1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 if [ -z "$MACHINE" ]; then
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
8 rm -f e${EMULATION_NAME}.c
9 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
11 /* Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
12 Written by Kai Tietz, OneVision Software GmbH&CoKg.
14 This file is part of the GNU Binutils.
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
18 the Free Software Foundation; either version 3 of the License, or
19 (at your option) any later version.
21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
26 You should have received a copy of the GNU General Public License
27 along with this program; if not, write to the Free Software
28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
29 MA 02110-1301, USA. */
32 /* For WINDOWS_XP64 and higher */
33 /* Based on pe.em, but modified for 64 bit support. */
35 #define TARGET_IS_${EMULATION_NAME}
37 #define COFF_IMAGE_WITH_PE
39 #define COFF_WITH_pex64
45 #include "libiberty.h"
56 #include "coff/internal.h"
58 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
59 header in generic PE code. */
60 #include "coff/x86_64.h"
63 /* FIXME: This is a BFD internal header file, and we should not be
65 #include "../bfd/libcoff.h"
68 #define AOUTSZ PEPAOUTSZ
69 #define PEAOUTHDR PEPAOUTHDR
73 #include "safe-ctype.h"
75 /* Permit the emulation parameters to override the default section
76 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
77 it seem that include/coff/internal.h should not define
78 PE_DEF_SECTION_ALIGNMENT. */
79 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
80 #undef PE_DEF_SECTION_ALIGNMENT
81 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
84 #ifdef TARGET_IS_i386pep
88 #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
89 #define PE_DEF_SUBSYSTEM 3
91 #undef NT_EXE_IMAGE_BASE
92 #define NT_EXE_IMAGE_BASE 0x00010000
93 #undef PE_DEF_SECTION_ALIGNMENT
94 #define PE_DEF_SUBSYSTEM 2
95 #undef PE_DEF_FILE_ALIGNMENT
96 #define PE_DEF_FILE_ALIGNMENT 0x00000200
97 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
100 static struct internal_extra_pe_aouthdr pep;
102 static int pep_subsystem = ${SUBSYSTEM};
103 static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
104 static int support_old_code = 0;
105 static lang_assignment_statement_type *image_base_statement = 0;
106 static unsigned short pe_dll_characteristics = 0;
109 static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
110 static char * pep_out_def_filename = NULL;
111 static char * pep_implib_filename = NULL;
112 static int pep_enable_auto_image_base = 0;
113 static char * pep_dll_search_prefix = NULL;
116 extern const char *output_filename;
119 gld_${EMULATION_NAME}_before_parse (void)
122 /* Now we check target's default for getting proper symbol_char. */
123 u = pep_leading_underscore;
125 && !bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
126 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
130 pep_leading_underscore = u;
132 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
133 output_filename = "${EXECUTABLE_NAME:-a.exe}";
135 config.dynamic_link = TRUE;
136 config.has_shared = 1;
137 link_info.pei386_auto_import = -1;
138 link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */
142 /* PE format extra command line options. */
144 /* Used for setting flags in the PE header. */
147 OPTION_BASE_FILE = 300 + 1,
149 OPTION_FILE_ALIGNMENT,
151 OPTION_MAJOR_IMAGE_VERSION,
152 OPTION_MAJOR_OS_VERSION,
153 OPTION_MAJOR_SUBSYSTEM_VERSION,
154 OPTION_MINOR_IMAGE_VERSION,
155 OPTION_MINOR_OS_VERSION,
156 OPTION_MINOR_SUBSYSTEM_VERSION,
157 OPTION_SECTION_ALIGNMENT,
161 OPTION_SUPPORT_OLD_CODE,
164 OPTION_EXCLUDE_SYMBOLS,
165 OPTION_EXCLUDE_ALL_SYMBOLS,
167 OPTION_STDCALL_ALIASES,
168 OPTION_ENABLE_STDCALL_FIXUP,
169 OPTION_DISABLE_STDCALL_FIXUP,
170 OPTION_IMPLIB_FILENAME,
171 OPTION_WARN_DUPLICATE_EXPORTS,
173 OPTION_ENABLE_AUTO_IMAGE_BASE,
174 OPTION_DISABLE_AUTO_IMAGE_BASE,
175 OPTION_DLL_SEARCH_PREFIX,
176 OPTION_NO_DEFAULT_EXCLUDES,
177 OPTION_DLL_ENABLE_AUTO_IMPORT,
178 OPTION_DLL_DISABLE_AUTO_IMPORT,
179 OPTION_ENABLE_EXTRA_PE_DEBUG,
181 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
182 OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
183 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1,
184 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
185 OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
186 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
187 OPTION_NO_LEADING_UNDERSCORE,
188 OPTION_LEADING_UNDERSCORE,
189 OPTION_ENABLE_LONG_SECTION_NAMES,
190 OPTION_DISABLE_LONG_SECTION_NAMES,
192 OPTION_FORCE_INTEGRITY,
198 OPTION_TERMINAL_SERVER_AWARE
202 gld${EMULATION_NAME}_add_options
203 (int ns ATTRIBUTE_UNUSED,
204 char **shortopts ATTRIBUTE_UNUSED,
206 struct option **longopts,
207 int nrl ATTRIBUTE_UNUSED,
208 struct option **really_longopts ATTRIBUTE_UNUSED)
210 static const struct option xtra_long[] =
213 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
214 {"dll", no_argument, NULL, OPTION_DLL},
215 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
216 {"heap", required_argument, NULL, OPTION_HEAP},
217 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
218 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
219 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
220 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
221 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
222 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
223 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
224 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
225 {"stack", required_argument, NULL, OPTION_STACK},
226 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
227 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
228 {"use-nul-prefixed-import-tables", no_argument, NULL,
229 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
230 {"no-leading-underscore", no_argument, NULL, OPTION_NO_LEADING_UNDERSCORE},
231 {"leading-underscore", no_argument, NULL, OPTION_LEADING_UNDERSCORE},
233 /* getopt allows abbreviations, so we do this to stop it
234 from treating -o as an abbreviation for this option. */
235 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
236 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
237 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
238 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
239 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
240 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
241 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
242 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
243 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
244 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
245 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
246 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
247 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
248 /* getopt() allows abbreviations, so we do this to stop it from
249 treating -c as an abbreviation for these --compat-implib. */
250 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
251 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
252 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
253 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
254 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
255 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
256 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
257 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
258 {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
259 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
260 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
261 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
262 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
264 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
265 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
266 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
267 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
268 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
269 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
270 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
271 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
272 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
273 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
274 {NULL, no_argument, NULL, 0}
278 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
279 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
282 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
283 parameters which may be input from the command line. */
292 /* FALSE for an assembly level symbol and TRUE for a C visible symbol.
