sys/sdt.h: Define SET_ERROR(err) macro in sys/sdt.h.

err must be an errno(3) EFOO constant. SET_ERROR(err) yields err,
with a dtrace probe sdt:::set-error(err), so you have a better chance
of findi

sys/sdt.h: Define SET_ERROR(err) macro in sys/sdt.h.

err must be an errno(3) EFOO constant. SET_ERROR(err) yields err,
with a dtrace probe sdt:::set-error(err), so you have a better chance
of finding where EFOO first turned up in some twisty maze of kernel
logic.

Don't limit this to the opensolaris source compat layer -- this will
enable us to use it throughout the regular kernel sources, not just
zfs.

PR kern/58378

XXX kernel revbump -- moves sdt:::set-error probe symbol definition
from solaris.kmod to main netbsd kernel

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bsd.kmodule.mk: Build modules with KDTRACE_HOOKS if MKDTRACE=yes.

KNF

merge a new version of the CDDL dtrace and ZFS code.
this changes the upstream vendor from OpenSolaris to FreeBSD,
and this version is based on FreeBSD svn r315983.

in addition to the 10 years of im

merge a new version of the CDDL dtrace and ZFS code.
this changes the upstream vendor from OpenSolaris to FreeBSD,
and this version is based on FreeBSD svn r315983.

in addition to the 10 years of improvements from upstream,
this version also has these NetBSD-specific enhancements:
- dtrace FBT probes can now be placed in kernel modules.
- ZFS now supports mmap().

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DTrace: Add support for a simulated solaris_cpu[] data structure per
cpu. Needed for the FBT provider amongst other features.