ld/emultempl/pep.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 rm -f e${EMULATION_NAME}.c
   9 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
  10 fragment <<EOF
  11 /* Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
  12    Written by Kai Tietz, OneVision Software GmbH&CoKg.
  13
  14    This file is part of the GNU Binutils.
  15
  16    This program is free software; you can redistribute it and/or modify
  17    it under the terms of the GNU General Public License as published by
  18    the Free Software Foundation; either version 3 of the License, or
  19    (at your option) any later version.
  20
  21    This program is distributed in the hope that it will be useful,
  22    but WITHOUT ANY WARRANTY; without even the implied warranty of
  23    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24    GNU General Public License for more details.
  25
  26    You should have received a copy of the GNU General Public License
  27    along with this program; if not, write to the Free Software
  28    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  29    MA 02110-1301, USA.  */
  30
  31
  32 /* For WINDOWS_XP64 and higher */
  33 /* Based on pe.em, but modified for 64 bit support.  */
  34
  35 #define TARGET_IS_${EMULATION_NAME}
  36
  37 #define COFF_IMAGE_WITH_PE
  38 #define COFF_WITH_PE
  39 #define COFF_WITH_pex64
  40
  41 #include "sysdep.h"
  42 #include "bfd.h"
  43 #include "bfdlink.h"
  44 #include "getopt.h"
  45 #include "libiberty.h"
  46 #include "ld.h"
  47 #include "ldmain.h"
  48 #include "ldexp.h"
  49 #include "ldlang.h"
  50 #include "ldfile.h"
  51 #include "ldemul.h"
  52 #include <ldgram.h>
  53 #include "ldlex.h"
  54 #include "ldmisc.h"
  55 #include "ldctor.h"
  56 #include "coff/internal.h"
  57
  58 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
  59    header in generic PE code.  */
  60 #include "coff/x86_64.h"
  61 #include "coff/pe.h"
  62
  63 /* FIXME: This is a BFD internal header file, and we should not be
  64    using it here.  */
  65 #include "../bfd/libcoff.h"
  66
  67 #undef  AOUTSZ
  68 #define AOUTSZ          PEPAOUTSZ
  69 #define PEAOUTHDR       PEPAOUTHDR
  70
  71 #include "deffile.h"
  72 #include "pep-dll.h"
  73 #include "safe-ctype.h"
  74
  75 /* Permit the emulation parameters to override the default section
  76    alignment by setting OVERRIDE_SECTION_ALIGNMENT.  FIXME: This makes
  77    it seem that include/coff/internal.h should not define
  78    PE_DEF_SECTION_ALIGNMENT.  */
  79 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
  80 #undef  PE_DEF_SECTION_ALIGNMENT
  81 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
  82 #endif
  83
  84 #ifdef TARGET_IS_i386pep
  85 #define DLL_SUPPORT
  86 #endif
  87
  88 #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
  89 #define PE_DEF_SUBSYSTEM                3
  90 #else
  91 #undef  NT_EXE_IMAGE_BASE
  92 #define NT_EXE_IMAGE_BASE               0x00010000
  93 #undef  PE_DEF_SECTION_ALIGNMENT
  94 #define PE_DEF_SUBSYSTEM                2
  95 #undef  PE_DEF_FILE_ALIGNMENT
  96 #define PE_DEF_FILE_ALIGNMENT           0x00000200
  97 #define PE_DEF_SECTION_ALIGNMENT        0x00000400
  98 #endif
  99
 100 static struct internal_extra_pe_aouthdr pep;
 101 static int dll;
 102 static int pep_subsystem = ${SUBSYSTEM};
 103 static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
 104 static int support_old_code = 0;
 105 static lang_assignment_statement_type *image_base_statement = 0;
 106 static unsigned short pe_dll_characteristics = 0;
 107
 108 #ifdef DLL_SUPPORT
 109 static int    pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default).  */
 110 static char * pep_out_def_filename = NULL;
 111 static char * pep_implib_filename = NULL;
 112 static int    pep_enable_auto_image_base = 0;
 113 static char * pep_dll_search_prefix = NULL;
 114 #endif
 115
 116 extern const char *output_filename;
 117
 118 static int is_underscoring (void)
 119 {
 120   int u = 0;
 121   if (pep_leading_underscore != -1)
 122     return pep_leading_underscore;
 123   if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
 124     bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
 125
 126   if (u == -1)
 127     abort ();
 128   pep_leading_underscore = (u != 0 ? 1 : 0);
 129   return pep_leading_underscore;
 130 }
 131
 132
 133 static void
 134 gld_${EMULATION_NAME}_before_parse (void)
 135 {
 136   is_underscoring ();
 137   ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
 138   output_filename = "${EXECUTABLE_NAME:-a.exe}";
 139 #ifdef DLL_SUPPORT
 140   config.dynamic_link = TRUE;
 141   config.has_shared = 1;
 142   link_info.pei386_auto_import = 1;
 143   link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2.  */
 144 #endif
 145 }
 146 \f
 147 /* PE format extra command line options.  */
 148
 149 /* Used for setting flags in the PE header.  */
 150 enum options
 151 {
 152   OPTION_BASE_FILE = 300 + 1,
 153   OPTION_DLL,
 154   OPTION_FILE_ALIGNMENT,
 155   OPTION_IMAGE_BASE,
 156   OPTION_MAJOR_IMAGE_VERSION,
 157   OPTION_MAJOR_OS_VERSION,
 158   OPTION_MAJOR_SUBSYSTEM_VERSION,
 159   OPTION_MINOR_IMAGE_VERSION,
 160   OPTION_MINOR_OS_VERSION,
 161   OPTION_MINOR_SUBSYSTEM_VERSION,
 162   OPTION_SECTION_ALIGNMENT,
 163   OPTION_STACK,
 164   OPTION_SUBSYSTEM,
 165   OPTION_HEAP,
 166   OPTION_SUPPORT_OLD_CODE,
 167   OPTION_OUT_DEF,
 168   OPTION_EXPORT_ALL,
 169   OPTION_EXCLUDE_SYMBOLS,
 170   OPTION_EXCLUDE_ALL_SYMBOLS,
 171   OPTION_KILL_ATS,
 172   OPTION_STDCALL_ALIASES,
 173   OPTION_ENABLE_STDCALL_FIXUP,
 174   OPTION_DISABLE_STDCALL_FIXUP,
 175   OPTION_IMPLIB_FILENAME,
 176   OPTION_WARN_DUPLICATE_EXPORTS,
 177   OPTION_IMP_COMPAT,
 178   OPTION_ENABLE_AUTO_IMAGE_BASE,
 179   OPTION_DISABLE_AUTO_IMAGE_BASE,
 180   OPTION_DLL_SEARCH_PREFIX,
 181   OPTION_NO_DEFAULT_EXCLUDES,
 182   OPTION_DLL_ENABLE_AUTO_IMPORT,
 183   OPTION_DLL_DISABLE_AUTO_IMPORT,
 184   OPTION_ENABLE_EXTRA_PE_DEBUG,
 185   OPTION_EXCLUDE_LIBS,
 186   OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
 187   OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
 188   OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
 189   OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
 190   OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
 191   OPTION_NO_LEADING_UNDERSCORE,
 192   OPTION_LEADING_UNDERSCORE,
 193   OPTION_ENABLE_LONG_SECTION_NAMES,
 194   OPTION_DISABLE_LONG_SECTION_NAMES,
 195   OPTION_DYNAMIC_BASE,
 196   OPTION_FORCE_INTEGRITY,
 197   OPTION_NX_COMPAT,
 198   OPTION_NO_ISOLATION,
 199   OPTION_NO_SEH,
 200   OPTION_NO_BIND,
 201   OPTION_WDM_DRIVER,
 202   OPTION_TERMINAL_SERVER_AWARE
 203 };
 204
 205 static void
 206 gld${EMULATION_NAME}_add_options
 207   (int ns ATTRIBUTE_UNUSED,
 208    char **shortopts ATTRIBUTE_UNUSED,
 209    int nl,
 210    struct option **longopts,
 211    int nrl ATTRIBUTE_UNUSED,
 212    struct option **really_longopts ATTRIBUTE_UNUSED)
 213 {
 214   static const struct option xtra_long[] =
 215   {
 216     /* PE options */
 217     {"base-file", required_argument, NULL, OPTION_BASE_FILE},
 218     {"dll", no_argument, NULL, OPTION_DLL},
 219     {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
 220     {"heap", required_argument, NULL, OPTION_HEAP},
 221     {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
 222     {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
 223     {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
 224     {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
 225     {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
 226     {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
 227     {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
 228     {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
 229     {"stack", required_argument, NULL, OPTION_STACK},
 230     {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
 231     {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
 232     {"use-nul-prefixed-import-tables", no_argument, NULL,
 233      OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
 234     {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
 235     {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
 236 #ifdef DLL_SUPPORT
 237     /* getopt allows abbreviations, so we do this to stop it
 238        from treating -o as an abbreviation for this option.  */
 239     {"output-def", required_argument, NULL, OPTION_OUT_DEF},
 240     {"output-def", required_argument, NULL, OPTION_OUT_DEF},
 241     {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
 242     {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
