testsuite/module-playground/README

   1 Pre-compiled modules
   2 ====================
   3
   4 Some modules are pre-compiled due to needing cross-compilers present on the
   5 build/dev machine which is inconvenient. Makefile is ready to compile them again
   6 in case they are missing:
   7
   8 1) Prepare the linux kernel trees to build external modules, i.e.:
   9
  10    kernel $ make ARCH=<arch> CROSS_COMPILER=<cross-compiler-prefix> defconfig
  11    kernel $ make ARCH=<arch> CROSS_COMPILER=<cross-compiler-prefix> modules_prepare
  12
  13    For each architecture. See the Makefile to check which are the supported architectures.
  14
  15 2) Export the variables below to point to the right place:
  16
  17    KDIR_<arch>:                for each architecture it needs to point to a
  18                                kernel tree configured as in (1)
  19
  20    CROSS_COMPILER_<arch:       for each architecture it needs to point to the
  21                                correct toolchain prefix. Leave it blank if a
  22                                cross-compiler is not needed (example: you are
  23                                building a 32b module with a multilib compiler).
  24
  25
  26 3) Remove every %-<arch>.ko. After this the build system will recreate them.