util/blobtool: Hook into coreboot build

Add a Makefile.inc, based on sconfig's, to use the _shipped variants
so that the build doesn't have to generate them with flex & bison.

The GENPARSER check is inactive, and will be updated in the next
commit.

Add the c_shipped & h_shipped files for the current .l & .y files.

Change-Id: Ia6c68bfb6e0611ceb6bc76cc66e43266bafc98ad
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/19228
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

util/blobtool/Makefile.inc

@@ -0,0 +1,41 @@
+blobtool_obj := blobtool.lex.o blobtool.tab.o
+
+BLOBTOOL_FLAGS += -I$(top)/util/blobtool -I$(objutil)/blobtool
+
+$(objutil)/blobtool:
+	mkdir -p $@
+
+$(objutil)/blobtool/.generated: $(objutil)/blobtool
+	touch $@
+
+$(objutil)/blobtool/%.o: util/blobtool/%.c | $(objutil)/blobtool/.generated
+	printf "    HOSTCC     $(subst $(obj)/,,$(@))\n"
+	$(HOSTCC) $(BLOBTOOL_FLAGS) $(HOSTCFLAGS) -c -o $@ $<
+
+$(objutil)/blobtool/%.o: $(objutil)/blobtool/%.c
+	printf "    HOSTCC     $(subst $(obj)/,,$(@))\n"
+	$(HOSTCC) $(BLOBTOOL_FLAGS) $(HOSTCFLAGS) -c -o $@ $<
+
+ifeq (0,1)
+$(top)/util/blobtool/blobtool.lex.c_shipped: $(top)/util/blobtool/blobtool.l
+	printf "    FLEX       $(subst $(top)/,,$(@))\n"
+	flex -L -o $@ $<
+
+# the .c rule also creates .h
+$(top)/util/blobtool/blobtool.tab.h_shipped: $(top)/util/blobtool/blobtool.tab.c_shipped
+$(top)/util/blobtool/blobtool.tab.c_shipped: $(top)/util/blobtool/blobtool.y
+	printf "    BISON      $(subst $(top)/,,$(@))\n"
+	bison -l --defines=$(top)/util/blobtool/blobtool.tab.h_shipped -o $@ $<
+endif
+
+$(objutil)/blobtool/blobtool.lex.o: $(objutil)/blobtool/blobtool.tab.h
+
+$(objutil)/blobtool/%: $(top)/util/blobtool/%_shipped
+	mkdir -p $(dir $@)
+	cp $< $@
+
+$(objutil)/blobtool/blobtool: $(addprefix $(objutil)/blobtool/,$(blobtool_obj))
+	printf "    HOSTCC     $(subst $(obj)/,,$(@)) (link)\n"
+	$(HOSTCC) $(BLOBTOOL_FLAGS) -o $@ $(addprefix $(objutil)/blobtool/,$(blobtool_obj))
+
+$(addprefix $(objutil)/blobtool/,$(blobtool_obj)) : $(objutil)/blobtool/blobtool.tab.h $(objutil)/blobtool/blobtool.tab.c $(objutil)/blobtool/blobtool.lex.c