• M
    kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin} · 1bd9a468
    Masahiro Yamada 提交于
    Removing the 'kernel/' prefix will make our life easier because we can
    simply do 'cat modules.order' to get all built modules with full paths.
    
    Currently, we parse the first line of '*.mod' files in $(MODVERDIR).
    Since we have duplicated functionality here, I plan to remove MODVERDIR
    entirely.
    
    In fact, modules.order is generated also for external modules in a
    broken format. It adds the 'kernel/' prefix to the absolute path of
    the module, like this:
    
      kernel//path/to/your/external/module/foo.ko
    
    This is fine for now since modules.order is not used for external
    modules. However, I want to sanitize the format everywhere towards
    the goal of removing MODVERDIR.
    
    We cannot change the format of installed module.{order,builtin}.
    So, 'make modules_install' will add the 'kernel/' prefix while copying
    them to $(MODLIB)/.
    Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
    1bd9a468
Makefile.modbuiltin 1.7 KB
# SPDX-License-Identifier: GPL-2.0
# ==========================================================================
# Generating modules.builtin
# ==========================================================================

src := $(obj)

PHONY := __modbuiltin
__modbuiltin:

include include/config/auto.conf
# tristate.conf sets tristate variables to uppercase 'Y' or 'M'
# That way, we get the list of built-in modules in obj-Y
include include/config/tristate.conf

include scripts/Kbuild.include

ifdef building_out_of_srctree
# Create output directory if not already present
_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
endif

# The filename Kbuild has precedence over Makefile
kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
include $(kbuild-file)

include scripts/Makefile.lib
__subdir-Y     := $(patsubst %/,%,$(filter %/, $(obj-Y)))
subdir-Y       += $(__subdir-Y)
subdir-ym      := $(sort $(subdir-y) $(subdir-Y) $(subdir-m))
subdir-ym      := $(addprefix $(obj)/,$(subdir-ym))
obj-Y          := $(addprefix $(obj)/,$(obj-Y))

modbuiltin-subdirs := $(patsubst %,%/modules.builtin, $(subdir-ym))
modbuiltin-mods    := $(filter %.ko, $(obj-Y:.o=.ko))
modbuiltin-target  := $(obj)/modules.builtin

__modbuiltin: $(modbuiltin-target) $(subdir-ym)
	@:

$(modbuiltin-target): $(subdir-ym) FORCE
	$(Q)(for m in $(modbuiltin-mods); do echo $$m; done;	\
	cat /dev/null $(modbuiltin-subdirs)) > $@

PHONY += FORCE

FORCE:

# Descending
# ---------------------------------------------------------------------------

PHONY += $(subdir-ym)
$(subdir-ym):
	$(Q)$(MAKE) $(modbuiltin)=$@

.PHONY: $(PHONY)
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