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>
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 66461e9..e5c1aa3 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -450,17 +450,12 @@
# 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