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# SPDX-License-Identifier: GPL-2.0
# scripts/dtc makefile
# *** Also keep .gitignore in sync when changing ***
hostprogs-always-$(CONFIG_DTC) += dtc fdtoverlay
hostprogs-always-$(CHECK_DT_BINDING) += dtc
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
# The upstream project builds libfdt as a separate library. We are choosing to
# instead directly link the libfdt object files into fdtoverlay.
libfdt-objs := fdt.o fdt_ro.o fdt_wip.o fdt_sw.o fdt_rw.o fdt_strerror.o fdt_empty_tree.o fdt_addresses.o fdt_overlay.o
libfdt = $(addprefix libfdt/,$(libfdt-objs))
fdtoverlay-objs := $(libfdt) fdtoverlay.o util.o
# Source files need to get at the userspace version of libfdt_env.h to compile
HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
ifeq ($(shell $(HOSTPKG_CONFIG) --exists yaml-0.1 2>/dev/null && echo yes),)
ifneq ($(CHECK_DT_BINDING)$(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
# To include <yaml.h> installed in a non-default path
HOSTCFLAGS_yamltree.o := $(shell $(HOSTPKG_CONFIG) --cflags yaml-0.1)
# To link libyaml installed in a non-default path
HOSTLDLIBS_dtc := $(shell $(HOSTPKG_CONFIG) --libs yaml-0.1)
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
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