1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 if [ -z "$MACHINE" ]; then
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
8 rm -f e${EMULATION_NAME}.c
9 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
11 /* Copyright 2006, 2007, 2008, 2009, 2010, 2011
12 Free Software Foundation, Inc.
13 Written by Kai Tietz, OneVision Software GmbH&CoKg.
15 This file is part of the GNU Binutils.
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 3 of the License, or
20 (at your option) any later version.
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
30 MA 02110-1301, USA. */
33 /* For WINDOWS_XP64 and higher */
34 /* Based on pe.em, but modified for 64 bit support. */
36 #define TARGET_IS_${EMULATION_NAME}
38 #define COFF_IMAGE_WITH_PE
40 #define COFF_WITH_pex64
46 #include "libiberty.h"
47 #include "filenames.h"
58 #include "coff/internal.h"
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"
65 /* FIXME: This is a BFD internal header file, and we should not be
67 #include "../bfd/libcoff.h"
70 #define AOUTSZ PEPAOUTSZ
71 #define PEAOUTHDR PEPAOUTHDR
75 #include "safe-ctype.h"
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}
86 #ifdef TARGET_IS_i386pep
90 #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
91 #define PE_DEF_SUBSYSTEM 3
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
102 static struct internal_extra_pe_aouthdr pep;
104 static int pep_subsystem = ${SUBSYSTEM};
105 static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
106 static int support_old_code = 0;
107 static lang_assignment_statement_type *image_base_statement = 0;
108 static unsigned short pe_dll_characteristics = 0;
111 static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
112 static char * pep_out_def_filename = NULL;
113 static char * pep_implib_filename = NULL;
114 static int pep_enable_auto_image_base = 0;
115 static char * pep_dll_search_prefix = NULL;
118 extern const char *output_filename;
120 static int is_underscoring (void)
123 if (pep_leading_underscore != -1)
124 return pep_leading_underscore;
125 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
126 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
130 pep_leading_underscore = (u != 0 ? 1 : 0);
131 return pep_leading_underscore;
136 gld_${EMULATION_NAME}_before_parse (void)
139 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
140 output_filename = "${EXECUTABLE_NAME:-a.exe}";
142 config.dynamic_link = 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. */
149 /* PE format extra command line options. */
151 /* Used for setting flags in the PE header. */
154 OPTION_BASE_FILE = 300 + 1,
156 OPTION_FILE_ALIGNMENT,
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,
168 OPTION_SUPPORT_OLD_CODE,
171 OPTION_EXCLUDE_SYMBOLS,
172 OPTION_EXCLUDE_ALL_SYMBOLS,
174 OPTION_STDCALL_ALIASES,
175 OPTION_ENABLE_STDCALL_FIXUP,
176 OPTION_DISABLE_STDCALL_FIXUP,
177 OPTION_IMPLIB_FILENAME,
178 OPTION_WARN_DUPLICATE_EXPORTS,
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,
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,
198 OPTION_FORCE_INTEGRITY,
204 OPTION_TERMINAL_SERVER_AWARE
208 gld${EMULATION_NAME}_add_options
209 (int ns ATTRIBUTE_UNUSED,
210 char **shortopts ATTRIBUTE_UNUSED,
212 struct option **longopts,
213 int nrl ATTRIBUTE_UNUSED,
214 struct option **really_longopts ATTRIBUTE_UNUSED)
216 static const struct option xtra_long[] =
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},
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},
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}
283 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
284 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
287 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
288 parameters which may be input from the command line. */
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
300 bfd_boolean is_c_symbol;
303 #define GET_INIT_SYMBOL_NAME(IDX) \
304 (init[(IDX)].symbol \
305 + ((init[(IDX)].is_c_symbol == FALSE || (is_underscoring () == 1)) ? 0 : 1))
307 /* Decorates the C visible symbol by underscore, if target requires. */
309 ((is_underscoring () == 0) ? CSTR : "_" CSTR)
311 /* Get size of constant string for a possible underscore prefixed
313 #define U_SIZE(CSTR) \
314 (sizeof (CSTR) + (is_underscoring () == 0 ? 0 : 1))
316 #define D(field,symbol,def,usc) {&pep.field,sizeof(pep.field), def, symbol,0, usc}
318 static definfo init[] =
320 /* imagebase must be first */
321 #define IMAGEBASEOFF 0
322 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
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__", ${SUBSYSTEM}, FALSE),
336 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
337 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
338 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
339 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
340 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
341 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
342 { NULL, 0, 0, NULL, 0, FALSE}
347 gld_${EMULATION_NAME}_list_options (FILE *file)
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"));
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\
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"));
417 set_pep_name (char *name, bfd_vma val)
421 /* Find the name and set it. */
422 for (i = 0; init[i].ptr; i++)
424 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
428 if (strcmp (name,"__image_base__") == 0)
429 set_pep_name (U ("__ImageBase"), val);
437 set_entry_point (void)
440 const char *initial_symbol_char;
450 { 1, "NtProcessStartup" },
451 { 2, "WinMainCRTStartup" },
452 { 3, "mainCRTStartup" },
453 { 7, "__PosixProcessStartup" },
454 { 9, "WinMainCRTStartup" },
455 {14, "mainCRTStartup" },
459 /* Entry point name for arbitrary subsystem numbers. */
460 static const char default_entry[] = "mainCRTStartup";
462 if (link_info.shared || dll)
464 entry = "DllMainCRTStartup";
468 for (i = 0; v[i].entry; i++)
469 if (v[i].value == pep_subsystem)
472 /* If no match, use the default. */
473 if (v[i].entry != NULL)
476 entry = default_entry;
479 /* Now we check target's default for getting proper symbol_char. */
480 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
482 if (*initial_symbol_char != '\0')
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)
491 strcpy (alc_entry, initial_symbol_char);
492 strcat (alc_entry, entry);
496 lang_default_entry (entry);
500 set_pep_subsystem (void)
506 unsigned long temp_subsystem;
523 /* Check for the presence of a version number. */
524 sver = strchr (optarg, ':');
526 len = strlen (optarg);
530 set_pep_name ("__major_subsystem_version__",
531 strtoul (sver + 1, &end, 0));
533 set_pep_name ("__minor_subsystem_version__",
534 strtoul (end + 1, &end, 0));
536 einfo (_("%P: warning: bad version number in -subsystem option\n"));
539 /* Check for numeric subsystem. */
540 temp_subsystem = strtoul (optarg, & end, 0);
541 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
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)
548 /* Use this subsystem. */
549 pep_subsystem = (int) temp_subsystem;
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')
559 if (v[i].name == NULL)
561 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
565 pep_subsystem = v[i].value;
568 set_pep_name ("__subsystem__", pep_subsystem);
575 set_pep_value (char *name)
579 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));
582 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
589 set_pep_stack_heap (char *resname, char *comname)
591 set_pep_value (resname);
596 set_pep_value (comname);
599 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
604 gld${EMULATION_NAME}_handle_option (int optc)
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);
620 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
623 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
625 case OPTION_SUBSYSTEM:
626 set_pep_subsystem ();
628 case OPTION_MAJOR_OS_VERSION:
629 set_pep_value ("__major_os_version__");
631 case OPTION_MINOR_OS_VERSION:
632 set_pep_value ("__minor_os_version__");
634 case OPTION_MAJOR_SUBSYSTEM_VERSION:
635 set_pep_value ("__major_subsystem_version__");
637 case OPTION_MINOR_SUBSYSTEM_VERSION:
638 set_pep_value ("__minor_subsystem_version__");
640 case OPTION_MAJOR_IMAGE_VERSION:
641 set_pep_value ("__major_image_version__");
643 case OPTION_MINOR_IMAGE_VERSION:
644 set_pep_value ("__minor_image_version__");
646 case OPTION_FILE_ALIGNMENT:
647 set_pep_value ("__file_alignment__");
649 case OPTION_SECTION_ALIGNMENT:
650 set_pep_value ("__section_alignment__");
653 set_pep_name ("__dll__", 1);
655 case OPTION_IMAGE_BASE:
656 set_pep_value ("__image_base__");
658 case OPTION_SUPPORT_OLD_CODE:
659 support_old_code = 1;
661 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
662 pep_use_nul_prefixed_import_tables = TRUE;
664 case OPTION_NO_LEADING_UNDERSCORE:
665 pep_leading_underscore = 0;
667 case OPTION_LEADING_UNDERSCORE:
668 pep_leading_underscore = 1;
672 pep_out_def_filename = xstrdup (optarg);
674 case OPTION_EXPORT_ALL:
675 pep_dll_export_everything = 1;
677 case OPTION_EXCLUDE_SYMBOLS:
678 pep_dll_add_excludes (optarg, EXCLUDESYMS);
680 case OPTION_EXCLUDE_ALL_SYMBOLS:
681 pep_dll_exclude_all_symbols = 1;
683 case OPTION_EXCLUDE_LIBS:
684 pep_dll_add_excludes (optarg, EXCLUDELIBS);
686 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
687 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
689 case OPTION_KILL_ATS:
690 pep_dll_kill_ats = 1;
692 case OPTION_STDCALL_ALIASES:
693 pep_dll_stdcall_aliases = 1;
695 case OPTION_ENABLE_STDCALL_FIXUP:
696 pep_enable_stdcall_fixup = 1;
698 case OPTION_DISABLE_STDCALL_FIXUP:
699 pep_enable_stdcall_fixup = 0;
701 case OPTION_IMPLIB_FILENAME:
702 pep_implib_filename = xstrdup (optarg);
704 case OPTION_WARN_DUPLICATE_EXPORTS:
705 pep_dll_warn_dup_exports = 1;
707 case OPTION_IMP_COMPAT:
708 pep_dll_compat_implib = 1;
710 case OPTION_ENABLE_AUTO_IMAGE_BASE:
711 pep_enable_auto_image_base = 1;
713 case OPTION_DISABLE_AUTO_IMAGE_BASE:
714 pep_enable_auto_image_base = 0;
716 case OPTION_DLL_SEARCH_PREFIX:
717 pep_dll_search_prefix = xstrdup (optarg);
719 case OPTION_NO_DEFAULT_EXCLUDES:
720 pep_dll_do_default_excludes = 0;
722 case OPTION_DLL_ENABLE_AUTO_IMPORT:
723 link_info.pei386_auto_import = 1;
725 case OPTION_DLL_DISABLE_AUTO_IMPORT:
726 link_info.pei386_auto_import = 0;
728 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
729 link_info.pei386_runtime_pseudo_reloc = 2;
731 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
732 link_info.pei386_runtime_pseudo_reloc = 0;
734 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
735 link_info.pei386_runtime_pseudo_reloc = 2;
737 case OPTION_ENABLE_EXTRA_PE_DEBUG:
738 pep_dll_extra_pe_debug = 1;
741 case OPTION_ENABLE_LONG_SECTION_NAMES:
742 pep_use_coff_long_section_names = 1;
744 case OPTION_DISABLE_LONG_SECTION_NAMES:
745 pep_use_coff_long_section_names = 0;
747 /* Get DLLCharacteristics bits */
748 case OPTION_DYNAMIC_BASE:
749 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
751 case OPTION_FORCE_INTEGRITY:
752 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
754 case OPTION_NX_COMPAT:
755 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
757 case OPTION_NO_ISOLATION:
758 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
761 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
764 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
766 case OPTION_WDM_DRIVER:
767 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
769 case OPTION_TERMINAL_SERVER_AWARE:
770 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
774 /* Set DLLCharacteristics bits */
775 set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
783 strhash (const char *str)
785 const unsigned char *s;
792 s = (const unsigned char *) str;
793 while ((c = *s++) != '\0')
795 hash += c + (c << 17);
799 hash += len + (len << 17);
805 /* Use the output file to create a image base for relocatable DLLs. */
808 compute_dll_image_base (const char *ofile)
810 bfd_vma hash = (bfd_vma) strhash (ofile);
811 return 0x61300000 + ((hash << 16) & 0x0FFC0000);
815 /* Assign values to the special symbols before the linker script is
819 gld_${EMULATION_NAME}_set_symbols (void)
821 /* Run through and invent symbols for all the
822 names and insert the defaults. */
827 if (!init[IMAGEBASEOFF].inited)
829 if (link_info.relocatable)
830 init[IMAGEBASEOFF].value = 0;
831 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
834 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
835 ? compute_dll_image_base (output_filename)
836 : NT_DLL_IMAGE_BASE);
838 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
842 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
843 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
846 /* Don't do any symbol assignments if this is a relocatable link. */
847 if (link_info.relocatable)
850 /* Glue the assignments into the abs section. */
851 push_stat_ptr (&abs_output_section->children);
853 for (j = 0; init[j].ptr; j++)
855 bfd_vma val = init[j].value;
856 lang_assignment_statement_type *rv;
858 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
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;
870 if (j == IMAGEBASEOFF)
871 image_base_statement = rv;
873 /* Restore the pointer. */
876 if (pep.FileAlignment > pep.SectionAlignment)
878 einfo (_("%P: warning, file alignment > section alignment.\n"));
882 /* This is called after the linker script and the command line options
886 gld_${EMULATION_NAME}_after_parse (void)
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"));
896 after_parse_default ();
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. */
904 char * pep_data_import_dll;
907 static struct bfd_link_hash_entry *pep_undef_found_sym;
910 pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
914 const char *hs = h->root.string;
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] == '@')
923 pep_undef_found_sym = h;
930 pep_fixup_stdcalls (void)
932 static int gave_warning_message = 0;
933 struct bfd_link_hash_entry *undef, *sym;
935 if (pep_dll_extra_pe_debug)
936 printf ("%s\n", __FUNCTION__);
938 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
939 if (undef->type == bfd_link_hash_undefined)
941 char* at = strchr (undef->root.string, '@');
942 int lead_at = (*undef->root.string == '@');
944 at = strchr (undef->root.string + 1, '@');
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);
953 at = strchr (cname, '@');
956 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
958 if (sym && sym->type == bfd_link_hash_defined)
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;
964 if (pep_enable_stdcall_fixup == -1)
966 einfo (_("Warning: resolving %s by linking to %s\n"),
967 undef->root.string, cname);
968 if (! gave_warning_message)
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"));
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;
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;
991 if (pep_enable_stdcall_fixup == -1)
993 einfo (_("Warning: resolving %s by linking to %s\n"),
994 undef->root.string, sym->root.string);
995 if (! gave_warning_message)
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"));
1008 make_import_fixup (arelent *rel, asection *s)
1010 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1012 bfd_vma _addend = 0;
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);
1019 memset (addend, 0, sizeof (addend));
1020 switch ((rel->howto->bitsize))
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)));
1027 _addend = ((bfd_vma) bfd_get_8 (s->owner, addend)) & 0xff;
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)));
1034 _addend = ((bfd_vma) bfd_get_16 (s->owner, addend)) & 0xffff;
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)));
1041 _addend = ((bfd_vma) bfd_get_32 (s->owner, addend)) & 0xffffffff;
1044 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
1046 _addend = ((bfd_vma) bfd_get_64 (s->owner, addend));
1050 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
1051 s->owner, s, rel->address);
1053 if (pep_dll_extra_pe_debug)
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);
1059 pep_create_import_fixup (rel, s, _addend);
1065 pep_find_data_imports (void)
1067 struct bfd_link_hash_entry *undef, *sym;
1069 if (link_info.pei386_auto_import == 0)
1072 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1074 if (undef->type == bfd_link_hash_undefined)
1076 /* C++ symbols are *long*. */
1079 if (pep_dll_extra_pe_debug)
1080 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1082 sprintf (buf, "__imp_%s", undef->root.string);
1084 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1086 if (sym && sym->type == bfd_link_hash_defined)
1088 bfd *b = sym->u.def.section->owner;
1092 if (!bfd_generic_link_read_symbols (b))
1094 einfo (_("%B%F: could not read symbols: %E\n"), b);
1098 symbols = bfd_get_outsymbols (b);
1099 nsyms = bfd_get_symcount (b);
1101 for (i = 0; i < nsyms; i++)
1103 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
1106 if (pep_dll_extra_pe_debug)
1107 printf ("->%s\n", symbols[i]->name);
1109 pep_data_import_dll = (char*) (symbols[i]->name +
1110 U_SIZE ("_head_") - 1);
1114 pep_walk_relocs_of_symbol (&link_info, undef->root.string,
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;
1131 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1133 if (pep_dll_extra_pe_debug)
1134 printf ("+%s\n", h->string);
1138 #endif /* DLL_SUPPORT */
1141 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1143 int *found = (int *) obj;
1144 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1149 gld_${EMULATION_NAME}_after_open (void)
1151 after_open_default ();
1155 if (pep_dll_extra_pe_debug)
1158 struct bfd_link_hash_entry *sym;
1160 printf ("%s()\n", __FUNCTION__);
1162 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1163 printf ("-%s\n", sym->root.string);
1164 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1166 for (a = link_info.input_bfds; a; a = a->link_next)
1167 printf ("*%s\n",a->filename);
1171 /* Pass the wacky PE command line options into the output bfd.
1172 FIXME: This should be done via a function, rather than by
1173 including an internal BFD header. */
1175 if (coff_data (link_info.output_bfd) == NULL
1176 || coff_data (link_info.output_bfd)->pe == 0)
1177 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1178 link_info.output_bfd);
1180 pe_data (link_info.output_bfd)->pe_opthdr = pep;
1181 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1182 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1184 /* At this point we must decide whether to use long section names
1185 in the output or not. If the user hasn't explicitly specified
1186 on the command line, we leave it to the default for the format
1187 (object files yes, image files no), except if there is debug
1188 information present; GDB relies on the long section names to
1189 find it, so enable it in that case. */
1190 if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1192 /* Iterate over all sections of all input BFDs, checking
1193 for any that begin 'debug_' and are long names. */
1194 LANG_FOR_EACH_INPUT_STATEMENT (is)
1196 int found_debug = 0;
1197 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1200 pep_use_coff_long_section_names = 1;
1206 pep_output_file_set_long_section_names (link_info.output_bfd);
1209 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1210 pep_fixup_stdcalls ();
1212 pep_process_import_defs (link_info.output_bfd, &link_info);
1214 pep_find_data_imports ();
1216 /* As possibly new symbols are added by imports, we rerun
1217 stdcall/fastcall fixup here. */
1218 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1219 pep_fixup_stdcalls ();
1221 #ifndef TARGET_IS_i386pep
1222 if (link_info.shared)
1224 if (!link_info.relocatable)
1226 pep_dll_build_sections (link_info.output_bfd, &link_info);
1228 #ifndef TARGET_IS_i386pep
1230 pep_exe_build_sections (link_info.output_bfd, &link_info);
1232 #endif /* DLL_SUPPORT */
1235 /* This next chunk of code tries to detect the case where you have
1236 two import libraries for the same DLL (specifically,
1237 symbolically linking libm.a and libc.a in cygwin to
1238 libcygwin.a). In those cases, it's possible for function
1239 thunks from the second implib to be used but without the
1240 head/tail objects, causing an improper import table. We detect
1241 those cases and rename the "other" import libraries to match
1242 the one the head/tail come from, so that the linker will sort
1243 things nicely and produce a valid import table. */
1245 LANG_FOR_EACH_INPUT_STATEMENT (is)
1247 if (is->the_bfd->my_archive)
1249 int idata2 = 0, reloc_count=0, is_imp = 0;
1252 /* See if this is an import library thunk. */
1253 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1255 if (strcmp (sec->name, ".idata\$2") == 0)
1257 if (CONST_STRNEQ (sec->name, ".idata\$"))
1259 reloc_count += sec->reloc_count;
1262 if (is_imp && !idata2 && reloc_count)
1264 /* It is, look for the reference to head and see if it's
1265 from our own library. */
1266 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1274 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1278 if (!bfd_generic_link_read_symbols (is->the_bfd))
1280 einfo (_("%B%F: could not read symbols: %E\n"),
1284 symbols = bfd_get_outsymbols (is->the_bfd);
1286 relocs = xmalloc ((size_t) relsize);
1287 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1292 einfo ("%X%P: unable to process relocs: %E\n");
1296 for (i = 0; i < nrelocs; i++)
1298 struct bfd_symbol *s;
1299 struct bfd_link_hash_entry * blhe;
1300 char *other_bfd_filename;
1303 s = (relocs[i]->sym_ptr_ptr)[0];
1305 if (s->flags & BSF_LOCAL)
1308 /* Thunk section with reloc to another bfd. */
1309 blhe = bfd_link_hash_lookup (link_info.hash,
1311 FALSE, FALSE, TRUE);
1314 || blhe->type != bfd_link_hash_defined)
1318 = blhe->u.def.section->owner->my_archive
1319 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1320 : bfd_get_filename (blhe->u.def.section->owner);
1322 if (filename_cmp (bfd_get_filename
1323 (is->the_bfd->my_archive),
1324 other_bfd_filename) == 0)
1327 /* Rename this implib to match the other one. */
1328 n = xmalloc (strlen (other_bfd_filename) + 1);
1329 strcpy (n, other_bfd_filename);
1330 is->the_bfd->my_archive->filename = n;
1334 /* Note - we do not free the symbols,
1335 they are now cached in the BFD. */
1345 lang_input_statement_type *is2;
1346 lang_input_statement_type *is3;
1348 /* Careful - this is a shell script. Watch those dollar signs! */
1349 /* Microsoft import libraries have every member named the same,
1350 and not in the right order for us to link them correctly. We
1351 must detect these and rename the members so that they'll link
1352 correctly. There are three types of objects: the head, the
1353 thunks, and the sentinel(s). The head is easy; it's the one
1354 with idata2. We assume that the sentinels won't have relocs,
1355 and the thunks will. It's easier than checking the symbol
1356 table for external references. */
1357 LANG_FOR_EACH_INPUT_STATEMENT (is)
1359 if (is->the_bfd->my_archive)
1362 bfd *arch = is->the_bfd->my_archive;
1364 if (cur_arch != arch)
1370 is3 && is3->the_bfd->my_archive == arch;
1371 is3 = (lang_input_statement_type *) is3->next)
1373 /* A MS dynamic import library can also contain static
1374 members, so look for the first element with a .dll
1375 extension, and use that for the remainder of the
1377 pnt = strrchr (is3->the_bfd->filename, '.');
1378 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
1386 /* OK, found one. Now look to see if the remaining
1387 (dynamic import) members use the same name. */
1389 is2 && is2->the_bfd->my_archive == arch;
1390 is2 = (lang_input_statement_type *) is2->next)
1392 /* Skip static members, ie anything with a .obj
1394 pnt = strrchr (is2->the_bfd->filename, '.');
1395 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
1398 if (filename_cmp (is3->the_bfd->filename,
1399 is2->the_bfd->filename))
1408 /* This fragment might have come from an .obj file in a Microsoft
1409 import, and not an actual import record. If this is the case,
1410 then leave the filename alone. */
1411 pnt = strrchr (is->the_bfd->filename, '.');
1413 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
1415 int idata2 = 0, reloc_count=0;
1417 char *new_name, seq;
1419 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1421 if (strcmp (sec->name, ".idata\$2") == 0)
1423 reloc_count += sec->reloc_count;
1426 if (idata2) /* .idata2 is the TOC */
1428 else if (reloc_count > 0) /* thunks */
1433 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1434 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1435 is->the_bfd->filename = new_name;
1437 new_name = xmalloc (strlen (is->filename) + 3);
1438 sprintf (new_name, "%s.%c", is->filename, seq);
1439 is->filename = new_name;
1447 gld_${EMULATION_NAME}_before_allocation (void)
1450 before_allocation_default ();
1454 /* This is called when an input file isn't recognized as a BFD. We
1455 check here for .DEF files and pull them in automatically. */
1458 saw_option (char *option)
1464 for (i = 0; init[i].ptr; i++)
1465 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1466 return init[i].inited;
1469 #endif /* DLL_SUPPORT */
1472 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1475 const char *ext = entry->filename + strlen (entry->filename) - 4;
1477 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
1479 pep_def_file = def_file_parse (entry->filename, pep_def_file);
1483 int i, buflen=0, len;
1486 for (i = 0; i < pep_def_file->num_exports; i++)
1488 len = strlen (pep_def_file->exports[i].internal_name);
1489 if (buflen < len + 2)
1493 buf = xmalloc (buflen);
1495 for (i = 0; i < pep_def_file->num_exports; i++)
1497 struct bfd_link_hash_entry *h;
1499 sprintf (buf, "%s%s", U (""),
1500 pep_def_file->exports[i].internal_name);
1502 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1503 if (h == (struct bfd_link_hash_entry *) NULL)
1504 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1505 if (h->type == bfd_link_hash_new)
1507 h->type = bfd_link_hash_undefined;
1508 h->u.undef.abfd = NULL;
1509 bfd_link_add_undef (link_info.hash, h);
1514 /* def_file_print (stdout, pep_def_file); */
1515 if (pep_def_file->is_dll == 1)
1516 link_info.shared = 1;
1518 if (pep_def_file->base_address != (bfd_vma)(-1))
1521 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1522 = init[IMAGEBASEOFF].value
1523 = pep_def_file->base_address;
1524 init[IMAGEBASEOFF].inited = 1;
1525 if (image_base_statement)
1526 image_base_statement->exp = exp_assign ("__image_base__",
1527 exp_intop (pep.ImageBase));
1530 if (pep_def_file->stack_reserve != -1
1531 && ! saw_option ("__size_of_stack_reserve__"))
1533 pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1534 if (pep_def_file->stack_commit != -1)
1535 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1537 if (pep_def_file->heap_reserve != -1
1538 && ! saw_option ("__size_of_heap_reserve__"))
1540 pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1541 if (pep_def_file->heap_commit != -1)
1542 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1552 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1556 #ifdef TARGET_IS_i386pep
1557 pep_dll_id_target ("pei-x86-64");
1559 if (pep_bfd_is_dll (entry->the_bfd))
1560 return pep_implied_import_dll (entry->filename);
1566 gld_${EMULATION_NAME}_finish (void)
1572 if (link_info.shared
1573 || (!link_info.relocatable && pep_def_file->num_exports != 0))
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);
1580 if (pep_out_def_filename)
1581 pep_dll_generate_def_file (pep_out_def_filename);
1582 #endif /* DLL_SUPPORT */
1584 /* I don't know where .idata gets set as code, but it shouldn't be. */
1586 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1590 asec->flags &= ~SEC_CODE;
1591 asec->flags |= SEC_DATA;
1597 /* Place an orphan section.
1599 We use this to put sections in a reasonable place in the file, and
1600 to ensure that they are aligned as required.
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
1606 Grouped sections for the default sections are handled by the
1607 default linker script using wildcards, and are sorted by
1610 static lang_output_section_statement_type *
1611 gld_${EMULATION_NAME}_place_orphan (asection *s,
1612 const char *secname,
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;
1622 /* Look through the script to see where to place this section. */
1623 if (!link_info.relocatable
1624 && (dollar = strchr (secname, '\$')) != NULL)
1626 size_t len = dollar - secname;
1627 char *newname = xmalloc (len + 1);
1628 memcpy (newname, secname, len);
1629 newname[len] = '\0';
1633 lang_list_init (&add_child);
1636 if (constraint == 0)
1637 for (os = lang_output_section_find (secname);
1639 os = next_matching_output_section_statement (os, 0))
1641 /* If we don't match an existing output section, tell
1642 lang_insert_orphan to create a new output section. */
1643 constraint = SPECIAL;
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))
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, os);
1659 /* Save unused output sections in case we can match them
1660 against orphans later. */
1661 if (os->bfd_section == NULL)
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)
1669 lang_add_section (&match_by_name->children, s, match_by_name);
1670 return match_by_name;
1675 static struct orphan_save hold[] =
1678 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1681 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1684 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1687 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1693 enum orphan_save_index
1701 static int orphan_init_done = 0;
1702 struct orphan_save *place;
1703 lang_output_section_statement_type *after;
1704 etree_type *address;
1706 if (!orphan_init_done)
1708 struct orphan_save *ho;
1709 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1710 if (ho->name != NULL)
1712 ho->os = lang_output_section_find (ho->name);
1713 if (ho->os != NULL && ho->os->flags == 0)
1714 ho->os->flags = ho->flags;
1716 orphan_init_done = 1;
1719 /* Try to put the new output section in a reasonable place based
1720 on the section name and section flags. */
1723 if ((s->flags & SEC_ALLOC) == 0)
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)
1731 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
1732 : &hold[orphan_rodata]);
1735 place = &hold[orphan_text];
1740 if (place->os == NULL)
1741 place->os = lang_output_section_find (place->name);
1744 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1746 /* *ABS* is always the first output section statement. */
1747 after = (&lang_output_section_statement.head
1748 ->output_section_statement);
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,
1757 if (link_info.relocatable)
1759 os->section_alignment = s->alignment_power;
1760 os->bfd_section->alignment_power = s->alignment_power;
1764 /* If the section name has a '\$', sort it with the other '\$'
1766 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1768 lang_input_section_type *ls;
1771 if ((*pl)->header.type != lang_input_section_enum)
1774 ls = &(*pl)->input_section;
1776 lname = bfd_get_section_name (ls->section->owner, ls->section);
1777 if (strchr (lname, '\$') != NULL
1778 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1782 if (add_child.head != NULL)
1784 *add_child.tail = *pl;
1785 *pl = add_child.head;
1792 gld_${EMULATION_NAME}_open_dynamic_archive
1793 (const char *arch ATTRIBUTE_UNUSED,
1794 search_dirs_type *search,
1795 lang_input_statement_type *entry)
1799 const char * format;
1800 bfd_boolean use_prefix;
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 },
1815 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1816 { "%s%s.dll", TRUE },
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. */
1827 static unsigned int format_max_len = 0;
1828 const char * filename;
1834 if (! entry->maybe_archive)
1837 filename = entry->filename;
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);
1852 full_string = xmalloc (strlen (search->name)
1856 + (pep_dll_search_prefix
1857 ? strlen (pep_dll_search_prefix) : 0)
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. */
1864 sprintf (full_string, "%s/", search->name);
1865 base_string = full_string + strlen (full_string);
1867 for (i = 0; libname_fmt[i].format; i++)
1870 if (libname_fmt[i].use_prefix)
1872 if (!pep_dll_search_prefix)
1874 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
1878 sprintf (base_string, libname_fmt[i].format, filename);
1880 if (ldfile_try_open_bfd (full_string, entry))
1884 if (!libname_fmt[i].format)
1890 entry->filename = full_string;
1896 gld_${EMULATION_NAME}_find_potential_libraries
1897 (char *name, lang_input_statement_type *entry)
1899 return ldfile_open_file_search (name, entry, "", ".lib");
1903 gld_${EMULATION_NAME}_get_script (int *isfile)
1905 # Scripts compiled in.
1906 # sed commands to quote an ld script as a C string.
1907 sc="-f stringify.sed"
1913 if (link_info.relocatable && config.build_constructors)
1916 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1917 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1918 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1919 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1920 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1921 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1922 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1923 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
1924 echo ' ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return' >> e${EMULATION_NAME}.c
1925 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
1927 echo ' ; else return' >> e${EMULATION_NAME}.c
1928 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1929 echo '; }' >> e${EMULATION_NAME}.c
1934 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1936 gld_${EMULATION_NAME}_before_parse,
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 "${EMULATION_NAME}",
1948 gld_${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. */