The machines are split between bsp/linux musl-only/linux with glibc. This way the users will be able to build a purecap-musl-only environment in the future or a glibc environment with purecap being statically linked. The bsp is its own separate machine to deal with the fact that LLVM Morello is not a fully implemented toolchain (we might get build errors relating to gcc lib which needs libc, but libc is purecap only).

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- conf/bblayers.conf.sample | 16 ++ conf/layer.conf | 15 ++ conf/local.conf.sample | 177 ++++++++++++++++++++++ conf/machine/include/morello-1.5.inc | 1 + conf/machine/include/morello-common.inc | 27 ++++ conf/machine/morello-bsp.conf | 1 + conf/machine/morello-linux-glibc.conf | 3 + conf/machine/morello-linux-musl.conf | 3 + conf/multiconfig/morello-firmware.conf | 1 + conf/multiconfig/morello-linux-glibc.conf | 1 + conf/multiconfig/morello-linux-musl.conf | 1 + 11 files changed, 246 insertions(+) create mode 100644 conf/bblayers.conf.sample create mode 100644 conf/layer.conf create mode 100644 conf/local.conf.sample create mode 100644 conf/machine/include/morello-1.5.inc create mode 100644 conf/machine/include/morello-common.inc create mode 100644 conf/machine/morello-bsp.conf create mode 100644 conf/machine/morello-linux-glibc.conf create mode 100644 conf/machine/morello-linux-musl.conf create mode 100644 conf/multiconfig/morello-firmware.conf create mode 100644 conf/multiconfig/morello-linux-glibc.conf create mode 100644 conf/multiconfig/morello-linux-musl.conf

diff --git a/conf/bblayers.conf.sample b/conf/bblayers.conf.sample new file mode 100644 index 0000000..d86dbed --- /dev/null +++ b/conf/bblayers.conf.sample @@ -0,0 +1,16 @@ +# LAYER_CONF_VERSION is increased each time build/conf/bblayers.conf +# changes incompatibly +LCONF_VERSION = "7" + +BBPATH = "${TOPDIR}" + +BBFILES ?= "" + +BBLAYERS = " \ + ##OEROOT##/meta \ + ##OEROOT##/meta-poky \ + ##OEROOT##/meta-arm/meta-arm \ + ##OEROOT##/meta-arm/meta-arm-bsp \ + ##OEROOT##/meta-arm/meta-arm-toolchain \ + ##OEROOT##/meta-morello \ + " \ No newline at end of file diff --git a/conf/layer.conf b/conf/layer.conf new file mode 100644 index 0000000..5cd622e --- /dev/null +++ b/conf/layer.conf @@ -0,0 +1,15 @@ +BBPATH := "${BBPATH}:${LAYERDIR}" + +BBFILES := "${BBFILES} \ + ${LAYERDIR}/recipes-*/*/*.bb \ + ${LAYERDIR}/recipes-*/*/*.bbappend" + +BBFILE_COLLECTIONS += "meta-morello" +BBFILE_PATTERN_meta-morello := "^${LAYERDIR}/" +BBFILE_PRIORITY_meta-morello = "5" + +LAYERDEPENDS_meta-morello = " \ + core \ + meta-arm \ +" +LAYERSERIES_COMPAT_meta-morello = "kirkstone" diff --git a/conf/local.conf.sample b/conf/local.conf.sample new file mode 100644 index 0000000..ef7bc7d --- /dev/null +++ b/conf/local.conf.sample @@ -0,0 +1,177 @@ +MACHINE ?= "morello-linux-glibc" +BBMULTICONFIG = "morello-firmware morello-linux-glibc" + +BB_NUMBER_THREADS ?= "${@oe.utils.cpu_count()}" +PARALLEL_MAKE ?= "-j ${@oe.utils.cpu_count()}" + +PACKAGE_CLASSES ?= "package_rpm" + +# DISTRO ?= "poky-bleeding" + +# +# SDK target architecture +# +# This variable specifies the architecture to build SDK items for and means +# you can build the SDK packages for architectures other than the machine you are +# running the build on (i.e. building i686 packages on an x86_64 host). +# Supported values are i686, x86_64, aarch64 +#SDKMACHINE ?= "i686" + +# +# Extra image configuration defaults +# +# The EXTRA_IMAGE_FEATURES variable allows extra packages to be added to the generated +# images. Some of these options are added to certain image types automatically. The +# variable can contain the following options: +# "dbg-pkgs" - add -dbg packages for all installed packages +# (adds symbol information for debugging/profiling) +# "src-pkgs" - add -src packages for all installed packages +# (adds source code for debugging) +# "dev-pkgs" - add -dev packages for all installed packages +# (useful if you want to develop against libs in the image) +# "ptest-pkgs" - add -ptest packages for all ptest-enabled packages +# (useful if you want to run the package test suites) +# "tools-sdk" - add development tools (gcc, make, pkgconfig etc.) +# "tools-debug" - add debugging tools (gdb, strace) +# "eclipse-debug" - add Eclipse remote debugging support +# "tools-profile" - add profiling tools (oprofile, lttng, valgrind) +# "tools-testapps" - add useful testing tools (ts_print, aplay, arecord etc.) +# "debug-tweaks" - make an image suitable for development +# e.g. ssh root access has a blank password +# There are other application targets that can be used here too, see +# meta/classes/image.bbclass and meta/classes/core-image.bbclass for more details. +# We default to enabling the debugging tweaks. +EXTRA_IMAGE_FEATURES ?= "debug-tweaks" + +# +# Additional image features +# +# The following is a list of additional classes to use when building images which +# enable extra features. Some available options which can be included in this variable +# are: +# - 'buildstats' collect build statistics +USER_CLASSES ?= "buildstats" + +# +# Runtime testing of images +# +# The build system can test booting virtual machine images under qemu (an emulator) +# after any root filesystems are created and run tests against those images. It can also +# run tests against any SDK that are built. To enable this uncomment these lines. +# See classes/test{image,sdk}.bbclass for further details. +#IMAGE_CLASSES += "testimage testsdk" +#TESTIMAGE_AUTO:qemuall = "1" + +# +# Interactive shell configuration +# +# Under certain circumstances the system may need input from you and to do this it +# can launch an interactive shell. It needs to do this since the build is +# multithreaded and needs to be able to handle the case where more than one parallel +# process may require the user's attention. The default is iterate over the available +# terminal types to find one that works. +# +# Examples of the occasions this may happen are when resolving patches which cannot +# be applied, to use the devshell or the kernel menuconfig +# +# Supported values are auto, gnome, xfce, rxvt, screen, konsole (KDE 3.x only), none +# Note: currently, Konsole support only works for KDE 3.x due to the way +# newer Konsole versions behave +#OE_TERMINAL = "auto" +# By default disable interactive patch resolution (tasks will just fail instead): +PATCHRESOLVE = "noop" + +# +# Disk Space Monitoring during the build +# +# Monitor the disk space during the build. If there is less that 1GB of space or less +# than 100K inodes in any key build location (TMPDIR, DL_DIR, SSTATE_DIR), gracefully +# shutdown the build. If there is less than 100MB or 1K inodes, perform a hard halt +# of the build. The reason for this is that running completely out of space can corrupt +# files and damages the build in ways which may not be easily recoverable. +# It's necessary to monitor /tmp, if there is no space left the build will fail +# with very exotic errors. +BB_DISKMON_DIRS ??= "\ + STOPTASKS,${TMPDIR},1G,100K \ + STOPTASKS,${DL_DIR},1G,100K \ + STOPTASKS,${SSTATE_DIR},1G,100K \ + STOPTASKS,/tmp,100M,100K \ + HALT,${TMPDIR},100M,1K \ + HALT,${DL_DIR},100M,1K \ + HALT,${SSTATE_DIR},100M,1K \ + HALT,/tmp,10M,1K" + +# +# Shared-state files from other locations +# +# As mentioned above, shared state files are prebuilt cache data objects which can be +# used to accelerate build time. This variable can be used to configure the system +# to search other mirror locations for these objects before it builds the data itself. +# +# This can be a filesystem directory, or a remote url such as https or ftp. These +# would contain the sstate-cache results from previous builds (possibly from other +# machines). This variable works like fetcher MIRRORS/PREMIRRORS and points to the +# cache locations to check for the shared objects. +# NOTE: if the mirror uses the same structure as SSTATE_DIR, you need to add PATH +# at the end as shown in the examples below. This will be substituted with the +# correct path within the directory structure. +#SSTATE_MIRRORS ?= "\ +#file://.* https://someserver.tld/share/sstate/PATH%3Bdownloadfilename=PATH \ +#file://.* file:///some/local/dir/sstate/PATH" + +# +# Yocto Project SState Mirror +# +# The Yocto Project has prebuilt artefacts available for its releases, you can enable +# use of these by uncommenting the following lines. This will mean the build uses +# the network to check for artefacts at the start of builds, which does slow it down +# equally, it will also speed up the builds by not having to build things if they are +# present in the cache. It assumes you can download something faster than you can build it +# which will depend on your network. +# Note: For this to work you also need hash-equivalence passthrough to the matching server +# +#BB_HASHSERVE_UPSTREAM = "typhoon.yocto.io:8687" +#SSTATE_MIRRORS ?= "file://.* http://sstate.yoctoproject.org/all/PATH%3Bdownloadfilename=PATH" + +# +# Qemu configuration +# +# By default native qemu will build with a builtin VNC server where graphical output can be +# seen. The line below enables the SDL UI frontend too. +PACKAGECONFIG:append:pn-qemu-system-native = " sdl" +# By default libsdl2-native will be built, if you want to use your host's libSDL instead of +# the minimal libsdl built by libsdl2-native then uncomment the ASSUME_PROVIDED line below. +#ASSUME_PROVIDED += "libsdl2-native" + +# You can also enable the Gtk UI frontend, which takes somewhat longer to build, but adds +# a handy set of menus for controlling the emulator. +#PACKAGECONFIG:append:pn-qemu-system-native = " gtk+" + +# +# Hash Equivalence +# +# Enable support for automatically running a local hash equivalence server and +# instruct bitbake to use a hash equivalence aware signature generator. Hash +# equivalence improves reuse of sstate by detecting when a given sstate +# artifact can be reused as equivalent, even if the current task hash doesn't +# match the one that generated the artifact. +# +# A shared hash equivalent server can be set with "<HOSTNAME>:<PORT>" format +# +#BB_HASHSERVE = "auto" +#BB_SIGNATURE_HANDLER = "OEEquivHash" + +# +# Memory Resident Bitbake +# +# Bitbake's server component can stay in memory after the UI for the current command +# has completed. This means subsequent commands can run faster since there is no need +# for bitbake to reload cache files and so on. Number is in seconds, after which the +# server will shut down. +# +#BB_SERVER_TIMEOUT = "60" + +# CONF_VERSION is increased each time build/conf/ changes incompatibly and is used to +# track the version of this file when it was generated. This can safely be ignored if +# this doesn't mean anything to you. +CONF_VERSION = "2" diff --git a/conf/machine/include/morello-1.5.inc b/conf/machine/include/morello-1.5.inc new file mode 100644 index 0000000..ba38033 --- /dev/null +++ b/conf/machine/include/morello-1.5.inc @@ -0,0 +1 @@ +MORELLO_RELEASE_VERSION = "1.5" \ No newline at end of file diff --git a/conf/machine/include/morello-common.inc b/conf/machine/include/morello-common.inc new file mode 100644 index 0000000..31601a4 --- /dev/null +++ b/conf/machine/include/morello-common.inc @@ -0,0 +1,27 @@ +require ${COREBASE}/meta/conf/machine/include/arm/armv8-2a/tune-neoversen1.inc +require conf/machine/include/morello-1.5.inc + +MACHINEOVERRIDES =. "morello" + +LLVM_SHARED_SOURCE ?= "${TMPDIR}/work-shared/${MACHINE}/llvm-morello-source" + +MUSL_INSTALL_DIR ??="" + +C64_ARCH_TRIPLE = "aarch64-linux-musl_purecap" +A64_ARCH_TRIPLE = "aarch64-linux-gnu" + +A64_LIB_TRIPLE = "aarch64-unknown-linux-gnu" +C64_LIB_TRIPLE = "aarch64-unknown-linux-musl_purecap" + +A64_ARCH_FLAGS = "-march=armv8" +C64_ARCH_FLAGS = "-march=morello+c64 -mabi=purecap" + +MORELLO_ARCH ?= "c64" +GLOBAL_ARCH_TRIPLE ?= "${C64_ARCH_TRIPLE}" +GLOBAL_LIB_TRIPLE ?= "${C64_LIB_TRIPLE}" +GLOBAL_ARCH_FLAGS ?= "${C64_ARCH_FLAGS}" + +TMPDIR_BSP = "tmp-bsp" +TMPDIR_LINUX = "tmp-linux" + +APP_DIR ?= "pure-cap-apps" \ No newline at end of file diff --git a/conf/machine/morello-bsp.conf b/conf/machine/morello-bsp.conf new file mode 100644 index 0000000..e5c8799 --- /dev/null +++ b/conf/machine/morello-bsp.conf @@ -0,0 +1 @@ +require conf/machine/include/morello-common.inc diff --git a/conf/machine/morello-linux-glibc.conf b/conf/machine/morello-linux-glibc.conf new file mode 100644 index 0000000..6ed824d --- /dev/null +++ b/conf/machine/morello-linux-glibc.conf @@ -0,0 +1,3 @@ +require conf/machine/include/morello-common.inc + +MACHINEOVERRIDES =. "morello-linux-glibc:" diff --git a/conf/machine/morello-linux-musl.conf b/conf/machine/morello-linux-musl.conf new file mode 100644 index 0000000..e22493d --- /dev/null +++ b/conf/machine/morello-linux-musl.conf @@ -0,0 +1,3 @@ +require conf/machine/include/morello-common.inc + +MACHINEOVERRIDES =. "morello-linux-musl:" diff --git a/conf/multiconfig/morello-firmware.conf b/conf/multiconfig/morello-firmware.conf new file mode 100644 index 0000000..1473440 --- /dev/null +++ b/conf/multiconfig/morello-firmware.conf @@ -0,0 +1 @@ +MACHINE="morello-bsp" \ No newline at end of file diff --git a/conf/multiconfig/morello-linux-glibc.conf b/conf/multiconfig/morello-linux-glibc.conf new file mode 100644 index 0000000..9f9a8e8 --- /dev/null +++ b/conf/multiconfig/morello-linux-glibc.conf @@ -0,0 +1 @@ +MACHINE="morello-linux-glibc" \ No newline at end of file diff --git a/conf/multiconfig/morello-linux-musl.conf b/conf/multiconfig/morello-linux-musl.conf new file mode 100644 index 0000000..f8660f3 --- /dev/null +++ b/conf/multiconfig/morello-linux-musl.conf @@ -0,0 +1 @@ +MACHINE="morello-linux-musl" \ No newline at end of file

