Re: Hello World 217Kb ?

[Freejack <freejack@nowhere.net>]

On Tue, 23 Nov 2004 22:31:57 +0100, Adrien Plisson wrote:

> stephane richard wrote:
>> yes, it's in windows.  There was no project however...just the adb file and 
>> I compiled it....what settings do you have? 
> 
> i don't really know, i compiled it using GPS. i asked to remove debug 
> informations and to strip executable.
> 
> also, i asked for a static runtime, which lead to a 67kB large file. i 
> suspect it would be less with a shared runtime.
> 
> btw, it's very strange that the executable still needs "msvcrt.dll" 
> which is the SHARED c runtime of microsoft. for comparison, i did the 
> same thing in C++ using Visual Studio and STL. the executable is 60kB 
> large, but only needs kernel32.dll and NO C runtime dll.
> 
> maybe someone with more experience with GNAT can explain why the C 
> runtime is still needed.

Usually what you need (at least far as I've discovered) is a customized C
library to link with, OR meticulous representation packages in your
project. For example, I've been doing some demoscene hacking, and linking
with the static Diet libc (as opposed to the vanilla glibc) cuts the size
of the executable by at least %60 to %80. 
I don't know if there are similiar libraries available for Windows, but
one should be able to cut their executable size dramatically by prudent
use of customized libs and static linking.

A runtime environment may or may not be necessary(usually NOT) for either
Ada or C. I'm currently working on my own space/speed optimized Ada libs
for my own projects. Wanna see just how low I can go. Stripping out the
runtime is saving plenty of resources, but it's also making me work a bit
harder on not screwing up. So beware. ;->

Freejack