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 fragment <<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, 2008, 2009 Free Software Foundation, Inc.
  12
  13    This file is part of the GNU Binutils.
  14
  15    This program is free software; you can redistribute it and/or modify
  16    it under the terms of the GNU General Public License as published by
  17    the Free Software Foundation; either version 3 of the License, or
  18    (at your option) any later version.
  19
  20    This program is distributed in the hope that it will be useful,
  21    but WITHOUT ANY WARRANTY; without even the implied warranty of
  22    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23    GNU General Public License for more details.
  24
  25    You should have received a copy of the GNU General Public License
  26    along with this program; if not, write to the Free Software
  27    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  28    MA 02110-1301, USA.  */
  29
  30
  31 /* For WINDOWS_NT */
  32 /* The original file generated returned different default scripts depending
  33    on whether certain switches were set, but these switches pertain to the
  34    Linux system and that particular version of coff.  In the NT case, we
  35    only determine if the subsystem is console or windows in order to select
  36    the correct entry point by default. */
  37
  38 #include "sysdep.h"
  39 #include "bfd.h"
  40 #include "bfdlink.h"
  41 #include "getopt.h"
  42 #include "libiberty.h"
  43 #include "ld.h"
  44 #include "ldmain.h"
  45 #include "ldexp.h"
  46 #include "ldlang.h"
  47 #include "ldfile.h"
  48 #include "ldemul.h"
  49 #include <ldgram.h>
  50 #include "ldlex.h"
  51 #include "ldmisc.h"
  52 #include "ldctor.h"
  53 #include "coff/internal.h"
  54 #include "../bfd/libcoff.h"
  55
  56 #define TARGET_IS_${EMULATION_NAME}
  57
  58 static struct internal_extra_pe_aouthdr pe;
  59 static int dll;
  60
  61 extern const char *output_filename;
  62
  63 static void
  64 gld_${EMULATION_NAME}_before_parse (void)
  65 {
  66   ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
  67   output_filename = "a.exe";
  68 }
  69 \f
  70 /* PE format extra command line options.  */
  71
  72 /* Used for setting flags in the PE header. */
  73 #define OPTION_BASE_FILE                (300  + 1)
  74 #define OPTION_DLL                      (OPTION_BASE_FILE + 1)
  75 #define OPTION_FILE_ALIGNMENT           (OPTION_DLL + 1)
  76 #define OPTION_IMAGE_BASE               (OPTION_FILE_ALIGNMENT + 1)
  77 #define OPTION_MAJOR_IMAGE_VERSION      (OPTION_IMAGE_BASE + 1)
  78 #define OPTION_MAJOR_OS_VERSION         (OPTION_MAJOR_IMAGE_VERSION + 1)
  79 #define OPTION_MAJOR_SUBSYSTEM_VERSION  (OPTION_MAJOR_OS_VERSION + 1)
  80 #define OPTION_MINOR_IMAGE_VERSION      (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
  81 #define OPTION_MINOR_OS_VERSION         (OPTION_MINOR_IMAGE_VERSION + 1)
  82 #define OPTION_MINOR_SUBSYSTEM_VERSION  (OPTION_MINOR_OS_VERSION + 1)
  83 #define OPTION_SECTION_ALIGNMENT        (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
  84 #define OPTION_STACK                    (OPTION_SECTION_ALIGNMENT + 1)
  85 #define OPTION_SUBSYSTEM                (OPTION_STACK + 1)
  86 #define OPTION_HEAP                     (OPTION_SUBSYSTEM + 1)
  87
  88 static void
  89 gld${EMULATION_NAME}_add_options
  90   (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
  91    struct option **longopts, int nrl ATTRIBUTE_UNUSED,
  92    struct option **really_longopts ATTRIBUTE_UNUSED)
  93 {
  94   static const struct option xtra_long[] = {
  95     /* PE options */
  96     {"base-file", required_argument, NULL, OPTION_BASE_FILE},
  97     {"dll", no_argument, NULL, OPTION_DLL},
  98     {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
  99     {"heap", required_argument, NULL, OPTION_HEAP},
 100     {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
 101     {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
 102     {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
 103     {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
 104     {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
 105     {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
 106     {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
 107     {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
 108     {"stack", required_argument, NULL, OPTION_STACK},
 109     {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
 110     {NULL, no_argument, NULL, 0}
 111   };
 112
 113   *longopts = (struct option *)
 114     xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
 115   memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
 116 }
 117
 118
 119 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
 120    parameters which may be input from the command line */
 121
 122 typedef struct {
 123   void *ptr;
 124   int size;
 125   int value;
 126   char *symbol;
 127   int inited;
 128 } definfo;
 129
 130 #define D(field,symbol,def)  {&pe.field,sizeof(pe.field), def, symbol,0}
 131
 132 static definfo init[] =
 133 {
 134   /* imagebase must be first */
 135 #define IMAGEBASEOFF 0
 136   D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE),
 137 #define DLLOFF 1
 138   {&dll, sizeof(dll), 0, "__dll__", 0},
 139   D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
 140   D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
 141   D(MajorOperatingSystemVersion,"__major_os_version__", 4),
 142   D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
 143   D(MajorImageVersion,"__major_image_version__", 1),
 144   D(MinorImageVersion,"__minor_image_version__", 0),
 145   D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
 146   D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
 147   D(Subsystem,"__subsystem__", 3),
 148   D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
 149   D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
 150   D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
 151   D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
 152   D(LoaderFlags,"__loader_flags__", 0x0),
 153   { NULL, 0, 0, NULL, 0 }
 154 };
 155
 156
 157 static void
 158 set_pe_name (char *name, long val)
 159 {
 160   int i;
 161   /* Find the name and set it. */
 162   for (i = 0; init[i].ptr; i++)
 163     {
 164       if (strcmp (name, init[i].symbol) == 0)
 165         {
 166           init[i].value = val;
 167           init[i].inited = 1;
 168           return;
 169         }
 170     }
 171   abort();
 172 }
 173
 174
 175 static void
 176 set_pe_subsystem (void)
 177 {
 178   const char *sver;
 179   int len;
 180   int i;
 181   static const struct
 182     {
 183       const char *name;
 184       const int value;
 185       const char *entry;
 186     }
 187   v[] =
 188     {
 189       { "native", 1, "_NtProcessStartup" },
 190       { "windows", 2, "_WinMainCRTStartup" },
 191       { "wwindows", 2, "_wWinMainCRTStartup" },
 192       { "console", 3, "_mainCRTStartup" },
 193       { "wconsole", 3, "_wmainCRTStartup" },
 194       { "posix", 7, "___PosixProcessStartup"},
 195       { 0, 0, 0 }
 196     };
 197
 198   sver = strchr (optarg, ':');
 199   if (sver == NULL)
 200     len = strlen (optarg);
 201   else
 202     {
 203       char *end;
 204
 205       len = sver - optarg;
 206       set_pe_name ("__major_subsystem_version__",
 207                    strtoul (sver + 1, &end, 0));
 208       if (*end == '.')
 209         set_pe_name ("__minor_subsystem_version__",
 210                      strtoul (end + 1, &end, 0));
 211       if (*end != '\0')
 212         einfo ("%P: warning: bad version number in -subsystem option\n");
 213     }
 214
 215   for (i = 0; v[i].name; i++)
 216     {
 217       if (strncmp (optarg, v[i].name, len) == 0
 218           && v[i].name[len] == '\0')
 219         {
 220           set_pe_name ("__subsystem__", v[i].value);
 221
 222           /* If the subsystem is windows, we use a different entry
 223              point.  */
 224           lang_default_entry (v[i].entry);
 225
 226           return;
 227         }
 228     }
 229   einfo ("%P%F: invalid subsystem type %s\n", optarg);
 230 }
 231
 232
 233 static void
 234 set_pe_value (char *name)
 235 {
 236   char *end;
 237   set_pe_name (name,  strtoul (optarg, &end, 0));
 238   if (end == optarg)
 239     {
 240       einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg);
 241     }
 242
 243   optarg = end;
 244 }
 245
 246 static void
 247 set_pe_stack_heap (char *resname, char *comname)
 248 {
 249   set_pe_value (resname);
 250   if (*optarg == ',')
 251     {
 252       optarg++;
 253       set_pe_value (comname);
 254     }
 255   else if (*optarg)
 256     {
 257       einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg);
 258     }
 259 }
 260
 261
 262 static bfd_boolean
 263 gld${EMULATION_NAME}_handle_option (int optc)
 264 {
 265   switch (optc)
 266     {
 267     default:
 268       return FALSE;
 269
 270     case OPTION_BASE_FILE:
 271       link_info.base_file = fopen (optarg, FOPEN_WB);
 272       if (link_info.base_file == NULL)
 273         {
 274           fprintf (stderr, "%s: Can't open base file %s\n",
 275                    program_name, optarg);
 276           xexit (1);
 277         }
 278       break;
 279
 280       /* PE options */
 281     case OPTION_HEAP:
 282       set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
 283       break;
 284     case OPTION_STACK:
 285       set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
 286       break;
 287     case OPTION_SUBSYSTEM:
 288       set_pe_subsystem ();
 289       break;
 290     case OPTION_MAJOR_OS_VERSION:
 291       set_pe_value ("__major_os_version__");
 292       break;
 293     case OPTION_MINOR_OS_VERSION:
 294       set_pe_value ("__minor_os_version__");
 295       break;
 296     case OPTION_MAJOR_SUBSYSTEM_VERSION:
 297       set_pe_value ("__major_subsystem_version__");
 298       break;
 299     case OPTION_MINOR_SUBSYSTEM_VERSION:
 300       set_pe_value ("__minor_subsystem_version__");
 301       break;
 302     case OPTION_MAJOR_IMAGE_VERSION:
 303       set_pe_value ("__major_image_version__");
 304       break;
 305     case OPTION_MINOR_IMAGE_VERSION:
 306       set_pe_value ("__minor_image_version__");
 307       break;
 308     case OPTION_FILE_ALIGNMENT:
 309       set_pe_value ("__file_alignment__");
 310       break;
 311     case OPTION_SECTION_ALIGNMENT:
 312       set_pe_value ("__section_alignment__");
 313       break;
 314     case OPTION_DLL:
 315       set_pe_name ("__dll__", 1);
 316       break;
 317     case OPTION_IMAGE_BASE:
 318       set_pe_value ("__image_base__");
 319       break;
 320     }
 321   return TRUE;
 322 }
 323 \f
 324 /* Assign values to the special symbols before the linker script is
 325    read.  */
 326
 327 static void
 328 gld_${EMULATION_NAME}_set_symbols (void)
 329 {
 330   /* Run through and invent symbols for all the
 331      names and insert the defaults. */
 332   int j;
 333
 334   if (!init[IMAGEBASEOFF].inited)
 335     {
 336       if (link_info.relocatable)
 337         init[IMAGEBASEOFF].value = 0;
 338       else if (init[DLLOFF].value)
 339         init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE;
 340       else
 341         init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE;
 342     }
 343
 344   /* Don't do any symbol assignments if this is a relocatable link.  */
 345   if (link_info.relocatable)
 346     return;
 347
 348   /* Glue the assignments into the abs section */
 349   push_stat_ptr (&abs_output_section->children);
 350
 351   for (j = 0; init[j].ptr; j++)
 352     {
 353       long val = init[j].value;
 354       lang_add_assignment (exp_assop ('=', init[j].symbol, exp_intop (val)));
 355       if (init[j].size == sizeof(short))
 356         *(short *)init[j].ptr = val;
 357       else if (init[j].size == sizeof(int))
 358         *(int *)init[j].ptr = val;
 359       else if (init[j].size == sizeof(long))
 360         *(long *)init[j].ptr = val;
 361       /* This might be a long long or other special type.  */
 362       else if (init[j].size == sizeof(bfd_vma))
 363         *(bfd_vma *)init[j].ptr = val;
 364       else      abort();
 365     }
 366   /* Restore the pointer. */
 367   pop_stat_ptr ();
 368
 369   if (pe.FileAlignment >
 370       pe.SectionAlignment)
 371     {
 372       einfo ("%P: warning, file alignment > section alignment.\n");
 373     }
 374 }
 375
 376 static void
 377 gld_${EMULATION_NAME}_after_open (void)
 378 {
 379   /* Pass the wacky PE command line options into the output bfd.
 380      FIXME: This should be done via a function, rather than by
 381      including an internal BFD header.  */
 382   if (!coff_data(link_info.output_bfd)->pe)
 383     {
 384       einfo ("%F%P: PE operations on non PE file.\n");
 385     }
 386
 387   pe_data(link_info.output_bfd)->pe_opthdr = pe;
 388   pe_data(link_info.output_bfd)->dll = init[DLLOFF].value;
 389
 390 }
 391 \f
 392 /* Callback functions for qsort in sort_sections. */
 393
 394 static int
 395 sort_by_file_name (const void *a, const void *b)
 396 {
 397   const lang_statement_union_type *const *ra = a;
 398   const lang_statement_union_type *const *rb = b;
 399   int i, a_sec, b_sec;
 400
 401   i = strcmp ((*ra)->input_section.section->owner->my_archive->filename,
 402               (*rb)->input_section.section->owner->my_archive->filename);
 403   if (i != 0)
 404     return i;
 405
 406   i = strcmp ((*ra)->input_section.section->owner->filename,
 407                  (*rb)->input_section.section->owner->filename);
 408   if (i != 0)
 409     return i;
 410   /* the tail idata4/5 are the only ones without relocs to an
 411      idata$6 section unless we are importing by ordinal,
 412      so sort them to last to terminate the IAT
 413      and HNT properly. if no reloc this one is import by ordinal
 414      so we have to sort by section contents */
 415
 416   if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) )
 417     {
 418        i =  (((*ra)->input_section.section->reloc_count >
 419                  (*rb)->input_section.section->reloc_count) ? -1 : 0);
 420        if ( i != 0)
 421          return i;
 422
 423         return  (((*ra)->input_section.section->reloc_count >
 424                  (*rb)->input_section.section->reloc_count) ? 0 : 1);
 425     }
 426   else
 427     {
 428        if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) )
 429           return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
 430
 431        if (! bfd_get_section_contents ((*ra)->input_section.section->owner,
 432          (*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec)))
 433             einfo ("%F%B: Can't read contents of section .idata: %E\n",
 434                  (*ra)->input_section.section->owner);
 435
 436        if (! bfd_get_section_contents ((*rb)->input_section.section->owner,
 437         (*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) ))
 438            einfo ("%F%B: Can't read contents of section .idata: %E\n",
 439                 (*rb)->input_section.section->owner);
 440
 441       i =  ((a_sec < b_sec) ? -1 : 0);
 442       if ( i != 0)
 443         return i;
 444       return  ((a_sec < b_sec) ? 0 : 1);
 445    }
 446 return 0;
 447 }
 448
 449 static int
 450 sort_by_section_name (const void *a, const void *b)
 451 {
 452   const lang_statement_union_type *const *ra = a;
 453   const lang_statement_union_type *const *rb = b;
 454   int i;
 455   i = strcmp ((*ra)->input_section.section->name,
 456               (*rb)->input_section.section->name);
 457   /* This is a hack to make .stab and .stabstr last, so we don't have
 458      to fix strip/objcopy for .reloc sections.
 459      FIXME stripping images with a .rsrc section still needs to be fixed.  */
 460   if (i != 0)
 461     {
 462       if ((CONST_STRNEQ ((*ra)->input_section.section->name, ".stab"))
 463            && (! CONST_STRNEQ ((*rb)->input_section.section->name, ".stab")))
 464          return 1;
 465     }
 466   return i;
 467 }
 468
 469 /* Subroutine of sort_sections to a contiguous subset of a list of sections.
 470    NEXT_AFTER is the element after the last one to sort.
 471    The result is a pointer to the last element's "next" pointer.  */
 472
 473 static lang_statement_union_type **
 474 sort_sections_1 (lang_statement_union_type **startptr,
 475                  lang_statement_union_type *next_after,
 476                  int count,
 477                  int (*sort_func) (const void *, const void *))
 478 {
 479   lang_statement_union_type **vec;
 480   lang_statement_union_type *p;
 481   int i;
 482   lang_statement_union_type **ret;
 483
 484   if (count == 0)
 485     return startptr;
 486
 487   vec = ((lang_statement_union_type **)
 488          xmalloc (count * sizeof (lang_statement_union_type *)));
 489
 490   for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
 491     vec[i] = p;
 492
 493   qsort (vec, count, sizeof (vec[0]), sort_func);
 494
 495   /* Fill in the next pointers again. */
 496   *startptr = vec[0];
 497   for (i = 0; i < count - 1; i++)
 498     vec[i]->header.next = vec[i + 1];
 499   vec[i]->header.next = next_after;
 500   ret = &vec[i]->header.next;
 501   free (vec);
 502   return ret;
 503 }
 504
 505 /* Sort the .idata\$foo input sections of archives into filename order.
 506    The reason is so dlltool can arrange to have the pe dll import information
 507    generated correctly - the head of the list goes into dh.o, the tail into
 508    dt.o, and the guts into ds[nnnn].o.  Note that this is only needed for the
 509    .idata section.
 510    FIXME: This may no longer be necessary with grouped sections.  Instead of
 511    sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
 512    .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
 513    This would have to be elaborated upon to handle multiple dll's
 514    [assuming such an eloboration is possible of course].
 515
 516    We also sort sections in '\$' wild statements.  These are created by the
 517    place_orphans routine to implement grouped sections.  */
 518
 519 static void
 520 sort_sections (lang_statement_union_type *s)
 521 {
 522   for (; s ; s = s->header.next)
 523     switch (s->header.type)
 524       {
 525       case lang_output_section_statement_enum:
 526         sort_sections (s->output_section_statement.children.head);
 527         break;
 528       case lang_wild_statement_enum:
 529         {
 530           lang_statement_union_type **p = &s->wild_statement.children.head;
 531           struct wildcard_list *sec;
 532
 533           for (sec = s->wild_statement.section_list; sec; sec = sec->next)
 534             {
 535               /* Is this the .idata section?  */
 536               if (sec->spec.name != NULL
 537                   && CONST_STRNEQ (sec->spec.name, ".idata"))
 538                 {
 539                   /* Sort the children.  We want to sort any objects in
 540                      the same archive.  In order to handle the case of
 541                      including a single archive multiple times, we sort
 542                      all the children by archive name and then by object
 543                      name.  After sorting them, we re-thread the pointer
 544                      chain.  */
 545
 546                   while (*p)
 547                     {
 548                       lang_statement_union_type *start = *p;
 549                       if (start->header.type != lang_input_section_enum
 550                           || !start->input_section.section->owner->my_archive)
 551                         p = &(start->header.next);
 552                       else
 553                         {
 554                           lang_statement_union_type *end;
 555                           int count;
 556
 557                           for (end = start, count = 0;
 558                                end && (end->header.type
 559                                        == lang_input_section_enum);
 560                                end = end->header.next)
 561                             count++;
 562
 563                           p = sort_sections_1 (p, end, count,
 564                                                sort_by_file_name);
 565                         }
 566                     }
 567                   break;
 568                 }
 569
 570               /* If this is a collection of grouped sections, sort them.
 571                  The linker script must explicitly mention "*(.foo\$)" or
 572                  "*(.foo\$*)".  Don't sort them if \$ is not the last
 573                  character (not sure if this is really useful, but it
 574                  allows explicitly mentioning some \$ sections and letting
 575                  the linker handle the rest).  */
 576               if (sec->spec.name != NULL)
 577                 {
 578                   char *q = strchr (sec->spec.name, '\$');
 579
 580                   if (q != NULL
 581                       && (q[1] == '\0'
 582                           || (q[1] == '*' && q[2] == '\0')))
 583                     {
 584                       lang_statement_union_type *end;
 585                       int count;
 586
 587                       for (end = *p, count = 0; end; end = end->header.next)
 588                         {
 589                           if (end->header.type != lang_input_section_enum)
 590                             abort ();
 591                           count++;
 592                         }
 593                       (void) sort_sections_1 (p, end, count,
 594                                               sort_by_section_name);
 595                     }
 596                   break;
 597                 }
 598             }
 599         }
 600         break;
 601       default:
 602         break;
 603       }
 604 }
 605
 606 static void
 607 gld_${EMULATION_NAME}_before_allocation (void)
 608 {
 609 #ifdef TARGET_IS_ppcpe
 610   /* Here we rummage through the found bfds to collect toc information */
 611   {
 612     LANG_FOR_EACH_INPUT_STATEMENT (is)
 613       {
 614         if (!ppc_process_before_allocation(is->the_bfd, &link_info))
 615           {
 616             einfo("Errors encountered processing file %s\n", is->filename);
 617           }
 618       }
 619   }
 620
 621   /* We have seen it all. Allocate it, and carry on */
 622   ppc_allocate_toc_section (&link_info);
 623 #else
 624 #ifdef TARGET_IS_armpe
 625   /* FIXME: we should be able to set the size of the interworking stub
 626      section.
 627
 628      Here we rummage through the found bfds to collect glue
 629      information.  FIXME: should this be based on a command line
 630      option?  krk@cygnus.com */
 631   {
 632     LANG_FOR_EACH_INPUT_STATEMENT (is)
 633       {
 634         if (!arm_process_before_allocation (is->the_bfd, & link_info))
 635           {
 636             einfo ("Errors encountered processing file %s", is->filename);
 637           }
 638       }
 639   }
 640
 641   /* We have seen it all. Allocate it, and carry on */
 642   arm_allocate_interworking_sections (& link_info);
 643 #endif /* TARGET_IS_armpe */
 644 #endif /* TARGET_IS_ppcpe */
 645
 646   sort_sections (stat_ptr->head);
 647
 648   before_allocation_default ();
 649 }
 650 \f
 651 /* Place an orphan section.  We use this to put sections with a '\$' in them
 652    into the right place.  Any section with a '\$' in them (e.g. .text\$foo)
 653    gets mapped to the output section with everything from the '\$' on stripped
 654    (e.g. .text).
 655    See the Microsoft Portable Executable and Common Object File Format
 656    Specification 4.1, section 4.2, Grouped Sections.
 657
 658    FIXME: This is now handled by the linker script using wildcards,
 659    but I'm leaving this here in case we want to enable it for sections
 660    which are not mentioned in the linker script.  */
 661
 662 static lang_output_section_statement_type *
 663 gld${EMULATION_NAME}_place_orphan (asection *s,
 664                                    const char *secname,
 665                                    int constraint)
 666 {
 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 NULL;
 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 NULL;
 680
 681   /* Everything from the '\$' on gets deleted so don't allow '\$' as the
 682      first character.  */
 683   if (*secname == '\$')
 684     einfo ("%P%F: section %s has '\$' as first character\n", secname);
 685   if (strchr (secname + 1, '\$') == NULL)
 686     return NULL;
 687
 688   /* Look up the output section.  The Microsoft specs say sections names in
 689      image files never contain a '\$'.  Fortunately, lang_..._lookup creates
 690      the section if it doesn't exist.  */
 691   output_secname = xstrdup (secname);
 692   ps = strchr (output_secname + 1, '\$');
 693   *ps = 0;
 694   os = lang_output_section_statement_lookup (output_secname, constraint, TRUE);
 695
 696   /* Find the '\$' wild statement for this section.  We currently require the
 697      linker script to explicitly mention "*(.foo\$)".
 698      FIXME: ppcpe.sc has .CRT\$foo in the .rdata section.  According to the
 699      Microsoft docs this isn't correct so it's not (currently) handled.  */
 700
 701   ps[0] = '\$';
 702   ps[1] = 0;
 703   for (l = os->children.head; l; l = l->header.next)
 704     if (l->header.type == lang_wild_statement_enum)
 705       {
 706         struct wildcard_list *sec;
 707
 708         for (sec = l->wild_statement.section_list; sec; sec = sec->next)
 709           if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0)
 710             break;
 711         if (sec)
 712           break;
 713       }
 714   ps[0] = 0;
 715   if (l == NULL)
 716     einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname);
 717
 718   /* Link the input section in and we're done for now.
 719      The sections still have to be sorted, but that has to wait until
 720      all such sections have been processed by us.  The sorting is done by
 721      sort_sections.  */
 722   lang_add_section (&l->wild_statement.children, s, os);
 723
 724   return os;
 725 }
 726 \f
 727 static char *
 728 gld_${EMULATION_NAME}_get_script (int *isfile)
 729 EOF
 730 # Scripts compiled in.
 731 # sed commands to quote an ld script as a C string.
 732 sc="-f stringify.sed"
 733
 734 fragment <<EOF
 735 {
 736   *isfile = 0;
 737
 738   if (link_info.relocatable && config.build_constructors)
 739     return
 740 EOF
 741 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
 742 echo '  ; else if (link_info.relocatable) return'     >> e${EMULATION_NAME}.c
 743 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 744 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 745 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 746 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 747 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 748 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 749 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 750 echo '; }'                                             >> e${EMULATION_NAME}.c
 751
 752 fragment <<EOF
 753
 754
 755 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 756 {
 757   gld_${EMULATION_NAME}_before_parse,
 758   syslib_default,
 759   hll_default,
 760   after_parse_default,
 761   gld_${EMULATION_NAME}_after_open,
 762   after_allocation_default,
 763   set_output_arch_default,
 764   ldemul_default_target,
 765   gld_${EMULATION_NAME}_before_allocation,
 766   gld_${EMULATION_NAME}_get_script,
 767   "${EMULATION_NAME}",
 768   "${OUTPUT_FORMAT}",
 769   finish_default,
 770   NULL, /* create output section statements */
 771   NULL, /* open dynamic archive */
 772   gld${EMULATION_NAME}_place_orphan,
 773   gld_${EMULATION_NAME}_set_symbols,
 774   NULL, /* parse_args */
 775   gld${EMULATION_NAME}_add_options,
 776   gld${EMULATION_NAME}_handle_option,
 777   NULL, /* unrecognized file */
 778   NULL, /* list options */
 779   NULL, /* recognized file */
 780   NULL, /* find_potential_libraries */
 781   NULL  /* new_vers_pattern */
 782 };
 783 EOF