ld/emultempl/beos.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 cat >e${EMULATION_NAME}.c <<EOF
   9 /* This file is part of GLD, the Gnu Linker.
  10    Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
  11    2005, 2006, 2007 Free Software Foundation, Inc.
  12
  13 This program is free software; you can redistribute it and/or modify
  14 it under the terms of the GNU General Public License as published by
  15 the Free Software Foundation; either version 2 of the License, or
  16 (at your option) any later version.
  17
  18 This program is distributed in the hope that it will be useful,
  19 but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 GNU General Public License for more details.
  22
  23 You should have received a copy of the GNU General Public License
  24 along with this program; if not, write to the Free Software
  25 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  26
  27 /* For WINDOWS_NT */
  28 /* The original file generated returned different default scripts depending
  29    on whether certain switches were set, but these switches pertain to the
  30    Linux system and that particular version of coff.  In the NT case, we
  31    only determine if the subsystem is console or windows in order to select
  32    the correct entry point by default. */
  33
  34 #include "sysdep.h"
  35 #include "bfd.h"
  36 #include "bfdlink.h"
  37 #include "getopt.h"
  38 #include "libiberty.h"
  39 #include "ld.h"
  40 #include "ldmain.h"
  41 #include "ldexp.h"
  42 #include "ldlang.h"
  43 #include "ldfile.h"
  44 #include "ldemul.h"
  45 #include <ldgram.h>
  46 #include "ldlex.h"
  47 #include "ldmisc.h"
  48 #include "ldctor.h"
  49 #include "coff/internal.h"
  50 #include "../bfd/libcoff.h"
  51
  52 #define TARGET_IS_${EMULATION_NAME}
  53
  54 static struct internal_extra_pe_aouthdr pe;
  55 static int dll;
  56
  57 extern const char *output_filename;
  58
  59 static void
  60 gld_${EMULATION_NAME}_before_parse (void)
  61 {
  62   ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
  63   output_filename = "a.exe";
  64 }
  65 \f
  66 /* PE format extra command line options.  */
  67
  68 /* Used for setting flags in the PE header. */
  69 #define OPTION_BASE_FILE                (300  + 1)
  70 #define OPTION_DLL                      (OPTION_BASE_FILE + 1)
  71 #define OPTION_FILE_ALIGNMENT           (OPTION_DLL + 1)
  72 #define OPTION_IMAGE_BASE               (OPTION_FILE_ALIGNMENT + 1)
  73 #define OPTION_MAJOR_IMAGE_VERSION      (OPTION_IMAGE_BASE + 1)
  74 #define OPTION_MAJOR_OS_VERSION         (OPTION_MAJOR_IMAGE_VERSION + 1)
  75 #define OPTION_MAJOR_SUBSYSTEM_VERSION  (OPTION_MAJOR_OS_VERSION + 1)
  76 #define OPTION_MINOR_IMAGE_VERSION      (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
  77 #define OPTION_MINOR_OS_VERSION         (OPTION_MINOR_IMAGE_VERSION + 1)
  78 #define OPTION_MINOR_SUBSYSTEM_VERSION  (OPTION_MINOR_OS_VERSION + 1)
  79 #define OPTION_SECTION_ALIGNMENT        (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
  80 #define OPTION_STACK                    (OPTION_SECTION_ALIGNMENT + 1)
  81 #define OPTION_SUBSYSTEM                (OPTION_STACK + 1)
  82 #define OPTION_HEAP                     (OPTION_SUBSYSTEM + 1)
  83
  84 static void
  85 gld${EMULATION_NAME}_add_options
  86   (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
  87    struct option **longopts, int nrl ATTRIBUTE_UNUSED,
  88    struct option **really_longopts ATTRIBUTE_UNUSED)
  89 {
  90   static const struct option xtra_long[] = {
  91     /* PE options */
  92     {"base-file", required_argument, NULL, OPTION_BASE_FILE},
  93     {"dll", no_argument, NULL, OPTION_DLL},
