| 1 | /* Freescale XGATE-specific support for 32-bit ELF |
| 2 | Copyright (C) 2010-2019 Free Software Foundation, Inc. |
| 3 | Contributed by Sean Keys(skeys@ipdatasys.com) |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 20 | MA 02110-1301, USA. */ |
| 21 | |
| 22 | #include "sysdep.h" |
| 23 | #include "bfd.h" |
| 24 | #include "bfdlink.h" |
| 25 | #include "libbfd.h" |
| 26 | #include "elf-bfd.h" |
| 27 | #include "elf/xgate.h" |
| 28 | #include "opcode/xgate.h" |
| 29 | #include "libiberty.h" |
| 30 | |
| 31 | /* Forward declarations. */ |
| 32 | static bfd_reloc_status_type xgate_elf_ignore_reloc |
| 33 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 34 | static bfd_reloc_status_type xgate_elf_special_reloc |
| 35 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 36 | |
| 37 | /* Use REL instead of RELA to save space */ |
| 38 | #define USE_REL 1 |
| 39 | |
| 40 | static reloc_howto_type elf_xgate_howto_table[] = |
| 41 | { |
| 42 | /* This reloc does nothing. */ |
| 43 | HOWTO (R_XGATE_NONE, /* type */ |
| 44 | 0, /* rightshift */ |
| 45 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 46 | 0, /* bitsize */ |
| 47 | FALSE, /* pc_relative */ |
| 48 | 0, /* bitpos */ |
| 49 | complain_overflow_dont,/* complain_on_overflow */ |
| 50 | bfd_elf_generic_reloc, /* special_function */ |
| 51 | "R_XGATE_NONE", /* name */ |
| 52 | FALSE, /* partial_inplace */ |
| 53 | 0, /* src_mask */ |
| 54 | 0, /* dst_mask */ |
| 55 | FALSE), /* pcrel_offset */ |
| 56 | |
| 57 | /* A 8 bit absolute relocation. */ |
| 58 | HOWTO (R_XGATE_8, /* type */ |
| 59 | 0, /* rightshift */ |
| 60 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 61 | 8, /* bitsize */ |
| 62 | FALSE, /* pc_relative */ |
| 63 | 0, /* bitpos */ |
| 64 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 65 | bfd_elf_generic_reloc, /* special_function */ |
| 66 | "R_XGATE_8", /* name */ |
| 67 | FALSE, /* partial_inplace */ |
| 68 | 0x00ff, /* src_mask */ |
| 69 | 0x00ff, /* dst_mask */ |
| 70 | FALSE), /* pcrel_offset */ |
| 71 | |
| 72 | /* A 8 bit PC-rel relocation. */ |
| 73 | HOWTO (R_XGATE_PCREL_8, /* type */ |
| 74 | 0, /* rightshift */ |
| 75 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 76 | 8, /* bitsize */ |
| 77 | TRUE, /* pc_relative */ |
| 78 | 0, /* bitpos */ |
| 79 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 80 | bfd_elf_generic_reloc, /* special_function */ |
| 81 | "R_XGATE_PCREL_8", /* name */ |
| 82 | FALSE, /* partial_inplace */ |
| 83 | 0x00ff, /* src_mask */ |
| 84 | 0x00ff, /* dst_mask */ |
| 85 | TRUE), /* pcrel_offset */ |
| 86 | |
| 87 | /* A 16 bit absolute relocation. */ |
| 88 | HOWTO (R_XGATE_16, /* type */ |
| 89 | 0, /* rightshift */ |
| 90 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 91 | 16, /* bitsize */ |
| 92 | FALSE, /* pc_relative */ |
| 93 | 0, /* bitpos */ |
| 94 | complain_overflow_dont /*bitfield */, /* complain_on_overflow */ |
| 95 | bfd_elf_generic_reloc, /* special_function */ |
| 96 | "R_XGATE_16", /* name */ |
| 97 | FALSE, /* partial_inplace */ |
| 98 | 0xffff, /* src_mask */ |
| 99 | 0xffff, /* dst_mask */ |
| 100 | FALSE), /* pcrel_offset */ |
| 101 | |
| 102 | /* A 32 bit absolute relocation. This one is never used for the |
| 103 | code relocation. It's used by gas for -gstabs generation. */ |
| 104 | HOWTO (R_XGATE_32, /* type */ |
| 105 | 0, /* rightshift */ |
| 106 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 107 | 32, /* bitsize */ |
| 108 | FALSE, /* pc_relative */ |
| 109 | 0, /* bitpos */ |
| 110 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 111 | bfd_elf_generic_reloc, /* special_function */ |
| 112 | "R_XGATE_32", /* name */ |
| 113 | FALSE, /* partial_inplace */ |
| 114 | 0xffffffff, /* src_mask */ |
| 115 | 0xffffffff, /* dst_mask */ |
| 116 | FALSE), /* pcrel_offset */ |
| 117 | |
| 118 | /* A 16 bit PC-rel relocation. */ |
| 119 | HOWTO (R_XGATE_PCREL_16, /* type */ |
| 120 | 0, /* rightshift */ |
| 121 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 122 | 16, /* bitsize */ |
| 123 | TRUE, /* pc_relative */ |
| 124 | 0, /* bitpos */ |
| 125 | complain_overflow_dont, /* complain_on_overflow */ |
| 126 | bfd_elf_generic_reloc, /* special_function */ |
| 127 | "R_XGATE_PCREL_16", /* name */ |
| 128 | FALSE, /* partial_inplace */ |
| 129 | 0xffff, /* src_mask */ |
| 130 | 0xffff, /* dst_mask */ |
| 131 | TRUE), /* pcrel_offset */ |
| 132 | |
| 133 | /* GNU extension to record C++ vtable hierarchy. */ |
| 134 | HOWTO (R_XGATE_GNU_VTINHERIT, /* type */ |
| 135 | 0, /* rightshift */ |
| 136 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 137 | 0, /* bitsize */ |
| 138 | FALSE, /* pc_relative */ |
| 139 | 0, /* bitpos */ |
| 140 | complain_overflow_dont, /* complain_on_overflow */ |
| 141 | NULL, /* special_function */ |
| 142 | "R_XGATE_GNU_VTINHERIT", /* name */ |
| 143 | FALSE, /* partial_inplace */ |
| 144 | 0, /* src_mask */ |
| 145 | 0, /* dst_mask */ |
| 146 | FALSE), /* pcrel_offset */ |
| 147 | |
| 148 | /* GNU extension to record C++ vtable member usage. */ |
| 149 | HOWTO (R_XGATE_GNU_VTENTRY, /* type */ |
| 150 | 0, /* rightshift */ |
| 151 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 152 | 0, /* bitsize */ |
| 153 | FALSE, /* pc_relative */ |
| 154 | 0, /* bitpos */ |
| 155 | complain_overflow_dont, /* complain_on_overflow */ |
| 156 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
| 157 | "R_XGATE_GNU_VTENTRY", /* name */ |
| 158 | FALSE, /* partial_inplace */ |
| 159 | 0, /* src_mask */ |
| 160 | 0, /* dst_mask */ |
| 161 | FALSE), /* pcrel_offset */ |
| 162 | |
| 163 | /* A 24 bit relocation. */ |
| 164 | HOWTO (R_XGATE_24, /* type */ |
| 165 | 0, /* rightshift */ |
| 166 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 167 | 16, /* bitsize */ |
| 168 | FALSE, /* pc_relative */ |
| 169 | 0, /* bitpos */ |
| 170 | complain_overflow_dont, /* complain_on_overflow */ |
| 171 | bfd_elf_generic_reloc, /* special_function */ |
| 172 | "R_XGATE_IMM8_LO", /* name */ |
| 173 | FALSE, /* partial_inplace */ |
| 174 | 0x00ff, /* src_mask */ |
| 175 | 0x00ff, /* dst_mask */ |
| 176 | FALSE), /* pcrel_offset */ |
| 177 | |
| 178 | /* A 16-bit low relocation. */ |
| 179 | HOWTO (R_XGATE_LO16, /* type */ |
| 180 | 8, /* rightshift */ |
| 181 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 182 | 16, /* bitsize */ |
| 183 | FALSE, /* pc_relative */ |
| 184 | 0, /* bitpos */ |
| 185 | complain_overflow_dont, /* complain_on_overflow */ |
