K 10
svn:author
V 3
wma
K 8
svn:date
V 27
2016-04-06T05:13:36.024877Z
K 7
svn:log
V 365
Implement dtrace_getupcstack in ARM64

Allow using DTRACE for performance analysis of userspace
applications - the function call stack can be captured.
This is almost an exact copy of AMD64 solution.

Obtained from:         Semihalf
Sponsored by:          Cavium
Reviewed by:           emaste, gnn, jhibbits
Differential Revision: https://reviews.freebsd.org/D5779

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