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 (C) 1995-2020 Free Software Foundation, Inc.
  11
  12    This file is part of the GNU Binutils.
  13
  14    This program is free software; you can redistribute it and/or modify
  15    it under the terms of the GNU General Public License as published by
  16    the Free Software Foundation; either version 3 of the License, or
  17    (at your option) any later version.
  18
  19    This program is distributed in the hope that it will be useful,
  20    but WITHOUT ANY WARRANTY; without even the implied warranty of
  21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22    GNU General Public License for more details.
  23
  24    You should have received a copy of the GNU General Public License
  25    along with this program; if not, write to the Free Software
  26    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  27    MA 02110-1301, USA.  */
  28
  29
  30 /* For WINDOWS_NT */
  31 /* The original file generated returned different default scripts depending
  32    on whether certain switches were set, but these switches pertain to the
  33    Linux system and that particular version of coff.  In the NT case, we
  34    only determine if the subsystem is console or windows in order to select
  35    the correct entry point by default. */
  36
  37 #include "sysdep.h"
  38 #include "bfd.h"
  39 #include "bfdlink.h"
  40 #include "ctf-api.h"
  41 #include "getopt.h"
  42 #include "libiberty.h"
  43 #include "filenames.h"
  44 #include "ld.h"
  45 #include "ldmain.h"
  46 #include "ldexp.h"
  47 #include "ldlang.h"
  48 #include "ldfile.h"
  49 #include "ldemul.h"
  50 #include <ldgram.h>
  51 #include "ldlex.h"
  52 #include "ldmisc.h"
  53 #include "ldctor.h"
  54 #include "coff/internal.h"
  55 #include "../bfd/libcoff.h"
  56
  57 #define TARGET_IS_${EMULATION_NAME}
  58
  59 static struct internal_extra_pe_aouthdr pe;
  60 static int dll;
  61
  62 extern const char *output_filename;
  63
  64 static void
  65 gld_${EMULATION_NAME}_before_parse (void)
  66 {
  67   ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
  68   output_filename = "a.exe";
  69 }
  70 \f
  71 /* PE format extra command line options.  */
  72
  73 /* Used for setting flags in the PE header. */
  74 #define OPTION_BASE_FILE                (300  + 1)
  75 #define OPTION_DLL                      (OPTION_BASE_FILE + 1)
  76 #define OPTION_FILE_ALIGNMENT           (OPTION_DLL + 1)
  77 #define OPTION_IMAGE_BASE               (OPTION_FILE_ALIGNMENT + 1)
  78 #define OPTION_MAJOR_IMAGE_VERSION      (OPTION_IMAGE_BASE + 1)
  79 #define OPTION_MAJOR_OS_VERSION         (OPTION_MAJOR_IMAGE_VERSION + 1)
  80 #define OPTION_MAJOR_SUBSYSTEM_VERSION  (OPTION_MAJOR_OS_VERSION + 1)
  81 #define OPTION_MINOR_IMAGE_VERSION      (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
  82 #define OPTION_MINOR_OS_VERSION         (OPTION_MINOR_IMAGE_VERSION + 1)
  83 #define OPTION_MINOR_SUBSYSTEM_VERSION  (OPTION_MINOR_OS_VERSION + 1)
  84 #define OPTION_SECTION_ALIGNMENT        (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
  85 #define OPTION_STACK                    (OPTION_SECTION_ALIGNMENT + 1)
  86 #define OPTION_SUBSYSTEM                (OPTION_STACK + 1)
  87 #define OPTION_HEAP                     (OPTION_SUBSYSTEM + 1)
  88
  89 static void
  90 gld${EMULATION_NAME}_add_options
  91   (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
  92    struct option **longopts, int nrl ATTRIBUTE_UNUSED,
  93    struct option **really_longopts ATTRIBUTE_UNUSED)
  94 {
  95   static const struct option xtra_long[] = {
  96     /* PE options */
  97     {"base-file", required_argument, NULL, OPTION_BASE_FILE},
  98     {"dll", no_argument, NULL, OPTION_DLL},
  99     {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
 100     {"heap", required_argument, NULL, OPTION_HEAP},
 101     {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
 102     {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
 103     {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
 104     {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
 105     {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
 106     {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
 107     {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
 108     {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
 109     {"stack", required_argument, NULL, OPTION_STACK},
 110     {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
 111     {NULL, no_argument, NULL, 0}
 112   };
 113
 114   *longopts = (struct option *)
 115     xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
 116   memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
 117 }
 118
 119
 120 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
 121    parameters which may be input from the command line */
