# This shell script emits a C file. -*- C -*-

# 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
*-*-mingw*)
mingw_behavior=1
;;
*)
mingw_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) 1995-2025 Free Software Foundation, Inc.

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_NT */
/* The original file generated returned different default scripts depending
on whether certain switches were set, but these switches pertain to the
Linux system and that particular version of coff. In the NT case, we
only determine if the subsystem is console or windows in order to select
the correct entry point by default. */

#define TARGET_IS_${EMULATION_NAME}

#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"
EOF

case ${target} in
x86_64-*-mingw* | x86_64-*-pe | x86_64-*-pep | x86_64-*-cygwin | \
i[3-7]86-*-mingw32* | i[3-7]86-*-cygwin* | i[3-7]86-*-winnt | i[3-7]86-*-pe)
fragment <<EOF
#include "pdb.h"
EOF
;;
esac

fragment <<EOF

/* FIXME: See bfd/peXXigen.c for why we include an architecture specific
header in generic PE code. */
#include "coff/i386.h"
#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"

#if defined(TARGET_IS_armpe) \
|| defined(TARGET_IS_arm_wince_pe)
#define bfd_arm_allocate_interworking_sections \
bfd_${EMULATION_NAME}_allocate_interworking_sections
#define bfd_arm_get_bfd_for_interworking \
bfd_${EMULATION_NAME}_get_bfd_for_interworking
#define bfd_arm_process_before_allocation \
bfd_${EMULATION_NAME}_process_before_allocation
#include "coff-arm.h"
#endif

#include "deffile.h"
#include "pe-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

#if defined(TARGET_IS_i386pe) \
|| defined(TARGET_IS_shpe) \
|| defined(TARGET_IS_armpe) \
|| defined(TARGET_IS_arm_wince_pe)
#define DLL_SUPPORT
#endif

#if defined(TARGET_IS_i386pe)
#define DEFAULT_PSEUDO_RELOC_VERSION 2
#else
#define DEFAULT_PSEUDO_RELOC_VERSION 1
#endif

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

#if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
#define PE_DEF_SUBSYSTEM IMAGE_SUBSYSTEM_WINDOWS_CUI
#else
#undef NT_EXE_IMAGE_BASE
#undef PE_DEF_SECTION_ALIGNMENT
#undef PE_DEF_FILE_ALIGNMENT
#define NT_EXE_IMAGE_BASE 0x00010000

#if defined(TARGET_IS_armpe)
#define PE_DEF_SECTION_ALIGNMENT 0x00001000
#define PE_DEF_SUBSYSTEM IMAGE_SUBSYSTEM_WINDOWS_GUI
#elif defined(TARGET_IS_arm_wince_pe)
#define PE_DEF_SECTION_ALIGNMENT 0x00001000
#define PE_DEF_SUBSYSTEM IMAGE_SUBSYSTEM_WINDOWS_CE_GUI
#else
#define PE_DEF_SECTION_ALIGNMENT 0x00000400
#define PE_DEF_SUBSYSTEM IMAGE_SUBSYSTEM_WINDOWS_GUI
#endif
#define PE_DEF_FILE_ALIGNMENT 0x00000200
#endif

static struct internal_extra_pe_aouthdr pe;
static int dll;
static int pe_subsystem = ${SUBSYSTEM};
static flagword real_flags = 0;
static int support_old_code = 0;
static char * thumb_entry_symbol = NULL;
static lang_assignment_statement_type *image_base_statement = 0;
static unsigned short pe_dll_characteristics = DEFAULT_DLL_CHARACTERISTICS;
static bool insert_timestamp = true;
static bool orphan_init_done;
static const char *emit_build_id;
#ifdef PDB_H
static int pdb;
static char *pdb_name;
#endif

#ifdef DLL_SUPPORT
static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
static char *pe_out_def_filename = NULL;
static int pe_enable_auto_image_base = 0;
static unsigned long pe_auto_image_base = 0x61500000;
static char *pe_dll_search_prefix = NULL;
#endif

extern const char *output_filename;

static int
is_underscoring (void)
{
int u = 0;
if (pe_leading_underscore != -1)
return pe_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 ();
pe_leading_underscore = (u != 0 ? 1 : 0);
return pe_leading_underscore;
}

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;
EOF

# Cygwin no longer wants these noisy warnings. Other PE
# targets might like to consider adding themselves here.
# See also the mail thread starting here for the reason why
# merge_rdata defaults to 0 for cygwin:
# http://cygwin.com/ml/cygwin-apps/2013-04/msg00187.html
case ${target} in
*-*-cygwin*)
default_auto_import=1
default_merge_rdata=0
;;
i[3-7]86-*-mingw* | x86_64-*-mingw*)
default_auto_import=1
default_merge_rdata=0
;;
*)
default_auto_import=-1
default_merge_rdata=1
;;
esac

fragment <<EOF
link_info.pei386_auto_import = ${default_auto_import};
/* Use by default version. */
link_info.pei386_runtime_pseudo_reloc = DEFAULT_PSEUDO_RELOC_VERSION;
#endif
}

/* Indicates if RDATA shall be merged into DATA when pseudo-relocation
version 2 is used and auto-import is enabled. */
#define MERGE_RDATA_V2 ${default_merge_rdata}

/* PE format extra command line options. */

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},
{"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},
{"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
{"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},
{"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
{"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
#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", optional_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-pe-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-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
{"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
#endif
{"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
{"disable-large-address-aware", no_argument, NULL, OPTION_DISABLE_LARGE_ADDRESS_AWARE},
{"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
{"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
{"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
{"disable-dynamicbase",no_argument, NULL, OPTION_DISABLE_DYNAMIC_BASE},
{"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
{"disable-forceinteg", no_argument, NULL, OPTION_DISABLE_FORCE_INTEGRITY},
{"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
{"disable-nxcompat", no_argument, NULL, OPTION_DISABLE_NX_COMPAT},
{"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
{"disable-no-isolation", no_argument, NULL, OPTION_DISABLE_NO_ISOLATION},
{"no-seh", no_argument, NULL, OPTION_NO_SEH},
{"disable-no-seh", no_argument, NULL, OPTION_DISABLE_NO_SEH},
{"no-bind", no_argument, NULL, OPTION_NO_BIND},
{"disable-no-bind", no_argument, NULL, OPTION_DISABLE_NO_BIND},
{"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
{"disable-wdmdriver", no_argument, NULL, OPTION_DISABLE_WDM_DRIVER},
{"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
{"disable-tsaware", no_argument, NULL, OPTION_DISABLE_TERMINAL_SERVER_AWARE},
{"build-id", optional_argument, NULL, OPTION_BUILD_ID},
#ifdef PDB_H
{"pdb", required_argument, NULL, OPTION_PDB},
#endif
{"enable-reloc-section", no_argument, NULL, OPTION_ENABLE_RELOC_SECTION},
{"disable-reloc-section", no_argument, NULL, OPTION_DISABLE_RELOC_SECTION},
{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;
int 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 to target's
settings. */
bool is_c_symbol;
} definfo;

/* Get symbol name dependent to kind and C visible state of
underscore. */
#define GET_INIT_SYMBOL_NAME(IDX) \
(init[(IDX)].symbol \
+ ((!init[(IDX)].is_c_symbol || is_underscoring () != 0) ? 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) {&pe.field, sizeof (pe.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__", 1, false),
D(MinorImageVersion,"__minor_image_version__", 0, false),
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
D(MajorSubsystemVersion,"__major_subsystem_version__", 3, false),
#else
D(MajorSubsystemVersion,"__major_subsystem_version__", 4, false),
#endif
D(MinorSubsystemVersion,"__minor_subsystem_version__", 0, 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, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\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[=<address>] Automatically choose image base for DLLs\n\
(optionally starting with address) unless\n\
specifically set with --image-base\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-pe-debug Enable verbose debug output when building\n\
or linking to DLLs (esp. auto-import)\n"));
#endif
fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
greater than 2 gigabytes\n"));
fprintf (file, _(" --disable-large-address-aware Executable does not support virtual\n\
addresses greater than 2 gigabytes\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-]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"));
#ifdef PDB_H
fprintf (file, _(" --pdb=[FILENAME] Generate PDB file\n"));
#endif
}

