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>

drivers/tty/vt/Makefile

@@ -12,7 +12,7 @@ obj-$(CONFIG_HW_CONSOLE)		+= vt.o defkeymap.o
 # Files generated that shall be removed upon make clean
 clean-files := consolemap_deftbl.c defkeymap.c
 
-hostprogs-y += conmakehash
+hostprogs += conmakehash
 
 quiet_cmd_conmk = CONMK   $@
       cmd_conmk = $(obj)/conmakehash $< > $@

drivers/video/logo/Makefile

@@ -18,7 +18,7 @@ obj-$(CONFIG_SPU_BASE)			+= logo_spe_clut224.o
 
 # How to generate logo's
 
-hostprogs-y := pnmtologo
+hostprogs := pnmtologo
 
 # Create commands like "pnmtologo -t mono -n logo_mac_mono -o ..."
 quiet_cmd_logo = LOGO    $@

drivers/zorro/Makefile

@@ -7,7 +7,7 @@ obj-$(CONFIG_ZORRO)	+= zorro.o zorro-driver.o zorro-sysfs.o
 obj-$(CONFIG_PROC_FS)	+= proc.o
 obj-$(CONFIG_ZORRO_NAMES) +=  names.o
 
-hostprogs-y 		:= gen-devlist
+hostprogs		:= gen-devlist
 
 # Files generated that shall be removed upon make clean
 clean-files := devlist.h

fs/unicode/Makefile

@@ -35,4 +35,4 @@ $(obj)/utf8data.h: $(src)/utf8data.h_shipped FORCE
 endif
 
 targets += utf8data.h
-hostprogs-y += mkutf8data
+hostprogs += mkutf8data

lib/Makefile

@@ -239,8 +239,8 @@ obj-$(CONFIG_ASN1) += asn1_decoder.o
 
 obj-$(CONFIG_FONT_SUPPORT) += fonts/
 
-hostprogs-y	:= gen_crc32table
-hostprogs-y	+= gen_crc64table
+hostprogs	:= gen_crc32table
+hostprogs	+= gen_crc64table
 clean-files	:= crc32table.h
 clean-files	+= crc64table.h
 

lib/raid6/Makefile

@@ -10,7 +10,7 @@ raid6_pq-$(CONFIG_ALTIVEC) += altivec1.o altivec2.o altivec4.o altivec8.o \
 raid6_pq-$(CONFIG_KERNEL_MODE_NEON) += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o
 raid6_pq-$(CONFIG_S390) += s390vx8.o recov_s390xc.o
 
-hostprogs-y	+= mktables
+hostprogs	+= mktables
 
 ifeq ($(CONFIG_ALTIVEC),y)
 altivec_flags := -maltivec $(call cc-option,-mabi=altivec)

net/bpfilter/Makefile

@@ -3,7 +3,7 @@
 # Makefile for the Linux BPFILTER layer.
 #
 
-hostprogs-y := bpfilter_umh
+hostprogs := bpfilter_umh
 bpfilter_umh-objs := main.o
 KBUILD_HOSTCFLAGS += -I $(srctree)/tools/include/ -I $(srctree)/tools/include/uapi
 HOSTCC := $(CC)

samples/bpf/Makefile

@@ -111,65 +111,65 @@ ibumad-objs := bpf_load.o ibumad_user.o $(TRACE_HELPERS)
 hbm-objs := bpf_load.o hbm.o $(CGROUP_HELPERS)
 
