| 1 | /* M32R-specific support for 32-bit ELF. |
| 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | #include "bfd.h" |
| 22 | #include "sysdep.h" |
| 23 | #include "libbfd.h" |
| 24 | #include "elf-bfd.h" |
| 25 | #include "elf/m32r.h" |
| 26 | |
| 27 | static bfd_reloc_status_type m32r_elf_10_pcrel_reloc |
| 28 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 29 | static bfd_reloc_status_type m32r_elf_do_10_pcrel_reloc |
| 30 | PARAMS ((bfd *, reloc_howto_type *, asection *, |
| 31 | bfd_byte *, bfd_vma, asection *, bfd_vma, bfd_vma)); |
| 32 | static bfd_reloc_status_type m32r_elf_hi16_reloc |
| 33 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 34 | static void m32r_elf_relocate_hi16 |
| 35 | PARAMS ((bfd *, int, Elf_Internal_Rela *, Elf_Internal_Rela *, |
| 36 | bfd_byte *, bfd_vma)); |
| 37 | bfd_reloc_status_type m32r_elf_lo16_reloc |
| 38 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 39 | bfd_reloc_status_type m32r_elf_generic_reloc |
| 40 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 41 | static bfd_reloc_status_type m32r_elf_sda16_reloc |
| 42 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 43 | static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup |
| 44 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); |
| 45 | static void m32r_info_to_howto_rel |
| 46 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
| 47 | static void m32r_info_to_howto |
| 48 | PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); |
| 49 | bfd_boolean _bfd_m32r_elf_section_from_bfd_section |
| 50 | PARAMS ((bfd *, asection *, int *)); |
| 51 | void _bfd_m32r_elf_symbol_processing |
| 52 | PARAMS ((bfd *, asymbol *)); |
| 53 | static bfd_boolean m32r_elf_add_symbol_hook |
| 54 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Sym *, |
| 55 | const char **, flagword *, asection **, bfd_vma *)); |
| 56 | static bfd_boolean m32r_elf_relocate_section |
| 57 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| 58 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); |
| 59 | #if 0 /* not yet */ |
| 60 | static bfd_boolean m32r_elf_relax_delete_bytes |
| 61 | PARAMS ((bfd *, asection *, bfd_vma, int)); |
| 62 | #endif |
| 63 | static bfd_reloc_status_type m32r_elf_final_sda_base |
| 64 | PARAMS ((bfd *, struct bfd_link_info *, const char **, bfd_vma *)); |
| 65 | static bfd_boolean m32r_elf_object_p |
| 66 | PARAMS ((bfd *)); |
| 67 | static void m32r_elf_final_write_processing |
| 68 | PARAMS ((bfd *, bfd_boolean)); |
| 69 | static bfd_boolean m32r_elf_set_private_flags |
| 70 | PARAMS ((bfd *, flagword)); |
| 71 | static bfd_boolean m32r_elf_merge_private_bfd_data |
| 72 | PARAMS ((bfd *, bfd *)); |
| 73 | static bfd_boolean m32r_elf_print_private_bfd_data |
| 74 | PARAMS ((bfd *, PTR)); |
| 75 | static bfd_boolean m32r_elf_gc_sweep_hook |
| 76 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
| 77 | const Elf_Internal_Rela *)); |
| 78 | static bfd_boolean m32r_elf_check_relocs |
| 79 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
| 80 | const Elf_Internal_Rela *)); |
| 81 | |
| 82 | static bfd_boolean m32r_elf_adjust_dynamic_symbol |
| 83 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
| 84 | static bfd_boolean m32r_elf_size_dynamic_sections |
| 85 | PARAMS ((bfd *, struct bfd_link_info *)); |
| 86 | |
| 87 | asection * m32r_elf_gc_mark_hook |
| 88 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
| 89 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
| 90 | |
| 91 | static bfd_boolean m32r_elf_create_dynamic_sections |
| 92 | PARAMS ((bfd *, struct bfd_link_info *)); |
| 93 | |
| 94 | static bfd_boolean m32r_elf_finish_dynamic_sections |
| 95 | PARAMS ((bfd *, struct bfd_link_info *)); |
| 96 | |
| 97 | static bfd_boolean m32r_elf_finish_dynamic_symbol |
| 98 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
| 99 | Elf_Internal_Sym *)); |
| 100 | |
| 101 | static bfd_boolean allocate_dynrelocs |
| 102 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
| 103 | static bfd_boolean readonly_dynrelocs |
| 104 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
| 105 | static enum elf_reloc_type_class m32r_elf_reloc_type_class |
| 106 | PARAMS ((const Elf_Internal_Rela *)); |
| 107 | static bfd_boolean m32r_elf_fake_sections |
| 108 | PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); |
| 109 | |
| 110 | #define NOP_INSN 0x7000 |
| 111 | #define MAKE_PARALLEL(insn) ((insn) | 0x8000) |
| 112 | |
| 113 | /* Use REL instead of RELA to save space. |
| 114 | This only saves space in libraries and object files, but perhaps |
| 115 | relocs will be put in ROM? All in all though, REL relocs are a pain |
| 116 | to work with. */ |
| 117 | /* #define USE_REL 1 |
| 118 | |
| 119 | #ifndef USE_REL |
| 120 | #define USE_REL 0 |
| 121 | #endif */ |
| 122 | /* Use RELA. But use REL to link old objects for backwords compatibility. */ |
| 123 | |
| 124 | /* Functions for the M32R ELF linker. */ |
| 125 | |
| 126 | /* The name of the dynamic interpreter. This is put in the .interp |
| 127 | section. */ |
| 128 | |
| 129 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" |
| 130 | |
| 131 | /* The nop opcode we use. */ |
| 132 | |
| 133 | #define M32R_NOP 0x7000f000 |
| 134 | |
| 135 | #define PLT_EMPTY 0x10101010 /* RIE -> RIE */ |
| 136 | |
| 137 | /* The size in bytes of an entry in the procedure linkage table. */ |
| 138 | |
| 139 | #define PLT_ENTRY_SIZE 20 |
| 140 | #define PLT_HEADER_SIZE 20 |
| 141 | |
| 142 | /* The first one entries in a procedure linkage table are reserved, |
| 143 | and the initial contents are unimportant (we zero them out). |
| 144 | Subsequent entries look like this. */ |
| 145 | |
| 146 | #define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */ |
| 147 | #define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */ |
| 148 | #define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */ |
| 149 | #define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */ |
| 150 | #define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */ |
| 151 | |
| 152 | #define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */ |
| 153 | #define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */ |
| 154 | #define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */ |
| 155 | #define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */ |
| 156 | #define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */ |
| 157 | |
| 158 | #define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */ |
| 159 | #define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */ |
| 160 | #define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */ |
| 161 | #define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */ |
| 162 | #define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */ |
| 163 | #define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */ |
| 164 | #define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */ |
| 165 | |
| 166 | |
| 167 | static reloc_howto_type m32r_elf_howto_table[] = |
| 168 | { |
| 169 | /* This reloc does nothing. */ |
| 170 | HOWTO (R_M32R_NONE, /* type */ |
| 171 | 0, /* rightshift */ |
| 172 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 173 | 32, /* bitsize */ |
| 174 | FALSE, /* pc_relative */ |
| 175 | 0, /* bitpos */ |
| 176 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 177 | bfd_elf_generic_reloc, /* special_function */ |
| 178 | "R_M32R_NONE", /* name */ |
| 179 | FALSE, /* partial_inplace */ |
| 180 | 0, /* src_mask */ |
| 181 | 0, /* dst_mask */ |
| 182 | FALSE), /* pcrel_offset */ |
| 183 | |
| 184 | /* A 16 bit absolute relocation. */ |
| 185 | HOWTO (R_M32R_16, /* type */ |
| 186 | 0, /* rightshift */ |
| 187 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 188 | 16, /* bitsize */ |
| 189 | FALSE, /* pc_relative */ |
| 190 | 0, /* bitpos */ |
| 191 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 192 | m32r_elf_generic_reloc,/* special_function */ |
| 193 | "R_M32R_16", /* name */ |
| 194 | TRUE, /* partial_inplace */ |
| 195 | 0xffff, /* src_mask */ |
| 196 | 0xffff, /* dst_mask */ |
| 197 | FALSE), /* pcrel_offset */ |
| 198 | |
| 199 | /* A 32 bit absolute relocation. */ |
| 200 | HOWTO (R_M32R_32, /* type */ |
| 201 | 0, /* rightshift */ |
| 202 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 203 | 32, /* bitsize */ |
| 204 | FALSE, /* pc_relative */ |
| 205 | 0, /* bitpos */ |
| 206 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 207 | m32r_elf_generic_reloc,/* special_function */ |
| 208 | "R_M32R_32", /* name */ |
| 209 | TRUE, /* partial_inplace */ |
| 210 | 0xffffffff, /* src_mask */ |
| 211 | 0xffffffff, /* dst_mask */ |
| 212 | FALSE), /* pcrel_offset */ |
| 213 | |
| 214 | /* A 24 bit address. */ |
| 215 | HOWTO (R_M32R_24, /* type */ |
| 216 | 0, /* rightshift */ |
| 217 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 218 | 24, /* bitsize */ |
| 219 | FALSE, /* pc_relative */ |
| 220 | 0, /* bitpos */ |
| 221 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 222 | m32r_elf_generic_reloc,/* special_function */ |
| 223 | "R_M32R_24", /* name */ |
| 224 | TRUE, /* partial_inplace */ |
| 225 | 0xffffff, /* src_mask */ |
| 226 | 0xffffff, /* dst_mask */ |
| 227 | FALSE), /* pcrel_offset */ |
| 228 | |
| 229 | /* An PC Relative 10-bit relocation, shifted by 2. |
| 230 | This reloc is complicated because relocations are relative to pc & -4. |
| 231 | i.e. branches in the right insn slot use the address of the left insn |
| 232 | slot for pc. */ |
| 233 | /* ??? It's not clear whether this should have partial_inplace set or not. |
| 234 | Branch relaxing in the assembler can store the addend in the insn, |
| 235 | and if bfd_install_relocation gets called the addend may get added |
| 236 | again. */ |
| 237 | HOWTO (R_M32R_10_PCREL, /* type */ |
| 238 | 2, /* rightshift */ |
| 239 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 240 | 10, /* bitsize */ |
| 241 | TRUE, /* pc_relative */ |
| 242 | 0, /* bitpos */ |
| 243 | complain_overflow_signed, /* complain_on_overflow */ |
| 244 | m32r_elf_10_pcrel_reloc, /* special_function */ |
| 245 | "R_M32R_10_PCREL", /* name */ |
| 246 | FALSE, /* partial_inplace */ |
| 247 | 0xff, /* src_mask */ |
| 248 | 0xff, /* dst_mask */ |
| 249 | TRUE), /* pcrel_offset */ |
| 250 | |
| 251 | /* A relative 18 bit relocation, right shifted by 2. */ |
| 252 | HOWTO (R_M32R_18_PCREL, /* type */ |
| 253 | 2, /* rightshift */ |
| 254 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 255 | 16, /* bitsize */ |
| 256 | TRUE, /* pc_relative */ |
| 257 | 0, /* bitpos */ |
| 258 | complain_overflow_signed, /* complain_on_overflow */ |
| 259 | bfd_elf_generic_reloc, /* special_function */ |
| 260 | "R_M32R_18_PCREL", /* name */ |
| 261 | FALSE, /* partial_inplace */ |
| 262 | 0xffff, /* src_mask */ |
| 263 | 0xffff, /* dst_mask */ |
| 264 | TRUE), /* pcrel_offset */ |
| 265 | |
| 266 | /* A relative 26 bit relocation, right shifted by 2. */ |
| 267 | /* ??? It's not clear whether this should have partial_inplace set or not. |
| 268 | Branch relaxing in the assembler can store the addend in the insn, |
| 269 | and if bfd_install_relocation gets called the addend may get added |
| 270 | again. */ |
| 271 | HOWTO (R_M32R_26_PCREL, /* type */ |
| 272 | 2, /* rightshift */ |
| 273 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 274 | 26, /* bitsize */ |
| 275 | TRUE, /* pc_relative */ |
| 276 | 0, /* bitpos */ |
| 277 | complain_overflow_signed, /* complain_on_overflow */ |
| 278 | bfd_elf_generic_reloc, /* special_function */ |
| 279 | "R_M32R_26_PCREL", /* name */ |
| 280 | FALSE, /* partial_inplace */ |
| 281 | 0xffffff, /* src_mask */ |
| 282 | 0xffffff, /* dst_mask */ |
| 283 | TRUE), /* pcrel_offset */ |
| 284 | |
| 285 | /* High 16 bits of address when lower 16 is or'd in. */ |
| 286 | HOWTO (R_M32R_HI16_ULO, /* type */ |
| 287 | 16, /* rightshift */ |
| 288 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 289 | 16, /* bitsize */ |
| 290 | FALSE, /* pc_relative */ |
| 291 | 0, /* bitpos */ |
| 292 | complain_overflow_dont, /* complain_on_overflow */ |
| 293 | m32r_elf_hi16_reloc, /* special_function */ |
| 294 | "R_M32R_HI16_ULO", /* name */ |
| 295 | TRUE, /* partial_inplace */ |
| 296 | 0x0000ffff, /* src_mask */ |
| 297 | 0x0000ffff, /* dst_mask */ |
| 298 | FALSE), /* pcrel_offset */ |
| 299 | |
| 300 | /* High 16 bits of address when lower 16 is added in. */ |
| 301 | HOWTO (R_M32R_HI16_SLO, /* type */ |
| 302 | 16, /* rightshift */ |
| 303 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 304 | 16, /* bitsize */ |
| 305 | FALSE, /* pc_relative */ |
| 306 | 0, /* bitpos */ |
| 307 | complain_overflow_dont, /* complain_on_overflow */ |
| 308 | m32r_elf_hi16_reloc, /* special_function */ |
| 309 | "R_M32R_HI16_SLO", /* name */ |
| 310 | TRUE, /* partial_inplace */ |
| 311 | 0x0000ffff, /* src_mask */ |
| 312 | 0x0000ffff, /* dst_mask */ |
| 313 | FALSE), /* pcrel_offset */ |
| 314 | |
| 315 | /* Lower 16 bits of address. */ |
| 316 | HOWTO (R_M32R_LO16, /* type */ |
| 317 | 0, /* rightshift */ |
| 318 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 319 | 16, /* bitsize */ |
| 320 | FALSE, /* pc_relative */ |
| 321 | 0, /* bitpos */ |
| 322 | complain_overflow_dont, /* complain_on_overflow */ |
| 323 | m32r_elf_lo16_reloc, /* special_function */ |
| 324 | "R_M32R_LO16", /* name */ |
| 325 | TRUE, /* partial_inplace */ |
| 326 | 0x0000ffff, /* src_mask */ |
| 327 | 0x0000ffff, /* dst_mask */ |
| 328 | FALSE), /* pcrel_offset */ |
| 329 | |
| 330 | /* Small data area 16 bits offset. */ |
| 331 | HOWTO (R_M32R_SDA16, /* type */ |
| 332 | 0, /* rightshift */ |
| 333 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 334 | 16, /* bitsize */ |
| 335 | FALSE, /* pc_relative */ |
| 336 | 0, /* bitpos */ |
| 337 | complain_overflow_signed, /* complain_on_overflow */ |
| 338 | m32r_elf_sda16_reloc, /* special_function */ |
| 339 | "R_M32R_SDA16", /* name */ |
| 340 | TRUE, /* partial_inplace */ /* FIXME: correct? */ |
| 341 | 0x0000ffff, /* src_mask */ |
| 342 | 0x0000ffff, /* dst_mask */ |
| 343 | FALSE), /* pcrel_offset */ |
| 344 | |
| 345 | /* GNU extension to record C++ vtable hierarchy */ |
| 346 | HOWTO (R_M32R_GNU_VTINHERIT, /* type */ |
| 347 | 0, /* rightshift */ |
| 348 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 349 | 0, /* bitsize */ |
| 350 | FALSE, /* pc_relative */ |
| 351 | 0, /* bitpos */ |
| 352 | complain_overflow_dont, /* complain_on_overflow */ |
| 353 | NULL, /* special_function */ |
| 354 | "R_M32R_GNU_VTINHERIT", /* name */ |
| 355 | FALSE, /* partial_inplace */ |
| 356 | 0, /* src_mask */ |
| 357 | 0, /* dst_mask */ |
| 358 | FALSE), /* pcrel_offset */ |
| 359 | |
| 360 | /* GNU extension to record C++ vtable member usage */ |
| 361 | HOWTO (R_M32R_GNU_VTENTRY, /* type */ |
| 362 | 0, /* rightshift */ |
| 363 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 364 | 0, /* bitsize */ |
| 365 | FALSE, /* pc_relative */ |
| 366 | 0, /* bitpos */ |
| 367 | complain_overflow_dont, /* complain_on_overflow */ |
| 368 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
| 369 | "R_M32R_GNU_VTENTRY", /* name */ |
| 370 | FALSE, /* partial_inplace */ |
| 371 | 0, /* src_mask */ |
| 372 | 0, /* dst_mask */ |
| 373 | FALSE), /* pcrel_offset */ |
| 374 | |
| 375 | EMPTY_HOWTO (13), |
| 376 | EMPTY_HOWTO (14), |
| 377 | EMPTY_HOWTO (15), |
| 378 | EMPTY_HOWTO (16), |
| 379 | EMPTY_HOWTO (17), |
| 380 | EMPTY_HOWTO (18), |
| 381 | EMPTY_HOWTO (19), |
| 382 | EMPTY_HOWTO (20), |
| 383 | EMPTY_HOWTO (21), |
| 384 | EMPTY_HOWTO (22), |
| 385 | EMPTY_HOWTO (23), |
| 386 | EMPTY_HOWTO (24), |
| 387 | EMPTY_HOWTO (25), |
| 388 | EMPTY_HOWTO (26), |
| 389 | EMPTY_HOWTO (27), |
| 390 | EMPTY_HOWTO (28), |
| 391 | EMPTY_HOWTO (29), |
| 392 | EMPTY_HOWTO (30), |
| 393 | EMPTY_HOWTO (31), |
| 394 | EMPTY_HOWTO (32), |
| 395 | |
| 396 | /* A 16 bit absolute relocation. */ |
| 397 | HOWTO (R_M32R_16_RELA, /* type */ |
| 398 | 0, /* rightshift */ |
| 399 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 400 | 16, /* bitsize */ |
| 401 | FALSE, /* pc_relative */ |
| 402 | 0, /* bitpos */ |
| 403 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 404 | bfd_elf_generic_reloc, /* special_function */ |
| 405 | "R_M32R_16_RELA", /* name */ |
| 406 | FALSE, /* partial_inplace */ |
| 407 | 0xffff, /* src_mask */ |
| 408 | 0xffff, /* dst_mask */ |
| 409 | FALSE), /* pcrel_offset */ |
| 410 | |
| 411 | /* A 32 bit absolute relocation. */ |
| 412 | HOWTO (R_M32R_32_RELA, /* type */ |
| 413 | 0, /* rightshift */ |
| 414 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 415 | 32, /* bitsize */ |
| 416 | FALSE, /* pc_relative */ |
| 417 | 0, /* bitpos */ |
| 418 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 419 | bfd_elf_generic_reloc,/* special_function */ |
| 420 | "R_M32R_32_RELA", /* name */ |
| 421 | FALSE, /* partial_inplace */ |
| 422 | 0xffffffff, /* src_mask */ |
| 423 | 0xffffffff, /* dst_mask */ |
| 424 | FALSE), /* pcrel_offset */ |
| 425 | |
| 426 | /* A 24 bit address. */ |
| 427 | HOWTO (R_M32R_24_RELA, /* type */ |
| 428 | 0, /* rightshift */ |
| 429 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 430 | 24, /* bitsize */ |
| 431 | FALSE, /* pc_relative */ |
| 432 | 0, /* bitpos */ |
| 433 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 434 | bfd_elf_generic_reloc,/* special_function */ |
| 435 | "R_M32R_24_RELA", /* name */ |
| 436 | FALSE, /* partial_inplace */ |
| 437 | 0xffffff, /* src_mask */ |
| 438 | 0xffffff, /* dst_mask */ |
| 439 | FALSE), /* pcrel_offset */ |
| 440 | |
| 441 | HOWTO (R_M32R_10_PCREL_RELA, /* type */ |
| 442 | 2, /* rightshift */ |
| 443 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 444 | 10, /* bitsize */ |
| 445 | TRUE, /* pc_relative */ |
| 446 | 0, /* bitpos */ |
| 447 | complain_overflow_signed, /* complain_on_overflow */ |
| 448 | m32r_elf_10_pcrel_reloc, /* special_function */ |
| 449 | "R_M32R_10_PCREL_RELA",/* name */ |
| 450 | FALSE, /* partial_inplace */ |
| 451 | 0xff, /* src_mask */ |
| 452 | 0xff, /* dst_mask */ |
| 453 | TRUE), /* pcrel_offset */ |
| 454 | |
| 455 | /* A relative 18 bit relocation, right shifted by 2. */ |
| 456 | HOWTO (R_M32R_18_PCREL_RELA, /* type */ |
| 457 | 2, /* rightshift */ |
| 458 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 459 | 16, /* bitsize */ |
| 460 | TRUE, /* pc_relative */ |
| 461 | 0, /* bitpos */ |
| 462 | complain_overflow_signed, /* complain_on_overflow */ |
| 463 | bfd_elf_generic_reloc, /* special_function */ |
| 464 | "R_M32R_18_PCREL_RELA",/* name */ |
| 465 | FALSE, /* partial_inplace */ |
| 466 | 0xffff, /* src_mask */ |
| 467 | 0xffff, /* dst_mask */ |
| 468 | TRUE), /* pcrel_offset */ |
| 469 | |
| 470 | /* A relative 26 bit relocation, right shifted by 2. */ |
| 471 | HOWTO (R_M32R_26_PCREL_RELA, /* type */ |
| 472 | 2, /* rightshift */ |
| 473 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 474 | 26, /* bitsize */ |
| 475 | TRUE, /* pc_relative */ |
| 476 | 0, /* bitpos */ |
| 477 | complain_overflow_signed, /* complain_on_overflow */ |
| 478 | bfd_elf_generic_reloc, /* special_function */ |
| 479 | "R_M32R_26_PCREL_RELA",/* name */ |
| 480 | FALSE, /* partial_inplace */ |
| 481 | 0xffffff, /* src_mask */ |
| 482 | 0xffffff, /* dst_mask */ |
| 483 | TRUE), /* pcrel_offset */ |
| 484 | |
| 485 | /* High 16 bits of address when lower 16 is or'd in. */ |
| 486 | HOWTO (R_M32R_HI16_ULO_RELA, /* type */ |
| 487 | 16, /* rightshift */ |
| 488 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 489 | 16, /* bitsize */ |
| 490 | FALSE, /* pc_relative */ |
| 491 | 0, /* bitpos */ |
| 492 | complain_overflow_dont, /* complain_on_overflow */ |
| 493 | bfd_elf_generic_reloc, /* special_function */ |
| 494 | "R_M32R_HI16_ULO_RELA",/* name */ |
| 495 | FALSE, /* partial_inplace */ |
| 496 | 0x0000ffff, /* src_mask */ |
| 497 | 0x0000ffff, /* dst_mask */ |
| 498 | FALSE), /* pcrel_offset */ |
| 499 | |
| 500 | /* High 16 bits of address when lower 16 is added in. */ |
| 501 | HOWTO (R_M32R_HI16_SLO_RELA, /* type */ |
| 502 | 16, /* rightshift */ |
| 503 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 504 | 16, /* bitsize */ |
| 505 | FALSE, /* pc_relative */ |
| 506 | 0, /* bitpos */ |
| 507 | complain_overflow_dont, /* complain_on_overflow */ |
| 508 | bfd_elf_generic_reloc, /* special_function */ |
| 509 | "R_M32R_HI16_SLO_RELA",/* name */ |
| 510 | FALSE, /* partial_inplace */ |
| 511 | 0x0000ffff, /* src_mask */ |
| 512 | 0x0000ffff, /* dst_mask */ |
| 513 | FALSE), /* pcrel_offset */ |
| 514 | |
| 515 | /* Lower 16 bits of address. */ |
| 516 | HOWTO (R_M32R_LO16_RELA, /* type */ |
| 517 | 0, /* rightshift */ |
| 518 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 519 | 16, /* bitsize */ |
| 520 | FALSE, /* pc_relative */ |
| 521 | 0, /* bitpos */ |
| 522 | complain_overflow_dont, /* complain_on_overflow */ |
| 523 | bfd_elf_generic_reloc, /* special_function */ |
| 524 | "R_M32R_LO16_RELA", /* name */ |
| 525 | FALSE, /* partial_inplace */ |
| 526 | 0x0000ffff, /* src_mask */ |
| 527 | 0x0000ffff, /* dst_mask */ |
| 528 | FALSE), /* pcrel_offset */ |
| 529 | |
| 530 | /* Small data area 16 bits offset. */ |
| 531 | HOWTO (R_M32R_SDA16_RELA, /* type */ |
| 532 | 0, /* rightshift */ |
| 533 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 534 | 16, /* bitsize */ |
| 535 | FALSE, /* pc_relative */ |
| 536 | 0, /* bitpos */ |
| 537 | complain_overflow_signed, /* complain_on_overflow */ |
| 538 | bfd_elf_generic_reloc, /* special_function */ |
| 539 | "R_M32R_SDA16_RELA", /* name */ |
| 540 | TRUE, /* partial_inplace */ /* FIXME: correct? */ |
| 541 | 0x0000ffff, /* src_mask */ |
| 542 | 0x0000ffff, /* dst_mask */ |
| 543 | FALSE), /* pcrel_offset */ |
| 544 | |
| 545 | /* GNU extension to record C++ vtable hierarchy */ |
| 546 | HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */ |
| 547 | 0, /* rightshift */ |
| 548 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 549 | 0, /* bitsize */ |
| 550 | FALSE, /* pc_relative */ |
| 551 | 0, /* bitpos */ |
| 552 | complain_overflow_dont, /* complain_on_overflow */ |
| 553 | NULL, /* special_function */ |
| 554 | "R_M32R_RELA_GNU_VTINHERIT", /* name */ |
| 555 | FALSE, /* partial_inplace */ |
| 556 | 0, /* src_mask */ |
| 557 | 0, /* dst_mask */ |
| 558 | FALSE), /* pcrel_offset */ |
| 559 | |
| 560 | /* GNU extension to record C++ vtable member usage */ |
| 561 | HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */ |
| 562 | 0, /* rightshift */ |
| 563 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 564 | 0, /* bitsize */ |
| 565 | FALSE, /* pc_relative */ |
| 566 | 0, /* bitpos */ |
| 567 | complain_overflow_dont, /* complain_on_overflow */ |
| 568 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ |
| 569 | "R_M32R_RELA_GNU_VTENTRY", /* name */ |
