| 1 | /* BFD back-end for MIPS Extended-Coff files. |
| 2 | Copyright (C) 1990-2018 Free Software Foundation, Inc. |
| 3 | Original version by Per Bothner. |
| 4 | Full support added by Ian Lance Taylor, ian@cygnus.com. |
| 5 | |
| 6 | This file is part of BFD, the Binary File Descriptor library. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | MA 02110-1301, USA. */ |
| 22 | |
| 23 | #include "sysdep.h" |
| 24 | #include "bfd.h" |
| 25 | #include "bfdlink.h" |
| 26 | #include "libbfd.h" |
| 27 | #include "coff/internal.h" |
| 28 | #include "coff/sym.h" |
| 29 | #include "coff/symconst.h" |
| 30 | #include "coff/ecoff.h" |
| 31 | #include "coff/mips.h" |
| 32 | #include "libcoff.h" |
| 33 | #include "libecoff.h" |
| 34 | \f |
| 35 | /* Prototypes for static functions. */ |
| 36 | static bfd_reloc_status_type |
| 37 | mips_generic_reloc |
| 38 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 39 | static bfd_reloc_status_type |
| 40 | mips_refhi_reloc |
| 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 42 | static bfd_reloc_status_type |
| 43 | mips_reflo_reloc |
| 44 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 45 | static bfd_reloc_status_type |
| 46 | mips_gprel_reloc |
| 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 48 | |
| 49 | \f |
| 50 | /* ECOFF has COFF sections, but the debugging information is stored in |
| 51 | a completely different format. ECOFF targets use some of the |
| 52 | swapping routines from coffswap.h, and some of the generic COFF |
| 53 | routines in coffgen.c, but, unlike the real COFF targets, do not |
| 54 | use coffcode.h itself. |
| 55 | |
| 56 | Get the generic COFF swapping routines, except for the reloc, |
| 57 | symbol, and lineno ones. Give them ECOFF names. */ |
| 58 | #define MIPSECOFF |
| 59 | #define NO_COFF_RELOCS |
| 60 | #define NO_COFF_SYMBOLS |
| 61 | #define NO_COFF_LINENOS |
| 62 | #define coff_swap_filehdr_in mips_ecoff_swap_filehdr_in |
| 63 | #define coff_swap_filehdr_out mips_ecoff_swap_filehdr_out |
| 64 | #define coff_swap_aouthdr_in mips_ecoff_swap_aouthdr_in |
| 65 | #define coff_swap_aouthdr_out mips_ecoff_swap_aouthdr_out |
| 66 | #define coff_swap_scnhdr_in mips_ecoff_swap_scnhdr_in |
| 67 | #define coff_swap_scnhdr_out mips_ecoff_swap_scnhdr_out |
| 68 | |
| 69 | #include "coffswap.h" |
| 70 | |
| 71 | /* Get the ECOFF swapping routines. */ |
| 72 | #define ECOFF_32 |
| 73 | #include "ecoffswap.h" |
| 74 | \f |
| 75 | /* How to process the various relocs types. */ |
| 76 | |
| 77 | static reloc_howto_type mips_howto_table[] = |
| 78 | { |
| 79 | /* Reloc type 0 is ignored. The reloc reading code ensures that |
| 80 | this is a reference to the .abs section, which will cause |
| 81 | bfd_perform_relocation to do nothing. */ |
| 82 | HOWTO (MIPS_R_IGNORE, /* type */ |
| 83 | 0, /* rightshift */ |
| 84 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 85 | 8, /* bitsize */ |
| 86 | FALSE, /* pc_relative */ |
| 87 | 0, /* bitpos */ |
| 88 | complain_overflow_dont, /* complain_on_overflow */ |
| 89 | 0, /* special_function */ |
| 90 | "IGNORE", /* name */ |
| 91 | FALSE, /* partial_inplace */ |
| 92 | 0, /* src_mask */ |
| 93 | 0, /* dst_mask */ |
| 94 | FALSE), /* pcrel_offset */ |
| 95 | |
| 96 | /* A 16 bit reference to a symbol, normally from a data section. */ |
| 97 | HOWTO (MIPS_R_REFHALF, /* type */ |
| 98 | 0, /* rightshift */ |
| 99 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 100 | 16, /* bitsize */ |
| 101 | FALSE, /* pc_relative */ |
| 102 | 0, /* bitpos */ |
| 103 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 104 | mips_generic_reloc, /* special_function */ |
| 105 | "REFHALF", /* name */ |
| 106 | TRUE, /* partial_inplace */ |
| 107 | 0xffff, /* src_mask */ |
| 108 | 0xffff, /* dst_mask */ |
| 109 | FALSE), /* pcrel_offset */ |
| 110 | |
| 111 | /* A 32 bit reference to a symbol, normally from a data section. */ |
| 112 | HOWTO (MIPS_R_REFWORD, /* type */ |
| 113 | 0, /* rightshift */ |
| 114 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 115 | 32, /* bitsize */ |
| 116 | FALSE, /* pc_relative */ |
| 117 | 0, /* bitpos */ |
| 118 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 119 | mips_generic_reloc, /* special_function */ |
| 120 | "REFWORD", /* name */ |
| 121 | TRUE, /* partial_inplace */ |
| 122 | 0xffffffff, /* src_mask */ |
| 123 | 0xffffffff, /* dst_mask */ |
| 124 | FALSE), /* pcrel_offset */ |
| 125 | |
| 126 | /* A 26 bit absolute jump address. */ |
| 127 | HOWTO (MIPS_R_JMPADDR, /* type */ |
| 128 | 2, /* rightshift */ |
| 129 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 130 | 26, /* bitsize */ |
| 131 | FALSE, /* pc_relative */ |
| 132 | 0, /* bitpos */ |
| 133 | complain_overflow_dont, /* complain_on_overflow */ |
| 134 | /* This needs complex overflow |
| 135 | detection, because the upper four |
| 136 | bits must match the PC. */ |
| 137 | mips_generic_reloc, /* special_function */ |
| 138 | "JMPADDR", /* name */ |
| 139 | TRUE, /* partial_inplace */ |
| 140 | 0x3ffffff, /* src_mask */ |
| 141 | 0x3ffffff, /* dst_mask */ |
| 142 | FALSE), /* pcrel_offset */ |
| 143 | |
| 144 | /* The high 16 bits of a symbol value. Handled by the function |
| 145 | mips_refhi_reloc. */ |
| 146 | HOWTO (MIPS_R_REFHI, /* type */ |
| 147 | 16, /* rightshift */ |
| 148 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 149 | 16, /* bitsize */ |
| 150 | FALSE, /* pc_relative */ |
| 151 | 0, /* bitpos */ |
| 152 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 153 | mips_refhi_reloc, /* special_function */ |
| 154 | "REFHI", /* name */ |
| 155 | TRUE, /* partial_inplace */ |
| 156 | 0xffff, /* src_mask */ |
| 157 | 0xffff, /* dst_mask */ |
| 158 | FALSE), /* pcrel_offset */ |
| 159 | |
| 160 | /* The low 16 bits of a symbol value. */ |
| 161 | HOWTO (MIPS_R_REFLO, /* type */ |
| 162 | 0, /* rightshift */ |
| 163 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 164 | 16, /* bitsize */ |
| 165 | FALSE, /* pc_relative */ |
| 166 | 0, /* bitpos */ |
| 167 | complain_overflow_dont, /* complain_on_overflow */ |
| 168 | mips_reflo_reloc, /* special_function */ |
| 169 | "REFLO", /* name */ |
| 170 | TRUE, /* partial_inplace */ |
| 171 | 0xffff, /* src_mask */ |
| 172 | 0xffff, /* dst_mask */ |
| 173 | FALSE), /* pcrel_offset */ |
| 174 | |
| 175 | /* A reference to an offset from the gp register. Handled by the |
| 176 | function mips_gprel_reloc. */ |
| 177 | HOWTO (MIPS_R_GPREL, /* type */ |
| 178 | 0, /* rightshift */ |
| 179 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 180 | 16, /* bitsize */ |
| 181 | FALSE, /* pc_relative */ |
| 182 | 0, /* bitpos */ |
| 183 | complain_overflow_signed, /* complain_on_overflow */ |
| 184 | mips_gprel_reloc, /* special_function */ |
| 185 | "GPREL", /* name */ |
| 186 | TRUE, /* partial_inplace */ |
| 187 | 0xffff, /* src_mask */ |
| 188 | 0xffff, /* dst_mask */ |
| 189 | FALSE), /* pcrel_offset */ |
| 190 | |
| 191 | /* A reference to a literal using an offset from the gp register. |
| 192 | Handled by the function mips_gprel_reloc. */ |
| 193 | HOWTO (MIPS_R_LITERAL, /* type */ |
| 194 | 0, /* rightshift */ |
| 195 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 196 | 16, /* bitsize */ |
| 197 | FALSE, /* pc_relative */ |
| 198 | 0, /* bitpos */ |
| 199 | complain_overflow_signed, /* complain_on_overflow */ |
