zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/avr32/clone.c b/ap/build/uClibc/libc/sysdeps/linux/avr32/clone.c
new file mode 100644
index 0000000..06e3388
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/avr32/clone.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2004 Atmel Corporation
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License. See the file "COPYING.LIB" in the main directory of this
+ * archive for more details.
+ */
+#include <sched.h>
+#include <errno.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+/*
+ * I don't know if we can be absolutely certain that the fn and arg
+ * parameters are preserved when returning as the child. If the
+ * compiler stores them in registers (r0-r7), they should be.
+ */
+int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, ...)
+{
+ register int (*_fn)(void *arg) = fn;
+ register void *_arg = arg;
+ int err;
+
+ /* Sanity check the arguments */
+ err = -EINVAL;
+ if (!fn)
+ goto syscall_error;
+ if (!child_stack)
+ goto syscall_error;
+
+ err = INLINE_SYSCALL(clone, 2, flags, child_stack);
+ if (err < 0)
+ goto syscall_error;
+ else if (err != 0)
+ return err;
+
+ _exit(_fn(_arg));
+
+syscall_error:
+ __set_errno (-err);
+ return -1;
+}