Subject: Re: ARM ELF TODO list
To: Ben Harris <firstname.lastname@example.org>
From: Richard Earnshaw <email@example.com>
Date: 04/24/2001 19:18:29
> On Tue, 24 Apr 2001, Matt Thomas wrote:
> > >* (gcc) Ensure 8-byte stack alignment on function entry
> > Why 8 byte?
> I was onder the impression that ATPCS required this, but I can't find the
> reference now. In <URL:http://mail-index.netbsd.org/port-arm32/2001/02/
> 21/0024.html>, Richard claimed:
> # 8-byte alignment of the stack is required by the ATPCS, however, it does
> # not specify that the stack should at all times remain strictly aligned (in
> # effect, the only requirement is that when control passes from one function
> # to another the stack is 8-byte aligned -- at other times, it is up to the
> # implementation).
It will (eventually) allow for ldrd instructions to be used for stack
operations on those architectures that support it (ARMv5).
> > >* (ld.elf_so) Support for ARM ELF
> > This I can do.
> Oh good.
Please ensure you get copyright disclaimers in place though. We don't
want to end up with the arm32/a.out situation again.