linux - scripts/dtc/Makefile

30 lines · 959 B

1	# SPDX-License-Identifier: GPL-2.0
2	# scripts/dtc makefile
3
4	hostprogs-$(CONFIG_DTC) := dtc
5	always := $(hostprogs-y)
6
7	dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
8	srcpos.o checks.o util.o
9	dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
10
11	# Source files need to get at the userspace version of libfdt_env.h to compile
12	HOST_EXTRACFLAGS := -I $(srctree)/$(src)/libfdt
13
14	ifeq ($(wildcard /usr/include/yaml.h),)
15	ifneq ($(CHECK_DTBS),)
16	$(error dtc needs libyaml for DT schema validation support. \
17	Install the necessary libyaml development package.)
18	endif
19	HOST_EXTRACFLAGS += -DNO_YAML
20	else
21	dtc-objs += yamltree.o
22	HOSTLDLIBS_dtc := -lyaml
23	endif
24
25	# Generated files need one more search path to include headers in source tree
26	HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
27	HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src)
28
29	# dependencies on generated files need to be listed explicitly
30	$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h