| 1 | /* Mach-O support for BFD. |
| 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004 |
| 3 | 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "mach-o.h" |
| 22 | #include "bfd.h" |
| 23 | #include "sysdep.h" |
| 24 | #include "libbfd.h" |
| 25 | #include "libiberty.h" |
| 26 | #include <ctype.h> |
| 27 | |
| 28 | #ifndef BFD_IO_FUNCS |
| 29 | #define BFD_IO_FUNCS 0 |
| 30 | #endif |
| 31 | |
| 32 | #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive |
| 33 | #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr |
| 34 | #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap |
| 35 | #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table |
| 36 | #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table |
| 37 | #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname |
| 38 | #define bfd_mach_o_write_armap _bfd_noarchive_write_armap |
| 39 | #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index |
| 40 | #define bfd_mach_o_generic_stat_arch_elt _bfd_noarchive_generic_stat_arch_elt |
| 41 | #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp |
| 42 | #define bfd_mach_o_close_and_cleanup _bfd_generic_close_and_cleanup |
| 43 | #define bfd_mach_o_bfd_free_cached_info _bfd_generic_bfd_free_cached_info |
| 44 | #define bfd_mach_o_new_section_hook _bfd_generic_new_section_hook |
| 45 | #define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window |
| 46 | #define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name |
| 47 | #define bfd_mach_o_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) |
| 48 | #define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name |
| 49 | #define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno |
| 50 | #define bfd_mach_o_find_nearest_line _bfd_nosymbols_find_nearest_line |
| 51 | #define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol |
| 52 | #define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols |
| 53 | #define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol |
| 54 | #define bfd_mach_o_get_reloc_upper_bound _bfd_norelocs_get_reloc_upper_bound |
| 55 | #define bfd_mach_o_canonicalize_reloc _bfd_norelocs_canonicalize_reloc |
| 56 | #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup |
| 57 | #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents |
| 58 | #define bfd_mach_o_bfd_relax_section bfd_generic_relax_section |
| 59 | #define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create |
| 60 | #define bfd_mach_o_bfd_link_hash_table_free _bfd_generic_link_hash_table_free |
| 61 | #define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols |
| 62 | #define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms |
| 63 | #define bfd_mach_o_bfd_final_link _bfd_generic_final_link |
| 64 | #define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section |
| 65 | #define bfd_mach_o_set_arch_mach bfd_default_set_arch_mach |
| 66 | #define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data |
| 67 | #define bfd_mach_o_bfd_set_private_flags _bfd_generic_bfd_set_private_flags |
| 68 | #define bfd_mach_o_bfd_print_private_bfd_data _bfd_generic_bfd_print_private_bfd_data |
| 69 | #define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents |
| 70 | #define bfd_mach_o_set_section_contents _bfd_generic_set_section_contents |
| 71 | #define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections |
| 72 | #define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections |
| 73 | #define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section |
| 74 | #define bfd_mach_o_bfd_discard_group bfd_generic_discard_group |
| 75 | #define bfd_mach_o_section_already_linked \ |
| 76 | _bfd_generic_section_already_linked |
| 77 | #define bfd_mach_o_bfd_copy_private_header_data _bfd_generic_bfd_copy_private_header_data |
| 78 | |
| 79 | static bfd_boolean bfd_mach_o_bfd_copy_private_symbol_data |
| 80 | PARAMS ((bfd *, asymbol *, bfd *, asymbol *)); |
| 81 | static bfd_boolean bfd_mach_o_bfd_copy_private_section_data |
| 82 | PARAMS ((bfd *, asection *, bfd *, asection *)); |
| 83 | static bfd_boolean bfd_mach_o_bfd_copy_private_bfd_data |
| 84 | PARAMS ((bfd *, bfd *)); |
| 85 | static long bfd_mach_o_count_symbols |
| 86 | PARAMS ((bfd *)); |
| 87 | static long bfd_mach_o_get_symtab_upper_bound |
| 88 | PARAMS ((bfd *)); |
| 89 | static long bfd_mach_o_canonicalize_symtab |
| 90 | PARAMS ((bfd *, asymbol **)); |
| 91 | static void bfd_mach_o_get_symbol_info |
| 92 | PARAMS ((bfd *, asymbol *, symbol_info *)); |
| 93 | static void bfd_mach_o_print_symbol |
| 94 | PARAMS ((bfd *, PTR, asymbol *, bfd_print_symbol_type)); |
| 95 | static void bfd_mach_o_convert_architecture |
| 96 | PARAMS ((bfd_mach_o_cpu_type, bfd_mach_o_cpu_subtype, |
| 97 | enum bfd_architecture *, unsigned long *)); |
| 98 | static bfd_boolean bfd_mach_o_write_contents |
| 99 | PARAMS ((bfd *)); |
| 100 | static int bfd_mach_o_sizeof_headers |
| 101 | PARAMS ((bfd *, bfd_boolean)); |
| 102 | static asymbol * bfd_mach_o_make_empty_symbol |
| 103 | PARAMS ((bfd *)); |
| 104 | static int bfd_mach_o_write_header |
| 105 | PARAMS ((bfd *, bfd_mach_o_header *)); |
| 106 | static int bfd_mach_o_read_header |
| 107 | PARAMS ((bfd *, bfd_mach_o_header *)); |
| 108 | static asection * bfd_mach_o_make_bfd_section |
| 109 | PARAMS ((bfd *, bfd_mach_o_section *)); |
| 110 | static int bfd_mach_o_scan_read_section |
| 111 | PARAMS ((bfd *, bfd_mach_o_section *, bfd_vma)); |
| 112 | static int bfd_mach_o_scan_write_section |
| 113 | PARAMS ((bfd *, bfd_mach_o_section *, bfd_vma)); |
| 114 | static int bfd_mach_o_scan_write_symtab_symbols |
| 115 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 116 | static int bfd_mach_o_scan_write_thread |
| 117 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 118 | static int bfd_mach_o_scan_read_dylinker |
| 119 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 120 | static int bfd_mach_o_scan_read_dylib |
| 121 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 122 | static int bfd_mach_o_scan_read_prebound_dylib |
| 123 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 124 | static int bfd_mach_o_scan_read_thread |
| 125 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 126 | static int bfd_mach_o_scan_write_symtab |
| 127 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 128 | static int bfd_mach_o_scan_read_dysymtab |
| 129 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 130 | static int bfd_mach_o_scan_read_symtab |
| 131 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 132 | static int bfd_mach_o_scan_read_segment |
| 133 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 134 | static int bfd_mach_o_scan_write_segment |
| 135 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 136 | static int bfd_mach_o_scan_read_command |
| 137 | PARAMS ((bfd *, bfd_mach_o_load_command *)); |
| 138 | static void bfd_mach_o_flatten_sections |
| 139 | PARAMS ((bfd *)); |
| 140 | static const char * bfd_mach_o_i386_flavour_string |
| 141 | PARAMS ((unsigned int)); |
| 142 | static const char * bfd_mach_o_ppc_flavour_string |
| 143 | PARAMS ((unsigned int)); |
| 144 | |
| 145 | /* The flags field of a section structure is separated into two parts a section |
| 146 | type and section attributes. The section types are mutually exclusive (it |
| 147 | can only have one type) but the section attributes are not (it may have more |
| 148 | than one attribute). */ |
| 149 | |
| 150 | #define SECTION_TYPE 0x000000ff /* 256 section types. */ |
| 151 | #define SECTION_ATTRIBUTES 0xffffff00 /* 24 section attributes. */ |
| 152 | |
| 153 | /* Constants for the section attributes part of the flags field of a section |
| 154 | structure. */ |
| 155 | |
| 156 | #define SECTION_ATTRIBUTES_USR 0xff000000 /* User-settable attributes. */ |
| 157 | #define S_ATTR_PURE_INSTRUCTIONS 0x80000000 /* Section contains only true machine instructions. */ |
| 158 | #define SECTION_ATTRIBUTES_SYS 0x00ffff00 /* System setable attributes. */ |
| 159 | #define S_ATTR_SOME_INSTRUCTIONS 0x00000400 /* Section contains some machine instructions. */ |
| 160 | #define S_ATTR_EXT_RELOC 0x00000200 /* Section has external relocation entries. */ |
| 161 | #define S_ATTR_LOC_RELOC 0x00000100 /* Section has local relocation entries. */ |
| 162 | |
| 163 | #define N_STAB 0xe0 |
| 164 | #define N_TYPE 0x1e |
| 165 | #define N_EXT 0x01 |
| 166 | #define N_UNDF 0x0 |
| 167 | #define N_ABS 0x2 |
| 168 | #define N_SECT 0xe |
| 169 | #define N_INDR 0xa |
| 170 | |
| 171 | bfd_boolean |
| 172 | bfd_mach_o_valid (abfd) |
| 173 | bfd *abfd; |
| 174 | { |
| 175 | if (abfd == NULL || abfd->xvec == NULL) |
| 176 | return 0; |
| 177 | |
| 178 | if (! ((abfd->xvec == &mach_o_be_vec) |
| 179 | || (abfd->xvec == &mach_o_le_vec) |
| 180 | || (abfd->xvec == &mach_o_fat_vec))) |
| 181 | return 0; |
| 182 | |
| 183 | if (abfd->tdata.mach_o_data == NULL) |
| 184 | return 0; |
| 185 | return 1; |
| 186 | } |
| 187 | |
| 188 | /* Copy any private info we understand from the input symbol |
| 189 | to the output symbol. */ |
| 190 | |
| 191 | static bfd_boolean |
| 192 | bfd_mach_o_bfd_copy_private_symbol_data (ibfd, isymbol, obfd, osymbol) |
| 193 | bfd *ibfd ATTRIBUTE_UNUSED; |
| 194 | asymbol *isymbol ATTRIBUTE_UNUSED; |
| 195 | bfd *obfd ATTRIBUTE_UNUSED; |
| 196 | asymbol *osymbol ATTRIBUTE_UNUSED; |
| 197 | { |
| 198 | return TRUE; |
| 199 | } |
| 200 | |
| 201 | /* Copy any private info we understand from the input section |
| 202 | to the output section. */ |
| 203 | |
| 204 | static bfd_boolean |