 122
 123 typedef struct {
 124   void *ptr;
 125   int size;
 126   int value;
 127   char *symbol;
 128   int inited;
 129 } definfo;
 130
 131 #define D(field,symbol,def)  {&pe.field,sizeof(pe.field), def, symbol,0}
 132
 133 static definfo init[] =
 134 {
 135   /* imagebase must be first */
 136 #define IMAGEBASEOFF 0
 137   D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE),
 138 #define DLLOFF 1
 139   {&dll, sizeof(dll), 0, "__dll__", 0},
 140   D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
 141   D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
 142   D(MajorOperatingSystemVersion,"__major_os_version__", 4),
 143   D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
 144   D(MajorImageVersion,"__major_image_version__", 1),
 145   D(MinorImageVersion,"__minor_image_version__", 0),
 146   D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
 147   D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
 148   D(Subsystem,"__subsystem__", 3),
 149   D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
 150   D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
 151   D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
 152   D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
 153   D(LoaderFlags,"__loader_flags__", 0x0),
 154   { NULL, 0, 0, NULL, 0 }
 155 };
 156
 157
 158 static void
 159 set_pe_name (char *name, long val)
 160 {
 161   int i;
 162   /* Find the name and set it. */
 163   for (i = 0; init[i].ptr; i++)
 164     {
 165       if (strcmp (name, init[i].symbol) == 0)
 166         {
 167           init[i].value = val;
 168           init[i].inited = 1;
 169           return;
 170         }
 171     }
 172   abort();
 173 }
 174
 175
 176 static void
 177 set_pe_subsystem (void)
 178 {
 179   const char *sver;
 180   int len;
 181   int i;
 182   static const struct
 183     {
 184       const char *name;
 185       const int value;
 186       const char *entry;
 187     }
 188   v[] =
 189     {
 190       { "native", 1, "_NtProcessStartup" },
 191       { "windows", 2, "_WinMainCRTStartup" },
 192       { "wwindows", 2, "_wWinMainCRTStartup" },
 193       { "console", 3, "_mainCRTStartup" },
 194       { "wconsole", 3, "_wmainCRTStartup" },
 195       { "posix", 7, "___PosixProcessStartup"},
 196       { 0, 0, 0 }
 197     };
 198
 199   sver = strchr (optarg, ':');
 200   if (sver == NULL)
 201     len = strlen (optarg);
 202   else
 203     {
 204       char *end;
 205
 206       len = sver - optarg;
 207       set_pe_name ("__major_subsystem_version__",
 208                    strtoul (sver + 1, &end, 0));
 209       if (*end == '.')
 210         set_pe_name ("__minor_subsystem_version__",
 211                      strtoul (end + 1, &end, 0));
 212       if (*end != '\0')
 213         einfo (_("%P: warning: bad version number in -subsystem option\n"));
 214     }
 215
 216   for (i = 0; v[i].name; i++)
 217     {
 218       if (strncmp (optarg, v[i].name, len) == 0
 219           && v[i].name[len] == '\0')
 220         {
 221           set_pe_name ("__subsystem__", v[i].value);
 222
 223           /* If the subsystem is windows, we use a different entry
 224              point.  */
 225           lang_default_entry (v[i].entry);
 226
 227           return;
 228         }
 229     }
 230   einfo (_("%F%P: invalid subsystem type %s\n"), optarg);
 231 }
 232
 233
 234 static void
 235 set_pe_value (char *name)
 236 {
 237   char *end;
 238   set_pe_name (name,  strtoul (optarg, &end, 0));
 239   if (end == optarg)
 240     {
 241       einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg);
 242     }
 243
 244   optarg = end;
 245 }
 246
 247 static void
 248 set_pe_stack_heap (char *resname, char *comname)
 249 {
 250   set_pe_value (resname);
 251   if (*optarg == ',')
 252     {
 253       optarg++;
 254       set_pe_value (comname);
 255     }
 256   else if (*optarg)
 257     {
 258       einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg);
 259     }
 260 }
 261
 262
 263 static bfd_boolean
 264 gld${EMULATION_NAME}_handle_option (int optc)
 265 {
 266   switch (optc)
 267     {
 268     default:
 269       return FALSE;
 270
 271     case OPTION_BASE_FILE:
 272       link_info.base_file = fopen (optarg, FOPEN_WB);
 273       if (link_info.base_file == NULL)
 274         einfo (_("%F%P: cannot open base file %s\n"), optarg);
 275       break;
 276
 277       /* PE options */
 278     case OPTION_HEAP:
 279       set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
 280       break;
 281     case OPTION_STACK:
 282       set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
 283       break;
 284     case OPTION_SUBSYSTEM:
 285       set_pe_subsystem ();
 286       break;
 287     case OPTION_MAJOR_OS_VERSION:
 288       set_pe_value ("__major_os_version__");
