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  1. /* Target definitions for 64-bit ELF
  2.    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
  3.    2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
  4.    Free Software Foundation, Inc.
  5.  
  6.    This file is part of BFD, the Binary File Descriptor library.
  7.  
  8.    This program is free software; you can redistribute it and/or modify
  9.    it under the terms of the GNU General Public License as published by
  10.    the Free Software Foundation; either version 3 of the License, or
  11.    (at your option) any later version.
  12.  
  13.    This program is distributed in the hope that it will be useful,
  14.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16.    GNU General Public License for more details.
  17.  
  18.    You should have received a copy of the GNU General Public License
  19.    along with this program; if not, write to the Free Software
  20.    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21.    MA 02110-1301, USA.  */
  22.  
  23.  
  24. /* This structure contains everything that BFD knows about a target.
  25.    It includes things like its byte order, name, what routines to call
  26.    to do various operations, etc.  Every BFD points to a target structure
  27.    with its "xvec" member.
  28.  
  29.    There are two such structures here:  one for big-endian machines and
  30.    one for little-endian machines.   */
  31.  
  32. #ifndef bfd_elf64_close_and_cleanup
  33. #define bfd_elf64_close_and_cleanup _bfd_elf_close_and_cleanup
  34. #endif
  35. #ifndef bfd_elf64_bfd_free_cached_info
  36. #define bfd_elf64_bfd_free_cached_info _bfd_free_cached_info
  37. #endif
  38. #ifndef bfd_elf64_get_section_contents
  39. #define bfd_elf64_get_section_contents _bfd_generic_get_section_contents
  40. #endif
  41.  
  42. #define bfd_elf64_canonicalize_dynamic_symtab \
  43.   _bfd_elf_canonicalize_dynamic_symtab
  44. #ifndef bfd_elf64_get_synthetic_symtab
  45. #define bfd_elf64_get_synthetic_symtab \
  46.   _bfd_elf_get_synthetic_symtab
  47. #endif
  48. #ifndef bfd_elf64_canonicalize_reloc
  49. #define bfd_elf64_canonicalize_reloc    _bfd_elf_canonicalize_reloc
  50. #endif
  51. #ifndef bfd_elf64_find_nearest_line
  52. #define bfd_elf64_find_nearest_line     _bfd_elf_find_nearest_line
  53. #endif
  54. #ifndef bfd_elf64_find_inliner_info
  55. #define bfd_elf64_find_inliner_info     _bfd_elf_find_inliner_info
  56. #endif
  57. #define bfd_elf64_read_minisymbols      _bfd_elf_read_minisymbols
  58. #define bfd_elf64_minisymbol_to_symbol  _bfd_elf_minisymbol_to_symbol
  59. #define bfd_elf64_get_dynamic_symtab_upper_bound \
  60.   _bfd_elf_get_dynamic_symtab_upper_bound
  61. #define bfd_elf64_get_lineno            _bfd_elf_get_lineno
  62. #ifndef bfd_elf64_get_reloc_upper_bound
  63. #define bfd_elf64_get_reloc_upper_bound _bfd_elf_get_reloc_upper_bound
  64. #endif
  65. #ifndef bfd_elf64_get_symbol_info
  66. #define bfd_elf64_get_symbol_info       _bfd_elf_get_symbol_info
  67. #endif
  68. #define bfd_elf64_canonicalize_symtab   _bfd_elf_canonicalize_symtab
  69. #define bfd_elf64_get_symtab_upper_bound _bfd_elf_get_symtab_upper_bound
  70. #define bfd_elf64_make_empty_symbol     _bfd_elf_make_empty_symbol
  71. #ifndef bfd_elf64_new_section_hook
  72. #define bfd_elf64_new_section_hook      _bfd_elf_new_section_hook
  73. #endif
  74. #define bfd_elf64_set_arch_mach         _bfd_elf_set_arch_mach
  75. #ifndef bfd_elf64_set_section_contents
  76. #define bfd_elf64_set_section_contents  _bfd_elf_set_section_contents
  77. #endif
  78. #define bfd_elf64_sizeof_headers        _bfd_elf_sizeof_headers
  79. #define bfd_elf64_write_object_contents _bfd_elf_write_object_contents
  80. #define bfd_elf64_write_corefile_contents _bfd_elf_write_corefile_contents
  81.  
  82. #define bfd_elf64_get_section_contents_in_window \
  83.   _bfd_generic_get_section_contents_in_window
  84.  
  85. #ifndef elf_backend_can_refcount
  86. #define elf_backend_can_refcount 0
  87. #endif
  88. #ifndef elf_backend_want_got_plt
  89. #define elf_backend_want_got_plt 0
  90. #endif
  91. #ifndef elf_backend_plt_readonly
  92. #define elf_backend_plt_readonly 0
  93. #endif
  94. #ifndef elf_backend_want_plt_sym
  95. #define elf_backend_want_plt_sym 0
  96. #endif
  97. #ifndef elf_backend_plt_not_loaded
  98. #define elf_backend_plt_not_loaded 0
  99. #endif
  100. #ifndef elf_backend_plt_alignment
  101. #define elf_backend_plt_alignment 2
  102. #endif
  103. #ifndef elf_backend_want_dynbss
  104. #define elf_backend_want_dynbss 1
  105. #endif
  106. #ifndef elf_backend_want_p_paddr_set_to_zero
  107. #define elf_backend_want_p_paddr_set_to_zero 0
  108. #endif
  109. #ifndef elf_backend_default_execstack
  110. #define elf_backend_default_execstack 1
  111. #endif
  112. #ifndef elf_backend_stack_align
  113. #define elf_backend_stack_align 16
  114. #endif
  115.  
