From: Richard Mortimer <richm@oldelvet.org.uk>
Date: Mon, 9 Jan 2006 22:35:50 +0000 (-0800)
Subject: [SPARC64]: Fix ptrace/strace
X-Git-Tag: v2.6.16-rc1~659^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=695ca07bf1036091eff2f11d2fe5f1585c2ac8c8;p=pandora-kernel.git

[SPARC64]: Fix ptrace/strace

Don't clobber register %l0 while checking TI_SYS_NOERROR value in
syscall return path.  This bug was introduced by:

db7d9a4eb700be766cc9f29241483dbb1e748832

Problem narrowed down by Luis F. Ortiz and Richard Mortimer.

I tried using %l2 as suggested by Luis and that works for me.

Looking at the code I wonder if it makes sense to simplify the code
a little bit. The following works for me but I'm not sure how to
exercise the "NOERROR" codepath.

Signed-off-by: David S. Miller <davem@davemloft.net>
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