| 186 | bfd_elf_generic_reloc, /* special_function */ |
| 187 | "R_XGATE_IMM8_HI", /* name */ |
| 188 | FALSE, /* partial_inplace */ |
| 189 | 0x00ff, /* src_mask */ |
| 190 | 0x00ff, /* dst_mask */ |
| 191 | FALSE), /* pcrel_offset */ |
| 192 | |
| 193 | /* A page relocation. */ |
| 194 | HOWTO (R_XGATE_GPAGE, /* type */ |
| 195 | 0, /* rightshift */ |
| 196 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 197 | 8, /* bitsize */ |
| 198 | FALSE, /* pc_relative */ |
| 199 | 0, /* bitpos */ |
| 200 | complain_overflow_dont, /* complain_on_overflow */ |
| 201 | xgate_elf_special_reloc,/* special_function */ |
| 202 | "R_XGATE_GPAGE", /* name */ |
| 203 | FALSE, /* partial_inplace */ |
| 204 | 0x00ff, /* src_mask */ |
| 205 | 0x00ff, /* dst_mask */ |
| 206 | FALSE), /* pcrel_offset */ |
| 207 | |
| 208 | /* A 9 bit absolute relocation. */ |
| 209 | HOWTO (R_XGATE_PCREL_9, /* type */ |
| 210 | 0, /* rightshift */ |
| 211 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 212 | 9, /* bitsize */ |
| 213 | TRUE, /* pc_relative */ |
| 214 | 0, /* bitpos */ |
| 215 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 216 | bfd_elf_generic_reloc, /* special_function */ |
| 217 | "R_XGATE_PCREL_9", /* name */ |
| 218 | FALSE, /* partial_inplace */ |
| 219 | 0xffff, /* src_mask */ |
| 220 | 0xffff, /* dst_mask */ |
| 221 | TRUE), /* pcrel_offset */ |
| 222 | |
| 223 | /* A 8 bit absolute relocation (upper address). */ |
| 224 | HOWTO (R_XGATE_PCREL_10, /* type */ |
| 225 | 8, /* rightshift */ |
| 226 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 227 | 10, /* bitsize */ |
| 228 | TRUE, /* pc_relative */ |
| 229 | 0, /* bitpos */ |
| 230 | complain_overflow_dont, /* complain_on_overflow */ |
| 231 | bfd_elf_generic_reloc, /* special_function */ |
| 232 | "R_XGATE_PCREL_10", /* name */ |
| 233 | FALSE, /* partial_inplace */ |
| 234 | 0x00ff, /* src_mask */ |
| 235 | 0x00ff, /* dst_mask */ |
| 236 | TRUE), /* pcrel_offset */ |
| 237 | |
| 238 | /* A 8 bit absolute relocation. */ |
| 239 | HOWTO (R_XGATE_IMM8_LO, /* type */ |
| 240 | 0, /* rightshift */ |
| 241 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 242 | 16, /* bitsize */ |
| 243 | FALSE, /* pc_relative */ |
| 244 | 0, /* bitpos */ |
| 245 | complain_overflow_dont, /* complain_on_overflow */ |
| 246 | bfd_elf_generic_reloc, /* special_function */ |
| 247 | "R_XGATE_IMM8_LO", /* name */ |
| 248 | FALSE, /* partial_inplace */ |
| 249 | 0xffff, /* src_mask */ |
| 250 | 0xffff, /* dst_mask */ |
| 251 | FALSE), /* pcrel_offset */ |
| 252 | |
| 253 | /* A 16 bit absolute relocation (upper address). */ |
| 254 | HOWTO (R_XGATE_IMM8_HI, /* type */ |
| 255 | 8, /* rightshift */ |
| 256 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 257 | 16, /* bitsize */ |
| 258 | FALSE, /* pc_relative */ |
| 259 | 0, /* bitpos */ |
| 260 | complain_overflow_dont, /* complain_on_overflow */ |
| 261 | bfd_elf_generic_reloc, /* special_function */ |
| 262 | "R_XGATE_IMM8_HI", /* name */ |
| 263 | FALSE, /* partial_inplace */ |
| 264 | 0x00ff, /* src_mask */ |
| 265 | 0x00ff, /* dst_mask */ |
| 266 | FALSE), /* pcrel_offset */ |
| 267 | |
| 268 | /* A 3 bit absolute relocation. */ |
| 269 | HOWTO (R_XGATE_IMM3, /* type */ |
| 270 | 8, /* rightshift */ |
