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elf32-cris.c revision 1.1
      1  1.1  skrll /* CRIS-specific support for 32-bit ELF.
      2  1.1  skrll    Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
      3  1.1  skrll    Free Software Foundation, Inc.
      4  1.1  skrll    Contributed by Axis Communications AB.
      5  1.1  skrll    Written by Hans-Peter Nilsson, based on elf32-fr30.c
      6  1.1  skrll    PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c.
      7  1.1  skrll 
      8  1.1  skrll    This file is part of BFD, the Binary File Descriptor library.
      9  1.1  skrll 
     10  1.1  skrll    This program is free software; you can redistribute it and/or modify
     11  1.1  skrll    it under the terms of the GNU General Public License as published by
     12  1.1  skrll    the Free Software Foundation; either version 3 of the License, or
     13  1.1  skrll    (at your option) any later version.
     14  1.1  skrll 
     15  1.1  skrll    This program is distributed in the hope that it will be useful,
     16  1.1  skrll    but WITHOUT ANY WARRANTY; without even the implied warranty of
     17  1.1  skrll    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     18  1.1  skrll    GNU General Public License for more details.
     19  1.1  skrll 
     20  1.1  skrll    You should have received a copy of the GNU General Public License
     21  1.1  skrll    along with this program; if not, write to the Free Software
     22  1.1  skrll    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     23  1.1  skrll    MA 02110-1301, USA.  */
     24  1.1  skrll 
     25  1.1  skrll #include "sysdep.h"
     26  1.1  skrll #include "bfd.h"
     27  1.1  skrll #include "libbfd.h"
     28  1.1  skrll #include "elf-bfd.h"
     29  1.1  skrll #include "elf/cris.h"
     30  1.1  skrll 
     31  1.1  skrll /* Forward declarations.  */
     32  1.1  skrll static reloc_howto_type * cris_reloc_type_lookup
     33  1.1  skrll   PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
     34  1.1  skrll 
     35  1.1  skrll static void cris_info_to_howto_rela
     36  1.1  skrll   PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
     37  1.1  skrll 
     38  1.1  skrll static bfd_reloc_status_type cris_elf_pcrel_reloc
     39  1.1  skrll   PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
     40  1.1  skrll 
     41  1.1  skrll static bfd_boolean cris_elf_grok_prstatus
     42  1.1  skrll   PARAMS ((bfd *abfd, Elf_Internal_Note *note));
     43  1.1  skrll 
     44  1.1  skrll static bfd_boolean cris_elf_grok_psinfo
     45  1.1  skrll   PARAMS ((bfd *abfd, Elf_Internal_Note *note));
     46  1.1  skrll 
     47  1.1  skrll static bfd_boolean cris_elf_relocate_section
     48  1.1  skrll   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
     49  1.1  skrll 	   Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
     50  1.1  skrll 
     51  1.1  skrll static bfd_reloc_status_type cris_final_link_relocate
     52  1.1  skrll   PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
     53  1.1  skrll 	   Elf_Internal_Rela *, bfd_vma));
     54  1.1  skrll 
     55  1.1  skrll static bfd_boolean cris_elf_object_p PARAMS ((bfd *));
     56  1.1  skrll 
     57  1.1  skrll static void cris_elf_final_write_processing PARAMS ((bfd *, bfd_boolean));
     58  1.1  skrll 
     59  1.1  skrll static bfd_boolean cris_elf_set_mach_from_flags
     60  1.1  skrll   PARAMS ((bfd *, unsigned long int));
     61  1.1  skrll 
     62  1.1  skrll static bfd_boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
     63  1.1  skrll 
     64  1.1  skrll static bfd_boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
     65  1.1  skrll static bfd_boolean cris_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
     66  1.1  skrll 
     67  1.1  skrll struct elf_cris_link_hash_entry;
     68  1.1  skrll static bfd_boolean elf_cris_discard_excess_dso_dynamics
     69  1.1  skrll   PARAMS ((struct elf_cris_link_hash_entry *, PTR));
     70  1.1  skrll static bfd_boolean elf_cris_discard_excess_program_dynamics
     71  1.1  skrll   PARAMS ((struct elf_cris_link_hash_entry *, PTR));
     72  1.1  skrll static bfd_boolean elf_cris_adjust_gotplt_to_got
     73  1.1  skrll   PARAMS ((struct elf_cris_link_hash_entry *, PTR));
     74  1.1  skrll static bfd_boolean elf_cris_try_fold_plt_to_got
     75  1.1  skrll   PARAMS ((struct elf_cris_link_hash_entry *, PTR));
     76  1.1  skrll static struct bfd_hash_entry *elf_cris_link_hash_newfunc
     77  1.1  skrll   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
     78  1.1  skrll static struct bfd_link_hash_table *elf_cris_link_hash_table_create
     79  1.1  skrll   PARAMS ((bfd *));
     80  1.1  skrll static bfd_boolean elf_cris_adjust_dynamic_symbol
     81  1.1  skrll   PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
     82  1.1  skrll static bfd_boolean cris_elf_check_relocs
     83  1.1  skrll   PARAMS ((bfd *, struct bfd_link_info *, asection *,
     84  1.1  skrll 	   const Elf_Internal_Rela *));
     85  1.1  skrll 
     86  1.1  skrll static bfd_boolean elf_cris_size_dynamic_sections
     87  1.1  skrll   PARAMS ((bfd *, struct bfd_link_info *));
     88  1.1  skrll static bfd_boolean elf_cris_finish_dynamic_symbol
     89  1.1  skrll   PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
     90  1.1  skrll 	   Elf_Internal_Sym *));
     91  1.1  skrll static bfd_boolean elf_cris_finish_dynamic_sections
     92  1.1  skrll   PARAMS ((bfd *, struct bfd_link_info *));
     93  1.1  skrll static void elf_cris_hide_symbol
     94  1.1  skrll   PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
     95  1.1  skrll static enum elf_reloc_type_class elf_cris_reloc_type_class
     96  1.1  skrll   PARAMS ((const Elf_Internal_Rela *));
     97  1.1  skrll 
     98  1.1  skrll static reloc_howto_type cris_elf_howto_table [] =
     99  1.1  skrll {
    100  1.1  skrll   /* This reloc does nothing.  */
    101  1.1  skrll   HOWTO (R_CRIS_NONE,		/* type */
    102  1.1  skrll 	 0,			/* rightshift */
    103  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    104  1.1  skrll 	 32,			/* bitsize */
    105  1.1  skrll 	 FALSE,			/* pc_relative */
    106  1.1  skrll 	 0,			/* bitpos */
    107  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    108  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    109  1.1  skrll 	 "R_CRIS_NONE",		/* name */
    110  1.1  skrll 	 FALSE,			/* partial_inplace */
    111  1.1  skrll 	 0,			/* src_mask */
    112  1.1  skrll 	 0,			/* dst_mask */
    113  1.1  skrll 	 FALSE),		/* pcrel_offset */
    114  1.1  skrll 
    115  1.1  skrll   /* An 8 bit absolute relocation.  */
    116  1.1  skrll   HOWTO (R_CRIS_8,		/* type */
    117  1.1  skrll 	 0,			/* rightshift */
    118  1.1  skrll 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
    119  1.1  skrll 	 8,			/* bitsize */
    120  1.1  skrll 	 FALSE,			/* pc_relative */
    121  1.1  skrll 	 0,			/* bitpos */
    122  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    123  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    124  1.1  skrll 	 "R_CRIS_8",		/* name */
    125  1.1  skrll 	 FALSE,			/* partial_inplace */
    126  1.1  skrll 	 0x0000,		/* src_mask */
    127  1.1  skrll 	 0x00ff,		/* dst_mask */
    128  1.1  skrll 	 FALSE),		/* pcrel_offset */
    129  1.1  skrll 
    130  1.1  skrll   /* A 16 bit absolute relocation.  */
    131  1.1  skrll   HOWTO (R_CRIS_16,		/* type */
    132  1.1  skrll 	 0,			/* rightshift */
    133  1.1  skrll 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    134  1.1  skrll 	 16,			/* bitsize */
    135  1.1  skrll 	 FALSE,			/* pc_relative */
    136  1.1  skrll 	 0,			/* bitpos */
    137  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    138  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    139  1.1  skrll 	 "R_CRIS_16",		/* name */
    140  1.1  skrll 	 FALSE,			/* partial_inplace */
    141  1.1  skrll 	 0x00000000,		/* src_mask */
    142  1.1  skrll 	 0x0000ffff,		/* dst_mask */
    143  1.1  skrll 	 FALSE),		/* pcrel_offset */
    144  1.1  skrll 
    145  1.1  skrll   /* A 32 bit absolute relocation.  */
    146  1.1  skrll   HOWTO (R_CRIS_32,		/* type */
    147  1.1  skrll 	 0,			/* rightshift */
    148  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    149  1.1  skrll 	 32,			/* bitsize */
    150  1.1  skrll 	 FALSE,			/* pc_relative */
    151  1.1  skrll 	 0,			/* bitpos */
    152  1.1  skrll 	 /* We don't want overflow complaints for 64-bit vma builds
    153  1.1  skrll 	    for e.g. sym+0x40000000 (or actually sym-0xc0000000 in
    154  1.1  skrll 	    32-bit ELF) where sym=0xc0001234.
    155  1.1  skrll 	    Don't do this for the PIC relocs, as we don't expect to
    156  1.1  skrll 	    see them with large offsets.  */
    157  1.1  skrll 	 complain_overflow_dont, /* complain_on_overflow */
    158  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    159  1.1  skrll 	 "R_CRIS_32",		/* name */
    160  1.1  skrll 	 FALSE,			/* partial_inplace */
    161  1.1  skrll 	 0x00000000,		/* src_mask */
    162  1.1  skrll 	 0xffffffff,		/* dst_mask */
    163  1.1  skrll 	 FALSE),		/* pcrel_offset */
    164  1.1  skrll 
    165  1.1  skrll   /* An 8 bit PC-relative relocation.  */
    166  1.1  skrll   HOWTO (R_CRIS_8_PCREL,	/* type */
    167  1.1  skrll 	 0,			/* rightshift */
    168  1.1  skrll 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
    169  1.1  skrll 	 8,			/* bitsize */
    170  1.1  skrll 	 TRUE,			/* pc_relative */
    171  1.1  skrll 	 0,			/* bitpos */
    172  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    173  1.1  skrll 	 cris_elf_pcrel_reloc,	/* special_function */
    174  1.1  skrll 	 "R_CRIS_8_PCREL",	/* name */
    175  1.1  skrll 	 FALSE,			/* partial_inplace */
    176  1.1  skrll 	 0x0000,		/* src_mask */
    177  1.1  skrll 	 0x00ff,		/* dst_mask */
    178  1.1  skrll 	 TRUE),			/* pcrel_offset */
    179  1.1  skrll 
    180  1.1  skrll   /* A 16 bit PC-relative relocation.  */
    181  1.1  skrll   HOWTO (R_CRIS_16_PCREL,	/* type */
    182  1.1  skrll 	 0,			/* rightshift */
    183  1.1  skrll 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    184  1.1  skrll 	 16,			/* bitsize */
    185  1.1  skrll 	 TRUE,			/* pc_relative */
    186  1.1  skrll 	 0,			/* bitpos */
    187  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    188  1.1  skrll 	 cris_elf_pcrel_reloc,	/* special_function */
    189  1.1  skrll 	 "R_CRIS_16_PCREL",	/* name */
    190  1.1  skrll 	 FALSE,			/* partial_inplace */
    191  1.1  skrll 	 0x00000000,		/* src_mask */
    192  1.1  skrll 	 0x0000ffff,		/* dst_mask */
    193  1.1  skrll 	 TRUE),			/* pcrel_offset */
    194  1.1  skrll 
    195  1.1  skrll   /* A 32 bit PC-relative relocation.  */
    196  1.1  skrll   HOWTO (R_CRIS_32_PCREL,	/* type */
    197  1.1  skrll 	 0,			/* rightshift */
    198  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    199  1.1  skrll 	 32,			/* bitsize */
    200  1.1  skrll 	 TRUE,			/* pc_relative */
    201  1.1  skrll 	 0,			/* bitpos */
    202  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    203  1.1  skrll 	 cris_elf_pcrel_reloc,	/* special_function */
    204  1.1  skrll 	 "R_CRIS_32_PCREL",	/* name */
    205  1.1  skrll 	 FALSE,			/* partial_inplace */
    206  1.1  skrll 	 0x00000000,		/* src_mask */
    207  1.1  skrll 	 0xffffffff,		/* dst_mask */
    208  1.1  skrll 	 TRUE),			/* pcrel_offset */
    209  1.1  skrll 
    210  1.1  skrll   /* GNU extension to record C++ vtable hierarchy.  */
    211  1.1  skrll   HOWTO (R_CRIS_GNU_VTINHERIT,	/* type */
    212  1.1  skrll 	 0,			/* rightshift */
    213  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    214  1.1  skrll 	 0,			/* bitsize */
    215  1.1  skrll 	 FALSE,			/* pc_relative */
    216  1.1  skrll 	 0,			/* bitpos */
    217  1.1  skrll 	 complain_overflow_dont, /* complain_on_overflow */
    218  1.1  skrll 	 NULL,			/* special_function */
    219  1.1  skrll 	 "R_CRIS_GNU_VTINHERIT", /* name */
    220  1.1  skrll 	 FALSE,			/* partial_inplace */
    221  1.1  skrll 	 0,			/* src_mask */
    222  1.1  skrll 	 0,			/* dst_mask */
    223  1.1  skrll 	 FALSE),		/* pcrel_offset */
    224  1.1  skrll 
    225  1.1  skrll   /* GNU extension to record C++ vtable member usage.  */
    226  1.1  skrll   HOWTO (R_CRIS_GNU_VTENTRY,	/* type */
    227  1.1  skrll 	 0,			/* rightshift */
    228  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    229  1.1  skrll 	 0,			/* bitsize */
    230  1.1  skrll 	 FALSE,			/* pc_relative */
    231  1.1  skrll 	 0,			/* bitpos */
    232  1.1  skrll 	 complain_overflow_dont, /* complain_on_overflow */
    233  1.1  skrll 	 _bfd_elf_rel_vtable_reloc_fn,	/* special_function */
    234  1.1  skrll 	 "R_CRIS_GNU_VTENTRY",	 /* name */
    235  1.1  skrll 	 FALSE,			/* partial_inplace */
    236  1.1  skrll 	 0,			/* src_mask */
    237  1.1  skrll 	 0,			/* dst_mask */
    238  1.1  skrll 	 FALSE),		/* pcrel_offset */
    239  1.1  skrll 
    240  1.1  skrll   /* This is used only by the dynamic linker.  The symbol should exist
    241  1.1  skrll      both in the object being run and in some shared library.  The
    242  1.1  skrll      dynamic linker copies the data addressed by the symbol from the
    243  1.1  skrll      shared library into the object, because the object being
    244  1.1  skrll      run has to have the data at some particular address.  */
    245  1.1  skrll   HOWTO (R_CRIS_COPY,		/* type */
    246  1.1  skrll 	 0,			/* rightshift */
    247  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    248  1.1  skrll 	 32,			/* bitsize */
    249  1.1  skrll 	 FALSE,			/* pc_relative */
    250  1.1  skrll 	 0,			/* bitpos */
    251  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    252  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    253  1.1  skrll 	 "R_CRIS_COPY",		/* name */
    254  1.1  skrll 	 FALSE,			/* partial_inplace */
    255  1.1  skrll 	 0,			/* src_mask */
    256  1.1  skrll 	 0,			/* dst_mask */
    257  1.1  skrll 	 FALSE),		/* pcrel_offset */
    258  1.1  skrll 
    259  1.1  skrll   /* Like R_CRIS_32, but used when setting global offset table entries.  */
    260  1.1  skrll   HOWTO (R_CRIS_GLOB_DAT,	/* type */
    261  1.1  skrll 	 0,			/* rightshift */
    262  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    263  1.1  skrll 	 32,			/* bitsize */
    264  1.1  skrll 	 FALSE,			/* pc_relative */
    265  1.1  skrll 	 0,			/* bitpos */
    266  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    267  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    268  1.1  skrll 	 "R_CRIS_GLOB_DAT",	/* name */
    269  1.1  skrll 	 FALSE,			/* partial_inplace */
    270  1.1  skrll 	 0,			/* src_mask */
    271  1.1  skrll 	 0xffffffff,		/* dst_mask */
    272  1.1  skrll 	 FALSE),		/* pcrel_offset */
    273  1.1  skrll 
    274  1.1  skrll   /* Marks a procedure linkage table entry for a symbol.  */
    275  1.1  skrll   HOWTO (R_CRIS_JUMP_SLOT,	/* type */
    276  1.1  skrll 	 0,			/* rightshift */
    277  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    278  1.1  skrll 	 32,			/* bitsize */
    279  1.1  skrll 	 FALSE,			/* pc_relative */
    280  1.1  skrll 	 0,			/* bitpos */
    281  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    282  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    283  1.1  skrll 	 "R_CRIS_JUMP_SLOT",	/* name */
    284  1.1  skrll 	 FALSE,			/* partial_inplace */
    285  1.1  skrll 	 0,			/* src_mask */
    286  1.1  skrll 	 0,			/* dst_mask */
    287  1.1  skrll 	 FALSE),		/* pcrel_offset */
    288  1.1  skrll 
    289  1.1  skrll   /* Used only by the dynamic linker.  When the object is run, this
    290  1.1  skrll      longword is set to the load address of the object, plus the
    291  1.1  skrll      addend.  */
    292  1.1  skrll   HOWTO (R_CRIS_RELATIVE,	/* type */
    293  1.1  skrll 	 0,			/* rightshift */
    294  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    295  1.1  skrll 	 32,			/* bitsize */
    296  1.1  skrll 	 FALSE,			/* pc_relative */
    297  1.1  skrll 	 0,			/* bitpos */
    298  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    299  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    300  1.1  skrll 	 "R_CRIS_RELATIVE",	/* name */
    301  1.1  skrll 	 FALSE,			/* partial_inplace */
    302  1.1  skrll 	 0,			/* src_mask */
    303  1.1  skrll 	 0xffffffff,		/* dst_mask */
    304  1.1  skrll 	 FALSE),		/* pcrel_offset */
    305  1.1  skrll 
    306  1.1  skrll   /* Like R_CRIS_32, but referring to the GOT table entry for the symbol.  */
    307  1.1  skrll   HOWTO (R_CRIS_16_GOT,		/* type */
    308  1.1  skrll 	 0,			/* rightshift */
    309  1.1  skrll 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    310  1.1  skrll 	 16,			/* bitsize */
    311  1.1  skrll 	 FALSE,			/* pc_relative */
    312  1.1  skrll 	 0,			/* bitpos */
    313  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    314  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    315  1.1  skrll 	 "R_CRIS_16_GOT",	/* name */
    316  1.1  skrll 	 FALSE,			/* partial_inplace */
    317  1.1  skrll 	 0,			/* src_mask */
    318  1.1  skrll 	 0xffff,		/* dst_mask */
    319  1.1  skrll 	 FALSE),		/* pcrel_offset */
    320  1.1  skrll 
    321  1.1  skrll   HOWTO (R_CRIS_32_GOT,		/* type */
    322  1.1  skrll 	 0,			/* rightshift */
    323  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    324  1.1  skrll 	 32,			/* bitsize */
    325  1.1  skrll 	 FALSE,			/* pc_relative */
    326  1.1  skrll 	 0,			/* bitpos */
    327  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    328  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    329  1.1  skrll 	 "R_CRIS_32_GOT",	/* name */
    330  1.1  skrll 	 FALSE,			/* partial_inplace */
    331  1.1  skrll 	 0,			/* src_mask */
    332  1.1  skrll 	 0xffffffff,		/* dst_mask */
    333  1.1  skrll 	 FALSE),		/* pcrel_offset */
    334  1.1  skrll 
    335  1.1  skrll   /* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
    336  1.1  skrll      the GOT table for the symbol.  */
    337  1.1  skrll   HOWTO (R_CRIS_16_GOTPLT,	/* type */
    338  1.1  skrll 	 0,			/* rightshift */
    339  1.1  skrll 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
    340  1.1  skrll 	 16,			/* bitsize */
    341  1.1  skrll 	 FALSE,			/* pc_relative */
    342  1.1  skrll 	 0,			/* bitpos */
    343  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    344  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    345  1.1  skrll 	 "R_CRIS_16_GOTPLT",	/* name */
    346  1.1  skrll 	 FALSE,			/* partial_inplace */
    347  1.1  skrll 	 0,			/* src_mask */
    348  1.1  skrll 	 0xffff,		/* dst_mask */
    349  1.1  skrll 	 FALSE),		/* pcrel_offset */
    350  1.1  skrll 
    351  1.1  skrll   HOWTO (R_CRIS_32_GOTPLT,	/* type */
    352  1.1  skrll 	 0,			/* rightshift */
    353  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    354  1.1  skrll 	 32,			/* bitsize */
    355  1.1  skrll 	 FALSE,			/* pc_relative */
    356  1.1  skrll 	 0,			/* bitpos */
    357  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    358  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    359  1.1  skrll 	 "R_CRIS_32_GOTPLT",	/* name */
    360  1.1  skrll 	 FALSE,			/* partial_inplace */
    361  1.1  skrll 	 0,			/* src_mask */
    362  1.1  skrll 	 0xffffffff,		/* dst_mask */
    363  1.1  skrll 	 FALSE),		/* pcrel_offset */
    364  1.1  skrll 
    365  1.1  skrll   /* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
    366  1.1  skrll      be necessary.  */
    367  1.1  skrll   HOWTO (R_CRIS_32_GOTREL,	/* type */
    368  1.1  skrll 	 0,			/* rightshift */
    369  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    370  1.1  skrll 	 32,			/* bitsize */
    371  1.1  skrll 	 FALSE,			/* pc_relative */
    372  1.1  skrll 	 0,			/* bitpos */
    373  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    374  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    375  1.1  skrll 	 "R_CRIS_32_GOTREL",	/* name */
    376  1.1  skrll 	 FALSE,			/* partial_inplace */
    377  1.1  skrll 	 0,			/* src_mask */
    378  1.1  skrll 	 0xffffffff,		/* dst_mask */
    379  1.1  skrll 	 FALSE),		/* pcrel_offset */
    380  1.1  skrll 
    381  1.1  skrll   /* A 32-bit offset from GOT to entry for this symbol in PLT and request
    382  1.1  skrll      to create PLT entry for symbol.  */
    383  1.1  skrll   HOWTO (R_CRIS_32_PLT_GOTREL,	/* type */
    384  1.1  skrll 	 0,			/* rightshift */
    385  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    386  1.1  skrll 	 32,			/* bitsize */
    387  1.1  skrll 	 FALSE,			/* pc_relative */
    388  1.1  skrll 	 0,			/* bitpos */
    389  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    390  1.1  skrll 	 bfd_elf_generic_reloc,	/* special_function */
    391  1.1  skrll 	 "R_CRIS_32_PLT_GOTREL", /* name */
    392  1.1  skrll 	 FALSE,			/* partial_inplace */
    393  1.1  skrll 	 0,			/* src_mask */
    394  1.1  skrll 	 0xffffffff,		/* dst_mask */
    395  1.1  skrll 	 FALSE),		/* pcrel_offset */
    396  1.1  skrll 
    397  1.1  skrll   /* A 32-bit offset from PC (location after the relocation) + addend to
    398  1.1  skrll      entry for this symbol in PLT and request to create PLT entry for
    399  1.1  skrll      symbol.  */
    400  1.1  skrll   HOWTO (R_CRIS_32_PLT_PCREL,	/* type */
    401  1.1  skrll 	 0,			/* rightshift */
    402  1.1  skrll 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
    403  1.1  skrll 	 32,			/* bitsize */
    404  1.1  skrll 	 TRUE,			/* pc_relative */
    405  1.1  skrll 	 0,			/* bitpos */
    406  1.1  skrll 	 complain_overflow_bitfield, /* complain_on_overflow */
    407  1.1  skrll 	 cris_elf_pcrel_reloc,	/* special_function */
    408  1.1  skrll 	 "R_CRIS_32_PLT_PCREL",	/* name */
    409  1.1  skrll 	 FALSE,			/* partial_inplace */
    410  1.1  skrll 	 0,			/* src_mask */
    411  1.1  skrll 	 0xffffffff,		/* dst_mask */
    412  1.1  skrll 	 TRUE)			/* pcrel_offset */
    413  1.1  skrll };
    414  1.1  skrll 
    415  1.1  skrll /* Map BFD reloc types to CRIS ELF reloc types.  */
    417  1.1  skrll 
    418  1.1  skrll struct cris_reloc_map
    419  1.1  skrll {
    420  1.1  skrll   bfd_reloc_code_real_type bfd_reloc_val;
    421  1.1  skrll   unsigned int cris_reloc_val;
    422  1.1  skrll };
    423  1.1  skrll 
    424  1.1  skrll static const struct cris_reloc_map cris_reloc_map [] =
    425  1.1  skrll {
    426  1.1  skrll   { BFD_RELOC_NONE,		R_CRIS_NONE },
    427  1.1  skrll   { BFD_RELOC_8,		R_CRIS_8 },
    428  1.1  skrll   { BFD_RELOC_16,		R_CRIS_16 },
    429  1.1  skrll   { BFD_RELOC_32,		R_CRIS_32 },
    430  1.1  skrll   { BFD_RELOC_8_PCREL,		R_CRIS_8_PCREL },
    431  1.1  skrll   { BFD_RELOC_16_PCREL,		R_CRIS_16_PCREL },
    432  1.1  skrll   { BFD_RELOC_32_PCREL,		R_CRIS_32_PCREL },
    433  1.1  skrll   { BFD_RELOC_VTABLE_INHERIT,	R_CRIS_GNU_VTINHERIT },
    434  1.1  skrll   { BFD_RELOC_VTABLE_ENTRY,	R_CRIS_GNU_VTENTRY },
    435  1.1  skrll   { BFD_RELOC_CRIS_COPY,	R_CRIS_COPY },
    436  1.1  skrll   { BFD_RELOC_CRIS_GLOB_DAT,	R_CRIS_GLOB_DAT },
    437  1.1  skrll   { BFD_RELOC_CRIS_JUMP_SLOT,	R_CRIS_JUMP_SLOT },
    438  1.1  skrll   { BFD_RELOC_CRIS_RELATIVE,	R_CRIS_RELATIVE },
    439  1.1  skrll   { BFD_RELOC_CRIS_16_GOT,	R_CRIS_16_GOT },
    440  1.1  skrll   { BFD_RELOC_CRIS_32_GOT,	R_CRIS_32_GOT },
    441  1.1  skrll   { BFD_RELOC_CRIS_16_GOTPLT,	R_CRIS_16_GOTPLT },
    442  1.1  skrll   { BFD_RELOC_CRIS_32_GOTPLT,	R_CRIS_32_GOTPLT },
    443  1.1  skrll   { BFD_RELOC_CRIS_32_GOTREL,	R_CRIS_32_GOTREL },
    444  1.1  skrll   { BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL },
    445  1.1  skrll   { BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL }
    446  1.1  skrll };
    447  1.1  skrll 
    448  1.1  skrll static reloc_howto_type *
    449  1.1  skrll cris_reloc_type_lookup (abfd, code)
    450  1.1  skrll      bfd * abfd ATTRIBUTE_UNUSED;
    451  1.1  skrll      bfd_reloc_code_real_type code;
    452  1.1  skrll {
    453  1.1  skrll   unsigned int i;
    454  1.1  skrll 
    455  1.1  skrll   for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++)
    456  1.1  skrll     if (cris_reloc_map [i].bfd_reloc_val == code)
    457  1.1  skrll       return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
    458  1.1  skrll 
    459  1.1  skrll   return NULL;
    460  1.1  skrll }
    461  1.1  skrll 
    462  1.1  skrll static reloc_howto_type *
    463  1.1  skrll cris_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
    464  1.1  skrll {
    465  1.1  skrll   unsigned int i;
    466  1.1  skrll 
    467  1.1  skrll   for (i = 0;
    468  1.1  skrll        i < sizeof (cris_elf_howto_table) / sizeof (cris_elf_howto_table[0]);
    469  1.1  skrll        i++)
    470  1.1  skrll     if (cris_elf_howto_table[i].name != NULL
    471  1.1  skrll 	&& strcasecmp (cris_elf_howto_table[i].name, r_name) == 0)
    472  1.1  skrll       return &cris_elf_howto_table[i];
    473  1.1  skrll 
    474  1.1  skrll   return NULL;
    475  1.1  skrll }
    476  1.1  skrll 
    477  1.1  skrll /* Set the howto pointer for an CRIS ELF reloc.  */
    478  1.1  skrll 
    479  1.1  skrll static void
    480  1.1  skrll cris_info_to_howto_rela (abfd, cache_ptr, dst)
    481  1.1  skrll      bfd * abfd ATTRIBUTE_UNUSED;
    482  1.1  skrll      arelent * cache_ptr;
    483  1.1  skrll      Elf_Internal_Rela * dst;
    484  1.1  skrll {
    485  1.1  skrll   unsigned int r_type;
    486  1.1  skrll 
    487  1.1  skrll   r_type = ELF32_R_TYPE (dst->r_info);
    488  1.1  skrll   BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
    489  1.1  skrll   cache_ptr->howto = & cris_elf_howto_table [r_type];
    490  1.1  skrll }
    491  1.1  skrll 
    492  1.1  skrll bfd_reloc_status_type
    493  1.1  skrll cris_elf_pcrel_reloc (abfd, reloc_entry, symbol, data, input_section,
    494  1.1  skrll 		      output_bfd, error_message)
    495  1.1  skrll      bfd *abfd ATTRIBUTE_UNUSED;
    496  1.1  skrll      arelent *reloc_entry;
    497  1.1  skrll      asymbol *symbol;
    498  1.1  skrll      PTR data ATTRIBUTE_UNUSED;
    499  1.1  skrll      asection *input_section;
    500  1.1  skrll      bfd *output_bfd;
    501  1.1  skrll      char **error_message ATTRIBUTE_UNUSED;
    502  1.1  skrll {
    503  1.1  skrll   /* By default (using only bfd_elf_generic_reloc when linking to
    504  1.1  skrll      non-ELF formats) PC-relative relocs are relative to the beginning
    505  1.1  skrll      of the reloc.  CRIS PC-relative relocs are relative to the position
    506  1.1  skrll      *after* the reloc because that's what pre-CRISv32 PC points to
    507  1.1  skrll      after reading an insn field with that reloc.  (For CRISv32, PC is
    508  1.1  skrll      actually relative to the start of the insn, but we keep the old
    509  1.1  skrll      definition.)  Still, we use as much generic machinery as we can.
    510  1.1  skrll 
    511  1.1  skrll      Only adjust when doing a final link.  */
    512  1.1  skrll   if (output_bfd == (bfd *) NULL)
    513  1.1  skrll     reloc_entry->addend -= 1 << reloc_entry->howto->size;
    514  1.1  skrll 
    515  1.1  skrll   return
    516  1.1  skrll     bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
    517  1.1  skrll 			   input_section, output_bfd, error_message);
    518  1.1  skrll }
    519  1.1  skrll 
    520  1.1  skrll /* Support for core dump NOTE sections.
    522  1.1  skrll    The slightly unintuitive code layout is an attempt to keep at least
    523  1.1  skrll    some similarities with other ports, hoping to simplify general
    524  1.1  skrll    changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart.  */
    525  1.1  skrll 
    526  1.1  skrll static bfd_boolean
    527  1.1  skrll cris_elf_grok_prstatus (abfd, note)
    528  1.1  skrll      bfd *abfd;
    529  1.1  skrll      Elf_Internal_Note *note;
    530  1.1  skrll {
    531  1.1  skrll   int offset;
    532  1.1  skrll   size_t size;
    533  1.1  skrll 
    534  1.1  skrll   if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
    535  1.1  skrll     switch (note->descsz)
    536  1.1  skrll       {
    537  1.1  skrll       default:
    538  1.1  skrll 	return FALSE;
    539  1.1  skrll 
    540  1.1  skrll       case 202:		/* Linux/CRISv32 */
    541  1.1  skrll 	/* pr_cursig */
    542  1.1  skrll 	elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
    543  1.1  skrll 
    544  1.1  skrll 	/* pr_pid */
    545  1.1  skrll 	elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
    546  1.1  skrll 
    547  1.1  skrll 	/* pr_reg */
    548  1.1  skrll 	offset = 70;
    549  1.1  skrll 	size = 128;
    550  1.1  skrll 
    551  1.1  skrll 	break;
    552  1.1  skrll       }
    553  1.1  skrll   else
    554  1.1  skrll     switch (note->descsz)
    555  1.1  skrll       {
    556  1.1  skrll       default:
    557  1.1  skrll 	return FALSE;
    558  1.1  skrll 
    559  1.1  skrll       case 214:		/* Linux/CRIS */
    560  1.1  skrll 	/* pr_cursig */
    561  1.1  skrll 	elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
    562  1.1  skrll 
    563  1.1  skrll 	/* pr_pid */
    564  1.1  skrll 	elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
    565  1.1  skrll 
    566  1.1  skrll 	/* pr_reg */
    567  1.1  skrll 	offset = 70;
    568  1.1  skrll 	size = 140;
    569  1.1  skrll 
    570  1.1  skrll 	break;
    571  1.1  skrll       }
    572  1.1  skrll 
    573  1.1  skrll   /* Make a ".reg/999" section.  */
    574  1.1  skrll   return _bfd_elfcore_make_pseudosection (abfd, ".reg",
    575  1.1  skrll 					  size, note->descpos + offset);
    576  1.1  skrll }
    577  1.1  skrll 
    578  1.1  skrll static bfd_boolean
    579  1.1  skrll cris_elf_grok_psinfo (abfd, note)
    580  1.1  skrll      bfd *abfd;
    581  1.1  skrll      Elf_Internal_Note *note;
    582  1.1  skrll {
    583  1.1  skrll   if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
    584  1.1  skrll     switch (note->descsz)
    585  1.1  skrll       {
    586  1.1  skrll       default:
    587  1.1  skrll 	return FALSE;
    588  1.1  skrll 
    589  1.1  skrll       case 124:		/* Linux/CRISv32 elf_prpsinfo */
    590  1.1  skrll 	elf_tdata (abfd)->core_program
    591  1.1  skrll 	  = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
    592  1.1  skrll 	elf_tdata (abfd)->core_command
    593  1.1  skrll 	  = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
    594  1.1  skrll       }
    595  1.1  skrll   else
    596  1.1  skrll     switch (note->descsz)
    597  1.1  skrll       {
    598  1.1  skrll       default:
    599  1.1  skrll 	return FALSE;
    600  1.1  skrll 
    601  1.1  skrll       case 124:		/* Linux/CRIS elf_prpsinfo */
    602  1.1  skrll 	elf_tdata (abfd)->core_program
    603  1.1  skrll 	  = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
    604  1.1  skrll 	elf_tdata (abfd)->core_command
    605  1.1  skrll 	  = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
    606  1.1  skrll       }
    607  1.1  skrll 
    608  1.1  skrll   /* Note that for some reason, a spurious space is tacked
    609  1.1  skrll      onto the end of the args in some (at least one anyway)
    610  1.1  skrll      implementations, so strip it off if it exists.  */
    611  1.1  skrll 
    612  1.1  skrll   {
    613  1.1  skrll     char *command = elf_tdata (abfd)->core_command;
    614  1.1  skrll     int n = strlen (command);
    615  1.1  skrll 
    616  1.1  skrll     if (0 < n && command[n - 1] == ' ')
    617  1.1  skrll       command[n - 1] = '\0';
    618  1.1  skrll   }
    619  1.1  skrll 
    620  1.1  skrll   return TRUE;
    621  1.1  skrll }
    622  1.1  skrll 
    623  1.1  skrll /* The name of the dynamic interpreter.  This is put in the .interp
    625  1.1  skrll    section.  */
    626  1.1  skrll 
    627  1.1  skrll #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
    628  1.1  skrll 
    629  1.1  skrll /* The size in bytes of an entry in the procedure linkage table.  */
    630  1.1  skrll 
    631  1.1  skrll #define PLT_ENTRY_SIZE 20
    632  1.1  skrll #define PLT_ENTRY_SIZE_V32 26
    633  1.1  skrll 
    634  1.1  skrll /* The first entry in an absolute procedure linkage table looks like this.  */
    635  1.1  skrll 
    636  1.1  skrll static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] =
    637  1.1  skrll {
    638  1.1  skrll   0xfc, 0xe1,
    639  1.1  skrll   0x7e, 0x7e,	/* push mof.  */
    640  1.1  skrll   0x7f, 0x0d,   /*  (dip [pc+]) */
    641  1.1  skrll   0, 0, 0, 0,	/*  Replaced with address of .got + 4.  */
    642  1.1  skrll   0x30, 0x7a,	/* move [...],mof */
    643  1.1  skrll   0x7f, 0x0d,   /*  (dip [pc+]) */
    644  1.1  skrll   0, 0, 0, 0,	/*  Replaced with address of .got + 8.  */
    645  1.1  skrll   0x30, 0x09	/* jump [...] */
    646  1.1  skrll };
    647  1.1  skrll 
    648  1.1  skrll static const bfd_byte elf_cris_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
    649  1.1  skrll {
    650  1.1  skrll   0x84, 0xe2,	/* subq 4,$sp */
    651  1.1  skrll   0x6f, 0xfe,	/* move.d 0,$acr */
    652  1.1  skrll   0, 0, 0, 0,	/*  Replaced by address of .got + 4.  */
    653  1.1  skrll   0x7e, 0x7a,	/* move $mof,[$sp] */
    654  1.1  skrll   0x3f, 0x7a,	/* move [$acr],$mof */
    655  1.1  skrll   0x04, 0xf2,	/* addq 4,acr */
    656  1.1  skrll   0x6f, 0xfa,	/* move.d [$acr],$acr */
    657  1.1  skrll   0xbf, 0x09,	/* jump $acr */
    658  1.1  skrll   0xb0, 0x05,	/* nop */
    659  1.1  skrll   0, 0		/*  Pad out to 26 bytes.  */
    660  1.1  skrll };
    661  1.1  skrll 
    662  1.1  skrll /* Subsequent entries in an absolute procedure linkage table look like
    663  1.1  skrll    this.  */
    664  1.1  skrll 
    665  1.1  skrll static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] =
    666  1.1  skrll {
    667  1.1  skrll   0x7f, 0x0d,   /*  (dip [pc+]) */
    668  1.1  skrll   0, 0, 0, 0,	/*  Replaced with address of this symbol in .got.  */
    669  1.1  skrll   0x30, 0x09,	/* jump [...] */
    670  1.1  skrll   0x3f,	 0x7e,	/* move [pc+],mof */
    671  1.1  skrll   0, 0, 0, 0,	/*  Replaced with offset into relocation table.  */
    672  1.1  skrll   0x2f, 0xfe,	/* add.d [pc+],pc */
    673  1.1  skrll   0xec, 0xff,
    674  1.1  skrll   0xff, 0xff	/*  Replaced with offset to start of .plt.  */
    675  1.1  skrll };
    676  1.1  skrll 
    677  1.1  skrll static const bfd_byte elf_cris_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
    678  1.1  skrll {
    679  1.1  skrll   0x6f, 0xfe,	/* move.d 0,$acr */
    680  1.1  skrll   0, 0, 0, 0,	/*  Replaced with address of this symbol in .got.  */
    681  1.1  skrll   0x6f, 0xfa,   /* move.d [$acr],$acr */
    682  1.1  skrll   0xbf, 0x09,   /* jump $acr */
    683  1.1  skrll   0xb0, 0x05,	/* nop */
    684  1.1  skrll   0x3f, 0x7e,	/* move 0,mof */
    685  1.1  skrll   0, 0, 0, 0,	/*  Replaced with offset into relocation table. */
    686  1.1  skrll   0xbf, 0x0e,	/* ba start_of_plt0_entry */
    687  1.1  skrll   0, 0, 0, 0,	/*  Replaced with offset to plt0 entry.  */
    688  1.1  skrll   0xb0, 0x05	/* nop */
    689  1.1  skrll };
    690  1.1  skrll 
    691  1.1  skrll /* The first entry in a PIC procedure linkage table looks like this.  */
    692  1.1  skrll 
    693  1.1  skrll static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
    694  1.1  skrll {
    695  1.1  skrll   0xfc, 0xe1, 0x7e, 0x7e,	/* push mof */
    696  1.1  skrll   0x04, 0x01, 0x30, 0x7a,	/* move [r0+4],mof */
    697  1.1  skrll   0x08, 0x01, 0x30, 0x09,	/* jump [r0+8] */
    698  1.1  skrll   0, 0, 0, 0, 0, 0, 0, 0,	/*  Pad out to 20 bytes.  */
    699  1.1  skrll };
    700  1.1  skrll 
    701  1.1  skrll static const bfd_byte elf_cris_pic_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
    702  1.1  skrll {
    703  1.1  skrll   0x84, 0xe2,	/* subq 4,$sp */
    704  1.1  skrll   0x04, 0x01,	/* addoq 4,$r0,$acr */
    705  1.1  skrll   0x7e, 0x7a,	/* move $mof,[$sp] */
    706  1.1  skrll   0x3f, 0x7a,	/* move [$acr],$mof */
    707  1.1  skrll   0x04, 0xf2,	/* addq 4,$acr */
    708  1.1  skrll   0x6f, 0xfa,	/* move.d [$acr],$acr */
    709  1.1  skrll   0xbf, 0x09,	/* jump $acr */
    710  1.1  skrll   0xb0, 0x05,	/* nop */
    711  1.1  skrll   0, 0,		/*  Pad out to 26 bytes.  */
    712  1.1  skrll   0, 0, 0, 0,
    713  1.1  skrll   0, 0, 0, 0
    714  1.1  skrll };
    715  1.1  skrll 
    716  1.1  skrll /* Subsequent entries in a PIC procedure linkage table look like this.  */
    717  1.1  skrll 
    718  1.1  skrll static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
    719  1.1  skrll {
    720  1.1  skrll   0x6f, 0x0d,   /*  (bdap [pc+].d,r0) */
    721  1.1  skrll   0, 0, 0, 0,	/*  Replaced with offset of this symbol in .got.  */
    722  1.1  skrll   0x30, 0x09,	/* jump [...] */
    723  1.1  skrll   0x3f, 0x7e,	/* move [pc+],mof */
    724  1.1  skrll   0, 0, 0, 0,	/*  Replaced with offset into relocation table.  */
    725  1.1  skrll   0x2f, 0xfe,	/* add.d [pc+],pc */
    726  1.1  skrll   0xec, 0xff,	/*  Replaced with offset to start of .plt.  */
    727  1.1  skrll   0xff, 0xff
    728  1.1  skrll };
    729  1.1  skrll 
    730  1.1  skrll static const bfd_byte elf_cris_pic_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
    731  1.1  skrll {
    732  1.1  skrll   0x6f, 0x0d,	/* addo.d 0,$r0,$acr */
    733  1.1  skrll   0, 0, 0, 0,	/*  Replaced with offset of this symbol in .got.  */
    734  1.1  skrll   0x6f, 0xfa,	/* move.d [$acr],$acr */
    735  1.1  skrll   0xbf, 0x09,	/* jump $acr */
    736  1.1  skrll   0xb0, 0x05,	/* nop */
    737  1.1  skrll   0x3f, 0x7e,	/* move relocoffs,$mof */
    738  1.1  skrll   0, 0, 0, 0,	/*  Replaced with offset into relocation table.  */
    739  1.1  skrll   0xbf, 0x0e,	/* ba start_of_plt */
    740  1.1  skrll   0, 0, 0, 0,	/*  Replaced with offset to start of .plt.  */
    741  1.1  skrll   0xb0, 0x05	/* nop */
    742  1.1  skrll };
    743  1.1  skrll 
    744  1.1  skrll /* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
    746  1.1  skrll    (and most other PIC/shlib stuff).  Check that we don't drift away
    747  1.1  skrll    without reason.
    748  1.1  skrll 
    749  1.1  skrll    The CRIS linker, like the m68k and i386 linkers (and probably the rest
    750  1.1  skrll    too) needs to keep track of the number of relocs that it decides to
    751  1.1  skrll    copy in check_relocs for each symbol.  This is so that it can discard
    752  1.1  skrll    PC relative relocs if it doesn't need them when linking with
    753  1.1  skrll    -Bsymbolic.  We store the information in a field extending the regular
    754  1.1  skrll    ELF linker hash table.  */
    755  1.1  skrll 
    756  1.1  skrll /* This structure keeps track of the number of PC relative relocs we have
    757  1.1  skrll    copied for a given symbol.  */
    758  1.1  skrll 
    759  1.1  skrll struct elf_cris_pcrel_relocs_copied
    760  1.1  skrll {
    761  1.1  skrll   /* Next section.  */
    762  1.1  skrll   struct elf_cris_pcrel_relocs_copied *next;
    763  1.1  skrll   /* A section in dynobj.  */
    764  1.1  skrll   asection *section;
    765  1.1  skrll   /* Number of relocs copied in this section.  */
    766  1.1  skrll   bfd_size_type count;
    767  1.1  skrll };
    768  1.1  skrll 
    769  1.1  skrll /* CRIS ELF linker hash entry.  */
    770  1.1  skrll 
    771  1.1  skrll struct elf_cris_link_hash_entry
    772  1.1  skrll {
    773  1.1  skrll   struct elf_link_hash_entry root;
    774  1.1  skrll 
    775  1.1  skrll   /* Number of PC relative relocs copied for this symbol.  */
    776  1.1  skrll   struct elf_cris_pcrel_relocs_copied *pcrel_relocs_copied;
    777  1.1  skrll 
    778  1.1  skrll   /* The GOTPLT references are CRIS-specific; the goal is to avoid having
    779  1.1  skrll      both a general GOT and a PLT-specific GOT entry for the same symbol,
    780  1.1  skrll      when it is referenced both as a function and as a function pointer.
    781  1.1  skrll 
    782  1.1  skrll      Number of GOTPLT references for a function.  */
    783  1.1  skrll   bfd_signed_vma gotplt_refcount;
    784  1.1  skrll 
    785  1.1  skrll   /* Actual GOTPLT index for this symbol, if applicable, or zero if not
    786  1.1  skrll      (zero is never used as an index).  FIXME: We should be able to fold
    787  1.1  skrll      this with gotplt_refcount in a union, like the got and plt unions in
    788  1.1  skrll      elf_link_hash_entry.  */
    789  1.1  skrll   bfd_size_type gotplt_offset;
    790  1.1  skrll };
    791  1.1  skrll 
    792  1.1  skrll /* CRIS ELF linker hash table.  */
    793  1.1  skrll 
    794  1.1  skrll struct elf_cris_link_hash_table
    795  1.1  skrll {
    796  1.1  skrll   struct elf_link_hash_table root;
    797  1.1  skrll 
    798  1.1  skrll   /* We can't use the PLT offset and calculate to get the GOTPLT offset,
    799  1.1  skrll      since we try and avoid creating GOTPLT:s when there's already a GOT.
