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cell-binutils  2.17cvs20070401
Defines | Functions
elf32-sh64-com.c File Reference
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/sh.h"
#include "elf32-sh64.h"
#include "../opcodes/sh64-opc.h"

Go to the source code of this file.

Defines

#define SH64_ELF

Functions

static bfd_boolean sh64_address_in_cranges (asection *cranges, bfd_vma, sh64_elf_crange *)
int _bfd_sh64_crange_qsort_cmpb (const void *p1, const void *p2)
int _bfd_sh64_crange_qsort_cmpl (const void *p1, const void *p2)
int _bfd_sh64_crange_bsearch_cmpb (const void *p1, const void *p2)
int _bfd_sh64_crange_bsearch_cmpl (const void *p1, const void *p2)
enum sh64_elf_cr_type sh64_get_contents_type (asection *sec, bfd_vma addr, sh64_elf_crange *rangep)
bfd_boolean sh64_address_is_shmedia (asection *sec, bfd_vma addr)

Define Documentation

#define SH64_ELF

Definition at line 20 of file elf32-sh64-com.c.


Function Documentation

int _bfd_sh64_crange_bsearch_cmpb ( const void *  p1,
const void *  p2 
)

Definition at line 63 of file elf32-sh64-com.c.

{
  bfd_vma a1 = *(bfd_vma *) p1;
  bfd_vma a2 = (bfd_vma) bfd_getb32 (p2);
  bfd_size_type size
    = (bfd_size_type) bfd_getb32 (SH64_CRANGE_CR_SIZE_OFFSET + (char *) p2);

  if (a1 >= a2 + size)
    return 1;
  if (a1 < a2)
    return -1;
  return 0;
}

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int _bfd_sh64_crange_bsearch_cmpl ( const void *  p1,
const void *  p2 
)

Definition at line 78 of file elf32-sh64-com.c.

{
  bfd_vma a1 = *(bfd_vma *) p1;
  bfd_vma a2 = (bfd_vma) bfd_getl32 (p2);
  bfd_size_type size
    = (bfd_size_type) bfd_getl32 (SH64_CRANGE_CR_SIZE_OFFSET + (char *) p2);

  if (a1 >= a2 + size)
    return 1;
  if (a1 < a2)
    return -1;
  return 0;
}

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int _bfd_sh64_crange_qsort_cmpb ( const void *  p1,
const void *  p2 
)

Definition at line 37 of file elf32-sh64-com.c.

{
  bfd_vma a1 = bfd_getb32 (p1);
  bfd_vma a2 = bfd_getb32 (p2);

  /* Preserve order if there's ambiguous contents.  */
  if (a1 == a2)
    return (char *) p1 - (char *) p2;

  return a1 - a2;
}

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int _bfd_sh64_crange_qsort_cmpl ( const void *  p1,
const void *  p2 
)

Definition at line 50 of file elf32-sh64-com.c.

{
  bfd_vma a1 = (bfd_vma) bfd_getl32 (p1);
  bfd_vma a2 = (bfd_vma) bfd_getl32 (p2);

  /* Preserve order if there's ambiguous contents.  */
  if (a1 == a2)
    return (char *) p1 - (char *) p2;

  return a1 - a2;
}

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static bfd_boolean sh64_address_in_cranges ( asection cranges,
bfd_vma  addr,
sh64_elf_crange rangep 
) [static]

Definition at line 97 of file elf32-sh64-com.c.

{
  bfd_byte *cranges_contents;
  bfd_byte *found_rangep;
  bfd_size_type cranges_size = cranges->size;

  /* If the size is not a multiple of the cranges entry size, then
     something is badly wrong.  */
  if ((cranges_size % SH64_CRANGE_SIZE) != 0)
    return FALSE;

  /* If this section has relocations, then we can't do anything sane.  */
  if (bfd_get_section_flags (cranges->owner, cranges) & SEC_RELOC)
    return FALSE;

  /* Has some kind soul (or previous call) left processed, sorted contents
     for us?  */
  if ((bfd_get_section_flags (cranges->owner, cranges) & SEC_IN_MEMORY)
      && elf_section_data (cranges)->this_hdr.sh_type == SHT_SH5_CR_SORTED)
    cranges_contents = cranges->contents;
  else
    {
      if (!bfd_malloc_and_get_section (cranges->owner, cranges,
                                   &cranges_contents))
       goto error_return;

