Radix cross Linux

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   214         kx How to Build External Modules
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   214         kx To build external modules, you must have a prebuilt kernel available that contains
   214         kx the configuration and header files used in the build. Also, the kernel must have been
   214         kx built with modules enabled.
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   214         kx Radix cross Linux provides a 'kernel-source' package installed here.
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   214         kx This kernel source not ready for build modules out-of-tree because Radix cross Linux
   214         kx provides only cross-compiled packages.
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   214         kx To prepare kernel source you have to do following:
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   214         kx     $ cd /usr/src/@KERNEL_SOURCE@
   214         kx     $ make oldconfig
   214         kx     $ make modules_prepare
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   214         kx  If you are using a Radix cross Linux distribution kernel,
   214         kx there will be a 'kernel-source' package for the kernel you are running provided by
   214         kx Radix cross Linux distribution.
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   214         kx This will make sure the kernel contains the information required. The target exists
   214         kx solely as a simple way to prepare a kernel source tree for building external modules.
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   214         kx NOTE: 'modules_prepare' will not build Module.symvers even if CONFIG_MODVERSIONS is set;
   214         kx therefore, a full kernel build needs to be executed to make module versioning work.
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   214         kx Command Syntax
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   214         kx The command to build an external module is:
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   214         kx     $ make -C <path_to_kernel_src> M=$PWD
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   214         kx The kbuild system knows that an external module is being built due to the 'M=<dir>'
   214         kx option given in the command.
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   214         kx To build against the running kernel use:
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   214         kx     $ make -C /lib/modules/`uname -r`/build M=$PWD
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   214         kx Then to install the module(s) just built, add the target 'modules_install' to the command:
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   214         kx     $ make -C /lib/modules/`uname -r`/build M=$PWD modules_install
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   214         kx For mode details please look at
   214         kx   https://www.kernel.org/doc/html/latest/kbuild/modules.html
   214         kx page.