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Re: ARM ISR routines.
- To: Richard Henderson <rth at redhat dot com>
- Subject: Re: ARM ISR routines.
- From: Richard Earnshaw <rearnsha at arm dot com>
- Date: Wed, 27 Jun 2001 14:39:42 +0100
- cc: Nick Clifton <nickc at redhat dot com>, gcc-patches at gcc dot gnu dot org, Richard dot Earnshaw at arm dot com
- Organization: ARM Ltd.
- Reply-To: Richard dot Earnshaw at arm dot com
> On Sat, Jun 23, 2001 at 08:26:12AM +0100, Nick Clifton wrote:
> > I wonder which would be better, disabling the use of alloca, or
> > implementing the contortions necessary to establish a frame pointer
> > without corrupting any registers ?
>
> Certainly the later.
Thus speaks the person who doesn't have to write the code :-)
Someday I'd like to drop support for APCS frames and move to the ATPCS
which doesn't generally require a frame pointer; then GCC could do its own
thing when it needs a "frame pointer" for its own internal reasons.
However, that day isn't on us yet...
R.