| 1 | /* BFD back-end for IBM RS/6000 "XCOFF64" files. |
| 2 | Copyright 2000, 2001 |
| 3 | Free Software Foundation, Inc. |
| 4 | Written Clinton Popetz. |
| 5 | Contributed by Cygnus Support. |
| 6 | |
| 7 | This file is part of BFD, the Binary File Descriptor library. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 22 | |
| 23 | #include "bfd.h" |
| 24 | #include "sysdep.h" |
| 25 | #include "bfdlink.h" |
| 26 | #include "libbfd.h" |
| 27 | #include "coff/internal.h" |
| 28 | #include "coff/xcoff.h" |
| 29 | #include "coff/rs6k64.h" |
| 30 | #include "libcoff.h" |
| 31 | #include "libxcoff.h" |
| 32 | |
| 33 | #define GET_FILEHDR_SYMPTR bfd_h_get_64 |
| 34 | #define PUT_FILEHDR_SYMPTR bfd_h_put_64 |
| 35 | #define GET_AOUTHDR_DATA_START bfd_h_get_64 |
| 36 | #define PUT_AOUTHDR_DATA_START bfd_h_put_64 |
| 37 | #define GET_AOUTHDR_TEXT_START bfd_h_get_64 |
| 38 | #define PUT_AOUTHDR_TEXT_START bfd_h_put_64 |
| 39 | #define GET_AOUTHDR_TSIZE bfd_h_get_64 |
| 40 | #define PUT_AOUTHDR_TSIZE bfd_h_put_64 |
| 41 | #define GET_AOUTHDR_DSIZE bfd_h_get_64 |
| 42 | #define PUT_AOUTHDR_DSIZE bfd_h_put_64 |
| 43 | #define GET_AOUTHDR_BSIZE bfd_h_get_64 |
| 44 | #define PUT_AOUTHDR_BSIZE bfd_h_put_64 |
| 45 | #define GET_AOUTHDR_ENTRY bfd_h_get_64 |
| 46 | #define PUT_AOUTHDR_ENTRY bfd_h_put_64 |
| 47 | #define GET_SCNHDR_PADDR bfd_h_get_64 |
| 48 | #define PUT_SCNHDR_PADDR bfd_h_put_64 |
| 49 | #define GET_SCNHDR_VADDR bfd_h_get_64 |
| 50 | #define PUT_SCNHDR_VADDR bfd_h_put_64 |
| 51 | #define GET_SCNHDR_SIZE bfd_h_get_64 |
| 52 | #define PUT_SCNHDR_SIZE bfd_h_put_64 |
| 53 | #define GET_SCNHDR_SCNPTR bfd_h_get_64 |
| 54 | #define PUT_SCNHDR_SCNPTR bfd_h_put_64 |
| 55 | #define GET_SCNHDR_RELPTR bfd_h_get_64 |
| 56 | #define PUT_SCNHDR_RELPTR bfd_h_put_64 |
| 57 | #define GET_SCNHDR_LNNOPTR bfd_h_get_64 |
| 58 | #define PUT_SCNHDR_LNNOPTR bfd_h_put_64 |
| 59 | #define GET_SCNHDR_NRELOC bfd_h_get_32 |
| 60 | #define MAX_SCNHDR_NRELOC 0xffffffff |
| 61 | #define PUT_SCNHDR_NRELOC bfd_h_put_32 |
| 62 | #define GET_SCNHDR_NLNNO bfd_h_get_32 |
| 63 | #define MAX_SCNHDR_NLNNO 0xffffffff |
| 64 | #define PUT_SCNHDR_NLNNO bfd_h_put_32 |
| 65 | #define GET_RELOC_VADDR bfd_h_get_64 |
| 66 | #define PUT_RELOC_VADDR bfd_h_put_64 |
| 67 | |
| 68 | #define COFF_FORCE_SYMBOLS_IN_STRINGS |
| 69 | #define COFF_DEBUG_STRING_WIDE_PREFIX |
| 70 | |
| 71 | |
| 72 | #define COFF_ADJUST_SCNHDR_OUT_POST(ABFD,INT,EXT) \ |
| 73 | do { \ |
| 74 | memset (((SCNHDR *)EXT)->s_pad, 0, sizeof (((SCNHDR *)EXT)->s_pad));\ |
| 75 | } while(0) |
| 76 | |
| 77 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
| 78 | from smaller values. Start with zero, widen, *then* decrement. */ |
| 79 | #define MINUS_ONE (((bfd_vma)0) - 1) |
| 80 | |
| 81 | |
| 82 | #define NO_COFF_LINENOS |
| 83 | |
| 84 | #define coff_SWAP_lineno_in _bfd_xcoff64_swap_lineno_in |
| 85 | #define coff_SWAP_lineno_out _bfd_xcoff64_swap_lineno_out |
| 86 | |
| 87 | #define PUTWORD bfd_h_put_32 |
| 88 | #define PUTHALF bfd_h_put_16 |
| 89 | #define PUTBYTE bfd_h_put_8 |
| 90 | #define GETWORD bfd_h_get_32 |
| 91 | #define GETHALF bfd_h_get_16 |
| 92 | #define GETBYTE bfd_h_get_8 |
| 93 | |
| 94 | |
| 95 | /* For XCOFF64, the effective width of symndx changes depending on |
| 96 | whether we are the first entry. Sigh. */ |
| 97 | static void |
| 98 | _bfd_xcoff64_swap_lineno_in (abfd, ext1, in1) |
| 99 | bfd *abfd; |
| 100 | PTR ext1; |
| 101 | PTR in1; |
| 102 | { |
| 103 | LINENO *ext = (LINENO *)ext1; |
| 104 | struct internal_lineno *in = (struct internal_lineno *)in1; |
| 105 | |
| 106 | in->l_lnno = bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno)); |
| 107 | if (in->l_lnno == 0) |
| 108 | in->l_addr.l_symndx = |
| 109 | bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx); |
| 110 | else |
| 111 | in->l_addr.l_paddr = |
| 112 | bfd_h_get_64(abfd, (bfd_byte *) ext->l_addr.l_paddr); |
| 113 | } |
| 114 | |
| 115 | static unsigned int |
| 116 | _bfd_xcoff64_swap_lineno_out (abfd, inp, outp) |
| 117 | bfd *abfd; |
| 118 | PTR inp; |
| 119 | PTR outp; |
| 120 | { |
| 121 | struct internal_lineno *in = (struct internal_lineno *)inp; |
| 122 | struct external_lineno *ext = (struct external_lineno *)outp; |
| 123 | PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *) |
| 124 | ext->l_addr.l_symndx); |
| 125 | |
| 126 | bfd_h_put_32 (abfd, in->l_lnno, (bfd_byte *) (ext->l_lnno)); |
| 127 | if (in->l_lnno == 0) |
| 128 | bfd_h_put_32 (abfd, in->l_addr.l_symndx, (bfd_byte *)ext->l_addr.l_symndx); |
| 129 | else |
| 130 | bfd_h_put_64 (abfd, in->l_addr.l_paddr, (bfd_byte *)ext->l_addr.l_paddr); |
| 131 | |
| 132 | return bfd_coff_linesz (abfd); |
| 133 | } |
| 134 | |
| 135 | |
| 136 | static void _bfd_xcoff64_swap_sym_in PARAMS ((bfd *, PTR, PTR)); |
| 137 | static unsigned int _bfd_xcoff64_swap_sym_out PARAMS ((bfd *, PTR, PTR)); |
| 138 | static void _bfd_xcoff64_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR)); |
| 139 | static unsigned int _bfd_xcoff64_swap_aux_out PARAMS ((bfd *, PTR, int, int, int, int, PTR)); |
| 140 | |
| 141 | static void |
| 142 | _bfd_xcoff64_swap_sym_in (abfd, ext1, in1) |
| 143 | bfd *abfd; |
| 144 | PTR ext1; |
| 145 | PTR in1; |
| 146 | { |
| 147 | struct external_syment *ext = (struct external_syment *)ext1; |
| 148 | struct internal_syment *in = (struct internal_syment *)in1; |
| 149 | |
| 150 | in->_n._n_n._n_zeroes = 0; |
| 151 | in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e_offset); |
| 152 | in->n_value = bfd_h_get_64(abfd, (bfd_byte *) ext->e_value); |
| 153 | in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum); |
| 154 | in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type); |
| 155 | in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); |
| 156 | in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); |
| 157 | } |
| 158 | |
| 159 | static unsigned int |
| 160 | _bfd_xcoff64_swap_sym_out (abfd, inp, extp) |
| 161 | bfd *abfd; |
| 162 | PTR inp; |
| 163 | PTR extp; |
| 164 | { |
| 165 | struct internal_syment *in = (struct internal_syment *)inp; |
| 166 | struct external_syment *ext =(struct external_syment *)extp; |
| 167 | |
| 168 | bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e_offset); |
| 169 | bfd_h_put_64(abfd, in->n_value , (bfd_byte *) ext->e_value); |
| 170 | bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum); |
| 171 | bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type); |
| 172 | bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass); |
| 173 | bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux); |
| 174 | return bfd_coff_symesz (abfd); |
| 175 | } |
| 176 | |
| 177 | static void |
| 178 | _bfd_xcoff64_swap_aux_in (abfd, ext1, type, class, indx, numaux, in1) |
| 179 | bfd *abfd; |
| 180 | PTR ext1; |
| 181 | int type; |
| 182 | int class; |
| 183 | int indx; |
| 184 | int numaux; |
| 185 | PTR in1; |
| 186 | { |
| 187 | union external_auxent *ext = (union external_auxent *)ext1; |
| 188 | union internal_auxent *in = (union internal_auxent *)in1; |
| 189 | |
| 190 | switch (class) { |
| 191 | case C_FILE: |
| 192 | if (ext->x_file.x_n.x_zeroes == 0) { |
| 193 | in->x_file.x_n.x_zeroes = 0; |
| 194 | in->x_file.x_n.x_offset = |
| 195 | bfd_h_get_32(abfd, (bfd_byte *) ext->x_file.x_n.x_offset); |
| 196 | } else { |
| 197 | memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN); |
| 198 | } |
| 199 | goto end; |
| 200 | |
| 201 | /* RS/6000 "csect" auxents */ |
| 202 | case C_EXT: |
| 203 | case C_HIDEXT: |
| 204 | if (indx + 1 == numaux) |
| 205 | { |
| 206 | bfd_signed_vma h = 0; |
| 207 | bfd_vma l = 0; |
| 208 | |
| 209 | h = bfd_h_get_signed_32(abfd, ext->x_csect.x_scnlen_hi); |
| 210 | l = bfd_h_get_32 (abfd, ext->x_csect.x_scnlen_lo); |
| 211 | |
| 212 | in->x_csect.x_scnlen.l = h << 32 | (l & 0xffffffff); |
| 213 | |
| 214 | in->x_csect.x_parmhash = bfd_h_get_32 (abfd, |
| 215 | ext->x_csect.x_parmhash); |
| 216 | in->x_csect.x_snhash = bfd_h_get_16 (abfd, ext->x_csect.x_snhash); |
| 217 | /* We don't have to hack bitfields in x_smtyp because it's |
| 218 | defined by shifts-and-ands, which are equivalent on all |
| 219 | byte orders. */ |
| 220 | in->x_csect.x_smtyp = bfd_h_get_8 (abfd, ext->x_csect.x_smtyp); |
| 221 | in->x_csect.x_smclas = bfd_h_get_8 (abfd, ext->x_csect.x_smclas); |
| 222 | goto end; |
| 223 | } |
| 224 | break; |
| 225 | |
| 226 | case C_STAT: |
| 227 | case C_LEAFSTAT: |
| 228 | case C_HIDDEN: |
| 229 | if (type == T_NULL) { |
| 230 | /* PE defines some extra fields; we zero them out for |
| 231 | safety. */ |
| 232 | in->x_scn.x_checksum = 0; |
| 233 | in->x_scn.x_associated = 0; |
| 234 | in->x_scn.x_comdat = 0; |
| 235 | |
| 236 | goto end; |
| 237 | } |
| 238 | break; |
| 239 | } |
| 240 | |
| 241 | if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class)) |
| 242 | { |
| 243 | in->x_sym.x_fcnary.x_fcn.x_lnnoptr = bfd_h_get_64(abfd, (bfd_byte *) |
| 244 | ext->x_sym.x_fcnary.x_fcn.x_lnnoptr); |
| 245 | in->x_sym.x_fcnary.x_fcn.x_endndx.l = bfd_h_get_32(abfd, (bfd_byte *) |
| 246 | ext->x_sym.x_fcnary.x_fcn.x_endndx); |
| 247 | } |
| 248 | if (ISFCN(type)) { |
| 249 | in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_fsize); |
| 250 | } |
| 251 | else { |
| 252 | in->x_sym.x_misc.x_lnsz.x_lnno = bfd_h_get_32(abfd, (bfd_byte *) |
| 253 | ext->x_sym.x_fcnary.x_lnsz.x_lnno); |
| 254 | in->x_sym.x_misc.x_lnsz.x_size = bfd_h_get_16(abfd, (bfd_byte *) |
| 255 | ext->x_sym.x_fcnary.x_lnsz.x_size); |
| 256 | } |
| 257 | |
| 258 | end: ; |
| 259 | /* the semicolon is because MSVC doesn't like labels at |
| 260 | end of block. */ |
| 261 | |
| 262 | } |
| 263 | |
| 264 | |
| 265 | |
| 266 | static unsigned int |
| 267 | _bfd_xcoff64_swap_aux_out (abfd, inp, type, class, indx, numaux, extp) |
| 268 | bfd *abfd; |
| 269 | PTR inp; |
| 270 | int type; |
| 271 | int class; |
| 272 | int indx ATTRIBUTE_UNUSED; |
| 273 | int numaux ATTRIBUTE_UNUSED; |
| 274 | PTR extp; |
| 275 | { |
| 276 | union internal_auxent *in = (union internal_auxent *)inp; |
| 277 | union external_auxent *ext = (union external_auxent *)extp; |
| 278 | |
| 279 | memset((PTR)ext, 0, bfd_coff_auxesz (abfd)); |
| 280 | switch (class) |
| 281 | { |
| 282 | case C_FILE: |
| 283 | if (ext->x_file.x_n.x_zeroes == 0) { |
| 284 | bfd_h_put_32 (abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes); |
| 285 | bfd_h_put_32 (abfd, in->x_file.x_n.x_offset, |
| 286 | (bfd_byte *) ext->x_file.x_n.x_offset); |
| 287 | } else { |
| 288 | memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN); |
| 289 | } |
| 290 | bfd_h_put_8 (abfd, _AUX_FILE, (bfd_byte *) ext->x_auxtype.x_auxtype); |
| 291 | goto end; |
| 292 | |
| 293 | /* RS/6000 "csect" auxents */ |
| 294 | case C_EXT: |
| 295 | case C_HIDEXT: |
| 296 | if (indx + 1 == numaux) |
| 297 | { |
| 298 | bfd_vma temp; |
| 299 | |
| 300 | temp = in->x_csect.x_scnlen.l & 0xffffffff; |
| 301 | bfd_h_put_32 (abfd, temp, ext->x_csect.x_scnlen_lo); |
| 302 | temp = in->x_csect.x_scnlen.l >> 32; |
| 303 | bfd_h_put_32 (abfd, temp, ext->x_csect.x_scnlen_hi); |
| 304 | bfd_h_put_32 (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash); |
| 305 | bfd_h_put_16 (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash); |
| 306 | /* We don't have to hack bitfields in x_smtyp because it's |
| 307 | defined by shifts-and-ands, which are equivalent on all |
| 308 | byte orders. */ |
| 309 | bfd_h_put_8 (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp); |
| 310 | bfd_h_put_8 (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas); |
| 311 | bfd_h_put_8 (abfd, _AUX_CSECT, (bfd_byte *) ext->x_auxtype.x_auxtype); |
| 312 | goto end; |
| 313 | } |
| 314 | break; |
| 315 | |
| 316 | case C_STAT: |
| 317 | case C_LEAFSTAT: |
| 318 | case C_HIDDEN: |
| 319 | if (type == T_NULL) { |
| 320 | goto end; |
| 321 | } |
| 322 | break; |
| 323 | } |
| 324 | |
| 325 | if (class == C_BLOCK || class == C_FCN || ISFCN (type) || ISTAG (class)) |
| 326 | { |
| 327 | bfd_h_put_64(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, |
| 328 | (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr); |
| 329 | bfd_h_put_8 (abfd, _AUX_FCN, (bfd_byte *) ext->x_auxtype.x_auxtype); |
| 330 | bfd_h_put_32(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, |
| 331 | (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx); |
| 332 | } |
| 333 | if (ISFCN (type)) |
| 334 | bfd_h_put_32 (abfd, in->x_sym.x_misc.x_fsize, |
| 335 | (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_fsize); |
| 336 | else |
| 337 | { |
| 338 | bfd_h_put_32(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, |
| 339 | (bfd_byte *)ext->x_sym.x_fcnary.x_lnsz.x_lnno); |
| 340 | bfd_h_put_16(abfd, in->x_sym.x_misc.x_lnsz.x_size, |
| 341 | (bfd_byte *)ext->x_sym.x_fcnary.x_lnsz.x_size); |
| 342 | } |
| 343 | |
| 344 | end: |
| 345 | |
| 346 | return bfd_coff_auxesz (abfd); |
| 347 | } |
| 348 | |
| 349 | static boolean |
| 350 | _bfd_xcoff64_put_symbol_name (bfd *abfd, struct bfd_strtab_hash *strtab, |
| 351 | struct internal_syment *sym, |
| 352 | const char *name) { |
| 353 | boolean hash; |
| 354 | bfd_size_type indx; |
| 355 | |
| 356 | hash = true; |
| 357 | |
| 358 | if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0) |
| 359 | hash = false; |
| 360 | |
| 361 | indx = _bfd_stringtab_add (strtab, name, hash, false); |
| 362 | |
| 363 | if (indx == (bfd_size_type) -1) |
| 364 | return false; |
| 365 | |
| 366 | sym->_n._n_n._n_zeroes = 0; |
| 367 | sym->_n._n_n._n_offset = STRING_SIZE_SIZE + indx; |
| 368 | |
| 369 | return true; |
| 370 | } |
| 371 | |
| 372 | static boolean |
| 373 | _bfd_xcoff64_put_ldsymbol_name (abfd, ldinfo, ldsym, name) |
| 374 | bfd *abfd ATTRIBUTE_UNUSED; |
| 375 | struct xcoff_loader_info *ldinfo; |
| 376 | struct internal_ldsym *ldsym; |
| 377 | const char *name; |
| 378 | { |
| 379 | |
| 380 | size_t len; |
| 381 | len = strlen (name); |
| 382 | |
| 383 | if (ldinfo->string_size + len + 3 > ldinfo->string_alc){ |
| 384 | size_t newalc; |
| 385 | bfd_byte *newstrings; |
| 386 | |
| 387 | newalc = ldinfo->string_alc * 2; |
| 388 | if (newalc == 0) |
| 389 | newalc = 32; |
| 390 | while (ldinfo->string_size + len + 3 > newalc) |
| 391 | newalc *= 2; |
| 392 | |
| 393 | newstrings = ((bfd_byte *) |
| 394 | bfd_realloc ((PTR) ldinfo->strings, newalc)); |
| 395 | if (newstrings == NULL) { |
| 396 | ldinfo->failed = true; |
| 397 | return false; |
| 398 | } |
| 399 | ldinfo->string_alc = newalc; |
| 400 | ldinfo->strings = newstrings; |
| 401 | } |
| 402 | |
| 403 | bfd_put_16 (ldinfo->output_bfd, len + 1, |
| 404 | ldinfo->strings + ldinfo->string_size); |
| 405 | strcpy (ldinfo->strings + ldinfo->string_size + 2, name); |
| 406 | ldsym->_l._l_l._l_zeroes = 0; |
| 407 | ldsym->_l._l_l._l_offset = ldinfo->string_size + 2; |
| 408 | ldinfo->string_size += len + 3; |
| 409 | |
| 410 | return true; |
| 411 | } |
| 412 | |
| 413 | extern boolean _bfd_xcoff_mkobject PARAMS ((bfd *)); |
| 414 | extern boolean _bfd_xcoff_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |
| 415 | extern boolean _bfd_xcoff_is_local_label_name PARAMS ((bfd *, const char *)); |
| 416 | extern void xcoff64_rtype2howto |
| 417 | PARAMS ((arelent *, struct internal_reloc *)); |
| 418 | extern reloc_howto_type * xcoff64_reloc_type_lookup |
| 419 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| 420 | extern boolean _bfd_xcoff_slurp_armap PARAMS ((bfd *)); |
| 421 | extern PTR _bfd_xcoff_read_ar_hdr PARAMS ((bfd *)); |
| 422 | extern bfd *_bfd_xcoff_openr_next_archived_file PARAMS ((bfd *, bfd *)); |
| 423 | extern int _bfd_xcoff_generic_stat_arch_elt PARAMS ((bfd *, struct stat *)); |
| 424 | extern boolean _bfd_xcoff_write_armap |
| 425 | PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); |
| 426 | extern boolean _bfd_xcoff_write_archive_contents PARAMS ((bfd *)); |
| 427 | extern int _bfd_xcoff_sizeof_headers PARAMS ((bfd *, boolean)); |
| 428 | extern void _bfd_xcoff_swap_sym_in PARAMS ((bfd *, PTR, PTR)); |
| 429 | extern unsigned int _bfd_xcoff_swap_sym_out PARAMS ((bfd *, PTR, PTR)); |
| 430 | extern void _bfd_xcoff_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR)); |
| 431 | extern unsigned int _bfd_xcoff_swap_aux_out PARAMS ((bfd *, PTR, int, int, int, int, PTR)); |
| 432 | |
| 433 | /* coffcode.h needs these to be defined */ |
| 434 | /* Internalcoff.h and coffcode.h modify themselves based on these flags. */ |
| 435 | #define XCOFF64 |
| 436 | #define RS6000COFF_C 1 |
| 437 | |
| 438 | #define SELECT_RELOC(internal, howto) \ |
| 439 | { \ |
| 440 | internal.r_type = howto->type; \ |
| 441 | internal.r_size = \ |
| 442 | ((howto->complain_on_overflow == complain_overflow_signed \ |
| 443 | ? 0x80 \ |
| 444 | : 0) \ |
| 445 | | (howto->bitsize - 1)); \ |
| 446 | } |
| 447 | |
| 448 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) |
| 449 | #define COFF_LONG_FILENAMES |
| 450 | #define NO_COFF_SYMBOLS |
| 451 | #define RTYPE2HOWTO(cache_ptr, dst) xcoff64_rtype2howto (cache_ptr, dst) |
| 452 | #define coff_mkobject _bfd_xcoff_mkobject |
| 453 | #define coff_bfd_copy_private_bfd_data _bfd_xcoff_copy_private_bfd_data |
| 454 | #define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name |
| 455 | #define coff_bfd_reloc_type_lookup xcoff64_reloc_type_lookup |
| 456 | #ifdef AIX_CORE |
| 457 | extern const bfd_target * rs6000coff_core_p (); |
| 458 | extern boolean rs6000coff_core_file_matches_executable_p (); |
| 459 | extern char *rs6000coff_core_file_failing_command PARAMS ((bfd *abfd)); |
| 460 | extern int rs6000coff_core_file_failing_signal PARAMS ((bfd *abfd)); |
| 461 | #define CORE_FILE_P rs6000coff_core_p |
| 462 | #define coff_core_file_failing_command \ |
| 463 | rs6000coff_core_file_failing_command |
| 464 | #define coff_core_file_failing_signal \ |
| 465 | rs6000coff_core_file_failing_signal |
| 466 | #define coff_core_file_matches_executable_p \ |
| 467 | rs6000coff_core_file_matches_executable_p |
| 468 | #else |
| 469 | #define CORE_FILE_P _bfd_dummy_target |
| 470 | #define coff_core_file_failing_command \ |
| 471 | _bfd_nocore_core_file_failing_command |
| 472 | #define coff_core_file_failing_signal \ |
| 473 | _bfd_nocore_core_file_failing_signal |
| 474 | #define coff_core_file_matches_executable_p \ |
| 475 | _bfd_nocore_core_file_matches_executable_p |
| 476 | #endif |
| 477 | #define coff_SWAP_sym_in _bfd_xcoff64_swap_sym_in |
| 478 | #define coff_SWAP_sym_out _bfd_xcoff64_swap_sym_out |
| 479 | #define coff_SWAP_aux_in _bfd_xcoff64_swap_aux_in |
| 480 | #define coff_SWAP_aux_out _bfd_xcoff64_swap_aux_out |
| 481 | |
| 482 | |
| 483 | |
| 484 | #include "coffcode.h" |
| 485 | |
| 486 | /* Routines to swap information in the XCOFF .loader section. If we |
| 487 | ever need to write an XCOFF loader, this stuff will need to be |
| 488 | moved to another file shared by the linker (which XCOFF calls the |
| 489 | ``binder'') and the loader. */ |
| 490 | |
| 491 | /* Swap in the ldhdr structure. */ |
| 492 | |
| 493 | static void |
| 494 | xcoff64_swap_ldhdr_in (abfd, src, dst) |
| 495 | bfd *abfd; |
| 496 | const struct external_ldhdr *src; |
| 497 | struct internal_ldhdr *dst; |
| 498 | { |
| 499 | dst->l_version = bfd_get_32 (abfd, src->l_version); |
| 500 | dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms); |
| 501 | dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc); |
| 502 | dst->l_istlen = bfd_get_32 (abfd, src->l_istlen); |
| 503 | dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid); |
| 504 | dst->l_stlen = bfd_get_32 (abfd, src->l_stlen); |
| 505 | dst->l_impoff = bfd_get_64 (abfd, src->l_impoff); |
| 506 | dst->l_stoff = bfd_get_64 (abfd, src->l_stoff); |
| 507 | dst->l_symoff = bfd_get_64 (abfd, src->l_symoff); |
| 508 | dst->l_rldoff = bfd_get_64 (abfd, src->l_rldoff); |
| 509 | } |
| 510 | |
| 511 | /* Swap out the ldhdr structure. */ |
| 512 | |
| 513 | static void |
| 514 | xcoff64_swap_ldhdr_out (abfd, src, dst) |
| 515 | bfd *abfd; |
| 516 | const struct internal_ldhdr *src; |
| 517 | struct external_ldhdr *dst; |
| 518 | { |
| 519 | bfd_put_32 (abfd, src->l_version, dst->l_version); |
| 520 | bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms); |
| 521 | bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc); |
| 522 | bfd_put_32 (abfd, src->l_istlen, dst->l_istlen); |
| 523 | bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid); |
| 524 | bfd_put_32 (abfd, src->l_stlen, dst->l_stlen); |
| 525 | bfd_put_64 (abfd, src->l_impoff, dst->l_impoff); |
| 526 | bfd_put_64 (abfd, src->l_stoff, dst->l_stoff); |
| 527 | bfd_put_64 (abfd, src->l_symoff, dst->l_symoff); |
| 528 | bfd_put_64 (abfd, src->l_rldoff, dst->l_rldoff); |
| 529 | } |
| 530 | |
| 531 | /* Swap in the ldsym structure. */ |
| 532 | |
| 533 | static void |
| 534 | xcoff64_swap_ldsym_in (abfd, src, dst) |
| 535 | bfd *abfd; |
| 536 | const struct external_ldsym *src; |
| 537 | struct internal_ldsym *dst; |
| 538 | { |
| 539 | /* |
| 540 | * XCOFF64 does not use l_zeroes like XCOFF32 |
| 541 | * Set the internal l_zeroes to 0 so the common 32/64 code uses l_value |
| 542 | * as an offset into the loader symbol table |
| 543 | */ |
| 544 | dst->_l._l_l._l_zeroes = 0; |
| 545 | dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->l_offset); |
| 546 | dst->l_value = bfd_get_64 (abfd, src->l_value); |
| 547 | dst->l_scnum = bfd_get_16 (abfd, src->l_scnum); |
| 548 | dst->l_smtype = bfd_get_8 (abfd, src->l_smtype); |
| 549 | dst->l_smclas = bfd_get_8 (abfd, src->l_smclas); |
| 550 | dst->l_ifile = bfd_get_32 (abfd, src->l_ifile); |
| 551 | dst->l_parm = bfd_get_32 (abfd, src->l_parm); |
| 552 | } |
| 553 | |
| 554 | /* Swap out the ldsym structure. */ |
| 555 | |
| 556 | static void |
| 557 | xcoff64_swap_ldsym_out (abfd, src, dst) |
| 558 | bfd *abfd; |
| 559 | const struct internal_ldsym *src; |
| 560 | struct external_ldsym *dst; |
| 561 | { |
| 562 | bfd_put_64 (abfd, src->l_value, dst->l_value); |
| 563 | bfd_put_32 (abfd, src->_l._l_l._l_offset, dst->l_offset); |
| 564 | bfd_put_16 (abfd, src->l_scnum, dst->l_scnum); |
| 565 | bfd_put_8 (abfd, src->l_smtype, dst->l_smtype); |
| 566 | bfd_put_8 (abfd, src->l_smclas, dst->l_smclas); |
| 567 | bfd_put_32 (abfd, src->l_ifile, dst->l_ifile); |
| 568 | bfd_put_32 (abfd, src->l_parm, dst->l_parm); |
| 569 | } |
| 570 | |
| 571 | /* Swap in the ldrel structure. */ |
| 572 | |
| 573 | static void |
| 574 | xcoff64_swap_ldrel_in (abfd, src, dst) |
| 575 | bfd *abfd; |
| 576 | const struct external_ldrel *src; |
| 577 | struct internal_ldrel *dst; |
| 578 | { |
| 579 | dst->l_vaddr = bfd_get_64 (abfd, src->l_vaddr); |
| 580 | dst->l_symndx = bfd_get_32 (abfd, src->l_symndx); |
| 581 | dst->l_rtype = bfd_get_16 (abfd, src->l_rtype); |
| 582 | dst->l_rsecnm = bfd_get_16 (abfd, src->l_rsecnm); |
| 583 | } |
| 584 | |
| 585 | /* Swap out the ldrel structure. */ |
| 586 | |
| 587 | static void |
| 588 | xcoff64_swap_ldrel_out (abfd, src, dst) |
| 589 | bfd *abfd; |
| 590 | const struct internal_ldrel *src; |
| 591 | struct external_ldrel *dst; |
| 592 | { |
| 593 | bfd_put_64 (abfd, src->l_vaddr, dst->l_vaddr); |
| 594 | bfd_put_16 (abfd, src->l_rtype, dst->l_rtype); |
| 595 | bfd_put_16 (abfd, src->l_rsecnm, dst->l_rsecnm); |
| 596 | bfd_put_32 (abfd, src->l_symndx, dst->l_symndx); |
| 597 | } |
| 598 | |
| 599 | static boolean |
| 600 | xcoff64_write_object_contents (abfd) |
| 601 | bfd * abfd; |
| 602 | { |
| 603 | asection *current; |
| 604 | boolean hasrelocs = false; |
| 605 | boolean haslinno = false; |
| 606 | file_ptr scn_base; |
| 607 | file_ptr reloc_base; |
| 608 | file_ptr lineno_base; |
| 609 | file_ptr sym_base; |
| 610 | unsigned long reloc_size = 0; |
| 611 | unsigned long lnno_size = 0; |
| 612 | boolean long_section_names; |
| 613 | asection *text_sec = ((void *)0) ; |
| 614 | asection *data_sec = ((void *)0) ; |
| 615 | asection *bss_sec = ((void *)0) ; |
| 616 | struct internal_filehdr internal_f; |
| 617 | struct internal_aouthdr internal_a; |
| 618 | |
| 619 | bfd_set_error (bfd_error_system_call); |
| 620 | |
| 621 | if (abfd->output_has_begun == false) { |
| 622 | if (! bfd_coff_compute_section_file_positions (abfd)) |
| 623 | return false; |
| 624 | } |
| 625 | |
| 626 | /* Work out the size of the reloc and linno areas */ |
| 627 | reloc_base = obj_relocbase (abfd); |
| 628 | |
| 629 | for (current = abfd->sections; current != NULL; current = current->next) { |
| 630 | reloc_size += current->reloc_count * bfd_coff_relsz (abfd); |
| 631 | } |
| 632 | |
| 633 | lineno_base = reloc_base + reloc_size; |
| 634 | |
| 635 | /* Make a pass through the symbol table to count line number entries and |
| 636 | put them into the correct asections */ |
| 637 | lnno_size = coff_count_linenumbers (abfd) * bfd_coff_linesz (abfd); |
| 638 | |
| 639 | sym_base = lineno_base + lnno_size; |
| 640 | |
| 641 | /* Indicate in each section->line_filepos its actual file address */ |
| 642 | for (current = abfd->sections; current != NULL; current = current->next) { |
| 643 | if (current->lineno_count) { |
| 644 | current->line_filepos = lineno_base; |
| 645 | current->moving_line_filepos = lineno_base; |
| 646 | lineno_base += current->lineno_count * bfd_coff_linesz (abfd); |
| 647 | } else { |
| 648 | current->line_filepos = 0; |
| 649 | } |
| 650 | |
| 651 | if (current->reloc_count) { |
| 652 | current->rel_filepos = reloc_base; |
| 653 | reloc_base += current->reloc_count * bfd_coff_relsz (abfd); |
| 654 | } else { |
| 655 | current->rel_filepos = 0; |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | if ((abfd->flags & EXEC_P) != 0) { |
| 660 | scn_base = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); |
| 661 | internal_f.f_opthdr = bfd_coff_aoutsz (abfd); |
| 662 | } else { |
| 663 | scn_base = bfd_coff_filhsz (abfd); |
| 664 | internal_f.f_opthdr = 0; |
| 665 | } |
| 666 | |
| 667 | internal_f.f_nscns = 0; |
| 668 | |
| 669 | if (bfd_seek (abfd, scn_base, SEEK_SET) != 0) |
| 670 | return false; |
| 671 | |
| 672 | long_section_names = false; |
| 673 | for (current = abfd->sections; current != NULL; current = current->next) { |
| 674 | |
| 675 | struct internal_scnhdr section; |
| 676 | struct external_scnhdr buff; |
| 677 | |
| 678 | internal_f.f_nscns++; |
| 679 | |
| 680 | strncpy (section.s_name, current->name, SCNNMLEN); |
| 681 | |
| 682 | section.s_vaddr = current->vma; |
| 683 | section.s_paddr = current->lma; |
| 684 | section.s_size = current->_raw_size; |
| 685 | |
| 686 | /* |
| 687 | If this section has no size or is unloadable then the scnptr |
| 688 | will be 0 too |
| 689 | */ |
| 690 | if (current->_raw_size == 0 || |
| 691 | (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) { |
| 692 | section.s_scnptr = 0; |
| 693 | } else { |
| 694 | section.s_scnptr = current->filepos; |
| 695 | } |
| 696 | |
| 697 | section.s_relptr = current->rel_filepos; |
| 698 | section.s_lnnoptr = current->line_filepos; |
| 699 | section.s_nreloc = current->reloc_count; |
| 700 | |
| 701 | section.s_nlnno = current->lineno_count; |
| 702 | if (current->reloc_count != 0) |
| 703 | hasrelocs = true; |
| 704 | if (current->lineno_count != 0) |
| 705 | haslinno = true; |
| 706 | |
| 707 | section.s_flags = sec_to_styp_flags (current->name, current->flags); |
| 708 | |
| 709 | if (!strcmp (current->name, _TEXT)) { |
| 710 | text_sec = current; |
| 711 | } else if (!strcmp (current->name, _DATA)) { |
| 712 | data_sec = current; |
| 713 | } else if (!strcmp (current->name, _BSS)) { |
| 714 | bss_sec = current; |
| 715 | } |
| 716 | |
| 717 | if (bfd_coff_swap_scnhdr_out (abfd, §ion, &buff) == 0 |
| 718 | || bfd_write ((PTR) (&buff), 1, bfd_coff_scnhsz (abfd), abfd) |
| 719 | != bfd_coff_scnhsz (abfd)) |
| 720 | return false; |
| 721 | } |
| 722 | |
| 723 | internal_f.f_timdat = 0; |
| 724 | |
| 725 | internal_f.f_flags = 0; |
| 726 | |
| 727 | if (!hasrelocs) |
| 728 | internal_f.f_flags |= F_RELFLG; |
| 729 | if (!haslinno) |
| 730 | internal_f.f_flags |= F_LNNO; |
| 731 | if (abfd->flags & EXEC_P) |
| 732 | internal_f.f_flags |= F_EXEC; |
| 733 | |
| 734 | /* FIXME: this is wrong for PPC_PE! */ |
| 735 | if (bfd_little_endian (abfd)) |
| 736 | internal_f.f_flags |= F_AR32WR; |
| 737 | else |
| 738 | internal_f.f_flags |= F_AR32W; |
| 739 | |
| 740 | if ((abfd->flags & DYNAMIC) != 0) |
| 741 | internal_f.f_flags |= F_SHROBJ; |
| 742 | if (bfd_get_section_by_name (abfd, _LOADER) != NULL) |
| 743 | internal_f.f_flags |= F_DYNLOAD; |
| 744 | |
| 745 | memset (&internal_a, 0, sizeof internal_a); |
| 746 | |
| 747 | |
| 748 | /* |
| 749 | * This can only be called from the xcoff64 backend so the magic # must |
| 750 | * be for xcoff64 |
| 751 | */ |
| 752 | internal_f.f_magic = 0757; |
| 753 | |
| 754 | internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC : |
| 755 | (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC : |
| 756 | RS6K_AOUTHDR_OMAGIC; |
| 757 | |
| 758 | /* FIXME: Does anybody ever set this to another value? */ |
| 759 | internal_a.vstamp = 0; |
| 760 | |
| 761 | /* Now should write relocs, strings, syms */ |
| 762 | obj_sym_filepos (abfd) = sym_base; |
| 763 | |
| 764 | internal_f.f_symptr = 0; |
| 765 | internal_f.f_nsyms = 0; |
| 766 | |
| 767 | /* |
| 768 | * If bfd_get_symcount (abfd) != 0, then we are not using the COFF |
| 769 | * backend linker, and obj_raw_syment_count is not valid until after |
| 770 | * coff_write_symbols is called. |
| 771 | */ |
| 772 | if (bfd_get_symcount (abfd) != 0) { |
| 773 | int firstundef; |
| 774 | |
| 775 | if (!coff_renumber_symbols (abfd, &firstundef)) |
| 776 | return false; |
| 777 | coff_mangle_symbols (abfd); |
| 778 | if (! coff_write_symbols (abfd)) |
| 779 | return false; |
| 780 | if (! coff_write_linenumbers (abfd)) |
| 781 | return false; |
| 782 | if (! coff_write_relocs (abfd, firstundef)) |
| 783 | return false; |
| 784 | |
| 785 | internal_f.f_symptr = sym_base; |
| 786 | internal_f.f_nsyms = bfd_get_symcount (abfd); |
| 787 | } else if (obj_raw_syment_count (abfd) != 0) { |
| 788 | internal_f.f_symptr = sym_base; |
| 789 | |
| 790 | /* |
| 791 | * AIX appears to require that F_RELFLG not be set if there are |
| 792 | * local symbols but no relocations. |
| 793 | */ |
| 794 | internal_f.f_flags &=~ F_RELFLG; |
| 795 | } else { |
| 796 | internal_f.f_flags |= F_LSYMS; |
| 797 | } |
| 798 | |
| 799 | if (text_sec) { |
| 800 | internal_a.tsize = bfd_get_section_size_before_reloc (text_sec); |
| 801 | internal_a.text_start = internal_a.tsize ? text_sec->vma : 0; |
| 802 | } |
| 803 | |
| 804 | if (data_sec) { |
| 805 | internal_a.dsize = bfd_get_section_size_before_reloc (data_sec); |
| 806 | internal_a.data_start = internal_a.dsize ? data_sec->vma : 0; |
| 807 | } |
| 808 | |
| 809 | if (bss_sec) { |
| 810 | internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec); |
| 811 | if (internal_a.bsize && bss_sec->vma < internal_a.data_start) |
| 812 | internal_a.data_start = bss_sec->vma; |
| 813 | } |
| 814 | |
| 815 | internal_a.entry = bfd_get_start_address (abfd); |
| 816 | internal_f.f_nsyms = obj_raw_syment_count (abfd); |
| 817 | |
| 818 | if (xcoff_data (abfd)->full_aouthdr) { |
| 819 | |
| 820 | bfd_vma toc; |
| 821 | asection *loader_sec; |
| 822 | |
| 823 | internal_a.vstamp = 1; |
| 824 | |
| 825 | internal_a.o_snentry = xcoff_data (abfd)->snentry; |
| 826 | if (internal_a.o_snentry == 0) |
| 827 | internal_a.entry = (bfd_vma) -1; |
| 828 | |
| 829 | if (text_sec != NULL) { |
| 830 | internal_a.o_sntext = text_sec->target_index; |
| 831 | internal_a.o_algntext = bfd_get_section_alignment (abfd, text_sec); |
| 832 | } else { |
| 833 | internal_a.o_sntext = 0; |
| 834 | internal_a.o_algntext = 0; |
| 835 | } |
| 836 | |
| 837 | if (data_sec != NULL) { |
| 838 | internal_a.o_sndata = data_sec->target_index; |
| 839 | internal_a.o_algndata = bfd_get_section_alignment (abfd, data_sec); |
| 840 | } else { |
| 841 | internal_a.o_sndata = 0; |
| 842 | internal_a.o_algndata = 0; |
| 843 | } |
| 844 | |
| 845 | loader_sec = bfd_get_section_by_name (abfd, ".loader"); |
| 846 | if (loader_sec != NULL) |
| 847 | internal_a.o_snloader = loader_sec->target_index; |
| 848 | else |
| 849 | internal_a.o_snloader = 0; |
| 850 | if (bss_sec != NULL) |
| 851 | internal_a.o_snbss = bss_sec->target_index; |
| 852 | else |
| 853 | internal_a.o_snbss = 0; |
| 854 | |
| 855 | toc = xcoff_data (abfd)->toc; |
| 856 | internal_a.o_toc = toc; |
| 857 | internal_a.o_sntoc = xcoff_data (abfd)->sntoc; |
| 858 | |
| 859 | internal_a.o_modtype = xcoff_data (abfd)->modtype; |
| 860 | if (xcoff_data (abfd)->cputype != -1) |
| 861 | internal_a.o_cputype = xcoff_data (abfd)->cputype; |
| 862 | else |
| 863 | { |
| 864 | switch (bfd_get_arch (abfd)) |
| 865 | { |
| 866 | case bfd_arch_rs6000: |
| 867 | internal_a.o_cputype = 4; |
| 868 | break; |
| 869 | case bfd_arch_powerpc: |
| 870 | if (bfd_get_mach (abfd) == 0) |
| 871 | internal_a.o_cputype = 3; |
| 872 | else |
| 873 | internal_a.o_cputype = 1; |
| 874 | break; |
| 875 | default: |
| 876 | abort (); |
| 877 | } |
| 878 | } |
| 879 | internal_a.o_maxstack = xcoff_data (abfd)->maxstack; |
| 880 | internal_a.o_maxdata = xcoff_data (abfd)->maxdata; |
| 881 | } |
| 882 | |
| 883 | if (bfd_seek (abfd, (file_ptr) 0, 0 ) != 0) |
| 884 | return false; |
| 885 | |
| 886 | { |
| 887 | char * buff; |
| 888 | bfd_size_type amount; |
| 889 | |
| 890 | buff = bfd_malloc (bfd_coff_filhsz (abfd)); |
| 891 | if (buff == ((void *)0) ) |
| 892 | return false; |
| 893 | |
| 894 | bfd_coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) buff); |
| 895 | amount = bfd_write ((PTR) buff, 1, bfd_coff_filhsz (abfd), abfd); |
| 896 | |
| 897 | free (buff); |
| 898 | |
| 899 | if (amount != bfd_coff_filhsz (abfd)) |
| 900 | return false; |
| 901 | } |
| 902 | |
| 903 | if (abfd->flags & EXEC_P) { |
| 904 | |
| 905 | char * buff; |
| 906 | bfd_size_type amount; |
| 907 | |
| 908 | buff = bfd_malloc (bfd_coff_aoutsz (abfd)); |
| 909 | if (buff == NULL) |
| 910 | return false; |
| 911 | |
| 912 | bfd_coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) buff); |
| 913 | amount = bfd_write ((PTR) buff, 1, bfd_coff_aoutsz (abfd), abfd); |
| 914 | |
| 915 | free (buff); |
| 916 | |
| 917 | if (amount != bfd_coff_aoutsz (abfd)) |
| 918 | return false; |
| 919 | } |
| 920 | |
| 921 | |
| 922 | return true; |
| 923 | } |
| 924 | |
| 925 | /* This is the relocation function for the RS/6000/POWER/PowerPC. |
| 926 | This is currently the only processor which uses XCOFF; I hope that |
| 927 | will never change. */ |
| 928 | |
| 929 | boolean |
| 930 | xcoff64_ppc_relocate_section (output_bfd, info, input_bfd, |
| 931 | input_section, contents, relocs, syms, |
| 932 | sections) |
| 933 | bfd *output_bfd; |
| 934 | struct bfd_link_info *info; |
| 935 | bfd *input_bfd; |
| 936 | asection *input_section; |
| 937 | bfd_byte *contents; |
| 938 | struct internal_reloc *relocs; |
| 939 | struct internal_syment *syms; |
| 940 | asection **sections; |
| 941 | { |
| 942 | struct internal_reloc *rel; |
| 943 | struct internal_reloc *relend; |
| 944 | |
| 945 | rel = relocs; |
| 946 | relend = rel + input_section->reloc_count; |
| 947 | for (; rel < relend; rel++) |
| 948 | { |
| 949 | long symndx; |
| 950 | struct xcoff_link_hash_entry *h; |
| 951 | struct internal_syment *sym; |
| 952 | bfd_vma addend; |
| 953 | bfd_vma val; |
| 954 | struct reloc_howto_struct howto; |
| 955 | bfd_reloc_status_type rstat; |
| 956 | |
| 957 | /* Relocation type R_REF is a special relocation type which is |
| 958 | merely used to prevent garbage collection from occurring for |
| 959 | the csect including the symbol which it references. */ |
| 960 | if (rel->r_type == R_REF) |
| 961 | continue; |
| 962 | |
| 963 | symndx = rel->r_symndx; |
| 964 | |
| 965 | if (symndx == -1) { |
| 966 | h = NULL; |
| 967 | sym = NULL; |
| 968 | addend = 0; |
| 969 | } else { |
| 970 | h = obj_xcoff_sym_hashes (input_bfd)[symndx]; |
| 971 | sym = syms + symndx; |
| 972 | addend = - sym->n_value; |
| 973 | } |
| 974 | |
| 975 | /* We build the howto information on the fly. */ |
| 976 | |
| 977 | howto.type = rel->r_type; |
| 978 | howto.rightshift = 0; |
| 979 | howto.size = 4; |
| 980 | howto.bitsize = (rel->r_size & 0x3f) + 1; |
| 981 | howto.pc_relative = false; |
| 982 | howto.bitpos = 0; |
| 983 | if ((rel->r_size & 0x80) != 0) |
| 984 | howto.complain_on_overflow = complain_overflow_signed; |
| 985 | else |
| 986 | howto.complain_on_overflow = complain_overflow_bitfield; |
| 987 | howto.special_function = NULL; |
| 988 | howto.name = "internal"; |
| 989 | howto.partial_inplace = true; |
| 990 | |
| 991 | if (howto.bitsize == 64) { |
| 992 | howto.src_mask = howto.dst_mask = MINUS_ONE; |
| 993 | } else if (howto.bitsize == 32) { |
| 994 | howto.src_mask = howto.dst_mask = 0xffffffff; |
| 995 | } else { |
| 996 | howto.src_mask = howto.dst_mask = (1 << howto.bitsize) - 1; |
| 997 | if (howto.bitsize == 16) |
| 998 | howto.size = 1; |
| 999 | } |
| 1000 | howto.pcrel_offset = false; |
| 1001 | |
| 1002 | val = 0; |
| 1003 | |
| 1004 | if (h == NULL) { |
| 1005 | asection *sec; |
| 1006 | |
| 1007 | if (symndx == -1) { |
| 1008 | sec = bfd_abs_section_ptr; |
| 1009 | val = 0; |
| 1010 | } else { |
| 1011 | sec = sections[symndx]; |
| 1012 | /* Hack to make sure we use the right TOC anchor value |
| 1013 | if this reloc is against the TOC anchor. */ |
| 1014 | if (sec->name[3] == '0' |
| 1015 | && strcmp (sec->name, ".tc0") == 0) |
| 1016 | val = xcoff_data (output_bfd)->toc; |
| 1017 | else |
| 1018 | val = (sec->output_section->vma |
| 1019 | + sec->output_offset |
| 1020 | + sym->n_value |
| 1021 | - sec->vma); |
| 1022 | } |
| 1023 | |
| 1024 | } else { |
| 1025 | |
| 1026 | if (h->root.type == bfd_link_hash_defined |
| 1027 | || h->root.type == bfd_link_hash_defweak) { |
| 1028 | asection *sec; |
| 1029 | |
| 1030 | sec = h->root.u.def.section; |
| 1031 | val = (h->root.u.def.value |
| 1032 | + sec->output_section->vma |
| 1033 | + sec->output_offset); |
| 1034 | |
| 1035 | } else if (h->root.type == bfd_link_hash_common) { |
| 1036 | asection *sec; |
| 1037 | |
| 1038 | sec = h->root.u.c.p->section; |
| 1039 | val = (sec->output_section->vma |
| 1040 | + sec->output_offset); |
| 1041 | } else if ((h->flags & XCOFF_DEF_DYNAMIC) != 0 |
| 1042 | || (h->flags & XCOFF_IMPORT) != 0) { |
| 1043 | /* Every symbol in a shared object is defined somewhere. */ |
| 1044 | val = 0; |
| 1045 | } else if (! info->relocateable) { |
| 1046 | if (! ((*info->callbacks->undefined_symbol) |
| 1047 | (info, h->root.root.string, input_bfd, input_section, |
| 1048 | rel->r_vaddr - input_section->vma, true))) |
| 1049 | return false; |
| 1050 | |
| 1051 | /* Don't try to process the reloc. It can't help, and |
| 1052 | it may generate another error. */ |
| 1053 | continue; |
| 1054 | } |
| 1055 | } |
| 1056 | |
| 1057 | /* I took the relocation type definitions from two documents: |
| 1058 | the PowerPC AIX Version 4 Application Binary Interface, First |
| 1059 | Edition (April 1992), and the PowerOpen ABI, Big-Endian |
| 1060 | 32-Bit Hardware Implementation (June 30, 1994). Differences |
| 1061 | between the documents are noted below. */ |
| 1062 | |
| 1063 | switch (rel->r_type) { |
| 1064 | case R_RTB: |
| 1065 | case R_RRTBI: |
| 1066 | case R_RRTBA: |
| 1067 | /* These relocs are defined by the PowerPC ABI to be |
| 1068 | relative branches which use half of the difference |
| 1069 | between the symbol and the program counter. I can't |
| 1070 | quite figure out when this is useful. These relocs are |
| 1071 | not defined by the PowerOpen ABI. */ |
| 1072 | default: |
| 1073 | (*_bfd_error_handler) |
| 1074 | (_("%s: unsupported relocation type 0x%02x"), |
| 1075 | bfd_get_filename (input_bfd), (unsigned int) rel->r_type); |
| 1076 | bfd_set_error (bfd_error_bad_value); |
| 1077 | return false; |
| 1078 | case R_POS: |
| 1079 | /* Simple positive relocation. */ |
| 1080 | break; |
| 1081 | case R_NEG: |
| 1082 | /* Simple negative relocation. */ |
| 1083 | val = - val; |
| 1084 | break; |
| 1085 | case R_REL: |
| 1086 | /* Simple PC relative relocation. */ |
| 1087 | howto.pc_relative = true; |
| 1088 | break; |
| 1089 | case R_TOC: |
| 1090 | /* TOC relative relocation. The value in the instruction in |
| 1091 | the input file is the offset from the input file TOC to |
| 1092 | the desired location. We want the offset from the final |
| 1093 | TOC to the desired location. We have: |
| 1094 | isym = iTOC + in |
| 1095 | iinsn = in + o |
| 1096 | osym = oTOC + on |
| 1097 | oinsn = on + o |
| 1098 | so we must change insn by on - in. |
| 1099 | */ |
| 1100 | case R_GL: |
| 1101 | /* Global linkage relocation. The value of this relocation |
| 1102 | is the address of the entry in the TOC section. */ |
| 1103 | case R_TCL: |
| 1104 | /* Local object TOC address. I can't figure out the |
| 1105 | difference between this and case R_GL. */ |
| 1106 | case R_TRL: |
| 1107 | /* TOC relative relocation. A TOC relative load instruction |
| 1108 | which may be changed to a load address instruction. |
| 1109 | FIXME: We don't currently implement this optimization. */ |
| 1110 | case R_TRLA: |
| 1111 | /* TOC relative relocation. This is a TOC relative load |
| 1112 | address instruction which may be changed to a load |
| 1113 | instruction. FIXME: I don't know if this is the correct |
| 1114 | implementation. */ |
| 1115 | if (h != NULL && h->smclas != XMC_TD) |
| 1116 | { |
| 1117 | if (h->toc_section == NULL) |
| 1118 | { |
| 1119 | (*_bfd_error_handler) |
| 1120 | (_("%s: TOC reloc at 0x%x to symbol `%s' with no TOC entry"), |
| 1121 | bfd_get_filename (input_bfd), rel->r_vaddr, |
| 1122 | h->root.root.string); |
| 1123 | bfd_set_error (bfd_error_bad_value); |
| 1124 | return false; |
| 1125 | } |
| 1126 | |
| 1127 | BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0); |
| 1128 | val = (h->toc_section->output_section->vma |
| 1129 | + h->toc_section->output_offset); |
| 1130 | |
| 1131 | } |
| 1132 | |
| 1133 | |
| 1134 | val = ((val - xcoff_data (output_bfd)->toc) |
| 1135 | - (sym->n_value - xcoff_data (input_bfd)->toc)); |
| 1136 | |
| 1137 | addend = 0; |
| 1138 | break; |
| 1139 | case R_BA: |
| 1140 | /* Absolute branch. We don't want to mess with the lower |
| 1141 | two bits of the instruction. */ |
| 1142 | case R_CAI: |
| 1143 | /* The PowerPC ABI defines this as an absolute call which |
| 1144 | may be modified to become a relative call. The PowerOpen |
| 1145 | ABI does not define this relocation type. */ |
| 1146 | case R_RBA: |
| 1147 | /* Absolute branch which may be modified to become a |
| 1148 | relative branch. */ |
| 1149 | case R_RBAC: |
