Radix cross Linux

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