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${EMULATION_NAME}.c <<EOF
6 /* This file is part of GLD, the Gnu Linker.
7 Copyright 1995, 96, 97, 98, 99, 2000 Free Software Foundation, Inc.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 /* The original file generated returned different default scripts depending
25 on whether certain switches were set, but these switches pertain to the
26 Linux system and that particular version of coff. In the NT case, we
27 only determine if the subsystem is console or windows in order to select
28 the correct entry point by default. */
34 #include "libiberty.h"
45 #include "coff/internal.h"
47 /* FIXME: This is a BFD internal header file, and we should not be
49 #include "../bfd/libcoff.h"
54 #define TARGET_IS_${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)
142 #define OPTION_WARN_DUPLICATE_EXPORTS (OPTION_THUMB_ENTRY + 1)
143 #define OPTION_IMP_COMPAT (OPTION_WARN_DUPLICATE_EXPORTS + 1)
145 static struct option longopts[] =
148 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
149 {"dll", no_argument, NULL, OPTION_DLL},
150 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
151 {"heap", required_argument, NULL, OPTION_HEAP},
152 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
153 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
154 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
155 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
156 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
157 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
158 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
159 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
160 {"stack", required_argument, NULL, OPTION_STACK},
161 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
162 {"support-old-code", no_argument, NULL, OPTION_SUPPORT_OLD_CODE},
163 {"thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY},
165 /* getopt allows abbreviations, so we do this to stop it from treating -o
166 as an abbreviation for this option */
167 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
168 {"output-def", required_argument, NULL, OPTION_OUT_DEF},
169 {"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
170 {"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
171 {"kill-at", no_argument, NULL, OPTION_KILL_ATS},
172 {"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
173 {"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
174 {"disable-stdcall-fixup", no_argument, NULL, OPTION_DISABLE_STDCALL_FIXUP},
175 {"out-implib", required_argument, NULL, OPTION_IMPLIB_FILENAME},
176 {"warn-duplicate-exports", no_argument, NULL, OPTION_WARN_DUPLICATE_EXPORTS},
177 {"compat-implib", no_argument, NULL, OPTION_IMP_COMPAT},
179 {NULL, no_argument, NULL, 0}
183 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
184 parameters which may be input from the command line */
195 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
197 static definfo init[] =
199 /* imagebase must be first */
200 #define IMAGEBASEOFF 0
201 D(ImageBase,"__image_base__", NT_EXE_IMAGE_BASE),
203 {&dll, sizeof(dll), 0, "__dll__", 0},
204 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
205 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
206 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
207 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
208 D(MajorImageVersion,"__major_image_version__", 1),
209 D(MinorImageVersion,"__minor_image_version__", 0),
210 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
211 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
212 D(Subsystem,"__subsystem__", ${SUBSYSTEM}),
213 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
214 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
215 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
216 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
217 D(LoaderFlags,"__loader_flags__", 0x0),
218 { NULL, 0, 0, NULL, 0 }
