Hi, attached is a patch of Xenomai trunk build system to allow building Linux kernel as part of Xenomai build process. This way, typing make install builds and installs the Linux kernel, kernel modules and Xenomai.
The patch is a bit young and still has a few drawbacks, but before spending to much time on it, I would like to know if anyone is opposed to the idea of building Linux in Xenomai build tree. To try this patch, apply and run the bootstrap script. 3 options are then added to configure : --enable-linux-build Build Linux in Xenomai build tree --with-linux-srcdir specify the path to Linux sources. Default is to use, if not cross-compiling, the source of the running kernel or /usr/src/linux. --with-adeos-patch specify the path to the Adeos patch. Default is to infer the patch name from Linux kernel version. When using the --enable-linux-build option, configure creates a linux tree in Xenomai build tree, and run the prepare-kernel.sh script for this tree. Typing "make" re-runs prepare-kernel.sh (in case some changes occured in Xenomai sources) and run make in the kernel tree. Known limitations are: - it is not very well tested, so, maybe some error cases are not handled correctly ; - it is not tested with Linux 2.4 ; - for an unknown reason, xenomai modules are built every time prepare-kernel.sh is run ; - the cross-compilation prefix is inferred from the CC variable, it should work in most situations, but not all. Happy new year. -- Gilles Chanteperdrix.
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