K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2018-12-13T20:09:38.477115Z
K 7
svn:log
V 327
dtrace: fix userspace access on boxes with SMAP

dtrace has its own routines which were not updated after SMAP support got
implemented. Use ifunc just like for other routines.

This in particular fixes ustack().

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D18542

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