Blackfin: cache result of cpp check
Avoid overhead of computing this value multiple times.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/config.mk b/arch/blackfin/config.mk
index f9d46de..3595aa2 100644
--- a/arch/blackfin/config.mk
+++ b/arch/blackfin/config.mk
@@ -48,9 +48,10 @@
endif
ifeq ($(CONFIG_ENV_IS_EMBEDDED_IN_LDR),y)
CREATE_LDR_ENV = $(obj)tools/envcrc --binary > $(obj)env-ldr.o
-HOSTCFLAGS_NOPED += \
+HOSTCFLAGS_NOPED_ADSP := \
$(shell $(CPP) -dD - -mcpu=$(CONFIG_BFIN_CPU) </dev/null \
| awk '$$2 ~ /ADSP/ { print "-D" $$2 }')
+HOSTCFLAGS_NOPED += $(HOSTCFLAGS_NOPED_ADSP)
else
CREATE_LDR_ENV =
endif