aarch64-pe support for LD, GAS and BFD

[thirdparty/binutils-gdb.git] / ld / emultempl / pep.em

# This shell script emits a C file. -*- C -*-
# It does some substitutions.
if [ -z "$MACHINE" ]; then
  OUTPUT_ARCH=${ARCH}
else
  OUTPUT_ARCH=${ARCH}:${MACHINE}
fi

case ${target} in
  *-*-cygwin*)
    move_default_addr_high=1
    cygwin_behavior=1
    ;;
  *)
    move_default_addr_high=0;
    cygwin_behavior=0;
    ;;
esac

rm -f e${EMULATION_NAME}.c
(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
fragment <<EOF
/* Copyright (C) 2006-2022 Free Software Foundation, Inc.
   Written by Kai Tietz, OneVision Software GmbH&CoKg.

   This file is part of the GNU Binutils.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */


/* For WINDOWS_XP64 and higher */
/* Based on pe.em, but modified for 64 bit support.  */

#define TARGET_IS_${EMULATION_NAME}

#define COFF_IMAGE_WITH_PE
#define COFF_WITH_PE
#ifdef TARGET_IS_aarch64pe
#define COFF_WITH_peAArch64
#elif defined (TARGET_IS_i386pep)
#define COFF_WITH_pex64
#endif

#include "sysdep.h"
#include "bfd.h"
#include "bfdlink.h"
#include "ctf-api.h"
#include "getopt.h"
#include "libiberty.h"
#include "filenames.h"
#include "ld.h"
#include "ldmain.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldfile.h"
#include "ldemul.h"
#include <ldgram.h>
#include "ldlex.h"
#include "ldmisc.h"
#include "ldctor.h"
#include "ldbuildid.h"
#include "coff/internal.h"

/* FIXME: See bfd/peXXigen.c for why we include an architecture specific
   header in generic PE code.  */
#ifdef TARGET_IS_i386pep
# include "coff/x86_64.h"
#elif defined TARGET_IS_aarch64pe
# include "coff/aarch64.h"
#endif
#include "coff/pe.h"

/* FIXME: These are BFD internal header files, and we should not be
   using it here.  */
#include "../bfd/libcoff.h"
#include "../bfd/libpei.h"

#undef  AOUTSZ
#define AOUTSZ		PEPAOUTSZ
#define PEAOUTHDR	PEPAOUTHDR

#include "deffile.h"
#include "pep-dll.h"
#include "safe-ctype.h"

/* Permit the emulation parameters to override the default section
   alignment by setting OVERRIDE_SECTION_ALIGNMENT.  FIXME: This makes
   it seem that include/coff/internal.h should not define
   PE_DEF_SECTION_ALIGNMENT.  */
#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
#undef  PE_DEF_SECTION_ALIGNMENT
#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
#endif

#ifdef TARGET_IS_i386pep
#define DLL_SUPPORT
#endif

#define DEFAULT_DLL_CHARACTERISTICS	(${cygwin_behavior} ? 0 : \
					   IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE \
					 | IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA \
  					 | IMAGE_DLL_CHARACTERISTICS_NX_COMPAT)

#if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
#define	PE_DEF_SUBSYSTEM		3
#undef NT_EXE_IMAGE_BASE
#define NT_EXE_IMAGE_BASE \
  ((bfd_vma) (${move_default_addr_high} ? 0x100400000LL \
					: 0x140000000LL))
#undef NT_DLL_IMAGE_BASE
#define NT_DLL_IMAGE_BASE \
  ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
					: 0x180000000LL))
#undef NT_DLL_AUTO_IMAGE_BASE
#define NT_DLL_AUTO_IMAGE_BASE \
  ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
					: 0x1C0000000LL))
#undef NT_DLL_AUTO_IMAGE_MASK
#define NT_DLL_AUTO_IMAGE_MASK \
  ((bfd_vma) (${move_default_addr_high} ? 0x1ffff0000LL \
					: 0x1ffff0000LL))
#else
#undef  NT_EXE_IMAGE_BASE
#define NT_EXE_IMAGE_BASE \
  ((bfd_vma) (${move_default_addr_high} ? 0x100010000LL \
					: 0x10000LL))
#undef NT_DLL_IMAGE_BASE
#define NT_DLL_IMAGE_BASE \
  ((bfd_vma) (${move_default_addr_high} ? 0x110000000LL \
					: 0x10000000LL))
#undef NT_DLL_AUTO_IMAGE_BASE
#define NT_DLL_AUTO_IMAGE_BASE \
  ((bfd_vma) (${move_default_addr_high} ? 0x120000000LL \
					: 0x61300000LL))
#undef NT_DLL_AUTO_IMAGE_MASK
#define NT_DLL_AUTO_IMAGE_MASK \
  ((bfd_vma) (${move_default_addr_high} ? 0x0ffff0000LL \
					: 0x0ffc0000LL))
#undef  PE_DEF_SECTION_ALIGNMENT
#define	PE_DEF_SUBSYSTEM		2
#undef  PE_DEF_FILE_ALIGNMENT
#define PE_DEF_FILE_ALIGNMENT		0x00000200
#define PE_DEF_SECTION_ALIGNMENT	0x00000400
#endif

static struct internal_extra_pe_aouthdr pep;
static int dll;
static int pep_subsystem = ${SUBSYSTEM};
static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
static int support_old_code = 0;
static lang_assignment_statement_type *image_base_statement = 0;
static unsigned short pe_dll_characteristics = DEFAULT_DLL_CHARACTERISTICS;
static bool insert_timestamp = true;
static const char *emit_build_id;

#ifdef DLL_SUPPORT
static int    pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default).  */
static char * pep_out_def_filename = NULL;
static int    pep_enable_auto_image_base = 0;
static char * pep_dll_search_prefix = NULL;
#endif

extern const char *output_filename;

static int
is_underscoring (void)
{
  int u = 0;
  if (pep_leading_underscore != -1)
    return pep_leading_underscore;
  if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
    bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);

  if (u == -1)
    abort ();
  pep_leading_underscore = (u != 0 ? 1 : 0);
  return pep_leading_underscore;
}

/* A case insensitive comparison, regardless of the host platform, used for
   comparing file extensions.  */
static int
fileext_cmp (const char *s1, const char *s2)
{
  for (;;)
    {
      int c1 = TOLOWER (*s1++);
      int c2 = *s2++; /* Assumed to be lower case from the caller.  */

      if (c1 != c2)
        return (c1 - c2);

      if (c1 == '\0')
        return 0;
    }
}

static void
gld${EMULATION_NAME}_before_parse (void)
{
  is_underscoring ();
  ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
  output_filename = "${EXECUTABLE_NAME:-a.exe}";
#ifdef DLL_SUPPORT
  input_flags.dynamic = true;
  config.has_shared = 1;
  link_info.pei386_auto_import = 1;
  link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2.  */
#endif
}
\f
/* PE format extra command line options.  */

/* Used for setting flags in the PE header.  */
enum options
{
  OPTION_BASE_FILE = 300 + 1,
  OPTION_DLL,
  OPTION_FILE_ALIGNMENT,
  OPTION_IMAGE_BASE,
  OPTION_MAJOR_IMAGE_VERSION,
  OPTION_MAJOR_OS_VERSION,
  OPTION_MAJOR_SUBSYSTEM_VERSION,
  OPTION_MINOR_IMAGE_VERSION,
  OPTION_MINOR_OS_VERSION,
  OPTION_MINOR_SUBSYSTEM_VERSION,
  OPTION_SECTION_ALIGNMENT,
  OPTION_STACK,
  OPTION_SUBSYSTEM,
  OPTION_HEAP,
  OPTION_SUPPORT_OLD_CODE,
  OPTION_OUT_DEF,
  OPTION_EXPORT_ALL,
  OPTION_EXCLUDE_SYMBOLS,
  OPTION_EXCLUDE_ALL_SYMBOLS,
  OPTION_KILL_ATS,
  OPTION_STDCALL_ALIASES,
  OPTION_ENABLE_STDCALL_FIXUP,
  OPTION_DISABLE_STDCALL_FIXUP,
  OPTION_WARN_DUPLICATE_EXPORTS,
  OPTION_IMP_COMPAT,
  OPTION_ENABLE_AUTO_IMAGE_BASE,
  OPTION_DISABLE_AUTO_IMAGE_BASE,
  OPTION_DLL_SEARCH_PREFIX,
  OPTION_NO_DEFAULT_EXCLUDES,
  OPTION_DLL_ENABLE_AUTO_IMPORT,
  OPTION_DLL_DISABLE_AUTO_IMPORT,
  OPTION_ENABLE_EXTRA_PE_DEBUG,
  OPTION_EXCLUDE_LIBS,
  OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
  OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
  OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
  OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
  OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
  OPTION_NO_LEADING_UNDERSCORE,
  OPTION_LEADING_UNDERSCORE,
  OPTION_ENABLE_LONG_SECTION_NAMES,
  OPTION_DISABLE_LONG_SECTION_NAMES,
  OPTION_HIGH_ENTROPY_VA,
  OPTION_DYNAMIC_BASE,
  OPTION_FORCE_INTEGRITY,
  OPTION_NX_COMPAT,
  OPTION_NO_ISOLATION,
  OPTION_NO_SEH,
  OPTION_NO_BIND,
  OPTION_WDM_DRIVER,
  OPTION_INSERT_TIMESTAMP,
  OPTION_NO_INSERT_TIMESTAMP,
  OPTION_TERMINAL_SERVER_AWARE,
  OPTION_BUILD_ID,
  OPTION_ENABLE_RELOC_SECTION,
  OPTION_DISABLE_RELOC_SECTION,
  OPTION_DISABLE_HIGH_ENTROPY_VA,
  OPTION_DISABLE_DYNAMIC_BASE,
  OPTION_DISABLE_FORCE_INTEGRITY,
  OPTION_DISABLE_NX_COMPAT,
  OPTION_DISABLE_NO_ISOLATION,
  OPTION_DISABLE_NO_SEH,
  OPTION_DISABLE_NO_BIND,
  OPTION_DISABLE_WDM_DRIVER,
  OPTION_DISABLE_TERMINAL_SERVER_AWARE
};

static void
gld${EMULATION_NAME}_add_options
  (int ns ATTRIBUTE_UNUSED,
   char **shortopts ATTRIBUTE_UNUSED,
   int nl,
   struct option **longopts,
   int nrl ATTRIBUTE_UNUSED,
   struct option **really_longopts ATTRIBUTE_UNUSED)
{
  static const struct option xtra_long[] =
  {
    /* PE options */
    {"base-file", required_argument, NULL, OPTION_BASE_FILE},
    {"dll", no_argument, NULL, OPTION_DLL},
    {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
    {"heap", required_argument, NULL, OPTION_HEAP},
    {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
    {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
    {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
    {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
    {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
    {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
    {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
    {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
    {"stack", required_argument, NULL, OPTION_STACK},
    {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
    {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
    {"use-nul-prefixed-import-tables", no_argument, NULL,
     OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
    {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
    {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
#ifdef DLL_SUPPORT
    /* getopt allows abbreviations, so we do this to stop it
       from treating -o as an abbreviation for this option.  */
    {"output-def", required_argument, NULL, OPTION_OUT_DEF},
    {"output-def", required_argument, NULL, OPTION_OUT_DEF},
    {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
    {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
    {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
    {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
    {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
    {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
    {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
    {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
    {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
    {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
    /* getopt() allows abbreviations, so we do this to stop it from
       treating -c as an abbreviation for these --compat-implib.  */
    {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
    {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
    {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
    {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
    {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
    {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
    {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
    {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
    {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
    {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
    {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
    {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
#endif
    {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
    {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
    {"high-entropy-va", no_argument, NULL, OPTION_HIGH_ENTROPY_VA},
    {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
    {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
    {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
    {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
    {"no-seh", no_argument, NULL, OPTION_NO_SEH},
    {"no-bind", no_argument, NULL, OPTION_NO_BIND},
    {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
    {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
    {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
    {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
    {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
    {"enable-reloc-section", no_argument, NULL, OPTION_ENABLE_RELOC_SECTION},
    {"disable-reloc-section", no_argument, NULL, OPTION_DISABLE_RELOC_SECTION},
    {"disable-high-entropy-va", no_argument, NULL, OPTION_DISABLE_HIGH_ENTROPY_VA},
    {"disable-dynamicbase",no_argument, NULL, OPTION_DISABLE_DYNAMIC_BASE},
    {"disable-forceinteg", no_argument, NULL, OPTION_DISABLE_FORCE_INTEGRITY},
    {"disable-nxcompat", no_argument, NULL, OPTION_DISABLE_NX_COMPAT},
    {"disable-no-isolation", no_argument, NULL, OPTION_DISABLE_NO_ISOLATION},
    {"disable-no-seh", no_argument, NULL, OPTION_DISABLE_NO_SEH},
    {"disable-no-bind", no_argument, NULL, OPTION_DISABLE_NO_BIND},
    {"disable-wdmdriver", no_argument, NULL, OPTION_DISABLE_WDM_DRIVER},
    {"disable-tsaware", no_argument, NULL, OPTION_DISABLE_TERMINAL_SERVER_AWARE},
    {NULL, no_argument, NULL, 0}
  };

  *longopts
    = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
  memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
}

/* PE/WIN32; added routines to get the subsystem type, heap and/or stack
   parameters which may be input from the command line.  */

typedef struct
{
  void *ptr;
  int size;
  bfd_vma value;
  char *symbol;
  int inited;
  /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
     C visible symbols can be prefixed by underscore dependent on target's
     settings.  */
  bool is_c_symbol;
} definfo;

#define GET_INIT_SYMBOL_NAME(IDX) \
  (init[(IDX)].symbol \
   + ((!init[(IDX)].is_c_symbol || is_underscoring () == 1) ? 0 : 1))

/* Decorates the C visible symbol by underscore, if target requires.  */
#define U(CSTR) \
  ((is_underscoring () == 0) ? CSTR : "_" CSTR)

#define D(field,symbol,def,usc)  {&pep.field, sizeof (pep.field), def, symbol, 0, usc}

static definfo init[] =
{
  /* imagebase must be first */
#define IMAGEBASEOFF 0
  D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, false),
#define DLLOFF 1
  {&dll, sizeof(dll), 0, "__dll__", 0, false},
#define MSIMAGEBASEOFF	2
  D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, true),
  D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, false),
  D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, false),
  D(MajorOperatingSystemVersion,"__major_os_version__", 4, false),
  D(MinorOperatingSystemVersion,"__minor_os_version__", 0, false),
  D(MajorImageVersion,"__major_image_version__", 0, false),
  D(MinorImageVersion,"__minor_image_version__", 0, false),
  D(MajorSubsystemVersion,"__major_subsystem_version__", 5, false),
  D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, false),
  D(Subsystem,"__subsystem__", ${SUBSYSTEM}, false),
  D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, false),
  D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, false),
  D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, false),
  D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, false),
  D(LoaderFlags,"__loader_flags__", 0x0, false),
  D(DllCharacteristics, "__dll_characteristics__", DEFAULT_DLL_CHARACTERISTICS, false),
  { NULL, 0, 0, NULL, 0, false}
};


