- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r284333:
Reduce the arm/armv6 image size from 1G to 480M.

Since the images are effectively mostly zeros at 1G,
reduce the size to allow installation on smaller SD
cards, such as 512Mb.

While here, stop writing the /boot.txt file on the
WANDBOARD, which isn't used anyway.

Sponsored by: The FreeBSD Foundation

MFC r283920, r283991, r283992, r284102:

r283920:
Add a configuration file to support the Cubox/Hummingboard SoC.

r283991:
Add initial support for building images for the Duovero Gumstix
board.

r283992:
Fix a whitespace nit.

r284102:
Set the correct UBLDR_LOADADDR for the Wandboard and
Cubox/Hummingboard images.

Sponsored by: The FreeBSD Foundation

MFC r283673, r283674:

r283673:
Sort configuration options for consistency with other boards.

r283674:
Export 'BOARDNAME' when differs from the KERNCONF.

Sponsored by: The FreeBSD Foundation

MFC r282500, r282693:
r282500:
Add initial support for building RPI2 images.

In release.sh, allow overriding buildenv_setup() before
the handoff to arm/release.sh.

Copy arm/RPI-B.conf -> arm/RPI2.conf, set UBOOT_PORT and
the correct KERNEL, and add the buildenv_setup() override
to install the sysutils/u-boot-rpi2 port/package.

Copy tools/arm/crochet-RPI-B.conf -> tools/arm/crochet-RPI2.conf,
and set the correct entries for the RaspberryPi2 board.

r282693:
Merge ^/projects/release-arm-redux into ^/head.

Of note:

- This commit adds native FreeBSD/arm release build support without
requiring out-of-tree utilities.

- Part of this merge removes the WANDBOARD-{SOLO,DUAL,QUAD} kernel
configuration files, for which the IMX6 kernel configuration file
should be used instead.

- The resulting images have a 'freebsd' user (password 'freebsd'),
to allow ssh(1) access when console access is not available (VGA
or serial). The default 'root' user password is set to 'root'.

- The /etc/ttys file for arm images now enable both ttyv0 and ttyu0
by default.

Note: The RPI2 kernel configuration does not yet exist in stable/10,
however the merge conflicts needed to be properly resolved.
Additionally, SRCBRANCH has been set to base/stable/10 in the updated
arm configuration files as part of this commit.

Sponsored by: The FreeBSD Foundation

Merge ^/projects/release-arm-redux into ^/head.

Of note:

- This commit adds native FreeBSD/arm release build support without
requiring out-of-tree utilities.

- Part of this merge removes the WANDBOARD-{SOLO,DUAL,QUAD} kernel
configuration files, for which the IMX6 kernel configuration file
should be used instead.

- The resulting images have a 'freebsd' user (password 'freebsd'),
to allow ssh(1) access when console access is not available (VGA
or serial). The default 'root' user password is set to 'root'.

- The /etc/ttys file for arm images now enable both ttyv0 and ttyu0
by default.

Help from: many (boot testing, feedback, etc.)
Sponsored by: The FreeBSD Foundation

Use the IMX6 kernel configuration for the WANDBOARD build,
since it supports all of these board variants.

While here, remove the WANDBOARD-{QUAD,SOLO,DUAL} kernel
configuration files.

Discussed with: ian
Sponsored by: The FreeBSD Foundation

Strip the KERNEL from the mount paths, working around the following
error:

root@releng2:/ # mount_msdosfs /dev/md5s1 /usr/obj/usr/src/release/WANDBOARD-QUAD/fat
mount_msdosfs: /dev/md5s1: File name too long

Sponsored by: The FreeBSD Foundation

Fix path to the u-boot.imx file, which is relative to the root of
the chroot environment.

Sponsored by: The FreeBSD Foundation

Touch '/firstboot' so the growfs rc(8) script runs.

Sponsored by: The FreeBSD Foundation

Fix the starting block of the partition.

Sponsored by: The FreeBSD Foundation

Fix FAT partition size.

Sponsored by: The FreeBSD Foundation

Initial support for building WANDBOARD-QUAD images.

Several parts of this were obtained from Crochet.

Sponsored by: The FreeBSD Foundation

Set NODOC=1 to avoid building the reldoc target.

Sponsored by: The FreeBSD Foundation

Update the arm/*.conf configuration files to only set
EMBEDDEDBUILD, EMBEDDED_TARGET, EMBEDDED_TARGET_ARCH,
EMBEDDEDPORTS, and KERNEL.

In release.sh, set TARGET and TARGET_ARCH to the
EMBEDDED_* variants from the configuration file.

Sponsored by: The FreeBSD Foundation

MFH: r281855-r282312

Sponsored by: The FreeBSD Foundation

MFH: r278968-r280640

Sponsored by: The FreeBSD Foundation

Copy head@278199 to projects/release-arm-redux.

This branch will be used to rework building arm
release images using utilities from the ports tree,
decoupling Crochet from the process.