    800  1.1  skrll      Instead, we keep and update the next available index here.  */
    801  1.1  skrll   bfd_size_type next_gotplt_entry;
    802  1.1  skrll };
    803  1.1  skrll 
    804  1.1  skrll /* Traverse a CRIS ELF linker hash table.  */
    805  1.1  skrll 
    806  1.1  skrll #define elf_cris_link_hash_traverse(table, func, info)			\
    807  1.1  skrll   (elf_link_hash_traverse						\
    808  1.1  skrll    (&(table)->root,							\
    809  1.1  skrll     (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
    810  1.1  skrll     (info)))
    811  1.1  skrll 
    812  1.1  skrll /* Get the CRIS ELF linker hash table from a link_info structure.  */
    813  1.1  skrll 
    814  1.1  skrll #define elf_cris_hash_table(p) \
    815  1.1  skrll   ((struct elf_cris_link_hash_table *) (p)->hash)
    816  1.1  skrll 
    817  1.1  skrll /* Create an entry in a CRIS ELF linker hash table.  */
    818  1.1  skrll 
    819  1.1  skrll static struct bfd_hash_entry *
    820  1.1  skrll elf_cris_link_hash_newfunc (entry, table, string)
    821  1.1  skrll      struct bfd_hash_entry *entry;
    822  1.1  skrll      struct bfd_hash_table *table;
    823  1.1  skrll      const char *string;
    824  1.1  skrll {
    825  1.1  skrll   struct elf_cris_link_hash_entry *ret =
    826  1.1  skrll     (struct elf_cris_link_hash_entry *) entry;
    827  1.1  skrll 
    828  1.1  skrll   /* Allocate the structure if it has not already been allocated by a
    829  1.1  skrll      subclass.  */
    830  1.1  skrll   if (ret == (struct elf_cris_link_hash_entry *) NULL)
    831  1.1  skrll     ret = ((struct elf_cris_link_hash_entry *)
    832  1.1  skrll 	   bfd_hash_allocate (table,
    833  1.1  skrll 			      sizeof (struct elf_cris_link_hash_entry)));
    834  1.1  skrll   if (ret == (struct elf_cris_link_hash_entry *) NULL)
    835  1.1  skrll     return (struct bfd_hash_entry *) ret;
    836  1.1  skrll 
    837  1.1  skrll   /* Call the allocation method of the superclass.  */
    838  1.1  skrll   ret = ((struct elf_cris_link_hash_entry *)
    839  1.1  skrll 	 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
    840  1.1  skrll 				     table, string));
    841  1.1  skrll   if (ret != (struct elf_cris_link_hash_entry *) NULL)
    842  1.1  skrll     {
    843  1.1  skrll       ret->pcrel_relocs_copied = NULL;
    844  1.1  skrll       ret->gotplt_refcount = 0;
    845  1.1  skrll       ret->gotplt_offset = 0;
    846  1.1  skrll     }
    847  1.1  skrll 
    848  1.1  skrll   return (struct bfd_hash_entry *) ret;
    849  1.1  skrll }
    850  1.1  skrll 
    851  1.1  skrll /* Create a CRIS ELF linker hash table.  */
    852  1.1  skrll 
    853  1.1  skrll static struct bfd_link_hash_table *
    854  1.1  skrll elf_cris_link_hash_table_create (abfd)
    855  1.1  skrll      bfd *abfd;
    856  1.1  skrll {
    857  1.1  skrll   struct elf_cris_link_hash_table *ret;
    858  1.1  skrll   bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);
    859  1.1  skrll 
    860  1.1  skrll   ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
    861  1.1  skrll   if (ret == (struct elf_cris_link_hash_table *) NULL)
    862  1.1  skrll     return NULL;
    863  1.1  skrll 
    864  1.1  skrll   if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
    865  1.1  skrll 				      elf_cris_link_hash_newfunc,
    866  1.1  skrll 				      sizeof (struct elf_cris_link_hash_entry)))
    867  1.1  skrll     {
    868  1.1  skrll       free (ret);
    869  1.1  skrll       return NULL;
    870  1.1  skrll     }
    871  1.1  skrll 
    872  1.1  skrll   /* Initialize to skip over the first three entries in the gotplt; they
    873  1.1  skrll      are used for run-time symbol evaluation.  */
    874  1.1  skrll   ret->next_gotplt_entry = 12;
    875  1.1  skrll 
    876  1.1  skrll   return &ret->root.root;
    877  1.1  skrll }
    878  1.1  skrll 
    879  1.1  skrll /* Perform a single relocation.  By default we use the standard BFD
    881  1.1  skrll    routines, with a few tweaks.  */
    882  1.1  skrll 
    883  1.1  skrll static bfd_reloc_status_type
    884  1.1  skrll cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
    885  1.1  skrll 			  relocation)
    886  1.1  skrll      reloc_howto_type *  howto;
    887  1.1  skrll      bfd *               input_bfd;
    888  1.1  skrll      asection *          input_section;
    889  1.1  skrll      bfd_byte *          contents;
    890  1.1  skrll      Elf_Internal_Rela * rel;
    891  1.1  skrll      bfd_vma             relocation;
    892  1.1  skrll {
    893  1.1  skrll   bfd_reloc_status_type r;
    894  1.1  skrll 
    895  1.1  skrll   /* PC-relative relocations are relative to the position *after*
    896  1.1  skrll      the reloc.  Note that for R_CRIS_8_PCREL the adjustment is
    897  1.1  skrll      not a single byte, since PC must be 16-bit-aligned.  */
    898  1.1  skrll   switch (ELF32_R_TYPE (rel->r_info))
    899  1.1  skrll     {
    900  1.1  skrll       /* Check that the 16-bit GOT relocs are positive.  */
    901  1.1  skrll     case R_CRIS_16_GOTPLT:
    902  1.1  skrll     case R_CRIS_16_GOT:
    903  1.1  skrll       if ((bfd_signed_vma) relocation < 0)
    904  1.1  skrll 	return bfd_reloc_overflow;
    905  1.1  skrll       break;
    906  1.1  skrll 
    907  1.1  skrll     case R_CRIS_32_PLT_PCREL:
    908  1.1  skrll     case R_CRIS_32_PCREL:
    909  1.1  skrll       relocation -= 2;
    910  1.1  skrll       /* Fall through.  */
    911  1.1  skrll     case R_CRIS_8_PCREL:
    912  1.1  skrll     case R_CRIS_16_PCREL:
    913  1.1  skrll       relocation -= 2;
    914  1.1  skrll       break;
    915  1.1  skrll 
    916  1.1  skrll     default:
    917  1.1  skrll       break;
    918  1.1  skrll     }
    919  1.1  skrll 
    920  1.1  skrll   r = _bfd_final_link_relocate (howto, input_bfd, input_section,
    921  1.1  skrll 				contents, rel->r_offset,
    922  1.1  skrll 				relocation, rel->r_addend);
    923  1.1  skrll   return r;
    924  1.1  skrll }
    925  1.1  skrll 
    926  1.1  skrll /* Relocate an CRIS ELF section.  See elf32-fr30.c, from where this was
    928  1.1  skrll    copied, for further comments.  */
    929  1.1  skrll 
    930  1.1  skrll static bfd_boolean
    931  1.1  skrll cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
    932  1.1  skrll 			   contents, relocs, local_syms, local_sections)
    933  1.1  skrll      bfd *output_bfd ATTRIBUTE_UNUSED;
    934  1.1  skrll      struct bfd_link_info *info;
    935  1.1  skrll      bfd *input_bfd;
    936  1.1  skrll      asection *input_section;
    937  1.1  skrll      bfd_byte *contents;
    938  1.1  skrll      Elf_Internal_Rela *relocs;
    939  1.1  skrll      Elf_Internal_Sym *local_syms;
    940  1.1  skrll      asection **local_sections;
    941  1.1  skrll {
    942  1.1  skrll   bfd *dynobj;
    943  1.1  skrll   Elf_Internal_Shdr *symtab_hdr;
    944  1.1  skrll   struct elf_link_hash_entry **sym_hashes;
    945  1.1  skrll   bfd_vma *local_got_offsets;
    946  1.1  skrll   asection *sgot;
    947  1.1  skrll   asection *splt;
    948  1.1  skrll   asection *sreloc;
    949  1.1  skrll   Elf_Internal_Rela *rel;
    950  1.1  skrll   Elf_Internal_Rela *relend;
    951  1.1  skrll 
    952  1.1  skrll   dynobj = elf_hash_table (info)->dynobj;
    953  1.1  skrll   local_got_offsets = elf_local_got_offsets (input_bfd);
    954  1.1  skrll   symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
    955  1.1  skrll   sym_hashes = elf_sym_hashes (input_bfd);
    956  1.1  skrll   relend     = relocs + input_section->reloc_count;
    957  1.1  skrll 
    958  1.1  skrll   sgot = NULL;
    959  1.1  skrll   splt = NULL;
    960  1.1  skrll   sreloc = NULL;
    961  1.1  skrll 
    962  1.1  skrll   if (dynobj != NULL)
    963  1.1  skrll     {
    964  1.1  skrll       splt = bfd_get_section_by_name (dynobj, ".plt");
    965  1.1  skrll       sgot = bfd_get_section_by_name (dynobj, ".got");
    966  1.1  skrll     }
    967  1.1  skrll 
    968  1.1  skrll   for (rel = relocs; rel < relend; rel ++)
    969  1.1  skrll     {
    970  1.1  skrll       reloc_howto_type *howto;
    971  1.1  skrll       unsigned long r_symndx;
    972  1.1  skrll       Elf_Internal_Sym *sym;
    973  1.1  skrll       asection *sec;
    974  1.1  skrll       struct elf_link_hash_entry *h;
    975  1.1  skrll       bfd_vma relocation;
    976  1.1  skrll       bfd_reloc_status_type r;
    977  1.1  skrll       const char *symname = NULL;
    978  1.1  skrll       int r_type;
    979  1.1  skrll 
    980  1.1  skrll       r_type = ELF32_R_TYPE (rel->r_info);
    981  1.1  skrll 
    982  1.1  skrll       if (   r_type == R_CRIS_GNU_VTINHERIT
    983  1.1  skrll 	  || r_type == R_CRIS_GNU_VTENTRY)
    984  1.1  skrll 	continue;
    985  1.1  skrll 
    986  1.1  skrll       r_symndx = ELF32_R_SYM (rel->r_info);
    987  1.1  skrll       howto  = cris_elf_howto_table + r_type;
    988  1.1  skrll       h      = NULL;
    989  1.1  skrll       sym    = NULL;
    990  1.1  skrll       sec    = NULL;
    991  1.1  skrll 
    992  1.1  skrll       if (r_symndx < symtab_hdr->sh_info)
    993  1.1  skrll 	{
    994  1.1  skrll 	  sym = local_syms + r_symndx;
    995  1.1  skrll 	  sec = local_sections [r_symndx];
    996  1.1  skrll 	  relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
    997  1.1  skrll 
    998  1.1  skrll 	  symname = (bfd_elf_string_from_elf_section
    999  1.1  skrll 		     (input_bfd, symtab_hdr->sh_link, sym->st_name));
   1000  1.1  skrll 	  if (symname == NULL)
   1001  1.1  skrll 	    symname = bfd_section_name (input_bfd, sec);
   1002  1.1  skrll 	}
   1003  1.1  skrll       else
   1004  1.1  skrll 	{
   1005  1.1  skrll 	  bfd_boolean warned;
   1006  1.1  skrll 	  bfd_boolean unresolved_reloc;
   1007  1.1  skrll 
   1008  1.1  skrll 	  RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
   1009  1.1  skrll 				   r_symndx, symtab_hdr, sym_hashes,
   1010  1.1  skrll 				   h, sec, relocation,
   1011  1.1  skrll 				   unresolved_reloc, warned);
   1012  1.1  skrll 
   1013  1.1  skrll 	  if (unresolved_reloc
   1014  1.1  skrll 	      /* Perhaps we should detect the cases that
   1015  1.1  skrll 		 sec->output_section is expected to be NULL like i386 and
   1016  1.1  skrll 		 m68k, but apparently (and according to elfxx-ia64.c) all
   1017  1.1  skrll 		 valid cases are where the symbol is defined in a shared
   1018  1.1  skrll 		 object which we link dynamically against.  This includes
   1019  1.1  skrll 		 PLT relocs for which we've created a PLT entry and other
   1020  1.1  skrll 		 relocs for which we're prepared to create dynamic
   1021  1.1  skrll 		 relocations.
   1022  1.1  skrll 
   1023  1.1  skrll 		 For now, new situations cause us to just err when
   1024  1.1  skrll 		 sec->output_offset is NULL but the object with the symbol
   1025  1.1  skrll 		 is *not* dynamically linked against.  Thus this will
   1026  1.1  skrll 		 automatically remind us so we can see if there are other
   1027  1.1  skrll 		 valid cases we need to revisit.  */
   1028  1.1  skrll 	      && (sec->owner->flags & DYNAMIC) != 0)
   1029  1.1  skrll 	    relocation = 0;
   1030  1.1  skrll 
   1031  1.1  skrll 	  else if (h->root.type == bfd_link_hash_defined
   1032  1.1  skrll 		   || h->root.type == bfd_link_hash_defweak)
   1033  1.1  skrll 	    {
   1034  1.1  skrll 	      /* Here follow the cases where the relocation value must
   1035  1.1  skrll 		 be zero (or when further handling is simplified when
   1036  1.1  skrll 		 zero).  I can't claim to understand the various
   1037  1.1  skrll 		 conditions and they weren't described in the files
   1038  1.1  skrll 		 where I copied them from (elf32-m68k.c and
   1039  1.1  skrll 		 elf32-i386.c), but let's mention examples of where
   1040  1.1  skrll 		 they happen.  FIXME: Perhaps define and use a
   1041  1.1  skrll 		 dynamic_symbol_p function like ia64.
   1042  1.1  skrll 
   1043  1.1  skrll 		 - When creating a shared library, we can have an
   1044  1.1  skrll 		 ordinary relocation for a symbol defined in a shared
   1045  1.1  skrll 		 library (perhaps the one we create).  We then make
   1046  1.1  skrll 		 the relocation value zero, as the value seen now will
   1047  1.1  skrll 		 be added into the relocation addend in this shared
   1048  1.1  skrll 		 library, but must be handled only at dynamic-link
   1049  1.1  skrll 		 time.  FIXME: Not sure this example covers the
   1050  1.1  skrll 		 h->elf_link_hash_flags test, though it's there in
   1051  1.1  skrll 		 other targets.  */
   1052  1.1  skrll 	      if (info->shared
   1053  1.1  skrll 		  && ((! info->symbolic && h->dynindx != -1)
   1054  1.1  skrll 		      || !h->def_regular)
   1055  1.1  skrll 		  && (input_section->flags & SEC_ALLOC) != 0
   1056  1.1  skrll 		  && (r_type == R_CRIS_8
   1057  1.1  skrll 		      || r_type == R_CRIS_16
   1058  1.1  skrll 		      || r_type == R_CRIS_32
   1059  1.1  skrll 		      || r_type == R_CRIS_8_PCREL
   1060  1.1  skrll 		      || r_type == R_CRIS_16_PCREL
   1061  1.1  skrll 		      || r_type == R_CRIS_32_PCREL))
   1062  1.1  skrll 		relocation = 0;
   1063  1.1  skrll 	      else if (!info->relocatable && unresolved_reloc)
   1064  1.1  skrll 		{
   1065  1.1  skrll 		  _bfd_error_handler
   1066  1.1  skrll 		    (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
   1067  1.1  skrll 		     input_bfd,
   1068  1.1  skrll 		     input_section,
   1069  1.1  skrll 		     cris_elf_howto_table[r_type].name,
   1070  1.1  skrll 		     symname);
   1071  1.1  skrll 		  bfd_set_error (bfd_error_bad_value);
   1072  1.1  skrll 		  return FALSE;
   1073  1.1  skrll 		}
   1074  1.1  skrll 	    }
   1075  1.1  skrll 	}
   1076  1.1  skrll 
   1077  1.1  skrll       if (sec != NULL && elf_discarded_section (sec))
   1078  1.1  skrll 	{
   1079  1.1  skrll 	  /* For relocs against symbols from removed linkonce sections,
   1080  1.1  skrll 	     or sections discarded by a linker script, we just want the
   1081  1.1  skrll 	     section contents zeroed.  Avoid any special processing.  */
   1082  1.1  skrll 	  _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
   1083  1.1  skrll 	  rel->r_info = 0;
   1084  1.1  skrll 	  rel->r_addend = 0;
   1085  1.1  skrll 	  continue;
   1086  1.1  skrll 	}
   1087  1.1  skrll 
   1088  1.1  skrll       if (info->relocatable)
   1089  1.1  skrll 	continue;
   1090  1.1  skrll 
   1091  1.1  skrll       switch (r_type)
   1092  1.1  skrll 	{
   1093  1.1  skrll 	case R_CRIS_16_GOTPLT:
   1094  1.1  skrll 	case R_CRIS_32_GOTPLT:
   1095  1.1  skrll 	  /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
   1096  1.1  skrll 	     but we require a PLT, and the PLT handling will take care of
   1097  1.1  skrll 	     filling in the PLT-specific GOT entry.  For the GOT offset,
   1098  1.1  skrll 	     calculate it as we do when filling it in for the .got.plt
   1099  1.1  skrll 	     section.  If we don't have a PLT, punt to GOT handling.  */
   1100  1.1  skrll 	  if (h != NULL
   1101  1.1  skrll 	      && ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0)
   1102  1.1  skrll 	    {
   1103  1.1  skrll 	      asection *sgotplt
   1104  1.1  skrll 		= bfd_get_section_by_name (dynobj, ".got.plt");
   1105  1.1  skrll 	      bfd_vma got_offset;
   1106  1.1  skrll 
   1107  1.1  skrll 	      BFD_ASSERT (h->dynindx != -1);
   1108  1.1  skrll 	      BFD_ASSERT (sgotplt != NULL);
   1109  1.1  skrll 
   1110  1.1  skrll 	      got_offset
   1111  1.1  skrll 		= ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
   1112  1.1  skrll 
   1113  1.1  skrll 	      relocation = got_offset;
   1114  1.1  skrll 	      break;
   1115  1.1  skrll 	    }
   1116  1.1  skrll 
   1117  1.1  skrll 	  /* We didn't make a PLT entry for this symbol.  Maybe everything is
   1118  1.1  skrll 	     folded into the GOT.  Other than folding, this happens when
   1119  1.1  skrll 	     statically linking PIC code, or when using -Bsymbolic.  Check
   1120  1.1  skrll 	     that we instead have a GOT entry as done for us by
   1121  1.1  skrll 	     elf_cris_adjust_dynamic_symbol, and drop through into the
   1122  1.1  skrll 	     ordinary GOT cases.  This must not happen for the
   1123  1.1  skrll 	     executable, because any reference it does to a function
   1124  1.1  skrll 	     that is satisfied by a DSO must generate a PLT.  We assume
   1125  1.1  skrll 	     these call-specific relocs don't address non-functions.  */
   1126  1.1  skrll 	  if (h != NULL
   1127  1.1  skrll 	      && (h->got.offset == (bfd_vma) -1
   1128  1.1  skrll 		  || (!info->shared
   1129  1.1  skrll 		      && !(h->def_regular
   1130  1.1  skrll 			   || (!h->def_dynamic
   1131  1.1  skrll 			       && h->root.type == bfd_link_hash_undefweak)))))
   1132  1.1  skrll 	    {
   1133  1.1  skrll 	      (*_bfd_error_handler)
   1134  1.1  skrll 		((h->got.offset == (bfd_vma) -1)
   1135  1.1  skrll 		 ? _("%B, section %A: No PLT nor GOT for relocation %s"
   1136  1.1  skrll 		     " against symbol `%s'")
   1137  1.1  skrll 		 : _("%B, section %A: No PLT for relocation %s"
   1138  1.1  skrll 		     " against symbol `%s'"),
   1139  1.1  skrll 		 input_bfd,
   1140  1.1  skrll 		 input_section,
   1141  1.1  skrll 		 cris_elf_howto_table[r_type].name,
   1142  1.1  skrll 		 (symname != NULL && symname[0] != '\0'
   1143  1.1  skrll 		  ? symname : _("[whose name is lost]")));
   1144  1.1  skrll 
   1145  1.1  skrll 	      /* FIXME: Perhaps blaming input is not the right thing to
   1146  1.1  skrll 		 do; this is probably an internal error.  But it is true
   1147  1.1  skrll 		 that we didn't like that particular input.  */
   1148  1.1  skrll 	      bfd_set_error (bfd_error_bad_value);
   1149  1.1  skrll 	      return FALSE;
   1150  1.1  skrll 	    }
   1151  1.1  skrll 	  /* Fall through.  */
   1152  1.1  skrll 
   1153  1.1  skrll 	  /* The size of the actual relocation is not used here; we only
   1154  1.1  skrll 	     fill in the GOT table here.  */
   1155  1.1  skrll 	case R_CRIS_16_GOT:
   1156  1.1  skrll 	case R_CRIS_32_GOT:
   1157  1.1  skrll 	  {
   1158  1.1  skrll 	    bfd_vma off;
   1159  1.1  skrll 
   1160  1.1  skrll 	    /* Note that despite using RELA relocations, the .got contents
   1161  1.1  skrll 	       is always filled in with the link-relative relocation
   1162  1.1  skrll 	       value; the addend.  */
   1163  1.1  skrll 
   1164  1.1  skrll 	    if (h != NULL)
   1165  1.1  skrll 	      {
   1166  1.1  skrll 		off = h->got.offset;
   1167  1.1  skrll 		BFD_ASSERT (off != (bfd_vma) -1);
   1168  1.1  skrll 
   1169  1.1  skrll 		if (!elf_hash_table (info)->dynamic_sections_created
   1170  1.1  skrll 		    || (! info->shared
   1171  1.1  skrll 			&& (h->def_regular
   1172  1.1  skrll 			    || h->type == STT_FUNC
   1173  1.1  skrll 			    || h->needs_plt))
   1174  1.1  skrll 		    || (info->shared
   1175  1.1  skrll 			&& (info->symbolic || h->dynindx == -1)
   1176  1.1  skrll 			&& h->def_regular))
   1177  1.1  skrll 		  {
   1178  1.1  skrll 		    /* This wasn't checked above for ! info->shared, but
   1179  1.1  skrll 		       must hold there if we get here; the symbol must
   1180  1.1  skrll 		       be defined in the regular program or be undefweak
   1181  1.1  skrll 		       or be a function or otherwise need a PLT.  */
   1182  1.1  skrll 		    BFD_ASSERT (!elf_hash_table (info)->dynamic_sections_created
   1183  1.1  skrll 				|| info->shared
   1184  1.1  skrll 				|| h->def_regular
   1185  1.1  skrll 				|| h->type == STT_FUNC
   1186  1.1  skrll 				|| h->needs_plt
   1187  1.1  skrll 				|| h->root.type == bfd_link_hash_undefweak);
   1188  1.1  skrll 
   1189  1.1  skrll 		    /* This is actually a static link, or it is a
   1190  1.1  skrll 		       -Bsymbolic link and the symbol is defined locally,
   1191  1.1  skrll 		       or is undefweak, or the symbol was forced to be
   1192  1.1  skrll 		       local because of a version file, or we're not
   1193  1.1  skrll 		       creating a dynamic object.  We must initialize this
   1194  1.1  skrll 		       entry in the global offset table.  Since the offset
   1195  1.1  skrll 		       must always be a multiple of 4, we use the least
   1196  1.1  skrll 		       significant bit to record whether we have
   1197  1.1  skrll 		       initialized it already.
   1198  1.1  skrll 
   1199  1.1  skrll 		       If this GOT entry should be runtime-initialized, we
   1200  1.1  skrll 		       will create a .rela.got relocation entry to
   1201  1.1  skrll 		       initialize the value.  This is done in the
   1202  1.1  skrll 		       finish_dynamic_symbol routine.  */
   1203  1.1  skrll 		    if ((off & 1) != 0)
   1204  1.1  skrll 		      off &= ~1;
   1205  1.1  skrll 		    else
   1206  1.1  skrll 		      {
   1207  1.1  skrll 			bfd_put_32 (output_bfd, relocation,
   1208  1.1  skrll 				    sgot->contents + off);
   1209  1.1  skrll 			h->got.offset |= 1;
   1210  1.1  skrll 		      }
   1211  1.1  skrll 		  }
   1212  1.1  skrll 	      }
   1213  1.1  skrll 	    else
   1214  1.1  skrll 	      {
   1215  1.1  skrll 		BFD_ASSERT (local_got_offsets != NULL
   1216  1.1  skrll 			    && local_got_offsets[r_symndx] != (bfd_vma) -1);
   1217  1.1  skrll 
   1218  1.1  skrll 		off = local_got_offsets[r_symndx];
   1219  1.1  skrll 
   1220  1.1  skrll 		/* The offset must always be a multiple of 4.  We use
   1221  1.1  skrll 		   the least significant bit to record whether we have
   1222  1.1  skrll 		   already generated the necessary reloc.  */
   1223  1.1  skrll 		if ((off & 1) != 0)
   1224  1.1  skrll 		  off &= ~1;
   1225  1.1  skrll 		else
   1226  1.1  skrll 		  {
   1227  1.1  skrll 		    bfd_put_32 (output_bfd, relocation, sgot->contents + off);
   1228  1.1  skrll 
   1229  1.1  skrll 		    if (info->shared)
   1230  1.1  skrll 		      {
   1231  1.1  skrll 			asection *s;
   1232  1.1  skrll 			Elf_Internal_Rela outrel;
   1233  1.1  skrll 			bfd_byte *loc;
   1234  1.1  skrll 
   1235  1.1  skrll 			s = bfd_get_section_by_name (dynobj, ".rela.got");
   1236  1.1  skrll 			BFD_ASSERT (s != NULL);
   1237  1.1  skrll 
   1238  1.1  skrll 			outrel.r_offset = (sgot->output_section->vma
   1239  1.1  skrll 					   + sgot->output_offset
   1240  1.1  skrll 					   + off);
   1241  1.1  skrll 			outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
   1242  1.1  skrll 			outrel.r_addend = relocation;
   1243  1.1  skrll 			loc = s->contents;
   1244  1.1  skrll 			loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
   1245  1.1  skrll 			bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   1246  1.1  skrll 		      }
   1247  1.1  skrll 
   1248  1.1  skrll 		    local_got_offsets[r_symndx] |= 1;
   1249  1.1  skrll 		  }
   1250  1.1  skrll 	      }
   1251  1.1  skrll 
   1252  1.1  skrll 	    relocation = sgot->output_offset + off;
   1253  1.1  skrll 	    if (rel->r_addend != 0)
   1254  1.1  skrll 	      {
   1255  1.1  skrll 		/* We can't do anything for a relocation which is against
   1256  1.1  skrll 		   a symbol *plus offset*.  GOT holds relocations for
   1257  1.1  skrll 		   symbols.  Make this an error; the compiler isn't
   1258  1.1  skrll 		   allowed to pass us these kinds of things.  */
   1259  1.1  skrll 		if (h == NULL)
   1260  1.1  skrll 		  (*_bfd_error_handler)
   1261  1.1  skrll 		    (_("%B, section %A: relocation %s with non-zero addend %d"
   1262  1.1  skrll 		       " against local symbol"),
   1263  1.1  skrll 		     input_bfd,
   1264  1.1  skrll 		     input_section,
   1265  1.1  skrll 		     cris_elf_howto_table[r_type].name,
   1266  1.1  skrll 		     rel->r_addend);
   1267  1.1  skrll 		else
   1268  1.1  skrll 		  (*_bfd_error_handler)
   1269  1.1  skrll 		    (_("%B, section %A: relocation %s with non-zero addend %d"
   1270  1.1  skrll 		       " against symbol `%s'"),
   1271  1.1  skrll 		     input_bfd,
   1272  1.1  skrll 		     input_section,
   1273  1.1  skrll 		     cris_elf_howto_table[r_type].name,
   1274  1.1  skrll 		     rel->r_addend,
   1275  1.1  skrll 		     symname[0] != '\0' ? symname : _("[whose name is lost]"));
   1276  1.1  skrll 
   1277  1.1  skrll 		bfd_set_error (bfd_error_bad_value);
   1278  1.1  skrll 		return FALSE;
   1279  1.1  skrll 	      }
   1280  1.1  skrll 	  }
   1281  1.1  skrll 	  break;
   1282  1.1  skrll 
   1283  1.1  skrll 	case R_CRIS_32_GOTREL:
   1284  1.1  skrll 	  /* This relocation must only be performed against local symbols.
   1285  1.1  skrll 	     It's also ok when we link a program and the symbol is either
   1286  1.1  skrll 	     defined in an ordinary (non-DSO) object or is undefined weak.  */
   1287  1.1  skrll 	  if (h != NULL
   1288  1.1  skrll 	      && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
   1289  1.1  skrll 	      && !(!info->shared
   1290  1.1  skrll 		   && (h->def_regular
   1291  1.1  skrll 		       || (!h->def_dynamic
   1292  1.1  skrll 			   && h->root.type == bfd_link_hash_undefweak))))
   1293  1.1  skrll 	    {
   1294  1.1  skrll 	      (*_bfd_error_handler)
   1295  1.1  skrll 		(_("%B, section %A: relocation %s is"
   1296  1.1  skrll 		   " not allowed for global symbol: `%s'"),
   1297  1.1  skrll 		 input_bfd,
   1298  1.1  skrll 		 input_section,
   1299  1.1  skrll 		 cris_elf_howto_table[r_type].name,
   1300  1.1  skrll 		 symname);
   1301  1.1  skrll 	      bfd_set_error (bfd_error_bad_value);
   1302  1.1  skrll 	      return FALSE;
   1303  1.1  skrll 	    }
   1304  1.1  skrll 
   1305  1.1  skrll 	  /* This can happen if we get a link error with the input ELF
   1306  1.1  skrll 	     variant mismatching the output variant.  Emit an error so
   1307  1.1  skrll 	     it's noticed if it happens elsewhere.  */
   1308  1.1  skrll 	  if (sgot == NULL)
   1309  1.1  skrll 	    {
   1310  1.1  skrll 	      (*_bfd_error_handler)
   1311  1.1  skrll 		(_("%B, section %A: relocation %s with no GOT created"),
   1312  1.1  skrll 		 input_bfd,
   1313  1.1  skrll 		 input_section,
   1314  1.1  skrll 		 cris_elf_howto_table[r_type].name);
   1315  1.1  skrll 	      bfd_set_error (bfd_error_bad_value);
   1316  1.1  skrll 	      return FALSE;
   1317  1.1  skrll 	    }
   1318  1.1  skrll 
   1319  1.1  skrll 	  /* This relocation is like a PC-relative one, except the
   1320  1.1  skrll 	     reference point is the location of GOT.  Note that
   1321  1.1  skrll 	     sgot->output_offset is not involved in this calculation.  We
   1322  1.1  skrll 	     always want the start of entire .got section, not the
   1323  1.1  skrll 	     position after the reserved header.  */
   1324  1.1  skrll 	  relocation -= sgot->output_section->vma;
   1325  1.1  skrll 	  break;
   1326  1.1  skrll 
   1327  1.1  skrll 	case R_CRIS_32_PLT_PCREL:
   1328  1.1  skrll 	  /* Relocation is to the entry for this symbol in the
   1329  1.1  skrll 	     procedure linkage table.  */
   1330  1.1  skrll 
   1331  1.1  skrll 	  /* Resolve a PLT_PCREL reloc against a local symbol directly,
   1332  1.1  skrll 	     without using the procedure linkage table.  */
   1333  1.1  skrll 	  if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   1334  1.1  skrll 	    break;
   1335  1.1  skrll 
   1336  1.1  skrll 	  if (h->plt.offset == (bfd_vma) -1
   1337  1.1  skrll 	      || splt == NULL)
   1338  1.1  skrll 	    {
   1339  1.1  skrll 	      /* We didn't make a PLT entry for this symbol.  This
   1340  1.1  skrll 		 happens when statically linking PIC code, or when
   1341  1.1  skrll 		 using -Bsymbolic.  */
   1342  1.1  skrll 	      break;
   1343  1.1  skrll 	    }
   1344  1.1  skrll 
   1345  1.1  skrll 	  relocation = (splt->output_section->vma
   1346  1.1  skrll 			+ splt->output_offset
   1347  1.1  skrll 			+ h->plt.offset);
   1348  1.1  skrll 	  break;
   1349  1.1  skrll 
   1350  1.1  skrll 	case R_CRIS_32_PLT_GOTREL:
   1351  1.1  skrll 	  /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
   1352  1.1  skrll 	     start of the .got section.  See also comment at
   1353  1.1  skrll 	     R_CRIS_32_GOT.  */
   1354  1.1  skrll 	  relocation -= sgot->output_section->vma;
   1355  1.1  skrll 
   1356  1.1  skrll 	  /* Resolve a PLT_GOTREL reloc against a local symbol directly,
   1357  1.1  skrll 	     without using the procedure linkage table.  */
   1358  1.1  skrll 	  if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   1359  1.1  skrll 	    break;
   1360  1.1  skrll 
   1361  1.1  skrll 	  if (h->plt.offset == (bfd_vma) -1
   1362  1.1  skrll 	      || splt == NULL)
   1363  1.1  skrll 	    {
   1364  1.1  skrll 	      /* We didn't make a PLT entry for this symbol.  This
   1365  1.1  skrll 		 happens when statically linking PIC code, or when
   1366  1.1  skrll 		 using -Bsymbolic.  */
   1367  1.1  skrll 	      break;
   1368  1.1  skrll 	    }
   1369  1.1  skrll 
   1370  1.1  skrll 	  relocation = (splt->output_section->vma
   1371  1.1  skrll 			+ splt->output_offset
   1372  1.1  skrll 			+ h->plt.offset
   1373  1.1  skrll 			- sgot->output_section->vma);
   1374  1.1  skrll 	  break;
   1375  1.1  skrll 
   1376  1.1  skrll 	case R_CRIS_8_PCREL:
   1377  1.1  skrll 	case R_CRIS_16_PCREL:
   1378  1.1  skrll 	case R_CRIS_32_PCREL:
   1379  1.1  skrll 	  /* If the symbol was local, we need no shlib-specific handling.  */
   1380  1.1  skrll 	  if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   1381  1.1  skrll 	    break;
   1382  1.1  skrll 
   1383  1.1  skrll 	  /* Fall through.  */
   1384  1.1  skrll 	case R_CRIS_8:
   1385  1.1  skrll 	case R_CRIS_16:
   1386  1.1  skrll 	case R_CRIS_32:
   1387  1.1  skrll 	  if (info->shared
   1388  1.1  skrll 	      && r_symndx != 0
   1389  1.1  skrll 	      && (input_section->flags & SEC_ALLOC) != 0
   1390  1.1  skrll 	      && ((r_type != R_CRIS_8_PCREL
   1391  1.1  skrll 		   && r_type != R_CRIS_16_PCREL
   1392  1.1  skrll 		   && r_type != R_CRIS_32_PCREL)
   1393  1.1  skrll 		  || (!info->symbolic
   1394  1.1  skrll 		      || !h->def_regular)))
   1395  1.1  skrll 	    {
   1396  1.1  skrll 	      Elf_Internal_Rela outrel;
   1397  1.1  skrll 	      bfd_byte *loc;
   1398  1.1  skrll 	      bfd_boolean skip, relocate;
   1399  1.1  skrll 
   1400  1.1  skrll 	      /* When generating a shared object, these relocations
   1401  1.1  skrll 		 are copied into the output file to be resolved at run
   1402  1.1  skrll 		 time.  */
   1403  1.1  skrll 
   1404  1.1  skrll 	      if (sreloc == NULL)
   1405  1.1  skrll 		{
   1406  1.1  skrll 		  const char *name;
   1407  1.1  skrll 
   1408  1.1  skrll 		  name = (bfd_elf_string_from_elf_section
   1409  1.1  skrll 			  (input_bfd,
   1410  1.1  skrll 			   elf_elfheader (input_bfd)->e_shstrndx,
   1411  1.1  skrll 			   elf_section_data (input_section)->rel_hdr.sh_name));
   1412  1.1  skrll 		  if (name == NULL)
   1413  1.1  skrll 		    return FALSE;
   1414  1.1  skrll 
   1415  1.1  skrll 		  BFD_ASSERT (CONST_STRNEQ (name, ".rela")
   1416  1.1  skrll 			      && strcmp (bfd_get_section_name (input_bfd,
   1417  1.1  skrll 							       input_section),
   1418  1.1  skrll 					 name + 5) == 0);
   1419  1.1  skrll 
   1420  1.1  skrll 		  sreloc = bfd_get_section_by_name (dynobj, name);
   1421  1.1  skrll 
   1422  1.1  skrll 		  /* That section should have been created in
   1423  1.1  skrll 		     cris_elf_check_relocs, but that function will not be
   1424  1.1  skrll 		     called for objects which fail in
   1425  1.1  skrll 		     cris_elf_merge_private_bfd_data.  */
   1426  1.1  skrll 		  if (sreloc == NULL)
   1427  1.1  skrll 		    {
   1428  1.1  skrll 		      (*_bfd_error_handler)
   1429  1.1  skrll 			(_("%B: Internal inconsistency; no relocation section %s"),
   1430  1.1  skrll 			 input_bfd,
   1431  1.1  skrll 			 name);
   1432  1.1  skrll 
   1433  1.1  skrll 		      bfd_set_error (bfd_error_bad_value);
   1434  1.1  skrll 		      return FALSE;
   1435  1.1  skrll 		    }
   1436  1.1  skrll 		}
   1437  1.1  skrll 
   1438  1.1  skrll 	      skip = FALSE;
   1439  1.1  skrll 	      relocate = FALSE;
   1440  1.1  skrll 
   1441  1.1  skrll 	      outrel.r_offset =
   1442  1.1  skrll 		_bfd_elf_section_offset (output_bfd, info, input_section,
   1443  1.1  skrll 					 rel->r_offset);
   1444  1.1  skrll 	      if (outrel.r_offset == (bfd_vma) -1)
   1445  1.1  skrll 		skip = TRUE;
   1446  1.1  skrll 	      else if (outrel.r_offset == (bfd_vma) -2)
   1447  1.1  skrll 		skip = TRUE, relocate = TRUE;
   1448  1.1  skrll 	      outrel.r_offset += (input_section->output_section->vma
   1449  1.1  skrll 				  + input_section->output_offset);
   1450  1.1  skrll 
   1451  1.1  skrll 	      if (skip)
   1452  1.1  skrll 		memset (&outrel, 0, sizeof outrel);
   1453  1.1  skrll 	      /* h->dynindx may be -1 if the symbol was marked to
   1454  1.1  skrll 		 become local.  */
   1455  1.1  skrll 	      else if (h != NULL
   1456  1.1  skrll 		       && ((! info->symbolic && h->dynindx != -1)
   1457  1.1  skrll 			   || !h->def_regular))
   1458  1.1  skrll 		{
   1459  1.1  skrll 		  BFD_ASSERT (h->dynindx != -1);
   1460  1.1  skrll 		  outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
   1461  1.1  skrll 		  outrel.r_addend = relocation + rel->r_addend;
   1462  1.1  skrll 		}
   1463  1.1  skrll 	      else
   1464  1.1  skrll 		{
   1465  1.1  skrll 		  outrel.r_addend = relocation + rel->r_addend;
   1466  1.1  skrll 
   1467  1.1  skrll 		  if (r_type == R_CRIS_32)
   1468  1.1  skrll 		    {
   1469  1.1  skrll 		      relocate = TRUE;
   1470  1.1  skrll 		      outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
   1471  1.1  skrll 		    }
   1472  1.1  skrll 		  else
   1473  1.1  skrll 		    {
   1474  1.1  skrll 		      long indx;
   1475  1.1  skrll 
   1476  1.1  skrll 		      if (bfd_is_abs_section (sec))
   1477  1.1  skrll 			indx = 0;
   1478  1.1  skrll 		      else if (sec == NULL || sec->owner == NULL)
   1479  1.1  skrll 			{
   1480  1.1  skrll 			  bfd_set_error (bfd_error_bad_value);
   1481  1.1  skrll 			  return FALSE;
   1482  1.1  skrll 			}
   1483  1.1  skrll 		      else
   1484  1.1  skrll 			{
   1485  1.1  skrll 			  asection *osec;
   1486  1.1  skrll 
   1487  1.1  skrll 			  /* We are turning this relocation into one
   1488  1.1  skrll 			     against a section symbol.  It would be
   1489  1.1  skrll 			     proper to subtract the symbol's value,
   1490  1.1  skrll 			     osec->vma, from the emitted reloc addend,
   1491  1.1  skrll 			     but ld.so expects buggy relocs.  */
   1492  1.1  skrll 			  osec = sec->output_section;
   1493  1.1  skrll 			  indx = elf_section_data (osec)->dynindx;
   1494  1.1  skrll 			  if (indx == 0)
   1495  1.1  skrll 			    {
   1496  1.1  skrll 			      struct elf_cris_link_hash_table *htab;
   1497  1.1  skrll 			      htab = elf_cris_hash_table (info);
   1498  1.1  skrll 			      osec = htab->root.text_index_section;
   1499  1.1  skrll 			      indx = elf_section_data (osec)->dynindx;
   1500  1.1  skrll 			    }
   1501  1.1  skrll 			  BFD_ASSERT (indx != 0);
   1502  1.1  skrll 			}
   1503  1.1  skrll 
   1504  1.1  skrll 		      outrel.r_info = ELF32_R_INFO (indx, r_type);
   1505  1.1  skrll 		    }
   1506  1.1  skrll 		}
   1507  1.1  skrll 
   1508  1.1  skrll 	      loc = sreloc->contents;
   1509  1.1  skrll 	      loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
   1510  1.1  skrll 	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
   1511  1.1  skrll 
   1512  1.1  skrll 	      /* This reloc will be computed at runtime, so there's no
   1513  1.1  skrll                  need to do anything now, except for R_CRIS_32 relocations
   1514  1.1  skrll                  that have been turned into R_CRIS_RELATIVE.  */
   1515  1.1  skrll 	      if (!relocate)
   1516  1.1  skrll 		continue;
   1517  1.1  skrll 	    }
   1518  1.1  skrll 
   1519  1.1  skrll 	  break;
   1520  1.1  skrll 	}
   1521  1.1  skrll 
   1522  1.1  skrll       r = cris_final_link_relocate (howto, input_bfd, input_section,
   1523  1.1  skrll 				     contents, rel, relocation);
   1524  1.1  skrll 
   1525  1.1  skrll       if (r != bfd_reloc_ok)
   1526  1.1  skrll 	{
   1527  1.1  skrll 	  const char * msg = (const char *) NULL;
   1528  1.1  skrll 
   1529  1.1  skrll 	  switch (r)
   1530  1.1  skrll 	    {
   1531  1.1  skrll 	    case bfd_reloc_overflow:
   1532  1.1  skrll 	      r = info->callbacks->reloc_overflow
   1533  1.1  skrll 		(info, (h ? &h->root : NULL), symname, howto->name,
   1534  1.1  skrll 		 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
   1535  1.1  skrll 	      break;
   1536  1.1  skrll 
   1537  1.1  skrll 	    case bfd_reloc_undefined:
   1538  1.1  skrll 	      r = info->callbacks->undefined_symbol
   1539  1.1  skrll 		(info, symname, input_bfd, input_section, rel->r_offset,
   1540  1.1  skrll 		 TRUE);
   1541  1.1  skrll 	      break;
   1542  1.1  skrll 
   1543  1.1  skrll 	    case bfd_reloc_outofrange:
   1544  1.1  skrll 	      msg = _("internal error: out of range error");
   1545  1.1  skrll 	      break;
   1546  1.1  skrll 
   1547  1.1  skrll 	    case bfd_reloc_notsupported:
   1548  1.1  skrll 	      msg = _("internal error: unsupported relocation error");
   1549  1.1  skrll 	      break;
   1550  1.1  skrll 
   1551  1.1  skrll 	    case bfd_reloc_dangerous:
   1552  1.1  skrll 	      msg = _("internal error: dangerous relocation");
   1553  1.1  skrll 	      break;
   1554  1.1  skrll 
   1555  1.1  skrll 	    default:
   1556  1.1  skrll 	      msg = _("internal error: unknown error");
   1557  1.1  skrll 	      break;
   1558  1.1  skrll 	    }
   1559  1.1  skrll 
   1560  1.1  skrll 	  if (msg)
   1561  1.1  skrll 	    r = info->callbacks->warning
   1562  1.1  skrll 	      (info, msg, symname, input_bfd, input_section, rel->r_offset);
   1563  1.1  skrll 
   1564  1.1  skrll 	  if (! r)
   1565  1.1  skrll 	    return FALSE;
   1566  1.1  skrll 	}
   1567  1.1  skrll     }
   1568  1.1  skrll 
   1569  1.1  skrll   return TRUE;
   1570  1.1  skrll }
   1571  1.1  skrll 
   1572  1.1  skrll /* Finish up dynamic symbol handling.  We set the contents of various
   1574  1.1  skrll    dynamic sections here.  */
   1575  1.1  skrll 
   1576  1.1  skrll static bfd_boolean
   1577  1.1  skrll elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
   1578  1.1  skrll      bfd *output_bfd;
   1579  1.1  skrll      struct bfd_link_info *info;
   1580  1.1  skrll      struct elf_link_hash_entry *h;
   1581  1.1  skrll      Elf_Internal_Sym *sym;
   1582  1.1  skrll {
   1583  1.1  skrll   bfd *dynobj;
   1584  1.1  skrll 
   1585  1.1  skrll   /* Where in the plt entry to put values.  */
   1586  1.1  skrll   int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
   1587  1.1  skrll 
   1588  1.1  skrll   /* What offset to add to the distance to the first PLT entry for the
   1589  1.1  skrll      value at plt_off3.   */
   1590  1.1  skrll   int plt_off3_value_bias = 4;
   1591  1.1  skrll 
   1592  1.1  skrll   /* Where in the PLT entry the call-dynlink-stub is (happens to be same
   1593  1.1  skrll      for PIC and non-PIC for v32 and pre-v32).  */
   1594  1.1  skrll   int plt_stub_offset = 8;
   1595  1.1  skrll   int plt_entry_size = PLT_ENTRY_SIZE;
   1596  1.1  skrll   const bfd_byte *plt_entry = elf_cris_plt_entry;
   1597  1.1  skrll   const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry;
   1598  1.1  skrll 
   1599  1.1  skrll   /* Adjust the various PLT entry offsets.  */
   1600  1.1  skrll   if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
   1601  1.1  skrll     {
   1602  1.1  skrll       plt_off2 = 14;
   1603  1.1  skrll       plt_off3 = 20;
   1604  1.1  skrll       plt_off3_value_bias = -2;
   1605  1.1  skrll       plt_stub_offset = 12;
   1606  1.1  skrll       plt_entry_size = PLT_ENTRY_SIZE_V32;
   1607  1.1  skrll       plt_entry = elf_cris_plt_entry_v32;
   1608  1.1  skrll       plt_pic_entry = elf_cris_pic_plt_entry_v32;
   1609  1.1  skrll     }
   1610  1.1  skrll 
   1611  1.1  skrll   dynobj = elf_hash_table (info)->dynobj;
   1612  1.1  skrll 
   1613  1.1  skrll   if (h->plt.offset != (bfd_vma) -1)
   1614  1.1  skrll     {
   1615  1.1  skrll       asection *splt;
   1616  1.1  skrll       asection *sgotplt;
   1617  1.1  skrll       asection *sgot;
   1618  1.1  skrll       asection *srela;
   1619  1.1  skrll       bfd_vma got_base;
   1620  1.1  skrll 
   1621  1.1  skrll       bfd_vma gotplt_offset
   1622  1.1  skrll 	= ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
   1623  1.1  skrll       Elf_Internal_Rela rela;
   1624  1.1  skrll       bfd_byte *loc;
   1625  1.1  skrll       bfd_boolean has_gotplt = gotplt_offset != 0;
   1626  1.1  skrll 
   1627  1.1  skrll       /* Get the index in the procedure linkage table which
   1628  1.1  skrll 	 corresponds to this symbol.  This is the index of this symbol
   1629  1.1  skrll 	 in all the symbols for which we are making plt entries.  The
   1630  1.1  skrll 	 first entry in the procedure linkage table is reserved.  */
   1631  1.1  skrll       /* We have to count backwards here, and the result is only valid as
   1632  1.1  skrll 	 an index into .got.plt and its relocations.  FIXME: Constants...  */
   1633  1.1  skrll       bfd_vma gotplt_index = gotplt_offset/4 - 3;
   1634  1.1  skrll 
   1635  1.1  skrll       /* Get the offset into the .got table of the entry that corresponds
   1636  1.1  skrll 	 to this function.  Note that we embed knowledge that "incoming"
   1637  1.1  skrll 	 .got goes after .got.plt in the output without padding (pointer
   1638  1.1  skrll 	 aligned).  However, that knowledge is present in several other
   1639  1.1  skrll 	 places too.  */
   1640  1.1  skrll       bfd_vma got_offset
   1641  1.1  skrll 	= (has_gotplt
   1642  1.1  skrll 	   ? gotplt_offset
   1643  1.1  skrll 	   : h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);
   1644  1.1  skrll 
   1645  1.1  skrll       /* This symbol has an entry in the procedure linkage table.  Set it
   1646  1.1  skrll 	 up.  */
   1647  1.1  skrll 
   1648  1.1  skrll       BFD_ASSERT (h->dynindx != -1);
   1649  1.1  skrll 
   1650  1.1  skrll       splt = bfd_get_section_by_name (dynobj, ".plt");
   1651  1.1  skrll       sgot = bfd_get_section_by_name (dynobj, ".got");
   1652  1.1  skrll       sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
   1653  1.1  skrll       srela = bfd_get_section_by_name (dynobj, ".rela.plt");
   1654  1.1  skrll       BFD_ASSERT (splt != NULL && sgotplt != NULL
   1655  1.1  skrll 		  && (! has_gotplt || srela != NULL));
   1656  1.1  skrll 
   1657  1.1  skrll       got_base = sgotplt->output_section->vma + sgotplt->output_offset;
   1658  1.1  skrll 
   1659  1.1  skrll       /* Fill in the entry in the procedure linkage table.  */
   1660  1.1  skrll       if (! info->shared)
   1661  1.1  skrll 	{
   1662  1.1  skrll 	  memcpy (splt->contents + h->plt.offset, plt_entry,
   1663  1.1  skrll 		  plt_entry_size);
   1664  1.1  skrll 
   1665  1.1  skrll 	  /* We need to enter the absolute address of the GOT entry here.  */
   1666  1.1  skrll 	  bfd_put_32 (output_bfd, got_base + got_offset,
   1667  1.1  skrll 		      splt->contents + h->plt.offset + plt_off1);
   1668  1.1  skrll 	}
   1669  1.1  skrll       else
   1670  1.1  skrll 	{
   1671  1.1  skrll 	  memcpy (splt->contents + h->plt.offset, plt_pic_entry,
   1672  1.1  skrll 		  plt_entry_size);
   1673  1.1  skrll 	  bfd_put_32 (output_bfd, got_offset,
   1674  1.1  skrll 		      splt->contents + h->plt.offset + plt_off1);
   1675  1.1  skrll 	}
   1676  1.1  skrll 
   1677  1.1  skrll       /* Fill in the plt entry and make a relocation, if this is a "real"
   1678  1.1  skrll 	 PLT entry.  */
   1679  1.1  skrll       if (has_gotplt)
   1680  1.1  skrll 	{
   1681  1.1  skrll 	  /* Fill in the offset to the reloc table.  */
   1682  1.1  skrll 	  bfd_put_32 (output_bfd,
   1683  1.1  skrll 		      gotplt_index * sizeof (Elf32_External_Rela),
   1684  1.1  skrll 		      splt->contents + h->plt.offset + plt_off2);
   1685  1.1  skrll 
   1686  1.1  skrll 	  /* Fill in the offset to the first PLT entry, where to "jump".  */
   1687  1.1  skrll 	  bfd_put_32 (output_bfd,
   1688  1.1  skrll 		      - (h->plt.offset + plt_off3 + plt_off3_value_bias),
   1689  1.1  skrll 		      splt->contents + h->plt.offset + plt_off3);
   1690  1.1  skrll 
   1691  1.1  skrll 	  /* Fill in the entry in the global offset table with the address of
   1692  1.1  skrll 	     the relocating stub.  */
   1693  1.1  skrll 	  bfd_put_32 (output_bfd,
   1694  1.1  skrll 		      (splt->output_section->vma
   1695  1.1  skrll 		       + splt->output_offset
   1696  1.1  skrll 		       + h->plt.offset
   1697  1.1  skrll 		       + plt_stub_offset),
   1698  1.1  skrll 		      sgotplt->contents + got_offset);
   1699  1.1  skrll 
   1700  1.1  skrll 	  /* Fill in the entry in the .rela.plt section.  */
   1701  1.1  skrll 	  rela.r_offset = (sgotplt->output_section->vma
   1702  1.1  skrll 			   + sgotplt->output_offset
   1703  1.1  skrll 			   + got_offset);
   1704  1.1  skrll 	  rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
   1705  1.1  skrll 	  rela.r_addend = 0;
   1706  1.1  skrll 	  loc = srela->contents + gotplt_index * sizeof (Elf32_External_Rela);
   1707  1.1  skrll 	  bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   1708  1.1  skrll 	}
   1709  1.1  skrll 
   1710  1.1  skrll       if (!h->def_regular)
   1711  1.1  skrll 	{
   1712  1.1  skrll 	  /* Mark the symbol as undefined, rather than as defined in
   1713  1.1  skrll 	     the .plt section.  Leave the value alone.  */
   1714  1.1  skrll 	  sym->st_shndx = SHN_UNDEF;
   1715  1.1  skrll 
   1716  1.1  skrll 	  /* FIXME: From elf32-sparc.c 2001-02-19 (1.18).  I still don't
   1717  1.1  skrll 	     know whether resetting the value is significant; if it really
   1718  1.1  skrll 	     is, rather than a quirk or bug in the sparc port, then I
   1719  1.1  skrll 	     believe we'd see this elsewhere.  */
   1720  1.1  skrll 	  /* If the symbol is weak, we do need to clear the value.