| 205 | bfd_mach_o_bfd_copy_private_section_data (ibfd, isection, obfd, osection) |
| 206 | bfd *ibfd ATTRIBUTE_UNUSED; |
| 207 | asection *isection ATTRIBUTE_UNUSED; |
| 208 | bfd *obfd ATTRIBUTE_UNUSED; |
| 209 | asection *osection ATTRIBUTE_UNUSED; |
| 210 | { |
| 211 | return TRUE; |
| 212 | } |
| 213 | |
| 214 | /* Copy any private info we understand from the input bfd |
| 215 | to the output bfd. */ |
| 216 | |
| 217 | static bfd_boolean |
| 218 | bfd_mach_o_bfd_copy_private_bfd_data (ibfd, obfd) |
| 219 | bfd *ibfd; |
| 220 | bfd *obfd; |
| 221 | { |
| 222 | BFD_ASSERT (bfd_mach_o_valid (ibfd)); |
| 223 | BFD_ASSERT (bfd_mach_o_valid (obfd)); |
| 224 | |
| 225 | obfd->tdata.mach_o_data = ibfd->tdata.mach_o_data; |
| 226 | obfd->tdata.mach_o_data->ibfd = ibfd; |
| 227 | return TRUE; |
| 228 | } |
| 229 | |
| 230 | static long |
| 231 | bfd_mach_o_count_symbols (abfd) |
| 232 | bfd *abfd; |
| 233 | { |
| 234 | bfd_mach_o_data_struct *mdata = NULL; |
| 235 | long nsyms = 0; |
| 236 | unsigned long i; |
| 237 | |
| 238 | BFD_ASSERT (bfd_mach_o_valid (abfd)); |
| 239 | mdata = abfd->tdata.mach_o_data; |
| 240 | |
| 241 | for (i = 0; i < mdata->header.ncmds; i++) |
| 242 | if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB) |
| 243 | { |
| 244 | bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab; |
| 245 | nsyms += sym->nsyms; |
| 246 | } |
| 247 | |
| 248 | return nsyms; |
| 249 | } |
| 250 | |
| 251 | static long |
| 252 | bfd_mach_o_get_symtab_upper_bound (abfd) |
| 253 | bfd *abfd; |
| 254 | { |
| 255 | long nsyms = bfd_mach_o_count_symbols (abfd); |
| 256 | |
| 257 | if (nsyms < 0) |
| 258 | return nsyms; |
| 259 | |
| 260 | return ((nsyms + 1) * sizeof (asymbol *)); |
| 261 | } |
| 262 | |
| 263 | static long |
| 264 | bfd_mach_o_canonicalize_symtab (abfd, alocation) |
| 265 | bfd *abfd; |
| 266 | asymbol **alocation; |
| 267 | { |
| 268 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; |
| 269 | long nsyms = bfd_mach_o_count_symbols (abfd); |
| 270 | asymbol **csym = alocation; |
| 271 | unsigned long i, j; |
| 272 | |
| 273 | if (nsyms < 0) |
| 274 | return nsyms; |
| 275 | |
| 276 | for (i = 0; i < mdata->header.ncmds; i++) |
| 277 | { |
| 278 | if (mdata->commands[i].type == BFD_MACH_O_LC_SYMTAB) |
| 279 | { |
| 280 | bfd_mach_o_symtab_command *sym = &mdata->commands[i].command.symtab; |
| 281 | |
| 282 | if (bfd_mach_o_scan_read_symtab_symbols (abfd, &mdata->commands[i].command.symtab) != 0) |
| 283 | { |
| 284 | fprintf (stderr, "bfd_mach_o_canonicalize_symtab: unable to load symbols for section %lu\n", i); |
| 285 | return 0; |
| 286 | } |
| 287 | |
| 288 | BFD_ASSERT (sym->symbols != NULL); |
| 289 | |
| 290 | for (j = 0; j < sym->nsyms; j++) |
| 291 | { |
| 292 | BFD_ASSERT (csym < (alocation + nsyms)); |
| 293 | *csym++ = &sym->symbols[j]; |
| 294 | } |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | *csym++ = NULL; |
| 299 | |
| 300 | return nsyms; |
| 301 | } |
| 302 | |
| 303 | static void |
| 304 | bfd_mach_o_get_symbol_info (abfd, symbol, ret) |
| 305 | bfd *abfd ATTRIBUTE_UNUSED; |
| 306 | asymbol *symbol; |
| 307 | symbol_info *ret; |
| 308 | { |
| 309 | bfd_symbol_info (symbol, ret); |
| 310 | } |
| 311 | |
| 312 | static void |
| 313 | bfd_mach_o_print_symbol (abfd, afile, symbol, how) |
| 314 | bfd *abfd; |
| 315 | PTR afile; |
| 316 | asymbol *symbol; |
| 317 | bfd_print_symbol_type how; |
| 318 | { |
| 319 | FILE *file = (FILE *) afile; |
| 320 | |
| 321 | switch (how) |
| 322 | { |
| 323 | case bfd_print_symbol_name: |
| 324 | fprintf (file, "%s", symbol->name); |
| 325 | break; |
| 326 | default: |
| 327 | bfd_print_symbol_vandf (abfd, (PTR) file, symbol); |
| 328 | fprintf (file, " %-5s %s", symbol->section->name, symbol->name); |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | static void |
| 333 | bfd_mach_o_convert_architecture (mtype, msubtype, type, subtype) |
| 334 | bfd_mach_o_cpu_type mtype; |
| 335 | bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED; |
| 336 | enum bfd_architecture *type; |
| 337 | unsigned long *subtype; |
| 338 | { |
| 339 | *subtype = bfd_arch_unknown; |
| 340 | |
| 341 | switch (mtype) |
| 342 | { |
| 343 | case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break; |
| 344 | case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break; |
| 345 | case BFD_MACH_O_CPU_TYPE_I386: *type = bfd_arch_i386; break; |
| 346 | case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break; |
| 347 | case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break; |
| 348 | case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break; |
| 349 | case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break; |
| 350 | case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break; |
| 351 | case BFD_MACH_O_CPU_TYPE_SPARC: *type = bfd_arch_sparc; break; |
| 352 | case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break; |
| 353 | case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break; |
| 354 | case BFD_MACH_O_CPU_TYPE_POWERPC: *type = bfd_arch_powerpc; break; |
| 355 | default: *type = bfd_arch_unknown; break; |
| 356 | } |
| 357 | |
| 358 | switch (*type) |
| 359 | { |
| 360 | case bfd_arch_i386: *subtype = bfd_mach_i386_i386; break; |
| 361 | case bfd_arch_sparc: *subtype = bfd_mach_sparc; break; |
| 362 | default: |
| 363 | *subtype = bfd_arch_unknown; |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | static bfd_boolean |
| 368 | bfd_mach_o_write_contents (abfd) |
| 369 | bfd *abfd; |
| 370 | { |
| 371 | unsigned int i; |
| 372 | asection *s; |
| 373 | |
| 374 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; |
| 375 | |
| 376 | /* Write data sections first in case they overlap header data to be |
| 377 | written later. */ |
| 378 | |
| 379 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
| 380 | ; |
| 381 | |
| 382 | #if 0 |
| 383 | for (i = 0; i < mdata->header.ncmds; i++) |
| 384 | { |
| 385 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
| 386 | if (cur->type != BFD_MACH_O_LC_SEGMENT) |
| 387 | break; |
| 388 | |
| 389 | { |
| 390 | bfd_mach_o_segment_command *seg = &cur->command.segment; |
| 391 | char buf[1024]; |
| 392 | bfd_vma nbytes = seg->filesize; |
| 393 | bfd_vma curoff = seg->fileoff; |
| 394 | |
| 395 | while (nbytes > 0) |
| 396 | { |
| 397 | bfd_vma thisread = nbytes; |
| 398 | |
| 399 | if (thisread > 1024) |
| 400 | thisread = 1024; |
| 401 | |
| 402 | bfd_seek (abfd, curoff, SEEK_SET); |
| 403 | if (bfd_bread ((PTR) buf, thisread, abfd) != thisread) |
| 404 | return FALSE; |
| 405 | |
| 406 | bfd_seek (abfd, curoff, SEEK_SET); |
| 407 | if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread) |
| 408 | return FALSE; |
| 409 | |
| 410 | nbytes -= thisread; |
| 411 | curoff += thisread; |
| 412 | } |
| 413 | } |
| 414 | } |
| 415 | #endif |
| 416 | |
| 417 | /* Now write header information. */ |
| 418 | if (bfd_mach_o_write_header (abfd, &mdata->header) != 0) |
| 419 | return FALSE; |
| 420 | |
| 421 | for (i = 0; i < mdata->header.ncmds; i++) |
| 422 | { |
| 423 | unsigned char buf[8]; |
| 424 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
| 425 | unsigned long typeflag; |
| 426 | |
| 427 | typeflag = cur->type_required ? cur->type & BFD_MACH_O_LC_REQ_DYLD : cur->type; |
| 428 | |
| 429 | bfd_h_put_32 (abfd, typeflag, buf); |
| 430 | bfd_h_put_32 (abfd, cur->len, buf + 4); |
| 431 | |
| 432 | bfd_seek (abfd, cur->offset, SEEK_SET); |
| 433 | if (bfd_bwrite ((PTR) buf, 8, abfd) != 8) |
| 434 | return FALSE; |
| 435 | |
| 436 | switch (cur->type) |
| 437 | { |
| 438 | case BFD_MACH_O_LC_SEGMENT: |
| 439 | if (bfd_mach_o_scan_write_segment (abfd, cur) != 0) |
| 440 | return FALSE; |
| 441 | break; |
| 442 | case BFD_MACH_O_LC_SYMTAB: |
| 443 | if (bfd_mach_o_scan_write_symtab (abfd, cur) != 0) |
| 444 | return FALSE; |
| 445 | break; |
| 446 | case BFD_MACH_O_LC_SYMSEG: |
| 447 | break; |
| 448 | case BFD_MACH_O_LC_THREAD: |
| 449 | case BFD_MACH_O_LC_UNIXTHREAD: |
| 450 | if (bfd_mach_o_scan_write_thread (abfd, cur) != 0) |
| 451 | return FALSE; |
| 452 | break; |
| 453 | case BFD_MACH_O_LC_LOADFVMLIB: |
| 454 | case BFD_MACH_O_LC_IDFVMLIB: |
| 455 | case BFD_MACH_O_LC_IDENT: |
| 456 | case BFD_MACH_O_LC_FVMFILE: |
| 457 | case BFD_MACH_O_LC_PREPAGE: |
| 458 | case BFD_MACH_O_LC_DYSYMTAB: |
| 459 | case BFD_MACH_O_LC_LOAD_DYLIB: |
| 460 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
| 461 | case BFD_MACH_O_LC_ID_DYLIB: |
| 462 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
| 463 | case BFD_MACH_O_LC_ID_DYLINKER: |
| 464 | case BFD_MACH_O_LC_PREBOUND_DYLIB: |
| 465 | case BFD_MACH_O_LC_ROUTINES: |
| 466 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
| 467 | break; |
| 468 | default: |
| 469 | fprintf (stderr, |
| 470 | "unable to write unknown load command 0x%lx\n", |
| 471 | (long) cur->type); |
| 472 | return FALSE; |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | return TRUE; |
| 477 | } |
| 478 | |
| 479 | static int |
| 480 | bfd_mach_o_sizeof_headers (a, b) |
| 481 | bfd *a ATTRIBUTE_UNUSED; |
| 482 | bfd_boolean b ATTRIBUTE_UNUSED; |
| 483 | { |
| 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | /* Make an empty symbol. This is required only because |
| 488 | bfd_make_section_anyway wants to create a symbol for the section. */ |
| 489 | |
| 490 | static asymbol * |
| 491 | bfd_mach_o_make_empty_symbol (abfd) |
| 492 | bfd *abfd; |
| 493 | { |
| 494 | asymbol *new; |
| 495 | |
| 496 | new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol)); |
| 497 | if (new == NULL) |
