Home | History | Annotate | Line # | Download | only in hpcboot
load.h revision 1.1 
      1 /* -*-C++-*-	$NetBSD: load.h,v 1.1 2001/02/09 18:34:44 uch Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _HPCBOOT_LOAD_H_
     40 #define _HPCBOOT_LOAD_H_
     41 
     42 #include <hpcboot.h>
     43 #include <machine/endian_machdep.h>
     44 
     45 #undef PAGE_LINK_DUMP	// debug use only. if defined, you can't boot.
     46 class Console;
     47 class MemoryManager;
     48 class File;
     49 
     50 class Loader {
     51 private:
     52 	struct PageTag *_pvec_prev, *_opvec_prev, *_pvec_clr;
     53 	paddr_t _pvec_clr_paddr;
     54 	int _nload_link, _n0clr_link;
     55 	size_t _tpsz;
     56 	struct PageTag *_load_page(vaddr_t, off_t, size_t, struct PageTag *);
     57 
     58 protected:
     59 	BOOL		_debug;
     60 	Console	*&_cons;
     61 	MemoryManager	*&_mem;
     62 	File		*_file;
     63 
     64 	paddr_t _page_tag_start;
     65 	paddr_t _kernend;
     66 
     67 	Loader(Console *&, MemoryManager *&);
     68 
     69 	void _load_segment_start(void);
     70 	void _load_segment(vaddr_t, vsize_t, off_t, size_t);
     71 	void _load_segment_end(void);
     72 
     73 public:
     74 	virtual ~Loader(void) { /* NO-OP */ }
     75 
     76 	BOOL &setDebug(void) { return _debug; }
     77 
     78 	virtual BOOL setFile(File *&file) { _file = file; return TRUE; }
     79 	virtual size_t memorySize(void) = 0;
     80 	virtual BOOL load(void) = 0;
     81 	virtual kaddr_t jumpAddr(void) = 0;
     82 
     83 	paddr_t tagStart(void);
     84 	void loadExtData(void);
     85 	void loadEnd(void);
     86 
     87 	void tagDump(int);	// for debug
     88 
     89 	static LoaderOps objectFormat(File &);
     90 };
     91 
     92 #endif //_HPCBOOT_LOAD_H_
     93