Re: Newbie Questions

[Georg Bauhaus <rm.tsoh-plus.nicif-bauhaus@maps.futureapps.de>]

Chris Yocum schrieb:
> Hi Everyone,
>     I have been playing with GNAT and Ada for a little bit (GNAT 4.2.1 
> (Ubuntu 4.2.1-5ubuntu6) on Ubuntu 7.10).  I have successfully written a 
> doubly linked list with generics so I think I am starting to have a feel 
> for the language.  However, my binaries have always seemed a bit large 
> compared to my C/C++ ones for similar data structures.  I looked in the 
> Wikibook FAQ about it and it instructed me to look at the various 
> compiler options.

The most important instruction should likely be to consider
how many bytes are important, really. For very small Ada
programs, the size of the run-time system might matter.


> ~/adastuff/testhello$ gnat make -Phello.gpr
> gcc-4.2 -c -O3 -gnatn -funroll-loops

Loop unrolling is not necessarily reducing code size,
if this is your goal?

> -fPIC -fprofile-arcs

Have you had a look at Chapter 9 of GCC 4.1, gcov? This
chapter should also have some info about the __gcov_* messages.