1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 test -z "${ENTRY}" && ENTRY="_mainCRTStartup"
4 if [ -z "$MACHINE" ]; then
7 OUTPUT_ARCH=${ARCH}:${MACHINE}
9 rm -f e${EMULATION_NAME}.c
10 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
12 /* Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
13 Written by Kai Tietz, OneVision Software GmbH&CoKg.
15 This file is part of the GNU Binutils.
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 3 of the License, or
20 (at your option) any later version.
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
30 MA 02110-1301, USA. */
33 /* For WINDOWS_XP64 and higher */
34 /* Based on pe.em, but modified for 64 bit support. */
36 #define TARGET_IS_${EMULATION_NAME}
38 #define COFF_IMAGE_WITH_PE
40 #define COFF_WITH_pex64
46 #include "libiberty.h"
57 #include "coff/internal.h"
59 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
60 header in generic PE code. */
61 #include "coff/x86_64.h"
64 /* FIXME: This is a BFD internal header file, and we should not be
66 #include "../bfd/libcoff.h"
69 #define AOUTSZ PEPAOUTSZ
70 #define PEAOUTHDR PEPAOUTHDR
74 #include "safe-ctype.h"
76 /* Permit the emulation parameters to override the default section
77 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
78 it seem that include/coff/internal.h should not define
79 PE_DEF_SECTION_ALIGNMENT. */
80 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
81 #undef PE_DEF_SECTION_ALIGNMENT
82 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
85 #ifdef TARGET_IS_i386pep
89 #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
90 #define PE_DEF_SUBSYSTEM 3
92 #undef NT_EXE_IMAGE_BASE
93 #define NT_EXE_IMAGE_BASE 0x00010000
94 #undef PE_DEF_SECTION_ALIGNMENT
95 #define PE_DEF_SUBSYSTEM 2
96 #undef PE_DEF_FILE_ALIGNMENT
97 #define PE_DEF_FILE_ALIGNMENT 0x00000200
98 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
102 static struct internal_extra_pe_aouthdr pep;
104 static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
105 static int support_old_code = 0;
106 static lang_assignment_statement_type *image_base_statement = 0;
107 static unsigned short pe_dll_characteristics = 0;
110 static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
111 static char * pep_out_def_filename = NULL;
112 static char * pep_implib_filename = NULL;
113 static int pep_enable_auto_image_base = 0;
114 static char * pep_dll_search_prefix = NULL;
117 extern const char *output_filename;
120 gld_${EMULATION_NAME}_before_parse (void)
122 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
123 output_filename = "${EXECUTABLE_NAME:-a.exe}";
125 config.dynamic_link = TRUE;
126 config.has_shared = 1;
127 link_info.pei386_auto_import = -1;
128 link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */
130 #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
131 lang_default_entry ("_WinMainCRTStartup");
133 lang_default_entry ("${ENTRY}");
138 /* PE format extra command line options. */
140 /* Used for setting flags in the PE header. */
143 OPTION_BASE_FILE = 300 + 1,
145 OPTION_FILE_ALIGNMENT,
147 OPTION_MAJOR_IMAGE_VERSION,
148 OPTION_MAJOR_OS_VERSION,
149 OPTION_MAJOR_SUBSYSTEM_VERSION,
150 OPTION_MINOR_IMAGE_VERSION,
151 OPTION_MINOR_OS_VERSION,
152 OPTION_MINOR_SUBSYSTEM_VERSION,
153 OPTION_SECTION_ALIGNMENT,
157 OPTION_SUPPORT_OLD_CODE,
160 OPTION_EXCLUDE_SYMBOLS,
161 OPTION_EXCLUDE_ALL_SYMBOLS,
163 OPTION_STDCALL_ALIASES,
164 OPTION_ENABLE_STDCALL_FIXUP,
165 OPTION_DISABLE_STDCALL_FIXUP,
166 OPTION_IMPLIB_FILENAME,
167 OPTION_WARN_DUPLICATE_EXPORTS,
169 OPTION_ENABLE_AUTO_IMAGE_BASE,
170 OPTION_DISABLE_AUTO_IMAGE_BASE,
171 OPTION_DLL_SEARCH_PREFIX,
172 OPTION_NO_DEFAULT_EXCLUDES,
173 OPTION_DLL_ENABLE_AUTO_IMPORT,
174 OPTION_DLL_DISABLE_AUTO_IMPORT,
175 OPTION_ENABLE_EXTRA_PE_DEBUG,
177 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
178 OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
179 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1,
180 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
181 OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
182 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES,
183 OPTION_ENABLE_LONG_SECTION_NAMES,
184 OPTION_DISABLE_LONG_SECTION_NAMES,
186 OPTION_FORCE_INTEGRITY,
192 OPTION_TERMINAL_SERVER_AWARE
196 gld${EMULATION_NAME}_add_options
197 (int ns ATTRIBUTE_UNUSED,
198 char **shortopts ATTRIBUTE_UNUSED,
200 struct option **longopts,
201 int nrl ATTRIBUTE_UNUSED,
202 struct option **really_longopts ATTRIBUTE_UNUSED)
204 static const struct option xtra_long[] =
207 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
208 {"dll", no_argument, NULL, OPTION_DLL},
209 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
210 {"heap", required_argument, NULL, OPTION_HEAP},
211 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
212 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
213 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
214 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
215 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
216 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
217 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
218 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
219 {"stack", required_argument, NULL, OPTION_STACK},
220 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
221 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
222 {"use-nul-prefixed-import-tables", no_argument, NULL,
223 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
225 /* getopt allows abbreviations, so we do this to stop it
226 from treating -o as an abbreviation for this option. */
227 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
228 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
229 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