/* 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
set_pe_name (char *name, long 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_pe_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)
{
#if defined (TARGET_IS_i386pe)
entry = "DllMainCRTStartup@12";
#else
entry = "DllMainCRTStartup";
#endif
}
else
{
for (i = 0; v[i].entry; i++)
if (v[i].value == pe_subsystem)
break;

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

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);

if (bfd_link_executable (&link_info) && ! entry_from_cmdline)
ldlang_add_undef (entry, false);
}

static void
set_pe_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_pe_name ("__major_subsystem_version__",
strtoul (sver + 1, &end, 0));
if (*end == '.')
set_pe_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. */
pe_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)
{
fatal (_("%P: invalid subsystem type %s\n"), optarg);
return;
}

pe_subsystem = v[i].value;
}

set_pe_name ("__subsystem__", pe_subsystem);

return;
}

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

set_pe_name (name, strtoul (optarg, &end, 0));

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

optarg = end;
}

static void
set_pe_stack_heap (char *resname, char *comname)
{
set_pe_value (resname);

if (*optarg == ',')
{
optarg++;
set_pe_value (comname);
}
else if (*optarg)
fatal (_("%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)
{
switch (optc)
{
default:
return false;

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

/* PE options. */
case OPTION_HEAP:
set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
break;
case OPTION_STACK:
set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
break;
case OPTION_SUBSYSTEM:
set_pe_subsystem ();
break;
case OPTION_MAJOR_OS_VERSION:
set_pe_value ("__major_os_version__");
break;
case OPTION_MINOR_OS_VERSION:
set_pe_value ("__minor_os_version__");
break;
case OPTION_MAJOR_SUBSYSTEM_VERSION:
set_pe_value ("__major_subsystem_version__");
break;
case OPTION_MINOR_SUBSYSTEM_VERSION:
set_pe_value ("__minor_subsystem_version__");
break;
case OPTION_MAJOR_IMAGE_VERSION:
set_pe_value ("__major_image_version__");
break;
case OPTION_MINOR_IMAGE_VERSION:
set_pe_value ("__minor_image_version__");
break;
case OPTION_FILE_ALIGNMENT:
set_pe_value ("__file_alignment__");
break;
case OPTION_SECTION_ALIGNMENT:
set_pe_value ("__section_alignment__");
break;
case OPTION_DLL:
set_pe_name ("__dll__", 1);
break;
case OPTION_IMAGE_BASE:
set_pe_value ("__image_base__");
break;
case OPTION_SUPPORT_OLD_CODE:
support_old_code = 1;
break;
case OPTION_THUMB_ENTRY:
thumb_entry_symbol = optarg;
break;
case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
pe_use_nul_prefixed_import_tables = true;
break;
case OPTION_NO_LEADING_UNDERSCORE:
pe_leading_underscore = 0;
break;
case OPTION_LEADING_UNDERSCORE:
pe_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:
pe_out_def_filename = xstrdup (optarg);
break;
case OPTION_EXPORT_ALL:
pe_dll_export_everything = 1;
break;
case OPTION_EXCLUDE_SYMBOLS:
pe_dll_add_excludes (optarg, EXCLUDESYMS);
break;
case OPTION_EXCLUDE_ALL_SYMBOLS:
pe_dll_exclude_all_symbols = 1;
break;
case OPTION_EXCLUDE_LIBS:
pe_dll_add_excludes (optarg, EXCLUDELIBS);
break;
case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
break;
case OPTION_KILL_ATS:
pe_dll_kill_ats = 1;
break;
case OPTION_STDCALL_ALIASES:
pe_dll_stdcall_aliases = 1;
break;
case OPTION_ENABLE_STDCALL_FIXUP:
pe_enable_stdcall_fixup = 1;
break;
case OPTION_DISABLE_STDCALL_FIXUP:
pe_enable_stdcall_fixup = 0;
break;
case OPTION_WARN_DUPLICATE_EXPORTS:
pe_dll_warn_dup_exports = 1;
break;
case OPTION_IMP_COMPAT:
pe_dll_compat_implib = 1;
break;
case OPTION_ENABLE_AUTO_IMAGE_BASE:
pe_enable_auto_image_base = 1;
if (optarg && *optarg)
{
char *end;
pe_auto_image_base = strtoul (optarg, &end, 0);
/* XXX should check that we actually parsed something */
}
break;
case OPTION_DISABLE_AUTO_IMAGE_BASE:
pe_enable_auto_image_base = 0;
break;
case OPTION_DLL_SEARCH_PREFIX:
pe_dll_search_prefix = xstrdup (optarg);
break;
case OPTION_NO_DEFAULT_EXCLUDES:
pe_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 =
DEFAULT_PSEUDO_RELOC_VERSION;
break;
case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
link_info.pei386_runtime_pseudo_reloc = 1;
break;
case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
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_ENABLE_EXTRA_PE_DEBUG:
pe_dll_extra_pe_debug = 1;
break;
#endif
case OPTION_LARGE_ADDRESS_AWARE:
real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
break;
case OPTION_DISABLE_LARGE_ADDRESS_AWARE:
real_flags &= ~ IMAGE_FILE_LARGE_ADDRESS_AWARE;
break;
case OPTION_ENABLE_LONG_SECTION_NAMES:
pe_use_coff_long_section_names = 1;
break;
case OPTION_DISABLE_LONG_SECTION_NAMES:
pe_use_coff_long_section_names = 0;
break;
/* Get DLLCharacteristics bits */
case OPTION_DYNAMIC_BASE:
pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
/* fall through */
case OPTION_ENABLE_RELOC_SECTION:
pe_dll_enable_reloc_section = 1;
break;
case OPTION_DISABLE_RELOC_SECTION:
pe_dll_enable_reloc_section = 0;
/* fall through */
case OPTION_DISABLE_DYNAMIC_BASE:
pe_dll_characteristics &= ~ IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
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;
#ifdef PDB_H
case OPTION_PDB:
pdb = 1;
if (optarg && optarg[0])
pdb_name = xstrdup (optarg);
break;
#endif
}

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

return true;
}

#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 unsigned long
compute_dll_image_base (const char *ofile)
{
unsigned long hash = strhash (ofile);
return pe_auto_image_base + ((hash << 16) & 0x0FFC0000);
}
#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 = (pe_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++)
{
long 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 = val;
else if (init[j].size == sizeof (int))
*(int *) init[j].ptr = val;
else if (init[j].size == sizeof (long))
*(long *) init[j].ptr = 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 (pe.FileAlignment > pe.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"));

#ifdef PDB_H
if (pdb && emit_build_id == NULL)
emit_build_id = xstrdup (DEFAULT_BUILD_ID_STYLE);
#endif

set_entry_point ();

after_parse_default ();
}

#ifdef DLL_SUPPORT
static struct bfd_link_hash_entry *pe_undef_found_sym;

static bool
pe_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] == '@')
{
pe_undef_found_sym = h;
return false;
}
return true;
}

/* Change UNDEF to a defined symbol, taking data from SYM. */

static void
change_undef (struct bfd_link_hash_entry * undef,
struct bfd_link_hash_entry * sym)
{
static bool gave_warning_message = false;

undef->type = bfd_link_hash_defined;
undef->u.def.value = sym->u.def.value;
undef->u.def.section = sym->u.def.section;

if (pe_enable_stdcall_fixup == -1)
{
einfo (_("%P: warning: resolving %s by linking to %s\n"),
undef->root.string, sym->root.string);

if (! gave_warning_message)
{
einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
gave_warning_message = true;
}
}

/* PR 19803: Make sure that the linked symbol is not garbage collected. */
lang_add_gc_name (sym->root.string);
}

static void
set_decoration (const char *undecorated_name,
struct bfd_link_hash_entry * decoration)
{
static bool gave_warning_message = false;
struct decoration_hash_entry *entry;

if (is_underscoring () && undecorated_name[0] == '_')
undecorated_name++;

entry = (struct decoration_hash_entry *)
bfd_hash_lookup (&(coff_hash_table (&link_info)->decoration_hash),
undecorated_name, true /* create */, false /* copy */);

if (entry->decorated_link != NULL && !gave_warning_message)
{
einfo (_("%P: warning: overwriting decorated name %s with %s\n"),
entry->decorated_link->root.string, undecorated_name);
gave_warning_message = true;
}

entry->decorated_link = decoration;
}

static void
pe_fixup_stdcalls (void)
{
struct bfd_link_hash_entry *undef, *sym;

if (pe_dll_extra_pe_debug)
printf ("%s\n", __func__);

for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
if (undef->type == bfd_link_hash_undefined)
{
const char * name = undef->root.string;
char * at;
int lead_at = (*name == '@');

if (lead_at)
at = strchr (name + 1, '@');
else
at = strchr (name, '@');

