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Subject[PATCH 1/2] sparc32,leon: Build with -mcpu=leon3 for SPARC_LEON
Date
Apart from using LEON3 instruction timing it allows for usage of the
CASA instruction.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
---
arch/sparc/Makefile | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index 8496a07..673ee73 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -24,14 +24,20 @@ LDFLAGS := -m elf32_sparc
export BITS := 32
UTS_MACHINE := sparc

+ifeq ($(CONFIG_SPARC_LEON),y)
+SPARC_MCPU=leon3
+else
+SPARC_MCPU=v8
+endif
+
# We are adding -Wa,-Av8 to KBUILD_CFLAGS to deal with a specs bug in some
# versions of gcc. Some gcc versions won't pass -Av8 to binutils when you
# give -mcpu=v8. This silently worked with older bintutils versions but
# does not any more.
-KBUILD_CFLAGS += -m32 -mcpu=v8 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
+KBUILD_CFLAGS += -m32 -mcpu=$(SPARC_MCPU) -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
KBUILD_CFLAGS += -Wa,-Av8

-KBUILD_AFLAGS += -m32 -Wa,-Av8
+KBUILD_AFLAGS += -m32 -mcpu=$(SPARC_MCPU) -Wa,-Av8

else
#####
--
2.8.0
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