222 gld_${EMULATION_NAME}_list_options (file)
225 fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
226 fprintf (file, _(" --dll Set image base to the default for DLLs\n"));
227 fprintf (file, _(" --file-alignment <size> Set file alignment\n"));
228 fprintf (file, _(" --heap <size> Set initial size of the heap\n"));
229 fprintf (file, _(" --image-base <address> Set start address of the executable\n"));
230 fprintf (file, _(" --major-image-version <number> Set version number of the executable\n"));
231 fprintf (file, _(" --major-os-version <number> Set minimum required OS version\n"));
232 fprintf (file, _(" --major-subsystem-version <number> Set minimum required OS subsystem version\n"));
233 fprintf (file, _(" --minor-image-version <number> Set revision number of the executable\n"));
234 fprintf (file, _(" --minor-os-version <number> Set minimum required OS revision\n"));
235 fprintf (file, _(" --minor-subsystem-version <number> Set minimum required OS subsystem revision\n"));
236 fprintf (file, _(" --section-alignment <size> Set section alignment\n"));
237 fprintf (file, _(" --stack <size> Set size of the initial stack\n"));
238 fprintf (file, _(" --subsystem <name>[:<version>] Set required OS subsystem [& version]\n"));
239 fprintf (file, _(" --support-old-code Support interworking with old code\n"));
240 fprintf (file, _(" --thumb-entry=<symbol> Set the entry point to be Thumb <symbol>\n"));
242 fprintf (file, _(" --add-stdcall-alias Export symbols with and without @nn\n"));
243 fprintf (file, _(" --disable-stdcall-fixup Don't link _sym to _sym@nn\n"));
244 fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
245 fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
246 fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
247 fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
248 fprintf (file, _(" --out-implib <file> Generate import library\n"));
249 fprintf (file, _(" --output-def <file> Generate a .DEF file for the built DLL\n"));
250 fprintf (file, _(" --warn-duplicate-exports Warn about duplicate exports.\n"));
251 fprintf (file, _(" --compat-implib Create backward compatible import libs;\n"));
252 fprintf (file, _(" create __imp_<SYMBOL> as well.\n"));
257 set_pe_name (name, val)
262 /* Find the name and set it. */
263 for (i = 0; init[i].ptr; i++)
265 if (strcmp (name, init[i].symbol) == 0)
290 { "native", 1, "NtProcessStartup" },
291 { "windows", 2, "WinMainCRTStartup" },
292 { "console", 3, "mainCRTStartup" },
294 /* The Microsoft linker does not recognize this. */
297 { "posix", 7, "__PosixProcessStartup"},
301 sver = strchr (optarg, ':');
303 len = strlen (optarg);
309 set_pe_name ("__major_subsystem_version__",
310 strtoul (sver + 1, &end, 0));
312 set_pe_name ("__minor_subsystem_version__",
313 strtoul (end + 1, &end, 0));
315 einfo (_("%P: warning: bad version number in -subsystem option\n"));
318 for (i = 0; v[i].name; i++)
320 if (strncmp (optarg, v[i].name, len) == 0
321 && v[i].name[len] == '\0')
323 const char *initial_symbol_char;
326 set_pe_name ("__subsystem__", v[i].value);
328 initial_symbol_char = ${INITIAL_SYMBOL_CHAR};
329 if (*initial_symbol_char == '\0')
335 /* lang_add_entry expects its argument to be permanently
336 allocated, so we don't free this string. */
337 alc_entry = xmalloc (strlen (initial_symbol_char)
338 + strlen (v[i].entry)
340 strcpy (alc_entry, initial_symbol_char);
341 strcat (alc_entry, v[i].entry);
345 lang_add_entry (entry, 1);
351 einfo (_("%P%F: invalid subsystem type %s\n"), optarg);
363 set_pe_name (name, strtoul (optarg, &end, 0));
366 einfo (_("%P%F: invalid hex number for PE parameter '%s'\n"), optarg);
372 set_pe_stack_heap (resname, comname)
376 set_pe_value (resname);
381 set_pe_value (comname);
384 einfo (_("%P%F: strange hex info for PE parameter '%s'\n"), optarg);
390 gld_${EMULATION_NAME}_parse_args(argc, argv)
396 int prevoptind = optind;
397 int prevopterr = opterr;
