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${EMULATION_NAME}.c # there, now line numbers match ;-)
21 /* Copyright (C) 2006-2018 Free Software Foundation, Inc.
22 Written by Kai Tietz, OneVision Software GmbH&CoKg.
24 This file is part of the GNU Binutils.
26 This program is free software; you can redistribute it and/or modify
27 it under the terms of the GNU General Public License as published by
28 the Free Software Foundation; either version 3 of the License, or
29 (at your option) any later version.
31 This program is distributed in the hope that it will be useful,
32 but WITHOUT ANY WARRANTY; without even the implied warranty of
33 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
34 GNU General Public License for more details.
36 You should have received a copy of the GNU General Public License
37 along with this program; if not, write to the Free Software
38 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
39 MA 02110-1301, USA. */
42 /* For WINDOWS_XP64 and higher */
43 /* Based on pe.em, but modified for 64 bit support. */
45 #define TARGET_IS_${EMULATION_NAME}
47 #define COFF_IMAGE_WITH_PE
49 #define COFF_WITH_pex64
55 #include "libiberty.h"
56 #include "filenames.h"
67 #include "ldbuildid.h"
68 #include "coff/internal.h"
70 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
71 header in generic PE code. */
72 #include "coff/x86_64.h"
75 /* FIXME: These are BFD internal header files, and we should not be
77 #include "../bfd/libcoff.h"
78 #include "../bfd/libpei.h"
81 #define AOUTSZ PEPAOUTSZ
82 #define PEAOUTHDR PEPAOUTHDR
86 #include "safe-ctype.h"
88 /* Permit the emulation parameters to override the default section
89 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
90 it seem that include/coff/internal.h should not define
91 PE_DEF_SECTION_ALIGNMENT. */
92 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
93 #undef PE_DEF_SECTION_ALIGNMENT
94 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
97 #ifdef TARGET_IS_i386pep
101 #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
102 #define PE_DEF_SUBSYSTEM 3
103 #undef NT_EXE_IMAGE_BASE
104 #define NT_EXE_IMAGE_BASE \
105 ((bfd_vma) (${move_default_addr_high} ? 0x100400000LL \
107 #undef NT_DLL_IMAGE_BASE
108 #define NT_DLL_IMAGE_BASE \
109 ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
111 #undef NT_DLL_AUTO_IMAGE_BASE
112 #define NT_DLL_AUTO_IMAGE_BASE \
113 ((bfd_vma) (${move_default_addr_high} ? 0x400000000LL \
115 #undef NT_DLL_AUTO_IMAGE_MASK
116 #define NT_DLL_AUTO_IMAGE_MASK \
117 ((bfd_vma) (${move_default_addr_high} ? 0x1ffff0000LL \
120 #undef NT_EXE_IMAGE_BASE
121 #define NT_EXE_IMAGE_BASE \
122 ((bfd_vma) (${move_default_addr_high} ? 0x100010000LL \
124 #undef NT_DLL_IMAGE_BASE
125 #define NT_DLL_IMAGE_BASE \
126 ((bfd_vma) (${move_default_addr_high} ? 0x110000000LL \
128 #undef NT_DLL_AUTO_IMAGE_BASE
129 #define NT_DLL_AUTO_IMAGE_BASE \
130 ((bfd_vma) (${move_default_addr_high} ? 0x120000000LL \
132 #undef NT_DLL_AUTO_IMAGE_MASK
133 #define NT_DLL_AUTO_IMAGE_MASK \
134 ((bfd_vma) (${move_default_addr_high} ? 0x0ffff0000LL \
136 #undef PE_DEF_SECTION_ALIGNMENT
137 #define PE_DEF_SUBSYSTEM 2
138 #undef PE_DEF_FILE_ALIGNMENT
139 #define PE_DEF_FILE_ALIGNMENT 0x00000200
140 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
143 static struct internal_extra_pe_aouthdr pep;
145 static int pep_subsystem = ${SUBSYSTEM};
146 static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
147 static int support_old_code = 0;
148 static lang_assignment_statement_type *image_base_statement = 0;
149 static unsigned short pe_dll_characteristics = 0;
150 static bfd_boolean insert_timestamp = TRUE;
151 static const char *emit_build_id;
154 static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
155 static char * pep_out_def_filename = NULL;
156 static int pep_enable_auto_image_base = 0;
157 static char * pep_dll_search_prefix = NULL;
160 extern const char *output_filename;
162 static int is_underscoring (void)
165 if (pep_leading_underscore != -1)
166 return pep_leading_underscore;
167 if (!bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
168 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
172 pep_leading_underscore = (u != 0 ? 1 : 0);
173 return pep_leading_underscore;
178 gld_${EMULATION_NAME}_before_parse (void)
181 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
182 output_filename = "${EXECUTABLE_NAME:-a.exe}";
184 input_flags.dynamic = TRUE;
185 config.has_shared = 1;
186 link_info.pei386_auto_import = 1;
187 link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */
191 /* PE format extra command line options. */
193 /* Used for setting flags in the PE header. */
196 OPTION_BASE_FILE = 300 + 1,
198 OPTION_FILE_ALIGNMENT,
200 OPTION_MAJOR_IMAGE_VERSION,
201 OPTION_MAJOR_OS_VERSION,
202 OPTION_MAJOR_SUBSYSTEM_VERSION,
203 OPTION_MINOR_IMAGE_VERSION,
204 OPTION_MINOR_OS_VERSION,
205 OPTION_MINOR_SUBSYSTEM_VERSION,
206 OPTION_SECTION_ALIGNMENT,
210 OPTION_SUPPORT_OLD_CODE,
213 OPTION_EXCLUDE_SYMBOLS,
214 OPTION_EXCLUDE_ALL_SYMBOLS,
216 OPTION_STDCALL_ALIASES,
217 OPTION_ENABLE_STDCALL_FIXUP,
218 OPTION_DISABLE_STDCALL_FIXUP,
219 OPTION_WARN_DUPLICATE_EXPORTS,
221 OPTION_ENABLE_AUTO_IMAGE_BASE,
222 OPTION_DISABLE_AUTO_IMAGE_BASE,
223 OPTION_DLL_SEARCH_PREFIX,
224 OPTION_NO_DEFAULT_EXCLUDES,
225 OPTION_DLL_ENABLE_AUTO_IMPORT,
226 OPTION_DLL_DISABLE_AUTO_IMPORT,
227 OPTION_ENABLE_EXTRA_PE_DEBUG,
229 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
230 OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
231 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
232 OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
233 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
234 OPTION_NO_LEADING_UNDERSCORE,
235 OPTION_LEADING_UNDERSCORE,
236 OPTION_ENABLE_LONG_SECTION_NAMES,
237 OPTION_DISABLE_LONG_SECTION_NAMES,
238 OPTION_HIGH_ENTROPY_VA,
240 OPTION_FORCE_INTEGRITY,
246 OPTION_INSERT_TIMESTAMP,
247 OPTION_NO_INSERT_TIMESTAMP,
248 OPTION_TERMINAL_SERVER_AWARE,
253 gld${EMULATION_NAME}_add_options
254 (int ns ATTRIBUTE_UNUSED,
255 char **shortopts ATTRIBUTE_UNUSED,
257 struct option **longopts,
258 int nrl ATTRIBUTE_UNUSED,
259 struct option **really_longopts ATTRIBUTE_UNUSED)
261 static const struct option xtra_long[] =
264 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
265 {"dll", no_argument, NULL, OPTION_DLL},
266 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
267 {"heap", required_argument, NULL, OPTION_HEAP},
268 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
269 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
270 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
271 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
272 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
273 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
274 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
275 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