Append trusted-firmware-a recipe.

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- conf/machine/morello-bsp.conf | 2 +- .../trusted-firmware-a_2.%.bbappend | 46 +++++++++++++++++++ 2 files changed, 47 insertions(+), 1 deletion(-) create mode 100644 recipes-bsp/trusted-firmware-a/trusted-firmware-a_2.%.bbappend

diff --git a/conf/machine/morello-bsp.conf b/conf/machine/morello-bsp.conf index ee40190..9998fff 100644 --- a/conf/machine/morello-bsp.conf +++ b/conf/machine/morello-bsp.conf @@ -1,6 +1,6 @@ require conf/machine/include/morello-common.inc

PREFERRED_VERSION_scp-firmware ?= "2.10%" - +PREFERRED_VERSION_trusted-firmware-a ?= "2.7%"

TMPDIR = "${TOPDIR}/${TMPDIR_BSP}" \ No newline at end of file diff --git a/recipes-bsp/trusted-firmware-a/trusted-firmware-a_2.%.bbappend b/recipes-bsp/trusted-firmware-a/trusted-firmware-a_2.%.bbappend new file mode 100644 index 0000000..227dc57 --- /dev/null +++ b/recipes-bsp/trusted-firmware-a/trusted-firmware-a_2.%.bbappend @@ -0,0 +1,46 @@ +inherit llvm-morello-native + +COMPATIBLE_MACHINE = "morello" +SUMMARY = "TF-A to be compiled with LLVM Morello" +OUTPUTS_NAME = "trusted-firmware-a" +SECTION = "firmware" + +PROVIDES += "virtual/${OUTPUTS_NAME}" + +SRC_URI = "gitsm://git.morello-project.org/morello/trusted-firmware-a;protocol=https;name=tfa;branch=${SRCBRANCH}" +SRCREV_tfa = "3ce2815936774fe924ec7538151b71085c2f18d9" +PV = "2.7+git${SRCPV}" + +SRCBRANCH = "morello/master" +LIC_FILES_CHKSUM = "file://docs/license.rst;md5=b2c740efedc159745b9b31f88ff03dde" + +TFA_MBEDTLS = "1" +TFA_MBEDTLS_DIR = "mbedtls" +TFA_MBEDTLS_BRANCH = "mbedtls-2.28" +SRC_URI_MBEDTLS = "git://github.com/ARMmbed/mbedtls;protocol=https;destsuffix=git/mbedtls;name=mbedtls;branch=${TFA_MBEDTLS_BRANCH}" +SRCREV_mbedtls = "8b3f26a5ac38d4fdccbc5c5366229f3e01dafcc0" +LIC_FILES_CHKSUM_MBEDTLS = "file://mbedtls/LICENSE;md5=3b83ef96387f14655fc854ddc3c6bd57" + +TFA_PLATFORM = "morello" +TFA_UBOOT = "0" +TFA_BUILD_TARGET = "bl1 bl2 bl31 dtbs" +TFA_DEBUG = "0" + +TFA_INSTALL_TARGET = "bl1 bl2 bl31 dtbs morello-soc morello_fw_config morello_tb_fw_config morello_nt_fw_config " + +ARM_TF_ARCH = "aarch64" + +EXTRA_OEMAKE += "\ + CREATE_KEYS=1 \ + GENERATE_COT=1 \ + ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_rsa.pem \ + TRUSTED_BOARD_BOOT=1 \ + ARM_ROTPK_LOCATION=devel_rsa \ + TARGET_PLATFORM=soc \ + ENABLE_MORELLO_CAP=1 \ + ARCH='${ARM_TF_ARCH}' \ + " + +do_install:append() { + install -m 0644 ${S}/plat/arm/board/common/rotpk/arm_rotprivk_rsa.pem "${D}/firmware/"arm_rotprivk_rsa.pem +} \ No newline at end of file

Append the grub recipes. Note that due to the fact that grub requires lib gcc it should be built using the bsp machine, otherwise we will get build errors. The actual outputs are part of the Linux image that is built using the glibc/musl machines. For now this is resolved using well defined tmp dirs in the machine configs.

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- recipes-bsp/grub/files/grub-config.cfg | 37 ++++++++++++++++++++++++++ recipes-bsp/grub/grub-efi_2.%.bbappend | 22 +++++++++++++++ recipes-bsp/grub/grub_2.%.bbappend | 10 +++++++ 3 files changed, 69 insertions(+) create mode 100644 recipes-bsp/grub/files/grub-config.cfg create mode 100644 recipes-bsp/grub/grub-efi_2.%.bbappend create mode 100644 recipes-bsp/grub/grub_2.%.bbappend

diff --git a/recipes-bsp/grub/files/grub-config.cfg b/recipes-bsp/grub/files/grub-config.cfg new file mode 100644 index 0000000..2273be7 --- /dev/null +++ b/recipes-bsp/grub/files/grub-config.cfg @@ -0,0 +1,37 @@ +set debug="loader,mm" +set term="vt100" +set default="1" +set timeout="5" + +menuentry 'BusyBox Morello Platform (Device Tree)' { + devicetree /morello.dtb + linux /Image \ + acpi=off \ + console=ttyAMA0,115200 \ + debug \ + earlycon=pl011,0x2A400000 \ + ip=dhcp \ + + initrd /initramfs +} + +menuentry 'BusyBox Morello Platform (ACPI)' { + linux /Image \ + acpi=force \ + debug \ + earlycon=pl011,0x2A400000 \ + ip=dhcp \ + root=PARTUUID=%UUID% \ + + initrd /initramfs +} + +menuentry 'BusyBox Morello Platform (ACPI) - no initramfs' { + linux /Image \ + acpi=force \ + console=ttyAMA0,115200 \ + debug \ + earlycon=pl011,0x2A400000 \ + ip=dhcp \ + root=PARTUUID=%UUID% \ +} \ No newline at end of file diff --git a/recipes-bsp/grub/grub-efi_2.%.bbappend b/recipes-bsp/grub/grub-efi_2.%.bbappend new file mode 100644 index 0000000..c03b87c --- /dev/null +++ b/recipes-bsp/grub/grub-efi_2.%.bbappend @@ -0,0 +1,22 @@ +inherit deploy nopackages + +COMPATIBLE_MACHINE = "morello" +OUTPUTS_NAME = "grub-efi" + +PROVIDES += "virtual/${OUTPUTS_NAME}" + +FILESEXTRAPATHS:prepend := "${THISDIR}:" + +GRUB_BUILDIN = " boot chain configfile ext2 fat gzio help linux loadenv \ + lsefi normal ntfs ntfscomp part_gpt part_msdos progress read search \ + search_fs_file search_fs_uuid search_label terminal terminfo \ + " + +SRC_URI += "file://files/grub-config.cfg" + +do_deploy() { + install -d ${DEPLOYDIR}/${OUTPUTS_NAME} + install -m 644 ${B}/${GRUB_IMAGE_PREFIX}${GRUB_IMAGE} "${DEPLOYDIR}/${OUTPUTS_NAME}/" + install -m 644 ${WORKDIR}/files/grub-config.cfg "${DEPLOYDIR}/${OUTPUTS_NAME}/grub-config.cfg" +} +addtask deploy after do_install before do_build \ No newline at end of file diff --git a/recipes-bsp/grub/grub_2.%.bbappend b/recipes-bsp/grub/grub_2.%.bbappend new file mode 100644 index 0000000..a2f232d --- /dev/null +++ b/recipes-bsp/grub/grub_2.%.bbappend @@ -0,0 +1,10 @@ + + +EXTRA_OECONF+="\ + --disable-efiemu \ + --disable-werror \ + --enable-dependency-tracking \ + --disable-grub-mkfont \ + --disable-grub-themes \ + --disable-grub-mount \ + " \ No newline at end of file

This two-step recipe takes the board firmware repo and overwrites its contents with the outputs obtained from the firmware recipes. SD card image is then created using mtools.

