implemented ability to enable -D_FF_RV_EXIST_ in TIF library It is not clear if this quirk is intentional or not, but TI's production version of tif_na7_db_{fl,ir}.lib was built without -D_FF_RV_EXIST_, and as a result, the code that is present in the source for the TRACEMASK_IN_FFS feature was not compiled in, making the feature unavailable. The present change makes it possible to re-enable this code (when TIF libraries are being rebuilt from source rather than used as blobs) by setting TRACEMASK_IN_FFS=1 on the configure line. The new code is NOT enabled by default: it is not a change which we can justify inflicting on our production firmwares.

build_date.c:	${LIBS}
	../helpers/build-date ${CONFIG_NAME} > $@

build_date.obj:	build_date.c
	../toolwrap/cl470 -q -c -me -mt -o -pw2 -x -mw build_date.c

str2ind.obj:	str2ind.c
	../toolwrap/cl470 -q -c -me -mt -o -pw2 -x -mw str2ind.c

link.cmd:	${LINK_SCRIPT_SRC} Makefile lcfgen
	perl ../scripts/ti/make_cmd.pl lcfgen $@ 0 ${LINK_SCRIPT_SRC} \
		${SPECIAL_LINK_LIBS}

fwimage.out:	${LIBS} build_date.obj str2ind.obj link.cmd
	../toolwrap/vlnk470 -farcall -x -o $@ -m fwimage.map $^

fwimage.m0:	fwimage.out
	../toolwrap/hex470 -m -memwidth 16 -romwidth 16 $<