1 /* -*-C++-*- $NetBSD: load_elf.h,v 1.6 2004/08/06 18:33:09 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_ELF_H_ 40 #define _HPCBOOT_LOAD_ELF_H_ 41 42 #include <exec_elf.h> 43 44 class ElfLoader : public Loader { 45 private: 46 Elf_Ehdr _eh; 47 Elf_Phdr *_ph; 48 Elf_Shdr *_sh; 49 50 struct _symbol_block { 51 BOOL enable; 52 char *header; 53 size_t header_size; 54 Elf_Shdr *shstr; 55 off_t stroff; 56 Elf_Shdr *shsym; 57 off_t symoff; 58 } _sym_blk; 59 60 BOOL is_elf_file(void) { 61 return 62 _eh.e_ident[EI_MAG0] == ELFMAG0 && 63 _eh.e_ident[EI_MAG1] == ELFMAG1 && 64 _eh.e_ident[EI_MAG2] == ELFMAG2 && 65 _eh.e_ident[EI_MAG3] == ELFMAG3; 66 } 67 BOOL read_header(void); 68 struct PageTag *load_page(vaddr_t, off_t, size_t, struct PageTag *); 69 size_t symbol_block_size(void); 70 void load_symbol_block(vaddr_t); 71 72 public: 73 ElfLoader(Console *&, MemoryManager *&); 74 virtual ~ElfLoader(void); 75 76 BOOL setFile(File *&); 77 size_t memorySize(void); 78 BOOL load(void); 79 kaddr_t jumpAddr(void); 80 }; 81 82 #endif //_HPCBOOT_LOAD_ELF_H_ 83