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- conf/machine/morello-bsp.conf | 9 +- .../board-firmware/board-firmware-image.bb | 82 +++++++++++++++++++ .../board-firmware/board-firmware_1.4.bb | 29 +++++++ 3 files changed, 117 insertions(+), 3 deletions(-) create mode 100644 recipes-bsp/board-firmware/board-firmware-image.bb create mode 100644 recipes-bsp/board-firmware/board-firmware_1.4.bb

diff --git a/conf/machine/morello-bsp.conf b/conf/machine/morello-bsp.conf index 9998fff..45b12fb 100644 --- a/conf/machine/morello-bsp.conf +++ b/conf/machine/morello-bsp.conf @@ -1,6 +1,9 @@ require conf/machine/include/morello-common.inc

-PREFERRED_VERSION_scp-firmware ?= "2.10%" -PREFERRED_VERSION_trusted-firmware-a ?= "2.7%" +PREFERRED_VERSION_scp-firmware = "2.10%" +PREFERRED_VERSION_trusted-firmware-a = "2.7%" +PREFERRED_VERSION_board-firmware = "1.4"

-TMPDIR = "${TOPDIR}/${TMPDIR_BSP}" \ No newline at end of file +TMPDIR = "${TOPDIR}/${TMPDIR_BSP}" + +TCLIBCAPPEND = "" \ No newline at end of file diff --git a/recipes-bsp/board-firmware/board-firmware-image.bb b/recipes-bsp/board-firmware/board-firmware-image.bb new file mode 100644 index 0000000..b872a3a --- /dev/null +++ b/recipes-bsp/board-firmware/board-firmware-image.bb @@ -0,0 +1,82 @@ +inherit deploy nopackages + +COMPATIBLE_MACHINE = "morello" +SUMMARY = "SDK Card Firmware Image " +DESCRIPTION = "Image containing all the firmwares and motherboard configuration files" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" +OUTPUTS_NAME = "board-firmware-sd-image" +SECTION = "firmware" + +BB_DONT_CACHE = "1" + +DEPENDS += "virtual/board-firmware virtual/scp-firmware virtual/trusted-firmware-a virtual/uefi virtual/grub-efi mtools-native fiptool-native" +PROVIDES = "virtual/board-firmware-image" + +MCP_BLOB_ID = "54464222-a4cf-4bf8-b1b6-cee7dade539e" + +FIP_OPTIONS = "\ + --tb-fw '${FIRMWARE_PATH}/bl2.bin' \ + --soc-fw '${FIRMWARE_PATH}/bl31.bin' \ + --nt-fw '${FIRMWARE_PATH}/uefi.bin' \ + --fw-config '${FIRMWARE_PATH}/morello_fw_config.dtb' \ + --tb-fw-config '${FIRMWARE_PATH}/morello_tb_fw_config.dtb' \ + --nt-fw-config '${FIRMWARE_PATH}/morello_nt_fw_config.dtb' \ + --trusted-key-cert '${FIRMWARE_PATH}/tfa_certs/trusted_key.crt' \ + --soc-fw-key-cert '${FIRMWARE_PATH}/tfa_certs/bl31_key.crt' \ + --nt-fw-key-cert '${FIRMWARE_PATH}/tfa_certs/bl33_key.crt' \ + --soc-fw-cert '${FIRMWARE_PATH}/tfa_certs/bl31.crt' \ + --nt-fw-cert '${FIRMWARE_PATH}/tfa_certs/bl33.crt' \ + --tb-fw-cert '${FIRMWARE_PATH}/tfa_certs/bl2.crt' \ + " + +FIRMWARE_PATH = "${RECIPE_SYSROOT}/firmware" +SYSROOT_SOFTWARE_PATH = "${RECIPE_SYSROOT}/board-firmware/SOFTWARE" + +do_configure[noexec] = "1" +do_compile[noexec] = "1" +do_install[depends] += "virtual/board-firmware:do_populate_sysroot" +do_install[depends] += "virtual/scp-firmware:do_populate_sysroot" +do_install[depends] += "virtual/uefi:do_populate_sysroot" +do_install[depends] += "virtual/trusted-firmware-a:do_populate_sysroot" + +do_install:prepend() { + + fiptool create \ + --scp-fw "${FIRMWARE_PATH}/scp_ramfw_soc.bin" \ + "${FIRMWARE_PATH}/scp_fw.bin" + + fiptool create \ + --blob uuid="${MCP_BLOB_ID}",file="${FIRMWARE_PATH}/mcp_ramfw_soc.bin" \ + "${FIRMWARE_PATH}/mcp_fw.bin" + + install -d "${FIRMWARE_PATH}/tfa_certs" + cert_create ${FIP_OPTIONS} -n --tfw-nvctr 0 --ntfw-nvctr 0 \ + --rot-key ${FIRMWARE_PATH}/arm_rotprivk_rsa.pem + + fiptool update ${FIP_OPTIONS} "${FIRMWARE_PATH}/fip.bin" +} + +do_install() { + + cp -rf ${FIRMWARE_PATH}/fip.bin ${SYSROOT_SOFTWARE_PATH}/fip.bin + cp -rf ${FIRMWARE_PATH}/scp_fw.bin ${SYSROOT_SOFTWARE_PATH}/scp_fw.bin + cp -rf ${FIRMWARE_PATH}/mcp_fw.bin ${SYSROOT_SOFTWARE_PATH}/mcp_fw.bin + + install -d ${D}/board-firmware/SOFTWARE + install -m 644 ${SYSROOT_SOFTWARE_PATH}/fip.bin ${D}/board-firmware/SOFTWARE/fip.bin + install -m 644 ${SYSROOT_SOFTWARE_PATH}/scp_fw.bin ${D}/board-firmware/SOFTWARE/scp_fw.bin + install -m 644 ${SYSROOT_SOFTWARE_PATH}/mcp_fw.bin ${D}/board-firmware/SOFTWARE/mcp_fw.bin + + dd if=/dev/zero of=${OUTPUTS_NAME}.img bs=512K count=100 + mformat -i ${OUTPUTS_NAME}.img :: + mcopy -i ${OUTPUTS_NAME}.img -s -Q -p -m ${RECIPE_SYSROOT}/board-firmware/* :: + + install -d ${D}/firmware/board-firmware-image + install -m 644 ${OUTPUTS_NAME}.img ${D}/firmware/board-firmware-image/${OUTPUTS_NAME}.img +} + +do_deploy() { + cp -rf ${D}/firmware/board-firmware-image/${OUTPUTS_NAME}.img ${DEPLOYDIR}/${OUTPUTS_NAME}.img +} +addtask deploy after do_install \ No newline at end of file diff --git a/recipes-bsp/board-firmware/board-firmware_1.4.bb b/recipes-bsp/board-firmware/board-firmware_1.4.bb new file mode 100644 index 0000000..502e643 --- /dev/null +++ b/recipes-bsp/board-firmware/board-firmware_1.4.bb @@ -0,0 +1,29 @@ + + +COMPATIBLE_MACHINE = "morello" +SUMMARY = "Board firmware for Morello" +DESCRIPTION = "The SD card image from ARM that contains non compile-able binaries." +HOMEPAGE = "https://git.morello-project.org/morello/board-firmware" +LICENSE = "STMicroelectronics&BSD-3 & BDS-2" +OUTPUTS_NAME = "board-firmware" +SECTION = "firmware" + +PROVIDES += "virtual/${OUTPUTS_NAME}" + +SRC_URI = "git://git.morello-project.org/morello/board-firmware;protocol=https;branch=${SRCBRANCH}" +SRCREV = "20e3e673f13e854109a069dd719f49e06336142d" + +SRCBRANCH = "morello/release-1.4" +LIC_FILES_CHKSUM = "file://LICENSES/MB/STM.TXT;md5=15054b089e974faf5fb98db442a7415a \ + file://LICENSES/LIB/sensor.txt;md5=7ba201f1f1e4959d3505d9c59c6cfdfa \ + " + +S = "${WORKDIR}/git" +FILES:${PN} += "/${OUTPUTS_NAME}" +FILES:${PN}-staticdev += "/${OUTPUTS_NAME}/LIB/sensor.a" +SYSROOT_DIRS += "/${OUTPUTS_NAME}" + +do_install() { + install -d "${D}/${OUTPUTS_NAME}" + cp -rf ${S}/* "${D}/${OUTPUTS_NAME}/" +} \ No newline at end of file

The morello musl libc appends the musl_git.bb recipe. The installation path and PROVIDES depend on the machine. The native libraries that go into clang resource folder are also covered. The build order is: musl-morello-native, musl-morello-libs-native, and musl-morello-target.

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- recipes-core/musl/files/compiler_rt.cmake | 5 ++ recipes-core/musl/musl-morello-1.5.inc | 4 + recipes-core/musl/musl-morello-a64-so.inc | 7 ++ recipes-core/musl/musl-morello-a64.inc | 7 ++ recipes-core/musl/musl-morello-c64-so.inc | 7 ++ recipes-core/musl/musl-morello-c64.inc | 7 ++ recipes-core/musl/musl-morello-common.inc | 65 ++++++++++++++++ recipes-core/musl/musl-morello-libs-native.bb | 74 +++++++++++++++++++ recipes-core/musl/musl-morello-native.bb | 36 +++++++++ recipes-core/musl/musl-morello-target.inc | 52 +++++++++++++ recipes-core/musl/musl_%.bbappend | 17 +++++ recipes-core/musl/override-glibc.inc | 4 + recipes-core/musl/override-musl.inc | 2 + 13 files changed, 287 insertions(+) create mode 100644 recipes-core/musl/files/compiler_rt.cmake create mode 100644 recipes-core/musl/musl-morello-1.5.inc create mode 100644 recipes-core/musl/musl-morello-a64-so.inc create mode 100644 recipes-core/musl/musl-morello-a64.inc create mode 100644 recipes-core/musl/musl-morello-c64-so.inc create mode 100644 recipes-core/musl/musl-morello-c64.inc create mode 100644 recipes-core/musl/musl-morello-common.inc create mode 100644 recipes-core/musl/musl-morello-libs-native.bb create mode 100644 recipes-core/musl/musl-morello-native.bb create mode 100644 recipes-core/musl/musl-morello-target.inc create mode 100644 recipes-core/musl/musl_%.bbappend create mode 100644 recipes-core/musl/override-glibc.inc create mode 100644 recipes-core/musl/override-musl.inc

