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cell-binutils  2.17cvs20070401
Classes | Defines | Functions | Variables
elf32-cris.c File Reference
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/cris.h"
#include "elf32-target.h"

Go to the source code of this file.

Classes

struct  cris_reloc_map
struct  elf_cris_pcrel_relocs_copied
struct  elf_cris_link_hash_entry

Defines

#define ELF_DYNAMIC_INTERPRETER   "/lib/ld.so.1"
#define PLT_ENTRY_SIZE   20
#define PLT_ENTRY_SIZE_V32   26
#define elf_cris_link_hash_traverse(table, func, info)
#define elf_cris_hash_table(p)   ((struct elf_cris_link_hash_table *) (p)->hash)
#define add_dynamic_entry(TAG, VAL)   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
#define ELF_ARCH   bfd_arch_cris
#define ELF_MACHINE_CODE   EM_CRIS
#define ELF_MAXPAGESIZE   0x2000
#define TARGET_LITTLE_SYM   bfd_elf32_cris_vec
#define TARGET_LITTLE_NAME   "elf32-cris"
#define elf_symbol_leading_char   0
#define elf_info_to_howto_rel   NULL
#define elf_info_to_howto   cris_info_to_howto_rela
#define elf_backend_relocate_section   cris_elf_relocate_section
#define elf_backend_gc_mark_hook   cris_elf_gc_mark_hook
#define elf_backend_gc_sweep_hook   cris_elf_gc_sweep_hook
#define elf_backend_check_relocs   cris_elf_check_relocs
#define elf_backend_grok_prstatus   cris_elf_grok_prstatus
#define elf_backend_grok_psinfo   cris_elf_grok_psinfo
#define elf_backend_can_gc_sections   1
#define elf_backend_can_refcount   1
#define elf_backend_object_p   cris_elf_object_p
#define elf_backend_final_write_processing   cris_elf_final_write_processing
#define bfd_elf32_bfd_print_private_bfd_data   cris_elf_print_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data   cris_elf_merge_private_bfd_data
#define bfd_elf32_bfd_copy_private_bfd_data   cris_elf_copy_private_bfd_data
#define bfd_elf32_bfd_reloc_type_lookup   cris_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup   cris_reloc_name_lookup
#define bfd_elf32_bfd_link_hash_table_create   elf_cris_link_hash_table_create
#define elf_backend_adjust_dynamic_symbol   elf_cris_adjust_dynamic_symbol
#define elf_backend_size_dynamic_sections   elf_cris_size_dynamic_sections
#define elf_backend_init_index_section   _bfd_elf_init_1_index_section
#define elf_backend_finish_dynamic_symbol   elf_cris_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections   elf_cris_finish_dynamic_sections
#define elf_backend_create_dynamic_sections   _bfd_elf_create_dynamic_sections
#define bfd_elf32_bfd_final_link   bfd_elf_gc_common_final_link
#define elf_backend_hide_symbol   elf_cris_hide_symbol
#define elf_backend_reloc_type_class   elf_cris_reloc_type_class
#define elf_backend_want_got_plt   1
#define elf_backend_plt_readonly   1
#define elf_backend_want_plt_sym   0
#define elf_backend_got_header_size   12
#define elf_backend_may_use_rel_p   0
#define elf_backend_may_use_rela_p   1
#define elf_backend_rela_normal   1
#define TARGET_LITTLE_SYM   bfd_elf32_us_cris_vec
#define TARGET_LITTLE_NAME   "elf32-us-cris"
#define elf_symbol_leading_char   '_'
#define elf32_bed   elf32_us_cris_bed

Functions

static reloc_howto_type
*cris_reloc_type_lookup 
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code))
static void cris_info_to_howto_rela PARAMS ((bfd *, arelent *, Elf_Internal_Rela *))
static bfd_reloc_status_type
cris_elf_pcrel_reloc 
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **))
static bfd_boolean
cris_elf_grok_prstatus 
PARAMS ((bfd *abfd, Elf_Internal_Note *note))
static bfd_boolean
cris_elf_relocate_section 
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **))
static bfd_reloc_status_type
cris_final_link_relocate 
PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, bfd_vma))
static bfd_boolean
cris_elf_object_p 
PARAMS ((bfd *))
static void
cris_elf_final_write_processing 
PARAMS ((bfd *, bfd_boolean))
static bfd_boolean
cris_elf_set_mach_from_flags 
PARAMS ((bfd *, unsigned long int))
static bfd_boolean
cris_elf_print_private_bfd_data 
PARAMS ((bfd *, PTR))
static bfd_boolean
cris_elf_merge_private_bfd_data 
PARAMS ((bfd *, bfd *))
static bfd_boolean
elf_cris_discard_excess_dso_dynamics 
PARAMS ((struct elf_cris_link_hash_entry *, PTR))
static struct bfd_hash_entry
*elf_cris_link_hash_newfunc 
PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *))
static bfd_boolean
elf_cris_adjust_dynamic_symbol 
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *))
static bfd_boolean
cris_elf_check_relocs 
PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *))
static bfd_boolean
elf_cris_size_dynamic_sections 
PARAMS ((bfd *, struct bfd_link_info *))
static bfd_boolean
elf_cris_finish_dynamic_symbol 
PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, Elf_Internal_Sym *))
static void elf_cris_hide_symbol PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean))
static enum elf_reloc_type_class PARAMS ((const Elf_Internal_Rela *))
static reloc_howto_type * cris_reloc_type_lookup (abfd, bfd_reloc_code_real_type code)
static reloc_howto_type * cris_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
static void cris_info_to_howto_rela (abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
bfd_reloc_status_type cris_elf_pcrel_reloc (abfd, arelent *reloc_entry, asymbol *symbol, data, asection *input_section, bfd *output_bfd, error_message)
static bfd_boolean cris_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
static bfd_boolean cris_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
static struct bfd_hash_entryelf_cris_link_hash_newfunc (struct bfd_hash_entry *entry, struct bfd_hash_table *table, const char *string)
static struct bfd_link_hash_tableelf_cris_link_hash_table_create (bfd *abfd)
static bfd_reloc_status_type cris_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd, asection *input_section, bfd_byte *contents, Elf_Internal_Rela *rel, bfd_vma relocation)
static bfd_boolean cris_elf_relocate_section (output_bfd, struct bfd_link_info *info, bfd *input_bfd, asection *input_section, bfd_byte *contents, Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms, asection **local_sections)
static bfd_boolean elf_cris_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, struct elf_link_hash_entry *h, Elf_Internal_Sym *sym)
static bfd_boolean elf_cris_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
static asectioncris_elf_gc_mark_hook (asection *sec, struct bfd_link_info *info, Elf_Internal_Rela *rel, struct elf_link_hash_entry *h, Elf_Internal_Sym *sym)
static bfd_boolean cris_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, asection *sec, const Elf_Internal_Rela *relocs)
static bfd_boolean elf_cris_adjust_gotplt_to_got (struct elf_cris_link_hash_entry *h, PTR p)
static bfd_boolean elf_cris_try_fold_plt_to_got (struct elf_cris_link_hash_entry *h, PTR p)
static void elf_cris_hide_symbol (struct bfd_link_info *info, struct elf_link_hash_entry *h, bfd_boolean force_local)
static bfd_boolean elf_cris_adjust_dynamic_symbol (struct bfd_link_info *info, struct elf_link_hash_entry *h)
static bfd_boolean cris_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, const Elf_Internal_Rela *relocs)
static bfd_boolean elf_cris_size_dynamic_sections (output_bfd, struct bfd_link_info *info)
static bfd_boolean elf_cris_discard_excess_dso_dynamics (struct elf_cris_link_hash_entry *h, PTR inf)
static bfd_boolean elf_cris_discard_excess_program_dynamics (struct elf_cris_link_hash_entry *h, PTR inf)
static bfd_boolean cris_elf_object_p (bfd *abfd)
static void cris_elf_final_write_processing (bfd *abfd, linker)
static bfd_boolean cris_elf_set_mach_from_flags (bfd *abfd, unsigned long flags)
static bfd_boolean cris_elf_print_private_bfd_data (bfd *abfd, PTR ptr)
static bfd_boolean cris_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
static bfd_boolean cris_elf_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
static enum elf_reloc_type_class elf_cris_reloc_type_class (Elf_Internal_Rela *rela) const

Variables

static reloc_howto_type cris_elf_howto_table []
static struct cris_reloc_map []
static const bfd_byte elf_cris_plt0_entry [PLT_ENTRY_SIZE]
static const bfd_byte elf_cris_plt0_entry_v32 [PLT_ENTRY_SIZE_V32]
static const bfd_byte elf_cris_plt_entry [PLT_ENTRY_SIZE]
static const bfd_byte elf_cris_plt_entry_v32 [PLT_ENTRY_SIZE_V32]
static const bfd_byte elf_cris_pic_plt0_entry [PLT_ENTRY_SIZE]
static const bfd_byte elf_cris_pic_plt0_entry_v32 [PLT_ENTRY_SIZE_V32]
static const bfd_byte elf_cris_pic_plt_entry [PLT_ENTRY_SIZE]
static const bfd_byte elf_cris_pic_plt_entry_v32 [PLT_ENTRY_SIZE_V32]

Class Documentation

struct cris_reloc_map

Definition at line 416 of file elf32-cris.c.

Class Members
bfd_reloc_code_real_type bfd_reloc_val
unsigned int cris_reloc_val
struct elf_cris_pcrel_relocs_copied

Definition at line 754 of file elf32-cris.c.

Collaboration diagram for elf_cris_pcrel_relocs_copied:
Class Members
bfd_size_type count
struct
elf_cris_pcrel_relocs_copied *
next
asection * section
struct elf_cris_link_hash_entry

Definition at line 766 of file elf32-cris.c.

Collaboration diagram for elf_cris_link_hash_entry:
Class Members
bfd_size_type gotplt_offset
bfd_signed_vma gotplt_refcount
struct
elf_cris_pcrel_relocs_copied *
pcrel_relocs_copied
struct elf_cris_link_hash_table

Definition at line 789 of file elf32-cris.c.

Class Members
bfd_size_type next_gotplt_entry

Define Documentation

#define add_dynamic_entry (   TAG,
  VAL 
)    _bfd_elf_add_dynamic_entry (info, TAG, VAL)

Definition at line 3419 of file elf32-cris.c.

Definition at line 3438 of file elf32-cris.c.

Definition at line 3425 of file elf32-cris.c.

Definition at line 3417 of file elf32-cris.c.

Definition at line 3415 of file elf32-cris.c.

Definition at line 3423 of file elf32-cris.c.

Definition at line 3422 of file elf32-cris.c.

#define elf32_bed   elf32_us_cris_bed

Definition at line 3465 of file elf32-cris.c.

#define ELF_ARCH   bfd_arch_cris

Definition at line 3392 of file elf32-cris.c.

Definition at line 3427 of file elf32-cris.c.

Definition at line 3409 of file elf32-cris.c.

#define elf_backend_can_refcount   1

Definition at line 3410 of file elf32-cris.c.

Definition at line 3405 of file elf32-cris.c.

Definition at line 3436 of file elf32-cris.c.

Definition at line 3413 of file elf32-cris.c.

Definition at line 3434 of file elf32-cris.c.

Definition at line 3432 of file elf32-cris.c.

Definition at line 3403 of file elf32-cris.c.

Definition at line 3404 of file elf32-cris.c.

#define elf_backend_got_header_size   12

Definition at line 3446 of file elf32-cris.c.

Definition at line 3406 of file elf32-cris.c.

Definition at line 3407 of file elf32-cris.c.

Definition at line 3440 of file elf32-cris.c.

Definition at line 3431 of file elf32-cris.c.

#define elf_backend_may_use_rel_p   0

Definition at line 3451 of file elf32-cris.c.

Definition at line 3452 of file elf32-cris.c.

Definition at line 3412 of file elf32-cris.c.

#define elf_backend_plt_readonly   1

Definition at line 3444 of file elf32-cris.c.

#define elf_backend_rela_normal   1

Definition at line 3453 of file elf32-cris.c.

Definition at line 3441 of file elf32-cris.c.

Definition at line 3402 of file elf32-cris.c.

Definition at line 3429 of file elf32-cris.c.

#define elf_backend_want_got_plt   1

Definition at line 3443 of file elf32-cris.c.

#define elf_backend_want_plt_sym   0

Definition at line 3445 of file elf32-cris.c.