 243     {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
 244     {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
 245     {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
 246     {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
 247     {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
 248     {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
 249     {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
 250     {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
 251     {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
 252     /* getopt() allows abbreviations, so we do this to stop it from
 253        treating -c as an abbreviation for these --compat-implib.  */
 254     {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
 255     {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
 256     {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
 257     {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
 258     {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
 259     {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
 260     {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
 261     {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
 262     {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
 263     {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
 264     {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
 265     {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
 266 #endif
 267     {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
 268     {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
 269     {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
 270     {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
 271     {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
 272     {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
 273     {"no-seh", no_argument, NULL, OPTION_NO_SEH},
 274     {"no-bind", no_argument, NULL, OPTION_NO_BIND},
 275     {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
 276     {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
 277     {NULL, no_argument, NULL, 0}
 278   };
 279
 280   *longopts
 281     = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
 282   memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
 283 }
 284
 285 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
 286    parameters which may be input from the command line.  */
 287
 288 typedef struct
 289 {
 290   void *ptr;
 291   int size;
 292   bfd_vma value;
 293   char *symbol;
 294   int inited;
 295   /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
 296      C visible symbols can be prefixed by underscore dependent on target's
 297      settings.  */
 298   bfd_boolean is_c_symbol;
 299 } definfo;
 300
 301 #define GET_INIT_SYMBOL_NAME(IDX) \
 302   (init[(IDX)].symbol \
 303   + ((init[(IDX)].is_c_symbol == FALSE || (is_underscoring () == 1)) ? 0 : 1))
 304
 305 /* Decorates the C visible symbol by underscore, if target requires.  */
 306 #define U(CSTR) \
 307   ((is_underscoring () == 0) ? CSTR : "_" CSTR)
 308
 309 /* Get size of constant string for a possible underscore prefixed
 310    C visible symbol.  */
 311 #define U_SIZE(CSTR) \
 312   (sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1))
 313
 314 #define D(field,symbol,def,usc)  {&pep.field,sizeof(pep.field), def, symbol,0, usc}
 315
 316 static definfo init[] =
 317 {
 318   /* imagebase must be first */
 319 #define IMAGEBASEOFF 0
 320   D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
 321 #define DLLOFF 1
 322   {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
 323 #define MSIMAGEBASEOFF  2
 324   D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
 325   D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
 326   D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
 327   D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
 328   D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
 329   D(MajorImageVersion,"__major_image_version__", 0, FALSE),
 330   D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
 331   D(MajorSubsystemVersion,"__major_subsystem_version__", 5, FALSE),
 332   D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, FALSE),
 333   D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
 334   D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
 335   D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
 336   D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
 337   D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
 338   D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
 339   D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
 340   { NULL, 0, 0, NULL, 0, FALSE}
 341 };
 342
 343
 344 static void
 345 gld_${EMULATION_NAME}_list_options (FILE *file)
 346 {
 347   fprintf (file, _("  --base_file <basefile>             Generate a base file for relocatable DLLs\n"));
 348   fprintf (file, _("  --dll                              Set image base to the default for DLLs\n"));
 349   fprintf (file, _("  --file-alignment <size>            Set file alignment\n"));
 350   fprintf (file, _("  --heap <size>                      Set initial size of the heap\n"));
 351   fprintf (file, _("  --image-base <address>             Set start address of the executable\n"));
 352   fprintf (file, _("  --major-image-version <number>     Set version number of the executable\n"));
 353   fprintf (file, _("  --major-os-version <number>        Set minimum required OS version\n"));
 354   fprintf (file, _("  --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
 355   fprintf (file, _("  --minor-image-version <number>     Set revision number of the executable\n"));
 356   fprintf (file, _("  --minor-os-version <number>        Set minimum required OS revision\n"));
 357   fprintf (file, _("  --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
 358   fprintf (file, _("  --section-alignment <size>         Set section alignment\n"));
 359   fprintf (file, _("  --stack <size>                     Set size of the initial stack\n"));
 360   fprintf (file, _("  --subsystem <name>[:<version>]     Set required OS subsystem [& version]\n"));
 361   fprintf (file, _("  --support-old-code                 Support interworking with old code\n"));
 362   fprintf (file, _("  --[no-]leading-underscore          Set explicit symbol underscore prefix mode\n"));
 363 #ifdef DLL_SUPPORT
 364   fprintf (file, _("  --add-stdcall-alias                Export symbols with and without @nn\n"));
 365   fprintf (file, _("  --disable-stdcall-fixup            Don't link _sym to _sym@nn\n"));
 366   fprintf (file, _("  --enable-stdcall-fixup             Link _sym to _sym@nn without warnings\n"));
 367   fprintf (file, _("  --exclude-symbols sym,sym,...      Exclude symbols from automatic export\n"));
 368   fprintf (file, _("  --exclude-all-symbols              Exclude all symbols from automatic export\n"));
 369   fprintf (file, _("  --exclude-libs lib,lib,...         Exclude libraries from automatic export\n"));
 370   fprintf (file, _("  --exclude-modules-for-implib mod,mod,...\n"));
 371   fprintf (file, _("                                     Exclude objects, archive members from auto\n"));
 372   fprintf (file, _("                                     export, place into import library instead.\n"));
 373   fprintf (file, _("  --export-all-symbols               Automatically export all globals to DLL\n"));
 374   fprintf (file, _("  --kill-at                          Remove @nn from exported symbols\n"));
 375   fprintf (file, _("  --out-implib <file>                Generate import library\n"));
 376   fprintf (file, _("  --output-def <file>                Generate a .DEF file for the built DLL\n"));
 377   fprintf (file, _("  --warn-duplicate-exports           Warn about duplicate exports.\n"));
 378   fprintf (file, _("  --compat-implib                    Create backward compatible import libs;\n\
 379                                        create __imp_<SYMBOL> as well.\n"));
 380   fprintf (file, _("  --enable-auto-image-base           Automatically choose image base for DLLs\n\
 381                                        unless user specifies one\n"));
 382   fprintf (file, _("  --disable-auto-image-base          Do not auto-choose image base. (default)\n"));
 383   fprintf (file, _("  --dll-search-prefix=<string>       When linking dynamically to a dll without\n\
 384                                        an importlib, use <string><basename>.dll\n\
 385                                        in preference to lib<basename>.dll \n"));
 386   fprintf (file, _("  --enable-auto-import               Do sophisticated linking of _sym to\n\
