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Andrew Geissler517393d2023-01-13 08:55:19 -06001SUMMARY = "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
Andrew Geissler8f840682023-07-21 09:09:43 -05007SRCREV = "fc7c43d138185028b6ac14c83f6492fce26eca95"
Andrew Geissler5082cc72023-09-11 08:41:39 -04008PV = "0.1+git"
Andrew Geissler517393d2023-01-13 08:55:19 -06009
Patrick Williams520786c2023-06-25 16:20:36 -050010SRC_URI = "git://github.com/ahcbb6/baremetal-helloqemu.git;protocol=https;branch=master"
Andrew Geissler517393d2023-01-13 08:55:19 -060011UPSTREAM_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}