zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/common/ppoll.c b/ap/build/uClibc/libc/sysdeps/linux/common/ppoll.c
new file mode 100644
index 0000000..09b2b15
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/common/ppoll.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
+
+ 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 <signal.h>
+#include <sys/syscall.h>
+#include <sys/poll.h>
+#define __need_NULL
+#include <stddef.h>
+
+#if defined __NR_ppoll && defined __UCLIBC_LINUX_SPECIFIC__
+# ifdef __UCLIBC_HAS_THREADS_NATIVE__
+# include <sysdep-cancel.h>
+# else
+# define SINGLE_THREAD_P 1
+# endif
+
+int
+ppoll(struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
+ const sigset_t *sigmask)
+{
+ /* The Linux kernel can in some situations update the timeout value.
+ We do not want that so use a local variable. */
+ struct timespec tval;
+ if (timeout != NULL) {
+ tval = *timeout;
+ timeout = &tval;
+ }
+ if (SINGLE_THREAD_P)
+ return INLINE_SYSCALL(ppoll, 5, fds, nfds, timeout, sigmask, _NSIG / 8);
+
+# ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype = LIBC_CANCEL_ASYNC ();
+ int result = INLINE_SYSCALL(ppoll, 5, fds, nfds, timeout, sigmask, _NSIG / 8);
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
+# endif
+}
+libc_hidden_def(ppoll)
+#endif