| 200 | mips_gprel_reloc, /* special_function */ |
| 201 | "LITERAL", /* name */ |
| 202 | TRUE, /* partial_inplace */ |
| 203 | 0xffff, /* src_mask */ |
| 204 | 0xffff, /* dst_mask */ |
| 205 | FALSE), /* pcrel_offset */ |
| 206 | |
| 207 | EMPTY_HOWTO (8), |
| 208 | EMPTY_HOWTO (9), |
| 209 | EMPTY_HOWTO (10), |
| 210 | EMPTY_HOWTO (11), |
| 211 | |
| 212 | /* FIXME: This relocation is used (internally only) to represent branches |
| 213 | when assembling. It should never appear in output files, and |
| 214 | be removed. (It used to be used for embedded-PIC support.) */ |
| 215 | HOWTO (MIPS_R_PCREL16, /* type */ |
| 216 | 2, /* rightshift */ |
| 217 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 218 | 16, /* bitsize */ |
| 219 | TRUE, /* pc_relative */ |
| 220 | 0, /* bitpos */ |
| 221 | complain_overflow_signed, /* complain_on_overflow */ |
| 222 | mips_generic_reloc, /* special_function */ |
| 223 | "PCREL16", /* name */ |
| 224 | TRUE, /* partial_inplace */ |
| 225 | 0xffff, /* src_mask */ |
| 226 | 0xffff, /* dst_mask */ |
| 227 | TRUE), /* pcrel_offset */ |
| 228 | }; |
| 229 | |
| 230 | #define MIPS_HOWTO_COUNT \ |
| 231 | (sizeof mips_howto_table / sizeof mips_howto_table[0]) |
| 232 | \f |
| 233 | /* See whether the magic number matches. */ |
| 234 | |
| 235 | static bfd_boolean |
| 236 | mips_ecoff_bad_format_hook (bfd * abfd, void * filehdr) |
| 237 | { |
| 238 | struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr; |
| 239 | |
| 240 | switch (internal_f->f_magic) |
| 241 | { |
| 242 | case MIPS_MAGIC_1: |
| 243 | /* I don't know what endianness this implies. */ |
| 244 | return TRUE; |
| 245 | |
| 246 | case MIPS_MAGIC_BIG: |
| 247 | case MIPS_MAGIC_BIG2: |
| 248 | case MIPS_MAGIC_BIG3: |
| 249 | return bfd_big_endian (abfd); |
| 250 | |
| 251 | case MIPS_MAGIC_LITTLE: |
| 252 | case MIPS_MAGIC_LITTLE2: |
| 253 | case MIPS_MAGIC_LITTLE3: |
| 254 | return bfd_little_endian (abfd); |
| 255 | |
| 256 | default: |
| 257 | return FALSE; |
| 258 | } |
| 259 | } |
| 260 | \f |
| 261 | /* Reloc handling. MIPS ECOFF relocs are packed into 8 bytes in |
| 262 | external form. They use a bit which indicates whether the symbol |
| 263 | is external. */ |
| 264 | |
| 265 | /* Swap a reloc in. */ |
| 266 | |
| 267 | static void |
| 268 | mips_ecoff_swap_reloc_in (bfd * abfd, |
| 269 | void * ext_ptr, |
| 270 | struct internal_reloc *intern) |
| 271 | { |
| 272 | const RELOC *ext = (RELOC *) ext_ptr; |
| 273 | |
| 274 | intern->r_vaddr = H_GET_32 (abfd, ext->r_vaddr); |
| 275 | if (bfd_header_big_endian (abfd)) |
| 276 | { |
| 277 | intern->r_symndx = (((int) ext->r_bits[0] |
| 278 | << RELOC_BITS0_SYMNDX_SH_LEFT_BIG) |
| 279 | | ((int) ext->r_bits[1] |
| 280 | << RELOC_BITS1_SYMNDX_SH_LEFT_BIG) |
| 281 | | ((int) ext->r_bits[2] |
| 282 | << RELOC_BITS2_SYMNDX_SH_LEFT_BIG)); |
| 283 | intern->r_type = ((ext->r_bits[3] & RELOC_BITS3_TYPE_BIG) |
| 284 | >> RELOC_BITS3_TYPE_SH_BIG); |
| 285 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_BIG) != 0; |
| 286 | } |
| 287 | else |
| 288 | { |
| 289 | intern->r_symndx = (((int) ext->r_bits[0] |
| 290 | << RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE) |
| 291 | | ((int) ext->r_bits[1] |
| 292 | << RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE) |
| 293 | | ((int) ext->r_bits[2] |
| 294 | << RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE)); |
| 295 | intern->r_type = (((ext->r_bits[3] & RELOC_BITS3_TYPE_LITTLE) |
| 296 | >> RELOC_BITS3_TYPE_SH_LITTLE) |
| 297 | | ((ext->r_bits[3] & RELOC_BITS3_TYPEHI_LITTLE) |
| 298 | << RELOC_BITS3_TYPEHI_SH_LITTLE)); |
| 299 | intern->r_extern = (ext->r_bits[3] & RELOC_BITS3_EXTERN_LITTLE) != 0; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | /* Swap a reloc out. */ |
| 304 | |
| 305 | static void |
| 306 | mips_ecoff_swap_reloc_out (bfd * abfd, |
| 307 | const struct internal_reloc * intern, |
| 308 | void * dst) |
| 309 | { |
| 310 | RELOC *ext = (RELOC *) dst; |
| 311 | long r_symndx; |
| 312 | |
| 313 | BFD_ASSERT (intern->r_extern |
| 314 | || (intern->r_symndx >= 0 && intern->r_symndx <= 12)); |
| 315 | |
| 316 | r_symndx = intern->r_symndx; |
| 317 | |
| 318 | H_PUT_32 (abfd, intern->r_vaddr, ext->r_vaddr); |
| 319 | if (bfd_header_big_endian (abfd)) |
| 320 | { |
| 321 | ext->r_bits[0] = r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_BIG; |
| 322 | ext->r_bits[1] = r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_BIG; |
| 323 | ext->r_bits[2] = r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_BIG; |
| 324 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_BIG) |
| 325 | & RELOC_BITS3_TYPE_BIG) |
| 326 | | (intern->r_extern ? RELOC_BITS3_EXTERN_BIG : 0)); |
| 327 | } |
| 328 | else |
| 329 | { |
| 330 | ext->r_bits[0] = r_symndx >> RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE; |
| 331 | ext->r_bits[1] = r_symndx >> RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE; |
| 332 | ext->r_bits[2] = r_symndx >> RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE; |
| 333 | ext->r_bits[3] = (((intern->r_type << RELOC_BITS3_TYPE_SH_LITTLE) |
| 334 | & RELOC_BITS3_TYPE_LITTLE) |
| 335 | | ((intern->r_type >> RELOC_BITS3_TYPEHI_SH_LITTLE |
| 336 | & RELOC_BITS3_TYPEHI_LITTLE)) |
| 337 | | (intern->r_extern ? RELOC_BITS3_EXTERN_LITTLE : 0)); |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | /* Finish canonicalizing a reloc. Part of this is generic to all |
| 342 | ECOFF targets, and that part is in ecoff.c. The rest is done in |
| 343 | this backend routine. It must fill in the howto field. */ |
| 344 | |
| 345 | static void |
| 346 | mips_adjust_reloc_in (bfd *abfd, |
| 347 | const struct internal_reloc *intern, |
| 348 | arelent *rptr) |
| 349 | { |
| 350 | if (intern->r_type > MIPS_R_PCREL16) |
| 351 | abort (); |
| 352 | |
| 353 | if (! intern->r_extern |
| 354 | && (intern->r_type == MIPS_R_GPREL |
| 355 | || intern->r_type == MIPS_R_LITERAL)) |
| 356 | rptr->addend += ecoff_data (abfd)->gp; |
| 357 | |
| 358 | /* If the type is MIPS_R_IGNORE, make sure this is a reference to |
| 359 | the absolute section so that the reloc is ignored. */ |
| 360 | if (intern->r_type == MIPS_R_IGNORE) |
| 361 | rptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; |
| 362 | |
| 363 | rptr->howto = &mips_howto_table[intern->r_type]; |
| 364 | } |
| 365 | |
| 366 | /* Make any adjustments needed to a reloc before writing it out. None |
| 367 | are needed for MIPS. */ |
| 368 | |
| 369 | static void |
| 370 | mips_adjust_reloc_out (bfd *abfd ATTRIBUTE_UNUSED, |
| 371 | const arelent *rel ATTRIBUTE_UNUSED, |
| 372 | struct internal_reloc *intern ATTRIBUTE_UNUSED) |
| 373 | { |
| 374 | } |
| 375 | |
| 376 | /* ECOFF relocs are either against external symbols, or against |
| 377 | sections. If we are producing relocatable output, and the reloc |
| 378 | is against an external symbol, and nothing has given us any |
| 379 | additional addend, the resulting reloc will also be against the |
| 380 | same symbol. In such a case, we don't want to change anything |
| 381 | about the way the reloc is handled, since it will all be done at |
| 382 | final link time. Rather than put special case code into |
| 383 | bfd_perform_relocation, all the reloc types use this howto |
| 384 | function. It just short circuits the reloc if producing |
