Fix linux build.

Change-Id: Ic480b454fe7ecd435d1b2292971f2a59bd26d2bd
diff --git a/runtime/arch/x86_64/asm_support_x86_64.S b/runtime/arch/x86_64/asm_support_x86_64.S
index d3cd4df..70c71c2 100644
--- a/runtime/arch/x86_64/asm_support_x86_64.S
+++ b/runtime/arch/x86_64/asm_support_x86_64.S
@@ -117,6 +117,10 @@
     .globl VAR(c_name, 0)
     ALIGN_FUNCTION_ENTRY
 VAR(c_name, 0):
+#if !defined(__APPLE__)
+    // Have a local entrypoint that's not globl
+VAR(c_name, 0)_local:
+#endif
     CFI_STARTPROC
     // Ensure we get a sane starting CFA.
     CFI_DEF_CFA(rsp, 8)