1 files changed, 54 insertions, 0 deletions

diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
new file mode 100644
index 000000000000..01cdb36fc583
--- /dev/null
+++ b/scripts/dtc/Makefile
@@ -0,0 +1,54 @@
+# scripts/dtc makefile
+
+hostprogs-y     := dtc
+always          := $(hostprogs-y)
+
+dtc-objs        := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
+                   srcpos.o checks.o
+dtc-objs        += dtc-lexer.lex.o dtc-parser.tab.o
+
+# Source files need to get at the userspace version of libfdt_env.h to compile
+
+HOSTCFLAGS_DTC := -I$(src) -I$(src)/libfdt
+
+HOSTCFLAGS_checks.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_data.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_dtc.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_flattree.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_fstree.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_livetree.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_srcpos.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_treesource.o := $(HOSTCFLAGS_DTC)
+
+HOSTCFLAGS_dtc-lexer.lex.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_dtc-parser.tab.o := $(HOSTCFLAGS_DTC)
+
+# dependencies on generated files need to be listed explicitly
+$(obj)/dtc-parser.tab.o: $(obj)/dtc-parser.tab.c $(obj)/dtc-parser.tab.h
+$(obj)/dtc-lexer.lex.o:  $(obj)/dtc-lexer.lex.c $(obj)/dtc-parser.tab.h
+
+targets += dtc-parser.tab.c dtc-lexer.lex.c
+
+clean-files += dtc-parser.tab.h
+
+# GENERATE_PARSER := 1          # Uncomment to rebuild flex/bison output
+
+ifdef GENERATE_PARSER
+
+BISON = bison
+FLEX = flex
+
+quiet_cmd_bison = BISON   $@
+      cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
+quiet_cmd_flex = FLEX    $@
+      cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
+
+$(obj)/dtc-parser.tab.c: $(src)/dtc-parser.y FORCE
+        $(call if_changed,bison)
+
+$(obj)/dtc-parser.tab.h: $(obj)/dtc-parser.tab.c
+
+$(obj)/dtc-lexer.lex.c: $(src)/dtc-lexer.l FORCE
+        $(call if_changed,flex)
+
+endif