Re: Reducing the size of C++ executables - eliminating malloc

[Mark Mitchell <mark at codesourcery dot com>]

Michael Eager wrote:

> Preallocating space is a good thing, particularly if the size
> can be computed at compile time.  It's a little bit more awkward
> if it has to be calculated at link time.

It's a bit awkward, but it's also one of the clever tricks ARM's
proprietary linker uses, and we should use it too!

> Generating __gxx_personality_v0 is suppressed with the -fno-exceptions
> flag, but it would seem better if this symbol were only generated
> when catch/throw was used.  This happens in cxx_init_decl_processing(),
> which is called before it's known whether or not EH is really needed.

I believe that you need the personality routine if you will be unwinding
through a function, which is why -fno-exceptions is the test.

-- 
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713