 CDT
733    Tag: blume-20030828-intinf
734    Description:
735    
736    This is a major update which comes with a version number bump
737    (110.42.99 -- yes, we are really close to 110.43 :-), NEW BOOTFILES,
738    and an implementation of IntInf in the Basis.
739    
740    There are a fairly large number of related changes and updates throughout
741    the system:
742    
743    Basis:
744            - Implemented IntInf.
745            - Made LargeInt a projection of IntInf (by filtering through INTEGER).
746            - Added some missing Real64 operations, most notably Real.toLargeInt.
747            - Added FixedInt as a synonym for Int32.
748    
749    compiler:
750            * Added support for a built-in intinf type.
751              - literals
752              - pattern matching
753              - conversion shortcuts (Int32.fromLarge o Int.toLarge etc.)
754              - overloading on literals and operations
755    
756            This required adding a primitive type intinf, some additional
757            primops, and implementations for several non-trivial intinf
758            operations in Core.  (The intinf type is completely abstract
759            to the compiler; all operations get delegated back to the Core.)
760    
761            * Intinf equality is handled by polyequal.  However, the compiler
762            does not print its usual warning in this case (since polyequal
763            is the right thing to do there).
764    
765            * Improved the organization of structure InlineT.
766    
767            * A word about conversion primops:
768            If conversions involving intinf do not cancel out during
769            CPS contract, then the compiler must insert calls to Core functions.
770            Since all core access must be resolved already during the FLINT
771            translate phase, it would be too late a the time of CPS contract
772            to add new Core calls.  For this reason, conversion primops
773            for intinf carry two arguments:  1. the numeric argument that
774            they are supposed to convert, and 2. the Core function that
775            can help with this conversion if necessary.  If CPS contract
776            eliminates a primop, then the associated Core function becomes
777            dead and goes away.  Intinf conversion primops that do not get
778            eliminated by CPS contract get rewritten into calls of their
779            core functions by a separate, new phase.
780    
781    interactive system:
782            - Control.Print.intinfDepth controls max length of intinf constants
783            being printed. (Analogous to Control.Print.stringDepth.)
784            - Cleanup in printutil and pputil: got rid of unused stuff and
785            duplicates; replaced some of the code with code that makes better
786            use of library functionality.
787    
788    CM:
789            Bugfix: parse-errors in init group (system/smlnj/init/init.cmi)
790            are no longer silent.
791    
792    CKIT:
793            Fixed mismatched uses of Int32 and LargeInt.  I always decided
794            in favor of LargeInt -- which is now the same as IntInf.
795            CKIT-knowledgable people should check whether this is what's
796            intended and otherwise change things back to using Int32 or
797            FixedInt.
798    
799    Throughout the code:
800            Started using IntInf.int literals and built-in operations
801            (e.g., comparison with 0) where this seems appropriate.
802    
803    
804    ----------------------------------------------------------------------
805    Name: Dave MacQueen (dbm@cs.uchicago.edu)
806    Date: 2003/08/13 11:36:00 CDT
807    Tag: dbm-20030813-mcz-merge1
808    Description:
809    
810    Merging changes from the mcz-branch development branch into trunk.
811    These changes involve replacement of the emulated old prettyprinter
812    interface with direct use of the SML/NJ Lib PP library, and fixing
813    of a couple of bugs (895, 1186) relating to error messages.  A new
814    prettyprinter for ast datatypes (Elaborator/print/ppast.{sig,sml})
815    has been added.
816    
817    ----------------------------------------------------------------------
818    Name: Matthias Blume (blume (at) tti - c (dot) org)
819    Date: 2003/08/11 15:45:00 CDT
820    Tag: blume-20030811-windows
821    Description:
822    
823    Version number bumped to 110.42.9.  NEW BOOTFILES!!!
824    
825        http://smlnj.cs.uchicago.edu/dist/working/110.42.9/
826    
827    This patch restores SML/NJ's ability to run under win32.  There are a
828    number of changes, including fixes for several bugs that had gone
829    unnoticed until now:
830    
831      - uname "CYGWIN_NT*" is recognized as win32 (This is relevant only when
832        trying to run the win32 version from within cygwin.)
833    
834      - There are a number of simple .bat scripts that substitute for their
835        corresponding Unix shell-scripts.  (See below.)