   1721  1.1  skrll 	     Otherwise, the PLT entry would provide a definition for
   1722  1.1  skrll 	     the symbol even if the symbol wasn't defined anywhere,
   1723  1.1  skrll 	     and so the symbol would never be NULL.  */
   1724  1.1  skrll 	  if (!h->ref_regular_nonweak)
   1725  1.1  skrll 	    sym->st_value = 0;
   1726  1.1  skrll 	}
   1727  1.1  skrll     }
   1728  1.1  skrll 
   1729  1.1  skrll   /* For an ordinary program, we emit .got relocs only for symbols that
   1730  1.1  skrll      are in the dynamic-symbols table and are either defined by the
   1731  1.1  skrll      program or are undefined weak symbols, or are function symbols
   1732  1.1  skrll      where we do not output a PLT: the PLT reloc was output above and all
   1733  1.1  skrll      references to the function symbol are redirected to the PLT.  */
   1734  1.1  skrll   if (h->got.offset != (bfd_vma) -1
   1735  1.1  skrll       && (info->shared
   1736  1.1  skrll 	  || (h->dynindx != -1
   1737  1.1  skrll 	      && h->plt.offset == (bfd_vma) -1
   1738  1.1  skrll 	      && !h->def_regular
   1739  1.1  skrll 	      && h->root.type != bfd_link_hash_undefweak)))
   1740  1.1  skrll     {
   1741  1.1  skrll       asection *sgot;
   1742  1.1  skrll       asection *srela;
   1743  1.1  skrll       Elf_Internal_Rela rela;
   1744  1.1  skrll       bfd_byte *loc;
   1745  1.1  skrll       bfd_byte *where;
   1746  1.1  skrll 
   1747  1.1  skrll       /* This symbol has an entry in the global offset table.  Set it up.  */
   1748  1.1  skrll 
   1749  1.1  skrll       sgot = bfd_get_section_by_name (dynobj, ".got");
   1750  1.1  skrll       srela = bfd_get_section_by_name (dynobj, ".rela.got");
   1751  1.1  skrll       BFD_ASSERT (sgot != NULL && srela != NULL);
   1752  1.1  skrll 
   1753  1.1  skrll       rela.r_offset = (sgot->output_section->vma
   1754  1.1  skrll 		       + sgot->output_offset
   1755  1.1  skrll 		       + (h->got.offset &~ (bfd_vma) 1));
   1756  1.1  skrll 
   1757  1.1  skrll       /* If this is a static link, or it is a -Bsymbolic link and the
   1758  1.1  skrll 	 symbol is defined locally or was forced to be local because
   1759  1.1  skrll 	 of a version file, we just want to emit a RELATIVE reloc.
   1760  1.1  skrll 	 The entry in the global offset table will already have been
   1761  1.1  skrll 	 initialized in the relocate_section function.  */
   1762  1.1  skrll       where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
   1763  1.1  skrll       if (! elf_hash_table (info)->dynamic_sections_created
   1764  1.1  skrll 	  || (info->shared
   1765  1.1  skrll 	      && (info->symbolic || h->dynindx == -1)
   1766  1.1  skrll 	      && h->def_regular))
   1767  1.1  skrll 	{
   1768  1.1  skrll 	  rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
   1769  1.1  skrll 	  rela.r_addend = bfd_get_signed_32 (output_bfd, where);
   1770  1.1  skrll 	}
   1771  1.1  skrll       else
   1772  1.1  skrll 	{
   1773  1.1  skrll 	  bfd_put_32 (output_bfd, (bfd_vma) 0, where);
   1774  1.1  skrll 	  rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
   1775  1.1  skrll 	  rela.r_addend = 0;
   1776  1.1  skrll 	}
   1777  1.1  skrll 
   1778  1.1  skrll       loc = srela->contents;
   1779  1.1  skrll       loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
   1780  1.1  skrll       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   1781  1.1  skrll     }
   1782  1.1  skrll 
   1783  1.1  skrll   if (h->needs_copy)
   1784  1.1  skrll     {
   1785  1.1  skrll       asection *s;
   1786  1.1  skrll       Elf_Internal_Rela rela;
   1787  1.1  skrll       bfd_byte *loc;
   1788  1.1  skrll 
   1789  1.1  skrll       /* This symbol needs a copy reloc.  Set it up.  */
   1790  1.1  skrll 
   1791  1.1  skrll       BFD_ASSERT (h->dynindx != -1
   1792  1.1  skrll 		  && (h->root.type == bfd_link_hash_defined
   1793  1.1  skrll 		      || h->root.type == bfd_link_hash_defweak));
   1794  1.1  skrll 
   1795  1.1  skrll       s = bfd_get_section_by_name (h->root.u.def.section->owner,
   1796  1.1  skrll 				   ".rela.bss");
   1797  1.1  skrll       BFD_ASSERT (s != NULL);
   1798  1.1  skrll 
   1799  1.1  skrll       rela.r_offset = (h->root.u.def.value
   1800  1.1  skrll 		       + h->root.u.def.section->output_section->vma
   1801  1.1  skrll 		       + h->root.u.def.section->output_offset);
   1802  1.1  skrll       rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
   1803  1.1  skrll       rela.r_addend = 0;
   1804  1.1  skrll       loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
   1805  1.1  skrll       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
   1806  1.1  skrll     }
   1807  1.1  skrll 
   1808  1.1  skrll   /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
   1809  1.1  skrll   if (strcmp (h->root.root.string, "_DYNAMIC") == 0
   1810  1.1  skrll       || h == elf_hash_table (info)->hgot)
   1811  1.1  skrll     sym->st_shndx = SHN_ABS;
   1812  1.1  skrll 
   1813  1.1  skrll   return TRUE;
   1814  1.1  skrll }
   1815  1.1  skrll 
   1816  1.1  skrll /* Finish up the dynamic sections.  */
   1818  1.1  skrll 
   1819  1.1  skrll static bfd_boolean
   1820  1.1  skrll elf_cris_finish_dynamic_sections (output_bfd, info)
   1821  1.1  skrll      bfd *output_bfd;
   1822  1.1  skrll      struct bfd_link_info *info;
   1823  1.1  skrll {
   1824  1.1  skrll   bfd *dynobj;
   1825  1.1  skrll   asection *sgot;
   1826  1.1  skrll   asection *sdyn;
   1827  1.1  skrll 
   1828  1.1  skrll   dynobj = elf_hash_table (info)->dynobj;
   1829  1.1  skrll 
   1830  1.1  skrll   sgot = bfd_get_section_by_name (dynobj, ".got.plt");
   1831  1.1  skrll   BFD_ASSERT (sgot != NULL);
   1832  1.1  skrll   sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
   1833  1.1  skrll 
   1834  1.1  skrll   if (elf_hash_table (info)->dynamic_sections_created)
   1835  1.1  skrll     {
   1836  1.1  skrll       asection *splt;
   1837  1.1  skrll       Elf32_External_Dyn *dyncon, *dynconend;
   1838  1.1  skrll 
   1839  1.1  skrll       splt = bfd_get_section_by_name (dynobj, ".plt");
   1840  1.1  skrll       BFD_ASSERT (splt != NULL && sdyn != NULL);
   1841  1.1  skrll 
   1842  1.1  skrll       dyncon = (Elf32_External_Dyn *) sdyn->contents;
   1843  1.1  skrll       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
   1844  1.1  skrll       for (; dyncon < dynconend; dyncon++)
   1845  1.1  skrll 	{
   1846  1.1  skrll 	  Elf_Internal_Dyn dyn;
   1847  1.1  skrll 	  asection *s;
   1848  1.1  skrll 
   1849  1.1  skrll 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
   1850  1.1  skrll 
   1851  1.1  skrll 	  switch (dyn.d_tag)
   1852  1.1  skrll 	    {
   1853  1.1  skrll 	    default:
   1854  1.1  skrll 	      break;
   1855  1.1  skrll 
   1856  1.1  skrll 	    case DT_PLTGOT:
   1857  1.1  skrll 	      s = bfd_get_section_by_name (output_bfd, ".got");
   1858  1.1  skrll 	      BFD_ASSERT (s != NULL);
   1859  1.1  skrll 	      dyn.d_un.d_ptr = s->vma;
   1860  1.1  skrll 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   1861  1.1  skrll 	      break;
   1862  1.1  skrll 
   1863  1.1  skrll 	    case DT_JMPREL:
   1864  1.1  skrll 	      /* Yes, we *can* have a .plt and no .plt.rela, for instance
   1865  1.1  skrll 		 if all symbols are found in the .got (not .got.plt).  */
   1866  1.1  skrll 	      s = bfd_get_section_by_name (output_bfd, ".rela.plt");
   1867  1.1  skrll 	      dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
   1868  1.1  skrll 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   1869  1.1  skrll 	      break;
   1870  1.1  skrll 
   1871  1.1  skrll 	    case DT_PLTRELSZ:
   1872  1.1  skrll 	      s = bfd_get_section_by_name (output_bfd, ".rela.plt");
   1873  1.1  skrll 	      if (s == NULL)
   1874  1.1  skrll 		dyn.d_un.d_val = 0;
   1875  1.1  skrll 	      else
   1876  1.1  skrll 		dyn.d_un.d_val = s->size;
   1877  1.1  skrll 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   1878  1.1  skrll 	      break;
   1879  1.1  skrll 
   1880  1.1  skrll 	    case DT_RELASZ:
   1881  1.1  skrll 	      /* The procedure linkage table relocs (DT_JMPREL) should
   1882  1.1  skrll 		 not be included in the overall relocs (DT_RELA).
   1883  1.1  skrll 		 Therefore, we override the DT_RELASZ entry here to
   1884  1.1  skrll 		 make it not include the JMPREL relocs.  Since the
   1885  1.1  skrll 		 linker script arranges for .rela.plt to follow all
   1886  1.1  skrll 		 other relocation sections, we don't have to worry
   1887  1.1  skrll 		 about changing the DT_RELA entry.  */
   1888  1.1  skrll 	      s = bfd_get_section_by_name (output_bfd, ".rela.plt");
   1889  1.1  skrll 	      if (s != NULL)
   1890  1.1  skrll 		dyn.d_un.d_val -= s->size;
   1891  1.1  skrll 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
   1892  1.1  skrll 	      break;
   1893  1.1  skrll 	    }
   1894  1.1  skrll 	}
   1895  1.1  skrll 
   1896  1.1  skrll       /* Fill in the first entry in the procedure linkage table.  */
   1897  1.1  skrll       if (splt->size > 0)
   1898  1.1  skrll 	{
   1899  1.1  skrll 	  if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
   1900  1.1  skrll 	    {
   1901  1.1  skrll 	      if (info->shared)
   1902  1.1  skrll 		memcpy (splt->contents, elf_cris_pic_plt0_entry_v32,
   1903  1.1  skrll 			PLT_ENTRY_SIZE_V32);
   1904  1.1  skrll 	      else
   1905  1.1  skrll 		{
   1906  1.1  skrll 		  memcpy (splt->contents, elf_cris_plt0_entry_v32,
   1907  1.1  skrll 			  PLT_ENTRY_SIZE_V32);
   1908  1.1  skrll 		  bfd_put_32 (output_bfd,
   1909  1.1  skrll 			      sgot->output_section->vma
   1910  1.1  skrll 			      + sgot->output_offset + 4,
   1911  1.1  skrll 			      splt->contents + 4);
   1912  1.1  skrll 
   1913  1.1  skrll 		  elf_section_data (splt->output_section)->this_hdr.sh_entsize
   1914  1.1  skrll 		    = PLT_ENTRY_SIZE_V32;
   1915  1.1  skrll 		}
   1916  1.1  skrll 	    }
   1917  1.1  skrll 	  else
   1918  1.1  skrll 	    {
   1919  1.1  skrll 	      if (info->shared)
   1920  1.1  skrll 		memcpy (splt->contents, elf_cris_pic_plt0_entry,
   1921  1.1  skrll 			PLT_ENTRY_SIZE);
   1922  1.1  skrll 	      else
   1923  1.1  skrll 		{
   1924  1.1  skrll 		  memcpy (splt->contents, elf_cris_plt0_entry,
   1925  1.1  skrll 			  PLT_ENTRY_SIZE);
   1926  1.1  skrll 		  bfd_put_32 (output_bfd,
   1927  1.1  skrll 			      sgot->output_section->vma
   1928  1.1  skrll 			      + sgot->output_offset + 4,
   1929  1.1  skrll 			      splt->contents + 6);
   1930  1.1  skrll 		  bfd_put_32 (output_bfd,
   1931  1.1  skrll 			      sgot->output_section->vma
   1932  1.1  skrll 			      + sgot->output_offset + 8,
   1933  1.1  skrll 			      splt->contents + 14);
   1934  1.1  skrll 
   1935  1.1  skrll 		  elf_section_data (splt->output_section)->this_hdr.sh_entsize
   1936  1.1  skrll 		    = PLT_ENTRY_SIZE;
   1937  1.1  skrll 		}
   1938  1.1  skrll             }
   1939  1.1  skrll 	}
   1940  1.1  skrll     }
   1941  1.1  skrll 
   1942  1.1  skrll   /* Fill in the first three entries in the global offset table.  */
   1943  1.1  skrll   if (sgot->size > 0)
   1944  1.1  skrll     {
   1945  1.1  skrll       if (sdyn == NULL)
   1946  1.1  skrll 	bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
   1947  1.1  skrll       else
   1948  1.1  skrll 	bfd_put_32 (output_bfd,
   1949  1.1  skrll 		    sdyn->output_section->vma + sdyn->output_offset,
   1950  1.1  skrll 		    sgot->contents);
   1951  1.1  skrll       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
   1952  1.1  skrll       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
   1953  1.1  skrll     }
   1954  1.1  skrll 
   1955  1.1  skrll   elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
   1956  1.1  skrll 
   1957  1.1  skrll   return TRUE;
   1958  1.1  skrll }
   1959  1.1  skrll 
   1960  1.1  skrll /* Return the section that should be marked against GC for a given
   1962  1.1  skrll    relocation.  */
   1963  1.1  skrll 
   1964  1.1  skrll static asection *
   1965  1.1  skrll cris_elf_gc_mark_hook (asection *sec,
   1966  1.1  skrll 		       struct bfd_link_info *info,
   1967  1.1  skrll 		       Elf_Internal_Rela *rel,
   1968  1.1  skrll 		       struct elf_link_hash_entry *h,
   1969  1.1  skrll 		       Elf_Internal_Sym *sym)
   1970  1.1  skrll {
   1971  1.1  skrll   if (h != NULL)
   1972  1.1  skrll     switch (ELF32_R_TYPE (rel->r_info))
   1973  1.1  skrll       {
   1974  1.1  skrll       case R_CRIS_GNU_VTINHERIT:
   1975  1.1  skrll       case R_CRIS_GNU_VTENTRY:
   1976  1.1  skrll 	return NULL;
   1977  1.1  skrll       }
   1978  1.1  skrll 
   1979  1.1  skrll   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
   1980  1.1  skrll }
   1981  1.1  skrll 
   1982  1.1  skrll /* Update the got entry reference counts for the section being removed.  */
   1983  1.1  skrll 
   1984  1.1  skrll static bfd_boolean
   1985  1.1  skrll cris_elf_gc_sweep_hook (bfd *abfd,
   1986  1.1  skrll 			struct bfd_link_info *info,
   1987  1.1  skrll 			asection *sec,
   1988  1.1  skrll 			const Elf_Internal_Rela *relocs)
   1989  1.1  skrll {
   1990  1.1  skrll   Elf_Internal_Shdr *symtab_hdr;
   1991  1.1  skrll   struct elf_link_hash_entry **sym_hashes;
   1992  1.1  skrll   bfd_signed_vma *local_got_refcounts;
   1993  1.1  skrll   const Elf_Internal_Rela *rel, *relend;
   1994  1.1  skrll   bfd *dynobj;
   1995  1.1  skrll   asection *sgot;
   1996  1.1  skrll   asection *srelgot;
   1997  1.1  skrll 
   1998  1.1  skrll   if (info->relocatable)
   1999  1.1  skrll     return TRUE;
   2000  1.1  skrll 
   2001  1.1  skrll   dynobj = elf_hash_table (info)->dynobj;
   2002  1.1  skrll   if (dynobj == NULL)
   2003  1.1  skrll     return TRUE;
   2004  1.1  skrll 
   2005  1.1  skrll   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
   2006  1.1  skrll   sym_hashes = elf_sym_hashes (abfd);
   2007  1.1  skrll   local_got_refcounts = elf_local_got_refcounts (abfd);
   2008  1.1  skrll 
   2009  1.1  skrll   sgot = bfd_get_section_by_name (dynobj, ".got");
   2010  1.1  skrll   srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
   2011  1.1  skrll 
   2012  1.1  skrll   relend = relocs + sec->reloc_count;
   2013  1.1  skrll   for (rel = relocs; rel < relend; rel++)
   2014  1.1  skrll     {
   2015  1.1  skrll       unsigned long r_symndx;
   2016  1.1  skrll       struct elf_link_hash_entry *h = NULL;
   2017  1.1  skrll 
   2018  1.1  skrll       r_symndx = ELF32_R_SYM (rel->r_info);
   2019  1.1  skrll       if (r_symndx >= symtab_hdr->sh_info)
   2020  1.1  skrll 	{
   2021  1.1  skrll 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   2022  1.1  skrll 	  while (h->root.type == bfd_link_hash_indirect
   2023  1.1  skrll 		 || h->root.type == bfd_link_hash_warning)
   2024  1.1  skrll 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   2025  1.1  skrll 	}
   2026  1.1  skrll 
   2027  1.1  skrll       switch (ELF32_R_TYPE (rel->r_info))
   2028  1.1  skrll 	{
   2029  1.1  skrll 	case R_CRIS_16_GOT:
   2030  1.1  skrll 	case R_CRIS_32_GOT:
   2031  1.1  skrll 	  if (h != NULL)
   2032  1.1  skrll 	    {
   2033  1.1  skrll 	      if (h->got.refcount > 0)
   2034  1.1  skrll 		{
   2035  1.1  skrll 		  --h->got.refcount;
   2036  1.1  skrll 		  if (h->got.refcount == 0)
   2037  1.1  skrll 		    {
   2038  1.1  skrll 		      /* We don't need the .got entry any more.  */
   2039  1.1  skrll 		      sgot->size -= 4;
   2040  1.1  skrll 		      srelgot->size -= sizeof (Elf32_External_Rela);
   2041  1.1  skrll 		    }
   2042  1.1  skrll 		}
   2043  1.1  skrll 	      break;
   2044  1.1  skrll 	    }
   2045  1.1  skrll 
   2046  1.1  skrll 	local_got_reloc:
   2047  1.1  skrll 	  if (local_got_refcounts != NULL)
   2048  1.1  skrll 	    {
   2049  1.1  skrll 	      if (local_got_refcounts[r_symndx] > 0)
   2050  1.1  skrll 		{
   2051  1.1  skrll 		  --local_got_refcounts[r_symndx];
   2052  1.1  skrll 		  if (local_got_refcounts[r_symndx] == 0)
   2053  1.1  skrll 		    {
   2054  1.1  skrll 		      /* We don't need the .got entry any more.  */
   2055  1.1  skrll 		      sgot->size -= 4;
   2056  1.1  skrll 		      if (info->shared)
   2057  1.1  skrll 			srelgot->size -= sizeof (Elf32_External_Rela);
   2058  1.1  skrll 		    }
   2059  1.1  skrll 		}
   2060  1.1  skrll 	    }
   2061  1.1  skrll 	  break;
   2062  1.1  skrll 
   2063  1.1  skrll 	case R_CRIS_16_GOTPLT:
   2064  1.1  skrll 	case R_CRIS_32_GOTPLT:
   2065  1.1  skrll 	  /* For local symbols, treat these like GOT relocs.  */
   2066  1.1  skrll 	  if (h == NULL)
   2067  1.1  skrll 	    goto local_got_reloc;
   2068  1.1  skrll 	  /* Fall through.  */
   2069  1.1  skrll 
   2070  1.1  skrll 	case R_CRIS_32_PLT_GOTREL:
   2071  1.1  skrll 	  /* FIXME: We don't garbage-collect away the .got section.  */
   2072  1.1  skrll 	  if (local_got_refcounts != NULL)
   2073  1.1  skrll 	    local_got_refcounts[-1]--;
   2074  1.1  skrll 	  /* Fall through.  */
   2075  1.1  skrll 
   2076  1.1  skrll 	case R_CRIS_8_PCREL:
   2077  1.1  skrll 	case R_CRIS_16_PCREL:
   2078  1.1  skrll 	case R_CRIS_32_PCREL:
   2079  1.1  skrll 	case R_CRIS_32_PLT_PCREL:
   2080  1.1  skrll 	  if (h != NULL)
   2081  1.1  skrll 	    {
   2082  1.1  skrll 	      if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
   2083  1.1  skrll 		  && h->plt.refcount > 0)
   2084  1.1  skrll 		--h->plt.refcount;
   2085  1.1  skrll 	    }
   2086  1.1  skrll 	  break;
   2087  1.1  skrll 
   2088  1.1  skrll 	default:
   2089  1.1  skrll 	  break;
   2090  1.1  skrll 	}
   2091  1.1  skrll     }
   2092  1.1  skrll 
   2093  1.1  skrll   return TRUE;
   2094  1.1  skrll }
   2095  1.1  skrll 
   2096  1.1  skrll /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
   2097  1.1  skrll    entry but we found we will not create any.  Called when we find we will
   2098  1.1  skrll    not have any PLT for this symbol, by for example
   2099  1.1  skrll    elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
   2100  1.1  skrll    or elf_cris_size_dynamic_sections if no dynamic sections will be
   2101  1.1  skrll    created (we're only linking static objects).  */
   2102  1.1  skrll 
   2103  1.1  skrll static bfd_boolean
   2104  1.1  skrll elf_cris_adjust_gotplt_to_got (h, p)
   2105  1.1  skrll      struct elf_cris_link_hash_entry *h;
   2106  1.1  skrll      PTR p;
   2107  1.1  skrll {
   2108  1.1  skrll   struct bfd_link_info *info = (struct bfd_link_info *) p;
   2109  1.1  skrll 
   2110  1.1  skrll   if (h->root.root.type == bfd_link_hash_warning)
   2111  1.1  skrll     h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
   2112  1.1  skrll 
   2113  1.1  skrll   /* If nobody wanted a GOTPLT with this symbol, we're done.  */
   2114  1.1  skrll   if (h->gotplt_refcount <= 0)
   2115  1.1  skrll     return TRUE;
   2116  1.1  skrll 
   2117  1.1  skrll   if (h->root.got.refcount > 0)
   2118  1.1  skrll     {
   2119  1.1  skrll       /* There's a GOT entry for this symbol.  Just adjust the refcount.
   2120  1.1  skrll 	 Probably not necessary at this stage, but keeping it accurate
   2121  1.1  skrll 	 helps avoiding surprises later.  */
   2122  1.1  skrll       h->root.got.refcount += h->gotplt_refcount;
   2123  1.1  skrll       h->gotplt_refcount = 0;
   2124  1.1  skrll     }
   2125  1.1  skrll   else
   2126  1.1  skrll     {
   2127  1.1  skrll       /* No GOT entry for this symbol.  We need to create one.  */
   2128  1.1  skrll       bfd *dynobj = elf_hash_table (info)->dynobj;
   2129  1.1  skrll       asection *sgot;
   2130  1.1  skrll       asection *srelgot;
   2131  1.1  skrll 
   2132  1.1  skrll       BFD_ASSERT (dynobj != NULL);
   2133  1.1  skrll       sgot = bfd_get_section_by_name (dynobj, ".got");
   2134  1.1  skrll       srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
   2135  1.1  skrll 
   2136  1.1  skrll       /* Put an accurate refcount there.  */
   2137  1.1  skrll       h->root.got.refcount = h->gotplt_refcount;
   2138  1.1  skrll 
   2139  1.1  skrll       h->gotplt_refcount = 0;
   2140  1.1  skrll 
   2141  1.1  skrll       /* We always have a .got and a .rela.got section if there were
   2142  1.1  skrll 	 GOTPLT relocs in input.  */
   2143  1.1  skrll       BFD_ASSERT (sgot != NULL && srelgot != NULL);
   2144  1.1  skrll 
   2145  1.1  skrll       /* Allocate space in the .got section.  */
   2146  1.1  skrll       sgot->size += 4;
   2147  1.1  skrll 
   2148  1.1  skrll       /* Allocate relocation space.  */
   2149  1.1  skrll       srelgot->size += sizeof (Elf32_External_Rela);
   2150  1.1  skrll     }
   2151  1.1  skrll 
   2152  1.1  skrll   return TRUE;
   2153  1.1  skrll }
   2154  1.1  skrll 
   2155  1.1  skrll /* Try to fold PLT entries with GOT entries.  There are two cases when we
   2156  1.1  skrll    want to do this:
   2157  1.1  skrll 
   2158  1.1  skrll    - When all PLT references are GOTPLT references, and there are GOT
   2159  1.1  skrll      references, and this is not the executable.  We don't have to
   2160  1.1  skrll      generate a PLT at all.
   2161  1.1  skrll 
   2162  1.1  skrll    - When there are both (ordinary) PLT references and GOT references,
   2163  1.1  skrll      and this isn't the executable.
   2164  1.1  skrll      We want to make the PLT reference use the ordinary GOT entry rather
   2165  1.1  skrll      than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
   2166  1.1  skrll      since the GOT entry will have to be resolved at startup anyway.
   2167  1.1  skrll 
   2168  1.1  skrll    Though the latter case is handled when room for the PLT is allocated,
   2169  1.1  skrll    not here.
   2170  1.1  skrll 
   2171  1.1  skrll    By folding into the GOT, we may need a round-trip to a PLT in the
   2172  1.1  skrll    executable for calls, a loss in performance.  Still, losing a
   2173  1.1  skrll    reloc is a win in size and at least in start-up time.
