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| author | Masahiro Yamada <masahiroy@kernel.org> | 2024-11-10 10:34:35 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2024-11-28 08:11:55 +0900 |
| commit | 11b3d5175e6bc3779159228e6077be202d2b0069 (patch) | |
| tree | 8b85efcc9a4538c3e23c0beb7145f6a55f90f96d /Documentation/kbuild/modules.rst | |
| parent | bad6beb2c0bb982b830f592a7b3e3eee76cbb85a (diff) | |
kbuild: support building external modules in a separate build directory
There has been a long-standing request to support building external
modules in a separate build directory.
This commit introduces a new environment variable, KBUILD_EXTMOD_OUTPUT,
and its shorthand Make variable, MO.
A simple usage:
$ make -C <kernel-dir> M=<module-src-dir> MO=<module-build-dir>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Diffstat (limited to 'Documentation/kbuild/modules.rst')
| -rw-r--r-- | Documentation/kbuild/modules.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/kbuild/modules.rst b/Documentation/kbuild/modules.rst index cd5a54d91e6d..a01f3754c7fc 100644 --- a/Documentation/kbuild/modules.rst +++ b/Documentation/kbuild/modules.rst @@ -66,7 +66,10 @@ Options of the kernel output directory if the kernel was built in a separate build directory.) - make -C $KDIR M=$PWD + You can optionally pass MO= option if you want to build the modules in + a separate directory. + + make -C $KDIR M=$PWD [MO=$BUILD_DIR] -C $KDIR The directory that contains the kernel and relevant build @@ -80,6 +83,9 @@ Options directory where the external module (kbuild file) is located. + MO=$BUILD_DIR + Specifies a separate output directory for the external module. + Targets ------- |