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 2006, 2007, 2008, 2009, 2010, 2011, 2012 12 Free Software Foundation, Inc. 13 Written by Kai Tietz, OneVision Software GmbH&CoKg. 14 15 This file is part of the GNU Binutils. 16 17 This program is free software; you can redistribute it and/or modify 18 it under the terms of the GNU General Public License as published by 19 the Free Software Foundation; either version 3 of the License, or 20 (at your option) any later version. 21 22 This program is distributed in the hope that it will be useful, 23 but WITHOUT ANY WARRANTY; without even the implied warranty of 24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 25 GNU General Public License for more details. 26 27 You should have received a copy of the GNU General Public License 28 along with this program; if not, write to the Free Software 29 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 30 MA 02110-1301, USA. */ 31 32 33/* For WINDOWS_XP64 and higher */ 34/* Based on pe.em, but modified for 64 bit support. */ 35 36#define TARGET_IS_${EMULATION_NAME} 37 38#define COFF_IMAGE_WITH_PE 39#define COFF_WITH_PE 40#define COFF_WITH_pex64 41 42#include "sysdep.h" 43#include "bfd.h" 44#include "bfdlink.h" 45#include "getopt.h" 46#include "libiberty.h" 47#include "filenames.h" 48#include "ld.h" 49#include "ldmain.h" 50#include "ldexp.h" 51#include "ldlang.h" 52#include "ldfile.h" 53#include "ldemul.h" 54#include <ldgram.h> 55#include "ldlex.h" 56#include "ldmisc.h" 57#include "ldctor.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/x86_64.h" 63#include "coff/pe.h" 64 65/* FIXME: This is a BFD internal header file, and we should not be 66 using it here. */ 67#include "../bfd/libcoff.h" 68 69#undef AOUTSZ 70#define AOUTSZ PEPAOUTSZ 71#define PEAOUTHDR PEPAOUTHDR 72 73#include "deffile.h" 74#include "pep-dll.h" 75#include "safe-ctype.h" 76 77/* Permit the emulation parameters to override the default section 78 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes 79 it seem that include/coff/internal.h should not define 80 PE_DEF_SECTION_ALIGNMENT. */ 81#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT} 82#undef PE_DEF_SECTION_ALIGNMENT 83#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT} 84#endif 85 86#ifdef TARGET_IS_i386pep 87#define DLL_SUPPORT 88#endif 89 90#if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT) 91#define PE_DEF_SUBSYSTEM 3 92#else 93#undef NT_EXE_IMAGE_BASE 94#define NT_EXE_IMAGE_BASE 0x00010000 95#undef PE_DEF_SECTION_ALIGNMENT 96#define PE_DEF_SUBSYSTEM 2 97#undef PE_DEF_FILE_ALIGNMENT 98#define PE_DEF_FILE_ALIGNMENT 0x00000200 99#define PE_DEF_SECTION_ALIGNMENT 0x00000400 100#endif 101 102static struct internal_extra_pe_aouthdr pep; 103static int dll; 104static int pep_subsystem = ${SUBSYSTEM}; 105static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE; 106static int support_old_code = 0; 107static lang_assignment_statement_type *image_base_statement = 0; 108static unsigned short pe_dll_characteristics = 0; 109 110#ifdef DLL_SUPPORT 111static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */ 112static char * pep_out_def_filename = NULL; 113static char * pep_implib_filename = NULL; 114static int pep_enable_auto_image_base = 0; 115static char * pep_dll_search_prefix = NULL; 116#endif 117 118extern const char *output_filename; 119 120static int is_underscoring (void) 121{ 122 int u = 0; 123 if (pep_leading_underscore != -1) 124 return pep_leading_underscore; 125 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL)) 126 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL); 127 128 if (u == -1) 129 abort (); 130 pep_leading_underscore = (u != 0 ? 1 : 0); 131 return pep_leading_underscore; 132} 133 134 135static void 136gld_${EMULATION_NAME}_before_parse (void) 137{ 138 is_underscoring (); 139 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); 140 output_filename = "${EXECUTABLE_NAME:-a.exe}"; 141#ifdef DLL_SUPPORT 142 input_flags.dynamic = TRUE; 143 config.has_shared = 1; 144 link_info.pei386_auto_import = 1; 145 link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */ 146#endif 147} 148 149/* PE format extra command line options. */ 150 151/* Used for setting flags in the PE header. */ 152enum options 153{ 154 OPTION_BASE_FILE = 300 + 1, 155 OPTION_DLL, 156 OPTION_FILE_ALIGNMENT, 157 OPTION_IMAGE_BASE, 158 OPTION_MAJOR_IMAGE_VERSION, 159 OPTION_MAJOR_OS_VERSION, 160 OPTION_MAJOR_SUBSYSTEM_VERSION, 161 OPTION_MINOR_IMAGE_VERSION, 162 OPTION_MINOR_OS_VERSION, 163 OPTION_MINOR_SUBSYSTEM_VERSION, 164 OPTION_SECTION_ALIGNMENT, 165 OPTION_STACK, 166 OPTION_SUBSYSTEM, 167 OPTION_HEAP, 168 OPTION_SUPPORT_OLD_CODE, 169 OPTION_OUT_DEF, 170 OPTION_EXPORT_ALL, 171 OPTION_EXCLUDE_SYMBOLS, 172 OPTION_EXCLUDE_ALL_SYMBOLS, 173 OPTION_KILL_ATS, 174 OPTION_STDCALL_ALIASES, 175 OPTION_ENABLE_STDCALL_FIXUP, 176 OPTION_DISABLE_STDCALL_FIXUP, 177 OPTION_IMPLIB_FILENAME, 178 OPTION_WARN_DUPLICATE_EXPORTS, 179 OPTION_IMP_COMPAT, 180 OPTION_ENABLE_AUTO_IMAGE_BASE, 181 OPTION_DISABLE_AUTO_IMAGE_BASE, 182 OPTION_DLL_SEARCH_PREFIX, 183 OPTION_NO_DEFAULT_EXCLUDES, 184 OPTION_DLL_ENABLE_AUTO_IMPORT, 185 OPTION_DLL_DISABLE_AUTO_IMPORT, 186 OPTION_ENABLE_EXTRA_PE_DEBUG, 187 OPTION_EXCLUDE_LIBS, 188 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC, 189 OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC, 190 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2, 191 OPTION_EXCLUDE_MODULES_FOR_IMPLIB, 192 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES, 193 OPTION_NO_LEADING_UNDERSCORE, 194 OPTION_LEADING_UNDERSCORE, 195 OPTION_ENABLE_LONG_SECTION_NAMES, 196 OPTION_DISABLE_LONG_SECTION_NAMES, 197 OPTION_DYNAMIC_BASE, 198 OPTION_FORCE_INTEGRITY, 199 OPTION_NX_COMPAT, 200 OPTION_NO_ISOLATION, 201 OPTION_NO_SEH, 202 OPTION_NO_BIND, 203 OPTION_WDM_DRIVER, 204 OPTION_TERMINAL_SERVER_AWARE 205}; 206 207static void 208gld${EMULATION_NAME}_add_options 209 (int ns ATTRIBUTE_UNUSED, 210 char **shortopts ATTRIBUTE_UNUSED, 211 int nl, 212 struct option **longopts, 213 int nrl ATTRIBUTE_UNUSED, 214 struct option **really_longopts ATTRIBUTE_UNUSED) 215{ 216 static const struct option xtra_long[] = 217 { 218 /* PE options */ 219 {"base-file", required_argument, NULL, OPTION_BASE_FILE}, 220 {"dll", no_argument, NULL, OPTION_DLL}, 221 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, 222 {"heap", required_argument, NULL, OPTION_HEAP}, 223 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, 224 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, 225 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, 226 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, 227 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, 228 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, 229 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, 230 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, 231 {"stack", required_argument, NULL, OPTION_STACK}, 232 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, 233 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE}, 234 {"use-nul-prefixed-import-tables", no_argument, NULL, 235 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES}, 236 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE}, 237 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE}, 238#ifdef DLL_SUPPORT 239 /* getopt allows abbreviations, so we do this to stop it 240 from treating -o as an abbreviation for this option. */ 241 {"output-def", required_argument, NULL, OPTION_OUT_DEF}, 242 {"output-def", required_argument, NULL, OPTION_OUT_DEF}, 243 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL}, 244 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS}, 245 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS}, 246 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, 247 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB}, 248 {"kill-at", no_argument, NULL, OPTION_KILL_ATS}, 249 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES}, 250 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP}, 251 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP}, 252 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME}, 253 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS}, 254 /* getopt() allows abbreviations, so we do this to stop it from 255 treating -c as an abbreviation for these --compat-implib. */ 256 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, 257 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, 258 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE}, 259 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE}, 260 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX}, 261 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES}, 262 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT}, 263 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT}, 264 {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG}, 265 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC}, 266 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC}, 267 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2}, 268#endif 269 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES}, 270 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES}, 271 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE}, 272 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY}, 273 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT}, 274 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION}, 275 {"no-seh", no_argument, NULL, OPTION_NO_SEH}, 276 {"no-bind", no_argument, NULL, OPTION_NO_BIND}, 277 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER}, 278 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE}, 279 {NULL, no_argument, NULL, 0} 280 }; 281 282 *longopts 283 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); 284 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); 285} 286 287/* PE/WIN32; added routines to get the subsystem type, heap and/or stack 288 parameters which may be input from the command line. */ 289 290typedef struct 291{ 292 void *ptr; 293 int size; 294 bfd_vma value; 295 char *symbol; 296 int inited; 297 /* FALSE for an assembly level symbol and TRUE for a C visible symbol. 298 C visible symbols can be prefixed by underscore dependent on target's 299 settings. */ 300 bfd_boolean is_c_symbol; 301} definfo; 302 303#define GET_INIT_SYMBOL_NAME(IDX) \ 304 (init[(IDX)].symbol \ 305 + ((init[(IDX)].is_c_symbol == FALSE || (is_underscoring () == 1)) ? 0 : 1)) 306 307/* Decorates the C visible symbol by underscore, if target requires. */ 308#define U(CSTR) \ 309 ((is_underscoring () == 0) ? CSTR : "_" CSTR) 310 311/* Get size of constant string for a possible underscore prefixed 312 C visible symbol. */ 313#define U_SIZE(CSTR) \ 314 (sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1)) 315 316#define D(field,symbol,def,usc) {&pep.field,sizeof(pep.field), def, symbol,0, usc} 317 318static definfo init[] = 319{ 320 /* imagebase must be first */ 321#define IMAGEBASEOFF 0 322 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE), 323#define DLLOFF 1 324 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE}, 325#define MSIMAGEBASEOFF 2 326 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE), 327 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE), 328 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE), 329 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE), 330 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE), 331 D(MajorImageVersion,"__major_image_version__", 0, FALSE), 332 D(MinorImageVersion,"__minor_image_version__", 0, FALSE), 333 D(MajorSubsystemVersion,"__major_subsystem_version__", 5, FALSE), 334 D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, FALSE), 335 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE), 336 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE), 337 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE), 338 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE), 339 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE), 340 D(LoaderFlags,"__loader_flags__", 0x0, FALSE), 341 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE), 342 { NULL, 0, 0, NULL, 0, FALSE} 343}; 344 345 346static void 347gld_${EMULATION_NAME}_list_options (FILE *file) 348{ 349 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n")); 350 fprintf (file, _(" --dll Set image base to the default for DLLs\n")); 351 fprintf (file, _(" --file-alignment <size> Set file alignment\n")); 352 fprintf (file, _(" --heap <size> Set initial size of the heap\n")); 353 fprintf (file, _(" --image-base <address> Set start address of the executable\n")); 354 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n")); 355 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n")); 356 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n")); 357 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n")); 358 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n")); 359 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n")); 360 fprintf (file, _(" --section-alignment <size> Set section alignment\n")); 361 fprintf (file, _(" --stack <size> Set size of the initial stack\n")); 362 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n")); 363 fprintf (file, _(" --support-old-code Support interworking with old code\n")); 364 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n")); 365#ifdef DLL_SUPPORT 366 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n")); 367 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n")); 368 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n")); 369 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n")); 370 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n")); 371 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n")); 372 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n")); 373 fprintf (file, _(" Exclude objects, archive members from auto\n")); 374 fprintf (file, _(" export, place into import library instead.\n")); 375 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n")); 376 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n")); 377 fprintf (file, _(" --out-implib <file> Generate import library\n")); 378 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n")); 379 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n")); 380 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\ 381 create __imp_<SYMBOL> as well.\n")); 382 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\ 383 unless user specifies one\n")); 384 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n")); 385 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\ 386 an importlib, use <string><basename>.dll\n\ 387 in preference to lib<basename>.dll \n")); 388 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\ 389 __imp_sym for DATA references\n")); 390 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n")); 391 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\ 392 adding pseudo-relocations resolved at\n\ 393 runtime.