ld/emultempl/aix.em

   1 # This shell script emits a C file. -*- C -*-
   2 # It does some substitutions.
   3 if [ -z "$MACHINE" ]; then
   4   OUTPUT_ARCH=${ARCH}
   5 else
   6   OUTPUT_ARCH=${ARCH}:${MACHINE}
   7 fi
   8 fragment <<EOF
   9 /* This file is is generated by a shell script.  DO NOT EDIT! */
  10
  11 /* AIX emulation code for ${EMULATION_NAME}
  12    Copyright 1991, 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
  13    2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012
  14    Free Software Foundation, Inc.
  15    Written by Steve Chamberlain <sac@cygnus.com>
  16    AIX support by Ian Lance Taylor <ian@cygnus.com>
  17    AIX 64 bit support by Tom Rix <trix@redhat.com>
  18
  19    This file is part of the GNU Binutils.
  20
  21    This program is free software; you can redistribute it and/or modify
  22    it under the terms of the GNU General Public License as published by
  23    the Free Software Foundation; either version 3 of the License, or
  24    (at your option) any later version.
  25
  26    This program is distributed in the hope that it will be useful,
  27    but WITHOUT ANY WARRANTY; without even the implied warranty of
  28    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  29    GNU General Public License for more details.
  30
  31    You should have received a copy of the GNU General Public License
  32    along with this program; if not, write to the Free Software
  33    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  34    MA 02110-1301, USA.  */
  35
  36 #define TARGET_IS_${EMULATION_NAME}
  37
  38 #include "sysdep.h"
  39 #include "bfd.h"
  40 #include "libiberty.h"
  41 #include "safe-ctype.h"
  42 #include "getopt.h"
  43 #include "obstack.h"
  44 #include "bfdlink.h"
  45
  46 #include "ld.h"
  47 #include "ldmain.h"
  48 #include "ldmisc.h"
  49 #include "ldexp.h"
  50 #include "ldlang.h"
  51 #include "ldfile.h"
  52 #include "ldemul.h"
  53 #include "ldctor.h"
  54 #include <ldgram.h>
  55
  56 #include "coff/internal.h"
  57 #include "coff/xcoff.h"
  58 #include "libcoff.h"
  59 #include "libxcoff.h"
  60
  61 static void gld${EMULATION_NAME}_read_file (const char *, bfd_boolean);
  62 static void gld${EMULATION_NAME}_free (void *);
  63 static void gld${EMULATION_NAME}_find_relocs (lang_statement_union_type *);
  64 static void gld${EMULATION_NAME}_find_exp_assignment (etree_type *);
  65
  66
  67 /* The file alignment required for each section.  */
  68 static unsigned long file_align;
  69
  70 /* The maximum size the stack is permitted to grow.  This is stored in
  71    the a.out header.  */
  72 static unsigned long maxstack;
  73
  74 /* The maximum data size.  This is stored in the a.out header.  */
  75 static unsigned long maxdata;
  76
  77 /* Whether to perform garbage collection.  */
  78 static int gc = 1;
  79
  80 /* The module type to use.  */
  81 static unsigned short modtype = ('1' << 8) | 'L';
  82
  83 /* Whether the .text section must be read-only (i.e., no relocs
  84    permitted).  */
  85 static int textro;
  86
  87 /* A mask of XCOFF_EXPALL and XCOFF_EXPFULL flags, as set by their
  88    associated -b and -bno options.  */
  89 static unsigned int auto_export_flags;
  90
  91 /* A mask of auto_export_flags bits that were explicitly set on the
  92    command line.  */
  93 static unsigned int explicit_auto_export_flags;
  94
  95 /* Whether to implement Unix like linker semantics.  */
  96 static int unix_ld;
  97
  98 /* Structure used to hold import file list.  */
  99
 100 struct filelist
 101 {
 102   struct filelist *next;
 103   const char *name;
 104 };
 105
 106 /* List of import files.  */
 107 static struct filelist *import_files;
 108
 109 /* List of export symbols read from the export files.  */
 110
 111 struct export_symbol_list
 112 {
 113   struct export_symbol_list *next;
 114   const char *name;
 115 };
 116
 117 static struct export_symbol_list *export_symbols;
 118
 119 /* Maintains the 32 or 64 bit mode state of import file */
 120 static unsigned int symbol_mode = 0x04;
 121
 122 /* Which symbol modes are valid */
 123 static unsigned int symbol_mode_mask = 0x0d;
 124
 125 /* Whether this is a 64 bit link */
 126 static int is_64bit = 0;
 127
 128 /* Which syscalls from import file are valid */
 129 static unsigned int syscall_mask = 0x77;
 130
 131 /* fake file for -binitfini support */
 132 static lang_input_statement_type *initfini_file;
 133
 134 /* Whether to do run time linking
 135    -brtl enables, -bnortl and -bnortllib disable. */
 136 static int rtld;
 137
 138 /* Explicit command line library path, -blibpath */
 139 static char *command_line_blibpath = NULL;
 140
 141 /* This routine is called before anything else is done.  */
 142
 143 static void
 144 gld${EMULATION_NAME}_before_parse (void)
 145 {
 146   ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
 147
 148   input_flags.dynamic = TRUE;
 149   config.has_shared = TRUE;
 150
 151   /* The link_info.[init|fini]_functions are initialized in ld/lexsup.c.
 152      Override them here so we can use the link_info.init_function as a
 153      state flag that lets the backend know that -binitfini has been done.  */
 154
 155   link_info.init_function = NULL;
 156   link_info.fini_function = NULL;
 157 }
 158
 159 /* Handle AIX specific options.  */
 160
 161 enum
 162   {
 163     OPTION_IGNORE = 300,
 164     OPTION_AUTOIMP,
 165     OPTION_ERNOTOK,
 166     OPTION_EROK,
 167     OPTION_EXPALL,
 168     OPTION_EXPFULL,
 169     OPTION_EXPORT,
 170     OPTION_IMPORT,
 171     OPTION_INITFINI,
 172     OPTION_LOADMAP,
 173     OPTION_MAXDATA,
 174     OPTION_MAXSTACK,
 175     OPTION_MODTYPE,
 176     OPTION_NOAUTOIMP,
 177     OPTION_NOEXPALL,
 178     OPTION_NOEXPFULL,
 179     OPTION_NOSTRCMPCT,
 180     OPTION_PD,
 181     OPTION_PT,
 182     OPTION_STRCMPCT,
 183     OPTION_UNIX,
 184     OPTION_32,
 185     OPTION_64,
 186     OPTION_LIBPATH,
 187     OPTION_NOLIBPATH,
 188   };
 189
 190 static void
 191 gld${EMULATION_NAME}_add_options
 192   (int ns, char **shortopts, int nl, struct option **longopts,
 193    int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
 194 {
 195   static const char xtra_short[] = "D:H:KT:z";
 196   static const struct option xtra_long[] = {
 197   /* -binitfini has special handling in the linker backend.  The native linker
 198      uses the arguemnts to generate a table of init and fini functions for
 199      the executable.  The important use for this option is to support aix 4.2+
 200      c++ constructors and destructors.  This is tied into gcc via collect2.c.
 201
 202      The function table is accessed by the runtime linker/loader by checking if
 203      the first symbol in the loader symbol table is __rtinit.  The gnu linker
 204      generates this symbol and makes it the first loader symbol.  */
 205
 206     {"basis", no_argument, NULL, OPTION_IGNORE},
 207     {"bautoimp", no_argument, NULL, OPTION_AUTOIMP},
 208     {"bcomprld", no_argument, NULL, OPTION_IGNORE},
 209     {"bcrld", no_argument, NULL, OPTION_IGNORE},
 210     {"bcror31", no_argument, NULL, OPTION_IGNORE},
 211     {"bD", required_argument, NULL, OPTION_MAXDATA},
 212     {"bE", required_argument, NULL, OPTION_EXPORT},
 213     {"bernotok", no_argument, NULL, OPTION_ERNOTOK},
 214     {"berok", no_argument, NULL, OPTION_EROK},
 215     {"berrmsg", no_argument, NULL, OPTION_IGNORE},
 216     {"bexpall", no_argument, NULL, OPTION_EXPALL},
 217     {"bexpfull", no_argument, NULL, OPTION_EXPFULL},
 218     {"bexport", required_argument, NULL, OPTION_EXPORT},
 219     {"bbigtoc", no_argument, NULL, OPTION_IGNORE},
 220     {"bf", no_argument, NULL, OPTION_ERNOTOK},
 221     {"bgc", no_argument, &gc, 1},
 222     {"bh", required_argument, NULL, OPTION_IGNORE},
 223     {"bhalt", required_argument, NULL, OPTION_IGNORE},
 224     {"bI", required_argument, NULL, OPTION_IMPORT},
 225     {"bimport", required_argument, NULL, OPTION_IMPORT},
 226     {"binitfini", required_argument, NULL, OPTION_INITFINI},
 227     {"bl", required_argument, NULL, OPTION_LOADMAP},
 228     {"bloadmap", required_argument, NULL, OPTION_LOADMAP},
 229     {"bmaxdata", required_argument, NULL, OPTION_MAXDATA},
 230     {"bmaxstack", required_argument, NULL, OPTION_MAXSTACK},
 231     {"bM", required_argument, NULL, OPTION_MODTYPE},
 232     {"bmodtype", required_argument, NULL, OPTION_MODTYPE},
 233     {"bnoautoimp", no_argument, NULL, OPTION_NOAUTOIMP},
 234     {"bnoexpall", no_argument, NULL, OPTION_NOEXPALL},
 235     {"bnoexpfull", no_argument, NULL, OPTION_NOEXPFULL},
 236     {"bnodelcsect", no_argument, NULL, OPTION_IGNORE},
 237     {"bnoentry", no_argument, NULL, OPTION_IGNORE},
 238     {"bnogc", no_argument, &gc, 0},
 239     {"bnso", no_argument, NULL, OPTION_NOAUTOIMP},
 240     {"bnostrcmpct", no_argument, NULL, OPTION_NOSTRCMPCT},
 241     {"bnotextro", no_argument, &textro, 0},
 242     {"bnro", no_argument, &textro, 0},
 243     {"bpD", required_argument, NULL, OPTION_PD},
 244     {"bpT", required_argument, NULL, OPTION_PT},
 245     {"bro", no_argument, &textro, 1},
 246     {"brtl", no_argument, &rtld, 1},
 247     {"bnortl", no_argument, &rtld, 0},
 248     {"bnortllib", no_argument, &rtld, 0},
 249     {"bS", required_argument, NULL, OPTION_MAXSTACK},
 250     {"bso", no_argument, NULL, OPTION_AUTOIMP},
 251     {"bstrcmpct", no_argument, NULL, OPTION_STRCMPCT},
 252     {"btextro", no_argument, &textro, 1},
 253     {"b32", no_argument, NULL, OPTION_32},
 254     {"b64", no_argument, NULL, OPTION_64},
 255     {"static", no_argument, NULL, OPTION_NOAUTOIMP},
 256     {"unix", no_argument, NULL, OPTION_UNIX},
 257     {"blibpath", required_argument, NULL, OPTION_LIBPATH},
 258     {"bnolibpath", required_argument, NULL, OPTION_NOLIBPATH},
 259     {NULL, no_argument, NULL, 0}
 260   };
 261
 262   /* Options supported by the AIX linker which we do not support:
 263      -S, -v, -Z, -bbindcmds, -bbinder, -bbindopts, -bcalls, -bcaps,
 264      -bcror15, -bdebugopt, -bdbg, -bdelcsect, -bex?, -bfilelist, -bfl,
 265      -bgcbypass, -bglink, -binsert, -bi, -bloadmap, -bl, -bmap, -bnl,
 266      -bnobind, -bnocomprld, -bnocrld, -bnoerrmsg, -bnoglink,
 267      -bnoloadmap, -bnl, -bnoobjreorder, -bnoquiet, -bnoreorder,
 268      -bnotypchk, -bnox, -bquiet, -bR, -brename, -breorder, -btypchk,
 269      -bx, -bX, -bxref.  */
 270
 271   *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
 272   memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
 273   *longopts = xrealloc (*longopts,
 274                         nl * sizeof (struct option) + sizeof (xtra_long));
 275   memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
 276 }
 277
 278 static bfd_boolean
 279 gld${EMULATION_NAME}_parse_args (int argc, char **argv)
 280 {
 281   int indx;
 282
 283   /* If the current option starts with -b, change the first : to an =.
 284      The AIX linker uses : to separate the option from the argument;
 285      changing it to = lets us treat it as a getopt option.  */
 286   indx = optind;
 287   if (indx == 0)
 288     indx = 1;
 289
 290   if (indx < argc && CONST_STRNEQ (argv[indx], "-b"))
 291     {
 292       char *s;
 293
 294       for (s = argv[indx]; *s != '\0'; s++)
 295         {
 296           if (*s == ':')
 297             {
 298               *s = '=';
 299               break;
 300             }
 301         }
 302     }
 303   return FALSE;
 304 }
 305
 306 /* Helper for option '-f', which specify a list of input files.
 307    Contrary to the native linker, we don't support shell patterns
 308    (simply because glob isn't always available).  */
 309
 310 static void
 311 read_file_list (const char *filename)
 312 {
 313   FILE *f;
 314   /* An upper bound on the number of characters in the file.  */
 315   long pos;
 316   /* File in memory.  */
 317   char *buffer;
 318   size_t len;
 319   char *b;
 320   char *e;
 321
 322   f = fopen (filename, FOPEN_RT);
 323   if (f == NULL)
 324     {
 325       einfo ("%F%P: cannot open %s\n", filename);
 326       return;
 327     }
 328   if (fseek (f, 0L, SEEK_END) == -1)
 329     goto error;
 330   pos = ftell (f);
 331   if (pos == -1)
 332     goto error;
 333   if (fseek (f, 0L, SEEK_SET) == -1)
 334     goto error;
 335
 336   buffer = (char *) xmalloc (pos + 1);
 337   len = fread (buffer, sizeof (char), pos, f);
 338   if (len != (size_t) pos && ferror (f))
 339     goto error;
 340   /* Add a NUL terminator.  */
 341   buffer[len] = '\0';
 342   fclose (f);
 343
 344   /* Parse files.  */
 345   b = buffer;
 346   while (1)
 347     {
 348       /* Skip empty lines.  */
 349       while (*b == '\n' || *b == '\r')
 350         b++;
 351
 352       /* Stop if end of buffer.  */
 353       if (b == buffer + len)
 354         break;
 355
 356       /* Eat any byte until end of line.  */
 357       for (e = b; *e != '\0'; e++)
 358         if (*e == '\n' || *e == '\r')
 359           break;
 360
 361       /* Replace end of line by nul.  */
 362       if (*e != '\0')
 363         *e++ = '\0';
 364
 365       if (b != e)
 366         lang_add_input_file (b, lang_input_file_is_search_file_enum, NULL);
 367       b = e;
 368     }
 369   return;
 370
 371  error:
 372   einfo ("%F%P: cannot read %s\n", optarg);
 373   fclose (f);
 374 }
 375
 376 static bfd_boolean
 377 gld${EMULATION_NAME}_handle_option (int optc)
 378 {
 379   bfd_signed_vma val;
 380   const char *end;
 381
 382   switch (optc)
 383     {
 384     default:
 385       return FALSE;
 386
 387     case 0:
 388       /* Long option which just sets a flag.  */
 389       break;
 390
 391     case 'f':
 392       /* This overrides --auxiliary.  This option specifies a file containing
 393          a list of input files.  */
 394       read_file_list (optarg);
 395       break;
 396
 397     case 'D':
 398       val = bfd_scan_vma (optarg, &end, 0);
 399       if (*end != '\0')
 400         einfo ("%P: warning: ignoring invalid -D number %s\n", optarg);
 401       else if (val != -1)
 402         lang_section_start (".data", exp_intop (val), NULL);
 403       break;
 404
 405     case 'H':
 406       val = bfd_scan_vma (optarg, &end, 0);
 407       if (*end != '\0' || (val & (val - 1)) != 0)
 408         einfo ("%P: warning: ignoring invalid -H number %s\n", optarg);
 409       else
 410         file_align = val;
 411       break;
 412
 413     case 'K':
 414     case 'z':
 415       /* FIXME: This should use the page size for the target system.  */
 416       file_align = 4096;
 417       break;
 418
 419     case 'T':
 420       /* On AIX this is the same as GNU ld -Ttext.  When we see -T
 421          number, we assume the AIX option is intended.  Otherwise, we
 422          assume the usual GNU ld -T option is intended.  We can't just
 423          ignore the AIX option, because gcc passes it to the linker.  */
 424       val = bfd_scan_vma (optarg, &end, 0);
 425       if (*end != '\0')
 426         return FALSE;
 427       lang_section_start (".text", exp_intop (val), NULL);
 428       break;
 429
 430     case OPTION_IGNORE:
 431       break;
 432
 433     case OPTION_INITFINI:
 434       {
 435         /*
 436          * The aix linker init fini has the format :
 437          *
 438          * -binitfini:[ Initial][:Termination][:Priority]
 439          *
 440          * it allows the Termination and Priority to be optional.
 441          *
 442          * Since we support only one init/fini pair, we ignore the Priority.
 443          *
 444          * Define the special symbol __rtinit.
 445          *
 446          * strtok does not correctly handle the case of -binitfini::fini: so
 447          * do it by hand
 448          */
 449         char *t, *i, *f;
 450
 451         i = t = optarg;
 452         while (*t && ':' != *t)
 453           t++;
 454         if (*t)
 455           *t++ = 0;
 456
 457         if (0 != strlen (i))
 458           link_info.init_function = i;
 459
 460         f = t;
 461         while (*t && ':' != *t)
 462           t++;
 463         *t = 0;
 464
 465         if (0 != strlen (f))
 466           link_info.fini_function = f;
 467       }
 468       break;
 469
 470     case OPTION_AUTOIMP:
 471       link_info.static_link = FALSE;
 472       break;
 473
 474     case OPTION_ERNOTOK:
 475       link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
 476       link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
 477       break;
 478
 479     case OPTION_EROK:
 480       link_info.unresolved_syms_in_objects = RM_IGNORE;
 481       link_info.unresolved_syms_in_shared_libs = RM_IGNORE;
 482       break;
 483
 484     case OPTION_EXPALL:
 485       auto_export_flags |= XCOFF_EXPALL;
 486       explicit_auto_export_flags |= XCOFF_EXPALL;
 487       break;
 488
 489     case OPTION_EXPFULL:
 490       auto_export_flags |= XCOFF_EXPFULL;
 491       explicit_auto_export_flags |= XCOFF_EXPFULL;
 492       break;
 493
 494     case OPTION_EXPORT:
 495       gld${EMULATION_NAME}_read_file (optarg, FALSE);
 496       break;
 497
 498     case OPTION_IMPORT:
 499       {
 500         struct filelist *n;
 501         struct filelist **flpp;
 502
 503         n = (struct filelist *) xmalloc (sizeof (struct filelist));
 504         n->next = NULL;
 505         n->name = optarg;
 506         flpp = &import_files;
 507         while (*flpp != NULL)
 508           flpp = &(*flpp)->next;
 509         *flpp = n;
 510       }
 511       break;
 512
 513     case OPTION_LOADMAP:
 514       config.map_filename = optarg;
 515       break;
 516
 517     case OPTION_MAXDATA:
 518       val = bfd_scan_vma (optarg, &end, 0);
 519       if (*end != '\0')
 520         einfo ("%P: warning: ignoring invalid -bmaxdata number %s\n", optarg);
 521       else
 522         maxdata = val;
 523       break;
 524
 525     case OPTION_MAXSTACK:
 526       val = bfd_scan_vma (optarg, &end, 0);
 527       if (*end != '\0')
 528         einfo ("%P: warning: ignoring invalid -bmaxstack number %s\n",
 529                optarg);
 530       else
 531         maxstack = val;
 532       break;
 533
 534     case OPTION_MODTYPE:
 535       if (*optarg == 'S')
 536         {
 537           link_info.shared = TRUE;
 538           ++optarg;
 539         }
 540       if (*optarg == '\0' || optarg[1] == '\0')
 541         einfo ("%P: warning: ignoring invalid module type %s\n", optarg);
 542       else
 543         modtype = (*optarg << 8) | optarg[1];
 544       break;
 545
 546     case OPTION_NOAUTOIMP:
 547       link_info.static_link = TRUE;