| 570 | FALSE, /* partial_inplace */ |
| 571 | 0, /* src_mask */ |
| 572 | 0, /* dst_mask */ |
| 573 | FALSE), /* pcrel_offset */ |
| 574 | |
| 575 | EMPTY_HOWTO (45), |
| 576 | EMPTY_HOWTO (46), |
| 577 | EMPTY_HOWTO (47), |
| 578 | |
| 579 | /* Like R_M32R_24, but referring to the GOT table entry for |
| 580 | the symbol. */ |
| 581 | HOWTO (R_M32R_GOT24, /* type */ |
| 582 | 0, /* rightshift */ |
| 583 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 584 | 24, /* bitsize */ |
| 585 | FALSE, /* pc_relative */ |
| 586 | 0, /* bitpos */ |
| 587 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 588 | bfd_elf_generic_reloc, /* special_function */ |
| 589 | "R_M32R_GOT24", /* name */ |
| 590 | FALSE, /* partial_inplace */ |
| 591 | 0xffffff, /* src_mask */ |
| 592 | 0xffffff, /* dst_mask */ |
| 593 | FALSE), /* pcrel_offset */ |
| 594 | |
| 595 | /* Like R_M32R_PCREL, but referring to the procedure linkage table |
| 596 | entry for the symbol. */ |
| 597 | HOWTO (R_M32R_26_PLTREL, /* type */ |
| 598 | 2, /* rightshift */ |
| 599 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 600 | 24, /* bitsize */ |
| 601 | TRUE, /* pc_relative */ |
| 602 | 0, /* bitpos */ |
| 603 | complain_overflow_signed, /* complain_on_overflow */ |
| 604 | bfd_elf_generic_reloc, /* special_function */ |
| 605 | "R_M32R_26_PLTREL", /* name */ |
| 606 | FALSE, /* partial_inplace */ |
| 607 | 0xffffff, /* src_mask */ |
| 608 | 0xffffff, /* dst_mask */ |
| 609 | TRUE), /* pcrel_offset */ |
| 610 | |
| 611 | /* This is used only by the dynamic linker. The symbol should exist |
| 612 | both in the object being run and in some shared library. The |
| 613 | dynamic linker copies the data addressed by the symbol from the |
| 614 | shared library into the object, because the object being |
| 615 | run has to have the data at some particular address. */ |
| 616 | HOWTO (R_M32R_COPY, /* type */ |
| 617 | 0, /* rightshift */ |
| 618 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 619 | 32, /* bitsize */ |
| 620 | FALSE, /* pc_relative */ |
| 621 | 0, /* bitpos */ |
| 622 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 623 | bfd_elf_generic_reloc, /* special_function */ |
| 624 | "R_M32R_COPY", /* name */ |
| 625 | FALSE, /* partial_inplace */ |
| 626 | 0xffffffff, /* src_mask */ |
| 627 | 0xffffffff, /* dst_mask */ |
| 628 | FALSE), /* pcrel_offset */ |
| 629 | |
| 630 | /* Like R_M32R_24, but used when setting global offset table |
| 631 | entries. */ |
| 632 | HOWTO (R_M32R_GLOB_DAT, /* type */ |
| 633 | 0, /* rightshift */ |
| 634 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 635 | 32, /* bitsize */ |
| 636 | FALSE, /* pc_relative */ |
| 637 | 0, /* bitpos */ |
| 638 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 639 | bfd_elf_generic_reloc, /* special_function */ |
| 640 | "R_M32R_GLOB_DAT", /* name */ |
| 641 | FALSE, /* partial_inplace */ |
| 642 | 0xffffffff, /* src_mask */ |
| 643 | 0xffffffff, /* dst_mask */ |
| 644 | FALSE), /* pcrel_offset */ |
| 645 | |
| 646 | /* Marks a procedure linkage table entry for a symbol. */ |
| 647 | HOWTO (R_M32R_JMP_SLOT, /* type */ |
| 648 | 0, /* rightshift */ |
| 649 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 650 | 32, /* bitsize */ |
| 651 | FALSE, /* pc_relative */ |
| 652 | 0, /* bitpos */ |
| 653 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 654 | bfd_elf_generic_reloc, /* special_function */ |
| 655 | "R_M32R_JMP_SLOT", /* name */ |
| 656 | FALSE, /* partial_inplace */ |
| 657 | 0xffffffff, /* src_mask */ |
| 658 | 0xffffffff, /* dst_mask */ |
| 659 | FALSE), /* pcrel_offset */ |
| 660 | |
| 661 | /* Used only by the dynamic linker. When the object is run, this |
| 662 | longword is set to the load address of the object, plus the |
| 663 | addend. */ |
| 664 | HOWTO (R_M32R_RELATIVE, /* type */ |
| 665 | 0, /* rightshift */ |
| 666 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 667 | 32, /* bitsize */ |
| 668 | FALSE, /* pc_relative */ |
| 669 | 0, /* bitpos */ |
| 670 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 671 | bfd_elf_generic_reloc, /* special_function */ |
| 672 | "R_M32R_RELATIVE", /* name */ |
| 673 | FALSE, /* partial_inplace */ |
| 674 | 0xffffffff, /* src_mask */ |
| 675 | 0xffffffff, /* dst_mask */ |
| 676 | FALSE), /* pcrel_offset */ |
| 677 | |
| 678 | HOWTO (R_M32R_GOTOFF, /* type */ |
| 679 | 0, /* rightshift */ |
| 680 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 681 | 24, /* bitsize */ |
| 682 | FALSE, /* pc_relative */ |
| 683 | 0, /* bitpos */ |
| 684 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 685 | bfd_elf_generic_reloc, /* special_function */ |
| 686 | "R_M32R_GOTOFF", /* name */ |
| 687 | FALSE, /* partial_inplace */ |
| 688 | 0xffffff, /* src_mask */ |
| 689 | 0xffffff, /* dst_mask */ |
| 690 | FALSE), /* pcrel_offset */ |
| 691 | |
| 692 | /* An PC Relative 24-bit relocation used when setting PIC offset |
| 693 | table register. */ |
| 694 | HOWTO (R_M32R_GOTPC24, /* type */ |
| 695 | 0, /* rightshift */ |
| 696 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 697 | 24, /* bitsize */ |
| 698 | TRUE, /* pc_relative */ |
| 699 | 0, /* bitpos */ |
| 700 | complain_overflow_unsigned, /* complain_on_overflow */ |
| 701 | bfd_elf_generic_reloc, /* special_function */ |
| 702 | "R_M32R_GOTPC24", /* name */ |
| 703 | FALSE, /* partial_inplace */ |
| 704 | 0xffffff, /* src_mask */ |
| 705 | 0xffffff, /* dst_mask */ |
| 706 | TRUE), /* pcrel_offset */ |
| 707 | |
| 708 | /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for |
| 709 | the symbol. */ |
| 710 | HOWTO (R_M32R_GOT16_HI_ULO, /* type */ |
| 711 | 16, /* rightshift */ |
| 712 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 713 | 16, /* bitsize */ |
| 714 | FALSE, /* pc_relative */ |
| 715 | 0, /* bitpos */ |
| 716 | complain_overflow_dont, /* complain_on_overflow */ |
| 717 | bfd_elf_generic_reloc, /* special_function */ |
| 718 | "R_M32R_GOT16_HI_ULO", /* name */ |
| 719 | FALSE, /* partial_inplace */ |
| 720 | 0x0000ffff, /* src_mask */ |
| 721 | 0x0000ffff, /* dst_mask */ |
| 722 | FALSE), /* pcrel_offset */ |
| 723 | |
| 724 | /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for |
| 725 | the symbol. */ |
| 726 | HOWTO (R_M32R_GOT16_HI_SLO, /* type */ |
| 727 | 16, /* rightshift */ |
| 728 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 729 | 16, /* bitsize */ |
| 730 | FALSE, /* pc_relative */ |
| 731 | 0, /* bitpos */ |
| 732 | complain_overflow_dont, /* complain_on_overflow */ |
| 733 | bfd_elf_generic_reloc, /* special_function */ |
| 734 | "R_M32R_GOT16_HI_SLO", /* name */ |
| 735 | FALSE, /* partial_inplace */ |
| 736 | 0x0000ffff, /* src_mask */ |
| 737 | 0x0000ffff, /* dst_mask */ |
| 738 | FALSE), /* pcrel_offset */ |
| 739 | |
| 740 | /* Like R_M32R_LO16, but referring to the GOT table entry for |
| 741 | the symbol. */ |
| 742 | HOWTO (R_M32R_GOT16_LO, /* type */ |
| 743 | 0, /* rightshift */ |
| 744 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 745 | 16, /* bitsize */ |
| 746 | FALSE, /* pc_relative */ |
| 747 | 0, /* bitpos */ |
| 748 | complain_overflow_dont, /* complain_on_overflow */ |
| 749 | bfd_elf_generic_reloc, /* special_function */ |
| 750 | "R_M32R_GOT16_LO", /* name */ |
| 751 | FALSE, /* partial_inplace */ |
| 752 | 0x0000ffff, /* src_mask */ |
| 753 | 0x0000ffff, /* dst_mask */ |
| 754 | FALSE), /* pcrel_offset */ |
| 755 | |
| 756 | /* An PC Relative relocation used when setting PIC offset table register. |
| 757 | Like R_M32R_HI16_ULO, but referring to the GOT table entry for |
| 758 | the symbol. */ |
| 759 | HOWTO (R_M32R_GOTPC_HI_ULO, /* type */ |
| 760 | 16, /* rightshift */ |
| 761 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 762 | 16, /* bitsize */ |
| 763 | FALSE, /* pc_relative */ |
| 764 | 0, /* bitpos */ |
| 765 | complain_overflow_dont, /* complain_on_overflow */ |
| 766 | bfd_elf_generic_reloc, /* special_function */ |
| 767 | "R_M32R_GOTPC_HI_ULO", /* name */ |
| 768 | FALSE, /* partial_inplace */ |
| 769 | 0x0000ffff, /* src_mask */ |
| 770 | 0x0000ffff, /* dst_mask */ |
| 771 | TRUE), /* pcrel_offset */ |
| 772 | |
| 773 | /* An PC Relative relocation used when setting PIC offset table register. |
| 774 | Like R_M32R_HI16_SLO, but referring to the GOT table entry for |
| 775 | the symbol. */ |
| 776 | HOWTO (R_M32R_GOTPC_HI_SLO, /* type */ |
| 777 | 16, /* rightshift */ |
| 778 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 779 | 16, /* bitsize */ |
| 780 | FALSE, /* pc_relative */ |
| 781 | 0, /* bitpos */ |
| 782 | complain_overflow_dont, /* complain_on_overflow */ |
| 783 | bfd_elf_generic_reloc, /* special_function */ |
| 784 | "R_M32R_GOTPC_HI_SLO", /* name */ |
| 785 | FALSE, /* partial_inplace */ |
| 786 | 0x0000ffff, /* src_mask */ |
| 787 | 0x0000ffff, /* dst_mask */ |
| 788 | TRUE), /* pcrel_offset */ |
| 789 | |
| 790 | /* An PC Relative relocation used when setting PIC offset table register. |
| 791 | Like R_M32R_LO16, but referring to the GOT table entry for |
| 792 | the symbol. */ |
| 793 | HOWTO (R_M32R_GOTPC_LO, /* type */ |
| 794 | 0, /* rightshift */ |
| 795 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 796 | 16, /* bitsize */ |
| 797 | FALSE, /* pc_relative */ |
| 798 | 0, /* bitpos */ |
| 799 | complain_overflow_dont, /* complain_on_overflow */ |
| 800 | bfd_elf_generic_reloc, /* special_function */ |
| 801 | "R_M32R_GOTPC_LO", /* name */ |
| 802 | FALSE, /* partial_inplace */ |
| 803 | 0x0000ffff, /* src_mask */ |
| 804 | 0x0000ffff, /* dst_mask */ |
| 805 | TRUE), /* pcrel_offset */ |
| 806 | |
| 807 | HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */ |
| 808 | 16, /* rightshift */ |
| 809 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 810 | 16, /* bitsize */ |
| 811 | FALSE, /* pc_relative */ |
| 812 | 0, /* bitpos */ |
| 813 | complain_overflow_dont, /* complain_on_overflow */ |
| 814 | bfd_elf_generic_reloc, /* special_function */ |
| 815 | "R_M32R_GOTOFF_HI_ULO",/* name */ |
| 816 | FALSE, /* partial_inplace */ |
| 817 | 0x0000ffff, /* src_mask */ |
| 818 | 0x0000ffff, /* dst_mask */ |
| 819 | FALSE), /* pcrel_offset */ |
| 820 | |
| 821 | HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */ |
| 822 | 16, /* rightshift */ |
| 823 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 824 | 16, /* bitsize */ |
| 825 | FALSE, /* pc_relative */ |
| 826 | 0, /* bitpos */ |
| 827 | complain_overflow_dont, /* complain_on_overflow */ |
| 828 | bfd_elf_generic_reloc, /* special_function */ |
| 829 | "R_M32R_GOTOFF_HI_SLO",/* name */ |
| 830 | FALSE, /* partial_inplace */ |
| 831 | 0x0000ffff, /* src_mask */ |
| 832 | 0x0000ffff, /* dst_mask */ |
| 833 | FALSE), /* pcrel_offset */ |
| 834 | |
| 835 | HOWTO (R_M32R_GOTOFF_LO, /* type */ |
| 836 | 0, /* rightshift */ |
| 837 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 838 | 16, /* bitsize */ |
| 839 | FALSE, /* pc_relative */ |
| 840 | 0, /* bitpos */ |
| 841 | complain_overflow_dont, /* complain_on_overflow */ |
| 842 | bfd_elf_generic_reloc, /* special_function */ |
| 843 | "R_M32R_GOTOFF_LO", /* name */ |
| 844 | FALSE, /* partial_inplace */ |
| 845 | 0x0000ffff, /* src_mask */ |
| 846 | 0x0000ffff, /* dst_mask */ |
| 847 | FALSE), /* pcrel_offset */ |
| 848 | }; |
| 849 | \f |
| 850 | /* Handle the R_M32R_10_PCREL reloc. */ |
| 851 | |
| 852 | static bfd_reloc_status_type |
| 853 | m32r_elf_10_pcrel_reloc (abfd, reloc_entry, symbol, data, |
| 854 | input_section, output_bfd, error_message) |
| 855 | bfd * abfd; |
| 856 | arelent * reloc_entry; |
| 857 | asymbol * symbol; |
| 858 | PTR data; |
| 859 | asection * input_section; |
| 860 | bfd * output_bfd; |
| 861 | char ** error_message ATTRIBUTE_UNUSED; |
| 862 | { |
| 863 | /* This part is from bfd_elf_generic_reloc. */ |
| 864 | if (output_bfd != (bfd *) NULL |
| 865 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
| 866 | && (! reloc_entry->howto->partial_inplace |
| 867 | || reloc_entry->addend == 0)) |
| 868 | { |
| 869 | reloc_entry->address += input_section->output_offset; |
| 870 | return bfd_reloc_ok; |
| 871 | } |
| 872 | |
| 873 | if (output_bfd != NULL) |
| 874 | { |
| 875 | /* FIXME: See bfd_perform_relocation. Is this right? */ |
| 876 | return bfd_reloc_continue; |
| 877 | } |
| 878 | |
| 879 | return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto, |
| 880 | input_section, |
| 881 | data, reloc_entry->address, |
| 882 | symbol->section, |
| 883 | (symbol->value |
| 884 | + symbol->section->output_section->vma |
| 885 | + symbol->section->output_offset), |
| 886 | reloc_entry->addend); |
| 887 | } |
| 888 | |
| 889 | /* Utility to actually perform an R_M32R_10_PCREL reloc. */ |
| 890 | |
| 891 | static bfd_reloc_status_type |
| 892 | m32r_elf_do_10_pcrel_reloc (abfd, howto, input_section, data, offset, |
| 893 | symbol_section, symbol_value, addend) |
| 894 | bfd *abfd; |
| 895 | reloc_howto_type *howto; |
| 896 | asection *input_section; |
| 897 | bfd_byte *data; |
| 898 | bfd_vma offset; |
| 899 | asection *symbol_section ATTRIBUTE_UNUSED; |
| 900 | bfd_vma symbol_value; |
| 901 | bfd_vma addend; |
| 902 | { |
| 903 | bfd_signed_vma relocation; |
| 904 | unsigned long x; |
| 905 | bfd_reloc_status_type status; |
| 906 | |
| 907 | /* Sanity check the address (offset in section). */ |
| 908 | if (offset > bfd_get_section_limit (abfd, input_section)) |
| 909 | return bfd_reloc_outofrange; |
| 910 | |
| 911 | relocation = symbol_value + addend; |
| 912 | /* Make it pc relative. */ |
| 913 | relocation -= (input_section->output_section->vma |
| 914 | + input_section->output_offset); |
| 915 | /* These jumps mask off the lower two bits of the current address |
| 916 | before doing pcrel calculations. */ |
| 917 | relocation -= (offset & -(bfd_vma) 4); |
| 918 | |
| 919 | if (relocation < -0x200 || relocation > 0x1ff) |
| 920 | status = bfd_reloc_overflow; |
| 921 | else |
| 922 | status = bfd_reloc_ok; |
| 923 | |
| 924 | x = bfd_get_16 (abfd, data + offset); |
| 925 | relocation >>= howto->rightshift; |
| 926 | relocation <<= howto->bitpos; |
| 927 | x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask); |
| 928 | bfd_put_16 (abfd, (bfd_vma) x, data + offset); |
| 929 | |
| 930 | return status; |
| 931 | } |
| 932 | |
| 933 | /* Handle the R_M32R_HI16_[SU]LO relocs. |
| 934 | HI16_SLO is for the add3 and load/store with displacement instructions. |
| 935 | HI16_ULO is for the or3 instruction. |
| 936 | For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to |
| 937 | the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then |
| 938 | we must add one to the high 16 bytes (which will get subtracted off when |
| 939 | the low 16 bits are added). |
| 940 | These relocs have to be done in combination with an R_M32R_LO16 reloc |
| 941 | because there is a carry from the LO16 to the HI16. Here we just save |
| 942 | the information we need; we do the actual relocation when we see the LO16. |
| 943 | This code is copied from the elf32-mips.c. We also support an arbitrary |
| 944 | number of HI16 relocs to be associated with a single LO16 reloc. The |
| 945 | assembler sorts the relocs to ensure each HI16 immediately precedes its |
| 946 | LO16. However if there are multiple copies, the assembler may not find |
| 947 | the real LO16 so it picks the first one it finds. */ |
| 948 | |
| 949 | struct m32r_hi16 |
| 950 | { |
| 951 | struct m32r_hi16 *next; |
| 952 | bfd_byte *addr; |
| 953 | bfd_vma addend; |
| 954 | }; |
| 955 | |
| 956 | /* FIXME: This should not be a static variable. */ |
| 957 | |
| 958 | static struct m32r_hi16 *m32r_hi16_list; |
| 959 | |
| 960 | static bfd_reloc_status_type |
| 961 | m32r_elf_hi16_reloc (abfd, reloc_entry, symbol, data, |
| 962 | input_section, output_bfd, error_message) |
| 963 | bfd *abfd ATTRIBUTE_UNUSED; |
| 964 | arelent *reloc_entry; |
| 965 | asymbol *symbol; |
| 966 | PTR data; |
| 967 | asection *input_section; |
| 968 | bfd *output_bfd; |
| 969 | char **error_message ATTRIBUTE_UNUSED; |
| 970 | { |
| 971 | bfd_reloc_status_type ret; |
| 972 | bfd_vma relocation; |
| 973 | struct m32r_hi16 *n; |
| 974 | |
| 975 | /* This part is from bfd_elf_generic_reloc. |
| 976 | If we're relocating, and this an external symbol, we don't want |
| 977 | to change anything. */ |
| 978 | if (output_bfd != (bfd *) NULL |
| 979 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
| 980 | && reloc_entry->addend == 0) |
| 981 | { |
| 982 | reloc_entry->address += input_section->output_offset; |
| 983 | return bfd_reloc_ok; |
| 984 | } |
| 985 | |
| 986 | /* Sanity check the address (offset in section). */ |
| 987 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
| 988 | return bfd_reloc_outofrange; |
| 989 | |
| 990 | ret = bfd_reloc_ok; |
| 991 | if (bfd_is_und_section (symbol->section) |
| 992 | && output_bfd == (bfd *) NULL) |
| 993 | ret = bfd_reloc_undefined; |
| 994 | |
| 995 | if (bfd_is_com_section (symbol->section)) |
| 996 | relocation = 0; |
| 997 | else |
| 998 | relocation = symbol->value; |
| 999 | |
| 1000 | relocation += symbol->section->output_section->vma; |
| 1001 | relocation += symbol->section->output_offset; |
| 1002 | relocation += reloc_entry->addend; |
| 1003 | |
| 1004 | /* Save the information, and let LO16 do the actual relocation. */ |
| 1005 | n = (struct m32r_hi16 *) bfd_malloc ((bfd_size_type) sizeof *n); |
| 1006 | if (n == NULL) |
| 1007 | return bfd_reloc_outofrange; |
| 1008 | n->addr = (bfd_byte *) data + reloc_entry->address; |
| 1009 | n->addend = relocation; |
| 1010 | n->next = m32r_hi16_list; |
| 1011 | m32r_hi16_list = n; |
| 1012 | |
| 1013 | if (output_bfd != (bfd *) NULL) |
| 1014 | reloc_entry->address += input_section->output_offset; |
| 1015 | |
| 1016 | return ret; |
| 1017 | } |
| 1018 | |
| 1019 | /* Handle an M32R ELF HI16 reloc. */ |
| 1020 | |
| 1021 | static void |
| 1022 | m32r_elf_relocate_hi16 (input_bfd, type, relhi, rello, contents, addend) |
| 1023 | bfd *input_bfd; |
| 1024 | int type; |
| 1025 | Elf_Internal_Rela *relhi; |
| 1026 | Elf_Internal_Rela *rello; |
| 1027 | bfd_byte *contents; |
| 1028 | bfd_vma addend; |
| 1029 | { |
| 1030 | unsigned long insn; |
| 1031 | bfd_vma addlo; |
| 1032 | |
| 1033 | insn = bfd_get_32 (input_bfd, contents + relhi->r_offset); |
| 1034 | |
| 1035 | addlo = bfd_get_32 (input_bfd, contents + rello->r_offset); |
| 1036 | if (type == R_M32R_HI16_SLO) |
| 1037 | addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000; |
| 1038 | else |
| 1039 | addlo &= 0xffff; |
| 1040 | |
| 1041 | addend += ((insn & 0xffff) << 16) + addlo; |
| 1042 | |
| 1043 | /* Reaccount for sign extension of low part. */ |
| 1044 | if (type == R_M32R_HI16_SLO |
| 1045 | && (addend & 0x8000) != 0) |
| 1046 | addend += 0x10000; |
| 1047 | |
| 1048 | bfd_put_32 (input_bfd, |
| 1049 | (insn & 0xffff0000) | ((addend >> 16) & 0xffff), |
| 1050 | contents + relhi->r_offset); |
| 1051 | } |
| 1052 | |
| 1053 | /* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit |
| 1054 | inplace relocation; this function exists in order to do the |
| 1055 | R_M32R_HI16_[SU]LO relocation described above. */ |
| 1056 | |
| 1057 | bfd_reloc_status_type |
| 1058 | m32r_elf_lo16_reloc (input_bfd, reloc_entry, symbol, data, |
| 1059 | input_section, output_bfd, error_message) |
| 1060 | bfd *input_bfd; |
| 1061 | arelent *reloc_entry; |
| 1062 | asymbol *symbol; |
| 1063 | PTR data; |
| 1064 | asection *input_section; |
| 1065 | bfd *output_bfd; |
| 1066 | char **error_message; |
| 1067 | { |
| 1068 | /* This part is from bfd_elf_generic_reloc. |
| 1069 | If we're relocating, and this an external symbol, we don't want |
| 1070 | to change anything. */ |
| 1071 | if (output_bfd != (bfd *) NULL |
| 1072 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
| 1073 | && reloc_entry->addend == 0) |
| 1074 | { |
| 1075 | reloc_entry->address += input_section->output_offset; |
| 1076 | return bfd_reloc_ok; |
| 1077 | } |
| 1078 | |
| 1079 | if (m32r_hi16_list != NULL) |
| 1080 | { |
| 1081 | struct m32r_hi16 *l; |
| 1082 | |
| 1083 | l = m32r_hi16_list; |
| 1084 | while (l != NULL) |
| 1085 | { |
| 1086 | unsigned long insn; |
| 1087 | unsigned long val; |
| 1088 | unsigned long vallo; |
| 1089 | struct m32r_hi16 *next; |
| 1090 | |
| 1091 | /* Do the HI16 relocation. Note that we actually don't need |
| 1092 | to know anything about the LO16 itself, except where to |
| 1093 | find the low 16 bits of the addend needed by the LO16. */ |
| 1094 | insn = bfd_get_32 (input_bfd, l->addr); |
| 1095 | vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address) |
| 1096 | & 0xffff) ^ 0x8000) - 0x8000; |
| 1097 | val = ((insn & 0xffff) << 16) + vallo; |
| 1098 | val += l->addend; |
| 1099 | |
| 1100 | /* Reaccount for sign extension of low part. */ |
| 1101 | if ((val & 0x8000) != 0) |
| 1102 | val += 0x10000; |
| 1103 | |
| 1104 | insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff); |
| 1105 | bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr); |
| 1106 | |
| 1107 | next = l->next; |
| 1108 | free (l); |
| 1109 | l = next; |
| 1110 | } |
| 1111 | |
| 1112 | m32r_hi16_list = NULL; |
| 1113 | } |
| 1114 | |
| 1115 | /* Now do the LO16 reloc in the usual way. |
| 1116 | ??? It would be nice to call bfd_elf_generic_reloc here, |
| 1117 | but we have partial_inplace set. bfd_elf_generic_reloc will |
| 1118 | pass the handling back to bfd_install_relocation which will install |
| 1119 | a section relative addend which is wrong. */ |
| 1120 | return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data, |
| 1121 | input_section, output_bfd, error_message); |
| 1122 | } |
| 1123 | |
| 1124 | /* Do generic partial_inplace relocation. |
| 1125 | This is a local replacement for bfd_elf_generic_reloc. */ |
| 1126 | |
| 1127 | bfd_reloc_status_type |
| 1128 | m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data, |
| 1129 | input_section, output_bfd, error_message) |
| 1130 | bfd *input_bfd; |
| 1131 | arelent *reloc_entry; |
| 1132 | asymbol *symbol; |
| 1133 | PTR data; |
| 1134 | asection *input_section; |
| 1135 | bfd *output_bfd; |
| 1136 | char **error_message ATTRIBUTE_UNUSED; |
| 1137 | { |
| 1138 | bfd_reloc_status_type ret; |
| 1139 | bfd_vma relocation; |
| 1140 | bfd_byte *inplace_address; |
| 1141 | |
| 1142 | /* This part is from bfd_elf_generic_reloc. |
| 1143 | If we're relocating, and this an external symbol, we don't want |
| 1144 | to change anything. */ |
| 1145 | if (output_bfd != (bfd *) NULL |
| 1146 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
| 1147 | && reloc_entry->addend == 0) |
| 1148 | { |
| 1149 | reloc_entry->address += input_section->output_offset; |
| 1150 | return bfd_reloc_ok; |
| 1151 | } |
| 1152 | |
| 1153 | /* Now do the reloc in the usual way. |
| 1154 | ??? It would be nice to call bfd_elf_generic_reloc here, |
