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cell-binutils  2.17cvs20070401
Classes | Defines | Functions | Variables
aout-adobe.c File Reference
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "aout/adobe.h"
#include "aout/stab_gnu.h"
#include "libaout.h"

Go to the source code of this file.

Classes

struct  bout_data_struct

Defines

#define aout_32_bfd_make_debug_symbol   ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
#define aout_32_bfd_reloc_type_lookup   ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)
#define aout_32_bfd_reloc_name_lookup   ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)
#define aout_32_close_and_cleanup   aout_32_bfd_free_cached_info
#define aout_32_set_arch_mach   aout_adobe_set_arch_mach
#define aout_32_set_section_contents   aout_adobe_set_section_contents
#define aout_32_sizeof_headers   aout_adobe_sizeof_headers
#define aout_32_bfd_get_relocated_section_contents   bfd_generic_get_relocated_section_contents
#define aout_32_get_section_contents_in_window   _bfd_generic_get_section_contents_in_window
#define aout_32_bfd_relax_section   bfd_generic_relax_section
#define aout_32_bfd_gc_sections   bfd_generic_gc_sections
#define aout_32_bfd_merge_sections   bfd_generic_merge_sections
#define aout_32_bfd_is_group_section   bfd_generic_is_group_section
#define aout_32_bfd_discard_group   bfd_generic_discard_group
#define aout_32_section_already_linked   _bfd_generic_section_already_linked
#define aout_32_bfd_link_hash_table_create   _bfd_generic_link_hash_table_create
#define aout_32_bfd_link_hash_table_free   _bfd_generic_link_hash_table_free
#define aout_32_bfd_link_add_symbols   _bfd_generic_link_add_symbols
#define aout_32_bfd_link_just_syms   _bfd_generic_link_just_syms
#define aout_32_bfd_final_link   _bfd_generic_final_link
#define aout_32_bfd_link_split_section   _bfd_generic_link_split_section

Functions

static void aout_adobe_swap_exec_header_in (bfd *abfd, struct external_exec *bytes, struct internal_exec *execp)
static void aout_adobe_swap_exec_header_out (bfd *abfd, struct internal_exec *execp, struct external_exec *bytes)
static const bfd_targetaout_adobe_callback (bfd *abfd)
static const bfd_targetaout_adobe_object_p (bfd *abfd)
static bfd_boolean aout_adobe_mkobject (bfd *abfd)
static void aout_adobe_write_section (bfd *abfd ATTRIBUTE_UNUSED, sec_ptr sect ATTRIBUTE_UNUSED)
static bfd_boolean aout_adobe_write_object_contents (bfd *abfd)
static bfd_boolean aout_adobe_set_section_contents (bfd *abfd, asection *section, const void *location, file_ptr offset, bfd_size_type count)
static bfd_boolean aout_adobe_set_arch_mach (bfd *abfd, enum bfd_architecture arch, unsigned long machine)
static int aout_adobe_sizeof_headers (bfd *ignore_abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info ATTRIBUTE_UNUSED)

Variables

const bfd_target a_out_adobe_vec

Class Documentation

struct bout_data_struct

Definition at line 235 of file aout-adobe.c.


Define Documentation

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#define aout_32_bfd_reloc_name_lookup   ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr)

Definition at line 453 of file aout-adobe.c.

#define aout_32_bfd_reloc_type_lookup   ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr)

Definition at line 452 of file aout-adobe.c.

#define aout_32_close_and_cleanup   aout_32_bfd_free_cached_info

Definition at line 454 of file aout-adobe.c.

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Function Documentation

static const bfd_target* aout_adobe_callback ( bfd abfd) [static]

Definition at line 76 of file aout-adobe.c.

{
  struct internal_exec *execp = exec_hdr (abfd);
  asection *sect;
  struct external_segdesc ext[1];
  char *section_name;
  char try_again[30];       /* Name and number.  */
  char *newname;
  int trynum;
  flagword flags;

  /* Architecture and machine type -- unknown in this format.  */
  bfd_set_arch_mach (abfd, bfd_arch_unknown, 0L);

  /* The positions of the string table and symbol table.  */
  obj_str_filepos (abfd) = N_STROFF (*execp);
  obj_sym_filepos (abfd) = N_SYMOFF (*execp);

  /* Suck up the section information from the file, one section at a time.  */
  for (;;)
    {
      bfd_size_type amt = sizeof (*ext);
      if (bfd_bread ( ext, amt, abfd) != amt)
       {
         if (bfd_get_error () != bfd_error_system_call)
           bfd_set_error (bfd_error_wrong_format);

         return NULL;
       }
      switch (ext->e_type[0])
       {
       case N_TEXT:
         section_name = ".text";
         flags = SEC_CODE | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS;
         break;

       case N_DATA:
         section_name = ".data";
         flags = SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS;
         break;

       case N_BSS:
         section_name = ".bss";
         flags = SEC_DATA | SEC_HAS_CONTENTS;
         break;

       case 0:
         goto no_more_sections;

       default:
         (*_bfd_error_handler)
           (_("%B: Unknown section type in a.out.adobe file: %x\n"),
            abfd, ext->e_type[0]);
         goto no_more_sections;
       }

      /* First one is called ".text" or whatever; subsequent ones are
        ".text1", ".text2", ...  */
      bfd_set_error (bfd_error_no_error);
      sect = bfd_make_section_with_flags (abfd, section_name, flags);
      trynum = 0;

      while (!sect)
       {
         if (bfd_get_error () != bfd_error_no_error)
           /* Some other error -- slide into the sunset.  */
           return NULL;
         sprintf (try_again, "%s%d", section_name, ++trynum);
         sect = bfd_make_section_with_flags (abfd, try_again, flags);
       }

      /* Fix the name, if it is a sprintf'd name.  */
      if (sect->name == try_again)
       {
         amt = strlen (sect->name);
         newname = bfd_zalloc (abfd, amt);
         if (newname == NULL)
           return NULL;
         strcpy (newname, sect->name);
         sect->name = newname;
       }

      /* Assumed big-endian.  */
      sect->size = ((ext->e_size[0] << 8)
                  | ext->e_size[1] << 8
                  | ext->e_size[2]);
      sect->vma = H_GET_32 (abfd, ext->e_virtbase);
      sect->filepos = H_GET_32 (abfd, ext->e_filebase);
      /* FIXME XXX alignment?  */

      /* Set relocation information for first section of each type.  */
      if (trynum == 0)
       switch (ext->e_type[0])
         {
         case N_TEXT:
           sect->rel_filepos = N_TRELOFF (*execp);
           sect->reloc_count = execp->a_trsize;
           break;

         case N_DATA:
           sect->rel_filepos = N_DRELOFF (*execp);
           sect->reloc_count = execp->a_drsize;
           break;

         default:
           break;
         }
    }
 no_more_sections:

  adata (abfd).reloc_entry_size = sizeof (struct reloc_std_external);
  adata (abfd).symbol_entry_size = sizeof (struct external_nlist);
  adata (abfd).page_size = 1; /* Not applicable.  */
  adata (abfd).segment_size = 1; /* Not applicable.  */
  adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;

  return abfd->xvec;
}

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static bfd_boolean aout_adobe_mkobject ( bfd abfd) [static]

Definition at line 242 of file aout-adobe.c.

{
  struct bout_data_struct *rawptr;
  bfd_size_type amt = sizeof (struct bout_data_struct);

  rawptr = bfd_zalloc (abfd, amt);
  if (rawptr == NULL)
    return FALSE;

  abfd->tdata.bout_data = rawptr;
  exec_hdr (abfd) = &rawptr->e;

  adata (abfd).reloc_entry_size = sizeof (struct reloc_std_external);
  adata (abfd).symbol_entry_size = sizeof (struct external_nlist);
  adata (abfd).page_size = 1; /* Not applicable.  */
  adata (abfd).segment_size = 1; /* Not applicable.  */
  adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;

  return TRUE;
}

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static const bfd_target* aout_adobe_object_p ( bfd abfd) [static]

Definition at line 196 of file aout-adobe.c.

{
  struct internal_exec anexec;
  struct external_exec exec_bytes;
  char *targ;
  bfd_size_type amt = EXEC_BYTES_SIZE;

  if (bfd_bread (& exec_bytes, amt, abfd) != amt)
    {
      if (bfd_get_error () != bfd_error_system_call)
       bfd_set_error (bfd_error_wrong_format);
      return NULL;
    }

  anexec.a_info = H_GET_32 (abfd, exec_bytes.e_info);

  /* Normally we just compare for the magic number.
     However, a bunch of Adobe tools aren't fixed up yet; they generate
     files using ZMAGIC(!).
     If the environment variable GNUTARGET is set to "a.out.adobe", we will
     take just about any a.out file as an Adobe a.out file.  FIXME!  */

  if (N_BADMAG (anexec))
    {
      targ = getenv ("GNUTARGET");
      if (targ && !strcmp (targ, a_out_adobe_vec.name))
       /* Just continue anyway, if specifically set to this format.  */
       ;
      else
       {
         bfd_set_error (bfd_error_wrong_format);
         return NULL;
       }
    }

  aout_adobe_swap_exec_header_in (abfd, &exec_bytes, &anexec);
  return aout_32_some_aout_object_p (abfd, &anexec, aout_adobe_callback);
}

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static bfd_boolean aout_adobe_set_arch_mach ( bfd abfd,
enum bfd_architecture  arch,
unsigned long  machine 
) [static]

Definition at line 428 of file aout-adobe.c.

{
  if (! bfd_default_set_arch_mach (abfd, arch, machine))
    return FALSE;

  if (arch == bfd_arch_unknown
      || arch == bfd_arch_m68k)
    return TRUE;

  return FALSE;
}

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static bfd_boolean aout_adobe_set_section_contents ( bfd abfd,
asection section,
const void *  location,
file_ptr  offset,
bfd_size_type  count 
) [static]

Definition at line 368 of file aout-adobe.c.

{
  file_ptr section_start;
  sec_ptr sect;

  /* Set by bfd.c handler.  */
  if (! abfd->output_has_begun)
    {
      /* Assign file offsets to sections.  Text sections are first, and
        are contiguous.  Then data sections.  Everything else at the end.  */
      section_start = N_TXTOFF (ignore<-->me);

      for (sect = abfd->sections; sect; sect = sect->next)
       {
         if (sect->flags & SEC_CODE)
           {
             sect->filepos = section_start;
             /* FIXME:  Round to alignment.  */
             section_start += sect->size;
           }
       }

      for (sect = abfd->sections; sect; sect = sect->next)
       {
         if (sect->flags & SEC_DATA)
           {
             sect->filepos = section_start;
             /* FIXME:  Round to alignment.  */
             section_start += sect->size;
           }
       }

      for (sect = abfd->sections; sect; sect = sect->next)
       {
         if (sect->flags & SEC_HAS_CONTENTS &&
             !(sect->flags & (SEC_CODE | SEC_DATA)))
           {
             sect->filepos = section_start;
             /* FIXME:  Round to alignment.  */
             section_start += sect->size;
           }
       }
    }

  /* Regardless, once we know what we're doing, we might as well get
     going.  */
  if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
    return FALSE;

  if (count == 0)
    return TRUE;

  return bfd_bwrite (location, count, abfd) == count;
}

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static int aout_adobe_sizeof_headers ( bfd *ignore_abfd  ATTRIBUTE_UNUSED,
struct bfd_link_info *info  ATTRIBUTE_UNUSED 
) [static]

Definition at line 443 of file aout-adobe.c.

{
  return sizeof (struct internal_exec);
}
static void aout_adobe_swap_exec_header_in ( bfd abfd,
struct external_exec bytes,
struct internal_exec execp 
) [static]

Definition at line 37 of file aout-adobe.c.

{
  /* Now fill in fields in the execp, from the bytes in the raw data.  */
  execp->a_info   = H_GET_32 (abfd, bytes->e_info);
  execp->a_text   = GET_WORD (abfd, bytes->e_text);
  execp->a_data   = GET_WORD (abfd, bytes->e_data);
  execp->a_bss    = GET_WORD (abfd, bytes->e_bss);
  execp->a_syms   = GET_WORD (abfd, bytes->e_syms);
  execp->a_entry  = GET_WORD (abfd, bytes->e_entry);
  execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
  execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
}

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static void aout_adobe_swap_exec_header_out ( bfd abfd,
struct internal_exec execp,
struct external_exec bytes 
) [static]

Definition at line 56 of file aout-adobe.c.

{
  /* Now fill in fields in the raw data, from the fields in the exec
     struct.  */
  H_PUT_32 (abfd, execp->a_info  , bytes->e_info);
  PUT_WORD (abfd, execp->a_text  , bytes->e_text);
  PUT_WORD (abfd, execp->a_data  , bytes->e_data);
  PUT_WORD (abfd, execp->a_bss   , bytes->e_bss);
  PUT_WORD (abfd, execp->a_syms  , bytes->e_syms);
  PUT_WORD (abfd, execp->a_entry , bytes->e_entry);
  PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize);
  PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
}

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static bfd_boolean aout_adobe_write_object_contents ( bfd abfd) [static]

Definition at line 271 of file aout-adobe.c.

{
  struct external_exec swapped_hdr;
  static struct external_segdesc sentinel[1];    /* Initialized to zero.  */
  asection *sect;
  bfd_size_type amt;

  exec_hdr (abfd)->a_info = ZMAGIC;

  /* Calculate text size as total of text sections, etc.  */
  exec_hdr (abfd)->a_text = 0;
  exec_hdr (abfd)->a_data = 0;
  exec_hdr (abfd)->a_bss  = 0;
  exec_hdr (abfd)->a_trsize = 0;
  exec_hdr (abfd)->a_drsize = 0;

  for (sect = abfd->sections; sect; sect = sect->next)
    {
      if (sect->flags & SEC_CODE)
       {
         exec_hdr (abfd)->a_text += sect->size;
         exec_hdr (abfd)->a_trsize += sect->reloc_count *
           sizeof (struct reloc_std_external);
       }
      else if (sect->flags & SEC_DATA)
       {
         exec_hdr (abfd)->a_data += sect->size;
         exec_hdr (abfd)->a_drsize += sect->reloc_count *
           sizeof (struct reloc_std_external);
       }
      else if (sect->flags & SEC_ALLOC && !(sect->flags & SEC_LOAD))
       exec_hdr (abfd)->a_bss += sect->size;
    }

  exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd)
    * sizeof (struct external_nlist);
  exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);

  aout_adobe_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr);

  amt = EXEC_BYTES_SIZE;
  if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
      || bfd_bwrite (& swapped_hdr, amt, abfd) != amt)
    return FALSE;

  /* Now write out the section information.  Text first, data next, rest
     afterward.  */
  for (sect = abfd->sections; sect; sect = sect->next)
    if (sect->flags & SEC_CODE)
      aout_adobe_write_section (abfd, sect);

  for (sect = abfd->sections; sect; sect = sect->next)
    if (sect->flags & SEC_DATA)
      aout_adobe_write_section (abfd, sect);

  for (sect = abfd->sections; sect; sect = sect->next)
    if (!(sect->flags & (SEC_CODE | SEC_DATA)))
      aout_adobe_write_section (abfd, sect);

  /* Write final `sentinel` section header (with type of 0).  */
  amt = sizeof (*sentinel);
  if (bfd_bwrite (sentinel, amt, abfd) != amt)
    return FALSE;

  /* Now write out reloc info, followed by syms and strings.  */
  if (bfd_get_symcount (abfd) != 0)
    {
      if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (*exec_hdr (abfd))), SEEK_SET)
         != 0)
       return FALSE;

      if (! aout_32_write_syms (abfd))
       return FALSE;

      if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (*exec_hdr (abfd))), SEEK_SET)
         != 0)
       return FALSE;

      for (sect = abfd->sections; sect; sect = sect->next)
       if (sect->flags & SEC_CODE)
         if (!aout_32_squirt_out_relocs (abfd, sect))
           return FALSE;

      if (bfd_seek (abfd, (file_ptr) (N_DRELOFF (*exec_hdr (abfd))), SEEK_SET)
         != 0)
       return FALSE;

      for (sect = abfd->sections; sect; sect = sect->next)
       if (sect->flags & SEC_DATA)
         if (!aout_32_squirt_out_relocs (abfd, sect))
           return FALSE;
    }

  return TRUE;
}

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static void aout_adobe_write_section ( bfd *abfd  ATTRIBUTE_UNUSED,
sec_ptr sect  ATTRIBUTE_UNUSED 
) [static]

Definition at line 264 of file aout-adobe.c.

{
  /* FIXME XXX.  */
}

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Variable Documentation

Definition at line 473 of file aout-adobe.c.