| 385 | relocatable output against an external symbol. */ |
| 386 | |
| 387 | static bfd_reloc_status_type |
| 388 | mips_generic_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| 389 | arelent *reloc_entry, |
| 390 | asymbol *symbol, |
| 391 | void * data ATTRIBUTE_UNUSED, |
| 392 | asection *input_section, |
| 393 | bfd *output_bfd, |
| 394 | char **error_message ATTRIBUTE_UNUSED) |
| 395 | { |
| 396 | if (output_bfd != (bfd *) NULL |
| 397 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
| 398 | && reloc_entry->addend == 0) |
| 399 | { |
| 400 | reloc_entry->address += input_section->output_offset; |
| 401 | return bfd_reloc_ok; |
| 402 | } |
| 403 | |
| 404 | return bfd_reloc_continue; |
| 405 | } |
| 406 | |
| 407 | /* Do a REFHI relocation. This has to be done in combination with a |
| 408 | REFLO reloc, because there is a carry from the REFLO to the REFHI. |
| 409 | Here we just save the information we need; we do the actual |
| 410 | relocation when we see the REFLO. MIPS ECOFF requires that the |
| 411 | REFLO immediately follow the REFHI. As a GNU extension, we permit |
| 412 | an arbitrary number of HI relocs to be associated with a single LO |
| 413 | reloc. This extension permits gcc to output the HI and LO relocs |
| 414 | itself. */ |
| 415 | |
| 416 | struct mips_hi |
| 417 | { |
| 418 | struct mips_hi *next; |
| 419 | bfd_byte *addr; |
| 420 | bfd_vma addend; |
| 421 | }; |
| 422 | |
| 423 | /* FIXME: This should not be a static variable. */ |
| 424 | |
| 425 | static struct mips_hi *mips_refhi_list; |
| 426 | |
| 427 | static bfd_reloc_status_type |
| 428 | mips_refhi_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| 429 | arelent *reloc_entry, |
| 430 | asymbol *symbol, |
| 431 | void * data, |
| 432 | asection *input_section, |
| 433 | bfd *output_bfd, |
| 434 | char **error_message ATTRIBUTE_UNUSED) |
| 435 | { |
| 436 | bfd_reloc_status_type ret; |
| 437 | bfd_vma relocation; |
| 438 | struct mips_hi *n; |
| 439 | |
| 440 | /* If we're relocating, and this an external symbol, we don't want |
| 441 | to change anything. */ |
| 442 | if (output_bfd != (bfd *) NULL |
| 443 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
| 444 | && reloc_entry->addend == 0) |
| 445 | { |
| 446 | reloc_entry->address += input_section->output_offset; |
| 447 | return bfd_reloc_ok; |
| 448 | } |
| 449 | |
| 450 | ret = bfd_reloc_ok; |
| 451 | if (bfd_is_und_section (symbol->section) |
| 452 | && output_bfd == (bfd *) NULL) |
| 453 | ret = bfd_reloc_undefined; |
| 454 | |
| 455 | if (bfd_is_com_section (symbol->section)) |
| 456 | relocation = 0; |
| 457 | else |
| 458 | relocation = symbol->value; |
| 459 | |
| 460 | relocation += symbol->section->output_section->vma; |
| 461 | relocation += symbol->section->output_offset; |
| 462 | relocation += reloc_entry->addend; |
| 463 | |
| 464 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
| 465 | return bfd_reloc_outofrange; |
| 466 | |
| 467 | /* Save the information, and let REFLO do the actual relocation. */ |
| 468 | n = (struct mips_hi *) bfd_malloc ((bfd_size_type) sizeof *n); |
| 469 | if (n == NULL) |
| 470 | return bfd_reloc_outofrange; |
| 471 | n->addr = (bfd_byte *) data + reloc_entry->address; |
| 472 | n->addend = relocation; |
| 473 | n->next = mips_refhi_list; |
| 474 | mips_refhi_list = n; |
| 475 | |
| 476 | if (output_bfd != (bfd *) NULL) |
| 477 | reloc_entry->address += input_section->output_offset; |
| 478 | |
| 479 | return ret; |
| 480 | } |
| 481 | |
| 482 | /* Do a REFLO relocation. This is a straightforward 16 bit inplace |
| 483 | relocation; this function exists in order to do the REFHI |
| 484 | relocation described above. */ |
| 485 | |
| 486 | static bfd_reloc_status_type |
| 487 | mips_reflo_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| 488 | arelent *reloc_entry, |
| 489 | asymbol *symbol, |
| 490 | void * data, |
| 491 | asection *input_section, |
| 492 | bfd *output_bfd, |
| 493 | char **error_message ATTRIBUTE_UNUSED) |
| 494 | { |
| 495 | if (mips_refhi_list != NULL) |
| 496 | { |
| 497 | struct mips_hi *l; |
| 498 | |
| 499 | l = mips_refhi_list; |
| 500 | while (l != NULL) |
| 501 | { |
| 502 | unsigned long insn; |
| 503 | unsigned long val; |
| 504 | unsigned long vallo; |
| 505 | struct mips_hi *next; |
| 506 | |
| 507 | if (! bfd_reloc_offset_in_range (reloc_entry->howto, abfd, |
| 508 | input_section, |
| 509 | reloc_entry->address |
| 510 | * bfd_octets_per_byte (abfd))) |
| 511 | return bfd_reloc_outofrange; |
| 512 | |
| 513 | /* Do the REFHI relocation. Note that we actually don't |
| 514 | need to know anything about the REFLO itself, except |
| 515 | where to find the low 16 bits of the addend needed by the |
| 516 | REFHI. */ |
| 517 | insn = bfd_get_32 (abfd, l->addr); |
| 518 | vallo = (bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address) |
| 519 | & 0xffff); |
| 520 | val = ((insn & 0xffff) << 16) + vallo; |
| 521 | val += l->addend; |
| 522 | |
| 523 | /* The low order 16 bits are always treated as a signed |
| 524 | value. Therefore, a negative value in the low order bits |
| 525 | requires an adjustment in the high order bits. We need |
| 526 | to make this adjustment in two ways: once for the bits we |
| 527 | took from the data, and once for the bits we are putting |
| 528 | back in to the data. */ |
| 529 | if ((vallo & 0x8000) != 0) |
| 530 | val -= 0x10000; |
| 531 | if ((val & 0x8000) != 0) |
| 532 | val += 0x10000; |
| 533 | |
| 534 | insn = (insn &~ (unsigned) 0xffff) | ((val >> 16) & 0xffff); |
| 535 | bfd_put_32 (abfd, (bfd_vma) insn, l->addr); |
| 536 | |
| 537 | next = l->next; |
| 538 | free (l); |
| 539 | l = next; |
| 540 | } |
| 541 | |
| 542 | mips_refhi_list = NULL; |
| 543 | } |
| 544 | |
| 545 | /* Now do the REFLO reloc in the usual way. */ |
| 546 | return mips_generic_reloc (abfd, reloc_entry, symbol, data, |
| 547 | input_section, output_bfd, error_message); |
| 548 | } |
| 549 | |
| 550 | /* Do a GPREL relocation. This is a 16 bit value which must become |
| 551 | the offset from the gp register. */ |
| 552 | |
| 553 | static bfd_reloc_status_type |
| 554 | mips_gprel_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| 555 | arelent *reloc_entry, |
| 556 | asymbol *symbol, |
| 557 | void * data, |
| 558 | asection *input_section, |
| 559 | bfd *output_bfd, |
| 560 | char **error_message ATTRIBUTE_UNUSED) |
| 561 | { |
| 562 | bfd_boolean relocatable; |
| 563 | bfd_vma gp; |
| 564 | bfd_vma relocation; |
| 565 | unsigned long val; |
| 566 | unsigned long insn; |
| 567 | |
| 568 | /* If we're relocating, and this is an external symbol with no |
| 569 | addend, we don't want to change anything. We will only have an |
| 570 | addend if this is a newly created reloc, not read from an ECOFF |
| 571 | file. */ |
| 572 | if (output_bfd != (bfd *) NULL |
| 573 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
| 574 | && reloc_entry->addend == 0) |
| 575 | { |
| 576 | reloc_entry->address += input_section->output_offset; |
| 577 | return bfd_reloc_ok; |
| 578 | } |
| 579 | |
| 580 | if (output_bfd != (bfd *) NULL) |
| 581 | relocatable = TRUE; |
| 582 | else |
| 583 | { |
| 584 | relocatable = FALSE; |
| 585 | output_bfd = symbol->section->output_section->owner; |
| 586 | } |
| 587 | |
