From: Masahiro Yamada <masahiroy@xxxxxxxxxx> commit 8ae071fc216a25f4f797f33c56857f4dd6b4408e upstream. Josh Triplett reports that initramfs-tools needs modules.builtin and modules.builtin.modinfo to create a working initramfs for a non-modular kernel. If this is a general tooling issue not limited to Debian, I think it makes sense to change modules_install. This commit changes the targets as follows when CONFIG_MODULES=n. In-tree builds: make modules -> no-op make modules_install -> install modules.builtin(.modinfo) External module builds: make modules -> show error message like before make modules_install -> show error message like before Link: https://lore.kernel.org/lkml/36a4014c73a52af27d930d3ca31d362b60f4461c.1686356364.git.josh@xxxxxxxxxxxxxxxx/ Reported-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx> Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx> Reviewed-by: Nicolas Schier <nicolas@xxxxxxxxx> Tested-by: Nicolas Schier <nicolas@xxxxxxxxx> Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx> Tested-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx> Stable-dep-of: 4243afdb9326 ("kbuild: builddeb: always make modules_install, to install modules.builtin*") Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- Makefile | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) --- a/Makefile +++ b/Makefile @@ -1561,6 +1561,8 @@ modules_sign_only := y endif endif +endif # CONFIG_MODULES + modinst_pre := ifneq ($(filter modules_install,$(MAKECMDGOALS)),) modinst_pre := __modinst_pre @@ -1571,18 +1573,18 @@ PHONY += __modinst_pre __modinst_pre: @rm -rf $(MODLIB)/kernel @rm -f $(MODLIB)/source - @mkdir -p $(MODLIB)/kernel + @mkdir -p $(MODLIB) +ifdef CONFIG_MODULES @ln -s $(abspath $(srctree)) $(MODLIB)/source @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ rm -f $(MODLIB)/build ; \ ln -s $(CURDIR) $(MODLIB)/build ; \ fi @sed 's:^\(.*\)\.o$$:kernel/\1.ko:' modules.order > $(MODLIB)/modules.order +endif @cp -f modules.builtin $(MODLIB)/ @cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/ -endif # CONFIG_MODULES - ### # Cleaning is done on three levels. # make clean Delete most generated files @@ -1924,6 +1926,13 @@ help: @echo ' clean - remove generated files in module directory only' @echo '' +__external_modules_error: + @echo >&2 '***' + @echo >&2 '*** The present kernel disabled CONFIG_MODULES.' + @echo >&2 '*** You cannot build or install external modules.' + @echo >&2 '***' + @false + endif # KBUILD_EXTMOD # --------------------------------------------------------------------------- @@ -1960,13 +1969,10 @@ else # CONFIG_MODULES # Modules not configured # --------------------------------------------------------------------------- -modules modules_install: - @echo >&2 '***' - @echo >&2 '*** The present kernel configuration has modules disabled.' - @echo >&2 '*** To use the module feature, please run "make menuconfig" etc.' - @echo >&2 '*** to enable CONFIG_MODULES.' - @echo >&2 '***' - @exit 1 +PHONY += __external_modules_error + +modules modules_install: __external_modules_error + @: KBUILD_MODULES :=