 # Tell kbuild to always build the programs
-always := $(tprogs-y)
-always += sockex1_kern.o
-always += sockex2_kern.o
-always += sockex3_kern.o
-always += tracex1_kern.o
-always += tracex2_kern.o
-always += tracex3_kern.o
-always += tracex4_kern.o
-always += tracex5_kern.o
-always += tracex6_kern.o
-always += tracex7_kern.o
-always += sock_flags_kern.o
-always += test_probe_write_user_kern.o
-always += trace_output_kern.o
-always += tcbpf1_kern.o
-always += tc_l2_redirect_kern.o
-always += lathist_kern.o
-always += offwaketime_kern.o
-always += spintest_kern.o
-always += map_perf_test_kern.o
-always += test_overhead_tp_kern.o
-always += test_overhead_raw_tp_kern.o
-always += test_overhead_kprobe_kern.o
-always += parse_varlen.o parse_simple.o parse_ldabs.o
-always += test_cgrp2_tc_kern.o
-always += xdp1_kern.o
-always += xdp2_kern.o
-always += xdp_router_ipv4_kern.o
-always += test_current_task_under_cgroup_kern.o
-always += trace_event_kern.o
-always += sampleip_kern.o
-always += lwt_len_hist_kern.o
-always += xdp_tx_iptunnel_kern.o
-always += test_map_in_map_kern.o
-always += tcp_synrto_kern.o
-always += tcp_rwnd_kern.o
-always += tcp_bufs_kern.o
-always += tcp_cong_kern.o
-always += tcp_iw_kern.o
-always += tcp_clamp_kern.o
-always += tcp_basertt_kern.o
-always += tcp_tos_reflect_kern.o
-always += tcp_dumpstats_kern.o
-always += xdp_redirect_kern.o
-always += xdp_redirect_map_kern.o
-always += xdp_redirect_cpu_kern.o
-always += xdp_monitor_kern.o
-always += xdp_rxq_info_kern.o
-always += xdp2skb_meta_kern.o
-always += syscall_tp_kern.o
-always += cpustat_kern.o
-always += xdp_adjust_tail_kern.o
-always += xdp_fwd_kern.o
-always += task_fd_query_kern.o
-always += xdp_sample_pkts_kern.o
-always += ibumad_kern.o
-always += hbm_out_kern.o
-always += hbm_edt_kern.o
-always += xdpsock_kern.o
+always-y := $(tprogs-y)
+always-y += sockex1_kern.o
+always-y += sockex2_kern.o
+always-y += sockex3_kern.o
+always-y += tracex1_kern.o
+always-y += tracex2_kern.o
+always-y += tracex3_kern.o
+always-y += tracex4_kern.o
+always-y += tracex5_kern.o
+always-y += tracex6_kern.o
+always-y += tracex7_kern.o
+always-y += sock_flags_kern.o
+always-y += test_probe_write_user_kern.o
+always-y += trace_output_kern.o
+always-y += tcbpf1_kern.o
+always-y += tc_l2_redirect_kern.o
+always-y += lathist_kern.o
+always-y += offwaketime_kern.o
+always-y += spintest_kern.o
+always-y += map_perf_test_kern.o
+always-y += test_overhead_tp_kern.o
+always-y += test_overhead_raw_tp_kern.o
+always-y += test_overhead_kprobe_kern.o
+always-y += parse_varlen.o parse_simple.o parse_ldabs.o
+always-y += test_cgrp2_tc_kern.o
+always-y += xdp1_kern.o
+always-y += xdp2_kern.o
+always-y += xdp_router_ipv4_kern.o
+always-y += test_current_task_under_cgroup_kern.o
+always-y += trace_event_kern.o
+always-y += sampleip_kern.o
+always-y += lwt_len_hist_kern.o
+always-y += xdp_tx_iptunnel_kern.o
+always-y += test_map_in_map_kern.o
+always-y += tcp_synrto_kern.o
+always-y += tcp_rwnd_kern.o
+always-y += tcp_bufs_kern.o
+always-y += tcp_cong_kern.o
+always-y += tcp_iw_kern.o
+always-y += tcp_clamp_kern.o
+always-y += tcp_basertt_kern.o
+always-y += tcp_tos_reflect_kern.o
+always-y += tcp_dumpstats_kern.o
+always-y += xdp_redirect_kern.o
+always-y += xdp_redirect_map_kern.o
+always-y += xdp_redirect_cpu_kern.o
+always-y += xdp_monitor_kern.o
+always-y += xdp_rxq_info_kern.o
+always-y += xdp2skb_meta_kern.o
+always-y += syscall_tp_kern.o
+always-y += cpustat_kern.o
+always-y += xdp_adjust_tail_kern.o
+always-y += xdp_fwd_kern.o
+always-y += task_fd_query_kern.o
+always-y += xdp_sample_pkts_kern.o
+always-y += ibumad_kern.o
+always-y += hbm_out_kern.o
+always-y += hbm_edt_kern.o
+always-y += xdpsock_kern.o
 
 ifeq ($(ARCH), arm)
 # Strip all except -D__LINUX_ARM_ARCH__ option needed to handle linux

samples/connector/Makefile

@@ -2,12 +2,8 @@
 obj-$(CONFIG_SAMPLE_CONNECTOR) += cn_test.o
 
 # List of programs to build
-ifdef CONFIG_SAMPLE_CONNECTOR
-hostprogs-y := ucon
-endif
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
+hostprogs := ucon
+always-y := $(hostprogs)
 
