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kbuild: make modules.order rule consistent with built-in.a

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built-in.a contains the built-in object paths from the current and sub
directories.

module.order collects the module paths from the current and sub
directories.

Make their build rules look more symmetrical.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2020-05-22 11:00:02 +09:00
parent aaa385ba9a
commit 454753d9f6
2 changed files with 8 additions and 4 deletions
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10
scripts/Makefile.build
View File

@ -69,8 +69,9 @@ endif
# ===========================================================================
# subdir-builtin may contain duplications. Use $(sort ...)
# subdir-builtin and subdir-modorder may contain duplications. Use $(sort ...)
subdir-builtin := $(sort $(filter %/built-in.a, $(real-obj-y)))
subdir-modorder := $(sort $(filter %/modules.order, $(modorder)))
ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),)
lib-target := $(obj)/lib.a
@ -383,6 +384,7 @@ $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
# To build objects in subdirs, we need to descend into the directories
$(subdir-builtin): $(obj)/%/built-in.a: $(obj)/% ;
$(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ;
#
# Rule to compile a set of .o files into one .a file (without symbol table)
@ -401,9 +403,9 @@ targets += $(builtin-target)
#
# Create commands to either record .ko file or cat modules.order from
# a subdirectory
$(modorder-target): $(subdir-ym) FORCE
$(obj)/modules.order: $(subdir-modorder) FORCE
$(Q){ $(foreach m, $(modorder), \
$(if $(filter %/modules.order, $m), cat $m, echo $m);) :; } \
$(if $(filter $^, $m), cat $m, echo $m);) :; } \
| $(AWK) '!x[$$0]++' - > $@
#
@ -491,7 +493,7 @@ $(subdir-ym):
$(Q)$(MAKE) $(build)=$@ \
$(if $(filter $@/, $(KBUILD_SINGLE_TARGETS)),single-build=) \
need-builtin=$(if $(filter $@/built-in.a, $(subdir-builtin)),1) \
need-modorder=$(if $(need-modorder),$(if $(filter $@/modules.order, $(modorder)),1))
need-modorder=$(if $(filter $@/modules.order, $(subdir-modorder)),1)
# Add FORCE to the prequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------

2
scripts/Makefile.lib
View File

@ -35,7 +35,9 @@ lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
# Determine modorder.
# Unfortunately, we don't have information about ordering between -y
# and -m subdirs. Just put -y's first.
ifdef need-modorder
modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
endif
# Handle objects in subdirs
# ---------------------------------------------------------------------------