static void
gld${EMULATION_NAME}_list_options (FILE *file)
{
  fprintf (file, _("  --base_file <basefile>             Generate a base file for relocatable DLLs\n"));
  fprintf (file, _("  --dll                              Set image base to the default for DLLs\n"));
  fprintf (file, _("  --file-alignment <size>            Set file alignment\n"));
  fprintf (file, _("  --heap <size>                      Set initial size of the heap\n"));
  fprintf (file, _("  --image-base <address>             Set start address of the executable\n"));
  fprintf (file, _("  --major-image-version <number>     Set version number of the executable\n"));
  fprintf (file, _("  --major-os-version <number>        Set minimum required OS version\n"));
  fprintf (file, _("  --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
  fprintf (file, _("  --minor-image-version <number>     Set revision number of the executable\n"));
  fprintf (file, _("  --minor-os-version <number>        Set minimum required OS revision\n"));
  fprintf (file, _("  --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
  fprintf (file, _("  --section-alignment <size>         Set section alignment\n"));
  fprintf (file, _("  --stack <size>                     Set size of the initial stack\n"));
  fprintf (file, _("  --subsystem <name>[:<version>]     Set required OS subsystem [& version]\n"));
  fprintf (file, _("  --support-old-code                 Support interworking with old code\n"));
  fprintf (file, _("  --[no-]leading-underscore          Set explicit symbol underscore prefix mode\n"));
  fprintf (file, _("  --[no-]insert-timestamp            Use a real timestamp rather than zero (default)\n"));
  fprintf (file, _("                                     This makes binaries non-deterministic\n"));
#ifdef DLL_SUPPORT
  fprintf (file, _("  --add-stdcall-alias                Export symbols with and without @nn\n"));
  fprintf (file, _("  --disable-stdcall-fixup            Don't link _sym to _sym@nn\n"));
  fprintf (file, _("  --enable-stdcall-fixup             Link _sym to _sym@nn without warnings\n"));
  fprintf (file, _("  --exclude-symbols sym,sym,...      Exclude symbols from automatic export\n"));
  fprintf (file, _("  --exclude-all-symbols              Exclude all symbols from automatic export\n"));
  fprintf (file, _("  --exclude-libs lib,lib,...         Exclude libraries from automatic export\n"));
  fprintf (file, _("  --exclude-modules-for-implib mod,mod,...\n"));
  fprintf (file, _("                                     Exclude objects, archive members from auto\n"));
  fprintf (file, _("                                     export, place into import library instead\n"));
  fprintf (file, _("  --export-all-symbols               Automatically export all globals to DLL\n"));
  fprintf (file, _("  --kill-at                          Remove @nn from exported symbols\n"));
  fprintf (file, _("  --output-def <file>                Generate a .DEF file for the built DLL\n"));
  fprintf (file, _("  --warn-duplicate-exports           Warn about duplicate exports\n"));
  fprintf (file, _("  --compat-implib                    Create backward compatible import libs;\n\
                                       create __imp_<SYMBOL> as well\n"));
  fprintf (file, _("  --enable-auto-image-base           Automatically choose image base for DLLs\n\
                                       unless user specifies one\n"));
  fprintf (file, _("  --disable-auto-image-base          Do not auto-choose image base (default)\n"));
  fprintf (file, _("  --dll-search-prefix=<string>       When linking dynamically to a dll without\n\
                                       an importlib, use <string><basename>.dll\n\
                                       in preference to lib<basename>.dll \n"));
  fprintf (file, _("  --enable-auto-import               Do sophisticated linking of _sym to\n\
                                       __imp_sym for DATA references\n"));
  fprintf (file, _("  --disable-auto-import              Do not auto-import DATA items from DLLs\n"));
  fprintf (file, _("  --enable-runtime-pseudo-reloc      Work around auto-import limitations by\n\
                                       adding pseudo-relocations resolved at\n\
                                       runtime\n"));
  fprintf (file, _("  --disable-runtime-pseudo-reloc     Do not add runtime pseudo-relocations for\n\
                                       auto-imported DATA\n"));
  fprintf (file, _("  --enable-extra-pep-debug            Enable verbose debug output when building\n\
                                       or linking to DLLs (esp. auto-import)\n"));
  fprintf (file, _("  --enable-long-section-names        Use long COFF section names even in\n\
                                       executable image files\n"));
  fprintf (file, _("  --disable-long-section-names       Never use long COFF section names, even\n\
                                       in object files\n"));
  fprintf (file, _("  --[disable-]high-entropy-va        Image is compatible with 64-bit address space\n\
                                       layout randomization (ASLR)\n"));
  fprintf (file, _("  --[disable-]dynamicbase            Image base address may be relocated using\n\
                                       address space layout randomization (ASLR)\n"));
  fprintf (file, _("  --enable-reloc-section             Create the base relocation table\n"));
  fprintf (file, _("  --disable-reloc-section            Do not create the base relocation table\n"));
  fprintf (file, _("  --[disable-]forceinteg             Code integrity checks are enforced\n"));
  fprintf (file, _("  --[disable-]nxcompat               Image is compatible with data execution\n\
                                       prevention\n"));
  fprintf (file, _("  --[disable-]no-isolation           Image understands isolation but do not\n\
                                       isolate the image\n"));
  fprintf (file, _("  --[disable-]no-seh                 Image does not use SEH; no SE handler may\n\
                                       be called in this image\n"));
  fprintf (file, _("  --[disable-]no-bind                Do not bind this image\n"));
  fprintf (file, _("  --[disable-]wdmdriver              Driver uses the WDM model\n"));
  fprintf (file, _("  --[disable-]tsaware                Image is Terminal Server aware\n"));
  fprintf (file, _("  --build-id[=STYLE]                 Generate build ID\n"));
#endif
}


static void
set_pep_name (char *name, bfd_vma val)
{
  int i;
  is_underscoring ();
  /* Find the name and set it.  */
  for (i = 0; init[i].ptr; i++)
    {
      if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
	{
	  init[i].value = val;
	  init[i].inited = 1;
	  if (strcmp (name,"__image_base__") == 0)
	    set_pep_name (U ("__ImageBase"), val);
	  return;
	}
    }
  abort ();
}

static void
set_entry_point (void)
{
  const char *entry;
  const char *initial_symbol_char;
  int i;

  static const struct
  {
    const int value;
    const char *entry;
  }
  v[] =
    {
      { 1, "NtProcessStartup"  },
      { 2, "WinMainCRTStartup" },
      { 3, "mainCRTStartup"    },
      { 7, "__PosixProcessStartup" },
      { 9, "WinMainCRTStartup" },
      {14, "mainCRTStartup"    },
      { 0, NULL          }
    };

  /* Entry point name for arbitrary subsystem numbers.  */
  static const char default_entry[] = "mainCRTStartup";

  if (bfd_link_dll (&link_info) || dll)
    {
      entry = "DllMainCRTStartup";
    }
  else
    {
      for (i = 0; v[i].entry; i++)
	if (v[i].value == pep_subsystem)
	  break;

      /* If no match, use the default.  */
      if (v[i].entry != NULL)
	entry = v[i].entry;
      else
	entry = default_entry;
    }

  /* Now we check target's default for getting proper symbol_char.  */
  initial_symbol_char = (is_underscoring () != 0 ? "_" : "");

  if (*initial_symbol_char != '\0')
    {
      char *alc_entry;

      /* lang_default_entry expects its argument to be permanently
	 allocated, so we don't free this string.  */
      alc_entry = xmalloc (strlen (initial_symbol_char)
			   + strlen (entry)
			   + 1);
      strcpy (alc_entry, initial_symbol_char);
      strcat (alc_entry, entry);
      entry = alc_entry;
    }

  lang_default_entry (entry);
}

static void
set_pep_subsystem (void)
{
  const char *sver;
  char *end;
  int len;
  int i;
  unsigned long temp_subsystem;
  static const struct
    {
      const char *name;
      const int value;
    }
  v[] =
    {
      { "native",  1 },
      { "windows", 2 },
      { "console", 3 },
      { "posix",   7 },
      { "wince",   9 },
      { "xbox",   14 },
      { NULL, 0 }
    };

  /* Check for the presence of a version number.  */
  sver = strchr (optarg, ':');
  if (sver == NULL)
    len = strlen (optarg);
  else
    {
      len = sver - optarg;
      set_pep_name ("__major_subsystem_version__",
		    strtoul (sver + 1, &end, 0));
      if (*end == '.')
	set_pep_name ("__minor_subsystem_version__",
		      strtoul (end + 1, &end, 0));
      if (*end != '\0')
	einfo (_("%P: warning: bad version number in -subsystem option\n"));
    }

  /* Check for numeric subsystem.  */
  temp_subsystem = strtoul (optarg, & end, 0);
  if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
    {
      /* Search list for a numeric match to use its entry point.  */
      for (i = 0; v[i].name; i++)
	if (v[i].value == (int) temp_subsystem)
	  break;

      /* Use this subsystem.  */
      pep_subsystem = (int) temp_subsystem;
    }
  else
    {
      /* Search for subsystem by name.  */
      for (i = 0; v[i].name; i++)
	if (strncmp (optarg, v[i].name, len) == 0
	    && v[i].name[len] == '\0')
	  break;

      if (v[i].name == NULL)
	{
	  einfo (_("%F%P: invalid subsystem type %s\n"), optarg);
	  return;
	}

      pep_subsystem = v[i].value;
    }

  set_pep_name ("__subsystem__", pep_subsystem);

  return;
}


static void
set_pep_value (char *name)
{
  char *end;

  set_pep_name (name,  (bfd_vma) strtoull (optarg, &end, 0));

  if (end == optarg)
    einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg);

  optarg = end;
}


static void
set_pep_stack_heap (char *resname, char *comname)
{
  set_pep_value (resname);

  if (*optarg == ',')
    {
      optarg++;
      set_pep_value (comname);
    }
  else if (*optarg)
    einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg);
}

#define DEFAULT_BUILD_ID_STYLE	"md5"

static bool
gld${EMULATION_NAME}_handle_option (int optc)
{
  is_underscoring ();
  switch (optc)
    {
    default:
      return false;

    case OPTION_BASE_FILE:
      link_info.base_file = fopen (optarg, FOPEN_WB);
      if (link_info.base_file == NULL)
	einfo (_("%F%P: cannot open base file %s\n"), optarg);
      break;