 289       break;
 290     case OPTION_MINOR_OS_VERSION:
 291       set_pe_value ("__minor_os_version__");
 292       break;
 293     case OPTION_MAJOR_SUBSYSTEM_VERSION:
 294       set_pe_value ("__major_subsystem_version__");
 295       break;
 296     case OPTION_MINOR_SUBSYSTEM_VERSION:
 297       set_pe_value ("__minor_subsystem_version__");
 298       break;
 299     case OPTION_MAJOR_IMAGE_VERSION:
 300       set_pe_value ("__major_image_version__");
 301       break;
 302     case OPTION_MINOR_IMAGE_VERSION:
 303       set_pe_value ("__minor_image_version__");
 304       break;
 305     case OPTION_FILE_ALIGNMENT:
 306       set_pe_value ("__file_alignment__");
 307       break;
 308     case OPTION_SECTION_ALIGNMENT:
 309       set_pe_value ("__section_alignment__");
 310       break;
 311     case OPTION_DLL:
 312       set_pe_name ("__dll__", 1);
 313       break;
 314     case OPTION_IMAGE_BASE:
 315       set_pe_value ("__image_base__");
 316       break;
 317     }
 318   return TRUE;
 319 }
 320 \f
 321 /* Assign values to the special symbols before the linker script is
 322    read.  */
 323
 324 static void
 325 gld_${EMULATION_NAME}_set_symbols (void)
 326 {
 327   /* Run through and invent symbols for all the
 328      names and insert the defaults. */
 329   int j;
 330
 331   if (!init[IMAGEBASEOFF].inited)
 332     {
 333       if (bfd_link_relocatable (&link_info))
 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 (bfd_link_relocatable (&link_info))
 343     return;
 344
 345   /* Glue the assignments into the abs section */
 346   push_stat_ptr (&abs_output_section->children);
 347
 348   for (j = 0; init[j].ptr; j++)
 349     {
 350       long val = init[j].value;
 351       lang_add_assignment (exp_assign (init[j].symbol, exp_intop (val),
 352                                        FALSE));
 353       if (init[j].size == sizeof(short))
 354         *(short *)init[j].ptr = val;
 355       else if (init[j].size == sizeof(int))
 356         *(int *)init[j].ptr = val;
 357       else if (init[j].size == sizeof(long))
 358         *(long *)init[j].ptr = val;
 359       /* This might be a long long or other special type.  */
 360       else if (init[j].size == sizeof(bfd_vma))
 361         *(bfd_vma *)init[j].ptr = val;
 362       else      abort();
 363     }
 364   /* Restore the pointer. */
 365   pop_stat_ptr ();
 366
 367   if (pe.FileAlignment >
 368       pe.SectionAlignment)
 369     {
 370       einfo (_("%P: warning, file alignment > section alignment\n"));
 371     }
 372 }
 373
 374 static void
 375 gld_${EMULATION_NAME}_after_open (void)
 376 {
 377   after_open_default ();
 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_input_section_type *const *ra = a;
 398   const lang_input_section_type *const *rb = b;
 399   asection *sa = (*ra)->section;
 400   asection *sb = (*rb)->section;
 401   int i, a_sec, b_sec;
 402
 403   i = filename_cmp (sa->owner->my_archive->filename,
 404                     sb->owner->my_archive->filename);
 405   if (i != 0)
 406     return i;
 407
 408   i = filename_cmp (sa->owner->filename, sb->owner->filename);
 409   if (i != 0)
 410     return i;
 411   /* the tail idata4/5 are the only ones without relocs to an
 412      idata$6 section unless we are importing by ordinal,
 413      so sort them to last to terminate the IAT
 414      and HNT properly. if no reloc this one is import by ordinal
 415      so we have to sort by section contents */
 416
 417   if (sa->reloc_count + sb->reloc_count != 0)
 418     {
 419       i = sa->reloc_count > sb->reloc_count ? -1 : 0;
 420       if (i != 0)
 421         return i;
 422
 423       return sa->reloc_count > sb->reloc_count ? 0 : 1;
 424     }
 425   else
 426     {
 427       /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
 428       if ((strcmp (sa->name, ".idata$6") == 0))
 429         return 0;
 430
 431       if (!bfd_get_section_contents (sa->owner, sa, &a_sec, (file_ptr) 0,
 432                                      (bfd_size_type) sizeof (a_sec)))
 433         einfo (_("%F%P: %pB: can't read contents of section .idata: %E\n"),
 434                sa->owner);
 435
 436       if (!bfd_get_section_contents (sb->owner, sb, &b_sec, (file_ptr) 0,
 437                                      (bfd_size_type) sizeof (b_sec)))
 438         einfo (_("%F%P: %pB: can't read contents of section .idata: %E\n"),
 439                sb->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_input_section_type *const *ra = a;
 453   const lang_input_section_type *const *rb = b;
 454   const char *sna = (*ra)->section->name;
 455   const char *snb = (*rb)->section->name;
 456   int i;
 457   i = strcmp (sna, snb);
 458   /* This is a hack to make .stab and .stabstr last, so we don't have
 459      to fix strip/objcopy for .reloc sections.
 460      FIXME stripping images with a .rsrc section still needs to be fixed.  */
 461   if (i != 0)
 462     {
 463       if ((CONST_STRNEQ (sna, ".stab"))
 464           && (!CONST_STRNEQ (snb, ".stab")))
 465         return 1;
 466     }
 467   return i;
 468 }
 469
 470 /* Subroutine of sort_sections to a contiguous subset of a list of sections.
 471    NEXT_AFTER is the element after the last one to sort.
 472    The result is a pointer to the last element's "next" pointer.  */
 473
 474 static lang_statement_union_type **
 475 sort_sections_1 (lang_statement_union_type **startptr,
 476                  lang_statement_union_type *next_after,
 477                  int count,
 478                  int (*sort_func) (const void *, const void *))
 479 {
 480   lang_statement_union_type **vec;
 481   lang_statement_union_type *p;
 482   int i;
 483   lang_statement_union_type **ret;
 484
 485   if (count == 0)
 486     return startptr;
 487
 488   vec = ((lang_statement_union_type **)
 489          xmalloc (count * sizeof (lang_statement_union_type *)));
 490
 491   for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
 492     vec[i] = p;
 493
 494   qsort (vec, count, sizeof (vec[0]), sort_func);
 495
 496   /* Fill in the next pointers again. */
 497   *startptr = vec[0];
 498   for (i = 0; i < count - 1; i++)
 499     vec[i]->header.next = vec[i + 1];
 500   vec[i]->header.next = next_after;
 501   ret = &vec[i]->header.next;
 502   free (vec);
 503   return ret;
 504 }
 505
 506 /* Sort the .idata\$foo input sections of archives into filename order.
 507    The reason is so dlltool can arrange to have the pe dll import information
 508    generated correctly - the head of the list goes into dh.o, the tail into
 509    dt.o, and the guts into ds[nnnn].o.  Note that this is only needed for the
 510    .idata section.
 511    FIXME: This may no longer be necessary with grouped sections.  Instead of
 512    sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
 513    .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
 514    This would have to be elaborated upon to handle multiple dll's
 515    [assuming such an eloboration is possible of course].
 516
 517    We also sort sections in '\$' wild statements.  These are created by the
 518    place_orphans routine to implement grouped sections.  */
 519
 520 static void
 521 sort_sections (lang_statement_union_type *s)
 522 {
 523   for (; s ; s = s->header.next)
 524     switch (s->header.type)
 525       {
 526       case lang_output_section_statement_enum:
 527         sort_sections (s->output_section_statement.children.head);
 528         break;
 529       case lang_wild_statement_enum:
 530         {
 531           lang_statement_union_type **p = &s->wild_statement.children.head;
 532           struct wildcard_list *sec;
 533
 534           for (sec = s->wild_statement.section_list; sec; sec = sec->next)
 535             {
 536               /* Is this the .idata section?  */
 537               if (sec->spec.name != NULL
 538                   && CONST_STRNEQ (sec->spec.name, ".idata"))
 539                 {
 540                   /* Sort the children.  We want to sort any objects in
 541                      the same archive.  In order to handle the case of
 542                      including a single archive multiple times, we sort
 543                      all the children by archive name and then by object
 544                      name.  After sorting them, we re-thread the pointer
 545                      chain.  */
 546
 547                   while (*p)
 548                     {
 549                       lang_statement_union_type *start = *p;
 550                       if (start->header.type != lang_input_section_enum
 551                           || !start->input_section.section->owner->my_archive)
 552                         p = &(start->header.next);
 553                       else
 554                         {
 555                           lang_statement_union_type *end;
 556                           int count;
 557
 558                           for (end = start, count = 0;
 559                                end && (end->header.type
 560                                        == lang_input_section_enum);
 561                                end = end->header.next)
 562                             count++;
 563
 564                           p = sort_sections_1 (p, end, count,
 565                                                sort_by_file_name);
 566                         }
 567                     }
 568                   break;
 569                 }
 570
 571               /* If this is a collection of grouped sections, sort them.