836    
837      - The internals of ml-build have been modified slightly.  The main
838        difference is that instead of calling ".link-sml" (or link-sml.bat)
839        using OS.Process.system, the ML process delegates this task back
840        to the script.  Otherwise problems arise in mixed environments such
841        as Cygwin where scripts look and work like Unix scripts, but
842        where OS.Process.system cannot run them.
843    
844      - In CM, the srcpath pickler used native pathname syntax -- which
845        is incorrect in the case of cross-compilation.  The new pickle format
846        is independent of platform-specific naming conventions.
847    
848      - Path configuration files (such as lib/pathconfig) can now choose
849        between native and standard syntax.  Placing a line of the form
850    
851            standard!
852    
853        into the file causes all subsequent paths to be interpreted using
854        CM standard pathname syntax (= Unix conventions); a line
855    
856            native!
857    
858        switches back to native style.  This was needed so that
859        path config files can be written portably, see src/system/pathconfig.
860    
861      - Runtime system:
862    
863          - win32-filesys.c:  get_file_time and set_file_time now
864            access modification time, not creation time.
865    
866          - I/O code made aware of new array representation.
867    
868          - Bug fixes in X86.prim.masm.
869    
870       - src/system/makeml made aware of win32. (For use under cygwin
871            and other Unix-environments for windows.)
872    
873       - In Basis, fixed off-by-one error in win32-io.sml (function vecF)
874         which caused BinIO.inputAll to fail consistently.
875    
876    .bat scripts:
877    
878       Windows .bat scripts assume that SMLNJ_HOME is defined.
879    
880       - sml.bat, ml-yacc.bat, ml-lex.bat:  Driver scripts for standalone
881         applications (sml, ml-yacc, ml-lex).
882       - ml-build.bat: analogous to ml-build.
883       - config\install.bat:  Analogous to config/install.sh.  This requires
884         that SMLNJ_HOME is set and that Microsoft Visual C is ready to use.
885         (nmake etc. must be on the path, and vcvars32 must have been run.)
886         Moreover, sources for ml-lex and ml-yacc need to exist under src,
887         and the bootfile hierarchy must have been unpacked under
888         sml.boot.x86-win32.
889         The script is very primitive and does a poor job at error checking.
890         It only installs the base system, ml-lex, and ml-yacc.  No other
891         libraries are being installed (i.e., you get only those that
892         are part of the compiler.)
893       - link-sml.bat:  analogous to .link-sml, but not currently used
894    
895    Unrelated bug fixes:
896    
897      - ml-nlffigen now exports structures ST_* corresponding to incomplete
898        types.
899      - Added getDevice to PP/src/pp-debug-fn.sml.  (Would not compile
900        otherwise.)
901    
902    ----------------------------------------------------------------------
903    Name: Dave MacQueen (macqueen@cs.uchicago.edu)
904    Date: 2003/06/17
905    Tag: macqueen-20030617-bug895
906    Description:
907    
908    Modified compiler/Elaborator/print/pptype.sml to fix bug 895.
909    Tag will be used for new development branch (mcz-branch) for
910    use by MacQueen, (Lucasz) Zairek, and (George) Cao at uchicago.
911    
912    ----------------------------------------------------------------------
913    Name: Matthias Blume (blume (at) tti - c (dot) org)
914    Date: 2003/05/27 16:55:00 CDT
915    Tag: blume-20030527-polyeq
916    Description:
917    
918    Tried to eliminated most cases of polymorphic equality.
919    
920    ----------------------------------------------------------------------
921    Name: Matthias Blume (blume (at) tti - c (dot) org)
922    Date: 2003/05/21 17:45:00 CDT
923    Tag: blume-20030517-complete
924    Description:
925    
926    Two changes:
927    
928      1. Added a flag for controlling whether non-exhaustive bindings will
929         be treated as errors (default is false).
930      2. Cleaned up the *entire* source tree so that CMB.make goes through
931         without a single non-exhaustive match- or bind warning.
932    
933    ----------------------------------------------------------------------
934    Name: Matthias Blume (blume (at) tti - c (dot) org)
935    Date: 2003/05/17 10:20:00 CDT
936    Tag: blume-20030517-absyn
937    Description:
938    
939    1. Added cases for IF, WHILE, ANDALSO, and ORELSE to Absyn.
940    
941       This mainly affects the quality of error messages.  However, some
942       of the code is now more straightforward than before. (Treatment of
943       the above four constructs in translate.sml is much simpler than
944       the "macro-expansion" that was going on before.  Plus, the mach-
945       compiler no longer gets invoked just to be able to compile an
946       if-expression.)