 387                                        __imp_sym for DATA references\n"));
 388   fprintf (file, _("  --disable-auto-import              Do not auto-import DATA items from DLLs\n"));
 389   fprintf (file, _("  --enable-runtime-pseudo-reloc      Work around auto-import limitations by\n\
 390                                        adding pseudo-relocations resolved at\n\
 391                                        runtime.\n"));
 392   fprintf (file, _("  --disable-runtime-pseudo-reloc     Do not add runtime pseudo-relocations for\n\
 393                                        auto-imported DATA.\n"));
 394   fprintf (file, _("  --enable-extra-pep-debug            Enable verbose debug output when building\n\
 395                                        or linking to DLLs (esp. auto-import)\n"));
 396   fprintf (file, _("  --enable-long-section-names        Use long COFF section names even in\n\
 397                                        executable image files\n"));
 398   fprintf (file, _("  --disable-long-section-names       Never use long COFF section names, even\n\
 399                                        in object files\n"));
 400   fprintf (file, _("  --dynamicbase                      Image base address may be relocated using\n\
 401                                        address space layout randomization (ASLR)\n"));
 402   fprintf (file, _("  --forceinteg               Code integrity checks are enforced\n"));
 403   fprintf (file, _("  --nxcompat                 Image is compatible with data execution prevention\n"));
 404   fprintf (file, _("  --no-isolation             Image understands isolation but do not isolate the image\n"));
 405   fprintf (file, _("  --no-seh                   Image does not use SEH. No SE handler may\n\
 406                                        be called in this image\n"));
 407   fprintf (file, _("  --no-bind                  Do not bind this image\n"));
 408   fprintf (file, _("  --wdmdriver                Driver uses the WDM model\n"));
 409   fprintf (file, _("  --tsaware                  Image is Terminal Server aware\n"));
 410 #endif
 411 }
 412
 413
 414 static void
 415 set_pep_name (char *name, bfd_vma val)
 416 {
 417   int i;
 418   is_underscoring ();
 419   /* Find the name and set it.  */
 420   for (i = 0; init[i].ptr; i++)
 421     {
 422       if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
 423         {
 424           init[i].value = val;
 425           init[i].inited = 1;
 426           if (strcmp (name,"__image_base__") == 0)
 427             set_pep_name (U ("__ImageBase"), val);
 428           return;
 429         }
 430     }
 431   abort ();
 432 }
 433
 434 static void
 435 set_entry_point (void)
 436 {
 437   const char *entry;
 438   const char *initial_symbol_char;
 439   int i;
 440
 441   static const struct
 442     {
 443       const int value;
 444       const char *entry;
 445     }
 446   v[] =
 447     {
 448       { 1, "NtProcessStartup"  },
 449       { 2, "WinMainCRTStartup" },
 450       { 3, "mainCRTStartup"    },
 451       { 7, "__PosixProcessStartup" },
 452       { 9, "WinMainCRTStartup" },
 453       {14, "mainCRTStartup"    },
 454       { 0, NULL          }
 455     };
 456
 457   /* Entry point name for arbitrary subsystem numbers.  */
 458   static const char default_entry[] = "mainCRTStartup";
 459
 460   if (link_info.shared || dll)
 461     {
 462       entry = "DllMainCRTStartup";
 463     }
 464   else
 465     {
 466       for (i = 0; v[i].entry; i++)
 467         if (v[i].value == pep_subsystem)
 468           break;
 469
 470       /* If no match, use the default.  */
 471       if (v[i].entry != NULL)
 472         entry = v[i].entry;
 473       else
 474         entry = default_entry;
 475     }
 476
 477   /* Now we check target's default for getting proper symbol_char.  */
 478   initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
 479
 480   if (*initial_symbol_char != '\0')
 481     {
 482       char *alc_entry;
 483
 484       /* lang_default_entry expects its argument to be permanently
 485          allocated, so we don't free this string.  */
 486       alc_entry = xmalloc (strlen (initial_symbol_char)
 487                            + strlen (entry)
 488                            + 1);
 489       strcpy (alc_entry, initial_symbol_char);
 490       strcat (alc_entry, entry);
 491       entry = alc_entry;
 492     }
 493
 494   lang_default_entry (entry);
 495 }
 496
 497 static void
 498 set_pep_subsystem (void)
 499 {
 500   const char *sver;
 501   char *end;
 502   int len;
 503   int i;
 504   unsigned long temp_subsystem;
 505   static const struct
 506     {
 507       const char *name;
 508       const int value;
 509     }
 510   v[] =
 511     {
 512       { "native",  1 },
 513       { "windows", 2 },
 514       { "console", 3 },
 515       { "posix",   7 },
 516       { "wince",   9 },
 517       { "xbox",   14 },
 518       { NULL, 0 }
 519     };
 520
 521   /* Check for the presence of a version number.  */
 522   sver = strchr (optarg, ':');
 523   if (sver == NULL)
 524     len = strlen (optarg);
 525   else
 526     {
 527       len = sver - optarg;
 528       set_pep_name ("__major_subsystem_version__",
 529                     strtoul (sver + 1, &end, 0));
 530       if (*end == '.')
 531         set_pep_name ("__minor_subsystem_version__",
 532                       strtoul (end + 1, &end, 0));
 533       if (*end != '\0')
 534         einfo (_("%P: warning: bad version number in -subsystem option\n"));
 535     }
 536
 537   /* Check for numeric subsystem.  */
 538   temp_subsystem = strtoul (optarg, & end, 0);
 539   if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
 540     {
 541       /* Search list for a numeric match to use its entry point.  */
 542       for (i = 0; v[i].name; i++)
 543         if (v[i].value == (int) temp_subsystem)
 544           break;
 545
 546       /* Use this subsystem.  */
 547       pep_subsystem = (int) temp_subsystem;
 548     }
 549   else
 550     {
 551       /* Search for subsystem by name.  */
 552       for (i = 0; v[i].name; i++)
 553         if (strncmp (optarg, v[i].name, len) == 0
 554             && v[i].name[len] == '\0')
 555           break;
 556
 557       if (v[i].name == NULL)
 558         {
 559           einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
 560           return;
 561         }
 562
 563       pep_subsystem = v[i].value;
 564     }
 565
 566   set_pep_name ("__subsystem__", pep_subsystem);
 567
 568   return;
 569 }
 570
 571
 572 static void
 573 set_pep_value (char *name)
 574 {
 575   char *end;
 576
 577   set_pep_name (name,  (bfd_vma) strtoull (optarg, &end, 0));
 578
 579   if (end == optarg)
 580     einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
 581
 582   optarg = end;
 583 }
 584
 585
 586 static void
 587 set_pep_stack_heap (char *resname, char *comname)
 588 {
 589   set_pep_value (resname);
 590
 591   if (*optarg == ',')
 592     {
 593       optarg++;
 594       set_pep_value (comname);
 595     }
 596   else if (*optarg)
 597     einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
 598 }
 599
 600
 601 static bfd_boolean
 602 gld${EMULATION_NAME}_handle_option (int optc)
 603 {
 604   is_underscoring ();
 605   switch (optc)
 606     {
 607     default:
 608       return FALSE;
 609
 610     case OPTION_BASE_FILE:
 611       link_info.base_file = fopen (optarg, FOPEN_WB);
 612       if (link_info.base_file == NULL)
 613         {
 614           /* xgettext:c-format */
 615           fprintf (stderr, _("%s: Can't open base file %s\n"),
 616                    program_name, optarg);
 617           xexit (1);
 618         }
 619       break;
 620
 621       /* PE options.  */
 622     case OPTION_HEAP:
 623       set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
 624       break;
 625     case OPTION_STACK:
 626       set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
 627       break;
 628     case OPTION_SUBSYSTEM:
 629       set_pep_subsystem ();
 630       break;
 631     case OPTION_MAJOR_OS_VERSION:
 632       set_pep_value ("__major_os_version__");
 633       break;
 634     case OPTION_MINOR_OS_VERSION:
 635       set_pep_value ("__minor_os_version__");
 636       break;
 637     case OPTION_MAJOR_SUBSYSTEM_VERSION:
 638       set_pep_value ("__major_subsystem_version__");
 639       break;
 640     case OPTION_MINOR_SUBSYSTEM_VERSION:
 641       set_pep_value ("__minor_subsystem_version__");
 642       break;
 643     case OPTION_MAJOR_IMAGE_VERSION:
 644       set_pep_value ("__major_image_version__");
 645       break;
 646     case OPTION_MINOR_IMAGE_VERSION:
 647       set_pep_value ("__minor_image_version__");
 648       break;
 649     case OPTION_FILE_ALIGNMENT:
 650       set_pep_value ("__file_alignment__");
 651       break;
 652     case OPTION_SECTION_ALIGNMENT:
 653       set_pep_value ("__section_alignment__");
 654       break;
 655     case OPTION_DLL:
 656       set_pep_name ("__dll__", 1);
 657       break;
 658     case OPTION_IMAGE_BASE:
 659       set_pep_value ("__image_base__");
 660       break;
 661     case OPTION_SUPPORT_OLD_CODE:
 662       support_old_code = 1;
 663       break;
 664     case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
 665       pep_use_nul_prefixed_import_tables = TRUE;
 666       break;
 667     case OPTION_NO_LEADING_UNDERSCORE:
 668       pep_leading_underscore = 0;
 669       break;
 670     case OPTION_LEADING_UNDERSCORE:
 671       pep_leading_underscore = 1;
 672       break;
 673 #ifdef DLL_SUPPORT
 674     case OPTION_OUT_DEF:
 675       pep_out_def_filename = xstrdup (optarg);
 676       break;
 677     case OPTION_EXPORT_ALL:
 678       pep_dll_export_everything = 1;
 679       break;
 680     case OPTION_EXCLUDE_SYMBOLS:
 681       pep_dll_add_excludes (optarg, EXCLUDESYMS);
 682       break;
 683     case OPTION_EXCLUDE_ALL_SYMBOLS:
 684       pep_dll_exclude_all_symbols = 1;
 685       break;
 686     case OPTION_EXCLUDE_LIBS:
 687       pep_dll_add_excludes (optarg, EXCLUDELIBS);
 688       break;
 689     case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
 690       pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
 691       break;
 692     case OPTION_KILL_ATS:
 693       pep_dll_kill_ats = 1;
 694       break;
 695     case OPTION_STDCALL_ALIASES:
 696       pep_dll_stdcall_aliases = 1;
 697       break;
 698     case OPTION_ENABLE_STDCALL_FIXUP:
 699       pep_enable_stdcall_fixup = 1;
 700       break;
 701     case OPTION_DISABLE_STDCALL_FIXUP:
 702       pep_enable_stdcall_fixup = 0;
 703       break;
 704     case OPTION_IMPLIB_FILENAME:
 705       pep_implib_filename = xstrdup (optarg);
 706       break;
 707     case OPTION_WARN_DUPLICATE_EXPORTS:
 708       pep_dll_warn_dup_exports = 1;
 709       break;
 710     case OPTION_IMP_COMPAT:
 711       pep_dll_compat_implib = 1;
 712       break;
 713     case OPTION_ENABLE_AUTO_IMAGE_BASE:
 714       pep_enable_auto_image_base = 1;
 715       break;
 716     case OPTION_DISABLE_AUTO_IMAGE_BASE:
 717       pep_enable_auto_image_base = 0;
 718       break;
 719     case OPTION_DLL_SEARCH_PREFIX:
 720       pep_dll_search_prefix = xstrdup (optarg);
 721       break;
 722     case OPTION_NO_DEFAULT_EXCLUDES:
 723       pep_dll_do_default_excludes = 0;
 724       break;
 725     case OPTION_DLL_ENABLE_AUTO_IMPORT:
 726       link_info.pei386_auto_import = 1;
 727       break;
 728     case OPTION_DLL_DISABLE_AUTO_IMPORT:
 729       link_info.pei386_auto_import = 0;
 730       break;
 731     case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
 732       link_info.pei386_runtime_pseudo_reloc = 2;
 733       break;
 734     case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
 735       link_info.pei386_runtime_pseudo_reloc = 0;
 736       break;
 737     case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
 738       link_info.pei386_runtime_pseudo_reloc = 2;
 739       break;
 740     case OPTION_ENABLE_EXTRA_PE_DEBUG:
 741       pep_dll_extra_pe_debug = 1;
 742       break;
 743 #endif
 744     case OPTION_ENABLE_LONG_SECTION_NAMES:
 745       pep_use_coff_long_section_names = 1;
 746       break;
 747     case OPTION_DISABLE_LONG_SECTION_NAMES:
 748       pep_use_coff_long_section_names = 0;
 749       break;
 750     /*  Get DLLCharacteristics bits  */
 751     case OPTION_DYNAMIC_BASE:
 752       pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
 753       break;
 754     case OPTION_FORCE_INTEGRITY:
 755       pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
 756       break;
 757     case OPTION_NX_COMPAT:
 758       pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
 759       break;
 760     case OPTION_NO_ISOLATION:
 761       pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
 762       break;
 763     case OPTION_NO_SEH:
 764       pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
 765       break;
 766     case OPTION_NO_BIND:
 767       pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
 768       break;
 769     case OPTION_WDM_DRIVER:
 770       pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
 771       break;
 772     case OPTION_TERMINAL_SERVER_AWARE:
 773       pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
 774       break;
 775     }
 776
 777   /*  Set DLLCharacteristics bits  */
 778   set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
 779
 780   return TRUE;
 781 }
 782 \f
 783
 784 #ifdef DLL_SUPPORT
 785 static unsigned long
 786 strhash (const char *str)
 787 {
 788   const unsigned char *s;
 789   unsigned long hash;
 790   unsigned int c;
 791   unsigned int len;
 792
 793   hash = 0;
 794   len = 0;
 795   s = (const unsigned char *) str;
 796   while ((c = *s++) != '\0')
 797     {
 798       hash += c + (c << 17);
 799       hash ^= hash >> 2;
 800       ++len;
 801     }
 802   hash += len + (len << 17);
 803   hash ^= hash >> 2;
 804
 805   return hash;
 806 }
 807
 808 /* Use the output file to create a image base for relocatable DLLs.  */
 809
 810 static bfd_vma
 811 compute_dll_image_base (const char *ofile)
 812 {
 813   bfd_vma hash = (bfd_vma) strhash (ofile);
 814   return 0x61300000 + ((hash << 16) & 0x0FFC0000);
 815 }
 816 #endif
 817
 818 /* Assign values to the special symbols before the linker script is
 819    read.  */
 820
 821 static void
 822 gld_${EMULATION_NAME}_set_symbols (void)
 823 {
 824   /* Run through and invent symbols for all the
 825      names and insert the defaults.  */
 826   int j;
 827
 828   is_underscoring ();
 829
 830   if (!init[IMAGEBASEOFF].inited)
 831     {
 832       if (link_info.relocatable)
 833         init[IMAGEBASEOFF].value = 0;
 834       else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
 835         {
 836 #ifdef DLL_SUPPORT
 837           init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
 838                                       ? compute_dll_image_base (output_filename)
 839                                       : NT_DLL_IMAGE_BASE);
 840 #else
 841           init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
 842 #endif
 843         }
 844       else
 845         init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
 846       init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
 847     }
 848
 849   /* Don't do any symbol assignments if this is a relocatable link.  */
 850   if (link_info.relocatable)
 851     return;
 852
 853   /* Glue the assignments into the abs section.  */
 854   push_stat_ptr (&abs_output_section->children);
 855
 856   for (j = 0; init[j].ptr; j++)
 857     {
 858       bfd_vma val = init[j].value;
 859       lang_assignment_statement_type *rv;
 860
 861       rv = lang_add_assignment (exp_assop ('=', GET_INIT_SYMBOL_NAME (j),
 862                                            exp_intop (val)));
 863       if (init[j].size == sizeof (short))
 864         *(short *) init[j].ptr = (short) val;
 865       else if (init[j].size == sizeof (int))
 866         *(int *) init[j].ptr = (int) val;
 867       else if (init[j].size == sizeof (long))
 868         *(long *) init[j].ptr = (long) val;
 869       /* This might be a long long or other special type.  */
 870       else if (init[j].size == sizeof (bfd_vma))
 871         *(bfd_vma *) init[j].ptr = val;
 872       else      abort ();
 873       if (j == IMAGEBASEOFF)
 874         image_base_statement = rv;
 875     }
 876   /* Restore the pointer.  */
 877   pop_stat_ptr ();
 878
 879   if (pep.FileAlignment > pep.SectionAlignment)
 880     {
 881       einfo (_("%P: warning, file alignment > section alignment.\n"));
 882     }
 883 }
 884
 885 /* This is called after the linker script and the command line options
 886    have been read.  */
 887
 888 static void
 889 gld_${EMULATION_NAME}_after_parse (void)
 890 {
 891   /* PR ld/6744:  Warn the user if they have used an ELF-only
 892      option hoping it will work on PE+.  */
 893   if (link_info.export_dynamic)
 894     einfo (_("%P: warning: --export-dynamic is not supported for PE+ "
 895       "targets, did you mean --export-all-symbols?\n"));
 896
 897   set_entry_point ();
 898
 899   after_parse_default ();
 900 }
 901
 902 /* pep-dll.c directly accesses pep_data_import_dll,
 903    so it must be defined outside of #ifdef DLL_SUPPORT.