| 1150 | /* The PowerPC ABI defines this as an absolute branch to a |
| 1151 | fixed address which may be modified to an absolute branch |
| 1152 | to a symbol. The PowerOpen ABI does not define this |
| 1153 | relocation type. */ |
| 1154 | case R_RBRC: |
| 1155 | /* The PowerPC ABI defines this as an absolute branch to a |
| 1156 | fixed address which may be modified to a relative branch. |
| 1157 | The PowerOpen ABI does not define this relocation type. */ |
| 1158 | howto.src_mask &= ~3; |
| 1159 | howto.dst_mask = howto.src_mask; |
| 1160 | break; |
| 1161 | case R_BR: |
| 1162 | /* Relative branch. We don't want to mess with the lower |
| 1163 | two bits of the instruction. */ |
| 1164 | case R_CREL: |
| 1165 | /* The PowerPC ABI defines this as a relative call which may |
| 1166 | be modified to become an absolute call. The PowerOpen |
| 1167 | ABI does not define this relocation type. */ |
| 1168 | case R_RBR: |
| 1169 | /* A relative branch which may be modified to become an |
| 1170 | absolute branch. FIXME: We don't implement this, |
| 1171 | although we should for symbols of storage mapping class |
| 1172 | XMC_XO. */ |
| 1173 | howto.pc_relative = true; |
| 1174 | howto.src_mask &= ~3; |
| 1175 | howto.dst_mask = howto.src_mask; |
| 1176 | howto.size = 2; |
| 1177 | howto.complain_on_overflow = complain_overflow_bitfield; |
| 1178 | break; |
| 1179 | case R_RL: |
| 1180 | /* The PowerPC AIX ABI describes this as a load which may be |
| 1181 | changed to a load address. The PowerOpen ABI says this |
| 1182 | is the same as case R_POS. */ |
| 1183 | break; |
| 1184 | case R_RLA: |
| 1185 | /* The PowerPC AIX ABI describes this as a load address |
| 1186 | which may be changed to a load. The PowerOpen ABI says |
| 1187 | this is the same as R_POS. */ |
| 1188 | break; |
| 1189 | } |
| 1190 | |
| 1191 | /* If we see an R_BR or R_RBR reloc which is jumping to global |
| 1192 | linkage code, and it is followed by an appropriate cror nop |
| 1193 | instruction, we replace the cror with ld r2,40(r1). This |
| 1194 | restores the TOC after the glink code. Contrariwise, if the |
| 1195 | call is followed by a ld r2,40(r1), but the call is not |
| 1196 | going to global linkage code, we can replace the load with a |
| 1197 | cror. */ |
| 1198 | if ((rel->r_type == R_BR || rel->r_type == R_RBR) && |
| 1199 | h != NULL && |
| 1200 | h->root.type == bfd_link_hash_defined && |
| 1201 | (rel->r_vaddr - input_section->vma + 8 |
| 1202 | <= input_section->_cooked_size)) { |
| 1203 | |
| 1204 | bfd_byte *pnext; |
| 1205 | unsigned long next; |
| 1206 | |
| 1207 | pnext = contents + (rel->r_vaddr - input_section->vma) + 4; |
| 1208 | next = bfd_get_32 (input_bfd, pnext); |
| 1209 | |
| 1210 | |
| 1211 | /* The _ptrgl function is magic. It is used by the AIX |
| 1212 | * compiler to call a function through a pointer. |
| 1213 | * |
| 1214 | * special case XMC_GL, global linkage |
| 1215 | */ |
| 1216 | if (h->smclas == XMC_GL |
| 1217 | || strcmp (h->root.root.string, "._ptrgl") == 0) |
| 1218 | { |
| 1219 | if (next == 0x4def7b82 /* cror 15,15,15 */ |
| 1220 | || next == 0x4ffffb82 /* cror 31,31,31 */ |
| 1221 | || next == 0x60000000) /* ori r0,r0,0 */ |
| 1222 | bfd_put_32 (input_bfd, 0xe8410028, pnext); /* ld r2,40(r1) */ |
| 1223 | } |
| 1224 | else |
| 1225 | { |
| 1226 | if (next == 0xe8410028) /* ld r2,40(r1) */ |
| 1227 | bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */ |
| 1228 | } |
| 1229 | } |
| 1230 | |
| 1231 | /* A PC relative reloc includes the section address. */ |
| 1232 | if (howto.pc_relative) |
| 1233 | addend += input_section->vma; |
| 1234 | |
| 1235 | rstat = _bfd_final_link_relocate (&howto, input_bfd, input_section, |
| 1236 | contents, |
| 1237 | rel->r_vaddr - input_section->vma, |
| 1238 | val, addend); |
| 1239 | |
| 1240 | switch (rstat) |
| 1241 | { |
| 1242 | default: |
| 1243 | abort (); |
| 1244 | case bfd_reloc_ok: |
| 1245 | break; |
| 1246 | case bfd_reloc_overflow: |
| 1247 | { |
| 1248 | const char *name; |
| 1249 | char buf[SYMNMLEN + 1]; |
| 1250 | char howto_name[10]; |
| 1251 | |
| 1252 | if (symndx == -1) |
| 1253 | name = "*ABS*"; |
| 1254 | else if (h != NULL) |
| 1255 | name = h->root.root.string; |
| 1256 | else |
| 1257 | { |
| 1258 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); |
| 1259 | if (name == NULL) |
| 1260 | return false; |
| 1261 | } |
| 1262 | sprintf (howto_name, "0x%02x", rel->r_type); |
| 1263 | |
| 1264 | if (! ((*info->callbacks->reloc_overflow) |
| 1265 | (info, name, howto_name, (bfd_vma) 0, input_bfd, |
| 1266 | input_section, rel->r_vaddr - input_section->vma))) |
| 1267 | return false; |
| 1268 | } |
| 1269 | } |
| 1270 | } |
| 1271 | |
| 1272 | return true; |
| 1273 | } |
| 1274 | |
| 1275 | |
| 1276 | \f |
| 1277 | /* The XCOFF reloc table. Actually, XCOFF relocations specify the |
| 1278 | bitsize and whether they are signed or not, along with a |
| 1279 | conventional type. This table is for the types, which are used for |
| 1280 | different algorithms for putting in the reloc. Many of these |
| 1281 | relocs need special_function entries, which I have not written. */ |
| 1282 | |
| 1283 | |
| 1284 | reloc_howto_type xcoff64_howto_table[] = |
| 1285 | { |
| 1286 | /* Standard 64 bit relocation. */ |
| 1287 | HOWTO (0, /* type */ |
| 1288 | 0, /* rightshift */ |
| 1289 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1290 | 64, /* bitsize */ |
| 1291 | false, /* pc_relative */ |
| 1292 | 0, /* bitpos */ |
| 1293 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1294 | 0, /* special_function */ |
| 1295 | "R_POS", /* name */ |
| 1296 | true, /* partial_inplace */ |
| 1297 | MINUS_ONE, /* src_mask */ |
| 1298 | MINUS_ONE, /* dst_mask */ |
| 1299 | false), /* pcrel_offset */ |
| 1300 | |
| 1301 | /* 64 bit relocation, but store negative value. */ |
| 1302 | HOWTO (1, /* type */ |
| 1303 | 0, /* rightshift */ |
| 1304 | -4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1305 | 64, /* bitsize */ |
| 1306 | false, /* pc_relative */ |
| 1307 | 0, /* bitpos */ |
| 1308 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1309 | 0, /* special_function */ |
| 1310 | "R_NEG", /* name */ |
| 1311 | true, /* partial_inplace */ |
| 1312 | MINUS_ONE, /* src_mask */ |
| 1313 | MINUS_ONE, /* dst_mask */ |
| 1314 | false), /* pcrel_offset */ |
| 1315 | |
| 1316 | /* 32 bit PC relative relocation. */ |
| 1317 | HOWTO (2, /* type */ |
| 1318 | 0, /* rightshift */ |
| 1319 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1320 | 32, /* bitsize */ |
| 1321 | true, /* pc_relative */ |
| 1322 | 0, /* bitpos */ |
| 1323 | complain_overflow_signed, /* complain_on_overflow */ |
| 1324 | 0, /* special_function */ |
| 1325 | "R_REL", /* name */ |
| 1326 | true, /* partial_inplace */ |
| 1327 | 0xffffffff, /* src_mask */ |
| 1328 | 0xffffffff, /* dst_mask */ |
| 1329 | false), /* pcrel_offset */ |
| 1330 | |
| 1331 | /* 16 bit TOC relative relocation. */ |
| 1332 | HOWTO (3, /* type */ |
| 1333 | 0, /* rightshift */ |
| 1334 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1335 | 16, /* bitsize */ |
| 1336 | false, /* pc_relative */ |
| 1337 | 0, /* bitpos */ |
| 1338 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1339 | 0, /* special_function */ |
| 1340 | "R_TOC", /* name */ |
| 1341 | true, /* partial_inplace */ |
| 1342 | 0xffff, /* src_mask */ |
| 1343 | 0xffff, /* dst_mask */ |
| 1344 | false), /* pcrel_offset */ |
| 1345 | |
| 1346 | /* I don't really know what this is. */ |
| 1347 | HOWTO (4, /* type */ |
| 1348 | 1, /* rightshift */ |
| 1349 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1350 | 32, /* bitsize */ |
| 1351 | false, /* pc_relative */ |
| 1352 | 0, /* bitpos */ |
| 1353 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1354 | 0, /* special_function */ |
| 1355 | "R_RTB", /* name */ |
| 1356 | true, /* partial_inplace */ |
| 1357 | 0xffffffff, /* src_mask */ |
| 1358 | 0xffffffff, /* dst_mask */ |
| 1359 | false), /* pcrel_offset */ |
| 1360 | |
| 1361 | /* External TOC relative symbol. */ |
| 1362 | HOWTO (5, /* type */ |
| 1363 | 0, /* rightshift */ |
| 1364 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1365 | 16, /* bitsize */ |
| 1366 | false, /* pc_relative */ |
| 1367 | 0, /* bitpos */ |
| 1368 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1369 | 0, /* special_function */ |
| 1370 | "R_GL", /* name */ |
| 1371 | true, /* partial_inplace */ |
| 1372 | 0xffff, /* src_mask */ |
| 1373 | 0xffff, /* dst_mask */ |
| 1374 | false), /* pcrel_offset */ |
| 1375 | |
| 1376 | /* Local TOC relative symbol. */ |
| 1377 | HOWTO (6, /* type */ |
| 1378 | 0, /* rightshift */ |
| 1379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1380 | 16, /* bitsize */ |
| 1381 | false, /* pc_relative */ |
| 1382 | 0, /* bitpos */ |
| 1383 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1384 | 0, /* special_function */ |
| 1385 | "R_TCL", /* name */ |
| 1386 | true, /* partial_inplace */ |
| 1387 | 0xffff, /* src_mask */ |
| 1388 | 0xffff, /* dst_mask */ |
| 1389 | false), /* pcrel_offset */ |
| 1390 | |
| 1391 | EMPTY_HOWTO (7), |
| 1392 | |
| 1393 | /* Non modifiable absolute branch. */ |
| 1394 | HOWTO (8, /* type */ |
| 1395 | 0, /* rightshift */ |
| 1396 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1397 | 26, /* bitsize */ |
| 1398 | false, /* pc_relative */ |
| 1399 | 0, /* bitpos */ |
| 1400 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1401 | 0, /* special_function */ |
| 1402 | "R_BA", /* name */ |
| 1403 | true, /* partial_inplace */ |
| 1404 | 0x3fffffc, /* src_mask */ |
| 1405 | 0x3fffffc, /* dst_mask */ |
| 1406 | false), /* pcrel_offset */ |
| 1407 | |
| 1408 | EMPTY_HOWTO (9), |
| 1409 | |
| 1410 | /* Non modifiable relative branch. */ |
| 1411 | HOWTO (0xa, /* type */ |
| 1412 | 0, /* rightshift */ |
| 1413 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1414 | 26, /* bitsize */ |
| 1415 | true, /* pc_relative */ |
| 1416 | 0, /* bitpos */ |
| 1417 | complain_overflow_signed, /* complain_on_overflow */ |
| 1418 | 0, /* special_function */ |
| 1419 | "R_BR", /* name */ |
| 1420 | true, /* partial_inplace */ |
| 1421 | 0x3fffffc, /* src_mask */ |
| 1422 | 0x3fffffc, /* dst_mask */ |
| 1423 | false), /* pcrel_offset */ |
| 1424 | |
| 1425 | EMPTY_HOWTO (0xb), |
| 1426 | |
| 1427 | /* Indirect load. */ |
| 1428 | HOWTO (0xc, /* type */ |
| 1429 | 0, /* rightshift */ |
| 1430 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1431 | 16, /* bitsize */ |
| 1432 | false, /* pc_relative */ |
| 1433 | 0, /* bitpos */ |
| 1434 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1435 | 0, /* special_function */ |
| 1436 | "R_RL", /* name */ |
| 1437 | true, /* partial_inplace */ |
