kbuild: rename hostprogs-y/always to hostprogs/always-y

[ Linux commit 5f2fb52fac15a8a8e10ce020dd532504a8abfc4e ]

In old days, the "host-progs" syntax was used for specifying host
programs. It was renamed to the current "hostprogs-y" in 2004.

It is typically useful in scripts/Makefile because it allows Kbuild to
selectively compile host programs based on the kernel configuration.

This commit renames like follows:

  always       ->  always-y
  hostprogs-y  ->  hostprogs

So, scripts/Makefile will look like this:

  always-$(CONFIG_BUILD_BIN2C) += ...
  always-$(CONFIG_KALLSYMS)    += ...
      ...
  hostprogs := $(always-y) $(always-m)

I think this makes more sense because a host program is always a host
program, irrespective of the kernel configuration. We want to specify
which ones to compile by CONFIG options, so always-y will be handier.

The "always", "hostprogs-y", "hostprogs-m" will be kept for backward
compatibility for a while.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index db687d5f9e..a6ed83e6d2 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -16,6 +16,8 @@ lib-y :=
 lib-m :=
 pbl-y :=
 always :=
+always-y :=
+always-m :=
 targets :=
 subdir-y :=
 subdir-m :=
@@ -43,7 +45,7 @@ include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-di
 include scripts/Makefile.lib
 
 # Do not include host rules unless needed
-ifneq ($(hostprogs-y)$(hostprogs-m),)
+ifneq ($(hostprogs)$(hostprogs-y)$(hostprogs-m),)
 include scripts/Makefile.host
 endif
 
@@ -80,7 +82,7 @@ endif
 
 __build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(pbl-target) $(extra-y)) \
 	 $(if $(KBUILD_MODULES),$(obj-m)) \
-	 $(subdir-ym) $(always)
+	 $(subdir-ym) $(always-y)
 	@:
 
 # Linus' kernel sanity checking tool