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| -rw-r--r-- | meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb b/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb new file mode 100644 index 0000000000..d8633702fc --- /dev/null +++ b/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb @@ -0,0 +1,105 @@ +SUMMARY = "Baremetal examples to work with the several QEMU architectures supported on OpenEmbedded" +HOMEPAGE = "https://github.com/aehs29/baremetal-helloqemu" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://LICENSE;md5=39346640a23c701e4f459e05f56f4449" + +SRCREV = "99f4fa4a3b266b42b52af302610b0f4f429ba5e3" +PV = "0.1+git${SRCPV}" + +SRC_URI = "git://github.com/aehs29/baremetal-helloqemu.git;protocol=https;branch=master" + +S = "${WORKDIR}/git/" + +# These examples are not meant to be built when using either musl or glibc +COMPATIBLE_HOST_libc-musl_class-target = "null" +COMPATIBLE_HOST_libc-glibc_class-target = "null" + +# This will be translated automatically to the architecture and +# machine that QEMU uses on OE, e.g. -machine virt -cpu cortex-a57 +# but the examples can also be run on other architectures/machines +# such as vexpress-a15 by overriding the setting on the machine.conf +COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64" + +BAREMETAL_QEMUARCH ?= "" +BAREMETAL_QEMUARCH_qemuarmv5 = "versatile" +BAREMETAL_QEMUARCH_qemuarm = "arm" +BAREMETAL_QEMUARCH_qemuarm64 = "aarch64" + + +EXTRA_OEMAKE_append = " QEMUARCH=${BAREMETAL_QEMUARCH} V=1" + +do_install(){ + install -d ${D}/${datadir} + install -m 755 ${B}build/hello_baremetal_${BAREMETAL_QEMUARCH}.bin ${D}/${datadir}/hello_baremetal_${MACHINE}.bin + install -m 755 ${B}build/hello_baremetal_${BAREMETAL_QEMUARCH}.elf ${D}/${datadir}/hello_baremetal_${MACHINE}.elf +} + +# Borrowed from meta-freertos +inherit rootfs-postcommands +inherit deploy +do_deploy[dirs] = "${DEPLOYDIR} ${DEPLOY_DIR_IMAGE}" +do_rootfs[dirs] = "${DEPLOYDIR} ${DEPLOY_DIR_IMAGE}" +DEPLOYDIR = "${IMGDEPLOYDIR}" +IMAGE_LINK_NAME ?= "baremetal-helloworld-image-${MACHINE}" +IMAGE_NAME_SUFFIX ?= "" + +do_deploy(){ + install ${D}/${datadir}/hello_baremetal_${MACHINE}.bin ${DEPLOYDIR}/${IMAGE_LINK_NAME}.bin + install ${D}/${datadir}/hello_baremetal_${MACHINE}.elf ${DEPLOYDIR}/${IMAGE_LINK_NAME}.elf +} + +do_image(){ + : +} + +FILES_${PN} += " \ + ${datadir}/hello_baremetal_${MACHINE}.bin \ + ${datadir}/hello_baremetal_${MACHINE}.elf \ +" + +python do_rootfs(){ + from oe.utils import execute_pre_post_process + from pathlib import Path + + # Write empty manifest testdate file + deploy_dir = d.getVar('DEPLOYDIR') + link_name = d.getVar('IMAGE_LINK_NAME') + manifest_name = d.getVar('IMAGE_MANIFEST') + + Path(manifest_name).touch() + if os.path.exists(manifest_name) and link_name: + manifest_link = deploy_dir + "/" + link_name + ".manifest" + if os.path.lexists(manifest_link): + os.remove(manifest_link) + os.symlink(os.path.basename(manifest_name), manifest_link) + execute_pre_post_process(d, d.getVar('ROOTFS_POSTPROCESS_COMMAND')) +} + +# QEMU generic FreeRTOS parameters +QB_DEFAULT_KERNEL = "${IMAGE_LINK_NAME}.bin" +QB_MEM = "-m 256" +QB_OPT_APPEND = "-nographic" +QB_DEFAULT_FSTYPE = "bin" +QB_DTB = "" + +# This next part is necessary to trick the build system into thinking +# its building an image recipe so it generates the qemuboot.conf +addtask do_deploy after do_write_qemuboot_conf before do_build +addtask do_rootfs before do_deploy after do_install +addtask do_image after do_rootfs before do_build +inherit qemuboot + +# Based on image.bbclass to make sure we build qemu +python(){ + # do_addto_recipe_sysroot doesnt exist for all recipes, but we need it to have + # /usr/bin on recipe-sysroot (qemu) populated + def extraimage_getdepends(task): + deps = "" + for dep in (d.getVar('EXTRA_IMAGEDEPENDS') or "").split(): + # Make sure we only add it for qemu + if 'qemu' in dep: + deps += " %s:%s" % (dep, task) + return deps + d.appendVarFlag('do_image', 'depends', extraimage_getdepends('do_addto_recipe_sysroot')) + d.appendVarFlag('do_image', 'depends', extraimage_getdepends('do_populate_sysroot')) +} |