| 271 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 272 | 16, /* bitsize */ |
| 273 | FALSE, /* pc_relative */ |
| 274 | 0, /* bitpos */ |
| 275 | complain_overflow_dont, /* complain_on_overflow */ |
| 276 | bfd_elf_generic_reloc, /* special_function */ |
| 277 | "R_XGATE_IMM3", /* name */ |
| 278 | FALSE, /* partial_inplace */ |
| 279 | 0x00ff, /* src_mask */ |
| 280 | 0x00ff, /* dst_mask */ |
| 281 | FALSE), /* pcrel_offset */ |
| 282 | |
| 283 | /* A 4 bit absolute relocation. */ |
| 284 | HOWTO (R_XGATE_IMM4, /* type */ |
| 285 | 8, /* rightshift */ |
| 286 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 287 | 16, /* bitsize */ |
| 288 | FALSE, /* pc_relative */ |
| 289 | 0, /* bitpos */ |
| 290 | complain_overflow_dont, /* complain_on_overflow */ |
| 291 | bfd_elf_generic_reloc, /* special_function */ |
| 292 | "R_XGATE_IMM4", /* name */ |
| 293 | FALSE, /* partial_inplace */ |
| 294 | 0x00ff, /* src_mask */ |
| 295 | 0x00ff, /* dst_mask */ |
| 296 | FALSE), /* pcrel_offset */ |
| 297 | |
| 298 | /* A 5 bit absolute relocation. */ |
| 299 | HOWTO (R_XGATE_IMM5, /* type */ |
| 300 | 8, /* rightshift */ |
| 301 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 302 | 16, /* bitsize */ |
| 303 | FALSE, /* pc_relative */ |
| 304 | 0, /* bitpos */ |
| 305 | complain_overflow_dont, /* complain_on_overflow */ |
| 306 | bfd_elf_generic_reloc, /* special_function */ |
| 307 | "R_XGATE_IMM5", /* name */ |
| 308 | FALSE, /* partial_inplace */ |
| 309 | 0x00ff, /* src_mask */ |
| 310 | 0x00ff, /* dst_mask */ |
| 311 | FALSE), /* pcrel_offset */ |
| 312 | |
| 313 | /* Mark beginning of a jump instruction (any form). */ |
| 314 | HOWTO (R_XGATE_RL_JUMP, /* type */ |
| 315 | 0, /* rightshift */ |
| 316 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 317 | 0, /* bitsize */ |
| 318 | FALSE, /* pc_relative */ |
| 319 | 0, /* bitpos */ |
| 320 | complain_overflow_dont, /* complain_on_overflow */ |
| 321 | xgate_elf_ignore_reloc, /* special_function */ |
| 322 | "R_XGATE_RL_JUMP", /* name */ |
| 323 | TRUE, /* partial_inplace */ |
| 324 | 0, /* src_mask */ |
| 325 | 0, /* dst_mask */ |
| 326 | TRUE), /* pcrel_offset */ |
| 327 | |
| 328 | /* Mark beginning of Gcc relaxation group instruction. */ |
| 329 | HOWTO (R_XGATE_RL_GROUP, /* type */ |
| 330 | 0, /* rightshift */ |
| 331 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 332 | 0, /* bitsize */ |
| 333 | FALSE, /* pc_relative */ |
| 334 | 0, /* bitpos */ |
| 335 | complain_overflow_dont, /* complain_on_overflow */ |
| 336 | xgate_elf_ignore_reloc, /* special_function */ |
| 337 | "R_XGATE_RL_GROUP", /* name */ |
| 338 | TRUE, /* partial_inplace */ |
| 339 | 0, /* src_mask */ |
| 340 | 0, /* dst_mask */ |
| 341 | TRUE), /* pcrel_offset */ |
| 342 | }; |
| 343 | |
| 344 | /* Map BFD reloc types to XGATE ELF reloc types. */ |
| 345 | |
| 346 | struct xgate_reloc_map |
| 347 | { |
| 348 | bfd_reloc_code_real_type bfd_reloc_val; |
| 349 | unsigned char elf_reloc_val; |
| 350 | }; |
| 351 | |
| 352 | static const struct xgate_reloc_map xgate_reloc_map[] = |
| 353 | { |
| 354 | {BFD_RELOC_NONE, R_XGATE_NONE}, |
| 355 | {BFD_RELOC_8, R_XGATE_8}, |
| 356 | {BFD_RELOC_8_PCREL, R_XGATE_PCREL_8}, |
| 357 | {BFD_RELOC_16_PCREL, R_XGATE_PCREL_16}, |