| 1438 | 0xffff, /* src_mask */ |
| 1439 | 0xffff, /* dst_mask */ |
| 1440 | false), /* pcrel_offset */ |
| 1441 | |
| 1442 | /* Load address. */ |
| 1443 | HOWTO (0xd, /* type */ |
| 1444 | 0, /* rightshift */ |
| 1445 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1446 | 16, /* bitsize */ |
| 1447 | false, /* pc_relative */ |
| 1448 | 0, /* bitpos */ |
| 1449 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1450 | 0, /* special_function */ |
| 1451 | "R_RLA", /* name */ |
| 1452 | true, /* partial_inplace */ |
| 1453 | 0xffff, /* src_mask */ |
| 1454 | 0xffff, /* dst_mask */ |
| 1455 | false), /* pcrel_offset */ |
| 1456 | |
| 1457 | EMPTY_HOWTO (0xe), |
| 1458 | |
| 1459 | /* Non-relocating reference. */ |
| 1460 | HOWTO (0xf, /* type */ |
| 1461 | 0, /* rightshift */ |
| 1462 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1463 | 32, /* bitsize */ |
| 1464 | false, /* pc_relative */ |
| 1465 | 0, /* bitpos */ |
| 1466 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1467 | 0, /* special_function */ |
| 1468 | "R_REF", /* name */ |
| 1469 | false, /* partial_inplace */ |
| 1470 | 0, /* src_mask */ |
| 1471 | 0, /* dst_mask */ |
| 1472 | false), /* pcrel_offset */ |
| 1473 | |
| 1474 | EMPTY_HOWTO (0x10), |
| 1475 | EMPTY_HOWTO (0x11), |
| 1476 | |
| 1477 | /* TOC relative indirect load. */ |
| 1478 | HOWTO (0x12, /* type */ |
| 1479 | 0, /* rightshift */ |
| 1480 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1481 | 16, /* bitsize */ |
| 1482 | false, /* pc_relative */ |
| 1483 | 0, /* bitpos */ |
| 1484 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1485 | 0, /* special_function */ |
| 1486 | "R_TRL", /* name */ |
| 1487 | true, /* partial_inplace */ |
| 1488 | 0xffff, /* src_mask */ |
| 1489 | 0xffff, /* dst_mask */ |
| 1490 | false), /* pcrel_offset */ |
| 1491 | |
| 1492 | /* TOC relative load address. */ |
| 1493 | HOWTO (0x13, /* type */ |
| 1494 | 0, /* rightshift */ |
| 1495 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1496 | 16, /* bitsize */ |
| 1497 | false, /* pc_relative */ |
| 1498 | 0, /* bitpos */ |
| 1499 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1500 | 0, /* special_function */ |
| 1501 | "R_TRLA", /* name */ |
| 1502 | true, /* partial_inplace */ |
| 1503 | 0xffff, /* src_mask */ |
| 1504 | 0xffff, /* dst_mask */ |
| 1505 | false), /* pcrel_offset */ |
| 1506 | |
| 1507 | /* Modifiable relative branch. */ |
| 1508 | HOWTO (0x14, /* type */ |
| 1509 | 1, /* rightshift */ |
| 1510 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1511 | 32, /* bitsize */ |
| 1512 | false, /* pc_relative */ |
| 1513 | 0, /* bitpos */ |
| 1514 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1515 | 0, /* special_function */ |
| 1516 | "R_RRTBI", /* name */ |
| 1517 | true, /* partial_inplace */ |
| 1518 | 0xffffffff, /* src_mask */ |
| 1519 | 0xffffffff, /* dst_mask */ |
| 1520 | false), /* pcrel_offset */ |
| 1521 | |
| 1522 | /* Modifiable absolute branch. */ |
| 1523 | HOWTO (0x15, /* type */ |
| 1524 | 1, /* rightshift */ |
| 1525 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1526 | 32, /* bitsize */ |
| 1527 | false, /* pc_relative */ |
| 1528 | 0, /* bitpos */ |
| 1529 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1530 | 0, /* special_function */ |
| 1531 | "R_RRTBA", /* name */ |
| 1532 | true, /* partial_inplace */ |
| 1533 | 0xffffffff, /* src_mask */ |
| 1534 | 0xffffffff, /* dst_mask */ |
| 1535 | false), /* pcrel_offset */ |
| 1536 | |
| 1537 | /* Modifiable call absolute indirect. */ |
| 1538 | HOWTO (0x16, /* type */ |
| 1539 | 0, /* rightshift */ |
| 1540 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1541 | 16, /* bitsize */ |
| 1542 | false, /* pc_relative */ |
| 1543 | 0, /* bitpos */ |
| 1544 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1545 | 0, /* special_function */ |
| 1546 | "R_CAI", /* name */ |
| 1547 | true, /* partial_inplace */ |
| 1548 | 0xffff, /* src_mask */ |
| 1549 | 0xffff, /* dst_mask */ |
| 1550 | false), /* pcrel_offset */ |
| 1551 | |
| 1552 | /* Modifiable call relative. */ |
| 1553 | HOWTO (0x17, /* type */ |
| 1554 | 0, /* rightshift */ |
| 1555 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1556 | 16, /* bitsize */ |
| 1557 | false, /* pc_relative */ |
| 1558 | 0, /* bitpos */ |
| 1559 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1560 | 0, /* special_function */ |
| 1561 | "R_CREL", /* name */ |
| 1562 | true, /* partial_inplace */ |
| 1563 | 0xffff, /* src_mask */ |
| 1564 | 0xffff, /* dst_mask */ |
| 1565 | false), /* pcrel_offset */ |
| 1566 | |
| 1567 | /* Modifiable branch absolute. */ |
| 1568 | HOWTO (0x18, /* type */ |
| 1569 | 0, /* rightshift */ |
| 1570 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1571 | 26, /* bitsize */ |
| 1572 | false, /* pc_relative */ |
| 1573 | 0, /* bitpos */ |
| 1574 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1575 | 0, /* special_function */ |
| 1576 | "R_RBA", /* name */ |
| 1577 | true, /* partial_inplace */ |
| 1578 | 0xffff, /* src_mask */ |
| 1579 | 0xffff, /* dst_mask */ |
| 1580 | false), /* pcrel_offset */ |
| 1581 | |
| 1582 | /* Modifiable branch absolute. */ |
| 1583 | HOWTO (0x19, /* type */ |
| 1584 | 0, /* rightshift */ |
| 1585 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1586 | 32, /* bitsize */ |
| 1587 | false, /* pc_relative */ |
| 1588 | 0, /* bitpos */ |
| 1589 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1590 | 0, /* special_function */ |
| 1591 | "R_RBAC", /* name */ |
| 1592 | true, /* partial_inplace */ |
| 1593 | 0xffff, /* src_mask */ |
| 1594 | 0xffff, /* dst_mask */ |
| 1595 | false), /* pcrel_offset */ |
| 1596 | |
| 1597 | /* Modifiable branch relative. */ |
| 1598 | HOWTO (0x1a, /* type */ |
| 1599 | 0, /* rightshift */ |
| 1600 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1601 | 26, /* bitsize */ |
| 1602 | false, /* pc_relative */ |
| 1603 | 0, /* bitpos */ |
| 1604 | complain_overflow_signed, /* complain_on_overflow */ |
| 1605 | 0, /* special_function */ |
| 1606 | "R_RBR", /* name */ |
| 1607 | true, /* partial_inplace */ |
| 1608 | 0xffff, /* src_mask */ |
| 1609 | 0xffff, /* dst_mask */ |
| 1610 | false), /* pcrel_offset */ |
| 1611 | |
| 1612 | /* Modifiable branch absolute. */ |
| 1613 | HOWTO (0x1b, /* type */ |
| 1614 | 0, /* rightshift */ |
| 1615 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1616 | 16, /* bitsize */ |
| 1617 | false, /* pc_relative */ |
| 1618 | 0, /* bitpos */ |
| 1619 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1620 | 0, /* special_function */ |
| 1621 | "R_RBRC", /* name */ |
| 1622 | true, /* partial_inplace */ |
| 1623 | 0xffff, /* src_mask */ |
| 1624 | 0xffff, /* dst_mask */ |
| 1625 | false), /* pcrel_offset */ |
| 1626 | |
| 1627 | HOWTO (0, /* type */ |
| 1628 | 0, /* rightshift */ |
| 1629 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1630 | 64, /* bitsize */ |
| 1631 | false, /* pc_relative */ |
| 1632 | 0, /* bitpos */ |
| 1633 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 1634 | 0, /* special_function */ |
| 1635 | "R_POS", /* name */ |
| 1636 | true, /* partial_inplace */ |
| 1637 | MINUS_ONE, /* src_mask */ |
| 1638 | MINUS_ONE, /* dst_mask */ |
| 1639 | false) /* pcrel_offset */ |
| 1640 | |
| 1641 | }; |
| 1642 | |
| 1643 | void |
| 1644 | xcoff64_rtype2howto (relent, internal) |
| 1645 | arelent *relent; |
| 1646 | struct internal_reloc *internal; |
| 1647 | { |
| 1648 | relent->howto = xcoff64_howto_table + internal->r_type; |
| 1649 | |
| 1650 | /* Check for relocs we don't know of. */ |
| 1651 | if (internal->r_type |
| 1652 | >= sizeof (xcoff64_howto_table) / sizeof (xcoff64_howto_table[0])) |
| 1653 | abort (); |
| 1654 | if (internal->r_type != relent->howto->type) |
| 1655 | abort (); |
| 1656 | |
| 1657 | /* The r_size field of an XCOFF reloc encodes the bitsize of the |
| 1658 | relocation, as well as indicating whether it is signed or not. |
| 1659 | Doublecheck that the relocation information gathered from the |
| 1660 | type matches this information. The bitsize is not significant |
| 1661 | for R_REF relocs. */ |
| 1662 | if (relent->howto->dst_mask != 0 |
| 1663 | && (relent->howto->bitsize |
| 1664 | != ((unsigned int) internal->r_size & 0x3f) + 1)) |
| 1665 | abort (); |
| 1666 | #if 0 |
| 1667 | if ((internal->r_size & 0x80) != 0 |
| 1668 | ? (relent->howto->complain_on_overflow != complain_overflow_signed) |
| 1669 | : (relent->howto->complain_on_overflow != complain_overflow_bitfield)) |
| 1670 | abort (); |
| 1671 | #endif |
| 1672 | } |
| 1673 | |
| 1674 | reloc_howto_type * |
| 1675 | xcoff64_reloc_type_lookup (abfd, code) |
| 1676 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1677 | bfd_reloc_code_real_type code; |
| 1678 | { |
| 1679 | switch (code) |
| 1680 | { |
| 1681 | case BFD_RELOC_PPC_B26: |
| 1682 | return &xcoff64_howto_table[0xa]; |
| 1683 | case BFD_RELOC_PPC_BA26: |
| 1684 | return &xcoff64_howto_table[8]; |
| 1685 | case BFD_RELOC_PPC_TOC16: |
| 1686 | return &xcoff64_howto_table[3]; |
| 1687 | case BFD_RELOC_32: |
| 1688 | case BFD_RELOC_CTOR: |
| 1689 | return &xcoff64_howto_table[0]; |
| 1690 | case BFD_RELOC_64: |
| 1691 | return &xcoff64_howto_table[0x1c]; |
| 1692 | default: |
| 1693 | return NULL; |
| 1694 | } |
| 1695 | } |
| 1696 | |
| 1697 | |
| 1698 | |
| 1699 | /* Read in the armap of an XCOFF archive. */ |
| 1700 | |
| 1701 | boolean |
| 1702 | xcoff64_slurp_armap (abfd) |
| 1703 | bfd *abfd; |
| 1704 | { |
| 1705 | file_ptr off; |
| 1706 | size_t namlen; |
| 1707 | bfd_size_type sz; |
| 1708 | bfd_byte *contents, *cend; |
| 1709 | bfd_vma c, i; |
| 1710 | carsym *arsym; |
| 1711 | bfd_byte *p; |
| 1712 | |
| 1713 | /* This is for the new format. */ |
| 1714 | struct xcoff_ar_hdr_big hdr; |
| 1715 | |
| 1716 | if (xcoff_ardata (abfd) == NULL) { |
| 1717 | bfd_has_map (abfd) = false; |
| 1718 | return true; |
| 1719 | } |
| 1720 | |
| 1721 | off = strtol (xcoff_ardata_big (abfd)->symoff64, (char **) NULL, 10); |
| 1722 | if (off == 0) { |
| 1723 | bfd_has_map (abfd) = false; |
| 1724 | return true; |
| 1725 | } |
| 1726 | |
| 1727 | if (bfd_seek (abfd, off, SEEK_SET) != 0) |
| 1728 | return false; |
| 1729 | |
| 1730 | /* The symbol table starts with a normal archive header. */ |
| 1731 | if (bfd_read ((PTR) &hdr, SIZEOF_AR_HDR_BIG, 1, abfd) != SIZEOF_AR_HDR_BIG) |
| 1732 | return false; |
| 1733 | |
| 1734 | /* Skip the name (normally empty). */ |
| 1735 | namlen = strtol (hdr.namlen, (char **) NULL, 10); |
| 1736 | if (bfd_seek (abfd, ((namlen + 1) & ~1) + SXCOFFARFMAG, SEEK_CUR) != 0) |
| 1737 | return false; |
| 1738 | |
| 1739 | /* XXX This actually has to be a call to strtoll (at least on 32-bit |