#define elf_cris_hash_table (   p)    ((struct elf_cris_link_hash_table *) (p)->hash)

Definition at line 809 of file elf32-cris.c.

#define elf_cris_link_hash_traverse (   table,
  func,
  info 
)
Value:
(elf_link_hash_traverse                                        \
   (&(table)->root,                                            \
    (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
    (info)))

Definition at line 801 of file elf32-cris.c.

#define ELF_DYNAMIC_INTERPRETER   "/lib/ld.so.1"

Definition at line 623 of file elf32-cris.c.

Definition at line 3401 of file elf32-cris.c.

Definition at line 3400 of file elf32-cris.c.

#define ELF_MACHINE_CODE   EM_CRIS

Definition at line 3393 of file elf32-cris.c.

#define ELF_MAXPAGESIZE   0x2000

Definition at line 3394 of file elf32-cris.c.

#define elf_symbol_leading_char   0

Definition at line 3463 of file elf32-cris.c.

#define elf_symbol_leading_char   '_'

Definition at line 3463 of file elf32-cris.c.

#define PLT_ENTRY_SIZE   20

Definition at line 627 of file elf32-cris.c.

#define PLT_ENTRY_SIZE_V32   26

Definition at line 628 of file elf32-cris.c.

#define TARGET_LITTLE_NAME   "elf32-cris"

Definition at line 3462 of file elf32-cris.c.

#define TARGET_LITTLE_NAME   "elf32-us-cris"

Definition at line 3462 of file elf32-cris.c.

Definition at line 3461 of file elf32-cris.c.

Definition at line 3461 of file elf32-cris.c.


Function Documentation

static bfd_boolean cris_elf_check_relocs ( bfd abfd,
struct bfd_link_info info,
asection sec,
const Elf_Internal_Rela relocs 
) [static]

Definition at line 2462 of file elf32-cris.c.

{
  bfd *dynobj;
  Elf_Internal_Shdr *symtab_hdr;
  struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
  bfd_signed_vma *local_got_refcounts;
  const Elf_Internal_Rela *rel;
  const Elf_Internal_Rela *rel_end;
  asection *sgot;
  asection *srelgot;
  asection *sreloc;

  if (info->relocatable)
    return TRUE;

  dynobj = elf_hash_table (info)->dynobj;
  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (abfd);
  sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
  local_got_refcounts = elf_local_got_refcounts (abfd);

  sgot = NULL;
  srelgot = NULL;
  sreloc = NULL;

  if (!elf_bad_symtab (abfd))
    sym_hashes_end -= symtab_hdr->sh_info;

  rel_end = relocs + sec->reloc_count;
  for (rel = relocs; rel < rel_end; rel++)
    {
      struct elf_link_hash_entry *h;
      unsigned long r_symndx;
      enum elf_cris_reloc_type r_type;

      r_symndx = ELF32_R_SYM (rel->r_info);
      if (r_symndx < symtab_hdr->sh_info)
        h = NULL;
      else
       {
         h = sym_hashes[r_symndx - symtab_hdr->sh_info];
         while (h->root.type == bfd_link_hash_indirect
               || h->root.type == bfd_link_hash_warning)
           h = (struct elf_link_hash_entry *) h->root.u.i.link;
       }

      r_type = ELF32_R_TYPE (rel->r_info);

      /* Some relocs require linker-created sections; we need to hang them
        on the first input bfd we found that contained dynamic relocs.  */
      switch (r_type)
       {
       case R_CRIS_16_GOT:
       case R_CRIS_32_GOT:
       case R_CRIS_32_GOTREL:
       case R_CRIS_32_PLT_GOTREL:
       case R_CRIS_32_PLT_PCREL:
       case R_CRIS_16_GOTPLT:
       case R_CRIS_32_GOTPLT:
         if (dynobj == NULL)
           {
             elf_hash_table (info)->dynobj = dynobj = abfd;

             /* We could handle this if we can get a handle on the
               output bfd in elf_cris_adjust_dynamic_symbol.  Failing
               that, we must insist on dynobj being a specific mach.  */
             if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32)
              {
                (*_bfd_error_handler)
                  (_("%B, section %A:\n  v10/v32 compatible object %s"
                     " must not contain a PIC relocation"),
                   abfd, sec);
                return FALSE;
              }

             /* Create the .got section, so we can assume it's always
               present whenever there's a dynobj.  */
             if (!_bfd_elf_create_got_section (dynobj, info))
              return FALSE;
           }
         break;

       default:
         break;
       }

      /* Some relocs require a global offset table (but perhaps not a
        specific GOT entry).  */
      switch (r_type)
       {
         /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
            entry only for local symbols.  Unfortunately, we don't know
            until later on if there's a version script that forces the
            symbol local.  We must have the .rela.got section in place
            before we know if the symbol looks global now, so we need
            to treat the reloc just like for R_CRIS_16_GOT and
            R_CRIS_32_GOT.  */
       case R_CRIS_16_GOTPLT:
       case R_CRIS_32_GOTPLT:
       case R_CRIS_16_GOT:
       case R_CRIS_32_GOT:
         if (srelgot == NULL
             && (h != NULL || info->shared))
           {
             srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
             if (srelgot == NULL)
              {
                srelgot = bfd_make_section_with_flags (dynobj,
                                                  ".rela.got",
                                                  (SEC_ALLOC
                                                   | SEC_LOAD
                                                   | SEC_HAS_CONTENTS
                                                   | SEC_IN_MEMORY
                                                   | SEC_LINKER_CREATED
                                                   | SEC_READONLY));
                if (srelgot == NULL
                    || !bfd_set_section_alignment (dynobj, srelgot, 2))
                  return FALSE;
              }
           }
         /* Fall through.  */

       case R_CRIS_32_GOTREL:
       case R_CRIS_32_PLT_GOTREL:
         if (sgot == NULL)
           sgot = bfd_get_section_by_name (dynobj, ".got");

         if (local_got_refcounts == NULL)
           {
             bfd_size_type amt;

             /* We use index local_got_refcounts[-1] to count all
               GOT-relative relocations that do not have explicit
               GOT entries.  */
             amt = symtab_hdr->sh_info + 1;
             amt *= sizeof (bfd_signed_vma);
             local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
             if (local_got_refcounts == NULL)
              return FALSE;

             local_got_refcounts++;
             elf_local_got_refcounts (abfd) = local_got_refcounts;
           }
         break;

       default:
         break;
       }

      switch (r_type)
        {
       case R_CRIS_16_GOTPLT:
       case R_CRIS_32_GOTPLT:
         /* Mark that we need a GOT entry if the PLT entry (and its GOT
            entry) is eliminated.  We can only do this for a non-local
            symbol.  */
         if (h != NULL)
           {
             ((struct elf_cris_link_hash_entry *) h)->gotplt_refcount++;
             goto handle_gotplt_reloc;
           }
         /* If h is NULL then this is a local symbol, and we must make a
            GOT entry for it, so handle it like a GOT reloc.  */
         /* Fall through.  */

       case R_CRIS_16_GOT:
       case R_CRIS_32_GOT:
         /* This symbol requires a global offset table entry.  */
         if (h != NULL)
           {
             if (h->got.refcount == 0)
              {
                /* Make sure this symbol is output as a dynamic symbol.  */
                if (h->dynindx == -1)
                  {
                    if (!bfd_elf_link_record_dynamic_symbol (info, h))
                     return FALSE;
                  }

                /* Allocate space in the .got section.  */
                sgot->size += 4;
                /* Allocate relocation space.  */
                srelgot->size += sizeof (Elf32_External_Rela);
              }
             h->got.refcount++;
           }
         else
           {
             /* This is a global offset table entry for a local symbol.  */
             if (local_got_refcounts[r_symndx] == 0)
              {
                sgot->size += 4;
                if (info->shared)
                  {
                    /* If we are generating a shared object, we need to
                      output a R_CRIS_RELATIVE reloc so that the dynamic
                      linker can adjust this GOT entry.  */
                    srelgot->size += sizeof (Elf32_External_Rela);
                  }
              }
             local_got_refcounts[r_symndx]++;
           }
         break;

       case R_CRIS_32_GOTREL:
         /* This reference requires a global offset table.
            FIXME: The actual refcount isn't used currently; the .got
            section can't be removed if there were any references in the
            input.  */
         local_got_refcounts[-1]++;
         break;

       handle_gotplt_reloc:

       case R_CRIS_32_PLT_GOTREL:
         /* This reference requires a global offset table.  */
         local_got_refcounts[-1]++;
         /* Fall through.  */

       case R_CRIS_32_PLT_PCREL:
         /* This symbol requires a procedure linkage table entry.  We
            actually build the entry in adjust_dynamic_symbol,
             because this might be a case of linking PIC code which is
             never referenced by a dynamic object, in which case we
             don't need to generate a procedure linkage table entry
             after all.  */

         /* Beware: if we'd check for visibility of the symbol here
            (and not marking the need for a PLT when non-visible), we'd
            get into trouble with keeping handling consistent with
            regards to relocs found before definition and GOTPLT
            handling.  Eliminable PLT entries will be dealt with later
            anyway.  */
         if (h == NULL)
           continue;

         h->needs_plt = 1;
         h->plt.refcount++;
         break;

       case R_CRIS_8:
       case R_CRIS_16:
       case R_CRIS_32:
         /* Let's help debug shared library creation.  Any of these
            relocs can be used in shared libs, but pages containing them
            cannot be shared.  Don't warn for sections we don't care
            about, such as debug sections or non-constant sections.  We
            can't help tables of (global) function pointers, for example,
            though they must be emitted in a data section to avoid having
            impure text sections.  */
         if (info->shared
             && (sec->flags & SEC_ALLOC) != 0
             && (sec->flags & SEC_READONLY) != 0)
           {
             /* FIXME: How do we make this optionally a warning only?  */
             (*_bfd_error_handler)
              (_("%B, section %A:\n  relocation %s should not"
                 " be used in a shared object; recompile with -fPIC"),
               abfd,
               sec,
               cris_elf_howto_table[r_type].name);
           }
         /* Fall through.  */

       case R_CRIS_8_PCREL:
       case R_CRIS_16_PCREL:
       case R_CRIS_32_PCREL:
         if (h != NULL)
           {
             h->non_got_ref = 1;

             /* Make sure a plt entry is created for this symbol if it
               turns out to be a function defined by a dynamic object.  */
             if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
              h->plt.refcount++;
           }

         /* If we are creating a shared library and this is not a local
            symbol, we need to copy the reloc into the shared library.
            However when linking with -Bsymbolic and this is a global
            symbol which is defined in an object we are including in the
            link (i.e., DEF_REGULAR is set), then we can resolve the
            reloc directly.  At this point we have not seen all the input
            files, so it is possible that DEF_REGULAR is not set now but
            will be set later (it is never cleared).  In case of a weak
            definition, DEF_REGULAR may be cleared later by a strong
            definition in a shared library.  We account for that
            possibility below by storing information in the relocs_copied
            field of the hash table entry.  A similar situation occurs
            when creating shared libraries and symbol visibility changes
            render the symbol local.  */

         /* No need to do anything if we're not creating a shared object.  */
         if (! info->shared)
           break;

         /* We don't need to handle relocs into sections not going into
            the "real" output.  */
         if ((sec->flags & SEC_ALLOC) == 0)
           break;

         /* We can only eliminate PC-relative relocs.  */
         if (r_type == R_CRIS_8_PCREL
             || r_type == R_CRIS_16_PCREL
             || r_type == R_CRIS_32_PCREL)
           {
             /* If the symbol is local, then we can eliminate the reloc.  */
             if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
              break;

             /* If this is with -Bsymbolic and the symbol isn't weak, and
               is defined by an ordinary object (the ones we include in
               this shared library) then we can also eliminate the
               reloc.  See comment above for more eliminable cases which
               we can't identify at this time.  */
             if (info->symbolic
                && h->root.type != bfd_link_hash_defweak
                && h->def_regular)
              break;

             if ((sec->flags & SEC_READONLY) != 0)
              {
                /* FIXME: How do we make this optionally a warning only?  */
                (*_bfd_error_handler)
                  (_("%B, section %A:\n  relocation %s should not be used"
                     " in a shared object; recompile with -fPIC"),
                   abfd,
                   sec,
                   cris_elf_howto_table[r_type].name);
              }
           }

