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    2010, 2011 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_lwpid = 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_lwpid = 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 (*) (struct elf_link_hash_entry *, void *)) (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   (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
 895   == CRIS_ELF_DATA ? ((struct elf_cris_link_hash_table *) ((p)->hash)) : NULL)
 896
 897 /* Get the CRIS ELF linker hash entry from a regular hash entry (the
 898    "parent class").  The .root reference is just a simple type
 899    check on the argument.  */
 900
 901 #define elf_cris_hash_entry(p) \
 902  ((struct elf_cris_link_hash_entry *) (&(p)->root))
 903
 904 /* Create an entry in a CRIS ELF linker hash table.  */
 905
 906 static struct bfd_hash_entry *
 907 elf_cris_link_hash_newfunc (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 (bfd *abfd)
 944 {
 945   struct elf_cris_link_hash_table *ret;
 946   bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);
 947
 948   ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
 949   if (ret == (struct elf_cris_link_hash_table *) NULL)
 950     return NULL;
 951
 952   if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
 953                                       elf_cris_link_hash_newfunc,
 954                                       sizeof (struct elf_cris_link_hash_entry),
 955                                       CRIS_ELF_DATA))
 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 (bfd *output_bfd ATTRIBUTE_UNUSED,
1031                            struct bfd_link_info *info,
1032                            bfd *input_bfd,
1033                            asection *input_section,
1034                            bfd_byte *contents,
1035                            Elf_Internal_Rela *relocs,
1036                            Elf_Internal_Sym *local_syms,
1037                            asection **local_sections)
1038 {
1039   struct elf_cris_link_hash_table * htab;
1040   bfd *dynobj;
1041   Elf_Internal_Shdr *symtab_hdr;
1042   struct elf_link_hash_entry **sym_hashes;
1043   bfd_vma *local_got_offsets;
1044   asection *sgot;
1045   asection *splt;
1046   asection *sreloc;
1047   Elf_Internal_Rela *rel;
1048   Elf_Internal_Rela *relend;
1049   asection *srelgot;
1050
1051   htab = elf_cris_hash_table (info);
1052   if (htab == NULL)
1053     return FALSE;
1054
1055   dynobj = elf_hash_table (info)->dynobj;
1056   local_got_offsets = elf_local_got_offsets (input_bfd);
1057   symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
1058   sym_hashes = elf_sym_hashes (input_bfd);
1059   relend     = relocs + input_section->reloc_count;
1060
1061   sgot = NULL;
1062   splt = NULL;
1063   sreloc = NULL;
1064   srelgot = NULL;
1065
1066   if (dynobj != NULL)
1067     {
1068       splt = bfd_get_section_by_name (dynobj, ".plt");
1069       sgot = bfd_get_section_by_name (dynobj, ".got");
1070     }
1071
1072   for (rel = relocs; rel < relend; rel ++)
1073     {
1074       reloc_howto_type *howto;
1075       unsigned long r_symndx;
1076       Elf_Internal_Sym *sym;
1077       asection *sec;
1078       struct elf_link_hash_entry *h;
1079       bfd_vma relocation;
1080       bfd_reloc_status_type r;
1081       const char *symname = NULL;
1082       enum elf_cris_reloc_type r_type;
1083
1084       r_type = ELF32_R_TYPE (rel->r_info);
1085
1086       if (   r_type == R_CRIS_GNU_VTINHERIT
1087           || r_type == R_CRIS_GNU_VTENTRY)
1088         continue;
1089
1090       r_symndx = ELF32_R_SYM (rel->r_info);
1091       howto  = cris_elf_howto_table + r_type;
1092       h      = NULL;
1093       sym    = NULL;
1094       sec    = NULL;
1095
1096       if (r_symndx < symtab_hdr->sh_info)
1097         {
1098           sym = local_syms + r_symndx;
1099           sec = local_sections [r_symndx];
1100           relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1101
1102           symname = (bfd_elf_string_from_elf_section
1103                      (input_bfd, symtab_hdr->sh_link, sym->st_name));
1104           if (symname == NULL)
1105             symname = bfd_section_name (input_bfd, sec);
1106         }
1107       else
1108         {
1109           bfd_boolean warned;
1110           bfd_boolean unresolved_reloc;
1111
1112           RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1113                                    r_symndx, symtab_hdr, sym_hashes,
1114                                    h, sec, relocation,
1115                                    unresolved_reloc, warned);
1116
1117           symname = h->root.root.string;
1118
1119           if (unresolved_reloc
1120               /* Perhaps we should detect the cases that
1121                  sec->output_section is expected to be NULL like i386 and
1122                  m68k, but apparently (and according to elfxx-ia64.c) all
1123                  valid cases are where the symbol is defined in a shared
1124                  object which we link dynamically against.  This includes
1125                  PLT relocs for which we've created a PLT entry and other
1126                  relocs for which we're prepared to create dynamic
1127                  relocations.
1128
1129                  For now, new situations cause us to just err when
1130                  sec->output_offset is NULL but the object with the symbol
1131                  is *not* dynamically linked against.  Thus this will
1132                  automatically remind us so we can see if there are other
1133                  valid cases we need to revisit.  */
1134               && (sec->owner->flags & DYNAMIC) != 0)
1135             relocation = 0;
1136
1137           else if (h->root.type == bfd_link_hash_defined
1138                    || h->root.type == bfd_link_hash_defweak)
1139             {
1140               /* Here follow the cases where the relocation value must
1141                  be zero (or when further handling is simplified when
1142                  zero).  I can't claim to understand the various
1143                  conditions and they weren't described in the files
1144                  where I copied them from (elf32-m68k.c and
1145                  elf32-i386.c), but let's mention examples of where
1146                  they happen.  FIXME: Perhaps define and use a
1147                  dynamic_symbol_p function like ia64.
1148
1149                  - When creating a shared library, we can have an
1150                  ordinary relocation for a symbol defined in a shared
1151                  library (perhaps the one we create).  We then make
1152                  the relocation value zero, as the value seen now will
1153                  be added into the relocation addend in this shared
1154                  library, but must be handled only at dynamic-link
1155                  time.  FIXME: Not sure this example covers the
1156                  h->elf_link_hash_flags test, though it's there in
1157                  other targets.  */
1158               if (info->shared
1159                   && ((! info->symbolic && h->dynindx != -1)
1160                       || !h->def_regular)
1161                   && (input_section->flags & SEC_ALLOC) != 0
1162                   && (r_type == R_CRIS_8
1163                       || r_type == R_CRIS_16
1164                       || r_type == R_CRIS_32
1165                       || r_type == R_CRIS_8_PCREL
1166                       || r_type == R_CRIS_16_PCREL
1167                       || r_type == R_CRIS_32_PCREL))
1168                 relocation = 0;
1169               else if (!info->relocatable && unresolved_reloc
1170                        && (_bfd_elf_section_offset (output_bfd, info,
1171                                                     input_section,
1172                                                     rel->r_offset)
1173                            != (bfd_vma) -1))
1174                 {
1175                   _bfd_error_handler
1176                     (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
1177                      input_bfd,
1178                      input_section,
1179                      cris_elf_howto_table[r_type].name,
1180                      symname);
1181                   bfd_set_error (bfd_error_bad_value);
1182                   return FALSE;
1183                 }
1184             }
1185         }
1186
1187       if (sec != NULL && elf_discarded_section (sec))
1188         RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1189                                          rel, relend, howto, contents);
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 != STN_UNDEF
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                     (dynobj, 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                               osec = htab->root.text_index_section;
1591                               indx = elf_section_data (osec)->dynindx;
1592                             }
1593                           BFD_ASSERT (indx != 0);
1594                         }
1595
1596                       outrel.r_info = ELF32_R_INFO (indx, r_type);
1597                     }
1598                 }
1599
1600               loc = sreloc->contents;
1601               loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1602               bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1603
1604               /* This reloc will be computed at runtime, so there's no
1605                  need to do anything now, except for R_CRIS_32 relocations
1606                  that have been turned into R_CRIS_RELATIVE.  */
1607               if (!relocate)
1608                 continue;
1609             }
1610
1611           break;
1612
1613         case R_CRIS_16_DTPREL:
1614         case R_CRIS_32_DTPREL:
1615           /* This relocation must only be performed against local
1616              symbols, or to sections that are not loadable.  It's also
1617              ok when we link a program and the symbol is defined in an
1618              ordinary (non-DSO) object (if it's undefined there, we've
1619              already seen an error).  */
1620           if (h != NULL
1621               && (input_section->flags & SEC_ALLOC) != 0
1622               && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1623               && (info->shared
1624                   || (!h->def_regular
1625                       && h->root.type != bfd_link_hash_undefined)))
1626             {
1627               (*_bfd_error_handler)
1628                 ((h->root.type == bfd_link_hash_undefined)
1629                  /* We shouldn't get here for GCC-emitted code.  */
1630                  ? _("%B, section %A: relocation %s has an undefined"
1631                      " reference to `%s', perhaps a declaration mixup?")
1632                  : ("%B, section %A: relocation %s is"
1633                      " not allowed for `%s', a global symbol with default"
1634                      " visibility, perhaps a declaration mixup?"),
1635                  input_bfd,
1636                  input_section,
1637                  cris_elf_howto_table[r_type].name,
1638                  symname != NULL && symname[0] != '\0'
1639                  ? symname : _("[whose name is lost]"));
1640               bfd_set_error (bfd_error_bad_value);
1641               return FALSE;
1642             }
1643
1644           BFD_ASSERT ((input_section->flags & SEC_ALLOC) == 0
1645                       || htab->dtpmod_refcount != 0);
1646
1647           /* Fill in a R_CRIS_DTPMOD reloc at offset 3 if we haven't
1648              already done so.  Note that we do this in .got.plt, not
1649              in .got, as .got.plt contains the first part, still the
1650              reloc is against .got, because the linker script directs
1651              (is required to direct) them both into .got.  */
1652           if (htab->dtpmod_refcount > 0
1653               && (input_section->flags & SEC_ALLOC) != 0)
1654             {
1655               asection *sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1656               BFD_ASSERT (sgotplt != NULL);
1657
1658               if (info->shared)
1659                 {
1660                   Elf_Internal_Rela outrel;
1661                   bfd_byte *loc;
1662
1663                   if (srelgot == NULL)
1664                     srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1665                   BFD_ASSERT (srelgot != NULL);
1666                   loc = srelgot->contents;
1667                   loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1668
1669                   bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 12);
1670                   bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 16);
1671                   outrel.r_offset = (sgotplt->output_section->vma
1672                                      + sgotplt->output_offset
1673                                      + 12);
1674                   outrel.r_info = ELF32_R_INFO (0, R_CRIS_DTPMOD);
1675                   outrel.r_addend = 0;
1676                   bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1677                 }
1678               else
1679                 {
1680                   /* For an executable, the GOT entry contents is known.  */
1681                   bfd_put_32 (output_bfd, (bfd_vma) 1, sgotplt->contents + 12);
1682                   bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 16);
1683                 }
1684
1685               /* Reverse the sign to mark that we've emitted the
1686                  required GOT entry.  */
1687               htab->dtpmod_refcount = - htab->dtpmod_refcount;
1688             }
1689
1690           /* The relocation is the offset from the start of the module
1691              TLS block to the (local) symbol.  */
1692           relocation -= elf_hash_table (info)->tls_sec == NULL
1693             ? 0 : elf_hash_table (info)->tls_sec->vma;
1694           break;
1695
1696         case R_CRIS_32_GD:
1697           if (info->shared)
1698             {
1699               bfd_set_error (bfd_error_invalid_operation);
1700
1701               /* We've already informed in cris_elf_check_relocs that
1702                  this is an error.  */
1703               return FALSE;
1704             }
1705           /* Fall through.  */
1706
1707         case R_CRIS_16_GOT_GD:
1708         case R_CRIS_32_GOT_GD:
1709           if (rel->r_addend != 0)
1710             {
1711               /* We can't do anything for a relocation which is against a
1712                  symbol *plus offset*.  The GOT holds relocations for
1713                  symbols.  Make this an error; the compiler isn't allowed
1714                  to pass us these kinds of things.  */
1715               (*_bfd_error_handler)
1716                 (_("%B, section %A: relocation %s with non-zero addend %d"
1717                    " against symbol `%s'"),
1718                  input_bfd,
1719                  input_section,
1720                  cris_elf_howto_table[r_type].name,
1721                  rel->r_addend,
1722                  symname[0] != '\0' ? symname : _("[whose name is lost]"));
1723
1724               bfd_set_error (bfd_error_bad_value);
1725               return FALSE;
1726             }
1727
1728           if (!info->shared
1729               && (h == NULL || h->def_regular || ELF_COMMON_DEF_P (h)))
1730             {
1731               /* Known contents of the GOT.  */
1732               bfd_vma off;
1733
1734               /* The symbol is defined in the program, so just write
1735                  (1, known_tpoffset) into the GOT.  */
1736               relocation -= elf_hash_table (info)->tls_sec->vma;
1737
1738               if (h != NULL)
1739                 {
1740                   off = elf_cris_hash_entry (h)->tprel_refcount > 0
1741                     ? h->got.offset + 4 : h->got.offset;
1742                 }
1743               else
1744                 {
1745                   off = local_got_offsets[r_symndx];
1746                   if (local_got_offsets[LGOT_TPREL_NDX (r_symndx)])
1747                     off += 4;
1748                 }
1749
1750               /* We use bit 1 of the offset as a flag for GOT entry with
1751                  the R_CRIS_DTP reloc, setting it when we've emitted the
1752                  GOT entry and reloc.  Bit 0 is used for R_CRIS_32_TPREL
1753                  relocs.  */
1754               if ((off & 2) == 0)
1755                 {
1756                   off &= ~3;
1757
1758                   if (h != NULL)
1759                     h->got.offset |= 2;
1760                   else
1761                     local_got_offsets[r_symndx] |= 2;
1762
1763                   bfd_put_32 (output_bfd, 1, sgot->contents + off);
1764                   bfd_put_32 (output_bfd, relocation, sgot->contents + off + 4);
1765                 }
1766               else
1767                 off &= ~3;
1768
1769               relocation = sgot->output_offset + off
1770                 + (r_type == R_CRIS_32_GD ? sgot->output_section->vma : 0);
1771             }
1772           else
1773             {
1774               /* Not all parts of the GOT entry are known; emit a real
1775                  relocation.  */
1776               bfd_vma off;
1777
1778               if (h != NULL)
1779                 off = elf_cris_hash_entry (h)->tprel_refcount > 0
1780                   ? h->got.offset + 4 : h->got.offset;
1781               else
1782                 {
1783                   off = local_got_offsets[r_symndx];
1784                   if (local_got_offsets[LGOT_TPREL_NDX (r_symndx)])
1785                     off += 4;
1786                 }
1787
1788               /* See above re bit 1 and bit 0 usage.  */
1789               if ((off & 2) == 0)
1790                 {
1791                   Elf_Internal_Rela outrel;
1792                   bfd_byte *loc;
1793
1794                   off &= ~3;
1795
1796                   if (h != NULL)
1797                     h->got.offset |= 2;
1798                   else
1799                     local_got_offsets[r_symndx] |= 2;
1800
1801                   /* Clear the target contents of the GOT (just as a
1802                      gesture; it's already cleared on allocation): this
1803                      relocation is not like the other dynrelocs.  */
1804                   bfd_put_32 (output_bfd, 0, sgot->contents + off);
1805                   bfd_put_32 (output_bfd, 0, sgot->contents + off + 4);
1806
1807                   if (srelgot == NULL)
1808                     srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1809                   BFD_ASSERT (srelgot != NULL);
1810
1811                   if (h != NULL && h->dynindx != -1)
1812                     {
1813                       outrel.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_DTP);
1814                       relocation = 0;
1815                     }
1816                   else
1817                     {
1818                       outrel.r_info = ELF32_R_INFO (0, R_CRIS_DTP);
1819
1820                       /* NULL if we had an error.  */
1821                       relocation -= elf_hash_table (info)->tls_sec == NULL
1822                         ? 0 : elf_hash_table (info)->tls_sec->vma;
1823                     }
1824
1825                   outrel.r_offset = (sgot->output_section->vma
1826                                      + sgot->output_offset
1827                                      + off);
1828                   outrel.r_addend = relocation;
1829                   loc = srelgot->contents;
1830                   loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1831
1832                   /* NULL if we had an error.  */
1833                   if (srelgot->contents != NULL)
1834                     bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1835                 }
1836               else
1837                 off &= ~3;
1838
1839               relocation = sgot->output_offset + off
1840                 + (r_type == R_CRIS_32_GD ? sgot->output_section->vma : 0);
1841             }
1842
1843           /* The GOT-relative offset to the GOT entry is the
1844              relocation, or for R_CRIS_32_GD, the actual address of
1845              the GOT entry.  */
1846           break;
1847
1848         case R_CRIS_32_IE:
1849           if (info->shared)
1850             {
1851               bfd_set_error (bfd_error_invalid_operation);
1852
1853               /* We've already informed in cris_elf_check_relocs that
1854                  this is an error.  */
1855               return FALSE;
1856             }
1857           /* Fall through.  */
1858
1859         case R_CRIS_32_GOT_TPREL:
1860         case R_CRIS_16_GOT_TPREL:
1861           if (rel->r_addend != 0)
1862             {
1863               /* We can't do anything for a relocation which is
1864                  against a symbol *plus offset*.  GOT holds
1865                  relocations for symbols.  Make this an error; the
1866                  compiler isn't allowed to pass us these kinds of
1867                  things.  */
1868               (*_bfd_error_handler)
1869                 (_("%B, section %A: relocation %s with non-zero addend %d"
1870                    " against symbol `%s'"),
1871                  input_bfd,
1872                  input_section,
1873                  cris_elf_howto_table[r_type].name,
1874                  rel->r_addend,
1875                  symname[0] != '\0' ? symname : _("[whose name is lost]"));
1876               bfd_set_error (bfd_error_bad_value);
1877               return FALSE;
1878             }
1879
1880           if (!info->shared && (h == NULL || h->def_regular))
1881             {
1882               /* Known contents of the GOT.  */
1883               bfd_vma off;
1884
1885               /* The symbol is defined in the program, so just write
1886                  the -prog_tls_size+known_tpoffset into the GOT.  */
1887               relocation -= elf_hash_table (info)->tls_sec->vma;
1888               relocation -= elf_hash_table (info)->tls_size;
1889
1890               if (h != NULL)
1891                 off = h->got.offset;
1892               else
1893                 off = local_got_offsets[r_symndx];
1894
1895               /* Bit 0 is used to mark whether we've emitted the required
1896                  entry (and if needed R_CRIS_32_TPREL reloc).  Bit 1
1897                  is used similarly for R_CRIS_DTP, see above.  */
1898               if ((off & 1) == 0)
1899                 {
1900                   off &= ~3;
1901
1902                   if (h != NULL)
1903                     h->got.offset |= 1;
1904                   else
1905                     local_got_offsets[r_symndx] |= 1;
1906
1907                   bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1908                 }
1909               else
1910                 off &= ~3;
1911
1912               relocation = sgot->output_offset + off
1913                 + (r_type == R_CRIS_32_IE ? sgot->output_section->vma : 0);
1914             }
1915           else
1916             {
1917               /* Emit a real relocation.  */
1918               bfd_vma off;
1919
1920               if (h != NULL)
1921                 off = h->got.offset;
1922               else
1923                 off = local_got_offsets[r_symndx];
1924
1925               /* See above re usage of bit 0 and 1.  */
1926               if ((off & 1) == 0)
1927                 {
1928                   Elf_Internal_Rela outrel;
1929                   bfd_byte *loc;
1930
1931                   off &= ~3;
1932
1933                   if (h != NULL)
1934                     h->got.offset |= 1;
1935                   else
1936                     local_got_offsets[r_symndx] |= 1;
1937
1938                   if (srelgot == NULL)
1939                     srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1940                   BFD_ASSERT (srelgot != NULL);
1941
1942                   if (h != NULL && h->dynindx != -1)
1943                     {
1944                       outrel.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_32_TPREL);
1945                       relocation = 0;
1946                     }
1947                   else
1948                     {
1949                       outrel.r_info = ELF32_R_INFO (0, R_CRIS_32_TPREL);
1950
1951                       /* NULL if we had an error.  */
1952                       relocation -= elf_hash_table (info)->tls_sec == NULL
1953                         ? 0 : elf_hash_table (info)->tls_sec->vma;
1954                     }
1955
1956                   /* Just "define" the initial contents in some
1957                      semi-logical way.  */
1958                   bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1959
1960                   outrel.r_offset = (sgot->output_section->vma
1961                                      + sgot->output_offset
1962                                      + off);
1963                   outrel.r_addend = relocation;
1964                   loc = srelgot->contents;
1965                   loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1966                   /* NULL if we had an error.  */
1967                   if (srelgot->contents != NULL)
1968                     bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1969                 }
1970               else
1971                 off &= ~3;
1972
1973               relocation = sgot->output_offset + off
1974                 + (r_type == R_CRIS_32_IE ? sgot->output_section->vma : 0);
1975             }
1976
1977           /* The GOT-relative offset to the GOT entry is the relocation,
1978              or for R_CRIS_32_GD, the actual address of the GOT entry.  */
1979           break;
1980
1981         case R_CRIS_16_TPREL:
1982         case R_CRIS_32_TPREL:
1983           /* This relocation must only be performed against symbols
1984              defined in an ordinary (non-DSO) object.  */
1985           if (info->shared)
1986             {
1987               bfd_set_error (bfd_error_invalid_operation);
1988
1989               /* We've already informed in cris_elf_check_relocs that
1990                  this is an error.  */
1991               return FALSE;
1992             }
1993
1994           if (h != NULL
1995               && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1996               && !(h->def_regular || ELF_COMMON_DEF_P (h))
1997               /* If it's undefined, then an error message has already
1998                  been emitted.  */
1999               && h->root.type != bfd_link_hash_undefined)
2000             {
2001               (*_bfd_error_handler)
2002                 (_("%B, section %A: relocation %s is"
2003                    " not allowed for symbol: `%s'"
2004                    " which is defined outside the program,"
2005                    " perhaps a declaration mixup?"),
2006                  input_bfd,
2007                  input_section,
2008                  cris_elf_howto_table[r_type].name,
2009                  symname);
2010               bfd_set_error (bfd_error_bad_value);
2011               return FALSE;
2012             }
2013
2014           /* NULL if we had an error.  */
2015           relocation -= elf_hash_table (info)->tls_sec == NULL
2016             ? 0
2017             : (elf_hash_table (info)->tls_sec->vma
2018                + elf_hash_table (info)->tls_size);
2019
2020           /* The TLS-relative offset is the relocation.  */
2021           break;
2022
2023         default:
2024           BFD_FAIL ();
2025           return FALSE;
2026         }
2027
2028       r = cris_final_link_relocate (howto, input_bfd, input_section,
2029                                      contents, rel, relocation);
2030
2031       if (r != bfd_reloc_ok)
2032         {
2033           const char * msg = (const char *) NULL;
2034
2035           switch (r)
2036             {
2037             case bfd_reloc_overflow:
2038               r = info->callbacks->reloc_overflow
2039                 (info, (h ? &h->root : NULL), symname, howto->name,
2040                  (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
2041               if (additional_relocation_error_msg_count > 0)
2042                 {
2043                   additional_relocation_error_msg_count--;
2044                   switch (r_type)
2045                     {
2046                     case R_CRIS_16_GOTPLT:
2047                     case R_CRIS_16_GOT:
2048
2049                       /* Not just TLS is involved here, so we make
2050                          generation and message depend on -fPIC/-fpic
2051                          only.  */
2052                     case R_CRIS_16_GOT_TPREL:
2053                     case R_CRIS_16_GOT_GD:
2054                       (*_bfd_error_handler)
2055                         (_("(too many global variables for -fpic:"
2056                            " recompile with -fPIC)"));
2057                       break;
2058
2059                     case R_CRIS_16_TPREL:
2060                     case R_CRIS_16_DTPREL:
2061                       (*_bfd_error_handler)
2062                         (_("(thread-local data too big for -fpic or"
2063                            " -msmall-tls: recompile with -fPIC or"
2064                            " -mno-small-tls)"));
2065                       break;
2066
2067                       /* No known cause for overflow for other relocs.  */
2068                     default:
2069                       break;
2070                     }
2071                 }
2072               break;
2073
2074             case bfd_reloc_undefined:
2075               r = info->callbacks->undefined_symbol
2076                 (info, symname, input_bfd, input_section, rel->r_offset,
2077                  TRUE);
2078               break;
2079
2080             case bfd_reloc_outofrange:
2081               msg = _("internal error: out of range error");
2082               break;
2083
2084             case bfd_reloc_notsupported:
2085               msg = _("internal error: unsupported relocation error");
2086               break;
2087
2088             case bfd_reloc_dangerous:
2089               msg = _("internal error: dangerous relocation");
2090               break;
2091
2092             default:
2093               msg = _("internal error: unknown error");
2094               break;
2095             }
2096
2097           if (msg)
2098             r = info->callbacks->warning
2099               (info, msg, symname, input_bfd, input_section, rel->r_offset);
2100
2101           if (! r)
2102             return FALSE;
2103         }
2104     }
2105
2106   return TRUE;
2107 }
2108 \f
2109 /* Finish up dynamic symbol handling.  We set the contents of various
2110    dynamic sections here.  */
2111
2112 static bfd_boolean
2113 elf_cris_finish_dynamic_symbol (bfd *output_bfd,
2114                                 struct bfd_link_info *info,
2115                                 struct elf_link_hash_entry *h,
2116                                 Elf_Internal_Sym *sym)
2117 {
2118   struct elf_cris_link_hash_table * htab;
2119   bfd *dynobj;
2120
2121   /* Where in the plt entry to put values.  */
2122   int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
2123
2124   /* What offset to add to the distance to the first PLT entry for the
2125      value at plt_off3.   */
2126   int plt_off3_value_bias = 4;
2127
2128   /* Where in the PLT entry the call-dynlink-stub is (happens to be same
2129      for PIC and non-PIC for v32 and pre-v32).  */
2130   int plt_stub_offset = 8;
2131   int plt_entry_size = PLT_ENTRY_SIZE;
2132   const bfd_byte *plt_entry = elf_cris_plt_entry;
2133   const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry;
2134
2135   htab = elf_cris_hash_table (info);
2136   if (htab == NULL)
2137     return FALSE;
2138
2139   /* Adjust the various PLT entry offsets.  */
2140   if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
2141     {
2142       plt_off2 = 14;
2143       plt_off3 = 20;
2144       plt_off3_value_bias = -2;
2145       plt_stub_offset = 12;
2146       plt_entry_size = PLT_ENTRY_SIZE_V32;
2147       plt_entry = elf_cris_plt_entry_v32;
2148       plt_pic_entry = elf_cris_pic_plt_entry_v32;
2149     }
2150
2151   dynobj = elf_hash_table (info)->dynobj;
2152
2153   if (h->plt.offset != (bfd_vma) -1)
2154     {
2155       asection *splt;
2156       asection *sgotplt;
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         = (htab->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 + htab->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       sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
2197       srela = bfd_get_section_by_name (dynobj, ".rela.plt");
2198       BFD_ASSERT (splt != NULL && sgotplt != NULL
2199                   && (! has_gotplt || srela != NULL));
2200
2201       got_base = sgotplt->output_section->vma + sgotplt->output_offset;
2202
2203       /* Fill in the entry in the procedure linkage table.  */
2204       if (! info->shared)
2205         {
2206           memcpy (splt->contents + h->plt.offset, plt_entry,
2207                   plt_entry_size);
2208
2209           /* We need to enter the absolute address of the GOT entry here.  */
2210           bfd_put_32 (output_bfd, got_base + got_offset,
2211                       splt->contents + h->plt.offset + plt_off1);
2212         }
2213       else
2214         {
2215           memcpy (splt->contents + h->plt.offset, plt_pic_entry,
2216                   plt_entry_size);
2217           bfd_put_32 (output_bfd, got_offset,
2218                       splt->contents + h->plt.offset + plt_off1);
2219         }
2220
2221       /* Fill in the plt entry and make a relocation, if this is a "real"
2222          PLT entry.  */
2223       if (has_gotplt)
2224         {
2225           /* Fill in the offset to the reloc table.  */
2226           bfd_put_32 (output_bfd,
2227                       rela_plt_index * sizeof (Elf32_External_Rela),
2228                       splt->contents + h->plt.offset + plt_off2);
2229
2230           /* Fill in the offset to the first PLT entry, where to "jump".  */
2231           bfd_put_32 (output_bfd,
2232                       - (h->plt.offset + plt_off3 + plt_off3_value_bias),
2233                       splt->contents + h->plt.offset + plt_off3);
2234
2235           /* Fill in the entry in the global offset table with the address of
2236              the relocating stub.  */
2237           bfd_put_32 (output_bfd,
2238                       (splt->output_section->vma
2239                        + splt->output_offset
2240                        + h->plt.offset
2241                        + plt_stub_offset),
2242                       sgotplt->contents + got_offset);
2243
2244           /* Fill in the entry in the .rela.plt section.  */
2245           rela.r_offset = (sgotplt->output_section->vma
2246                            + sgotplt->output_offset
2247                            + got_offset);
2248           rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
2249           rela.r_addend = 0;
2250           loc = srela->contents + rela_plt_index * sizeof (Elf32_External_Rela);
2251           bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2252         }
2253
2254       if (!h->def_regular)
2255         {
2256           /* Mark the symbol as undefined, rather than as defined in
2257              the .plt section.  Leave the value alone.  */
2258           sym->st_shndx = SHN_UNDEF;
2259
2260           /* FIXME: From elf32-sparc.c 2001-02-19 (1.18).  I still don't
2261              know whether resetting the value is significant; if it really
2262              is, rather than a quirk or bug in the sparc port, then I
2263              believe we'd see this elsewhere.  */
2264           /* If the symbol is weak, we do need to clear the value.
2265              Otherwise, the PLT entry would provide a definition for
2266              the symbol even if the symbol wasn't defined anywhere,
2267              and so the symbol would never be NULL.  */
2268           if (!h->ref_regular_nonweak)
2269             sym->st_value = 0;
2270         }
2271     }
2272
2273   /* For an ordinary program, we emit .got relocs only for symbols that
2274      are in the dynamic-symbols table and are either defined by the
2275      program or are undefined weak symbols, or are function symbols
2276      where we do not output a PLT: the PLT reloc was output above and all
2277      references to the function symbol are redirected to the PLT.  */
2278   if (h->got.offset != (bfd_vma) -1
2279       && (elf_cris_hash_entry (h)->reg_got_refcount > 0)
2280       && (info->shared
2281           || (h->dynindx != -1
2282               && h->plt.offset == (bfd_vma) -1
2283               && !h->def_regular
2284               && h->root.type != bfd_link_hash_undefweak)))
2285     {
2286       asection *sgot;
2287       asection *srela;
2288       Elf_Internal_Rela rela;
2289       bfd_byte *loc;
2290       bfd_byte *where;
2291
2292       /* This symbol has an entry in the global offset table.  Set it up.  */
2293
2294       sgot = bfd_get_section_by_name (dynobj, ".got");
2295       srela = bfd_get_section_by_name (dynobj, ".rela.got");
2296       BFD_ASSERT (sgot != NULL && srela != NULL);
2297
2298       rela.r_offset = (sgot->output_section->vma
2299                        + sgot->output_offset
2300                        + (h->got.offset &~ (bfd_vma) 1));
2301
2302       /* If this is a static link, or it is a -Bsymbolic link and the
2303          symbol is defined locally or was forced to be local because
2304          of a version file, we just want to emit a RELATIVE reloc.
2305          The entry in the global offset table will already have been
2306          initialized in the relocate_section function.  */
2307       where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
2308       if (! elf_hash_table (info)->dynamic_sections_created
2309           || (info->shared
2310               && (info->symbolic || h->dynindx == -1)
2311               && h->def_regular))
2312         {
2313           rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
2314           rela.r_addend = bfd_get_signed_32 (output_bfd, where);
2315         }
2316       else
2317         {
2318           bfd_put_32 (output_bfd, (bfd_vma) 0, where);
2319           rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
2320           rela.r_addend = 0;
2321         }
2322
2323       loc = srela->contents;
2324       loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
2325       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2326     }
2327
2328   if (h->needs_copy)
2329     {
2330       asection *s;
2331       Elf_Internal_Rela rela;
2332       bfd_byte *loc;
2333
2334       /* This symbol needs a copy reloc.  Set it up.  */
2335
2336       BFD_ASSERT (h->dynindx != -1
2337                   && (h->root.type == bfd_link_hash_defined
2338                       || h->root.type == bfd_link_hash_defweak));
2339
2340       s = bfd_get_section_by_name (h->root.u.def.section->owner,
2341                                    ".rela.bss");
2342       BFD_ASSERT (s != NULL);
2343
2344       rela.r_offset = (h->root.u.def.value
2345                        + h->root.u.def.section->output_section->vma
2346                        + h->root.u.def.section->output_offset);
2347       rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
2348       rela.r_addend = 0;
2349       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
2350       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2351     }
2352
2353   /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
2354   if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2355       || h == elf_hash_table (info)->hgot)
2356     sym->st_shndx = SHN_ABS;
2357
2358   return TRUE;
2359 }
2360 \f
2361 /* Finish up the dynamic sections.  Do *not* emit relocs here, as their
2362    offsets were changed, as part of -z combreloc handling, from those we
2363    computed.  */
2364
2365 static bfd_boolean
2366 elf_cris_finish_dynamic_sections (output_bfd, info)
2367      bfd *output_bfd;
2368      struct bfd_link_info *info;
2369 {
2370   bfd *dynobj;
2371   asection *sgot;
2372   asection *sdyn;
2373
2374   dynobj = elf_hash_table (info)->dynobj;
2375
2376   sgot = bfd_get_section_by_name (dynobj, ".got.plt");
2377   BFD_ASSERT (sgot != NULL);
2378   sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2379
2380   if (elf_hash_table (info)->dynamic_sections_created)
2381     {
2382       asection *splt;
2383       Elf32_External_Dyn *dyncon, *dynconend;
2384
2385       splt = bfd_get_section_by_name (dynobj, ".plt");
2386       BFD_ASSERT (splt != NULL && sdyn != NULL);
2387
2388       dyncon = (Elf32_External_Dyn *) sdyn->contents;
2389       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
2390       for (; dyncon < dynconend; dyncon++)
2391         {
2392           Elf_Internal_Dyn dyn;
2393           asection *s;
2394
2395           bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2396
2397           switch (dyn.d_tag)
2398             {
2399             default:
2400               break;
2401
2402             case DT_PLTGOT:
2403               s = bfd_get_section_by_name (output_bfd, ".got");
2404               BFD_ASSERT (s != NULL);
2405               dyn.d_un.d_ptr = s->vma;
2406               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2407               break;
2408
2409             case DT_JMPREL:
2410               /* Yes, we *can* have a .plt and no .plt.rela, for instance
2411                  if all symbols are found in the .got (not .got.plt).  */
2412               s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2413               dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
2414               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2415               break;
2416
2417             case DT_PLTRELSZ:
2418               s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2419               if (s == NULL)
2420                 dyn.d_un.d_val = 0;
2421               else
2422                 dyn.d_un.d_val = s->size;
2423               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2424               break;
2425
2426             case DT_RELASZ:
2427               /* The procedure linkage table relocs (DT_JMPREL) should
2428                  not be included in the overall relocs (DT_RELA).
2429                  Therefore, we override the DT_RELASZ entry here to
2430                  make it not include the JMPREL relocs.  Since the
2431                  linker script arranges for .rela.plt to follow all
2432                  other relocation sections, we don't have to worry
2433                  about changing the DT_RELA entry.  */
2434               s = bfd_get_section_by_name (output_bfd, ".rela.plt");
2435               if (s != NULL)
2436                 dyn.d_un.d_val -= s->size;
2437               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2438               break;
2439             }
2440         }
2441
2442       /* Fill in the first entry in the procedure linkage table.  */
2443       if (splt->size > 0)
2444         {
2445           if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
2446             {
2447               if (info->shared)
2448                 memcpy (splt->contents, elf_cris_pic_plt0_entry_v32,
2449                         PLT_ENTRY_SIZE_V32);
2450               else
2451                 {
2452                   memcpy (splt->contents, elf_cris_plt0_entry_v32,
2453                           PLT_ENTRY_SIZE_V32);
2454                   bfd_put_32 (output_bfd,
2455                               sgot->output_section->vma
2456                               + sgot->output_offset + 4,
2457                               splt->contents + 4);
2458
2459                   elf_section_data (splt->output_section)->this_hdr.sh_entsize
2460                     = PLT_ENTRY_SIZE_V32;
2461                 }
2462             }
2463           else
2464             {
2465               if (info->shared)
2466                 memcpy (splt->contents, elf_cris_pic_plt0_entry,
2467                         PLT_ENTRY_SIZE);
2468               else
2469                 {
2470                   memcpy (splt->contents, elf_cris_plt0_entry,
2471                           PLT_ENTRY_SIZE);
2472                   bfd_put_32 (output_bfd,
2473                               sgot->output_section->vma
2474                               + sgot->output_offset + 4,
2475                               splt->contents + 6);
2476                   bfd_put_32 (output_bfd,
2477                               sgot->output_section->vma
2478                               + sgot->output_offset + 8,
2479                               splt->contents + 14);
2480
2481                   elf_section_data (splt->output_section)->this_hdr.sh_entsize
2482                     = PLT_ENTRY_SIZE;
2483                 }
2484             }
2485         }
2486     }
2487
2488   /* Fill in the first three entries in the global offset table.  */
2489   if (sgot->size > 0)
2490     {
2491       if (sdyn == NULL)
2492         bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
2493       else
2494         bfd_put_32 (output_bfd,
2495                     sdyn->output_section->vma + sdyn->output_offset,
2496                     sgot->contents);
2497       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
2498       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
2499     }
2500
2501   elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
2502
2503   return TRUE;
2504 }
2505 \f
2506 /* Return the section that should be marked against GC for a given
2507    relocation.  */
2508
2509 static asection *
2510 cris_elf_gc_mark_hook (asection *sec,
2511                        struct bfd_link_info *info,
2512                        Elf_Internal_Rela *rel,
2513                        struct elf_link_hash_entry *h,
2514                        Elf_Internal_Sym *sym)
2515 {
2516   enum elf_cris_reloc_type r_type = ELF32_R_TYPE (rel->r_info);
2517   if (h != NULL)
2518     switch (r_type)
2519       {
2520       case R_CRIS_GNU_VTINHERIT:
2521       case R_CRIS_GNU_VTENTRY:
2522         return NULL;
2523
2524       default:
2525         break;
2526       }
2527
2528   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2529 }
2530
2531 /* Update the got entry reference counts for the section being removed.  */
2532
2533 static bfd_boolean
2534 cris_elf_gc_sweep_hook (bfd *abfd,
2535                         struct bfd_link_info *info,
2536                         asection *sec,
2537                         const Elf_Internal_Rela *relocs)
2538 {
2539   struct elf_cris_link_hash_table * htab;
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   htab = elf_cris_hash_table (info);
2556   if (htab == NULL)
2557     return FALSE;
2558
2559   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2560   sym_hashes = elf_sym_hashes (abfd);
2561   local_got_refcounts = elf_local_got_refcounts (abfd);
2562
2563   sgot = bfd_get_section_by_name (dynobj, ".got");
2564   srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2565
2566   relend = relocs + sec->reloc_count;
2567   for (rel = relocs; rel < relend; rel++)
2568     {
2569       unsigned long r_symndx;
2570       struct elf_link_hash_entry *h = NULL;
2571       bfd_signed_vma got_element_size = 4;
2572       bfd_signed_vma *specific_refcount = NULL;
2573       enum elf_cris_reloc_type r_type;
2574
2575       r_symndx = ELF32_R_SYM (rel->r_info);
2576       if (r_symndx >= symtab_hdr->sh_info)
2577         {
2578           h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2579           while (h->root.type == bfd_link_hash_indirect
2580                  || h->root.type == bfd_link_hash_warning)
2581             h = (struct elf_link_hash_entry *) h->root.u.i.link;
2582         }
2583
2584       r_type = ELF32_R_TYPE (rel->r_info);
2585       switch (r_type)
2586         {
2587         case R_CRIS_32_GOT:
2588         case R_CRIS_16_GOT:
2589         case R_CRIS_16_GOTPLT:
2590         case R_CRIS_32_GOTPLT:
2591           specific_refcount = h != NULL
2592             ? &((struct elf_cris_link_hash_entry *) h)->reg_got_refcount
2593             : &local_got_refcounts[LGOT_REG_NDX (r_symndx)];
2594           break;
2595
2596         case R_CRIS_32_GD:
2597         case R_CRIS_32_GOT_GD:
2598         case R_CRIS_16_GOT_GD:
2599           got_element_size = 8;
2600           specific_refcount = h != NULL
2601             ? &((struct elf_cris_link_hash_entry *) h)->dtp_refcount
2602             : &local_got_refcounts[LGOT_DTP_NDX (r_symndx)];
2603           break;
2604
2605         case R_CRIS_32_IE:
2606         case R_CRIS_16_GOT_TPREL:
2607         case R_CRIS_32_GOT_TPREL:
2608           specific_refcount = h != NULL
2609             ? &((struct elf_cris_link_hash_entry *) h)->tprel_refcount
2610             : &local_got_refcounts[LGOT_TPREL_NDX (r_symndx)];
2611           break;
2612
2613         default:
2614           break;
2615         }
2616
2617       switch (r_type)
2618         {
2619         case R_CRIS_32_IE:
2620         case R_CRIS_32_GD:
2621         case R_CRIS_16_GOT_TPREL:
2622         case R_CRIS_32_GOT_TPREL:
2623         case R_CRIS_32_GOT_GD:
2624         case R_CRIS_16_GOT_GD:
2625         case R_CRIS_16_GOT:
2626         case R_CRIS_32_GOT:
2627           if (h != NULL)
2628             {
2629               /* If the counters are 0 when we got here, we've
2630                  miscounted somehow somewhere, an internal error.  */
2631               BFD_ASSERT (h->got.refcount > 0);
2632               --h->got.refcount;
2633
2634               BFD_ASSERT (*specific_refcount > 0);
2635               --*specific_refcount;
2636               if (*specific_refcount == 0)
2637                 {
2638                   /* We don't need the .got entry any more.  */
2639                   sgot->size -= got_element_size;
2640                   srelgot->size -= sizeof (Elf32_External_Rela);
2641                 }
2642               break;
2643             }
2644
2645         local_got_reloc:
2646           if (local_got_refcounts != NULL)
2647             {
2648               /* If the counters are 0 when we got here, we've
2649                  miscounted somehow somewhere, an internal error.  */
2650               BFD_ASSERT (local_got_refcounts[r_symndx] > 0);
2651               --local_got_refcounts[r_symndx];
2652
2653               BFD_ASSERT (*specific_refcount > 0);
2654               --*specific_refcount;
2655               if (*specific_refcount == 0)
2656                 {
2657                   /* We don't need the .got entry any more.  */
2658                   sgot->size -= got_element_size;
2659                   if (info->shared)
2660                     srelgot->size -= sizeof (Elf32_External_Rela);
2661                 }
2662             }
2663           break;
2664
2665         case R_CRIS_16_GOTPLT:
2666         case R_CRIS_32_GOTPLT:
2667           /* For local symbols, treat these like GOT relocs.  */
2668           if (h == NULL)
2669             goto local_got_reloc;
2670           else
2671             /* For global symbols, adjust the reloc-specific refcount.  */
2672             elf_cris_hash_entry (h)->gotplt_refcount--;
2673           /* Fall through.  */
2674
2675         case R_CRIS_32_PLT_GOTREL:
2676           /* FIXME: We don't garbage-collect away the .got section.  */
2677           if (local_got_refcounts != NULL)
2678             local_got_refcounts[-1]--;
2679           /* Fall through.  */
2680
2681         case R_CRIS_8:
2682         case R_CRIS_16:
2683         case R_CRIS_32:
2684         case R_CRIS_8_PCREL:
2685         case R_CRIS_16_PCREL:
2686         case R_CRIS_32_PCREL:
2687         case R_CRIS_32_PLT_PCREL:
2688           /* Negate the increment we did in cris_elf_check_relocs.  */
2689           if (h != NULL)
2690             {
2691               if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2692                   && h->plt.refcount > 0)
2693                 --h->plt.refcount;
2694             }
2695           break;
2696
2697         case R_CRIS_32_DTPREL:
2698           /* This'd be a .dtpreld entry in e.g. debug info.  */
2699           if ((sec->flags & SEC_ALLOC) == 0)
2700             break;
2701           /* Fall through.  */
2702         case R_CRIS_16_DTPREL:
2703           htab->dtpmod_refcount--;
2704           if (htab->dtpmod_refcount == 0)
2705             htab->next_gotplt_entry -= 8;
2706           BFD_ASSERT (local_got_refcounts != NULL);
2707           local_got_refcounts[-1]--;
2708           break;
2709
2710         default:
2711           break;
2712         }
2713     }
2714
2715   return TRUE;
2716 }
2717
2718 /* The elf_backend_plt_sym_val hook function.  */
2719
2720 static bfd_vma
2721 cris_elf_plt_sym_val (bfd_vma i, const asection *plt,
2722                       const arelent *rel ATTRIBUTE_UNUSED)
2723 {
2724   bfd_size_type plt_entry_size;
2725
2726   plt_entry_size
2727     = (bfd_get_mach (plt->owner) == bfd_mach_cris_v32
2728        ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
2729
2730   return plt->vma + (i + 1) * plt_entry_size;
2731 }
2732
2733 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
2734    entry but we found we will not create any.  Called when we find we will
2735    not have any PLT for this symbol, by for example
2736    elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
2737    or elf_cris_size_dynamic_sections if no dynamic sections will be
2738    created (we're only linking static objects).  */
2739
2740 static bfd_boolean
2741 elf_cris_adjust_gotplt_to_got (h, p)
2742      struct elf_cris_link_hash_entry *h;
2743      PTR p;
2744 {
2745   struct bfd_link_info *info = (struct bfd_link_info *) p;
2746
2747   /* A GOTPLT reloc, when activated, is supposed to be included into
2748      the PLT refcount.  */
2749   BFD_ASSERT (h->gotplt_refcount == 0
2750               || h->gotplt_refcount <= h->root.plt.refcount);
2751
2752   /* If nobody wanted a GOTPLT with this symbol, we're done.  */
2753   if (h->gotplt_refcount <= 0)
2754     return TRUE;
2755
2756   if (h->reg_got_refcount > 0)
2757     {
2758       /* There's a GOT entry for this symbol.  Just adjust the refcounts.
2759          Probably not necessary at this stage, but keeping them accurate
2760          helps avoiding surprises later.  */
2761       h->root.got.refcount += h->gotplt_refcount;
2762       h->reg_got_refcount += h->gotplt_refcount;
2763       h->gotplt_refcount = 0;
2764     }
2765   else
2766     {
2767       /* No GOT entry for this symbol.  We need to create one.  */
2768       bfd *dynobj = elf_hash_table (info)->dynobj;
2769       asection *sgot;
2770       asection *srelgot;
2771
2772       BFD_ASSERT (dynobj != NULL);
2773       sgot = bfd_get_section_by_name (dynobj, ".got");
2774       srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2775
2776       /* Put accurate refcounts there.  */
2777       h->root.got.refcount += h->gotplt_refcount;
2778       h->reg_got_refcount = h->gotplt_refcount;
2779
2780       h->gotplt_refcount = 0;
2781
2782       /* We always have a .got and a .rela.got section if there were
2783          GOTPLT relocs in input.  */
2784       BFD_ASSERT (sgot != NULL && srelgot != NULL);
2785
2786       /* Allocate space in the .got section.  */
2787       sgot->size += 4;
2788
2789       /* Allocate relocation space.  */
2790       srelgot->size += sizeof (Elf32_External_Rela);
2791     }
2792
2793   return TRUE;
2794 }
2795
2796 /* Try to fold PLT entries with GOT entries.  There are two cases when we
2797    want to do this:
2798
2799    - When all PLT references are GOTPLT references, and there are GOT
2800      references, and this is not the executable.  We don't have to
2801      generate a PLT at all.
2802
2803    - When there are both (ordinary) PLT references and GOT references,
2804      and this isn't the executable.
2805      We want to make the PLT reference use the ordinary GOT entry rather
2806      than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
2807      since the GOT entry will have to be resolved at startup anyway.
2808
2809    Though the latter case is handled when room for the PLT is allocated,
2810    not here.
2811
2812    By folding into the GOT, we may need a round-trip to a PLT in the
2813    executable for calls, a loss in performance.  Still, losing a
2814    reloc is a win in size and at least in start-up time.
2815
2816    Note that this function is called before symbols are forced local by
2817    version scripts.  The differing cases are handled by
2818    elf_cris_hide_symbol.  */
2819
2820 static bfd_boolean
2821 elf_cris_try_fold_plt_to_got (h, p)
2822      struct elf_cris_link_hash_entry *h;
2823      PTR p;
2824 {
2825   struct bfd_link_info *info = (struct bfd_link_info *) p;
2826
2827   /* If there are no GOT references for this symbol, we can't fold any
2828      other reference so there's nothing to do.  Likewise if there are no
2829      PLT references; GOTPLT references included.  */
2830   if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
2831     return TRUE;
2832
2833   /* GOTPLT relocs are supposed to be included into the PLT refcount.  */
2834   BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
2835
2836   if (h->gotplt_refcount == h->root.plt.refcount)
2837     {
2838       /* The only PLT references are GOTPLT references, and there are GOT
2839          references.  Convert PLT to GOT references.  */
2840       if (! elf_cris_adjust_gotplt_to_got (h, info))
2841         return FALSE;
2842
2843       /* Clear the PLT references, so no PLT will be created.  */
2844       h->root.plt.offset = (bfd_vma) -1;
2845     }
2846
2847   return TRUE;
2848 }
2849
2850 /* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2851    to use a GOT entry (and create one) rather than requiring a GOTPLT
2852    entry.  */
2853
2854 static void
2855 elf_cris_hide_symbol (info, h, force_local)
2856      struct bfd_link_info *info;
2857      struct elf_link_hash_entry *h;
2858      bfd_boolean force_local;
2859 {
2860   elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
2861
2862   _bfd_elf_link_hash_hide_symbol (info, h, force_local);
2863 }
2864
2865 /* Adjust a symbol defined by a dynamic object and referenced by a
2866    regular object.  The current definition is in some section of the
2867    dynamic object, but we're not including those sections.  We have to
2868    change the definition to something the rest of the link can
2869    understand.  */
2870
2871 static bfd_boolean
2872 elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info,
2873                                 struct elf_link_hash_entry *h)
2874 {
2875   struct elf_cris_link_hash_table * htab;
2876   bfd *dynobj;
2877   asection *s;
2878   bfd_size_type plt_entry_size;
2879
2880   htab = elf_cris_hash_table (info);
2881   if (htab == NULL)
2882     return FALSE;
2883
2884   dynobj = elf_hash_table (info)->dynobj;
2885
2886   /* Make sure we know what is going on here.  */
2887   BFD_ASSERT (dynobj != NULL
2888               && (h->needs_plt
2889                   || h->u.weakdef != NULL
2890                   || (h->def_dynamic
2891                       && h->ref_regular
2892                       && !h->def_regular)));
2893
2894   plt_entry_size
2895     = (bfd_get_mach (dynobj) == bfd_mach_cris_v32
2896        ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
2897
2898   /* If this is a function, put it in the procedure linkage table.  We
2899      will fill in the contents of the procedure linkage table later,
2900      when we know the address of the .got section.  */
2901   if (h->type == STT_FUNC
2902       || h->needs_plt)
2903     {
2904       /* If we link a program (not a DSO), we'll get rid of unnecessary
2905          PLT entries; we point to the actual symbols -- even for pic
2906          relocs, because a program built with -fpic should have the same
2907          result as one built without -fpic, specifically considering weak
2908          symbols.
2909          FIXME: m68k and i386 differ here, for unclear reasons.  */
2910       if (! info->shared
2911           && !h->def_dynamic)
2912         {
2913           /* This case can occur if we saw a PLT reloc in an input file,
2914              but the symbol was not defined by a dynamic object.  In such
2915              a case, we don't actually need to build a procedure linkage
2916              table, and we can just do an absolute or PC reloc instead, or
2917              change a .got.plt index to a .got index for GOTPLT relocs.  */
2918           BFD_ASSERT (h->needs_plt);
2919           h->needs_plt = 0;
2920           h->plt.offset = (bfd_vma) -1;
2921           return
2922             elf_cris_adjust_gotplt_to_got ((struct
2923                                             elf_cris_link_hash_entry *) h,
2924                                            info);
2925         }
2926
2927       /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
2928          where a pointer-equivalent symbol was unimportant (i.e. more
2929          like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
2930          of the PLT.  We can't for the executable, because the GOT
2931          entries will point to the PLT there (and be constant).  */
2932       if (info->shared
2933           && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*)
2934                                             h, info))
2935         return FALSE;
2936
2937       /* GC or folding may have rendered this entry unused.  */
2938       if (h->plt.refcount <= 0)
2939         {
2940           h->needs_plt = 0;
2941           h->plt.offset = (bfd_vma) -1;
2942           return TRUE;
2943         }
2944
2945       /* Make sure this symbol is output as a dynamic symbol.  */
2946       if (h->dynindx == -1)
2947         {
2948           if (! bfd_elf_link_record_dynamic_symbol (info, h))
2949             return FALSE;
2950         }
2951
2952       s = bfd_get_section_by_name (dynobj, ".plt");
2953       BFD_ASSERT (s != NULL);
2954
2955       /* If this is the first .plt entry, make room for the special
2956          first entry.  */
2957       if (s->size == 0)
2958         s->size += plt_entry_size;
2959
2960       /* If this symbol is not defined in a regular file, and we are
2961          not generating a shared library, then set the symbol to this
2962          location in the .plt.  */
2963       if (!info->shared
2964           && !h->def_regular)
2965         {
2966           h->root.u.def.section = s;
2967           h->root.u.def.value = s->size;
2968         }
2969
2970       /* If there's already a GOT entry, use that, not a .got.plt.  A
2971          GOT field still has a reference count when we get here; it's
2972          not yet changed to an offset.  We can't do this for an
2973          executable, because then the reloc associated with the PLT
2974          would get a non-PLT reloc pointing to the PLT.  FIXME: Move
2975          this to elf_cris_try_fold_plt_to_got.  */
2976       if (info->shared && h->got.refcount > 0)
2977         {
2978           h->got.refcount += h->plt.refcount;
2979
2980           /* Mark the PLT offset to use the GOT entry by setting the low
2981              bit in the plt offset; it is always a multiple of
2982              plt_entry_size (which is at least a multiple of 2).  */
2983           BFD_ASSERT ((s->size % plt_entry_size) == 0);
2984
2985           /* Change the PLT refcount to an offset.  */
2986           h->plt.offset = s->size;
2987
2988           /* By not setting gotplt_offset (i.e. it remains at 0), we signal
2989              that the got entry should be used instead.  */
2990           BFD_ASSERT (((struct elf_cris_link_hash_entry *)
2991                        h)->gotplt_offset == 0);
2992
2993           /* Make room for this entry.  */
2994           s->size += plt_entry_size;
2995
2996           return TRUE;
2997         }
2998
2999       /* No GOT reference for this symbol; prepare for an ordinary PLT.  */
3000       h->plt.offset = s->size;
3001
3002       /* Make room for this entry.  */
3003       s->size += plt_entry_size;
3004
3005       /* We also need to make an entry in the .got.plt section, which
3006          will be placed in the .got section by the linker script.  */
3007       ((struct elf_cris_link_hash_entry *) h)->gotplt_offset
3008         = htab->next_gotplt_entry;
3009       htab->next_gotplt_entry += 4;
3010
3011       s = bfd_get_section_by_name (dynobj, ".got.plt");
3012       BFD_ASSERT (s != NULL);
3013       s->size += 4;
3014
3015       /* We also need to make an entry in the .rela.plt section.  */
3016
3017       s = bfd_get_section_by_name (dynobj, ".rela.plt");
3018       BFD_ASSERT (s != NULL);
3019       s->size += sizeof (Elf32_External_Rela);
3020
3021       return TRUE;
3022     }
3023
3024   /* Reinitialize the plt offset now that it is not used as a reference
3025      count any more.  */
3026   h->plt.offset = (bfd_vma) -1;
3027
3028   /* If this is a weak symbol, and there is a real definition, the
3029      processor independent code will have arranged for us to see the
3030      real definition first, and we can just use the same value.  */
3031   if (h->u.weakdef != NULL)
3032     {
3033       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3034                   || h->u.weakdef->root.type == bfd_link_hash_defweak);
3035       h->root.u.def.section = h->u.weakdef->root.u.def.section;
3036       h->root.u.def.value = h->u.weakdef->root.u.def.value;
3037       return TRUE;
3038     }
3039
3040   /* This is a reference to a symbol defined by a dynamic object which
3041      is not a function.  */
3042
3043   /* If we are creating a shared library, we must presume that the
3044      only references to the symbol are via the global offset table.
3045      For such cases we need not do anything here; the relocations will
3046      be handled correctly by relocate_section.  */
3047   if (info->shared)
3048     return TRUE;
3049
3050   /* If there are no references to this symbol that do not use the
3051      GOT, we don't need to generate a copy reloc.  */
3052   if (!h->non_got_ref)
3053     return TRUE;
3054
3055   if (h->size == 0)
3056     {
3057       (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
3058                              h->root.root.string);
3059       return TRUE;
3060     }
3061
3062   /* We must allocate the symbol in our .dynbss section, which will
3063      become part of the .bss section of the executable.  There will be
3064      an entry for this symbol in the .dynsym section.  The dynamic
3065      object will contain position independent code, so all references
3066      from the dynamic object to this symbol will go through the global
3067      offset table.  The dynamic linker will use the .dynsym entry to
3068      determine the address it must put in the global offset table, so
3069      both the dynamic object and the regular object will refer to the
3070      same memory location for the variable.  */
3071
3072   s = bfd_get_section_by_name (dynobj, ".dynbss");
3073   BFD_ASSERT (s != NULL);
3074
3075   /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
3076      copy the initial value out of the dynamic object and into the
3077      runtime process image.  We need to remember the offset into the
3078      .rela.bss section we are going to use.  */
3079   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3080     {
3081       asection *srel;
3082
3083       srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3084       BFD_ASSERT (srel != NULL);
3085       srel->size += sizeof (Elf32_External_Rela);
3086       h->needs_copy = 1;
3087     }
3088
3089   return _bfd_elf_adjust_dynamic_copy (h, s);
3090 }
3091
3092 /* Adjust our "subclass" elements for an indirect symbol.  */
3093
3094 static void
3095 elf_cris_copy_indirect_symbol (struct bfd_link_info *info,
3096                                struct elf_link_hash_entry *dir,
3097                                struct elf_link_hash_entry *ind)
3098 {
3099   struct elf_cris_link_hash_entry *edir, *eind;
3100
3101   edir = (struct elf_cris_link_hash_entry *) dir;
3102   eind = (struct elf_cris_link_hash_entry *) ind;
3103
3104   /* Only indirect symbols are replaced; we're not interested in
3105      updating any of EIND's fields for other symbols.  */
3106   if (eind->root.root.type != bfd_link_hash_indirect)
3107     {
3108       /* Still, we need to copy flags for e.g. weak definitions.  */
3109       _bfd_elf_link_hash_copy_indirect (info, dir, ind);
3110       return;
3111     }
3112
3113   BFD_ASSERT (edir->gotplt_offset == 0 || eind->gotplt_offset == 0);
3114
3115 #define XMOVOPZ(F, OP, Z) edir->F OP eind->F; eind->F = Z
3116 #define XMOVE(F) XMOVOPZ (F, +=, 0)
3117   if (eind->pcrel_relocs_copied != NULL)
3118     {
3119       if (edir->pcrel_relocs_copied != NULL)
3120         {
3121           struct elf_cris_pcrel_relocs_copied **pp;
3122           struct elf_cris_pcrel_relocs_copied *p;
3123
3124           /* Add reloc counts against the indirect sym to the direct sym
3125              list.  Merge any entries against the same section.  */
3126           for (pp = &eind->pcrel_relocs_copied; *pp != NULL;)
3127             {
3128               struct elf_cris_pcrel_relocs_copied *q;
3129               p = *pp;
3130               for (q = edir->pcrel_relocs_copied; q != NULL; q = q->next)
3131                 if (q->section == p->section)
3132                   {
3133                     q->count += p->count;
3134                     *pp = p->next;
3135                     break;
3136                   }
3137               if (q == NULL)
3138                 pp = &p->next;
3139             }
3140           *pp = edir->pcrel_relocs_copied;
3141         }
3142       XMOVOPZ (pcrel_relocs_copied, =, NULL);
3143     }
3144   XMOVE (gotplt_refcount);
3145   XMOVE (gotplt_offset);
3146   XMOVE (reg_got_refcount);
3147   XMOVE (tprel_refcount);
3148   XMOVE (dtp_refcount);
3149 #undef XMOVE
3150 #undef XMOVOPZ
3151
3152   _bfd_elf_link_hash_copy_indirect (info, dir, ind);
3153 }
3154
3155 /* Look through the relocs for a section during the first phase.  */
3156
3157 static bfd_boolean
3158 cris_elf_check_relocs (bfd *abfd,
3159                        struct bfd_link_info *info,
3160                        asection *sec,
3161                        const Elf_Internal_Rela *relocs)
3162 {
3163   struct elf_cris_link_hash_table * htab;
3164   bfd *dynobj;
3165   Elf_Internal_Shdr *symtab_hdr;
3166   struct elf_link_hash_entry **sym_hashes;
3167   bfd_signed_vma *local_got_refcounts;
3168   const Elf_Internal_Rela *rel;
3169   const Elf_Internal_Rela *rel_end;
3170   asection *sgot;
3171   asection *srelgot;
3172   asection *sreloc;
3173
3174   if (info->relocatable)
3175     return TRUE;
3176
3177   htab = elf_cris_hash_table (info);
3178   if (htab == NULL)
3179     return FALSE;
3180
3181   dynobj = elf_hash_table (info)->dynobj;
3182   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3183   sym_hashes = elf_sym_hashes (abfd);
3184   local_got_refcounts = elf_local_got_refcounts (abfd);
3185
3186   sgot = NULL;
3187   srelgot = NULL;
3188   sreloc = NULL;
3189
3190   rel_end = relocs + sec->reloc_count;
3191   for (rel = relocs; rel < rel_end; rel++)
3192     {
3193       struct elf_link_hash_entry *h;
3194       unsigned long r_symndx;
3195       enum elf_cris_reloc_type r_type;
3196       bfd_signed_vma got_element_size = 4;
3197       unsigned long r_symndx_lgot = INT_MAX;
3198
3199       r_symndx = ELF32_R_SYM (rel->r_info);
3200       if (r_symndx < symtab_hdr->sh_info)
3201         {
3202           h = NULL;
3203           r_symndx_lgot = LGOT_REG_NDX (r_symndx);
3204         }
3205       else
3206         {
3207           h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3208           while (h->root.type == bfd_link_hash_indirect
3209                  || h->root.type == bfd_link_hash_warning)
3210             h = (struct elf_link_hash_entry *) h->root.u.i.link;
3211         }
3212
3213       r_type = ELF32_R_TYPE (rel->r_info);
3214
3215       /* Some relocs require linker-created sections; we need to hang them
3216          on the first input bfd we found that contained dynamic relocs.  */
3217       switch (r_type)
3218         {
3219         case R_CRIS_32_DTPREL:
3220           if ((sec->flags & SEC_ALLOC) == 0)
3221             /* This'd be a .dtpreld entry in e.g. debug info.  We have
3222                several different switch statements below, but none of
3223                that is needed; we need no preparations for resolving
3224                R_CRIS_32_DTPREL into a non-allocated section (debug
3225                info), so let's just move on to the next
3226                relocation.  */
3227             continue;
3228           /* Fall through.  */
3229         case R_CRIS_16_DTPREL:
3230           /* The first .got.plt entry is right after the R_CRIS_DTPMOD
3231              entry at index 3. */
3232           if (htab->dtpmod_refcount == 0)
3233             htab->next_gotplt_entry += 8;
3234
3235           htab->dtpmod_refcount++;
3236           /* Fall through.  */
3237
3238         case R_CRIS_32_IE:
3239         case R_CRIS_32_GD:
3240         case R_CRIS_16_GOT_GD:
3241         case R_CRIS_32_GOT_GD:
3242         case R_CRIS_32_GOT_TPREL:
3243         case R_CRIS_16_GOT_TPREL:
3244         case R_CRIS_16_GOT:
3245         case R_CRIS_32_GOT:
3246         case R_CRIS_32_GOTREL:
3247         case R_CRIS_32_PLT_GOTREL:
3248         case R_CRIS_32_PLT_PCREL:
3249         case R_CRIS_16_GOTPLT:
3250         case R_CRIS_32_GOTPLT:
3251           if (dynobj == NULL)
3252             {
3253               elf_hash_table (info)->dynobj = dynobj = abfd;
3254
3255               /* We could handle this if we can get a handle on the
3256                  output bfd in elf_cris_adjust_dynamic_symbol.  Failing
3257                  that, we must insist on dynobj being a specific mach.  */
3258               if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32)
3259                 {
3260                   (*_bfd_error_handler)
3261                     (_("%B, section %A:\n  v10/v32 compatible object %s"
3262                        " must not contain a PIC relocation"),
3263                      abfd, sec);
3264                   return FALSE;
3265                 }
3266
3267               /* Create the .got section, so we can assume it's always
3268                  present whenever there's a dynobj.  */
3269               if (!_bfd_elf_create_got_section (dynobj, info))
3270                 return FALSE;
3271             }
3272
3273           if (sgot == NULL)
3274             sgot = bfd_get_section_by_name (dynobj, ".got");
3275
3276           if (local_got_refcounts == NULL)
3277             {
3278               bfd_size_type amt;
3279
3280               /* We use index local_got_refcounts[-1] to count all
3281                  GOT-relative relocations that do not have explicit
3282                  GOT entries.  */
3283               amt = LGOT_ALLOC_NELTS_FOR (symtab_hdr->sh_info) + 1;
3284               amt *= sizeof (bfd_signed_vma);
3285               local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
3286               if (local_got_refcounts == NULL)
3287                 return FALSE;
3288
3289               local_got_refcounts++;
3290               elf_local_got_refcounts (abfd) = local_got_refcounts;
3291             }
3292           break;
3293
3294         default:
3295           break;
3296         }
3297
3298       /* Some relocs require a global offset table (but perhaps not a
3299          specific GOT entry).  */
3300       switch (r_type)
3301         {
3302         case R_CRIS_16_DTPREL:
3303         case R_CRIS_32_DTPREL:
3304           /* Not requesting .got.rela for an executable: the contents
3305              of the first entry is constant there.  For a shared
3306              library, we need .got.rela for the R_CRIS_DTPMOD
3307              relocation at index 3.  */
3308           if (!info->shared)
3309             break;
3310           /* Fall through.  */
3311
3312         case R_CRIS_32_IE:
3313         case R_CRIS_32_GD:
3314         case R_CRIS_16_GOT_GD:
3315         case R_CRIS_32_GOT_GD:
3316         case R_CRIS_32_GOT_TPREL:
3317         case R_CRIS_16_GOT_TPREL:
3318           /* Fall through.  */
3319
3320           /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
3321              entry only for local symbols.  Unfortunately, we don't know
3322              until later on if there's a version script that forces the
3323              symbol local.  We must have the .rela.got section in place
3324              before we know if the symbol looks global now, so we need
3325              to treat the reloc just like for R_CRIS_16_GOT and
3326              R_CRIS_32_GOT.  */
3327         case R_CRIS_16_GOTPLT:
3328         case R_CRIS_32_GOTPLT:
3329         case R_CRIS_16_GOT:
3330         case R_CRIS_32_GOT:
3331           if (srelgot == NULL
3332               && (h != NULL || info->shared))
3333             {
3334               srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
3335               if (srelgot == NULL)
3336                 {
3337                   srelgot = bfd_make_section_with_flags (dynobj,
3338                                                          ".rela.got",
3339                                                          (SEC_ALLOC
3340                                                           | SEC_LOAD
3341                                                           | SEC_HAS_CONTENTS
3342                                                           | SEC_IN_MEMORY
3343                                                           | SEC_LINKER_CREATED
3344                                                           | SEC_READONLY));
3345                   if (srelgot == NULL
3346                       || !bfd_set_section_alignment (dynobj, srelgot, 2))
3347                     return FALSE;
3348                 }
3349             }
3350           break;
3351
3352         default:
3353           break;
3354         }
3355
3356       /* Warn and error for invalid input.  */
3357       switch (r_type)
3358         {
3359         case R_CRIS_32_IE:
3360         case R_CRIS_32_TPREL:
3361         case R_CRIS_16_TPREL:
3362         case R_CRIS_32_GD:
3363           if (info->shared)
3364             {
3365               (*_bfd_error_handler)
3366                 (_("%B, section %A:\n  relocation %s not valid"
3367                    " in a shared object;"
3368                    " typically an option mixup, recompile with -fPIC"),
3369                  abfd,
3370                  sec,
3371                  cris_elf_howto_table[r_type].name);
3372               /* Don't return FALSE here; we want messages for all of
3373                  these and the error behavior is ungraceful
3374                  anyway.  */
3375             }
3376         default:
3377           break;
3378         }
3379
3380       switch (r_type)
3381         {
3382         case R_CRIS_32_GD:
3383         case R_CRIS_16_GOT_GD:
3384         case R_CRIS_32_GOT_GD:
3385           /* These are requests for tls_index entries, run-time R_CRIS_DTP.  */
3386           got_element_size = 8;
3387           r_symndx_lgot = LGOT_DTP_NDX (r_symndx);
3388           break;
3389
3390         case R_CRIS_16_DTPREL:
3391         case R_CRIS_32_DTPREL:
3392           /* These two just request for the constant-index
3393              module-local tls_index-sized GOT entry, which we add
3394              elsewhere.  */
3395           break;
3396
3397         case R_CRIS_32_IE:
3398         case R_CRIS_32_GOT_TPREL:
3399         case R_CRIS_16_GOT_TPREL:
3400           r_symndx_lgot = LGOT_TPREL_NDX (r_symndx);
3401
3402           /* Those relocs also require that a DSO is of type
3403              Initial Exec.  Like other targets, we don't reset this
3404              flag even if the relocs are GC:ed away.  */
3405           if (info->shared)
3406             info->flags |= DF_STATIC_TLS;
3407           break;
3408
3409           /* Let's list the other assembler-generated TLS-relocs too,
3410              just to show that they're not forgotten. */
3411         case R_CRIS_16_TPREL:
3412         case R_CRIS_32_TPREL:
3413         default:
3414           break;
3415         }
3416
3417       switch (r_type)
3418         {
3419         case R_CRIS_16_GOTPLT:
3420         case R_CRIS_32_GOTPLT:
3421           /* Mark that we need a GOT entry if the PLT entry (and its GOT
3422              entry) is eliminated.  We can only do this for a non-local
3423              symbol.  */
3424           if (h != NULL)
3425             {
3426               elf_cris_hash_entry (h)->gotplt_refcount++;
3427               goto handle_gotplt_reloc;
3428             }
3429           /* If h is NULL then this is a local symbol, and we must make a
3430              GOT entry for it, so handle it like a GOT reloc.  */
3431           /* Fall through.  */
3432
3433         case R_CRIS_32_IE:
3434         case R_CRIS_32_GD:
3435         case R_CRIS_16_GOT_GD:
3436         case R_CRIS_32_GOT_GD:
3437         case R_CRIS_32_GOT_TPREL:
3438         case R_CRIS_16_GOT_TPREL:
3439         case R_CRIS_16_GOT:
3440         case R_CRIS_32_GOT:
3441           /* This symbol requires a global offset table entry.  */
3442           if (h != NULL)
3443             {
3444               if (h->got.refcount == 0)
3445                 {
3446                   /* Make sure this symbol is output as a dynamic symbol.  */
3447                   if (h->dynindx == -1)
3448                     {
3449                       if (!bfd_elf_link_record_dynamic_symbol (info, h))
3450                         return FALSE;
3451                     }
3452                 }
3453
3454               /* Update the sum of reloc counts for this symbol.  */
3455               h->got.refcount++;
3456
3457               switch (r_type)
3458                 {
3459                 case R_CRIS_16_GOT:
3460                 case R_CRIS_32_GOT:
3461                   if (elf_cris_hash_entry (h)->reg_got_refcount == 0)
3462                     {
3463                       /* Allocate space in the .got section.  */
3464                       sgot->size += got_element_size;
3465                       /* Allocate relocation space.  */
3466                       srelgot->size += sizeof (Elf32_External_Rela);
3467                     }
3468                   elf_cris_hash_entry (h)->reg_got_refcount++;
3469                   break;
3470
3471                 case R_CRIS_32_GD:
3472                 case R_CRIS_16_GOT_GD:
3473                 case R_CRIS_32_GOT_GD:
3474                   if (elf_cris_hash_entry (h)->dtp_refcount == 0)
3475                     {
3476                       /* Allocate space in the .got section.  */
3477                       sgot->size += got_element_size;
3478                       /* Allocate relocation space.  */
3479                       srelgot->size += sizeof (Elf32_External_Rela);
3480                     }
3481                   elf_cris_hash_entry (h)->dtp_refcount++;
3482                   break;
3483
3484                 case R_CRIS_32_IE:
3485                 case R_CRIS_32_GOT_TPREL:
3486                 case R_CRIS_16_GOT_TPREL:
3487                   if (elf_cris_hash_entry (h)->tprel_refcount == 0)
3488                     {
3489                       /* Allocate space in the .got section.  */
3490                       sgot->size += got_element_size;
3491                       /* Allocate relocation space.  */
3492                       srelgot->size += sizeof (Elf32_External_Rela);
3493                     }
3494                   elf_cris_hash_entry (h)->tprel_refcount++;
3495                   break;
3496
3497                 default:
3498                   BFD_FAIL ();
3499                   break;
3500                 }
3501             }
3502           else
3503             {
3504               /* This is a global offset table entry for a local symbol.  */
3505               if (local_got_refcounts[r_symndx_lgot] == 0)
3506                 {
3507                   sgot->size += got_element_size;
3508                   if (info->shared)
3509                     {
3510                       /* If we are generating a shared object, we need
3511                          to output a R_CRIS_RELATIVE reloc so that the
3512                          dynamic linker can adjust this GOT entry.
3513                          Similarly for non-regular got entries.  */
3514                       srelgot->size += sizeof (Elf32_External_Rela);
3515                     }
3516                 }
3517               /* Update the reloc-specific count.  */
3518               local_got_refcounts[r_symndx_lgot]++;
3519
3520               /* This one is the sum of all the others.  */
3521               local_got_refcounts[r_symndx]++;
3522             }
3523           break;
3524
3525         case R_CRIS_16_DTPREL:
3526         case R_CRIS_32_DTPREL:
3527         case R_CRIS_32_GOTREL:
3528           /* This reference requires a global offset table.
3529              FIXME: The actual refcount isn't used currently; the .got
3530              section can't be removed if there were any references in the
3531              input.  */
3532           local_got_refcounts[-1]++;
3533           break;
3534
3535         handle_gotplt_reloc:
3536
3537         case R_CRIS_32_PLT_GOTREL:
3538           /* This reference requires a global offset table.  */
3539           local_got_refcounts[-1]++;
3540           /* Fall through.  */
3541
3542         case R_CRIS_32_PLT_PCREL:
3543           /* This symbol requires a procedure linkage table entry.  We
3544              actually build the entry in adjust_dynamic_symbol,
3545              because this might be a case of linking PIC code which is
3546              never referenced by a dynamic object, in which case we
3547              don't need to generate a procedure linkage table entry
3548              after all.  */
3549
3550           /* Beware: if we'd check for visibility of the symbol here
3551              (and not marking the need for a PLT when non-visible), we'd
3552              get into trouble with keeping handling consistent with
3553              regards to relocs found before definition and GOTPLT
3554              handling.  Eliminable PLT entries will be dealt with later
3555              anyway.  */
3556           if (h == NULL)
3557             continue;
3558
3559           h->needs_plt = 1;
3560           h->plt.refcount++;
3561           break;
3562
3563         case R_CRIS_8:
3564         case R_CRIS_16:
3565         case R_CRIS_32:
3566           /* Let's help debug shared library creation.  Any of these
3567              relocs *can* be used in shared libs, but pages containing
3568              them cannot be shared, so they're not appropriate for
3569              common use.  Don't warn for sections we don't care about,
3570              such as debug sections or non-constant sections.  We
3571              can't help tables of (global) function pointers, for
3572              example, though they must be emitted in a (writable) data
3573              section to avoid having impure text sections.  */
3574           if (info->shared
3575               && (sec->flags & SEC_ALLOC) != 0
3576               && (sec->flags & SEC_READONLY) != 0)
3577             {
3578               /* FIXME: How do we make this optionally a warning only?  */
3579               (*_bfd_error_handler)
3580                 (_("%B, section %A:\n  relocation %s should not"
3581                    " be used in a shared object; recompile with -fPIC"),
3582                  abfd,
3583                  sec,
3584                  cris_elf_howto_table[r_type].name);
3585             }
3586           if (h != NULL)
3587             {
3588               h->non_got_ref = 1;
3589
3590               /* Make sure a plt entry is created for this symbol if it
3591                  turns out to be a function defined by a dynamic object.  */
3592               if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
3593                 h->plt.refcount++;
3594             }
3595
3596           /* If we are creating a shared library and this is not a local
3597              symbol, we need to copy the reloc into the shared library.
3598              However when linking with -Bsymbolic and this is a global
3599              symbol which is defined in an object we are including in the
3600              link (i.e., DEF_REGULAR is set), then we can resolve the
3601              reloc directly.  At this point we have not seen all the input
3602              files, so it is possible that DEF_REGULAR is not set now but
3603              will be set later (it is never cleared).  In case of a weak
3604              definition, DEF_REGULAR may be cleared later by a strong
3605              definition in a shared library.  We account for that
3606              possibility below by storing information in the relocs_copied
3607              field of the hash table entry.  A similar situation occurs
3608              when creating shared libraries and symbol visibility changes
3609              render the symbol local.  */
3610
3611           /* No need to do anything if we're not creating a shared object.  */
3612           if (! info->shared)
3613             break;
3614
3615           /* We don't need to handle relocs into sections not going into
3616              the "real" output.  */
3617           if ((sec->flags & SEC_ALLOC) == 0)
3618             break;
3619
3620           /* We may need to create a reloc section in the dynobj and made room
3621              for this reloc.  */
3622           if (sreloc == NULL)
3623             {
3624               sreloc = _bfd_elf_make_dynamic_reloc_section
3625                 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3626
3627               if (sreloc == NULL)
3628                 return FALSE;
3629             }
3630
3631           if (sec->flags & SEC_READONLY)
3632             info->flags |= DF_TEXTREL;
3633
3634           sreloc->size += sizeof (Elf32_External_Rela);
3635           break;
3636
3637         case R_CRIS_8_PCREL:
3638         case R_CRIS_16_PCREL:
3639         case R_CRIS_32_PCREL:
3640           if (h != NULL)
3641             {
3642               h->non_got_ref = 1;
3643
3644               /* Make sure a plt entry is created for this symbol if it
3645                  turns out to be a function defined by a dynamic object.  */
3646               if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
3647                 h->plt.refcount++;
3648             }
3649
3650           /* If we are creating a shared library and this is not a local
3651              symbol, we need to copy the reloc into the shared library.
3652              However when linking with -Bsymbolic and this is a global
3653              symbol which is defined in an object we are including in the
3654              link (i.e., DEF_REGULAR is set), then we can resolve the
3655              reloc directly.  At this point we have not seen all the input
3656              files, so it is possible that DEF_REGULAR is not set now but
3657              will be set later (it is never cleared).  In case of a weak
3658              definition, DEF_REGULAR may be cleared later by a strong
3659              definition in a shared library.  We account for that
3660              possibility below by storing information in the relocs_copied
3661              field of the hash table entry.  A similar situation occurs
3662              when creating shared libraries and symbol visibility changes
3663              render the symbol local.  */
3664
3665           /* No need to do anything if we're not creating a shared object.  */
3666           if (! info->shared)
3667             break;
3668
3669           /* We don't need to handle relocs into sections not going into
3670              the "real" output.  */
3671           if ((sec->flags & SEC_ALLOC) == 0)
3672             break;
3673
3674           /* If the symbol is local, then we know already we can
3675              eliminate the reloc.  */
3676           if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3677             break;
3678
3679           /* If this is with -Bsymbolic and the symbol isn't weak, and
3680              is defined by an ordinary object (the ones we include in
3681              this shared library) then we can also eliminate the
3682              reloc.  See comment above for more eliminable cases which
3683              we can't identify at this time.  */
3684           if (info->symbolic
3685               && h->root.type != bfd_link_hash_defweak
3686               && h->def_regular)
3687             break;
3688
3689           /* We may need to create a reloc section in the dynobj and made room
3690              for this reloc.  */
3691           if (sreloc == NULL)
3692             {
3693               sreloc = _bfd_elf_make_dynamic_reloc_section
3694                 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3695
3696               if (sreloc == NULL)
3697                 return FALSE;
3698             }
3699
3700           sreloc->size += sizeof (Elf32_External_Rela);
3701
3702           /* We count the number of PC relative relocations we have
3703              entered for this symbol, so that we can discard them
3704              again if the symbol is later defined by a regular object.
3705              We know that h is really a pointer to an
3706              elf_cris_link_hash_entry.  */
3707           {
3708             struct elf_cris_link_hash_entry *eh;
3709             struct elf_cris_pcrel_relocs_copied *p;
3710
3711             eh = elf_cris_hash_entry (h);
3712
3713             for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
3714               if (p->section == sec)
3715                 break;
3716
3717             if (p == NULL)
3718               {
3719                 p = ((struct elf_cris_pcrel_relocs_copied *)
3720                      bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
3721                 if (p == NULL)
3722                   return FALSE;
3723                 p->next = eh->pcrel_relocs_copied;
3724                 eh->pcrel_relocs_copied = p;
3725                 p->section = sec;
3726                 p->count = 0;
3727                 p->r_type = r_type;
3728               }
3729
3730             ++p->count;
3731           }
3732           break;
3733
3734         /* This relocation describes the C++ object vtable hierarchy.
3735            Reconstruct it for later use during GC.  */
3736         case R_CRIS_GNU_VTINHERIT:
3737           if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3738             return FALSE;
3739           break;
3740
3741         /* This relocation describes which C++ vtable entries are actually
3742            used.  Record for later use during GC.  */
3743         case R_CRIS_GNU_VTENTRY:
3744           BFD_ASSERT (h != NULL);
3745           if (h != NULL
3746               && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3747             return FALSE;
3748           break;
3749
3750         case R_CRIS_16_TPREL:
3751         case R_CRIS_32_TPREL:
3752           /* Already warned above, when necessary.  */
3753           break;
3754
3755         default:
3756           /* Other relocs do not appear here.  */
3757           bfd_set_error (bfd_error_bad_value);
3758           return FALSE;
3759         }
3760     }
3761
3762   return TRUE;
3763 }
3764
3765 /* Set the sizes of the dynamic sections.  */
3766
3767 static bfd_boolean
3768 elf_cris_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3769                                 struct bfd_link_info *info)
3770 {
3771   struct elf_cris_link_hash_table * htab;
3772   bfd *dynobj;
3773   asection *s;
3774   bfd_boolean plt;
3775   bfd_boolean relocs;
3776
3777   htab = elf_cris_hash_table (info);
3778   if (htab == NULL)
3779     return FALSE;
3780
3781   dynobj = elf_hash_table (info)->dynobj;
3782   BFD_ASSERT (dynobj != NULL);
3783
3784   if (elf_hash_table (info)->dynamic_sections_created)
3785     {
3786       /* Set the contents of the .interp section to the interpreter.  */
3787       if (info->executable)
3788         {
3789           s = bfd_get_section_by_name (dynobj, ".interp");
3790           BFD_ASSERT (s != NULL);
3791           s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3792           s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3793         }
3794     }
3795   else
3796     {
3797       /* Adjust all expected GOTPLT uses to use a GOT entry instead.  */
3798       elf_cris_link_hash_traverse (htab, elf_cris_adjust_gotplt_to_got,
3799                                    info);
3800
3801       /* We may have created entries in the .rela.got section.
3802          However, if we are not creating the dynamic sections, we will
3803          not actually use these entries.  Reset the size of .rela.got,
3804          which will cause it to get stripped from the output file
3805          below.  */
3806       s = bfd_get_section_by_name (dynobj, ".rela.got");
3807       if (s != NULL)
3808         s->size = 0;
3809     }
3810
3811   /* If this is a -Bsymbolic shared link, then we need to discard all PC
3812      relative relocs against symbols defined in a regular object.  We
3813      allocated space for them in the check_relocs routine, but we will not
3814      fill them in in the relocate_section routine.  We also discard space
3815      for relocs that have become for local symbols due to symbol
3816      visibility changes.  For programs, we discard space for relocs for
3817      symbols not referenced by any dynamic object.  */
3818   if (info->shared)
3819     elf_cris_link_hash_traverse (htab,
3820                                  elf_cris_discard_excess_dso_dynamics,
3821                                  info);
3822   else
3823     elf_cris_link_hash_traverse (htab,
3824                                  elf_cris_discard_excess_program_dynamics,
3825                                  info);
3826
3827   /* The check_relocs and adjust_dynamic_symbol entry points have
3828      determined the sizes of the various dynamic sections.  Allocate
3829      memory for them.  */
3830   plt = FALSE;
3831   relocs = FALSE;
3832   for (s = dynobj->sections; s != NULL; s = s->next)
3833     {
3834       const char *name;
3835
3836       if ((s->flags & SEC_LINKER_CREATED) == 0)
3837         continue;
3838
3839       /* It's OK to base decisions on the section name, because none
3840          of the dynobj section names depend upon the input files.  */
3841       name = bfd_get_section_name (dynobj, s);
3842
3843       if (strcmp (name, ".plt") == 0)
3844         {
3845           /* Remember whether there is a PLT.  */
3846           plt = s->size != 0;
3847         }
3848       else if (strcmp (name, ".got.plt") == 0)
3849         {
3850           /* The .got.plt contains the .got header as well as the
3851              actual .got.plt contents.  The .got header may contain a
3852              R_CRIS_DTPMOD entry at index 3.  */
3853           s->size += htab->dtpmod_refcount != 0
3854             ? 8 : 0;
3855         }
3856       else if (CONST_STRNEQ (name, ".rela"))
3857         {
3858           if (strcmp (name, ".rela.got") == 0
3859               && htab->dtpmod_refcount != 0
3860               && info->shared)
3861             s->size += sizeof (Elf32_External_Rela);
3862
3863           if (s->size != 0)
3864             {
3865               /* Remember whether there are any reloc sections other
3866                  than .rela.plt.  */
3867               if (strcmp (name, ".rela.plt") != 0)
3868                   relocs = TRUE;
3869
3870               /* We use the reloc_count field as a counter if we need
3871                  to copy relocs into the output file.  */
3872               s->reloc_count = 0;
3873             }
3874         }
3875       else if (! CONST_STRNEQ (name, ".got")
3876                && strcmp (name, ".dynbss") != 0)
3877         {
3878           /* It's not one of our sections, so don't allocate space.  */
3879           continue;
3880         }
3881
3882       if (s->size == 0)
3883         {
3884           /* If we don't need this section, strip it from the
3885              output file.  This is mostly to handle .rela.bss and
3886              .rela.plt.  We must create both sections in
3887              create_dynamic_sections, because they must be created
3888              before the linker maps input sections to output
3889              sections.  The linker does that before
3890              adjust_dynamic_symbol is called, and it is that
3891              function which decides whether anything needs to go
3892              into these sections.  */
3893           s->flags |= SEC_EXCLUDE;
3894           continue;
3895         }
3896
3897       if ((s->flags & SEC_HAS_CONTENTS) == 0)
3898         continue;
3899
3900       /* Allocate memory for the section contents. We use bfd_zalloc here
3901          in case unused entries are not reclaimed before the section's
3902          contents are written out.  This should not happen, but this way
3903          if it does, we will not write out garbage.  For reloc sections,
3904          this will make entries have the type R_CRIS_NONE.  */
3905       s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3906       if (s->contents == NULL)
3907         return FALSE;
3908     }
3909
3910   if (elf_hash_table (info)->dynamic_sections_created)
3911     {
3912       /* Add some entries to the .dynamic section.  We fill in the
3913          values later, in elf_cris_finish_dynamic_sections, but we
3914          must add the entries now so that we get the correct size for
3915          the .dynamic section.  The DT_DEBUG entry is filled in by the
3916          dynamic linker and used by the debugger.  */
3917 #define add_dynamic_entry(TAG, VAL) \
3918   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3919
3920       if (!info->shared)
3921         {
3922           if (!add_dynamic_entry (DT_DEBUG, 0))
3923             return FALSE;
3924         }
3925
3926       if (plt)
3927         {
3928           if (!add_dynamic_entry (DT_PLTGOT, 0)
3929               || !add_dynamic_entry (DT_PLTRELSZ, 0)
3930               || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3931               || !add_dynamic_entry (DT_JMPREL, 0))
3932             return FALSE;
3933         }
3934
3935       if (relocs)
3936         {
3937           if (!add_dynamic_entry (DT_RELA, 0)
3938               || !add_dynamic_entry (DT_RELASZ, 0)
3939               || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
3940             return FALSE;
3941         }
3942
3943       if ((info->flags & DF_TEXTREL) != 0)
3944         {
3945           if (!add_dynamic_entry (DT_TEXTREL, 0))
3946             return FALSE;
3947           info->flags |= DF_TEXTREL;
3948         }
3949     }
3950 #undef add_dynamic_entry
3951
3952   return TRUE;
3953 }
3954
3955 /* This function is called via elf_cris_link_hash_traverse if we are
3956    creating a shared object.  In the -Bsymbolic case, it discards the
3957    space allocated to copy PC relative relocs against symbols which
3958    are defined in regular objects.  For the normal non-symbolic case,
3959    we also discard space for relocs that have become local due to
3960    symbol visibility changes.  We allocated space for them in the
3961    check_relocs routine, but we won't fill them in in the
3962    relocate_section routine.  */
3963
3964 static bfd_boolean
3965 elf_cris_discard_excess_dso_dynamics (h, inf)
3966      struct elf_cris_link_hash_entry *h;
3967      PTR inf;
3968 {
3969   struct elf_cris_pcrel_relocs_copied *s;
3970   struct bfd_link_info *info = (struct bfd_link_info *) inf;
3971
3972   /* If a symbol has been forced local or we have found a regular
3973      definition for the symbolic link case, then we won't be needing
3974      any relocs.  */
3975   if (h->root.def_regular
3976       && (h->root.forced_local
3977           || info->symbolic))
3978     {
3979       for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3980         {
3981           asection *sreloc
3982             = _bfd_elf_get_dynamic_reloc_section (elf_hash_table (info)
3983                                                   ->dynobj,
3984                                                   s->section,
3985                                                   /*rela?*/ TRUE);
3986           sreloc->size -= s->count * sizeof (Elf32_External_Rela);
3987         }
3988       return TRUE;
3989     }
3990
3991   /* If we have accounted for PC-relative relocs for read-only
3992      sections, now is the time to warn for them.  We can't do it in
3993      cris_elf_check_relocs, because we don't know the status of all
3994      symbols at that time (and it's common to force symbols local
3995      late).  */
3996
3997   for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3998     if ((s->section->flags & SEC_READONLY) != 0)
3999       {
4000         /* FIXME: How do we make this optionally a warning only?  */
4001         (*_bfd_error_handler)
4002           (_("%B, section `%A', to symbol `%s':\n"
4003              "  relocation %s should not be used"
4004              " in a shared object; recompile with -fPIC"),
4005            s->section->owner,
4006            s->section,
4007            h->root.root.root.string,
4008            cris_elf_howto_table[s->r_type].name);
4009
4010         info->flags |= DF_TEXTREL;
4011       }
4012
4013   return TRUE;
4014 }
4015
4016 /* This function is called via elf_cris_link_hash_traverse if we are *not*
4017    creating a shared object.  We discard space for relocs for symbols put
4018    in the .got, but which we found we do not have to resolve at run-time.  */
4019
4020 static bfd_boolean
4021 elf_cris_discard_excess_program_dynamics (h, inf)
4022      struct elf_cris_link_hash_entry *h;
4023      PTR inf;
4024 {
4025   struct bfd_link_info *info = (struct bfd_link_info *) inf;
4026
4027   /* If we're not creating a shared library and have a symbol which is
4028      referred to by .got references, but the symbol is defined locally,
4029      (or rather, not defined by a DSO) then lose the reloc for the .got
4030      (don't allocate room for it).  Likewise for relocs for something
4031      for which we create a PLT.  */
4032   if (!h->root.def_dynamic
4033       || h->root.plt.refcount > 0)
4034     {
4035       if (h->reg_got_refcount > 0
4036           /* The size of this section is only valid and in sync with the
4037              various reference counts if we do dynamic; don't decrement it
4038              otherwise.  */
4039           && elf_hash_table (info)->dynamic_sections_created)
4040         {
4041           bfd *dynobj = elf_hash_table (info)->dynobj;
4042           asection *srelgot;
4043
4044           BFD_ASSERT (dynobj != NULL);
4045
4046           srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
4047
4048           BFD_ASSERT (srelgot != NULL);
4049
4050           srelgot->size -= sizeof (Elf32_External_Rela);
4051         }
4052
4053       /* If the locally-defined symbol isn't used by a DSO, then we don't
4054          have to export it as a dynamic symbol.  This was already done for
4055          functions; doing this for all symbols would presumably not
