From faabed295cccc2aba2b67f2e7b309f2892d55004 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Sat, 1 Aug 2020 21:27:18 +0900 Subject: kbuild: introduce hostprogs-always-y and userprogs-always-y To build host programs, you need to add the program names to 'hostprogs' to use the necessary build rule, but it is not enough to build them because there is no dependency. There are two types of host programs: built as the prerequisite of another (e.g. gen_crc32table in lib/Makefile), or always built when Kbuild visits the Makefile (e.g. genksyms in scripts/genksyms/Makefile). The latter is typical in Makefiles under scripts/, which contains host programs globally used during the kernel build. To build them, you need to add them to both 'hostprogs' and 'always-y'. This commit adds hostprogs-always-y as a shorthand. The same applies to user programs. net/bpfilter/Makefile builds bpfilter_umh on demand, hence always-y is unneeded. In contrast, programs under samples/ are added to both 'userprogs' and 'always-y' so they are always built when Kbuild visits the Makefiles. userprogs-always-y works as a shorthand. Signed-off-by: Masahiro Yamada Acked-by: Miguel Ojeda --- scripts/mod/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'scripts/mod') diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile index 296b6a3878b2..78071681d924 100644 --- a/scripts/mod/Makefile +++ b/scripts/mod/Makefile @@ -1,8 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 OBJECT_FILES_NON_STANDARD := y -hostprogs := modpost mk_elfconfig -always-y := $(hostprogs) empty.o +hostprogs-always-y += modpost mk_elfconfig +always-y += empty.o modpost-objs := modpost.o file2alias.o sumversion.o -- cgit v1.2.3