zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/mips/pipe.S b/ap/build/uClibc/libc/sysdeps/linux/mips/pipe.S
new file mode 100644
index 0000000..8b30236
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/mips/pipe.S
@@ -0,0 +1,45 @@
+/* pipe system call for Linux/MIPS */
+/*
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*see uClibc's sh/pipe.c and glibc-2.2.4's mips/pipe.S */
+
+#include <features.h>
+#include <sys/asm.h>
+#include <asm/unistd.h>
+#include <sys/regdef.h>
+
+ .globl pipe
+ .ent pipe, 0
+ .type pipe,@function
+pipe:
+#ifdef __PIC__
+ SETUP_GP
+#endif
+ li v0,__NR_pipe
+ syscall
+ bnez a3, 1f
+ sw v0, 0(a0)
+ sw v1, 4(a0)
+ li v0, 0
+ j ra
+1:
+ /* uClibc change -- start */
+ move a0,v0 /* Pass return val to C function. */
+ /* uClibc change -- stop */
+
+#ifdef __PIC__
+ SETUP_GP64(v0, pipe)
+ PTR_LA t9, __syscall_error
+ RESTORE_GP64
+ jr t9
+#else
+ j __syscall_error
+#endif
+1:
+ .end pipe
+ .size pipe,.-pipe
+libc_hidden_def(pipe)