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# This shell script emits a C file. -*- C -*-# It does some substitutions.test -z "${ENTRY}" && ENTRY="_mainCRTStartup"if [ -z "$MACHINE" ]; thenOUTPUT_ARCH=${ARCH}elseOUTPUT_ARCH=${ARCH}:${MACHINE}firm -f e${EMULATION_NAME}.c(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)fragment <<EOF/* Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.Written by Kai Tietz, OneVision Software GmbH&CoKg.This file is part of the GNU Binutils.This program is free software; you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation; either version 3 of the License, or(at your option) any later version.This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with this program; if not, write to the Free SoftwareFoundation, Inc., 51 Franklin Street - Fifth Floor, Boston,MA 02110-1301, USA. *//* For WINDOWS_XP64 and higher *//* Based on pe.em, but modified for 64 bit support. */#define TARGET_IS_${EMULATION_NAME}#define COFF_IMAGE_WITH_PE#define COFF_WITH_PE#define COFF_WITH_pex64#include "sysdep.h"#include "bfd.h"#include "bfdlink.h"#include "getopt.h"#include "libiberty.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 "coff/internal.h"/* FIXME: See bfd/peXXigen.c for why we include an architecture specificheader in generic PE code. */#include "coff/x86_64.h"#include "coff/pe.h"/* FIXME: This is a BFD internal header file, and we should not beusing it here. */#include "../bfd/libcoff.h"#undef AOUTSZ#define AOUTSZ PEPAOUTSZ#define PEAOUTHDR PEPAOUTHDR#include "deffile.h"#include "pep-dll.h"#include "safe-ctype.h"/* Permit the emulation parameters to override the default sectionalignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makesit seem that include/coff/internal.h should not definePE_DEF_SECTION_ALIGNMENT. */#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}#undef PE_DEF_SECTION_ALIGNMENT#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}#endif#ifdef TARGET_IS_i386pep#define DLL_SUPPORT#endif#if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)#define PE_DEF_SUBSYSTEM 3#else#undef NT_EXE_IMAGE_BASE#define NT_EXE_IMAGE_BASE 0x00010000#undef PE_DEF_SECTION_ALIGNMENT#define PE_DEF_SUBSYSTEM 2#undef PE_DEF_FILE_ALIGNMENT#define PE_DEF_FILE_ALIGNMENT 0x00000200#define PE_DEF_SECTION_ALIGNMENT 0x00000400#endifstatic struct internal_extra_pe_aouthdr pep;static int dll;static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;static int support_old_code = 0;static lang_assignment_statement_type *image_base_statement = 0;static unsigned short pe_dll_characteristics = 0;#ifdef DLL_SUPPORTstatic int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */static char * pep_out_def_filename = NULL;static char * pep_implib_filename = NULL;static int pep_enable_auto_image_base = 0;static char * pep_dll_search_prefix = NULL;#endifextern const char *output_filename;static voidgld_${EMULATION_NAME}_before_parse (void){ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);output_filename = "${EXECUTABLE_NAME:-a.exe}";#ifdef DLL_SUPPORTconfig.dynamic_link = TRUE;config.has_shared = 1;link_info.pei386_auto_import = -1;link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */#if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)lang_default_entry ("_WinMainCRTStartup");#elselang_default_entry ("${ENTRY}");#endif#endif}/* PE format extra command line options. *//* Used for setting flags in the PE header. */enum options{OPTION_BASE_FILE = 300 + 1,OPTION_DLL,OPTION_FILE_ALIGNMENT,OPTION_IMAGE_BASE,OPTION_MAJOR_IMAGE_VERSION,OPTION_MAJOR_OS_VERSION,OPTION_MAJOR_SUBSYSTEM_VERSION,OPTION_MINOR_IMAGE_VERSION,OPTION_MINOR_OS_VERSION,OPTION_MINOR_SUBSYSTEM_VERSION,OPTION_SECTION_ALIGNMENT,OPTION_STACK,OPTION_SUBSYSTEM,OPTION_HEAP,OPTION_SUPPORT_OLD_CODE,OPTION_OUT_DEF,OPTION_EXPORT_ALL,OPTION_EXCLUDE_SYMBOLS,OPTION_KILL_ATS,OPTION_STDCALL_ALIASES,OPTION_ENABLE_STDCALL_FIXUP,OPTION_DISABLE_STDCALL_FIXUP,OPTION_IMPLIB_FILENAME,OPTION_WARN_DUPLICATE_EXPORTS,OPTION_IMP_COMPAT,OPTION_ENABLE_AUTO_IMAGE_BASE,OPTION_DISABLE_AUTO_IMAGE_BASE,OPTION_DLL_SEARCH_PREFIX,OPTION_NO_DEFAULT_EXCLUDES,OPTION_DLL_ENABLE_AUTO_IMPORT,OPTION_DLL_DISABLE_AUTO_IMPORT,OPTION_ENABLE_EXTRA_PE_DEBUG,OPTION_EXCLUDE_LIBS,OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1,OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,OPTION_EXCLUDE_MODULES_FOR_IMPLIB,OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,OPTION_ENABLE_LONG_SECTION_NAMES,OPTION_DISABLE_LONG_SECTION_NAMES,OPTION_DYNAMIC_BASE,OPTION_FORCE_INTEGRITY,OPTION_NX_COMPAT,OPTION_NO_ISOLATION,OPTION_NO_SEH,OPTION_NO_BIND,OPTION_WDM_DRIVER,OPTION_TERMINAL_SERVER_AWARE};static voidgld${EMULATION_NAME}_add_options(int ns ATTRIBUTE_UNUSED,char **shortopts ATTRIBUTE_UNUSED,int nl,struct option **longopts,int nrl ATTRIBUTE_UNUSED,struct option **really_longopts ATTRIBUTE_UNUSED){static const struct option xtra_long[] ={/* PE