From patchwork Sun Jan 8 19:15:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alejandro Enedino Hernandez Samaniego X-Patchwork-Id: 17862 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5064DC54EBE for ; Sun, 8 Jan 2023 19:15:53 +0000 (UTC) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mx.groups.io with SMTP id smtpd.web11.52547.1673205345301614181 for ; Sun, 08 Jan 2023 11:15:45 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=none, err=permanent DNS error (domain: enedino.org, ip: 13.77.154.182, mailfrom: alejandro@enedino.org) Received: from alsamon-xub.lan (cpe-68-201-55-29.elp.res.rr.com [68.201.55.29]) by linux.microsoft.com (Postfix) with ESMTPSA id 2C37420A119D; Sun, 8 Jan 2023 11:15:44 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 2C37420A119D From: Alejandro Enedino Hernandez Samaniego To: openembedded-core@lists.openembedded.org Cc: Alejandro Enedino Hernandez Samaniego Subject: [PATCH 1/3] baremetal-helloworld: Enable x86 and x86-64 ports Date: Sun, 8 Jan 2023 12:15:23 -0700 Message-Id: <20230108191525.1312582-1-alejandro@enedino.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Sun, 08 Jan 2023 19:15:53 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/175636 - The qemux86 port for helloworld-baremetal builds in the standard way, however, it uses NASM syntax for the startup code, hence we include a dependency to nasm-native, QEMU forces us to use an ELF file rather than a bin file to boot from this architecture using the -kernel parameter. - QEMU refuses to boot using the -kernel parameter for files containing an ELF64 header [1], instead, it requires a multiboot2 compatible image. We could create an image that contains a multiboot2 header by piggybacking into grub2-native, specifically grub-mkrescue, but it requires some extra runtime dependencies (xorriso which is currently part of meta-oe), and assumes a grub installation exists on the host. Due to host contamination and dependency complications, we dont rely on grub2, but rather do this process manually instead, the x86-64 port contains a stage1 bootloader, stage2 bootloader and a 64 bit baremetal app (multiboot2 compatible), booting into real (16 bit), protected (32 bit) and long (64 bit) modes, eventually running the helloworld-baremetal app. This is the reason why we need the code changes to use a separate Makefile, and create an image specifically for qemux86-64. $ runqemu nographic Booting from ROM.. Hello OpenEmbedded on x86! $ runqemu nographic Starting Stage 1 Bootloader Loading Stage 2 Bootloader Stage 2 Loaded. Jumping to Stage2 Bootloader In Stage 2 Done Hello OpenEmbedded on x86-64! [1] https://gitlab.com/qemu-project/qemu/-/blob/v7.2.0/hw/i386/multiboot.c#L199 Signed-off-by: Alejandro Enedino Hernandez Samaniego --- .../baremetal-helloworld_git.bb | 22 +++++++++++++++++-- meta/classes-recipe/baremetal-image.bbclass | 5 +++++ 2 files changed, 25 insertions(+), 2 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 index d11e2e530e..fede17b0f0 100644 --- a/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb +++ b/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb @@ -4,7 +4,7 @@ DESCRIPTION = "These are introductory examples to showcase the use of QEMU to ru LICENSE = "MIT" LIC_FILES_CHKSUM = "file://LICENSE;md5=39346640a23c701e4f459e05f56f4449" -SRCREV = "31b4e5a337018b4a00a7426b0e5ed83b81df30c7" +SRCREV = "22016ecbb9fb6c5f3a7a06698aea7ff8a701c166" PV = "0.1+git${SRCPV}" SRC_URI = "git://github.com/aehs29/baremetal-helloqemu.git;protocol=https;branch=master" @@ -23,12 +23,15 @@ IMAGE_NAME_SUFFIX ?= "" inherit baremetal-image +# startup code for x86 uses NASM syntax +DEPENDS:qemux86:append = " nasm-native" + # These parameters are app specific for this example # This will be translated automatically to the architecture and # machine that QEMU uses on OE, e.g. -machine virt -cpu cortex-a57 # but the examples can also be run on other architectures/machines # such as vexpress-a15 by overriding the setting on the machine.conf -COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64|qemuriscv64|qemuriscv32" +COMPATIBLE_MACHINE = "qemuarmv5|qemuarm|qemuarm64|qemuriscv64|qemuriscv32|qemux86|qemux86-64" BAREMETAL_QEMUARCH ?= "" BAREMETAL_QEMUARCH:qemuarmv5 = "versatile" @@ -36,9 +39,15 @@ BAREMETAL_QEMUARCH:qemuarm = "arm" BAREMETAL_QEMUARCH:qemuarm64 = "aarch64" BAREMETAL_QEMUARCH:qemuriscv64 = "riscv64" BAREMETAL_QEMUARCH:qemuriscv32 = "riscv32" +BAREMETAL_QEMUARCH:qemux86 = "x86" +BAREMETAL_QEMUARCH:qemux86-64 = "x86-64" EXTRA_OEMAKE:append = " QEMUARCH=${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(){ @@ -51,3 +60,12 @@ 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 +} diff --git a/meta/classes-recipe/baremetal-image.bbclass b/meta/classes-recipe/baremetal-image.bbclass index 513155e9ae..70791f999a 100644 --- a/meta/classes-recipe/baremetal-image.bbclass +++ b/meta/classes-recipe/baremetal-image.bbclass @@ -86,6 +86,11 @@ QB_DEFAULT_FSTYPE ?