| 1 | /* BFD back-end for Irix core files. |
| 2 | Copyright 1993, 1994, 1996, 1999, 2001 Free Software Foundation, Inc. |
| 3 | Written by Stu Grossman, Cygnus Support. |
| 4 | Converted to back-end form by Ian Lance Taylor, Cygnus Support |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | /* This file can only be compiled on systems which use Irix style core |
| 23 | files (namely, Irix 4 and Irix 5, so far). */ |
| 24 | |
| 25 | #include "bfd.h" |
| 26 | #include "sysdep.h" |
| 27 | #include "libbfd.h" |
| 28 | |
| 29 | #ifdef IRIX_CORE |
| 30 | |
| 31 | #include <core.out.h> |
| 32 | |
| 33 | struct sgi_core_struct |
| 34 | { |
| 35 | int sig; |
| 36 | char cmd[CORE_NAMESIZE]; |
| 37 | }; |
| 38 | |
| 39 | #define core_hdr(bfd) ((bfd)->tdata.sgi_core_data) |
| 40 | #define core_signal(bfd) (core_hdr(bfd)->sig) |
| 41 | #define core_command(bfd) (core_hdr(bfd)->cmd) |
| 42 | |
| 43 | static asection *make_bfd_asection |
| 44 | PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr)); |
| 45 | static const bfd_target *irix_core_core_file_p PARAMS ((bfd *)); |
| 46 | static char *irix_core_core_file_failing_command PARAMS ((bfd *)); |
| 47 | static int irix_core_core_file_failing_signal PARAMS ((bfd *)); |
| 48 | static boolean irix_core_core_file_matches_executable_p |
| 49 | PARAMS ((bfd *, bfd *)); |
| 50 | static asymbol *irix_core_make_empty_symbol PARAMS ((bfd *)); |
| 51 | static void swap_abort PARAMS ((void)); |
| 52 | |
| 53 | static asection * |
| 54 | make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos) |
| 55 | bfd *abfd; |
| 56 | const char *name; |
| 57 | flagword flags; |
| 58 | bfd_size_type _raw_size; |
| 59 | bfd_vma vma; |
| 60 | file_ptr filepos; |
| 61 | { |
| 62 | asection *asect; |
| 63 | |
| 64 | asect = bfd_make_section_anyway (abfd, name); |
| 65 | if (!asect) |
| 66 | return NULL; |
| 67 | |
| 68 | asect->flags = flags; |
| 69 | asect->_raw_size = _raw_size; |
| 70 | asect->vma = vma; |
| 71 | asect->filepos = filepos; |
| 72 | asect->alignment_power = 4; |
| 73 | |
| 74 | return asect; |
| 75 | } |
| 76 | |
| 77 | static const bfd_target * |
| 78 | irix_core_core_file_p (abfd) |
| 79 | bfd *abfd; |
| 80 | { |
| 81 | int val; |
| 82 | int i; |
| 83 | char *secname; |
| 84 | struct coreout coreout; |
| 85 | struct idesc *idg, *idf, *ids; |
| 86 | bfd_size_type amt; |
| 87 | |
| 88 | val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd); |
| 89 | if (val != sizeof coreout) |
| 90 | { |
| 91 | if (bfd_get_error () != bfd_error_system_call) |
| 92 | bfd_set_error (bfd_error_wrong_format); |
| 93 | return 0; |
| 94 | } |
| 95 | |
| 96 | #ifndef CORE_MAGICN32 |
| 97 | #define CORE_MAGICN32 CORE_MAGIC |
| 98 | #endif |
| 99 | if ((coreout.c_magic != CORE_MAGIC && coreout.c_magic != CORE_MAGICN32) |
| 100 | || coreout.c_version != CORE_VERSION1) |
| 101 | return 0; |
| 102 | |
| 103 | amt = sizeof (struct sgi_core_struct); |
| 104 | core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt); |
| 105 | if (!core_hdr (abfd)) |
| 106 | return NULL; |
| 107 | |
| 108 | strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE); |
| 109 | core_signal (abfd) = coreout.c_sigcause; |
| 110 | |
| 111 | if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0) |
| 112 | return NULL; |
| 113 | |
| 114 | for (i = 0; i < coreout.c_nvmap; i++) |
| 115 | { |
| 116 | struct vmap vmap; |
| 117 | |
| 118 | val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd); |
| 119 | if (val != sizeof vmap) |
| 120 | break; |
| 121 | |
| 122 | switch (vmap.v_type) |
| 123 | { |
| 124 | case VDATA: |
| 125 | secname = ".data"; |
| 126 | break; |
| 127 | case VSTACK: |
| 128 | secname = ".stack"; |
| 129 | break; |
| 130 | #ifdef VMAPFILE |
| 131 | case VMAPFILE: |
| 132 | secname = ".mapfile"; |
| 133 | break; |
| 134 | #endif |
| 135 | default: |
| 136 | continue; |
| 137 | } |
| 138 | |
| 139 | /* A file offset of zero means that the section is not contained |
| 140 | in the corefile. */ |
| 141 | if (vmap.v_offset == 0) |
| 142 | continue; |
| 143 | |
| 144 | if (!make_bfd_asection (abfd, secname, |
| 145 | SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS, |
| 146 | vmap.v_len, |
| 147 | vmap.v_vaddr, |
| 148 | vmap.v_offset)) |
| 149 | return NULL; |
| 150 | } |
| 151 | |
| 152 | /* Make sure that the regs are contiguous within the core file. */ |
| 153 | |
| 154 | idg = &coreout.c_idesc[I_GPREGS]; |
| 155 | idf = &coreout.c_idesc[I_FPREGS]; |
| 156 | ids = &coreout.c_idesc[I_SPECREGS]; |
| 157 | |
| 158 | if (idg->i_offset + idg->i_len != idf->i_offset |
| 159 | || idf->i_offset + idf->i_len != ids->i_offset) |
| 160 | return 0; /* Can't deal with non-contig regs */ |
| 161 | |
| 162 | if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0) |
| 163 | return NULL; |
| 164 | |
| 165 | make_bfd_asection (abfd, ".reg", |
| 166 | SEC_HAS_CONTENTS, |
| 167 | idg->i_len + idf->i_len + ids->i_len, |
| 168 | 0, |
| 169 | idg->i_offset); |
| 170 | |
| 171 | /* OK, we believe you. You're a core file (sure, sure). */ |
| 172 | bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0); |
| 173 | |
| 174 | return abfd->xvec; |
| 175 | } |
| 176 | |
| 177 | static char * |
| 178 | irix_core_core_file_failing_command (abfd) |
| 179 | bfd *abfd; |
| 180 | { |
| 181 | return core_command (abfd); |
| 182 | } |
| 183 | |
| 184 | static int |
| 185 | irix_core_core_file_failing_signal (abfd) |
| 186 | bfd *abfd; |
| 187 | { |
| 188 | return core_signal (abfd); |
| 189 | } |
| 190 | |
| 191 | static boolean |
| 192 | irix_core_core_file_matches_executable_p (core_bfd, exec_bfd) |
| 193 | bfd *core_bfd, *exec_bfd; |
| 194 | { |
| 195 | return true; /* XXX - FIXME */ |
| 196 | } |
| 197 | |
| 198 | static asymbol * |
| 199 | irix_core_make_empty_symbol (abfd) |
| 200 | bfd *abfd; |
| 201 | { |
| 202 | bfd_size_type amt = sizeof (asymbol); |
| 203 | asymbol *new = (asymbol *) bfd_zalloc (abfd, amt); |
| 204 | if (new) |
| 205 | new->the_bfd = abfd; |
| 206 | return new; |
| 207 | } |
| 208 | |
| 209 | #define irix_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound |
| 210 | #define irix_core_get_symtab _bfd_nosymbols_get_symtab |
| 211 | #define irix_core_print_symbol _bfd_nosymbols_print_symbol |
| 212 | #define irix_core_get_symbol_info _bfd_nosymbols_get_symbol_info |
| 213 | #define irix_core_bfd_is_local_label_name \ |
| 214 | _bfd_nosymbols_bfd_is_local_label_name |
| 215 | #define irix_core_get_lineno _bfd_nosymbols_get_lineno |
| 216 | #define irix_core_find_nearest_line _bfd_nosymbols_find_nearest_line |
| 217 | #define irix_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
| 218 | #define irix_core_read_minisymbols _bfd_nosymbols_read_minisymbols |
| 219 | #define irix_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol |
| 220 | |
| 221 | /* If somebody calls any byte-swapping routines, shoot them. */ |
| 222 | static void |
| 223 | swap_abort() |
| 224 | { |
| 225 | abort(); /* This way doesn't require any declaration for ANSI to fuck up */ |
| 226 | } |
| 227 | #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort ) |
| 228 | #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort ) |
| 229 | #define NO_SIGNED_GET \ |
| 230 | ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort ) |
| 231 | |
| 232 | const bfd_target irix_core_vec = |
| 233 | { |
| 234 | "irix-core", |
| 235 | bfd_target_unknown_flavour, |
| 236 | BFD_ENDIAN_BIG, /* target byte order */ |
| 237 | BFD_ENDIAN_BIG, /* target headers byte order */ |
| 238 | (HAS_RELOC | EXEC_P | /* object flags */ |
| 239 | HAS_LINENO | HAS_DEBUG | |
| 240 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| 241 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 242 | 0, /* symbol prefix */ |
| 243 | ' ', /* ar_pad_char */ |
| 244 | 16, /* ar_max_namelen */ |
| 245 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */ |
| 246 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */ |
| 247 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */ |
| 248 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */ |
| 249 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */ |
| 250 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */ |
| 251 | |
| 252 | { /* bfd_check_format */ |
| 253 | _bfd_dummy_target, /* unknown format */ |
| 254 | _bfd_dummy_target, /* object file */ |
| 255 | _bfd_dummy_target, /* archive */ |
| 256 | irix_core_core_file_p /* a core file */ |
| 257 | }, |
| 258 | { /* bfd_set_format */ |
| 259 | bfd_false, bfd_false, |
| 260 | bfd_false, bfd_false |
| 261 | }, |
| 262 | { /* bfd_write_contents */ |
| 263 | bfd_false, bfd_false, |
| 264 | bfd_false, bfd_false |
| 265 | }, |
| 266 | |
| 267 | BFD_JUMP_TABLE_GENERIC (_bfd_generic), |
| 268 | BFD_JUMP_TABLE_COPY (_bfd_generic), |
| 269 | BFD_JUMP_TABLE_CORE (irix_core), |
| 270 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), |
| 271 | BFD_JUMP_TABLE_SYMBOLS (irix_core), |
| 272 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), |
| 273 | BFD_JUMP_TABLE_WRITE (_bfd_generic), |
| 274 | BFD_JUMP_TABLE_LINK (_bfd_nolink), |
| 275 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 276 | |
| 277 | NULL, |
| 278 | |
| 279 | (PTR) 0 /* backend_data */ |
| 280 | }; |
| 281 | |
| 282 | #endif /* IRIX_CORE */ |