bin_bfd.c revision 1.1.2.2
1 1.1.2.2 pgoyette /* $NetBSD: bin_bfd.c,v 1.1.2.2 2016/11/04 14:43:47 pgoyette Exp $ */ 2 1.1.2.2 pgoyette 3 1.1.2.2 pgoyette /* 4 1.1.2.2 pgoyette * Copyright (c) 1996, 2002 Christopher G. Demetriou 5 1.1.2.2 pgoyette * All rights reserved. 6 1.1.2.2 pgoyette * 7 1.1.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 pgoyette * modification, are permitted provided that the following conditions 9 1.1.2.2 pgoyette * are met: 10 1.1.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 pgoyette * documentation and/or other materials provided with the distribution. 15 1.1.2.2 pgoyette * 3. The name of the author may not be used to endorse or promote products 16 1.1.2.2 pgoyette * derived from this software without specific prior written permission. 17 1.1.2.2 pgoyette * 18 1.1.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 1.1.2.2 pgoyette * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 1.1.2.2 pgoyette * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 1.1.2.2 pgoyette * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 1.1.2.2 pgoyette * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 1.1.2.2 pgoyette * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 1.1.2.2 pgoyette * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 1.1.2.2 pgoyette * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 1.1.2.2 pgoyette * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 1.1.2.2 pgoyette * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 1.1.2.2 pgoyette * 29 1.1.2.2 pgoyette * <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>> 30 1.1.2.2 pgoyette */ 31 1.1.2.2 pgoyette 32 1.1.2.2 pgoyette #if HAVE_NBTOOL_CONFIG_H 33 1.1.2.2 pgoyette #include "nbtool_config.h" 34 1.1.2.2 pgoyette #endif 35 1.1.2.2 pgoyette 36 1.1.2.2 pgoyette #include <sys/cdefs.h> 37 1.1.2.2 pgoyette __RCSID("$NetBSD: bin_bfd.c,v 1.1.2.2 2016/11/04 14:43:47 pgoyette Exp $"); 38 1.1.2.2 pgoyette 39 1.1.2.2 pgoyette #include <stdio.h> 40 1.1.2.2 pgoyette #include <string.h> 41 1.1.2.2 pgoyette #include <stdlib.h> 42 1.1.2.2 pgoyette #include <err.h> 43 1.1.2.2 pgoyette #include <bfd.h> 44 1.1.2.2 pgoyette #include "bin.h" 45 1.1.2.2 pgoyette 46 1.1.2.2 pgoyette void * 47 1.1.2.2 pgoyette bin_open(int kfd, const char *kfile, const char *bfdname) 48 1.1.2.2 pgoyette { 49 1.1.2.2 pgoyette bfd *abfd; 50 1.1.2.2 pgoyette bfd_init(); 51 1.1.2.2 pgoyette if ((abfd = bfd_fdopenr(kfile, bfdname, kfd)) == NULL) { 52 1.1.2.2 pgoyette bfd_perror("open"); 53 1.1.2.2 pgoyette exit(1); 54 1.1.2.2 pgoyette } 55 1.1.2.2 pgoyette if (!bfd_check_format(abfd, bfd_object)) { 56 1.1.2.2 pgoyette bfd_perror("check format"); 57 1.1.2.2 pgoyette exit(1); 58 1.1.2.2 pgoyette } 59 1.1.2.2 pgoyette return abfd; 60 1.1.2.2 pgoyette } 61 1.1.2.2 pgoyette 62 1.1.2.2 pgoyette int 63 1.1.2.2 pgoyette bin_find_md_root(void *bin, const char *mappedkfile, off_t size, 64 1.1.2.2 pgoyette unsigned long text_start, 65 1.1.2.2 pgoyette const char *root_name, const char *size_name, size_t *md_root_offset, 66 1.1.2.2 pgoyette size_t *md_root_size_offset, uint32_t *md_root_size, int verbose) 67 1.1.2.2 pgoyette { 68 1.1.2.2 pgoyette bfd *abfd = bin; 69 