| 588 | if (bfd_is_und_section (symbol->section) && ! relocatable) |
| 589 | return bfd_reloc_undefined; |
| 590 | |
| 591 | /* We have to figure out the gp value, so that we can adjust the |
| 592 | symbol value correctly. We look up the symbol _gp in the output |
| 593 | BFD. If we can't find it, we're stuck. We cache it in the ECOFF |
| 594 | target data. We don't need to adjust the symbol value for an |
| 595 | external symbol if we are producing relocatable output. */ |
| 596 | gp = _bfd_get_gp_value (output_bfd); |
| 597 | if (gp == 0 |
| 598 | && (! relocatable |
| 599 | || (symbol->flags & BSF_SECTION_SYM) != 0)) |
| 600 | { |
| 601 | if (relocatable) |
| 602 | { |
| 603 | /* Make up a value. */ |
| 604 | gp = symbol->section->output_section->vma + 0x4000; |
| 605 | _bfd_set_gp_value (output_bfd, gp); |
| 606 | } |
| 607 | else |
| 608 | { |
| 609 | unsigned int count; |
| 610 | asymbol **sym; |
| 611 | unsigned int i; |
| 612 | |
| 613 | count = bfd_get_symcount (output_bfd); |
| 614 | sym = bfd_get_outsymbols (output_bfd); |
| 615 | |
| 616 | if (sym == (asymbol **) NULL) |
| 617 | i = count; |
| 618 | else |
| 619 | { |
| 620 | for (i = 0; i < count; i++, sym++) |
| 621 | { |
| 622 | register const char *name; |
| 623 | |
| 624 | name = bfd_asymbol_name (*sym); |
| 625 | if (*name == '_' && strcmp (name, "_gp") == 0) |
| 626 | { |
| 627 | gp = bfd_asymbol_value (*sym); |
| 628 | _bfd_set_gp_value (output_bfd, gp); |
| 629 | break; |
| 630 | } |
| 631 | } |
| 632 | } |
| 633 | |
| 634 | if (i >= count) |
| 635 | { |
| 636 | /* Only get the error once. */ |
| 637 | gp = 4; |
| 638 | _bfd_set_gp_value (output_bfd, gp); |
| 639 | *error_message = |
| 640 | (char *) _("GP relative relocation when _gp not defined"); |
| 641 | return bfd_reloc_dangerous; |
| 642 | } |
| 643 | } |
| 644 | } |
| 645 | |
| 646 | if (bfd_is_com_section (symbol->section)) |
| 647 | relocation = 0; |
| 648 | else |
| 649 | relocation = symbol->value; |
| 650 | |
| 651 | relocation += symbol->section->output_section->vma; |
| 652 | relocation += symbol->section->output_offset; |
| 653 | |
| 654 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
| 655 | return bfd_reloc_outofrange; |
| 656 | |
| 657 | insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
| 658 | |
| 659 | /* Set val to the offset into the section or symbol. */ |
| 660 | val = ((insn & 0xffff) + reloc_entry->addend) & 0xffff; |
| 661 | if (val & 0x8000) |
| 662 | val -= 0x10000; |
| 663 | |
| 664 | /* Adjust val for the final section location and GP value. If we |
| 665 | are producing relocatable output, we don't want to do this for |
| 666 | an external symbol. */ |
| 667 | if (! relocatable |
| 668 | || (symbol->flags & BSF_SECTION_SYM) != 0) |
| 669 | val += relocation - gp; |
| 670 | |
| 671 | insn = (insn &~ (unsigned) 0xffff) | (val & 0xffff); |
| 672 | bfd_put_32 (abfd, (bfd_vma) insn, (bfd_byte *) data + reloc_entry->address); |
| 673 | |
| 674 | if (relocatable) |
| 675 | reloc_entry->address += input_section->output_offset; |
| 676 | |
| 677 | /* Make sure it fit in 16 bits. */ |
| 678 | if ((long) val >= 0x8000 || (long) val < -0x8000) |
| 679 | return bfd_reloc_overflow; |
| 680 | |
| 681 | return bfd_reloc_ok; |
| 682 | } |
| 683 | |
| 684 | /* Get the howto structure for a generic reloc type. */ |
| 685 | |
| 686 | static reloc_howto_type * |
| 687 | mips_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 688 | bfd_reloc_code_real_type code) |
| 689 | { |
| 690 | int mips_type; |
| 691 | |
| 692 | switch (code) |
| 693 | { |
| 694 | case BFD_RELOC_16: |
| 695 | mips_type = MIPS_R_REFHALF; |
| 696 | break; |
| 697 | case BFD_RELOC_32: |
| 698 | case BFD_RELOC_CTOR: |
| 699 | mips_type = MIPS_R_REFWORD; |
| 700 | break; |
| 701 | case BFD_RELOC_MIPS_JMP: |
| 702 | mips_type = MIPS_R_JMPADDR; |
| 703 | break; |
| 704 | case BFD_RELOC_HI16_S: |
| 705 | mips_type = MIPS_R_REFHI; |
| 706 | break; |
| 707 | case BFD_RELOC_LO16: |
| 708 | mips_type = MIPS_R_REFLO; |
| 709 | break; |
| 710 | case BFD_RELOC_GPREL16: |
| 711 | mips_type = MIPS_R_GPREL; |
| 712 | break; |
| 713 | case BFD_RELOC_MIPS_LITERAL: |
| 714 | mips_type = MIPS_R_LITERAL; |
| 715 | break; |
| 716 | case BFD_RELOC_16_PCREL_S2: |
| 717 | mips_type = MIPS_R_PCREL16; |
| 718 | break; |
| 719 | default: |
| 720 | return (reloc_howto_type *) NULL; |
| 721 | } |
| 722 | |
| 723 | return &mips_howto_table[mips_type]; |
| 724 | } |
| 725 | |
| 726 | static reloc_howto_type * |
| 727 | mips_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 728 | const char *r_name) |
| 729 | { |
| 730 | unsigned int i; |
| 731 | |
| 732 | for (i = 0; |
| 733 | i < sizeof (mips_howto_table) / sizeof (mips_howto_table[0]); |
| 734 | i++) |
| 735 | if (mips_howto_table[i].name != NULL |
| 736 | && strcasecmp (mips_howto_table[i].name, r_name) == 0) |
| 737 | return &mips_howto_table[i]; |
| 738 | |
| 739 | return NULL; |
| 740 | } |
| 741 | \f |
| 742 | /* A helper routine for mips_relocate_section which handles the REFHI |
| 743 | relocations. The REFHI relocation must be followed by a REFLO |
| 744 | relocation, and the addend used is formed from the addends of both |
| 745 | instructions. */ |
| 746 | |
| 747 | static void |
| 748 | mips_relocate_hi (struct internal_reloc *refhi, |
| 749 | struct internal_reloc *reflo, |
| 750 | bfd *input_bfd, |
| 751 | asection *input_section, |
| 752 | bfd_byte *contents, |
| 753 | bfd_vma relocation) |
| 754 | { |
| 755 | unsigned long insn; |
| 756 | unsigned long val; |
| 757 | unsigned long vallo; |
| 758 | |
| 759 | if (refhi == NULL) |
| 760 | return; |
| 761 | |
| 762 | insn = bfd_get_32 (input_bfd, |
| 763 | contents + refhi->r_vaddr - input_section->vma); |
| 764 | if (reflo == NULL) |
| 765 | vallo = 0; |
| 766 | else |
| 767 | vallo = (bfd_get_32 (input_bfd, |
| 768 | contents + reflo->r_vaddr - input_section->vma) |
| 769 | & 0xffff); |
| 770 | |
| 771 | val = ((insn & 0xffff) << 16) + vallo; |
| 772 | val += relocation; |
| 773 | |
| 774 | /* The low order 16 bits are always treated as a signed value. |
| 775 | Therefore, a negative value in the low order bits requires an |
| 776 | adjustment in the high order bits. We need to make this |
| 777 | adjustment in two ways: once for the bits we took from the data, |
| 778 | and once for the bits we are putting back in to the data. */ |
| 779 | if ((vallo & 0x8000) != 0) |
| 780 | val -= 0x10000; |
| 781 | |
| 782 | if ((val & 0x8000) != 0) |
| 783 | val += 0x10000; |
| 784 | |
| 785 | insn = (insn &~ (unsigned) 0xffff) | ((val >> 16) & 0xffff); |
| 786 | bfd_put_32 (input_bfd, (bfd_vma) insn, |
| 787 | contents + refhi->r_vaddr - input_section->vma); |
| 788 | } |
| 789 | |
| 790 | /* Relocate a section while linking a MIPS ECOFF file. */ |
| 791 | |
| 792 | static bfd_boolean |
| 793 | mips_relocate_section (bfd *output_bfd, |
| 794 | struct bfd_link_info *info, |
| 795 | bfd *input_bfd, |
| 796 | asection *input_section, |
| 797 | bfd_byte *contents, |
| 798 | void * external_relocs) |
| 799 | { |
| 800 | asection **symndx_to_section; |
| 801 | struct ecoff_link_hash_entry **sym_hashes; |
| 802 | bfd_vma gp; |
| 803 | bfd_boolean gp_undefined; |
| 804 | struct external_reloc *ext_rel; |
| 805 | struct external_reloc *ext_rel_end; |
| 806 | unsigned int i; |
| 807 | bfd_boolean got_lo; |
| 808 | struct internal_reloc lo_int_rel; |
| 809 | bfd_size_type amt; |
| 810 | |
| 811 | BFD_ASSERT (input_bfd->xvec->byteorder |
| 812 | == output_bfd->xvec->byteorder); |
| 813 | |
| 814 | /* We keep a table mapping the symndx found in an internal reloc to |
| 815 | the appropriate section. This is faster than looking up the |
| 816 | section by name each time. */ |
| 817 | symndx_to_section = ecoff_data (input_bfd)->symndx_to_section; |
| 818 | if (symndx_to_section == (asection **) NULL) |
| 819 | { |
| 820 | amt = NUM_RELOC_SECTIONS * sizeof (asection *); |
| 821 | symndx_to_section = (asection **) bfd_alloc (input_bfd, amt); |
| 822 | if (!symndx_to_section) |
| 823 | return FALSE; |
| 824 | |
| 825 | symndx_to_section[RELOC_SECTION_NONE] = NULL; |
| 826 | symndx_to_section[RELOC_SECTION_TEXT] = |
| 827 | bfd_get_section_by_name (input_bfd, ".text"); |
| 828 | symndx_to_section[RELOC_SECTION_RDATA] = |
| 829 | bfd_get_section_by_name (input_bfd, ".rdata"); |
| 830 | symndx_to_section[RELOC_SECTION_DATA] = |
| 831 | bfd_get_section_by_name (input_bfd, ".data"); |
| 832 | symndx_to_section[RELOC_SECTION_SDATA] = |
| 833 | bfd_get_section_by_name (input_bfd, ".sdata"); |
| 834 | symndx_to_section[RELOC_SECTION_SBSS] = |
| 835 | bfd_get_section_by_name (input_bfd, ".sbss"); |
| 836 | symndx_to_section[RELOC_SECTION_BSS] = |
| 837 | bfd_get_section_by_name (input_bfd, ".bss"); |
| 838 | symndx_to_section[RELOC_SECTION_INIT] = |
| 839 | bfd_get_section_by_name (input_bfd, ".init"); |
| 840 | symndx_to_section[RELOC_SECTION_LIT8] = |
| 841 | bfd_get_section_by_name (input_bfd, ".lit8"); |
| 842 | symndx_to_section[RELOC_SECTION_LIT4] = |
| 843 | bfd_get_section_by_name (input_bfd, ".lit4"); |
| 844 | symndx_to_section[RELOC_SECTION_XDATA] = NULL; |
| 845 | symndx_to_section[RELOC_SECTION_PDATA] = NULL; |
| 846 | symndx_to_section[RELOC_SECTION_FINI] = |
| 847 | bfd_get_section_by_name (input_bfd, ".fini"); |
| 848 | symndx_to_section[RELOC_SECTION_LITA] = NULL; |
| 849 | symndx_to_section[RELOC_SECTION_ABS] = NULL; |
| 850 | |
| 851 | ecoff_data (input_bfd)->symndx_to_section = symndx_to_section; |
| 852 | } |
| 853 | |
| 854 | sym_hashes = ecoff_data (input_bfd)->sym_hashes; |
| 855 | |
| 856 | gp = _bfd_get_gp_value (output_bfd); |
| 857 | if (gp == 0) |
| 858 | gp_undefined = TRUE; |
| 859 | else |
| 860 | gp_undefined = FALSE; |
| 861 | |
| 862 | got_lo = FALSE; |
| 863 | |
| 864 | ext_rel = (struct external_reloc *) external_relocs; |
| 865 | ext_rel_end = ext_rel + input_section->reloc_count; |
| 866 | for (i = 0; ext_rel < ext_rel_end; ext_rel++, i++) |
| 867 | { |
| 868 | struct internal_reloc int_rel; |
| 869 | bfd_boolean use_lo = FALSE; |
| 870 | bfd_vma addend; |
| 871 | reloc_howto_type *howto; |
| 872 | struct ecoff_link_hash_entry *h = NULL; |
| 873 | asection *s = NULL; |
| 874 | bfd_vma relocation; |
| 875 | bfd_reloc_status_type r; |
| 876 | |
| 877 | if (! got_lo) |
| 878 | mips_ecoff_swap_reloc_in (input_bfd, ext_rel, &int_rel); |
| 879 | else |
| 880 | { |
| 881 | int_rel = lo_int_rel; |
| 882 | got_lo = FALSE; |
| 883 | } |
| 884 | |
| 885 | BFD_ASSERT (int_rel.r_type |
| 886 | < sizeof mips_howto_table / sizeof mips_howto_table[0]); |
| 887 | |
| 888 | /* The REFHI reloc requires special handling. It must be followed |
| 889 | by a REFLO reloc, and the addend is formed from both relocs. */ |
| 890 | if (int_rel.r_type == MIPS_R_REFHI) |
| 891 | { |
| 892 | struct external_reloc *lo_ext_rel; |
| 893 | |
| 894 | /* As a GNU extension, permit an arbitrary number of REFHI |
| 895 | relocs before the REFLO reloc. This permits gcc to emit |
| 896 | the HI and LO relocs itself. */ |
| 897 | for (lo_ext_rel = ext_rel + 1; |
| 898 | lo_ext_rel < ext_rel_end; |
| 899 | lo_ext_rel++) |
| 900 | { |
| 901 | mips_ecoff_swap_reloc_in (input_bfd, lo_ext_rel, |
| 902 | &lo_int_rel); |
| 903 | if (lo_int_rel.r_type != int_rel.r_type) |
| 904 | break; |
| 905 | } |
| 906 | |
| 907 | if (lo_ext_rel < ext_rel_end |
| 908 | && lo_int_rel.r_type == MIPS_R_REFLO |
| 909 | && int_rel.r_extern == lo_int_rel.r_extern |
| 910 | && int_rel.r_symndx == lo_int_rel.r_symndx) |
| 911 | { |
| 912 | use_lo = TRUE; |
| 913 | if (lo_ext_rel == ext_rel + 1) |
| 914 | got_lo = TRUE; |
| 915 | } |
| 916 | } |
| 917 | |
| 918 | howto = &mips_howto_table[int_rel.r_type]; |
| 919 | |
| 920 | if (int_rel.r_extern) |
| 921 | { |
| 922 | h = sym_hashes[int_rel.r_symndx]; |
| 923 | /* If h is NULL, that means that there is a reloc against an |
| 924 | external symbol which we thought was just a debugging |
| 925 | symbol. This should not happen. */ |
| 926 | if (h == (struct ecoff_link_hash_entry *) NULL) |
| 927 | abort (); |
| 928 | } |
| 929 | else |
| 930 | { |
| 931 | if (int_rel.r_symndx < 0 || int_rel.r_symndx >= NUM_RELOC_SECTIONS) |
| 932 | s = NULL; |
| 933 | else |
| 934 | s = symndx_to_section[int_rel.r_symndx]; |
| 935 | |
| 936 | if (s == (asection *) NULL) |
| 937 | abort (); |
| 938 | } |
| 939 | |
| 940 | /* The GPREL reloc uses an addend: the difference in the GP |
| 941 | values. */ |
| 942 | if (int_rel.r_type != MIPS_R_GPREL |
| 943 | && int_rel.r_type != MIPS_R_LITERAL) |
| 944 | addend = 0; |
| 945 | else |
| 946 | { |
| 947 | if (gp_undefined) |
| 948 | { |
| 949 | (*info->callbacks->reloc_dangerous) |
| 950 | (info, _("GP relative relocation used when GP not defined"), |
| 951 | input_bfd, input_section, |
| 952 | int_rel.r_vaddr - input_section->vma); |
| 953 | /* Only give the error once per link. */ |
| 954 | gp = 4; |
| 955 | _bfd_set_gp_value (output_bfd, gp); |
| 956 | gp_undefined = FALSE; |
| 957 | } |
| 958 | if (! int_rel.r_extern) |
| 959 | { |
| 960 | /* This is a relocation against a section. The current |
| 961 | addend in the instruction is the difference between |
| 962 | INPUT_SECTION->vma and the GP value of INPUT_BFD. We |
| 963 | must change this to be the difference between the |
| 964 | final definition (which will end up in RELOCATION) |
| 965 | and the GP value of OUTPUT_BFD (which is in GP). */ |
| 966 | addend = ecoff_data (input_bfd)->gp - gp; |
| 967 | } |
| 968 | else if (! bfd_link_relocatable (info) |
| 969 | || h->root.type == bfd_link_hash_defined |
| 970 | || h->root.type == bfd_link_hash_defweak) |
| 971 | { |
| 972 | /* This is a relocation against a defined symbol. The |
| 973 | current addend in the instruction is simply the |
| 974 | desired offset into the symbol (normally zero). We |
| 975 | are going to change this into a relocation against a |
| 976 | defined symbol, so we want the instruction to hold |
| 977 | the difference between the final definition of the |
| 978 | symbol (which will end up in RELOCATION) and the GP |
| 979 | value of OUTPUT_BFD (which is in GP). */ |
| 980 | addend = - gp; |
| 981 | } |
| 982 | else |
| 983 | { |
| 984 | /* This is a relocation against an undefined or common |
| 985 | symbol. The current addend in the instruction is |
| 986 | simply the desired offset into the symbol (normally |
| 987 | zero). We are generating relocatable output, and we |
| 988 | aren't going to define this symbol, so we just leave |
| 989 | the instruction alone. */ |
| 990 | addend = 0; |
| 991 | } |
| 992 | } |
| 993 | |
| 994 | if (bfd_link_relocatable (info)) |
| 995 | { |
| 996 | /* We are generating relocatable output, and must convert |
| 997 | the existing reloc. */ |
| 998 | if (int_rel.r_extern) |
| 999 | { |
| 1000 | if ((h->root.type == bfd_link_hash_defined |
| 1001 | || h->root.type == bfd_link_hash_defweak) |
| 1002 | && ! bfd_is_abs_section (h->root.u.def.section)) |
| 1003 | { |
| 1004 | const char *name; |
| 1005 | |
| 1006 | /* This symbol is defined in the output. Convert |
| 1007 | the reloc from being against the symbol to being |
| 1008 | against the section. */ |
| 1009 | |
| 1010 | /* Clear the r_extern bit. */ |
| 1011 | int_rel.r_extern = 0; |
| 1012 | |
| 1013 | /* Compute a new r_symndx value. */ |
| 1014 | s = h->root.u.def.section; |
| 1015 | name = bfd_get_section_name (output_bfd, |
| 1016 | s->output_section); |
| 1017 | |
| 1018 | int_rel.r_symndx = -1; |
| 1019 | switch (name[1]) |
| 1020 | { |
| 1021 | case 'b': |
| 1022 | if (strcmp (name, ".bss") == 0) |
| 1023 | int_rel.r_symndx = RELOC_SECTION_BSS; |
| 1024 | break; |
| 1025 | case 'd': |
| 1026 | if (strcmp (name, ".data") == 0) |
| 1027 | int_rel.r_symndx = RELOC_SECTION_DATA; |
| 1028 | break; |
| 1029 | case 'f': |
| 1030 | if (strcmp (name, ".fini") == 0) |
| 1031 | int_rel.r_symndx = RELOC_SECTION_FINI; |
| 1032 | break; |
| 1033 | case 'i': |
| 1034 | if (strcmp (name, ".init") == 0) |
| 1035 | int_rel.r_symndx = RELOC_SECTION_INIT; |
| 1036 | break; |
| 1037 | case 'l': |
| 1038 | if (strcmp (name, ".lit8") == 0) |
| 1039 | int_rel.r_symndx = RELOC_SECTION_LIT8; |
| 1040 | else if (strcmp (name, ".lit4") == 0) |
| 1041 | int_rel.r_symndx = RELOC_SECTION_LIT4; |
| 1042 | break; |
| 1043 | case 'r': |
| 1044 | if (strcmp (name, ".rdata") == 0) |
| 1045 | int_rel.r_symndx = RELOC_SECTION_RDATA; |
| 1046 | break; |
| 1047 | case 's': |
| 1048 | if (strcmp (name, ".sdata") == 0) |
| 1049 | int_rel.r_symndx = RELOC_SECTION_SDATA; |
| 1050 | else if (strcmp (name, ".sbss") == 0) |
| 1051 | int_rel.r_symndx = RELOC_SECTION_SBSS; |
| 1052 | break; |
| 1053 | case 't': |
| 1054 | if (strcmp (name, ".text") == 0) |
| 1055 | int_rel.r_symndx = RELOC_SECTION_TEXT; |
| 1056 | break; |
| 1057 | } |
| 1058 | |
| 1059 | if (int_rel.r_symndx == -1) |
| 1060 | abort (); |
| 1061 | |
| 1062 | /* Add the section VMA and the symbol value. */ |
| 1063 | relocation = (h->root.u.def.value |
| 1064 | + s->output_section->vma |
| 1065 | + s->output_offset); |
| 1066 | |
| 1067 | /* For a PC relative relocation, the object file |
| 1068 | currently holds just the addend. We must adjust |
| 1069 | by the address to get the right value. */ |
| 1070 | if (howto->pc_relative) |
| 1071 | relocation -= int_rel.r_vaddr - input_section->vma; |
| 1072 | |
| 1073 | h = NULL; |
| 1074 | } |
| 1075 | else |
| 1076 | { |
| 1077 | /* Change the symndx value to the right one for the |
| 1078 | output BFD. */ |
| 1079 | int_rel.r_symndx = h->indx; |
| 1080 | if (int_rel.r_symndx == -1) |
| 1081 | { |
| 1082 | /* This symbol is not being written out. */ |
| 1083 | (*info->callbacks->unattached_reloc) |
| 1084 | (info, h->root.root.string, input_bfd, input_section, |
| 1085 | int_rel.r_vaddr - input_section->vma); |
| 1086 | int_rel.r_symndx = 0; |
| 1087 | } |
| 1088 | relocation = 0; |
| 1089 | } |
| 1090 | } |
| 1091 | else |
| 1092 | { |
| 1093 | /* This is a relocation against a section. Adjust the |
| 1094 | value by the amount the section moved. */ |
| 1095 | relocation = (s->output_section->vma |
| 1096 | + s->output_offset |
| 1097 | - s->vma); |
| 1098 | } |
| 1099 | |
| 1100 | relocation += addend; |
| 1101 | addend = 0; |
| 1102 | |
| 1103 | /* Adjust a PC relative relocation by removing the reference |
| 1104 | to the original address in the section and including the |
| 1105 | reference to the new address. */ |
| 1106 | if (howto->pc_relative) |
| 1107 | relocation -= (input_section->output_section->vma |
| 1108 | + input_section->output_offset |
| 1109 | - input_section->vma); |
| 1110 | |
| 1111 | /* Adjust the contents. */ |
| 1112 | if (relocation == 0) |
| 1113 | r = bfd_reloc_ok; |
| 1114 | else |
| 1115 | { |
| 1116 | if (int_rel.r_type != MIPS_R_REFHI) |
| 1117 | r = _bfd_relocate_contents (howto, input_bfd, relocation, |
| 1118 | (contents |
| 1119 | + int_rel.r_vaddr |
| 1120 | - input_section->vma)); |
| 1121 | else |
| 1122 | { |
| 1123 | mips_relocate_hi (&int_rel, |
| 1124 | use_lo ? &lo_int_rel : NULL, |
| 1125 | input_bfd, input_section, contents, |
| 1126 | relocation); |
| 1127 | r = bfd_reloc_ok; |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | /* Adjust the reloc address. */ |
| 1132 | int_rel.r_vaddr += (input_section->output_section->vma |
| 1133 | + input_section->output_offset |
| 1134 | - input_section->vma); |
| 1135 | |
| 1136 | /* Save the changed reloc information. */ |
| 1137 | mips_ecoff_swap_reloc_out (input_bfd, &int_rel, ext_rel); |
| 1138 | } |
| 1139 | else |
| 1140 | { |
| 1141 | /* We are producing a final executable. */ |
| 1142 | if (int_rel.r_extern) |
| 1143 | { |
| 1144 | /* This is a reloc against a symbol. */ |
| 1145 | if (h->root.type == bfd_link_hash_defined |
| 1146 | || h->root.type == bfd_link_hash_defweak) |
| 1147 | { |
| 1148 | asection *hsec; |
| 1149 | |
| 1150 | hsec = h->root.u.def.section; |
| 1151 | relocation = (h->root.u.def.value |
| 1152 | + hsec->output_section->vma |
| 1153 | + hsec->output_offset); |
| 1154 | } |
| 1155 | else |
| 1156 | { |
| 1157 | (*info->callbacks->undefined_symbol) |
| 1158 | (info, h->root.root.string, input_bfd, input_section, |
| 1159 | int_rel.r_vaddr - input_section->vma, TRUE); |
| 1160 | relocation = 0; |
| 1161 | } |
| 1162 | } |
| 1163 | else |
| 1164 | { |
| 1165 | /* This is a reloc against a section. */ |
| 1166 | relocation = (s->output_section->vma |
| 1167 | + s->output_offset |
| 1168 | - s->vma); |
| 1169 | |
| 1170 | /* A PC relative reloc is already correct in the object |
| 1171 | file. Make it look like a pcrel_offset relocation by |
| 1172 | adding in the start address. */ |
| 1173 | if (howto->pc_relative) |
| 1174 | relocation += int_rel.r_vaddr; |
| 1175 | } |
| 1176 | |
| 1177 | if (int_rel.r_type != MIPS_R_REFHI) |
| 1178 | r = _bfd_final_link_relocate (howto, |
| 1179 | input_bfd, |
| 1180 | input_section, |
| 1181 | contents, |
| 1182 | (int_rel.r_vaddr |
| 1183 | - input_section->vma), |
| 1184 | relocation, |
| 1185 | addend); |
| 1186 | else |
| 1187 | { |
| 1188 | mips_relocate_hi (&int_rel, |
| 1189 | use_lo ? &lo_int_rel : NULL, |
| 1190 | input_bfd, input_section, contents, |
| 1191 | relocation); |
| 1192 | r = bfd_reloc_ok; |
| 1193 | } |
| 1194 | } |
| 1195 | |
| 1196 | /* MIPS_R_JMPADDR requires peculiar overflow detection. The |
| 1197 | instruction provides a 28 bit address (the two lower bits are |
| 1198 | implicit zeroes) which is combined with the upper four bits |
| 1199 | of the instruction address. */ |
| 1200 | if (r == bfd_reloc_ok |
| 1201 | && int_rel.r_type == MIPS_R_JMPADDR |
| 1202 | && (((relocation |
| 1203 | + addend |
| 1204 | + (int_rel.r_extern ? 0 : s->vma)) |
| 1205 | & 0xf0000000) |
| 1206 | != ((input_section->output_section->vma |
| 1207 | + input_section->output_offset |
| 1208 | + (int_rel.r_vaddr - input_section->vma)) |
| 1209 | & 0xf0000000))) |
| 1210 | r = bfd_reloc_overflow; |
| 1211 | |
| 1212 | if (r != bfd_reloc_ok) |
| 1213 | { |
| 1214 | switch (r) |
| 1215 | { |
| 1216 | default: |
| 1217 | case bfd_reloc_outofrange: |
