Add __INTRODUCED_IN_{32,64}.
Some symbols appeared at different times between 32 and 64 bit. Add a
macro to represent this.
Bug: http://b/28178111
Change-Id: I0aa46d9da3c7301b60df0416bce252f0f37b7b36
diff --git a/libc/include/sys/cdefs.h b/libc/include/sys/cdefs.h
index 2bd058e..24b341e 100644
--- a/libc/include/sys/cdefs.h
+++ b/libc/include/sys/cdefs.h
@@ -451,15 +451,21 @@
#ifdef __clang__
#define __AVAILABILITY(...) __attribute__((availability(android,__VA_ARGS__)))
+#else
+#define __AVAILABILITY(...)
+#endif // __clang__
+
#define __INTRODUCED_IN(api_level) __AVAILABILITY(introduced=api_level)
#define __DEPRECATED_IN(api_level) __AVAILABILITY(deprecated=api_level)
#define __REMOVED_IN(api_level) __AVAILABILITY(obsoleted=api_level)
+
+#if __LP64__
+#define __INTRODUCED_IN_32(api_level)
+#define __INTRODUCED_IN_64 __INTRODUCED_IN
#else
-#define __AVAILABILITY(...)
-#define __INTRODUCED_IN(api_level)
-#define __DEPRECATED_IN(api_level)
-#define __REMOVED_IN(api_level)
-#endif // __clang__
+#define __INTRODUCED_IN_32 __INTRODUCED_IN
+#define __INTRODUCED_IN_64(api_level)
+#endif
#if __has_builtin(__builtin_umul_overflow) || __GNUC__ >= 5
#if __LP64__