  116. #define bfd_elf64_bfd_debug_info_start  bfd_void
  117. #define bfd_elf64_bfd_debug_info_end    bfd_void
  118. #define bfd_elf64_bfd_debug_info_accumulate \
  119.   ((void (*) (bfd*, struct bfd_section *)) bfd_void)
  120.  
  121. #ifndef bfd_elf64_bfd_get_relocated_section_contents
  122. #define bfd_elf64_bfd_get_relocated_section_contents \
  123.   bfd_generic_get_relocated_section_contents
  124. #endif
  125.  
  126. #ifndef bfd_elf64_bfd_relax_section
  127. #define bfd_elf64_bfd_relax_section bfd_generic_relax_section
  128. #endif
  129.  
  130. #ifndef elf_backend_can_gc_sections
  131. #define elf_backend_can_gc_sections 0
  132. #endif
  133. #ifndef elf_backend_can_refcount
  134. #define elf_backend_can_refcount 0
  135. #endif
  136. #ifndef elf_backend_want_got_sym
  137. #define elf_backend_want_got_sym 1
  138. #endif
  139. #ifndef elf_backend_gc_keep
  140. #define elf_backend_gc_keep             _bfd_elf_gc_keep
  141. #endif
  142. #ifndef elf_backend_gc_mark_dynamic_ref
  143. #define elf_backend_gc_mark_dynamic_ref bfd_elf_gc_mark_dynamic_ref_symbol
  144. #endif
  145. #ifndef elf_backend_gc_mark_hook
  146. #define elf_backend_gc_mark_hook        _bfd_elf_gc_mark_hook
  147. #endif
  148. #ifndef elf_backend_gc_mark_extra_sections
  149. #define elf_backend_gc_mark_extra_sections _bfd_elf_gc_mark_extra_sections
  150. #endif
  151. #ifndef elf_backend_gc_sweep_hook
  152. #define elf_backend_gc_sweep_hook       NULL
  153. #endif
  154. #ifndef bfd_elf64_bfd_gc_sections
  155. #define bfd_elf64_bfd_gc_sections bfd_elf_gc_sections
  156. #endif
  157.  
  158. #ifndef bfd_elf64_bfd_merge_sections
  159. #define bfd_elf64_bfd_merge_sections \
  160.   _bfd_elf_merge_sections
  161. #endif
  162.  
  163. #ifndef bfd_elf64_bfd_is_group_section
  164. #define bfd_elf64_bfd_is_group_section bfd_elf_is_group_section
  165. #endif
  166.  
  167. #ifndef bfd_elf64_bfd_discard_group
  168. #define bfd_elf64_bfd_discard_group bfd_generic_discard_group
  169. #endif
  170.  
  171. #ifndef bfd_elf64_section_already_linked
  172. #define bfd_elf64_section_already_linked \
  173.   _bfd_elf_section_already_linked
  174. #endif
  175.  
  176. #ifndef bfd_elf64_bfd_define_common_symbol
  177. #define bfd_elf64_bfd_define_common_symbol bfd_generic_define_common_symbol
  178. #endif
  179.  
  180. #ifndef bfd_elf64_bfd_lookup_section_flags
  181. #define bfd_elf64_bfd_lookup_section_flags bfd_elf_lookup_section_flags
  182. #endif
  183.  
  184. #ifndef bfd_elf64_bfd_make_debug_symbol
  185. #define bfd_elf64_bfd_make_debug_symbol \
  186.   ((asymbol * (*) (bfd *, void *, unsigned long)) bfd_nullvoidptr)
  187. #endif
  188.  
  189. #ifndef bfd_elf64_bfd_copy_private_symbol_data
  190. #define bfd_elf64_bfd_copy_private_symbol_data \
  191.   _bfd_elf_copy_private_symbol_data
  192. #endif
  193.  
  194. #ifndef bfd_elf64_bfd_copy_private_section_data
  195. #define bfd_elf64_bfd_copy_private_section_data \
  196.   _bfd_elf_copy_private_section_data
  197. #endif
  198. #ifndef bfd_elf64_bfd_copy_private_header_data
  199. #define bfd_elf64_bfd_copy_private_header_data \
  200.   _bfd_elf_copy_private_header_data
  201. #endif
  202. #ifndef bfd_elf64_bfd_copy_private_bfd_data
  203. #define bfd_elf64_bfd_copy_private_bfd_data \
  204.   _bfd_elf_copy_private_bfd_data
  205. #endif
  206. #ifndef bfd_elf64_bfd_print_private_bfd_data
  207. #define bfd_elf64_bfd_print_private_bfd_data \
  208.   _bfd_elf_print_private_bfd_data
  209. #endif
  210. #ifndef bfd_elf64_bfd_merge_private_bfd_data
  211. #define bfd_elf64_bfd_merge_private_bfd_data \
  212.   ((bfd_boolean (*) (bfd *, bfd *)) bfd_true)
  213. #endif
  214. #ifndef bfd_elf64_bfd_set_private_flags
  215. #define bfd_elf64_bfd_set_private_flags \
  216.   ((bfd_boolean (*) (bfd *, flagword)) bfd_true)
  217. #endif
  218. #ifndef bfd_elf64_bfd_is_local_label_name
  219. #define bfd_elf64_bfd_is_local_label_name _bfd_elf_is_local_label_name
  220. #endif
  221. #ifndef bfd_elf64_bfd_is_target_special_symbol
  222. #define bfd_elf64_bfd_is_target_special_symbol \
  223.   ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
  224. #endif
  225.  
  226. #ifndef bfd_elf64_get_dynamic_reloc_upper_bound
  227. #define bfd_elf64_get_dynamic_reloc_upper_bound \
  228.   _bfd_elf_get_dynamic_reloc_upper_bound
  229. #endif
  230. #ifndef bfd_elf64_canonicalize_dynamic_reloc
  231. #define bfd_elf64_canonicalize_dynamic_reloc \
  232.   _bfd_elf_canonicalize_dynamic_reloc
  233. #endif
  234.  