 548       break;
 549
 550     case OPTION_NOEXPALL:
 551       auto_export_flags &= ~XCOFF_EXPALL;
 552       explicit_auto_export_flags |= XCOFF_EXPALL;
 553       break;
 554
 555     case OPTION_NOEXPFULL:
 556       auto_export_flags &= ~XCOFF_EXPFULL;
 557       explicit_auto_export_flags |= XCOFF_EXPFULL;
 558       break;
 559
 560     case OPTION_NOSTRCMPCT:
 561       link_info.traditional_format = TRUE;
 562       break;
 563
 564     case OPTION_PD:
 565       /* This sets the page that the .data section is supposed to
 566          start on.  The offset within the page should still be the
 567          offset within the file, so we need to build an appropriate
 568          expression.  */
 569       val = bfd_scan_vma (optarg, &end, 0);
 570       if (*end != '\0')
 571         einfo ("%P: warning: ignoring invalid -pD number %s\n", optarg);
 572       else
 573         {
 574           etree_type *t;
 575
 576           t = exp_binop ('+',
 577                          exp_intop (val),
 578                          exp_binop ('&',
 579                                     exp_nameop (NAME, "."),
 580                                     exp_intop (0xfff)));
 581           t = exp_binop ('&',
 582                          exp_binop ('+', t, exp_intop (31)),
 583                          exp_intop (~(bfd_vma) 31));
 584           lang_section_start (".data", t, NULL);
 585         }
 586       break;
 587
 588     case OPTION_PT:
 589       /* This set the page that the .text section is supposed to start
 590          on.  The offset within the page should still be the offset
 591          within the file.  */
 592       val = bfd_scan_vma (optarg, &end, 0);
 593       if (*end != '\0')
 594         einfo ("%P: warning: ignoring invalid -pT number %s\n", optarg);
 595       else
 596         {
 597           etree_type *t;
 598
 599           t = exp_binop ('+',
 600                          exp_intop (val),
 601                          exp_nameop (SIZEOF_HEADERS, NULL));
 602           t = exp_binop ('&',
 603                          exp_binop ('+', t, exp_intop (31)),
 604                          exp_intop (~(bfd_vma) 31));
 605           lang_section_start (".text", t, NULL);
 606         }
 607       break;
 608
 609     case OPTION_STRCMPCT:
 610       link_info.traditional_format = FALSE;
 611       break;
 612
 613     case OPTION_UNIX:
 614       unix_ld = TRUE;
 615       break;
 616
 617     case OPTION_32:
 618       is_64bit = 0;
 619       syscall_mask = 0x77;
 620       symbol_mode_mask = 0x0d;
 621       break;
 622
 623     case OPTION_64:
 624       is_64bit = 1;
 625       syscall_mask = 0xcc;
 626       symbol_mode_mask = 0x0e;
 627       break;
 628
 629     case OPTION_LIBPATH:
 630       command_line_blibpath = optarg;
 631       break;
 632
 633     case OPTION_NOLIBPATH:
 634       command_line_blibpath = NULL;
 635       break;
 636
 637     }
 638
 639   return TRUE;
 640 }
 641
 642 /* This is called when an input file can not be recognized as a BFD
 643    object or an archive.  If the file starts with #!, we must treat it
 644    as an import file.  This is for AIX compatibility.  */
 645
 646 static bfd_boolean
 647 gld${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry)
 648 {
 649   FILE *e;
 650   bfd_boolean ret;
 651
 652   e = fopen (entry->filename, FOPEN_RT);
 653   if (e == NULL)
 654     return FALSE;
 655
 656   ret = FALSE;
 657
 658   if (getc (e) == '#' && getc (e) == '!')
 659     {
 660       struct filelist *n;
 661       struct filelist **flpp;
 662
 663       n = (struct filelist *) xmalloc (sizeof (struct filelist));
 664       n->next = NULL;
 665       n->name = entry->filename;
 666       flpp = &import_files;
 667       while (*flpp != NULL)
 668         flpp = &(*flpp)->next;
 669       *flpp = n;
 670
 671       ret = TRUE;
 672       entry->flags.loaded = TRUE;
 673     }
 674
 675   fclose (e);
 676
 677   return ret;
 678 }
 679
 680 /* This is called after the input files have been opened.  */
 681
 682 static void
 683 gld${EMULATION_NAME}_after_open (void)
 684 {
 685   bfd_boolean r;
 686   struct set_info *p;
 687
 688   after_open_default ();
 689
 690   /* Call ldctor_build_sets, after pretending that this is a
 691      relocatable link.  We do this because AIX requires relocation
 692      entries for all references to symbols, even in a final
 693      executable.  Of course, we only want to do this if we are
 694      producing an XCOFF output file.  */
 695   r = link_info.relocatable;
 696   if (strstr (bfd_get_target (link_info.output_bfd), "xcoff") != NULL)
 697     link_info.relocatable = TRUE;
 698   ldctor_build_sets ();
 699   link_info.relocatable = r;
 700
 701   /* For each set, record the size, so that the XCOFF backend can
 702      output the correct csect length.  */
 703   for (p = sets; p != (struct set_info *) NULL; p = p->next)
 704     {
 705       bfd_size_type size;
 706
 707       /* If the symbol is defined, we may have been invoked from
 708          collect, and the sets may already have been built, so we do
 709          not do anything.  */
 710       if (p->h->type == bfd_link_hash_defined
 711           || p->h->type == bfd_link_hash_defweak)
 712         continue;
 713
 714       if (p->reloc != BFD_RELOC_CTOR)
 715         {
 716           /* Handle this if we need to.  */
 717           abort ();
 718         }
 719
 720       size = (p->count + 2) * 4;
 721       if (!bfd_xcoff_link_record_set (link_info.output_bfd, &link_info,
 722                                       p->h, size))
 723         einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n");
 724     }
 725 }
 726
 727 /* This is called after the sections have been attached to output
 728    sections, but before any sizes or addresses have been set.  */
 729
 730 static void
 731 gld${EMULATION_NAME}_before_allocation (void)
 732 {
 733   struct filelist *fl;
 734   struct export_symbol_list *el;
 735   char *libpath;
 736   asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS];
 737   static const char *const must_keep_sections[] = {
 738     ".text",
 739     ".data",
 740     ".bss"
 741   };
 742   unsigned int i, flags;
 743
 744   /* Handle the import and export files, if any.  */
 745   for (fl = import_files; fl != NULL; fl = fl->next)
 746     gld${EMULATION_NAME}_read_file (fl->name, TRUE);
 747   for (el = export_symbols; el != NULL; el = el->next)
 748     {
 749       struct bfd_link_hash_entry *h;
 750
 751       h = bfd_link_hash_lookup (link_info.hash, el->name, FALSE, FALSE, FALSE);
 752       if (h == NULL)
 753         einfo ("%P%F: bfd_link_hash_lookup of export symbol failed: %E\n");
 754       if (!bfd_xcoff_export_symbol (link_info.output_bfd, &link_info, h))
 755         einfo ("%P%F: bfd_xcoff_export_symbol failed: %E\n");
 756     }
 757
 758   /* Track down all relocations called for by the linker script (these
 759      are typically constructor/destructor entries created by