  94     {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
  95     {"heap", required_argument, NULL, OPTION_HEAP},
  96     {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
  97     {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
  98     {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
  99     {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
 100     {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
 101     {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
 102     {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
 103     {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
 104     {"stack", required_argument, NULL, OPTION_STACK},
 105     {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
 106     {NULL, no_argument, NULL, 0}
 107   };
 108
 109   *longopts = (struct option *)
 110     xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
 111   memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
 112 }
 113
 114
 115 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
 116    parameters which may be input from the command line */
 117
 118 typedef struct {
 119   void *ptr;
 120   int size;
 121   int value;
 122   char *symbol;
 123   int inited;
 124 } definfo;
 125
 126 #define D(field,symbol,def)  {&pe.field,sizeof(pe.field), def, symbol,0}
 127
 128 static definfo init[] =
 129 {
 130   /* imagebase must be first */
 131 #define IMAGEBASEOFF 0
 132   D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE),
 133 #define DLLOFF 1
 134   {&dll, sizeof(dll), 0, "__dll__", 0},
 135   D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
 136   D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
 137   D(MajorOperatingSystemVersion,"__major_os_version__", 4),
 138   D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
 139   D(MajorImageVersion,"__major_image_version__", 1),
 140   D(MinorImageVersion,"__minor_image_version__", 0),
 141   D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
 142   D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
 143   D(Subsystem,"__subsystem__", 3),
 144   D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
 145   D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
 146   D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
 147   D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
 148   D(LoaderFlags,"__loader_flags__", 0x0),
 149   { NULL, 0, 0, NULL, 0 }
 150 };
 151
 152
 153 static void
 154 set_pe_name (char *name, long val)
 155 {
 156   int i;
 157   /* Find the name and set it. */
 158   for (i = 0; init[i].ptr; i++)
 159     {
 160       if (strcmp (name, init[i].symbol) == 0)
 161         {
 162           init[i].value = val;
 163           init[i].inited = 1;
 164           return;
 165         }
 166     }
 167   abort();
 168 }
 169
 170
 171 static void
 172 set_pe_subsystem (void)
 173 {
 174   const char *sver;
 175   int len;
 176   int i;
 177   static const struct
 178     {
 179       const char *name;
 180       const int value;
 181       const char *entry;
 182     }
 183   v[] =
 184     {
 185       { "native", 1, "_NtProcessStartup" },
 186       { "windows", 2, "_WinMainCRTStartup" },
 187       { "wwindows", 2, "_wWinMainCRTStartup" },
 188       { "console", 3, "_mainCRTStartup" },
 189       { "wconsole", 3, "_wmainCRTStartup" },
 190       { "posix", 7, "___PosixProcessStartup"},
 191       { 0, 0, 0 }
 192     };
 193
 194   sver = strchr (optarg, ':');
 195   if (sver == NULL)
 196     len = strlen (optarg);
 197   else
 198     {
 199       char *end;
 200
 201       len = sver - optarg;
 202       set_pe_name ("__major_subsystem_version__",
 203                    strtoul (sver + 1, &end, 0));
 204       if (*end == '.')
 205         set_pe_name ("__minor_subsystem_version__",
 206                      strtoul (end + 1, &end, 0));
 207       if (*end != '\0')
 208         einfo ("%P: warning: bad version number in -subsystem option\n");
 209     }
 210
 211   for (i = 0; v[i].name; i++)
 212     {
 213       if (strncmp (optarg, v[i].name, len) == 0
 214           && v[i].name[len] == '\0')
 215         {
 216           set_pe_name ("__subsystem__", v[i].value);
 217
 218           /* If the subsystem is windows, we use a different entry
 219              point.  */
 220           lang_default_entry (v[i].entry);
 221
 222           return;
 223         }
 224     }
 225   einfo ("%P%F: invalid subsystem type %s\n", optarg);
 226 }
 227
 228
 229 static void
 230 set_pe_value (char *name)
 231 {
 232   char *end;
 233   set_pe_name (name,  strtoul (optarg, &end, 0));
 234   if (end == optarg)
 235     {
 236       einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg);
 237     }
 238
 239   optarg = end;
 240 }
 241
 242 static void
 243 set_pe_stack_heap (char *resname, char *comname)
 244 {
 245   set_pe_value (resname);
 246   if (*optarg == ',')
 247     {
 248       optarg++;
 249       set_pe_value (comname);
 250     }
 251   else if (*optarg)
 252     {
 253       einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg);
 254     }
 255 }
 256
 257
 258 static bfd_boolean
 259 gld${EMULATION_NAME}_handle_option (int optc)
 260 {
 261   switch (optc)
 262     {
 263     default:
 264       return FALSE;
 265
 266     case OPTION_BASE_FILE:
 267       link_info.base_file = fopen (optarg, FOPEN_WB);
 268       if (link_info.base_file == NULL)
 269         {
 270           fprintf (stderr, "%s: Can't open base file %s\n",
 271                    program_name, optarg);
 272           xexit (1);
 273         }
 274       break;
 275
 276       /* PE options */
 277     case OPTION_HEAP:
 278       set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
 279       break;
 280     case OPTION_STACK:
 281       set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
 282       break;
 283     case OPTION_SUBSYSTEM:
 284       set_pe_subsystem ();
 285       break;
 286     case OPTION_MAJOR_OS_VERSION:
 287       set_pe_value ("__major_os_version__");
 288       break;
 289     case OPTION_MINOR_OS_VERSION:
 290       set_pe_value ("__minor_os_version__");
 291       break;
 292     case OPTION_MAJOR_SUBSYSTEM_VERSION:
 293       set_pe_value ("__major_subsystem_version__");
 294       break;
 295     case OPTION_MINOR_SUBSYSTEM_VERSION:
 296       set_pe_value ("__minor_subsystem_version__");
 297       break;
 298     case OPTION_MAJOR_IMAGE_VERSION:
 299       set_pe_value ("__major_image_version__");
 300       break;
 301     case OPTION_MINOR_IMAGE_VERSION:
 302       set_pe_value ("__minor_image_version__");
 303       break;
 304     case OPTION_FILE_ALIGNMENT:
 305       set_pe_value ("__file_alignment__");
 306       break;
 307     case OPTION_SECTION_ALIGNMENT:
 308       set_pe_value ("__section_alignment__");
 309       break;
 310     case OPTION_DLL:
 311       set_pe_name ("__dll__", 1);
 312       break;
 313     case OPTION_IMAGE_BASE:
 314       set_pe_value ("__image_base__");
 315       break;
 316     }
 317   return TRUE;
 318 }
 319 \f
 320 /* Assign values to the special symbols before the linker script is
 321    read.  */
 322
 323 static void
 324 gld_${EMULATION_NAME}_set_symbols (void)
 325 {
 326   /* Run through and invent symbols for all the
 327      names and insert the defaults. */
 328   int j;
 329   lang_statement_list_type *save;
 330
 331   if (!init[IMAGEBASEOFF].inited)
 332     {
 333       if (link_info.relocatable)
 334         init[IMAGEBASEOFF].value = 0;
 335       else if (init[DLLOFF].value)
 336         init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE;
 337       else
 338         init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE;
 339     }
 340
 341   /* Don't do any symbol assignments if this is a relocatable link.  */
 342   if (link_info.relocatable)
 343     return;
 344
 345   /* Glue the assignments into the abs section */
 346   save = stat_ptr;
 347
 348   stat_ptr = &(abs_output_section->children);
 349
 350   for (j = 0; init[j].ptr; j++)
 351     {
 352       long val = init[j].value;
 353       lang_add_assignment (exp_assop ('=', init[j].symbol, exp_intop (val)));
 354       if (init[j].size == sizeof(short))
 355         *(short *)init[j].ptr = val;
 356       else if (init[j].size == sizeof(int))
 357         *(int *)init[j].ptr = val;
 358       else if (init[j].size == sizeof(long))
 359         *(long *)init[j].ptr = val;
 360       /* This might be a long long or other special type.  */
 361       else if (init[j].size == sizeof(bfd_vma))
 362         *(bfd_vma *)init[j].ptr = val;
 363       else      abort();
 364     }
 365   /* Restore the pointer. */
 366   stat_ptr = save;
 367
 368   if (pe.FileAlignment >
 369       pe.SectionAlignment)
 370     {
 371       einfo ("%P: warning, file alignment > section alignment.\n");
 372     }
 373 }
 374
 375 static void
 376 gld_${EMULATION_NAME}_after_open (void)
 377 {
 378   /* Pass the wacky PE command line options into the output bfd.