| 498 | return new; |
| 499 | new->the_bfd = abfd; |
| 500 | return new; |
| 501 | } |
| 502 | |
| 503 | static int |
| 504 | bfd_mach_o_write_header (abfd, header) |
| 505 | bfd *abfd; |
| 506 | bfd_mach_o_header *header; |
| 507 | { |
| 508 | unsigned char buf[28]; |
| 509 | |
| 510 | bfd_h_put_32 (abfd, header->magic, buf + 0); |
| 511 | bfd_h_put_32 (abfd, header->cputype, buf + 4); |
| 512 | bfd_h_put_32 (abfd, header->cpusubtype, buf + 8); |
| 513 | bfd_h_put_32 (abfd, header->filetype, buf + 12); |
| 514 | bfd_h_put_32 (abfd, header->ncmds, buf + 16); |
| 515 | bfd_h_put_32 (abfd, header->sizeofcmds, buf + 20); |
| 516 | bfd_h_put_32 (abfd, header->flags, buf + 24); |
| 517 | |
| 518 | bfd_seek (abfd, 0, SEEK_SET); |
| 519 | if (bfd_bwrite ((PTR) buf, 28, abfd) != 28) |
| 520 | return -1; |
| 521 | |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | static int |
| 526 | bfd_mach_o_read_header (abfd, header) |
| 527 | bfd *abfd; |
| 528 | bfd_mach_o_header *header; |
| 529 | { |
| 530 | unsigned char buf[28]; |
| 531 | bfd_vma (*get32) (const void *) = NULL; |
| 532 | |
| 533 | bfd_seek (abfd, 0, SEEK_SET); |
| 534 | |
| 535 | if (bfd_bread ((PTR) buf, 28, abfd) != 28) |
| 536 | return -1; |
| 537 | |
| 538 | if (bfd_getb32 (buf) == 0xfeedface) |
| 539 | { |
| 540 | header->byteorder = BFD_ENDIAN_BIG; |
| 541 | header->magic = 0xfeedface; |
| 542 | get32 = bfd_getb32; |
| 543 | } |
| 544 | else if (bfd_getl32 (buf) == 0xfeedface) |
| 545 | { |
| 546 | header->byteorder = BFD_ENDIAN_LITTLE; |
| 547 | header->magic = 0xfeedface; |
| 548 | get32 = bfd_getl32; |
| 549 | } |
| 550 | else |
| 551 | { |
| 552 | header->byteorder = BFD_ENDIAN_UNKNOWN; |
| 553 | return -1; |
| 554 | } |
| 555 | |
| 556 | header->cputype = (*get32) (buf + 4); |
| 557 | header->cpusubtype = (*get32) (buf + 8); |
| 558 | header->filetype = (*get32) (buf + 12); |
| 559 | header->ncmds = (*get32) (buf + 16); |
| 560 | header->sizeofcmds = (*get32) (buf + 20); |
| 561 | header->flags = (*get32) (buf + 24); |
| 562 | |
| 563 | return 0; |
| 564 | } |
| 565 | |
| 566 | static asection * |
| 567 | bfd_mach_o_make_bfd_section (abfd, section) |
| 568 | bfd *abfd; |
| 569 | bfd_mach_o_section *section; |
| 570 | { |
| 571 | asection *bfdsec; |
| 572 | char *sname; |
| 573 | const char *prefix = "LC_SEGMENT"; |
| 574 | unsigned int snamelen; |
| 575 | |
| 576 | snamelen = strlen (prefix) + 1 |
| 577 | + strlen (section->segname) + 1 |
| 578 | + strlen (section->sectname) + 1; |
| 579 | |
| 580 | sname = (char *) bfd_alloc (abfd, snamelen); |
| 581 | if (sname == NULL) |
| 582 | return NULL; |
| 583 | sprintf (sname, "%s.%s.%s", prefix, section->segname, section->sectname); |
| 584 | |
| 585 | bfdsec = bfd_make_section_anyway (abfd, sname); |
| 586 | if (bfdsec == NULL) |
| 587 | return NULL; |
| 588 | |
| 589 | bfdsec->vma = section->addr; |
| 590 | bfdsec->lma = section->addr; |
| 591 | bfdsec->size = section->size; |
| 592 | bfdsec->filepos = section->offset; |
| 593 | bfdsec->alignment_power = section->align; |
| 594 | |
| 595 | if (section->flags & BFD_MACH_O_S_ZEROFILL) |
| 596 | bfdsec->flags = SEC_ALLOC; |
| 597 | else |
| 598 | bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE; |
| 599 | |
| 600 | return bfdsec; |
| 601 | } |
| 602 | |
| 603 | static int |
| 604 | bfd_mach_o_scan_read_section (abfd, section, offset) |
| 605 | bfd *abfd; |
| 606 | bfd_mach_o_section *section; |
| 607 | bfd_vma offset; |
| 608 | { |
| 609 | unsigned char buf[68]; |
| 610 | |
| 611 | bfd_seek (abfd, offset, SEEK_SET); |
| 612 | if (bfd_bread ((PTR) buf, 68, abfd) != 68) |
| 613 | return -1; |
| 614 | |
| 615 | memcpy (section->sectname, buf, 16); |
| 616 | section->sectname[16] = '\0'; |
| 617 | memcpy (section->segname, buf + 16, 16); |
| 618 | section->segname[16] = '\0'; |
| 619 | section->addr = bfd_h_get_32 (abfd, buf + 32); |
| 620 | section->size = bfd_h_get_32 (abfd, buf + 36); |
| 621 | section->offset = bfd_h_get_32 (abfd, buf + 40); |
| 622 | section->align = bfd_h_get_32 (abfd, buf + 44); |
| 623 | section->reloff = bfd_h_get_32 (abfd, buf + 48); |
| 624 | section->nreloc = bfd_h_get_32 (abfd, buf + 52); |
| 625 | section->flags = bfd_h_get_32 (abfd, buf + 56); |
| 626 | section->reserved1 = bfd_h_get_32 (abfd, buf + 60); |
| 627 | section->reserved2 = bfd_h_get_32 (abfd, buf + 64); |
| 628 | section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section); |
| 629 | |
| 630 | if (section->bfdsection == NULL) |
| 631 | return -1; |
| 632 | |
| 633 | return 0; |
| 634 | } |
| 635 | |
| 636 | static int |
| 637 | bfd_mach_o_scan_write_section (abfd, section, offset) |
| 638 | bfd *abfd; |
| 639 | bfd_mach_o_section *section; |
| 640 | bfd_vma offset; |
| 641 | { |
| 642 | unsigned char buf[68]; |
| 643 | |
| 644 | memcpy (buf, section->sectname, 16); |
| 645 | memcpy (buf + 16, section->segname, 16); |
| 646 | bfd_h_put_32 (abfd, section->addr, buf + 32); |
| 647 | bfd_h_put_32 (abfd, section->size, buf + 36); |
| 648 | bfd_h_put_32 (abfd, section->offset, buf + 40); |
| 649 | bfd_h_put_32 (abfd, section->align, buf + 44); |
| 650 | bfd_h_put_32 (abfd, section->reloff, buf + 48); |
| 651 | bfd_h_put_32 (abfd, section->nreloc, buf + 52); |
| 652 | bfd_h_put_32 (abfd, section->flags, buf + 56); |
| 653 | /* bfd_h_put_32 (abfd, section->reserved1, buf + 60); */ |
| 654 | /* bfd_h_put_32 (abfd, section->reserved2, buf + 64); */ |
| 655 | |
| 656 | bfd_seek (abfd, offset, SEEK_SET); |
| 657 | if (bfd_bwrite ((PTR) buf, 68, abfd) != 68) |
| 658 | return -1; |
| 659 | |
| 660 | return 0; |
| 661 | } |
| 662 | |
| 663 | static int |
| 664 | bfd_mach_o_scan_write_symtab_symbols (abfd, command) |
| 665 | bfd *abfd; |
| 666 | bfd_mach_o_load_command *command; |
| 667 | { |
| 668 | bfd_mach_o_symtab_command *sym = &command->command.symtab; |
| 669 | asymbol *s = NULL; |
| 670 | unsigned long i; |
| 671 | |
| 672 | for (i = 0; i < sym->nsyms; i++) |
| 673 | { |
| 674 | unsigned char buf[12]; |
| 675 | bfd_vma symoff = sym->symoff + (i * 12); |
| 676 | unsigned char ntype = 0; |
| 677 | unsigned char nsect = 0; |
| 678 | short ndesc = 0; |
| 679 | |
| 680 | s = &sym->symbols[i]; |
| 681 | |
| 682 | /* Don't set this from the symbol information; use stored values. */ |
| 683 | #if 0 |
| 684 | if (s->flags & BSF_GLOBAL) |
| 685 | ntype |= N_EXT; |
| 686 | if (s->flags & BSF_DEBUGGING) |
| 687 | ntype |= N_STAB; |
| 688 | |
| 689 | if (s->section == bfd_und_section_ptr) |
| 690 | ntype |= N_UNDF; |
| 691 | else if (s->section == bfd_abs_section_ptr) |
| 692 | ntype |= N_ABS; |
| 693 | else |
| 694 | ntype |= N_SECT; |
| 695 | #endif |
| 696 | |
| 697 | /* Instead just set from the stored values. */ |
| 698 | ntype = (s->udata.i >> 24) & 0xff; |
| 699 | nsect = (s->udata.i >> 16) & 0xff; |
| 700 | ndesc = s->udata.i & 0xffff; |
| 701 | |
| 702 | bfd_h_put_32 (abfd, s->name - sym->strtab, buf); |
| 703 | bfd_h_put_8 (abfd, ntype, buf + 4); |
| 704 | bfd_h_put_8 (abfd, nsect, buf + 5); |
| 705 | bfd_h_put_16 (abfd, ndesc, buf + 6); |
| 706 | bfd_h_put_32 (abfd, s->section->vma + s->value, buf + 8); |
| 707 | |
| 708 | bfd_seek (abfd, symoff, SEEK_SET); |
| 709 | if (bfd_bwrite ((PTR) buf, 12, abfd) != 12) |
| 710 | { |
| 711 | fprintf (stderr, "bfd_mach_o_scan_write_symtab_symbols: unable to write %d bytes at %lu\n", |
| 712 | 12, (unsigned long) symoff); |
| 713 | return -1; |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | return 0; |
| 718 | } |
| 719 | |
| 720 | int |
| 721 | bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, i) |
| 722 | bfd *abfd; |
| 723 | bfd_mach_o_symtab_command *sym; |
| 724 | asymbol *s; |
| 725 | unsigned long i; |
| 726 | { |
| 727 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; |
| 728 | bfd_vma symoff = sym->symoff + (i * 12); |
| 729 | unsigned char buf[12]; |
| 730 | unsigned char type = -1; |
| 731 | unsigned char section = -1; |
| 732 | short desc = -1; |
| 733 | unsigned long value = -1; |
| 734 | unsigned long stroff = -1; |
| 735 | unsigned int symtype = -1; |
| 736 | |
| 737 | BFD_ASSERT (sym->strtab != NULL); |
| 738 | |
| 739 | bfd_seek (abfd, symoff, SEEK_SET); |
| 740 | if (bfd_bread ((PTR) buf, 12, abfd) != 12) |
| 741 | { |
| 742 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n", |
| 743 | 12, (unsigned long) symoff); |
| 744 | return -1; |
| 745 | } |
| 746 | |
| 747 | stroff = bfd_h_get_32 (abfd, buf); |
| 748 | type = bfd_h_get_8 (abfd, buf + 4); |
| 749 | symtype = (type & 0x0e); |
| 750 | section = bfd_h_get_8 (abfd, buf + 5) - 1; |
| 751 | desc = bfd_h_get_16 (abfd, buf + 6); |
| 752 | value = bfd_h_get_32 (abfd, buf + 8); |
| 753 | |
| 754 | if (stroff >= sym->strsize) |
| 755 | { |
| 756 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: symbol name out of range (%lu >= %lu)\n", |
| 757 | (unsigned long) stroff, (unsigned long) sym->strsize); |
| 758 | return -1; |
| 759 | } |
| 760 | |
| 761 | s->the_bfd = abfd; |
| 762 | s->name = sym->strtab + stroff; |
| 763 | s->value = value; |
| 764 | s->udata.i = (type << 24) | (section << 16) | desc; |
| 765 | s->flags = 0x0; |
| 766 | |
| 767 | if (type & BFD_MACH_O_N_STAB) |
| 768 | { |
| 769 | s->flags |= BSF_DEBUGGING; |
| 770 | s->section = bfd_und_section_ptr; |
| 771 | } |
| 772 | else |
| 773 | { |
| 774 | if (type & BFD_MACH_O_N_PEXT) |
| 775 | { |
| 776 | type &= ~BFD_MACH_O_N_PEXT; |
| 777 | s->flags |= BSF_GLOBAL; |
| 778 | } |
| 779 | |
| 780 | if (type & BFD_MACH_O_N_EXT) |
| 781 | { |
| 782 | type &= ~BFD_MACH_O_N_EXT; |
| 783 | s->flags |= BSF_GLOBAL; |
| 784 | } |
| 785 | |
