1 /* Plugin support for BFD.
2    Copyright (C) 2009-2016 Free Software Foundation, Inc.
3 
4    This file is part of BFD, the Binary File Descriptor library.
5 
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 3 of the License, or
9    (at your option) any later version.
10 
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15 
16    You should have received a copy of the GNU General Public License
17    along with this program; if not, write to the Free Software
18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19    MA 02110-1301, USA.  */
20 
21 #include "sysdep.h"
22 #include "bfd.h"
23 
24 #if BFD_SUPPORTS_PLUGINS
25 
26 #include <assert.h>
27 #ifdef HAVE_DLFCN_H
28 #include <dlfcn.h>
29 #elif defined (HAVE_WINDOWS_H)
30 #include <windows.h>
31 #else
32 #error Unknown how to handle dynamic-load-libraries.
33 #endif
34 #include <stdarg.h>
35 #include "plugin-api.h"
36 #include "plugin.h"
37 #include "libbfd.h"
38 #include "libiberty.h"
39 #include <dirent.h>
40 
41 #if !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H)
42 
43 #define RTLD_NOW 0      /* Dummy value.  */
44 
45 static void *
dlopen(const char * file,int mode ATTRIBUTE_UNUSED)46 dlopen (const char *file, int mode ATTRIBUTE_UNUSED)
47 {
48   return LoadLibrary (file);
49 }
50 
51 static void *
dlsym(void * handle,const char * name)52 dlsym (void *handle, const char *name)
53 {
54   return GetProcAddress (handle, name);
55 }
56 
57 static int ATTRIBUTE_UNUSED
dlclose(void * handle)58 dlclose (void *handle)
59 {
60   FreeLibrary (handle);
61   return 0;
62 }
63 
64 static const char *
dlerror(void)65 dlerror (void)
66 {
67   return "Unable to load DLL.";
68 }
69 
70 #endif /* !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H)  */
71 
72 #define bfd_plugin_close_and_cleanup                  _bfd_generic_close_and_cleanup
73 #define bfd_plugin_bfd_free_cached_info               _bfd_generic_bfd_free_cached_info
74 #define bfd_plugin_new_section_hook                   _bfd_generic_new_section_hook
75 #define bfd_plugin_get_section_contents               _bfd_generic_get_section_contents
76 #define bfd_plugin_get_section_contents_in_window     _bfd_generic_get_section_contents_in_window
77 #define bfd_plugin_bfd_copy_private_header_data       _bfd_generic_bfd_copy_private_header_data
78 #define bfd_plugin_bfd_merge_private_bfd_data         _bfd_generic_bfd_merge_private_bfd_data
79 #define bfd_plugin_bfd_copy_private_header_data       _bfd_generic_bfd_copy_private_header_data
80 #define bfd_plugin_bfd_set_private_flags              _bfd_generic_bfd_set_private_flags
81 #define bfd_plugin_core_file_matches_executable_p     generic_core_file_matches_executable_p
82 #define bfd_plugin_bfd_is_local_label_name            _bfd_nosymbols_bfd_is_local_label_name
83 #define bfd_plugin_bfd_is_target_special_symbol       ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
84 #define bfd_plugin_get_lineno                         _bfd_nosymbols_get_lineno
85 #define bfd_plugin_find_nearest_line                  _bfd_nosymbols_find_nearest_line
86 #define bfd_plugin_find_line                          _bfd_nosymbols_find_line
87 #define bfd_plugin_find_inliner_info                  _bfd_nosymbols_find_inliner_info
88 #define bfd_plugin_get_symbol_version_string	      _bfd_nosymbols_get_symbol_version_string