   2174  1.1  skrll 
   2175  1.1  skrll    Note that this function is called before symbols are forced local by
   2176  1.1  skrll    version scripts.  The differing cases are handled by
   2177  1.1  skrll    elf_cris_hide_symbol.  */
   2178  1.1  skrll 
   2179  1.1  skrll static bfd_boolean
   2180  1.1  skrll elf_cris_try_fold_plt_to_got (h, p)
   2181  1.1  skrll      struct elf_cris_link_hash_entry *h;
   2182  1.1  skrll      PTR p;
   2183  1.1  skrll {
   2184  1.1  skrll   struct bfd_link_info *info = (struct bfd_link_info *) p;
   2185  1.1  skrll 
   2186  1.1  skrll   /* If there are no GOT references for this symbol, we can't fold any
   2187  1.1  skrll      other reference so there's nothing to do.  Likewise if there are no
   2188  1.1  skrll      PLT references; GOTPLT references included.  */
   2189  1.1  skrll   if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
   2190  1.1  skrll     return TRUE;
   2191  1.1  skrll 
   2192  1.1  skrll   /* GOTPLT relocs are supposed to be included into the PLT refcount.  */
   2193  1.1  skrll   BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
   2194  1.1  skrll 
   2195  1.1  skrll   if (h->gotplt_refcount == h->root.plt.refcount)
   2196  1.1  skrll     {
   2197  1.1  skrll       /* The only PLT references are GOTPLT references, and there are GOT
   2198  1.1  skrll 	 references.  Convert PLT to GOT references.  */
   2199  1.1  skrll       if (! elf_cris_adjust_gotplt_to_got (h, info))
   2200  1.1  skrll 	return FALSE;
   2201  1.1  skrll 
   2202  1.1  skrll       /* Clear the PLT references, so no PLT will be created.  */
   2203  1.1  skrll       h->root.plt.offset = (bfd_vma) -1;
   2204  1.1  skrll     }
   2205  1.1  skrll 
   2206  1.1  skrll   return TRUE;
   2207  1.1  skrll }
   2208  1.1  skrll 
   2209  1.1  skrll /* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
   2210  1.1  skrll    to use a GOT entry (and create one) rather than requiring a GOTPLT
   2211  1.1  skrll    entry.  */
   2212  1.1  skrll 
   2213  1.1  skrll static void
   2214  1.1  skrll elf_cris_hide_symbol (info, h, force_local)
   2215  1.1  skrll      struct bfd_link_info *info;
   2216  1.1  skrll      struct elf_link_hash_entry *h;
   2217  1.1  skrll      bfd_boolean force_local;
   2218  1.1  skrll {
   2219  1.1  skrll   elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
   2220  1.1  skrll 
   2221  1.1  skrll   _bfd_elf_link_hash_hide_symbol (info, h, force_local);
   2222  1.1  skrll }
   2223  1.1  skrll 
   2224  1.1  skrll /* Adjust a symbol defined by a dynamic object and referenced by a
   2225  1.1  skrll    regular object.  The current definition is in some section of the
   2226  1.1  skrll    dynamic object, but we're not including those sections.  We have to
   2227  1.1  skrll    change the definition to something the rest of the link can
   2228  1.1  skrll    understand.  */
   2229  1.1  skrll 
   2230  1.1  skrll static bfd_boolean
   2231  1.1  skrll elf_cris_adjust_dynamic_symbol (info, h)
   2232  1.1  skrll      struct bfd_link_info *info;
   2233  1.1  skrll      struct elf_link_hash_entry *h;
   2234  1.1  skrll {
   2235  1.1  skrll   bfd *dynobj;
   2236  1.1  skrll   asection *s;
   2237  1.1  skrll   bfd_size_type plt_entry_size;
   2238  1.1  skrll 
   2239  1.1  skrll   dynobj = elf_hash_table (info)->dynobj;
   2240  1.1  skrll 
   2241  1.1  skrll   /* Make sure we know what is going on here.  */
   2242  1.1  skrll   BFD_ASSERT (dynobj != NULL
   2243  1.1  skrll 	      && (h->needs_plt
   2244  1.1  skrll 		  || h->u.weakdef != NULL
   2245  1.1  skrll 		  || (h->def_dynamic
   2246  1.1  skrll 		      && h->ref_regular
   2247  1.1  skrll 		      && !h->def_regular)));
   2248  1.1  skrll 
   2249  1.1  skrll   plt_entry_size
   2250  1.1  skrll     = (bfd_get_mach (dynobj) == bfd_mach_cris_v32
   2251  1.1  skrll        ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
   2252  1.1  skrll 
   2253  1.1  skrll   /* If this is a function, put it in the procedure linkage table.  We
   2254  1.1  skrll      will fill in the contents of the procedure linkage table later,
   2255  1.1  skrll      when we know the address of the .got section.  */
   2256  1.1  skrll   if (h->type == STT_FUNC
   2257  1.1  skrll       || h->needs_plt)
   2258  1.1  skrll     {
   2259  1.1  skrll       /* If we link a program (not a DSO), we'll get rid of unnecessary
   2260  1.1  skrll 	 PLT entries; we point to the actual symbols -- even for pic
   2261  1.1  skrll 	 relocs, because a program built with -fpic should have the same
   2262  1.1  skrll 	 result as one built without -fpic, specifically considering weak
   2263  1.1  skrll 	 symbols.
   2264  1.1  skrll 	 FIXME: m68k and i386 differ here, for unclear reasons.  */
   2265  1.1  skrll       if (! info->shared
   2266  1.1  skrll 	  && !h->def_dynamic)
   2267  1.1  skrll 	{
   2268  1.1  skrll 	  /* This case can occur if we saw a PLT reloc in an input file,
   2269  1.1  skrll 	     but the symbol was not defined by a dynamic object.  In such
   2270  1.1  skrll 	     a case, we don't actually need to build a procedure linkage
   2271  1.1  skrll 	     table, and we can just do an absolute or PC reloc instead, or
   2272  1.1  skrll 	     change a .got.plt index to a .got index for GOTPLT relocs.  */
   2273  1.1  skrll 	  BFD_ASSERT (h->needs_plt);
   2274  1.1  skrll 	  h->needs_plt = 0;
   2275  1.1  skrll 	  h->plt.offset = (bfd_vma) -1;
   2276  1.1  skrll 	  return
   2277  1.1  skrll 	    elf_cris_adjust_gotplt_to_got ((struct
   2278  1.1  skrll 					    elf_cris_link_hash_entry *) h,
   2279  1.1  skrll 					   info);
   2280  1.1  skrll 	}
   2281  1.1  skrll 
   2282  1.1  skrll       /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
   2283  1.1  skrll 	 where a pointer-equivalent symbol was unimportant (i.e. more
   2284  1.1  skrll 	 like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
   2285  1.1  skrll 	 of the PLT.  We can't for the executable, because the GOT
   2286  1.1  skrll 	 entries will point to the PLT there (and be constant).  */
   2287  1.1  skrll       if (info->shared
   2288  1.1  skrll 	  && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*)
   2289  1.1  skrll 					    h, info))
   2290  1.1  skrll 	return FALSE;
   2291  1.1  skrll 
   2292  1.1  skrll       /* GC or folding may have rendered this entry unused.  */
   2293  1.1  skrll       if (h->plt.refcount <= 0)
   2294  1.1  skrll 	{
   2295  1.1  skrll 	  h->needs_plt = 0;
   2296  1.1  skrll 	  h->plt.offset = (bfd_vma) -1;
   2297  1.1  skrll 	  return TRUE;
   2298  1.1  skrll 	}
   2299  1.1  skrll 
   2300  1.1  skrll       /* Make sure this symbol is output as a dynamic symbol.  */
   2301  1.1  skrll       if (h->dynindx == -1)
   2302  1.1  skrll 	{
   2303  1.1  skrll 	  if (! bfd_elf_link_record_dynamic_symbol (info, h))
   2304  1.1  skrll 	    return FALSE;
   2305  1.1  skrll 	}
   2306  1.1  skrll 
   2307  1.1  skrll       s = bfd_get_section_by_name (dynobj, ".plt");
   2308  1.1  skrll       BFD_ASSERT (s != NULL);
   2309  1.1  skrll 
   2310  1.1  skrll       /* If this is the first .plt entry, make room for the special
   2311  1.1  skrll 	 first entry.  */
   2312  1.1  skrll       if (s->size == 0)
   2313  1.1  skrll 	s->size += plt_entry_size;
   2314  1.1  skrll 
   2315  1.1  skrll       /* If this symbol is not defined in a regular file, and we are
   2316  1.1  skrll 	 not generating a shared library, then set the symbol to this
   2317  1.1  skrll 	 location in the .plt.  */
   2318  1.1  skrll       if (!info->shared
   2319  1.1  skrll 	  && !h->def_regular)
   2320  1.1  skrll 	{
   2321  1.1  skrll 	  h->root.u.def.section = s;
   2322  1.1  skrll 	  h->root.u.def.value = s->size;
   2323  1.1  skrll 	}
   2324  1.1  skrll 
   2325  1.1  skrll       /* If there's already a GOT entry, use that, not a .got.plt.  A
   2326  1.1  skrll 	 GOT field still has a reference count when we get here; it's
   2327  1.1  skrll 	 not yet changed to an offset.  We can't do this for an
   2328  1.1  skrll 	 executable, because then the reloc associated with the PLT
   2329  1.1  skrll 	 would get a non-PLT reloc pointing to the PLT.  FIXME: Move
   2330  1.1  skrll 	 this to elf_cris_try_fold_plt_to_got.  */
   2331  1.1  skrll       if (info->shared && h->got.refcount > 0)
   2332  1.1  skrll 	{
   2333  1.1  skrll 	  h->got.refcount += h->plt.refcount;
   2334  1.1  skrll 
   2335  1.1  skrll 	  /* Mark the PLT offset to use the GOT entry by setting the low
   2336  1.1  skrll 	     bit in the plt offset; it is always a multiple of
   2337  1.1  skrll 	     plt_entry_size (which is at least a multiple of 2).  */
   2338  1.1  skrll 	  BFD_ASSERT ((s->size % plt_entry_size) == 0);
   2339  1.1  skrll 
   2340  1.1  skrll 	  /* Change the PLT refcount to an offset.  */
   2341  1.1  skrll 	  h->plt.offset = s->size;
   2342  1.1  skrll 
   2343  1.1  skrll 	  /* By not setting gotplt_offset (i.e. it remains at 0), we signal
   2344  1.1  skrll 	     that the got entry should be used instead.  */
   2345  1.1  skrll 	  BFD_ASSERT (((struct elf_cris_link_hash_entry *)
   2346  1.1  skrll 		       h)->gotplt_offset == 0);
   2347  1.1  skrll 
   2348  1.1  skrll 	  /* Make room for this entry.  */
   2349  1.1  skrll 	  s->size += plt_entry_size;
   2350  1.1  skrll 
   2351  1.1  skrll 	  return TRUE;
   2352  1.1  skrll 	}
   2353  1.1  skrll 
   2354  1.1  skrll       /* No GOT reference for this symbol; prepare for an ordinary PLT.  */
   2355  1.1  skrll       h->plt.offset = s->size;
   2356  1.1  skrll 
   2357  1.1  skrll       /* Make room for this entry.  */
   2358  1.1  skrll       s->size += plt_entry_size;
   2359  1.1  skrll 
   2360  1.1  skrll       /* We also need to make an entry in the .got.plt section, which
   2361  1.1  skrll 	 will be placed in the .got section by the linker script.  */
   2362  1.1  skrll       ((struct elf_cris_link_hash_entry *) h)->gotplt_offset
   2363  1.1  skrll 	= elf_cris_hash_table (info)->next_gotplt_entry;
   2364  1.1  skrll       elf_cris_hash_table (info)->next_gotplt_entry += 4;
   2365  1.1  skrll 
   2366  1.1  skrll       s = bfd_get_section_by_name (dynobj, ".got.plt");
   2367  1.1  skrll       BFD_ASSERT (s != NULL);
   2368  1.1  skrll       s->size += 4;
   2369  1.1  skrll 
   2370  1.1  skrll       /* We also need to make an entry in the .rela.plt section.  */
   2371  1.1  skrll 
   2372  1.1  skrll       s = bfd_get_section_by_name (dynobj, ".rela.plt");
   2373  1.1  skrll       BFD_ASSERT (s != NULL);
   2374  1.1  skrll       s->size += sizeof (Elf32_External_Rela);
   2375  1.1  skrll 
   2376  1.1  skrll       return TRUE;
   2377  1.1  skrll     }
   2378  1.1  skrll 
   2379  1.1  skrll   /* Reinitialize the plt offset now that it is not used as a reference
   2380  1.1  skrll      count any more.  */
   2381  1.1  skrll   h->plt.offset = (bfd_vma) -1;
   2382  1.1  skrll 
   2383  1.1  skrll   /* If this is a weak symbol, and there is a real definition, the
   2384  1.1  skrll      processor independent code will have arranged for us to see the
   2385  1.1  skrll      real definition first, and we can just use the same value.  */
   2386  1.1  skrll   if (h->u.weakdef != NULL)
   2387  1.1  skrll     {
   2388  1.1  skrll       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
   2389  1.1  skrll 		  || h->u.weakdef->root.type == bfd_link_hash_defweak);
   2390  1.1  skrll       h->root.u.def.section = h->u.weakdef->root.u.def.section;
   2391  1.1  skrll       h->root.u.def.value = h->u.weakdef->root.u.def.value;
   2392  1.1  skrll       return TRUE;
   2393  1.1  skrll     }
   2394  1.1  skrll 
   2395  1.1  skrll   /* This is a reference to a symbol defined by a dynamic object which
   2396  1.1  skrll      is not a function.  */
   2397  1.1  skrll 
   2398  1.1  skrll   /* If we are creating a shared library, we must presume that the
   2399  1.1  skrll      only references to the symbol are via the global offset table.
   2400  1.1  skrll      For such cases we need not do anything here; the relocations will
   2401  1.1  skrll      be handled correctly by relocate_section.  */
   2402  1.1  skrll   if (info->shared)
   2403  1.1  skrll     return TRUE;
   2404  1.1  skrll 
   2405  1.1  skrll   /* If there are no references to this symbol that do not use the
   2406  1.1  skrll      GOT, we don't need to generate a copy reloc.  */
   2407  1.1  skrll   if (!h->non_got_ref)
   2408  1.1  skrll     return TRUE;
   2409  1.1  skrll 
   2410  1.1  skrll   if (h->size == 0)
   2411  1.1  skrll     {
   2412  1.1  skrll       (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
   2413  1.1  skrll 			     h->root.root.string);
   2414  1.1  skrll       return TRUE;
   2415  1.1  skrll     }
   2416  1.1  skrll 
   2417  1.1  skrll   /* We must allocate the symbol in our .dynbss section, which will
   2418  1.1  skrll      become part of the .bss section of the executable.  There will be
   2419  1.1  skrll      an entry for this symbol in the .dynsym section.  The dynamic
   2420  1.1  skrll      object will contain position independent code, so all references
   2421  1.1  skrll      from the dynamic object to this symbol will go through the global
   2422  1.1  skrll      offset table.  The dynamic linker will use the .dynsym entry to
   2423  1.1  skrll      determine the address it must put in the global offset table, so
   2424  1.1  skrll      both the dynamic object and the regular object will refer to the
   2425  1.1  skrll      same memory location for the variable.  */
   2426  1.1  skrll 
   2427  1.1  skrll   s = bfd_get_section_by_name (dynobj, ".dynbss");
   2428  1.1  skrll   BFD_ASSERT (s != NULL);
   2429  1.1  skrll 
   2430  1.1  skrll   /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
   2431  1.1  skrll      copy the initial value out of the dynamic object and into the
   2432  1.1  skrll      runtime process image.  We need to remember the offset into the
   2433  1.1  skrll      .rela.bss section we are going to use.  */
   2434  1.1  skrll   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
   2435  1.1  skrll     {
   2436  1.1  skrll       asection *srel;
   2437  1.1  skrll 
   2438  1.1  skrll       srel = bfd_get_section_by_name (dynobj, ".rela.bss");
   2439  1.1  skrll       BFD_ASSERT (srel != NULL);
   2440  1.1  skrll       srel->size += sizeof (Elf32_External_Rela);
   2441  1.1  skrll       h->needs_copy = 1;
   2442  1.1  skrll     }
   2443  1.1  skrll 
   2444  1.1  skrll   return _bfd_elf_adjust_dynamic_copy (h, s);
   2445  1.1  skrll }
   2446  1.1  skrll 
   2447  1.1  skrll /* Look through the relocs for a section during the first phase.  */
   2448  1.1  skrll 
   2449  1.1  skrll static bfd_boolean
   2450  1.1  skrll cris_elf_check_relocs (abfd, info, sec, relocs)
   2451  1.1  skrll      bfd *abfd;
   2452  1.1  skrll      struct bfd_link_info *info;
   2453  1.1  skrll      asection *sec;
   2454  1.1  skrll      const Elf_Internal_Rela *relocs;
   2455  1.1  skrll {
   2456  1.1  skrll   bfd *dynobj;
   2457  1.1  skrll   Elf_Internal_Shdr *symtab_hdr;
   2458  1.1  skrll   struct elf_link_hash_entry **sym_hashes;
   2459  1.1  skrll   bfd_signed_vma *local_got_refcounts;
   2460  1.1  skrll   const Elf_Internal_Rela *rel;
   2461  1.1  skrll   const Elf_Internal_Rela *rel_end;
   2462  1.1  skrll   asection *sgot;
   2463  1.1  skrll   asection *srelgot;
   2464  1.1  skrll   asection *sreloc;
   2465  1.1  skrll 
   2466  1.1  skrll   if (info->relocatable)
   2467  1.1  skrll     return TRUE;
   2468  1.1  skrll 
   2469  1.1  skrll   dynobj = elf_hash_table (info)->dynobj;
   2470  1.1  skrll   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
   2471  1.1  skrll   sym_hashes = elf_sym_hashes (abfd);
   2472  1.1  skrll   local_got_refcounts = elf_local_got_refcounts (abfd);
   2473  1.1  skrll 
   2474  1.1  skrll   sgot = NULL;
   2475  1.1  skrll   srelgot = NULL;
   2476  1.1  skrll   sreloc = NULL;
   2477  1.1  skrll 
   2478  1.1  skrll   rel_end = relocs + sec->reloc_count;
   2479  1.1  skrll   for (rel = relocs; rel < rel_end; rel++)
   2480  1.1  skrll     {
   2481  1.1  skrll       struct elf_link_hash_entry *h;
   2482  1.1  skrll       unsigned long r_symndx;
   2483  1.1  skrll       enum elf_cris_reloc_type r_type;
   2484  1.1  skrll 
   2485  1.1  skrll       r_symndx = ELF32_R_SYM (rel->r_info);
   2486  1.1  skrll       if (r_symndx < symtab_hdr->sh_info)
   2487  1.1  skrll         h = NULL;
   2488  1.1  skrll       else
   2489  1.1  skrll 	{
   2490  1.1  skrll 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
   2491  1.1  skrll 	  while (h->root.type == bfd_link_hash_indirect
   2492  1.1  skrll 		 || h->root.type == bfd_link_hash_warning)
   2493  1.1  skrll 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
   2494  1.1  skrll 	}
   2495  1.1  skrll 
   2496  1.1  skrll       r_type = ELF32_R_TYPE (rel->r_info);
   2497  1.1  skrll 
   2498  1.1  skrll       /* Some relocs require linker-created sections; we need to hang them
   2499  1.1  skrll 	 on the first input bfd we found that contained dynamic relocs.  */
   2500  1.1  skrll       switch (r_type)
   2501  1.1  skrll 	{
   2502  1.1  skrll 	case R_CRIS_16_GOT:
   2503  1.1  skrll 	case R_CRIS_32_GOT:
   2504  1.1  skrll 	case R_CRIS_32_GOTREL:
   2505  1.1  skrll 	case R_CRIS_32_PLT_GOTREL:
   2506  1.1  skrll 	case R_CRIS_32_PLT_PCREL:
   2507  1.1  skrll 	case R_CRIS_16_GOTPLT:
   2508  1.1  skrll 	case R_CRIS_32_GOTPLT:
   2509  1.1  skrll 	  if (dynobj == NULL)
   2510  1.1  skrll 	    {
   2511  1.1  skrll 	      elf_hash_table (info)->dynobj = dynobj = abfd;
   2512  1.1  skrll 
   2513  1.1  skrll 	      /* We could handle this if we can get a handle on the
   2514  1.1  skrll 		 output bfd in elf_cris_adjust_dynamic_symbol.  Failing
   2515  1.1  skrll 		 that, we must insist on dynobj being a specific mach.  */
   2516  1.1  skrll 	      if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32)
   2517  1.1  skrll 		{
   2518  1.1  skrll 		  (*_bfd_error_handler)
   2519  1.1  skrll 		    (_("%B, section %A:\n  v10/v32 compatible object %s"
   2520  1.1  skrll 		       " must not contain a PIC relocation"),
   2521  1.1  skrll 		     abfd, sec);
   2522  1.1  skrll 		  return FALSE;
   2523  1.1  skrll 		}
   2524  1.1  skrll 
   2525  1.1  skrll 	      /* Create the .got section, so we can assume it's always
   2526  1.1  skrll 		 present whenever there's a dynobj.  */
   2527  1.1  skrll 	      if (!_bfd_elf_create_got_section (dynobj, info))
   2528  1.1  skrll 		return FALSE;
   2529  1.1  skrll 	    }
   2530  1.1  skrll 	  break;
   2531  1.1  skrll 
   2532  1.1  skrll 	default:
   2533  1.1  skrll 	  break;
   2534  1.1  skrll 	}
   2535  1.1  skrll 
   2536  1.1  skrll       /* Some relocs require a global offset table (but perhaps not a
   2537  1.1  skrll 	 specific GOT entry).  */
   2538  1.1  skrll       switch (r_type)
   2539  1.1  skrll 	{
   2540  1.1  skrll 	  /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
   2541  1.1  skrll 	     entry only for local symbols.  Unfortunately, we don't know
   2542  1.1  skrll 	     until later on if there's a version script that forces the
   2543  1.1  skrll 	     symbol local.  We must have the .rela.got section in place
   2544  1.1  skrll 	     before we know if the symbol looks global now, so we need
   2545  1.1  skrll 	     to treat the reloc just like for R_CRIS_16_GOT and
   2546  1.1  skrll 	     R_CRIS_32_GOT.  */
   2547  1.1  skrll 	case R_CRIS_16_GOTPLT:
   2548  1.1  skrll 	case R_CRIS_32_GOTPLT:
   2549  1.1  skrll 	case R_CRIS_16_GOT:
   2550  1.1  skrll 	case R_CRIS_32_GOT:
   2551  1.1  skrll 	  if (srelgot == NULL
   2552  1.1  skrll 	      && (h != NULL || info->shared))
   2553  1.1  skrll 	    {
   2554  1.1  skrll 	      srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
   2555  1.1  skrll 	      if (srelgot == NULL)
   2556  1.1  skrll 		{
   2557  1.1  skrll 		  srelgot = bfd_make_section_with_flags (dynobj,
   2558  1.1  skrll 							 ".rela.got",
   2559  1.1  skrll 							 (SEC_ALLOC
   2560  1.1  skrll 							  | SEC_LOAD
   2561  1.1  skrll 							  | SEC_HAS_CONTENTS
   2562  1.1  skrll 							  | SEC_IN_MEMORY
   2563  1.1  skrll 							  | SEC_LINKER_CREATED
   2564  1.1  skrll 							  | SEC_READONLY));
   2565  1.1  skrll 		  if (srelgot == NULL
   2566  1.1  skrll 		      || !bfd_set_section_alignment (dynobj, srelgot, 2))
   2567  1.1  skrll 		    return FALSE;
   2568  1.1  skrll 		}
   2569  1.1  skrll 	    }
   2570  1.1  skrll 	  /* Fall through.  */
   2571  1.1  skrll 
   2572  1.1  skrll 	case R_CRIS_32_GOTREL:
   2573  1.1  skrll 	case R_CRIS_32_PLT_GOTREL:
   2574  1.1  skrll 	  if (sgot == NULL)
   2575  1.1  skrll 	    sgot = bfd_get_section_by_name (dynobj, ".got");
   2576  1.1  skrll 
   2577  1.1  skrll 	  if (local_got_refcounts == NULL)
   2578  1.1  skrll 	    {
   2579  1.1  skrll 	      bfd_size_type amt;
   2580  1.1  skrll 
   2581  1.1  skrll 	      /* We use index local_got_refcounts[-1] to count all
   2582  1.1  skrll 		 GOT-relative relocations that do not have explicit
   2583  1.1  skrll 		 GOT entries.  */
   2584  1.1  skrll 	      amt = symtab_hdr->sh_info + 1;
   2585  1.1  skrll 	      amt *= sizeof (bfd_signed_vma);
   2586  1.1  skrll 	      local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
   2587  1.1  skrll 	      if (local_got_refcounts == NULL)
   2588  1.1  skrll 		return FALSE;
   2589  1.1  skrll 
   2590  1.1  skrll 	      local_got_refcounts++;
   2591  1.1  skrll 	      elf_local_got_refcounts (abfd) = local_got_refcounts;
   2592  1.1  skrll 	    }
   2593  1.1  skrll 	  break;
   2594  1.1  skrll 
   2595  1.1  skrll 	default:
   2596  1.1  skrll 	  break;
   2597  1.1  skrll 	}
   2598  1.1  skrll 
   2599  1.1  skrll       switch (r_type)
   2600  1.1  skrll         {
   2601  1.1  skrll 	case R_CRIS_16_GOTPLT:
   2602  1.1  skrll 	case R_CRIS_32_GOTPLT:
   2603  1.1  skrll 	  /* Mark that we need a GOT entry if the PLT entry (and its GOT
   2604  1.1  skrll 	     entry) is eliminated.  We can only do this for a non-local
   2605  1.1  skrll 	     symbol.  */
   2606  1.1  skrll 	  if (h != NULL)
   2607  1.1  skrll 	    {
   2608  1.1  skrll 	      ((struct elf_cris_link_hash_entry *) h)->gotplt_refcount++;
   2609  1.1  skrll 	      goto handle_gotplt_reloc;
   2610  1.1  skrll 	    }
   2611  1.1  skrll 	  /* If h is NULL then this is a local symbol, and we must make a
   2612  1.1  skrll 	     GOT entry for it, so handle it like a GOT reloc.  */
   2613  1.1  skrll 	  /* Fall through.  */
   2614  1.1  skrll 
   2615  1.1  skrll 	case R_CRIS_16_GOT:
   2616  1.1  skrll 	case R_CRIS_32_GOT:
   2617  1.1  skrll 	  /* This symbol requires a global offset table entry.  */
   2618  1.1  skrll 	  if (h != NULL)
   2619  1.1  skrll 	    {
   2620  1.1  skrll 	      if (h->got.refcount == 0)
   2621  1.1  skrll 		{
   2622  1.1  skrll 		  /* Make sure this symbol is output as a dynamic symbol.  */
   2623  1.1  skrll 		  if (h->dynindx == -1)
   2624  1.1  skrll 		    {
   2625  1.1  skrll 		      if (!bfd_elf_link_record_dynamic_symbol (info, h))
   2626  1.1  skrll 			return FALSE;
   2627  1.1  skrll 		    }
   2628  1.1  skrll 
   2629  1.1  skrll 		  /* Allocate space in the .got section.  */
   2630  1.1  skrll 		  sgot->size += 4;
   2631  1.1  skrll 		  /* Allocate relocation space.  */
   2632  1.1  skrll 		  srelgot->size += sizeof (Elf32_External_Rela);
   2633  1.1  skrll 		}
   2634  1.1  skrll 	      h->got.refcount++;
   2635  1.1  skrll 	    }
   2636  1.1  skrll 	  else
   2637  1.1  skrll 	    {
   2638  1.1  skrll 	      /* This is a global offset table entry for a local symbol.  */
   2639  1.1  skrll 	      if (local_got_refcounts[r_symndx] == 0)
   2640  1.1  skrll 		{
   2641  1.1  skrll 		  sgot->size += 4;
   2642  1.1  skrll 		  if (info->shared)
   2643  1.1  skrll 		    {
   2644  1.1  skrll 		      /* If we are generating a shared object, we need to
   2645  1.1  skrll 			 output a R_CRIS_RELATIVE reloc so that the dynamic
   2646  1.1  skrll 			 linker can adjust this GOT entry.  */
   2647  1.1  skrll 		      srelgot->size += sizeof (Elf32_External_Rela);
   2648  1.1  skrll 		    }
   2649  1.1  skrll 		}
   2650  1.1  skrll 	      local_got_refcounts[r_symndx]++;
   2651  1.1  skrll 	    }
   2652  1.1  skrll 	  break;
   2653  1.1  skrll 
   2654  1.1  skrll 	case R_CRIS_32_GOTREL:
   2655  1.1  skrll 	  /* This reference requires a global offset table.
