scripts/dtc/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 # scripts/dtc makefile
   3
   4 hostprogs                       := dtc
   5 always-$(CONFIG_DTC)            += $(hostprogs)
   6 always-$(CHECK_DT_BINDING)      += $(hostprogs)
   7
   8 dtc-objs        := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
   9                    srcpos.o checks.o util.o
  10 dtc-objs        += dtc-lexer.lex.o dtc-parser.tab.o
  11
  12 # Source files need to get at the userspace version of libfdt_env.h to compile
  13 HOST_EXTRACFLAGS := -I $(srctree)/$(src)/libfdt
  14
  15 ifeq ($(shell pkg-config --exists yaml-0.1 2>/dev/null && echo yes),)
  16 ifneq ($(CHECK_DT_BINDING)$(CHECK_DTBS),)
  17 $(error dtc needs libyaml for DT schema validation support. \
  18         Install the necessary libyaml development package.)
  19 endif
  20 HOST_EXTRACFLAGS += -DNO_YAML
  21 else
  22 dtc-objs        += yamltree.o
  23 # To include <yaml.h> installed in a non-default path
  24 HOSTCFLAGS_yamltree.o := $(shell pkg-config --cflags yaml-0.1)
  25 # To link libyaml installed in a non-default path
  26 HOSTLDLIBS_dtc  := $(shell pkg-config yaml-0.1 --libs)
  27 endif
  28
  29 # Generated files need one more search path to include headers in source tree
  30 HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
  31 HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src)
  32
  33 # dependencies on generated files need to be listed explicitly
  34 $(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h