19990502 sourceware importbinu_ss_19990502

1 files changed, 1054 insertions, 0 deletions

diff --git a/ld/emultempl/aix.em b/ld/emultempl/aix.em
new file mode 100644
index 0000000..c77857f
--- /dev/null
+++ b/ld/emultempl/aix.em
@@ -0,0 +1,1054 @@
+# This shell script emits a C file. -*- C -*-
+# It does some substitutions.
+cat >e${EMULATION_NAME}.c <<EOF
+/* This file is is generated by a shell script.  DO NOT EDIT! */
+
+/* AIX emulation code for ${EMULATION_NAME}
+   Copyright (C) 1991, 93, 95, 96, 97, 1998 Free Software Foundation, Inc.
+   Written by Steve Chamberlain <sac@cygnus.com>
+   AIX support by Ian Lance Taylor <ian@cygnus.com>
+
+This file is part of GLD, the Gnu Linker.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#define TARGET_IS_${EMULATION_NAME}
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libiberty.h"
+#include "getopt.h"
+#include "obstack.h"
+#include "bfdlink.h"
+
+#include <ctype.h>
+
+#include "ld.h"
+#include "ldmain.h"
+#include "ldemul.h"
+#include "ldfile.h"
+#include "ldmisc.h"
+#include "ldexp.h"
+#include "ldlang.h"
+#include "ldctor.h"
+#include "ldgram.h"
+
+static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
+static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
+static void gld${EMULATION_NAME}_after_open PARAMS ((void));
+static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
+static void gld${EMULATION_NAME}_read_file PARAMS ((const char *, boolean));
+static void gld${EMULATION_NAME}_free PARAMS ((PTR));
+static void gld${EMULATION_NAME}_find_relocs
+  PARAMS ((lang_statement_union_type *));
+static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *));
+static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
+
+/* The file alignment required for each section.  */
+static unsigned long file_align;
+
+/* The maximum size the stack is permitted to grow.  This is stored in
+   the a.out header.  */
+static unsigned long maxstack;
+
+/* The maximum data size.  This is stored in the a.out header.  */
+static unsigned long maxdata;
+
+/* Whether to perform garbage collection.  */
+static int gc = 1;
+
+/* The module type to use.  */
+static unsigned short modtype = ('1' << 8) | 'L';
+
+/* Whether the .text section must be read-only (i.e., no relocs
+   permitted).  */
+static int textro;
+
+/* Whether to implement Unix like linker semantics.  */
+static int unix_ld;
+
+/* Structure used to hold import file list.  */
+
+struct filelist
+{
+  struct filelist *next;
+  const char *name;
+};
+
+/* List of import files.  */
+static struct filelist *import_files;
+
+/* List of export symbols read from the export files.  */
+
+struct export_symbol_list
+{
+  struct export_symbol_list *next;
+  const char *name;
+  boolean syscall;
+};
+
+static struct export_symbol_list *export_symbols;
+
+/* This routine is called before anything else is done.  */
+
+static void
+gld${EMULATION_NAME}_before_parse()
+{
+#ifndef TARGET_			/* I.e., if not generic.  */
+  ldfile_output_architecture = bfd_arch_${ARCH};
+#endif /* not TARGET_ */
+  config.has_shared = true;
+}
+
+/* Handle AIX specific options.  */
+
+static int
+gld${EMULATION_NAME}_parse_args (argc, argv)
+     int argc;
+     char **argv;
+{
+  int prevoptind = optind;
+  int prevopterr = opterr;
+  int indx;
+  int longind;
+  int optc;
+  long val;
+  char *end;
+
+#define OPTION_IGNORE (300)
+#define OPTION_AUTOIMP (OPTION_IGNORE + 1)
+#define OPTION_ERNOTOK (OPTION_AUTOIMP + 1)
+#define OPTION_EROK (OPTION_ERNOTOK + 1)
+#define OPTION_EXPORT (OPTION_EROK + 1)
+#define OPTION_IMPORT (OPTION_EXPORT + 1)
+#define OPTION_LOADMAP (OPTION_IMPORT + 1)
+#define OPTION_MAXDATA (OPTION_LOADMAP + 1)
+#define OPTION_MAXSTACK (OPTION_MAXDATA + 1)
+#define OPTION_MODTYPE (OPTION_MAXSTACK + 1)
+#define OPTION_NOAUTOIMP (OPTION_MODTYPE + 1)
+#define OPTION_NOSTRCMPCT (OPTION_NOAUTOIMP + 1)
+#define OPTION_PD (OPTION_NOSTRCMPCT + 1)
+#define OPTION_PT (OPTION_PD + 1)
+#define OPTION_STRCMPCT (OPTION_PT + 1)
+#define OPTION_UNIX (OPTION_STRCMPCT + 1)
+
+  static struct option longopts[] = {
+    {"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},