276 {"stack", required_argument, NULL, OPTION_STACK},
277 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
278 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
279 {"use-nul-prefixed-import-tables", no_argument, NULL,
280 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
281 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
282 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
284 /* getopt allows abbreviations, so we do this to stop it
285 from treating -o as an abbreviation for this option. */
286 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
287 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
288 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
289 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
290 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
291 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
292 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
293 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
294 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
295 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
296 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
297 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
298 /* getopt() allows abbreviations, so we do this to stop it from
299 treating -c as an abbreviation for these --compat-implib. */
300 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
301 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
302 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
303 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
304 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
305 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
306 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
307 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
308 {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
309 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
310 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
311 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
313 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
314 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
315 {"high-entropy-va", no_argument, NULL, OPTION_HIGH_ENTROPY_VA},
316 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
317 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
318 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
319 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
320 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
321 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
322 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
323 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
324 {"insert-timestamp", no_argument, NULL, OPTION_INSERT_TIMESTAMP},
325 {"no-insert-timestamp", no_argument, NULL, OPTION_NO_INSERT_TIMESTAMP},
326 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
327 {NULL, no_argument, NULL, 0}
331 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
332 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
335 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
336 parameters which may be input from the command line. */
345 /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
346 C visible symbols can be prefixed by underscore dependent on target's
348 bfd_boolean is_c_symbol;
351 #define GET_INIT_SYMBOL_NAME(IDX) \
352 (init[(IDX)].symbol \
353 + ((!init[(IDX)].is_c_symbol || is_underscoring () == 1) ? 0 : 1))
355 /* Decorates the C visible symbol by underscore, if target requires. */
357 ((is_underscoring () == 0) ? CSTR : "_" CSTR)
359 #define D(field,symbol,def,usc) {&pep.field, sizeof (pep.field), def, symbol, 0, usc}
361 static definfo init[] =
363 /* imagebase must be first */
364 #define IMAGEBASEOFF 0
365 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
367 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
368 #define MSIMAGEBASEOFF 2
369 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
370 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
371 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
372 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
373 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
374 D(MajorImageVersion,"__major_image_version__", 0, FALSE),
375 D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
376 D(MajorSubsystemVersion,"__major_subsystem_version__", 5, FALSE),
377 D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, FALSE),
378 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
379 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
380 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
381 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
382 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
383 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
384 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
385 { NULL, 0, 0, NULL, 0, FALSE}
390 gld_${EMULATION_NAME}_list_options (FILE *file)
392 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
393 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
394 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
395 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
396 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
397 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
398 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
399 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
400 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
401 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
402 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
403 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
404 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
405 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
406 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
407 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
408 fprintf (file, _(" --[no-]insert-timestamp Use a real timestamp rather than zero (default)\n"));
409 fprintf (file, _(" This makes binaries non-deterministic\n"));
411 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
412 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
413 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
414 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
415 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
416 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
417 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
418 fprintf (file, _(" Exclude objects, archive members from auto\n"));
419 fprintf (file, _(" export, place into import library instead\n"));
420 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
421 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
422 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
423 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports\n"));
424 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
425 create __imp_<SYMBOL> as well\n"));
