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From: Russell King - ARM Linux <linux@armlinux.org.uk>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Aaro Koskinen <aaro.koskinen@iki.fi>,
	Petr Cvek <petrcvekcz@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Andrea Adami <andrea.adami@gmail.com>,
	Romain Izard <romain.izard.pro@gmail.com>,
	Sven Schmidt <4sschmid@informatik.uni-hamburg.de>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] ARM: add a private asm/unaligned.h
Date: Mon, 30 Oct 2017 16:59:07 +0000	[thread overview]
Message-ID: <20171030165907.GB27404@n2100.armlinux.org.uk> (raw)
In-Reply-To: <CAKv+Gu-wOaxV+O5hkDxfvOY7gy5KwnCvvsd6XGTwfnro=dVbcw@mail.gmail.com>

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

  parent reply	other threads:[~2017-10-30 16:59 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-20 20:01 [PATCH] ARM: add a private asm/unaligned.h Arnd Bergmann
2017-10-20 20:22 ` Ard Biesheuvel
2017-10-23 15:04 ` Romain Izard
2017-10-27 15:19 ` Gregory CLEMENT
2017-10-27 15:27   ` Russell King - ARM Linux
2017-10-30 13:48     ` Gregory CLEMENT
2017-10-30 14:55       ` Ard Biesheuvel
2017-10-30 15:05         ` Gregory CLEMENT
2017-10-30 15:07           ` Ard Biesheuvel
2017-10-30 15:09             ` Gregory CLEMENT
2017-10-30 15:20               ` Ard Biesheuvel
2017-10-30 15:33                 ` Gregory CLEMENT
2017-10-30 15:35                   ` Ard Biesheuvel
2017-10-30 15:40                     ` Gregory CLEMENT
2017-10-30 16:59                     ` Russell King - ARM Linux [this message]
2017-10-30 15:55                   ` Russell King - ARM Linux
2017-10-30 16:04                     ` Gregory CLEMENT
2017-10-30 15:48       ` Russell King - ARM Linux
2017-10-30 16:01         ` Gregory CLEMENT
2017-10-30 16:12           ` Russell King - ARM Linux
2017-10-30 16:24             ` Gregory CLEMENT
2017-10-30 16:38               ` Russell King - ARM Linux
2017-10-31 12:47                 ` Russell King - ARM Linux
2017-10-31 12:57                   ` Ard Biesheuvel
2017-10-31 13:22                     ` Gregory CLEMENT
2017-11-01 15:57                       ` Ard Biesheuvel
2017-11-01 18:00                         ` Russell King - ARM Linux
2017-11-01 18:02                           ` Ard Biesheuvel
2017-11-01 18:11                             ` Russell King - ARM Linux
2017-11-01 18:20                               ` Ard Biesheuvel
2017-11-01 19:10                                 ` Russell King - ARM Linux
2017-10-30 15:09     ` Arnd Bergmann
2017-10-30 15:50       ` Russell King - ARM Linux
2017-10-30 17:01         ` Arnd Bergmann
2017-10-30 17:13           ` Russell King - ARM Linux

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