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 (name);

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

if (sym && sym->type == bfd_link_hash_defined)
change_undef (undef, sym);
}
else
{
/* The symbol is a cdecl symbol, so we look for stdcall
symbols - which means scanning the whole symbol table. */
pe_undef_found_sym = NULL;
bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
(char *) name);
if (pe_undef_found_sym)
{
change_undef (undef, pe_undef_found_sym);
set_decoration (undef->root.string, pe_undef_found_sym);
}
}
}
}

static bfd_vma
read_addend (arelent *rel, asection *s)
{
char buf[4];
bfd_vma addend = 0;

if (!bfd_get_section_contents (s->owner, s, buf, rel->address, sizeof (buf)))
einfo (_("%P: %H: cannot get section contents - auto-import exception\n"),
s->owner, s, rel->address);
else
addend = bfd_get_32 (s->owner, buf);
return addend;
}

static void
make_import_fixup (arelent *rel, asection *s, char *name, const char *symname)
{
struct bfd_symbol *sym = *rel->sym_ptr_ptr;
bfd_vma addend;

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

addend = read_addend (rel, s);

if (pe_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);
}

pe_create_import_fixup (rel, s, addend, name, symname);
}

static void
make_runtime_ref (void)
{
const char *rr = U ("_pei386_runtime_relocator");
struct bfd_link_hash_entry *h
= bfd_wrapped_link_hash_lookup (link_info.output_bfd, &link_info,
rr, true, false, true);
if (!h)
fatal (_("%P: bfd_link_hash_lookup failed: %E\n"));
else
{
if (h->type == bfd_link_hash_new)
{
h->type = bfd_link_hash_undefined;
h->u.undef.abfd = NULL;
if (h->u.undef.next == NULL && h != link_info.hash->undefs_tail)
bfd_link_add_undef (link_info.hash, h);
}
h->non_ir_ref_regular = true;
}
}

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_read (&b, 1, abfd);
if (status < 1)
{
break;
}

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

return true;
}

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

/* 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 == td->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 (td->build_id.sec->contents == NULL)
td->build_id.sec->contents = xmalloc (td->build_id.sec->size);
contents = td->build_id.sec->contents;

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

bfd_vma ib = td->pe_opthdr.ImageBase;

#ifdef PDB_H
if (pdb_name)
pdb_base_name = lbasename (pdb_name);
#endif

/* 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)
#ifdef PDB_H
+ (pdb_base_name ? strlen (pdb_base_name) : 0)
#endif
+ 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 entry. */
if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
return 0;

if (bfd_write (contents, sizeof (*ext), abfd) != sizeof (*ext))
return 0;

#ifdef PDB_H
if (pdb)
{
if (!create_pdb_file (abfd, pdb_name, build_id))
return 0;
}
#endif

/* 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,
pdb_base_name) == 0)
return 0;

/* Record the location of the debug directory in the data directory. */
td->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
= asec->vma - ib + link_order->offset;
td->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 *td = pe_data (link_info.output_bfd);
td->build_id.after_write_object_contents = &write_build_id;
td->build_id.style = emit_build_id;
td->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, followed by
PdbFileName if relevant. */
s->size = (sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
+ sizeof (CV_INFO_PDB70) + 1);

#ifdef PDB_H
if (pdb_name)
s->size += strlen (lbasename (pdb_name));
#endif
return true;
}

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

static void
gld${EMULATION_NAME}_before_plugin_all_symbols_read (void)
{
#ifdef DLL_SUPPORT
if (link_info.lto_plugin_active
&& link_info.pei386_auto_import)
make_runtime_ref ();
#endif
}