 379      FIXME: This should be done via a function, rather than by
 380      including an internal BFD header.  */
 381   if (!coff_data(output_bfd)->pe)
 382     {
 383       einfo ("%F%P: PE operations on non PE file.\n");
 384     }
 385
 386   pe_data(output_bfd)->pe_opthdr = pe;
 387   pe_data(output_bfd)->dll = init[DLLOFF].value;
 388
 389 }
 390 \f
 391 /* Callback functions for qsort in sort_sections. */
 392
 393 static int
 394 sort_by_file_name (const void *a, const void *b)
 395 {
 396   const lang_statement_union_type *const *ra = a;
 397   const lang_statement_union_type *const *rb = b;
 398   int i, a_sec, b_sec;
 399
 400   i = strcmp ((*ra)->input_section.section->owner->my_archive->filename,
 401               (*rb)->input_section.section->owner->my_archive->filename);
 402   if (i != 0)
 403     return i;
 404
 405   i = strcmp ((*ra)->input_section.section->owner->filename,
 406                  (*rb)->input_section.section->owner->filename);
 407   if (i != 0)
 408     return i;
 409   /* the tail idata4/5 are the only ones without relocs to an
 410      idata$6 section unless we are importing by ordinal,
 411      so sort them to last to terminate the IAT
 412      and HNT properly. if no reloc this one is import by ordinal
 413      so we have to sort by section contents */
 414
 415   if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) )
 416     {
 417        i =  (((*ra)->input_section.section->reloc_count >
 418                  (*rb)->input_section.section->reloc_count) ? -1 : 0);
 419        if ( i != 0)
 420          return i;
 421
 422         return  (((*ra)->input_section.section->reloc_count >
 423                  (*rb)->input_section.section->reloc_count) ? 0 : 1);
 424     }
 425   else
 426     {
 427        if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) )
 428           return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
 429
 430        if (! bfd_get_section_contents ((*ra)->input_section.section->owner,
 431          (*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec)))
 432             einfo ("%F%B: Can't read contents of section .idata: %E\n",
 433                  (*ra)->input_section.section->owner);
 434
 435        if (! bfd_get_section_contents ((*rb)->input_section.section->owner,
 436         (*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) ))
 437            einfo ("%F%B: Can't read contents of section .idata: %E\n",
 438                 (*rb)->input_section.section->owner);
 439
 440       i =  ((a_sec < b_sec) ? -1 : 0);
 441       if ( i != 0)
 442         return i;
 443       return  ((a_sec < b_sec) ? 0 : 1);
 444    }
 445 return 0;
 446 }
 447
 448 static int
 449 sort_by_section_name (const void *a, const void *b)
 450 {
 451   const lang_statement_union_type *const *ra = a;
 452   const lang_statement_union_type *const *rb = b;
 453   int i;
 454   i = strcmp ((*ra)->input_section.section->name,
 455               (*rb)->input_section.section->name);
 456   /* This is a hack to make .stab and .stabstr last, so we don't have
 457      to fix strip/objcopy for .reloc sections.