= "bin" QB_DTB ?= "" QB_OPT_APPEND:append = " -nographic" +# QEMU x86 requires an .elf kernel to boot rather than a .bin +QB_DEFAULT_KERNEL:qemux86 ?= "${IMAGE_LINK_NAME}.elf" +# QEMU x86-64 refuses to boot from -kernel, needs a multiboot compatible image +QB_DEFAULT_FSTYPE:qemux86-64 ?= "iso" + # RISC-V tunes set the BIOS, unset, and instruct QEMU to # ignore the BIOS and boot from -kernel QB_DEFAULT_BIOS:qemuriscv64 = "" From patchwork Sun Jan 8 19:15:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alejandro Enedino Hernandez Samaniego X-Patchwork-Id: 17861 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4EFA9C54EBD for ; Sun, 8 Jan 2023 19:15:53 +0000 (UTC) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mx.groups.io with SMTP id smtpd.web10.52502.1673205345682145665 for ; Sun, 08 Jan 2023 11:15:45 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=none, err=permanent DNS error (domain: enedino.org, ip: 13.77.154.182, mailfrom: alejandro@enedino.org) Received: from alsamon-xub.lan (cpe-68-201-55-29.elp.res.rr.com [68.201.55.29]) by linux.microsoft.com (Postfix) with ESMTPSA id A735120B8762; Sun, 8 Jan 2023 11:15:44 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com A735120B8762 From: Alejandro Enedino Hernandez Samaniego To: openembedded-core@lists.openembedded.org Cc: Alejandro Enedino Hernandez Samaniego Subject: [PATCH 2/3] baremetal-helloworld: Move from skeleton to recipes-extended matching what rust-hello-world is doing Date: Sun, 8 Jan 2023 12:15:24 -0700 Message-Id: <20230108191525.1312582-2-alejandro@enedino.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230108191525.1312582-1-alejandro@enedino.org> References: <20230108191525.1312582-1-alejandro@enedino.org> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Sun, 08 Jan 2023 19:15:53 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/175637 Signed-off-by: Alejandro Enedino Hernandez Samaniego --- .../baremetal-example}/baremetal-helloworld_git.bb | 0 1 file changed, 0 insertions(+), 0 deletions(-) rename {meta-skeleton/recipes-baremetal/baremetal-examples => meta/recipes-extended/baremetal-example}/baremetal-helloworld_git.bb (100%) diff --git a/meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb b/meta/recipes-extended/baremetal-example/baremetal-helloworld_git.bb similarity index 100% rename from meta-skeleton/recipes-baremetal/baremetal-examples/baremetal-helloworld_git.bb rename to meta/recipes-extended/baremetal-example/baremetal-helloworld_git.bb From patchwork Sun Jan 8 19:15:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alejandro Enedino Hernandez Samaniego X-Patchwork-Id: 17863 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5158AC677F1 for ; Sun, 8 Jan 2023 19:15:53 +0000 (UTC) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by mx.groups.io with SMTP id smtpd.web10.52503.1673205345915586173 for ; Sun, 08 Jan 2023 11:15:45 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=none, err=permanent DNS error (domain: enedino.org, ip: 13.77.154.182, mailfrom: alejandro@enedino.org) Received: from alsamon-xub.lan (cpe-68-201-55-29.elp.res.rr.com [68.201.55.29]) by linux.microsoft.com (Postfix) with ESMTPSA id 3A80B20A119E; Sun, 8 Jan 2023 11:15:45 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 3A80B20A119E From: Alejandro Enedino Hernandez Samaniego To: openembedded-core@lists.openembedded.org Cc: Alejandro Enedino Hernandez Samaniego Subject: [PATCH 3/3] oe-selftest: Add baremetal toolchain test Date: Sun, 8 Jan 2023 12:15:25 -0700 Message-Id: <20230108191525.1312582-3-alejandro@enedino.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230108191525.1312582-1-alejandro@enedino.org> References: <20230108191525.1312582-1-alejandro@enedino.org> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Sun, 08 Jan 2023 19:15:53 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/175638 Signed-off-by: Alejandro Enedino Hernandez Samaniego --- meta/lib/oeqa/selftest/cases/baremetal.py | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 meta/lib/oeqa/selftest/cases/baremetal.py diff --git a/meta/lib/oeqa/selftest/cases/baremetal.py b/meta/lib/oeqa/selftest/cases/baremetal.py new file mode 100644 index 0000000000..3f70feebad --- /dev/null +++ b/meta/lib/oeqa/selftest/cases/baremetal.py @@ -0,0 +1,13 @@ + +# +# Copyright OpenEmbedded Contributors +# +# SPDX-License-Identifier: MIT +# + +from oeqa.selftest.case import OESelftestTestCase +from oeqa.utils.commands import bitbake + +class BaremetalTest(OESelftestTestCase): + self.write_config('TCLIBC = "baremetal"') + bitbake('baremetal-helloworld')