Add binutils-2.21.

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

Change-Id: Id1a744c7db58a0b5e7a3be174cdfa875f2f86e49

1 files changed, 1472 insertions, 0 deletions

diff --git a/binutils-2.21/ld/emultempl/aix.em b/binutils-2.21/ld/emultempl/aix.em
new file mode 100644
index 0000000..4dc36c3
--- /dev/null
+++ b/binutils-2.21/ld/emultempl/aix.em
@@ -0,0 +1,1472 @@
+# 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! */
+
+/* AIX emulation code for ${EMULATION_NAME}
+   Copyright 1991, 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+   2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
+   Written by Steve Chamberlain <sac@cygnus.com>
+   AIX support by Ian Lance Taylor <ian@cygnus.com>
+   AIX 64 bit support by Tom Rix <trix@redhat.com>
+
+   This file is part of the GNU Binutils.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+#define TARGET_IS_${EMULATION_NAME}
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libiberty.h"
+#include "safe-ctype.h"
+#include "getopt.h"
+#include "obstack.h"
+#include "bfdlink.h"
+
+#include "ld.h"
+#include "ldmain.h"
+#include "ldmisc.h"
+#include "ldexp.h"
+#include "ldlang.h"
+#include "ldfile.h"
+#include "ldemul.h"
+#include "ldctor.h"
+#include <ldgram.h>
+
+#include "coff/internal.h"
+#include "coff/xcoff.h"
+#include "libcoff.h"
+#include "libxcoff.h"
+
+static void gld${EMULATION_NAME}_read_file (const char *, bfd_boolean);
+static void gld${EMULATION_NAME}_free (void *);
+static void gld${EMULATION_NAME}_find_relocs (lang_statement_union_type *);
+static void gld${EMULATION_NAME}_find_exp_assignment (etree_type *);
+
+
+/* The file alignment required for each section.  */
+static unsigned long file_align;
+
+/* The maximum size the stack is permitted to grow.  This is stored in
+   the a.out header.  */
+static unsigned long maxstack;
+
+/* The maximum data size.  This is stored in the a.out header.  */
+static unsigned long maxdata;
+
+/* Whether to perform garbage collection.  */
+static int gc = 1;
+
+/* The module type to use.  */
+static unsigned short modtype = ('1' << 8) | 'L';
+
+/* Whether the .text section must be read-only (i.e., no relocs
+   permitted).  */
+static int textro;
+
+/* A mask of XCOFF_EXPALL and XCOFF_EXPFULL flags, as set by their
+   associated -b and -bno options.  */
+static unsigned int auto_export_flags;
+
+/* A mask of auto_export_flags bits that were explicitly set on the
+   command line.  */
+static unsigned int explicit_auto_export_flags;
+
+/* Whether to implement Unix like linker semantics.  */
+static int unix_ld;
+
+/* Structure used to hold import file list.  */
+
+struct filelist
+{
+  struct filelist *next;
+  const char *name;
+};
+
+/* List of import files.  */
+static struct filelist *import_files;
+
+/* List of export symbols read from the export files.  */
+
+struct export_symbol_list
+{
+  struct export_symbol_list *next;
+  const char *name;
+};
+
+static struct export_symbol_list *export_symbols;
+
+/* Maintains the 32 or 64 bit mode state of import file */
+static unsigned int symbol_mode = 0x04;
+
+/* Which symbol modes are valid */
+static unsigned int symbol_mode_mask = 0x0d;
+
+/* Whether this is a 64 bit link */
+static int is_64bit = 0;
+
+/* Which syscalls from import file are valid */
+static unsigned int syscall_mask = 0x77;
+
+/* fake file for -binitfini support */
+static lang_input_statement_type *initfini_file;
+
+/* Whether to do run time linking
+   -brtl enables, -bnortl and -bnortllib disable. */
+static int rtld;
+
+/* Explicit command line library path, -blibpath */
+static char *command_line_blibpath = NULL;
+
+/* This routine is called before anything else is done.  */
+
+static void
+gld${EMULATION_NAME}_before_parse (void)
+{
+  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
+
+  config.dynamic_link = TRUE;
+  config.has_shared = TRUE;
+
+  /* The link_info.[init|fini]_functions are initialized in ld/lexsup.c.
+     Override them here so we can use the link_info.init_function as a
+     state flag that lets the backend know that -binitfini has been done.  */
+
+  link_info.init_function = NULL;
+  link_info.fini_function = NULL;
+}
+
+/* Handle AIX specific options.  */
+
+enum
+  {
+    OPTION_IGNORE = 300,
+    OPTION_AUTOIMP,
+    OPTION_ERNOTOK,
+    OPTION_EROK,
+    OPTION_EXPALL,
+    OPTION_EXPFULL,
+    OPTION_EXPORT,
+    OPTION_IMPORT,
+    OPTION_INITFINI,
+    OPTION_LOADMAP,
+    OPTION_MAXDATA,
+    OPTION_MAXSTACK,
+    OPTION_MODTYPE,
+    OPTION_NOAUTOIMP,
+    OPTION_NOEXPALL,
+    OPTION_NOEXPFULL,
+    OPTION_NOSTRCMPCT,
+    OPTION_PD,
+    OPTION_PT,
+    OPTION_STRCMPCT,
+    OPTION_UNIX,
+    OPTION_32,
+    OPTION_64,
+    OPTION_LIBPATH,
+    OPTION_NOLIBPATH,
+  };
+
+static void
+gld${EMULATION_NAME}_add_options
+  (int ns, char **shortopts, int nl, struct option **longopts,
+   int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
+{
+  static const char xtra_short[] = "D:H:KT:z";
+  static const struct option xtra_long[] = {
+  /* -binitfini has special handling in the linker backend.  The native linker
+     uses the arguemnts to generate a table of init and fini functions for
+     the executable.  The important use for this option is to support aix 4.2+
+     c++ constructors and destructors.  This is tied into gcc via collect2.c.
+
+     The function table is accessed by the runtime linker/loader by checking if
+     the first symbol in the loader symbol table is __rtinit.  The gnu linker
+     generates this symbol and makes it the first loader symbol.  */
+
+    {"basis", no_argument, NULL, OPTION_IGNORE},
+    {"bautoimp", no_argument, NULL, OPTION_AUTOIMP},
+    {"bcomprld", no_argument, NULL, OPTION_IGNORE},
+    {"bcrld", no_argument, NULL, OPTION_IGNORE},
+    {"bcror31", no_argument, NULL, OPTION_IGNORE},
+    {"bD", required_argument, NULL, OPTION_MAXDATA},
+    {"bE", required_argument, NULL, OPTION_EXPORT},
+    {"bernotok", no_argument, NULL, OPTION_ERNOTOK},
+    {"berok", no_argument, NULL, OPTION_EROK},
+    {"berrmsg", no_argument, NULL, OPTION_IGNORE},
+    {"bexpall", no_argument, NULL, OPTION_EXPALL},
+    {"bexpfull", no_argument, NULL, OPTION_EXPFULL},
+    {"bexport", required_argument, NULL, OPTION_EXPORT},
+    {"bf", no_argument, NULL, OPTION_ERNOTOK},
+    {"bgc", no_argument, &gc, 1},
+    {"bh", required_argument, NULL, OPTION_IGNORE},
+    {"bhalt", required_argument, NULL, OPTION_IGNORE},
+    {"bI", required_argument, NULL, OPTION_IMPORT},
+    {"bimport", required_argument, NULL, OPTION_IMPORT},
+    {"binitfini", required_argument, NULL, OPTION_INITFINI},
+    {"bl", required_argument, NULL, OPTION_LOADMAP},
+    {"bloadmap", required_argument, NULL, OPTION_LOADMAP},
+    {"bmaxdata", required_argument, NULL, OPTION_MAXDATA},
+    {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK},
+    {"bM", required_argument, NULL, OPTION_MODTYPE},
+    {"bmodtype", required_argument, NULL, OPTION_MODTYPE},
+    {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP},
+    {"bnoexpall", no_argument, NULL, OPTION_NOEXPALL},
+    {"bnoexpfull", no_argument, NULL, OPTION_NOEXPFULL},
+    {"bnodelcsect", no_argument, NULL, OPTION_IGNORE},
+    {"bnoentry", no_argument, NULL, OPTION_IGNORE},
+    {"bnogc", no_argument, &gc, 0},
+    {"bnso", no_argument, NULL, OPTION_NOAUTOIMP},
+    {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT},
+    {"bnotextro", no_argument, &textro, 0},
+    {"bnro", no_argument, &textro, 0},
+    {"bpD", required_argument, NULL, OPTION_PD},
+    {"bpT", required_argument, NULL, OPTION_PT},
+    {"bro", no_argument, &textro, 1},
+    {"brtl", no_argument, &rtld, 1},
+    {"bnortl", no_argument, &rtld, 0},
+    {"bnortllib", no_argument, &rtld, 0},
+    {"bS", required_argument, NULL, OPTION_MAXSTACK},
+    {"bso", no_argument, NULL, OPTION_AUTOIMP},
+    {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT},
+    {"btextro", no_argument, &textro, 1},
+    {"b32", no_argument, NULL, OPTION_32},
+    {"b64", no_argument, NULL, OPTION_64},
+    {"static", no_argument, NULL, OPTION_NOAUTOIMP},
+    {"unix", no_argument, NULL, OPTION_UNIX},
+    {"blibpath", required_argument, NULL, OPTION_LIBPATH},
+    {"bnolibpath", required_argument, NULL, OPTION_NOLIBPATH},
+    {NULL, no_argument, NULL, 0}
+  };
+
+  /* Options supported by the AIX linker which we do not support: -f,
+     -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps,
+     -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl,
+     -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl,
+     -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink,
+     -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder,
+     -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk,
+     -bx, -bX, -bxref.  */
+
+  *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
+  memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
+  *longopts = xrealloc (*longopts,
+			nl * sizeof (struct option) + sizeof (xtra_long));
+  memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
+}
+
+static bfd_boolean
+gld${EMULATION_NAME}_parse_args (int argc, char **argv)
+{
+  int indx;
+
+  /* If the current option starts with -b, change the first : to an =.
+     The AIX linker uses : to separate the option from the argument;
+     changing it to = lets us treat it as a getopt option.  */
+  indx = optind;
+  if (indx == 0)
+    indx = 1;
+
+  if (indx < argc && CONST_STRNEQ (argv[indx], "-b"))
+    {
+      char *s;
+
+      for (s = argv[indx]; *s != '\0'; s++)
+	{
+	  if (*s == ':')
+	    {
+	      *s = '=';
+	      break;
+	    }
+	}
+    }
+  return FALSE;
+}
+
+static bfd_boolean
+gld${EMULATION_NAME}_handle_option (int optc)
+{
+  bfd_signed_vma val;
+  const char *end;
+
+  switch (optc)
+    {
+    default:
+      return FALSE;
+
+    case 0:
+      /* Long option which just sets a flag.  */
+      break;
+
+    case 'D':
+      val = bfd_scan_vma (optarg, &end, 0);
+      if (*end != '\0')
+	einfo ("%P: warning: ignoring invalid -D number %s\n", optarg);
+      else if (val != -1)
+	lang_section_start (".data", exp_intop (val), NULL);
+      break;
+
+    case 'H':
+      val = bfd_scan_vma (optarg, &end, 0);
+      if (*end != '\0' || (val & (val - 1)) != 0)
+	einfo ("%P: warning: ignoring invalid -H number %s\n", optarg);
+      else
+	file_align = val;
+      break;
+
+    case 'K':
+    case 'z':
+      /* FIXME: This should use the page size for the target system.  */
+      file_align = 4096;
+      break;
+
+    case 'T':
+      /* On AIX this is the same as GNU ld -Ttext.  When we see -T
+	 number, we assume the AIX option is intended.  Otherwise, we
+	 assume the usual GNU ld -T option is intended.  We can't just
+	 ignore the AIX option, because gcc passes it to the linker.  */
+      val = bfd_scan_vma (optarg, &end, 0);
+      if (*end != '\0')
+	return FALSE;
+      lang_section_start (".text", exp_intop (val), NULL);
+      break;
+
+    case OPTION_IGNORE:
+      break;
+
+    case OPTION_INITFINI:
+      {
+	/*
+	 * The aix linker init fini has the format :
+	 *
+	 * -binitfini:[ Initial][:Termination][:Priority]
+	 *
+	 * it allows the Termination and Priority to be optional.
+	 *
+	 * Since we support only one init/fini pair, we ignore the Priority.
+	 *
+	 * Define the special symbol __rtinit.
+	 *
+	 * strtok does not correctly handle the case of -binitfini::fini: so
+	 * do it by hand
+	 */
+	char *t, *i, *f;
+
+	i = t = optarg;
+	while (*t && ':' != *t)
+	  t++;
+	if (*t)
+	  *t++ = 0;
+
+	if (0 != strlen (i))
+	  link_info.init_function = i;
+
+	f = t;
+	while (*t && ':' != *t)
+	  t++;
+	*t = 0;
+
+	if (0 != strlen (f))
+	  link_info.fini_function = f;
+      }
+      break;
+
+    case OPTION_AUTOIMP:
+      link_info.static_link = FALSE;
+      break;
+
+    case OPTION_ERNOTOK:
+      link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
+      link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
+      break;
+
+    case OPTION_EROK:
+      link_info.unresolved_syms_in_objects = RM_IGNORE;
+      link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
+      break;
+
+    case OPTION_EXPALL:
+      auto_export_flags |= XCOFF_EXPALL;
+      explicit_auto_export_flags |= XCOFF_EXPALL;
+      break;
+
+    case OPTION_EXPFULL:
+      auto_export_flags |= XCOFF_EXPFULL;
+      explicit_auto_export_flags |= XCOFF_EXPFULL;
+      break;
+
+    case OPTION_EXPORT:
+      gld${EMULATION_NAME}_read_file (optarg, FALSE);
+      break;
+
+    case OPTION_IMPORT:
+      {
+	struct filelist *n;
+	struct filelist **flpp;
+
+	n = (struct filelist *) xmalloc (sizeof (struct filelist));
+	n->next = NULL;
+	n->name = optarg;
+	flpp = &import_files;
+	while (*flpp != NULL)
+	  flpp = &(*flpp)->next;
+	*flpp = n;
+      }
+      break;
+
+    case OPTION_LOADMAP:
+      config.map_filename = optarg;
+      break;
+
+    case OPTION_MAXDATA:
+      val = bfd_scan_vma (optarg, &end, 0);
+      if (*end != '\0')
+	einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n", optarg);
+      else
+	maxdata = val;
+      break;
+
+    case OPTION_MAXSTACK:
+      val = bfd_scan_vma (optarg, &end, 0);
+      if (*end != '\0')
+	einfo ("%P: warning: ignoring invalid -bmaxstack number %s\n",
+	       optarg);
+      else
+	maxstack = val;
+      break;
+
+    case OPTION_MODTYPE:
+      if (*optarg == 'S')
+	{
+	  link_info.shared = TRUE;
+	  ++optarg;
+	}
+      if (*optarg == '\0' || optarg[1] == '\0')
+	einfo ("%P: warning: ignoring invalid module type %s\n", optarg);
+      else
+	modtype = (*optarg << 8) | optarg[1];
+      break;
+
+    case OPTION_NOAUTOIMP:
+      link_info.static_link = TRUE;
+      break;
+
+    case OPTION_NOEXPALL:
+      auto_export_flags &= ~XCOFF_EXPALL;
+      explicit_auto_export_flags |= XCOFF_EXPALL;
+      break;
+
+    case OPTION_NOEXPFULL:
+      auto_export_flags &= ~XCOFF_EXPFULL;
+      explicit_auto_export_flags |= XCOFF_EXPFULL;
+      break;
+
+    case OPTION_NOSTRCMPCT:
+      link_info.traditional_format = TRUE;
+      break;
+
+    case OPTION_PD:
+      /* This sets the page that the .data section is supposed to
+	 start on.  The offset within the page should still be the
+	 offset within the file, so we need to build an appropriate
+	 expression.  */
+      val = bfd_scan_vma (optarg, &end, 0);
+      if (*end != '\0')
+	einfo ("%P: warning: ignoring invalid -pD number %s\n", optarg);
+      else
+	{
+	  etree_type *t;
+
+	  t = exp_binop ('+',
+			 exp_intop (val),
+			 exp_binop ('&',
+				    exp_nameop (NAME, "."),
+				    exp_intop (0xfff)));
+	  t = exp_binop ('&',
+			 exp_binop ('+', t, exp_intop (31)),
+			 exp_intop (~(bfd_vma) 31));
+	  lang_section_start (".data", t, NULL);
+	}
+      break;
+
+    case OPTION_PT:
+      /* This set the page that the .text section is supposed to start
+	 on.  The offset within the page should still be the offset
+	 within the file.  */
+      val = bfd_scan_vma (optarg, &end, 0);
+      if (*end != '\0')
+	einfo ("%P: warning: ignoring invalid -pT number %s\n", optarg);
+      else
+	{
+	  etree_type *t;
+
+	  t = exp_binop ('+',
+			 exp_intop (val),
+			 exp_nameop (SIZEOF_HEADERS, NULL));
+	  t = exp_binop ('&',
+			 exp_binop ('+', t, exp_intop (31)),
+			 exp_intop (~(bfd_vma) 31));
+	  lang_section_start (".text", t, NULL);
+	}
+      break;
+
+    case OPTION_STRCMPCT:
+      link_info.traditional_format = FALSE;
+      break;
+
+    case OPTION_UNIX:
+      unix_ld = TRUE;
+      break;
+
+    case OPTION_32:
+      is_64bit = 0;
+      syscall_mask = 0x77;
+      symbol_mode_mask = 0x0d;
+      break;
+
+    case OPTION_64:
+      is_64bit = 1;
+      syscall_mask = 0xcc;
+      symbol_mode_mask = 0x0e;
+      break;
+
+    case OPTION_LIBPATH:
+      command_line_blibpath = optarg;
+      break;
+
+    case OPTION_NOLIBPATH:
+      command_line_blibpath = NULL;
+      break;
+
+    }
+
+  return TRUE;
+}
+
+/* This is called when an input file can not be recognized as a BFD
+   object or an archive.  If the file starts with #!, we must treat it
+   as an import file.  This is for AIX compatibility.  */
+
+static bfd_boolean
+gld${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry)
+{
+  FILE *e;
+  bfd_boolean ret;
+
+  e = fopen (entry->filename, FOPEN_RT);
+  if (e == NULL)
+    return FALSE;
+
+  ret = FALSE;
+
+  if (getc (e) == '#' && getc (e) == '!')
+    {
+      struct filelist *n;
+      struct filelist **flpp;
+
+      n = (struct filelist *) xmalloc (sizeof (struct filelist));
+      n->next = NULL;
+      n->name = entry->filename;
+      flpp = &import_files;
+      while (*flpp != NULL)
+	flpp = &(*flpp)->next;
+      *flpp = n;
+
+      ret = TRUE;
+      entry->loaded = TRUE;
+    }
+
+  fclose (e);
+
+  return ret;
+}
+
+/* This is called after the input files have been opened.  */
+
+static void
+gld${EMULATION_NAME}_after_open (void)
+{
+  bfd_boolean r;
+  struct set_info *p;
+
+  /* Call ldctor_build_sets, after pretending that this is a
+     relocatable link.  We do this because AIX requires relocation
+     entries for all references to symbols, even in a final
+     executable.  Of course, we only want to do this if we are
+     producing an XCOFF output file.  */
+  r = link_info.relocatable;
+  if (strstr (bfd_get_target (link_info.output_bfd), "xcoff") != NULL)
+    link_info.relocatable = TRUE;
+  ldctor_build_sets ();
+  link_info.relocatable = r;
+
+  /* For each set, record the size, so that the XCOFF backend can
+     output the correct csect length.  */
+  for (p = sets; p != (struct set_info *) NULL; p = p->next)
+    {
+      bfd_size_type size;
+
+      /* If the symbol is defined, we may have been invoked from
+	 collect, and the sets may already have been built, so we do
+	 not do anything.  */
+      if (p->h->type == bfd_link_hash_defined
+	  || p->h->type == bfd_link_hash_defweak)
+	continue;
+
+      if (p->reloc != BFD_RELOC_CTOR)
+	{
+	  /* Handle this if we need to.  */
+	  abort ();
+	}
+
+      size = (p->count + 2) * 4;
+      if (!bfd_xcoff_link_record_set (link_info.output_bfd, &link_info,
+				      p->h, size))
+	einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n");
+    }
+}
+
+/* This is called after the sections have been attached to output
+   sections, but before any sizes or addresses have been set.  */
+
+static void
+gld${EMULATION_NAME}_before_allocation (void)
+{
+  struct filelist *fl;
+  struct export_symbol_list *el;
+  char *libpath;
+  asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS];
+  static const char *const must_keep_sections[] = {
+    ".text",
+    ".data",
+    ".bss"
+  };
+  unsigned int i, flags;
+
+  /* Handle the import and export files, if any.  */
+  for (fl = import_files; fl != NULL; fl = fl->next)
+    gld${EMULATION_NAME}_read_file (fl->name, TRUE);
+  for (el = export_symbols; el != NULL; el = el->next)
+    {
+      struct bfd_link_hash_entry *h;
+
+      h = bfd_link_hash_lookup (link_info.hash, el->name, FALSE, FALSE, FALSE);
+      if (h == NULL)
+	einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n");
+      if (!bfd_xcoff_export_symbol (link_info.output_bfd, &link_info, h))
+	einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n");
+    }
+
+  /* Track down all relocations called for by the linker script (these
+     are typically constructor/destructor entries created by
+     CONSTRUCTORS) and let the backend know it will need to create
+     .loader relocs for them.  */
+  lang_for_each_statement (gld${EMULATION_NAME}_find_relocs);
+
+  /* Precedence of LIBPATH
+     -blibpath:	 native support always first
+     -rpath:	 gnu extension
+     -L		 build from command line -L's */
+  if (command_line_blibpath != NULL)
+    libpath = command_line_blibpath;
+  else if (command_line.rpath != NULL)
+    libpath = command_line.rpath;
+  else if (search_head == NULL)
+    libpath = (char *) "";
+  else
+    {
+      size_t len;
+      search_dirs_type *search;
+
+      /* PR ld/4023: Strip sysroot prefix from any paths
+	 being inserted into the output binary's DT_RPATH.  */
+      if (ld_sysroot != NULL
+	  && * ld_sysroot != 0)
+	{
+	  const char * name = search_head->name;
+	  size_t ld_sysroot_len = strlen (ld_sysroot);
+
+	  if (strncmp (name, ld_sysroot, ld_sysroot_len) == 0)
+	    name += ld_sysroot_len;
+
+	  len = strlen (name);
+	  libpath = xmalloc (len + 1);
+	  strcpy (libpath, name);
+
+	  for (search = search_head->next; search != NULL; search = search->next)
+	    {
+	      size_t nlen;
+
+	      name = search->name;
+	      if (strncmp (name, ld_sysroot, ld_sysroot_len) == 0)
+		name += ld_sysroot_len;
+
+	      nlen = strlen (name);
+	      libpath = xrealloc (libpath, len + nlen + 2);
+	      libpath[len] = ':';
+	      strcpy (libpath + len + 1, name);
+	      len += nlen + 1;
+	    }
+	}
+      else
+	{
+	  len = strlen (search_head->name);
+	  libpath = xmalloc (len + 1);
+	  strcpy (libpath, search_head->name);
+
+	  for (search = search_head->next; search != NULL; search = search->next)
+	    {
+	      size_t nlen;
+
+	      nlen = strlen (search->name);
+	      libpath = xrealloc (libpath, len + nlen + 2);
+	      libpath[len] = ':';
+	      strcpy (libpath + len + 1, search->name);
+	      len += nlen + 1;
+	    }
+	}
+    }
+
+  /* Default to -bexpfull for SVR4-like semantics.  */
+  flags = (unix_ld ? XCOFF_EXPFULL : 0);
+  flags &= ~explicit_auto_export_flags;
+  flags |= auto_export_flags;
+
+  /* Let the XCOFF backend set up the .loader section.  */
+  if (!bfd_xcoff_size_dynamic_sections
+      (link_info.output_bfd, &link_info, libpath, entry_symbol.name, file_align,
+       maxstack, maxdata, gc && !unix_ld ? TRUE : FALSE,
+       modtype, textro ? TRUE : FALSE, flags, special_sections,
+       rtld ? TRUE : FALSE))
+    einfo ("%P%F: failed to set dynamic section sizes: %E\n");
+
+  /* Look through the special sections, and put them in the right
+     place in the link ordering.  This is especially magic.  */
+  for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++)
+    {
+      asection *sec;
+      lang_output_section_statement_type *os;
+      lang_statement_union_type **pls;
+      lang_input_section_type *is;
+      const char *oname;
+      bfd_boolean start;
+
+      sec = special_sections[i];
+      if (sec == NULL)
+	continue;
+
+      /* Remove this section from the list of the output section.
+	 This assumes we know what the script looks like.  */
+      is = NULL;
+      os = lang_output_section_find (sec->output_section->name);
+      if (os == NULL)
+	einfo ("%P%F: can't find output section %s\n",
+	       sec->output_section->name);
+
+      for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->header.next)
+	{
+	  if ((*pls)->header.type == lang_input_section_enum
+	      && (*pls)->input_section.section == sec)
+	    {
+	      is = (lang_input_section_type *) * pls;
+	      *pls = (*pls)->header.next;
+	      break;
+	    }
+
+	  if ((*pls)->header.type == lang_wild_statement_enum)
+	    {
+	      lang_statement_union_type **pwls;
+
+	      for (pwls = &(*pls)->wild_statement.children.head;
+		   *pwls != NULL; pwls = &(*pwls)->header.next)
+		{
+
+		  if ((*pwls)->header.type == lang_input_section_enum
+		      && (*pwls)->input_section.section == sec)
+		    {
+		      is = (lang_input_section_type *) * pwls;
+		      *pwls = (*pwls)->header.next;
+		      break;
+		    }
+		}
+
+	      if (is != NULL)
+		break;
+	    }
+	}
+
+      if (is == NULL)
+	{
+	  einfo ("%P%F: can't find %s in output section\n",
+		 bfd_get_section_name (sec->owner, sec));
+	}
+
+      /* Now figure out where the section should go.  */
+      switch (i)
+	{
+
+	default:		/* to avoid warnings */
+	case XCOFF_SPECIAL_SECTION_TEXT:
+	  /* _text */
+	  oname = ".text";
+	  start = TRUE;
+	  break;
+
+	case XCOFF_SPECIAL_SECTION_ETEXT:
+	  /* _etext */
+	  oname = ".text";
+	  start = FALSE;
+	  break;
+
+	case XCOFF_SPECIAL_SECTION_DATA:
+	  /* _data */
+	  oname = ".data";
+	  start = TRUE;
+	  break;
+
+	case XCOFF_SPECIAL_SECTION_EDATA:
+	  /* _edata */
+	  oname = ".data";
+	  start = FALSE;
+	  break;
+
+	case XCOFF_SPECIAL_SECTION_END:
+	case XCOFF_SPECIAL_SECTION_END2:
+	  /* _end and end */
+	  oname = ".bss";
+	  start = FALSE;
+	  break;
+	}
+
+      os = lang_output_section_find (oname);
+
+      if (start)
+	{
+	  is->header.next = os->children.head;
+	  os->children.head = (lang_statement_union_type *) is;
+	}
+      else
+	{
+	  is->header.next = NULL;
+	  lang_statement_append (&os->children,
+				 (lang_statement_union_type *) is,
+				 &is->header.next);
+	}
+    }
+
+  /* Executables and shared objects must always have .text, .data
+     and .bss output sections, so that the header can refer to them.