         /* We create a reloc section in dynobj and make room for this
            reloc.  */
         if (sreloc == NULL)
           {
             const char *name;

             name = (bfd_elf_string_from_elf_section
                    (abfd,
                     elf_elfheader (abfd)->e_shstrndx,
                     elf_section_data (sec)->rel_hdr.sh_name));
             if (name == NULL)
              return FALSE;

             BFD_ASSERT (CONST_STRNEQ (name, ".rela")
                       && strcmp (bfd_get_section_name (abfd, sec),
                                 name + 5) == 0);

             sreloc = bfd_get_section_by_name (dynobj, name);
             if (sreloc == NULL)
              {
                sreloc = bfd_make_section_with_flags (dynobj, name,
                                                 (SEC_ALLOC
                                                  | SEC_LOAD
                                                  | SEC_HAS_CONTENTS
                                                  | SEC_IN_MEMORY
                                                  | SEC_LINKER_CREATED
                                                  | SEC_READONLY));
                if (sreloc == NULL
                    || !bfd_set_section_alignment (dynobj, sreloc, 2))
                  return FALSE;
              }
             if (sec->flags & SEC_READONLY)
              info->flags |= DF_TEXTREL;
           }

         sreloc->size += sizeof (Elf32_External_Rela);

         /* If we are linking with -Bsymbolic, we count the number of PC
            relative relocations we have entered for this symbol, so that
            we can discard them again if the symbol is later defined by a
            regular object.  We know that h is really a pointer to an
            elf_cris_link_hash_entry.  */
         if ((r_type == R_CRIS_8_PCREL
              || r_type == R_CRIS_16_PCREL
              || r_type == R_CRIS_32_PCREL)
             && info->symbolic)
           {
             struct elf_cris_link_hash_entry *eh;
             struct elf_cris_pcrel_relocs_copied *p;

             eh = (struct elf_cris_link_hash_entry *) h;

             for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
              if (p->section == sreloc)
                break;

             if (p == NULL)
              {
                p = ((struct elf_cris_pcrel_relocs_copied *)
                     bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
                if (p == NULL)
                  return FALSE;
                p->next = eh->pcrel_relocs_copied;
                eh->pcrel_relocs_copied = p;
                p->section = sreloc;
                p->count = 0;
              }

             ++p->count;
           }
         break;

        /* This relocation describes the C++ object vtable hierarchy.
           Reconstruct it for later use during GC.  */
        case R_CRIS_GNU_VTINHERIT:
          if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
            return FALSE;
          break;

        /* This relocation describes which C++ vtable entries are actually
           used.  Record for later use during GC.  */
        case R_CRIS_GNU_VTENTRY:
          if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
            return FALSE;
          break;

       default:
         /* Other relocs do not appear here.  */
         bfd_set_error (bfd_error_bad_value);
         return FALSE;
        }
    }

  return TRUE;
}

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static bfd_boolean cris_elf_copy_private_bfd_data ( bfd ibfd,
bfd obfd 
) [static]

Definition at line 3355 of file elf32-cris.c.

{
  /* Call the base function.  */
  if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd))
    return FALSE;

  /* If output is big-endian for some obscure reason, stop here.  */
  if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
    return FALSE;

  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
    return TRUE;

  /* Do what we really came here for.  */
  return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd));
}

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static void cris_elf_final_write_processing ( bfd abfd,
linker   
) [static]

Definition at line 3181 of file elf32-cris.c.

{
  unsigned long e_flags = elf_elfheader (abfd)->e_flags;

  e_flags &= ~EF_CRIS_UNDERSCORE;
  if (bfd_get_symbol_leading_char (abfd) == '_')
    e_flags |= EF_CRIS_UNDERSCORE;

  switch (bfd_get_mach (abfd))
    {
    case bfd_mach_cris_v0_v10:
      e_flags |= EF_CRIS_VARIANT_ANY_V0_V10;
      break;

    case bfd_mach_cris_v10_v32:
      e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32;
      break;

    case bfd_mach_cris_v32:
      e_flags |= EF_CRIS_VARIANT_V32;
      break;

    default:
      _bfd_abort (__FILE__, __LINE__,
                _("Unexpected machine number"));
    }

  elf_elfheader (abfd)->e_flags = e_flags;
}

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static asection* cris_elf_gc_mark_hook ( asection sec,
struct bfd_link_info info,
Elf_Internal_Rela rel,
struct elf_link_hash_entry h,
Elf_Internal_Sym *  sym 
) [static]

Definition at line 1955 of file elf32-cris.c.

{
  if (h != NULL)
    switch (ELF32_R_TYPE (rel->r_info))
      {
      case R_CRIS_GNU_VTINHERIT:
      case R_CRIS_GNU_VTENTRY:
       return NULL;
      }

  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}

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static bfd_boolean cris_elf_gc_sweep_hook ( bfd abfd,
struct bfd_link_info info,
asection sec,
const Elf_Internal_Rela relocs 
) [static]

Definition at line 1975 of file elf32-cris.c.

{
  Elf_Internal_Shdr *symtab_hdr;
  struct elf_link_hash_entry **sym_hashes;
  bfd_signed_vma *local_got_refcounts;
  const Elf_Internal_Rela *rel, *relend;
  bfd *dynobj;
  asection *sgot;
  asection *srelgot;

  dynobj = elf_hash_table (info)->dynobj;
  if (dynobj == NULL)
    return TRUE;

  symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (abfd);
  local_got_refcounts = elf_local_got_refcounts (abfd);

  sgot = bfd_get_section_by_name (dynobj, ".got");
  srelgot = bfd_get_section_by_name (dynobj, ".rela.got");

  relend = relocs + sec->reloc_count;
  for (rel = relocs; rel < relend; rel++)
    {
      unsigned long r_symndx;
      struct elf_link_hash_entry *h = NULL;

      r_symndx = ELF32_R_SYM (rel->r_info);
      if (r_symndx >= symtab_hdr->sh_info)
       {
         h = sym_hashes[r_symndx - symtab_hdr->sh_info];
         while (h->root.type == bfd_link_hash_indirect
               || h->root.type == bfd_link_hash_warning)
           h = (struct elf_link_hash_entry *) h->root.u.i.link;
       }

      switch (ELF32_R_TYPE (rel->r_info))
       {
       case R_CRIS_16_GOT:
       case R_CRIS_32_GOT:
         if (h != NULL)
           {
             if (h->got.refcount > 0)
              {
                --h->got.refcount;
                if (h->got.refcount == 0)
                  {
                    /* We don't need the .got entry any more.  */
                    sgot->size -= 4;
                    srelgot->size -= sizeof (Elf32_External_Rela);
                  }
              }
             break;
           }

       local_got_reloc:
         if (local_got_refcounts != NULL)
           {
             if (local_got_refcounts[r_symndx] > 0)
              {
                --local_got_refcounts[r_symndx];
                if (local_got_refcounts[r_symndx] == 0)
                  {
                    /* We don't need the .got entry any more.  */
                    sgot->size -= 4;
                    if (info->shared)
                     srelgot->size -= sizeof (Elf32_External_Rela);
                  }
              }
           }
         break;

       case R_CRIS_16_GOTPLT:
       case R_CRIS_32_GOTPLT:
         /* For local symbols, treat these like GOT relocs.  */
         if (h == NULL)
           goto local_got_reloc;
         /* Fall through.  */

       case R_CRIS_32_PLT_GOTREL:
         /* FIXME: We don't garbage-collect away the .got section.  */
         if (local_got_refcounts != NULL)
           local_got_refcounts[-1]--;
         /* Fall through.  */

       case R_CRIS_8_PCREL:
       case R_CRIS_16_PCREL:
       case R_CRIS_32_PCREL:
       case R_CRIS_32_PLT_PCREL:
         if (h != NULL)
           {
             if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
                && h->plt.refcount > 0)
              --h->plt.refcount;
           }
         break;

       default:
         break;
       }
    }

  return TRUE;
}

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static bfd_boolean cris_elf_grok_prstatus ( bfd abfd,
Elf_Internal_Note note 
) [static]

Definition at line 524 of file elf32-cris.c.

{
  int offset;
  size_t size;

  if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
    switch (note->descsz)
      {
      default:
       return FALSE;

      case 202:             /* Linux/CRISv32 */
       /* pr_cursig */
       elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);

       /* pr_pid */
       elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);

       /* pr_reg */
       offset = 70;
       size = 128;

       break;
      }
  else
    switch (note->descsz)
      {
      default:
       return FALSE;

      case 214:             /* Linux/CRIS */
       /* pr_cursig */
       elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);

       /* pr_pid */
       elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);

       /* pr_reg */
       offset = 70;
       size = 140;

       break;
      }

  /* Make a ".reg/999" section.  */
  return _bfd_elfcore_make_pseudosection (abfd, ".reg",
                                     size, note->descpos + offset);
}

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static bfd_boolean cris_elf_grok_psinfo ( bfd abfd,
Elf_Internal_Note note 
) [static]

Definition at line 576 of file elf32-cris.c.

{
  if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
    switch (note->descsz)
      {
      default:
       return FALSE;

      case 124:             /* Linux/CRISv32 elf_prpsinfo */
       elf_tdata (abfd)->core_program
         = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
       elf_tdata (abfd)->core_command
         = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
      }
  else
    switch (note->descsz)
      {
      default:
       return FALSE;

      case 124:             /* Linux/CRIS elf_prpsinfo */
       elf_tdata (abfd)->core_program
         = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
       elf_tdata (abfd)->core_command
         = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
      }

  /* Note that for some reason, a spurious space is tacked
     onto the end of the args in some (at least one anyway)
     implementations, so strip it off if it exists.  */

  {
    char *command = elf_tdata (abfd)->core_command;
    int n = strlen (command);

    if (0 < n && command[n - 1] == ' ')
      command[n - 1] = '\0';
  }

  return TRUE;
}

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static bfd_boolean cris_elf_merge_private_bfd_data ( bfd ibfd,
bfd obfd 
) [static]

Definition at line 3276 of file elf32-cris.c.

{
  int imach, omach;

  if (! _bfd_generic_verify_endian_match (ibfd, obfd))
    return FALSE;

  if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
      || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
    return TRUE;

  imach = bfd_get_mach (ibfd);

  if (! elf_flags_init (obfd))
    {
      /* This happens when ld starts out with a 'blank' output file.  */
      elf_flags_init (obfd) = TRUE;

      /* We ignore the linker-set mach, and instead set it according to
        the first input file.  This would also happen if we could
        somehow filter out the OUTPUT_ARCH () setting from elf.sc.
        This allows us to keep the same linker config across
        cris(v0..v10) and crisv32.  The drawback is that we can't force
        the output type, which might be a sane thing to do for a
        v10+v32 compatibility object.  */
      if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
       return FALSE;
    }

  if (bfd_get_symbol_leading_char (ibfd)
      != bfd_get_symbol_leading_char (obfd))
    {
      (*_bfd_error_handler)
       (bfd_get_symbol_leading_char (ibfd) == '_'
        ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
        : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
        ibfd);
      bfd_set_error (bfd_error_bad_value);
      return FALSE;
    }

  omach = bfd_get_mach (obfd);

  if (imach != omach)
    {
      /* We can get an incompatible combination only if either is
        bfd_mach_cris_v32, and the other one isn't compatible.  */
      if ((imach == bfd_mach_cris_v32
          && omach != bfd_mach_cris_v10_v32)
         || (omach == bfd_mach_cris_v32
             && imach != bfd_mach_cris_v10_v32))
       {
         (*_bfd_error_handler)
           ((imach == bfd_mach_cris_v32)
            ? _("%B contains CRIS v32 code, incompatible"
               " with previous objects")
            : _("%B contains non-CRIS-v32 code, incompatible"
               " with previous objects"),
            ibfd);
         bfd_set_error (bfd_error_bad_value);
         return FALSE;
       }

      /* We don't have to check the case where the input is compatible
        with v10 and v32, because the output is already known to be set
        to the other (compatible) mach.  */
      if (omach == bfd_mach_cris_v10_v32
         && ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
       return FALSE;
    }

  return TRUE;
}

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static bfd_boolean cris_elf_object_p ( bfd abfd) [static]

Definition at line 3165 of file elf32-cris.c.

{
  if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags))
    return FALSE;

  if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
    return (bfd_get_symbol_leading_char (abfd) == '_');
  else
    return (bfd_get_symbol_leading_char (abfd) == 0);
}

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bfd_reloc_status_type cris_elf_pcrel_reloc ( abfd  ,
arelent reloc_entry,
asymbol symbol,
data  ,
asection input_section,
bfd output_bfd,
error_message   
)

Definition at line 491 of file elf32-cris.c.

