This is the mail archive of the
gdb-patches@sources.redhat.com
mailing list for the GDB project.
Re: [rfa?] Add frame_align(); Was: ARM stack alignment on hand called functions
- From: Richard Earnshaw <rearnsha at arm dot com>
- To: Andrew Cagney <ac131313 at redhat dot com>
- Cc: Richard dot Earnshaw at arm dot com, Kris Warkentin <kewarken at qnx dot com>, gdb-patches at sources dot redhat dot com
- Date: Thu, 28 Nov 2002 09:26:19 +0000
- Subject: Re: [rfa?] Add frame_align(); Was: ARM stack alignment on hand called functions
- Organization: ARM Ltd.
- Reply-to: Richard dot Earnshaw at arm dot com
> +/* Ensure that the ARM's stack pointer has the correct alignment for a
> + new frame. */
> +static CORE_ADDR
> +arm_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr)
> +{
> + return (addr & -16);
> +}
Yuck, two's complement assumption. I much prefer ~0xf in this case.
But why so much. The maximum stack alignment you'll see on an ARM is 8
bytes.
R.