Re: [PATCH] ARM: add a private asm/unaligned.h

From: Russell King - ARM Linux
Date: Mon Oct 30 2017 - 12:59:34 EST


On Mon, Oct 30, 2017 at 03:35:38PM +0000, Ard Biesheuvel wrote:
> Well, that is disappointing. This means the ASSERT() does not work
> reliably, and we're back to using a bunch of shell scripts to check
> whether _edata appears at the end of the image.

That didn't work too well here. While it did correctly detect some
instances:

zImage size (8008200) disagrees with linked size (8008192)

it also misdetected others:

zImage size (13348808) disagrees with linked size (-928003328)

It seems to suggest that _magic_end - _magic_start = 0xc8afcb00.
zImage size is 0xcbafc8. That points at the addresses output by
"nm" being dependent on the endian-ness of the image, which to
me seems utterly insane.

I wouldn't be surprised if that is toolchain version dependent
as well.

IMHO, our toolchain is a mess!

--
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up
According to speedtest.net: 8.21Mbps down 510kbps up