Add macros to support MACH-0 systems on arm64.

mupen64plus-core/src/device/r4300/new_dynarec/arm64/linkage_arm64.S

@@ -18,6 +18,24 @@
  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
+#ifdef LEADING_UNDERSCORE
+
+#define GLOBAL_FUNCTION(name)  \
+	.globl _##name;            \
+	.type _##name, %function;  \
+	_##name
+
+#define LOCAL_FUNCTION(name)  \
+	.type _##name, %function; \
+	_##name
+
+#define GLOBAL_VARIABLE(name, size_) \
+	.global _##name;                 \
+	.type   _##name, %object;        \
+	.size   _##name, size_
+
+#else
+
 #define GLOBAL_FUNCTION(name)  \
     .globl name;               \
     .hidden name;              \
@@ -35,6 +53,8 @@
     .type   name, %object;           \
     .size   name, size_
 
+#endif
+
 .macro movl Wn, imm
     movz    \Wn, (\imm >> 16) & 0xFFFF, lsl 16
     movk    \Wn,  \imm & 0xFFFF
@@ -369,4 +389,4 @@ GLOBAL_FUNCTION(breakpoint):
     brk 0
     ret
 
-END_SECTION
+END_SECTION