kbuild: move "checkthumb" to ARM archprepare
"checkthumb" makes sense only for ARM architecture.
Move it to arch/arm/config.mk.
To make sure gcc supports THUMB mode before beginning build,
run "checkthumb" during "archprepare".
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/arch/arm/config.mk b/arch/arm/config.mk
index 792cb43..f4c2d81 100644
--- a/arch/arm/config.mk
+++ b/arch/arm/config.mk
@@ -41,7 +41,17 @@
# Only test once
ifneq ($(CONFIG_SPL_BUILD),y)
-ALL-$(CONFIG_SYS_THUMB_BUILD) += checkthumb
+ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
+archprepare: checkthumb
+
+checkthumb:
+ @if test "$(call cc-version)" -lt "0404"; then \
+ echo -n '*** Your GCC does not produce working '; \
+ echo 'binaries in THUMB mode.'; \
+ echo '*** Your board is configured for THUMB mode.'; \
+ false; \
+ fi
+endif
endif
# Try if EABI is supported, else fall back to old API,