426 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
427 unless user specifies one\n"));
428 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base (default)\n"));
429 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
430 an importlib, use <string><basename>.dll\n\
431 in preference to lib<basename>.dll \n"));
432 fprintf (file, _(" --enable-auto-import Do sophisticated linking of _sym to\n\
433 __imp_sym for DATA references\n"));
434 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
435 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
436 adding pseudo-relocations resolved at\n\
438 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
439 auto-imported DATA\n"));
440 fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\
441 or linking to DLLs (esp. auto-import)\n"));
442 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
443 executable image files\n"));
444 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
445 in object files\n"));
446 fprintf (file, _(" --high-entropy-va Image is compatible with 64-bit address space\n\
447 layout randomization (ASLR)\n"));
448 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
449 address space layout randomization (ASLR)\n"));
450 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
451 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
452 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
453 fprintf (file, _(" --no-seh Image does not use SEH; no SE handler may\n\
454 be called in this image\n"));
455 fprintf (file, _(" --no-bind Do not bind this image\n"));
456 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
457 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
458 fprintf (file, _(" --build-id[=STYLE] Generate build ID\n"));
464 set_pep_name (char *name, bfd_vma val)
468 /* Find the name and set it. */
469 for (i = 0; init[i].ptr; i++)
471 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
475 if (strcmp (name,"__image_base__") == 0)
476 set_pep_name (U ("__ImageBase"), val);
484 set_entry_point (void)
487 const char *initial_symbol_char;
497 { 1, "NtProcessStartup" },
498 { 2, "WinMainCRTStartup" },
499 { 3, "mainCRTStartup" },
500 { 7, "__PosixProcessStartup" },
501 { 9, "WinMainCRTStartup" },
502 {14, "mainCRTStartup" },
506 /* Entry point name for arbitrary subsystem numbers. */
507 static const char default_entry[] = "mainCRTStartup";
509 if (bfd_link_pic (&link_info) || dll)
511 entry = "DllMainCRTStartup";
515 for (i = 0; v[i].entry; i++)
516 if (v[i].value == pep_subsystem)
519 /* If no match, use the default. */
520 if (v[i].entry != NULL)
523 entry = default_entry;
526 /* Now we check target's default for getting proper symbol_char. */
527 initial_symbol_char = (is_underscoring () != 0 ? "_" : "");
529 if (*initial_symbol_char != '\0')
533 /* lang_default_entry expects its argument to be permanently
534 allocated, so we don't free this string. */
535 alc_entry = xmalloc (strlen (initial_symbol_char)
538 strcpy (alc_entry, initial_symbol_char);
539 strcat (alc_entry, entry);
543 lang_default_entry (entry);
547 set_pep_subsystem (void)
553 unsigned long temp_subsystem;
570 /* Check for the presence of a version number. */
571 sver = strchr (optarg, ':');
573 len = strlen (optarg);
577 set_pep_name ("__major_subsystem_version__",
578 strtoul (sver + 1, &end, 0));
580 set_pep_name ("__minor_subsystem_version__",
581 strtoul (end + 1, &end, 0));
583 einfo (_("%P: warning: bad version number in -subsystem option\n"));
586 /* Check for numeric subsystem. */
587 temp_subsystem = strtoul (optarg, & end, 0);
588 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
590 /* Search list for a numeric match to use its entry point. */
591 for (i = 0; v[i].name; i++)
592 if (v[i].value == (int) temp_subsystem)
595 /* Use this subsystem. */
596 pep_subsystem = (int) temp_subsystem;
600 /* Search for subsystem by name. */
601 for (i = 0; v[i].name; i++)
602 if (strncmp (optarg, v[i].name, len) == 0
603 && v[i].name[len] == '\0')
606 if (v[i].name == NULL)
608 einfo (_("%F%P: invalid subsystem type %s\n"), optarg);
612 pep_subsystem = v[i].value;
615 set_pep_name ("__subsystem__", pep_subsystem);
622 set_pep_value (char *name)
626 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));
629 einfo (_("%F%P: invalid hex number for PE parameter '%s'\n"), optarg);
636 set_pep_stack_heap (char *resname, char *comname)
638 set_pep_value (resname);
643 set_pep_value (comname);
646 einfo (_("%F%P: strange hex info for PE parameter '%s'\n"), optarg);
649 #define DEFAULT_BUILD_ID_STYLE "md5"
652 gld${EMULATION_NAME}_handle_option (int optc)
660 case OPTION_BASE_FILE:
661 link_info.base_file = fopen (optarg, FOPEN_WB);
662 if (link_info.base_file == NULL)
663 einfo (_("%F%P: cannot open base file %s\n"), optarg);
668 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
671 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
673 case OPTION_SUBSYSTEM:
674 set_pep_subsystem ();
676 case OPTION_MAJOR_OS_VERSION:
677 set_pep_value ("__major_os_version__");
679 case OPTION_MINOR_OS_VERSION:
680 set_pep_value ("__minor_os_version__");
682 case OPTION_MAJOR_SUBSYSTEM_VERSION:
683 set_pep_value ("__major_subsystem_version__");
685 case OPTION_MINOR_SUBSYSTEM_VERSION:
686 set_pep_value ("__minor_subsystem_version__");
688 case OPTION_MAJOR_IMAGE_VERSION:
689 set_pep_value ("__major_image_version__");
691 case OPTION_MINOR_IMAGE_VERSION:
692 set_pep_value ("__minor_image_version__");
694 case OPTION_FILE_ALIGNMENT:
695 set_pep_value ("__file_alignment__");
697 case OPTION_SECTION_ALIGNMENT:
698 set_pep_value ("__section_alignment__");
701 set_pep_name ("__dll__", 1);
703 case OPTION_IMAGE_BASE:
704 set_pep_value ("__image_base__");
706 case OPTION_SUPPORT_OLD_CODE:
707 support_old_code = 1;
709 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
710 pep_use_nul_prefixed_import_tables = TRUE;
712 case OPTION_NO_LEADING_UNDERSCORE:
713 pep_leading_underscore = 0;
715 case OPTION_LEADING_UNDERSCORE:
716 pep_leading_underscore = 1;
718 case OPTION_INSERT_TIMESTAMP:
719 insert_timestamp = TRUE;
721 case OPTION_NO_INSERT_TIMESTAMP:
722 insert_timestamp = FALSE;
726 pep_out_def_filename = xstrdup (optarg);
728 case OPTION_EXPORT_ALL:
729 pep_dll_export_everything = 1;
731 case OPTION_EXCLUDE_SYMBOLS:
732 pep_dll_add_excludes (optarg, EXCLUDESYMS);
734 case OPTION_EXCLUDE_ALL_SYMBOLS:
735 pep_dll_exclude_all_symbols = 1;
737 case OPTION_EXCLUDE_LIBS:
738 pep_dll_add_excludes (optarg, EXCLUDELIBS);
740 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
741 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
743 case OPTION_KILL_ATS:
744 pep_dll_kill_ats = 1;
746 case OPTION_STDCALL_ALIASES:
747 pep_dll_stdcall_aliases = 1;
749 case OPTION_ENABLE_STDCALL_FIXUP:
750 pep_enable_stdcall_fixup = 1;
752 case OPTION_DISABLE_STDCALL_FIXUP:
753 pep_enable_stdcall_fixup = 0;
755 case OPTION_WARN_DUPLICATE_EXPORTS:
756 pep_dll_warn_dup_exports = 1;
758 case OPTION_IMP_COMPAT:
759 pep_dll_compat_implib = 1;