  235. #ifdef elf_backend_relocate_section
  236. #ifndef bfd_elf64_bfd_link_hash_table_create
  237. #define bfd_elf64_bfd_link_hash_table_create _bfd_elf_link_hash_table_create
  238. #endif
  239. #ifndef bfd_elf64_bfd_link_hash_table_free
  240. #define bfd_elf64_bfd_link_hash_table_free _bfd_elf_link_hash_table_free
  241. #endif
  242. #ifndef bfd_elf64_bfd_link_add_symbols
  243. #define bfd_elf64_bfd_link_add_symbols  bfd_elf_link_add_symbols
  244. #endif
  245. #ifndef bfd_elf64_bfd_final_link
  246. #define bfd_elf64_bfd_final_link        bfd_elf_final_link
  247. #endif
  248. #else /* ! defined (elf_backend_relocate_section) */
  249. /* If no backend relocate_section routine, use the generic linker.
  250.    Note - this will prevent the port from being able to use some of
  251.    the other features of the ELF linker, because the generic hash structure
  252.    does not have the fields needed by the ELF linker.  In particular it
  253.    means that linking directly to S-records will not work.  */
  254. #ifndef bfd_elf64_bfd_link_hash_table_create
  255. #define bfd_elf64_bfd_link_hash_table_create \
  256.   _bfd_generic_link_hash_table_create
  257. #endif
  258. #ifndef bfd_elf64_bfd_link_hash_table_free
  259. #define bfd_elf64_bfd_link_hash_table_free _bfd_generic_link_hash_table_free
  260. #endif
  261. #ifndef bfd_elf64_bfd_link_add_symbols
  262. #define bfd_elf64_bfd_link_add_symbols  _bfd_generic_link_add_symbols
  263. #endif
  264. #ifndef bfd_elf64_bfd_final_link
  265. #define bfd_elf64_bfd_final_link        _bfd_generic_final_link
  266. #endif
  267. #endif /* ! defined (elf_backend_relocate_section) */
  268.  
  269. #ifndef bfd_elf64_bfd_link_just_syms
  270. #define bfd_elf64_bfd_link_just_syms    _bfd_elf_link_just_syms
  271. #endif
  272.  
  273. #ifndef bfd_elf64_bfd_copy_link_hash_symbol_type
  274. #define bfd_elf64_bfd_copy_link_hash_symbol_type \
  275.   _bfd_elf_copy_link_hash_symbol_type
  276. #endif
  277.  
  278. #ifndef bfd_elf64_bfd_link_split_section
  279. #define bfd_elf64_bfd_link_split_section _bfd_generic_link_split_section
  280. #endif
  281.  
  282. #ifndef bfd_elf64_archive_p
  283. #define bfd_elf64_archive_p bfd_generic_archive_p
  284. #endif
  285.  
  286. #ifndef bfd_elf64_write_archive_contents
  287. #define bfd_elf64_write_archive_contents _bfd_write_archive_contents
  288. #endif
  289.  
  290. #ifndef bfd_elf64_mkobject
  291. #define bfd_elf64_mkobject bfd_elf_make_object
  292. #endif
  293.  
  294. #ifndef bfd_elf64_mkcorefile
  295. #define bfd_elf64_mkcorefile bfd_elf_mkcorefile
  296. #endif
  297.  
  298. #ifndef bfd_elf64_mkarchive
  299. #define bfd_elf64_mkarchive _bfd_generic_mkarchive
  300. #endif
  301.  
  302. #ifndef bfd_elf64_print_symbol
  303. #define bfd_elf64_print_symbol bfd_elf_print_symbol
  304. #endif
  305.  
  306. #ifndef elf_symbol_leading_char
  307. #define elf_symbol_leading_char 0
  308. #endif
  309.  
  310. #ifndef elf_info_to_howto
  311. #define elf_info_to_howto 0
  312. #endif
  313.  
  314. #ifndef elf_info_to_howto_rel
  315. #define elf_info_to_howto_rel 0
  316. #endif
  317.  
  318. #ifndef elf_backend_arch_data
  319. #define elf_backend_arch_data NULL
  320. #endif
  321.  
  322. #ifndef ELF_TARGET_ID
  323. #define ELF_TARGET_ID   GENERIC_ELF_DATA
  324. #endif
  325.  
  326. #ifndef ELF_OSABI
  327. #define ELF_OSABI ELFOSABI_NONE
  328. #endif
  329.  
  330. #ifndef ELF_MAXPAGESIZE
  331. # error ELF_MAXPAGESIZE is not defined
  332. #define ELF_MAXPAGESIZE 1
  333. #endif
  334.  
  335. #ifndef ELF_COMMONPAGESIZE
  336. #define ELF_COMMONPAGESIZE ELF_MAXPAGESIZE
  337. #endif
  338.  
  339. #ifndef ELF_MINPAGESIZE
  340. #define ELF_MINPAGESIZE ELF_COMMONPAGESIZE
  341. #endif
  342.  
  343. #if ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
  344. # error ELF_COMMONPAGESIZE > ELF_MAXPAGESIZE
  345. #endif
  346. #if ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
  347. # error ELF_MINPAGESIZE > ELF_COMMONPAGESIZE
  348. #endif
  349.  
  350. #ifndef ELF_DYNAMIC_SEC_FLAGS
  351. /* Note that we set the SEC_IN_MEMORY flag for these sections.  */
  352. #define ELF_DYNAMIC_SEC_FLAGS                   \
  353.   (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS      \
  354.    | SEC_IN_MEMORY | SEC_LINKER_CREATED)
  355. #endif
  356.  
  357. #ifndef elf_backend_collect
  358. #define elf_backend_collect FALSE
  359. #endif
  360. #ifndef elf_backend_type_change_ok
  361. #define elf_backend_type_change_ok FALSE
  362. #endif
  363.  
  364. #ifndef elf_backend_sym_is_global
  365. #define elf_backend_sym_is_global       0
  366. #endif
  367. #ifndef elf_backend_object_p
  368. #define elf_backend_object_p            0
  369. #endif
  370. #ifndef elf_backend_symbol_processing
  371. #define elf_backend_symbol_processing   0
  372. #endif
  373. #ifndef elf_backend_symbol_table_processing
  374. #define elf_backend_symbol_table_processing     0
  375. #endif
  376. #ifndef elf_backend_get_symbol_type
  377. #define elf_backend_get_symbol_type 0
  378. #endif
  379. #ifndef elf_backend_archive_symbol_lookup
  380. #define elf_backend_archive_symbol_lookup _bfd_elf_archive_symbol_lookup
  381. #endif
  382. #ifndef elf_backend_name_local_section_symbols
  383. #define elf_backend_name_local_section_symbols  0
  384. #endif
  385. #ifndef elf_backend_section_processing
  386. #define elf_backend_section_processing  0
  387. #endif
  388. #ifndef elf_backend_section_from_shdr
  389. #define elf_backend_section_from_shdr   _bfd_elf_make_section_from_shdr
  390. #endif
  391. #ifndef elf_backend_section_flags
  392. #define elf_backend_section_flags       0
  393. #endif
  394. #ifndef elf_backend_get_sec_type_attr
  395. #define elf_backend_get_sec_type_attr   _bfd_elf_get_sec_type_attr
  396. #endif
  397. #ifndef elf_backend_section_from_phdr
  398. #define elf_backend_section_from_phdr   _bfd_elf_make_section_from_phdr
  399. #endif
  400. #ifndef elf_backend_fake_sections
  401. #define elf_backend_fake_sections       0
  402. #endif
  403. #ifndef elf_backend_section_from_bfd_section
  404. #define elf_backend_section_from_bfd_section    0
  405. #endif
  406. #ifndef elf_backend_add_symbol_hook
  407. #define elf_backend_add_symbol_hook     0
  408. #endif
  409. #ifndef elf_backend_link_output_symbol_hook
  410. #define elf_backend_link_output_symbol_hook 0
  411. #endif
  412. #ifndef elf_backend_create_dynamic_sections
  413. #define elf_backend_create_dynamic_sections 0
  414. #endif
  415. #ifndef elf_backend_omit_section_dynsym
  416. #define elf_backend_omit_section_dynsym _bfd_elf_link_omit_section_dynsym
  417. #endif
  418. #ifndef elf_backend_relocs_compatible
  419. #define elf_backend_relocs_compatible _bfd_elf_default_relocs_compatible
  420. #endif
  421. #ifndef elf_backend_check_relocs
  422. #define elf_backend_check_relocs        0
  423. #endif
  424. #ifndef elf_backend_check_directives
  425. #define elf_backend_check_directives    0
  426. #endif
  427. #ifndef elf_backend_notice_as_needed
  428. #define elf_backend_notice_as_needed    _bfd_elf_notice_as_needed
  429. #endif
  430. #ifndef elf_backend_adjust_dynamic_symbol
  431. #define elf_backend_adjust_dynamic_symbol 0
  432. #endif
  433. #ifndef elf_backend_always_size_sections
  434. #define elf_backend_always_size_sections 0
  435. #endif
  436. #ifndef elf_backend_size_dynamic_sections
  437. #define elf_backend_size_dynamic_sections 0
  438. #endif
  439. #ifndef elf_backend_init_index_section
  440. #define elf_backend_init_index_section \
  441.  ((void (*) (bfd *, struct bfd_link_info *)) bfd_void)
  442. #endif
  443. #ifndef elf_backend_relocate_section
  444. #define elf_backend_relocate_section    0
  445. #endif
  446. #ifndef elf_backend_finish_dynamic_symbol
  447. #define elf_backend_finish_dynamic_symbol       0
  448. #endif
  449. #ifndef elf_backend_finish_dynamic_sections
  450. #define elf_backend_finish_dynamic_sections     0
  451. #endif
  452. #ifndef elf_backend_begin_write_processing
  453. #define elf_backend_begin_write_processing      0
  454. #endif
  455. #ifndef elf_backend_final_write_processing
  456. #define elf_backend_final_write_processing      0
  457. #endif
  458. #ifndef elf_backend_additional_program_headers
  459. #define elf_backend_additional_program_headers  0
  460. #endif
  461. #ifndef elf_backend_modify_segment_map
  462. #define elf_backend_modify_segment_map  0
  463. #endif
  464. #ifndef elf_backend_modify_program_headers
  465. #define elf_backend_modify_program_headers      0
  466. #endif
  467. #ifndef elf_backend_ecoff_debug_swap
  468. #define elf_backend_ecoff_debug_swap    0
  469. #endif
  470. #ifndef elf_backend_bfd_from_remote_memory
  471. #define elf_backend_bfd_from_remote_memory _bfd_elf64_bfd_from_remote_memory
  472. #endif
  473. #ifndef elf_backend_got_header_size
  474. #define elf_backend_got_header_size     0
  475. #endif
  476. #ifndef elf_backend_got_elt_size
  477. #define elf_backend_got_elt_size _bfd_elf_default_got_elt_size
  478. #endif
  479. #ifndef elf_backend_obj_attrs_vendor
  480. #define elf_backend_obj_attrs_vendor            NULL
  481. #endif
  482. #ifndef elf_backend_obj_attrs_section
  483. #define elf_backend_obj_attrs_section           NULL
