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 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
13 2005, 2006, 2007 Free Software Foundation, Inc.
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. */
34 /* The original file generated returned different default scripts depending
35 on whether certain switches were set, but these switches pertain to the
36 Linux system and that particular version of coff. In the NT case, we
37 only determine if the subsystem is console or windows in order to select
38 the correct entry point by default. */
40 #define TARGET_IS_${EMULATION_NAME}
42 /* Do this before including bfd.h, so we prototype the right functions. */
44 #if defined(TARGET_IS_armpe) \
45 || defined(TARGET_IS_arm_epoc_pe) \
46 || defined(TARGET_IS_arm_wince_pe)
47 #define bfd_arm_allocate_interworking_sections \
48 bfd_${EMULATION_NAME}_allocate_interworking_sections
49 #define bfd_arm_get_bfd_for_interworking \
50 bfd_${EMULATION_NAME}_get_bfd_for_interworking
51 #define bfd_arm_process_before_allocation \
52 bfd_${EMULATION_NAME}_process_before_allocation
59 #include "libiberty.h"
70 #include "coff/internal.h"
72 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
73 header in generic PE code. */
74 #include "coff/i386.h"
77 /* FIXME: This is a BFD internal header file, and we should not be
79 #include "../bfd/libcoff.h"
83 #include "safe-ctype.h"
85 /* Permit the emulation parameters to override the default section
86 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
87 it seem that include/coff/internal.h should not define
88 PE_DEF_SECTION_ALIGNMENT. */
89 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
90 #undef PE_DEF_SECTION_ALIGNMENT
91 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
94 #if defined(TARGET_IS_i386pe) \
95 || defined(TARGET_IS_shpe) \
96 || defined(TARGET_IS_mipspe) \
97 || defined(TARGET_IS_armpe) \
98 || defined(TARGET_IS_arm_epoc_pe) \
99 || defined(TARGET_IS_arm_wince_pe)
103 #if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
104 #define PE_DEF_SUBSYSTEM 3
106 #undef NT_EXE_IMAGE_BASE
107 #undef PE_DEF_SECTION_ALIGNMENT
108 #undef PE_DEF_FILE_ALIGNMENT
109 #define NT_EXE_IMAGE_BASE 0x00010000
111 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
112 #define PE_DEF_SECTION_ALIGNMENT 0x00001000
113 #define PE_DEF_SUBSYSTEM 9
115 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
116 #define PE_DEF_SUBSYSTEM 2
118 #define PE_DEF_FILE_ALIGNMENT 0x00000200
121 #define U(S) ${INITIAL_SYMBOL_CHAR} S
123 static struct internal_extra_pe_aouthdr pe;
125 static flagword real_flags = 0;
126 static int support_old_code = 0;
127 static char * thumb_entry_symbol = NULL;
128 static lang_assignment_statement_type *image_base_statement = 0;
131 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
132 static char *pe_out_def_filename = NULL;
133 static char *pe_implib_filename = NULL;
134 static int pe_enable_auto_image_base = 0;
135 static char *pe_dll_search_prefix = NULL;
138 extern const char *output_filename;
141 gld_${EMULATION_NAME}_before_parse (void)
143 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
144 output_filename = "${EXECUTABLE_NAME:-a.exe}";
146 config.dynamic_link = TRUE;
147 config.has_shared = 1;
148 link_info.pei386_auto_import = -1;
149 link_info.pei386_runtime_pseudo_reloc = -1;
151 #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
152 #if defined TARGET_IS_mipspe || defined TARGET_IS_armpe || defined TARGET_IS_arm_wince_pe
153 lang_default_entry ("WinMainCRTStartup");
155 lang_default_entry ("_WinMainCRTStartup");
158 lang_default_entry ("${ENTRY}");
163 /* PE format extra command line options. */
165 /* Used for setting flags in the PE header. */
166 #define OPTION_BASE_FILE (300 + 1)
167 #define OPTION_DLL (OPTION_BASE_FILE + 1)
168 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
169 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
170 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
171 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
172 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
173 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
174 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
175 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
176 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
177 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
178 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
179 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
180 #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
181 #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
182 #define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
183 #define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
184 #define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1)
185 #define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
186 #define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
187 #define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
188 #define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
189 #define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
190 #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
191 #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
192 #define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
193 #define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
194 #define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
195 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
196 #define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
197 #define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
198 #define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
199 #define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
200 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \
201 (OPTION_EXCLUDE_LIBS + 1)
202 #define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \
203 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1)
204 #define OPTION_LARGE_ADDRESS_AWARE \
205 (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
208 gld${EMULATION_NAME}_add_options
209 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
210 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
211 struct option **really_longopts ATTRIBUTE_UNUSED)
213 static const struct option xtra_long[] = {
215 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
216 {"dll", no_argument, NULL, OPTION_DLL},
217 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
218 {"heap", required_argument, NULL, OPTION_HEAP},
219 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
220 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
221 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
222 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
223 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
224 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
225 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
226 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
227 {"stack", required_argument, NULL, OPTION_STACK},
228 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
229 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
230 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
232 /* getopt allows abbreviations, so we do this to stop it from treating -o
233 as an abbreviation for this option */
234 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
235 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
236 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
237 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
238 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
239 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
240 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
241 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
242 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
243 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
244 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
245 /* getopt() allows abbreviations, so we do this to stop it from
246 treating -c as an abbreviation for these --compat-implib. */
247 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
248 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
249 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
250 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
251 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
252 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
253 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
254 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
255 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
256 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
257 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
259 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
260 {NULL, no_argument, NULL, 0}
263 *longopts = (struct option *)
264 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
265 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
268 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
269 parameters which may be input from the command line. */
280 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
282 static definfo init[] =
284 /* imagebase must be first */
285 #define IMAGEBASEOFF 0
286 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
288 {&dll, sizeof(dll), 0, "__dll__", 0},
289 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
290 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
291 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
292 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
293 D(MajorImageVersion,"__major_image_version__", 1),
294 D(MinorImageVersion,"__minor_image_version__", 0),
295 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_wince_pe)
296 D(MajorSubsystemVersion,"__major_subsystem_version__", 3),
298 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
300 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
301 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
302 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
303 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
304 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
305 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
306 D(LoaderFlags,"__loader_flags__", 0x0),
307 { NULL, 0, 0, NULL, 0 }
312 gld_${EMULATION_NAME}_list_options (FILE *file)
314 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
315 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
316 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
317 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
318 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
319 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
320 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
321 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
322 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
323 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
324 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
325 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
326 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
327 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
328 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
329 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
331 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
332 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
333 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
334 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
335 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
336 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
337 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
338 fprintf (file, _(" --out-implib <file> Generate import library\n"));
339 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
340 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
341 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
342 create __imp_<SYMBOL> as well.\n"));
343 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
344 unless user specifies one\n"));
345 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
346 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
347 an importlib, use <string><basename>.dll\n\
348 in preference to lib<basename>.dll \n"));
349 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\
350 __imp_sym for DATA references\n"));
351 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
352 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
353 adding pseudo-relocations resolved at\n\
355 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
356 auto-imported DATA.\n"));
357 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
358 or linking to DLLs (esp. auto-import)\n"));
360 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
361 greater than 2 gigabytes\n"));
366 set_pe_name (char *name, long val)
370 /* Find the name and set it. */
371 for (i = 0; init[i].ptr; i++)
373 if (strcmp (name, init[i].symbol) == 0)
385 set_pe_subsystem (void)
389 const char *initial_symbol_char;
394 unsigned long temp_subsystem;
403 { "native", 1, "NtProcessStartup" },
404 { "windows", 2, "WinMainCRTStartup" },
405 { "console", 3, "mainCRTStartup" },
406 { "posix", 7, "__PosixProcessStartup"},
407 { "wince", 9, "WinMainCRTStartup" },
408 { "xbox", 14, "mainCRTStartup" },
411 /* Entry point name for arbitrary subsystem numbers. */
412 static const char default_entry[] = "mainCRTStartup";
414 /* Check for the presence of a version number. */
415 sver = strchr (optarg, ':');
417 len = strlen (optarg);
421 set_pe_name ("__major_subsystem_version__",
422 strtoul (sver + 1, &end, 0));
424 set_pe_name ("__minor_subsystem_version__",
425 strtoul (end + 1, &end, 0));
427 einfo (_("%P: warning: bad version number in -subsystem option\n"));
430 /* Check for numeric subsystem. */
431 temp_subsystem = strtoul (optarg, & end, 0);
432 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
434 /* Search list for a numeric match to use its entry point. */
435 for (i = 0; v[i].name; i++)
436 if (v[i].value == (int) temp_subsystem)
439 /* If no match, use the default. */
440 if (v[i].name != NULL)
443 entry = default_entry;
445 /* Use this subsystem. */
446 subsystem = (int) temp_subsystem;
450 /* Search for subsystem by name. */
451 for (i = 0; v[i].name; i++)
452 if (strncmp (optarg, v[i].name, len) == 0
453 && v[i].name[len] == '\0')
456 if (v[i].name == NULL)
458 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
463 subsystem = v[i].value;
466 set_pe_name ("__subsystem__", subsystem);
468 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
469 if (*initial_symbol_char != '\0')
473 /* lang_default_entry expects its argument to be permanently
474 allocated, so we don't free this string. */
475 alc_entry = xmalloc (strlen (initial_symbol_char)
478 strcpy (alc_entry, initial_symbol_char);
479 strcat (alc_entry, entry);
483 lang_default_entry (entry);
490 set_pe_value (char *name)
494 set_pe_name (name, strtoul (optarg, &end, 0));
497 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
504 set_pe_stack_heap (char *resname, char *comname)
506 set_pe_value (resname);
511 set_pe_value (comname);
514 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
519 gld${EMULATION_NAME}_handle_option (int optc)
526 case OPTION_BASE_FILE:
527 link_info.base_file = fopen (optarg, FOPEN_WB);
528 if (link_info.base_file == NULL)
530 /* xgettext:c-format */
531 fprintf (stderr, _("%s: Can't open base file %s\n"),
532 program_name, optarg);
539 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
542 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
544 case OPTION_SUBSYSTEM:
547 case OPTION_MAJOR_OS_VERSION:
548 set_pe_value ("__major_os_version__");
550 case OPTION_MINOR_OS_VERSION:
551 set_pe_value ("__minor_os_version__");
553 case OPTION_MAJOR_SUBSYSTEM_VERSION:
554 set_pe_value ("__major_subsystem_version__");
556 case OPTION_MINOR_SUBSYSTEM_VERSION:
557 set_pe_value ("__minor_subsystem_version__");
559 case OPTION_MAJOR_IMAGE_VERSION:
560 set_pe_value ("__major_image_version__");
562 case OPTION_MINOR_IMAGE_VERSION:
563 set_pe_value ("__minor_image_version__");
565 case OPTION_FILE_ALIGNMENT:
566 set_pe_value ("__file_alignment__");
568 case OPTION_SECTION_ALIGNMENT:
569 set_pe_value ("__section_alignment__");
572 set_pe_name ("__dll__", 1);
574 case OPTION_IMAGE_BASE:
575 set_pe_value ("__image_base__");
577 case OPTION_SUPPORT_OLD_CODE:
578 support_old_code = 1;
580 case OPTION_THUMB_ENTRY:
581 thumb_entry_symbol = optarg;
585 pe_out_def_filename = xstrdup (optarg);
587 case OPTION_EXPORT_ALL:
588 pe_dll_export_everything = 1;
590 case OPTION_EXCLUDE_SYMBOLS:
591 pe_dll_add_excludes (optarg, 0);
593 case OPTION_EXCLUDE_LIBS:
594 pe_dll_add_excludes (optarg, 1);
596 case OPTION_KILL_ATS:
599 case OPTION_STDCALL_ALIASES:
600 pe_dll_stdcall_aliases = 1;
602 case OPTION_ENABLE_STDCALL_FIXUP:
603 pe_enable_stdcall_fixup = 1;
605 case OPTION_DISABLE_STDCALL_FIXUP:
606 pe_enable_stdcall_fixup = 0;
608 case OPTION_IMPLIB_FILENAME:
609 pe_implib_filename = xstrdup (optarg);
611 case OPTION_WARN_DUPLICATE_EXPORTS:
612 pe_dll_warn_dup_exports = 1;
614 case OPTION_IMP_COMPAT:
615 pe_dll_compat_implib = 1;
617 case OPTION_ENABLE_AUTO_IMAGE_BASE:
618 pe_enable_auto_image_base = 1;
620 case OPTION_DISABLE_AUTO_IMAGE_BASE:
621 pe_enable_auto_image_base = 0;
623 case OPTION_DLL_SEARCH_PREFIX:
624 pe_dll_search_prefix = xstrdup (optarg);
626 case OPTION_NO_DEFAULT_EXCLUDES:
627 pe_dll_do_default_excludes = 0;
629 case OPTION_DLL_ENABLE_AUTO_IMPORT:
630 link_info.pei386_auto_import = 1;
632 case OPTION_DLL_DISABLE_AUTO_IMPORT:
633 link_info.pei386_auto_import = 0;
635 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
636 link_info.pei386_runtime_pseudo_reloc = 1;
638 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
639 link_info.pei386_runtime_pseudo_reloc = 0;
641 case OPTION_ENABLE_EXTRA_PE_DEBUG:
642 pe_dll_extra_pe_debug = 1;
645 case OPTION_LARGE_ADDRESS_AWARE:
646 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
655 strhash (const char *str)
657 const unsigned char *s;
664 s = (const unsigned char *) str;
665 while ((c = *s++) != '\0')
667 hash += c + (c << 17);
671 hash += len + (len << 17);
677 /* Use the output file to create a image base for relocatable DLLs. */
680 compute_dll_image_base (const char *ofile)
682 unsigned long hash = strhash (ofile);
683 return 0x61300000 + ((hash << 16) & 0x0FFC0000);
687 /* Assign values to the special symbols before the linker script is
691 gld_${EMULATION_NAME}_set_symbols (void)
693 /* Run through and invent symbols for all the
694 names and insert the defaults. */
696 lang_statement_list_type *save;
698 if (!init[IMAGEBASEOFF].inited)
700 if (link_info.relocatable)
701 init[IMAGEBASEOFF].value = 0;
702 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
704 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ?
705 compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
707 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
710 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
713 /* Don't do any symbol assignments if this is a relocatable link. */
714 if (link_info.relocatable)
717 /* Glue the assignments into the abs section. */
720 stat_ptr = &(abs_output_section->children);
722 for (j = 0; init[j].ptr; j++)
724 long val = init[j].value;
725 lang_assignment_statement_type *rv;
726 rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
728 if (init[j].size == sizeof (short))
729 *(short *) init[j].ptr = val;
730 else if (init[j].size == sizeof (int))
731 *(int *) init[j].ptr = val;
732 else if (init[j].size == sizeof (long))
733 *(long *) init[j].ptr = val;
734 /* This might be a long long or other special type. */
735 else if (init[j].size == sizeof (bfd_vma))
736 *(bfd_vma *) init[j].ptr = val;
738 if (j == IMAGEBASEOFF)
739 image_base_statement = rv;
741 /* Restore the pointer. */
744 if (pe.FileAlignment >
747 einfo (_("%P: warning, file alignment > section alignment.\n"));
751 /* This is called after the linker script and the command line options
755 gld_${EMULATION_NAME}_after_parse (void)
757 /* The Windows libraries are designed for the linker to treat the
758 entry point as an undefined symbol. Otherwise, the .obj that
759 defines mainCRTStartup is brought in because it is the first
760 encountered in libc.lib and it has other symbols in it which will
761 be pulled in by the link process. To avoid this, we act as
762 though the user specified -u with the entry point symbol.
764 This function is called after the linker script and command line
765 options have been read, so at this point we know the right entry
766 point. This function is called before the input files are
767 opened, so registering the symbol as undefined will make a
770 if (! link_info.relocatable && entry_symbol.name != NULL)
771 ldlang_add_undef (entry_symbol.name);
774 /* pe-dll.c directly accesses pe_data_import_dll,
775 so it must be defined outside of #ifdef DLL_SUPPORT.
