* Re: gcc for embedded: Worth it?
@ 1998-06-29 21:31 Ken
0 siblings, 0 replies; 2+ messages in thread
From: Ken @ 1998-06-29 21:31 UTC (permalink / raw)
To: egcs; +Cc: c++-embedded
Martin Boyer wrote:
> "Martin Weiss" <firstname.lastname@example.org> writes:
> > Who has ever tried to compile a crosscompiler under linux to run
> > under win32 and to target 68k? Experiences with c++ for embedded?
> I didn't have time to built the crosscompiler myself, so I had my
> company purchase GNUPro, from Cygnus Solutions. This is for an Intel
> i960 target on a Windows NT 4.0 host.
> After a few weeks of early problems, caused mainly by problems with
> segmentation faults from an older version of cygwin32, I can say this
> was a very good decision. The folks at Cygnus are very competent and
> diligent. The tools are good and easy to use (I'm a Unix old-timer).
> As for C++ for embedded, we had a protocol library that was using
> templates and the Standard Template Library. That never worked, most
> probably due to problems with constructors or structure
> initialization. I can't blame anyone; the protocol code was developed
> on Visual C++ 5.0 and used extensions that weren't in the C++ draft
> standard. To make a long story short, the parts that used templates
> were re-implemented without templates, and that worked. We have since
> added code which used templates in a limited way, and that worked as
> well. Go figure.
> Overall, I'd say that GNUPro can generate useful, embeddable, code
> from C++ sources, using inherited classes, constructors, templates (to
> some extent), etc. I would say that using C++ allowed for a very
> generic protocol library to be created (the same code runs in Visual
> C++ on the control station, and in GNUPro's C++ in the embedded
> system), at the cost of at least double the ROM and RAM requirements
> over a "low-tech" C implementation. That is a lot when you have 512k
> of each.
What accounted for the doubling in size going from C to C++?
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1998-06-29 21:31 gcc for embedded: Worth it? Ken
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1998-06-26 21:22 ` Ken
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