From cb6e7b0db9eb602c0cd8a704957619909bdfdb1b Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 30 Oct 2014 11:06:10 +0900 Subject: kbuild: improve multi-objs dependency and cleanups Since Linux 3.18-rc1, Kbuild is able to handle multi-objs dependency correctly, which also allows us futher cleanups of some makefiles. This commit imports those commits: [1] commit c8589d1e9e01 by Masahiro Yamada kbuild: handle multi-objs dependency appropriately [2] commit 97e3226e6e98 by Masahiro Yamada kbuild: handle the dependency of multi-objs hostprogs appropriately [3] commit 022af62d0190 by Masahiro Yamada kbuild: refactor script/kconfig/Makefile [4] commit 221ecca6cafe by Masahiro Yamada kbuild: remove redundant clean-files from scripts/kconfig/Makefile Signed-off-by: Masahiro Yamada --- scripts/Makefile.lib | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'scripts/Makefile.lib') diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 072abaafb18..9d1383a38f7 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -160,6 +160,15 @@ dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ modname-multi = $(sort $(foreach m,$(multi-used),\ $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=)))) +# Useful for describing the dependency of composite objects +# Usage: +# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) +define multi_depend +$(foreach m, $(notdir $1), \ + $(eval $(obj)/$m: \ + $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) +endef + ifdef REGENERATE_PARSERS # GPERF -- cgit v1.2.3