+    {"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},
+    {"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},
+    {"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},
+    {"bS", required_argument, NULL, OPTION_MAXSTACK},
+    {"bso", no_argument, NULL, OPTION_AUTOIMP},
+    {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT},
+    {"btextro", no_argument, &textro, 1},
+    {"static", no_argument, NULL, OPTION_NOAUTOIMP},
+    {"unix", no_argument, NULL, OPTION_UNIX},
+    {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.  */
+
+  /* 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 && strncmp (argv[indx], "-b", 2) == 0)
+    {
+      char *s;
+
+      for (s = argv[indx]; *s != '\0'; s++)
+	{
+	  if (*s == ':')
+	    {
+	      *s = '=';
+	      break;
+	    }
+	}
+    }
+
+  /* We add s and u so to the short options list so that -s and -u on
+     the command line do not match -static and -unix.  */
+
+  opterr = 0;
+  optc = getopt_long_only (argc, argv, "-D:H:KT:zsu", longopts, &longind);
+  opterr = prevopterr;
+
+  switch (optc)
+    {
+    case 's':
+    case 'u':
+    default:
+      optind = prevoptind;
+      return 0;
+
+    case 0:
+      /* Long option which just sets a flag.  */
+      break;
+
+    case 'D':
+      val = strtol (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));
+      break;
+
+    case 'H':
+      val = strtoul (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 = strtoul (optarg, &end, 0);
+      if (*end != '\0')
+	{
+	  optind = prevoptind;
+	  return 0;
+	}
+      lang_section_start (".text", exp_intop (val));
+      break;
+
+    case OPTION_IGNORE:
+      break;
+
+    case OPTION_AUTOIMP:
+      link_info.static_link = false;
+      break;
+
+    case OPTION_ERNOTOK:
+      force_make_executable = false;
+      break;
+
+    case OPTION_EROK:
+      force_make_executable = true;
+      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 = strtoul (optarg, &end, 0);
+      if (*end != '\0')
+	einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n",
+	       optarg);
+      else
+	maxdata = val;
+      break;
+
+    case OPTION_MAXSTACK:
+      val = strtoul (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_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 = strtoul (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);
+	}
+      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 = strtoul (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);
+	}
+      break;
+
+    case OPTION_STRCMPCT:
+      link_info.traditional_format = false;
+      break;
+
+    case OPTION_UNIX:
+      unix_ld = true;
+      break;
+    }
+
+  return 1;
+}
+
+/* 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 boolean
+gld${EMULATION_NAME}_unrecognized_file (entry)
+     lang_input_statement_type *entry;
+{
+  FILE *e;
+  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${EMULATION_NAME}_after_open ()
+{
+  boolean r;
+  struct set_info *p;
+
+  /* Call ldctor_build_sets, after pretending that this is a
+     relocateable link.  We do this because AIX requires relocation
+     entries for all references to symbols, even in a final
+     executable.  Of course, we only want to do this if we are
+     producing an XCOFF output file.  */
+  r = link_info.relocateable;
+  if (strstr (bfd_get_target (output_bfd), "xcoff") != NULL)
+    link_info.relocateable = true;
+  ldctor_build_sets ();
+  link_info.relocateable = r;
+
+  /* For each set, record the size, so that the XCOFF backend can
+     output the correct csect length.  */
+  for (p = sets; p != (struct set_info *) NULL; p = p->next)
+    {
+      bfd_size_type size;
+
+      /* If the symbol is defined, we may have been invoked from
+	 collect, and the sets may already have been built, so we do
+	 not do anything.  */
+      if (p->h->type == bfd_link_hash_defined
+	  || p->h->type == bfd_link_hash_defweak)
+	continue;
+
+      if (p->reloc != BFD_RELOC_CTOR)
+	{
+	  /* Handle this if we need to.  */
+	  abort ();
+	}
+
+      size = (p->count + 2) * 4;
+      if (! bfd_xcoff_link_record_set (output_bfd, &link_info, p->h, size))
+	einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n");
+    }
+}
+
+/* This is called after the sections have been attached to output
+   sections, but before any sizes or addresses have been set.  */
+
+static void
+gld${EMULATION_NAME}_before_allocation ()
+{
+  struct filelist *fl;
+  struct export_symbol_list *el;
+  char *libpath;
+  asection *special_sections[6];
+  int i;
+
+  /* Handle the import and export files, if any.  */
+  for (fl = import_files; fl != NULL; fl = fl->next)
+    gld${EMULATION_NAME}_read_file (fl->name, true);
+  for (el = export_symbols; el != NULL; el = el->next)
+    {
+      struct bfd_link_hash_entry *h;
+
+      h = bfd_link_hash_lookup (link_info.hash, el->name, false, false, false);
+      if (h == NULL)
+	einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n");
+      if (! bfd_xcoff_export_symbol (output_bfd, &link_info, h, el->syscall))
+	einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n");
+    }
+
+  /* Track down all relocations called for by the linker script (these
+     are typically constructor/destructor entries created by
+     CONSTRUCTORS) and let the backend know it will need to create
+     .loader relocs for them.  */
+  lang_for_each_statement (gld${EMULATION_NAME}_find_relocs);
+
+  /* We need to build LIBPATH from the -L arguments.  If any -rpath
+     arguments were used, though, we use -rpath instead, as a GNU
+     extension.  */
+  if (command_line.rpath != NULL)
+    libpath = command_line.rpath;
+  else if (search_head == NULL)
+    libpath = (char *) "";
+  else
+    {
+      size_t len;
+      search_dirs_type *search;
+
+      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;
+	}
+    }
+
+  /* Let the XCOFF backend set up the .loader section.  */
+  if (! bfd_xcoff_size_dynamic_sections (output_bfd, &link_info, libpath,
+					 entry_symbol, file_align,
+					 maxstack, maxdata,
+					 gc && ! unix_ld ? true : false,
+					 modtype,
+					 textro ? true : false,
+					 unix_ld,
+					 special_sections))
+    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 < 6; i++)
+    {
+      asection *sec;
+      lang_output_section_statement_type *os;
+      lang_statement_union_type **pls;
+      lang_input_section_type *is;
+      const char *oname;
+      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)->next)
+	{
+	  if ((*pls)->header.type == lang_input_section_enum
+	      && (*pls)->input_section.section == sec)
+	    {
+	      is = (lang_input_section_type *) *pls;
+	      *pls = (*pls)->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)->next)
+		{
+		  if ((*pwls)->header.type == lang_input_section_enum
+		      && (*pwls)->input_section.section == sec)
+		    {
+		      is = (lang_input_section_type *) *pwls;
+		      *pwls = (*pwls)->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 0:
+	  /* _text */
+	  oname = ".text";
+	  start = true;
+	  break;
+	case 1:
+	  /* _etext */
+	  oname = ".text";
+	  start = false;
+	  break;
+	case 2:
+	  /* _data */
+	  oname = ".data";
+	  start = true;
+	  break;
+	case 3:
+	  /* _edata */
+	  oname = ".data";
+	  start = false;
+	  break;
+	case 4:
+	case 5:
+	  /* _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);
+	}
+    }
+}
+
+/* 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 parse_args emulation routine.  */
+
+static void
+gld${EMULATION_NAME}_read_file (filename, import)
+     const char *filename;
+     boolean import;
+{
+  struct obstack *o;
+  FILE *f;
+  int lineno;
+  int c;
+  boolean keep;
+  const char *imppath;
+  const char *impfile;
+  const char *impmember;
+
+  o = (struct obstack *) xmalloc (sizeof (struct obstack));
+  obstack_specify_allocation (o, 0, 0, xmalloc, gld${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;
+  while ((c = getc (f)) != EOF)
+    {
+      char *s;
+      char *symname;
+      boolean syscall;
+      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 ((unsigned char) *s))
+	++s;
+      if (*s == '\0'
+	  || *s == '*'
+	  || (*s == '#' && s[1] == ' ')
+	  || (! import && *s == '#' && s[1] == '!'))
+	{
+	  obstack_free (o, obstack_base (o));
+	  continue;
+	}
+
+      if (*s == '#' && s[1] == '!')
+	{
+	  s += 2;
+	  while (isspace ((unsigned char) *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 *file;
+
+	      (void) obstack_finish (o);
+	      keep = true;
+	      imppath = s;
+	      file = NULL;
+	      while (! isspace ((unsigned char) *s) && *s != '(' && *s != '\0')
+		{
+		  if (*s == '/')
+		    file = s + 1;
+		  ++s;
+		}
+	      if (file != NULL)
+		{
+		  file[-1] = '\0';
+		  impfile = file;
+		  if (imppath == file - 1)
+		    imppath = "/";
+		}
+	      else
+		{
+		  impfile = imppath;
+		  imppath = "";
+		}
+	      cs = *s;
+	      *s = '\0';
+	      while (isspace ((unsigned char) 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;
+	}
+
+      /* This is a symbol to be imported or exported.  */
+      symname = s;
+      syscall = false;
+      address = (bfd_vma) -1;
+
+      while (! isspace ((unsigned char) *s) && *s != '\0')
+	++s;
+      if (*s != '\0')
+	{
+	  char *se;
+
+	  *s++ = '\0';
+
+	  while (isspace ((unsigned char) *s))
+	    ++s;
+
+	  se = s;
+	  while (! isspace ((unsigned char) *se) && *se != '\0')
+	    ++se;
+	  if (*se != '\0')
+	    {
+	      *se++ = '\0';
+	      while (isspace ((unsigned char) *se))
+		++se;
+	      if (*se != '\0')
+		einfo ("%s%d: warning: syntax error in import/export file\n",
+		       filename, lineno);
+	    }
+
+	  if (s == se)
+	    {
+	      /* There was no address after all.  */
+	    }
+	  else if (strcasecmp (s, "svc") == 0
+		   || strcasecmp (s, "syscall") == 0)
+	    syscall = true;
+	  else
+	    {
+	      char *end;
+
+	      address = strtoul (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);
+	  n = ((struct export_symbol_list *)
+	       xmalloc (sizeof (struct export_symbol_list)));
+	  n->next = export_symbols;
+	  n->name = buystring (symname);
+	  n->syscall = syscall;
+	  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 (output_bfd, &link_info, h,
+					     address, imppath, impfile,
+					     impmember))
+		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${EMULATION_NAME}_free (p)
+     PTR p;
+{
+  free (p);
+}
+
+/* This is called by the before_allocation routine via
+   lang_for_each_statement.  It looks for relocations and assignments
+   to symbols.  */
+
+static void
+gld${EMULATION_NAME}_find_relocs (s)
+     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 (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 (exp)
+     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 (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(isfile)
+     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 ${srcdir}/emultempl/stringify.sed"
+
+cat >>e${EMULATION_NAME}.c <<EOF
+{			     
+  *isfile = 0;
+
+  if (link_info.relocateable == true && config.build_constructors == true)
+    return
+EOF
+sed $sc ldscripts/${EMULATION_NAME}.xu                     >> e${EMULATION_NAME}.c
+echo '  ; else if (link_info.relocateable == true) return' >> e${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.
+
+cat >>e${EMULATION_NAME}.c <<EOF
+{			     
+  *isfile = 1;
+
+  if (link_info.relocateable == true && config.build_constructors == true)
+    return "ldscripts/${EMULATION_NAME}.xu";
+  else if (link_info.relocateable == true)
+    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
+
+cat >>e${EMULATION_NAME}.c <<EOF
+
+struct ld_emulation_xfer_struct ld_${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}",
+  0,	/* finish */
+  0,	/* create_output_section_statements */
+  0,	/* open_dynamic_archive */
+  0,	/* place_orphan */
+  0,	/* set_symbols */
+  gld${EMULATION_NAME}_parse_args,
+  gld${EMULATION_NAME}_unrecognized_file
+};
+EOF