776 Note - this variable is deliberately not initialised.
777 This allows it to be treated as a common varaible, and only
778 exist in one incarnation in a multiple target enabled linker. */
779 char * pe_data_import_dll;
782 static struct bfd_link_hash_entry *pe_undef_found_sym;
785 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
790 sl = strlen (string);
791 if (h->type == bfd_link_hash_defined
792 && strncmp (h->root.string, string, sl) == 0
793 && h->root.string[sl] == '@')
795 pe_undef_found_sym = h;
802 pe_fixup_stdcalls (void)
804 static int gave_warning_message = 0;
805 struct bfd_link_hash_entry *undef, *sym;
807 if (pe_dll_extra_pe_debug)
808 printf ("%s\n", __FUNCTION__);
810 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
811 if (undef->type == bfd_link_hash_undefined)
813 char* at = strchr (undef->root.string, '@');
814 int lead_at = (*undef->root.string == '@');
815 /* For now, don't try to fixup fastcall symbols. */
819 /* The symbol is a stdcall symbol, so let's look for a
820 cdecl symbol with the same name and resolve to that. */
821 char *cname = xstrdup (undef->root.string /* + lead_at */);
822 at = strchr (cname, '@');
824 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
826 if (sym && sym->type == bfd_link_hash_defined)
828 undef->type = bfd_link_hash_defined;
829 undef->u.def.value = sym->u.def.value;
830 undef->u.def.section = sym->u.def.section;
832 if (pe_enable_stdcall_fixup == -1)
834 einfo (_("Warning: resolving %s by linking to %s\n"),
835 undef->root.string, cname);
836 if (! gave_warning_message)
838 gave_warning_message = 1;
839 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
840 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
847 /* The symbol is a cdecl symbol, so we look for stdcall
848 symbols - which means scanning the whole symbol table. */
849 pe_undef_found_sym = 0;
850 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
851 (char *) undef->root.string);
852 sym = pe_undef_found_sym;
855 undef->type = bfd_link_hash_defined;
856 undef->u.def.value = sym->u.def.value;
857 undef->u.def.section = sym->u.def.section;
859 if (pe_enable_stdcall_fixup == -1)
861 einfo (_("Warning: resolving %s by linking to %s\n"),
862 undef->root.string, sym->root.string);
863 if (! gave_warning_message)
865 gave_warning_message = 1;
866 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
867 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
876 make_import_fixup (arelent *rel, asection *s)
878 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
881 if (pe_dll_extra_pe_debug)
882 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
883 (long) rel->address, (long) rel->addend);
885 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
886 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
887 s->owner, s, rel->address);
889 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
895 pe_find_data_imports (void)
897 struct bfd_link_hash_entry *undef, *sym;
899 if (link_info.pei386_auto_import == 0)
902 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
904 if (undef->type == bfd_link_hash_undefined)
906 /* C++ symbols are *long*. */
909 if (pe_dll_extra_pe_debug)
910 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
912 sprintf (buf, "__imp_%s", undef->root.string);
914 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
916 if (sym && sym->type == bfd_link_hash_defined)
918 bfd *b = sym->u.def.section->owner;
920 int nsyms, symsize, i;
922 if (link_info.pei386_auto_import == -1)
924 static bfd_boolean warned = FALSE;
926 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
927 undef->root.string, buf);
929 /* PR linker/4844. */
933 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
934 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs."));
938 symsize = bfd_get_symtab_upper_bound (b);
939 symbols = (asymbol **) xmalloc (symsize);
940 nsyms = bfd_canonicalize_symtab (b, symbols);
942 for (i = 0; i < nsyms; i++)
944 if (! CONST_STRNEQ (symbols[i]->name, U ("_head_")))
947 if (pe_dll_extra_pe_debug)
948 printf ("->%s\n", symbols[i]->name);
950 pe_data_import_dll = (char*) (symbols[i]->name +
951 sizeof (U ("_head_")) - 1);
955 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
958 /* Let's differentiate it somehow from defined. */
959 undef->type = bfd_link_hash_defweak;
960 /* We replace original name with __imp_ prefixed, this
961 1) may trash memory 2) leads to duplicate symbol generation.
962 Still, IMHO it's better than having name poluted. */
963 undef->root.string = sym->root.string;
964 undef->u.def.value = sym->u.def.value;
965 undef->u.def.section = sym->u.def.section;
972 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
974 if (pe_dll_extra_pe_debug)
975 printf ("+%s\n", h->string);
979 #endif /* DLL_SUPPORT */
983 gld_${EMULATION_NAME}_after_open (void)
986 if (pe_dll_extra_pe_debug)
989 struct bfd_link_hash_entry *sym;
991 printf ("%s()\n", __FUNCTION__);
993 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
994 printf ("-%s\n", sym->root.string);
995 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
997 for (a = link_info.input_bfds; a; a = a->link_next)
998 printf ("*%s\n",a->filename);
1002 /* Pass the wacky PE command line options into the output bfd.
1003 FIXME: This should be done via a function, rather than by
1004 including an internal BFD header. */
1006 if (coff_data (output_bfd) == NULL || coff_data (output_bfd)->pe == 0)
1007 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"), output_bfd);
1009 pe_data (output_bfd)->pe_opthdr = pe;
1010 pe_data (output_bfd)->dll = init[DLLOFF].value;
1011 pe_data (output_bfd)->real_flags |= real_flags;
1014 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
1015 pe_fixup_stdcalls ();
1017 pe_process_import_defs (output_bfd, & link_info);
1019 pe_find_data_imports ();
1021 #if defined (TARGET_IS_i386pe) \
1022 || defined (TARGET_IS_armpe) \
1023 || defined (TARGET_IS_arm_epoc_pe) \
1024 || defined (TARGET_IS_arm_wince_pe)
1025 if (!link_info.relocatable)
1026 pe_dll_build_sections (output_bfd, &link_info);
1028 pe_exe_build_sections (output_bfd, &link_info);
1030 if (link_info.shared)
1031 pe_dll_build_sections (output_bfd, &link_info);
1033 #endif /* DLL_SUPPORT */
1035 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1036 if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
1038 /* The arm backend needs special fields in the output hash structure.
1039 These will only be created if the output format is an arm format,
1040 hence we do not support linking and changing output formats at the
1041 same time. Use a link followed by objcopy to change output formats. */
1042 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1046 /* Find a BFD that can hold the interworking stubs. */
1047 LANG_FOR_EACH_INPUT_STATEMENT (is)
1049 if (bfd_arm_get_bfd_for_interworking (is->the_bfd, & link_info))
1056 /* This next chunk of code tries to detect the case where you have
1057 two import libraries for the same DLL (specifically,
1058 symbolically linking libm.a and libc.a in cygwin to
1059 libcygwin.a). In those cases, it's possible for function
1060 thunks from the second implib to be used but without the
1061 head/tail objects, causing an improper import table. We detect
1062 those cases and rename the "other" import libraries to match
1063 the one the head/tail come from, so that the linker will sort
1064 things nicely and produce a valid import table. */
1066 LANG_FOR_EACH_INPUT_STATEMENT (is)
1068 if (is->the_bfd->my_archive)
1070 int idata2 = 0, reloc_count=0, is_imp = 0;
1073 /* See if this is an import library thunk. */
1074 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1076 if (strcmp (sec->name, ".idata\$2") == 0)
1078 if (CONST_STRNEQ (sec->name, ".idata\$"))
1080 reloc_count += sec->reloc_count;
1083 if (is_imp && !idata2 && reloc_count)
1085 /* It is, look for the reference to head and see if it's
1086 from our own library. */
1087 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1096 symsize = bfd_get_symtab_upper_bound (is->the_bfd);
1099 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1103 symbols = (asymbol **) xmalloc (symsize);
1104 symsize = bfd_canonicalize_symtab (is->the_bfd, symbols);
1107 einfo ("%X%P: unable to process symbols: %E");
1111 relocs = (arelent **) xmalloc ((size_t) relsize);
1112 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1117 einfo ("%X%P: unable to process relocs: %E");
1121 for (i = 0; i < nrelocs; i++)
1123 struct bfd_symbol *s;
1124 struct bfd_link_hash_entry * blhe;
1125 char *other_bfd_filename;
1128 s = (relocs[i]->sym_ptr_ptr)[0];
1130 if (s->flags & BSF_LOCAL)
1133 /* Thunk section with reloc to another bfd. */
1134 blhe = bfd_link_hash_lookup (link_info.hash,
1136 FALSE, FALSE, TRUE);
1139 || blhe->type != bfd_link_hash_defined)
1143 = blhe->u.def.section->owner->my_archive
1144 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1145 : bfd_get_filename (blhe->u.def.section->owner);
1147 if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1148 other_bfd_filename) == 0)
1151 /* Rename this implib to match the other one. */
1152 n = xmalloc (strlen (other_bfd_filename) + 1);
1153 strcpy (n, other_bfd_filename);
1154 is->the_bfd->my_archive->filename = n;
1158 /* Note - we do not free the symbols,
1159 they are now cached in the BFD. */
1169 lang_input_statement_type *is2;
1170 lang_input_statement_type *is3;
1172 /* Careful - this is a shell script. Watch those dollar signs! */
1173 /* Microsoft import libraries have every member named the same,
1174 and not in the right order for us to link them correctly. We
1175 must detect these and rename the members so that they'll link
1176 correctly. There are three types of objects: the head, the
1177 thunks, and the sentinel(s). The head is easy; it's the one
1178 with idata2. We assume that the sentinels won't have relocs,
1179 and the thunks will. It's easier than checking the symbol
1180 table for external references. */
1181 LANG_FOR_EACH_INPUT_STATEMENT (is)
1183 if (is->the_bfd->my_archive)
1186 bfd *arch = is->the_bfd->my_archive;
1188 if (cur_arch != arch)
1194 is3 && is3->the_bfd->my_archive == arch;
1195 is3 = (lang_input_statement_type *) is3->next)
1197 /* A MS dynamic import library can also contain static
1198 members, so look for the first element with a .dll
1199 extension, and use that for the remainder of the
1201 pnt = strrchr (is3->the_bfd->filename, '.');
1202 if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1210 /* OK, found one. Now look to see if the remaining
1211 (dynamic import) members use the same name. */
1213 is2 && is2->the_bfd->my_archive == arch;
1214 is2 = (lang_input_statement_type *) is2->next)
1216 /* Skip static members, ie anything with a .obj
1218 pnt = strrchr (is2->the_bfd->filename, '.');
1219 if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1222 if (strcmp (is3->the_bfd->filename,
1223 is2->the_bfd->filename))
1232 /* This fragment might have come from an .obj file in a Microsoft
1233 import, and not an actual import record. If this is the case,
1234 then leave the filename alone. */
1235 pnt = strrchr (is->the_bfd->filename, '.');
1237 if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1239 int idata2 = 0, reloc_count=0;
1241 char *new_name, seq;
1243 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1245 if (strcmp (sec->name, ".idata\$2") == 0)
1247 reloc_count += sec->reloc_count;
1250 if (idata2) /* .idata2 is the TOC */
1252 else if (reloc_count > 0) /* thunks */
1257 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1258 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1259 is->the_bfd->filename = new_name;
1261 new_name = xmalloc (strlen (is->filename) + 3);
1262 sprintf (new_name, "%s.%c", is->filename, seq);
1263 is->filename = new_name;
1270 /* The following chunk of code tries to identify jump stubs in
1271 import libraries which are dead code and eliminates them
1272 from the final link. For each exported symbol <sym>, there
1273 is a object file in the import library with a .text section
1274 and several .idata$* sections. The .text section contains the
1275 symbol definition for <sym> which is a jump stub of the form
1276 jmp *__imp_<sym>. The .idata$5 contains the symbol definition
1277 for __imp_<sym> which is the address of the slot for <sym> in
1278 the import address table. When a symbol is imported explicitly
1279 using __declspec(dllimport) declaration, the compiler generates
1280 a reference to __imp_<sym> which directly resolves to the
1281 symbol in .idata$5, in which case the jump stub code is not
1282 needed. The following code tries to identify jump stub sections
1283 in import libraries which are not referred to by anyone and
1284 marks them for exclusion from the final link. */
1285 LANG_FOR_EACH_INPUT_STATEMENT (is)
1287 if (is->the_bfd->my_archive)
1290 asection *sec, *stub_sec = NULL;
1292 /* See if this is an import library thunk. */
1293 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1295 if (strncmp (sec->name, ".idata\$", 7) == 0)
1297 /* The section containing the jmp stub has code
1299 if ((sec->flags & SEC_CODE) && sec->reloc_count)
1303 if (is_imp && stub_sec)
1308 struct bfd_link_hash_entry * blhe;
1310 symsize = bfd_get_symtab_upper_bound (is->the_bfd);
1311 symbols = xmalloc (symsize);
1312 symsize = bfd_canonicalize_symtab (is->the_bfd, symbols);
1314 for (src_count = 0; src_count < symsize; src_count++)
1316 if (symbols[src_count]->section->id == stub_sec->id)
1318 /* This symbol belongs to the section containing
1320 blhe = bfd_link_hash_lookup (link_info.hash,
1321 symbols[src_count]->name,
1322 FALSE, FALSE, TRUE);
1323 /* If the symbol in the stub section has no other
1324 undefined references, exclude the stub section
1325 from the final link. */
1326 if (blhe && (blhe->type == bfd_link_hash_defined)
1327 && (blhe->u.undef.next == NULL))
1328 stub_sec->flags |= SEC_EXCLUDE;
1339 gld_${EMULATION_NAME}_before_allocation (void)
1341 #ifdef TARGET_IS_ppcpe
1342 /* Here we rummage through the found bfds to collect toc information. */
1344 LANG_FOR_EACH_INPUT_STATEMENT (is)
1346 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1348 /* xgettext:c-format */
1349 einfo (_("Errors encountered processing file %s\n"), is->filename);
1354 /* We have seen it all. Allocate it, and carry on. */
1355 ppc_allocate_toc_section (&link_info);
1356 #endif /* TARGET_IS_ppcpe */
1358 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1359 /* FIXME: we should be able to set the size of the interworking stub
1362 Here we rummage through the found bfds to collect glue
1363 information. FIXME: should this be based on a command line
1364 option? krk@cygnus.com. */
1366 LANG_FOR_EACH_INPUT_STATEMENT (is)
1368 if (! bfd_arm_process_before_allocation
1369 (is->the_bfd, & link_info, support_old_code))
1371 /* xgettext:c-format */
1372 einfo (_("Errors encountered processing file %s for interworking"),
1378 /* We have seen it all. Allocate it, and carry on. */
1379 bfd_arm_allocate_interworking_sections (& link_info);
1380 #endif /* TARGET_IS_armpe || TARGET_IS_arm_epoc_pe || TARGET_IS_arm_wince_pe */
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_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1405 const char *ext = entry->filename + strlen (entry->filename) - 4;
1407 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1409 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1413 int i, buflen=0, len;
1416 for (i = 0; i < pe_def_file->num_exports; i++)
1418 len = strlen (pe_def_file->exports[i].internal_name);
1419 if (buflen < len + 2)
1423 buf = (char *) xmalloc (buflen);
1425 for (i = 0; i < pe_def_file->num_exports; i++)
1427 struct bfd_link_hash_entry *h;
1429 sprintf (buf, "%s%s", U (""), pe_def_file->exports[i].internal_name);
1431 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1432 if (h == (struct bfd_link_hash_entry *) NULL)
1433 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1434 if (h->type == bfd_link_hash_new)
1436 h->type = bfd_link_hash_undefined;
1437 h->u.undef.abfd = NULL;
1438 bfd_link_add_undef (link_info.hash, h);
1443 /* def_file_print (stdout, pe_def_file); */
1444 if (pe_def_file->is_dll == 1)
1445 link_info.shared = 1;
1447 if (pe_def_file->base_address != (bfd_vma)(-1))
1450 pe_data (output_bfd)->pe_opthdr.ImageBase =
1451 init[IMAGEBASEOFF].value = pe_def_file->base_address;
1452 init[IMAGEBASEOFF].inited = 1;
1453 if (image_base_statement)
1454 image_base_statement->exp =
1455 exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase));
1458 if (pe_def_file->stack_reserve != -1
1459 && ! saw_option ("__size_of_stack_reserve__"))
1461 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1462 if (pe_def_file->stack_commit != -1)
1463 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1465 if (pe_def_file->heap_reserve != -1
1466 && ! saw_option ("__size_of_heap_reserve__"))
1468 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1469 if (pe_def_file->heap_commit != -1)
1470 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1480 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1483 #ifdef TARGET_IS_i386pe
1484 pe_dll_id_target ("pei-i386");
1486 #ifdef TARGET_IS_shpe
1487 pe_dll_id_target ("pei-shl");
1489 #ifdef TARGET_IS_mipspe
1490 pe_dll_id_target ("pei-mips");
1492 #ifdef TARGET_IS_armpe
1493 pe_dll_id_target ("pei-arm-little");
1495 #ifdef TARGET_IS_arm_epoc_pe
1496 pe_dll_id_target ("epoc-pei-arm-little");
1498 #ifdef TARGET_IS_arm_wince_pe
1499 pe_dll_id_target ("pei-arm-wince-little");
1501 if (pe_bfd_is_dll (entry->the_bfd))
1502 return pe_implied_import_dll (entry->filename);
1508 gld_${EMULATION_NAME}_finish (void)
1510 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe)
1511 struct bfd_link_hash_entry * h;
1513 if (thumb_entry_symbol != NULL)
1515 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
1516 FALSE, FALSE, TRUE);
1518 if (h != (struct bfd_link_hash_entry *) NULL
1519 && (h->type == bfd_link_hash_defined
1520 || h->type == bfd_link_hash_defweak)
1521 && h->u.def.section->output_section != NULL)
1523 static char buffer[32];
1526 /* Special procesing is required for a Thumb entry symbol. The
1527 bottom bit of its address must be set. */
1528 val = (h->u.def.value
1529 + bfd_get_section_vma (output_bfd,
1530 h->u.def.section->output_section)
1531 + h->u.def.section->output_offset);
1535 /* Now convert this value into a string and store it in entry_symbol
1536 where the lang_finish() function will pick it up. */
1540 sprintf_vma (buffer + 2, val);
1542 if (entry_symbol.name != NULL && entry_from_cmdline)
1543 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
1544 thumb_entry_symbol, entry_symbol.name);
1545 entry_symbol.name = buffer;
1548 einfo (_("%P: warning: cannot find thumb start symbol %s\n"), thumb_entry_symbol);
1550 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) || defined(TARGET_IS_arm_wince_pe) */
1555 if (link_info.shared
1556 #if !defined(TARGET_IS_shpe) && !defined(TARGET_IS_mipspe)
1557 || (!link_info.relocatable && pe_def_file->num_exports != 0)
1561 pe_dll_fill_sections (output_bfd, &link_info);
1562 if (pe_implib_filename)
1563 pe_dll_generate_implib (pe_def_file, pe_implib_filename);
1565 #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
1566 /* ARM doesn't need relocs. */
1569 pe_exe_fill_sections (output_bfd, &link_info);
1573 if (pe_out_def_filename)
1574 pe_dll_generate_def_file (pe_out_def_filename);
1575 #endif /* DLL_SUPPORT */
1577 /* I don't know where .idata gets set as code, but it shouldn't be. */
1579 asection *asec = bfd_get_section_by_name (output_bfd, ".idata");
1583 asec->flags &= ~SEC_CODE;
1584 asec->flags |= SEC_DATA;
1590 /* Place an orphan section.
1592 We use this to put sections in a reasonable place in the file, and
1593 to ensure that they are aligned as required.
1595 We handle grouped sections here as well. A section named .foo$nn
1596 goes into the output section .foo. All grouped sections are sorted
1599 Grouped sections for the default sections are handled by the
1600 default linker script using wildcards, and are sorted by
1604 gld_${EMULATION_NAME}_place_orphan (asection *s)
1606 const char *secname;
1607 const char *orig_secname;
1608 char *dollar = NULL;
1609 lang_output_section_statement_type *os;
1610 lang_statement_list_type add_child;
1612 secname = bfd_get_section_name (s->owner, s);
1614 /* Look through the script to see where to place this section. */
1615 orig_secname = secname;
1616 if (!link_info.relocatable
1617 && (dollar = strchr (secname, '$')) != NULL)
1619 size_t len = dollar - orig_secname;
1620 char *newname = xmalloc (len + 1);
1621 memcpy (newname, orig_secname, len);
1622 newname[len] = '\0';
1626 os = lang_output_section_find (secname);
1628 lang_list_init (&add_child);
1631 && (os->bfd_section == NULL
1632 || os->bfd_section->flags == 0
1633 || ((s->flags ^ os->bfd_section->flags)
1634 & (SEC_LOAD | SEC_ALLOC)) == 0))
1636 /* We already have an output section statement with this
1637 name, and its bfd section, if any, has compatible flags.
1638 If the section already exists but does not have any flags set,
1639 then it has been created by the linker, probably as a result of
1640 a --section-start command line switch. */
1641 lang_add_section (&add_child, s, os);
1645 static struct orphan_save hold[] =
1648 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1651 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1654 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1660 enum orphan_save_index
1667 static int orphan_init_done = 0;
1668 struct orphan_save *place;
1669 lang_output_section_statement_type *after;
1670 etree_type *address;
1672 if (!orphan_init_done)
1674 struct orphan_save *ho;
1675 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1676 if (ho->name != NULL)
1678 ho->os = lang_output_section_find (ho->name);
1679 if (ho->os != NULL && ho->os->flags == 0)
1680 ho->os->flags = ho->flags;
1682 orphan_init_done = 1;
1685 /* Try to put the new output section in a reasonable place based
1686 on the section name and section flags. */
1689 if ((s->flags & SEC_ALLOC) == 0)
1691 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1692 place = &hold[orphan_bss];
1693 else if ((s->flags & SEC_READONLY) == 0)
1694 place = &hold[orphan_data];
1695 else if ((s->flags & SEC_CODE) == 0)
1696 place = &hold[orphan_rodata];
1698 place = &hold[orphan_text];
1703 if (place->os == NULL)
1704 place->os = lang_output_section_find (place->name);
1707 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1709 /* *ABS* is always the first output section statement. */
1710 after = (&lang_output_section_statement.head
1711 ->output_section_statement);
1714 /* Choose a unique name for the section. This will be needed if the
1715 same section name appears in the input file with different
1716 loadable or allocatable characteristics. */
1717 if (bfd_get_section_by_name (output_bfd, secname) != NULL)
1719 static int count = 1;
1720 secname = bfd_get_unique_section_name (output_bfd, secname, &count);
1721 if (secname == NULL)
1722 einfo ("%F%P: place_orphan failed: %E\n");
1725 /* All sections in an executable must be aligned to a page boundary. */
1726 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1727 os = lang_insert_orphan (s, secname, after, place, address, &add_child);
1731 lang_statement_union_type **pl = &os->children.head;
1735 bfd_boolean found_dollar;
1737 /* The section name has a '$'. Sort it with the other '$'
1739 found_dollar = FALSE;
1740 for ( ; *pl != NULL; pl = &(*pl)->header.next)
1742 lang_input_section_type *ls;
1745 if ((*pl)->header.type != lang_input_section_enum)
1748 ls = &(*pl)->input_section;
1750 lname = bfd_get_section_name (ls->section->owner, ls->section);
1751 if (strchr (lname, '$') == NULL)
1758 found_dollar = TRUE;
1759 if (strcmp (orig_secname, lname) < 0)
1765 if (add_child.head != NULL)
1767 add_child.head->header.next = *pl;
1768 *pl = add_child.head;
1776 gld_${EMULATION_NAME}_open_dynamic_archive
1777 (const char *arch ATTRIBUTE_UNUSED, search_dirs_type *search,
1778 lang_input_statement_type *entry)
1782 const char * format;
1783 bfd_boolean use_prefix;
1787 /* Preferred explicit import library for dll's. */
1788 { "lib%s.dll.a", FALSE },
1789 /* Alternate explicit import library for dll's. */
1790 { "%s.dll.a", FALSE },
1791 /* "libfoo.a" could be either an import lib or a static lib.
1792 For backwards compatibility, libfoo.a needs to precede
1793 libfoo.dll and foo.dll in the search. */
1794 { "lib%s.a", FALSE },
1795 /* The 'native' spelling of an import lib name is "foo.lib". */
1796 { "%s.lib", FALSE },
1798 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1799 { "%s%s.dll", TRUE },
1801 /* Try "libfoo.dll" (default preferred dll name). */
1802 { "lib%s.dll", FALSE },
1803 /* Finally try 'native' dll name "foo.dll". */
1804 { "%s.dll", FALSE },
1805 /* Note: If adding more formats to this table, make sure to check to
1806 see if their length is longer than libname_fmt[0].format, and if
1807 so, update the call to xmalloc() below. */
1810 static unsigned int format_max_len = 0;
1811 const char * filename;
1817 if (! entry->is_archive)
1820 filename = entry->filename;
1822 if (format_max_len == 0)
1823 /* We need to allow space in the memory that we are going to allocate
1824 for the characters in the format string. Since the format array is
1825 static we only need to calculate this information once. In theory
1826 this value could also be computed statically, but this introduces
1827 the possibility for a discrepancy and hence a possible memory
1828 corruption. The lengths we compute here will be too long because
1829 they will include any formating characters (%s) in the strings, but
1830 this will not matter. */
1831 for (i = 0; libname_fmt[i].format; i++)
1832 if (format_max_len < strlen (libname_fmt[i].format))
1833 format_max_len = strlen (libname_fmt[i].format);
1835 full_string = xmalloc (strlen (search->name)
1839 + (pe_dll_search_prefix
1840 ? strlen (pe_dll_search_prefix) : 0)
1842 /* Allow for the terminating NUL and for the path
1843 separator character that is inserted between
1844 search->name and the start of the format string. */
1847 sprintf (full_string, "%s/", search->name);
1848 base_string = full_string + strlen (full_string);
1850 for (i = 0; libname_fmt[i].format; i++)
1853 if (libname_fmt[i].use_prefix)
1855 if (!pe_dll_search_prefix)
1857 sprintf (base_string, libname_fmt[i].format, pe_dll_search_prefix, filename);
1861 sprintf (base_string, libname_fmt[i].format, filename);
1863 if (ldfile_try_open_bfd (full_string, entry))
1867 if (!libname_fmt[i].format)
1873 entry->filename = full_string;
1879 gld_${EMULATION_NAME}_find_potential_libraries
1880 (char *name, lang_input_statement_type *entry)
1882 return ldfile_open_file_search (name, entry, "", ".lib");
1886 gld_${EMULATION_NAME}_get_script (int *isfile)
1888 # Scripts compiled in.
1889 # sed commands to quote an ld script as a C string.
1890 sc="-f stringify.sed"
1896 if (link_info.relocatable && config.build_constructors)
1899 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1900 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1901 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1902 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1903 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1904 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1905 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1906 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
1907 echo ' ; else if (link_info.pei386_auto_import == 1) return' >> e${EMULATION_NAME}.c
1908 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
1910 echo ' ; else return' >> e${EMULATION_NAME}.c
1911 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1912 echo '; }' >> e${EMULATION_NAME}.c
1917 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1919 gld_${EMULATION_NAME}_before_parse,
1922 gld_${EMULATION_NAME}_after_parse,
1923 gld_${EMULATION_NAME}_after_open,
1924 after_allocation_default,
1925 set_output_arch_default,
1926 ldemul_default_target,
1927 gld_${EMULATION_NAME}_before_allocation,
1928 gld_${EMULATION_NAME}_get_script,
1929 "${EMULATION_NAME}",
1931 gld_${EMULATION_NAME}_finish,
1932 NULL, /* Create output section statements. */
1933 gld_${EMULATION_NAME}_open_dynamic_archive,
1934 gld_${EMULATION_NAME}_place_orphan,
1935 gld_${EMULATION_NAME}_set_symbols,
1936 NULL, /* parse_args */
1937 gld${EMULATION_NAME}_add_options,
1938 gld${EMULATION_NAME}_handle_option,
1939 gld_${EMULATION_NAME}_unrecognized_file,
1940 gld_${EMULATION_NAME}_list_options,
1941 gld_${EMULATION_NAME}_recognized_file,
1942 gld_${EMULATION_NAME}_find_potential_libraries,
1943 NULL /* new_vers_pattern. */