   2656  1.1  skrll 	     FIXME: The actual refcount isn't used currently; the .got
   2657  1.1  skrll 	     section can't be removed if there were any references in the
   2658  1.1  skrll 	     input.  */
   2659  1.1  skrll 	  local_got_refcounts[-1]++;
   2660  1.1  skrll 	  break;
   2661  1.1  skrll 
   2662  1.1  skrll 	handle_gotplt_reloc:
   2663  1.1  skrll 
   2664  1.1  skrll 	case R_CRIS_32_PLT_GOTREL:
   2665  1.1  skrll 	  /* This reference requires a global offset table.  */
   2666  1.1  skrll 	  local_got_refcounts[-1]++;
   2667  1.1  skrll 	  /* Fall through.  */
   2668  1.1  skrll 
   2669  1.1  skrll 	case R_CRIS_32_PLT_PCREL:
   2670  1.1  skrll 	  /* This symbol requires a procedure linkage table entry.  We
   2671  1.1  skrll 	     actually build the entry in adjust_dynamic_symbol,
   2672  1.1  skrll              because this might be a case of linking PIC code which is
   2673  1.1  skrll              never referenced by a dynamic object, in which case we
   2674  1.1  skrll              don't need to generate a procedure linkage table entry
   2675  1.1  skrll              after all.  */
   2676  1.1  skrll 
   2677  1.1  skrll 	  /* Beware: if we'd check for visibility of the symbol here
   2678  1.1  skrll 	     (and not marking the need for a PLT when non-visible), we'd
   2679  1.1  skrll 	     get into trouble with keeping handling consistent with
   2680  1.1  skrll 	     regards to relocs found before definition and GOTPLT
   2681  1.1  skrll 	     handling.  Eliminable PLT entries will be dealt with later
   2682  1.1  skrll 	     anyway.  */
   2683  1.1  skrll 	  if (h == NULL)
   2684  1.1  skrll 	    continue;
   2685  1.1  skrll 
   2686  1.1  skrll 	  h->needs_plt = 1;
   2687  1.1  skrll 	  h->plt.refcount++;
   2688  1.1  skrll 	  break;
   2689  1.1  skrll 
   2690  1.1  skrll 	case R_CRIS_8:
   2691  1.1  skrll 	case R_CRIS_16:
   2692  1.1  skrll 	case R_CRIS_32:
   2693  1.1  skrll 	  /* Let's help debug shared library creation.  Any of these
   2694  1.1  skrll 	     relocs can be used in shared libs, but pages containing them
   2695  1.1  skrll 	     cannot be shared.  Don't warn for sections we don't care
   2696  1.1  skrll 	     about, such as debug sections or non-constant sections.  We
   2697  1.1  skrll 	     can't help tables of (global) function pointers, for example,
   2698  1.1  skrll 	     though they must be emitted in a data section to avoid having
   2699  1.1  skrll 	     impure text sections.  */
   2700  1.1  skrll 	  if (info->shared
   2701  1.1  skrll 	      && (sec->flags & SEC_ALLOC) != 0
   2702  1.1  skrll 	      && (sec->flags & SEC_READONLY) != 0)
   2703  1.1  skrll 	    {
   2704  1.1  skrll 	      /* FIXME: How do we make this optionally a warning only?  */
   2705  1.1  skrll 	      (*_bfd_error_handler)
   2706  1.1  skrll 		(_("%B, section %A:\n  relocation %s should not"
   2707  1.1  skrll 		   " be used in a shared object; recompile with -fPIC"),
   2708  1.1  skrll 		 abfd,
   2709  1.1  skrll 		 sec,
   2710  1.1  skrll 		 cris_elf_howto_table[r_type].name);
   2711  1.1  skrll 	    }
   2712  1.1  skrll 	  /* Fall through.  */
   2713  1.1  skrll 
   2714  1.1  skrll 	case R_CRIS_8_PCREL:
   2715  1.1  skrll 	case R_CRIS_16_PCREL:
   2716  1.1  skrll 	case R_CRIS_32_PCREL:
   2717  1.1  skrll 	  if (h != NULL)
   2718  1.1  skrll 	    {
   2719  1.1  skrll 	      h->non_got_ref = 1;
   2720  1.1  skrll 
   2721  1.1  skrll 	      /* Make sure a plt entry is created for this symbol if it
   2722  1.1  skrll 		 turns out to be a function defined by a dynamic object.  */
   2723  1.1  skrll 	      if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
   2724  1.1  skrll 		h->plt.refcount++;
   2725  1.1  skrll 	    }
   2726  1.1  skrll 
   2727  1.1  skrll 	  /* If we are creating a shared library and this is not a local
   2728  1.1  skrll 	     symbol, we need to copy the reloc into the shared library.
   2729  1.1  skrll 	     However when linking with -Bsymbolic and this is a global
   2730  1.1  skrll 	     symbol which is defined in an object we are including in the
   2731  1.1  skrll 	     link (i.e., DEF_REGULAR is set), then we can resolve the
   2732  1.1  skrll 	     reloc directly.  At this point we have not seen all the input
   2733  1.1  skrll 	     files, so it is possible that DEF_REGULAR is not set now but
   2734  1.1  skrll 	     will be set later (it is never cleared).  In case of a weak
   2735  1.1  skrll 	     definition, DEF_REGULAR may be cleared later by a strong
   2736  1.1  skrll 	     definition in a shared library.  We account for that
   2737  1.1  skrll 	     possibility below by storing information in the relocs_copied
   2738  1.1  skrll 	     field of the hash table entry.  A similar situation occurs
   2739  1.1  skrll 	     when creating shared libraries and symbol visibility changes
   2740  1.1  skrll 	     render the symbol local.  */
   2741  1.1  skrll 
   2742  1.1  skrll 	  /* No need to do anything if we're not creating a shared object.  */
   2743  1.1  skrll 	  if (! info->shared)
   2744  1.1  skrll 	    break;
   2745  1.1  skrll 
   2746  1.1  skrll 	  /* We don't need to handle relocs into sections not going into
   2747  1.1  skrll 	     the "real" output.  */
   2748  1.1  skrll 	  if ((sec->flags & SEC_ALLOC) == 0)
   2749  1.1  skrll 	    break;
   2750  1.1  skrll 
   2751  1.1  skrll 	  /* We can only eliminate PC-relative relocs.  */
   2752  1.1  skrll 	  if (r_type == R_CRIS_8_PCREL
   2753  1.1  skrll 	      || r_type == R_CRIS_16_PCREL
   2754  1.1  skrll 	      || r_type == R_CRIS_32_PCREL)
   2755  1.1  skrll 	    {
   2756  1.1  skrll 	      /* If the symbol is local, then we can eliminate the reloc.  */
   2757  1.1  skrll 	      if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
   2758  1.1  skrll 		break;
   2759  1.1  skrll 
   2760  1.1  skrll 	      /* If this is with -Bsymbolic and the symbol isn't weak, and
   2761  1.1  skrll 		 is defined by an ordinary object (the ones we include in
   2762  1.1  skrll 		 this shared library) then we can also eliminate the
   2763  1.1  skrll 		 reloc.  See comment above for more eliminable cases which
   2764  1.1  skrll 		 we can't identify at this time.  */
   2765  1.1  skrll 	      if (info->symbolic
   2766  1.1  skrll 		  && h->root.type != bfd_link_hash_defweak
   2767  1.1  skrll 		  && h->def_regular)
   2768  1.1  skrll 		break;
   2769  1.1  skrll 
   2770  1.1  skrll 	      if ((sec->flags & SEC_READONLY) != 0)
   2771  1.1  skrll 		{
   2772  1.1  skrll 		  /* FIXME: How do we make this optionally a warning only?  */
   2773  1.1  skrll 		  (*_bfd_error_handler)
   2774  1.1  skrll 		    (_("%B, section %A:\n  relocation %s should not be used"
   2775  1.1  skrll 		       " in a shared object; recompile with -fPIC"),
   2776  1.1  skrll 		     abfd,
   2777  1.1  skrll 		     sec,
   2778  1.1  skrll 		     cris_elf_howto_table[r_type].name);
   2779  1.1  skrll 		}
   2780  1.1  skrll 	    }
   2781  1.1  skrll 
   2782  1.1  skrll 	  /* We create a reloc section in dynobj and make room for this
   2783  1.1  skrll 	     reloc.  */
   2784  1.1  skrll 	  if (sreloc == NULL)
   2785  1.1  skrll 	    {
   2786  1.1  skrll 	      const char *name;
   2787  1.1  skrll 
   2788  1.1  skrll 	      name = (bfd_elf_string_from_elf_section
   2789  1.1  skrll 		      (abfd,
   2790  1.1  skrll 		       elf_elfheader (abfd)->e_shstrndx,
   2791  1.1  skrll 		       elf_section_data (sec)->rel_hdr.sh_name));
   2792  1.1  skrll 	      if (name == NULL)
   2793  1.1  skrll 		return FALSE;
   2794  1.1  skrll 
   2795  1.1  skrll 	      BFD_ASSERT (CONST_STRNEQ (name, ".rela")
   2796  1.1  skrll 			  && strcmp (bfd_get_section_name (abfd, sec),
   2797  1.1  skrll 				     name + 5) == 0);
   2798  1.1  skrll 
   2799  1.1  skrll 	      sreloc = bfd_get_section_by_name (dynobj, name);
   2800  1.1  skrll 	      if (sreloc == NULL)
   2801  1.1  skrll 		{
   2802  1.1  skrll 		  sreloc = bfd_make_section_with_flags (dynobj, name,
   2803  1.1  skrll 							(SEC_ALLOC
   2804  1.1  skrll 							 | SEC_LOAD
   2805  1.1  skrll 							 | SEC_HAS_CONTENTS
   2806  1.1  skrll 							 | SEC_IN_MEMORY
   2807  1.1  skrll 							 | SEC_LINKER_CREATED
   2808  1.1  skrll 							 | SEC_READONLY));
   2809  1.1  skrll 		  if (sreloc == NULL
   2810  1.1  skrll 		      || !bfd_set_section_alignment (dynobj, sreloc, 2))
   2811  1.1  skrll 		    return FALSE;
   2812  1.1  skrll 		}
   2813  1.1  skrll 	      if (sec->flags & SEC_READONLY)
   2814  1.1  skrll 		info->flags |= DF_TEXTREL;
   2815  1.1  skrll 	    }
   2816  1.1  skrll 
   2817  1.1  skrll 	  sreloc->size += sizeof (Elf32_External_Rela);
   2818  1.1  skrll 
   2819  1.1  skrll 	  /* If we are linking with -Bsymbolic, we count the number of PC
   2820  1.1  skrll 	     relative relocations we have entered for this symbol, so that
   2821  1.1  skrll 	     we can discard them again if the symbol is later defined by a
   2822  1.1  skrll 	     regular object.  We know that h is really a pointer to an
   2823  1.1  skrll 	     elf_cris_link_hash_entry.  */
   2824  1.1  skrll 	  if ((r_type == R_CRIS_8_PCREL
   2825  1.1  skrll 	       || r_type == R_CRIS_16_PCREL
   2826  1.1  skrll 	       || r_type == R_CRIS_32_PCREL)
   2827  1.1  skrll 	      && info->symbolic)
   2828  1.1  skrll 	    {
   2829  1.1  skrll 	      struct elf_cris_link_hash_entry *eh;
   2830  1.1  skrll 	      struct elf_cris_pcrel_relocs_copied *p;
   2831  1.1  skrll 
   2832  1.1  skrll 	      eh = (struct elf_cris_link_hash_entry *) h;
   2833  1.1  skrll 
   2834  1.1  skrll 	      for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
   2835  1.1  skrll 		if (p->section == sreloc)
   2836  1.1  skrll 		  break;
   2837  1.1  skrll 
   2838  1.1  skrll 	      if (p == NULL)
   2839  1.1  skrll 		{
   2840  1.1  skrll 		  p = ((struct elf_cris_pcrel_relocs_copied *)
   2841  1.1  skrll 		       bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
   2842  1.1  skrll 		  if (p == NULL)
   2843  1.1  skrll 		    return FALSE;
   2844  1.1  skrll 		  p->next = eh->pcrel_relocs_copied;
   2845  1.1  skrll 		  eh->pcrel_relocs_copied = p;
   2846  1.1  skrll 		  p->section = sreloc;
   2847  1.1  skrll 		  p->count = 0;
   2848  1.1  skrll 		}
   2849  1.1  skrll 
   2850  1.1  skrll 	      ++p->count;
   2851  1.1  skrll 	    }
   2852  1.1  skrll 	  break;
   2853  1.1  skrll 
   2854  1.1  skrll         /* This relocation describes the C++ object vtable hierarchy.
   2855  1.1  skrll            Reconstruct it for later use during GC.  */
   2856  1.1  skrll         case R_CRIS_GNU_VTINHERIT:
   2857  1.1  skrll           if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
   2858  1.1  skrll             return FALSE;
   2859  1.1  skrll           break;
   2860  1.1  skrll 
   2861  1.1  skrll         /* This relocation describes which C++ vtable entries are actually
   2862  1.1  skrll            used.  Record for later use during GC.  */
   2863  1.1  skrll         case R_CRIS_GNU_VTENTRY:
   2864  1.1  skrll           BFD_ASSERT (h != NULL);
   2865  1.1  skrll           if (h != NULL
   2866  1.1  skrll               && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
   2867  1.1  skrll             return FALSE;
   2868  1.1  skrll           break;
   2869  1.1  skrll 
   2870  1.1  skrll 	default:
   2871  1.1  skrll 	  /* Other relocs do not appear here.  */
   2872  1.1  skrll 	  bfd_set_error (bfd_error_bad_value);
   2873  1.1  skrll 	  return FALSE;
   2874  1.1  skrll         }
   2875  1.1  skrll     }
   2876  1.1  skrll 
   2877  1.1  skrll   return TRUE;
   2878  1.1  skrll }
   2879  1.1  skrll 
   2880  1.1  skrll /* Set the sizes of the dynamic sections.  */
   2881  1.1  skrll 
   2882  1.1  skrll static bfd_boolean
   2883  1.1  skrll elf_cris_size_dynamic_sections (output_bfd, info)
   2884  1.1  skrll      bfd *output_bfd ATTRIBUTE_UNUSED;
   2885  1.1  skrll      struct bfd_link_info *info;
   2886  1.1  skrll {
   2887  1.1  skrll   bfd *dynobj;
   2888  1.1  skrll   asection *s;
   2889  1.1  skrll   bfd_boolean plt;
   2890  1.1  skrll   bfd_boolean relocs;
   2891  1.1  skrll 
   2892  1.1  skrll   dynobj = elf_hash_table (info)->dynobj;
   2893  1.1  skrll   BFD_ASSERT (dynobj != NULL);
   2894  1.1  skrll 
   2895  1.1  skrll   if (elf_hash_table (info)->dynamic_sections_created)
   2896  1.1  skrll     {
   2897  1.1  skrll       /* Set the contents of the .interp section to the interpreter.  */
   2898  1.1  skrll       if (info->executable)
   2899  1.1  skrll 	{
   2900  1.1  skrll 	  s = bfd_get_section_by_name (dynobj, ".interp");
   2901  1.1  skrll 	  BFD_ASSERT (s != NULL);
   2902  1.1  skrll 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
   2903  1.1  skrll 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
   2904  1.1  skrll 	}
   2905  1.1  skrll     }
   2906  1.1  skrll   else
   2907  1.1  skrll     {
   2908  1.1  skrll       /* Adjust all expected GOTPLT uses to use a GOT entry instead.  */
   2909  1.1  skrll       elf_cris_link_hash_traverse (elf_cris_hash_table (info),
   2910  1.1  skrll 				   elf_cris_adjust_gotplt_to_got,
   2911  1.1  skrll 				   (PTR) info);
   2912  1.1  skrll 
   2913  1.1  skrll       /* We may have created entries in the .rela.got section.