89 #define bfd_plugin_bfd_make_debug_symbol              _bfd_nosymbols_bfd_make_debug_symbol
90 #define bfd_plugin_read_minisymbols                   _bfd_generic_read_minisymbols
91 #define bfd_plugin_minisymbol_to_symbol               _bfd_generic_minisymbol_to_symbol
92 #define bfd_plugin_set_arch_mach                      bfd_default_set_arch_mach
93 #define bfd_plugin_set_section_contents               _bfd_generic_set_section_contents
94 #define bfd_plugin_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
95 #define bfd_plugin_bfd_relax_section                  bfd_generic_relax_section
96 #define bfd_plugin_bfd_link_hash_table_create         _bfd_generic_link_hash_table_create
97 #define bfd_plugin_bfd_link_add_symbols               _bfd_generic_link_add_symbols
98 #define bfd_plugin_bfd_link_just_syms                 _bfd_generic_link_just_syms
99 #define bfd_plugin_bfd_final_link                     _bfd_generic_final_link
100 #define bfd_plugin_bfd_link_split_section             _bfd_generic_link_split_section
101 #define bfd_plugin_bfd_gc_sections                    bfd_generic_gc_sections
102 #define bfd_plugin_bfd_lookup_section_flags           bfd_generic_lookup_section_flags
103 #define bfd_plugin_bfd_merge_sections                 bfd_generic_merge_sections
104 #define bfd_plugin_bfd_is_group_section               bfd_generic_is_group_section
105 #define bfd_plugin_bfd_discard_group                  bfd_generic_discard_group
106 #define bfd_plugin_section_already_linked             _bfd_generic_section_already_linked
107 #define bfd_plugin_bfd_define_common_symbol           bfd_generic_define_common_symbol
108 #define bfd_plugin_bfd_copy_link_hash_symbol_type     _bfd_generic_copy_link_hash_symbol_type
109 #define bfd_plugin_bfd_link_check_relocs              _bfd_generic_link_check_relocs
110 
111 static enum ld_plugin_status
message(int level ATTRIBUTE_UNUSED,const char * format,...)112 message (int level ATTRIBUTE_UNUSED,
113 	 const char * format, ...)
114 {
115   va_list args;
116   va_start (args, format);
117   printf ("bfd plugin: ");
118   vprintf (format, args);
119   putchar ('\n');
120   va_end (args);
121   return LDPS_OK;
122 }
123 
124 /* Register a claim-file handler. */
125 static ld_plugin_claim_file_handler claim_file;
126 
127 static enum ld_plugin_status
register_claim_file(ld_plugin_claim_file_handler handler)128 register_claim_file (ld_plugin_claim_file_handler handler)
129 {
130   claim_file = handler;
131   return LDPS_OK;
132 }
133 
134 static enum ld_plugin_status
add_symbols(void * handle,int nsyms,const struct ld_plugin_symbol * syms)135 add_symbols (void * handle,
136 	     int nsyms,
137 	     const struct ld_plugin_symbol * syms)
138 {
139   bfd *abfd = handle;
140   struct plugin_data_struct *plugin_data =
141     bfd_alloc (abfd, sizeof (plugin_data_struct));
142 
143   plugin_data->nsyms = nsyms;
144   plugin_data->syms = syms;
145 
146   if (nsyms != 0)
147     abfd->flags |= HAS_SYMS;
148 
149   abfd->tdata.plugin_data = plugin_data;
150   return LDPS_OK;
151 }
152 
153 static const char *plugin_program_name;
154 
155 void
bfd_plugin_set_program_name(const char * program_name)156 bfd_plugin_set_program_name (const char *program_name)
157 {
158   plugin_program_name = program_name;