| 786 | switch (symtype) |
| 787 | { |
| 788 | case BFD_MACH_O_N_UNDF: |
| 789 | s->section = bfd_und_section_ptr; |
| 790 | break; |
| 791 | case BFD_MACH_O_N_PBUD: |
| 792 | s->section = bfd_und_section_ptr; |
| 793 | break; |
| 794 | case BFD_MACH_O_N_ABS: |
| 795 | s->section = bfd_abs_section_ptr; |
| 796 | break; |
| 797 | case BFD_MACH_O_N_SECT: |
| 798 | if ((section > 0) && (section <= mdata->nsects)) |
| 799 | { |
| 800 | s->section = mdata->sections[section - 1]->bfdsection; |
| 801 | s->value = s->value - mdata->sections[section - 1]->addr; |
| 802 | } |
| 803 | else |
| 804 | { |
| 805 | /* Mach-O uses 0 to mean "no section"; not an error. */ |
| 806 | if (section != 0) |
| 807 | { |
| 808 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " |
| 809 | "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined\n", |
| 810 | s->name, section, mdata->nsects); |
| 811 | } |
| 812 | s->section = bfd_und_section_ptr; |
| 813 | } |
| 814 | break; |
| 815 | case BFD_MACH_O_N_INDR: |
| 816 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " |
| 817 | "symbol \"%s\" is unsupported 'indirect' reference: setting to undefined\n", |
| 818 | s->name); |
| 819 | s->section = bfd_und_section_ptr; |
| 820 | break; |
| 821 | default: |
| 822 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: " |
| 823 | "symbol \"%s\" specified invalid type field 0x%x: setting to undefined\n", |
| 824 | s->name, symtype); |
| 825 | s->section = bfd_und_section_ptr; |
| 826 | break; |
| 827 | } |
| 828 | } |
| 829 | |
| 830 | return 0; |
| 831 | } |
| 832 | |
| 833 | int |
| 834 | bfd_mach_o_scan_read_symtab_strtab (abfd, sym) |
| 835 | bfd *abfd; |
| 836 | bfd_mach_o_symtab_command *sym; |
| 837 | { |
| 838 | BFD_ASSERT (sym->strtab == NULL); |
| 839 | |
| 840 | if (abfd->flags & BFD_IN_MEMORY) |
| 841 | { |
| 842 | struct bfd_in_memory *b; |
| 843 | |
| 844 | b = (struct bfd_in_memory *) abfd->iostream; |
| 845 | |
| 846 | if ((sym->stroff + sym->strsize) > b->size) |
| 847 | { |
| 848 | bfd_set_error (bfd_error_file_truncated); |
| 849 | return -1; |
| 850 | } |
| 851 | sym->strtab = b->buffer + sym->stroff; |
| 852 | return 0; |
| 853 | } |
| 854 | |
| 855 | sym->strtab = bfd_alloc (abfd, sym->strsize); |
| 856 | if (sym->strtab == NULL) |
| 857 | return -1; |
| 858 | |
| 859 | bfd_seek (abfd, sym->stroff, SEEK_SET); |
| 860 | if (bfd_bread ((PTR) sym->strtab, sym->strsize, abfd) != sym->strsize) |
| 861 | { |
| 862 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_strtab: unable to read %lu bytes at %lu\n", |
| 863 | sym->strsize, sym->stroff); |
| 864 | return -1; |
| 865 | } |
| 866 | |
| 867 | return 0; |
| 868 | } |
| 869 | |
| 870 | int |
| 871 | bfd_mach_o_scan_read_symtab_symbols (abfd, sym) |
| 872 | bfd *abfd; |
| 873 | bfd_mach_o_symtab_command *sym; |
| 874 | { |
| 875 | unsigned long i; |
| 876 | int ret; |
| 877 | |
| 878 | BFD_ASSERT (sym->symbols == NULL); |
| 879 | sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (asymbol)); |
| 880 | |
| 881 | if (sym->symbols == NULL) |
| 882 | { |
| 883 | fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbols: unable to allocate memory for symbols\n"); |
| 884 | return -1; |
| 885 | } |
| 886 | |
| 887 | ret = bfd_mach_o_scan_read_symtab_strtab (abfd, sym); |
| 888 | if (ret != 0) |
| 889 | return ret; |
| 890 | |
| 891 | for (i = 0; i < sym->nsyms; i++) |
| 892 | { |
| 893 | ret = bfd_mach_o_scan_read_symtab_symbol (abfd, sym, &sym->symbols[i], i); |
| 894 | if (ret != 0) |
| 895 | return ret; |
| 896 | } |
| 897 | |
| 898 | return 0; |
| 899 | } |
| 900 | |
| 901 | int |
| 902 | bfd_mach_o_scan_read_dysymtab_symbol (abfd, dysym, sym, s, i) |
| 903 | bfd *abfd; |
| 904 | bfd_mach_o_dysymtab_command *dysym; |
| 905 | bfd_mach_o_symtab_command *sym; |
| 906 | asymbol *s; |
| 907 | unsigned long i; |
| 908 | { |
| 909 | unsigned long isymoff = dysym->indirectsymoff + (i * 4); |
| 910 | unsigned long symindex; |
| 911 | unsigned char buf[4]; |
| 912 | |
| 913 | BFD_ASSERT (i < dysym->nindirectsyms); |
| 914 | |
| 915 | bfd_seek (abfd, isymoff, SEEK_SET); |
| 916 | if (bfd_bread ((PTR) buf, 4, abfd) != 4) |
| 917 | { |
| 918 | fprintf (stderr, "bfd_mach_o_scan_read_dysymtab_symbol: unable to read %lu bytes at %lu\n", |
| 919 | (unsigned long) 4, isymoff); |
| 920 | return -1; |
| 921 | } |
| 922 | symindex = bfd_h_get_32 (abfd, buf); |
| 923 | |
| 924 | return bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, symindex); |
| 925 | } |
| 926 | |
| 927 | static const char * |
| 928 | bfd_mach_o_i386_flavour_string (flavour) |
| 929 | unsigned int flavour; |
| 930 | { |
| 931 | switch ((int) flavour) |
| 932 | { |
| 933 | case BFD_MACH_O_i386_NEW_THREAD_STATE: return "i386_NEW_THREAD_STATE"; |
| 934 | case BFD_MACH_O_i386_FLOAT_STATE: return "i386_FLOAT_STATE"; |
| 935 | case BFD_MACH_O_i386_ISA_PORT_MAP_STATE: return "i386_ISA_PORT_MAP_STATE"; |
| 936 | case BFD_MACH_O_i386_V86_ASSIST_STATE: return "i386_V86_ASSIST_STATE"; |
| 937 | case BFD_MACH_O_i386_REGS_SEGS_STATE: return "i386_REGS_SEGS_STATE"; |
| 938 | case BFD_MACH_O_i386_THREAD_SYSCALL_STATE: return "i386_THREAD_SYSCALL_STATE"; |
| 939 | case BFD_MACH_O_i386_THREAD_STATE_NONE: return "i386_THREAD_STATE_NONE"; |
| 940 | case BFD_MACH_O_i386_SAVED_STATE: return "i386_SAVED_STATE"; |
| 941 | case BFD_MACH_O_i386_THREAD_STATE: return "i386_THREAD_STATE"; |
| 942 | case BFD_MACH_O_i386_THREAD_FPSTATE: return "i386_THREAD_FPSTATE"; |
| 943 | case BFD_MACH_O_i386_THREAD_EXCEPTSTATE: return "i386_THREAD_EXCEPTSTATE"; |
| 944 | case BFD_MACH_O_i386_THREAD_CTHREADSTATE: return "i386_THREAD_CTHREADSTATE"; |
| 945 | default: return "UNKNOWN"; |
| 946 | } |
| 947 | } |
| 948 | |
| 949 | static const char * |
| 950 | bfd_mach_o_ppc_flavour_string (flavour) |
| 951 | unsigned int flavour; |
| 952 | { |
| 953 | switch ((int) flavour) |
| 954 | { |
| 955 | case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE"; |
| 956 | case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE"; |
| 957 | case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE"; |
| 958 | case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE"; |
| 959 | default: return "UNKNOWN"; |
| 960 | } |
| 961 | } |
| 962 | |
| 963 | static int |
| 964 | bfd_mach_o_scan_write_thread (abfd, command) |
| 965 | bfd *abfd; |
| 966 | bfd_mach_o_load_command *command; |
| 967 | { |
| 968 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
| 969 | unsigned int i; |
| 970 | unsigned char buf[8]; |
| 971 | bfd_vma offset; |
| 972 | unsigned int nflavours; |
| 973 | |
| 974 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) |
| 975 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); |
| 976 | |
| 977 | offset = 8; |
| 978 | nflavours = 0; |
| 979 | for (i = 0; i < cmd->nflavours; i++) |
| 980 | { |
| 981 | BFD_ASSERT ((cmd->flavours[i].size % 4) == 0); |
| 982 | BFD_ASSERT (cmd->flavours[i].offset == (command->offset + offset + 8)); |
| 983 | |
| 984 | bfd_h_put_32 (abfd, cmd->flavours[i].flavour, buf); |
| 985 | bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), buf + 4); |
| 986 | |
| 987 | bfd_seek (abfd, command->offset + offset, SEEK_SET); |
| 988 | if (bfd_bwrite ((PTR) buf, 8, abfd) != 8) |
| 989 | return -1; |
| 990 | |
| 991 | offset += cmd->flavours[i].size + 8; |
| 992 | } |
| 993 | |
| 994 | return 0; |
| 995 | } |
| 996 | |
| 997 | static int |
| 998 | bfd_mach_o_scan_read_dylinker (abfd, command) |
| 999 | bfd *abfd; |
| 1000 | bfd_mach_o_load_command *command; |
| 1001 | { |
| 1002 | bfd_mach_o_dylinker_command *cmd = &command->command.dylinker; |
| 1003 | unsigned char buf[4]; |
| 1004 | unsigned int nameoff; |
| 1005 | asection *bfdsec; |
| 1006 | char *sname; |
| 1007 | const char *prefix; |
| 1008 | |
| 1009 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER) |
| 1010 | || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)); |
| 1011 | |
| 1012 | bfd_seek (abfd, command->offset + 8, SEEK_SET); |
| 1013 | if (bfd_bread ((PTR) buf, 4, abfd) != 4) |
| 1014 | return -1; |
| 1015 | |
| 1016 | nameoff = bfd_h_get_32 (abfd, buf + 0); |
| 1017 | |
| 1018 | cmd->name_offset = command->offset + nameoff; |
| 1019 | cmd->name_len = command->len - nameoff; |
| 1020 | |
| 1021 | if (command->type == BFD_MACH_O_LC_LOAD_DYLINKER) |
| 1022 | prefix = "LC_LOAD_DYLINKER"; |
| 1023 | else if (command->type == BFD_MACH_O_LC_ID_DYLINKER) |
| 1024 | prefix = "LC_ID_DYLINKER"; |
| 1025 | else |
| 1026 | abort (); |
| 1027 | |
| 1028 | sname = (char *) bfd_alloc (abfd, strlen (prefix) + 1); |
| 1029 | if (sname == NULL) |
| 1030 | return -1; |
| 1031 | strcpy (sname, prefix); |
| 1032 | |
| 1033 | bfdsec = bfd_make_section_anyway (abfd, sname); |
| 1034 | if (bfdsec == NULL) |
| 1035 | return -1; |
| 1036 | |
| 1037 | bfdsec->vma = 0; |
| 1038 | bfdsec->lma = 0; |
| 1039 | bfdsec->size = command->len - 8; |
| 1040 | bfdsec->filepos = command->offset + 8; |
| 1041 | bfdsec->alignment_power = 0; |
| 1042 | bfdsec->flags = SEC_HAS_CONTENTS; |
| 1043 | |
| 1044 | cmd->section = bfdsec; |
| 1045 | |
| 1046 | return 0; |
| 1047 | } |
| 1048 | |
| 1049 | static int |
| 1050 | bfd_mach_o_scan_read_dylib (abfd, command) |
| 1051 | bfd *abfd; |
| 1052 | bfd_mach_o_load_command *command; |
| 1053 | { |
| 1054 | bfd_mach_o_dylib_command *cmd = &command->command.dylib; |
| 1055 | unsigned char buf[16]; |
| 1056 | unsigned int nameoff; |
| 1057 | asection *bfdsec; |
| 1058 | char *sname; |
| 1059 | const char *prefix; |
| 1060 | |
| 1061 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLIB) |
