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Masahiro Yamada 5f2fb52fac 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>

2020-02-04 01:53:07 +09:00

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SPDX-License-Identifier: GPL-2.0

scripts/dtc makefile

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 dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o

Source files need to get at the userspace version of libfdt_env.h to compile

HOST_EXTRACFLAGS := -I $(srctree)/$(src)/libfdt

ifeq ($(shell pkg-config --exists yaml-0.1 2>/dev/null && echo yes),) ifneq ($(CHECK_DTBS),) $(error dtc needs libyaml for DT schema validation support.
Install the necessary libyaml development package.) endif HOST_EXTRACFLAGS += -DNO_YAML else dtc-objs += yamltree.o HOSTLDLIBS_dtc := $(shell pkg-config yaml-0.1 --libs) endif

Generated files need one more search path to include headers in source tree

HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src) HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src)

dependencies on generated files need to be listed explicitly

$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h

1016 B Raw Blame History