      /* Is it sorted?  */
      if (elf_section_data (cranges)->this_hdr.sh_type
         != SHT_SH5_CR_SORTED)
       /* Nope.  Lets sort it.  */
       qsort (cranges_contents, cranges_size / SH64_CRANGE_SIZE,
              SH64_CRANGE_SIZE,
              bfd_big_endian (cranges->owner)
              ? _bfd_sh64_crange_qsort_cmpb : _bfd_sh64_crange_qsort_cmpl);

      /* Let's keep it around.  */
      cranges->contents = cranges_contents;
      bfd_set_section_flags (cranges->owner, cranges,
                          bfd_get_section_flags (cranges->owner, cranges)
                          | SEC_IN_MEMORY);

      /* It's sorted now.  */
      elf_section_data (cranges)->this_hdr.sh_type = SHT_SH5_CR_SORTED;
    }

  /* Try and find a matching range.  */
  found_rangep
    = bsearch (&addr, cranges_contents, cranges_size / SH64_CRANGE_SIZE,
              SH64_CRANGE_SIZE,
              bfd_big_endian (cranges->owner)
              ? _bfd_sh64_crange_bsearch_cmpb
              : _bfd_sh64_crange_bsearch_cmpl);

  /* Fill in a few return values if we found a matching range.  */
  if (found_rangep)
    {
      enum sh64_elf_cr_type cr_type
       = bfd_get_16 (cranges->owner,
                    SH64_CRANGE_CR_TYPE_OFFSET + found_rangep);
      bfd_vma cr_addr
       = bfd_get_32 (cranges->owner,
                    SH64_CRANGE_CR_ADDR_OFFSET
                    + (char *) found_rangep);
      bfd_size_type cr_size
       = bfd_get_32 (cranges->owner,
                    SH64_CRANGE_CR_SIZE_OFFSET
                    + (char *) found_rangep);

      rangep->cr_addr = cr_addr;
      rangep->cr_size = cr_size;
      rangep->cr_type = cr_type;

      return TRUE;
    }

  /* There is a .cranges section, but it does not have a descriptor
     matching this address.  */
  return FALSE;

error_return:
  if (cranges_contents != NULL)
    free (cranges_contents);
  return FALSE;
}

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Definition at line 240 of file elf32-sh64-com.c.

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Definition at line 187 of file elf32-sh64-com.c.

{
  asection *cranges;

  /* Fill in the range with the boundaries of the section as a default.  */
  if (bfd_get_flavour (sec->owner) == bfd_target_elf_flavour
      && elf_elfheader (sec->owner)->e_type == ET_EXEC)
    {
      rangep->cr_addr = bfd_get_section_vma (sec->owner, sec);
      rangep->cr_size = sec->size;
      rangep->cr_type = CRT_NONE;
    }
  else
    return FALSE;

  /* If none of the pertinent bits are set, then it's a SHcompact (or at
     least not SHmedia).  */
  if ((elf_section_data (sec)->this_hdr.sh_flags
       & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED)) == 0)
    {
      enum sh64_elf_cr_type cr_type
       = ((bfd_get_section_flags (sec->owner, sec) & SEC_CODE) != 0
          ? CRT_SH5_ISA16 : CRT_DATA);
      rangep->cr_type = cr_type;
      return cr_type;
    }

  /* If only the SHF_SH5_ISA32 bit is set, then we have SHmedia.  */
  if ((elf_section_data (sec)->this_hdr.sh_flags
       & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED)) == SHF_SH5_ISA32)
    {
      rangep->cr_type = CRT_SH5_ISA32;
      return CRT_SH5_ISA32;
    }

  /* Otherwise, we have to look up the .cranges section.  */
  cranges = bfd_get_section_by_name (sec->owner, SH64_CRANGES_SECTION_NAME);

  if (cranges == NULL)
    /* A mixed section but there's no .cranges section.  This is probably
       bad input; it does not comply to specs.  */
    return CRT_NONE;

  /* If this call fails, we will still have CRT_NONE in rangep->cr_type
     and that will be suitable to return.  */
  sh64_address_in_cranges (cranges, addr, rangep);

  return rangep->cr_type;
}

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