Makefiles: Rename top-level Makefiles from .inc to .mk

The .inc suffix is confusing to various tools as it's not specific to
Makefiles. This means that editors don't recognize the files, and don't
open them with highlighting and any other specific editor functionality.

This issue is also seen in the release notes generation script where
Makefiles get renamed before running cloc.

The rest of the Makefiles will be renamed in following commits.

Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: Idaf69c6871d0bc1ee5e2e53157b8631c55eb3db9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80063
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

1 files changed, 114 insertions, 0 deletions

diff --git a/util/kconfig/Makefile.mk b/util/kconfig/Makefile.mk
new file mode 100644
index 000000000000..83fad884b71c
--- /dev/null
+++ b/util/kconfig/Makefile.mk
@@ -0,0 +1,114 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Early coreboot specific configuration
+KBUILD_KCONFIG ?= src/Kconfig
+
+export LC_ALL=C
+export LANG=C
+
+DEFCONFIG ?= defconfig
+
+# Include original Makefile, with just enough edits to work for us
+$(objk)/Makefile.real: $(dir $(lastword $(MAKEFILE_LIST)))Makefile
+	mkdir -p $(objk)
+	sed \
+		-e "s,\$$(obj),\$$(objk),g" \
+		-e "s,\$$(src),\$$(srck),g" \
+		-e "s,^help:,help_kconfig help::," \
+		-e "s,^%.config:,__disable__&," \
+		-e "s,^savedefconfig:,__disable__&," \
+		-e "s,\$$(srctree)/arch/\$$(SRCARCH)/configs/\$$(KBUILD_DEFCONFIG),\$$(KBUILD_DEFCONFIG)," \
+		-e "s,--defconfig=arch/\$$(SRCARCH)/configs/\$$(KBUILD_DEFCONFIG),--defconfig=\$$(KBUILD_DEFCONFIG)," \
+		-e "/^unexport CONFIG_$$/d" \
+		$< > $@.tmp
+	mv $@.tmp $@
+
+kecho := echo
+
+cmd = $(cmd_$(1))
+cmd_conf_cfg = $< $(addprefix $(obj)/$*conf-, cflags libs bin); touch $(obj)/$*conf-bin
+
+###
+# Read a file, replacing newlines with spaces
+#
+# Make 4.2 or later can read a file by using its builtin function.
+#
+# Imported from Linux upstream:
+# commit 6768fa4bcb6c1618248f135d04b9287ba2724ae0
+# Author: Masahiro Yamada <masahiroy@kernel.org>
+ifneq ($(filter-out 3.% 4.0 4.1, $(MAKE_VERSION)),)
+read-file = $(subst $(newline),$(space),$(file < $1))
+else
+read-file = $(shell cat $1 2>/dev/null)
+endif
+
+-include $(objk)/Makefile.real
+unexport KCONFIG_DEFCONFIG_LIST
+
+# Fill in Linux kconfig build rules to work
+
+savedefconfig: $(objk)/conf
+	cp $(DOTCONFIG) $(DEFCONFIG)
+	chmod +w $(DEFCONFIG)
+	$< --savedefconfig=$(DEFCONFIG) $(KBUILD_KCONFIG)
+
+FORCE:
+
+filechk=$< > $@
+
+$(objk)/%.o: $(srck)/%.c
+	$(HOSTCC) -I $(srck) -I $(objk) -c $(HOSTCFLAGS_$(notdir $@)) -o $@ $<
+
+$(objk)/%.o: $(srck)/%.cc
+	$(HOSTCXX) -I $(srck) -I $(objk) -c $(HOSTCXXFLAGS_$(notdir $@)) -o $@ $<
+
+$(objk)/%.o: $(objk)/%.c
+	$(HOSTCC) -I $(srck) -I $(objk) -c -o $@ $<
+
+$(objk)/%.moc: $(srck)/%.h | $(objk)/qconf-cfg
+	$(call cmd_moc)
+
+define hostprogs_template
+# $1 entry in hostprogs
+$(objk)/$(1): $$(foreach _o,$$($(1)-objs) $$($(1)-cxxobjs),$(objk)/$$(_o)) | $(wildcard $(objk)/$(1)-cfg)
+	$$(HOSTCXX) -o $$@ $$^ $$(HOSTLDLIBS_$(1))
+endef
+
+$(foreach prog,$(hostprogs),$(eval $(call hostprogs_template,$(prog))))
+
+# This might be a bit of a chicken & egg problem, using a kconfig flag when
+# building kconfig, but if you're messing with the parser you probably know
+# what you're doing: make CONFIG_UTIL_GENPARSER=y
+ifeq ($(CONFIG_UTIL_GENPARSER),y)
+$(objk)/%.tab.c $(objk)/%.tab.h: $(srck)/%.y
+	bison -t -l --defines -b $(objk)/$* $<
+
+$(objk)/%.lex.c: $(srck)/%.l
+	flex -L -o$@ $<
+
+else # !CONFIG_UTIL_GENPARSER
+
+$(objk)/parser.tab.c: | $(objk)/parser.tab.h
+
+$(objk)/%: $(srck)/%_shipped
+	cp $< $@
+
+endif
+
+# Support mingw by shipping our own regex implementation
+_OS=$(shell uname -s |cut -c-7)
+regex-objs=
+ifeq ($(_OS),MINGW32)
+	regex-objs=regex.o
+endif
+$(objk)/regex.o: $(srck)/regex.c
+	$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) -DHAVE_STRING_H -c -o $@ $<
+
+conf-objs += $(regex-objs)
+mconf-objs += $(regex-objs)
+
+# Provide tool to convert kconfig output into Ada format
+$(objk)/toada: $(objk)/toada.o
+	$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) -o $@ $^
+$(objk)/toada.o: $(srck)/toada.c
+	$(HOSTCC) $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) -c -o $@ $<