{
  /* By default (using only bfd_elf_generic_reloc when linking to
     non-ELF formats) PC-relative relocs are relative to the beginning
     of the reloc.  CRIS PC-relative relocs are relative to the position
     *after* the reloc because that's what pre-CRISv32 PC points to
     after reading an insn field with that reloc.  (For CRISv32, PC is
     actually relative to the start of the insn, but we keep the old
     definition.)  Still, we use as much generic machinery as we can.

     Only adjust when doing a final link.  */
  if (output_bfd == (bfd *) NULL)
    reloc_entry->addend -= 1 << reloc_entry->howto->size;

  return
    bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
                        input_section, output_bfd, error_message);
}

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static bfd_boolean cris_elf_print_private_bfd_data ( bfd abfd,
PTR  ptr 
) [static]

Definition at line 3248 of file elf32-cris.c.

{
  FILE *file = (FILE *) ptr;

  BFD_ASSERT (abfd != NULL && ptr != NULL);

  _bfd_elf_print_private_bfd_data (abfd, ptr);

  fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);

  if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
    fprintf (file, _(" [symbols have a _ prefix]"));
  if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
      == EF_CRIS_VARIANT_COMMON_V10_V32)
    fprintf (file, _(" [v10 and v32]"));
  if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
      == EF_CRIS_VARIANT_V32)
    fprintf (file, _(" [v32]"));

  fputc ('\n', file);
  return TRUE;
}

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static bfd_boolean cris_elf_relocate_section ( output_bfd  ,
struct bfd_link_info info,
bfd input_bfd,
asection input_section,
bfd_byte contents,
Elf_Internal_Rela relocs,
Elf_Internal_Sym *  local_syms,
asection **  local_sections 
) [static]

Definition at line 924 of file elf32-cris.c.

{
  bfd *dynobj;
  Elf_Internal_Shdr *symtab_hdr;
  struct elf_link_hash_entry **sym_hashes;
  bfd_vma *local_got_offsets;
  asection *sgot;
  asection *splt;
  asection *sreloc;
  Elf_Internal_Rela *rel;
  Elf_Internal_Rela *relend;

  dynobj = elf_hash_table (info)->dynobj;
  local_got_offsets = elf_local_got_offsets (input_bfd);
  symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
  sym_hashes = elf_sym_hashes (input_bfd);
  relend     = relocs + input_section->reloc_count;

  sgot = NULL;
  splt = NULL;
  sreloc = NULL;

  if (dynobj != NULL)
    {
      splt = bfd_get_section_by_name (dynobj, ".plt");
      sgot = bfd_get_section_by_name (dynobj, ".got");
    }

  for (rel = relocs; rel < relend; rel ++)
    {
      reloc_howto_type *howto;
      unsigned long r_symndx;
      Elf_Internal_Sym *sym;
      asection *sec;
      struct elf_link_hash_entry *h;
      bfd_vma relocation;
      bfd_reloc_status_type r;
      const char *symname = NULL;
      int r_type;

      r_type = ELF32_R_TYPE (rel->r_info);

      if (   r_type == R_CRIS_GNU_VTINHERIT
         || r_type == R_CRIS_GNU_VTENTRY)
       continue;

      r_symndx = ELF32_R_SYM (rel->r_info);
      howto  = cris_elf_howto_table + r_type;
      h      = NULL;
      sym    = NULL;
      sec    = NULL;

      if (r_symndx < symtab_hdr->sh_info)
       {
         sym = local_syms + r_symndx;
         sec = local_sections [r_symndx];
         relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);

         symname = (bfd_elf_string_from_elf_section
                   (input_bfd, symtab_hdr->sh_link, sym->st_name));
         if (symname == NULL)
           symname = bfd_section_name (input_bfd, sec);
       }
      else
       {
         bfd_boolean warned;
         bfd_boolean unresolved_reloc;

         RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
                               r_symndx, symtab_hdr, sym_hashes,
                               h, sec, relocation,
                               unresolved_reloc, warned);

         if (unresolved_reloc
             /* Perhaps we should detect the cases that
               sec->output_section is expected to be NULL like i386 and
               m68k, but apparently (and according to elfxx-ia64.c) all
               valid cases are where the symbol is defined in a shared
               object which we link dynamically against.  This includes
               PLT relocs for which we've created a PLT entry and other
               relocs for which we're prepared to create dynamic
               relocations.

               For now, new situations cause us to just err when
               sec->output_offset is NULL but the object with the symbol
               is *not* dynamically linked against.  Thus this will
               automatically remind us so we can see if there are other
               valid cases we need to revisit.  */
             && (sec->owner->flags & DYNAMIC) != 0)
           relocation = 0;

         else if (h->root.type == bfd_link_hash_defined
                 || h->root.type == bfd_link_hash_defweak)
           {
             /* Here follow the cases where the relocation value must
               be zero (or when further handling is simplified when
               zero).  I can't claim to understand the various
               conditions and they weren't described in the files
               where I copied them from (elf32-m68k.c and
               elf32-i386.c), but let's mention examples of where
               they happen.  FIXME: Perhaps define and use a
               dynamic_symbol_p function like ia64.

               - When creating a shared library, we can have an
               ordinary relocation for a symbol defined in a shared
               library (perhaps the one we create).  We then make
               the relocation value zero, as the value seen now will
               be added into the relocation addend in this shared
               library, but must be handled only at dynamic-link
               time.  FIXME: Not sure this example covers the
               h->elf_link_hash_flags test, though it's there in
               other targets.  */
             if (info->shared
                && ((! info->symbolic && h->dynindx != -1)
                    || !h->def_regular)
                && (input_section->flags & SEC_ALLOC) != 0
                && (r_type == R_CRIS_8
                    || r_type == R_CRIS_16
                    || r_type == R_CRIS_32
                    || r_type == R_CRIS_8_PCREL
                    || r_type == R_CRIS_16_PCREL
                    || r_type == R_CRIS_32_PCREL))
              relocation = 0;
             else if (!info->relocatable && unresolved_reloc)
              {
                _bfd_error_handler
                  (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
                   input_bfd,
                   input_section,
                   cris_elf_howto_table[r_type].name,
                   symname);
                bfd_set_error (bfd_error_bad_value);
                return FALSE;
              }
           }
       }

      if (sec != NULL && elf_discarded_section (sec))
       {
         /* For relocs against symbols from removed linkonce sections,
            or sections discarded by a linker script, we just want the
            section contents zeroed.  Avoid any special processing.  */
         _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
         rel->r_info = 0;
         rel->r_addend = 0;
         continue;
       }

      if (info->relocatable)
       continue;

      switch (r_type)
       {
       case R_CRIS_16_GOTPLT:
       case R_CRIS_32_GOTPLT:
         /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
            but we require a PLT, and the PLT handling will take care of
            filling in the PLT-specific GOT entry.  For the GOT offset,
            calculate it as we do when filling it in for the .got.plt
            section.  If we don't have a PLT, punt to GOT handling.  */
         if (h != NULL
             && ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0)
           {
             asection *sgotplt
              = bfd_get_section_by_name (dynobj, ".got.plt");
             bfd_vma got_offset;

             BFD_ASSERT (h->dynindx != -1);
             BFD_ASSERT (sgotplt != NULL);

             got_offset
              = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;

             relocation = got_offset;
             break;
           }

         /* We didn't make a PLT entry for this symbol.  Maybe everything is
            folded into the GOT.  Other than folding, this happens when
            statically linking PIC code, or when using -Bsymbolic.  Check
            that we instead have a GOT entry as done for us by
            elf_cris_adjust_dynamic_symbol, and drop through into the
            ordinary GOT cases.  This must not happen for the
            executable, because any reference it does to a function
            that is satisfied by a DSO must generate a PLT.  We assume
            these call-specific relocs don't address non-functions.  */
         if (h != NULL
             && (h->got.offset == (bfd_vma) -1
                || (!info->shared
                    && !(h->def_regular
                        || (!h->def_dynamic
                            && h->root.type == bfd_link_hash_undefweak)))))
           {
             (*_bfd_error_handler)
              ((h->got.offset == (bfd_vma) -1)
               ? _("%B, section %A: No PLT nor GOT for relocation %s"
                   " against symbol `%s'")
               : _("%B, section %A: No PLT for relocation %s"
                   " against symbol `%s'"),
               input_bfd,
               input_section,
               cris_elf_howto_table[r_type].name,
               (symname != NULL && symname[0] != '\0'
                ? symname : _("[whose name is lost]")));

             /* FIXME: Perhaps blaming input is not the right thing to
               do; this is probably an internal error.  But it is true
               that we didn't like that particular input.  */
             bfd_set_error (bfd_error_bad_value);
             return FALSE;
           }
         /* Fall through.  */

         /* The size of the actual relocation is not used here; we only
            fill in the GOT table here.  */
       case R_CRIS_16_GOT:
       case R_CRIS_32_GOT:
         {
           bfd_vma off;

           /* Note that despite using RELA relocations, the .got contents
              is always filled in with the link-relative relocation
              value; the addend.  */

           if (h != NULL)
             {
              off = h->got.offset;
              BFD_ASSERT (off != (bfd_vma) -1);

              if (!elf_hash_table (info)->dynamic_sections_created
                  || (! info->shared
                     && (h->def_regular
                         || h->type == STT_FUNC
                         || h->needs_plt))
                  || (info->shared
                     && (info->symbolic || h->dynindx == -1)
                     && h->def_regular))
                {
                  /* This wasn't checked above for ! info->shared, but
                     must hold there if we get here; the symbol must
                     be defined in the regular program or be undefweak
                     or be a function or otherwise need a PLT.  */
                  BFD_ASSERT (!elf_hash_table (info)->dynamic_sections_created
                            || info->shared
                            || h->def_regular
                            || h->type == STT_FUNC
                            || h->needs_plt
                            || h->root.type == bfd_link_hash_undefweak);

                  /* This is actually a static link, or it is a
                     -Bsymbolic link and the symbol is defined locally,
                     or is undefweak, or the symbol was forced to be
                     local because of a version file, or we're not
                     creating a dynamic object.  We must initialize this
                     entry in the global offset table.  Since the offset
                     must always be a multiple of 4, we use the least
                     significant bit to record whether we have
                     initialized it already.

                     If this GOT entry should be runtime-initialized, we
                     will create a .rela.got relocation entry to
                     initialize the value.  This is done in the
                     finish_dynamic_symbol routine.  */
                  if ((off & 1) != 0)
                    off &= ~1;
                  else
                    {
                     bfd_put_32 (output_bfd, relocation,
                                sgot->contents + off);
                     h->got.offset |= 1;
                    }
                }
             }
           else
             {
              BFD_ASSERT (local_got_offsets != NULL
                         && local_got_offsets[r_symndx] != (bfd_vma) -1);

              off = local_got_offsets[r_symndx];

              /* The offset must always be a multiple of 4.  We use
                 the least significant bit to record whether we have
                 already generated the necessary reloc.  */
              if ((off & 1) != 0)
                off &= ~1;
              else
                {
                  bfd_put_32 (output_bfd, relocation, sgot->contents + off);

                  if (info->shared)
                    {
                     asection *s;
                     Elf_Internal_Rela outrel;
                     bfd_byte *loc;

                     s = bfd_get_section_by_name (dynobj, ".rela.got");
                     BFD_ASSERT (s != NULL);

                     outrel.r_offset = (sgot->output_section->vma
                                      + sgot->output_offset
                                      + off);
                     outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
                     outrel.r_addend = relocation;
                     loc = s->contents;
                     loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
                     bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
                    }

                  local_got_offsets[r_symndx] |= 1;
                }
             }

           relocation = sgot->output_offset + off;
           if (rel->r_addend != 0)
             {
              /* We can't do anything for a relocation which is against
                 a symbol *plus offset*.  GOT holds relocations for
                 symbols.  Make this an error; the compiler isn't
                 allowed to pass us these kinds of things.  */
              if (h == NULL)
                (*_bfd_error_handler)
                  (_("%B, section %A: relocation %s with non-zero addend %d"
                     " against local symbol"),
                   input_bfd,
                   input_section,
                   cris_elf_howto_table[r_type].name,
                   rel->r_addend);
              else
                (*_bfd_error_handler)
                  (_("%B, section %A: relocation %s with non-zero addend %d"
                     " against symbol `%s'"),
                   input_bfd,
                   input_section,
                   cris_elf_howto_table[r_type].name,
                   rel->r_addend,
                   symname[0] != '\0' ? symname : _("[whose name is lost]"));

              bfd_set_error (bfd_error_bad_value);
              return FALSE;
             }
         }
         break;

       case R_CRIS_32_GOTREL:
         /* This relocation must only be performed against local symbols.
            It's also ok when we link a program and the symbol is either
            defined in an ordinary (non-DSO) object or is undefined weak.  */
         if (h != NULL
             && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
             && !(!info->shared
                 && (h->def_regular
                     || (!h->def_dynamic
                        && h->root.type == bfd_link_hash_undefweak))))
           {
             (*_bfd_error_handler)
              (_("%B, section %A: relocation %s is"
                 " not allowed for global symbol: `%s'"),
               input_bfd,
               input_section,
               cris_elf_howto_table[r_type].name,
               symname);
             bfd_set_error (bfd_error_bad_value);
             return FALSE;
           }

