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

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>

scripts/basic/Makefile

@@ -2,5 +2,5 @@
 #
 # fixdep: used to generate dependency information during build process
 
-hostprogs-y	:= fixdep
-always		:= $(hostprogs-y)
+hostprogs	:= fixdep
+always-y	:= $(hostprogs)

scripts/dtc/Makefile

 # SPDX-License-Identifier: GPL-2.0
 # scripts/dtc makefile
 
-hostprogs-$(CONFIG_DTC) := dtc
-always		:= $(hostprogs-y)
+hostprogs		:= dtc
+always-$(CONFIG_DTC)	:= $(hostprogs)
 
 dtc-objs	:= dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
 		   srcpos.o checks.o util.o

scripts/gcc-plugins/Makefile

@@ -23,7 +23,7 @@ $(objtree)/$(obj)/randomize_layout_seed.h: FORCE
 targets = randomize_layout_seed.h randomize_layout_hash.h
 
 $(HOSTLIBS)-y := $(foreach p,$(GCC_PLUGIN),$(if $(findstring /,$(p)),,$(p)))
-always := $($(HOSTLIBS)-y)
+always-y := $($(HOSTLIBS)-y)
 
 $(foreach p,$($(HOSTLIBS)-y:%.so=%),$(eval $(p)-objs := $(p).o))
 

scripts/genksyms/Makefile

 # SPDX-License-Identifier: GPL-2.0
 
-hostprogs-y	:= genksyms
-always		:= $(hostprogs-y)
+hostprogs	:= genksyms
+always-y	:= $(hostprogs)
 
 genksyms-objs	:= genksyms.o parse.tab.o lex.lex.o
 

scripts/kconfig/Makefile

@@ -157,11 +157,11 @@ HOSTCFLAGS_lexer.lex.o	:= -I $(srctree)/$(src)
 HOSTCFLAGS_parser.tab.o	:= -I $(srctree)/$(src)
 
 # conf: Used for defconfig, oldconfig and related targets
-hostprogs-y	+= conf
+hostprogs	+= conf
 conf-objs	:= conf.o $(common-objs)
 
 # nconf: Used for the nconfig target based on ncurses
-hostprogs-y	+= nconf
+hostprogs	+= nconf
 nconf-objs	:= nconf.o nconf.gui.o $(common-objs)
 
 HOSTLDLIBS_nconf	= $(shell . $(obj)/nconf-cfg && echo $$libs)
@@ -171,7 +171,7 @@ HOSTCFLAGS_nconf.gui.o	= $(shell . $(obj)/nconf-cfg && echo $$cflags)
 $(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
 
 # mconf: Used for the menuconfig target based on lxdialog
-hostprogs-y	+= mconf
+hostprogs	+= mconf
 lxdialog	:= $(addprefix lxdialog/, \
 		     checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
 mconf-objs	:= mconf.o $(lxdialog) $(common-objs)
@@ -183,7 +183,7 @@ $(foreach f, mconf.o $(lxdialog), \
 $(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
 
 # qconf: Used for the xconfig target based on Qt
-hostprogs-y	+= qconf
+hostprogs	+= qconf
 qconf-cxxobjs	:= qconf.o
 qconf-objs	:= images.o $(common-objs)
 
@@ -199,7 +199,7 @@ $(obj)/%.moc: $(src)/%.h $(obj)/qconf-cfg
 	$(call cmd,moc)
 
 # gconf: Used for the gconfig target based on GTK+
-hostprogs-y	+= gconf
+hostprogs	+= gconf
 gconf-objs	:= gconf.o images.o $(common-objs)
 
 HOSTLDLIBS_gconf    = $(shell . $(obj)/gconf-cfg && echo $$libs)

scripts/mod/Makefile

 # SPDX-License-Identifier: GPL-2.0
 OBJECT_FILES_NON_STANDARD := y
 
-hostprogs-y	:= modpost mk_elfconfig
-always		:= $(hostprogs-y) empty.o
+hostprogs	:= modpost mk_elfconfig
+always-y	:= $(hostprogs) empty.o
 
 modpost-objs	:= modpost.o file2alias.o sumversion.o
 

scripts/selinux/genheaders/Makefile

 # SPDX-License-Identifier: GPL-2.0
-hostprogs-y	:= genheaders
+hostprogs	:= genheaders
 HOST_EXTRACFLAGS += \
 	-I$(srctree)/include/uapi -I$(srctree)/include \
 	-I$(srctree)/security/selinux/include
 
-always		:= $(hostprogs-y)
+always-y	:= $(hostprogs)

scripts/selinux/mdp/Makefile

 # SPDX-License-Identifier: GPL-2.0
-hostprogs-y	:= mdp
+hostprogs	:= mdp
 HOST_EXTRACFLAGS += \
 	-I$(srctree)/include/uapi -I$(srctree)/include \
 	-I$(srctree)/security/selinux/include -I$(objtree)/include
 
-always		:= $(hostprogs-y)
+always-y	:= $(hostprogs)
 clean-files	:= policy.* file_contexts

usr/Makefile

@@ -52,7 +52,7 @@ ifeq ($(cpio-data),)
 
 cpio-data := $(obj)/initramfs_data.cpio
 
-hostprogs-y := gen_init_cpio
+hostprogs := gen_init_cpio
 
 # .initramfs_data.cpio.d is used to identify all files included
 # in initramfs and to detect if any files are added/removed.