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) 1995-2020 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_${EMULATION_NAME} 39 40#include "sysdep.h" 41#include "bfd.h" 42#include "bfdlink.h" 43#include "ctf-api.h" 44#include "getopt.h" 45#include "libiberty.h" 46#include "filenames.h" 47#include "ld.h" 48#include "ldmain.h" 49#include "ldexp.h" 50#include "ldlang.h" 51#include "ldfile.h" 52#include "ldemul.h" 53#include <ldgram.h> 54#include "ldlex.h" 55#include "ldmisc.h" 56#include "ldctor.h" 57#include "ldbuildid.h" 58#include "coff/internal.h" 59 60/* FIXME: See bfd/peXXigen.c for why we include an architecture specific 61 header in generic PE code. */ 62#include "coff/i386.h" 63#include "coff/pe.h" 64 65/* FIXME: These are BFD internal header files, and we should not be 66 using it here. */ 67#include "../bfd/libcoff.h" 68#include "../bfd/libpei.h" 69 70#if defined(TARGET_IS_armpe) \ 71 || defined(TARGET_IS_arm_wince_pe) 72#define bfd_arm_allocate_interworking_sections \ 73 bfd_${EMULATION_NAME}_allocate_interworking_sections 74#define bfd_arm_get_bfd_for_interworking \ 75 bfd_${EMULATION_NAME}_get_bfd_for_interworking 76#define bfd_arm_process_before_allocation \ 77 bfd_${EMULATION_NAME}_process_before_allocation 78#include "coff-arm.h" 79#endif 80 81#include "deffile.h" 82#include "pe-dll.h" 83#include "safe-ctype.h" 84 85/* Permit the emulation parameters to override the default section 86 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes 87 it seem that include/coff/internal.h should not define 88 PE_DEF_SECTION_ALIGNMENT. */ 89#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT} 90#undef PE_DEF_SECTION_ALIGNMENT 91#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT} 92#endif 93 94#if defined(TARGET_IS_i386pe) \ 95 || defined(TARGET_IS_shpe) \ 96 || defined(TARGET_IS_armpe) \ 97 || defined(TARGET_IS_arm_wince_pe) 98#define DLL_SUPPORT 99#endif 100 101#if defined(TARGET_IS_i386pe) 102#define DEFAULT_PSEUDO_RELOC_VERSION 2 103#else 104#define DEFAULT_PSEUDO_RELOC_VERSION 1 105#endif 106 107#if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT) 108#define PE_DEF_SUBSYSTEM 3 109#else 110#undef NT_EXE_IMAGE_BASE 111#undef PE_DEF_SECTION_ALIGNMENT 112#undef PE_DEF_FILE_ALIGNMENT 113#define NT_EXE_IMAGE_BASE 0x00010000 114 115#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 116#define PE_DEF_SECTION_ALIGNMENT 0x00001000 117#define PE_DEF_SUBSYSTEM 9 118#else 119#define PE_DEF_SECTION_ALIGNMENT 0x00000400 120#define PE_DEF_SUBSYSTEM 2 121#endif 122#define PE_DEF_FILE_ALIGNMENT 0x00000200 123#endif 124 125static struct internal_extra_pe_aouthdr pe; 126static int dll; 127static int pe_subsystem = ${SUBSYSTEM}; 128static flagword real_flags = 0; 129static int support_old_code = 0; 130static char * thumb_entry_symbol = NULL; 131static lang_assignment_statement_type *image_base_statement = 0; 132static unsigned short pe_dll_characteristics = 0; 133static bfd_boolean insert_timestamp = TRUE; 134static const char *emit_build_id; 135 136#ifdef DLL_SUPPORT 137static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */ 138static char *pe_out_def_filename = NULL; 139static int pe_enable_auto_image_base = 0; 140static unsigned long pe_auto_image_base = 0x61500000; 141static char *pe_dll_search_prefix = NULL; 142#endif 143 144extern const char *output_filename; 145 146static int is_underscoring (void) 147{ 148 int u = 0; 149 if (pe_leading_underscore != -1) 150 return pe_leading_underscore; 151 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL)) 152 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL); 153 154 if (u == -1) 155 abort (); 156 pe_leading_underscore = (u != 0 ? 1 : 0); 157 return pe_leading_underscore; 158} 159 160static void 161gld_${EMULATION_NAME}_before_parse (void) 162{ 163 is_underscoring (); 164 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); 165 output_filename = "${EXECUTABLE_NAME:-a.exe}"; 166#ifdef DLL_SUPPORT 167 input_flags.dynamic = TRUE; 168 config.has_shared = 1; 169EOF 170 171# Cygwin no longer wants these noisy warnings. Other PE 172# targets might like to consider adding themselves here. 173# See also the mail thread starting here for the reason why 174# merge_rdata defaults to 0 for cygwin: 175# http://cygwin.com/ml/cygwin-apps/2013-04/msg00187.html 176case ${target} in 177 *-*-cygwin*) 178 default_auto_import=1 179 default_merge_rdata=0 180 ;; 181 i[3-7]86-*-mingw* | x86_64-*-mingw*) 182 default_auto_import=1 183 default_merge_rdata=0 184 ;; 185 *) 186 default_auto_import=-1 187 default_merge_rdata=1 188 ;; 189esac 190 191fragment <<EOF 192 link_info.pei386_auto_import = ${default_auto_import}; 193 /* Use by default version. */ 194 link_info.pei386_runtime_pseudo_reloc = DEFAULT_PSEUDO_RELOC_VERSION; 195#endif 196} 197 198/* Indicates if RDATA shall be merged into DATA when pseudo-relocation 199 version 2 is used and auto-import is enabled. */ 200#define MERGE_RDATA_V2 ${default_merge_rdata} 201 202/* PE format extra command line options. */ 203 204/* Used for setting flags in the PE header. */ 205#define OPTION_BASE_FILE (300 + 1) 206#define OPTION_DLL (OPTION_BASE_FILE + 1) 207#define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1) 208#define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1) 209#define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1) 210#define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1) 211#define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1) 212#define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1) 213#define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1) 214#define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1) 215#define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1) 216#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1) 217#define OPTION_SUBSYSTEM (OPTION_STACK + 1) 218#define OPTION_HEAP (OPTION_SUBSYSTEM + 1) 219#define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1) 220#define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1) 221#define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1) 222#define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1) 223#define OPTION_EXCLUDE_ALL_SYMBOLS (OPTION_EXCLUDE_SYMBOLS + 1) 224#define OPTION_KILL_ATS (OPTION_EXCLUDE_ALL_SYMBOLS + 1) 225#define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1) 226#define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1) 227#define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1) 228#define OPTION_THUMB_ENTRY (OPTION_DISABLE_STDCALL_FIXUP + 1) 229#define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1) 230#define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1) 231#define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1) 232#define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1) 233#define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1) 234#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1) 235#define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1) 236#define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1) 237#define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1) 238#define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1) 239#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \ 240 (OPTION_EXCLUDE_LIBS + 1) 241#define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \ 242 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1) 243#define OPTION_LARGE_ADDRESS_AWARE (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1) 244#define OPTION_DISABLE_LARGE_ADDRESS_AWARE \ 245 (OPTION_LARGE_ADDRESS_AWARE + 1) 246#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 \ 247 (OPTION_DISABLE_LARGE_ADDRESS_AWARE + 1) 248#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 \ 249 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 + 1) 250#define OPTION_EXCLUDE_MODULES_FOR_IMPLIB \ 251 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 + 1) 252#define OPTION_USE_NUL_PREFIXED_IMPORT_TABLES \ 253 (OPTION_EXCLUDE_MODULES_FOR_IMPLIB + 1) 254#define OPTION_NO_LEADING_UNDERSCORE (OPTION_USE_NUL_PREFIXED_IMPORT_TABLES + 1) 255#define OPTION_LEADING_UNDERSCORE (OPTION_NO_LEADING_UNDERSCORE + 1) 256#define OPTION_ENABLE_LONG_SECTION_NAMES \ 257 (OPTION_LEADING_UNDERSCORE + 1) 258#define OPTION_DISABLE_LONG_SECTION_NAMES \ 259 (OPTION_ENABLE_LONG_SECTION_NAMES + 1) 260/* DLLCharacteristics flags. */ 261#define OPTION_DYNAMIC_BASE (OPTION_DISABLE_LONG_SECTION_NAMES + 1) 262#define OPTION_FORCE_INTEGRITY (OPTION_DYNAMIC_BASE + 1) 263#define OPTION_NX_COMPAT (OPTION_FORCE_INTEGRITY + 1) 264#define OPTION_NO_ISOLATION (OPTION_NX_COMPAT + 1) 265#define OPTION_NO_SEH (OPTION_NO_ISOLATION + 1) 266#define OPTION_NO_BIND (OPTION_NO_SEH + 1) 267#define OPTION_WDM_DRIVER (OPTION_NO_BIND + 1) 268#define OPTION_TERMINAL_SERVER_AWARE (OPTION_WDM_DRIVER + 1) 269/* Determinism. */ 270#define OPTION_INSERT_TIMESTAMP (OPTION_TERMINAL_SERVER_AWARE + 1) 271#define OPTION_NO_INSERT_TIMESTAMP (OPTION_INSERT_TIMESTAMP + 1) 272#define OPTION_BUILD_ID (OPTION_NO_INSERT_TIMESTAMP + 1) 273#define OPTION_ENABLE_RELOC_SECTION (OPTION_BUILD_ID + 1) 274 275static void 276gld${EMULATION_NAME}_add_options 277 (int ns ATTRIBUTE_UNUSED, 278 char **shortopts ATTRIBUTE_UNUSED, 279 int nl, 280 struct option **longopts, 281 int nrl ATTRIBUTE_UNUSED, 282 struct option **really_longopts ATTRIBUTE_UNUSED) 283{ 284 static const struct option xtra_long[] = 