Now uses the package database instead of filesystem so the check works
even if /bin and friends are symlinks to /usr. Also disable the
whitelist and check that the expected symlinks are correct if the
symlink-usr USE flag is enabled.
When calling update_chroot with --usepkg --nogetbinpkg the default
emerge command line will force binary packages for the toolchain but if
the packages are not available locally building via crossdev is
required. Since the crossdev bootstrap process rebuilds the toolchain a
couple times with different use flags if binary packages are forced the
second stages gets skipped resulting in a broken gcc and glibc install.
This makes it possible to toggle parallel_emerge just as other scripts
do. In other scripts update the help string to be more specific, the
--jobs option can be used to control parallelism.
Although it didn't seem to be causing any bugs the global variables in
toolchain_util conflicted with some names used elsewhere. Clean that up
by adding an S to the array names that didn't already have one.
When calling update_chroot with --nousepkg it is silly to always force a
rebuild of the cross toolchain. Change the test to work regardless of
whether binary packages are enabled by checking if anything needs to be
built from source.
Now this code can be shared with setup_board. Only required if
setup_board is called with --nousepkg which is rare to never but feels
like the correct thing to do. Alternatively setup_board could always
use binary packages (as it basically does now).
Right now there is some funky logic to either use a previous build as a
seed or the current SDK tarball if it happens to have been downloaded.
This is a bit confusing and doesn't work reliably since it is reasonable
for there to be neither a previous build or the current SDK available if
the SDK chroot was created some time ago. Fix this by using the new SDK
library and always use the latest SDK, downloading it if needed.
A number of places refer to these paths and that number is going to
grow. Since the standard pattern is to use environment variables for
commonly used paths it is time to add ones for these:
REPO_CACHE_DIR
REPO_MANIFESTS_DIR
This scheme only works robustly with kexec. Until the happy day that
kexec is supported on Xen (or when Xen is dead, long live Xen!) we
shouldn't bother trying. This allows us to use kernel modules again.
Previously the code in base_image_util.sh properly handled the disk
layout command line flag but the spaghetti code later on calls a
function from disk_layout_util.sh which only returned 'base' resulting
in a bit of a mess if something other than 'base' is used. Sync up the
two code paths to avoid that...
Use 2*CPUs for the target load average but add load average throttling
to emerge in addition to make. Also work around how catalyst sets
FEATURES so we can disable extra locking for hopefully faster builds.
This replaces the cross-toolchain compile step in bootstrap_sdk and adds the
ability to build native toolchains using the cross toolchain. This is just
the first step towards actually providing the native toolchain in a container.
We don't need to reserve space on disk just to reserve partition
numbers. And now that partitions are aligned these blanks spots grew
from 512 bytes to 1MB which is not much but still silly.
When using anything other than classic spinning disks with 512 sectors
it is generally best to maintain some alignment with the underlying
physical sector or erase block size. The default alignment most
partitioning tools use these days is 1MB (2048 sectors). Also sometimes
qemu-img requires disk sizes to be aligned to 64KB.
The existing code arbitrarily multiplies START_SECTOR by 512 converting
from blocks/sectors to bytes, but blocks was the correct unit to begin
with. Also the secondary GPT area is not considered but that was OK
because the bogus unit conversion oversized our disks by almost 16MB.
Instead of relying on bugs properly reserve 34 sectors at each end of
the disk. (Well, we could get away with only 33 at the end since it
doesn't have a MBR but meh.)
