From owner-freebsd-arch@FreeBSD.ORG  Wed May  4 22:17:16 2005
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Date: Wed, 4 May 2005 18:16:06 -0400 (EDT)
From: Jeff Roberson <jroberson@chesapeake.net>
To: arch@freebsd.org
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Subject: printflike vs kprintflike
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I have a patch from Neal Fachan of isilon that implements a new gcc
attribute 'kprintflike' that is used in place of 'printflike' in the
kernel.  This is done to stop us from leaking kernel printf formats into
userspace.  Apparently -fformat-extensions is broken in gcc3.  This also
stops our formats from leaking into any other custom formats defined in
gcc.

This is available at http://www.chesapeake.net/~jroberson/kprintf.diff

This patch was made against 5.4 sources with some local changes.  I can
update it to 6.0, but I'm hoping some compiler guru will pick it up and
commit it.

Thanks,
Jeff