211 lines
11 KiB
Plaintext
211 lines
11 KiB
Plaintext
# Copyright (C) 2017, STMicroelectronics - All Rights Reserved
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# Released under the MIT license (see COPYING.MIT for the terms)
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#
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# --------------------------------------------------------------------
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# Extract from openembedded-core 'uboot-extlinux-config.bbclass' class
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# --------------------------------------------------------------------
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# External variables:
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#
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# UBOOT_EXTLINUX_CONSOLE - Set to "console=ttyX" to change kernel boot
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# default console.
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# UBOOT_EXTLINUX_LABELS - A list of targets for the automatic config.
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# UBOOT_EXTLINUX_KERNEL_ARGS - Add additional kernel arguments.
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# UBOOT_EXTLINUX_KERNEL_IMAGE - Kernel image name.
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# UBOOT_EXTLINUX_FDTDIR - Device tree directory.
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# UBOOT_EXTLINUX_FDT - Device tree file.
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# UBOOT_EXTLINUX_INITRD - Indicates a list of filesystem images to
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# concatenate and use as an initrd (optional).
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# UBOOT_EXTLINUX_MENU_DESCRIPTION - Name to use as description.
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# UBOOT_EXTLINUX_ROOT - Root kernel cmdline.
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# UBOOT_EXTLINUX_TIMEOUT - Timeout before DEFAULT selection is made.
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# Measured in 1/10 of a second.
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# UBOOT_EXTLINUX_DEFAULT_LABEL - Target to be selected by default after
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# the timeout period
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#
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# If there's only one label system will boot automatically and menu won't be
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# created. If you want to use more than one labels, e.g linux and alternate,
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# use overrides to set menu description, console and others variables.
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#
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# --------------------------------------------------------------------
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# STM32MP specific implementation
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# --------------------------------------------------------------------
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# Append new mechanism to allow multi 'extlinux.conf' file generation.
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# - multiple targets case:
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# each 'extlinux.conf' file generated is created under specific path:
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# '${B}/<UBOOT_EXTLINUX_BOOTPREFIXES>extlinux/extlinux.conf'
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# - simple target case:
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# the 'extlinux.conf' file generated is created under default path:
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# '${B}/extlinux/extlinux.conf'
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#
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# New external variables added:
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# UBOOT_EXTLINUX_TARGETS - A list of targets for multi config file
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# generation
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# UBOOT_EXTLINUX_BOOTPREFIXES - Bootprefix used in uboot script to select
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# extlinux.conf file to use
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#
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# --------------------------------------------------------------------
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# Output example:
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# --------------------------------------------------------------------
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# Following 'extlinux.conf' files are generated under ${UBOOT_EXTLINUX_INSTALL_DIR}:
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# ${UBOOT_EXTLINUX_BOOTPREFIXES_${UBOOT_EXTLINUX_TARGETS}[0]}extlinux/extlinux.conf
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# ${UBOOT_EXTLINUX_BOOTPREFIXES_${UBOOT_EXTLINUX_TARGETS}[1]}extlinux/extlinux.conf
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#
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# File content (${UBOOT_EXTLINUX_BOOTPREFIXES_${UBOOT_EXTLINUX_TARGETS}[0]}extlinux/exlinux.conf):
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# menu title Select the boot mode
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# TIMEOUT ${UBOOT_EXTLINUX_TIMEOUT}
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# DEFAULT ${UBOOT_EXTLINUX_DEFAULT_LABEL_${UBOOT_EXTLINUX_TARGETS}[0]}
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# LABEL ${UBOOT_EXTLINUX_LABELS_${UBOOT_EXTLINUX_TARGETS}[0]}[0]
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# KERNEL ${UBOOT_EXTLINUX_KERNEL} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_KERNEL_${IMAGE_UBOOT_EXTLINUX_LABELS}[0]} >
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# FDT ${UBOOT_EXTLINUX_FDT} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_FDT_${IMAGE_UBOOT_EXTLINUX_LABELS}[0]} >
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# APPEND ${UBOOT_EXTLINUX_ROOT} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_ROOT_${IMAGE_UBOOT_EXTLINUX_LABELS}[0]} >
