From: Lin Yongting <linyongting@gmail.com>
Date: Wed, 26 Nov 2014 13:33:49 +0000 (+0100)
Subject: ARM: 8223/1: Add unwinding support for __memzero function
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~102^2~1^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=20cb6abfe0062693183eb2a85f7c73792e96407f;p=pandora-kernel.git

ARM: 8223/1: Add unwinding support for __memzero function

The __memzero function never had unwinding annotations added.
Currently, when accessing invalid pointer by __memzero occurs the
backtrace shown will stop at __memzero or some completely unrelated
function. Add unwinding annotations in hopes of getting a more
useful backtrace in following cases:
1. die on accessing invalid pointer by __memzero
2. kprobe trapped at any instruction within __memzero
3. interrupted at any instruction within __memzero

Signed-off-by: Lin Yongting <linyongting@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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