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>
This commit is contained in:
Tom Rini 2012-03-16 06:34:35 +00:00 committed by Albert ARIBAUD
parent 19a695f84b
commit 06a119a031
2 changed files with 12 additions and 0 deletions

View File

@ -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)
#

View File

@ -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: