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Subject: Re: svn commit: r296428 - head/sys/boot/common
To: Warner Losh <imp@bsdimp.com>, Dimitry Andric <dim@freebsd.org>
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From: Peter Grehan <grehan@freebsd.org>
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Date: Mon, 7 Mar 2016 11:01:59 -0800
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> Are the CFI directives so that DTRACE works, or is there some other reason?

  It allows gdb to backtrace across exception frames.

later,

Peter.