1# This shell script emits a C file. -*- C -*- 2# It does some substitutions. 3test -z "${ENTRY}" && ENTRY="_mainCRTStartup" 4if [ -z "$MACHINE" ]; then 5 OUTPUT_ARCH=${ARCH} 6else 7 OUTPUT_ARCH=${ARCH}:${MACHINE} 8fi 9rm -f e${EMULATION_NAME}.c 10(echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-) 11cat >>e${EMULATION_NAME}.c <<EOF 12/* This file is part of GLD, the Gnu Linker. 13 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 14 2005, 2006, 2007 Free Software Foundation, Inc. 15 16 This program is free software; you can redistribute it and/or modify 17 it under the terms of the GNU General Public License as published by 18 the Free Software Foundation; either version 2 of the License, or 19 (at your option) any later version. 20 21 This program is distributed in the hope that it will be useful, 22 but WITHOUT ANY WARRANTY; without even the implied warranty of 23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 GNU General Public License for more details. 25 26 You should have received a copy of the GNU General Public License 27 along with this program; if not, write to the Free Software 28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 29 30/* For WINDOWS_NT */ 31/* The original file generated returned different default scripts depending 32 on whether certain switches were set, but these switches pertain to the 33 Linux system and that particular version of coff. In the NT case, we 34 only determine if the subsystem is console or windows in order to select 35 the correct entry point by default. */ 36 37#define TARGET_IS_${EMULATION_NAME} 38 39/* Do this before including bfd.h, so we prototype the right functions. */ 40 41#if defined(TARGET_IS_armpe) \ 42 || defined(TARGET_IS_arm_epoc_pe) \ 43 || defined(TARGET_IS_arm_wince_pe) 44#define bfd_arm_allocate_interworking_sections \ 45 bfd_${EMULATION_NAME}_allocate_interworking_sections 46#define bfd_arm_get_bfd_for_interworking \ 47 bfd_${EMULATION_NAME}_get_bfd_for_interworking 48#define bfd_arm_process_before_allocation \ 49 bfd_${EMULATION_NAME}_process_before_allocation 50#endif 51 52#include "sysdep.h" 53#include "bfd.h" 54#include "bfdlink.h" 55#include "getopt.h" 56#include "libiberty.h" 57#include "ld.h" 58#include "ldmain.h" 59#include "ldexp.h" 60#include "ldlang.h" 61#include "ldfile.h" 62#include "ldemul.h" 63#include <ldgram.h> 64#include "ldlex.h" 65#include "ldmisc.h" 66#include "ldctor.h" 67#include "coff/internal.h" 68 69/* FIXME: See bfd/peXXigen.c for why we include an architecture specific 70 header in generic PE code. */ 71#include "coff/i386.h" 72#include "coff/pe.h" 73 74/* FIXME: This is a BFD internal header file, and we should not be 75 using it here. */ 76#include "../bfd/libcoff.h" 77 78#include "deffile.h" 79#include "pe-dll.h" 80#include "safe-ctype.h" 81 82/* Permit the emulation parameters to override the default section 83 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes 84 it seem that include/coff/internal.h should not define 85 PE_DEF_SECTION_ALIGNMENT. */ 86#if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT} 87#undef PE_DEF_SECTION_ALIGNMENT 88#define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT} 89#endif 90 91#if defined(TARGET_IS_i386pe) \ 92 || defined(TARGET_IS_shpe) \ 93 || defined(TARGET_IS_mipspe) \ 94 || defined(TARGET_IS_armpe) \ 95 || defined(TARGET_IS_arm_epoc_pe) \ 96 || defined(TARGET_IS_arm_wince_pe) 97#define DLL_SUPPORT 98#endif 99 100#if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT) 101#define PE_DEF_SUBSYSTEM 3 102#else 103#undef NT_EXE_IMAGE_BASE 104#undef PE_DEF_SECTION_ALIGNMENT 105#undef PE_DEF_FILE_ALIGNMENT 106#define NT_EXE_IMAGE_BASE 0x00010000 107 108#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 109#define PE_DEF_SECTION_ALIGNMENT 0x00001000 110#define PE_DEF_SUBSYSTEM 9 111#else 112#define PE_DEF_SECTION_ALIGNMENT 0x00000400 113#define PE_DEF_SUBSYSTEM 2 114#endif 115#define PE_DEF_FILE_ALIGNMENT 0x00000200 116#endif 117 118#define U(S) ${INITIAL_SYMBOL_CHAR} S 119 120static struct internal_extra_pe_aouthdr pe; 121static int dll; 122static flagword real_flags = 0; 123static int support_old_code = 0; 124static char * thumb_entry_symbol = NULL; 125static lang_assignment_statement_type *image_base_statement = 0; 126 127#ifdef DLL_SUPPORT 128static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */ 129static char *pe_out_def_filename = NULL; 130static char *pe_implib_filename = NULL; 131static int pe_enable_auto_image_base = 0; 132static char *pe_dll_search_prefix = NULL; 133#endif 134 135extern const char *output_filename; 136 137static void 138gld_${EMULATION_NAME}_before_parse (void) 139{ 140 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); 141 output_filename = "${EXECUTABLE_NAME:-a.exe}"; 142#ifdef DLL_SUPPORT 143 config.dynamic_link = TRUE; 144 config.has_shared = 1; 145 link_info.pei386_auto_import = -1; 146 link_info.pei386_runtime_pseudo_reloc = -1; 147 148#if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2) 149#if defined TARGET_IS_mipspe || defined TARGET_IS_armpe || defined TARGET_IS_arm_wince_pe 150 lang_default_entry ("WinMainCRTStartup"); 151#else 152 lang_default_entry ("_WinMainCRTStartup"); 153#endif 154#else 155 lang_default_entry ("${ENTRY}"); 156#endif 157#endif 158} 159 160/* PE format extra command line options. */ 161 162/* Used for setting flags in the PE header. */ 163#define OPTION_BASE_FILE (300 + 1) 164#define OPTION_DLL (OPTION_BASE_FILE + 1) 165#define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1) 166#define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1) 167#define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1) 168#define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1) 169#define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1) 170#define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1) 171#define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1) 172#define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1) 173#define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1) 174#define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1) 175#define OPTION_SUBSYSTEM (OPTION_STACK + 1) 176#define OPTION_HEAP (OPTION_SUBSYSTEM + 1) 177#define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1) 178#define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1) 179#define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1) 180#define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1) 181#define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1) 182#define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1) 183#define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1) 184#define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1) 185#define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1) 186#define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1) 187#define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1) 188#define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1) 189#define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1) 190#define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1) 191#define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1) 192#define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1) 193#define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1) 194#define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1) 195#define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1) 196#define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1) 197#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \ 198 (OPTION_EXCLUDE_LIBS + 1) 199#define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \ 200 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1) 201#define OPTION_LARGE_ADDRESS_AWARE \ 202 (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1) 203 204static void 205gld${EMULATION_NAME}_add_options 206 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl, 207 struct option **longopts, int nrl ATTRIBUTE_UNUSED, 208 struct option **really_longopts ATTRIBUTE_UNUSED) 209{ 210 static const struct option xtra_long[] = { 211 /* PE options */ 212 {"base-file", required_argument, NULL, OPTION_BASE_FILE}, 213 {"dll", no_argument, NULL, OPTION_DLL}, 214 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT}, 215 {"heap", required_argument, NULL, OPTION_HEAP}, 216 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE}, 217 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION}, 218 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION}, 219 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION}, 220 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION}, 221 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION}, 222 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION}, 223 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT}, 224 {"stack", required_argument, NULL, OPTION_STACK}, 225 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM}, 226 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE}, 227 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, 228#ifdef DLL_SUPPORT 229 /* getopt allows abbreviations, so we do this to stop it from treating -o 230 as an abbreviation for this option */ 231 {"output-def", required_argument, NULL, OPTION_OUT_DEF}, 232 {"output-def", required_argument, NULL, OPTION_OUT_DEF}, 233 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL}, 234 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS}, 235 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, 236 {"kill-at", no_argument, NULL, OPTION_KILL_ATS}, 237 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES}, 238 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP}, 239 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP}, 240 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME}, 241 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS}, 242 /* getopt() allows abbreviations, so we do this to stop it from 243 treating -c as an abbreviation for these --compat-implib. */ 244 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, 245 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT}, 246 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE}, 247 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE}, 248 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX}, 249 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES}, 250 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT}, 251 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT}, 252 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG}, 253 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC}, 254 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC}, 255#endif 256 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE}, 257 {NULL, no_argument, NULL, 0} 258 }; 259 260 *longopts = (struct option *) 261 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); 262 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); 263} 264 265/* PE/WIN32; added routines to get the subsystem type, heap and/or stack 266 parameters which may be input from the command line. */ 267 268typedef struct 269{ 270 void *ptr; 271 int size; 272 int value; 273 char *symbol; 274 int inited; 275} definfo; 276 277#define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0} 278 279static definfo init[] = 280{ 281 /* imagebase must be first */ 282#define IMAGEBASEOFF 0 283 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE), 284#define DLLOFF 1 285 {&dll, sizeof(dll), 0, "__dll__", 0}, 286 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT), 287 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT), 288 D(MajorOperatingSystemVersion,"__major_os_version__", 4), 289 D(MinorOperatingSystemVersion,"__minor_os_version__", 0), 290 D(MajorImageVersion,"__major_image_version__", 1), 291 D(MinorImageVersion,"__minor_image_version__", 0), 292#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe) 293 D(MajorSubsystemVersion,"__major_subsystem_version__", 3), 294#else 295 D(MajorSubsystemVersion,"__major_subsystem_version__", 4), 296#endif 297 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0), 298 D(Subsystem,"__subsystem__", ${SUBSYSTEM}), 299 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000), 300 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000), 301 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000), 302 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000), 303 D(LoaderFlags,"__loader_flags__", 0x0), 304 { NULL, 0, 0, NULL, 0 } 305}; 306 307 308static void 309gld_${EMULATION_NAME}_list_options (FILE *file) 310{ 311 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n")); 312 fprintf (file, _(" --dll Set image base to the default for DLLs\n")); 313 fprintf (file, _(" --file-alignment <size> Set file alignment\n")); 314 fprintf (file, _(" --heap <size> Set initial size of the heap\n")); 315 fprintf (file, _(" --image-base <address> Set start address of the executable\n")); 316 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n")); 317 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n")); 318 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n")); 319 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n")); 320 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n")); 321 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n")); 322 fprintf (file, _(" --section-alignment <size> Set section alignment\n")); 323 fprintf (file, _(" --stack <size> Set size of the initial stack\n")); 324 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n")); 325 fprintf (file, _(" --support-old-code Support interworking with old code\n")); 326 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n")); 327#ifdef DLL_SUPPORT 328 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n")); 329 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n")); 330 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n")); 331 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n")); 332 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n")); 333 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n")); 334 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n")); 335 fprintf (file, _(" --out-implib <file> Generate import library\n")); 336 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n")); 337 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n")); 338 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\ 339 create __imp_<SYMBOL> as well.\n")); 340 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\ 341 unless user specifies one\n")); 342 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n")); 343 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\ 344 an importlib, use <string><basename>.dll\n\ 345 in preference to lib<basename>.dll \n")); 346 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\ 347 __imp_sym for DATA references\n")); 348 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n")); 349 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\ 350 adding pseudo-relocations resolved at\n\ 351 runtime.\n")); 352 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\ 353 auto-imported DATA.\n")); 354 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\ 355 or linking to DLLs (esp. auto-import)\n")); 356#endif 357 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\ 358 greater than 2 gigabytes\n")); 359} 360 361 362static void 363set_pe_name (char *name, long val) 364{ 365 int i; 366 367 /* Find the name and set it. */ 368 for (i = 0; init[i].ptr; i++) 369 { 370 if (strcmp (name, init[i].symbol) == 0) 371 { 372 init[i].value = val; 373 init[i].inited = 1; 374 return; 375 } 376 } 377 abort (); 378} 379 380 381static void 382set_pe_subsystem (void) 383{ 384 const char *sver; 385 const char *entry; 386 const char *initial_symbol_char; 387 char *end; 388 int len; 389 int i; 390 int subsystem; 391 unsigned long temp_subsystem; 392 static const struct 393 { 394 const char *name; 395 const int value; 396 const char *entry; 397 } 398 v[] = 399 { 400 { "native", 1, "NtProcessStartup" }, 401 { "windows", 2, "WinMainCRTStartup" }, 402 { "console", 3, "mainCRTStartup" }, 403 { "posix", 7, "__PosixProcessStartup"}, 404 { "wince", 9, "WinMainCRTStartup" }, 405 { "xbox", 14, "mainCRTStartup" }, 406 { NULL, 0, NULL } 407 }; 408 /* Entry point name for arbitrary subsystem numbers. */ 409 static const char default_entry[] = "mainCRTStartup"; 410 411 /* Check for the presence of a version number. */ 412 sver = strchr (optarg, ':'); 413 if (sver == NULL) 414 len = strlen (optarg); 415 else 416 { 417 len = sver - optarg; 418 set_pe_name ("__major_subsystem_version__", 419 strtoul (sver + 1, &end, 0)); 420 if (*end == '.') 421 set_pe_name ("__minor_subsystem_version__", 422 strtoul (end + 1, &end, 0)); 423 if (*end != '\0') 424 einfo (_("%P: warning: bad version number in -subsystem option\n")); 425 } 426 427 /* Check for numeric subsystem. */ 428 temp_subsystem = strtoul (optarg, & end, 0); 429 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536)) 430 { 431 /* Search list for a numeric match to use its entry point. */ 432 for (i = 0; v[i].name; i++) 433 if (v[i].value == (int) temp_subsystem) 434 break; 435 436 /* If no match, use the default. */ 437 if (v[i].name != NULL) 438 entry = v[i].entry; 439 else 440 entry = default_entry; 441 442 /* Use this subsystem. */ 443 subsystem = (int) temp_subsystem; 444 } 445 else 446 { 447 /* Search for subsystem by name. */ 448 for (i = 0; v[i].name; i++) 449 if (strncmp (optarg, v[i].name, len) == 0 450 && v[i].name[len] == '\0') 451 break; 452 453 if (v[i].name == NULL) 454 { 455 einfo (_("%P%F: invalid subsystem type %s\n"), optarg); 456 return; 457 } 458 459 entry = v[i].entry; 460 subsystem = v[i].value; 461 } 462 463 set_pe_name ("__subsystem__", subsystem); 464 465 initial_symbol_char = ${INITIAL_SYMBOL_CHAR}; 466 if (*initial_symbol_char != '\0') 467 { 468 char *alc_entry; 469 470 /* lang_default_entry expects its argument to be permanently 471 allocated, so we don't free this string. */ 472 alc_entry = xmalloc (strlen (initial_symbol_char) 473 + strlen (entry) 474 + 1); 475 strcpy (alc_entry, initial_symbol_char); 476 strcat (alc_entry, entry); 477 entry = alc_entry; 478 } 479 480 lang_default_entry (entry); 481 482 return; 483} 484 485 486static void 487set_pe_value (char *name) 488{ 489 char *end; 490 491 set_pe_name (name, strtoul (optarg, &end, 0)); 492 493 if (end == optarg) 494 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg); 495 496 optarg = end; 497} 498 499 500static void 501set_pe_stack_heap (char *resname, char *comname) 502{ 503 set_pe_value (resname); 504 505 if (*optarg == ',') 506 { 507 optarg++; 508 set_pe_value (comname); 509 } 510 else if (*optarg) 511 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg); 512} 513 514 515static bfd_boolean 516gld${EMULATION_NAME}_handle_option (int optc) 517{ 518 switch (optc) 519 { 520 default: 521 return FALSE; 522 523 case OPTION_BASE_FILE: 524 link_info.base_file = fopen (optarg, FOPEN_WB); 525 if (link_info.base_file == NULL) 526 { 527 /* xgettext:c-format */ 528 fprintf (stderr, _("%s: Can't open base file %s\n"), 529 program_name, optarg); 530 xexit (1); 531 } 532 break; 533 534 /* PE options. */ 535 case OPTION_HEAP: 536 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__"); 537 break; 538 case OPTION_STACK: 539 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__"); 540 break; 541 case OPTION_SUBSYSTEM: 542 set_pe_subsystem (); 543 break; 544 case OPTION_MAJOR_OS_VERSION: 545 set_pe_value ("__major_os_version__"); 546 break; 547 case OPTION_MINOR_OS_VERSION: 548 set_pe_value ("__minor_os_version__"); 549 break; 550 case OPTION_MAJOR_SUBSYSTEM_VERSION: 551 set_pe_value ("__major_subsystem_version__"); 552 break; 553 case OPTION_MINOR_SUBSYSTEM_VERSION: 554 set_pe_value ("__minor_subsystem_version__"); 555 break; 556 case OPTION_MAJOR_IMAGE_VERSION: 557 set_pe_value ("__major_image_version__"); 558 break; 559 case OPTION_MINOR_IMAGE_VERSION: 560 set_pe_value ("__minor_image_version__"); 561 break; 562 case OPTION_FILE_ALIGNMENT: 563 set_pe_value ("__file_alignment__"); 564 break; 565 case OPTION_SECTION_ALIGNMENT: 566 set_pe_value ("__section_alignment__"); 567 break; 568 case OPTION_DLL: 569 set_pe_name ("__dll__", 1); 570 break; 571 case OPTION_IMAGE_BASE: 572 set_pe_value ("__image_base__"); 573 break; 574 case OPTION_SUPPORT_OLD_CODE: 575 support_old_code = 1; 576 break; 577 case OPTION_THUMB_ENTRY: 578 thumb_entry_symbol = optarg; 579 break; 580#ifdef DLL_SUPPORT 581 case OPTION_OUT_DEF: 582 pe_out_def_filename = xstrdup (optarg); 583 break; 584 case OPTION_EXPORT_ALL: 585 pe_dll_export_everything = 1; 586 break; 587 case OPTION_EXCLUDE_SYMBOLS: 588 pe_dll_add_excludes (optarg, 0); 589 break; 590 case OPTION_EXCLUDE_LIBS: 591 pe_dll_add_excludes (optarg, 1); 592 break; 593 case OPTION_KILL_ATS: 594 pe_dll_kill_ats = 1; 595 break; 596 case OPTION_STDCALL_ALIASES: 597 pe_dll_stdcall_aliases = 1; 598 break; 599 case OPTION_ENABLE_STDCALL_FIXUP: 600 pe_enable_stdcall_fixup = 1; 601 break; 602 case OPTION_DISABLE_STDCALL_FIXUP: 603 pe_enable_stdcall_fixup = 0; 604 break; 605 case OPTION_IMPLIB_FILENAME: 606 pe_implib_filename = xstrdup (optarg); 607 break; 608 case OPTION_WARN_DUPLICATE_EXPORTS: 609 pe_dll_warn_dup_exports = 1; 610 break; 611 case OPTION_IMP_COMPAT: 612 pe_dll_compat_implib = 1; 613 break; 614 case OPTION_ENABLE_AUTO_IMAGE_BASE: 615 pe_enable_auto_image_base = 1; 616 break; 617 case OPTION_DISABLE_AUTO_IMAGE_BASE: 618 pe_enable_auto_image_base = 0; 619 break; 620 case OPTION_DLL_SEARCH_PREFIX: 621 pe_dll_search_prefix = xstrdup (optarg); 622 break; 623 case OPTION_NO_DEFAULT_EXCLUDES: 624 pe_dll_do_default_excludes = 0; 625 break; 626 case OPTION_DLL_ENABLE_AUTO_IMPORT: 627 link_info.pei386_auto_import = 1; 628 break; 629 case OPTION_DLL_DISABLE_AUTO_IMPORT: 630 link_info.pei386_auto_import = 0; 631 break; 632 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC: 633 link_info.pei386_runtime_pseudo_reloc = 1; 634 break; 635 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC: 636 link_info.pei386_runtime_pseudo_reloc = 0; 637 break; 638 case OPTION_ENABLE_EXTRA_PE_DEBUG: 639 pe_dll_extra_pe_debug = 1; 640 break; 641#endif 642 case OPTION_LARGE_ADDRESS_AWARE: 643 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE; 644 break; 645 } 646 return TRUE; 647} 648 649 650#ifdef DLL_SUPPORT 651static unsigned long 652strhash (const char *str) 653{ 654 const unsigned char *s; 655 unsigned long hash; 656 unsigned int c; 657 unsigned int len; 658 659 hash = 0; 660 len = 0; 661 s = (const unsigned char *) str; 662 while ((c = *s++) != '\0') 663 { 664 hash += c + (c << 17); 665 hash ^= hash >> 2; 666 ++len; 667 } 668 hash += len + (len << 17); 669 hash ^= hash >> 2; 670 671 return hash; 672} 673 674/* Use the output file to create a image base for relocatable DLLs. */ 675 676static unsigned long 677compute_dll_image_base (const char *ofile) 678{ 679 unsigned long hash = strhash (ofile); 680 return 0x61300000 + ((hash << 16) & 0x0FFC0000); 681} 682#endif 683 684/* Assign values to the special symbols before the linker script is 685 read. */ 686 687static void 688gld_${EMULATION_NAME}_set_symbols (void) 689{ 690 /* Run through and invent symbols for all the 691 names and insert the defaults. */ 692 int j; 693 lang_statement_list_type *save; 694 695 if (!init[IMAGEBASEOFF].inited) 696 { 697 if (link_info.relocatable) 698 init[IMAGEBASEOFF].value = 0; 699 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie)) 700#ifdef DLL_SUPPORT 701 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ? 702 compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE; 703#else 704 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE; 705#endif 706 else 707 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE; 708 } 709 710 /* Don't do any symbol assignments if this is a relocatable link. */ 711 if (link_info.relocatable) 712 return; 713 714 /* Glue the assignments into the abs section. */ 715 save = stat_ptr; 716 717 stat_ptr = &(abs_output_section->children); 718 719 for (j = 0; init[j].ptr; j++) 720 { 721 long val = init[j].value; 722 lang_assignment_statement_type *rv; 723 rv = lang_add_assignment (exp_assop ('=', init[j].symbol, 724 exp_intop (val))); 725 if (init[j].size == sizeof (short)) 726 *(short *) init[j].ptr = val; 727 else if (init[j].size == sizeof (int)) 728 *(int *) init[j].ptr = val; 729 else if (init[j].size == sizeof (long)) 730 *(long *) init[j].ptr = val; 731 /* This might be a long long or other special type. */ 732 else if (init[j].size == sizeof (bfd_vma)) 733 *(bfd_vma *) init[j].ptr = val; 734 else abort (); 735 if (j == IMAGEBASEOFF) 736 image_base_statement = rv; 737 } 738 /* Restore the pointer. */ 739 stat_ptr = save; 740 741 if (pe.FileAlignment > 742 pe.SectionAlignment) 743 { 744 einfo (_("%P: warning, file alignment > section alignment.\n")); 745 } 746} 747 748/* This is called after the linker script and the command line options 749 have been read. */ 750 751static void 752gld_${EMULATION_NAME}_after_parse (void) 753{ 754 /* The Windows libraries are designed for the linker to treat the 755 entry point as an undefined symbol. Otherwise, the .obj that 756 defines mainCRTStartup is brought in because it is the first 757 encountered in libc.lib and it has other symbols in it which will 758 be pulled in by the link process. To avoid this, we act as 759 though the user specified -u with the entry point symbol. 760 761 This function is called after the linker script and command line 762 options have been read, so at this point we know the right entry 763 point. This function is called before the input files are 764 opened, so registering the symbol as undefined will make a 765 difference. */ 766 767 if (! link_info.relocatable && entry_symbol.name != NULL) 768 ldlang_add_undef (entry_symbol.name); 769} 770 771/* pe-dll.c directly accesses pe_data_import_dll, 772 so it must be defined outside of #ifdef DLL_SUPPORT. 773 Note - this variable is deliberately not initialised. 774 This allows it to be treated as a common varaible, and only 775 exist in one incarnation in a multiple target enabled linker. */ 776char * pe_data_import_dll; 777 778#ifdef DLL_SUPPORT 779static struct bfd_link_hash_entry *pe_undef_found_sym; 780 781static bfd_boolean 782pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf) 783{ 784 int sl; 785 char *string = inf; 786 787 sl = strlen (string); 788 if (h->type == bfd_link_hash_defined 789 && strncmp (h->root.string, string, sl) == 0 790 && h->root.string[sl] == '@') 791 { 792 pe_undef_found_sym = h; 793 return FALSE; 794 } 795 return TRUE; 796} 797 798static void 799pe_fixup_stdcalls (void) 800{ 801 static int gave_warning_message = 0; 802 struct bfd_link_hash_entry *undef, *sym; 803 804 if (pe_dll_extra_pe_debug) 805 printf ("%s\n", __FUNCTION__); 806 807 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) 808 if (undef->type == bfd_link_hash_undefined) 809 { 810 char* at = strchr (undef->root.string, '@'); 811 int lead_at = (*undef->root.string == '@'); 812 /* For now, don't try to fixup fastcall symbols. */ 813 814 if (at && !lead_at) 815 { 816 /* The symbol is a stdcall symbol, so let's look for a 817 cdecl symbol with the same name and resolve to that. */ 818 char *cname = xstrdup (undef->root.string /* + lead_at */); 819 at = strchr (cname, '@'); 820 *at = 0; 821 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1); 822 823 if (sym && sym->type == bfd_link_hash_defined) 824 { 825 undef->type = bfd_link_hash_defined; 826 undef->u.def.value = sym->u.def.value; 827 undef->u.def.section = sym->u.def.section; 828 829 if (pe_enable_stdcall_fixup == -1) 830 { 831 einfo (_("Warning: resolving %s by linking to %s\n"), 832 undef->root.string, cname); 833 if (! gave_warning_message) 834 { 835 gave_warning_message = 1; 836 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); 837 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); 838 } 839 } 840 } 841 } 842 else 843 { 844 /* The symbol is a cdecl symbol, so we look for stdcall 845 symbols - which means scanning the whole symbol table. */ 846 pe_undef_found_sym = 0; 847 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match, 848 (char *) undef->root.string); 849 sym = pe_undef_found_sym; 850 if (sym) 851 { 852 undef->type = bfd_link_hash_defined; 853 undef->u.def.value = sym->u.def.value; 854 undef->u.def.section = sym->u.def.section; 855 856 if (pe_enable_stdcall_fixup == -1) 857 { 858 einfo (_("Warning: resolving %s by linking to %s\n"), 859 undef->root.string, sym->root.string); 860 if (! gave_warning_message) 861 { 862 gave_warning_message = 1; 863 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n")); 864 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n")); 865 } 866 } 867 } 868 } 869 } 870} 871 872static int 873make_import_fixup (arelent *rel, asection *s) 874{ 875 struct bfd_symbol *sym = *rel->sym_ptr_ptr; 876 char addend[4]; 877 878 if (pe_dll_extra_pe_debug) 879 printf ("arelent: %s@%#lx: add=%li\n", sym->name, 880 (long) rel->address, (long) rel->addend); 881 882 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend))) 883 einfo (_("%C: Cannot get section contents - auto-import exception\n"), 884 s->owner, s, rel->address); 885 886 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend)); 887 888 return 1; 889} 890 891static void 892pe_find_data_imports (void) 893{ 894 struct bfd_link_hash_entry *undef, *sym; 895 896 if (link_info.pei386_auto_import == 0) 897 return; 898 899 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next) 900 { 901 if (undef->type == bfd_link_hash_undefined) 902 { 903 /* C++ symbols are *long*. */ 904 char buf[4096]; 905 906 if (pe_dll_extra_pe_debug) 907 printf ("%s:%s\n", __FUNCTION__, undef->root.string); 908 909 sprintf (buf, "__imp_%s", undef->root.string); 910 911 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); 912 913 if (sym && sym->type == bfd_link_hash_defined) 914 { 915 bfd *b = sym->u.def.section->owner; 916 asymbol **symbols; 917 int nsyms, symsize, i; 918 919 if (link_info.pei386_auto_import == -1) 920 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"), 921 undef->root.string, buf); 922 923 symsize = bfd_get_symtab_upper_bound (b); 924 symbols = (asymbol **) xmalloc (symsize); 925 nsyms = bfd_canonicalize_symtab (b, symbols); 926 927 for (i = 0; i < nsyms; i++) 928 { 929 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_"))) 930 continue; 931 932 if (pe_dll_extra_pe_debug) 933 printf ("->%s\n", symbols[i]->name); 934 935 pe_data_import_dll = (char*) (symbols[i]->name + 936 sizeof (U ("_head_")) - 1); 937 break; 938 } 939 940 pe_walk_relocs_of_symbol (&link_info, undef->root.string, 941 make_import_fixup); 942 943 /* Let's differentiate it somehow from defined. */ 944 undef->type = bfd_link_hash_defweak; 945 /* We replace original name with __imp_ prefixed, this 946 1) may trash memory 2) leads to duplicate symbol generation. 947 Still, IMHO it's better than having name poluted. */ 948 undef->root.string = sym->root.string; 949 undef->u.def.value = sym->u.def.value; 950 undef->u.def.section = sym->u.def.section; 951 } 952 } 953 } 954} 955 956static bfd_boolean 957pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED) 958{ 959 if (pe_dll_extra_pe_debug) 960 printf ("+%s\n", h->string); 961 962 return TRUE; 963} 964#endif /* DLL_SUPPORT */ 965 966 967static void 968gld_${EMULATION_NAME}_after_open (void) 969{ 970#ifdef DLL_SUPPORT 971 if (pe_dll_extra_pe_debug) 972 { 973 bfd *a; 974 struct bfd_link_hash_entry *sym; 975 976 printf ("%s()\n", __FUNCTION__); 977 978 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next) 979 printf ("-%s\n", sym->root.string); 980 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL); 981 982 for (a = link_info.input_bfds; a; a = a->link_next) 983 printf ("*%s\n",a->filename); 984 } 985#endif 986 987 /* Pass the wacky PE command line options into the output bfd. 988 FIXME: This should be done via a function, rather than by 989 including an internal BFD header. */ 990 991 if (coff_data (output_bfd) == NULL || coff_data (output_bfd)->pe == 0) 992 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"), output_bfd); 993 994 pe_data (output_bfd)->pe_opthdr = pe; 995 pe_data (output_bfd)->dll = init[DLLOFF].value; 996 pe_data (output_bfd)->real_flags |= real_flags; 997 998#ifdef DLL_SUPPORT 999 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */ 1000 pe_fixup_stdcalls (); 1001 1002 pe_process_import_defs (output_bfd, & link_info); 1003 1004 pe_find_data_imports (); 1005 1006#if defined (TARGET_IS_i386pe) \ 1007 || defined (TARGET_IS_armpe) \ 1008 || defined (TARGET_IS_arm_epoc_pe) \ 1009 || defined (TARGET_IS_arm_wince_pe) 1010 if (!link_info.relocatable) 1011 pe_dll_build_sections (output_bfd, &link_info); 1012 else 1013 pe_exe_build_sections (output_bfd, &link_info); 1014#else 1015 if (link_info.shared) 1016 pe_dll_build_sections (output_bfd, &link_info); 1017#endif 1018#endif /* DLL_SUPPORT */ 1019 1020#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) 1021 if (strstr (bfd_get_target (output_bfd), "arm") == NULL) 1022 { 1023 /* The arm backend needs special fields in the output hash structure. 1024 These will only be created if the output format is an arm format, 1025 hence we do not support linking and changing output formats at the 1026 same time. Use a link followed by objcopy to change output formats. */ 1027 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n"); 1028 return; 1029 } 1030 { 1031 /* Find a BFD that can hold the interworking stubs. */ 1032 LANG_FOR_EACH_INPUT_STATEMENT (is) 1033 { 1034 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info)) 1035 break; 1036 } 1037 } 1038#endif 1039 1040 { 1041 /* This next chunk of code tries to detect the case where you have 1042 two import libraries for the same DLL (specifically, 1043 symbolically linking libm.a and libc.a in cygwin to 1044 libcygwin.a). In those cases, it's possible for function 1045 thunks from the second implib to be used but without the 1046 head/tail objects, causing an improper import table. We detect 1047 those cases and rename the "other" import libraries to match 1048 the one the head/tail come from, so that the linker will sort 1049 things nicely and produce a valid import table. */ 1050 1051 LANG_FOR_EACH_INPUT_STATEMENT (is) 1052 { 1053 if (is->the_bfd->my_archive) 1054 { 1055 int idata2 = 0, reloc_count=0, is_imp = 0; 1056 asection *sec; 1057 1058 /* See if this is an import library thunk. */ 1059 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1060 { 1061 if (strcmp (sec->name, ".idata\$2") == 0) 1062 idata2 = 1; 1063 if (CONST_STRNEQ (sec->name, ".idata\$")) 1064 is_imp = 1; 1065 reloc_count += sec->reloc_count; 1066 } 1067 1068 if (is_imp && !idata2 && reloc_count) 1069 { 1070 /* It is, look for the reference to head and see if it's 1071 from our own library. */ 1072 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1073 { 1074 int i; 1075 long symsize; 1076 long relsize; 1077 asymbol **symbols; 1078 arelent **relocs; 1079 int nrelocs; 1080 1081 symsize = bfd_get_symtab_upper_bound (is->the_bfd); 1082 if (symsize < 1) 1083 break; 1084 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec); 1085 if (relsize < 1) 1086 break; 1087 1088 symbols = (asymbol **) xmalloc (symsize); 1089 symsize = bfd_canonicalize_symtab (is->the_bfd, symbols); 1090 if (symsize < 0) 1091 { 1092 einfo ("%X%P: unable to process symbols: %E"); 1093 return; 1094 } 1095 1096 relocs = (arelent **) xmalloc ((size_t) relsize); 1097 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec, 1098 relocs, symbols); 1099 if (nrelocs < 0) 1100 { 1101 free (relocs); 1102 einfo ("%X%P: unable to process relocs: %E"); 1103 return; 1104 } 1105 1106 for (i = 0; i < nrelocs; i++) 1107 { 1108 struct bfd_symbol *s; 1109 struct bfd_link_hash_entry * blhe; 1110 char *other_bfd_filename; 1111 char *n; 1112 1113 s = (relocs[i]->sym_ptr_ptr)[0]; 1114 1115 if (s->flags & BSF_LOCAL) 1116 continue; 1117 1118 /* Thunk section with reloc to another bfd. */ 1119 blhe = bfd_link_hash_lookup (link_info.hash, 1120 s->name, 1121 FALSE, FALSE, TRUE); 1122 1123 if (blhe == NULL 1124 || blhe->type != bfd_link_hash_defined) 1125 continue; 1126 1127 other_bfd_filename 1128 = blhe->u.def.section->owner->my_archive 1129 ? bfd_get_filename (blhe->u.def.section->owner->my_archive) 1130 : bfd_get_filename (blhe->u.def.section->owner); 1131 1132 if (strcmp (bfd_get_filename (is->the_bfd->my_archive), 1133 other_bfd_filename) == 0) 1134 continue; 1135 1136 /* Rename this implib to match the other one. */ 1137 n = xmalloc (strlen (other_bfd_filename) + 1); 1138 strcpy (n, other_bfd_filename); 1139 is->the_bfd->my_archive->filename = n; 1140 } 1141 1142 free (relocs); 1143 /* Note - we do not free the symbols, 1144 they are now cached in the BFD. */ 1145 } 1146 } 1147 } 1148 } 1149 } 1150 1151 { 1152 int is_ms_arch = 0; 1153 bfd *cur_arch = 0; 1154 lang_input_statement_type *is2; 1155 lang_input_statement_type *is3; 1156 1157 /* Careful - this is a shell script. Watch those dollar signs! */ 1158 /* Microsoft import libraries have every member named the same, 1159 and not in the right order for us to link them correctly. We 1160 must detect these and rename the members so that they'll link 1161 correctly. There are three types of objects: the head, the 1162 thunks, and the sentinel(s). The head is easy; it's the one 1163 with idata2. We assume that the sentinels won't have relocs, 1164 and the thunks will. It's easier than checking the symbol 1165 table for external references. */ 1166 LANG_FOR_EACH_INPUT_STATEMENT (is) 1167 { 1168 if (is->the_bfd->my_archive) 1169 { 1170 char *pnt; 1171 bfd *arch = is->the_bfd->my_archive; 1172 1173 if (cur_arch != arch) 1174 { 1175 cur_arch = arch; 1176 is_ms_arch = 1; 1177 1178 for (is3 = is; 1179 is3 && is3->the_bfd->my_archive == arch; 1180 is3 = (lang_input_statement_type *) is3->next) 1181 { 1182 /* A MS dynamic import library can also contain static 1183 members, so look for the first element with a .dll 1184 extension, and use that for the remainder of the 1185 comparisons. */ 1186 pnt = strrchr (is3->the_bfd->filename, '.'); 1187 if (pnt != NULL && strcmp (pnt, ".dll") == 0) 1188 break; 1189 } 1190 1191 if (is3 == NULL) 1192 is_ms_arch = 0; 1193 else 1194 { 1195 /* OK, found one. Now look to see if the remaining 1196 (dynamic import) members use the same name. */ 1197 for (is2 = is; 1198 is2 && is2->the_bfd->my_archive == arch; 1199 is2 = (lang_input_statement_type *) is2->next) 1200 { 1201 /* Skip static members, ie anything with a .obj 1202 extension. */ 1203 pnt = strrchr (is2->the_bfd->filename, '.'); 1204 if (pnt != NULL && strcmp (pnt, ".obj") == 0) 1205 continue; 1206 1207 if (strcmp (is3->the_bfd->filename, 1208 is2->the_bfd->filename)) 1209 { 1210 is_ms_arch = 0; 1211 break; 1212 } 1213 } 1214 } 1215 } 1216 1217 /* This fragment might have come from an .obj file in a Microsoft 1218 import, and not an actual import record. If this is the case, 1219 then leave the filename alone. */ 1220 pnt = strrchr (is->the_bfd->filename, '.'); 1221 1222 if (is_ms_arch && (strcmp (pnt, ".dll") == 0)) 1223 { 1224 int idata2 = 0, reloc_count=0; 1225 asection *sec; 1226 char *new_name, seq; 1227 1228 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1229 { 1230 if (strcmp (sec->name, ".idata\$2") == 0) 1231 idata2 = 1; 1232 reloc_count += sec->reloc_count; 1233 } 1234 1235 if (idata2) /* .idata2 is the TOC */ 1236 seq = 'a'; 1237 else if (reloc_count > 0) /* thunks */ 1238 seq = 'b'; 1239 else /* sentinel */ 1240 seq = 'c'; 1241 1242 new_name = xmalloc (strlen (is->the_bfd->filename) + 3); 1243 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq); 1244 is->the_bfd->filename = new_name; 1245 1246 new_name = xmalloc (strlen (is->filename) + 3); 1247 sprintf (new_name, "%s.%c", is->filename, seq); 1248 is->filename = new_name; 1249 } 1250 } 1251 } 1252 } 1253 1254 { 1255 /* The following chunk of code tries to identify jump stubs in 1256 import libraries which are dead code and eliminates them 1257 from the final link. For each exported symbol <sym>, there 1258 is a object file in the import library with a .text section 1259 and several .idata$* sections. The .text section contains the 1260 symbol definition for <sym> which is a jump stub of the form 1261 jmp *__imp_<sym>. The .idata$5 contains the symbol definition 1262 for __imp_<sym> which is the address of the slot for <sym> in 1263 the import address table. When a symbol is imported explicitly 1264 using __declspec(dllimport) declaration, the compiler generates 1265 a reference to __imp_<sym> which directly resolves to the 1266 symbol in .idata$5, in which case the jump stub code is not 1267 needed. The following code tries to identify jump stub sections 1268 in import libraries which are not referred to by anyone and 1269 marks them for exclusion from the final link. */ 1270 LANG_FOR_EACH_INPUT_STATEMENT (is) 1271 { 1272 if (is->the_bfd->my_archive) 1273 { 1274 int is_imp = 0; 1275 asection *sec, *stub_sec = NULL; 1276 1277 /* See if this is an import library thunk. */ 1278 for (sec = is->the_bfd->sections; sec; sec = sec->next) 1279 { 1280 if (strncmp (sec->name, ".idata\$", 7) == 0) 1281 is_imp = 1; 1282 /* The section containing the jmp stub has code 1283 and has a reloc. */ 1284 if ((sec->flags & SEC_CODE) && sec->reloc_count) 1285 stub_sec = sec; 1286 } 1287 1288 if (is_imp && stub_sec) 1289 { 1290 long symsize; 1291 asymbol **symbols; 1292 long src_count; 1293 struct bfd_link_hash_entry * blhe; 1294 1295 symsize = bfd_get_symtab_upper_bound (is->the_bfd); 1296 symbols = xmalloc (symsize); 1297 symsize = bfd_canonicalize_symtab (is->the_bfd, symbols); 1298 1299 for (src_count = 0; src_count < symsize; src_count++) 1300 { 1301 if (symbols[src_count]->section->id == stub_sec->id) 1302 { 1303 /* This symbol belongs to the section containing 1304 the stub. */ 1305 blhe = bfd_link_hash_lookup (link_info.hash, 1306 symbols[src_count]->name, 1307 FALSE, FALSE, TRUE); 1308 /* If the symbol in the stub section has no other 1309 undefined references, exclude the stub section 1310 from the final link. */ 1311 if (blhe && (blhe->type == bfd_link_hash_defined) 1312 && (blhe->u.undef.next == NULL)) 1313 stub_sec->flags |= SEC_EXCLUDE; 1314 } 1315 } 1316 free (symbols); 1317 } 1318 } 1319 } 1320 } 1321} 1322 1323static void 1324gld_${EMULATION_NAME}_before_allocation (void) 1325{ 1326#ifdef TARGET_IS_ppcpe 1327 /* Here we rummage through the found bfds to collect toc information. */ 1328 { 1329 LANG_FOR_EACH_INPUT_STATEMENT (is) 1330 { 1331 if (!ppc_process_before_allocation (is->the_bfd, &link_info)) 1332 { 1333 /* xgettext:c-format */ 1334 einfo (_("Errors encountered processing file %s\n"), is->filename); 1335 } 1336 } 1337 } 1338 1339 /* We have seen it all. Allocate it, and carry on. */ 1340 ppc_allocate_toc_section (&link_info); 1341#endif /* TARGET_IS_ppcpe */ 1342 1343#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) 1344 /* FIXME: we should be able to set the size of the interworking stub 1345 section. 1346 1347 Here we rummage through the found bfds to collect glue 1348 information. FIXME: should this be based on a command line 1349 option? krk@cygnus.com. */ 1350 { 1351 LANG_FOR_EACH_INPUT_STATEMENT (is) 1352 { 1353 if (! bfd_arm_process_before_allocation 1354 (is->the_bfd, & link_info, support_old_code)) 1355 { 1356 /* xgettext:c-format */ 1357 einfo (_("Errors encountered processing file %s for interworking"), 1358 is->filename); 1359 } 1360 } 1361 } 1362 1363 /* We have seen it all. Allocate it, and carry on. */ 1364 bfd_arm_allocate_interworking_sections (& link_info); 1365#endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */ 1366 1367 before_allocation_default (); 1368} 1369 1370#ifdef DLL_SUPPORT 1371/* This is called when an input file isn't recognized as a BFD. We 1372 check here for .DEF files and pull them in automatically. */ 1373 1374static int 1375saw_option (char *option) 1376{ 1377 int i; 1378 1379 for (i = 0; init[i].ptr; i++) 1380 if (strcmp (init[i].symbol, option) == 0) 1381 return init[i].inited; 1382 return 0; 1383} 1384#endif /* DLL_SUPPORT */ 1385 1386static bfd_boolean 1387gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) 1388{ 1389#ifdef DLL_SUPPORT 1390 const char *ext = entry->filename + strlen (entry->filename) - 4; 1391 1392 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0) 1393 { 1394 pe_def_file = def_file_parse (entry->filename, pe_def_file); 1395 1396 if (pe_def_file) 1397 { 1398 int i, buflen=0, len; 1399 char *buf; 1400 1401 for (i = 0; i < pe_def_file->num_exports; i++) 1402 { 1403 len = strlen (pe_def_file->exports[i].internal_name); 1404 if (buflen < len + 2) 1405 buflen = len + 2; 1406 } 1407 1408 buf = (char *) xmalloc (buflen); 1409 1410 for (i = 0; i < pe_def_file->num_exports; i++) 1411 { 1412 struct bfd_link_hash_entry *h; 1413 1414 sprintf (buf, "%s%s", U (""), pe_def_file->exports[i].internal_name); 1415 1416 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE); 1417 if (h == (struct bfd_link_hash_entry *) NULL) 1418 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); 1419 if (h->type == bfd_link_hash_new) 1420 { 1421 h->type = bfd_link_hash_undefined; 1422 h->u.undef.abfd = NULL; 1423 bfd_link_add_undef (link_info.hash, h); 1424 } 1425 } 1426 free (buf); 1427 1428 /* def_file_print (stdout, pe_def_file); */ 1429 if (pe_def_file->is_dll == 1) 1430 link_info.shared = 1; 1431 1432 if (pe_def_file->base_address != (bfd_vma)(-1)) 1433 { 1434 pe.ImageBase = 1435 pe_data (output_bfd)->pe_opthdr.ImageBase = 1436 init[IMAGEBASEOFF].value = pe_def_file->base_address; 1437 init[IMAGEBASEOFF].inited = 1; 1438 if (image_base_statement) 1439 image_base_statement->exp = 1440 exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase)); 1441 } 1442 1443 if (pe_def_file->stack_reserve != -1 1444 && ! saw_option ("__size_of_stack_reserve__")) 1445 { 1446 pe.SizeOfStackReserve = pe_def_file->stack_reserve; 1447 if (pe_def_file->stack_commit != -1) 1448 pe.SizeOfStackCommit = pe_def_file->stack_commit; 1449 } 1450 if (pe_def_file->heap_reserve != -1 1451 && ! saw_option ("__size_of_heap_reserve__")) 1452 { 1453 pe.SizeOfHeapReserve = pe_def_file->heap_reserve; 1454 if (pe_def_file->heap_commit != -1) 1455 pe.SizeOfHeapCommit = pe_def_file->heap_commit; 1456 } 1457 return TRUE; 1458 } 1459 } 1460#endif 1461 return FALSE; 1462} 1463 1464static bfd_boolean 1465gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED) 1466{ 1467#ifdef DLL_SUPPORT 1468#ifdef TARGET_IS_i386pe 1469 pe_dll_id_target ("pei-i386"); 1470#endif 1471#ifdef TARGET_IS_shpe 1472 pe_dll_id_target ("pei-shl"); 1473#endif 1474#ifdef TARGET_IS_mipspe 1475 pe_dll_id_target ("pei-mips"); 1476#endif 1477#ifdef TARGET_IS_armpe 1478 pe_dll_id_target ("pei-arm-little"); 1479#endif 1480#ifdef TARGET_IS_arm_epoc_pe 1481 pe_dll_id_target ("epoc-pei-arm-little"); 1482#endif 1483#ifdef TARGET_IS_arm_wince_pe 1484 pe_dll_id_target ("pei-arm-wince-little"); 1485#endif 1486 if (pe_bfd_is_dll (entry->the_bfd)) 1487 return pe_implied_import_dll (entry->filename); 1488#endif 1489 return FALSE; 1490} 1491 1492static void 1493gld_${EMULATION_NAME}_finish (void) 1494{ 1495#if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) 1496 struct bfd_link_hash_entry * h; 1497 1498 if (thumb_entry_symbol != NULL) 1499 { 1500 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, 1501 FALSE, FALSE, TRUE); 1502 1503 if (h != (struct bfd_link_hash_entry *) NULL 1504 && (h->type == bfd_link_hash_defined 1505 || h->type == bfd_link_hash_defweak) 1506 && h->u.def.section->output_section != NULL) 1507 { 1508 static char buffer[32]; 1509 bfd_vma val; 1510 1511 /* Special procesing is required for a Thumb entry symbol. The 1512 bottom bit of its address must be set. */ 1513 val = (h->u.def.value 1514 + bfd_get_section_vma (output_bfd, 1515 h->u.def.section->output_section) 1516 + h->u.def.section->output_offset); 1517 1518 val |= 1; 1519 1520 /* Now convert this value into a string and store it in entry_symbol 1521 where the lang_finish() function will pick it up. */ 1522 buffer[0] = '0'; 1523 buffer[1] = 'x'; 1524 1525 sprintf_vma (buffer + 2, val); 1526 1527 if (entry_symbol.name != NULL && entry_from_cmdline) 1528 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"), 1529 thumb_entry_symbol, entry_symbol.name); 1530 entry_symbol.name = buffer; 1531 } 1532 else 1533 einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol); 1534 } 1535#endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */ 1536 1537 finish_default (); 1538 1539#ifdef DLL_SUPPORT 1540 if (link_info.shared 1541#if !defined(TARGET_IS_shpe) && !defined(TARGET_IS_mipspe) 1542 || (!link_info.relocatable && pe_def_file->num_exports != 0) 1543#endif 1544 ) 1545 { 1546 pe_dll_fill_sections (output_bfd, &link_info); 1547 if (pe_implib_filename) 1548 pe_dll_generate_implib (pe_def_file, pe_implib_filename); 1549 } 1550#if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe) 1551 /* ARM doesn't need relocs. */ 1552 else 1553 { 1554 pe_exe_fill_sections (output_bfd, &link_info); 1555 } 1556#endif 1557 1558 if (pe_out_def_filename) 1559 pe_dll_generate_def_file (pe_out_def_filename); 1560#endif /* DLL_SUPPORT */ 1561 1562 /* I don't know where .idata gets set as code, but it shouldn't be. */ 1563 { 1564 asection *asec = bfd_get_section_by_name (output_bfd, ".idata"); 1565 1566 if (asec) 1567 { 1568 asec->flags &= ~SEC_CODE; 1569 asec->flags |= SEC_DATA; 1570 } 1571 } 1572} 1573 1574 1575/* Place an orphan section. 1576 1577 We use this to put sections in a reasonable place in the file, and 1578 to ensure that they are aligned as required. 1579 1580 We handle grouped sections here as well. A section named .foo$nn 1581 goes into the output section .foo. All grouped sections are sorted 1582 by name. 1583 1584 Grouped sections for the default sections are handled by the 1585 default linker script using wildcards, and are sorted by 1586 sort_sections. */ 1587 1588static bfd_boolean 1589gld_${EMULATION_NAME}_place_orphan (asection *s) 1590{ 1591 const char *secname; 1592 const char *orig_secname; 1593 char *dollar = NULL; 1594 lang_output_section_statement_type *os; 1595 lang_statement_list_type add_child; 1596 lang_statement_union_type **pl; 1597 1598 secname = bfd_get_section_name (s->owner, s); 1599 1600 /* Look through the script to see where to place this section. */ 1601 orig_secname = secname; 1602 if (!link_info.relocatable 1603 && (dollar = strchr (secname, '$')) != NULL) 1604 { 1605 size_t len = dollar - orig_secname; 1606 char *newname = xmalloc (len + 1); 1607 memcpy (newname, orig_secname, len); 1608 newname[len] = '\0'; 1609 secname = newname; 1610 } 1611 1612 os = lang_output_section_find (secname); 1613 1614 lang_list_init (&add_child); 1615 1616 if (os != NULL 1617 && (os->bfd_section == NULL 1618 || os->bfd_section->flags == 0 1619 || ((s->flags ^ os->bfd_section->flags) 1620 & (SEC_LOAD | SEC_ALLOC)) == 0)) 1621 { 1622 /* We already have an output section statement with this 1623 name, and its bfd section, if any, has compatible flags. 1624 If the section already exists but does not have any flags set, 1625 then it has been created by the linker, probably as a result of 1626 a --section-start command line switch. */ 1627 lang_add_section (&add_child, s, os); 1628 } 1629 else 1630 { 1631 static struct orphan_save hold[] = 1632 { 1633 { ".text", 1634 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, 1635 0, 0, 0, 0 }, 1636 { ".rdata", 1637 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, 1638 0, 0, 0, 0 }, 1639 { ".data", 1640 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, 1641 0, 0, 0, 0 }, 1642 { ".bss", 1643 SEC_ALLOC, 1644 0, 0, 0, 0 } 1645 }; 1646 enum orphan_save_index 1647 { 1648 orphan_text = 0, 1649 orphan_rodata, 1650 orphan_data, 1651 orphan_bss 1652 }; 1653 static int orphan_init_done = 0; 1654 struct orphan_save *place; 1655 lang_output_section_statement_type *after; 1656 etree_type *address; 1657 1658 if (!orphan_init_done) 1659 { 1660 struct orphan_save *ho; 1661 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) 1662 if (ho->name != NULL) 1663 { 1664 ho->os = lang_output_section_find (ho->name); 1665 if (ho->os != NULL && ho->os->flags == 0) 1666 ho->os->flags = ho->flags; 1667 } 1668 orphan_init_done = 1; 1669 } 1670 1671 /* Try to put the new output section in a reasonable place based 1672 on the section name and section flags. */ 1673 1674 place = NULL; 1675 if ((s->flags & SEC_ALLOC) == 0) 1676 ; 1677 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) 1678 place = &hold[orphan_bss]; 1679 else if ((s->flags & SEC_READONLY) == 0) 1680 place = &hold[orphan_data]; 1681 else if ((s->flags & SEC_CODE) == 0) 1682 place = &hold[orphan_rodata]; 1683 else 1684 place = &hold[orphan_text]; 1685 1686 after = NULL; 1687 if (place != NULL) 1688 { 1689 if (place->os == NULL) 1690 place->os = lang_output_section_find (place->name); 1691 after = place->os; 1692 if (after == NULL) 1693 after = lang_output_section_find_by_flags (s, &place->os, NULL); 1694 if (after == NULL) 1695 /* *ABS* is always the first output section statement. */ 1696 after = (&lang_output_section_statement.head 1697 ->output_section_statement); 1698 } 1699 1700 /* Choose a unique name for the section. This will be needed if the 1701 same section name appears in the input file with different 1702 loadable or allocatable characteristics. */ 1703 if (bfd_get_section_by_name (output_bfd, secname) != NULL) 1704 { 1705 static int count = 1; 1706 secname = bfd_get_unique_section_name (output_bfd, secname, &count); 1707 if (secname == NULL) 1708 einfo ("%F%P: place_orphan failed: %E\n"); 1709 } 1710 1711 /* All sections in an executable must be aligned to a page boundary. */ 1712 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__")); 1713 os = lang_insert_orphan (s, secname, after, place, address, &add_child); 1714 } 1715 1716 /* If the section name has a '\$', sort it with the other '\$' 1717 sections. */ 1718 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next) 1719 { 1720 lang_input_section_type *ls; 1721 const char *lname; 1722 1723 if ((*pl)->header.type != lang_input_section_enum) 1724 continue; 1725 1726 ls = &(*pl)->input_section; 1727 1728 lname = bfd_get_section_name (ls->section->owner, ls->section); 1729 if (strchr (lname, '\$') != NULL 1730 && (dollar == NULL || strcmp (orig_secname, lname) < 0)) 1731 break; 1732 } 1733 1734 if (add_child.head != NULL) 1735 { 1736 *add_child.tail = *pl; 1737 *pl = add_child.head; 1738 } 1739 1740 return TRUE; 1741} 1742 1743static bfd_boolean 1744gld_${EMULATION_NAME}_open_dynamic_archive 1745 (const char *arch ATTRIBUTE_UNUSED, search_dirs_type *search, 1746 lang_input_statement_type *entry) 1747{ 1748 static const struct 1749 { 1750 const char * format; 1751 bfd_boolean use_prefix; 1752 } 1753 libname_fmt [] = 1754 { 1755 /* Preferred explicit import library for dll's. */ 1756 { "lib%s.dll.a", FALSE }, 1757 /* Alternate explicit import library for dll's. */ 1758 { "%s.dll.a", FALSE }, 1759 /* "libfoo.a" could be either an import lib or a static lib. 1760 For backwards compatibility, libfoo.a needs to precede 1761 libfoo.dll and foo.dll in the search. */ 1762 { "lib%s.a", FALSE }, 1763 /* The 'native' spelling of an import lib name is "foo.lib". */ 1764 { "%s.lib", FALSE }, 1765#ifdef DLL_SUPPORT 1766 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */ 1767 { "%s%s.dll", TRUE }, 1768#endif 1769 /* Try "libfoo.dll" (default preferred dll name). */ 1770 { "lib%s.dll", FALSE }, 1771 /* Finally try 'native' dll name "foo.dll". */ 1772 { "%s.dll", FALSE }, 1773 /* Note: If adding more formats to this table, make sure to check to 1774 see if their length is longer than libname_fmt[0].format, and if 1775 so, update the call to xmalloc() below. */ 1776 { NULL, FALSE } 1777 }; 1778 static unsigned int format_max_len = 0; 1779 const char * filename; 1780 char * full_string; 1781 char * base_string; 1782 unsigned int i; 1783 1784 1785 if (! entry->is_archive) 1786 return FALSE; 1787 1788 filename = entry->filename; 1789 1790 if (format_max_len == 0) 1791 /* We need to allow space in the memory that we are going to allocate 1792 for the characters in the format string. Since the format array is 1793 static we only need to calculate this information once. In theory 1794 this value could also be computed statically, but this introduces 1795 the possibility for a discrepancy and hence a possible memory 1796 corruption. The lengths we compute here will be too long because 1797 they will include any formating characters (%s) in the strings, but 1798 this will not matter. */ 1799 for (i = 0; libname_fmt[i].format; i++) 1800 if (format_max_len < strlen (libname_fmt[i].format)) 1801 format_max_len = strlen (libname_fmt[i].format); 1802 1803 full_string = xmalloc (strlen (search->name) 1804 + strlen (filename) 1805 + format_max_len 1806#ifdef DLL_SUPPORT 1807 + (pe_dll_search_prefix 1808 ? strlen (pe_dll_search_prefix) : 0) 1809#endif 1810 /* Allow for the terminating NUL and for the path 1811 separator character that is inserted between 1812 search->name and the start of the format string. */ 1813 + 2); 1814 1815 sprintf (full_string, "%s/", search->name); 1816 base_string = full_string + strlen (full_string); 1817 1818 for (i = 0; libname_fmt[i].format; i++) 1819 { 1820#ifdef DLL_SUPPORT 1821 if (libname_fmt[i].use_prefix) 1822 { 1823 if (!pe_dll_search_prefix) 1824 continue; 1825 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename); 1826 } 1827 else 1828#endif 1829 sprintf (base_string, libname_fmt[i].format, filename); 1830 1831 if (ldfile_try_open_bfd (full_string, entry)) 1832 break; 1833 } 1834 1835 if (!libname_fmt[i].format) 1836 { 1837 free (full_string); 1838 return FALSE; 1839 } 1840 1841 entry->filename = full_string; 1842 1843 return TRUE; 1844} 1845 1846static int 1847gld_${EMULATION_NAME}_find_potential_libraries 1848 (char *name, lang_input_statement_type *entry) 1849{ 1850 return ldfile_open_file_search (name, entry, "", ".lib"); 1851} 1852 1853static char * 1854gld_${EMULATION_NAME}_get_script (int *isfile) 1855EOF 1856# Scripts compiled in. 1857# sed commands to quote an ld script as a C string. 1858sc="-f stringify.sed" 1859 1860cat >>e${EMULATION_NAME}.c <<EOF 1861{ 1862 *isfile = 0; 1863 1864 if (link_info.relocatable && config.build_constructors) 1865 return 1866EOF 1867sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c 1868echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c 1869sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c 1870echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c 1871sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c 1872echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c 1873sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c 1874echo ' ; else return' >> e${EMULATION_NAME}.c 1875sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c 1876echo '; }' >> e${EMULATION_NAME}.c 1877 1878cat >>e${EMULATION_NAME}.c <<EOF 1879 1880 1881struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = 1882{ 1883 gld_${EMULATION_NAME}_before_parse, 1884 syslib_default, 1885 hll_default, 1886 gld_${EMULATION_NAME}_after_parse, 1887 gld_${EMULATION_NAME}_after_open, 1888 after_allocation_default, 1889 set_output_arch_default, 1890 ldemul_default_target, 1891 gld_${EMULATION_NAME}_before_allocation, 1892 gld_${EMULATION_NAME}_get_script, 1893 "${EMULATION_NAME}", 1894 "${OUTPUT_FORMAT}", 1895 gld_${EMULATION_NAME}_finish, 1896 NULL, /* Create output section statements. */ 1897 gld_${EMULATION_NAME}_open_dynamic_archive, 1898 gld_${EMULATION_NAME}_place_orphan, 1899 gld_${EMULATION_NAME}_set_symbols, 1900 NULL, /* parse_args */ 1901 gld${EMULATION_NAME}_add_options, 1902 gld${EMULATION_NAME}_handle_option, 1903 gld_${EMULATION_NAME}_unrecognized_file, 1904 gld_${EMULATION_NAME}_list_options, 1905 gld_${EMULATION_NAME}_recognized_file, 1906 gld_${EMULATION_NAME}_find_potential_libraries, 1907 NULL /* new_vers_pattern. */ 1908}; 1909EOF 1910