      /* PE options.  */
    case OPTION_HEAP:
      set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
      break;
    case OPTION_STACK:
      set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
      break;
    case OPTION_SUBSYSTEM:
      set_pep_subsystem ();
      break;
    case OPTION_MAJOR_OS_VERSION:
      set_pep_value ("__major_os_version__");
      break;
    case OPTION_MINOR_OS_VERSION:
      set_pep_value ("__minor_os_version__");
      break;
    case OPTION_MAJOR_SUBSYSTEM_VERSION:
      set_pep_value ("__major_subsystem_version__");
      break;
    case OPTION_MINOR_SUBSYSTEM_VERSION:
      set_pep_value ("__minor_subsystem_version__");
      break;
    case OPTION_MAJOR_IMAGE_VERSION:
      set_pep_value ("__major_image_version__");
      break;
    case OPTION_MINOR_IMAGE_VERSION:
      set_pep_value ("__minor_image_version__");
      break;
    case OPTION_FILE_ALIGNMENT:
      set_pep_value ("__file_alignment__");
      break;
    case OPTION_SECTION_ALIGNMENT:
      set_pep_value ("__section_alignment__");
      break;
    case OPTION_DLL:
      set_pep_name ("__dll__", 1);
      break;
    case OPTION_IMAGE_BASE:
      set_pep_value ("__image_base__");
      break;
    case OPTION_SUPPORT_OLD_CODE:
      support_old_code = 1;
      break;
    case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
      pep_use_nul_prefixed_import_tables = true;
      break;
    case OPTION_NO_LEADING_UNDERSCORE:
      pep_leading_underscore = 0;
      break;
    case OPTION_LEADING_UNDERSCORE:
      pep_leading_underscore = 1;
      break;
    case OPTION_INSERT_TIMESTAMP:
      insert_timestamp = true;
      break;
    case OPTION_NO_INSERT_TIMESTAMP:
      insert_timestamp = false;
      break;
#ifdef DLL_SUPPORT
    case OPTION_OUT_DEF:
      pep_out_def_filename = xstrdup (optarg);
      break;
    case OPTION_EXPORT_ALL:
      pep_dll_export_everything = 1;
      break;
    case OPTION_EXCLUDE_SYMBOLS:
      pep_dll_add_excludes (optarg, EXCLUDESYMS);
      break;
    case OPTION_EXCLUDE_ALL_SYMBOLS:
      pep_dll_exclude_all_symbols = 1;
      break;
    case OPTION_EXCLUDE_LIBS:
      pep_dll_add_excludes (optarg, EXCLUDELIBS);
      break;
    case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
      pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
      break;
    case OPTION_KILL_ATS:
      pep_dll_kill_ats = 1;
      break;
    case OPTION_STDCALL_ALIASES:
      pep_dll_stdcall_aliases = 1;
      break;
    case OPTION_ENABLE_STDCALL_FIXUP:
      pep_enable_stdcall_fixup = 1;
      break;
    case OPTION_DISABLE_STDCALL_FIXUP:
      pep_enable_stdcall_fixup = 0;
      break;
    case OPTION_WARN_DUPLICATE_EXPORTS:
      pep_dll_warn_dup_exports = 1;
      break;
    case OPTION_IMP_COMPAT:
      pep_dll_compat_implib = 1;
      break;
    case OPTION_ENABLE_AUTO_IMAGE_BASE:
      pep_enable_auto_image_base = 1;
      break;
    case OPTION_DISABLE_AUTO_IMAGE_BASE:
      pep_enable_auto_image_base = 0;
      break;
    case OPTION_DLL_SEARCH_PREFIX:
      pep_dll_search_prefix = xstrdup (optarg);
      break;
    case OPTION_NO_DEFAULT_EXCLUDES:
      pep_dll_do_default_excludes = 0;
      break;
    case OPTION_DLL_ENABLE_AUTO_IMPORT:
      link_info.pei386_auto_import = 1;
      break;
    case OPTION_DLL_DISABLE_AUTO_IMPORT:
      link_info.pei386_auto_import = 0;
      break;
    case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
      link_info.pei386_runtime_pseudo_reloc = 2;
      break;
    case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
      link_info.pei386_runtime_pseudo_reloc = 0;
      break;
    case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
      link_info.pei386_runtime_pseudo_reloc = 2;
      break;
    case OPTION_ENABLE_EXTRA_PE_DEBUG:
      pep_dll_extra_pe_debug = 1;
      break;
#endif
    case OPTION_ENABLE_LONG_SECTION_NAMES:
      pep_use_coff_long_section_names = 1;
      break;
    case OPTION_DISABLE_LONG_SECTION_NAMES:
      pep_use_coff_long_section_names = 0;
      break;
    /*  Get DLLCharacteristics bits  */
    case OPTION_HIGH_ENTROPY_VA:
      pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA;
      /* fall through */
    case OPTION_DYNAMIC_BASE:
      pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
      /* fall through */
    case OPTION_ENABLE_RELOC_SECTION:
      pep_dll_enable_reloc_section = 1;
      break;
    case OPTION_DISABLE_RELOC_SECTION:
      pep_dll_enable_reloc_section = 0;
      /* fall through */
    case OPTION_DISABLE_DYNAMIC_BASE:
      pe_dll_characteristics &= ~ IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
      /* fall through */
    case OPTION_DISABLE_HIGH_ENTROPY_VA:
      pe_dll_characteristics &= ~ IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA;
      break;
    case OPTION_FORCE_INTEGRITY:
      pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
      break;
    case OPTION_DISABLE_FORCE_INTEGRITY:
      pe_dll_characteristics &= ~ IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
      break;
    case OPTION_NX_COMPAT:
      pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
      break;
    case OPTION_DISABLE_NX_COMPAT:
      pe_dll_characteristics &= ~ IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
      break;
    case OPTION_NO_ISOLATION:
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
      break;
    case OPTION_DISABLE_NO_ISOLATION:
      pe_dll_characteristics &= ~ IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
      break;
    case OPTION_NO_SEH:
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
      break;
    case OPTION_DISABLE_NO_SEH:
      pe_dll_characteristics &= ~ IMAGE_DLLCHARACTERISTICS_NO_SEH;
      break;
    case OPTION_NO_BIND:
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
      break;
    case OPTION_DISABLE_NO_BIND:
      pe_dll_characteristics &= ~ IMAGE_DLLCHARACTERISTICS_NO_BIND;
      break;
    case OPTION_WDM_DRIVER:
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
      break;
    case OPTION_DISABLE_WDM_DRIVER:
      pe_dll_characteristics &= ~ IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
      break;
    case OPTION_TERMINAL_SERVER_AWARE:
      pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
      break;
    case OPTION_DISABLE_TERMINAL_SERVER_AWARE:
      pe_dll_characteristics &= ~ IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
      break;
    case OPTION_BUILD_ID:
      free ((char *) emit_build_id);
      emit_build_id = NULL;
      if (optarg == NULL)
	optarg = DEFAULT_BUILD_ID_STYLE;
      if (strcmp (optarg, "none"))
	emit_build_id = xstrdup (optarg);
      break;
    }

  /*  Set DLLCharacteristics bits  */
  set_pep_name ("__dll_characteristics__", pe_dll_characteristics);

  return true;
}
\f

#ifdef DLL_SUPPORT
static unsigned long
strhash (const char *str)
{
  const unsigned char *s;
  unsigned long hash;
  unsigned int c;
  unsigned int len;

  hash = 0;
  len = 0;
  s = (const unsigned char *) str;
  while ((c = *s++) != '\0')
    {
      hash += c + (c << 17);
      hash ^= hash >> 2;
      ++len;
    }
  hash += len + (len << 17);
  hash ^= hash >> 2;

  return hash;
}

/* Use the output file to create a image base for relocatable DLLs.  */

static bfd_vma
compute_dll_image_base (const char *ofile)
{
  bfd_vma hash = (bfd_vma) strhash (ofile);
  return NT_DLL_AUTO_IMAGE_BASE + ((hash << 16) & NT_DLL_AUTO_IMAGE_MASK);
}
#endif

/* Assign values to the special symbols before the linker script is
   read.  */

static void
gld${EMULATION_NAME}_set_symbols (void)
{
  /* Run through and invent symbols for all the
     names and insert the defaults.  */
  int j;

  is_underscoring ();

  if (!init[IMAGEBASEOFF].inited)
    {
      if (bfd_link_relocatable (&link_info))
	init[IMAGEBASEOFF].value = 0;
      else if (init[DLLOFF].value || bfd_link_dll (&link_info))
	{
#ifdef DLL_SUPPORT
	  init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
				      ? compute_dll_image_base (output_filename)
				      : NT_DLL_IMAGE_BASE);
#else
	  init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
#endif
	}
      else
	init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
      init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
    }

  /* Don't do any symbol assignments if this is a relocatable link.  */
  if (bfd_link_relocatable (&link_info))
    return;

  /* Glue the assignments into the abs section.  */
  push_stat_ptr (&abs_output_section->children);

  for (j = 0; init[j].ptr; j++)
    {
      bfd_vma val = init[j].value;
      lang_assignment_statement_type *rv;

      rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
					    exp_intop (val), false));
      if (init[j].size == sizeof (short))
	*(short *) init[j].ptr = (short) val;
      else if (init[j].size == sizeof (int))
	*(int *) init[j].ptr = (int) val;
      else if (init[j].size == sizeof (long))
	*(long *) init[j].ptr = (long) val;
      /* This might be a long long or other special type.  */
      else if (init[j].size == sizeof (bfd_vma))
	*(bfd_vma *) init[j].ptr = val;
      else	abort ();
      if (j == IMAGEBASEOFF)
	image_base_statement = rv;
    }
  /* Restore the pointer.  */
  pop_stat_ptr ();

  if (pep.FileAlignment > pep.SectionAlignment)
    {
      einfo (_("%P: warning, file alignment > section alignment\n"));
    }
}