+     The kernel refuses to load objects that have missing sections.  */
+  if (!link_info.relocatable)
+    for (i = 0; i < ARRAY_SIZE (must_keep_sections); i++)
+      {
+	asection *sec;
+
+	sec = bfd_get_section_by_name (link_info.output_bfd,
+				       must_keep_sections[i]);
+	if (sec == NULL)
+	  einfo ("%P: can't find required output section %s\n", must_keep_sections[i]);
+	else
+	  sec->flags |= SEC_KEEP;
+      }
+
+  before_allocation_default ();
+}
+
+static char *
+gld${EMULATION_NAME}_choose_target (int argc, char **argv)
+{
+  int i, j, jmax;
+  static char *from_outside;
+  static char *from_inside;
+  static char *argv_to_target[][2] = {
+    {NULL,   "${OUTPUT_FORMAT}"},
+    {"-b32", "${OUTPUT_FORMAT_32BIT}"},
+    {"-b64", "${OUTPUT_FORMAT_64BIT}"},
+  };
+
+  jmax = 3;
+
+  from_outside = getenv (TARGET_ENVIRON);
+  if (from_outside != (char *) NULL)
+    return from_outside;
+
+  /* Set to default. */
+  from_inside = argv_to_target[0][1];
+  for (i = 1; i < argc; i++)
+    {
+      for (j = 1; j < jmax; j++)
+	{
+	  if (0 == strcmp (argv[i], argv_to_target[j][0]))
+	    from_inside = argv_to_target[j][1];
+	}
+    }
+
+  return from_inside;
+}
+
+/* Returns
+   1 : state changed
+   0 : no change */
+static int
+change_symbol_mode (char *input)
+{
+  char *symbol_mode_string[] = {
+    "# 32",			/* 0x01 */
+    "# 64",			/* 0x02 */
+    "# no32",			/* 0x04 */
+    "# no64",			/* 0x08 */
+    NULL,
+  };
+
+  unsigned int bit;
+  char *string;
+
+  for (bit = 0;; bit++)
+    {
+      string = symbol_mode_string[bit];
+      if (string == NULL)
+	return 0;
+
+      if (0 == strcmp (input, string))
+	{
+	  symbol_mode = (1 << bit);
+	  return 1;
+	}
+    }
+  /* should not be here */
+  return 0;
+}
+
+/* Returns
+   1 : yes
+   0 : ignore
+   -1 : error, try something else */
+static int
+is_syscall (char *input, unsigned int *flag)
+{
+  unsigned int bit;
+  char *string;
+
+  struct sc {
+    char *syscall_string;
+    unsigned int flag;
+  } s [] = {
+    { "svc"	    /* 0x01 */, XCOFF_SYSCALL32 },
+    { "svc32"	    /* 0x02 */, XCOFF_SYSCALL32 },
+    { "svc3264"     /* 0x04 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 },
+    { "svc64"	    /* 0x08 */, XCOFF_SYSCALL64 },
+    { "syscall"     /* 0x10 */, XCOFF_SYSCALL32 },
+    { "syscall32"   /* 0x20 */, XCOFF_SYSCALL32 },
+    { "syscall3264" /* 0x40 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 },
+    { "syscall64"   /* 0x80 */, XCOFF_SYSCALL64 },
+    { NULL, 0 },
+  };
+
+  *flag = 0;
+
+  for (bit = 0;; bit++)
+    {
+      string = s[bit].syscall_string;
+      if (string == NULL)
+	return -1;
+
+      if (0 == strcmp (input, string))
+	{
+	  if (1 << bit & syscall_mask)
+	    {
+	      *flag = s[bit].flag;
+	      return 1;
+	    }
+	  else
+	    {
+	      return 0;
+	    }
+	}
+    }
+  /* should not be here */
+  return -1;
+}
+
+/* Read an import or export file.  For an import file, this is called
+   by the before_allocation emulation routine.  For an export file,
+   this is called by the handle_option emulation routine.  */
+
+static void
+gld${EMULATION_NAME}_read_file (const char *filename, bfd_boolean import)
+{
+  struct obstack *o;
+  FILE *f;
+  int lineno;
+  int c;
+  bfd_boolean keep;
+  const char *imppath;
+  const char *impfile;
+  const char *impmember;
+
+  o = (struct obstack *) xmalloc (sizeof (struct obstack));
+  obstack_specify_allocation (o, 0, 0, xmalloc, gld${EMULATION_NAME}_free);
+
+  f = fopen (filename, FOPEN_RT);
+  if (f == NULL)
+    {
+      bfd_set_error (bfd_error_system_call);
+      einfo ("%F%s: %E\n", filename);
+    }
+
+  keep = FALSE;
+
+  imppath = NULL;
+  impfile = NULL;
+  impmember = NULL;
+
+  lineno = 0;
+
+  /* Default to 32 and 64 bit mode
+     symbols at top of /lib/syscalls.exp do not have a mode modifier and they
+     are not repeated, assume 64 bit routines also want to use them.
+     See the routine change_symbol_mode for more information.  */
+
+  symbol_mode = 0x04;
+
+  while ((c = getc (f)) != EOF)
+    {
+      char *s;
+      char *symname;
+      unsigned int syscall_flag = 0;
+      bfd_vma address;
+      struct bfd_link_hash_entry *h;
+
+      if (c != '\n')
+	{
+	  obstack_1grow (o, c);
+	  continue;
+	}
+
+      obstack_1grow (o, '\0');
+      ++lineno;
+
+      s = (char *) obstack_base (o);
+      while (ISSPACE (*s))
+	++s;
+      if (*s == '\0'
+	  || *s == '*'
+	  || change_symbol_mode (s)
+	  || (*s == '#' && s[1] == ' ')
+	  || (!import && *s == '#' && s[1] == '!'))
+	{
+	  obstack_free (o, obstack_base (o));
+	  continue;
+	}
+
+      if (*s == '#' && s[1] == '!')
+	{
+	  s += 2;
+	  while (ISSPACE (*s))
+	    ++s;
+	  if (*s == '\0')
+	    {
+	      imppath = NULL;
+	      impfile = NULL;
+	      impmember = NULL;
+	      obstack_free (o, obstack_base (o));
+	    }
+	  else if (*s == '(')
+	    einfo ("%F%s%d: #! ([member]) is not supported in import files\n",
+		   filename, lineno);
+	  else
+	    {
+	      char cs;
+	      char *start;
+
+	      (void) obstack_finish (o);
+	      keep = TRUE;
+	      start = s;
+	      while (!ISSPACE (*s) && *s != '(' && *s != '\0')
+		++s;
+	      cs = *s;
+	      *s = '\0';
+	      if (!bfd_xcoff_split_import_path (link_info.output_bfd,
+						start, &imppath, &impfile))
+		einfo ("%F%P: Could not parse import path: %E\n");
+	      while (ISSPACE (cs))
+		{
+		  ++s;
+		  cs = *s;
+		}
+	      if (cs != '(')
+		{
+		  impmember = "";
+		  if (cs != '\0')
+		    einfo ("%s:%d: warning: syntax error in import file\n",
+			   filename, lineno);
+		}
+	      else
+		{
+		  ++s;
+		  impmember = s;
+		  while (*s != ')' && *s != '\0')
+		    ++s;
+		  if (*s == ')')
+		    *s = '\0';
+		  else
+		    einfo ("%s:%d: warning: syntax error in import file\n",
+			   filename, lineno);
+		}
+	    }
+
+	  continue;
+	}
+
+      if (symbol_mode & symbol_mode_mask)
+	{
+	  /* This is a symbol to be imported or exported.  */
+	  symname = s;
+	  syscall_flag = 0;
+	  address = (bfd_vma) -1;
+
+	  while (!ISSPACE (*s) && *s != '\0')
+	    ++s;
+	  if (*s != '\0')
+	    {
+	      char *se;
+
+	      *s++ = '\0';
+
+	      while (ISSPACE (*s))
+		++s;
+
+	      se = s;
+	      while (!ISSPACE (*se) && *se != '\0')
+		++se;
+	      if (*se != '\0')
+		{
+		  *se++ = '\0';
+		  while (ISSPACE (*se))
+		    ++se;
+		  if (*se != '\0')
+		    einfo ("%s%d: warning: syntax error in import/export file\n",
+			   filename, lineno);
+		}
+
+	      if (s != se)
+		{
+		  int status;
+		  const char *end;
+
+		  status = is_syscall (s, &syscall_flag);
+
+		  if (0 > status)
+		    {
+		      /* not a system call, check for address */
+		      address = bfd_scan_vma (s, &end, 0);
+		      if (*end != '\0')
+			{
+			  einfo ("%s:%d: warning: syntax error in import/export file\n",
+				 filename, lineno);
+
+			}
+		    }
+		}
+	    }
+
+	  if (!import)
+	    {
+	      struct export_symbol_list *n;
+
+	      ldlang_add_undef (symname, TRUE);
+	      n = ((struct export_symbol_list *)
+		   xmalloc (sizeof (struct export_symbol_list)));
+	      n->next = export_symbols;
+	      n->name = xstrdup (symname);
+	      export_symbols = n;
+	    }
+	  else
+	    {
+	      h = bfd_link_hash_lookup (link_info.hash, symname, FALSE, FALSE,
+					TRUE);
+	      if (h == NULL || h->type == bfd_link_hash_new)
+		{
+		  /* We can just ignore attempts to import an unreferenced
+		     symbol.  */
+		}
+	      else
+		{
+		  if (!bfd_xcoff_import_symbol (link_info.output_bfd,
+						&link_info, h,
+						address, imppath, impfile,
+						impmember, syscall_flag))
+		    einfo ("%X%s:%d: failed to import symbol %s: %E\n",
+			   filename, lineno, symname);
+		}
+	    }
+	}
+      obstack_free (o, obstack_base (o));
+    }
+
+  if (obstack_object_size (o) > 0)
+    {
+      einfo ("%s:%d: warning: ignoring unterminated last line\n",
+	     filename, lineno);
+      obstack_free (o, obstack_base (o));
+    }
+
+  if (!keep)
+    {
+      obstack_free (o, NULL);
+      free (o);
+    }
+}
+
+/* This routine saves us from worrying about declaring free.  */
+
+static void
+gld${EMULATION_NAME}_free (void *p)
+{
+  free (p);
+}
+
+/* This is called by the before_allocation routine via
+   lang_for_each_statement.  It looks for relocations and assignments
+   to symbols.  */
+
+static void