293 C visible symbols can be prefixed by underscore dependent on target's
295 bfd_boolean is_c_symbol;
298 #define GET_INIT_SYMBOL_NAME(IDX) \
299 (init[(IDX)].symbol \
300 + ((init[(IDX)].is_c_symbol == FALSE || pep_leading_underscore == 1) ? 0 : 1))
302 /* Decorates the C visible symbol by underscore, if target requires. */
304 (pep_leading_underscore != 1 ? CSTR : "_" CSTR)
306 /* Get size of constant string for a possible underscore prefixed
308 #define U_SIZE(CSTR) \
309 (sizeof (CSTR) + pep_leading_underscore == 1 ? 0 : 1)
311 #define D(field,symbol,def,usc) {&pep.field,sizeof(pep.field), def, symbol,0, usc}
313 static definfo init[] =
315 /* imagebase must be first */
316 #define IMAGEBASEOFF 0
317 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE, FALSE),
319 {&dll, sizeof(dll), 0, "__dll__", 0, FALSE},
320 #define MSIMAGEBASEOFF 2
321 D(ImageBase, "___ImageBase", NT_EXE_IMAGE_BASE, TRUE),
322 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT, FALSE),
323 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT, FALSE),
324 D(MajorOperatingSystemVersion,"__major_os_version__", 4, FALSE),
325 D(MinorOperatingSystemVersion,"__minor_os_version__", 0, FALSE),
326 D(MajorImageVersion,"__major_image_version__", 0, FALSE),
327 D(MinorImageVersion,"__minor_image_version__", 0, FALSE),
328 D(MajorSubsystemVersion,"__major_subsystem_version__", 5, FALSE),
329 D(MinorSubsystemVersion,"__minor_subsystem_version__", 2, FALSE),
330 D(Subsystem,"__subsystem__", ${SUBSYSTEM}, FALSE),
331 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000, FALSE),
332 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000, FALSE),
333 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000, FALSE),
334 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000, FALSE),
335 D(LoaderFlags,"__loader_flags__", 0x0, FALSE),
336 D(DllCharacteristics, "__dll_characteristics__", 0x0, FALSE),
337 { NULL, 0, 0, NULL, 0, FALSE}
342 gld_${EMULATION_NAME}_list_options (FILE *file)
344 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
345 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
346 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
347 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
348 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
349 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
350 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
351 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
352 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
353 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
354 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
355 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
356 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
357 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
358 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
359 fprintf (file, _(" --[no-]leading-underscore Set explicit symbol underscore prefix mode\n"));
361 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
362 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
363 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
364 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
365 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
366 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
367 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
368 fprintf (file, _(" Exclude objects, archive members from auto\n"));
369 fprintf (file, _(" export, place into import library instead.\n"));
370 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
371 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
372 fprintf (file, _(" --out-implib <file> Generate import library\n"));
373 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
374 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
375 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
376 create __imp_<SYMBOL> as well.\n"));
377 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
378 unless user specifies one\n"));
379 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
380 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
381 an importlib, use <string><basename>.dll\n\
382 in preference to lib<basename>.dll \n"));
383 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\
384 __imp_sym for DATA references\n"));
385 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
386 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
387 adding pseudo-relocations resolved at\n\
389 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
390 auto-imported DATA.\n"));
391 fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\
392 or linking to DLLs (esp. auto-import)\n"));
393 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
394 executable image files\n"));
395 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
396 in object files\n"));
397 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
398 address space layout randomization (ASLR)\n"));
399 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
400 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
401 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
402 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\
403 be called in this image\n"));
404 fprintf (file, _(" --no-bind Do not bind this image\n"));
405 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
406 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
412 set_pep_name (char *name, bfd_vma val)
416 /* Now we check target's default for getting proper symbol_char. */
417 u = pep_leading_underscore;
419 && !bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