| 1155 | but we have partial_inplace set. bfd_elf_generic_reloc will |
| 1156 | pass the handling back to bfd_install_relocation which will install |
| 1157 | a section relative addend which is wrong. */ |
| 1158 | |
| 1159 | /* Sanity check the address (offset in section). */ |
| 1160 | if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section)) |
| 1161 | return bfd_reloc_outofrange; |
| 1162 | |
| 1163 | ret = bfd_reloc_ok; |
| 1164 | if (bfd_is_und_section (symbol->section) |
| 1165 | && output_bfd == (bfd *) NULL) |
| 1166 | ret = bfd_reloc_undefined; |
| 1167 | |
| 1168 | if (bfd_is_com_section (symbol->section) |
| 1169 | || output_bfd != (bfd *) NULL) |
| 1170 | relocation = 0; |
| 1171 | else |
| 1172 | relocation = symbol->value; |
| 1173 | |
| 1174 | /* Only do this for a final link. */ |
| 1175 | if (output_bfd == (bfd *) NULL) |
| 1176 | { |
| 1177 | relocation += symbol->section->output_section->vma; |
| 1178 | relocation += symbol->section->output_offset; |
| 1179 | } |
| 1180 | |
| 1181 | relocation += reloc_entry->addend; |
| 1182 | inplace_address = (bfd_byte *) data + reloc_entry->address; |
| 1183 | |
| 1184 | #define DOIT(x) \ |
| 1185 | x = ( (x & ~reloc_entry->howto->dst_mask) | \ |
| 1186 | (((x & reloc_entry->howto->src_mask) + relocation) & \ |
| 1187 | reloc_entry->howto->dst_mask)) |
| 1188 | |
| 1189 | switch (reloc_entry->howto->size) |
| 1190 | { |
| 1191 | case 1: |
| 1192 | { |
| 1193 | short x = bfd_get_16 (input_bfd, inplace_address); |
| 1194 | DOIT (x); |
| 1195 | bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address); |
| 1196 | } |
| 1197 | break; |
| 1198 | case 2: |
| 1199 | { |
| 1200 | unsigned long x = bfd_get_32 (input_bfd, inplace_address); |
| 1201 | DOIT (x); |
| 1202 | bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address); |
| 1203 | } |
| 1204 | break; |
| 1205 | default: |
| 1206 | BFD_ASSERT (0); |
| 1207 | } |
| 1208 | |
| 1209 | if (output_bfd != (bfd *) NULL) |
| 1210 | reloc_entry->address += input_section->output_offset; |
| 1211 | |
| 1212 | return ret; |
| 1213 | } |
| 1214 | |
| 1215 | /* Handle the R_M32R_SDA16 reloc. |
| 1216 | This reloc is used to compute the address of objects in the small data area |
| 1217 | and to perform loads and stores from that area. |
| 1218 | The lower 16 bits are sign extended and added to the register specified |
| 1219 | in the instruction, which is assumed to point to _SDA_BASE_. */ |
| 1220 | |
| 1221 | static bfd_reloc_status_type |
| 1222 | m32r_elf_sda16_reloc (abfd, reloc_entry, symbol, data, |
| 1223 | input_section, output_bfd, error_message) |
| 1224 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1225 | arelent *reloc_entry; |
| 1226 | asymbol *symbol; |
| 1227 | PTR data ATTRIBUTE_UNUSED; |
| 1228 | asection *input_section; |
| 1229 | bfd *output_bfd; |
| 1230 | char **error_message ATTRIBUTE_UNUSED; |
| 1231 | { |
| 1232 | /* This part is from bfd_elf_generic_reloc. */ |
| 1233 | if (output_bfd != (bfd *) NULL |
| 1234 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
| 1235 | && (! reloc_entry->howto->partial_inplace |
| 1236 | || reloc_entry->addend == 0)) |
| 1237 | { |
| 1238 | reloc_entry->address += input_section->output_offset; |
| 1239 | return bfd_reloc_ok; |
| 1240 | } |
| 1241 | |
| 1242 | if (output_bfd != NULL) |
| 1243 | { |
| 1244 | /* FIXME: See bfd_perform_relocation. Is this right? */ |
| 1245 | return bfd_reloc_continue; |
| 1246 | } |
| 1247 | |
| 1248 | /* FIXME: not sure what to do here yet. But then again, the linker |
| 1249 | may never call us. */ |
| 1250 | abort (); |
| 1251 | } |
| 1252 | \f |
| 1253 | /* Map BFD reloc types to M32R ELF reloc types. */ |
| 1254 | |
| 1255 | struct m32r_reloc_map |
| 1256 | { |
| 1257 | bfd_reloc_code_real_type bfd_reloc_val; |
| 1258 | unsigned char elf_reloc_val; |
| 1259 | }; |
| 1260 | |
| 1261 | static const struct m32r_reloc_map m32r_reloc_map_old[] = |
| 1262 | { |
| 1263 | { BFD_RELOC_NONE, R_M32R_NONE }, |
| 1264 | { BFD_RELOC_16, R_M32R_16 }, |
| 1265 | { BFD_RELOC_32, R_M32R_32 }, |
| 1266 | { BFD_RELOC_M32R_24, R_M32R_24 }, |
| 1267 | { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL }, |
| 1268 | { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL }, |
| 1269 | { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL }, |
| 1270 | { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO }, |
| 1271 | { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO }, |
| 1272 | { BFD_RELOC_M32R_LO16, R_M32R_LO16 }, |
| 1273 | { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 }, |
| 1274 | { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT }, |
| 1275 | { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY }, |
| 1276 | }; |
| 1277 | |
| 1278 | static const struct m32r_reloc_map m32r_reloc_map[] = |
| 1279 | { |
| 1280 | { BFD_RELOC_NONE, R_M32R_NONE }, |
| 1281 | { BFD_RELOC_16, R_M32R_16_RELA }, |
| 1282 | { BFD_RELOC_32, R_M32R_32_RELA }, |
| 1283 | { BFD_RELOC_M32R_24, R_M32R_24_RELA }, |
| 1284 | { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA }, |
| 1285 | { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA }, |
| 1286 | { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA }, |
| 1287 | { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA }, |
| 1288 | { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA }, |
| 1289 | { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA }, |
| 1290 | { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA }, |
| 1291 | { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT }, |
| 1292 | { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY }, |
| 1293 | |
| 1294 | { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 }, |
| 1295 | { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL }, |
| 1296 | { BFD_RELOC_M32R_COPY, R_M32R_COPY }, |
| 1297 | { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT }, |
| 1298 | { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT }, |
| 1299 | { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE }, |
| 1300 | { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF }, |
| 1301 | { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 }, |
| 1302 | { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO }, |
| 1303 | { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO }, |
| 1304 | { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO }, |
| 1305 | { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO }, |
| 1306 | { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO }, |
| 1307 | { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO }, |
| 1308 | { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO }, |
| 1309 | { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO }, |
| 1310 | { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO }, |
| 1311 | }; |
| 1312 | |
| 1313 | static reloc_howto_type * |
| 1314 | bfd_elf32_bfd_reloc_type_lookup (abfd, code) |
| 1315 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1316 | bfd_reloc_code_real_type code; |
| 1317 | { |
| 1318 | unsigned int i; |
| 1319 | |
| 1320 | #ifdef USE_M32R_OLD_RELOC |
| 1321 | for (i = 0; |
| 1322 | i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map); |
| 1323 | i++) |
| 1324 | { |
| 1325 | if (m32r_reloc_map_old[i].bfd_reloc_val == code) |
| 1326 | return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val]; |
| 1327 | } |
| 1328 | #else /* ! USE_M32R_OLD_RELOC */ |
| 1329 | |
| 1330 | for (i = 0; |
| 1331 | i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map); |
| 1332 | i++) |
| 1333 | { |
| 1334 | if (m32r_reloc_map[i].bfd_reloc_val == code) |
| 1335 | return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val]; |
| 1336 | } |
| 1337 | #endif |
| 1338 | |
| 1339 | return NULL; |
| 1340 | } |
| 1341 | |
| 1342 | /* Set the howto pointer for an M32R ELF reloc. */ |
| 1343 | |
| 1344 | static void |
| 1345 | m32r_info_to_howto_rel (abfd, cache_ptr, dst) |
| 1346 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1347 | arelent *cache_ptr; |
| 1348 | Elf_Internal_Rela *dst; |
| 1349 | { |
| 1350 | unsigned int r_type; |
| 1351 | |
| 1352 | r_type = ELF32_R_TYPE (dst->r_info); |
| 1353 | BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY); |
| 1354 | cache_ptr->howto = &m32r_elf_howto_table[r_type]; |
| 1355 | } |
| 1356 | |
| 1357 | static void |
| 1358 | m32r_info_to_howto (abfd, cache_ptr, dst) |
| 1359 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1360 | arelent *cache_ptr; |
| 1361 | Elf_Internal_Rela *dst; |
| 1362 | { |
| 1363 | BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE) |
| 1364 | || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY) |
| 1365 | && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max))); |
| 1366 | cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)]; |
| 1367 | } |
| 1368 | |
| 1369 | \f |
| 1370 | /* Given a BFD section, try to locate the corresponding ELF section |
| 1371 | index. */ |
| 1372 | |
| 1373 | bfd_boolean |
| 1374 | _bfd_m32r_elf_section_from_bfd_section (abfd, sec, retval) |
| 1375 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1376 | asection *sec; |
| 1377 | int *retval; |
| 1378 | { |
| 1379 | if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0) |
| 1380 | { |
| 1381 | *retval = SHN_M32R_SCOMMON; |
| 1382 | return TRUE; |
| 1383 | } |
| 1384 | return FALSE; |
| 1385 | } |
| 1386 | |
| 1387 | /* M32R ELF uses two common sections. One is the usual one, and the other |
| 1388 | is for small objects. All the small objects are kept together, and then |
| 1389 | referenced via one register, which yields faster assembler code. It is |
| 1390 | up to the compiler to emit an instruction to load the register with |
| 1391 | _SDA_BASE. This is what we use for the small common section. This |
| 1392 | approach is copied from elf32-mips.c. */ |
| 1393 | static asection m32r_elf_scom_section; |
| 1394 | static asymbol m32r_elf_scom_symbol; |
| 1395 | static asymbol *m32r_elf_scom_symbol_ptr; |
| 1396 | |
| 1397 | /* Handle the special M32R section numbers that a symbol may use. */ |
| 1398 | |
| 1399 | void |
| 1400 | _bfd_m32r_elf_symbol_processing (abfd, asym) |
| 1401 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1402 | asymbol *asym; |
| 1403 | { |
| 1404 | elf_symbol_type *elfsym; |
| 1405 | |
| 1406 | elfsym = (elf_symbol_type *) asym; |
| 1407 | |
| 1408 | switch (elfsym->internal_elf_sym.st_shndx) |
| 1409 | { |
| 1410 | case SHN_M32R_SCOMMON: |
| 1411 | if (m32r_elf_scom_section.name == NULL) |
| 1412 | { |
| 1413 | /* Initialize the small common section. */ |
| 1414 | m32r_elf_scom_section.name = ".scommon"; |
| 1415 | m32r_elf_scom_section.flags = SEC_IS_COMMON; |
| 1416 | m32r_elf_scom_section.output_section = &m32r_elf_scom_section; |
| 1417 | m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol; |
| 1418 | m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr; |
| 1419 | m32r_elf_scom_symbol.name = ".scommon"; |
| 1420 | m32r_elf_scom_symbol.flags = BSF_SECTION_SYM; |
| 1421 | m32r_elf_scom_symbol.section = &m32r_elf_scom_section; |
| 1422 | m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol; |
| 1423 | } |
| 1424 | asym->section = &m32r_elf_scom_section; |
| 1425 | asym->value = elfsym->internal_elf_sym.st_size; |
| 1426 | break; |
| 1427 | } |
| 1428 | } |
| 1429 | |
| 1430 | /* Hook called by the linker routine which adds symbols from an object |
| 1431 | file. We must handle the special M32R section numbers here. |
| 1432 | We also keep watching for whether we need to create the sdata special |
| 1433 | linker sections. */ |
| 1434 | |
| 1435 | static bfd_boolean |
| 1436 | m32r_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
| 1437 | bfd *abfd; |
| 1438 | struct bfd_link_info *info; |
| 1439 | Elf_Internal_Sym *sym; |
| 1440 | const char **namep; |
| 1441 | flagword *flagsp ATTRIBUTE_UNUSED; |
| 1442 | asection **secp; |
| 1443 | bfd_vma *valp; |
| 1444 | { |
| 1445 | if (! info->relocatable |
| 1446 | && (*namep)[0] == '_' && (*namep)[1] == 'S' |
| 1447 | && strcmp (*namep, "_SDA_BASE_") == 0 |
| 1448 | && is_elf_hash_table (info->hash)) |
| 1449 | { |
| 1450 | /* This is simpler than using _bfd_elf_create_linker_section |
| 1451 | (our needs are simpler than ppc's needs). Also |
| 1452 | _bfd_elf_create_linker_section currently has a bug where if a .sdata |
| 1453 | section already exists a new one is created that follows it which |
| 1454 | screws of _SDA_BASE_ address calcs because output_offset != 0. */ |
| 1455 | struct elf_link_hash_entry *h; |
| 1456 | struct bfd_link_hash_entry *bh; |
| 1457 | asection *s = bfd_get_section_by_name (abfd, ".sdata"); |
| 1458 | |
| 1459 | /* The following code was cobbled from elf32-ppc.c and elflink.c. */ |
| 1460 | |
| 1461 | if (s == NULL) |
| 1462 | { |
| 1463 | flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
| 1464 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); |
| 1465 | |
| 1466 | s = bfd_make_section_anyway (abfd, ".sdata"); |
| 1467 | if (s == NULL) |
| 1468 | return FALSE; |
| 1469 | bfd_set_section_flags (abfd, s, flags); |
| 1470 | bfd_set_section_alignment (abfd, s, 2); |
| 1471 | } |
| 1472 | |
| 1473 | bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", |
| 1474 | FALSE, FALSE, FALSE); |
| 1475 | |
| 1476 | if ((bh == NULL || bh->type == bfd_link_hash_undefined) |
| 1477 | && !(_bfd_generic_link_add_one_symbol (info, |
| 1478 | abfd, |
| 1479 | "_SDA_BASE_", |
| 1480 | BSF_GLOBAL, |
| 1481 | s, |
| 1482 | (bfd_vma) 32768, |
| 1483 | (const char *) NULL, |
| 1484 | FALSE, |
| 1485 | get_elf_backend_data (abfd)->collect, |
| 1486 | &bh))) |
| 1487 | return FALSE; |
| 1488 | h = (struct elf_link_hash_entry *) bh; |
| 1489 | h->type = STT_OBJECT; |
| 1490 | } |
| 1491 | |
| 1492 | switch (sym->st_shndx) |
| 1493 | { |
| 1494 | case SHN_M32R_SCOMMON: |
| 1495 | *secp = bfd_make_section_old_way (abfd, ".scommon"); |
| 1496 | (*secp)->flags |= SEC_IS_COMMON; |
| 1497 | *valp = sym->st_size; |
| 1498 | break; |
| 1499 | } |
| 1500 | |
| 1501 | return TRUE; |
| 1502 | } |
| 1503 | |
| 1504 | /* We have to figure out the SDA_BASE value, so that we can adjust the |
| 1505 | symbol value correctly. We look up the symbol _SDA_BASE_ in the output |
| 1506 | BFD. If we can't find it, we're stuck. We cache it in the ELF |
| 1507 | target data. We don't need to adjust the symbol value for an |
| 1508 | external symbol if we are producing relocatable output. */ |
| 1509 | |
| 1510 | static bfd_reloc_status_type |
| 1511 | m32r_elf_final_sda_base (output_bfd, info, error_message, psb) |
| 1512 | bfd *output_bfd; |
| 1513 | struct bfd_link_info *info; |
| 1514 | const char **error_message; |
| 1515 | bfd_vma *psb; |
| 1516 | { |
| 1517 | if (elf_gp (output_bfd) == 0) |
| 1518 | { |
| 1519 | struct bfd_link_hash_entry *h; |
| 1520 | |
| 1521 | h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE); |
| 1522 | if (h != (struct bfd_link_hash_entry *) NULL |
| 1523 | && h->type == bfd_link_hash_defined) |
| 1524 | elf_gp (output_bfd) = (h->u.def.value |
| 1525 | + h->u.def.section->output_section->vma |
| 1526 | + h->u.def.section->output_offset); |
| 1527 | else |
| 1528 | { |
| 1529 | /* Only get the error once. */ |
| 1530 | *psb = elf_gp (output_bfd) = 4; |
| 1531 | *error_message = |
| 1532 | (const char *) _("SDA relocation when _SDA_BASE_ not defined"); |
| 1533 | return bfd_reloc_dangerous; |
| 1534 | } |
| 1535 | } |
| 1536 | *psb = elf_gp (output_bfd); |
| 1537 | return bfd_reloc_ok; |
| 1538 | } |
| 1539 | \f |
| 1540 | /* Return size of a PLT entry. */ |
| 1541 | #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE |
| 1542 | |
| 1543 | /* The m32r linker needs to keep track of the number of relocs that it |
| 1544 | decides to copy in check_relocs for each symbol. This is so that |
| 1545 | it can discard PC relative relocs if it doesn't need them when |
| 1546 | linking with -Bsymbolic. We store the information in a field |
| 1547 | extending the regular ELF linker hash table. */ |
| 1548 | |
| 1549 | /* This structure keeps track of the number of PC relative relocs we |
| 1550 | have copied for a given symbol. */ |
| 1551 | |
| 1552 | struct elf_m32r_pcrel_relocs_copied |
| 1553 | { |
| 1554 | /* Next section. */ |
| 1555 | struct elf_m32r_pcrel_relocs_copied *next; |
| 1556 | /* A section in dynobj. */ |
| 1557 | asection *section; |
| 1558 | /* Number of relocs copied in this section. */ |
| 1559 | bfd_size_type count; |
| 1560 | }; |
| 1561 | |
| 1562 | /* The sh linker needs to keep track of the number of relocs that it |
| 1563 | decides to copy as dynamic relocs in check_relocs for each symbol. |
| 1564 | This is so that it can later discard them if they are found to be |
| 1565 | unnecessary. We store the information in a field extending the |
| 1566 | regular ELF linker hash table. */ |
| 1567 | |
| 1568 | struct elf_m32r_dyn_relocs |
| 1569 | { |
| 1570 | struct elf_m32r_dyn_relocs *next; |
| 1571 | |
| 1572 | /* The input section of the reloc. */ |
| 1573 | asection *sec; |
| 1574 | |
| 1575 | /* Total number of relocs copied for the input section. */ |
| 1576 | bfd_size_type count; |
| 1577 | |
| 1578 | /* Number of pc-relative relocs copied for the input section. */ |
| 1579 | bfd_size_type pc_count; |
| 1580 | }; |
| 1581 | |
| 1582 | |
| 1583 | /* m32r ELF linker hash entry. */ |
| 1584 | |
| 1585 | struct elf_m32r_link_hash_entry |
| 1586 | { |
| 1587 | struct elf_link_hash_entry root; |
| 1588 | |
| 1589 | /* Track dynamic relocs copied for this symbol. */ |
| 1590 | struct elf_m32r_dyn_relocs *dyn_relocs; |
| 1591 | |
| 1592 | // bfd_signed_vma gotplt_refcount; |
| 1593 | |
| 1594 | /* Number of PC relative relocs copied for this symbol. */ |
| 1595 | /* struct elf_m32r_pcrel_relocs_copied *pcrel_relocs_copied; FIXME */ |
| 1596 | }; |
| 1597 | |
| 1598 | /* m32r ELF linker hash table. */ |
| 1599 | |
| 1600 | struct elf_m32r_link_hash_table |
| 1601 | { |
| 1602 | struct elf_link_hash_table root; |
| 1603 | |
| 1604 | /* Short-cuts to get to dynamic linker sections. */ |
| 1605 | asection *sgot; |
| 1606 | asection *sgotplt; |
| 1607 | asection *srelgot; |
| 1608 | asection *splt; |
| 1609 | asection *srelplt; |
| 1610 | asection *sdynbss; |
| 1611 | asection *srelbss; |
| 1612 | |
| 1613 | /* Small local sym to section mapping cache. */ |
| 1614 | struct sym_sec_cache sym_sec; |
| 1615 | }; |
| 1616 | |
| 1617 | /* Traverse an m32r ELF linker hash table. */ |
| 1618 | |
| 1619 | #define m32r_elf_link_hash_traverse(table, func, info) \ |
| 1620 | (elf_link_hash_traverse \ |
| 1621 | (&(table)->root, \ |
| 1622 | (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \ |
| 1623 | (info))) |
| 1624 | |
| 1625 | /* Get the m32r ELF linker hash table from a link_info structure. */ |
| 1626 | |
| 1627 | |
| 1628 | #define m32r_elf_hash_table(p) \ |
| 1629 | ((struct elf_m32r_link_hash_table *) ((p)->hash)) |
| 1630 | |
| 1631 | /* Create an entry in an m32r ELF linker hash table. */ |
| 1632 | static struct bfd_hash_entry * |
| 1633 | m32r_elf_link_hash_newfunc (struct bfd_hash_entry *, struct bfd_hash_table *, |
| 1634 | const char * ); |
| 1635 | |
| 1636 | static struct bfd_hash_entry * |
| 1637 | m32r_elf_link_hash_newfunc (entry, table, string) |
| 1638 | struct bfd_hash_entry *entry; |
| 1639 | struct bfd_hash_table *table; |
| 1640 | const char *string; |
| 1641 | { |
| 1642 | struct elf_m32r_link_hash_entry *ret = |
| 1643 | (struct elf_m32r_link_hash_entry *) entry; |
| 1644 | |
| 1645 | /* Allocate the structure if it has not already been allocated by a |
| 1646 | subclass. */ |
| 1647 | if (ret == (struct elf_m32r_link_hash_entry *) NULL) |
| 1648 | ret = ((struct elf_m32r_link_hash_entry *) |
| 1649 | bfd_hash_allocate (table, |
| 1650 | sizeof (struct elf_m32r_link_hash_entry))); |
| 1651 | if (ret == (struct elf_m32r_link_hash_entry *) NULL) |
| 1652 | return (struct bfd_hash_entry *) ret; |
| 1653 | |
| 1654 | /* Call the allocation method of the superclass. */ |
| 1655 | ret = ((struct elf_m32r_link_hash_entry *) |
| 1656 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 1657 | table, string)); |
| 1658 | if (ret != (struct elf_m32r_link_hash_entry *) NULL) |
| 1659 | { |
| 1660 | struct elf_m32r_link_hash_entry *eh; |
| 1661 | |
| 1662 | eh = (struct elf_m32r_link_hash_entry *) ret; |
| 1663 | eh->dyn_relocs = NULL; |
| 1664 | // eh->gotplt_refcount = 0; |
| 1665 | /* eh->pcrel_relocs_copied = NULL; FIXME */ |
| 1666 | } |
| 1667 | |
| 1668 | return (struct bfd_hash_entry *) ret; |
| 1669 | } |
| 1670 | |
| 1671 | /* Create an m32r ELF linker hash table. */ |
| 1672 | static struct bfd_link_hash_table *m32r_elf_link_hash_table_create (bfd *); |
| 1673 | |
| 1674 | static struct bfd_link_hash_table * |
| 1675 | m32r_elf_link_hash_table_create (abfd) |
| 1676 | bfd *abfd; |
| 1677 | { |
| 1678 | struct elf_m32r_link_hash_table *ret; |
| 1679 | bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table); |
| 1680 | |
| 1681 | ret = (struct elf_m32r_link_hash_table *) bfd_malloc (amt); |
| 1682 | if (ret == (struct elf_m32r_link_hash_table *) NULL) |
| 1683 | return NULL; |
| 1684 | |
| 1685 | if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, |
| 1686 | m32r_elf_link_hash_newfunc)) |
| 1687 | { |
| 1688 | free (ret); |
| 1689 | return NULL; |
| 1690 | } |
| 1691 | |
| 1692 | ret->sgot = NULL; |
| 1693 | ret->sgotplt = NULL; |
| 1694 | ret->srelgot = NULL; |
| 1695 | ret->splt = NULL; |
| 1696 | ret->srelplt = NULL; |
| 1697 | ret->sdynbss = NULL; |
| 1698 | ret->srelbss = NULL; |
| 1699 | ret->sym_sec.abfd = NULL; |
| 1700 | |
| 1701 | return &ret->root.root; |
| 1702 | } |
| 1703 | |
| 1704 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up |
| 1705 | shortcuts to them in our hash table. */ |
| 1706 | static bfd_boolean create_got_section (bfd *, struct bfd_link_info *); |
| 1707 | |
| 1708 | static bfd_boolean |
| 1709 | create_got_section (dynobj, info) |
| 1710 | bfd *dynobj; |
| 1711 | struct bfd_link_info *info; |
| 1712 | { |
| 1713 | struct elf_m32r_link_hash_table *htab; |
| 1714 | |
| 1715 | if (! _bfd_elf_create_got_section (dynobj, info)) |
| 1716 | return FALSE; |
| 1717 | |
| 1718 | htab = m32r_elf_hash_table (info); |
| 1719 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); |
| 1720 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); |
| 1721 | if (! htab->sgot || ! htab->sgotplt) |
| 1722 | abort (); |
| 1723 | |
| 1724 | htab->srelgot = bfd_make_section (dynobj, ".rela.got"); |
| 1725 | if (htab->srelgot == NULL |
| 1726 | || ! bfd_set_section_flags (dynobj, htab->srelgot, |
| 1727 | (SEC_ALLOC |
| 1728 | | SEC_LOAD |
| 1729 | | SEC_HAS_CONTENTS |
| 1730 | | SEC_IN_MEMORY |
| 1731 | | SEC_LINKER_CREATED |
| 1732 | | SEC_READONLY)) |
| 1733 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) |
| 1734 | return FALSE; |
| 1735 | |