399 static int lastoptind = -1;
401 if (lastoptind != optind)
407 optc = getopt_long_only (argc, argv, "-", longopts, &longind);
418 case OPTION_BASE_FILE:
419 link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
420 if (link_info.base_file == NULL)
422 /* xgettext:c-format */
423 fprintf (stderr, _("%s: Can't open base file %s\n"),
424 program_name, optarg);
431 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
434 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
436 case OPTION_SUBSYSTEM:
439 case OPTION_MAJOR_OS_VERSION:
440 set_pe_value ("__major_os_version__");
442 case OPTION_MINOR_OS_VERSION:
443 set_pe_value ("__minor_os_version__");
445 case OPTION_MAJOR_SUBSYSTEM_VERSION:
446 set_pe_value ("__major_subsystem_version__");
448 case OPTION_MINOR_SUBSYSTEM_VERSION:
449 set_pe_value ("__minor_subsystem_version__");
451 case OPTION_MAJOR_IMAGE_VERSION:
452 set_pe_value ("__major_image_version__");
454 case OPTION_MINOR_IMAGE_VERSION:
455 set_pe_value ("__minor_image_version__");
457 case OPTION_FILE_ALIGNMENT:
458 set_pe_value ("__file_alignment__");
460 case OPTION_SECTION_ALIGNMENT:
461 set_pe_value ("__section_alignment__");
464 set_pe_name ("__dll__", 1);
466 case OPTION_IMAGE_BASE:
467 set_pe_value ("__image_base__");
469 case OPTION_SUPPORT_OLD_CODE:
470 support_old_code = 1;
472 case OPTION_THUMB_ENTRY:
473 thumb_entry_symbol = optarg;
477 pe_out_def_filename = xstrdup (optarg);
479 case OPTION_EXPORT_ALL:
480 pe_dll_export_everything = 1;
482 case OPTION_EXCLUDE_SYMBOLS:
483 pe_dll_add_excludes (optarg);
485 case OPTION_KILL_ATS:
488 case OPTION_STDCALL_ALIASES:
489 pe_dll_stdcall_aliases = 1;
491 case OPTION_ENABLE_STDCALL_FIXUP:
492 pe_enable_stdcall_fixup = 1;
494 case OPTION_DISABLE_STDCALL_FIXUP:
495 pe_enable_stdcall_fixup = 0;
497 case OPTION_IMPLIB_FILENAME:
498 pe_implib_filename = xstrdup (optarg);
500 case OPTION_WARN_DUPLICATE_EXPORTS:
501 pe_dll_warn_dup_exports = 1;
503 case OPTION_IMP_COMPAT:
504 pe_dll_compat_implib = 1;
511 /* Assign values to the special symbols before the linker script is
515 gld_${EMULATION_NAME}_set_symbols ()
517 /* Run through and invent symbols for all the
518 names and insert the defaults. */
520 lang_statement_list_type *save;
522 if (!init[IMAGEBASEOFF].inited)
524 if (link_info.relocateable)
525 init[IMAGEBASEOFF].value = 0;
526 else if (init[DLLOFF].value || link_info.shared)
527 init[IMAGEBASEOFF].value = NT_DLL_IMAGE_BASE;
529 init[IMAGEBASEOFF].value = NT_EXE_IMAGE_BASE;
532 /* Don't do any symbol assignments if this is a relocateable link. */
533 if (link_info.relocateable)
536 /* Glue the assignments into the abs section */
539 stat_ptr = &(abs_output_section->children);
541 for (j = 0; init[j].ptr; j++)
543 long val = init[j].value;
544 lang_assignment_statement_type *rv;
545 rv = lang_add_assignment (exp_assop ('=' ,init[j].symbol, exp_intop (val)));
546 if (init[j].size == sizeof(short))
547 *(short *)init[j].ptr = val;
548 else if (init[j].size == sizeof(int))
549 *(int *)init[j].ptr = val;
550 else if (init[j].size == sizeof(long))
551 *(long *)init[j].ptr = val;
552 /* This might be a long long or other special type. */
553 else if (init[j].size == sizeof(bfd_vma))
554 *(bfd_vma *)init[j].ptr = val;
556 if (j == IMAGEBASEOFF)
557 image_base_statement = rv;
559 /* Restore the pointer. */
562 if (pe.FileAlignment >
565 einfo (_("%P: warning, file alignment > section alignment.\n"));
569 /* This is called after the linker script and the command line options
573 gld_${EMULATION_NAME}_after_parse ()
575 /* The Windows libraries are designed for the linker to treat the
576 entry point as an undefined symbol. Otherwise, the .obj that
577 defines mainCRTStartup is brought in because it is the first
578 encountered in libc.lib and it has other symbols in it which will
579 be pulled in by the link process. To avoid this, we act as
580 though the user specified -u with the entry point symbol.
582 This function is called after the linker script and command line
583 options have been read, so at this point we know the right entry
584 point. This function is called before the input files are
585 opened, so registering the symbol as undefined will make a
588 if (! link_info.relocateable && entry_symbol != NULL)
589 ldlang_add_undef (entry_symbol);
592 static struct bfd_link_hash_entry *pe_undef_found_sym;
595 pe_undef_cdecl_match (h, string)
596 struct bfd_link_hash_entry *h;
599 int sl = strlen (string);
600 if (h->type == bfd_link_hash_defined
601 && strncmp (h->root.string, string, sl) == 0
602 && h->root.string[sl] == '@')
604 pe_undef_found_sym = h;
613 static int gave_warning_message = 0;
614 struct bfd_link_hash_entry *undef, *sym;
616 for (undef = link_info.hash->undefs; undef; undef=undef->next)
617 if (undef->type == bfd_link_hash_undefined)
619 at = strchr (undef->root.string, '@');
622 /* The symbol is a stdcall symbol, so let's look for a cdecl
623 symbol with the same name and resolve to that */
624 char *cname = xstrdup (undef->root.string);
625 at = strchr (cname, '@');
627 sym = bfd_link_hash_lookup (link_info.hash, cname, 0, 0, 1);
628 if (sym && sym->type == bfd_link_hash_defined)
630 undef->type = bfd_link_hash_defined;
631 undef->u.def.value = sym->u.def.value;
632 undef->u.def.section = sym->u.def.section;
633 if (pe_enable_stdcall_fixup == -1)
635 einfo (_("Warning: resolving %s by linking to %s\n"),
636 undef->root.string, cname);
637 if (! gave_warning_message)
639 gave_warning_message = 1;
640 einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
641 einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
648 /* The symbol is a cdecl symbol, so we look for stdcall
649 symbols - which means scanning the whole symbol table */
650 pe_undef_found_sym = 0;
651 bfd_link_hash_traverse (link_info.hash, pe_undef_cdecl_match,
652 (PTR) undef->root.string);
653 sym = pe_undef_found_sym;
656 undef->type = bfd_link_hash_defined;
657 undef->u.def.value = sym->u.def.value;
658 undef->u.def.section = sym->u.def.section;
659 if (pe_enable_stdcall_fixup == -1)
661 einfo (_("Warning: resolving %s by linking to %s\n"),
662 undef->root.string, sym->root.string);
663 if (! gave_warning_message)
665 gave_warning_message = 1;
666 einfo(_("Use --enable-stdcall-fixup to disable these warnings\n"));
667 einfo(_("Use --disable-stdcall-fixup to disable these fixups\n"));
676 gld_${EMULATION_NAME}_after_open ()
678 /* Pass the wacky PE command line options into the output bfd.
679 FIXME: This should be done via a function, rather than by
680 including an internal BFD header. */
682 if (!coff_data (output_bfd)->pe)
683 einfo (_("%F%P: PE operations on non PE file.\n"));
685 pe_data (output_bfd)->pe_opthdr = pe;
686 pe_data (output_bfd)->dll = init[DLLOFF].value;
689 if (pe_enable_stdcall_fixup) /* -1=warn or 1=disable */
690 pe_fixup_stdcalls ();
692 pe_process_import_defs(output_bfd, &link_info);
693 if (link_info.shared)
694 pe_dll_build_sections (output_bfd, &link_info);
697 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
698 if (strstr (bfd_get_target (output_bfd), "arm") == NULL)
700 /* The arm backend needs special fields in the output hash structure.
701 These will only be created if the output format is an arm format,
702 hence we do not support linking and changing output formats at the
703 same time. Use a link followed by objcopy to change output formats. */
704 einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n");
708 /* Find a BFD that can hold the interworking stubs. */
709 LANG_FOR_EACH_INPUT_STATEMENT (is)
711 if (bfd_arm_pe_get_bfd_for_interworking (is->the_bfd, & link_info))
720 lang_input_statement_type *is2;
722 /* Careful - this is a shell script. Watch those dollar signs! */
723 /* Microsoft import libraries have every member named the same,
724 and not in the right order for us to link them correctly. We
725 must detect these and rename the members so that they'll link
726 correctly. There are three types of objects: the head, the
727 thunks, and the sentinel(s). The head is easy; it's the one
728 with idata2. We assume that the sentinels won't have relocs,
729 and the thunks will. It's easier than checking the symbol
730 table for external references. */
731 LANG_FOR_EACH_INPUT_STATEMENT (is)
733 if (is->the_bfd->my_archive)
735 bfd *arch = is->the_bfd->my_archive;
736 if (cur_arch != arch)
741 is2 && is2->the_bfd->my_archive == arch;
742 is2 = (lang_input_statement_type *)is2->next)
744 if (strcmp (is->the_bfd->filename, is2->the_bfd->filename))
751 int idata2 = 0, reloc_count=0;
755 for (sec = is->the_bfd->sections; sec; sec = sec->next)
757 if (strcmp (sec->name, ".idata\$2") == 0)
759 reloc_count += sec->reloc_count;
762 if (idata2) /* .idata2 is the TOC */
764 else if (reloc_count > 0) /* thunks */
769 new_name = xmalloc (strlen (is->the_bfd->filename) + 3);
770 sprintf (new_name, "%s.%c", is->the_bfd->filename, seq);
771 is->the_bfd->filename = new_name;
773 new_name = xmalloc (strlen(is->filename) + 3);
774 sprintf (new_name, "%s.%c", is->filename, seq);
775 is->filename = new_name;
783 gld_${EMULATION_NAME}_before_allocation()
785 #ifdef TARGET_IS_ppcpe
786 /* Here we rummage through the found bfds to collect toc information */
788 LANG_FOR_EACH_INPUT_STATEMENT (is)
790 if (!ppc_process_before_allocation (is->the_bfd, &link_info))
792 /* xgettext:c-format */
793 einfo (_("Errors encountered processing file %s\n"), is->filename);
798 /* We have seen it all. Allocate it, and carry on */
799 ppc_allocate_toc_section (&link_info);
800 #endif /* TARGET_IS_ppcpe */
802 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
803 /* FIXME: we should be able to set the size of the interworking stub
806 Here we rummage through the found bfds to collect glue
807 information. FIXME: should this be based on a command line
810 LANG_FOR_EACH_INPUT_STATEMENT (is)
812 if (! bfd_arm_pe_process_before_allocation
813 (is->the_bfd, & link_info, support_old_code))
815 /* xgettext:c-format */
816 einfo (_("Errors encountered processing file %s for interworking"),
822 /* We have seen it all. Allocate it, and carry on */
823 bfd_arm_pe_allocate_interworking_sections (& link_info);
824 #endif /* TARGET_IS_armpe */
828 /* This is called when an input file isn't recognized as a BFD. We
829 check here for .DEF files and pull them in automatically. */
832 saw_option(char *option)
835 for (i=0; init[i].ptr; i++)
836 if (strcmp (init[i].symbol, option) == 0)
837 return init[i].inited;
842 gld_${EMULATION_NAME}_unrecognized_file(entry)
843 lang_input_statement_type *entry;
846 const char *ext = entry->filename + strlen (entry->filename) - 4;
848 if (strcmp (ext, ".def") == 0 || strcmp (ext, ".DEF") == 0)
850 if (pe_def_file == 0)
851 pe_def_file = def_file_empty ();
852 def_file_parse (entry->filename, pe_def_file);
855 int i, buflen=0, len;
857 for (i=0; i<pe_def_file->num_exports; i++)
859 len = strlen(pe_def_file->exports[i].internal_name);
863 buf = (char *) xmalloc (buflen);
864 for (i=0; i<pe_def_file->num_exports; i++)
866 struct bfd_link_hash_entry *h;
867 sprintf(buf, "_%s", pe_def_file->exports[i].internal_name);
869 h = bfd_link_hash_lookup (link_info.hash, buf, true, true, true);
870 if (h == (struct bfd_link_hash_entry *) NULL)
871 einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n"));
872 if (h->type == bfd_link_hash_new)
874 h->type = bfd_link_hash_undefined;
875 h->u.undef.abfd = NULL;
876 bfd_link_add_undef (link_info.hash, h);
881 /* def_file_print (stdout, pe_def_file); */
882 if (pe_def_file->is_dll == 1)
883 link_info.shared = 1;
885 if (pe_def_file->base_address != (bfd_vma)(-1))
888 pe_data (output_bfd)->pe_opthdr.ImageBase =
889 init[IMAGEBASEOFF].value = pe_def_file->base_address;
890 init[IMAGEBASEOFF].inited = 1;
891 if (image_base_statement)
892 image_base_statement->exp =
893 exp_assop ('=', "__image_base__", exp_intop (pe.ImageBase));
897 /* Not sure if these *should* be set */
898 if (pe_def_file->version_major != -1)
900 pe.MajorImageVersion = pe_def_file->version_major;
901 pe.MinorImageVersion = pe_def_file->version_minor;
904 if (pe_def_file->stack_reserve != -1
905 && ! saw_option ("__size_of_stack_reserve__"))
907 pe.SizeOfStackReserve = pe_def_file->stack_reserve;
908 if (pe_def_file->stack_commit != -1)
909 pe.SizeOfStackCommit = pe_def_file->stack_commit;
911 if (pe_def_file->heap_reserve != -1
912 && ! saw_option ("__size_of_heap_reserve__"))
914 pe.SizeOfHeapReserve = pe_def_file->heap_reserve;
915 if (pe_def_file->heap_commit != -1)
916 pe.SizeOfHeapCommit = pe_def_file->heap_commit;
927 gld_${EMULATION_NAME}_recognized_file(entry)
928 lang_input_statement_type *entry;
931 #ifdef TARGET_IS_i386pe
932 pe_dll_id_target ("pei-i386");
934 if (bfd_get_format (entry->the_bfd) == bfd_object)
936 const char *ext = entry->filename + strlen (entry->filename) - 4;
937 if (strcmp (ext, ".dll") == 0 || strcmp (ext, ".DLL") == 0)
938 return pe_implied_import_dll (entry->filename);
945 gld_${EMULATION_NAME}_finish ()
947 #if defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe)
948 struct bfd_link_hash_entry * h;
950 if (thumb_entry_symbol != NULL)
952 h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, false, false, true);
954 if (h != (struct bfd_link_hash_entry *) NULL
955 && (h->type == bfd_link_hash_defined
956 || h->type == bfd_link_hash_defweak)
957 && h->u.def.section->output_section != NULL)
959 static char buffer[32];
962 /* Special procesing is required for a Thumb entry symbol. The
963 bottom bit of its address must be set. */
964 val = (h->u.def.value
965 + bfd_get_section_vma (output_bfd,
966 h->u.def.section->output_section)
967 + h->u.def.section->output_offset);
971 /* Now convert this value into a string and store it in entry_symbol
972 where the lang_finish() function will pick it up. */
976 sprintf_vma (buffer + 2, val);
978 if (entry_symbol != NULL && entry_from_cmdline)
979 einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"),
980 thumb_entry_symbol, entry_symbol);
981 entry_symbol = buffer;
984 einfo (_("%P: warning: connot find thumb start symbol %s\n"), thumb_entry_symbol);
986 #endif /* defined(TARGET_IS_armpe) || defined(TARGET_IS_arm_epoc_pe) */
989 if (link_info.shared)
991 pe_dll_fill_sections (output_bfd, &link_info);
992 if (pe_implib_filename)
993 pe_dll_generate_implib (pe_def_file, pe_implib_filename);
995 if (pe_out_def_filename)
996 pe_dll_generate_def_file (pe_out_def_filename);
1001 /* Place an orphan section.
1003 We use this to put sections in a reasonable place in the file, and
1004 to ensure that they are aligned as required.
1006 We handle grouped sections here as well. A section named .foo$nn
1007 goes into the output section .foo. All grouped sections are sorted
1010 Grouped sections for the default sections are handled by the
1011 default linker script using wildcards, and are sorted by
1014 static asection *hold_section;
1015 static char *hold_section_name;
1016 static lang_output_section_statement_type *hold_use;
1017 static lang_output_section_statement_type *hold_text;
1018 static lang_output_section_statement_type *hold_rdata;
1019 static lang_output_section_statement_type *hold_data;
1020 static lang_output_section_statement_type *hold_bss;
1022 /* Place an orphan section. We use this to put random SHF_ALLOC
1023 sections in the right segment. */
1027 gld_${EMULATION_NAME}_place_orphan (file, s)
1028 lang_input_statement_type *file;
1031 const char *secname;
1034 if ((s->flags & SEC_ALLOC) == 0)
1037 secname = bfd_get_section_name (s->owner, s);
1039 /* Look through the script to see where to place this section. */
1043 hold_section_name = xstrdup (secname);
1044 if (!link_info.relocateable)
1046 dollar = strchr (hold_section_name, '$');
1052 lang_for_each_statement (gld${EMULATION_NAME}_place_section);
1054 if (hold_use == NULL)
1056 lang_output_section_statement_type *place;
1058 asection *snew, **pps;
1059 lang_statement_list_type *old;
1060 lang_statement_list_type add;
1061 etree_type *address;
1063 /* Try to put the new output section in a reasonable place based
1064 on the section name and section flags. */
1066 if ((s->flags & SEC_HAS_CONTENTS) == 0
1067 && hold_bss != NULL)
1069 else if ((s->flags & SEC_READONLY) == 0
1070 && hold_data != NULL)
1072 else if ((s->flags & SEC_CODE) == 0
1073 && (s->flags & SEC_READONLY) != 0
1074 && hold_rdata != NULL)
1076 else if ((s->flags & SEC_READONLY) != 0
1077 && hold_text != NULL)
1080 /* Choose a unique name for the section. This will be needed if
1081 the same section name appears in the input file with
1082 different loadable or allocateable characteristics. */
1083 outsecname = xstrdup (hold_section_name);
1084 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1090 len = strlen (outsecname);
1091 newname = xmalloc (len + 5);
1092 strcpy (newname, outsecname);
1096 sprintf (newname + len, "%d", i);
1099 while (bfd_get_section_by_name (output_bfd, newname) != NULL);
1102 outsecname = newname;
1105 /* We don't want to free OUTSECNAME, as it may get attached to
1106 the output section statement. */
1108 /* Create the section in the output file, and put it in the
1109 right place. This shuffling is to make the output file look
1111 snew = bfd_make_section (output_bfd, outsecname);
1113 einfo ("%P%F: output format %s cannot represent section called %s\n",
1114 output_bfd->xvec->name, outsecname);
1115 if (place != NULL && place->bfd_section != NULL)
1117 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1120 snew->next = place->bfd_section->next;
1121 place->bfd_section->next = snew;
1124 /* Start building a list of statements for this section. */
1127 lang_list_init (stat_ptr);
1129 if (link_info.relocateable)
1133 /* All sections in an executable must be aligned to a page
1135 address = exp_unop (ALIGN_K,
1136 exp_nameop (NAME, "__section_alignment__"));
1139 lang_enter_output_section_statement (outsecname, address, 0,
1141 (etree_type *) NULL,
1142 (etree_type *) NULL,
1143 (etree_type *) NULL);
1145 hold_use = lang_output_section_statement_lookup (outsecname);
1147 lang_leave_output_section_statement
1148 ((bfd_vma) 0, "*default*",
1149 (struct lang_output_section_phdr_list *) NULL,
1152 /* Now stick the new statement list right after PLACE. */
1155 *add.tail = place->header.next;
1156 place->header.next = add.head;
1163 wild_doit (&hold_use->children, s, hold_use, file);
1166 lang_statement_union_type **pl;
1167 boolean found_dollar;
1168 lang_statement_list_type list;
1170 /* The section name has a '$'. Sort it with the other '$'
1173 found_dollar = false;
1174 for (pl = &hold_use->children.head; *pl != NULL; pl = &(*pl)->next)
1176 lang_input_section_type *ls;
1179 if ((*pl)->header.type != lang_input_section_enum)
1182 ls = &(*pl)->input_section;
1184 lname = bfd_get_section_name (ls->ifile->the_bfd, ls->section);
1185 if (strchr (lname, '$') == NULL)
1192 found_dollar = true;
1193 if (strcmp (secname, lname) < 0)
1198 lang_list_init (&list);
1199 wild_doit (&list, s, hold_use, file);
1200 if (list.head != NULL)
1202 ASSERT (list.head->next == NULL);
1203 list.head->next = *pl;
1208 free (hold_section_name);
1214 gld${EMULATION_NAME}_place_section (s)
1215 lang_statement_union_type *s;
1217 lang_output_section_statement_type *os;
1219 if (s->header.type != lang_output_section_statement_enum)
1222 os = &s->output_section_statement;
1224 if (strcmp (os->name, hold_section_name) == 0
1225 && os->bfd_section != NULL
1226 && ((hold_section->flags & (SEC_LOAD | SEC_ALLOC))
1227 == (os->bfd_section->flags & (SEC_LOAD | SEC_ALLOC))))
1230 if (strcmp (os->name, ".text") == 0)
1232 else if (strcmp (os->name, ".rdata") == 0)
1234 else if (strcmp (os->name, ".data") == 0)
1236 else if (strcmp (os->name, ".bss") == 0)
1241 gld_${EMULATION_NAME}_get_script(isfile)
1244 # Scripts compiled in.
1245 # sed commands to quote an ld script as a C string.
1246 sc="-f stringify.sed"
1248 cat >>e${EMULATION_NAME}.c <<EOF
1252 if (link_info.relocateable == true && config.build_constructors == true)
1255 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1256 echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1257 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1258 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1259 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1260 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1261 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1262 echo ' ; else return' >> e${EMULATION_NAME}.c
1263 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1264 echo '; }' >> e${EMULATION_NAME}.c
1266 cat >>e${EMULATION_NAME}.c <<EOF
1269 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1271 gld_${EMULATION_NAME}_before_parse,
1274 gld_${EMULATION_NAME}_after_parse,
1275 gld_${EMULATION_NAME}_after_open,
1276 after_allocation_default,
1277 set_output_arch_default,
1278 ldemul_default_target,
1279 gld_${EMULATION_NAME}_before_allocation,
1280 gld_${EMULATION_NAME}_get_script,
1281 "${EMULATION_NAME}",
1283 gld_${EMULATION_NAME}_finish, /* finish */
1284 NULL, /* create output section statements */
1285 NULL, /* open dynamic archive */
1286 gld_${EMULATION_NAME}_place_orphan,
1287 gld_${EMULATION_NAME}_set_symbols,
1288 gld_${EMULATION_NAME}_parse_args,
1289 gld_${EMULATION_NAME}_unrecognized_file,
1290 gld_${EMULATION_NAME}_list_options,
1291 gld_${EMULATION_NAME}_recognized_file