Sponsored by: The FreeBSD Foundation

Set a static revision of the Crochet checkout to avoid
surprise build failures.

MFC after: 3 days
X-10.1-MFC: yes
X-MFC-With: r271676, r271677
Sponsored by: The FreeBSD Foundation

Merge the following from ^/projects/release-noxdev:
r269549, r269551, r269552, r269553, r269554, r269555, r269558, r269559,
r269560, r269561, r269628, r269629, r269630, r269635, r269637:

r269549:
Create a new project branch, release-noxdev, for
a sandbox workspace outside of head/ to update the
release bits for arm builds since the deprecation of
the XDEV and XDEV_ARCH make(1) variables.

r269551:
Define load_chroot_env() and load_target_env()
prototypes.

r269552:
Call load_chroot_env() and load_target_env() where
they can be mutually conflicting with regard to
TARGET, TARGET_ARCH, XDEV, and XDEV_ARCH.

r269553:
Add shebang line to arm/*.conf files since these
should be considered to be executable (albeit not
on their own) shell scripts.

r269554:
Redefine load_chroot_env() and load_target_env() in
the arm/*.conf files, and reindent.

r269555:
Simplify where load_chroot_env() and load_target_env() are
called.

r269558:
Provide example in release.conf.sample for overriding the
load_chroot_env() and load_target_env() prototypes.

r269559:
Remove a gratuitous newline.

r269560:
Unset potentially conflicting variables in load_chroot_env()
and load_target_env().

r269561:
Make global variables global, and accessible outside of
the functions within which they were once defined.

r269628:
Remove XDEV/XDEV_ARCH evaluation if EMBEDDEDBUILD is set.

r269629:
In arm/release.sh, switch TARGET/TARGET_ARCH back to the
original XDEV/XDEV_ARCH make(1) variables.

In theory, this should have been a no-op, but the TARGET and
TARGET_ARCH are now unset in load_target_env() to avoid
collision with the chroot userland.

r269630:
Export variables in the arm/*.conf files because they
need to be passed through release.sh to arm/release.sh.

Set MK_TESTS=no for the xdev target.

r269635:
As part of the XDEV/XDEV_ARCH deprecation, the
'xdev-links' target was intentionally no longer
invoked automatically.

Invoke the xdev-links target after xdev, which
creates, for example, /usr/bin/armv6-freebsd-cc
symlink to /usr/armv6-freebsd/usr/bin/cc.

r269637:
Set TARGET and TARGET_ARCH to the XDEV and XDEV_ARCH
counterparts for the xdev and xdev-links make(1)
targets.

Sponsored by: The FreeBSD Foundation

Move xdev knobs from release/arm/release.sh and into an
XDEV_FLAGS variable in ${KERNCONF}.conf file.

MFC after: 3 days
X-MFC-Note: fix stable/10 XDEV_FLAGS local for branch
Sponsored by: The FreeBSD Foundation

Merge r262906 from ^/projects/release-embedded:
Remove only-works-on-amd64 restriction.

Sponsored by: The FreeBSD Foundation

Merge ^/projects/release-embedded into ^/head.

After several months of testing and fixing (and breaking)
various parts of release/release.sh changes, it is now
possible to build FreeBSD/arm images as part of the release
process.

When EMBEDDEDBUILD is set in the release.conf file, release.sh
will create the build environment, then run a separate script
in release/${XDEV}/release.sh [1]. Currently, only arm is
supported.

The release/${XDEV}/release.sh configures the build environment
specific for the target image, such as installing gcc(1),
installing additional third-party software from the ports tree,
and fetching external sources.

Once the build environment is set up, release/${XDEV}/release.sh
runs Crochet, written by Tim Kientzle, which builds the userland
and kernel, and creates an image that can be written to an SD
card with dd(1). Many thanks to Tim for his work on Crochet.

Sample configurations for FreeBSD/arm boards are in the
release/arm/ directory, and Crochet configuration files for each
board are located in release/tools/arm/. Supported boards at this
time are: BEAGLEBONE, PANDABOARD, RPI-B, and WANDBOARD-QUAD.

Adding support for additional boards will continue in the
projects/release-embedded/ branch, and incrementally merged back
to head/.

Many thanks to the FreeBSD Foundation for the support and
sponsorship of this project.

[1] XDEV is used in order to keep the various configurations
organized by architecture, but since TARGET and TARGET_ARCH
are used to build the chroot, the values of those variables
cannot be used.

MFC after: 1 month
Sponsored by: The FreeBSD Foundation

Merge the following:
^/user/gjb/hacking/release-embedded:
259994,260000,260895-260896,261139,261152,
261174,261176,261210,261221,261237,261239,
261448,261489
^/user/gjb/release-embedded:
262305,262307

svn:mergeinfo is intentionally not included in the commit, so it does
not propagate to head/.

Sponsored by: The FreeBSD Foundation

Add configurations for WANDBOARD-QUAD images.

Tested against: head@r261642 (build only)
Sponsored by: The FreeBSD Foundation