| 1736 | return TRUE; |
| 1737 | } |
| 1738 | |
| 1739 | /* Create dynamic sections when linking against a dynamic object. */ |
| 1740 | |
| 1741 | static bfd_boolean |
| 1742 | m32r_elf_create_dynamic_sections (abfd, info) |
| 1743 | bfd *abfd; |
| 1744 | struct bfd_link_info *info; |
| 1745 | { |
| 1746 | struct elf_m32r_link_hash_table *htab; |
| 1747 | flagword flags, pltflags; |
| 1748 | register asection *s; |
| 1749 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
| 1750 | int ptralign = 2; /* 32bit */ |
| 1751 | |
| 1752 | htab = m32r_elf_hash_table (info); |
| 1753 | |
| 1754 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and |
| 1755 | .rel[a].bss sections. */ |
| 1756 | |
| 1757 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
| 1758 | | SEC_LINKER_CREATED); |
| 1759 | |
| 1760 | pltflags = flags; |
| 1761 | pltflags |= SEC_CODE; |
| 1762 | if (bed->plt_not_loaded) |
| 1763 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); |
| 1764 | if (bed->plt_readonly) |
| 1765 | pltflags |= SEC_READONLY; |
| 1766 | |
| 1767 | s = bfd_make_section (abfd, ".plt"); |
| 1768 | htab->splt = s; |
| 1769 | if (s == NULL |
| 1770 | || ! bfd_set_section_flags (abfd, s, pltflags) |
| 1771 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) |
| 1772 | return FALSE; |
| 1773 | |
| 1774 | if (bed->want_plt_sym) |
| 1775 | { |
| 1776 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the |
| 1777 | .plt section. */ |
| 1778 | struct bfd_link_hash_entry *bh = NULL; |
| 1779 | struct elf_link_hash_entry *h; |
| 1780 | if (! (_bfd_generic_link_add_one_symbol |
| 1781 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, |
| 1782 | (bfd_vma) 0, (const char *) NULL, FALSE, |
| 1783 | get_elf_backend_data (abfd)->collect, &bh))) |
| 1784 | return FALSE; |
| 1785 | h = (struct elf_link_hash_entry *) bh; |
| 1786 | h->def_regular = 1; |
| 1787 | h->type = STT_OBJECT; |
| 1788 | |
| 1789 | if (info->shared |
| 1790 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 1791 | return FALSE; |
| 1792 | } |
| 1793 | |
| 1794 | s = bfd_make_section (abfd, |
| 1795 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt"); |
| 1796 | htab->srelplt = s; |
| 1797 | if (s == NULL |
| 1798 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) |
| 1799 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
| 1800 | return FALSE; |
| 1801 | |
| 1802 | if (htab->sgot == NULL |
| 1803 | && ! create_got_section (abfd, info)) |
| 1804 | return FALSE; |
| 1805 | |
| 1806 | { |
| 1807 | const char *secname; |
| 1808 | char *relname; |
| 1809 | flagword secflags; |
| 1810 | asection *sec; |
| 1811 | |
| 1812 | for (sec = abfd->sections; sec; sec = sec->next) |
| 1813 | { |
| 1814 | secflags = bfd_get_section_flags (abfd, sec); |
| 1815 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) |
| 1816 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) |
| 1817 | continue; |
| 1818 | secname = bfd_get_section_name (abfd, sec); |
| 1819 | relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6); |
| 1820 | strcpy (relname, ".rela"); |
| 1821 | strcat (relname, secname); |
| 1822 | if (bfd_get_section_by_name (abfd, secname)) |
| 1823 | continue; |
| 1824 | s = bfd_make_section (abfd, relname); |
| 1825 | if (s == NULL |
| 1826 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) |
| 1827 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
| 1828 | return FALSE; |
| 1829 | } |
| 1830 | } |
| 1831 | |
| 1832 | if (bed->want_dynbss) |
| 1833 | { |
| 1834 | /* The .dynbss section is a place to put symbols which are defined |
| 1835 | by dynamic objects, are referenced by regular objects, and are |
| 1836 | not functions. We must allocate space for them in the process |
| 1837 | image and use a R_*_COPY reloc to tell the dynamic linker to |
| 1838 | initialize them at run time. The linker script puts the .dynbss |
| 1839 | section into the .bss section of the final image. */ |
| 1840 | s = bfd_make_section (abfd, ".dynbss"); |
| 1841 | htab->sdynbss = s; |
| 1842 | if (s == NULL |
| 1843 | || ! bfd_set_section_flags (abfd, s, SEC_ALLOC)) |
| 1844 | return FALSE; |
| 1845 | /* The .rel[a].bss section holds copy relocs. This section is not |
| 1846 | normally needed. We need to create it here, though, so that the |
| 1847 | linker will map it to an output section. We can't just create it |
| 1848 | only if we need it, because we will not know whether we need it |
| 1849 | until we have seen all the input files, and the first time the |
| 1850 | main linker code calls BFD after examining all the input files |
| 1851 | (size_dynamic_sections) the input sections have already been |
| 1852 | mapped to the output sections. If the section turns out not to |
| 1853 | be needed, we can discard it later. We will never need this |
| 1854 | section when generating a shared object, since they do not use |
| 1855 | copy relocs. */ |
| 1856 | if (! info->shared) |
| 1857 | { |
| 1858 | s = bfd_make_section (abfd, |
| 1859 | (bed->default_use_rela_p |
| 1860 | ? ".rela.bss" : ".rel.bss")); |
| 1861 | htab->srelbss = s; |
| 1862 | if (s == NULL |
| 1863 | || ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY) |
| 1864 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
| 1865 | return FALSE; |
| 1866 | } |
| 1867 | } |
| 1868 | |
| 1869 | return TRUE; |
| 1870 | } |
| 1871 | |
| 1872 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 1873 | static void m32r_elf_copy_indirect_symbol (const struct elf_backend_data *, |
| 1874 | struct elf_link_hash_entry *, |
| 1875 | struct elf_link_hash_entry *); |
| 1876 | |
| 1877 | static void |
| 1878 | m32r_elf_copy_indirect_symbol (const struct elf_backend_data *bed, |
| 1879 | struct elf_link_hash_entry *dir, |
| 1880 | struct elf_link_hash_entry *ind) |
| 1881 | { |
| 1882 | struct elf_m32r_link_hash_entry *edir, *eind; |
| 1883 | |
| 1884 | edir = (struct elf_m32r_link_hash_entry *) dir; |
| 1885 | eind = (struct elf_m32r_link_hash_entry *) ind; |
| 1886 | |
| 1887 | if (eind->dyn_relocs != NULL) |
| 1888 | { |
| 1889 | if (edir->dyn_relocs != NULL) |
| 1890 | { |
| 1891 | struct elf_m32r_dyn_relocs **pp; |
| 1892 | struct elf_m32r_dyn_relocs *p; |
| 1893 | |
| 1894 | if (ind->root.type == bfd_link_hash_indirect) |
| 1895 | abort (); |
| 1896 | |
| 1897 | /* Add reloc counts against the weak sym to the strong sym |
| 1898 | list. Merge any entries against the same section. */ |
| 1899 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) |
| 1900 | { |
| 1901 | struct elf_m32r_dyn_relocs *q; |
| 1902 | |
| 1903 | for (q = edir->dyn_relocs; q != NULL; q = q->next) |
| 1904 | if (q->sec == p->sec) |
| 1905 | { |
| 1906 | q->pc_count += p->pc_count; |
| 1907 | q->count += p->count; |
| 1908 | *pp = p->next; |
| 1909 | break; |
| 1910 | } |
| 1911 | if (q == NULL) |
| 1912 | pp = &p->next; |
| 1913 | } |
| 1914 | *pp = edir->dyn_relocs; |
| 1915 | } |
| 1916 | |
| 1917 | edir->dyn_relocs = eind->dyn_relocs; |
| 1918 | eind->dyn_relocs = NULL; |
| 1919 | } |
| 1920 | |
| 1921 | // if (ind->root.type == bfd_link_hash_indirect |
| 1922 | // && dir->got.refcount <= 0) |
| 1923 | // { |
| 1924 | // edir->tls_type = eind->tls_type; |
| 1925 | // eind->tls_type = GOT_UNKNOWN; |
| 1926 | // } |
| 1927 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); |
| 1928 | } |
| 1929 | |
| 1930 | \f |
| 1931 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 1932 | regular object. The current definition is in some section of the |
| 1933 | dynamic object, but we're not including those sections. We have to |
| 1934 | change the definition to something the rest of the link can |
| 1935 | understand. */ |
| 1936 | |
| 1937 | static bfd_boolean |
| 1938 | m32r_elf_adjust_dynamic_symbol (info, h) |
| 1939 | struct bfd_link_info *info; |
| 1940 | struct elf_link_hash_entry *h; |
| 1941 | { |
| 1942 | struct elf_m32r_link_hash_table *htab; |
| 1943 | struct elf_m32r_link_hash_entry *eh; |
| 1944 | struct elf_m32r_dyn_relocs *p; |
| 1945 | bfd *dynobj; |
| 1946 | asection *s; |
| 1947 | unsigned int power_of_two; |
| 1948 | |
| 1949 | #ifdef DEBUG_PIC |
| 1950 | printf("m32r_elf_adjust_dynamic_symbol()\n"); |
| 1951 | #endif |
| 1952 | |
| 1953 | dynobj = elf_hash_table (info)->dynobj; |
| 1954 | |
| 1955 | /* Make sure we know what is going on here. */ |
| 1956 | BFD_ASSERT (dynobj != NULL |
| 1957 | && (h->needs_plt |
| 1958 | || h->u.weakdef != NULL |
| 1959 | || (h->def_dynamic |
| 1960 | && h->ref_regular |
| 1961 | && !h->def_regular))); |
| 1962 | |
| 1963 | |
| 1964 | /* If this is a function, put it in the procedure linkage table. We |
| 1965 | will fill in the contents of the procedure linkage table later, |
| 1966 | when we know the address of the .got section. */ |
| 1967 | if (h->type == STT_FUNC |
| 1968 | || h->needs_plt) |
| 1969 | { |
| 1970 | if (! info->shared |
| 1971 | && !h->def_dynamic |
| 1972 | && !h->ref_dynamic |
| 1973 | && h->root.type != bfd_link_hash_undefweak |
| 1974 | && h->root.type != bfd_link_hash_undefined) |
| 1975 | { |
| 1976 | /* This case can occur if we saw a PLT reloc in an input |
| 1977 | file, but the symbol was never referred to by a dynamic |
| 1978 | object. In such a case, we don't actually need to build |
| 1979 | a procedure linkage table, and we can just do a PCREL |
| 1980 | reloc instead. */ |
| 1981 | h->plt.offset = (bfd_vma) -1; |
| 1982 | h->needs_plt = 0; |
| 1983 | } |
| 1984 | |
| 1985 | return TRUE; |
| 1986 | } |
| 1987 | else |
| 1988 | h->plt.offset = (bfd_vma) -1; |
| 1989 | |
| 1990 | /* If this is a weak symbol, and there is a real definition, the |
| 1991 | processor independent code will have arranged for us to see the |
| 1992 | real definition first, and we can just use the same value. */ |
| 1993 | if (h->u.weakdef != NULL) |
| 1994 | { |
| 1995 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 1996 | || h->u.weakdef->root.type == bfd_link_hash_defweak); |
| 1997 | h->root.u.def.section = h->u.weakdef->root.u.def.section; |
| 1998 | h->root.u.def.value = h->u.weakdef->root.u.def.value; |
| 1999 | return TRUE; |
| 2000 | } |
| 2001 | |
| 2002 | /* This is a reference to a symbol defined by a dynamic object which |
| 2003 | is not a function. */ |
| 2004 | |
| 2005 | /* If we are creating a shared library, we must presume that the |
| 2006 | only references to the symbol are via the global offset table. |
| 2007 | For such cases we need not do anything here; the relocations will |
| 2008 | be handled correctly by relocate_section. */ |
| 2009 | if (info->shared) |
| 2010 | return TRUE; |
| 2011 | |
| 2012 | /* If there are no references to this symbol that do not use the |
| 2013 | GOT, we don't need to generate a copy reloc. */ |
| 2014 | if (!h->non_got_ref) |
| 2015 | return TRUE; |
| 2016 | |
| 2017 | /* If -z nocopyreloc was given, we won't generate them either. */ |
| 2018 | if (info->nocopyreloc) |
| 2019 | { |
| 2020 | h->non_got_ref = 0; |
| 2021 | return TRUE; |
| 2022 | } |
| 2023 | |
| 2024 | eh = (struct elf_m32r_link_hash_entry *) h; |
| 2025 | for (p = eh->dyn_relocs; p != NULL; p = p->next) |
| 2026 | { |
| 2027 | s = p->sec->output_section; |
| 2028 | if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0) |
| 2029 | break; |
| 2030 | } |
| 2031 | |
| 2032 | /* If we didn't find any dynamic relocs in sections which needs the |
| 2033 | copy reloc, then we'll be keeping the dynamic relocs and avoiding |
| 2034 | the copy reloc. */ |
| 2035 | if (p == NULL) |
| 2036 | { |
| 2037 | h->non_got_ref = 0; |
| 2038 | return TRUE; |
| 2039 | } |
| 2040 | |
| 2041 | /* We must allocate the symbol in our .dynbss section, which will |
| 2042 | become part of the .bss section of the executable. There will be |
| 2043 | an entry for this symbol in the .dynsym section. The dynamic |
| 2044 | object will contain position independent code, so all references |
| 2045 | from the dynamic object to this symbol will go through the global |
| 2046 | offset table. The dynamic linker will use the .dynsym entry to |
| 2047 | determine the address it must put in the global offset table, so |
| 2048 | both the dynamic object and the regular object will refer to the |
| 2049 | same memory location for the variable. */ |
| 2050 | |
| 2051 | htab = m32r_elf_hash_table (info); |
| 2052 | s = htab->sdynbss; |
| 2053 | BFD_ASSERT (s != NULL); |
| 2054 | |
| 2055 | /* We must generate a R_M32R_COPY reloc to tell the dynamic linker |
| 2056 | to copy the initial value out of the dynamic object and into the |
| 2057 | runtime process image. We need to remember the offset into the |
| 2058 | .rela.bss section we are going to use. */ |
| 2059 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
| 2060 | { |
| 2061 | asection *srel; |
| 2062 | |
| 2063 | srel = htab->srelbss; |
| 2064 | BFD_ASSERT (srel != NULL); |
| 2065 | srel->size += sizeof (Elf32_External_Rela); |
| 2066 | h->needs_copy = 1; |
| 2067 | } |
| 2068 | |
| 2069 | /* We need to figure out the alignment required for this symbol. I |
| 2070 | have no idea how ELF linkers handle this. */ |
| 2071 | power_of_two = bfd_log2 (h->size); |
| 2072 | if (power_of_two > 3) |
| 2073 | power_of_two = 3; |
| 2074 | |
| 2075 | /* Apply the required alignment. */ |
| 2076 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
| 2077 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
| 2078 | { |
| 2079 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) |
| 2080 | return FALSE; |
| 2081 | } |
| 2082 | |
| 2083 | /* Define the symbol as being at this point in the section. */ |
| 2084 | h->root.u.def.section = s; |
| 2085 | h->root.u.def.value = s->size; |
| 2086 | |
| 2087 | /* Increment the section size to make room for the symbol. */ |
| 2088 | s->size += h->size; |
| 2089 | |
| 2090 | return TRUE; |
| 2091 | } |
| 2092 | |
| 2093 | /* Allocate space in .plt, .got and associated reloc sections for |
| 2094 | dynamic relocs. */ |
| 2095 | |
| 2096 | static bfd_boolean |
| 2097 | allocate_dynrelocs (h, inf) |
| 2098 | struct elf_link_hash_entry *h; |
| 2099 | PTR inf; |
| 2100 | { |
| 2101 | struct bfd_link_info *info; |
| 2102 | struct elf_m32r_link_hash_table *htab; |
| 2103 | struct elf_m32r_link_hash_entry *eh; |
| 2104 | struct elf_m32r_dyn_relocs *p; |
| 2105 | |
| 2106 | if (h->root.type == bfd_link_hash_indirect) |
| 2107 | return TRUE; |
| 2108 | |
| 2109 | if (h->root.type == bfd_link_hash_warning) |
| 2110 | /* When warning symbols are created, they **replace** the "real" |
| 2111 | entry in the hash table, thus we never get to see the real |
| 2112 | symbol in a hash traversal. So look at it now. */ |
| 2113 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2114 | |
| 2115 | info = (struct bfd_link_info *) inf; |
| 2116 | htab = m32r_elf_hash_table (info); |
| 2117 | |
| 2118 | eh = (struct elf_m32r_link_hash_entry *) h; |
| 2119 | // if ((h->got.refcount > 0 |
| 2120 | // || h->forced_local) |
| 2121 | // && eh->gotplt_refcount > 0) |
| 2122 | // { |
| 2123 | // /* The symbol has been forced local, or we have some direct got refs, |
| 2124 | // so treat all the gotplt refs as got refs. */ |
| 2125 | // h->got.refcount += eh->gotplt_refcount; |
| 2126 | // if (h->plt.refcount >= eh->gotplt_refcount) |
| 2127 | // h->plt.refcount -= eh->gotplt_refcount; |
| 2128 | // } |
| 2129 | |
| 2130 | if (htab->root.dynamic_sections_created |
| 2131 | && h->plt.refcount > 0) |
| 2132 | { |
| 2133 | /* Make sure this symbol is output as a dynamic symbol. |
| 2134 | Undefined weak syms won't yet be marked as dynamic. */ |
| 2135 | if (h->dynindx == -1 |
| 2136 | && !h->forced_local) |
| 2137 | { |
| 2138 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2139 | return FALSE; |
| 2140 | } |
| 2141 | |
| 2142 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
| 2143 | { |
| 2144 | asection *s = htab->splt; |
| 2145 | |
| 2146 | /* If this is the first .plt entry, make room for the special |
| 2147 | first entry. */ |
| 2148 | if (s->size == 0) |
| 2149 | s->size += PLT_ENTRY_SIZE; |
| 2150 | |
| 2151 | h->plt.offset = s->size; |
| 2152 | |
| 2153 | /* If this symbol is not defined in a regular file, and we are |
| 2154 | not generating a shared library, then set the symbol to this |
| 2155 | location in the .plt. This is required to make function |
| 2156 | pointers compare as equal between the normal executable and |
| 2157 | the shared library. */ |
| 2158 | if (! info->shared |
| 2159 | && !h->def_regular) |
| 2160 | { |
| 2161 | h->root.u.def.section = s; |
| 2162 | h->root.u.def.value = h->plt.offset; |
| 2163 | } |
| 2164 | |
| 2165 | /* Make room for this entry. */ |
| 2166 | s->size += PLT_ENTRY_SIZE; |
| 2167 | |
| 2168 | /* We also need to make an entry in the .got.plt section, which |
| 2169 | will be placed in the .got section by the linker script. */ |
| 2170 | htab->sgotplt->size += 4; |
| 2171 | |
| 2172 | /* We also need to make an entry in the .rel.plt section. */ |
| 2173 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
| 2174 | } |
| 2175 | else |
| 2176 | { |
| 2177 | h->plt.offset = (bfd_vma) -1; |
| 2178 | h->needs_plt = 0; |
| 2179 | } |
| 2180 | } |
| 2181 | else |
| 2182 | { |
| 2183 | h->plt.offset = (bfd_vma) -1; |
| 2184 | h->needs_plt = 0; |
| 2185 | } |
| 2186 | |
| 2187 | if (h->got.refcount > 0) |
| 2188 | { |
| 2189 | asection *s; |
| 2190 | bfd_boolean dyn; |
| 2191 | |
| 2192 | /* Make sure this symbol is output as a dynamic symbol. |
| 2193 | Undefined weak syms won't yet be marked as dynamic. */ |
| 2194 | if (h->dynindx == -1 |
| 2195 | && !h->forced_local) |
| 2196 | { |
| 2197 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2198 | return FALSE; |
| 2199 | } |
| 2200 | |
| 2201 | s = htab->sgot; |
| 2202 | |
| 2203 | h->got.offset = s->size; |
| 2204 | s->size += 4; |
| 2205 | dyn = htab->root.dynamic_sections_created; |
| 2206 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)) |
| 2207 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
| 2208 | } |
| 2209 | else |
| 2210 | h->got.offset = (bfd_vma) -1; |
| 2211 | |
| 2212 | if (eh->dyn_relocs == NULL) |
| 2213 | return TRUE; |
| 2214 | |
| 2215 | /* In the shared -Bsymbolic case, discard space allocated for |
| 2216 | dynamic pc-relative relocs against symbols which turn out to be |
| 2217 | defined in regular objects. For the normal shared case, discard |
| 2218 | space for pc-relative relocs that have become local due to symbol |
| 2219 | visibility changes. */ |
| 2220 | |
| 2221 | if (info->shared) |
| 2222 | { |
| 2223 | if (h->def_regular |
| 2224 | && (h->forced_local |
| 2225 | || info->symbolic)) |
| 2226 | { |
| 2227 | struct elf_m32r_dyn_relocs **pp; |
| 2228 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 2229 | { |
| 2230 | p->count -= p->pc_count; |
| 2231 | p->pc_count = 0; |
| 2232 | if (p->count == 0) |
| 2233 | *pp = p->next; |
| 2234 | else |
| 2235 | pp = &p->next; |
| 2236 | } |
| 2237 | } |
| 2238 | } |
| 2239 | else |
| 2240 | { |
| 2241 | /* For the non-shared case, discard space for relocs against |
| 2242 | symbols which turn out to need copy relocs or are not |
| 2243 | dynamic. */ |
| 2244 | |
| 2245 | if (!h->non_got_ref |
| 2246 | && ((h->def_dynamic |
| 2247 | && !h->def_regular) |
| 2248 | || (htab->root.dynamic_sections_created |
| 2249 | && (h->root.type == bfd_link_hash_undefweak |
| 2250 | || h->root.type == bfd_link_hash_undefined)))) |
| 2251 | { |
| 2252 | /* Make sure this symbol is output as a dynamic symbol. |
| 2253 | Undefined weak syms won't yet be marked as dynamic. */ |
| 2254 | if (h->dynindx == -1 |
| 2255 | && !h->forced_local) |
| 2256 | { |
| 2257 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 2258 | return FALSE; |
| 2259 | } |
| 2260 | |
| 2261 | /* If that succeeded, we know we'll be keeping all the |
| 2262 | relocs. */ |
| 2263 | if (h->dynindx != -1) |
| 2264 | goto keep; |
| 2265 | } |
| 2266 | |
| 2267 | eh->dyn_relocs = NULL; |
| 2268 | |
| 2269 | keep: ; |
| 2270 | } |
| 2271 | |
| 2272 | /* Finally, allocate space. */ |
| 2273 | for (p = eh->dyn_relocs; p != NULL; p = p->next) |
| 2274 | { |
| 2275 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
| 2276 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
| 2277 | } |
| 2278 | |
| 2279 | return TRUE; |
| 2280 | } |
| 2281 | /* Find any dynamic relocs that apply to read-only sections. */ |
| 2282 | |
| 2283 | static bfd_boolean |
| 2284 | readonly_dynrelocs (h, inf) |
| 2285 | struct elf_link_hash_entry *h; |
| 2286 | PTR inf; |
| 2287 | { |
| 2288 | struct elf_m32r_link_hash_entry *eh; |
| 2289 | struct elf_m32r_dyn_relocs *p; |
| 2290 | |
| 2291 | if (h->root.type == bfd_link_hash_warning) |
| 2292 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2293 | |
| 2294 | eh = (struct elf_m32r_link_hash_entry *) h; |
| 2295 | for (p = eh->dyn_relocs; p != NULL; p = p->next) |
| 2296 | { |
| 2297 | asection *s = p->sec->output_section; |
| 2298 | |
| 2299 | if (s != NULL && (s->flags & SEC_READONLY) != 0) |
| 2300 | { |
| 2301 | struct bfd_link_info *info = (struct bfd_link_info *) inf; |
| 2302 | |
| 2303 | info->flags |= DF_TEXTREL; |
| 2304 | |
| 2305 | /* Not an error, just cut short the traversal. */ |
| 2306 | return FALSE; |
| 2307 | } |
| 2308 | } |
| 2309 | return TRUE; |
| 2310 | } |
| 2311 | |
| 2312 | /* Set the sizes of the dynamic sections. */ |
| 2313 | |
| 2314 | static bfd_boolean |
| 2315 | m32r_elf_size_dynamic_sections (output_bfd, info) |
| 2316 | bfd *output_bfd ATTRIBUTE_UNUSED; |
| 2317 | struct bfd_link_info *info; |
| 2318 | { |
| 2319 | struct elf_m32r_link_hash_table *htab; |
| 2320 | bfd *dynobj; |
| 2321 | asection *s; |
| 2322 | bfd_boolean relocs; |
| 2323 | bfd *ibfd; |
| 2324 | |
| 2325 | #ifdef DEBUG_PIC |
| 2326 | printf("m32r_elf_size_dynamic_sections()\n"); |
| 2327 | #endif |
| 2328 | |
| 2329 | htab = m32r_elf_hash_table (info); |
| 2330 | dynobj = htab->root.dynobj; |
| 2331 | BFD_ASSERT (dynobj != NULL); |
| 2332 | |
| 2333 | if (htab->root.dynamic_sections_created) |
| 2334 | { |
| 2335 | /* Set the contents of the .interp section to the interpreter. */ |
| 2336 | if (! info->shared) |
| 2337 | { |
| 2338 | s = bfd_get_section_by_name (dynobj, ".interp"); |
| 2339 | BFD_ASSERT (s != NULL); |
| 2340 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 2341 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 2342 | } |
| 2343 | } |
| 2344 | |
| 2345 | /* Set up .got offsets for local syms, and space for local dynamic |
| 2346 | relocs. */ |
| 2347 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
| 2348 | { |
| 2349 | bfd_signed_vma *local_got; |
| 2350 | bfd_signed_vma *end_local_got; |
| 2351 | bfd_size_type locsymcount; |
| 2352 | Elf_Internal_Shdr *symtab_hdr; |
| 2353 | asection *srel; |
| 2354 | |
| 2355 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
| 2356 | continue; |
| 2357 | |
| 2358 | for (s = ibfd->sections; s != NULL; s = s->next) |
| 2359 | { |
| 2360 | struct elf_m32r_dyn_relocs *p; |
| 2361 | |
| 2362 | for (p = ((struct elf_m32r_dyn_relocs *) |
| 2363 | elf_section_data (s)->local_dynrel); |
| 2364 | p != NULL; |
| 2365 | p = p->next) |
| 2366 | { |
| 2367 | if (! bfd_is_abs_section (p->sec) |
| 2368 | && bfd_is_abs_section (p->sec->output_section)) |
| 2369 | { |
| 2370 | /* Input section has been discarded, either because |
| 2371 | it is a copy of a linkonce section or due to |
| 2372 | linker script /DISCARD/, so we'll be discarding |
| 2373 | the relocs too. */ |
| 2374 | } |
| 2375 | else if (p->count != 0) |
| 2376 | { |
| 2377 | srel = elf_section_data (p->sec)->sreloc; |
| 2378 | srel->size += p->count * sizeof (Elf32_External_Rela); |
| 2379 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 2380 | info->flags |= DF_TEXTREL; |
| 2381 | } |
| 2382 | } |
| 2383 | } |
| 2384 | |
| 2385 | local_got = elf_local_got_refcounts (ibfd); |
| 2386 | if (!local_got) |
| 2387 | continue; |
| 2388 | |
| 2389 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
| 2390 | locsymcount = symtab_hdr->sh_info; |
| 2391 | end_local_got = local_got + locsymcount; |
| 2392 | s = htab->sgot; |
| 2393 | srel = htab->srelgot; |
| 2394 | for (; local_got < end_local_got; ++local_got) |
| 2395 | { |
| 2396 | if (*local_got > 0) |
| 2397 | { |
| 2398 | *local_got = s->size; |
| 2399 | s->size += 4; |
| 2400 | if (info->shared) |
| 2401 | srel->size += sizeof (Elf32_External_Rela); |
| 2402 | } |
| 2403 | else |
| 2404 | *local_got = (bfd_vma) -1; |
| 2405 | } |
| 2406 | } |
| 2407 | |
| 2408 | /* Allocate global sym .plt and .got entries, and space for global |
| 2409 | sym dynamic relocs. */ |
| 2410 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, (PTR) info); |
| 2411 | |
| 2412 | /* We now have determined the sizes of the various dynamic sections. |
| 2413 | Allocate memory for them. */ |
| 2414 | relocs = FALSE; |
| 2415 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 2416 | { |
| 2417 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
| 2418 | continue; |
| 2419 | |
| 2420 | if (s == htab->splt |
| 2421 | || s == htab->sgot |
| 2422 | || s == htab->sgotplt) |
| 2423 | { |
| 2424 | /* Strip this section if we don't need it; see the |
| 2425 | comment below. */ |
| 2426 | } |
| 2427 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
| 2428 | { |
| 2429 | if (s->size != 0 && s != htab->srelplt) |
| 2430 | relocs = TRUE; |
| 2431 | |
| 2432 | /* We use the reloc_count field as a counter if we need |
| 2433 | to copy relocs into the output file. */ |
| 2434 | s->reloc_count = 0; |
| 2435 | } |
| 2436 | else |
| 2437 | { |
| 2438 | /* It's not one of our sections, so don't allocate space. */ |
| 2439 | continue; |
| 2440 | } |
| 2441 | |
| 2442 | if (s->size == 0) |
| 2443 | { |
| 2444 | /* If we don't need this section, strip it from the |
| 2445 | output file. This is mostly to handle .rela.bss and |
| 2446 | .rela.plt. We must create both sections in |
| 2447 | create_dynamic_sections, because they must be created |
| 2448 | before the linker maps input sections to output |
| 2449 | sections. The linker does that before |
| 2450 | adjust_dynamic_symbol is called, and it is that |
| 2451 | function which decides whether anything needs to go |
| 2452 | into these sections. */ |
| 2453 | _bfd_strip_section_from_output (info, s); |
| 2454 | continue; |
| 2455 | } |
| 2456 | |
| 2457 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 2458 | here in case unused entries are not reclaimed before the |
| 2459 | section's contents are written out. This should not happen, |
| 2460 | but this way if it does, we get a R_M32R_NONE reloc instead |
| 2461 | of garbage. */ |
| 2462 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
| 2463 | if (s->contents == NULL) |
| 2464 | return FALSE; |
| 2465 | } |
| 2466 | |
| 2467 | if (htab->root.dynamic_sections_created) |
| 2468 | { |
| 2469 | /* Add some entries to the .dynamic section. We fill in the |
| 2470 | values later, in m32r_elf_finish_dynamic_sections, but we |
| 2471 | must add the entries now so that we get the correct size for |
| 2472 | the .dynamic section. The DT_DEBUG entry is filled in by the |
| 2473 | dynamic linker and used by the debugger. */ |
| 2474 | #define add_dynamic_entry(TAG, VAL) \ |
| 2475 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| 2476 | |
| 2477 | if (! info->shared) |
| 2478 | { |
| 2479 | if (! add_dynamic_entry (DT_DEBUG, 0)) |
| 2480 | return FALSE; |
| 2481 | } |
| 2482 | |
| 2483 | if (htab->splt->size != 0) |
| 2484 | { |
| 2485 | if (! add_dynamic_entry (DT_PLTGOT, 0) |
| 2486 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) |
| 2487 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) |
| 2488 | || ! add_dynamic_entry (DT_JMPREL, 0)) |
| 2489 | return FALSE; |
| 2490 | } |
| 2491 | |
| 2492 | if (relocs) |
| 2493 | { |
| 2494 | if (! add_dynamic_entry (DT_RELA, 0) |
| 2495 | || ! add_dynamic_entry (DT_RELASZ, 0) |
| 2496 | || ! add_dynamic_entry (DT_RELAENT, |
| 2497 | sizeof (Elf32_External_Rela))) |
| 2498 | return FALSE; |
| 2499 | |
| 2500 | /* If any dynamic relocs apply to a read-only section, |
| 2501 | then we need a DT_TEXTREL entry. */ |
| 2502 | if ((info->flags & DF_TEXTREL) == 0) |
| 2503 | elf_link_hash_traverse (&htab->root, readonly_dynrelocs, |
| 2504 | (PTR) info); |
| 2505 | |
| 2506 | if ((info->flags & DF_TEXTREL) != 0) |
| 2507 | { |
| 2508 | if (! add_dynamic_entry (DT_TEXTREL, 0)) |
| 2509 | return FALSE; |
| 2510 | } |
| 2511 | } |
| 2512 | } |
| 2513 | #undef add_dynamic_entry |
| 2514 | |
| 2515 | return TRUE; |
| 2516 | } |
| 2517 | /* Relocate an M32R/D ELF section. |
| 2518 | There is some attempt to make this function usable for many architectures, |
| 2519 | both for RELA and REL type relocs, if only to serve as a learning tool. |
| 2520 | |
| 2521 | The RELOCATE_SECTION function is called by the new ELF backend linker |
| 2522 | to handle the relocations for a section. |
| 2523 | |
| 2524 | The relocs are always passed as Rela structures; if the section |
| 2525 | actually uses Rel structures, the r_addend field will always be |
| 2526 | zero. |
| 2527 | |
| 2528 | This function is responsible for adjust the section contents as |
| 2529 | necessary, and (if using Rela relocs and generating a |
| 2530 | relocatable output file) adjusting the reloc addend as |
| 2531 | necessary. |
| 2532 | |
| 2533 | This function does not have to worry about setting the reloc |
| 2534 | address or the reloc symbol index. |
| 2535 | |
| 2536 | LOCAL_SYMS is a pointer to the swapped in local symbols. |
| 2537 | |
| 2538 | LOCAL_SECTIONS is an array giving the section in the input file |
| 2539 | corresponding to the st_shndx field of each local symbol. |
| 2540 | |
| 2541 | The global hash table entry for the global symbols can be found |
| 2542 | via elf_sym_hashes (input_bfd). |
| 2543 | |
| 2544 | When generating relocatable output, this function must handle |
| 2545 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 2546 | going to be the section symbol corresponding to the output |
| 2547 | section, which means that the addend must be adjusted |
| 2548 | accordingly. */ |
| 2549 | |
| 2550 | static bfd_boolean |
| 2551 | m32r_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
| 2552 | contents, relocs, local_syms, local_sections) |
| 2553 | bfd *output_bfd ATTRIBUTE_UNUSED; |
| 2554 | struct bfd_link_info *info; |
| 2555 | bfd *input_bfd; |
| 2556 | asection *input_section; |
| 2557 | bfd_byte *contents; |
| 2558 | Elf_Internal_Rela *relocs; |
| 2559 | Elf_Internal_Sym *local_syms; |
| 2560 | asection **local_sections; |
| 2561 | { |
| 2562 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
| 2563 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
| 2564 | Elf_Internal_Rela *rel, *relend; |
| 2565 | /* Assume success. */ |
| 2566 | bfd_boolean ret = TRUE; |
| 2567 | |
| 2568 | struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info); |
| 2569 | bfd *dynobj; |
| 2570 | bfd_vma *local_got_offsets; |
| 2571 | asection *sgot, *splt, *sreloc; |
| 2572 | bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section); |
| 2573 | |
| 2574 | dynobj = htab->root.dynobj; |
| 2575 | local_got_offsets = elf_local_got_offsets (input_bfd); |
| 2576 | |
| 2577 | sgot = htab->sgot; |
| 2578 | splt = htab->splt; |
| 2579 | sreloc = NULL; |
| 2580 | |
| 2581 | rel = relocs; |
| 2582 | relend = relocs + input_section->reloc_count; |
| 2583 | for (; rel < relend; rel++) |
| 2584 | { |
| 2585 | int r_type; |
| 2586 | reloc_howto_type *howto; |
| 2587 | unsigned long r_symndx; |
| 2588 | struct elf_link_hash_entry *h; |
| 2589 | /* We can't modify r_addend here as elf_link_input_bfd has an assert to |
| 2590 | ensure it's zero (we use REL relocs, not RELA). Therefore this |
| 2591 | should be assigning zero to `addend', but for clarity we use |
| 2592 | `r_addend'. */ |
| 2593 | bfd_vma addend = rel->r_addend; |
| 2594 | bfd_vma offset = rel->r_offset; |
| 2595 | Elf_Internal_Sym *sym; |
| 2596 | asection *sec; |
| 2597 | const char *sym_name; |
| 2598 | bfd_reloc_status_type r; |
| 2599 | const char *errmsg = NULL; |
| 2600 | bfd_boolean use_rel = FALSE; |
| 2601 | |
| 2602 | h = NULL; |
| 2603 | r_type = ELF32_R_TYPE (rel->r_info); |
| 2604 | if (r_type < 0 || r_type >= (int) R_M32R_max) |
| 2605 | { |
| 2606 | (*_bfd_error_handler) (_("%B: unknown relocation type %d"), |
| 2607 | input_bfd, |
| 2608 | (int) r_type); |
| 2609 | bfd_set_error (bfd_error_bad_value); |
| 2610 | ret = FALSE; |
| 2611 | continue; |
| 2612 | } |
| 2613 | |
| 2614 | if (r_type == R_M32R_GNU_VTENTRY |
| 2615 | || r_type == R_M32R_GNU_VTINHERIT |
| 2616 | || r_type == R_M32R_NONE |
| 2617 | || r_type == R_M32R_RELA_GNU_VTENTRY |
| 2618 | || r_type == R_M32R_RELA_GNU_VTINHERIT) |
| 2619 | continue; |
| 2620 | |
| 2621 | if (r_type <= R_M32R_GNU_VTENTRY) |
| 2622 | use_rel = TRUE; |
| 2623 | |
| 2624 | howto = m32r_elf_howto_table + r_type; |
| 2625 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 2626 | |
| 2627 | if (info->relocatable && use_rel) |
| 2628 | { |
| 2629 | /* This is a relocatable link. We don't have to change |
| 2630 | anything, unless the reloc is against a section symbol, |
| 2631 | in which case we have to adjust according to where the |
| 2632 | section symbol winds up in the output section. */ |
| 2633 | sec = NULL; |
| 2634 | if (r_symndx >= symtab_hdr->sh_info) |
| 2635 | { |
| 2636 | /* External symbol. */ |
| 2637 | continue; |
| 2638 | } |
| 2639 | |
| 2640 | /* Local symbol. */ |
| 2641 | sym = local_syms + r_symndx; |
| 2642 | sym_name = "<local symbol>"; |
| 2643 | /* STT_SECTION: symbol is associated with a section. */ |
| 2644 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) |
| 2645 | { |
| 2646 | /* Symbol isn't associated with a section. Nothing to do. */ |
| 2647 | continue; |
| 2648 | } |
| 2649 | |
| 2650 | sec = local_sections[r_symndx]; |
| 2651 | addend += sec->output_offset + sym->st_value; |
| 2652 | |
| 2653 | /* If partial_inplace, we need to store any additional addend |
| 2654 | back in the section. */ |
| 2655 | if (! howto->partial_inplace) |
| 2656 | continue; |
| 2657 | /* ??? Here is a nice place to call a special_function |
| 2658 | like handler. */ |
| 2659 | if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO) |
| 2660 | r = _bfd_relocate_contents (howto, input_bfd, |
| 2661 | addend, contents + offset); |
| 2662 | else |
| 2663 | { |
| 2664 | Elf_Internal_Rela *lorel; |
| 2665 | |
| 2666 | /* We allow an arbitrary number of HI16 relocs before the |
| 2667 | LO16 reloc. This permits gcc to emit the HI and LO relocs |
| 2668 | itself. */ |
| 2669 | for (lorel = rel + 1; |
| 2670 | (lorel < relend |
| 2671 | && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO |
| 2672 | || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO)); |
| 2673 | lorel++) |
| 2674 | continue; |
| 2675 | if (lorel < relend |
| 2676 | && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16) |
| 2677 | { |
| 2678 | m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel, |
| 2679 | contents, addend); |
| 2680 | r = bfd_reloc_ok; |
| 2681 | } |
| 2682 | else |
| 2683 | r = _bfd_relocate_contents (howto, input_bfd, |
| 2684 | addend, contents + offset); |
| 2685 | } |
| 2686 | } |
| 2687 | else |
| 2688 | { |
| 2689 | bfd_vma relocation; |
| 2690 | |
| 2691 | /* This is a final link. */ |
| 2692 | sym = NULL; |
| 2693 | sec = NULL; |
| 2694 | h = NULL; |
| 2695 | |
| 2696 | if (r_symndx < symtab_hdr->sh_info) |
| 2697 | { |
| 2698 | /* Local symbol. */ |
| 2699 | sym = local_syms + r_symndx; |
| 2700 | sec = local_sections[r_symndx]; |
| 2701 | sym_name = "<local symbol>"; |
| 2702 | |
| 2703 | if (!use_rel) |
| 2704 | { |
| 2705 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 2706 | addend = rel->r_addend; |
| 2707 | |
| 2708 | if (info->relocatable) |
| 2709 | { |
| 2710 | /* This is a relocatable link. We don't have to change |
| 2711 | anything, unless the reloc is against a section symbol, |
| 2712 | in which case we have to adjust according to where the |
| 2713 | section symbol winds up in the output section. */ |
| 2714 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
| 2715 | rel->r_addend += sec->output_offset + sym->st_value; |
| 2716 | |
| 2717 | continue; |
| 2718 | } |
| 2719 | } |
| 2720 | else |
| 2721 | { |
| 2722 | relocation = (sec->output_section->vma |
| 2723 | + sec->output_offset |
| 2724 | + sym->st_value); |
| 2725 | } |
| 2726 | } |
| 2727 | else |
| 2728 | { |
| 2729 | /* External symbol. */ |
| 2730 | if (info->relocatable && !use_rel) |
| 2731 | continue; |
| 2732 | |
| 2733 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 2734 | while (h->root.type == bfd_link_hash_indirect |
| 2735 | || h->root.type == bfd_link_hash_warning) |
| 2736 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| 2737 | sym_name = h->root.root.string; |
| 2738 | |
| 2739 | if (h->root.type == bfd_link_hash_defined |
| 2740 | || h->root.type == bfd_link_hash_defweak) |
| 2741 | { |
| 2742 | bfd_boolean dyn; |
| 2743 | sec = h->root.u.def.section; |
| 2744 | |
| 2745 | dyn = htab->root.dynamic_sections_created; |
| 2746 | sec = h->root.u.def.section; |
| 2747 | if (r_type == R_M32R_GOTPC24 |
| 2748 | || (r_type == R_M32R_GOTPC_HI_ULO |
| 2749 | || r_type == R_M32R_GOTPC_HI_SLO |
| 2750 | || r_type == R_M32R_GOTPC_LO) |
| 2751 | || (r_type == R_M32R_26_PLTREL |
| 2752 | && h->plt.offset != (bfd_vma) -1) |
| 2753 | || ((r_type == R_M32R_GOT24 |
| 2754 | || r_type == R_M32R_GOT16_HI_ULO |
| 2755 | || r_type == R_M32R_GOT16_HI_SLO |
| 2756 | || r_type == R_M32R_GOT16_LO) |
| 2757 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
| 2758 | info->shared, h) |
| 2759 | && (! info->shared |
| 2760 | || (! info->symbolic && h->dynindx != -1) |
| 2761 | || !h->def_regular)) |
| 2762 | || (info->shared |
| 2763 | && ((! info->symbolic && h->dynindx != -1) |
| 2764 | || !h->def_regular) |
| 2765 | && (((r_type == R_M32R_16_RELA |
| 2766 | || r_type == R_M32R_32_RELA |
| 2767 | || r_type == R_M32R_24_RELA |
| 2768 | || r_type == R_M32R_HI16_ULO_RELA |
| 2769 | || r_type == R_M32R_HI16_SLO_RELA |
| 2770 | || r_type == R_M32R_LO16_RELA) |
| 2771 | && !h->forced_local) |
| 2772 | || r_type == R_M32R_10_PCREL_RELA |
| 2773 | || r_type == R_M32R_18_PCREL_RELA |
| 2774 | || r_type == R_M32R_26_PCREL_RELA) |
| 2775 | && ((input_section->flags & SEC_ALLOC) != 0 |
| 2776 | /* DWARF will emit R_M32R_16(24,32) relocations |
| 2777 | in its sections against symbols defined |
| 2778 | externally in shared libraries. We can't do |
| 2779 | anything with them here. */ |
| 2780 | || ((input_section->flags & SEC_DEBUGGING) != 0 |
| 2781 | && h->def_dynamic)))) |
| 2782 | { |
| 2783 | /* In these cases, we don't need the relocation |
| 2784 | value. We check specially because in some |
| 2785 | obscure cases sec->output_section will be NULL. */ |
| 2786 | relocation = 0; |
| 2787 | } |
| 2788 | else if (sec->output_section == NULL) |
| 2789 | { |
| 2790 | (*_bfd_error_handler) |
| 2791 | (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"), |
| 2792 | bfd_get_filename (input_bfd), h->root.root.string, |
| 2793 | bfd_get_section_name (input_bfd, input_section)); |
| 2794 | |
| 2795 | relocation = 0; |
| 2796 | } |
| 2797 | else |
| 2798 | relocation = (h->root.u.def.value |
| 2799 | + sec->output_section->vma |
| 2800 | + sec->output_offset); |
| 2801 | } |
| 2802 | else if (h->root.type == bfd_link_hash_undefweak) |
| 2803 | relocation = 0; |
| 2804 | else if (info->unresolved_syms_in_objects == RM_IGNORE |
| 2805 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
| 2806 | relocation = 0; |
| 2807 | else |
| 2808 | { |
| 2809 | if (! ((*info->callbacks->undefined_symbol) |
| 2810 | (info, h->root.root.string, input_bfd, |
| 2811 | input_section, offset, |
| 2812 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR |
| 2813 | || ELF_ST_VISIBILITY (h->other))))) |
| 2814 | return FALSE; |
| 2815 | relocation = 0; |
| 2816 | } |
| 2817 | } |
| 2818 | |
| 2819 | /* Sanity check the address. */ |
| 2820 | if (offset > high_address) |
| 2821 | { |
| 2822 | r = bfd_reloc_outofrange; |
| 2823 | goto check_reloc; |
| 2824 | } |
| 2825 | |
| 2826 | switch ((int) r_type) |
| 2827 | { |
| 2828 | case R_M32R_GOTOFF: |
| 2829 | /* Relocation is relative to the start of the global offset |
| 2830 | table (for ld24 rx, #uimm24). eg access at label+addend |
| 2831 | |
| 2832 | ld24 rx. #label@GOTOFF + addend |
| 2833 | sub rx, r12. */ |
| 2834 | |
| 2835 | BFD_ASSERT (sgot != NULL); |
| 2836 | |
| 2837 | relocation = -(relocation - sgot->output_section->vma); |
| 2838 | rel->r_addend = -rel->r_addend; |
| 2839 | break; |
| 2840 | |
| 2841 | case R_M32R_GOTOFF_HI_ULO: |
| 2842 | case R_M32R_GOTOFF_HI_SLO: |
| 2843 | case R_M32R_GOTOFF_LO: |
| 2844 | BFD_ASSERT (sgot != NULL); |
| 2845 | |
| 2846 | relocation -= sgot->output_section->vma; |
| 2847 | |
| 2848 | if ((r_type == R_M32R_GOTOFF_HI_SLO) |
| 2849 | && ((relocation + rel->r_addend) & 0x8000)) |
| 2850 | rel->r_addend += 0x10000; |
| 2851 | break; |
| 2852 | |
| 2853 | case R_M32R_GOTPC24: |
| 2854 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation |
| 2855 | ld24 rx,#_GLOBAL_OFFSET_TABLE_ |
| 2856 | */ |
| 2857 | relocation = sgot->output_section->vma; |
| 2858 | break; |
| 2859 | |
| 2860 | case R_M32R_GOTPC_HI_ULO: |
| 2861 | case R_M32R_GOTPC_HI_SLO: |
| 2862 | case R_M32R_GOTPC_LO: |
| 2863 | { |
| 2864 | /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation |
| 2865 | bl .+4 |
| 2866 | seth rx,#high(_GLOBAL_OFFSET_TABLE_) |
| 2867 | or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) |
| 2868 | or |
| 2869 | bl .+4 |
| 2870 | seth rx,#shigh(_GLOBAL_OFFSET_TABLE_) |
| 2871 | add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) |
| 2872 | */ |
| 2873 | relocation = sgot->output_section->vma; |
| 2874 | relocation -= (input_section->output_section->vma |
| 2875 | + input_section->output_offset |
| 2876 | + rel->r_offset); |
| 2877 | if ((r_type == R_M32R_GOTPC_HI_SLO) |
| 2878 | && ((relocation + rel->r_addend) & 0x8000)) |
| 2879 | rel->r_addend += 0x10000; |
| 2880 | |
| 2881 | break; |
| 2882 | } |
| 2883 | case R_M32R_GOT16_HI_ULO: |
| 2884 | case R_M32R_GOT16_HI_SLO: |
| 2885 | case R_M32R_GOT16_LO: |
| 2886 | /* Fall through. */ |
| 2887 | case R_M32R_GOT24: |
| 2888 | /* Relocation is to the entry for this symbol in the global |
| 2889 | offset table. */ |
| 2890 | BFD_ASSERT (sgot != NULL); |
| 2891 | |
| 2892 | if (h != NULL) |
| 2893 | { |
| 2894 | bfd_boolean dyn; |
| 2895 | bfd_vma off; |
| 2896 | |
| 2897 | off = h->got.offset; |
| 2898 | BFD_ASSERT (off != (bfd_vma) -1); |
| 2899 | |
| 2900 | dyn = htab->root.dynamic_sections_created; |
| 2901 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
| 2902 | || (info->shared |
| 2903 | && (info->symbolic |
| 2904 | || h->dynindx == -1 |
| 2905 | || h->forced_local) |
| 2906 | && h->def_regular)) |
| 2907 | { |
| 2908 | /* This is actually a static link, or it is a |
| 2909 | -Bsymbolic link and the symbol is defined |
| 2910 | locally, or the symbol was forced to be local |
| 2911 | because of a version file. We must initialize |
| 2912 | this entry in the global offset table. Since the |
| 2913 | offset must always be a multiple of 4, we use the |
| 2914 | least significant bit to record whether we have |
| 2915 | initialized it already. |
| 2916 | |
| 2917 | When doing a dynamic link, we create a .rela.got |
| 2918 | relocation entry to initialize the value. This |
| 2919 | is done in the finish_dynamic_symbol routine. */ |
| 2920 | if ((off & 1) != 0) |
| 2921 | off &= ~1; |
| 2922 | else |
| 2923 | { |
| 2924 | bfd_put_32 (output_bfd, relocation, |
| 2925 | sgot->contents + off); |
| 2926 | h->got.offset |= 1; |
| 2927 | } |
| 2928 | } |
| 2929 | |
| 2930 | relocation = sgot->output_offset + off; |
| 2931 | } |
| 2932 | else |
| 2933 | { |
| 2934 | bfd_vma off; |
| 2935 | bfd_byte *loc; |
| 2936 | |
| 2937 | BFD_ASSERT (local_got_offsets != NULL |
| 2938 | && local_got_offsets[r_symndx] != (bfd_vma) -1); |
| 2939 | |
| 2940 | off = local_got_offsets[r_symndx]; |
| 2941 | |
| 2942 | /* The offset must always be a multiple of 4. We use |
| 2943 | the least significant bit to record whether we have |
| 2944 | already processed this entry. */ |
| 2945 | if ((off & 1) != 0) |
| 2946 | off &= ~1; |
| 2947 | else |
| 2948 | { |
| 2949 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); |
| 2950 | |
| 2951 | if (info->shared) |
| 2952 | { |
| 2953 | asection *srelgot; |
| 2954 | Elf_Internal_Rela outrel; |
| 2955 | |
| 2956 | /* We need to generate a R_M32R_RELATIVE reloc |
| 2957 | for the dynamic linker. */ |
| 2958 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
| 2959 | BFD_ASSERT (srelgot != NULL); |
| 2960 | |
| 2961 | outrel.r_offset = (sgot->output_section->vma |
| 2962 | + sgot->output_offset |
| 2963 | + off); |
| 2964 | outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); |
| 2965 | outrel.r_addend = relocation; |
| 2966 | loc = srelgot->contents; |
| 2967 | loc += srelgot->reloc_count * sizeof(Elf32_External_Rela); |
| 2968 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); |
| 2969 | ++srelgot->reloc_count; |
| 2970 | } |
| 2971 | |
| 2972 | local_got_offsets[r_symndx] |= 1; |
| 2973 | } |
| 2974 | |
| 2975 | relocation = sgot->output_offset + off; |
| 2976 | } |
| 2977 | if ((r_type == R_M32R_GOT16_HI_SLO) |
| 2978 | && ((relocation + rel->r_addend) & 0x8000)) |
| 2979 | rel->r_addend += 0x10000; |
| 2980 | |
| 2981 | break; |
| 2982 | |
| 2983 | case R_M32R_26_PLTREL: |
| 2984 | /* Relocation is to the entry for this symbol in the |
| 2985 | procedure linkage table. */ |
| 2986 | |
