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Date:      Tue, 5 Jun 2012 18:19:58 +0200
From:      Fabien Thomas <fabien.thomas@netasq.com>
To:        freebsd-arm@freebsd.org
Subject:   [RFC] hwpmc backtrace support
Message-ID:  <6353B436-2225-4297-985A-A892962D68FC@netasq.com>

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	Hi,

I've added stack parsing to get the backtrace for hwpmc.
I've assumed there is no corner case where fp is not is valid.

Comment welcome.

Patch:
http://www.freebsd.org/~fabient/patch-hwpmc_arm_rev2

Result:
http://people.freebsd.org/~fabient/pmc_arm_bt.png

Fabien
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