On Tuesday 07 February 2012 12:15 AM, Tom Rini wrote:
On Mon, Feb 6, 2012 at 4:37 AM, Aneesh V wrote:
Enable Thumb build and ARM-Thumb interworking based on the new
config flag CONFIG_SYS_THUMB_BUILD
Signed-off-by: Aneesh V
[snip]
-# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
-PF_CPPFLAGS_ARM := $(call cc-option,-marm,)
+# Choose between ARM/Thumb instruction sets
+ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
+PF_CPPFLAGS_ARM += $(call cc-option, -mthumb -mthumb-interwork, \
+ -marm -mno-thumb-interwork)
+else
+PF_CPPFLAGS_ARM += $(call cc-option, -marm -mno-thumb-interwork)
+endif
We need the ':=' syntax to evaluate this once rather than for every
file we build. Same with the rest of the changes here.
Oops! In my initial patch it was affecting PLATFORM_CPPFLAGS. When I
rebased it I didn't notice that PF_CPPFLAGS_ARM was defined for the
first time here. I will fix it.
Thanks,
Aneesh
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