From b0404dc3aed5b42933d7f9650d2a9f6e0620f34c Mon Sep 17 00:00:00 2001
From: guenther <>
Date: Fri, 11 Sep 2015 09:18:27 +0000
Subject: Wrap blowfish, sha*, md5, and rmd160 so that internal calls go direct

ok deraadt@
---
 src/lib/libc/include/namespace.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'src/lib/libc/include/namespace.h')

diff --git a/src/lib/libc/include/namespace.h b/src/lib/libc/include/namespace.h
index c8c864a266..cfdb95ad02 100644
--- a/src/lib/libc/include/namespace.h
+++ b/src/lib/libc/include/namespace.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: namespace.h,v 1.6 2015/09/10 18:13:46 guenther Exp $	*/
+/*	$OpenBSD: namespace.h,v 1.7 2015/09/11 09:18:27 guenther Exp $	*/
 
 #ifndef _LIBC_NAMESPACE_H_
 #define _LIBC_NAMESPACE_H_
@@ -124,6 +124,12 @@
  *	only be needed for syscalls that have C instead of asm stubs.
  *	Matches with PROTO_NORMAL(), PROTO_CANCEL(), or PROTO_WRAP()
  *	ex: DEF_SYS(pread)
+ *
+ *   MAKE_CLONE(dst, src)	Symbols that are exact clones of other symbols
+ *	This declares _libc_dst as being the same type as dst, and makes
+ *	_libc_dst a strong, hidden alias for _libc_src.  You still need to
+ *	DEF_STRONG(dst) or DEF_WEAK(dst) to alias dst itself
+ *	ex: MAKE_CLONE(SHA224Pad, SHA256Pad)
  */
 
 #include <sys/cdefs.h>	/* for __dso_hidden and __{weak,strong}_alias */
@@ -146,6 +152,9 @@
 #define	DEF_WRAP(x)		__weak_alias(x, WRAP(x))
 #define	DEF_SYS(x)		__strong_alias(_thread_sys_##x, HIDDEN(x))
 
+#define	MAKE_CLONE(dst, src)	__dso_hidden typeof(dst) HIDDEN(dst) \
+				__attribute__((alias (HIDDEN_STRING(src))))
+
 
 /*
  * gcc will generate calls to the functions below.
-- 
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