1.1.2.2 pgoyette long i; 70 1.1.2.2 pgoyette long storage_needed; 71 1.1.2.2 pgoyette long number_of_symbols; 72 1.1.2.2 pgoyette asymbol **symbol_table = NULL; 73 1.1.2.2 pgoyette struct symbols { 74 1.1.2.2 pgoyette const char *name; 75 1.1.2.2 pgoyette size_t offset; 76 1.1.2.2 pgoyette } *s, symbols[3]; 77 1.1.2.2 pgoyette 78 1.1.2.2 pgoyette symbols[0].name = root_name; 79 1.1.2.2 pgoyette symbols[1].name = size_name; 80 1.1.2.2 pgoyette symbols[2].name = NULL; 81 1.1.2.2 pgoyette 82 1.1.2.2 pgoyette storage_needed = bfd_get_symtab_upper_bound(abfd); 83 1.1.2.2 pgoyette if (storage_needed <= 0) { 84 1.1.2.2 pgoyette warnx("bfd storage needed error"); 85 1.1.2.2 pgoyette return 1; 86 1.1.2.2 pgoyette } 87 1.1.2.2 pgoyette 88 1.1.2.2 pgoyette symbol_table = malloc(storage_needed); 89 1.1.2.2 pgoyette if (symbol_table == NULL) { 90 1.1.2.2 pgoyette warn("symbol table"); 91 1.1.2.2 pgoyette return 1; 92 1.1.2.2 pgoyette } 93 1.1.2.2 pgoyette 94 1.1.2.2 pgoyette number_of_symbols = bfd_canonicalize_symtab(abfd, symbol_table); 95 1.1.2.2 pgoyette if (number_of_symbols <= 0) { 96 1.1.2.2 pgoyette warnx("can't canonicalize symbol table"); 97 1.1.2.2 pgoyette free(symbol_table); 98 1.1.2.2 pgoyette return 1; 99 1.1.2.2 pgoyette } 100 1.1.2.2 pgoyette 101 1.1.2.2 pgoyette for (i = 0; i < number_of_symbols; i++) { 102 1.1.2.2 pgoyette for (s = symbols; s->name != NULL; s++) { 103 1.1.2.2 pgoyette const char *sym = symbol_table[i]->name; 104 1.1.2.2 pgoyette 105 1.1.2.2 pgoyette /* 106 1.1.2.2 pgoyette * match symbol prefix '_' or ''. 107 1.1.2.2 pgoyette */ 108 1.1.2.2 pgoyette if (!strcmp(s->name, sym) || 109 1.1.2.2 pgoyette !strcmp(s->name + 1, sym)) { 110 1.1.2.2 pgoyette s->offset = 111 1.1.2.2 pgoyette (size_t)(symbol_table[i]->section->filepos 112 1.1.2.2 pgoyette + symbol_table[i]->value); 113 1.1.2.2 pgoyette } 114 1.1.2.2 pgoyette } 115 1.1.2.2 pgoyette } 116 1.1.2.2 pgoyette 117 1.1.2.2 pgoyette free(symbol_table); 118 1.1.2.2 pgoyette 119 1.1.2.2 pgoyette for (s = symbols; s->name != NULL; s++) { 120 1.1.2.2 pgoyette if (s->offset == 0) { 121 1.1.2.2 pgoyette warnx("missing offset for `%s'", s->name); 122 1.1.2.2 pgoyette return 1; 123 1.1.2.2 pgoyette } 124 1.1.2.2 pgoyette } 125 1.1.2.2 pgoyette 126 1.1.2.2 pgoyette *md_root_offset = symbols[0].offset; 127 1.1.2.2 pgoyette *md_root_size_offset = symbols[1].offset; 128 1.1.2.2 pgoyette *md_root_size = bfd_get_32(abfd, &mappedkfile[*md_root_size_offset]); 129 1.1.2.2 pgoyette 130 1.1.2.2 pgoyette return 0; 131 1.1.2.2 pgoyette } 132 1.1.2.2 pgoyette 133 1.1.2.2 pgoyette void 134 1.1.2.2 pgoyette bin_put_32(void *bin, off_t size, char *buf) 135 1.1.2.2 pgoyette { 136 1.1.2.2 pgoyette bfd_put_32((struct bfd *)bin, size, buf); 137 1.1.2.2 pgoyette } 138 1.1.2.2 pgoyette 139 1.1.2.2 pgoyette void 140 1.1.2.2 pgoyette bin_close(void *bin) 141 1.1.2.2 pgoyette { 142 1.1.2.2 pgoyette bfd_close_all_done((struct bfd *)bin); 143 1.1.2.2 pgoyette } 144 1.1.2.2 pgoyette 145 1.1.2.2 pgoyette const char ** 146 1.1.2.2 pgoyette bin_supported_targets(void) 147 1.1.2.2 pgoyette { 148 1.1.2.2 pgoyette return bfd_target_list(); 149 1.1.2.2 pgoyette } 150
Indexes created Wed Apr 29 00:23:26 UTC 2026