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

index db687d5f9..a6ed83e6d 100644
@@ -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

index d1e4a7800..6e6c9ef7c 100644
@@ -36,8 +36,8 @@ subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
 # directory
 
 __clean-files	:= $(extra-y) $(extra-m) $(extra-)       \
-		   $(always) $(targets) $(clean-files)   \
-		   $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
+		   $(always) $(always-y) $(always-m) $(always-) $(targets) $(clean-files)   \
+		   $(hostprogs) $(hostprogs-y) $(hostprogs-m) $(hostprogs-)
 
 # as clean-files is given relative to the current directory, this adds
 # a $(obj) prefix, except for absolute paths

index 170952f68..61f0a7714 100644
@@ -6,21 +6,21 @@
 # Both C and C++ are supported, but preferred language is C for such utilities.
 #
 # Sample syntax (see Documentation/kbuild/makefiles.txt for reference)
-# hostprogs-y := bin2hex
+# hostprogs := bin2hex
 # Will compile bin2hex.c and create an executable named bin2hex
 #
-# hostprogs-y    := lxdialog
+# hostprogs     := lxdialog
 # lxdialog-objs := checklist.o lxdialog.o
 # Will compile lxdialog.c and checklist.c, and then link the executable
 # lxdialog, based on checklist.o and lxdialog.o
 #
-# hostprogs-y      := qconf
+# hostprogs       := qconf
 # qconf-cxxobjs   := qconf.o
 # qconf-objs      := menu.o
 # Will compile qconf as a C++ program, and menu as a C program.
 # They are linked as C++ code to the executable qconf
 
-__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
+__hostprogs := $(sort $(hostprogs))
 
 # C code
 # Executables compiled from a single .c file

index a94e16fe0..2b64b5432 100644
@@ -1,3 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+# Backward compatibility
+always-y   += $(always)
+hostprogs  += $(hostprogs-y) $(hostprogs-m)
+
 # Figure out what we need to build from the various variables
 # ===========================================================================
 

@@ -85,10 +90,12 @@ obj-dirs := $(dir $(multi-objs) $(obj-y) $(pbl-y))
 real-objs-y := $(foreach m, $(filter-out $(subdir-obj-y), $(obj-y)), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) $(extra-y)
 real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
 
+always-y += $(always-m)
+
 # Add subdir path
 
 extra-y		:= $(addprefix $(obj)/,$(extra-y))
-always		:= $(addprefix $(obj)/,$(always))
+always-y	:= $(addprefix $(obj)/,$(always-y))
 targets		:= $(addprefix $(obj)/,$(targets))
 obj-y		:= $(addprefix $(obj)/,$(obj-y))
 obj-m		:= $(addprefix $(obj)/,$(obj-m))

index 61f0a7714..8f4d62f22 100644
@@ -1,3 +1,21 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# LEX
+# ---------------------------------------------------------------------------
+quiet_cmd_flex = LEX     $@
+      cmd_flex = $(LEX) -o$@ -L $<
+
+$(obj)/%.lex.c: $(src)/%.l FORCE
+	$(call if_changed,flex)
+
+# YACC
+# ---------------------------------------------------------------------------
+quiet_cmd_bison = YACC    $(basename $@).[ch]
+      cmd_bison = $(YACC) -o $(basename $@).c --defines=$(basename $@).h -t -l $<
+
+$(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE
+	$(call if_changed,bison)
+
 # ==========================================================================
 # Building binaries on the host system
 # Binaries are used during the compilation of the kernel, for example

@@ -5,7 +23,7 @@
 #
 # Both C and C++ are supported, but preferred language is C for such utilities.
 #
-# Sample syntax (see Documentation/kbuild/makefiles.txt for reference)
+# Sample syntax (see Documentation/kbuild/makefiles.rst for reference)
 # hostprogs := bin2hex
 # Will compile bin2hex.c and create an executable named bin2hex
 #

index 2b64b5432..d4c2ed15b 100644
@@ -195,28 +195,6 @@ $(foreach m, $(notdir $1), \
 	$(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
 endef
 
-# LEX
-# ---------------------------------------------------------------------------
-quiet_cmd_flex = LEX     $@
-      cmd_flex = $(LEX) -o$@ -L $<
-
-$(obj)/%.lex.c: $(src)/%.l FORCE
-	$(call if_changed,flex)
-
-# YACC
-# ---------------------------------------------------------------------------
-quiet_cmd_bison = YACC    $@
-      cmd_bison = $(YACC) -o$@ -t -l $<
-
-$(obj)/%.tab.c: $(src)/%.y FORCE
-	$(call if_changed,bison)
-
-quiet_cmd_bison_h = YACC    $@
-      cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $<
-
-$(obj)/%.tab.h: $(src)/%.y FORCE
-	$(call if_changed,bison_h)
-
 # Shipped files
 # ===========================================================================
 

index dc24f5f4c..98ae1f509 100644
@@ -1,2 +1,2 @@
-docproc
+# SPDX-License-Identifier: GPL-2.0-only
 fixdep

index 9e92d899a..290dd27d2 100644
@@ -1,15 +1,6 @@
-###
-# Makefile.basic list the most basic programs used during the build process.
-# The programs listed herein is what is needed to do the basic stuff,
-# such as fix dependency file.
-# This initial step is needed to avoid files to be recompiled
-# when barebox configuration changes (which is what happens when
-# .config is included by main Makefile.
-# ---------------------------------------------------------------------------
-# fixdep: 	 Used to generate dependency information during build process
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# fixdep: used to generate dependency information during build process
 
-hostprogs-y	:= fixdep
-always		:= $(hostprogs-y)
-
-# fixdep is needed to compile other host programs
-$(addprefix $(obj)/,$(filter-out fixdep,$(always))): $(obj)/fixdep
+hostprogs	:= fixdep
+always-y	:= $(hostprogs)