diff --git a/cc/sabi.go b/cc/sabi.go
index 318d198..1a5361d 100644
--- a/cc/sabi.go
+++ b/cc/sabi.go
@@ -67,6 +67,13 @@
 	// Assuming that the cflags which clang LibTooling tools cannot
 	// understand have not been converted to ninja variables yet.
 	flags.ToolingCFlags = filterOutWithPrefix(flags.CFlags, config.ClangLibToolingUnknownCflags)
+
+	// RSClang does not support recent mcpu option likes exynos-m2.
+	// So we need overriding mcpu option when we want to use it.
+	if ctx.Arch().CpuVariant == "exynos-m2" {
+		flags.ToolingCFlags = append(flags.ToolingCFlags, "-mcpu=cortex-a53")
+	}
+
 	return flags
 }