| 1062 | || (command->type == BFD_MACH_O_LC_LOAD_DYLIB) |
| 1063 | || (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB)); |
| 1064 | |
| 1065 | bfd_seek (abfd, command->offset + 8, SEEK_SET); |
| 1066 | if (bfd_bread ((PTR) buf, 16, abfd) != 16) |
| 1067 | return -1; |
| 1068 | |
| 1069 | nameoff = bfd_h_get_32 (abfd, buf + 0); |
| 1070 | cmd->timestamp = bfd_h_get_32 (abfd, buf + 4); |
| 1071 | cmd->current_version = bfd_h_get_32 (abfd, buf + 8); |
| 1072 | cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12); |
| 1073 | |
| 1074 | cmd->name_offset = command->offset + nameoff; |
| 1075 | cmd->name_len = command->len - nameoff; |
| 1076 | |
| 1077 | if (command->type == BFD_MACH_O_LC_LOAD_DYLIB) |
| 1078 | prefix = "LC_LOAD_DYLIB"; |
| 1079 | else if (command->type == BFD_MACH_O_LC_LOAD_WEAK_DYLIB) |
| 1080 | prefix = "LC_LOAD_WEAK_DYLIB"; |
| 1081 | else if (command->type == BFD_MACH_O_LC_ID_DYLIB) |
| 1082 | prefix = "LC_ID_DYLIB"; |
| 1083 | else |
| 1084 | abort (); |
| 1085 | |
| 1086 | sname = (char *) bfd_alloc (abfd, strlen (prefix) + 1); |
| 1087 | if (sname == NULL) |
| 1088 | return -1; |
| 1089 | strcpy (sname, prefix); |
| 1090 | |
| 1091 | bfdsec = bfd_make_section_anyway (abfd, sname); |
| 1092 | if (bfdsec == NULL) |
| 1093 | return -1; |
| 1094 | |
| 1095 | bfdsec->vma = 0; |
| 1096 | bfdsec->lma = 0; |
| 1097 | bfdsec->size = command->len - 8; |
| 1098 | bfdsec->filepos = command->offset + 8; |
| 1099 | bfdsec->alignment_power = 0; |
| 1100 | bfdsec->flags = SEC_HAS_CONTENTS; |
| 1101 | |
| 1102 | cmd->section = bfdsec; |
| 1103 | |
| 1104 | return 0; |
| 1105 | } |
| 1106 | |
| 1107 | static int |
| 1108 | bfd_mach_o_scan_read_prebound_dylib (abfd, command) |
| 1109 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1110 | bfd_mach_o_load_command *command ATTRIBUTE_UNUSED; |
| 1111 | { |
| 1112 | /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */ |
| 1113 | |
| 1114 | BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB); |
| 1115 | return 0; |
| 1116 | } |
| 1117 | |
| 1118 | static int |
| 1119 | bfd_mach_o_scan_read_thread (abfd, command) |
| 1120 | bfd *abfd; |
| 1121 | bfd_mach_o_load_command *command; |
| 1122 | { |
| 1123 | bfd_mach_o_data_struct *mdata = NULL; |
| 1124 | bfd_mach_o_thread_command *cmd = &command->command.thread; |
| 1125 | unsigned char buf[8]; |
| 1126 | bfd_vma offset; |
| 1127 | unsigned int nflavours; |
| 1128 | unsigned int i; |
| 1129 | |
| 1130 | BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD) |
| 1131 | || (command->type == BFD_MACH_O_LC_UNIXTHREAD)); |
| 1132 | |
| 1133 | BFD_ASSERT (bfd_mach_o_valid (abfd)); |
| 1134 | mdata = abfd->tdata.mach_o_data; |
| 1135 | |
| 1136 | offset = 8; |
| 1137 | nflavours = 0; |
| 1138 | while (offset != command->len) |
| 1139 | { |
| 1140 | if (offset >= command->len) |
| 1141 | return -1; |
| 1142 | |
| 1143 | bfd_seek (abfd, command->offset + offset, SEEK_SET); |
| 1144 | |
| 1145 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) |
| 1146 | return -1; |
| 1147 | |
| 1148 | offset += 8 + bfd_h_get_32 (abfd, buf + 4) * 4; |
| 1149 | nflavours++; |
| 1150 | } |
| 1151 | |
| 1152 | cmd->flavours = |
| 1153 | ((bfd_mach_o_thread_flavour *) |
| 1154 | bfd_alloc (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour))); |
| 1155 | if (cmd->flavours == NULL) |
| 1156 | return -1; |
| 1157 | cmd->nflavours = nflavours; |
| 1158 | |
| 1159 | offset = 8; |
| 1160 | nflavours = 0; |
| 1161 | while (offset != command->len) |
| 1162 | { |
| 1163 | if (offset >= command->len) |
| 1164 | return -1; |
| 1165 | |
| 1166 | if (nflavours >= cmd->nflavours) |
| 1167 | return -1; |
| 1168 | |
| 1169 | bfd_seek (abfd, command->offset + offset, SEEK_SET); |
| 1170 | |
| 1171 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) |
| 1172 | return -1; |
| 1173 | |
| 1174 | cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, buf); |
| 1175 | cmd->flavours[nflavours].offset = command->offset + offset + 8; |
| 1176 | cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, buf + 4) * 4; |
| 1177 | offset += cmd->flavours[nflavours].size + 8; |
| 1178 | nflavours++; |
| 1179 | } |
| 1180 | |
| 1181 | for (i = 0; i < nflavours; i++) |
| 1182 | { |
| 1183 | asection *bfdsec; |
| 1184 | unsigned int snamelen; |
| 1185 | char *sname; |
| 1186 | const char *flavourstr; |
| 1187 | const char *prefix = "LC_THREAD"; |
| 1188 | unsigned int j = 0; |
| 1189 | |
| 1190 | switch (mdata->header.cputype) |
| 1191 | { |
| 1192 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
| 1193 | flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour); |
| 1194 | break; |
| 1195 | case BFD_MACH_O_CPU_TYPE_I386: |
| 1196 | flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour); |
| 1197 | break; |
| 1198 | default: |
| 1199 | flavourstr = "UNKNOWN_ARCHITECTURE"; |
| 1200 | break; |
| 1201 | } |
| 1202 | |
| 1203 | snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1; |
| 1204 | sname = (char *) bfd_alloc (abfd, snamelen); |
| 1205 | if (sname == NULL) |
| 1206 | return -1; |
| 1207 | |
| 1208 | for (;;) |
| 1209 | { |
| 1210 | sprintf (sname, "%s.%s.%u", prefix, flavourstr, j); |
| 1211 | if (bfd_get_section_by_name (abfd, sname) == NULL) |
| 1212 | break; |
| 1213 | j++; |
| 1214 | } |
| 1215 | |
| 1216 | bfdsec = bfd_make_section (abfd, sname); |
| 1217 | |
| 1218 | bfdsec->vma = 0; |
| 1219 | bfdsec->lma = 0; |
| 1220 | bfdsec->size = cmd->flavours[i].size; |
| 1221 | bfdsec->filepos = cmd->flavours[i].offset; |
| 1222 | bfdsec->alignment_power = 0x0; |
| 1223 | bfdsec->flags = SEC_HAS_CONTENTS; |
| 1224 | |
| 1225 | cmd->section = bfdsec; |
| 1226 | } |
| 1227 | |
| 1228 | return 0; |
| 1229 | } |
| 1230 | |
| 1231 | static int |
| 1232 | bfd_mach_o_scan_write_symtab (abfd, command) |
| 1233 | bfd *abfd; |
| 1234 | bfd_mach_o_load_command *command; |
| 1235 | { |
| 1236 | bfd_mach_o_symtab_command *seg = &command->command.symtab; |
| 1237 | unsigned char buf[16]; |
| 1238 | |
| 1239 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); |
| 1240 | |
| 1241 | bfd_h_put_32 (abfd, seg->symoff, buf); |
| 1242 | bfd_h_put_32 (abfd, seg->nsyms, buf + 4); |
| 1243 | bfd_h_put_32 (abfd, seg->stroff, buf + 8); |
| 1244 | bfd_h_put_32 (abfd, seg->strsize, buf + 12); |
| 1245 | |
| 1246 | bfd_seek (abfd, command->offset + 8, SEEK_SET); |
| 1247 | if (bfd_bwrite ((PTR) buf, 16, abfd) != 16) |
| 1248 | return -1; |
| 1249 | |
| 1250 | if (bfd_mach_o_scan_write_symtab_symbols (abfd, command) != 0) |
| 1251 | return -1; |
| 1252 | |
| 1253 | return 0; |
| 1254 | } |
| 1255 | |
| 1256 | static int |
| 1257 | bfd_mach_o_scan_read_dysymtab (abfd, command) |
| 1258 | bfd *abfd; |
| 1259 | bfd_mach_o_load_command *command; |
| 1260 | { |
| 1261 | bfd_mach_o_dysymtab_command *seg = &command->command.dysymtab; |
| 1262 | unsigned char buf[72]; |
| 1263 | |
| 1264 | BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB); |
| 1265 | |
| 1266 | bfd_seek (abfd, command->offset + 8, SEEK_SET); |
| 1267 | if (bfd_bread ((PTR) buf, 72, abfd) != 72) |
| 1268 | return -1; |
| 1269 | |
| 1270 | seg->ilocalsym = bfd_h_get_32 (abfd, buf + 0); |
| 1271 | seg->nlocalsym = bfd_h_get_32 (abfd, buf + 4); |
| 1272 | seg->iextdefsym = bfd_h_get_32 (abfd, buf + 8); |
| 1273 | seg->nextdefsym = bfd_h_get_32 (abfd, buf + 12); |
| 1274 | seg->iundefsym = bfd_h_get_32 (abfd, buf + 16); |
| 1275 | seg->nundefsym = bfd_h_get_32 (abfd, buf + 20); |
| 1276 | seg->tocoff = bfd_h_get_32 (abfd, buf + 24); |
| 1277 | seg->ntoc = bfd_h_get_32 (abfd, buf + 28); |
| 1278 | seg->modtaboff = bfd_h_get_32 (abfd, buf + 32); |
| 1279 | seg->nmodtab = bfd_h_get_32 (abfd, buf + 36); |
| 1280 | seg->extrefsymoff = bfd_h_get_32 (abfd, buf + 40); |
| 1281 | seg->nextrefsyms = bfd_h_get_32 (abfd, buf + 44); |
| 1282 | seg->indirectsymoff = bfd_h_get_32 (abfd, buf + 48); |
| 1283 | seg->nindirectsyms = bfd_h_get_32 (abfd, buf + 52); |
| 1284 | seg->extreloff = bfd_h_get_32 (abfd, buf + 56); |
| 1285 | seg->nextrel = bfd_h_get_32 (abfd, buf + 60); |
| 1286 | seg->locreloff = bfd_h_get_32 (abfd, buf + 64); |
| 1287 | seg->nlocrel = bfd_h_get_32 (abfd, buf + 68); |
| 1288 | |
| 1289 | return 0; |
| 1290 | } |
| 1291 | |
| 1292 | static int |
| 1293 | bfd_mach_o_scan_read_symtab (abfd, command) |
| 1294 | bfd *abfd; |
| 1295 | bfd_mach_o_load_command *command; |
| 1296 | { |
| 1297 | bfd_mach_o_symtab_command *seg = &command->command.symtab; |
| 1298 | unsigned char buf[16]; |
| 1299 | asection *bfdsec; |
| 1300 | char *sname; |
| 1301 | const char *prefix = "LC_SYMTAB.stabs"; |
| 1302 | |
| 1303 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB); |
| 1304 | |
| 1305 | bfd_seek (abfd, command->offset + 8, SEEK_SET); |
| 1306 | if (bfd_bread ((PTR) buf, 16, abfd) != 16) |
| 1307 | return -1; |
| 1308 | |
| 1309 | seg->symoff = bfd_h_get_32 (abfd, buf); |
| 1310 | seg->nsyms = bfd_h_get_32 (abfd, buf + 4); |
| 1311 | seg->stroff = bfd_h_get_32 (abfd, buf + 8); |
| 1312 | seg->strsize = bfd_h_get_32 (abfd, buf + 12); |
| 1313 | seg->symbols = NULL; |
| 1314 | seg->strtab = NULL; |
| 1315 | |
| 1316 | sname = (char *) bfd_alloc (abfd, strlen (prefix) + 1); |
| 1317 | if (sname == NULL) |
| 1318 | return -1; |
| 1319 | strcpy (sname, prefix); |
| 1320 | |
| 1321 | bfdsec = bfd_make_section_anyway (abfd, sname); |
| 1322 | if (bfdsec == NULL) |
| 1323 | return -1; |
| 1324 | |
| 1325 | bfdsec->vma = 0; |
| 1326 | bfdsec->lma = 0; |
| 1327 | bfdsec->size = seg->nsyms * 12; |
| 1328 | bfdsec->filepos = seg->symoff; |
| 1329 | bfdsec->alignment_power = 0; |
| 1330 | bfdsec->flags = SEC_HAS_CONTENTS; |
| 1331 | |
| 1332 | seg->stabs_segment = bfdsec; |
| 1333 | |
| 1334 | prefix = "LC_SYMTAB.stabstr"; |
| 1335 | sname = (char *) bfd_alloc (abfd, strlen (prefix) + 1); |
| 1336 | if (sname == NULL) |
| 1337 | return -1; |
| 1338 | strcpy (sname, prefix); |
| 1339 | |
| 1340 | bfdsec = bfd_make_section_anyway (abfd, sname); |
| 1341 | if (bfdsec == NULL) |
| 1342 | return -1; |
| 1343 | |
| 1344 | bfdsec->vma = 0; |
| 1345 | bfdsec->lma = 0; |
| 1346 | bfdsec->size = seg->strsize; |
| 1347 | bfdsec->filepos = seg->stroff; |
| 1348 | bfdsec->alignment_power = 0; |
| 1349 | bfdsec->flags = SEC_HAS_CONTENTS; |
| 1350 | |
| 1351 | seg->stabstr_segment = bfdsec; |
| 1352 | |
| 1353 | return 0; |
| 1354 | } |
| 1355 | |
| 1356 | static int |
| 1357 | bfd_mach_o_scan_read_segment (abfd, command) |
| 1358 | bfd *abfd; |
| 1359 | bfd_mach_o_load_command *command; |
| 1360 | { |
| 1361 | unsigned char buf[48]; |
| 1362 | bfd_mach_o_segment_command *seg = &command->command.segment; |
| 1363 | unsigned long i; |
| 1364 | asection *bfdsec; |
| 1365 | char *sname; |
| 1366 | const char *prefix = "LC_SEGMENT"; |
| 1367 | unsigned int snamelen; |
| 1368 | |
| 1369 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
| 1370 | |
| 1371 | bfd_seek (abfd, command->offset + 8, SEEK_SET); |
| 1372 | if (bfd_bread ((PTR) buf, 48, abfd) != 48) |
| 1373 | return -1; |
| 1374 | |
| 1375 | memcpy (seg->segname, buf, 16); |
| 1376 | seg->vmaddr = bfd_h_get_32 (abfd, buf + 16); |
| 1377 | seg->vmsize = bfd_h_get_32 (abfd, buf + 20); |
| 1378 | seg->fileoff = bfd_h_get_32 (abfd, buf + 24); |
| 1379 | seg->filesize = bfd_h_get_32 (abfd, buf + 28); |
| 1380 | /* seg->maxprot = bfd_h_get_32 (abfd, buf + 32); */ |
| 1381 | /* seg->initprot = bfd_h_get_32 (abfd, buf + 36); */ |
| 1382 | seg->nsects = bfd_h_get_32 (abfd, buf + 40); |
| 1383 | seg->flags = bfd_h_get_32 (abfd, buf + 44); |
| 1384 | |
| 1385 | snamelen = strlen (prefix) + 1 + strlen (seg->segname) + 1; |
| 1386 | sname = (char *) bfd_alloc (abfd, snamelen); |
| 1387 | if (sname == NULL) |
| 1388 | return -1; |
| 1389 | sprintf (sname, "%s.%s", prefix, seg->segname); |
| 1390 | |
| 1391 | bfdsec = bfd_make_section_anyway (abfd, sname); |
| 1392 | if (bfdsec == NULL) |
| 1393 | return -1; |
| 1394 | |
| 1395 | bfdsec->vma = seg->vmaddr; |
| 1396 | bfdsec->lma = seg->vmaddr; |
| 1397 | bfdsec->size = seg->filesize; |
| 1398 | bfdsec->filepos = seg->fileoff; |
| 1399 | bfdsec->alignment_power = 0x0; |
| 1400 | bfdsec->flags = SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE; |
| 1401 | |
| 1402 | seg->segment = bfdsec; |
| 1403 | |
| 1404 | if (seg->nsects != 0) |
| 1405 | { |
| 1406 | seg->sections = |
| 1407 | ((bfd_mach_o_section *) |
| 1408 | bfd_alloc (abfd, seg->nsects * sizeof (bfd_mach_o_section))); |
| 1409 | if (seg->sections == NULL) |
| 1410 | return -1; |
| 1411 | |
| 1412 | for (i = 0; i < seg->nsects; i++) |
| 1413 | { |
| 1414 | bfd_vma segoff = command->offset + 48 + 8 + (i * 68); |
| 1415 | |
| 1416 | if (bfd_mach_o_scan_read_section (abfd, &seg->sections[i], |
| 1417 | segoff) != 0) |
| 1418 | return -1; |
| 1419 | } |
| 1420 | } |
| 1421 | |
| 1422 | return 0; |
| 1423 | } |
| 1424 | |
| 1425 | static int |
| 1426 | bfd_mach_o_scan_write_segment (abfd, command) |
| 1427 | bfd *abfd; |
| 1428 | bfd_mach_o_load_command *command; |
| 1429 | { |
| 1430 | unsigned char buf[48]; |
| 1431 | bfd_mach_o_segment_command *seg = &command->command.segment; |
| 1432 | unsigned long i; |
| 1433 | |
| 1434 | BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT); |
| 1435 | |
| 1436 | memcpy (buf, seg->segname, 16); |
| 1437 | bfd_h_put_32 (abfd, seg->vmaddr, buf + 16); |
| 1438 | bfd_h_put_32 (abfd, seg->vmsize, buf + 20); |
| 1439 | bfd_h_put_32 (abfd, seg->fileoff, buf + 24); |
| 1440 | bfd_h_put_32 (abfd, seg->filesize, buf + 28); |
| 1441 | bfd_h_put_32 (abfd, 0 /* seg->maxprot */, buf + 32); |
| 1442 | bfd_h_put_32 (abfd, 0 /* seg->initprot */, buf + 36); |
| 1443 | bfd_h_put_32 (abfd, seg->nsects, buf + 40); |
| 1444 | bfd_h_put_32 (abfd, seg->flags, buf + 44); |
| 1445 | |
| 1446 | bfd_seek (abfd, command->offset + 8, SEEK_SET); |
| 1447 | if (bfd_bwrite ((PTR) buf, 48, abfd) != 48) |
| 1448 | return -1; |
| 1449 | |
| 1450 | { |
| 1451 | char buf[1024]; |
| 1452 | bfd_vma nbytes = seg->filesize; |
| 1453 | bfd_vma curoff = seg->fileoff; |
| 1454 | |
| 1455 | while (nbytes > 0) |
| 1456 | { |
| 1457 | bfd_vma thisread = nbytes; |
| 1458 | |
| 1459 | if (thisread > 1024) |
| 1460 | thisread = 1024; |
| 1461 | |
| 1462 | bfd_seek (abfd, curoff, SEEK_SET); |
| 1463 | if (bfd_bread ((PTR) buf, thisread, abfd) != thisread) |
| 1464 | return -1; |
| 1465 | |
| 1466 | bfd_seek (abfd, curoff, SEEK_SET); |
| 1467 | if (bfd_bwrite ((PTR) buf, thisread, abfd) != thisread) |
| 1468 | return -1; |
| 1469 | |
| 1470 | nbytes -= thisread; |
| 1471 | curoff += thisread; |
| 1472 | } |
| 1473 | } |
| 1474 | |
| 1475 | for (i = 0; i < seg->nsects; i++) |
| 1476 | { |
| 1477 | bfd_vma segoff = command->offset + 48 + 8 + (i * 68); |
| 1478 | |
| 1479 | if (bfd_mach_o_scan_write_section (abfd, &seg->sections[i], segoff) != 0) |
| 1480 | return -1; |
| 1481 | } |
| 1482 | |
| 1483 | return 0; |
| 1484 | } |
| 1485 | |
| 1486 | static int |
| 1487 | bfd_mach_o_scan_read_command (abfd, command) |
| 1488 | bfd *abfd; |
| 1489 | bfd_mach_o_load_command *command; |
| 1490 | { |
| 1491 | unsigned char buf[8]; |
| 1492 | |
| 1493 | bfd_seek (abfd, command->offset, SEEK_SET); |
| 1494 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) |
| 1495 | return -1; |
| 1496 | |
| 1497 | command->type = (bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD); |
| 1498 | command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD |
| 1499 | ? 1 : 0); |
| 1500 | command->len = bfd_h_get_32 (abfd, buf + 4); |
| 1501 | |
| 1502 | switch (command->type) |
| 1503 | { |
| 1504 | case BFD_MACH_O_LC_SEGMENT: |
| 1505 | if (bfd_mach_o_scan_read_segment (abfd, command) != 0) |
| 1506 | return -1; |
| 1507 | break; |
| 1508 | case BFD_MACH_O_LC_SYMTAB: |
| 1509 | if (bfd_mach_o_scan_read_symtab (abfd, command) != 0) |
| 1510 | return -1; |
| 1511 | break; |
| 1512 | case BFD_MACH_O_LC_SYMSEG: |
| 1513 | break; |
| 1514 | case BFD_MACH_O_LC_THREAD: |
| 1515 | case BFD_MACH_O_LC_UNIXTHREAD: |
| 1516 | if (bfd_mach_o_scan_read_thread (abfd, command) != 0) |
| 1517 | return -1; |
| 1518 | break; |
| 1519 | case BFD_MACH_O_LC_LOAD_DYLINKER: |
| 1520 | case BFD_MACH_O_LC_ID_DYLINKER: |
| 1521 | if (bfd_mach_o_scan_read_dylinker (abfd, command) != 0) |
| 1522 | return -1; |
| 1523 | break; |
| 1524 | case BFD_MACH_O_LC_LOAD_DYLIB: |
| 1525 | case BFD_MACH_O_LC_ID_DYLIB: |
| 1526 | case BFD_MACH_O_LC_LOAD_WEAK_DYLIB: |
| 1527 | if (bfd_mach_o_scan_read_dylib (abfd, command) != 0) |
| 1528 | return -1; |
| 1529 | break; |
| 1530 | case BFD_MACH_O_LC_PREBOUND_DYLIB: |
| 1531 | if (bfd_mach_o_scan_read_prebound_dylib (abfd, command) != 0) |
| 1532 | return -1; |
| 1533 | break; |
| 1534 | case BFD_MACH_O_LC_LOADFVMLIB: |
| 1535 | case BFD_MACH_O_LC_IDFVMLIB: |
| 1536 | case BFD_MACH_O_LC_IDENT: |
| 1537 | case BFD_MACH_O_LC_FVMFILE: |
| 1538 | case BFD_MACH_O_LC_PREPAGE: |
| 1539 | case BFD_MACH_O_LC_ROUTINES: |
| 1540 | case BFD_MACH_O_LC_SUB_FRAMEWORK: |
| 1541 | break; |
| 1542 | case BFD_MACH_O_LC_DYSYMTAB: |
| 1543 | if (bfd_mach_o_scan_read_dysymtab (abfd, command) != 0) |
| 1544 | return -1; |
| 1545 | break; |
| 1546 | case BFD_MACH_O_LC_SUB_UMBRELLA: |
| 1547 | case BFD_MACH_O_LC_SUB_CLIENT: |
| 1548 | case BFD_MACH_O_LC_SUB_LIBRARY: |
| 1549 | case BFD_MACH_O_LC_TWOLEVEL_HINTS: |
| 1550 | case BFD_MACH_O_LC_PREBIND_CKSUM: |
| 1551 | break; |
| 1552 | default: |
| 1553 | fprintf (stderr, "unable to read unknown load command 0x%lx\n", |
| 1554 | (unsigned long) command->type); |
| 1555 | break; |
| 1556 | } |
| 1557 | |
| 1558 | return 0; |
| 1559 | } |
| 1560 | |
| 1561 | static void |
| 1562 | bfd_mach_o_flatten_sections (abfd) |
| 1563 | bfd *abfd; |
| 1564 | { |
| 1565 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; |
| 1566 | long csect = 0; |
| 1567 | unsigned long i, j; |
| 1568 | |
| 1569 | mdata->nsects = 0; |
| 1570 | |
| 1571 | for (i = 0; i < mdata->header.ncmds; i++) |
| 1572 | { |
| 1573 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT) |
| 1574 | { |
| 1575 | bfd_mach_o_segment_command *seg; |
| 1576 | |
| 1577 | seg = &mdata->commands[i].command.segment; |
| 1578 | mdata->nsects += seg->nsects; |
| 1579 | } |
| 1580 | } |
| 1581 | |
| 1582 | mdata->sections = bfd_alloc (abfd, |
| 1583 | mdata->nsects * sizeof (bfd_mach_o_section *)); |
| 1584 | csect = 0; |
| 1585 | |
| 1586 | for (i = 0; i < mdata->header.ncmds; i++) |
| 1587 | { |
| 1588 | if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT) |
| 1589 | { |
| 1590 | bfd_mach_o_segment_command *seg; |
| 1591 | |
| 1592 | seg = &mdata->commands[i].command.segment; |
| 1593 | BFD_ASSERT (csect + seg->nsects <= mdata->nsects); |
| 1594 | |
| 1595 | for (j = 0; j < seg->nsects; j++) |
| 1596 | mdata->sections[csect++] = &seg->sections[j]; |
| 1597 | } |
| 1598 | } |
| 1599 | } |
| 1600 | |
| 1601 | int |
| 1602 | bfd_mach_o_scan_start_address (abfd) |
| 1603 | bfd *abfd; |
| 1604 | { |
| 1605 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; |
| 1606 | bfd_mach_o_thread_command *cmd = NULL; |
| 1607 | unsigned long i; |
| 1608 | |
| 1609 | for (i = 0; i < mdata->header.ncmds; i++) |
| 1610 | { |
| 1611 | if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) || |
| 1612 | (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD)) |
| 1613 | { |
| 1614 | if (cmd == NULL) |
| 1615 | cmd = &mdata->commands[i].command.thread; |
| 1616 | else |
| 1617 | return 0; |
| 1618 | } |
| 1619 | } |
| 1620 | |
| 1621 | if (cmd == NULL) |
| 1622 | return 0; |
| 1623 | |
| 1624 | for (i = 0; i < cmd->nflavours; i++) |
| 1625 | { |
| 1626 | if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386) |
| 1627 | && (cmd->flavours[i].flavour |
| 1628 | == (unsigned long) BFD_MACH_O_i386_THREAD_STATE)) |
| 1629 | { |
| 1630 | unsigned char buf[4]; |
| 1631 | |
| 1632 | bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET); |
| 1633 | |
| 1634 | if (bfd_bread (buf, 4, abfd) != 4) |
| 1635 | return -1; |
| 1636 | |
| 1637 | abfd->start_address = bfd_h_get_32 (abfd, buf); |
| 1638 | } |
| 1639 | else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC) |
| 1640 | && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE)) |
| 1641 | { |
| 1642 | unsigned char buf[4]; |
| 1643 | |
| 1644 | bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET); |
| 1645 | |
| 1646 | if (bfd_bread (buf, 4, abfd) != 4) |
| 1647 | return -1; |
| 1648 | |
| 1649 | abfd->start_address = bfd_h_get_32 (abfd, buf); |
| 1650 | } |
| 1651 | } |
| 1652 | |
| 1653 | return 0; |
| 1654 | } |
| 1655 | |
| 1656 | int |
| 1657 | bfd_mach_o_scan (abfd, header, mdata) |
| 1658 | bfd *abfd; |
| 1659 | bfd_mach_o_header *header; |
| 1660 | bfd_mach_o_data_struct *mdata; |
| 1661 | { |
| 1662 | unsigned int i; |
| 1663 | enum bfd_architecture cputype; |
| 1664 | unsigned long cpusubtype; |
| 1665 | |
| 1666 | mdata->header = *header; |
| 1667 | mdata->symbols = NULL; |
| 1668 | |
| 1669 | abfd->flags = (abfd->xvec->object_flags |
| 1670 | | (abfd->flags & (BFD_IN_MEMORY | BFD_IO_FUNCS))); |
| 1671 | abfd->tdata.mach_o_data = mdata; |
| 1672 | |
| 1673 | bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype, |
| 1674 | &cputype, &cpusubtype); |
| 1675 | if (cputype == bfd_arch_unknown) |
| 1676 | { |
| 1677 | fprintf (stderr, "bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx\n", |
| 1678 | header->cputype, header->cpusubtype); |
| 1679 | return -1; |
| 1680 | } |
| 1681 | |
| 1682 | bfd_set_arch_mach (abfd, cputype, cpusubtype); |
| 1683 | |
| 1684 | if (header->ncmds != 0) |
| 1685 | { |
| 1686 | mdata->commands = |
| 1687 | ((bfd_mach_o_load_command *) |
| 1688 | bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command))); |
| 1689 | if (mdata->commands == NULL) |
| 1690 | return -1; |
| 1691 | |
| 1692 | for (i = 0; i < header->ncmds; i++) |
| 1693 | { |
| 1694 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
| 1695 | |
| 1696 | if (i == 0) |
| 1697 | cur->offset = 28; |
| 1698 | else |
| 1699 | { |
| 1700 | bfd_mach_o_load_command *prev = &mdata->commands[i - 1]; |
| 1701 | cur->offset = prev->offset + prev->len; |
| 1702 | } |
| 1703 | |
| 1704 | if (bfd_mach_o_scan_read_command (abfd, cur) < 0) |
| 1705 | return -1; |
| 1706 | } |
| 1707 | } |
| 1708 | |
| 1709 | if (bfd_mach_o_scan_start_address (abfd) < 0) |
| 1710 | { |
| 1711 | #if 0 |
| 1712 | fprintf (stderr, "bfd_mach_o_scan: unable to scan start address: %s\n", |
| 1713 | bfd_errmsg (bfd_get_error ())); |
| 1714 | abfd->tdata.mach_o_data = NULL; |
| 1715 | return -1; |
| 1716 | #endif |
| 1717 | } |
| 1718 | |
| 1719 | bfd_mach_o_flatten_sections (abfd); |
| 1720 | |
| 1721 | return 0; |
| 1722 | } |
| 1723 | |
| 1724 | bfd_boolean |
| 1725 | bfd_mach_o_mkobject (abfd) |
| 1726 | bfd *abfd; |
| 1727 | { |
| 1728 | bfd_mach_o_data_struct *mdata = NULL; |
| 1729 | |
| 1730 | mdata = ((bfd_mach_o_data_struct *) |
| 1731 | bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct))); |
| 1732 | if (mdata == NULL) |
| 1733 | return FALSE; |
| 1734 | abfd->tdata.mach_o_data = mdata; |
| 1735 | |
| 1736 | mdata->header.magic = 0; |
| 1737 | mdata->header.cputype = 0; |
| 1738 | mdata->header.cpusubtype = 0; |
| 1739 | mdata->header.filetype = 0; |
| 1740 | mdata->header.ncmds = 0; |
| 1741 | mdata->header.sizeofcmds = 0; |
| 1742 | mdata->header.flags = 0; |
| 1743 | mdata->header.byteorder = BFD_ENDIAN_UNKNOWN; |
| 1744 | mdata->commands = NULL; |
| 1745 | mdata->nsymbols = 0; |
| 1746 | mdata->symbols = NULL; |
| 1747 | mdata->nsects = 0; |
| 1748 | mdata->sections = NULL; |
| 1749 | mdata->ibfd = NULL; |
| 1750 | |
| 1751 | return TRUE; |
| 1752 | } |
| 1753 | |
| 1754 | const bfd_target * |
| 1755 | bfd_mach_o_object_p (abfd) |
| 1756 | bfd *abfd; |
| 1757 | { |
| 1758 | struct bfd_preserve preserve; |
| 1759 | bfd_mach_o_header header; |
| 1760 | |
| 1761 | preserve.marker = NULL; |
| 1762 | if (bfd_mach_o_read_header (abfd, &header) != 0) |
| 1763 | goto wrong; |
| 1764 | |
| 1765 | if (! (header.byteorder == BFD_ENDIAN_BIG |
| 1766 | || header.byteorder == BFD_ENDIAN_LITTLE)) |
| 1767 | { |
| 1768 | fprintf (stderr, "unknown header byte-order value 0x%lx\n", |
| 1769 | (long) header.byteorder); |
| 1770 | goto wrong; |
| 1771 | } |
| 1772 | |
| 1773 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
| 1774 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG |
| 1775 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) |
| 1776 | || (header.byteorder == BFD_ENDIAN_LITTLE |
| 1777 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE |
| 1778 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) |
| 1779 | goto wrong; |
| 1780 | |
| 1781 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
| 1782 | if (preserve.marker == NULL |
| 1783 | || !bfd_preserve_save (abfd, &preserve)) |
| 1784 | goto fail; |
| 1785 | |
| 1786 | if (bfd_mach_o_scan (abfd, &header, |
| 1787 | (bfd_mach_o_data_struct *) preserve.marker) != 0) |
| 1788 | goto wrong; |
| 1789 | |
| 1790 | bfd_preserve_finish (abfd, &preserve); |
| 1791 | return abfd->xvec; |
| 1792 | |
| 1793 | wrong: |
| 1794 | bfd_set_error (bfd_error_wrong_format); |
| 1795 | |
| 1796 | fail: |
| 1797 | if (preserve.marker != NULL) |
| 1798 | bfd_preserve_restore (abfd, &preserve); |
| 1799 | return NULL; |
| 1800 | } |
| 1801 | |
| 1802 | const bfd_target * |
| 1803 | bfd_mach_o_core_p (abfd) |
| 1804 | bfd *abfd; |
| 1805 | { |
| 1806 | struct bfd_preserve preserve; |
| 1807 | bfd_mach_o_header header; |
| 1808 | |
| 1809 | preserve.marker = NULL; |
| 1810 | if (bfd_mach_o_read_header (abfd, &header) != 0) |
| 1811 | goto wrong; |
| 1812 | |
| 1813 | if (! (header.byteorder == BFD_ENDIAN_BIG |
| 1814 | || header.byteorder == BFD_ENDIAN_LITTLE)) |
| 1815 | { |
| 1816 | fprintf (stderr, "unknown header byte-order value 0x%lx\n", |
| 1817 | (long) header.byteorder); |
| 1818 | abort (); |
| 1819 | } |
| 1820 | |
| 1821 | if (! ((header.byteorder == BFD_ENDIAN_BIG |
| 1822 | && abfd->xvec->byteorder == BFD_ENDIAN_BIG |
| 1823 | && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG) |
| 1824 | || (header.byteorder == BFD_ENDIAN_LITTLE |
| 1825 | && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE |
| 1826 | && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE))) |
| 1827 | goto wrong; |
| 1828 | |
| 1829 | if (header.filetype != BFD_MACH_O_MH_CORE) |
| 1830 | goto wrong; |
| 1831 | |
| 1832 | preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct)); |
| 1833 | if (preserve.marker == NULL |
| 1834 | || !bfd_preserve_save (abfd, &preserve)) |
| 1835 | goto fail; |
| 1836 | |
| 1837 | if (bfd_mach_o_scan (abfd, &header, |
| 1838 | (bfd_mach_o_data_struct *) preserve.marker) != 0) |
| 1839 | goto wrong; |
| 1840 | |
| 1841 | bfd_preserve_finish (abfd, &preserve); |
| 1842 | return abfd->xvec; |
| 1843 | |
| 1844 | wrong: |
| 1845 | bfd_set_error (bfd_error_wrong_format); |
| 1846 | |
| 1847 | fail: |
| 1848 | if (preserve.marker != NULL) |
| 1849 | bfd_preserve_restore (abfd, &preserve); |
| 1850 | return NULL; |
| 1851 | } |
| 1852 | |
| 1853 | typedef struct mach_o_fat_archentry |
| 1854 | { |
| 1855 | unsigned long cputype; |
| 1856 | unsigned long cpusubtype; |
| 1857 | unsigned long offset; |
| 1858 | unsigned long size; |
| 1859 | unsigned long align; |
| 1860 | bfd *abfd; |
| 1861 | } mach_o_fat_archentry; |
| 1862 | |
| 1863 | typedef struct mach_o_fat_data_struct |
| 1864 | { |
| 1865 | unsigned long magic; |
| 1866 | unsigned long nfat_arch; |
| 1867 | mach_o_fat_archentry *archentries; |
| 1868 | } mach_o_fat_data_struct; |
| 1869 | |
| 1870 | const bfd_target * |
| 1871 | bfd_mach_o_archive_p (abfd) |
| 1872 | bfd *abfd; |
| 1873 | { |
| 1874 | mach_o_fat_data_struct *adata = NULL; |
| 1875 | unsigned char buf[20]; |
| 1876 | unsigned long i; |
| 1877 | |
| 1878 | bfd_seek (abfd, 0, SEEK_SET); |
| 1879 | if (bfd_bread ((PTR) buf, 8, abfd) != 8) |
| 1880 | goto error; |
| 1881 | |
| 1882 | adata = (mach_o_fat_data_struct *) |
| 1883 | bfd_alloc (abfd, sizeof (mach_o_fat_data_struct)); |
| 1884 | if (adata == NULL) |
| 1885 | goto error; |
| 1886 | |
| 1887 | adata->magic = bfd_getb32 (buf); |
| 1888 | adata->nfat_arch = bfd_getb32 (buf + 4); |
| 1889 | if (adata->magic != 0xcafebabe) |
| 1890 | goto error; |
| 1891 | |
| 1892 | adata->archentries = (mach_o_fat_archentry *) |
| 1893 | bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry)); |
| 1894 | if (adata->archentries == NULL) |
| 1895 | goto error; |
| 1896 | |
| 1897 | for (i = 0; i < adata->nfat_arch; i++) |
| 1898 | { |
| 1899 | bfd_seek (abfd, 8 + 20 * i, SEEK_SET); |
| 1900 | |
| 1901 | if (bfd_bread ((PTR) buf, 20, abfd) != 20) |
| 1902 | goto error; |
| 1903 | adata->archentries[i].cputype = bfd_getb32 (buf); |
| 1904 | adata->archentries[i].cpusubtype = bfd_getb32 (buf + 4); |