/* This is called after the linker script and the command line options
   have been read.  */

static void
gld${EMULATION_NAME}_after_parse (void)
{
  /* PR ld/6744:  Warn the user if they have used an ELF-only
     option hoping it will work on PE+.  */
  if (link_info.export_dynamic)
    einfo (_("%P: warning: --export-dynamic is not supported for PE+ "
      "targets, did you mean --export-all-symbols?\n"));

  set_entry_point ();

  after_parse_default ();
}

#ifdef DLL_SUPPORT
static struct bfd_link_hash_entry *pep_undef_found_sym;

static bool
pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
{
  int sl;
  char *string = inf;
  const char *hs = h->root.string;

  sl = strlen (string);
  if (h->type == bfd_link_hash_defined
      && ((*hs == '@' && *string == '_'
		   && strncmp (hs + 1, string + 1, sl - 1) == 0)
		  || strncmp (hs, string, sl) == 0)
      && h->root.string[sl] == '@')
    {
      pep_undef_found_sym = h;
      return false;
    }
  return true;
}

static void
pep_fixup_stdcalls (void)
{
  static int gave_warning_message = 0;
  struct bfd_link_hash_entry *undef, *sym;

  if (pep_dll_extra_pe_debug)
    printf ("%s\n", __FUNCTION__);

  for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
    if (undef->type == bfd_link_hash_undefined)
      {
	char* at = strchr (undef->root.string, '@');
	int lead_at = (*undef->root.string == '@');
	if (lead_at)
	  at = strchr (undef->root.string + 1, '@');
	if (at || lead_at)
	  {
	    /* The symbol is a stdcall symbol, so let's look for a
	       cdecl symbol with the same name and resolve to that.  */
	    char *cname = xstrdup (undef->root.string);

	    if (lead_at)
	      *cname = '_';
	    at = strchr (cname, '@');
	    if (at)
	      *at = 0;
	    sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);

	    if (sym && sym->type == bfd_link_hash_defined)
	      {
		undef->type = bfd_link_hash_defined;
		undef->u.def.value = sym->u.def.value;
		undef->u.def.section = sym->u.def.section;

		if (pep_enable_stdcall_fixup == -1)
		  {
		    einfo (_("warning: resolving %s by linking to %s\n"),
			   undef->root.string, cname);
		    if (! gave_warning_message)
		      {
			gave_warning_message = 1;
			einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
			einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
		      }
		  }
	      }
	  }
	else
	  {
	    /* The symbol is a cdecl symbol, so we look for stdcall
	       symbols - which means scanning the whole symbol table.  */
	    pep_undef_found_sym = 0;
	    bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
				    (char *) undef->root.string);
	    sym = pep_undef_found_sym;
	    if (sym)
	      {
		undef->type = bfd_link_hash_defined;
		undef->u.def.value = sym->u.def.value;
		undef->u.def.section = sym->u.def.section;

		if (pep_enable_stdcall_fixup == -1)
		  {
		    einfo (_("warning: resolving %s by linking to %s\n"),
			   undef->root.string, sym->root.string);
		    if (! gave_warning_message)
		      {
			gave_warning_message = 1;
			einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
			einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
		      }
		  }
	      }
	  }
      }
}

static void
make_import_fixup (arelent *rel, asection *s, char *name, const char *symname)
{
  struct bfd_symbol *sym = *rel->sym_ptr_ptr;
  char addend[8];
  bfd_vma _addend = 0;
  int suc = 0;

  if (pep_dll_extra_pe_debug)
    printf ("arelent: %s@%#lx: add=%li\n", sym->name,
	    (unsigned long) rel->address, (long) rel->addend);

  memset (addend, 0, sizeof (addend));
  switch ((rel->howto->bitsize))
    {
    case 8:
      suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
      if (suc && rel->howto->pc_relative)
	_addend = bfd_get_signed_8 (s->owner, addend);
      else if (suc)
	_addend = bfd_get_8 (s->owner, addend);
      break;
    case 16:
      suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
      if (suc && rel->howto->pc_relative)
	_addend = bfd_get_signed_16 (s->owner, addend);
      else if (suc)
	_addend = bfd_get_16 (s->owner, addend);
      break;
    case 32:
      suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
      if (suc && rel->howto->pc_relative)
	_addend = bfd_get_signed_32 (s->owner, addend);
      else if (suc)
	_addend = bfd_get_32 (s->owner, addend);
      break;
    case 64:
      suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
      if (suc)
	_addend = bfd_get_64 (s->owner, addend);
      break;
    }
  if (! suc)
    einfo (_("%P: %C: cannot get section contents - auto-import exception\n"),
	   s->owner, s, rel->address);

  if (pep_dll_extra_pe_debug)
    {
      printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx",
	      (long) _addend, (long) rel->addend, (long) rel->address);
      if (rel->howto->pc_relative)
	printf (" pcrel");
      printf (" %d bit rel.\n", (int) rel->howto->bitsize);
    }

  pep_create_import_fixup (rel, s, _addend, name, symname);
}

static bool
pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
{
  printf ("+%s\n", h->string);

  return true;
}
#endif /* DLL_SUPPORT */

static void
debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
{
  int *found = (int *) obj;

  if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
    *found = 1;
}

static bool
pecoff_checksum_contents (bfd *abfd,
			  void (*process) (const void *, size_t, void *),
			  void *arg)
{
  file_ptr filepos = (file_ptr) 0;

  while (1)
    {
      unsigned char b;
      int status;

      if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
	return 0;

      status = bfd_bread (&b, (bfd_size_type) 1, abfd);
      if (status < 1)
	{
	  break;
	}

      (*process) (&b, 1, arg);
      filepos += 1;
    }

  return true;
}

static bool
write_build_id (bfd *abfd)
{
  struct pe_tdata *t = pe_data (abfd);
  asection *asec;
  struct bfd_link_order *link_order = NULL;
  unsigned char *contents;
  bfd_size_type size;
  bfd_size_type build_id_size;
  unsigned char *build_id;

  /* Find the section the .buildid output section has been merged info.  */
  for (asec = abfd->sections; asec != NULL; asec = asec->next)
    {
      struct bfd_link_order *l = NULL;
      for (l = asec->map_head.link_order; l != NULL; l = l->next)
	{
	  if (l->type == bfd_indirect_link_order)
	    {
	      if (l->u.indirect.section == t->build_id.sec)
		{
		  link_order = l;
		  break;
		}
	    }
	}

      if (link_order)
	break;
    }

  if (!link_order)
    {
      einfo (_("%P: warning: .buildid section discarded,"
	       " --build-id ignored\n"));
      return true;
    }

  if (t->build_id.sec->contents == NULL)
    t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
  contents = t->build_id.sec->contents;
  size = t->build_id.sec->size;

  build_id_size = compute_build_id_size (t->build_id.style);
  build_id = xmalloc (build_id_size);
  generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);

  bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;

  /* Construct a debug directory entry which points to an immediately following CodeView record.  */
  struct internal_IMAGE_DEBUG_DIRECTORY idd;
  idd.Characteristics = 0;
  idd.TimeDateStamp = 0;
  idd.MajorVersion = 0;
  idd.MinorVersion = 0;
  idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
  idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
  idd.AddressOfRawData = asec->vma - ib + link_order->offset
    + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
  idd.PointerToRawData = asec->filepos + link_order->offset
    + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);

  struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
  _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);

  /* Write the debug directory enttry */
  if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
    return 0;

  if (bfd_bwrite (contents, size, abfd) != size)
    return 0;

  /* Construct the CodeView record.  */
  CODEVIEW_INFO cvinfo;
  cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
  cvinfo.Age = 1;

  /* Zero pad or truncate the generated build_id to fit in the CodeView record.  */
  memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
  memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
	  ? CV_INFO_SIGNATURE_LENGTH :  build_id_size);

  free (build_id);

  /* Write the codeview record.  */
  if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
    return 0;

  /* Record the location of the debug directory in the data directory.  */
  pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
    = asec->vma  - ib + link_order->offset;
  pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
    = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);

  return true;
}

/* Make .buildid section, and set up coff_tdata->build_id. */
static bool
setup_build_id (bfd *ibfd)
{
  asection *s;
  flagword flags;

  if (!validate_build_id_style (emit_build_id))
    {
      einfo (_("%P: warning: unrecognized --build-id style ignored\n"));
      return false;
    }

  flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
	   | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
  s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
  if (s != NULL)
    {
      struct pe_tdata *t = pe_data (link_info.output_bfd);
      t->build_id.after_write_object_contents = &write_build_id;
      t->build_id.style = emit_build_id;
      t->build_id.sec = s;

