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-rw-r--r--arch/x86_64/Makefile4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 6e38d4d..b471b855 100644
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -30,6 +30,10 @@ cflags-y :=
cflags-kernel-y :=
cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
+# gcc doesn't support -march=core2 yet as of gcc 4.3, but I hope it
+# will eventually. Use -mtune=generic as fallback
+cflags-$(CONFIG_MCORE2) += \
+ $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
cflags-y += -m64
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