sh: Don't let SH-4A clobber SH-4 CFLAGS.
Older compilers don't support the -m4a{,nofpu} flags, which has the
side-effect of allowing FP operations to be emitted. Switch this to
incremental tuning, so we at least have -m4-nofpu as a fallback for
the gcc3 toolchains.
Without this, certain modules emit references to __udivsi3_i4 and
__sdivsi3_i4.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index c7a8e1f..77fecc6 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -35,12 +35,12 @@
endif
cflags-$(CONFIG_CPU_SH2) := $(call cc-option,-m2,)
-cflags-$(CONFIG_CPU_SH2A) := $(call cc-option,-m2a,) \
+cflags-$(CONFIG_CPU_SH2A) += $(call cc-option,-m2a,) \
$(call cc-option,-m2a-nofpu,)
cflags-$(CONFIG_CPU_SH3) := $(call cc-option,-m3,)
cflags-$(CONFIG_CPU_SH4) := $(call cc-option,-m4,) \
$(call cc-option,-mno-implicit-fp,-m4-nofpu)
-cflags-$(CONFIG_CPU_SH4A) := $(call cc-option,-m4a,) \
+cflags-$(CONFIG_CPU_SH4A) += $(call cc-option,-m4a,) \
$(call cc-option,-m4a-nofpu,)
cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb