Subject: Re: ARM ELF toolchain patches
To: Richard Earnshaw <rearnsha@buzzard.freeserve.co.uk>
From: Charles M. Hannum <root@ihack.net>
List: port-arm32
Date: 02/21/2001 16:23:31
On Thu, Feb 22, 2001 at 12:17:17AM +0000, Richard Earnshaw wrote:
>
> the ATPCS PIC model is quite significantly different from our own, and I'm
> not sure we want to use it. It does have the advantage that it extends to
> running code out of ROM, but that isn't a major issue for us. The major
> cost of ATPCS pic model is that it locks down a register at all times if
> shared libraries might be available, since the PIC base register must
> always point to a PIC table, even in non-pic code (so that we can look up
> a new pic table when we move to a new shared lib).
Could you explain this more? From your brief statement, it actually
sounds like this is exactly where I want to go.