1 /* -*-C++-*- $NetBSD: load.h,v 1.6 2008/04/28 20:23:20 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _HPCBOOT_LOAD_H_ 33 #define _HPCBOOT_LOAD_H_ 34 35 #include <hpcboot.h> 36 #include <machine/endian_machdep.h> 37 38 #undef PAGE_LINK_DUMP // debug use only. if defined, you can't boot. 39 class Console; 40 class MemoryManager; 41 class File; 42 43 class Loader { 44 private: 45 struct PageTag *_pvec_prev, *_opvec_prev, *_pvec_clr; 46 paddr_t _pvec_clr_paddr; 47 int _nload_link, _n0clr_link; 48 size_t _tpsz; 49 struct PageTag *_load_page(vaddr_t, off_t, size_t, struct PageTag *); 50 BOOL _error; 51 52 protected: 53 BOOL _debug; 54 Console *&_cons; 55 MemoryManager *&_mem; 56 File *_file; 57 58 paddr_t _page_tag_start; 59 paddr_t _kernend; 60 61 Loader(Console *&, MemoryManager *&); 62 63 void _load_segment_start(void); 64 void _load_segment(vaddr_t, vsize_t, off_t, size_t); 65 void _load_memory(vaddr_t, vsize_t, void *); 66 void _load_segment_end(void); _load_success(void)67 BOOL _load_success(void) const { return !_error; }; 68 69 public: ~Loader(void)70 virtual ~Loader(void) { /* NO-OP */ } 71 setDebug(void)72 BOOL &setDebug(void) { return _debug; } 73 setFile(File * & file)74 virtual BOOL setFile(File *&file) { _file = file; return TRUE; } 75 virtual size_t memorySize(void) = 0; 76 virtual BOOL load(void) = 0; 77 virtual kaddr_t jumpAddr(void) = 0; 78 79 paddr_t tagStart(void); 80 BOOL loadExtData(void); 81 void loadEnd(void); 82 83 void tagDump(int); // for debug 84 85 static LoaderOps objectFormat(File &); 86 }; 87 88 #endif //_HPCBOOT_LOAD_H_ 89