761 case OPTION_ENABLE_AUTO_IMAGE_BASE:
762 pep_enable_auto_image_base = 1;
764 case OPTION_DISABLE_AUTO_IMAGE_BASE:
765 pep_enable_auto_image_base = 0;
767 case OPTION_DLL_SEARCH_PREFIX:
768 pep_dll_search_prefix = xstrdup (optarg);
770 case OPTION_NO_DEFAULT_EXCLUDES:
771 pep_dll_do_default_excludes = 0;
773 case OPTION_DLL_ENABLE_AUTO_IMPORT:
774 link_info.pei386_auto_import = 1;
776 case OPTION_DLL_DISABLE_AUTO_IMPORT:
777 link_info.pei386_auto_import = 0;
779 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
780 link_info.pei386_runtime_pseudo_reloc = 2;
782 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
783 link_info.pei386_runtime_pseudo_reloc = 0;
785 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
786 link_info.pei386_runtime_pseudo_reloc = 2;
788 case OPTION_ENABLE_EXTRA_PE_DEBUG:
789 pep_dll_extra_pe_debug = 1;
792 case OPTION_ENABLE_LONG_SECTION_NAMES:
793 pep_use_coff_long_section_names = 1;
795 case OPTION_DISABLE_LONG_SECTION_NAMES:
796 pep_use_coff_long_section_names = 0;
798 /* Get DLLCharacteristics bits */
799 case OPTION_HIGH_ENTROPY_VA:
800 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA;
802 case OPTION_DYNAMIC_BASE:
803 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
805 case OPTION_FORCE_INTEGRITY:
806 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
808 case OPTION_NX_COMPAT:
809 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
811 case OPTION_NO_ISOLATION:
812 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
815 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
818 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
820 case OPTION_WDM_DRIVER:
821 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
823 case OPTION_TERMINAL_SERVER_AWARE:
824 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
826 case OPTION_BUILD_ID:
827 if (emit_build_id != NULL)
829 free ((char *) emit_build_id);
830 emit_build_id = NULL;
833 optarg = DEFAULT_BUILD_ID_STYLE;
834 if (strcmp (optarg, "none"))
835 emit_build_id = xstrdup (optarg);
839 /* Set DLLCharacteristics bits */
840 set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
848 strhash (const char *str)
850 const unsigned char *s;
857 s = (const unsigned char *) str;
858 while ((c = *s++) != '\0')
860 hash += c + (c << 17);
864 hash += len + (len << 17);
870 /* Use the output file to create a image base for relocatable DLLs. */
873 compute_dll_image_base (const char *ofile)
875 bfd_vma hash = (bfd_vma) strhash (ofile);
876 return NT_DLL_AUTO_IMAGE_BASE + ((hash << 16) & NT_DLL_AUTO_IMAGE_MASK);
880 /* Assign values to the special symbols before the linker script is
884 gld_${EMULATION_NAME}_set_symbols (void)
886 /* Run through and invent symbols for all the
887 names and insert the defaults. */
892 if (!init[IMAGEBASEOFF].inited)
894 if (bfd_link_relocatable (&link_info))
895 init[IMAGEBASEOFF].value = 0;
896 else if (init[DLLOFF].value || bfd_link_dll (&link_info))
899 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
900 ? compute_dll_image_base (output_filename)
901 : NT_DLL_IMAGE_BASE);
903 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
907 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
908 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
911 /* Don't do any symbol assignments if this is a relocatable link. */
912 if (bfd_link_relocatable (&link_info))
915 /* Glue the assignments into the abs section. */
916 push_stat_ptr (&abs_output_section->children);
918 for (j = 0; init[j].ptr; j++)
920 bfd_vma val = init[j].value;
921 lang_assignment_statement_type *rv;
923 rv = lang_add_assignment (exp_assign (GET_INIT_SYMBOL_NAME (j),
924 exp_intop (val), FALSE));
925 if (init[j].size == sizeof (short))
926 *(short *) init[j].ptr = (short) val;
927 else if (init[j].size == sizeof (int))
928 *(int *) init[j].ptr = (int) val;
929 else if (init[j].size == sizeof (long))
930 *(long *) init[j].ptr = (long) val;
931 /* This might be a long long or other special type. */
932 else if (init[j].size == sizeof (bfd_vma))
933 *(bfd_vma *) init[j].ptr = val;
935 if (j == IMAGEBASEOFF)
936 image_base_statement = rv;
938 /* Restore the pointer. */
941 if (pep.FileAlignment > pep.SectionAlignment)
943 einfo (_("%P: warning, file alignment > section alignment\n"));
947 /* This is called after the linker script and the command line options
951 gld_${EMULATION_NAME}_after_parse (void)
953 /* PR ld/6744: Warn the user if they have used an ELF-only
954 option hoping it will work on PE+. */
955 if (link_info.export_dynamic)
956 einfo (_("%P: warning: --export-dynamic is not supported for PE+ "
957 "targets, did you mean --export-all-symbols?\n"));
961 after_parse_default ();
965 static struct bfd_link_hash_entry *pep_undef_found_sym;
968 pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
972 const char *hs = h->root.string;
974 sl = strlen (string);
975 if (h->type == bfd_link_hash_defined
976 && ((*hs == '@' && *string == '_'
977 && strncmp (hs + 1, string + 1, sl - 1) == 0)
978 || strncmp (hs, string, sl) == 0)
979 && h->root.string[sl] == '@')
981 pep_undef_found_sym = h;
988 pep_fixup_stdcalls (void)
990 static int gave_warning_message = 0;
991 struct bfd_link_hash_entry *undef, *sym;
993 if (pep_dll_extra_pe_debug)
994 printf ("%s\n", __FUNCTION__);
996 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
997 if (undef->type == bfd_link_hash_undefined)
999 char* at = strchr (undef->root.string, '@');
1000 int lead_at = (*undef->root.string == '@');
1002 at = strchr (undef->root.string + 1, '@');
1005 /* The symbol is a stdcall symbol, so let's look for a
1006 cdecl symbol with the same name and resolve to that. */
1007 char *cname = xstrdup (undef->root.string);
1011 at = strchr (cname, '@');
1014 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
1016 if (sym && sym->type == bfd_link_hash_defined)
1018 undef->type = bfd_link_hash_defined;
1019 undef->u.def.value = sym->u.def.value;
1020 undef->u.def.section = sym->u.def.section;
1022 if (pep_enable_stdcall_fixup == -1)
1024 einfo (_("warning: resolving %s by linking to %s\n"),
1025 undef->root.string, cname);
1026 if (! gave_warning_message)
1028 gave_warning_message = 1;
1029 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1030 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1037 /* The symbol is a cdecl symbol, so we look for stdcall
1038 symbols - which means scanning the whole symbol table. */
1039 pep_undef_found_sym = 0;
1040 bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
1041 (char *) undef->root.string);
1042 sym = pep_undef_found_sym;
1045 undef->type = bfd_link_hash_defined;
1046 undef->u.def.value = sym->u.def.value;
1047 undef->u.def.section = sym->u.def.section;
1049 if (pep_enable_stdcall_fixup == -1)
1051 einfo (_("warning: resolving %s by linking to %s\n"),
1052 undef->root.string, sym->root.string);
1053 if (! gave_warning_message)
1055 gave_warning_message = 1;
1056 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1057 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1066 make_import_fixup (arelent *rel, asection *s, char *name, const char *symname)
1068 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1070 bfd_vma _addend = 0;
1073 if (pep_dll_extra_pe_debug)
1074 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
1075 (unsigned long) rel->address, (long) rel->addend);
1077 memset (addend, 0, sizeof (addend));
1078 switch ((rel->howto->bitsize))
1081 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
1082 if (suc && rel->howto->pc_relative)
1083 _addend = bfd_get_signed_8 (s->owner, addend);
1085 _addend = bfd_get_8 (s->owner, addend);
1088 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
1089 if (suc && rel->howto->pc_relative)
1090 _addend = bfd_get_signed_16 (s->owner, addend);
1092 _addend = bfd_get_16 (s->owner, addend);
1095 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
1096 if (suc && rel->howto->pc_relative)
1097 _addend = bfd_get_signed_32 (s->owner, addend);
1099 _addend = bfd_get_32 (s->owner, addend);
1102 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
1104 _addend = bfd_get_64 (s->owner, addend);
1108 einfo (_("%P: %C: cannot get section contents - auto-import exception\n"),
1109 s->owner, s, rel->address);
1111 if (pep_dll_extra_pe_debug)
1113 printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx",
1114 (long) _addend, (long) rel->addend, (long) rel->address);
1115 if (rel->howto->pc_relative)
1117 printf (" %d bit rel.\n", (int) rel->howto->bitsize);
1120 pep_create_import_fixup (rel, s, _addend, name, symname);
1124 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1126 printf ("+%s\n", h->string);
1130 #endif /* DLL_SUPPORT */
1133 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1135 int *found = (int *) obj;
1137 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1142 pecoff_checksum_contents (bfd *abfd,
1143 void (*process) (const void *, size_t, void *),
1146 file_ptr filepos = (file_ptr) 0;
1153 if (bfd_seek (abfd, filepos, SEEK_SET) != 0)
1156 status = bfd_bread (&b, (bfd_size_type) 1, abfd);
1162 (*process) (&b, 1, arg);
1170 write_build_id (bfd *abfd)
1172 struct pe_tdata *t = pe_data (abfd);
1174 struct bfd_link_order *link_order = NULL;
1175 unsigned char *contents;
1177 bfd_size_type build_id_size;
1178 unsigned char *build_id;
1180 /* Find the section the .buildid output section has been merged info. */
1181 for (asec = abfd->sections; asec != NULL; asec = asec->next)
1183 struct bfd_link_order *l = NULL;
1184 for (l = asec->map_head.link_order; l != NULL; l = l->next)
1186 if (l->type == bfd_indirect_link_order)
1188 if (l->u.indirect.section == t->build_id.sec)
1202 einfo (_("%P: warning: .buildid section discarded,"
1203 " --build-id ignored\n"));
1207 if (t->build_id.sec->contents == NULL)
1208 t->build_id.sec->contents = (unsigned char *) xmalloc (t->build_id.sec->size);
1209 contents = t->build_id.sec->contents;
1210 size = t->build_id.sec->size;
1212 build_id_size = compute_build_id_size (t->build_id.style);
1213 build_id = xmalloc (build_id_size);
1214 generate_build_id (abfd, t->build_id.style, pecoff_checksum_contents, build_id, build_id_size);
1216 bfd_vma ib = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase;
1218 /* Construct a debug directory entry which points to an immediately following CodeView record. */
1219 struct internal_IMAGE_DEBUG_DIRECTORY idd;
1220 idd.Characteristics = 0;
1221 idd.TimeDateStamp = 0;
1222 idd.MajorVersion = 0;
1223 idd.MinorVersion = 0;
1224 idd.Type = PE_IMAGE_DEBUG_TYPE_CODEVIEW;
1225 idd.SizeOfData = sizeof (CV_INFO_PDB70) + 1;
1226 idd.AddressOfRawData = asec->vma - ib + link_order->offset
1227 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1228 idd.PointerToRawData = asec->filepos + link_order->offset
1229 + sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1231 struct external_IMAGE_DEBUG_DIRECTORY *ext = (struct external_IMAGE_DEBUG_DIRECTORY *)contents;
1232 _bfd_XXi_swap_debugdir_out (abfd, &idd, ext);
1234 /* Write the debug directory enttry */
1235 if (bfd_seek (abfd, asec->filepos + link_order->offset, SEEK_SET) != 0)
1238 if (bfd_bwrite (contents, size, abfd) != size)
1241 /* Construct the CodeView record. */
1242 CODEVIEW_INFO cvinfo;
1243 cvinfo.CVSignature = CVINFO_PDB70_CVSIGNATURE;
1246 /* Zero pad or truncate the generated build_id to fit in the CodeView record. */
1247 memset (&(cvinfo.Signature), 0, CV_INFO_SIGNATURE_LENGTH);
1248 memcpy (&(cvinfo.Signature), build_id, (build_id_size > CV_INFO_SIGNATURE_LENGTH)
1249 ? CV_INFO_SIGNATURE_LENGTH : build_id_size);
1253 /* Write the codeview record. */
1254 if (_bfd_XXi_write_codeview_record (abfd, idd.PointerToRawData, &cvinfo) == 0)
1257 /* Record the location of the debug directory in the data directory. */
1258 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].VirtualAddress
1259 = asec->vma - ib + link_order->offset;
1260 pe_data (link_info.output_bfd)->pe_opthdr.DataDirectory[PE_DEBUG_DATA].Size
1261 = sizeof (struct external_IMAGE_DEBUG_DIRECTORY);
1266 /* Make .buildid section, and set up coff_tdata->build_id. */
1268 setup_build_id (bfd *ibfd)
1273 if (!validate_build_id_style (emit_build_id))
1275 einfo (_("%P: warning: unrecognized --build-id style ignored\n"));
1279 flags = (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1280 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1281 s = bfd_make_section_anyway_with_flags (ibfd, ".buildid", flags);
1284 struct pe_tdata *t = pe_data (link_info.output_bfd);
1285 t->build_id.after_write_object_contents = &write_build_id;
1286 t->build_id.style = emit_build_id;
1287 t->build_id.sec = s;
1289 /* Section is a fixed size:
1290 One IMAGE_DEBUG_DIRECTORY entry, of type IMAGE_DEBUG_TYPE_CODEVIEW,
1291 pointing at a CV_INFO_PDB70 record containing the build-id, with a
1292 null byte for PdbFileName. */
1293 s->size = sizeof (struct external_IMAGE_DEBUG_DIRECTORY)
1294 + sizeof (CV_INFO_PDB70) + 1;
1299 einfo (_("%P: warning: cannot create .buildid section,"
1300 " --build-id ignored\n"));
1305 gld_${EMULATION_NAME}_after_open (void)
1307 after_open_default ();
1311 if (pep_dll_extra_pe_debug)
1314 struct bfd_link_hash_entry *sym;
1316 printf ("%s()\n", __FUNCTION__);
1318 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1319 printf ("-%s\n", sym->root.string);
1320 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1322 for (a = link_info.input_bfds; a; a = a->link.next)
1323 printf ("*%s\n",a->filename);
1327 if (emit_build_id != NULL)
1331 /* Find a COFF input. */
1332 for (abfd = link_info.input_bfds;
1333 abfd != (bfd *) NULL; abfd = abfd->link.next)
1334 if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
1337 /* If there are no COFF input files do not try to
1338 add a build-id section. */
1340 || !setup_build_id (abfd))
1342 free ((char *) emit_build_id);
1343 emit_build_id = NULL;
1347 /* Pass the wacky PE command line options into the output bfd.
