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It can be useful to have multiple partitions with '--source bootimg-partition'
but different content.
E.g. for TI AM335x, one boot partition can contain an first stage
bootloader ("MLO"), while the real bootloader and kernel plus devicetree
are in another one.
Patch allows to specify multiple IMAGE_BOOT_FILES with optional "_label-XXX"
or "_uuid-XXX" overrides.
E.g. with this patch, a .wks file with
| part --source bootimg-partition ... --label=mlo --active
| part --source bootimg-partition ... --label=boot0
| part --source bootimg-partition ... --label=boot1
and a recipe with
| IMAGE_BOOT_FILES_label-mlo = "\
| MLO-${MACHINE}.img;MLO \
| "
|
| IMAGE_BOOT_FILES_label-boot0 = "\
| u-boot-${MACHINE}.img;u-boot.img \
| zImage \
| "
|
| IMAGE_BOOT_FILES_label-boot1 = "${IMAGE_BOOT_FILES_label-boot0}"
|
| WICVARS += " \
| IMAGE_BOOT_FILES_label-mlo \
| IMAGE_BOOT_FILES_label-boot0 \
| IMAGE_BOOT_FILES_label-boot1 \
| "
is possible. It will create one partition with the MLO and two redundant
ones with the uboot + kernel.
(From OE-Core rev: 8c1dec627e9735260516fe8f0b2bfdb0ee70172b)
Signed-off-by: Enrico Scholz <enrico.scholz@ensc.de>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
133 lines
4.9 KiB
Python
133 lines
4.9 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# DESCRIPTION
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# This implements the 'bootimg-partition' source plugin class for
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# 'wic'. The plugin creates an image of boot partition, copying over
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# files listed in IMAGE_BOOT_FILES bitbake variable.
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#
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# AUTHORS
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# Maciej Borzecki <maciej.borzecki (at] open-rnd.pl>
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#
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import logging
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import os
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import re
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from glob import glob
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from wic import WicError
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from wic.pluginbase import SourcePlugin
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from wic.misc import exec_cmd, get_bitbake_var
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logger = logging.getLogger('wic')
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class BootimgPartitionPlugin(SourcePlugin):
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"""
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Create an image of boot partition, copying over files
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listed in IMAGE_BOOT_FILES bitbake variable.
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"""
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name = 'bootimg-partition'
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@classmethod
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def do_prepare_partition(cls, part, source_params, cr, cr_workdir,
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oe_builddir, bootimg_dir, kernel_dir,
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rootfs_dir, native_sysroot):
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"""
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Called to do the actual content population for a partition i.e. it
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'prepares' the partition to be incorporated into the image.
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In this case, does the following:
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- sets up a vfat partition
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- copies all files listed in IMAGE_BOOT_FILES variable
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"""
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hdddir = "%s/boot.%d" % (cr_workdir, part.lineno)
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install_cmd = "install -d %s" % hdddir
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exec_cmd(install_cmd)
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if not kernel_dir:
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kernel_dir = get_bitbake_var("DEPLOY_DIR_IMAGE")
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if not kernel_dir:
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raise WicError("Couldn't find DEPLOY_DIR_IMAGE, exiting")
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logger.debug('Kernel dir: %s', bootimg_dir)
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boot_files = None
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for (fmt, id) in (("_uuid-%s", part.uuid), ("_label-%s", part.label), (None, None)):
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if fmt:
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var = fmt % id
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else:
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var = ""
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boot_files = get_bitbake_var("IMAGE_BOOT_FILES" + var)
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if boot_files is not None:
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break
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if boot_files is None:
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raise WicError('No boot files defined, IMAGE_BOOT_FILES unset for entry #%d' % part.lineno)
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logger.debug('Boot files: %s', boot_files)
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# list of tuples (src_name, dst_name)
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deploy_files = []
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for src_entry in re.findall(r'[\w;\-\./\*]+', boot_files):
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if ';' in src_entry:
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dst_entry = tuple(src_entry.split(';'))
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if not dst_entry[0] or not dst_entry[1]:
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raise WicError('Malformed boot file entry: %s' % src_entry)
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else:
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dst_entry = (src_entry, src_entry)
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logger.debug('Destination entry: %r', dst_entry)
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deploy_files.append(dst_entry)
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for deploy_entry in deploy_files:
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src, dst = deploy_entry
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install_task = []
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if '*' in src:
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# by default install files under their basename
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entry_name_fn = os.path.basename
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if dst != src:
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# unless a target name was given, then treat name
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# as a directory and append a basename
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entry_name_fn = lambda name: \
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os.path.join(dst,
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os.path.basename(name))
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srcs = glob(os.path.join(kernel_dir, src))
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logger.debug('Globbed sources: %s', ', '.join(srcs))
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for entry in srcs:
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entry_dst_name = entry_name_fn(entry)
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install_task.append((entry,
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os.path.join(hdddir,
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entry_dst_name)))
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else:
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install_task = [(os.path.join(kernel_dir, src),
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os.path.join(hdddir, dst))]
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for task in install_task:
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src_path, dst_path = task
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logger.debug('Install %s as %s',
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os.path.basename(src_path), dst_path)
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install_cmd = "install -m 0644 -D %s %s" \
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% (src_path, dst_path)
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exec_cmd(install_cmd)
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logger.debug('Prepare boot partition using rootfs in %s', hdddir)
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part.prepare_rootfs(cr_workdir, oe_builddir, hdddir,
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native_sysroot)
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