GSOC:disable newlibc reentrancy

[ralf.corsepius at rtems.org (Ralf Corsepius)]

On Thu, 2008-05-08 at 20:35 +0800, ?? wrote:
> 2008/5/8, Ralf Corsepius <ralf.corsepius at rtems.org>:
> >
> > On Thu, 2008-05-08 at 15:26 +0800, ?? wrote:
> > > 2008/5/8, Ralf Corsepius <ralf.corsepius at rtems.org>:
> > > >
> > > > On Thu, 2008-05-08 at 14:54 +0800, ?? wrote:
> > > > > Hi,
> > > > >
> > > > > I am trying to disable newlibc.c reentrant support.
> > > > Why do you want to do this?
> > >
> > > That is one of the size reduction ideas of tiny rtems project.
> >
> > OK, in verbose: What you are doing is absurd. It means to cut-off rtems
> > from newlib, turning all of newlib and the whole compiler unusable.
> >
> 
>    What is your suggestion?  And if newlibc reentrant extensions are
> not supposed to be an option,  why macro like
> CONFIGURE_DISABLE_NEWLIB_REENTRANCY exists in confdefs.h ?
Because somebody didn't switch on his brains.

Switching off reentrancy means using a different ABI inside of RTEMS
than the toolchain's libc. 

It means abusing the toolchain for a different compiler target.

Ralf