1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 rm -f e${EMULATION_NAME}.c
4 (echo;echo;echo;echo;echo)>e${EMULATION_NAME}.c # there, now line numbers match ;-)
5 cat >>e${EMULATION_NAME}.c <<EOF
6 /* This file is part of GLD, the Gnu Linker.
7 Copyright 1995, 96, 97, 98, 1999 Free Software Foundation, Inc.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 /* The original file generated returned different default scripts depending
25 on whether certain switches were set, but these switches pertain to the
26 Linux system and that particular version of coff. In the NT case, we
27 only determine if the subsystem is console or windows in order to select
28 the correct entry point by default. */
34 #include "libiberty.h"
45 #include "coff/internal.h"
47 /* FIXME: This is a BFD internal header file, and we should not be
49 #include "../bfd/libcoff.h"
54 #define TARGET_IS_${EMULATION_NAME}
56 /* Permit the emulation parameters to override the default section
57 alignment by setting OVERRIDE_SECTION_ALIGNMENT. FIXME: This makes
58 it seem that include/coff/internal.h should not define
59 PE_DEF_SECTION_ALIGNMENT. */
60 #if PE_DEF_SECTION_ALIGNMENT != ${OVERRIDE_SECTION_ALIGNMENT:-PE_DEF_SECTION_ALIGNMENT}
61 #undef PE_DEF_SECTION_ALIGNMENT
62 #define PE_DEF_SECTION_ALIGNMENT ${OVERRIDE_SECTION_ALIGNMENT}
65 #if defined(TARGET_IS_i386pe)
69 #define PE_DEF_SUBSYSTEM 3
71 #ifdef TARGET_IS_arm_epoc_pe
72 #define bfd_arm_pe_allocate_interworking_sections \
73 bfd_arm_epoc_pe_allocate_interworking_sections
74 #define bfd_arm_pe_get_bfd_for_interworking \
75 bfd_arm_epoc_pe_get_bfd_for_interworking
76 #define bfd_arm_pe_process_before_allocation \
77 bfd_arm_epoc_pe_process_before_allocation
80 static void gld_${EMULATION_NAME}_set_symbols PARAMS ((void));
81 static void gld_${EMULATION_NAME}_after_open PARAMS ((void));
82 static void gld_${EMULATION_NAME}_before_parse PARAMS ((void));
83 static void gld_${EMULATION_NAME}_after_parse PARAMS ((void));
84 static void gld_${EMULATION_NAME}_before_allocation PARAMS ((void));
85 static boolean gld_${EMULATION_NAME}_place_orphan
86 PARAMS ((lang_input_statement_type *, asection *));
87 static void gld${EMULATION_NAME}_place_section
88 PARAMS ((lang_statement_union_type *));
89 static char *gld_${EMULATION_NAME}_get_script PARAMS ((int *));
90 static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **));
91 static void gld_${EMULATION_NAME}_finish PARAMS ((void));
93 static struct internal_extra_pe_aouthdr pe;
95 static int support_old_code = 0;
96 static char * thumb_entry_symbol = NULL;
97 static lang_assignment_statement_type *image_base_statement = 0;
99 static char *pe_out_def_filename = 0;
100 static int pe_enable_stdcall_fixup = -1; /* 0=disable 1=enable */
101 static char *pe_implib_filename = 0;
103 extern const char *output_filename;
106 gld_${EMULATION_NAME}_before_parse()
108 output_filename = "${EXECUTABLE_NAME:-a.exe}";
109 ldfile_output_architecture = bfd_arch_${ARCH};
111 config.has_shared = 1;
115 /* PE format extra command line options. */
117 /* Used for setting flags in the PE header. */
118 #define OPTION_BASE_FILE (300 + 1)
119 #define OPTION_DLL (OPTION_BASE_FILE + 1)
120 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
121 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
122 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
123 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
124 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
125 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
126 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
127 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
128 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
129 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
130 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
131 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
132 #define OPTION_SUPPORT_OLD_CODE (OPTION_HEAP + 1)
133 #define OPTION_OUT_DEF (OPTION_SUPPORT_OLD_CODE + 1)
134 #define OPTION_EXPORT_ALL (OPTION_OUT_DEF + 1)
135 #define OPTION_EXCLUDE_SYMBOLS (OPTION_EXPORT_ALL + 1)
136 #define OPTION_KILL_ATS (OPTION_EXCLUDE_SYMBOLS + 1)
137 #define OPTION_STDCALL_ALIASES (OPTION_KILL_ATS + 1)
138 #define OPTION_ENABLE_STDCALL_FIXUP (OPTION_STDCALL_ALIASES + 1)
139 #define OPTION_DISABLE_STDCALL_FIXUP (OPTION_ENABLE_STDCALL_FIXUP + 1)
140 #define OPTION_IMPLIB_FILENAME (OPTION_DISABLE_STDCALL_FIXUP + 1)
141 #define OPTION_THUMB_ENTRY (OPTION_IMPLIB_FILENAME + 1)
143 static struct option longopts[] =
146 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
147 {"dll", no_argument, NULL, OPTION_DLL},
148 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
149 {"heap", required_argument, NULL, OPTION_HEAP},
150 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
151 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
152 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
153 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
154 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
155 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
156 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
157 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
158 {"stack", required_argument, NULL, OPTION_STACK},
159 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
160 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
161 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
163 /* getopt allows abbreviations, so we do this to stop it from treating -o
164 as an abbreviation for this option */
165 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
166 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
167 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
168 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
169 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
170 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
171 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
172 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
173 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
175 {NULL, no_argument, NULL, 0}
179 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
180 parameters which may be input from the command line */
191 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
193 static definfo init[] =
195 /* imagebase must be first */
196 #define IMAGEBASEOFF 0
197 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
199 {&dll, sizeof(dll), 0, "__dll__", 0},
200 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
201 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
202 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
203 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
204 D(MajorImageVersion,"__major_image_version__", 1),
205 D(MinorImageVersion,"__minor_image_version__", 0),
206 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
207 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
208 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
209 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
210 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
211 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
212 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
213 D(LoaderFlags,"__loader_flags__", 0x0),
214 { NULL, 0, 0, NULL, 0 }
218 gld_${EMULATION_NAME}_list_options (file)
221 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
222 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
223 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
224 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
225 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
226 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
227 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
228 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
229 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
230 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
231 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
232 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
233 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
234 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
235 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
236 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
238 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
239 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
240 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
241 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
242 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
243 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
244 fprintf (file, _(" --out-implib <file> Generate import library\n"));
245 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
250 set_pe_name (name, val)
255 /* Find the name and set it. */
256 for (i = 0; init[i].ptr; i++)
258 if (strcmp (name, init[i].symbol) == 0)
283 { "native", 1, "NtProcessStartup" },
284 { "windows", 2, "WinMainCRTStartup" },
285 { "console", 3, "mainCRTStartup" },
287 /* The Microsoft linker does not recognize this. */
290 { "posix", 7, "__PosixProcessStartup"},
294 sver = strchr (optarg, ':');
296 len = strlen (optarg);
302 set_pe_name ("__major_subsystem_version__",
303 strtoul (sver + 1, &end, 0));
305 set_pe_name ("__minor_subsystem_version__",
306 strtoul (end + 1, &end, 0));
308 einfo (_("%P: warning: bad version number in -subsystem option\n"));
311 for (i = 0; v[i].name; i++)
313 if (strncmp (optarg, v[i].name, len) == 0
314 && v[i].name[len] == '\0')
316 const char *initial_symbol_char;
319 set_pe_name ("__subsystem__", v[i].value);
321 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
322 if (*initial_symbol_char == '\0')
328 /* lang_add_entry expects its argument to be permanently
329 allocated, so we don't free this string. */
330 alc_entry = xmalloc (strlen (initial_symbol_char)
331 + strlen (v[i].entry)
333 strcpy (alc_entry, initial_symbol_char);
334 strcat (alc_entry, v[i].entry);
338 lang_add_entry (entry, 1);
344 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
356 set_pe_name (name, strtoul (optarg, &end, 0));
359 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
365 set_pe_stack_heap (resname, comname)
369 set_pe_value (resname);
374 set_pe_value (comname);
377 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
383 gld_${EMULATION_NAME}_parse_args(argc, argv)
389 int prevoptind = optind;
390 int prevopterr = opterr;
392 static int lastoptind = -1;
394 if (lastoptind != optind)
400 optc = getopt_long_only (argc, argv, "-", longopts, &longind);
411 case OPTION_BASE_FILE:
412 link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
413 if (link_info.base_file == NULL)
415 /* xgettext:c-format */
416 fprintf (stderr, _("%s: Can't open base file %s\n"),
417 program_name, optarg);
424 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
427 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
429 case OPTION_SUBSYSTEM:
432 case OPTION_MAJOR_OS_VERSION:
433 set_pe_value ("__major_os_version__");
435 case OPTION_MINOR_OS_VERSION:
436 set_pe_value ("__minor_os_version__");
438 case OPTION_MAJOR_SUBSYSTEM_VERSION:
439 set_pe_value ("__major_subsystem_version__");
441 case OPTION_MINOR_SUBSYSTEM_VERSION:
442 set_pe_value ("__minor_subsystem_version__");
444 case OPTION_MAJOR_IMAGE_VERSION:
445 set_pe_value ("__major_image_version__");
447 case OPTION_MINOR_IMAGE_VERSION:
448 set_pe_value ("__minor_image_version__");
450 case OPTION_FILE_ALIGNMENT:
451 set_pe_value ("__file_alignment__");
453 case OPTION_SECTION_ALIGNMENT:
454 set_pe_value ("__section_alignment__");
457 set_pe_name ("__dll__", 1);
459 case OPTION_IMAGE_BASE:
460 set_pe_value ("__image_base__");
462 case OPTION_SUPPORT_OLD_CODE:
463 support_old_code = 1;
465 case OPTION_THUMB_ENTRY:
466 thumb_entry_symbol = optarg;
470 pe_out_def_filename = xstrdup (optarg);
472 case OPTION_EXPORT_ALL:
473 pe_dll_export_everything = 1;
475 case OPTION_EXCLUDE_SYMBOLS:
476 pe_dll_add_excludes (optarg);
478 case OPTION_KILL_ATS:
481 case OPTION_STDCALL_ALIASES:
482 pe_dll_stdcall_aliases = 1;
484 case OPTION_ENABLE_STDCALL_FIXUP:
485 pe_enable_stdcall_fixup = 1;
487 case OPTION_DISABLE_STDCALL_FIXUP:
488 pe_enable_stdcall_fixup = 0;
490 case OPTION_IMPLIB_FILENAME:
491 pe_implib_filename = xstrdup (optarg);
498 /* Assign values to the special symbols before the linker script is
502 gld_${EMULATION_NAME}_set_symbols ()
504 /* Run through and invent symbols for all the
505 names and insert the defaults. */
507 lang_statement_list_type *save;
509 if (!init[IMAGEBASEOFF].inited)
511 if (link_info.relocateable)
512 init[IMAGEBASEOFF].value = 0;
513 else if (init[DLLOFF].value || link_info.shared)
514 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
516 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
519 /* Don't do any symbol assignments if this is a relocateable link. */
520 if (link_info.relocateable)
523 /* Glue the assignments into the abs section */
526 stat_ptr = &(abs_output_section->children);
528 for (j = 0; init[j].ptr; j++)
530 long val = init[j].value;
531 lang_assignment_statement_type *rv;
532 rv = lang_add_assignment (exp_assop ('=' ,init[j].symbol, exp_intop (val)));
533 if (init[j].size == sizeof(short))
534 *(short *)init[j].ptr = val;
535 else if (init[j].size == sizeof(int))
536 *(int *)init[j].ptr = val;
537 else if (init[j].size == sizeof(long))
538 *(long *)init[j].ptr = val;
539 /* This might be a long long or other special type. */
540 else if (init[j].size == sizeof(bfd_vma))
541 *(bfd_vma *)init[j].ptr = val;
543 if (j == IMAGEBASEOFF)
544 image_base_statement = rv;
546 /* Restore the pointer. */
549 if (pe.FileAlignment >
552 einfo (_("%P: warning, file alignment > section alignment.\n"));
556 /* This is called after the linker script and the command line options
560 gld_${EMULATION_NAME}_after_parse ()
562 /* The Windows libraries are designed for the linker to treat the
563 entry point as an undefined symbol. Otherwise, the .obj that
564 defines mainCRTStartup is brought in because it is the first
565 encountered in libc.lib and it has other symbols in it which will
566 be pulled in by the link process. To avoid this, we act as
567 though the user specified -u with the entry point symbol.
569 This function is called after the linker script and command line
570 options have been read, so at this point we know the right entry
571 point. This function is called before the input files are
572 opened, so registering the symbol as undefined will make a
575 if (! link_info.relocateable && entry_symbol != NULL)
576 ldlang_add_undef (entry_symbol);
579 static struct bfd_link_hash_entry *pe_undef_found_sym;
582 pe_undef_cdecl_match (h, string)
583 struct bfd_link_hash_entry *h;
586 int sl = strlen (string);
587 if (h->type == bfd_link_hash_defined
588 && strncmp (h->root.string, string, sl) == 0
589 && h->root.string[sl] == '@')
591 pe_undef_found_sym = h;
600 static int gave_warning_message = 0;
601 struct bfd_link_hash_entry *undef, *sym;
603 for (undef = link_info.hash->undefs; undef; undef=undef->next)
604 if (undef->type == bfd_link_hash_undefined)
606 at = strchr (undef->root.string, '@');
609 /* The symbol is a stdcall symbol, so let's look for a cdecl
610 symbol with the same name and resolve to that */
611 char *cname = xstrdup (undef->root.string);
612 at = strchr (cname, '@');
614 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
615 if (sym && sym->type == bfd_link_hash_defined)
617 undef->type = bfd_link_hash_defined;
618 undef->u.def.value = sym->u.def.value;
619 undef->u.def.section = sym->u.def.section;
620 if (pe_enable_stdcall_fixup == -1)
622 einfo (_("Warning: resolving %s by linking to %s\n"),
623 undef->root.string, cname);
624 if (! gave_warning_message)
626 gave_warning_message = 1;
627 einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
628 einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
635 /* The symbol is a cdecl symbol, so we look for stdcall
636 symbols - which means scanning the whole symbol table */
637 pe_undef_found_sym = 0;
638 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
639 (PTR) undef->root.string);
640 sym = pe_undef_found_sym;
643 undef->type = bfd_link_hash_defined;
644 undef->u.def.value = sym->u.def.value;
645 undef->u.def.section = sym->u.def.section;
646 if (pe_enable_stdcall_fixup == -1)
648 einfo (_("Warning: resolving %s by linking to %s\n"),
649 undef->root.string, sym->root.string);
650 if (! gave_warning_message)
652 gave_warning_message = 1;
653 einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
654 einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
663 gld_${EMULATION_NAME}_after_open ()
665 /* Pass the wacky PE command line options into the output bfd.
666 FIXME: This should be done via a function, rather than by
667 including an internal BFD header. */
669 if (!coff_data (output_bfd)->pe)
670 einfo (_("%F%P: PE operations on non PE file.\n"));
672 pe_data (output_bfd)->pe_opthdr = pe;
673 pe_data (output_bfd)->dll = init[DLLOFF].value;
676 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
677 pe_fixup_stdcalls ();
679 pe_process_import_defs(output_bfd, &link_info);
680 if (link_info.shared)
681 pe_dll_build_sections (output_bfd, &link_info);
684 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
685 if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
687 /* The arm backend needs special fields in the output hash structure.
688 These will only be created if the output format is an arm format,
689 hence we do not support linking and changing output formats at the
690 same time. Use a link followed by objcopy to change output formats. */
691 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
695 /* Find a BFD that can hold the interworking stubs. */
696 LANG_FOR_EACH_INPUT_STATEMENT (is)
698 if (bfd_arm_pe_get_bfd_for_interworking (is->the_bfd, & link_info))
707 lang_input_statement_type *is2;
709 /* Careful - this is a shell script. Watch those dollar signs! */
710 /* Microsoft import libraries have every member named the same,
711 and not in the right order for us to link them correctly. We
712 must detect these and rename the members so that they'll link
713 correctly. There are three types of objects: the head, the
714 thunks, and the sentinel(s). The head is easy; it's the one
715 with idata2. We assume that the sentinels won't have relocs,
716 and the thunks will. It's easier than checking the symbol
717 table for external references. */
718 LANG_FOR_EACH_INPUT_STATEMENT (is)
720 if (is->the_bfd->my_archive)
722 bfd *arch = is->the_bfd->my_archive;
723 if (cur_arch != arch)
728 is2 && is2->the_bfd->my_archive == arch;
729 is2 = (lang_input_statement_type *)is2->next)
731 if (strcmp (is->the_bfd->filename, is2->the_bfd->filename))
738 int idata2 = 0, reloc_count=0;
742 for (sec = is->the_bfd->sections; sec; sec = sec->next)
744 if (strcmp (sec->name, ".idata\$2") == 0)
746 reloc_count += sec->reloc_count;
749 if (idata2) /* .idata2 is the TOC */
751 else if (reloc_count > 0) /* thunks */
756 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
757 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
758 is->the_bfd->filename = new_name;
760 new_name = xmalloc (strlen(is->filename) + 3);
761 sprintf (new_name, "%s.%c", is->filename, seq);
762 is->filename = new_name;
770 gld_${EMULATION_NAME}_before_allocation()
772 #ifdef TARGET_IS_ppcpe
773 /* Here we rummage through the found bfds to collect toc information */
775 LANG_FOR_EACH_INPUT_STATEMENT (is)
777 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
779 /* xgettext:c-format */
780 einfo (_("Errors encountered processing file %s\n"), is->filename);
785 /* We have seen it all. Allocate it, and carry on */
786 ppc_allocate_toc_section (&link_info);
787 #endif /* TARGET_IS_ppcpe */
789 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
790 /* FIXME: we should be able to set the size of the interworking stub
793 Here we rummage through the found bfds to collect glue
794 information. FIXME: should this be based on a command line
795 option? krk@cygnus.com */
797 LANG_FOR_EACH_INPUT_STATEMENT (is)
799 if (! bfd_arm_pe_process_before_allocation
800 (is->the_bfd, & link_info, support_old_code))
802 /* xgettext:c-format */
803 einfo (_("Errors encountered processing file %s for interworking"),
809 /* We have seen it all. Allocate it, and carry on */
810 bfd_arm_pe_allocate_interworking_sections (& link_info);
811 #endif /* TARGET_IS_armpe */
815 /* This is called when an input file isn't recognized as a BFD. We
816 check here for .DEF files and pull them in automatically. */
819 saw_option(char *option)
822 for (i=0; init[i].ptr; i++)
823 if (strcmp (init[i].symbol, option) == 0)
824 return init[i].inited;
829 gld_${EMULATION_NAME}_unrecognized_file(entry)
830 lang_input_statement_type *entry;
833 const char *ext = entry->filename + strlen (entry->filename) - 4;
835 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
837 if (pe_def_file == 0)
838 pe_def_file = def_file_empty ();
839 def_file_parse (entry->filename, pe_def_file);
842 int i, buflen=0, len;
844 for (i=0; i<pe_def_file->num_exports; i++)
846 len = strlen(pe_def_file->exports[i].internal_name);
850 buf = (char *) xmalloc (buflen);
851 for (i=0; i<pe_def_file->num_exports; i++)
853 struct bfd_link_hash_entry *h;
854 sprintf(buf, "_%s", pe_def_file->exports[i].internal_name);
856 h = bfd_link_hash_lookup (link_info.hash, buf, true, true, true);
857 if (h == (struct bfd_link_hash_entry *) NULL)
858 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
859 if (h->type == bfd_link_hash_new)
861 h->type = bfd_link_hash_undefined;
862 h->u.undef.abfd = NULL;
863 bfd_link_add_undef (link_info.hash, h);
868 /* def_file_print (stdout, pe_def_file); */
869 if (pe_def_file->is_dll == 1)
870 link_info.shared = 1;
872 if (pe_def_file->base_address != (bfd_vma)(-1))
875 pe_data (output_bfd)->pe_opthdr.ImageBase =
876 init[IMAGEBASEOFF].value = pe_def_file->base_address;
877 init[IMAGEBASEOFF].inited = 1;
878 if (image_base_statement)
879 image_base_statement->exp =
880 exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase));
884 /* Not sure if these *should* be set */
885 if (pe_def_file->version_major != -1)
887 pe.MajorImageVersion = pe_def_file->version_major;
888 pe.MinorImageVersion = pe_def_file->version_minor;
891 if (pe_def_file->stack_reserve != -1
892 && ! saw_option ("__size_of_stack_reserve__"))
894 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
895 if (pe_def_file->stack_commit != -1)
896 pe.SizeOfStackCommit = pe_def_file->stack_commit;
898 if (pe_def_file->heap_reserve != -1
899 && ! saw_option ("__size_of_heap_reserve__"))
901 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
902 if (pe_def_file->heap_commit != -1)
903 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
914 gld_${EMULATION_NAME}_recognized_file(entry)
915 lang_input_statement_type *entry;
918 #ifdef TARGET_IS_i386pe
919 pe_dll_id_target ("pei-i386");
921 if (bfd_get_format (entry->the_bfd) == bfd_object)
923 const char *ext = entry->filename + strlen (entry->filename) - 4;
924 if (strcmp (ext, ".dll") == 0 || strcmp (ext, ".DLL") == 0)
925 return pe_implied_import_dll (entry->filename);
932 gld_${EMULATION_NAME}_finish ()
934 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
935 struct bfd_link_hash_entry * h;
937 if (thumb_entry_symbol != NULL)
939 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, false, false, true);
941 if (h != (struct bfd_link_hash_entry *) NULL
942 && (h->type == bfd_link_hash_defined
943 || h->type == bfd_link_hash_defweak)
944 && h->u.def.section->output_section != NULL)
946 static char buffer[32];
949 /* Special procesing is required for a Thumb entry symbol. The
950 bottom bit of its address must be set. */
951 val = (h->u.def.value
952 + bfd_get_section_vma (output_bfd,
953 h->u.def.section->output_section)
954 + h->u.def.section->output_offset);
958 /* Now convert this value into a string and store it in entry_symbol
959 where the lang_finish() function will pick it up. */
963 sprintf_vma (buffer + 2, val);
965 if (entry_symbol != NULL && entry_from_cmdline)
966 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
967 thumb_entry_symbol, entry_symbol);
968 entry_symbol = buffer;
971 einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol);
973 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) */
976 if (link_info.shared)
978 pe_dll_fill_sections (output_bfd, &link_info);
979 if (pe_implib_filename)
980 pe_dll_generate_implib (pe_def_file, pe_implib_filename);
982 if (pe_out_def_filename)
983 pe_dll_generate_def_file (pe_out_def_filename);
988 /* Place an orphan section.
990 We use this to put sections in a reasonable place in the file, and
991 to ensure that they are aligned as required.
993 We handle grouped sections here as well. A section named .foo$nn
994 goes into the output section .foo. All grouped sections are sorted
997 Grouped sections for the default sections are handled by the
998 default linker script using wildcards, and are sorted by
1001 static asection *hold_section;
1002 static char *hold_section_name;
1003 static lang_output_section_statement_type *hold_use;
1004 static lang_output_section_statement_type *hold_text;
1005 static lang_output_section_statement_type *hold_rdata;
1006 static lang_output_section_statement_type *hold_data;
1007 static lang_output_section_statement_type *hold_bss;
1009 /* Place an orphan section. We use this to put random SHF_ALLOC
1010 sections in the right segment. */
1014 gld_${EMULATION_NAME}_place_orphan (file, s)
1015 lang_input_statement_type *file;
1018 const char *secname;
1021 if ((s->flags & SEC_ALLOC) == 0)
1024 secname = bfd_get_section_name (s->owner, s);
1026 /* Look through the script to see where to place this section. */
1030 hold_section_name = xstrdup (secname);
1031 if (!link_info.relocateable)
1033 dollar = strchr (hold_section_name, '$');
1039 lang_for_each_statement (gld${EMULATION_NAME}_place_section);
1041 if (hold_use == NULL)
1043 lang_output_section_statement_type *place;
1045 asection *snew, **pps;
1046 lang_statement_list_type *old;
1047 lang_statement_list_type add;
1048 etree_type *address;
1050 /* Try to put the new output section in a reasonable place based
1051 on the section name and section flags. */
1053 if ((s->flags & SEC_HAS_CONTENTS) == 0
1054 && hold_bss != NULL)
1056 else if ((s->flags & SEC_READONLY) == 0
1057 && hold_data != NULL)
1059 else if ((s->flags & SEC_CODE) == 0
1060 && (s->flags & SEC_READONLY) != 0
1061 && hold_rdata != NULL)
1063 else if ((s->flags & SEC_READONLY) != 0
1064 && hold_text != NULL)
1067 /* Choose a unique name for the section. This will be needed if
1068 the same section name appears in the input file with
1069 different loadable or allocateable characteristics. */
1070 outsecname = xstrdup (hold_section_name);
1071 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1077 len = strlen (outsecname);
1078 newname = xmalloc (len + 5);
1079 strcpy (newname, outsecname);
1083 sprintf (newname + len, "%d", i);
1086 while (bfd_get_section_by_name (output_bfd, newname) != NULL);
1089 outsecname = newname;
1092 /* We don't want to free OUTSECNAME, as it may get attached to
1093 the output section statement. */
1095 /* Create the section in the output file, and put it in the
1096 right place. This shuffling is to make the output file look
1098 snew = bfd_make_section (output_bfd, outsecname);
1100 einfo ("%P%F: output format %s cannot represent section called %s\n",
1101 output_bfd->xvec->name, outsecname);
1102 if (place != NULL && place->bfd_section != NULL)
1104 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1107 snew->next = place->bfd_section->next;
1108 place->bfd_section->next = snew;
1111 /* Start building a list of statements for this section. */
1114 lang_list_init (stat_ptr);
1116 if (link_info.relocateable)
1120 /* All sections in an executable must be aligned to a page
1122 address = exp_unop (ALIGN_K,
1123 exp_nameop (NAME, "__section_alignment__"));
1126 lang_enter_output_section_statement (outsecname, address, 0,
1128 (etree_type *) NULL,
1129 (etree_type *) NULL,
1130 (etree_type *) NULL);
1132 hold_use = lang_output_section_statement_lookup (outsecname);
1134 lang_leave_output_section_statement
1135 ((bfd_vma) 0, "*default*",
1136 (struct lang_output_section_phdr_list *) NULL);
1138 /* Now stick the new statement list right after PLACE. */
1141 *add.tail = place->header.next;
1142 place->header.next = add.head;
1149 wild_doit (&hold_use->children, s, hold_use, file);
1152 lang_statement_union_type **pl;
1153 boolean found_dollar;
1154 lang_statement_list_type list;
1156 /* The section name has a '$'. Sort it with the other '$'
1159 found_dollar = false;
1160 for (pl = &hold_use->children.head; *pl != NULL; pl = &(*pl)->next)
1162 lang_input_section_type *ls;
1165 if ((*pl)->header.type != lang_input_section_enum)
1168 ls = &(*pl)->input_section;
1170 lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section);
1171 if (strchr (lname, '$') == NULL)
1178 found_dollar = true;
1179 if (strcmp (secname, lname) < 0)
1184 lang_list_init (&list);
1185 wild_doit (&list, s, hold_use, file);
1186 if (list.head != NULL)
1188 ASSERT (list.head->next == NULL);
1189 list.head->next = *pl;
1194 free (hold_section_name);
1200 gld${EMULATION_NAME}_place_section (s)
1201 lang_statement_union_type *s;
1203 lang_output_section_statement_type *os;
1205 if (s->header.type != lang_output_section_statement_enum)
1208 os = &s->output_section_statement;
1210 if (strcmp (os->name, hold_section_name) == 0
1211 && os->bfd_section != NULL
1212 && ((hold_section->flags & (SEC_LOAD | SEC_ALLOC))
1213 == (os->bfd_section->flags & (SEC_LOAD | SEC_ALLOC))))
1216 if (strcmp (os->name, ".text") == 0)
1218 else if (strcmp (os->name, ".rdata") == 0)
1220 else if (strcmp (os->name, ".data") == 0)
1222 else if (strcmp (os->name, ".bss") == 0)
1227 gld_${EMULATION_NAME}_get_script(isfile)
1230 # Scripts compiled in.
1231 # sed commands to quote an ld script as a C string.
1232 sc="-f stringify.sed"
1234 cat >>e${EMULATION_NAME}.c <<EOF
1238 if (link_info.relocateable == true && config.build_constructors == true)
1241 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1242 echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1243 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1244 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1245 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1246 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1247 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1248 echo ' ; else return' >> e${EMULATION_NAME}.c
1249 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1250 echo '; }' >> e${EMULATION_NAME}.c
1252 cat >>e${EMULATION_NAME}.c <<EOF
1255 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1257 gld_${EMULATION_NAME}_before_parse,
1260 gld_${EMULATION_NAME}_after_parse,
1261 gld_${EMULATION_NAME}_after_open,
1262 after_allocation_default,
1263 set_output_arch_default,
1264 ldemul_default_target,
1265 gld_${EMULATION_NAME}_before_allocation,
1266 gld_${EMULATION_NAME}_get_script,
1267 "${EMULATION_NAME}",
1269 gld_${EMULATION_NAME}_finish, /* finish */
1270 NULL, /* create output section statements */
1271 NULL, /* open dynamic archive */
1272 gld_${EMULATION_NAME}_place_orphan,
1273 gld_${EMULATION_NAME}_set_symbols,
1274 gld_${EMULATION_NAME}_parse_args,
1275 gld_${EMULATION_NAME}_unrecognized_file,
1276 gld_${EMULATION_NAME}_list_options,
1277 gld_${EMULATION_NAME}_recognized_file