 HOSTCFLAGS_ucon.o += -I$(objtree)/usr/include
 

samples/hidraw/Makefile

 # SPDX-License-Identifier: GPL-2.0
 # List of programs to build
-hostprogs-y := hid-example
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
+hostprogs := hid-example
+always-y := $(hostprogs)
 
 HOSTCFLAGS_hid-example.o += -I$(objtree)/usr/include
 

samples/mei/Makefile

 # SPDX-License-Identifier: GPL-2.0
 # Copyright (c) 2012-2019, Intel Corporation. All rights reserved.
 
-hostprogs-y := mei-amt-version
+hostprogs := mei-amt-version
 
 HOSTCFLAGS_mei-amt-version.o += -I$(objtree)/usr/include
 
-always := $(hostprogs-y)
+always-y := $(hostprogs)
 
 all: mei-amt-version

samples/pidfd/Makefile

 # SPDX-License-Identifier: GPL-2.0
 
-hostprogs-y := pidfd-metadata
-always := $(hostprogs-y)
+hostprogs := pidfd-metadata
+always-y := $(hostprogs)
 HOSTCFLAGS_pidfd-metadata.o += -I$(objtree)/usr/include
 all: pidfd-metadata

samples/seccomp/Makefile

 # SPDX-License-Identifier: GPL-2.0
 ifndef CROSS_COMPILE
-hostprogs-y := bpf-fancy dropper bpf-direct user-trap
+hostprogs := bpf-fancy dropper bpf-direct user-trap
 
 HOSTCFLAGS_bpf-fancy.o += -I$(objtree)/usr/include
 HOSTCFLAGS_bpf-fancy.o += -idirafter $(objtree)/include
@@ -40,5 +40,5 @@ HOSTLDLIBS_bpf-fancy += $(MFLAG)
 HOSTLDLIBS_dropper += $(MFLAG)
 HOSTLDLIBS_user-trap += $(MFLAG)
 endif
-always := $(hostprogs-y)
+always-y := $(hostprogs)
 endif

samples/uhid/Makefile

 # SPDX-License-Identifier: GPL-2.0-only
 # List of programs to build
-hostprogs-y := uhid-example
+hostprogs := uhid-example
 
 # Tell kbuild to always build the programs
-always := $(hostprogs-y)
+always-y := $(hostprogs)
 
 HOSTCFLAGS_uhid-example.o += -I$(objtree)/usr/include

samples/vfs/Makefile

 # SPDX-License-Identifier: GPL-2.0-only
 # List of programs to build
-hostprogs-y := \
+hostprogs := \
 	test-fsmount \
 	test-statx
 
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
+always-y := $(hostprogs)
 
 HOSTCFLAGS_test-fsmount.o += -I$(objtree)/usr/include
 HOSTCFLAGS_test-statx.o += -I$(objtree)/usr/include

scripts/Makefile

@@ -7,14 +7,14 @@
 
 HOST_EXTRACFLAGS += -I$(srctree)/tools/include
 
-hostprogs-$(CONFIG_BUILD_BIN2C)  += bin2c
-hostprogs-$(CONFIG_KALLSYMS)     += kallsyms
-hostprogs-$(BUILD_C_RECORDMCOUNT) += recordmcount
-hostprogs-$(CONFIG_BUILDTIME_TABLE_SORT) += sorttable
-hostprogs-$(CONFIG_ASN1)	 += asn1_compiler
-hostprogs-$(CONFIG_MODULE_SIG_FORMAT) += sign-file
-hostprogs-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += extract-cert
-hostprogs-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert
+always-$(CONFIG_BUILD_BIN2C)			+= bin2c
+always-$(CONFIG_KALLSYMS)			+= kallsyms
+always-$(BUILD_C_RECORDMCOUNT)			+= recordmcount
+always-$(CONFIG_BUILDTIME_TABLE_SORT)		+= sorttable
+always-$(CONFIG_ASN1)				+= asn1_compiler
+always-$(CONFIG_MODULE_SIG_FORMAT)		+= sign-file
+always-$(CONFIG_SYSTEM_TRUSTED_KEYRING)		+= extract-cert
+always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE)	+= insert-sys-cert
 