420 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
424 pep_leading_underscore = u;
426 /* Find the name and set it. */
427 for (i = 0; init[i].ptr; i++)
429 if (strcmp (name, GET_INIT_SYMBOL_NAME (i)) == 0)
433 if (strcmp (name,"__image_base__") == 0)
434 set_pep_name (U ("__ImageBase"), val);
442 set_entry_point (void)
445 const char *initial_symbol_char;
455 { 1, "NtProcessStartup" },
456 { 2, "WinMainCRTStartup" },
457 { 3, "mainCRTStartup" },
458 { 7, "__PosixProcessStartup" },
459 { 9, "WinMainCRTStartup" },
460 {14, "mainCRTStartup" },
464 /* Entry point name for arbitrary subsystem numbers. */
465 static const char default_entry[] = "mainCRTStartup";
467 if (link_info.shared || dll)
469 entry = "DllMainCRTStartup";
473 for (i = 0; v[i].entry; i++)
474 if (v[i].value == pep_subsystem)
477 /* If no match, use the default. */
478 if (v[i].entry != NULL)
481 entry = default_entry;
484 /* Now we check target's default for getting proper symbol_char. */
485 u = pep_leading_underscore;
487 && !bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
488 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
492 initial_symbol_char = (u == 1 ? "_" : "");
493 pep_leading_underscore = u;
495 if (*initial_symbol_char != '\0')
499 /* lang_default_entry expects its argument to be permanently
500 allocated, so we don't free this string. */
501 alc_entry = xmalloc (strlen (initial_symbol_char)
504 strcpy (alc_entry, initial_symbol_char);
505 strcat (alc_entry, entry);
509 lang_default_entry (entry);
513 set_pep_subsystem (void)
519 unsigned long temp_subsystem;
536 /* Check for the presence of a version number. */
537 sver = strchr (optarg, ':');
539 len = strlen (optarg);
543 set_pep_name ("__major_subsystem_version__",
544 strtoul (sver + 1, &end, 0));
546 set_pep_name ("__minor_subsystem_version__",
547 strtoul (end + 1, &end, 0));
549 einfo (_("%P: warning: bad version number in -subsystem option\n"));
552 /* Check for numeric subsystem. */
553 temp_subsystem = strtoul (optarg, & end, 0);
554 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
556 /* Search list for a numeric match to use its entry point. */
557 for (i = 0; v[i].name; i++)
558 if (v[i].value == (int) temp_subsystem)
561 /* Use this subsystem. */
562 pep_subsystem = (int) temp_subsystem;
566 /* Search for subsystem by name. */
567 for (i = 0; v[i].name; i++)
568 if (strncmp (optarg, v[i].name, len) == 0
569 && v[i].name[len] == '\0')
572 if (v[i].name == NULL)
574 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
578 pep_subsystem = v[i].value;
581 set_pep_name ("__subsystem__", pep_subsystem);
588 set_pep_value (char *name)
592 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));
595 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
602 set_pep_stack_heap (char *resname, char *comname)
604 set_pep_value (resname);
609 set_pep_value (comname);
612 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
617 gld${EMULATION_NAME}_handle_option (int optc)
624 case OPTION_BASE_FILE:
625 link_info.base_file = fopen (optarg, FOPEN_WB);
626 if (link_info.base_file == NULL)
628 /* xgettext:c-format */
629 fprintf (stderr, _("%s: Can't open base file %s\n"),
630 program_name, optarg);
637 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
640 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
642 case OPTION_SUBSYSTEM:
643 set_pep_subsystem ();
645 case OPTION_MAJOR_OS_VERSION:
646 set_pep_value ("__major_os_version__");
648 case OPTION_MINOR_OS_VERSION:
649 set_pep_value ("__minor_os_version__");
651 case OPTION_MAJOR_SUBSYSTEM_VERSION:
652 set_pep_value ("__major_subsystem_version__");
654 case OPTION_MINOR_SUBSYSTEM_VERSION:
655 set_pep_value ("__minor_subsystem_version__");
657 case OPTION_MAJOR_IMAGE_VERSION:
658 set_pep_value ("__major_image_version__");
660 case OPTION_MINOR_IMAGE_VERSION:
661 set_pep_value ("__minor_image_version__");
663 case OPTION_FILE_ALIGNMENT:
664 set_pep_value ("__file_alignment__");
666 case OPTION_SECTION_ALIGNMENT:
667 set_pep_value ("__section_alignment__");
670 set_pep_name ("__dll__", 1);
672 case OPTION_IMAGE_BASE:
673 set_pep_value ("__image_base__");
675 case OPTION_SUPPORT_OLD_CODE:
676 support_old_code = 1;
678 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
679 pep_use_nul_prefixed_import_tables = TRUE;
681 case OPTION_NO_LEADING_UNDERSCORE:
682 pep_leading_underscore = 0;
684 case OPTION_LEADING_UNDERSCORE:
685 pep_leading_underscore = 1;
689 pep_out_def_filename = xstrdup (optarg);
691 case OPTION_EXPORT_ALL:
692 pep_dll_export_everything = 1;
694 case OPTION_EXCLUDE_SYMBOLS:
695 pep_dll_add_excludes (optarg, EXCLUDESYMS);
697 case OPTION_EXCLUDE_ALL_SYMBOLS:
698 pep_dll_exclude_all_symbols = 1;
700 case OPTION_EXCLUDE_LIBS:
701 pep_dll_add_excludes (optarg, EXCLUDELIBS);
703 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
704 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
706 case OPTION_KILL_ATS:
707 pep_dll_kill_ats = 1;
709 case OPTION_STDCALL_ALIASES:
710 pep_dll_stdcall_aliases = 1;
712 case OPTION_ENABLE_STDCALL_FIXUP:
713 pep_enable_stdcall_fixup = 1;
715 case OPTION_DISABLE_STDCALL_FIXUP:
716 pep_enable_stdcall_fixup = 0;
718 case OPTION_IMPLIB_FILENAME:
719 pep_implib_filename = xstrdup (optarg);
721 case OPTION_WARN_DUPLICATE_EXPORTS:
722 pep_dll_warn_dup_exports = 1;
724 case OPTION_IMP_COMPAT:
725 pep_dll_compat_implib = 1;
727 case OPTION_ENABLE_AUTO_IMAGE_BASE:
728 pep_enable_auto_image_base = 1;
730 case OPTION_DISABLE_AUTO_IMAGE_BASE:
731 pep_enable_auto_image_base = 0;
733 case OPTION_DLL_SEARCH_PREFIX:
734 pep_dll_search_prefix = xstrdup (optarg);
736 case OPTION_NO_DEFAULT_EXCLUDES:
737 pep_dll_do_default_excludes = 0;
739 case OPTION_DLL_ENABLE_AUTO_IMPORT:
740 link_info.pei386_auto_import = 1;
742 case OPTION_DLL_DISABLE_AUTO_IMPORT:
743 link_info.pei386_auto_import = 0;
745 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
746 link_info.pei386_runtime_pseudo_reloc = 2;
748 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
749 link_info.pei386_runtime_pseudo_reloc = 0;
751 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
752 link_info.pei386_runtime_pseudo_reloc = 1;
754 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
755 link_info.pei386_runtime_pseudo_reloc = 2;
757 case OPTION_ENABLE_EXTRA_PE_DEBUG:
758 pep_dll_extra_pe_debug = 1;
761 case OPTION_ENABLE_LONG_SECTION_NAMES:
762 pep_use_coff_long_section_names = 1;
764 case OPTION_DISABLE_LONG_SECTION_NAMES:
765 pep_use_coff_long_section_names = 0;
767 /* Get DLLCharacteristics bits */
768 case OPTION_DYNAMIC_BASE:
769 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
771 case OPTION_FORCE_INTEGRITY:
772 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
774 case OPTION_NX_COMPAT:
775 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
777 case OPTION_NO_ISOLATION:
778 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
781 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
784 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
786 case OPTION_WDM_DRIVER:
787 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
789 case OPTION_TERMINAL_SERVER_AWARE:
790 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
794 /* Set DLLCharacteristics bits */
795 set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
803 strhash (const char *str)
805 const unsigned char *s;
812 s = (const unsigned char *) str;
813 while ((c = *s++) != '\0')
815 hash += c + (c << 17);
819 hash += len + (len << 17);
825 /* Use the output file to create a image base for relocatable DLLs. */
828 compute_dll_image_base (const char *ofile)
830 bfd_vma hash = (bfd_vma) strhash (ofile);
831 return 0x61300000 + ((hash << 16) & 0x0FFC0000);
835 /* Assign values to the special symbols before the linker script is
839 gld_${EMULATION_NAME}_set_symbols (void)
841 /* Run through and invent symbols for all the
842 names and insert the defaults. */
844 /* Now we check target's default for getting proper symbol_char. */
845 u = pep_leading_underscore;
847 && !bfd_get_target_info ("${OUTPUT_FORMAT}", NULL, NULL, &u, NULL))
848 bfd_get_target_info ("${RELOCATEABLE_OUTPUT_FORMAT}", NULL, NULL, &u, NULL);
852 pep_leading_underscore = u;
854 if (!init[IMAGEBASEOFF].inited)
856 if (link_info.relocatable)
857 init[IMAGEBASEOFF].value = 0;
858 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
861 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
862 ? compute_dll_image_base (output_filename)
863 : NT_DLL_IMAGE_BASE);
865 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
869 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
870 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
873 /* Don't do any symbol assignments if this is a relocatable link. */
874 if (link_info.relocatable)
877 /* Glue the assignments into the abs section. */
878 push_stat_ptr (&abs_output_section->children);
880 for (j = 0; init[j].ptr; j++)
882 bfd_vma val = init[j].value;
883 lang_assignment_statement_type *rv;
885 rv = lang_add_assignment (exp_assop ('=', GET_INIT_SYMBOL_NAME (j),
887 if (init[j].size == sizeof (short))
888 *(short *) init[j].ptr = (short) val;
889 else if (init[j].size == sizeof (int))
890 *(int *) init[j].ptr = (int) val;
891 else if (init[j].size == sizeof (long))
892 *(long *) init[j].ptr = (long) val;
893 /* This might be a long long or other special type. */
894 else if (init[j].size == sizeof (bfd_vma))
895 *(bfd_vma *) init[j].ptr = val;
897 if (j == IMAGEBASEOFF)
898 image_base_statement = rv;
900 /* Restore the pointer. */
903 if (pep.FileAlignment > pep.SectionAlignment)
905 einfo (_("%P: warning, file alignment > section alignment.\n"));
909 /* This is called after the linker script and the command line options
913 gld_${EMULATION_NAME}_after_parse (void)
915 /* PR ld/6744: Warn the user if they have used an ELF-only
916 option hoping it will work on PE+. */
917 if (link_info.export_dynamic)
918 einfo (_("%P: warning: --export-dynamic is not supported for PE+ "
919 "targets, did you mean --export-all-symbols?\n"));
923 after_parse_default ();
926 /* pep-dll.c directly accesses pep_data_import_dll,
927 so it must be defined outside of #ifdef DLL_SUPPORT.
928 Note - this variable is deliberately not initialised.
929 This allows it to be treated as a common varaible, and only
930 exist in one incarnation in a multiple target enabled linker. */
931 char * pep_data_import_dll;
934 static struct bfd_link_hash_entry *pep_undef_found_sym;
937 pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
941 const char *hs = h->root.string;
943 sl = strlen (string);
944 if (h->type == bfd_link_hash_defined
945 && ((*hs == '@' && *string == '_'
946 && strncmp (hs + 1, string + 1, sl - 1) == 0)
947 || strncmp (hs, string, sl) == 0)
948 && h->root.string[sl] == '@')
950 pep_undef_found_sym = h;
957 pep_fixup_stdcalls (void)
959 static int gave_warning_message = 0;
960 struct bfd_link_hash_entry *undef, *sym;
962 if (pep_dll_extra_pe_debug)
963 printf ("%s\n", __FUNCTION__);
965 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
966 if (undef->type == bfd_link_hash_undefined)
968 char* at = strchr (undef->root.string, '@');
969 int lead_at = (*undef->root.string == '@');
971 at = strchr (undef->root.string + 1, '@');
974 /* The symbol is a stdcall symbol, so let's look for a
975 cdecl symbol with the same name and resolve to that. */
976 char *cname = xstrdup (undef->root.string);
980 at = strchr (cname, '@');
983 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
985 if (sym && sym->type == bfd_link_hash_defined)
987 undef->type = bfd_link_hash_defined;
988 undef->u.def.value = sym->u.def.value;
989 undef->u.def.section = sym->u.def.section;
991 if (pep_enable_stdcall_fixup == -1)
993 einfo (_("Warning: resolving %s by linking to %s\n"),
994 undef->root.string, cname);
995 if (! gave_warning_message)
997 gave_warning_message = 1;
998 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
999 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1006 /* The symbol is a cdecl symbol, so we look for stdcall
1007 symbols - which means scanning the whole symbol table. */
1008 pep_undef_found_sym = 0;
1009 bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
1010 (char *) undef->root.string);
1011 sym = pep_undef_found_sym;
1014 undef->type = bfd_link_hash_defined;
1015 undef->u.def.value = sym->u.def.value;
1016 undef->u.def.section = sym->u.def.section;
1018 if (pep_enable_stdcall_fixup == -1)
1020 einfo (_("Warning: resolving %s by linking to %s\n"),
1021 undef->root.string, sym->root.string);
1022 if (! gave_warning_message)
1024 gave_warning_message = 1;
1025 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
1026 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
1035 make_import_fixup (arelent *rel, asection *s)
1037 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
1039 bfd_vma _addend = 0;
1042 if (pep_dll_extra_pe_debug)
1043 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
1044 (unsigned long) rel->address, (long) rel->addend);
1046 memset (addend, 0, sizeof (addend));
1047 switch ((rel->howto->bitsize))
1050 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
1051 if (suc && rel->howto->pc_relative)
1052 _addend = (bfd_vma) ((bfd_signed_vma) ((char) bfd_get_8 (s->owner, addend)));
1054 _addend = ((bfd_vma) bfd_get_8 (s->owner, addend)) & 0xff;
1057 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
1058 if (suc && rel->howto->pc_relative)
1059 _addend = (bfd_vma) ((bfd_signed_vma) ((short) bfd_get_16 (s->owner, addend)));
1061 _addend = ((bfd_vma) bfd_get_16 (s->owner, addend)) & 0xffff;
1064 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
1065 if (suc && rel->howto->pc_relative)
1066 _addend = (bfd_vma) ((bfd_signed_vma) ((int) bfd_get_32 (s->owner, addend)));
1068 _addend = ((bfd_vma) bfd_get_32 (s->owner, addend)) & 0xffffffff;
1071 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
1073 _addend = ((bfd_vma) bfd_get_64 (s->owner, addend));
1077 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
1078 s->owner, s, rel->address);
1080 if (pep_dll_extra_pe_debug)
1082 printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", (long) _addend, (long) rel->addend, (long) rel->address);
1083 if (rel->howto->pc_relative) printf (" pcrel");
1084 printf (" %d bit rel.\n",(int) rel->howto->bitsize);
1086 pep_create_import_fixup (rel, s, _addend);
1092 pep_find_data_imports (void)
1094 struct bfd_link_hash_entry *undef, *sym;
1096 if (link_info.pei386_auto_import == 0)
1099 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1101 if (undef->type == bfd_link_hash_undefined)
1103 /* C++ symbols are *long*. */
1106 if (pep_dll_extra_pe_debug)
1107 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1109 sprintf (buf, "__imp_%s", undef->root.string);
1111 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1113 if (sym && sym->type == bfd_link_hash_defined)
1115 bfd *b = sym->u.def.section->owner;
1119 if (link_info.pei386_auto_import == -1)
1121 static bfd_boolean warned = FALSE;
1123 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
1124 undef->root.string, buf);
1126 /* PR linker/4844. */
1130 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
1131 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
1135 if (!bfd_generic_link_read_symbols (b))
1137 einfo (_("%B%F: could not read symbols: %E\n"), b);
1141 symbols = bfd_get_outsymbols (b);
1142 nsyms = bfd_get_symcount (b);
1144 for (i = 0; i < nsyms; i++)
1146 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
1149 if (pep_dll_extra_pe_debug)
1150 printf ("->%s\n", symbols[i]->name);
1152 pep_data_import_dll = (char*) (symbols[i]->name +
1153 U_SIZE ("_head_") - 1);
1157 pep_walk_relocs_of_symbol (&link_info, undef->root.string,
1160 /* Let's differentiate it somehow from defined. */
1161 undef->type = bfd_link_hash_defweak;
1162 /* We replace original name with __imp_ prefixed, this
1163 1) may trash memory 2) leads to duplicate symbol generation.
1164 Still, IMHO it's better than having name poluted. */
1165 undef->root.string = sym->root.string;
1166 undef->u.def.value = sym->u.def.value;
1167 undef->u.def.section = sym->u.def.section;
1174 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1176 if (pep_dll_extra_pe_debug)
1177 printf ("+%s\n", h->string);
1181 #endif /* DLL_SUPPORT */
1184 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1186 int *found = (int *) obj;
1187 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1192 gld_${EMULATION_NAME}_after_open (void)
1195 if (pep_dll_extra_pe_debug)
1198 struct bfd_link_hash_entry *sym;
1200 printf ("%s()\n", __FUNCTION__);
1202 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1203 printf ("-%s\n", sym->root.string);
1204 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1206 for (a = link_info.input_bfds; a; a = a->link_next)
1207 printf ("*%s\n",a->filename);
1211 /* Pass the wacky PE command line options into the output bfd.
1212 FIXME: This should be done via a function, rather than by
1213 including an internal BFD header. */
1215 if (coff_data (link_info.output_bfd) == NULL
1216 || coff_data (link_info.output_bfd)->pe == 0)
1217 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1218 link_info.output_bfd);
1220 pe_data (link_info.output_bfd)->pe_opthdr = pep;
1221 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1222 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1224 /* At this point we must decide whether to use long section names
1225 in the output or not. If the user hasn't explicitly specified
1226 on the command line, we leave it to the default for the format
1227 (object files yes, image files no), except if there is debug
1228 information present; GDB relies on the long section names to
1229 find it, so enable it in that case. */
1230 if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1232 /* Iterate over all sections of all input BFDs, checking
1233 for any that begin 'debug_' and are long names. */
1234 LANG_FOR_EACH_INPUT_STATEMENT (is)
1236 int found_debug = 0;
1237 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1240 pep_use_coff_long_section_names = 1;
1246 pep_output_file_set_long_section_names (link_info.output_bfd);
1249 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1250 pep_fixup_stdcalls ();
1252 pep_process_import_defs (link_info.output_bfd, &link_info);
1254 pep_find_data_imports ();
1256 /* As possibly new symbols are added by imports, we rerun
1257 stdcall/fastcall fixup here. */
1258 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1259 pep_fixup_stdcalls ();
1261 #ifndef TARGET_IS_i386pep
1262 if (link_info.shared)
1264 if (!link_info.relocatable)
1266 pep_dll_build_sections (link_info.output_bfd, &link_info);
1268 #ifndef TARGET_IS_i386pep
1270 pep_exe_build_sections (link_info.output_bfd, &link_info);
1272 #endif /* DLL_SUPPORT */
1275 /* This next chunk of code tries to detect the case where you have
1276 two import libraries for the same DLL (specifically,
1277 symbolically linking libm.a and libc.a in cygwin to
1278 libcygwin.a). In those cases, it's possible for function
1279 thunks from the second implib to be used but without the
1280 head/tail objects, causing an improper import table. We detect
1281 those cases and rename the "other" import libraries to match
1282 the one the head/tail come from, so that the linker will sort
1283 things nicely and produce a valid import table. */
1285 LANG_FOR_EACH_INPUT_STATEMENT (is)
1287 if (is->the_bfd->my_archive)
1289 int idata2 = 0, reloc_count=0, is_imp = 0;
1292 /* See if this is an import library thunk. */
1293 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1295 if (strcmp (sec->name, ".idata\$2") == 0)
1297 if (CONST_STRNEQ (sec->name, ".idata\$"))
1299 reloc_count += sec->reloc_count;
1302 if (is_imp && !idata2 && reloc_count)
1304 /* It is, look for the reference to head and see if it's
1305 from our own library. */
1306 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1314 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1318 if (!bfd_generic_link_read_symbols (is->the_bfd))
1320 einfo (_("%B%F: could not read symbols: %E\n"),
1324 symbols = bfd_get_outsymbols (is->the_bfd);
1326 relocs = xmalloc ((size_t) relsize);
1327 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1332 einfo ("%X%P: unable to process relocs: %E\n");
1336 for (i = 0; i < nrelocs; i++)
1338 struct bfd_symbol *s;
1339 struct bfd_link_hash_entry * blhe;
1340 char *other_bfd_filename;
1343 s = (relocs[i]->sym_ptr_ptr)[0];
1345 if (s->flags & BSF_LOCAL)
1348 /* Thunk section with reloc to another bfd. */
1349 blhe = bfd_link_hash_lookup (link_info.hash,
1351 FALSE, FALSE, TRUE);
1354 || blhe->type != bfd_link_hash_defined)
1358 = blhe->u.def.section->owner->my_archive
1359 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1360 : bfd_get_filename (blhe->u.def.section->owner);
1362 if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1363 other_bfd_filename) == 0)
1366 /* Rename this implib to match the other one. */
1367 n = xmalloc (strlen (other_bfd_filename) + 1);
1368 strcpy (n, other_bfd_filename);
1369 is->the_bfd->my_archive->filename = n;
1373 /* Note - we do not free the symbols,
1374 they are now cached in the BFD. */
1384 lang_input_statement_type *is2;
1385 lang_input_statement_type *is3;
1387 /* Careful - this is a shell script. Watch those dollar signs! */
1388 /* Microsoft import libraries have every member named the same,
1389 and not in the right order for us to link them correctly. We
1390 must detect these and rename the members so that they'll link
1391 correctly. There are three types of objects: the head, the
1392 thunks, and the sentinel(s). The head is easy; it's the one
1393 with idata2. We assume that the sentinels won't have relocs,
1394 and the thunks will. It's easier than checking the symbol
1395 table for external references. */
1396 LANG_FOR_EACH_INPUT_STATEMENT (is)
1398 if (is->the_bfd->my_archive)
1401 bfd *arch = is->the_bfd->my_archive;
1403 if (cur_arch != arch)
1409 is3 && is3->the_bfd->my_archive == arch;
1410 is3 = (lang_input_statement_type *) is3->next)
1412 /* A MS dynamic import library can also contain static
1413 members, so look for the first element with a .dll
1414 extension, and use that for the remainder of the
1416 pnt = strrchr (is3->the_bfd->filename, '.');
1417 if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1425 /* OK, found one. Now look to see if the remaining
1426 (dynamic import) members use the same name. */
1428 is2 && is2->the_bfd->my_archive == arch;
1429 is2 = (lang_input_statement_type *) is2->next)
1431 /* Skip static members, ie anything with a .obj
1433 pnt = strrchr (is2->the_bfd->filename, '.');
1434 if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1437 if (strcmp (is3->the_bfd->filename,
1438 is2->the_bfd->filename))
1447 /* This fragment might have come from an .obj file in a Microsoft
1448 import, and not an actual import record. If this is the case,
1449 then leave the filename alone. */
1450 pnt = strrchr (is->the_bfd->filename, '.');
1452 if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1454 int idata2 = 0, reloc_count=0;
1456 char *new_name, seq;
1458 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1460 if (strcmp (sec->name, ".idata\$2") == 0)
1462 reloc_count += sec->reloc_count;
1465 if (idata2) /* .idata2 is the TOC */
1467 else if (reloc_count > 0) /* thunks */
1472 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1473 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1474 is->the_bfd->filename = new_name;
1476 new_name = xmalloc (strlen (is->filename) + 3);
1477 sprintf (new_name, "%s.%c", is->filename, seq);
1478 is->filename = new_name;
1486 gld_${EMULATION_NAME}_before_allocation (void)
1488 before_allocation_default ();
1492 /* This is called when an input file isn't recognized as a BFD. We
1493 check here for .DEF files and pull them in automatically. */
1496 saw_option (char *option)
1500 for (i = 0; init[i].ptr; i++)
1501 if (strcmp (GET_INIT_SYMBOL_NAME (i), option) == 0)
1502 return init[i].inited;
1505 #endif /* DLL_SUPPORT */
1508 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1511 const char *ext = entry->filename + strlen (entry->filename) - 4;
1513 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1515 pep_def_file = def_file_parse (entry->filename, pep_def_file);
1519 int i, buflen=0, len;
1522 for (i = 0; i < pep_def_file->num_exports; i++)
1524 len = strlen (pep_def_file->exports[i].internal_name);
1525 if (buflen < len + 2)
1529 buf = xmalloc (buflen);
1531 for (i = 0; i < pep_def_file->num_exports; i++)
1533 struct bfd_link_hash_entry *h;
1535 sprintf (buf, "%s%s", U (""),
1536 pep_def_file->exports[i].internal_name);
1538 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1539 if (h == (struct bfd_link_hash_entry *) NULL)
1540 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1541 if (h->type == bfd_link_hash_new)
1543 h->type = bfd_link_hash_undefined;
1544 h->u.undef.abfd = NULL;
1545 bfd_link_add_undef (link_info.hash, h);
1550 /* def_file_print (stdout, pep_def_file); */
1551 if (pep_def_file->is_dll == 1)
1552 link_info.shared = 1;
1554 if (pep_def_file->base_address != (bfd_vma)(-1))
1557 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1558 = init[IMAGEBASEOFF].value
1559 = pep_def_file->base_address;
1560 init[IMAGEBASEOFF].inited = 1;
1561 if (image_base_statement)
1562 image_base_statement->exp = exp_assop ('=', "__image_base__",
1563 exp_intop (pep.ImageBase));
1566 if (pep_def_file->stack_reserve != -1
1567 && ! saw_option ("__size_of_stack_reserve__"))
1569 pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1570 if (pep_def_file->stack_commit != -1)
1571 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1573 if (pep_def_file->heap_reserve != -1
1574 && ! saw_option ("__size_of_heap_reserve__"))
1576 pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1577 if (pep_def_file->heap_commit != -1)
1578 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1588 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1591 #ifdef TARGET_IS_i386pep
1592 pep_dll_id_target ("pei-x86-64");
1594 if (pep_bfd_is_dll (entry->the_bfd))
1595 return pep_implied_import_dll (entry->filename);
1601 gld_${EMULATION_NAME}_finish (void)
1606 if (link_info.shared
1607 || (!link_info.relocatable && pep_def_file->num_exports != 0))
1609 pep_dll_fill_sections (link_info.output_bfd, &link_info);
1610 if (pep_implib_filename)
1611 pep_dll_generate_implib (pep_def_file, pep_implib_filename, &link_info);
1614 if (pep_out_def_filename)
1615 pep_dll_generate_def_file (pep_out_def_filename);
1616 #endif /* DLL_SUPPORT */
1618 /* I don't know where .idata gets set as code, but it shouldn't be. */
1620 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1624 asec->flags &= ~SEC_CODE;
1625 asec->flags |= SEC_DATA;
1631 /* Place an orphan section.
1633 We use this to put sections in a reasonable place in the file, and
1634 to ensure that they are aligned as required.
1636 We handle grouped sections here as well. A section named .foo\$nn
1637 goes into the output section .foo. All grouped sections are sorted
1640 Grouped sections for the default sections are handled by the
1641 default linker script using wildcards, and are sorted by
1644 static lang_output_section_statement_type *
1645 gld_${EMULATION_NAME}_place_orphan (asection *s,
1646 const char *secname,
1649 const char *orig_secname = secname;
1650 char *dollar = NULL;
1651 lang_output_section_statement_type *os;
1652 lang_statement_list_type add_child;
1653 lang_output_section_statement_type *match_by_name = NULL;
1654 lang_statement_union_type **pl;
1656 /* Look through the script to see where to place this section. */
1657 if (!link_info.relocatable
1658 && (dollar = strchr (secname, '\$')) != NULL)
1660 size_t len = dollar - secname;
1661 char *newname = xmalloc (len + 1);
1662 memcpy (newname, secname, len);
1663 newname[len] = '\0';
1667 lang_list_init (&add_child);
1670 if (constraint == 0)
1671 for (os = lang_output_section_find (secname);
1673 os = next_matching_output_section_statement (os, 0))
1675 /* If we don't match an existing output section, tell
1676 lang_insert_orphan to create a new output section. */
1677 constraint = SPECIAL;
1679 if (os->bfd_section != NULL
1680 && (os->bfd_section->flags == 0
1681 || ((s->flags ^ os->bfd_section->flags)
1682 & (SEC_LOAD | SEC_ALLOC)) == 0))
1684 /* We already have an output section statement with this
1685 name, and its bfd section has compatible flags.
1686 If the section already exists but does not have any flags set,
1687 then it has been created by the linker, probably as a result of
1688 a --section-start command line switch. */
1689 lang_add_section (&add_child, s, os);
1693 /* Save unused output sections in case we can match them
1694 against orphans later. */
1695 if (os->bfd_section == NULL)
1699 /* If we didn't match an active output section, see if we matched an
1700 unused one and use that. */
1701 if (os == NULL && match_by_name)
1703 lang_add_section (&match_by_name->children, s, match_by_name);
1704 return match_by_name;
1709 static struct orphan_save hold[] =
1712 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1715 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1718 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1724 enum orphan_save_index
1731 static int orphan_init_done = 0;
1732 struct orphan_save *place;
1733 lang_output_section_statement_type *after;
1734 etree_type *address;
1736 if (!orphan_init_done)
1738 struct orphan_save *ho;
1739 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1740 if (ho->name != NULL)
1742 ho->os = lang_output_section_find (ho->name);
1743 if (ho->os != NULL && ho->os->flags == 0)
1744 ho->os->flags = ho->flags;
1746 orphan_init_done = 1;
1749 /* Try to put the new output section in a reasonable place based
1750 on the section name and section flags. */
1753 if ((s->flags & SEC_ALLOC) == 0)
1755 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1756 place = &hold[orphan_bss];
1757 else if ((s->flags & SEC_READONLY) == 0)
1758 place = &hold[orphan_data];
1759 else if ((s->flags & SEC_CODE) == 0)
1760 place = &hold[orphan_rodata];
1762 place = &hold[orphan_text];
1767 if (place->os == NULL)
1768 place->os = lang_output_section_find (place->name);
1771 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1773 /* *ABS* is always the first output section statement. */
1774 after = (&lang_output_section_statement.head
1775 ->output_section_statement);
1778 /* All sections in an executable must be aligned to a page boundary. */
1779 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1780 os = lang_insert_orphan (s, secname, constraint, after, place, address,
1784 /* If the section name has a '\$', sort it with the other '\$'
1786 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1788 lang_input_section_type *ls;
1791 if ((*pl)->header.type != lang_input_section_enum)
1794 ls = &(*pl)->input_section;
1796 lname = bfd_get_section_name (ls->section->owner, ls->section);
1797 if (strchr (lname, '\$') != NULL
1798 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1802 if (add_child.head != NULL)
1804 *add_child.tail = *pl;
1805 *pl = add_child.head;
1812 gld_${EMULATION_NAME}_open_dynamic_archive
1813 (const char *arch ATTRIBUTE_UNUSED,
1814 search_dirs_type *search,
1815 lang_input_statement_type *entry)
1819 const char * format;
1820 bfd_boolean use_prefix;
1824 /* Preferred explicit import library for dll's. */
1825 { "lib%s.dll.a", FALSE },
1826 /* Alternate explicit import library for dll's. */
1827 { "%s.dll.a", FALSE },
1828 /* "libfoo.a" could be either an import lib or a static lib.
1829 For backwards compatibility, libfoo.a needs to precede
1830 libfoo.dll and foo.dll in the search. */
1831 { "lib%s.a", FALSE },
1832 /* The 'native' spelling of an import lib name is "foo.lib". */
1833 { "%s.lib", FALSE },
1835 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1836 { "%s%s.dll", TRUE },
1838 /* Try "libfoo.dll" (default preferred dll name). */
1839 { "lib%s.dll", FALSE },
1840 /* Finally try 'native' dll name "foo.dll". */
1841 { "%s.dll", FALSE },
1842 /* Note: If adding more formats to this table, make sure to check to
1843 see if their length is longer than libname_fmt[0].format, and if
1844 so, update the call to xmalloc() below. */
1847 static unsigned int format_max_len = 0;
1848 const char * filename;
1854 if (! entry->is_archive)
1857 filename = entry->filename;
1859 if (format_max_len == 0)
1860 /* We need to allow space in the memory that we are going to allocate
1861 for the characters in the format string. Since the format array is
1862 static we only need to calculate this information once. In theory
1863 this value could also be computed statically, but this introduces
1864 the possibility for a discrepancy and hence a possible memory
1865 corruption. The lengths we compute here will be too long because
1866 they will include any formating characters (%s) in the strings, but
1867 this will not matter. */
1868 for (i = 0; libname_fmt[i].format; i++)
1869 if (format_max_len < strlen (libname_fmt[i].format))
1870 format_max_len = strlen (libname_fmt[i].format);
1872 full_string = xmalloc (strlen (search->name)
1876 + (pep_dll_search_prefix
1877 ? strlen (pep_dll_search_prefix) : 0)
1879 /* Allow for the terminating NUL and for the path
1880 separator character that is inserted between
1881 search->name and the start of the format string. */
1884 sprintf (full_string, "%s/", search->name);
1885 base_string = full_string + strlen (full_string);
1887 for (i = 0; libname_fmt[i].format; i++)
1890 if (libname_fmt[i].use_prefix)
1892 if (!pep_dll_search_prefix)
1894 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
1898 sprintf (base_string, libname_fmt[i].format, filename);
1900 if (ldfile_try_open_bfd (full_string, entry))
1904 if (!libname_fmt[i].format)
1910 entry->filename = full_string;
1916 gld_${EMULATION_NAME}_find_potential_libraries
1917 (char *name, lang_input_statement_type *entry)
1919 return ldfile_open_file_search (name, entry, "", ".lib");
1923 gld_${EMULATION_NAME}_get_script (int *isfile)
1925 # Scripts compiled in.
1926 # sed commands to quote an ld script as a C string.
1927 sc="-f stringify.sed"
1933 if (link_info.relocatable && config.build_constructors)
1936 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1937 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1938 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1939 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1940 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1941 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1942 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1943 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
1944 echo ' ; else if (link_info.pei386_auto_import == 1) return' >> e${EMULATION_NAME}.c
1945 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
1947 echo ' ; else return' >> e${EMULATION_NAME}.c
1948 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1949 echo '; }' >> e${EMULATION_NAME}.c
1954 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1956 gld_${EMULATION_NAME}_before_parse,
1959 gld_${EMULATION_NAME}_after_parse,
1960 gld_${EMULATION_NAME}_after_open,
1961 after_allocation_default,
1962 set_output_arch_default,
1963 ldemul_default_target,
1964 gld_${EMULATION_NAME}_before_allocation,
1965 gld_${EMULATION_NAME}_get_script,
1966 "${EMULATION_NAME}",
1968 gld_${EMULATION_NAME}_finish,
1969 NULL, /* Create output section statements. */
1970 gld_${EMULATION_NAME}_open_dynamic_archive,
1971 gld_${EMULATION_NAME}_place_orphan,
1972 gld_${EMULATION_NAME}_set_symbols,
1973 NULL, /* parse_args */
1974 gld${EMULATION_NAME}_add_options,
1975 gld${EMULATION_NAME}_handle_option,
1976 gld_${EMULATION_NAME}_unrecognized_file,
1977 gld_${EMULATION_NAME}_list_options,
1978 gld_${EMULATION_NAME}_recognized_file,
1979 gld_${EMULATION_NAME}_find_potential_libraries,
1980 NULL /* new_vers_pattern. */