      /* Section is a fixed size:
	 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
	 pointing at a CV_INFO_PDB70 record containing the build-id, with a
	 null byte for PdbFileName.  */
      s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
	+ sizeof (CV_INFO_PDB70) + 1;

      return true;
    }

  einfo (_("%P: warning: cannot create .buildid section,"
	   " --build-id ignored\n"));
  return false;
}

static void
gld${EMULATION_NAME}_after_open (void)
{
  after_open_default ();

  is_underscoring ();
#ifdef DLL_SUPPORT
  if (pep_dll_extra_pe_debug)
    {
      bfd *a;
      struct bfd_link_hash_entry *sym;

      printf ("%s()\n", __FUNCTION__);

      for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
	printf ("-%s\n", sym->root.string);
      bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);

      for (a = link_info.input_bfds; a; a = a->link.next)
	printf ("*%s\n", bfd_get_filename (a));
    }
#endif

  if (emit_build_id != NULL)
    {
      bfd *abfd;

      /* Find a COFF input.  */
      for (abfd = link_info.input_bfds;
	   abfd != (bfd *) NULL; abfd = abfd->link.next)
	if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
	  break;

      /* If there are no COFF input files do not try to
	 add a build-id section.  */
      if (abfd == NULL
	  || !setup_build_id (abfd))
	{
	  free ((char *) emit_build_id);
	  emit_build_id = NULL;
	}
    }

  /* Pass the wacky PE command line options into the output bfd.
     FIXME: This should be done via a function, rather than by
     including an internal BFD header.  */

  if (bfd_get_flavour (link_info.output_bfd) != bfd_target_coff_flavour
      || coff_data (link_info.output_bfd) == NULL
      || coff_data (link_info.output_bfd)->pe == 0)
    einfo (_("%F%P: cannot perform PE operations on non PE output file '%pB'\n"),
	   link_info.output_bfd);

  pe_data (link_info.output_bfd)->pe_opthdr = pep;
  pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
  pe_data (link_info.output_bfd)->real_flags |= real_flags;
  if (insert_timestamp)
    pe_data (link_info.output_bfd)->timestamp = -1;
  else
    pe_data (link_info.output_bfd)->timestamp = 0;

  /* At this point we must decide whether to use long section names
     in the output or not.  If the user hasn't explicitly specified
     on the command line, we leave it to the default for the format
     (object files yes, image files no), except if there is debug
     information present; GDB relies on the long section names to
     find it, so enable it in that case.  */
  if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
    {
      if (bfd_link_relocatable (&link_info))
	pep_use_coff_long_section_names = 1;
      else
	{
	  /* Iterate over all sections of all input BFDs, checking
	     for any that begin 'debug_' and are long names.  */
	  LANG_FOR_EACH_INPUT_STATEMENT (is)
	  {
	    int found_debug = 0;

	    bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
	    if (found_debug)
	      {
		pep_use_coff_long_section_names = 1;
		break;
	      }
	  }
	}
    }

  pep_output_file_set_long_section_names (link_info.output_bfd);

#ifdef DLL_SUPPORT
  pep_process_import_defs (link_info.output_bfd, &link_info);

  if (link_info.pei386_auto_import) /* -1=warn or 1=enable */
    pep_find_data_imports (U ("_head_"), make_import_fixup);

  /* The implementation of the feature is rather dumb and would cause the
     compilation time to go through the roof if there are many undefined
     symbols in the link, so it needs to be run after auto-import.  */
  if (pep_enable_stdcall_fixup) /* -1=warn or 1=enable */
    pep_fixup_stdcalls ();

#ifndef TARGET_IS_i386pep
  if (bfd_link_pic (&link_info))
#else
  if (!bfd_link_relocatable (&link_info))
#endif
    pep_dll_build_sections (link_info.output_bfd, &link_info);

#ifndef TARGET_IS_i386pep
  else
    pep_exe_build_sections (link_info.output_bfd, &link_info);
#endif
#endif /* DLL_SUPPORT */

  {
    /* This next chunk of code tries to detect the case where you have
       two import libraries for the same DLL (specifically,
       symbolically linking libm.a and libc.a in cygwin to
       libcygwin.a).  In those cases, it's possible for function
       thunks from the second implib to be used but without the
       head/tail objects, causing an improper import table.  We detect
       those cases and rename the "other" import libraries to match
       the one the head/tail come from, so that the linker will sort
       things nicely and produce a valid import table.  */

    LANG_FOR_EACH_INPUT_STATEMENT (is)
      {
	if (is->the_bfd->my_archive)
	  {
	    int idata2 = 0, reloc_count=0, is_imp = 0;
	    asection *sec;

	    /* See if this is an import library thunk.  */
	    for (sec = is->the_bfd->sections; sec; sec = sec->next)
	      {
		if (strcmp (sec->name, ".idata\$2") == 0)
		  idata2 = 1;
		if (startswith (sec->name, ".idata\$"))
		  is_imp = 1;
		reloc_count += sec->reloc_count;
	      }

	    if (is_imp && !idata2 && reloc_count)
	      {
		/* It is, look for the reference to head and see if it's
		   from our own library.  */
		for (sec = is->the_bfd->sections; sec; sec = sec->next)
		  {
		    int i;
		    long relsize;
		    asymbol **symbols;
		    arelent **relocs;
		    int nrelocs;

		    relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
		    if (relsize < 1)
		      break;

		    if (!bfd_generic_link_read_symbols (is->the_bfd))
		      {
			einfo (_("%F%P: %pB: could not read symbols: %E\n"),
			       is->the_bfd);
			return;
		      }
		    symbols = bfd_get_outsymbols (is->the_bfd);

		    relocs = xmalloc ((size_t) relsize);
		    nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
						      relocs, symbols);
		    if (nrelocs < 0)
		      {
			free (relocs);
			einfo (_("%X%P: unable to process relocs: %E\n"));
			return;
		      }

		    for (i = 0; i < nrelocs; i++)
		      {
			struct bfd_symbol *s;
			struct bfd_link_hash_entry * blhe;
			bfd *other_bfd;
			const char *other_bfd_filename;

			s = (relocs[i]->sym_ptr_ptr)[0];

			if (s->flags & BSF_LOCAL)
			  continue;

			/* Thunk section with reloc to another bfd.  */
			blhe = bfd_link_hash_lookup (link_info.hash,
						     s->name,
						     false, false, true);

			if (blhe == NULL
			    || blhe->type != bfd_link_hash_defined)
			  continue;

			other_bfd = blhe->u.def.section->owner;
			if (other_bfd->my_archive == is->the_bfd->my_archive)
			  continue;

			other_bfd_filename
			  = (other_bfd->my_archive
			     ? bfd_get_filename (other_bfd->my_archive)
			     : bfd_get_filename (other_bfd));

			if (filename_cmp (bfd_get_filename
					    (is->the_bfd->my_archive),
					  other_bfd_filename) == 0)
			  continue;

			/* Sort this implib to match the other one.  */
			lang_input_statement_type *arch_is
			  = bfd_usrdata (is->the_bfd->my_archive);
			arch_is->sort_key = other_bfd_filename;
			break;
		      }

		    free (relocs);
		    /* Note - we do not free the symbols,
		       they are now cached in the BFD.  */
		  }
	      }
	  }
      }
  }

  {

    /* Careful - this is a shell script.  Watch those dollar signs! */
    /* Microsoft import libraries have every member named the same,
       and not in the right order for us to link them correctly.  We
       must detect these and rename the members so that they'll link
       correctly.  There are three types of objects: the head, the
       thunks, and the sentinel(s).  The head is easy; it's the one
       with idata2.  We assume that the sentinels won't have relocs,
       and the thunks will.  It's easier than checking the symbol
       table for external references.  */
    LANG_FOR_EACH_INPUT_STATEMENT (is)
      {
	if (is->the_bfd->my_archive)
	  {
	    char *pnt;

	    /* Microsoft import libraries may contain archive members for
	       one or more DLLs, together with static object files.
	       Inspect all members that are named *.dll - check whether
	       they contain .idata sections. Do the renaming of all
	       archive members that seem to be Microsoft style import
	       objects.  */
	    pnt = strrchr (bfd_get_filename (is->the_bfd), '.');

	    if (pnt != NULL && (fileext_cmp (pnt + 1, "dll") == 0))
	      {
		int idata2 = 0, reloc_count = 0, idata = 0;
		asection *sec;
		char *new_name, seq;

		for (sec = is->the_bfd->sections; sec; sec = sec->next)
		  {
		    if (strcmp (sec->name, ".idata\$2") == 0)
		      idata2 = 1;
		    if (strncmp (sec->name, ".idata\$", 6) == 0)
		      idata = 1;
		    reloc_count += sec->reloc_count;
		  }