 458      FIXME stripping images with a .rsrc section still needs to be fixed.  */
 459   if (i != 0)
 460     {
 461       if ((CONST_STRNEQ ((*ra)->input_section.section->name, ".stab"))
 462            && (! CONST_STRNEQ ((*rb)->input_section.section->name, ".stab")))
 463          return 1;
 464     }
 465   return i;
 466 }
 467
 468 /* Subroutine of sort_sections to a contiguous subset of a list of sections.
 469    NEXT_AFTER is the element after the last one to sort.
 470    The result is a pointer to the last element's "next" pointer.  */
 471
 472 static lang_statement_union_type **
 473 sort_sections_1 (lang_statement_union_type **startptr,
 474                  lang_statement_union_type *next_after,
 475                  int count,
 476                  int (*sort_func) (const void *, const void *))
 477 {
 478   lang_statement_union_type **vec;
 479   lang_statement_union_type *p;
 480   int i;
 481   lang_statement_union_type **ret;
 482
 483   if (count == 0)
 484     return startptr;
 485
 486   vec = ((lang_statement_union_type **)
 487          xmalloc (count * sizeof (lang_statement_union_type *)));
 488
 489   for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
 490     vec[i] = p;
 491
 492   qsort (vec, count, sizeof (vec[0]), sort_func);
 493
 494   /* Fill in the next pointers again. */
 495   *startptr = vec[0];
 496   for (i = 0; i < count - 1; i++)
 497     vec[i]->header.next = vec[i + 1];
 498   vec[i]->header.next = next_after;
 499   ret = &vec[i]->header.next;
 500   free (vec);
 501   return ret;
 502 }
 503
 504 /* Sort the .idata\$foo input sections of archives into filename order.
 505    The reason is so dlltool can arrange to have the pe dll import information
 506    generated correctly - the head of the list goes into dh.o, the tail into
 507    dt.o, and the guts into ds[nnnn].o.  Note that this is only needed for the
 508    .idata section.
 509    FIXME: This may no longer be necessary with grouped sections.  Instead of
 510    sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
 511    .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
 512    This would have to be elaborated upon to handle multiple dll's
 513    [assuming such an eloboration is possible of course].
 514
 515    We also sort sections in '\$' wild statements.  These are created by the
 516    place_orphans routine to implement grouped sections.  */
 517
 518 static void
 519 sort_sections (lang_statement_union_type *s)
 520 {
 521   for (; s ; s = s->header.next)
 522     switch (s->header.type)
 523       {
 524       case lang_output_section_statement_enum:
 525         sort_sections (s->output_section_statement.children.head);
 526         break;
 527       case lang_wild_statement_enum:
 528         {
 529           lang_statement_union_type **p = &s->wild_statement.children.head;
 530           struct wildcard_list *sec;
 531
 532           for (sec = s->wild_statement.section_list; sec; sec = sec->next)
 533             {
 534               /* Is this the .idata section?  */
 535               if (sec->spec.name != NULL
 536                   && CONST_STRNEQ (sec->spec.name, ".idata"))
 537                 {
 538                   /* Sort the children.  We want to sort any objects in
 539                      the same archive.  In order to handle the case of
 540                      including a single archive multiple times, we sort
 541                      all the children by archive name and then by object
 542                      name.  After sorting them, we re-thread the pointer
 543                      chain.  */
 544
 545                   while (*p)
 546                     {
 547                       lang_statement_union_type *start = *p;
 548                       if (start->header.type != lang_input_section_enum
 549                           || !start->input_section.section->owner->my_archive)
 550                         p = &(start->header.next);
 551                       else
 552                         {
 553                           lang_statement_union_type *end;
 554                           int count;
 555
 556                           for (end = start, count = 0;
 557                                end && (end->header.type
 558                                        == lang_input_section_enum);
 559                                end = end->header.next)
 560                             count++;
 561
 562                           p = sort_sections_1 (p, end, count,
 563                                                sort_by_file_name);
 564                         }
 565                     }
 566                   break;
 567                 }
 568
 569               /* If this is a collection of grouped sections, sort them.
 570                  The linker script must explicitly mention "*(.foo\$)" or
 571                  "*(.foo\$*)".  Don't sort them if \$ is not the last
 572                  character (not sure if this is really useful, but it
 573                  allows explicitly mentioning some \$ sections and letting
 574                  the linker handle the rest).  */
 575               if (sec->spec.name != NULL)
 576                 {
 577                   char *q = strchr (sec->spec.name, '\$');
 578
 579                   if (q != NULL
 580                       && (q[1] == '\0'
 581                           || (q[1] == '*' && q[2] == '\0')))
 582                     {
 583                       lang_statement_union_type *end;
 584                       int count;
 585
 586                       for (end = *p, count = 0; end; end = end->header.next)
 587                         {
 588                           if (end->header.type != lang_input_section_enum)
 589                             abort ();
 590                           count++;
 591                         }
 592                       (void) sort_sections_1 (p, end, count,
 593                                               sort_by_section_name);
 594                     }
 595                   break;
 596                 }
 597             }
 598         }
 599         break;
 600       default:
 601         break;
 602       }
 603 }
 604
 605 static void
 606 gld_${EMULATION_NAME}_before_allocation (void)
 607 {
 608   extern lang_statement_list_type *stat_ptr;
 609
 610 #ifdef TARGET_IS_ppcpe
 611   /* Here we rummage through the found bfds to collect toc information */
 612   {
 613     LANG_FOR_EACH_INPUT_STATEMENT (is)
 614       {
 615         if (!ppc_process_before_allocation(is->the_bfd, &link_info))
 616           {
 617             einfo("Errors encountered processing file %s\n", is->filename);
 618           }
 619       }
 620   }
 621
 622   /* We have seen it all. Allocate it, and carry on */
 623   ppc_allocate_toc_section (&link_info);
 624 #else
 625 #ifdef TARGET_IS_armpe
 626   /* FIXME: we should be able to set the size of the interworking stub
 627      section.
 628
 629      Here we rummage through the found bfds to collect glue
 630      information.  FIXME: should this be based on a command line
 631      option?  krk@cygnus.com */
 632   {
 633     LANG_FOR_EACH_INPUT_STATEMENT (is)
 634       {
 635         if (!arm_process_before_allocation (is->the_bfd, & link_info))
 636           {
 637             einfo ("Errors encountered processing file %s", is->filename);
 638           }
 639       }
 640   }
 641
 642   /* We have seen it all. Allocate it, and carry on */
 643   arm_allocate_interworking_sections (& link_info);
 644 #endif /* TARGET_IS_armpe */
 645 #endif /* TARGET_IS_ppcpe */
 646
 647   sort_sections (stat_ptr->head);
 648
 649   before_allocation_default ();
 650 }
 651 \f
 652 /* Place an orphan section.  We use this to put sections with a '\$' in them
 653    into the right place.  Any section with a '\$' in them (e.g. .text\$foo)
 654    gets mapped to the output section with everything from the '\$' on stripped
 655    (e.g. .text).
 656    See the Microsoft Portable Executable and Common Object File Format
 657    Specification 4.1, section 4.2, Grouped Sections.
 658
 659    FIXME: This is now handled by the linker script using wildcards,
 660    but I'm leaving this here in case we want to enable it for sections
 661    which are not mentioned in the linker script.  */
 662
 663 static bfd_boolean
 664 gld${EMULATION_NAME}_place_orphan (asection *s)
 665 {
 666   const char *secname;
 667   char *output_secname, *ps;
 668   lang_output_section_statement_type *os;
 669   lang_statement_union_type *l;
 670
 671   if ((s->flags & SEC_ALLOC) == 0)
 672     return FALSE;
 673
 674   /* Don't process grouped sections unless doing a final link.
 675      If they're marked as COMDAT sections, we don't want .text\$foo to
 676      end up in .text and then have .text disappear because it's marked
 677      link-once-discard.  */
 678   if (link_info.relocatable)
 679     return FALSE;
 680
 681   secname = bfd_get_section_name (s->owner, s);
 682
 683   /* Everything from the '\$' on gets deleted so don't allow '\$' as the
 684      first character.  */
 685   if (*secname == '\$')
 686     einfo ("%P%F: section %s has '\$' as first character\n", secname);
 687   if (strchr (secname + 1, '\$') == NULL)
 688     return FALSE;
 689
 690   /* Look up the output section.  The Microsoft specs say sections names in
 691      image files never contain a '\$'.  Fortunately, lang_..._lookup creates
 692      the section if it doesn't exist.  */
 693   output_secname = xstrdup (secname);
 694   ps = strchr (output_secname + 1, '\$');
 695   *ps = 0;
 696   os = lang_output_section_statement_lookup (output_secname);
 697
 698   /* Find the '\$' wild statement for this section.  We currently require the
 699      linker script to explicitly mention "*(.foo\$)".
 700      FIXME: ppcpe.sc has .CRT\$foo in the .rdata section.  According to the
 701      Microsoft docs this isn't correct so it's not (currently) handled.  */
 702
 703   ps[0] = '\$';
 704   ps[1] = 0;
 705   for (l = os->children.head; l; l = l->header.next)
 706     if (l->header.type == lang_wild_statement_enum)
 707       {
 708         struct wildcard_list *sec;
 709
 710         for (sec = l->wild_statement.section_list; sec; sec = sec->next)
 711           if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0)
 712             break;
 713         if (sec)
 714           break;
 715       }
 716   ps[0] = 0;
 717   if (l == NULL)
 718     einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname);
 719
 720   /* Link the input section in and we're done for now.
 721      The sections still have to be sorted, but that has to wait until
 722      all such sections have been processed by us.  The sorting is done by
 723      sort_sections.  */
 724   lang_add_section (&l->wild_statement.children, s, os);
 725
 726   return TRUE;
 727 }
 728 \f
 729 static char *
 730 gld_${EMULATION_NAME}_get_script (int *isfile)
 731 EOF
 732 # Scripts compiled in.
 733 # sed commands to quote an ld script as a C string.
 734 sc="-f stringify.sed"
 735
 736 cat >>e${EMULATION_NAME}.c <<EOF
 737 {
 738   *isfile = 0;
 739
 740   if (link_info.relocatable && config.build_constructors)
 741     return
 742 EOF
 743 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
 744 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
 745 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 746 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 747 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 748 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 749 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 750 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 751 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 752 echo '; }'                                             >> e${EMULATION_NAME}.c
 753
 754 cat >>e${EMULATION_NAME}.c <<EOF
 755
 756
 757 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 758 {
 759   gld_${EMULATION_NAME}_before_parse,
 760   syslib_default,
 761   hll_default,
 762   after_parse_default,
 763   gld_${EMULATION_NAME}_after_open,
 764   after_allocation_default,
 765   set_output_arch_default,
 766   ldemul_default_target,
 767   gld_${EMULATION_NAME}_before_allocation,
 768   gld_${EMULATION_NAME}_get_script,
 769   "${EMULATION_NAME}",
 770   "${OUTPUT_FORMAT}",
 771   finish_default,
 772   NULL, /* create output section statements */
 773   NULL, /* open dynamic archive */
 774   gld${EMULATION_NAME}_place_orphan,
 775   gld_${EMULATION_NAME}_set_symbols,
 776   NULL, /* parse_args */
 777   gld${EMULATION_NAME}_add_options,
 778   gld${EMULATION_NAME}_handle_option,
 779   NULL, /* unrecognized file */
 780   NULL, /* list options */
 781   NULL, /* recognized file */
 782   NULL, /* find_potential_libraries */
 783   NULL  /* new_vers_pattern */
 784 };
 785 EOF