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Diffstat (limited to 'meta/recipes-extended/baremetal-example/baremetal-helloworld_git.bb')
| -rw-r--r-- | meta/recipes-extended/baremetal-example/baremetal-helloworld_git.bb | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/meta/recipes-extended/baremetal-example/baremetal-helloworld_git.bb b/meta/recipes-extended/baremetal-example/baremetal-helloworld_git.bb new file mode 100644 index 0000000000..6832ccc541 --- /dev/null +++ b/meta/recipes-extended/baremetal-example/baremetal-helloworld_git.bb @@ -0,0 +1,72 @@ +SUMMARY = "Baremetal examples to work with the several QEMU architectures supported on OpenEmbedded" +HOMEPAGE = "https://github.com/aehs29/baremetal-helloqemu" +DESCRIPTION = "These are introductory examples to showcase the use of QEMU to run baremetal applications." +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://LICENSE;md5=39346640a23c701e4f459e05f56f4449" + +SRCREV = "db2bf750eaef7fc0832e13ada8291343bbcc3afe" +PV = "0.1+git" + +SRC_URI = "git://github.com/ahcbb6/baremetal-helloqemu.git;protocol=https;branch=master" +UPSTREAM_VERSION_UNKNOWN="1" + +S = "${WORKDIR}/git" + +# The following variables should be set to accomodate each application +BAREMETAL_BINNAME ?= "hello_baremetal_${MACHINE}" +IMAGE_LINK_NAME ?= "baremetal-helloworld-image-${MACHINE}" +IMAGE_NAME_SUFFIX ?= "" + +# Baremetal-Image creates the proper wiring, assumes the output is provided in +# binary and ELF format, installed on ${base_libdir}/firmware/ , we want a +# package to be created since we might have some way of updating the baremetal +# firmware from Linux +inherit baremetal-image + + +# startup code for x86 uses NASM syntax +DEPENDS:qemux86:append = " nasm-native" + +# These parameters are app specific for this example +# This will be translated automatically to the architecture and +# machine that QEMU uses on OE, e.g. -machine virt -cpu cortex-a57 +# but the examples can also be run on other architectures/machines +# such as vexpress-a15 by overriding the setting on the machine.conf +COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64|qemuriscv64|qemuriscv32|qemux86|qemux86-64" + +BAREMETAL_QEMUARCH ?= "" +BAREMETAL_QEMUARCH:qemuarmv5 = "versatile" +BAREMETAL_QEMUARCH:qemuarm = "arm" +BAREMETAL_QEMUARCH:qemuarm64 = "aarch64" +BAREMETAL_QEMUARCH:qemuriscv64 = "riscv64" +BAREMETAL_QEMUARCH:qemuriscv32 = "riscv32" +BAREMETAL_QEMUARCH:qemux86 = "x86" +BAREMETAL_QEMUARCH:qemux86-64 = "x86-64" + +EXTRA_OEMAKE:append = " QEMUARCH=${BAREMETAL_QEMUARCH} V=1" + +# qemux86-64 uses a different Makefile +do_compile:prepend:qemux86-64(){ + cd x86-64 +} + +# Install binaries on the proper location for baremetal-image to fetch and deploy +do_install(){ + install -d ${D}/${base_libdir}/firmware + install -m 755 ${B}/build/hello_baremetal_${BAREMETAL_QEMUARCH}.bin ${D}/${base_libdir}/firmware/${BAREMETAL_BINNAME}.bin + install -m 755 ${B}/build/hello_baremetal_${BAREMETAL_QEMUARCH}.elf ${D}/${base_libdir}/firmware/${BAREMETAL_BINNAME}.elf +} + +FILES:${PN} += " \ + ${base_libdir}/firmware/${BAREMETAL_BINNAME}.bin \ + ${base_libdir}/firmware/${BAREMETAL_BINNAME}.elf \ +" + +# qemux86-64 boots from iso rather than -kernel, create image to boot from +do_image:append:qemux86-64(){ + dd if=/dev/zero of=${B}/build/img.iso bs=1M count=10 status=none + dd if=${B}/build/stage1.bin of=${B}/build/img.iso bs=512 count=1 conv=notrunc + dd if=${B}/build/stage2.bin of=${B}/build/img.iso bs=512 seek=1 count=64 conv=notrunc + dd if=${B}/build/hello_baremetal_x86-64.bin of=${B}/build/img.iso bs=512 seek=65 conv=notrunc + install ${B}/build/img.iso ${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.iso +} |