scripts/dtc/Makefile

   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