bfd/elf32-cris.c

   1 /* CRIS-specific support for 32-bit ELF.
   2    Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
   3    Free Software Foundation, Inc.
   4    Contributed by Axis Communications AB.
   5    Written by Hans-Peter Nilsson, based on elf32-fr30.c
   6    PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c.
   7
   8    This file is part of BFD, the Binary File Descriptor library.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  23    MA 02110-1301, USA.  */
  24
  25 #include "sysdep.h"
  26 #include "bfd.h"
  27 #include "libbfd.h"
  28 #include "elf-bfd.h"
  29 #include "elf/cris.h"
  30 #include <limits.h>
  31
  32 /* Forward declarations.  */
  33 static reloc_howto_type * cris_reloc_type_lookup
  34   PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
  35
  36 static void cris_info_to_howto_rela
  37   PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
  38
  39 static bfd_reloc_status_type cris_elf_pcrel_reloc
  40   PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
  41
  42 static bfd_boolean cris_elf_grok_prstatus
  43   PARAMS ((bfd *abfd, Elf_Internal_Note *note));
  44
  45 static bfd_boolean cris_elf_grok_psinfo
  46   PARAMS ((bfd *abfd, Elf_Internal_Note *note));
  47
  48 static bfd_boolean cris_elf_relocate_section
  49   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
  50            Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
  51
  52 static bfd_reloc_status_type cris_final_link_relocate
  53   PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
  54            Elf_Internal_Rela *, bfd_vma));
  55
  56 static bfd_boolean cris_elf_object_p PARAMS ((bfd *));
  57
  58 static void cris_elf_final_write_processing PARAMS ((bfd *, bfd_boolean));
  59
  60 static bfd_boolean cris_elf_set_mach_from_flags
  61   PARAMS ((bfd *, unsigned long int));
  62
  63 static bfd_boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
  64
  65 static bfd_boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
  66 static bfd_boolean cris_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
  67
  68 struct elf_cris_link_hash_entry;
  69 static bfd_boolean elf_cris_discard_excess_dso_dynamics
  70   PARAMS ((struct elf_cris_link_hash_entry *, PTR));
  71 static bfd_boolean elf_cris_discard_excess_program_dynamics
  72   PARAMS ((struct elf_cris_link_hash_entry *, PTR));
  73 static bfd_boolean elf_cris_adjust_gotplt_to_got
  74   PARAMS ((struct elf_cris_link_hash_entry *, PTR));
  75 static bfd_boolean elf_cris_try_fold_plt_to_got
  76   PARAMS ((struct elf_cris_link_hash_entry *, PTR));
  77 static struct bfd_hash_entry *elf_cris_link_hash_newfunc
  78   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
  79 static struct bfd_link_hash_table *elf_cris_link_hash_table_create
  80   PARAMS ((bfd *));
  81 static bfd_boolean elf_cris_adjust_dynamic_symbol
  82   PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
  83 static bfd_boolean cris_elf_check_relocs
  84   PARAMS ((bfd *, struct bfd_link_info *, asection *,
  85            const Elf_Internal_Rela *));
  86
  87 static bfd_boolean elf_cris_size_dynamic_sections
  88   PARAMS ((bfd *, struct bfd_link_info *));
  89 static bfd_boolean elf_cris_finish_dynamic_symbol
  90   PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
  91            Elf_Internal_Sym *));
  92 static bfd_boolean elf_cris_finish_dynamic_sections
  93   PARAMS ((bfd *, struct bfd_link_info *));
  94 static void elf_cris_hide_symbol
  95   PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
  96 static enum elf_reloc_type_class elf_cris_reloc_type_class
  97   PARAMS ((const Elf_Internal_Rela *));
  98
  99 static reloc_howto_type cris_elf_howto_table [] =
 100 {
 101   /* This reloc does nothing.  */
 102   HOWTO (R_CRIS_NONE,           /* type */
 103          0,                     /* rightshift */
 104          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 105          32,                    /* bitsize */
 106          FALSE,                 /* pc_relative */
 107          0,                     /* bitpos */
 108          complain_overflow_bitfield, /* complain_on_overflow */
 109          bfd_elf_generic_reloc, /* special_function */
 110          "R_CRIS_NONE",         /* name */
 111          FALSE,                 /* partial_inplace */
 112          0,                     /* src_mask */
 113          0,                     /* dst_mask */
 114          FALSE),                /* pcrel_offset */
 115
 116   /* An 8 bit absolute relocation.  */
 117   HOWTO (R_CRIS_8,              /* type */
 118          0,                     /* rightshift */
 119          0,                     /* size (0 = byte, 1 = short, 2 = long) */
 120          8,                     /* bitsize */
 121          FALSE,                 /* pc_relative */
 122          0,                     /* bitpos */
 123          complain_overflow_bitfield, /* complain_on_overflow */
 124          bfd_elf_generic_reloc, /* special_function */
 125          "R_CRIS_8",            /* name */
 126          FALSE,                 /* partial_inplace */
 127          0x0000,                /* src_mask */
 128          0x00ff,                /* dst_mask */
 129          FALSE),                /* pcrel_offset */
 130
 131   /* A 16 bit absolute relocation.  */
 132   HOWTO (R_CRIS_16,             /* type */
 133          0,                     /* rightshift */
 134          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 135          16,                    /* bitsize */
 136          FALSE,                 /* pc_relative */
 137          0,                     /* bitpos */
 138          complain_overflow_bitfield, /* complain_on_overflow */
 139          bfd_elf_generic_reloc, /* special_function */
 140          "R_CRIS_16",           /* name */
 141          FALSE,                 /* partial_inplace */
 142          0x00000000,            /* src_mask */
 143          0x0000ffff,            /* dst_mask */
 144          FALSE),                /* pcrel_offset */
 145
 146   /* A 32 bit absolute relocation.  */
 147   HOWTO (R_CRIS_32,             /* type */
 148          0,                     /* rightshift */
 149          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 150          32,                    /* bitsize */
 151          FALSE,                 /* pc_relative */
 152          0,                     /* bitpos */
 153          /* We don't want overflow complaints for 64-bit vma builds
 154             for e.g. sym+0x40000000 (or actually sym-0xc0000000 in
 155             32-bit ELF) where sym=0xc0001234.
 156             Don't do this for the PIC relocs, as we don't expect to
 157             see them with large offsets.  */
 158          complain_overflow_dont, /* complain_on_overflow */
 159          bfd_elf_generic_reloc, /* special_function */
 160          "R_CRIS_32",           /* name */
 161          FALSE,                 /* partial_inplace */
 162          0x00000000,            /* src_mask */
 163          0xffffffff,            /* dst_mask */
 164          FALSE),                /* pcrel_offset */
 165
 166   /* An 8 bit PC-relative relocation.  */
 167   HOWTO (R_CRIS_8_PCREL,        /* type */
 168          0,                     /* rightshift */
 169          0,                     /* size (0 = byte, 1 = short, 2 = long) */
 170          8,                     /* bitsize */
 171          TRUE,                  /* pc_relative */
 172          0,                     /* bitpos */
 173          complain_overflow_bitfield, /* complain_on_overflow */
 174          cris_elf_pcrel_reloc,  /* special_function */
 175          "R_CRIS_8_PCREL",      /* name */
 176          FALSE,                 /* partial_inplace */
 177          0x0000,                /* src_mask */
 178          0x00ff,                /* dst_mask */
 179          TRUE),                 /* pcrel_offset */
 180
 181   /* A 16 bit PC-relative relocation.  */
 182   HOWTO (R_CRIS_16_PCREL,       /* type */
 183          0,                     /* rightshift */
 184          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 185          16,                    /* bitsize */
 186          TRUE,                  /* pc_relative */
 187          0,                     /* bitpos */
 188          complain_overflow_bitfield, /* complain_on_overflow */
 189          cris_elf_pcrel_reloc,  /* special_function */
 190          "R_CRIS_16_PCREL",     /* name */
 191          FALSE,                 /* partial_inplace */
 192          0x00000000,            /* src_mask */
 193          0x0000ffff,            /* dst_mask */
 194          TRUE),                 /* pcrel_offset */
 195
 196   /* A 32 bit PC-relative relocation.  */
 197   HOWTO (R_CRIS_32_PCREL,       /* type */
 198          0,                     /* rightshift */
 199          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 200          32,                    /* bitsize */
 201          TRUE,                  /* pc_relative */
 202          0,                     /* bitpos */
 203          complain_overflow_bitfield, /* complain_on_overflow */
 204          cris_elf_pcrel_reloc,  /* special_function */
 205          "R_CRIS_32_PCREL",     /* name */
 206          FALSE,                 /* partial_inplace */
 207          0x00000000,            /* src_mask */
 208          0xffffffff,            /* dst_mask */
 209          TRUE),                 /* pcrel_offset */
 210
 211   /* GNU extension to record C++ vtable hierarchy.  */
 212   HOWTO (R_CRIS_GNU_VTINHERIT,  /* type */
 213          0,                     /* rightshift */
 214          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 215          0,                     /* bitsize */
 216          FALSE,                 /* pc_relative */
 217          0,                     /* bitpos */
 218          complain_overflow_dont, /* complain_on_overflow */
 219          NULL,                  /* special_function */
 220          "R_CRIS_GNU_VTINHERIT", /* name */
 221          FALSE,                 /* partial_inplace */
 222          0,                     /* src_mask */
 223          0,                     /* dst_mask */
 224          FALSE),                /* pcrel_offset */
 225
 226   /* GNU extension to record C++ vtable member usage.  */
 227   HOWTO (R_CRIS_GNU_VTENTRY,    /* type */
 228          0,                     /* rightshift */
 229          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 230          0,                     /* bitsize */
 231          FALSE,                 /* pc_relative */
 232          0,                     /* bitpos */
 233          complain_overflow_dont, /* complain_on_overflow */
 234          _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
 235          "R_CRIS_GNU_VTENTRY",   /* name */
 236          FALSE,                 /* partial_inplace */
 237          0,                     /* src_mask */
 238          0,                     /* dst_mask */
 239          FALSE),                /* pcrel_offset */
 240
 241   /* This is used only by the dynamic linker.  The symbol should exist
 242      both in the object being run and in some shared library.  The
 243      dynamic linker copies the data addressed by the symbol from the
 244      shared library into the object, because the object being
 245      run has to have the data at some particular address.  */
 246   HOWTO (R_CRIS_COPY,           /* type */
 247          0,                     /* rightshift */
 248          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 249          32,                    /* bitsize */
 250          FALSE,                 /* pc_relative */
 251          0,                     /* bitpos */
 252          complain_overflow_bitfield, /* complain_on_overflow */
 253          bfd_elf_generic_reloc, /* special_function */
 254          "R_CRIS_COPY",         /* name */
 255          FALSE,                 /* partial_inplace */
 256          0,                     /* src_mask */
 257          0,                     /* dst_mask */
 258          FALSE),                /* pcrel_offset */
 259
 260   /* Like R_CRIS_32, but used when setting global offset table entries.  */
 261   HOWTO (R_CRIS_GLOB_DAT,       /* type */
 262          0,                     /* rightshift */
 263          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 264          32,                    /* bitsize */
 265          FALSE,                 /* pc_relative */
 266          0,                     /* bitpos */
 267          complain_overflow_bitfield, /* complain_on_overflow */
 268          bfd_elf_generic_reloc, /* special_function */
 269          "R_CRIS_GLOB_DAT",     /* name */
 270          FALSE,                 /* partial_inplace */
 271          0,                     /* src_mask */
 272          0xffffffff,            /* dst_mask */
 273          FALSE),                /* pcrel_offset */
 274
 275   /* Marks a procedure linkage table entry for a symbol.  */
 276   HOWTO (R_CRIS_JUMP_SLOT,      /* type */
 277          0,                     /* rightshift */
 278          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 279          32,                    /* bitsize */
 280          FALSE,                 /* pc_relative */
 281          0,                     /* bitpos */
 282          complain_overflow_bitfield, /* complain_on_overflow */
 283          bfd_elf_generic_reloc, /* special_function */
 284          "R_CRIS_JUMP_SLOT",    /* name */
 285          FALSE,                 /* partial_inplace */
 286          0,                     /* src_mask */
 287          0,                     /* dst_mask */
 288          FALSE),                /* pcrel_offset */
 289
 290   /* Used only by the dynamic linker.  When the object is run, this
 291      longword is set to the load address of the object, plus the
 292      addend.  */
 293   HOWTO (R_CRIS_RELATIVE,       /* type */
 294          0,                     /* rightshift */
 295          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 296          32,                    /* bitsize */
 297          FALSE,                 /* pc_relative */
 298          0,                     /* bitpos */
 299          complain_overflow_bitfield, /* complain_on_overflow */
 300          bfd_elf_generic_reloc, /* special_function */
 301          "R_CRIS_RELATIVE",     /* name */
 302          FALSE,                 /* partial_inplace */
 303          0,                     /* src_mask */
 304          0xffffffff,            /* dst_mask */
 305          FALSE),                /* pcrel_offset */
 306
 307   /* Like R_CRIS_32, but referring to the GOT table entry for the symbol.  */
 308   HOWTO (R_CRIS_16_GOT,         /* type */
 309          0,                     /* rightshift */
 310          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 311          16,                    /* bitsize */
 312          FALSE,                 /* pc_relative */
 313          0,                     /* bitpos */
 314          complain_overflow_bitfield, /* complain_on_overflow */
 315          bfd_elf_generic_reloc, /* special_function */
 316          "R_CRIS_16_GOT",       /* name */
 317          FALSE,                 /* partial_inplace */
 318          0,                     /* src_mask */
 319          0xffff,                /* dst_mask */
 320          FALSE),                /* pcrel_offset */
 321
 322   HOWTO (R_CRIS_32_GOT,         /* type */
 323          0,                     /* rightshift */
 324          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 325          32,                    /* bitsize */
 326          FALSE,                 /* pc_relative */
 327          0,                     /* bitpos */
 328          complain_overflow_bitfield, /* complain_on_overflow */
 329          bfd_elf_generic_reloc, /* special_function */
 330          "R_CRIS_32_GOT",       /* name */
 331          FALSE,                 /* partial_inplace */
 332          0,                     /* src_mask */
 333          0xffffffff,            /* dst_mask */
 334          FALSE),                /* pcrel_offset */
 335
 336   /* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
 337      the GOT table for the symbol.  */
 338   HOWTO (R_CRIS_16_GOTPLT,      /* type */
 339          0,                     /* rightshift */
 340          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 341          16,                    /* bitsize */
 342          FALSE,                 /* pc_relative */
 343          0,                     /* bitpos */
 344          complain_overflow_bitfield, /* complain_on_overflow */
 345          bfd_elf_generic_reloc, /* special_function */
 346          "R_CRIS_16_GOTPLT",    /* name */
 347          FALSE,                 /* partial_inplace */
 348          0,                     /* src_mask */
 349          0xffff,                /* dst_mask */
 350          FALSE),                /* pcrel_offset */
 351
 352   HOWTO (R_CRIS_32_GOTPLT,      /* type */
 353          0,                     /* rightshift */
 354          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 355          32,                    /* bitsize */
 356          FALSE,                 /* pc_relative */
 357          0,                     /* bitpos */
 358          complain_overflow_bitfield, /* complain_on_overflow */
 359          bfd_elf_generic_reloc, /* special_function */
 360          "R_CRIS_32_GOTPLT",    /* name */
 361          FALSE,                 /* partial_inplace */
 362          0,                     /* src_mask */
 363          0xffffffff,            /* dst_mask */
 364          FALSE),                /* pcrel_offset */
 365
 366   /* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
 367      be necessary.  */
 368   HOWTO (R_CRIS_32_GOTREL,      /* type */
 369          0,                     /* rightshift */
 370          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 371          32,                    /* bitsize */
 372          FALSE,                 /* pc_relative */
 373          0,                     /* bitpos */
 374          complain_overflow_bitfield, /* complain_on_overflow */
 375          bfd_elf_generic_reloc, /* special_function */
 376          "R_CRIS_32_GOTREL",    /* name */
 377          FALSE,                 /* partial_inplace */
 378          0,                     /* src_mask */
 379          0xffffffff,            /* dst_mask */
 380          FALSE),                /* pcrel_offset */
 381
 382   /* A 32-bit offset from GOT to entry for this symbol in PLT and request
 383      to create PLT entry for symbol.  */
 384   HOWTO (R_CRIS_32_PLT_GOTREL,  /* type */
 385          0,                     /* rightshift */
 386          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 387          32,                    /* bitsize */
 388          FALSE,                 /* pc_relative */
 389          0,                     /* bitpos */
 390          complain_overflow_bitfield, /* complain_on_overflow */
 391          bfd_elf_generic_reloc, /* special_function */
 392          "R_CRIS_32_PLT_GOTREL", /* name */
 393          FALSE,                 /* partial_inplace */
 394          0,                     /* src_mask */
 395          0xffffffff,            /* dst_mask */
 396          FALSE),                /* pcrel_offset */
 397
 398   /* A 32-bit offset from PC (location after the relocation) + addend to
 399      entry for this symbol in PLT and request to create PLT entry for
 400      symbol.  */
 401   HOWTO (R_CRIS_32_PLT_PCREL,   /* type */
 402          0,                     /* rightshift */
 403          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 404          32,                    /* bitsize */
 405          TRUE,                  /* pc_relative */
 406          0,                     /* bitpos */
 407          complain_overflow_bitfield, /* complain_on_overflow */
 408          cris_elf_pcrel_reloc,  /* special_function */
 409          "R_CRIS_32_PLT_PCREL", /* name */
 410          FALSE,                 /* partial_inplace */
 411          0,                     /* src_mask */
 412          0xffffffff,            /* dst_mask */
 413          TRUE),                 /* pcrel_offset */
 414
 415   /* We don't handle these in any special manner and cross-format
 416      linking is not supported; just recognize them enough to pass them
 417      around.  FIXME: do the same for most PIC relocs and add sanity
 418      tests to actually refuse gracefully to handle these and PIC
 419      relocs for cross-format linking.  */
 420 #define TLSHOWTO32(name) \
 421  HOWTO (name, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, \
 422         bfd_elf_generic_reloc, #name, FALSE, 0, 0xffffffff, FALSE)
 423 #define TLSHOWTO16X(name, X)         \
 424  HOWTO (name, 0, 1, 16, FALSE, 0, complain_overflow_ ## X, \
 425         bfd_elf_generic_reloc, #name, FALSE, 0, 0xffff, FALSE)
 426 #define TLSHOWTO16(name) TLSHOWTO16X(name, unsigned)
 427 #define TLSHOWTO16S(name) TLSHOWTO16X(name, signed)
 428
 429   TLSHOWTO32 (R_CRIS_32_GOT_GD),
 430   TLSHOWTO16 (R_CRIS_16_GOT_GD),
 431   TLSHOWTO32 (R_CRIS_32_GD),
 432   TLSHOWTO32 (R_CRIS_DTP),
 433   TLSHOWTO32 (R_CRIS_32_DTPREL),
 434   TLSHOWTO16S (R_CRIS_16_DTPREL),
 435   TLSHOWTO32 (R_CRIS_32_GOT_TPREL),
 436   TLSHOWTO16S (R_CRIS_16_GOT_TPREL),
 437   TLSHOWTO32 (R_CRIS_32_TPREL),
 438   TLSHOWTO16S (R_CRIS_16_TPREL),
 439   TLSHOWTO32 (R_CRIS_DTPMOD),
 440   TLSHOWTO32 (R_CRIS_32_IE)
 441 };
 442 \f
 443 /* Map BFD reloc types to CRIS ELF reloc types.  */
 444
 445 struct cris_reloc_map
 446 {
 447   bfd_reloc_code_real_type bfd_reloc_val;
 448   unsigned int cris_reloc_val;
 449 };
 450
 451 static const struct cris_reloc_map cris_reloc_map [] =
 452 {
 453   { BFD_RELOC_NONE,             R_CRIS_NONE },
 454   { BFD_RELOC_8,                R_CRIS_8 },
 455   { BFD_RELOC_16,               R_CRIS_16 },
 456   { BFD_RELOC_32,               R_CRIS_32 },
 457   { BFD_RELOC_8_PCREL,          R_CRIS_8_PCREL },
 458   { BFD_RELOC_16_PCREL,         R_CRIS_16_PCREL },
 459   { BFD_RELOC_32_PCREL,         R_CRIS_32_PCREL },
 460   { BFD_RELOC_VTABLE_INHERIT,   R_CRIS_GNU_VTINHERIT },
 461   { BFD_RELOC_VTABLE_ENTRY,     R_CRIS_GNU_VTENTRY },
 462   { BFD_RELOC_CRIS_COPY,        R_CRIS_COPY },
 463   { BFD_RELOC_CRIS_GLOB_DAT,    R_CRIS_GLOB_DAT },
 464   { BFD_RELOC_CRIS_JUMP_SLOT,   R_CRIS_JUMP_SLOT },
 465   { BFD_RELOC_CRIS_RELATIVE,    R_CRIS_RELATIVE },
 466   { BFD_RELOC_CRIS_16_GOT,      R_CRIS_16_GOT },
 467   { BFD_RELOC_CRIS_32_GOT,      R_CRIS_32_GOT },
 468   { BFD_RELOC_CRIS_16_GOTPLT,   R_CRIS_16_GOTPLT },
 469   { BFD_RELOC_CRIS_32_GOTPLT,   R_CRIS_32_GOTPLT },
 470   { BFD_RELOC_CRIS_32_GOTREL,   R_CRIS_32_GOTREL },
 471   { BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL },
 472   { BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL },
 473   { BFD_RELOC_CRIS_32_GOT_GD,   R_CRIS_32_GOT_GD },
 474   { BFD_RELOC_CRIS_16_GOT_GD,   R_CRIS_16_GOT_GD },
 475   { BFD_RELOC_CRIS_32_GD,       R_CRIS_32_GD },
 476   { BFD_RELOC_CRIS_DTP, R_CRIS_DTP },
 477   { BFD_RELOC_CRIS_32_DTPREL,   R_CRIS_32_DTPREL },
 478   { BFD_RELOC_CRIS_16_DTPREL,   R_CRIS_16_DTPREL },
 479   { BFD_RELOC_CRIS_32_GOT_TPREL, R_CRIS_32_GOT_TPREL },
 480   { BFD_RELOC_CRIS_16_GOT_TPREL, R_CRIS_16_GOT_TPREL },
 481   { BFD_RELOC_CRIS_32_TPREL,    R_CRIS_32_TPREL },
 482   { BFD_RELOC_CRIS_16_TPREL,    R_CRIS_16_TPREL },
 483   { BFD_RELOC_CRIS_DTPMOD,      R_CRIS_DTPMOD },
 484   { BFD_RELOC_CRIS_32_IE,       R_CRIS_32_IE }
 485 };
 486
 487 static reloc_howto_type *
 488 cris_reloc_type_lookup (abfd, code)
 489      bfd * abfd ATTRIBUTE_UNUSED;
 490      bfd_reloc_code_real_type code;
 491 {
 492   unsigned int i;
 493
 494   for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++)
 495     if (cris_reloc_map [i].bfd_reloc_val == code)
 496       return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
 497
 498   return NULL;
 499 }
 500
 501 static reloc_howto_type *
 502 cris_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
 503 {
 504   unsigned int i;
 505
 506   for (i = 0;
 507        i < sizeof (cris_elf_howto_table) / sizeof (cris_elf_howto_table[0]);
 508        i++)
 509     if (cris_elf_howto_table[i].name != NULL
 510         && strcasecmp (cris_elf_howto_table[i].name, r_name) == 0)
 511       return &cris_elf_howto_table[i];
 512
 513   return NULL;
 514 }
 515
 516 /* Set the howto pointer for an CRIS ELF reloc.  */
 517
 518 static void
 519 cris_info_to_howto_rela (abfd, cache_ptr, dst)
 520      bfd * abfd ATTRIBUTE_UNUSED;
 521      arelent * cache_ptr;
 522      Elf_Internal_Rela * dst;
 523 {
 524   enum elf_cris_reloc_type r_type;
 525
 526   r_type = ELF32_R_TYPE (dst->r_info);
 527   BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
 528   cache_ptr->howto = & cris_elf_howto_table [r_type];
 529 }
 530
 531 bfd_reloc_status_type
 532 cris_elf_pcrel_reloc (abfd, reloc_entry, symbol, data, input_section,
 533                       output_bfd, error_message)
 534      bfd *abfd ATTRIBUTE_UNUSED;
 535      arelent *reloc_entry;
 536      asymbol *symbol;
 537      PTR data ATTRIBUTE_UNUSED;
 538      asection *input_section;
 539      bfd *output_bfd;
 540      char **error_message ATTRIBUTE_UNUSED;
 541 {
 542   /* By default (using only bfd_elf_generic_reloc when linking to
 543      non-ELF formats) PC-relative relocs are relative to the beginning
 544      of the reloc.  CRIS PC-relative relocs are relative to the position
 545      *after* the reloc because that's what pre-CRISv32 PC points to
 546      after reading an insn field with that reloc.  (For CRISv32, PC is
 547      actually relative to the start of the insn, but we keep the old
 548      definition.)  Still, we use as much generic machinery as we can.
 549
 550      Only adjust when doing a final link.  */
 551   if (output_bfd == (bfd *) NULL)
 552     reloc_entry->addend -= 1 << reloc_entry->howto->size;
 553
 554   return
 555     bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
 556                            input_section, output_bfd, error_message);
 557 }
 558 \f
 559 /* Support for core dump NOTE sections.
 560    The slightly unintuitive code layout is an attempt to keep at least
 561    some similarities with other ports, hoping to simplify general
 562    changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart.  */
 563
 564 static bfd_boolean
 565 cris_elf_grok_prstatus (abfd, note)
 566      bfd *abfd;
 567      Elf_Internal_Note *note;
 568 {
 569   int offset;
 570   size_t size;
 571
 572   if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
 573     switch (note->descsz)
 574       {
 575       default:
 576         return FALSE;
 577
 578       case 202:         /* Linux/CRISv32 */
 579         /* pr_cursig */
 580         elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
 581
 582         /* pr_pid */
 583         elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
 584
 585         /* pr_reg */
 586         offset = 70;
 587         size = 128;
 588
 589         break;
 590       }
 591   else
 592     switch (note->descsz)
 593       {
 594       default:
 595         return FALSE;
 596
 597       case 214:         /* Linux/CRIS */
 598         /* pr_cursig */
 599         elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
 600
 601         /* pr_pid */
 602         elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
 603
 604         /* pr_reg */
 605         offset = 70;
 606         size = 140;
 607
 608         break;
 609       }
 610
 611   /* Make a ".reg/999" section.  */
 612   return _bfd_elfcore_make_pseudosection (abfd, ".reg",
 613                                           size, note->descpos + offset);
 614 }
 615
 616 static bfd_boolean
 617 cris_elf_grok_psinfo (abfd, note)
 618      bfd *abfd;
 619      Elf_Internal_Note *note;
 620 {
 621   if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
 622     switch (note->descsz)
 623       {
 624       default:
 625         return FALSE;
 626
 627       case 124:         /* Linux/CRISv32 elf_prpsinfo */
 628         elf_tdata (abfd)->core_program
 629           = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
 630         elf_tdata (abfd)->core_command
 631           = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
 632       }
 633   else
 634     switch (note->descsz)
 635       {
 636       default:
 637         return FALSE;
 638
 639       case 124:         /* Linux/CRIS elf_prpsinfo */
 640         elf_tdata (abfd)->core_program
 641           = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
 642         elf_tdata (abfd)->core_command
 643           = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
 644       }
 645
 646   /* Note that for some reason, a spurious space is tacked
 647      onto the end of the args in some (at least one anyway)
 648      implementations, so strip it off if it exists.  */
 649
 650   {
 651     char *command = elf_tdata (abfd)->core_command;
 652     int n = strlen (command);
 653
 654     if (0 < n && command[n - 1] == ' ')
 655       command[n - 1] = '\0';
 656   }
 657
 658   return TRUE;
 659 }
 660 \f
 661 /* The name of the dynamic interpreter.  This is put in the .interp
 662    section.  */
 663
 664 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
 665
 666 /* The size in bytes of an entry in the procedure linkage table.  */
 667
 668 #define PLT_ENTRY_SIZE 20
 669 #define PLT_ENTRY_SIZE_V32 26
 670
 671 /* The first entry in an absolute procedure linkage table looks like this.  */
 672
 673 static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] =
 674 {
 675   0xfc, 0xe1,
 676   0x7e, 0x7e,   /* push mof.  */
 677   0x7f, 0x0d,   /*  (dip [pc+]) */
 678   0, 0, 0, 0,   /*  Replaced with address of .got + 4.  */
 679   0x30, 0x7a,   /* move [...],mof */
 680   0x7f, 0x0d,   /*  (dip [pc+]) */
 681   0, 0, 0, 0,   /*  Replaced with address of .got + 8.  */
 682   0x30, 0x09    /* jump [...] */
 683 };
 684
 685 static const bfd_byte elf_cris_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
 686 {
 687   0x84, 0xe2,   /* subq 4,$sp */
 688   0x6f, 0xfe,   /* move.d 0,$acr */
 689   0, 0, 0, 0,   /*  Replaced by address of .got + 4.  */
 690   0x7e, 0x7a,   /* move $mof,[$sp] */
 691   0x3f, 0x7a,   /* move [$acr],$mof */
 692   0x04, 0xf2,   /* addq 4,acr */
 693   0x6f, 0xfa,   /* move.d [$acr],$acr */
 694   0xbf, 0x09,   /* jump $acr */
 695   0xb0, 0x05,   /* nop */
 696   0, 0          /*  Pad out to 26 bytes.  */
 697 };
 698
 699 /* Subsequent entries in an absolute procedure linkage table look like
 700    this.  */
 701
 702 static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] =
 703 {
 704   0x7f, 0x0d,   /*  (dip [pc+]) */
 705   0, 0, 0, 0,   /*  Replaced with address of this symbol in .got.  */
 706   0x30, 0x09,   /* jump [...] */
 707   0x3f,  0x7e,  /* move [pc+],mof */
 708   0, 0, 0, 0,   /*  Replaced with offset into relocation table.  */
 709   0x2f, 0xfe,   /* add.d [pc+],pc */
 710   0xec, 0xff,
 711   0xff, 0xff    /*  Replaced with offset to start of .plt.  */
 712 };
 713
 714 static const bfd_byte elf_cris_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
 715 {
 716   0x6f, 0xfe,   /* move.d 0,$acr */
 717   0, 0, 0, 0,   /*  Replaced with address of this symbol in .got.  */
 718   0x6f, 0xfa,   /* move.d [$acr],$acr */
 719   0xbf, 0x09,   /* jump $acr */
 720   0xb0, 0x05,   /* nop */
 721   0x3f, 0x7e,   /* move 0,mof */
 722   0, 0, 0, 0,   /*  Replaced with offset into relocation table. */
 723   0xbf, 0x0e,   /* ba start_of_plt0_entry */
 724   0, 0, 0, 0,   /*  Replaced with offset to plt0 entry.  */
 725   0xb0, 0x05    /* nop */
 726 };
 727
 728 /* The first entry in a PIC procedure linkage table looks like this.  */
 729
 730 static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
 731 {
 732   0xfc, 0xe1, 0x7e, 0x7e,       /* push mof */
 733   0x04, 0x01, 0x30, 0x7a,       /* move [r0+4],mof */
 734   0x08, 0x01, 0x30, 0x09,       /* jump [r0+8] */
 735   0, 0, 0, 0, 0, 0, 0, 0,       /*  Pad out to 20 bytes.  */
 736 };
 737
 738 static const bfd_byte elf_cris_pic_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
 739 {
 740   0x84, 0xe2,   /* subq 4,$sp */
 741   0x04, 0x01,   /* addoq 4,$r0,$acr */
 742   0x7e, 0x7a,   /* move $mof,[$sp] */
 743   0x3f, 0x7a,   /* move [$acr],$mof */
 744   0x04, 0xf2,   /* addq 4,$acr */
 745   0x6f, 0xfa,   /* move.d [$acr],$acr */
 746   0xbf, 0x09,   /* jump $acr */
 747   0xb0, 0x05,   /* nop */
 748   0, 0,         /*  Pad out to 26 bytes.  */
 749   0, 0, 0, 0,
 750   0, 0, 0, 0
 751 };
 752
 753 /* Subsequent entries in a PIC procedure linkage table look like this.  */
 754
 755 static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
 756 {
 757   0x6f, 0x0d,   /*  (bdap [pc+].d,r0) */
 758   0, 0, 0, 0,   /*  Replaced with offset of this symbol in .got.  */
 759   0x30, 0x09,   /* jump [...] */
 760   0x3f, 0x7e,   /* move [pc+],mof */
 761   0, 0, 0, 0,   /*  Replaced with offset into relocation table.  */
 762   0x2f, 0xfe,   /* add.d [pc+],pc */
 763   0xec, 0xff,   /*  Replaced with offset to start of .plt.  */
 764   0xff, 0xff
 765 };
 766
 767 static const bfd_byte elf_cris_pic_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
 768 {
 769   0x6f, 0x0d,   /* addo.d 0,$r0,$acr */
 770   0, 0, 0, 0,   /*  Replaced with offset of this symbol in .got.  */
 771   0x6f, 0xfa,   /* move.d [$acr],$acr */
 772   0xbf, 0x09,   /* jump $acr */
 773   0xb0, 0x05,   /* nop */
 774   0x3f, 0x7e,   /* move relocoffs,$mof */
 775   0, 0, 0, 0,   /*  Replaced with offset into relocation table.  */
 776   0xbf, 0x0e,   /* ba start_of_plt */
 777   0, 0, 0, 0,   /*  Replaced with offset to start of .plt.  */
 778   0xb0, 0x05    /* nop */
 779 };
 780 \f
 781 /* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
 782    (and most other PIC/shlib stuff).  Check that we don't drift away
 783    without reason.
 784
 785    The CRIS linker, like the m68k and i386 linkers (and probably the rest
 786    too) needs to keep track of the number of relocs that it decides to
 787    copy in check_relocs for each symbol.  This is so that it can discard
 788    PC relative relocs if it doesn't need them when linking with
 789    -Bsymbolic.  We store the information in a field extending the regular
 790    ELF linker hash table.  */
 791
 792 /* This structure keeps track of the number of PC relative relocs we have
 793    copied for a given symbol.  */
 794
 795 struct elf_cris_pcrel_relocs_copied
 796 {
 797   /* Next section.  */
 798   struct elf_cris_pcrel_relocs_copied *next;
 799
 800   /* A section in dynobj.  */
 801   asection *section;
 802
 803   /* Number of relocs copied in this section.  */
 804   bfd_size_type count;
 805
 806   /* Example of reloc being copied, for message.  */
 807   enum elf_cris_reloc_type r_type;
 808 };
 809
 810 /* CRIS ELF linker hash entry.  */
 811
 812 struct elf_cris_link_hash_entry
 813 {
 814   struct elf_link_hash_entry root;
 815
 816   /* Number of PC relative relocs copied for this symbol.  */
 817   struct elf_cris_pcrel_relocs_copied *pcrel_relocs_copied;
 818
 819   /* The GOTPLT references are CRIS-specific; the goal is to avoid having
 820      both a general GOT and a PLT-specific GOT entry for the same symbol,
 821      when it is referenced both as a function and as a function pointer.
 822
 823      Number of GOTPLT references for a function.  */
 824   bfd_signed_vma gotplt_refcount;
 825
 826   /* Actual GOTPLT index for this symbol, if applicable, or zero if not
 827      (zero is never used as an index).  FIXME: We should be able to fold
 828      this with gotplt_refcount in a union, like the got and plt unions in
 829      elf_link_hash_entry.  */
 830   bfd_size_type gotplt_offset;
 831
 832   /* The root.got.refcount is the sum of the regular reference counts
 833      (this) and those members below.  We have to keep a separate count
 834      to track when we've found the first (or last) reference to a
 835      regular got entry.  The offset is in root.got.offset.  */
 836   bfd_signed_vma reg_got_refcount;
 837
 838   /* Similar to the above, the number of reloc references to this
 839      symbols that need a R_CRIS_32_TPREL slot.  The offset is in
 840      root.got.offset, because this and .dtp_refcount can't validly
 841      happen when there's also a regular GOT entry; that's invalid
 842      input for which an error is emitted.  */
 843   bfd_signed_vma tprel_refcount;
 844
 845   /* Similar to the above, the number of reloc references to this
 846      symbols that need a R_CRIS_DTP slot.  The offset is in
 847      root.got.offset; plus 4 if .tprel_refcount > 0.  */
 848   bfd_signed_vma dtp_refcount;
 849 };
 850
 851 /* The local_got_refcounts and local_got_offsets are a multiple of
 852    LSNUM in size, namely LGOT_ALLOC_NELTS_FOR(LSNUM) (plus one for the
 853    refcount for GOT itself, see code), with the summary / group offset
 854    for local symbols located at offset N, reference counts for
 855    ordinary (address) relocs at offset N + LSNUM, for R_CRIS_DTP
 856    relocs at offset N + 2*LSNUM, and for R_CRIS_32_TPREL relocs at N +
 857    3*LSNUM.  */
 858
 859 #define LGOT_REG_NDX(x) ((x) + symtab_hdr->sh_info)
 860 #define LGOT_DTP_NDX(x) ((x) + 2 * symtab_hdr->sh_info)
 861 #define LGOT_TPREL_NDX(x) ((x) + 3 * symtab_hdr->sh_info)
 862 #define LGOT_ALLOC_NELTS_FOR(x) ((x) * 4)
 863
 864 /* CRIS ELF linker hash table.  */
 865
 866 struct elf_cris_link_hash_table
 867 {
 868   struct elf_link_hash_table root;
 869
 870   /* We can't use the PLT offset and calculate to get the GOTPLT offset,
 871      since we try and avoid creating GOTPLT:s when there's already a GOT.
 872      Instead, we keep and update the next available index here.  */
 873   bfd_size_type next_gotplt_entry;
 874
 875   /* The number of R_CRIS_32_DTPREL and R_CRIS_16_DTPREL that have
 876      been seen for any input; if != 0, then the constant-offset
 877      R_CRIS_DTPMOD is needed for this DSO/executable.  This turns
 878      negative at relocation, so that we don't need an extra flag for
 879      when the reloc is output.  */
 880   bfd_signed_vma dtpmod_refcount;
 881 };
 882
 883 /* Traverse a CRIS ELF linker hash table.  */
 884
 885 #define elf_cris_link_hash_traverse(table, func, info)                  \
 886   (elf_link_hash_traverse                                               \
 887    (&(table)->root,                                                     \
 888     (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
 889     (info)))
 890
 891 /* Get the CRIS ELF linker hash table from a link_info structure.  */
 892
 893 #define elf_cris_hash_table(p) \
 894   ((struct elf_cris_link_hash_table *) (p)->hash)
 895
 896 /* Get the CRIS ELF linker hash entry from a regular hash entry (the
 897    "parent class").  The .root reference is just a simple type
 898    check on the argument.  */
 899
 900 #define elf_cris_hash_entry(p) \
 901  ((struct elf_cris_link_hash_entry *) (&(p)->root))
 902
 903 /* Create an entry in a CRIS ELF linker hash table.  */
 904
 905 static struct bfd_hash_entry *
 906 elf_cris_link_hash_newfunc (entry, table, string)
 907      struct bfd_hash_entry *entry;
 908      struct bfd_hash_table *table;
 909      const char *string;
 910 {
 911   struct elf_cris_link_hash_entry *ret =
 912     (struct elf_cris_link_hash_entry *) entry;
 913
 914   /* Allocate the structure if it has not already been allocated by a
 915      subclass.  */
 916   if (ret == (struct elf_cris_link_hash_entry *) NULL)
 917     ret = ((struct elf_cris_link_hash_entry *)
 918            bfd_hash_allocate (table,
 919                               sizeof (struct elf_cris_link_hash_entry)));
 920   if (ret == (struct elf_cris_link_hash_entry *) NULL)
 921     return (struct bfd_hash_entry *) ret;
 922
 923   /* Call the allocation method of the superclass.  */
 924   ret = ((struct elf_cris_link_hash_entry *)
 925          _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
 926                                      table, string));
 927   if (ret != (struct elf_cris_link_hash_entry *) NULL)
 928     {
 929       ret->pcrel_relocs_copied = NULL;
 930       ret->gotplt_refcount = 0;
 931       ret->gotplt_offset = 0;
 932       ret->dtp_refcount = 0;
 933       ret->tprel_refcount = 0;
 934       ret->reg_got_refcount = 0;
 935     }
 936
 937   return (struct bfd_hash_entry *) ret;
 938 }
 939
 940 /* Create a CRIS ELF linker hash table.  */
 941
 942 static struct bfd_link_hash_table *
 943 elf_cris_link_hash_table_create (abfd)
 944      bfd *abfd;
 945 {
 946   struct elf_cris_link_hash_table *ret;
 947   bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);
 948
 949   ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
 950   if (ret == (struct elf_cris_link_hash_table *) NULL)
 951     return NULL;
 952
 953   if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
 954                                       elf_cris_link_hash_newfunc,
 955                                       sizeof (struct elf_cris_link_hash_entry)))
 956     {
 957       free (ret);
 958       return NULL;
 959     }
 960
 961   /* Initialize to skip over the first three entries in the gotplt; they
 962      are used for run-time symbol evaluation.  */
 963   ret->next_gotplt_entry = 12;
 964
 965   /* We haven't seen any R_CRIS_nn_GOT_TPREL initially.  */
 966   ret->dtpmod_refcount = 0;
 967
 968   return &ret->root.root;
 969 }
 970 \f
 971 /* Perform a single relocation.  By default we use the standard BFD
 972    routines, with a few tweaks.  */
 973
 974 static bfd_reloc_status_type
 975 cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
 976                           relocation)
 977      reloc_howto_type *  howto;
 978      bfd *               input_bfd;
 979      asection *          input_section;
 980      bfd_byte *          contents;
 981      Elf_Internal_Rela * rel;
 982      bfd_vma             relocation;
 983 {
 984   bfd_reloc_status_type r;
 985   enum elf_cris_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
 986
 987   /* PC-relative relocations are relative to the position *after*
 988      the reloc.  Note that for R_CRIS_8_PCREL the adjustment is
 989      not a single byte, since PC must be 16-bit-aligned.  */
 990   switch (r_type)
 991     {
 992       /* Check that the 16-bit GOT relocs are positive.  */
 993     case R_CRIS_16_GOTPLT:
 994     case R_CRIS_16_GOT:
 995       if ((bfd_signed_vma) relocation < 0)
 996         return bfd_reloc_overflow;
 997       break;
 998
 999     case R_CRIS_32_PLT_PCREL:
1000     case R_CRIS_32_PCREL:
1001       relocation -= 2;
1002       /* Fall through.  */
1003     case R_CRIS_8_PCREL:
1004     case R_CRIS_16_PCREL:
1005       relocation -= 2;
1006       break;
1007
1008     default:
1009       break;
1010     }
1011
1012   r = _bfd_final_link_relocate (howto, input_bfd, input_section,
1013                                 contents, rel->r_offset,
1014                                 relocation, rel->r_addend);
1015   return r;
1016 }
1017 \f
1018
1019 /* The number of errors left before we stop outputting reloc-specific
1020    explanatory messages.  By coincidence, this works nicely together
1021    with the default number of messages you'll get from LD about
1022    "relocation truncated to fit" messages before you get an
1023    "additional relocation overflows omitted from the output".  */
1024 static int additional_relocation_error_msg_count = 10;
1025
1026 /* Relocate an CRIS ELF section.  See elf32-fr30.c, from where this was
1027    copied, for further comments.  */
1028
1029 static bfd_boolean
1030 cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
1031                            contents, relocs, local_syms, local_sections)
1032      bfd *output_bfd ATTRIBUTE_UNUSED;
1033      struct bfd_link_info *info;
1034      bfd *input_bfd;
1035      asection *input_section;
1036      bfd_byte *contents;
1037      Elf_Internal_Rela *relocs;
1038      Elf_Internal_Sym *local_syms;
1039      asection **local_sections;
1040 {
1041   bfd *dynobj;
1042   Elf_Internal_Shdr *symtab_hdr;
1043   struct elf_link_hash_entry **sym_hashes;
1044   bfd_vma *local_got_offsets;
1045   asection *sgot;
1046   asection *splt;
1047   asection *sreloc;
1048   Elf_Internal_Rela *rel;
1049   Elf_Internal_Rela *relend;
1050   asection *srelgot;
1051
1052   dynobj = elf_hash_table (info)->dynobj;
1053   local_got_offsets = elf_local_got_offsets (input_bfd);
1054   symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
1055   sym_hashes = elf_sym_hashes (input_bfd);
1056   relend     = relocs + input_section->reloc_count;
1057
1058   sgot = NULL;
1059   splt = NULL;
1060   sreloc = NULL;
1061   srelgot = NULL;
1062
1063   if (dynobj != NULL)
1064     {
1065       splt = bfd_get_section_by_name (dynobj, ".plt");
1066       sgot = bfd_get_section_by_name (dynobj, ".got");
1067     }
1068
1069   for (rel = relocs; rel < relend; rel ++)
1070     {
1071       reloc_howto_type *howto;
1072       unsigned long r_symndx;
1073       Elf_Internal_Sym *sym;
1074       asection *sec;
1075       struct elf_link_hash_entry *h;
1076       bfd_vma relocation;
1077       bfd_reloc_status_type r;
1078       const char *symname = NULL;
1079       enum elf_cris_reloc_type r_type;
1080
1081       r_type = ELF32_R_TYPE (rel->r_info);
1082
1083       if (   r_type == R_CRIS_GNU_VTINHERIT
1084           || r_type == R_CRIS_GNU_VTENTRY)
1085         continue;
1086
1087       r_symndx = ELF32_R_SYM (rel->r_info);
1088       howto  = cris_elf_howto_table + r_type;
1089       h      = NULL;
1090       sym    = NULL;
1091       sec    = NULL;
1092
1093       if (r_symndx < symtab_hdr->sh_info)
1094         {
1095           sym = local_syms + r_symndx;
1096           sec = local_sections [r_symndx];
1097           relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1098
1099           symname = (bfd_elf_string_from_elf_section
1100                      (input_bfd, symtab_hdr->sh_link, sym->st_name));
1101           if (symname == NULL)
1102             symname = bfd_section_name (input_bfd, sec);
1103         }
1104       else
1105         {
1106           bfd_boolean warned;
1107           bfd_boolean unresolved_reloc;
1108
1109           RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1110                                    r_symndx, symtab_hdr, sym_hashes,
1111                                    h, sec, relocation,
1112                                    unresolved_reloc, warned);
1113
1114           symname = h->root.root.string;
1115
1116           if (unresolved_reloc
1117               /* Perhaps we should detect the cases that
1118                  sec->output_section is expected to be NULL like i386 and
1119                  m68k, but apparently (and according to elfxx-ia64.c) all
1120                  valid cases are where the symbol is defined in a shared
1121                  object which we link dynamically against.  This includes
1122                  PLT relocs for which we've created a PLT entry and other
1123                  relocs for which we're prepared to create dynamic
1124                  relocations.
1125
1126                  For now, new situations cause us to just err when
1127                  sec->output_offset is NULL but the object with the symbol
1128                  is *not* dynamically linked against.  Thus this will
1129                  automatically remind us so we can see if there are other
1130                  valid cases we need to revisit.  */
1131               && (sec->owner->flags & DYNAMIC) != 0)
1132             relocation = 0;
1133
1134           else if (h->root.type == bfd_link_hash_defined
1135                    || h->root.type == bfd_link_hash_defweak)
1136             {
1137               /* Here follow the cases where the relocation value must
1138                  be zero (or when further handling is simplified when
1139                  zero).  I can't claim to understand the various
1140                  conditions and they weren't described in the files
1141                  where I copied them from (elf32-m68k.c and
1142                  elf32-i386.c), but let's mention examples of where
1143                  they happen.  FIXME: Perhaps define and use a
1144                  dynamic_symbol_p function like ia64.
1145
1146                  - When creating a shared library, we can have an
1147                  ordinary relocation for a symbol defined in a shared
1148                  library (perhaps the one we create).  We then make
1149                  the relocation value zero, as the value seen now will
1150                  be added into the relocation addend in this shared
1151                  library, but must be handled only at dynamic-link
1152                  time.  FIXME: Not sure this example covers the
1153                  h->elf_link_hash_flags test, though it's there in
1154                  other targets.  */
1155               if (info->shared
1156                   && ((! info->symbolic && h->dynindx != -1)
1157                       || !h->def_regular)
1158                   && (input_section->flags & SEC_ALLOC) != 0
1159                   && (r_type == R_CRIS_8
1160                       || r_type == R_CRIS_16
1161                       || r_type == R_CRIS_32
1162                       || r_type == R_CRIS_8_PCREL
1163                       || r_type == R_CRIS_16_PCREL
1164                       || r_type == R_CRIS_32_PCREL))
1165                 relocation = 0;
1166               else if (!info->relocatable && unresolved_reloc)
1167                 {
1168                   _bfd_error_handler
1169                     (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
1170                      input_bfd,
1171                      input_section,
1172                      cris_elf_howto_table[r_type].name,
1173                      symname);
1174                   bfd_set_error (bfd_error_bad_value);
1175                   return FALSE;
1176                 }
1177             }
1178         }
1179
1180       if (sec != NULL && elf_discarded_section (sec))
1181         {
1182           /* For relocs against symbols from removed linkonce sections,
1183              or sections discarded by a linker script, we just want the
1184              section contents zeroed.  Avoid any special processing.  */
1185           _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
1186           rel->r_info = 0;
1187           rel->r_addend = 0;
1188           continue;
1189         }
1190
1191       if (info->relocatable)
1192         continue;
1193
1194       switch (r_type)
1195         {
1196         case R_CRIS_16_GOTPLT:
1197         case R_CRIS_32_GOTPLT:
1198           /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
1199              but we require a PLT, and the PLT handling will take care of
1200              filling in the PLT-specific GOT entry.  For the GOT offset,
1201              calculate it as we do when filling it in for the .got.plt
1202              section.  If we don't have a PLT, punt to GOT handling.  */
1203           if (h != NULL
1204               && ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0)
1205             {
1206               asection *sgotplt
1207                 = bfd_get_section_by_name (dynobj, ".got.plt");
1208               bfd_vma got_offset;
1209
1210               BFD_ASSERT (h->dynindx != -1);
1211               BFD_ASSERT (sgotplt != NULL);
1212
1213               got_offset
1214                 = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
1215
1216               relocation = got_offset;
1217               break;
1218             }
1219
1220           /* We didn't make a PLT entry for this symbol.  Maybe everything is
1221              folded into the GOT.  Other than folding, this happens when
1222              statically linking PIC code, or when using -Bsymbolic.  Check
1223              that we instead have a GOT entry as done for us by
1224              elf_cris_adjust_dynamic_symbol, and drop through into the
1225              ordinary GOT cases.  This must not happen for the
1226              executable, because any reference it does to a function
1227              that is satisfied by a DSO must generate a PLT.  We assume
1228              these call-specific relocs don't address non-functions.  */
1229           if (h != NULL
1230               && (h->got.offset == (bfd_vma) -1
1231                   || (!info->shared
1232                       && !(h->def_regular
1233                            || (!h->def_dynamic
1234                                && h->root.type == bfd_link_hash_undefweak)))))
1235             {
1236               (*_bfd_error_handler)
1237                 ((h->got.offset == (bfd_vma) -1)
1238                  ? _("%B, section %A: No PLT nor GOT for relocation %s"
1239                      " against symbol `%s'")
1240                  : _("%B, section %A: No PLT for relocation %s"
1241                      " against symbol `%s'"),
1242                  input_bfd,
1243                  input_section,
1244                  cris_elf_howto_table[r_type].name,
1245                  (symname != NULL && symname[0] != '\0'
1246                   ? symname : _("[whose name is lost]")));
1247
1248               /* FIXME: Perhaps blaming input is not the right thing to
1249                  do; this is probably an internal error.  But it is true
1250                  that we didn't like that particular input.  */
1251               bfd_set_error (bfd_error_bad_value);
1252               return FALSE;
1253             }
1254           /* Fall through.  */
1255
1256           /* The size of the actual relocation is not used here; we only
1257              fill in the GOT table here.  */
1258         case R_CRIS_16_GOT:
1259         case R_CRIS_32_GOT:
1260           {
1261             bfd_vma off;
1262
1263             /* Note that despite using RELA relocations, the .got contents
1264                is always filled in with the link-relative relocation
1265                value; the addend.  */
1266
1267             if (h != NULL)
1268               {
1269                 off = h->got.offset;
1270                 BFD_ASSERT (off != (bfd_vma) -1);
1271
1272                 if (!elf_hash_table (info)->dynamic_sections_created
1273                     || (! info->shared
1274                         && (h->def_regular
1275                             || h->type == STT_FUNC
1276                             || h->needs_plt))
1277                     || (info->shared
1278                         && (info->symbolic || h->dynindx == -1)
1279                         && h->def_regular))
1280                   {
1281                     /* This wasn't checked above for ! info->shared, but
1282                        must hold there if we get here; the symbol must
1283                        be defined in the regular program or be undefweak
1284                        or be a function or otherwise need a PLT.  */
1285                     BFD_ASSERT (!elf_hash_table (info)->dynamic_sections_created
1286                                 || info->shared
1287                                 || h->def_regular
1288                                 || h->type == STT_FUNC
1289                                 || h->needs_plt
1290                                 || h->root.type == bfd_link_hash_undefweak);
1291
1292                     /* This is actually a static link, or it is a
1293                        -Bsymbolic link and the symbol is defined locally,
1294                        or is undefweak, or the symbol was forced to be
1295                        local because of a version file, or we're not
1296                        creating a dynamic object.  We must initialize this
1297                        entry in the global offset table.  Since the offset
1298                        must always be a multiple of 4, we use the least
1299                        significant bit to record whether we have
1300                        initialized it already.
1301
1302                        If this GOT entry should be runtime-initialized, we
1303                        will create a .rela.got relocation entry to
1304                        initialize the value.  This is done in the
1305                        finish_dynamic_symbol routine.  */
1306                     if ((off & 1) != 0)
1307                       off &= ~1;
1308                     else
1309                       {
1310                         bfd_put_32 (output_bfd, relocation,
1311                                     sgot->contents + off);
1312                         h->got.offset |= 1;
1313                       }
1314                   }
1315               }
1316             else
1317               {
1318                 BFD_ASSERT (local_got_offsets != NULL
1319                             && local_got_offsets[r_symndx] != (bfd_vma) -1);
1320
1321                 off = local_got_offsets[r_symndx];
1322
1323                 /* The offset must always be a multiple of 4.  We use
1324                    the least significant bit to record whether we have
1325                    already generated the necessary reloc.  */
1326                 if ((off & 1) != 0)
1327                   off &= ~1;
1328                 else
1329                   {
1330                     bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1331
1332                     if (info->shared)
1333                       {
1334                         Elf_Internal_Rela outrel;
1335                         bfd_byte *loc;
1336
1337                         if (srelgot == NULL)
1338                           srelgot
1339                             = bfd_get_section_by_name (dynobj, ".rela.got");
1340                         BFD_ASSERT (srelgot != NULL);
1341
1342                         outrel.r_offset = (sgot->output_section->vma
1343                                            + sgot->output_offset
1344                                            + off);
1345                         outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1346                         outrel.r_addend = relocation;
1347                         loc = srelgot->contents;
1348                         loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1349                         bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1350                       }
1351
1352                     local_got_offsets[r_symndx] |= 1;
1353                   }
1354               }
1355
1356             relocation = sgot->output_offset + off;
1357             if (rel->r_addend != 0)
1358               {
1359                 /* We can't do anything for a relocation which is against
1360                    a symbol *plus offset*.  GOT holds relocations for
1361                    symbols.  Make this an error; the compiler isn't
1362                    allowed to pass us these kinds of things.  */
1363                 if (h == NULL)
1364                   (*_bfd_error_handler)
1365                     (_("%B, section %A: relocation %s with non-zero addend %d"
1366                        " against local symbol"),
1367                      input_bfd,
1368                      input_section,
1369                      cris_elf_howto_table[r_type].name,
1370                      rel->r_addend);
1371                 else
1372                   (*_bfd_error_handler)
1373                     (_("%B, section %A: relocation %s with non-zero addend %d"
1374                        " against symbol `%s'"),
1375                      input_bfd,
1376                      input_section,
1377                      cris_elf_howto_table[r_type].name,
1378                      rel->r_addend,
1379                      symname[0] != '\0' ? symname : _("[whose name is lost]"));
1380
1381                 bfd_set_error (bfd_error_bad_value);
1382                 return FALSE;
1383               }
1384           }
1385           break;
1386
1387         case R_CRIS_32_GOTREL:
1388           /* This relocation must only be performed against local symbols.
1389              It's also ok when we link a program and the symbol is either
1390              defined in an ordinary (non-DSO) object or is undefined weak.  */
1391           if (h != NULL
1392               && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1393               && !(!info->shared
1394                    && (h->def_regular
1395                        || (!h->def_dynamic
1396                            && h->root.type == bfd_link_hash_undefweak))))
1397             {
1398               (*_bfd_error_handler)
1399                 (_("%B, section %A: relocation %s is"
1400                    " not allowed for global symbol: `%s'"),
1401                  input_bfd,
1402                  input_section,
1403                  cris_elf_howto_table[r_type].name,
1404                  symname);
1405               bfd_set_error (bfd_error_bad_value);
1406               return FALSE;
1407             }
1408
1409           /* This can happen if we get a link error with the input ELF
1410              variant mismatching the output variant.  Emit an error so
1411              it's noticed if it happens elsewhere.  */
1412           if (sgot == NULL)
1413             {
1414               (*_bfd_error_handler)
1415                 (_("%B, section %A: relocation %s with no GOT created"),
1416                  input_bfd,
1417                  input_section,
1418                  cris_elf_howto_table[r_type].name);
1419               bfd_set_error (bfd_error_bad_value);
1420               return FALSE;
1421             }
1422
1423           /* This relocation is like a PC-relative one, except the
1424              reference point is the location of GOT.  Note that
1425              sgot->output_offset is not involved in this calculation.  We
1426              always want the start of entire .got section, not the
1427              position after the reserved header.  */
1428           relocation -= sgot->output_section->vma;
1429           break;
1430
1431         case R_CRIS_32_PLT_PCREL:
1432           /* Relocation is to the entry for this symbol in the
1433              procedure linkage table.  */
1434
1435           /* Resolve a PLT_PCREL reloc against a local symbol directly,
1436              without using the procedure linkage table.  */
1437           if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1438             break;
1439
1440           if (h->plt.offset == (bfd_vma) -1
1441               || splt == NULL)
1442             {
1443               /* We didn't make a PLT entry for this symbol.  This
1444                  happens when statically linking PIC code, or when
1445                  using -Bsymbolic.  */
1446               break;
1447             }
1448
1449           relocation = (splt->output_section->vma
1450                         + splt->output_offset
1451                         + h->plt.offset);
1452           break;
1453
1454         case R_CRIS_32_PLT_GOTREL:
1455           /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
1456              start of the .got section.  See also comment at
1457              R_CRIS_32_GOT.  */
1458           relocation -= sgot->output_section->vma;
1459
1460           /* Resolve a PLT_GOTREL reloc against a local symbol directly,
1461              without using the procedure linkage table.  */
1462           if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1463             break;
1464
1465           if (h->plt.offset == (bfd_vma) -1
1466               || splt == NULL)
1467             {
1468               /* We didn't make a PLT entry for this symbol.  This
1469                  happens when statically linking PIC code, or when
1470                  using -Bsymbolic.  */
1471               break;
1472             }
1473
1474           relocation = (splt->output_section->vma
1475                         + splt->output_offset
1476                         + h->plt.offset
1477                         - sgot->output_section->vma);
1478           break;
1479
1480         case R_CRIS_8_PCREL:
1481         case R_CRIS_16_PCREL:
1482         case R_CRIS_32_PCREL:
1483           /* If the symbol was local, we need no shlib-specific handling.  */
1484           if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1485               || h->dynindx == -1)
1486             break;
1487
1488           /* Fall through.  */
1489         case R_CRIS_8:
1490         case R_CRIS_16:
1491         case R_CRIS_32:
1492           if (info->shared
1493               && r_symndx != 0
1494               && (input_section->flags & SEC_ALLOC) != 0
1495               && ((r_type != R_CRIS_8_PCREL
1496                    && r_type != R_CRIS_16_PCREL
1497                    && r_type != R_CRIS_32_PCREL)
1498                   || (!info->symbolic
1499                       || (h != NULL && !h->def_regular))))
1500             {
1501               Elf_Internal_Rela outrel;
1502               bfd_byte *loc;
1503               bfd_boolean skip, relocate;
1504
1505               /* When generating a shared object, these relocations
1506                  are copied into the output file to be resolved at run
1507                  time.  */
1508
1509               if (sreloc == NULL)
1510                 {
1511                   sreloc = _bfd_elf_get_dynamic_reloc_section
1512                     (input_bfd, input_section, /*rela?*/ TRUE);
1513                   /* The section should have been created in cris_elf_check_relocs,
1514                      but that function will not be called for objects which fail in
1515                      cris_elf_merge_private_bfd_data.  */
1516                   if (sreloc == NULL)
1517                     {
1518                       bfd_set_error (bfd_error_bad_value);
1519                       return FALSE;
1520                     }
1521                 }
1522
1523               skip = FALSE;
1524               relocate = FALSE;
1525
1526               outrel.r_offset =
1527                 _bfd_elf_section_offset (output_bfd, info, input_section,
1528                                          rel->r_offset);
1529               if (outrel.r_offset == (bfd_vma) -1)
1530                 skip = TRUE;
1531               else if (outrel.r_offset == (bfd_vma) -2
1532                        /* For now, undefined weak symbols with non-default
1533                           visibility (yielding 0), like exception info for
1534                           discarded sections, will get a R_CRIS_NONE
1535                           relocation rather than no relocation, because we
1536                           notice too late that the symbol doesn't need a
1537                           relocation.  */
1538                        || (h != NULL
1539                            && h->root.type == bfd_link_hash_undefweak
1540                            && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))
1541                 skip = TRUE, relocate = TRUE;
1542               outrel.r_offset += (input_section->output_section->vma
1543                                   + input_section->output_offset);
1544
1545               if (skip)
1546                 memset (&outrel, 0, sizeof outrel);
1547               /* h->dynindx may be -1 if the symbol was marked to
1548                  become local.  */
1549               else if (h != NULL
1550                        && ((! info->symbolic && h->dynindx != -1)
1551                            || !h->def_regular))
1552                 {
1553                   BFD_ASSERT (h->dynindx != -1);
1554                   outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1555                   outrel.r_addend = relocation + rel->r_addend;
1556                 }
1557               else
1558                 {
1559                   outrel.r_addend = relocation + rel->r_addend;
1560
1561                   if (r_type == R_CRIS_32)
1562                     {
1563                       relocate = TRUE;
1564                       outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1565                     }
1566                   else
1567                     {
1568                       long indx;
1569
1570                       if (bfd_is_abs_section (sec))
1571                         indx = 0;
1572                       else if (sec == NULL || sec->owner == NULL)
1573                         {
1574                           bfd_set_error (bfd_error_bad_value);
1575                           return FALSE;
1576                         }
1577                       else
1578                         {
1579                           asection *osec;
1580
1581                           /* We are turning this relocation into one
1582                              against a section symbol.  It would be
1583                              proper to subtract the symbol's value,
1584                              osec->vma, from the emitted reloc addend,
1585                              but ld.so expects buggy relocs.  */
1586                           osec = sec->output_section;
1587                           indx = elf_section_data (osec)->dynindx;
1588                           if (indx == 0)
1589                             {
1590                               struct elf_cris_link_hash_table *htab;
1591                               htab = elf_cris_hash_table (info);
1592                               osec = htab->root.text_index_section;
1593                               indx = elf_section_data (osec)->dynindx;
1594                             }
1595                           BFD_ASSERT (indx != 0);
1596                         }
1597
1598                       outrel.r_info = ELF32_R_INFO (indx, r_type);
1599                     }
1600                 }
1601
1602               loc = sreloc->contents;
1603               loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1604               bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1605
1606               /* This reloc will be computed at runtime, so there's no
1607                  need to do anything now, except for R_CRIS_32 relocations
1608                  that have been turned into R_CRIS_RELATIVE.  */
1609               if (!relocate)
1610                 continue;
1611             }
1612
1613           break;
1614
1615         case R_CRIS_16_DTPREL:
1616         case R_CRIS_32_DTPREL:
1617           /* This relocation must only be performed against local
1618              symbols, or to sections that are not loadable.  It's also
1619              ok when we link a program and the symbol is defined in an
1620              ordinary (non-DSO) object (if it's undefined there, we've
1621              already seen an error).  */
1622           if (h != NULL
1623               && (input_section->flags & SEC_ALLOC) != 0
1624               && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1625               && (info->shared
1626                   || (!h->def_regular
1627                       && h->root.type != bfd_link_hash_undefined)))
1628             {
1629               (*_bfd_error_handler)
1630                 ((h->root.type == bfd_link_hash_undefined)
1631                  /* We shouldn't get here for GCC-emitted code.  */
1632                  ? _("%B, section %A: relocation %s has an undefined"
1633                      " reference to `%s', perhaps a declaration mixup?")
1634                  : ("%B, section %A: relocation %s is"
1635                      " not allowed for `%s', a global symbol with default"
1636                      " visibility, perhaps a declaration mixup?"),
1637                  input_bfd,
1638                  input_section,
1639                  cris_elf_howto_table[r_type].name,
1640                  symname != NULL && symname[0] != '\0'
1641                  ? symname : _("[whose name is lost]"));
1642               bfd_set_error (bfd_error_bad_value);
1643               return FALSE;
1644             }
1645
1646           BFD_ASSERT ((input_section->flags & SEC_ALLOC) == 0
1647                       || elf_cris_hash_table (info)->dtpmod_refcount != 0);
1648
1649           /* Fill in a R_CRIS_DTPMOD reloc at offset 3 if we haven't
1650              already done so.  Note that we do this in .got.plt, not
1651              in .got, as .got.plt contains the first part, still the
1652              reloc is against .got, because the linker script directs
1653              (is required to direct) them both into .got.  */
1654           if (elf_cris_hash_table (info)->dtpmod_refcount > 0
1655               && (input_section->flags & SEC_ALLOC) != 0)
1656             {
1657               asection *sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1658               BFD_ASSERT (sgotplt != NULL);
1659
1660               if (info->shared)
1661                 {
1662                   Elf_Internal_Rela outrel;
1663                   bfd_byte *loc;
1664
1665                   if (srelgot == NULL)
1666                     srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1667                   BFD_ASSERT (srelgot != NULL);
1668                   loc = srelgot->contents;
1669                   loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1670
1671                   bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 12);
1672                   bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 16);
1673                   outrel.r_offset = (sgotplt->output_section->vma
1674                                      + sgotplt->output_offset
1675                                      + 12);
1676                   outrel.r_info = ELF32_R_INFO (0, R_CRIS_DTPMOD);
1677                   outrel.r_addend = 0;
1678                   bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1679                 }
1680               else
1681                 {
1682                   /* For an executable, the GOT entry contents is known.  */
1683                   bfd_put_32 (output_bfd, (bfd_vma) 1, sgotplt->contents + 12);
1684                   bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 16);
1685                 }
1686
1687               /* Reverse the sign to mark that we've emitted the
1688                  required GOT entry.  */
1689               elf_cris_hash_table (info)->dtpmod_refcount
1690                 = -elf_cris_hash_table (info)->dtpmod_refcount;
1691             }
1692
1693           /* The relocation is the offset from the start of the module
1694              TLS block to the (local) symbol.  */
1695           relocation -= elf_hash_table (info)->tls_sec == NULL
1696             ? 0 : elf_hash_table (info)->tls_sec->vma;
1697           break;
1698
1699         case R_CRIS_32_GD:
1700           if (info->shared)
1701             {
1702               bfd_set_error (bfd_error_invalid_operation);
1703
1704               /* We've already informed in cris_elf_check_relocs that
1705                  this is an error.  */
1706               return FALSE;
1707             }
1708           /* Fall through.  */
1709
1710         case R_CRIS_16_GOT_GD:
1711         case R_CRIS_32_GOT_GD:
1712           if (rel->r_addend != 0)
1713             {
1714               /* We can't do anything for a relocation which is against a
1715                  symbol *plus offset*.  The GOT holds relocations for
1716                  symbols.  Make this an error; the compiler isn't allowed
1717                  to pass us these kinds of things.  */
1718               (*_bfd_error_handler)
1719                 (_("%B, section %A: relocation %s with non-zero addend %d"
1720                    " against symbol `%s'"),
1721                  input_bfd,
1722                  input_section,
1723                  cris_elf_howto_table[r_type].name,
1724                  rel->r_addend,
1725                  symname[0] != '\0' ? symname : _("[whose name is lost]"));
1726
1727               bfd_set_error (bfd_error_bad_value);
1728               return FALSE;
1729             }
1730
1731           if (!info->shared
1732               && (h == NULL || h->def_regular || ELF_COMMON_DEF_P (h)))
1733             {
1734               /* Known contents of the GOT.  */
1735               bfd_vma off;
1736
1737               /* The symbol is defined in the program, so just write
1738                  (1, known_tpoffset) into the GOT.  */
1739               relocation -= elf_hash_table (info)->tls_sec->vma;
1740
1741               if (h != NULL)
1742                 {
1743                   off = elf_cris_hash_entry (h)->tprel_refcount > 0
1744                     ? h->got.offset + 4 : h->got.offset;
1745                 }
1746               else
1747                 {
1748                   off = local_got_offsets[r_symndx];
1749                   if (local_got_offsets[LGOT_TPREL_NDX (r_symndx)])
1750                     off += 4;
1751                 }
1752
1753               /* We use bit 1 of the offset as a flag for GOT entry with
1754                  the R_CRIS_DTP reloc, setting it when we've emitted the
1755                  GOT entry and reloc.  Bit 0 is used for R_CRIS_32_TPREL
1756                  relocs.  */
1757               if ((off & 2) == 0)
1758                 {
1759                   off &= ~3;
1760
1761                   if (h != NULL)
1762                     h->got.offset |= 2;
1763                   else
1764                     local_got_offsets[r_symndx] |= 2;
1765
1766                   bfd_put_32 (output_bfd, 1, sgot->contents + off);
1767                   bfd_put_32 (output_bfd, relocation, sgot->contents + off + 4);
1768                 }
1769               else
1770                 off &= ~3;
1771
1772               relocation = sgot->output_offset + off
1773                 + (r_type == R_CRIS_32_GD ? sgot->output_section->vma : 0);
1774             }
1775           else
1776             {
1777               /* Not all parts of the GOT entry are known; emit a real
1778                  relocation.  */
1779               bfd_vma off;
1780
1781               if (h != NULL)
1782                 off = elf_cris_hash_entry (h)->tprel_refcount > 0
1783                   ? h->got.offset + 4 : h->got.offset;
1784               else
1785                 {
1786                   off = local_got_offsets[r_symndx];
1787                   if (local_got_offsets[LGOT_TPREL_NDX (r_symndx)])
1788                     off += 4;
1789                 }
1790
1791               /* See above re bit 1 and bit 0 usage.  */
1792               if ((off & 2) == 0)
1793                 {
1794                   Elf_Internal_Rela outrel;
1795                   bfd_byte *loc;
1796
1797                   off &= ~3;
1798
1799                   if (h != NULL)
1800                     h->got.offset |= 2;
1801                   else
1802                     local_got_offsets[r_symndx] |= 2;
1803
1804                   /* Clear the target contents of the GOT (just as a
1805                      gesture; it's already cleared on allocation): this
1806                      relocation is not like the other dynrelocs.  */
1807                   bfd_put_32 (output_bfd, 0, sgot->contents + off);
1808                   bfd_put_32 (output_bfd, 0, sgot->contents + off + 4);
1809
1810                   if (srelgot == NULL)
1811                     srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1812                   BFD_ASSERT (srelgot != NULL);
1813
1814                   if (h != NULL && h->dynindx != -1)
1815                     {
1816                       outrel.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_DTP);
1817                       relocation = 0;
1818                     }
1819                   else
1820                     {
1821                       outrel.r_info = ELF32_R_INFO (0, R_CRIS_DTP);
1822
1823                       /* NULL if we had an error.  */
1824                       relocation -= elf_hash_table (info)->tls_sec == NULL
1825                         ? 0 : elf_hash_table (info)->tls_sec->vma;
1826                     }
1827
1828                   outrel.r_offset = (sgot->output_section->vma
1829                                      + sgot->output_offset
1830                                      + off);
1831                   outrel.r_addend = relocation;
1832                   loc = srelgot->contents;
1833                   loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1834
1835                   /* NULL if we had an error.  */
1836                   if (srelgot->contents != NULL)
1837                     bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1838                 }
1839               else
1840                 off &= ~3;
1841
1842               relocation = sgot->output_offset + off
1843                 + (r_type == R_CRIS_32_GD ? sgot->output_section->vma : 0);
1844             }
1845
1846           /* The GOT-relative offset to the GOT entry is the
1847              relocation, or for R_CRIS_32_GD, the actual address of
1848              the GOT entry.  */
1849           break;
1850
1851         case R_CRIS_32_IE:
1852           if (info->shared)
1853             {
1854               bfd_set_error (bfd_error_invalid_operation);
1855
1856               /* We've already informed in cris_elf_check_relocs that
1857                  this is an error.  */
1858               return FALSE;
1859             }
1860           /* Fall through.  */
1861
1862         case R_CRIS_32_GOT_TPREL:
1863         case R_CRIS_16_GOT_TPREL:
1864           if (rel->r_addend != 0)
1865             {
1866               /* We can't do anything for a relocation which is
1867                  against a symbol *plus offset*.  GOT holds
1868                  relocations for symbols.  Make this an error; the
1869                  compiler isn't allowed to pass us these kinds of
1870                  things.  */
1871               (*_bfd_error_handler)
1872                 (_("%B, section %A: relocation %s with non-zero addend %d"
1873                    " against symbol `%s'"),
1874                  input_bfd,
1875                  input_section,
1876                  cris_elf_howto_table[r_type].name,
1877                  rel->r_addend,
1878                  symname[0] != '\0' ? symname : _("[whose name is lost]"));
1879               bfd_set_error (bfd_error_bad_value);
1880               return FALSE;
1881             }
1882
1883           if (!info->shared && (h == NULL || h->def_regular))
1884             {
1885               /* Known contents of the GOT.  */
1886               bfd_vma off;
1887
1888               /* The symbol is defined in the program, so just write
1889                  the -prog_tls_size+known_tpoffset into the GOT.  */
1890               relocation -= elf_hash_table (info)->tls_sec->vma;
1891               relocation -= elf_hash_table (info)->tls_size;
1892
1893               if (h != NULL)
1894                 off = h->got.offset;
1895               else
1896                 off = local_got_offsets[r_symndx];
1897
1898               /* Bit 0 is used to mark whether we've emitted the required
1899                  entry (and if needed R_CRIS_32_TPREL reloc).  Bit 1
1900                  is used similarly for R_CRIS_DTP, see above.  */
1901               if ((off & 1) == 0)
1902                 {
1903                   off &= ~3;
1904
1905                   if (h != NULL)
1906                     h->got.offset |= 1;
1907                   else
1908                     local_got_offsets[r_symndx] |= 1;
1909
1910                   bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1911                 }
1912               else
1913                 off &= ~3;
1914
1915               relocation = sgot->output_offset + off
1916                 + (r_type == R_CRIS_32_IE ? sgot->output_section->vma : 0);
1917             }
1918           else
1919             {
1920               /* Emit a real relocation.  */
1921               bfd_vma off;
1922
1923               if (h != NULL)
1924                 off = h->got.offset;
1925               else
1926                 off = local_got_offsets[r_symndx];
1927
1928               /* See above re usage of bit 0 and 1.  */
1929               if ((off & 1) == 0)
1930                 {
1931                   Elf_Internal_Rela outrel;
1932                   bfd_byte *loc;
1933
1934                   off &= ~3;
1935
1936                   if (h != NULL)
1937                     h->got.offset |= 1;
1938                   else
1939                     local_got_offsets[r_symndx] |= 1;
1940
1941                   if (srelgot == NULL)
1942                     srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1943                   BFD_ASSERT (srelgot != NULL);
1944
1945                   if (h != NULL && h->dynindx != -1)
1946                     {
1947                       outrel.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_32_TPREL);
1948                       relocation = 0;
1949                     }
1950                   else
1951                     {
1952                       outrel.r_info = ELF32_R_INFO (0, R_CRIS_32_TPREL);
1953
1954                       /* NULL if we had an error.  */
1955                       relocation -= elf_hash_table (info)->tls_sec == NULL
1956                         ? 0 : elf_hash_table (info)->tls_sec->vma;
1957                     }
1958
1959                   /* Just "define" the initial contents in some
1960                      semi-logical way.  */
1961                   bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1962
1963                   outrel.r_offset = (sgot->output_section->vma
1964                                      + sgot->output_offset
1965                                      + off);
1966                   outrel.r_addend = relocation;
1967                   loc = srelgot->contents;
1968                   loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1969                   /* NULL if we had an error.  */
1970                   if (srelgot->contents != NULL)
1971                     bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1972                 }
1973               else
1974                 off &= ~3;
1975
1976               relocation = sgot->output_offset + off
1977                 + (r_type == R_CRIS_32_IE ? sgot->output_section->vma : 0);
1978             }
1979
1980           /* The GOT-relative offset to the GOT entry is the relocation,
1981              or for R_CRIS_32_GD, the actual address of the GOT entry.  */
1982           break;
1983
1984         case R_CRIS_16_TPREL:
1985         case R_CRIS_32_TPREL:
1986           /* This relocation must only be performed against symbols
1987              defined in an ordinary (non-DSO) object.  */
1988           if (info->shared)
1989             {
1990               bfd_set_error (bfd_error_invalid_operation);
1991
1992               /* We've already informed in cris_elf_check_relocs that
1993                  this is an error.  */
1994               return FALSE;
1995             }
1996
1997           if (h != NULL
1998               && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1999               && !(h->def_regular || ELF_COMMON_DEF_P (h))
2000               /* If it's undefined, then an error message has already
2001                  been emitted.  */
2002               && h->root.type != bfd_link_hash_undefined)
2003             {
2004               (*_bfd_error_handler)
2005                 (_("%B, section %A: relocation %s is"
2006                    " not allowed for symbol: `%s'"
2007                    " which is defined outside the program,"
2008                    " perhaps a declaration mixup?"),
2009                  input_bfd,
2010                  input_section,
2011                  cris_elf_howto_table[r_type].name,
2012                  symname);
2013               bfd_set_error (bfd_error_bad_value);
2014               return FALSE;
2015             }
2016
2017           /* NULL if we had an error.  */
2018           relocation -= elf_hash_table (info)->tls_sec == NULL
2019             ? 0
2020             : (elf_hash_table (info)->tls_sec->vma
2021                + elf_hash_table (info)->tls_size);
2022
2023           /* The TLS-relative offset is the relocation.  */
2024           break;
2025
2026         default:
2027           BFD_FAIL ();
2028           return FALSE;
2029         }
2030
2031       r = cris_final_link_relocate (howto, input_bfd, input_section,
2032                                      contents, rel, relocation);
2033
2034       if (r != bfd_reloc_ok)
2035         {
2036           const char * msg = (const char *) NULL;
2037
2038           switch (r)
2039             {
2040             case bfd_reloc_overflow:
2041               r = info->callbacks->reloc_overflow
2042                 (info, (h ? &h->root : NULL), symname, howto->name,
2043                  (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2044               if (additional_relocation_error_msg_count > 0)
2045                 {
2046                   additional_relocation_error_msg_count--;
2047                   switch (r_type)
2048                     {
2049                     case R_CRIS_16_GOTPLT:
2050                     case R_CRIS_16_GOT:
2051
2052                       /* Not just TLS is involved here, so we make
2053                          generation and message depend on -fPIC/-fpic
2054                          only.  */
2055                     case R_CRIS_16_GOT_TPREL:
2056                     case R_CRIS_16_GOT_GD:
2057                       (*_bfd_error_handler)
2058                         (_("(too many global variables for -fpic:"
2059                            " recompile with -fPIC)"));
2060                       break;
2061
2062                     case R_CRIS_16_TPREL:
2063                     case R_CRIS_16_DTPREL:
2064                       (*_bfd_error_handler)
2065                         (_("(thread-local data too big for -fpic or"
2066                            " -msmall-tls: recompile with -fPIC or"
2067                            " -mno-small-tls)"));
2068                       break;
2069
2070                       /* No known cause for overflow for other relocs.  */
2071                     default:
2072                       break;
2073                     }
2074                 }
2075               break;
2076
2077             case bfd_reloc_undefined:
2078               r = info->callbacks->undefined_symbol
2079                 (info, symname, input_bfd, input_section, rel->r_offset,
2080                  TRUE);
2081               break;
2082
2083             case bfd_reloc_outofrange:
2084               msg = _("internal error: out of range error");
2085               break;
2086
2087             case bfd_reloc_notsupported:
2088               msg = _("internal error: unsupported relocation error");
2089               break;
2090
2091             case bfd_reloc_dangerous:
2092               msg = _("internal error: dangerous relocation");
2093               break;
2094
2095             default:
2096               msg = _("internal error: unknown error");
2097               break;
2098             }
2099
2100           if (msg)
2101             r = info->callbacks->warning
2102               (info, msg, symname, input_bfd, input_section, rel->r_offset);
2103
2104           if (! r)
2105             return FALSE;
2106         }
2107     }
2108
2109   return TRUE;
2110 }
2111 \f
2112 /* Finish up dynamic symbol handling.  We set the contents of various
2113    dynamic sections here.  */
2114
2115 static bfd_boolean
2116 elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
2117      bfd *output_bfd;
2118      struct bfd_link_info *info;
2119      struct elf_link_hash_entry *h;
2120      Elf_Internal_Sym *sym;
2121 {
2122   bfd *dynobj;
2123
2124   /* Where in the plt entry to put values.  */
2125   int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
2126
2127   /* What offset to add to the distance to the first PLT entry for the
2128      value at plt_off3.   */
2129   int plt_off3_value_bias = 4;
2130
2131   /* Where in the PLT entry the call-dynlink-stub is (happens to be same
2132      for PIC and non-PIC for v32 and pre-v32).  */
2133   int plt_stub_offset = 8;
2134   int plt_entry_size = PLT_ENTRY_SIZE;
2135   const bfd_byte *plt_entry = elf_cris_plt_entry;
2136   const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry;
2137
2138   /* Adjust the various PLT entry offsets.  */
2139   if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
2140     {
2141       plt_off2 = 14;
2142       plt_off3 = 20;
2143       plt_off3_value_bias = -2;
2144       plt_stub_offset = 12;
2145       plt_entry_size = PLT_ENTRY_SIZE_V32;
2146       plt_entry = elf_cris_plt_entry_v32;
2147       plt_pic_entry = elf_cris_pic_plt_entry_v32;
2148     }
2149
2150   dynobj = elf_hash_table (info)->dynobj;
2151
2152   if (h->plt.offset != (bfd_vma) -1)
2153     {
2154       asection *splt;
2155       asection *sgotplt;
2156       asection *sgot;
2157       asection *srela;
2158       bfd_vma got_base;
2159
2160       bfd_vma gotplt_offset
2161         = elf_cris_hash_entry (h)->gotplt_offset;
2162       Elf_Internal_Rela rela;
2163       bfd_byte *loc;
2164       bfd_boolean has_gotplt = gotplt_offset != 0;
2165
2166       /* Get the index in the .rela.plt relocations for the .got.plt
2167          entry that corresponds to this symbol.
2168          We have to count backwards here, and the result is only valid
2169          as an index into .rela.plt.  We also have to undo the effect
2170          of the R_CRIS_DTPMOD entry at .got index 3 (offset 12 into
2171          .got.plt) for which gotplt_offset is adjusted, because while
2172          that entry goes into .got.plt, its relocation goes into
2173          .rela.got, not .rela.plt.  (It's not PLT-specific; not to be
2174          processed as part of the runtime lazy .rela.plt relocation).
2175          FIXME: There be literal constants here...  */
2176       bfd_vma rela_plt_index
2177         = (elf_cris_hash_table (info)->dtpmod_refcount != 0
2178            ? gotplt_offset/4 - 2 - 3 : gotplt_offset/4 - 3);
2179
2180       /* Get the offset into the .got table of the entry that corresponds
2181          to this function.  Note that we embed knowledge that "incoming"
2182          .got goes after .got.plt in the output without padding (pointer
2183          aligned).  However, that knowledge is present in several other
2184          places too.  */
2185       bfd_vma got_offset
2186         = (has_gotplt
2187            ? gotplt_offset
2188            : h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);
2189
2190       /* This symbol has an entry in the procedure linkage table.  Set it
2191          up.  */
2192
2193       BFD_ASSERT (h->dynindx != -1);
2194
2195       splt = bfd_get_section_by_name (dynobj, ".plt");
2196       sgot = bfd_get_section_by_name (dynobj, ".got");
2197       sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
2198       srela = bfd_get_section_by_name (dynobj, ".rela.plt");
2199       BFD_ASSERT (splt != NULL && sgotplt != NULL
2200                   && (! has_gotplt || srela != NULL));
2201
2202       got_base = sgotplt->output_section->vma + sgotplt->output_offset;
2203
2204       /* Fill in the entry in the procedure linkage table.  */
2205       if (! info->shared)
2206         {
2207           memcpy (splt->contents + h->plt.offset, plt_entry,
2208                   plt_entry_size);
2209
2210           /* We need to enter the absolute address of the GOT entry here.  */
2211           bfd_put_32 (output_bfd, got_base + got_offset,
2212                       splt->contents + h->plt.offset + plt_off1);
2213         }
2214       else
2215         {
2216           memcpy (splt->contents + h->plt.offset, plt_pic_entry,
2217                   plt_entry_size);
2218           bfd_put_32 (output_bfd, got_offset,
2219                       splt->contents + h->plt.offset + plt_off1);
2220         }
2221
2222       /* Fill in the plt entry and make a relocation, if this is a "real"
2223          PLT entry.  */
2224       if (has_gotplt)
2225         {
2226           /* Fill in the offset to the reloc table.  */
2227           bfd_put_32 (output_bfd,
2228                       rela_plt_index * sizeof (Elf32_External_Rela),
2229                       splt->contents + h->plt.offset + plt_off2);
2230
2231           /* Fill in the offset to the first PLT entry, where to "jump".  */
2232           bfd_put_32 (output_bfd,
2233                       - (h->plt.offset + plt_off3 + plt_off3_value_bias),
2234                       splt->contents + h->plt.offset + plt_off3);
2235
2236           /* Fill in the entry in the global offset table with the address of
2237              the relocating stub.  */
2238           bfd_put_32 (output_bfd,
2239                       (splt->output_section->vma
2240                        + splt->output_offset
2241                        + h->plt.offset
2242                        + plt_stub_offset),
2243                       sgotplt->contents + got_offset);
2244
2245           /* Fill in the entry in the .rela.plt section.  */
2246           rela.r_offset = (sgotplt->output_section->vma
2247                            + sgotplt->output_offset
2248                            + got_offset);
2249           rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
2250           rela.r_addend = 0;
2251           loc = srela->contents + rela_plt_index * sizeof (Elf32_External_Rela);
2252           bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2253         }
2254
2255       if (!h->def_regular)
2256         {
2257           /* Mark the symbol as undefined, rather than as defined in
2258              the .plt section.  Leave the value alone.  */
2259           sym->st_shndx = SHN_UNDEF;
2260
2261           /* FIXME: From elf32-sparc.c 2001-02-19 (1.18).  I still don't
2262              know whether resetting the value is significant; if it really
2263              is, rather than a quirk or bug in the sparc port, then I
2264              believe we'd see this elsewhere.  */
2265           /* If the symbol is weak, we do need to clear the value.
2266              Otherwise, the PLT entry would provide a definition for
2267              the symbol even if the symbol wasn't defined anywhere,
2268              and so the symbol would never be NULL.  */
2269           if (!h->ref_regular_nonweak)
2270             sym->st_value = 0;
2271         }
2272     }
2273
2274   /* For an ordinary program, we emit .got relocs only for symbols that
2275      are in the dynamic-symbols table and are either defined by the
2276      program or are undefined weak symbols, or are function symbols
2277      where we do not output a PLT: the PLT reloc was output above and all
2278      references to the function symbol are redirected to the PLT.  */
2279   if (h->got.offset != (bfd_vma) -1
2280       && (elf_cris_hash_entry (h)->reg_got_refcount > 0)
2281       && (info->shared
2282           || (h->dynindx != -1
2283               && h->plt.offset == (bfd_vma) -1
2284               && !h->def_regular
2285               && h->root.type != bfd_link_hash_undefweak)))
2286     {
2287       asection *sgot;
2288       asection *srela;
2289       Elf_Internal_Rela rela;
2290       bfd_byte *loc;
2291       bfd_byte *where;
2292
2293       /* This symbol has an entry in the global offset table.  Set it up.  */
2294
2295       sgot = bfd_get_section_by_name (dynobj, ".got");
2296       srela = bfd_get_section_by_name (dynobj, ".rela.got");
2297       BFD_ASSERT (sgot != NULL && srela != NULL);
2298
2299       rela.r_offset = (sgot->output_section->vma
2300                        + sgot->output_offset
2301                        + (h->got.offset &~ (bfd_vma) 1));
2302
2303       /* If this is a static link, or it is a -Bsymbolic link and the
2304          symbol is defined locally or was forced to be local because
2305          of a version file, we just want to emit a RELATIVE reloc.
2306          The entry in the global offset table will already have been
2307          initialized in the relocate_section function.  */
2308       where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
2309       if (! elf_hash_table (info)->dynamic_sections_created
2310           || (info->shared
2311               && (info->symbolic || h->dynindx == -1)
2312               && h->def_regular))
2313         {
2314           rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
2315           rela.r_addend = bfd_get_signed_32 (output_bfd, where);
2316         }
2317       else
2318         {
2319           bfd_put_32 (output_bfd, (bfd_vma) 0, where);
2320           rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
2321           rela.r_addend = 0;
2322         }
2323
2324       loc = srela->contents;
2325       loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
2326       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2327     }
2328
2329   if (h->needs_copy)
2330     {
2331       asection *s;
2332       Elf_Internal_Rela rela;
2333       bfd_byte *loc;
2334
2335       /* This symbol needs a copy reloc.  Set it up.  */
2336
2337       BFD_ASSERT (h->dynindx != -1
2338                   && (h->root.type == bfd_link_hash_defined
2339                       || h->root.type == bfd_link_hash_defweak));
2340
2341       s = bfd_get_section_by_name (h->root.u.def.section->owner,
2342                                    ".rela.bss");
2343       BFD_ASSERT (s != NULL);
2344
2345       rela.r_offset = (h->root.u.def.value
2346                        + h->root.u.def.section->output_section->vma
2347                        + h->root.u.def.section->output_offset);
2348       rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
2349       rela.r_addend = 0;
2350       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
2351       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2352     }
2353
2354   /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
2355   if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2356       || h == elf_hash_table (info)->hgot)
2357     sym->st_shndx = SHN_ABS;
2358
2359   return TRUE;
2360 }
2361 \f
2362 /* Finish up the dynamic sections.  Do *not* emit relocs here, as their
2363    offsets were changed, as part of -z combreloc handling, from those we
2364    computed.  */
2365
2366 static bfd_boolean
2367 elf_cris_finish_dynamic_sections (output_bfd, info)
2368      bfd *output_bfd;
2369      struct bfd_link_info *info;
2370 {
2371   bfd *dynobj;
2372   asection *sgot;
2373   asection *sdyn;
2374
2375   dynobj = elf_hash_table (info)->dynobj;
2376
2377   sgot = bfd_get_section_by_name (dynobj, ".got.plt");
2378   BFD_ASSERT (sgot != NULL);
2379   sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2380
2381   if (elf_hash_table (info)->dynamic_sections_created)
2382     {
2383       asection *splt;
2384       Elf32_External_Dyn *dyncon, *dynconend;
2385
2386       splt = bfd_get_section_by_name (dynobj, ".plt");
2387       BFD_ASSERT (splt != NULL && sdyn != NULL);
2388
2389       dyncon = (Elf32_External_Dyn *) sdyn->contents;
2390       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
2391       for (; dyncon < dynconend; dyncon++)
2392         {
2393           Elf_Internal_Dyn dyn;
2394           asection *s;
2395
2396           bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2397
2398           switch (dyn.d_tag)
2399             {
2400             default:
2401               break;
2402
2403             case DT_PLTGOT:
2404               s = bfd_get_section_by_name (output_bfd, ".got");
2405               BFD_ASSERT (s != NULL);
2406               dyn.d_un.d_ptr = s->vma;
2407               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2408               break;
2409
2410             case DT_JMPREL:
2411               /* Yes, we *can* have a .plt and no .plt.rela, for instance
2412                  if all symbols are found in the .got (not .got.plt).  */
2413               s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2414               dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
2415               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2416               break;
2417
2418             case DT_PLTRELSZ:
2419               s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2420               if (s == NULL)
2421                 dyn.d_un.d_val = 0;
2422               else
2423                 dyn.d_un.d_val = s->size;
2424               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2425               break;
2426
2427             case DT_RELASZ:
2428               /* The procedure linkage table relocs (DT_JMPREL) should
2429                  not be included in the overall relocs (DT_RELA).
2430                  Therefore, we override the DT_RELASZ entry here to
2431                  make it not include the JMPREL relocs.  Since the
2432                  linker script arranges for .rela.plt to follow all
2433                  other relocation sections, we don't have to worry
2434                  about changing the DT_RELA entry.  */
2435               s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2436               if (s != NULL)
2437                 dyn.d_un.d_val -= s->size;
2438               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2439               break;
2440             }
2441         }
2442
2443       /* Fill in the first entry in the procedure linkage table.  */
2444       if (splt->size > 0)
2445         {
2446           if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
2447             {
2448               if (info->shared)
2449                 memcpy (splt->contents, elf_cris_pic_plt0_entry_v32,
2450                         PLT_ENTRY_SIZE_V32);
2451               else
2452                 {
2453                   memcpy (splt->contents, elf_cris_plt0_entry_v32,
2454                           PLT_ENTRY_SIZE_V32);
2455                   bfd_put_32 (output_bfd,
2456                               sgot->output_section->vma
2457                               + sgot->output_offset + 4,
2458                               splt->contents + 4);
2459
2460                   elf_section_data (splt->output_section)->this_hdr.sh_entsize
2461                     = PLT_ENTRY_SIZE_V32;
2462                 }
2463             }
2464           else
2465             {
2466               if (info->shared)
2467                 memcpy (splt->contents, elf_cris_pic_plt0_entry,
2468                         PLT_ENTRY_SIZE);
2469               else
2470                 {
2471                   memcpy (splt->contents, elf_cris_plt0_entry,
2472                           PLT_ENTRY_SIZE);
2473                   bfd_put_32 (output_bfd,
2474                               sgot->output_section->vma
2475                               + sgot->output_offset + 4,
2476                               splt->contents + 6);
2477                   bfd_put_32 (output_bfd,
2478                               sgot->output_section->vma
2479                               + sgot->output_offset + 8,
2480                               splt->contents + 14);
2481
2482                   elf_section_data (splt->output_section)->this_hdr.sh_entsize
2483                     = PLT_ENTRY_SIZE;
2484                 }
2485             }
2486         }
2487     }
2488
2489   /* Fill in the first three entries in the global offset table.  */
2490   if (sgot->size > 0)
2491     {
2492       if (sdyn == NULL)
2493         bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
2494       else
2495         bfd_put_32 (output_bfd,
2496                     sdyn->output_section->vma + sdyn->output_offset,
2497                     sgot->contents);
2498       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
2499       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
2500     }
2501
2502   elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
2503
2504   return TRUE;
2505 }
2506 \f
2507 /* Return the section that should be marked against GC for a given
2508    relocation.  */
2509
2510 static asection *
2511 cris_elf_gc_mark_hook (asection *sec,
2512                        struct bfd_link_info *info,
2513                        Elf_Internal_Rela *rel,
2514                        struct elf_link_hash_entry *h,
2515                        Elf_Internal_Sym *sym)
2516 {
2517   enum elf_cris_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
2518   if (h != NULL)
2519     switch (r_type)
2520       {
2521       case R_CRIS_GNU_VTINHERIT:
2522       case R_CRIS_GNU_VTENTRY:
2523         return NULL;
2524
2525       default:
2526         break;
2527       }
2528
2529   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2530 }
2531
2532 /* Update the got entry reference counts for the section being removed.  */
2533
2534 static bfd_boolean
2535 cris_elf_gc_sweep_hook (bfd *abfd,
2536                         struct bfd_link_info *info,
2537                         asection *sec,
2538                         const Elf_Internal_Rela *relocs)
2539 {
2540   Elf_Internal_Shdr *symtab_hdr;
2541   struct elf_link_hash_entry **sym_hashes;
2542   bfd_signed_vma *local_got_refcounts;
2543   const Elf_Internal_Rela *rel, *relend;
2544   bfd *dynobj;
2545   asection *sgot;
2546   asection *srelgot;
2547
2548   if (info->relocatable)
2549     return TRUE;
2550
2551   dynobj = elf_hash_table (info)->dynobj;
2552   if (dynobj == NULL)
2553     return TRUE;
2554
2555   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2556   sym_hashes = elf_sym_hashes (abfd);
2557   local_got_refcounts = elf_local_got_refcounts (abfd);
2558
2559   sgot = bfd_get_section_by_name (dynobj, ".got");
2560   srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2561
2562   relend = relocs + sec->reloc_count;
2563   for (rel = relocs; rel < relend; rel++)
2564     {
2565       unsigned long r_symndx;
2566       struct elf_link_hash_entry *h = NULL;
2567       bfd_signed_vma got_element_size = 4;
2568       bfd_signed_vma *specific_refcount = NULL;
2569       enum elf_cris_reloc_type r_type;
2570
2571       r_symndx = ELF32_R_SYM (rel->r_info);
2572       if (r_symndx >= symtab_hdr->sh_info)
2573         {
2574           h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2575           while (h->root.type == bfd_link_hash_indirect
2576                  || h->root.type == bfd_link_hash_warning)
2577             h = (struct elf_link_hash_entry *) h->root.u.i.link;
2578         }
2579
2580       r_type = ELF32_R_TYPE (rel->r_info);
2581       switch (r_type)
2582         {
2583         case R_CRIS_32_GOT:
2584         case R_CRIS_16_GOT:
2585         case R_CRIS_16_GOTPLT:
2586         case R_CRIS_32_GOTPLT:
2587           specific_refcount = h != NULL
2588             ? &((struct elf_cris_link_hash_entry *) h)->reg_got_refcount
2589             : &local_got_refcounts[LGOT_REG_NDX (r_symndx)];
2590           break;
2591
2592         case R_CRIS_32_GD:
2593         case R_CRIS_32_GOT_GD:
2594         case R_CRIS_16_GOT_GD:
2595           got_element_size = 8;
2596           specific_refcount = h != NULL
2597             ? &((struct elf_cris_link_hash_entry *) h)->dtp_refcount
2598             : &local_got_refcounts[LGOT_DTP_NDX (r_symndx)];
2599           break;
2600
2601         case R_CRIS_32_IE:
2602         case R_CRIS_16_GOT_TPREL:
2603         case R_CRIS_32_GOT_TPREL:
2604           specific_refcount = h != NULL
2605             ? &((struct elf_cris_link_hash_entry *) h)->tprel_refcount
2606             : &local_got_refcounts[LGOT_TPREL_NDX (r_symndx)];
2607           break;
2608
2609         default:
2610           break;
2611         }
2612
2613       switch (r_type)
2614         {
2615         case R_CRIS_32_IE:
2616         case R_CRIS_32_GD:
2617         case R_CRIS_16_GOT_TPREL:
2618         case R_CRIS_32_GOT_TPREL:
2619         case R_CRIS_32_GOT_GD:
2620         case R_CRIS_16_GOT_GD:
2621         case R_CRIS_16_GOT:
2622         case R_CRIS_32_GOT:
2623           if (h != NULL)
2624             {
2625               /* If the counters are 0 when we got here, we've
2626                  miscounted somehow somewhere, an internal error.  */
2627               BFD_ASSERT (h->got.refcount > 0);
2628               --h->got.refcount;
2629
2630               BFD_ASSERT (*specific_refcount > 0);
2631               --*specific_refcount;
2632               if (*specific_refcount == 0)
2633                 {
2634                   /* We don't need the .got entry any more.  */
2635                   sgot->size -= got_element_size;
2636                   srelgot->size -= sizeof (Elf32_External_Rela);
2637                 }
2638               break;
2639             }
2640
2641         local_got_reloc:
2642           if (local_got_refcounts != NULL)
2643             {
2644               /* If the counters are 0 when we got here, we've
2645                  miscounted somehow somewhere, an internal error.  */
2646               BFD_ASSERT (local_got_refcounts[r_symndx] > 0);
2647               --local_got_refcounts[r_symndx];
2648
2649               BFD_ASSERT (*specific_refcount > 0);
2650               --*specific_refcount;
2651               if (*specific_refcount == 0)
2652                 {
2653                   /* We don't need the .got entry any more.  */
2654                   sgot->size -= got_element_size;
2655                   if (info->shared)
2656                     srelgot->size -= sizeof (Elf32_External_Rela);
2657                 }
2658             }
2659           break;
2660
2661         case R_CRIS_16_GOTPLT:
2662         case R_CRIS_32_GOTPLT:
2663           /* For local symbols, treat these like GOT relocs.  */
2664           if (h == NULL)
2665             goto local_got_reloc;
2666           /* Fall through.  */
2667
2668         case R_CRIS_32_PLT_GOTREL:
2669           /* FIXME: We don't garbage-collect away the .got section.  */
2670           if (local_got_refcounts != NULL)
2671             local_got_refcounts[-1]--;
2672           /* Fall through.  */
2673
2674         case R_CRIS_8_PCREL:
2675         case R_CRIS_16_PCREL:
2676         case R_CRIS_32_PCREL:
2677         case R_CRIS_32_PLT_PCREL:
2678           if (h != NULL)
2679             {
2680               if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2681                   && h->plt.refcount > 0)
2682                 --h->plt.refcount;
2683             }
2684           break;
2685
2686         case R_CRIS_32_DTPREL:
2687           /* This'd be a .dtpreld entry in e.g. debug info.  */
2688           if ((sec->flags & SEC_ALLOC) == 0)
2689             break;
2690           /* Fall through.  */
2691         case R_CRIS_16_DTPREL:
2692           elf_cris_hash_table (info)->dtpmod_refcount--;
2693           if (elf_cris_hash_table (info)->dtpmod_refcount == 0)
2694             elf_cris_hash_table (info)->next_gotplt_entry -= 8;
2695           BFD_ASSERT (local_got_refcounts != NULL);
2696           local_got_refcounts[-1]--;
2697           break;
2698
2699         default:
2700           break;
2701         }
2702     }
2703
2704   return TRUE;
2705 }
2706
2707 /* The elf_backend_plt_sym_val hook function.  */
2708
2709 static bfd_vma
2710 cris_elf_plt_sym_val (bfd_vma i, const asection *plt,
2711                       const arelent *rel ATTRIBUTE_UNUSED)
2712 {
2713   bfd_size_type plt_entry_size;
2714
2715   plt_entry_size
2716     = (bfd_get_mach (plt->owner) == bfd_mach_cris_v32
2717        ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
2718
2719   return plt->vma + (i + 1) * plt_entry_size;
2720 }
2721
2722 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
2723    entry but we found we will not create any.  Called when we find we will
2724    not have any PLT for this symbol, by for example
2725    elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
2726    or elf_cris_size_dynamic_sections if no dynamic sections will be
2727    created (we're only linking static objects).  */
2728
2729 static bfd_boolean
2730 elf_cris_adjust_gotplt_to_got (h, p)
2731      struct elf_cris_link_hash_entry *h;
2732      PTR p;
2733 {
2734   struct bfd_link_info *info = (struct bfd_link_info *) p;
2735
2736   if (h->root.root.type == bfd_link_hash_warning)
2737     h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
2738
2739   /* If nobody wanted a GOTPLT with this symbol, we're done.  */
2740   if (h->gotplt_refcount <= 0)
2741     return TRUE;
2742
2743   if (h->reg_got_refcount > 0)
2744     {
2745       /* There's a GOT entry for this symbol.  Just adjust the refcounts.
2746          Probably not necessary at this stage, but keeping them accurate
2747          helps avoiding surprises later.  */
2748       h->root.got.refcount += h->gotplt_refcount;
2749       h->reg_got_refcount += h->gotplt_refcount;
2750       h->gotplt_refcount = 0;
2751     }
2752   else
2753     {
2754       /* No GOT entry for this symbol.  We need to create one.  */
2755       bfd *dynobj = elf_hash_table (info)->dynobj;
2756       asection *sgot;
2757       asection *srelgot;
2758
2759       BFD_ASSERT (dynobj != NULL);
2760       sgot = bfd_get_section_by_name (dynobj, ".got");
2761       srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2762
2763       /* Put accurate refcounts there.  */
2764       h->root.got.refcount += h->gotplt_refcount;
2765       h->reg_got_refcount = h->gotplt_refcount;
2766
2767       h->gotplt_refcount = 0;
2768
2769       /* We always have a .got and a .rela.got section if there were
2770          GOTPLT relocs in input.  */
2771       BFD_ASSERT (sgot != NULL && srelgot != NULL);
2772
2773       /* Allocate space in the .got section.  */
2774       sgot->size += 4;
2775
2776       /* Allocate relocation space.  */
2777       srelgot->size += sizeof (Elf32_External_Rela);
2778     }
2779
2780   return TRUE;
2781 }
2782
2783 /* Try to fold PLT entries with GOT entries.  There are two cases when we
2784    want to do this:
2785
2786    - When all PLT references are GOTPLT references, and there are GOT
2787      references, and this is not the executable.  We don't have to
2788      generate a PLT at all.
2789
2790    - When there are both (ordinary) PLT references and GOT references,
2791      and this isn't the executable.
2792      We want to make the PLT reference use the ordinary GOT entry rather
2793      than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
2794      since the GOT entry will have to be resolved at startup anyway.
2795
2796    Though the latter case is handled when room for the PLT is allocated,
2797    not here.
2798
2799    By folding into the GOT, we may need a round-trip to a PLT in the
2800    executable for calls, a loss in performance.  Still, losing a
2801    reloc is a win in size and at least in start-up time.
2802
2803    Note that this function is called before symbols are forced local by
2804    version scripts.  The differing cases are handled by
2805    elf_cris_hide_symbol.  */
2806
2807 static bfd_boolean
2808 elf_cris_try_fold_plt_to_got (h, p)
2809      struct elf_cris_link_hash_entry *h;
2810      PTR p;
2811 {
2812   struct bfd_link_info *info = (struct bfd_link_info *) p;
2813
2814   /* If there are no GOT references for this symbol, we can't fold any
2815      other reference so there's nothing to do.  Likewise if there are no
2816      PLT references; GOTPLT references included.  */
2817   if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
2818     return TRUE;
2819
2820   /* GOTPLT relocs are supposed to be included into the PLT refcount.  */
2821   BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
2822
2823   if (h->gotplt_refcount == h->root.plt.refcount)
2824     {
2825       /* The only PLT references are GOTPLT references, and there are GOT
2826          references.  Convert PLT to GOT references.  */
2827       if (! elf_cris_adjust_gotplt_to_got (h, info))
2828         return FALSE;
2829
2830       /* Clear the PLT references, so no PLT will be created.  */
2831       h->root.plt.offset = (bfd_vma) -1;
2832     }
2833
2834   return TRUE;
2835 }
2836
2837 /* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2838    to use a GOT entry (and create one) rather than requiring a GOTPLT
2839    entry.  */
2840
2841 static void
2842 elf_cris_hide_symbol (info, h, force_local)
2843      struct bfd_link_info *info;
2844      struct elf_link_hash_entry *h;
2845      bfd_boolean force_local;
2846 {
2847   elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
2848
2849   _bfd_elf_link_hash_hide_symbol (info, h, force_local);
2850 }
2851
2852 /* Adjust a symbol defined by a dynamic object and referenced by a
2853    regular object.  The current definition is in some section of the
2854    dynamic object, but we're not including those sections.  We have to
2855    change the definition to something the rest of the link can
2856    understand.  */
2857
2858 static bfd_boolean
2859 elf_cris_adjust_dynamic_symbol (info, h)
2860      struct bfd_link_info *info;
2861      struct elf_link_hash_entry *h;
2862 {
2863   bfd *dynobj;
2864   asection *s;
2865   bfd_size_type plt_entry_size;
2866
2867   dynobj = elf_hash_table (info)->dynobj;
2868
2869   /* Make sure we know what is going on here.  */
2870   BFD_ASSERT (dynobj != NULL
2871               && (h->needs_plt
2872                   || h->u.weakdef != NULL
2873                   || (h->def_dynamic
2874                       && h->ref_regular
2875                       && !h->def_regular)));
2876
2877   plt_entry_size
2878     = (bfd_get_mach (dynobj) == bfd_mach_cris_v32
2879        ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
2880
2881   /* If this is a function, put it in the procedure linkage table.  We
2882      will fill in the contents of the procedure linkage table later,
2883      when we know the address of the .got section.  */
2884   if (h->type == STT_FUNC
2885       || h->needs_plt)
2886     {
2887       /* If we link a program (not a DSO), we'll get rid of unnecessary
2888          PLT entries; we point to the actual symbols -- even for pic
2889          relocs, because a program built with -fpic should have the same
2890          result as one built without -fpic, specifically considering weak
2891          symbols.
2892          FIXME: m68k and i386 differ here, for unclear reasons.  */
2893       if (! info->shared
2894           && !h->def_dynamic)
2895         {
2896           /* This case can occur if we saw a PLT reloc in an input file,
2897              but the symbol was not defined by a dynamic object.  In such
2898              a case, we don't actually need to build a procedure linkage
2899              table, and we can just do an absolute or PC reloc instead, or
2900              change a .got.plt index to a .got index for GOTPLT relocs.  */
2901           BFD_ASSERT (h->needs_plt);
2902           h->needs_plt = 0;
2903           h->plt.offset = (bfd_vma) -1;
2904           return
2905             elf_cris_adjust_gotplt_to_got ((struct
2906                                             elf_cris_link_hash_entry *) h,
2907                                            info);
2908         }
2909
2910       /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
2911          where a pointer-equivalent symbol was unimportant (i.e. more
2912          like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
2913          of the PLT.  We can't for the executable, because the GOT
2914          entries will point to the PLT there (and be constant).  */
2915       if (info->shared
2916           && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*)
2917                                             h, info))
2918         return FALSE;
2919
2920       /* GC or folding may have rendered this entry unused.  */
2921       if (h->plt.refcount <= 0)
2922         {
2923           h->needs_plt = 0;
2924           h->plt.offset = (bfd_vma) -1;
2925           return TRUE;
2926         }
2927
2928       /* Make sure this symbol is output as a dynamic symbol.  */
2929       if (h->dynindx == -1)
2930         {
2931           if (! bfd_elf_link_record_dynamic_symbol (info, h))
2932             return FALSE;
2933         }
2934
2935       s = bfd_get_section_by_name (dynobj, ".plt");
2936       BFD_ASSERT (s != NULL);
2937
2938       /* If this is the first .plt entry, make room for the special
2939          first entry.  */
2940       if (s->size == 0)
2941         s->size += plt_entry_size;
2942
2943       /* If this symbol is not defined in a regular file, and we are
2944          not generating a shared library, then set the symbol to this
2945          location in the .plt.  */
2946       if (!info->shared
2947           && !h->def_regular)
2948         {
2949           h->root.u.def.section = s;
2950           h->root.u.def.value = s->size;
2951         }
2952
2953       /* If there's already a GOT entry, use that, not a .got.plt.  A
2954          GOT field still has a reference count when we get here; it's
2955          not yet changed to an offset.  We can't do this for an
2956          executable, because then the reloc associated with the PLT
2957          would get a non-PLT reloc pointing to the PLT.  FIXME: Move
2958          this to elf_cris_try_fold_plt_to_got.  */
2959       if (info->shared && h->got.refcount > 0)
2960         {
2961           h->got.refcount += h->plt.refcount;
2962
2963           /* Mark the PLT offset to use the GOT entry by setting the low
2964              bit in the plt offset; it is always a multiple of
2965              plt_entry_size (which is at least a multiple of 2).  */
2966           BFD_ASSERT ((s->size % plt_entry_size) == 0);
2967
2968           /* Change the PLT refcount to an offset.  */
2969           h->plt.offset = s->size;
2970
2971           /* By not setting gotplt_offset (i.e. it remains at 0), we signal
2972              that the got entry should be used instead.  */
2973           BFD_ASSERT (((struct elf_cris_link_hash_entry *)
2974                        h)->gotplt_offset == 0);
2975
2976           /* Make room for this entry.  */
2977           s->size += plt_entry_size;
2978
2979           return TRUE;
2980         }
2981
2982       /* No GOT reference for this symbol; prepare for an ordinary PLT.  */
2983       h->plt.offset = s->size;
2984
2985       /* Make room for this entry.  */
2986       s->size += plt_entry_size;
2987
2988       /* We also need to make an entry in the .got.plt section, which
2989          will be placed in the .got section by the linker script.  */
2990       ((struct elf_cris_link_hash_entry *) h)->gotplt_offset
2991         = elf_cris_hash_table (info)->next_gotplt_entry;
2992       elf_cris_hash_table (info)->next_gotplt_entry += 4;
2993
2994       s = bfd_get_section_by_name (dynobj, ".got.plt");
2995       BFD_ASSERT (s != NULL);
2996       s->size += 4;
2997
2998       /* We also need to make an entry in the .rela.plt section.  */
2999
3000       s = bfd_get_section_by_name (dynobj, ".rela.plt");
3001       BFD_ASSERT (s != NULL);
3002       s->size += sizeof (Elf32_External_Rela);
3003
3004       return TRUE;
3005     }
3006
3007   /* Reinitialize the plt offset now that it is not used as a reference
3008      count any more.  */
3009   h->plt.offset = (bfd_vma) -1;
3010
3011   /* If this is a weak symbol, and there is a real definition, the
3012      processor independent code will have arranged for us to see the
3013      real definition first, and we can just use the same value.  */
3014   if (h->u.weakdef != NULL)
3015     {
3016       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3017                   || h->u.weakdef->root.type == bfd_link_hash_defweak);
3018       h->root.u.def.section = h->u.weakdef->root.u.def.section;
3019       h->root.u.def.value = h->u.weakdef->root.u.def.value;
3020       return TRUE;
3021     }
3022
3023   /* This is a reference to a symbol defined by a dynamic object which
3024      is not a function.  */
3025
3026   /* If we are creating a shared library, we must presume that the
3027      only references to the symbol are via the global offset table.
3028      For such cases we need not do anything here; the relocations will
3029      be handled correctly by relocate_section.  */
3030   if (info->shared)
3031     return TRUE;
3032
3033   /* If there are no references to this symbol that do not use the
3034      GOT, we don't need to generate a copy reloc.  */
3035   if (!h->non_got_ref)
3036     return TRUE;
3037
3038   if (h->size == 0)
3039     {
3040       (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
3041                              h->root.root.string);
3042       return TRUE;
3043     }
3044
3045   /* We must allocate the symbol in our .dynbss section, which will
3046      become part of the .bss section of the executable.  There will be
3047      an entry for this symbol in the .dynsym section.  The dynamic
3048      object will contain position independent code, so all references
3049      from the dynamic object to this symbol will go through the global
3050      offset table.  The dynamic linker will use the .dynsym entry to
3051      determine the address it must put in the global offset table, so
3052      both the dynamic object and the regular object will refer to the
3053      same memory location for the variable.  */
3054
3055   s = bfd_get_section_by_name (dynobj, ".dynbss");
3056   BFD_ASSERT (s != NULL);
3057
3058   /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
3059      copy the initial value out of the dynamic object and into the
3060      runtime process image.  We need to remember the offset into the
3061      .rela.bss section we are going to use.  */
3062   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3063     {
3064       asection *srel;
3065
3066       srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3067       BFD_ASSERT (srel != NULL);
3068       srel->size += sizeof (Elf32_External_Rela);
3069       h->needs_copy = 1;
3070     }
3071
3072   return _bfd_elf_adjust_dynamic_copy (h, s);
3073 }
3074
3075 /* Adjust our "subclass" elements for an indirect symbol.  */
3076
3077 static void
3078 elf_cris_copy_indirect_symbol (struct bfd_link_info *info,
3079                                struct elf_link_hash_entry *dir,
3080                                struct elf_link_hash_entry *ind)
3081 {
3082   struct elf_cris_link_hash_entry *edir, *eind;
3083
3084   edir = (struct elf_cris_link_hash_entry *) dir;
3085   eind = (struct elf_cris_link_hash_entry *) ind;
3086
3087   /* Only indirect symbols are replaced; we're not interested in
3088      updating any of EIND's fields for other symbols.  */
3089   if (eind->root.root.type != bfd_link_hash_indirect)
3090     {
3091       /* Still, we need to copy flags for e.g. weak definitions.  */
3092       _bfd_elf_link_hash_copy_indirect (info, dir, ind);
3093       return;
3094     }
3095
3096   BFD_ASSERT (edir->pcrel_relocs_copied == NULL);
3097   BFD_ASSERT (edir->gotplt_offset == 0 || eind->gotplt_offset == 0);
3098
3099 #define XMOVOPZ(F, OP, Z) edir->F OP eind->F; eind->F = Z
3100 #define XMOVE(F) XMOVOPZ (F, +=, 0)
3101   XMOVOPZ (pcrel_relocs_copied, =, NULL);
3102   XMOVE (gotplt_refcount);
3103   XMOVE (gotplt_offset);
3104   XMOVE (reg_got_refcount);
3105   XMOVE (tprel_refcount);
3106   XMOVE (dtp_refcount);
3107 #undef XMOVE
3108 #undef XMOVOPZ
3109
3110   _bfd_elf_link_hash_copy_indirect (info, dir, ind);
3111 }
3112
3113 /* Look through the relocs for a section during the first phase.  */
3114
3115 static bfd_boolean
3116 cris_elf_check_relocs (abfd, info, sec, relocs)
3117      bfd *abfd;
3118      struct bfd_link_info *info;
3119      asection *sec;
3120      const Elf_Internal_Rela *relocs;
3121 {
3122   bfd *dynobj;
3123   Elf_Internal_Shdr *symtab_hdr;
3124   struct elf_link_hash_entry **sym_hashes;
3125   bfd_signed_vma *local_got_refcounts;
3126   const Elf_Internal_Rela *rel;
3127   const Elf_Internal_Rela *rel_end;
3128   asection *sgot;
3129   asection *srelgot;
3130   asection *sreloc;
3131
3132   if (info->relocatable)
3133     return TRUE;
3134
3135   dynobj = elf_hash_table (info)->dynobj;
3136   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3137   sym_hashes = elf_sym_hashes (abfd);
3138   local_got_refcounts = elf_local_got_refcounts (abfd);
3139
3140   sgot = NULL;
3141   srelgot = NULL;
3142   sreloc = NULL;
3143
3144   rel_end = relocs + sec->reloc_count;
3145   for (rel = relocs; rel < rel_end; rel++)
3146     {
3147       struct elf_link_hash_entry *h;
3148       unsigned long r_symndx;
3149       enum elf_cris_reloc_type r_type;
3150       bfd_signed_vma got_element_size = 4;
3151       unsigned long r_symndx_lgot = INT_MAX;
3152
3153       r_symndx = ELF32_R_SYM (rel->r_info);
3154       if (r_symndx < symtab_hdr->sh_info)
3155         {
3156           h = NULL;
3157           r_symndx_lgot = LGOT_REG_NDX (r_symndx);
3158         }
3159       else
3160         {
3161           h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3162           while (h->root.type == bfd_link_hash_indirect
3163                  || h->root.type == bfd_link_hash_warning)
3164             h = (struct elf_link_hash_entry *) h->root.u.i.link;
3165         }
3166
3167       r_type = ELF32_R_TYPE (rel->r_info);
3168
3169       /* Some relocs require linker-created sections; we need to hang them
3170          on the first input bfd we found that contained dynamic relocs.  */
3171       switch (r_type)
3172         {
3173         case R_CRIS_32_DTPREL:
3174           if ((sec->flags & SEC_ALLOC) == 0)
3175             /* This'd be a .dtpreld entry in e.g. debug info.  We have
3176                several different switch statements below, but none of
3177                that is needed; we need no preparations for resolving
3178                R_CRIS_32_DTPREL into a non-allocated section (debug
3179                info), so let's just move on to the next
3180                relocation.  */
3181             continue;
3182           /* Fall through.  */
3183         case R_CRIS_16_DTPREL:
3184           /* The first .got.plt entry is right after the R_CRIS_DTPMOD
3185              entry at index 3. */
3186           if (elf_cris_hash_table (info)->dtpmod_refcount == 0)
3187             elf_cris_hash_table (info)->next_gotplt_entry += 8;
3188           elf_cris_hash_table (info)->dtpmod_refcount++;
3189           /* Fall through.  */
3190
3191         case R_CRIS_32_IE:
3192         case R_CRIS_32_GD:
3193         case R_CRIS_16_GOT_GD:
3194         case R_CRIS_32_GOT_GD:
3195         case R_CRIS_32_GOT_TPREL:
3196         case R_CRIS_16_GOT_TPREL:
3197         case R_CRIS_16_GOT:
3198         case R_CRIS_32_GOT:
3199         case R_CRIS_32_GOTREL:
3200         case R_CRIS_32_PLT_GOTREL:
3201         case R_CRIS_32_PLT_PCREL:
3202         case R_CRIS_16_GOTPLT:
3203         case R_CRIS_32_GOTPLT:
3204           if (dynobj == NULL)
3205             {
3206               elf_hash_table (info)->dynobj = dynobj = abfd;
3207
3208               /* We could handle this if we can get a handle on the
3209                  output bfd in elf_cris_adjust_dynamic_symbol.  Failing
3210                  that, we must insist on dynobj being a specific mach.  */
3211               if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32)
3212                 {
3213                   (*_bfd_error_handler)
3214                     (_("%B, section %A:\n  v10/v32 compatible object %s"
3215                        " must not contain a PIC relocation"),
3216                      abfd, sec);
3217                   return FALSE;
3218                 }
3219
3220               /* Create the .got section, so we can assume it's always
3221                  present whenever there's a dynobj.  */
3222               if (!_bfd_elf_create_got_section (dynobj, info))
3223                 return FALSE;
3224             }
3225
3226           if (sgot == NULL)
3227             sgot = bfd_get_section_by_name (dynobj, ".got");
3228
3229           if (local_got_refcounts == NULL)
3230             {
3231               bfd_size_type amt;
3232
3233               /* We use index local_got_refcounts[-1] to count all
3234                  GOT-relative relocations that do not have explicit
3235                  GOT entries.  */
3236               amt = LGOT_ALLOC_NELTS_FOR (symtab_hdr->sh_info) + 1;
3237               amt *= sizeof (bfd_signed_vma);
3238               local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
3239               if (local_got_refcounts == NULL)
3240                 return FALSE;
3241
3242               local_got_refcounts++;
3243               elf_local_got_refcounts (abfd) = local_got_refcounts;
3244             }
3245           break;
3246
3247         default:
3248           break;
3249         }
3250
3251       /* Some relocs require a global offset table (but perhaps not a
3252          specific GOT entry).  */
3253       switch (r_type)
3254         {
3255         case R_CRIS_16_DTPREL:
3256         case R_CRIS_32_DTPREL:
3257           /* Not requesting .got.rela for an executable: the contents
3258              of the first entry is constant there.  For a shared
3259              library, we need .got.rela for the R_CRIS_DTPMOD
3260              relocation at index 3.  */
3261           if (!info->shared)
3262             break;
3263           /* Fall through.  */
3264
3265         case R_CRIS_32_IE:
3266         case R_CRIS_32_GD:
3267         case R_CRIS_16_GOT_GD:
3268         case R_CRIS_32_GOT_GD:
3269         case R_CRIS_32_GOT_TPREL:
3270         case R_CRIS_16_GOT_TPREL:
3271           /* Fall through.  */
3272
3273           /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
3274              entry only for local symbols.  Unfortunately, we don't know
3275              until later on if there's a version script that forces the
3276              symbol local.  We must have the .rela.got section in place
3277              before we know if the symbol looks global now, so we need
3278              to treat the reloc just like for R_CRIS_16_GOT and
3279              R_CRIS_32_GOT.  */
3280         case R_CRIS_16_GOTPLT:
3281         case R_CRIS_32_GOTPLT:
3282         case R_CRIS_16_GOT:
3283         case R_CRIS_32_GOT:
3284           if (srelgot == NULL
3285               && (h != NULL || info->shared))
3286             {
3287               srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
3288               if (srelgot == NULL)
3289                 {
3290                   srelgot = bfd_make_section_with_flags (dynobj,
3291                                                          ".rela.got",
3292                                                          (SEC_ALLOC
3293                                                           | SEC_LOAD
3294                                                           | SEC_HAS_CONTENTS
3295                                                           | SEC_IN_MEMORY
3296                                                           | SEC_LINKER_CREATED
3297                                                           | SEC_READONLY));
3298                   if (srelgot == NULL
3299                       || !bfd_set_section_alignment (dynobj, srelgot, 2))
3300                     return FALSE;
3301                 }
3302             }
3303           break;
3304
3305         default:
3306           break;
3307         }
3308
3309       /* Warn and error for invalid input.  */
3310       switch (r_type)
3311         {
3312         case R_CRIS_32_IE:
3313         case R_CRIS_32_TPREL:
3314         case R_CRIS_16_TPREL:
3315         case R_CRIS_32_GD:
3316           if (info->shared)
3317             {
3318               (*_bfd_error_handler)
3319                 (_("%B, section %A:\n  relocation %s not valid"
3320                    " in a shared object;"
3321                    " typically an option mixup, recompile with -fPIC"),
3322                  abfd,
3323                  sec,
3324                  cris_elf_howto_table[r_type].name);
3325               /* Don't return FALSE here; we want messages for all of
3326                  these and the error behavior is ungraceful
3327                  anyway.  */
3328             }
3329         default:
3330           break;
3331         }
3332
3333       switch (r_type)
3334         {
3335         case R_CRIS_32_GD:
3336         case R_CRIS_16_GOT_GD:
3337         case R_CRIS_32_GOT_GD:
3338           /* These are requests for tls_index entries, run-time R_CRIS_DTP.  */
3339           got_element_size = 8;
3340           r_symndx_lgot = LGOT_DTP_NDX (r_symndx);
3341           break;
3342
3343         case R_CRIS_16_DTPREL:
3344         case R_CRIS_32_DTPREL:
3345           /* These two just request for the constant-index
3346              module-local tls_index-sized GOT entry, which we add
3347              elsewhere.  */
3348           break;
3349
3350         case R_CRIS_32_IE:
3351         case R_CRIS_32_GOT_TPREL:
3352         case R_CRIS_16_GOT_TPREL:
3353           r_symndx_lgot = LGOT_TPREL_NDX (r_symndx);
3354
3355           /* Those relocs also require that a DSO is of type
3356              Initial Exec.  Like other targets, we don't reset this
3357              flag even if the relocs are GC:ed away.  */
3358           if (info->shared)
3359             info->flags |= DF_STATIC_TLS;
3360           break;
3361
3362           /* Let's list the other assembler-generated TLS-relocs too,
3363              just to show that they're not forgotten. */
3364         case R_CRIS_16_TPREL:
3365         case R_CRIS_32_TPREL:
3366         default:
3367           break;
3368         }
3369
3370       switch (r_type)
3371         {
3372         case R_CRIS_16_GOTPLT:
3373         case R_CRIS_32_GOTPLT:
3374           /* Mark that we need a GOT entry if the PLT entry (and its GOT
3375              entry) is eliminated.  We can only do this for a non-local
3376              symbol.  */
3377           if (h != NULL)
3378             {
3379               elf_cris_hash_entry (h)->gotplt_refcount++;
3380               goto handle_gotplt_reloc;
3381             }
3382           /* If h is NULL then this is a local symbol, and we must make a
3383              GOT entry for it, so handle it like a GOT reloc.  */
3384           /* Fall through.  */
3385
3386         case R_CRIS_32_IE:
3387         case R_CRIS_32_GD:
3388         case R_CRIS_16_GOT_GD:
3389         case R_CRIS_32_GOT_GD:
3390         case R_CRIS_32_GOT_TPREL:
3391         case R_CRIS_16_GOT_TPREL:
3392         case R_CRIS_16_GOT:
3393         case R_CRIS_32_GOT:
3394           /* This symbol requires a global offset table entry.  */
3395           if (h != NULL)
3396             {
3397               if (h->got.refcount == 0)
3398                 {
3399                   /* Make sure this symbol is output as a dynamic symbol.  */
3400                   if (h->dynindx == -1)
3401                     {
3402                       if (!bfd_elf_link_record_dynamic_symbol (info, h))
3403                         return FALSE;
3404                     }
3405                 }
3406
3407               /* Update the sum of reloc counts for this symbol.  */
3408               h->got.refcount++;
3409
3410               switch (r_type)
3411                 {
3412                 case R_CRIS_16_GOT:
3413                 case R_CRIS_32_GOT:
3414                   if (elf_cris_hash_entry (h)->reg_got_refcount == 0)
3415                     {
3416                       /* Allocate space in the .got section.  */
3417                       sgot->size += got_element_size;
3418                       /* Allocate relocation space.  */
3419                       srelgot->size += sizeof (Elf32_External_Rela);
3420                     }
3421                   elf_cris_hash_entry (h)->reg_got_refcount++;
3422                   break;
3423
3424                 case R_CRIS_32_GD:
3425                 case R_CRIS_16_GOT_GD:
3426                 case R_CRIS_32_GOT_GD:
3427                   if (elf_cris_hash_entry (h)->dtp_refcount == 0)
3428                     {
3429                       /* Allocate space in the .got section.  */
3430                       sgot->size += got_element_size;
3431                       /* Allocate relocation space.  */
3432                       srelgot->size += sizeof (Elf32_External_Rela);
3433                     }
3434                   elf_cris_hash_entry (h)->dtp_refcount++;
3435                   break;
3436
3437                 case R_CRIS_32_IE:
3438                 case R_CRIS_32_GOT_TPREL:
3439                 case R_CRIS_16_GOT_TPREL:
3440                   if (elf_cris_hash_entry (h)->tprel_refcount == 0)
3441                     {
3442                       /* Allocate space in the .got section.  */
3443                       sgot->size += got_element_size;
3444                       /* Allocate relocation space.  */
3445                       srelgot->size += sizeof (Elf32_External_Rela);
3446                     }
3447                   elf_cris_hash_entry (h)->tprel_refcount++;
3448                   break;
3449
3450                 default:
3451                   BFD_FAIL ();
3452                   break;
3453                 }
3454             }
3455           else
3456             {
3457               /* This is a global offset table entry for a local symbol.  */
3458               if (local_got_refcounts[r_symndx_lgot] == 0)
3459                 {
3460                   sgot->size += got_element_size;
3461                   if (info->shared)
3462                     {
3463                       /* If we are generating a shared object, we need
3464                          to output a R_CRIS_RELATIVE reloc so that the
3465                          dynamic linker can adjust this GOT entry.
3466                          Similarly for non-regular got entries.  */
3467                       srelgot->size += sizeof (Elf32_External_Rela);
3468                     }
3469                 }
3470               /* Update the reloc-specific count.  */
3471               local_got_refcounts[r_symndx_lgot]++;
3472
3473               /* This one is the sum of all the others.  */
3474               local_got_refcounts[r_symndx]++;
3475             }
3476           break;
3477
3478         case R_CRIS_16_DTPREL:
3479         case R_CRIS_32_DTPREL:
3480         case R_CRIS_32_GOTREL:
3481           /* This reference requires a global offset table.
3482              FIXME: The actual refcount isn't used currently; the .got
3483              section can't be removed if there were any references in the
3484              input.  */
3485           local_got_refcounts[-1]++;
3486           break;
3487
3488         handle_gotplt_reloc:
3489
3490         case R_CRIS_32_PLT_GOTREL:
3491           /* This reference requires a global offset table.  */
3492           local_got_refcounts[-1]++;
3493           /* Fall through.  */
3494
3495         case R_CRIS_32_PLT_PCREL:
3496           /* This symbol requires a procedure linkage table entry.  We
3497              actually build the entry in adjust_dynamic_symbol,
3498              because this might be a case of linking PIC code which is
3499              never referenced by a dynamic object, in which case we
3500              don't need to generate a procedure linkage table entry
3501              after all.  */
3502
3503           /* Beware: if we'd check for visibility of the symbol here
3504              (and not marking the need for a PLT when non-visible), we'd
3505              get into trouble with keeping handling consistent with
3506              regards to relocs found before definition and GOTPLT
3507              handling.  Eliminable PLT entries will be dealt with later
3508              anyway.  */
3509           if (h == NULL)
3510             continue;
3511
3512           h->needs_plt = 1;
3513           h->plt.refcount++;
3514           break;
3515
3516         case R_CRIS_8:
3517         case R_CRIS_16:
3518         case R_CRIS_32:
3519           /* Let's help debug shared library creation.  Any of these
3520              relocs *can* be used in shared libs, but pages containing
3521              them cannot be shared, so they're not appropriate for
3522              common use.  Don't warn for sections we don't care about,
3523              such as debug sections or non-constant sections.  We
3524              can't help tables of (global) function pointers, for
3525              example, though they must be emitted in a (writable) data
3526              section to avoid having impure text sections.  */
3527           if (info->shared
3528               && (sec->flags & SEC_ALLOC) != 0
3529               && (sec->flags & SEC_READONLY) != 0)
3530             {
3531               /* FIXME: How do we make this optionally a warning only?  */
3532               (*_bfd_error_handler)
3533                 (_("%B, section %A:\n  relocation %s should not"
3534                    " be used in a shared object; recompile with -fPIC"),
3535                  abfd,
3536                  sec,
3537                  cris_elf_howto_table[r_type].name);
3538             }
3539           if (h != NULL)
3540             {
3541               h->non_got_ref = 1;
3542
3543               /* Make sure a plt entry is created for this symbol if it
3544                  turns out to be a function defined by a dynamic object.  */
3545               if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
3546                 h->plt.refcount++;
3547             }
3548
3549           /* If we are creating a shared library and this is not a local
3550              symbol, we need to copy the reloc into the shared library.
3551              However when linking with -Bsymbolic and this is a global
3552              symbol which is defined in an object we are including in the
3553              link (i.e., DEF_REGULAR is set), then we can resolve the
3554              reloc directly.  At this point we have not seen all the input
3555              files, so it is possible that DEF_REGULAR is not set now but
3556              will be set later (it is never cleared).  In case of a weak
3557              definition, DEF_REGULAR may be cleared later by a strong
3558              definition in a shared library.  We account for that
3559              possibility below by storing information in the relocs_copied
3560              field of the hash table entry.  A similar situation occurs
3561              when creating shared libraries and symbol visibility changes
3562              render the symbol local.  */
3563
3564           /* No need to do anything if we're not creating a shared object.  */
3565           if (! info->shared)
3566             break;
3567
3568           /* We don't need to handle relocs into sections not going into
3569              the "real" output.  */
3570           if ((sec->flags & SEC_ALLOC) == 0)
3571             break;
3572
3573           /* We may need to create a reloc section in the dynobj and made room
3574              for this reloc.  */
3575           if (sreloc == NULL)
3576             {
3577               sreloc = _bfd_elf_make_dynamic_reloc_section
3578                 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3579
3580               if (sreloc == NULL)
3581                 return FALSE;
3582             }
3583
3584           if (sec->flags & SEC_READONLY)
3585             info->flags |= DF_TEXTREL;
3586
3587           sreloc->size += sizeof (Elf32_External_Rela);
3588           break;
3589
3590         case R_CRIS_8_PCREL:
3591         case R_CRIS_16_PCREL:
3592         case R_CRIS_32_PCREL:
3593           if (h != NULL)
3594             {
3595               h->non_got_ref = 1;
3596
3597               /* Make sure a plt entry is created for this symbol if it
3598                  turns out to be a function defined by a dynamic object.  */
3599               if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
3600                 h->plt.refcount++;
3601             }
3602
3603           /* If we are creating a shared library and this is not a local
3604              symbol, we need to copy the reloc into the shared library.
3605              However when linking with -Bsymbolic and this is a global
3606              symbol which is defined in an object we are including in the
3607              link (i.e., DEF_REGULAR is set), then we can resolve the
3608              reloc directly.  At this point we have not seen all the input
3609              files, so it is possible that DEF_REGULAR is not set now but
3610              will be set later (it is never cleared).  In case of a weak
3611              definition, DEF_REGULAR may be cleared later by a strong
3612              definition in a shared library.  We account for that
3613              possibility below by storing information in the relocs_copied
3614              field of the hash table entry.  A similar situation occurs
3615              when creating shared libraries and symbol visibility changes
3616              render the symbol local.  */
3617
3618           /* No need to do anything if we're not creating a shared object.  */
3619           if (! info->shared)
3620             break;
3621
3622           /* We don't need to handle relocs into sections not going into
3623              the "real" output.  */
3624           if ((sec->flags & SEC_ALLOC) == 0)
3625             break;
3626
3627           /* If the symbol is local, then we know already we can
3628              eliminate the reloc.  */
3629           if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3630             break;
3631
3632           /* If this is with -Bsymbolic and the symbol isn't weak, and
3633              is defined by an ordinary object (the ones we include in
3634              this shared library) then we can also eliminate the
3635              reloc.  See comment above for more eliminable cases which
3636              we can't identify at this time.  */
3637           if (info->symbolic
3638               && h->root.type != bfd_link_hash_defweak
3639               && h->def_regular)
3640             break;
3641
3642           /* We may need to create a reloc section in the dynobj and made room
3643              for this reloc.  */
3644           if (sreloc == NULL)
3645             {
3646               sreloc = _bfd_elf_make_dynamic_reloc_section
3647                 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3648
3649               if (sreloc == NULL)
3650                 return FALSE;
3651             }
3652
3653           sreloc->size += sizeof (Elf32_External_Rela);
3654
3655           /* We count the number of PC relative relocations we have
3656              entered for this symbol, so that we can discard them
3657              again if the symbol is later defined by a regular object.
3658              We know that h is really a pointer to an
3659              elf_cris_link_hash_entry.  */
3660           {
3661             struct elf_cris_link_hash_entry *eh;
3662             struct elf_cris_pcrel_relocs_copied *p;
3663
3664             eh = elf_cris_hash_entry (h);
3665
3666             for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
3667               if (p->section == sreloc)
3668                 break;
3669
3670             if (p == NULL)
3671               {
3672                 p = ((struct elf_cris_pcrel_relocs_copied *)
3673                      bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
3674                 if (p == NULL)
3675                   return FALSE;
3676                 p->next = eh->pcrel_relocs_copied;
3677                 eh->pcrel_relocs_copied = p;
3678                 p->section = sreloc;
3679                 p->count = 0;
3680                 p->r_type = r_type;
3681               }
3682
3683             ++p->count;
3684           }
3685           break;
3686
3687         /* This relocation describes the C++ object vtable hierarchy.
3688            Reconstruct it for later use during GC.  */
3689         case R_CRIS_GNU_VTINHERIT:
3690           if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3691             return FALSE;
3692           break;
3693
3694         /* This relocation describes which C++ vtable entries are actually
3695            used.  Record for later use during GC.  */
3696         case R_CRIS_GNU_VTENTRY:
3697           BFD_ASSERT (h != NULL);
3698           if (h != NULL
3699               && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3700             return FALSE;
3701           break;
3702
3703         case R_CRIS_16_TPREL:
3704         case R_CRIS_32_TPREL:
3705           /* Already warned above, when necessary.  */
3706           break;
3707
3708         default:
3709           /* Other relocs do not appear here.  */
3710           bfd_set_error (bfd_error_bad_value);
3711           return FALSE;
3712         }
3713     }
3714
3715   return TRUE;
3716 }
3717
3718 /* Set the sizes of the dynamic sections.  */
3719
3720 static bfd_boolean
3721 elf_cris_size_dynamic_sections (output_bfd, info)
3722      bfd *output_bfd ATTRIBUTE_UNUSED;
3723      struct bfd_link_info *info;
3724 {
3725   bfd *dynobj;
3726   asection *s;
3727   bfd_boolean plt;
3728   bfd_boolean relocs;
3729
3730   dynobj = elf_hash_table (info)->dynobj;
3731   BFD_ASSERT (dynobj != NULL);
3732
3733   if (elf_hash_table (info)->dynamic_sections_created)
3734     {
3735       /* Set the contents of the .interp section to the interpreter.  */
3736       if (info->executable)
3737         {
3738           s = bfd_get_section_by_name (dynobj, ".interp");
3739           BFD_ASSERT (s != NULL);
3740           s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3741           s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3742         }
3743     }
3744   else
3745     {
3746       /* Adjust all expected GOTPLT uses to use a GOT entry instead.  */
3747       elf_cris_link_hash_traverse (elf_cris_hash_table (info),
3748                                    elf_cris_adjust_gotplt_to_got,
3749                                    (PTR) info);
3750
3751       /* We may have created entries in the .rela.got section.
3752          However, if we are not creating the dynamic sections, we will
3753          not actually use these entries.  Reset the size of .rela.got,
3754          which will cause it to get stripped from the output file
3755          below.  */
3756       s = bfd_get_section_by_name (dynobj, ".rela.got");
3757       if (s != NULL)
3758         s->size = 0;
3759     }
3760
3761   /* If this is a -Bsymbolic shared link, then we need to discard all PC
3762      relative relocs against symbols defined in a regular object.  We
3763      allocated space for them in the check_relocs routine, but we will not
3764      fill them in in the relocate_section routine.  We also discard space
3765      for relocs that have become for local symbols due to symbol
3766      visibility changes.  For programs, we discard space for relocs for
3767      symbols not referenced by any dynamic object.  */
3768   if (info->shared)
3769     elf_cris_link_hash_traverse (elf_cris_hash_table (info),
3770                                  elf_cris_discard_excess_dso_dynamics,
3771                                  (PTR) info);
3772   else
3773     elf_cris_link_hash_traverse (elf_cris_hash_table (info),
3774                                  elf_cris_discard_excess_program_dynamics,
3775                                  (PTR) info);
3776
3777   /* The check_relocs and adjust_dynamic_symbol entry points have
3778      determined the sizes of the various dynamic sections.  Allocate
3779      memory for them.  */
3780   plt = FALSE;
3781   relocs = FALSE;
3782   for (s = dynobj->sections; s != NULL; s = s->next)
3783     {
3784       const char *name;
3785
3786       if ((s->flags & SEC_LINKER_CREATED) == 0)
3787         continue;
3788
3789       /* It's OK to base decisions on the section name, because none
3790          of the dynobj section names depend upon the input files.  */
3791       name = bfd_get_section_name (dynobj, s);
3792
3793       if (strcmp (name, ".plt") == 0)
3794         {
3795           /* Remember whether there is a PLT.  */
3796           plt = s->size != 0;
3797         }
3798       else if (strcmp (name, ".got.plt") == 0)
3799         {
3800           /* The .got.plt contains the .got header as well as the
3801              actual .got.plt contents.  The .got header may contain a
3802              R_CRIS_DTPMOD entry at index 3.  */
3803           s->size += elf_cris_hash_table (info)->dtpmod_refcount != 0
3804             ? 8 : 0;
3805         }
3806       else if (CONST_STRNEQ (name, ".rela"))
3807         {
3808           if (strcmp (name, ".rela.got") == 0
3809               && elf_cris_hash_table (info)->dtpmod_refcount != 0
3810               && info->shared)
3811             s->size += sizeof (Elf32_External_Rela);
3812
3813           if (s->size != 0)
3814             {
3815               /* Remember whether there are any reloc sections other
3816                  than .rela.plt.  */
3817               if (strcmp (name, ".rela.plt") != 0)
3818                   relocs = TRUE;
3819
3820               /* We use the reloc_count field as a counter if we need
3821                  to copy relocs into the output file.  */
3822               s->reloc_count = 0;
3823             }
3824         }
3825       else if (! CONST_STRNEQ (name, ".got")
3826                && strcmp (name, ".dynbss") != 0)
3827         {
3828           /* It's not one of our sections, so don't allocate space.  */
3829           continue;
3830         }
3831
3832       if (s->size == 0)
3833         {
3834           /* If we don't need this section, strip it from the
3835              output file.  This is mostly to handle .rela.bss and
3836              .rela.plt.  We must create both sections in
3837              create_dynamic_sections, because they must be created
3838              before the linker maps input sections to output
3839              sections.  The linker does that before
3840              adjust_dynamic_symbol is called, and it is that
3841              function which decides whether anything needs to go
3842              into these sections.  */
3843           s->flags |= SEC_EXCLUDE;
3844           continue;
3845         }
3846
3847       if ((s->flags & SEC_HAS_CONTENTS) == 0)
3848         continue;
3849
3850       /* Allocate memory for the section contents. We use bfd_zalloc here
3851          in case unused entries are not reclaimed before the section's
3852          contents are written out.  This should not happen, but this way
3853          if it does, we will not write out garbage.  For reloc sections,
3854          this will make entries have the type R_CRIS_NONE.  */
3855       s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3856       if (s->contents == NULL)
3857         return FALSE;
3858     }
3859
3860   if (elf_hash_table (info)->dynamic_sections_created)
3861     {
3862       /* Add some entries to the .dynamic section.  We fill in the
3863          values later, in elf_cris_finish_dynamic_sections, but we
3864          must add the entries now so that we get the correct size for
3865          the .dynamic section.  The DT_DEBUG entry is filled in by the
3866          dynamic linker and used by the debugger.  */
3867 #define add_dynamic_entry(TAG, VAL) \
3868   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3869
3870       if (!info->shared)
3871         {
3872           if (!add_dynamic_entry (DT_DEBUG, 0))
3873             return FALSE;
3874         }
3875
3876       if (plt)
3877         {
3878           if (!add_dynamic_entry (DT_PLTGOT, 0)
3879               || !add_dynamic_entry (DT_PLTRELSZ, 0)
3880               || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3881               || !add_dynamic_entry (DT_JMPREL, 0))
3882             return FALSE;
3883         }
3884
3885       if (relocs)
3886         {
3887           if (!add_dynamic_entry (DT_RELA, 0)
3888               || !add_dynamic_entry (DT_RELASZ, 0)
3889               || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3890             return FALSE;
3891         }
3892
3893       if ((info->flags & DF_TEXTREL) != 0)
3894         {
3895           if (!add_dynamic_entry (DT_TEXTREL, 0))
3896             return FALSE;
3897           info->flags |= DF_TEXTREL;
3898         }
3899     }
3900 #undef add_dynamic_entry
3901
3902   return TRUE;
3903 }
3904
3905 /* This function is called via elf_cris_link_hash_traverse if we are
3906    creating a shared object.  In the -Bsymbolic case, it discards the
3907    space allocated to copy PC relative relocs against symbols which
3908    are defined in regular objects.  For the normal non-symbolic case,
3909    we also discard space for relocs that have become local due to
3910    symbol visibility changes.  We allocated space for them in the
3911    check_relocs routine, but we won't fill them in in the
3912    relocate_section routine.  */
3913
3914 static bfd_boolean
3915 elf_cris_discard_excess_dso_dynamics (h, inf)
3916      struct elf_cris_link_hash_entry *h;
3917      PTR inf;
3918 {
3919   struct elf_cris_pcrel_relocs_copied *s;
3920   struct bfd_link_info *info = (struct bfd_link_info *) inf;
3921
3922   if (h->root.root.type == bfd_link_hash_warning)
3923     h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
3924
3925   /* If a symbol has been forced local or we have found a regular
3926      definition for the symbolic link case, then we won't be needing
3927      any relocs.  */
3928   if (h->root.def_regular
3929       && (h->root.forced_local
3930           || info->symbolic))
3931     {
3932       for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3933         s->section->size -= s->count * sizeof (Elf32_External_Rela);
3934
3935       return TRUE;
3936     }
3937
3938   /* If we have accounted for PC-relative relocs for read-only
3939      sections, now is the time to warn for them.  We can't do it in
3940      cris_elf_check_relocs, because we don't know the status of all
3941      symbols at that time (and it's common to force symbols local
3942      late).  */
3943
3944   for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3945     {
3946       BFD_ASSERT ((s->section->flags & SEC_READONLY) != 0);
3947
3948       /* FIXME: How do we make this optionally a warning only?  */
3949       (*_bfd_error_handler)
3950         (_("%B, section `%A', to symbol `%s':\n"
3951            "  relocation %s should not be used"
3952            " in a shared object; recompile with -fPIC"),
3953          s->section->owner,
3954          s->section,
3955          h->root.root.root.string,
3956          cris_elf_howto_table[s->r_type].name);
3957
3958       info->flags |= DF_TEXTREL;
3959     }
3960
3961   return TRUE;
3962 }
3963
3964 /* This function is called via elf_cris_link_hash_traverse if we are *not*
3965    creating a shared object.  We discard space for relocs for symbols put
3966    in the .got, but which we found we do not have to resolve at run-time.  */
3967
3968 static bfd_boolean
3969 elf_cris_discard_excess_program_dynamics (h, inf)
3970      struct elf_cris_link_hash_entry *h;
3971      PTR inf;
3972 {
3973   struct bfd_link_info *info = (struct bfd_link_info *) inf;
3974
3975   if (h->root.root.type == bfd_link_hash_warning)
3976     h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
3977
3978   /* If we're not creating a shared library and have a symbol which is
3979      referred to by .got references, but the symbol is defined locally,
3980      (or rather, not defined by a DSO) then lose the reloc for the .got
3981      (don't allocate room for it).  Likewise for relocs for something
3982      for which we create a PLT.  */
3983   if (!h->root.def_dynamic
3984       || h->root.plt.refcount > 0)
3985     {
3986       if (h->reg_got_refcount > 0
3987           /* The size of this section is only valid and in sync with the
3988              various reference counts if we do dynamic; don't decrement it
3989              otherwise.  */
3990           && elf_hash_table (info)->dynamic_sections_created)
3991         {
3992           bfd *dynobj = elf_hash_table (info)->dynobj;
3993           asection *srelgot;
3994
3995           BFD_ASSERT (dynobj != NULL);
3996
3997           srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
3998
3999           BFD_ASSERT (srelgot != NULL);
4000
4001           srelgot->size -= sizeof (Elf32_External_Rela);
4002         }
4003
4004       /* If the locally-defined symbol isn't used by a DSO, then we don't
4005          have to export it as a dynamic symbol.  This was already done for
4006          functions; doing this for all symbols would presumably not
4007          introduce new problems.  Of course we don't do this if we're
4008          exporting all dynamic symbols.  */
4009       if (! info->export_dynamic
4010           && h->root.dynindx != -1
4011           && !h->root.def_dynamic
4012           && !h->root.ref_dynamic)
4013         {
4014           h->root.dynindx = -1;
4015           _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4016                                   h->root.dynstr_index);
4017         }
4018     }
4019
4020   return TRUE;
4021 }
4022
4023 /* Reject a file depending on presence and expectation of prefixed
4024    underscores on symbols.  */
4025
4026 static bfd_boolean
4027 cris_elf_object_p (abfd)
4028      bfd *abfd;
4029 {
4030   if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags))
4031     return FALSE;
4032
4033   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
4034     return (bfd_get_symbol_leading_char (abfd) == '_');
4035   else
4036     return (bfd_get_symbol_leading_char (abfd) == 0);
4037 }
4038
4039 /* Mark presence or absence of leading underscore.  Set machine type
4040    flags from mach type.  */
4041
4042 static void
4043 cris_elf_final_write_processing (abfd, linker)
4044      bfd *abfd;
4045      bfd_boolean linker ATTRIBUTE_UNUSED;
4046 {
4047   unsigned long e_flags = elf_elfheader (abfd)->e_flags;
4048
4049   e_flags &= ~EF_CRIS_UNDERSCORE;
4050   if (bfd_get_symbol_leading_char (abfd) == '_')
4051     e_flags |= EF_CRIS_UNDERSCORE;
4052
4053   switch (bfd_get_mach (abfd))
4054     {
4055     case bfd_mach_cris_v0_v10:
4056       e_flags |= EF_CRIS_VARIANT_ANY_V0_V10;
4057       break;
4058
4059     case bfd_mach_cris_v10_v32:
4060       e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32;
4061       break;
4062
4063     case bfd_mach_cris_v32:
4064       e_flags |= EF_CRIS_VARIANT_V32;
4065       break;
4066
4067     default:
4068       _bfd_abort (__FILE__, __LINE__,
4069                   _("Unexpected machine number"));
4070     }
4071
4072   elf_elfheader (abfd)->e_flags = e_flags;
4073 }
4074
4075 /* Set the mach type from e_flags value.  */
4076
4077 static bfd_boolean
4078 cris_elf_set_mach_from_flags (abfd, flags)
4079      bfd *abfd;
4080      unsigned long flags;
4081 {
4082   switch (flags & EF_CRIS_VARIANT_MASK)
4083     {
4084     case EF_CRIS_VARIANT_ANY_V0_V10:
4085       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10);
4086       break;
4087
4088     case EF_CRIS_VARIANT_V32:
4089       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32);
4090       break;
4091
4092     case EF_CRIS_VARIANT_COMMON_V10_V32:
4093       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32);
4094       break;
4095
4096     default:
4097       /* Since we don't recognize them, we obviously can't support them
4098          with this code; we'd have to require that all future handling
4099          would be optional.  */
4100       bfd_set_error (bfd_error_wrong_format);
4101       return FALSE;
4102     }
4103
4104   return TRUE;
4105 }
4106
4107 /* Display the flags field.  */
4108
4109 static bfd_boolean
4110 cris_elf_print_private_bfd_data (abfd, ptr)
4111      bfd *abfd;
4112      PTR ptr;
4113 {
4114   FILE *file = (FILE *) ptr;
4115
4116   BFD_ASSERT (abfd != NULL && ptr != NULL);
4117
4118   _bfd_elf_print_private_bfd_data (abfd, ptr);
4119
4120   fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
4121
4122   if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
4123     fprintf (file, _(" [symbols have a _ prefix]"));
4124   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
4125       == EF_CRIS_VARIANT_COMMON_V10_V32)
4126     fprintf (file, _(" [v10 and v32]"));
4127   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
4128       == EF_CRIS_VARIANT_V32)
4129     fprintf (file, _(" [v32]"));
4130
4131   fputc ('\n', file);
4132   return TRUE;
4133 }
4134
4135 /* Don't mix files with and without a leading underscore.  */
4136
4137 static bfd_boolean
4138 cris_elf_merge_private_bfd_data (ibfd, obfd)
4139      bfd *ibfd;
4140      bfd *obfd;
4141 {
4142   int imach, omach;
4143
4144   if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4145     return FALSE;
4146
4147   if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4148       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4149     return TRUE;
4150
4151   imach = bfd_get_mach (ibfd);
4152
4153   if (! elf_flags_init (obfd))
4154     {
4155       /* This happens when ld starts out with a 'blank' output file.  */
4156       elf_flags_init (obfd) = TRUE;
4157
4158       /* We ignore the linker-set mach, and instead set it according to
4159          the first input file.  This would also happen if we could
4160          somehow filter out the OUTPUT_ARCH () setting from elf.sc.
4161          This allows us to keep the same linker config across
4162          cris(v0..v10) and crisv32.  The drawback is that we can't force
4163          the output type, which might be a sane thing to do for a
4164          v10+v32 compatibility object.  */
4165       if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
4166         return FALSE;
4167     }
4168
4169   if (bfd_get_symbol_leading_char (ibfd)
4170       != bfd_get_symbol_leading_char (obfd))
4171     {
4172       (*_bfd_error_handler)
4173         (bfd_get_symbol_leading_char (ibfd) == '_'
4174          ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
4175          : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
4176          ibfd);
4177       bfd_set_error (bfd_error_bad_value);
4178       return FALSE;
4179     }
4180
4181   omach = bfd_get_mach (obfd);
4182
4183   if (imach != omach)
4184     {
4185       /* We can get an incompatible combination only if either is
4186          bfd_mach_cris_v32, and the other one isn't compatible.  */
4187       if ((imach == bfd_mach_cris_v32
4188            && omach != bfd_mach_cris_v10_v32)
4189           || (omach == bfd_mach_cris_v32
4190               && imach != bfd_mach_cris_v10_v32))
4191         {
4192           (*_bfd_error_handler)
4193             ((imach == bfd_mach_cris_v32)
4194              ? _("%B contains CRIS v32 code, incompatible"
4195                  " with previous objects")
4196              : _("%B contains non-CRIS-v32 code, incompatible"
4197                  " with previous objects"),
4198              ibfd);
4199           bfd_set_error (bfd_error_bad_value);
4200           return FALSE;
4201         }
4202
4203       /* We don't have to check the case where the input is compatible
4204          with v10 and v32, because the output is already known to be set
4205          to the other (compatible) mach.  */
4206       if (omach == bfd_mach_cris_v10_v32
4207           && ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
4208         return FALSE;
4209     }
4210
4211   return TRUE;
4212 }
4213
4214 /* Do side-effects of e_flags copying to obfd.  */
4215
4216 static bfd_boolean
4217 cris_elf_copy_private_bfd_data (ibfd, obfd)
4218      bfd *ibfd;
4219      bfd *obfd;
4220 {
4221   /* Call the base function.  */
4222   if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd))
4223     return FALSE;
4224
4225   /* If output is big-endian for some obscure reason, stop here.  */
4226   if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
4227     return FALSE;
4228
4229   if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4230       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4231     return TRUE;
4232
4233   /* Do what we really came here for.  */
4234   return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd));
4235 }
4236
4237 static enum elf_reloc_type_class
4238 elf_cris_reloc_type_class (rela)
4239      const Elf_Internal_Rela *rela;
4240 {
4241   enum elf_cris_reloc_type r_type = ELF32_R_TYPE (rela->r_info);
4242   switch (r_type)
4243     {
4244     case R_CRIS_RELATIVE:
4245       return reloc_class_relative;
4246     case R_CRIS_JUMP_SLOT:
4247       return reloc_class_plt;
4248     case R_CRIS_COPY:
4249       return reloc_class_copy;
4250     default:
4251       return reloc_class_normal;
4252     }
4253 }
4254
4255 /* The elf_backend_got_elt_size worker.  For one symbol, we can have up to
4256    two GOT entries from three types with two different sizes.  We handle
4257    it as a single entry, so we can use the regular offset-calculation
4258    machinery.  */
4259
4260 static bfd_vma
4261 elf_cris_got_elt_size (bfd *abfd ATTRIBUTE_UNUSED,
4262                        struct bfd_link_info *info ATTRIBUTE_UNUSED,
4263                        struct elf_link_hash_entry *hr,
4264                        bfd *ibfd,
4265                        unsigned long symndx)
4266 {
4267   struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) hr;
4268   bfd_vma eltsiz = 0;
4269
4270   /* We may have one regular GOT entry or up to two TLS GOT
4271      entries.  */
4272   if (h == NULL)
4273     {
4274       Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4275       bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (ibfd);
4276
4277       BFD_ASSERT (local_got_refcounts != NULL);
4278
4279       if (local_got_refcounts[LGOT_REG_NDX (symndx)] > 0)
4280         {
4281           /* We can't have a variable referred to both as a regular
4282              variable and through TLS relocs.  */
4283           BFD_ASSERT (local_got_refcounts[LGOT_DTP_NDX (symndx)] == 0
4284                       && local_got_refcounts[LGOT_TPREL_NDX (symndx)] == 0);
4285           return 4;
4286         }
4287
4288       if (local_got_refcounts[LGOT_DTP_NDX (symndx)] > 0)
4289         eltsiz += 8;
4290
4291       if (local_got_refcounts[LGOT_TPREL_NDX (symndx)] > 0)
4292         eltsiz += 4;
4293     }
4294   else
4295     {
4296       struct elf_cris_link_hash_entry *hh = elf_cris_hash_entry (h);
4297       if (hh->reg_got_refcount > 0)
4298         {
4299           /* The actual error-on-input is emitted elsewhere.  */
4300           BFD_ASSERT (hh->dtp_refcount == 0 && hh->tprel_refcount == 0);
4301           return 4;
4302         }
4303
4304       if (hh->dtp_refcount > 0)
4305         eltsiz += 8;
4306
4307       if (hh->tprel_refcount > 0)
4308         eltsiz += 4;
4309     }
4310
4311   /* We're only called when h->got.refcount is non-zero, so we must
4312      have a non-zero size.  */
4313   BFD_ASSERT (eltsiz != 0);
4314   return eltsiz;
4315 }
4316 \f
4317 #define ELF_ARCH                bfd_arch_cris
4318 #define ELF_MACHINE_CODE        EM_CRIS
4319 #define ELF_MAXPAGESIZE         0x2000
4320
4321 #define TARGET_LITTLE_SYM       bfd_elf32_cris_vec
4322 #define TARGET_LITTLE_NAME      "elf32-cris"
4323 #define elf_symbol_leading_char 0
4324
4325 #define elf_info_to_howto_rel                   NULL
4326 #define elf_info_to_howto                       cris_info_to_howto_rela
4327 #define elf_backend_relocate_section            cris_elf_relocate_section
4328 #define elf_backend_gc_mark_hook                cris_elf_gc_mark_hook
4329 #define elf_backend_gc_sweep_hook               cris_elf_gc_sweep_hook
4330 #define elf_backend_plt_sym_val                 cris_elf_plt_sym_val
4331 #define elf_backend_check_relocs                cris_elf_check_relocs
4332 #define elf_backend_grok_prstatus               cris_elf_grok_prstatus
4333 #define elf_backend_grok_psinfo                 cris_elf_grok_psinfo
4334
4335 #define elf_backend_can_gc_sections             1
4336 #define elf_backend_can_refcount                1
4337
4338 #define elf_backend_object_p                    cris_elf_object_p
4339 #define elf_backend_final_write_processing \
4340         cris_elf_final_write_processing
4341 #define bfd_elf32_bfd_print_private_bfd_data \
4342         cris_elf_print_private_bfd_data
4343 #define bfd_elf32_bfd_merge_private_bfd_data \
4344         cris_elf_merge_private_bfd_data
4345 #define bfd_elf32_bfd_copy_private_bfd_data \
4346         cris_elf_copy_private_bfd_data
4347
4348 #define bfd_elf32_bfd_reloc_type_lookup         cris_reloc_type_lookup
4349 #define bfd_elf32_bfd_reloc_name_lookup cris_reloc_name_lookup
4350
4351 #define bfd_elf32_bfd_link_hash_table_create \
4352         elf_cris_link_hash_table_create
4353 #define elf_backend_adjust_dynamic_symbol \
4354         elf_cris_adjust_dynamic_symbol
4355 #define elf_backend_copy_indirect_symbol \
4356         elf_cris_copy_indirect_symbol
4357 #define elf_backend_size_dynamic_sections \
4358         elf_cris_size_dynamic_sections
4359 #define elf_backend_init_index_section          _bfd_elf_init_1_index_section
4360 #define elf_backend_finish_dynamic_symbol \
4361         elf_cris_finish_dynamic_symbol
4362 #define elf_backend_finish_dynamic_sections \
4363         elf_cris_finish_dynamic_sections
4364 #define elf_backend_create_dynamic_sections \
4365         _bfd_elf_create_dynamic_sections
4366 #define bfd_elf32_bfd_final_link \
4367         bfd_elf_gc_common_final_link
4368 #define elf_backend_hide_symbol                 elf_cris_hide_symbol
4369 #define elf_backend_reloc_type_class            elf_cris_reloc_type_class
4370
4371 #define elf_backend_want_got_plt        1
4372 #define elf_backend_plt_readonly        1
4373 #define elf_backend_want_plt_sym        0
4374 #define elf_backend_got_header_size     12
4375 #define elf_backend_got_elt_size elf_cris_got_elt_size
4376
4377 /* Later, we my want to optimize RELA entries into REL entries for dynamic
4378    linking and libraries (if it's a win of any significance).  Until then,
4379    take the easy route.  */
4380 #define elf_backend_may_use_rel_p 0
4381 #define elf_backend_may_use_rela_p 1
4382 #define elf_backend_rela_normal         1
4383
4384 #include "elf32-target.h"
4385
4386 #undef TARGET_LITTLE_SYM
4387 #undef TARGET_LITTLE_NAME
4388 #undef elf_symbol_leading_char
4389
4390 #define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
4391 #define TARGET_LITTLE_NAME "elf32-us-cris"
4392 #define elf_symbol_leading_char '_'
4393 #undef elf32_bed
4394 #define elf32_bed elf32_us_cris_bed
4395
4396 #include "elf32-target.h"