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# LABEL ${UBOOT_EXTLINUX_LABELS_${UBOOT_EXTLINUX_TARGETS}[0]}[1]
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# KERNEL ${UBOOT_EXTLINUX_KERNEL} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_KERNEL_${IMAGE_UBOOT_EXTLINUX_LABELS}[1]} >
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# FDT ${UBOOT_EXTLINUX_FDT} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_FDT_${IMAGE_UBOOT_EXTLINUX_LABELS}[1]} >
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# APPEND ${UBOOT_EXTLINUX_ROOT} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_ROOT_${IMAGE_UBOOT_EXTLINUX_LABELS}[1]} >
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#
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# File content (${UBOOT_EXTLINUX_BOOTPREFIXES_${UBOOT_EXTLINUX_TARGETS}[0]}extlinux/exlinux.conf):
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# menu title Select the boot mode
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# TIMEOUT ${UBOOT_EXTLINUX_TIMEOUT}
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# DEFAULT ${UBOOT_EXTLINUX_DEFAULT_LABEL_${UBOOT_EXTLINUX_TARGETS}[1]}
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# LABEL ${UBOOT_EXTLINUX_LABELS_${UBOOT_EXTLINUX_TARGETS}[1]}[0]
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# KERNEL ${UBOOT_EXTLINUX_KERNEL} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_KERNEL_${IMAGE_UBOOT_EXTLINUX_LABELS}[0]} >
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# FDT ${UBOOT_EXTLINUX_FDT} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_FDT_${IMAGE_UBOOT_EXTLINUX_LABELS}[0]} >
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# APPEND ${UBOOT_EXTLINUX_ROOT} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_ROOT_${IMAGE_UBOOT_EXTLINUX_LABELS}[0]} >
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# LABEL ${UBOOT_EXTLINUX_LABELS_${UBOOT_EXTLINUX_TARGETS}[1]}[1]
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# KERNEL ${UBOOT_EXTLINUX_KERNEL} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_KERNEL_${IMAGE_UBOOT_EXTLINUX_LABELS}[1]} >
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# FDT ${UBOOT_EXTLINUX_FDT} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_FDT_${IMAGE_UBOOT_EXTLINUX_LABELS}[1]} >
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# APPEND ${UBOOT_EXTLINUX_ROOT} < OR OVERRIDE WITH : ${UBOOT_EXTLINUX_ROOT_${IMAGE_UBOOT_EXTLINUX_LABELS}[1]} >
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# --------------------------------------------------------------------
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UBOOT_EXTLINUX_TARGETS ?= ""
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UBOOT_EXTLINUX_CONSOLE ??= "console=${console}"
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UBOOT_EXTLINUX_LABELS ??= "linux"
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UBOOT_EXTLINUX_FDT ??= ""
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UBOOT_EXTLINUX_FDTDIR ??= "../"
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UBOOT_EXTLINUX_KERNEL_IMAGE ?= "/${KERNEL_IMAGETYPE}"
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UBOOT_EXTLINUX_KERNEL_ARGS ?= "rootwait rw"
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UBOOT_EXTLINUX_TIMEOUT ?= "20"
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python do_create_multiextlinux_config() {
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targets = d.getVar('UBOOT_EXTLINUX_TARGETS')
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if not targets:
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bb.fatal("UBOOT_EXTLINUX_TARGETS not defined, nothing to do")
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if not targets.strip():
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bb.fatal("No targets, nothing to do")
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for target in targets.split():
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localdata = bb.data.createCopy(d)
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overrides = localdata.getVar('OVERRIDES')
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if not overrides:
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bb.fatal('OVERRIDES not defined')
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localdata.setVar('OVERRIDES', target + ':' + overrides)
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# Initialize labels from localdata to allow target override
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labels = localdata.getVar('UBOOT_EXTLINUX_LABELS')
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if not labels:
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bb.fatal("UBOOT_EXTLINUX_LABELS not defined, nothing to do")
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if not labels.strip():
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bb.fatal("No labels, nothing to do")
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# Initialize subdir for extlinux.conf file location
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if len(targets.split()) > 1:
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bootprefix = localdata.getVar('UBOOT_EXTLINUX_BOOTPREFIXES') or ""
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subdir = bootprefix + 'extlinux'
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else:
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subdir = 'extlinux'
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# Initialize config file
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cfile = os.path.join(d.getVar('B'), subdir , 'extlinux.conf')
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# Create extlinux folder
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bb.utils.mkdirhier(os.path.dirname(cfile))
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# ************************************************************
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# Copy/Paste extract of 'do_create_extlinux_config()' function
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# from openembedded-core 'uboot-extlinux-config.bbclass' class
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# ************************************************************
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try:
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with open(cfile, 'w') as cfgfile:
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cfgfile.write('# Generic Distro Configuration file generated by OpenEmbedded\n')
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if len(labels.split()) > 1:
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cfgfile.write('menu title Select the boot mode\n')
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splashscreen_name = localdata.getVar('UBOOT_SPLASH_IMAGE')
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if not splashscreen_name:
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bb.warn('UBOOT_SPLASH_IMAGE not defined')
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else:
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cfgfile.write('MENU BACKGROUND /%s.bmp\n' % (splashscreen_name))
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timeout = localdata.getVar('UBOOT_EXTLINUX_TIMEOUT')
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if timeout:
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cfgfile.write('TIMEOUT %s\n' % (timeout))
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if len(labels.split()) > 1:
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default = localdata.getVar('UBOOT_EXTLINUX_DEFAULT_LABEL')
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if default:
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cfgfile.write('DEFAULT %s\n' % (default))
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for label in labels.split():
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# **********************************************
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# Add localdata reset to fix var expansion issue
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# **********************************************
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localdata = bb.data.createCopy(d)
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overrides = localdata.getVar('OVERRIDES')
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if not overrides:
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bb.fatal('OVERRIDES not defined')
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localdata.setVar('OVERRIDES', label + ':' + overrides)
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extlinux_console = localdata.getVar('UBOOT_EXTLINUX_CONSOLE')
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menu_description = localdata.getVar('UBOOT_EXTLINUX_MENU_DESCRIPTION')
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if not menu_description:
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menu_description = label
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root = localdata.getVar('UBOOT_EXTLINUX_ROOT')
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if not root:
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bb.fatal('UBOOT_EXTLINUX_ROOT not defined')
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kernel_image = localdata.getVar('UBOOT_EXTLINUX_KERNEL_IMAGE')
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fdtdir = localdata.getVar('UBOOT_EXTLINUX_FDTDIR')
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fdt = localdata.getVar('UBOOT_EXTLINUX_FDT')
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if fdt:
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cfgfile.write('LABEL %s\n\tKERNEL %s\n\tFDT %s\n' %
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(menu_description, kernel_image, fdt))
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elif fdtdir:
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cfgfile.write('LABEL %s\n\tKERNEL %s\n\tFDTDIR %s\n' %
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(menu_description, kernel_image, fdtdir))
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else:
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cfgfile.write('LABEL %s\n\tKERNEL %s\n' % (menu_description, kernel_image))
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kernel_args = localdata.getVar('UBOOT_EXTLINUX_KERNEL_ARGS')
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initrd = localdata.getVar('UBOOT_EXTLINUX_INITRD')
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if initrd:
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cfgfile.write('\tINITRD %s\n'% initrd)
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kernel_args = root + " " + kernel_args
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cfgfile.write('\tAPPEND %s %s\n' % (kernel_args, extlinux_console))
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except OSError:
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bb.fatal('Unable to open %s' % (cfile))
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}
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addtask create_multiextlinux_config before do_compile
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do_create_multiextlinux_config[dirs] += "${B}"
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do_create_multiextlinux_config[cleandirs] += "${B}"
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# Manage specific var dependency:
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# Because of local overrides within create_multiextlinux_config() function, we
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# need to make sure to add each variables to the vardeps list.
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UBOOT_EXTLINUX_TARGET_VARS = "LABELS BOOTPREFIXES TIMEOUT DEFAULT_LABEL"
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do_create_multiextlinux_config[vardeps] += "${@' '.join(['UBOOT_EXTLINUX_%s_%s' % (v, l) for v in d.getVar('UBOOT_EXTLINUX_TARGET_VARS').split() for l in d.getVar('UBOOT_EXTLINUX_TARGETS').split()])}"
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UBOOT_EXTLINUX_LABELS_VARS = "CONSOLE MENU_DESCRIPTION ROOT KERNEL_IMAGE FDTDIR FDT KERNEL_ARGS INITRD"
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UBOOT_EXTLINUX_LABELS_CONFIGURED = "${@" ".join(map(lambda t: "%s" % d.getVar("UBOOT_EXTLINUX_LABELS_%s" % t), d.getVar('UBOOT_EXTLINUX_TARGETS').split()))}"
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do_create_multiextlinux_config[vardeps] += "${@' '.join(['UBOOT_EXTLINUX_%s_%s' % (v, l) for v in d.getVar('UBOOT_EXTLINUX_LABELS_VARS').split() for l in d.getVar('UBOOT_EXTLINUX_LABELS_CONFIGURED').split()])}"
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