[linux] Add command line arguments

Support qemu-like arguments for network setup:
--net driver_name[,setting=value]*

and global settings:
--settings setting=value[,setting=value]*

Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/include/hci/linux_args.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2010 Piotr Jaroszyński <p.jaroszynski@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _HCI_LINUX_ARGS_H
+#define _HCI_LINUX_ARGS_H
+
+FILE_LICENCE(GPL2_OR_LATER);
+
+/**
+ * Save argc and argv for later access.
+ *
+ * To be called by linuxprefix
+ */
+extern __asmcall void save_args(int argc, char **argv);
+
+#endif /* _HCI_LINUX_ARGS_H */