- fix the compiling errors on MAC
  0983cffc501e5279e7d9e9b2241b506cb332efcb
- fix clang compile errors on linux
  577b658105b90ec1c04b049e43a51384172fb8fc

Index: source/common/aarch64/asm.S
--- source/common/aarch64/asm.S.orig
+++ source/common/aarch64/asm.S
@@ -25,23 +25,35 @@
 
 #ifdef PREFIX
 #define EXTERN_ASM _
+#define HAVE_AS_FUNC 0
+#elif defined __clang__
+#define EXTERN_ASM
+#define HAVE_AS_FUNC 0
+#define PREFIX 1
 #else
 #define EXTERN_ASM
+#define HAVE_AS_FUNC 1
 #endif
 
 #ifdef __ELF__
 #define ELF
 #else
+#ifdef PREFIX
+#define ELF #
+#else
 #define ELF @
 #endif
+#endif
 
-#define HAVE_AS_FUNC 1
-
 #if HAVE_AS_FUNC
 #define FUNC
 #else
+#ifdef PREFIX
+#define FUNC #
+#else
 #define FUNC @
 #endif
+#endif
 
 .macro function name, export=1
     .macro endfunc
@@ -56,6 +68,7 @@ ELF     .hidden EXTERN_ASM\name
 ELF     .type   EXTERN_ASM\name, %function
 FUNC    .func   EXTERN_ASM\name
 EXTERN_ASM\name:
+        bti     c
 .else
 ELF     .hidden \name
 ELF     .type   \name, %function