947    
948    2. The ErrorMsg.Error exception is now caught and absorbed by the
949       interactive loop.
950    
951    ----------------------------------------------------------------------
952    Name: Allen Leung
953    Date: 2003/05/16 13:05:00 CDT
954    Tag: leunga-20030516-cygwin-runtime
955    Description:
956    
957        Ported the runtime system to cygwin, which uses the unix
958    x86-unix bin files.  Missing/buggy features:
959    
960       o getnetbyname, getnetbyaddr: these functions seem to be missing in
961         the Cygwin library.
962       o Ctrl-C handling may be flaky.
963       o Windows system calls and Windows I/O are not supported.
964    
965       A new set of binfiles is located at:
966    
967         http://www.dorsai.org/~leunga/boot.x86-unix.tgz
968    
969       This is only needed for bootstrapping the cygwin version of smlnj.
970       Other x86 versions can use the existing binfiles.
971    
972    ----------------------------------------------------------------------
973    Name: Matthias Blume
974    Date: 2003/04/08 15:42:00 CDT
975    Tag: blume-20030408-listpair
976    Description:
977    
978    1. Added a target 'mlrisc' to installer.
979    
980    2. Added missing elements to structure ListPair.
981    
982    ----------------------------------------------------------------------
983    Name: Allen Leung
984    Date: 2003/01/07 10:40:00 EST
985    Tag: leunga-20030107-int-rem
986    Description:
987    
988    Fixed a bug in Int.rem(x,y) where y is a power of 2 on x86.
989    The arguments to the SUBL instruction were swapped.
990    
991    ----------------------------------------------------------------------
992    Name: Matthias Blume
993    Date: 2002/12/12 16:25:00 EST
994    Tag: blume-20021212-risc-ra
995    Description:
996    
997    Fixed a serious bug in the rewrite code for FP spilling/reloading that
998    sent the RA into an infinite loop when floating point registers get
999    spilled.  (Because of this bug, e.g., nucleic stopped compiling between
1000    110.37 and 110.38.)
1001    There was another set of potential problems related to the handling of
1002    MLRISC annotations (but those did not yet cause real problems, apparently).
1003    
1004    ----------------------------------------------------------------------
1005    Name: Matthias Blume
1006    Date: 2002/12/06 22:40:00 EST
1007    Tag: blume-20021206-cm-fileid
1008    Description:
1009    
1010    Added a call of SrcPath.sync at the beginning of Parse.parse (in CM).
1011    This fixes the problem of CM getting confused by files that suddenly
1012    change their identity (e.g., by getting unlinked and recreated by some
1013    text editor such as vi).  There might be a better/cheaper/cleaner way
1014    of doing this, but for now this will have to do.
1015    
1016    ----------------------------------------------------------------------
1017    Name: Matthias Blume
1018    Date: 2002/10/28 09:50:00 EST
1019    Tag: blume-20021028-typecheck
1020    Description:
1021    
1022    Exported structure Typecheck from $smlnj/viscomp/core.cm.
1023    
1024    ----------------------------------------------------------------------
1025    Name: Matthias Blume
1026    Date: 2002/10/17 09:10:00 EDT
1027    Tag: Release_110_42
1028    Description:
1029    
1030    In good old tradition, there has been a slight hiccup so that we have
1031    to patch 110.42 after the fact.   The old release tag has been replaced
1032    (see below).
1033    
1034    The change solves a problem with two competing approaches the
1035    configuration problem regarding MacOS 10.1 vs. MacOS 10.2 which got in
1036    each other's way.
1037    
1038    This change only affects the runtime system code and the installer script.
1039    (No new bootfiles.)
1040    
1041    ----------------------------------------------------------------------
1042    Name: Matthias Blume
1043    Date: 2002/10/16 12:00:00 EDT
1044    Tag: Release_110_42_removed
1045    Description:
1046    
1047    New working release.  New bootfiles.
1048    
1049    ----------------------------------------------------------------------
1050    Name: Matthias Blume
1051    Date: 2002/10/10 13:10:00 EDT
1052    Tag: blume-20021010-ppc-divs
1053    Description:
1054    
1055    The mltree operator DIVS must be implemented with an overflow check on
1056    the PPC because the hardware indicates divide-by-zero using "overflow" as
1057    well.