230 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
231 {"exclude-all-symbols", no_argument, NULL, OPTION_EXCLUDE_ALL_SYMBOLS},
232 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
233 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
234 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
235 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
236 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
237 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
238 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
239 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
240 /* getopt() allows abbreviations, so we do this to stop it from
241 treating -c as an abbreviation for these --compat-implib. */
242 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
243 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
244 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
245 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
246 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
247 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
248 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
249 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
250 {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
251 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
252 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
253 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
254 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
256 {"enable-long-section-names", no_argument, NULL, OPTION_ENABLE_LONG_SECTION_NAMES},
257 {"disable-long-section-names", no_argument, NULL, OPTION_DISABLE_LONG_SECTION_NAMES},
258 {"dynamicbase",no_argument, NULL, OPTION_DYNAMIC_BASE},
259 {"forceinteg", no_argument, NULL, OPTION_FORCE_INTEGRITY},
260 {"nxcompat", no_argument, NULL, OPTION_NX_COMPAT},
261 {"no-isolation", no_argument, NULL, OPTION_NO_ISOLATION},
262 {"no-seh", no_argument, NULL, OPTION_NO_SEH},
263 {"no-bind", no_argument, NULL, OPTION_NO_BIND},
264 {"wdmdriver", no_argument, NULL, OPTION_WDM_DRIVER},
265 {"tsaware", no_argument, NULL, OPTION_TERMINAL_SERVER_AWARE},
266 {NULL, no_argument, NULL, 0}
270 = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
271 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
274 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
275 parameters which may be input from the command line. */
286 #define D(field,symbol,def) {&pep.field,sizeof(pep.field), def, symbol,0}
288 static definfo init[] =
290 /* imagebase must be first */
291 #define IMAGEBASEOFF 0
292 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
294 {&dll, sizeof(dll), 0, "__dll__", 0},
295 #define MSIMAGEBASEOFF 2
296 D(ImageBase,"___ImageBase", NT_EXE_IMAGE_BASE),
297 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
298 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
299 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
300 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
301 D(MajorImageVersion,"__major_image_version__", 0),
302 D(MinorImageVersion,"__minor_image_version__", 0),
303 D(MajorSubsystemVersion,"__major_subsystem_version__", 5),
304 D(MinorSubsystemVersion,"__minor_subsystem_version__", 2),
305 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
306 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
307 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
308 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
309 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
310 D(LoaderFlags,"__loader_flags__", 0x0),
311 D(DllCharacteristics, "__dll_characteristics__", 0x0),
312 { NULL, 0, 0, NULL, 0 }
317 gld_${EMULATION_NAME}_list_options (FILE *file)
319 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
320 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
321 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
322 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
323 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
324 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
325 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
326 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
327 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
328 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
329 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
330 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
331 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
332 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
333 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
335 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
336 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
337 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
338 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
339 fprintf (file, _(" --exclude-all-symbols Exclude all symbols from automatic export\n"));
340 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
341 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
342 fprintf (file, _(" Exclude objects, archive members from auto\n"));
343 fprintf (file, _(" export, place into import library instead.\n"));
344 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
345 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
346 fprintf (file, _(" --out-implib <file> Generate import library\n"));
347 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
348 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
349 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
350 create __imp_<SYMBOL> as well.\n"));
351 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
352 unless user specifies one\n"));
353 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
354 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
355 an importlib, use <string><basename>.dll\n\
356 in preference to lib<basename>.dll \n"));
357 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\
358 __imp_sym for DATA references\n"));
359 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
360 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
361 adding pseudo-relocations resolved at\n\
363 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
364 auto-imported DATA.\n"));
365 fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\
366 or linking to DLLs (esp. auto-import)\n"));
367 fprintf (file, _(" --enable-long-section-names Use long COFF section names even in\n\
368 executable image files\n"));
369 fprintf (file, _(" --disable-long-section-names Never use long COFF section names, even\n\
370 in object files\n"));
371 fprintf (file, _(" --dynamicbase Image base address may be relocated using\n\
372 address space layout randomization (ASLR)\n"));
373 fprintf (file, _(" --forceinteg Code integrity checks are enforced\n"));
374 fprintf (file, _(" --nxcompat Image is compatible with data execution prevention\n"));
375 fprintf (file, _(" --no-isolation Image understands isolation but do not isolate the image\n"));
376 fprintf (file, _(" --no-seh Image does not use SEH. No SE handler may\n\
377 be called in this image\n"));
378 fprintf (file, _(" --no-bind Do not bind this image\n"));
379 fprintf (file, _(" --wdmdriver Driver uses the WDM model\n"));
380 fprintf (file, _(" --tsaware Image is Terminal Server aware\n"));
386 set_pep_name (char *name, bfd_vma val)
390 /* Find the name and set it. */
391 for (i = 0; init[i].ptr; i++)
393 if (strcmp (name, init[i].symbol) == 0)
397 if (strcmp (name,"__image_base__") == 0)
398 set_pep_name ("___ImageBase", val);
407 set_pep_subsystem (void)
411 const char *initial_symbol_char;
416 unsigned long temp_subsystem;
425 { "native", 1, "NtProcessStartup" },
426 { "windows", 2, "WinMainCRTStartup" },
427 { "console", 3, "mainCRTStartup" },
428 { "posix", 7, "__PosixProcessStartup"},
429 { "wince", 9, "_WinMainCRTStartup" },
430 { "xbox", 14, "mainCRTStartup" },
433 /* Entry point name for arbitrary subsystem numbers. */
434 static const char default_entry[] = "mainCRTStartup";
436 /* Check for the presence of a version number. */
437 sver = strchr (optarg, ':');
439 len = strlen (optarg);
443 set_pep_name ("__major_subsystem_version__",
444 strtoul (sver + 1, &end, 0));
446 set_pep_name ("__minor_subsystem_version__",
447 strtoul (end + 1, &end, 0));
449 einfo (_("%P: warning: bad version number in -subsystem option\n"));
452 /* Check for numeric subsystem. */
453 temp_subsystem = strtoul (optarg, & end, 0);
454 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
456 /* Search list for a numeric match to use its entry point. */
457 for (i = 0; v[i].name; i++)
458 if (v[i].value == (int) temp_subsystem)
461 /* If no match, use the default. */
462 if (v[i].name != NULL)
465 entry = default_entry;
467 /* Use this subsystem. */
468 subsystem = (int) temp_subsystem;
472 /* Search for subsystem by name. */
473 for (i = 0; v[i].name; i++)
474 if (strncmp (optarg, v[i].name, len) == 0
475 && v[i].name[len] == '\0')
478 if (v[i].name == NULL)
480 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
485 subsystem = v[i].value;
488 set_pep_name ("__subsystem__", subsystem);
490 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
491 if (*initial_symbol_char != '\0')
495 /* lang_default_entry expects its argument to be permanently
496 allocated, so we don't free this string. */
497 alc_entry = xmalloc (strlen (initial_symbol_char)
500 strcpy (alc_entry, initial_symbol_char);
501 strcat (alc_entry, entry);
505 lang_default_entry (entry);
512 set_pep_value (char *name)
516 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));
519 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
526 set_pep_stack_heap (char *resname, char *comname)
528 set_pep_value (resname);
533 set_pep_value (comname);
536 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
541 gld${EMULATION_NAME}_handle_option (int optc)
548 case OPTION_BASE_FILE:
549 link_info.base_file = fopen (optarg, FOPEN_WB);
550 if (link_info.base_file == NULL)
552 /* xgettext:c-format */
553 fprintf (stderr, _("%s: Can't open base file %s\n"),
554 program_name, optarg);
561 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
564 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
566 case OPTION_SUBSYSTEM:
567 set_pep_subsystem ();
569 case OPTION_MAJOR_OS_VERSION:
570 set_pep_value ("__major_os_version__");
572 case OPTION_MINOR_OS_VERSION:
573 set_pep_value ("__minor_os_version__");
575 case OPTION_MAJOR_SUBSYSTEM_VERSION:
576 set_pep_value ("__major_subsystem_version__");
578 case OPTION_MINOR_SUBSYSTEM_VERSION:
579 set_pep_value ("__minor_subsystem_version__");
581 case OPTION_MAJOR_IMAGE_VERSION:
582 set_pep_value ("__major_image_version__");
584 case OPTION_MINOR_IMAGE_VERSION:
585 set_pep_value ("__minor_image_version__");
587 case OPTION_FILE_ALIGNMENT:
588 set_pep_value ("__file_alignment__");
590 case OPTION_SECTION_ALIGNMENT:
591 set_pep_value ("__section_alignment__");
594 set_pep_name ("__dll__", 1);
596 case OPTION_IMAGE_BASE:
597 set_pep_value ("__image_base__");
599 case OPTION_SUPPORT_OLD_CODE:
600 support_old_code = 1;
602 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
603 pep_use_nul_prefixed_import_tables = TRUE;
607 pep_out_def_filename = xstrdup (optarg);
609 case OPTION_EXPORT_ALL:
610 pep_dll_export_everything = 1;
612 case OPTION_EXCLUDE_SYMBOLS:
613 pep_dll_add_excludes (optarg, EXCLUDESYMS);
615 case OPTION_EXCLUDE_ALL_SYMBOLS:
616 pep_dll_exclude_all_symbols = 1;
618 case OPTION_EXCLUDE_LIBS:
619 pep_dll_add_excludes (optarg, EXCLUDELIBS);
621 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
622 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
624 case OPTION_KILL_ATS:
625 pep_dll_kill_ats = 1;