options */{"base-file", required_argument, NULL, OPTION_BASE_FILE},{"dll", no_argument, NULL, OPTION_DLL},{"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},{"heap", required_argument, NULL, OPTION_HEAP},{"image-base", required_argument, NULL, OPTION_IMAGE_BASE},{"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},{"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},{"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},{"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},{"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},{"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},{"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},{"stack", required_argument, NULL, OPTION_STACK},{"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},{"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},{"use-nul-prefixed-import-tables", no_argument, NULL,OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},#ifdef DLL_SUPPORT/* getopt allows abbreviations, so we do this to stop itfrom 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-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},{"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},{"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},/* getopt() allows abbreviations, so we do this to stop it fromtreating -c as an abbreviation for these --compat-implib. */{"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},{"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},{"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},{"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},{"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},{"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},{"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},{"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},{"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},{"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},{"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},{"enable-runtime-pseudo-reloc-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{"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},{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 stackparameters which may be input from the command line. */typedef struct{void *ptr;int size;bfd_vma value;char *symbol;int inited;} definfo;#define D(field,symbol,def) {&pep.field,sizeof(pep.field), def, symbol,0}static definfo init[] ={/* imagebase must be first */#define IMAGEBASEOFF 0D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),#define DLLOFF 1{&dll, sizeof(dll), 0, "__dll__", 0},#define MSIMAGEBASEOFF 2D(ImageBase,"___ImageBase", NT_EXE_IMAGE_BASE),D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),D(MajorOperatingSystemVersion,"__major_os_version__", 4),D(MinorOperatingSystemVersion,"__minor_os_version__", 0),D(MajorImageVersion,"__major_image_version__", 0),D(MinorImageVersion,"__minor_image_version__", 0),D(MajorSubsystemVersion,"__major_subsystem_version__", 5),D(MinorSubsystemVersion,"__minor_subsystem_version__", 2),D(Subsystem,"__subsystem__", ${SUBSYSTEM}),D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),D(LoaderFlags,"__loader_flags__", 0x0),D(DllCharacteristics, "__dll_characteristics__", 0x0),{ NULL, 0, 0, NULL, 0 }};static voidgld_${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"));#ifdef DLL_SUPPORTfprintf (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-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, _(" --out-implib <file> Generate import library\n"));fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\create __imp_<SYMBOL> as well.\n"));fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\unless user specifies one\n"));fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\an importlib, use <string><basename>.dll\n\in preference to lib<basename>.dll \n"));fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\__imp_sym for DATA references\n"));fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\adding pseudo-relocations resolved at\n\runtime.\n"));fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\auto-imported DATA.\n"));fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\or linking to DLLs (esp. auto-import)\n"));fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\executable image files\n"));fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\in object files\n"));fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\address space layout randomization (ASLR)\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"));#endif}static voidset_pep_name (char *name, bfd_vma val){int i;/* Find the name and set it. */for (i = 0; init[i].ptr; i++){if (strcmp (name, init[i].symbol) == 0){init[i].value = val;init[i].inited = 1;if (strcmp (name,"__image_base__") == 0)set_pep_name ("___ImageBase", val);return;}}abort ();}static voidset_pep_subsystem (void){const char *sver;const char *entry;const char *initial_symbol_char;char *end;int len;int i;int subsystem;unsigned long temp_subsystem;static const struct{const char *name;const int value;const char *entry;}v[] ={{ "native", 1, "NtProcessStartup" },{ "windows", 2, "WinMainCRTStartup" },{ "console", 3, "mainCRTStartup" },{ "posix", 7, "__PosixProcessStartup"},{ "wince", 9, "_WinMainCRTStartup" },{ "xbox", 14, "mainCRTStartup" },{ NULL, 0, NULL }};/* Entry point name for arbitrary subsystem numbers. */static const char default_entry[] = "mainCRTStartup";/* Check for the presence of a version number. */sver = strchr (optarg, ':');if (sver == NULL)len = strlen (optarg);else{len = sver - optarg;set_pep_name ("__major_subsystem_version__",strtoul (sver + 1, &end, 0));if (*end == '.')set_pep_name ("__minor_subsystem_version__",strtoul (end + 1, &end, 0));if (*end != '\0')einfo (_("%P: warning: bad version number in -subsystem option\n"));}/* Check for numeric subsystem. */temp_subsystem = strtoul (optarg, & end, 0);if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536)){/* Search list for a numeric match to use its entry point. */for (i = 0; v[i].name; i++)if (v[i].value == (int) temp_subsystem)break;/* If no match, use the default. */if (v[i].name != NULL)entry = v[i].entry;elseentry = default_entry;/* Use this subsystem. */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 (_("%P%F: invalid subsystem type %s\n"), optarg);return;}entry = v[i].entry;subsystem = v[i].value;}set_pep_name ("__subsystem__", subsystem);initial_symbol_char = ${INITIAL_SYMBOL_CHAR};if (*initial_symbol_char != '\0'){char *alc_entry;/* lang_default_entry expects its argument to be permanentlyallocated, so we don't free this string. */alc_entry = xmalloc (strlen (initial_symbol_char)+ strlen (entry)+ 1);strcpy (alc_entry, initial_symbol_char);strcat (alc_entry, entry);entry = alc_entry;}lang_default_entry (entry);return;}static voidset_pep_value (char *name){char *end;set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));if (end == optarg)einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);optarg = end;}static voidset_pep_stack_heap (char *resname, char *comname){set_pep_value (resname);if (*optarg == ','){optarg++;set_pep_value (comname);}else if (*optarg)einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);}static bfd_booleangld${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){/* xgettext:c-format */fprintf (stderr, _("%s: Can't open base file %s\n"),program_name, optarg);xexit (1);}break;/* PE options. */case OPTION_HEAP:set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");break;case OPTION_STACK:set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");break;case OPTION_SUBSYSTEM:set_pep_subsystem ();break;case OPTION_MAJOR_OS_VERSION:set_pep_value ("__major_os_version__");break;case OPTION_MINOR_OS_VERSION:set_pep_value ("__minor_os_version__");break;case OPTION_MAJOR_SUBSYSTEM_VERSION:set_pep_value ("__major_subsystem_version__");break;case OPTION_MINOR_SUBSYSTEM_VERSION:set_pep_value ("__minor_subsystem_version__");break;case OPTION_MAJOR_IMAGE_VERSION:set_pep_value ("__major_image_version__");break;case OPTION_MINOR_IMAGE_VERSION:set_pep_value ("__minor_image_version__");break;case OPTION_FILE_ALIGNMENT:set_pep_value ("__file_alignment__");break;case OPTION_SECTION_ALIGNMENT:set_pep_value ("__section_alignment__");break;case OPTION_DLL:set_pep_name ("__dll__", 1);break;case OPTION_IMAGE_BASE:set_pep_value ("__image_base__");break;case OPTION_SUPPORT_OLD_CODE:support_old_code = 1;break;case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:pep_use_nul_prefixed_import_tables = TRUE;break;#ifdef DLL_SUPPORTcase OPTION_OUT_DEF:pep_out_def_filename = xstrdup (optarg);break;case OPTION_EXPORT_ALL:pep_dll_export_everything = 1;break;case OPTION_EXCLUDE_SYMBOLS:pep_dll_add_excludes (optarg, EXCLUDESYMS);break;case OPTION_EXCLUDE_LIBS:pep_dll_add_excludes (optarg, EXCLUDELIBS);break;case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);break;case OPTION_KILL_ATS:pep_dll_kill_ats = 1;break;case OPTION_STDCALL_ALIASES:pep_dll_stdcall_aliases = 1;break;case OPTION_ENABLE_STDCALL_FIXUP:pep_enable_stdcall_fixup = 1;break;case OPTION_DISABLE_STDCALL_FIXUP:pep_enable_stdcall_fixup = 0;break;case OPTION_IMPLIB_FILENAME:pep_implib_filename = xstrdup (optarg);break;case OPTION_WARN_DUPLICATE_EXPORTS:pep_dll_warn_dup_exports = 1;break;case OPTION_IMP_COMPAT:pep_dll_compat_implib = 1;break;case OPTION_ENABLE_AUTO_IMAGE_BASE:pep_enable_auto_image_base = 1;break;case OPTION_DISABLE_AUTO_IMAGE_BASE:pep_enable_auto_image_base = 0;break;case OPTION_DLL_SEARCH_PREFIX:pep_dll_search_prefix = xstrdup (optarg);break;case OPTION_NO_DEFAULT_EXCLUDES:pep_dll_do_default_excludes = 0;break;case OPTION_DLL_ENABLE_AUTO_IMPORT:link_info.pei386_auto_import = 1;break;case OPTION_DLL_DISABLE_AUTO_IMPORT:link_info.pei386_auto_import = 0;break;case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:link_info.pei386_runtime_pseudo_reloc = 2;break;case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:link_info.pei386_runtime_pseudo_reloc = 0;break;case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_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_ENABLE_EXTRA_PE_DEBUG:pep_dll_extra_pe_debug = 1;break;#endifcase OPTION_ENABLE_LONG_SECTION_NAMES:pep_use_coff_long_section_names = 1;break;case OPTION_DISABLE_LONG_SECTION_NAMES:pep_use_coff_long_section_names = 0;break;/* Get DLLCharacteristics bits */case OPTION_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_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;}/* Set DLLCharacteristics bits */set_pep_name ("__dll_characteristics__", pe_dll_characteristics);return TRUE;}#ifdef DLL_SUPPORTstatic unsigned longstrhash (const char *str){const unsigned char *s;unsigned long hash;unsigned int c;unsigned int len;hash = 0;len = 0;s = (const unsigned char *) str;while ((c = *s++) != '\0'){hash += c + (c << 17);hash ^= hash >> 2;++len;}hash += len + (len << 17);hash ^= hash >> 2;return hash;}/* Use the output file to create a image base for relocatable DLLs. */static bfd_vmacompute_dll_image_base (const char *ofile){bfd_vma hash = (bfd_vma) strhash (ofile);return 0x61300000 + ((hash << 16) & 0x0FFC0000);}#endif/* Assign values to the special symbols before the linker script isread. */static voidgld_${EMULATION_NAME}_set_symbols (void){/* Run through and invent symbols for all thenames and insert the defaults. */int j;if (!init[IMAGEBASEOFF].inited){if (link_info.relocatable)init[IMAGEBASEOFF].value = 0;else if (init[DLLOFF].value || (link_info.shared && !link_info.pie)){#ifdef DLL_SUPPORTinit[IMAGEBASEOFF].value = (pep_enable_auto_image_base? compute_dll_image_base (output_filename): NT_DLL_IMAGE_BASE);#elseinit[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;#endif}elseinit[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;}/* Don't do any symbol assignments if this is a relocatable link. */if (link_info.relocatable)return;/* Glue the assignments into the abs section. */push_stat_ptr (&abs_output_section->children);for (j = 0; init[j].ptr; j++){bfd_vma val = init[j].value;lang_assignment_statement_type *rv;rv = lang_add_assignment (exp_assop ('=', init[j].symbol,exp_intop (val)));if (init[j].size == sizeof (short))*(short *) init[j].ptr = (short) val;else if (init[j].size == sizeof (int))*(int *) init[j].ptr = (int) val;else if (init[j].size == sizeof (long))*(long *) init[j].ptr = (long) val;/* This might be a long long or other special type. */else if (init[j].size == sizeof (bfd_vma))*(bfd_vma *) init[j].ptr = val;else abort ();if (j == IMAGEBASEOFF)image_base_statement = rv;}/* Restore the pointer. */pop_stat_ptr ();if (pep.FileAlignment > pep.SectionAlignment){einfo (_("%P: warning, file alignment > section alignment.\n"));}}/* This is called after the linker script and the command line optionshave been read. */static voidgld_${EMULATION_NAME}_after_parse (void){/* PR ld/6744: Warn the user if they have used an ELF-onlyoption 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"));after_parse_default ();}/* pep-dll.c directly accesses pep_data_import_dll,so it must be defined outside of #ifdef DLL_SUPPORT.Note - this variable is deliberately not initialised.This allows it to be treated as a common varaible, and onlyexist in one incarnation in a multiple target enabled linker. */char * pep_data_import_dll;#ifdef DLL_SUPPORTstatic struct bfd_link_hash_entry *pep_undef_found_sym;static bfd_booleanpep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf){int sl;char *string = inf;sl = strlen (string);if (h->type == bfd_link_hash_defined&& strncmp (h->root.string, string, sl) == 0&& h->root.string[sl] == '@'){pep_undef_found_sym = h;return FALSE;}return TRUE;}static voidpep_fixup_stdcalls (void){static int gave_warning_message = 0;struct bfd_link_hash_entry *undef, *sym;if (pep_dll_extra_pe_debug)printf ("%s\n", __FUNCTION__);for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)if (undef->type == bfd_link_hash_undefined){char* at = strchr (undef->root.string, '@');int lead_at = (*undef->root.string == '@');/* For now, don't try to fixup fastcall symbols. */if (at && !lead_at){/* The symbol is a stdcall symbol, so let's look for acdecl symbol with the same name and resolve to that. */char *cname = xstrdup (undef->root.string /* + lead_at */);at = strchr (cname, '@');*at = 0;sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);if (sym && sym->type == bfd_link_hash_defined){undef->type = bfd_link_hash_defined;undef->u.def.value = sym->u.def.value;undef->u.def.section = sym->u.def.section;if (pep_enable_stdcall_fixup == -1){einfo (_("Warning: resolving %s by linking to %s\n"),undef->root.string, cname);if (! gave_warning_message){gave_warning_message = 1;einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));}}}}else{/* The symbol is a cdecl symbol, so we look for stdcallsymbols - which means scanning the whole symbol table. */pep_undef_found_sym = 0;bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,(char *) undef->root.string);sym = pep_undef_found_sym;if (sym){undef->type = bfd_link_hash_defined;undef->u.def.value = sym->u.def.value;undef->u.def.section = sym->u.def.section;if (pep_enable_stdcall_fixup == -1){einfo (_("Warning: resolving %s by linking to %s\n"),undef->root.string, sym->root.string);if (! gave_warning_message){gave_warning_message = 1;einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));}}}}}}static intmake_import_fixup (arelent *rel, asection *s){struct bfd_symbol *sym = *rel->sym_ptr_ptr;char addend[8];bfd_vma _addend = 0;int suc = 0;if (pep_dll_extra_pe_debug)printf ("arelent: %s@%#lx: add=%li\n", sym->name,(unsigned long) rel->address, (long) rel->addend);memset (addend, 0, sizeof (addend));switch ((rel->howto->bitsize)){case 8:suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);if (suc && rel->howto->pc_relative)_addend = (bfd_vma) ((bfd_signed_vma) ((char) bfd_get_8 (s->owner, addend)));else if (suc)_addend = ((bfd_vma) bfd_get_8 (s->owner, addend)) & 0xff;break;case 16:suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);if (suc && rel->howto->pc_relative)_addend = (bfd_vma) ((bfd_signed_vma) ((short) bfd_get_16 (s->owner, addend)));else if (suc)_addend = ((bfd_vma) bfd_get_16 (s->owner, addend)) & 0xffff;break;case 32:suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);if (suc && rel->howto->pc_relative)_addend = (bfd_vma) ((bfd_signed_vma) ((int) bfd_get_32 (s->owner, addend)));else if (suc)_addend = ((bfd_vma) bfd_get_32 (s->owner, addend)) & 0xffffffff;break;case 64:suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);if (suc)_addend = ((bfd_vma) bfd_get_64 (s->owner, addend));break;}if (! suc)einfo (_("%C: Cannot get section contents - auto-import exception\n"),s->owner, s, rel->address);if (pep_dll_extra_pe_debug){printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", (long) _addend, (long) rel->addend, (long) rel->address);if (rel->howto->pc_relative) printf (" pcrel");printf (" %d bit rel.\n",(int) rel->howto->bitsize);}pep_create_import_fixup (rel, s, _addend);return 1;}static voidpep_find_data_imports (void){struct bfd_link_hash_entry *undef, *sym;if (link_info.pei386_auto_import == 0)return;for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next){if (undef->type == bfd_link_hash_undefined){/* C++ symbols are *long*. */char buf[4096];if (pep_dll_extra_pe_debug)printf ("%s:%s\n", __FUNCTION__, undef->root.string);sprintf (buf, "__imp_%s", undef->root.string);sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);if (sym && sym->type == bfd_link_hash_defined){bfd *b = sym->u.def.section->owner;asymbol **symbols;int nsyms, i;if (link_info.pei386_auto_import == -1){static bfd_boolean warned = FALSE;info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),undef->root.string, buf);/* PR linker/4844. */if (! warned){warned = TRUE;einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));}}if (!bfd_generic_link_read_symbols (b)){einfo (_("%B%F: could not read symbols: %E\n"), b);return;}symbols = bfd_get_outsymbols (b);nsyms = bfd_get_symcount (b);for (i = 0; i < nsyms; i++){if (! CONST_STRNEQ (symbols[i]->name, "__head_"))continue;if (pep_dll_extra_pe_debug)printf ("->%s\n", symbols[i]->name);pep_data_import_dll = (char*) (symbols[i]->name +sizeof ("__head_") - 1);break;}pep_walk_relocs_of_symbol (&link_info, undef->root.string,make_import_fixup);/* Let's differentiate it somehow from defined. */undef->type = bfd_link_hash_defweak;/* We replace original name with __imp_ prefixed, this1) may trash memory 2) leads to duplicate symbol generation.Still, IMHO it's better than having name poluted. */undef->root.string = sym->root.string;undef->u.def.value = sym->u.def.value;undef->u.def.section = sym->u.def.section;}}}}static bfd_booleanpr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED){if (pep_dll_extra_pe_debug)printf ("+%s\n", h->string);return TRUE;}#endif /* DLL_SUPPORT */static voiddebug_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 voidgld_${EMULATION_NAME}_after_open (void){#ifdef DLL_SUPPORTif (pep_dll_extra_pe_debug){bfd *a;struct bfd_link_hash_entry *sym;printf ("%s()\n", __FUNCTION__);for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)printf ("-%s\n", sym->root.string);bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);for (a = link_info.input_bfds; a; a = a->link_next)printf ("*%s\n",a->filename);}#endif/* Pass the wacky PE command line options into the output bfd.FIXME: This should be done via a function, rather than byincluding an internal BFD header. */if (coff_data (link_info.output_bfd) == NULL|| coff_data (link_info.output_bfd)->pe == 0)einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),link_info.output_bfd);pe_data (link_info.output_bfd)->pe_opthdr = pep;pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;pe_data (link_info.output_bfd)->real_flags |= real_flags;/* At this point we must decide whether to use long section namesin the output or not. If the user hasn't explicitly specifiedon the command line, we leave it to the default for the format(object files yes, image files no), except if there is debuginformation present; GDB relies on the long section names tofind it, so enable it in that case. */if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none){/* Iterate over all sections of all input BFDs, checkingfor any that begin 'debug_' and are long names. */LANG_FOR_EACH_INPUT_STATEMENT (is){int found_debug = 0;bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);if (found_debug){pep_use_coff_long_section_names = 1;break;}}}pep_output_file_set_long_section_names (link_info.output_bfd);#ifdef DLL_SUPPORTif (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */pep_fixup_stdcalls ();pep_process_import_defs (link_info.output_bfd, &link_info);pep_find_data_imports ();#ifndef TARGET_IS_i386pepif (link_info.shared)#elseif (!link_info.relocatable)#endifpep_dll_build_sections (link_info.output_bfd, &link_info);#ifndef TARGET_IS_i386pepelsepep_exe_build_sections (link_info.output_bfd, &link_info);#endif#endif /* DLL_SUPPORT */{/* This next chunk of code tries to detect the case where you havetwo import libraries for the same DLL (specifically,symbolically linking libm.a and libc.a in cygwin tolibcygwin.a). In those cases, it's possible for functionthunks from the second implib to be used but without thehead/tail objects, causing an improper import table. We detectthose cases and rename the "other" import libraries to matchthe one the head/tail come from, so that the linker will sortthings 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 (CONST_STRNEQ (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'sfrom our own library. */for (sec = is->the_bfd->sections; sec; sec = sec->next){int i;long relsize;asymbol **symbols;arelent **relocs;int nrelocs;relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);if (relsize < 1)break;if (!bfd_generic_link_read_symbols (is->the_bfd)){einfo (_("%B%F: 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;char *other_bfd_filename;char *n;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_filename= blhe->u.def.section->owner->my_archive? bfd_get_filename (blhe->u.def.section->owner->my_archive): bfd_get_filename (blhe->u.def.section->owner);if (strcmp (bfd_get_filename (is->the_bfd->my_archive),other_bfd_filename) == 0)continue;/* Rename this implib to match the other one. */n = xmalloc (strlen (other_bfd_filename) + 1);strcpy (n, other_bfd_filename);is->the_bfd->my_archive->filename = n;}free (relocs);/* Note - we do not free the symbols,they are now cached in the BFD. */}}}}}{int is_ms_arch = 0;bfd *cur_arch = 0;lang_input_statement_type *is2;lang_input_statement_type *is3;/* 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. Wemust detect these and rename the members so that they'll linkcorrectly. There are three types of objects: the head, thethunks, and the sentinel(s). The head is easy; it's the onewith idata2. We assume that the sentinels won't have relocs,and the thunks will. It's easier than checking the symboltable for external references. */LANG_FOR_EACH_INPUT_STATEMENT (is){if (is->the_bfd->my_archive){char *pnt;bfd *arch = is->the_bfd->my_archive;if (cur_arch != arch){cur_arch = arch;is_ms_arch = 1;for (is3 = is;is3 && is3->the_bfd->my_archive == arch;is3 = (lang_input_statement_type *) is3->next){/* A MS dynamic import library can also contain staticmembers, so look for the first element with a .dllextension, and use that for the remainder of thecomparisons. */pnt = strrchr (is3->the_bfd->filename, '.');if (pnt != NULL && strcmp (pnt, ".dll") == 0)break;}if (is3 == NULL)is_ms_arch = 0;else{/* OK, found one. Now look to see if the remaining(dynamic import) members use the same name. */for (is2 = is;is2 && is2->the_bfd->my_archive == arch;is2 = (lang_input_statement_type *) is2->next){/* Skip static members, ie anything with a .objextension. */pnt = strrchr (is2->the_bfd->filename, '.');if (pnt != NULL && strcmp (pnt, ".obj") == 0)continue;if (strcmp (is3->the_bfd->filename,is2->the_bfd->filename)){is_ms_arch = 0;break;}}}}/* This fragment might have come from an .obj file in a Microsoftimport, and not an actual import record. If this is the case,then leave the filename alone. */pnt = strrchr (is->the_bfd->filename, '.');if (is_ms_arch && (strcmp (pnt, ".dll") == 0)){int idata2 = 0, reloc_count=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;reloc_count += sec->reloc_count;}if (idata2) /* .idata2 is the TOC */seq = 'a';else if (reloc_count > 0) /* thunks */seq = 'b';else /* sentinel */seq = 'c';new_name = xmalloc (strlen (is->the_bfd->filename) + 3);sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);is->the_bfd->filename = new_name;new_name = xmalloc (strlen (is->filename) + 3);sprintf (new_name, "%s.