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Add xenomai real-time Framework to buildroot

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[Fixes by Thomas, including comments from Arnout:
  * Use AUTOTARGETS instead of GENTARGETS

  * Use $(KERNEL_ARCH) instead of $(BR2_ARCH) as argument to the
    prepare-kernel.sh script. This allows the arch name to be fixed
    with the usual sed expressions and the quotes to be stripped.

  * Add the --verbose option to prepare-kernel.sh. This allows to get
    some clear error message when no Xenomai patch has been found for
    the current kernel version.

  * Improve the help texts as suggested by Arnout, and remove the
    now useless README file.

  * Add a BR2_PACKAGE_XENOMAI_SMP option, instead of poking inside the
    kernel configuration to find out whether SMP is enabled or
    not. This cannot work because: 1) the kernel might be built
    outside of Buildroot and 2) if the kernel is built inside
    Buildroot, it is built *after* Xenomai, so the kernel
    configuration file is typically not yet present.

  * Simplify the ARM subarchitecture selection as suggested by Arnout.

  * Remove the documentation and development files according to
    Buildroot standards (using BR2_HAVE_DOCUMENTATION and
    BR2_HAVE_DEVFILES).

  * Simplify the /etc/ld.so.conf modification logic.
]

[Peter: whitespace fixes]
Signed-off-by: Benoit Mauduit <benoit.mauduit@openwide.fr>
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Thomas De Schampheleire
2011-09-17 22:22:52 +02:00
committed by Peter Korsgaard
parent 3011d23518
commit 956d4ab0f5
7 changed files with 270 additions and 0 deletions
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30
linux/linux-ext-xenomai.mk Normal file
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##################################################
# Linux Adeos/Xenomai extensions
#
# Patch the linux kernel with xenomai extension
##################################################
ifeq ($(BR2_LINUX_KERNEL_EXT_XENOMAI),y)
# Add dependency to xenomai (user-space) which provide ksrc part
LINUX_DEPENDENCIES += xenomai
# Adeos patch version
XENOMAI_ADEOS_PATCH = $(call qstrip,$(BR2_LINUX_KERNEL_EXT_XENOMAI_ADEOS_PATCH))
ifeq ($(XENOMAI_ADEOS_PATCH),)
XENOMAI_ADEOS_OPT = --default
else
XENOMAI_ADEOS_OPT = --adeos=$(XENOMAI_ADEOS_PATCH)
endif
# Prepare kernel patch
define XENOMAI_PREPARE_KERNEL
$(XENOMAI_DIR)/scripts/prepare-kernel.sh \
--linux=$(LINUX_DIR) \
--arch=$(KERNEL_ARCH) \
$(XENOMAI_ADEOS_OPT) \
--verbose
endef
LINUX_POST_EXTRACT_HOOKS += XENOMAI_PREPARE_KERNEL
endif #BR2_LINUX_EXT_XENOMAI