poky/meta/classes/kernel-uimage.bbclass
Alexey Brodkin c0f89c609d u-boot: Add mkenvimage tool
This utility is used for creation of images containing
usable in run-time U-Boot environment.

As of today this utility is added per-board like here [1]
for Intel Edison board.

[1] http://git.yoctoproject.org/cgit/cgit.cgi/meta-intel-edison/tree/meta-intel-edison-bsp/recipes-bsp/u-boot/u-boot-tools_2014.04.bb

Given there're quite some U-Boot tools that we may want to add later
this recipe name switch from "u-boot-mkimage" to generic "u-boot-tools"
still for compatibility we provide "u-boot-mkimage" with help
of PROVIDES as well as proposed "u-boot-mkenvimage".

(From OE-Core rev: 314885b16e5d26d27d46a4bfb0d581b27a03b8fe)

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Martin Jansa <martin.jansa@gmail.com>
Cc: Ross Burton <ross.burton@intel.com>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-11-23 23:35:19 +00:00

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inherit kernel-uboot
python __anonymous () {
if "uImage" in d.getVar('KERNEL_IMAGETYPES'):
depends = d.getVar("DEPENDS")
depends = "%s u-boot-tools-native" % depends
d.setVar("DEPENDS", depends)
# Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
# to kernel.bbclass . We override the variable here, since we need
# to build uImage using the kernel build system if and only if
# KEEPUIMAGE == yes. Otherwise, we pack compressed vmlinux into
# the uImage .
if d.getVar("KEEPUIMAGE") != 'yes':
typeformake = d.getVar("KERNEL_IMAGETYPE_FOR_MAKE") or ""
if "uImage" in typeformake.split():
d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake.replace('uImage', 'vmlinux'))
# Enable building of uImage with mkimage
bb.build.addtask('do_uboot_mkimage', 'do_install', 'do_kernel_link_images', d)
}
do_uboot_mkimage[dirs] += "${B}"
do_uboot_mkimage() {
uboot_prep_kimage
ENTRYPOINT=${UBOOT_ENTRYPOINT}
if [ -n "${UBOOT_ENTRYSYMBOL}" ]; then
ENTRYPOINT=`${HOST_PREFIX}nm ${B}/vmlinux | \
awk '$3=="${UBOOT_ENTRYSYMBOL}" {print "0x"$1;exit}'`
fi
uboot-mkimage -A ${UBOOT_ARCH} -O linux -T kernel -C "${linux_comp}" -a ${UBOOT_LOADADDRESS} -e $ENTRYPOINT -n "${DISTRO_NAME}/${PV}/${MACHINE}" -d linux.bin ${B}/arch/${ARCH}/boot/uImage
rm -f linux.bin
}