From: Steven Rostedt <srostedt@redhat.com>
Date: Wed, 9 Feb 2011 18:27:22 +0000 (-0500)
Subject: ftrace: Do not test frame pointers if -mfentry is used
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~97^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=781d06248234e221edb560a18461d65808a8a942;p=pandora-kernel.git

ftrace: Do not test frame pointers if -mfentry is used

The function graph has a test to check if the frame pointer is
corrupted, which can happen with various options of gcc with mcount.
But this is not an issue with -mfentry as -mfentry does not need nor use
frame pointers for function graph tracing.

Link: http://lkml.kernel.org/r/20120807194059.773895870@goodmis.org

Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---

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