diff --git a/recipes-core/musl/files/compiler_rt.cmake b/recipes-core/musl/files/compiler_rt.cmake new file mode 100644 index 0000000..24ea9e7 --- /dev/null +++ b/recipes-core/musl/files/compiler_rt.cmake @@ -0,0 +1,5 @@ +set(CMAKE_SYSTEM_NAME Linux) +set(CMAKE_SYSTEM_PROCESSOR aarch64) + +set(CMAKE_C_COMPILER_WORKS 1 CACHE INTERNAL "") +set(CMAKE_CXX_COMPILER_WORKS 1 CACHE INTERNAL "") \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-1.5.inc b/recipes-core/musl/musl-morello-1.5.inc new file mode 100644 index 0000000..750120d --- /dev/null +++ b/recipes-core/musl/musl-morello-1.5.inc @@ -0,0 +1,4 @@ +LIC_FILES_CHKSUM = "file://COPYRIGHT;md5=b03f1cc25363d094011f8f4fd8bcfb68" + +SRCBRANCH = "morello/master" +SRCTAG = "morello-release-1.5.0" \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-a64-so.inc b/recipes-core/musl/musl-morello-a64-so.inc new file mode 100644 index 0000000..1a294dd --- /dev/null +++ b/recipes-core/musl/musl-morello-a64-so.inc @@ -0,0 +1,7 @@ +PROVIDES += "virtual/${OUTPUTS_NAME}-a64 virtual/crypt-a64" + +do_install:append() { + install -d ${D}${nonarch_base_libdir} + ln -rs ${TARGET_INSTALL_DIR}${libdir}/libc.so ${D}${nonarch_base_libdir}/ld-musl-${MUSL_LDSO_ARCH}.so.1 + rm -f ${TARGET_INSTALL_DIR}${nonarch_base_libdir}/ld-musl-morello.so.1 +} \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-a64.inc b/recipes-core/musl/musl-morello-a64.inc new file mode 100644 index 0000000..7aa18a3 --- /dev/null +++ b/recipes-core/musl/musl-morello-a64.inc @@ -0,0 +1,7 @@ +require musl-morello-common.inc + +EXTRA_CONFIGUREOPTS = "--disable-morello" + +ARCH_TRIPLE = "${A64_ARCH_TRIPLE}" +LIB_TRIPLE = "${A64_LIB_TRIPLE}" +ARCH_FLAGS = "-march=armv8" \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-c64-so.inc b/recipes-core/musl/musl-morello-c64-so.inc new file mode 100644 index 0000000..b6c8c75 --- /dev/null +++ b/recipes-core/musl/musl-morello-c64-so.inc @@ -0,0 +1,7 @@ +PROVIDES += "virtual/${OUTPUTS_NAME}-c64 virtual/crypt-c64" + +do_install:append() { + install -d ${D}${nonarch_base_libdir} + ln -rs ${TARGET_INSTALL_DIR}${libdir}/libc.so ${D}${nonarch_base_libdir}/ld-musl-${MUSL_LDSO_ARCH}.so.1 + rm -f ${TARGET_INSTALL_DIR}${nonarch_base_libdir}/ld-musl-morello.so.1 +} \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-c64.inc b/recipes-core/musl/musl-morello-c64.inc new file mode 100644 index 0000000..761b9d2 --- /dev/null +++ b/recipes-core/musl/musl-morello-c64.inc @@ -0,0 +1,7 @@ +require musl-morello-common.inc + +EXTRA_CONFIGUREOPTS = "--enable-morello" + +ARCH_TRIPLE = "${C64_ARCH_TRIPLE}" +LIB_TRIPLE = "${C64_LIB_TRIPLE}" +ARCH_FLAGS = "-march=morello+c64 -mabi=purecap" \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-common.inc b/recipes-core/musl/musl-morello-common.inc new file mode 100644 index 0000000..f296e08 --- /dev/null +++ b/recipes-core/musl/musl-morello-common.inc @@ -0,0 +1,65 @@ +require musl-morello-${MORELLO_RELEASE_VERSION}.inc + +DESCRIPTION = "CHERI enabled musl libc" +OUTPUTS_NAME = "libc" +LICENSE = "MIT" + +FILESEXTRAPATHS:prepend := "${THISDIR}:" + +SUMMARY = "CHERI enabled musl libc" +SRC_URI = " \ + git://git.morello-project.org/morello/musl-libc;protocol=https;tag=${SRCTAG};branch=${SRCBRANCH} \ + file://files/compiler_rt.cmake \ +" + +SRCREV ="" + +PV = "git${SRCPV}" +S = "${WORKDIR}/git" +B = "${WORKDIR}/build" + +TARGET_INSTALL_DIR = "${D}${MUSL_INSTALL_DIR}" + +INHIBIT_SYSROOT_STRIP = "1" +INHIBIT_PACKAGE_STRIP = "1" +INHIBIT_PACKAGE_DEBUG_SPLIT = "1" + +CONFIGUREOPTS = " \ + --prefix=${prefix} \ + --exec-prefix=${exec_prefix} \ + --bindir=${bindir} \ + --libdir=${libdir} \ + --includedir=${includedir} \ + --syslibdir=${nonarch_base_libdir} \ + --target=${ARCH_TRIPLE} \ + --disable-libshim \ +" + +COMPILERRT_CMAKE = "-Wno-dev \ + -DCMAKE_TOOLCHAIN_FILE=compiler_rt.cmake \ + -DCMAKE_BUILD_TYPE=Release \ + -DLLVM_CONFIG_PATH='${LLVM_CONFIG}' \ + -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \ + -DCMAKE_SKIP_BUILD_RPATH=OFF \ + -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \ + -DLLVM_TARGETS_TO_BUILD='AArch64' \ + -DLLVM_ENABLE_ASSERTIONS=OFF \ + -DBUILD_SHARED_LIBS=ON \ + -DCOMPILER_RT_BUILD_BUILTINS=ON \ + -DCOMPILER_RT_BUILD_SANITIZERS=OFF \ + -DCOMPILER_RT_BUILD_XRAY=OFF \ + -DCOMPILER_RT_BUILD_LIBFUZZER=OFF \ + -DCOMPILER_RT_BUILD_PROFILE=OFF \ +" +do_configure() { + export CFLAGS="" + local config="${CONFIGUREOPTS}" + echo "Install dir ${TARGET_INSTALL_DIR} with ${TCLIBC} MACHINE_INC ${MACHINE_INC}" + config="${config} --target=${ARCH_TRIPLE} ${EXTRA_CONFIGUREOPTS} --disable-shared" + ${S}/configure ${config} +} + +do_compile() { + export CFLAGS="" + oe_runmake +} \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-libs-native.bb b/recipes-core/musl/musl-morello-libs-native.bb new file mode 100644 index 0000000..6318aa9 --- /dev/null +++ b/recipes-core/musl/musl-morello-libs-native.bb @@ -0,0 +1,74 @@ +inherit cmake llvm-morello-native native +require musl-morello-${MORELLO_ARCH}.inc + +DESCRIPTION = "Libraries that go into the clang resource folder, \ + search path for that folder is relative to clang directory itself." + +DEPENDS += "musl-morello-native" +PROVIDES = "virtual/musl-morello-libs-native" + +B_COMPILERRT = "${WORKDIR}/build_compiler_rt" +S_CRT = "${LLVM_SHARED_SOURCE}/compiler-rt/lib/crt" +S_COMPILER_RT = "${LLVM_SHARED_SOURCE}/compiler-rt" + +do_install[depends] += "llvm-morello-native:do_symlink" + +FILES:${PN} += "$(${CC} -print-resource-dir)/lib/${LIB_TRIPLE}" +INSANE_SKIP:${PN} += "$(${CC} -print-resource-dir)/lib/${LIB_TRIPLE}" + +BUILD_CC = "${LLVM_PATH}/clang" +BUILD_CXX = "${LLVM_PATH}/clang++" +BUILD_CPP = "${LLVM_PATH}/clang" +BUILD_CCLD = "${LLVM_PATH}/clang" +BUILD_RANLIB = "${LLVM_PATH}/llvm-ranlib" +BUILD_AR = "${LLVM_PATH}/llvm-ar" +BUILD_AS = "${LLVM_PATH}/llvm-as" +BUILD_NM = "${LLVM_PATH}/llvm-nm" +BUILD_OBJDUMP = "${LLVM_PATH}/llvm-objdump" +BUILD_OBJCOPY = "${LLVM_PATH}/llvm-objcopy" +BUILD_STRIP = "${LLVM_PATH}/llvm-strip" +BUILD_STRINGS = "${LLVM_PATH}/llvm-strings" +BUILD_READELF = "${LLVM_PATH}/llvm-readelf" +BUILD_LD = "${LLVM_PATH}/ld.lld" +BUILD_LTO = "-fuse-ld=lld" +BUILD_HOSTCC = "${LLVM_PATH}/clang" + + +do_install() { + + export CFLAGS="" + + local resourcedir=$(${CC} -print-resource-dir) + local destdir="${resourcedir}/lib/${LIB_TRIPLE}" + local builddir="${B_COMPILERRT}/${ARCH_TRIPLE}" + local sysroot="${STAGING_LIBDIR_NATIVE}/musl-morello-native/${ARCH_TRIPLE}" + local target="${LIB_TRIPLE}" + + install -d ${destdir} + mkdir -p ${builddir} + + local ccflags="--target=${target} ${ARCH_FLAGS} -nostdinc -isystem ${sysroot}/include" + ${CC} ${ccflags} -c ${S_CRT}/crtbegin.c -o ${destdir}/clang_rt.crtbegin.o + ${CC} ${ccflags} -c ${S_CRT}/crtend.c -o ${destdir}/clang_rt.crtend.o + + cp -f ${WORKDIR}/files/compiler_rt.cmake ${builddir}/compiler_rt.cmake + + local config="${COMPILERRT_CMAKE}" + config="${config} -DCOMPILER_RT_DEFAULT_TARGET_TRIPLE=${LIB_TRIPLE} \ + -DCMAKE_INSTALL_RPATH=$ORIGIN/../lib \ + -DCMAKE_TOOLCHAIN_FILE='${builddir}/compiler_rt.cmake' \ + " + cmake -S ${S_COMPILER_RT} -B ${builddir} ${config} -DCMAKE_C_FLAGS="-nostdinc -isystem ${sysroot}/include" -DCMAKE_C_COMPILER_TARGET="${LIB_TRIPLE} ${ARCH_FLAGS}" + + cd ${builddir} + make ${PARALLEL_MAKE} clang_rt.builtins-aarch64 + + install ${builddir}/lib/linux/libclang_rt.builtins-aarch64.a ${destdir}/libclang_rt.builtins.a + + install -d ${D}${libdir}/clang/${LLVM_VERSION}/lib/${LIB_TRIPLE} + local install_dir=${D}${libdir}/clang/${LLVM_VERSION}/lib/${LIB_TRIPLE} + + install ${destdir}/clang_rt.crtbegin.o ${install_dir}/clang_rt.crtbegin.o + install ${destdir}/clang_rt.crtend.o ${install_dir}/clang_rt.crtend.o + install ${destdir}/libclang_rt.builtins.a ${install_dir}/libclang_rt.builtins.a +} \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-native.bb b/recipes-core/musl/musl-morello-native.bb new file mode 100644 index 0000000..e7e6792 --- /dev/null +++ b/recipes-core/musl/musl-morello-native.bb @@ -0,0 +1,36 @@ +inherit llvm-morello-native native +require musl-morello-${MORELLO_ARCH}.inc + +DESCRIPTION = " That is right, we have a native libc sysroot that is needed as an intermediate step \ +to provide crt and compiler-rt that will be used by the cross compiler, this recipe exist to avoid having \ +a native recipe dependant on a target recipe... which is actually the case, but there you go. Note that the \ +libc sysroot is NOT actually native, it is just a trick." + +PROVIDES = "virtual/musl-morello-native" + +BUILD_CC = "${LLVM_PATH}/clang" +BUILD_CXX = "${LLVM_PATH}/clang++" +BUILD_CPP = "${LLVM_PATH}/clang" +BUILD_CCLD = "${LLVM_PATH}/clang" +BUILD_RANLIB = "${LLVM_PATH}/llvm-ranlib" +BUILD_AR = "${LLVM_PATH}/llvm-ar" +BUILD_AS = "${LLVM_PATH}/llvm-as" +BUILD_NM = "${LLVM_PATH}/llvm-nm" +BUILD_OBJDUMP = "${LLVM_PATH}/llvm-objdump" +BUILD_OBJCOPY = "${LLVM_PATH}/llvm-objcopy" +BUILD_STRIP = "${LLVM_PATH}/llvm-strip" +BUILD_STRINGS = "${LLVM_PATH}/llvm-strings" +BUILD_READELF = "${LLVM_PATH}/llvm-readelf" +BUILD_LD = "${LLVM_PATH}/ld.lld" +BUILD_LTO = "-fuse-ld=lld" +BUILD_HOSTCC = "${LLVM_PATH}/clang" + +FILES:${PN} += "${libdir}/${PN}/${ARCH_TRIPLE}" +INSTALL_DIR = "${D}/${ARCH_TRIPLE}" + +do_install() { + export CFLAGS="" + make install DESTDIR="${INSTALL_DIR}" + install -d ${D}${libdir}/${PN}/${ARCH_TRIPLE} + cp -rf ${INSTALL_DIR}${prefix}/* ${D}${libdir}/${PN}/${ARCH_TRIPLE} +} \ No newline at end of file diff --git a/recipes-core/musl/musl-morello-target.inc b/recipes-core/musl/musl-morello-target.inc new file mode 100644 index 0000000..0b804fc --- /dev/null +++ b/recipes-core/musl/musl-morello-target.inc @@ -0,0 +1,52 @@ +inherit llvm-morello-native + +COMPATIBLE_MACHINE = "morello" +SECTION = "libs" + +DEPENDS:append = " virtual/musl-morello-libs-native" + +MUSL_LDSO_ARCH = "aarch64_purecap" + +FILES:${PN} = "${MUSL_INSTALL_DIR}" +FILES:${PN} += "${MUSL_INSTALL_DIR}${datadir} ${MUSL_INSTALL_DIR}${bindir} ${MUSL_INSTALL_DIR}${libdir}" +FILES:${PN} += "${MUSL_INSTALL_DIR}${includedir} ${MUSL_INSTALL_DIR}${includedir}/sys \ + ${MUSL_INSTALL_DIR}${includedir}/arpa ${MUSL_INSTALL_DIR}${includedir}/bits \ + ${MUSL_INSTALL_DIR}${includedir}/net ${MUSL_INSTALL_DIR}${includedir}/netinet \ + ${MUSL_INSTALL_DIR}${includedir}/netpacket ${MUSL_INSTALL_DIR}${includedir}/arpa \ + ${MUSL_INSTALL_DIR}${includedir}/scsi ${MUSL_INSTALL_DIR}${includedir}/sys" + +FILES:${PN} += "${nonarch_base_libdir}/ld-musl-${MUSL_LDSO_ARCH}.so.1 ${sysconfdir}/ld-musl-${MUSL_LDSO_ARCH}.path" + +FILES:${PN}-staticdev = "${MUSL_INSTALL_DIR}${libdir}/libc.a" +FILES:${PN}-dev =+ "${MUSL_INSTALL_DIR}${libdir}/libcrypt.a ${MUSL_INSTALL_DIR}${libdir}/libdl.a ${MUSL_INSTALL_DIR}${libdir}/libm.a \ + ${MUSL_INSTALL_DIR}${libdir}/libpthread.a ${MUSL_INSTALL_DIR}${libdir}/libresolv.a \ + ${MUSL_INSTALL_DIR}${libdir}/librt.a ${MUSL_INSTALL_DIR}${libdir}/libutil.a ${MUSL_INSTALL_DIR}${libdir}/libxnet.a \ + " + +SYSROOT_DIRS += "${sysconfdir} ${MUSL_INSTALL_DIR}${includedir}" + +do_install() { + + echo "Installing into ${TARGET_INSTALL_DIR}" + + export CFLAGS="" + + install -d ${TARGET_INSTALL_DIR}${includedir} ${TARGET_INSTALL_DIR}${includedir}/sys ${TARGET_INSTALL_DIR}${includedir}/arpa \ + ${TARGET_INSTALL_DIR}${includedir}/bits ${TARGET_INSTALL_DIR}${includedir}/net ${TARGET_INSTALL_DIR}${includedir}/netinet \ + ${TARGET_INSTALL_DIR}${includedir}/netpacket ${TARGET_INSTALL_DIR}${includedir}/arpa ${TARGET_INSTALL_DIR}${includedir}/scsi \ + ${TARGET_INSTALL_DIR}${includedir}/sys + + local destdir="${TARGET_INSTALL_DIR}" + + local config="${CONFIGUREOPTS}" + config="${config} --target=${ARCH_TRIPLE} ${EXTRA_CONFIGUREOPTS}" + + ${S}/configure ${CONFIGUREOPTS} + oe_runmake + oe_runmake install DESTDIR="${destdir}" + + install -d ${TARGET_INSTALL_DIR}${sysconfdir} + + echo "${TARGET_INSTALL_DIR}${base_libdir}" > ${TARGET_INSTALL_DIR}${sysconfdir}/ld-musl-${MUSL_LDSO_ARCH}.path + echo "${TARGET_INSTALL_DIR}${libdir}" >> ${TARGET_INSTALL_DIR}${sysconfdir}/ld-musl-${MUSL_LDSO_ARCH}.path +} \ No newline at end of file diff --git a/recipes-core/musl/musl_%.bbappend b/recipes-core/musl/musl_%.bbappend new file mode 100644 index 0000000..cfe23e8 --- /dev/null +++ b/recipes-core/musl/musl_%.bbappend @@ -0,0 +1,17 @@ +require musl-morello-${MORELLO_ARCH}.inc musl-morello-${MORELLO_ARCH}-so.inc musl-morello-target.inc + +MACHINE_INC ?= "" +MACHINE_INC:morello-linux-glibc = "override-glibc.inc" +MACHINE_INC:morello-linux-musl = "override-musl.inc" + +require ${MACHINE_INC} + +DEPENDS:remove = "virtual/${TARGET_PREFIX}binutils \ + virtual/${TARGET_PREFIX}gcc \ + libgcc-initial \ + linux-libc-headers \ + bsd-headers \ + libssp-nonshared \ + " + +RDEPENDS:${PN}-dev:remove = "linux-libc-headers-dev bsd-headers-dev libssp-nonshared-staticdev" \ No newline at end of file diff --git a/recipes-core/musl/override-glibc.inc b/recipes-core/musl/override-glibc.inc new file mode 100644 index 0000000..9ccf9c2 --- /dev/null +++ b/recipes-core/musl/override-glibc.inc @@ -0,0 +1,4 @@ +PROVIDES:append = " virtual/musl-morello" +PROVIDES:remove = "virtual/libc virtual/libiconv virtual/libintl virtual/crypt" +RPROVIDES:${PN}-dev:remove = "libc-dev virtual-libc-dev" +RPROVIDES:${PN}:append = " musl-libc" \ No newline at end of file diff --git a/recipes-core/musl/override-musl.inc b/recipes-core/musl/override-musl.inc new file mode 100644 index 0000000..1a810e6 --- /dev/null +++ b/recipes-core/musl/override-musl.inc @@ -0,0 +1,2 @@ +PROVIDES:append = " virtual/musl-morello" +RPROVIDES:${PN}:append = " musl-libc" \ No newline at end of file

