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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
# ${SYSLINUX_SPLASH} - A background for the vga boot menu if using the boot menu
# ${SYSLINUX_DEFAULT_CONSOLE} - set to "console=ttyX" to change kernel boot default console
# ${SYSLINUX_SERIAL} - Set an alternate serial port or turn off serial with empty string
# ${SYSLINUX_SERIAL_TTY} - Set alternate console=tty... kernel boot argument
do_bootimg[depends] += "syslinux:do_populate_sysroot \
syslinux-native:do_populate_sysroot"
SYSLINUXCFG = "${S}/syslinux.cfg"
ISOLINUXDIR = "/isolinux"
SYSLINUXDIR = "/"
# The kernel has an internal default console, which you can override with
# a console=...some_tty...
SYSLINUX_DEFAULT_CONSOLE ?= ""
SYSLINUX_SERIAL ?= "0 115200"
SYSLINUX_SERIAL_TTY ?= "console=ttyS0,115200"
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}/${CFGNAME}
if [ "${AUTO_SYSLINUXMENU}" = 1 ] ; then
install -m 0644 ${STAGING_DATADIR}/syslinux/vesamenu.c32 ${DEST}${BOOTDIR}/vesamenu.c32
install -m 0444 ${STAGING_DATADIR}/syslinux/libcom32.c32 ${DEST}${BOOTDIR}/libcom32.c32
install -m 0444 ${STAGING_DATADIR}/syslinux/libutil.c32 ${DEST}${BOOTDIR}/libutil.c32
if [ "${SYSLINUX_SPLASH}" != "" ] ; then
install -m 0644 ${SYSLINUX_SPLASH} ${DEST}${BOOTDIR}/splash.lss
fi
fi
}
syslinux_iso_populate() {
iso_dir=$1
syslinux_populate $iso_dir ${ISOLINUXDIR} isolinux.cfg
install -m 0644 ${STAGING_DATADIR}/syslinux/isolinux.bin $iso_dir${ISOLINUXDIR}
install -m 0644 ${STAGING_DATADIR}/syslinux/ldlinux.c32 $iso_dir${ISOLINUXDIR}
}
syslinux_hddimg_populate() {
hdd_dir=$1
syslinux_populate $hdd_dir ${SYSLINUXDIR} syslinux.cfg
install -m 0444 ${STAGING_DATADIR}/syslinux/ldlinux.sys $hdd_dir${SYSLINUXDIR}/ldlinux.sys
}
syslinux_hddimg_install() {
syslinux ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg
}
syslinux_hdddirect_install() {
DEST=$1
syslinux $DEST
}
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');
syslinux_default_console = d.getVar('SYSLINUX_DEFAULT_CONSOLE', True)
syslinux_serial_tty = d.getVar('SYSLINUX_SERIAL_TTY', True)
syslinux_serial = d.getVar('SYSLINUX_SERIAL', True)
if syslinux_serial:
cfgfile.write('SERIAL %s\n' % syslinux_serial)
menu = d.getVar('AUTO_SYSLINUXMENU', True)
if menu and syslinux_serial:
cfgfile.write('DEFAULT Graphics console %s\n' % (labels.split()[0]))
else:
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')
if menu:
cfgfile.write('ui vesamenu.c32\n')
cfgfile.write('menu title Select kernel options and boot kernel\n')
cfgfile.write('menu tabmsg Press [Tab] to edit, [Return] to select\n')
splash = d.getVar('SYSLINUX_SPLASH', True)
if splash:
cfgfile.write('menu background splash.lss\n')
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)
btypes = [ [ "", syslinux_default_console ] ]
if menu and syslinux_serial:
btypes = [ [ "Graphics console ", syslinux_default_console ],
[ "Serial console ", syslinux_serial_tty ] ]
for btype in btypes:
cfgfile.write('LABEL %s%s\nKERNEL /vmlinuz\n' % (btype[0], 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 %s\n' % (append, btype[1]))
else:
cfgfile.write('APPEND %s\n' % btype[1])
cfgfile.close()
}
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