On Tue, Sep 17, 2024 at 11:17 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote: > > > There has been a long-standing request to support building external > modules in a separate build directory. > > The first half is cleanups of documents and Makefiles. > > The last part adds KBUILD_EXTMOD_OUTPUT (MO=). > This is too big changes, and too late for the current MW. > (I did not test kselftest at all.) > I hope people test this and may uncover some issues. > > > > Masahiro Yamada (23): > kbuild: doc: update the description about Kbuild/Makefile split > kbuild: doc: remove description about grepping CONFIG options > kbuild: doc: remove outdated description of the limitation on -I usage > kbuild: doc: remove the description about shipped files > kbuild: doc: describe the -C option precisely for external module > builds > kbuild: doc: replace "gcc" in external module description > kbuild: remove unnecessary prune of rust/alloc for rustfmt > kbuild: simplify find command for rustfmt > speakup: use SPKDIR=$(src) to specify the source directory > kbuild: refactor the check for missing config files > kbuild: check the presence of include/generated/rustc_cfg > scripts/nsdeps: use VPATH as src_prefix > kbuild: replace two $(abs_objtree) with $(CURDIR) in top Makefile > kbuild: add $(objtree)/ prefix to some in-kernel build artifacts > kbuild: rename abs_objtree to abs_output > kbuild: use 'output' variable to create the output directory > kbuild: build external modules in their directory > kbuild: remove extmod_prefix, MODORDER, MODULES_NSDEPS variables > kbuild: support building external modules in a separate build > directory > kbuild: support -fmacro-prefix-map for external modules > kbuild: use absolute path in the generated wrapper Makefile > kbuild: make wrapper Makefile more convenient for external modules > kbuild: allow to start building external module in any directory I CC'ed rust ML because Ack for the following patches are appreciated. [07/23] kbuild: remove unnecessary prune of rust/alloc for rustfmt [08/23] kbuild: simplify find command for rustfmt [11/23] kbuild: check the presence of include/generated/rustc_cfg -- Best Regards Masahiro Yamada