%c", is->filename, seq);is->filename = new_name;}}}}}static voidgld_${EMULATION_NAME}_before_allocation (void){before_allocation_default ();}#ifdef DLL_SUPPORT/* This is called when an input file isn't recognized as a BFD. Wecheck here for .DEF files and pull them in automatically. */static intsaw_option (char *option){int i;for (i = 0; init[i].ptr; i++)if (strcmp (init[i].symbol, option) == 0)return init[i].inited;return 0;}#endif /* DLL_SUPPORT */static bfd_booleangld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED){#ifdef DLL_SUPPORTconst char *ext = entry->filename + strlen (entry->filename) - 4;if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0){pep_def_file = def_file_parse (entry->filename, pep_def_file);if (pep_def_file){int i, buflen=0, len;char *buf;for (i = 0; i < pep_def_file->num_exports; i++){len = strlen (pep_def_file->exports[i].internal_name);if (buflen < len + 2)buflen = len + 2;}buf = xmalloc (buflen);for (i = 0; i < pep_def_file->num_exports; i++){struct bfd_link_hash_entry *h;sprintf (buf, "_%s", pep_def_file->exports[i].internal_name);h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);if (h == (struct bfd_link_hash_entry *) NULL)einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));if (h->type == bfd_link_hash_new){h->type = bfd_link_hash_undefined;h->u.undef.abfd = NULL;bfd_link_add_undef (link_info.hash, h);}}free (buf);/* def_file_print (stdout, pep_def_file); */if (pep_def_file->is_dll == 1)link_info.shared = 1;if (pep_def_file->base_address != (bfd_vma)(-1)){pep.ImageBase= pe_data (link_info.output_bfd)->pe_opthdr.ImageBase= init[IMAGEBASEOFF].value= pep_def_file->base_address;init[IMAGEBASEOFF].inited = 1;if (image_base_statement)image_base_statement->exp = exp_assop ('=', "__image_base__",exp_intop (pep.ImageBase));}if (pep_def_file->stack_reserve != -1&& ! saw_option ("__size_of_stack_reserve__")){pep.SizeOfStackReserve = pep_def_file->stack_reserve;if (pep_def_file->stack_commit != -1)pep.SizeOfStackCommit = pep_def_file->stack_commit;}if (pep_def_file->heap_reserve != -1&& ! saw_option ("__size_of_heap_reserve__")){pep.SizeOfHeapReserve = pep_def_file->heap_reserve;if (pep_def_file->heap_commit != -1)pep.SizeOfHeapCommit = pep_def_file->heap_commit;}return TRUE;}}#endifreturn FALSE;}static bfd_booleangld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED){#ifdef DLL_SUPPORT#ifdef TARGET_IS_i386peppep_dll_id_target ("pei-x86-64");#endifif (pep_bfd_is_dll (entry->the_bfd))return pep_implied_import_dll (entry->filename);#endifreturn FALSE;}static voidgld_${EMULATION_NAME}_finish (void){finish_default ();#ifdef DLL_SUPPORTif (link_info.shared|| (!link_info.relocatable && pep_def_file->num_exports != 0)){pep_dll_fill_sections (link_info.output_bfd, &link_info);if (pep_implib_filename)pep_dll_generate_implib (pep_def_file, pep_implib_filename, &link_info);}if (pep_out_def_filename)pep_dll_generate_def_file (pep_out_def_filename);#endif /* DLL_SUPPORT *//* I don't know where .idata gets set as code, but it shouldn't be. */{asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");if (asec){asec->flags &= ~SEC_CODE;asec->flags |= SEC_DATA;}}}/* Place an orphan section.We use this to put sections in a reasonable place in the file, andto ensure that they are aligned as required.We handle grouped sections here as well. A section named .foo\$nngoes into the output section .foo. All grouped sections are sortedby name.Grouped sections for the default sections are handled by thedefault linker script using wildcards, and are sorted bysort_sections. */static lang_output_section_statement_type *gld_${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_statement_union_type **pl;/* Look through the script to see where to place this section. */if (!link_info.relocatable&& (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, telllang_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 thisname, 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 ofa --section-start command line switch. */lang_add_section (&add_child, s, os);break;}}if (os == NULL){static struct orphan_save hold[] ={{ ".text",SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,0, 0, 0, 0 },{ ".rdata",SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,0, 0, 0, 0 },{ ".data",SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,0, 0, 0, 0 },{ ".bss",SEC_ALLOC,0, 0, 0, 0 }};enum orphan_save_index{orphan_text = 0,orphan_rodata,orphan_data,orphan_bss};static int orphan_init_done = 0;struct orphan_save *place;lang_output_section_statement_type *after;etree_type *address;if (!orphan_init_done){struct orphan_save *ho;for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)if (ho->name != NULL){ho->os = lang_output_section_find (ho->name);if (ho->os != NULL && ho->os->flags == 0)ho->os->flags = ho->flags;}orphan_init_done = 1;}/* Try to put the new output section in a reasonable place basedon the section name and section flags. */place = NULL;if ((s->flags & SEC_ALLOC) == 0);else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)place = &hold[orphan_bss];else if ((s->flags & SEC_READONLY) == 0)place = &hold[orphan_data];else if ((s->flags & SEC_CODE) == 0)place = &hold[orphan_rodata];elseplace = &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, &place->os, NULL);if (after == NULL)/* *ABS* is always the first output section statement. */after = (&lang_output_section_statement.head->output_section_statement);}/* All sections in an executable must be aligned to a page boundary. */address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));os = lang_insert_orphan (s, secname, constraint, after, place, address,&add_child);}/* 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_get_section_name (ls->section->owner, 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 bfd_booleangld_${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;bfd_boolean 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 precedelibfoo.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 },#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 tosee if their length is longer than libname_fmt[0].format, and ifso, 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->is_archive)return FALSE;filename = entry->filename;if (format_max_len == 0)/* We need to allow space in the memory that we are going to allocatefor the characters in the format string. Since the format array isstatic we only need to calculate this information once. In theorythis value could also be computed statically, but this introducesthe possibility for a discrepancy and hence a possible memorycorruption. The lengths we compute here will be too long becausethey will include any formating characters (%s) in the strings, butthis will not matter. */for (i = 0; libname_fmt[i].format; i++)if (format_max_len < strlen (libname_fmt[i].format))format_max_len = strlen (libname_fmt[i].format);full_string = xmalloc (strlen (search->name)+ strlen (filename)+ format_max_len#ifdef DLL_SUPPORT+ (pep_dll_search_prefix? strlen (pep_dll_search_prefix) : 0)#endif/* Allow for the terminating NUL and for the pathseparator character that is inserted betweensearch->name and the start of the format string. */+ 2);sprintf (full_string, "%s/", search->name);base_string = full_string + strlen (full_string);for (i = 0; libname_fmt[i].format; i++){#ifdef DLL_SUPPORTif (libname_fmt[i].use_prefix){if (!pep_dll_search_prefix)continue;sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);}else#endifsprintf (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 intgld_${EMULATION_NAME}_find_potential_libraries(char *name, lang_input_statement_type *entry){return ldfile_open_file_search (name, entry, "", ".lib");}static char *gld_${EMULATION_NAME}_get_script (int *isfile)EOF# Scripts compiled in.# sed commands to quote an ld script as a C string.sc="-f stringify.sed"fragment <<EOF{*isfile = 0;if (link_info.relocatable && config.build_constructors)returnEOFsed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.cecho ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.csed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.cecho ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.csed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.cecho ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.csed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.cif test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; thenecho ' ; else if (link_info.pei386_auto_import == 1) return' >> e${EMULATION_NAME}.csed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.cfiecho ' ; else return' >> e${EMULATION_NAME}.csed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.cecho '; }' >> e${EMULATION_NAME}.cfragment <<EOFstruct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation ={gld_${EMULATION_NAME}_before_parse,syslib_default,hll_default,gld_${EMULATION_NAME}_after_parse,gld_${EMULATION_NAME}_after_open,after_allocation_default,set_output_arch_default,ldemul_default_target,gld_${EMULATION_NAME}_before_allocation,gld_${EMULATION_NAME}_get_script,"${EMULATION_NAME}","${OUTPUT_FORMAT}",gld_${EMULATION_NAME}_finish,NULL, /* Create output section statements. */gld_${EMULATION_NAME}_open_dynamic_archive,gld_${EMULATION_NAME}_place_orphan,gld_${EMULATION_NAME}_set_symbols,NULL, /* parse_args */gld${EMULATION_NAME}_add_options,gld${EMULATION_NAME}_handle_option,gld_${EMULATION_NAME}_unrecognized_file,gld_${EMULATION_NAME}_list_options,gld_${EMULATION_NAME}_recognized_file,gld_${EMULATION_NAME}_find_potential_libraries,NULL /* new_vers_pattern. */};EOF