         /* This can happen if we get a link error with the input ELF
            variant mismatching the output variant.  Emit an error so
            it's noticed if it happens elsewhere.  */
         if (sgot == NULL)
           {
             (*_bfd_error_handler)
              (_("%B, section %A: relocation %s with no GOT created"),
               input_bfd,
               input_section,
               cris_elf_howto_table[r_type].name);
             bfd_set_error (bfd_error_bad_value);
             return FALSE;
           }

         /* This relocation is like a PC-relative one, except the
            reference point is the location of GOT.  Note that
            sgot->output_offset is not involved in this calculation.  We
            always want the start of entire .got section, not the
            position after the reserved header.  */
         relocation -= sgot->output_section->vma;
         break;

       case R_CRIS_32_PLT_PCREL:
         /* Relocation is to the entry for this symbol in the
            procedure linkage table.  */

         /* Resolve a PLT_PCREL reloc against a local symbol directly,
            without using the procedure linkage table.  */
         if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
           break;

         if (h->plt.offset == (bfd_vma) -1
             || splt == NULL)
           {
             /* We didn't make a PLT entry for this symbol.  This
               happens when statically linking PIC code, or when
               using -Bsymbolic.  */
             break;
           }

         relocation = (splt->output_section->vma
                     + splt->output_offset
                     + h->plt.offset);
         break;

       case R_CRIS_32_PLT_GOTREL:
         /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
            start of the .got section.  See also comment at
            R_CRIS_32_GOT.  */
         relocation -= sgot->output_section->vma;

         /* Resolve a PLT_GOTREL reloc against a local symbol directly,
            without using the procedure linkage table.  */
         if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
           break;

         if (h->plt.offset == (bfd_vma) -1
             || splt == NULL)
           {
             /* We didn't make a PLT entry for this symbol.  This
               happens when statically linking PIC code, or when
               using -Bsymbolic.  */
             break;
           }

         relocation = (splt->output_section->vma
                     + splt->output_offset
                     + h->plt.offset
                     - sgot->output_section->vma);
         break;

       case R_CRIS_8_PCREL:
       case R_CRIS_16_PCREL:
       case R_CRIS_32_PCREL:
         /* If the symbol was local, we need no shlib-specific handling.  */
         if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
           break;

         /* Fall through.  */
       case R_CRIS_8:
       case R_CRIS_16:
       case R_CRIS_32:
         if (info->shared
             && r_symndx != 0
             && (input_section->flags & SEC_ALLOC) != 0
             && ((r_type != R_CRIS_8_PCREL
                 && r_type != R_CRIS_16_PCREL
                 && r_type != R_CRIS_32_PCREL)
                || (!info->symbolic
                    || !h->def_regular)))
           {
             Elf_Internal_Rela outrel;
             bfd_byte *loc;
             bfd_boolean skip, relocate;

             /* When generating a shared object, these relocations
               are copied into the output file to be resolved at run
               time.  */

             if (sreloc == NULL)
              {
                const char *name;

                name = (bfd_elf_string_from_elf_section
                       (input_bfd,
                        elf_elfheader (input_bfd)->e_shstrndx,
                        elf_section_data (input_section)->rel_hdr.sh_name));
                if (name == NULL)
                  return FALSE;

                BFD_ASSERT (CONST_STRNEQ (name, ".rela")
                           && strcmp (bfd_get_section_name (input_bfd,
                                                        input_section),
                                    name + 5) == 0);

                sreloc = bfd_get_section_by_name (dynobj, name);

                /* That section should have been created in
                   cris_elf_check_relocs, but that function will not be
                   called for objects which fail in
                   cris_elf_merge_private_bfd_data.  */
                if (sreloc == NULL)
                  {
                    (*_bfd_error_handler)
                     (_("%B: Internal inconsistency; no relocation section %s"),
                      input_bfd,
                      name);

                    bfd_set_error (bfd_error_bad_value);
                    return FALSE;
                  }
              }

             skip = FALSE;
             relocate = FALSE;

             outrel.r_offset =
              _bfd_elf_section_offset (output_bfd, info, input_section,
                                    rel->r_offset);
             if (outrel.r_offset == (bfd_vma) -1)
              skip = TRUE;
             else if (outrel.r_offset == (bfd_vma) -2)
              skip = TRUE, relocate = TRUE;
             outrel.r_offset += (input_section->output_section->vma
                              + input_section->output_offset);

             if (skip)
              memset (&outrel, 0, sizeof outrel);
             /* h->dynindx may be -1 if the symbol was marked to
               become local.  */
             else if (h != NULL
                     && ((! info->symbolic && h->dynindx != -1)
                        || !h->def_regular))
              {
                BFD_ASSERT (h->dynindx != -1);
                outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
                outrel.r_addend = relocation + rel->r_addend;
              }
             else
              {
                outrel.r_addend = relocation + rel->r_addend;

                if (r_type == R_CRIS_32)
                  {
                    relocate = TRUE;
                    outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
                  }
                else
                  {
                    long indx;

                    if (bfd_is_abs_section (sec))
                     indx = 0;
                    else if (sec == NULL || sec->owner == NULL)
                     {
                       bfd_set_error (bfd_error_bad_value);
                       return FALSE;
                     }
                    else
                     {
                       asection *osec;

                       /* We are turning this relocation into one
                          against a section symbol.  It would be
                          proper to subtract the symbol's value,
                          osec->vma, from the emitted reloc addend,
                          but ld.so expects buggy relocs.  */
                       osec = sec->output_section;
                       indx = elf_section_data (osec)->dynindx;
                       if (indx == 0)
                         {
                           struct elf_cris_link_hash_table *htab;
                           htab = elf_cris_hash_table (info);
                           osec = htab->root.text_index_section;
                           indx = elf_section_data (osec)->dynindx;
                         }
                       BFD_ASSERT (indx != 0);
                     }

                    outrel.r_info = ELF32_R_INFO (indx, r_type);
                  }
              }

             loc = sreloc->contents;
             loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
             bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);

             /* This reloc will be computed at runtime, so there's no
                 need to do anything now, except for R_CRIS_32 relocations
                 that have been turned into R_CRIS_RELATIVE.  */
             if (!relocate)
              continue;
           }

         break;
       }

      r = cris_final_link_relocate (howto, input_bfd, input_section,
                                 contents, rel, relocation);

      if (r != bfd_reloc_ok)
       {
         const char * msg = (const char *) NULL;

         switch (r)
           {
           case bfd_reloc_overflow:
             r = info->callbacks->reloc_overflow
              (info, (h ? &h->root : NULL), symname, howto->name,
               (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
             break;

           case bfd_reloc_undefined:
             r = info->callbacks->undefined_symbol
              (info, symname, input_bfd, input_section, rel->r_offset,
               TRUE);
             break;

           case bfd_reloc_outofrange:
             msg = _("internal error: out of range error");
             break;

           case bfd_reloc_notsupported:
             msg = _("internal error: unsupported relocation error");
             break;

           case bfd_reloc_dangerous:
             msg = _("internal error: dangerous relocation");
             break;

           default:
             msg = _("internal error: unknown error");
             break;
           }

         if (msg)
           r = info->callbacks->warning
             (info, msg, symname, input_bfd, input_section, rel->r_offset);

         if (! r)
           return FALSE;
       }
    }

  return TRUE;
}

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static bfd_boolean cris_elf_set_mach_from_flags ( bfd abfd,
unsigned long  flags 
) [static]

Definition at line 3216 of file elf32-cris.c.

{
  switch (flags & EF_CRIS_VARIANT_MASK)
    {
    case EF_CRIS_VARIANT_ANY_V0_V10:
      bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10);
      break;

    case EF_CRIS_VARIANT_V32:
      bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32);
      break;

    case EF_CRIS_VARIANT_COMMON_V10_V32:
      bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32);
      break;

    default:
      /* Since we don't recognize them, we obviously can't support them
        with this code; we'd have to require that all future handling
        would be optional.  */
      bfd_set_error (bfd_error_wrong_format);
      return FALSE;
    }

  return TRUE;
}

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static bfd_reloc_status_type cris_final_link_relocate ( reloc_howto_type *  howto,
bfd input_bfd,
asection input_section,
bfd_byte contents,
Elf_Internal_Rela rel,
bfd_vma  relocation 
) [static]

Definition at line 878 of file elf32-cris.c.

{
  bfd_reloc_status_type r;

  /* PC-relative relocations are relative to the position *after*
     the reloc.  Note that for R_CRIS_8_PCREL the adjustment is
     not a single byte, since PC must be 16-bit-aligned.  */
  switch (ELF32_R_TYPE (rel->r_info))
    {
      /* Check that the 16-bit GOT relocs are positive.  */
    case R_CRIS_16_GOTPLT:
    case R_CRIS_16_GOT:
      if ((bfd_signed_vma) relocation < 0)
       return bfd_reloc_overflow;
      break;

    case R_CRIS_32_PLT_PCREL:
    case R_CRIS_32_PCREL:
      relocation -= 2;
      /* Fall through.  */
    case R_CRIS_8_PCREL:
    case R_CRIS_16_PCREL:
      relocation -= 2;
      break;

    default:
      break;
    }

  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
                            contents, rel->r_offset,
                            relocation, rel->r_addend);
  return r;
}

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static void cris_info_to_howto_rela ( abfd  ,
arelent cache_ptr,
Elf_Internal_Rela dst 
) [static]

Definition at line 478 of file elf32-cris.c.

{
  unsigned int r_type;

  r_type = ELF32_R_TYPE (dst->r_info);
  BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
  cache_ptr->howto = & cris_elf_howto_table [r_type];
}
static reloc_howto_type* cris_reloc_name_lookup ( bfd *abfd  ATTRIBUTE_UNUSED,
const char *  r_name 
) [static]

Definition at line 461 of file elf32-cris.c.

{
  unsigned int i;

  for (i = 0;
       i < sizeof (cris_elf_howto_table) / sizeof (cris_elf_howto_table[0]);
       i++)
    if (cris_elf_howto_table[i].name != NULL
       && strcasecmp (cris_elf_howto_table[i].name, r_name) == 0)
      return &cris_elf_howto_table[i];

  return NULL;
}

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static reloc_howto_type* cris_reloc_type_lookup ( abfd  ,
bfd_reloc_code_real_type  code 
) [static]

Definition at line 447 of file elf32-cris.c.

{
  unsigned int i;

  for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++)
    if (cris_reloc_map [i].bfd_reloc_val == code)
      return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];

  return NULL;
}

Definition at line 2218 of file elf32-cris.c.