  484. #endif
  485. #ifndef elf_backend_obj_attrs_arg_type
  486. #define elf_backend_obj_attrs_arg_type          NULL
  487. #endif
  488. #ifndef elf_backend_obj_attrs_section_type
  489. #define elf_backend_obj_attrs_section_type              SHT_GNU_ATTRIBUTES
  490. #endif
  491. #ifndef elf_backend_obj_attrs_order
  492. #define elf_backend_obj_attrs_order             NULL
  493. #endif
  494. #ifndef elf_backend_obj_attrs_handle_unknown
  495. #define elf_backend_obj_attrs_handle_unknown    NULL
  496. #endif
  497. #ifndef elf_backend_static_tls_alignment
  498. #define elf_backend_static_tls_alignment        1
  499. #endif
  500. #ifndef elf_backend_post_process_headers
  501. #define elf_backend_post_process_headers        NULL
  502. #endif
  503. #ifndef elf_backend_print_symbol_all
  504. #define elf_backend_print_symbol_all            NULL
  505. #endif
  506. #ifndef elf_backend_output_arch_local_syms
  507. #define elf_backend_output_arch_local_syms      NULL
  508. #endif
  509. #ifndef elf_backend_output_arch_syms
  510. #define elf_backend_output_arch_syms            NULL
  511. #endif
  512. #ifndef elf_backend_copy_indirect_symbol
  513. #define elf_backend_copy_indirect_symbol  _bfd_elf_link_hash_copy_indirect
  514. #endif
  515. #ifndef elf_backend_hide_symbol
  516. #define elf_backend_hide_symbol         _bfd_elf_link_hash_hide_symbol
  517. #endif
  518. #ifndef elf_backend_fixup_symbol
  519. #define elf_backend_fixup_symbol                NULL
  520. #endif
  521. #ifndef elf_backend_merge_symbol_attribute
  522. #define elf_backend_merge_symbol_attribute      NULL
  523. #endif
  524. #ifndef elf_backend_get_target_dtag
  525. #define elf_backend_get_target_dtag             NULL
  526. #endif
  527. #ifndef elf_backend_ignore_undef_symbol
  528. #define elf_backend_ignore_undef_symbol         NULL
  529. #endif
  530. #ifndef elf_backend_emit_relocs
  531. #define elf_backend_emit_relocs                 _bfd_elf_link_output_relocs
  532. #endif
  533. #ifndef elf_backend_count_relocs
  534. #define elf_backend_count_relocs                NULL
  535. #endif
  536. #ifndef elf_backend_grok_prstatus
  537. #define elf_backend_grok_prstatus               NULL
  538. #endif
  539. #ifndef elf_backend_grok_psinfo
  540. #define elf_backend_grok_psinfo                 NULL
  541. #endif
  542. #ifndef elf_backend_write_core_note
  543. #define elf_backend_write_core_note             NULL
  544. #endif
  545. #ifndef elf_backend_lookup_section_flags_hook
  546. #define elf_backend_lookup_section_flags_hook   NULL
  547. #endif
  548. #ifndef elf_backend_reloc_type_class
  549. #define elf_backend_reloc_type_class            _bfd_elf_reloc_type_class
  550. #endif
  551. #ifndef elf_backend_discard_info
  552. #define elf_backend_discard_info                NULL
  553. #endif
  554. #ifndef elf_backend_ignore_discarded_relocs
  555. #define elf_backend_ignore_discarded_relocs     NULL
  556. #endif
  557. #ifndef elf_backend_action_discarded
  558. #define elf_backend_action_discarded _bfd_elf_default_action_discarded
  559. #endif
  560. #ifndef elf_backend_eh_frame_address_size
  561. #define elf_backend_eh_frame_address_size _bfd_elf_eh_frame_address_size
  562. #endif
  563. #ifndef elf_backend_can_make_relative_eh_frame
  564. #define elf_backend_can_make_relative_eh_frame  _bfd_elf_can_make_relative
  565. #endif
  566. #ifndef elf_backend_can_make_lsda_relative_eh_frame
  567. #define elf_backend_can_make_lsda_relative_eh_frame     _bfd_elf_can_make_relative
  568. #endif
  569. #ifndef elf_backend_encode_eh_address
  570. #define elf_backend_encode_eh_address           _bfd_elf_encode_eh_address
  571. #endif
  572. #ifndef elf_backend_write_section
  573. #define elf_backend_write_section               NULL
  574. #endif
  575. #ifndef elf_backend_mips_irix_compat
  576. #define elf_backend_mips_irix_compat            NULL
  577. #endif
  578. #ifndef elf_backend_mips_rtype_to_howto
  579. #define elf_backend_mips_rtype_to_howto         NULL
  580. #endif
  581.  
  582. /* Previously, backends could only use SHT_REL or SHT_RELA relocation
  583.    sections, but not both.  They defined USE_REL to indicate SHT_REL
  584.    sections, and left it undefined to indicated SHT_RELA sections.
  585.    For backwards compatibility, we still support this usage.  */
  586. #ifndef USE_REL
  587. #define USE_REL 0
  588. #endif
  589.  
  590. /* Use these in new code.  */
  591. #ifndef elf_backend_may_use_rel_p
  592. #define elf_backend_may_use_rel_p USE_REL
  593. #endif
  594. #ifndef elf_backend_may_use_rela_p
  595. #define elf_backend_may_use_rela_p !USE_REL
  596. #endif
  597. #ifndef elf_backend_default_use_rela_p
  598. #define elf_backend_default_use_rela_p !USE_REL
  599. #endif
  600. #ifndef elf_backend_rela_plts_and_copies_p
  601. #define elf_backend_rela_plts_and_copies_p elf_backend_default_use_rela_p
  602. #endif
  603.  
  604. #ifndef elf_backend_rela_normal
  605. #define elf_backend_rela_normal 0
  606. #endif
  607.  
  608. #ifndef elf_backend_plt_sym_val
  609. #define elf_backend_plt_sym_val NULL
  610. #endif
  611. #ifndef elf_backend_relplt_name
  612. #define elf_backend_relplt_name NULL
  613. #endif
  614.  
  615. #ifndef ELF_MACHINE_ALT1
  616. #define ELF_MACHINE_ALT1 0
  617. #endif
  618.  
  619. #ifndef ELF_MACHINE_ALT2
  620. #define ELF_MACHINE_ALT2 0
  621. #endif
  622.  
  623. #ifndef elf_backend_size_info
  624. #define elf_backend_size_info _bfd_elf64_size_info
  625. #endif
  626.  
  627. #ifndef elf_backend_special_sections
  628. #define elf_backend_special_sections NULL
  629. #endif
  630.  
  631. #ifndef elf_backend_sign_extend_vma
  632. #define elf_backend_sign_extend_vma 0
  633. #endif
  634.  
  635. #ifndef elf_backend_link_order_error_handler
  636. #define elf_backend_link_order_error_handler _bfd_default_error_handler
  637. #endif
  638.  
  639. #ifndef elf_backend_common_definition
  640. #define elf_backend_common_definition _bfd_elf_common_definition
  641. #endif
  642.  
  643. #ifndef elf_backend_common_section_index
  644. #define elf_backend_common_section_index _bfd_elf_common_section_index
  645. #endif
  646.  
  647. #ifndef elf_backend_common_section
  648. #define elf_backend_common_section _bfd_elf_common_section
  649. #endif
  650.  
  651. #ifndef elf_backend_merge_symbol
  652. #define elf_backend_merge_symbol NULL
  653. #endif
  654.  
  655. #ifndef elf_backend_hash_symbol
  656. #define elf_backend_hash_symbol _bfd_elf_hash_symbol
  657. #endif
  658.  
  659. #ifndef elf_backend_is_function_type
  660. #define elf_backend_is_function_type _bfd_elf_is_function_type
  661. #endif
  662.  
  663. #ifndef elf_backend_maybe_function_sym
  664. #define elf_backend_maybe_function_sym _bfd_elf_maybe_function_sym
  665. #endif
  666.  
  667. #ifndef elf_match_priority
  668. #define elf_match_priority \
  669.   (ELF_ARCH == bfd_arch_unknown ? 2 : ELF_OSABI == ELFOSABI_NONE ? 1 : 0)
  670. #endif
  671.  
  672. extern const struct elf_size_info _bfd_elf64_size_info;
  673.  
  674. static struct elf_backend_data elf64_bed =
  675. {
  676.   ELF_ARCH,                     /* arch */
  677.   ELF_TARGET_ID,                /* target_id */
  678.   ELF_MACHINE_CODE,             /* elf_machine_code */
  679.   ELF_OSABI,                    /* elf_osabi  */
  680.   ELF_MAXPAGESIZE,              /* maxpagesize */
  681.   ELF_MINPAGESIZE,              /* minpagesize */
  682.   ELF_COMMONPAGESIZE,           /* commonpagesize */
  683.   ELF_DYNAMIC_SEC_FLAGS,        /* dynamic_sec_flags */
  684.   elf_backend_arch_data,
  685.   elf_info_to_howto,
  686.   elf_info_to_howto_rel,
  687.   elf_backend_sym_is_global,
  688.   elf_backend_object_p,
  689.   elf_backend_symbol_processing,
  690.   elf_backend_symbol_table_processing,
  691.   elf_backend_get_symbol_type,
  692.   elf_backend_archive_symbol_lookup,
  693.   elf_backend_name_local_section_symbols,
  694.   elf_backend_section_processing,
  695.   elf_backend_section_from_shdr,
  696.   elf_backend_section_flags,
  697.   elf_backend_get_sec_type_attr,
  698.   elf_backend_section_from_phdr,
  699.   elf_backend_fake_sections,
  700.   elf_backend_section_from_bfd_section,
  701.   elf_backend_add_symbol_hook,
  702.   elf_backend_link_output_symbol_hook,
  703.   elf_backend_create_dynamic_sections,
  704.   elf_backend_omit_section_dynsym,
  705.   elf_backend_relocs_compatible,
  706.   elf_backend_check_relocs,
  707.   elf_backend_check_directives,
  708.   elf_backend_notice_as_needed,
  709.   elf_backend_adjust_dynamic_symbol,
  710.   elf_backend_always_size_sections,
  711.   elf_backend_size_dynamic_sections,
  712.   elf_backend_init_index_section,
  713.   elf_backend_relocate_section,
  714.   elf_backend_finish_dynamic_symbol,
  715.   elf_backend_finish_dynamic_sections,
  716.   elf_backend_begin_write_processing,
  717.   elf_backend_final_write_processing,
  718.   elf_backend_additional_program_headers,
  719.   elf_backend_modify_segment_map,
  720.   elf_backend_modify_program_headers,
  721.   elf_backend_gc_keep,
  722.   elf_backend_gc_mark_dynamic_ref,
  723.   elf_backend_gc_mark_hook,
  724.   elf_backend_gc_mark_extra_sections,
  725.   elf_backend_gc_sweep_hook,
  726.   elf_backend_post_process_headers,
  727.   elf_backend_print_symbol_all,
  728.   elf_backend_output_arch_local_syms,
  729.   elf_backend_output_arch_syms,
  730.   elf_backend_copy_indirect_symbol,
  731.   elf_backend_hide_symbol,
  732.   elf_backend_fixup_symbol,
  733.   elf_backend_merge_symbol_attribute,
  734.   elf_backend_get_target_dtag,
  735.   elf_backend_ignore_undef_symbol,
  736.   elf_backend_emit_relocs,
  737.   elf_backend_count_relocs,
  738.   elf_backend_grok_prstatus,
  739.   elf_backend_grok_psinfo,
  740.   elf_backend_write_core_note,
