sh: Wrap CPU tuning through cc-option.

Some compilers don't support the explicit CPU tuning, while binutils
is still able to handle the special subtype-specific opcodes. Make
the CFLAG optional, falling back on the compiler default if nothing
better exists.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 7 insertions, 5 deletions

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index ec2d82eda90d..aa76167ceb48 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -34,12 +34,14 @@ isa-y			:= $(isa-y)-nofpu
 endif
 endif
 
-cflags-$(CONFIG_CPU_SH2)                := -m2
-cflags-$(CONFIG_CPU_SH2A)               := -m2a $(call cc-option,-m2a-nofpu,)
-cflags-$(CONFIG_CPU_SH3)                := -m3
-cflags-$(CONFIG_CPU_SH4)                := -m4 \
+cflags-$(CONFIG_CPU_SH2)                := $(call cc-option,-m2,)
+cflags-$(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,) $(call cc-option,-m4a-nofpu,)
+cflags-$(CONFIG_CPU_SH4A)               := $(call cc-option,-m4a,) \
+                                           $(call cc-option,-m4a-nofpu,)
 
 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -mb
 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -ml