6490a11018
When a armv8 target is used in 32bits mode, xenomai fail to detect the
ARM architecture and abord the build. (__ARM_ARCH_7A__ is not defined
for armv8 cpus).
There are no autobuilder failures for this issue since cobalt is never
selected, but the following defconfig:
BR2_arm=y
BR2_cortex_a53=y
BR2_ARM_FPU_NEON_VFPV4=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_PACKAGE_XENOMAI=y
BR2_PACKAGE_XENOMAI_COBALT=y
This was initialy reproduced using the raspberrypi3_defconfig with
Xenomai package with cobalt selected.
In order to use Xenomai on raspberrypi3 in 32 bits mode, one has to
select BR2_cortex_a7 instead of BR2_cortex_a53 (see a13a388dd4).
See:
https://gitlab.denx.de/Xenomai/xenomai/-/blob/v3.1/lib/cobalt/arch/arm/include/asm/xenomai/features.h#L52
Signed-off-by: Romain Naour <romain.naour@gmail.com>
[yann.morin.1998@free.fr:
- switch to independent conditional 'default y'
- slightly reword the commit log
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
220 lines
6.4 KiB
Plaintext
220 lines
6.4 KiB
Plaintext
config BR2_PACKAGE_XENOMAI_COBALT_ARCH_SUPPORTS
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bool
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default y if BR2_i386
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default y if BR2_x86_64
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default y if BR2_powerpc
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default y if BR2_arm && !BR2_ARM_CPU_ARMV7M && !BR2_ARM_CPU_ARMV8A
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comment "xenomai needs a glibc or uClibc toolchain w/ threads"
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depends on BR2_USE_MMU
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depends on BR2_TOOLCHAIN_HAS_SYNC_4
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depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_TOOLCHAIN_USES_MUSL
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config BR2_PACKAGE_XENOMAI
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bool "Xenomai Userspace"
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depends on BR2_USE_MMU
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depends on BR2_TOOLCHAIN_HAS_SYNC_4
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depends on BR2_TOOLCHAIN_HAS_THREADS
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# uses <error.h>, __WORDSIZE and bits/local_lim.h
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depends on !BR2_TOOLCHAIN_USES_MUSL
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help
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Real-Time Framework for Linux
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http://www.xenomai.org
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Xenomai is split in two parts: a kernel part and an
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userspace part.
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This package contains the userspace part, which consists
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mainly in libraries to write userspace real-time programs
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that interact with the in-kernel Xenomai real-time core.
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For those libraries to work, you need a Xenomai-enabled
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kernel. This is possible in two ways:
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- if you compile your kernel with Buildroot, you need to go
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to Linux Kernel -> Linux Kernel Extensions to enable the
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Xenomai extension.
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- if you compile your kernel outside of Buildroot, you need
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to make sure that it is Xenomai-enabled.
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Finally, if you are using a static /dev, make sure to
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uncomment the Xenomai entries listed in
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target/generic/device_table_dev.txt.
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if BR2_PACKAGE_XENOMAI
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choice
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bool "Xenomai version"
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help
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Make sure that the selected version has a patch for your
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selected Linux kernel. If it does not, download and select a
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patch manually with BR2_LINUX_KERNEL_EXT_XENOMAI_ADEOS_PATCH,
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in the Linux Kernel -> Linux Kernel Extensions menu.
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config BR2_PACKAGE_XENOMAI_LATEST_VERSION
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bool "Latest version (3.0.10)"
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config BR2_PACKAGE_XENOMAI_CUSTOM_VERSION
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bool "Custom version"
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config BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL
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bool "Custom tarball"
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config BR2_PACKAGE_XENOMAI_CUSTOM_GIT
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bool "Custom Git repository"
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endchoice
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config BR2_PACKAGE_XENOMAI_REPOSITORY
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string "URL of custom repository"
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default "https://gitlab.denx.de/Xenomai/xenomai.git"
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depends on BR2_PACKAGE_XENOMAI_CUSTOM_GIT
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config BR2_PACKAGE_XENOMAI_VERSION
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string "Custom Xenomai version" if \
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!BR2_PACKAGE_XENOMAI_LATEST_VERSION && \
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!BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL
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default "3.0.10" if BR2_PACKAGE_XENOMAI_LATEST_VERSION
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default "custom" if BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL
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config BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL_URL
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string "URL of custom tarball"
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depends on BR2_PACKAGE_XENOMAI_CUSTOM_TARBALL
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choice
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prompt "Xenomai core"
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default BR2_PACKAGE_XENOMAI_MERCURY
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help
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Select the Xenomai core: dual kernel (Cobalt)
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or native Linux Kernel (Mercury).
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config BR2_PACKAGE_XENOMAI_MERCURY
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bool "Mercury"
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depends on !BR2_LINUX_KERNEL_EXT_XENOMAI
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help
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Select Mercury core for the Xenomai userspace.
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You want to use it if you have the native Linux Kernel.
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config BR2_PACKAGE_XENOMAI_COBALT
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bool "Cobalt"
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depends on BR2_PACKAGE_XENOMAI_COBALT_ARCH_SUPPORTS
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help
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Select Cobalt core (dual kernel) for the Xenomai
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userspace. Use this if you use a Xenomai-patched
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Linux kernel.
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If you want to use Cobalt core, your kernel must have
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the Adeos and Xenomai patches applied to it. You can
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add these through the BR2_LINUX_KERNEL_EXT_XENOMAI option
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in the Linux Kernel Extensions menu.
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endchoice
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config BR2_PACKAGE_XENOMAI_ENABLE_SMP
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bool "Enable SMP support"
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default y
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# SMP not supported below armv6
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depends on !BR2_ARM_CPU_ARMV4 && !BR2_ARM_CPU_ARMV5
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help
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This option enables SMP support in Xenomai userspace.
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If this option is turned on while no SMP support is enabled
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in the kernel, things will still work. However, if SMP is
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enabled in the kernel but this option is not turned on,
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Xenomai applications will complain with:
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feature mismatch: missing="smp/nosmp"
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Please refer to this troubleshooting guide for more
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information:
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http://xenomai.org/troubleshooting-a-dual-kernel-configuration/#feature_mismatch_missing8221smpnosmp8221
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config BR2_PACKAGE_XENOMAI_ENABLE_REGISTRY
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bool "Enable registry"
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depends on !BR2_STATIC_LIBS # libfuse
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depends on BR2_TOOLCHAIN_HAS_THREADS # libfuse
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depends on BR2_USE_MMU # libfuse
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select BR2_PACKAGE_LIBFUSE
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help
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Xenomai APIs can export their internal state through a
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pseudo-filesystem, whose files may be read to obtain
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information about the existing real-time objects, such as
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tasks, semaphores, message queues and so on.
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comment "registry needs a toolchain w/ threads, dynamic library"
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depends on BR2_USE_MMU
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depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HAS_THREADS
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config BR2_PACKAGE_XENOMAI_ENABLE_REGISTRY_PATH
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string "Custom registry root path"
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depends on BR2_PACKAGE_XENOMAI_ENABLE_REGISTRY
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help
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Specify the root path of the registry here.
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To use the Xenomai default (currently: /var/run/xenomai),
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leave this option empty.
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config BR2_PACKAGE_XENOMAI_ADDITIONAL_CONF_OPTS
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string "Additional configure options"
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help
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Specify any additional options to pass to the configure
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script here. See Xenomai documentation for details.
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config BR2_PACKAGE_XENOMAI_TESTSUITE
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bool "Install testsuite"
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help
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This option allows to install the Xenomai test programs.
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config BR2_PACKAGE_XENOMAI_RTCAN
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bool "RTCan utilities"
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help
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This option allows to install the Xenomai RT-CAN utilities.
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config BR2_PACKAGE_XENOMAI_ANALOGY
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bool "Analogy libs and utils"
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help
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This option allows to install the Xenomai Analogy utilities
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and libraries
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menu "Skin selection"
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config BR2_PACKAGE_XENOMAI_NATIVE_SKIN
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bool "Alchemy (native) skin"
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default y
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help
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This option allows to install the Alchemy Xenomai skin,
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previously called 'native'
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config BR2_PACKAGE_XENOMAI_POSIX_SKIN
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bool "POSIX skin"
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default y
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help
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This option allows to install the POSIX Xenomai skin
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config BR2_PACKAGE_XENOMAI_PSOS_SKIN
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bool "pSOS skin"
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help
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This option allows to install the pSOS Xenomai skin
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config BR2_PACKAGE_XENOMAI_RTAI_SKIN
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bool "RTAI skin"
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help
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This option allows to install the RTAI Xenomai skin
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config BR2_PACKAGE_XENOMAI_UITRON_SKIN
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bool "uITRON skin"
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help
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This option allows to install the uITRON Xenomai skin
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config BR2_PACKAGE_XENOMAI_VRTX_SKIN
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bool "VRTX skin"
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help
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This option allows to install the VRTX Xenomai skin
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config BR2_PACKAGE_XENOMAI_VXWORKS_SKIN
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bool "VxWorks skin"
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help
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This option allows to install the VxWorks Xenomai skin
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endmenu
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endif
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