Add recipe for a purecap application and a class it must inherit from.

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- classes/pure-cap-application.bbclass | 35 ++ .../applications/files/Makefile | 30 ++ .../applications/files/pure-cap-app.c | 298 ++++++++++++++++++ .../applications/pure-cap-app.bb | 25 ++ 4 files changed, 388 insertions(+) create mode 100644 classes/pure-cap-application.bbclass create mode 100644 recipes-morello-apps/applications/files/Makefile create mode 100644 recipes-morello-apps/applications/files/pure-cap-app.c create mode 100644 recipes-morello-apps/applications/pure-cap-app.bb

diff --git a/classes/pure-cap-application.bbclass b/classes/pure-cap-application.bbclass new file mode 100644 index 0000000..78c01c9 --- /dev/null +++ b/classes/pure-cap-application.bbclass @@ -0,0 +1,35 @@ +OUTPUTS_NAME ?= "pure-cap-app-default-name" + +FILESEXTRAPATHS:prepend := "${THISDIR}:${THISDIR}/${PN}:" + +DEPENDS += "virtual/musl-morello" + +MUSL_HOME = "${STAGING_DIR_TARGET}${MUSL_INSTALL_DIR}" + +INHIBIT_SYSROOT_STRIP = "1" +INHIBIT_PACKAGE_STRIP = "1" +INHIBIT_PACKAGE_DEBUG_SPLIT = "1" + +S = "${WORKDIR}/src" + +EXTRA_OEMAKE = "\ + LLVM_PATH='${LLVM_PATH}' \ + NAME='${OUTPUTS_NAME}' \ + OUT='${S}' \ + SYSROOT_LIB='${MUSL_HOME}${libdir}' \ + SYSROOT_INC='${MUSL_HOME}${includedir}' \ + SYSROOT='${MUSL_HOME}' \ + " + +do_compile() { + cd ${S} + echo "Resource dir ${resourcedir}" + echo "Musl home ${MUSL_HOME}" + oe_runmake ${EXTRA_OEMAKE} +} + +do_install() { + install -d ${D}/${APP_DIR} ${D}${bindir} + install ${S}/${OUTPUTS_NAME} ${D}/${APP_DIR}/${OUTPUTS_NAME} + install ${S}/${OUTPUTS_NAME} ${D}${bindir} +} \ No newline at end of file diff --git a/recipes-morello-apps/applications/files/Makefile b/recipes-morello-apps/applications/files/Makefile new file mode 100644 index 0000000..a8464a3 --- /dev/null +++ b/recipes-morello-apps/applications/files/Makefile @@ -0,0 +1,30 @@ +NAME=$(OUTPUTS_NAME) +CC=$(LLVM_PATH)/clang + +TARGET=aarch64-linux-musl_purecap +ARCH=-march=morello+c64 -mabi=purecap +CLANG_RESOURCE_DIR=$(shell ${CC} -print-resource-dir) +CLANG_LIB=$(CLANG_RESOURCE_DIR)/lib/aarch64-unknown-linux-musl_purecap +COMPILER_INC=$(CLANG_RESOURCE_DIR)/include +OUT=$(S) + +CFLAGS=-Wno-gnu-alignof-expression \ + -Werror \ + -Wno-macro-redefined \ + -Werror=cheri \ + -Werror=cheri-inefficient \ + -Werror=cheri-pedantic \ + -Werror=cheri-pointer-conversion \ + -Werror=cheri-unimplemented-features + +all: + $(CC) -c -g -O0 -isystem $(SYSROOT_INC) -I$(COMPILER_INC) \ + $(ARCH) $(NAME).c -o $(OUT)/$(NAME).c.o \ + --target=$(TARGET) + $(CC) --target=$(TARGET) $(ARCH) -fuse-ld=lld -rtlib=compiler-rt --sysroot $(SYSROOT) \ + $(OUT)/$(NAME).c.o \ + -o $(OUT)/$(NAME) + +clean: + rm -f $(OUT)/$(NAME).c.o + rm -f $(OUT)/$(NAME) \ No newline at end of file diff --git a/recipes-morello-apps/applications/files/pure-cap-app.c b/recipes-morello-apps/applications/files/pure-cap-app.c new file mode 100644 index 0000000..0a9e62a --- /dev/null +++ b/recipes-morello-apps/applications/files/pure-cap-app.c @@ -0,0 +1,298 @@ +/** + * @author Pawel Zalewski Copyright (C) 2022 <The Good Penguin> + * @email pzalewski@thegoodpenguin.co.uk + * @create date 2022-07-11 16:13:49 + * @desc Simple Morello demonstration program aimed at Linux fs. + * + */ + +#include <stdio.h> +#include <stdbool.h> +#include <signal.h> +#include <string.h> +#include <stdlib.h> +#include <stdalign.h> +#include <stdint.h> + +#include <getopt.h> +#include <memory.h> + +#include <cheriintrin.h> + +static void usage(void); +static void subPointersToPointersTest(void); +static void subPointersToPointersTest2(void); +static void outOfBoundAccess(void); +static void functionPointersTest(void); +static void atomicAccess(void); + +static void sigactionSegfault(int signal, siginfo_t *si, void *args); +static void sigactionIllegal(int signal, siginfo_t *si, void *args); +static void sigactionAlingment(int signal, siginfo_t *si, void *args); + +static void printPointer(void *pointer); + +static void * cheri_perms_set(void * pointer, cheri_perms_t perm_new); + +typedef void (*functionPointer)(void); + +static const char shortOptions[] = "habcde"; + +static const struct option longOptions[] = { + {"help", 0, NULL, 'h'}, + {"subPointersToPointersTest", 0, NULL, 'a'}, + {"subPointersToPointersTest2", 0, NULL, 'b'}, + {"outOfBoundAccess", 0, NULL, 'c'}, + {"functionPointersTest", 0, NULL, 'd'}, + {"atomicAccess", 0, NULL, 'e'}, + {NULL, 0, NULL, 0}, +}; + +static void sigactionAlingment(int signal, siginfo_t *si, void *args) +{ + printf("Signal [%d] caught an alligment fault at address %p with code %d args: %p \n", signal, si->si_addr, si->si_code, args); + exit(0); +} + +static void sigactionSegfault(int signal, siginfo_t *si, void *args) +{ + printf("Signal [%d] caught a segfault at address %p with code %d args: %p \n", signal, si->si_addr, si->si_code, args); + exit(0); +} + +static void sigactionIllegal(int signal, siginfo_t *si, void *args) +{ + printf("Signal [%d] caught an illegal access at address %p with code %d args: %p \n", signal, si->si_addr, si->si_code, args); + exit(0); +} + +int main(int argc, char **argv) +{ + + struct sigaction sa; + + memset(&sa, 0, sizeof(struct sigaction)); + sigemptyset(&sa.sa_mask); + + sa.sa_sigaction = sigactionSegfault; + sa.sa_flags = SA_SIGINFO; + sigaction(SIGSEGV, &sa, NULL); + + memset(&sa, 0, sizeof(struct sigaction)); + sa.sa_sigaction = sigactionIllegal; + sa.sa_flags = SA_SIGINFO; + sigaction(SIGILL, &sa, NULL); + + memset(&sa, 0, sizeof(struct sigaction)); + sa.sa_sigaction = sigactionAlingment; + sa.sa_flags = SA_SIGINFO; + sigaction(SIGBUS, &sa, NULL); + + size_t sizeInt = sizeof(int64_t); + size_t sizePointer = sizeof(uint8_t *); + + printf("The size of int64 is %lu-byte/%lu-bit and pointers are %lu-byte/%lu-bit \r\n", sizeInt, sizeInt << 3, sizePointer, sizePointer << 3); + + int optionidx = 0; + int opt; + + while ((opt = getopt_long(argc, argv, shortOptions, longOptions, &optionidx)) != EOF) + { + switch (opt) + { + case 'h': + usage(); + return 0; + + case 'a': + subPointersToPointersTest(); + break; + + case 'b': + subPointersToPointersTest2(); + break; + + case 'c': + outOfBoundAccess(); + break; + + case 'd': + functionPointersTest(); + break; + + case 'e': + atomicAccess(); + break; + + default: + printf("Got: %c\r\n", opt); + usage(); + exit(1); + } + } + + return 0; +} + +/** + * @brief Prints the pointer meta-data + * + * @param pointer teh pointer + */ +static void printPointer(void *pointer) +{ + size_t addr = cheri_address_get(pointer); + size_t base = cheri_base_get(pointer); + size_t offset = cheri_offset_get(pointer); + size_t len = cheri_length_get(pointer); + size_t perm = cheri_perms_get(pointer); + bool tag = cheri_tag_get(pointer); + + printf("Capability size %lx align %lx addr %lX base %lX offset %lX length %lu permissions %lX tag %d \r\n", sizeof(pointer), alignof(pointer), addr, base, offset, len, perm, tag); + + cheri_perms_t permissions = cheri_perms_get(pointer); + + bool issealed = cheri_is_sealed(pointer); + bool hasload = (permissions & CHERI_PERM_LOAD ) == CHERI_PERM_LOAD; + bool hasstore = (permissions & CHERI_PERM_STORE ) == CHERI_PERM_STORE; + bool hasexec = (permissions & CHERI_PERM_EXECUTE ) == CHERI_PERM_EXECUTE; + bool hassys = (permissions & CHERI_PERM_SYSTEM_REGS ) == CHERI_PERM_SYSTEM_REGS; + bool hasseal = (permissions & CHERI_PERM_SEAL ) == CHERI_PERM_SEAL; + printf("Is sealed %d, load %d, store %d, execute %d, system %d, seal %d\r\n", issealed, hasload, hasstore, hasexec, hassys, hasseal); +} + +/** + * @brief This function tests how meta-data behaves in sub-sequent pointers. + * + */ + +static void subPointersToPointersTest(void) +{ + uint8_t array[21] = {42}; + + uint8_t *pArray10 = &array[10]; + uint8_t *pArray15 = pArray10 + 5; + + printPointer(array); + printPointer(pArray10); + printPointer(pArray15); +} + +/** + * @brief This function tests changing bounds of pointers. + * + */ +static void subPointersToPointersTest2(void) +{ + uint8_t array[21] = {42}; + + uint8_t *pArray10 = &array[10]; + uint8_t *pArray10Bounded = cheri_bounds_set(pArray10, 4); + + printPointer(array); + printPointer(pArray10); + printPointer(pArray10Bounded); + + uint8_t *pArray10UnBounded = cheri_bounds_set(pArray10Bounded, 5); + + printPointer(pArray10UnBounded); + + pArray10Bounded--; + + printf("Some value is %d \r\n", *pArray10Bounded); + printf("Some value is %d \r\n", *pArray10UnBounded); +} + +/** + * @brief This function checks if we can access OOB value. + * + */ + +int someValue = 0x8000; + +static void outOfBoundAccess(void) +{ + + int *pAddress = &someValue; + printPointer(pAddress); + + pAddress++; + printPointer(pAddress); + + printf("Some value is %d \r\n", *pAddress); +} + +/** + * @brief This function checks how function pointers behave. + * + */ + +static void functionPointersTest(void) +{ + + functionPointer fp = &outOfBoundAccess; + + printPointer(fp); + + int *pData = (int *)fp; + + printPointer(pData); + + cheri_perms_t perm = cheri_perms_get((void*)fp) | CHERI_PERM_STORE; + functionPointer fpE = cheri_perms_set(fp, perm); + + printPointer(fpE); + + fpE(); + + int *pAddress = &someValue; + functionPointer fpAddr = (functionPointer)pAddress; + + printPointer(pAddress); +} + +/** + * @brief This function checks if we can atomically apply capability to a data field. + * + */ +static void atomicAccess(void) +{ + uint8_t array[21] = {42}; + + uint8_t *pWriter = cheri_perms_set(&array[0], 0b010000000001000001); + uint8_t *pReader = cheri_perms_set(&array[0], 0b100000000001000001); + + printPointer(pWriter); + printPointer(pReader); + + pWriter[0] = 1; + + uint8_t value = pReader[0]; + + pReader[0] = 1; + + printf("Value is %u array is %u \r\n", value, array[0]); +} + +static void * cheri_perms_set(void * pointer, cheri_perms_t perm_new) { + + cheri_perms_t perm_old = cheri_perms_get(pointer); + return cheri_perms_clear(pointer, perm_old & ~perm_new); +} + +/** + * @brief Teh usage + * + */ +static void usage(void) +{ + printf( + "Usage: MorelloExample [OPTION]\n" + "\n" + "-h, --help help\n" + "-a subPointersToPointersTest\n" + "-b subPointersToPointersTest2\n" + "-c outOfBoundAccess \n" + "-d functionPointersTest \n" + "-e atomicAccess\n"); +} \ No newline at end of file diff --git a/recipes-morello-apps/applications/pure-cap-app.bb b/recipes-morello-apps/applications/pure-cap-app.bb new file mode 100644 index 0000000..a5b2e01 --- /dev/null +++ b/recipes-morello-apps/applications/pure-cap-app.bb @@ -0,0 +1,25 @@ +inherit pure-cap-application llvm-morello-native + +COMPATIBLE_MACHINE = "morello-linux" +SUMMARY = "Simple capability application" +DESCRIPTION = "Application used in the series of blogs found @ https://www.thegoodpenguin.co.uk/blog/tag/morello/" +OUTPUTS_NAME = "pure-cap-app" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" + +PROVIDES = "${OUTPUTS_NAME}" +RDEPENDS:${PN} = "musl-libc" +RPROVIDES:${PN} = "${OUTPUTS_NAME}" + +FILES:${PN} += "/${APP_DIR}" +SYSROOT_DIRS +="/${APP_DIR}" + +SRC_URI = " \ + file://files/pure-cap-app.c \ + file://files/Makefile \ + " + +do_configure () { + install -d ${S} + install ${WORKDIR}/files/* ${S} +} \ No newline at end of file