| 2987 | /* The native assembler will generate a 26_PLTREL reloc |
| 2988 | for a local symbol if you assemble a call from one |
| 2989 | section to another when using -K pic. */ |
| 2990 | if (h == NULL) |
| 2991 | break; |
| 2992 | |
| 2993 | //if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL |
| 2994 | // || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN) |
| 2995 | // break; |
| 2996 | if (h->forced_local) |
| 2997 | break; |
| 2998 | |
| 2999 | if (h->plt.offset == (bfd_vma) -1) |
| 3000 | { |
| 3001 | /* We didn't make a PLT entry for this symbol. This |
| 3002 | happens when statically linking PIC code, or when |
| 3003 | using -Bsymbolic. */ |
| 3004 | break; |
| 3005 | } |
| 3006 | |
| 3007 | relocation = (splt->output_section->vma |
| 3008 | + splt->output_offset |
| 3009 | + h->plt.offset); |
| 3010 | break; |
| 3011 | |
| 3012 | case R_M32R_HI16_SLO_RELA: |
| 3013 | { |
| 3014 | if ((relocation + rel->r_addend) & 0x8000) |
| 3015 | { |
| 3016 | rel->r_addend += 0x10000; |
| 3017 | } |
| 3018 | } |
| 3019 | /* Fall through. */ |
| 3020 | case R_M32R_16_RELA: |
| 3021 | case R_M32R_24_RELA: |
| 3022 | case R_M32R_32_RELA: |
| 3023 | case R_M32R_18_PCREL_RELA: |
| 3024 | case R_M32R_26_PCREL_RELA: |
| 3025 | case R_M32R_HI16_ULO_RELA: |
| 3026 | case R_M32R_LO16_RELA: |
| 3027 | if (info->shared |
| 3028 | && r_symndx != 0 |
| 3029 | && (input_section->flags & SEC_ALLOC) != 0 |
| 3030 | && ((r_type != R_M32R_18_PCREL_RELA |
| 3031 | && r_type != R_M32R_26_PCREL_RELA) |
| 3032 | || (h != NULL |
| 3033 | && h->dynindx != -1 |
| 3034 | && (! info->symbolic |
| 3035 | || !h->def_regular)))) |
| 3036 | { |
| 3037 | Elf_Internal_Rela outrel; |
| 3038 | bfd_boolean skip, relocate; |
| 3039 | bfd_byte *loc; |
| 3040 | |
| 3041 | /* When generating a shared object, these relocations |
| 3042 | are copied into the output file to be resolved at run |
| 3043 | time. */ |
| 3044 | |
| 3045 | if (sreloc == NULL) |
| 3046 | { |
| 3047 | const char *name; |
| 3048 | |
| 3049 | name = (bfd_elf_string_from_elf_section |
| 3050 | (input_bfd, |
| 3051 | elf_elfheader (input_bfd)->e_shstrndx, |
| 3052 | elf_section_data (input_section)->rel_hdr.sh_name)); |
| 3053 | if (name == NULL) |
| 3054 | return FALSE; |
| 3055 | |
| 3056 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 |
| 3057 | && strcmp (bfd_get_section_name (input_bfd, |
| 3058 | input_section), |
| 3059 | name + 5) == 0); |
| 3060 | |
| 3061 | sreloc = bfd_get_section_by_name (dynobj, name); |
| 3062 | BFD_ASSERT (sreloc != NULL); |
| 3063 | } |
| 3064 | |
| 3065 | skip = FALSE; |
| 3066 | relocate = FALSE; |
| 3067 | |
| 3068 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, |
| 3069 | info, |
| 3070 | input_section, |
| 3071 | rel->r_offset); |
| 3072 | if (outrel.r_offset == (bfd_vma) -1) |
| 3073 | skip = TRUE; |
| 3074 | else if (outrel.r_offset == (bfd_vma) -2) |
| 3075 | skip = TRUE, relocate = TRUE; |
| 3076 | outrel.r_offset += (input_section->output_section->vma |
| 3077 | + input_section->output_offset); |
| 3078 | |
| 3079 | if (skip) |
| 3080 | memset (&outrel, 0, sizeof outrel); |
| 3081 | else if (r_type == R_M32R_18_PCREL_RELA |
| 3082 | || r_type == R_M32R_26_PCREL_RELA) |
| 3083 | { |
| 3084 | BFD_ASSERT (h != NULL && h->dynindx != -1); |
| 3085 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
| 3086 | outrel.r_addend = rel->r_addend; |
| 3087 | } |
| 3088 | else |
| 3089 | { |
| 3090 | /* h->dynindx may be -1 if this symbol was marked to |
| 3091 | become local. */ |
| 3092 | if (h == NULL |
| 3093 | || ((info->symbolic || h->dynindx == -1) |
| 3094 | && h->def_regular)) |
| 3095 | { |
| 3096 | relocate = TRUE; |
| 3097 | outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); |
| 3098 | outrel.r_addend = relocation + rel->r_addend; |
| 3099 | } |
| 3100 | else |
| 3101 | { |
| 3102 | BFD_ASSERT (h->dynindx != -1); |
| 3103 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
| 3104 | outrel.r_addend = relocation + rel->r_addend; |
| 3105 | } |
| 3106 | } |
| 3107 | |
| 3108 | loc = sreloc->contents; |
| 3109 | loc += sreloc->reloc_count * sizeof(Elf32_External_Rela); |
| 3110 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); |
| 3111 | ++sreloc->reloc_count; |
| 3112 | |
| 3113 | /* If this reloc is against an external symbol, we do |
| 3114 | not want to fiddle with the addend. Otherwise, we |
| 3115 | need to include the symbol value so that it becomes |
| 3116 | an addend for the dynamic reloc. */ |
| 3117 | if (! relocate) |
| 3118 | continue; |
| 3119 | } |
| 3120 | break; |
| 3121 | |
| 3122 | case (int) R_M32R_10_PCREL : |
| 3123 | r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section, |
| 3124 | contents, offset, |
| 3125 | sec, relocation, addend); |
| 3126 | goto check_reloc; |
| 3127 | |
| 3128 | case (int) R_M32R_HI16_SLO : |
| 3129 | case (int) R_M32R_HI16_ULO : |
| 3130 | { |
| 3131 | Elf_Internal_Rela *lorel; |
| 3132 | |
| 3133 | /* We allow an arbitrary number of HI16 relocs before the |
| 3134 | LO16 reloc. This permits gcc to emit the HI and LO relocs |
| 3135 | itself. */ |
| 3136 | for (lorel = rel + 1; |
| 3137 | (lorel < relend |
| 3138 | && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO |
| 3139 | || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO)); |
| 3140 | lorel++) |
| 3141 | continue; |
| 3142 | if (lorel < relend |
| 3143 | && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16) |
| 3144 | { |
| 3145 | m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel, |
| 3146 | contents, relocation + addend); |
| 3147 | r = bfd_reloc_ok; |
| 3148 | } |
| 3149 | else |
| 3150 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
| 3151 | contents, offset, |
| 3152 | relocation, addend); |
| 3153 | } |
| 3154 | |
| 3155 | goto check_reloc; |
| 3156 | |
| 3157 | case (int) R_M32R_SDA16_RELA: |
| 3158 | case (int) R_M32R_SDA16 : |
| 3159 | { |
| 3160 | const char *name; |
| 3161 | |
| 3162 | BFD_ASSERT (sec != NULL); |
| 3163 | name = bfd_get_section_name (abfd, sec); |
| 3164 | |
| 3165 | if (strcmp (name, ".sdata") == 0 |
| 3166 | || strcmp (name, ".sbss") == 0 |
| 3167 | || strcmp (name, ".scommon") == 0) |
| 3168 | { |
| 3169 | bfd_vma sda_base; |
| 3170 | bfd *out_bfd = sec->output_section->owner; |
| 3171 | |
| 3172 | r = m32r_elf_final_sda_base (out_bfd, info, |
| 3173 | &errmsg, |
| 3174 | &sda_base); |
| 3175 | if (r != bfd_reloc_ok) |
| 3176 | { |
| 3177 | ret = FALSE; |
| 3178 | goto check_reloc; |
| 3179 | } |
| 3180 | |
| 3181 | /* At this point `relocation' contains the object's |
| 3182 | address. */ |
| 3183 | relocation -= sda_base; |
| 3184 | /* Now it contains the offset from _SDA_BASE_. */ |
| 3185 | } |
| 3186 | else |
| 3187 | { |
| 3188 | (*_bfd_error_handler) |
| 3189 | (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"), |
| 3190 | input_bfd, |
| 3191 | sec, |
| 3192 | sym_name, |
| 3193 | m32r_elf_howto_table[(int) r_type].name); |
| 3194 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
| 3195 | ret = FALSE; |
| 3196 | continue; |
| 3197 | } |
| 3198 | } |
| 3199 | /* fall through */ |
| 3200 | |
| 3201 | default : /* OLD_M32R_RELOC */ |
| 3202 | |
| 3203 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
| 3204 | contents, offset, |
| 3205 | relocation, addend); |
| 3206 | goto check_reloc; |
| 3207 | } |
| 3208 | |
| 3209 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
| 3210 | contents, rel->r_offset, |
| 3211 | relocation, rel->r_addend); |
| 3212 | |
| 3213 | } |
| 3214 | |
| 3215 | check_reloc: |
| 3216 | |
| 3217 | if (r != bfd_reloc_ok) |
| 3218 | { |
| 3219 | /* FIXME: This should be generic enough to go in a utility. */ |
| 3220 | const char *name; |
| 3221 | |
| 3222 | if (h != NULL) |
| 3223 | name = h->root.root.string; |
| 3224 | else |
| 3225 | { |
| 3226 | name = (bfd_elf_string_from_elf_section |
| 3227 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); |
| 3228 | if (name == NULL || *name == '\0') |
| 3229 | name = bfd_section_name (input_bfd, sec); |
| 3230 | } |
| 3231 | |
| 3232 | if (errmsg != NULL) |
| 3233 | goto common_error; |
| 3234 | |
| 3235 | switch (r) |
| 3236 | { |
| 3237 | case bfd_reloc_overflow: |
| 3238 | if (! ((*info->callbacks->reloc_overflow) |
| 3239 | (info, (h ? &h->root : NULL), name, howto->name, |
| 3240 | (bfd_vma) 0, input_bfd, input_section, offset))) |
| 3241 | return FALSE; |
| 3242 | break; |
| 3243 | |
| 3244 | case bfd_reloc_undefined: |
| 3245 | if (! ((*info->callbacks->undefined_symbol) |
| 3246 | (info, name, input_bfd, input_section, |
| 3247 | offset, TRUE))) |
| 3248 | return FALSE; |
| 3249 | break; |
| 3250 | |
| 3251 | case bfd_reloc_outofrange: |
| 3252 | errmsg = _("internal error: out of range error"); |
| 3253 | goto common_error; |
| 3254 | |
| 3255 | case bfd_reloc_notsupported: |
| 3256 | errmsg = _("internal error: unsupported relocation error"); |
| 3257 | goto common_error; |
| 3258 | |
| 3259 | case bfd_reloc_dangerous: |
| 3260 | errmsg = _("internal error: dangerous error"); |
| 3261 | goto common_error; |
| 3262 | |
| 3263 | default: |
| 3264 | errmsg = _("internal error: unknown error"); |
| 3265 | /* fall through */ |
| 3266 | |
| 3267 | common_error: |
| 3268 | if (!((*info->callbacks->warning) |
| 3269 | (info, errmsg, name, input_bfd, input_section, |
| 3270 | offset))) |
| 3271 | return FALSE; |
| 3272 | break; |
| 3273 | } |
| 3274 | } |
| 3275 | } |
| 3276 | |
| 3277 | return ret; |
| 3278 | } |
| 3279 | |
| 3280 | /* Finish up dynamic symbol handling. We set the contents of various |
| 3281 | dynamic sections here. */ |
| 3282 | static bfd_boolean |
| 3283 | m32r_elf_finish_dynamic_symbol (output_bfd, info, h, sym) |
| 3284 | bfd *output_bfd; |
| 3285 | struct bfd_link_info *info; |
| 3286 | struct elf_link_hash_entry *h; |
| 3287 | Elf_Internal_Sym *sym; |
| 3288 | { |
| 3289 | struct elf_m32r_link_hash_table *htab; |
| 3290 | bfd *dynobj; |
| 3291 | bfd_byte *loc; |
| 3292 | |
| 3293 | #ifdef DEBUG_PIC |
| 3294 | printf("m32r_elf_finish_dynamic_symbol()\n"); |
| 3295 | #endif |
| 3296 | |
| 3297 | htab = m32r_elf_hash_table (info); |
| 3298 | dynobj = htab->root.dynobj; |
| 3299 | |
| 3300 | if (h->plt.offset != (bfd_vma) -1) |
| 3301 | { |
| 3302 | asection *splt; |
| 3303 | asection *sgot; |
| 3304 | asection *srela; |
| 3305 | |
| 3306 | bfd_vma plt_index; |
| 3307 | bfd_vma got_offset; |
| 3308 | Elf_Internal_Rela rela; |
| 3309 | |
| 3310 | /* This symbol has an entry in the procedure linkage table. Set |
| 3311 | it up. */ |
| 3312 | |
| 3313 | BFD_ASSERT (h->dynindx != -1); |
| 3314 | |
| 3315 | splt = htab->splt; |
| 3316 | sgot = htab->sgotplt; |
| 3317 | srela = htab->srelplt; |
| 3318 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
| 3319 | |
| 3320 | /* Get the index in the procedure linkage table which |
| 3321 | corresponds to this symbol. This is the index of this symbol |
| 3322 | in all the symbols for which we are making plt entries. The |
| 3323 | first entry in the procedure linkage table is reserved. */ |
| 3324 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; |
| 3325 | |
| 3326 | /* Get the offset into the .got table of the entry that |
| 3327 | corresponds to this function. Each .got entry is 4 bytes. |
| 3328 | The first three are reserved. */ |
| 3329 | got_offset = (plt_index + 3) * 4; |
| 3330 | |
| 3331 | /* Fill in the entry in the procedure linkage table. */ |
| 3332 | if (! info->shared) |
| 3333 | { |
| 3334 | bfd_put_32 (output_bfd, |
| 3335 | (PLT_ENTRY_WORD0b |
| 3336 | + (((sgot->output_section->vma |
| 3337 | + sgot->output_offset |
| 3338 | + got_offset) >> 16) & 0xffff)), |
| 3339 | splt->contents + h->plt.offset); |
| 3340 | bfd_put_32 (output_bfd, |
| 3341 | (PLT_ENTRY_WORD1b |
| 3342 | + ((sgot->output_section->vma |
| 3343 | + sgot->output_offset |
| 3344 | + got_offset) & 0xffff)), |
| 3345 | splt->contents + h->plt.offset + 4); |
| 3346 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, |
| 3347 | splt->contents + h->plt.offset + 8); |
| 3348 | bfd_put_32 (output_bfd, |
| 3349 | (PLT_ENTRY_WORD3 |
| 3350 | + plt_index * sizeof (Elf32_External_Rela)), |
| 3351 | splt->contents + h->plt.offset + 12); |
| 3352 | bfd_put_32 (output_bfd, |
| 3353 | (PLT_ENTRY_WORD4 |
| 3354 | + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)), |
| 3355 | splt->contents + h->plt.offset + 16); |
| 3356 | } |
| 3357 | else |
| 3358 | { |
| 3359 | bfd_put_32 (output_bfd, |
| 3360 | PLT_ENTRY_WORD0 + got_offset, |
| 3361 | splt->contents + h->plt.offset); |
| 3362 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD1, |
| 3363 | splt->contents + h->plt.offset + 4); |
| 3364 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD2, |
| 3365 | splt->contents + h->plt.offset + 8); |
| 3366 | bfd_put_32 (output_bfd, |
| 3367 | (PLT_ENTRY_WORD3 |
| 3368 | + plt_index * sizeof (Elf32_External_Rela)), |
| 3369 | splt->contents + h->plt.offset + 12); |
| 3370 | bfd_put_32 (output_bfd, |
| 3371 | (PLT_ENTRY_WORD4 |
| 3372 | + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)), |
| 3373 | splt->contents + h->plt.offset + 16); |
| 3374 | } |
| 3375 | |
| 3376 | /* Fill in the entry in the global offset table. */ |
| 3377 | bfd_put_32 (output_bfd, |
| 3378 | (splt->output_section->vma |
| 3379 | + splt->output_offset |
| 3380 | + h->plt.offset |
| 3381 | + 12), /* same offset */ |
| 3382 | sgot->contents + got_offset); |
| 3383 | |
| 3384 | /* Fill in the entry in the .rela.plt section. */ |
| 3385 | rela.r_offset = (sgot->output_section->vma |
| 3386 | + sgot->output_offset |
| 3387 | + got_offset); |
| 3388 | rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT); |
| 3389 | rela.r_addend = 0; |
| 3390 | loc = srela->contents; |
| 3391 | loc += plt_index * sizeof(Elf32_External_Rela); |
| 3392 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
| 3393 | |
| 3394 | if (!h->def_regular) |
| 3395 | { |
| 3396 | /* Mark the symbol as undefined, rather than as defined in |
| 3397 | the .plt section. Leave the value alone. */ |
| 3398 | sym->st_shndx = SHN_UNDEF; |
| 3399 | } |
| 3400 | } |
| 3401 | |
| 3402 | if (h->got.offset != (bfd_vma) -1) |
| 3403 | { |
| 3404 | asection *sgot; |
| 3405 | asection *srela; |
| 3406 | Elf_Internal_Rela rela; |
| 3407 | |
| 3408 | /* This symbol has an entry in the global offset table. Set it |
| 3409 | up. */ |
| 3410 | |
| 3411 | sgot = htab->sgot; |
| 3412 | srela = htab->srelgot; |
| 3413 | BFD_ASSERT (sgot != NULL && srela != NULL); |
| 3414 | |
| 3415 | rela.r_offset = (sgot->output_section->vma |
| 3416 | + sgot->output_offset |
| 3417 | + (h->got.offset &~ 1)); |
| 3418 | |
| 3419 | /* If this is a -Bsymbolic link, and the symbol is defined |
| 3420 | locally, we just want to emit a RELATIVE reloc. Likewise if |
| 3421 | the symbol was forced to be local because of a version file. |
| 3422 | The entry in the global offset table will already have been |
| 3423 | initialized in the relocate_section function. */ |
| 3424 | if (info->shared |
| 3425 | && (info->symbolic |
| 3426 | || h->dynindx == -1 |
| 3427 | || h->forced_local) |
| 3428 | && h->def_regular) |
| 3429 | { |
| 3430 | rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE); |
| 3431 | rela.r_addend = (h->root.u.def.value |
| 3432 | + h->root.u.def.section->output_section->vma |
| 3433 | + h->root.u.def.section->output_offset); |
| 3434 | } |
| 3435 | else |
| 3436 | { |
| 3437 | BFD_ASSERT((h->got.offset & 1) == 0); |
| 3438 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
| 3439 | rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT); |
| 3440 | rela.r_addend = 0; |
| 3441 | } |
| 3442 | |
| 3443 | loc = srela->contents; |
| 3444 | loc += srela->reloc_count * sizeof(Elf32_External_Rela); |
| 3445 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
| 3446 | ++srela->reloc_count; |
| 3447 | } |
| 3448 | |
| 3449 | if (h->needs_copy) |
| 3450 | { |
| 3451 | asection *s; |
| 3452 | Elf_Internal_Rela rela; |
| 3453 | |
| 3454 | /* This symbols needs a copy reloc. Set it up. */ |
| 3455 | |
| 3456 | BFD_ASSERT (h->dynindx != -1 |
| 3457 | && (h->root.type == bfd_link_hash_defined |
| 3458 | || h->root.type == bfd_link_hash_defweak)); |
| 3459 | |
| 3460 | s = bfd_get_section_by_name (h->root.u.def.section->owner, |
| 3461 | ".rela.bss"); |
| 3462 | BFD_ASSERT (s != NULL); |
| 3463 | |
| 3464 | rela.r_offset = (h->root.u.def.value |
| 3465 | + h->root.u.def.section->output_section->vma |
| 3466 | + h->root.u.def.section->output_offset); |
| 3467 | rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY); |
| 3468 | rela.r_addend = 0; |
| 3469 | loc = s->contents; |
| 3470 | loc += s->reloc_count * sizeof(Elf32_External_Rela); |
| 3471 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
| 3472 | ++s->reloc_count; |
| 3473 | } |
| 3474 | |
| 3475 | /* Mark some specially defined symbols as absolute. */ |
| 3476 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
| 3477 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
| 3478 | sym->st_shndx = SHN_ABS; |
| 3479 | |
| 3480 | return TRUE; |
| 3481 | } |
| 3482 | |
| 3483 | |
| 3484 | /* Finish up the dynamic sections. */ |
| 3485 | |
| 3486 | static bfd_boolean |
| 3487 | m32r_elf_finish_dynamic_sections (output_bfd, info) |
| 3488 | bfd *output_bfd; |
| 3489 | struct bfd_link_info *info; |
| 3490 | { |
| 3491 | struct elf_m32r_link_hash_table *htab; |
| 3492 | bfd *dynobj; |
| 3493 | asection *sdyn; |
| 3494 | asection *sgot; |
| 3495 | |
| 3496 | #ifdef DEBUG_PIC |
| 3497 | printf("m32r_elf_finish_dynamic_sections()\n"); |
| 3498 | #endif |
| 3499 | |
| 3500 | htab = m32r_elf_hash_table (info); |
| 3501 | dynobj = htab->root.dynobj; |
| 3502 | |
| 3503 | sgot = htab->sgotplt; |
| 3504 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
| 3505 | |
| 3506 | if (htab->root.dynamic_sections_created) |
| 3507 | { |
| 3508 | asection *splt; |
| 3509 | Elf32_External_Dyn *dyncon, *dynconend; |
| 3510 | |
| 3511 | BFD_ASSERT (sgot != NULL && sdyn != NULL); |
| 3512 | |
| 3513 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
| 3514 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
| 3515 | |
| 3516 | for (; dyncon < dynconend; dyncon++) |
| 3517 | { |
| 3518 | Elf_Internal_Dyn dyn; |
| 3519 | const char *name; |
| 3520 | asection *s; |
| 3521 | |
| 3522 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
| 3523 | |
| 3524 | switch (dyn.d_tag) |
| 3525 | { |
| 3526 | default: |
| 3527 | break; |
| 3528 | |
| 3529 | case DT_PLTGOT: |
| 3530 | name = ".got"; |
| 3531 | s = htab->sgot->output_section; |
| 3532 | goto get_vma; |
| 3533 | case DT_JMPREL: |
| 3534 | name = ".rela.plt"; |
| 3535 | s = htab->srelplt->output_section; |
| 3536 | get_vma: |
| 3537 | BFD_ASSERT (s != NULL); |
| 3538 | dyn.d_un.d_ptr = s->vma; |
| 3539 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 3540 | break; |
| 3541 | |
| 3542 | case DT_PLTRELSZ: |
| 3543 | s = htab->srelplt->output_section; |
| 3544 | BFD_ASSERT (s != NULL); |
| 3545 | dyn.d_un.d_val = s->size; |
| 3546 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 3547 | break; |
| 3548 | |
| 3549 | case DT_RELASZ: |
| 3550 | /* My reading of the SVR4 ABI indicates that the |
| 3551 | procedure linkage table relocs (DT_JMPREL) should be |
| 3552 | included in the overall relocs (DT_RELA). This is |
| 3553 | what Solaris does. However, UnixWare can not handle |
| 3554 | that case. Therefore, we override the DT_RELASZ entry |
| 3555 | here to make it not include the JMPREL relocs. Since |
| 3556 | the linker script arranges for .rela.plt to follow all |
| 3557 | other relocation sections, we don't have to worry |
| 3558 | about changing the DT_RELA entry. */ |
| 3559 | if (htab->srelplt != NULL) |
| 3560 | { |
| 3561 | s = htab->srelplt->output_section; |
| 3562 | dyn.d_un.d_val -= s->size; |
| 3563 | } |
| 3564 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 3565 | break; |
| 3566 | } |
| 3567 | } |
| 3568 | |
| 3569 | /* Fill in the first entry in the procedure linkage table. */ |
| 3570 | splt = htab->splt; |
| 3571 | if (splt && splt->size > 0) |
| 3572 | { |
| 3573 | if (info->shared) |
| 3574 | { |
| 3575 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents); |
| 3576 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4); |
| 3577 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8); |
| 3578 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12); |
| 3579 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16); |
| 3580 | } |
| 3581 | else |
| 3582 | { |
| 3583 | unsigned long addr; |
| 3584 | /* addr = .got + 4 */ |
| 3585 | addr = sgot->output_section->vma + sgot->output_offset + 4; |
| 3586 | bfd_put_32 (output_bfd, |
| 3587 | PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff), |
| 3588 | splt->contents); |
| 3589 | bfd_put_32 (output_bfd, |
| 3590 | PLT0_ENTRY_WORD1 | (addr & 0xffff), |
| 3591 | splt->contents + 4); |
| 3592 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8); |
| 3593 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12); |
| 3594 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16); |
| 3595 | } |
| 3596 | |
| 3597 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = |
| 3598 | PLT_ENTRY_SIZE; |
| 3599 | } |
| 3600 | } |
| 3601 | |
| 3602 | /* Fill in the first three entries in the global offset table. */ |
| 3603 | if (sgot && sgot->size > 0) |
| 3604 | { |
| 3605 | if (sdyn == NULL) |
| 3606 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
| 3607 | else |
| 3608 | bfd_put_32 (output_bfd, |
| 3609 | sdyn->output_section->vma + sdyn->output_offset, |
| 3610 | sgot->contents); |
| 3611 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); |
| 3612 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); |
| 3613 | |
| 3614 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
| 3615 | } |
| 3616 | |
| 3617 | return TRUE; |
| 3618 | } |
| 3619 | |
| 3620 | \f |
| 3621 | #if 0 /* relaxing not supported yet */ |
| 3622 | |
| 3623 | /* This function handles relaxing for the m32r. |
| 3624 | Relaxing on the m32r is tricky because of instruction alignment |
| 3625 | requirements (4 byte instructions must be aligned on 4 byte boundaries). |
| 3626 | |
| 3627 | The following relaxing opportunities are handled: |
| 3628 | |
| 3629 | seth/add3/jl -> bl24 or bl8 |
| 3630 | seth/add3 -> ld24 |
| 3631 | |
| 3632 | It would be nice to handle bl24 -> bl8 but given: |
| 3633 | |
| 3634 | - 4 byte insns must be on 4 byte boundaries |
| 3635 | - branch instructions only branch to insns on 4 byte boundaries |
| 3636 | |
| 3637 | this isn't much of a win because the insn in the 2 "deleted" bytes |
| 3638 | must become a nop. With some complexity some real relaxation could be |
| 3639 | done but the frequency just wouldn't make it worth it; it's better to |
| 3640 | try to do all the code compaction one can elsewhere. |
