Sync upstream-openbsd.

(cherry picked from commit 4f0b67a8db)

Change-Id: I8753959853312ab978bc4eb1bbbcdc7d1b007b95

libc/upstream-openbsd/lib/libc/stdlib/exit.c

@@ -33,6 +33,16 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include "atexit.h"
+#include "thread_private.h"
+
+/*
+ * This variable is zero until a process has created a thread.
+ * It is used to avoid calling locking functions in libc when they
+ * are not required. By default, libc is intended to be(come)
+ * thread-safe, but without a (significant) penalty to non-threaded
+ * processes.
+ */
+int     __isthreaded    = 0;
 
 /*
  * Exit, flushing stdio buffers if necessary.

libc/upstream-openbsd/lib/libc/string/stpcpy.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: stpcpy.c,v 1.1 2012/01/17 02:48:01 guenther Exp $	*/
+/*	$OpenBSD: stpcpy.c,v 1.2 2014/07/09 17:08:21 naddy Exp $	*/
 
 /*
  * Copyright (c) 1988 Regents of the University of California.
@@ -33,7 +33,7 @@
 
 #if defined(APIWARN)
 __warn_references(stpcpy,
-    "warning: stpcpy() is dangerous GNU crap; don't use it");
+    "warning: stpcpy() is dangerous; do not use it");
 #endif
 
 char *

libc/upstream-openbsd/lib/libc/string/strcat.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: strcat.c,v 1.8 2005/08/08 08:05:37 espie Exp $	*/
+/*	$OpenBSD: strcat.c,v 1.9 2014/06/10 04:17:37 deraadt Exp $	*/
 
 /*
  * Copyright (c) 1988 Regents of the University of California.
@@ -29,11 +29,7 @@
  * SUCH DAMAGE.
  */
 
-#if !defined(_KERNEL) && !defined(_STANDALONE)
 #include <string.h>
-#else
-#include <lib/libkern/libkern.h>
-#endif
 
 #if defined(APIWARN)
 __warn_references(strcat,

libc/upstream-openbsd/lib/libc/string/strcmp.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: strcmp.c,v 1.7 2005/08/08 08:05:37 espie Exp $	*/
+/*	$OpenBSD: strcmp.c,v 1.8 2014/06/10 04:17:37 deraadt Exp $	*/
 
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
@@ -32,11 +32,7 @@
  * SUCH DAMAGE.
  */
 
-#if !defined(_KERNEL) && !defined(_STANDALONE)
 #include <string.h>
-#else
-#include <lib/libkern/libkern.h>
-#endif
 
 /*
  * Compare strings.

libc/upstream-openbsd/lib/libc/string/strcpy.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: strcpy.c,v 1.8 2005/08/08 08:05:37 espie Exp $	*/
+/*	$OpenBSD: strcpy.c,v 1.9 2014/06/10 04:17:37 deraadt Exp $	*/
 
 /*
  * Copyright (c) 1988 Regents of the University of California.
@@ -29,11 +29,7 @@
  * SUCH DAMAGE.
  */
 
-#if !defined(_KERNEL) && !defined(_STANDALONE)
 #include <string.h>
-#else
-#include <lib/libkern/libkern.h>
-#endif
 
 #if defined(APIWARN)
 __warn_references(strcpy,

libc/upstream-openbsd/lib/libc/string/strlen.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: strlen.c,v 1.7 2005/08/08 08:05:37 espie Exp $	*/
+/*	$OpenBSD: strlen.c,v 1.8 2014/06/10 04:17:37 deraadt Exp $	*/
 
 /*-
  * Copyright (c) 1990, 1993
@@ -29,11 +29,7 @@
  * SUCH DAMAGE.
  */
 
-#if !defined(_KERNEL) && !defined(_STANDALONE)
 #include <string.h>
-#else
-#include <lib/libkern/libkern.h>
-#endif
 
 size_t
 strlen(const char *str)

libc/upstream-openbsd/lib/libc/string/strncmp.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: strncmp.c,v 1.7 2005/08/08 08:05:37 espie Exp $	*/
+/*	$OpenBSD: strncmp.c,v 1.8 2014/06/10 04:17:37 deraadt Exp $	*/
 
 /*
  * Copyright (c) 1989 The Regents of the University of California.
@@ -29,11 +29,7 @@
  * SUCH DAMAGE.
  */
 
-#if !defined(_KERNEL) && !defined(_STANDALONE)
 #include <string.h>
-#else
-#include <lib/libkern/libkern.h>
-#endif
 
 int
 strncmp(const char *s1, const char *s2, size_t n)

libc/upstream-openbsd/lib/libc/string/strncpy.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: strncpy.c,v 1.6 2005/08/08 08:05:37 espie Exp $	*/
+/*	$OpenBSD: strncpy.c,v 1.7 2014/06/10 04:17:37 deraadt Exp $	*/
 
 /*-
  * Copyright (c) 1990 The Regents of the University of California.
@@ -32,11 +32,7 @@
  * SUCH DAMAGE.
  */
 
-#if !defined(_KERNEL) && !defined(_STANDALONE)
 #include <string.h>
-#else
-#include <lib/libkern/libkern.h>
-#endif
 
 /*
  * Copy src to dst, truncating or null-padding to always copy n bytes.