1 /* -*-C++-*- $NetBSD: load_elf.h,v 1.8 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_ELF_H_ 33 #define _HPCBOOT_LOAD_ELF_H_ 34 35 #include <exec_elf.h> 36 37 class ElfLoader : public Loader { 38 private: 39 Elf_Ehdr _eh; 40 Elf_Phdr *_ph; 41 Elf_Shdr *_sh; 42 43 struct _symbol_block { 44 BOOL enable; 45 char *header; 46 size_t header_size; 47 Elf_Shdr *shstr; 48 off_t stroff; 49 Elf_Shdr *shsym; 50 off_t symoff; 51 } _sym_blk; 52 is_elf_file(void)53 BOOL is_elf_file(void) { 54 return 55 _eh.e_ident[EI_MAG0] == ELFMAG0 && 56 _eh.e_ident[EI_MAG1] == ELFMAG1 && 57 _eh.e_ident[EI_MAG2] == ELFMAG2 && 58 _eh.e_ident[EI_MAG3] == ELFMAG3; 59 } 60 BOOL read_header(void); 61 struct PageTag *load_page(vaddr_t, off_t, size_t, struct PageTag *); 62 size_t symbol_block_size(void); 63 void load_symbol_block(vaddr_t); 64 65 public: 66 ElfLoader(Console *&, MemoryManager *&); 67 virtual ~ElfLoader(void); 68 69 BOOL setFile(File *&); 70 size_t memorySize(void); 71 BOOL load(void); 72 kaddr_t jumpAddr(void); 73 }; 74 75 #endif //_HPCBOOT_LOAD_ELF_H_ 76