[M3devel] NT386 environment variables (new NT386 snapshots)

Jay jayk123 at hotmail.com
Sat May 10 12:01:09 CEST 2008


 > I have both console and gui programs built using 4.1 that do pull stuff out of the environment.
I assume you weren't using RTArgs?
 
Everything good, move along?
 
(Not "everything", there are still m3tests failures..though I guess -- maybe also try them with 3.6, 4.1, 5.1...)
 
 - Jay


Date: Sat, 10 May 2008 05:46:16 -0400From: rcoleburn at scires.comTo: m3devel at elegosoft.comSubject: Re: [M3devel] NT386 environment variables (new NT386 snapshots)

Jay:
 
Ok, I've added the sleep.
Here are the new results using my newly rebuilt cm3 and my old v4.1:
 
v4.1:  pgm.exe @M3novm abc def ghi

v5.7:  pgm.exe abc def ghi
 
1.  cm3 4.1, VS 2005, GUI mode, popup with runtime error crash message
 
2.  cm3 4.1, VS 2005, console mode, no popup, output shows "def¿5;"
 
3.  cm3 d5.7.0, VS 2008, GUI mode, popup with output shows "def=ExitCode=00000000"
 
4.  cm3 d5.7.0, VS 2008, console mode, no popup with output shows "def=ExitCode=00000000"
 
Regards,
Randy>>> Jay <jayk123 at hotmail.com> 5/10/2008 5:04 AM >>>Randy,You can make the popup stick around, put in WinBase.Sleep(10000), or run under a debugger.Since 5.7 is crashing, I assume you don't have the fix I very recently commited? Or the last point.I assume if 5.7 doesn't crash, you are satisfied. I forgot to tell you -- make sure you pass a few command line options to the program, like NT386\pgm.exe abc def ghi.  - Jay


Date: Sat, 10 May 2008 04:46:54 -0400From: rcoleburn at scires.comTo: jayk123 at hotmail.comSubject: RE: [M3devel] NT386 environment variables (new NT386 snapshots)
Jay:
 
Here are my results using the program you supplied:
 
1.  cm3 v4.1, VS 2005, GUI mode, get a pop-up dos window, but program crashes
 
2.  cm3 v4.1, VS 2005, console mode, program crashes
 
3.  cm3 v.d5.7.0, VS 2008 GUI mode, get a pop-up window but it disappears too fast to see any contents
 
4.  cm3 v.d5.7.0, VS 2008 console mode, program crashes
 
Regards,
Randy>>> Jay <jayk123 at hotmail.com> 5/9/2008 3:44 AM >>> > these problems (pixmaps, buildstandalone, environ vars, serial i/o, etc...  Ok, here is the story with environment variables.I tested 3.6 and current, gui and console.This is the program:C:\dev2\j\m3\3>type src\m3makefileimport ("m3core")import ("libm3")m3_option ("-gui")     twiddle this line in and out with a commentimplementation ("Main")program ("pgm") C:\dev2\j\m3\3>type src\Main.m3MODULE Main;IMPORT IO;IMPORT RTArgs; BEGIN(* IO.Put just crashes in 3.6 gui apps *)  IO.Put(RTArgs.GetArg(2));  IO.Put(RTArgs.GetEnv(2)); (* use this for gui apps *)  EVAL RTArgs.GetArg(2);  EVAL RTArgs.GetEnv(2);END Main.In 3.6 console apps, RTArgs.GetEnv returns garbage. That makes sense from the code.In current console apps, GetEnv works.In current gui apps, GetEnv access violates, or returns an invalid pointer.  This also makes sense from the code.Randy, does this actually work for you?I'd be quite surprised.I haven't tried 4.1 yet, just 3.6 and current.I will apply an easy fix. - Jay


Date: Thu, 8 May 2008 16:17:37 -0400From: rcoleburn at scires.comTo: m3devel at elegosoft.comSubject: Re: [M3devel] new NT386 snapshots
Jay:
 
I have both console and gui programs built using 4.1 that do pull stuff out of the environment.  I've not noticed any problems with either mode.
 
>From my perspective, the old 4.1 seems more reliable than the current system in a number of respects.  I have a new project with a hard deadline that I would like to use the new cm3 system for, but until these problems (pixmaps, buildstandalone, environ vars, serial i/o, etc.) can be resolved, I'm going to keep using 4.1 for my production work.
 
Regards,
Randy>>> Jay <jayk123 at hotmail.com> 5/8/2008 2:46 PM >>>http://modula3.elegosoft.com/cm3/uploaded-archives/ http://modula3.elegosoft.com/cm3/uploaded-archives/cm3-std-WIN32-NT386-d5.7.0.ziphttp://modula3.elegosoft.com/cm3/uploaded-archives/cm3-min-WIN32-NT386-d5.7.0.ziphttp://modula3.elegosoft.com/cm3/uploaded-archives/cm3-std-WIN32-NT386-d5.7.0-symbols.zip These should have:  latest quake extensions   set relation fixes   other set fixes revealed through dynamic linking of one regression test   hypothetical ability to cross-build to AMD64_LINUX, AMD64_DARWIN    one jmpbuf size for all NT386 configurations (NT386, NT386GNU, NT386MINGNU)  Built with Visual C++ 9.0 Express, so you'll want:http://www.microsoft.com/downloads/details.aspx?familyid=9B2DA534-3E03-4391-8A4D-074B9F2BC1BF&displaylang=en  Still more work to do though, e.g. assertion failures in unit tests, pixmap.. Fuller disclosure:Something is leaking memory on my system such that "everything" starts "failing" and I have to reboot.This isn't Modula-3 related.Hopefully these files aren't damaged as a result.Must be some buggy driver or something.. Aside: The environment variable thingy has been bugging me a long time and I finally looked deeper at it.It appears broken in CM3 4.x. I didn't check 3.x yet.I'm still mulling a fix, and haven't run a repro of the break, but it's not a big deal either way.Basically console apps use main that takes char** and gui apps use WinMain that doesn't get environment variables but the generated code calls GetEvironmentStrings() which returns null separated strings.Must be that hardly anyone uses environment variables in Modula-3 on Win32 for this to have lingered so long, at least gui apps.  - Jay
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