1SUMMARY = "Baremetal examples to work with the several QEMU architectures supported on OpenEmbedded" 2HOMEPAGE = "https://github.com/aehs29/baremetal-helloqemu" 3DESCRIPTION = "These are introductory examples to showcase the use of QEMU to run baremetal applications." 4LICENSE = "MIT" 5LIC_FILES_CHKSUM = "file://LICENSE;md5=39346640a23c701e4f459e05f56f4449" 6 7SRCREV = "db2bf750eaef7fc0832e13ada8291343bbcc3afe" 8PV = "0.1+git" 9 10SRC_URI = "git://github.com/ahcbb6/baremetal-helloqemu.git;protocol=https;branch=master" 11UPSTREAM_VERSION_UNKNOWN="1" 12 13S = "${WORKDIR}/git" 14 15# The following variables should be set to accomodate each application 16BAREMETAL_BINNAME ?= "hello_baremetal_${MACHINE}" 17IMAGE_LINK_NAME ?= "baremetal-helloworld-image-${MACHINE}" 18IMAGE_NAME_SUFFIX ?= "" 19 20# Baremetal-Image creates the proper wiring, assumes the output is provided in 21# binary and ELF format, installed on ${base_libdir}/firmware/ , we want a 22# package to be created since we might have some way of updating the baremetal 23# firmware from Linux 24inherit baremetal-image 25 26 27# startup code for x86 uses NASM syntax 28DEPENDS:qemux86:append = " nasm-native" 29 30# These parameters are app specific for this example 31# This will be translated automatically to the architecture and 32# machine that QEMU uses on OE, e.g. -machine virt -cpu cortex-a57 33# but the examples can also be run on other architectures/machines 34# such as vexpress-a15 by overriding the setting on the machine.conf 35COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64|qemuriscv64|qemuriscv32|qemux86|qemux86-64" 36 37BAREMETAL_QEMUARCH ?= "" 38BAREMETAL_QEMUARCH:qemuarmv5 = "versatile" 39BAREMETAL_QEMUARCH:qemuarm = "arm" 40BAREMETAL_QEMUARCH:qemuarm64 = "aarch64" 41BAREMETAL_QEMUARCH:qemuriscv64 = "riscv64" 42BAREMETAL_QEMUARCH:qemuriscv32 = "riscv32" 43BAREMETAL_QEMUARCH:qemux86 = "x86" 44BAREMETAL_QEMUARCH:qemux86-64 = "x86-64" 45 46EXTRA_OEMAKE:append = " QEMUARCH=${BAREMETAL_QEMUARCH} V=1" 47 48# qemux86-64 uses a different Makefile 49do_compile:prepend:qemux86-64(){ 50 cd x86-64 51} 52 53# Install binaries on the proper location for baremetal-image to fetch and deploy 54do_install(){ 55 install -d ${D}/${base_libdir}/firmware 56 install -m 755 ${B}/build/hello_baremetal_${BAREMETAL_QEMUARCH}.bin ${D}/${base_libdir}/firmware/${BAREMETAL_BINNAME}.bin 57 install -m 755 ${B}/build/hello_baremetal_${BAREMETAL_QEMUARCH}.elf ${D}/${base_libdir}/firmware/${BAREMETAL_BINNAME}.elf 58} 59 60FILES:${PN} += " \ 61 ${base_libdir}/firmware/${BAREMETAL_BINNAME}.bin \ 62 ${base_libdir}/firmware/${BAREMETAL_BINNAME}.elf \ 63" 64 65# qemux86-64 boots from iso rather than -kernel, create image to boot from 66do_image:append:qemux86-64(){ 67 dd if=/dev/zero of=${B}/build/img.iso bs=1M count=10 status=none 68 dd if=${B}/build/stage1.bin of=${B}/build/img.iso bs=512 count=1 conv=notrunc 69 dd if=${B}/build/stage2.bin of=${B}/build/img.iso bs=512 seek=1 count=64 conv=notrunc 70 dd if=${B}/build/hello_baremetal_x86-64.bin of=${B}/build/img.iso bs=512 seek=65 conv=notrunc 71 install ${B}/build/img.iso ${IMGDEPLOYDIR}/${IMAGE_LINK_NAME}.iso 72} 73