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authorVincent Chen <vincentc@andestech.com>2018-11-22 11:14:34 +0800
committerGreentime Hu <greentime@andestech.com>2018-11-22 18:13:13 +0800
commite46bf83c1864a20f9dd17d597ec9be18ed05add8 (patch)
treeb790f6d6935256140cb8e02d9a5dffd64ad74d14 /arch/nds32/Makefile
parent4f014a41b4efd72cbefb5525372dfcd65162eb4e (diff)
downloadlinux-e46bf83c1864a20f9dd17d597ec9be18ed05add8.tar.bz2
nds32: nds32 FPU port
This patch set contains basic components for supporting the nds32 FPU, such as exception handlers and context switch for FPU registers. By default, the lazy FPU scheme is supported and the user can configure it via CONFIG_LZAY_FPU. Signed-off-by: Vincent Chen <vincentc@andestech.com> Acked-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
Diffstat (limited to 'arch/nds32/Makefile')
-rw-r--r--arch/nds32/Makefile4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile
index 9f525ed70049..6dc03206e3c9 100644
--- a/arch/nds32/Makefile
+++ b/arch/nds32/Makefile
@@ -5,10 +5,14 @@ KBUILD_DEFCONFIG := defconfig
comma = ,
+
ifdef CONFIG_FUNCTION_TRACER
arch-y += -malways-save-lp -mno-relax
endif
+# Avoid generating FPU instructions
+arch-y += -mno-ext-fpu-sp -mno-ext-fpu-dp -mfloat-abi=soft
+
KBUILD_CFLAGS += $(call cc-option, -mno-sched-prolog-epilog)
KBUILD_CFLAGS += -mcmodel=large