   2914  1.1  skrll 	 However, if we are not creating the dynamic sections, we will
   2915  1.1  skrll 	 not actually use these entries.  Reset the size of .rela.got,
   2916  1.1  skrll 	 which will cause it to get stripped from the output file
   2917  1.1  skrll 	 below.  */
   2918  1.1  skrll       s = bfd_get_section_by_name (dynobj, ".rela.got");
   2919  1.1  skrll       if (s != NULL)
   2920  1.1  skrll 	s->size = 0;
   2921  1.1  skrll     }
   2922  1.1  skrll 
   2923  1.1  skrll   /* If this is a -Bsymbolic shared link, then we need to discard all PC
   2924  1.1  skrll      relative relocs against symbols defined in a regular object.  We
   2925  1.1  skrll      allocated space for them in the check_relocs routine, but we will not
   2926  1.1  skrll      fill them in in the relocate_section routine.  We also discard space
   2927  1.1  skrll      for relocs that have become for local symbols due to symbol
   2928  1.1  skrll      visibility changes.  For programs, we discard space for relocs for
   2929  1.1  skrll      symbols not referenced by any dynamic object.  */
   2930  1.1  skrll   if (info->shared)
   2931  1.1  skrll     elf_cris_link_hash_traverse (elf_cris_hash_table (info),
   2932  1.1  skrll 				 elf_cris_discard_excess_dso_dynamics,
   2933  1.1  skrll 				 (PTR) info);
   2934  1.1  skrll   else
   2935  1.1  skrll     elf_cris_link_hash_traverse (elf_cris_hash_table (info),
   2936  1.1  skrll 				 elf_cris_discard_excess_program_dynamics,
   2937  1.1  skrll 				 (PTR) info);
   2938  1.1  skrll 
   2939  1.1  skrll   /* The check_relocs and adjust_dynamic_symbol entry points have
   2940  1.1  skrll      determined the sizes of the various dynamic sections.  Allocate
   2941  1.1  skrll      memory for them.  */
   2942  1.1  skrll   plt = FALSE;
   2943  1.1  skrll   relocs = FALSE;
   2944  1.1  skrll   for (s = dynobj->sections; s != NULL; s = s->next)
   2945  1.1  skrll     {
   2946  1.1  skrll       const char *name;
   2947  1.1  skrll 
   2948  1.1  skrll       if ((s->flags & SEC_LINKER_CREATED) == 0)
   2949  1.1  skrll 	continue;
   2950  1.1  skrll 
   2951  1.1  skrll       /* It's OK to base decisions on the section name, because none
   2952  1.1  skrll 	 of the dynobj section names depend upon the input files.  */
   2953  1.1  skrll       name = bfd_get_section_name (dynobj, s);
   2954  1.1  skrll 
   2955  1.1  skrll       if (strcmp (name, ".plt") == 0)
   2956  1.1  skrll 	{
   2957  1.1  skrll 	  /* Remember whether there is a PLT.  */
   2958  1.1  skrll 	  plt = s->size != 0;
   2959  1.1  skrll 	}
   2960  1.1  skrll       else if (CONST_STRNEQ (name, ".rela"))
   2961  1.1  skrll 	{
   2962  1.1  skrll 	  if (s->size != 0)
   2963  1.1  skrll 	    {
   2964  1.1  skrll 	      /* Remember whether there are any reloc sections other
   2965  1.1  skrll                  than .rela.plt.  */
   2966  1.1  skrll 	      if (strcmp (name, ".rela.plt") != 0)
   2967  1.1  skrll 		  relocs = TRUE;
   2968  1.1  skrll 
   2969  1.1  skrll 	      /* We use the reloc_count field as a counter if we need
   2970  1.1  skrll 		 to copy relocs into the output file.  */
   2971  1.1  skrll 	      s->reloc_count = 0;
   2972  1.1  skrll 	    }
   2973  1.1  skrll 	}
   2974  1.1  skrll       else if (! CONST_STRNEQ (name, ".got")
   2975  1.1  skrll 	       && strcmp (name, ".dynbss") != 0)
   2976  1.1  skrll 	{
   2977  1.1  skrll 	  /* It's not one of our sections, so don't allocate space.  */
   2978  1.1  skrll 	  continue;
   2979  1.1  skrll 	}
   2980  1.1  skrll 
   2981  1.1  skrll       if (s->size == 0)
   2982  1.1  skrll 	{
   2983  1.1  skrll 	  /* If we don't need this section, strip it from the
   2984  1.1  skrll 	     output file.  This is mostly to handle .rela.bss and
   2985  1.1  skrll 	     .rela.plt.  We must create both sections in
   2986  1.1  skrll 	     create_dynamic_sections, because they must be created
   2987  1.1  skrll 	     before the linker maps input sections to output
   2988  1.1  skrll 	     sections.  The linker does that before
   2989  1.1  skrll 	     adjust_dynamic_symbol is called, and it is that
   2990  1.1  skrll 	     function which decides whether anything needs to go
   2991  1.1  skrll 	     into these sections.  */
   2992  1.1  skrll 	  s->flags |= SEC_EXCLUDE;
   2993  1.1  skrll 	  continue;
   2994  1.1  skrll 	}
   2995  1.1  skrll 
   2996  1.1  skrll       if ((s->flags & SEC_HAS_CONTENTS) == 0)
   2997  1.1  skrll 	continue;
   2998  1.1  skrll 
   2999  1.1  skrll       /* Allocate memory for the section contents. We use bfd_zalloc here
   3000  1.1  skrll 	 in case unused entries are not reclaimed before the section's
   3001  1.1  skrll 	 contents are written out.  This should not happen, but this way
   3002  1.1  skrll 	 if it does, we will not write out garbage.  For reloc sections,
   3003  1.1  skrll 	 this will make entries have the type R_CRIS_NONE.  */
   3004  1.1  skrll       s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
   3005  1.1  skrll       if (s->contents == NULL)
   3006  1.1  skrll 	return FALSE;
   3007  1.1  skrll     }
   3008  1.1  skrll 
   3009  1.1  skrll   if (elf_hash_table (info)->dynamic_sections_created)
   3010  1.1  skrll     {
   3011  1.1  skrll       /* Add some entries to the .dynamic section.  We fill in the
   3012  1.1  skrll 	 values later, in elf_cris_finish_dynamic_sections, but we
   3013  1.1  skrll 	 must add the entries now so that we get the correct size for
   3014  1.1  skrll 	 the .dynamic section.  The DT_DEBUG entry is filled in by the
   3015  1.1  skrll 	 dynamic linker and used by the debugger.  */
   3016  1.1  skrll #define add_dynamic_entry(TAG, VAL) \
   3017  1.1  skrll   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
   3018  1.1  skrll 
   3019  1.1  skrll       if (!info->shared)
   3020  1.1  skrll 	{
   3021  1.1  skrll 	  if (!add_dynamic_entry (DT_DEBUG, 0))
   3022  1.1  skrll 	    return FALSE;
   3023  1.1  skrll 	}
   3024  1.1  skrll 
   3025  1.1  skrll       if (plt)
   3026  1.1  skrll 	{
   3027  1.1  skrll 	  if (!add_dynamic_entry (DT_PLTGOT, 0)
   3028  1.1  skrll 	      || !add_dynamic_entry (DT_PLTRELSZ, 0)
   3029  1.1  skrll 	      || !add_dynamic_entry (DT_PLTREL, DT_RELA)
   3030  1.1  skrll 	      || !add_dynamic_entry (DT_JMPREL, 0))
   3031  1.1  skrll 	    return FALSE;
   3032  1.1  skrll 	}
   3033  1.1  skrll 
   3034  1.1  skrll       if (relocs)
   3035  1.1  skrll 	{
   3036  1.1  skrll 	  if (!add_dynamic_entry (DT_RELA, 0)
   3037  1.1  skrll 	      || !add_dynamic_entry (DT_RELASZ, 0)
   3038  1.1  skrll 	      || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
   3039  1.1  skrll 	    return FALSE;
   3040  1.1  skrll 	}
   3041  1.1  skrll 
   3042  1.1  skrll       if ((info->flags & DF_TEXTREL) != 0)
   3043  1.1  skrll 	{
   3044  1.1  skrll 	  if (!add_dynamic_entry (DT_TEXTREL, 0))
   3045  1.1  skrll 	    return FALSE;
   3046  1.1  skrll 	  info->flags |= DF_TEXTREL;
   3047  1.1  skrll 	}
   3048  1.1  skrll     }
   3049  1.1  skrll #undef add_dynamic_entry
   3050  1.1  skrll 
   3051  1.1  skrll   return TRUE;
   3052  1.1  skrll }
   3053  1.1  skrll 
   3054  1.1  skrll /* This function is called via elf_cris_link_hash_traverse if we are
   3055  1.1  skrll    creating a shared object.  In the -Bsymbolic case, it discards the
   3056  1.1  skrll    space allocated to copy PC relative relocs against symbols which
   3057  1.1  skrll    are defined in regular objects.  For the normal non-symbolic case,
   3058  1.1  skrll    we also discard space for relocs that have become local due to
   3059  1.1  skrll    symbol visibility changes.  We allocated space for them in the
   3060  1.1  skrll    check_relocs routine, but we won't fill them in in the
   3061  1.1  skrll    relocate_section routine.  */
   3062  1.1  skrll 
   3063  1.1  skrll static bfd_boolean
   3064  1.1  skrll elf_cris_discard_excess_dso_dynamics (h, inf)
   3065  1.1  skrll      struct elf_cris_link_hash_entry *h;
   3066  1.1  skrll      PTR inf;
   3067  1.1  skrll {
   3068  1.1  skrll   struct elf_cris_pcrel_relocs_copied *s;
   3069  1.1  skrll   struct bfd_link_info *info = (struct bfd_link_info *) inf;
   3070  1.1  skrll 
   3071  1.1  skrll   if (h->root.root.type == bfd_link_hash_warning)
   3072  1.1  skrll     h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
   3073  1.1  skrll 
   3074  1.1  skrll   /* If a symbol has been forced local or we have found a regular
   3075  1.1  skrll      definition for the symbolic link case, then we won't be needing
   3076  1.1  skrll      any relocs.  */
   3077  1.1  skrll   if (h->root.def_regular
   3078  1.1  skrll       && (h->root.forced_local
   3079  1.1  skrll 	  || info->symbolic))
   3080  1.1  skrll     {
   3081  1.1  skrll       for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
   3082  1.1  skrll 	s->section->size -= s->count * sizeof (Elf32_External_Rela);
   3083  1.1  skrll     }
   3084  1.1  skrll 
   3085  1.1  skrll   return TRUE;
   3086  1.1  skrll }
   3087  1.1  skrll 
   3088  1.1  skrll /* This function is called via elf_cris_link_hash_traverse if we are *not*
   3089  1.1  skrll    creating a shared object.  We discard space for relocs for symbols put
   3090  1.1  skrll    in the .got, but which we found we do not have to resolve at run-time.  */
   3091  1.1  skrll 
   3092  1.1  skrll static bfd_boolean
   3093  1.1  skrll elf_cris_discard_excess_program_dynamics (h, inf)
   3094  1.1  skrll      struct elf_cris_link_hash_entry *h;
   3095  1.1  skrll      PTR inf;
   3096  1.1  skrll {
   3097  1.1  skrll   struct bfd_link_info *info = (struct bfd_link_info *) inf;
   3098  1.1  skrll 
   3099  1.1  skrll   if (h->root.root.type == bfd_link_hash_warning)
   3100  1.1  skrll     h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
   3101  1.1  skrll 
   3102  1.1  skrll   /* If we're not creating a shared library and have a symbol which is
   3103  1.1  skrll      referred to by .got references, but the symbol is defined locally,
   3104  1.1  skrll      (or rather, not defined by a DSO) then lose the reloc for the .got
   3105  1.1  skrll      (don't allocate room for it).  Likewise for relocs for something
   3106  1.1  skrll      for which we create a PLT.  */
   3107  1.1  skrll   if (!h->root.def_dynamic
   3108  1.1  skrll       || h->root.plt.refcount > 0)
   3109  1.1  skrll     {
   3110  1.1  skrll       if (h->root.got.refcount > 0
   3111  1.1  skrll 	  /* The size of this section is only valid and in sync with the
   3112  1.1  skrll 	     various reference counts if we do dynamic; don't decrement it
   3113  1.1  skrll 	     otherwise.  */
   3114  1.1  skrll 	  && elf_hash_table (info)->dynamic_sections_created)
   3115  1.1  skrll 	{
   3116  1.1  skrll 	  bfd *dynobj = elf_hash_table (info)->dynobj;
   3117  1.1  skrll 	  asection *srelgot;
   3118  1.1  skrll 
   3119  1.1  skrll 	  BFD_ASSERT (dynobj != NULL);
   3120  1.1  skrll 
   3121  1.1  skrll 	  srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
   3122  1.1  skrll 
   3123  1.1  skrll 	  BFD_ASSERT (srelgot != NULL);
   3124  1.1  skrll 
   3125  1.1  skrll 	  srelgot->size -= sizeof (Elf32_External_Rela);
   3126  1.1  skrll 	}
   3127  1.1  skrll 
   3128  1.1  skrll       /* If the locally-defined symbol isn't used by a DSO, then we don't
   3129  1.1  skrll 	 have to export it as a dynamic symbol.  This was already done for
   3130  1.1  skrll 	 functions; doing this for all symbols would presumably not
   3131  1.1  skrll 	 introduce new problems.  Of course we don't do this if we're
   3132  1.1  skrll 	 exporting all dynamic symbols.  */
   3133  1.1  skrll       if (! info->export_dynamic
   3134  1.1  skrll 	  && h->root.dynindx != -1
   3135  1.1  skrll 	  && !h->root.def_dynamic
   3136  1.1  skrll 	  && !h->root.ref_dynamic)
   3137  1.1  skrll 	{
   3138  1.1  skrll 	  h->root.dynindx = -1;
   3139  1.1  skrll 	  _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
   3140  1.1  skrll 				  h->root.dynstr_index);
   3141  1.1  skrll 	}
   3142  1.1  skrll     }
   3143  1.1  skrll 
   3144  1.1  skrll   return TRUE;
   3145  1.1  skrll }
   3146  1.1  skrll 
   3147  1.1  skrll /* Reject a file depending on presence and expectation of prefixed
   3148  1.1  skrll    underscores on symbols.  */
   3149  1.1  skrll 
   3150  1.1  skrll static bfd_boolean
   3151  1.1  skrll cris_elf_object_p (abfd)
   3152  1.1  skrll      bfd *abfd;
   3153  1.1  skrll {
   3154  1.1  skrll   if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags))
   3155  1.1  skrll     return FALSE;
   3156  1.1  skrll 
   3157  1.1  skrll   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
   3158  1.1  skrll     return (bfd_get_symbol_leading_char (abfd) == '_');
   3159  1.1  skrll   else
   3160  1.1  skrll     return (bfd_get_symbol_leading_char (abfd) == 0);
   3161  1.1  skrll }
   3162  1.1  skrll 
   3163  1.1  skrll /* Mark presence or absence of leading underscore.  Set machine type
   3164  1.1  skrll    flags from mach type.  */
   3165  1.1  skrll 
   3166  1.1  skrll static void
   3167  1.1  skrll cris_elf_final_write_processing (abfd, linker)
   3168  1.1  skrll      bfd *abfd;
   3169  1.1  skrll      bfd_boolean linker ATTRIBUTE_UNUSED;
   3170  1.1  skrll {
   3171  1.1  skrll   unsigned long e_flags = elf_elfheader (abfd)->e_flags;
   3172  1.1  skrll 
   3173  1.1  skrll   e_flags &= ~EF_CRIS_UNDERSCORE;
   3174  1.1  skrll   if (bfd_get_symbol_leading_char (abfd) == '_')
   3175  1.1  skrll     e_flags |= EF_CRIS_UNDERSCORE;
   3176  1.1  skrll 
   3177  1.1  skrll   switch (bfd_get_mach (abfd))
   3178  1.1  skrll     {
   3179  1.1  skrll     case bfd_mach_cris_v0_v10:
   3180  1.1  skrll       e_flags |= EF_CRIS_VARIANT_ANY_V0_V10;
   3181  1.1  skrll       break;
   3182  1.1  skrll 
   3183  1.1  skrll     case bfd_mach_cris_v10_v32:
   3184  1.1  skrll       e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32;
   3185  1.1  skrll       break;
   3186  1.1  skrll 
   3187  1.1  skrll     case bfd_mach_cris_v32:
   3188  1.1  skrll       e_flags |= EF_CRIS_VARIANT_V32;
   3189  1.1  skrll       break;
   3190  1.1  skrll 
   3191  1.1  skrll     default:
   3192  1.1  skrll       _bfd_abort (__FILE__, __LINE__,
   3193  1.1  skrll 		  _("Unexpected machine number"));
   3194  1.1  skrll     }
   3195  1.1  skrll 
   3196  1.1  skrll   elf_elfheader (abfd)->e_flags = e_flags;
   3197  1.1  skrll }
   3198  1.1  skrll 
   3199  1.1  skrll /* Set the mach type from e_flags value.  */
   3200  1.1  skrll 
   3201  1.1  skrll static bfd_boolean
   3202  1.1  skrll cris_elf_set_mach_from_flags (abfd, flags)
   3203  1.1  skrll      bfd *abfd;
   3204  1.1  skrll      unsigned long flags;
   3205  1.1  skrll {
   3206  1.1  skrll   switch (flags & EF_CRIS_VARIANT_MASK)
   3207  1.1  skrll     {
   3208  1.1  skrll     case EF_CRIS_VARIANT_ANY_V0_V10:
   3209  1.1  skrll       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10);
   3210  1.1  skrll       break;
   3211  1.1  skrll 
   3212  1.1  skrll     case EF_CRIS_VARIANT_V32:
   3213  1.1  skrll       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32);
   3214  1.1  skrll       break;
   3215  1.1  skrll 
   3216  1.1  skrll     case EF_CRIS_VARIANT_COMMON_V10_V32:
   3217  1.1  skrll       bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32);
   3218  1.1  skrll       break;
   3219  1.1  skrll 
   3220  1.1  skrll     default:
   3221  1.1  skrll       /* Since we don't recognize them, we obviously can't support them
   3222  1.1  skrll 	 with this code; we'd have to require that all future handling
   3223  1.1  skrll 	 would be optional.  */
   3224  1.1  skrll       bfd_set_error (bfd_error_wrong_format);
   3225  1.1  skrll       return FALSE;
   3226  1.1  skrll     }
   3227  1.1  skrll 
   3228  1.1  skrll   return TRUE;
   3229  1.1  skrll }
   3230  1.1  skrll 
   3231  1.1  skrll /* Display the flags field.  */
   3232  1.1  skrll 
   3233  1.1  skrll static bfd_boolean
   3234  1.1  skrll cris_elf_print_private_bfd_data (abfd, ptr)
   3235  1.1  skrll      bfd *abfd;
   3236  1.1  skrll      PTR ptr;
   3237  1.1  skrll {
   3238  1.1  skrll   FILE *file = (FILE *) ptr;
   3239  1.1  skrll 
   3240  1.1  skrll   BFD_ASSERT (abfd != NULL && ptr != NULL);
   3241  1.1  skrll 
   3242  1.1  skrll   _bfd_elf_print_private_bfd_data (abfd, ptr);
   3243  1.1  skrll 
   3244  1.1  skrll   fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
   3245  1.1  skrll 
   3246  1.1  skrll   if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
   3247  1.1  skrll     fprintf (file, _(" [symbols have a _ prefix]"));
   3248  1.1  skrll   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
   3249  1.1  skrll       == EF_CRIS_VARIANT_COMMON_V10_V32)
   3250  1.1  skrll     fprintf (file, _(" [v10 and v32]"));
   3251  1.1  skrll   if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
   3252  1.1  skrll       == EF_CRIS_VARIANT_V32)
   3253  1.1  skrll     fprintf (file, _(" [v32]"));
   3254  1.1  skrll 
   3255  1.1  skrll   fputc ('\n', file);
   3256  1.1  skrll   return TRUE;
   3257  1.1  skrll }
   3258  1.1  skrll 
   3259  1.1  skrll /* Don't mix files with and without a leading underscore.  */
   3260  1.1  skrll 
   3261  1.1  skrll static bfd_boolean
   3262  1.1  skrll cris_elf_merge_private_bfd_data (ibfd, obfd)
   3263  1.1  skrll      bfd *ibfd;
   3264  1.1  skrll      bfd *obfd;
   3265  1.1  skrll {
   3266  1.1  skrll   int imach, omach;
   3267  1.1  skrll 
   3268  1.1  skrll   if (! _bfd_generic_verify_endian_match (ibfd, obfd))
   3269  1.1  skrll     return FALSE;
   3270  1.1  skrll 
   3271  1.1  skrll   if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
   3272  1.1  skrll       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
   3273  1.1  skrll     return TRUE;
   3274  1.1  skrll 
   3275  1.1  skrll   imach = bfd_get_mach (ibfd);
   3276  1.1  skrll 
   3277  1.1  skrll   if (! elf_flags_init (obfd))
   3278  1.1  skrll     {
   3279  1.1  skrll       /* This happens when ld starts out with a 'blank' output file.  */
   3280  1.1  skrll       elf_flags_init (obfd) = TRUE;
   3281  1.1  skrll 
   3282  1.1  skrll       /* We ignore the linker-set mach, and instead set it according to
   3283  1.1  skrll 	 the first input file.  This would also happen if we could
   3284  1.1  skrll 	 somehow filter out the OUTPUT_ARCH () setting from elf.sc.
   3285  1.1  skrll 	 This allows us to keep the same linker config across
   3286  1.1  skrll 	 cris(v0..v10) and crisv32.  The drawback is that we can't force
   3287  1.1  skrll 	 the output type, which might be a sane thing to do for a
   3288  1.1  skrll 	 v10+v32 compatibility object.  */
   3289  1.1  skrll       if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
   3290  1.1  skrll 	return FALSE;
   3291  1.1  skrll     }
   3292  1.1  skrll 
   3293  1.1  skrll   if (bfd_get_symbol_leading_char (ibfd)
   3294  1.1  skrll       != bfd_get_symbol_leading_char (obfd))
   3295  1.1  skrll     {
   3296  1.1  skrll       (*_bfd_error_handler)
   3297  1.1  skrll 	(bfd_get_symbol_leading_char (ibfd) == '_'
   3298  1.1  skrll 	 ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
   3299  1.1  skrll 	 : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
   3300  1.1  skrll 	 ibfd);
   3301  1.1  skrll       bfd_set_error (bfd_error_bad_value);
   3302  1.1  skrll       return FALSE;
   3303  1.1  skrll     }
   3304  1.1  skrll 
   3305  1.1  skrll   omach = bfd_get_mach (obfd);
   3306  1.1  skrll 
   3307  1.1  skrll   if (imach != omach)
   3308  1.1  skrll     {
   3309  1.1  skrll       /* We can get an incompatible combination only if either is
   3310  1.1  skrll 	 bfd_mach_cris_v32, and the other one isn't compatible.  */
   3311  1.1  skrll       if ((imach == bfd_mach_cris_v32
   3312  1.1  skrll 	   && omach != bfd_mach_cris_v10_v32)
   3313  1.1  skrll 	  || (omach == bfd_mach_cris_v32
   3314  1.1  skrll 	      && imach != bfd_mach_cris_v10_v32))
   3315  1.1  skrll 	{
   3316  1.1  skrll 	  (*_bfd_error_handler)
   3317  1.1  skrll 	    ((imach == bfd_mach_cris_v32)
   3318  1.1  skrll 	     ? _("%B contains CRIS v32 code, incompatible"
   3319  1.1  skrll 		 " with previous objects")
   3320  1.1  skrll 	     : _("%B contains non-CRIS-v32 code, incompatible"
   3321  1.1  skrll 		 " with previous objects"),
   3322  1.1  skrll 	     ibfd);
   3323  1.1  skrll 	  bfd_set_error (bfd_error_bad_value);
   3324  1.1  skrll 	  return FALSE;
   3325  1.1  skrll 	}
   3326  1.1  skrll 
   3327  1.1  skrll       /* We don't have to check the case where the input is compatible
   3328  1.1  skrll 	 with v10 and v32, because the output is already known to be set
   3329  1.1  skrll 	 to the other (compatible) mach.  */
   3330  1.1  skrll       if (omach == bfd_mach_cris_v10_v32
   3331  1.1  skrll 	  && ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
   3332  1.1  skrll 	return FALSE;
   3333  1.1  skrll     }
   3334  1.1  skrll 
   3335  1.1  skrll   return TRUE;
   3336  1.1  skrll }
   3337  1.1  skrll 
   3338  1.1  skrll /* Do side-effects of e_flags copying to obfd.  */
   3339  1.1  skrll 
   3340  1.1  skrll static bfd_boolean
   3341  1.1  skrll cris_elf_copy_private_bfd_data (ibfd, obfd)
   3342  1.1  skrll      bfd *ibfd;
   3343  1.1  skrll      bfd *obfd;
   3344  1.1  skrll {
   3345  1.1  skrll   /* Call the base function.  */
   3346  1.1  skrll   if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd))
   3347  1.1  skrll     return FALSE;
   3348  1.1  skrll 
   3349  1.1  skrll   /* If output is big-endian for some obscure reason, stop here.  */
   3350  1.1  skrll   if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
   3351  1.1  skrll     return FALSE;
   3352  1.1  skrll 
   3353  1.1  skrll   if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
   3354  1.1  skrll       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
   3355  1.1  skrll     return TRUE;
   3356  1.1  skrll 
   3357  1.1  skrll   /* Do what we really came here for.  */
   3358  1.1  skrll   return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd));
   3359  1.1  skrll }
   3360  1.1  skrll 
   3361  1.1  skrll static enum elf_reloc_type_class
   3362  1.1  skrll elf_cris_reloc_type_class (rela)
   3363  1.1  skrll      const Elf_Internal_Rela *rela;
   3364  1.1  skrll {
   3365  1.1  skrll   switch ((int) ELF32_R_TYPE (rela->r_info))
   3366  1.1  skrll     {
   3367  1.1  skrll     case R_CRIS_RELATIVE:
   3368  1.1  skrll       return reloc_class_relative;
   3369  1.1  skrll     case R_CRIS_JUMP_SLOT:
   3370  1.1  skrll       return reloc_class_plt;
   3371  1.1  skrll     case R_CRIS_COPY:
   3372  1.1  skrll       return reloc_class_copy;
   3373  1.1  skrll     default:
   3374  1.1  skrll       return reloc_class_normal;
   3375  1.1  skrll     }
   3376  1.1  skrll }
   3377  1.1  skrll 
   3378  1.1  skrll #define ELF_ARCH		bfd_arch_cris
   3380  1.1  skrll #define ELF_MACHINE_CODE	EM_CRIS
   3381  1.1  skrll #define ELF_MAXPAGESIZE		0x2000
   3382  1.1  skrll 
   3383  1.1  skrll #define TARGET_LITTLE_SYM	bfd_elf32_cris_vec
   3384  1.1  skrll #define TARGET_LITTLE_NAME	"elf32-cris"
   3385  1.1  skrll #define elf_symbol_leading_char 0
   3386  1.1  skrll 
   3387  1.1  skrll #define elf_info_to_howto_rel			NULL
   3388  1.1  skrll #define elf_info_to_howto			cris_info_to_howto_rela
   3389  1.1  skrll #define elf_backend_relocate_section		cris_elf_relocate_section
   3390  1.1  skrll #define elf_backend_gc_mark_hook		cris_elf_gc_mark_hook
   3391  1.1  skrll #define elf_backend_gc_sweep_hook		cris_elf_gc_sweep_hook
   3392  1.1  skrll #define elf_backend_check_relocs                cris_elf_check_relocs
   3393  1.1  skrll #define elf_backend_grok_prstatus		cris_elf_grok_prstatus
   3394  1.1  skrll #define elf_backend_grok_psinfo			cris_elf_grok_psinfo
   3395  1.1  skrll 
   3396  1.1  skrll #define elf_backend_can_gc_sections		1
   3397  1.1  skrll #define elf_backend_can_refcount		1
   3398  1.1  skrll 
   3399  1.1  skrll #define elf_backend_object_p			cris_elf_object_p
   3400  1.1  skrll #define elf_backend_final_write_processing \
   3401  1.1  skrll 	cris_elf_final_write_processing
   3402  1.1  skrll #define bfd_elf32_bfd_print_private_bfd_data \
   3403  1.1  skrll 	cris_elf_print_private_bfd_data
   3404  1.1  skrll #define bfd_elf32_bfd_merge_private_bfd_data \
   3405  1.1  skrll 	cris_elf_merge_private_bfd_data
   3406  1.1  skrll #define bfd_elf32_bfd_copy_private_bfd_data \
   3407  1.1  skrll 	cris_elf_copy_private_bfd_data
   3408  1.1  skrll 
   3409  1.1  skrll #define bfd_elf32_bfd_reloc_type_lookup		cris_reloc_type_lookup
   3410  1.1  skrll #define bfd_elf32_bfd_reloc_name_lookup	cris_reloc_name_lookup
   3411  1.1  skrll 
   3412  1.1  skrll #define bfd_elf32_bfd_link_hash_table_create \
   3413  1.1  skrll 	elf_cris_link_hash_table_create
   3414  1.1  skrll #define elf_backend_adjust_dynamic_symbol \
   3415  1.1  skrll 	elf_cris_adjust_dynamic_symbol
   3416  1.1  skrll #define elf_backend_size_dynamic_sections \
   3417  1.1  skrll 	elf_cris_size_dynamic_sections
   3418  1.1  skrll #define elf_backend_init_index_section		_bfd_elf_init_1_index_section
   3419  1.1  skrll #define elf_backend_finish_dynamic_symbol \
   3420  1.1  skrll 	elf_cris_finish_dynamic_symbol
   3421  1.1  skrll #define elf_backend_finish_dynamic_sections \
   3422  1.1  skrll 	elf_cris_finish_dynamic_sections
   3423  1.1  skrll #define elf_backend_create_dynamic_sections \
   3424  1.1  skrll 	_bfd_elf_create_dynamic_sections
   3425  1.1  skrll #define bfd_elf32_bfd_final_link \
   3426  1.1  skrll 	bfd_elf_gc_common_final_link
   3427  1.1  skrll #define elf_backend_hide_symbol			elf_cris_hide_symbol
   3428  1.1  skrll #define elf_backend_reloc_type_class		elf_cris_reloc_type_class
   3429  1.1  skrll 
   3430  1.1  skrll #define elf_backend_want_got_plt	1
   3431  1.1  skrll #define elf_backend_plt_readonly	1
   3432  1.1  skrll #define elf_backend_want_plt_sym	0
   3433  1.1  skrll #define elf_backend_got_header_size	12
   3434  1.1  skrll 
   3435  1.1  skrll /* Later, we my want to optimize RELA entries into REL entries for dynamic
   3436  1.1  skrll    linking and libraries (if it's a win of any significance).  Until then,
   3437  1.1  skrll    take the easy route.  */
   3438  1.1  skrll #define elf_backend_may_use_rel_p 0
   3439  1.1  skrll #define elf_backend_may_use_rela_p 1
   3440  1.1  skrll #define elf_backend_rela_normal		1
   3441  1.1  skrll 
   3442  1.1  skrll #include "elf32-target.h"
   3443  1.1  skrll 
   3444  1.1  skrll #undef TARGET_LITTLE_SYM
   3445             #undef TARGET_LITTLE_NAME
   3446             #undef elf_symbol_leading_char
   3447             
   3448             #define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
   3449             #define TARGET_LITTLE_NAME "elf32-us-cris"
   3450             #define elf_symbol_leading_char '_'
   3451             #undef elf32_bed
   3452             #define elf32_bed elf32_us_cris_bed
   3453             
   3454             #include "elf32-target.h"
   3455