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Re: word alignment for non fp/sp register pointers for SPARClet port
- From: Richard Henderson <rth at redhat dot com>
- To: Nitin Gupta <ngupta at GlobespanVirata dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Wed, 27 Aug 2003 09:28:41 -0700
- Subject: Re: word alignment for non fp/sp register pointers for SPARClet port
- References: <IDEAKDGJLGFCFODOJGGIOELHCHAA.firstname.lastname@example.org>
On Wed, Aug 27, 2003 at 08:31:50PM +0530, Nitin Gupta wrote:
> I know that this is not inline with SPARC (hence SPARClet)
> ABI, but our malloc and all of system is based on old
> SPARC ABI. Till now we were using egcs 1.1 which is based
> on old sparclet ABI. Now since we are migrating to GCC 3.2
> and latter GCC 3.3 we are facing this problem. Since it
> is not possible to change the whole system s/w so soon,
> I'm trying to fix GCC as per old ABI.
The "old abi" also assumed double-word alignment for double-word
values. There did exist peepholes to do the same thing that the
current compilers do; if they weren't as effective, that was a bug.
As for the rest of this, it would *really* be much less effort to
just replace the malloc on your system with something not broken.
You don't have to replace "the whole system s/w", just provide a