zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libc/sysdeps/linux/cris/brk.c b/ap/build/uClibc/libc/sysdeps/linux/cris/brk.c
new file mode 100644
index 0000000..6c877bb
--- /dev/null
+++ b/ap/build/uClibc/libc/sysdeps/linux/cris/brk.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <errno.h>
+#include "sysdep.h"
+
+extern void * __curbrk attribute_hidden;
+extern int __init_brk (void) attribute_hidden;
+
+int brk(void * end_data_seg)
+{
+ if (__init_brk () == 0) {
+ /*
+ * Notice that we don't need to save/restore the GOT
+ * register since that is not call clobbered by the syscall.
+ */
+ __asm__ ("move.d %1,$r10\n\t"
+ "movu.w " STR(__NR_brk) ",$r9\n\t"
+ "break 13\n\t"
+ "move.d $r10, %0"
+ : "=r" (__curbrk)
+ : "g" (end_data_seg)
+ : "r9", "r10");
+
+ if (__curbrk == end_data_seg)
+ return 0;
+ __set_errno(ENOMEM);
+ }
+ return -1;
+
+}
+libc_hidden_def(brk)