Add the llvm compiler that can run on the target.

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- recipes-devtools/llvm/llvm-morello_13.0.bb | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 recipes-devtools/llvm/llvm-morello_13.0.bb

diff --git a/recipes-devtools/llvm/llvm-morello_13.0.bb b/recipes-devtools/llvm/llvm-morello_13.0.bb new file mode 100644 index 0000000..dc10f9d --- /dev/null +++ b/recipes-devtools/llvm/llvm-morello_13.0.bb @@ -0,0 +1,61 @@ + +COMPATIBLE_MACHINE = "morello-linux" +DESCRIPTION = "The Morello LLVM Compiler Infrastructure for A64" +SUMMARY = "LLVM Morello" +HOMEPAGE = "https://git.morello-project.org/morello/llvm-project-releases" +LICENSE = "Apache-2.0-with-LLVM-exception" + +RPROVIDES:${PN} = "llvm-morello" +RDEPENDS:${PN} = "zlib" +SRCBRANCH = "morello/linux-aarch64-release-1.5" + +SRC_URI = "https://git.morello-project.org/morello/llvm-project-releases/-/archive/%24%..." + +SRC_URI[md5sum] = "bc5ba415eccea9b2280586aa6f74519d" +LIC_FILES_CHKSUM = "file://include/llvm/Support/LICENSE.TXT;md5=986c03435151a0086b8aaac964939cdd" + +S = "${WORKDIR}/llvm-project-releases-morello-linux-aarch64-release-1.5" + +FILES:${PN} += "${bindir}" +FILES:${PN} += "${libdir} ${libdir}/clang" +FILES:${PN} += "${includedir}" + +FILES:${PN}-staticdev += "${libdir}/*.a ${libdir}/clang/13.0.0/lib/linux/*.a \ + ${libdir}/clang/13.0.0/lib/aarch64-unknown-linux-musl_purecap/*.a \ + ${libdir}/clang/13.0.0/lib/aarch64-unknown-linux-gnu/*.a \ + " +FILES:${PN}-dev += "\ + ${datadir} \ + ${libdir}/cmake \ +" + +FILES:libclang = "\ + ${libdir}/libclang.so.${PV} \ +" + +FILES:lldb = "\ + ${bindir}/lldb \ +" + +FILES:lldb-server = "\ + ${bindir}/lldb-server \ +" + +FILES:liblldb = "\ + ${libdir}/liblldbIntelFeatures.so* \ + ${libdir}/liblldb.so* \ +" + +INSANE_SKIP_${PN} = "staticdev" +INHIBIT_SYSROOT_STRIP = "1" +INHIBIT_PACKAGE_STRIP = "1" +INHIBIT_PACKAGE_DEBUG_SPLIT = "1" + +do_install() { + install -d ${D}${prefix} ${D}${libdir} ${D}${bindir} ${D}${includedir} ${D}${datadir} ${D}${libexecdir} + cp -rf ${S}/lib/* ${D}${libdir} + cp -rf ${S}/bin/* ${D}${bindir} + cp -rf ${S}/include/* ${D}${includedir} + cp -rf ${S}/share/* ${D}${datadir} + cp -rf ${S}/libexec/* ${D}${libexecdir} +} \ No newline at end of file

Add recipes that will output a Linux image and a initramfs that contains the Morello busybox and the purecap app. The glibc version can take an arbitrary Yocto image as the rootfs. The rootfs hosts two loaders: glibc and musl both can have their own shared objects.

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- conf/machine/morello-linux-glibc.conf | 25 +++ conf/machine/morello-linux-musl.conf | 15 ++ .../images/morello-initramfs-glibc.bb | 50 ++++++ .../images/morello-initramfs-musl.bb | 53 +++++++ .../images/morello-linux-glibc/files/init.sh | 62 ++++++++ .../files/initramfs.list.template | 16 ++ .../images/morello-linux-image-glibc.bb | 145 ++++++++++++++++++ .../images/morello-linux-image-musl.bb | 96 ++++++++++++ .../images/morello-linux-musl/files/init.sh | 33 ++++ .../files/initramfs.list.template | 18 +++ 10 files changed, 513 insertions(+) create mode 100644 recipes-morello/images/morello-initramfs-glibc.bb create mode 100644 recipes-morello/images/morello-initramfs-musl.bb create mode 100644 recipes-morello/images/morello-linux-glibc/files/init.sh create mode 100644 recipes-morello/images/morello-linux-glibc/files/initramfs.list.template create mode 100644 recipes-morello/images/morello-linux-image-glibc.bb create mode 100644 recipes-morello/images/morello-linux-image-musl.bb create mode 100644 recipes-morello/images/morello-linux-musl/files/init.sh create mode 100644 recipes-morello/images/morello-linux-musl/files/initramfs.list.template

diff --git a/conf/machine/morello-linux-glibc.conf b/conf/machine/morello-linux-glibc.conf index 6ed824d..83e09ef 100644 --- a/conf/machine/morello-linux-glibc.conf +++ b/conf/machine/morello-linux-glibc.conf @@ -1,3 +1,28 @@ require conf/machine/include/morello-common.inc

MACHINEOVERRIDES =. "morello-linux-glibc:" + +PREFERRED_PROVIDER_virtual/kernel = "linux-morello-${MORELLO_RELEASE_VERSION}" +PREFFERED_PROVIDER_morello-linux-image = "morello-linux-image-glibc" +PREFFERED_PROVIDER_morello-initramfs = "morello-initramfs-glibc" + +BSP_GRUB_DIR ?= "${TOPDIR}/${TMPDIR_BSP}/deploy/images/morello-bsp/grub-efi" +BSP_DTB_DIR ?= "${TOPDIR}/${TMPDIR_BSP}/deploy/images/morello-bsp" + +TMPDIR = "${TOPDIR}/${TMPDIR_LINUX}" + +MUSL_INSTALL_DIR ?= "${libdir}/${GLOBAL_ARCH_TRIPLE}" + +IMAGE_BASENAME = "rootfs" +IMAGE_FSTYPES:append = " ext4" + +# The rootfs image that will go on a bootable drive +MORELLO_ROOTFS_IMAGE = "core-image-minimal" + +IMAGE_INSTALL:append = " linux-firmware-rtl8168" + +IMAGE_INSTALL:append = " musl-libc busybox-morello pure-cap-app llvm-morello gdbserver gdb llvm-morello-staticdev" + +DISTRO ?= "poky" + +SERIAL_CONSOLES = "115200;ttyAMA0" \ No newline at end of file diff --git a/conf/machine/morello-linux-musl.conf b/conf/machine/morello-linux-musl.conf index e22493d..c059775 100644 --- a/conf/machine/morello-linux-musl.conf +++ b/conf/machine/morello-linux-musl.conf @@ -1,3 +1,18 @@ require conf/machine/include/morello-common.inc

MACHINEOVERRIDES =. "morello-linux-musl:" + +TARGET_OS ?= "linux-musl" + +PREFERRED_PROVIDER_virtual/kernel = "linux-morello-${MORELLO_RELEASE_VERSION}" +PREFFERED_PROVIDER_morello-linux-image = "morello-linux-image-musl" +PREFFERED_PROVIDER_morello-initramfs = "morello-initramfs-musl" + +TCLIBC = "musl" + +BSP_GRUB_DIR ?= "${TOPDIR}/${TMPDIR_BSP}/deploy/images/morello-bsp/grub-efi" +BSP_DTB_DIR ?= "${TOPDIR}/${TMPDIR_BSP}/deploy/images/morello-bsp/trusted-firmware-a" + +TMPDIR = "${TOPDIR}/${TMPDIR_LINUX}" + +DISTRO = "" \ No newline at end of file diff --git a/recipes-morello/images/morello-initramfs-glibc.bb b/recipes-morello/images/morello-initramfs-glibc.bb new file mode 100644 index 0000000..707842e --- /dev/null +++ b/recipes-morello/images/morello-initramfs-glibc.bb @@ -0,0 +1,50 @@ +inherit deploy nopackages + +COMPATIBLE_MACHINE = "morello-linux-glibc" +SUMMARY = "Initramfs for busybox" +DESCRIPTION = "Initramfs for busybox, bypassing the Yocto way" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" +OUTPUTS_NAME = "morello-initramfs" + +DEPENDS += "virtual/morello-busybox gen-init-cpio-native" +PROVIDES = "${OUTPUTS_NAME}" + +BB_DONT_CACHE = "1" +INHIBIT_DEFAULT_DEPS = "1" + +FILESEXTRAPATHS:prepend := "${THISDIR}:" + +SRC_URI = "file://files/init.sh \ + file://files/initramfs.list.template \ + " +do_configure[noexec] = "1" +do_compile[noexec] = "1" +do_deploy[depends] = "virtual/morello-busybox:do_populate_sysroot" + + +do_install() { + + local sysroot_prefix="recipe-sysroot" + + sed -e "s@%FILES%@/files@" \ + "${WORKDIR}/files/initramfs.list.template" > "${WORKDIR}/files/initramfs.list.tmp1" + + sed -e "s@%BUSYBOX%@/${sysroot_prefix}/busybox@" \ + "${WORKDIR}/files/initramfs.list.tmp1" > "${WORKDIR}/files/initramfs.list" + + install -d ${D}/${OUTPUTS_NAME} + + rm -f ${D}/${OUTPUTS_NAME}/initramfs + + { + env -C ${WORKDIR} ${STAGING_BINDIR_NATIVE}/gen_init_cpio "${WORKDIR}/files/initramfs.list" + } > ${D}/${OUTPUTS_NAME}/initramfs + +} + +do_deploy() { + install -d ${DEPLOYDIR}/${OUTPUTS_NAME} + install ${D}/${OUTPUTS_NAME}/initramfs ${DEPLOYDIR}/${OUTPUTS_NAME}/initramfs +} +addtask deploy after do_install \ No newline at end of file diff --git a/recipes-morello/images/morello-initramfs-musl.bb b/recipes-morello/images/morello-initramfs-musl.bb new file mode 100644 index 0000000..06cce37 --- /dev/null +++ b/recipes-morello/images/morello-initramfs-musl.bb @@ -0,0 +1,53 @@ +inherit deploy nopackages + +COMPATIBLE_MACHINE = "morello-linux-musl" +SUMMARY = "Initramfs for busybox" +DESCRIPTION = "Initramfs for busybox, bypassing the Yocto way" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" +OUTPUTS_NAME = "morello-initramfs" + +DEPENDS += "virtual/morello-busybox gen-init-cpio-native pure-cap-app" +PROVIDES = "${OUTPUTS_NAME}" + +BB_DONT_CACHE = "1" +INHIBIT_DEFAULT_DEPS = "1" + +FILESEXTRAPATHS:prepend := "${THISDIR}:" + +SRC_URI = "file://files/init.sh \ + file://files/initramfs.list.template \ + " +do_configure[noexec] = "1" +do_compile[noexec] = "1" +do_deploy[depends] = "virtual/morello-busybox:do_populate_sysroot" + + +do_install() { + + local sysroot_prefix="recipe-sysroot" + + sed -e "s@%FILES%@/files@" \ + "${WORKDIR}/files/initramfs.list.template" > "${WORKDIR}/files/initramfs.list.tmp1" + + sed -e "s@%BUSYBOX%@/${sysroot_prefix}/busybox@" \ + "${WORKDIR}/files/initramfs.list.tmp1" > "${WORKDIR}/files/initramfs.list.tmp2" + + sed -e "s@%APP_DIR%@/${APP_DIR}@" \ + "${WORKDIR}/files/initramfs.list.tmp2" > "${WORKDIR}/files/initramfs.list" + + install -d ${D}/${OUTPUTS_NAME} + + rm -f ${D}/${OUTPUTS_NAME}/initramfs + + { + env -C ${WORKDIR} ${STAGING_BINDIR_NATIVE}/gen_init_cpio "${WORKDIR}/files/initramfs.list" + env -C "${STAGING_DIR_TARGET}/" find . -not -path "./sysroot-providers*" -print0 | env -C "${STAGING_DIR_TARGET}/" cpio --null --owner +0:+0 --create --format=newc + } > ${D}/${OUTPUTS_NAME}/initramfs +} + +do_deploy() { + install -d ${DEPLOYDIR}/${OUTPUTS_NAME} + install ${D}/${OUTPUTS_NAME}/initramfs ${DEPLOYDIR}/${OUTPUTS_NAME}/initramfs +} +addtask deploy after do_install \ No newline at end of file diff --git a/recipes-morello/images/morello-linux-glibc/files/init.sh b/recipes-morello/images/morello-linux-glibc/files/init.sh new file mode 100644 index 0000000..d98f607 --- /dev/null +++ b/recipes-morello/images/morello-linux-glibc/files/init.sh @@ -0,0 +1,62 @@ +#!/bin/busybox sh + +mount() { + /bin/busybox mount "$@" +} + +umount() { + /bin/busybox umount "$@" +} + +grep() { + /bin/busybox grep "$@" +} + +cp() { + /bin/busybox cp "$@" +} + +mkdir() { + /bin/busybox mkdir "$@" +} + +switch_root () { + /bin/busybox switch_root "$@" +} + +sed () { + /bin/busybox sed "$@" +} + +echo "Running init script" + +mount -t proc proc /proc +grep -qE $'\t'"devtmpfs$" /proc/filesystems && mount -t devtmpfs dev /dev +mount -t sysfs sysfs /sys + +echo "Installing busybox..." + +/bin/busybox --install -s + +! grep -qE $'\t'"devtmpfs$" /proc/filesystems && mdev -s + +ROOT="/newroot" + +PARTUUID=$(cat proc/cmdline | sed 's/ /\n/g' | sed -n 's/^root=PARTUUID=*//p') + +DEVID=$(blkid | sed -n "s/UUID="$PARTUUID" TYPE="ext4"*//p" | sed 's/://') + +echo "Mounting ${DEVID} rootfs with PARTUUID: ${PARTUUID}" + +mount ${DEVID} ${ROOT} + +ulimit -c unlimited + +cd ${ROOT} +exec switch_root . /sbin/init </dev/ttyAMA0 >dev/ttyAMA0 2>&1 + +echo "/bin/sh as PID 1!" +echo "init.sh" +exec setsid cttyhack sh +echo setsid ctty hack failed so "exec /bin/sh" fallback will be used +exec /bin/sh \ No newline at end of file diff --git a/recipes-morello/images/morello-linux-glibc/files/initramfs.list.template b/recipes-morello/images/morello-linux-glibc/files/initramfs.list.template new file mode 100644 index 0000000..da55738 --- /dev/null +++ b/recipes-morello/images/morello-linux-glibc/files/initramfs.list.template @@ -0,0 +1,16 @@ +dir /bin 755 0 0 +dir /include 755 0 0 +dir /lib 755 0 0 +dir /share 755 0 0 +dir /dev 755 0 0 +dir /proc 755 0 0 +dir /sbin 755 0 0 +dir /sys 755 0 0 +dir /newroot 755 0 0 +dir /usr 755 0 0 +dir /usr/lib 755 0 0 +dir /usr/bin 755 0 0 +dir /etc 755 0 0 + +file /bin/busybox .%BUSYBOX%/busybox 755 0 0 +file /init .%FILES%/init.sh 755 0 0 \ No newline at end of file diff --git a/recipes-morello/images/morello-linux-image-glibc.bb b/recipes-morello/images/morello-linux-image-glibc.bb new file mode 100644 index 0000000..135ce9a --- /dev/null +++ b/recipes-morello/images/morello-linux-image-glibc.bb @@ -0,0 +1,145 @@ +inherit deploy nopackages + +COMPATIBLE_MACHINE = "morello-linux-glibc" +SUMMARY = "Bootable Morello Linux Image" +DESCRIPTION = "Image that goes on a bootable device, can be DD'ed onto a USB stick" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" +OUTPUTS_NAME = "morello-linux-image" + +INHIBIT_DEFAULT_DEPS = "1" + +DEPENDS += "virtual/kernel morello-initramfs mtools-native e2fsprogs-native coreutils-native bc-native util-linux-native" +PROVIDES = "${OUTPUTS_NAME}" + +ESP_SIZE = "100" +BOOT_SECTORS = "204800" + +LBA = "512" +PART_START_ALIGNMENT = "2048" + +ESP_IMAGE = "${OUTPUTS_NAME}-esp" + +ROOTFS = "${DEPLOY_DIR}/images/morello-linux-glibc/rootfs-morello-linux-glibc.ext4" + +do_compile[noexec] = "1" +do_configure[depends] += "${MORELLO_ROOTFS_IMAGE}:do_image_complete morello-initramfs:do_deploy" +do_configure[mcdepends] += "mc:${BB_CURRENT_MC}:morello-firmware:board-firmware-image:do_deploy" + +def get_next_part_start (d): + next_image_start = int(d.getVar('BOOT_SECTORS')) + int(d.getVar('PART_START_ALIGNMENT')) + int(d.getVar('PART_START_ALIGNMENT')) - 1 + next_image_start = next_image_start & ~(int(d.getVar('PART_START_ALIGNMENT')) -1) + return next_image_start + +mult() { + local ret=$(echo "${1} * ${2}" | bc) + echo ${ret} +} + +add() { + local ret=$(echo "${1} + ${2}" | bc) + echo ${ret} +} + +div() { + local ret=$(echo "${1} / ${2}" | bc) + echo ${ret} +} + +get_size() { + local link=$(readlink -f ${1}) + local size=$(stat --dereference --format="%s" ${link}) + local ret=${size% *} + echo ${ret} +} + +add_to_image() { + mcopy -i ${1} -m -D overwrite ${2} ::${3} +} + +get_uuid() { + local part="$(blkid ${1})" + local tmp=${part#*"} + local uuid=$(echo $tmp | head -c 36) + echo ${uuid} +} + +create_gpt() { + + local esp_type="C12A7328-F81F-11D2-BA4B-00A0C93EC93B" + local linux_type="0FC63DAF-8483-4772-8E79-3D69D8477DE4" + + local part_start_esp=${PART_START_ALIGNMENT} + local part_start_linux="${@get_next_part_start(d)}" + + local size=$(get_size ${ROOTFS}) + local tmp=$(add ${size} ${LBA}) + + local rootfs_sectors=$(div ${tmp} ${LBA}) + local rootfs_uuid=$(get_uuid ${ROOTFS}) + + echo "Sectors $rootfs_sectors ${BOOT_SECTORS}" + + { + echo "label: gpt" + echo "start=${part_start_esp}, size=${BOOT_SECTORS}, name=ESP, type=${esp_type}" + echo "start=${part_start_linux}, size=${rootfs_sectors}, name=root, type=${linux_type}, uuid=${rootfs_uuid}" + } | sfdisk -q "${1}" + + dd if="${2}" of="${1}" seek=$(mult ${part_start_esp} ${LBA}) bs=8M conv=notrunc,sparse oflag=seek_bytes status=progress + dd if="${3}" of="${1}" seek=$(mult ${part_start_linux} ${LBA}) bs=8M conv=notrunc,sparse oflag=seek_bytes status=progress +} + +do_configure() { + local grub="${BSP_GRUB_DIR}/grub-config.cfg" + local uuid=$(get_uuid ${ROOTFS}) + echo ${uuid} + rm -f ${BSP_GRUB_DIR}/grub-config.cfg.processed + sed -e "s@%UUID%@${uuid}@" \ + "${BSP_GRUB_DIR}/grub-config.cfg" > "${BSP_GRUB_DIR}/grub-config.cfg.processed" +} + +do_install() { + + local part0="${BSP_GRUB_DIR}/grub-efi-bootaa64.efi" + local part1="${BSP_GRUB_DIR}/grub-config.cfg.processed" + local part2="${BSP_DTB_DIR}/morello-soc.dtb" + local part3="${DEPLOY_DIR}/images/morello-linux-glibc/Image" + local part4="${DEPLOY_DIR}/images/morello-linux-glibc/morello-initramfs/initramfs" + + rm -f ${ESP_IMAGE}.img + + # create the ESP + dd if=/dev/zero of=${ESP_IMAGE}.img bs=1024K count=${ESP_SIZE} + mformat -i ${ESP_IMAGE}.img -v ESP :: + + mmd -i ${ESP_IMAGE}.img ::/EFI + mmd -i ${ESP_IMAGE}.img ::/EFI/BOOT + + add_to_image ${ESP_IMAGE}.img ${part0} /EFI/BOOT/BOOTAA64.EFI + add_to_image ${ESP_IMAGE}.img ${part1} /EFI/BOOT/grub.cfg + add_to_image ${ESP_IMAGE}.img ${part2} /morello.dtb + add_to_image ${ESP_IMAGE}.img ${part3} /Image + add_to_image ${ESP_IMAGE}.img ${part4} /initramfs + + local size=$(get_size ${ROOTFS}) + + local rootfs_size=$(div ${size} 1048576) + local total_size=$(add ${ESP_SIZE} ${rootfs_size}) + + : > ${OUTPUTS_NAME}.img + truncate --size="$(add ${total_size} 50)M" ${OUTPUTS_NAME}.img + + create_gpt ${OUTPUTS_NAME}.img ${ESP_IMAGE}.img ${ROOTFS} ${size} + + install ${OUTPUTS_NAME}.img ${D}/${OUTPUTS_NAME}.img + install ${ESP_IMAGE}.img ${D}/${ESP_IMAGE}.img +} + +do_deploy() { + install -d ${DEPLOYDIR}/ESP + install ${D}/${OUTPUTS_NAME}.img ${DEPLOYDIR}/${OUTPUTS_NAME}-${MORELLO_ARCH}-${TCLIBC}.img + install ${D}/${ESP_IMAGE}.img ${DEPLOYDIR}/ESP/${ESP_IMAGE}.img + +} +addtask deploy after do_install \ No newline at end of file diff --git a/recipes-morello/images/morello-linux-image-musl.bb b/recipes-morello/images/morello-linux-image-musl.bb new file mode 100644 index 0000000..7b5e6eb --- /dev/null +++ b/recipes-morello/images/morello-linux-image-musl.bb @@ -0,0 +1,96 @@ +inherit deploy nopackages + +COMPATIBLE_MACHINE = "morello-linux-musl" +SUMMARY = "Bootable Morello Linux Image" +DESCRIPTION = "Image that goes on a bootable device, can be DD'ed onto a USB stick" +LICENSE = "MIT" +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302" +OUTPUTS_NAME = "morello-linux-image" + +INHIBIT_DEFAULT_DEPS = "1" + +DEPENDS += "virtual/kernel morello-initramfs mtools-native e2fsprogs-native coreutils-native bc-native util-linux-native" +PROVIDES = "${OUTPUTS_NAME}" + +IMAGE_SIZE = "100" + +IMAGE_SECTORS = "204800" + +LBA = "512" +PART_START_ALIGNMENT = "2048" + +ESP_IMAGE = "${OUTPUTS_NAME}-esp" + +do_configure[noexec] = "1" +do_compile[noexec] = "1" +do_install[mcdepends] = "mc:${BB_CURRENT_MC}:morello-firmware:board-firmware-image:do_deploy" + +def get_next_part_start (d): + next_image_start = int(d.getVar('IMAGE_SECTORS')) + int(d.getVar('PART_START_ALIGNMENT')) + int(d.getVar('PART_START_ALIGNMENT')) - 1 + next_image_start = next_image_start & ~(int(d.getVar('PART_START_ALIGNMENT')) -1) + return next_image_start + +add_to_image() { + mcopy -i ${1} -m -D overwrite ${2} ::${3} +} + +mult() { + local ret=$(echo "${1} * ${2}" | bc) + echo ${ret} +} + +create_gpt() { + + local esp_type="C12A7328-F81F-11D2-BA4B-00A0C93EC93B" + local linux_type="0FC63DAF-8483-4772-8E79-3D69D8477DE4" + + local part_start_esp=${PART_START_ALIGNMENT} + local part_start_linux="${@get_next_part_start(d)}" + + { + echo "label: gpt" + echo "start=${part_start_esp}, size=${IMAGE_SECTORS}, name=ESP, type=${esp_type}" + echo "start=${part_start_linux}, size=${IMAGE_SECTORS}, name=root, type=${linux_type}" + } | sfdisk -q "${1}" + + dd if="${2}" of="${1}" seek=$(mult ${part_start_esp} ${LBA}) bs=8M conv=notrunc,sparse oflag=seek_bytes status=progress + dd if="${3}" of="${1}" seek=$(mult ${part_start_linux} ${LBA}) bs=8M conv=notrunc,sparse oflag=seek_bytes status=progress +} + +do_install() { + + local part0="${BSP_GRUB_DIR}/grub-efi-bootaa64.efi" + local part1="${BSP_GRUB_DIR}/grub-config.cfg" + local part2="${BSP_DTB_DIR}/morello-soc.dtb" + local part3="${DEPLOY_DIR}/images/morello-linux-musl/Image" + local part4="${DEPLOY_DIR}/images/morello-linux-musl/morello-initramfs/initramfs" + + # create empty ext4 rootfs + : > ${D}/root.img + truncate --size="${IMAGE_SIZE}M" ${D}/root.img + mkfs.ext4 ${D}/root.img + + # create the ESP + dd if=/dev/zero of=${ESP_IMAGE}.img bs=1024K count=${IMAGE_SIZE} + mformat -i ${ESP_IMAGE}.img -v ESP :: + + mmd -i ${ESP_IMAGE}.img ::/EFI + mmd -i ${ESP_IMAGE}.img ::/EFI/BOOT + + add_to_image ${ESP_IMAGE}.img ${part0} /EFI/BOOT/BOOTAA64.EFI + add_to_image ${ESP_IMAGE}.img ${part1} /EFI/BOOT/grub.cfg + add_to_image ${ESP_IMAGE}.img ${part2} /morello.dtb + add_to_image ${ESP_IMAGE}.img ${part3} /Image + add_to_image ${ESP_IMAGE}.img ${part4} /initramfs + + : > ${OUTPUTS_NAME}.img + truncate --size="$(mult ${IMAGE_SIZE} 3)M" ${OUTPUTS_NAME}.img + + create_gpt ${OUTPUTS_NAME}.img ${ESP_IMAGE}.img /home/pawel/Code/ArmMorello/linux/output/root.img + install ${OUTPUTS_NAME}.img ${D}/${OUTPUTS_NAME}.img +} + +do_deploy() { + install ${D}/${OUTPUTS_NAME}.img ${DEPLOYDIR}/${OUTPUTS_NAME}-${MORELLO_ARCH}-${TCLIBC}.img +} +addtask deploy after do_install \ No newline at end of file diff --git a/recipes-morello/images/morello-linux-musl/files/init.sh b/recipes-morello/images/morello-linux-musl/files/init.sh new file mode 100644 index 0000000..7c1aa8d --- /dev/null +++ b/recipes-morello/images/morello-linux-musl/files/init.sh @@ -0,0 +1,33 @@ +#!/bin/busybox sh + +# Copyright (c) 2021 Arm Limited. All rights reserved. +# +# SPDX-License-Identifier: BSD-3-Clause + +mount() { + /bin/busybox mount "$@" +} + +grep() { + /bin/busybox grep "$@" +} + +echo "Running init script" + +mount -t proc proc /proc +grep -qE $'\t'"devtmpfs$" /proc/filesystems && mount -t devtmpfs dev /dev +mount -t sysfs sysfs /sys + +echo "Installing busybox" + +/bin/busybox --install -s + +! grep -qE $'\t'"devtmpfs$" /proc/filesystems && mdev -s + +ulimit -c unlimited + +echo "/bin/sh as PID 1!" +echo "init.sh" +exec setsid cttyhack sh +echo setsid ctty hack failed so "exec /bin/sh" fallback will be used +exec /bin/sh diff --git a/recipes-morello/images/morello-linux-musl/files/initramfs.list.template b/recipes-morello/images/morello-linux-musl/files/initramfs.list.template new file mode 100644 index 0000000..3da25be --- /dev/null +++ b/recipes-morello/images/morello-linux-musl/files/initramfs.list.template @@ -0,0 +1,18 @@ +dir /bin 755 0 0 +dir /include 755 0 0 +dir /lib 755 0 0 +dir /share 755 0 0 +dir /dev 755 0 0 +dir /proc 755 0 0 +dir /sbin 755 0 0 +dir /sys 755 0 0 +dir /newroot 755 0 0 +dir /usr 755 0 0 +dir /usr/lib 755 0 0 +dir /usr/bin 755 0 0 +dir /etc 755 0 0 + +dir /%APP_DIR% 755 0 0 + +file /bin/busybox .%BUSYBOX%/busybox 755 0 0 +file /init .%FILES%/init.sh 755 0 0 \ No newline at end of file

