From: Nicolas Pitre <nico@cam.org>
Date: Thu, 22 Jun 2006 21:18:45 +0000 (+0100)
Subject: [ARM] 3626/1: ARM EABI: fix syscall restarting
X-Git-Tag: v2.6.18-rc1~1081^2~221^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f606a6ff222dc7dceeb4d0e214ce4f55d9c6b0e6;p=pandora-kernel.git

[ARM] 3626/1: ARM EABI: fix syscall restarting

Patch from Nicolas Pitre

The RESTARTBLOCK case currently store some code on the stack to invoke
sys_restart_syscall.  However this is ABI dependent and there is a
mismatch with the way __NR_restart_syscall gets defined when the kernel
is compiled for EABI.

There is also a long standing bug in the thumb case since with OABI the
__NR_restart_syscall value includes __NR_SYSCALL_BASE which should not
be the case for Thumb syscalls.

Credits to Yauheni Kaliuta <yauheni.kaliuta@gmail.com> for finding the
EABI bug.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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