 760      CONSTRUCTORS) and let the backend know it will need to create
 761      .loader relocs for them.  */
 762   lang_for_each_statement (gld${EMULATION_NAME}_find_relocs);
 763
 764   /* Precedence of LIBPATH
 765      -blibpath:  native support always first
 766      -rpath:     gnu extension
 767      -L          build from command line -L's */
 768   if (command_line_blibpath != NULL)
 769     libpath = command_line_blibpath;
 770   else if (command_line.rpath != NULL)
 771     libpath = command_line.rpath;
 772   else if (search_head == NULL)
 773     libpath = (char *) "";
 774   else
 775     {
 776       size_t len;
 777       search_dirs_type *search;
 778
 779       /* PR ld/4023: Strip sysroot prefix from any paths
 780          being inserted into the output binary's DT_RPATH.  */
 781       if (ld_sysroot != NULL
 782           && * ld_sysroot != 0)
 783         {
 784           const char * name = search_head->name;
 785           size_t ld_sysroot_len = strlen (ld_sysroot);
 786
 787           if (strncmp (name, ld_sysroot, ld_sysroot_len) == 0)
 788             name += ld_sysroot_len;
 789
 790           len = strlen (name);
 791           libpath = xmalloc (len + 1);
 792           strcpy (libpath, name);
 793
 794           for (search = search_head->next; search != NULL; search = search->next)
 795             {
 796               size_t nlen;
 797
 798               name = search->name;
 799               if (strncmp (name, ld_sysroot, ld_sysroot_len) == 0)
 800                 name += ld_sysroot_len;
 801
 802               nlen = strlen (name);
 803               libpath = xrealloc (libpath, len + nlen + 2);
 804               libpath[len] = ':';
 805               strcpy (libpath + len + 1, name);
 806               len += nlen + 1;
 807             }
 808         }
 809       else
 810         {
 811           len = strlen (search_head->name);
 812           libpath = xmalloc (len + 1);
 813           strcpy (libpath, search_head->name);
 814
 815           for (search = search_head->next; search != NULL; search = search->next)
 816             {
 817               size_t nlen;
 818
 819               nlen = strlen (search->name);
 820               libpath = xrealloc (libpath, len + nlen + 2);
 821               libpath[len] = ':';
 822               strcpy (libpath + len + 1, search->name);
 823               len += nlen + 1;
 824             }
 825         }
 826     }
 827
 828   /* Default to -bexpfull for SVR4-like semantics.  */
 829   flags = (unix_ld ? XCOFF_EXPFULL : 0);
 830   flags &= ~explicit_auto_export_flags;
 831   flags |= auto_export_flags;
 832
 833   /* Let the XCOFF backend set up the .loader section.  */
 834   if (!bfd_xcoff_size_dynamic_sections
 835       (link_info.output_bfd, &link_info, libpath, entry_symbol.name, file_align,
 836        maxstack, maxdata, gc && !unix_ld ? TRUE : FALSE,
 837        modtype, textro ? TRUE : FALSE, flags, special_sections,
 838        rtld ? TRUE : FALSE))
 839     einfo ("%P%F: failed to set dynamic section sizes: %E\n");
 840
 841   /* Look through the special sections, and put them in the right
 842      place in the link ordering.  This is especially magic.  */
 843   for (i = 0; i < XCOFF_NUMBER_OF_SPECIAL_SECTIONS; i++)
 844     {
 845       asection *sec;
 846       lang_output_section_statement_type *os;
 847       lang_statement_union_type **pls;
 848       lang_input_section_type *is;
 849       const char *oname;
 850       bfd_boolean start;
 851
 852       sec = special_sections[i];
 853       if (sec == NULL)
 854         continue;
 855
 856       /* Remove this section from the list of the output section.
 857          This assumes we know what the script looks like.  */
 858       is = NULL;
 859       os = lang_output_section_find (sec->output_section->name);
 860       if (os == NULL)
 861         einfo ("%P%F: can't find output section %s\n",
 862                sec->output_section->name);
 863
 864       for (pls = &os->children.head; *pls != NULL; pls = &(*pls)->header.next)
 865         {
 866           if ((*pls)->header.type == lang_input_section_enum
 867               && (*pls)->input_section.section == sec)
 868             {
 869               is = (lang_input_section_type *) * pls;
 870               *pls = (*pls)->header.next;
 871               break;
 872             }
 873
 874           if ((*pls)->header.type == lang_wild_statement_enum)
 875             {
 876               lang_statement_union_type **pwls;
 877
 878               for (pwls = &(*pls)->wild_statement.children.head;
 879                    *pwls != NULL; pwls = &(*pwls)->header.next)
 880                 {
 881
 882                   if ((*pwls)->header.type == lang_input_section_enum
 883                       && (*pwls)->input_section.section == sec)
 884                     {
 885                       is = (lang_input_section_type *) * pwls;
 886                       *pwls = (*pwls)->header.next;
 887                       break;
 888                     }
 889                 }
 890
 891               if (is != NULL)
 892                 break;
 893             }
 894         }
 895
 896       if (is == NULL)
 897         {
 898           einfo ("%P%F: can't find %s in output section\n",
 899                  bfd_get_section_name (sec->owner, sec));
 900         }
 901
 902       /* Now figure out where the section should go.  */
 903       switch (i)
 904         {
 905
 906         default:                /* to avoid warnings */
 907         case XCOFF_SPECIAL_SECTION_TEXT:
 908           /* _text */
 909           oname = ".text";
 910           start = TRUE;
 911           break;
 912
 913         case XCOFF_SPECIAL_SECTION_ETEXT:
 914           /* _etext */
 915           oname = ".text";
 916           start = FALSE;
 917           break;
 918
 919         case XCOFF_SPECIAL_SECTION_DATA:
 920           /* _data */
 921           oname = ".data";
 922           start = TRUE;
 923           break;
 924
 925         case XCOFF_SPECIAL_SECTION_EDATA:
 926           /* _edata */
 927           oname = ".data";
 928           start = FALSE;
 929           break;
 930
 931         case XCOFF_SPECIAL_SECTION_END:
 932         case XCOFF_SPECIAL_SECTION_END2:
 933           /* _end and end */
 934           oname = ".bss";
 935           start = FALSE;
 936           break;
 937         }
 938
 939       os = lang_output_section_find (oname);
 940
 941       if (start)
 942         {
 943           is->header.next = os->children.head;
 944           os->children.head = (lang_statement_union_type *) is;
 945         }
 946       else
 947         {
 948           is->header.next = NULL;
 949           lang_statement_append (&os->children,
 950                                  (lang_statement_union_type *) is,
 951                                  &is->header.next);
 952         }
 953     }
 954
 955   /* Executables and shared objects must always have .text, .data
 956      and .bss output sections, so that the header can refer to them.