285 { 286 /* PE options. */ 287 {"base-file", required_argument, NULL, OPTION_BASE_FILE}, 288 {"dll", no_argument, NULL, OPTION_DLL}, 289 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, 290 {"heap", required_argument, NULL, OPTION_HEAP}, 291 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, 292 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, 293 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, 294 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, 295 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, 296 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, 297 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, 298 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, 299 {"stack", required_argument, NULL, OPTION_STACK}, 300 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, 301 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE}, 302 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, 303 {"use-nul-prefixed-import-tables", no_argument, NULL, 304 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES}, 305 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE}, 306 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE}, 307 {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP}, 308 {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP}, 309#ifdef DLL_SUPPORT 310 /* getopt allows abbreviations, so we do this to stop it 311 from treating -o as an abbreviation for this option. */ 312 {"output-def", required_argument, NULL, OPTION_OUT_DEF}, 313 {"output-def", required_argument, NULL, OPTION_OUT_DEF}, 314 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL}, 315 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS}, 316 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS}, 317 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, 318 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB}, 319 {"kill-at", no_argument, NULL, OPTION_KILL_ATS}, 320 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES}, 321 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP}, 322 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP}, 323 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS}, 324 /* getopt() allows abbreviations, so we do this to stop it from 325 treating -c as an abbreviation for these --compat-implib. */ 326 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, 327 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, 328 {"enable-auto-image-base", optional_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE}, 329 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE}, 330 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX}, 331 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES}, 332 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT}, 333 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT}, 334 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG}, 335 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC}, 336 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC}, 337 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1}, 338 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2}, 339#endif 340 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE}, 341 {"disable-large-address-aware", no_argument, NULL, OPTION_DISABLE_LARGE_ADDRESS_AWARE}, 342 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES}, 343 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES}, 344 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE}, 345 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY}, 346 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT}, 347 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION}, 348 {"no-seh", no_argument, NULL, OPTION_NO_SEH}, 349 {"no-bind", no_argument, NULL, OPTION_NO_BIND}, 350 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER}, 351 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE}, 352 {"build-id", optional_argument, NULL, OPTION_BUILD_ID}, 353 {"enable-reloc-section", no_argument, NULL, OPTION_ENABLE_RELOC_SECTION}, 354 {NULL, no_argument, NULL, 0} 355 }; 356 357 *longopts 358 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); 359 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); 360} 361 362/* PE/WIN32; added routines to get the subsystem type, heap and/or stack 363 parameters which may be input from the command line. */ 364 365typedef struct 366{ 367 void *ptr; 368 int size; 369 int value; 370 char *symbol; 371 int inited; 372 /* FALSE for an assembly level symbol and TRUE for a C visible symbol. 373 C visible symbols can be prefixed by underscore dependent to target's 374 settings. */ 375 bfd_boolean is_c_symbol; 376} definfo; 377 378/* Get symbol name dependent to kind and C visible state of 379 underscore. */ 380#define GET_INIT_SYMBOL_NAME(IDX) \ 381 (init[(IDX)].symbol \ 382 + ((!init[(IDX)].is_c_symbol || is_underscoring () != 0) ? 0 : 1)) 383 384/* Decorates the C visible symbol by underscore, if target requires. */ 385#define U(CSTR) \ 386 ((is_underscoring () == 0) ? CSTR : "_" CSTR) 387 388#define D(field,symbol,def,usc) {&pe.field, sizeof (pe.field), def, symbol, 0, usc} 389 390static definfo init[] = 391{ 392 /* imagebase must be first */ 393#define IMAGEBASEOFF 0 394 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE), 395#define DLLOFF 1 396 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE}, 397#define MSIMAGEBASEOFF 2 398 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE), 399 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE), 400 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE), 401 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE), 402 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE), 403 D(MajorImageVersion,"__major_image_version__", 1, FALSE), 404 D(MinorImageVersion,"__minor_image_version__", 0, FALSE), 405#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 406 D(MajorSubsystemVersion,"__major_subsystem_version__", 3, FALSE), 407#else 408 D(MajorSubsystemVersion,"__major_subsystem_version__", 4, FALSE), 409#endif 410 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0, FALSE), 411 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE), 412 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE), 413 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE), 414 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE), 415 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE), 416 D(LoaderFlags,"__loader_flags__", 0x0, FALSE), 417 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE), 418 { NULL, 0, 0, NULL, 0 , FALSE} 419}; 420 421 422static void 423gld_${EMULATION_NAME}_list_options (FILE *file) 424{ 425 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n")); 426 fprintf (file, _(" --dll Set image base to the default for DLLs\n")); 427 fprintf (file, _(" --file-alignment <size> Set file alignment\n")); 428 fprintf (file, _(" --heap <size> Set initial size of the heap\n")); 429 fprintf (file, _(" --image-base <address> Set start address of the executable\n")); 430 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n")); 431 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n")); 432 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n")); 433 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n")); 434 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n")); 435 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n")); 436 fprintf (file, _(" --section-alignment <size> Set section alignment\n")); 437 fprintf (file, _(" --stack <size> Set size of the initial stack\n")); 438 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n")); 439 fprintf (file, _(" --support-old-code Support interworking with old code\n")); 440 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n")); 441 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n")); 442 fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default).\n")); 443 fprintf (file, _(" This makes binaries non-deterministic\n")); 444#ifdef DLL_SUPPORT 445 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n")); 446 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n")); 447 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n")); 448 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n")); 449 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n")); 450 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n")); 451 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n")); 452 fprintf (file, _(" Exclude objects, archive members from auto\n")); 453 fprintf (file, _(" export, place into import library instead.\n")); 454 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n")); 455 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n")); 456 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n")); 457 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n")); 458 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\ 459 create __imp_<SYMBOL> as well.\n")); 460 fprintf (file, _(" --enable-auto-image-base[=<address>] Automatically choose image base for DLLs\n\ 461 (optionally starting with address) unless\n\ 462 specifically set with --image-base\n")); 463 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n")); 464 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\ 465 an importlib, use <string><basename>.dll\n\ 466 in preference to lib<basename>.dll \n")); 467 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\ 468 __imp_sym for DATA references\n")); 469 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n")); 470 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\ 471 adding pseudo-relocations resolved at\n\ 472 runtime.\n")); 473 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\ 474 auto-imported DATA.\n")); 475 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\ 476 or linking to DLLs (esp. auto-import)\n")); 477#endif 478 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\ 479 greater than 2 gigabytes\n")); 480 fprintf (file, _(" --disable-large-address-aware Executable does not support virtual\n\ 481 addresses greater than 2 gigabytes\n")); 482 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\ 483 executable image files\n")); 484 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\ 485 in object files\n")); 486 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\ 487 address space layout randomization (ASLR)\n")); 488 fprintf (file, _(" --enable-reloc-section Create the base relocation table\n")); 489 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n")); 490 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n")); 491 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n")); 492 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\ 493 be called in this image\n")); 494 fprintf (file, _(" --no-bind Do not bind this image\n")); 495 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n")); 496 fprintf (file, _(" --tsaware Image is Terminal Server aware\n")); 497 fprintf (file, _(" --build-id[=STYLE] Generate build ID\n")); 498} 499 500 501static void 502set_pe_name (char *name, long val) 503{ 504 int i; 505 is_underscoring (); 506 507 /* Find the name and set it. */ 508 for (i = 0; init[i].ptr; i++) 509 { 510 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0) 511 { 512 init[i].value = val; 513 init[i].inited = 1; 514 if (strcmp (name,"__image_base__") == 0) 515 set_pe_name (U ("__ImageBase"), val); 516 return; 517 } 518 } 519 abort (); 520} 521 522static void 523set_entry_point (void) 524{ 525 const char *entry; 526 const char *initial_symbol_char; 527 int i; 528 529 static const struct 530 { 531 const int value; 532 const char *entry; 533 } 534 v[] = 535 { 536 { 1, "NtProcessStartup" }, 537 { 2, "WinMainCRTStartup" }, 538 { 3, "mainCRTStartup" }, 539 { 7, "__PosixProcessStartup"}, 540 { 9, "WinMainCRTStartup" }, 541 {14, "mainCRTStartup" }, 542 { 0, NULL } 543 }; 544 545 /* Entry point name for arbitrary subsystem numbers. */ 546 static const char default_entry[] = "mainCRTStartup"; 547 548 if (bfd_link_pic (&link_info) || dll) 549 { 550#if defined (TARGET_IS_i386pe) 551 entry = "DllMainCRTStartup@12"; 552#else 553 entry = "DllMainCRTStartup"; 554#endif 555 } 556 else 557 { 558 for (i = 0; v[i].entry; i++) 559 if (v[i].value == pe_subsystem) 560 break; 561 562 /* If no match, use the default. */ 563 if (v[i].entry != NULL) 564 entry = v[i].entry; 565 else 566 entry = default_entry; 567 } 568 569 initial_symbol_char = (is_underscoring () != 0 ? "_" : ""); 570 571 if (*initial_symbol_char != '\0') 572 { 573 char *alc_entry; 574 575 /* lang_default_entry expects its argument to be permanently 576 allocated, so we don't free this string. */ 577 alc_entry = xmalloc (strlen (initial_symbol_char) 578 + strlen (entry) 579 + 1); 580 strcpy (alc_entry, initial_symbol_char); 581 strcat (alc_entry, entry); 582 entry = alc_entry; 583 } 584 585 lang_default_entry (entry); 586} 587 588static void 589set_pe_subsystem (void) 590{ 591 const char *sver; 592 char *end; 593 int len; 594 int i; 595 unsigned long temp_subsystem; 596 static const struct 597 { 598 const char *name; 599 const int value; 600 } 601 v[] = 602 { 603 { "native", 1}, 604 { "windows", 2}, 605 { "console", 3}, 606 { "posix", 7}, 607 { "wince", 9}, 608 { "xbox", 14}, 609 { NULL, 0 } 610 }; 611 612 /* Check for the presence of a version number. */ 613 sver = strchr (optarg, ':'); 614 if (sver == NULL) 615 len = strlen (optarg); 616 else 617 { 618 len = sver - optarg; 619 set_pe_name ("__major_subsystem_version__", 620 strtoul (sver + 1, &end, 0)); 621 if (*end == '.') 622 set_pe_name ("__minor_subsystem_version__", 623 strtoul (end + 1, &end, 0)); 624 if (*end != '\0') 625 einfo (_("%P: warning: bad version number in -subsystem option\n")); 626 } 627 628 /* Check for numeric subsystem. */ 629 temp_subsystem = strtoul (optarg, & end, 0); 630 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536)) 631 { 632 /* Search list for a numeric match to use its entry point. */ 633 for (i = 0; v[i].name; i++) 634 if (v[i].value == (int) temp_subsystem) 635 break; 636 637 /* Use this subsystem. */ 638 pe_subsystem = (int) temp_subsystem; 639 } 640 else 641 { 642 /* Search for subsystem by name. */ 643 for (i = 0; v[i].name; i++) 644 if (strncmp (optarg, v[i].name, len) == 0 645 && v[i].name[len] == '\0') 646 break; 647 648 if (v[i].name == NULL) 649 { 650 einfo (_("%F%P: invalid subsystem type %s\n"), optarg); 651 return; 652 } 653 654 pe_subsystem = v[i].value; 655 } 656 657 set_pe_name ("__subsystem__", pe_subsystem); 658 659 return; 660} 661 662 663static void 664set_pe_value (char *name) 665{ 666 char *end; 667 668 set_pe_name (name, strtoul (optarg, &end, 0)); 669 670 if (end == optarg) 671 einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg); 672 673 optarg = end; 674} 675 676 677static void 678set_pe_stack_heap (char *resname, char *comname) 679{ 680 set_pe_value (resname); 681 682 if (*optarg == ',') 683 { 684 optarg++; 685 set_pe_value (comname); 686 } 687 else if (*optarg) 688 einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg); 689} 690 691#define DEFAULT_BUILD_ID_STYLE "md5" 692 693static bfd_boolean 694gld${EMULATION_NAME}_handle_option (int optc) 695{ 696 switch (optc) 697 { 698 default: 699 return FALSE; 700 701 case OPTION_BASE_FILE: 702 link_info.base_file = fopen (optarg, FOPEN_WB); 703 if (link_info.base_file == NULL) 704 einfo (_("%F%P: cannot open base file %s\n"), optarg); 705 break; 706 707 /* PE options. */ 708 case OPTION_HEAP: 709 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); 710 break; 711 case OPTION_STACK: 712 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); 713 break; 714 case OPTION_SUBSYSTEM: 715 set_pe_subsystem (); 716 break; 717 case OPTION_MAJOR_OS_VERSION: 718 set_pe_value ("__major_os_version__"); 719 break; 720 case OPTION_MINOR_OS_VERSION: 721 set_pe_value ("__minor_os_version__"); 722 break; 723 case OPTION_MAJOR_SUBSYSTEM_VERSION: 724 set_pe_value ("__major_subsystem_version__"); 725 break; 726 case OPTION_MINOR_SUBSYSTEM_VERSION: 727 set_pe_value ("__minor_subsystem_version__"); 728 break; 729 case OPTION_MAJOR_IMAGE_VERSION: 730 set_pe_value ("__major_image_version__"); 731 break; 732 case OPTION_MINOR_IMAGE_VERSION: 733 set_pe_value ("__minor_image_version__"); 734 break; 735 case OPTION_FILE_ALIGNMENT: 736 set_pe_value ("__file_alignment__"); 737 break; 738 case OPTION_SECTION_ALIGNMENT: 739 set_pe_value ("__section_alignment__"); 740 break; 741 case OPTION_DLL: 742 set_pe_name ("__dll__", 1); 743 break; 744 case OPTION_IMAGE_BASE: 745 set_pe_value ("__image_base__"); 746 break; 747 case OPTION_SUPPORT_OLD_CODE: 748 support_old_code = 1; 749 break; 750 case OPTION_THUMB_ENTRY: 751 thumb_entry_symbol = optarg; 752 break; 753 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES: 754 pe_use_nul_prefixed_import_tables = TRUE; 755 break; 756 case OPTION_NO_LEADING_UNDERSCORE: 757 pe_leading_underscore = 0; 758 break; 759 case OPTION_LEADING_UNDERSCORE: 760 pe_leading_underscore = 1; 761 break; 762 case OPTION_INSERT_TIMESTAMP: 763 insert_timestamp = TRUE; 764 break; 765 case OPTION_NO_INSERT_TIMESTAMP: 766 insert_timestamp = FALSE; 767 break; 768#ifdef DLL_SUPPORT 769 case OPTION_OUT_DEF: 770 pe_out_def_filename = xstrdup (optarg); 771 break; 772 case OPTION_EXPORT_ALL: 773 pe_dll_export_everything = 1; 774 break; 775 case OPTION_EXCLUDE_SYMBOLS: 776 pe_dll_add_excludes (optarg, EXCLUDESYMS); 777 break; 778 case OPTION_EXCLUDE_ALL_SYMBOLS: 779 pe_dll_exclude_all_symbols = 1; 780 break; 781 case OPTION_EXCLUDE_LIBS: 782 pe_dll_add_excludes (optarg, EXCLUDELIBS); 783 break; 784 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB: 785 pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB); 786 break; 787 case OPTION_KILL_ATS: 788 pe_dll_kill_ats = 1; 789 break; 790 case OPTION_STDCALL_ALIASES: 791 pe_dll_stdcall_aliases = 1; 792 break; 793 case OPTION_ENABLE_STDCALL_FIXUP: 794 pe_enable_stdcall_fixup = 1; 795 break; 796 case OPTION_DISABLE_STDCALL_FIXUP: 797 pe_enable_stdcall_fixup = 0; 798 break; 799 case OPTION_WARN_DUPLICATE_EXPORTS: 800 pe_dll_warn_dup_exports = 1; 801 break; 802 case OPTION_IMP_COMPAT: 803 pe_dll_compat_implib = 1; 804 break; 805 case OPTION_ENABLE_AUTO_IMAGE_BASE: 806 pe_enable_auto_image_base = 1; 807 if (optarg && *optarg) 808 { 809 char *end; 810 pe_auto_image_base = strtoul (optarg, &end, 0); 811 /* XXX should check that we actually parsed something */ 812 } 813 break; 814 case OPTION_DISABLE_AUTO_IMAGE_BASE: 815 pe_enable_auto_image_base = 0; 816 break; 817 case OPTION_DLL_SEARCH_PREFIX: 818 pe_dll_search_prefix = xstrdup (optarg); 819 break; 820 case OPTION_NO_DEFAULT_EXCLUDES: 821 pe_dll_do_default_excludes = 0; 822 break; 823 case OPTION_DLL_ENABLE_AUTO_IMPORT: 824 link_info.pei386_auto_import = 1; 825 break; 826 case OPTION_DLL_DISABLE_AUTO_IMPORT: 827 link_info.pei386_auto_import = 0; 828 break; 829 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC: 830 link_info.pei386_runtime_pseudo_reloc = 831 DEFAULT_PSEUDO_RELOC_VERSION; 832 break; 833 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1: 834 link_info.pei386_runtime_pseudo_reloc = 1; 835 break; 836 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2: 837 link_info.pei386_runtime_pseudo_reloc = 2; 838 break; 839 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC: 840 link_info.pei386_runtime_pseudo_reloc = 0; 841 break; 842 case OPTION_ENABLE_EXTRA_PE_DEBUG: 843 pe_dll_extra_pe_debug = 1; 844 break; 845#endif 846 case OPTION_LARGE_ADDRESS_AWARE: 847 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; 848 break; 849 case OPTION_DISABLE_LARGE_ADDRESS_AWARE: 850 real_flags &= ~ IMAGE_FILE_LARGE_ADDRESS_AWARE; 851 break; 852 case OPTION_ENABLE_LONG_SECTION_NAMES: 853 pe_use_coff_long_section_names = 1; 854 break; 855 case OPTION_DISABLE_LONG_SECTION_NAMES: 856 pe_use_coff_long_section_names = 0; 857 break; 858/* Get DLLCharacteristics bits */ 859 case OPTION_DYNAMIC_BASE: 860 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE; 861 /* fall through */ 862 case OPTION_ENABLE_RELOC_SECTION: 863 pe_dll_enable_reloc_section = 1; 864 break; 865 case OPTION_FORCE_INTEGRITY: 866 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY; 867 break; 868 case OPTION_NX_COMPAT: 869 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT; 870 break; 871 case OPTION_NO_ISOLATION: 872 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION; 873 break; 874 case OPTION_NO_SEH: 875 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH; 876 break; 877 case OPTION_NO_BIND: 878 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND; 879 break; 880 case OPTION_WDM_DRIVER: 881 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER; 882 break; 883 case OPTION_TERMINAL_SERVER_AWARE: 884 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE; 885 break; 886 case OPTION_BUILD_ID: 887 if (emit_build_id != NULL) 888 { 889 free ((char *) emit_build_id); 890 emit_build_id = NULL; 891 } 892 if (optarg == NULL) 893 optarg = DEFAULT_BUILD_ID_STYLE; 894 if (strcmp (optarg, "none")) 895 emit_build_id = xstrdup (optarg); 896 break; 897 } 898 899 /* Set DLLCharacteristics bits */ 900 set_pe_name ("__dll_characteristics__", pe_dll_characteristics); 901 902 return TRUE; 903} 904 905 906#ifdef DLL_SUPPORT 907static unsigned long 908strhash (const char *str) 909{ 910 const unsigned char *s; 911 unsigned long hash; 912 unsigned int c; 913 unsigned int len; 914 915 hash = 0; 916 len = 0; 917 s = (const unsigned char *) str; 918 while ((c = *s++) != '\0') 919 { 920 hash += c + (c << 17); 921 hash ^= hash >> 2; 922 ++len; 923 } 924 hash += len + (len << 17); 925 hash ^= hash >> 2; 926 927 return hash; 928} 929 930/* Use the output file to create a image base for relocatable DLLs. */ 931 932static unsigned long 933compute_dll_image_base (const char *ofile) 934{ 935 unsigned long hash = strhash (ofile); 936 return pe_auto_image_base + ((hash << 16) & 0x0FFC0000); 937} 938#endif 939 940/* Assign values to the special symbols before the linker script is 941 read. */ 942 943static void 944gld_${EMULATION_NAME}_set_symbols (void) 945{ 946 /* Run through and invent symbols for all the 947 names and insert the defaults. */ 948 int j; 949 950 is_underscoring (); 951 952 if (!init[IMAGEBASEOFF].inited) 953 { 954 if (bfd_link_relocatable (&link_info)) 955 init[IMAGEBASEOFF].value = 0; 956 else if (init[DLLOFF].value || bfd_link_dll (&link_info)) 957 { 958#ifdef DLL_SUPPORT 959 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base 960 ? compute_dll_image_base (output_filename) 961 : NT_DLL_IMAGE_BASE); 962#else 963 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; 964#endif 965 } 966 else 967 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE; 968 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value; 969 } 970 971 /* Don't do any symbol assignments if this is a relocatable link. */ 972 if (bfd_link_relocatable (&link_info)) 973 return; 974 975 /* Glue the assignments into the abs section. */ 976 push_stat_ptr (&abs_output_section->children); 977 978 for (j = 0; init[j].ptr; j++) 979 { 980 long val = init[j].value; 981 lang_assignment_statement_type *rv; 982 983 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j), 984 exp_intop (val), FALSE)); 985 if (init[j].size == sizeof (short)) 986 *(short *) init[j].ptr = val; 987 else if (init[j].size == sizeof (int)) 988 *(int *) init[j].ptr = val; 989 else if (init[j].size == sizeof (long)) 990 *(long *) init[j].ptr = val; 991 /* This might be a long long or other special type. */ 992 else if (init[j].size == sizeof (bfd_vma)) 993 *(bfd_vma *) init[j].ptr = val; 994 else abort (); 995 if (j == IMAGEBASEOFF) 996 image_base_statement = rv; 997 } 998 /* Restore the pointer. */ 999 pop_stat_ptr (); 1000 1001 if (pe.FileAlignment > pe.SectionAlignment) 1002 { 1003 einfo (_("%P: warning, file alignment > section alignment\n")); 1004 } 1005} 1006 1007/* This is called after the linker script and the command line options 1008 have been read. */ 1009 1010static void 1011gld_${EMULATION_NAME}_after_parse (void) 1012{ 1013 /* PR ld/6744: Warn the user if they have used an ELF-only 1014 option hoping it will work on PE. */ 1015 if (link_info.export_dynamic) 1016 einfo (_("%P: warning: --export-dynamic is not supported for PE " 1017 "targets, did you mean --export-all-symbols?\n")); 1018 1019 set_entry_point (); 1020 1021 after_parse_default (); 1022} 1023 1024#ifdef DLL_SUPPORT 1025static struct bfd_link_hash_entry *pe_undef_found_sym; 1026 1027static bfd_boolean 1028pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf) 1029{ 1030 int sl; 1031 char *string = inf; 1032 const char *hs = h->root.string; 1033 1034 sl = strlen (string); 1035 if (h->type == bfd_link_hash_defined 1036 && ((*hs == '@' && *string == '_' 1037 && strncmp (hs + 1, string + 1, sl - 1) == 0) 1038 || strncmp (hs, string, sl) == 0) 1039 && h->root.string[sl] == '@') 1040 { 1041 pe_undef_found_sym = h; 1042 return FALSE; 1043 } 1044 return TRUE; 1045} 1046 1047/* Change UNDEF to a defined symbol, taking data from SYM. */ 1048 1049static void 1050change_undef (struct bfd_link_hash_entry * undef, 1051 struct bfd_link_hash_entry * sym) 1052{ 1053 static bfd_boolean gave_warning_message = FALSE; 1054 1055 undef->type = bfd_link_hash_defined; 1056 undef->u.def.value = sym->u.def.value; 1057 undef->u.def.section = sym->u.def.section; 1058 1059 if (pe_enable_stdcall_fixup == -1) 1060 { 1061 einfo (_("%P: warning: resolving %s by linking to %s\n"), 1062 undef->root.string, sym->root.string); 1063 1064 if (! gave_warning_message) 1065 { 1066 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); 1067 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); 1068 gave_warning_message = TRUE; 1069 } 1070 } 1071 1072 /* PR 19803: Make sure that the linked symbol is not garbage collected. */ 1073 lang_add_gc_name (sym->root.string); 1074} 1075 1076static void 1077pe_fixup_stdcalls (void) 1078{ 1079 struct bfd_link_hash_entry *undef, *sym; 1080 1081 if (pe_dll_extra_pe_debug) 1082 printf ("%s\n", __FUNCTION__); 1083 1084 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) 1085 if (undef->type == bfd_link_hash_undefined) 1086 { 1087 const char * name = undef->root.string; 1088 char * at; 1089 int lead_at = (*name == '@'); 1090 1091 if (lead_at) 1092 at = strchr (name + 1, '@'); 1093 else 1094 at = strchr (name, '@'); 1095 1096 if (at || lead_at) 1097 { 1098 /* The symbol is a stdcall symbol, so let's look for a 1099 cdecl symbol with the same name and resolve to that. */ 1100 char *cname = xstrdup (name); 1101 1102 if (lead_at) 1103 *cname = '_'; 1104 if (at) 1105 * strchr (cname, '@') = 0; 1106 sym = bfd_link_hash_lookup (link_info.hash, cname, FALSE, FALSE, TRUE); 1107 1108 if (sym && sym->type == bfd_link_hash_defined) 1109 change_undef (undef, sym); 1110 } 1111 else 1112 { 1113 /* The symbol is a cdecl symbol, so we look for stdcall 1114 symbols - which means scanning the whole symbol table. */ 1115 pe_undef_found_sym = NULL; 1116 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match, 1117 (char *) name); 1118 if (pe_undef_found_sym) 1119 change_undef (undef, pe_undef_found_sym); 1120 } 1121 } 1122} 1123 1124static void 1125make_import_fixup (arelent *rel, asection *s, char *name, const char *symname) 1126{ 1127 struct bfd_symbol *sym = *rel->sym_ptr_ptr; 1128 char addend[4]; 1129 bfd_vma _addend; 1130 1131 if (pe_dll_extra_pe_debug) 1132 printf ("arelent: %s@%#lx: add=%li\n", sym->name, 1133 (unsigned long) rel->address, (long) rel->addend); 1134 1135 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend))) 1136 einfo (_("%P: %C: cannot get section contents - auto-import exception\n"), 1137 s->owner, s, rel->address); 1138 1139 _addend = bfd_get_32 (s->owner, addend); 1140 pe_create_import_fixup (rel, s, _addend, name, symname); 1141} 1142 1143static bfd_boolean 1144pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED) 1145{ 1146 printf ("+%s\n", h->string); 1147 1148 return TRUE; 1149} 1150#endif /* DLL_SUPPORT */ 1151 1152static void 1153debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj) 1154{ 1155 int *found = (int *) obj; 1156 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0) 1157 *found = 1; 1158} 1159 1160static bfd_boolean 1161pecoff_checksum_contents (bfd *abfd, 1162 void (*process) (const void *, size_t, void *), 1163 void *arg) 1164{ 1165 file_ptr filepos = (file_ptr) 0; 1166 1167 while (1) 1168 { 1169 unsigned char b; 1170 int status; 1171 1172 if (bfd_seek (abfd, filepos, SEEK_SET) != 0) 1173 return 0; 1174 1175 status = bfd_bread (&b, (bfd_size_type) 1, abfd); 1176 if (status < 1) 1177 { 1178 break; 1179 } 1180 1181 (*process) (&b, 1, arg); 1182 filepos += 1; 1183 } 1184 1185 return TRUE; 1186} 1187 1188static bfd_boolean 1189write_build_id (bfd *abfd) 1190{ 1191 struct pe_tdata *t = pe_data (abfd); 1192 asection *asec; 1193 struct bfd_link_order *link_order = NULL; 1194 unsigned char *contents; 1195 bfd_size_type size; 1196 bfd_size_type build_id_size; 1197 unsigned char *build_id; 1198 1199 /* Find the section the .buildid output section has been merged info. */ 1200 for (asec = abfd->sections; asec != NULL; asec = asec->next) 1201 { 1202 struct bfd_link_order *l = NULL; 1203 for (l = asec->map_head.link_order; l != NULL; l = l->next) 1204 { 1205 if (l->type == bfd_indirect_link_order) 1206 { 1207 if (l->u.indirect.section == t->build_id.sec) 1208 { 1209 link_order = l; 1210 break; 1211 } 1212 } 1213 } 1214 1215 if (link_order) 1216 break; 1217 } 1218 1219 if (!link_order) 1220 { 1221 einfo (_("%P: warning: .buildid section discarded," 1222 " --build-id ignored\n")); 1223 return TRUE; 1224 } 1225 1226 if (t->build_id.sec->contents == NULL) 1227 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size); 1228 contents = t->build_id.sec->contents; 1229 size = t->build_id.sec->size; 1230 1231 build_id_size = compute_build_id_size (t->build_id.style); 1232 build_id = xmalloc (build_id_size); 1233 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size); 1234 1235 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase; 1236 1237 /* Construct a debug directory entry which points to an immediately following CodeView record. */ 1238 struct internal_IMAGE_DEBUG_DIRECTORY idd; 1239 idd.Characteristics = 0; 1240 idd.TimeDateStamp = 0; 1241 idd.MajorVersion = 0; 1242 idd.MinorVersion = 0; 1243 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW; 1244 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1; 1245 idd.AddressOfRawData = asec->vma - ib + link_order->offset 1246 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY); 1247 idd.PointerToRawData = asec->filepos + link_order->offset 1248 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY); 1249 1250 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents; 1251 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext); 1252 1253 /* Write the debug directory entry. */ 1254 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0) 1255 return 0; 1256 1257 if (bfd_bwrite (contents, size, abfd) != size) 1258 return 0; 1259 1260 /* Construct the CodeView record. */ 1261 CODEVIEW_INFO cvinfo; 1262 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE; 1263 cvinfo.Age = 1; 1264 1265 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */ 1266 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH); 1267 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH) 1268 ? CV_INFO_SIGNATURE_LENGTH : build_id_size); 1269 1270 free (build_id); 1271 1272 /* Write the codeview record. */ 1273 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0) 1274 return 0; 1275 1276 /* Record the location of the debug directory in the data directory. */ 1277 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress 1278 = asec->vma - ib + link_order->offset; 1279 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size 1280 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY); 1281 1282 return TRUE; 1283} 1284 1285/* Make .buildid section, and set up coff_tdata->build_id. */ 1286static bfd_boolean 1287setup_build_id (bfd *ibfd) 1288{ 1289 asection *s; 1290 flagword flags; 1291 1292 if (!validate_build_id_style (emit_build_id)) 1293 { 1294 einfo (_("%P: warning: unrecognized --build-id style ignored\n")); 1295 return FALSE; 1296 } 1297 1298 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY 1299 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA); 1300 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags); 1301 if (s != NULL) 1302 { 1303 struct pe_tdata *t = pe_data (link_info.output_bfd); 1304 t->build_id.after_write_object_contents = &write_build_id; 1305 t->build_id.style = emit_build_id; 1306 t->build_id.sec = s; 1307 1308 /* Section is a fixed size: 1309 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW, 1310 pointing at a CV_INFO_PDB70 record containing the build-id, with a 1311 null byte for PdbFileName. */ 1312 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY) 1313 + sizeof (CV_INFO_PDB70) + 1; 1314 1315 return TRUE; 1316 } 1317 1318 einfo (_("%P: warning: cannot create .buildid section," 1319 " --build-id ignored\n")); 1320 return FALSE; 1321} 1322 1323static void 1324gld_${EMULATION_NAME}_after_open (void) 1325{ 1326 after_open_default (); 1327 1328#ifdef DLL_SUPPORT 1329 if (pe_dll_extra_pe_debug) 1330 { 1331 bfd *a; 1332 struct bfd_link_hash_entry *sym; 1333 1334 printf ("%s()\n", __FUNCTION__); 1335 1336 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next) 1337 printf ("-%s\n", sym->root.string); 1338 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL); 1339 1340 for (a = link_info.input_bfds; a; a = a->link.next) 1341 printf ("*%s\n",a->filename); 1342 } 1343#endif 1344 1345 if (emit_build_id != NULL) 1346 { 1347 bfd *abfd; 1348 1349 /* Find a COFF input. */ 1350 for (abfd = link_info.input_bfds; 1351 abfd != (bfd *) NULL; abfd = abfd->link.next) 1352 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour) 1353 break; 1354 1355 /* If there are no COFF input files do not try to 1356 add a build-id section. */ 1357 if (abfd == NULL 1358 || !setup_build_id (abfd)) 1359 { 1360 free ((char *) emit_build_id); 1361 emit_build_id = NULL; 1362 } 1363 } 1364 1365 /* Pass the wacky PE command line options into the output bfd. 1366 FIXME: This should be done via a function, rather than by 1367 including an internal BFD header. */ 1368 1369 if (bfd_get_flavour (link_info.output_bfd) != bfd_target_coff_flavour 1370 || coff_data (link_info.output_bfd) == NULL 1371 || coff_data (link_info.output_bfd)->pe == 0) 1372 einfo (_("%F%P: cannot perform PE operations on non PE output file '%pB'\n"), 1373 link_info.output_bfd); 1374 1375 pe_data (link_info.output_bfd)->pe_opthdr = pe; 1376 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value; 1377 pe_data (link_info.output_bfd)->real_flags |= real_flags; 1378 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp; 1379 1380 /* At this point we must decide whether to use long section names 1381 in the output or not. If the user hasn't explicitly specified 1382 on the command line, we leave it to the default for the format 1383 (object files yes, image files no), except if there is debug 1384 information present; GDB relies on the long section names to 1385 find it, so enable it in that case. */ 1386 if (pe_use_coff_long_section_names < 0 && link_info.strip == strip_none) 1387 { 1388 if (bfd_link_relocatable (&link_info)) 1389 pe_use_coff_long_section_names = 1; 1390 else 1391 { 1392 /* Iterate over all sections of all input BFDs, checking 1393 for any that begin 'debug_' and are long names. */ 1394 LANG_FOR_EACH_INPUT_STATEMENT (is) 1395 { 1396 int found_debug = 0; 1397 1398 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug); 1399 if (found_debug) 1400 { 1401 pe_use_coff_long_section_names = 1; 1402 break; 1403 } 1404 } 1405 } 1406 } 1407 1408 pe_output_file_set_long_section_names (link_info.output_bfd); 1409 1410#ifdef DLL_SUPPORT 1411 pe_process_import_defs (link_info.output_bfd, &link_info); 1412 1413 if (link_info.pei386_auto_import) /* -1=warn or 1=enable */ 1414 pe_find_data_imports (U ("_head_"), make_import_fixup); 1415 1416 /* The implementation of the feature is rather dumb and would cause the 1417 compilation time to go through the roof if there are many undefined 1418 symbols in the link, so it needs to be run after auto-import. */ 1419 if (pe_enable_stdcall_fixup) /* -1=warn or 1=enable */ 1420 pe_fixup_stdcalls (); 1421 1422#if defined (TARGET_IS_i386pe) \ 1423 || defined (TARGET_IS_armpe) \ 1424 || defined (TARGET_IS_arm_wince_pe) 1425 if (!bfd_link_relocatable (&link_info)) 1426 pe_dll_build_sections (link_info.output_bfd, &link_info); 1427#else 1428 if (bfd_link_pic (&link_info)) 1429 pe_dll_build_sections (link_info.output_bfd, &link_info); 1430 else 1431 pe_exe_build_sections (link_info.output_bfd, &link_info); 1432#endif 1433#endif /* DLL_SUPPORT */ 1434 1435#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 1436 if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL) 1437 { 1438 /* The arm backend needs special fields in the output hash structure. 1439 These will only be created if the output format is an arm format, 1440 hence we do not support linking and changing output formats at the 1441 same time. Use a link followed by objcopy to change output formats. */ 1442 einfo (_("%F%P: error: cannot change output format " 1443 "whilst linking %s binaries\n"), "ARM"); 1444 return; 1445 } 1446 { 1447 /* Find a BFD that can hold the interworking stubs. */ 1448 LANG_FOR_EACH_INPUT_STATEMENT (is) 1449 { 1450 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info)) 1451 break; 1452 } 1453 } 1454#endif 1455 1456 { 1457 /* This next chunk of code tries to detect the case where you have 1458 two import libraries for the same DLL (specifically, 1459 symbolically linking libm.a and libc.a in cygwin to 1460 libcygwin.a). In those cases, it's possible for function 1461 thunks from the second implib to be used but without the 1462 head/tail objects, causing an improper import table. We detect 1463 those cases and rename the "other" import libraries to match 1464 the one the head/tail come from, so that the linker will sort 1465 things nicely and produce a valid import table. */ 1466 1467 LANG_FOR_EACH_INPUT_STATEMENT (is) 1468 { 1469 if (is->the_bfd->my_archive) 1470 { 1471 int idata2 = 0, reloc_count=0, is_imp = 0; 1472 asection *sec; 1473 1474 /* See if this is an import library thunk. */ 1475 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1476 { 1477 if (strcmp (sec->name, ".idata\$2") == 0) 1478 idata2 = 1; 1479 if (CONST_STRNEQ (sec->name, ".idata\$")) 1480 is_imp = 1; 1481 reloc_count += sec->reloc_count; 1482 } 1483 1484 if (is_imp && !idata2 && reloc_count) 1485 { 1486 /* It is, look for the reference to head and see if it's 1487 from our own library. */ 1488 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1489 { 1490 int i; 1491 long relsize; 1492 asymbol **symbols; 1493 arelent **relocs; 1494 int nrelocs; 1495 1496 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec); 1497 if (relsize < 1) 1498 break; 1499 1500 if (!bfd_generic_link_read_symbols (is->the_bfd)) 1501 { 1502 einfo (_("%F%P: %pB: could not read symbols: %E\n"), 1503 is->the_bfd); 1504 return; 1505 } 1506 symbols = bfd_get_outsymbols (is->the_bfd); 1507 1508 relocs = xmalloc ((size_t) relsize); 1509 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec, 1510 relocs, symbols); 1511 if (nrelocs < 0) 1512 { 1513 free (relocs); 1514 einfo (_("%X%P: unable to process relocs: %E\n")); 1515 return; 1516 } 1517 1518 for (i = 0; i < nrelocs; i++) 1519 { 1520 struct bfd_symbol *s; 1521 struct bfd_link_hash_entry * blhe; 1522 const char *other_bfd_filename; 1523 char *n; 1524 1525 s = (relocs[i]->sym_ptr_ptr)[0]; 1526 1527 if (s->flags & BSF_LOCAL) 1528 continue; 1529 1530 /* Thunk section with reloc to another bfd. */ 1531 blhe = bfd_link_hash_lookup (link_info.hash, 1532 s->name, 1533 FALSE, FALSE, TRUE); 1534 1535 if (blhe == NULL 1536 || blhe->type != bfd_link_hash_defined) 1537 continue; 1538 1539 other_bfd_filename 1540 = blhe->u.def.section->owner->my_archive 1541 ? bfd_get_filename (blhe->u.def.section->owner->my_archive) 1542 : bfd_get_filename (blhe->u.def.section->owner); 1543 1544 if (filename_cmp (bfd_get_filename 1545 (is->the_bfd->my_archive), 1546 other_bfd_filename) == 0) 1547 continue; 1548 1549 /* Rename this implib to match the other one. */ 1550 n = xmalloc (strlen (other_bfd_filename) + 1); 1551 strcpy (n, other_bfd_filename); 1552 bfd_set_filename (is->the_bfd->my_archive, n); 1553 } 1554 1555 free (relocs); 1556 /* Note - we do not free the symbols, 1557 they are now cached in the BFD. */ 1558 } 1559 } 1560 } 1561 } 1562 } 1563 1564 { 1565 int is_ms_arch = 0; 1566 bfd *cur_arch = 0; 1567 lang_input_statement_type *is2; 1568 lang_input_statement_type *is3; 1569 1570 /* Careful - this is a shell script. Watch those dollar signs! */ 1571 /* Microsoft import libraries have every member named the same, 1572 and not in the right order for us to link them correctly. We 1573 must detect these and rename the members so that they'll link 1574 correctly. There are three types of objects: the head, the 1575 thunks, and the sentinel(s). The head is easy; it's the one 1576 with idata2. We assume that the sentinels won't have relocs, 1577 and the thunks will. It's easier than checking the symbol 1578 table for external references. */ 1579 LANG_FOR_EACH_INPUT_STATEMENT (is) 1580 { 1581 if (is->the_bfd->my_archive) 1582 { 1583 char *pnt; 1584 bfd *arch = is->the_bfd->my_archive; 1585 1586 if (cur_arch != arch) 1587 { 1588 cur_arch = arch; 1589 is_ms_arch = 1; 1590 1591 for (is3 = is; 1592 is3 && is3->the_bfd->my_archive == arch; 1593 is3 = (lang_input_statement_type *) is3->next) 1594 { 1595 /* A MS dynamic import library can also contain static 1596 members, so look for the first element with a .dll 1597 extension, and use that for the remainder of the 1598 comparisons. */ 1599 pnt = strrchr (is3->the_bfd->filename, '.'); 1600 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0) 1601 break; 1602 } 1603 1604 if (is3 == NULL) 1605 is_ms_arch = 0; 1606 else 1607 { 1608 /* OK, found one. Now look to see if the remaining 1609 (dynamic import) members use the same name. */ 1610 for (is2 = is; 1611 is2 && is2->the_bfd->my_archive == arch; 1612 is2 = (lang_input_statement_type *) is2->next) 1613 { 1614 /* Skip static members, ie anything with a .obj 1615 extension. */ 1616 pnt = strrchr (is2->the_bfd->filename, '.'); 1617 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0) 1618 continue; 1619 1620 if (filename_cmp (is3->the_bfd->filename, 1621 is2->the_bfd->filename)) 1622 { 1623 is_ms_arch = 0; 1624 break; 1625 } 1626 } 1627 } 1628 } 1629 1630 /* This fragment might have come from an .obj file in a Microsoft 1631 import, and not an actual import record. If this is the case, 1632 then leave the filename alone. */ 1633 pnt = strrchr (is->the_bfd->filename, '.'); 1634 1635 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0)) 1636 { 1637 int idata2 = 0, reloc_count=0; 1638 asection *sec; 1639 char *new_name, seq; 1640 1641 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1642 { 1643 if (strcmp (sec->name, ".idata\$2") == 0) 1644 idata2 = 1; 1645 reloc_count += sec->reloc_count; 1646 } 1647 1648 if (idata2) /* .idata2 is the TOC */ 1649 seq = 'a'; 1650 else if (reloc_count > 0) /* thunks */ 1651 seq = 'b'; 1652 else /* sentinel */ 1653 seq = 'c'; 1654 1655 new_name = xmalloc (strlen (is->the_bfd->filename) + 3); 1656 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq); 1657 bfd_set_filename (is->the_bfd, new_name); 1658 1659 new_name = xmalloc (strlen (is->filename) + 3); 1660 sprintf (new_name, "%s.%c", is->filename, seq); 1661 is->filename = new_name; 1662 } 1663 } 1664 } 1665 } 1666 1667 { 1668 /* The following chunk of code tries to identify jump stubs in 1669 import libraries which are dead code and eliminates them 1670 from the final link. For each exported symbol <sym>, there 1671 is a object file in the import library with a .text section 1672 and several .idata\$* sections. The .text section contains the 1673 symbol definition for <sym> which is a jump stub of the form 1674 jmp *__imp_<sym>. The .idata\$5 contains the symbol definition 1675 for __imp_<sym> which is the address of the slot for <sym> in 1676 the import address table. When a symbol is imported explicitly 1677 using __declspec(dllimport) declaration, the compiler generates 1678 a reference to __imp_<sym> which directly resolves to the 1679 symbol in .idata\$5, in which case the jump stub code is not 1680 needed. The following code tries to identify jump stub sections 1681 in import libraries which are not referred to by anyone and 1682 marks them for exclusion from the final link. */ 1683 LANG_FOR_EACH_INPUT_STATEMENT (is) 1684 { 1685 if (is->the_bfd->my_archive) 1686 { 1687 int is_imp = 0; 1688 asection *sec, *stub_sec = NULL; 1689 1690 /* See if this is an import library thunk. */ 1691 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1692 { 1693 if (strncmp (sec->name, ".idata\$", 7) == 0) 1694 is_imp = 1; 1695 /* The section containing the jmp stub has code 1696 and has a reloc. */ 1697 if ((sec->flags & SEC_CODE) && sec->reloc_count) 1698 stub_sec = sec; 1699 } 1700 1701 if (is_imp && stub_sec) 1702 { 1703 asymbol **symbols; 1704 long nsyms, src_count; 1705 struct bfd_link_hash_entry * blhe; 1706 1707 if (!bfd_generic_link_read_symbols (is->the_bfd)) 1708 { 1709 einfo (_("%F%P: %pB: could not read symbols: %E\n"), 1710 is->the_bfd); 1711 return; 1712 } 1713 symbols = bfd_get_outsymbols (is->the_bfd); 1714 nsyms = bfd_get_symcount (is->the_bfd); 1715 1716 for (src_count = 0; src_count < nsyms; src_count++) 1717 { 1718 if (symbols[src_count]->section->id == stub_sec->id) 1719 { 1720 /* This symbol belongs to the section containing 1721 the stub. */ 1722 blhe = bfd_link_hash_lookup (link_info.hash, 1723 symbols[src_count]->name, 1724 FALSE, FALSE, TRUE); 1725 /* If the symbol in the stub section has no other 1726 undefined references, exclude the stub section 1727 from the final link. */ 1728 if (blhe != NULL 1729 && blhe->type == bfd_link_hash_defined 1730 && blhe->u.undef.next == NULL 1731 && blhe != link_info.hash->undefs_tail) 1732 stub_sec->flags |= SEC_EXCLUDE; 1733 } 1734 } 1735 } 1736 } 1737 } 1738 } 1739} 1740 1741static void 1742gld_${EMULATION_NAME}_before_allocation (void) 1743{ 1744#ifdef TARGET_IS_ppcpe 1745 /* Here we rummage through the found bfds to collect toc information. */ 1746 { 1747 LANG_FOR_EACH_INPUT_STATEMENT (is) 1748 { 1749 if (!ppc_process_before_allocation (is->the_bfd, &link_info)) 1750 { 1751 /* xgettext:c-format */ 1752 einfo (_("%P: errors encountered processing file %s\n"), is->filename); 1753 } 1754 } 1755 } 1756 1757 /* We have seen it all. Allocate it, and carry on. */ 1758 ppc_allocate_toc_section (&link_info); 1759#endif /* TARGET_IS_ppcpe */ 1760 1761#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 1762 /* FIXME: we should be able to set the size of the interworking stub 1763 section. 1764 1765 Here we rummage through the found bfds to collect glue 1766 information. FIXME: should this be based on a command line 1767 option? krk@cygnus.com. */ 1768 { 1769 LANG_FOR_EACH_INPUT_STATEMENT (is) 1770 { 1771 if (! bfd_arm_process_before_allocation 1772 (is->the_bfd, & link_info, support_old_code)) 1773 { 1774 /* xgettext:c-format */ 1775 einfo (_("%P: errors encountered processing file %s for interworking\n"), 1776 is->filename); 1777 } 1778 } 1779 } 1780 1781 /* We have seen it all. Allocate it, and carry on. */ 1782 bfd_arm_allocate_interworking_sections (& link_info); 1783#endif /* TARGET_IS_armpe || TARGET_IS_arm_wince_pe */ 1784 1785 before_allocation_default (); 1786} 1787 1788#ifdef DLL_SUPPORT 1789/* This is called when an input file isn't recognized as a BFD. We 1790 check here for .DEF files and pull them in automatically. */ 1791 1792static int 1793saw_option (char *option) 1794{ 1795 int i; 1796 1797 for (i = 0; init[i].ptr; i++) 1798 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0) 1799 return init[i].inited; 1800 return 0; 1801} 1802#endif /* DLL_SUPPORT */ 1803 1804static bfd_boolean 1805gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) 1806{ 1807#ifdef DLL_SUPPORT 1808 const char *ext = entry->filename + strlen (entry->filename) - 4; 1809 1810 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0) 1811 { 1812 pe_def_file = def_file_parse (entry->filename, pe_def_file); 1813 1814 if (pe_def_file) 1815 { 1816 int i, buflen=0, len; 1817 char *buf; 1818 1819 for (i = 0; i < pe_def_file->num_exports; i++) 1820 { 1821 len = strlen (pe_def_file->exports[i].internal_name); 1822 if (buflen < len + 2) 1823 buflen = len + 2; 1824 } 1825 1826 buf = xmalloc (buflen); 1827 1828 for (i = 0; i < pe_def_file->num_exports; i++) 1829 { 1830 struct bfd_link_hash_entry *h; 1831 1832 sprintf (buf, "%s%s", U (""), 1833 pe_def_file->exports[i].internal_name); 1834 1835 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE); 1836 if (h == (struct bfd_link_hash_entry *) NULL) 1837 einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n")); 1838 if (h->type == bfd_link_hash_new) 1839 { 1840 h->type = bfd_link_hash_undefined; 1841 h->u.undef.abfd = NULL; 1842 bfd_link_add_undef (link_info.hash, h); 1843 } 1844 } 1845 free (buf); 1846 1847 /* def_file_print (stdout, pe_def_file); */ 1848 if (pe_def_file->is_dll == 1) 1849 link_info.type = type_dll; 1850 1851 if (pe_def_file->base_address != (bfd_vma)(-1)) 1852 { 1853 pe.ImageBase 1854 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase 1855 = init[IMAGEBASEOFF].value 1856 = pe_def_file->base_address; 1857 init[IMAGEBASEOFF].inited = 1; 1858 if (image_base_statement) 1859 image_base_statement->exp 1860 = exp_assign ("__image_base__", exp_intop (pe.ImageBase), 1861 FALSE); 1862 } 1863 1864 if (pe_def_file->stack_reserve != -1 1865 && ! saw_option ("__size_of_stack_reserve__")) 1866 { 1867 pe.SizeOfStackReserve = pe_def_file->stack_reserve; 1868 if (pe_def_file->stack_commit != -1) 1869 pe.SizeOfStackCommit = pe_def_file->stack_commit; 1870 } 1871 if (pe_def_file->heap_reserve != -1 1872 && ! saw_option ("__size_of_heap_reserve__")) 1873 { 1874 pe.SizeOfHeapReserve = pe_def_file->heap_reserve; 1875 if (pe_def_file->heap_commit != -1) 1876 pe.SizeOfHeapCommit = pe_def_file->heap_commit; 1877 } 1878 return TRUE; 1879 } 1880 } 1881#endif 1882 return FALSE; 1883} 1884 1885static bfd_boolean 1886gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) 1887{ 1888#ifdef DLL_SUPPORT 1889#ifdef TARGET_IS_i386pe 1890 pe_dll_id_target ("pei-i386"); 1891#endif 1892#ifdef TARGET_IS_shpe 1893 pe_dll_id_target ("pei-shl"); 1894#endif 1895#ifdef TARGET_IS_armpe 1896 pe_dll_id_target ("pei-arm-little"); 1897#endif 1898#ifdef TARGET_IS_arm_wince_pe 1899 pe_dll_id_target ("pei-arm-wince-little"); 1900#endif 1901 if (pe_bfd_is_dll (entry->the_bfd)) 1902 return pe_implied_import_dll (entry->filename); 1903#endif 1904 return FALSE; 1905} 1906 1907static void 1908gld_${EMULATION_NAME}_finish (void) 1909{ 1910#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 1911 struct bfd_link_hash_entry * h; 1912 1913 if (thumb_entry_symbol != NULL) 1914 { 1915 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, 1916 FALSE, FALSE, TRUE); 1917 1918 if (h != (struct bfd_link_hash_entry *) NULL 1919 && (h->type == bfd_link_hash_defined 1920 || h->type == bfd_link_hash_defweak) 1921 && h->u.def.section->output_section != NULL) 1922 { 1923 static char buffer[32]; 1924 bfd_vma val; 1925 1926 /* Special procesing is required for a Thumb entry symbol. The 1927 bottom bit of its address must be set. */ 1928 val = (h->u.def.value 1929 + bfd_section_vma (h->u.def.section->output_section) 1930 + h->u.def.section->output_offset); 1931 1932 val |= 1; 1933 1934 /* Now convert this value into a string and store it in entry_symbol 1935 where the lang_finish() function will pick it up. */ 1936 buffer[0] = '0'; 1937 buffer[1] = 'x'; 1938 1939 sprintf_vma (buffer + 2, val); 1940 1941 if (entry_symbol.name != NULL && entry_from_cmdline) 1942 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"), 1943 thumb_entry_symbol, entry_symbol.name); 1944 entry_symbol.name = buffer; 1945 } 1946 else 1947 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol); 1948 } 1949#endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) */ 1950 1951 finish_default (); 1952 1953#ifdef DLL_SUPPORT 1954 if (bfd_link_pic (&link_info) 1955#if !defined(TARGET_IS_shpe) 1956 || pe_dll_enable_reloc_section 1957 || (!bfd_link_relocatable (&link_info) 1958 && pe_def_file->num_exports != 0) 1959#endif 1960 ) 1961 { 1962 pe_dll_fill_sections (link_info.output_bfd, &link_info); 1963 if (command_line.out_implib_filename) 1964 pe_dll_generate_implib (pe_def_file, command_line.out_implib_filename, 1965 &link_info); 1966 } 1967#if defined(TARGET_IS_shpe) 1968 /* ARM doesn't need relocs. */ 1969 else 1970 { 1971 pe_exe_fill_sections (link_info.output_bfd, &link_info); 1972 } 1973#endif 1974 1975 if (pe_out_def_filename) 1976 pe_dll_generate_def_file (pe_out_def_filename); 1977#endif /* DLL_SUPPORT */ 1978 1979 /* I don't know where .idata gets set as code, but it shouldn't be. */ 1980 { 1981 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata"); 1982 1983 if (asec) 1984 { 1985 asec->flags &= ~SEC_CODE; 1986 asec->flags |= SEC_DATA; 1987 } 1988 } 1989} 1990 1991 1992/* Place an orphan section. 1993 1994 We use this to put sections in a reasonable place in the file, and 1995 to ensure that they are aligned as required. 1996 1997 We handle grouped sections here as well. A section named .foo\$nn 1998 goes into the output section .foo. All grouped sections are sorted 1999 by name. 2000 2001 Grouped sections for the default sections are handled by the 2002 default linker script using wildcards, and are sorted by 2003 sort_sections. */ 2004 2005static lang_output_section_statement_type * 2006gld_${EMULATION_NAME}_place_orphan (asection *s, 2007 const char *secname, 2008 int constraint) 2009{ 2010 const char *orig_secname = secname; 2011 char *dollar = NULL; 2012 lang_output_section_statement_type *os; 2013 lang_statement_list_type add_child; 2014 lang_output_section_statement_type *match_by_name = NULL; 2015 lang_statement_union_type **pl; 2016 2017 /* Look through the script to see where to place this section. */ 2018 if (!bfd_link_relocatable (&link_info) 2019 && (dollar = strchr (secname, '\$')) != NULL) 2020 { 2021 size_t len = dollar - secname; 2022 char *newname = xmalloc (len + 1); 2023 memcpy (newname, secname, len); 2024 newname[len] = '\0'; 2025 secname = newname; 2026 } 2027 2028 lang_list_init (&add_child); 2029 2030 os = NULL; 2031 if (constraint == 0) 2032 for (os = lang_output_section_find (secname); 2033 os != NULL; 2034 os = next_matching_output_section_statement (os, 0)) 2035 { 2036 /* If we don't match an existing output section, tell 2037 lang_insert_orphan to create a new output section. */ 2038 constraint = SPECIAL; 2039 2040 if (os->bfd_section != NULL 2041 && (os->bfd_section->flags == 0 2042 || ((s->flags ^ os->bfd_section->flags) 2043 & (SEC_LOAD | SEC_ALLOC)) == 0)) 2044 { 2045 /* We already have an output section statement with this 2046 name, and its bfd section has compatible flags. 