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

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

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

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

#ifdef PDB_H
if (pdb && !pdb_name)
{
const char *base = lbasename (bfd_get_filename (link_info.output_bfd));
size_t len = strlen (base);
static const char suffix[] = ".pdb";

while (len > 0 && base[len] != '.')
{
len--;
}

if (len == 0)
len = strlen (base);

pdb_name = xmalloc (len + sizeof (suffix));
memcpy (pdb_name, base, len);
memcpy (pdb_name + len, suffix, sizeof (suffix));
}
#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
|| !obj_pe (link_info.output_bfd))
fatal (_("%P: cannot perform PE operations on non PE output file '%pB'\n"),
link_info.output_bfd);

pe_data (link_info.output_bfd)->pe_opthdr = pe;
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 (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none)
{
if (bfd_link_relocatable (&link_info))
pe_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)
{
pe_use_coff_long_section_names = 1;
break;
}
}
}
}

pe_output_file_set_long_section_names (link_info.output_bfd);

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

if (link_info.pei386_auto_import) /* -1=warn or 1=enable */
pe_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 (pe_enable_stdcall_fixup) /* -1=warn or 1=enable */
pe_fixup_stdcalls ();

#if defined (TARGET_IS_i386pe) \
|| defined (TARGET_IS_armpe) \
|| defined (TARGET_IS_arm_wince_pe)
if (!bfd_link_relocatable (&link_info))
pe_dll_build_sections (link_info.output_bfd, &link_info);
#else
if (bfd_link_pic (&link_info))
pe_dll_build_sections (link_info.output_bfd, &link_info);
else
pe_exe_build_sections (link_info.output_bfd, &link_info);
#endif
#endif /* DLL_SUPPORT */

#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL)
{
/* The arm backend needs special fields in the output hash structure.
These will only be created if the output format is an arm format,
hence we do not support linking and changing output formats at the
same time. Use a link followed by objcopy to change output formats. */
fatal (_("%P: error: cannot change output format "
"whilst linking %s binaries\n"), "ARM");
return;
}
{
/* Find a BFD that can hold the interworking stubs. */
LANG_FOR_EACH_INPUT_STATEMENT (is)
{
if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
break;
}
}
#endif

{
/* 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))
{
fatal (_("%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.
The head and sentinels are regular COFF object files,
while the thunks are special ILF files that get synthesized
by bfd into COFF object files.

As Microsoft import libraries can be for a module with
almost any file name (*.dll, *.exe, etc), we can't easily
know which archive members to inspect.

Inspect all members, except ones named *.o or *.obj (which
is the case both for regular static libraries or for GNU
style import libraries). Archive members with file names other
than *.o or *.obj, that do contain .idata sections, are
considered to be Microsoft style import objects, and are
renamed accordingly.

If this heuristic is wrong and we apply this on archive members
that already have unique names, it shouldn't make any difference
as we only append a suffix on the names. */
pnt = strrchr (bfd_get_filename (is->the_bfd), '.');

if (pnt != NULL && (fileext_cmp (pnt + 1, "o") != 0 &&
fileext_cmp (pnt + 1, "obj") != 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 not named .o or .obj, 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;
}
}
}
}

{
/* The following chunk of code tries to identify jump stubs in
import libraries which are dead code and eliminates them
from the final link. For each exported symbol <sym>, there
is a object file in the import library with a .text section
and several .idata\$* sections. The .text section contains the
symbol definition for <sym> which is a jump stub of the form
jmp *__imp_<sym>. The .idata\$5 contains the symbol definition
for __imp_<sym> which is the address of the slot for <sym> in
the import address table. When a symbol is imported explicitly
using __declspec(dllimport) declaration, the compiler generates
a reference to __imp_<sym> which directly resolves to the
symbol in .idata\$5, in which case the jump stub code is not
needed. The following code tries to identify jump stub sections
in import libraries which are not referred to by anyone and
marks them for exclusion from the final link. */
LANG_FOR_EACH_INPUT_STATEMENT (is)
{
if (is->the_bfd->my_archive)
{
int is_imp = 0;
asection *sec, *stub_sec = NULL;

