Radix cross Linux

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