{
  bfd *dynobj;
  asection *s;
  unsigned int power_of_two;
  bfd_size_type plt_entry_size;

  dynobj = elf_hash_table (info)->dynobj;

  /* Make sure we know what is going on here.  */
  BFD_ASSERT (dynobj != NULL
             && (h->needs_plt
                || h->u.weakdef != NULL
                || (h->def_dynamic
                    && h->ref_regular
                    && !h->def_regular)));

  plt_entry_size
    = (bfd_get_mach (dynobj) == bfd_mach_cris_v32
       ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);

  /* If this is a function, put it in the procedure linkage table.  We
     will fill in the contents of the procedure linkage table later,
     when we know the address of the .got section.  */
  if (h->type == STT_FUNC
      || h->needs_plt)
    {
      /* If we link a program (not a DSO), we'll get rid of unnecessary
        PLT entries; we point to the actual symbols -- even for pic
        relocs, because a program built with -fpic should have the same
        result as one built without -fpic, specifically considering weak
        symbols.
        FIXME: m68k and i386 differ here, for unclear reasons.  */
      if (! info->shared
         && !h->def_dynamic)
       {
         /* This case can occur if we saw a PLT reloc in an input file,
            but the symbol was not defined by a dynamic object.  In such
            a case, we don't actually need to build a procedure linkage
            table, and we can just do an absolute or PC reloc instead, or
            change a .got.plt index to a .got index for GOTPLT relocs.  */
         BFD_ASSERT (h->needs_plt);
         h->needs_plt = 0;
         h->plt.offset = (bfd_vma) -1;
         return
           elf_cris_adjust_gotplt_to_got ((struct
                                       elf_cris_link_hash_entry *) h,
                                      info);
       }

      /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
        where a pointer-equivalent symbol was unimportant (i.e. more
        like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
        of the PLT.  We can't for the executable, because the GOT
        entries will point to the PLT there (and be constant).  */
      if (info->shared
         && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*)
                                       h, info))
       return FALSE;

      /* GC or folding may have rendered this entry unused.  */
      if (h->plt.refcount <= 0)
       {
         h->needs_plt = 0;
         h->plt.offset = (bfd_vma) -1;
         return TRUE;
       }

      /* Make sure this symbol is output as a dynamic symbol.  */
      if (h->dynindx == -1)
       {
         if (! bfd_elf_link_record_dynamic_symbol (info, h))
           return FALSE;
       }

      s = bfd_get_section_by_name (dynobj, ".plt");
      BFD_ASSERT (s != NULL);

      /* If this is the first .plt entry, make room for the special
        first entry.  */
      if (s->size == 0)
       s->size += plt_entry_size;

      /* If this symbol is not defined in a regular file, and we are
        not generating a shared library, then set the symbol to this
        location in the .plt.  */
      if (!info->shared
         && !h->def_regular)
       {
         h->root.u.def.section = s;
         h->root.u.def.value = s->size;
       }

      /* If there's already a GOT entry, use that, not a .got.plt.  A
        GOT field still has a reference count when we get here; it's
        not yet changed to an offset.  We can't do this for an
        executable, because then the reloc associated with the PLT
        would get a non-PLT reloc pointing to the PLT.  FIXME: Move
        this to elf_cris_try_fold_plt_to_got.  */
      if (info->shared && h->got.refcount > 0)
       {
         h->got.refcount += h->plt.refcount;

         /* Mark the PLT offset to use the GOT entry by setting the low
            bit in the plt offset; it is always a multiple of
            plt_entry_size (which is at least a multiple of 2).  */
         BFD_ASSERT ((s->size % plt_entry_size) == 0);

         /* Change the PLT refcount to an offset.  */
         h->plt.offset = s->size;

         /* By not setting gotplt_offset (i.e. it remains at 0), we signal
            that the got entry should be used instead.  */
         BFD_ASSERT (((struct elf_cris_link_hash_entry *)
                     h)->gotplt_offset == 0);

         /* Make room for this entry.  */
         s->size += plt_entry_size;

         return TRUE;
       }

      /* No GOT reference for this symbol; prepare for an ordinary PLT.  */
      h->plt.offset = s->size;

      /* Make room for this entry.  */
      s->size += plt_entry_size;

      /* We also need to make an entry in the .got.plt section, which
        will be placed in the .got section by the linker script.  */
      ((struct elf_cris_link_hash_entry *) h)->gotplt_offset
       = elf_cris_hash_table (info)->next_gotplt_entry;
      elf_cris_hash_table (info)->next_gotplt_entry += 4;

      s = bfd_get_section_by_name (dynobj, ".got.plt");
      BFD_ASSERT (s != NULL);
      s->size += 4;

      /* We also need to make an entry in the .rela.plt section.  */

      s = bfd_get_section_by_name (dynobj, ".rela.plt");
      BFD_ASSERT (s != NULL);
      s->size += sizeof (Elf32_External_Rela);

      return TRUE;
    }

  /* Reinitialize the plt offset now that it is not used as a reference
     count any more.  */
  h->plt.offset = (bfd_vma) -1;

  /* If this is a weak symbol, and there is a real definition, the
     processor independent code will have arranged for us to see the
     real definition first, and we can just use the same value.  */
  if (h->u.weakdef != NULL)
    {
      BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
                || h->u.weakdef->root.type == bfd_link_hash_defweak);
      h->root.u.def.section = h->u.weakdef->root.u.def.section;
      h->root.u.def.value = h->u.weakdef->root.u.def.value;
      return TRUE;
    }

  /* This is a reference to a symbol defined by a dynamic object which
     is not a function.  */

  /* If we are creating a shared library, we must presume that the
     only references to the symbol are via the global offset table.
     For such cases we need not do anything here; the relocations will
     be handled correctly by relocate_section.  */
  if (info->shared)
    return TRUE;

  /* If there are no references to this symbol that do not use the
     GOT, we don't need to generate a copy reloc.  */
  if (!h->non_got_ref)
    return TRUE;

  if (h->size == 0)
    {
      (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
                          h->root.root.string);
      return TRUE;
    }

  /* We must allocate the symbol in our .dynbss section, which will
     become part of the .bss section of the executable.  There will be
     an entry for this symbol in the .dynsym section.  The dynamic
     object will contain position independent code, so all references
     from the dynamic object to this symbol will go through the global
     offset table.  The dynamic linker will use the .dynsym entry to
     determine the address it must put in the global offset table, so
     both the dynamic object and the regular object will refer to the
     same memory location for the variable.  */

  s = bfd_get_section_by_name (dynobj, ".dynbss");
  BFD_ASSERT (s != NULL);

  /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
     copy the initial value out of the dynamic object and into the
     runtime process image.  We need to remember the offset into the
     .rela.bss section we are going to use.  */
  if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
    {
      asection *srel;

      srel = bfd_get_section_by_name (dynobj, ".rela.bss");
      BFD_ASSERT (srel != NULL);
      srel->size += sizeof (Elf32_External_Rela);
      h->needs_copy = 1;
    }

  /* Historic precedent: m68k and i386 allow max 8-byte alignment for the
     thing to copy; so do we.  */

  /* We need to figure out the alignment required for this symbol.  I
     have no idea how ELF linkers handle this.  */
  power_of_two = bfd_log2 (h->size);
  if (power_of_two > 3)
    power_of_two = 3;

  /* Apply the required alignment.  */
  s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
  if (power_of_two > bfd_get_section_alignment (dynobj, s))
    {
      if (!bfd_set_section_alignment (dynobj, s, power_of_two))
       return FALSE;
    }

  /* Define the symbol as being at this point in the section.  */
  h->root.u.def.section = s;
  h->root.u.def.value = s->size;

  /* Increment the section size to make room for the symbol.  */
  s->size += h->size;

  return TRUE;
}

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Definition at line 2091 of file elf32-cris.c.

{
  struct bfd_link_info *info = (struct bfd_link_info *) p;

  if (h->root.root.type == bfd_link_hash_warning)
    h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;

  /* If nobody wanted a GOTPLT with this symbol, we're done.  */
  if (h->gotplt_refcount <= 0)
    return TRUE;

  if (h->root.got.refcount > 0)
    {
      /* There's a GOT entry for this symbol.  Just adjust the refcount.
        Probably not necessary at this stage, but keeping it accurate
        helps avoiding surprises later.  */
      h->root.got.refcount += h->gotplt_refcount;
      h->gotplt_refcount = 0;
    }
  else
    {
      /* No GOT entry for this symbol.  We need to create one.  */
      bfd *dynobj = elf_hash_table (info)->dynobj;
      asection *sgot;
      asection *srelgot;

      BFD_ASSERT (dynobj != NULL);
      sgot = bfd_get_section_by_name (dynobj, ".got");
      srelgot = bfd_get_section_by_name (dynobj, ".rela.got");

      /* Put an accurate refcount there.  */
      h->root.got.refcount = h->gotplt_refcount;

      h->gotplt_refcount = 0;

      /* We always have a .got and a .rela.got section if there were
        GOTPLT relocs in input.  */
      BFD_ASSERT (sgot != NULL && srelgot != NULL);

      /* Allocate space in the .got section.  */
      sgot->size += 4;

      /* Allocate relocation space.  */
      srelgot->size += sizeof (Elf32_External_Rela);
    }

  return TRUE;
}

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Definition at line 3078 of file elf32-cris.c.

{
  struct elf_cris_pcrel_relocs_copied *s;
  struct bfd_link_info *info = (struct bfd_link_info *) inf;

  if (h->root.root.type == bfd_link_hash_warning)
    h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;

  /* If a symbol has been forced local or we have found a regular
     definition for the symbolic link case, then we won't be needing
     any relocs.  */
  if (h->root.def_regular
      && (h->root.forced_local
         || info->symbolic))
    {
      for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
       s->section->size -= s->count * sizeof (Elf32_External_Rela);
    }

  return TRUE;
}

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Definition at line 3107 of file elf32-cris.c.

{
  struct bfd_link_info *info = (struct bfd_link_info *) inf;

  if (h->root.root.type == bfd_link_hash_warning)
    h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;

  /* If we're not creating a shared library and have a symbol which is
     referred to by .got references, but the symbol is defined locally,
     (or rather, not defined by a DSO) then lose the reloc for the .got
     (don't allocate room for it).  Likewise for relocs for something
     for which we create a PLT.  */
  if (!h->root.def_dynamic
      || h->root.plt.refcount > 0)
    {
      if (h->root.got.refcount > 0
         /* The size of this section is only valid and in sync with the
            various reference counts if we do dynamic; don't decrement it
            otherwise.  */
         && elf_hash_table (info)->dynamic_sections_created)
       {
         bfd *dynobj = elf_hash_table (info)->dynobj;
         asection *srelgot;

         BFD_ASSERT (dynobj != NULL);

         srelgot = bfd_get_section_by_name (dynobj, ".rela.got");

         BFD_ASSERT (srelgot != NULL);

         srelgot->size -= sizeof (Elf32_External_Rela);
       }

      /* If the locally-defined symbol isn't used by a DSO, then we don't
        have to export it as a dynamic symbol.  This was already done for
        functions; doing this for all symbols would presumably not
        introduce new problems.  Of course we don't do this if we're
        exporting all dynamic symbols.  */
      if (! info->export_dynamic
         && h->root.dynindx != -1
         && !h->root.def_dynamic
         && !h->root.ref_dynamic)
       {
         h->root.dynindx = -1;
         _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
                              h->root.dynstr_index);
       }
    }

  return TRUE;
}

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static bfd_boolean elf_cris_finish_dynamic_sections ( bfd output_bfd,
struct bfd_link_info info 
) [static]

Definition at line 1811 of file elf32-cris.c.