| 1740 | machines) since the field width is 20 and there numbers with more |
| 1741 | than 32 bits can be represented. */ |
| 1742 | sz = strtol (hdr.size, (char **) NULL, 10); |
| 1743 | |
| 1744 | /* Read in the entire symbol table. */ |
| 1745 | contents = (bfd_byte *) bfd_alloc (abfd, sz); |
| 1746 | if (contents == NULL) |
| 1747 | return false; |
| 1748 | if (bfd_read ((PTR) contents, 1, sz, abfd) != sz) |
| 1749 | return false; |
| 1750 | |
| 1751 | /* The symbol table starts with an eight byte count. */ |
| 1752 | c = bfd_h_get_64 (abfd, contents); |
| 1753 | |
| 1754 | if (c * 8 >= sz) { |
| 1755 | bfd_set_error (bfd_error_bad_value); |
| 1756 | return false; |
| 1757 | } |
| 1758 | |
| 1759 | bfd_ardata (abfd)->symdefs = ((carsym *) |
| 1760 | bfd_alloc (abfd, c * sizeof (carsym))); |
| 1761 | if (bfd_ardata (abfd)->symdefs == NULL) |
| 1762 | return false; |
| 1763 | |
| 1764 | /* After the count comes a list of eight byte file offsets. */ |
| 1765 | for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 8; |
| 1766 | i < c; |
| 1767 | ++i, ++arsym, p += 8) |
| 1768 | arsym->file_offset = bfd_h_get_64 (abfd, p); |
| 1769 | |
| 1770 | /* After the file offsets come null terminated symbol names. */ |
| 1771 | cend = contents + sz; |
| 1772 | for (i = 0, arsym = bfd_ardata (abfd)->symdefs; |
| 1773 | i < c; |
| 1774 | ++i, ++arsym, p += strlen ((char *) p) + 1) |
| 1775 | { |
| 1776 | if (p >= cend) |
| 1777 | { |
| 1778 | bfd_set_error (bfd_error_bad_value); |
| 1779 | return false; |
| 1780 | } |
| 1781 | arsym->name = (char *) p; |
| 1782 | } |
| 1783 | |
| 1784 | bfd_ardata (abfd)->symdef_count = c; |
| 1785 | bfd_has_map (abfd) = true; |
| 1786 | |
| 1787 | return true; |
| 1788 | } |
| 1789 | |
| 1790 | |
| 1791 | |
| 1792 | /* See if this is an NEW XCOFF archive. */ |
| 1793 | |
| 1794 | const bfd_target * |
| 1795 | xcoff64_archive_p (abfd) |
| 1796 | bfd *abfd; |
| 1797 | { |
| 1798 | char magic[SXCOFFARMAG]; |
| 1799 | /* This is the new format. */ |
| 1800 | struct xcoff_ar_file_hdr_big hdr; |
| 1801 | |
| 1802 | if (bfd_read ((PTR) magic, SXCOFFARMAG, 1, abfd) != SXCOFFARMAG) { |
| 1803 | if (bfd_get_error () != bfd_error_system_call) |
| 1804 | bfd_set_error (bfd_error_wrong_format); |
| 1805 | return NULL; |
| 1806 | } |
| 1807 | |
| 1808 | if (strncmp (magic, XCOFFARMAGBIG, SXCOFFARMAG) != 0) { |
| 1809 | bfd_set_error (bfd_error_wrong_format); |
| 1810 | return NULL; |
| 1811 | } |
| 1812 | |
| 1813 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata |
| 1814 | involves a cast, we can't do it as the left operand of |
| 1815 | assignment. */ |
| 1816 | abfd->tdata.aout_ar_data = |
| 1817 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); |
| 1818 | |
| 1819 | if (bfd_ardata (abfd) == (struct artdata *) NULL) |
| 1820 | return NULL; |
| 1821 | |
| 1822 | bfd_ardata (abfd)->cache = NULL; |
| 1823 | bfd_ardata (abfd)->archive_head = NULL; |
| 1824 | bfd_ardata (abfd)->symdefs = NULL; |
| 1825 | bfd_ardata (abfd)->extended_names = NULL; |
| 1826 | |
| 1827 | /* Copy over the magic string. */ |
| 1828 | memcpy (hdr.magic, magic, SXCOFFARMAG); |
| 1829 | |
| 1830 | /* Now read the rest of the file header. */ |
| 1831 | if (bfd_read ((PTR) &hdr.memoff, SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG, 1, |
| 1832 | abfd) != SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG) { |
| 1833 | if (bfd_get_error () != bfd_error_system_call) |
| 1834 | bfd_set_error (bfd_error_wrong_format); |
| 1835 | return NULL; |
| 1836 | } |
| 1837 | |
| 1838 | /* XXX This actually has to be a call to strtoll (at least on 32-bit |
| 1839 | machines) since the field width is 20 and there numbers with more |
| 1840 | than 32 bits can be represented. */ |
| 1841 | bfd_ardata (abfd)->first_file_filepos = strtol (hdr.firstmemoff, |
| 1842 | (char **) NULL, 10); |
| 1843 | |
| 1844 | bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, SIZEOF_AR_FILE_HDR_BIG); |
| 1845 | if (bfd_ardata (abfd)->tdata == NULL) |
| 1846 | return NULL; |
| 1847 | |
| 1848 | memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR_BIG); |
| 1849 | |
| 1850 | if (! xcoff64_slurp_armap (abfd)) { |
| 1851 | |
| 1852 | bfd_release (abfd, bfd_ardata (abfd)); |
| 1853 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; |
| 1854 | return NULL; |
| 1855 | } |
| 1856 | |
| 1857 | return abfd->xvec; |
| 1858 | } |
| 1859 | |
| 1860 | |
| 1861 | /* Open the next element in an XCOFF archive. */ |
| 1862 | |
| 1863 | bfd * |
| 1864 | xcoff64_openr_next_archived_file (archive, last_file) |
| 1865 | bfd *archive; |
| 1866 | bfd *last_file; |
| 1867 | { |
| 1868 | file_ptr filestart; |
| 1869 | |
| 1870 | if ((xcoff_ardata (archive) == NULL) || |
| 1871 | (! xcoff_big_format_p (archive))) { |
| 1872 | bfd_set_error (bfd_error_invalid_operation); |
| 1873 | return NULL; |
| 1874 | } |
| 1875 | |
| 1876 | if (last_file == NULL) { |
| 1877 | filestart = bfd_ardata (archive)->first_file_filepos; |
| 1878 | } else { |
| 1879 | /* XXX These actually have to be a calls to strtoll (at least |
| 1880 | on 32-bit machines) since the fields's width is 20 and |
| 1881 | there numbers with more than 32 bits can be represented. */ |
| 1882 | filestart = strtol (arch_xhdr_big (last_file)->nextoff, (char **) NULL, |
| 1883 | 10); |
| 1884 | } |
| 1885 | /* XXX These actually have to be calls to strtoll (at least on 32-bit |
| 1886 | machines) since the fields's width is 20 and there numbers with more |
| 1887 | than 32 bits can be represented. */ |
| 1888 | if (filestart == 0 |
| 1889 | || filestart == strtol (xcoff_ardata_big (archive)->memoff, |
| 1890 | (char **) NULL, 10) |
| 1891 | || filestart == strtol (xcoff_ardata_big (archive)->symoff, |
| 1892 | (char **) NULL, 10)) { |
| 1893 | bfd_set_error (bfd_error_no_more_archived_files); |
| 1894 | return NULL; |
| 1895 | } |
| 1896 | |
| 1897 | return _bfd_get_elt_at_filepos (archive, filestart); |
| 1898 | } |
| 1899 | |
| 1900 | /* We can't use the usual coff_sizeof_headers routine, because AIX |
| 1901 | always uses an a.out header. */ |
| 1902 | |
| 1903 | /*ARGSUSED*/ |
| 1904 | int |
| 1905 | xcoff64_sizeof_headers (abfd, reloc) |
| 1906 | bfd *abfd; |
| 1907 | boolean reloc ATTRIBUTE_UNUSED; |
| 1908 | { |
| 1909 | int size; |
| 1910 | |
| 1911 | size = bfd_coff_filhsz(abfd); |
| 1912 | |
| 1913 | /* |
| 1914 | * Don't think the small aout header can be used since some of the the |
| 1915 | * old elements have been reordered past the end of the old coff |
| 1916 | * small aout size |
| 1917 | */ |
| 1918 | |
| 1919 | if (xcoff_data (abfd)->full_aouthdr) |
| 1920 | size += bfd_coff_aoutsz(abfd); |
| 1921 | |
| 1922 | size += abfd->section_count * bfd_coff_scnhsz(abfd); |
| 1923 | return size; |
| 1924 | } |
| 1925 | |
| 1926 | |
| 1927 | |
| 1928 | static asection * |
| 1929 | xcoff64_create_csect_from_smclas (abfd, aux, symbol_name) |
| 1930 | bfd *abfd; |
| 1931 | union internal_auxent *aux; |
| 1932 | const char *symbol_name; |
| 1933 | { |
| 1934 | asection *return_value = NULL; |
| 1935 | |
| 1936 | /* |
| 1937 | * Changes from 32 : |
| 1938 | * .sv == 8, is only for 32 bit programs |
| 1939 | * .ti == 12 and .tb == 13 are now reserved |
| 1940 | */ |
| 1941 | static const char *names[19] = { |
| 1942 | ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo", |
| 1943 | NULL, ".bs", ".ds", ".uc", NULL, NULL, NULL, ".tc0", |
| 1944 | ".td", ".sv64", ".sv3264" |
| 1945 | }; |
| 1946 | |
| 1947 | if ((19 >= aux->x_csect.x_smclas) && |
| 1948 | (NULL != names[aux->x_csect.x_smclas])) { |
| 1949 | |
| 1950 | return_value = bfd_make_section_anyway |
| 1951 | (abfd, names[aux->x_csect.x_smclas]); |
| 1952 | |
| 1953 | } else { |
| 1954 | (*_bfd_error_handler) |
| 1955 | (_("%s: symbol `%s' has unrecognized smclas %d"), |
| 1956 | bfd_get_filename (abfd), symbol_name, aux->x_csect.x_smclas); |
| 1957 | bfd_set_error (bfd_error_bad_value); |
| 1958 | } |
| 1959 | |
| 1960 | return return_value; |
| 1961 | } |
| 1962 | |
| 1963 | boolean |
| 1964 | xcoff64_is_lineno_count_overflow (abfd, value) |
| 1965 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1966 | bfd_vma value ATTRIBUTE_UNUSED; |
| 1967 | { |
| 1968 | return false; |
| 1969 | } |
| 1970 | |
| 1971 | boolean |
| 1972 | xcoff64_is_reloc_count_overflow (abfd, value) |
| 1973 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1974 | bfd_vma value ATTRIBUTE_UNUSED; |
| 1975 | { |
| 1976 | return false; |
| 1977 | } |
| 1978 | |
| 1979 | bfd_vma |
| 1980 | xcoff64_loader_symbol_offset (abfd, ldhdr) |
| 1981 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1982 | struct internal_ldhdr *ldhdr; |
| 1983 | { |
| 1984 | return (ldhdr->l_symoff); |
| 1985 | } |
| 1986 | |
| 1987 | bfd_vma |
| 1988 | xcoff64_loader_reloc_offset (abfd, ldhdr) |
| 1989 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1990 | struct internal_ldhdr *ldhdr; |
| 1991 | { |
| 1992 | return (ldhdr->l_rldoff); |
| 1993 | } |
| 1994 | |
| 1995 | /* The typical dynamic reloc. */ |
| 1996 | |
| 1997 | static reloc_howto_type xcoff64_dynamic_reloc = |
| 1998 | HOWTO (0, /* type */ |
| 1999 | 0, /* rightshift */ |
| 2000 | 4, /* size (0 = byte, 1 = short, 2 = long) */ |
| 2001 | 64, /* bitsize */ |
| 2002 | false, /* pc_relative */ |
| 2003 | 0, /* bitpos */ |
| 2004 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 2005 | 0, /* special_function */ |
| 2006 | "R_POS", /* name */ |
| 2007 | true, /* partial_inplace */ |
| 2008 | MINUS_ONE, /* src_mask */ |
| 2009 | MINUS_ONE, /* dst_mask */ |
| 2010 | false); /* pcrel_offset */ |
| 2011 | |
| 2012 | static unsigned long xcoff64_glink_code[10] = |
| 2013 | { |
| 2014 | 0xe9820000, /* ld r12,0(r2) */ |
| 2015 | 0xf8410028, /* std r2,40(r1) */ |
| 2016 | 0xe80c0000, /* ld r0,0(r12) */ |
| 2017 | 0xe84c0008, /* ld r0,8(r12) */ |
| 2018 | 0x7c0903a6, /* mtctr r0 */ |
| 2019 | 0x4e800420, /* bctr */ |
| 2020 | 0x00000000, /* start of traceback table */ |
| 2021 | 0x000ca000, /* traceback table */ |
| 2022 | 0x00000000, /* traceback table */ |
| 2023 | 0x00000018, /* ??? */ |
| 2024 | }; |
| 2025 | |
| 2026 | static const struct xcoff_backend_data_rec bfd_xcoff_backend_data = |
| 2027 | { |
| 2028 | { /* COFF backend, defined in libcoff.h */ |
| 2029 | _bfd_xcoff64_swap_aux_in, /* _bfd_coff_swap_aux_in */ |
| 2030 | _bfd_xcoff64_swap_sym_in, /* _bfd_coff_swap_sym_in */ |
| 2031 | _bfd_xcoff64_swap_lineno_in, /* _bfd_coff_swap_lineno_in */ |
| 2032 | _bfd_xcoff64_swap_aux_out, /* _bfd_swap_aux_out */ |
| 2033 | _bfd_xcoff64_swap_sym_out, /* _bfd_swap_sym_out */ |
| 2034 | _bfd_xcoff64_swap_lineno_out, /* _bfd_swap_lineno_out */ |
