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Date: Wed, 24 Apr 2013 06:21:37 -0700 (PDT)
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Subject: Re: Gnat Version 4.5.4 v protected objects v tasking
From: stvcook53@gmail.com
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Date: 2013-04-24T06:21:37-07:00
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On Tuesday, April 23, 2013 5:03:12 PM UTC-5, Simon Wright wrote:
> stvcook53@gmail.com writes:
> 
> 
> 
> > Symptoms out of 4.5.4 relate to the tasking portion of the Ada
> 
> > run-time system, and relate to protected objects when located outside
> 
> > the main program.  Symptoms manifest as a silent hang when a program
> 
> > is run that includes the tasking portion of the runtime system.  The
> 
> > gdb debugger exhibits a SIGSEGV while in the run-time package
> 
> > System.Secondary_Stack.  Symptom occurs at the end of elaboration
> 
> > before control enters main program.  Please comment on sample code or
> 
> > planned, related Gnat updates.
> 
> 
> 
> No problems here on Mac OS X - x86_64 - with GNAT GPL 2011/2 or with FSF
> 
> 4.8.0.
> 
> 
> 
> I don't see anything wrong with your code.
> 
> 
> 
> The symptoms sound as though the tasking part of the RTS isn't getting
> 
> initialised (or not properly, anyway).
> 
> 
> 
> I had related symptoms when I had a library that involved tasking and a
> 
> main program that didn't; you don't have a separate library, but could
> 
> you perhaps try linking with the static RTS vs linking with the dynamic
> 
> RTS? If you're using gnatmake, add "-bargs -static" or "-bargs -shared",
> 
> or if you're running gnatbind by hand it's "gnatbind -static" or
> 
> "gnatbind -shared".


Thanks Simon.  My coworker will be happy that you work with Mac.  We'll check it out.

Steve