  741.   elf_backend_lookup_section_flags_hook,
  742.   elf_backend_reloc_type_class,
  743.   elf_backend_discard_info,
  744.   elf_backend_ignore_discarded_relocs,
  745.   elf_backend_action_discarded,
  746.   elf_backend_eh_frame_address_size,
  747.   elf_backend_can_make_relative_eh_frame,
  748.   elf_backend_can_make_lsda_relative_eh_frame,
  749.   elf_backend_encode_eh_address,
  750.   elf_backend_write_section,
  751.   elf_backend_mips_irix_compat,
  752.   elf_backend_mips_rtype_to_howto,
  753.   elf_backend_ecoff_debug_swap,
  754.   elf_backend_bfd_from_remote_memory,
  755.   elf_backend_plt_sym_val,
  756.   elf_backend_common_definition,
  757.   elf_backend_common_section_index,
  758.   elf_backend_common_section,
  759.   elf_backend_merge_symbol,
  760.   elf_backend_hash_symbol,
  761.   elf_backend_is_function_type,
  762.   elf_backend_maybe_function_sym,
  763.   elf_backend_link_order_error_handler,
  764.   elf_backend_relplt_name,
  765.   ELF_MACHINE_ALT1,
  766.   ELF_MACHINE_ALT2,
  767.   &elf_backend_size_info,
  768.   elf_backend_special_sections,
  769.   elf_backend_got_header_size,
  770.   elf_backend_got_elt_size,
  771.   elf_backend_obj_attrs_vendor,
  772.   elf_backend_obj_attrs_section,
  773.   elf_backend_obj_attrs_arg_type,
  774.   elf_backend_obj_attrs_section_type,
  775.   elf_backend_obj_attrs_order,
  776.   elf_backend_obj_attrs_handle_unknown,
  777.   elf_backend_static_tls_alignment,
  778.   elf_backend_stack_align,
  779.   elf_backend_collect,
  780.   elf_backend_type_change_ok,
  781.   elf_backend_may_use_rel_p,
  782.   elf_backend_may_use_rela_p,
  783.   elf_backend_default_use_rela_p,
  784.   elf_backend_rela_plts_and_copies_p,
  785.   elf_backend_rela_normal,
  786.   elf_backend_sign_extend_vma,
  787.   elf_backend_want_got_plt,
  788.   elf_backend_plt_readonly,
  789.   elf_backend_want_plt_sym,
  790.   elf_backend_plt_not_loaded,
  791.   elf_backend_plt_alignment,
  792.   elf_backend_can_gc_sections,
  793.   elf_backend_can_refcount,
  794.   elf_backend_want_got_sym,
  795.   elf_backend_want_dynbss,
  796.   elf_backend_want_p_paddr_set_to_zero,
  797.   elf_backend_default_execstack
  798. };
  799.  
  800. /* Forward declaration for use when initialising alternative_target field.  */
  801. #ifdef TARGET_LITTLE_SYM
  802. extern const bfd_target TARGET_LITTLE_SYM;
  803. #endif
  804.  
  805. #ifdef TARGET_BIG_SYM
  806. const bfd_target TARGET_BIG_SYM =
  807. {
  808.   /* name: identify kind of target */
  809.   TARGET_BIG_NAME,
  810.  
  811.   /* flavour: general indication about file */
  812.   bfd_target_elf_flavour,
  813.  
  814.   /* byteorder: data is big endian */
  815.   BFD_ENDIAN_BIG,
  816.  
  817.   /* header_byteorder: header is also big endian */
  818.   BFD_ENDIAN_BIG,
  819.  
  820.   /* object_flags: mask of all file flags */
  821.   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
  822.    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
  823.  
  824.   /* section_flags: mask of all section flags */
  825.   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
  826.    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
  827.    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
  828.  
  829.    /* leading_symbol_char: is the first char of a user symbol
  830.       predictable, and if so what is it */
  831.   elf_symbol_leading_char,
  832.  
  833.   /* ar_pad_char: pad character for filenames within an archive header
  834.      FIXME:  this really has nothing to do with ELF, this is a characteristic
  835.      of the archiver and/or os and should be independently tunable */
  836.   '/',
  837.  
  838.   /* ar_max_namelen: maximum number of characters in an archive header
  839.      FIXME:  this really has nothing to do with ELF, this is a characteristic
  840.      of the archiver and should be independently tunable.  The System V ABI,
  841.      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
  842.   15,
  843.  
  844.   elf_match_priority,
  845.  
  846.   /* Routines to byte-swap various sized integers from the data sections */
  847.   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  848.     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  849.     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
  850.  
  851.   /* Routines to byte-swap various sized integers from the file headers */
  852.   bfd_getb64, bfd_getb_signed_64, bfd_putb64,
  853.     bfd_getb32, bfd_getb_signed_32, bfd_putb32,
  854.     bfd_getb16, bfd_getb_signed_16, bfd_putb16,
  855.  
  856.   /* bfd_check_format: check the format of a file being read */
  857.   { _bfd_dummy_target,          /* unknown format */
  858.     bfd_elf64_object_p,         /* assembler/linker output (object file) */
  859.     bfd_elf64_archive_p,        /* an archive */
  860.     bfd_elf64_core_file_p       /* a core file */
  861.   },
  862.  