{
  bfd *dynobj;
  asection *sgot;
  asection *sdyn;

  dynobj = elf_hash_table (info)->dynobj;

  sgot = bfd_get_section_by_name (dynobj, ".got.plt");
  BFD_ASSERT (sgot != NULL);
  sdyn = bfd_get_section_by_name (dynobj, ".dynamic");

  if (elf_hash_table (info)->dynamic_sections_created)
    {
      asection *splt;
      Elf32_External_Dyn *dyncon, *dynconend;

      splt = bfd_get_section_by_name (dynobj, ".plt");
      BFD_ASSERT (splt != NULL && sdyn != NULL);

      dyncon = (Elf32_External_Dyn *) sdyn->contents;
      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
      for (; dyncon < dynconend; dyncon++)
       {
         Elf_Internal_Dyn dyn;
         asection *s;

         bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);

         switch (dyn.d_tag)
           {
           default:
             break;

           case DT_PLTGOT:
             s = bfd_get_section_by_name (output_bfd, ".got");
             BFD_ASSERT (s != NULL);
             dyn.d_un.d_ptr = s->vma;
             bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
             break;

           case DT_JMPREL:
             /* Yes, we *can* have a .plt and no .plt.rela, for instance
               if all symbols are found in the .got (not .got.plt).  */
             s = bfd_get_section_by_name (output_bfd, ".rela.plt");
             dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
             bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
             break;

           case DT_PLTRELSZ:
             s = bfd_get_section_by_name (output_bfd, ".rela.plt");
             if (s == NULL)
              dyn.d_un.d_val = 0;
             else
              dyn.d_un.d_val = s->size;
             bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
             break;

           case DT_RELASZ:
             /* The procedure linkage table relocs (DT_JMPREL) should
               not be included in the overall relocs (DT_RELA).
               Therefore, we override the DT_RELASZ entry here to
               make it not include the JMPREL relocs.  Since the
               linker script arranges for .rela.plt to follow all
               other relocation sections, we don't have to worry
               about changing the DT_RELA entry.  */
             s = bfd_get_section_by_name (output_bfd, ".rela.plt");
             if (s != NULL)
              dyn.d_un.d_val -= s->size;
             bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
             break;
           }
       }

      /* Fill in the first entry in the procedure linkage table.  */
      if (splt->size > 0)
       {
         if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
           {
             if (info->shared)
              memcpy (splt->contents, elf_cris_pic_plt0_entry_v32,
                     PLT_ENTRY_SIZE_V32);
             else
              {
                memcpy (splt->contents, elf_cris_plt0_entry_v32,
                       PLT_ENTRY_SIZE_V32);
                bfd_put_32 (output_bfd,
                           sgot->output_section->vma
                           + sgot->output_offset + 4,
                           splt->contents + 4);

                elf_section_data (splt->output_section)->this_hdr.sh_entsize
                  = PLT_ENTRY_SIZE_V32;
              }
           }
         else
           {
             if (info->shared)
              memcpy (splt->contents, elf_cris_pic_plt0_entry,
                     PLT_ENTRY_SIZE);
             else
              {
                memcpy (splt->contents, elf_cris_plt0_entry,
                       PLT_ENTRY_SIZE);
                bfd_put_32 (output_bfd,
                           sgot->output_section->vma
                           + sgot->output_offset + 4,
                           splt->contents + 6);
                bfd_put_32 (output_bfd,
                           sgot->output_section->vma
                           + sgot->output_offset + 8,
                           splt->contents + 14);

                elf_section_data (splt->output_section)->this_hdr.sh_entsize
                  = PLT_ENTRY_SIZE;
              }
            }
       }
    }

  /* Fill in the first three entries in the global offset table.  */
  if (sgot->size > 0)
    {
      if (sdyn == NULL)
       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
      else
       bfd_put_32 (output_bfd,
                  sdyn->output_section->vma + sdyn->output_offset,
                  sgot->contents);
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
      bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
    }

  elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;

  return TRUE;
}

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static bfd_boolean elf_cris_finish_dynamic_symbol ( bfd output_bfd,
struct bfd_link_info info,
struct elf_link_hash_entry h,
Elf_Internal_Sym *  sym 
) [static]

Definition at line 1569 of file elf32-cris.c.

{
  bfd *dynobj;

  /* Where in the plt entry to put values.  */
  int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;

  /* What offset to add to the distance to the first PLT entry for the
     value at plt_off3.   */
  int plt_off3_value_bias = 4;

  /* Where in the PLT entry the call-dynlink-stub is (happens to be same
     for PIC and non-PIC for v32 and pre-v32).  */
  int plt_stub_offset = 8;
  int plt_entry_size = PLT_ENTRY_SIZE;
  const bfd_byte *plt_entry = elf_cris_plt_entry;
  const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry;

  /* Adjust the various PLT entry offsets.  */
  if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
    {
      plt_off2 = 14;
      plt_off3 = 20;
      plt_off3_value_bias = -2;
      plt_stub_offset = 12;
      plt_entry_size = PLT_ENTRY_SIZE_V32;
      plt_entry = elf_cris_plt_entry_v32;
      plt_pic_entry = elf_cris_pic_plt_entry_v32;
    }

  dynobj = elf_hash_table (info)->dynobj;

  if (h->plt.offset != (bfd_vma) -1)
    {
      asection *splt;
      asection *sgotplt;
      asection *sgot;
      asection *srela;
      bfd_vma got_base;

      bfd_vma gotplt_offset
       = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
      Elf_Internal_Rela rela;
      bfd_byte *loc;
      bfd_boolean has_gotplt = gotplt_offset != 0;

      /* Get the index in the procedure linkage table which
        corresponds to this symbol.  This is the index of this symbol
        in all the symbols for which we are making plt entries.  The
        first entry in the procedure linkage table is reserved.  */
      /* We have to count backwards here, and the result is only valid as
        an index into .got.plt and its relocations.  FIXME: Constants...  */
      bfd_vma gotplt_index = gotplt_offset/4 - 3;

      /* Get the offset into the .got table of the entry that corresponds
        to this function.  Note that we embed knowledge that "incoming"
        .got goes after .got.plt in the output without padding (pointer
        aligned).  However, that knowledge is present in several other
        places too.  */
      bfd_vma got_offset
       = (has_gotplt
          ? gotplt_offset
          : h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);

      /* This symbol has an entry in the procedure linkage table.  Set it
        up.  */

      BFD_ASSERT (h->dynindx != -1);

      splt = bfd_get_section_by_name (dynobj, ".plt");
      sgot = bfd_get_section_by_name (dynobj, ".got");
      sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
      srela = bfd_get_section_by_name (dynobj, ".rela.plt");
      BFD_ASSERT (splt != NULL && sgotplt != NULL
                && (! has_gotplt || srela != NULL));

      got_base = sgotplt->output_section->vma + sgotplt->output_offset;

      /* Fill in the entry in the procedure linkage table.  */
      if (! info->shared)
       {
         memcpy (splt->contents + h->plt.offset, plt_entry,
                plt_entry_size);

         /* We need to enter the absolute address of the GOT entry here.  */
         bfd_put_32 (output_bfd, got_base + got_offset,
                    splt->contents + h->plt.offset + plt_off1);
       }
      else
       {
         memcpy (splt->contents + h->plt.offset, plt_pic_entry,
                plt_entry_size);
         bfd_put_32 (output_bfd, got_offset,
                    splt->contents + h->plt.offset + plt_off1);
       }

      /* Fill in the plt entry and make a relocation, if this is a "real"
        PLT entry.  */
      if (has_gotplt)
       {
         /* Fill in the offset to the reloc table.  */
         bfd_put_32 (output_bfd,
                    gotplt_index * sizeof (Elf32_External_Rela),
                    splt->contents + h->plt.offset + plt_off2);

         /* Fill in the offset to the first PLT entry, where to "jump".  */
         bfd_put_32 (output_bfd,
                    - (h->plt.offset + plt_off3 + plt_off3_value_bias),
                    splt->contents + h->plt.offset + plt_off3);

         /* Fill in the entry in the global offset table with the address of
            the relocating stub.  */
         bfd_put_32 (output_bfd,
                    (splt->output_section->vma
                     + splt->output_offset
                     + h->plt.offset
                     + plt_stub_offset),
                    sgotplt->contents + got_offset);

         /* Fill in the entry in the .rela.plt section.  */
         rela.r_offset = (sgotplt->output_section->vma
                        + sgotplt->output_offset
                        + got_offset);
         rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
         rela.r_addend = 0;
         loc = srela->contents + gotplt_index * sizeof (Elf32_External_Rela);
         bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
       }

      if (!h->def_regular)
       {
         /* Mark the symbol as undefined, rather than as defined in
            the .plt section.  Leave the value alone.  */
         sym->st_shndx = SHN_UNDEF;

         /* FIXME: From elf32-sparc.c 2001-02-19 (1.18).  I still don't
            know whether resetting the value is significant; if it really
            is, rather than a quirk or bug in the sparc port, then I
            believe we'd see this elsewhere.  */
         /* If the symbol is weak, we do need to clear the value.
            Otherwise, the PLT entry would provide a definition for
            the symbol even if the symbol wasn't defined anywhere,
            and so the symbol would never be NULL.  */
         if (!h->ref_regular_nonweak)
           sym->st_value = 0;
       }
    }

  /* For an ordinary program, we emit .got relocs only for symbols that
     are in the dynamic-symbols table and are either defined by the
     program or are undefined weak symbols, or are function symbols
     where we do not output a PLT: the PLT reloc was output above and all
     references to the function symbol are redirected to the PLT.  */
  if (h->got.offset != (bfd_vma) -1
      && (info->shared
         || (h->dynindx != -1
             && h->plt.offset == (bfd_vma) -1
             && !h->def_regular
             && h->root.type != bfd_link_hash_undefweak)))
    {
      asection *sgot;
      asection *srela;
      Elf_Internal_Rela rela;
      bfd_byte *loc;
      bfd_byte *where;

      /* This symbol has an entry in the global offset table.  Set it up.  */

      sgot = bfd_get_section_by_name (dynobj, ".got");
      srela = bfd_get_section_by_name (dynobj, ".rela.got");
      BFD_ASSERT (sgot != NULL && srela != NULL);

      rela.r_offset = (sgot->output_section->vma
                     + sgot->output_offset
                     + (h->got.offset &~ (bfd_vma) 1));

      /* If this is a static link, or it is a -Bsymbolic link and the
        symbol is defined locally or was forced to be local because
        of a version file, we just want to emit a RELATIVE reloc.
        The entry in the global offset table will already have been
        initialized in the relocate_section function.  */
      where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
      if (! elf_hash_table (info)->dynamic_sections_created
         || (info->shared
             && (info->symbolic || h->dynindx == -1)
             && h->def_regular))
       {
         rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
         rela.r_addend = bfd_get_signed_32 (output_bfd, where);
       }
      else
       {
         bfd_put_32 (output_bfd, (bfd_vma) 0, where);
         rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
         rela.r_addend = 0;
       }

      loc = srela->contents;
      loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
    }

  if (h->needs_copy)
    {
      asection *s;
      Elf_Internal_Rela rela;
      bfd_byte *loc;

      /* This symbol needs a copy reloc.  Set it up.  */

      BFD_ASSERT (h->dynindx != -1
                && (h->root.type == bfd_link_hash_defined
                    || h->root.type == bfd_link_hash_defweak));

      s = bfd_get_section_by_name (h->root.u.def.section->owner,
                               ".rela.bss");
      BFD_ASSERT (s != NULL);

      rela.r_offset = (h->root.u.def.value
                     + h->root.u.def.section->output_section->vma
                     + h->root.u.def.section->output_offset);
      rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
      rela.r_addend = 0;
      loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
      bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
    }

  /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
  if (strcmp (h->root.root.string, "_DYNAMIC") == 0
      || h == elf_hash_table (info)->hgot)
    sym->st_shndx = SHN_ABS;

  return TRUE;
}

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static void elf_cris_hide_symbol ( struct bfd_link_info info,
struct elf_link_hash_entry h,
bfd_boolean  force_local 
) [static]

Definition at line 2201 of file elf32-cris.c.

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static struct bfd_hash_entry* elf_cris_link_hash_newfunc ( struct bfd_hash_entry entry,
struct bfd_hash_table table,
const char *  string 
) [static, read]

Definition at line 815 of file elf32-cris.c.

{
  struct elf_cris_link_hash_entry *ret =
    (struct elf_cris_link_hash_entry *) entry;

  /* Allocate the structure if it has not already been allocated by a
     subclass.  */
  if (ret == (struct elf_cris_link_hash_entry *) NULL)
    ret = ((struct elf_cris_link_hash_entry *)
          bfd_hash_allocate (table,
                           sizeof (struct elf_cris_link_hash_entry)));
  if (ret == (struct elf_cris_link_hash_entry *) NULL)
    return (struct bfd_hash_entry *) ret;

  /* Call the allocation method of the superclass.  */
  ret = ((struct elf_cris_link_hash_entry *)
        _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
                                 table, string));
  if (ret != (struct elf_cris_link_hash_entry *) NULL)
    {
      ret->pcrel_relocs_copied = NULL;
      ret->gotplt_refcount = 0;
      ret->gotplt_offset = 0;
    }

  return (struct bfd_hash_entry *) ret;
}

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static struct bfd_link_hash_table* elf_cris_link_hash_table_create ( bfd abfd) [static, read]

Definition at line 849 of file elf32-cris.c.

{
  struct elf_cris_link_hash_table *ret;
  bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);

  ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
  if (ret == (struct elf_cris_link_hash_table *) NULL)
    return NULL;

  if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
                                  elf_cris_link_hash_newfunc,
                                  sizeof (struct elf_cris_link_hash_entry)))
    {
      free (ret);
      return NULL;
    }

  /* Initialize to skip over the first three entries in the gotplt; they
     are used for run-time symbol evaluation.  */
  ret->next_gotplt_entry = 12;

  return &ret->root.root;
}

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static enum elf_reloc_type_class elf_cris_reloc_type_class ( Elf_Internal_Rela rela) const [static]

Definition at line 3376 of file elf32-cris.c.

