1# SPDX-License-Identifier: GPL-2.0 2# scripts/dtc makefile 3 4# *** Also keep .gitignore in sync when changing *** 5hostprogs-always-$(CONFIG_DTC) += dtc fdtoverlay 6hostprogs-always-$(CHECK_DT_BINDING) += dtc 7 8dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \ 9 srcpos.o checks.o util.o 10dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o 11 12# The upstream project builds libfdt as a separate library. We are choosing to 13# instead directly link the libfdt object files into fdtoverlay. 14libfdt-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 15libfdt = $(addprefix libfdt/,$(libfdt-objs)) 16fdtoverlay-objs := $(libfdt) fdtoverlay.o util.o 17 18# Source files need to get at the userspace version of libfdt_env.h to compile 19HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt 20HOST_EXTRACFLAGS += -DNO_YAML 21 22# Generated files need one more search path to include headers in source tree 23HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src) 24HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src) 25 26# dependencies on generated files need to be listed explicitly 27$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h 28