1# This shell script emits a C file. -*- C -*- 2# It does some substitutions. 3if [ -z "$MACHINE" ]; then 4 OUTPUT_ARCH=${ARCH} 5else 6 OUTPUT_ARCH=${ARCH}:${MACHINE} 7fi 8rm -f e${EMULATION_NAME}.c 9(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-) 10fragment <<EOF 11/* Copyright (C) 1995-2014 Free Software Foundation, Inc. 12 13 This file is part of the GNU Binutils. 14 15 This program is free software; you can redistribute it and/or modify 16 it under the terms of the GNU General Public License as published by 17 the Free Software Foundation; either version 3 of the License, or 18 (at your option) any later version. 19 20 This program is distributed in the hope that it will be useful, 21 but WITHOUT ANY WARRANTY; without even the implied warranty of 22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 GNU General Public License for more details. 24 25 You should have received a copy of the GNU General Public License 26 along with this program; if not, write to the Free Software 27 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 28 MA 02110-1301, USA. */ 29 30 31/* For WINDOWS_NT */ 32/* The original file generated returned different default scripts depending 33 on whether certain switches were set, but these switches pertain to the 34 Linux system and that particular version of coff. In the NT case, we 35 only determine if the subsystem is console or windows in order to select 36 the correct entry point by default. */ 37 38#define TARGET_IS_${EMULATION_NAME} 39 40/* Do this before including bfd.h, so we prototype the right functions. */ 41 42#if defined(TARGET_IS_armpe) \ 43 || defined(TARGET_IS_arm_epoc_pe) \ 44 || defined(TARGET_IS_arm_wince_pe) 45#define bfd_arm_allocate_interworking_sections \ 46 bfd_${EMULATION_NAME}_allocate_interworking_sections 47#define bfd_arm_get_bfd_for_interworking \ 48 bfd_${EMULATION_NAME}_get_bfd_for_interworking 49#define bfd_arm_process_before_allocation \ 50 bfd_${EMULATION_NAME}_process_before_allocation 51#endif 52 53#include "sysdep.h" 54#include "bfd.h" 55#include "bfdlink.h" 56#include "getopt.h" 57#include "libiberty.h" 58#include "filenames.h" 59#include "ld.h" 60#include "ldmain.h" 61#include "ldexp.h" 62#include "ldlang.h" 63#include "ldfile.h" 64#include "ldemul.h" 65#include <ldgram.h> 66#include "ldlex.h" 67#include "ldmisc.h" 68#include "ldctor.h" 69#include "ldbuildid.h" 70#include "coff/internal.h" 71 72/* FIXME: See bfd/peXXigen.c for why we include an architecture specific 73 header in generic PE code. */ 74#include "coff/i386.h" 75#include "coff/pe.h" 76 77/* FIXME: These are BFD internal header files, and we should not be 78 using it here. */ 79#include "../bfd/libcoff.h" 80#include "../bfd/libpei.h" 81 82#include "deffile.h" 83#include "pe-dll.h" 84#include "safe-ctype.h" 85 86/* Permit the emulation parameters to override the default section 87 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes 88 it seem that include/coff/internal.h should not define 89 PE_DEF_SECTION_ALIGNMENT. */ 90#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT} 91#undef PE_DEF_SECTION_ALIGNMENT 92#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT} 93#endif 94 95#if defined(TARGET_IS_i386pe) \ 96 || defined(TARGET_IS_shpe) \ 97 || defined(TARGET_IS_armpe) \ 98 || defined(TARGET_IS_arm_epoc_pe) \ 99 || defined(TARGET_IS_arm_wince_pe) 100#define DLL_SUPPORT 101#endif 102 103#if defined(TARGET_IS_i386pe) 104#define DEFAULT_PSEUDO_RELOC_VERSION 2 105#else 106#define DEFAULT_PSEUDO_RELOC_VERSION 1 107#endif 108 109#if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT) 110#define PE_DEF_SUBSYSTEM 3 111#else 112#undef NT_EXE_IMAGE_BASE 113#undef PE_DEF_SECTION_ALIGNMENT 114#undef PE_DEF_FILE_ALIGNMENT 115#define NT_EXE_IMAGE_BASE 0x00010000 116 117#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 118#define PE_DEF_SECTION_ALIGNMENT 0x00001000 119#define PE_DEF_SUBSYSTEM 9 120#else 121#define PE_DEF_SECTION_ALIGNMENT 0x00000400 122#define PE_DEF_SUBSYSTEM 2 123#endif 124#define PE_DEF_FILE_ALIGNMENT 0x00000200 125#endif 126 127static struct internal_extra_pe_aouthdr pe; 128static int dll; 129static int pe_subsystem = ${SUBSYSTEM}; 130static flagword real_flags = 0; 131static int support_old_code = 0; 132static char * thumb_entry_symbol = NULL; 133static lang_assignment_statement_type *image_base_statement = 0; 134static unsigned short pe_dll_characteristics = 0; 135static bfd_boolean insert_timestamp = TRUE; 136static const char *emit_build_id; 137 138#ifdef DLL_SUPPORT 139static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */ 140static char *pe_out_def_filename = NULL; 141static char *pe_implib_filename = NULL; 142static int pe_enable_auto_image_base = 0; 143static unsigned long pe_auto_image_base = 0x61500000; 144static char *pe_dll_search_prefix = NULL; 145#endif 146 147extern const char *output_filename; 148 149static int is_underscoring (void) 150{ 151 int u = 0; 152 if (pe_leading_underscore != -1) 153 return pe_leading_underscore; 154 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL)) 155 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL); 156 157 if (u == -1) 158 abort (); 159 pe_leading_underscore = (u != 0 ? 1 : 0); 160 return pe_leading_underscore; 161} 162 163static void 164gld_${EMULATION_NAME}_before_parse (void) 165{ 166 is_underscoring (); 167 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); 168 output_filename = "${EXECUTABLE_NAME:-a.exe}"; 169#ifdef DLL_SUPPORT 170 input_flags.dynamic = TRUE; 171 config.has_shared = 1; 172EOF 173 174# Cygwin no longer wants these noisy warnings. Other PE 175# targets might like to consider adding themselves here. 176# See also the mail thread starting here for the reason why 177# merge_rdata defaults to 0 for cygwin: 178# http://cygwin.com/ml/cygwin-apps/2013-04/msg00187.html 179case ${target} in 180 *-*-cygwin*) 181 default_auto_import=1 182 default_merge_rdata=0 183 ;; 184 i[3-7]86-*-mingw* | x86_64-*-mingw*) 185 default_auto_import=1 186 default_merge_rdata=0 187 ;; 188 *) 189 default_auto_import=-1 190 default_merge_rdata=1 191 ;; 192esac 193 194fragment <<EOF 195 link_info.pei386_auto_import = ${default_auto_import}; 196 /* Use by default version. */ 197 link_info.pei386_runtime_pseudo_reloc = DEFAULT_PSEUDO_RELOC_VERSION; 198#endif 199} 200 201/* Indicates if RDATA shall be merged into DATA when pseudo-relocation 202 version 2 is used and auto-import is enabled. */ 203#define MERGE_RDATA_V2 ${default_merge_rdata} 204 205/* PE format extra command line options. */ 206 207/* Used for setting flags in the PE header. */ 208#define OPTION_BASE_FILE (300 + 1) 209#define OPTION_DLL (OPTION_BASE_FILE + 1) 210#define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1) 211#define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1) 212#define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1) 213#define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1) 214#define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1) 215#define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1) 216#define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1) 217#define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1) 218#define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1) 219#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1) 220#define OPTION_SUBSYSTEM (OPTION_STACK + 1) 221#define OPTION_HEAP (OPTION_SUBSYSTEM + 1) 222#define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1) 223#define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1) 224#define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1) 225#define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1) 226#define OPTION_EXCLUDE_ALL_SYMBOLS (OPTION_EXCLUDE_SYMBOLS + 1) 227#define OPTION_KILL_ATS (OPTION_EXCLUDE_ALL_SYMBOLS + 1) 228#define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1) 229#define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1) 230#define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1) 231#define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1) 232#define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1) 233#define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1) 234#define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1) 235#define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1) 236#define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1) 237#define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1) 238#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1) 239#define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1) 240#define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1) 241#define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1) 242#define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1) 243#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \ 244 (OPTION_EXCLUDE_LIBS + 1) 245#define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \ 246 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1) 247#define OPTION_LARGE_ADDRESS_AWARE (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1) 248#define OPTION_DISABLE_LARGE_ADDRESS_AWARE \ 249 (OPTION_LARGE_ADDRESS_AWARE + 1) 250#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 \ 251 (OPTION_DISABLE_LARGE_ADDRESS_AWARE + 1) 252#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 \ 253 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 + 1) 254#define OPTION_EXCLUDE_MODULES_FOR_IMPLIB \ 255 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 + 1) 256#define OPTION_USE_NUL_PREFIXED_IMPORT_TABLES \ 257 (OPTION_EXCLUDE_MODULES_FOR_IMPLIB + 1) 258#define OPTION_NO_LEADING_UNDERSCORE (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES + 1) 259#define OPTION_LEADING_UNDERSCORE (OPTION_NO_LEADING_UNDERSCORE + 1) 260#define OPTION_ENABLE_LONG_SECTION_NAMES \ 261 (OPTION_LEADING_UNDERSCORE + 1) 262#define OPTION_DISABLE_LONG_SECTION_NAMES \ 263 (OPTION_ENABLE_LONG_SECTION_NAMES + 1) 264/* DLLCharacteristics flags. */ 265#define OPTION_DYNAMIC_BASE (OPTION_DISABLE_LONG_SECTION_NAMES + 1) 266#define OPTION_FORCE_INTEGRITY (OPTION_DYNAMIC_BASE + 1) 267#define OPTION_NX_COMPAT (OPTION_FORCE_INTEGRITY + 1) 268#define OPTION_NO_ISOLATION (OPTION_NX_COMPAT + 1) 269#define OPTION_NO_SEH (OPTION_NO_ISOLATION + 1) 270#define OPTION_NO_BIND (OPTION_NO_SEH + 1) 271#define OPTION_WDM_DRIVER (OPTION_NO_BIND + 1) 272#define OPTION_TERMINAL_SERVER_AWARE (OPTION_WDM_DRIVER + 1) 273/* Determinism. */ 274#define OPTION_INSERT_TIMESTAMP (OPTION_TERMINAL_SERVER_AWARE + 1) 275#define OPTION_NO_INSERT_TIMESTAMP (OPTION_INSERT_TIMESTAMP + 1) 276#define OPTION_BUILD_ID (OPTION_NO_INSERT_TIMESTAMP + 1) 277 278static void 279gld${EMULATION_NAME}_add_options 280 (int ns ATTRIBUTE_UNUSED, 281 char **shortopts ATTRIBUTE_UNUSED, 282 int nl, 283 struct option **longopts, 284 int nrl ATTRIBUTE_UNUSED, 285 struct option **really_longopts ATTRIBUTE_UNUSED) 286{ 287 static const struct option xtra_long[] = 288 { 289 /* PE options. */ 290 {"base-file", required_argument, NULL, OPTION_BASE_FILE}, 291 {"dll", no_argument, NULL, OPTION_DLL}, 292 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, 293 {"heap", required_argument, NULL, OPTION_HEAP}, 294 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, 295 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, 296 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, 297 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, 298 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, 299 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, 300 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, 301 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, 302 {"stack", required_argument, NULL, OPTION_STACK}, 303 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, 304 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE}, 305 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, 306 {"use-nul-prefixed-import-tables", no_argument, NULL, 307 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES}, 308 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE}, 309 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE}, 310 {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP}, 311 {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP}, 312#ifdef DLL_SUPPORT 313 /* getopt allows abbreviations, so we do this to stop it 314 from treating -o as an abbreviation for this option. */ 315 {"output-def", required_argument, NULL, OPTION_OUT_DEF}, 316 {"output-def", required_argument, NULL, OPTION_OUT_DEF}, 317 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL}, 318 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS}, 319 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS}, 320 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, 321 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB}, 322 {"kill-at", no_argument, NULL, OPTION_KILL_ATS}, 323 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES}, 324 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP}, 325 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP}, 326 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME}, 327 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS}, 328 /* getopt() allows abbreviations, so we do this to stop it from 329 treating -c as an abbreviation for these --compat-implib. */ 330 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, 331 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, 332 {"enable-auto-image-base", optional_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE}, 333 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE}, 334 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX}, 335 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES}, 336 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT}, 337 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT}, 338 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG}, 339 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC}, 340 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC}, 341 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1}, 342 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2}, 343#endif 344 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE}, 345 {"disable-large-address-aware", no_argument, NULL, OPTION_DISABLE_LARGE_ADDRESS_AWARE}, 346 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES}, 347 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES}, 348 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE}, 349 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY}, 350 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT}, 351 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION}, 352 {"no-seh", no_argument, NULL, OPTION_NO_SEH}, 353 {"no-bind", no_argument, NULL, OPTION_NO_BIND}, 354 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER}, 355 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE}, 356 {"build-id", optional_argument, NULL, OPTION_BUILD_ID}, 357 {NULL, no_argument, NULL, 0} 358 }; 359 360 *longopts 361 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); 362 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); 363} 364 365/* PE/WIN32; added routines to get the subsystem type, heap and/or stack 366 parameters which may be input from the command line. */ 367 368typedef struct 369{ 370 void *ptr; 371 int size; 372 int value; 373 char *symbol; 374 int inited; 375 /* FALSE for an assembly level symbol and TRUE for a C visible symbol. 376 C visible symbols can be prefixed by underscore dependent to target's 377 settings. */ 378 bfd_boolean is_c_symbol; 379} definfo; 380 381/* Get symbol name dependent to kind and C visible state of 382 underscore. */ 383#define GET_INIT_SYMBOL_NAME(IDX) \ 384 (init[(IDX)].symbol \ 385 + ((init[(IDX)].is_c_symbol == FALSE || (is_underscoring () != 0)) ? 0 : 1)) 386 387/* Decorates the C visible symbol by underscore, if target requires. */ 388#define U(CSTR) \ 389 ((is_underscoring () == 0) ? CSTR : "_" CSTR) 390 391/* Get size of constant string for a possible underscore prefixed 392 C visible symbol. */ 393#define U_SIZE(CSTR) \ 394 (sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1)) 395 396#define D(field,symbol,def,usc) {&pe.field, sizeof (pe.field), def, symbol, 0, usc} 397 398static definfo init[] = 399{ 400 /* imagebase must be first */ 401#define IMAGEBASEOFF 0 402 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE), 403#define DLLOFF 1 404 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE}, 405#define MSIMAGEBASEOFF 2 406 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE), 407 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE), 408 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE), 409 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE), 410 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE), 411 D(MajorImageVersion,"__major_image_version__", 1, FALSE), 412 D(MinorImageVersion,"__minor_image_version__", 0, FALSE), 413#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 414 D(MajorSubsystemVersion,"__major_subsystem_version__", 3, FALSE), 415#else 416 D(MajorSubsystemVersion,"__major_subsystem_version__", 4, FALSE), 417#endif 418 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0, FALSE), 419 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE), 420 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE), 421 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE), 422 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE), 423 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE), 424 D(LoaderFlags,"__loader_flags__", 0x0, FALSE), 425 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE), 426 { NULL, 0, 0, NULL, 0 , FALSE} 427}; 428 429 430static void 431gld_${EMULATION_NAME}_list_options (FILE *file) 432{ 433 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n")); 434 fprintf (file, _(" --dll Set image base to the default for DLLs\n")); 435 fprintf (file, _(" --file-alignment <size> Set file alignment\n")); 436 fprintf (file, _(" --heap <size> Set initial size of the heap\n")); 437 fprintf (file, _(" --image-base <address> Set start address of the executable\n")); 438 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n")); 439 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n")); 440 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n")); 441 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n")); 442 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n")); 443 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n")); 444 fprintf (file, _(" --section-alignment <size> Set section alignment\n")); 445 fprintf (file, _(" --stack <size> Set size of the initial stack\n")); 446 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n")); 447 fprintf (file, _(" --support-old-code Support interworking with old code\n")); 448 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n")); 449 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n")); 450 fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default).\n")); 451 fprintf (file, _(" This makes binaries non-deterministic\n")); 452#ifdef DLL_SUPPORT 453 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n")); 454 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n")); 455 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n")); 456 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n")); 457 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n")); 458 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n")); 459 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n")); 460 fprintf (file, _(" Exclude objects, archive members from auto\n")); 461 fprintf (file, _(" export, place into import library instead.