Commit 1bb8b2ef authored by Sergei Poselenov's avatar Sergei Poselenov Committed by Wolfgang Denk

ARM: fix warning: target CPU does not support interworking

This patch fixes warnings like this:

start.S:0: warning: target CPU does not support interworking

which come from some ARM cross compilers and are caused by hard-coded
(with "--with-cpu=arm9" configuration option) ARM targets (which
support ARM Thumb instructions), while the ARM target selected from
the command line (with "-march=armv4") doesn't support Thumb
instructions.

This warning is issued by the compiler regardless of the real use of
the Thumb instructions in code.

To fix this problem, we use options according to compiler version
being used.
Signed-off-by: default avatarSergei Poselenov <sposelenov@emcraft.com>
Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
parent 4265c35f
......@@ -25,3 +25,10 @@ PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
-msoft-float
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
#
# Supply options according to compiler version
#
# =========================================================================
PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu)
PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
......@@ -25,3 +25,10 @@ PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
-msoft-float
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
#
# Supply options according to compiler version
#
# =========================================================================
PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu)
PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
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