# SPDX-License-Identifier: GPL-2.0
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# scripts/dtc makefile
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hostprogs-always-$(CONFIG_DTC) += dtc
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hostprogs-always-$(CHECK_DT_BINDING) += dtc
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dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
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srcpos.o checks.o util.o
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dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
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# Source files need to get at the userspace version of libfdt_env.h to compile
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HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
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ifeq ($(shell pkg-config --exists yaml-0.1 2>/dev/null && echo yes),)
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ifneq ($(CHECK_DT_BINDING)$(CHECK_DTBS),)
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$(error dtc needs libyaml for DT schema validation support. \
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Install the necessary libyaml development package.)
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endif
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HOST_EXTRACFLAGS += -DNO_YAML
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else
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dtc-objs += yamltree.o
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# To include <yaml.h> installed in a non-default path
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HOSTCFLAGS_yamltree.o := $(shell pkg-config --cflags yaml-0.1)
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# To link libyaml installed in a non-default path
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HOSTLDLIBS_dtc := $(shell pkg-config --libs yaml-0.1)
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endif
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# Generated files need one more search path to include headers in source tree
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HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
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HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src)
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# dependencies on generated files need to be listed explicitly
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$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
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