Re: 3.3 problem of -fzero-initialized-in-bss w/-ffreestanding

[Phil Edwards <phil at jaj dot com>]

On Tue, Jul 15, 2003 at 09:47:46AM +0200, Andreas Schwab wrote:
> Eric Botcazou <ebotcazou@libertysurf.fr> writes:
> 
> |> > I disagree that it should never have gotten into GCC 3.3; emacs has no
> |> > right to make random assumptions about memory layout, and should expect
> |> > to break regularly with new versions of GCC as long as it has such
> |> > assumptions.
> |> 
> |> I would not disagree with you disagreeing, had we not written this:
> |> http://gcc.gnu.org/gcc-3.3/criteria.html
> 
> The portability of Emacs ends at the point where undump is called.

Absolutely.  The unexec technique is extraordinarily fragile.  They've always
know this, and have been willing to keep modifying their code.  If they
weren't willing, Emacs would die a quick death for its failure to install.


Phil

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