zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libpthread/nptl/pthread_key_create.c b/ap/build/uClibc/libpthread/nptl/pthread_key_create.c
new file mode 100644
index 0000000..be32517
--- /dev/null
+++ b/ap/build/uClibc/libpthread/nptl/pthread_key_create.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include "pthreadP.h"
+#include <atomic.h>
+
+
+int
+attribute_protected
+__pthread_key_create (
+ pthread_key_t *key,
+ void (*destr) (void *))
+{
+ /* Find a slot in __pthread_kyes which is unused. */
+ size_t cnt;
+ for (cnt = 0; cnt < PTHREAD_KEYS_MAX; ++cnt)
+ {
+ uintptr_t seq = __pthread_keys[cnt].seq;
+
+ if (KEY_UNUSED (seq) && KEY_USABLE (seq)
+ /* We found an unused slot. Try to allocate it. */
+ && ! atomic_compare_and_exchange_bool_acq (&__pthread_keys[cnt].seq,
+ seq + 1, seq))
+ {
+ /* Remember the destructor. */
+ __pthread_keys[cnt].destr = destr;
+
+ /* Return the key to the caller. */
+ *key = cnt;
+
+ /* The call succeeded. */
+ return 0;
+ }
+ }
+
+ return EAGAIN;
+}
+strong_alias (__pthread_key_create, pthread_key_create)
+strong_alias (__pthread_key_create, __pthread_key_create_internal)