1348 FIXME: This should be done via a function, rather than by
1349 including an internal BFD header. */
1351 if (coff_data (link_info.output_bfd) == NULL
1352 || coff_data (link_info.output_bfd)->pe == 0)
1353 einfo (_("%F%P: cannot perform PE operations on non PE output file '%pB'\n"),
1354 link_info.output_bfd);
1356 pe_data (link_info.output_bfd)->pe_opthdr = pep;
1357 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1358 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1359 pe_data (link_info.output_bfd)->insert_timestamp = insert_timestamp;
1361 /* At this point we must decide whether to use long section names
1362 in the output or not. If the user hasn't explicitly specified
1363 on the command line, we leave it to the default for the format
1364 (object files yes, image files no), except if there is debug
1365 information present; GDB relies on the long section names to
1366 find it, so enable it in that case. */
1367 if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1369 if (bfd_link_relocatable (&link_info))
1370 pep_use_coff_long_section_names = 1;
1373 /* Iterate over all sections of all input BFDs, checking
1374 for any that begin 'debug_' and are long names. */
1375 LANG_FOR_EACH_INPUT_STATEMENT (is)
1377 int found_debug = 0;
1379 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1382 pep_use_coff_long_section_names = 1;
1389 pep_output_file_set_long_section_names (link_info.output_bfd);
1392 pep_process_import_defs (link_info.output_bfd, &link_info);
1394 if (link_info.pei386_auto_import) /* -1=warn or 1=enable */
1395 pep_find_data_imports (U ("_head_"), make_import_fixup);
1397 /* The implementation of the feature is rather dumb and would cause the
1398 compilation time to go through the roof if there are many undefined
1399 symbols in the link, so it needs to be run after auto-import. */
1400 if (pep_enable_stdcall_fixup) /* -1=warn or 1=enable */
1401 pep_fixup_stdcalls ();
1403 #ifndef TARGET_IS_i386pep
1404 if (bfd_link_pic (&link_info))
1406 if (!bfd_link_relocatable (&link_info))
1408 pep_dll_build_sections (link_info.output_bfd, &link_info);
1410 #ifndef TARGET_IS_i386pep
1412 pep_exe_build_sections (link_info.output_bfd, &link_info);
1414 #endif /* DLL_SUPPORT */
1417 /* This next chunk of code tries to detect the case where you have
1418 two import libraries for the same DLL (specifically,
1419 symbolically linking libm.a and libc.a in cygwin to
1420 libcygwin.a). In those cases, it's possible for function
1421 thunks from the second implib to be used but without the
1422 head/tail objects, causing an improper import table. We detect
1423 those cases and rename the "other" import libraries to match
1424 the one the head/tail come from, so that the linker will sort
1425 things nicely and produce a valid import table. */
1427 LANG_FOR_EACH_INPUT_STATEMENT (is)
1429 if (is->the_bfd->my_archive)
1431 int idata2 = 0, reloc_count=0, is_imp = 0;
1434 /* See if this is an import library thunk. */
1435 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1437 if (strcmp (sec->name, ".idata\$2") == 0)
1439 if (CONST_STRNEQ (sec->name, ".idata\$"))
1441 reloc_count += sec->reloc_count;
1444 if (is_imp && !idata2 && reloc_count)
1446 /* It is, look for the reference to head and see if it's
1447 from our own library. */
1448 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1456 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1460 if (!bfd_generic_link_read_symbols (is->the_bfd))
1462 einfo (_("%F%P: %pB: could not read symbols: %E\n"),
1466 symbols = bfd_get_outsymbols (is->the_bfd);
1468 relocs = xmalloc ((size_t) relsize);
1469 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1474 einfo (_("%X%P: unable to process relocs: %E\n"));
1478 for (i = 0; i < nrelocs; i++)
1480 struct bfd_symbol *s;
1481 struct bfd_link_hash_entry * blhe;
1482 char *other_bfd_filename;
1485 s = (relocs[i]->sym_ptr_ptr)[0];
1487 if (s->flags & BSF_LOCAL)
1490 /* Thunk section with reloc to another bfd. */
1491 blhe = bfd_link_hash_lookup (link_info.hash,
1493 FALSE, FALSE, TRUE);
1496 || blhe->type != bfd_link_hash_defined)
1500 = blhe->u.def.section->owner->my_archive
1501 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1502 : bfd_get_filename (blhe->u.def.section->owner);
1504 if (filename_cmp (bfd_get_filename
1505 (is->the_bfd->my_archive),
1506 other_bfd_filename) == 0)
1509 /* Rename this implib to match the other one. */
1510 n = xmalloc (strlen (other_bfd_filename) + 1);
1511 strcpy (n, other_bfd_filename);
1512 is->the_bfd->my_archive->filename = n;
1516 /* Note - we do not free the symbols,
1517 they are now cached in the BFD. */
1527 lang_input_statement_type *is2;
1528 lang_input_statement_type *is3;
1530 /* Careful - this is a shell script. Watch those dollar signs! */
1531 /* Microsoft import libraries have every member named the same,
1532 and not in the right order for us to link them correctly. We
1533 must detect these and rename the members so that they'll link
1534 correctly. There are three types of objects: the head, the
1535 thunks, and the sentinel(s). The head is easy; it's the one
1536 with idata2. We assume that the sentinels won't have relocs,
1537 and the thunks will. It's easier than checking the symbol
1538 table for external references. */
1539 LANG_FOR_EACH_INPUT_STATEMENT (is)
1541 if (is->the_bfd->my_archive)
1544 bfd *arch = is->the_bfd->my_archive;
1546 if (cur_arch != arch)
1552 is3 && is3->the_bfd->my_archive == arch;
1553 is3 = (lang_input_statement_type *) is3->next)
1555 /* A MS dynamic import library can also contain static
1556 members, so look for the first element with a .dll
1557 extension, and use that for the remainder of the
1559 pnt = strrchr (is3->the_bfd->filename, '.');
1560 if (pnt != NULL && filename_cmp (pnt, ".dll") == 0)
1568 /* OK, found one. Now look to see if the remaining
1569 (dynamic import) members use the same name. */
1571 is2 && is2->the_bfd->my_archive == arch;
1572 is2 = (lang_input_statement_type *) is2->next)
1574 /* Skip static members, ie anything with a .obj
1576 pnt = strrchr (is2->the_bfd->filename, '.');
1577 if (pnt != NULL && filename_cmp (pnt, ".obj") == 0)
1580 if (filename_cmp (is3->the_bfd->filename,
1581 is2->the_bfd->filename))
1590 /* This fragment might have come from an .obj file in a Microsoft
1591 import, and not an actual import record. If this is the case,
1592 then leave the filename alone. */
1593 pnt = strrchr (is->the_bfd->filename, '.');
1595 if (is_ms_arch && (filename_cmp (pnt, ".dll") == 0))
1597 int idata2 = 0, reloc_count=0;
1599 char *new_name, seq;
1601 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1603 if (strcmp (sec->name, ".idata\$2") == 0)
1605 reloc_count += sec->reloc_count;
1608 if (idata2) /* .idata2 is the TOC */
1610 else if (reloc_count > 0) /* thunks */
1615 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1616 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1617 is->the_bfd->filename = new_name;