| 358 | {BFD_RELOC_16, R_XGATE_16}, |
| 359 | {BFD_RELOC_32, R_XGATE_32}, |
| 360 | |
| 361 | {BFD_RELOC_VTABLE_INHERIT, R_XGATE_GNU_VTINHERIT}, |
| 362 | {BFD_RELOC_VTABLE_ENTRY, R_XGATE_GNU_VTENTRY}, |
| 363 | |
| 364 | {BFD_RELOC_XGATE_LO16, R_XGATE_LO16}, |
| 365 | {BFD_RELOC_XGATE_GPAGE, R_XGATE_GPAGE}, |
| 366 | {BFD_RELOC_XGATE_24, R_XGATE_24}, |
| 367 | {BFD_RELOC_XGATE_PCREL_9, R_XGATE_PCREL_9}, |
| 368 | {BFD_RELOC_XGATE_PCREL_10, R_XGATE_PCREL_10}, |
| 369 | {BFD_RELOC_XGATE_IMM8_LO, R_XGATE_IMM8_LO}, |
| 370 | {BFD_RELOC_XGATE_IMM8_HI, R_XGATE_IMM8_HI}, |
| 371 | {BFD_RELOC_XGATE_IMM3, R_XGATE_IMM3}, |
| 372 | {BFD_RELOC_XGATE_IMM4, R_XGATE_IMM4}, |
| 373 | {BFD_RELOC_XGATE_IMM5, R_XGATE_IMM5}, |
| 374 | |
| 375 | {BFD_RELOC_XGATE_RL_JUMP, R_XGATE_RL_JUMP}, |
| 376 | {BFD_RELOC_XGATE_RL_GROUP, R_XGATE_RL_GROUP}, |
| 377 | }; |
| 378 | |
| 379 | static reloc_howto_type * |
| 380 | bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 381 | bfd_reloc_code_real_type code) |
| 382 | { |
| 383 | unsigned int i; |
| 384 | |
| 385 | for (i = 0; i < ARRAY_SIZE (xgate_reloc_map); i++) |
| 386 | if (xgate_reloc_map[i].bfd_reloc_val == code) |
| 387 | return &elf_xgate_howto_table[xgate_reloc_map[i].elf_reloc_val]; |
| 388 | |
| 389 | return NULL; |
| 390 | } |
| 391 | |
| 392 | static reloc_howto_type * |
| 393 | bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) |
| 394 | { |
| 395 | unsigned int i; |
| 396 | |
| 397 | for (i = 0; i < ARRAY_SIZE (elf_xgate_howto_table); i++) |
| 398 | if (elf_xgate_howto_table[i].name != NULL |
| 399 | && strcasecmp (elf_xgate_howto_table[i].name, r_name) == 0) |
| 400 | return &elf_xgate_howto_table[i]; |
| 401 | |
| 402 | return NULL; |
| 403 | } |
| 404 | |
| 405 | /* Set the howto pointer for an XGATE ELF reloc. */ |
| 406 | |
| 407 | static bfd_boolean |
| 408 | xgate_info_to_howto_rel (bfd *abfd, |
| 409 | arelent *cache_ptr, |
| 410 | Elf_Internal_Rela *dst) |
| 411 | { |
| 412 | unsigned int r_type; |
| 413 | |
| 414 | r_type = ELF32_R_TYPE (dst->r_info); |
| 415 | if (r_type >= (unsigned int) R_XGATE_max) |
| 416 | { |
| 417 | /* xgettext:c-format */ |
| 418 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
| 419 | abfd, r_type); |
| 420 | bfd_set_error (bfd_error_bad_value); |
| 421 | return FALSE; |
| 422 | } |
| 423 | cache_ptr->howto = &elf_xgate_howto_table[r_type]; |
| 424 | return TRUE; |
| 425 | } |
| 426 | |
| 427 | /* Specific sections: |
| 428 | - The .page0 is a data section that is mapped in [0x0000..0x00FF]. |
| 429 | Page0 accesses are faster on the M68HC12. |
| 430 | - The .vectors is the section that represents the interrupt |
| 431 | vectors. |
| 432 | - The .xgate section is starts in 0xE08800 or as xgate sees it 0x0800. */ |
| 433 | static const struct bfd_elf_special_section elf32_xgate_special_sections[] = |
| 434 | { |
| 435 | { STRING_COMMA_LEN (".eeprom"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 436 | { STRING_COMMA_LEN (".page0"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 437 | { STRING_COMMA_LEN (".softregs"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
| 438 | { STRING_COMMA_LEN (".vectors"), 0, SHT_PROGBITS, SHF_ALLOC }, |
| 439 | /*{ STRING_COMMA_LEN (".xgate"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 440 | TODO finish this implementation */ |
| 441 | { NULL, 0, 0, 0, 0 } |
| 442 | }; |
| 443 | |
| 444 | /* Hook called when reading symbols. */ |
| 445 | |
| 446 | static void |
| 447 | elf32_xgate_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, |
| 448 | asymbol *sym) |
| 449 | { |
| 450 | /* Mark xgate symbols. */ |
| 451 | ((elf_symbol_type *) sym)->internal_elf_sym.st_target_internal = 1; |
| 452 | } |
| 453 | |
| 454 | /* This function is used for relocs which are only used for relaxing, |
| 455 | which the linker should otherwise ignore. */ |
| 456 | |
| 457 | static bfd_reloc_status_type |
| 458 | xgate_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| 459 | arelent *reloc_entry, |
| 460 | asymbol *symbol ATTRIBUTE_UNUSED, |
| 461 | void *data ATTRIBUTE_UNUSED, |
| 462 | asection *input_section, |
| 463 | bfd *output_bfd, |
| 464 | char **error_message ATTRIBUTE_UNUSED) |
| 465 | { |
| 466 | if (output_bfd != NULL) |
| 467 | reloc_entry->address += input_section->output_offset; |
| 468 | return bfd_reloc_ok; |
| 469 | } |
| 470 | |
| 471 | static bfd_reloc_status_type |
| 472 | xgate_elf_special_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| 473 | arelent *reloc_entry ATTRIBUTE_UNUSED, |
| 474 | asymbol *symbol ATTRIBUTE_UNUSED, |
| 475 | void *data ATTRIBUTE_UNUSED, |
| 476 | asection *input_section ATTRIBUTE_UNUSED, |
| 477 | bfd *output_bfd ATTRIBUTE_UNUSED, |
| 478 | char **error_message ATTRIBUTE_UNUSED) |
| 479 | { |
| 480 | abort (); |
| 481 | } |
| 482 | |
| 483 | static bfd_boolean |
| 484 | _bfd_xgate_elf_print_private_bfd_data (bfd *abfd, void *ptr) |
| 485 | { |
| 486 | FILE *file = (FILE *) ptr; |
| 487 | |
| 488 | BFD_ASSERT (abfd != NULL && ptr != NULL); |
| 489 | |
| 490 | /* Print normal ELF private data. */ |
| 491 | _bfd_elf_print_private_bfd_data (abfd, ptr); |
| 492 | |
| 493 | /* xgettext:c-format */ |
| 494 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); |
| 495 | |
| 496 | if (elf_elfheader (abfd)->e_flags & E_XGATE_I32) |
| 497 | fprintf (file, _("[abi=32-bit int, ")); |
| 498 | else |
| 499 | fprintf (file, _("[abi=16-bit int, ")); |
| 500 | |
| 501 | if (elf_elfheader (abfd)->e_flags & E_XGATE_F64) |
| 502 | fprintf (file, _("64-bit double, ")); |
| 503 | else |
| 504 | fprintf (file, _("32-bit double, ")); |
| 505 | if (elf_elfheader (abfd)->e_flags & EF_XGATE_MACH) |
| 506 | fprintf (file, _("cpu=XGATE]")); |
| 507 | else |
| 508 | fprintf (file, _("error reading cpu type from elf private data")); |
| 509 | fputc ('\n', file); |
| 510 | |
| 511 | return TRUE; |
| 512 | } |
| 513 | |
| 514 | #define ELF_ARCH bfd_arch_xgate |
| 515 | #define ELF_MACHINE_CODE EM_XGATE |
| 516 | |
| 517 | #define ELF_MAXPAGESIZE 0x1000 |
| 518 | |
| 519 | #define TARGET_BIG_SYM xgate_elf32_vec |
| 520 | #define TARGET_BIG_NAME "elf32-xgate" |
| 521 | |
| 522 | #define elf_info_to_howto_rel xgate_info_to_howto_rel |
| 523 | #define elf_backend_special_sections elf32_xgate_special_sections |
| 524 | #define elf_backend_symbol_processing elf32_xgate_backend_symbol_processing |
| 525 | #define bfd_elf32_bfd_print_private_bfd_data _bfd_xgate_elf_print_private_bfd_data |
| 526 | |
| 527 | #include "elf32-target.h" |