/* See if this is an import library thunk. */
for (sec = is->the_bfd->sections; sec; sec = sec->next)
{
if (strncmp (sec->name, ".idata\$", 7) == 0)
is_imp = 1;
/* The section containing the jmp stub has code
and has a reloc. */
if ((sec->flags & SEC_CODE) && sec->reloc_count)
stub_sec = sec;
}

if (is_imp && stub_sec)
{
asymbol **symbols;
long nsyms, src_count;
struct bfd_link_hash_entry * blhe;

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

for (src_count = 0; src_count < nsyms; src_count++)
{
if (symbols[src_count]->section->id == stub_sec->id)
{
/* This symbol belongs to the section containing
the stub. */
blhe = bfd_link_hash_lookup (link_info.hash,
symbols[src_count]->name,
false, false, true);
/* If the symbol in the stub section has no other
undefined references, exclude the stub section
from the final link. */
if (blhe != NULL
&& blhe->type == bfd_link_hash_defined
&& blhe->u.undef.next == NULL
&& blhe != link_info.hash->undefs_tail)
stub_sec->flags |= SEC_EXCLUDE;
}
}
}
}
}
}
}

static void
gld${EMULATION_NAME}_before_allocation (void)
{
#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
/* FIXME: we should be able to set the size of the interworking stub
section.

Here we rummage through the found bfds to collect glue
information. FIXME: should this be based on a command line
option? [email protected]. */
{
LANG_FOR_EACH_INPUT_STATEMENT (is)
{
if (! bfd_arm_process_before_allocation
(is->the_bfd, & link_info, support_old_code))
{
/* xgettext:c-format */
einfo (_("%P: errors encountered processing file %s for interworking\n"),
is->filename);
}
}
}

/* We have seen it all. Allocate it, and carry on. */
bfd_arm_allocate_interworking_sections (& link_info);
#endif /* TARGET_IS_armpe || TARGET_IS_arm_wince_pe */

before_allocation_default ();
}

#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;

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)
{
pe_def_file = def_file_parse (entry->filename, pe_def_file);

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

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

buf = xmalloc (buflen);

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

sprintf (buf, "%s%s", U (""),
pe_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)
fatal (_("%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, pe_def_file); */
if (pe_def_file->is_dll == 1)
link_info.type = type_dll;

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

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

static bool
gld${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
{
#ifdef DLL_SUPPORT
#ifdef TARGET_IS_i386pe
pe_dll_id_target ("pei-i386");
#endif
#ifdef TARGET_IS_shpe
pe_dll_id_target ("pei-shl");
#endif
#ifdef TARGET_IS_armpe
pe_dll_id_target ("pei-arm-little");
#endif
#ifdef TARGET_IS_arm_wince_pe
pe_dll_id_target ("pei-arm-wince-little");
#endif
if (pe_bfd_is_dll (entry->the_bfd))
return pe_implied_import_dll (entry->filename);
#endif
return false;
}

static void
gld${EMULATION_NAME}_finish (void)
{
/* Support the object-only output. */
if (config.emit_gnu_object_only)
orphan_init_done = false;

#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
struct bfd_link_hash_entry * h;

if (thumb_entry_symbol != NULL)
{
h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
false, false, true);

if (h != (struct bfd_link_hash_entry *) NULL
&& (h->type == bfd_link_hash_defined
|| h->type == bfd_link_hash_defweak)
&& h->u.def.section->output_section != NULL)
{
static char buffer[32];
bfd_vma val;

/* Special procesing is required for a Thumb entry symbol. The
bottom bit of its address must be set. */
val = (h->u.def.value
+ bfd_section_vma (h->u.def.section->output_section)
+ h->u.def.section->output_offset);

val |= 1;

/* Now convert this value into a string and store it in entry_symbol
where the lang_finish() function will pick it up. */
sprintf (buffer, "0x%" PRIx64, (uint64_t) val);

if (entry_symbol.name != NULL && entry_from_cmdline)
einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
thumb_entry_symbol, entry_symbol.name);
entry_symbol.name = buffer;
}
else
einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
}
#endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) */

finish_default ();

#ifdef DLL_SUPPORT
if (bfd_link_pic (&link_info)
#if !defined(TARGET_IS_shpe)
|| pe_dll_enable_reloc_section
|| (!bfd_link_relocatable (&link_info)
&& pe_def_file->num_exports != 0)
#endif
)
{
pe_dll_fill_sections (link_info.output_bfd, &link_info);
if (command_line.out_implib_filename
&& (pe_def_file->num_exports != 0
|| bfd_link_pic (&link_info)))
pe_dll_generate_implib (pe_def_file, command_line.out_implib_filename,
&link_info);
}
#if defined(TARGET_IS_shpe)
/* ARM doesn't need relocs. */
else
{
pe_exe_fill_sections (link_info.output_bfd, &link_info);
}
#endif

if (pe_out_def_filename)
pe_dll_generate_def_file (pe_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;
}
}
}

/* 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 orig_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 }
};
static struct orphan_save hold[ARRAY_SIZE (orig_hold)];
enum orphan_save_index
{
orphan_text = 0,
orphan_idata,
orphan_rodata,
orphan_data,
orphan_bss
};
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, *horig;
for (ho = hold, horig = orig_hold;
ho < hold + ARRAY_SIZE (hold);
++ho, ++horig)
{
*ho = *horig;
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 = true;
}

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
+ (pe_dll_search_prefix
? strlen (pe_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);

base_string = stpcpy (full_string, search->name);
*base_string++ = '/';

for (i = 0; libname_fmt[i].format; i++)
{
#ifdef DLL_SUPPORT
if (libname_fmt[i].use_prefix)
{
if (!pe_dll_search_prefix)
continue;
sprintf (base_string, libname_fmt[i].format, pe_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");
}

static struct bfd_link_hash_entry *
gld${EMULATION_NAME}_find_alt_start_symbol
(struct bfd_sym_chain *entry)
{
#if defined (TARGET_IS_i386pe)
bool entry_has_stdcall_suffix;
#endif
struct bfd_link_hash_entry *h;
size_t entry_name_len;
char *symbol_name;
const char *prefix;
const char *suffix;

entry_name_len = strlen (entry->name);

if (is_underscoring ())
prefix = "_";
else
prefix = "";

#if defined (TARGET_IS_i386pe)
if ((entry_name_len > 2 && entry->name[entry_name_len-2] == '@' && ISDIGIT (entry->name[entry_name_len-1]))
|| (entry_name_len > 3 && entry->name[entry_name_len-3] == '@' && ISDIGIT (entry->name[entry_name_len-2]) && ISDIGIT (entry->name[entry_name_len-1]))
|| (entry_name_len > 4 && entry->name[entry_name_len-4] == '@' && ISDIGIT (entry->name[entry_name_len-3]) && ISDIGIT (entry->name[entry_name_len-2]) && ISDIGIT (entry->name[entry_name_len-1])))
entry_has_stdcall_suffix = true;
else
entry_has_stdcall_suffix = false;

if (!entry_has_stdcall_suffix && (bfd_link_dll (&link_info) || dll))
suffix = "@12";
else if (!entry_has_stdcall_suffix && pe_subsystem == 1 /* NT kernel driver */)
suffix = "@8";
else
#endif
suffix = "";

if (*prefix == '\0' && *suffix == '\0')
return NULL;

symbol_name = xmalloc (entry_name_len + 5);
strcpy (symbol_name, prefix);
strcat (symbol_name, entry->name);
strcat (symbol_name, suffix);

h = bfd_link_hash_lookup (link_info.hash, symbol_name, false, false, true);
free (symbol_name);
return h;
}

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 ${srcdir}/emultempl/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 && (MERGE_RDATA_V2 || 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 "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
fragment <<EOF
else if (link_info.pei386_auto_import == 1
&& (MERGE_RDATA_V2 || link_info.pei386_runtime_pseudo_reloc != 2))
return "ldscripts/${EMULATION_NAME}.xa";
EOF
fi
fragment <<EOF
else
return "ldscripts/${EMULATION_NAME}.x";
}
EOF
fi

LDEMUL_AFTER_PARSE=gld${EMULATION_NAME}_after_parse
LDEMUL_BEFORE_PLUGIN_ALL_SYMBOLS_READ=gld${EMULATION_NAME}_before_plugin_all_symbols_read
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
LDEMUL_FIND_START_SYMBOL=gld${EMULATION_NAME}_find_alt_start_symbol

source_em ${srcdir}/emultempl/emulation.em