1058    
1059    ----------------------------------------------------------------------
1060    Name: Matthias Blume
1061    Date: 2002/07/23 11:45:00
1062    Tag: blume-20020723-smlnj-home
1063    Description:
1064    
1065    Sml now senses the SMLNJ_HOME environment variable.  If this is set,
1066    then the bin dir is assumed to be in $SMLNJ_HOME/bin and (unless
1067    CM_PATHCONFIG is also set), the path configuration file is assumed
1068    to be in $SMLNJ_HOME/lib/pathconfig.  This way one can easily move
1069    the entire tree to some other place and everything will "just work".
1070    
1071    (Companion commands such as ml-build and ml-makedepend also sense this
1072    variable.)
1073    
1074    ----------------------------------------------------------------------
1075    Name: Matthias Blume
1076    Date: 2002/07/12 21:19:00 EDT
1077    Tag: blume-20020712-liveness
1078    Description:
1079    
1080    Exported two useful "step" functions from liveness module (MLRISC).
1081    
1082    ----------------------------------------------------------------------
1083    Name: Matthias Blume
1084    Date: 2002/07/05 16:00 EDT
1085    Tag: Release_110_41
1086    Description:
1087    
1088    New working release.  New bootfiles.
1089    
1090    ----------------------------------------------------------------------
1091    Name: Matthias Blume
1092    Date: 2002/07/05 10:25:00 EDT
1093    Tag: blume-20020705-btimp
1094    Description:
1095    
1096    Exported structure BTImp from $smlnj/viscomp/debugprof.cm so that
1097    other clients can set up backtracing support.
1098    
1099    ----------------------------------------------------------------------
1100    Name: Matthias Blume
1101    Date: 2002/06/25 17:23:00 EDT
1102    Tag: blume-20020625-fpmax
1103    Description:
1104    
1105    Fixed a bug in translation of INLMAX (and INLMIN) for the floating-point
1106    case.  (The sense of the isNaN test was reversed -- which made min and
1107    max always return their first argument.)
1108    
1109    ----------------------------------------------------------------------
1110    Name: Matthias Blume
1111    Date: 2002/06/11
1112    Tag: blume-20020611-unixpath
1113    Description:
1114    
1115    Back-ported OS.Path.{from,to}UnixPath from idlbasis-devel branch.
1116    
1117    ----------------------------------------------------------------------
1118    Name: Matthias Blume
1119    Date: 2002/06/10 16:35:00 EDT
1120    Tag: blume-20020610-ieeereal
1121    Description:
1122    
1123    I back-ported my implementation of IEEEReal.fromString from the
1124    idlbasis-devel branch so that we can test it.
1125    
1126    Another small change is that ppDec tries to give more information
1127    than just "<sig>" in the case of functors.  However, this code is
1128    broken in some mysterious way if the functor's body's signature
1129    has not been declared by ascription but gets inferred from the
1130    implementation.  This needs fixing...
1131    
1132    ----------------------------------------------------------------------
1133    Name: Matthias Blume
1134    Date: 2002/05/31
1135    Tag: blume-20020531-btrace-mode
1136    Description:
1137    
1138    Resurrected SMLofNJ.Internals.BTrace.mode.  (It accidentally fell by
1139    the wayside when I switched over to using Controls everywhere.)
1140    
1141    ----------------------------------------------------------------------
1142    Name: Lal George
1143    Date: 2002/05/23 12:21:40 EDT
1144    Tag: george-20020523-visual-labels
1145    Description:
1146    
1147    Labels are now displayed in the graphical output to make
1148    the fall-through and target blocks obvious.
1149    
1150    ----------------------------------------------------------------------
1151    Name: Matthias Blume
1152    Date: 2002/05/22 11:03:00 EDT
1153    Tag: blume-20020522-shrink
1154    Description:
1155    
1156    John tweaked yesterday's fix for 1131 to handle an out-of-memory
1157    situation that comes up when allocating huge arrays.
1158    
1159    ----------------------------------------------------------------------
1160    Name: Matthias Blume
1161    Date: 2002/05/21 16:00:00 EDT
1162    Tag: Release_110_40
1163    Description:
1164    
1165    New working release (110.40).  New bootfiles.
1166    
1167    [Also: John Reppy fixed GC bug 1131.]
