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+SUMMARY = "Baremetal examples to work with the several QEMU architectures supported on OpenEmbedded"
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+HOMEPAGE = "https://github.com/aehs29/baremetal-helloqemu"
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+LICENSE = "MIT"
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+LIC_FILES_CHKSUM = "file://LICENSE;md5=39346640a23c701e4f459e05f56f4449"
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+
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+SRCREV = "99f4fa4a3b266b42b52af302610b0f4f429ba5e3"
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+PV = "0.1+git${SRCPV}"
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+
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+SRC_URI = "git://github.com/aehs29/baremetal-helloqemu.git;protocol=https;branch=master"
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+
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+S = "${WORKDIR}/git/"
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+
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+# These examples are not meant to be built when using either musl or glibc
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+COMPATIBLE_HOST_libc-musl_class-target = "null"
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+COMPATIBLE_HOST_libc-glibc_class-target = "null"
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+
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+# This will be translated automatically to the architecture and
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+# machine that QEMU uses on OE, e.g. -machine virt -cpu cortex-a57
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+# but the examples can also be run on other architectures/machines
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+# such as vexpress-a15 by overriding the setting on the machine.conf
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+COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64"
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+
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+BAREMETAL_QEMUARCH ?= ""
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+BAREMETAL_QEMUARCH_qemuarmv5 = "versatile"
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+BAREMETAL_QEMUARCH_qemuarm = "arm"
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+BAREMETAL_QEMUARCH_qemuarm64 = "aarch64"
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+
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+
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+EXTRA_OEMAKE_append = " QEMUARCH=${BAREMETAL_QEMUARCH} V=1"
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+
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+do_install(){
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+ install -d ${D}/${datadir}
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+ install -m 755 ${B}build/hello_baremetal_${BAREMETAL_QEMUARCH}.bin ${D}/${datadir}/hello_baremetal_${MACHINE}.bin
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+ install -m 755 ${B}build/hello_baremetal_${BAREMETAL_QEMUARCH}.elf ${D}/${datadir}/hello_baremetal_${MACHINE}.elf
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+}
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+
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+# Borrowed from meta-freertos
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+inherit rootfs-postcommands
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+inherit deploy
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+do_deploy[dirs] = "${DEPLOYDIR} ${DEPLOY_DIR_IMAGE}"
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+do_rootfs[dirs] = "${DEPLOYDIR} ${DEPLOY_DIR_IMAGE}"
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+DEPLOYDIR = "${IMGDEPLOYDIR}"
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+IMAGE_LINK_NAME ?= "baremetal-helloworld-image-${MACHINE}"
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+IMAGE_NAME_SUFFIX ?= ""
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+
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+do_deploy(){
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+ install ${D}/${datadir}/hello_baremetal_${MACHINE}.bin ${DEPLOYDIR}/${IMAGE_LINK_NAME}.bin
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+ install ${D}/${datadir}/hello_baremetal_${MACHINE}.elf ${DEPLOYDIR}/${IMAGE_LINK_NAME}.elf
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+}
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+
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+do_image(){
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+ :
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+}
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+
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+FILES_${PN} += " \
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+ ${datadir}/hello_baremetal_${MACHINE}.bin \
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+ ${datadir}/hello_baremetal_${MACHINE}.elf \
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+"
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+
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+python do_rootfs(){
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+ from oe.utils import execute_pre_post_process
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+ from pathlib import Path
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+
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+ # Write empty manifest testdate file
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+ deploy_dir = d.getVar('DEPLOYDIR')
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+ link_name = d.getVar('IMAGE_LINK_NAME')
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+ manifest_name = d.getVar('IMAGE_MANIFEST')
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+
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+ Path(manifest_name).touch()
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+ if os.path.exists(manifest_name) and link_name:
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+ manifest_link = deploy_dir + "/" + link_name + ".manifest"
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+ if os.path.lexists(manifest_link):
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+ os.remove(manifest_link)
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+ os.symlink(os.path.basename(manifest_name), manifest_link)
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+ execute_pre_post_process(d, d.getVar('ROOTFS_POSTPROCESS_COMMAND'))
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+}
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+
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+# QEMU generic FreeRTOS parameters
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+QB_DEFAULT_KERNEL = "${IMAGE_LINK_NAME}.bin"
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+QB_MEM = "-m 256"
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+QB_OPT_APPEND = "-nographic"
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+QB_DEFAULT_FSTYPE = "bin"
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+QB_DTB = ""
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+
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+# This next part is necessary to trick the build system into thinking
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+# its building an image recipe so it generates the qemuboot.conf
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+addtask do_deploy after do_write_qemuboot_conf before do_build
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+addtask do_rootfs before do_deploy after do_install
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+addtask do_image after do_rootfs before do_build
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+inherit qemuboot
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+
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+# Based on image.bbclass to make sure we build qemu
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+python(){
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+ # do_addto_recipe_sysroot doesnt exist for all recipes, but we need it to have
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+ # /usr/bin on recipe-sysroot (qemu) populated
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+ def extraimage_getdepends(task):
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+ deps = ""
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+ for dep in (d.getVar('EXTRA_IMAGEDEPENDS') or "").split():
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+ # Make sure we only add it for qemu
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+ if 'qemu' in dep:
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+ deps += " %s:%s" % (dep, task)
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+ return deps
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+ d.appendVarFlag('do_image', 'depends', extraimage_getdepends('do_addto_recipe_sysroot'))
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+ d.appendVarFlag('do_image', 'depends', extraimage_getdepends('do_populate_sysroot'))
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+}
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