Subject:
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Re: NQC v. LegOS / size
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 12 Feb 1999 19:28:11 GMT
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Original-From:
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John A. Tamplin <jat@Traveller+ihatespam+.COM>
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Viewed:
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2298 times
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On Wed, 10 Feb 1999, Gavin Smyth wrote:
> The maths routines are somewhere in libgcc.a, though I think there's a
> single file with all the routines instead of several small ones, so you may
> end up wasting memory. In addition, you probably need to access libc.a too
> since some of the libgcc.a routines use, say, memcpy. (It may be possible to
> inline some of the offending routines by specifying higher optimisation
> levels to the compiler, "-O3" say, but I haven't tried this.) Anyway, when
> building legOS things, I think a couple of options are: find the libgcc
> source and copy the bits you need into your own files; or add the two
> libraries I mentioned above to the link statement in the make file.
No, they are not in one object file. They are in a single source file,
but if you look at the build process it defines a symbol like L_cmpsi3
and compiles/assembles it separately for each function.
John A. Tamplin Traveller Information Services
jat@Traveller.COM 2104 West Ferry Way
256/705-7007 - FAX 256/705-7100 Huntsville, AL 35801
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Re: NQC v. LegOS / size
|
| The maths routines are somewhere in libgcc.a, though I think there's a single file with all the routines instead of several small ones, so you may end up wasting memory. In addition, you probably need to access libc.a too since some of the libgcc.a (...) (25 years ago, 10-Feb-99, to lugnet.robotics)
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