  863.   /* bfd_set_format: set the format of a file being written */
  864.   { bfd_false,
  865.     bfd_elf64_mkobject,
  866.     bfd_elf64_mkarchive,
  867.     bfd_elf64_mkcorefile
  868.   },
  869.  
  870.   /* bfd_write_contents: write cached information into a file being written */
  871.   { bfd_false,
  872.     bfd_elf64_write_object_contents,
  873.     bfd_elf64_write_archive_contents,
  874.     bfd_elf64_write_corefile_contents,
  875.   },
  876.  
  877.   BFD_JUMP_TABLE_GENERIC (bfd_elf64),
  878.   BFD_JUMP_TABLE_COPY (bfd_elf64),
  879.   BFD_JUMP_TABLE_CORE (bfd_elf64),
  880. #ifdef bfd_elf64_archive_functions
  881.   BFD_JUMP_TABLE_ARCHIVE (bfd_elf64_archive),
  882. #else
  883.   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
  884. #endif
  885.   BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
  886.   BFD_JUMP_TABLE_RELOCS (bfd_elf64),
  887.   BFD_JUMP_TABLE_WRITE (bfd_elf64),
  888.   BFD_JUMP_TABLE_LINK (bfd_elf64),
  889.   BFD_JUMP_TABLE_DYNAMIC (bfd_elf64),
  890.  
  891.   /* Alternative endian target.  */
  892. #ifdef TARGET_LITTLE_SYM
  893.   & TARGET_LITTLE_SYM,
  894. #else
  895.   NULL,
  896. #endif
  897.  
  898.   /* backend_data: */
  899.   &elf64_bed
  900. };
  901. #endif
  902.  
  903. #ifdef TARGET_LITTLE_SYM
  904. const bfd_target TARGET_LITTLE_SYM =
  905. {
  906.   /* name: identify kind of target */
  907.   TARGET_LITTLE_NAME,
  908.  
  909.   /* flavour: general indication about file */
  910.   bfd_target_elf_flavour,
  911.  
  912.   /* byteorder: data is little endian */
  913.   BFD_ENDIAN_LITTLE,
  914.  
  915.   /* header_byteorder: header is also little endian */
  916.   BFD_ENDIAN_LITTLE,
  917.  
  918.   /* object_flags: mask of all file flags */
  919.   (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS
  920.    | DYNAMIC | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS),
  921.  
  922.   /* section_flags: mask of all section flags */
  923.   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY
  924.    | SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_EXCLUDE | SEC_SORT_ENTRIES
  925.    | SEC_SMALL_DATA | SEC_MERGE | SEC_STRINGS | SEC_GROUP),
  926.  
  927.    /* leading_symbol_char: is the first char of a user symbol
  928.       predictable, and if so what is it */
  929.   elf_symbol_leading_char,
  930.  
  931.   /* ar_pad_char: pad character for filenames within an archive header
  932.      FIXME:  this really has nothing to do with ELF, this is a characteristic
  933.      of the archiver and/or os and should be independently tunable */
  934.   '/',
  935.  
  936.   /* ar_max_namelen: maximum number of characters in an archive header
  937.      FIXME:  this really has nothing to do with ELF, this is a characteristic
  938.      of the archiver and should be independently tunable.  The System V ABI,
  939.      Chapter 7 (Formats & Protocols), Archive section sets this as 15.  */
  940.   15,
  941.  
  942.   elf_match_priority,
  943.  
  944.   /* Routines to byte-swap various sized integers from the data sections */
  945.   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
  946.     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
  947.     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
  948.  
  949.   /* Routines to byte-swap various sized integers from the file headers */
  950.   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
  951.     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
  952.     bfd_getl16, bfd_getl_signed_16, bfd_putl16,
  953.  
  954.   /* bfd_check_format: check the format of a file being read */
  955.   { _bfd_dummy_target,          /* unknown format */
  956.     bfd_elf64_object_p,         /* assembler/linker output (object file) */
  957.     bfd_elf64_archive_p,        /* an archive */
  958.     bfd_elf64_core_file_p       /* a core file */
  959.   },
  960.  
  961.   /* bfd_set_format: set the format of a file being written */
  962.   { bfd_false,
  963.     bfd_elf64_mkobject,
  964.     bfd_elf64_mkarchive,
  965.     bfd_elf64_mkcorefile
  966.   },
  967.  
  968.   /* bfd_write_contents: write cached information into a file being written */
  969.   { bfd_false,
  970.     bfd_elf64_write_object_contents,
  971.     bfd_elf64_write_archive_contents,
  972.     bfd_elf64_write_corefile_contents,
  973.   },
  974.  
  975.   BFD_JUMP_TABLE_GENERIC (bfd_elf64),
  976.   BFD_JUMP_TABLE_COPY (bfd_elf64),
  977.   BFD_JUMP_TABLE_CORE (bfd_elf64),
  978. #ifdef bfd_elf64_archive_functions
  979.   BFD_JUMP_TABLE_ARCHIVE (bfd_elf64_archive),
  980. #else
  981.   BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
  982. #endif
  983.   BFD_JUMP_TABLE_SYMBOLS (bfd_elf64),
  984.   BFD_JUMP_TABLE_RELOCS (bfd_elf64),
  985.   BFD_JUMP_TABLE_WRITE (bfd_elf64),
  986.   BFD_JUMP_TABLE_LINK (bfd_elf64),
  987.   BFD_JUMP_TABLE_DYNAMIC (bfd_elf64),
  988.  
  989.   /* Alternative endian target.  */
  990. #ifdef TARGET_BIG_SYM
  991.   & TARGET_BIG_SYM,
  992. #else
  993.   NULL,
  994. #endif
  995.  
  996.   /* backend_data: */
  997.   &elf64_bed
  998. };
  999. #endif
  1000.