Subversion Repositories openrisc_2011-10-31

# This shell script emits a C file. -*- C -*-

# It does some substitutions.

if [ -z "$MACHINE" ]; then

  OUTPUT_ARCH=${ARCH}

else

  OUTPUT_ARCH=${ARCH}:${MACHINE}

fi

fragment <

/* This file is is generated by a shell script.  DO NOT EDIT! */

/* SunOS emulation code for ${EMULATION_NAME}

   Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,

   2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.

   Written by Steve Chamberlain 

   SunOS shared library support by Ian Lance Taylor 

   This file is part of the GNU Binutils.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

   MA 02110-1301, USA.  */

#define TARGET_IS_${EMULATION_NAME}

#include "sysdep.h"

#include "bfd.h"

#include "bfdlink.h"

#include "libiberty.h"

#include "safe-ctype.h"

#include "ld.h"

#include "ldmain.h"

#include "ldmisc.h"

#include "ldexp.h"

#include "ldlang.h"

#include "ldfile.h"

#include "ldemul.h"

#ifdef HAVE_DIRENT_H

# include 

#else

# define dirent direct

# ifdef HAVE_SYS_NDIR_H

#  include 

# endif

# ifdef HAVE_SYS_DIR_H

#  include 

# endif

# ifdef HAVE_NDIR_H

#  include 

# endif

#endif

static void gld${EMULATION_NAME}_find_so

  (lang_input_statement_type *);

static char *gld${EMULATION_NAME}_search_dir

  (const char *, const char *, bfd_boolean *);

static void gld${EMULATION_NAME}_check_needed

  (lang_input_statement_type *);

static bfd_boolean gld${EMULATION_NAME}_search_needed

  (const char *, const char *);

static bfd_boolean gld${EMULATION_NAME}_try_needed

  (const char *, const char *);

static void gld${EMULATION_NAME}_find_assignment

  (lang_statement_union_type *);

static void gld${EMULATION_NAME}_find_exp_assignment

  (etree_type *);

static void gld${EMULATION_NAME}_count_need

  (lang_input_statement_type *);

static void gld${EMULATION_NAME}_set_need

  (lang_input_statement_type *);

static void

gld${EMULATION_NAME}_before_parse (void)

{

  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);

  config.dynamic_link = TRUE;

  config.has_shared = TRUE;

}

/* This is called after the command line arguments have been parsed,

   but before the linker script has been read.  If this is a native

   linker, we add the directories in LD_LIBRARY_PATH to the search

   list.  */

static void

gld${EMULATION_NAME}_set_symbols (void)

{

EOF

if [ "x${host}" = "x${target}" ] ; then

  case " ${EMULATION_LIBPATH} " in

  *" ${EMULATION_NAME} "*)

fragment <

  const char *env;

  env = (const char *) getenv ("LD_LIBRARY_PATH");

  if (env != NULL)

    {

      char *l;

      l = xstrdup (env);

      while (1)

        {

          char *c;

          c = strchr (l, ':');

          if (c != NULL)

            *c++ = '\0';

          if (*l != '\0')

            ldfile_add_library_path (l, FALSE);

          if (c == NULL)

            break;

          l = c;

        }

    }

EOF

  ;;

  esac

fi

fragment <

}

/* Despite the name, we use this routine to search for dynamic

   libraries.  On SunOS this requires a directory search.  We need to

   find the .so file with the highest version number.  The user may

   restrict the major version by saying, e.g., -lc.1.  Also, if we

   find a .so file, we need to look for a the same file after

   replacing .so with .sa; if it exists, it will be an archive which

   provide some initializations for data symbols, and we need to

   search it after including the .so file.  */

static void

gld${EMULATION_NAME}_create_output_section_statements (void)

{

  lang_for_each_input_file (gld${EMULATION_NAME}_find_so);

}

/* Search the directory for a .so file for each library search.  */

static void

gld${EMULATION_NAME}_find_so (lang_input_statement_type *inp)

{

  search_dirs_type *search;

  char *found = NULL;

  char *alc;

  struct stat st;

  if (! inp->search_dirs_flag

      || ! inp->is_archive

      || ! inp->dynamic)

    return;

  ASSERT (CONST_STRNEQ (inp->local_sym_name, "-l"));

  for (search = search_head; search != NULL; search = search->next)

    {

      bfd_boolean found_static;

      found = gld${EMULATION_NAME}_search_dir (search->name, inp->filename,

                                               &found_static);

      if (found != NULL || found_static)

        break;

    }

  if (found == NULL)

    {

      /* We did not find a matching .so file.  This isn't an error,

         since there might still be a matching .a file, which will be

         found by the usual search.  */

      return;

    }

  /* Replace the filename with the one we have found.  */

  alc = (char *) xmalloc (strlen (search->name) + strlen (found) + 2);

  sprintf (alc, "%s/%s", search->name, found);

  inp->filename = alc;

  /* Turn off the search_dirs_flag to prevent ldfile_open_file from

     searching for this file again.  */

  inp->search_dirs_flag = FALSE;

  free (found);

  /* Now look for the same file name, but with .sa instead of .so.  If

     found, add it to the list of input files.  */

  alc = (char *) xmalloc (strlen (inp->filename) + 1);

  strcpy (alc, inp->filename);

  strstr (alc + strlen (search->name), ".so")[2] = 'a';

  if (stat (alc, &st) != 0)

    free (alc);

  else

    {

      lang_input_statement_type *sa;

      /* Add the .sa file to the statement list just before the .so

         file.  This is really a hack.  */

      sa = ((lang_input_statement_type *)

            xmalloc (sizeof (lang_input_statement_type)));

      *sa = *inp;

      inp->filename = alc;

      inp->local_sym_name = alc;

      inp->header.next = (lang_statement_union_type *) sa;

      inp->next_real_file = (lang_statement_union_type *) sa;

    }

}

/* Search a directory for a .so file.  */

static char *

gld${EMULATION_NAME}_search_dir

  (const char *dirname, const char *filename, bfd_boolean *found_static)

{

  int force_maj, force_min;

  const char *dot;

  unsigned int len;

  char *alc;

  char *found;

  int max_maj, max_min;

  DIR *dir;

  struct dirent *entry;

  unsigned int dirnamelen;

  char *full_path;

  int statval;

  struct stat st;

  *found_static = FALSE;

  force_maj = -1;

  force_min = -1;

  dot = strchr (filename, '.');

  if (dot == NULL)

    {

      len = strlen (filename);

      alc = NULL;

    }

  else

    {

      force_maj = atoi (dot + 1);

      len = dot - filename;

      alc = (char *) xmalloc (len + 1);

      strncpy (alc, filename, len);

      alc[len] = '\0';

      filename = alc;

      dot = strchr (dot + 1, '.');

      if (dot != NULL)

        force_min = atoi (dot + 1);

    }

  found = NULL;

  max_maj = max_min = 0;

  dir = opendir (dirname);

  if (dir == NULL)

    return NULL;

  dirnamelen = strlen (dirname);

  while ((entry = readdir (dir)) != NULL)

    {

      const char *s;

      int found_maj, found_min;

      if (! CONST_STRNEQ (entry->d_name, "lib")

          || strncmp (entry->d_name + 3, filename, len) != 0)

        continue;

      if (dot == NULL

          && strcmp (entry->d_name + 3 + len, ".a") == 0)

        {

          *found_static = TRUE;

          continue;

        }

      /* We accept libfoo.so without a version number, even though the

         native linker does not.  This is more convenient for packages

         which just generate .so files for shared libraries, as on ELF

         systems.  */

      if (! CONST_STRNEQ (entry->d_name + 3 + len, ".so"))

        continue;

      if (entry->d_name[6 + len] == '\0')

        ;

      else if (entry->d_name[6 + len] == '.'

               && ISDIGIT (entry->d_name[7 + len]))

        ;

      else

        continue;

      for (s = entry->d_name + 6 + len; *s != '\0'; s++)

        if (*s != '.' && ! ISDIGIT (*s))

          break;

      if (*s != '\0')

        continue;

      /* We've found a .so file.  Work out the major and minor

         version numbers.  */

      found_maj = 0;

      found_min = 0;

      sscanf (entry->d_name + 3 + len, ".so.%d.%d",

              &found_maj, &found_min);

      if ((force_maj != -1 && force_maj != found_maj)

          || (force_min != -1 && force_min != found_min))

        continue;

      /* Make sure the file really exists (ignore broken symlinks).  */

      full_path = xmalloc (dirnamelen + 1 + strlen (entry->d_name) + 1);

      sprintf (full_path, "%s/%s", dirname, entry->d_name);

      statval = stat (full_path, &st);

      free (full_path);

      if (statval != 0)

        continue;

      /* We've found a match for the name we are searching for.  See

         if this is the version we should use.  If the major and minor

         versions match, we use the last entry in alphabetical order;

         I don't know if this is how SunOS distinguishes libc.so.1.8

         from libc.so.1.8.1, but it ought to suffice.  */

      if (found == NULL

          || (found_maj > max_maj)

          || (found_maj == max_maj

              && (found_min > max_min

                  || (found_min == max_min

                      && strcmp (entry->d_name, found) > 0))))

        {

          if (found != NULL)

            free (found);

          found = (char *) xmalloc (strlen (entry->d_name) + 1);

          strcpy (found, entry->d_name);

          max_maj = found_maj;

          max_min = found_min;

        }

    }

  closedir (dir);

  if (alc != NULL)

    free (alc);

  return found;

}

/* These variables are required to pass information back and forth

   between after_open and check_needed.  */

static struct bfd_link_needed_list *global_needed;

static bfd_boolean global_found;

/* This is called after all the input files have been opened.  */

static void

gld${EMULATION_NAME}_after_open (void)

{

  struct bfd_link_needed_list *needed, *l;

  /* We only need to worry about this when doing a final link.  */

  if (link_info.relocatable || link_info.shared)

    return;

  /* Get the list of files which appear in ld_need entries in dynamic

     objects included in the link.  For each such file, we want to

     track down the corresponding library, and include the symbol

     table in the link.  This is what the runtime dynamic linker will

     do.  Tracking the files down here permits one dynamic object to

     include another without requiring special action by the person

     doing the link.  Note that the needed list can actually grow

     while we are stepping through this loop.  */

  needed = bfd_sunos_get_needed_list (link_info.output_bfd, &link_info);

  for (l = needed; l != NULL; l = l->next)

    {

      struct bfd_link_needed_list *ll;

      const char *lname;

      search_dirs_type *search;

      lname = l->name;

      /* If we've already seen this file, skip it.  */

      for (ll = needed; ll != l; ll = ll->next)

        if (strcmp (ll->name, lname) == 0)

          break;

      if (ll != l)

        continue;

      /* See if this file was included in the link explicitly.  */

      global_needed = l;

      global_found = FALSE;

      lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);

      if (global_found)

        continue;

      if (! CONST_STRNEQ (lname, "-l"))

        {

          bfd *abfd;

          abfd = bfd_openr (lname, bfd_get_target (link_info.output_bfd));

          if (abfd != NULL)

            {

              if (! bfd_check_format (abfd, bfd_object))

                {

                  (void) bfd_close (abfd);

                  abfd = NULL;

                }

            }

          if (abfd != NULL)

            {

              if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)

                {

                  (void) bfd_close (abfd);

                  abfd = NULL;

                }

            }

          if (abfd != NULL)

            {

              /* We've found the needed dynamic object.  */

              if (! bfd_link_add_symbols (abfd, &link_info))

                einfo ("%F%B: could not read symbols: %E\n", abfd);

            }

          else

            {

              einfo ("%P: warning: %s, needed by %B, not found\n",

                     lname, l->by);

            }

          continue;

        }

      lname += 2;

      /* We want to search for the file in the same way that the

         dynamic linker will search.  That means that we want to use

         rpath_link, rpath or -L, then the environment variable

         LD_LIBRARY_PATH (native only), then (if rpath was used) the

         linker script LIB_SEARCH_DIRS.  */

      if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,

                                              lname))

        continue;

      if (command_line.rpath != NULL)

        {

          if (gld${EMULATION_NAME}_search_needed (command_line.rpath, lname))

            continue;

        }

      else

        {

          for (search = search_head; search != NULL; search = search->next)

            if (gld${EMULATION_NAME}_try_needed (search->name, lname))

              break;

          if (search != NULL)

            continue;

        }

EOF

if [ "x${host}" = "x${target}" ] ; then

  case " ${EMULATION_LIBPATH} " in

  *" ${EMULATION_NAME} "*)

fragment <

      {

        const char *lib_path;

        lib_path = (const char *) getenv ("LD_LIBRARY_PATH");

        if (gld${EMULATION_NAME}_search_needed (lib_path, lname))

          continue;

      }

EOF

  ;;

  esac

fi

fragment <

      if (command_line.rpath != NULL)

        {

          for (search = search_head; search != NULL; search = search->next)

            {

              if (search->cmdline)

                continue;

              if (gld${EMULATION_NAME}_try_needed (search->name, lname))

                break;

            }

          if (search != NULL)

            continue;

        }

      einfo ("%P: warning: %s, needed by %B, not found\n",

             l->name, l->by);

    }

}

/* Search for a needed file in a path.  */

static bfd_boolean

gld${EMULATION_NAME}_search_needed (const char *path, const char *name)

{

  const char *s;

  if (path == NULL || *path == '\0')

    return FALSE;

  while (1)

    {

      const char *dir;

      char *dircopy;

      s = strchr (path, ':');

      if (s == NULL)

        {

          dircopy = NULL;

          dir = path;

        }

      else

        {

          dircopy = (char *) xmalloc (s - path + 1);

          memcpy (dircopy, path, s - path);

          dircopy[s - path] = '\0';

          dir = dircopy;

        }

      if (gld${EMULATION_NAME}_try_needed (dir, name))

        return TRUE;

      if (dircopy != NULL)

        free (dircopy);

      if (s == NULL)

        break;

      path = s + 1;

    }

  return FALSE;

}

/* This function is called for each possible directory for a needed

   dynamic object.  */

static bfd_boolean

gld${EMULATION_NAME}_try_needed (const char *dir, const char *name)

{

  char *file;

  char *alc;

  bfd_boolean ignore;

  bfd *abfd;

  file = gld${EMULATION_NAME}_search_dir (dir, name, &ignore);

  if (file == NULL)

    return FALSE;

  alc = (char *) xmalloc (strlen (dir) + strlen (file) + 2);

  sprintf (alc, "%s/%s", dir, file);

  free (file);

  abfd = bfd_openr (alc, bfd_get_target (link_info.output_bfd));

  if (abfd == NULL)

    return FALSE;

  if (! bfd_check_format (abfd, bfd_object))

    {

      (void) bfd_close (abfd);

      return FALSE;

    }

  if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)

    {

      (void) bfd_close (abfd);

      return FALSE;

    }

  /* We've found the needed dynamic object.  */

  /* Add this file into the symbol table.  */

  if (! bfd_link_add_symbols (abfd, &link_info))

    einfo ("%F%B: could not read symbols: %E\n", abfd);

  return TRUE;

}

/* See if we have already included a needed object in the link.  This

   does not have to be precise, as it does no harm to include a

   dynamic object more than once.  */

static void

gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)

{

  if (s->filename == NULL)

    return;

  if (! CONST_STRNEQ (global_needed->name, "-l"))

    {

      if (strcmp (s->filename, global_needed->name) == 0)

        global_found = TRUE;

    }

  else

    {

      const char *sname, *lname;

      const char *sdot, *ldot;

      int lmaj, lmin, smaj, smin;

      lname = global_needed->name + 2;

      sname = strrchr (s->filename, '/');

      if (sname == NULL)

        sname = s->filename;

      else

        ++sname;

      if (! CONST_STRNEQ (sname, "lib"))

        return;

      sname += 3;

      ldot = strchr (lname, '.');

      if (ldot == NULL)

        ldot = lname + strlen (lname);

      sdot = strstr (sname, ".so.");

      if (sdot == NULL)

        return;

      if (sdot - sname != ldot - lname

          || strncmp (lname, sname, sdot - sname) != 0)

        return;

      lmaj = lmin = -1;

      sscanf (ldot, ".%d.%d", &lmaj, &lmin);

      smaj = smin = -1;

      sscanf (sdot, ".so.%d.%d", &smaj, &smin);

      if ((smaj != lmaj && smaj != -1 && lmaj != -1)

          || (smin != lmin && smin != -1 && lmin != -1))

        return;

      global_found = TRUE;

    }

}

/* We need to use static variables to pass information around the call

   to lang_for_each_statement.  Ick.  */

static const char *find_assign;

static bfd_boolean found_assign;

/* We need to use static variables to pass information around the call

   to lang_for_each_input_file.  Ick.  */

static bfd_size_type need_size;

static bfd_size_type need_entries;

static bfd_byte *need_contents;

static bfd_byte *need_pinfo;

static bfd_byte *need_pnames;

/* The size of one entry in the .need section, not including the file

   name.  */

#define NEED_ENTRY_SIZE (16)

