| Andrew Geissler | 517393d | 2023-01-13 08:55:19 -0600 | [diff] [blame^] | 1 | SUMMARY = "Baremetal examples to work with the several QEMU architectures supported on OpenEmbedded" |
| 2 | HOMEPAGE = "https://github.com/aehs29/baremetal-helloqemu" |
| 3 | DESCRIPTION = "These are introductory examples to showcase the use of QEMU to run baremetal applications." |
| 4 | LICENSE = "MIT" |
| 5 | LIC_FILES_CHKSUM = "file://LICENSE;md5=39346640a23c701e4f459e05f56f4449" |
| 6 | |
| 7 | SRCREV = "22016ecbb9fb6c5f3a7a06698aea7ff8a701c166" |
| 8 | PV = "0.1+git${SRCPV}" |
| 9 | |
| 10 | SRC_URI = "git://github.com/aehs29/baremetal-helloqemu.git;protocol=https;branch=master" |
| 11 | UPSTREAM_VERSION_UNKNOWN="1" |
| 12 | |
| 13 | S = "${WORKDIR}/git" |
| 14 | |
| 15 | # The following variables should be set to accomodate each application |
| 16 | BAREMETAL_BINNAME ?= "hello_baremetal_${MACHINE}" |
| 17 | IMAGE_LINK_NAME ?= "baremetal-helloworld-image-${MACHINE}" |
| 18 | IMAGE_NAME_SUFFIX ?= "" |
| 19 | |
| 20 | # Baremetal-Image creates the proper wiring, assumes the output is provided in |
| 21 | # binary and ELF format, installed on ${base_libdir}/firmware/ , we want a |
| 22 | # package to be created since we might have some way of updating the baremetal |
| 23 | # firmware from Linux |
| 24 | inherit baremetal-image |
| 25 | |
| 26 | |
| 27 | # startup code for x86 uses NASM syntax |
| 28 | DEPENDS:qemux86:append = " nasm-native" |
| 29 | |
| 30 | # These parameters are app specific for this example |
| 31 | # This will be translated automatically to the architecture and |
| 32 | # machine that QEMU uses on OE, e.g. -machine virt -cpu cortex-a57 |
| 33 | # but the examples can also be run on other architectures/machines |
| 34 | # such as vexpress-a15 by overriding the setting on the machine.conf |
| 35 | COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64|qemuriscv64|qemuriscv32|qemux86|qemux86-64" |
| 36 | |
| 37 | BAREMETAL_QEMUARCH ?= "" |
| 38 | BAREMETAL_QEMUARCH:qemuarmv5 = "versatile" |
| 39 | BAREMETAL_QEMUARCH:qemuarm = "arm" |
| 40 | BAREMETAL_QEMUARCH:qemuarm64 = "aarch64" |
| 41 | BAREMETAL_QEMUARCH:qemuriscv64 = "riscv64" |
| 42 | BAREMETAL_QEMUARCH:qemuriscv32 = "riscv32" |
| 43 | BAREMETAL_QEMUARCH:qemux86 = "x86" |
| 44 | BAREMETAL_QEMUARCH:qemux86-64 = "x86-64" |
| 45 | |
| 46 | EXTRA_OEMAKE:append = " QEMUARCH=${BAREMETAL_QEMUARCH} V=1" |
| 47 | |
| 48 | # qemux86-64 uses a different Makefile |
| 49 | do_compile:prepend:qemux86-64(){ |
| 50 | cd x86-64 |
| 51 | } |
| 52 | |
| 53 | # Install binaries on the proper location for baremetal-image to fetch and deploy |
| 54 | do_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/${BAREMETAL_BINNAME}.elf |
| 58 | } |
| 59 | |
| 60 | FILES:${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 |
| 66 | do_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 | } |