4056          introduce new problems.  Of course we don't do this if we're
4057          exporting all dynamic symbols.  */
4058       if (! info->export_dynamic
4059           && h->root.dynindx != -1
4060           && !h->root.def_dynamic
4061           && !h->root.ref_dynamic)
4062         {
4063           h->root.dynindx = -1;
4064           _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
4065                                   h->root.dynstr_index);
4066         }
4067     }
4068
4069   return TRUE;
4070 }
4071
4072 /* Reject a file depending on presence and expectation of prefixed
4073    underscores on symbols.  */
4074
4075 static bfd_boolean
4076 cris_elf_object_p (abfd)
4077      bfd *abfd;
4078 {
4079   if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags))
4080     return FALSE;
4081
4082   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
4083     return (bfd_get_symbol_leading_char (abfd) == '_');
4084   else
4085     return (bfd_get_symbol_leading_char (abfd) == 0);
4086 }
4087
4088 /* Mark presence or absence of leading underscore.  Set machine type
4089    flags from mach type.  */
4090
4091 static void
4092 cris_elf_final_write_processing (abfd, linker)
4093      bfd *abfd;
4094      bfd_boolean linker ATTRIBUTE_UNUSED;
4095 {
4096   unsigned long e_flags = elf_elfheader (abfd)->e_flags;
4097
4098   e_flags &= ~EF_CRIS_UNDERSCORE;
4099   if (bfd_get_symbol_leading_char (abfd) == '_')
4100     e_flags |= EF_CRIS_UNDERSCORE;
4101
4102   switch (bfd_get_mach (abfd))
4103     {
4104     case bfd_mach_cris_v0_v10:
4105       e_flags |= EF_CRIS_VARIANT_ANY_V0_V10;
4106       break;
4107
4108     case bfd_mach_cris_v10_v32:
4109       e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32;
4110       break;
4111
4112     case bfd_mach_cris_v32:
4113       e_flags |= EF_CRIS_VARIANT_V32;
4114       break;
4115
4116     default:
4117       _bfd_abort (__FILE__, __LINE__,
4118                   _("Unexpected machine number"));
4119     }
4120
4121   elf_elfheader (abfd)->e_flags = e_flags;
4122 }
4123
4124 /* Set the mach type from e_flags value.  */
4125
4126 static bfd_boolean
4127 cris_elf_set_mach_from_flags (abfd, flags)
4128      bfd *abfd;
4129      unsigned long flags;
4130 {
4131   switch (flags & EF_CRIS_VARIANT_MASK)
4132     {
4133     case EF_CRIS_VARIANT_ANY_V0_V10:
4134       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10);
4135       break;
4136
4137     case EF_CRIS_VARIANT_V32:
4138       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32);
4139       break;
4140
4141     case EF_CRIS_VARIANT_COMMON_V10_V32:
4142       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32);
4143       break;
4144
4145     default:
4146       /* Since we don't recognize them, we obviously can't support them
4147          with this code; we'd have to require that all future handling
4148          would be optional.  */
4149       bfd_set_error (bfd_error_wrong_format);
4150       return FALSE;
4151     }
4152
4153   return TRUE;
4154 }
4155
4156 /* Display the flags field.  */
4157
4158 static bfd_boolean
4159 cris_elf_print_private_bfd_data (abfd, ptr)
4160      bfd *abfd;
4161      PTR ptr;
4162 {
4163   FILE *file = (FILE *) ptr;
4164
4165   BFD_ASSERT (abfd != NULL && ptr != NULL);
4166
4167   _bfd_elf_print_private_bfd_data (abfd, ptr);
4168
4169   fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
4170
4171   if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
4172     fprintf (file, _(" [symbols have a _ prefix]"));
4173   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
4174       == EF_CRIS_VARIANT_COMMON_V10_V32)
4175     fprintf (file, _(" [v10 and v32]"));
4176   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
4177       == EF_CRIS_VARIANT_V32)
4178     fprintf (file, _(" [v32]"));
4179
4180   fputc ('\n', file);
4181   return TRUE;
4182 }
4183
4184 /* Don't mix files with and without a leading underscore.  */
4185
4186 static bfd_boolean
4187 cris_elf_merge_private_bfd_data (ibfd, obfd)
4188      bfd *ibfd;
4189      bfd *obfd;
4190 {
4191   int imach, omach;
4192
4193   if (! _bfd_generic_verify_endian_match (ibfd, obfd))
4194     return FALSE;
4195
4196   if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4197       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4198     return TRUE;
4199
4200   imach = bfd_get_mach (ibfd);
4201
4202   if (! elf_flags_init (obfd))
4203     {
4204       /* This happens when ld starts out with a 'blank' output file.  */
4205       elf_flags_init (obfd) = TRUE;
4206
4207       /* We ignore the linker-set mach, and instead set it according to
4208          the first input file.  This would also happen if we could
4209          somehow filter out the OUTPUT_ARCH () setting from elf.sc.
4210          This allows us to keep the same linker config across
4211          cris(v0..v10) and crisv32.  The drawback is that we can't force
4212          the output type, which might be a sane thing to do for a
4213          v10+v32 compatibility object.  */
4214       if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
4215         return FALSE;
4216     }
4217
4218   if (bfd_get_symbol_leading_char (ibfd)
4219       != bfd_get_symbol_leading_char (obfd))
4220     {
4221       (*_bfd_error_handler)
4222         (bfd_get_symbol_leading_char (ibfd) == '_'
4223          ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
4224          : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
4225          ibfd);
4226       bfd_set_error (bfd_error_bad_value);
4227       return FALSE;
4228     }
4229
4230   omach = bfd_get_mach (obfd);
4231
4232   if (imach != omach)
4233     {
4234       /* We can get an incompatible combination only if either is
4235          bfd_mach_cris_v32, and the other one isn't compatible.  */
4236       if ((imach == bfd_mach_cris_v32
4237            && omach != bfd_mach_cris_v10_v32)
4238           || (omach == bfd_mach_cris_v32
4239               && imach != bfd_mach_cris_v10_v32))
4240         {
4241           (*_bfd_error_handler)
4242             ((imach == bfd_mach_cris_v32)
4243              ? _("%B contains CRIS v32 code, incompatible"
4244                  " with previous objects")
4245              : _("%B contains non-CRIS-v32 code, incompatible"
4246                  " with previous objects"),
4247              ibfd);
4248           bfd_set_error (bfd_error_bad_value);
4249           return FALSE;
4250         }
4251
4252       /* We don't have to check the case where the input is compatible
4253          with v10 and v32, because the output is already known to be set
4254          to the other (compatible) mach.  */
4255       if (omach == bfd_mach_cris_v10_v32
4256           && ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
4257         return FALSE;
4258     }
4259
4260   return TRUE;
4261 }
4262
4263 /* Do side-effects of e_flags copying to obfd.  */
4264
4265 static bfd_boolean
4266 cris_elf_copy_private_bfd_data (ibfd, obfd)
4267      bfd *ibfd;
4268      bfd *obfd;
4269 {
4270   /* Call the base function.  */
4271   if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd))
4272     return FALSE;
4273
4274   /* If output is big-endian for some obscure reason, stop here.  */
4275   if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
4276     return FALSE;
4277
4278   if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4279       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4280     return TRUE;
4281
4282   /* Do what we really came here for.  */
4283   return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd));
4284 }
4285
4286 static enum elf_reloc_type_class
4287 elf_cris_reloc_type_class (rela)
4288      const Elf_Internal_Rela *rela;
4289 {
4290   enum elf_cris_reloc_type r_type = ELF32_R_TYPE (rela->r_info);
4291   switch (r_type)
4292     {
4293     case R_CRIS_RELATIVE:
4294       return reloc_class_relative;
4295     case R_CRIS_JUMP_SLOT:
4296       return reloc_class_plt;
4297     case R_CRIS_COPY:
4298       return reloc_class_copy;
4299     default:
4300       return reloc_class_normal;
4301     }
4302 }
4303
4304 /* The elf_backend_got_elt_size worker.  For one symbol, we can have up to
4305    two GOT entries from three types with two different sizes.  We handle
4306    it as a single entry, so we can use the regular offset-calculation
4307    machinery.  */
4308
4309 static bfd_vma
4310 elf_cris_got_elt_size (bfd *abfd ATTRIBUTE_UNUSED,
4311                        struct bfd_link_info *info ATTRIBUTE_UNUSED,
4312                        struct elf_link_hash_entry *hr,
4313                        bfd *ibfd,
4314                        unsigned long symndx)
4315 {
4316   struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) hr;
4317   bfd_vma eltsiz = 0;
4318
4319   /* We may have one regular GOT entry or up to two TLS GOT
4320      entries.  */
4321   if (h == NULL)
4322     {
4323       Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4324       bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (ibfd);
4325
4326       BFD_ASSERT (local_got_refcounts != NULL);
4327
4328       if (local_got_refcounts[LGOT_REG_NDX (symndx)] > 0)
4329         {
4330           /* We can't have a variable referred to both as a regular
4331              variable and through TLS relocs.  */
4332           BFD_ASSERT (local_got_refcounts[LGOT_DTP_NDX (symndx)] == 0
4333                       && local_got_refcounts[LGOT_TPREL_NDX (symndx)] == 0);
4334           return 4;
4335         }
4336
4337       if (local_got_refcounts[LGOT_DTP_NDX (symndx)] > 0)
4338         eltsiz += 8;
4339
4340       if (local_got_refcounts[LGOT_TPREL_NDX (symndx)] > 0)
4341         eltsiz += 4;
4342     }
4343   else
4344     {
4345       struct elf_cris_link_hash_entry *hh = elf_cris_hash_entry (h);
4346       if (hh->reg_got_refcount > 0)
4347         {
4348           /* The actual error-on-input is emitted elsewhere.  */
4349           BFD_ASSERT (hh->dtp_refcount == 0 && hh->tprel_refcount == 0);
4350           return 4;
4351         }
4352
4353       if (hh->dtp_refcount > 0)
4354         eltsiz += 8;
4355
4356       if (hh->tprel_refcount > 0)
4357         eltsiz += 4;
4358     }
4359
4360   /* We're only called when h->got.refcount is non-zero, so we must
4361      have a non-zero size.  */
4362   BFD_ASSERT (eltsiz != 0);
4363   return eltsiz;
4364 }
4365 \f
4366 #define ELF_ARCH                bfd_arch_cris
4367 #define ELF_TARGET_ID           CRIS_ELF_DATA
4368 #define ELF_MACHINE_CODE        EM_CRIS
4369 #define ELF_MAXPAGESIZE         0x2000
4370
4371 #define TARGET_LITTLE_SYM       bfd_elf32_cris_vec
4372 #define TARGET_LITTLE_NAME      "elf32-cris"
4373 #define elf_symbol_leading_char 0
4374
4375 #define elf_info_to_howto_rel                   NULL
4376 #define elf_info_to_howto                       cris_info_to_howto_rela
4377 #define elf_backend_relocate_section            cris_elf_relocate_section
4378 #define elf_backend_gc_mark_hook                cris_elf_gc_mark_hook
4379 #define elf_backend_gc_sweep_hook               cris_elf_gc_sweep_hook
4380 #define elf_backend_plt_sym_val                 cris_elf_plt_sym_val
4381 #define elf_backend_check_relocs                cris_elf_check_relocs
4382 #define elf_backend_grok_prstatus               cris_elf_grok_prstatus
4383 #define elf_backend_grok_psinfo                 cris_elf_grok_psinfo
4384
4385 #define elf_backend_can_gc_sections             1
4386 #define elf_backend_can_refcount                1
4387
4388 #define elf_backend_object_p                    cris_elf_object_p
4389 #define elf_backend_final_write_processing \
4390         cris_elf_final_write_processing
4391 #define bfd_elf32_bfd_print_private_bfd_data \
4392         cris_elf_print_private_bfd_data
4393 #define bfd_elf32_bfd_merge_private_bfd_data \
4394         cris_elf_merge_private_bfd_data
4395 #define bfd_elf32_bfd_copy_private_bfd_data \
4396         cris_elf_copy_private_bfd_data
4397
4398 #define bfd_elf32_bfd_reloc_type_lookup         cris_reloc_type_lookup
4399 #define bfd_elf32_bfd_reloc_name_lookup cris_reloc_name_lookup
4400
4401 #define bfd_elf32_bfd_link_hash_table_create \
4402         elf_cris_link_hash_table_create
4403 #define elf_backend_adjust_dynamic_symbol \
4404         elf_cris_adjust_dynamic_symbol
4405 #define elf_backend_copy_indirect_symbol \
4406         elf_cris_copy_indirect_symbol
4407 #define elf_backend_size_dynamic_sections \
4408         elf_cris_size_dynamic_sections
4409 #define elf_backend_init_index_section          _bfd_elf_init_1_index_section
4410 #define elf_backend_finish_dynamic_symbol \
4411         elf_cris_finish_dynamic_symbol
4412 #define elf_backend_finish_dynamic_sections \
4413         elf_cris_finish_dynamic_sections
4414 #define elf_backend_create_dynamic_sections \
4415         _bfd_elf_create_dynamic_sections
4416 #define bfd_elf32_bfd_final_link \
4417         bfd_elf_gc_common_final_link
4418 #define elf_backend_hide_symbol                 elf_cris_hide_symbol
4419 #define elf_backend_reloc_type_class            elf_cris_reloc_type_class
4420
4421 #define elf_backend_want_got_plt        1
4422 #define elf_backend_plt_readonly        1
4423 #define elf_backend_want_plt_sym        0
4424 #define elf_backend_got_header_size     12
4425 #define elf_backend_got_elt_size elf_cris_got_elt_size
4426
4427 /* Later, we my want to optimize RELA entries into REL entries for dynamic
4428    linking and libraries (if it's a win of any significance).  Until then,
4429    take the easy route.  */
4430 #define elf_backend_may_use_rel_p 0
4431 #define elf_backend_may_use_rela_p 1
4432 #define elf_backend_rela_normal         1
4433
4434 #include "elf32-target.h"
4435
4436 #undef TARGET_LITTLE_SYM
4437 #undef TARGET_LITTLE_NAME
4438 #undef elf_symbol_leading_char
4439
4440 #define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
4441 #define TARGET_LITTLE_NAME "elf32-us-cris"
4442 #define elf_symbol_leading_char '_'
4443 #undef elf32_bed
4444 #define elf32_bed elf32_us_cris_bed
4445
4446 #include "elf32-target.h"