\n")); 462 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n")); 463 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n")); 464 fprintf (file, _(" --out-implib <file> Generate import library\n")); 465 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n")); 466 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n")); 467 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\ 468 create __imp_<SYMBOL> as well.\n")); 469 fprintf (file, _(" --enable-auto-image-base[=<address>] Automatically choose image base for DLLs\n\ 470 (optionally starting with address) unless\n\ 471 specifically set with --image-base\n")); 472 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n")); 473 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\ 474 an importlib, use <string><basename>.dll\n\ 475 in preference to lib<basename>.dll \n")); 476 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\ 477 __imp_sym for DATA references\n")); 478 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n")); 479 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\ 480 adding pseudo-relocations resolved at\n\ 481 runtime.\n")); 482 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\ 483 auto-imported DATA.\n")); 484 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\ 485 or linking to DLLs (esp. auto-import)\n")); 486#endif 487 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\ 488 greater than 2 gigabytes\n")); 489 fprintf (file, _(" --disable-large-address-aware Executable does not support virtual\n\ 490 addresses greater than 2 gigabytes\n")); 491 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\ 492 executable image files\n")); 493 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\ 494 in object files\n")); 495 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\ 496 address space layout randomization (ASLR)\n")); 497 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n")); 498 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n")); 499 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n")); 500 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\ 501 be called in this image\n")); 502 fprintf (file, _(" --no-bind Do not bind this image\n")); 503 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n")); 504 fprintf (file, _(" --tsaware Image is Terminal Server aware\n")); 505 fprintf (file, _(" --build-id[=STYLE] Generate build ID\n")); 506} 507 508 509static void 510set_pe_name (char *name, long val) 511{ 512 int i; 513 is_underscoring (); 514 515 /* Find the name and set it. */ 516 for (i = 0; init[i].ptr; i++) 517 { 518 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0) 519 { 520 init[i].value = val; 521 init[i].inited = 1; 522 if (strcmp (name,"__image_base__") == 0) 523 set_pe_name (U ("__ImageBase"), val); 524 return; 525 } 526 } 527 abort (); 528} 529 530static void 531set_entry_point (void) 532{ 533 const char *entry; 534 const char *initial_symbol_char; 535 int i; 536 537 static const struct 538 { 539 const int value; 540 const char *entry; 541 } 542 v[] = 543 { 544 { 1, "NtProcessStartup" }, 545 { 2, "WinMainCRTStartup" }, 546 { 3, "mainCRTStartup" }, 547 { 7, "__PosixProcessStartup"}, 548 { 9, "WinMainCRTStartup" }, 549 {14, "mainCRTStartup" }, 550 { 0, NULL } 551 }; 552 553 /* Entry point name for arbitrary subsystem numbers. */ 554 static const char default_entry[] = "mainCRTStartup"; 555 556 if (link_info.shared || dll) 557 { 558#if defined (TARGET_IS_i386pe) 559 entry = "DllMainCRTStartup@12"; 560#else 561 entry = "DllMainCRTStartup"; 562#endif 563 } 564 else 565 { 566 567 for (i = 0; v[i].entry; i++) 568 if (v[i].value == pe_subsystem) 569 break; 570 571 /* If no match, use the default. */ 572 if (v[i].entry != NULL) 573 entry = v[i].entry; 574 else 575 entry = default_entry; 576 } 577 578 initial_symbol_char = (is_underscoring () != 0 ? "_" : ""); 579 580 if (*initial_symbol_char != '\0') 581 { 582 char *alc_entry; 583 584 /* lang_default_entry expects its argument to be permanently 585 allocated, so we don't free this string. */ 586 alc_entry = xmalloc (strlen (initial_symbol_char) 587 + strlen (entry) 588 + 1); 589 strcpy (alc_entry, initial_symbol_char); 590 strcat (alc_entry, entry); 591 entry = alc_entry; 592 } 593 594 lang_default_entry (entry); 595} 596 597static void 598set_pe_subsystem (void) 599{ 600 const char *sver; 601 char *end; 602 int len; 603 int i; 604 unsigned long temp_subsystem; 605 static const struct 606 { 607 const char *name; 608 const int value; 609 } 610 v[] = 611 { 612 { "native", 1}, 613 { "windows", 2}, 614 { "console", 3}, 615 { "posix", 7}, 616 { "wince", 9}, 617 { "xbox", 14}, 618 { NULL, 0 } 619 }; 620 621 /* Check for the presence of a version number. */ 622 sver = strchr (optarg, ':'); 623 if (sver == NULL) 624 len = strlen (optarg); 625 else 626 { 627 len = sver - optarg; 628 set_pe_name ("__major_subsystem_version__", 629 strtoul (sver + 1, &end, 0)); 630 if (*end == '.') 631 set_pe_name ("__minor_subsystem_version__", 632 strtoul (end + 1, &end, 0)); 633 if (*end != '\0') 634 einfo (_("%P: warning: bad version number in -subsystem option\n")); 635 } 636 637 /* Check for numeric subsystem. */ 638 temp_subsystem = strtoul (optarg, & end, 0); 639 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536)) 640 { 641 /* Search list for a numeric match to use its entry point. */ 642 for (i = 0; v[i].name; i++) 643 if (v[i].value == (int) temp_subsystem) 644 break; 645 646 /* Use this subsystem. */ 647 pe_subsystem = (int) temp_subsystem; 648 } 649 else 650 { 651 /* Search for subsystem by name. */ 652 for (i = 0; v[i].name; i++) 653 if (strncmp (optarg, v[i].name, len) == 0 654 && v[i].name[len] == '\0') 655 break; 656 657 if (v[i].name == NULL) 658 { 659 einfo (_("%P%F: invalid subsystem type %s\n"), optarg); 660 return; 661 } 662 663 pe_subsystem = v[i].value; 664 } 665 666 set_pe_name ("__subsystem__", pe_subsystem); 667 668 return; 669} 670 671 672static void 673set_pe_value (char *name) 674{ 675 char *end; 676 677 set_pe_name (name, strtoul (optarg, &end, 0)); 678 679 if (end == optarg) 680 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg); 681 682 optarg = end; 683} 684 685 686static void 687set_pe_stack_heap (char *resname, char *comname) 688{ 689 set_pe_value (resname); 690 691 if (*optarg == ',') 692 { 693 optarg++; 694 set_pe_value (comname); 695 } 696 else if (*optarg) 697 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg); 698} 699 700#define DEFAULT_BUILD_ID_STYLE "md5" 701 702static bfd_boolean 703gld${EMULATION_NAME}_handle_option (int optc) 704{ 705 switch (optc) 706 { 707 default: 708 return FALSE; 709 710 case OPTION_BASE_FILE: 711 link_info.base_file = fopen (optarg, FOPEN_WB); 712 if (link_info.base_file == NULL) 713 einfo (_("%F%P: cannot open base file %s\n"), optarg); 714 break; 715 716 /* PE options. */ 717 case OPTION_HEAP: 718 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); 719 break; 720 case OPTION_STACK: 721 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); 722 break; 723 case OPTION_SUBSYSTEM: 724 set_pe_subsystem (); 725 break; 726 case OPTION_MAJOR_OS_VERSION: 727 set_pe_value ("__major_os_version__"); 728 break; 729 case OPTION_MINOR_OS_VERSION: 730 set_pe_value ("__minor_os_version__"); 731 break; 732 case OPTION_MAJOR_SUBSYSTEM_VERSION: 733 set_pe_value ("__major_subsystem_version__"); 734 break; 735 case OPTION_MINOR_SUBSYSTEM_VERSION: 736 set_pe_value ("__minor_subsystem_version__"); 737 break; 738 case OPTION_MAJOR_IMAGE_VERSION: 739 set_pe_value ("__major_image_version__"); 740 break; 741 case OPTION_MINOR_IMAGE_VERSION: 742 set_pe_value ("__minor_image_version__"); 743 break; 744 case OPTION_FILE_ALIGNMENT: 745 set_pe_value ("__file_alignment__"); 746 break; 747 case OPTION_SECTION_ALIGNMENT: 748 set_pe_value ("__section_alignment__"); 749 break; 750 case OPTION_DLL: 751 set_pe_name ("__dll__", 1); 752 break; 753 case OPTION_IMAGE_BASE: 754 set_pe_value ("__image_base__"); 755 break; 756 case OPTION_SUPPORT_OLD_CODE: 757 support_old_code = 1; 758 break; 759 case OPTION_THUMB_ENTRY: 760 thumb_entry_symbol = optarg; 761 break; 762 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES: 763 pe_use_nul_prefixed_import_tables = TRUE; 764 break; 765 case OPTION_NO_LEADING_UNDERSCORE: 766 pe_leading_underscore = 0; 767 break; 768 case OPTION_LEADING_UNDERSCORE: 769 pe_leading_underscore = 1; 770 break; 771 case OPTION_INSERT_TIMESTAMP: 772 insert_timestamp = TRUE; 773 break; 774 case OPTION_NO_INSERT_TIMESTAMP: 775 insert_timestamp = FALSE; 776 break; 777#ifdef DLL_SUPPORT 778 case OPTION_OUT_DEF: 779 pe_out_def_filename = xstrdup (optarg); 780 break; 781 case OPTION_EXPORT_ALL: 782 pe_dll_export_everything = 1; 783 break; 784 case OPTION_EXCLUDE_SYMBOLS: 785 pe_dll_add_excludes (optarg, EXCLUDESYMS); 786 break; 787 case OPTION_EXCLUDE_ALL_SYMBOLS: 788 pe_dll_exclude_all_symbols = 1; 789 break; 790 case OPTION_EXCLUDE_LIBS: 791 pe_dll_add_excludes (optarg, EXCLUDELIBS); 792 break; 793 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB: 794 pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB); 795 break; 796 case OPTION_KILL_ATS: 797 pe_dll_kill_ats = 1; 798 break; 799 case OPTION_STDCALL_ALIASES: 800 pe_dll_stdcall_aliases = 1; 801 break; 802 case OPTION_ENABLE_STDCALL_FIXUP: 803 pe_enable_stdcall_fixup = 1; 804 break; 805 case OPTION_DISABLE_STDCALL_FIXUP: 806 pe_enable_stdcall_fixup = 0; 807 break; 808 case OPTION_IMPLIB_FILENAME: 809 pe_implib_filename = xstrdup (optarg); 810 break; 811 case OPTION_WARN_DUPLICATE_EXPORTS: 812 pe_dll_warn_dup_exports = 1; 813 break; 814 case OPTION_IMP_COMPAT: 815 pe_dll_compat_implib = 1; 816 break; 817 case OPTION_ENABLE_AUTO_IMAGE_BASE: 818 pe_enable_auto_image_base = 1; 819 if (optarg && *optarg) 820 { 821 char *end; 822 pe_auto_image_base = strtoul (optarg, &end, 0); 823 /* XXX should check that we actually parsed something */ 824 } 825 break; 826 case OPTION_DISABLE_AUTO_IMAGE_BASE: 827 pe_enable_auto_image_base = 0; 828 break; 829 case OPTION_DLL_SEARCH_PREFIX: 830 pe_dll_search_prefix = xstrdup (optarg); 831 break; 832 case OPTION_NO_DEFAULT_EXCLUDES: 833 pe_dll_do_default_excludes = 0; 834 break; 835 case OPTION_DLL_ENABLE_AUTO_IMPORT: 836 link_info.pei386_auto_import = 1; 837 break; 838 case OPTION_DLL_DISABLE_AUTO_IMPORT: 839 link_info.pei386_auto_import = 0; 840 break; 841 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC: 842 link_info.pei386_runtime_pseudo_reloc = 843 DEFAULT_PSEUDO_RELOC_VERSION; 844 break; 845 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1: 846 link_info.pei386_runtime_pseudo_reloc = 1; 847 break; 848 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2: 849 link_info.pei386_runtime_pseudo_reloc = 2; 850 break; 851 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC: 852 link_info.pei386_runtime_pseudo_reloc = 0; 853 break; 854 case OPTION_ENABLE_EXTRA_PE_DEBUG: 855 pe_dll_extra_pe_debug = 1; 856 break; 857#endif 858 case OPTION_LARGE_ADDRESS_AWARE: 859 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; 860 break; 861 case OPTION_DISABLE_LARGE_ADDRESS_AWARE: 862 real_flags &= ~ IMAGE_FILE_LARGE_ADDRESS_AWARE; 863 break; 864 case OPTION_ENABLE_LONG_SECTION_NAMES: 865 pe_use_coff_long_section_names = 1; 866 break; 867 case OPTION_DISABLE_LONG_SECTION_NAMES: 868 pe_use_coff_long_section_names = 0; 869 break; 870/* Get DLLCharacteristics bits */ 871 case OPTION_DYNAMIC_BASE: 872 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE; 873 break; 874 case OPTION_FORCE_INTEGRITY: 875 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY; 876 break; 877 case OPTION_NX_COMPAT: 878 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT; 879 break; 880 case OPTION_NO_ISOLATION: 881 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION; 882 break; 883 case OPTION_NO_SEH: 884 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH; 885 break; 886 case OPTION_NO_BIND: 887 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND; 888 break; 889 case OPTION_WDM_DRIVER: 890 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER; 891 break; 892 case OPTION_TERMINAL_SERVER_AWARE: 893 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE; 894 break; 895 case OPTION_BUILD_ID: 896 if (emit_build_id != NULL) 897 { 898 free ((char *) emit_build_id); 899 emit_build_id = NULL; 900 } 901 if (optarg == NULL) 902 optarg = DEFAULT_BUILD_ID_STYLE; 903 if (strcmp (optarg, "none")) 904 emit_build_id = xstrdup (optarg); 905 break; 906 } 907 908 /* Set DLLCharacteristics bits */ 909 set_pe_name ("__dll_characteristics__", pe_dll_characteristics); 910 911 return TRUE; 912} 913 914 915#ifdef DLL_SUPPORT 916static unsigned long 917strhash (const char *str) 918{ 919 const unsigned char *s; 920 unsigned long hash; 921 unsigned int c; 922 unsigned int len; 923 924 hash = 0; 925 len = 0; 926 s = (const unsigned char *) str; 927 while ((c = *s++) != '\0') 928 { 929 hash += c + (c << 17); 930 hash ^= hash >> 2; 931 ++len; 932 } 933 hash += len + (len << 17); 934 hash ^= hash >> 2; 935 936 return hash; 937} 938 939/* Use the output file to create a image base for relocatable DLLs. */ 940 941static unsigned long 942compute_dll_image_base (const char *ofile) 943{ 944 unsigned long hash = strhash (ofile); 945 return pe_auto_image_base + ((hash << 16) & 0x0FFC0000); 946} 947#endif 948 949/* Assign values to the special symbols before the linker script is 950 read. */ 951 952static void 953gld_${EMULATION_NAME}_set_symbols (void) 954{ 955 /* Run through and invent symbols for all the 956 names and insert the defaults. */ 957 int j; 958 959 is_underscoring (); 960 961 if (!init[IMAGEBASEOFF].inited) 962 { 963 if (link_info.relocatable) 964 init[IMAGEBASEOFF].value = 0; 965 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie)) 966 { 967#ifdef DLL_SUPPORT 968 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base 969 ? compute_dll_image_base (output_filename) 970 : NT_DLL_IMAGE_BASE); 971#else 972 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; 973#endif 974 } 975 else 976 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE; 977 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value; 978 } 979 980 /* Don't do any symbol assignments if this is a relocatable link. */ 981 if (link_info.relocatable) 982 return; 983 984 /* Glue the assignments into the abs section. */ 985 push_stat_ptr (&abs_output_section->children); 986 987 for (j = 0; init[j].ptr; j++) 988 { 989 long val = init[j].value; 990 lang_assignment_statement_type *rv; 991 992 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j), 993 exp_intop (val), FALSE)); 994 if (init[j].size == sizeof (short)) 995 *(short *) init[j].ptr = val; 996 else if (init[j].size == sizeof (int)) 997 *(int *) init[j].ptr = val; 998 else if (init[j].size == sizeof (long)) 999 *(long *) init[j].ptr = val; 1000 /* This might be a long long or other special type. */ 1001 else if (init[j].size == sizeof (bfd_vma)) 1002 *(bfd_vma *) init[j].ptr = val; 1003 else abort (); 1004 if (j == IMAGEBASEOFF) 1005 image_base_statement = rv; 1006 } 1007 /* Restore the pointer. */ 1008 pop_stat_ptr (); 1009 1010 if (pe.FileAlignment > pe.SectionAlignment) 1011 { 1012 einfo (_("%P: warning, file alignment > section alignment.\n")); 1013 } 1014} 1015 1016/* This is called after the linker script and the command line options 1017 have been read. */ 1018 1019static void 1020gld_${EMULATION_NAME}_after_parse (void) 1021{ 1022 /* PR ld/6744: Warn the user if they have used an ELF-only 1023 option hoping it will work on PE. */ 1024 if (link_info.export_dynamic) 1025 einfo (_("%P: warning: --export-dynamic is not supported for PE " 1026 "targets, did you mean --export-all-symbols?\n")); 1027 1028 set_entry_point (); 1029 1030 after_parse_default (); 1031} 1032 1033/* pe-dll.c directly accesses pe_data_import_dll, 1034 so it must be defined outside of #ifdef DLL_SUPPORT. 1035 Note - this variable is deliberately not initialised. 1036 This allows it to be treated as a common varaible, and only 1037 exist in one incarnation in a multiple target enabled linker. */ 1038char * pe_data_import_dll; 1039 1040#ifdef DLL_SUPPORT 1041static struct bfd_link_hash_entry *pe_undef_found_sym; 1042 1043static bfd_boolean 1044pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf) 1045{ 1046 int sl; 1047 char *string = inf; 1048 const char *hs = h->root.string; 1049 1050 sl = strlen (string); 1051 if (h->type == bfd_link_hash_defined 1052 && ((*hs == '@' && *string == '_' 1053 && strncmp (hs + 1, string + 1, sl - 1) == 0) 1054 || strncmp (hs, string, sl) == 0) 1055 && h->root.string[sl] == '@') 1056 { 1057 pe_undef_found_sym = h; 1058 return FALSE; 1059 } 1060 return TRUE; 1061} 1062 1063static void 1064pe_fixup_stdcalls (void) 1065{ 1066 static int gave_warning_message = 0; 1067 struct bfd_link_hash_entry *undef, *sym; 1068 1069 if (pe_dll_extra_pe_debug) 1070 printf ("%s\n", __FUNCTION__); 1071 1072 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) 1073 if (undef->type == bfd_link_hash_undefined) 1074 { 1075 char* at = strchr (undef->root.string, '@'); 1076 int lead_at = (*undef->root.string == '@'); 1077 if (lead_at) 1078 at = strchr (undef->root.string + 1, '@'); 1079 1080 if (at || lead_at) 1081 { 1082 /* The symbol is a stdcall symbol, so let's look for a 1083 cdecl symbol with the same name and resolve to that. */ 1084 char *cname = xstrdup (undef->root.string); 1085 1086 if (lead_at) 1087 *cname = '_'; 1088 at = strchr (cname, '@'); 1089 if (at) 1090 *at = 0; 1091 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1); 1092 1093 if (sym && sym->type == bfd_link_hash_defined) 1094 { 1095 undef->type = bfd_link_hash_defined; 1096 undef->u.def.value = sym->u.def.value; 1097 undef->u.def.section = sym->u.def.section; 1098 1099 if (pe_enable_stdcall_fixup == -1) 1100 { 1101 einfo (_("Warning: resolving %s by linking to %s\n"), 1102 undef->root.string, cname); 1103 if (! gave_warning_message) 1104 { 1105 gave_warning_message = 1; 1106 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); 1107 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); 1108 } 1109 } 1110 } 1111 } 1112 else 1113 { 1114 /* The symbol is a cdecl symbol, so we look for stdcall 1115 symbols - which means scanning the whole symbol table. */ 1116 pe_undef_found_sym = 0; 1117 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match, 1118 (char *) undef->root.string); 1119 sym = pe_undef_found_sym; 1120 if (sym) 1121 { 1122 undef->type = bfd_link_hash_defined; 1123 undef->u.def.value = sym->u.def.value; 1124 undef->u.def.section = sym->u.def.section; 1125 1126 if (pe_enable_stdcall_fixup == -1) 1127 { 1128 einfo (_("Warning: resolving %s by linking to %s\n"), 1129 undef->root.string, sym->root.string); 1130 if (! gave_warning_message) 1131 { 1132 gave_warning_message = 1; 1133 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); 1134 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); 1135 } 1136 } 1137 } 1138 } 1139 } 1140} 1141 1142static int 1143make_import_fixup (arelent *rel, asection *s) 1144{ 1145 struct bfd_symbol *sym = *rel->sym_ptr_ptr; 1146 char addend[4]; 1147 1148 if (pe_dll_extra_pe_debug) 1149 printf ("arelent: %s@%#lx: add=%li\n", sym->name, 1150 (unsigned long) rel->address, (long) rel->addend); 1151 1152 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend))) 1153 einfo (_("%C: Cannot get section contents - auto-import exception\n"), 1154 s->owner, s, rel->address); 1155 1156 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend)); 1157 1158 return 1; 1159} 1160 1161static void 1162pe_find_data_imports (void) 1163{ 1164 struct bfd_link_hash_entry *undef, *sym; 1165 1166 if (link_info.pei386_auto_import == 0) 1167 return; 1168 1169 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) 1170 { 1171 if (undef->type == bfd_link_hash_undefined) 1172 { 1173 /* C++ symbols are *long*. */ 1174 char buf[4096]; 1175 1176 if (pe_dll_extra_pe_debug) 1177 printf ("%s:%s\n", __FUNCTION__, undef->root.string); 1178 1179 sprintf (buf, "__imp_%s", undef->root.string); 1180 1181 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); 1182 1183 if (sym && sym->type == bfd_link_hash_defined) 1184 { 1185 bfd *b = sym->u.def.section->owner; 1186 asymbol **symbols; 1187 int nsyms, i; 1188 1189 if (link_info.pei386_auto_import == -1) 1190 { 1191 static bfd_boolean warned = FALSE; 1192 1193 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"), 1194 undef->root.string, buf); 1195 1196 /* PR linker/4844. */ 1197 if (! warned) 1198 { 1199 warned = TRUE; 1200 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\ 1201This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n")); 1202 } 1203 } 1204 1205 if (!bfd_generic_link_read_symbols (b)) 1206 { 1207 einfo (_("%B%F: could not read symbols: %E\n"), b); 1208 return; 1209 } 1210 1211 symbols = bfd_get_outsymbols (b); 1212 nsyms = bfd_get_symcount (b); 1213 1214 for (i = 0; i < nsyms; i++) 1215 { 1216 if (! CONST_STRNEQ (symbols[i]->name, 1217 U ("_head_"))) 1218 continue; 1219 1220 if (pe_dll_extra_pe_debug) 1221 printf ("->%s\n", symbols[i]->name); 1222 1223 pe_data_import_dll = (char *) (symbols[i]->name 1224 + U_SIZE ("_head_") - 1); 1225 break; 1226 } 1227 1228 pe_walk_relocs_of_symbol (&link_info, undef->root.string, 1229 make_import_fixup); 1230 1231 /* Let's differentiate it somehow from defined. */ 1232 undef->type = bfd_link_hash_defweak; 1233 /* We replace original name with __imp_ prefixed, this 1234 1) may trash memory 2) leads to duplicate symbol generation. 1235 Still, IMHO it's better than having name poluted. */ 1236 undef->root.string = sym->root.string; 1237 undef->u.def.value = sym->u.def.value; 1238 undef->u.def.section = sym->u.def.section; 1239 } 1240 } 1241 } 1242} 1243 1244static bfd_boolean 1245pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED) 1246{ 1247 printf ("+%s\n", h->string); 1248 1249 return TRUE; 1250} 1251#endif /* DLL_SUPPORT */ 1252 1253static void 1254debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj) 1255{ 1256 int *found = (int *) obj; 1257 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0) 1258 *found = 1; 1259} 1260 1261static bfd_boolean 1262pecoff_checksum_contents (bfd *abfd, 1263 void (*process) (const void *, size_t, void *), 1264 void *arg) 1265{ 1266 file_ptr filepos = (file_ptr) 0; 1267 1268 while (1) 1269 { 1270 unsigned char b; 1271 int status; 1272 1273 if (bfd_seek (abfd, filepos, SEEK_SET) != 0) 1274 return 0; 1275 1276 status = bfd_bread (&b, (bfd_size_type) 1, abfd); 1277 if (status < 1) 1278 { 1279 break; 1280 } 1281 1282 (*process) (&b, 1, arg); 1283 filepos += 1; 1284 } 1285 1286 return TRUE; 1287} 1288 1289static bfd_boolean 1290write_build_id (bfd *abfd) 1291{ 1292 struct pe_tdata *t = pe_data (abfd); 1293 asection *asec; 1294 struct bfd_link_order *link_order = NULL; 1295 unsigned char *contents; 1296 bfd_size_type size; 1297 bfd_size_type build_id_size; 1298 unsigned char *build_id; 1299 1300 /* Find the section the .buildid output section has been merged info. */ 1301 for (asec = abfd->sections; asec != NULL; asec = asec->next) 1302 { 1303 struct bfd_link_order *l = NULL; 1304 for (l = asec->map_head.link_order; l != NULL; l = l->next) 1305 { 1306 if ((l->type == bfd_indirect_link_order)) 1307 { 1308 if (l->u.indirect.section == t->build_id.sec) 1309 { 1310 link_order = l; 1311 break; 1312 } 1313 } 1314 } 1315 1316 if (link_order) 1317 break; 1318 } 1319 1320 if (!link_order) 1321 { 1322 einfo (_("%P: warning: .buildid section discarded," 1323 " --build-id ignored.\n")); 1324 return TRUE; 1325 } 1326 1327 if (t->build_id.sec->contents == NULL) 1328 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size); 1329 contents = t->build_id.sec->contents; 1330 size = t->build_id.sec->size; 1331 1332 build_id_size = compute_build_id_size (t->build_id.style); 1333 build_id = xmalloc (build_id_size); 1334 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size); 1335 1336 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase; 1337 1338 /* Construct a debug directory entry which points to an immediately following CodeView record. */ 1339 struct internal_IMAGE_DEBUG_DIRECTORY idd; 1340 idd.Characteristics = 0; 1341 idd.TimeDateStamp = 0; 1342 idd.MajorVersion = 0; 1343 idd.MinorVersion = 0; 1344 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW; 1345 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1; 1346 idd.AddressOfRawData = asec->vma - ib + link_order->offset 1347 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY); 1348 idd.PointerToRawData = asec->filepos + link_order->offset 1349 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY); 1350 1351 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents; 1352 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext); 1353 1354 /* Write the debug directory entry. */ 1355 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0) 1356 return 0; 1357 1358 if ((bfd_bwrite (contents, size, abfd) != size)) 1359 return 0; 1360 1361 /* Construct the CodeView record. */ 1362 CODEVIEW_INFO cvinfo; 1363 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE; 1364 cvinfo.Age = 1; 1365 1366 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */ 1367 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH); 1368 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH) 1369 ? CV_INFO_SIGNATURE_LENGTH : build_id_size); 1370 1371 free (build_id); 1372 1373 /* Write the codeview record. */ 1374 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0) 1375 return 0; 1376 1377 /* Record the location of the debug directory in the data directory. */ 1378 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress 1379 = asec->vma - ib + link_order->offset; 1380 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size 1381 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY); 1382 1383 return TRUE; 1384} 1385 1386/* Make .buildid section, and set up coff_tdata->build_id. */ 1387static bfd_boolean 1388setup_build_id (bfd *ibfd) 1389{ 1390 asection *s; 1391 flagword flags; 1392 1393 if (!validate_build_id_style (emit_build_id)) 1394 { 1395 einfo ("%P: warning: unrecognized --build-id style ignored.\n"); 1396 return FALSE; 1397 } 1398 1399 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY 1400 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA); 1401 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags); 1402 if (s != NULL) 1403 { 1404 struct pe_tdata *t = pe_data (link_info.output_bfd); 1405 t->build_id.after_write_object_contents = &write_build_id; 1406 t->build_id.style = emit_build_id; 1407 t->build_id.sec = s; 1408 1409 /* Section is a fixed size: 1410 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW, 1411 pointing at a CV_INFO_PDB70 record containing the build-id, with a 1412 null byte for PdbFileName. */ 1413 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY) 1414 + sizeof (CV_INFO_PDB70) + 1; 1415 1416 return TRUE; 1417 } 1418 1419 einfo ("%P: warning: Cannot create .buildid section," 1420 " --build-id ignored.\n"); 1421 return FALSE; 1422} 1423 1424static void 1425gld_${EMULATION_NAME}_after_open (void) 1426{ 1427 after_open_default (); 1428 1429#ifdef DLL_SUPPORT 1430 if (pe_dll_extra_pe_debug) 1431 { 1432 bfd *a; 1433 struct bfd_link_hash_entry *sym; 1434 1435 printf ("%s()\n", __FUNCTION__); 1436 1437 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next) 1438 printf ("-%s\n", sym->root.string); 1439 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL); 1440 1441 for (a = link_info.input_bfds; a; a = a->link.next) 1442 printf ("*%s\n",a->filename); 1443 } 1444#endif 1445 1446 if (emit_build_id != NULL) 1447 { 1448 bfd *abfd; 1449 1450 /* Find a COFF input. */ 1451 for (abfd = link_info.input_bfds; 1452 abfd != (bfd *) NULL; abfd = abfd->link.next) 1453 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour) 1454 break; 1455 1456 /* If there are no COFF input files do not try to 1457 add a build-id section. */ 1458 if (abfd == NULL 1459 || !setup_build_id (abfd)) 1460 { 1461 free ((char *) emit_build_id); 1462 emit_build_id = NULL; 1463 } 1464 } 1465 1466 /* Pass the wacky PE command line options into the output bfd. 1467 FIXME: This should be done via a function, rather than by 1468 including an internal BFD header. */ 1469 1470 if (coff_data (link_info.output_bfd) == NULL 1471 || coff_data (link_info.output_bfd)->pe == 0) 1472 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"), 1473 link_info.output_bfd); 1474 1475 pe_data (link_info.output_bfd)->pe_opthdr = pe; 1476 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value; 1477 pe_data (link_info.output_bfd)->real_flags |= real_flags; 1478 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp; 1479 1480 /* At this point we must decide whether to use long section names 1481 in the output or not. If the user hasn't explicitly specified 1482 on the command line, we leave it to the default for the format 1483 (object files yes, image files no), except if there is debug 1484 information present; GDB relies on the long section names to 1485 find it, so enable it in that case. */ 1486 if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none) 1487 { 1488 if (link_info.relocatable) 1489 pe_use_coff_long_section_names = 1; 1490 else 1491 { 1492 /* Iterate over all sections of all input BFDs, checking 1493 for any that begin 'debug_' and are long names. */ 1494 LANG_FOR_EACH_INPUT_STATEMENT (is) 1495 { 1496 int found_debug = 0; 1497 1498 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug); 1499 if (found_debug) 1500 { 1501 pe_use_coff_long_section_names = 1; 1502 break; 1503 } 1504 } 1505 } 1506 } 1507 1508 pe_output_file_set_long_section_names (link_info.output_bfd); 1509 1510#ifdef DLL_SUPPORT 1511 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */ 1512 pe_fixup_stdcalls (); 1513 1514 pe_process_import_defs (link_info.output_bfd, &link_info); 1515 1516 pe_find_data_imports (); 1517 1518 /* As possibly new symbols are added by imports, we rerun 1519 stdcall/fastcall fixup here. */ 1520 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */ 1521 pe_fixup_stdcalls (); 1522 1523#if defined (TARGET_IS_i386pe) \ 1524 || defined (TARGET_IS_armpe) \ 1525 || defined (TARGET_IS_arm_epoc_pe) \ 1526 || defined (TARGET_IS_arm_wince_pe) 1527 if (!link_info.relocatable) 1528 pe_dll_build_sections (link_info.output_bfd, &link_info); 1529#else 1530 if (link_info.shared) 1531 pe_dll_build_sections (link_info.output_bfd, &link_info); 1532 else 1533 pe_exe_build_sections (link_info.output_bfd, &link_info); 1534#endif 1535#endif /* DLL_SUPPORT */ 1536 1537#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) 1538 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL) 1539 { 1540 /* The arm backend needs special fields in the output hash structure. 1541 These will only be created if the output format is an arm format, 1542 hence we do not support linking and changing output formats at the 1543 same time. Use a link followed by objcopy to change output formats. */ 1544 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n"); 1545 return; 1546 } 1547 { 1548 /* Find a BFD that can hold the interworking stubs. */ 1549 LANG_FOR_EACH_INPUT_STATEMENT (is) 1550 { 1551 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info)) 1552 break; 1553 } 1554 } 1555#endif 1556 1557 { 1558 /* This next chunk of code tries to detect the case where you have 1559 two import libraries for the same DLL (specifically, 1560 symbolically linking libm.a and libc.a in cygwin to 1561 libcygwin.a). In those cases, it's possible for function 1562 thunks from the second implib to be used but without the 1563 head/tail objects, causing an improper import table. We detect 1564 those cases and rename the "other" import libraries to match 1565 the one the head/tail come from, so that the linker will sort 1566 things nicely and produce a valid import table. */ 1567 1568 LANG_FOR_EACH_INPUT_STATEMENT (is) 1569 { 1570 if (is->the_bfd->my_archive) 1571 { 1572 int idata2 = 0, reloc_count=0, is_imp = 0; 1573 asection *sec; 1574 1575 /* See if this is an import library thunk. */ 1576 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1577 { 1578 if (strcmp (sec->name, ".idata\$2") == 0) 1579 idata2 = 1; 1580 if (CONST_STRNEQ (sec->name, ".idata\$")) 1581 is_imp = 1; 1582 reloc_count += sec->reloc_count; 1583 } 1584 1585 if (is_imp && !idata2 && reloc_count) 1586 { 1587 /* It is, look for the reference to head and see if it's 1588 from our own library. */ 1589 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1590 { 1591 int i; 1592 long relsize; 1593 asymbol **symbols; 1594 arelent **relocs; 1595 int nrelocs; 1596 1597 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec); 1598 if (relsize < 1) 1599 break; 1600 1601 if (!bfd_generic_link_read_symbols (is->the_bfd)) 1602 { 1603 einfo (_("%B%F: could not read symbols: %E\n"), 1604 is->the_bfd); 1605 return; 1606 } 1607 symbols = bfd_get_outsymbols (is->the_bfd); 1608 1609 relocs = xmalloc ((size_t) relsize); 1610 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec, 1611 relocs, symbols); 1612 if (nrelocs < 0) 1613 { 1614 free (relocs); 1615 einfo ("%X%P: unable to process relocs: %E\n"); 1616 return; 1617 } 1618 1619 for (i = 0; i < nrelocs; i++) 1620 { 1621 struct bfd_symbol *s; 1622 struct bfd_link_hash_entry * blhe; 1623 char *other_bfd_filename; 1624 char *n; 1625 1626 s = (relocs[i]->sym_ptr_ptr)[0]; 1627 1628 if (s->flags & BSF_LOCAL) 1629 continue; 1630 1631 /* Thunk section with reloc to another bfd. */ 1632 blhe = bfd_link_hash_lookup (link_info.hash, 1633 s->name, 1634 FALSE, FALSE, TRUE); 1635 1636 if (blhe == NULL 1637 || blhe->type != bfd_link_hash_defined) 1638 continue; 1639 1640 other_bfd_filename 1641 = blhe->u.def.section->owner->my_archive 1642 ? bfd_get_filename (blhe->u.def.section->owner->my_archive) 1643 : bfd_get_filename (blhe->u.def.section->owner); 1644 1645 if (filename_cmp (bfd_get_filename 1646 (is->the_bfd->my_archive), 1647 other_bfd_filename) == 0) 1648 continue; 1649 1650 /* Rename this implib to match the other one. */ 1651 n = xmalloc (strlen (other_bfd_filename) + 1); 1652 strcpy (n, other_bfd_filename); 1653 is->the_bfd->my_archive->filename = n; 1654 } 1655 1656 free (relocs); 1657 /* Note - we do not free the symbols, 1658 they are now cached in the BFD. */ 1659 } 1660 } 1661 } 1662 } 1663 } 1664 1665 { 1666 int is_ms_arch = 0; 1667 bfd *cur_arch = 0; 1668 lang_input_statement_type *is2; 1669 lang_input_statement_type *is3; 1670 1671 /* Careful - this is a shell script. Watch those dollar signs! */ 1672 /* Microsoft import libraries have every member named the same, 1673 and not in the right order for us to link them correctly. We 1674 must detect these and rename the members so that they'll link 1675 correctly. There are three types of objects: the head, the 1676 thunks, and the sentinel(s). The head is easy; it's the one 1677 with idata2. We assume that the sentinels won't have relocs, 1678 and the thunks will. It's easier than checking the symbol 1679 table for external references. */ 1680 LANG_FOR_EACH_INPUT_STATEMENT (is) 1681 { 1682 if (is->the_bfd->my_archive) 1683 { 1684 char *pnt; 1685 bfd *arch = is->the_bfd->my_archive; 1686 1687 if (cur_arch != arch) 1688 { 1689 cur_arch = arch; 1690 is_ms_arch = 1; 1691 1692 for (is3 = is; 1693 is3 && is3->the_bfd->my_archive == arch; 1694 is3 = (lang_input_statement_type *) is3->next) 1695 { 1696 /* A MS dynamic import library can also contain static 1697 members, so look for the first element with a .dll 1698 extension, and use that for the remainder of the 1699 comparisons. */ 1700 pnt = strrchr (is3->the_bfd->filename, '.'); 1701 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0) 1702 break; 1703 } 1704 1705 if (is3 == NULL) 1706 is_ms_arch = 0; 1707 else 1708 { 1709 /* OK, found one. Now look to see if the remaining 1710 (dynamic import) members use the same name. */ 1711 for (is2 = is; 1712 is2 && is2->the_bfd->my_archive == arch; 1713 is2 = (lang_input_statement_type *) is2->next) 1714 { 1715 /* Skip static members, ie anything with a .obj 1716 extension. */ 1717 pnt = strrchr (is2->the_bfd->filename, '.'); 1718 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0) 1719 continue; 1720 1721 if (filename_cmp (is3->the_bfd->filename, 1722 is2->the_bfd->filename)) 1723 { 1724 is_ms_arch = 0; 1725 break; 1726 } 1727 } 1728 } 1729 } 1730 1731 /* This fragment might have come from an .obj file in a Microsoft 1732 import, and not an actual import record. If this is the case, 1733 then leave the filename alone. */ 1734 pnt = strrchr (is->the_bfd->filename, '.'); 1735 1736 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0)) 1737 { 1738 int idata2 = 0, reloc_count=0; 1739 asection *sec; 1740 char *new_name, seq; 1741 1742 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1743 { 1744 if (strcmp (sec->name, ".idata\$2") == 0) 1745 idata2 = 1; 1746 reloc_count += sec->reloc_count; 1747 } 1748 1749 if (idata2) /* .idata2 is the TOC */ 1750 seq = 'a'; 1751 else if (reloc_count > 0) /* thunks */ 1752 seq = 'b'; 1753 else /* sentinel */ 1754 seq = 'c'; 1755 1756 new_name = xmalloc (strlen (is->the_bfd->filename) + 3); 1757 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq); 1758 is->the_bfd->filename = new_name; 1759 1760 new_name = xmalloc (strlen (is->filename) + 3); 1761 sprintf (new_name, "%s.%c", is->filename, seq); 1762 is->filename = new_name; 1763 } 1764 } 1765 } 1766 } 1767 1768 { 1769 /* The following chunk of code tries to identify jump stubs in 1770 import libraries which are dead code and eliminates them 1771 from the final link. For each exported symbol <sym>, there 1772 is a object file in the import library with a .text section 1773 and several .idata\$* sections. The .text section contains the 1774 symbol definition for <sym> which is a jump stub of the form 1775 jmp *__imp_<sym>. The .idata\$5 contains the symbol definition 1776 for __imp_<sym> which is the address of the slot for <sym> in 1777 the import address table. When a symbol is imported explicitly 1778 using __declspec(dllimport) declaration, the compiler generates 1779 a reference to __imp_<sym> which directly resolves to the 1780 symbol in .idata\$5, in which case the jump stub code is not 1781 needed. The following code tries to identify jump stub sections 1782 in import libraries which are not referred to by anyone and 1783 marks them for exclusion from the final link. */ 1784 LANG_FOR_EACH_INPUT_STATEMENT (is) 1785 { 1786 if (is->the_bfd->my_archive) 1787 { 1788 int is_imp = 0; 1789 asection *sec, *stub_sec = NULL; 1790 1791 /* See if this is an import library thunk. */ 1792 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1793 { 1794 if (strncmp (sec->name, ".idata\$", 7) == 0) 1795 is_imp = 1; 1796 /* The section containing the jmp stub has code 1797 and has a reloc. */ 1798 if ((sec->flags & SEC_CODE) && sec->reloc_count) 1799 stub_sec = sec; 1800 } 1801 1802 if (is_imp && stub_sec) 1803 { 1804 asymbol **symbols; 1805 long nsyms, src_count; 1806 struct bfd_link_hash_entry * blhe; 1807 1808 if (!bfd_generic_link_read_symbols (is->the_bfd)) 1809 { 1810 einfo (_("%B%F: could not read symbols: %E\n"), 1811 is->the_bfd); 1812 return; 1813 } 1814 symbols = bfd_get_outsymbols (is->the_bfd); 1815 nsyms = bfd_get_symcount (is->the_bfd); 1816 1817 for (src_count = 0; src_count < nsyms; src_count++) 1818 { 1819 if (symbols[src_count]->section->id == stub_sec->id) 1820 { 1821 /* This symbol belongs to the section containing 1822 the stub. */ 1823 blhe = bfd_link_hash_lookup (link_info.hash, 1824 symbols[src_count]->name, 1825 FALSE, FALSE, TRUE); 1826 /* If the symbol in the stub section has no other 1827 undefined references, exclude the stub section 1828 from the final link. */ 1829 if (blhe != NULL 1830 && blhe->type == bfd_link_hash_defined 1831 && blhe->u.undef.next == NULL 1832 && blhe != link_info.hash->undefs_tail) 1833 stub_sec->flags |= SEC_EXCLUDE; 1834 } 1835 } 1836 } 1837 } 1838 } 1839 } 1840} 1841 1842static void 1843gld_${EMULATION_NAME}_before_allocation (void) 1844{ 1845#ifdef TARGET_IS_ppcpe 1846 /* Here we rummage through the found bfds to collect toc information. */ 1847 { 1848 LANG_FOR_EACH_INPUT_STATEMENT (is) 1849 { 1850 if (!ppc_process_before_allocation (is->the_bfd, &link_info)) 1851 { 1852 /* xgettext:c-format */ 1853 einfo (_("Errors encountered processing file %s\n"), is->filename); 1854 } 1855 } 1856 } 1857 1858 /* We have seen it all. Allocate it, and carry on. */ 1859 ppc_allocate_toc_section (&link_info); 1860#endif /* TARGET_IS_ppcpe */ 1861 1862#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) 1863 /* FIXME: we should be able to set the size of the interworking stub 1864 section. 1865 1866 Here we rummage through the found bfds to collect glue 1867 information. FIXME: should this be based on a command line 1868 option? krk@cygnus.com. */ 1869 { 1870 LANG_FOR_EACH_INPUT_STATEMENT (is) 1871 { 1872 if (! bfd_arm_process_before_allocation 1873 (is->the_bfd, & link_info, support_old_code)) 1874 { 1875 /* xgettext:c-format */ 1876 einfo (_("Errors encountered processing file %s for interworking\n"), 1877 is->filename); 1878 } 1879 } 1880 } 1881 1882 /* We have seen it all. Allocate it, and carry on. */ 1883 bfd_arm_allocate_interworking_sections (& link_info); 1884#endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */ 1885 1886 before_allocation_default (); 1887} 1888 1889#ifdef DLL_SUPPORT 1890/* This is called when an input file isn't recognized as a BFD. We 1891 check here for .DEF files and pull them in automatically. */ 1892 1893static int 1894saw_option (char *option) 1895{ 1896 int i; 1897 1898 for (i = 0; init[i].ptr; i++) 1899 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0) 1900 return init[i].inited; 1901 return 0; 1902} 1903#endif /* DLL_SUPPORT */ 1904 1905static bfd_boolean 1906gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) 1907{ 1908#ifdef DLL_SUPPORT 1909 const char *ext = entry->filename + strlen (entry->filename) - 4; 1910 1911 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0) 1912 { 1913 pe_def_file = def_file_parse (entry->filename, pe_def_file); 1914 1915 if (pe_def_file) 1916 { 1917 int i, buflen=0, len; 1918 char *buf; 1919 1920 for (i = 0; i < pe_def_file->num_exports; i++) 1921 { 1922 len = strlen (pe_def_file->exports[i].internal_name); 1923 if (buflen < len + 2) 1924 buflen = len + 2; 1925 } 1926 1927 buf = xmalloc (buflen); 1928 1929 for (i = 0; i < pe_def_file->num_exports; i++) 1930 { 1931 struct bfd_link_hash_entry *h; 1932 1933 sprintf (buf, "%s%s", U (""), 1934 pe_def_file->exports[i].internal_name); 1935 1936 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE); 1937 if (h == (struct bfd_link_hash_entry *) NULL) 1938 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); 1939 if (h->type == bfd_link_hash_new) 1940 { 1941 h->type = bfd_link_hash_undefined; 1942 h->u.undef.abfd = NULL; 1943 bfd_link_add_undef (link_info.hash, h); 1944 } 1945 } 1946 free (buf); 1947 1948 /* def_file_print (stdout, pe_def_file); */ 1949 if (pe_def_file->is_dll == 1) 1950 link_info.shared = 1; 1951 1952 if (pe_def_file->base_address != (bfd_vma)(-1)) 1953 { 1954 pe.ImageBase 1955 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase 1956 = init[IMAGEBASEOFF].value 1957 = pe_def_file->base_address; 1958 init[IMAGEBASEOFF].inited = 1; 1959 if (image_base_statement) 1960 image_base_statement->exp 1961 = exp_assign ("__image_base__", exp_intop (pe.ImageBase), 1962 FALSE); 1963 } 1964 1965 if (pe_def_file->stack_reserve != -1 1966 && ! saw_option ("__size_of_stack_reserve__")) 1967 { 1968 pe.SizeOfStackReserve = pe_def_file->stack_reserve; 1969 if (pe_def_file->stack_commit != -1) 1970 pe.SizeOfStackCommit = pe_def_file->stack_commit; 1971 } 1972 if (pe_def_file->heap_reserve != -1 1973 && ! saw_option ("__size_of_heap_reserve__")) 1974 { 1975 pe.SizeOfHeapReserve = pe_def_file->heap_reserve; 1976 if (pe_def_file->heap_commit != -1) 1977 pe.SizeOfHeapCommit = pe_def_file->heap_commit; 1978 } 1979 return TRUE; 1980 } 1981 } 1982#endif 1983 return FALSE; 1984} 1985 1986static bfd_boolean 1987gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) 1988{ 1989#ifdef DLL_SUPPORT 1990#ifdef TARGET_IS_i386pe 1991 pe_dll_id_target ("pei-i386"); 1992#endif 1993#ifdef TARGET_IS_shpe 1994 pe_dll_id_target ("pei-shl"); 1995#endif 1996#ifdef TARGET_IS_armpe 1997 pe_dll_id_target ("pei-arm-little"); 1998#endif 1999#ifdef TARGET_IS_arm_epoc_pe 2000 pe_dll_id_target ("epoc-pei-arm-little"); 2001#endif 2002#ifdef TARGET_IS_arm_wince_pe 2003 pe_dll_id_target ("pei-arm-wince-little"); 2004#endif 2005 if (pe_bfd_is_dll (entry->the_bfd)) 2006 return pe_implied_import_dll (entry->filename); 2007#endif 2008 return FALSE; 2009} 2010 2011static void 2012gld_${EMULATION_NAME}_finish (void) 2013{ 2014#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) 2015 struct bfd_link_hash_entry * h; 2016 2017 if (thumb_entry_symbol != NULL) 2018 { 2019 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, 2020 FALSE, FALSE, TRUE); 2021 2022 if (h != (struct bfd_link_hash_entry *) NULL 2023 && (h->type == bfd_link_hash_defined 2024 || h->type == bfd_link_hash_defweak) 2025 && h->u.def.section->output_section != NULL) 2026 { 2027 static char buffer[32]; 2028 bfd_vma val; 2029 2030 /* Special procesing is required for a Thumb entry symbol. The 2031 bottom bit of its address must be set. */ 2032 val = (h->u.def.value 2033 + bfd_get_section_vma (link_info.output_bfd, 2034 h->u.def.section->output_section) 2035 + h->u.def.section->output_offset); 2036 2037 val |= 1; 2038 2039 /* Now convert this value into a string and store it in entry_symbol 2040 where the lang_finish() function will pick it up. */ 2041 buffer[0] = '0'; 2042 buffer[1] = 'x'; 2043 2044 sprintf_vma (buffer + 2, val); 2045 2046 if (entry_symbol.name != NULL && entry_from_cmdline) 2047 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"), 2048 thumb_entry_symbol, entry_symbol.name); 2049 entry_symbol.name = buffer; 2050 } 2051 else 2052 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol); 2053 } 2054#endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */ 2055 2056 finish_default (); 2057 2058#ifdef DLL_SUPPORT 2059 if (link_info.shared 2060#if !defined(TARGET_IS_shpe) 2061 || (!link_info.relocatable && pe_def_file->num_exports != 0) 2062#endif 2063 ) 2064 { 2065 pe_dll_fill_sections (link_info.output_bfd, &link_info); 2066 if (pe_implib_filename) 2067 pe_dll_generate_implib (pe_def_file, pe_implib_filename, &link_info); 2068 } 2069#if defined(TARGET_IS_shpe) 2070 /* ARM doesn't need relocs. */ 2071 else 2072 { 2073 pe_exe_fill_sections (link_info.output_bfd, &link_info); 2074 } 2075#endif 2076 2077 if (pe_out_def_filename) 2078 pe_dll_generate_def_file (pe_out_def_filename); 2079#endif /* DLL_SUPPORT */ 2080 2081 /* I don't know where .idata gets set as code, but it shouldn't be. */ 2082 { 2083 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata"); 2084 2085 if (asec) 2086 { 2087 asec->flags &= ~SEC_CODE; 2088 asec->flags |= SEC_DATA; 2089 } 2090 } 2091} 2092 2093 2094/* Place an orphan section. 2095 2096 We use this to put sections in a reasonable place in the file, and 2097 to ensure that they are aligned as required. 2098 2099 We handle grouped sections here as well. A section named .foo\$nn 2100 goes into the output section .foo. All grouped sections are sorted 2101 by name. 2102 2103 Grouped sections for the default sections are handled by the 2104 default linker script using wildcards, and are sorted by 2105 sort_sections. */ 2106 2107static lang_output_section_statement_type * 2108gld_${EMULATION_NAME}_place_orphan (asection *s, 2109 const char *secname, 2110 int constraint) 2111{ 2112 const char *orig_secname = secname; 2113 char *dollar = NULL; 2114 lang_output_section_statement_type *os; 2115 lang_statement_list_type add_child; 2116 lang_output_section_statement_type *match_by_name = NULL; 2117 lang_statement_union_type **pl; 2118 2119 /* Look through the script to see where to place this section. */ 2120 if (!link_info.relocatable 2121 && (dollar = strchr (secname, '\$')) != NULL) 2122 { 2123 size_t len = dollar - secname; 2124 char *newname = xmalloc (len + 1); 2125 memcpy (newname, secname, len); 2126 newname[len] = '\0'; 2127 secname = newname; 2128 } 2129 2130 lang_list_init (&add_child); 2131 2132 os = NULL; 2133 if (constraint == 0) 2134 for (os = lang_output_section_find (secname); 2135 os != NULL; 2136 os = next_matching_output_section_statement (os, 0)) 2137 { 2138 /* If we don't match an existing output section, tell 2139 lang_insert_orphan to create a new output section. */ 2140 constraint = SPECIAL; 2141 2142 if (os->bfd_section != NULL 2143 && (os->bfd_section->flags == 0 2144 || ((s->flags ^ os->bfd_section->flags) 2145 & (SEC_LOAD | SEC_ALLOC)) == 0)) 2146 { 2147 /* We already have an output section statement with this 2148 name, and its bfd section has compatible flags. 