159 }
160 
161 static int
try_claim(bfd * abfd)162 try_claim (bfd *abfd)
163 {
164   int claimed = 0;
165   struct ld_plugin_input_file file;
166   bfd *iobfd;
167 
168   file.name = abfd->filename;
169 
170   if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive))
171     {
172       iobfd = abfd->my_archive;
173       file.offset = abfd->origin;
174       file.filesize = arelt_size (abfd);
175     }
176   else
177     {
178       iobfd = abfd;
179       file.offset = 0;
180       file.filesize = 0;
181     }
182 
183   if (!iobfd->iostream && !bfd_open_file (iobfd))
184     return 0;
185 
186   file.fd = fileno ((FILE *) iobfd->iostream);
187 
188   if (!abfd->my_archive || bfd_is_thin_archive (abfd->my_archive))
189     {
190       struct stat stat_buf;
191       if (fstat (file.fd, &stat_buf))
192         return 0;
193       file.filesize = stat_buf.st_size;
194     }
195 
196   file.handle = abfd;
197   off_t cur_offset = lseek(file.fd, 0, SEEK_CUR);
198   claim_file (&file, &claimed);
199   lseek(file.fd, cur_offset, SEEK_SET);
200   if (!claimed)
201     return 0;
202 
203   return 1;
204 }
205 
206 static int
try_load_plugin(const char * pname,bfd * abfd,int * has_plugin_p)207 try_load_plugin (const char *pname, bfd *abfd, int *has_plugin_p)
208 {
209   void *plugin_handle;
210   struct ld_plugin_tv tv[4];
211   int i;
212   ld_plugin_onload onload;
213   enum ld_plugin_status status;
214 
215   *has_plugin_p = 0;
216 
217   plugin_handle = dlopen (pname, RTLD_NOW);
218   if (!plugin_handle)
219     {
220       (*_bfd_error_handler)("%s\n", dlerror ());
221       return 0;
222     }
223 
224   onload = dlsym (plugin_handle, "onload");
225   if (!onload)
226     goto err;
227 
228   i = 0;
229   tv[i].tv_tag = LDPT_MESSAGE;
230   tv[i].tv_u.tv_message = message;
231 
232   ++i;
233   tv[i].tv_tag = LDPT_REGISTER_CLAIM_FILE_HOOK;
234   tv[i].tv_u.tv_register_claim_file = register_claim_file;
235 
236   ++i;
237   tv[i].tv_tag = LDPT_ADD_SYMBOLS;
238   tv[i].tv_u.tv_add_symbols = add_symbols;
239 
240   ++i;
241   tv[i].tv_tag = LDPT_NULL;
242   tv[i].tv_u.tv_val = 0;
243 
244   status = (*onload)(tv);
245 
246   if (status != LDPS_OK)
247     goto err;
248 
249   *has_plugin_p = 1;
250 
251   abfd->plugin_format = bfd_plugin_no;
252 
253   if (!claim_file)
254     goto err;
255 
256   if (!try_claim (abfd))
257     goto err;
258 
259   abfd->plugin_format = bfd_plugin_yes;
260 
261   return 1;
262 
263  err:
264   return 0;
265 }
266 
267 /* There may be plugin libraries in lib/bfd-plugins.  */
268 
269 static int has_plugin = -1;
270 
271 static const bfd_target *(*ld_plugin_object_p) (bfd *);
272 
273 static const char *plugin_name;
274 
275 void
bfd_plugin_set_plugin(const char * p)276 bfd_plugin_set_plugin (const char *p)
277 {
278   plugin_name = p;
279   has_plugin = p != NULL;
280 }
281 
282 /* Return TRUE if a plugin library is used.  */
283 
284 bfd_boolean
bfd_plugin_specified_p(void)285 bfd_plugin_specified_p (void)
286 {
287   return has_plugin > 0;
288 }
289 
290 /* Return TRUE if ABFD can be claimed by linker LTO plugin.  */
291 
292 bfd_boolean
bfd_link_plugin_object_p(bfd * abfd)293 bfd_link_plugin_object_p (bfd *abfd)
294 {
295   if (ld_plugin_object_p)
296     return ld_plugin_object_p (abfd) != NULL;
297   return FALSE;
298 }
299 
300 extern const bfd_target plugin_vec;
301 
302 /* Return TRUE if TARGET is a pointer to plugin_vec.  */
303 
304 bfd_boolean
bfd_plugin_target_p(const bfd_target * target)305 bfd_plugin_target_p (const bfd_target *target)
306 {
307   return target == &plugin_vec;
308 }
309 
310 /* Register OBJECT_P to be used by bfd_plugin_object_p.  */
311 
312 void
register_ld_plugin_object_p(const bfd_target * (* object_p)(bfd *))313 register_ld_plugin_object_p (const bfd_target *(*object_p) (bfd *))
314 {
315   ld_plugin_object_p = object_p;
316 }
317 
318 static int
load_plugin(bfd * abfd)319 load_plugin (bfd *abfd)
320 {
321   char *plugin_dir;
322   char *p;
323   DIR *d;
324   struct dirent *ent;
325   int found = 0;
326 
327   if (!has_plugin)
328     return found;
329 
330   if (plugin_name)
331     return try_load_plugin (plugin_name, abfd, &has_plugin);
332 
333   if (plugin_program_name == NULL)
334     return found;
335 
336   plugin_dir = concat (BINDIR, "/../lib/bfd-plugins", NULL);
337   p = make_relative_prefix (plugin_program_name,
338 			    BINDIR,
339 			    plugin_dir);
340   free (plugin_dir);
341   plugin_dir = NULL;
342 
343   d = opendir (p);
344   if (!d)
345     goto out;
346 
347   while ((ent = readdir (d)))
348     {
349       char *full_name;
350       struct stat s;
351       int valid_plugin;
352 
353       full_name = concat (p, "/", ent->d_name, NULL);
354       if (stat(full_name, &s) == 0 && S_ISREG (s.st_mode))
355 	found = try_load_plugin (full_name, abfd, &valid_plugin);
356       if (has_plugin <= 0)
357 	has_plugin = valid_plugin;
358       free (full_name);
359       if (found)
360 	break;
361     }
362 
363  out:
364   free (p);
365   if (d)
366     closedir (d);
367 
368   return found;
369 }
370 
371 
372 static const bfd_target *
bfd_plugin_object_p(bfd * abfd)373 bfd_plugin_object_p (bfd *abfd)
374 {
375   if (ld_plugin_object_p)
376     return ld_plugin_object_p (abfd);
377 
378   if (abfd->plugin_format == bfd_plugin_unknown && !load_plugin (abfd))
379     return NULL;
380 
381   return abfd->plugin_format == bfd_plugin_yes ? abfd->xvec : NULL;
382 }
383 
384 /* Copy any private info we understand from the input bfd
385    to the output bfd.  */
386 
387 static bfd_boolean
bfd_plugin_bfd_copy_private_bfd_data(bfd * ibfd ATTRIBUTE_UNUSED,bfd * obfd ATTRIBUTE_UNUSED)388 bfd_plugin_bfd_copy_private_bfd_data (bfd *ibfd ATTRIBUTE_UNUSED,
389 				      bfd *obfd ATTRIBUTE_UNUSED)
390 {
391   BFD_ASSERT (0);
392   return TRUE;
393 }
394 
395 /* Copy any private info we understand from the input section
396    to the output section.  */
397 
398 static bfd_boolean
bfd_plugin_bfd_copy_private_section_data(bfd * ibfd ATTRIBUTE_UNUSED,asection * isection ATTRIBUTE_UNUSED,bfd * obfd ATTRIBUTE_UNUSED,asection * osection ATTRIBUTE_UNUSED)399 bfd_plugin_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
400 					  asection *isection ATTRIBUTE_UNUSED,
401 					  bfd *obfd ATTRIBUTE_UNUSED,
402 					  asection *osection ATTRIBUTE_UNUSED)
403 {
404   BFD_ASSERT (0);
405   return TRUE;
406 }
407 
408 /* Copy any private info we understand from the input symbol
409    to the output symbol.  */
410 
411 static bfd_boolean
bfd_plugin_bfd_copy_private_symbol_data(bfd * ibfd ATTRIBUTE_UNUSED,asymbol * isymbol ATTRIBUTE_UNUSED,bfd * obfd ATTRIBUTE_UNUSED,asymbol * osymbol ATTRIBUTE_UNUSED)412 bfd_plugin_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
413 					 asymbol *isymbol ATTRIBUTE_UNUSED,
414 					 bfd *obfd ATTRIBUTE_UNUSED,
415 					 asymbol *osymbol ATTRIBUTE_UNUSED)
416 {
417   BFD_ASSERT (0);
418   return TRUE;
419 }
420 
421 static bfd_boolean
bfd_plugin_bfd_print_private_bfd_data(bfd * abfd ATTRIBUTE_UNUSED,PTR ptr ATTRIBUTE_UNUSED)422 bfd_plugin_bfd_print_private_bfd_data (bfd *abfd ATTRIBUTE_UNUSED, PTR ptr ATTRIBUTE_UNUSED)
423 {
424   BFD_ASSERT (0);
425   return TRUE;
426 }
427 
428 static char *
bfd_plugin_core_file_failing_command(bfd * abfd ATTRIBUTE_UNUSED)429 bfd_plugin_core_file_failing_command (bfd *abfd ATTRIBUTE_UNUSED)
430 {
431   BFD_ASSERT (0);
432   return NULL;
433 }
434 
435 static int
bfd_plugin_core_file_failing_signal(bfd * abfd ATTRIBUTE_UNUSED)436 bfd_plugin_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
437 {
438   BFD_ASSERT (0);
439   return 0;
440 }
441 
442 static int
bfd_plugin_core_file_pid(bfd * abfd ATTRIBUTE_UNUSED)443 bfd_plugin_core_file_pid (bfd *abfd ATTRIBUTE_UNUSED)
444 {
445   BFD_ASSERT (0);
446   return 0;
447 }
448 
449 static long
bfd_plugin_get_symtab_upper_bound(bfd * abfd)450 bfd_plugin_get_symtab_upper_bound (bfd *abfd)
451 {
452   struct plugin_data_struct *plugin_data = abfd->tdata.plugin_data;
453   long nsyms = plugin_data->nsyms;
454 
455   BFD_ASSERT (nsyms >= 0);
456 
457   return ((nsyms + 1) * sizeof (asymbol *));
458 }
459 
460 static flagword
convert_flags(const struct ld_plugin_symbol * sym)461 convert_flags (const struct ld_plugin_symbol *sym)
462 {
463  switch (sym->def)
464    {
465    case LDPK_DEF:
466    case LDPK_COMMON:
467    case LDPK_UNDEF:
468      return BSF_GLOBAL;
469 
470    case LDPK_WEAKUNDEF:
471    case LDPK_WEAKDEF:
472      return BSF_GLOBAL | BSF_WEAK;
473 
474    default:
475      BFD_ASSERT (0);
476      return 0;
477    }
478 }
479 
480 static long
bfd_plugin_canonicalize_symtab(bfd * abfd,asymbol ** alocation)481 bfd_plugin_canonicalize_symtab (bfd *abfd,
482 				asymbol **alocation)
483 {
484   struct plugin_data_struct *plugin_data = abfd->tdata.plugin_data;
485   long nsyms = plugin_data->nsyms;
486   const struct ld_plugin_symbol *syms = plugin_data->syms;
487   static asection fake_section;
488   static asection fake_common_section;
489   int i;
490 
491   fake_section.name = ".text";
492   fake_common_section.flags = SEC_IS_COMMON;
493 
494   for (i = 0; i < nsyms; i++)
495     {
496       asymbol *s = bfd_alloc (abfd, sizeof (asymbol));
497 
498       BFD_ASSERT (s);
499       alocation[i] = s;
500 
501       s->the_bfd = abfd;
502       s->name = syms[i].name;
503       s->value = 0;
504       s->flags = convert_flags (&syms[i]);
505       switch (syms[i].def)
506 	{
507 	case LDPK_COMMON:
508 	  s->section = &fake_common_section;
509 	  break;
510 	case LDPK_UNDEF:
511 	case LDPK_WEAKUNDEF:
512 	  s->section = bfd_und_section_ptr;
513 	  break;
514 	case LDPK_DEF:
515 	case LDPK_WEAKDEF:
516 	  s->section = &fake_section;
517 	  break;
518 	default:
519 	  BFD_ASSERT (0);
520 	}
521 
522       s->udata.p = (void *) &syms[i];
523     }
524 
525   return nsyms;
526 }
527 
528 static void
