Make gensyscalls.py use the ALIAS_SYMBOL macro.

Change-Id: Ib94c0abb6fc85126ecc5ed3f1962b2b8b90b9952
diff --git a/libc/tools/gensyscalls.py b/libc/tools/gensyscalls.py
index 7e11418..4d0afe2 100755
--- a/libc/tools/gensyscalls.py
+++ b/libc/tools/gensyscalls.py
@@ -56,12 +56,6 @@
 """
 
 
-function_alias = """
-    .globl %(alias)s
-    .equ %(alias)s, %(func)s
-"""
-
-
 #
 # ARM assembler templates for each syscall stub
 #
@@ -284,7 +278,7 @@
     # Add any aliases for this syscall.
     aliases = syscall["aliases"]
     for alias in aliases:
-        stub += function_alias % { "func" : syscall["func"], "alias" : alias }
+        stub += "\nALIAS_SYMBOL(%s, %s)\n" % (alias, syscall["func"])
 
     # Use hidden visibility on LP64 for any functions beginning with underscores.
     # Force hidden visibility for any functions which begin with 3 underscores