- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Port this to FreeBSD. We miss some suword functions, so we use copyout.

Sponsored by: The FreeBSD Foundation
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M sys/fasttrap_impl.h

Merge from vendor-sys/opensolaris:
* add fasttrap files

Import fasttrap_impl.h header from OpenSolaris.