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pe.em
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pe.em
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# 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
rm -f e${EMULATION_NAME}.c
(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
fragment <<EOF
/* Copyright (C) 1995-2020 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_${EMULATION_NAME}
#include "sysdep.h"
#include "bfd.h"
#include "bfdlink.h"
#include "ctf-api.h"
#include "getopt.h"
#include "libiberty.h"
#include "filenames.h"
#include "ld.h"
#include "ldmain.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldfile.h"
#include "ldemul.h"
#include <ldgram.h>
#include "ldlex.h"
#include "ldmisc.h"
#include "ldctor.h"
#include "ldbuildid.h"
#include "coff/internal.h"
/* FIXME: See bfd/peXXigen.c for why we include an architecture specific
header in generic PE code. */
#include "coff/i386.h"
#include "coff/pe.h"
/* FIXME: These are BFD internal header files, and we should not be
using it here. */
#include "../bfd/libcoff.h"
#include "../bfd/libpei.h"
#if defined(TARGET_IS_armpe) \
|| defined(TARGET_IS_arm_wince_pe)
#define bfd_arm_allocate_interworking_sections \
bfd_${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
#if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
#define PE_DEF_SUBSYSTEM 3
#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) || defined(TARGET_IS_arm_wince_pe)
#define PE_DEF_SECTION_ALIGNMENT 0x00001000
#define PE_DEF_SUBSYSTEM 9
#else
#define PE_DEF_SECTION_ALIGNMENT 0x00000400
#define PE_DEF_SUBSYSTEM 2
#endif
#define PE_DEF_FILE_ALIGNMENT 0x00000200
#endif
static struct internal_extra_pe_aouthdr pe;
static int dll;
static int pe_subsystem = ${SUBSYSTEM};
static flagword real_flags = 0;
static int support_old_code = 0;
static char * thumb_entry_symbol = NULL;
static lang_assignment_statement_type *image_base_statement = 0;
static unsigned short pe_dll_characteristics = 0;
static bfd_boolean insert_timestamp = TRUE;
static const char *emit_build_id;
#ifdef DLL_SUPPORT
static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
static char *pe_out_def_filename = NULL;
static int pe_enable_auto_image_base = 0;
static unsigned long pe_auto_image_base = 0x61500000;
static char *pe_dll_search_prefix = NULL;
#endif
extern const char *output_filename;
static int is_underscoring (void)
{
int u = 0;
if (pe_leading_underscore != -1)
return pe_leading_underscore;
if (!bfd_get_target_info ("${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. */
/* Used for setting flags in the PE header. */
#define OPTION_BASE_FILE (300 + 1)
#define OPTION_DLL (OPTION_BASE_FILE + 1)
#define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
#define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
#define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
#define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
#define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
#define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
#define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
#define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
#define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
#define OPTION_SUBSYSTEM (OPTION_STACK + 1)
#define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
#define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
#define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
#define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
#define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
#define OPTION_EXCLUDE_ALL_SYMBOLS (OPTION_EXCLUDE_SYMBOLS + 1)
#define OPTION_KILL_ATS (OPTION_EXCLUDE_ALL_SYMBOLS + 1)
#define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
#define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
#define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
#define OPTION_THUMB_ENTRY (OPTION_DISABLE_STDCALL_FIXUP + 1)
#define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
#define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
#define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
#define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
#define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
#define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
#define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
#define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
#define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \
(OPTION_EXCLUDE_LIBS + 1)
#define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \
(OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1)
#define OPTION_LARGE_ADDRESS_AWARE (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
#define OPTION_DISABLE_LARGE_ADDRESS_AWARE \
(OPTION_LARGE_ADDRESS_AWARE + 1)
#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 \
(OPTION_DISABLE_LARGE_ADDRESS_AWARE + 1)
#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 \
(OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 + 1)
#define OPTION_EXCLUDE_MODULES_FOR_IMPLIB \
(OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 + 1)
#define OPTION_USE_NUL_PREFIXED_IMPORT_TABLES \
(OPTION_EXCLUDE_MODULES_FOR_IMPLIB + 1)
#define OPTION_NO_LEADING_UNDERSCORE (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES + 1)
#define OPTION_LEADING_UNDERSCORE (OPTION_NO_LEADING_UNDERSCORE + 1)
#define OPTION_ENABLE_LONG_SECTION_NAMES \
(OPTION_LEADING_UNDERSCORE + 1)
#define OPTION_DISABLE_LONG_SECTION_NAMES \
(OPTION_ENABLE_LONG_SECTION_NAMES + 1)
/* DLLCharacteristics flags. */
#define OPTION_DYNAMIC_BASE (OPTION_DISABLE_LONG_SECTION_NAMES + 1)
#define OPTION_FORCE_INTEGRITY (OPTION_DYNAMIC_BASE + 1)
#define OPTION_NX_COMPAT (OPTION_FORCE_INTEGRITY + 1)
#define OPTION_NO_ISOLATION (OPTION_NX_COMPAT + 1)
#define OPTION_NO_SEH (OPTION_NO_ISOLATION + 1)
#define OPTION_NO_BIND (OPTION_NO_SEH + 1)
#define OPTION_WDM_DRIVER (OPTION_NO_BIND + 1)
#define OPTION_TERMINAL_SERVER_AWARE (OPTION_WDM_DRIVER + 1)
/* Determinism. */
#define OPTION_INSERT_TIMESTAMP (OPTION_TERMINAL_SERVER_AWARE + 1)
#define OPTION_NO_INSERT_TIMESTAMP (OPTION_INSERT_TIMESTAMP + 1)
#define OPTION_BUILD_ID (OPTION_NO_INSERT_TIMESTAMP + 1)
#define OPTION_ENABLE_RELOC_SECTION (OPTION_BUILD_ID + 1)
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},
{"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},
{"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},
{"build-id", optional_argument, NULL, OPTION_BUILD_ID},
{"enable-reloc-section", no_argument, NULL, OPTION_ENABLE_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. */
bfd_boolean 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__", ${SUBSYSTEM}, FALSE),
D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
{ NULL, 0, 0, NULL, 0 , FALSE}
};
static void
gld_${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, _(" --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, _(" --forceinteg Code integrity checks are enforced\n"));
fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\
be called in this image\n"));
fprintf (file, _(" --no-bind Do not bind this image\n"));
fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
}
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_pic (&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);
}
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)
{
einfo (_("%F%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)
einfo (_("%F%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)
einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg);
}
#define DEFAULT_BUILD_ID_STYLE "md5"
static bfd_boolean
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)
einfo (_("%F%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_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_NO_ISOLATION:
pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
break;
case OPTION_NO_SEH:
pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
break;
case OPTION_NO_BIND:
pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
break;
case OPTION_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_BUILD_ID:
if (emit_build_id != NULL)
{
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_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 ();