Implement cross build support for embedded devices into

release.sh:

 - Modify release/release.sh to recognize an 'EMBEDDEDBUILD'
   variable.  When set, release/release.sh will build the chroot
   userland as is done for big-iron builds.

 - Instead of running the 'buildworld', 'buildkernel', and
   'release' targets in the chroot, a separate script is run.
   The script tools/release/${XDEV}/release.sh sets up the rest
   of the chroot workspace, such as installing ports that will
   be needed, and building the 'xdev' target.

 - crochet (by kientzle@) is checked out from the upstream
   repository (and if needed, u-boot, in the case of Raspberry
   Pi).

 - tools/release/${XDEV}/release.sh then runs crochet with
   a configuration file specific to the ${KERNCONF} being built.

Note that this is effectively a first-pass attempt to integrate
this into the release process.

Tested against:	head@r259961
Sponsored by:	The FreeBSD Foundation

1 files changed, 37 insertions, 0 deletions

diff --git a/release/arm/RPI-B.conf b/release/arm/RPI-B.conf
new file mode 100644
index 000000000000..776e86d11eea
--- /dev/null
+++ b/release/arm/RPI-B.conf
@@ -0,0 +1,37 @@
+#
+# $FreeBSD$
+#
+
+# This is only supported on amd64 right now.  It may work on
+# i386, but I do not have the hardware to test, so until I get
+# a VM set up to make sure, be cautious and assume it will not.
+if [ "$(uname -p)" != "amd64" ] || [ "$(uname -m)" != "amd64" ]; then
+    echo "This is only supported on amd64 right now."
+    exit 0
+fi
+
+# Build chroot configuration
+TARGET="amd64"
+TARGET_ARCH="amd64"
+SVNROOT="svn://svn.FreeBSD.org"
+SRCBRANCH="base/head@rHEAD"
+DOCBRANCH="doc/head@rHEAD"
+PORTBRANCH="ports/head@rHEAD"
+NODOC=yes
+
+# Build target configuration
+# Since this file is sourced by a script that runs another
+# script, these must be exported.
+set -a
+CHROOTDIR="/scratch"
+EMBEDDEDBUILD=1
+EMBEDDEDPORTS="lang/python textproc/gsed"
+XDEV="arm"
+XDEV_ARCH="arm"
+KERNEL="RPI-B"
+CROCHETSRC="https://github.com/kientzle/crochet-freebsd"
+CROCHETBRANCH="trunk"
+UBOOTSRC="https://github.com/gonzoua/u-boot-pi"
+UBOOTBRANCH="trunk"
+UBOOTDIR="/tmp/crochet/u-boot-rpi"
+set +a