1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 if [ -z "$MACHINE" ]; then
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
8 rm -f e${EMULATION_NAME}.c
9 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
10 cat >>e${EMULATION_NAME}.c <<EOF
11 /* This file is part of GLD, the Gnu Linker.
12 Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
13 Free Software Foundation, Inc.
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 2 of the License, or
18 (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
30 /* The original file generated returned different default scripts depending
31 on whether certain switches were set, but these switches pertain to the
32 Linux system and that particular version of coff. In the NT case, we
33 only determine if the subsystem is console or windows in order to select
34 the correct entry point by default. */
36 #define TARGET_IS_${EMULATION_NAME}
38 /* Do this before including bfd.h, so we prototype the right functions. */
39 #ifdef TARGET_IS_arm_epoc_pe
40 #define bfd_arm_pe_allocate_interworking_sections \
41 bfd_arm_epoc_pe_allocate_interworking_sections
42 #define bfd_arm_pe_get_bfd_for_interworking \
43 bfd_arm_epoc_pe_get_bfd_for_interworking
44 #define bfd_arm_pe_process_before_allocation \
45 bfd_arm_epoc_pe_process_before_allocation
52 #include "libiberty.h"
63 #include "coff/internal.h"
65 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
66 header in generic PE code. */
67 #include "coff/i386.h"
70 /* FIXME: This is a BFD internal header file, and we should not be
72 #include "../bfd/libcoff.h"
76 #include "safe-ctype.h"
78 /* Permit the emulation parameters to override the default section
79 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
80 it seem that include/coff/internal.h should not define
81 PE_DEF_SECTION_ALIGNMENT. */
82 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
83 #undef PE_DEF_SECTION_ALIGNMENT
84 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
87 #if defined(TARGET_IS_i386pe)
90 #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe) || defined(TARGET_IS_armpe)
94 #if defined(TARGET_IS_i386pe) || ! defined(DLL_SUPPORT)
95 #define PE_DEF_SUBSYSTEM 3
97 #undef NT_EXE_IMAGE_BASE
98 #undef PE_DEF_SECTION_ALIGNMENT
99 #undef PE_DEF_FILE_ALIGNMENT
100 #define NT_EXE_IMAGE_BASE 0x00010000
101 #ifdef TARGET_IS_armpe
102 #define PE_DEF_SECTION_ALIGNMENT 0x00001000
103 #define PE_DEF_SUBSYSTEM 9
105 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
106 #define PE_DEF_SUBSYSTEM 2
108 #define PE_DEF_FILE_ALIGNMENT 0x00000200
112 static struct internal_extra_pe_aouthdr pe;
114 static flagword real_flags = 0;
115 static int support_old_code = 0;
116 static char * thumb_entry_symbol = NULL;
117 static lang_assignment_statement_type *image_base_statement = 0;
120 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable. */
121 static char *pe_out_def_filename = NULL;
122 static char *pe_implib_filename = NULL;
123 static int pe_enable_auto_image_base = 0;
124 static char *pe_dll_search_prefix = NULL;
127 extern const char *output_filename;
130 gld_${EMULATION_NAME}_before_parse (void)
132 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
133 output_filename = "${EXECUTABLE_NAME:-a.exe}";
135 config.dynamic_link = TRUE;
136 config.has_shared = 1;
137 link_info.pei386_auto_import = -1;
138 link_info.pei386_runtime_pseudo_reloc = FALSE;
140 #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
141 #if defined TARGET_IS_mipspe || defined TARGET_IS_armpe
142 lang_add_entry ("WinMainCRTStartup", FALSE);
144 lang_add_entry ("_WinMainCRTStartup", FALSE);
150 /* PE format extra command line options. */
152 /* Used for setting flags in the PE header. */
153 #define OPTION_BASE_FILE (300 + 1)
154 #define OPTION_DLL (OPTION_BASE_FILE + 1)
155 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
156 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
157 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
158 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
159 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
160 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
161 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
162 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
163 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
164 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
165 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
166 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
167 #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
168 #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
169 #define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
170 #define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
171 #define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1)
172 #define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
173 #define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
174 #define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
175 #define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
176 #define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
177 #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
178 #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
179 #define OPTION_ENABLE_AUTO_IMAGE_BASE (OPTION_IMP_COMPAT + 1)
180 #define OPTION_DISABLE_AUTO_IMAGE_BASE (OPTION_ENABLE_AUTO_IMAGE_BASE + 1)
181 #define OPTION_DLL_SEARCH_PREFIX (OPTION_DISABLE_AUTO_IMAGE_BASE + 1)
182 #define OPTION_NO_DEFAULT_EXCLUDES (OPTION_DLL_SEARCH_PREFIX + 1)
183 #define OPTION_DLL_ENABLE_AUTO_IMPORT (OPTION_NO_DEFAULT_EXCLUDES + 1)
184 #define OPTION_DLL_DISABLE_AUTO_IMPORT (OPTION_DLL_ENABLE_AUTO_IMPORT + 1)
185 #define OPTION_ENABLE_EXTRA_PE_DEBUG (OPTION_DLL_DISABLE_AUTO_IMPORT + 1)
186 #define OPTION_EXCLUDE_LIBS (OPTION_ENABLE_EXTRA_PE_DEBUG + 1)
187 #define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC \
188 (OPTION_EXCLUDE_LIBS + 1)
189 #define OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC \
190 (OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC + 1)
191 #define OPTION_LARGE_ADDRESS_AWARE \
192 (OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC + 1)
195 gld${EMULATION_NAME}_add_options
196 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
197 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
198 struct option **really_longopts ATTRIBUTE_UNUSED)
200 static const struct option xtra_long[] = {
202 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
203 {"dll", no_argument, NULL, OPTION_DLL},
204 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
205 {"heap", required_argument, NULL, OPTION_HEAP},
206 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
207 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
208 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
209 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
210 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
211 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
212 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
213 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
214 {"stack", required_argument, NULL, OPTION_STACK},
215 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
216 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
217 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
219 /* getopt allows abbreviations, so we do this to stop it from treating -o
220 as an abbreviation for this option */
221 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
222 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
223 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
224 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
225 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
226 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
227 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
228 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
229 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
230 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
231 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
232 /* getopt() allows abbreviations, so we do this to stop it from
233 treating -c as an abbreviation for these --compat-implib. */
234 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
235 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
236 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
237 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
238 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
239 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
240 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
241 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
242 {"enable-extra-pe-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
243 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
244 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
246 {"large-address-aware", no_argument, NULL, OPTION_LARGE_ADDRESS_AWARE},
247 {NULL, no_argument, NULL, 0}
250 *longopts = (struct option *)
251 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
252 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
255 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
256 parameters which may be input from the command line. */
267 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
269 static definfo init[] =
271 /* imagebase must be first */
272 #define IMAGEBASEOFF 0
273 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
275 {&dll, sizeof(dll), 0, "__dll__", 0},
276 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
277 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
278 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
279 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
280 D(MajorImageVersion,"__major_image_version__", 1),
281 D(MinorImageVersion,"__minor_image_version__", 0),
282 #ifdef TARGET_IS_armpe
283 D(MajorSubsystemVersion,"__major_subsystem_version__", 2),
285 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
287 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
288 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
289 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
290 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
291 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
292 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
293 D(LoaderFlags,"__loader_flags__", 0x0),
294 { NULL, 0, 0, NULL, 0 }
299 gld_${EMULATION_NAME}_list_options (FILE *file)
301 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
302 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
303 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
304 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
305 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
306 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
307 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
308 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
309 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
310 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
311 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
312 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
313 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
314 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
315 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
316 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
318 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
319 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
320 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
321 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
322 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
323 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
324 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
325 fprintf (file, _(" --out-implib <file> Generate import library\n"));
326 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
327 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
328 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
329 create __imp_<SYMBOL> as well.\n"));
330 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
331 unless user specifies one\n"));
332 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
333 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
334 an importlib, use <string><basename>.dll\n\
335 in preference to lib<basename>.dll \n"));
336 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\
337 __imp_sym for DATA references\n"));
338 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
339 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
340 adding pseudo-relocations resolved at\n\
342 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
343 auto-imported DATA.\n"));
344 fprintf (file, _(" --enable-extra-pe-debug Enable verbose debug output when building\n\
345 or linking to DLLs (esp. auto-import)\n"));
347 fprintf (file, _(" --large-address-aware Executable supports virtual addresses\n\
348 greater than 2 gigabytes\n"));
353 set_pe_name (char *name, long val)
357 /* Find the name and set it. */
358 for (i = 0; init[i].ptr; i++)
360 if (strcmp (name, init[i].symbol) == 0)
372 set_pe_subsystem (void)
385 { "native", 1, "NtProcessStartup" },
386 #if defined TARGET_IS_mipspe || defined TARGET_IS_armpe
387 { "windows", 2, "WinMainCRTStartup" },
389 { "windows", 2, "WinMainCRTStartup" },
391 { "console", 3, "mainCRTStartup" },
393 /* The Microsoft linker does not recognize this. */
396 { "posix", 7, "__PosixProcessStartup"},
397 { "wince", 9, "_WinMainCRTStartup" },
401 sver = strchr (optarg, ':');
403 len = strlen (optarg);
409 set_pe_name ("__major_subsystem_version__",
410 strtoul (sver + 1, &end, 0));
412 set_pe_name ("__minor_subsystem_version__",
413 strtoul (end + 1, &end, 0));
415 einfo (_("%P: warning: bad version number in -subsystem option\n"));
418 for (i = 0; v[i].name; i++)
420 if (strncmp (optarg, v[i].name, len) == 0
421 && v[i].name[len] == '\0')
423 const char *initial_symbol_char;
426 set_pe_name ("__subsystem__", v[i].value);
428 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
429 if (*initial_symbol_char == '\0')
435 /* lang_add_entry expects its argument to be permanently
436 allocated, so we don't free this string. */
437 alc_entry = xmalloc (strlen (initial_symbol_char)
438 + strlen (v[i].entry)
440 strcpy (alc_entry, initial_symbol_char);
441 strcat (alc_entry, v[i].entry);
445 lang_add_entry (entry, TRUE);
451 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
456 set_pe_value (char *name)
460 set_pe_name (name, strtoul (optarg, &end, 0));
463 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
470 set_pe_stack_heap (char *resname, char *comname)
472 set_pe_value (resname);
477 set_pe_value (comname);
480 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
485 gld${EMULATION_NAME}_handle_option (int optc)
492 case OPTION_BASE_FILE:
493 link_info.base_file = fopen (optarg, FOPEN_WB);
494 if (link_info.base_file == NULL)
496 /* xgettext:c-format */
497 fprintf (stderr, _("%s: Can't open base file %s\n"),
498 program_name, optarg);
505 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
508 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
510 case OPTION_SUBSYSTEM:
513 case OPTION_MAJOR_OS_VERSION:
514 set_pe_value ("__major_os_version__");
516 case OPTION_MINOR_OS_VERSION:
517 set_pe_value ("__minor_os_version__");
519 case OPTION_MAJOR_SUBSYSTEM_VERSION:
520 set_pe_value ("__major_subsystem_version__");
522 case OPTION_MINOR_SUBSYSTEM_VERSION:
523 set_pe_value ("__minor_subsystem_version__");
525 case OPTION_MAJOR_IMAGE_VERSION:
526 set_pe_value ("__major_image_version__");
528 case OPTION_MINOR_IMAGE_VERSION:
529 set_pe_value ("__minor_image_version__");
531 case OPTION_FILE_ALIGNMENT:
532 set_pe_value ("__file_alignment__");
534 case OPTION_SECTION_ALIGNMENT:
535 set_pe_value ("__section_alignment__");
538 set_pe_name ("__dll__", 1);
540 case OPTION_IMAGE_BASE:
541 set_pe_value ("__image_base__");
543 case OPTION_SUPPORT_OLD_CODE:
544 support_old_code = 1;
546 case OPTION_THUMB_ENTRY:
547 thumb_entry_symbol = optarg;
551 pe_out_def_filename = xstrdup (optarg);
553 case OPTION_EXPORT_ALL:
554 pe_dll_export_everything = 1;
556 case OPTION_EXCLUDE_SYMBOLS:
557 pe_dll_add_excludes (optarg, 0);
559 case OPTION_EXCLUDE_LIBS:
560 pe_dll_add_excludes (optarg, 1);
562 case OPTION_KILL_ATS:
565 case OPTION_STDCALL_ALIASES:
566 pe_dll_stdcall_aliases = 1;
568 case OPTION_ENABLE_STDCALL_FIXUP:
569 pe_enable_stdcall_fixup = 1;
571 case OPTION_DISABLE_STDCALL_FIXUP:
572 pe_enable_stdcall_fixup = 0;
574 case OPTION_IMPLIB_FILENAME:
575 pe_implib_filename = xstrdup (optarg);
577 case OPTION_WARN_DUPLICATE_EXPORTS:
578 pe_dll_warn_dup_exports = 1;
580 case OPTION_IMP_COMPAT:
581 pe_dll_compat_implib = 1;
583 case OPTION_ENABLE_AUTO_IMAGE_BASE:
584 pe_enable_auto_image_base = 1;
586 case OPTION_DISABLE_AUTO_IMAGE_BASE:
587 pe_enable_auto_image_base = 0;
589 case OPTION_DLL_SEARCH_PREFIX:
590 pe_dll_search_prefix = xstrdup (optarg);
592 case OPTION_NO_DEFAULT_EXCLUDES:
593 pe_dll_do_default_excludes = 0;
595 case OPTION_DLL_ENABLE_AUTO_IMPORT:
596 link_info.pei386_auto_import = 1;
598 case OPTION_DLL_DISABLE_AUTO_IMPORT:
599 link_info.pei386_auto_import = 0;
601 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
602 link_info.pei386_runtime_pseudo_reloc = 1;
604 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
605 link_info.pei386_runtime_pseudo_reloc = 0;
607 case OPTION_ENABLE_EXTRA_PE_DEBUG:
608 pe_dll_extra_pe_debug = 1;
611 case OPTION_LARGE_ADDRESS_AWARE:
612 real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
621 strhash (const char *str)
623 const unsigned char *s;
630 s = (const unsigned char *) str;
631 while ((c = *s++) != '\0')
633 hash += c + (c << 17);
637 hash += len + (len << 17);
643 /* Use the output file to create a image base for relocatable DLLs. */
646 compute_dll_image_base (const char *ofile)
648 unsigned long hash = strhash (ofile);
649 return 0x60000000 | ((hash << 16) & 0x0FFC0000);
653 /* Assign values to the special symbols before the linker script is
657 gld_${EMULATION_NAME}_set_symbols (void)
659 /* Run through and invent symbols for all the
660 names and insert the defaults. */
662 lang_statement_list_type *save;
664 if (!init[IMAGEBASEOFF].inited)
666 if (link_info.relocatable)
667 init[IMAGEBASEOFF].value = 0;
668 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
670 init[IMAGEBASEOFF].value = (pe_enable_auto_image_base) ?
671 compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
673 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
676 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
679 /* Don't do any symbol assignments if this is a relocatable link. */
680 if (link_info.relocatable)
683 /* Glue the assignments into the abs section. */
686 stat_ptr = &(abs_output_section->children);
688 for (j = 0; init[j].ptr; j++)
690 long val = init[j].value;
691 lang_assignment_statement_type *rv;
692 rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
694 if (init[j].size == sizeof (short))
695 *(short *) init[j].ptr = val;
696 else if (init[j].size == sizeof (int))
697 *(int *) init[j].ptr = val;
698 else if (init[j].size == sizeof (long))
699 *(long *) init[j].ptr = val;
700 /* This might be a long long or other special type. */
701 else if (init[j].size == sizeof (bfd_vma))
702 *(bfd_vma *) init[j].ptr = val;
704 if (j == IMAGEBASEOFF)
705 image_base_statement = rv;
707 /* Restore the pointer. */
710 if (pe.FileAlignment >
713 einfo (_("%P: warning, file alignment > section alignment.\n"));
717 /* This is called after the linker script and the command line options
721 gld_${EMULATION_NAME}_after_parse (void)
723 /* The Windows libraries are designed for the linker to treat the
724 entry point as an undefined symbol. Otherwise, the .obj that
725 defines mainCRTStartup is brought in because it is the first
726 encountered in libc.lib and it has other symbols in it which will
727 be pulled in by the link process. To avoid this, we act as
728 though the user specified -u with the entry point symbol.
730 This function is called after the linker script and command line
731 options have been read, so at this point we know the right entry
732 point. This function is called before the input files are
733 opened, so registering the symbol as undefined will make a
736 if (! link_info.relocatable && entry_symbol.name != NULL)
737 ldlang_add_undef (entry_symbol.name);
740 /* pe-dll.c directly accesses pe_data_import_dll,
741 so it must be defined outside of #ifdef DLL_SUPPORT.
742 Note - this variable is deliberately not initialised.
743 This allows it to be treated as a common varaible, and only
744 exist in one incarnation in a multiple target enabled linker. */
745 char * pe_data_import_dll;
748 static struct bfd_link_hash_entry *pe_undef_found_sym;
751 pe_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
756 sl = strlen (string);
757 if (h->type == bfd_link_hash_defined
758 && strncmp (h->root.string, string, sl) == 0
759 && h->root.string[sl] == '@')
761 pe_undef_found_sym = h;
768 pe_fixup_stdcalls (void)
770 static int gave_warning_message = 0;
771 struct bfd_link_hash_entry *undef, *sym;
773 if (pe_dll_extra_pe_debug)
774 printf ("%s\n", __FUNCTION__);
776 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
777 if (undef->type == bfd_link_hash_undefined)
779 char* at = strchr (undef->root.string, '@');
780 int lead_at = (*undef->root.string == '@');
781 /* For now, don't try to fixup fastcall symbols. */
785 /* The symbol is a stdcall symbol, so let's look for a
786 cdecl symbol with the same name and resolve to that. */
787 char *cname = xstrdup (undef->root.string /* + lead_at */);
788 at = strchr (cname, '@');
790 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
792 if (sym && sym->type == bfd_link_hash_defined)
794 undef->type = bfd_link_hash_defined;
795 undef->u.def.value = sym->u.def.value;
796 undef->u.def.section = sym->u.def.section;
798 if (pe_enable_stdcall_fixup == -1)
800 einfo (_("Warning: resolving %s by linking to %s\n"),
801 undef->root.string, cname);
802 if (! gave_warning_message)
804 gave_warning_message = 1;
805 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
806 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
813 /* The symbol is a cdecl symbol, so we look for stdcall
814 symbols - which means scanning the whole symbol table. */
815 pe_undef_found_sym = 0;
816 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
817 (char *) undef->root.string);
818 sym = pe_undef_found_sym;
821 undef->type = bfd_link_hash_defined;
822 undef->u.def.value = sym->u.def.value;
823 undef->u.def.section = sym->u.def.section;
825 if (pe_enable_stdcall_fixup == -1)
827 einfo (_("Warning: resolving %s by linking to %s\n"),
828 undef->root.string, sym->root.string);
829 if (! gave_warning_message)
831 gave_warning_message = 1;
832 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
833 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
842 make_import_fixup (arelent *rel, asection *s)
844 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
847 if (pe_dll_extra_pe_debug)
848 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
849 (long) rel->address, (long) rel->addend);
851 if (! bfd_get_section_contents (s->owner, s, addend, rel->address, sizeof (addend)))
852 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
853 s->owner, s, rel->address);
855 pe_create_import_fixup (rel, s, bfd_get_32 (s->owner, addend));
861 pe_find_data_imports (void)
863 struct bfd_link_hash_entry *undef, *sym;
865 if (link_info.pei386_auto_import == 0)
868 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
870 if (undef->type == bfd_link_hash_undefined)
872 /* C++ symbols are *long*. */
875 if (pe_dll_extra_pe_debug)
876 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
878 sprintf (buf, "__imp_%s", undef->root.string);
880 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
882 if (sym && sym->type == bfd_link_hash_defined)
884 bfd *b = sym->u.def.section->owner;
886 int nsyms, symsize, i;
888 if (link_info.pei386_auto_import == -1)
889 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
890 undef->root.string, buf);
892 symsize = bfd_get_symtab_upper_bound (b);
893 symbols = (asymbol **) xmalloc (symsize);
894 nsyms = bfd_canonicalize_symtab (b, symbols);
896 for (i = 0; i < nsyms; i++)
898 if (memcmp (symbols[i]->name, "__head_",
899 sizeof ("__head_") - 1))
902 if (pe_dll_extra_pe_debug)
903 printf ("->%s\n", symbols[i]->name);
905 pe_data_import_dll = (char*) (symbols[i]->name +
906 sizeof ("__head_") - 1);
910 pe_walk_relocs_of_symbol (&link_info, undef->root.string,
913 /* Let's differentiate it somehow from defined. */
914 undef->type = bfd_link_hash_defweak;
915 /* We replace original name with __imp_ prefixed, this
916 1) may trash memory 2) leads to duplicate symbol generation.
917 Still, IMHO it's better than having name poluted. */
918 undef->root.string = sym->root.string;
919 undef->u.def.value = sym->u.def.value;
920 undef->u.def.section = sym->u.def.section;
927 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
929 if (pe_dll_extra_pe_debug)
930 printf ("+%s\n", h->string);
934 #endif /* DLL_SUPPORT */
938 gld_${EMULATION_NAME}_after_open (void)
941 if (pe_dll_extra_pe_debug)
944 struct bfd_link_hash_entry *sym;
946 printf ("%s()\n", __FUNCTION__);
948 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
949 printf ("-%s\n", sym->root.string);
950 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
952 for (a = link_info.input_bfds; a; a = a->link_next)
953 printf ("*%s\n",a->filename);
957 /* Pass the wacky PE command line options into the output bfd.
958 FIXME: This should be done via a function, rather than by
959 including an internal BFD header. */
961 if (coff_data (output_bfd) == NULL || coff_data (output_bfd)->pe == 0)
962 einfo (_("%F%P: PE operations on non PE file.\n"));
964 pe_data (output_bfd)->pe_opthdr = pe;
965 pe_data (output_bfd)->dll = init[DLLOFF].value;
966 pe_data (output_bfd)->real_flags |= real_flags;
969 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
970 pe_fixup_stdcalls ();
972 pe_process_import_defs (output_bfd, & link_info);
974 pe_find_data_imports ();
976 #if ! (defined (TARGET_IS_i386pe) || defined (TARGET_IS_armpe))
977 if (link_info.shared)
979 if (!link_info.relocatable)
981 pe_dll_build_sections (output_bfd, &link_info);
983 #ifndef TARGET_IS_i386pe
984 #ifndef TARGET_IS_armpe
986 pe_exe_build_sections (output_bfd, &link_info);
991 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
992 if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
994 /* The arm backend needs special fields in the output hash structure.
995 These will only be created if the output format is an arm format,
996 hence we do not support linking and changing output formats at the
997 same time. Use a link followed by objcopy to change output formats. */
998 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
1002 /* Find a BFD that can hold the interworking stubs. */
1003 LANG_FOR_EACH_INPUT_STATEMENT (is)
1005 if (bfd_arm_pe_get_bfd_for_interworking (is->the_bfd, & link_info))
1012 /* This next chunk of code tries to detect the case where you have
1013 two import libraries for the same DLL (specifically,
1014 symbolically linking libm.a and libc.a in cygwin to
1015 libcygwin.a). In those cases, it's possible for function
1016 thunks from the second implib to be used but without the
1017 head/tail objects, causing an improper import table. We detect
1018 those cases and rename the "other" import libraries to match
1019 the one the head/tail come from, so that the linker will sort
1020 things nicely and produce a valid import table. */
1022 LANG_FOR_EACH_INPUT_STATEMENT (is)
1024 if (is->the_bfd->my_archive)
1026 int idata2 = 0, reloc_count=0, is_imp = 0;
1029 /* See if this is an import library thunk. */
1030 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1032 if (strcmp (sec->name, ".idata\$2") == 0)
1034 if (strncmp (sec->name, ".idata\$", 7) == 0)
1036 reloc_count += sec->reloc_count;
1039 if (is_imp && !idata2 && reloc_count)
1041 /* It is, look for the reference to head and see if it's
1042 from our own library. */
1043 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1052 symsize = bfd_get_symtab_upper_bound (is->the_bfd);
1055 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1059 symbols = (asymbol **) xmalloc (symsize);
1060 symsize = bfd_canonicalize_symtab (is->the_bfd, symbols);
1063 einfo ("%X%P: unable to process symbols: %E");
1067 relocs = (arelent **) xmalloc ((size_t) relsize);
1068 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1073 einfo ("%X%P: unable to process relocs: %E");
1077 for (i = 0; i < nrelocs; i++)
1079 struct bfd_symbol *s;
1080 struct bfd_link_hash_entry * blhe;
1084 s = (relocs[i]->sym_ptr_ptr)[0];
1086 if (s->flags & BSF_LOCAL)
1089 /* Thunk section with reloc to another bfd. */
1090 blhe = bfd_link_hash_lookup (link_info.hash,
1092 FALSE, FALSE, TRUE);
1095 || blhe->type != bfd_link_hash_defined)
1098 other_bfd = blhe->u.def.section->owner;
1099 #define bfd_filename(bfd) ((bfd)->my_archive ? bfd_get_filename ((bfd)->my_archive) : bfd_get_filename (bfd))
1101 if (strcmp (bfd_filename (is->the_bfd),
1102 bfd_filename (other_bfd)) == 0)
1105 /* Rename this implib to match the other one. */
1106 n = xmalloc (strlen (bfd_filename (other_bfd)) + 1);
1108 strcpy (n, bfd_filename (other_bfd));
1110 bfd_filename (is->the_bfd) = n;
1115 /* Note - we do not free the symbols,
1116 they are now cached in the BFD. */
1126 lang_input_statement_type *is2;
1127 lang_input_statement_type *is3;
1129 /* Careful - this is a shell script. Watch those dollar signs! */
1130 /* Microsoft import libraries have every member named the same,
1131 and not in the right order for us to link them correctly. We
1132 must detect these and rename the members so that they'll link
1133 correctly. There are three types of objects: the head, the
1134 thunks, and the sentinel(s). The head is easy; it's the one
1135 with idata2. We assume that the sentinels won't have relocs,
1136 and the thunks will. It's easier than checking the symbol
1137 table for external references. */
1138 LANG_FOR_EACH_INPUT_STATEMENT (is)
1140 if (is->the_bfd->my_archive)
1143 bfd *arch = is->the_bfd->my_archive;
1145 if (cur_arch != arch)
1151 is3 && is3->the_bfd->my_archive == arch;
1152 is3 = (lang_input_statement_type *) is3->next)
1154 /* A MS dynamic import library can also contain static
1155 members, so look for the first element with a .dll
1156 extension, and use that for the remainder of the
1158 pnt = strrchr (is3->the_bfd->filename, '.');
1159 if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1167 /* OK, found one. Now look to see if the remaining
1168 (dynamic import) members use the same name. */
1170 is2 && is2->the_bfd->my_archive == arch;
1171 is2 = (lang_input_statement_type *) is2->next)
1173 /* Skip static members, ie anything with a .obj
1175 pnt = strrchr (is2->the_bfd->filename, '.');
1176 if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1179 if (strcmp (is3->the_bfd->filename,
1180 is2->the_bfd->filename))
1189 /* This fragment might have come from an .obj file in a Microsoft
1190 import, and not an actual import record. If this is the case,
1191 then leave the filename alone. */
1192 pnt = strrchr (is->the_bfd->filename, '.');
1194 if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1196 int idata2 = 0, reloc_count=0;
1198 char *new_name, seq;
1200 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1202 if (strcmp (sec->name, ".idata\$2") == 0)
1204 reloc_count += sec->reloc_count;
1207 if (idata2) /* .idata2 is the TOC */
1209 else if (reloc_count > 0) /* thunks */
1214 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1215 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1216 is->the_bfd->filename = new_name;
1218 new_name = xmalloc (strlen (is->filename) + 3);
1219 sprintf (new_name, "%s.%c", is->filename, seq);
1220 is->filename = new_name;
1228 gld_${EMULATION_NAME}_before_allocation (void)
1230 #ifdef TARGET_IS_ppcpe
1231 /* Here we rummage through the found bfds to collect toc information. */
1233 LANG_FOR_EACH_INPUT_STATEMENT (is)
1235 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
1237 /* xgettext:c-format */
1238 einfo (_("Errors encountered processing file %s\n"), is->filename);
1243 /* We have seen it all. Allocate it, and carry on. */
1244 ppc_allocate_toc_section (&link_info);
1245 #endif /* TARGET_IS_ppcpe */
1247 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
1248 /* FIXME: we should be able to set the size of the interworking stub
1251 Here we rummage through the found bfds to collect glue
1252 information. FIXME: should this be based on a command line
1253 option? krk@cygnus.com. */
1255 LANG_FOR_EACH_INPUT_STATEMENT (is)
1257 if (! bfd_arm_pe_process_before_allocation
1258 (is->the_bfd, & link_info, support_old_code))
1260 /* xgettext:c-format */
1261 einfo (_("Errors encountered processing file %s for interworking"),
1267 /* We have seen it all. Allocate it, and carry on. */
1268 bfd_arm_pe_allocate_interworking_sections (& link_info);
1269 #endif /* TARGET_IS_armpe */
1273 /* This is called when an input file isn't recognized as a BFD. We
1274 check here for .DEF files and pull them in automatically. */
1277 saw_option (char *option)
1281 for (i = 0; init[i].ptr; i++)
1282 if (strcmp (init[i].symbol, option) == 0)
1283 return init[i].inited;
1286 #endif /* DLL_SUPPORT */
1289 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1292 const char *ext = entry->filename + strlen (entry->filename) - 4;
1294 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1296 pe_def_file = def_file_parse (entry->filename, pe_def_file);
1300 int i, buflen=0, len;
1303 for (i = 0; i < pe_def_file->num_exports; i++)
1305 len = strlen (pe_def_file->exports[i].internal_name);
1306 if (buflen < len + 2)
1310 buf = (char *) xmalloc (buflen);
1312 for (i = 0; i < pe_def_file->num_exports; i++)
1314 struct bfd_link_hash_entry *h;
1316 sprintf (buf, "_%s", pe_def_file->exports[i].internal_name);
1318 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1319 if (h == (struct bfd_link_hash_entry *) NULL)
1320 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1321 if (h->type == bfd_link_hash_new)
1323 h->type = bfd_link_hash_undefined;
1324 h->u.undef.abfd = NULL;
1325 bfd_link_add_undef (link_info.hash, h);
1330 /* def_file_print (stdout, pe_def_file); */
1331 if (pe_def_file->is_dll == 1)
1332 link_info.shared = 1;
1334 if (pe_def_file->base_address != (bfd_vma)(-1))
1337 pe_data (output_bfd)->pe_opthdr.ImageBase =
1338 init[IMAGEBASEOFF].value = pe_def_file->base_address;
1339 init[IMAGEBASEOFF].inited = 1;
1340 if (image_base_statement)
1341 image_base_statement->exp =
1342 exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase));
1346 /* Not sure if these *should* be set. */
1347 if (pe_def_file->version_major != -1)
1349 pe.MajorImageVersion = pe_def_file->version_major;
1350 pe.MinorImageVersion = pe_def_file->version_minor;
1353 if (pe_def_file->stack_reserve != -1
1354 && ! saw_option ("__size_of_stack_reserve__"))
1356 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
1357 if (pe_def_file->stack_commit != -1)
1358 pe.SizeOfStackCommit = pe_def_file->stack_commit;
1360 if (pe_def_file->heap_reserve != -1
1361 && ! saw_option ("__size_of_heap_reserve__"))
1363 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
1364 if (pe_def_file->heap_commit != -1)
1365 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
1375 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1378 #ifdef TARGET_IS_i386pe
1379 pe_dll_id_target ("pei-i386");
1381 #ifdef TARGET_IS_shpe
1382 pe_dll_id_target ("pei-shl");
1384 #ifdef TARGET_IS_mipspe
1385 pe_dll_id_target ("pei-mips");
1387 #ifdef TARGET_IS_armpe
1388 pe_dll_id_target ("pei-arm-little");
1390 if (bfd_get_format (entry->the_bfd) == bfd_object)
1392 char fbuf[LD_PATHMAX + 1];
1395 if (REALPATH (entry->filename, fbuf) == NULL)
1396 strncpy (fbuf, entry->filename, sizeof (fbuf));
1398 ext = fbuf + strlen (fbuf) - 4;
1400 if (strcmp (ext, ".dll") == 0 || strcmp (ext, ".DLL") == 0)
1401 return pe_implied_import_dll (fbuf);
1408 gld_${EMULATION_NAME}_finish (void)
1410 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
1411 struct bfd_link_hash_entry * h;
1413 if (thumb_entry_symbol != NULL)
1415 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol,
1416 FALSE, FALSE, TRUE);
1418 if (h != (struct bfd_link_hash_entry *) NULL
1419 && (h->type == bfd_link_hash_defined
1420 || h->type == bfd_link_hash_defweak)
1421 && h->u.def.section->output_section != NULL)
1423 static char buffer[32];
1426 /* Special procesing is required for a Thumb entry symbol. The
1427 bottom bit of its address must be set. */
1428 val = (h->u.def.value
1429 + bfd_get_section_vma (output_bfd,
1430 h->u.def.section->output_section)
1431 + h->u.def.section->output_offset);
1435 /* Now convert this value into a string and store it in entry_symbol
1436 where the lang_finish() function will pick it up. */
1440 sprintf_vma (buffer + 2, val);
1442 if (entry_symbol.name != NULL && entry_from_cmdline)
1443 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
1444 thumb_entry_symbol, entry_symbol.name);
1445 entry_symbol.name = buffer;
1448 einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol);
1450 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) */
1453 if (link_info.shared
1454 #if !defined(TARGET_IS_shpe) && !defined(TARGET_IS_mipspe)
1455 || (!link_info.relocatable && pe_def_file->num_exports != 0)
1459 pe_dll_fill_sections (output_bfd, &link_info);
1460 if (pe_implib_filename)
1461 pe_dll_generate_implib (pe_def_file, pe_implib_filename);
1463 #if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
1464 /* ARM doesn't need relocs. */
1467 pe_exe_fill_sections (output_bfd, &link_info);
1471 if (pe_out_def_filename)
1472 pe_dll_generate_def_file (pe_out_def_filename);
1473 #endif /* DLL_SUPPORT */
1475 /* I don't know where .idata gets set as code, but it shouldn't be. */
1477 asection *asec = bfd_get_section_by_name (output_bfd, ".idata");
1481 asec->flags &= ~SEC_CODE;
1482 asec->flags |= SEC_DATA;
1488 /* Find the last output section before given output statement.
1489 Used by place_orphan. */
1492 output_prev_sec_find (lang_output_section_statement_type *os)
1494 asection *s = (asection *) NULL;
1495 lang_statement_union_type *u;
1496 lang_output_section_statement_type *lookup;
1498 for (u = lang_output_section_statement.head;
1499 u != (lang_statement_union_type *) NULL;
1502 lookup = &u->output_section_statement;
1503 if (lookup->constraint == -1)
1508 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
1509 s = lookup->bfd_section;
1515 /* Place an orphan section.
1517 We use this to put sections in a reasonable place in the file, and
1518 to ensure that they are aligned as required.
1520 We handle grouped sections here as well. A section named .foo$nn
1521 goes into the output section .foo. All grouped sections are sorted
1524 Grouped sections for the default sections are handled by the
1525 default linker script using wildcards, and are sorted by
1530 lang_output_section_statement_type *os;
1532 lang_statement_union_type **stmt;
1536 gld_${EMULATION_NAME}_place_orphan (lang_input_statement_type *file, asection *s)
1538 const char *secname;
1539 char *hold_section_name;
1540 char *dollar = NULL;
1541 const char *ps = NULL;
1542 lang_output_section_statement_type *os;
1543 lang_statement_list_type add_child;
1545 secname = bfd_get_section_name (s->owner, s);
1547 /* Look through the script to see where to place this section. */
1548 hold_section_name = xstrdup (secname);
1549 if (!link_info.relocatable)
1551 dollar = strchr (hold_section_name, '$');
1556 os = lang_output_section_find (hold_section_name);
1558 lang_list_init (&add_child);
1561 && (os->bfd_section == NULL
1562 || ((s->flags ^ os->bfd_section->flags)
1563 & (SEC_LOAD | SEC_ALLOC)) == 0))
1565 /* We already have an output section statement with this
1566 name, and its bfd section, if any, has compatible flags. */
1567 lang_add_section (&add_child, s, os, file);
1571 struct orphan_save *place;
1572 static struct orphan_save hold_text;
1573 static struct orphan_save hold_rdata;
1574 static struct orphan_save hold_data;
1575 static struct orphan_save hold_bss;
1577 lang_statement_list_type *old;
1578 lang_statement_list_type add;
1579 etree_type *address;
1581 /* Try to put the new output section in a reasonable place based
1582 on the section name and section flags. */
1583 #define HAVE_SECTION(hold, name) \
1584 (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1587 if ((s->flags & SEC_ALLOC) == 0)
1589 else if ((s->flags & SEC_HAS_CONTENTS) == 0
1590 && HAVE_SECTION (hold_bss, ".bss"))
1592 else if ((s->flags & SEC_READONLY) == 0
1593 && HAVE_SECTION (hold_data, ".data"))
1595 else if ((s->flags & SEC_CODE) == 0
1596 && (s->flags & SEC_READONLY) != 0
1597 && HAVE_SECTION (hold_rdata, ".rdata"))
1598 place = &hold_rdata;
1599 else if ((s->flags & SEC_READONLY) != 0
1600 && HAVE_SECTION (hold_text, ".text"))
1605 /* Choose a unique name for the section. This will be needed if
1606 the same section name appears in the input file with
1607 different loadable or allocatable characteristics. */
1608 outsecname = xstrdup (hold_section_name);
1609 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1615 len = strlen (outsecname);
1616 newname = xmalloc (len + 5);
1617 strcpy (newname, outsecname);
1621 sprintf (newname + len, "%d", i);
1624 while (bfd_get_section_by_name (output_bfd, newname) != NULL);
1627 outsecname = newname;
1630 /* Start building a list of statements for this section. */
1633 lang_list_init (stat_ptr);
1635 if (config.build_constructors)
1637 /* If the name of the section is representable in C, then create
1638 symbols to mark the start and the end of the section. */
1639 for (ps = outsecname; *ps != '\0'; ps++)
1640 if (! ISALNUM ((unsigned char) *ps) && *ps != '_')
1645 etree_type *e_align;
1647 symname = (char *) xmalloc (ps - outsecname + sizeof "___start_");
1648 sprintf (symname, "___start_%s", outsecname);
1649 e_align = exp_unop (ALIGN_K,
1650 exp_intop ((bfd_vma) 1 << s->alignment_power));
1651 lang_add_assignment (exp_assop ('=', symname, e_align));
1655 if (link_info.relocatable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
1656 address = exp_intop ((bfd_vma) 0);
1659 /* All sections in an executable must be aligned to a page
1661 address = exp_unop (ALIGN_K,
1662 exp_nameop (NAME, "__section_alignment__"));
1665 os = lang_enter_output_section_statement (outsecname, address, 0,
1666 (etree_type *) NULL,
1667 (etree_type *) NULL,
1668 (etree_type *) NULL, 0);
1670 lang_add_section (&add_child, s, os, file);
1672 lang_leave_output_section_statement
1673 ((bfd_vma) 0, "*default*",
1674 (struct lang_output_section_phdr_list *) NULL, NULL);
1676 if (config.build_constructors && *ps == '\0')
1680 /* lang_leave_ouput_section_statement resets stat_ptr.
1681 Put stat_ptr back where we want it. */
1685 symname = (char *) xmalloc (ps - outsecname + sizeof "___stop_");
1686 sprintf (symname, "___stop_%s", outsecname);
1687 lang_add_assignment (exp_assop ('=', symname,
1688 exp_nameop (NAME, ".")));
1693 if (place != NULL && os->bfd_section != NULL)
1695 asection *snew, **pps;
1697 snew = os->bfd_section;
1699 /* Shuffle the bfd section list to make the output file look
1700 neater. This is really only cosmetic. */
1701 if (place->section == NULL)
1703 asection *bfd_section = place->os->bfd_section;
1705 /* If the output statement hasn't been used to place
1706 any input sections (and thus doesn't have an output
1707 bfd_section), look for the closest prior output statement
1708 having an output section. */
1709 if (bfd_section == NULL)
1710 bfd_section = output_prev_sec_find (place->os);
1712 if (bfd_section != NULL && bfd_section != snew)
1713 place->section = &bfd_section->next;
1716 if (place->section != NULL)
1718 /* Unlink the section. */
1719 for (pps = &output_bfd->sections;
1721 pps = &(*pps)->next)
1723 bfd_section_list_remove (output_bfd, pps);
1725 /* Now tack it on to the "place->os" section list. */
1726 bfd_section_list_insert (output_bfd, place->section, snew);
1729 /* Save the end of this list. Further ophans of this type will
1730 follow the one we've just added. */
1731 place->section = &snew->next;
1733 /* The following is non-cosmetic. We try to put the output
1734 statements in some sort of reasonable order here, because
1735 they determine the final load addresses of the orphan
1736 sections. In addition, placing output statements in the
1737 wrong order may require extra segments. For instance,
1738 given a typical situation of all read-only sections placed
1739 in one segment and following that a segment containing all
1740 the read-write sections, we wouldn't want to place an orphan
1741 read/write section before or amongst the read-only ones. */
1742 if (add.head != NULL)
1744 if (place->stmt == NULL)
1746 /* Put the new statement list right at the head. */
1747 *add.tail = place->os->header.next;
1748 place->os->header.next = add.head;
1752 /* Put it after the last orphan statement we added. */
1753 *add.tail = *place->stmt;
1754 *place->stmt = add.head;
1757 /* Fix the global list pointer if we happened to tack our
1758 new list at the tail. */
1759 if (*old->tail == add.head)
1760 old->tail = add.tail;
1762 /* Save the end of this list. */
1763 place->stmt = add.tail;
1769 lang_statement_union_type **pl = &os->children.head;
1773 bfd_boolean found_dollar;
1775 /* The section name has a '$'. Sort it with the other '$'
1777 found_dollar = FALSE;
1778 for ( ; *pl != NULL; pl = &(*pl)->header.next)
1780 lang_input_section_type *ls;
1783 if ((*pl)->header.type != lang_input_section_enum)
1786 ls = &(*pl)->input_section;
1788 lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section);
1789 if (strchr (lname, '$') == NULL)
1796 found_dollar = TRUE;
1797 if (strcmp (secname, lname) < 0)
1803 if (add_child.head != NULL)
1805 add_child.head->header.next = *pl;
1806 *pl = add_child.head;
1810 free (hold_section_name);
1816 gld_${EMULATION_NAME}_open_dynamic_archive
1817 (const char *arch ATTRIBUTE_UNUSED, search_dirs_type *search,
1818 lang_input_statement_type *entry)
1820 const char * filename;
1823 if (! entry->is_archive)
1826 filename = entry->filename;
1828 string = (char *) xmalloc (strlen (search->name)
1830 + sizeof "/lib.a.dll"
1832 + (pe_dll_search_prefix ? strlen (pe_dll_search_prefix) : 0)
1836 /* Try "libfoo.dll.a" first (preferred explicit import library for dll's. */
1837 sprintf (string, "%s/lib%s.dll.a", search->name, filename);
1839 if (! ldfile_try_open_bfd (string, entry))
1841 /* Try "foo.dll.a" next (alternate explicit import library for dll's. */
1842 sprintf (string, "%s/%s.dll.a", search->name, filename);
1843 if (! ldfile_try_open_bfd (string, entry))
1845 /* Try libfoo.a next. Normally, this would be interpreted as a static
1846 library, but it *could* be an import library. For backwards compatibility,
1847 libfoo.a needs to ==precede== libfoo.dll and foo.dll in the search,
1848 or sometimes errors occur when building legacy packages.
1850 Putting libfoo.a here means that in a failure case (i.e. the library
1851 -lfoo is not found) we will search for libfoo.a twice before
1852 giving up -- once here, and once when searching for a "static" lib.
1853 for a "static" lib. */
1854 /* Try "libfoo.a" (import lib, or static lib, but must
1855 take precedence over dll's). */
1856 sprintf (string, "%s/lib%s.a", search->name, filename);
1857 if (! ldfile_try_open_bfd (string, entry))
1860 if (pe_dll_search_prefix)
1862 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1863 sprintf (string, "%s/%s%s.dll", search->name, pe_dll_search_prefix, filename);
1864 if (! ldfile_try_open_bfd (string, entry))
1866 /* Try "libfoo.dll" (default preferred dll name). */
1867 sprintf (string, "%s/lib%s.dll", search->name, filename);
1868 if (! ldfile_try_open_bfd (string, entry))
1870 /* Finally, try "foo.dll" (alternate dll name). */
1871 sprintf (string, "%s/%s.dll", search->name, filename);
1872 if (! ldfile_try_open_bfd (string, entry))
1880 else /* pe_dll_search_prefix not specified. */
1883 /* Try "libfoo.dll" (preferred dll name). */
1884 sprintf (string, "%s/lib%s.dll", search->name, filename);
1885 if (! ldfile_try_open_bfd (string, entry))
1887 /* Finally, try "foo.dll" (alternate dll name). */
1888 sprintf (string, "%s/%s.dll", search->name, filename);
1889 if (! ldfile_try_open_bfd (string, entry))
1900 entry->filename = string;
1906 gld_${EMULATION_NAME}_find_potential_libraries
1907 (char *name, lang_input_statement_type *entry)
1909 return ldfile_open_file_search (name, entry, "", ".lib");
1913 gld_${EMULATION_NAME}_get_script (int *isfile)
1915 # Scripts compiled in.
1916 # sed commands to quote an ld script as a C string.
1917 sc="-f stringify.sed"
1919 cat >>e${EMULATION_NAME}.c <<EOF
1923 if (link_info.relocatable && config.build_constructors)
1926 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1927 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1928 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1929 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1930 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1931 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1932 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1933 echo ' ; else return' >> e${EMULATION_NAME}.c
1934 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1935 echo '; }' >> e${EMULATION_NAME}.c
1937 cat >>e${EMULATION_NAME}.c <<EOF
1940 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1942 gld_${EMULATION_NAME}_before_parse,
1945 gld_${EMULATION_NAME}_after_parse,
1946 gld_${EMULATION_NAME}_after_open,
1947 after_allocation_default,
1948 set_output_arch_default,
1949 ldemul_default_target,
1950 gld_${EMULATION_NAME}_before_allocation,
1951 gld_${EMULATION_NAME}_get_script,
1952 "${EMULATION_NAME}",
1954 gld_${EMULATION_NAME}_finish,
1955 NULL, /* Create output section statements. */
1956 gld_${EMULATION_NAME}_open_dynamic_archive,
1957 gld_${EMULATION_NAME}_place_orphan,
1958 gld_${EMULATION_NAME}_set_symbols,
1959 NULL, /* parse_args */
1960 gld${EMULATION_NAME}_add_options,
1961 gld${EMULATION_NAME}_handle_option,
1962 gld_${EMULATION_NAME}_unrecognized_file,
1963 gld_${EMULATION_NAME}_list_options,
1964 gld_${EMULATION_NAME}_recognized_file,
1965 gld_${EMULATION_NAME}_find_potential_libraries,
1966 NULL /* new_vers_pattern. */