commit 6209c81d40e2b4e129a28bda3259150d79d507e8
author Elliott Hughes <enh@google.com> Fri Jul 18 15:57:41 2014 -0700
committer Elliott Hughes <enh@google.com> Mon Jul 21 19:17:15 2014 -0700
tree cbceab63b63a57a5703441202736d3f5b2f16008
parent b76613627d045acd3bdb7294f424f14c21584872

Use upstream OpenBSD's arc4random.

The getentropy_linux.c is lightly modified to build on Android, but we're now
completely in sync with upstream OpenBSD's arc4random implementation.

(cherry picked from commit 2b67d7dee09852789d9ac7d8972ed6cdb2c18430)

Change-Id: Icc939b5fa2fcac3e15ff93735d2d34f67e9bb149

libc/private/thread_private.h

diff --git a/libc/private/thread_private.h b/libc/private/thread_private.h
index b8b1a81..2e3ac3d 100644
--- a/libc/private/thread_private.h
+++ b/libc/private/thread_private.h
@@ -46,8 +46,9 @@
 __LIBC_HIDDEN__ void    _thread_arc4_lock(void);
 __LIBC_HIDDEN__ void    _thread_arc4_unlock(void);
 
-#define  _ARC4_LOCK() _thread_arc4_lock()
-#define  _ARC4_UNLOCK() _thread_arc4_unlock()
+#define _ARC4_LOCK() _thread_arc4_lock()
+#define _ARC4_UNLOCK() _thread_arc4_unlock()
+#define _ARC4_ATFORK(f) pthread_atfork(NULL, NULL, (f))
 
 __END_DECLS