Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

kboot: Move powerpc kboot to top level

As the first step at making this more generic, move kboot to top level.

Sponsored by: Netflix
Reviewed by: luporl, tsoome
Differential Revision: https://reviews.freebsd.org/D33513

stand/uboot: reorg

Build uboot ubldr and friends like we build efi binaries
o move everything to be under stand/uboot
o md code goes in arch/$ARCH
o move everything over from the library
- Had to rename console.c, disk.c and module.c due to conflicts
o update version to 1.5 to reflect the new way of building

This results in a more consistent build system and should represent no
functional change, apart from powerpc version getting new help
file. Also, moved to exlcuding uboot on powerpc64le by using
BROKEN_OPTION instead of the incidental exclusion we had before due to
Makefile reorgs.

Sponsored by: Netflix
Feedback by: stevek, jrtc27
Differential Revision: https://reviews.freebsd.org/D33362

powerpc64le: stand fixes

Fix boot1 and loader on PowerPC64 little-endian (LE).

Due to endian issues, boot1 couldn't find the UFS boot partition
and loader wasn't able to load the kernel. Most of the issues
happened because boot1 and loader were BE binaries trying to access
LE UFS partitions and because loader expects the kernel ELF image
to use the same endian as itself.

To fix these issues, boot1 and loader are now built as LE binaries
on PPC64LE. To support this, the functions that call OpenFirmware
were enhanced to correctly perform endian conversion on its input
and output arguments and to change the CPU into BE mode before
making the calls, as OpenFirmware always runs in BE. Besides that,
some other small fixes were needed.

Submitted by: bdragon (initial version)
Reviewed by: alfredo, jhibbits
Sponsored by: Instituto de Pesquisas Eldorado (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D32160

stand: TARGET_ARCH is spelled MACHINE_ARCH in Makefiles

Reported by: imp

stand/powerpc: Only build loader.kboot for powerpc64

kboot is only made for powerpc64 systems, not 32-bit systems.

This unbreaks the build for powerpcspe.

Reported by: ngie

stand: Fix build after r330249

One does not simply convert to SUBDIR.yes in stand without making everything
else in the affected files SUBDIR.yes -- there are better ways to do this.

stand: Makefile SUBDIR cleanup

Use SUBDIR.${MK_*} where appropriate. r330248 eliminated most of the
offenders, sweep the rest under the rug.

Differential Revision: https://reviews.freebsd.org/D14545

Add NO_OBJ to those directories that don't make anything.

For directories that don't many anything, add NO_OBJ=t just before we
include bsd.init.mk. This prevents them from creating an OBJ
directory. In addition, prevent defs.mk from creating the machine
related links in these cases. They aren't needed and break, at least
on stable, the read-only src tree build.

Disconnet ps3 from the build. There's too many warnings to fix. Also,
it's going to be removed soon anyway once the final lingering issues
with kboot are resolved. Go ahead and disconnect it from the build a
little early.

Sponsored by: Netflix
OK'd by: nathanw@

Move sys/boot to stand. Fix all references to new location

Sponsored by: Netflix