1619 new_name = xmalloc (strlen (is->filename) + 3);
1620 sprintf (new_name, "%s.%c", is->filename, seq);
1621 is->filename = new_name;
1629 gld_${EMULATION_NAME}_before_allocation (void)
1632 before_allocation_default ();
1636 /* This is called when an input file isn't recognized as a BFD. We
1637 check here for .DEF files and pull them in automatically. */
1640 saw_option (char *option)
1646 for (i = 0; init[i].ptr; i++)
1647 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1648 return init[i].inited;
1651 #endif /* DLL_SUPPORT */
1654 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1657 const char *ext = entry->filename + strlen (entry->filename) - 4;
1659 if (filename_cmp (ext, ".def") == 0 || filename_cmp (ext, ".DEF") == 0)
1661 pep_def_file = def_file_parse (entry->filename, pep_def_file);
1665 int i, buflen=0, len;
1668 for (i = 0; i < pep_def_file->num_exports; i++)
1670 len = strlen (pep_def_file->exports[i].internal_name);
1671 if (buflen < len + 2)
1675 buf = xmalloc (buflen);
1677 for (i = 0; i < pep_def_file->num_exports; i++)
1679 struct bfd_link_hash_entry *h;
1681 sprintf (buf, "%s%s", U (""),
1682 pep_def_file->exports[i].internal_name);
1684 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1685 if (h == (struct bfd_link_hash_entry *) NULL)
1686 einfo (_("%F%P: bfd_link_hash_lookup failed: %E\n"));
1687 if (h->type == bfd_link_hash_new)
1689 h->type = bfd_link_hash_undefined;
1690 h->u.undef.abfd = NULL;
1691 bfd_link_add_undef (link_info.hash, h);
1696 /* def_file_print (stdout, pep_def_file); */
1697 if (pep_def_file->is_dll == 1)
1698 link_info.type = type_dll;
1700 if (pep_def_file->base_address != (bfd_vma)(-1))
1703 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1704 = init[IMAGEBASEOFF].value
1705 = pep_def_file->base_address;
1706 init[IMAGEBASEOFF].inited = 1;
1707 if (image_base_statement)
1708 image_base_statement->exp
1709 = exp_assign ("__image_base__", exp_intop (pep.ImageBase),
1713 if (pep_def_file->stack_reserve != -1
1714 && ! saw_option ("__size_of_stack_reserve__"))
1716 pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1717 if (pep_def_file->stack_commit != -1)
1718 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1720 if (pep_def_file->heap_reserve != -1
1721 && ! saw_option ("__size_of_heap_reserve__"))
1723 pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1724 if (pep_def_file->heap_commit != -1)
1725 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1735 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1739 #ifdef TARGET_IS_i386pep
1740 pep_dll_id_target ("pei-x86-64");
1742 if (pep_bfd_is_dll (entry->the_bfd))
1743 return pep_implied_import_dll (entry->filename);
1749 gld_${EMULATION_NAME}_finish (void)
1755 if (bfd_link_pic (&link_info)
1756 || (!bfd_link_relocatable (&link_info)
1757 && pep_def_file->num_exports != 0))
1759 pep_dll_fill_sections (link_info.output_bfd, &link_info);
1760 if (command_line.out_implib_filename)
1761 pep_dll_generate_implib (pep_def_file,
1762 command_line.out_implib_filename, &link_info);
1765 if (pep_out_def_filename)
1766 pep_dll_generate_def_file (pep_out_def_filename);
1767 #endif /* DLL_SUPPORT */
1769 /* I don't know where .idata gets set as code, but it shouldn't be. */
1771 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1775 asec->flags &= ~SEC_CODE;
1776 asec->flags |= SEC_DATA;
1782 /* Place an orphan section.
1784 We use this to put sections in a reasonable place in the file, and
1785 to ensure that they are aligned as required.
1787 We handle grouped sections here as well. A section named .foo\$nn
1788 goes into the output section .foo. All grouped sections are sorted
1791 Grouped sections for the default sections are handled by the
1792 default linker script using wildcards, and are sorted by
1795 static lang_output_section_statement_type *
1796 gld_${EMULATION_NAME}_place_orphan (asection *s,
1797 const char *secname,
1800 const char *orig_secname = secname;
1801 char *dollar = NULL;
1802 lang_output_section_statement_type *os;
1803 lang_statement_list_type add_child;
1804 lang_output_section_statement_type *match_by_name = NULL;
1805 lang_statement_union_type **pl;
1807 /* Look through the script to see where to place this section. */
1808 if (!bfd_link_relocatable (&link_info)
1809 && (dollar = strchr (secname, '\$')) != NULL)
1811 size_t len = dollar - secname;
1812 char *newname = xmalloc (len + 1);
1813 memcpy (newname, secname, len);
1814 newname[len] = '\0';
1818 lang_list_init (&add_child);
1821 if (constraint == 0)
1822 for (os = lang_output_section_find (secname);
1824 os = next_matching_output_section_statement (os, 0))
1826 /* If we don't match an existing output section, tell
1827 lang_insert_orphan to create a new output section. */
1828 constraint = SPECIAL;
1830 if (os->bfd_section != NULL
1831 && (os->bfd_section->flags == 0
1832 || ((s->flags ^ os->bfd_section->flags)
1833 & (SEC_LOAD | SEC_ALLOC)) == 0))
1835 /* We already have an output section statement with this
1836 name, and its bfd section has compatible flags.
1837 If the section already exists but does not have any flags set,
1838 then it has been created by the linker, probably as a result of
1839 a --section-start command line switch. */
1840 lang_add_section (&add_child, s, NULL, os);
1844 /* Save unused output sections in case we can match them
1845 against orphans later. */
1846 if (os->bfd_section == NULL)
1850 /* If we didn't match an active output section, see if we matched an
1851 unused one and use that. */
1852 if (os == NULL && match_by_name)
1854 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
1855 return match_by_name;
1860 static struct orphan_save hold[] =
1863 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1866 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1869 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1872 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1878 enum orphan_save_index
1886 static int orphan_init_done = 0;
1887 struct orphan_save *place;
1888 lang_output_section_statement_type *after;
1889 etree_type *address;
1893 if (!orphan_init_done)
1895 struct orphan_save *ho;
1896 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1897 if (ho->name != NULL)
1899 ho->os = lang_output_section_find (ho->name);
1900 if (ho->os != NULL && ho->os->flags == 0)
1901 ho->os->flags = ho->flags;
1903 orphan_init_done = 1;
1907 if (!bfd_link_relocatable (&link_info))
1910 while ((nexts = bfd_get_next_section_by_name (nexts->owner,
1912 if (nexts->output_section == NULL
1913 && (nexts->flags & SEC_EXCLUDE) == 0
1914 && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
1915 && (nexts->owner->flags & DYNAMIC) == 0
1916 && nexts->owner->usrdata != NULL
1917 && !(((lang_input_statement_type *) nexts->owner->usrdata)
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 = (&lang_output_section_statement.head
1954 ->output_section_statement);
1957 /* All sections in an executable must be aligned to a page boundary.