| 2035 | coff_swap_reloc_out, /* _bfd_swap_reloc_out */ |
| 2036 | coff_swap_filehdr_out, /* _bfd_swap_filehdr_out */ |
| 2037 | coff_swap_aouthdr_out, /* _bfd_swap_aouthdr_out */ |
| 2038 | coff_swap_scnhdr_out, /* _bfd_swap_scnhdr_out */ |
| 2039 | FILHSZ, /* _bfd_filhsz */ |
| 2040 | AOUTSZ, /* _bfd_aoutsz */ |
| 2041 | SCNHSZ, /* _bfd_scnhsz */ |
| 2042 | SYMESZ, /* _bfd_symesz */ |
| 2043 | AUXESZ, /* _bfd_auxesz */ |
| 2044 | RELSZ, /* _bfd_relsz */ |
| 2045 | LINESZ, /* _bfd_linesz */ |
| 2046 | FILNMLEN, /* _bfd_filnmlen */ |
| 2047 | true, /* _bfd_coff_long_filenames */ |
| 2048 | false, /* _bfd_coff_long_section_names */ |
| 2049 | (3), /* _bfd_coff_default_section_alignment_power */ |
| 2050 | true, /* _bfd_coff_force_symnames_in_strings */ |
| 2051 | 4, /* _bfd_coff_debug_string_prefix_length */ |
| 2052 | coff_swap_filehdr_in, /* _bfd_coff_swap_filehdr_in */ |
| 2053 | coff_swap_aouthdr_in, /* _bfd_swap_aouthdr_in */ |
| 2054 | coff_swap_scnhdr_in, /* _bfd_swap_scnhdr_in */ |
| 2055 | coff_swap_reloc_in, /* _bfd_reloc_in */ |
| 2056 | coff_bad_format_hook, /* _bfd_bad_format_hook */ |
| 2057 | coff_set_arch_mach_hook, /* _bfd_set_arch_mach_hook */ |
| 2058 | coff_mkobject_hook, /* _bfd_mkobject_hook */ |
| 2059 | styp_to_sec_flags, /* _bfd_syp_to_sec_flags */ |
| 2060 | coff_set_alignment_hook, /* _bfd_set_alignment_hook */ |
| 2061 | coff_slurp_symbol_table, /* _bfd_coff_slurp_symbol_table */ |
| 2062 | symname_in_debug_hook, /* _coff_symname_in_debug_hook */ |
| 2063 | coff_pointerize_aux_hook, /* _bfd_coff_pointerize_aux_hook */ |
| 2064 | coff_print_aux, /* bfd_coff_print_aux */ |
| 2065 | dummy_reloc16_extra_cases, /* _bfd_coff_reloc16_extra_cases */ |
| 2066 | dummy_reloc16_estimate, /* _bfd_coff_reloc16_estimate */ |
| 2067 | NULL, /* bfd_coff_sym_is_global */ |
| 2068 | /* _bfd_coff_compute_section_file_positions */ |
| 2069 | coff_compute_section_file_positions, |
| 2070 | NULL , /* _bfd_coff_start_final_link */ |
| 2071 | xcoff64_ppc_relocate_section, /* _bfd_coff_relocate_section */ |
| 2072 | coff_rtype_to_howto, /* _bfd_coff_rtype_to_howto */ |
| 2073 | NULL , /* _bfd_coff_addust_symndx */ |
| 2074 | _bfd_generic_link_add_one_symbol, /* _bfd_coff_add_one_symbol */ |
| 2075 | coff_link_output_has_begun, /* _bfd_coff_link_output_has_begun */ |
| 2076 | coff_final_link_postscript /* _bfd_coff_final_link_postscript */ |
| 2077 | }, |
| 2078 | |
| 2079 | 0x01EF, /* magic number */ |
| 2080 | bfd_arch_powerpc, /* architecture */ |
| 2081 | bfd_mach_ppc_620, /* machine */ |
| 2082 | |
| 2083 | /* function pointers to xcoff specific swap routines */ |
| 2084 | xcoff64_swap_ldhdr_in, /* _xcoff_swap_ldhdr_in */ |
| 2085 | xcoff64_swap_ldhdr_out, /* _xcoff_swap_ldhdr_out */ |
| 2086 | xcoff64_swap_ldsym_in, /* _xcoff_swap_ldsym_in */ |
| 2087 | xcoff64_swap_ldsym_out, /* _xcoff_swap_ldsym_out */ |
| 2088 | xcoff64_swap_ldrel_in, /* _xcoff_swap_ldrel_in */ |
| 2089 | xcoff64_swap_ldrel_out, /* _xcoff_swap_ldrel_out */ |
| 2090 | |
| 2091 | /* sizes */ |
| 2092 | LDHDRSZ, /* _xcoff_ldhdrsz */ |
| 2093 | LDSYMSZ, /* _xcoff_ldsymsz */ |
| 2094 | LDRELSZ, /* _xcoff_ldrelsz */ |
| 2095 | 24, /* _xcoff_function_descriptor_size */ |
| 2096 | 0, /* _xcoff_small_aout_header_size */ |
| 2097 | /* versions */ |
| 2098 | 2, /* _xcoff_ldhdr_version */ |
| 2099 | |
| 2100 | /* xcoff vs xcoff64 putting symbol names */ |
| 2101 | _bfd_xcoff64_put_symbol_name, /* _xcoff_put_symbol_name */ |
| 2102 | _bfd_xcoff64_put_ldsymbol_name, /* _xcoff_put_ldsymbol_name */ |
| 2103 | |
| 2104 | /* dynamic reloc howto */ |
| 2105 | &xcoff64_dynamic_reloc, |
| 2106 | |
| 2107 | xcoff64_create_csect_from_smclas, |
| 2108 | |
| 2109 | /* lineno and reloc count overflow */ |
| 2110 | xcoff64_is_lineno_count_overflow, |
| 2111 | xcoff64_is_reloc_count_overflow, |
| 2112 | |
| 2113 | xcoff64_loader_symbol_offset, |
| 2114 | xcoff64_loader_reloc_offset, |
| 2115 | |
| 2116 | /* glink */ |
| 2117 | &xcoff64_glink_code[0], |
| 2118 | 40, /* _xcoff_glink_size */ |
| 2119 | |
| 2120 | }; |
| 2121 | |
| 2122 | /* The transfer vector that leads the outside world to all of the above. */ |
| 2123 | const bfd_target rs6000coff64_vec = |
| 2124 | { |
| 2125 | "aixcoff64-rs6000", |
| 2126 | bfd_target_xcoff_flavour, |
| 2127 | BFD_ENDIAN_BIG, /* data byte order is big */ |
| 2128 | BFD_ENDIAN_BIG, /* header byte order is big */ |
| 2129 | |
| 2130 | (HAS_RELOC | EXEC_P | /* object flags */ |
| 2131 | HAS_LINENO | HAS_DEBUG | DYNAMIC | |
| 2132 | HAS_SYMS | HAS_LOCALS | WP_TEXT), |
| 2133 | |
| 2134 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 2135 | 0, /* leading char */ |
| 2136 | '/', /* ar_pad_char */ |
| 2137 | 15, /* ar_max_namelen??? FIXMEmgo */ |
| 2138 | |
| 2139 | /* data */ |
| 2140 | bfd_getb64, /* bfd_getx64 */ |
| 2141 | bfd_getb_signed_64, /* bfd_getx_signed_64 */ |
| 2142 | bfd_putb64, /* bfd_putx64 */ |
| 2143 | bfd_getb32, /* bfd_getx32 */ |
| 2144 | bfd_getb_signed_32, /* bfd_getx_signed_32 */ |
| 2145 | bfd_putb32, /* bfd_putx32 */ |
| 2146 | bfd_getb16, /* bfd_getx16 */ |
| 2147 | bfd_getb_signed_16, /* bfd_getx_signed_16 */ |
| 2148 | bfd_putb16, /* bfd_putx16 */ |
| 2149 | |
| 2150 | /* hdrs */ |
| 2151 | bfd_getb64, /* bfd_h_getx64 */ |
| 2152 | bfd_getb_signed_64, /* bfd_h_getx_signed_64 */ |
| 2153 | bfd_putb64, /* bfd_h_putx64 */ |
| 2154 | bfd_getb32, /* bfd_h_getx32 */ |
| 2155 | bfd_getb_signed_32, /* bfd_h_getx_signed_32 */ |
| 2156 | bfd_putb32, /* bfd_h_putx32 */ |
| 2157 | bfd_getb16, /* bfd_h_getx16 */ |
| 2158 | bfd_getb_signed_16, /* bfd_h_getx_signed_16 */ |
| 2159 | bfd_putb16, /* bfd_h_putx16 */ |
| 2160 | |
| 2161 | { /* bfd_check_format */ |
| 2162 | _bfd_dummy_target, |
| 2163 | coff_object_p, |
| 2164 | xcoff64_archive_p, |
| 2165 | CORE_FILE_P |
| 2166 | }, |
| 2167 | |
| 2168 | { /* bfd_set_format */ |
| 2169 | bfd_false, |
| 2170 | coff_mkobject, |
| 2171 | _bfd_generic_mkarchive, |
| 2172 | bfd_false |
| 2173 | }, |
| 2174 | |
| 2175 | {/* bfd_write_contents */ |
| 2176 | bfd_false, |
| 2177 | xcoff64_write_object_contents, |
| 2178 | _bfd_xcoff_write_archive_contents, |
| 2179 | bfd_false |
| 2180 | }, |
| 2181 | |
| 2182 | /* Generic */ |
| 2183 | bfd_true, /* _close_and_cleanup */ |
| 2184 | bfd_true, /* _bfd_free_cached_info */ |
| 2185 | coff_new_section_hook, /* _new_section_hook */ |
| 2186 | _bfd_generic_get_section_contents, /* _bfd_get_section_contents */ |
| 2187 | /* _bfd_get_section_contents_in_window */ |
| 2188 | _bfd_generic_get_section_contents_in_window, |
| 2189 | |
| 2190 | /* Copy */ |
| 2191 | _bfd_xcoff_copy_private_bfd_data, /* _bfd_copy_private_bfd */ |
| 2192 | /* _bfd_merge_private_bfd_data */ |
| 2193 | ((boolean (*) (bfd *, bfd *)) bfd_true), |
| 2194 | /* _bfd_copy_pivate_section_data */ |
| 2195 | ((boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true), |
| 2196 | /* _bfd_copy_private_symbol_data */ |
| 2197 | ((boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true), |
| 2198 | ((boolean (*) (bfd *, flagword)) bfd_true), /* _bfd_set_private_flags */ |
| 2199 | ((boolean (*) (bfd *, void * )) bfd_true), /* _bfd_print_private_bfd_data */ |
| 2200 | |
| 2201 | /* Core */ |
| 2202 | coff_core_file_failing_command, /* _core_file_failing_command */ |
| 2203 | coff_core_file_failing_signal, /* _core_file_failing_signal */ |
| 2204 | /* _core_file_matches_executable_p */ |
| 2205 | coff_core_file_matches_executable_p, |
| 2206 | |
| 2207 | /* Archive */ |
| 2208 | xcoff64_slurp_armap, /* _slurp_armap */ |
| 2209 | /* XCOFF archives do not have |
| 2210 | anything which corresponds to |
| 2211 | an extended name table. */ |
| 2212 | bfd_false, /* _slurp_extended_name_table */ |
| 2213 | /* _construct_extended_name_table */ |
| 2214 | ((boolean (*) (bfd *, char **, bfd_size_type *, const char **)) bfd_false), |
| 2215 | bfd_dont_truncate_arname, /* _truncate_arname */ |
| 2216 | _bfd_xcoff_write_armap, /* _write_armap */ |
| 2217 | _bfd_xcoff_read_ar_hdr, /* _read_ar_hdr */ |
| 2218 | xcoff64_openr_next_archived_file, /* _openr_next_archived_file */ |
| 2219 | _bfd_generic_get_elt_at_index, /* _get_elt_at_index */ |
| 2220 | _bfd_xcoff_generic_stat_arch_elt, /* _generic_dtat_arch_elt */ |
| 2221 | /* XCOFF archives do not have |
| 2222 | a timestamp. */ |
| 2223 | bfd_true, /* _update_armap_timestamp */ |
| 2224 | |
| 2225 | /* Symbols */ |
| 2226 | coff_get_symtab_upper_bound, /* _get_symtab_upper_bound */ |
| 2227 | coff_get_symtab, /* _get_symtab */ |
| 2228 | coff_make_empty_symbol, /* _make_empty_symbol */ |
| 2229 | coff_print_symbol, /* _print_symbol */ |
| 2230 | coff_get_symbol_info, /* _get_symbol_info */ |
| 2231 | _bfd_xcoff_is_local_label_name, /* _bfd_is_local_label_name */ |
| 2232 | coff_get_lineno, /* _get_lineno */ |
| 2233 | coff_find_nearest_line, /* _find_nearest_line */ |
| 2234 | coff_bfd_make_debug_symbol, /* _bfd_make_debug_symbol */ |
| 2235 | _bfd_generic_read_minisymbols, /* _read_minisymbols */ |
| 2236 | _bfd_generic_minisymbol_to_symbol, /* _minsymbol_to_symbol */ |
| 2237 | |
| 2238 | /* Reloc */ |
| 2239 | coff_get_reloc_upper_bound, /* _get_reloc_upper_bound */ |
| 2240 | coff_canonicalize_reloc, /* _cononicalize_reloc */ |
| 2241 | xcoff64_reloc_type_lookup, /* _bfd_reloc_type_lookup */ |
| 2242 | |
| 2243 | /* Write */ |
| 2244 | coff_set_arch_mach, /* _set_arch_mach */ |
| 2245 | coff_set_section_contents, /* _set_section_contents */ |
| 2246 | |
| 2247 | /* Link */ |
| 2248 | xcoff64_sizeof_headers, /* _sizeof_headers */ |
| 2249 | /* _bfd_get_relocated_section_contents */ |
| 2250 | bfd_generic_get_relocated_section_contents, |
| 2251 | bfd_generic_relax_section, /* _bfd_relax_section */ |
| 2252 | _bfd_xcoff_bfd_link_hash_table_create, /* _bfd_link_hash_table_create */ |
| 2253 | _bfd_xcoff_bfd_link_add_symbols, /* _bfd_link_add_symbols */ |
| 2254 | _bfd_xcoff_bfd_final_link, /* _bfd_filnal_link */ |
| 2255 | _bfd_generic_link_split_section, /* _bfd_link_split_section */ |
| 2256 | bfd_generic_gc_sections, /* _bfd_gc_sections */ |
| 2257 | bfd_generic_merge_sections, /* _bfd_merge_sections */ |
| 2258 | |
| 2259 | /* Dynamic */ |
| 2260 | /* _get_dynamic_symtab_upper_bound */ |
| 2261 | _bfd_xcoff_get_dynamic_symtab_upper_bound, |
| 2262 | _bfd_xcoff_canonicalize_dynamic_symtab, /* _cononicalize_dynamic_symtab */ |
| 2263 | _bfd_xcoff_get_dynamic_reloc_upper_bound,/* _get_dynamic_reloc_upper_bound */ |
| 2264 | _bfd_xcoff_canonicalize_dynamic_reloc, /* _cononicalize_dynamic_reloc */ |
| 2265 | |
| 2266 | /* Opposite endian version, none exists */ |
| 2267 | NULL, |
| 2268 | |
| 2269 | /* back end data */ |
| 2270 | (void *) &bfd_xcoff_backend_data, |
| 2271 | }; |
| 2272 | |
| 2273 | |