		/* An archive member named .dll, but not having any .idata
		   sections - apparently not a Microsoft import object
		   after all: Skip renaming it.  */
		if (!idata)
		  continue;

		if (idata2) /* .idata2 is the TOC */
		  seq = 'a';
		else if (reloc_count > 0) /* thunks */
		  seq = 'b';
		else /* sentinel */
		  seq = 'c';

		new_name
		  = xmalloc (strlen (bfd_get_filename (is->the_bfd)) + 3);
		sprintf (new_name, "%s.%c",
			 bfd_get_filename (is->the_bfd), seq);
		is->sort_key = new_name;
	      }
	  }
      }
  }
}
\f
static void
gld${EMULATION_NAME}_before_allocation (void)
{
  is_underscoring ();
  before_allocation_default ();
}
\f
#ifdef DLL_SUPPORT
/* This is called when an input file isn't recognized as a BFD.  We
   check here for .DEF files and pull them in automatically.  */

static int
saw_option (char *option)
{
  int i;

  is_underscoring ();

  for (i = 0; init[i].ptr; i++)
    if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
      return init[i].inited;
  return 0;
}
#endif /* DLL_SUPPORT */

static bool
gld${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
{
#ifdef DLL_SUPPORT
  const char *ext = strrchr (entry->filename, '.');

  if (ext != NULL && fileext_cmp (ext + 1, "def") == 0)
    {
      pep_def_file = def_file_parse (entry->filename, pep_def_file);

      if (pep_def_file)
	{
	  int i, buflen=0, len;
	  char *buf;

	  for (i = 0; i < pep_def_file->num_exports; i++)
	    {
	      len = strlen (pep_def_file->exports[i].internal_name);
	      if (buflen < len + 2)
		buflen = len + 2;
	    }

	  buf = xmalloc (buflen);

	  for (i = 0; i < pep_def_file->num_exports; i++)
	    {
	      struct bfd_link_hash_entry *h;

	      sprintf (buf, "%s%s", U (""),
		       pep_def_file->exports[i].internal_name);

	      h = bfd_link_hash_lookup (link_info.hash, buf, true, true, true);
	      if (h == (struct bfd_link_hash_entry *) NULL)
		einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n"));
	      if (h->type == bfd_link_hash_new)
		{
		  h->type = bfd_link_hash_undefined;
		  h->u.undef.abfd = NULL;
		  bfd_link_add_undef (link_info.hash, h);
		}
	    }
	  free (buf);

	  /* def_file_print (stdout, pep_def_file); */
	  if (pep_def_file->is_dll == 1)
	    link_info.type = type_dll;

	  if (pep_def_file->base_address != (bfd_vma)(-1))
	    {
	      pep.ImageBase
		= pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
		= init[IMAGEBASEOFF].value
		= pep_def_file->base_address;
	      init[IMAGEBASEOFF].inited = 1;
	      if (image_base_statement)
		image_base_statement->exp
		  = exp_assign ("__image_base__", exp_intop (pep.ImageBase),
				false);
	    }

	  if (pep_def_file->stack_reserve != -1
	      && ! saw_option ("__size_of_stack_reserve__"))
	    {
	      pep.SizeOfStackReserve = pep_def_file->stack_reserve;
	      if (pep_def_file->stack_commit != -1)
		pep.SizeOfStackCommit = pep_def_file->stack_commit;
	    }
	  if (pep_def_file->heap_reserve != -1
	      && ! saw_option ("__size_of_heap_reserve__"))
	    {
	      pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
	      if (pep_def_file->heap_commit != -1)
		pep.SizeOfHeapCommit = pep_def_file->heap_commit;
	    }
	  return true;
	}
    }
#endif
  return false;
}

static bool
gld${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
{
  is_underscoring ();
#ifdef DLL_SUPPORT
#ifdef TARGET_IS_i386pep
  pep_dll_id_target ("pei-x86-64");
#endif
  if (pep_bfd_is_dll (entry->the_bfd))
    return pep_implied_import_dll (entry->filename);
#endif
  return false;
}

static void
gld${EMULATION_NAME}_finish (void)
{
  is_underscoring ();
  finish_default ();

#ifdef DLL_SUPPORT
  if (bfd_link_pic (&link_info)
      || pep_dll_enable_reloc_section
      || (!bfd_link_relocatable (&link_info)
	  && pep_def_file->num_exports != 0))
    {
      pep_dll_fill_sections (link_info.output_bfd, &link_info);
      if (command_line.out_implib_filename
          && (pep_def_file->num_exports != 0
              || bfd_link_pic (&link_info)))
	pep_dll_generate_implib (pep_def_file,
				 command_line.out_implib_filename, &link_info);
    }

  if (pep_out_def_filename)
    pep_dll_generate_def_file (pep_out_def_filename);
#endif /* DLL_SUPPORT */

  /* I don't know where .idata gets set as code, but it shouldn't be.  */
  {
    asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");

    if (asec)
      {
	asec->flags &= ~SEC_CODE;
	asec->flags |= SEC_DATA;
      }
  }
}

\f
/* Place an orphan section.

   We use this to put sections in a reasonable place in the file, and
   to ensure that they are aligned as required.

   We handle grouped sections here as well.  A section named .foo\$nn
   goes into the output section .foo.  All grouped sections are sorted
   by name.

   Grouped sections for the default sections are handled by the
   default linker script using wildcards, and are sorted by
   sort_sections.  */

static lang_output_section_statement_type *
gld${EMULATION_NAME}_place_orphan (asection *s,
				    const char *secname,
				    int constraint)
{
  const char *orig_secname = secname;
  char *dollar = NULL;
  lang_output_section_statement_type *os;
  lang_statement_list_type add_child;
  lang_output_section_statement_type *match_by_name = NULL;
  lang_statement_union_type **pl;

  /* Look through the script to see where to place this section.  */
  if (!bfd_link_relocatable (&link_info)
      && (dollar = strchr (secname, '\$')) != NULL)
    {
      size_t len = dollar - secname;
      char *newname = xmalloc (len + 1);
      memcpy (newname, secname, len);
      newname[len] = '\0';
      secname = newname;
    }

  lang_list_init (&add_child);

  os = NULL;
  if (constraint == 0)
    for (os = lang_output_section_find (secname);
	 os != NULL;
	 os = next_matching_output_section_statement (os, 0))
      {
	/* If we don't match an existing output section, tell
	   lang_insert_orphan to create a new output section.  */
	constraint = SPECIAL;

	if (os->bfd_section != NULL
	    && (os->bfd_section->flags == 0
		|| ((s->flags ^ os->bfd_section->flags)
		    & (SEC_LOAD | SEC_ALLOC)) == 0))
	  {
	    /* We already have an output section statement with this
	       name, and its bfd section has compatible flags.
	       If the section already exists but does not have any flags set,
	       then it has been created by the linker, probably as a result of
	       a --section-start command line switch.  */
	    lang_add_section (&add_child, s, NULL, NULL, os);
	    break;
	  }

	/* Save unused output sections in case we can match them
	   against orphans later.  */
	if (os->bfd_section == NULL)
	  match_by_name = os;
      }

  /* If we didn't match an active output section, see if we matched an
     unused one and use that.  */
  if (os == NULL && match_by_name)
    {
      lang_add_section (&match_by_name->children, s, NULL, NULL, match_by_name);
      return match_by_name;
    }

  if (os == NULL)
    {
      static struct orphan_save hold[] =
	{
	  { ".text",
	    SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
	    0, 0, 0, 0 },
	  { ".idata",
	    SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
	    0, 0, 0, 0 },
	  { ".rdata",
	    SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
	    0, 0, 0, 0 },
	  { ".data",
	    SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
	    0, 0, 0, 0 },
	  { ".bss",
	    SEC_ALLOC,
	    0, 0, 0, 0 }
	};
      enum orphan_save_index
	{
	  orphan_text = 0,
	  orphan_idata,
	  orphan_rodata,
	  orphan_data,
	  orphan_bss
	};
      static int orphan_init_done = 0;
      struct orphan_save *place;
      lang_output_section_statement_type *after;
      etree_type *address;
      flagword flags;
      asection *nexts;

      if (!orphan_init_done)
	{
	  struct orphan_save *ho;
	  for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
	    if (ho->name != NULL)
	      {
		ho->os = lang_output_section_find (ho->name);
		if (ho->os != NULL && ho->os->flags == 0)
		  ho->os->flags = ho->flags;
	      }
	  orphan_init_done = 1;
	}

      flags = s->flags;
      if (!bfd_link_relocatable (&link_info))
	{
	  nexts = s;
	  while ((nexts = bfd_get_next_section_by_name (nexts->owner,
							nexts)))
	    if (nexts->output_section == NULL
		&& (nexts->flags & SEC_EXCLUDE) == 0
		&& ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
		&& (nexts->owner->flags & DYNAMIC) == 0
		&& !bfd_input_just_syms (nexts->owner))
	      flags = (((flags ^ SEC_READONLY)
			| (nexts->flags ^ SEC_READONLY))
		       ^ SEC_READONLY);
	}

