1/* BFD back-end for OSF/1 core files. 2 Copyright 1993, 1994, 1995, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006, 3 2007 Free Software Foundation, Inc. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 23/* This file can only be compiled on systems which use OSF/1 style 24 core files. */ 25 26#include "sysdep.h" 27#include "bfd.h" 28#include "libbfd.h" 29 30#include <sys/user.h> 31#ifdef OSF_CORE 32#include <sys/core.h> 33#endif 34 35/* forward declarations */ 36 37static asection *make_bfd_asection 38 PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr)); 39static const bfd_target *osf_core_core_file_p 40 PARAMS ((bfd *)); 41static char *osf_core_core_file_failing_command 42 PARAMS ((bfd *)); 43static int osf_core_core_file_failing_signal 44 PARAMS ((bfd *)); 45#define osf_core_core_file_matches_executable_p generic_core_file_matches_executable_p 46#define osf_core_core_file_pid _bfd_nocore_core_file_pid 47static void swap_abort 48 PARAMS ((void)); 49 50/* These are stored in the bfd's tdata */ 51 52struct osf_core_struct 53{ 54 int sig; 55 char cmd[MAXCOMLEN + 1]; 56}; 57 58#define core_hdr(bfd) ((bfd)->tdata.osf_core_data) 59#define core_signal(bfd) (core_hdr(bfd)->sig) 60#define core_command(bfd) (core_hdr(bfd)->cmd) 61 62static asection * 63make_bfd_asection (abfd, name, flags, size, vma, filepos) 64 bfd *abfd; 65 const char *name; 66 flagword flags; 67 bfd_size_type size; 68 bfd_vma vma; 69 file_ptr filepos; 70{ 71 asection *asect; 72 73 asect = bfd_make_section_anyway_with_flags (abfd, name, flags); 74 if (!asect) 75 return NULL; 76 77 asect->size = size; 78 asect->vma = vma; 79 asect->filepos = filepos; 80 asect->alignment_power = 8; 81 82 return asect; 83} 84 85static const bfd_target * 86osf_core_core_file_p (abfd) 87 bfd *abfd; 88{ 89 int val; 90 int i; 91 char *secname; 92 struct core_filehdr core_header; 93 bfd_size_type amt; 94 95 amt = sizeof core_header; 96 val = bfd_bread ((PTR) &core_header, amt, abfd); 97 if (val != sizeof core_header) 98 return NULL; 99 100 if (! CONST_STRNEQ (core_header.magic, "Core")) 101 return NULL; 102 103 core_hdr (abfd) = (struct osf_core_struct *) 104 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct osf_core_struct)); 105 if (!core_hdr (abfd)) 106 return NULL; 107 108 strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1); 109 core_signal (abfd) = core_header.signo; 110 111 for (i = 0; i < core_header.nscns; i++) 112 { 113 struct core_scnhdr core_scnhdr; 114 flagword flags; 115 116 amt = sizeof core_scnhdr; 117 val = bfd_bread ((PTR) &core_scnhdr, amt, abfd); 118 if (val != sizeof core_scnhdr) 119 break; 120 121 /* Skip empty sections. */ 122 if (core_scnhdr.size == 0 || core_scnhdr.scnptr == 0) 123 continue; 124 125 switch (core_scnhdr.scntype) 126 { 127 case SCNRGN: 128 secname = ".data"; 129 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; 130 break; 131 case SCNSTACK: 132 secname = ".stack"; 133 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; 134 break; 135 case SCNREGS: 136 secname = ".reg"; 137 flags = SEC_HAS_CONTENTS; 138 break; 139 default: 140 (*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"), 141 core_scnhdr.scntype); 142 continue; 143 } 144 145 if (!make_bfd_asection (abfd, secname, flags, 146 (bfd_size_type) core_scnhdr.size, 147 (bfd_vma) core_scnhdr.vaddr, 148 (file_ptr) core_scnhdr.scnptr)) 149 goto fail; 150 } 151 152 /* OK, we believe you. You're a core file (sure, sure). */ 153 154 return abfd->xvec; 155 156 fail: 157 bfd_release (abfd, core_hdr (abfd)); 158 core_hdr (abfd) = NULL; 159 bfd_section_list_clear (abfd); 160 return NULL; 161} 162 163static char * 164osf_core_core_file_failing_command (abfd) 165 bfd *abfd; 166{ 167 return core_command (abfd); 168} 169 170static int 171osf_core_core_file_failing_signal (abfd) 172 bfd *abfd; 173{ 174 return core_signal (abfd); 175} 176 177/* If somebody calls any byte-swapping routines, shoot them. */ 178static void 179swap_abort() 180{ 181 abort(); /* This way doesn't require any declaration for ANSI to fuck up */ 182} 183 184#define NO_GET ((bfd_vma (*) (const void *)) swap_abort) 185#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort) 186#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort) 187#define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort) 188#define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort) 189#define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort) 190 191const bfd_target osf_core_vec = 192 { 193 "osf-core", 194 bfd_target_unknown_flavour, 195 BFD_ENDIAN_LITTLE, /* target byte order */ 196 BFD_ENDIAN_LITTLE, /* target headers byte order */ 197 (HAS_RELOC | EXEC_P | /* object flags */ 198 HAS_LINENO | HAS_DEBUG | 199 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), 200 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ 201 0, /* symbol prefix */ 202 ' ', /* ar_pad_char */ 203 16, /* ar_max_namelen */ 204 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */ 205 NO_GET, NO_GETS, NO_PUT, /* 32 bit data */ 206 NO_GET, NO_GETS, NO_PUT, /* 16 bit data */ 207 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */ 208 NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */ 209 NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */ 210 211 { /* bfd_check_format */ 212 _bfd_dummy_target, /* unknown format */ 213 _bfd_dummy_target, /* object file */ 214 _bfd_dummy_target, /* archive */ 215 osf_core_core_file_p /* a core file */ 216 }, 217 { /* bfd_set_format */ 218 bfd_false, bfd_false, 219 bfd_false, bfd_false 220 }, 221 { /* bfd_write_contents */ 222 bfd_false, bfd_false, 223 bfd_false, bfd_false 224 }, 225 226 BFD_JUMP_TABLE_GENERIC (_bfd_generic), 227 BFD_JUMP_TABLE_COPY (_bfd_generic), 228 BFD_JUMP_TABLE_CORE (osf_core), 229 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), 230 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols), 231 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), 232 BFD_JUMP_TABLE_WRITE (_bfd_generic), 233 BFD_JUMP_TABLE_LINK (_bfd_nolink), 234 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 235 236 NULL, 237 238 (PTR) 0 /* backend_data */ 239 }; 240