2149 If the section already exists but does not have any flags set, 2150 then it has been created by the linker, probably as a result of 2151 a --section-start command line switch. */ 2152 lang_add_section (&add_child, s, NULL, os); 2153 break; 2154 } 2155 2156 /* Save unused output sections in case we can match them 2157 against orphans later. */ 2158 if (os->bfd_section == NULL) 2159 match_by_name = os; 2160 } 2161 2162 /* If we didn't match an active output section, see if we matched an 2163 unused one and use that. */ 2164 if (os == NULL && match_by_name) 2165 { 2166 lang_add_section (&match_by_name->children, s, NULL, match_by_name); 2167 return match_by_name; 2168 } 2169 2170 if (os == NULL) 2171 { 2172 static struct orphan_save hold[] = 2173 { 2174 { ".text", 2175 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, 2176 0, 0, 0, 0 }, 2177 { ".idata", 2178 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, 2179 0, 0, 0, 0 }, 2180 { ".rdata", 2181 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, 2182 0, 0, 0, 0 }, 2183 { ".data", 2184 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, 2185 0, 0, 0, 0 }, 2186 { ".bss", 2187 SEC_ALLOC, 2188 0, 0, 0, 0 } 2189 }; 2190 enum orphan_save_index 2191 { 2192 orphan_text = 0, 2193 orphan_idata, 2194 orphan_rodata, 2195 orphan_data, 2196 orphan_bss 2197 }; 2198 static int orphan_init_done = 0; 2199 struct orphan_save *place; 2200 lang_output_section_statement_type *after; 2201 etree_type *address; 2202 2203 if (!orphan_init_done) 2204 { 2205 struct orphan_save *ho; 2206 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) 2207 if (ho->name != NULL) 2208 { 2209 ho->os = lang_output_section_find (ho->name); 2210 if (ho->os != NULL && ho->os->flags == 0) 2211 ho->os->flags = ho->flags; 2212 } 2213 orphan_init_done = 1; 2214 } 2215 2216 /* Try to put the new output section in a reasonable place based 2217 on the section name and section flags. */ 2218 2219 place = NULL; 2220 if ((s->flags & SEC_ALLOC) == 0) 2221 ; 2222 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) 2223 place = &hold[orphan_bss]; 2224 else if ((s->flags & SEC_READONLY) == 0) 2225 place = &hold[orphan_data]; 2226 else if ((s->flags & SEC_CODE) == 0) 2227 { 2228 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata] 2229 : &hold[orphan_rodata]); 2230 } 2231 else 2232 place = &hold[orphan_text]; 2233 2234 after = NULL; 2235 if (place != NULL) 2236 { 2237 if (place->os == NULL) 2238 place->os = lang_output_section_find (place->name); 2239 after = place->os; 2240 if (after == NULL) 2241 after = lang_output_section_find_by_flags (s, &place->os, NULL); 2242 if (after == NULL) 2243 /* *ABS* is always the first output section statement. */ 2244 after = (&lang_output_section_statement.head 2245 ->output_section_statement); 2246 } 2247 2248 /* All sections in an executable must be aligned to a page boundary. 2249 In a relocatable link, just preserve the incoming alignment; the 2250 address is discarded by lang_insert_orphan in that case, anyway. */ 2251 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__")); 2252 os = lang_insert_orphan (s, secname, constraint, after, place, address, 2253 &add_child); 2254 if (link_info.relocatable) 2255 { 2256 os->section_alignment = s->alignment_power; 2257 os->bfd_section->alignment_power = s->alignment_power; 2258 } 2259 } 2260 2261 /* If the section name has a '\$', sort it with the other '\$' 2262 sections. */ 2263 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next) 2264 { 2265 lang_input_section_type *ls; 2266 const char *lname; 2267 2268 if ((*pl)->header.type != lang_input_section_enum) 2269 continue; 2270 2271 ls = &(*pl)->input_section; 2272 2273 lname = bfd_get_section_name (ls->section->owner, ls->section); 2274 if (strchr (lname, '\$') != NULL 2275 && (dollar == NULL || strcmp (orig_secname, lname) < 0)) 2276 break; 2277 } 2278 2279 if (add_child.head != NULL) 2280 { 2281 *add_child.tail = *pl; 2282 *pl = add_child.head; 2283 } 2284 2285 return os; 2286} 2287 2288static bfd_boolean 2289gld_${EMULATION_NAME}_open_dynamic_archive 2290 (const char *arch ATTRIBUTE_UNUSED, 2291 search_dirs_type *search, 2292 lang_input_statement_type *entry) 2293{ 2294 static const struct 2295 { 2296 const char * format; 2297 bfd_boolean use_prefix; 2298 } 2299 libname_fmt [] = 2300 { 2301 /* Preferred explicit import library for dll's. */ 2302 { "lib%s.dll.a", FALSE }, 2303 /* Alternate explicit import library for dll's. */ 2304 { "%s.dll.a", FALSE }, 2305 /* "libfoo.a" could be either an import lib or a static lib. 2306 For backwards compatibility, libfoo.a needs to precede 2307 libfoo.dll and foo.dll in the search. */ 2308 { "lib%s.a", FALSE }, 2309 /* The 'native' spelling of an import lib name is "foo.lib". */ 2310 { "%s.lib", FALSE }, 2311#ifdef DLL_SUPPORT 2312 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */ 2313 { "%s%s.dll", TRUE }, 2314#endif 2315 /* Try "libfoo.dll" (default preferred dll name). */ 2316 { "lib%s.dll", FALSE }, 2317 /* Finally try 'native' dll name "foo.dll". */ 2318 { "%s.dll", FALSE }, 2319 /* Note: If adding more formats to this table, make sure to check to 2320 see if their length is longer than libname_fmt[0].format, and if 2321 so, update the call to xmalloc() below. */ 2322 { NULL, FALSE } 2323 }; 2324 static unsigned int format_max_len = 0; 2325 const char * filename; 2326 char * full_string; 2327 char * base_string; 2328 unsigned int i; 2329 2330 2331 if (! entry->flags.maybe_archive || entry->flags.full_name_provided) 2332 return FALSE; 2333 2334 filename = entry->filename; 2335 2336 if (format_max_len == 0) 2337 /* We need to allow space in the memory that we are going to allocate 2338 for the characters in the format string. Since the format array is 2339 static we only need to calculate this information once. In theory 2340 this value could also be computed statically, but this introduces 2341 the possibility for a discrepancy and hence a possible memory 2342 corruption. The lengths we compute here will be too long because 2343 they will include any formating characters (%s) in the strings, but 2344 this will not matter. */ 2345 for (i = 0; libname_fmt[i].format; i++) 2346 if (format_max_len < strlen (libname_fmt[i].format)) 2347 format_max_len = strlen (libname_fmt[i].format); 2348 2349 full_string = xmalloc (strlen (search->name) 2350 + strlen (filename) 2351 + format_max_len 2352#ifdef DLL_SUPPORT 2353 + (pe_dll_search_prefix 2354 ? strlen (pe_dll_search_prefix) : 0) 2355#endif 2356 /* Allow for the terminating NUL and for the path 2357 separator character that is inserted between 2358 search->name and the start of the format string. */ 2359 + 2); 2360 2361 sprintf (full_string, "%s/", search->name); 2362 base_string = full_string + strlen (full_string); 2363 2364 for (i = 0; libname_fmt[i].format; i++) 2365 { 2366#ifdef DLL_SUPPORT 2367 if (libname_fmt[i].use_prefix) 2368 { 2369 if (!pe_dll_search_prefix) 2370 continue; 2371 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename); 2372 } 2373 else 2374#endif 2375 sprintf (base_string, libname_fmt[i].format, filename); 2376 2377 if (ldfile_try_open_bfd (full_string, entry)) 2378 break; 2379 } 2380 2381 if (!libname_fmt[i].format) 2382 { 2383 free (full_string); 2384 return FALSE; 2385 } 2386 2387 entry->filename = full_string; 2388 2389 return TRUE; 2390} 2391 2392static int 2393gld_${EMULATION_NAME}_find_potential_libraries 2394 (char *name, lang_input_statement_type *entry) 2395{ 2396 return ldfile_open_file_search (name, entry, "", ".lib"); 2397} 2398 2399static char * 2400gld_${EMULATION_NAME}_get_script (int *isfile) 2401EOF 2402# Scripts compiled in. 2403# sed commands to quote an ld script as a C string. 2404sc="-f stringify.sed" 2405 2406fragment <<EOF 2407{ 2408 *isfile = 0; 2409 2410 if (link_info.relocatable && config.build_constructors) 2411 return 2412EOF 2413sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c 2414echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c 2415sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c 2416echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c 2417sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c 2418echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c 2419sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c 2420if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then 2421echo ' ; else if (link_info.pei386_auto_import == 1 && (MERGE_RDATA_V2 || link_info.pei386_runtime_pseudo_reloc != 2)) return' >> e${EMULATION_NAME}.c 2422sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c 2423fi 2424echo ' ; else return' >> e${EMULATION_NAME}.c 2425sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c 2426echo '; }' >> e${EMULATION_NAME}.c 2427 2428fragment <<EOF 2429 2430 2431struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = 2432{ 2433 gld_${EMULATION_NAME}_before_parse, 2434 syslib_default, 2435 hll_default, 2436 gld_${EMULATION_NAME}_after_parse, 2437 gld_${EMULATION_NAME}_after_open, 2438 after_allocation_default, 2439 set_output_arch_default, 2440 ldemul_default_target, 2441 gld_${EMULATION_NAME}_before_allocation, 2442 gld_${EMULATION_NAME}_get_script, 2443 "${EMULATION_NAME}", 2444 "${OUTPUT_FORMAT}", 2445 gld_${EMULATION_NAME}_finish, 2446 NULL, /* Create output section statements. */ 2447 gld_${EMULATION_NAME}_open_dynamic_archive, 2448 gld_${EMULATION_NAME}_place_orphan, 2449 gld_${EMULATION_NAME}_set_symbols, 2450 NULL, /* parse_args */ 2451 gld${EMULATION_NAME}_add_options, 2452 gld${EMULATION_NAME}_handle_option, 2453 gld_${EMULATION_NAME}_unrecognized_file, 2454 gld_${EMULATION_NAME}_list_options, 2455 gld_${EMULATION_NAME}_recognized_file, 2456 gld_${EMULATION_NAME}_find_potential_libraries, 2457 NULL, /* new_vers_pattern. */ 2458 NULL /* extra_map_file_text. */ 2459}; 2460EOF 2461