627 case OPTION_STDCALL_ALIASES:
628 pep_dll_stdcall_aliases = 1;
630 case OPTION_ENABLE_STDCALL_FIXUP:
631 pep_enable_stdcall_fixup = 1;
633 case OPTION_DISABLE_STDCALL_FIXUP:
634 pep_enable_stdcall_fixup = 0;
636 case OPTION_IMPLIB_FILENAME:
637 pep_implib_filename = xstrdup (optarg);
639 case OPTION_WARN_DUPLICATE_EXPORTS:
640 pep_dll_warn_dup_exports = 1;
642 case OPTION_IMP_COMPAT:
643 pep_dll_compat_implib = 1;
645 case OPTION_ENABLE_AUTO_IMAGE_BASE:
646 pep_enable_auto_image_base = 1;
648 case OPTION_DISABLE_AUTO_IMAGE_BASE:
649 pep_enable_auto_image_base = 0;
651 case OPTION_DLL_SEARCH_PREFIX:
652 pep_dll_search_prefix = xstrdup (optarg);
654 case OPTION_NO_DEFAULT_EXCLUDES:
655 pep_dll_do_default_excludes = 0;
657 case OPTION_DLL_ENABLE_AUTO_IMPORT:
658 link_info.pei386_auto_import = 1;
660 case OPTION_DLL_DISABLE_AUTO_IMPORT:
661 link_info.pei386_auto_import = 0;
663 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
664 link_info.pei386_runtime_pseudo_reloc = 2;
666 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
667 link_info.pei386_runtime_pseudo_reloc = 0;
669 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
670 link_info.pei386_runtime_pseudo_reloc = 1;
672 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
673 link_info.pei386_runtime_pseudo_reloc = 2;
675 case OPTION_ENABLE_EXTRA_PE_DEBUG:
676 pep_dll_extra_pe_debug = 1;
679 case OPTION_ENABLE_LONG_SECTION_NAMES:
680 pep_use_coff_long_section_names = 1;
682 case OPTION_DISABLE_LONG_SECTION_NAMES:
683 pep_use_coff_long_section_names = 0;
685 /* Get DLLCharacteristics bits */
686 case OPTION_DYNAMIC_BASE:
687 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE;
689 case OPTION_FORCE_INTEGRITY:
690 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY;
692 case OPTION_NX_COMPAT:
693 pe_dll_characteristics |= IMAGE_DLL_CHARACTERISTICS_NX_COMPAT;
695 case OPTION_NO_ISOLATION:
696 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_ISOLATION;
699 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_SEH;
702 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_NO_BIND;
704 case OPTION_WDM_DRIVER:
705 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_WDM_DRIVER;
707 case OPTION_TERMINAL_SERVER_AWARE:
708 pe_dll_characteristics |= IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE;
712 /* Set DLLCharacteristics bits */
713 set_pep_name ("__dll_characteristics__", pe_dll_characteristics);
721 strhash (const char *str)
723 const unsigned char *s;
730 s = (const unsigned char *) str;
731 while ((c = *s++) != '\0')
733 hash += c + (c << 17);
737 hash += len + (len << 17);
743 /* Use the output file to create a image base for relocatable DLLs. */
746 compute_dll_image_base (const char *ofile)
748 bfd_vma hash = (bfd_vma) strhash (ofile);
749 return 0x61300000 + ((hash << 16) & 0x0FFC0000);
753 /* Assign values to the special symbols before the linker script is
757 gld_${EMULATION_NAME}_set_symbols (void)
759 /* Run through and invent symbols for all the
760 names and insert the defaults. */
763 if (!init[IMAGEBASEOFF].inited)
765 if (link_info.relocatable)
766 init[IMAGEBASEOFF].value = 0;
767 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
770 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base
771 ? compute_dll_image_base (output_filename)
772 : NT_DLL_IMAGE_BASE);
774 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
778 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
779 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
782 /* Don't do any symbol assignments if this is a relocatable link. */
783 if (link_info.relocatable)
786 /* Glue the assignments into the abs section. */
787 push_stat_ptr (&abs_output_section->children);
789 for (j = 0; init[j].ptr; j++)
791 bfd_vma val = init[j].value;
792 lang_assignment_statement_type *rv;
793 rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
795 if (init[j].size == sizeof (short))
796 *(short *) init[j].ptr = (short) val;
797 else if (init[j].size == sizeof (int))
798 *(int *) init[j].ptr = (int) val;
799 else if (init[j].size == sizeof (long))
800 *(long *) init[j].ptr = (long) val;
801 /* This might be a long long or other special type. */
802 else if (init[j].size == sizeof (bfd_vma))
803 *(bfd_vma *) init[j].ptr = val;
805 if (j == IMAGEBASEOFF)
806 image_base_statement = rv;
808 /* Restore the pointer. */
811 if (pep.FileAlignment > pep.SectionAlignment)
813 einfo (_("%P: warning, file alignment > section alignment.\n"));
817 /* This is called after the linker script and the command line options
821 gld_${EMULATION_NAME}_after_parse (void)
823 /* PR ld/6744: Warn the user if they have used an ELF-only
824 option hoping it will work on PE+. */
825 if (link_info.export_dynamic)
826 einfo (_("%P: warning: --export-dynamic is not supported for PE+ "
827 "targets, did you mean --export-all-symbols?\n"));
829 after_parse_default ();
832 /* pep-dll.c directly accesses pep_data_import_dll,
833 so it must be defined outside of #ifdef DLL_SUPPORT.
834 Note - this variable is deliberately not initialised.
835 This allows it to be treated as a common varaible, and only
836 exist in one incarnation in a multiple target enabled linker. */
837 char * pep_data_import_dll;
840 static struct bfd_link_hash_entry *pep_undef_found_sym;
843 pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
848 sl = strlen (string);
849 if (h->type == bfd_link_hash_defined
850 && strncmp (h->root.string, string, sl) == 0
851 && h->root.string[sl] == '@')
853 pep_undef_found_sym = h;
860 pep_fixup_stdcalls (void)
862 static int gave_warning_message = 0;
863 struct bfd_link_hash_entry *undef, *sym;
865 if (pep_dll_extra_pe_debug)
866 printf ("%s\n", __FUNCTION__);
868 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
869 if (undef->type == bfd_link_hash_undefined)