{
  switch ((int) ELF32_R_TYPE (rela->r_info))
    {
    case R_CRIS_RELATIVE:
      return reloc_class_relative;
    case R_CRIS_JUMP_SLOT:
      return reloc_class_plt;
    case R_CRIS_COPY:
      return reloc_class_copy;
    default:
      return reloc_class_normal;
    }
}

Definition at line 2897 of file elf32-cris.c.

{
  bfd *dynobj;
  asection *s;
  bfd_boolean plt;
  bfd_boolean relocs;

  dynobj = elf_hash_table (info)->dynobj;
  BFD_ASSERT (dynobj != NULL);

  if (elf_hash_table (info)->dynamic_sections_created)
    {
      /* Set the contents of the .interp section to the interpreter.  */
      if (info->executable)
       {
         s = bfd_get_section_by_name (dynobj, ".interp");
         BFD_ASSERT (s != NULL);
         s->size = sizeof ELF_DYNAMIC_INTERPRETER;
         s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
       }
    }
  else
    {
      /* Adjust all expected GOTPLT uses to use a GOT entry instead.  */
      elf_cris_link_hash_traverse (elf_cris_hash_table (info),
                               elf_cris_adjust_gotplt_to_got,
                               (PTR) info);

      /* We may have created entries in the .rela.got section.
        However, if we are not creating the dynamic sections, we will
        not actually use these entries.  Reset the size of .rela.got,
        which will cause it to get stripped from the output file
        below.  */
      s = bfd_get_section_by_name (dynobj, ".rela.got");
      if (s != NULL)
       s->size = 0;
    }

  /* If this is a -Bsymbolic shared link, then we need to discard all PC
     relative relocs against symbols defined in a regular object.  We
     allocated space for them in the check_relocs routine, but we will not
     fill them in in the relocate_section routine.  We also discard space
     for relocs that have become for local symbols due to symbol
     visibility changes.  For programs, we discard space for relocs for
     symbols not referenced by any dynamic object.  */
  if (info->shared)
    elf_cris_link_hash_traverse (elf_cris_hash_table (info),
                             elf_cris_discard_excess_dso_dynamics,
                             (PTR) info);
  else
    elf_cris_link_hash_traverse (elf_cris_hash_table (info),
                             elf_cris_discard_excess_program_dynamics,
                             (PTR) info);

  /* The check_relocs and adjust_dynamic_symbol entry points have
     determined the sizes of the various dynamic sections.  Allocate
     memory for them.  */
  plt = FALSE;
  relocs = FALSE;
  for (s = dynobj->sections; s != NULL; s = s->next)
    {
      const char *name;

      if ((s->flags & SEC_LINKER_CREATED) == 0)
       continue;

      /* It's OK to base decisions on the section name, because none
        of the dynobj section names depend upon the input files.  */
      name = bfd_get_section_name (dynobj, s);

      if (strcmp (name, ".plt") == 0)
       {
         /* Remember whether there is a PLT.  */
         plt = s->size != 0;
       }
      else if (CONST_STRNEQ (name, ".rela"))
       {
         if (s->size != 0)
           {
             /* Remember whether there are any reloc sections other
                 than .rela.plt.  */
             if (strcmp (name, ".rela.plt") != 0)
                relocs = TRUE;

             /* We use the reloc_count field as a counter if we need
               to copy relocs into the output file.  */
             s->reloc_count = 0;
           }
       }
      else if (! CONST_STRNEQ (name, ".got")
              && strcmp (name, ".dynbss") != 0)
       {
         /* It's not one of our sections, so don't allocate space.  */
         continue;
       }

      if (s->size == 0)
       {
         /* If we don't need this section, strip it from the
            output file.  This is mostly to handle .rela.bss and
            .rela.plt.  We must create both sections in
            create_dynamic_sections, because they must be created
            before the linker maps input sections to output
            sections.  The linker does that before
            adjust_dynamic_symbol is called, and it is that
            function which decides whether anything needs to go
            into these sections.  */
         s->flags |= SEC_EXCLUDE;
         continue;
       }

      if ((s->flags & SEC_HAS_CONTENTS) == 0)
       continue;

      /* Allocate memory for the section contents. We use bfd_zalloc here
        in case unused entries are not reclaimed before the section's
        contents are written out.  This should not happen, but this way
        if it does, we will not write out garbage.  For reloc sections,
        this will make entries have the type R_CRIS_NONE.  */
      s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
      if (s->contents == NULL)
       return FALSE;
    }

  if (elf_hash_table (info)->dynamic_sections_created)
    {
      /* Add some entries to the .dynamic section.  We fill in the
        values later, in elf_cris_finish_dynamic_sections, but we
        must add the entries now so that we get the correct size for
        the .dynamic section.  The DT_DEBUG entry is filled in by the
        dynamic linker and used by the debugger.  */
#define add_dynamic_entry(TAG, VAL) \
  _bfd_elf_add_dynamic_entry (info, TAG, VAL)

      if (!info->shared)
       {
         if (!add_dynamic_entry (DT_DEBUG, 0))
           return FALSE;
       }

      if (plt)
       {
         if (!add_dynamic_entry (DT_PLTGOT, 0)
             || !add_dynamic_entry (DT_PLTRELSZ, 0)
             || !add_dynamic_entry (DT_PLTREL, DT_RELA)
             || !add_dynamic_entry (DT_JMPREL, 0))
           return FALSE;
       }

      if (relocs)
       {
         if (!add_dynamic_entry (DT_RELA, 0)
             || !add_dynamic_entry (DT_RELASZ, 0)
             || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
           return FALSE;
       }

      if ((info->flags & DF_TEXTREL) != 0)
       {
         if (!add_dynamic_entry (DT_TEXTREL, 0))
           return FALSE;
         info->flags |= DF_TEXTREL;
       }
    }
#undef add_dynamic_entry

  return TRUE;
}

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Definition at line 2167 of file elf32-cris.c.

{
  struct bfd_link_info *info = (struct bfd_link_info *) p;

  /* If there are no GOT references for this symbol, we can't fold any
     other reference so there's nothing to do.  Likewise if there are no
     PLT references; GOTPLT references included.  */
  if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
    return TRUE;

  /* GOTPLT relocs are supposed to be included into the PLT refcount.  */
  BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);

  if (h->gotplt_refcount == h->root.plt.refcount)
    {
      /* The only PLT references are GOTPLT references, and there are GOT
        references.  Convert PLT to GOT references.  */
      if (! elf_cris_adjust_gotplt_to_got (h, info))
       return FALSE;

      /* Clear the PLT references, so no PLT will be created.  */
      h->root.plt.offset = (bfd_vma) -1;
    }

  return TRUE;
}

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static reloc_howto_type* cris_reloc_type_lookup PARAMS ( (bfd *abfd, bfd_reloc_code_real_type code ) [static]
static void cris_info_to_howto_rela PARAMS ( (bfd *, arelent *, Elf_Internal_Rela *)  ) [static]
static bfd_reloc_status_type cris_elf_pcrel_reloc PARAMS ( (bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)  ) [static]
static bfd_boolean cris_elf_relocate_section PARAMS ( (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)  ) [static]
static bfd_reloc_status_type cris_final_link_relocate PARAMS ( (reloc_howto_type *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, bfd_vma ) [static]
static bfd_boolean cris_elf_object_p PARAMS ( (bfd *)  ) [static]
static void cris_elf_final_write_processing PARAMS ( (bfd *, bfd_boolean ) [static]
static enum elf_reloc_type_class PARAMS ( (const Elf_Internal_Rela *)  ) [static, abstract]

Variable Documentation

reloc_howto_type cris_elf_howto_table[] [static]

Definition at line 97 of file elf32-cris.c.

struct cris_reloc_map[] [static]
Initial value:
{
  { BFD_RELOC_NONE,         R_CRIS_NONE },
  { BFD_RELOC_8,            R_CRIS_8 },
  { BFD_RELOC_16,           R_CRIS_16 },
  { BFD_RELOC_32,           R_CRIS_32 },
  { BFD_RELOC_8_PCREL,             R_CRIS_8_PCREL },
  { BFD_RELOC_16_PCREL,            R_CRIS_16_PCREL },
  { BFD_RELOC_32_PCREL,            R_CRIS_32_PCREL },
  { BFD_RELOC_VTABLE_INHERIT,      R_CRIS_GNU_VTINHERIT },
  { BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY },
  { BFD_RELOC_CRIS_COPY,    R_CRIS_COPY },
  { BFD_RELOC_CRIS_GLOB_DAT,       R_CRIS_GLOB_DAT },
  { BFD_RELOC_CRIS_JUMP_SLOT,      R_CRIS_JUMP_SLOT },
  { BFD_RELOC_CRIS_RELATIVE,       R_CRIS_RELATIVE },
  { BFD_RELOC_CRIS_16_GOT,  R_CRIS_16_GOT },
  { BFD_RELOC_CRIS_32_GOT,  R_CRIS_32_GOT },
  { BFD_RELOC_CRIS_16_GOTPLT,      R_CRIS_16_GOTPLT },
  { BFD_RELOC_CRIS_32_GOTPLT,      R_CRIS_32_GOTPLT },
  { BFD_RELOC_CRIS_32_GOTREL,      R_CRIS_32_GOTREL },
  { BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL },
  { BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL }
}

Definition at line 422 of file elf32-cris.c.

Initial value:
{
  0xfc, 0xe1, 0x7e, 0x7e,   
  0x04, 0x01, 0x30, 0x7a,   
  0x08, 0x01, 0x30, 0x09,   
  0, 0, 0, 0, 0, 0, 0, 0,   
}

Definition at line 689 of file elf32-cris.c.

Initial value:
{
  0x84, 0xe2, 
  0x04, 0x01, 
  0x7e, 0x7a, 
  0x3f, 0x7a, 
  0x04, 0xf2, 
  0x6f, 0xfa, 
  0xbf, 0x09, 
  0xb0, 0x05, 
  0, 0,              
  0, 0, 0, 0,
  0, 0, 0, 0
}

Definition at line 697 of file elf32-cris.c.

Initial value:
{
  0x6f, 0x0d,   
  0, 0, 0, 0, 
  0x30, 0x09, 
  0x3f, 0x7e, 
  0, 0, 0, 0, 
  0x2f, 0xfe, 
  0xec, 0xff, 
  0xff, 0xff
}

Definition at line 714 of file elf32-cris.c.

Initial value:
{
  0x6f, 0x0d, 
  0, 0, 0, 0, 
  0x6f, 0xfa, 
  0xbf, 0x09, 
  0xb0, 0x05, 
  0x3f, 0x7e, 
  0, 0, 0, 0, 
  0xbf, 0x0e, 
  0, 0, 0, 0, 
  0xb0, 0x05  
}

Definition at line 726 of file elf32-cris.c.

Initial value:
{
  0xfc, 0xe1,
  0x7e, 0x7e, 
  0x7f, 0x0d,   
  0, 0, 0, 0, 
  0x30, 0x7a, 
  0x7f, 0x0d,   
  0, 0, 0, 0, 
  0x30, 0x09  
}

Definition at line 632 of file elf32-cris.c.

Initial value:
{
  0x84, 0xe2, 
  0x6f, 0xfe, 
  0, 0, 0, 0, 
  0x7e, 0x7a, 
  0x3f, 0x7a, 
  0x04, 0xf2, 
  0x6f, 0xfa, 
  0xbf, 0x09, 
  0xb0, 0x05, 
  0, 0        
}

Definition at line 644 of file elf32-cris.c.

Initial value:
{
  0x7f, 0x0d,   
  0, 0, 0, 0, 
  0x30, 0x09, 
  0x3f,        0x7e, 
  0, 0, 0, 0, 
  0x2f, 0xfe, 
  0xec, 0xff,
  0xff, 0xff  
}

Definition at line 661 of file elf32-cris.c.

Initial value:
{
  0x6f, 0xfe, 
  0, 0, 0, 0, 
  0x6f, 0xfa,   
  0xbf, 0x09,   
  0xb0, 0x05, 
  0x3f, 0x7e, 
  0, 0, 0, 0, 
  0xbf, 0x0e, 
  0, 0, 0, 0, 
  0xb0, 0x05  
}

Definition at line 673 of file elf32-cris.c.