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-rw-r--r--arch/arc/Makefile7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 864adad52280..19cce226d1a8 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -50,6 +50,9 @@ atleast_gcc44 := $(call cc-ifversion, -ge, 0404, y)
cflags-$(atleast_gcc44) += -fsection-anchors
+cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock
+cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape
+
ifdef CONFIG_ISA_ARCV2
ifndef CONFIG_ARC_HAS_LL64
@@ -68,7 +71,9 @@ cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi)
ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
# Generic build system uses -O2, we want -O3
# Note: No need to add to cflags-y as that happens anyways
-ARCH_CFLAGS += -O3
+#
+# Disable the false maybe-uninitialized warings gcc spits out at -O3
+ARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,)
endif
# small data is default for elf32 tool-chain. If not usable, disable it