 957      The kernel refuses to load objects that have missing sections.  */
 958   if (!link_info.relocatable)
 959     for (i = 0; i < ARRAY_SIZE (must_keep_sections); i++)
 960       {
 961         asection *sec;
 962
 963         sec = bfd_get_section_by_name (link_info.output_bfd,
 964                                        must_keep_sections[i]);
 965         if (sec == NULL)
 966           einfo ("%P: can't find required output section %s\n", must_keep_sections[i]);
 967         else
 968           sec->flags |= SEC_KEEP;
 969       }
 970
 971   before_allocation_default ();
 972 }
 973
 974 static char *
 975 gld${EMULATION_NAME}_choose_target (int argc, char **argv)
 976 {
 977   int i, j, jmax;
 978   static char *from_outside;
 979   static char *from_inside;
 980   static char *argv_to_target[][2] = {
 981     {NULL,   "${OUTPUT_FORMAT}"},
 982     {"-b32", "${OUTPUT_FORMAT_32BIT}"},
 983     {"-b64", "${OUTPUT_FORMAT_64BIT}"},
 984   };
 985
 986   jmax = 3;
 987
 988   from_outside = getenv (TARGET_ENVIRON);
 989   if (from_outside != (char *) NULL)
 990     return from_outside;
 991
 992   /* Set to default. */
 993   from_inside = argv_to_target[0][1];
 994   for (i = 1; i < argc; i++)
 995     {
 996       for (j = 1; j < jmax; j++)
 997         {
 998           if (0 == strcmp (argv[i], argv_to_target[j][0]))
 999             from_inside = argv_to_target[j][1];
1000         }
1001     }
1002
1003   return from_inside;
1004 }
1005
1006 /* Returns
1007    1 : state changed
1008    0 : no change */
1009 static int
1010 change_symbol_mode (char *input)
1011 {
1012   char *symbol_mode_string[] = {
1013     "# 32",                     /* 0x01 */
1014     "# 64",                     /* 0x02 */
1015     "# no32",                   /* 0x04 */
1016     "# no64",                   /* 0x08 */
1017     NULL,
1018   };
1019
1020   unsigned int bit;
1021   char *string;
1022
1023   for (bit = 0;; bit++)
1024     {
1025       string = symbol_mode_string[bit];
1026       if (string == NULL)
1027         return 0;
1028
1029       if (0 == strcmp (input, string))
1030         {
1031           symbol_mode = (1 << bit);
1032           return 1;
1033         }
1034     }
1035   /* should not be here */
1036   return 0;
1037 }
1038
1039 /* Returns
1040    1 : yes
1041    0 : ignore
1042    -1 : error, try something else */
1043 static int
1044 is_syscall (char *input, unsigned int *flag)
1045 {
1046   unsigned int bit;
1047   char *string;
1048
1049   struct sc {
1050     char *syscall_string;
1051     unsigned int flag;
1052   } s [] = {
1053     { "svc"         /* 0x01 */, XCOFF_SYSCALL32 },
1054     { "svc32"       /* 0x02 */, XCOFF_SYSCALL32 },
1055     { "svc3264"     /* 0x04 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 },
1056     { "svc64"       /* 0x08 */, XCOFF_SYSCALL64 },
1057     { "syscall"     /* 0x10 */, XCOFF_SYSCALL32 },
1058     { "syscall32"   /* 0x20 */, XCOFF_SYSCALL32 },
1059     { "syscall3264" /* 0x40 */, XCOFF_SYSCALL32 | XCOFF_SYSCALL64 },
1060     { "syscall64"   /* 0x80 */, XCOFF_SYSCALL64 },
1061     { NULL, 0 },
1062   };
1063
1064   *flag = 0;
1065
1066   for (bit = 0;; bit++)
1067     {
1068       string = s[bit].syscall_string;
1069       if (string == NULL)
1070         return -1;
1071
1072       if (0 == strcmp (input, string))
1073         {
1074           if (1 << bit & syscall_mask)
1075             {
1076               *flag = s[bit].flag;
1077               return 1;
1078             }
1079           else
1080             {
1081               return 0;
1082             }
1083         }
1084     }
1085   /* should not be here */
1086   return -1;
1087 }
1088
1089 /* Read an import or export file.  For an import file, this is called
1090    by the before_allocation emulation routine.  For an export file,
1091    this is called by the handle_option emulation routine.  */
1092
1093 static void
1094 gld${EMULATION_NAME}_read_file (const char *filename, bfd_boolean import)
1095 {
1096   struct obstack *o;
1097   FILE *f;
1098   int lineno;
1099   int c;
1100   bfd_boolean keep;
1101   const char *imppath;
1102   const char *impfile;
1103   const char *impmember;
1104
1105   o = (struct obstack *) xmalloc (sizeof (struct obstack));
1106   obstack_specify_allocation (o, 0, 0, xmalloc, gld${EMULATION_NAME}_free);
1107
1108   f = fopen (filename, FOPEN_RT);
1109   if (f == NULL)
1110     {
1111       bfd_set_error (bfd_error_system_call);
1112       einfo ("%F%s: %E\n", filename);
1113     }
1114
1115   keep = FALSE;
1116
1117   imppath = NULL;
1118   impfile = NULL;
1119   impmember = NULL;
1120
1121   lineno = 0;
1122
1123   /* Default to 32 and 64 bit mode
1124      symbols at top of /lib/syscalls.exp do not have a mode modifier and they
1125      are not repeated, assume 64 bit routines also want to use them.