 904    Note - this variable is deliberately not initialised.
 905    This allows it to be treated as a common varaible, and only
 906    exist in one incarnation in a multiple target enabled linker.  */
 907 char * pep_data_import_dll;
 908
 909 #ifdef DLL_SUPPORT
 910 static struct bfd_link_hash_entry *pep_undef_found_sym;
 911
 912 static bfd_boolean
 913 pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
 914 {
 915   int sl;
 916   char *string = inf;
 917   const char *hs = h->root.string;
 918
 919   sl = strlen (string);
 920   if (h->type == bfd_link_hash_defined
 921       && ((*hs == '@' && *string == '_'
 922                    && strncmp (hs + 1, string + 1, sl - 1) == 0)
 923                   || strncmp (hs, string, sl) == 0)
 924       && h->root.string[sl] == '@')
 925     {
 926       pep_undef_found_sym = h;
 927       return FALSE;
 928     }
 929   return TRUE;
 930 }
 931
 932 static void
 933 pep_fixup_stdcalls (void)
 934 {
 935   static int gave_warning_message = 0;
 936   struct bfd_link_hash_entry *undef, *sym;
 937
 938   if (pep_dll_extra_pe_debug)
 939     printf ("%s\n", __FUNCTION__);
 940
 941   for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
 942     if (undef->type == bfd_link_hash_undefined)
 943       {
 944         char* at = strchr (undef->root.string, '@');
 945         int lead_at = (*undef->root.string == '@');
 946         if (lead_at)
 947           at = strchr (undef->root.string + 1, '@');
 948         if (at || lead_at)
 949           {
 950             /* The symbol is a stdcall symbol, so let's look for a
 951                cdecl symbol with the same name and resolve to that.  */
 952             char *cname = xstrdup (undef->root.string);
 953
 954             if (lead_at)
 955               *cname = '_';
 956             at = strchr (cname, '@');
 957             if (at)
 958               *at = 0;
 959             sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
 960
 961             if (sym && sym->type == bfd_link_hash_defined)
 962               {
 963                 undef->type = bfd_link_hash_defined;
 964                 undef->u.def.value = sym->u.def.value;
 965                 undef->u.def.section = sym->u.def.section;
 966
 967                 if (pep_enable_stdcall_fixup == -1)
 968                   {
 969                     einfo (_("Warning: resolving %s by linking to %s\n"),
 970                            undef->root.string, cname);
 971                     if (! gave_warning_message)
 972                       {
 973                         gave_warning_message = 1;
 974                         einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
 975                         einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
 976                       }
 977                   }
 978               }
 979           }
 980         else
 981           {
 982             /* The symbol is a cdecl symbol, so we look for stdcall
 983                symbols - which means scanning the whole symbol table.  */
 984             pep_undef_found_sym = 0;
 985             bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
 986                                     (char *) undef->root.string);
 987             sym = pep_undef_found_sym;
 988             if (sym)
 989               {
 990                 undef->type = bfd_link_hash_defined;
 991                 undef->u.def.value = sym->u.def.value;
 992                 undef->u.def.section = sym->u.def.section;
 993
 994                 if (pep_enable_stdcall_fixup == -1)
 995                   {
 996                     einfo (_("Warning: resolving %s by linking to %s\n"),
 997                            undef->root.string, sym->root.string);
 998                     if (! gave_warning_message)
 999                       {
1000                         gave_warning_message = 1;
1001                         einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1002                         einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1003                       }
1004                   }
1005               }
1006           }
1007       }
1008 }
1009
1010 static int
1011 make_import_fixup (arelent *rel, asection *s)
1012 {
1013   struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1014   char addend[8];
1015   bfd_vma _addend = 0;
1016   int suc = 0;
1017
1018   if (pep_dll_extra_pe_debug)
1019     printf ("arelent: %s@%#lx: add=%li\n", sym->name,
1020             (unsigned long) rel->address, (long) rel->addend);
1021
1022   memset (addend, 0, sizeof (addend));
1023   switch ((rel->howto->bitsize))
1024     {
1025       case 8:
1026         suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
1027         if (suc && rel->howto->pc_relative)
1028           _addend = (bfd_vma) ((bfd_signed_vma) ((char) bfd_get_8 (s->owner, addend)));
1029         else if (suc)
1030           _addend = ((bfd_vma) bfd_get_8 (s->owner, addend)) & 0xff;
1031         break;
1032       case 16:
1033         suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
1034         if (suc && rel->howto->pc_relative)
1035           _addend = (bfd_vma) ((bfd_signed_vma) ((short) bfd_get_16 (s->owner, addend)));
1036         else if (suc)
1037           _addend = ((bfd_vma) bfd_get_16 (s->owner, addend)) & 0xffff;
1038         break;
1039       case 32:
1040         suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
1041         if (suc && rel->howto->pc_relative)
1042           _addend = (bfd_vma) ((bfd_signed_vma) ((int) bfd_get_32 (s->owner, addend)));
1043         else if (suc)
1044           _addend = ((bfd_vma) bfd_get_32 (s->owner, addend)) & 0xffffffff;
1045         break;
1046       case 64:
1047         suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
1048         if (suc)
1049           _addend = ((bfd_vma) bfd_get_64 (s->owner, addend));
1050         break;
1051     }
1052   if (! suc)
1053     einfo (_("%C: Cannot get section contents - auto-import exception\n"),
1054            s->owner, s, rel->address);
1055
1056   if (pep_dll_extra_pe_debug)
1057     {
1058       printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", (long) _addend, (long) rel->addend, (long) rel->address);
1059       if (rel->howto->pc_relative) printf (" pcrel");
1060       printf (" %d bit rel.\n",(int) rel->howto->bitsize);
1061   }
1062   pep_create_import_fixup (rel, s, _addend);
1063
1064   return 1;
1065 }
1066
1067 static void
1068 pep_find_data_imports (void)
1069 {
1070   struct bfd_link_hash_entry *undef, *sym;
1071
1072   if (link_info.pei386_auto_import == 0)
1073     return;
1074
1075   for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1076     {
1077       if (undef->type == bfd_link_hash_undefined)
1078         {
1079           /* C++ symbols are *long*.  */
1080           char buf[4096];
1081
1082           if (pep_dll_extra_pe_debug)
1083             printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1084
1085           sprintf (buf, "__imp_%s", undef->root.string);
1086
1087           sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1088
1089           if (sym && sym->type == bfd_link_hash_defined)
1090             {
1091               bfd *b = sym->u.def.section->owner;
1092               asymbol **symbols;
1093               int nsyms, i;
1094
1095               if (!bfd_generic_link_read_symbols (b))
1096                 {
1097                   einfo (_("%B%F: could not read symbols: %E\n"), b);
1098                   return;
1099                 }
1100
1101               symbols = bfd_get_outsymbols (b);
1102               nsyms = bfd_get_symcount (b);
1103
1104               for (i = 0; i < nsyms; i++)
1105                 {
1106                   if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
1107                     continue;
1108
1109                   if (pep_dll_extra_pe_debug)
1110                     printf ("->%s\n", symbols[i]->name);
1111
1112                   pep_data_import_dll = (char*) (symbols[i]->name +
1113                                                  U_SIZE ("_head_") - 1);
1114                   break;
1115                 }
1116
1117               pep_walk_relocs_of_symbol (&link_info, undef->root.string,
1118                                          make_import_fixup);
1119
1120               /* Let's differentiate it somehow from defined.  */
1121               undef->type = bfd_link_hash_defweak;
1122               /* We replace original name with __imp_ prefixed, this
1123                  1) may trash memory 2) leads to duplicate symbol generation.
1124                  Still, IMHO it's better than having name poluted.  */
1125               undef->root.string = sym->root.string;
1126               undef->u.def.value = sym->u.def.value;
1127               undef->u.def.section = sym->u.def.section;
1128             }
1129         }
1130     }
1131 }
1132
1133 static bfd_boolean
1134 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1135 {
1136   if (pep_dll_extra_pe_debug)
1137     printf ("+%s\n", h->string);
1138
1139   return TRUE;
1140 }
1141 #endif /* DLL_SUPPORT */
1142
1143 static void
1144 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1145 {
1146   int *found = (int *) obj;
1147   if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1148     *found = 1;
1149 }
1150
1151 static void
1152 gld_${EMULATION_NAME}_after_open (void)
1153 {
1154   is_underscoring ();
1155 #ifdef DLL_SUPPORT
1156   if (pep_dll_extra_pe_debug)
1157     {
1158       bfd *a;
1159       struct bfd_link_hash_entry *sym;
1160
1161       printf ("%s()\n", __FUNCTION__);
1162
1163       for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1164         printf ("-%s\n", sym->root.string);
1165       bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1166
1167       for (a = link_info.input_bfds; a; a = a->link_next)
1168         printf ("*%s\n",a->filename);
1169     }
1170 #endif
1171
1172   /* Pass the wacky PE command line options into the output bfd.