| 3641 | When the chip supports parallel 16 bit insns, things may change. |
| 3642 | */ |
| 3643 | |
| 3644 | static bfd_boolean |
| 3645 | m32r_elf_relax_section (abfd, sec, link_info, again) |
| 3646 | bfd *abfd; |
| 3647 | asection *sec; |
| 3648 | struct bfd_link_info *link_info; |
| 3649 | bfd_boolean *again; |
| 3650 | { |
| 3651 | Elf_Internal_Shdr *symtab_hdr; |
| 3652 | /* The Rela structures are used here because that's what |
| 3653 | _bfd_elf_link_read_relocs uses [for convenience - it sets the addend |
| 3654 | field to 0]. */ |
| 3655 | Elf_Internal_Rela *internal_relocs = NULL; |
| 3656 | Elf_Internal_Rela *irel, *irelend; |
| 3657 | bfd_byte *contents = NULL; |
| 3658 | Elf_Internal_Sym *isymbuf = NULL; |
| 3659 | |
| 3660 | /* Assume nothing changes. */ |
| 3661 | *again = FALSE; |
| 3662 | |
| 3663 | /* We don't have to do anything for a relocatable link, if |
| 3664 | this section does not have relocs, or if this is not a |
| 3665 | code section. */ |
| 3666 | if (link_info->relocatable |
| 3667 | || (sec->flags & SEC_RELOC) == 0 |
| 3668 | || sec->reloc_count == 0 |
| 3669 | || (sec->flags & SEC_CODE) == 0 |
| 3670 | || 0 /* FIXME: check SHF_M32R_CAN_RELAX */) |
| 3671 | return TRUE; |
| 3672 | |
| 3673 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 3674 | |
| 3675 | /* Get a copy of the native relocations. */ |
| 3676 | internal_relocs = (_bfd_elf_link_read_relocs |
| 3677 | (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
| 3678 | link_info->keep_memory)); |
| 3679 | if (internal_relocs == NULL) |
| 3680 | goto error_return; |
| 3681 | |
| 3682 | /* Walk through them looking for relaxing opportunities. */ |
| 3683 | irelend = internal_relocs + sec->reloc_count; |
| 3684 | for (irel = internal_relocs; irel < irelend; irel++) |
| 3685 | { |
| 3686 | bfd_vma symval; |
| 3687 | |
| 3688 | /* If this isn't something that can be relaxed, then ignore |
| 3689 | this reloc. */ |
| 3690 | if (ELF32_R_TYPE (irel->r_info) != (int) R_M32R_HI16_SLO) |
| 3691 | continue; |
| 3692 | |
| 3693 | /* Get the section contents if we haven't done so already. */ |
| 3694 | if (contents == NULL) |
| 3695 | { |
| 3696 | /* Get cached copy if it exists. */ |
| 3697 | if (elf_section_data (sec)->this_hdr.contents != NULL) |
| 3698 | contents = elf_section_data (sec)->this_hdr.contents; |
| 3699 | else |
| 3700 | { |
| 3701 | /* Go get them off disk. */ |
| 3702 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
| 3703 | goto error_return; |
| 3704 | } |
| 3705 | } |
| 3706 | |
| 3707 | /* Read this BFD's local symbols if we haven't done so already. */ |
| 3708 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
| 3709 | { |
| 3710 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
| 3711 | if (isymbuf == NULL) |
| 3712 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, |
| 3713 | symtab_hdr->sh_info, 0, |
| 3714 | NULL, NULL, NULL); |
| 3715 | if (isymbuf == NULL) |
| 3716 | goto error_return; |
| 3717 | } |
| 3718 | |
| 3719 | /* Get the value of the symbol referred to by the reloc. */ |
| 3720 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
| 3721 | { |
| 3722 | /* A local symbol. */ |
| 3723 | Elf_Internal_Sym *isym; |
| 3724 | asection *sym_sec; |
| 3725 | |
| 3726 | isym = isymbuf + ELF32_R_SYM (irel->r_info), |
| 3727 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 3728 | symval = (isym->st_value |
| 3729 | + sym_sec->output_section->vma |
| 3730 | + sym_sec->output_offset); |
| 3731 | } |
| 3732 | else |
| 3733 | { |
| 3734 | unsigned long indx; |
| 3735 | struct elf_link_hash_entry *h; |
| 3736 | |
| 3737 | /* An external symbol. */ |
| 3738 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; |
| 3739 | h = elf_sym_hashes (abfd)[indx]; |
| 3740 | BFD_ASSERT (h != NULL); |
| 3741 | if (h->root.type != bfd_link_hash_defined |
| 3742 | && h->root.type != bfd_link_hash_defweak) |
| 3743 | { |
| 3744 | /* This appears to be a reference to an undefined |
| 3745 | symbol. Just ignore it--it will be caught by the |
| 3746 | regular reloc processing. */ |
| 3747 | continue; |
| 3748 | } |
| 3749 | |
| 3750 | symval = (h->root.u.def.value |
| 3751 | + h->root.u.def.section->output_section->vma |
| 3752 | + h->root.u.def.section->output_offset); |
| 3753 | } |
| 3754 | |
| 3755 | /* For simplicity of coding, we are going to modify the section |
| 3756 | contents, the section relocs, and the BFD symbol table. We |
| 3757 | must tell the rest of the code not to free up this |
| 3758 | information. It would be possible to instead create a table |
| 3759 | of changes which have to be made, as is done in coff-mips.c; |
| 3760 | that would be more work, but would require less memory when |
| 3761 | the linker is run. */ |
| 3762 | |
| 3763 | /* Try to change a seth/add3/jl subroutine call to bl24 or bl8. |
| 3764 | This sequence is generated by the compiler when compiling in |
| 3765 | 32 bit mode. Also look for seth/add3 -> ld24. */ |
| 3766 | |
| 3767 | if (ELF32_R_TYPE (irel->r_info) == (int) R_M32R_HI16_SLO) |
| 3768 | { |
| 3769 | Elf_Internal_Rela *nrel; |
| 3770 | bfd_vma pc = (sec->output_section->vma + sec->output_offset |
| 3771 | + irel->r_offset); |
| 3772 | bfd_signed_vma pcrel_value = symval - pc; |
| 3773 | unsigned int code,reg; |
| 3774 | int addend,nop_p,bl8_p,to_delete; |
| 3775 | |
| 3776 | /* The tests are ordered so that we get out as quickly as possible |
| 3777 | if this isn't something we can relax, taking into account that |
| 3778 | we are looking for two separate possibilities (jl/ld24). */ |
| 3779 | |
| 3780 | /* Do nothing if no room in the section for this to be what we're |
| 3781 | looking for. */ |
| 3782 | if (irel->r_offset > sec->size - 8) |
| 3783 | continue; |
| 3784 | |
| 3785 | /* Make sure the next relocation applies to the next |
| 3786 | instruction and that it's the add3's reloc. */ |
| 3787 | nrel = irel + 1; |
| 3788 | if (nrel == irelend |
| 3789 | || irel->r_offset + 4 != nrel->r_offset |
| 3790 | || ELF32_R_TYPE (nrel->r_info) != (int) R_M32R_LO16) |
| 3791 | continue; |
| 3792 | |
| 3793 | /* See if the instructions are seth/add3. */ |
| 3794 | /* FIXME: This is where macros from cgen can come in. */ |
| 3795 | code = bfd_get_16 (abfd, contents + irel->r_offset + 0); |
| 3796 | if ((code & 0xf0ff) != 0xd0c0) |
| 3797 | continue; /* not seth rN,foo */ |
| 3798 | reg = (code & 0x0f00) >> 8; |
| 3799 | code = bfd_get_16 (abfd, contents + irel->r_offset + 4); |
| 3800 | if (code != (0x80a0 | reg | (reg << 8))) |
| 3801 | continue; /* not add3 rN,rN,foo */ |
| 3802 | |
| 3803 | /* At this point we've confirmed we have seth/add3. Now check |
| 3804 | whether the next insn is a jl, in which case try to change this |
| 3805 | to bl24 or bl8. */ |
| 3806 | |
| 3807 | /* Ensure the branch target is in range. |
| 3808 | The bl24 instruction has a 24 bit operand which is the target |
| 3809 | address right shifted by 2, giving a signed range of 26 bits. |
| 3810 | Note that 4 bytes are added to the high value because the target |
| 3811 | will be at least 4 bytes closer if we can relax. It'll actually |
| 3812 | be 4 or 8 bytes closer, but we don't know which just yet and |
| 3813 | the difference isn't significant enough to worry about. */ |
| 3814 | #if !USE_REL /* put in for learning purposes */ |
| 3815 | pcrel_value += irel->r_addend; |
| 3816 | #else |
| 3817 | addend = bfd_get_signed_16 (abfd, contents + irel->r_offset + 2); |
| 3818 | pcrel_value += addend; |
| 3819 | #endif |
| 3820 | |
| 3821 | if (pcrel_value >= -(1 << 25) && pcrel_value < (1 << 25) + 4 |
| 3822 | /* Do nothing if no room in the section for this to be what we're |
| 3823 | looking for. */ |
| 3824 | && (irel->r_offset <= sec->size - 12) |
| 3825 | /* Ensure the next insn is "jl rN". */ |
| 3826 | && ((code = bfd_get_16 (abfd, contents + irel->r_offset + 8)), |
| 3827 | code != (0x1ec0 | reg))) |
| 3828 | { |
| 3829 | /* We can relax to bl24/bl8. */ |
| 3830 | |
| 3831 | /* See if there's a nop following the jl. |
| 3832 | Also see if we can use a bl8 insn. */ |
| 3833 | code = bfd_get_16 (abfd, contents + irel->r_offset + 10); |
| 3834 | nop_p = (code & 0x7fff) == NOP_INSN; |
| 3835 | bl8_p = pcrel_value >= -0x200 && pcrel_value < 0x200; |
| 3836 | |
| 3837 | if (bl8_p) |
| 3838 | { |
| 3839 | /* Change "seth rN,foo" to "bl8 foo || nop". |
| 3840 | We OR in CODE just in case it's not a nop (technically, |
| 3841 | CODE currently must be a nop, but for cleanness we |
| 3842 | allow it to be anything). */ |
| 3843 | #if !USE_REL /* put in for learning purposes */ |
| 3844 | code = 0x7e000000 | MAKE_PARALLEL (code); |
| 3845 | #else |
| 3846 | code = (0x7e000000 + (((addend >> 2) & 0xff) << 16)) | MAKE_PARALLEL (code); |
| 3847 | #endif |
| 3848 | to_delete = 8; |
| 3849 | } |
| 3850 | else |
| 3851 | { |
| 3852 | /* Change the seth rN,foo to a bl24 foo. */ |
| 3853 | #if !USE_REL /* put in for learning purposes */ |
| 3854 | code = 0xfe000000; |
| 3855 | #else |
| 3856 | code = 0xfe000000 + ((addend >> 2) & 0xffffff); |
| 3857 | #endif |
| 3858 | to_delete = nop_p ? 8 : 4; |
| 3859 | } |
| 3860 | |
| 3861 | bfd_put_32 (abfd, code, contents + irel->r_offset); |
| 3862 | |
| 3863 | /* Set the new reloc type. */ |
| 3864 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info), |
| 3865 | bl8_p ? R_M32R_10_PCREL : R_M32R_26_PCREL); |
| 3866 | |
| 3867 | /* Delete the add3 reloc by making it a null reloc. */ |
| 3868 | nrel->r_info = ELF32_R_INFO (ELF32_R_SYM (nrel->r_info), |
| 3869 | R_M32R_NONE); |
| 3870 | } |
| 3871 | else if (addend >= 0 |
| 3872 | && symval + addend <= 0xffffff) |
| 3873 | { |
| 3874 | /* We can relax to ld24. */ |
| 3875 | |
| 3876 | code = 0xe0000000 | (reg << 24) | (addend & 0xffffff); |
| 3877 | bfd_put_32 (abfd, code, contents + irel->r_offset); |
| 3878 | to_delete = 4; |
| 3879 | /* Tell the following code a nop filler isn't needed. */ |
| 3880 | nop_p = 1; |
| 3881 | } |
| 3882 | else |
| 3883 | { |
| 3884 | /* Can't do anything here. */ |
| 3885 | continue; |
| 3886 | } |
| 3887 | |
| 3888 | /* Note that we've changed the relocs, section contents, etc. */ |
| 3889 | elf_section_data (sec)->relocs = internal_relocs; |
| 3890 | elf_section_data (sec)->this_hdr.contents = contents; |
| 3891 | symtab_hdr->contents = (unsigned char *) isymbuf; |
| 3892 | |
| 3893 | /* Delete TO_DELETE bytes of data. */ |
| 3894 | if (!m32r_elf_relax_delete_bytes (abfd, sec, |
| 3895 | irel->r_offset + 4, to_delete)) |
| 3896 | goto error_return; |
| 3897 | |
| 3898 | /* Now that the following bytes have been moved into place, see if |
| 3899 | we need to replace the jl with a nop. This happens when we had |
| 3900 | to use a bl24 insn and the insn following the jl isn't a nop. |
| 3901 | Technically, this situation can't happen (since the insn can |
| 3902 | never be executed) but to be clean we do this. When the chip |
| 3903 | supports parallel 16 bit insns things may change. |
| 3904 | We don't need to do this in the case of relaxing to ld24, |
| 3905 | and the above code sets nop_p so this isn't done. */ |
| 3906 | if (! nop_p && to_delete == 4) |
| 3907 | bfd_put_16 (abfd, NOP_INSN, contents + irel->r_offset + 4); |
| 3908 | |
| 3909 | /* That will change things, so we should relax again. |
| 3910 | Note that this is not required, and it may be slow. */ |
| 3911 | *again = TRUE; |
| 3912 | |
| 3913 | continue; |
| 3914 | } |
| 3915 | |
| 3916 | /* loop to try the next reloc */ |
| 3917 | } |
| 3918 | |
| 3919 | if (isymbuf != NULL |
| 3920 | && symtab_hdr->contents != (unsigned char *) isymbuf) |
| 3921 | { |
| 3922 | if (! link_info->keep_memory) |
| 3923 | free (isymbuf); |
| 3924 | else |
| 3925 | { |
| 3926 | /* Cache the symbols for elf_link_input_bfd. */ |
| 3927 | symtab_hdr->contents = (unsigned char *) isymbuf; |
| 3928 | } |
| 3929 | } |
| 3930 | |
| 3931 | if (contents != NULL |
| 3932 | && elf_section_data (sec)->this_hdr.contents != contents) |
| 3933 | { |
| 3934 | if (! link_info->keep_memory) |
| 3935 | free (contents); |
| 3936 | else |
| 3937 | { |
| 3938 | /* Cache the section contents for elf_link_input_bfd. */ |
| 3939 | elf_section_data (sec)->this_hdr.contents = contents; |
| 3940 | } |
| 3941 | } |
| 3942 | |
| 3943 | if (internal_relocs != NULL |
| 3944 | && elf_section_data (sec)->relocs != internal_relocs) |
| 3945 | free (internal_relocs); |
| 3946 | |
| 3947 | return TRUE; |
| 3948 | |
| 3949 | error_return: |
| 3950 | if (isymbuf != NULL |
| 3951 | && symtab_hdr->contents != (unsigned char *) isymbuf) |
| 3952 | free (isymbuf); |
| 3953 | if (contents != NULL |
| 3954 | && elf_section_data (sec)->this_hdr.contents != contents) |
| 3955 | free (contents); |
| 3956 | if (internal_relocs != NULL |
| 3957 | && elf_section_data (sec)->relocs != internal_relocs) |
| 3958 | free (internal_relocs); |
| 3959 | |
| 3960 | return FALSE; |
| 3961 | } |
| 3962 | |
| 3963 | /* Delete some bytes from a section while relaxing. */ |
| 3964 | |
| 3965 | static bfd_boolean |
| 3966 | m32r_elf_relax_delete_bytes (abfd, sec, addr, count) |
| 3967 | bfd *abfd; |
| 3968 | asection *sec; |
| 3969 | bfd_vma addr; |
| 3970 | int count; |
| 3971 | { |
| 3972 | Elf_Internal_Shdr *symtab_hdr; |
| 3973 | int shndx; |
| 3974 | bfd_byte *contents; |
| 3975 | Elf_Internal_Rela *irel, *irelend; |
| 3976 | Elf_Internal_Rela *irelalign; |
| 3977 | bfd_vma toaddr; |
| 3978 | Elf_Internal_Sym *isym, *isymend; |
| 3979 | struct elf_link_hash_entry **sym_hashes; |
| 3980 | struct elf_link_hash_entry **end_hashes; |
| 3981 | unsigned int symcount; |
| 3982 | |
| 3983 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); |
| 3984 | |
| 3985 | contents = elf_section_data (sec)->this_hdr.contents; |
| 3986 | |
| 3987 | /* The deletion must stop at the next ALIGN reloc for an aligment |
| 3988 | power larger than the number of bytes we are deleting. */ |
| 3989 | |
| 3990 | irelalign = NULL; |
| 3991 | toaddr = sec->size; |
| 3992 | |
| 3993 | irel = elf_section_data (sec)->relocs; |
| 3994 | irelend = irel + sec->reloc_count; |
| 3995 | |
| 3996 | /* Actually delete the bytes. */ |
| 3997 | memmove (contents + addr, contents + addr + count, toaddr - addr - count); |
| 3998 | sec->size -= count; |
| 3999 | |
| 4000 | /* Adjust all the relocs. */ |
| 4001 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) |
| 4002 | { |
| 4003 | /* Get the new reloc address. */ |
| 4004 | if ((irel->r_offset > addr |
| 4005 | && irel->r_offset < toaddr)) |
| 4006 | irel->r_offset -= count; |
| 4007 | } |
| 4008 | |
| 4009 | /* Adjust the local symbols defined in this section. */ |
| 4010 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 4011 | isym = (Elf_Internal_Sym *) symtab_hdr->contents; |
| 4012 | for (isymend = isym + symtab_hdr->sh_info; isym < isymend; isym++) |
| 4013 | { |
| 4014 | if (isym->st_shndx == shndx |
| 4015 | && isym->st_value > addr |
| 4016 | && isym->st_value < toaddr) |
| 4017 | isym->st_value -= count; |
| 4018 | } |
| 4019 | |
| 4020 | /* Now adjust the global symbols defined in this section. */ |
| 4021 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
| 4022 | - symtab_hdr->sh_info); |
| 4023 | sym_hashes = elf_sym_hashes (abfd); |
| 4024 | end_hashes = sym_hashes + symcount; |
| 4025 | for (; sym_hashes < end_hashes; sym_hashes++) |
| 4026 | { |
| 4027 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
| 4028 | |
| 4029 | if ((sym_hash->root.type == bfd_link_hash_defined |
| 4030 | || sym_hash->root.type == bfd_link_hash_defweak) |
| 4031 | && sym_hash->root.u.def.section == sec |
| 4032 | && sym_hash->root.u.def.value > addr |
| 4033 | && sym_hash->root.u.def.value < toaddr) |
| 4034 | { |
| 4035 | sym_hash->root.u.def.value -= count; |
| 4036 | } |
| 4037 | } |
| 4038 | |
| 4039 | return TRUE; |
| 4040 | } |
| 4041 | |
| 4042 | /* This is a version of bfd_generic_get_relocated_section_contents |
| 4043 | which uses m32r_elf_relocate_section. */ |
| 4044 | |
| 4045 | static bfd_byte * |
| 4046 | m32r_elf_get_relocated_section_contents (output_bfd, link_info, link_order, |
| 4047 | data, relocatable, symbols) |
| 4048 | bfd *output_bfd; |
| 4049 | struct bfd_link_info *link_info; |
| 4050 | struct bfd_link_order *link_order; |
| 4051 | bfd_byte *data; |
| 4052 | bfd_boolean relocatable; |
| 4053 | asymbol **symbols; |
| 4054 | { |
| 4055 | Elf_Internal_Shdr *symtab_hdr; |
| 4056 | asection *input_section = link_order->u.indirect.section; |
| 4057 | bfd *input_bfd = input_section->owner; |
| 4058 | asection **sections = NULL; |
| 4059 | Elf_Internal_Rela *internal_relocs = NULL; |
| 4060 | Elf_Internal_Sym *isymbuf = NULL; |
| 4061 | bfd_size_type amt; |
| 4062 | |
| 4063 | /* We only need to handle the case of relaxing, or of having a |
| 4064 | particular set of section contents, specially. */ |
| 4065 | if (relocatable |
| 4066 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
| 4067 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, |
| 4068 | link_order, data, |
| 4069 | relocatable, |
| 4070 | symbols); |
| 4071 | |
| 4072 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
| 4073 | |
| 4074 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, |
| 4075 | input_section->size); |
| 4076 | |
| 4077 | if ((input_section->flags & SEC_RELOC) != 0 |
| 4078 | && input_section->reloc_count > 0) |
| 4079 | { |
| 4080 | Elf_Internal_Sym *isymp; |
| 4081 | asection **secpp; |
| 4082 | Elf32_External_Sym *esym, *esymend; |
| 4083 | |
| 4084 | internal_relocs = (_bfd_elf_link_read_relocs |
| 4085 | (input_bfd, input_section, (PTR) NULL, |
| 4086 | (Elf_Internal_Rela *) NULL, FALSE)); |
| 4087 | if (internal_relocs == NULL) |
| 4088 | goto error_return; |
| 4089 | |
| 4090 | if (symtab_hdr->sh_info != 0) |
| 4091 | { |
| 4092 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
| 4093 | if (isymbuf == NULL) |
| 4094 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, |
| 4095 | symtab_hdr->sh_info, 0, |
| 4096 | NULL, NULL, NULL); |
| 4097 | if (isymbuf == NULL) |
| 4098 | goto error_return; |
| 4099 | } |
| 4100 | |
| 4101 | amt = symtab_hdr->sh_info; |
| 4102 | amt *= sizeof (asection *); |
| 4103 | sections = (asection **) bfd_malloc (amt); |
| 4104 | if (sections == NULL && symtab_hdr->sh_info > 0) |
| 4105 | goto error_return; |
| 4106 | |
| 4107 | isymend = isymbuf + symtab_hdr->sh_info; |
| 4108 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) |
| 4109 | { |
| 4110 | asection *isec; |
| 4111 | |
| 4112 | if (isym->st_shndx == SHN_UNDEF) |
| 4113 | isec = bfd_und_section_ptr; |
| 4114 | else if (isym->st_shndx == SHN_ABS) |
| 4115 | isec = bfd_abs_section_ptr; |
| 4116 | else if (isym->st_shndx == SHN_COMMON) |
| 4117 | isec = bfd_com_section_ptr; |
| 4118 | else if (isym->st_shndx == SHN_M32R_SCOMMON) |
| 4119 | isec = &m32r_elf_scom_section; |
| 4120 | else |
| 4121 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
| 4122 | |
| 4123 | *secpp = isec; |
| 4124 | } |
| 4125 | |
| 4126 | if (! m32r_elf_relocate_section (output_bfd, link_info, input_bfd, |
| 4127 | input_section, data, internal_relocs, |
| 4128 | isymbuf, sections)) |
| 4129 | goto error_return; |
| 4130 | |
| 4131 | if (sections != NULL) |
| 4132 | free (sections); |
| 4133 | if (isymbuf != NULL |
| 4134 | && symtab_hdr->contents != (unsigned char *) isymbuf) |
| 4135 | free (isymbuf); |
| 4136 | if (elf_section_data (input_section)->relocs != internal_relocs) |
| 4137 | free (internal_relocs); |
| 4138 | } |
| 4139 | |
| 4140 | return data; |
| 4141 | |
| 4142 | error_return: |
| 4143 | if (sections != NULL) |
| 4144 | free (sections); |
| 4145 | if (isymbuf != NULL |
| 4146 | && symtab_hdr->contents != (unsigned char *) isymbuf) |
| 4147 | free (isymbuf); |
| 4148 | if (internal_relocs != NULL |
| 4149 | && elf_section_data (input_section)->relocs != internal_relocs) |
| 4150 | free (internal_relocs); |
| 4151 | return NULL; |
| 4152 | } |
| 4153 | |
| 4154 | #endif /* #if 0 */ |
| 4155 | \f |
| 4156 | /* Set the right machine number. */ |
| 4157 | static bfd_boolean |
| 4158 | m32r_elf_object_p (abfd) |
| 4159 | bfd *abfd; |
| 4160 | { |
| 4161 | switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH) |
| 4162 | { |
| 4163 | default: |
| 4164 | case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break; |
| 4165 | case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break; |
| 4166 | case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break; |
| 4167 | } |
| 4168 | return TRUE; |
| 4169 | } |
| 4170 | |
| 4171 | /* Store the machine number in the flags field. */ |
| 4172 | static void |
| 4173 | m32r_elf_final_write_processing (abfd, linker) |
| 4174 | bfd *abfd; |
| 4175 | bfd_boolean linker ATTRIBUTE_UNUSED; |
| 4176 | { |
| 4177 | unsigned long val; |
| 4178 | |
| 4179 | switch (bfd_get_mach (abfd)) |
| 4180 | { |
| 4181 | default: |
| 4182 | case bfd_mach_m32r: val = E_M32R_ARCH; break; |
| 4183 | case bfd_mach_m32rx: val = E_M32RX_ARCH; break; |
| 4184 | case bfd_mach_m32r2: val = E_M32R2_ARCH; break; |
| 4185 | } |
| 4186 | |
| 4187 | elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH; |
| 4188 | elf_elfheader (abfd)->e_flags |= val; |
| 4189 | } |
| 4190 | |
| 4191 | /* Function to keep M32R specific file flags. */ |
| 4192 | static bfd_boolean |
| 4193 | m32r_elf_set_private_flags (abfd, flags) |
| 4194 | bfd *abfd; |
| 4195 | flagword flags; |
| 4196 | { |
| 4197 | BFD_ASSERT (!elf_flags_init (abfd) |
| 4198 | || elf_elfheader (abfd)->e_flags == flags); |
| 4199 | |
| 4200 | elf_elfheader (abfd)->e_flags = flags; |
| 4201 | elf_flags_init (abfd) = TRUE; |
| 4202 | return TRUE; |
| 4203 | } |
| 4204 | |
| 4205 | /* Merge backend specific data from an object file to the output |
| 4206 | object file when linking. */ |
| 4207 | static bfd_boolean |
| 4208 | m32r_elf_merge_private_bfd_data (ibfd, obfd) |
| 4209 | bfd *ibfd; |
| 4210 | bfd *obfd; |
| 4211 | { |
| 4212 | flagword out_flags; |
| 4213 | flagword in_flags; |
| 4214 | |
| 4215 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| 4216 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| 4217 | return TRUE; |
| 4218 | |
| 4219 | in_flags = elf_elfheader (ibfd)->e_flags; |
| 4220 | out_flags = elf_elfheader (obfd)->e_flags; |
| 4221 | |
| 4222 | if (! elf_flags_init (obfd)) |
| 4223 | { |
| 4224 | /* If the input is the default architecture then do not |
| 4225 | bother setting the flags for the output architecture, |
| 4226 | instead allow future merges to do this. If no future |
| 4227 | merges ever set these flags then they will retain their |
| 4228 | unitialised values, which surprise surprise, correspond |
| 4229 | to the default values. */ |
| 4230 | if (bfd_get_arch_info (ibfd)->the_default) |
| 4231 | return TRUE; |
| 4232 | |
| 4233 | elf_flags_init (obfd) = TRUE; |
| 4234 | elf_elfheader (obfd)->e_flags = in_flags; |
| 4235 | |
| 4236 | if (bfd_get_arch (obfd) == bfd_get_arch (ibfd) |
