zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/common/openat.c b/ap/build/uClibc/libc/sysdeps/linux/common/openat.c
new file mode 100644
index 0000000..8380ec6
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/common/openat.c
@@ -0,0 +1,25 @@
+/*
+ * openat() for uClibc
+ *
+ * Copyright (C) 2009 Analog Devices Inc.
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#define openat __xx_openat
+#include <sys/syscall.h>
+#include <fcntl.h>
+#undef openat
+
+#ifdef __NR_openat
+/* The openat() prototype is varargs based, but we don't care about that
+ * here, so need to provide our own dedicated signature.
+ */
+extern int openat(int fd, const char *file, int oflag, mode_t mode);
+libc_hidden_proto(openat)
+
+_syscall4(int, openat, int, fd, const char *, file, int, oflag, mode_t, mode)
+libc_hidden_def(openat)
+#else
+/* should add emulation with open() and /proc/self/fd/ ... */
+#endif