\n")); 394 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\ 395 auto-imported DATA.\n")); 396 fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\ 397 or linking to DLLs (esp. auto-import)\n")); 398 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\ 399 executable image files\n")); 400 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\ 401 in object files\n")); 402 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\ 403 address space layout randomization (ASLR)\n")); 404 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n")); 405 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n")); 406 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n")); 407 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\ 408 be called in this image\n")); 409 fprintf (file, _(" --no-bind Do not bind this image\n")); 410 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n")); 411 fprintf (file, _(" --tsaware Image is Terminal Server aware\n")); 412#endif 413} 414 415 416static void 417set_pep_name (char *name, bfd_vma val) 418{ 419 int i; 420 is_underscoring (); 421 /* Find the name and set it. */ 422 for (i = 0; init[i].ptr; i++) 423 { 424 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0) 425 { 426 init[i].value = val; 427 init[i].inited = 1; 428 if (strcmp (name,"__image_base__") == 0) 429 set_pep_name (U ("__ImageBase"), val); 430 return; 431 } 432 } 433 abort (); 434} 435 436static void 437set_entry_point (void) 438{ 439 const char *entry; 440 const char *initial_symbol_char; 441 int i; 442 443 static const struct 444 { 445 const int value; 446 const char *entry; 447 } 448 v[] = 449 { 450 { 1, "NtProcessStartup" }, 451 { 2, "WinMainCRTStartup" }, 452 { 3, "mainCRTStartup" }, 453 { 7, "__PosixProcessStartup" }, 454 { 9, "WinMainCRTStartup" }, 455 {14, "mainCRTStartup" }, 456 { 0, NULL } 457 }; 458 459 /* Entry point name for arbitrary subsystem numbers. */ 460 static const char default_entry[] = "mainCRTStartup"; 461 462 if (link_info.shared || dll) 463 { 464 entry = "DllMainCRTStartup"; 465 } 466 else 467 { 468 for (i = 0; v[i].entry; i++) 469 if (v[i].value == pep_subsystem) 470 break; 471 472 /* If no match, use the default. */ 473 if (v[i].entry != NULL) 474 entry = v[i].entry; 475 else 476 entry = default_entry; 477 } 478 479 /* Now we check target's default for getting proper symbol_char. */ 480 initial_symbol_char = (is_underscoring () != 0 ? "_" : ""); 481 482 if (*initial_symbol_char != '\0') 483 { 484 char *alc_entry; 485 486 /* lang_default_entry expects its argument to be permanently 487 allocated, so we don't free this string. */ 488 alc_entry = xmalloc (strlen (initial_symbol_char) 489 + strlen (entry) 490 + 1); 491 strcpy (alc_entry, initial_symbol_char); 492 strcat (alc_entry, entry); 493 entry = alc_entry; 494 } 495 496 lang_default_entry (entry); 497} 498 499static void 500set_pep_subsystem (void) 501{ 502 const char *sver; 503 char *end; 504 int len; 505 int i; 506 unsigned long temp_subsystem; 507 static const struct 508 { 509 const char *name; 510 const int value; 511 } 512 v[] = 513 { 514 { "native", 1 }, 515 { "windows", 2 }, 516 { "console", 3 }, 517 { "posix", 7 }, 518 { "wince", 9 }, 519 { "xbox", 14 }, 520 { NULL, 0 } 521 }; 522 523 /* Check for the presence of a version number. */ 524 sver = strchr (optarg, ':'); 525 if (sver == NULL) 526 len = strlen (optarg); 527 else 528 { 529 len = sver - optarg; 530 set_pep_name ("__major_subsystem_version__", 531 strtoul (sver + 1, &end, 0)); 532 if (*end == '.') 533 set_pep_name ("__minor_subsystem_version__", 534 strtoul (end + 1, &end, 0)); 535 if (*end != '\0') 536 einfo (_("%P: warning: bad version number in -subsystem option\n")); 537 } 538 539 /* Check for numeric subsystem. */ 540 temp_subsystem = strtoul (optarg, & end, 0); 541 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536)) 542 { 543 /* Search list for a numeric match to use its entry point. */ 544 for (i = 0; v[i].name; i++) 545 if (v[i].value == (int) temp_subsystem) 546 break; 547 548 /* Use this subsystem. */ 549 pep_subsystem = (int) temp_subsystem; 550 } 551 else 552 { 553 /* Search for subsystem by name. */ 554 for (i = 0; v[i].name; i++) 555 if (strncmp (optarg, v[i].name, len) == 0 556 && v[i].name[len] == '\0') 557 break; 558 559 if (v[i].name == NULL) 560 { 561 einfo (_("%P%F: invalid subsystem type %s\n"), optarg); 562 return; 563 } 564 565 pep_subsystem = v[i].value; 566 } 567 568 set_pep_name ("__subsystem__", pep_subsystem); 569 570 return; 571} 572 573 574static void 575set_pep_value (char *name) 576{ 577 char *end; 578 579 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0)); 580 581 if (end == optarg) 582 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg); 583 584 optarg = end; 585} 586 587 588static void 589set_pep_stack_heap (char *resname, char *comname) 590{ 591 set_pep_value (resname); 592 593 if (*optarg == ',') 594 { 595 optarg++; 596 set_pep_value (comname); 597 } 598 else if (*optarg) 599 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg); 600} 601 602 603static bfd_boolean 604gld${EMULATION_NAME}_handle_option (int optc) 605{ 606 is_underscoring (); 607 switch (optc) 608 { 609 default: 610 return FALSE; 611 612 case OPTION_BASE_FILE: 613 link_info.base_file = fopen (optarg, FOPEN_WB); 614 if (link_info.base_file == NULL) 615 einfo (_("%F%P: cannot open base file %s\n"), optarg); 616 break; 617 618 /* PE options. */ 619 case OPTION_HEAP: 620 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); 621 break; 622 case OPTION_STACK: 623 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); 624 break; 625 case OPTION_SUBSYSTEM: 626 set_pep_subsystem (); 627 break; 628 case OPTION_MAJOR_OS_VERSION: 629 set_pep_value ("__major_os_version__"); 630 break; 631 case OPTION_MINOR_OS_VERSION: 632 set_pep_value ("__minor_os_version__"); 633 break; 634 case OPTION_MAJOR_SUBSYSTEM_VERSION: 635 set_pep_value ("__major_subsystem_version__"); 636 break; 637 case OPTION_MINOR_SUBSYSTEM_VERSION: 638 set_pep_value ("__minor_subsystem_version__"); 639 break; 640 case OPTION_MAJOR_IMAGE_VERSION: 641 set_pep_value ("__major_image_version__"); 642 break; 643 case OPTION_MINOR_IMAGE_VERSION: 644 set_pep_value ("__minor_image_version__"); 645 break; 646 case OPTION_FILE_ALIGNMENT: 647 set_pep_value ("__file_alignment__"); 648 break; 649 case OPTION_SECTION_ALIGNMENT: 650 set_pep_value ("__section_alignment__"); 651 break; 652 case OPTION_DLL: 653 set_pep_name ("__dll__", 1); 654 break; 655 case OPTION_IMAGE_BASE: 656 set_pep_value ("__image_base__"); 657 break; 658 case OPTION_SUPPORT_OLD_CODE: 659 support_old_code = 1; 660 break; 661 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES: 662 pep_use_nul_prefixed_import_tables = TRUE; 663 break; 664 case OPTION_NO_LEADING_UNDERSCORE: 665 pep_leading_underscore = 0; 666 break; 667 case OPTION_LEADING_UNDERSCORE: 668 pep_leading_underscore = 1; 669 break; 670#ifdef DLL_SUPPORT 671 case OPTION_OUT_DEF: 672 pep_out_def_filename = xstrdup (optarg); 673 break; 674 case OPTION_EXPORT_ALL: 675 pep_dll_export_everything = 1; 676 break; 677 case OPTION_EXCLUDE_SYMBOLS: 678 pep_dll_add_excludes (optarg, EXCLUDESYMS); 679 break; 680 case OPTION_EXCLUDE_ALL_SYMBOLS: 681 pep_dll_exclude_all_symbols = 1; 682 break; 683 case OPTION_EXCLUDE_LIBS: 684 pep_dll_add_excludes (optarg, EXCLUDELIBS); 685 break; 686 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB: 687 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB); 688 break; 689 case OPTION_KILL_ATS: 690 pep_dll_kill_ats = 1; 691 break; 692 case OPTION_STDCALL_ALIASES: 693 pep_dll_stdcall_aliases = 1; 694 break; 695 case OPTION_ENABLE_STDCALL_FIXUP: 696 pep_enable_stdcall_fixup = 1; 697 break; 698 case OPTION_DISABLE_STDCALL_FIXUP: 699 pep_enable_stdcall_fixup = 0; 700 break; 701 case OPTION_IMPLIB_FILENAME: 702 pep_implib_filename = xstrdup (optarg); 703 break; 704 case OPTION_WARN_DUPLICATE_EXPORTS: 705 pep_dll_warn_dup_exports = 1; 706 break; 707 case OPTION_IMP_COMPAT: 708 pep_dll_compat_implib = 1; 709 break; 710 case OPTION_ENABLE_AUTO_IMAGE_BASE: 711 pep_enable_auto_image_base = 1; 712 break; 713 case OPTION_DISABLE_AUTO_IMAGE_BASE: 714 pep_enable_auto_image_base = 0; 715 break; 716 case OPTION_DLL_SEARCH_PREFIX: 717 pep_dll_search_prefix = xstrdup (optarg); 718 break; 719 case OPTION_NO_DEFAULT_EXCLUDES: 720 pep_dll_do_default_excludes = 0; 721 break; 722 case OPTION_DLL_ENABLE_AUTO_IMPORT: 723 link_info.pei386_auto_import = 1; 724 break; 725 case OPTION_DLL_DISABLE_AUTO_IMPORT: 726 link_info.pei386_auto_import = 0; 727 break; 728 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC: 729 link_info.pei386_runtime_pseudo_reloc = 2; 730 break; 731 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC: 732 link_info.pei386_runtime_pseudo_reloc = 0; 733 break; 734 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2: 735 link_info.pei386_runtime_pseudo_reloc = 2; 736 break; 737 case OPTION_ENABLE_EXTRA_PE_DEBUG: 738 pep_dll_extra_pe_debug = 1; 739 break; 740#endif 741 case OPTION_ENABLE_LONG_SECTION_NAMES: 742 pep_use_coff_long_section_names = 1; 743 break; 744 case OPTION_DISABLE_LONG_SECTION_NAMES: 745 pep_use_coff_long_section_names = 0; 746 break; 747 /* Get DLLCharacteristics bits */ 748 case OPTION_DYNAMIC_BASE: 749 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE; 750 break; 751 case OPTION_FORCE_INTEGRITY: 752 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY; 753 break; 754 case OPTION_NX_COMPAT: 755 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT; 756 break; 757 case OPTION_NO_ISOLATION: 758 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION; 759 break; 760 case OPTION_NO_SEH: 761 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH; 762 break; 763 case OPTION_NO_BIND: 764 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND; 765 break; 766 case OPTION_WDM_DRIVER: 767 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER; 768 break; 769 case OPTION_TERMINAL_SERVER_AWARE: 770 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE; 771 break; 772 } 773 774 /* Set DLLCharacteristics bits */ 775 set_pep_name ("__dll_characteristics__", pe_dll_characteristics); 776 777 return TRUE; 778} 779 780 781#ifdef DLL_SUPPORT 782static unsigned long 783strhash (const char *str) 784{ 785 const unsigned char *s; 786 unsigned long hash; 787 unsigned int c; 788 unsigned int len; 789 790 hash = 0; 791 len = 0; 792 s = (const unsigned char *) str; 793 while ((c = *s++) != '\0') 794 { 795 hash += c + (c << 17); 796 hash ^= hash >> 2; 797 ++len; 798 } 799 hash += len + (len << 17); 800 hash ^= hash >> 2; 801 802 return hash; 803} 804 805/* Use the output file to create a image base for relocatable DLLs. */ 806 807static bfd_vma 808compute_dll_image_base (const char *ofile) 809{ 810 bfd_vma hash = (bfd_vma) strhash (ofile); 811 return 0x61300000 + ((hash << 16) & 0x0FFC0000); 812} 813#endif 814 815/* Assign values to the special symbols before the linker script is 816 read. */ 817 818static void 819gld_${EMULATION_NAME}_set_symbols (void) 820{ 821 /* Run through and invent symbols for all the 822 names and insert the defaults. */ 823 int j; 824 825 is_underscoring (); 826 827 if (!init[IMAGEBASEOFF].inited) 828 { 829 if (link_info.relocatable) 830 init[IMAGEBASEOFF].value = 0; 831 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie)) 832 { 833#ifdef DLL_SUPPORT 834 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base 835 ? compute_dll_image_base (output_filename) 836 : NT_DLL_IMAGE_BASE); 837#else 838 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; 839#endif 840 } 841 else 842 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE; 843 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value; 844 } 845 846 /* Don't do any symbol assignments if this is a relocatable link. */ 847 if (link_info.relocatable) 848 return; 849 850 /* Glue the assignments into the abs section. */ 851 push_stat_ptr (&abs_output_section->children); 852 853 for (j = 0; init[j].ptr; j++) 854 { 855 bfd_vma val = init[j].value; 856 lang_assignment_statement_type *rv; 857 858 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j), 859 exp_intop (val), FALSE)); 860 if (init[j].size == sizeof (short)) 861 *(short *) init[j].ptr = (short) val; 862 else if (init[j].size == sizeof (int)) 863 *(int *) init[j].ptr = (int) val; 864 else if (init[j].size == sizeof (long)) 865 *(long *) init[j].ptr = (long) val; 866 /* This might be a long long or other special type. */ 867 else if (init[j].size == sizeof (bfd_vma)) 868 *(bfd_vma *) init[j].ptr = val; 869 else abort (); 870 if (j == IMAGEBASEOFF) 871 image_base_statement = rv; 872 } 873 /* Restore the pointer. */ 874 pop_stat_ptr (); 875 876 if (pep.FileAlignment > pep.SectionAlignment) 877 { 878 einfo (_("%P: warning, file alignment > section alignment.\n")); 879 } 880} 881 882/* This is called after the linker script and the command line options 883 have been read. */ 884 885static void 886gld_${EMULATION_NAME}_after_parse (void) 887{ 888 /* PR ld/6744: Warn the user if they have used an ELF-only 889 option hoping it will work on PE+. */ 890 if (link_info.export_dynamic) 891 einfo (_("%P: warning: --export-dynamic is not supported for PE+ " 892 "targets, did you mean --export-all-symbols?\n")); 893 894 set_entry_point (); 895 896 after_parse_default (); 897} 898 899/* pep-dll.c directly accesses pep_data_import_dll, 900 so it must be defined outside of #ifdef DLL_SUPPORT. 901 Note - this variable is deliberately not initialised. 902 This allows it to be treated as a common varaible, and only 903 exist in one incarnation in a multiple target enabled linker. */ 904char * pep_data_import_dll; 905 906#ifdef DLL_SUPPORT 907static struct bfd_link_hash_entry *pep_undef_found_sym; 908 909static bfd_boolean 910pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf) 911{ 912 int sl; 913 char *string = inf; 914 const char *hs = h->root.string; 915 916 sl = strlen (string); 917 if (h->type == bfd_link_hash_defined 918 && ((*hs == '@' && *string == '_' 919 && strncmp (hs + 1, string + 1, sl - 1) == 0) 920 || strncmp (hs, string, sl) == 0) 921 && h->root.string[sl] == '@') 922 { 923 pep_undef_found_sym = h; 924 return FALSE; 925 } 926 return TRUE; 927} 928 929static void 930pep_fixup_stdcalls (void) 931{ 932 static int gave_warning_message = 0; 933 struct bfd_link_hash_entry *undef, *sym; 934 935 if (pep_dll_extra_pe_debug) 936 printf ("%s\n", __FUNCTION__); 937 938 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) 939 if (undef->type == bfd_link_hash_undefined) 940 { 941 char* at = strchr (undef->root.string, '@'); 942 int lead_at = (*undef->root.string == '@'); 943 if (lead_at) 944 at = strchr (undef->root.string + 1, '@'); 945 if (at || lead_at) 946 { 947 /* The symbol is a stdcall symbol, so let's look for a 948 cdecl symbol with the same name and resolve to that. */ 949 char *cname = xstrdup (undef->root.string); 950 951 if (lead_at) 952 *cname = '_'; 953 at = strchr (cname, '@'); 954 if (at) 955 *at = 0; 956 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1); 957 958 if (sym && sym->type == bfd_link_hash_defined) 959 { 960 undef->type = bfd_link_hash_defined; 961 undef->u.def.value = sym->u.def.value; 962 undef->u.def.section = sym->u.def.section; 963 964 if (pep_enable_stdcall_fixup == -1) 965 { 966 einfo (_("Warning: resolving %s by linking to %s\n"), 967 undef->root.string, cname); 968 if (! gave_warning_message) 969 { 970 gave_warning_message = 1; 971 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); 972 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); 973 } 974 } 975 } 976 } 977 else 978 { 979 /* The symbol is a cdecl symbol, so we look for stdcall 980 symbols - which means scanning the whole symbol table. */ 981 pep_undef_found_sym = 0; 982 bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match, 983 (char *) undef->root.string); 984 sym = pep_undef_found_sym; 985 if (sym) 986 { 987 undef->type = bfd_link_hash_defined; 988 undef->u.def.value = sym->u.def.value; 989 undef->u.def.section = sym->u.def.section; 990 991 if (pep_enable_stdcall_fixup == -1) 992 { 993 einfo (_("Warning: resolving %s by linking to %s\n"), 994 undef->root.string, sym->root.string); 995 if (! gave_warning_message) 996 { 997 gave_warning_message = 1; 998 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); 999 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); 1000 } 1001 } 1002 } 1003 } 1004 } 1005} 1006 1007static int 1008make_import_fixup (arelent *rel, asection *s) 1009{ 1010 struct bfd_symbol *sym = *rel->sym_ptr_ptr; 1011 char addend[8]; 1012 bfd_vma _addend = 0; 1013 int suc = 0; 1014 1015 if (pep_dll_extra_pe_debug) 1016 printf ("arelent: %s@%#lx: add=%li\n", sym->name, 1017 (unsigned long) rel->address, (long) rel->addend); 1018 1019 memset (addend, 0, sizeof (addend)); 1020 switch ((rel->howto->bitsize)) 1021 { 1022 case 8: 1023 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1); 1024 if (suc && rel->howto->pc_relative) 1025 _addend = (bfd_vma) ((bfd_signed_vma) ((char) bfd_get_8 (s->owner, addend))); 1026 else if (suc) 1027 _addend = ((bfd_vma) bfd_get_8 (s->owner, addend)) & 0xff; 1028 break; 1029 case 16: 1030 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2); 1031 if (suc && rel->howto->pc_relative) 1032 _addend = (bfd_vma) ((bfd_signed_vma) ((short) bfd_get_16 (s->owner, addend))); 1033 else if (suc) 1034 _addend = ((bfd_vma) bfd_get_16 (s->owner, addend)) & 0xffff; 1035 break; 1036 case 32: 1037 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4); 1038 if (suc && rel->howto->pc_relative) 1039 _addend = (bfd_vma) ((bfd_signed_vma) ((int) bfd_get_32 (s->owner, addend))); 1040 else if (suc) 1041 _addend = ((bfd_vma) bfd_get_32 (s->owner, addend)) & 0xffffffff; 1042 break; 1043 case 64: 1044 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8); 1045 if (suc) 1046 _addend = ((bfd_vma) bfd_get_64 (s->owner, addend)); 1047 break; 1048 } 1049 if (! suc) 1050 einfo (_("%C: Cannot get section contents - auto-import exception\n"), 1051 s->owner, s, rel->address); 1052 1053 if (pep_dll_extra_pe_debug) 1054 { 1055 printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", (long) _addend, (long) rel->addend, (long) rel->address); 1056 if (rel->howto->pc_relative) printf (" pcrel"); 1057 printf (" %d bit rel.\n",(int) rel->howto->bitsize); 1058 } 1059 pep_create_import_fixup (rel, s, _addend); 1060 1061 return 1; 1062} 1063 1064static void 1065pep_find_data_imports (void) 1066{ 1067 struct bfd_link_hash_entry *undef, *sym; 1068 1069 if (link_info.pei386_auto_import == 0) 1070 return; 1071 1072 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) 1073 { 1074 if (undef->type == bfd_link_hash_undefined) 1075 { 1076 /* C++ symbols are *long*. */ 1077 char buf[4096]; 1078 1079 if (pep_dll_extra_pe_debug) 1080 printf ("%s:%s\n", __FUNCTION__, undef->root.string); 1081 1082 sprintf (buf, "__imp_%s", undef->root.string); 1083 1084 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); 1085 1086 if (sym && sym->type == bfd_link_hash_defined) 1087 { 1088 bfd *b = sym->u.def.section->owner; 1089 asymbol **symbols; 1090 int nsyms, i; 1091 1092 if (!bfd_generic_link_read_symbols (b)) 1093 { 1094 einfo (_("%B%F: could not read symbols: %E\n"), b); 1095 return; 1096 } 1097 1098 symbols = bfd_get_outsymbols (b); 1099 nsyms = bfd_get_symcount (b); 1100 1101 for (i = 0; i < nsyms; i++) 1102 { 1103 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_"))) 1104 continue; 1105 1106 if (pep_dll_extra_pe_debug) 1107 printf ("->%s\n", symbols[i]->name); 1108 1109 pep_data_import_dll = (char*) (symbols[i]->name + 1110 U_SIZE ("_head_") - 1); 1111 break; 1112 } 1113 1114 pep_walk_relocs_of_symbol (&link_info, undef->root.string, 1115 make_import_fixup); 1116 1117 /* Let's differentiate it somehow from defined. */ 1118 undef->type = bfd_link_hash_defweak; 1119 /* We replace original name with __imp_ prefixed, this 1120 1) may trash memory 2) leads to duplicate symbol generation. 1121 Still, IMHO it's better than having name poluted. */ 1122 undef->root.string = sym->root.string; 1123 undef->u.def.value = sym->u.def.value; 1124 undef->u.def.section = sym->u.def.section; 1125 } 1126 } 1127 } 1128} 1129 1130static bfd_boolean 1131pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED) 1132{ 1133 printf ("+%s\n", h->string); 1134 1135 return TRUE; 1136} 1137#endif /* DLL_SUPPORT */ 1138 1139static void 1140debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj) 1141{ 1142 int *found = (int *) obj; 1143 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0) 1144 *found = 1; 1145} 1146 1147static void 1148gld_${EMULATION_NAME}_after_open (void) 1149{ 1150 after_open_default (); 1151 1152 is_underscoring (); 1153#ifdef DLL_SUPPORT 1154 if (pep_dll_extra_pe_debug) 1155 { 1156 bfd *a; 1157 struct bfd_link_hash_entry *sym; 1158 1159 printf ("%s()\n", __FUNCTION__); 1160 1161 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next) 1162 printf ("-%s\n", sym->root.string); 1163 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL); 1164 1165 for (a = link_info.input_bfds; a; a = a->link_next) 1166 printf ("*%s\n",a->filename); 1167 } 1168#endif 1169 1170 /* Pass the wacky PE command line options into the output bfd. 1171 FIXME: This should be done via a function, rather than by 1172 including an internal BFD header. */ 1173 1174 if (coff_data (link_info.output_bfd) == NULL 1175 || coff_data (link_info.output_bfd)->pe == 0) 1176 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"), 1177 link_info.output_bfd); 1178 1179 pe_data (link_info.output_bfd)->pe_opthdr = pep; 1180 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value; 1181 pe_data (link_info.output_bfd)->real_flags |= real_flags; 1182 1183 /* At this point we must decide whether to use long section names 1184 in the output or not. If the user hasn't explicitly specified 1185 on the command line, we leave it to the default for the format 1186 (object files yes, image files no), except if there is debug 1187 information present; GDB relies on the long section names to 1188 find it, so enable it in that case. */ 1189 if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none) 1190 { 1191 /* Iterate over all sections of all input BFDs, checking 1192 for any that begin 'debug_' and are long names. */ 1193 LANG_FOR_EACH_INPUT_STATEMENT (is) 1194 { 1195 int found_debug = 0; 1196 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug); 1197 if (found_debug) 1198 { 1199 pep_use_coff_long_section_names = 1; 1200 break; 1201 } 1202 } 1203 } 1204 1205 pep_output_file_set_long_section_names (link_info.output_bfd); 1206 1207#ifdef DLL_SUPPORT 1208 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */ 1209 pep_fixup_stdcalls (); 1210 1211 pep_process_import_defs (link_info.output_bfd, &link_info); 1212 1213 pep_find_data_imports (); 1214 1215 /* As possibly new symbols are added by imports, we rerun 1216 stdcall/fastcall fixup here. */ 1217 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */ 1218 pep_fixup_stdcalls (); 1219 1220#ifndef TARGET_IS_i386pep 1221 if (link_info.shared) 1222#else 1223 if (!link_info.relocatable) 1224#endif 1225 pep_dll_build_sections (link_info.output_bfd, &link_info); 1226 1227#ifndef TARGET_IS_i386pep 1228 else 1229 pep_exe_build_sections (link_info.output_bfd, &link_info); 1230#endif 1231#endif /* DLL_SUPPORT */ 1232 1233 { 1234 /* This next chunk of code tries to detect the case where you have 1235 two import libraries for the same DLL (specifically, 1236 symbolically linking libm.a and libc.a in cygwin to 1237 libcygwin.a). In those cases, it's possible for function 1238 thunks from the second implib to be used but without the 1239 head/tail objects, causing an improper import table. We detect 1240 those cases and rename the "other" import libraries to match 1241 the one the head/tail come from, so that the linker will sort 1242 things nicely and produce a valid import table. */ 1243 1244 LANG_FOR_EACH_INPUT_STATEMENT (is) 1245 { 1246 if (is->the_bfd->my_archive) 1247 { 1248 int idata2 = 0, reloc_count=0, is_imp = 0; 1249 asection *sec; 1250 1251 /* See if this is an import library thunk. */ 1252 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1253 { 1254 if (strcmp (sec->name, ".idata\$2") == 0) 1255 idata2 = 1; 1256 if (CONST_STRNEQ (sec->name, ".idata\$")) 1257 is_imp = 1; 1258 reloc_count += sec->reloc_count; 1259 } 1260 1261 if (is_imp && !idata2 && reloc_count) 1262 { 1263 /* It is, look for the reference to head and see if it's 1264 from our own library. */ 1265 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1266 { 1267 int i; 1268 long relsize; 1269 asymbol **symbols; 1270 arelent **relocs; 1271 int nrelocs; 1272 1273 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec); 1274 if (relsize < 1) 1275 break; 1276 1277 if (!bfd_generic_link_read_symbols (is->the_bfd)) 1278 { 1279 einfo (_("%B%F: could not read symbols: %E\n"), 1280 is->the_bfd); 1281 return; 1282 } 1283 symbols = bfd_get_outsymbols (is->the_bfd); 1284 1285 relocs = xmalloc ((size_t) relsize); 1286 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec, 1287 relocs, symbols); 1288 if (nrelocs < 0) 1289 { 1290 free (relocs); 1291 einfo ("%X%P: unable to process relocs: %E\n"); 1292 return; 1293 } 1294 1295 for (i = 0; i < nrelocs; i++) 1296 { 1297 struct bfd_symbol *s; 1298 struct bfd_link_hash_entry * blhe; 1299 char *other_bfd_filename; 1300 char *n; 1301 1302 s = (relocs[i]->sym_ptr_ptr)[0]; 1303 1304 if (s->flags & BSF_LOCAL) 1305 continue; 1306 1307 /* Thunk section with reloc to another bfd. */ 1308 blhe = bfd_link_hash_lookup (link_info.hash, 1309 s->name, 1310 FALSE, FALSE, TRUE); 1311 1312 if (blhe == NULL 1313 || blhe->type != bfd_link_hash_defined) 1314 continue; 1315 1316 other_bfd_filename 1317 = blhe->u.def.section->owner->my_archive 1318 ? bfd_get_filename (blhe->u.def.section->owner->my_archive) 1319 : bfd_get_filename (blhe->u.def.section->owner); 1320 1321 if (filename_cmp (bfd_get_filename 1322 (is->the_bfd->my_archive), 1323 other_bfd_filename) == 0) 1324 continue; 1325 1326 /* Rename this implib to match the other one. */ 1327 n = xmalloc (strlen (other_bfd_filename) + 1); 1328 strcpy (n, other_bfd_filename); 1329 is->the_bfd->my_archive->filename = n; 1330 } 1331 1332 free (relocs); 1333 /* Note - we do not free the symbols, 1334 they are now cached in the BFD. */ 1335 } 1336 } 1337 } 1338 } 1339 } 1340 1341 { 1342 int is_ms_arch = 0; 1343 bfd *cur_arch = 0; 1344 lang_input_statement_type *is2; 1345 lang_input_statement_type *is3; 1346 1347 /* Careful - this is a shell script. Watch those dollar signs! */ 1348 /* Microsoft import libraries have every member named the same, 1349 and not in the right order for us to link them correctly. We 1350 must detect these and rename the members so that they'll link 1351 correctly. There are three types of objects: the head, the 1352 thunks, and the sentinel(s). The head is easy; it's the one 1353 with idata2. We assume that the sentinels won't have relocs, 1354 and the thunks will. It's easier than checking the symbol 1355 table for external references. */ 1356 LANG_FOR_EACH_INPUT_STATEMENT (is) 1357 { 1358 if (is->the_bfd->my_archive) 1359 { 1360 char *pnt; 1361 bfd *arch = is->the_bfd->my_archive; 1362 1363 if (cur_arch != arch) 1364 { 1365 cur_arch = arch; 1366 is_ms_arch = 1; 1367 1368 for (is3 = is; 1369 is3 && is3->the_bfd->my_archive == arch; 1370 is3 = (lang_input_statement_type *) is3->next) 1371 { 1372 /* A MS dynamic import library can also contain static 1373 members, so look for the first element with a .dll 1374 extension, and use that for the remainder of the 1375 comparisons. */ 1376 pnt = strrchr (is3->the_bfd->filename, '.'); 1377 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0) 1378 break; 1379 } 1380 1381 if (is3 == NULL) 1382 is_ms_arch = 0; 1383 else 1384 { 1385 /* OK, found one. Now look to see if the remaining 1386 (dynamic import) members use the same name. */ 1387 for (is2 = is; 1388 is2 && is2->the_bfd->my_archive == arch; 1389 is2 = (lang_input_statement_type *) is2->next) 1390 { 1391 /* Skip static members, ie anything with a .obj 1392 extension. */ 1393 pnt = strrchr (is2->the_bfd->filename, '.'); 1394 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0) 1395 continue; 1396 1397 if (filename_cmp (is3->the_bfd->filename, 1398 is2->the_bfd->filename)) 1399 { 1400 is_ms_arch = 0; 1401 break; 1402 } 1403 } 1404 } 1405 } 1406 1407 /* This fragment might have come from an .obj file in a Microsoft 1408 import, and not an actual import record. If this is the case, 1409 then leave the filename alone. */ 1410 pnt = strrchr (is->the_bfd->filename, '.'); 1411 1412 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0)) 1413 { 1414 int idata2 = 0, reloc_count=0; 1415 asection *sec; 1416 char *new_name, seq; 1417 1418 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1419 { 1420 if (strcmp (sec->name, ".idata\$2") == 0) 1421 idata2 = 1; 1422 reloc_count += sec->reloc_count; 1423 } 1424 1425 if (idata2) /* .idata2 is the TOC */ 1426 seq = 'a'; 1427 else if (reloc_count > 0) /* thunks */ 1428 seq = 'b'; 1429 else /* sentinel */ 1430 seq = 'c'; 1431 1432 new_name = xmalloc (strlen (is->the_bfd->filename) + 3); 1433 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq); 1434 is->the_bfd->filename = new_name; 1435 1436 new_name = xmalloc (strlen (is->filename) + 3); 1437 sprintf (new_name, "%s.%c", is->filename, seq); 1438 is->filename = new_name; 1439 } 1440 } 1441 } 1442 } 1443} 1444 1445static void 1446gld_${EMULATION_NAME}_before_allocation (void) 1447{ 1448 is_underscoring (); 1449 before_allocation_default (); 1450} 1451 1452#ifdef DLL_SUPPORT 1453/* This is called when an input file isn't recognized as a BFD. We 1454 check here for .DEF files and pull them in automatically. */ 1455 1456static int 1457saw_option (char *option) 1458{ 1459 int i; 1460 1461 is_underscoring (); 1462 1463 for (i = 0; init[i].ptr; i++) 1464 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0) 1465 return init[i].inited; 1466 return 0; 1467} 1468#endif /* DLL_SUPPORT */ 1469 1470static bfd_boolean 1471gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) 1472{ 1473#ifdef DLL_SUPPORT 1474 const char *ext = entry->filename + strlen (entry->filename) - 4; 1475 1476 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0) 1477 { 1478 pep_def_file = def_file_parse (entry->filename, pep_def_file); 1479 1480 if (pep_def_file) 1481 { 1482 int i, buflen=0, len; 1483 char *buf; 1484 1485 for (i = 0; i < pep_def_file->num_exports; i++) 1486 { 1487 len = strlen (pep_def_file->exports[i].internal_name); 1488 if (buflen < len + 2) 1489 buflen = len + 2; 1490 } 1491 1492 buf = xmalloc (buflen); 1493 1494 for (i = 0; i < pep_def_file->num_exports; i++) 1495 { 1496 struct bfd_link_hash_entry *h; 1497 1498 sprintf (buf, "%s%s", U (""), 1499 pep_def_file->exports[i].internal_name); 1500 1501 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE); 1502 if (h == (struct bfd_link_hash_entry *) NULL) 1503 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); 1504 if (h->type == bfd_link_hash_new) 1505 { 1506 h->type = bfd_link_hash_undefined; 1507 h->u.undef.abfd = NULL; 1508 bfd_link_add_undef (link_info.hash, h); 1509 } 1510 } 1511 free (buf); 1512 1513 /* def_file_print (stdout, pep_def_file); */ 1514 if (pep_def_file->is_dll == 1) 1515 link_info.shared = 1; 1516 1517 if (pep_def_file->base_address != (bfd_vma)(-1)) 1518 { 1519 pep.ImageBase 1520 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase 1521 = init[IMAGEBASEOFF].value 1522 = pep_def_file->base_address; 1523 init[IMAGEBASEOFF].inited = 1; 1524 if (image_base_statement) 1525 image_base_statement->exp 1526 = exp_assign ("__image_base__", exp_intop (pep.ImageBase), 1527 FALSE); 1528 } 1529 1530 if (pep_def_file->stack_reserve != -1 1531 && ! saw_option ("__size_of_stack_reserve__")) 1532 { 1533 pep.SizeOfStackReserve = pep_def_file->stack_reserve; 1534 if (pep_def_file->stack_commit != -1) 1535 pep.SizeOfStackCommit = pep_def_file->stack_commit; 1536 } 1537 if (pep_def_file->heap_reserve != -1 1538 && ! saw_option ("__size_of_heap_reserve__")) 1539 { 1540 pep.SizeOfHeapReserve = pep_def_file->heap_reserve; 1541 if (pep_def_file->heap_commit != -1) 1542 pep.SizeOfHeapCommit = pep_def_file->heap_commit; 1543 } 1544 return TRUE; 1545 } 1546 } 1547#endif 1548 return FALSE; 1549} 1550 1551static bfd_boolean 1552gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) 1553{ 1554 is_underscoring (); 1555#ifdef DLL_SUPPORT 1556#ifdef TARGET_IS_i386pep 1557 pep_dll_id_target ("pei-x86-64"); 1558#endif 1559 if (pep_bfd_is_dll (entry->the_bfd)) 1560 return pep_implied_import_dll (entry->filename); 1561#endif 1562 return FALSE; 1563} 1564 1565static void 1566gld_${EMULATION_NAME}_finish (void) 1567{ 1568 is_underscoring (); 1569 finish_default (); 1570 1571#ifdef DLL_SUPPORT 1572 if (link_info.shared 1573 || (!link_info.relocatable && pep_def_file->num_exports != 0)) 1574 { 1575 pep_dll_fill_sections (link_info.output_bfd, &link_info); 1576 if (pep_implib_filename) 1577 pep_dll_generate_implib (pep_def_file, pep_implib_filename, &link_info); 1578 } 1579 1580 if (pep_out_def_filename) 1581 pep_dll_generate_def_file (pep_out_def_filename); 1582#endif /* DLL_SUPPORT */ 1583 1584 /* I don't know where .idata gets set as code, but it shouldn't be. */ 1585 { 1586 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata"); 1587 1588 if (asec) 1589 { 1590 asec->flags &= ~SEC_CODE; 1591 asec->flags |= SEC_DATA; 1592 } 1593 } 1594} 1595 1596 1597/* Place an orphan section. 1598 1599 We use this to put sections in a reasonable place in the file, and 1600 to ensure that they are aligned as required. 1601 1602 We handle grouped sections here as well. A section named .foo\$nn 1603 goes into the output section .foo. All grouped sections are sorted 1604 by name. 1605 1606 Grouped sections for the default sections are handled by the 1607 default linker script using wildcards, and are sorted by 1608 sort_sections. */ 1609 1610static lang_output_section_statement_type * 1611gld_${EMULATION_NAME}_place_orphan (asection *s, 1612 const char *secname, 1613 int constraint) 1614{ 1615 const char *orig_secname = secname; 1616 char *dollar = NULL; 1617 lang_output_section_statement_type *os; 1618 lang_statement_list_type add_child; 1619 lang_output_section_statement_type *match_by_name = NULL; 1620 lang_statement_union_type **pl; 1621 1622 /* Look through the script to see where to place this section. */ 1623 if (!link_info.relocatable 1624 && (dollar = strchr (secname, '\$')) != NULL) 1625 { 1626 size_t len = dollar - secname; 1627 char *newname = xmalloc (len + 1); 1628 memcpy (newname, secname, len); 1629 newname[len] = '\0'; 1630 secname = newname; 1631 } 1632 1633 lang_list_init (&add_child); 1634 1635 os = NULL; 1636 if (constraint == 0) 1637 for (os = lang_output_section_find (secname); 1638 os != NULL; 1639 os = next_matching_output_section_statement (os, 0)) 1640 { 1641 /* If we don't match an existing output section, tell 1642 lang_insert_orphan to create a new output section. */ 1643 constraint = SPECIAL; 1644 1645 if (os->bfd_section != NULL 1646 && (os->bfd_section->flags == 0 1647 || ((s->flags ^ os->bfd_section->flags) 1648 & (SEC_LOAD | SEC_ALLOC)) == 0)) 1649 { 1650 /* We already have an output section statement with this 1651 name, and its bfd section has compatible flags. 1652 If the section already exists but does not have any flags set, 1653 then it has been created by the linker, probably as a result of 1654 a --section-start command line switch. */ 1655 lang_add_section (&add_child, s, NULL, os); 1656 break; 1657 } 1658 1659 /* Save unused output sections in case we can match them 1660 against orphans later. */ 1661 if (os->bfd_section == NULL) 1662 match_by_name = os; 1663 } 1664 1665 /* If we didn't match an active output section, see if we matched an 1666 unused one and use that. */ 1667 if (os == NULL && match_by_name) 1668 { 1669 lang_add_section (&match_by_name->children, s, NULL, match_by_name); 1670 return match_by_name; 1671 } 1672 1673 if (os == NULL) 1674 { 1675 static struct orphan_save hold[] = 1676 { 1677 { ".text", 1678 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, 1679 0, 0, 0, 0 }, 1680 { ".idata", 1681 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, 1682 0, 0, 0, 0 }, 1683 { ".rdata", 1684 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, 1685 0, 0, 0, 0 }, 1686 { ".data", 1687 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, 1688 0, 0, 0, 0 }, 1689 { ".bss", 1690 SEC_ALLOC, 1691 0, 0, 0, 0 } 1692 }; 1693 enum orphan_save_index 1694 { 1695 orphan_text = 0, 1696 orphan_idata, 1697 orphan_rodata, 1698 orphan_data, 1699 orphan_bss 1700 }; 1701 static int orphan_init_done = 0; 1702 struct orphan_save *place; 1703 lang_output_section_statement_type *after; 1704 etree_type *address; 1705 1706 if (!orphan_init_done) 1707 { 1708 struct orphan_save *ho; 1709 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) 1710 if (ho->name != NULL) 1711 { 1712 ho->os = lang_output_section_find (ho->name); 1713 if (ho->os != NULL && ho->os->flags == 0) 1714 ho->os->flags = ho->flags; 1715 } 1716 orphan_init_done = 1; 1717 } 1718 1719 /* Try to put the new output section in a reasonable place based 1720 on the section name and section flags. */ 1721 1722 place = NULL; 1723 if ((s->flags & SEC_ALLOC) == 0) 1724 ; 1725 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) 1726 place = &hold[orphan_bss]; 1727 else if ((s->flags & SEC_READONLY) == 0) 1728 place = &hold[orphan_data]; 1729 else if ((s->flags & SEC_CODE) == 0) 1730 { 1731 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata] 1732 : &hold[orphan_rodata]); 1733 } 1734 else 1735 place = &hold[orphan_text]; 1736 1737 after = NULL; 1738 if (place != NULL) 1739 { 1740 if (place->os == NULL) 1741 place->os = lang_output_section_find (place->name); 1742 after = place->os; 1743 if (after == NULL) 1744 after = lang_output_section_find_by_flags (s, &place->os, NULL); 1745 if (after == NULL) 1746 /* *ABS* is always the first output section statement. */ 1747 after = (&lang_output_section_statement.head 1748 ->output_section_statement); 1749 } 1750 1751 /* All sections in an executable must be aligned to a page boundary. 1752 In a relocatable link, just preserve the incoming alignment; the 1753 address is discarded by lang_insert_orphan in that case, anyway. */ 1754 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__")); 1755 os = lang_insert_orphan (s, secname, constraint, after, place, address, 1756 &add_child); 1757 if (link_info.relocatable) 1758 { 1759 os->section_alignment = s->alignment_power; 1760 os->bfd_section->alignment_power = s->alignment_power; 1761 } 1762 } 1763 1764 /* If the section name has a '\$', sort it with the other '\$' 1765 sections. */ 1766 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next) 1767 { 1768 lang_input_section_type *ls; 1769 const char *lname; 1770 1771 if ((*pl)->header.type != lang_input_section_enum) 1772 continue; 1773 1774 ls = &(*pl)->input_section; 1775 1776 lname = bfd_get_section_name (ls->section->owner, ls->section); 1777 if (strchr (lname, '\$') != NULL 1778 && (dollar == NULL || strcmp (orig_secname, lname) < 0)) 1779 break; 1780 } 1781 1782 if (add_child.head != NULL) 1783 { 1784 *add_child.tail = *pl; 1785 *pl = add_child.head; 1786 } 1787 1788 return os; 1789} 1790 1791static bfd_boolean 1792gld_${EMULATION_NAME}_open_dynamic_archive 1793 (const char *arch ATTRIBUTE_UNUSED, 1794 search_dirs_type *search, 1795 lang_input_statement_type *entry) 1796{ 1797 static const struct 1798 { 1799 const char * format; 1800 bfd_boolean use_prefix; 1801 } 1802 libname_fmt [] = 1803 { 1804 /* Preferred explicit import library for dll's. */ 1805 { "lib%s.dll.a", FALSE }, 1806 /* Alternate explicit import library for dll's. */ 1807 { "%s.dll.a", FALSE }, 1808 /* "libfoo.a" could be either an import lib or a static lib. 1809 For backwards compatibility, libfoo.a needs to precede 1810 libfoo.dll and foo.dll in the search. */ 1811 { "lib%s.a", FALSE }, 1812 /* The 'native' spelling of an import lib name is "foo.lib". */ 1813 { "%s.lib", FALSE }, 1814#ifdef DLL_SUPPORT 1815 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */ 1816 { "%s%s.dll", TRUE }, 1817#endif 1818 /* Try "libfoo.dll" (default preferred dll name). */ 1819 { "lib%s.dll", FALSE }, 1820 /* Finally try 'native' dll name "foo.dll". */ 1821 { "%s.dll", FALSE }, 1822 /* Note: If adding more formats to this table, make sure to check to 1823 see if their length is longer than libname_fmt[0].format, and if 1824 so, update the call to xmalloc() below. */ 1825 { NULL, FALSE } 1826 }; 1827 static unsigned int format_max_len = 0; 1828 const char * filename; 1829 char * full_string; 1830 char * base_string; 1831 unsigned int i; 1832 1833 1834 if (! entry->flags.maybe_archive) 1835 return FALSE; 1836 1837 filename = entry->filename; 1838 1839 if (format_max_len == 0) 1840 /* We need to allow space in the memory that we are going to allocate 1841 for the characters in the format string. Since the format array is 1842 static we only need to calculate this information once. In theory 1843 this value could also be computed statically, but this introduces 1844 the possibility for a discrepancy and hence a possible memory 1845 corruption. The lengths we compute here will be too long because 1846 they will include any formating characters (%s) in the strings, but 1847 this will not matter. */ 1848 for (i = 0; libname_fmt[i].format; i++) 1849 if (format_max_len < strlen (libname_fmt[i].format)) 1850 format_max_len = strlen (libname_fmt[i].format); 1851 1852 full_string = xmalloc (strlen (search->name) 1853 + strlen (filename) 1854 + format_max_len 1855#ifdef DLL_SUPPORT 1856 + (pep_dll_search_prefix 1857 ? strlen (pep_dll_search_prefix) : 0) 1858#endif 1859 /* Allow for the terminating NUL and for the path 1860 separator character that is inserted between 1861 search->name and the start of the format string. */ 1862 + 2); 1863 1864 sprintf (full_string, "%s/", search->name); 1865 base_string = full_string + strlen (full_string); 1866 1867 for (i = 0; libname_fmt[i].format; i++) 1868 { 1869#ifdef DLL_SUPPORT 1870 if (libname_fmt[i].use_prefix) 1871 { 1872 if (!pep_dll_search_prefix) 1873 continue; 1874 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename); 1875 } 1876 else 1877#endif 1878 sprintf (base_string, libname_fmt[i].format, filename); 1879 1880 if (ldfile_try_open_bfd (full_string, entry)) 1881 break; 1882 } 1883 1884 if (!libname_fmt[i].format) 1885 { 1886 free (full_string); 1887 return FALSE; 1888 } 1889 1890 entry->filename = full_string; 1891 1892 return TRUE; 1893} 1894 1895static int 1896gld_${EMULATION_NAME}_find_potential_libraries 1897 (char *name, lang_input_statement_type *entry) 1898{ 1899 return ldfile_open_file_search (name, entry, "", ".lib"); 1900} 1901 1902static char * 1903gld_${EMULATION_NAME}_get_script (int *isfile) 1904EOF 1905# Scripts compiled in. 1906# sed commands to quote an ld script as a C string. 1907sc="-f stringify.sed" 1908 1909fragment <<EOF 1910{ 1911 *isfile = 0; 1912 1913 if (link_info.relocatable && config.build_constructors) 1914 return 1915EOF 1916sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c 1917echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c 1918sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c 1919echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c 1920sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c 1921echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c 1922sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c 1923if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then 1924echo ' ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return' >> e${EMULATION_NAME}.c 1925sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c 1926fi 1927echo ' ; else return' >> e${EMULATION_NAME}.c 1928sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c 1929echo '; }' >> e${EMULATION_NAME}.c 1930 1931fragment <<EOF 1932 1933 1934struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = 1935{ 1936 gld_${EMULATION_NAME}_before_parse, 1937 syslib_default, 1938 hll_default, 1939 gld_${EMULATION_NAME}_after_parse, 1940 gld_${EMULATION_NAME}_after_open, 1941 after_allocation_default, 1942 set_output_arch_default, 1943 ldemul_default_target, 1944 gld_${EMULATION_NAME}_before_allocation, 1945 gld_${EMULATION_NAME}_get_script, 1946 "${EMULATION_NAME}", 1947 "${OUTPUT_FORMAT}", 1948 gld_${EMULATION_NAME}_finish, 1949 NULL, /* Create output section statements. */ 1950 gld_${EMULATION_NAME}_open_dynamic_archive, 1951 gld_${EMULATION_NAME}_place_orphan, 1952 gld_${EMULATION_NAME}_set_symbols, 1953 NULL, /* parse_args */ 1954 gld${EMULATION_NAME}_add_options, 1955 gld${EMULATION_NAME}_handle_option, 1956 gld_${EMULATION_NAME}_unrecognized_file, 1957 gld_${EMULATION_NAME}_list_options, 1958 gld_${EMULATION_NAME}_recognized_file, 1959 gld_${EMULATION_NAME}_find_potential_libraries, 1960 NULL /* new_vers_pattern. */ 1961}; 1962EOF 1963