1958 In a relocatable link, just preserve the incoming alignment; the
1959 address is discarded by lang_insert_orphan in that case, anyway. */
1960 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1961 os = lang_insert_orphan (s, secname, constraint, after, place, address,
1963 if (bfd_link_relocatable (&link_info))
1965 os->section_alignment = exp_intop (1U << s->alignment_power);
1966 os->bfd_section->alignment_power = s->alignment_power;
1970 /* If the section name has a '\$', sort it with the other '\$'
1972 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1974 lang_input_section_type *ls;
1977 if ((*pl)->header.type != lang_input_section_enum)
1980 ls = &(*pl)->input_section;
1982 lname = bfd_get_section_name (ls->section->owner, ls->section);
1983 if (strchr (lname, '\$') != NULL
1984 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1988 if (add_child.head != NULL)
1990 *add_child.tail = *pl;
1991 *pl = add_child.head;
1998 gld_${EMULATION_NAME}_open_dynamic_archive
1999 (const char *arch ATTRIBUTE_UNUSED,
2000 search_dirs_type *search,
2001 lang_input_statement_type *entry)
2005 const char * format;
2006 bfd_boolean use_prefix;
2010 /* Preferred explicit import library for dll's. */
2011 { "lib%s.dll.a", FALSE },
2012 /* Alternate explicit import library for dll's. */
2013 { "%s.dll.a", FALSE },
2014 /* "libfoo.a" could be either an import lib or a static lib.
2015 For backwards compatibility, libfoo.a needs to precede
2016 libfoo.dll and foo.dll in the search. */
2017 { "lib%s.a", FALSE },
2018 /* The 'native' spelling of an import lib name is "foo.lib". */
2019 { "%s.lib", FALSE },
2020 /* PR 22948 - Check for an import library. */
2021 { "lib%s.lib", FALSE },
2023 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
2024 { "%s%s.dll", TRUE },
2026 /* Try "libfoo.dll" (default preferred dll name). */
2027 { "lib%s.dll", FALSE },
2028 /* Finally try 'native' dll name "foo.dll". */
2029 { "%s.dll", FALSE },
2030 /* Note: If adding more formats to this table, make sure to check to
2031 see if their length is longer than libname_fmt[0].format, and if
2032 so, update the call to xmalloc() below. */
2035 static unsigned int format_max_len = 0;
2036 const char * filename;
2042 if (! entry->flags.maybe_archive || entry->flags.full_name_provided)
2045 filename = entry->filename;
2047 if (format_max_len == 0)
2048 /* We need to allow space in the memory that we are going to allocate
2049 for the characters in the format string. Since the format array is
2050 static we only need to calculate this information once. In theory
2051 this value could also be computed statically, but this introduces
2052 the possibility for a discrepancy and hence a possible memory
2053 corruption. The lengths we compute here will be too long because
2054 they will include any formating characters (%s) in the strings, but
2055 this will not matter. */
2056 for (i = 0; libname_fmt[i].format; i++)
2057 if (format_max_len < strlen (libname_fmt[i].format))
2058 format_max_len = strlen (libname_fmt[i].format);
2060 full_string = xmalloc (strlen (search->name)
2064 + (pep_dll_search_prefix
2065 ? strlen (pep_dll_search_prefix) : 0)
2067 /* Allow for the terminating NUL and for the path
2068 separator character that is inserted between
2069 search->name and the start of the format string. */
2072 sprintf (full_string, "%s/", search->name);
2073 base_string = full_string + strlen (full_string);
2075 for (i = 0; libname_fmt[i].format; i++)
2078 if (libname_fmt[i].use_prefix)
2080 if (!pep_dll_search_prefix)
2082 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
2086 sprintf (base_string, libname_fmt[i].format, filename);
2088 if (ldfile_try_open_bfd (full_string, entry))
2092 if (!libname_fmt[i].format)
2098 entry->filename = full_string;
2104 gld_${EMULATION_NAME}_find_potential_libraries
2105 (char *name, lang_input_statement_type *entry)
2107 return ldfile_open_file_search (name, entry, "", ".lib");
2111 gld_${EMULATION_NAME}_get_script (int *isfile)
2113 # Scripts compiled in.
2114 # sed commands to quote an ld script as a C string.
2115 sc="-f stringify.sed"
2121 if (bfd_link_relocatable (&link_info) && config.build_constructors)
2124 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2125 echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
2126 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2127 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2128 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
2129 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2130 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
2131 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
2132 echo ' ; else if (link_info.pei386_auto_import == 1 && link_info.pei386_runtime_pseudo_reloc != 2) return' >> e${EMULATION_NAME}.c
2133 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
2135 echo ' ; else return' >> e${EMULATION_NAME}.c
2136 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2137 echo '; }' >> e${EMULATION_NAME}.c
2142 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
2144 gld_${EMULATION_NAME}_before_parse,
2147 gld_${EMULATION_NAME}_after_parse,
2148 gld_${EMULATION_NAME}_after_open,
2149 after_check_relocs_default,
2150 after_allocation_default,
2151 set_output_arch_default,
2152 ldemul_default_target,
2153 gld_${EMULATION_NAME}_before_allocation,
2154 gld_${EMULATION_NAME}_get_script,
2155 "${EMULATION_NAME}",
2157 gld_${EMULATION_NAME}_finish,
2158 NULL, /* Create output section statements. */
2159 gld_${EMULATION_NAME}_open_dynamic_archive,
2160 gld_${EMULATION_NAME}_place_orphan,
2161 gld_${EMULATION_NAME}_set_symbols,
2162 NULL, /* parse_args */
2163 gld${EMULATION_NAME}_add_options,
2164 gld${EMULATION_NAME}_handle_option,
2165 gld_${EMULATION_NAME}_unrecognized_file,
2166 gld_${EMULATION_NAME}_list_options,
2167 gld_${EMULATION_NAME}_recognized_file,
2168 gld_${EMULATION_NAME}_find_potential_libraries,
2169 NULL, /* new_vers_pattern. */
2170 NULL /* extra_map_file_text */