1168    
1169    ----------------------------------------------------------------------
1170    Name: Matthias Blume
1171    Date: 2002/05/21 12:35:00 EDT
1172    Tag: blume-20020521-cmdoc
1173    Description:
1174    
1175    CM documentation update.
1176    
1177    ----------------------------------------------------------------------
1178    Name: Matthias Blume
1179    Date: 2002/05/21 10:55:00 EDT
1180    Tag: blume-20020521-misc
1181    Description:
1182    
1183    - John tweaked runtime to be silent on heap export (except when
1184      GC messages are on).
1185    - I added a few more things (cross-compiling versions of CMB) to
1186      config/preloads (as suggestions).
1187    
1188    ----------------------------------------------------------------------
1189    Name: Matthias Blume
1190    Date: 2002/05/20 22:25:00 EDT
1191    Tag: blume-20020520-controls
1192    Description:
1193    
1194    - Added ControlUtil structure to control-lib.cm.
1195    - Use it throughout.
1196    - Used Controls facility to define MLRISC controls (as opposed to
1197      registering MLRISC control ref cells with Controls after the fact)
1198    - Fixed messed-up controls priorities.
1199    
1200    * Removed again all the stuff from config/preloads that one wouldn't
1201      be able to preload at the time the initial heap image is built.
1202      (Many libraries, e.g., CML, do not exist yet at this time.  The
1203       only libraries that can be preloaded via config/preloads are those
1204       that come bundled with the bootfiles.)
1205    
1206    ----------------------------------------------------------------------
1207    Name: Matthias Blume
1208    Date: 2002/05/20 10:59:00 EDT
1209    Tag: blume-20020520-preloads
1210    Description:
1211    
1212    Added a lot of commented-out suggestions for things to be included
1213    in config/preloads.
1214    
1215    ----------------------------------------------------------------------
1216    Name: Allen Leung
1217    Date: 2002/05/18 14:20:00 EDT
1218    Tag: leunga-20020518-mdl
1219    Description:
1220    
1221    o Made the mdl tool stuff compile and run again.
1222    o I've disabled all the stuff that depends on RTL specifications; they
1223      are all badly broken anyway.
1224    
1225    ----------------------------------------------------------------------
1226    Name: Matthias Blume
1227    Date: 2002/05/17 16:49:00 EDT
1228    Tag: blume-20020517-controls
1229    Description:
1230    
1231    0. John Reppy made several modifications to the SML/NJ library.
1232       In particular, there is a shiny new controls-lib.cm.
1233    
1234    1. Pushed new controls interface through compiler so that everything
1235       compiles again.
1236    
1237    2. Added FormatComb and FORMAT_COMB to the CML version of the
1238       SML/NJ library (so that CML compiles again).
1239    
1240    3. Modified init scripts because XXX_DEFAULT environment variables
1241       are no longer with us.  (Boot-time initialization is now done
1242       using the same environment variables that are also used for
1243       startup-time initialization of controls.)
1244    
1245    ----------------------------------------------------------------------
1246    Name: Lal George
1247    Date: 2002/05/15 09:20:10 EDT
1248    Tag: george-20020515-pseudo-op-decls
1249    Description:
1250    
1251            All pseudo-ops emitted before the first segment declaration
1252    such as TEXT, DATA, and BSS directives are assumed to be global
1253    declarations and are emitted first in the assembly file. This is
1254    useful in a number of situations where one has pseudo-ops that are not
1255    specific to any segment, and also works around the constraint that one
1256    cannot have client pseudo-ops in the TEXT segment.
1257    
1258            Because no segment is associated with these declarations it is
1259    an error to allocate any space or objects before the first segment
1260    directive and an exception will be raised. However, we cannot make
1261    this check for client pseudo-ops.
1262    
1263            These top level declarations are a field in the CFG graph_info.
1264    In theory you can continue to add to this field after the CFG has been
1265    built -- provided you know what you are doing;-)
1266    
1267    ----------------------------------------------------------------------
1268  Name: Matthias Blume  Name: Matthias Blume
1269  Date: 2002/05/13 16:40:00 EDT  Date: 2002/05/13 16:40:00 EDT
1270  Tag: blume-20020513-pp-etc  Tag: blume-20020513-pp-etc

Legend:
Removed from v.1190  
changed lines
  Added in v.1539

root@smlnj-gforge.cs.uchicago.edu
ViewVC Help
Powered by ViewVC 1.0.0