2047 If the section already exists but does not have any flags set, 2048 then it has been created by the linker, probably as a result of 2049 a --section-start command line switch. */ 2050 lang_add_section (&add_child, s, NULL, os); 2051 break; 2052 } 2053 2054 /* Save unused output sections in case we can match them 2055 against orphans later. */ 2056 if (os->bfd_section == NULL) 2057 match_by_name = os; 2058 } 2059 2060 /* If we didn't match an active output section, see if we matched an 2061 unused one and use that. */ 2062 if (os == NULL && match_by_name) 2063 { 2064 lang_add_section (&match_by_name->children, s, NULL, match_by_name); 2065 return match_by_name; 2066 } 2067 2068 if (os == NULL) 2069 { 2070 static struct orphan_save hold[] = 2071 { 2072 { ".text", 2073 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, 2074 0, 0, 0, 0 }, 2075 { ".idata", 2076 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, 2077 0, 0, 0, 0 }, 2078 { ".rdata", 2079 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, 2080 0, 0, 0, 0 }, 2081 { ".data", 2082 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, 2083 0, 0, 0, 0 }, 2084 { ".bss", 2085 SEC_ALLOC, 2086 0, 0, 0, 0 } 2087 }; 2088 enum orphan_save_index 2089 { 2090 orphan_text = 0, 2091 orphan_idata, 2092 orphan_rodata, 2093 orphan_data, 2094 orphan_bss 2095 }; 2096 static int orphan_init_done = 0; 2097 struct orphan_save *place; 2098 lang_output_section_statement_type *after; 2099 etree_type *address; 2100 flagword flags; 2101 asection *nexts; 2102 2103 if (!orphan_init_done) 2104 { 2105 struct orphan_save *ho; 2106 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) 2107 if (ho->name != NULL) 2108 { 2109 ho->os = lang_output_section_find (ho->name); 2110 if (ho->os != NULL && ho->os->flags == 0) 2111 ho->os->flags = ho->flags; 2112 } 2113 orphan_init_done = 1; 2114 } 2115 2116 flags = s->flags; 2117 if (!bfd_link_relocatable (&link_info)) 2118 { 2119 nexts = s; 2120 while ((nexts = bfd_get_next_section_by_name (nexts->owner, 2121 nexts))) 2122 if (nexts->output_section == NULL 2123 && (nexts->flags & SEC_EXCLUDE) == 0 2124 && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0 2125 && (nexts->owner->flags & DYNAMIC) == 0 2126 && !bfd_input_just_syms (nexts->owner)) 2127 flags = (((flags ^ SEC_READONLY) 2128 | (nexts->flags ^ SEC_READONLY)) 2129 ^ SEC_READONLY); 2130 } 2131 2132 /* Try to put the new output section in a reasonable place based 2133 on the section name and section flags. */ 2134 2135 place = NULL; 2136 if ((flags & SEC_ALLOC) == 0) 2137 ; 2138 else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) 2139 place = &hold[orphan_bss]; 2140 else if ((flags & SEC_READONLY) == 0) 2141 place = &hold[orphan_data]; 2142 else if ((flags & SEC_CODE) == 0) 2143 { 2144 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata] 2145 : &hold[orphan_rodata]); 2146 } 2147 else 2148 place = &hold[orphan_text]; 2149 2150 after = NULL; 2151 if (place != NULL) 2152 { 2153 if (place->os == NULL) 2154 place->os = lang_output_section_find (place->name); 2155 after = place->os; 2156 if (after == NULL) 2157 after = lang_output_section_find_by_flags (s, flags, &place->os, 2158 NULL); 2159 if (after == NULL) 2160 /* *ABS* is always the first output section statement. */ 2161 after = (void *) lang_os_list.head; 2162 } 2163 2164 /* All sections in an executable must be aligned to a page boundary. 2165 In a relocatable link, just preserve the incoming alignment; the 2166 address is discarded by lang_insert_orphan in that case, anyway. */ 2167 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__")); 2168 os = lang_insert_orphan (s, secname, constraint, after, place, address, 2169 &add_child); 2170 if (bfd_link_relocatable (&link_info)) 2171 { 2172 os->section_alignment = exp_intop (1U << s->alignment_power); 2173 os->bfd_section->alignment_power = s->alignment_power; 2174 } 2175 } 2176 2177 /* If the section name has a '\$', sort it with the other '\$' 2178 sections. */ 2179 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next) 2180 { 2181 lang_input_section_type *ls; 2182 const char *lname; 2183 2184 if ((*pl)->header.type != lang_input_section_enum) 2185 continue; 2186 2187 ls = &(*pl)->input_section; 2188 2189 lname = bfd_section_name (ls->section); 2190 if (strchr (lname, '\$') != NULL 2191 && (dollar == NULL || strcmp (orig_secname, lname) < 0)) 2192 break; 2193 } 2194 2195 if (add_child.head != NULL) 2196 { 2197 *add_child.tail = *pl; 2198 *pl = add_child.head; 2199 } 2200 2201 return os; 2202} 2203 2204static bfd_boolean 2205gld_${EMULATION_NAME}_open_dynamic_archive 2206 (const char *arch ATTRIBUTE_UNUSED, 2207 search_dirs_type *search, 2208 lang_input_statement_type *entry) 2209{ 2210 static const struct 2211 { 2212 const char * format; 2213 bfd_boolean use_prefix; 2214 } 2215 libname_fmt [] = 2216 { 2217 /* Preferred explicit import library for dll's. */ 2218 { "lib%s.dll.a", FALSE }, 2219 /* Alternate explicit import library for dll's. */ 2220 { "%s.dll.a", FALSE }, 2221 /* "libfoo.a" could be either an import lib or a static lib. 2222 For backwards compatibility, libfoo.a needs to precede 2223 libfoo.dll and foo.dll in the search. */ 2224 { "lib%s.a", FALSE }, 2225 /* The 'native' spelling of an import lib name is "foo.lib". */ 2226 { "%s.lib", FALSE }, 2227 /* PR 22948 - Check for an import library. */ 2228 { "lib%s.lib", FALSE }, 2229#ifdef DLL_SUPPORT 2230 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */ 2231 { "%s%s.dll", TRUE }, 2232#endif 2233 /* Try "libfoo.dll" (default preferred dll name). */ 2234 { "lib%s.dll", FALSE }, 2235 /* Finally try 'native' dll name "foo.dll". */ 2236 { "%s.dll", FALSE }, 2237 /* Note: If adding more formats to this table, make sure to check to 2238 see if their length is longer than libname_fmt[0].format, and if 2239 so, update the call to xmalloc() below. */ 2240 { NULL, FALSE } 2241 }; 2242 static unsigned int format_max_len = 0; 2243 const char * filename; 2244 char * full_string; 2245 char * base_string; 2246 unsigned int i; 2247 2248 2249 if (! entry->flags.maybe_archive || entry->flags.full_name_provided) 2250 return FALSE; 2251 2252 filename = entry->filename; 2253 2254 if (format_max_len == 0) 2255 /* We need to allow space in the memory that we are going to allocate 2256 for the characters in the format string. Since the format array is 2257 static we only need to calculate this information once. In theory 2258 this value could also be computed statically, but this introduces 2259 the possibility for a discrepancy and hence a possible memory 2260 corruption. The lengths we compute here will be too long because 2261 they will include any formating characters (%s) in the strings, but 2262 this will not matter. */ 2263 for (i = 0; libname_fmt[i].format; i++) 2264 if (format_max_len < strlen (libname_fmt[i].format)) 2265 format_max_len = strlen (libname_fmt[i].format); 2266 2267 full_string = xmalloc (strlen (search->name) 2268 + strlen (filename) 2269 + format_max_len 2270#ifdef DLL_SUPPORT 2271 + (pe_dll_search_prefix 2272 ? strlen (pe_dll_search_prefix) : 0) 2273#endif 2274 /* Allow for the terminating NUL and for the path 2275 separator character that is inserted between 2276 search->name and the start of the format string. */ 2277 + 2); 2278 2279 sprintf (full_string, "%s/", search->name); 2280 base_string = full_string + strlen (full_string); 2281 2282 for (i = 0; libname_fmt[i].format; i++) 2283 { 2284#ifdef DLL_SUPPORT 2285 if (libname_fmt[i].use_prefix) 2286 { 2287 if (!pe_dll_search_prefix) 2288 continue; 2289 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename); 2290 } 2291 else 2292#endif 2293 sprintf (base_string, libname_fmt[i].format, filename); 2294 2295 if (ldfile_try_open_bfd (full_string, entry)) 2296 break; 2297 } 2298 2299 if (!libname_fmt[i].format) 2300 { 2301 free (full_string); 2302 return FALSE; 2303 } 2304 2305 entry->filename = full_string; 2306 2307 return TRUE; 2308} 2309 2310static int 2311gld_${EMULATION_NAME}_find_potential_libraries 2312 (char *name, lang_input_statement_type *entry) 2313{ 2314 return ldfile_open_file_search (name, entry, "", ".lib"); 2315} 2316 2317static char * 2318gld_${EMULATION_NAME}_get_script (int *isfile) 2319EOF 2320# Scripts compiled in. 2321# sed commands to quote an ld script as a C string. 2322sc="-f stringify.sed" 2323 2324fragment <<EOF 2325{ 2326 *isfile = 0; 2327 2328 if (bfd_link_relocatable (&link_info) && config.build_constructors) 2329 return 2330EOF 2331sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c 2332echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c 2333sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c 2334echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c 2335sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c 2336echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c 2337sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c 2338if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then 2339echo ' ; else if (link_info.pei386_auto_import == 1 && (MERGE_RDATA_V2 || link_info.pei386_runtime_pseudo_reloc != 2)) return' >> e${EMULATION_NAME}.c 2340sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c 2341fi 2342echo ' ; else return' >> e${EMULATION_NAME}.c 2343sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c 2344echo '; }' >> e${EMULATION_NAME}.c 2345 2346fragment <<EOF 2347 2348 2349struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = 2350{ 2351 gld_${EMULATION_NAME}_before_parse, 2352 syslib_default, 2353 hll_default, 2354 gld_${EMULATION_NAME}_after_parse, 2355 gld_${EMULATION_NAME}_after_open, 2356 after_check_relocs_default, 2357 after_allocation_default, 2358 set_output_arch_default, 2359 ldemul_default_target, 2360 gld_${EMULATION_NAME}_before_allocation, 2361 gld_${EMULATION_NAME}_get_script, 2362 "${EMULATION_NAME}", 2363 "${OUTPUT_FORMAT}", 2364 gld_${EMULATION_NAME}_finish, 2365 NULL, /* Create output section statements. */ 2366 gld_${EMULATION_NAME}_open_dynamic_archive, 2367 gld_${EMULATION_NAME}_place_orphan, 2368 gld_${EMULATION_NAME}_set_symbols, 2369 NULL, /* parse_args */ 2370 gld${EMULATION_NAME}_add_options, 2371 gld${EMULATION_NAME}_handle_option, 2372 gld_${EMULATION_NAME}_unrecognized_file, 2373 gld_${EMULATION_NAME}_list_options, 2374 gld_${EMULATION_NAME}_recognized_file, 2375 gld_${EMULATION_NAME}_find_potential_libraries, 2376 NULL, /* new_vers_pattern. */ 2377 NULL, /* extra_map_file_text. */ 2378 ${LDEMUL_EMIT_CTF_EARLY-NULL}, 2379 ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL} 2380}; 2381EOF 2382