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From: kassover@jupiter.crd.ge.com (David Kassover)
Newsgroups: comp.os.vms,comp.lang.c,comp.unix.questions
Subject: Re: porting C programs from UNIX to VMS
Message-ID: <8119@crdgw1.crd.ge.com>
Date: 1 Jun 90 15:11:27 GMT
References: <9528@tank.uchicago.edu> <46365@iuvax.cs.indiana.edu>
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In article <46365@iuvax.cs.indiana.edu> mdchaney@bronze.ucs.indiana.edu (M Darrin Chaney) writes:
>In article <9528@tank.uchicago.edu> phd_ivo@gsbacd.uchicago.edu writes:
>>Hint No. 1: the debugger---although generally quite nice---can't restart
>>a program :-(
>
>Hmm, I can't figure out what you're trying to say with this.  If you mean
>VMS doesn't dump a core, you need to use the command "Set Process/Dump".
>In order to debug that dump file, you need to use "Analyze/Proc/Full file".
>Of course, to get any real debugging pleasure, you have to compile and
>link for debugging, but it works just fine otherwise.


Some debuggers I have seen, and I am not experienced with them,
and no they weren't for VMS, or Unix, either, have the ability to
restart the program from the beginning.

I'm sure there's a reason the VMS Debugger does not have this
feature (a minor inconvenience), good bad indifferent or ugly.

If anyone reading this *knows* the reason, I'm sure we'd all like
to hear about it.


As long as we are pounding on the debugger, does anyone know,
perhaps, if in a future version the user will be able to control
the symbol table load algorithm?  On my "favorite" image to
debug, it takes about 10-20 minutes from my entering run/debug
until I see the DBG> prompt.  DEC's current answer, via my sysop,
is "Add more memory/raise the working set".  I'm surprised they
didn't suggest a 9000  8-)

--
David Kassover             "Proper technique helps protect you against
kassover@ra.crd.ge.com	    sharp weapons and dull judges."
kassover@crd.ge.com			F. Collins