mirror of https://gitee.com/openkylin/linux.git
kbuild: unify modules(_install) for in-tree and external modules
If you attempt to build or install modules ('make modules(_install)'
with CONFIG_MODULES disabled, you will get a clear error message, but
nothing for external module builds.
Factor out the modules and modules_install rules into the common part,
so you will get the same error message when you try to build external
modules with CONFIG_MODULES=n.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada
parent
4b97ec0e9c
commit
3e3005df73
85
Makefile
85
Makefile
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@ -1458,7 +1458,6 @@ endif
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PHONY += modules
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modules: $(if $(KBUILD_BUILTIN),vmlinux) modules_check modules_prepare
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$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
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PHONY += modules_check
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modules_check: modules.order
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@ -1476,12 +1475,9 @@ PHONY += modules_prepare
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modules_prepare: prepare
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$(Q)$(MAKE) $(build)=scripts scripts/module.lds
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# Target to install modules
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PHONY += modules_install
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modules_install: _modinst_ _modinst_post
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PHONY += _modinst_
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_modinst_:
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modules_install: __modinst_pre
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PHONY += __modinst_pre
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__modinst_pre:
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@rm -rf $(MODLIB)/kernel
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@rm -f $(MODLIB)/source
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@mkdir -p $(MODLIB)/kernel
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@ -1493,14 +1489,6 @@ _modinst_:
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@sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order
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@cp -f modules.builtin $(MODLIB)/
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@cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/
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$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
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# This depmod is only for convenience to give the initial
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# boot a modules.dep even before / is mounted read-write. However the
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# boot script depmod is the master version.
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PHONY += _modinst_post
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_modinst_post: _modinst_
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$(call cmd,depmod)
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ifeq ($(CONFIG_MODULE_SIG), y)
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PHONY += modules_sign
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@ -1508,20 +1496,6 @@ modules_sign:
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$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign
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endif
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else # CONFIG_MODULES
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# Modules not configured
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# ---------------------------------------------------------------------------
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PHONY += modules modules_install
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modules modules_install:
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@echo >&2
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@echo >&2 "The present kernel configuration has modules disabled."
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@echo >&2 "Type 'make config' and enable loadable module support."
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@echo >&2 "Then build a kernel with module support enabled."
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@echo >&2
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@exit 1
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endif # CONFIG_MODULES
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###
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@ -1769,24 +1743,9 @@ KBUILD_BUILTIN :=
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KBUILD_MODULES := 1
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build-dirs := $(KBUILD_EXTMOD)
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PHONY += modules
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modules: $(MODORDER)
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$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
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$(MODORDER): descend
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@:
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PHONY += modules_install
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modules_install: _emodinst_ _emodinst_post
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PHONY += _emodinst_
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_emodinst_:
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$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
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PHONY += _emodinst_post
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_emodinst_post: _emodinst_
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$(call cmd,depmod)
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compile_commands.json: $(extmod-prefix)compile_commands.json
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PHONY += compile_commands.json
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@ -1809,6 +1768,39 @@ PHONY += prepare modules_prepare
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endif # KBUILD_EXTMOD
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# ---------------------------------------------------------------------------
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# Modules
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PHONY += modules modules_install
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ifdef CONFIG_MODULES
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modules: $(MODORDER)
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$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
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quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
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cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
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$(KERNELRELEASE)
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modules_install:
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$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
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$(call cmd,depmod)
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else # CONFIG_MODULES
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# Modules not configured
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# ---------------------------------------------------------------------------
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modules modules_install:
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@echo >&2 '***'
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@echo >&2 '*** The present kernel configuration has modules disabled.'
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@echo >&2 '*** To use the module feature, please run "make menuconfig" etc.'
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@echo >&2 '*** to enable CONFIG_MODULES.'
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@echo >&2 '***'
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@exit 1
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endif # CONFIG_MODULES
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# Single targets
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# ---------------------------------------------------------------------------
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# To build individual files in subdirectories, you can do like this:
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@ -1997,11 +1989,6 @@ tools/%: FORCE
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quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
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cmd_rmfiles = rm -rf $(rm-files)
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# Run depmod only if we have System.map and depmod is executable
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quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
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cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
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$(KERNELRELEASE)
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# read saved command lines for existing targets
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existing-targets := $(wildcard $(sort $(targets)))
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