1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 test -z "${ENTRY}" && ENTRY="_mainCRTStartup"
4 if [ -z "$MACHINE" ]; then
7 OUTPUT_ARCH=${ARCH}:${MACHINE}
9 rm -f e${EMULATION_NAME}.c
10 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
12 /* Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
13 Written by Kai Tietz, OneVision Software GmbH&CoKg.
15 This file is part of the GNU Binutils.
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 3 of the License, or
20 (at your option) any later version.
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
30 MA 02110-1301, USA. */
33 /* For WINDOWS_XP64 and higher */
34 /* Based on pe.em, but modified for 64 bit support. */
36 #define TARGET_IS_${EMULATION_NAME}
38 #define COFF_IMAGE_WITH_PE
40 #define COFF_WITH_pex64
46 #include "libiberty.h"
57 #include "coff/internal.h"
59 /* FIXME: See bfd/peXXigen.c for why we include an architecture specific
60 header in generic PE code. */
61 #include "coff/x86_64.h"
64 /* FIXME: This is a BFD internal header file, and we should not be
66 #include "../bfd/libcoff.h"
69 #define AOUTSZ PEPAOUTSZ
70 #define PEAOUTHDR PEPAOUTHDR
74 #include "safe-ctype.h"
76 /* Permit the emulation parameters to override the default section
77 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
78 it seem that include/coff/internal.h should not define
79 PE_DEF_SECTION_ALIGNMENT. */
80 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
81 #undef PE_DEF_SECTION_ALIGNMENT
82 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
85 #ifdef TARGET_IS_i386pep
89 #if defined(TARGET_IS_i386pep) || ! defined(DLL_SUPPORT)
90 #define PE_DEF_SUBSYSTEM 3
92 #undef NT_EXE_IMAGE_BASE
93 #define NT_EXE_IMAGE_BASE 0x00010000
94 #undef PE_DEF_SECTION_ALIGNMENT
95 #define PE_DEF_SUBSYSTEM 2
96 #undef PE_DEF_FILE_ALIGNMENT
97 #define PE_DEF_FILE_ALIGNMENT 0x00000200
98 #define PE_DEF_SECTION_ALIGNMENT 0x00000400
102 static struct internal_extra_pe_aouthdr pep;
104 static flagword real_flags = IMAGE_FILE_LARGE_ADDRESS_AWARE;
105 static int support_old_code = 0;
106 static lang_assignment_statement_type *image_base_statement = 0;
109 static int pep_enable_stdcall_fixup = 1; /* 0=disable 1=enable (default). */
110 static char * pep_out_def_filename = NULL;
111 static char * pep_implib_filename = NULL;
112 static int pep_enable_auto_image_base = 0;
113 static char * pep_dll_search_prefix = NULL;
116 extern const char *output_filename;
119 gld_${EMULATION_NAME}_before_parse (void)
121 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
122 output_filename = "${EXECUTABLE_NAME:-a.exe}";
124 config.dynamic_link = TRUE;
125 config.has_shared = 1;
126 link_info.pei386_auto_import = -1;
127 link_info.pei386_runtime_pseudo_reloc = 2; /* Use by default version 2. */
129 #if (PE_DEF_SUBSYSTEM == 9) || (PE_DEF_SUBSYSTEM == 2)
130 lang_default_entry ("_WinMainCRTStartup");
132 lang_default_entry ("${ENTRY}");
137 /* PE format extra command line options. */
139 /* Used for setting flags in the PE header. */
142 OPTION_BASE_FILE = 300 + 1,
144 OPTION_FILE_ALIGNMENT,
146 OPTION_MAJOR_IMAGE_VERSION,
147 OPTION_MAJOR_OS_VERSION,
148 OPTION_MAJOR_SUBSYSTEM_VERSION,
149 OPTION_MINOR_IMAGE_VERSION,
150 OPTION_MINOR_OS_VERSION,
151 OPTION_MINOR_SUBSYSTEM_VERSION,
152 OPTION_SECTION_ALIGNMENT,
156 OPTION_SUPPORT_OLD_CODE,
159 OPTION_EXCLUDE_SYMBOLS,
161 OPTION_STDCALL_ALIASES,
162 OPTION_ENABLE_STDCALL_FIXUP,
163 OPTION_DISABLE_STDCALL_FIXUP,
164 OPTION_IMPLIB_FILENAME,
165 OPTION_WARN_DUPLICATE_EXPORTS,
167 OPTION_ENABLE_AUTO_IMAGE_BASE,
168 OPTION_DISABLE_AUTO_IMAGE_BASE,
169 OPTION_DLL_SEARCH_PREFIX,
170 OPTION_NO_DEFAULT_EXCLUDES,
171 OPTION_DLL_ENABLE_AUTO_IMPORT,
172 OPTION_DLL_DISABLE_AUTO_IMPORT,
173 OPTION_ENABLE_EXTRA_PE_DEBUG,
175 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
176 OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
177 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1,
178 OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
179 OPTION_EXCLUDE_MODULES_FOR_IMPLIB,
180 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES
184 gld${EMULATION_NAME}_add_options
185 (int ns ATTRIBUTE_UNUSED,
186 char **shortopts ATTRIBUTE_UNUSED,
188 struct option **longopts,
189 int nrl ATTRIBUTE_UNUSED,
190 struct option **really_longopts ATTRIBUTE_UNUSED)
192 static const struct option xtra_long[] =
195 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
196 {"dll", no_argument, NULL, OPTION_DLL},
197 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
198 {"heap", required_argument, NULL, OPTION_HEAP},
199 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
200 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
201 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
202 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
203 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
204 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
205 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
206 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
207 {"stack", required_argument, NULL, OPTION_STACK},
208 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
209 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
210 {"use-nul-prefixed-import-tables", no_argument, NULL,
211 OPTION_USE_NUL_PREFIXED_IMPORT_TABLES},
213 /* getopt allows abbreviations, so we do this to stop it
214 from treating -o as an abbreviation for this option. */
215 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
216 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
217 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
218 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
219 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
220 {"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
221 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
222 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
223 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
224 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
225 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
226 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
227 /* getopt() allows abbreviations, so we do this to stop it from
228 treating -c as an abbreviation for these --compat-implib. */
229 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
230 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
231 {"enable-auto-image-base", no_argument, NULL, OPTION_ENABLE_AUTO_IMAGE_BASE},
232 {"disable-auto-image-base", no_argument, NULL, OPTION_DISABLE_AUTO_IMAGE_BASE},
233 {"dll-search-prefix", required_argument, NULL, OPTION_DLL_SEARCH_PREFIX},
234 {"no-default-excludes", no_argument, NULL, OPTION_NO_DEFAULT_EXCLUDES},
235 {"enable-auto-import", no_argument, NULL, OPTION_DLL_ENABLE_AUTO_IMPORT},
236 {"disable-auto-import", no_argument, NULL, OPTION_DLL_DISABLE_AUTO_IMPORT},
237 {"enable-extra-pep-debug", no_argument, NULL, OPTION_ENABLE_EXTRA_PE_DEBUG},
238 {"enable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC},
239 {"disable-runtime-pseudo-reloc", no_argument, NULL, OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC},
240 {"enable-runtime-pseudo-reloc-v1", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1},
241 {"enable-runtime-pseudo-reloc-v2", no_argument, NULL, OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2},
243 {NULL, no_argument, NULL, 0}
246 *longopts = xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
247 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
250 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
251 parameters which may be input from the command line. */
262 #define D(field,symbol,def) {&pep.field,sizeof(pep.field), def, symbol,0}
264 static definfo init[] =
266 /* imagebase must be first */
267 #define IMAGEBASEOFF 0
268 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
270 {&dll, sizeof(dll), 0, "__dll__", 0},
271 #define MSIMAGEBASEOFF 2
272 D(ImageBase,"___ImageBase", NT_EXE_IMAGE_BASE),
273 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
274 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
275 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
276 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
277 D(MajorImageVersion,"__major_image_version__", 0),
278 D(MinorImageVersion,"__minor_image_version__", 0),
279 D(MajorSubsystemVersion,"__major_subsystem_version__", 5),
280 D(MinorSubsystemVersion,"__minor_subsystem_version__", 2),
281 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
282 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x200000),
283 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
284 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
285 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
286 D(LoaderFlags,"__loader_flags__", 0x0),
287 { NULL, 0, 0, NULL, 0 }
292 gld_${EMULATION_NAME}_list_options (FILE *file)
294 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
295 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
296 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
297 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
298 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
299 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
300 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
301 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
302 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
303 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
304 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
305 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
306 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
307 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
308 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
310 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
311 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
312 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
313 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
314 fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
315 fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
316 fprintf (file, _(" Exclude objects, archive members from auto\n"));
317 fprintf (file, _(" export, place into import library instead.\n"));
318 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
319 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
320 fprintf (file, _(" --out-implib <file> Generate import library\n"));
321 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
322 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
323 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n\
324 create __imp_<SYMBOL> as well.\n"));
325 fprintf (file, _(" --enable-auto-image-base Automatically choose image base for DLLs\n\
326 unless user specifies one\n"));
327 fprintf (file, _(" --disable-auto-image-base Do not auto-choose image base. (default)\n"));
328 fprintf (file, _(" --dll-search-prefix=<string> When linking dynamically to a dll without\n\
329 an importlib, use <string><basename>.dll\n\
330 in preference to lib<basename>.dll \n"));
331 fprintf (file, _(" --enable-auto-import Do sophistcated linking of _sym to\n\
332 __imp_sym for DATA references\n"));
333 fprintf (file, _(" --disable-auto-import Do not auto-import DATA items from DLLs\n"));
334 fprintf (file, _(" --enable-runtime-pseudo-reloc Work around auto-import limitations by\n\
335 adding pseudo-relocations resolved at\n\
337 fprintf (file, _(" --disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for\n\
338 auto-imported DATA.\n"));
339 fprintf (file, _(" --enable-extra-pep-debug Enable verbose debug output when building\n\
340 or linking to DLLs (esp. auto-import)\n"));
346 set_pep_name (char *name, bfd_vma val)
350 /* Find the name and set it. */
351 for (i = 0; init[i].ptr; i++)
353 if (strcmp (name, init[i].symbol) == 0)
357 if (strcmp (name,"__image_base__") == 0)
358 set_pep_name ("___ImageBase", val);
367 set_pep_subsystem (void)
371 const char *initial_symbol_char;
376 unsigned long temp_subsystem;
385 { "native", 1, "NtProcessStartup" },
386 { "windows", 2, "WinMainCRTStartup" },
387 { "console", 3, "mainCRTStartup" },
388 { "posix", 7, "__PosixProcessStartup"},
389 { "wince", 9, "_WinMainCRTStartup" },
390 { "xbox", 14, "mainCRTStartup" },
393 /* Entry point name for arbitrary subsystem numbers. */
394 static const char default_entry[] = "mainCRTStartup";
396 /* Check for the presence of a version number. */
397 sver = strchr (optarg, ':');
399 len = strlen (optarg);
403 set_pep_name ("__major_subsystem_version__",
404 strtoul (sver + 1, &end, 0));
406 set_pep_name ("__minor_subsystem_version__",
407 strtoul (end + 1, &end, 0));
409 einfo (_("%P: warning: bad version number in -subsystem option\n"));
412 /* Check for numeric subsystem. */
413 temp_subsystem = strtoul (optarg, & end, 0);
414 if ((*end == ':' || *end == '\0') && (temp_subsystem < 65536))
416 /* Search list for a numeric match to use its entry point. */
417 for (i = 0; v[i].name; i++)
418 if (v[i].value == (int) temp_subsystem)
421 /* If no match, use the default. */
422 if (v[i].name != NULL)
425 entry = default_entry;
427 /* Use this subsystem. */
428 subsystem = (int) temp_subsystem;
432 /* Search for subsystem by name. */
433 for (i = 0; v[i].name; i++)
434 if (strncmp (optarg, v[i].name, len) == 0
435 && v[i].name[len] == '\0')
438 if (v[i].name == NULL)
440 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
445 subsystem = v[i].value;
448 set_pep_name ("__subsystem__", subsystem);
450 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
451 if (*initial_symbol_char != '\0')
455 /* lang_default_entry expects its argument to be permanently
456 allocated, so we don't free this string. */
457 alc_entry = xmalloc (strlen (initial_symbol_char)
460 strcpy (alc_entry, initial_symbol_char);
461 strcat (alc_entry, entry);
465 lang_default_entry (entry);
472 set_pep_value (char *name)
476 set_pep_name (name, (bfd_vma) strtoull (optarg, &end, 0));
479 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
486 set_pep_stack_heap (char *resname, char *comname)
488 set_pep_value (resname);
493 set_pep_value (comname);
496 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
501 gld${EMULATION_NAME}_handle_option (int optc)
508 case OPTION_BASE_FILE:
509 link_info.base_file = fopen (optarg, FOPEN_WB);
510 if (link_info.base_file == NULL)
512 /* xgettext:c-format */
513 fprintf (stderr, _("%s: Can't open base file %s\n"),
514 program_name, optarg);
521 set_pep_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
524 set_pep_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
526 case OPTION_SUBSYSTEM:
527 set_pep_subsystem ();
529 case OPTION_MAJOR_OS_VERSION:
530 set_pep_value ("__major_os_version__");
532 case OPTION_MINOR_OS_VERSION:
533 set_pep_value ("__minor_os_version__");
535 case OPTION_MAJOR_SUBSYSTEM_VERSION:
536 set_pep_value ("__major_subsystem_version__");
538 case OPTION_MINOR_SUBSYSTEM_VERSION:
539 set_pep_value ("__minor_subsystem_version__");
541 case OPTION_MAJOR_IMAGE_VERSION:
542 set_pep_value ("__major_image_version__");
544 case OPTION_MINOR_IMAGE_VERSION:
545 set_pep_value ("__minor_image_version__");
547 case OPTION_FILE_ALIGNMENT:
548 set_pep_value ("__file_alignment__");
550 case OPTION_SECTION_ALIGNMENT:
551 set_pep_value ("__section_alignment__");
554 set_pep_name ("__dll__", 1);
556 case OPTION_IMAGE_BASE:
557 set_pep_value ("__image_base__");
559 case OPTION_SUPPORT_OLD_CODE:
560 support_old_code = 1;
562 case OPTION_USE_NUL_PREFIXED_IMPORT_TABLES:
563 pep_use_nul_prefixed_import_tables = TRUE;
567 pep_out_def_filename = xstrdup (optarg);
569 case OPTION_EXPORT_ALL:
570 pep_dll_export_everything = 1;
572 case OPTION_EXCLUDE_SYMBOLS:
573 pep_dll_add_excludes (optarg, EXCLUDESYMS);
575 case OPTION_EXCLUDE_LIBS:
576 pep_dll_add_excludes (optarg, EXCLUDELIBS);
578 case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
579 pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
581 case OPTION_KILL_ATS:
582 pep_dll_kill_ats = 1;
584 case OPTION_STDCALL_ALIASES:
585 pep_dll_stdcall_aliases = 1;
587 case OPTION_ENABLE_STDCALL_FIXUP:
588 pep_enable_stdcall_fixup = 1;
590 case OPTION_DISABLE_STDCALL_FIXUP:
591 pep_enable_stdcall_fixup = 0;
593 case OPTION_IMPLIB_FILENAME:
594 pep_implib_filename = xstrdup (optarg);
596 case OPTION_WARN_DUPLICATE_EXPORTS:
597 pep_dll_warn_dup_exports = 1;
599 case OPTION_IMP_COMPAT:
600 pep_dll_compat_implib = 1;
602 case OPTION_ENABLE_AUTO_IMAGE_BASE:
603 pep_enable_auto_image_base = 1;
605 case OPTION_DISABLE_AUTO_IMAGE_BASE:
606 pep_enable_auto_image_base = 0;
608 case OPTION_DLL_SEARCH_PREFIX:
609 pep_dll_search_prefix = xstrdup (optarg);
611 case OPTION_NO_DEFAULT_EXCLUDES:
612 pep_dll_do_default_excludes = 0;
614 case OPTION_DLL_ENABLE_AUTO_IMPORT:
615 link_info.pei386_auto_import = 1;
617 case OPTION_DLL_DISABLE_AUTO_IMPORT:
618 link_info.pei386_auto_import = 0;
620 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC:
621 link_info.pei386_runtime_pseudo_reloc = 2;
623 case OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC:
624 link_info.pei386_runtime_pseudo_reloc = 0;
626 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1:
627 link_info.pei386_runtime_pseudo_reloc = 1;
629 case OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2:
630 link_info.pei386_runtime_pseudo_reloc = 2;
632 case OPTION_ENABLE_EXTRA_PE_DEBUG:
633 pep_dll_extra_pe_debug = 1;
643 strhash (const char *str)
645 const unsigned char *s;
652 s = (const unsigned char *) str;
653 while ((c = *s++) != '\0')
655 hash += c + (c << 17);
659 hash += len + (len << 17);
665 /* Use the output file to create a image base for relocatable DLLs. */
668 compute_dll_image_base (const char *ofile)
670 bfd_vma hash = (bfd_vma) strhash (ofile);
671 return 0x61300000 + ((hash << 16) & 0x0FFC0000);
675 /* Assign values to the special symbols before the linker script is
679 gld_${EMULATION_NAME}_set_symbols (void)
681 /* Run through and invent symbols for all the
682 names and insert the defaults. */
684 lang_statement_list_type *save;
686 if (!init[IMAGEBASEOFF].inited)
688 if (link_info.relocatable)
689 init[IMAGEBASEOFF].value = 0;
690 else if (init[DLLOFF].value || (link_info.shared && !link_info.pie))
692 init[IMAGEBASEOFF].value = (pep_enable_auto_image_base) ?
693 compute_dll_image_base (output_filename) : NT_DLL_IMAGE_BASE;
695 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
698 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
699 init[MSIMAGEBASEOFF].value = init[IMAGEBASEOFF].value;
702 /* Don't do any symbol assignments if this is a relocatable link. */
703 if (link_info.relocatable)
706 /* Glue the assignments into the abs section. */
709 stat_ptr = &(abs_output_section->children);
711 for (j = 0; init[j].ptr; j++)
713 bfd_vma val = init[j].value;
714 lang_assignment_statement_type *rv;
715 rv = lang_add_assignment (exp_assop ('=', init[j].symbol,
717 if (init[j].size == sizeof (short))
718 *(short *) init[j].ptr = (short) val;
719 else if (init[j].size == sizeof (int))
720 *(int *) init[j].ptr = (int) val;
721 else if (init[j].size == sizeof (long))
722 *(long *) init[j].ptr = (long) val;
723 /* This might be a long long or other special type. */
724 else if (init[j].size == sizeof (bfd_vma))
725 *(bfd_vma *) init[j].ptr = val;
727 if (j == IMAGEBASEOFF)
728 image_base_statement = rv;
730 /* Restore the pointer. */
733 if (pep.FileAlignment > pep.SectionAlignment)
735 einfo (_("%P: warning, file alignment > section alignment.\n"));
739 /* This is called after the linker script and the command line options
743 gld_${EMULATION_NAME}_after_parse (void)
745 /* The Windows libraries are designed for the linker to treat the
746 entry point as an undefined symbol. Otherwise, the .obj that
747 defines mainCRTStartup is brought in because it is the first
748 encountered in libc.lib and it has other symbols in it which will
749 be pulled in by the link process. To avoid this, we act as
750 though the user specified -u with the entry point symbol.
752 This function is called after the linker script and command line
753 options have been read, so at this point we know the right entry
754 point. This function is called before the input files are
755 opened, so registering the symbol as undefined will make a
758 if (! link_info.relocatable && entry_symbol.name != NULL)
759 ldlang_add_undef (entry_symbol.name);
762 /* pep-dll.c directly accesses pep_data_import_dll,
763 so it must be defined outside of #ifdef DLL_SUPPORT.
764 Note - this variable is deliberately not initialised.
765 This allows it to be treated as a common varaible, and only
766 exist in one incarnation in a multiple target enabled linker. */
767 char * pep_data_import_dll;
770 static struct bfd_link_hash_entry *pep_undef_found_sym;
773 pep_undef_cdecl_match (struct bfd_link_hash_entry *h, void *inf)
778 sl = strlen (string);
779 if (h->type == bfd_link_hash_defined
780 && strncmp (h->root.string, string, sl) == 0
781 && h->root.string[sl] == '@')
783 pep_undef_found_sym = h;
790 pep_fixup_stdcalls (void)
792 static int gave_warning_message = 0;
793 struct bfd_link_hash_entry *undef, *sym;
795 if (pep_dll_extra_pe_debug)
796 printf ("%s\n", __FUNCTION__);
798 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
799 if (undef->type == bfd_link_hash_undefined)
801 char* at = strchr (undef->root.string, '@');
802 int lead_at = (*undef->root.string == '@');
803 /* For now, don't try to fixup fastcall symbols. */
807 /* The symbol is a stdcall symbol, so let's look for a
808 cdecl symbol with the same name and resolve to that. */
809 char *cname = xstrdup (undef->root.string /* + lead_at */);
810 at = strchr (cname, '@');
812 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
814 if (sym && sym->type == bfd_link_hash_defined)
816 undef->type = bfd_link_hash_defined;
817 undef->u.def.value = sym->u.def.value;
818 undef->u.def.section = sym->u.def.section;
820 if (pep_enable_stdcall_fixup == -1)
822 einfo (_("Warning: resolving %s by linking to %s\n"),
823 undef->root.string, cname);
824 if (! gave_warning_message)
826 gave_warning_message = 1;
827 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
828 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
835 /* The symbol is a cdecl symbol, so we look for stdcall
836 symbols - which means scanning the whole symbol table. */
837 pep_undef_found_sym = 0;
838 bfd_link_hash_traverse (link_info.hash, pep_undef_cdecl_match,
839 (char *) undef->root.string);
840 sym = pep_undef_found_sym;
843 undef->type = bfd_link_hash_defined;
844 undef->u.def.value = sym->u.def.value;
845 undef->u.def.section = sym->u.def.section;
847 if (pep_enable_stdcall_fixup == -1)
849 einfo (_("Warning: resolving %s by linking to %s\n"),
850 undef->root.string, sym->root.string);
851 if (! gave_warning_message)
853 gave_warning_message = 1;
854 einfo (_("Use --enable-stdcall-fixup to disable these warnings\n"));
855 einfo (_("Use --disable-stdcall-fixup to disable these fixups\n"));
864 make_import_fixup (arelent *rel, asection *s)
866 struct bfd_symbol *sym = *rel->sym_ptr_ptr;
871 if (pep_dll_extra_pe_debug)
872 printf ("arelent: %s@%#lx: add=%li\n", sym->name,
873 (unsigned long) rel->address, (long) rel->addend);
875 memset (addend, 0, sizeof (addend));
876 switch ((rel->howto->bitsize))
879 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 1);
880 if (suc && rel->howto->pc_relative)
881 _addend = (bfd_vma) ((bfd_signed_vma) ((char) bfd_get_8 (s->owner, addend)));
883 _addend = ((bfd_vma) bfd_get_8 (s->owner, addend)) & 0xff;
886 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 2);
887 if (suc && rel->howto->pc_relative)
888 _addend = (bfd_vma) ((bfd_signed_vma) ((short) bfd_get_16 (s->owner, addend)));
890 _addend = ((bfd_vma) bfd_get_16 (s->owner, addend)) & 0xffff;
893 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 4);
894 if (suc && rel->howto->pc_relative)
895 _addend = (bfd_vma) ((bfd_signed_vma) ((int) bfd_get_32 (s->owner, addend)));
897 _addend = ((bfd_vma) bfd_get_32 (s->owner, addend)) & 0xffffffff;
900 suc = bfd_get_section_contents (s->owner, s, addend, rel->address, 8);
902 _addend = ((bfd_vma) bfd_get_64 (s->owner, addend));
906 einfo (_("%C: Cannot get section contents - auto-import exception\n"),
907 s->owner, s, rel->address);
909 if (pep_dll_extra_pe_debug)
911 printf ("import of 0x%lx(0x%lx) sec_addr=0x%lx", (long) _addend, (long) rel->addend, (long) rel->address);
912 if (rel->howto->pc_relative) printf (" pcrel");
913 printf (" %d bit rel.\n",(int) rel->howto->bitsize);
915 pep_create_import_fixup (rel, s, _addend);
921 pep_find_data_imports (void)
923 struct bfd_link_hash_entry *undef, *sym;
925 if (link_info.pei386_auto_import == 0)
928 for (undef = link_info.hash->undefs; undef; undef=undef->u.undef.next)
930 if (undef->type == bfd_link_hash_undefined)
932 /* C++ symbols are *long*. */
935 if (pep_dll_extra_pe_debug)
936 printf ("%s:%s\n", __FUNCTION__, undef->root.string);
938 sprintf (buf, "__imp_%s", undef->root.string);
940 sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1);
942 if (sym && sym->type == bfd_link_hash_defined)
944 bfd *b = sym->u.def.section->owner;
948 if (link_info.pei386_auto_import == -1)
950 static bfd_boolean warned = FALSE;
952 info_msg (_("Info: resolving %s by linking to %s (auto-import)\n"),
953 undef->root.string, buf);
955 /* PR linker/4844. */
959 einfo (_("%P: warning: auto-importing has been activated without --enable-auto-import specified on the command line.\n\
960 This should work unless it involves constant data structures referencing symbols from auto-imported DLLs.\n"));
964 if (!bfd_generic_link_read_symbols (b))
966 einfo (_("%B%F: could not read symbols: %E\n"), b);
970 symbols = bfd_get_outsymbols (b);
971 nsyms = bfd_get_symcount (b);
973 for (i = 0; i < nsyms; i++)
975 if (! CONST_STRNEQ (symbols[i]->name, "__head_"))
978 if (pep_dll_extra_pe_debug)
979 printf ("->%s\n", symbols[i]->name);
981 pep_data_import_dll = (char*) (symbols[i]->name +
982 sizeof ("__head_") - 1);
986 pep_walk_relocs_of_symbol (&link_info, undef->root.string,
989 /* Let's differentiate it somehow from defined. */
990 undef->type = bfd_link_hash_defweak;
991 /* We replace original name with __imp_ prefixed, this
992 1) may trash memory 2) leads to duplicate symbol generation.
993 Still, IMHO it's better than having name poluted. */
994 undef->root.string = sym->root.string;
995 undef->u.def.value = sym->u.def.value;
996 undef->u.def.section = sym->u.def.section;
1003 pr_sym (struct bfd_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
1005 if (pep_dll_extra_pe_debug)
1006 printf ("+%s\n", h->string);
1010 #endif /* DLL_SUPPORT */
1014 gld_${EMULATION_NAME}_after_open (void)
1017 if (pep_dll_extra_pe_debug)
1020 struct bfd_link_hash_entry *sym;
1022 printf ("%s()\n", __FUNCTION__);
1024 for (sym = link_info.hash->undefs; sym; sym=sym->u.undef.next)
1025 printf ("-%s\n", sym->root.string);
1026 bfd_hash_traverse (&link_info.hash->table, pr_sym, NULL);
1028 for (a = link_info.input_bfds; a; a = a->link_next)
1029 printf ("*%s\n",a->filename);
1033 /* Pass the wacky PE command line options into the output bfd.
1034 FIXME: This should be done via a function, rather than by
1035 including an internal BFD header. */
1037 if (coff_data (link_info.output_bfd) == NULL
1038 || coff_data (link_info.output_bfd)->pe == 0)
1039 einfo (_("%F%P: cannot perform PE operations on non PE output file '%B'.\n"),
1040 link_info.output_bfd);
1042 pe_data (link_info.output_bfd)->pe_opthdr = pep;
1043 pe_data (link_info.output_bfd)->dll = init[DLLOFF].value;
1044 pe_data (link_info.output_bfd)->real_flags |= real_flags;
1047 if (pep_enable_stdcall_fixup) /* -1=warn or 1=disable */
1048 pep_fixup_stdcalls ();
1050 pep_process_import_defs (link_info.output_bfd, &link_info);
1052 pep_find_data_imports ();
1054 #ifndef TARGET_IS_i386pep
1055 if (link_info.shared)
1057 if (!link_info.relocatable)
1059 pep_dll_build_sections (link_info.output_bfd, &link_info);
1061 #ifndef TARGET_IS_i386pep
1063 pep_exe_build_sections (link_info.output_bfd, &link_info);
1065 #endif /* DLL_SUPPORT */
1068 /* This next chunk of code tries to detect the case where you have
1069 two import libraries for the same DLL (specifically,
1070 symbolically linking libm.a and libc.a in cygwin to
1071 libcygwin.a). In those cases, it's possible for function
1072 thunks from the second implib to be used but without the
1073 head/tail objects, causing an improper import table. We detect
1074 those cases and rename the "other" import libraries to match
1075 the one the head/tail come from, so that the linker will sort
1076 things nicely and produce a valid import table. */
1078 LANG_FOR_EACH_INPUT_STATEMENT (is)
1080 if (is->the_bfd->my_archive)
1082 int idata2 = 0, reloc_count=0, is_imp = 0;
1085 /* See if this is an import library thunk. */
1086 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1088 if (strcmp (sec->name, ".idata\$2") == 0)
1090 if (CONST_STRNEQ (sec->name, ".idata\$"))
1092 reloc_count += sec->reloc_count;
1095 if (is_imp && !idata2 && reloc_count)
1097 /* It is, look for the reference to head and see if it's
1098 from our own library. */
1099 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1107 relsize = bfd_get_reloc_upper_bound (is->the_bfd, sec);
1111 if (!bfd_generic_link_read_symbols (is->the_bfd))
1113 einfo (_("%B%F: could not read symbols: %E\n"),
1117 symbols = bfd_get_outsymbols (is->the_bfd);
1119 relocs = xmalloc ((size_t) relsize);
1120 nrelocs = bfd_canonicalize_reloc (is->the_bfd, sec,
1125 einfo ("%X%P: unable to process relocs: %E\n");
1129 for (i = 0; i < nrelocs; i++)
1131 struct bfd_symbol *s;
1132 struct bfd_link_hash_entry * blhe;
1133 char *other_bfd_filename;
1136 s = (relocs[i]->sym_ptr_ptr)[0];
1138 if (s->flags & BSF_LOCAL)
1141 /* Thunk section with reloc to another bfd. */
1142 blhe = bfd_link_hash_lookup (link_info.hash,
1144 FALSE, FALSE, TRUE);
1147 || blhe->type != bfd_link_hash_defined)
1151 = blhe->u.def.section->owner->my_archive
1152 ? bfd_get_filename (blhe->u.def.section->owner->my_archive)
1153 : bfd_get_filename (blhe->u.def.section->owner);
1155 if (strcmp (bfd_get_filename (is->the_bfd->my_archive),
1156 other_bfd_filename) == 0)
1159 /* Rename this implib to match the other one. */
1160 n = xmalloc (strlen (other_bfd_filename) + 1);
1161 strcpy (n, other_bfd_filename);
1162 is->the_bfd->my_archive->filename = n;
1166 /* Note - we do not free the symbols,
1167 they are now cached in the BFD. */
1177 lang_input_statement_type *is2;
1178 lang_input_statement_type *is3;
1180 /* Careful - this is a shell script. Watch those dollar signs! */
1181 /* Microsoft import libraries have every member named the same,
1182 and not in the right order for us to link them correctly. We
1183 must detect these and rename the members so that they'll link
1184 correctly. There are three types of objects: the head, the
1185 thunks, and the sentinel(s). The head is easy; it's the one
1186 with idata2. We assume that the sentinels won't have relocs,
1187 and the thunks will. It's easier than checking the symbol
1188 table for external references. */
1189 LANG_FOR_EACH_INPUT_STATEMENT (is)
1191 if (is->the_bfd->my_archive)
1194 bfd *arch = is->the_bfd->my_archive;
1196 if (cur_arch != arch)
1202 is3 && is3->the_bfd->my_archive == arch;
1203 is3 = (lang_input_statement_type *) is3->next)
1205 /* A MS dynamic import library can also contain static
1206 members, so look for the first element with a .dll
1207 extension, and use that for the remainder of the
1209 pnt = strrchr (is3->the_bfd->filename, '.');
1210 if (pnt != NULL && strcmp (pnt, ".dll") == 0)
1218 /* OK, found one. Now look to see if the remaining
1219 (dynamic import) members use the same name. */
1221 is2 && is2->the_bfd->my_archive == arch;
1222 is2 = (lang_input_statement_type *) is2->next)
1224 /* Skip static members, ie anything with a .obj
1226 pnt = strrchr (is2->the_bfd->filename, '.');
1227 if (pnt != NULL && strcmp (pnt, ".obj") == 0)
1230 if (strcmp (is3->the_bfd->filename,
1231 is2->the_bfd->filename))
1240 /* This fragment might have come from an .obj file in a Microsoft
1241 import, and not an actual import record. If this is the case,
1242 then leave the filename alone. */
1243 pnt = strrchr (is->the_bfd->filename, '.');
1245 if (is_ms_arch && (strcmp (pnt, ".dll") == 0))
1247 int idata2 = 0, reloc_count=0;
1249 char *new_name, seq;
1251 for (sec = is->the_bfd->sections; sec; sec = sec->next)
1253 if (strcmp (sec->name, ".idata\$2") == 0)
1255 reloc_count += sec->reloc_count;
1258 if (idata2) /* .idata2 is the TOC */
1260 else if (reloc_count > 0) /* thunks */
1265 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
1266 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
1267 is->the_bfd->filename = new_name;
1269 new_name = xmalloc (strlen (is->filename) + 3);
1270 sprintf (new_name, "%s.%c", is->filename, seq);
1271 is->filename = new_name;
1279 gld_${EMULATION_NAME}_before_allocation (void)
1281 before_allocation_default ();
1285 /* This is called when an input file isn't recognized as a BFD. We
1286 check here for .DEF files and pull them in automatically. */
1289 saw_option (char *option)
1293 for (i = 0; init[i].ptr; i++)
1294 if (strcmp (init[i].symbol, option) == 0)
1295 return init[i].inited;
1298 #endif /* DLL_SUPPORT */
1301 gld_${EMULATION_NAME}_unrecognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1304 const char *ext = entry->filename + strlen (entry->filename) - 4;
1306 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
1308 pep_def_file = def_file_parse (entry->filename, pep_def_file);
1312 int i, buflen=0, len;
1315 for (i = 0; i < pep_def_file->num_exports; i++)
1317 len = strlen (pep_def_file->exports[i].internal_name);
1318 if (buflen < len + 2)
1322 buf = xmalloc (buflen);
1324 for (i = 0; i < pep_def_file->num_exports; i++)
1326 struct bfd_link_hash_entry *h;
1328 sprintf (buf, "_%s", pep_def_file->exports[i].internal_name);
1330 h = bfd_link_hash_lookup (link_info.hash, buf, TRUE, TRUE, TRUE);
1331 if (h == (struct bfd_link_hash_entry *) NULL)
1332 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
1333 if (h->type == bfd_link_hash_new)
1335 h->type = bfd_link_hash_undefined;
1336 h->u.undef.abfd = NULL;
1337 bfd_link_add_undef (link_info.hash, h);
1342 /* def_file_print (stdout, pep_def_file); */
1343 if (pep_def_file->is_dll == 1)
1344 link_info.shared = 1;
1346 if (pep_def_file->base_address != (bfd_vma)(-1))
1349 = pe_data (link_info.output_bfd)->pe_opthdr.ImageBase
1350 = init[IMAGEBASEOFF].value
1351 = pep_def_file->base_address;
1352 init[IMAGEBASEOFF].inited = 1;
1353 if (image_base_statement)
1354 image_base_statement->exp = exp_assop ('=', "__image_base__",
1355 exp_intop (pep.ImageBase));
1358 if (pep_def_file->stack_reserve != -1
1359 && ! saw_option ("__size_of_stack_reserve__"))
1361 pep.SizeOfStackReserve = pep_def_file->stack_reserve;
1362 if (pep_def_file->stack_commit != -1)
1363 pep.SizeOfStackCommit = pep_def_file->stack_commit;
1365 if (pep_def_file->heap_reserve != -1
1366 && ! saw_option ("__size_of_heap_reserve__"))
1368 pep.SizeOfHeapReserve = pep_def_file->heap_reserve;
1369 if (pep_def_file->heap_commit != -1)
1370 pep.SizeOfHeapCommit = pep_def_file->heap_commit;
1380 gld_${EMULATION_NAME}_recognized_file (lang_input_statement_type *entry ATTRIBUTE_UNUSED)
1383 #ifdef TARGET_IS_i386pep
1384 pep_dll_id_target ("pei-x86-64");
1386 if (pep_bfd_is_dll (entry->the_bfd))
1387 return pep_implied_import_dll (entry->filename);
1393 gld_${EMULATION_NAME}_finish (void)
1398 if (link_info.shared
1399 || (!link_info.relocatable && pep_def_file->num_exports != 0))
1401 pep_dll_fill_sections (link_info.output_bfd, &link_info);
1402 if (pep_implib_filename)
1403 pep_dll_generate_implib (pep_def_file, pep_implib_filename, &link_info);
1406 if (pep_out_def_filename)
1407 pep_dll_generate_def_file (pep_out_def_filename);
1408 #endif /* DLL_SUPPORT */
1410 /* I don't know where .idata gets set as code, but it shouldn't be. */
1412 asection *asec = bfd_get_section_by_name (link_info.output_bfd, ".idata");
1416 asec->flags &= ~SEC_CODE;
1417 asec->flags |= SEC_DATA;
1423 /* Place an orphan section.
1425 We use this to put sections in a reasonable place in the file, and
1426 to ensure that they are aligned as required.
1428 We handle grouped sections here as well. A section named .foo\$nn
1429 goes into the output section .foo. All grouped sections are sorted
1432 Grouped sections for the default sections are handled by the
1433 default linker script using wildcards, and are sorted by
1436 static lang_output_section_statement_type *
1437 gld_${EMULATION_NAME}_place_orphan (asection *s,
1438 const char *secname,
1441 const char *orig_secname = secname;
1442 char *dollar = NULL;
1443 lang_output_section_statement_type *os;
1444 lang_statement_list_type add_child;
1446 /* Look through the script to see where to place this section. */
1447 if (!link_info.relocatable
1448 && (dollar = strchr (secname, '\$')) != NULL)
1450 size_t len = dollar - secname;
1451 char *newname = xmalloc (len + 1);
1452 memcpy (newname, secname, len);
1453 newname[len] = '\0';
1457 lang_list_init (&add_child);
1460 && (os = lang_output_section_find (secname)) != NULL
1461 && os->bfd_section != NULL
1462 && (os->bfd_section->flags == 0
1463 || ((s->flags ^ os->bfd_section->flags)
1464 & (SEC_LOAD | SEC_ALLOC)) == 0))
1466 /* We already have an output section statement with this
1467 name, and its bfd section has compatible flags.
1468 If the section already exists but does not have any flags set,
1469 then it has been created by the linker, probably as a result of
1470 a --section-start command line switch. */
1471 lang_add_section (&add_child, s, os);
1475 static struct orphan_save hold[] =
1478 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1481 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1484 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1490 enum orphan_save_index
1497 static int orphan_init_done = 0;
1498 struct orphan_save *place;
1499 lang_output_section_statement_type *after;
1500 etree_type *address;
1502 if (!orphan_init_done)
1504 struct orphan_save *ho;
1505 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1506 if (ho->name != NULL)
1508 ho->os = lang_output_section_find (ho->name);
1509 if (ho->os != NULL && ho->os->flags == 0)
1510 ho->os->flags = ho->flags;
1512 orphan_init_done = 1;
1515 /* Try to put the new output section in a reasonable place based
1516 on the section name and section flags. */
1519 if ((s->flags & SEC_ALLOC) == 0)
1521 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1522 place = &hold[orphan_bss];
1523 else if ((s->flags & SEC_READONLY) == 0)
1524 place = &hold[orphan_data];
1525 else if ((s->flags & SEC_CODE) == 0)
1526 place = &hold[orphan_rodata];
1528 place = &hold[orphan_text];
1533 if (place->os == NULL)
1534 place->os = lang_output_section_find (place->name);
1537 after = lang_output_section_find_by_flags (s, &place->os, NULL);
1539 /* *ABS* is always the first output section statement. */
1540 after = (&lang_output_section_statement.head
1541 ->output_section_statement);
1544 /* All sections in an executable must be aligned to a page boundary. */
1545 address = exp_unop (ALIGN_K, exp_nameop (NAME, "__section_alignment__"));
1546 os = lang_insert_orphan (s, secname, constraint, after, place, address,
1551 lang_statement_union_type **pl = &os->children.head;
1555 bfd_boolean found_dollar;
1557 /* The section name has a '\$'. Sort it with the other '\$'
1559 found_dollar = FALSE;
1560 for ( ; *pl != NULL; pl = &(*pl)->header.next)
1562 lang_input_section_type *ls;
1565 if ((*pl)->header.type != lang_input_section_enum)
1568 ls = &(*pl)->input_section;
1570 lname = bfd_get_section_name (ls->section->owner, ls->section);
1571 if (strchr (lname, '\$') == NULL)
1578 found_dollar = TRUE;
1579 if (strcmp (orig_secname, lname) < 0)
1585 if (add_child.head != NULL)
1587 add_child.head->header.next = *pl;
1588 *pl = add_child.head;
1596 gld_${EMULATION_NAME}_open_dynamic_archive
1597 (const char *arch ATTRIBUTE_UNUSED,
1598 search_dirs_type *search,
1599 lang_input_statement_type *entry)
1603 const char * format;
1604 bfd_boolean use_prefix;
1608 /* Preferred explicit import library for dll's. */
1609 { "lib%s.dll.a", FALSE },
1610 /* Alternate explicit import library for dll's. */
1611 { "%s.dll.a", FALSE },
1612 /* "libfoo.a" could be either an import lib or a static lib.
1613 For backwards compatibility, libfoo.a needs to precede
1614 libfoo.dll and foo.dll in the search. */
1615 { "lib%s.a", FALSE },
1616 /* The 'native' spelling of an import lib name is "foo.lib". */
1617 { "%s.lib", FALSE },
1619 /* Try "<prefix>foo.dll" (preferred dll name, if specified). */
1620 { "%s%s.dll", TRUE },
1622 /* Try "libfoo.dll" (default preferred dll name). */
1623 { "lib%s.dll", FALSE },
1624 /* Finally try 'native' dll name "foo.dll". */
1625 { "%s.dll", FALSE },
1626 /* Note: If adding more formats to this table, make sure to check to
1627 see if their length is longer than libname_fmt[0].format, and if
1628 so, update the call to xmalloc() below. */
1631 static unsigned int format_max_len = 0;
1632 const char * filename;
1638 if (! entry->is_archive)
1641 filename = entry->filename;
1643 if (format_max_len == 0)
1644 /* We need to allow space in the memory that we are going to allocate
1645 for the characters in the format string. Since the format array is
1646 static we only need to calculate this information once. In theory
1647 this value could also be computed statically, but this introduces
1648 the possibility for a discrepancy and hence a possible memory
1649 corruption. The lengths we compute here will be too long because
1650 they will include any formating characters (%s) in the strings, but
1651 this will not matter. */
1652 for (i = 0; libname_fmt[i].format; i++)
1653 if (format_max_len < strlen (libname_fmt[i].format))
1654 format_max_len = strlen (libname_fmt[i].format);
1656 full_string = xmalloc (strlen (search->name)
1660 + (pep_dll_search_prefix
1661 ? strlen (pep_dll_search_prefix) : 0)
1663 /* Allow for the terminating NUL and for the path
1664 separator character that is inserted between
1665 search->name and the start of the format string. */
1668 sprintf (full_string, "%s/", search->name);
1669 base_string = full_string + strlen (full_string);
1671 for (i = 0; libname_fmt[i].format; i++)
1674 if (libname_fmt[i].use_prefix)
1676 if (!pep_dll_search_prefix)
1678 sprintf (base_string, libname_fmt[i].format, pep_dll_search_prefix, filename);
1682 sprintf (base_string, libname_fmt[i].format, filename);
1684 if (ldfile_try_open_bfd (full_string, entry))
1688 if (!libname_fmt[i].format)
1694 entry->filename = full_string;
1700 gld_${EMULATION_NAME}_find_potential_libraries
1701 (char *name, lang_input_statement_type *entry)
1703 return ldfile_open_file_search (name, entry, "", ".lib");
1707 gld_${EMULATION_NAME}_get_script (int *isfile)
1709 # Scripts compiled in.
1710 # sed commands to quote an ld script as a C string.
1711 sc="-f stringify.sed"
1717 if (link_info.relocatable && config.build_constructors)
1720 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1721 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1722 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1723 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1724 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1725 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1726 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1727 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT" ; then
1728 echo ' ; else if (link_info.pei386_auto_import == 1) return' >> e${EMULATION_NAME}.c
1729 sed $sc ldscripts/${EMULATION_NAME}.xa >> e${EMULATION_NAME}.c
1731 echo ' ; else return' >> e${EMULATION_NAME}.c
1732 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1733 echo '; }' >> e${EMULATION_NAME}.c
1738 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1740 gld_${EMULATION_NAME}_before_parse,
1743 gld_${EMULATION_NAME}_after_parse,
1744 gld_${EMULATION_NAME}_after_open,
1745 after_allocation_default,
1746 set_output_arch_default,
1747 ldemul_default_target,
1748 gld_${EMULATION_NAME}_before_allocation,
1749 gld_${EMULATION_NAME}_get_script,
1750 "${EMULATION_NAME}",
1752 gld_${EMULATION_NAME}_finish,
1753 NULL, /* Create output section statements. */
1754 gld_${EMULATION_NAME}_open_dynamic_archive,
1755 gld_${EMULATION_NAME}_place_orphan,
1756 gld_${EMULATION_NAME}_set_symbols,
1757 NULL, /* parse_args */
1758 gld${EMULATION_NAME}_add_options,
1759 gld${EMULATION_NAME}_handle_option,
1760 gld_${EMULATION_NAME}_unrecognized_file,
1761 gld_${EMULATION_NAME}_list_options,
1762 gld_${EMULATION_NAME}_recognized_file,
1763 gld_${EMULATION_NAME}_find_potential_libraries,
1764 NULL /* new_vers_pattern. */