 572                  The linker script must explicitly mention "*(.foo\$)" or
 573                  "*(.foo\$*)".  Don't sort them if \$ is not the last
 574                  character (not sure if this is really useful, but it
 575                  allows explicitly mentioning some \$ sections and letting
 576                  the linker handle the rest).  */
 577               if (sec->spec.name != NULL)
 578                 {
 579                   char *q = strchr (sec->spec.name, '\$');
 580
 581                   if (q != NULL
 582                       && (q[1] == '\0'
 583                           || (q[1] == '*' && q[2] == '\0')))
 584                     {
 585                       lang_statement_union_type *end;
 586                       int count;
 587
 588                       for (end = *p, count = 0; end; end = end->header.next)
 589                         {
 590                           if (end->header.type != lang_input_section_enum)
 591                             abort ();
 592                           count++;
 593                         }
 594                       (void) sort_sections_1 (p, end, count,
 595                                               sort_by_section_name);
 596                     }
 597                   break;
 598                 }
 599             }
 600         }
 601         break;
 602       default:
 603         break;
 604       }
 605 }
 606
 607 static void
 608 gld_${EMULATION_NAME}_before_allocation (void)
 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 (_("%P: errors encountered processing file %s\n"),
 618                  is->filename);
 619         }
 620     }
 621   }
 622
 623   /* We have seen it all. Allocate it, and carry on */
 624   ppc_allocate_toc_section (&link_info);
 625 #else
 626 #ifdef TARGET_IS_armpe
 627   /* FIXME: we should be able to set the size of the interworking stub
 628      section.
 629
 630      Here we rummage through the found bfds to collect glue
 631      information.  FIXME: should this be based on a command line
 632      option?  krk@cygnus.com */
 633   {
 634     LANG_FOR_EACH_INPUT_STATEMENT (is)
 635     {
 636       if (!arm_process_before_allocation (is->the_bfd, & link_info))
 637         {
 638           einfo (_("%P: errors encountered processing file %s\n"),
 639                  is->filename);
 640         }
 641     }
 642   }
 643
 644   /* We have seen it all. Allocate it, and carry on */
 645   arm_allocate_interworking_sections (& link_info);
 646 #endif /* TARGET_IS_armpe */
 647 #endif /* TARGET_IS_ppcpe */
 648
 649   sort_sections (stat_ptr->head);
 650
 651   before_allocation_default ();
 652 }
 653 \f
 654 /* Place an orphan section.  We use this to put sections with a '\$' in them
 655    into the right place.  Any section with a '\$' in them (e.g. .text\$foo)
 656    gets mapped to the output section with everything from the '\$' on stripped
 657    (e.g. .text).
 658    See the Microsoft Portable Executable and Common Object File Format
 659    Specification 4.1, section 4.2, Grouped Sections.
 660
 661    FIXME: This is now handled by the linker script using wildcards,
 662    but I'm leaving this here in case we want to enable it for sections
 663    which are not mentioned in the linker script.  */
 664
 665 static lang_output_section_statement_type *
 666 gld${EMULATION_NAME}_place_orphan (asection *s,
 667                                    const char *secname,
 668                                    int constraint)
 669 {
 670   char *output_secname, *ps;
 671   lang_output_section_statement_type *os;
 672   lang_statement_union_type *l;
 673
 674   if ((s->flags & SEC_ALLOC) == 0)
 675     return NULL;
 676
 677   /* Don't process grouped sections unless doing a final link.
 678      If they're marked as COMDAT sections, we don't want .text\$foo to
 679      end up in .text and then have .text disappear because it's marked
 680      link-once-discard.  */
 681   if (bfd_link_relocatable (&link_info))
 682     return NULL;
 683
 684   /* Everything from the '\$' on gets deleted so don't allow '\$' as the
 685      first character.  */
 686   if (*secname == '\$')
 687     einfo (_("%F%P: section %s has '\$' as first character\n"), secname);
 688   if (strchr (secname + 1, '\$') == NULL)
 689     return NULL;
 690
 691   /* Look up the output section.  The Microsoft specs say sections names in
 692      image files never contain a '\$'.  Fortunately, lang_..._lookup creates
 693      the section if it doesn't exist.  */
 694   output_secname = xstrdup (secname);
 695   ps = strchr (output_secname + 1, '\$');
 696   *ps = 0;
 697   os = lang_output_section_statement_lookup (output_secname, constraint, TRUE);
 698
 699   /* Find the '\$' wild statement for this section.  We currently require the
 700      linker script to explicitly mention "*(.foo\$)".
 701      FIXME: ppcpe.sc has .CRT\$foo in the .rdata section.  According to the
 702      Microsoft docs this isn't correct so it's not (currently) handled.  */
 703
 704   ps[0] = '\$';
 705   ps[1] = 0;
 706   for (l = os->children.head; l; l = l->header.next)
 707     if (l->header.type == lang_wild_statement_enum)
 708       {
 709         struct wildcard_list *sec;
 710
 711         for (sec = l->wild_statement.section_list; sec; sec = sec->next)
 712           if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0)
 713             break;
 714         if (sec)
 715           break;
 716       }
 717   ps[0] = 0;
 718   if (l == NULL)
 719     einfo (_("%F%P: *(%s\$) missing from linker script\n"), output_secname);
 720
 721   /* Link the input section in and we're done for now.
 722      The sections still have to be sorted, but that has to wait until
 723      all such sections have been processed by us.  The sorting is done by
 724      sort_sections.  */
 725   lang_add_section (&l->wild_statement.children, s, NULL, os);
 726
 727   return os;
 728 }
 729 \f
 730 static char *
 731 gld_${EMULATION_NAME}_get_script (int *isfile)
 732 EOF
 733 # Scripts compiled in.
 734 # sed commands to quote an ld script as a C string.
 735 sc="-f stringify.sed"
 736
 737 fragment <<EOF
 738 {
 739   *isfile = 0;
 740
 741   if (bfd_link_relocatable (&link_info) && config.build_constructors)
 742     return
 743 EOF
 744 sed $sc ldscripts/${EMULATION_NAME}.xu                 >> e${EMULATION_NAME}.c
 745 echo '  ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
 746 sed $sc ldscripts/${EMULATION_NAME}.xr                 >> e${EMULATION_NAME}.c
 747 echo '  ; else if (!config.text_read_only) return'     >> e${EMULATION_NAME}.c
 748 sed $sc ldscripts/${EMULATION_NAME}.xbn                >> e${EMULATION_NAME}.c
 749 echo '  ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
 750 sed $sc ldscripts/${EMULATION_NAME}.xn                 >> e${EMULATION_NAME}.c
 751 echo '  ; else return'                                 >> e${EMULATION_NAME}.c
 752 sed $sc ldscripts/${EMULATION_NAME}.x                  >> e${EMULATION_NAME}.c
 753 echo '; }'                                             >> e${EMULATION_NAME}.c
 754
 755 fragment <<EOF
 756
 757
 758 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 759 {
 760   gld_${EMULATION_NAME}_before_parse,
 761   syslib_default,
 762   hll_default,
 763   after_parse_default,
 764   gld_${EMULATION_NAME}_after_open,
 765   after_check_relocs_default,
 766   before_place_orphans_default,
 767   after_allocation_default,
 768   set_output_arch_default,
 769   ldemul_default_target,
 770   gld_${EMULATION_NAME}_before_allocation,
 771   gld_${EMULATION_NAME}_get_script,
 772   "${EMULATION_NAME}",
 773   "${OUTPUT_FORMAT}",
 774   finish_default,
 775   NULL, /* create output section statements */
 776   NULL, /* open dynamic archive */
 777   gld${EMULATION_NAME}_place_orphan,
 778   gld_${EMULATION_NAME}_set_symbols,
 779   NULL, /* parse_args */
 780   gld${EMULATION_NAME}_add_options,
 781   gld${EMULATION_NAME}_handle_option,
 782   NULL, /* unrecognized file */
 783   NULL, /* list options */
 784   NULL, /* recognized file */
 785   NULL, /* find_potential_libraries */
 786   NULL, /* new_vers_pattern */
 787   NULL, /* extra_map_file_text */
 788   ${LDEMUL_EMIT_CTF_EARLY-NULL},
 789   ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL},
 790   ${LDEMUL_PRINT_SYMBOL-NULL}
 791 };
 792 EOF