1126      See the routine change_symbol_mode for more information.  */
1127
1128   symbol_mode = 0x04;
1129
1130   while ((c = getc (f)) != EOF)
1131     {
1132       char *s;
1133       char *symname;
1134       unsigned int syscall_flag = 0;
1135       bfd_vma address;
1136       struct bfd_link_hash_entry *h;
1137
1138       if (c != '\n')
1139         {
1140           obstack_1grow (o, c);
1141           continue;
1142         }
1143
1144       obstack_1grow (o, '\0');
1145       ++lineno;
1146
1147       s = (char *) obstack_base (o);
1148       while (ISSPACE (*s))
1149         ++s;
1150       if (*s == '\0'
1151           || *s == '*'
1152           || change_symbol_mode (s)
1153           || (*s == '#' && s[1] == ' ')
1154           || (!import && *s == '#' && s[1] == '!'))
1155         {
1156           obstack_free (o, obstack_base (o));
1157           continue;
1158         }
1159
1160       if (*s == '#' && s[1] == '!')
1161         {
1162           s += 2;
1163           while (ISSPACE (*s))
1164             ++s;
1165           if (*s == '\0')
1166             {
1167               imppath = NULL;
1168               impfile = NULL;
1169               impmember = NULL;
1170               obstack_free (o, obstack_base (o));
1171             }
1172           else if (*s == '(')
1173             einfo ("%F%s%d: #! ([member]) is not supported in import files\n",
1174                    filename, lineno);
1175           else
1176             {
1177               char cs;
1178               char *start;
1179
1180               (void) obstack_finish (o);
1181               keep = TRUE;
1182               start = s;
1183               while (!ISSPACE (*s) && *s != '(' && *s != '\0')
1184                 ++s;
1185               cs = *s;
1186               *s = '\0';
1187               if (!bfd_xcoff_split_import_path (link_info.output_bfd,
1188                                                 start, &imppath, &impfile))
1189                 einfo ("%F%P: Could not parse import path: %E\n");
1190               while (ISSPACE (cs))
1191                 {
1192                   ++s;
1193                   cs = *s;
1194                 }
1195               if (cs != '(')
1196                 {
1197                   impmember = "";
1198                   if (cs != '\0')
1199                     einfo ("%s:%d: warning: syntax error in import file\n",
1200                            filename, lineno);
1201                 }
1202               else
1203                 {
1204                   ++s;
1205                   impmember = s;
1206                   while (*s != ')' && *s != '\0')
1207                     ++s;
1208                   if (*s == ')')
1209                     *s = '\0';
1210                   else
1211                     einfo ("%s:%d: warning: syntax error in import file\n",
1212                            filename, lineno);
1213                 }
1214             }
1215
1216           continue;
1217         }
1218
1219       if (symbol_mode & symbol_mode_mask)
1220         {
1221           /* This is a symbol to be imported or exported.  */
1222           symname = s;
1223           syscall_flag = 0;
1224           address = (bfd_vma) -1;
1225
1226           while (!ISSPACE (*s) && *s != '\0')
1227             ++s;
1228           if (*s != '\0')
1229             {
1230               char *se;
1231
1232               *s++ = '\0';
1233
1234               while (ISSPACE (*s))
1235                 ++s;
1236
1237               se = s;
1238               while (!ISSPACE (*se) && *se != '\0')
1239                 ++se;
1240               if (*se != '\0')
1241                 {
1242                   *se++ = '\0';
1243                   while (ISSPACE (*se))
1244                     ++se;
1245                   if (*se != '\0')
1246                     einfo ("%s%d: warning: syntax error in import/export file\n",
1247                            filename, lineno);
1248                 }
1249
1250               if (s != se)
1251                 {
1252                   int status;
1253                   const char *end;
1254
1255                   status = is_syscall (s, &syscall_flag);
1256
1257                   if (0 > status)
1258                     {
1259                       /* not a system call, check for address */
1260                       address = bfd_scan_vma (s, &end, 0);
1261                       if (*end != '\0')
1262                         {
1263                           einfo ("%s:%d: warning: syntax error in import/export file\n",
1264                                  filename, lineno);
1265
1266                         }
1267                     }
1268                 }
1269             }
1270
1271           if (!import)
1272             {
1273               struct export_symbol_list *n;
1274
1275               ldlang_add_undef (symname, TRUE);
1276               n = ((struct export_symbol_list *)
1277                    xmalloc (sizeof (struct export_symbol_list)));
1278               n->next = export_symbols;
1279               n->name = xstrdup (symname);
1280               export_symbols = n;
1281             }
1282           else
1283             {
1284               h = bfd_link_hash_lookup (link_info.hash, symname, FALSE, FALSE,
1285                                         TRUE);
1286               if (h == NULL || h->type == bfd_link_hash_new)
1287                 {
1288                   /* We can just ignore attempts to import an unreferenced
1289                      symbol.  */
1290                 }
1291               else
1292                 {
1293                   if (!bfd_xcoff_import_symbol (link_info.output_bfd,
1294                                                 &link_info, h,
1295                                                 address, imppath, impfile,
1296                                                 impmember, syscall_flag))
1297                     einfo ("%X%s:%d: failed to import symbol %s: %E\n",
1298                            filename, lineno, symname);
1299                 }
1300             }
1301         }
1302       obstack_free (o, obstack_base (o));
1303     }
1304
1305   if (obstack_object_size (o) > 0)
1306     {
1307       einfo ("%s:%d: warning: ignoring unterminated last line\n",
1308              filename, lineno);
1309       obstack_free (o, obstack_base (o));
1310     }
1311
1312   if (!keep)
1313     {
1314       obstack_free (o, NULL);
1315       free (o);
1316     }
1317 }
1318
1319 /* This routine saves us from worrying about declaring free.  */
1320
1321 static void
1322 gld${EMULATION_NAME}_free (void *p)
1323 {
1324   free (p);
1325 }
1326
1327 /* This is called by the before_allocation routine via
1328    lang_for_each_statement.  It looks for relocations and assignments
1329    to symbols.  */
1330
1331 static void
1332 gld${EMULATION_NAME}_find_relocs (lang_statement_union_type *s)
1333 {
1334   if (s->header.type == lang_reloc_statement_enum)
1335     {
1336       lang_reloc_statement_type *rs;
1337
1338       rs = &s->reloc_statement;
1339       if (rs->name == NULL)
1340         einfo ("%F%P: only relocations against symbols are permitted\n");
1341       if (!bfd_xcoff_link_count_reloc (link_info.output_bfd, &link_info,
1342                                        rs->name))
1343         einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n");
1344     }
1345
1346   if (s->header.type == lang_assignment_statement_enum)
1347     gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1348 }
1349
1350 /* Look through an expression for an assignment statement.  */
1351
1352 static void
1353 gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
1354 {
1355   struct bfd_link_hash_entry *h;
1356
1357   switch (exp->type.node_class)
1358     {
1359     case etree_provide:
1360       h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
1361                                 FALSE, FALSE, FALSE);
1362       if (h == NULL)
1363         break;
1364       /* Fall through.  */
1365     case etree_assign:
1366       if (strcmp (exp->assign.dst, ".") != 0)
1367         {
1368           if (!bfd_xcoff_record_link_assignment (link_info.output_bfd,
1369                                                  &link_info,
1370                                                  exp->assign.dst))
1371             einfo ("%P%F: failed to record assignment to %s: %E\n",
1372                    exp->assign.dst);
1373         }
1374       gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
1375       break;
1376
1377     case etree_binary:
1378       gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
1379       gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
1380       break;
1381
1382     case etree_trinary:
1383       gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
1384       gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
1385       gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
1386       break;
1387
1388     case etree_unary:
1389       gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1390       break;
1391
1392     default:
1393       break;
1394     }
1395 }
1396
1397 static char *
1398 gld${EMULATION_NAME}_get_script (int *isfile)
1399 EOF
1400
1401 if test -n "$COMPILE_IN"
1402 then
1403 # Scripts compiled in.