 HOSTCFLAGS_sorttable.o = -I$(srctree)/tools/include
 HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include
@@ -30,10 +30,10 @@ HOSTCFLAGS_sorttable.o += -DUNWINDER_ORC_ENABLED
 HOSTLDLIBS_sorttable = -lpthread
 endif
 
-always		:= $(hostprogs-y) $(hostprogs-m)
+hostprogs := $(always-y) $(always-m)
 
-# The following hostprogs-y programs are only build on demand
-hostprogs-y += unifdef
+# The following programs are only built on demand
+hostprogs += unifdef
 
 subdir-$(CONFIG_GCC_PLUGINS) += gcc-plugins
 subdir-$(CONFIG_MODVERSIONS) += genksyms

scripts/Makefile.build

@@ -16,6 +16,8 @@ obj-m :=
 lib-y :=
 lib-m :=
 always :=
+always-y :=
+always-m :=
 targets :=
 subdir-y :=
 subdir-m :=
@@ -44,7 +46,7 @@ include $(kbuild-file)
 include scripts/Makefile.lib
 
 # Do not include host rules unless needed
-ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
+ifneq ($(hostprogs)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
 include scripts/Makefile.host
 endif
 
@@ -348,7 +350,7 @@ $(obj)/%.o: $(src)/%.S $(objtool_dep) FORCE
 	$(call if_changed_rule,as_o_S)
 
 targets += $(filter-out $(subdir-obj-y), $(real-obj-y)) $(real-obj-m) $(lib-y)
-targets += $(extra-y) $(MAKECMDGOALS) $(always)
+targets += $(extra-y) $(always-y) $(MAKECMDGOALS)
 
 # Linker scripts preprocessor (.lds.S -> .lds)
 # ---------------------------------------------------------------------------
@@ -490,7 +492,7 @@ else
 
 __build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
 	 $(if $(KBUILD_MODULES),$(obj-m) $(mod-targets) $(modorder-target)) \
-	 $(subdir-ym) $(always)
+	 $(subdir-ym) $(always-y)
 	@:
 
 endif

scripts/Makefile.clean

@@ -28,8 +28,8 @@ 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-) \
 		   $(hostlibs-y) $(hostlibs-m) $(hostlibs-) \
 		   $(hostcxxlibs-y) $(hostcxxlibs-m)
 

scripts/Makefile.host

@@ -24,21 +24,21 @@ $(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE
 # Both C and C++ are supported, but preferred language is C for such utilities.
 #
 # Sample syntax (see Documentation/kbuild/makefiles.rst 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))
 host-cshlib := $(sort $(hostlibs-y) $(hostlibs-m))
 host-cxxshlib := $(sort $(hostcxxlibs-y) $(hostcxxlibs-m))
 

scripts/Makefile.lib

@@ -4,6 +4,8 @@ asflags-y  += $(EXTRA_AFLAGS)
 ccflags-y  += $(EXTRA_CFLAGS)
 cppflags-y += $(EXTRA_CPPFLAGS)
 ldflags-y  += $(EXTRA_LDFLAGS)
+always-y   += $(always)
+hostprogs  += $(hostprogs-y) $(hostprogs-m)
 
 # flags that take effect in current and sub directories
 KBUILD_AFLAGS += $(subdir-asflags-y)
@@ -59,6 +61,8 @@ subdir-obj-y := $(filter %/built-in.a, $(obj-y))
 real-obj-y := $(foreach m, $(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
 real-obj-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)) $($(m:.o=-))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m)))
 
+always-y += $(always-m)
+
 # DTB
 # If CONFIG_OF_ALL_DTBS is enabled, all DT blobs are built
 extra-y				+= $(dtb-y)
@@ -72,7 +76,7 @@ endif
 # Add subdir path
 
 extra-y		:= $(addprefix $(obj)/,$(extra-y))
-always		:= $(addprefix $(obj)/,$(always))
+always-y	:= $(addprefix $(obj)/,$(always-y))
 targets		:= $(addprefix $(obj)/,$(targets))
 modorder	:= $(addprefix $(obj)/,$(modorder))
 obj-m		:= $(addprefix $(obj)/,$(obj-m))