Re: Some ways to save space on the floppies

[Goswin von Brederlow <brederlo@informatik.uni-tuebingen.de>]

Erik Andersen <andersen@codepoet.org> writes:

> On Tue Nov 18, 2003 at 11:47:38AM +0100, Goswin von Brederlow wrote:
> > Erik Andersen <andersen@codepoet.org> writes:
> > > So yes, with uClibc there will be a missing weak of main()
> > > if you include crt1.o into your calculations.
> > 
> > Why weak? If you link crt1.o against something without a main your
> > doing something wrong and are headed towards desaster.
> 
> It is weak because it it not a function call.  It is just there
> to ensure the linker does the Right Thing(tm).  We want the
> symbol there so we can be sure main() is linked in the app even
> when it is hiding within an archive (.a), but we do not want to
> supply the actual main() function, since apps work better when
> using their own.  :-)

Can't you use something like this?

int main(int argc, char **argv);
int (*real_main)(int argc, char **argv) = main;

MfG
        Goswin