Add binutils-2.21.

Use --enable-gold=default for dual linker support.

Change-Id: Id1a744c7db58a0b5e7a3be174cdfa875f2f86e49

1 files changed, 1037 insertions, 0 deletions

diff --git a/binutils-2.21/ld/emultempl/sunos.em b/binutils-2.21/ld/emultempl/sunos.em
new file mode 100644
index 0000000..bbd6075
--- /dev/null
+++ b/binutils-2.21/ld/emultempl/sunos.em
@@ -0,0 +1,1037 @@
+# 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 <<EOF
+/* This file is is generated by a shell script.  DO NOT EDIT! */
+
+/* SunOS emulation code for ${EMULATION_NAME}
+   Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+   2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+   Written by Steve Chamberlain <sac@cygnus.com>
+   SunOS shared library support by Ian Lance Taylor <ian@cygnus.com>
+
+   This file is part of the GNU Binutils.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#define TARGET_IS_${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 <dirent.h>
+#else
+# define dirent direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# 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
+  *" ${EMULATION_NAME} "*)
+fragment <<EOF
+  const char *env;
+
+  env = (const char *) getenv ("LD_LIBRARY_PATH");
+  if (env != NULL)
+    {
+      char *l;
+
+      l = xstrdup (env);
+      while (1)
+	{
+	  char *c;
+
+	  c = strchr (l, ':');
+	  if (c != NULL)
+	    *c++ = '\0';
+	  if (*l != '\0')
+	    ldfile_add_library_path (l, FALSE);
+	  if (c == NULL)
+	    break;
+	  l = c;
+	}
+    }
+EOF
+  ;;
+  esac
+fi
+fragment <<EOF
+}
+
+/* Despite the name, we use this routine to search for dynamic
+   libraries.  On SunOS this requires a directory search.  We need to
+   find the .so file with the highest version number.  The user may
+   restrict the major version by saying, e.g., -lc.1.  Also, if we
+   find a .so file, we need to look for a the same file after
+   replacing .so with .sa; if it exists, it will be an archive which
+   provide some initializations for data symbols, and we need to
+   search it after including the .so file.  */
+
+static void
+gld${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
+  *" ${EMULATION_NAME} "*)
+fragment <<EOF
+      {
+	const char *lib_path;
+
+	lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
+	if (gld${EMULATION_NAME}_search_needed (lib_path, lname))
+	  continue;
+      }
+EOF
+  ;;
+  esac
+fi
+fragment <<EOF
+      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${EMULATION_NAME}_set_need (lang_input_statement_type *inp)
+{
+  if (inp->the_bfd != NULL
+      && (inp->the_bfd->flags & DYNAMIC) != 0)
+    {
+      bfd_size_type c;
+
+      /* To really fill in the .need section contents, we need to know
+	 the final file position of the section, but we don't.
+	 Instead, we use offsets, and rely on the BFD backend to
+	 finish the section up correctly.  FIXME: Talk about lack of
+	 referential locality.  */
+      bfd_put_32 (link_info.output_bfd, need_pnames - need_contents,
+		  need_pinfo);
+      if (! inp->is_archive)
+	{
+	  bfd_put_32 (link_info.output_bfd, (bfd_vma) 0, need_pinfo + 4);
+	  bfd_put_16 (link_info.output_bfd, (bfd_vma) 0, need_pinfo + 8);
+	  bfd_put_16 (link_info.output_bfd, (bfd_vma) 0, need_pinfo + 10);
+	  strcpy ((char *) need_pnames, inp->filename);
+	}
+      else
+	{
+	  char *verstr;
+	  int maj, min;
+
+	  bfd_put_32 (link_info.output_bfd, (bfd_vma) 0x80000000,
+		      need_pinfo + 4);
+	  maj = 0;
+	  min = 0;
+	  verstr = strstr (inp->filename, ".so.");
+	  if (verstr != NULL)
+	    sscanf (verstr, ".so.%d.%d", &maj, &min);
+	  bfd_put_16 (link_info.output_bfd, (bfd_vma) maj, need_pinfo + 8);
+	  bfd_put_16 (link_info.output_bfd, (bfd_vma) min, need_pinfo + 10);
+	  strcpy ((char *) need_pnames, inp->local_sym_name + 2);
+	}
+
+      c = (need_pinfo - need_contents) / NEED_ENTRY_SIZE;
+      if (c + 1 >= need_entries)
+	bfd_put_32 (link_info.output_bfd, (bfd_vma) 0, need_pinfo + 12);
+      else
+	bfd_put_32 (link_info.output_bfd, (bfd_vma) (c + 1) * NEED_ENTRY_SIZE,
+		    need_pinfo + 12);
+
+      need_pinfo += NEED_ENTRY_SIZE;
+      need_pnames += strlen ((char *) need_pnames) + 1;
+    }
+}
+
+static char *
+gld${EMULATION_NAME}_get_script (int *isfile)
+EOF
+
+if test -n "$COMPILE_IN"
+then
+# Scripts compiled in.
+
+# sed commands to quote an ld script as a C string.
+sc="-f stringify.sed"
+
+fragment <<EOF
+{
+  *isfile = 0;
+
+  if (link_info.relocatable && config.build_constructors)
+    return
+EOF
+sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
+echo '  ; else if (link_info.relocatable) return'         >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xr                     >> e${EMULATION_NAME}.c
+echo '  ; else if (!config.text_read_only) return'         >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xbn                    >> e${EMULATION_NAME}.c
+echo '  ; else if (!config.magic_demand_paged) return'     >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.xn                     >> e${EMULATION_NAME}.c
+echo '  ; else return'                                     >> e${EMULATION_NAME}.c
+sed $sc ldscripts/${EMULATION_NAME}.x                      >> e${EMULATION_NAME}.c
+echo '; }'                                                 >> e${EMULATION_NAME}.c
+
+else
+# Scripts read from the filesystem.
+
+fragment <<EOF
+{
+  *isfile = 1;
+
+  if (link_info.relocatable && config.build_constructors)
+    return "ldscripts/${EMULATION_NAME}.xu";
+  else if (link_info.relocatable)
+    return "ldscripts/${EMULATION_NAME}.xr";
+  else if (!config.text_read_only)
+    return "ldscripts/${EMULATION_NAME}.xbn";
+  else if (!config.magic_demand_paged)
+    return "ldscripts/${EMULATION_NAME}.xn";
+  else
+    return "ldscripts/${EMULATION_NAME}.x";
+}
+EOF
+
+fi
+
+fragment <<EOF
+
+struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
+{
+  gld${EMULATION_NAME}_before_parse,
+  syslib_default,
+  hll_default,
+  after_parse_default,
+  gld${EMULATION_NAME}_after_open,
+  after_allocation_default,
+  set_output_arch_default,
+  ldemul_default_target,
+  gld${EMULATION_NAME}_before_allocation,
+  gld${EMULATION_NAME}_get_script,
+  "${EMULATION_NAME}",
+  "${OUTPUT_FORMAT}",
+  finish_default,
+  gld${EMULATION_NAME}_create_output_section_statements,
+  NULL,	/* open dynamic archive */
+  NULL,	/* place orphan */
+  gld${EMULATION_NAME}_set_symbols,
+  NULL,	/* parse args */
+  NULL,	/* add_options */
+  NULL,	/* handle_option */
+  NULL,	/* unrecognized file */
+  NULL,	/* list options */
+  NULL,	/* recognized file */
+  NULL,	/* find_potential_libraries */
+  NULL	/* new_vers_pattern */
+};
+EOF