1 /* -*-C++-*- $NetBSD: load.h,v 1.3 2002/02/11 17:05:45 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 BOOL _error; 58 59 protected: 60 BOOL _debug; 61 Console *&_cons; 62 MemoryManager *&_mem; 63 File *_file; 64 65 paddr_t _page_tag_start; 66 paddr_t _kernend; 67 68 Loader(Console *&, MemoryManager *&); 69 70 void _load_segment_start(void); 71 void _load_segment(vaddr_t, vsize_t, off_t, size_t); 72 void _load_memory(vaddr_t, vsize_t, void *); 73 void _load_segment_end(void); 74 BOOL _load_success(void) const { return !_error; }; 75 76 public: 77 virtual ~Loader(void) { /* NO-OP */ } 78 79 BOOL &setDebug(void) { return _debug; } 80 81 virtual BOOL setFile(File *&file) { _file = file; return TRUE; } 82 virtual size_t memorySize(void) = 0; 83 virtual BOOL load(void) = 0; 84 virtual kaddr_t jumpAddr(void) = 0; 85 86 paddr_t tagStart(void); 87 BOOL loadExtData(void); 88 void loadEnd(void); 89 90 void tagDump(int); // for debug 91 92 static LoaderOps objectFormat(File &); 93 }; 94 95 #endif //_HPCBOOT_LOAD_H_ 96