/* This is called after the sections have been attached to output

   sections, but before any sizes or addresses have been set.  */

static void

gld${EMULATION_NAME}_before_allocation (void)

{

  struct bfd_link_hash_entry *hdyn = NULL;

  asection *sneed;

  asection *srules;

  asection *sdyn;

  /* The SunOS native linker creates a shared library whenever there

     are any undefined symbols in a link, unless -e is used.  This is

     pretty weird, but we are compatible.  */

  if (! link_info.shared && ! link_info.relocatable && ! entry_from_cmdline)

    {

      struct bfd_link_hash_entry *h;

      for (h = link_info.hash->undefs; h != NULL; h = h->u.undef.next)

        {

          if (h->type == bfd_link_hash_undefined

              && h->u.undef.abfd != NULL

              && (h->u.undef.abfd->flags & DYNAMIC) == 0

              && strcmp (h->root.string, "__DYNAMIC") != 0

              && strcmp (h->root.string, "__GLOBAL_OFFSET_TABLE_") != 0)

            {

              find_assign = h->root.string;

              found_assign = FALSE;

              lang_for_each_statement (gld${EMULATION_NAME}_find_assignment);

              if (! found_assign)

                {

                  link_info.shared = TRUE;

                  break;

                }

            }

        }

    }

  if (link_info.shared)

    {

      lang_output_section_statement_type *os;

      /* Set the .text section to start at 0x20, not 0x2020.  FIXME:

         This is too magical.  */

      os = lang_output_section_statement_lookup (".text", 0, TRUE);

      if (os->addr_tree == NULL)

        os->addr_tree = exp_intop (0x20);

    }

  /* We need to create a __DYNAMIC symbol.  We don't do this in the

     linker script because we want to set the value to the start of

     the dynamic section if there is one, or to zero if there isn't

     one.  We need to create the symbol before calling

     size_dynamic_sections, although we can't set the value until

     afterward.  */

  if (! link_info.relocatable)

    {

      hdyn = bfd_link_hash_lookup (link_info.hash, "__DYNAMIC", TRUE, FALSE,

                                   FALSE);

      if (hdyn == NULL)

        einfo ("%P%F: bfd_link_hash_lookup: %E\n");

      if (! bfd_sunos_record_link_assignment (link_info.output_bfd, &link_info,

                                              "__DYNAMIC"))

        einfo ("%P%F: failed to record assignment to __DYNAMIC: %E\n");

    }

  /* If we are going to make any variable assignments, we need to let

     the backend linker know about them in case the variables are

     referred to by dynamic objects.  */

  lang_for_each_statement (gld${EMULATION_NAME}_find_assignment);

  /* Let the backend linker work out the sizes of any sections

     required by dynamic linking.  */

  if (! bfd_sunos_size_dynamic_sections (link_info.output_bfd, &link_info,

                                         &sdyn, &sneed, &srules))

    einfo ("%P%F: failed to set dynamic section sizes: %E\n");

  if (sneed != NULL)

    {

      /* Set up the .need section.  See the description of the ld_need

         field in include/aout/sun4.h.  */

      need_entries = 0;

      need_size = 0;

      lang_for_each_input_file (gld${EMULATION_NAME}_count_need);

      /* We should only have a .need section if we have at least one

         dynamic object.  */

      ASSERT (need_entries != 0);

      sneed->size = need_size;

      sneed->contents = (bfd_byte *) xmalloc (need_size);

      need_contents = sneed->contents;

      need_pinfo = sneed->contents;

      need_pnames = sneed->contents + need_entries * 16;

      lang_for_each_input_file (gld${EMULATION_NAME}_set_need);

      ASSERT ((bfd_size_type) (need_pnames - sneed->contents) == need_size);

    }

  if (srules != NULL)

    {

      /* Set up the .rules section.  This is just a PATH like string

         of the -L arguments given on the command line.  We permit the

         user to specify the directories using the -rpath command line

         option.  */

      if (command_line.rpath)

        {

          srules->size = strlen (command_line.rpath);

          srules->contents = (bfd_byte *) command_line.rpath;

        }

      else

        {

          unsigned int size;

          search_dirs_type *search;

          size = 0;

          for (search = search_head; search != NULL; search = search->next)

            if (search->cmdline)

              size += strlen (search->name) + 1;

          srules->size = size;

          if (size > 0)

            {

              char *p;

              srules->contents = (bfd_byte *) xmalloc (size);

              p = (char *) srules->contents;

              *p = '\0';

              for (search = search_head; search != NULL; search = search->next)

                {

                  if (search->cmdline)

                    {

                      if (p != (char *) srules->contents)

                        *p++ = ':';

                      strcpy (p, search->name);

                      p += strlen (p);

                    }

                }

            }

        }

    }

  /* We must assign a value to __DYNAMIC.  It should be zero if we are

     not doing a dynamic link, or the start of the .dynamic section if

     we are doing one.  */

  if (! link_info.relocatable)

    {

      hdyn->type = bfd_link_hash_defined;

      hdyn->u.def.value = 0;

      if (sdyn != NULL)

        hdyn->u.def.section = sdyn;

      else

        hdyn->u.def.section = bfd_abs_section_ptr;

    }

  before_allocation_default ();

}

/* This is called by the before_allocation routine via

   lang_for_each_statement.  It does one of two things: if the

   variable find_assign is set, it sets found_assign if it finds an

   assignment to that variable; otherwise it tells the backend linker

   about all assignment statements, in case they are assignments to

   symbols which are referred to by dynamic objects.  */

static void

gld${EMULATION_NAME}_find_assignment (lang_statement_union_type *s)

{

  if (s->header.type == lang_assignment_statement_enum

      && (find_assign == NULL || ! found_assign))

    gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);

}

/* Look through an expression for an assignment statement.  */

static void

gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)

{

  switch (exp->type.node_class)

    {

    case etree_assign:

      if (find_assign != NULL)

        {

          if (strcmp (find_assign, exp->assign.dst) == 0)

            found_assign = TRUE;

          return;

        }

      if (strcmp (exp->assign.dst, ".") != 0)

        {

          if (! bfd_sunos_record_link_assignment (link_info.output_bfd,

                                                  &link_info,

                                                  exp->assign.dst))

            einfo ("%P%F: failed to record assignment to %s: %E\n",

                   exp->assign.dst);

        }

      gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);

      break;

    case etree_binary:

      gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);

      gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);

      break;

    case etree_trinary:

      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);

      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);

      gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);

      break;

    case etree_unary:

      gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);

      break;

    default:

      break;

    }

}

/* Work out the size of the .need section, and the number of entries.

   The backend will set the ld_need field of the dynamic linking

   information to point to the .need section.  See include/aout/sun4.h

   for more information.  */

static void

gld${EMULATION_NAME}_count_need (lang_input_statement_type *inp)

{

  if (inp->the_bfd != NULL

      && (inp->the_bfd->flags & DYNAMIC) != 0)

    {

      ++need_entries;

      need_size += NEED_ENTRY_SIZE;

      if (! inp->is_archive)

        need_size += strlen (inp->filename) + 1;

      else

        {

          ASSERT (inp->local_sym_name[0] == '-'

                  && inp->local_sym_name[1] == 'l');

          need_size += strlen (inp->local_sym_name + 2) + 1;

        }

    }

}

/* Fill in the contents of the .need section.  */

static void

gld${EMULATION_NAME}_set_need (lang_input_statement_type *inp)

{

  if (inp->the_bfd != NULL

      && (inp->the_bfd->flags & DYNAMIC) != 0)

    {

      bfd_size_type c;

      /* To really fill in the .need section contents, we need to know

         the final file position of the section, but we don't.

         Instead, we use offsets, and rely on the BFD backend to

         finish the section up correctly.  FIXME: Talk about lack of

         referential locality.  */

      bfd_put_32 (link_info.output_bfd, need_pnames - need_contents,

                  need_pinfo);

      if (! inp->is_archive)

        {

          bfd_put_32 (link_info.output_bfd, (bfd_vma) 0, need_pinfo + 4);

          bfd_put_16 (link_info.output_bfd, (bfd_vma) 0, need_pinfo + 8);

          bfd_put_16 (link_info.output_bfd, (bfd_vma) 0, need_pinfo + 10);

          strcpy ((char *) need_pnames, inp->filename);

        }

      else

        {

          char *verstr;

          int maj, min;

          bfd_put_32 (link_info.output_bfd, (bfd_vma) 0x80000000,

                      need_pinfo + 4);

          maj = 0;

          min = 0;

          verstr = strstr (inp->filename, ".so.");

          if (verstr != NULL)