| 1905 | adata->archentries[i].offset = bfd_getb32 (buf + 8); |
| 1906 | adata->archentries[i].size = bfd_getb32 (buf + 12); |
| 1907 | adata->archentries[i].align = bfd_getb32 (buf + 16); |
| 1908 | adata->archentries[i].abfd = NULL; |
| 1909 | } |
| 1910 | |
| 1911 | abfd->tdata.mach_o_fat_data = adata; |
| 1912 | return abfd->xvec; |
| 1913 | |
| 1914 | error: |
| 1915 | if (adata != NULL) |
| 1916 | bfd_release (abfd, adata); |
| 1917 | bfd_set_error (bfd_error_wrong_format); |
| 1918 | return NULL; |
| 1919 | } |
| 1920 | |
| 1921 | bfd * |
| 1922 | bfd_mach_o_openr_next_archived_file (archive, prev) |
| 1923 | bfd *archive; |
| 1924 | bfd *prev; |
| 1925 | { |
| 1926 | mach_o_fat_data_struct *adata; |
| 1927 | mach_o_fat_archentry *entry = NULL; |
| 1928 | unsigned long i; |
| 1929 | |
| 1930 | adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data; |
| 1931 | BFD_ASSERT (adata != NULL); |
| 1932 | |
| 1933 | /* Find index of previous entry. */ |
| 1934 | if (prev == NULL) |
| 1935 | i = 0; /* Start at first one. */ |
| 1936 | else |
| 1937 | { |
| 1938 | for (i = 0; i < adata->nfat_arch; i++) |
| 1939 | { |
| 1940 | if (adata->archentries[i].abfd == prev) |
| 1941 | break; |
| 1942 | } |
| 1943 | |
| 1944 | if (i == adata->nfat_arch) |
| 1945 | { |
| 1946 | /* Not found. */ |
| 1947 | bfd_set_error (bfd_error_bad_value); |
| 1948 | return NULL; |
| 1949 | } |
| 1950 | i++; /* Get next entry. */ |
| 1951 | } |
| 1952 | |
| 1953 | if (i >= adata->nfat_arch) |
| 1954 | { |
| 1955 | bfd_set_error (bfd_error_no_more_archived_files); |
| 1956 | return NULL; |
| 1957 | } |
| 1958 | |
| 1959 | entry = &adata->archentries[i]; |
| 1960 | if (entry->abfd == NULL) |
| 1961 | { |
| 1962 | bfd *nbfd = _bfd_new_bfd_contained_in (archive); |
| 1963 | char *s = NULL; |
| 1964 | |
| 1965 | if (nbfd == NULL) |
| 1966 | return NULL; |
| 1967 | |
| 1968 | nbfd->origin = entry->offset; |
| 1969 | s = bfd_malloc (strlen (archive->filename) + 1); |
| 1970 | if (s == NULL) |
| 1971 | return NULL; |
| 1972 | strcpy (s, archive->filename); |
| 1973 | nbfd->filename = s; |
| 1974 | nbfd->iostream = NULL; |
| 1975 | entry->abfd = nbfd; |
| 1976 | } |
| 1977 | |
| 1978 | return entry->abfd; |
| 1979 | } |
| 1980 | |
| 1981 | int |
| 1982 | bfd_mach_o_lookup_section (abfd, section, mcommand, msection) |
| 1983 | bfd *abfd; |
| 1984 | asection *section; |
| 1985 | bfd_mach_o_load_command **mcommand; |
| 1986 | bfd_mach_o_section **msection; |
| 1987 | { |
| 1988 | struct mach_o_data_struct *md = abfd->tdata.mach_o_data; |
| 1989 | unsigned int i, j, num; |
| 1990 | |
| 1991 | bfd_mach_o_load_command *ncmd = NULL; |
| 1992 | bfd_mach_o_section *nsect = NULL; |
| 1993 | |
| 1994 | BFD_ASSERT (mcommand != NULL); |
| 1995 | BFD_ASSERT (msection != NULL); |
| 1996 | |
| 1997 | num = 0; |
| 1998 | for (i = 0; i < md->header.ncmds; i++) |
| 1999 | { |
| 2000 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; |
| 2001 | struct bfd_mach_o_segment_command *seg = NULL; |
| 2002 | |
| 2003 | if (cmd->type != BFD_MACH_O_LC_SEGMENT) |
| 2004 | continue; |
| 2005 | seg = &cmd->command.segment; |
| 2006 | |
| 2007 | if (seg->segment == section) |
| 2008 | { |
| 2009 | if (num == 0) |
| 2010 | ncmd = cmd; |
| 2011 | num++; |
| 2012 | } |
| 2013 | |
| 2014 | for (j = 0; j < seg->nsects; j++) |
| 2015 | { |
| 2016 | struct bfd_mach_o_section *sect = &seg->sections[j]; |
| 2017 | |
| 2018 | if (sect->bfdsection == section) |
| 2019 | { |
| 2020 | if (num == 0) |
| 2021 | nsect = sect; |
| 2022 | num++; |
| 2023 | } |
| 2024 | } |
| 2025 | } |
| 2026 | |
| 2027 | *mcommand = ncmd; |
| 2028 | *msection = nsect; |
| 2029 | return num; |
| 2030 | } |
| 2031 | |
| 2032 | int |
| 2033 | bfd_mach_o_lookup_command (abfd, type, mcommand) |
| 2034 | bfd *abfd; |
| 2035 | bfd_mach_o_load_command_type type; |
| 2036 | bfd_mach_o_load_command **mcommand; |
| 2037 | { |
| 2038 | struct mach_o_data_struct *md = NULL; |
| 2039 | bfd_mach_o_load_command *ncmd = NULL; |
| 2040 | unsigned int i, num; |
| 2041 | |
| 2042 | md = abfd->tdata.mach_o_data; |
| 2043 | |
| 2044 | BFD_ASSERT (md != NULL); |
| 2045 | BFD_ASSERT (mcommand != NULL); |
| 2046 | |
| 2047 | num = 0; |
| 2048 | for (i = 0; i < md->header.ncmds; i++) |
| 2049 | { |
| 2050 | struct bfd_mach_o_load_command *cmd = &md->commands[i]; |
| 2051 | |
| 2052 | if (cmd->type != type) |
| 2053 | continue; |
| 2054 | |
| 2055 | if (num == 0) |
| 2056 | ncmd = cmd; |
| 2057 | num++; |
| 2058 | } |
| 2059 | |
| 2060 | *mcommand = ncmd; |
| 2061 | return num; |
| 2062 | } |
| 2063 | |
| 2064 | unsigned long |
| 2065 | bfd_mach_o_stack_addr (type) |
| 2066 | enum bfd_mach_o_cpu_type type; |
| 2067 | { |
| 2068 | switch (type) |
| 2069 | { |
| 2070 | case BFD_MACH_O_CPU_TYPE_MC680x0: |
| 2071 | return 0x04000000; |
| 2072 | case BFD_MACH_O_CPU_TYPE_MC88000: |
| 2073 | return 0xffffe000; |
| 2074 | case BFD_MACH_O_CPU_TYPE_POWERPC: |
| 2075 | return 0xc0000000; |
| 2076 | case BFD_MACH_O_CPU_TYPE_I386: |
| 2077 | return 0xc0000000; |
| 2078 | case BFD_MACH_O_CPU_TYPE_SPARC: |
| 2079 | return 0xf0000000; |
| 2080 | case BFD_MACH_O_CPU_TYPE_I860: |
| 2081 | return 0; |
| 2082 | case BFD_MACH_O_CPU_TYPE_HPPA: |
| 2083 | return 0xc0000000 - 0x04000000; |
| 2084 | default: |
| 2085 | return 0; |
| 2086 | } |
| 2087 | } |
| 2088 | |
| 2089 | int |
| 2090 | bfd_mach_o_core_fetch_environment (abfd, rbuf, rlen) |
| 2091 | bfd *abfd; |
| 2092 | unsigned char **rbuf; |
| 2093 | unsigned int *rlen; |
| 2094 | { |
| 2095 | bfd_mach_o_data_struct *mdata = abfd->tdata.mach_o_data; |
| 2096 | unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype); |
| 2097 | unsigned int i = 0; |
| 2098 | |
| 2099 | for (i = 0; i < mdata->header.ncmds; i++) |
| 2100 | { |
| 2101 | bfd_mach_o_load_command *cur = &mdata->commands[i]; |
| 2102 | bfd_mach_o_segment_command *seg = NULL; |
| 2103 | |
| 2104 | if (cur->type != BFD_MACH_O_LC_SEGMENT) |
| 2105 | continue; |
| 2106 | |
| 2107 | seg = &cur->command.segment; |
| 2108 | |
| 2109 | if ((seg->vmaddr + seg->vmsize) == stackaddr) |
| 2110 | { |
| 2111 | unsigned long start = seg->fileoff; |
| 2112 | unsigned long end = seg->fileoff + seg->filesize; |
| 2113 | unsigned char *buf = bfd_malloc (1024); |
| 2114 | unsigned long size = 1024; |
| 2115 | |
| 2116 | for (;;) |
| 2117 | { |
| 2118 | bfd_size_type nread = 0; |
| 2119 | unsigned long offset; |
| 2120 | int found_nonnull = 0; |
| 2121 | |
| 2122 | if (size > (end - start)) |
| 2123 | size = (end - start); |
| 2124 | |
| 2125 | buf = bfd_realloc (buf, size); |
| 2126 | |
| 2127 | bfd_seek (abfd, end - size, SEEK_SET); |
| 2128 | nread = bfd_bread (buf, size, abfd); |
| 2129 | |
| 2130 | if (nread != size) |
| 2131 | return -1; |
| 2132 | |
| 2133 | for (offset = 4; offset <= size; offset += 4) |
| 2134 | { |
| 2135 | unsigned long val; |
| 2136 | |
| 2137 | val = *((unsigned long *) (buf + size - offset)); |
| 2138 | if (! found_nonnull) |
| 2139 | { |
| 2140 | if (val != 0) |
| 2141 | found_nonnull = 1; |
| 2142 | } |
| 2143 | else if (val == 0x0) |
| 2144 | { |
| 2145 | unsigned long bottom; |
| 2146 | unsigned long top; |
| 2147 | |
| 2148 | bottom = seg->fileoff + seg->filesize - offset; |
| 2149 | top = seg->fileoff + seg->filesize - 4; |
| 2150 | *rbuf = bfd_malloc (top - bottom); |
| 2151 | *rlen = top - bottom; |
| 2152 | |
| 2153 | memcpy (*rbuf, buf + size - *rlen, *rlen); |
| 2154 | return 0; |
| 2155 | } |
| 2156 | } |
| 2157 | |
| 2158 | if (size == (end - start)) |
| 2159 | break; |
| 2160 | |
| 2161 | size *= 2; |
| 2162 | } |
| 2163 | } |
| 2164 | } |
| 2165 | |
| 2166 | return -1; |
| 2167 | } |
| 2168 | |
| 2169 | char * |
| 2170 | bfd_mach_o_core_file_failing_command (abfd) |
| 2171 | bfd *abfd; |
| 2172 | { |
| 2173 | unsigned char *buf = NULL; |
| 2174 | unsigned int len = 0; |
| 2175 | int ret = -1; |
| 2176 | |
| 2177 | ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len); |
| 2178 | if (ret < 0) |
| 2179 | return NULL; |
| 2180 | |
| 2181 | return buf; |
| 2182 | } |
| 2183 | |
| 2184 | int |
| 2185 | bfd_mach_o_core_file_failing_signal (abfd) |
| 2186 | bfd *abfd ATTRIBUTE_UNUSED; |
| 2187 | { |
| 2188 | return 0; |
| 2189 | } |
| 2190 | |
| 2191 | bfd_boolean |
| 2192 | bfd_mach_o_core_file_matches_executable_p (core_bfd, exec_bfd) |
| 2193 | bfd *core_bfd ATTRIBUTE_UNUSED; |
| 2194 | bfd *exec_bfd ATTRIBUTE_UNUSED; |
| 2195 | { |
| 2196 | return TRUE; |
| 2197 | } |
| 2198 | |
| 2199 | #define TARGET_NAME mach_o_be_vec |
| 2200 | #define TARGET_STRING "mach-o-be" |
| 2201 | #define TARGET_BIG_ENDIAN 1 |
| 2202 | #define TARGET_ARCHIVE 0 |
| 2203 | |
| 2204 | #include "mach-o-target.c" |
| 2205 | |
| 2206 | #undef TARGET_NAME |
| 2207 | #undef TARGET_STRING |
| 2208 | #undef TARGET_BIG_ENDIAN |
| 2209 | #undef TARGET_ARCHIVE |
| 2210 | |
| 2211 | #define TARGET_NAME mach_o_le_vec |
| 2212 | #define TARGET_STRING "mach-o-le" |
| 2213 | #define TARGET_BIG_ENDIAN 0 |
| 2214 | #define TARGET_ARCHIVE 0 |
| 2215 | |
| 2216 | #include "mach-o-target.c" |
| 2217 | |
| 2218 | #undef TARGET_NAME |
| 2219 | #undef TARGET_STRING |
| 2220 | #undef TARGET_BIG_ENDIAN |
| 2221 | #undef TARGET_ARCHIVE |
| 2222 | |
| 2223 | #define TARGET_NAME mach_o_fat_vec |
| 2224 | #define TARGET_STRING "mach-o-fat" |
| 2225 | #define TARGET_BIG_ENDIAN 1 |
| 2226 | #define TARGET_ARCHIVE 1 |
| 2227 | |
| 2228 | #include "mach-o-target.c" |
| 2229 | |
| 2230 | #undef TARGET_NAME |
| 2231 | #undef TARGET_STRING |
| 2232 | #undef TARGET_BIG_ENDIAN |
| 2233 | #undef TARGET_ARCHIVE |