1404
1405 # sed commands to quote an ld script as a C string.
1406 sc="-f ${srcdir}/emultempl/ostring.sed"
1407
1408 fragment <<EOF
1409 {
1410   *isfile = 0;
1411
1412   if (link_info.relocatable && config.build_constructors)
1413     return
1414 EOF
1415 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
1416 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
1417 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
1418 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
1419 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
1420 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1421 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
1422 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
1423 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
1424 echo '; }'                                             >> e${EMULATION_NAME}.c
1425
1426 else
1427 # Scripts read from the filesystem.
1428
1429 fragment <<EOF
1430 {
1431   *isfile = 1;
1432
1433   if (link_info.relocatable && config.build_constructors)
1434     return "ldscripts/${EMULATION_NAME}.xu";
1435   else if (link_info.relocatable)
1436     return "ldscripts/${EMULATION_NAME}.xr";
1437   else if (!config.text_read_only)
1438     return "ldscripts/${EMULATION_NAME}.xbn";
1439   else if (!config.magic_demand_paged)
1440     return "ldscripts/${EMULATION_NAME}.xn";
1441   else
1442     return "ldscripts/${EMULATION_NAME}.x";
1443 }
1444 EOF
1445
1446 fi
1447
1448 fragment <<EOF
1449
1450 static void
1451 gld${EMULATION_NAME}_create_output_section_statements (void)
1452 {
1453   /* __rtinit */
1454   if ((bfd_get_flavour (link_info.output_bfd) == bfd_target_xcoff_flavour)
1455       && (link_info.init_function != NULL
1456           || link_info.fini_function != NULL
1457           || rtld))
1458     {
1459       initfini_file = lang_add_input_file ("initfini",
1460                                            lang_input_file_is_file_enum,
1461                                            NULL);
1462
1463       initfini_file->the_bfd = bfd_create ("initfini", link_info.output_bfd);
1464       if (initfini_file->the_bfd == NULL
1465           || ! bfd_set_arch_mach (initfini_file->the_bfd,
1466                                   bfd_get_arch (link_info.output_bfd),
1467                                   bfd_get_mach (link_info.output_bfd)))
1468         {
1469           einfo ("%X%P: can not create BFD %E\n");
1470           return;
1471         }
1472
1473       /* Call backend to fill in the rest */
1474       if (! bfd_xcoff_link_generate_rtinit (initfini_file->the_bfd,
1475                                             link_info.init_function,
1476                                             link_info.fini_function,
1477                                             rtld))
1478         {
1479           einfo ("%X%P: can not create BFD %E\n");
1480           return;
1481         }
1482
1483       /* __rtld defined in /lib/librtl.a */
1484       if (rtld)
1485         lang_add_input_file ("rtl", lang_input_file_is_l_enum, NULL);
1486     }
1487 }
1488
1489 static void
1490 gld${EMULATION_NAME}_set_output_arch (void)
1491 {
1492   bfd_set_arch_mach (link_info.output_bfd,
1493                      bfd_xcoff_architecture (link_info.output_bfd),
1494                      bfd_xcoff_machine (link_info.output_bfd));
1495
1496   ldfile_output_architecture = bfd_get_arch (link_info.output_bfd);
1497   ldfile_output_machine = bfd_get_mach (link_info.output_bfd);
1498   ldfile_output_machine_name = bfd_printable_name (link_info.output_bfd);
1499 }
1500
1501 static bfd_boolean
1502 gld${EMULATION_NAME}_open_dynamic_archive (const char *arch,
1503                                            search_dirs_type *search,
1504                                            lang_input_statement_type *entry)
1505 {
1506   char *path;
1507
1508   if (!entry->flags.maybe_archive)
1509     return FALSE;
1510
1511   path = concat (search->name, "/lib", entry->filename, arch, ".a", NULL);
1512   if (!ldfile_try_open_bfd (path, entry))
1513     {
1514       free (path);
1515       return FALSE;
1516     }
1517   /* Don't include the searched directory in the import path.  */
1518   bfd_xcoff_set_archive_import_path (&link_info, entry->the_bfd,
1519                                      path + strlen (search->name) + 1);
1520   entry->filename = path;
1521   return TRUE;
1522 }
1523
1524 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = {
1525   gld${EMULATION_NAME}_before_parse,
1526   syslib_default,
1527   hll_default,
1528   after_parse_default,
1529   gld${EMULATION_NAME}_after_open,
1530   after_allocation_default,
1531   gld${EMULATION_NAME}_set_output_arch,
1532   gld${EMULATION_NAME}_choose_target,
1533   gld${EMULATION_NAME}_before_allocation,
1534   gld${EMULATION_NAME}_get_script,
1535   "${EMULATION_NAME}",
1536   "${OUTPUT_FORMAT}",
1537   finish_default,
1538   gld${EMULATION_NAME}_create_output_section_statements,
1539   gld${EMULATION_NAME}_open_dynamic_archive,
1540   0,                            /* place_orphan */
1541   0,                            /* set_symbols */
1542   gld${EMULATION_NAME}_parse_args,
1543   gld${EMULATION_NAME}_add_options,
1544   gld${EMULATION_NAME}_handle_option,
1545   gld${EMULATION_NAME}_unrecognized_file,
1546   NULL,                         /* list_options */
1547   NULL,                         /* recognized_file */
1548   NULL,                         /* find potential_libraries */
1549   NULL                          /* new_vers_pattern */
1550 };
1551 EOF