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# syslinux.bbclass
# Copyright (C) 2004-2006, Advanced Micro Devices, Inc. All Rights Reserved
# Released under the MIT license (see packages/COPYING)
# Provide syslinux specific functions for building bootable images.
# External variables
# ${INITRD} - indicates a filesystem image to use as an initrd (optional)
# ${ROOTFS} - indicates a filesystem image to include as the root filesystem (optional)
# ${AUTO_SYSLINUXMENU} - set this to 1 to enable creating an automatic menu
# ${LABELS} - a list of targets for the automatic config
# ${APPEND} - an override list of append strings for each label
# ${SYSLINUX_OPTS} - additional options to add to the syslinux file ';' delimited
do_bootimg[depends] += "syslinux:do_populate_sysroot \
syslinux-native:do_populate_sysroot"
SYSLINUXCFG = "${S}/syslinux.cfg"
SYSLINUXMENU = "${S}/menu"
ISOLINUXDIR = "/isolinux"
SYSLINUXDIR = "/"
ISO_BOOTIMG = "isolinux/isolinux.bin"
ISO_BOOTCAT = "isolinux/boot.cat"
MKISOFS_OPTIONS = "-no-emul-boot -boot-load-size 4 -boot-info-table"
APPEND_prepend = " ${SYSLINUX_ROOT} "
syslinux_populate() {
DEST=$1
BOOTDIR=$2
CFGNAME=$3
install -d ${DEST}${BOOTDIR}
# Install the config files
install -m 0644 ${SYSLINUXCFG} ${DEST}${BOOTDIR}/${CFGNAME}
if [ -f ${SYSLINUXMENU} ]; then
install -m 0644 ${SYSLINUXMENU} ${DEST}${BOOTDIR}
fi
}
syslinux_iso_populate() {
syslinux_populate ${ISODIR} ${ISOLINUXDIR} isolinux.cfg
install -m 0644 ${STAGING_LIBDIR}/syslinux/isolinux.bin ${ISODIR}${ISOLINUXDIR}
}
syslinux_hddimg_populate() {
syslinux_populate ${HDDDIR} ${SYSLINUXDIR} syslinux.cfg
install -m 0444 ${STAGING_LIBDIR}/syslinux/ldlinux.sys ${HDDDIR}${SYSLINUXDIR}/ldlinux.sys
}
syslinux_hddimg_install() {
syslinux ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg
}
python build_syslinux_menu () {
import copy
import sys
workdir = d.getVar('WORKDIR', True)
if not workdir:
bb.error("WORKDIR is not defined")
return
labels = d.getVar('LABELS', True)
if not labels:
bb.debug(1, "LABELS not defined, nothing to do")
return
if labels == []:
bb.debug(1, "No labels, nothing to do")
return
cfile = d.getVar('SYSLINUXMENU', True)
if not cfile:
raise bb.build.FuncFailed('Unable to read SYSLINUXMENU')
try:
cfgfile = file(cfile, 'w')
except OSError:
raise bb.build.funcFailed('Unable to open %s' % (cfile))
# Beep the speaker and Clear the screen
cfgfile.write('\x07\x0C')
# The title should be configurable
cfgfile.write('Linux Boot Menu\n')
cfgfile.write('The following targets are available on this image:\n')
cfgfile.write('\n')
for label in labels.split():
from copy import deepcopy
localdata = deepcopy(d)
overrides = localdata.getVar('OVERRIDES')
if not overrides:
raise bb.build.FuncFailed('OVERRIDES not defined')
overrides = localdata.expand(overrides)
localdata.setVar('OVERRIDES', label + ':' + overrides)
bb.data.update_data(localdata)
usage = localdata.getVar('USAGE', True)
cfgfile.write(' \x0F\x30\x3E%16s\x0F\x30\x37: ' % (label))
cfgfile.write('%s\n' % (usage))
del localdata
cfgfile.write('\n')
cfgfile.close()
}
python build_syslinux_cfg () {
import copy
import sys
workdir = d.getVar('WORKDIR', True)
if not workdir:
bb.error("WORKDIR not defined, unable to package")
return
labels = d.getVar('LABELS', True)
if not labels:
bb.debug(1, "LABELS not defined, nothing to do")
return
if labels == []:
bb.debug(1, "No labels, nothing to do")
return
cfile = d.getVar('SYSLINUXCFG', True)
if not cfile:
raise bb.build.FuncFailed('Unable to read SYSLINUXCFG')
try:
cfgfile = file(cfile, 'w')
except OSError:
raise bb.build.funcFailed('Unable to open %s' % (cfile))
cfgfile.write('# Automatically created by OE\n')
opts = d.getVar('SYSLINUX_OPTS', True)
if opts:
for opt in opts.split(';'):
cfgfile.write('%s\n' % opt)
cfgfile.write('ALLOWOPTIONS 1\n');
cfgfile.write('DEFAULT %s\n' % (labels.split()[0]))
timeout = d.getVar('SYSLINUX_TIMEOUT', True)
if timeout:
cfgfile.write('TIMEOUT %s\n' % timeout)
else:
cfgfile.write('TIMEOUT 50\n')
prompt = d.getVar('SYSLINUX_PROMPT', True)
if prompt:
cfgfile.write('PROMPT %s\n' % prompt)
else:
cfgfile.write('PROMPT 1\n')
menu = d.getVar('AUTO_SYSLINUXMENU', True)
# This is ugly. My bad.
if menu:
bb.build.exec_func('build_syslinux_menu', d)
mfile = d.getVar('SYSLINUXMENU', True)
cfgfile.write('DISPLAY %s\n' % (mfile.split('/')[-1]) )
for label in labels.split():
localdata = bb.data.createCopy(d)
overrides = localdata.getVar('OVERRIDES', True)
if not overrides:
raise bb.build.FuncFailed('OVERRIDES not defined')
localdata.setVar('OVERRIDES', label + ':' + overrides)
bb.data.update_data(localdata)
cfgfile.write('LABEL %s\nKERNEL /vmlinuz\n' % (label))
append = localdata.getVar('APPEND', True)
initrd = localdata.getVar('INITRD', True)
if append:
cfgfile.write('APPEND ')
if initrd:
cfgfile.write('initrd=/initrd ')
cfgfile.write('LABEL=%s '% (label))
cfgfile.write('%s\n' % (append))
cfgfile.close()
}
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