1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 if [ -z "$MACHINE" ]; then
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
11 move_default_addr_high=1
14 move_default_addr_high=0;
18 rm -f e${EMULATION_NAME}.c
19 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
21 /* Copyright (C) 2006-2020 Free Software Foundation, Inc.
22 Written by Kai Tietz, OneVision Software GmbH&CoKg.
24 This file is part of the GNU Binutils.
26 This program is free software; you can redistribute it and/or modify
27 it under the terms of the GNU General Public License as published by
28 the Free Software Foundation; either version 3 of the License, or
29 (at your option) any later version.
31 This program is distributed in the hope that it will be useful,
32 but WITHOUT ANY WARRANTY; without even the implied warranty of
33 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
34 GNU General Public License for more details.
36 You should have received a copy of the GNU General Public License
37 along with this program; if not, write to the Free Software
38 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
39 MA 02110-1301, USA. */
42 /* For WINDOWS_XP64 and higher */
43 /* Based on pe.em, but modified for 64 bit support. */
45 #define TARGET_IS_${EMULATION_NAME}
47 #define COFF_IMAGE_WITH_PE
49 #define COFF_WITH_pex64
56 #include "libiberty.h"
57 #include "filenames.h"
68 #include "ldbuildid.h"
69 #include "coff/internal.h"
71 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
72 header in generic PE code. */
73 #include "coff/x86_64.h"
76 /* FIXME: These are BFD internal header files, and we should not be
78 #include "../bfd/libcoff.h"
79 #include "../bfd/libpei.h"
82 #define AOUTSZ PEPAOUTSZ
83 #define PEAOUTHDR PEPAOUTHDR
87 #include "safe-ctype.h"
89 /* Permit the emulation parameters to override the default section
90 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
91 it seem that include/coff/internal.h should not define
92 PE_DEF_SECTION_ALIGNMENT. */
93 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
94 #undef PE_DEF_SECTION_ALIGNMENT
95 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
98 #ifdef TARGET_IS_i386pep
102 #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
103 #define PE_DEF_SUBSYSTEM 3
104 #undef NT_EXE_IMAGE_BASE
105 #define NT_EXE_IMAGE_BASE \
106 ((bfd_vma) (${move_default_addr_high} ? 0x100400000LL \
108 #undef NT_DLL_IMAGE_BASE
109 #define NT_DLL_IMAGE_BASE \
110 ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
112 #undef NT_DLL_AUTO_IMAGE_BASE
113 #define NT_DLL_AUTO_IMAGE_BASE \
114 ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
116 #undef NT_DLL_AUTO_IMAGE_MASK
117 #define NT_DLL_AUTO_IMAGE_MASK \
118 ((bfd_vma) (${move_default_addr_high} ? 0x1ffff0000LL \
121 #undef NT_EXE_IMAGE_BASE
122 #define NT_EXE_IMAGE_BASE \
123 ((bfd_vma) (${move_default_addr_high} ? 0x100010000LL \
125 #undef NT_DLL_IMAGE_BASE
126 #define NT_DLL_IMAGE_BASE \
127 ((bfd_vma) (${move_default_addr_high} ? 0x110000000LL \
129 #undef NT_DLL_AUTO_IMAGE_BASE
130 #define NT_DLL_AUTO_IMAGE_BASE \
131 ((bfd_vma) (${move_default_addr_high} ? 0x120000000LL \
133 #undef NT_DLL_AUTO_IMAGE_MASK
134 #define NT_DLL_AUTO_IMAGE_MASK \
135 ((bfd_vma) (${move_default_addr_high} ? 0x0ffff0000LL \
137 #undef PE_DEF_SECTION_ALIGNMENT
138 #define PE_DEF_SUBSYSTEM 2
139 #undef PE_DEF_FILE_ALIGNMENT
140 #define PE_DEF_FILE_ALIGNMENT 0x00000200
141 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
144 static struct internal_extra_pe_aouthdr pep;
146 static int pep_subsystem = ${SUBSYSTEM};
147 static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
148 static int support_old_code = 0;
149 static lang_assignment_statement_type *image_base_statement = 0;
150 static unsigned short pe_dll_characteristics = 0;
151 static bfd_boolean insert_timestamp = TRUE;
152 static const char *emit_build_id;
155 static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
156 static char * pep_out_def_filename = NULL;
157 static int pep_enable_auto_image_base = 0;
158 static char * pep_dll_search_prefix = NULL;
161 extern const char *output_filename;
163 static int is_underscoring (void)
166 if (pep_leading_underscore != -1)
167 return pep_leading_underscore;
168 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
169 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
173 pep_leading_underscore = (u != 0 ? 1 : 0);
174 return pep_leading_underscore;
179 gld_${EMULATION_NAME}_before_parse (void)
182 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
183 output_filename = "${EXECUTABLE_NAME:-a.exe}";
185 input_flags.dynamic = TRUE;
186 config.has_shared = 1;
187 link_info.pei386_auto_import = 1;
188 link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */
192 /* PE format extra command line options. */
194 /* Used for setting flags in the PE header. */
197 OPTION_BASE_FILE = 300 + 1,
199 OPTION_FILE_ALIGNMENT,
201 OPTION_MAJOR_IMAGE_VERSION,
202 OPTION_MAJOR_OS_VERSION,
203 OPTION_MAJOR_SUBSYSTEM_VERSION,
204 OPTION_MINOR_IMAGE_VERSION,
205 OPTION_MINOR_OS_VERSION,
206 OPTION_MINOR_SUBSYSTEM_VERSION,
207 OPTION_SECTION_ALIGNMENT,
211 OPTION_SUPPORT_OLD_CODE,
214 OPTION_EXCLUDE_SYMBOLS,
215 OPTION_EXCLUDE_ALL_SYMBOLS,
217 OPTION_STDCALL_ALIASES,
218 OPTION_ENABLE_STDCALL_FIXUP,
219 OPTION_DISABLE_STDCALL_FIXUP,
220 OPTION_WARN_DUPLICATE_EXPORTS,
222 OPTION_ENABLE_AUTO_IMAGE_BASE,
223 OPTION_DISABLE_AUTO_IMAGE_BASE,
224 OPTION_DLL_SEARCH_PREFIX,
225 OPTION_NO_DEFAULT_EXCLUDES,
226 OPTION_DLL_ENABLE_AUTO_IMPORT,
227 OPTION_DLL_DISABLE_AUTO_IMPORT,
228 OPTION_ENABLE_EXTRA_PE_DEBUG,
230 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
231 OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
232 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
233 OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
234 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
235 OPTION_NO_LEADING_UNDERSCORE,
236 OPTION_LEADING_UNDERSCORE,
237 OPTION_ENABLE_LONG_SECTION_NAMES,
238 OPTION_DISABLE_LONG_SECTION_NAMES,
239 OPTION_HIGH_ENTROPY_VA,
241 OPTION_FORCE_INTEGRITY,
247 OPTION_INSERT_TIMESTAMP,
248 OPTION_NO_INSERT_TIMESTAMP,
249 OPTION_TERMINAL_SERVER_AWARE,
254 gld${EMULATION_NAME}_add_options
255 (int ns ATTRIBUTE_UNUSED,
256 char **shortopts ATTRIBUTE_UNUSED,
258 struct option **longopts,
259 int nrl ATTRIBUTE_UNUSED,
260 struct option **really_longopts ATTRIBUTE_UNUSED)
262 static const struct option xtra_long[] =
265 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
266 {"dll", no_argument, NULL, OPTION_DLL},
267 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
268 {"heap", required_argument, NULL, OPTION_HEAP},
269 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
270 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
271 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
272 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
273 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
274 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
275 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
276 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
277 {"stack", required_argument, NULL, OPTION_STACK},
278 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
279 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
280 {"use-nul-prefixed-import-tables", no_argument, NULL,
281 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
282 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
283 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
285 /* getopt allows abbreviations, so we do this to stop it
286 from treating -o as an abbreviation for this option. */
287 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
288 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
289 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
290 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
291 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
292 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
293 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
294 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
295 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
296 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
297 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
298 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
299 /* getopt() allows abbreviations, so we do this to stop it from
300 treating -c as an abbreviation for these --compat-implib. */
301 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
302 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
303 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
304 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
305 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
306 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
307 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
308 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
309 {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
310 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
311 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
312 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
314 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
315 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
316 {"high-entropy-va", no_argument, NULL, OPTION_HIGH_ENTROPY_VA},
317 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
318 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
319 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
320 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
321 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
322 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
323 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
324 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
325 {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
326 {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
327 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
328 {NULL, no_argument, NULL, 0}
332 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
333 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
336 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
337 parameters which may be input from the command line. */
346 /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
347 C visible symbols can be prefixed by underscore dependent on target's
349 bfd_boolean is_c_symbol;
352 #define GET_INIT_SYMBOL_NAME(IDX) \
353 (init[(IDX)].symbol \
354 + ((!init[(IDX)].is_c_symbol || is_underscoring () == 1) ? 0 : 1))
356 /* Decorates the C visible symbol by underscore, if target requires. */
358 ((is_underscoring () == 0) ? CSTR : "_" CSTR)
360 #define D(field,symbol,def,usc) {&pep.field, sizeof (pep.field), def, symbol, 0, usc}
362 static definfo init[] =
364 /* imagebase must be first */
365 #define IMAGEBASEOFF 0
366 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
368 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
369 #define MSIMAGEBASEOFF 2
370 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
371 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
372 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
373 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
374 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
375 D(MajorImageVersion,"__major_image_version__", 0, FALSE),
376 D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
377 D(MajorSubsystemVersion,"__major_subsystem_version__", 5, FALSE),
378 D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, FALSE),
379 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
380 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
381 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
382 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
383 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
384 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
385 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
386 { NULL, 0, 0, NULL, 0, FALSE}
391 gld_${EMULATION_NAME}_list_options (FILE *file)
393 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
394 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
395 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
396 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
397 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
398 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
399 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
400 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
401 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
402 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
403 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
404 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
405 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
406 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
407 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
408 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
409 fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default)\n"));
410 fprintf (file, _(" This makes binaries non-deterministic\n"));
412 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
413 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
414 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
415 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
416 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
417 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
418 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
419 fprintf (file, _(" Exclude objects, archive members from auto\n"));
420 fprintf (file, _(" export, place into import library instead\n"));
421 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
422 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
423 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
424 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n"));
425 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
426 create __imp_<SYMBOL> as well\n"));
427 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
428 unless user specifies one\n"));
429 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base (default)\n"));
430 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
431 an importlib, use <string><basename>.dll\n\
432 in preference to lib<basename>.dll \n"));
433 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\
434 __imp_sym for DATA references\n"));
435 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
436 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
437 adding pseudo-relocations resolved at\n\
439 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
440 auto-imported DATA\n"));
441 fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\
442 or linking to DLLs (esp. auto-import)\n"));
443 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
444 executable image files\n"));
445 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
446 in object files\n"));
447 fprintf (file, _(" --high-entropy-va Image is compatible with 64-bit address space\n\
448 layout randomization (ASLR)\n"));
449 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
450 address space layout randomization (ASLR)\n"));
451 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
452 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
453 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
454 fprintf (file, _(" --no-seh Image does not use SEH; no SE handler may\n\
455 be called in this image\n"));
456 fprintf (file, _(" --no-bind Do not bind this image\n"));
457 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
458 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
459 fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
465 set_pep_name (char *name, bfd_vma val)
469 /* Find the name and set it. */
470 for (i = 0; init[i].ptr; i++)
472 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
476 if (strcmp (name,"__image_base__") == 0)
477 set_pep_name (U ("__ImageBase"), val);
485 set_entry_point (void)
488 const char *initial_symbol_char;
498 { 1, "NtProcessStartup" },
499 { 2, "WinMainCRTStartup" },
500 { 3, "mainCRTStartup" },
501 { 7, "__PosixProcessStartup" },
502 { 9, "WinMainCRTStartup" },
503 {14, "mainCRTStartup" },
507 /* Entry point name for arbitrary subsystem numbers. */
508 static const char default_entry[] = "mainCRTStartup";
510 if (bfd_link_pic (&link_info) || dll)
512 entry = "DllMainCRTStartup";
516 for (i = 0; v[i].entry; i++)
517 if (v[i].value == pep_subsystem)
520 /* If no match, use the default. */
521 if (v[i].entry != NULL)
524 entry = default_entry;
527 /* Now we check target's default for getting proper symbol_char. */
528 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
530 if (*initial_symbol_char != '\0')
534 /* lang_default_entry expects its argument to be permanently
535 allocated, so we don't free this string. */
536 alc_entry = xmalloc (strlen (initial_symbol_char)
539 strcpy (alc_entry, initial_symbol_char);
540 strcat (alc_entry, entry);
544 lang_default_entry (entry);
548 set_pep_subsystem (void)
554 unsigned long temp_subsystem;
571 /* Check for the presence of a version number. */
572 sver = strchr (optarg, ':');
574 len = strlen (optarg);
578 set_pep_name ("__major_subsystem_version__",
579 strtoul (sver + 1, &end, 0));
581 set_pep_name ("__minor_subsystem_version__",
582 strtoul (end + 1, &end, 0));
584 einfo (_("%P: warning: bad version number in -subsystem option\n"));
587 /* Check for numeric subsystem. */
588 temp_subsystem = strtoul (optarg, & end, 0);
589 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
591 /* Search list for a numeric match to use its entry point. */
592 for (i = 0; v[i].name; i++)
593 if (v[i].value == (int) temp_subsystem)
596 /* Use this subsystem. */
597 pep_subsystem = (int) temp_subsystem;
601 /* Search for subsystem by name. */
602 for (i = 0; v[i].name; i++)
603 if (strncmp (optarg, v[i].name, len) == 0
604 && v[i].name[len] == '\0')
607 if (v[i].name == NULL)
609 einfo (_("%F%P: invalid subsystem type %s\n"), optarg);
613 pep_subsystem = v[i].value;
616 set_pep_name ("__subsystem__", pep_subsystem);
623 set_pep_value (char *name)
627 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));
630 einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg);
637 set_pep_stack_heap (char *resname, char *comname)
639 set_pep_value (resname);
644 set_pep_value (comname);
647 einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg);
650 #define DEFAULT_BUILD_ID_STYLE "md5"
653 gld${EMULATION_NAME}_handle_option (int optc)
661 case OPTION_BASE_FILE:
662 link_info.base_file = fopen (optarg, FOPEN_WB);
663 if (link_info.base_file == NULL)
664 einfo (_("%F%P: cannot open base file %s\n"), optarg);
669 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
672 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
674 case OPTION_SUBSYSTEM:
675 set_pep_subsystem ();
677 case OPTION_MAJOR_OS_VERSION:
678 set_pep_value ("__major_os_version__");
680 case OPTION_MINOR_OS_VERSION:
681 set_pep_value ("__minor_os_version__");
683 case OPTION_MAJOR_SUBSYSTEM_VERSION:
684 set_pep_value ("__major_subsystem_version__");
686 case OPTION_MINOR_SUBSYSTEM_VERSION:
687 set_pep_value ("__minor_subsystem_version__");
689 case OPTION_MAJOR_IMAGE_VERSION:
690 set_pep_value ("__major_image_version__");
692 case OPTION_MINOR_IMAGE_VERSION:
693 set_pep_value ("__minor_image_version__");
695 case OPTION_FILE_ALIGNMENT:
696 set_pep_value ("__file_alignment__");
698 case OPTION_SECTION_ALIGNMENT:
699 set_pep_value ("__section_alignment__");
702 set_pep_name ("__dll__", 1);
704 case OPTION_IMAGE_BASE:
705 set_pep_value ("__image_base__");
707 case OPTION_SUPPORT_OLD_CODE:
708 support_old_code = 1;
710 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
711 pep_use_nul_prefixed_import_tables = TRUE;
713 case OPTION_NO_LEADING_UNDERSCORE:
714 pep_leading_underscore = 0;
716 case OPTION_LEADING_UNDERSCORE:
717 pep_leading_underscore = 1;
719 case OPTION_INSERT_TIMESTAMP:
720 insert_timestamp = TRUE;
722 case OPTION_NO_INSERT_TIMESTAMP:
723 insert_timestamp = FALSE;
727 pep_out_def_filename = xstrdup (optarg);
729 case OPTION_EXPORT_ALL:
730 pep_dll_export_everything = 1;
732 case OPTION_EXCLUDE_SYMBOLS:
733 pep_dll_add_excludes (optarg, EXCLUDESYMS);
735 case OPTION_EXCLUDE_ALL_SYMBOLS:
736 pep_dll_exclude_all_symbols = 1;
738 case OPTION_EXCLUDE_LIBS:
739 pep_dll_add_excludes (optarg, EXCLUDELIBS);
741 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
742 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
744 case OPTION_KILL_ATS:
745 pep_dll_kill_ats = 1;
747 case OPTION_STDCALL_ALIASES:
748 pep_dll_stdcall_aliases = 1;
750 case OPTION_ENABLE_STDCALL_FIXUP:
751 pep_enable_stdcall_fixup = 1;
753 case OPTION_DISABLE_STDCALL_FIXUP:
754 pep_enable_stdcall_fixup = 0;
756 case OPTION_WARN_DUPLICATE_EXPORTS:
757 pep_dll_warn_dup_exports = 1;
759 case OPTION_IMP_COMPAT:
760 pep_dll_compat_implib = 1;
762 case OPTION_ENABLE_AUTO_IMAGE_BASE:
763 pep_enable_auto_image_base = 1;
765 case OPTION_DISABLE_AUTO_IMAGE_BASE:
766 pep_enable_auto_image_base = 0;
768 case OPTION_DLL_SEARCH_PREFIX:
769 pep_dll_search_prefix = xstrdup (optarg);
771 case OPTION_NO_DEFAULT_EXCLUDES:
772 pep_dll_do_default_excludes = 0;
774 case OPTION_DLL_ENABLE_AUTO_IMPORT:
775 link_info.pei386_auto_import = 1;
777 case OPTION_DLL_DISABLE_AUTO_IMPORT:
778 link_info.pei386_auto_import = 0;
780 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
781 link_info.pei386_runtime_pseudo_reloc = 2;
783 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
784 link_info.pei386_runtime_pseudo_reloc = 0;
786 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
787 link_info.pei386_runtime_pseudo_reloc = 2;
789 case OPTION_ENABLE_EXTRA_PE_DEBUG:
790 pep_dll_extra_pe_debug = 1;
793 case OPTION_ENABLE_LONG_SECTION_NAMES:
794 pep_use_coff_long_section_names = 1;
796 case OPTION_DISABLE_LONG_SECTION_NAMES:
797 pep_use_coff_long_section_names = 0;
799 /* Get DLLCharacteristics bits */
800 case OPTION_HIGH_ENTROPY_VA:
801 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA;
803 case OPTION_DYNAMIC_BASE:
804 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
806 case OPTION_FORCE_INTEGRITY:
807 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
809 case OPTION_NX_COMPAT:
810 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
812 case OPTION_NO_ISOLATION:
813 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
816 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
819 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
821 case OPTION_WDM_DRIVER:
822 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
824 case OPTION_TERMINAL_SERVER_AWARE:
825 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
827 case OPTION_BUILD_ID:
828 if (emit_build_id != NULL)
830 free ((char *) emit_build_id);
831 emit_build_id = NULL;
834 optarg = DEFAULT_BUILD_ID_STYLE;
835 if (strcmp (optarg, "none"))
836 emit_build_id = xstrdup (optarg);
840 /* Set DLLCharacteristics bits */
841 set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
849 strhash (const char *str)
851 const unsigned char *s;
858 s = (const unsigned char *) str;
859 while ((c = *s++) != '\0')
861 hash += c + (c << 17);
865 hash += len + (len << 17);
871 /* Use the output file to create a image base for relocatable DLLs. */
874 compute_dll_image_base (const char *ofile)
876 bfd_vma hash = (bfd_vma) strhash (ofile);
877 return NT_DLL_AUTO_IMAGE_BASE + ((hash << 16) & NT_DLL_AUTO_IMAGE_MASK);
881 /* Assign values to the special symbols before the linker script is
885 gld_${EMULATION_NAME}_set_symbols (void)
887 /* Run through and invent symbols for all the
888 names and insert the defaults. */
893 if (!init[IMAGEBASEOFF].inited)
895 if (bfd_link_relocatable (&link_info))
896 init[IMAGEBASEOFF].value = 0;
897 else if (init[DLLOFF].value || bfd_link_dll (&link_info))
900 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
901 ? compute_dll_image_base (output_filename)
902 : NT_DLL_IMAGE_BASE);
904 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
908 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
909 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
912 /* Don't do any symbol assignments if this is a relocatable link. */
913 if (bfd_link_relocatable (&link_info))
916 /* Glue the assignments into the abs section. */
917 push_stat_ptr (&abs_output_section->children);
919 for (j = 0; init[j].ptr; j++)
921 bfd_vma val = init[j].value;
922 lang_assignment_statement_type *rv;
924 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
925 exp_intop (val), FALSE));
926 if (init[j].size == sizeof (short))
927 *(short *) init[j].ptr = (short) val;
928 else if (init[j].size == sizeof (int))
929 *(int *) init[j].ptr = (int) val;
930 else if (init[j].size == sizeof (long))
931 *(long *) init[j].ptr = (long) val;
932 /* This might be a long long or other special type. */
933 else if (init[j].size == sizeof (bfd_vma))
934 *(bfd_vma *) init[j].ptr = val;
936 if (j == IMAGEBASEOFF)
937 image_base_statement = rv;
939 /* Restore the pointer. */
942 if (pep.FileAlignment > pep.SectionAlignment)
944 einfo (_("%P: warning, file alignment > section alignment\n"));
948 /* This is called after the linker script and the command line options
952 gld_${EMULATION_NAME}_after_parse (void)
954 /* PR ld/6744: Warn the user if they have used an ELF-only
955 option hoping it will work on PE+. */
956 if (link_info.export_dynamic)
957 einfo (_("%P: warning: --export-dynamic is not supported for PE+ "
958 "targets, did you mean --export-all-symbols?\n"));
962 after_parse_default ();
966 static struct bfd_link_hash_entry *pep_undef_found_sym;
969 pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
973 const char *hs = h->root.string;
975 sl = strlen (string);
976 if (h->type == bfd_link_hash_defined
977 && ((*hs == '@' && *string == '_'
978 && strncmp (hs + 1, string + 1, sl - 1) == 0)
979 || strncmp (hs, string, sl) == 0)
980 && h->root.string[sl] == '@')
982 pep_undef_found_sym = h;
989 pep_fixup_stdcalls (void)
991 static int gave_warning_message = 0;
992 struct bfd_link_hash_entry *undef, *sym;
994 if (pep_dll_extra_pe_debug)
995 printf ("%s\n", __FUNCTION__);
997 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
998 if (undef->type == bfd_link_hash_undefined)
1000 char* at = strchr (undef->root.string, '@');
1001 int lead_at = (*undef->root.string == '@');
1003 at = strchr (undef->root.string + 1, '@');
1006 /* The symbol is a stdcall symbol, so let's look for a
1007 cdecl symbol with the same name and resolve to that. */
1008 char *cname = xstrdup (undef->root.string);
1012 at = strchr (cname, '@');
1015 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
1017 if (sym && sym->type == bfd_link_hash_defined)
1019 undef->type = bfd_link_hash_defined;
1020 undef->u.def.value = sym->u.def.value;
1021 undef->u.def.section = sym->u.def.section;
1023 if (pep_enable_stdcall_fixup == -1)
1025 einfo (_("warning: resolving %s by linking to %s\n"),
1026 undef->root.string, cname);
1027 if (! gave_warning_message)
1029 gave_warning_message = 1;
1030 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1031 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1038 /* The symbol is a cdecl symbol, so we look for stdcall
1039 symbols - which means scanning the whole symbol table. */
1040 pep_undef_found_sym = 0;
1041 bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
1042 (char *) undef->root.string);
1043 sym = pep_undef_found_sym;
1046 undef->type = bfd_link_hash_defined;
1047 undef->u.def.value = sym->u.def.value;
1048 undef->u.def.section = sym->u.def.section;
1050 if (pep_enable_stdcall_fixup == -1)
1052 einfo (_("warning: resolving %s by linking to %s\n"),
1053 undef->root.string, sym->root.string);
1054 if (! gave_warning_message)
1056 gave_warning_message = 1;
1057 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1058 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1067 make_import_fixup (arelent *rel, asection *s, char *name, const char *symname)
1069 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1071 bfd_vma _addend = 0;
1074 if (pep_dll_extra_pe_debug)
1075 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
1076 (unsigned long) rel->address, (long) rel->addend);
1078 memset (addend, 0, sizeof (addend));
1079 switch ((rel->howto->bitsize))
1082 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
1083 if (suc && rel->howto->pc_relative)
1084 _addend = bfd_get_signed_8 (s->owner, addend);
1086 _addend = bfd_get_8 (s->owner, addend);
1089 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
1090 if (suc && rel->howto->pc_relative)
1091 _addend = bfd_get_signed_16 (s->owner, addend);
1093 _addend = bfd_get_16 (s->owner, addend);
1096 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
1097 if (suc && rel->howto->pc_relative)
1098 _addend = bfd_get_signed_32 (s->owner, addend);
1100 _addend = bfd_get_32 (s->owner, addend);
1103 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
1105 _addend = bfd_get_64 (s->owner, addend);
1109 einfo (_("%P: %C: cannot get section contents - auto-import exception\n"),
1110 s->owner, s, rel->address);
1112 if (pep_dll_extra_pe_debug)
1114 printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx",
1115 (long) _addend, (long) rel->addend, (long) rel->address);
1116 if (rel->howto->pc_relative)
1118 printf (" %d bit rel.\n", (int) rel->howto->bitsize);
1121 pep_create_import_fixup (rel, s, _addend, name, symname);
1125 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1127 printf ("+%s\n", h->string);
1131 #endif /* DLL_SUPPORT */
1134 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1136 int *found = (int *) obj;
1138 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1143 pecoff_checksum_contents (bfd *abfd,
1144 void (*process) (const void *, size_t, void *),
1147 file_ptr filepos = (file_ptr) 0;
1154 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
1157 status = bfd_bread (&b, (bfd_size_type) 1, abfd);
1163 (*process) (&b, 1, arg);
1171 write_build_id (bfd *abfd)
1173 struct pe_tdata *t = pe_data (abfd);
1175 struct bfd_link_order *link_order = NULL;
1176 unsigned char *contents;
1178 bfd_size_type build_id_size;
1179 unsigned char *build_id;
1181 /* Find the section the .buildid output section has been merged info. */
1182 for (asec = abfd->sections; asec != NULL; asec = asec->next)
1184 struct bfd_link_order *l = NULL;
1185 for (l = asec->map_head.link_order; l != NULL; l = l->next)
1187 if (l->type == bfd_indirect_link_order)
1189 if (l->u.indirect.section == t->build_id.sec)
1203 einfo (_("%P: warning: .buildid section discarded,"
1204 " --build-id ignored\n"));
1208 if (t->build_id.sec->contents == NULL)
1209 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
1210 contents = t->build_id.sec->contents;
1211 size = t->build_id.sec->size;
1213 build_id_size = compute_build_id_size (t->build_id.style);
1214 build_id = xmalloc (build_id_size);
1215 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
1217 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
1219 /* Construct a debug directory entry which points to an immediately following CodeView record. */
1220 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1221 idd.Characteristics = 0;
1222 idd.TimeDateStamp = 0;
1223 idd.MajorVersion = 0;
1224 idd.MinorVersion = 0;
1225 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
1226 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
1227 idd.AddressOfRawData = asec->vma - ib + link_order->offset
1228 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1229 idd.PointerToRawData = asec->filepos + link_order->offset
1230 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1232 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
1233 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
1235 /* Write the debug directory enttry */
1236 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
1239 if (bfd_bwrite (contents, size, abfd) != size)
1242 /* Construct the CodeView record. */
1243 CODEVIEW_INFO cvinfo;
1244 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
1247 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
1248 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
1249 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
1250 ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
1254 /* Write the codeview record. */
1255 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
1258 /* Record the location of the debug directory in the data directory. */
1259 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
1260 = asec->vma - ib + link_order->offset;
1261 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
1262 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1267 /* Make .buildid section, and set up coff_tdata->build_id. */
1269 setup_build_id (bfd *ibfd)
1274 if (!validate_build_id_style (emit_build_id))
1276 einfo (_("%P: warning: unrecognized --build-id style ignored\n"));
1280 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1281 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1282 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
1285 struct pe_tdata *t = pe_data (link_info.output_bfd);
1286 t->build_id.after_write_object_contents = &write_build_id;
1287 t->build_id.style = emit_build_id;
1288 t->build_id.sec = s;
1290 /* Section is a fixed size:
1291 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
1292 pointing at a CV_INFO_PDB70 record containing the build-id, with a
1293 null byte for PdbFileName. */
1294 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
1295 + sizeof (CV_INFO_PDB70) + 1;
1300 einfo (_("%P: warning: cannot create .buildid section,"
1301 " --build-id ignored\n"));
1306 gld_${EMULATION_NAME}_after_open (void)
1308 after_open_default ();
1312 if (pep_dll_extra_pe_debug)
1315 struct bfd_link_hash_entry *sym;
1317 printf ("%s()\n", __FUNCTION__);
1319 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1320 printf ("-%s\n", sym->root.string);
1321 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1323 for (a = link_info.input_bfds; a; a = a->link.next)
1324 printf ("*%s\n",a->filename);
1328 if (emit_build_id != NULL)
1332 /* Find a COFF input. */
1333 for (abfd = link_info.input_bfds;
1334 abfd != (bfd *) NULL; abfd = abfd->link.next)
1335 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1338 /* If there are no COFF input files do not try to
1339 add a build-id section. */
1341 || !setup_build_id (abfd))
1343 free ((char *) emit_build_id);
1344 emit_build_id = NULL;
1348 /* Pass the wacky PE command line options into the output bfd.
1349 FIXME: This should be done via a function, rather than by
1350 including an internal BFD header. */
1352 if (bfd_get_flavour (link_info.output_bfd) != bfd_target_coff_flavour
1353 || coff_data (link_info.output_bfd) == NULL
1354 || coff_data (link_info.output_bfd)->pe == 0)
1355 einfo (_("%F%P: cannot perform PE operations on non PE output file '%pB'\n"),
1356 link_info.output_bfd);
1358 pe_data (link_info.output_bfd)->pe_opthdr = pep;
1359 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1360 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1361 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
1363 /* At this point we must decide whether to use long section names
1364 in the output or not. If the user hasn't explicitly specified
1365 on the command line, we leave it to the default for the format
1366 (object files yes, image files no), except if there is debug
1367 information present; GDB relies on the long section names to
1368 find it, so enable it in that case. */
1369 if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1371 if (bfd_link_relocatable (&link_info))
1372 pep_use_coff_long_section_names = 1;
1375 /* Iterate over all sections of all input BFDs, checking
1376 for any that begin 'debug_' and are long names. */
1377 LANG_FOR_EACH_INPUT_STATEMENT (is)
1379 int found_debug = 0;
1381 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1384 pep_use_coff_long_section_names = 1;
1391 pep_output_file_set_long_section_names (link_info.output_bfd);
1394 pep_process_import_defs (link_info.output_bfd, &link_info);
1396 if (link_info.pei386_auto_import) /* -1=warn or 1=enable */
1397 pep_find_data_imports (U ("_head_"), make_import_fixup);
1399 /* The implementation of the feature is rather dumb and would cause the
1400 compilation time to go through the roof if there are many undefined
1401 symbols in the link, so it needs to be run after auto-import. */
1402 if (pep_enable_stdcall_fixup) /* -1=warn or 1=enable */
1403 pep_fixup_stdcalls ();
1405 #ifndef TARGET_IS_i386pep
1406 if (bfd_link_pic (&link_info))
1408 if (!bfd_link_relocatable (&link_info))
1410 pep_dll_build_sections (link_info.output_bfd, &link_info);
1412 #ifndef TARGET_IS_i386pep
1414 pep_exe_build_sections (link_info.output_bfd, &link_info);
1416 #endif /* DLL_SUPPORT */
1419 /* This next chunk of code tries to detect the case where you have
1420 two import libraries for the same DLL (specifically,
1421 symbolically linking libm.a and libc.a in cygwin to
1422 libcygwin.a). In those cases, it's possible for function
1423 thunks from the second implib to be used but without the
1424 head/tail objects, causing an improper import table. We detect
1425 those cases and rename the "other" import libraries to match
1426 the one the head/tail come from, so that the linker will sort
1427 things nicely and produce a valid import table. */
1429 LANG_FOR_EACH_INPUT_STATEMENT (is)
1431 if (is->the_bfd->my_archive)
1433 int idata2 = 0, reloc_count=0, is_imp = 0;
1436 /* See if this is an import library thunk. */
1437 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1439 if (strcmp (sec->name, ".idata\$2") == 0)
1441 if (CONST_STRNEQ (sec->name, ".idata\$"))
1443 reloc_count += sec->reloc_count;
1446 if (is_imp && !idata2 && reloc_count)
1448 /* It is, look for the reference to head and see if it's
1449 from our own library. */
1450 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1458 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1462 if (!bfd_generic_link_read_symbols (is->the_bfd))
1464 einfo (_("%F%P: %pB: could not read symbols: %E\n"),
1468 symbols = bfd_get_outsymbols (is->the_bfd);
1470 relocs = xmalloc ((size_t) relsize);
1471 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1476 einfo (_("%X%P: unable to process relocs: %E\n"));
1480 for (i = 0; i < nrelocs; i++)
1482 struct bfd_symbol *s;
1483 struct bfd_link_hash_entry * blhe;
1484 const char *other_bfd_filename;
1487 s = (relocs[i]->sym_ptr_ptr)[0];
1489 if (s->flags & BSF_LOCAL)
1492 /* Thunk section with reloc to another bfd. */
1493 blhe = bfd_link_hash_lookup (link_info.hash,
1495 FALSE, FALSE, TRUE);
1498 || blhe->type != bfd_link_hash_defined)
1502 = blhe->u.def.section->owner->my_archive
1503 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1504 : bfd_get_filename (blhe->u.def.section->owner);
1506 if (filename_cmp (bfd_get_filename
1507 (is->the_bfd->my_archive),
1508 other_bfd_filename) == 0)
1511 /* Rename this implib to match the other one. */
1512 n = xmalloc (strlen (other_bfd_filename) + 1);
1513 strcpy (n, other_bfd_filename);
1514 bfd_set_filename (is->the_bfd->my_archive, n);
1518 /* Note - we do not free the symbols,
1519 they are now cached in the BFD. */
1529 lang_input_statement_type *is2;
1530 lang_input_statement_type *is3;
1532 /* Careful - this is a shell script. Watch those dollar signs! */
1533 /* Microsoft import libraries have every member named the same,
1534 and not in the right order for us to link them correctly. We
1535 must detect these and rename the members so that they'll link
1536 correctly. There are three types of objects: the head, the
1537 thunks, and the sentinel(s). The head is easy; it's the one
1538 with idata2. We assume that the sentinels won't have relocs,
1539 and the thunks will. It's easier than checking the symbol
1540 table for external references. */
1541 LANG_FOR_EACH_INPUT_STATEMENT (is)
1543 if (is->the_bfd->my_archive)
1546 bfd *arch = is->the_bfd->my_archive;
1548 if (cur_arch != arch)
1554 is3 && is3->the_bfd->my_archive == arch;
1555 is3 = (lang_input_statement_type *) is3->next)
1557 /* A MS dynamic import library can also contain static
1558 members, so look for the first element with a .dll
1559 extension, and use that for the remainder of the
1561 pnt = strrchr (is3->the_bfd->filename, '.');
1562 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
1570 /* OK, found one. Now look to see if the remaining
1571 (dynamic import) members use the same name. */
1573 is2 && is2->the_bfd->my_archive == arch;
1574 is2 = (lang_input_statement_type *) is2->next)
1576 /* Skip static members, ie anything with a .obj
1578 pnt = strrchr (is2->the_bfd->filename, '.');
1579 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
1582 if (filename_cmp (is3->the_bfd->filename,
1583 is2->the_bfd->filename))
1592 /* This fragment might have come from an .obj file in a Microsoft
1593 import, and not an actual import record. If this is the case,
1594 then leave the filename alone. */
1595 pnt = strrchr (is->the_bfd->filename, '.');
1597 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
1599 int idata2 = 0, reloc_count=0;
1601 char *new_name, seq;
1603 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1605 if (strcmp (sec->name, ".idata\$2") == 0)
1607 reloc_count += sec->reloc_count;
1610 if (idata2) /* .idata2 is the TOC */
1612 else if (reloc_count > 0) /* thunks */
1617 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1618 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1619 bfd_set_filename (is->the_bfd, new_name);
1621 new_name = xmalloc (strlen (is->filename) + 3);
1622 sprintf (new_name, "%s.%c", is->filename, seq);
1623 is->filename = new_name;
1631 gld_${EMULATION_NAME}_before_allocation (void)
1634 before_allocation_default ();
1638 /* This is called when an input file isn't recognized as a BFD. We
1639 check here for .DEF files and pull them in automatically. */
1642 saw_option (char *option)
1648 for (i = 0; init[i].ptr; i++)
1649 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1650 return init[i].inited;
1653 #endif /* DLL_SUPPORT */
1656 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1659 const char *ext = entry->filename + strlen (entry->filename) - 4;
1661 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
1663 pep_def_file = def_file_parse (entry->filename, pep_def_file);
1667 int i, buflen=0, len;
1670 for (i = 0; i < pep_def_file->num_exports; i++)
1672 len = strlen (pep_def_file->exports[i].internal_name);
1673 if (buflen < len + 2)
1677 buf = xmalloc (buflen);
1679 for (i = 0; i < pep_def_file->num_exports; i++)
1681 struct bfd_link_hash_entry *h;
1683 sprintf (buf, "%s%s", U (""),
1684 pep_def_file->exports[i].internal_name);
1686 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1687 if (h == (struct bfd_link_hash_entry *) NULL)
1688 einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n"));
1689 if (h->type == bfd_link_hash_new)
1691 h->type = bfd_link_hash_undefined;
1692 h->u.undef.abfd = NULL;
1693 bfd_link_add_undef (link_info.hash, h);
1698 /* def_file_print (stdout, pep_def_file); */
1699 if (pep_def_file->is_dll == 1)
1700 link_info.type = type_dll;
1702 if (pep_def_file->base_address != (bfd_vma)(-1))
1705 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1706 = init[IMAGEBASEOFF].value
1707 = pep_def_file->base_address;
1708 init[IMAGEBASEOFF].inited = 1;
1709 if (image_base_statement)
1710 image_base_statement->exp
1711 = exp_assign ("__image_base__", exp_intop (pep.ImageBase),
1715 if (pep_def_file->stack_reserve != -1
1716 && ! saw_option ("__size_of_stack_reserve__"))
1718 pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1719 if (pep_def_file->stack_commit != -1)
1720 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1722 if (pep_def_file->heap_reserve != -1
1723 && ! saw_option ("__size_of_heap_reserve__"))
1725 pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1726 if (pep_def_file->heap_commit != -1)
1727 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1737 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1741 #ifdef TARGET_IS_i386pep
1742 pep_dll_id_target ("pei-x86-64");
1744 if (pep_bfd_is_dll (entry->the_bfd))
1745 return pep_implied_import_dll (entry->filename);
1751 gld_${EMULATION_NAME}_finish (void)
1757 if (bfd_link_pic (&link_info)
1758 || (!bfd_link_relocatable (&link_info)
1759 && pep_def_file->num_exports != 0))
1761 pep_dll_fill_sections (link_info.output_bfd, &link_info);
1762 if (command_line.out_implib_filename)
1763 pep_dll_generate_implib (pep_def_file,
1764 command_line.out_implib_filename, &link_info);
1767 if (pep_out_def_filename)
1768 pep_dll_generate_def_file (pep_out_def_filename);
1769 #endif /* DLL_SUPPORT */
1771 /* I don't know where .idata gets set as code, but it shouldn't be. */
1773 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1777 asec->flags &= ~SEC_CODE;
1778 asec->flags |= SEC_DATA;
1784 /* Place an orphan section.
1786 We use this to put sections in a reasonable place in the file, and
1787 to ensure that they are aligned as required.
1789 We handle grouped sections here as well. A section named .foo\$nn
1790 goes into the output section .foo. All grouped sections are sorted
1793 Grouped sections for the default sections are handled by the
1794 default linker script using wildcards, and are sorted by
1797 static lang_output_section_statement_type *
1798 gld_${EMULATION_NAME}_place_orphan (asection *s,
1799 const char *secname,
1802 const char *orig_secname = secname;
1803 char *dollar = NULL;
1804 lang_output_section_statement_type *os;
1805 lang_statement_list_type add_child;
1806 lang_output_section_statement_type *match_by_name = NULL;
1807 lang_statement_union_type **pl;
1809 /* Look through the script to see where to place this section. */
1810 if (!bfd_link_relocatable (&link_info)
1811 && (dollar = strchr (secname, '\$')) != NULL)
1813 size_t len = dollar - secname;
1814 char *newname = xmalloc (len + 1);
1815 memcpy (newname, secname, len);
1816 newname[len] = '\0';
1820 lang_list_init (&add_child);
1823 if (constraint == 0)
1824 for (os = lang_output_section_find (secname);
1826 os = next_matching_output_section_statement (os, 0))
1828 /* If we don't match an existing output section, tell
1829 lang_insert_orphan to create a new output section. */
1830 constraint = SPECIAL;
1832 if (os->bfd_section != NULL
1833 && (os->bfd_section->flags == 0
1834 || ((s->flags ^ os->bfd_section->flags)
1835 & (SEC_LOAD | SEC_ALLOC)) == 0))
1837 /* We already have an output section statement with this
1838 name, and its bfd section has compatible flags.
1839 If the section already exists but does not have any flags set,
1840 then it has been created by the linker, probably as a result of
1841 a --section-start command line switch. */
1842 lang_add_section (&add_child, s, NULL, os);
1846 /* Save unused output sections in case we can match them
1847 against orphans later. */
1848 if (os->bfd_section == NULL)
1852 /* If we didn't match an active output section, see if we matched an
1853 unused one and use that. */
1854 if (os == NULL && match_by_name)
1856 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
1857 return match_by_name;
1862 static struct orphan_save hold[] =
1865 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1868 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1871 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1874 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1880 enum orphan_save_index
1888 static int orphan_init_done = 0;
1889 struct orphan_save *place;
1890 lang_output_section_statement_type *after;
1891 etree_type *address;
1895 if (!orphan_init_done)
1897 struct orphan_save *ho;
1898 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1899 if (ho->name != NULL)
1901 ho->os = lang_output_section_find (ho->name);
1902 if (ho->os != NULL && ho->os->flags == 0)
1903 ho->os->flags = ho->flags;
1905 orphan_init_done = 1;
1909 if (!bfd_link_relocatable (&link_info))
1912 while ((nexts = bfd_get_next_section_by_name (nexts->owner,
1914 if (nexts->output_section == NULL
1915 && (nexts->flags & SEC_EXCLUDE) == 0
1916 && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
1917 && (nexts->owner->flags & DYNAMIC) == 0
1918 && !bfd_input_just_syms (nexts->owner))
1919 flags = (((flags ^ SEC_READONLY)
1920 | (nexts->flags ^ SEC_READONLY))
1924 /* Try to put the new output section in a reasonable place based
1925 on the section name and section flags. */
1928 if ((flags & SEC_ALLOC) == 0)
1930 else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1931 place = &hold[orphan_bss];
1932 else if ((flags & SEC_READONLY) == 0)
1933 place = &hold[orphan_data];
1934 else if ((flags & SEC_CODE) == 0)
1936 place = (!strncmp (secname, ".idata\$", 7) ? &hold[orphan_idata]
1937 : &hold[orphan_rodata]);
1940 place = &hold[orphan_text];
1945 if (place->os == NULL)
1946 place->os = lang_output_section_find (place->name);
1949 after = lang_output_section_find_by_flags (s, flags, &place->os,
1952 /* *ABS* is always the first output section statement. */
1953 after = (void *) lang_os_list.head;
1956 /* All sections in an executable must be aligned to a page boundary.
1957 In a relocatable link, just preserve the incoming alignment; the
1958 address is discarded by lang_insert_orphan in that case, anyway. */
1959 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1960 os = lang_insert_orphan (s, secname, constraint, after, place, address,
1962 if (bfd_link_relocatable (&link_info))
1964 os->section_alignment = exp_intop (1U << s->alignment_power);
1965 os->bfd_section->alignment_power = s->alignment_power;
1969 /* If the section name has a '\$', sort it with the other '\$'
1971 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1973 lang_input_section_type *ls;
1976 if ((*pl)->header.type != lang_input_section_enum)
1979 ls = &(*pl)->input_section;
1981 lname = bfd_section_name (ls->section);
1982 if (strchr (lname, '\$') != NULL
1983 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1987 if (add_child.head != NULL)
1989 *add_child.tail = *pl;
1990 *pl = add_child.head;
1997 gld_${EMULATION_NAME}_open_dynamic_archive
1998 (const char *arch ATTRIBUTE_UNUSED,
1999 search_dirs_type *search,
2000 lang_input_statement_type *entry)
2004 const char * format;
2005 bfd_boolean use_prefix;
2009 /* Preferred explicit import library for dll's. */
2010 { "lib%s.dll.a", FALSE },
2011 /* Alternate explicit import library for dll's. */
2012 { "%s.dll.a", FALSE },
2013 /* "libfoo.a" could be either an import lib or a static lib.
2014 For backwards compatibility, libfoo.a needs to precede
2015 libfoo.dll and foo.dll in the search. */
2016 { "lib%s.a", FALSE },
2017 /* The 'native' spelling of an import lib name is "foo.lib". */
2018 { "%s.lib", FALSE },
2019 /* PR 22948 - Check for an import library. */
2020 { "lib%s.lib", FALSE },
2022 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
2023 { "%s%s.dll", TRUE },
2025 /* Try "libfoo.dll" (default preferred dll name). */
2026 { "lib%s.dll", FALSE },
2027 /* Finally try 'native' dll name "foo.dll". */
2028 { "%s.dll", FALSE },
2029 /* Note: If adding more formats to this table, make sure to check to
2030 see if their length is longer than libname_fmt[0].format, and if
2031 so, update the call to xmalloc() below. */
2034 static unsigned int format_max_len = 0;
2035 const char * filename;
2041 if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
2044 filename = entry->filename;
2046 if (format_max_len == 0)
2047 /* We need to allow space in the memory that we are going to allocate
2048 for the characters in the format string. Since the format array is
2049 static we only need to calculate this information once. In theory
2050 this value could also be computed statically, but this introduces
2051 the possibility for a discrepancy and hence a possible memory
2052 corruption. The lengths we compute here will be too long because
2053 they will include any formating characters (%s) in the strings, but
2054 this will not matter. */
2055 for (i = 0; libname_fmt[i].format; i++)
2056 if (format_max_len < strlen (libname_fmt[i].format))
2057 format_max_len = strlen (libname_fmt[i].format);
2059 full_string = xmalloc (strlen (search->name)
2063 + (pep_dll_search_prefix
2064 ? strlen (pep_dll_search_prefix) : 0)
2066 /* Allow for the terminating NUL and for the path
2067 separator character that is inserted between
2068 search->name and the start of the format string. */
2071 sprintf (full_string, "%s/", search->name);
2072 base_string = full_string + strlen (full_string);
2074 for (i = 0; libname_fmt[i].format; i++)
2077 if (libname_fmt[i].use_prefix)
2079 if (!pep_dll_search_prefix)
2081 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
2085 sprintf (base_string, libname_fmt[i].format, filename);
2087 if (ldfile_try_open_bfd (full_string, entry))
2091 if (!libname_fmt[i].format)
2097 entry->filename = full_string;
2103 gld_${EMULATION_NAME}_find_potential_libraries
2104 (char *name, lang_input_statement_type *entry)
2106 return ldfile_open_file_search (name, entry, "", ".lib");
2110 gld_${EMULATION_NAME}_get_script (int *isfile)
2112 # Scripts compiled in.
2113 # sed commands to quote an ld script as a C string.
2114 sc="-f stringify.sed"
2120 if (bfd_link_relocatable (&link_info) && config.build_constructors)
2123 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2124 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
2125 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2126 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2127 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
2128 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2129 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
2130 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
2131 echo ' ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return' >> e${EMULATION_NAME}.c
2132 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
2134 echo ' ; else return' >> e${EMULATION_NAME}.c
2135 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2136 echo '; }' >> e${EMULATION_NAME}.c
2141 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2143 gld_${EMULATION_NAME}_before_parse,
2146 gld_${EMULATION_NAME}_after_parse,
2147 gld_${EMULATION_NAME}_after_open,
2148 after_check_relocs_default,
2149 after_allocation_default,
2150 set_output_arch_default,
2151 ldemul_default_target,
2152 gld_${EMULATION_NAME}_before_allocation,
2153 gld_${EMULATION_NAME}_get_script,
2154 "${EMULATION_NAME}",
2156 gld_${EMULATION_NAME}_finish,
2157 NULL, /* Create output section statements. */
2158 gld_${EMULATION_NAME}_open_dynamic_archive,
2159 gld_${EMULATION_NAME}_place_orphan,
2160 gld_${EMULATION_NAME}_set_symbols,
2161 NULL, /* parse_args */
2162 gld${EMULATION_NAME}_add_options,
2163 gld${EMULATION_NAME}_handle_option,
2164 gld_${EMULATION_NAME}_unrecognized_file,
2165 gld_${EMULATION_NAME}_list_options,
2166 gld_${EMULATION_NAME}_recognized_file,
2167 gld_${EMULATION_NAME}_find_potential_libraries,
2168 NULL, /* new_vers_pattern. */
2169 NULL, /* extra_map_file_text */
2170 ${LDEMUL_EMIT_CTF_EARLY-NULL},
2171 ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL}