1 # This shell script emits a C file. -*- C -*-
2 # It does some substitutions.
3 if [ -z "$MACHINE" ]; then
6 OUTPUT_ARCH=${ARCH}:${MACHINE}
8 cat >e${EMULATION_NAME}.c <<EOF
9 /* This file is part of GLD, the Gnu Linker.
10 Copyright 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004
11 Free Software Foundation, Inc.
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
28 /* The original file generated returned different default scripts depending
29 on whether certain switches were set, but these switches pertain to the
30 Linux system and that particular version of coff. In the NT case, we
31 only determine if the subsystem is console or windows in order to select
32 the correct entry point by default. */
38 #include "libiberty.h"
49 #include "coff/internal.h"
50 #include "../bfd/libcoff.h"
52 #define TARGET_IS_${EMULATION_NAME}
54 static struct internal_extra_pe_aouthdr pe;
57 extern const char *output_filename;
60 gld_${EMULATION_NAME}_before_parse (void)
62 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
63 output_filename = "a.exe";
66 /* PE format extra command line options. */
68 /* Used for setting flags in the PE header. */
69 #define OPTION_BASE_FILE (300 + 1)
70 #define OPTION_DLL (OPTION_BASE_FILE + 1)
71 #define OPTION_FILE_ALIGNMENT (OPTION_DLL + 1)
72 #define OPTION_IMAGE_BASE (OPTION_FILE_ALIGNMENT + 1)
73 #define OPTION_MAJOR_IMAGE_VERSION (OPTION_IMAGE_BASE + 1)
74 #define OPTION_MAJOR_OS_VERSION (OPTION_MAJOR_IMAGE_VERSION + 1)
75 #define OPTION_MAJOR_SUBSYSTEM_VERSION (OPTION_MAJOR_OS_VERSION + 1)
76 #define OPTION_MINOR_IMAGE_VERSION (OPTION_MAJOR_SUBSYSTEM_VERSION + 1)
77 #define OPTION_MINOR_OS_VERSION (OPTION_MINOR_IMAGE_VERSION + 1)
78 #define OPTION_MINOR_SUBSYSTEM_VERSION (OPTION_MINOR_OS_VERSION + 1)
79 #define OPTION_SECTION_ALIGNMENT (OPTION_MINOR_SUBSYSTEM_VERSION + 1)
80 #define OPTION_STACK (OPTION_SECTION_ALIGNMENT + 1)
81 #define OPTION_SUBSYSTEM (OPTION_STACK + 1)
82 #define OPTION_HEAP (OPTION_SUBSYSTEM + 1)
85 gld${EMULATION_NAME}_add_options
86 (int ns ATTRIBUTE_UNUSED, char **shortopts ATTRIBUTE_UNUSED, int nl,
87 struct option **longopts, int nrl ATTRIBUTE_UNUSED,
88 struct option **really_longopts ATTRIBUTE_UNUSED)
90 static const struct option xtra_long[] = {
92 {"base-file", required_argument, NULL, OPTION_BASE_FILE},
93 {"dll", no_argument, NULL, OPTION_DLL},
94 {"file-alignment", required_argument, NULL, OPTION_FILE_ALIGNMENT},
95 {"heap", required_argument, NULL, OPTION_HEAP},
96 {"image-base", required_argument, NULL, OPTION_IMAGE_BASE},
97 {"major-image-version", required_argument, NULL, OPTION_MAJOR_IMAGE_VERSION},
98 {"major-os-version", required_argument, NULL, OPTION_MAJOR_OS_VERSION},
99 {"major-subsystem-version", required_argument, NULL, OPTION_MAJOR_SUBSYSTEM_VERSION},
100 {"minor-image-version", required_argument, NULL, OPTION_MINOR_IMAGE_VERSION},
101 {"minor-os-version", required_argument, NULL, OPTION_MINOR_OS_VERSION},
102 {"minor-subsystem-version", required_argument, NULL, OPTION_MINOR_SUBSYSTEM_VERSION},
103 {"section-alignment", required_argument, NULL, OPTION_SECTION_ALIGNMENT},
104 {"stack", required_argument, NULL, OPTION_STACK},
105 {"subsystem", required_argument, NULL, OPTION_SUBSYSTEM},
106 {NULL, no_argument, NULL, 0}
109 *longopts = (struct option *)
110 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
111 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
115 /* PE/WIN32; added routines to get the subsystem type, heap and/or stack
116 parameters which may be input from the command line */
126 #define D(field,symbol,def) {&pe.field,sizeof(pe.field), def, symbol,0}
128 static definfo init[] =
130 /* imagebase must be first */
131 #define IMAGEBASEOFF 0
132 D(ImageBase,"__image_base__", BEOS_EXE_IMAGE_BASE),
134 {&dll, sizeof(dll), 0, "__dll__", 0},
135 D(SectionAlignment,"__section_alignment__", PE_DEF_SECTION_ALIGNMENT),
136 D(FileAlignment,"__file_alignment__", PE_DEF_FILE_ALIGNMENT),
137 D(MajorOperatingSystemVersion,"__major_os_version__", 4),
138 D(MinorOperatingSystemVersion,"__minor_os_version__", 0),
139 D(MajorImageVersion,"__major_image_version__", 1),
140 D(MinorImageVersion,"__minor_image_version__", 0),
141 D(MajorSubsystemVersion,"__major_subsystem_version__", 4),
142 D(MinorSubsystemVersion,"__minor_subsystem_version__", 0),
143 D(Subsystem,"__subsystem__", 3),
144 D(SizeOfStackReserve,"__size_of_stack_reserve__", 0x2000000),
145 D(SizeOfStackCommit,"__size_of_stack_commit__", 0x1000),
146 D(SizeOfHeapReserve,"__size_of_heap_reserve__", 0x100000),
147 D(SizeOfHeapCommit,"__size_of_heap_commit__", 0x1000),
148 D(LoaderFlags,"__loader_flags__", 0x0),
149 { NULL, 0, 0, NULL, 0 }
154 set_pe_name (char *name, long val)
157 /* Find the name and set it. */
158 for (i = 0; init[i].ptr; i++)
160 if (strcmp (name, init[i].symbol) == 0)
172 set_pe_subsystem (void)
185 { "native", 1, "_NtProcessStartup" },
186 { "windows", 2, "_WinMainCRTStartup" },
187 { "wwindows", 2, "_wWinMainCRTStartup" },
188 { "console", 3, "_mainCRTStartup" },
189 { "wconsole", 3, "_wmainCRTStartup" },
190 { "posix", 7, "___PosixProcessStartup"},
194 sver = strchr (optarg, ':');
196 len = strlen (optarg);
202 set_pe_name ("__major_subsystem_version__",
203 strtoul (sver + 1, &end, 0));
205 set_pe_name ("__minor_subsystem_version__",
206 strtoul (end + 1, &end, 0));
208 einfo ("%P: warning: bad version number in -subsystem option\n");
211 for (i = 0; v[i].name; i++)
213 if (strncmp (optarg, v[i].name, len) == 0
214 && v[i].name[len] == '\0')
216 set_pe_name ("__subsystem__", v[i].value);
218 /* If the subsystem is windows, we use a different entry
219 point. We also register the entry point as an undefined
220 symbol. from lang_add_entry() The reason we do
221 this is so that the user
222 doesn't have to because they would have to use the -u
223 switch if they were specifying an entry point other than
224 _mainCRTStartup. Specifically, if creating a windows
225 application, entry point _WinMainCRTStartup must be
226 specified. What I have found for non console
227 applications (entry not _mainCRTStartup) is that the .obj
228 that contains mainCRTStartup is brought in since it is
229 the first encountered in libc.lib and it has other
230 symbols in it which will be pulled in by the link
231 process. To avoid this, adding -u with the entry point
232 name specified forces the correct .obj to be used. We
233 can avoid making the user do this by always adding the
234 entry point name as an undefined symbol. */
235 lang_add_entry (v[i].entry, 1);
240 einfo ("%P%F: invalid subsystem type %s\n", optarg);
245 set_pe_value (char *name)
248 set_pe_name (name, strtoul (optarg, &end, 0));
251 einfo ("%P%F: invalid hex number for PE parameter '%s'\n", optarg);
258 set_pe_stack_heap (char *resname, char *comname)
260 set_pe_value (resname);
264 set_pe_value (comname);
268 einfo ("%P%F: strange hex info for PE parameter '%s'\n", optarg);
274 gld${EMULATION_NAME}_handle_option (int optc)
281 case OPTION_BASE_FILE:
282 link_info.base_file = fopen (optarg, FOPEN_WB);
283 if (link_info.base_file == NULL)
285 fprintf (stderr, "%s: Can't open base file %s\n",
286 program_name, optarg);
293 set_pe_stack_heap ("__size_of_heap_reserve__", "__size_of_heap_commit__");
296 set_pe_stack_heap ("__size_of_stack_reserve__", "__size_of_stack_commit__");
298 case OPTION_SUBSYSTEM:
301 case OPTION_MAJOR_OS_VERSION:
302 set_pe_value ("__major_os_version__");
304 case OPTION_MINOR_OS_VERSION:
305 set_pe_value ("__minor_os_version__");
307 case OPTION_MAJOR_SUBSYSTEM_VERSION:
308 set_pe_value ("__major_subsystem_version__");
310 case OPTION_MINOR_SUBSYSTEM_VERSION:
311 set_pe_value ("__minor_subsystem_version__");
313 case OPTION_MAJOR_IMAGE_VERSION:
314 set_pe_value ("__major_image_version__");
316 case OPTION_MINOR_IMAGE_VERSION:
317 set_pe_value ("__minor_image_version__");
319 case OPTION_FILE_ALIGNMENT:
320 set_pe_value ("__file_alignment__");
322 case OPTION_SECTION_ALIGNMENT:
323 set_pe_value ("__section_alignment__");
326 set_pe_name ("__dll__", 1);
328 case OPTION_IMAGE_BASE:
329 set_pe_value ("__image_base__");
335 /* Assign values to the special symbols before the linker script is
339 gld_${EMULATION_NAME}_set_symbols (void)
341 /* Run through and invent symbols for all the
342 names and insert the defaults. */
344 lang_statement_list_type *save;
346 if (!init[IMAGEBASEOFF].inited)
348 if (link_info.relocatable)
349 init[IMAGEBASEOFF].value = 0;
350 else if (init[DLLOFF].value)
351 init[IMAGEBASEOFF].value = BEOS_DLL_IMAGE_BASE;
353 init[IMAGEBASEOFF].value = BEOS_EXE_IMAGE_BASE;
356 /* Don't do any symbol assignments if this is a relocatable link. */
357 if (link_info.relocatable)
360 /* Glue the assignments into the abs section */
363 stat_ptr = &(abs_output_section->children);
365 for (j = 0; init[j].ptr; j++)
367 long val = init[j].value;
368 lang_add_assignment (exp_assop ('=', init[j].symbol, exp_intop (val)));
369 if (init[j].size == sizeof(short))
370 *(short *)init[j].ptr = val;
371 else if (init[j].size == sizeof(int))
372 *(int *)init[j].ptr = val;
373 else if (init[j].size == sizeof(long))
374 *(long *)init[j].ptr = val;
375 /* This might be a long long or other special type. */
376 else if (init[j].size == sizeof(bfd_vma))
377 *(bfd_vma *)init[j].ptr = val;
380 /* Restore the pointer. */
383 if (pe.FileAlignment >
386 einfo ("%P: warning, file alignment > section alignment.\n");
391 gld_${EMULATION_NAME}_after_open (void)
393 /* Pass the wacky PE command line options into the output bfd.
394 FIXME: This should be done via a function, rather than by
395 including an internal BFD header. */
396 if (!coff_data(output_bfd)->pe)
398 einfo ("%F%P: PE operations on non PE file.\n");
401 pe_data(output_bfd)->pe_opthdr = pe;
402 pe_data(output_bfd)->dll = init[DLLOFF].value;
406 /* Callback functions for qsort in sort_sections. */
409 sort_by_file_name (const void *a, const void *b)
411 const lang_statement_union_type *const *ra = a;
412 const lang_statement_union_type *const *rb = b;
415 i = strcmp ((*ra)->input_section.ifile->the_bfd->my_archive->filename,
416 (*rb)->input_section.ifile->the_bfd->my_archive->filename);
420 i = strcmp ((*ra)->input_section.ifile->filename,
421 (*rb)->input_section.ifile->filename);
424 /* the tail idata4/5 are the only ones without relocs to an
425 idata$6 section unless we are importing by ordinal,
426 so sort them to last to terminate the IAT
427 and HNT properly. if no reloc this one is import by ordinal
428 so we have to sort by section contents */
430 if ( ((*ra)->input_section.section->reloc_count + (*rb)->input_section.section->reloc_count) )
432 i = (((*ra)->input_section.section->reloc_count >
433 (*rb)->input_section.section->reloc_count) ? -1 : 0);
437 return (((*ra)->input_section.section->reloc_count >
438 (*rb)->input_section.section->reloc_count) ? 0 : 1);
442 if ( (strcmp( (*ra)->input_section.section->name, ".idata$6") == 0) )
443 return 0; /* don't sort .idata$6 or .idata$7 FIXME dlltool eliminate .idata$7 */
445 if (! bfd_get_section_contents ((*ra)->input_section.ifile->the_bfd,
446 (*ra)->input_section.section, &a_sec, (file_ptr) 0, (bfd_size_type)sizeof(a_sec)))
447 einfo ("%F%B: Can't read contents of section .idata: %E\n",
448 (*ra)->input_section.ifile->the_bfd);
450 if (! bfd_get_section_contents ((*rb)->input_section.ifile->the_bfd,
451 (*rb)->input_section.section, &b_sec, (file_ptr) 0, (bfd_size_type)sizeof(b_sec) ))
452 einfo ("%F%B: Can't read contents of section .idata: %E\n",
453 (*rb)->input_section.ifile->the_bfd);
455 i = ((a_sec < b_sec) ? -1 : 0);
458 return ((a_sec < b_sec) ? 0 : 1);
464 sort_by_section_name (const void *a, const void *b)
466 const lang_statement_union_type *const *ra = a;
467 const lang_statement_union_type *const *rb = b;
469 i = strcmp ((*ra)->input_section.section->name,
470 (*rb)->input_section.section->name);
471 /* this is a hack to make .stab and .stabstr last, so we don't have
472 to fix strip/objcopy for .reloc sections.
473 FIXME stripping images with a .rsrc section still needs to be fixed */
476 if ((strncmp ((*ra)->input_section.section->name, ".stab", 5) == 0)
477 && (strncmp ((*rb)->input_section.section->name, ".stab", 5) != 0))
484 /* Subroutine of sort_sections to a contiguous subset of a list of sections.
485 NEXT_AFTER is the element after the last one to sort.
486 The result is a pointer to the last element's "next" pointer. */
488 static lang_statement_union_type **
489 sort_sections_1 (lang_statement_union_type **startptr,
490 lang_statement_union_type *next_after,
492 int (*sort_func) (const void *, const void *))
494 lang_statement_union_type **vec;
495 lang_statement_union_type *p;
497 lang_statement_union_type **ret;
502 vec = ((lang_statement_union_type **)
503 xmalloc (count * sizeof (lang_statement_union_type *)));
505 for (p = *startptr, i = 0; i < count; i++, p = p->header.next)
508 qsort (vec, count, sizeof (vec[0]), sort_func);
510 /* Fill in the next pointers again. */
512 for (i = 0; i < count - 1; i++)
513 vec[i]->header.next = vec[i + 1];
514 vec[i]->header.next = next_after;
515 ret = &vec[i]->header.next;
520 /* Sort the .idata\$foo input sections of archives into filename order.
521 The reason is so dlltool can arrange to have the pe dll import information
522 generated correctly - the head of the list goes into dh.o, the tail into
523 dt.o, and the guts into ds[nnnn].o. Note that this is only needed for the
525 FIXME: This may no longer be necessary with grouped sections. Instead of
526 sorting on dh.o, ds[nnnn].o, dt.o, one could, for example, have dh.o use
527 .idata\$4h, have ds[nnnn].o use .idata\$4s[nnnn], and have dt.o use .idata\$4t.
528 This would have to be elaborated upon to handle multiple dll's
529 [assuming such an eloboration is possible of course].
531 We also sort sections in '\$' wild statements. These are created by the
532 place_orphans routine to implement grouped sections. */
535 sort_sections (lang_statement_union_type *s)
537 for (; s ; s = s->header.next)
538 switch (s->header.type)
540 case lang_output_section_statement_enum:
541 sort_sections (s->output_section_statement.children.head);
543 case lang_wild_statement_enum:
545 lang_statement_union_type **p = &s->wild_statement.children.head;
546 struct wildcard_list *sec;
548 for (sec = s->wild_statement.section_list; sec; sec = sec->next)
550 /* Is this the .idata section? */
551 if (sec->spec.name != NULL
552 && strncmp (sec->spec.name, ".idata", 6) == 0)
554 /* Sort the children. We want to sort any objects in
555 the same archive. In order to handle the case of
556 including a single archive multiple times, we sort
557 all the children by archive name and then by object
558 name. After sorting them, we re-thread the pointer
563 lang_statement_union_type *start = *p;
564 if (start->header.type != lang_input_section_enum
565 || !start->input_section.ifile->the_bfd->my_archive)
566 p = &(start->header.next);
569 lang_statement_union_type *end;
572 for (end = start, count = 0;
573 end && (end->header.type
574 == lang_input_section_enum);
575 end = end->header.next)
578 p = sort_sections_1 (p, end, count,
585 /* If this is a collection of grouped sections, sort them.
586 The linker script must explicitly mention "*(.foo\$)" or
587 "*(.foo\$*)". Don't sort them if \$ is not the last
588 character (not sure if this is really useful, but it
589 allows explicitly mentioning some \$ sections and letting
590 the linker handle the rest). */
591 if (sec->spec.name != NULL)
593 char *q = strchr (sec->spec.name, '\$');
597 || (q[1] == '*' && q[2] == '\0')))
599 lang_statement_union_type *end;
602 for (end = *p, count = 0; end; end = end->header.next)
604 if (end->header.type != lang_input_section_enum)
608 (void) sort_sections_1 (p, end, count,
609 sort_by_section_name);
622 gld_${EMULATION_NAME}_before_allocation (void)
624 extern lang_statement_list_type *stat_ptr;
626 #ifdef TARGET_IS_ppcpe
627 /* Here we rummage through the found bfds to collect toc information */
629 LANG_FOR_EACH_INPUT_STATEMENT (is)
631 if (!ppc_process_before_allocation(is->the_bfd, &link_info))
633 einfo("Errors encountered processing file %s\n", is->filename);
638 /* We have seen it all. Allocate it, and carry on */
639 ppc_allocate_toc_section (&link_info);
641 #ifdef TARGET_IS_armpe
642 /* FIXME: we should be able to set the size of the interworking stub
645 Here we rummage through the found bfds to collect glue
646 information. FIXME: should this be based on a command line
647 option? krk@cygnus.com */
649 LANG_FOR_EACH_INPUT_STATEMENT (is)
651 if (!arm_process_before_allocation (is->the_bfd, & link_info))
653 einfo ("Errors encountered processing file %s", is->filename);
658 /* We have seen it all. Allocate it, and carry on */
659 arm_allocate_interworking_sections (& link_info);
660 #endif /* TARGET_IS_armpe */
661 #endif /* TARGET_IS_ppcpe */
663 sort_sections (stat_ptr->head);
666 /* Place an orphan section. We use this to put sections with a '\$' in them
667 into the right place. Any section with a '\$' in them (e.g. .text\$foo)
668 gets mapped to the output section with everything from the '\$' on stripped
670 See the Microsoft Portable Executable and Common Object File Format
671 Specification 4.1, section 4.2, Grouped Sections.
673 FIXME: This is now handled by the linker script using wildcards,
674 but I'm leaving this here in case we want to enable it for sections
675 which are not mentioned in the linker script. */
678 gld${EMULATION_NAME}_place_orphan (lang_input_statement_type *file, asection *s)
681 char *output_secname, *ps;
682 lang_output_section_statement_type *os;
683 lang_statement_union_type *l;
685 if ((s->flags & SEC_ALLOC) == 0)
688 /* Don't process grouped sections unless doing a final link.
689 If they're marked as COMDAT sections, we don't want .text\$foo to
690 end up in .text and then have .text disappear because it's marked
691 link-once-discard. */
692 if (link_info.relocatable)
695 secname = bfd_get_section_name (s->owner, s);
697 /* Everything from the '\$' on gets deleted so don't allow '\$' as the
699 if (*secname == '\$')
700 einfo ("%P%F: section %s has '\$' as first character\n", secname);
701 if (strchr (secname + 1, '\$') == NULL)
704 /* Look up the output section. The Microsoft specs say sections names in
705 image files never contain a '\$'. Fortunately, lang_..._lookup creates
706 the section if it doesn't exist. */
707 output_secname = xstrdup (secname);
708 ps = strchr (output_secname + 1, '\$');
710 os = lang_output_section_statement_lookup (output_secname);
712 /* Find the '\$' wild statement for this section. We currently require the
713 linker script to explicitly mention "*(.foo\$)".
714 FIXME: ppcpe.sc has .CRT\$foo in the .rdata section. According to the
715 Microsoft docs this isn't correct so it's not (currently) handled. */
719 for (l = os->children.head; l; l = l->header.next)
720 if (l->header.type == lang_wild_statement_enum)
722 struct wildcard_list *sec;
724 for (sec = l->wild_statement.section_list; sec; sec = sec->next)
725 if (sec->spec.name && strcmp (sec->spec.name, output_secname) == 0)
732 einfo ("%P%F: *(%s\$) missing from linker script\n", output_secname);
734 /* Link the input section in and we're done for now.
735 The sections still have to be sorted, but that has to wait until
736 all such sections have been processed by us. The sorting is done by
738 lang_add_section (&l->wild_statement.children, s, os, file);
744 gld_${EMULATION_NAME}_get_script (int *isfile)
746 # Scripts compiled in.
747 # sed commands to quote an ld script as a C string.
748 sc="-f stringify.sed"
750 cat >>e${EMULATION_NAME}.c <<EOF
754 if (link_info.relocatable && config.build_constructors)
757 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
758 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
759 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
760 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
761 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
762 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
763 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
764 echo ' ; else return' >> e${EMULATION_NAME}.c
765 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
766 echo '; }' >> e${EMULATION_NAME}.c
768 cat >>e${EMULATION_NAME}.c <<EOF
771 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
773 gld_${EMULATION_NAME}_before_parse,
777 gld_${EMULATION_NAME}_after_open,
778 after_allocation_default,
779 set_output_arch_default,
780 ldemul_default_target,
781 gld_${EMULATION_NAME}_before_allocation,
782 gld_${EMULATION_NAME}_get_script,
786 NULL, /* create output section statements */
787 NULL, /* open dynamic archive */
788 gld${EMULATION_NAME}_place_orphan,
789 gld_${EMULATION_NAME}_set_symbols,
790 NULL, /* parse_args */
791 gld${EMULATION_NAME}_add_options,
792 gld${EMULATION_NAME}_handle_option,
793 NULL, /* unrecognized file */
794 NULL, /* list options */
795 NULL, /* recognized file */
796 NULL, /* find_potential_libraries */
797 NULL /* new_vers_pattern */