linux: simple support for process input and output

llvm-svn: 128137
diff --git a/lldb/source/Plugins/Process/Linux/ProcessLinux.h b/lldb/source/Plugins/Process/Linux/ProcessLinux.h
index 18e5aa7..7335611 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessLinux.h
+++ b/lldb/source/Plugins/Process/Linux/ProcessLinux.h
@@ -138,6 +138,15 @@
     virtual lldb::addr_t
     GetImageInfoAddress();
 
+    virtual size_t
+    PutSTDIN(const char *buf, size_t len, lldb_private::Error &error);
+
+    virtual size_t
+    GetSTDOUT(char *buf, size_t len, lldb_private::Error &error);
+
+    virtual size_t
+    GetSTDERR(char *buf, size_t len, lldb_private::Error &error);
+
     //------------------------------------------------------------------
     // PluginInterface protocol
     //------------------------------------------------------------------