set up for the amd64/amd64 TARGET/TARGET_ARCH combination.
Some of the build tools used here (u-boot in particular) require
use of gcc(1). The lang/gcc* from ports/ will install as 'gccNN'
instead of 'gcc', so they cannot be used without extra hacks.
Add an EMBEDDED_WORLD_FLAGS variable to be used to properly set
up the build chroot. For the RPI-B case, EMBEDDED_WORLD_FLAGS
is set to 'WITH_GCC=1', which is used to set up the build chroot.
While here, in followup to r260895, do not rely on the necessary
configuration files and/or scripts to exist in the build target
src/ tree.
To work around cases where files do not exist, copy (from the
local release/ checkout) the tools/${XDEV}/crochet-${KERNEL}.conf
to ${CHROOTDIR}/tmp/external/crochet-${KERNEL}.conf to make them
accessible to the external utilities that need them (i.e., crochet).
Sponsored by: The FreeBSD Foundation
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