bfd_plugin_print_symbol(bfd * abfd ATTRIBUTE_UNUSED,PTR afile ATTRIBUTE_UNUSED,asymbol * symbol ATTRIBUTE_UNUSED,bfd_print_symbol_type how ATTRIBUTE_UNUSED)529 bfd_plugin_print_symbol (bfd *abfd ATTRIBUTE_UNUSED,
530 			 PTR afile ATTRIBUTE_UNUSED,
531 			 asymbol *symbol ATTRIBUTE_UNUSED,
532 			 bfd_print_symbol_type how ATTRIBUTE_UNUSED)
533 {
534   BFD_ASSERT (0);
535 }
536 
537 static void
bfd_plugin_get_symbol_info(bfd * abfd ATTRIBUTE_UNUSED,asymbol * symbol,symbol_info * ret)538 bfd_plugin_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
539 			    asymbol *symbol,
540 			    symbol_info *ret)
541 {
542   bfd_symbol_info (symbol, ret);
543 }
544 
545 /* Make an empty symbol. */
546 
547 static asymbol *
bfd_plugin_make_empty_symbol(bfd * abfd)548 bfd_plugin_make_empty_symbol (bfd *abfd)
549 {
550   asymbol *new_symbol = bfd_zalloc (abfd, sizeof (asymbol));
551   if (new_symbol == NULL)
552     return new_symbol;
553   new_symbol->the_bfd = abfd;
554   return new_symbol;
555 }
556 
557 static int
bfd_plugin_sizeof_headers(bfd * a ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED)558 bfd_plugin_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
559 			   struct bfd_link_info *info ATTRIBUTE_UNUSED)
560 {
561   BFD_ASSERT (0);
562   return 0;
563 }
564 
565 const bfd_target plugin_vec =
566 {
567   "plugin",			/* Name.  */
568   bfd_target_unknown_flavour,
569   BFD_ENDIAN_LITTLE,		/* Target byte order.  */
570   BFD_ENDIAN_LITTLE,		/* Target headers byte order.  */
571   (HAS_RELOC | EXEC_P |		/* Object flags.  */
572    HAS_LINENO | HAS_DEBUG |
573    HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
574   (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
575    | SEC_ALLOC | SEC_LOAD | SEC_RELOC),	/* Section flags.  */
576   0,				/* symbol_leading_char.  */
577   '/',				/* ar_pad_char.  */
578   15,				/* ar_max_namelen.  */
579   255,				/* match priority.  */
580 
581   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
582   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
583   bfd_getl16, bfd_getl_signed_16, bfd_putl16,	/* data */
584   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
585   bfd_getl32, bfd_getl_signed_32, bfd_putl32,
586   bfd_getl16, bfd_getl_signed_16, bfd_putl16,	/* hdrs */
587 
588   {				/* bfd_check_format.  */
589     _bfd_dummy_target,
590     bfd_plugin_object_p,
591     bfd_generic_archive_p,
592     _bfd_dummy_target
593   },
594   {				/* bfd_set_format.  */
595     bfd_false,
596     bfd_false,
597     _bfd_generic_mkarchive,
598     bfd_false,
599   },
600   {				/* bfd_write_contents.  */
601     bfd_false,
602     bfd_false,
603     _bfd_write_archive_contents,
604     bfd_false,
605   },
606 
607   BFD_JUMP_TABLE_GENERIC (bfd_plugin),
608   BFD_JUMP_TABLE_COPY (bfd_plugin),
609   BFD_JUMP_TABLE_CORE (bfd_plugin),
610 #ifdef USE_64_BIT_ARCHIVE
611   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_64_bit),
612 #else
613   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
614 #endif
615   BFD_JUMP_TABLE_SYMBOLS (bfd_plugin),
616   BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
617   BFD_JUMP_TABLE_WRITE (bfd_plugin),
618   BFD_JUMP_TABLE_LINK (bfd_plugin),
619   BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
620 
621   NULL,
622 
623   NULL  			/* backend_data.  */
624 };
625 #endif /* BFD_SUPPORTS_PLUGIN */
626