From: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Date: Wed, 28 May 2008 18:50:07 +0000 (+0200)
Subject: avr32: Fix sigaltstack behaviour
X-Git-Tag: v2.6.27-rc1~1108^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c1b90a1e964f72bde88511e5cfe1c04318ff3d1;p=pandora-kernel.git

avr32: Fix sigaltstack behaviour

A signal handler should be able to change the signal stack used for the
next signal by altering the ucontext_t passed as a parameter to the
handler. This does not currently work on avr32 since it doesn't update
the in-kernel signal context from the ucontext_t upon signal handler
return.

Fix it by adding a call to do_sigaltstack() from sys_rt_sigreturn(),
bringing it in line with most other architectures.

Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
[haavard.skinnemoen@atmel.com: changed patch description]
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
---

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