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kbuild: clean up archive rule of built-in.a 

With the incremental linking entirely dropped, we can simplify
the Makefile.

While I am here, I renamed cmd_link_o_target to cmd_ar_builtin.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2018-03-19 20:26:12 +09:00
parent 7657f60e8f
commit 5e18f0290f
1 changed files with 4 additions and 9 deletions
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13
scripts/Makefile.build
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@ -450,17 +450,12 @@ ifdef builtin-target
# makes them small and fast, but unable to be used by the linker.
# scripts/link-vmlinux.sh builds an aggregate built-in.a with a symbol
# table and index.
cmd_make_builtin = rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS)
cmd_make_empty_builtin = rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS)
quiet_cmd_link_o_target = AR $@
# If the list of objects to link is empty, just create an empty built-in.a
cmd_link_o_target = $(if $(strip $(real-obj-y)),\
$(cmd_make_builtin) $@ $(filter $(real-obj-y), $^), \
$(cmd_make_empty_builtin) $@)
quiet_cmd_ar_builtin = AR $@
cmd_ar_builtin = rm -f $@; \
$(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(filter $(real-obj-y), $^)
$(builtin-target): $(real-obj-y) FORCE
$(call if_changed,link_o_target)
$(call if_changed,ar_builtin)
targets += $(builtin-target)
endif # builtin-target