Make MLINKS text match text in bsd.man.mk added by wosch@ in 1996.
Create a vimage.9 link to vnet.9

Requested by: glebius
In conf_apply() remove iSCSI ports from kernel before removing LUNs.

Previous order confused initiators with messages about "removed" LUNs
during simple ctld restart without any real config change.  After this
commit initiators only reestablish lost connection, receive "Power on
occurred" UNIT ATTENTION status and continue normal operation.

MFC after:	1 month
Make cfiscsi_offline() synchronous, waiting for connections termination
before return.  This should make ctld restart more clean and predictable.

MFC after:	2 weeks
Add a guard against attempting to invoke the buildenv target with -j# as
that silently exits rather than doing something useful.

MFC after:	1 week
Sponsored by:	DARPA, AFRL
Slightly alter the handling of LOCAL_LIB_DIRS to skip addition of
directories in LOCAL_LIB_DIRS if they are subdirectories of directories
listed in LOCAL_DIRS.  This allows a hierarchy like:

	foo
	foo/lib
	foo/usr.bin
	foo/usr.sbin

to be supported with LOCAL_DIRS=foo LOCAL_DIRS=foo/lib.

MFC after:	1 week
Sponsored by:	DARPA, AFRL
Add FPU support for MIPS setjmp(3)/longjmp(3).

This change saves/restores the callee-saved MIPS floating point
registers as documented by the o32/n32/n64 spec ("MIPSpro N32
ABI Handbook", Table 2-1) for the _setjmp(3), _longjmp(3),
setjmp(3) and longjmp(3) C library functions.  This is only
included when the C library is built with hardware floating point
support (or when "SOFTFLOAT" is not defined).

Submitted by:	sson
MFC after:	1 month
Sponsored by:	DARPA, AFRL
Improve support for XSAVE with debuggers.
- Dump an NT_X86_XSTATE note if XSAVE is in use. This note is designed
  to match what Linux does in that 1) it dumps the entire XSAVE area
  including the fxsave state, and 2) it stashes a copy of the current
  xsave mask in the unused padding between the fxsave state and the
  xstate header at the same location used by Linux.
- Teach readelf() to recognize NT_X86_XSTATE notes.
- Change PT_GET/SETXSTATE to take the entire XSAVE state instead of
  only the extra portion. This avoids having to always make two
  ptrace() calls to get or set the full XSAVE state.
- Add a PT_GET_XSTATE_INFO which returns the length of the current
  XSTATE save area (so the size of the buffer needed for PT_GETXSTATE)
  and the current XSAVE mask (%xcr0).

Differential Revision:	https://reviews.freebsd.org/D1193
Reviewed by:	kib
MFC after:	2 weeks
Merge from CheriBSD (3422ebe71b6c06fe78b1be73623b240c219e08e3):

Rename beripic to beripic0.

MFC after:	1 week
Sponsored by:	DARPA, AFRL
Prevent overflow issues in timeout processing

Previously, any timeout value for which (timeout * hz) will overflow the
signed integer, will give weird results, since callout(9) routines will
convert negative values of ticks to '1'. For unsigned integer overflow we
will get sufficiently smaller timeout values than expected.

Switch from callout_reset, which requires conversion to int based ticks
to callout_reset_sbt to avoid this.

Also correct isci to correctly resolve ccb timeout.

This was based on the original work done by Eygene Ryabinkin
<rea@freebsd.org> back in 5 Aug 2011 which used a macro to help avoid
the overlow.

Differential Revision:	https://reviews.freebsd.org/D1157
Reviewed by:	mav, davide
MFC after:	1 month
Sponsored by:	Multiplay
Merge from CheriBSD (2e28d2a3090239b30481f35dc452ad95a5c57389)

Remove initalized, but unused devname variable

MFC after:	1 week
Sponsored by:	DARPA, AFRL
Merge from CheriBSD:

commit d0c7d235c09fc65dbdb278e7016a96f79c6a49cc
    Make the Altera JTAG UART device driver slightly more forgiving of
    the foibles of a sub-par hrdware interface by increasing the timeout
    for spotting JTAG polling from one to two seconds.

commit 19ed45a18832560dab967c179d83b71081c3a220
    Update comment.

commit 8edfe803f033cc8e33229f99894c2b7496a44d5f
    Add a comment about a device-driver race condition that could cause the BERI
    pipeline to wedge awaiting JTAG in the event that both the low-level console
    and the tty layer decide to write to the JTAG FIFO just before JTAG is
    disconnected.  Resolving this race is a bit tricky as it looks like there
    isn't a way to 'give the character back' to the tty layer when we discover
    the race.  The easy fix is to drop the character, which we don't yet do, but
    perhaps should as that is a better outcome than wedging the pipeline.

commit 2ea26cf579c9defcf31e413e7c9b0fbc159237fc
    Add a comment about an inherent race with hardware in the Altera JTAG
    UART's low-level console code.

Submitted by:	rwatson
MFC after:	1 week
Sponsored by:	DARPA, AFRL
Document the recent enhancements for configuring bus speed in iicbus(4).

Differential Revision:        https://reviews.freebsd.org/D1182
PR:		195009
Merge from CheriBSD:

commit 6d3c4c09226ad6bdd662e3e52489ef294a6ce298
    Add terasic_mtl vt(4) framebuffer driver

    terasic_mtl can be built with syscons(4) and vt(4) attachments, selected
    at compile time.

commit 33240259b47a7c990a5a88a19f133a5600432a4c
    Clear terasic_mtl text buffer on attach

commit d188c2d2412953f949624aa35cd07082830943c9
    Update terasic vt(4) driver for FreeBSD r269783

commit d1cc54eee852fa4fc9d359d5bb2171d24ec73369
    Safety belt to ensure vt(4) fb parameters are correct

commit 76e6d468ef45711d7952786095fc4791289ebb4b
    Improve terasic_mtl_vt fdt parsing

    - Use OF_getencprop to avoid need for explicit endian handling
      (submitted by ray@freebsd.org)
    - Check for expected length and correct pointer type

commit 3e2524b8995ab66e8a9295e4c87cbc7126eeddf4
    Correct device_printf usage

commit 9e53e3c8e0766414e25662c95b09cc51c92443b0
    Switch framebuffer to match host endianness

    Xorg and xf86-video-scfb work much better with a native-endian
    framebuffer.

commit 0f49259d596321ed85288ac0e1fb4ee1c966df48
    Switch DE4 to vt(4) and enable kbdmux

commit 5bc96ebc89db7d134ad478335090c8477c1677c7
    Add missing \n in device_printf calls

Submitted by:	emaste
Sponsored by:	DARPA, AFRL
Merge remote-tracking branch 'freebsd/master' into hardened/current/master