Add README.md with references and instructions of usage.

Signed-off-by: Pawel Zalewski pzalewski@thegoodpenguin.co.uk Reviewed-by: Andrew Murray amurray@thegoodpenguin.co.uk --- README.md | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 README.md

diff --git a/README.md b/README.md new file mode 100644 index 0000000..28f1ea2 --- /dev/null +++ b/README.md @@ -0,0 +1,73 @@ +meta-morello +============== + +Meta-morello provides the layer required to build the firmware that lives on the SD card and a Morello enabled +Linux kernel for the Morello System Development Platform. + +-Use the provided kas scripts to get all of the dependencies. +-Read on how to get and use kas here [1] + +Booting the hardware +-------------------- + +For information on how to boot the hardware and how the hardware is booting see [2] and [3]. + +Machines +-------- + +The machines have been split into: +- morello-bsp for the SD card +- morello-linux-musl for the Linux image with musl being the only libc +- morello-linux-glibc for the Linux image with an arbitrary Yocto image as the rootfs, there are two system loaders: + musl for capability aware applications, glibc for all of the rest + +Building images +-------------------- + +kas build ./kas/morello-linux-glibc.yml + +or + +kas build ./kas/morello-linux-musl.yml + +Images +------ + +The outputs can be found under build/temp/deploy/images: +- board-firmware-sd-image.img goes on the SD card via DD +- morello-linux-image-...img goes on the USB via DD + +Linux and musl-libc +------------------- +The linux kernel and musl-libc are locked in sync so that the release tags from upstream always match. + + +Known limitations +----------------- + +- the current state of this layer is meant to be just a starting point and foundation for further development, the main aim was to have working Linux images ASAP for the community, do not expect elegant Yocto solutions yet +- the rtl_nic driver is missing from the musl image + +Adding new recipes +------------------ + +Follow the coding style found in other layers, the aim here is to keep them consistent where possible +and very easy to read. Follow the order found in the "headers" of each recipe and in general. + +.bb recipes that come from Morello gitlab and are Morello "edits"" of upstream inherit the name Morello in the recipe: package-name-morello +.bbappends do not need to do this even if they come from Morello gitlab as they would only change SRC_URI + +Whether to append or start a new recipe is up to the designer, whatever is the easiest. + + +Mailing list +------------ + +https://op-lists.linaro.org/mailman3/lists/linux-morello-distros.op-lists.li... + +References +---------- + +[1] https://kas.readthedocs.io/en/latest/ \ +[2] https://developer.arm.com/documentation/den0132/0100/Setting-up-the-Morello-... \ +[3] https://developer.arm.com/documentation/102278/0001/?lang=en