+gld${EMULATION_NAME}_find_relocs (lang_statement_union_type *s)
+{
+  if (s->header.type == lang_reloc_statement_enum)
+    {
+      lang_reloc_statement_type *rs;
+
+      rs = &s->reloc_statement;
+      if (rs->name == NULL)
+	einfo ("%F%P: only relocations against symbols are permitted\n");
+      if (!bfd_xcoff_link_count_reloc (link_info.output_bfd, &link_info,
+				       rs->name))
+	einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n");
+    }
+
+  if (s->header.type == lang_assignment_statement_enum)
+    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)
+{
+  struct bfd_link_hash_entry *h;
+
+  switch (exp->type.node_class)
+    {
+    case etree_provide:
+      h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
+				FALSE, FALSE, FALSE);
+      if (h == NULL)
+	break;
+      /* Fall through.  */
+    case etree_assign:
+      if (strcmp (exp->assign.dst, ".") != 0)
+	{
+	  if (!bfd_xcoff_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${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
+      break;
+
+    default:
+      break;
+    }
+}
+
+static char *
+gld${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 ${srcdir}/emultempl/ostring.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/${EMULATION_NAME}.x";
+}
+EOF
+
+fi
+
+fragment <<EOF
+
+static void
+gld${EMULATION_NAME}_create_output_section_statements (void)
+{
+  /* __rtinit */
+  if ((bfd_get_flavour (link_info.output_bfd) == bfd_target_xcoff_flavour)
+      && (link_info.init_function != NULL
+	  || link_info.fini_function != NULL
+	  || rtld))
+    {
+      initfini_file = lang_add_input_file ("initfini",
+					   lang_input_file_is_file_enum,
+					   NULL);
+
+      initfini_file->the_bfd = bfd_create ("initfini", link_info.output_bfd);
+      if (initfini_file->the_bfd == NULL
+	  || ! bfd_set_arch_mach (initfini_file->the_bfd,
+				  bfd_get_arch (link_info.output_bfd),
+				  bfd_get_mach (link_info.output_bfd)))
+	{
+	  einfo ("%X%P: can not create BFD %E\n");
+	  return;
+	}
+
+      /* Call backend to fill in the rest */
+      if (! bfd_xcoff_link_generate_rtinit (initfini_file->the_bfd,
+					    link_info.init_function,
+					    link_info.fini_function,
+					    rtld))
+	{
+	  einfo ("%X%P: can not create BFD %E\n");
+	  return;
+	}
+
+      /* __rtld defined in /lib/librtl.a */
+      if (rtld)
+	lang_add_input_file ("rtl", lang_input_file_is_l_enum, NULL);
+    }
+}
+
+static void
+gld${EMULATION_NAME}_set_output_arch (void)
+{
+  bfd_set_arch_mach (link_info.output_bfd,
+		     bfd_xcoff_architecture (link_info.output_bfd),
+		     bfd_xcoff_machine (link_info.output_bfd));
+
+  ldfile_output_architecture = bfd_get_arch (link_info.output_bfd);
+  ldfile_output_machine = bfd_get_mach (link_info.output_bfd);
+  ldfile_output_machine_name = bfd_printable_name (link_info.output_bfd);
+}
+
+static bfd_boolean
+gld${EMULATION_NAME}_open_dynamic_archive (const char *arch,
+					   search_dirs_type *search,
+					   lang_input_statement_type *entry)
+{
+  char *path;
+
+  if (!entry->is_archive)
+    return FALSE;
+
+  path = concat (search->name, "/lib", entry->filename, arch, ".a", NULL);
+  if (!ldfile_try_open_bfd (path, entry))
+    {
+      free (path);
+      return FALSE;
+    }
+  /* Don't include the searched directory in the import path.  */
+  bfd_xcoff_set_archive_import_path (&link_info, entry->the_bfd,
+				     path + strlen (search->name) + 1);
+  entry->filename = path;
+  return TRUE;
+}
+
+struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = {
+  gld${EMULATION_NAME}_before_parse,
+  syslib_default,
+  hll_default,
+  after_parse_default,
+  gld${EMULATION_NAME}_after_open,
+  after_allocation_default,
+  gld${EMULATION_NAME}_set_output_arch,
+  gld${EMULATION_NAME}_choose_target,
+  gld${EMULATION_NAME}_before_allocation,
+  gld${EMULATION_NAME}_get_script,
+  "${EMULATION_NAME}",
+  "${OUTPUT_FORMAT}",
+  finish_default,
+  gld${EMULATION_NAME}_create_output_section_statements,
+  gld${EMULATION_NAME}_open_dynamic_archive,
+  0,				/* place_orphan */
+  0,				/* set_symbols */
+  gld${EMULATION_NAME}_parse_args,
+  gld${EMULATION_NAME}_add_options,
+  gld${EMULATION_NAME}_handle_option,
+  gld${EMULATION_NAME}_unrecognized_file,
+  NULL,				/* list_options */
+  NULL,				/* recognized_file */
+  NULL,				/* find potential_libraries */
+  NULL				/* new_vers_pattern */
+};
+EOF