Module Name:    src
Committed By:   mrg
Date:           Wed Jun 15 05:01:58 UTC 2016

Modified Files:
        src/crypto/external/bsd/openssh/dist: umac.c
        src/doc: HACKS

Log Message:
replace the previous hack with something that i believe is actually
correct and, more importantly ;), works properly.

thanks for riastradh for hints about which bit was actually broken.


To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/crypto/external/bsd/openssh/dist/umac.c
cvs rdiff -u -r1.169 -r1.170 src/doc/HACKS

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/crypto/external/bsd/openssh/dist/umac.c
diff -u src/crypto/external/bsd/openssh/dist/umac.c:1.10 src/crypto/external/bsd/openssh/dist/umac.c:1.11
--- src/crypto/external/bsd/openssh/dist/umac.c:1.10	Wed Jun 15 02:12:14 2016
+++ src/crypto/external/bsd/openssh/dist/umac.c	Wed Jun 15 05:01:58 2016
@@ -1,4 +1,4 @@
-/*	$NetBSD: umac.c,v 1.10 2016/06/15 02:12:14 mrg Exp $	*/
+/*	$NetBSD: umac.c,v 1.11 2016/06/15 05:01:58 mrg Exp $	*/
 /* $OpenBSD: umac.c,v 1.11 2014/07/22 07:13:42 guenther Exp $ */
 /* -----------------------------------------------------------------------
  * 
@@ -67,7 +67,7 @@
 /* ---------------------------------------------------------------------- */
 
 #include "includes.h"
-__RCSID("$NetBSD: umac.c,v 1.10 2016/06/15 02:12:14 mrg Exp $");
+__RCSID("$NetBSD: umac.c,v 1.11 2016/06/15 05:01:58 mrg Exp $");
 #include <sys/types.h>
 #include <sys/endian.h>
 #include <string.h>
@@ -566,9 +566,6 @@ static void nh_transform(nh_ctx *hc, con
 /* ---------------------------------------------------------------------- */
 
 #if (__LITTLE_ENDIAN__)
-#if __GNUC_PREREQ__(5, 3) && defined(__arm__)
-__attribute__((__optimize__("no-strict-aliasing")))
-#endif
 static void endian_convert(void *buf, UWORD bpw, UINT32 num_bytes)
 /* We endian convert the keys on little-endian computers to               */
 /* compensate for the lack of big-endian memory reads during hashing.     */
@@ -581,13 +578,13 @@ static void endian_convert(void *buf, UW
             p++;
         } while (--iters);
     } else if (bpw == 8) {
-        UINT32 *p = (UINT32 *)buf;
-        UINT32 t;
+        UINT64 *p = (UINT64 *)buf;
+        UINT64 th;
+        UINT64 t;
         do {
-            t = LOAD_UINT32_REVERSED(p+1);
-            p[1] = LOAD_UINT32_REVERSED(p);
-            p[0] = t;
-            p += 2;
+            t = LOAD_UINT32_REVERSED((UINT32 *)p+1);
+            th = LOAD_UINT32_REVERSED((UINT32 *)p);
+            *p++ = t | (th << 32);
         } while (--iters);
     }
 }

Index: src/doc/HACKS
diff -u src/doc/HACKS:1.169 src/doc/HACKS:1.170
--- src/doc/HACKS:1.169	Wed Jun 15 02:12:14 2016
+++ src/doc/HACKS	Wed Jun 15 05:01:58 2016
@@ -1,4 +1,4 @@
-# $NetBSD: HACKS,v 1.169 2016/06/15 02:12:14 mrg Exp $
+# $NetBSD: HACKS,v 1.170 2016/06/15 05:01:58 mrg Exp $
 #
 # This file is intended to document workarounds for currently unsolved
 # (mostly) compiler bugs.
@@ -635,18 +635,6 @@ port	arm
 		is broken.
 	kcah
 
-	hack	gcc-5.3 arm and openssh and -fstrict-aliases
-	cdate	Tue Jun 14 19:05:51 PDT 2016
-	who	mrg
-	file	crypto/external/bsd/openssh/dist/umac.c : 1.10
-	pr	
-	descr	GCC has some yet-unknown code-gen problem on ARM with this
-		file that leads to SSH giving errors and dropping connections.
-		The bpw=8 path of endian_convert(), if compiled with
-		"no-strict-aliases" optimiser attribite, works.  The same
-		problem exist with GCC 5.3 and 5.4.
-	kcah
-
 port	sh3
 
 	hack	gcc4-sh3-bz2

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