871 char* at = strchr (undef->root.string, '@');
872 int lead_at = (*undef->root.string == '@');
873 /* For now, don't try to fixup fastcall symbols. */
877 /* The symbol is a stdcall symbol, so let's look for a
878 cdecl symbol with the same name and resolve to that. */
879 char *cname = xstrdup (undef->root.string /* + lead_at */);
880 at = strchr (cname, '@');
882 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
884 if (sym && sym->type == bfd_link_hash_defined)
886 undef->type = bfd_link_hash_defined;
887 undef->u.def.value = sym->u.def.value;
888 undef->u.def.section = sym->u.def.section;
890 if (pep_enable_stdcall_fixup == -1)
892 einfo (_("Warning: resolving %s by linking to %s\n"),
893 undef->root.string, cname);
894 if (! gave_warning_message)
896 gave_warning_message = 1;
897 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
898 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
905 /* The symbol is a cdecl symbol, so we look for stdcall
906 symbols - which means scanning the whole symbol table. */
907 pep_undef_found_sym = 0;
908 bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
909 (char *) undef->root.string);
910 sym = pep_undef_found_sym;
913 undef->type = bfd_link_hash_defined;
914 undef->u.def.value = sym->u.def.value;
915 undef->u.def.section = sym->u.def.section;
917 if (pep_enable_stdcall_fixup == -1)
919 einfo (_("Warning: resolving %s by linking to %s\n"),
920 undef->root.string, sym->root.string);
921 if (! gave_warning_message)
923 gave_warning_message = 1;
924 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
925 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
934 make_import_fixup (arelent *rel, asection *s)
936 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
941 if (pep_dll_extra_pe_debug)
942 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
943 (unsigned long) rel->address, (long) rel->addend);
945 memset (addend, 0, sizeof (addend));
946 switch ((rel->howto->bitsize))
949 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
950 if (suc && rel->howto->pc_relative)
951 _addend = (bfd_vma) ((bfd_signed_vma) ((char) bfd_get_8 (s->owner, addend)));
953 _addend = ((bfd_vma) bfd_get_8 (s->owner, addend)) & 0xff;
956 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
957 if (suc && rel->howto->pc_relative)
958 _addend = (bfd_vma) ((bfd_signed_vma) ((short) bfd_get_16 (s->owner, addend)));
960 _addend = ((bfd_vma) bfd_get_16 (s->owner, addend)) & 0xffff;
963 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
964 if (suc && rel->howto->pc_relative)
965 _addend = (bfd_vma) ((bfd_signed_vma) ((int) bfd_get_32 (s->owner, addend)));
967 _addend = ((bfd_vma) bfd_get_32 (s->owner, addend)) & 0xffffffff;
970 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
972 _addend = ((bfd_vma) bfd_get_64 (s->owner, addend));
976 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
977 s->owner, s, rel->address);
979 if (pep_dll_extra_pe_debug)
981 printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", (long) _addend, (long) rel->addend, (long) rel->address);
982 if (rel->howto->pc_relative) printf (" pcrel");
983 printf (" %d bit rel.\n",(int) rel->howto->bitsize);
985 pep_create_import_fixup (rel, s, _addend);
991 pep_find_data_imports (void)
993 struct bfd_link_hash_entry *undef, *sym;
995 if (link_info.pei386_auto_import == 0)
998 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
1000 if (undef->type == bfd_link_hash_undefined)
1002 /* C++ symbols are *long*. */
1005 if (pep_dll_extra_pe_debug)
1006 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
1008 sprintf (buf, "__imp_%s", undef->root.string);
1010 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
1012 if (sym && sym->type == bfd_link_hash_defined)
1014 bfd *b = sym->u.def.section->owner;
1018 if (link_info.pei386_auto_import == -1)
1020 static bfd_boolean warned = FALSE;
1022 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
1023 undef->root.string, buf);
1025 /* PR linker/4844. */
1029 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
1030 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
1034 if (!bfd_generic_link_read_symbols (b))
1036 einfo (_("%B%F: could not read symbols: %E\n"), b);
1040 symbols = bfd_get_outsymbols (b);
1041 nsyms = bfd_get_symcount (b);
1043 for (i = 0; i < nsyms; i++)
1045 if (! CONST_STRNEQ (symbols[i]->name, "__head_"))
1048 if (pep_dll_extra_pe_debug)
1049 printf ("->%s\n", symbols[i]->name);
1051 pep_data_import_dll = (char*) (symbols[i]->name +
1052 sizeof ("__head_") - 1);
1056 pep_walk_relocs_of_symbol (&link_info, undef->root.string,
1059 /* Let's differentiate it somehow from defined. */
1060 undef->type = bfd_link_hash_defweak;
1061 /* We replace original name with __imp_ prefixed, this
1062 1) may trash memory 2) leads to duplicate symbol generation.
1063 Still, IMHO it's better than having name poluted. */
1064 undef->root.string = sym->root.string;
1065 undef->u.def.value = sym->u.def.value;
1066 undef->u.def.section = sym->u.def.section;
1073 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1075 if (pep_dll_extra_pe_debug)
1076 printf ("+%s\n", h->string);
1080 #endif /* DLL_SUPPORT */
1083 debug_section_p (bfd *abfd ATTRIBUTE_UNUSED, asection *sect, void *obj)
1085 int *found = (int *) obj;
1086 if (strncmp (".debug_", sect->name, sizeof (".debug_") - 1) == 0)
1091 gld_${EMULATION_NAME}_after_open (void)
1094 if (pep_dll_extra_pe_debug)
1097 struct bfd_link_hash_entry *sym;
1099 printf ("%s()\n", __FUNCTION__);
1101 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1102 printf ("-%s\n", sym->root.string);
1103 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1105 for (a = link_info.input_bfds; a; a = a->link_next)
1106 printf ("*%s\n",a->filename);
1110 /* Pass the wacky PE command line options into the output bfd.
1111 FIXME: This should be done via a function, rather than by
1112 including an internal BFD header. */
1114 if (coff_data (link_info.output_bfd) == NULL
1115 || coff_data (link_info.output_bfd)->pe == 0)
1116 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1117 link_info.output_bfd);
1119 pe_data (link_info.output_bfd)->pe_opthdr = pep;
1120 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1121 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1123 /* At this point we must decide whether to use long section names
1124 in the output or not. If the user hasn't explicitly specified
1125 on the command line, we leave it to the default for the format
1126 (object files yes, image files no), except if there is debug
1127 information present; GDB relies on the long section names to
1128 find it, so enable it in that case. */
1129 if (pep_use_coff_long_section_names < 0 && link_info.strip == strip_none)
1131 /* Iterate over all sections of all input BFDs, checking
1132 for any that begin 'debug_' and are long names. */
1133 LANG_FOR_EACH_INPUT_STATEMENT (is)
1135 int found_debug = 0;
1136 bfd_map_over_sections (is->the_bfd, debug_section_p, &found_debug);
1139 pep_use_coff_long_section_names = 1;
1145 pep_output_file_set_long_section_names (link_info.output_bfd);
1148 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1149 pep_fixup_stdcalls ();
1151 pep_process_import_defs (link_info.output_bfd, &link_info);
1153 pep_find_data_imports ();
1155 #ifndef TARGET_IS_i386pep
1156 if (link_info.shared)
1158 if (!link_info.relocatable)
1160 pep_dll_build_sections (link_info.output_bfd, &link_info);
1162 #ifndef TARGET_IS_i386pep
1164 pep_exe_build_sections (link_info.output_bfd, &link_info);
1166 #endif /* DLL_SUPPORT */
1169 /* This next chunk of code tries to detect the case where you have
1170 two import libraries for the same DLL (specifically,
1171 symbolically linking libm.a and libc.a in cygwin to
1172 libcygwin.a). In those cases, it's possible for function
1173 thunks from the second implib to be used but without the
1174 head/tail objects, causing an improper import table. We detect
1175 those cases and rename the "other" import libraries to match
1176 the one the head/tail come from, so that the linker will sort
1177 things nicely and produce a valid import table. */
1179 LANG_FOR_EACH_INPUT_STATEMENT (is)
1181 if (is->the_bfd->my_archive)
1183 int idata2 = 0, reloc_count=0, is_imp = 0;
1186 /* See if this is an import library thunk. */
1187 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1189 if (strcmp (sec->name, ".idata\$2") == 0)
1191 if (CONST_STRNEQ (sec->name, ".idata\$"))
1193 reloc_count += sec->reloc_count;
1196 if (is_imp && !idata2 && reloc_count)
1198 /* It is, look for the reference to head and see if it's
1199 from our own library. */
1200 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1208 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1212 if (!bfd_generic_link_read_symbols (is->the_bfd))
1214 einfo (_("%B%F: could not read symbols: %E\n"),
1218 symbols = bfd_get_outsymbols (is->the_bfd);
1220 relocs = xmalloc ((size_t) relsize);
1221 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1226 einfo ("%X%P: unable to process relocs: %E\n");
1230 for (i = 0; i < nrelocs; i++)
1232 struct bfd_symbol *s;
1233 struct bfd_link_hash_entry * blhe;
1234 char *other_bfd_filename;
1237 s = (relocs[i]->sym_ptr_ptr)[0];
1239 if (s->flags & BSF_LOCAL)
1242 /* Thunk section with reloc to another bfd. */
1243 blhe = bfd_link_hash_lookup (link_info.hash,
1245 FALSE, FALSE, TRUE);
1248 || blhe->type != bfd_link_hash_defined)
1252 = blhe->u.def.section->owner->my_archive
1253 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1254 : bfd_get_filename (blhe->u.def.section->owner);
1256 if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1257 other_bfd_filename) == 0)
1260 /* Rename this implib to match the other one. */
1261 n = xmalloc (strlen (other_bfd_filename) + 1);
1262 strcpy (n, other_bfd_filename);
1263 is->the_bfd->my_archive->filename = n;
1267 /* Note - we do not free the symbols,
1268 they are now cached in the BFD. */
1278 lang_input_statement_type *is2;
1279 lang_input_statement_type *is3;
1281 /* Careful - this is a shell script. Watch those dollar signs! */
1282 /* Microsoft import libraries have every member named the same,
1283 and not in the right order for us to link them correctly. We
1284 must detect these and rename the members so that they'll link
1285 correctly. There are three types of objects: the head, the
1286 thunks, and the sentinel(s). The head is easy; it's the one
1287 with idata2. We assume that the sentinels won't have relocs,
1288 and the thunks will. It's easier than checking the symbol
1289 table for external references. */
1290 LANG_FOR_EACH_INPUT_STATEMENT (is)
1292 if (is->the_bfd->my_archive)
1295 bfd *arch = is->the_bfd->my_archive;
1297 if (cur_arch != arch)
1303 is3 && is3->the_bfd->my_archive == arch;
1304 is3 = (lang_input_statement_type *) is3->next)
1306 /* A MS dynamic import library can also contain static
1307 members, so look for the first element with a .dll
1308 extension, and use that for the remainder of the
1310 pnt = strrchr (is3->the_bfd->filename, '.');
1311 if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1319 /* OK, found one. Now look to see if the remaining
1320 (dynamic import) members use the same name. */
1322 is2 && is2->the_bfd->my_archive == arch;
1323 is2 = (lang_input_statement_type *) is2->next)
1325 /* Skip static members, ie anything with a .obj
1327 pnt = strrchr (is2->the_bfd->filename, '.');
1328 if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1331 if (strcmp (is3->the_bfd->filename,
1332 is2->the_bfd->filename))
1341 /* This fragment might have come from an .obj file in a Microsoft
1342 import, and not an actual import record. If this is the case,
1343 then leave the filename alone. */
1344 pnt = strrchr (is->the_bfd->filename, '.');
1346 if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1348 int idata2 = 0, reloc_count=0;
1350 char *new_name, seq;
1352 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1354 if (strcmp (sec->name, ".idata\$2") == 0)
1356 reloc_count += sec->reloc_count;
1359 if (idata2) /* .idata2 is the TOC */
1361 else if (reloc_count > 0) /* thunks */
1366 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1367 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1368 is->the_bfd->filename = new_name;
1370 new_name = xmalloc (strlen (is->filename) + 3);
1371 sprintf (new_name, "%s.%c", is->filename, seq);
1372 is->filename = new_name;
1380 gld_${EMULATION_NAME}_before_allocation (void)
1382 before_allocation_default ();
1386 /* This is called when an input file isn't recognized as a BFD. We
1387 check here for .DEF files and pull them in automatically. */
1390 saw_option (char *option)
1394 for (i = 0; init[i].ptr; i++)
1395 if (strcmp (init[i].symbol, option) == 0)
1396 return init[i].inited;
1399 #endif /* DLL_SUPPORT */
1402 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1405 const char *ext = entry->filename + strlen (entry->filename) - 4;
1407 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1409 pep_def_file = def_file_parse (entry->filename, pep_def_file);
1413 int i, buflen=0, len;
1416 for (i = 0; i < pep_def_file->num_exports; i++)
1418 len = strlen (pep_def_file->exports[i].internal_name);
1419 if (buflen < len + 2)
1423 buf = xmalloc (buflen);
1425 for (i = 0; i < pep_def_file->num_exports; i++)
1427 struct bfd_link_hash_entry *h;
1429 sprintf (buf, "_%s", pep_def_file->exports[i].internal_name);
1431 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1432 if (h == (struct bfd_link_hash_entry *) NULL)
1433 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1434 if (h->type == bfd_link_hash_new)
1436 h->type = bfd_link_hash_undefined;
1437 h->u.undef.abfd = NULL;
1438 bfd_link_add_undef (link_info.hash, h);
1443 /* def_file_print (stdout, pep_def_file); */
1444 if (pep_def_file->is_dll == 1)
1445 link_info.shared = 1;
1447 if (pep_def_file->base_address != (bfd_vma)(-1))
1450 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1451 = init[IMAGEBASEOFF].value
1452 = pep_def_file->base_address;
1453 init[IMAGEBASEOFF].inited = 1;
1454 if (image_base_statement)
1455 image_base_statement->exp = exp_assop ('=', "__image_base__",
1456 exp_intop (pep.ImageBase));
1459 if (pep_def_file->stack_reserve != -1
1460 && ! saw_option ("__size_of_stack_reserve__"))
1462 pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1463 if (pep_def_file->stack_commit != -1)
1464 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1466 if (pep_def_file->heap_reserve != -1
1467 && ! saw_option ("__size_of_heap_reserve__"))
1469 pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1470 if (pep_def_file->heap_commit != -1)
1471 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1481 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1484 #ifdef TARGET_IS_i386pep
1485 pep_dll_id_target ("pei-x86-64");
1487 if (pep_bfd_is_dll (entry->the_bfd))
1488 return pep_implied_import_dll (entry->filename);
1494 gld_${EMULATION_NAME}_finish (void)
1499 if (link_info.shared
1500 || (!link_info.relocatable && pep_def_file->num_exports != 0))
1502 pep_dll_fill_sections (link_info.output_bfd, &link_info);
1503 if (pep_implib_filename)
1504 pep_dll_generate_implib (pep_def_file, pep_implib_filename, &link_info);
1507 if (pep_out_def_filename)
1508 pep_dll_generate_def_file (pep_out_def_filename);
1509 #endif /* DLL_SUPPORT */
1511 /* I don't know where .idata gets set as code, but it shouldn't be. */
1513 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1517 asec->flags &= ~SEC_CODE;
1518 asec->flags |= SEC_DATA;
1524 /* Place an orphan section.
1526 We use this to put sections in a reasonable place in the file, and
1527 to ensure that they are aligned as required.
1529 We handle grouped sections here as well. A section named .foo\$nn
1530 goes into the output section .foo. All grouped sections are sorted
1533 Grouped sections for the default sections are handled by the
1534 default linker script using wildcards, and are sorted by
1537 static lang_output_section_statement_type *
1538 gld_${EMULATION_NAME}_place_orphan (asection *s,
1539 const char *secname,
1542 const char *orig_secname = secname;
1543 char *dollar = NULL;
1544 lang_output_section_statement_type *os;
1545 lang_statement_list_type add_child;
1546 lang_statement_union_type **pl;
1548 /* Look through the script to see where to place this section. */
1549 if (!link_info.relocatable
1550 && (dollar = strchr (secname, '\$')) != NULL)
1552 size_t len = dollar - secname;
1553 char *newname = xmalloc (len + 1);
1554 memcpy (newname, secname, len);
1555 newname[len] = '\0';
1559 lang_list_init (&add_child);
1562 if (constraint == 0)
1563 for (os = lang_output_section_find (secname);
1565 os = next_matching_output_section_statement (os, 0))
1567 /* If we don't match an existing output section, tell
1568 lang_insert_orphan to create a new output section. */
1569 constraint = SPECIAL;
1571 if (os->bfd_section != NULL
1572 && (os->bfd_section->flags == 0
1573 || ((s->flags ^ os->bfd_section->flags)
1574 & (SEC_LOAD | SEC_ALLOC)) == 0))
1576 /* We already have an output section statement with this
1577 name, and its bfd section has compatible flags.
1578 If the section already exists but does not have any flags set,
1579 then it has been created by the linker, probably as a result of
1580 a --section-start command line switch. */
1581 lang_add_section (&add_child, s, os);
1588 static struct orphan_save hold[] =
1591 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1594 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1597 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1603 enum orphan_save_index
1610 static int orphan_init_done = 0;
1611 struct orphan_save *place;
1612 lang_output_section_statement_type *after;
1613 etree_type *address;
1615 if (!orphan_init_done)
1617 struct orphan_save *ho;
1618 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1619 if (ho->name != NULL)
1621 ho->os = lang_output_section_find (ho->name);
1622 if (ho->os != NULL && ho->os->flags == 0)
1623 ho->os->flags = ho->flags;
1625 orphan_init_done = 1;
1628 /* Try to put the new output section in a reasonable place based
1629 on the section name and section flags. */
1632 if ((s->flags & SEC_ALLOC) == 0)
1634 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1635 place = &hold[orphan_bss];
1636 else if ((s->flags & SEC_READONLY) == 0)
1637 place = &hold[orphan_data];
1638 else if ((s->flags & SEC_CODE) == 0)
1639 place = &hold[orphan_rodata];
1641 place = &hold[orphan_text];
1646 if (place->os == NULL)
1647 place->os = lang_output_section_find (place->name);
1650 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1652 /* *ABS* is always the first output section statement. */
1653 after = (&lang_output_section_statement.head
1654 ->output_section_statement);
1657 /* All sections in an executable must be aligned to a page boundary. */
1658 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1659 os = lang_insert_orphan (s, secname, constraint, after, place, address,
1663 /* If the section name has a '\$', sort it with the other '\$'
1665 for (pl = &os->children.head; *pl != NULL; pl = &(*pl)->header.next)
1667 lang_input_section_type *ls;
1670 if ((*pl)->header.type != lang_input_section_enum)
1673 ls = &(*pl)->input_section;
1675 lname = bfd_get_section_name (ls->section->owner, ls->section);
1676 if (strchr (lname, '\$') != NULL
1677 && (dollar == NULL || strcmp (orig_secname, lname) < 0))
1681 if (add_child.head != NULL)
1683 *add_child.tail = *pl;
1684 *pl = add_child.head;
1691 gld_${EMULATION_NAME}_open_dynamic_archive
1692 (const char *arch ATTRIBUTE_UNUSED,
1693 search_dirs_type *search,
1694 lang_input_statement_type *entry)
1698 const char * format;
1699 bfd_boolean use_prefix;
1703 /* Preferred explicit import library for dll's. */
1704 { "lib%s.dll.a", FALSE },
1705 /* Alternate explicit import library for dll's. */
1706 { "%s.dll.a", FALSE },
1707 /* "libfoo.a" could be either an import lib or a static lib.
1708 For backwards compatibility, libfoo.a needs to precede
1709 libfoo.dll and foo.dll in the search. */
1710 { "lib%s.a", FALSE },
1711 /* The 'native' spelling of an import lib name is "foo.lib". */
1712 { "%s.lib", FALSE },
1714 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1715 { "%s%s.dll", TRUE },
1717 /* Try "libfoo.dll" (default preferred dll name). */
1718 { "lib%s.dll", FALSE },
1719 /* Finally try 'native' dll name "foo.dll". */
1720 { "%s.dll", FALSE },
1721 /* Note: If adding more formats to this table, make sure to check to
1722 see if their length is longer than libname_fmt[0].format, and if
1723 so, update the call to xmalloc() below. */
1726 static unsigned int format_max_len = 0;
1727 const char * filename;
1733 if (! entry->is_archive)
1736 filename = entry->filename;
1738 if (format_max_len == 0)
1739 /* We need to allow space in the memory that we are going to allocate
1740 for the characters in the format string. Since the format array is
1741 static we only need to calculate this information once. In theory
1742 this value could also be computed statically, but this introduces
1743 the possibility for a discrepancy and hence a possible memory
1744 corruption. The lengths we compute here will be too long because
1745 they will include any formating characters (%s) in the strings, but
1746 this will not matter. */
1747 for (i = 0; libname_fmt[i].format; i++)
1748 if (format_max_len < strlen (libname_fmt[i].format))
1749 format_max_len = strlen (libname_fmt[i].format);
1751 full_string = xmalloc (strlen (search->name)
1755 + (pep_dll_search_prefix
1756 ? strlen (pep_dll_search_prefix) : 0)
1758 /* Allow for the terminating NUL and for the path
1759 separator character that is inserted between
1760 search->name and the start of the format string. */
1763 sprintf (full_string, "%s/", search->name);
1764 base_string = full_string + strlen (full_string);
1766 for (i = 0; libname_fmt[i].format; i++)
1769 if (libname_fmt[i].use_prefix)
1771 if (!pep_dll_search_prefix)
1773 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
1777 sprintf (base_string, libname_fmt[i].format, filename);
1779 if (ldfile_try_open_bfd (full_string, entry))
1783 if (!libname_fmt[i].format)
1789 entry->filename = full_string;
1795 gld_${EMULATION_NAME}_find_potential_libraries
1796 (char *name, lang_input_statement_type *entry)
1798 return ldfile_open_file_search (name, entry, "", ".lib");
1802 gld_${EMULATION_NAME}_get_script (int *isfile)
1804 # Scripts compiled in.
1805 # sed commands to quote an ld script as a C string.
1806 sc="-f stringify.sed"
1812 if (link_info.relocatable && config.build_constructors)
1815 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1816 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1817 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1818 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1819 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1820 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1821 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1822 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
1823 echo ' ; else if (link_info.pei386_auto_import == 1) return' >> e${EMULATION_NAME}.c
1824 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
1826 echo ' ; else return' >> e${EMULATION_NAME}.c
1827 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1828 echo '; }' >> e${EMULATION_NAME}.c
1833 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1835 gld_${EMULATION_NAME}_before_parse,
1838 gld_${EMULATION_NAME}_after_parse,
1839 gld_${EMULATION_NAME}_after_open,
1840 after_allocation_default,
1841 set_output_arch_default,
1842 ldemul_default_target,
1843 gld_${EMULATION_NAME}_before_allocation,
1844 gld_${EMULATION_NAME}_get_script,
1845 "${EMULATION_NAME}",
1847 gld_${EMULATION_NAME}_finish,
1848 NULL, /* Create output section statements. */
1849 gld_${EMULATION_NAME}_open_dynamic_archive,
1850 gld_${EMULATION_NAME}_place_orphan,
1851 gld_${EMULATION_NAME}_set_symbols,
1852 NULL, /* parse_args */
1853 gld${EMULATION_NAME}_add_options,
1854 gld${EMULATION_NAME}_handle_option,
1855 gld_${EMULATION_NAME}_unrecognized_file,
1856 gld_${EMULATION_NAME}_list_options,
1857 gld_${EMULATION_NAME}_recognized_file,
1858 gld_${EMULATION_NAME}_find_potential_libraries,
1859 NULL /* new_vers_pattern. */