zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/common/msync.c b/ap/build/uClibc/libc/sysdeps/linux/common/msync.c
new file mode 100644
index 0000000..844dbaa
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/common/msync.c
@@ -0,0 +1,45 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * msync() for uClibc
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#ifdef __NR_msync
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <sysdep-cancel.h>
+#else
+#define SINGLE_THREAD_P 1
+#endif
+
+#define __NR___syscall_msync __NR_msync
+static __always_inline _syscall3(int, __syscall_msync, void *, addr, size_t, length,
+ int, flags)
+
+extern __typeof(msync) __libc_msync;
+int __libc_msync(void * addr, size_t length, int flags)
+{
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype, result;
+#endif
+
+ if (SINGLE_THREAD_P)
+ return __syscall_msync(addr, length, flags);
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ oldtype = LIBC_CANCEL_ASYNC ();
+ result = __syscall_msync(addr, length, flags);
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
+#endif
+}
+weak_alias(__libc_msync,msync)
+
+#endif