| 4237 | && bfd_get_arch_info (obfd)->the_default) |
| 4238 | { |
| 4239 | return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); |
| 4240 | } |
| 4241 | |
| 4242 | return TRUE; |
| 4243 | } |
| 4244 | |
| 4245 | /* Check flag compatibility. */ |
| 4246 | if (in_flags == out_flags) |
| 4247 | return TRUE; |
| 4248 | |
| 4249 | if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH)) |
| 4250 | { |
| 4251 | if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH) |
| 4252 | || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH) |
| 4253 | || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH)) |
| 4254 | { |
| 4255 | (*_bfd_error_handler) |
| 4256 | (_("%B: Instruction set mismatch with previous modules"), ibfd); |
| 4257 | |
| 4258 | bfd_set_error (bfd_error_bad_value); |
| 4259 | return FALSE; |
| 4260 | } |
| 4261 | } |
| 4262 | |
| 4263 | return TRUE; |
| 4264 | } |
| 4265 | |
| 4266 | /* Display the flags field */ |
| 4267 | static bfd_boolean |
| 4268 | m32r_elf_print_private_bfd_data (abfd, ptr) |
| 4269 | bfd *abfd; |
| 4270 | PTR ptr; |
| 4271 | { |
| 4272 | FILE * file = (FILE *) ptr; |
| 4273 | |
| 4274 | BFD_ASSERT (abfd != NULL && ptr != NULL); |
| 4275 | |
| 4276 | _bfd_elf_print_private_bfd_data (abfd, ptr); |
| 4277 | |
| 4278 | fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags); |
| 4279 | |
| 4280 | switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH) |
| 4281 | { |
| 4282 | default: |
| 4283 | case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break; |
| 4284 | case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break; |
| 4285 | case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break; |
| 4286 | } |
| 4287 | |
| 4288 | fputc ('\n', file); |
| 4289 | |
| 4290 | return TRUE; |
| 4291 | } |
| 4292 | |
| 4293 | asection * |
| 4294 | m32r_elf_gc_mark_hook (sec, info, rel, h, sym) |
| 4295 | asection *sec; |
| 4296 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 4297 | Elf_Internal_Rela *rel; |
| 4298 | struct elf_link_hash_entry *h; |
| 4299 | Elf_Internal_Sym *sym; |
| 4300 | { |
| 4301 | if (h != NULL) |
| 4302 | { |
| 4303 | switch (ELF32_R_TYPE (rel->r_info)) |
| 4304 | { |
| 4305 | case R_M32R_GNU_VTINHERIT: |
| 4306 | case R_M32R_GNU_VTENTRY: |
| 4307 | case R_M32R_RELA_GNU_VTINHERIT: |
| 4308 | case R_M32R_RELA_GNU_VTENTRY: |
| 4309 | break; |
| 4310 | |
| 4311 | default: |
| 4312 | switch (h->root.type) |
| 4313 | { |
| 4314 | case bfd_link_hash_defined: |
| 4315 | case bfd_link_hash_defweak: |
| 4316 | return h->root.u.def.section; |
| 4317 | |
| 4318 | case bfd_link_hash_common: |
| 4319 | return h->root.u.c.p->section; |
| 4320 | |
| 4321 | default: |
| 4322 | break; |
| 4323 | } |
| 4324 | } |
| 4325 | } |
| 4326 | else |
| 4327 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
| 4328 | |
| 4329 | return NULL; |
| 4330 | } |
| 4331 | |
| 4332 | static bfd_boolean |
| 4333 | m32r_elf_gc_sweep_hook (abfd, info, sec, relocs) |
| 4334 | bfd *abfd ATTRIBUTE_UNUSED; |
| 4335 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 4336 | asection *sec ATTRIBUTE_UNUSED; |
| 4337 | const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED; |
| 4338 | { |
| 4339 | /* Update the got entry reference counts for the section being removed. */ |
| 4340 | Elf_Internal_Shdr *symtab_hdr; |
| 4341 | struct elf_link_hash_entry **sym_hashes; |
| 4342 | bfd_signed_vma *local_got_refcounts; |
| 4343 | const Elf_Internal_Rela *rel, *relend; |
| 4344 | unsigned long r_symndx; |
| 4345 | struct elf_link_hash_entry *h; |
| 4346 | |
| 4347 | elf_section_data (sec)->local_dynrel = NULL; |
| 4348 | |
| 4349 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 4350 | sym_hashes = elf_sym_hashes (abfd); |
| 4351 | local_got_refcounts = elf_local_got_refcounts (abfd); |
| 4352 | |
| 4353 | relend = relocs + sec->reloc_count; |
| 4354 | for (rel = relocs; rel < relend; rel++) |
| 4355 | switch (ELF32_R_TYPE (rel->r_info)) |
| 4356 | { |
| 4357 | case R_M32R_GOT16_HI_ULO: |
| 4358 | case R_M32R_GOT16_HI_SLO: |
| 4359 | case R_M32R_GOT16_LO: |
| 4360 | case R_M32R_GOTOFF: |
| 4361 | case R_M32R_GOTOFF_HI_ULO: |
| 4362 | case R_M32R_GOTOFF_HI_SLO: |
| 4363 | case R_M32R_GOTOFF_LO: |
| 4364 | case R_M32R_GOT24: |
| 4365 | case R_M32R_GOTPC_HI_ULO: |
| 4366 | case R_M32R_GOTPC_HI_SLO: |
| 4367 | case R_M32R_GOTPC_LO: |
| 4368 | case R_M32R_GOTPC24: |
| 4369 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 4370 | if (r_symndx >= symtab_hdr->sh_info) |
| 4371 | { |
| 4372 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 4373 | if (h->got.refcount > 0) |
| 4374 | h->got.refcount--; |
| 4375 | } |
| 4376 | else |
| 4377 | { |
| 4378 | if (local_got_refcounts && local_got_refcounts[r_symndx] > 0) |
| 4379 | local_got_refcounts[r_symndx]--; |
| 4380 | } |
| 4381 | break; |
| 4382 | |
| 4383 | case R_M32R_16_RELA: |
| 4384 | case R_M32R_24_RELA: |
| 4385 | case R_M32R_32_RELA: |
| 4386 | case R_M32R_HI16_ULO_RELA: |
| 4387 | case R_M32R_HI16_SLO_RELA: |
| 4388 | case R_M32R_LO16_RELA: |
| 4389 | case R_M32R_SDA16_RELA: |
| 4390 | case R_M32R_18_PCREL_RELA: |
| 4391 | case R_M32R_26_PCREL_RELA: |
| 4392 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 4393 | if (r_symndx >= symtab_hdr->sh_info) |
| 4394 | { |
| 4395 | struct elf_m32r_link_hash_entry *eh; |
| 4396 | struct elf_m32r_dyn_relocs **pp; |
| 4397 | struct elf_m32r_dyn_relocs *p; |
| 4398 | |
| 4399 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 4400 | |
| 4401 | if (!info->shared && h->plt.refcount > 0) |
| 4402 | h->plt.refcount -= 1; |
| 4403 | |
| 4404 | eh = (struct elf_m32r_link_hash_entry *) h; |
| 4405 | |
| 4406 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) |
| 4407 | if (p->sec == sec) |
| 4408 | { |
| 4409 | if (ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA |
| 4410 | || ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA) |
| 4411 | p->pc_count -= 1; |
| 4412 | p->count -= 1; |
| 4413 | if (p->count == 0) |
| 4414 | *pp = p->next; |
| 4415 | break; |
| 4416 | } |
| 4417 | } |
| 4418 | break; |
| 4419 | |
| 4420 | case R_M32R_26_PLTREL: |
| 4421 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 4422 | if (r_symndx >= symtab_hdr->sh_info) |
| 4423 | { |
| 4424 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 4425 | if (h->plt.refcount > 0) |
| 4426 | h->plt.refcount--; |
| 4427 | } |
| 4428 | break; |
| 4429 | |
| 4430 | default: |
| 4431 | break; |
| 4432 | } |
| 4433 | |
| 4434 | return TRUE; |
| 4435 | } |
| 4436 | |
| 4437 | /* Look through the relocs for a section during the first phase. |
| 4438 | Since we don't do .gots or .plts, we just need to consider the |
| 4439 | virtual table relocs for gc. */ |
| 4440 | |
| 4441 | static bfd_boolean |
| 4442 | m32r_elf_check_relocs (abfd, info, sec, relocs) |
| 4443 | bfd *abfd; |
| 4444 | struct bfd_link_info *info; |
| 4445 | asection *sec; |
| 4446 | const Elf_Internal_Rela *relocs; |
| 4447 | { |
| 4448 | Elf_Internal_Shdr *symtab_hdr; |
| 4449 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; |
| 4450 | const Elf_Internal_Rela *rel; |
| 4451 | const Elf_Internal_Rela *rel_end; |
| 4452 | struct elf_m32r_link_hash_table *htab; |
| 4453 | bfd *dynobj; |
| 4454 | bfd_vma *local_got_offsets; |
| 4455 | asection *sgot, *srelgot, *sreloc; |
| 4456 | |
| 4457 | if (info->relocatable) |
| 4458 | return TRUE; |
| 4459 | |
| 4460 | sgot = srelgot = sreloc = NULL; |
| 4461 | |
| 4462 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| 4463 | sym_hashes = elf_sym_hashes (abfd); |
| 4464 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym); |
| 4465 | if (!elf_bad_symtab (abfd)) |
| 4466 | sym_hashes_end -= symtab_hdr->sh_info; |
| 4467 | |
| 4468 | htab = m32r_elf_hash_table (info); |
| 4469 | dynobj = htab->root.dynobj; |
| 4470 | local_got_offsets = elf_local_got_offsets (abfd); |
| 4471 | |
| 4472 | rel_end = relocs + sec->reloc_count; |
| 4473 | for (rel = relocs; rel < rel_end; rel++) |
| 4474 | { |
| 4475 | int r_type; |
| 4476 | struct elf_link_hash_entry *h; |
| 4477 | unsigned long r_symndx; |
| 4478 | |
| 4479 | r_symndx = ELF32_R_SYM (rel->r_info); |
| 4480 | r_type = ELF32_R_TYPE (rel->r_info); |
| 4481 | if (r_symndx < symtab_hdr->sh_info) |
| 4482 | h = NULL; |
| 4483 | else |
| 4484 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| 4485 | |
| 4486 | /* Some relocs require a global offset table. */ |
| 4487 | if (htab->sgot == NULL) |
| 4488 | { |
| 4489 | switch (r_type) |
| 4490 | { |
| 4491 | case R_M32R_GOT16_HI_ULO: |
| 4492 | case R_M32R_GOT16_HI_SLO: |
| 4493 | case R_M32R_GOTOFF: |
| 4494 | case R_M32R_GOTOFF_HI_ULO: |
| 4495 | case R_M32R_GOTOFF_HI_SLO: |
| 4496 | case R_M32R_GOTOFF_LO: |
| 4497 | case R_M32R_GOT16_LO: |
| 4498 | case R_M32R_GOTPC24: |
| 4499 | case R_M32R_GOTPC_HI_ULO: |
| 4500 | case R_M32R_GOTPC_HI_SLO: |
| 4501 | case R_M32R_GOTPC_LO: |
| 4502 | case R_M32R_GOT24: |
| 4503 | if (dynobj == NULL) |
| 4504 | htab->root.dynobj = dynobj = abfd; |
| 4505 | if (! create_got_section (dynobj, info)) |
| 4506 | return FALSE; |
| 4507 | break; |
| 4508 | |
| 4509 | default: |
| 4510 | break; |
| 4511 | } |
| 4512 | } |
| 4513 | |
| 4514 | switch (r_type) |
| 4515 | { |
| 4516 | case R_M32R_GOT16_HI_ULO: |
| 4517 | case R_M32R_GOT16_HI_SLO: |
| 4518 | case R_M32R_GOT16_LO: |
| 4519 | case R_M32R_GOT24: |
| 4520 | |
| 4521 | if (h != NULL) |
| 4522 | h->got.refcount += 1; |
| 4523 | else |
| 4524 | { |
| 4525 | bfd_signed_vma *local_got_refcounts; |
| 4526 | |
| 4527 | /* This is a global offset table entry for a local |
| 4528 | symbol. */ |
| 4529 | local_got_refcounts = elf_local_got_refcounts (abfd); |
| 4530 | if (local_got_refcounts == NULL) |
| 4531 | { |
| 4532 | bfd_size_type size; |
| 4533 | |
| 4534 | size = symtab_hdr->sh_info; |
| 4535 | size *= sizeof (bfd_signed_vma); |
| 4536 | local_got_refcounts = ((bfd_signed_vma *) |
| 4537 | bfd_zalloc (abfd, size)); |
| 4538 | if (local_got_refcounts == NULL) |
| 4539 | return FALSE; |
| 4540 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
| 4541 | } |
| 4542 | local_got_refcounts[r_symndx] += 1; |
| 4543 | } |
| 4544 | break; |
| 4545 | |
| 4546 | case R_M32R_26_PLTREL: |
| 4547 | /* This symbol requires a procedure linkage table entry. We |
| 4548 | actually build the entry in adjust_dynamic_symbol, |
| 4549 | because this might be a case of linking PIC code without |
| 4550 | linking in any dynamic objects, in which case we don't |
| 4551 | need to generate a procedure linkage table after all. */ |
| 4552 | |
| 4553 | /* If this is a local symbol, we resolve it directly without |
| 4554 | creating a procedure linkage table entry. */ |
| 4555 | if (h == NULL) |
| 4556 | continue; |
| 4557 | |
| 4558 | if (h->forced_local) |
| 4559 | break; |
| 4560 | |
| 4561 | h->needs_plt = 1; |
| 4562 | h->plt.refcount += 1; |
| 4563 | break; |
| 4564 | |
| 4565 | case R_M32R_16_RELA: |
| 4566 | case R_M32R_24_RELA: |
| 4567 | case R_M32R_32_RELA: |
| 4568 | case R_M32R_HI16_ULO_RELA: |
| 4569 | case R_M32R_HI16_SLO_RELA: |
| 4570 | case R_M32R_LO16_RELA: |
| 4571 | case R_M32R_SDA16_RELA: |
| 4572 | case R_M32R_18_PCREL_RELA: |
| 4573 | case R_M32R_26_PCREL_RELA: |
| 4574 | |
| 4575 | if (h != NULL && !info->shared) |
| 4576 | { |
| 4577 | h->non_got_ref = 1; |
| 4578 | h->plt.refcount += 1; |
| 4579 | } |
| 4580 | |
| 4581 | /* If we are creating a shared library, and this is a reloc |
| 4582 | against a global symbol, or a non PC relative reloc |
| 4583 | against a local symbol, then we need to copy the reloc |
| 4584 | into the shared library. However, if we are linking with |
| 4585 | -Bsymbolic, we do not need to copy a reloc against a |
| 4586 | global symbol which is defined in an object we are |
| 4587 | including in the link (i.e., DEF_REGULAR is set). At |
| 4588 | this point we have not seen all the input files, so it is |
| 4589 | possible that DEF_REGULAR is not set now but will be set |
| 4590 | later (it is never cleared). We account for that |
| 4591 | possibility below by storing information in the |
| 4592 | dyn_relocs field of the hash table entry. A similar |
| 4593 | situation occurs when creating shared libraries and symbol |
| 4594 | visibility changes render the symbol local. |
| 4595 | |
| 4596 | If on the other hand, we are creating an executable, we |
| 4597 | may need to keep relocations for symbols satisfied by a |
| 4598 | dynamic library if we manage to avoid copy relocs for the |
| 4599 | symbol. */ |
| 4600 | if ((info->shared |
| 4601 | && (sec->flags & SEC_ALLOC) != 0 |
| 4602 | && ((r_type != R_M32R_26_PCREL_RELA |
| 4603 | && r_type != R_M32R_18_PCREL_RELA) |
| 4604 | || (h != NULL |
| 4605 | && (! info->symbolic |
| 4606 | || h->root.type == bfd_link_hash_defweak |
| 4607 | || !h->def_regular)))) |
| 4608 | || (!info->shared |
| 4609 | && (sec->flags & SEC_ALLOC) != 0 |
| 4610 | && h != NULL |
| 4611 | && (h->root.type == bfd_link_hash_defweak |
| 4612 | || !h->def_regular))) |
| 4613 | { |
| 4614 | struct elf_m32r_dyn_relocs *p; |
| 4615 | struct elf_m32r_dyn_relocs **head; |
| 4616 | |
| 4617 | if (dynobj == NULL) |
| 4618 | htab->root.dynobj = dynobj = abfd; |
| 4619 | |
| 4620 | /* When creating a shared object, we must copy these |
| 4621 | relocs into the output file. We create a reloc |
| 4622 | section in dynobj and make room for the reloc. */ |
| 4623 | if (sreloc == NULL) |
| 4624 | { |
| 4625 | const char *name; |
| 4626 | |
| 4627 | name = (bfd_elf_string_from_elf_section |
| 4628 | (abfd, |
| 4629 | elf_elfheader (abfd)->e_shstrndx, |
| 4630 | elf_section_data (sec)->rel_hdr.sh_name)); |
| 4631 | if (name == NULL) |
| 4632 | return FALSE; |
| 4633 | |
| 4634 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 |
| 4635 | && strcmp (bfd_get_section_name (abfd, sec), |
| 4636 | name + 5) == 0); |
| 4637 | |
| 4638 | sreloc = bfd_get_section_by_name (dynobj, name); |
| 4639 | if (sreloc == NULL) |
| 4640 | { |
| 4641 | flagword flags; |
| 4642 | |
| 4643 | sreloc = bfd_make_section (dynobj, name); |
| 4644 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
| 4645 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); |
| 4646 | if ((sec->flags & SEC_ALLOC) != 0) |
| 4647 | flags |= SEC_ALLOC | SEC_LOAD; |
| 4648 | if (sreloc == NULL |
| 4649 | || ! bfd_set_section_flags (dynobj, sreloc, flags) |
| 4650 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
| 4651 | return FALSE; |
| 4652 | } |
| 4653 | elf_section_data (sec)->sreloc = sreloc; |
| 4654 | } |
| 4655 | |
| 4656 | /* If this is a global symbol, we count the number of |
| 4657 | relocations we need for this symbol. */ |
| 4658 | if (h != NULL) |
| 4659 | head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs; |
| 4660 | else |
| 4661 | { |
| 4662 | asection *s; |
| 4663 | |
| 4664 | /* Track dynamic relocs needed for local syms too. */ |
| 4665 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
| 4666 | sec, r_symndx); |
| 4667 | if (s == NULL) |
| 4668 | return FALSE; |
| 4669 | |
| 4670 | head = ((struct elf_m32r_dyn_relocs **) |
| 4671 | &elf_section_data (s)->local_dynrel); |
| 4672 | } |
| 4673 | |
| 4674 | p = *head; |
| 4675 | if (p == NULL || p->sec != sec) |
| 4676 | { |
| 4677 | bfd_size_type amt = sizeof (*p); |
| 4678 | p = ((struct elf_m32r_dyn_relocs *) bfd_alloc (dynobj, amt)); |
| 4679 | if (p == NULL) |
| 4680 | return FALSE; |
| 4681 | p->next = *head; |
| 4682 | *head = p; |
| 4683 | p->sec = sec; |
| 4684 | p->count = 0; |
| 4685 | p->pc_count = 0; |
| 4686 | } |
| 4687 | |
| 4688 | p->count += 1; |
| 4689 | if (ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA |
| 4690 | || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA) |
| 4691 | p->pc_count += 1; |
| 4692 | } |
| 4693 | break; |
| 4694 | |
| 4695 | /* This relocation describes the C++ object vtable hierarchy. |
| 4696 | Reconstruct it for later use during GC. */ |
| 4697 | case R_M32R_RELA_GNU_VTINHERIT: |
| 4698 | case R_M32R_GNU_VTINHERIT: |
| 4699 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| 4700 | return FALSE; |
| 4701 | break; |
| 4702 | |
| 4703 | /* This relocation describes which C++ vtable entries are actually |
| 4704 | used. Record for later use during GC. */ |
| 4705 | case R_M32R_GNU_VTENTRY: |
| 4706 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) |
| 4707 | return FALSE; |
| 4708 | break; |
| 4709 | case R_M32R_RELA_GNU_VTENTRY: |
| 4710 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
| 4711 | return FALSE; |
| 4712 | break; |
| 4713 | } |
| 4714 | } |
| 4715 | |
| 4716 | return TRUE; |
| 4717 | } |
| 4718 | |
| 4719 | static struct bfd_elf_special_section const m32r_elf_special_sections[]= |
| 4720 | { |
| 4721 | { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 4722 | { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
| 4723 | { NULL, 0, 0, 0, 0 } |
| 4724 | }; |
| 4725 | |
| 4726 | static bfd_boolean |
| 4727 | m32r_elf_fake_sections (abfd, hdr, sec) |
| 4728 | bfd *abfd; |
| 4729 | Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED; |
| 4730 | asection *sec; |
| 4731 | { |
| 4732 | register const char *name; |
| 4733 | |
| 4734 | name = bfd_get_section_name (abfd, sec); |
| 4735 | |
| 4736 | /* The generic elf_fake_sections will set up REL_HDR using the |
| 4737 | default kind of relocations. But, we may actually need both |
| 4738 | kinds of relocations, so we set up the second header here. |
| 4739 | |
| 4740 | This is not necessary for the O32 ABI since that only uses Elf32_Rel |
| 4741 | relocations (cf. System V ABI, MIPS RISC Processor Supplement, |
| 4742 | 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one |
| 4743 | of the resulting empty .rela.<section> sections starts with |
| 4744 | sh_offset == object size, and ld doesn't allow that. While the check |
| 4745 | is arguably bogus for empty or SHT_NOBITS sections, it can easily be |
| 4746 | avoided by not emitting those useless sections in the first place. */ |
| 4747 | if ((sec->flags & SEC_RELOC) != 0) |
| 4748 | { |
| 4749 | struct bfd_elf_section_data *esd; |
| 4750 | bfd_size_type amt = sizeof (Elf_Internal_Shdr); |
| 4751 | |
| 4752 | esd = elf_section_data (sec); |
| 4753 | BFD_ASSERT (esd->rel_hdr2 == NULL); |
| 4754 | esd->rel_hdr2 = (Elf_Internal_Shdr *) bfd_zalloc (abfd, amt); |
| 4755 | if (!esd->rel_hdr2) |
| 4756 | return FALSE; |
| 4757 | _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec, |
| 4758 | !sec->use_rela_p); |
| 4759 | } |
| 4760 | |
| 4761 | return TRUE; |
| 4762 | } |
| 4763 | |
| 4764 | static enum elf_reloc_type_class |
| 4765 | m32r_elf_reloc_type_class (rela) |
| 4766 | const Elf_Internal_Rela *rela; |
| 4767 | { |
| 4768 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
| 4769 | { |
| 4770 | case R_M32R_RELATIVE: |
| 4771 | return reloc_class_relative; |
| 4772 | case R_M32R_JMP_SLOT: |
| 4773 | return reloc_class_plt; |
| 4774 | case R_M32R_COPY: |
| 4775 | return reloc_class_copy; |
| 4776 | default: |
| 4777 | return reloc_class_normal; |
| 4778 | } |
| 4779 | } |
| 4780 | \f |
| 4781 | #define ELF_ARCH bfd_arch_m32r |
| 4782 | #define ELF_MACHINE_CODE EM_M32R |
| 4783 | #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R |
| 4784 | #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */ |
| 4785 | |
| 4786 | #define TARGET_BIG_SYM bfd_elf32_m32r_vec |
| 4787 | #define TARGET_BIG_NAME "elf32-m32r" |
| 4788 | #define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec |
| 4789 | #define TARGET_LITTLE_NAME "elf32-m32rle" |
| 4790 | |
| 4791 | #define elf_info_to_howto m32r_info_to_howto |
| 4792 | #define elf_info_to_howto_rel m32r_info_to_howto_rel |
| 4793 | #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section |
| 4794 | #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing |
| 4795 | #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook |
| 4796 | #define elf_backend_relocate_section m32r_elf_relocate_section |
| 4797 | #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook |
| 4798 | #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook |
| 4799 | #define elf_backend_check_relocs m32r_elf_check_relocs |
| 4800 | |
| 4801 | #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections |
| 4802 | #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create |
| 4803 | #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections |
| 4804 | #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections |
| 4805 | #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol |
| 4806 | #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol |
| 4807 | #define elf_backend_reloc_type_class m32r_elf_reloc_type_class |
| 4808 | #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol |
| 4809 | |
| 4810 | #define elf_backend_can_gc_sections 1 |
| 4811 | /*#if !USE_REL |
| 4812 | #define elf_backend_rela_normal 1 |
| 4813 | #endif*/ |
| 4814 | #define elf_backend_can_refcount 1 |
| 4815 | #define elf_backend_want_got_plt 1 |
| 4816 | #define elf_backend_plt_readonly 1 |
| 4817 | #define elf_backend_want_plt_sym 0 |
| 4818 | #define elf_backend_got_header_size 12 |
| 4819 | |
| 4820 | #define elf_backend_may_use_rel_p 1 |
| 4821 | #ifdef USE_M32R_OLD_RELOC |
| 4822 | #define elf_backend_default_use_rela_p 0 |
| 4823 | #define elf_backend_may_use_rela_p 0 |
| 4824 | #else |
| 4825 | #define elf_backend_default_use_rela_p 1 |
| 4826 | #define elf_backend_may_use_rela_p 1 |
| 4827 | #define elf_backend_fake_sections m32r_elf_fake_sections |
| 4828 | #endif |
| 4829 | |
| 4830 | #if 0 /* not yet */ |
| 4831 | /* relax support */ |
| 4832 | #define bfd_elf32_bfd_relax_section m32r_elf_relax_section |
| 4833 | #define bfd_elf32_bfd_get_relocated_section_contents \ |
| 4834 | m32r_elf_get_relocated_section_contents |
| 4835 | #endif |
| 4836 | |
| 4837 | #define elf_backend_object_p m32r_elf_object_p |
| 4838 | #define elf_backend_final_write_processing m32r_elf_final_write_processing |
| 4839 | #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data |
| 4840 | #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags |
| 4841 | #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data |
| 4842 | #define elf_backend_special_sections m32r_elf_special_sections |
| 4843 | |
| 4844 | #include "elf32-target.h" |
| 4845 | |
| 4846 | #undef ELF_MAXPAGESIZE |
| 4847 | #define ELF_MAXPAGESIZE 0x1000 |
| 4848 | |
| 4849 | #undef TARGET_BIG_SYM |
| 4850 | #define TARGET_BIG_SYM bfd_elf32_m32rlin_vec |
| 4851 | #undef TARGET_BIG_NAME |
| 4852 | #define TARGET_BIG_NAME "elf32-m32r-linux" |
| 4853 | #undef TARGET_LITTLE_SYM |
| 4854 | #define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec |
| 4855 | #undef TARGET_LITTLE_NAME |
| 4856 | #define TARGET_LITTLE_NAME "elf32-m32rle-linux" |
| 4857 | #undef elf32_bed |
| 4858 | #define elf32_bed elf32_m32r_lin_bed |
| 4859 | |
| 4860 | #include "elf32-target.h" |
| 4861 | |