From fc41a0a7498636ac0af7c37be80ca8571c2f4173 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 5 Sep 2024 08:47:37 +0900 Subject: kbuild: add intermediate targets for Flex/Bison in scripts/Makefile.host Flex and Bison are used only for host programs. Move their intermediate target processing from scripts/Makefile.build to scripts/Makefile.host. Signed-off-by: Masahiro Yamada --- scripts/Makefile.host | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'scripts/Makefile.host') diff --git a/scripts/Makefile.host b/scripts/Makefile.host index e85be7721a48..e01c13a588dd 100644 --- a/scripts/Makefile.host +++ b/scripts/Makefile.host @@ -160,3 +160,8 @@ $(host-rust): $(obj)/%: $(src)/%.rs FORCE targets += $(host-csingle) $(host-cmulti) $(host-cobjs) \ $(host-cxxmulti) $(host-cxxobjs) $(host-rust) + +# %.lex.o <- %.lex.c <- %.l +# %.tab.o <- %.tab.[ch] <- %.y +targets += $(call intermediate_targets, .lex.o, .lex.c) \ + $(call intermediate_targets, .tab.o, .tab.c .tab.h) -- cgit v1.2.3 From 11b3d5175e6bc3779159228e6077be202d2b0069 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sun, 10 Nov 2024 10:34:35 +0900 Subject: kbuild: support building external modules in a separate build directory There has been a long-standing request to support building external modules in a separate build directory. This commit introduces a new environment variable, KBUILD_EXTMOD_OUTPUT, and its shorthand Make variable, MO. A simple usage: $ make -C M= MO= Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier --- scripts/Makefile.host | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'scripts/Makefile.host') diff --git a/scripts/Makefile.host b/scripts/Makefile.host index e01c13a588dd..c1dedf646a39 100644 --- a/scripts/Makefile.host +++ b/scripts/Makefile.host @@ -96,12 +96,10 @@ hostrust_flags = --out-dir $(dir $@) --emit=dep-info=$(depfile) \ $(KBUILD_HOSTRUSTFLAGS) $(HOST_EXTRARUSTFLAGS) \ $(HOSTRUSTFLAGS_$(target-stem)) -# $(objtree)/$(obj) for including generated headers from checkin source files -ifeq ($(KBUILD_EXTMOD),) +# $(obj) for including generated headers from checkin source files ifdef building_out_of_srctree -hostc_flags += -I $(objtree)/$(obj) -hostcxx_flags += -I $(objtree)/$(obj) -endif +hostc_flags += -I $(obj) +hostcxx_flags += -I $(obj) endif ##### -- cgit v1.2.3