From 06a119a03147aec3cf1fe746a6ef0aa1c66e7e72 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Fri, 16 Mar 2012 06:34:35 +0000 Subject: [PATCH] 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 Acked-by: Mike Frysinger --- Makefile | 7 +++++++ arch/arm/config.mk | 5 +++++ 2 files changed, 12 insertions(+) diff --git a/Makefile b/Makefile index 023ea23a38..351a8f04d2 100644 --- a/Makefile +++ b/Makefile @@ -556,6 +556,13 @@ SYSTEM_MAP = \ $(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) # diff --git a/arch/arm/config.mk b/arch/arm/config.mk index 4cc99e7613..3f4453a234 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -44,6 +44,11 @@ PF_CPPFLAGS_ARM := $(call cc-option,-marm,) \ $(call cc-option,-mno-thumb-interwork,) endif +# Only test once +ifneq ($(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: -- 2.39.5