      /* Try to put the new output section in a reasonable place based
	 on the section name and section flags.  */

      place = NULL;
      if ((flags & SEC_ALLOC) == 0)
	;
      else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
	place = &hold[orphan_bss];
      else if ((flags & SEC_READONLY) == 0)
	place = &hold[orphan_data];
      else if ((flags & SEC_CODE) == 0)
	{
	  place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
						     : &hold[orphan_rodata]);
	}
      else
	place = &hold[orphan_text];

      after = NULL;
      if (place != NULL)
	{
	  if (place->os == NULL)
	    place->os = lang_output_section_find (place->name);
	  after = place->os;
	  if (after == NULL)
	    after = lang_output_section_find_by_flags (s, flags, &place->os,
						       NULL);
	  if (after == NULL)
	    /* *ABS* is always the first output section statement.  */
	    after = (void *) lang_os_list.head;
	}

      /* All sections in an executable must be aligned to a page boundary.
	 In a relocatable link, just preserve the incoming alignment; the
	 address is discarded by lang_insert_orphan in that case, anyway.  */
      address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
      os = lang_insert_orphan (s, secname, constraint, after, place, address,
			       &add_child);
      if (bfd_link_relocatable (&link_info))
	{
	  os->section_alignment = exp_intop (1U << s->alignment_power);
	  os->bfd_section->alignment_power = s->alignment_power;
	}
    }

  /* If the section name has a '\$', sort it with the other '\$'
     sections.  */
  for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
    {
      lang_input_section_type *ls;
      const char *lname;

      if ((*pl)->header.type != lang_input_section_enum)
	continue;

      ls = &(*pl)->input_section;

      lname = bfd_section_name (ls->section);
      if (strchr (lname, '\$') != NULL
	  && (dollar == NULL || strcmp (orig_secname, lname) < 0))
	break;
    }

  if (add_child.head != NULL)
    {
      *add_child.tail = *pl;
      *pl = add_child.head;
    }

  return os;
}

static bool
gld${EMULATION_NAME}_open_dynamic_archive
  (const char *arch ATTRIBUTE_UNUSED,
   search_dirs_type *search,
   lang_input_statement_type *entry)
{
  static const struct
    {
      const char * format;
      bool use_prefix;
    }
  libname_fmt [] =
    {
      /* Preferred explicit import library for dll's.  */
      { "lib%s.dll.a", false },
      /* Alternate explicit import library for dll's.  */
      { "%s.dll.a", false },
      /* "libfoo.a" could be either an import lib or a static lib.
	 For backwards compatibility, libfoo.a needs to precede
	 libfoo.dll and foo.dll in the search.  */
      { "lib%s.a", false },
      /* The 'native' spelling of an import lib name is "foo.lib".  */
      { "%s.lib", false },
      /* PR 22948 - Check for an import library.  */
      { "lib%s.lib", false },
#ifdef DLL_SUPPORT
      /* Try "<prefix>foo.dll" (preferred dll name, if specified).  */
      {	"%s%s.dll", true },
#endif
      /* Try "libfoo.dll" (default preferred dll name).  */
      {	"lib%s.dll", false },
      /* Finally try 'native' dll name "foo.dll".  */
      {  "%s.dll", false },
      /* Note: If adding more formats to this table, make sure to check to
	 see if their length is longer than libname_fmt[0].format, and if
	 so, update the call to xmalloc() below.  */
      { NULL, false }
    };
  static unsigned int format_max_len = 0;
  const char * filename;
  char * full_string;
  char * base_string;
  unsigned int i;


  if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
    return false;

  filename = entry->filename;

  if (format_max_len == 0)
    /* We need to allow space in the memory that we are going to allocate
       for the characters in the format string.  Since the format array is
       static we only need to calculate this information once.  In theory
       this value could also be computed statically, but this introduces
       the possibility for a discrepancy and hence a possible memory
       corruption.  The lengths we compute here will be too long because
       they will include any formating characters (%s) in the strings, but
       this will not matter.  */
    for (i = 0; libname_fmt[i].format; i++)
      if (format_max_len < strlen (libname_fmt[i].format))
	format_max_len = strlen (libname_fmt[i].format);

  full_string = xmalloc (strlen (search->name)
			 + strlen (filename)
			 + format_max_len
#ifdef DLL_SUPPORT
			 + (pep_dll_search_prefix
			    ? strlen (pep_dll_search_prefix) : 0)
#endif
			 /* Allow for the terminating NUL and for the path
			    separator character that is inserted between
			    search->name and the start of the format string.  */
			 + 2);

  sprintf (full_string, "%s/", search->name);
  base_string = full_string + strlen (full_string);

  for (i = 0; libname_fmt[i].format; i++)
    {
#ifdef DLL_SUPPORT
      if (libname_fmt[i].use_prefix)
	{
	  if (!pep_dll_search_prefix)
	    continue;
	  sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
	}
      else
#endif
	sprintf (base_string, libname_fmt[i].format, filename);

      if (ldfile_try_open_bfd (full_string, entry))
	break;
    }

  if (!libname_fmt[i].format)
    {
      free (full_string);
      return false;
    }

  entry->filename = full_string;

  return true;
}

static int
gld${EMULATION_NAME}_find_potential_libraries
  (char *name, lang_input_statement_type *entry)
{
  return ldfile_open_file_search (name, entry, "", ".lib");
}
\f
static char *
gld${EMULATION_NAME}_get_script (int *isfile)
EOF

if test x"$COMPILE_IN" = xyes
then
# Scripts compiled in.

# sed commands to quote an ld script as a C string.
sc="-f stringify.sed"

fragment <<EOF
{
  *isfile = 0;

  if (bfd_link_relocatable (&link_info) && config.build_constructors)
    return
EOF
sed $sc ldscripts/${EMULATION_NAME}.xu			>> e${EMULATION_NAME}.c
echo '  ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xr			>> e${EMULATION_NAME}.c
echo '  ; else if (!config.text_read_only) return'	>> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xbn			>> e${EMULATION_NAME}.c
echo '  ; else if (!config.magic_demand_paged) return'	>> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xn			>> e${EMULATION_NAME}.c
if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
echo '  ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return'	>> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.xa			>> e${EMULATION_NAME}.c
fi
echo '  ; else return'					>> e${EMULATION_NAME}.c
sed $sc ldscripts/${EMULATION_NAME}.x			>> e${EMULATION_NAME}.c
echo '; }'						>> e${EMULATION_NAME}.c

else
# Scripts read from the filesystem.

fragment <<EOF
{
  *isfile = 1;

  if (bfd_link_relocatable (&link_info) && config.build_constructors)
    return "ldscripts/${EMULATION_NAME}.xu";
  else if (bfd_link_relocatable (&link_info))
    return "ldscripts/${EMULATION_NAME}.xr";
  else if (!config.text_read_only)
    return "ldscripts/${EMULATION_NAME}.xbn";
  else if (!config.magic_demand_paged)
    return "ldscripts/${EMULATION_NAME}.xn";
EOF
if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
fragment <<EOF
  else if (link_info.pei386_auto_import == 1
	   && link_info.pei386_runtime_pseudo_reloc != 2)
    return "ldscripts/${EMULATION_NAME}.xa";
EOF
fi
fragment <<EOF
  else
    return "ldscripts/${EMULATION_NAME}.x";
}
EOF
fi

LDEMUL_AFTER_PARSE=gld${EMULATION_NAME}_after_parse
LDEMUL_AFTER_OPEN=gld${EMULATION_NAME}_after_open
LDEMUL_BEFORE_ALLOCATION=gld${EMULATION_NAME}_before_allocation
LDEMUL_FINISH=gld${EMULATION_NAME}_finish
LDEMUL_OPEN_DYNAMIC_ARCHIVE=gld${EMULATION_NAME}_open_dynamic_archive
LDEMUL_PLACE_ORPHAN=gld${EMULATION_NAME}_place_orphan
LDEMUL_SET_SYMBOLS=gld${EMULATION_NAME}_set_symbols
LDEMUL_ADD_OPTIONS=gld${EMULATION_NAME}_add_options
LDEMUL_HANDLE_OPTION=gld${EMULATION_NAME}_handle_option
LDEMUL_UNRECOGNIZED_FILE=gld${EMULATION_NAME}_unrecognized_file
LDEMUL_LIST_OPTIONS=gld${EMULATION_NAME}_list_options
LDEMUL_RECOGNIZED_FILE=gld${EMULATION_NAME}_recognized_file
LDEMUL_FIND_POTENTIAL_LIBRARIES=gld${EMULATION_NAME}_find_potential_libraries

source_em ${srcdir}/emultempl/emulation.em