1173      FIXME: This should be done via a function, rather than by
1174      including an internal BFD header.  */
1175
1176   if (coff_data (link_info.output_bfd) == NULL
1177       || coff_data (link_info.output_bfd)->pe == 0)
1178     einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1179            link_info.output_bfd);
1180
1181   pe_data (link_info.output_bfd)->pe_opthdr = pep;
1182   pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1183   pe_data (link_info.output_bfd)->real_flags |= real_flags;
1184
1185   /* At this point we must decide whether to use long section names
1186      in the output or not.  If the user hasn't explicitly specified
1187      on the command line, we leave it to the default for the format
1188      (object files yes, image files no), except if there is debug
1189      information present; GDB relies on the long section names to
1190      find it, so enable it in that case.  */
1191   if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1192     {
1193       /* Iterate over all sections of all input BFDs, checking
1194          for any that begin 'debug_' and are long names.  */
1195       LANG_FOR_EACH_INPUT_STATEMENT (is)
1196         {
1197           int found_debug = 0;
1198           bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1199           if (found_debug)
1200             {
1201               pep_use_coff_long_section_names = 1;
1202               break;
1203             }
1204         }
1205     }
1206
1207   pep_output_file_set_long_section_names (link_info.output_bfd);
1208
1209 #ifdef DLL_SUPPORT
1210   if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1211     pep_fixup_stdcalls ();
1212
1213   pep_process_import_defs (link_info.output_bfd, &link_info);
1214
1215   pep_find_data_imports ();
1216
1217   /* As possibly new symbols are added by imports, we rerun
1218      stdcall/fastcall fixup here.  */
1219   if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1220     pep_fixup_stdcalls ();
1221
1222 #ifndef TARGET_IS_i386pep
1223   if (link_info.shared)
1224 #else
1225   if (!link_info.relocatable)
1226 #endif
1227     pep_dll_build_sections (link_info.output_bfd, &link_info);
1228
1229 #ifndef TARGET_IS_i386pep
1230   else
1231     pep_exe_build_sections (link_info.output_bfd, &link_info);
1232 #endif
1233 #endif /* DLL_SUPPORT */
1234
1235   {
1236     /* This next chunk of code tries to detect the case where you have
1237        two import libraries for the same DLL (specifically,
1238        symbolically linking libm.a and libc.a in cygwin to
1239        libcygwin.a).  In those cases, it's possible for function
1240        thunks from the second implib to be used but without the
1241        head/tail objects, causing an improper import table.  We detect
1242        those cases and rename the "other" import libraries to match
1243        the one the head/tail come from, so that the linker will sort
1244        things nicely and produce a valid import table.  */
1245
1246     LANG_FOR_EACH_INPUT_STATEMENT (is)
1247       {
1248         if (is->the_bfd->my_archive)
1249           {
1250             int idata2 = 0, reloc_count=0, is_imp = 0;
1251             asection *sec;
1252
1253             /* See if this is an import library thunk.  */
1254             for (sec = is->the_bfd->sections; sec; sec = sec->next)
1255               {
1256                 if (strcmp (sec->name, ".idata\$2") == 0)
1257                   idata2 = 1;
1258                 if (CONST_STRNEQ (sec->name, ".idata\$"))
1259                   is_imp = 1;
1260                 reloc_count += sec->reloc_count;
1261               }
1262
1263             if (is_imp && !idata2 && reloc_count)
1264               {
1265                 /* It is, look for the reference to head and see if it's
1266                    from our own library.  */
1267                 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1268                   {
1269                     int i;
1270                     long relsize;
1271                     asymbol **symbols;
1272                     arelent **relocs;
1273                     int nrelocs;
1274
1275                     relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1276                     if (relsize < 1)
1277                       break;
1278
1279                     if (!bfd_generic_link_read_symbols (is->the_bfd))
1280                       {
1281                         einfo (_("%B%F: could not read symbols: %E\n"),
1282                                is->the_bfd);
1283                         return;
1284                       }
1285                     symbols = bfd_get_outsymbols (is->the_bfd);
1286
1287                     relocs = xmalloc ((size_t) relsize);
1288                     nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1289                                                       relocs, symbols);
1290                     if (nrelocs < 0)
1291                       {
1292                         free (relocs);
1293                         einfo ("%X%P: unable to process relocs: %E\n");
1294                         return;
1295                       }
1296
1297                     for (i = 0; i < nrelocs; i++)
1298                       {
1299                         struct bfd_symbol *s;
1300                         struct bfd_link_hash_entry * blhe;
1301                         char *other_bfd_filename;
1302                         char *n;
1303
1304                         s = (relocs[i]->sym_ptr_ptr)[0];
1305
1306                         if (s->flags & BSF_LOCAL)
1307                           continue;
1308
1309                         /* Thunk section with reloc to another bfd.  */
1310                         blhe = bfd_link_hash_lookup (link_info.hash,
1311                                                      s->name,
1312                                                      FALSE, FALSE, TRUE);
1313
1314                         if (blhe == NULL
1315                             || blhe->type != bfd_link_hash_defined)
1316                           continue;
1317
1318                         other_bfd_filename
1319                           = blhe->u.def.section->owner->my_archive
1320                             ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1321                             : bfd_get_filename (blhe->u.def.section->owner);
1322
1323                         if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1324                                     other_bfd_filename) == 0)
1325                           continue;
1326
1327                         /* Rename this implib to match the other one.  */
1328                         n = xmalloc (strlen (other_bfd_filename) + 1);
1329                         strcpy (n, other_bfd_filename);
1330                         is->the_bfd->my_archive->filename = n;
1331                       }
1332
1333                     free (relocs);
1334                     /* Note - we do not free the symbols,
1335                        they are now cached in the BFD.  */
1336                   }
1337               }
1338           }
1339       }
1340   }
1341
1342   {
1343     int is_ms_arch = 0;
1344     bfd *cur_arch = 0;
1345     lang_input_statement_type *is2;
1346     lang_input_statement_type *is3;
1347
1348     /* Careful - this is a shell script.  Watch those dollar signs! */
1349     /* Microsoft import libraries have every member named the same,
1350        and not in the right order for us to link them correctly.  We
1351        must detect these and rename the members so that they'll link
1352        correctly.  There are three types of objects: the head, the
1353        thunks, and the sentinel(s).  The head is easy; it's the one
1354        with idata2.  We assume that the sentinels won't have relocs,
1355        and the thunks will.  It's easier than checking the symbol
1356        table for external references.  */
1357     LANG_FOR_EACH_INPUT_STATEMENT (is)
1358       {
1359         if (is->the_bfd->my_archive)
1360           {
1361             char *pnt;
1362             bfd *arch = is->the_bfd->my_archive;
1363
1364             if (cur_arch != arch)
1365               {
1366                 cur_arch = arch;
1367                 is_ms_arch = 1;
1368
1369                 for (is3 = is;
1370                      is3 && is3->the_bfd->my_archive == arch;
1371                      is3 = (lang_input_statement_type *) is3->next)
1372                   {
1373                     /* A MS dynamic import library can also contain static
1374                        members, so look for the first element with a .dll
1375                        extension, and use that for the remainder of the
1376                        comparisons.  */
1377                     pnt = strrchr (is3->the_bfd->filename, '.');
1378                     if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1379                       break;
1380                   }
1381
1382                 if (is3 == NULL)
1383                   is_ms_arch = 0;
1384                 else
1385                   {
1386                     /* OK, found one.  Now look to see if the remaining
1387                        (dynamic import) members use the same name.  */
1388                     for (is2 = is;
1389                          is2 && is2->the_bfd->my_archive == arch;
1390                          is2 = (lang_input_statement_type *) is2->next)
1391                       {
1392                         /* Skip static members, ie anything with a .obj
1393                            extension.  */
1394                         pnt = strrchr (is2->the_bfd->filename, '.');
1395                         if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1396                           continue;
1397
1398                         if (strcmp (is3->the_bfd->filename,
1399                                     is2->the_bfd->filename))
1400                           {
1401                             is_ms_arch = 0;
1402                             break;
1403                           }
1404                       }
1405                   }
1406               }
1407
1408             /* This fragment might have come from an .obj file in a Microsoft
1409                import, and not an actual import record. If this is the case,
1410                then leave the filename alone.  */
1411             pnt = strrchr (is->the_bfd->filename, '.');
1412
1413             if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1414               {
1415                 int idata2 = 0, reloc_count=0;
1416                 asection *sec;
1417                 char *new_name, seq;
1418
1419                 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1420                   {
1421                     if (strcmp (sec->name, ".idata\$2") == 0)
1422                       idata2 = 1;
1423                     reloc_count += sec->reloc_count;
1424                   }
1425
1426                 if (idata2) /* .idata2 is the TOC */
1427                   seq = 'a';
1428                 else if (reloc_count > 0) /* thunks */
1429                   seq = 'b';
1430                 else /* sentinel */
1431                   seq = 'c';
1432
1433                 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1434                 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1435                 is->the_bfd->filename = new_name;
1436
1437                 new_name = xmalloc (strlen (is->filename) + 3);
1438                 sprintf (new_name, "%s.%c", is->filename, seq);
1439                 is->filename = new_name;
1440               }
1441           }
1442       }
1443   }
1444 }
1445 \f
1446 static void
1447 gld_${EMULATION_NAME}_before_allocation (void)
1448 {
1449   is_underscoring ();
1450   before_allocation_default ();
1451 }
1452 \f
1453 #ifdef DLL_SUPPORT
1454 /* This is called when an input file isn't recognized as a BFD.  We
1455    check here for .DEF files and pull them in automatically.  */
1456
1457 static int
1458 saw_option (char *option)
1459 {
1460   int i;
1461
1462   is_underscoring ();
1463
1464   for (i = 0; init[i].ptr; i++)
1465     if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1466       return init[i].inited;
1467   return 0;
1468 }
1469 #endif /* DLL_SUPPORT */
1470
1471 static bfd_boolean
1472 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1473 {
1474 #ifdef DLL_SUPPORT
1475   const char *ext = entry->filename + strlen (entry->filename) - 4;
1476
1477   if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1478     {
1479       pep_def_file = def_file_parse (entry->filename, pep_def_file);
1480
1481       if (pep_def_file)
1482         {
1483           int i, buflen=0, len;
1484           char *buf;
1485
1486           for (i = 0; i < pep_def_file->num_exports; i++)
1487             {
1488               len = strlen (pep_def_file->exports[i].internal_name);
1489               if (buflen < len + 2)
1490                 buflen = len + 2;
1491             }
1492
1493           buf = xmalloc (buflen);
1494
1495           for (i = 0; i < pep_def_file->num_exports; i++)
1496             {
1497               struct bfd_link_hash_entry *h;
1498
1499               sprintf (buf, "%s%s", U (""),
1500                        pep_def_file->exports[i].internal_name);
1501
1502               h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1503               if (h == (struct bfd_link_hash_entry *) NULL)
1504                 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1505               if (h->type == bfd_link_hash_new)
1506                 {
1507                   h->type = bfd_link_hash_undefined;
1508                   h->u.undef.abfd = NULL;
1509                   bfd_link_add_undef (link_info.hash, h);
1510                 }
1511             }
1512           free (buf);
1513
1514           /* def_file_print (stdout, pep_def_file); */
1515           if (pep_def_file->is_dll == 1)
1516             link_info.shared = 1;
1517
1518           if (pep_def_file->base_address != (bfd_vma)(-1))
1519             {
1520               pep.ImageBase
1521                 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1522                 = init[IMAGEBASEOFF].value
1523                 = pep_def_file->base_address;
1524               init[IMAGEBASEOFF].inited = 1;
1525               if (image_base_statement)
1526                 image_base_statement->exp = exp_assop ('=', "__image_base__",
1527                                                        exp_intop (pep.ImageBase));
1528             }
1529
1530           if (pep_def_file->stack_reserve != -1
1531               && ! saw_option ("__size_of_stack_reserve__"))
1532             {
1533               pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1534               if (pep_def_file->stack_commit != -1)
1535                 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1536             }
1537           if (pep_def_file->heap_reserve != -1
1538               && ! saw_option ("__size_of_heap_reserve__"))
1539             {
1540               pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1541               if (pep_def_file->heap_commit != -1)
1542                 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1543             }
1544           return TRUE;
1545         }
1546     }
1547 #endif
1548   return FALSE;
1549 }
1550
1551 static bfd_boolean
1552 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1553 {
1554   is_underscoring ();
1555 #ifdef DLL_SUPPORT
1556 #ifdef TARGET_IS_i386pep
1557   pep_dll_id_target ("pei-x86-64");
1558 #endif
1559   if (pep_bfd_is_dll (entry->the_bfd))
1560     return pep_implied_import_dll (entry->filename);
1561 #endif
1562   return FALSE;
1563 }
1564
1565 static void
1566 gld_${EMULATION_NAME}_finish (void)
1567 {
1568   is_underscoring ();
1569   finish_default ();
1570
1571 #ifdef DLL_SUPPORT
1572   if (link_info.shared
1573       || (!link_info.relocatable && pep_def_file->num_exports != 0))
1574     {
1575       pep_dll_fill_sections (link_info.output_bfd, &link_info);
1576       if (pep_implib_filename)
1577         pep_dll_generate_implib (pep_def_file, pep_implib_filename, &link_info);
1578     }
1579
1580   if (pep_out_def_filename)
1581     pep_dll_generate_def_file (pep_out_def_filename);
1582 #endif /* DLL_SUPPORT */
1583
1584   /* I don't know where .idata gets set as code, but it shouldn't be.  */
1585   {
1586     asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1587
1588     if (asec)
1589       {
1590         asec->flags &= ~SEC_CODE;
1591         asec->flags |= SEC_DATA;
1592       }
1593   }
1594 }
1595
1596 \f
1597 /* Place an orphan section.
1598
1599    We use this to put sections in a reasonable place in the file, and
1600    to ensure that they are aligned as required.
1601
1602    We handle grouped sections here as well.  A section named .foo\$nn
1603    goes into the output section .foo.  All grouped sections are sorted
1604    by name.
1605
1606    Grouped sections for the default sections are handled by the
1607    default linker script using wildcards, and are sorted by
1608    sort_sections.  */
1609
1610 static lang_output_section_statement_type *
1611 gld_${EMULATION_NAME}_place_orphan (asection *s,
1612                                     const char *secname,
1613                                     int constraint)
1614 {
1615   const char *orig_secname = secname;
1616   char *dollar = NULL;
1617   lang_output_section_statement_type *os;
1618   lang_statement_list_type add_child;
1619   lang_output_section_statement_type *match_by_name = NULL;
1620   lang_statement_union_type **pl;
1621
1622   /* Look through the script to see where to place this section.  */
1623   if (!link_info.relocatable
1624       && (dollar = strchr (secname, '\$')) != NULL)
1625     {
1626       size_t len = dollar - secname;
1627       char *newname = xmalloc (len + 1);
1628       memcpy (newname, secname, len);
1629       newname[len] = '\0';
1630       secname = newname;
1631     }
1632
1633   lang_list_init (&add_child);
1634
1635   os = NULL;
1636   if (constraint == 0)
1637     for (os = lang_output_section_find (secname);
1638          os != NULL;
1639          os = next_matching_output_section_statement (os, 0))
1640       {
1641         /* If we don't match an existing output section, tell
1642            lang_insert_orphan to create a new output section.  */
1643         constraint = SPECIAL;
1644
1645         if (os->bfd_section != NULL
1646             && (os->bfd_section->flags == 0
1647                 || ((s->flags ^ os->bfd_section->flags)
1648                     & (SEC_LOAD | SEC_ALLOC)) == 0))
1649           {
1650             /* We already have an output section statement with this
1651                name, and its bfd section has compatible flags.
1652                If the section already exists but does not have any flags set,
1653                then it has been created by the linker, probably as a result of
1654                a --section-start command line switch.  */
1655             lang_add_section (&add_child, s, os);
1656             break;
1657           }
1658
1659         /* Save unused output sections in case we can match them
1660            against orphans later.  */
1661         if (os->bfd_section == NULL)
1662           match_by_name = os;
1663       }
1664
1665   /* If we didn't match an active output section, see if we matched an
1666      unused one and use that.  */
1667   if (os == NULL && match_by_name)
1668     {
1669       lang_add_section (&match_by_name->children, s, match_by_name);
1670       return match_by_name;
1671     }
1672
1673   if (os == NULL)
1674     {
1675       static struct orphan_save hold[] =
1676         {
1677           { ".text",
1678             SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1679             0, 0, 0, 0 },
1680           { ".idata",
1681             SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1682             0, 0, 0, 0 },
1683           { ".rdata",
1684             SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1685             0, 0, 0, 0 },
1686           { ".data",
1687             SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1688             0, 0, 0, 0 },
1689           { ".bss",
1690             SEC_ALLOC,
1691             0, 0, 0, 0 }
1692         };
1693       enum orphan_save_index
1694         {
1695           orphan_text = 0,
1696           orphan_idata,
1697           orphan_rodata,
1698           orphan_data,
1699           orphan_bss
1700         };
1701       static int orphan_init_done = 0;
1702       struct orphan_save *place;
1703       lang_output_section_statement_type *after;
1704       etree_type *address;
1705
1706       if (!orphan_init_done)
1707         {
1708           struct orphan_save *ho;
1709           for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1710             if (ho->name != NULL)
1711               {
1712                 ho->os = lang_output_section_find (ho->name);
1713                 if (ho->os != NULL && ho->os->flags == 0)
1714                   ho->os->flags = ho->flags;
1715               }
1716           orphan_init_done = 1;
1717         }
1718
1719       /* Try to put the new output section in a reasonable place based
1720          on the section name and section flags.  */
1721
1722       place = NULL;
1723       if ((s->flags & SEC_ALLOC) == 0)
1724         ;
1725       else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1726         place = &hold[orphan_bss];
1727       else if ((s->flags & SEC_READONLY) == 0)
1728         place = &hold[orphan_data];
1729       else if ((s->flags & SEC_CODE) == 0)
1730         {
1731           place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
1732                                                      : &hold[orphan_rodata]);
1733         }
1734       else
1735         place = &hold[orphan_text];
1736
1737       after = NULL;
1738       if (place != NULL)
1739         {
1740           if (place->os == NULL)
1741             place->os = lang_output_section_find (place->name);
1742           after = place->os;
1743           if (after == NULL)
1744             after = lang_output_section_find_by_flags (s, &place->os, NULL);
1745           if (after == NULL)
1746             /* *ABS* is always the first output section statement.  */
1747             after = (&lang_output_section_statement.head
1748                      ->output_section_statement);
1749         }
1750
1751       /* All sections in an executable must be aligned to a page boundary.  */
1752       address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1753       os = lang_insert_orphan (s, secname, constraint, after, place, address,
1754                                &add_child);
1755     }
1756
1757   /* If the section name has a '\$', sort it with the other '\$'
1758      sections.  */
1759   for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1760     {
1761       lang_input_section_type *ls;
1762       const char *lname;
1763
1764       if ((*pl)->header.type != lang_input_section_enum)
1765         continue;
1766
1767       ls = &(*pl)->input_section;
1768
1769       lname = bfd_get_section_name (ls->section->owner, ls->section);
1770       if (strchr (lname, '\$') != NULL
1771           && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1772         break;
1773     }
1774
1775   if (add_child.head != NULL)
1776     {
1777       *add_child.tail = *pl;
1778       *pl = add_child.head;
1779     }
1780
1781   return os;
1782 }
1783
1784 static bfd_boolean
1785 gld_${EMULATION_NAME}_open_dynamic_archive
1786   (const char *arch ATTRIBUTE_UNUSED,
1787    search_dirs_type *search,
1788    lang_input_statement_type *entry)
1789 {
1790   static const struct
1791     {
1792       const char * format;
1793       bfd_boolean use_prefix;
1794     }
1795   libname_fmt [] =
1796     {
1797       /* Preferred explicit import library for dll's.  */
1798       { "lib%s.dll.a", FALSE },
1799       /* Alternate explicit import library for dll's.  */
1800       { "%s.dll.a", FALSE },
1801       /* "libfoo.a" could be either an import lib or a static lib.
1802           For backwards compatibility, libfoo.a needs to precede
1803           libfoo.dll and foo.dll in the search.  */
1804       { "lib%s.a", FALSE },
1805       /* The 'native' spelling of an import lib name is "foo.lib".  */
1806       { "%s.lib", FALSE },
1807 #ifdef DLL_SUPPORT
1808       /* Try "<prefix>foo.dll" (preferred dll name, if specified).  */
1809       { "%s%s.dll", TRUE },
1810 #endif
1811       /* Try "libfoo.dll" (default preferred dll name).  */
1812       { "lib%s.dll", FALSE },
1813       /* Finally try 'native' dll name "foo.dll".  */
1814       {  "%s.dll", FALSE },
1815       /* Note: If adding more formats to this table, make sure to check to
1816          see if their length is longer than libname_fmt[0].format, and if
1817          so, update the call to xmalloc() below.  */
1818       { NULL, FALSE }
1819     };
1820   static unsigned int format_max_len = 0;
1821   const char * filename;
1822   char * full_string;
1823   char * base_string;
1824   unsigned int i;
1825
1826
1827   if (! entry->maybe_archive)
1828     return FALSE;
1829
1830   filename = entry->filename;
1831
1832   if (format_max_len == 0)
1833     /* We need to allow space in the memory that we are going to allocate
1834        for the characters in the format string.  Since the format array is
1835        static we only need to calculate this information once.  In theory
1836        this value could also be computed statically, but this introduces
1837        the possibility for a discrepancy and hence a possible memory
1838        corruption.  The lengths we compute here will be too long because
1839        they will include any formating characters (%s) in the strings, but
1840        this will not matter.  */
1841     for (i = 0; libname_fmt[i].format; i++)
1842       if (format_max_len < strlen (libname_fmt[i].format))
1843         format_max_len = strlen (libname_fmt[i].format);
1844
1845   full_string = xmalloc (strlen (search->name)
1846                          + strlen (filename)
1847                          + format_max_len
1848 #ifdef DLL_SUPPORT
1849                          + (pep_dll_search_prefix
1850                             ? strlen (pep_dll_search_prefix) : 0)
1851 #endif
1852                          /* Allow for the terminating NUL and for the path
1853                             separator character that is inserted between
1854                             search->name and the start of the format string.  */
1855                          + 2);
1856
1857   sprintf (full_string, "%s/", search->name);
1858   base_string = full_string + strlen (full_string);
1859
1860   for (i = 0; libname_fmt[i].format; i++)
1861     {
1862 #ifdef DLL_SUPPORT
1863       if (libname_fmt[i].use_prefix)
1864         {
1865           if (!pep_dll_search_prefix)
1866             continue;
1867           sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
1868         }
1869       else
1870 #endif
1871         sprintf (base_string, libname_fmt[i].format, filename);
1872
1873       if (ldfile_try_open_bfd (full_string, entry))
1874         break;
1875     }
1876
1877   if (!libname_fmt[i].format)
1878     {
1879       free (full_string);
1880       return FALSE;
1881     }
1882
1883   entry->filename = full_string;
1884
1885   return TRUE;
1886 }
1887
1888 static int
1889 gld_${EMULATION_NAME}_find_potential_libraries
1890   (char *name, lang_input_statement_type *entry)
1891 {
1892   return ldfile_open_file_search (name, entry, "", ".lib");
1893 }
1894 \f
1895 static char *
1896 gld_${EMULATION_NAME}_get_script (int *isfile)
1897 EOF
1898 # Scripts compiled in.
1899 # sed commands to quote an ld script as a C string.
1900 sc="-f stringify.sed"
1901
1902 fragment <<EOF
1903 {
1904   *isfile = 0;
1905
1906   if (link_info.relocatable && config.build_constructors)
1907     return
1908 EOF
1909 sed $sc ldscripts/${EMULATION_NAME}.xu                  >> e${EMULATION_NAME}.c
1910 echo '  ; else if (link_info.relocatable) return'       >> e${EMULATION_NAME}.c
1911 sed $sc ldscripts/${EMULATION_NAME}.xr                  >> e${EMULATION_NAME}.c
1912 echo '  ; else if (!config.text_read_only) return'      >> e${EMULATION_NAME}.c
1913 sed $sc ldscripts/${EMULATION_NAME}.xbn                 >> e${EMULATION_NAME}.c
1914 echo '  ; else if (!config.magic_demand_paged) return'  >> e${EMULATION_NAME}.c
1915 sed $sc ldscripts/${EMULATION_NAME}.xn                  >> e${EMULATION_NAME}.c
1916 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
1917 echo '  ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return'     >> e${EMULATION_NAME}.c
1918 sed $sc ldscripts/${EMULATION_NAME}.xa                  >> e${EMULATION_NAME}.c
1919 fi
1920 echo '  ; else return'                                  >> e${EMULATION_NAME}.c
1921 sed $sc ldscripts/${EMULATION_NAME}.x                   >> e${EMULATION_NAME}.c
1922 echo '; }'                                              >> e${EMULATION_NAME}.c
1923
1924 fragment <<EOF
1925
1926
1927 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1928 {
1929   gld_${EMULATION_NAME}_before_parse,
1930   syslib_default,
1931   hll_default,
1932   gld_${EMULATION_NAME}_after_parse,
1933   gld_${EMULATION_NAME}_after_open,
1934   after_allocation_default,
1935   set_output_arch_default,
1936   ldemul_default_target,
1937   gld_${EMULATION_NAME}_before_allocation,
1938   gld_${EMULATION_NAME}_get_script,
1939   "${EMULATION_NAME}",
1940   "${OUTPUT_FORMAT}",
1941   gld_${EMULATION_NAME}_finish,
1942   NULL, /* Create output section statements.  */
1943   gld_${EMULATION_NAME}_open_dynamic_archive,
1944   gld_${EMULATION_NAME}_place_orphan,
1945   gld_${EMULATION_NAME}_set_symbols,
1946   NULL, /* parse_args */
1947   gld${EMULATION_NAME}_add_options,
1948   gld${EMULATION_NAME}_handle_option,
1949   gld_${EMULATION_NAME}_unrecognized_file,
1950   gld_${EMULATION_NAME}_list_options,
1951   gld_${EMULATION_NAME}_recognized_file,
1952   gld_${EMULATION_NAME}_find_potential_libraries,
1953   NULL  /* new_vers_pattern.  */
1954 };
1955 EOF