| 1218 | abort (); |
| 1219 | case bfd_reloc_overflow: |
| 1220 | { |
| 1221 | const char *name; |
| 1222 | |
| 1223 | if (int_rel.r_extern) |
| 1224 | name = NULL; |
| 1225 | else |
| 1226 | name = bfd_section_name (input_bfd, s); |
| 1227 | (*info->callbacks->reloc_overflow) |
| 1228 | (info, (h ? &h->root : NULL), name, howto->name, |
| 1229 | (bfd_vma) 0, input_bfd, input_section, |
| 1230 | int_rel.r_vaddr - input_section->vma); |
| 1231 | } |
| 1232 | break; |
| 1233 | } |
| 1234 | } |
| 1235 | } |
| 1236 | |
| 1237 | return TRUE; |
| 1238 | } |
| 1239 | |
| 1240 | static void |
| 1241 | mips_ecoff_swap_coff_aux_in (bfd *abfd ATTRIBUTE_UNUSED, |
| 1242 | void *ext1 ATTRIBUTE_UNUSED, |
| 1243 | int type ATTRIBUTE_UNUSED, |
| 1244 | int in_class ATTRIBUTE_UNUSED, |
| 1245 | int indx ATTRIBUTE_UNUSED, |
| 1246 | int numaux ATTRIBUTE_UNUSED, |
| 1247 | void *in1 ATTRIBUTE_UNUSED) |
| 1248 | { |
| 1249 | } |
| 1250 | |
| 1251 | static void |
| 1252 | mips_ecoff_swap_coff_sym_in (bfd *abfd ATTRIBUTE_UNUSED, |
| 1253 | void *ext1 ATTRIBUTE_UNUSED, |
| 1254 | void *in1 ATTRIBUTE_UNUSED) |
| 1255 | { |
| 1256 | } |
| 1257 | |
| 1258 | static void |
| 1259 | mips_ecoff_swap_coff_lineno_in (bfd *abfd ATTRIBUTE_UNUSED, |
| 1260 | void *ext1 ATTRIBUTE_UNUSED, |
| 1261 | void *in1 ATTRIBUTE_UNUSED) |
| 1262 | { |
| 1263 | } |
| 1264 | |
| 1265 | static unsigned int |
| 1266 | mips_ecoff_swap_coff_aux_out (bfd *abfd ATTRIBUTE_UNUSED, |
| 1267 | void *inp ATTRIBUTE_UNUSED, |
| 1268 | int type ATTRIBUTE_UNUSED, |
| 1269 | int in_class ATTRIBUTE_UNUSED, |
| 1270 | int indx ATTRIBUTE_UNUSED, |
| 1271 | int numaux ATTRIBUTE_UNUSED, |
| 1272 | void *extp ATTRIBUTE_UNUSED) |
| 1273 | { |
| 1274 | return 0; |
| 1275 | } |
| 1276 | |
| 1277 | static unsigned int |
| 1278 | mips_ecoff_swap_coff_sym_out (bfd *abfd ATTRIBUTE_UNUSED, |
| 1279 | void *inp ATTRIBUTE_UNUSED, |
| 1280 | void *extp ATTRIBUTE_UNUSED) |
| 1281 | { |
| 1282 | return 0; |
| 1283 | } |
| 1284 | |
| 1285 | static unsigned int |
| 1286 | mips_ecoff_swap_coff_lineno_out (bfd *abfd ATTRIBUTE_UNUSED, |
| 1287 | void *inp ATTRIBUTE_UNUSED, |
| 1288 | void *extp ATTRIBUTE_UNUSED) |
| 1289 | { |
| 1290 | return 0; |
| 1291 | } |
| 1292 | |
| 1293 | static unsigned int |
| 1294 | mips_ecoff_swap_coff_reloc_out (bfd *abfd ATTRIBUTE_UNUSED, |
| 1295 | void *inp ATTRIBUTE_UNUSED, |
| 1296 | void *extp ATTRIBUTE_UNUSED) |
| 1297 | { |
| 1298 | return 0; |
| 1299 | } |
| 1300 | \f |
| 1301 | /* This is the ECOFF backend structure. The backend field of the |
| 1302 | target vector points to this. */ |
| 1303 | |
| 1304 | static const struct ecoff_backend_data mips_ecoff_backend_data = |
| 1305 | { |
| 1306 | /* COFF backend structure. */ |
| 1307 | { |
| 1308 | mips_ecoff_swap_coff_aux_in, mips_ecoff_swap_coff_sym_in, |
| 1309 | mips_ecoff_swap_coff_lineno_in, mips_ecoff_swap_coff_aux_out, |
| 1310 | mips_ecoff_swap_coff_sym_out, mips_ecoff_swap_coff_lineno_out, |
| 1311 | mips_ecoff_swap_coff_reloc_out, |
| 1312 | mips_ecoff_swap_filehdr_out, mips_ecoff_swap_aouthdr_out, |
| 1313 | mips_ecoff_swap_scnhdr_out, |
| 1314 | FILHSZ, AOUTSZ, SCNHSZ, 0, 0, 0, 0, FILNMLEN, TRUE, |
| 1315 | ECOFF_NO_LONG_SECTION_NAMES, 4, FALSE, 2, 32768, |
| 1316 | mips_ecoff_swap_filehdr_in, mips_ecoff_swap_aouthdr_in, |
| 1317 | mips_ecoff_swap_scnhdr_in, NULL, |
| 1318 | mips_ecoff_bad_format_hook, _bfd_ecoff_set_arch_mach_hook, |
| 1319 | _bfd_ecoff_mkobject_hook, _bfd_ecoff_styp_to_sec_flags, |
| 1320 | _bfd_ecoff_set_alignment_hook, _bfd_ecoff_slurp_symbol_table, |
| 1321 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| 1322 | NULL, NULL, NULL |
| 1323 | }, |
| 1324 | /* Supported architecture. */ |
| 1325 | bfd_arch_mips, |
| 1326 | /* Initial portion of armap string. */ |
| 1327 | "__________", |
| 1328 | /* The page boundary used to align sections in a demand-paged |
| 1329 | executable file. E.g., 0x1000. */ |
| 1330 | 0x1000, |
| 1331 | /* TRUE if the .rdata section is part of the text segment, as on the |
| 1332 | Alpha. FALSE if .rdata is part of the data segment, as on the |
| 1333 | MIPS. */ |
| 1334 | FALSE, |
| 1335 | /* Bitsize of constructor entries. */ |
| 1336 | 32, |
| 1337 | /* Reloc to use for constructor entries. */ |
| 1338 | &mips_howto_table[MIPS_R_REFWORD], |
| 1339 | { |
| 1340 | /* Symbol table magic number. */ |
| 1341 | magicSym, |
| 1342 | /* Alignment of debugging information. E.g., 4. */ |
| 1343 | 4, |
| 1344 | /* Sizes of external symbolic information. */ |
| 1345 | sizeof (struct hdr_ext), |
| 1346 | sizeof (struct dnr_ext), |
| 1347 | sizeof (struct pdr_ext), |
| 1348 | sizeof (struct sym_ext), |
| 1349 | sizeof (struct opt_ext), |
| 1350 | sizeof (struct fdr_ext), |
| 1351 | sizeof (struct rfd_ext), |
| 1352 | sizeof (struct ext_ext), |
| 1353 | /* Functions to swap in external symbolic data. */ |
| 1354 | ecoff_swap_hdr_in, |
| 1355 | ecoff_swap_dnr_in, |
| 1356 | ecoff_swap_pdr_in, |
| 1357 | ecoff_swap_sym_in, |
| 1358 | ecoff_swap_opt_in, |
| 1359 | ecoff_swap_fdr_in, |
| 1360 | ecoff_swap_rfd_in, |
| 1361 | ecoff_swap_ext_in, |
| 1362 | _bfd_ecoff_swap_tir_in, |
| 1363 | _bfd_ecoff_swap_rndx_in, |
| 1364 | /* Functions to swap out external symbolic data. */ |
| 1365 | ecoff_swap_hdr_out, |
| 1366 | ecoff_swap_dnr_out, |
| 1367 | ecoff_swap_pdr_out, |
| 1368 | ecoff_swap_sym_out, |
| 1369 | ecoff_swap_opt_out, |
| 1370 | ecoff_swap_fdr_out, |
| 1371 | ecoff_swap_rfd_out, |
| 1372 | ecoff_swap_ext_out, |
| 1373 | _bfd_ecoff_swap_tir_out, |
| 1374 | _bfd_ecoff_swap_rndx_out, |
| 1375 | /* Function to read in symbolic data. */ |
| 1376 | _bfd_ecoff_slurp_symbolic_info |
| 1377 | }, |
| 1378 | /* External reloc size. */ |
| 1379 | RELSZ, |
| 1380 | /* Reloc swapping functions. */ |
| 1381 | mips_ecoff_swap_reloc_in, |
| 1382 | mips_ecoff_swap_reloc_out, |
| 1383 | /* Backend reloc tweaking. */ |
| 1384 | mips_adjust_reloc_in, |
| 1385 | mips_adjust_reloc_out, |
| 1386 | /* Relocate section contents while linking. */ |
| 1387 | mips_relocate_section, |
| 1388 | /* Do final adjustments to filehdr and aouthdr. */ |
| 1389 | NULL, |
| 1390 | /* Read an element from an archive at a given file position. */ |
| 1391 | _bfd_get_elt_at_filepos |
| 1392 | }; |
| 1393 | |
| 1394 | /* Looking up a reloc type is MIPS specific. */ |
| 1395 | #define _bfd_ecoff_bfd_reloc_type_lookup mips_bfd_reloc_type_lookup |
| 1396 | #define _bfd_ecoff_bfd_reloc_name_lookup mips_bfd_reloc_name_lookup |
| 1397 | |
| 1398 | /* Getting relocated section contents is generic. */ |
| 1399 | #define _bfd_ecoff_bfd_get_relocated_section_contents \ |
| 1400 | bfd_generic_get_relocated_section_contents |
| 1401 | |
| 1402 | /* Handling file windows is generic. */ |
| 1403 | #define _bfd_ecoff_get_section_contents_in_window \ |
| 1404 | _bfd_generic_get_section_contents_in_window |
| 1405 | |
| 1406 | /* Relaxing sections is MIPS specific. */ |
| 1407 | #define _bfd_ecoff_bfd_relax_section bfd_generic_relax_section |
| 1408 | |
| 1409 | /* GC of sections is not done. */ |
| 1410 | #define _bfd_ecoff_bfd_gc_sections bfd_generic_gc_sections |
| 1411 | |
| 1412 | /* Input section flags is not implemented. */ |
| 1413 | #define _bfd_ecoff_bfd_lookup_section_flags bfd_generic_lookup_section_flags |
| 1414 | |
| 1415 | /* Merging of sections is not done. */ |
| 1416 | #define _bfd_ecoff_bfd_merge_sections bfd_generic_merge_sections |
| 1417 | |
| 1418 | #define _bfd_ecoff_bfd_is_group_section bfd_generic_is_group_section |
| 1419 | #define _bfd_ecoff_bfd_discard_group bfd_generic_discard_group |
| 1420 | #define _bfd_ecoff_section_already_linked \ |
| 1421 | _bfd_coff_section_already_linked |
| 1422 | #define _bfd_ecoff_bfd_define_common_symbol bfd_generic_define_common_symbol |
| 1423 | #define _bfd_ecoff_bfd_link_hide_symbol _bfd_generic_link_hide_symbol |
| 1424 | #define _bfd_ecoff_bfd_define_start_stop bfd_generic_define_start_stop |
| 1425 | #define _bfd_ecoff_set_reloc _bfd_generic_set_reloc |
| 1426 | |
| 1427 | extern const bfd_target mips_ecoff_be_vec; |
| 1428 | |
| 1429 | const bfd_target mips_ecoff_le_vec = |
| 1430 | { |
| 1431 | "ecoff-littlemips", /* name */ |
| 1432 | bfd_target_ecoff_flavour, |
| 1433 | BFD_ENDIAN_LITTLE, /* data byte order is little */ |
| 1434 | BFD_ENDIAN_LITTLE, /* header byte order is little */ |
| 1435 | |
| 1436 | (HAS_RELOC | EXEC_P /* object flags */ |
| 1437 | | HAS_LINENO | HAS_DEBUG |
| 1438 | | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| 1439 | |
| 1440 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), |
| 1441 | 0, /* leading underscore */ |
| 1442 | ' ', /* ar_pad_char */ |
| 1443 | 15, /* ar_max_namelen */ |
| 1444 | 0, /* match priority. */ |
| 1445 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 1446 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 1447 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ |
| 1448 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 1449 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 1450 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ |
| 1451 | |
| 1452 | { /* bfd_check_format */ |
| 1453 | _bfd_dummy_target, |
| 1454 | coff_object_p, |
| 1455 | bfd_generic_archive_p, |
| 1456 | _bfd_dummy_target |
| 1457 | }, |
| 1458 | { /* bfd_set_format */ |
| 1459 | _bfd_bool_bfd_false_error, |
| 1460 | _bfd_ecoff_mkobject, |
| 1461 | _bfd_generic_mkarchive, |
| 1462 | _bfd_bool_bfd_false_error |
| 1463 | }, |
| 1464 | { /* bfd_write_contents */ |
| 1465 | _bfd_bool_bfd_false_error, |
| 1466 | _bfd_ecoff_write_object_contents, |
| 1467 | _bfd_write_archive_contents, |
| 1468 | _bfd_bool_bfd_false_error |
| 1469 | }, |
| 1470 | |
| 1471 | BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), |
| 1472 | BFD_JUMP_TABLE_COPY (_bfd_ecoff), |
| 1473 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 1474 | BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), |
| 1475 | BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), |
| 1476 | BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), |
| 1477 | BFD_JUMP_TABLE_WRITE (_bfd_ecoff), |
| 1478 | BFD_JUMP_TABLE_LINK (_bfd_ecoff), |
| 1479 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 1480 | |
| 1481 | &mips_ecoff_be_vec, |
| 1482 | |
| 1483 | &mips_ecoff_backend_data |
| 1484 | }; |
| 1485 | |
| 1486 | const bfd_target mips_ecoff_be_vec = |
| 1487 | { |
| 1488 | "ecoff-bigmips", /* name */ |
| 1489 | bfd_target_ecoff_flavour, |
| 1490 | BFD_ENDIAN_BIG, /* data byte order is big */ |
| 1491 | BFD_ENDIAN_BIG, /* header byte order is big */ |
| 1492 | |
| 1493 | (HAS_RELOC | EXEC_P /* object flags */ |
| 1494 | | HAS_LINENO | HAS_DEBUG |
| 1495 | | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| 1496 | |
| 1497 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), |
| 1498 | 0, /* leading underscore */ |
| 1499 | ' ', /* ar_pad_char */ |
| 1500 | 15, /* ar_max_namelen */ |
| 1501 | 0, /* match priority. */ |
| 1502 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 1503 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 1504 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, |
| 1505 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 1506 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 1507 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, |
| 1508 | |
| 1509 | { /* bfd_check_format */ |
| 1510 | _bfd_dummy_target, |
| 1511 | coff_object_p, |
| 1512 | bfd_generic_archive_p, |
| 1513 | _bfd_dummy_target |
| 1514 | }, |
| 1515 | { /* bfd_set_format */ |
| 1516 | _bfd_bool_bfd_false_error, |
| 1517 | _bfd_ecoff_mkobject, |
| 1518 | _bfd_generic_mkarchive, |
| 1519 | _bfd_bool_bfd_false_error |
| 1520 | }, |
| 1521 | { /* bfd_write_contents */ |
| 1522 | _bfd_bool_bfd_false_error, |
| 1523 | _bfd_ecoff_write_object_contents, |
| 1524 | _bfd_write_archive_contents, |
| 1525 | _bfd_bool_bfd_false_error |
| 1526 | }, |
| 1527 | |
| 1528 | BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), |
| 1529 | BFD_JUMP_TABLE_COPY (_bfd_ecoff), |
| 1530 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 1531 | BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), |
| 1532 | BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), |
| 1533 | BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), |
| 1534 | BFD_JUMP_TABLE_WRITE (_bfd_ecoff), |
| 1535 | BFD_JUMP_TABLE_LINK (_bfd_ecoff), |
| 1536 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 1537 | |
| 1538 | &mips_ecoff_le_vec, |
| 1539 | |
| 1540 | &mips_ecoff_backend_data |
| 1541 | }; |
| 1542 | |
| 1543 | const bfd_target mips_ecoff_bele_vec = |
| 1544 | { |
| 1545 | "ecoff-biglittlemips", /* name */ |
| 1546 | bfd_target_ecoff_flavour, |
| 1547 | BFD_ENDIAN_LITTLE, /* data byte order is little */ |
| 1548 | BFD_ENDIAN_BIG, /* header byte order is big */ |
| 1549 | |
| 1550 | (HAS_RELOC | EXEC_P /* object flags */ |
| 1551 | | HAS_LINENO | HAS_DEBUG |
| 1552 | | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| 1553 | |
| 1554 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA), |
| 1555 | 0, /* leading underscore */ |
| 1556 | ' ', /* ar_pad_char */ |
| 1557 | 15, /* ar_max_namelen */ |
| 1558 | 0, /* match priority. */ |
| 1559 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 1560 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 1561 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ |
| 1562 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 1563 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 1564 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ |
| 1565 | |
| 1566 | { /* bfd_check_format */ |
| 1567 | _bfd_dummy_target, |
| 1568 | coff_object_p, |
| 1569 | bfd_generic_archive_p, |
| 1570 | _bfd_dummy_target |
| 1571 | }, |
| 1572 | { /* bfd_set_format */ |
| 1573 | _bfd_bool_bfd_false_error, |
| 1574 | _bfd_ecoff_mkobject, |
| 1575 | _bfd_generic_mkarchive, |
| 1576 | _bfd_bool_bfd_false_error |
| 1577 | }, |
| 1578 | { /* bfd_write_contents */ |
| 1579 | _bfd_bool_bfd_false_error, |
| 1580 | _bfd_ecoff_write_object_contents, |
| 1581 | _bfd_write_archive_contents, |
| 1582 | _bfd_bool_bfd_false_error |
| 1583 | }, |
| 1584 | |
| 1585 | BFD_JUMP_TABLE_GENERIC (_bfd_ecoff), |
| 1586 | BFD_JUMP_TABLE_COPY (_bfd_ecoff), |
| 1587 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 1588 | BFD_JUMP_TABLE_ARCHIVE (_bfd_ecoff), |
| 1589 | BFD_JUMP_TABLE_SYMBOLS (_bfd_ecoff), |
| 1590 | BFD_JUMP_TABLE_RELOCS (_bfd_ecoff), |
| 1591 | BFD_JUMP_TABLE_WRITE (_bfd_ecoff), |
| 1592 | BFD_JUMP_TABLE_LINK (_bfd_ecoff), |
| 1593 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 1594 | |
| 1595 | NULL, |
| 1596 | |
| 1597 | &mips_ecoff_backend_data |
| 1598 | }; |