Makefile: Add a 'checkthumb' rule

This rule confirms that if we're on ARM and we have enabled THUMB builds that we have a new enough toolchain to produce a working binary. Changes in v2: - Switch to ALL-$(CONFIG_SYS_THUMB_BUILD) in arch/arm/config.mk (Mike F) - Simplfy checkthumb test after doing the above Signed-off-by: Tom Rini <trini@ti.com> Acked-by: Mike Frysinger <vapier@gentoo.org>

Makefile: Add a 'checkthumb' rule
This rule confirms that if we're on ARM and we have enabled THUMB builds that we have a new enough toolchain to produce a working binary. Changes in v2: - Switch to ALL-$(CONFIG_SYS_THUMB_BUILD) in arch/arm/config.mk (Mike F) - Simplfy checkthumb test after doing the above Signed-off-by: Tom Rini <trini@ti.com> Acked-by: Mike Frysinger <vapier@gentoo.org>
Tom Rini · Albert ARIBAUD
1 parent 19a695f84b
Showing 2 changed files with 12 additions and 0 deletions Side-by-side Diff
Makefile
arch/arm/config.mk
@@ -556,6 +556,13 @@
 $(obj)System.map:	$(obj)u-boot
 		@$(call SYSTEM_MAP,$<) > $(obj)System.map
  
+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
 #
 # Auto-generate the autoconf.mk file (which is included by all makefiles)
 #
@@ -44,6 +44,11 @@
 		$(call cc-option,-mno-thumb-interwork,)
 endif
  
+# Only test once
+ifneq ($(CONFIG_SPL_BUILD),y)
+ALL-$(CONFIG_SYS_THUMB_BUILD)	+= checkthumb
+endif
+
 # Try if EABI is supported, else fall back to old API,
 # i. e. for example:
 # - with ELDK 4.2 (EABI supported), use:
...	...	@@ -556,6 +556,13 @@
556	556	$(obj)System.map: $(obj)u-boot
557	557	@$(call SYSTEM_MAP,$<) > $(obj)System.map
558	558
	559	+checkthumb:
	560	+ @if test $(call cc-version) -lt 0404; then \
	561	+ echo -n '*** Your GCC does not produce working '; \
	562	+ echo 'binaries in THUMB mode.'; \
	563	+ echo '*** Your board is configured for THUMB mode.'; \
	564	+ false; \
	565	+ fi
559	566	#
560	567	# Auto-generate the autoconf.mk file (which is included by all makefiles)
561	568	#
...	...	@@ -44,6 +44,11 @@
44	44	$(call cc-option,-mno-thumb-interwork,)
45	45	endif
46	46
	47	+# Only test once
	48	+ifneq ($(CONFIG_SPL_BUILD),y)
	49	+ALL-$(CONFIG_SYS_THUMB_BUILD) += checkthumb
	50	+endif
	51	+
47	52	# Try if EABI is supported, else fall back to old API,
48	53	# i. e. for example:
49	54	# - with ELDK 4.2 (EABI supported), use: