1 /* SuperH SH64-specific support for 64-bit ELF
2    Copyright 2000, 2001, 2002, 2003, 2004, 2005
3    Free Software Foundation, Inc.
4 
5    This file is part of BFD, the Binary File Descriptor library.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
20 
21 #define SH64_ELF64
22 
23 #include "bfd.h"
24 #include "sysdep.h"
25 #include "bfdlink.h"
26 #include "libbfd.h"
27 #include "elf-bfd.h"
28 #include "elf/sh.h"
29 
30 /* Add a suffix for datalabel indirection symbols.  It must not match any
31    other symbols; user symbols with or without version or other
32    decoration.  It must only be used internally and not emitted by any
33    means.  */
34 #define DATALABEL_SUFFIX " DL"
35 
36 #define GOT_BIAS (-((long)-32768))
37 
38 #define PLT_ENTRY_SIZE 64
39 
40 /* Return size of a PLT entry.  */
41 #define elf_sh64_sizeof_plt(info) PLT_ENTRY_SIZE
42 
43 /* Return offset of the PLT0 address in an absolute PLT entry.  */
44 #define elf_sh64_plt_plt0_offset(info) 32
45 
46 /* Return offset of the linker in PLT0 entry.  */
47 #define elf_sh64_plt0_gotplt_offset(info) 0
48 
49 /* Return offset of the trampoline in PLT entry */
50 #define elf_sh64_plt_temp_offset(info) 33 /* Add one because it's SHmedia.  */
51 
52 /* Return offset of the symbol in PLT entry.  */
53 #define elf_sh64_plt_symbol_offset(info) 0
54 
55 /* Return offset of the relocation in PLT entry.  */
56 #define elf_sh64_plt_reloc_offset(info) (info->shared ? 52 : 44)
57 
58 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
59 
60 /* The sh linker needs to keep track of the number of relocs that it
61    decides to copy in check_relocs for each symbol.  This is so that
62    it can discard PC relative relocs if it doesn't need them when
63    linking with -Bsymbolic.  We store the information in a field
64    extending the regular ELF linker hash table.  */
65 
66 /* This structure keeps track of the number of PC relative relocs we
67    have copied for a given symbol.  */
68 
69 struct elf_sh64_pcrel_relocs_copied
70 {
71   /* Next section.  */
72   struct elf_sh64_pcrel_relocs_copied *next;
73   /* A section in dynobj.  */
74   asection *section;
75   /* Number of relocs copied in this section.  */
76   bfd_size_type count;
77 };
78 
79 /* sh ELF linker hash entry.  */
80 
81 struct elf_sh64_link_hash_entry
82 {
83   struct elf_link_hash_entry root;
84 
85   bfd_vma datalabel_got_offset;
86 
87   /* Number of PC relative relocs copied for this symbol.  */
88   struct elf_sh64_pcrel_relocs_copied *pcrel_relocs_copied;
89 };
90 
91 /* sh ELF linker hash table.  */
92 
93 struct elf_sh64_link_hash_table
94 {
95   struct elf_link_hash_table root;
96 };
97 
98 /* Traverse an sh ELF linker hash table.  */
99 
100 #define sh64_elf64_link_hash_traverse(table, func, info)		\
101   (elf_link_hash_traverse						\
102    (&(table)->root,							\
103     (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
104     (info)))
105 
106 /* Get the sh ELF linker hash table from a link_info structure.  */
107 
108 #define sh64_elf64_hash_table(p) \
109   ((struct elf_sh64_link_hash_table *) ((p)->hash))
110 
111 static bfd_reloc_status_type sh_elf64_ignore_reloc
112   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
113 static bfd_reloc_status_type sh_elf64_reloc
114   (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
115 
116 static reloc_howto_type sh_elf64_howto_table[] = {
117   /* No relocation.  */
118   HOWTO (R_SH_NONE,		/* type */
119 	 0,			/* rightshift */
120 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
121 	 0,			/* bitsize */
122 	 FALSE,			/* pc_relative */
123 	 0,			/* bitpos */
124 	 complain_overflow_dont, /* complain_on_overflow */
125 	 sh_elf64_ignore_reloc,	/* special_function */
126 	 "R_SH_NONE",		/* name */
127 	 FALSE,			/* partial_inplace */
128 	 0,			/* src_mask */
129 	 0,			/* dst_mask */
130 	 FALSE),		/* pcrel_offset */
131 
132   /* 32 bit absolute relocation.  Setting partial_inplace to TRUE and
133      src_mask to a non-zero value is similar to the COFF toolchain.  */
134   HOWTO (R_SH_DIR32,		/* type */
135 	 0,			/* rightshift */
136 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
137 	 32,			/* bitsize */
138 	 FALSE,			/* pc_relative */
139 	 0,			/* bitpos */
140 	 complain_overflow_bitfield, /* complain_on_overflow */
141 	 sh_elf64_reloc,		/* special_function */
142 	 "R_SH_DIR32",		/* name */
143 	 TRUE,			/* partial_inplace */
144 	 0xffffffff,		/* src_mask */
145 	 0xffffffff,		/* dst_mask */
146 	 FALSE),		/* pcrel_offset */
147 
148   /* 32 bit PC relative relocation.  */
149   HOWTO (R_SH_REL32,		/* type */
150 	 0,			/* rightshift */
151 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
152 	 32,			/* bitsize */
153 	 TRUE,			/* pc_relative */
154 	 0,			/* bitpos */
155 	 complain_overflow_signed, /* complain_on_overflow */
156 	 sh_elf64_ignore_reloc,	/* special_function */
157 	 "R_SH_REL32",		/* name */
158 	 FALSE,			/* partial_inplace */
159 	 0,			/* src_mask */
160 	 0xffffffff,		/* dst_mask */
161 	 TRUE),			/* pcrel_offset */
162 
163   /* For 32-bit sh, this is R_SH_DIR8WPN.  */
164   EMPTY_HOWTO (3),
165 
166   /* For 32-bit sh, this is R_SH_IND12W.  */
167   EMPTY_HOWTO (4),
168 
169   /* For 32-bit sh, this is R_SH_DIR8WPL.  */
170   EMPTY_HOWTO (5),
171 
172   /* For 32-bit sh, this is R_SH_DIR8WPZ.  */
173   EMPTY_HOWTO (6),
174 
175   /* For 32-bit sh, this is R_SH_DIR8BP.  */
176   EMPTY_HOWTO (7),
177 
178   /* For 32-bit sh, this is R_SH_DIR8W.  */
179   EMPTY_HOWTO (8),
180 
181   /* For 32-bit sh, this is R_SH_DIR8L.  */
182   EMPTY_HOWTO (9),
183 
184   EMPTY_HOWTO (10),
185   EMPTY_HOWTO (11),
186   EMPTY_HOWTO (12),
187   EMPTY_HOWTO (13),
188   EMPTY_HOWTO (14),
189   EMPTY_HOWTO (15),
190   EMPTY_HOWTO (16),
191   EMPTY_HOWTO (17),
192   EMPTY_HOWTO (18),
193   EMPTY_HOWTO (19),
194   EMPTY_HOWTO (20),
195   EMPTY_HOWTO (21),
196   EMPTY_HOWTO (22),
197   EMPTY_HOWTO (23),
198   EMPTY_HOWTO (24),
199 
200   /* The remaining relocs are a GNU extension used for relaxing.  The
201      final pass of the linker never needs to do anything with any of
202      these relocs.  Any required operations are handled by the
203      relaxation code.  */
204 
205   /* A 16 bit switch table entry.  This is generated for an expression
206      such as ``.word L1 - L2''.  The offset holds the difference
207      between the reloc address and L2.  */
208   HOWTO (R_SH_SWITCH16,		/* type */
209 	 0,			/* rightshift */
210 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
211 	 16,			/* bitsize */
212 	 FALSE,			/* pc_relative */
213 	 0,			/* bitpos */
214 	 complain_overflow_unsigned, /* complain_on_overflow */
215 	 sh_elf64_ignore_reloc,	/* special_function */
216 	 "R_SH_SWITCH16",	/* name */
217 	 FALSE,			/* partial_inplace */
218 	 0,			/* src_mask */
219 	 0,			/* dst_mask */
220 	 TRUE),			/* pcrel_offset */
221 
222   /* A 32 bit switch table entry.  This is generated for an expression
223      such as ``.long L1 - L2''.  The offset holds the difference
224      between the reloc address and L2.  */
225   HOWTO (R_SH_SWITCH32,		/* type */
226 	 0,			/* rightshift */
227 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
228 	 32,			/* bitsize */
229 	 FALSE,			/* pc_relative */
230 	 0,			/* bitpos */
231 	 complain_overflow_unsigned, /* complain_on_overflow */
232 	 sh_elf64_ignore_reloc,	/* special_function */
233 	 "R_SH_SWITCH32",	/* name */
234 	 FALSE,			/* partial_inplace */
235 	 0,			/* src_mask */
236 	 0,			/* dst_mask */
237 	 TRUE),			/* pcrel_offset */
238 
239   /* For 32-bit sh, this is R_SH_USES.  */
240   EMPTY_HOWTO (27),
241 
242   /* For 32-bit sh, this is R_SH_COUNT.  */
243   EMPTY_HOWTO (28),
244 
245   /* For 32-bit sh, this is R_SH_ALIGN.  FIXME: For linker relaxation,
246      this might be emitted.  When linker relaxation is implemented, we
247      might want to use it.  */
248   EMPTY_HOWTO (29),
249 
250   /* For 32-bit sh, this is R_SH_CODE.  FIXME: For linker relaxation,
251      this might be emitted.  When linker relaxation is implemented, we
252      might want to use it.  */
253   EMPTY_HOWTO (30),
254 
255   /* For 32-bit sh, this is R_SH_DATA.  FIXME: For linker relaxation,
256      this might be emitted.  When linker relaxation is implemented, we
257      might want to use it.  */
258   EMPTY_HOWTO (31),
259 
260   /* For 32-bit sh, this is R_SH_LABEL.  FIXME: For linker relaxation,
261      this might be emitted.  When linker relaxation is implemented, we
262      might want to use it.  */
263   EMPTY_HOWTO (32),
264 
265   /* An 8 bit switch table entry.  This is generated for an expression
266      such as ``.word L1 - L2''.  The offset holds the difference
267      between the reloc address and L2.  */
268   HOWTO (R_SH_SWITCH8,		/* type */
269 	 0,			/* rightshift */
270 	 0,			/* size (0 = byte, 1 = short, 2 = long) */
271 	 8,			/* bitsize */
272 	 FALSE,			/* pc_relative */
273 	 0,			/* bitpos */
274 	 complain_overflow_unsigned, /* complain_on_overflow */
275 	 sh_elf64_ignore_reloc,	/* special_function */
276 	 "R_SH_SWITCH8",	/* name */
277 	 FALSE,			/* partial_inplace */
278 	 0,			/* src_mask */
279 	 0,			/* dst_mask */
280 	 TRUE),			/* pcrel_offset */
281 
282   /* GNU extension to record C++ vtable hierarchy */
283   HOWTO (R_SH_GNU_VTINHERIT, /* type */
284          0,                     /* rightshift */
285          2,                     /* size (0 = byte, 1 = short, 2 = long) */
286          0,                     /* bitsize */
287          FALSE,                 /* pc_relative */
288          0,                     /* bitpos */
289          complain_overflow_dont, /* complain_on_overflow */
290          NULL,                  /* special_function */
291          "R_SH_GNU_VTINHERIT", /* name */
292          FALSE,                 /* partial_inplace */
293          0,                     /* src_mask */
294          0,                     /* dst_mask */
295          FALSE),                /* pcrel_offset */
296 
297   /* GNU extension to record C++ vtable member usage */
298   HOWTO (R_SH_GNU_VTENTRY,     /* type */
299          0,                     /* rightshift */
300          2,                     /* size (0 = byte, 1 = short, 2 = long) */
301          0,                     /* bitsize */
302          FALSE,                 /* pc_relative */
303          0,                     /* bitpos */
304          complain_overflow_dont, /* complain_on_overflow */
305          _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
306          "R_SH_GNU_VTENTRY",   /* name */
307          FALSE,                 /* partial_inplace */
308          0,                     /* src_mask */
309          0,                     /* dst_mask */
310          FALSE),                /* pcrel_offset */
311 
312   /* For 32-bit sh, this is R_SH_LOOP_START.  */
313   EMPTY_HOWTO (36),
314 
315   /* For 32-bit sh, this is R_SH_LOOP_END.  */
316   EMPTY_HOWTO (37),
317 
318   EMPTY_HOWTO (38),
319   EMPTY_HOWTO (39),
320   EMPTY_HOWTO (40),
321   EMPTY_HOWTO (41),
322   EMPTY_HOWTO (42),
323   EMPTY_HOWTO (43),
324   EMPTY_HOWTO (44),
325 
326   /* Used in SHLLI.L and SHLRI.L.  */
327   HOWTO (R_SH_DIR5U,		/* type */
328 	 0,			/* rightshift */
329 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
330 	 5,			/* bitsize */
331 	 FALSE,			/* pc_relative */
332 	 10,			/* bitpos */
333 	 complain_overflow_unsigned, /* complain_on_overflow */
334 	 bfd_elf_generic_reloc,	/* special_function */
335 	 "R_SH_DIR5U",		/* name */
336 	 FALSE,			/* partial_inplace */
337 	 0,			/* src_mask */
338 	 0xfc00,		/* dst_mask */
339 	 FALSE),	       	/* pcrel_offset */
340 
341   /* Used in SHARI, SHLLI et al.  */
342   HOWTO (R_SH_DIR6U,		/* type */
343 	 0,			/* rightshift */
344 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
345 	 6,			/* bitsize */
346 	 FALSE,			/* pc_relative */
347 	 10,			/* bitpos */
348 	 complain_overflow_unsigned, /* complain_on_overflow */
349 	 bfd_elf_generic_reloc,	/* special_function */
350 	 "R_SH_DIR6U",		/* name */
351 	 FALSE,			/* partial_inplace */
352 	 0,			/* src_mask */
353 	 0xfc00,		/* dst_mask */
354 	 FALSE),	       	/* pcrel_offset */
355 
356   /* Used in BxxI, LDHI.L et al.  */
357   HOWTO (R_SH_DIR6S,		/* type */
358 	 0,			/* rightshift */
359 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
360 	 6,			/* bitsize */
361 	 FALSE,			/* pc_relative */
362 	 10,			/* bitpos */
363 	 complain_overflow_signed, /* complain_on_overflow */
364 	 bfd_elf_generic_reloc,	/* special_function */
365 	 "R_SH_DIR6S",		/* name */
366 	 FALSE,			/* partial_inplace */
367 	 0,			/* src_mask */
368 	 0xfc00,		/* dst_mask */
369 	 FALSE),	       	/* pcrel_offset */
370 
371   /* Used in ADDI, ANDI et al.  */
372   HOWTO (R_SH_DIR10S,		/* type */
373 	 0,			/* rightshift */
374 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
375 	 10,			/* bitsize */
376 	 FALSE,			/* pc_relative */
377 	 10,			/* bitpos */
378 	 complain_overflow_signed, /* complain_on_overflow */
379 	 bfd_elf_generic_reloc,	/* special_function */
380 	 "R_SH_DIR10S",		/* name */
381 	 FALSE,			/* partial_inplace */
382 	 0,			/* src_mask */
383 	 0xffc00,		/* dst_mask */
384 	 FALSE),	       	/* pcrel_offset */
385 
386   /* Used in LD.UW, ST.W et al.  */
387   HOWTO (R_SH_DIR10SW,	/* type */
388 	 1,			/* rightshift */
389 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
390 	 11,			/* bitsize */
391 	 FALSE,			/* pc_relative */
392 	 10,			/* bitpos */
393 	 complain_overflow_signed, /* complain_on_overflow */
394 	 bfd_elf_generic_reloc,	/* special_function */
395 	 "R_SH_DIR10SW",	/* name */
396 	 FALSE,			/* partial_inplace */
397 	 0,			/* src_mask */
398 	 0xffc00,		/* dst_mask */
399 	 FALSE),	       	/* pcrel_offset */
400 
401   /* Used in LD.L, FLD.S et al.  */
402   HOWTO (R_SH_DIR10SL,	/* type */
403 	 2,			/* rightshift */
404 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
405 	 12,			/* bitsize */
406 	 FALSE,			/* pc_relative */
407 	 10,			/* bitpos */
408 	 complain_overflow_signed, /* complain_on_overflow */
409 	 bfd_elf_generic_reloc,	/* special_function */
410 	 "R_SH_DIR10SL",	/* name */
411 	 FALSE,			/* partial_inplace */
412 	 0,			/* src_mask */
413 	 0xffc00,		/* dst_mask */
414 	 FALSE),	       	/* pcrel_offset */
415 
416   /* Used in FLD.D, FST.P et al.  */
417   HOWTO (R_SH_DIR10SQ,	/* type */
418 	 3,			/* rightshift */
419 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
420 	 13,			/* bitsize */
421 	 FALSE,			/* pc_relative */
422 	 10,			/* bitpos */
423 	 complain_overflow_signed, /* complain_on_overflow */
424 	 bfd_elf_generic_reloc,	/* special_function */
425 	 "R_SH_DIR10SQ",	/* name */
426 	 FALSE,			/* partial_inplace */
427 	 0,			/* src_mask */
428 	 0xffc00,		/* dst_mask */
429 	 FALSE),	       	/* pcrel_offset */
430 
431   EMPTY_HOWTO (52),
432   EMPTY_HOWTO (53),
433   EMPTY_HOWTO (54),
434   EMPTY_HOWTO (55),
435   EMPTY_HOWTO (56),
436   EMPTY_HOWTO (57),
437   EMPTY_HOWTO (58),
438   EMPTY_HOWTO (59),
439   EMPTY_HOWTO (60),
440   EMPTY_HOWTO (61),
441   EMPTY_HOWTO (62),
442   EMPTY_HOWTO (63),
443   EMPTY_HOWTO (64),
444   EMPTY_HOWTO (65),
445   EMPTY_HOWTO (66),
446   EMPTY_HOWTO (67),
447   EMPTY_HOWTO (68),
448   EMPTY_HOWTO (69),
449   EMPTY_HOWTO (70),
450   EMPTY_HOWTO (71),
451   EMPTY_HOWTO (72),
452   EMPTY_HOWTO (73),
453   EMPTY_HOWTO (74),
454   EMPTY_HOWTO (75),
455   EMPTY_HOWTO (76),
456   EMPTY_HOWTO (77),
457   EMPTY_HOWTO (78),
458   EMPTY_HOWTO (79),
459   EMPTY_HOWTO (80),
460   EMPTY_HOWTO (81),
461   EMPTY_HOWTO (82),
462   EMPTY_HOWTO (83),
463   EMPTY_HOWTO (84),
464   EMPTY_HOWTO (85),
465   EMPTY_HOWTO (86),
466   EMPTY_HOWTO (87),
467   EMPTY_HOWTO (88),
468   EMPTY_HOWTO (89),
469   EMPTY_HOWTO (90),
470   EMPTY_HOWTO (91),
471   EMPTY_HOWTO (92),
472   EMPTY_HOWTO (93),
473   EMPTY_HOWTO (94),
474   EMPTY_HOWTO (95),
475   EMPTY_HOWTO (96),
476   EMPTY_HOWTO (97),
477   EMPTY_HOWTO (98),
478   EMPTY_HOWTO (99),
479   EMPTY_HOWTO (100),
480   EMPTY_HOWTO (101),
481   EMPTY_HOWTO (102),
482   EMPTY_HOWTO (103),
483   EMPTY_HOWTO (104),
484   EMPTY_HOWTO (105),
485   EMPTY_HOWTO (106),
486   EMPTY_HOWTO (107),
487   EMPTY_HOWTO (108),
488   EMPTY_HOWTO (109),
489   EMPTY_HOWTO (110),
490   EMPTY_HOWTO (111),
491   EMPTY_HOWTO (112),
492   EMPTY_HOWTO (113),
493   EMPTY_HOWTO (114),
494   EMPTY_HOWTO (115),
495   EMPTY_HOWTO (116),
496   EMPTY_HOWTO (117),
497   EMPTY_HOWTO (118),
498   EMPTY_HOWTO (119),
499   EMPTY_HOWTO (120),
500   EMPTY_HOWTO (121),
501   EMPTY_HOWTO (122),
502   EMPTY_HOWTO (123),
503   EMPTY_HOWTO (124),
504   EMPTY_HOWTO (125),
505   EMPTY_HOWTO (126),
506   EMPTY_HOWTO (127),
507   EMPTY_HOWTO (128),
508   EMPTY_HOWTO (129),
509   EMPTY_HOWTO (130),
510   EMPTY_HOWTO (131),
511   EMPTY_HOWTO (132),
512   EMPTY_HOWTO (133),
513   EMPTY_HOWTO (134),
514   EMPTY_HOWTO (135),
515   EMPTY_HOWTO (136),
516   EMPTY_HOWTO (137),
517   EMPTY_HOWTO (138),
518   EMPTY_HOWTO (139),
519   EMPTY_HOWTO (140),
520   EMPTY_HOWTO (141),
521   EMPTY_HOWTO (142),
522   EMPTY_HOWTO (143),
523   EMPTY_HOWTO (144),
524   EMPTY_HOWTO (145),
525   EMPTY_HOWTO (146),
526   EMPTY_HOWTO (147),
527   EMPTY_HOWTO (148),
528   EMPTY_HOWTO (149),
529   EMPTY_HOWTO (150),
530   EMPTY_HOWTO (151),
531   EMPTY_HOWTO (152),
532   EMPTY_HOWTO (153),
533   EMPTY_HOWTO (154),
534   EMPTY_HOWTO (155),
535   EMPTY_HOWTO (156),
536   EMPTY_HOWTO (157),
537   EMPTY_HOWTO (158),
538   EMPTY_HOWTO (159),
539 
540   /* Relocs for dynamic linking for 32-bit SH would follow.  We don't have
541      any dynamic linking support for 64-bit SH at present.  */
542 
543   EMPTY_HOWTO (160),
544   EMPTY_HOWTO (161),
545   EMPTY_HOWTO (162),
546   EMPTY_HOWTO (163),
547   EMPTY_HOWTO (164),
548   EMPTY_HOWTO (165),
549   EMPTY_HOWTO (166),
550   EMPTY_HOWTO (167),
551   EMPTY_HOWTO (168),
552 
553   /* Back to SH5 relocations.  */
554   /* Used in MOVI and SHORI (x & 65536).  */
555   HOWTO (R_SH_GOT_LOW16,	/* type */
556 	 0,			/* rightshift */
557 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
558 	 64,			/* bitsize */
559 	 FALSE,			/* pc_relative */
560 	 10,			/* bitpos */
561 	 complain_overflow_dont, /* complain_on_overflow */
562 	 bfd_elf_generic_reloc,	/* special_function */
563 	 "R_SH_GOT_LOW16",    	/* name */
564 	 FALSE,			/* partial_inplace */
565 	 0,			/* src_mask */
566 	 0x3fffc00,		/* dst_mask */
567 	 FALSE),	       	/* pcrel_offset */
568 
569   /* Used in MOVI and SHORI ((x >> 16) & 65536).  */
570   HOWTO (R_SH_GOT_MEDLOW16,	/* type */
571 	 16,			/* rightshift */
572 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
573 	 64,			/* bitsize */
574 	 FALSE,			/* pc_relative */
575 	 10,			/* bitpos */
576 	 complain_overflow_dont, /* complain_on_overflow */
577 	 bfd_elf_generic_reloc,	/* special_function */
578 	 "R_SH_GOT_MEDLOW16",	/* name */
579 	 FALSE,			/* partial_inplace */
580 	 0,			/* src_mask */
581 	 0x3fffc00,		/* dst_mask */
582 	 FALSE),	       	/* pcrel_offset */
583 
584   /* Used in MOVI and SHORI ((x >> 32) & 65536).  */
585   HOWTO (R_SH_GOT_MEDHI16,	/* type */
586 	 32,			/* rightshift */
587 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
588 	 64,			/* bitsize */
589 	 FALSE,			/* pc_relative */
590 	 10,			/* bitpos */
591 	 complain_overflow_dont, /* complain_on_overflow */
592 	 bfd_elf_generic_reloc,	/* special_function */
593 	 "R_SH_GOT_MEDHI16",	/* name */
594 	 FALSE,			/* partial_inplace */
595 	 0,			/* src_mask */
596 	 0x3fffc00,		/* dst_mask */
597 	 FALSE),	       	/* pcrel_offset */
598 
599   /* Used in MOVI and SHORI ((x >> 48) & 65536).  */
600   HOWTO (R_SH_GOT_HI16,		/* type */
601 	 48,			/* rightshift */
602 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
603 	 64,			/* bitsize */
604 	 FALSE,			/* pc_relative */
605 	 10,			/* bitpos */
606 	 complain_overflow_dont, /* complain_on_overflow */
607 	 bfd_elf_generic_reloc,	/* special_function */
608 	 "R_SH_GOT_HI16",	/* name */
609 	 FALSE,			/* partial_inplace */
610 	 0,			/* src_mask */
611 	 0x3fffc00,		/* dst_mask */
612 	 FALSE),	       	/* pcrel_offset */
613 
614   /* Used in MOVI and SHORI (x & 65536).  */
615   HOWTO (R_SH_GOTPLT_LOW16,	/* type */
616 	 0,			/* rightshift */
617 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
618 	 64,			/* bitsize */
619 	 FALSE,			/* pc_relative */
620 	 10,			/* bitpos */
621 	 complain_overflow_dont, /* complain_on_overflow */
622 	 bfd_elf_generic_reloc,	/* special_function */
623 	 "R_SH_GOTPLT_LOW16",   /* name */
624 	 FALSE,			/* partial_inplace */
625 	 0,			/* src_mask */
626 	 0x3fffc00,		/* dst_mask */
627 	 FALSE),	       	/* pcrel_offset */
628 
629   /* Used in MOVI and SHORI ((x >> 16) & 65536).  */
630   HOWTO (R_SH_GOTPLT_MEDLOW16,	/* type */
631 	 16,			/* rightshift */
632 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
633 	 64,			/* bitsize */
634 	 FALSE,			/* pc_relative */
635 	 10,			/* bitpos */
636 	 complain_overflow_dont, /* complain_on_overflow */
637 	 bfd_elf_generic_reloc,	/* special_function */
638 	 "R_SH_GOTPLT_MEDLOW16", /* name */
639 	 FALSE,			/* partial_inplace */
640 	 0,			/* src_mask */
641 	 0x3fffc00,		/* dst_mask */
642 	 FALSE),	       	/* pcrel_offset */
643 
644   /* Used in MOVI and SHORI ((x >> 32) & 65536).  */
645   HOWTO (R_SH_GOTPLT_MEDHI16,	/* type */
646 	 32,			/* rightshift */
647 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
648 	 64,			/* bitsize */
649 	 FALSE,			/* pc_relative */
650 	 10,			/* bitpos */
651 	 complain_overflow_dont, /* complain_on_overflow */
652 	 bfd_elf_generic_reloc,	/* special_function */
653 	 "R_SH_GOTPLT_MEDHI16",	/* name */
654 	 FALSE,			/* partial_inplace */
655 	 0,			/* src_mask */
656 	 0x3fffc00,		/* dst_mask */
657 	 FALSE),	       	/* pcrel_offset */
658 
659   /* Used in MOVI and SHORI ((x >> 48) & 65536).  */
660   HOWTO (R_SH_GOTPLT_HI16,	/* type */
661 	 48,			/* rightshift */
662 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
663 	 64,			/* bitsize */
664 	 FALSE,			/* pc_relative */
665 	 10,			/* bitpos */
666 	 complain_overflow_dont, /* complain_on_overflow */
667 	 bfd_elf_generic_reloc,	/* special_function */
668 	 "R_SH_GOTPLT_HI16",	/* name */
669 	 FALSE,			/* partial_inplace */
670 	 0,			/* src_mask */
671 	 0x3fffc00,		/* dst_mask */
672 	 FALSE),	       	/* pcrel_offset */
673 
674   /* Used in MOVI and SHORI (x & 65536).  */
675   HOWTO (R_SH_PLT_LOW16,	/* type */
676 	 0,			/* rightshift */
677 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
678 	 64,			/* bitsize */
679 	 TRUE,			/* pc_relative */
680 	 10,			/* bitpos */
681 	 complain_overflow_dont, /* complain_on_overflow */
682 	 bfd_elf_generic_reloc,	/* special_function */
683 	 "R_SH_PLT_LOW16",    	/* name */
684 	 FALSE,			/* partial_inplace */
685 	 0,			/* src_mask */
686 	 0x3fffc00,		/* dst_mask */
687 	 TRUE),		       	/* pcrel_offset */
688 
689   /* Used in MOVI and SHORI ((x >> 16) & 65536).  */
690   HOWTO (R_SH_PLT_MEDLOW16,	/* type */
691 	 16,			/* rightshift */
692 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
693 	 64,			/* bitsize */
694 	 TRUE,			/* pc_relative */
695 	 10,			/* bitpos */
696 	 complain_overflow_dont, /* complain_on_overflow */
697 	 bfd_elf_generic_reloc,	/* special_function */
698 	 "R_SH_PLT_MEDLOW16",	/* name */
699 	 FALSE,			/* partial_inplace */
700 	 0,			/* src_mask */
701 	 0x3fffc00,		/* dst_mask */
702 	 TRUE),		       	/* pcrel_offset */
703 
704   /* Used in MOVI and SHORI ((x >> 32) & 65536).  */
705   HOWTO (R_SH_PLT_MEDHI16,	/* type */
706 	 32,			/* rightshift */
707 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
708 	 64,			/* bitsize */
709 	 TRUE,			/* pc_relative */
710 	 10,			/* bitpos */
711 	 complain_overflow_dont, /* complain_on_overflow */
712 	 bfd_elf_generic_reloc,	/* special_function */
713 	 "R_SH_PLT_MEDHI16",	/* name */
714 	 FALSE,			/* partial_inplace */
715 	 0,			/* src_mask */
716 	 0x3fffc00,		/* dst_mask */
717 	 TRUE),		       	/* pcrel_offset */
718 
719   /* Used in MOVI and SHORI ((x >> 48) & 65536).  */
720   HOWTO (R_SH_PLT_HI16,		/* type */
721 	 48,			/* rightshift */
722 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
723 	 64,			/* bitsize */
724 	 TRUE,			/* pc_relative */
725 	 10,			/* bitpos */
726 	 complain_overflow_dont, /* complain_on_overflow */
727 	 bfd_elf_generic_reloc,	/* special_function */
728 	 "R_SH_PLT_HI16",	/* name */
729 	 FALSE,			/* partial_inplace */
730 	 0,			/* src_mask */
731 	 0x3fffc00,		/* dst_mask */
732 	 TRUE),		       	/* pcrel_offset */
733 
734   /* Used in MOVI and SHORI (x & 65536).  */
735   HOWTO (R_SH_GOTOFF_LOW16,	/* type */
736 	 0,			/* rightshift */
737 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
738 	 64,			/* bitsize */
739 	 FALSE,			/* pc_relative */
740 	 10,			/* bitpos */
741 	 complain_overflow_dont, /* complain_on_overflow */
742 	 bfd_elf_generic_reloc,	/* special_function */
743 	 "R_SH_GOTOFF_LOW16",   /* name */
744 	 FALSE,			/* partial_inplace */
745 	 0,			/* src_mask */
746 	 0x3fffc00,		/* dst_mask */
747 	 FALSE),	       	/* pcrel_offset */
748 
749   /* Used in MOVI and SHORI ((x >> 16) & 65536).  */
750   HOWTO (R_SH_GOTOFF_MEDLOW16,	/* type */
751 	 16,			/* rightshift */
752 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
753 	 64,			/* bitsize */
754 	 FALSE,			/* pc_relative */
755 	 10,			/* bitpos */
756 	 complain_overflow_dont, /* complain_on_overflow */
757 	 bfd_elf_generic_reloc,	/* special_function */
758 	 "R_SH_GOTOFF_MEDLOW16", /* name */
759 	 FALSE,			/* partial_inplace */
760 	 0,			/* src_mask */
761 	 0x3fffc00,		/* dst_mask */
762 	 FALSE),	       	/* pcrel_offset */
763 
764   /* Used in MOVI and SHORI ((x >> 32) & 65536).  */
765   HOWTO (R_SH_GOTOFF_MEDHI16,	/* type */
766 	 32,			/* rightshift */
767 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
768 	 64,			/* bitsize */
769 	 FALSE,			/* pc_relative */
770 	 10,			/* bitpos */
771 	 complain_overflow_dont, /* complain_on_overflow */
772 	 bfd_elf_generic_reloc,	/* special_function */
773 	 "R_SH_GOTOFF_MEDHI16",	/* name */
774 	 FALSE,			/* partial_inplace */
775 	 0,			/* src_mask */
776 	 0x3fffc00,		/* dst_mask */
777 	 FALSE),	       	/* pcrel_offset */
778 
779   /* Used in MOVI and SHORI ((x >> 48) & 65536).  */
780   HOWTO (R_SH_GOTOFF_HI16,	/* type */
781 	 48,			/* rightshift */
782 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
783 	 64,			/* bitsize */
784 	 FALSE,			/* pc_relative */
785 	 10,			/* bitpos */
786 	 complain_overflow_dont, /* complain_on_overflow */
787 	 bfd_elf_generic_reloc,	/* special_function */
788 	 "R_SH_GOTOFF_HI16",	/* name */
789 	 FALSE,			/* partial_inplace */
790 	 0,			/* src_mask */
791 	 0x3fffc00,		/* dst_mask */
792 	 FALSE),	       	/* pcrel_offset */
793 
794   /* Used in MOVI and SHORI (x & 65536).  */
795   HOWTO (R_SH_GOTPC_LOW16,	/* type */
796 	 0,			/* rightshift */
797 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
798 	 64,			/* bitsize */
799 	 TRUE,			/* pc_relative */
800 	 10,			/* bitpos */
801 	 complain_overflow_dont, /* complain_on_overflow */
802 	 bfd_elf_generic_reloc,	/* special_function */
803 	 "R_SH_GOTPC_LOW16",    /* name */
804 	 FALSE,			/* partial_inplace */
805 	 0,			/* src_mask */
806 	 0x3fffc00,		/* dst_mask */
807 	 TRUE),		       	/* pcrel_offset */
808 
809   /* Used in MOVI and SHORI ((x >> 16) & 65536).  */
810   HOWTO (R_SH_GOTPC_MEDLOW16,	/* type */
811 	 16,			/* rightshift */
812 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
813 	 64,			/* bitsize */
814 	 TRUE,			/* pc_relative */
815 	 10,			/* bitpos */
816 	 complain_overflow_dont, /* complain_on_overflow */
817 	 bfd_elf_generic_reloc,	/* special_function */
818 	 "R_SH_GOTPC_MEDLOW16", /* name */
819 	 FALSE,			/* partial_inplace */
820 	 0,			/* src_mask */
821 	 0x3fffc00,		/* dst_mask */
822 	 TRUE),		       	/* pcrel_offset */
823 
824   /* Used in MOVI and SHORI ((x >> 32) & 65536).  */
825   HOWTO (R_SH_GOTPC_MEDHI16,	/* type */
826 	 32,			/* rightshift */
827 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
828 	 64,			/* bitsize */
829 	 TRUE,			/* pc_relative */
830 	 10,			/* bitpos */
831 	 complain_overflow_dont, /* complain_on_overflow */
832 	 bfd_elf_generic_reloc,	/* special_function */
833 	 "R_SH_GOTPC_MEDHI16",	/* name */
834 	 FALSE,			/* partial_inplace */
835 	 0,			/* src_mask */
836 	 0x3fffc00,		/* dst_mask */
837 	 TRUE),		       	/* pcrel_offset */
838 
839   /* Used in MOVI and SHORI ((x >> 48) & 65536).  */
840   HOWTO (R_SH_GOTPC_HI16,	/* type */
841 	 48,			/* rightshift */
842 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
843 	 64,			/* bitsize */
844 	 TRUE,			/* pc_relative */
845 	 10,			/* bitpos */
846 	 complain_overflow_dont, /* complain_on_overflow */
847 	 bfd_elf_generic_reloc,	/* special_function */
848 	 "R_SH_GOTPC_HI16",	/* name */
849 	 FALSE,			/* partial_inplace */
850 	 0,			/* src_mask */
851 	 0x3fffc00,		/* dst_mask */
852 	 TRUE),		       	/* pcrel_offset */
853 
854   /* Used in LD.L, FLD.S et al.  */
855   HOWTO (R_SH_GOT10BY4,		/* type */
856 	 2,			/* rightshift */
857 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
858 	 12,			/* bitsize */
859 	 FALSE,			/* pc_relative */
860 	 10,			/* bitpos */
861 	 complain_overflow_signed, /* complain_on_overflow */
862 	 bfd_elf_generic_reloc,	/* special_function */
863 	 "R_SH_GOT10BY4",	/* name */
864 	 FALSE,			/* partial_inplace */
865 	 0,			/* src_mask */
866 	 0xffc00,		/* dst_mask */
867 	 FALSE),	       	/* pcrel_offset */
868 
869   /* Used in LD.L, FLD.S et al.  */
870   HOWTO (R_SH_GOTPLT10BY4,	/* type */
871 	 2,			/* rightshift */
872 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
873 	 12,			/* bitsize */
874 	 FALSE,			/* pc_relative */
875 	 10,			/* bitpos */
876 	 complain_overflow_signed, /* complain_on_overflow */
877 	 bfd_elf_generic_reloc,	/* special_function */
878 	 "R_SH_GOTPLT10BY4",	/* name */
879 	 FALSE,			/* partial_inplace */
880 	 0,			/* src_mask */
881 	 0xffc00,		/* dst_mask */
882 	 FALSE),	       	/* pcrel_offset */
883 
884   /* Used in FLD.D, FST.P et al.  */
885   HOWTO (R_SH_GOT10BY8,		/* type */
886 	 3,			/* rightshift */
887 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
888 	 13,			/* bitsize */
889 	 FALSE,			/* pc_relative */
890 	 10,			/* bitpos */
891 	 complain_overflow_signed, /* complain_on_overflow */
892 	 bfd_elf_generic_reloc,	/* special_function */
893 	 "R_SH_GOT10BY8",	/* name */
894 	 FALSE,			/* partial_inplace */
895 	 0,			/* src_mask */
896 	 0xffc00,		/* dst_mask */
897 	 FALSE),	       	/* pcrel_offset */
898 
899   /* Used in FLD.D, FST.P et al.  */
900   HOWTO (R_SH_GOTPLT10BY8,	/* type */
901 	 3,			/* rightshift */
902 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
903 	 13,			/* bitsize */
904 	 FALSE,			/* pc_relative */
905 	 10,			/* bitpos */
906 	 complain_overflow_signed, /* complain_on_overflow */
907 	 bfd_elf_generic_reloc,	/* special_function */
908 	 "R_SH_GOTPLT10BY8",	/* name */
909 	 FALSE,			/* partial_inplace */
910 	 0,			/* src_mask */
911 	 0xffc00,		/* dst_mask */
912 	 FALSE),	       	/* pcrel_offset */
913 
914   HOWTO (R_SH_COPY64,		/* type */
915 	 0,			/* rightshift */
916 	 4,			/* size (0 = byte, 1 = short, 2 = long) */
917 	 64,			/* bitsize */
918 	 FALSE,			/* pc_relative */
919 	 0,			/* bitpos */
920 	 complain_overflow_dont, /* complain_on_overflow */
921 	 bfd_elf_generic_reloc,	/* special_function */
922 	 "R_SH_COPY64", 	/* name */
923 	 FALSE,			/* partial_inplace */
924 	 0,			/* src_mask */
925 	 ((bfd_vma) 0) - 1,	/* dst_mask */
926 	 FALSE),	       	/* pcrel_offset */
927 
928   HOWTO (R_SH_GLOB_DAT64,	/* type */
929 	 0,			/* rightshift */
930 	 4,			/* size (0 = byte, 1 = short, 2 = long) */
931 	 64,			/* bitsize */
932 	 FALSE,			/* pc_relative */
933 	 0,			/* bitpos */
934 	 complain_overflow_dont, /* complain_on_overflow */
935 	 bfd_elf_generic_reloc,	/* special_function */
936 	 "R_SH_GLOB_DAT64", 	/* name */
937 	 FALSE,			/* partial_inplace */
938 	 0,			/* src_mask */
939 	 ((bfd_vma) 0) - 1,	/* dst_mask */
940 	 FALSE),	       	/* pcrel_offset */
941 
942   HOWTO (R_SH_JMP_SLOT64,	/* type */
943 	 0,			/* rightshift */
944 	 4,			/* size (0 = byte, 1 = short, 2 = long) */
945 	 64,			/* bitsize */
946 	 FALSE,			/* pc_relative */
947 	 0,			/* bitpos */
948 	 complain_overflow_dont, /* complain_on_overflow */
949 	 bfd_elf_generic_reloc,	/* special_function */
950 	 "R_SH_JMP_SLOT64", 	/* name */
951 	 FALSE,			/* partial_inplace */
952 	 0,			/* src_mask */
953 	 ((bfd_vma) 0) - 1,	/* dst_mask */
954 	 FALSE),	       	/* pcrel_offset */
955 
956   HOWTO (R_SH_RELATIVE64,	/* type */
957 	 0,			/* rightshift */
958 	 4,			/* size (0 = byte, 1 = short, 2 = long) */
959 	 64,			/* bitsize */
960 	 FALSE,			/* pc_relative */
961 	 0,			/* bitpos */
962 	 complain_overflow_dont, /* complain_on_overflow */
963 	 bfd_elf_generic_reloc,	/* special_function */
964 	 "R_SH_RELATIVE64", 	/* name */
965 	 FALSE,			/* partial_inplace */
966 	 0,			/* src_mask */
967 	 ((bfd_vma) 0) - 1,	/* dst_mask */
968 	 FALSE),	       	/* pcrel_offset */
969 
970   EMPTY_HOWTO (197),
971   EMPTY_HOWTO (198),
972   EMPTY_HOWTO (199),
973   EMPTY_HOWTO (200),
974   EMPTY_HOWTO (201),
975   EMPTY_HOWTO (202),
976   EMPTY_HOWTO (203),
977   EMPTY_HOWTO (204),
978   EMPTY_HOWTO (205),
979   EMPTY_HOWTO (206),
980   EMPTY_HOWTO (207),
981   EMPTY_HOWTO (208),
982   EMPTY_HOWTO (209),
983   EMPTY_HOWTO (210),
984   EMPTY_HOWTO (211),
985   EMPTY_HOWTO (212),
986   EMPTY_HOWTO (213),
987   EMPTY_HOWTO (214),
988   EMPTY_HOWTO (215),
989   EMPTY_HOWTO (216),
990   EMPTY_HOWTO (217),
991   EMPTY_HOWTO (218),
992   EMPTY_HOWTO (219),
993   EMPTY_HOWTO (220),
994   EMPTY_HOWTO (221),
995   EMPTY_HOWTO (222),
996   EMPTY_HOWTO (223),
997   EMPTY_HOWTO (224),
998   EMPTY_HOWTO (225),
999   EMPTY_HOWTO (226),
1000   EMPTY_HOWTO (227),
1001   EMPTY_HOWTO (228),
1002   EMPTY_HOWTO (229),
1003   EMPTY_HOWTO (230),
1004   EMPTY_HOWTO (231),
1005   EMPTY_HOWTO (232),
1006   EMPTY_HOWTO (233),
1007   EMPTY_HOWTO (234),
1008   EMPTY_HOWTO (235),
1009   EMPTY_HOWTO (236),
1010   EMPTY_HOWTO (237),
1011   EMPTY_HOWTO (238),
1012   EMPTY_HOWTO (239),
1013   EMPTY_HOWTO (240),
1014   EMPTY_HOWTO (241),
1015 
1016   /* Relocations for SHmedia code.  None of these are partial_inplace or
1017      use the field being relocated.  */
1018 
1019   /* The assembler will generate this reloc before a block of SHmedia
1020      instructions.  A section should be processed as assuming it contains
1021      data, unless this reloc is seen.  Note that a block of SHcompact
1022      instructions are instead preceded by R_SH_CODE.
1023      This is currently not implemented, but should be used for SHmedia
1024      linker relaxation.  */
1025   HOWTO (R_SH_SHMEDIA_CODE,	/* type */
1026 	 0,			/* rightshift */
1027 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
1028 	 0,			/* bitsize */
1029 	 FALSE,			/* pc_relative */
1030 	 0,			/* bitpos */
1031 	 complain_overflow_unsigned, /* complain_on_overflow */
1032 	 sh_elf64_ignore_reloc,	/* special_function */
1033 	 "R_SH_SHMEDIA_CODE",	/* name */
1034 	 FALSE,			/* partial_inplace */
1035 	 0,			/* src_mask */
1036 	 0,			/* dst_mask */
1037 	 FALSE),		/* pcrel_offset */
1038 
1039   /* The assembler will generate this reloc at a PTA or PTB instruction,
1040      and the linker checks the right type of target, or changes a PTA to a
1041      PTB, if the original insn was PT.  */
1042   HOWTO (R_SH_PT_16,		/* type */
1043 	 2,			/* rightshift */
1044 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1045 	 18,			/* bitsize */
1046 	 TRUE,			/* pc_relative */
1047 	 10,			/* bitpos */
1048 	 complain_overflow_signed, /* complain_on_overflow */
1049 	 bfd_elf_generic_reloc,	/* special_function */
1050 	 "R_SH_PT_16",		/* name */
1051 	 FALSE,			/* partial_inplace */
1052 	 0,			/* src_mask */
1053 	 0x3fffc00,		/* dst_mask */
1054 	 TRUE),			/* pcrel_offset */
1055 
1056   /* Used in unexpanded MOVI.  */
1057   HOWTO (R_SH_IMMS16,		/* type */
1058 	 0,			/* rightshift */
1059 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1060 	 16,			/* bitsize */
1061 	 FALSE,			/* pc_relative */
1062 	 10,			/* bitpos */
1063 	 complain_overflow_signed, /* complain_on_overflow */
1064 	 bfd_elf_generic_reloc,	/* special_function */
1065 	 "R_SH_IMMS16",		/* name */
1066 	 FALSE,			/* partial_inplace */
1067 	 0,			/* src_mask */
1068 	 0x3fffc00,		/* dst_mask */
1069 	 FALSE),	       	/* pcrel_offset */
1070 
1071   /* Used in SHORI.  */
1072   HOWTO (R_SH_IMMU16,		/* type */
1073 	 0,			/* rightshift */
1074 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1075 	 16,			/* bitsize */
1076 	 FALSE,			/* pc_relative */
1077 	 10,			/* bitpos */
1078 	 complain_overflow_unsigned, /* complain_on_overflow */
1079 	 bfd_elf_generic_reloc,	/* special_function */
1080 	 "R_SH_IMMU16",		/* name */
1081 	 FALSE,			/* partial_inplace */
1082 	 0,			/* src_mask */
1083 	 0x3fffc00,		/* dst_mask */
1084 	 FALSE),	       	/* pcrel_offset */
1085 
1086   /* Used in MOVI and SHORI (x & 65536).  */
1087   HOWTO (R_SH_IMM_LOW16,	/* type */
1088 	 0,			/* rightshift */
1089 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1090 	 64,			/* bitsize */
1091 	 FALSE,			/* pc_relative */
1092 	 10,			/* bitpos */
1093 	 complain_overflow_dont, /* complain_on_overflow */
1094 	 bfd_elf_generic_reloc,	/* special_function */
1095 	 "R_SH_IMM_LOW16",    	/* name */
1096 	 FALSE,			/* partial_inplace */
1097 	 0,			/* src_mask */
1098 	 0x3fffc00,		/* dst_mask */
1099 	 FALSE),	       	/* pcrel_offset */
1100 
1101   /* Used in MOVI and SHORI ((x - $) & 65536).  */
1102   HOWTO (R_SH_IMM_LOW16_PCREL,	/* type */
1103 	 0,			/* rightshift */
1104 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1105 	 64,			/* bitsize */
1106 	 TRUE,			/* pc_relative */
1107 	 10,			/* bitpos */
1108 	 complain_overflow_dont, /* complain_on_overflow */
1109 	 bfd_elf_generic_reloc,	/* special_function */
1110 	 "R_SH_IMM_LOW16_PCREL", /* name */
1111 	 FALSE,			/* partial_inplace */
1112 	 0,			/* src_mask */
1113 	 0x3fffc00,		/* dst_mask */
1114 	 TRUE),			/* pcrel_offset */
1115 
1116   /* Used in MOVI and SHORI ((x >> 16) & 65536).  */
1117   HOWTO (R_SH_IMM_MEDLOW16,	/* type */
1118 	 16,			/* rightshift */
1119 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1120 	 64,			/* bitsize */
1121 	 FALSE,			/* pc_relative */
1122 	 10,			/* bitpos */
1123 	 complain_overflow_dont, /* complain_on_overflow */
1124 	 bfd_elf_generic_reloc,	/* special_function */
1125 	 "R_SH_IMM_MEDLOW16",	/* name */
1126 	 FALSE,			/* partial_inplace */
1127 	 0,			/* src_mask */
1128 	 0x3fffc00,		/* dst_mask */
1129 	 FALSE),	       	/* pcrel_offset */
1130 
1131   /* Used in MOVI and SHORI (((x - $) >> 16) & 65536).  */
1132   HOWTO (R_SH_IMM_MEDLOW16_PCREL, /* type */
1133 	 16,			/* rightshift */
1134 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1135 	 64,			/* bitsize */
1136 	 TRUE,			/* pc_relative */
1137 	 10,			/* bitpos */
1138 	 complain_overflow_dont, /* complain_on_overflow */
1139 	 bfd_elf_generic_reloc,	/* special_function */
1140 	 "R_SH_IMM_MEDLOW16_PCREL", /* name */
1141 	 FALSE,			/* partial_inplace */
1142 	 0,			/* src_mask */
1143 	 0x3fffc00,		/* dst_mask */
1144 	 TRUE),			/* pcrel_offset */
1145 
1146   /* Used in MOVI and SHORI ((x >> 32) & 65536).  */
1147   HOWTO (R_SH_IMM_MEDHI16,	/* type */
1148 	 32,			/* rightshift */
1149 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1150 	 64,			/* bitsize */
1151 	 FALSE,			/* pc_relative */
1152 	 10,			/* bitpos */
1153 	 complain_overflow_dont, /* complain_on_overflow */
1154 	 bfd_elf_generic_reloc,	/* special_function */
1155 	 "R_SH_IMM_MEDHI16",	/* name */
1156 	 FALSE,			/* partial_inplace */
1157 	 0,			/* src_mask */
1158 	 0x3fffc00,		/* dst_mask */
1159 	 FALSE),	       	/* pcrel_offset */
1160 
1161   /* Used in MOVI and SHORI (((x - $) >> 32) & 65536).  */
1162   HOWTO (R_SH_IMM_MEDHI16_PCREL, /* type */
1163 	 32,			/* rightshift */
1164 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1165 	 64,			/* bitsize */
1166 	 TRUE,			/* pc_relative */
1167 	 10,			/* bitpos */
1168 	 complain_overflow_dont, /* complain_on_overflow */
1169 	 bfd_elf_generic_reloc,	/* special_function */
1170 	 "R_SH_IMM_MEDHI16_PCREL", /* name */
1171 	 FALSE,			/* partial_inplace */
1172 	 0,			/* src_mask */
1173 	 0x3fffc00,		/* dst_mask */
1174 	 TRUE),			/* pcrel_offset */
1175 
1176   /* Used in MOVI and SHORI ((x >> 48) & 65536).  */
1177   HOWTO (R_SH_IMM_HI16,		/* type */
1178 	 48,			/* rightshift */
1179 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1180 	 64,			/* bitsize */
1181 	 FALSE,			/* pc_relative */
1182 	 10,			/* bitpos */
1183 	 complain_overflow_dont, /* complain_on_overflow */
1184 	 bfd_elf_generic_reloc,	/* special_function */
1185 	 "R_SH_IMM_HI16",	/* name */
1186 	 FALSE,			/* partial_inplace */
1187 	 0,			/* src_mask */
1188 	 0x3fffc00,		/* dst_mask */
1189 	 FALSE),	       	/* pcrel_offset */
1190 
1191   /* Used in MOVI and SHORI (((x - $) >> 48) & 65536).  */
1192   HOWTO (R_SH_IMM_HI16_PCREL,	/* type */
1193 	 48,			/* rightshift */
1194 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1195 	 64,			/* bitsize */
1196 	 TRUE,			/* pc_relative */
1197 	 10,			/* bitpos */
1198 	 complain_overflow_dont, /* complain_on_overflow */
1199 	 bfd_elf_generic_reloc,	/* special_function */
1200 	 "R_SH_IMM_HI16_PCREL", /* name */
1201 	 FALSE,			/* partial_inplace */
1202 	 0,			/* src_mask */
1203 	 0x3fffc00,		/* dst_mask */
1204 	 TRUE),			/* pcrel_offset */
1205 
1206   /* For the .uaquad pseudo.  */
1207   HOWTO (R_SH_64,		/* type */
1208 	 0,			/* rightshift */
1209 	 4,			/* size (0 = byte, 1 = short, 2 = long) */
1210 	 64,			/* bitsize */
1211 	 FALSE,			/* pc_relative */
1212 	 0,			/* bitpos */
1213 	 complain_overflow_dont, /* complain_on_overflow */
1214 	 bfd_elf_generic_reloc,	/* special_function */
1215 	 "R_SH_64", 		/* name */
1216 	 FALSE,			/* partial_inplace */
1217 	 0,			/* src_mask */
1218 	 ((bfd_vma) 0) - 1,	/* dst_mask */
1219 	 FALSE),	       	/* pcrel_offset */
1220 
1221   /* For the .uaquad pseudo, (x - $).  */
1222   HOWTO (R_SH_64_PCREL,		/* type */
1223 	 48,			/* rightshift */
1224 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1225 	 64,			/* bitsize */
1226 	 TRUE,			/* pc_relative */
1227 	 10,			/* bitpos */
1228 	 complain_overflow_dont, /* complain_on_overflow */
1229 	 bfd_elf_generic_reloc,	/* special_function */
1230 	 "R_SH_64_PCREL",	/* name */
1231 	 FALSE,			/* partial_inplace */
1232 	 0,			/* src_mask */
1233 	 ((bfd_vma) 0) - 1,	/* dst_mask */
1234 	 TRUE),			/* pcrel_offset */
1235 
1236 };
1237 
1238 /* This function is used for relocs which are only used for relaxing,
1239    which the linker should otherwise ignore.  */
1240 
1241 static bfd_reloc_status_type
sh_elf64_ignore_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc_entry,asymbol * symbol ATTRIBUTE_UNUSED,void * data ATTRIBUTE_UNUSED,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)1242 sh_elf64_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
1243 		       asymbol *symbol ATTRIBUTE_UNUSED,
1244 		       void *data ATTRIBUTE_UNUSED, asection *input_section,
1245 		       bfd *output_bfd,
1246 		       char **error_message ATTRIBUTE_UNUSED)
1247 {
1248   if (output_bfd != NULL)
1249     reloc_entry->address += input_section->output_offset;
1250   return bfd_reloc_ok;
1251 }
1252 
1253 /* This function is used for normal relocs.  This used to be like the COFF
1254    function, and is almost certainly incorrect for other ELF targets.
1255 
1256    See sh_elf_reloc in elf32-sh.c for the original.  */
1257 
1258 static bfd_reloc_status_type
sh_elf64_reloc(bfd * abfd,arelent * reloc_entry,asymbol * symbol_in,void * data,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)1259 sh_elf64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
1260 		void *data, asection *input_section, bfd *output_bfd,
1261 		char **error_message ATTRIBUTE_UNUSED)
1262 {
1263   unsigned long insn;
1264   bfd_vma sym_value;
1265   enum elf_sh_reloc_type r_type;
1266   bfd_vma addr = reloc_entry->address;
1267   bfd_byte *hit_data = addr + (bfd_byte *) data;
1268 
1269   r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
1270 
1271   if (output_bfd != NULL)
1272     {
1273       /* Partial linking--do nothing.  */
1274       reloc_entry->address += input_section->output_offset;
1275       return bfd_reloc_ok;
1276     }
1277 
1278   if (symbol_in != NULL
1279       && bfd_is_und_section (symbol_in->section))
1280     return bfd_reloc_undefined;
1281 
1282   if (bfd_is_com_section (symbol_in->section))
1283     sym_value = 0;
1284   else
1285     sym_value = (symbol_in->value +
1286 		 symbol_in->section->output_section->vma +
1287 		 symbol_in->section->output_offset);
1288 
1289   switch (r_type)
1290     {
1291     case R_SH_DIR32:
1292       insn = bfd_get_32 (abfd, hit_data);
1293       insn += sym_value + reloc_entry->addend;
1294       bfd_put_32 (abfd, insn, hit_data);
1295       break;
1296 
1297     default:
1298       abort ();
1299       break;
1300     }
1301 
1302   return bfd_reloc_ok;
1303 }
1304 
1305 /* This structure is used to map BFD reloc codes to SH ELF relocs.  */
1306 
1307 struct elf_reloc_map
1308 {
1309   bfd_reloc_code_real_type bfd_reloc_val;
1310   unsigned char elf_reloc_val;
1311 };
1312 
1313 /* An array mapping BFD reloc codes to SH ELF relocs.  */
1314 
1315 static const struct elf_reloc_map sh64_reloc_map[] =
1316 {
1317   { BFD_RELOC_NONE, R_SH_NONE },
1318   { BFD_RELOC_32, R_SH_DIR32 },
1319   { BFD_RELOC_CTOR, R_SH_DIR32 },
1320   { BFD_RELOC_32_PCREL, R_SH_REL32 },
1321   { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
1322   { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
1323   { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
1324   { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
1325   { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
1326   { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
1327   { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
1328   { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
1329   { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
1330   { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
1331   { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
1332   { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
1333   { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
1334   { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
1335   { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
1336   { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
1337   { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
1338   { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
1339   { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
1340   { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
1341   { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
1342   { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
1343   { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
1344   { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
1345   { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
1346   { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
1347   { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
1348   { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
1349   { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
1350   { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
1351   { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
1352   { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
1353   { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
1354   { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
1355   { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
1356   { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
1357   { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
1358   { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
1359   { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
1360   { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
1361   { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
1362   { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
1363   { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
1364   { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
1365   { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
1366   { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
1367   { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
1368   { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
1369   { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
1370   { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
1371   { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
1372   { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
1373   { BFD_RELOC_64, R_SH_64 },
1374   { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
1375 };
1376 
1377 /* Given a BFD reloc code, return the howto structure for the
1378    corresponding SH ELf reloc.  */
1379 
1380 static reloc_howto_type *
sh_elf64_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)1381 sh_elf64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1382 			    bfd_reloc_code_real_type code)
1383 {
1384   unsigned int i;
1385 
1386   for (i = 0; i < sizeof (sh64_reloc_map) / sizeof (struct elf_reloc_map); i++)
1387     {
1388       if (sh64_reloc_map[i].bfd_reloc_val == code)
1389 	return &sh_elf64_howto_table[(int) sh64_reloc_map[i].elf_reloc_val];
1390     }
1391 
1392   return NULL;
1393 }
1394 
1395 /* Given an ELF reloc, fill in the howto field of a relent.
1396 
1397    See sh_elf_info_to_howto in elf32-sh.c for the original.  */
1398 
1399 static void
sh_elf64_info_to_howto(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)1400 sh_elf64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
1401 			Elf_Internal_Rela *dst)
1402 {
1403   unsigned int r;
1404 
1405   r = ELF64_R_TYPE (dst->r_info);
1406 
1407   BFD_ASSERT (r <= (unsigned int) R_SH_64_PCREL);
1408   BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
1409   BFD_ASSERT (r < R_SH_DIR8WPN || r > R_SH_LAST_INVALID_RELOC_2);
1410   BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_GOTPLT32);
1411   BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
1412 
1413   cache_ptr->howto = &sh_elf64_howto_table[r];
1414 }
1415 
1416 /* Relocate an SH ELF section.
1417 
1418    See sh_elf_info_to_howto in elf32-sh.c for the original.  */
1419 
1420 static bfd_boolean
sh_elf64_relocate_section(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info,bfd * input_bfd,asection * input_section,bfd_byte * contents,Elf_Internal_Rela * relocs,Elf_Internal_Sym * local_syms,asection ** local_sections)1421 sh_elf64_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
1422 			   struct bfd_link_info *info, bfd *input_bfd,
1423 			   asection *input_section, bfd_byte *contents,
1424 			   Elf_Internal_Rela *relocs,
1425 			   Elf_Internal_Sym *local_syms,
1426 			   asection **local_sections)
1427 {
1428   Elf_Internal_Shdr *symtab_hdr;
1429   struct elf_link_hash_entry **sym_hashes;
1430   Elf_Internal_Rela *rel, *relend;
1431   bfd *dynobj;
1432   bfd_vma *local_got_offsets;
1433   asection *sgot;
1434   asection *sgotplt;
1435   asection *splt;
1436   asection *sreloc;
1437   bfd_vma disp, dropped;
1438 
1439   symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1440   sym_hashes = elf_sym_hashes (input_bfd);
1441   dynobj = elf_hash_table (info)->dynobj;
1442   local_got_offsets = elf_local_got_offsets (input_bfd);
1443 
1444   sgot = NULL;
1445   sgotplt = NULL;
1446   splt = NULL;
1447   sreloc = NULL;
1448 
1449   rel = relocs;
1450   relend = relocs + input_section->reloc_count;
1451   for (; rel < relend; rel++)
1452     {
1453       int r_type;
1454       reloc_howto_type *howto;
1455       unsigned long r_symndx;
1456       Elf_Internal_Sym *sym;
1457       asection *sec;
1458       struct elf_link_hash_entry *h;
1459       bfd_vma relocation;
1460       bfd_vma addend = (bfd_vma)0;
1461       bfd_reloc_status_type r;
1462       int seen_stt_datalabel = 0;
1463 
1464       r_symndx = ELF64_R_SYM (rel->r_info);
1465 
1466       r_type = ELF64_R_TYPE (rel->r_info);
1467 
1468       if (r_type == (int) R_SH_NONE)
1469 	continue;
1470 
1471       if (r_type < 0
1472 	  || r_type > R_SH_64_PCREL
1473 	  || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
1474 	      && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1475 	  || (r_type >= (int) R_SH_DIR8WPN
1476 	      && r_type <= (int) R_SH_LAST_INVALID_RELOC)
1477 	  || (r_type >= (int) R_SH_GNU_VTINHERIT
1478 	      && r_type <= (int) R_SH_PSHL)
1479 	  || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
1480 	      && r_type <= R_SH_GOTPLT32)
1481 	  || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
1482 	      && r_type <= (int) R_SH_LAST_INVALID_RELOC_4))
1483 	{
1484 	  bfd_set_error (bfd_error_bad_value);
1485 	  return FALSE;
1486 	}
1487 
1488       howto = sh_elf64_howto_table + r_type;
1489 
1490       /* This is a final link.  */
1491       h = NULL;
1492       sym = NULL;
1493       sec = NULL;
1494       if (r_symndx < symtab_hdr->sh_info)
1495 	{
1496 	  sym = local_syms + r_symndx;
1497 	  sec = local_sections[r_symndx];
1498 	  relocation = ((sec->output_section->vma
1499 			 + sec->output_offset
1500 			 + sym->st_value)
1501 			| ((sym->st_other & STO_SH5_ISA32) != 0));
1502 
1503 	  /* A local symbol never has STO_SH5_ISA32, so we don't need
1504 	     datalabel processing here.  Make sure this does not change
1505 	     without notice.  */
1506 	  if ((sym->st_other & STO_SH5_ISA32) != 0)
1507 	    ((*info->callbacks->reloc_dangerous)
1508 	     (info,
1509 	      _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
1510 	      input_bfd, input_section, rel->r_offset));
1511 
1512 	  if (info->relocatable)
1513 	    {
1514 	      /* This is a relocatable link.  We don't have to change
1515 		 anything, unless the reloc is against a section symbol,
1516 		 in which case we have to adjust according to where the
1517 		 section symbol winds up in the output section.  */
1518 	      sym = local_syms + r_symndx;
1519 	      if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1520 		goto final_link_relocate;
1521 
1522 	      continue;
1523 	    }
1524 	  else if (! howto->partial_inplace)
1525 	    {
1526 	      relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1527 	      relocation |= ((sym->st_other & STO_SH5_ISA32) != 0);
1528 	    }
1529 	  else if ((sec->flags & SEC_MERGE)
1530 		   && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
1531 	    {
1532 	      asection *msec;
1533 
1534 	      if (howto->rightshift || howto->src_mask != 0xffffffff)
1535 		{
1536 		  (*_bfd_error_handler)
1537 		    (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
1538 		     input_bfd, input_section,
1539 		     (long) rel->r_offset, howto->name);
1540 		  return FALSE;
1541 		}
1542 
1543               addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
1544               msec = sec;
1545               addend =
1546 		_bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
1547 		- relocation;
1548 	      addend += msec->output_section->vma + msec->output_offset;
1549 	      bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
1550 	      addend = 0;
1551 	    }
1552 	}
1553       else
1554 	{
1555 	  /* ??? Could we use the RELOC_FOR_GLOBAL_SYMBOL macro here ?  */
1556 
1557 	  /* Section symbols are never (?) placed in the hash table, so
1558 	     we can just ignore hash relocations when creating a
1559 	     relocatable object file.  */
1560 	  if (info->relocatable)
1561 	    continue;
1562 
1563 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1564 	  while (h->root.type == bfd_link_hash_indirect
1565 		 || h->root.type == bfd_link_hash_warning)
1566 	    {
1567 	      /* If the reference passes a symbol marked with
1568 		 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
1569 		 doesn't count.  */
1570 	      seen_stt_datalabel |= h->type == STT_DATALABEL;
1571 	      h = (struct elf_link_hash_entry *) h->root.u.i.link;
1572 	    }
1573 
1574 	  if (h->root.type == bfd_link_hash_defined
1575 	      || h->root.type == bfd_link_hash_defweak)
1576 	    {
1577 	      sec = h->root.u.def.section;
1578 	      /* In these cases, we don't need the relocation value.
1579 		 We check specially because in some obscure cases
1580 		 sec->output_section will be NULL.  */
1581 	      if (r_type == R_SH_GOTPC_LOW16
1582 		  || r_type == R_SH_GOTPC_MEDLOW16
1583 		  || r_type == R_SH_GOTPC_MEDHI16
1584 		  || r_type == R_SH_GOTPC_HI16
1585 		  || ((r_type == R_SH_PLT_LOW16
1586 		       || r_type == R_SH_PLT_MEDLOW16
1587 		       || r_type == R_SH_PLT_MEDHI16
1588 		       || r_type == R_SH_PLT_HI16)
1589 		      && h->plt.offset != (bfd_vma) -1)
1590 		  || ((r_type == R_SH_GOT_LOW16
1591 		       || r_type == R_SH_GOT_MEDLOW16
1592 		       || r_type == R_SH_GOT_MEDHI16
1593 		       || r_type == R_SH_GOT_HI16)
1594 		      && elf_hash_table (info)->dynamic_sections_created
1595 		      && (! info->shared
1596 			  || (! info->symbolic && h->dynindx != -1)
1597 			  || !h->def_regular))
1598 		  /* The cases above are those in which relocation is
1599 		     overwritten in the switch block below.  The cases
1600 		     below are those in which we must defer relocation
1601 		     to run-time, because we can't resolve absolute
1602 		     addresses when creating a shared library.  */
1603 		  || (info->shared
1604 		      && ((! info->symbolic && h->dynindx != -1)
1605 			  || !h->def_regular)
1606 		      && ((r_type == R_SH_64
1607 			   && !(ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1608 				|| ELF_ST_VISIBILITY (h->other) == STV_HIDDEN))
1609 			  || r_type == R_SH_64_PCREL)
1610 		      && ((input_section->flags & SEC_ALLOC) != 0
1611 			  /* DWARF will emit R_SH_DIR32 relocations in its
1612 			     sections against symbols defined externally
1613 			     in shared libraries.  We can't do anything
1614 			     with them here.  */
1615 			  || (input_section->flags & SEC_DEBUGGING) != 0))
1616 		  /* Dynamic relocs are not propagated for SEC_DEBUGGING
1617 		     sections because such sections are not SEC_ALLOC and
1618 		     thus ld.so will not process them.  */
1619 		  || (sec->output_section == NULL
1620 		      && ((input_section->flags & SEC_DEBUGGING) != 0
1621 			  && h->def_dynamic)))
1622 		relocation = 0;
1623 	      else if (sec->output_section == NULL)
1624 		{
1625 		  (*_bfd_error_handler)
1626 		    (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
1627 		     bfd_get_filename (input_bfd), h->root.root.string,
1628 		     bfd_get_section_name (input_bfd, input_section));
1629 		  relocation = 0;
1630 		}
1631 	      else
1632 		relocation = ((h->root.u.def.value
1633 			       + sec->output_section->vma
1634 			       + sec->output_offset)
1635 			      /* A STO_SH5_ISA32 causes a "bitor 1" to the
1636 				 symbol value, unless we've seen
1637 				 STT_DATALABEL on the way to it.  */
1638 			      | ((h->other & STO_SH5_ISA32) != 0
1639 				 && ! seen_stt_datalabel));
1640 	    }
1641 	  else if (h->root.type == bfd_link_hash_undefweak)
1642 	    relocation = 0;
1643 	  else if (info->unresolved_syms_in_objects == RM_IGNORE
1644 		   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
1645 	    relocation = 0;
1646 	  else
1647 	    {
1648 	      if (! ((*info->callbacks->undefined_symbol)
1649 		     (info, h->root.root.string, input_bfd,
1650 		      input_section, rel->r_offset,
1651 		      (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
1652 		       || ELF_ST_VISIBILITY (h->other)))))
1653 		return FALSE;
1654 	      relocation = 0;
1655 	    }
1656 	}
1657 
1658       disp = (relocation
1659 	      - input_section->output_section->vma
1660 	      - input_section->output_offset
1661 	      - rel->r_offset);
1662       dropped = 0;
1663       switch ((int)r_type)
1664 	{
1665 	case R_SH_PT_16:     dropped = disp & 2; break;
1666 	case R_SH_DIR10SW: dropped = disp & 1; break;
1667 	case R_SH_DIR10SL: dropped = disp & 3; break;
1668 	case R_SH_DIR10SQ: dropped = disp & 7; break;
1669 	}
1670       if (dropped != 0)
1671 	{
1672 	  (*_bfd_error_handler)
1673 	    (_("%s: error: unaligned relocation type %d at %08x reloc %08x\n"),
1674 	     bfd_get_filename (input_bfd), (int)r_type, (unsigned)rel->r_offset, (unsigned)relocation);
1675 	  bfd_set_error (bfd_error_bad_value);
1676 	  return FALSE;
1677 	}
1678       switch ((int)r_type)
1679 	{
1680 	case R_SH_64:
1681 	case R_SH_64_PCREL:
1682 	  if (info->shared
1683 	      && (input_section->flags & SEC_ALLOC) != 0
1684 	      && (r_type != R_SH_64_PCREL
1685 		  || (h != NULL
1686 		      && h->dynindx != -1
1687 		      && (! info->symbolic
1688 			  || !h->def_regular))))
1689 	    {
1690 	      Elf_Internal_Rela outrel;
1691 	      bfd_byte *loc;
1692 	      bfd_boolean skip, relocate;
1693 
1694 	      /* When generating a shared object, these relocations
1695 		 are copied into the output file to be resolved at run
1696 		 time.  */
1697 
1698 	      if (sreloc == NULL)
1699 		{
1700 		  const char *name;
1701 
1702 		  name = (bfd_elf_string_from_elf_section
1703 			  (input_bfd,
1704 			   elf_elfheader (input_bfd)->e_shstrndx,
1705 			   elf_section_data (input_section)->rel_hdr.sh_name));
1706 		  if (name == NULL)
1707 		    return FALSE;
1708 
1709 		  BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1710 			      && strcmp (bfd_get_section_name (input_bfd,
1711 							       input_section),
1712 					 name + 5) == 0);
1713 
1714 		  sreloc = bfd_get_section_by_name (dynobj, name);
1715 		  BFD_ASSERT (sreloc != NULL);
1716 		}
1717 
1718 	      skip = FALSE;
1719 	      relocate = FALSE;
1720 
1721 	      outrel.r_offset
1722 		= _bfd_elf_section_offset (output_bfd, info,
1723 					   input_section, rel->r_offset);
1724 
1725 	      if (outrel.r_offset == (bfd_vma) -1)
1726 		skip = TRUE;
1727 	      else if (outrel.r_offset == (bfd_vma) -2)
1728 		skip = TRUE, relocate = TRUE;
1729 
1730 	      outrel.r_offset += (input_section->output_section->vma
1731 				  + input_section->output_offset);
1732 
1733 	      if (skip)
1734 		memset (&outrel, 0, sizeof outrel);
1735 	      else if (r_type == R_SH_64_PCREL)
1736 		{
1737 		  BFD_ASSERT (h != NULL && h->dynindx != -1);
1738 		  outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64_PCREL);
1739 		  outrel.r_addend = rel->r_addend;
1740 		}
1741 	      else
1742 		{
1743 		  /* h->dynindx may be -1 if this symbol was marked to
1744 		     become local.  */
1745 		  if (h == NULL
1746 		      || ((info->symbolic || h->dynindx == -1)
1747 			  && h->def_regular))
1748 		    {
1749 		      relocate = TRUE;
1750 		      outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1751 		      outrel.r_addend = relocation + rel->r_addend;
1752 		    }
1753 		  else
1754 		    {
1755 		      BFD_ASSERT (h->dynindx != -1);
1756 		      outrel.r_info = ELF64_R_INFO (h->dynindx, R_SH_64);
1757 		      outrel.r_addend = relocation + rel->r_addend;
1758 		    }
1759 		}
1760 
1761 	      loc = sreloc->contents;
1762 	      loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
1763 	      bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1764 
1765 	      /* If this reloc is against an external symbol, we do
1766 		 not want to fiddle with the addend.  Otherwise, we
1767 		 need to include the symbol value so that it becomes
1768 		 an addend for the dynamic reloc.  */
1769 	      if (! relocate)
1770 		continue;
1771 	    }
1772 	  else if (r_type == R_SH_64)
1773 	    addend = rel->r_addend;
1774 	  goto final_link_relocate;
1775 
1776 	case R_SH_GOTPLT_LOW16:
1777 	case R_SH_GOTPLT_MEDLOW16:
1778 	case R_SH_GOTPLT_MEDHI16:
1779 	case R_SH_GOTPLT_HI16:
1780 	case R_SH_GOTPLT10BY4:
1781 	case R_SH_GOTPLT10BY8:
1782 	  /* Relocation is to the entry for this symbol in the
1783 	     procedure linkage table.  */
1784 
1785 	  if (h == NULL
1786 	      || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1787 	      || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
1788 	      || ! info->shared
1789 	      || info->symbolic
1790 	      || h->dynindx == -1
1791 	      || h->plt.offset == (bfd_vma) -1
1792 	      || h->got.offset != (bfd_vma) -1)
1793 	    goto force_got;
1794 
1795 	  /* Relocation is to the entry for this symbol in the global
1796 	     offset table extension for the procedure linkage table.  */
1797 	  if (sgotplt == NULL)
1798 	    {
1799 	      sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1800 	      BFD_ASSERT (sgotplt != NULL);
1801 	    }
1802 
1803 	  relocation = (sgotplt->output_offset
1804 			+ ((h->plt.offset / elf_sh64_sizeof_plt (info)
1805 			    - 1 + 3) * 8));
1806 
1807 	  relocation -= GOT_BIAS;
1808 
1809 	  goto final_link_relocate;
1810 
1811 	force_got:
1812 	case R_SH_GOT_LOW16:
1813 	case R_SH_GOT_MEDLOW16:
1814 	case R_SH_GOT_MEDHI16:
1815 	case R_SH_GOT_HI16:
1816 	case R_SH_GOT10BY4:
1817 	case R_SH_GOT10BY8:
1818 	  /* Relocation is to the entry for this symbol in the global
1819 	     offset table.  */
1820 	  if (sgot == NULL)
1821 	    {
1822 	      sgot = bfd_get_section_by_name (dynobj, ".got");
1823 	      BFD_ASSERT (sgot != NULL);
1824 	    }
1825 
1826 	  if (h != NULL)
1827 	    {
1828 	      bfd_vma off;
1829 
1830 	      off = h->got.offset;
1831 	      if (seen_stt_datalabel)
1832 		{
1833 		  struct elf_sh64_link_hash_entry *hsh;
1834 
1835 		  hsh = (struct elf_sh64_link_hash_entry *)h;
1836 		  off = hsh->datalabel_got_offset;
1837 		}
1838 	      BFD_ASSERT (off != (bfd_vma) -1);
1839 
1840 	      if (! elf_hash_table (info)->dynamic_sections_created
1841 		  || (info->shared
1842 		      && (info->symbolic || h->dynindx == -1
1843 			  || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
1844 			  || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
1845 		      && h->def_regular))
1846 		{
1847 		  /* This is actually a static link, or it is a
1848 		     -Bsymbolic link and the symbol is defined
1849 		     locally, or the symbol was forced to be local
1850 		     because of a version file.  We must initialize
1851 		     this entry in the global offset table.  Since the
1852 		     offset must always be a multiple of 4, we use the
1853 		     least significant bit to record whether we have
1854 		     initialized it already.
1855 
1856 		     When doing a dynamic link, we create a .rela.got
1857 		     relocation entry to initialize the value.  This
1858 		     is done in the finish_dynamic_symbol routine.  */
1859 		  if ((off & 1) != 0)
1860 		    off &= ~1;
1861 		  else
1862 		    {
1863 		      bfd_put_64 (output_bfd, relocation,
1864 				  sgot->contents + off);
1865 		      if (seen_stt_datalabel)
1866 			{
1867 			  struct elf_sh64_link_hash_entry *hsh;
1868 
1869 			  hsh = (struct elf_sh64_link_hash_entry *)h;
1870 			  hsh->datalabel_got_offset |= 1;
1871 			}
1872 		      else
1873 			h->got.offset |= 1;
1874 		    }
1875 		}
1876 
1877 	      relocation = sgot->output_offset + off;
1878 	    }
1879 	  else
1880 	    {
1881 	      bfd_vma off;
1882 
1883 	      if (rel->r_addend)
1884 		{
1885 		  BFD_ASSERT (local_got_offsets != NULL
1886 			      && (local_got_offsets[symtab_hdr->sh_info
1887 						    + r_symndx]
1888 				  != (bfd_vma) -1));
1889 
1890 		  off = local_got_offsets[symtab_hdr->sh_info
1891 					  + r_symndx];
1892 		}
1893 	      else
1894 		{
1895 		  BFD_ASSERT (local_got_offsets != NULL
1896 			      && local_got_offsets[r_symndx] != (bfd_vma) -1);
1897 
1898 		  off = local_got_offsets[r_symndx];
1899 		}
1900 
1901 	      /* The offset must always be a multiple of 8.  We use
1902 		 the least significant bit to record whether we have
1903 		 already generated the necessary reloc.  */
1904 	      if ((off & 1) != 0)
1905 		off &= ~1;
1906 	      else
1907 		{
1908 		  bfd_put_64 (output_bfd, relocation, sgot->contents + off);
1909 
1910 		  if (info->shared)
1911 		    {
1912 		      asection *s;
1913 		      Elf_Internal_Rela outrel;
1914 		      bfd_byte *loc;
1915 
1916 		      s = bfd_get_section_by_name (dynobj, ".rela.got");
1917 		      BFD_ASSERT (s != NULL);
1918 
1919 		      outrel.r_offset = (sgot->output_section->vma
1920 					 + sgot->output_offset
1921 					 + off);
1922 		      outrel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
1923 		      outrel.r_addend = relocation;
1924 		      loc = s->contents;
1925 		      loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
1926 		      bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
1927 		    }
1928 
1929 		  if (rel->r_addend)
1930 		    local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
1931 		  else
1932 		    local_got_offsets[r_symndx] |= 1;
1933 		}
1934 
1935 	      relocation = sgot->output_offset + off;
1936 	    }
1937 
1938  	  relocation -= GOT_BIAS;
1939 
1940 	  goto final_link_relocate;
1941 
1942 	case R_SH_GOTOFF_LOW16:
1943 	case R_SH_GOTOFF_MEDLOW16:
1944 	case R_SH_GOTOFF_MEDHI16:
1945 	case R_SH_GOTOFF_HI16:
1946 	  /* Relocation is relative to the start of the global offset
1947 	     table.  */
1948 
1949 	  if (sgot == NULL)
1950 	    {
1951 	      sgot = bfd_get_section_by_name (dynobj, ".got");
1952 	      BFD_ASSERT (sgot != NULL);
1953 	    }
1954 
1955 	  /* Note that sgot->output_offset is not involved in this
1956 	     calculation.  We always want the start of .got.  If we
1957 	     defined _GLOBAL_OFFSET_TABLE in a different way, as is
1958 	     permitted by the ABI, we might have to change this
1959 	     calculation.  */
1960 	  relocation -= sgot->output_section->vma;
1961 
1962 	  relocation -= GOT_BIAS;
1963 
1964 	  addend = rel->r_addend;
1965 
1966 	  goto final_link_relocate;
1967 
1968 	case R_SH_GOTPC_LOW16:
1969 	case R_SH_GOTPC_MEDLOW16:
1970 	case R_SH_GOTPC_MEDHI16:
1971 	case R_SH_GOTPC_HI16:
1972 	  /* Use global offset table as symbol value.  */
1973 
1974 	  if (sgot == NULL)
1975 	    {
1976 	      sgot = bfd_get_section_by_name (dynobj, ".got");
1977 	      BFD_ASSERT (sgot != NULL);
1978 	    }
1979 
1980 	  relocation = sgot->output_section->vma;
1981 
1982 	  relocation += GOT_BIAS;
1983 
1984 	  addend = rel->r_addend;
1985 
1986 	  goto final_link_relocate;
1987 
1988 	case R_SH_PLT_LOW16:
1989 	case R_SH_PLT_MEDLOW16:
1990 	case R_SH_PLT_MEDHI16:
1991 	case R_SH_PLT_HI16:
1992 	  /* Relocation is to the entry for this symbol in the
1993 	     procedure linkage table.  */
1994 
1995 	  /* Resolve a PLT reloc against a local symbol directly,
1996 	     without using the procedure linkage table.  */
1997 	  if (h == NULL)
1998 	    goto final_link_relocate;
1999 
2000 	  if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2001 	      || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2002 	    goto final_link_relocate;
2003 
2004 	  if (h->plt.offset == (bfd_vma) -1)
2005 	    {
2006 	      /* We didn't make a PLT entry for this symbol.  This
2007 		 happens when statically linking PIC code, or when
2008 		 using -Bsymbolic.  */
2009 	      goto final_link_relocate;
2010 	    }
2011 
2012 	  if (splt == NULL)
2013 	    {
2014 	      splt = bfd_get_section_by_name (dynobj, ".plt");
2015 	      BFD_ASSERT (splt != NULL);
2016 	    }
2017 
2018 	  relocation = (splt->output_section->vma
2019 			+ splt->output_offset
2020 			+ h->plt.offset);
2021 	  relocation++;
2022 
2023 	  addend = rel->r_addend;
2024 
2025 	  goto final_link_relocate;
2026 
2027 	case R_SH_DIR32:
2028 	case R_SH_SHMEDIA_CODE:
2029 	case R_SH_PT_16:
2030 	case R_SH_DIR5U:
2031 	case R_SH_DIR6S:
2032 	case R_SH_DIR6U:
2033 	case R_SH_DIR10S:
2034 	case R_SH_DIR10SW:
2035 	case R_SH_DIR10SL:
2036 	case R_SH_DIR10SQ:
2037 	case R_SH_IMMS16:
2038 	case R_SH_IMMU16:
2039 	case R_SH_IMM_LOW16:
2040 	case R_SH_IMM_LOW16_PCREL:
2041 	case R_SH_IMM_MEDLOW16:
2042 	case R_SH_IMM_MEDLOW16_PCREL:
2043 	case R_SH_IMM_MEDHI16:
2044 	case R_SH_IMM_MEDHI16_PCREL:
2045 	case R_SH_IMM_HI16:
2046 	case R_SH_IMM_HI16_PCREL:
2047 	  addend = rel->r_addend;
2048 	  /* Fall through.  */
2049 	case R_SH_REL32:
2050 	final_link_relocate:
2051 	  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2052 					contents, rel->r_offset,
2053 					relocation, addend);
2054 	  break;
2055 
2056 	default:
2057 	  bfd_set_error (bfd_error_bad_value);
2058 	  return FALSE;
2059 
2060 	}
2061 
2062       if (r != bfd_reloc_ok)
2063 	{
2064 	  switch (r)
2065 	    {
2066 	    default:
2067 	    case bfd_reloc_outofrange:
2068 	      abort ();
2069 	    case bfd_reloc_overflow:
2070 	      {
2071 		const char *name;
2072 
2073 		if (h != NULL)
2074 		  name = NULL;
2075 		else
2076 		  {
2077 		    name = (bfd_elf_string_from_elf_section
2078 			    (input_bfd, symtab_hdr->sh_link, sym->st_name));
2079 		    if (name == NULL)
2080 		      return FALSE;
2081 		    if (*name == '\0')
2082 		      name = bfd_section_name (input_bfd, sec);
2083 		  }
2084 		if (! ((*info->callbacks->reloc_overflow)
2085 		       (info, (h ? &h->root : NULL), name, howto->name,
2086 			(bfd_vma) 0, input_bfd, input_section,
2087 			rel->r_offset)))
2088 		  return FALSE;
2089 	      }
2090 	      break;
2091 	    }
2092 	}
2093     }
2094 
2095   return TRUE;
2096 }
2097 
2098 /* This is a version of bfd_generic_get_relocated_section_contents
2099    that uses sh_elf64_relocate_section.
2100 
2101    See sh_elf_relocate_section in elf32-sh.c for the original.  */
2102 
2103 static bfd_byte *
sh_elf64_get_relocated_section_contents(bfd * output_bfd,struct bfd_link_info * link_info,struct bfd_link_order * link_order,bfd_byte * data,bfd_boolean relocatable,asymbol ** symbols)2104 sh_elf64_get_relocated_section_contents (bfd *output_bfd,
2105 					 struct bfd_link_info *link_info,
2106 					 struct bfd_link_order *link_order,
2107 					 bfd_byte *data,
2108 					 bfd_boolean relocatable,
2109 					 asymbol **symbols)
2110 {
2111   Elf_Internal_Shdr *symtab_hdr;
2112   asection *input_section = link_order->u.indirect.section;
2113   bfd *input_bfd = input_section->owner;
2114   asection **sections = NULL;
2115   Elf_Internal_Rela *internal_relocs = NULL;
2116   Elf_Internal_Sym *isymbuf = NULL;
2117 
2118   /* We only need to handle the case of relaxing, or of having a
2119      particular set of section contents, specially.  */
2120   if (relocatable
2121       || elf_section_data (input_section)->this_hdr.contents == NULL)
2122     return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
2123 						       link_order, data,
2124 						       relocatable,
2125 						       symbols);
2126 
2127   symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2128 
2129   memcpy (data, elf_section_data (input_section)->this_hdr.contents,
2130 	  input_section->size);
2131 
2132   if ((input_section->flags & SEC_RELOC) != 0
2133       && input_section->reloc_count > 0)
2134     {
2135       Elf_Internal_Sym *isymp;
2136       Elf_Internal_Sym *isymend;
2137       asection **secpp;
2138 
2139       /* Read this BFD's local symbols.  */
2140       if (symtab_hdr->sh_info != 0)
2141 	{
2142 	  isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
2143 	  if (isymbuf == NULL)
2144 	    isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2145 					    symtab_hdr->sh_info, 0,
2146 					    NULL, NULL, NULL);
2147 	  if (isymbuf == NULL)
2148 	    goto error_return;
2149 	}
2150 
2151       internal_relocs = (_bfd_elf_link_read_relocs
2152 			 (input_bfd, input_section, NULL,
2153 			  (Elf_Internal_Rela *) NULL, FALSE));
2154       if (internal_relocs == NULL)
2155 	goto error_return;
2156 
2157       sections = (asection **) bfd_malloc (symtab_hdr->sh_info
2158 					   * sizeof (asection *));
2159       if (sections == NULL && symtab_hdr->sh_info > 0)
2160 	goto error_return;
2161 
2162       secpp = sections;
2163       isymend = isymbuf + symtab_hdr->sh_info;
2164       for (isymp = isymbuf; isymp < isymend; ++isymp, ++secpp)
2165 	{
2166 	  asection *isec;
2167 
2168 	  if (isymp->st_shndx == SHN_UNDEF)
2169 	    isec = bfd_und_section_ptr;
2170 	  else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
2171 	    isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
2172 	  else if (isymp->st_shndx == SHN_ABS)
2173 	    isec = bfd_abs_section_ptr;
2174 	  else if (isymp->st_shndx == SHN_COMMON)
2175 	    isec = bfd_com_section_ptr;
2176 	  else
2177 	    {
2178 	      /* Who knows?  */
2179 	      isec = NULL;
2180 	    }
2181 
2182 	  *secpp = isec;
2183 	}
2184 
2185       if (! sh_elf64_relocate_section (output_bfd, link_info, input_bfd,
2186 				       input_section, data, internal_relocs,
2187 				       isymbuf, sections))
2188 	goto error_return;
2189 
2190       if (sections != NULL)
2191 	free (sections);
2192       if (internal_relocs != elf_section_data (input_section)->relocs)
2193 	free (internal_relocs);
2194       if (isymbuf != NULL
2195 	  && (unsigned char *) isymbuf != symtab_hdr->contents)
2196 	free (isymbuf);
2197     }
2198 
2199   return data;
2200 
2201  error_return:
2202   if (sections != NULL)
2203     free (sections);
2204   if (internal_relocs != NULL
2205       && internal_relocs != elf_section_data (input_section)->relocs)
2206     free (internal_relocs);
2207   if (isymbuf != NULL
2208       && (unsigned char *) isymbuf != symtab_hdr->contents)
2209     free (isymbuf);
2210   return NULL;
2211 }
2212 
2213 /* Set the SHF_SH5_ISA32 flag for ISA SHmedia code sections.  */
2214 
2215 static bfd_boolean
sh64_elf64_fake_sections(bfd * output_bfd ATTRIBUTE_UNUSED,Elf_Internal_Shdr * elf_section_hdr,asection * asect)2216 sh64_elf64_fake_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2217 			  Elf_Internal_Shdr *elf_section_hdr,
2218 			  asection *asect)
2219 {
2220   /* Code sections can only contain SH64 code, so mark them as such.  */
2221   if (bfd_get_section_flags (output_bfd, asect) & SEC_CODE)
2222     elf_section_hdr->sh_flags |= SHF_SH5_ISA32;
2223 
2224   return TRUE;
2225 }
2226 
2227 static bfd_boolean
sh_elf64_set_mach_from_flags(bfd * abfd)2228 sh_elf64_set_mach_from_flags (bfd *abfd)
2229 {
2230   flagword flags = elf_elfheader (abfd)->e_flags;
2231 
2232   switch (flags & EF_SH_MACH_MASK)
2233     {
2234     case EF_SH5:
2235       /* Just one, but keep the switch construct to make additions easy.  */
2236       bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh5);
2237       break;
2238 
2239     default:
2240       bfd_set_error (bfd_error_wrong_format);
2241       return FALSE;
2242     }
2243   return TRUE;
2244 }
2245 
2246 /* Function to keep SH64 specific file flags.
2247 
2248    See sh64_elf_set_private_flags in elf32-sh64.c for the original.  */
2249 
2250 static bfd_boolean
sh_elf64_set_private_flags(bfd * abfd,flagword flags)2251 sh_elf64_set_private_flags (bfd *abfd, flagword flags)
2252 {
2253   BFD_ASSERT (! elf_flags_init (abfd)
2254 	      || elf_elfheader (abfd)->e_flags == flags);
2255 
2256   elf_elfheader (abfd)->e_flags = flags;
2257   elf_flags_init (abfd) = TRUE;
2258   return sh_elf64_set_mach_from_flags (abfd);
2259 }
2260 
2261 /* Copy the SHF_SH5_ISA32 attribute that we keep on all sections with
2262    code, to keep attributes the same as for SHmedia in 32-bit ELF.  */
2263 
2264 static bfd_boolean
sh_elf64_copy_private_data_internal(bfd * ibfd,bfd * obfd)2265 sh_elf64_copy_private_data_internal (bfd *ibfd, bfd *obfd)
2266 {
2267   Elf_Internal_Shdr **o_shdrp;
2268   asection *isec;
2269   asection *osec;
2270 
2271   if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2272       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2273     return TRUE;
2274 
2275   o_shdrp = elf_elfsections (obfd);
2276   for (osec = obfd->sections; osec; osec = osec->next)
2277     {
2278       int oIndex = ((struct bfd_elf_section_data *) elf_section_data (osec))->this_idx;
2279       for (isec = ibfd->sections; isec; isec = isec->next)
2280 	{
2281 	  if (strcmp (osec->name, isec->name) == 0)
2282 	    {
2283 	      /* Note that we're not disallowing mixing data and code.  */
2284 	      if ((elf_section_data (isec)->this_hdr.sh_flags
2285 		   & SHF_SH5_ISA32) != 0)
2286 		o_shdrp[oIndex]->sh_flags |= SHF_SH5_ISA32;
2287 	      break;
2288 	    }
2289 	}
2290     }
2291 
2292   return sh_elf64_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
2293 }
2294 
2295 static bfd_boolean
sh_elf64_copy_private_data(bfd * ibfd,bfd * obfd)2296 sh_elf64_copy_private_data (bfd *ibfd, bfd *obfd)
2297 {
2298   return sh_elf64_copy_private_data_internal (ibfd, obfd);
2299 }
2300 
2301 static bfd_boolean
sh_elf64_merge_private_data(bfd * ibfd,bfd * obfd)2302 sh_elf64_merge_private_data (bfd *ibfd, bfd *obfd)
2303 {
2304   flagword old_flags, new_flags;
2305 
2306   if (! _bfd_generic_verify_endian_match (ibfd, obfd))
2307     return FALSE;
2308 
2309   if (   bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2310       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2311     return TRUE;
2312 
2313   if (bfd_get_arch_size (ibfd) != bfd_get_arch_size (obfd))
2314     {
2315       const char *msg;
2316 
2317       if (bfd_get_arch_size (ibfd) == 32
2318 	  && bfd_get_arch_size (obfd) == 64)
2319 	msg = _("%s: compiled as 32-bit object and %s is 64-bit");
2320       else if (bfd_get_arch_size (ibfd) == 64
2321 	       && bfd_get_arch_size (obfd) == 32)
2322 	msg = _("%s: compiled as 64-bit object and %s is 32-bit");
2323       else
2324 	msg = _("%s: object size does not match that of target %s");
2325 
2326       (*_bfd_error_handler) (msg, bfd_get_filename (ibfd),
2327 			     bfd_get_filename (obfd));
2328       bfd_set_error (bfd_error_wrong_format);
2329       return FALSE;
2330     }
2331 
2332   old_flags = elf_elfheader (obfd)->e_flags;
2333   new_flags = elf_elfheader (ibfd)->e_flags;
2334   if (! elf_flags_init (obfd))
2335     {
2336       /* This happens when ld starts out with a 'blank' output file.  */
2337       elf_flags_init (obfd) = TRUE;
2338       elf_elfheader (obfd)->e_flags = old_flags = new_flags;
2339     }
2340   /* We don't allow linking in anything else than SH64 code, and since
2341      this is a 64-bit ELF, we assume the 64-bit ABI is used.  Add code
2342      here as things change.  */
2343   else if ((new_flags & EF_SH_MACH_MASK) != EF_SH5)
2344     {
2345       (*_bfd_error_handler)
2346 	("%s: does not use the SH64 64-bit ABI as previous modules do",
2347 	 bfd_get_filename (ibfd));
2348       bfd_set_error (bfd_error_bad_value);
2349       return FALSE;
2350     }
2351 
2352   sh_elf64_copy_private_data_internal (ibfd, obfd);
2353 
2354   /* I can't think of anything sane other than old_flags being EF_SH5 and
2355      that we need to preserve that.  */
2356   elf_elfheader (obfd)->e_flags = old_flags;
2357 
2358   return sh_elf64_set_mach_from_flags (obfd);
2359 }
2360 
2361 /* Return the section that should be marked against GC for a given
2362    relocation.  */
2363 
2364 static asection *
sh_elf64_gc_mark_hook(asection * sec,struct bfd_link_info * info ATTRIBUTE_UNUSED,Elf_Internal_Rela * rel,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)2365 sh_elf64_gc_mark_hook (asection *sec,
2366 		       struct bfd_link_info *info ATTRIBUTE_UNUSED,
2367 		       Elf_Internal_Rela *rel,
2368 		       struct elf_link_hash_entry *h,
2369 		       Elf_Internal_Sym *sym)
2370 {
2371   if (h != NULL)
2372     {
2373       switch (ELF64_R_TYPE (rel->r_info))
2374 	{
2375 	case R_SH_GNU_VTINHERIT:
2376 	case R_SH_GNU_VTENTRY:
2377 	  break;
2378 
2379 	default:
2380 	  while (h->root.type == bfd_link_hash_indirect
2381 		 && h->root.u.i.link)
2382 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
2383 	  switch (h->root.type)
2384 	    {
2385 	    case bfd_link_hash_defined:
2386 	    case bfd_link_hash_defweak:
2387 	      return h->root.u.def.section;
2388 
2389 	    case bfd_link_hash_common:
2390 	      return h->root.u.c.p->section;
2391 
2392 	    default:
2393 	      break;
2394 	    }
2395 	}
2396     }
2397   else
2398     return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
2399 
2400   return NULL;
2401 }
2402 
2403 /* Update the got entry reference counts for the section being removed.  */
2404 
2405 static bfd_boolean
sh_elf64_gc_sweep_hook(bfd * abfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED,asection * sec ATTRIBUTE_UNUSED,const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED)2406 sh_elf64_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
2407 			struct bfd_link_info *info ATTRIBUTE_UNUSED,
2408 			asection *sec ATTRIBUTE_UNUSED,
2409 			const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
2410 {
2411   /* No got and plt entries for 64-bit SH at present.  */
2412   return TRUE;
2413 }
2414 
2415 /* Look through the relocs for a section during the first phase.
2416    Since we don't do .gots or .plts, we just need to consider the
2417    virtual table relocs for gc.  */
2418 
2419 static bfd_boolean
sh_elf64_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)2420 sh_elf64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2421 		       asection *sec, const Elf_Internal_Rela *relocs)
2422 {
2423   Elf_Internal_Shdr *symtab_hdr;
2424   struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
2425   const Elf_Internal_Rela *rel;
2426   const Elf_Internal_Rela *rel_end;
2427   bfd *dynobj;
2428   bfd_vma *local_got_offsets;
2429   asection *sgot;
2430   asection *srelgot;
2431   asection *sreloc;
2432 
2433   sgot = NULL;
2434   srelgot = NULL;
2435   sreloc = NULL;
2436 
2437   if (info->relocatable)
2438     return TRUE;
2439 
2440   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2441   sym_hashes = elf_sym_hashes (abfd);
2442   sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf64_External_Sym);
2443   if (!elf_bad_symtab (abfd))
2444     sym_hashes_end -= symtab_hdr->sh_info;
2445 
2446   dynobj = elf_hash_table (info)->dynobj;
2447   local_got_offsets = elf_local_got_offsets (abfd);
2448 
2449   rel_end = relocs + sec->reloc_count;
2450   for (rel = relocs; rel < rel_end; rel++)
2451     {
2452       struct elf_link_hash_entry *h;
2453       unsigned long r_symndx;
2454 
2455       r_symndx = ELF64_R_SYM (rel->r_info);
2456       if (r_symndx < symtab_hdr->sh_info)
2457         h = NULL;
2458       else
2459 	{
2460 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2461 	  while (h->root.type == bfd_link_hash_indirect
2462 		 || h->root.type == bfd_link_hash_warning)
2463 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
2464 	}
2465 
2466       /* Some relocs require a global offset table.  */
2467       if (dynobj == NULL)
2468 	{
2469 	  switch (ELF64_R_TYPE (rel->r_info))
2470 	    {
2471 	    case R_SH_GOTPLT_LOW16:
2472 	    case R_SH_GOTPLT_MEDLOW16:
2473 	    case R_SH_GOTPLT_MEDHI16:
2474 	    case R_SH_GOTPLT_HI16:
2475 	    case R_SH_GOTPLT10BY4:
2476 	    case R_SH_GOTPLT10BY8:
2477 	    case R_SH_GOT_LOW16:
2478 	    case R_SH_GOT_MEDLOW16:
2479 	    case R_SH_GOT_MEDHI16:
2480 	    case R_SH_GOT_HI16:
2481 	    case R_SH_GOT10BY4:
2482 	    case R_SH_GOT10BY8:
2483 	    case R_SH_GOTOFF_LOW16:
2484 	    case R_SH_GOTOFF_MEDLOW16:
2485 	    case R_SH_GOTOFF_MEDHI16:
2486 	    case R_SH_GOTOFF_HI16:
2487 	    case R_SH_GOTPC_LOW16:
2488 	    case R_SH_GOTPC_MEDLOW16:
2489 	    case R_SH_GOTPC_MEDHI16:
2490 	    case R_SH_GOTPC_HI16:
2491 	      elf_hash_table (info)->dynobj = dynobj = abfd;
2492 	      if (! _bfd_elf_create_got_section (dynobj, info))
2493 		return FALSE;
2494 	      break;
2495 
2496 	    default:
2497 	      break;
2498 	    }
2499 	}
2500 
2501       switch (ELF64_R_TYPE (rel->r_info))
2502         {
2503 	  /* This relocation describes the C++ object vtable hierarchy.
2504 	     Reconstruct it for later use during GC.  */
2505         case R_SH_GNU_VTINHERIT:
2506           if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2507             return FALSE;
2508           break;
2509 
2510 	  /* This relocation describes which C++ vtable entries are actually
2511 	     used.  Record for later use during GC.  */
2512         case R_SH_GNU_VTENTRY:
2513           if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2514             return FALSE;
2515           break;
2516 
2517 	force_got:
2518 	case R_SH_GOT_LOW16:
2519 	case R_SH_GOT_MEDLOW16:
2520 	case R_SH_GOT_MEDHI16:
2521 	case R_SH_GOT_HI16:
2522 	case R_SH_GOT10BY4:
2523 	case R_SH_GOT10BY8:
2524 	  /* This symbol requires a global offset table entry.  */
2525 
2526 	  if (sgot == NULL)
2527 	    {
2528 	      sgot = bfd_get_section_by_name (dynobj, ".got");
2529 	      BFD_ASSERT (sgot != NULL);
2530 	    }
2531 
2532 	  if (srelgot == NULL
2533 	      && (h != NULL || info->shared))
2534 	    {
2535 	      srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2536 	      if (srelgot == NULL)
2537 		{
2538 		  srelgot = bfd_make_section_with_flags (dynobj,
2539 							 ".rela.got",
2540 							 (SEC_ALLOC
2541 							  | SEC_LOAD
2542 							  | SEC_HAS_CONTENTS
2543 							  | SEC_IN_MEMORY
2544 							  | SEC_LINKER_CREATED
2545 							  | SEC_READONLY));
2546 		  if (srelgot == NULL
2547 		      || ! bfd_set_section_alignment (dynobj, srelgot, 2))
2548 		    return FALSE;
2549 		}
2550 	    }
2551 
2552 	  if (h != NULL)
2553 	    {
2554 	      if (h->type == STT_DATALABEL)
2555 		{
2556 		  struct elf_sh64_link_hash_entry *hsh;
2557 
2558 		  h = (struct elf_link_hash_entry *) h->root.u.i.link;
2559 		  hsh = (struct elf_sh64_link_hash_entry *)h;
2560 		  if (hsh->datalabel_got_offset != (bfd_vma) -1)
2561 		    break;
2562 
2563 		  hsh->datalabel_got_offset = sgot->size;
2564 		}
2565 	      else
2566 		{
2567 		  if (h->got.offset != (bfd_vma) -1)
2568 		    {
2569 		      /* We have already allocated space in the .got.  */
2570 		      break;
2571 		    }
2572 		  h->got.offset = sgot->size;
2573 		}
2574 
2575 	      /* Make sure this symbol is output as a dynamic symbol.  */
2576 	      if (h->dynindx == -1)
2577 		{
2578 		  if (! bfd_elf_link_record_dynamic_symbol (info, h))
2579 		    return FALSE;
2580 		}
2581 
2582 	      srelgot->size += sizeof (Elf64_External_Rela);
2583 	    }
2584 	  else
2585 	    {
2586      	      /* This is a global offset table entry for a local
2587 		 symbol.  */
2588 	      if (local_got_offsets == NULL)
2589 		{
2590 		  size_t size;
2591 		  register unsigned int i;
2592 
2593 		  size = symtab_hdr->sh_info * sizeof (bfd_vma);
2594 		  /* Reserve space for both the datalabel and
2595 		     codelabel local GOT offsets.  */
2596 		  size *= 2;
2597 		  local_got_offsets = (bfd_vma *) bfd_alloc (abfd, size);
2598 		  if (local_got_offsets == NULL)
2599 		    return FALSE;
2600 		  elf_local_got_offsets (abfd) = local_got_offsets;
2601 		  for (i = 0; i < symtab_hdr->sh_info; i++)
2602 		    local_got_offsets[i] = (bfd_vma) -1;
2603 		  for (; i < 2 * symtab_hdr->sh_info; i++)
2604 		    local_got_offsets[i] = (bfd_vma) -1;
2605 		}
2606 	      if ((rel->r_addend & 1) != 0)
2607 		{
2608 		  if (local_got_offsets[symtab_hdr->sh_info
2609 					+ r_symndx] != (bfd_vma) -1)
2610 		    {
2611 		      /* We have already allocated space in the .got.  */
2612 		      break;
2613 		    }
2614 		  local_got_offsets[symtab_hdr->sh_info
2615 				    + r_symndx] = sgot->size;
2616 		}
2617 	      else
2618 		{
2619 		  if (local_got_offsets[r_symndx] != (bfd_vma) -1)
2620 		    {
2621 		      /* We have already allocated space in the .got.  */
2622 		      break;
2623 		    }
2624 		  local_got_offsets[r_symndx] = sgot->size;
2625 		}
2626 
2627 	      if (info->shared)
2628 		{
2629 		  /* If we are generating a shared object, we need to
2630 		     output a R_SH_RELATIVE reloc so that the dynamic
2631 		     linker can adjust this GOT entry.  */
2632 		  srelgot->size += sizeof (Elf64_External_Rela);
2633 		}
2634 	    }
2635 
2636 	  sgot->size += 8;
2637 
2638 	  break;
2639 
2640 	case R_SH_GOTPLT_LOW16:
2641 	case R_SH_GOTPLT_MEDLOW16:
2642 	case R_SH_GOTPLT_MEDHI16:
2643 	case R_SH_GOTPLT_HI16:
2644 	case R_SH_GOTPLT10BY4:
2645 	case R_SH_GOTPLT10BY8:
2646 	  /* If this is a local symbol, we resolve it directly without
2647 	     creating a procedure linkage table entry.  */
2648 
2649 	  if (h == NULL
2650 	      || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2651 	      || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN
2652 	      || ! info->shared
2653 	      || info->symbolic
2654 	      || h->dynindx == -1
2655 	      || h->got.offset != (bfd_vma) -1)
2656 	    goto force_got;
2657 
2658 	  /* Make sure this symbol is output as a dynamic symbol.  */
2659 	  if (h->dynindx == -1)
2660 	    {
2661 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
2662 		return FALSE;
2663 	    }
2664 
2665 	  h->needs_plt = 1;
2666 
2667 	  break;
2668 
2669 	case R_SH_PLT_LOW16:
2670 	case R_SH_PLT_MEDLOW16:
2671 	case R_SH_PLT_MEDHI16:
2672 	case R_SH_PLT_HI16:
2673 	  /* This symbol requires a procedure linkage table entry.  We
2674 	     actually build the entry in adjust_dynamic_symbol,
2675 	     because this might be a case of linking PIC code which is
2676 	     never referenced by a dynamic object, in which case we
2677 	     don't need to generate a procedure linkage table entry
2678 	     after all.  */
2679 
2680 	  /* If this is a local symbol, we resolve it directly without
2681 	     creating a procedure linkage table entry.  */
2682 	  if (h == NULL)
2683 	    continue;
2684 
2685 	  if (ELF_ST_VISIBILITY (h->other) == STV_INTERNAL
2686 	      || ELF_ST_VISIBILITY (h->other) == STV_HIDDEN)
2687 	    break;
2688 
2689 	  h->needs_plt = 1;
2690 
2691 	  break;
2692 
2693 	case R_SH_64:
2694 	case R_SH_64_PCREL:
2695 	  if (h != NULL)
2696 	    h->non_got_ref = 1;
2697 
2698 	  /* If we are creating a shared library, and this is a reloc
2699 	     against a global symbol, or a non PC relative reloc
2700 	     against a local symbol, then we need to copy the reloc
2701 	     into the shared library.  However, if we are linking with
2702 	     -Bsymbolic, we do not need to copy a reloc against a
2703 	     global symbol which is defined in an object we are
2704 	     including in the link (i.e., DEF_REGULAR is set).  At
2705 	     this point we have not seen all the input files, so it is
2706 	     possible that DEF_REGULAR is not set now but will be set
2707 	     later (it is never cleared).  We account for that
2708 	     possibility below by storing information in the
2709 	     pcrel_relocs_copied field of the hash table entry.  */
2710 	  if (info->shared
2711 	      && (sec->flags & SEC_ALLOC) != 0
2712 	      && (ELF32_R_TYPE (rel->r_info) != R_SH_64_PCREL
2713 		  || (h != NULL
2714 		      && (! info->symbolic
2715 			  || !h->def_regular))))
2716 	    {
2717 	      /* When creating a shared object, we must copy these
2718 		 reloc types into the output file.  We create a reloc
2719 		 section in dynobj and make room for this reloc.  */
2720 	      if (sreloc == NULL)
2721 		{
2722 		  const char *name;
2723 
2724 		  name = (bfd_elf_string_from_elf_section
2725 			  (abfd,
2726 			   elf_elfheader (abfd)->e_shstrndx,
2727 			   elf_section_data (sec)->rel_hdr.sh_name));
2728 		  if (name == NULL)
2729 		    return FALSE;
2730 
2731 		  BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2732 			      && strcmp (bfd_get_section_name (abfd, sec),
2733 					 name + 5) == 0);
2734 
2735 		  sreloc = bfd_get_section_by_name (dynobj, name);
2736 		  if (sreloc == NULL)
2737 		    {
2738 		      flagword flags;
2739 
2740 		      flags = (SEC_HAS_CONTENTS | SEC_READONLY
2741 			       | SEC_IN_MEMORY | SEC_LINKER_CREATED);
2742 		      if ((sec->flags & SEC_ALLOC) != 0)
2743 			flags |= SEC_ALLOC | SEC_LOAD;
2744 		      sreloc = bfd_make_section_with_flags (dynobj,
2745 							    name,
2746 							    flags);
2747 		      if (sreloc == NULL
2748 			  || ! bfd_set_section_alignment (dynobj, sreloc, 2))
2749 			return FALSE;
2750 		    }
2751 		}
2752 
2753 	      sreloc->size += sizeof (Elf64_External_Rela);
2754 
2755 	      /* If we are linking with -Bsymbolic, and this is a
2756 		 global symbol, we count the number of PC relative
2757 		 relocations we have entered for this symbol, so that
2758 		 we can discard them again if the symbol is later
2759 		 defined by a regular object.  Note that this function
2760 		 is only called if we are using an elf_sh linker
2761 		 hash table, which means that h is really a pointer to
2762 		 an elf_sh_link_hash_entry.  */
2763 	      if (h != NULL && info->symbolic
2764 		  && ELF64_R_TYPE (rel->r_info) == R_SH_64_PCREL)
2765 		{
2766 		  struct elf_sh64_link_hash_entry *eh;
2767 		  struct elf_sh64_pcrel_relocs_copied *p;
2768 
2769 		  eh = (struct elf_sh64_link_hash_entry *) h;
2770 
2771 		  for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2772 		    if (p->section == sreloc)
2773 		      break;
2774 
2775 		  if (p == NULL)
2776 		    {
2777 		      p = ((struct elf_sh64_pcrel_relocs_copied *)
2778 			   bfd_alloc (dynobj, sizeof *p));
2779 		      if (p == NULL)
2780 			return FALSE;
2781 		      p->next = eh->pcrel_relocs_copied;
2782 		      eh->pcrel_relocs_copied = p;
2783 		      p->section = sreloc;
2784 		      p->count = 0;
2785 		    }
2786 
2787 		  ++p->count;
2788 		}
2789 	    }
2790 
2791 	  break;
2792         }
2793     }
2794 
2795   return TRUE;
2796 }
2797 
2798 static int
sh64_elf64_get_symbol_type(Elf_Internal_Sym * elf_sym,int type)2799 sh64_elf64_get_symbol_type (Elf_Internal_Sym * elf_sym, int type)
2800 {
2801   if (ELF_ST_TYPE (elf_sym->st_info) == STT_DATALABEL)
2802     return STT_DATALABEL;
2803 
2804   return type;
2805 }
2806 
2807 /* FIXME: This is a copy of sh64_elf_add_symbol_hook in elf32-sh64.c.
2808    Either file can presumably exist without the other, but do not differ
2809    in elf-size-ness.  How to share?
2810 
2811    Hook called by the linker routine which adds symbols from an object
2812    file.  We must make indirect symbols for undefined symbols marked with
2813    STT_DATALABEL, so relocations passing them will pick up that attribute
2814    and neutralize STO_SH5_ISA32 found on the symbol definition.
2815 
2816    There is a problem, though: We want to fill in the hash-table entry for
2817    this symbol and signal to the caller that no further processing is
2818    needed.  But we don't have the index for this hash-table entry.  We
2819    rely here on that the current entry is the first hash-entry with NULL,
2820    which seems brittle.  Also, iterating over the hash-table to find that
2821    entry is a linear operation on the number of symbols in this input
2822    file, and this function should take constant time, so that's not good
2823    too.  Only comfort is that DataLabel references should only be found in
2824    hand-written assembly code and thus be rare.  FIXME: Talk maintainers
2825    into adding an option to elf_add_symbol_hook (preferably) for the index
2826    or the hash entry, alternatively adding the index to Elf_Internal_Sym
2827    (not so good).  */
2828 
2829 static bfd_boolean
sh64_elf64_add_symbol_hook(bfd * abfd,struct bfd_link_info * info,Elf_Internal_Sym * sym,const char ** namep,flagword * flagsp ATTRIBUTE_UNUSED,asection ** secp,bfd_vma * valp)2830 sh64_elf64_add_symbol_hook (bfd *abfd, struct bfd_link_info *info,
2831 			    Elf_Internal_Sym *sym, const char **namep,
2832 			    flagword *flagsp ATTRIBUTE_UNUSED,
2833 			    asection **secp, bfd_vma *valp)
2834 {
2835   /* We want to do this for relocatable as well as final linking.  */
2836   if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL
2837       && is_elf_hash_table (info->hash))
2838     {
2839       struct elf_link_hash_entry *h;
2840 
2841       /* For relocatable links, we register the DataLabel sym in its own
2842 	 right, and tweak the name when it's output.  Otherwise, we make
2843 	 an indirect symbol of it.  */
2844       flagword flags
2845 	= info->relocatable || info->emitrelocations
2846 	? BSF_GLOBAL : BSF_GLOBAL | BSF_INDIRECT;
2847 
2848       char *dl_name
2849 	= bfd_malloc (strlen (*namep) + sizeof (DATALABEL_SUFFIX));
2850       struct elf_link_hash_entry ** sym_hash = elf_sym_hashes (abfd);
2851 
2852       BFD_ASSERT (sym_hash != NULL);
2853 
2854       /* Allocation may fail.  */
2855       if (dl_name == NULL)
2856 	return FALSE;
2857 
2858       strcpy (dl_name, *namep);
2859       strcat (dl_name, DATALABEL_SUFFIX);
2860 
2861       h = (struct elf_link_hash_entry *)
2862 	bfd_link_hash_lookup (info->hash, dl_name, FALSE, FALSE, FALSE);
2863 
2864       if (h == NULL)
2865 	{
2866 	  /* No previous datalabel symbol.  Make one.  */
2867 	  struct bfd_link_hash_entry *bh = NULL;
2868 	  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2869 
2870 	  if (! _bfd_generic_link_add_one_symbol (info, abfd, dl_name,
2871 						  flags, *secp, *valp,
2872 						  *namep, FALSE,
2873 						  bed->collect, &bh))
2874 	    {
2875 	      free (dl_name);
2876 	      return FALSE;
2877 	    }
2878 
2879 	  h = (struct elf_link_hash_entry *) bh;
2880 	  h->non_elf = 0;
2881 	  h->type = STT_DATALABEL;
2882 	}
2883       else
2884 	/* If a new symbol was created, it holds the allocated name.
2885 	   Otherwise, we don't need it anymore and should deallocate it.  */
2886 	free (dl_name);
2887 
2888       if (h->type != STT_DATALABEL
2889 	  || ((info->relocatable || info->emitrelocations)
2890 	      && h->root.type != bfd_link_hash_undefined)
2891 	  || (! info->relocatable && !info->emitrelocations
2892 	      && h->root.type != bfd_link_hash_indirect))
2893 	{
2894 	  /* Make sure we don't get confused on invalid input.  */
2895 	  (*_bfd_error_handler)
2896 	    (_("%s: encountered datalabel symbol in input"),
2897 	     bfd_get_filename (abfd));
2898 	  bfd_set_error (bfd_error_bad_value);
2899 	  return FALSE;
2900 	}
2901 
2902       /* Now find the hash-table slot for this entry and fill it in.  */
2903       while (*sym_hash != NULL)
2904 	sym_hash++;
2905       *sym_hash = h;
2906 
2907       /* Signal to caller to skip this symbol - we've handled it.  */
2908       *namep = NULL;
2909     }
2910 
2911   return TRUE;
2912 }
2913 
2914 /* This hook function is called before the linker writes out a global
2915    symbol.  For relocatable links, DataLabel symbols will be present in
2916    linker output.  We cut off the special suffix on those symbols, so the
2917    right name appears in the output.
2918 
2919    When linking and emitting relocations, there can appear global symbols
2920    that are not referenced by relocs, but rather only implicitly through
2921    DataLabel references, a relation that is not visible to the linker.
2922    Since no stripping of global symbols in done when doing such linking,
2923    we don't need to look up and make sure to emit the main symbol for each
2924    DataLabel symbol.  */
2925 
2926 static bfd_boolean
sh64_elf64_link_output_symbol_hook(struct bfd_link_info * info,const char * cname,Elf_Internal_Sym * sym,asection * input_sec ATTRIBUTE_UNUSED,struct elf_link_hash_entry * h ATTRIBUTE_UNUSED)2927 sh64_elf64_link_output_symbol_hook (struct bfd_link_info *info,
2928 				    const char *cname,
2929 				    Elf_Internal_Sym *sym,
2930 				    asection *input_sec ATTRIBUTE_UNUSED,
2931 				    struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
2932 {
2933   char *name = (char *) cname;
2934 
2935   if (info->relocatable || info->emitrelocations)
2936     {
2937       if (ELF_ST_TYPE (sym->st_info) == STT_DATALABEL)
2938 	name[strlen (name) - strlen (DATALABEL_SUFFIX)] = 0;
2939     }
2940 
2941   return TRUE;
2942 }
2943 
2944 /* Set bit 0 on the entry address; it always points to SHmedia code.  This
2945    is mostly for symmetry with the 32-bit format, where code can be
2946    SHcompact and we need to make a distinction to make sure execution
2947    starts in the right ISA mode.  It is also convenient for a loader,
2948    which would otherwise have to set this bit when loading a TR register
2949    before jumping to the program entry.  */
2950 
2951 static void
sh64_elf64_final_write_processing(bfd * abfd,bfd_boolean linker ATTRIBUTE_UNUSED)2952 sh64_elf64_final_write_processing (bfd *abfd,
2953 				   bfd_boolean linker ATTRIBUTE_UNUSED)
2954 {
2955   /* FIXME: Perhaps we shouldn't do this if the entry address was supplied
2956      numerically, but we currently lack the infrastructure to recognize
2957      that: The entry symbol, and info whether it is numeric or a symbol
2958      name is kept private in the linker.  */
2959   if (elf_elfheader (abfd)->e_type == ET_EXEC)
2960     elf_elfheader (abfd)->e_entry |= 1;
2961 }
2962 
2963 /* First entry in an absolute procedure linkage table look like this.  */
2964 
2965 static const bfd_byte elf_sh64_plt0_entry_be[PLT_ENTRY_SIZE] =
2966 {
2967   0xcc, 0x00, 0x01, 0x10, /* movi  .got.plt >> 48, r17 */
2968   0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 32) & 65535, r17 */
2969   0xc8, 0x00, 0x01, 0x10, /* shori (.got.plt >> 16) & 65535, r17 */
2970   0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
2971   0x8d, 0x10, 0x09, 0x90, /* ld.q  r17, 16, r25 */
2972   0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
2973   0x8d, 0x10, 0x05, 0x10, /* ld.q  r17, 8, r17 */
2974   0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
2975   0x6f, 0xf0, 0xff, 0xf0, /* nop */
2976   0x6f, 0xf0, 0xff, 0xf0, /* nop */
2977   0x6f, 0xf0, 0xff, 0xf0, /* nop */
2978   0x6f, 0xf0, 0xff, 0xf0, /* nop */
2979   0x6f, 0xf0, 0xff, 0xf0, /* nop */
2980   0x6f, 0xf0, 0xff, 0xf0, /* nop */
2981   0x6f, 0xf0, 0xff, 0xf0, /* nop */
2982   0x6f, 0xf0, 0xff, 0xf0, /* nop */
2983 };
2984 
2985 static const bfd_byte elf_sh64_plt0_entry_le[PLT_ENTRY_SIZE] =
2986 {
2987   0x10, 0x01, 0x00, 0xcc, /* movi  .got.plt >> 16, r17 */
2988   0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 32) & 65535, r17 */
2989   0x10, 0x01, 0x00, 0xc8, /* shori (.got.plt >> 16) & 65535, r17 */
2990   0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
2991   0x90, 0x09, 0x10, 0x8d, /* ld.q  r17, 16, r25 */
2992   0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
2993   0x10, 0x05, 0x10, 0x8d, /* ld.q  r17, 8, r17 */
2994   0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
2995   0xf0, 0xff, 0xf0, 0x6f, /* nop */
2996   0xf0, 0xff, 0xf0, 0x6f, /* nop */
2997   0xf0, 0xff, 0xf0, 0x6f, /* nop */
2998   0xf0, 0xff, 0xf0, 0x6f, /* nop */
2999   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3000   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3001   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3002   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3003 };
3004 
3005 /* Sebsequent entries in an absolute procedure linkage table look like
3006    this.  */
3007 
3008 static const bfd_byte elf_sh64_plt_entry_be[PLT_ENTRY_SIZE] =
3009 {
3010   0xcc, 0x00, 0x01, 0x90, /* movi  nameN-in-GOT >> 48, r25 */
3011   0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 32) & 65535, r25 */
3012   0xc8, 0x00, 0x01, 0x90, /* shori (nameN-in-GOT >> 16) & 65535, r25 */
3013   0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
3014   0x8d, 0x90, 0x01, 0x90, /* ld.q  r25, 0, r25 */
3015   0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3016   0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3017   0x6f, 0xf0, 0xff, 0xf0, /* nop */
3018   0xcc, 0x00, 0x01, 0x90, /* movi  (.+8-.PLT0) >> 16, r25 */
3019   0xc8, 0x00, 0x01, 0x90, /* shori (.+4-.PLT0) & 65535, r25 */
3020   0x6b, 0xf5, 0x66, 0x00, /* ptrel r25, tr0 */
3021   0xcc, 0x00, 0x01, 0x50, /* movi  reloc-offset >> 16, r21 */
3022   0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3023   0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3024   0x6f, 0xf0, 0xff, 0xf0, /* nop */
3025   0x6f, 0xf0, 0xff, 0xf0, /* nop */
3026 };
3027 
3028 static const bfd_byte elf_sh64_plt_entry_le[PLT_ENTRY_SIZE] =
3029 {
3030   0x90, 0x01, 0x00, 0xcc, /* movi  nameN-in-GOT >> 16, r25 */
3031   0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3032   0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3033   0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
3034   0x90, 0x01, 0x90, 0x8d, /* ld.q  r25, 0, r25 */
3035   0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3036   0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3037   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3038   0x90, 0x01, 0x00, 0xcc, /* movi  (.+8-.PLT0) >> 16, r25 */
3039   0x90, 0x01, 0x00, 0xc8, /* shori (.+4-.PLT0) & 65535, r25 */
3040   0x00, 0x66, 0xf5, 0x6b, /* ptrel r25, tr0 */
3041   0x50, 0x01, 0x00, 0xcc, /* movi  reloc-offset >> 16, r21 */
3042   0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3043   0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3044   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3045   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3046 };
3047 
3048 /* Entries in a PIC procedure linkage table look like this.  */
3049 
3050 static const bfd_byte elf_sh64_pic_plt_entry_be[PLT_ENTRY_SIZE] =
3051 {
3052   0xcc, 0x00, 0x01, 0x90, /* movi  nameN@GOT >> 16, r25 */
3053   0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
3054   0x40, 0xc3, 0x65, 0x90, /* ldx.q r12, r25, r25 */
3055   0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3056   0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3057   0x6f, 0xf0, 0xff, 0xf0, /* nop */
3058   0x6f, 0xf0, 0xff, 0xf0, /* nop */
3059   0x6f, 0xf0, 0xff, 0xf0, /* nop */
3060   0xce, 0x00, 0x01, 0x10, /* movi  -GOT_BIAS, r17 */
3061   0x00, 0xc9, 0x45, 0x10, /* add   r12, r17, r17 */
3062   0x8d, 0x10, 0x09, 0x90, /* ld.q  r17, 16, r25 */
3063   0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
3064   0x8d, 0x10, 0x05, 0x10, /* ld.q  r17, 8, r17 */
3065   0xcc, 0x00, 0x01, 0x50, /* movi  reloc-offset >> 16, r21 */
3066   0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
3067   0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
3068 };
3069 
3070 static const bfd_byte elf_sh64_pic_plt_entry_le[PLT_ENTRY_SIZE] =
3071 {
3072   0x90, 0x01, 0x00, 0xcc, /* movi  nameN@GOT >> 16, r25 */
3073   0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
3074   0x90, 0x65, 0xc3, 0x40, /* ldx.q r12, r25, r25 */
3075   0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3076   0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3077   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3078   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3079   0xf0, 0xff, 0xf0, 0x6f, /* nop */
3080   0x10, 0x01, 0x00, 0xce, /* movi  -GOT_BIAS, r17 */
3081   0x10, 0x45, 0xc9, 0x00, /* add   r12, r17, r17 */
3082   0x90, 0x09, 0x10, 0x8d, /* ld.q  r17, 16, r25 */
3083   0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
3084   0x10, 0x05, 0x10, 0x8d, /* ld.q  r17, 8, r17 */
3085   0x50, 0x01, 0x00, 0xcc, /* movi  reloc-offset >> 16, r21 */
3086   0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
3087   0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
3088 };
3089 
3090 static const bfd_byte *elf_sh64_plt0_entry;
3091 static const bfd_byte *elf_sh64_plt_entry;
3092 static const bfd_byte *elf_sh64_pic_plt_entry;
3093 
3094 /* Create an entry in an sh ELF linker hash table.  */
3095 
3096 static struct bfd_hash_entry *
sh64_elf64_link_hash_newfunc(struct bfd_hash_entry * entry,struct bfd_hash_table * table,const char * string)3097 sh64_elf64_link_hash_newfunc (struct bfd_hash_entry *entry,
3098 			      struct bfd_hash_table *table,
3099 			      const char *string)
3100 {
3101   struct elf_sh64_link_hash_entry *ret =
3102     (struct elf_sh64_link_hash_entry *) entry;
3103 
3104   /* Allocate the structure if it has not already been allocated by a
3105      subclass.  */
3106   if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3107     ret = ((struct elf_sh64_link_hash_entry *)
3108 	   bfd_hash_allocate (table,
3109 			      sizeof (struct elf_sh64_link_hash_entry)));
3110   if (ret == (struct elf_sh64_link_hash_entry *) NULL)
3111     return (struct bfd_hash_entry *) ret;
3112 
3113   /* Call the allocation method of the superclass.  */
3114   ret = ((struct elf_sh64_link_hash_entry *)
3115 	 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
3116 				     table, string));
3117   if (ret != (struct elf_sh64_link_hash_entry *) NULL)
3118     {
3119       ret->pcrel_relocs_copied = NULL;
3120       ret->datalabel_got_offset = (bfd_vma) -1;
3121     }
3122 
3123   return (struct bfd_hash_entry *) ret;
3124 }
3125 
3126 /* Create an sh64 ELF linker hash table.  */
3127 
3128 static struct bfd_link_hash_table *
sh64_elf64_link_hash_table_create(bfd * abfd)3129 sh64_elf64_link_hash_table_create (bfd *abfd)
3130 {
3131   struct elf_sh64_link_hash_table *ret;
3132 
3133   ret = ((struct elf_sh64_link_hash_table *)
3134 	 bfd_malloc (sizeof (struct elf_sh64_link_hash_table)));
3135   if (ret == (struct elf_sh64_link_hash_table *) NULL)
3136     return NULL;
3137 
3138   if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
3139 				       sh64_elf64_link_hash_newfunc))
3140     {
3141       free (ret);
3142       return NULL;
3143     }
3144 
3145   return &ret->root.root;
3146 }
3147 
3148 inline static void
movi_shori_putval(bfd * output_bfd,unsigned long value,bfd_byte * addr)3149 movi_shori_putval (bfd *output_bfd, unsigned long value, bfd_byte *addr)
3150 {
3151   bfd_put_32 (output_bfd,
3152 	      bfd_get_32 (output_bfd, addr)
3153 	      | ((value >> 6) & 0x3fffc00),
3154 	      addr);
3155   bfd_put_32 (output_bfd,
3156 	      bfd_get_32 (output_bfd, addr + 4)
3157 	      | ((value << 10) & 0x3fffc00),
3158 	      addr + 4);
3159 }
3160 
3161 inline static void
movi_3shori_putval(bfd * output_bfd,bfd_vma value,bfd_byte * addr)3162 movi_3shori_putval (bfd *output_bfd, bfd_vma value, bfd_byte *addr)
3163 {
3164   bfd_put_32 (output_bfd,
3165 	      bfd_get_32 (output_bfd, addr)
3166 	      | ((value >> 38) & 0x3fffc00),
3167 	      addr);
3168   bfd_put_32 (output_bfd,
3169 	      bfd_get_32 (output_bfd, addr + 4)
3170 	      | ((value >> 22) & 0x3fffc00),
3171 	      addr + 4);
3172   bfd_put_32 (output_bfd,
3173 	      bfd_get_32 (output_bfd, addr + 8)
3174 	      | ((value >> 6) & 0x3fffc00),
3175 	      addr + 8);
3176   bfd_put_32 (output_bfd,
3177 	      bfd_get_32 (output_bfd, addr + 12)
3178 	      | ((value << 10) & 0x3fffc00),
3179 	      addr + 12);
3180 }
3181 
3182 /* Create dynamic sections when linking against a dynamic object.  */
3183 
3184 static bfd_boolean
sh64_elf64_create_dynamic_sections(bfd * abfd,struct bfd_link_info * info)3185 sh64_elf64_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
3186 {
3187   flagword flags, pltflags;
3188   register asection *s;
3189   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
3190   int ptralign = 0;
3191 
3192   switch (bed->s->arch_size)
3193     {
3194     case 32:
3195       ptralign = 2;
3196       break;
3197 
3198     case 64:
3199       ptralign = 3;
3200       break;
3201 
3202     default:
3203       bfd_set_error (bfd_error_bad_value);
3204       return FALSE;
3205     }
3206 
3207   /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3208      .rel[a].bss sections.  */
3209 
3210   flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3211 	   | SEC_LINKER_CREATED);
3212 
3213   pltflags = flags;
3214   pltflags |= SEC_CODE;
3215   if (bed->plt_not_loaded)
3216     pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
3217   if (bed->plt_readonly)
3218     pltflags |= SEC_READONLY;
3219 
3220   s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
3221   if (s == NULL
3222       || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
3223     return FALSE;
3224 
3225   if (bed->want_plt_sym)
3226     {
3227       /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3228 	 .plt section.  */
3229       struct elf_link_hash_entry *h;
3230       struct bfd_link_hash_entry *bh = NULL;
3231 
3232       if (! (_bfd_generic_link_add_one_symbol
3233 	     (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
3234 	      (bfd_vma) 0, (const char *) NULL, FALSE, bed->collect, &bh)))
3235 	return FALSE;
3236 
3237       h = (struct elf_link_hash_entry *) bh;
3238       h->def_regular = 1;
3239       h->type = STT_OBJECT;
3240 
3241       if (info->shared
3242 	  && ! bfd_elf_link_record_dynamic_symbol (info, h))
3243 	return FALSE;
3244     }
3245 
3246   s = bfd_make_section_with_flags (abfd,
3247 				   bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
3248 				   flags | SEC_READONLY);
3249   if (s == NULL
3250       || ! bfd_set_section_alignment (abfd, s, ptralign))
3251     return FALSE;
3252 
3253   if (! _bfd_elf_create_got_section (abfd, info))
3254     return FALSE;
3255 
3256   {
3257     const char *secname;
3258     char *relname;
3259     flagword secflags;
3260     asection *sec;
3261 
3262     for (sec = abfd->sections; sec; sec = sec->next)
3263       {
3264 	secflags = bfd_get_section_flags (abfd, sec);
3265 	if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
3266 	    || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
3267 	  continue;
3268 	secname = bfd_get_section_name (abfd, sec);
3269 	relname = (char *) bfd_malloc (strlen (secname) + 6);
3270 	strcpy (relname, ".rela");
3271 	strcat (relname, secname);
3272 	s = bfd_make_section_with_flags (abfd, relname,
3273 					 flags | SEC_READONLY);
3274 	if (s == NULL
3275 	    || ! bfd_set_section_alignment (abfd, s, ptralign))
3276 	  return FALSE;
3277       }
3278   }
3279 
3280   if (bed->want_dynbss)
3281     {
3282       /* The .dynbss section is a place to put symbols which are defined
3283 	 by dynamic objects, are referenced by regular objects, and are
3284 	 not functions.  We must allocate space for them in the process
3285 	 image and use a R_*_COPY reloc to tell the dynamic linker to
3286 	 initialize them at run time.  The linker script puts the .dynbss
3287 	 section into the .bss section of the final image.  */
3288       s = bfd_make_section_with_flags (abfd, ".dynbss",
3289 				       SEC_ALLOC | SEC_LINKER_CREATED);
3290       if (s == NULL)
3291 	return FALSE;
3292 
3293       /* The .rel[a].bss section holds copy relocs.  This section is not
3294 	 normally needed.  We need to create it here, though, so that the
3295 	 linker will map it to an output section.  We can't just create it
3296 	 only if we need it, because we will not know whether we need it
3297 	 until we have seen all the input files, and the first time the
3298 	 main linker code calls BFD after examining all the input files
3299 	 (size_dynamic_sections) the input sections have already been
3300 	 mapped to the output sections.  If the section turns out not to
3301 	 be needed, we can discard it later.  We will never need this
3302 	 section when generating a shared object, since they do not use
3303 	 copy relocs.  */
3304       if (! info->shared)
3305 	{
3306 	  s = bfd_make_section_with_flags (abfd,
3307 					   (bed->default_use_rela_p
3308 					    ? ".rela.bss" : ".rel.bss"),
3309 					   flags | SEC_READONLY);
3310 	  if (s == NULL
3311 	      || ! bfd_set_section_alignment (abfd, s, ptralign))
3312 	    return FALSE;
3313 	}
3314     }
3315 
3316   return TRUE;
3317 }
3318 
3319 /* Adjust a symbol defined by a dynamic object and referenced by a
3320    regular object.  The current definition is in some section of the
3321    dynamic object, but we're not including those sections.  We have to
3322    change the definition to something the rest of the link can
3323    understand.  */
3324 
3325 static bfd_boolean
sh64_elf64_adjust_dynamic_symbol(struct bfd_link_info * info,struct elf_link_hash_entry * h)3326 sh64_elf64_adjust_dynamic_symbol (struct bfd_link_info *info,
3327 				  struct elf_link_hash_entry *h)
3328 {
3329   bfd *dynobj;
3330   asection *s;
3331   unsigned int power_of_two;
3332 
3333   dynobj = elf_hash_table (info)->dynobj;
3334 
3335   /* Make sure we know what is going on here.  */
3336   BFD_ASSERT (dynobj != NULL
3337 	      && (h->needs_plt
3338 		  || h->u.weakdef != NULL
3339 		  || (h->def_dynamic
3340 		      && h->ref_regular
3341 		      && !h->def_regular)));
3342 
3343   /* If this is a function, put it in the procedure linkage table.  We
3344      will fill in the contents of the procedure linkage table later,
3345      when we know the address of the .got section.  */
3346   if (h->type == STT_FUNC
3347       || h->needs_plt)
3348     {
3349       if (! info->shared
3350 	  && !h->def_dynamic
3351 	  && !h->ref_dynamic)
3352 	{
3353 	  /* This case can occur if we saw a PLT reloc in an input
3354 	     file, but the symbol was never referred to by a dynamic
3355 	     object.  In such a case, we don't actually need to build
3356 	     a procedure linkage table, and we can just do a REL64
3357 	     reloc instead.  */
3358 	  BFD_ASSERT (h->needs_plt);
3359 	  return TRUE;
3360 	}
3361 
3362       /* Make sure this symbol is output as a dynamic symbol.  */
3363       if (h->dynindx == -1)
3364 	{
3365 	  if (! bfd_elf_link_record_dynamic_symbol (info, h))
3366 	    return FALSE;
3367 	}
3368 
3369       s = bfd_get_section_by_name (dynobj, ".plt");
3370       BFD_ASSERT (s != NULL);
3371 
3372       /* If this is the first .plt entry, make room for the special
3373 	 first entry.  */
3374       if (s->size == 0)
3375 	s->size += PLT_ENTRY_SIZE;
3376 
3377       /* If this symbol is not defined in a regular file, and we are
3378 	 not generating a shared library, then set the symbol to this
3379 	 location in the .plt.  This is required to make function
3380 	 pointers compare as equal between the normal executable and
3381 	 the shared library.  */
3382       if (! info->shared
3383 	  && !h->def_regular)
3384 	{
3385 	  h->root.u.def.section = s;
3386 	  h->root.u.def.value = s->size;
3387 	}
3388 
3389       h->plt.offset = s->size;
3390 
3391       /* Make room for this entry.  */
3392       s->size += elf_sh64_sizeof_plt (info);
3393 
3394       /* We also need to make an entry in the .got.plt section, which
3395 	 will be placed in the .got section by the linker script.  */
3396 
3397       s = bfd_get_section_by_name (dynobj, ".got.plt");
3398       BFD_ASSERT (s != NULL);
3399       s->size += 8;
3400 
3401       /* We also need to make an entry in the .rela.plt section.  */
3402 
3403       s = bfd_get_section_by_name (dynobj, ".rela.plt");
3404       BFD_ASSERT (s != NULL);
3405       s->size += sizeof (Elf64_External_Rela);
3406 
3407       return TRUE;
3408     }
3409 
3410   /* If this is a weak symbol, and there is a real definition, the
3411      processor independent code will have arranged for us to see the
3412      real definition first, and we can just use the same value.  */
3413   if (h->u.weakdef != NULL)
3414     {
3415       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3416 		  || h->u.weakdef->root.type == bfd_link_hash_defweak);
3417       h->root.u.def.section = h->u.weakdef->root.u.def.section;
3418       h->root.u.def.value = h->u.weakdef->root.u.def.value;
3419       return TRUE;
3420     }
3421 
3422   /* This is a reference to a symbol defined by a dynamic object which
3423      is not a function.  */
3424 
3425   /* If we are creating a shared library, we must presume that the
3426      only references to the symbol are via the global offset table.
3427      For such cases we need not do anything here; the relocations will
3428      be handled correctly by relocate_section.  */
3429   if (info->shared)
3430     return TRUE;
3431 
3432   /* If there are no references to this symbol that do not use the
3433      GOT, we don't need to generate a copy reloc.  */
3434   if (!h->non_got_ref)
3435     return TRUE;
3436 
3437   /* We must allocate the symbol in our .dynbss section, which will
3438      become part of the .bss section of the executable.  There will be
3439      an entry for this symbol in the .dynsym section.  The dynamic
3440      object will contain position independent code, so all references
3441      from the dynamic object to this symbol will go through the global
3442      offset table.  The dynamic linker will use the .dynsym entry to
3443      determine the address it must put in the global offset table, so
3444      both the dynamic object and the regular object will refer to the
3445      same memory location for the variable.  */
3446 
3447   s = bfd_get_section_by_name (dynobj, ".dynbss");
3448   BFD_ASSERT (s != NULL);
3449 
3450   /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
3451      copy the initial value out of the dynamic object and into the
3452      runtime process image.  We need to remember the offset into the
3453      .rela.bss section we are going to use.  */
3454   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
3455     {
3456       asection *srel;
3457 
3458       srel = bfd_get_section_by_name (dynobj, ".rela.bss");
3459       BFD_ASSERT (srel != NULL);
3460       srel->size += sizeof (Elf64_External_Rela);
3461       h->needs_copy = 1;
3462     }
3463 
3464   /* We need to figure out the alignment required for this symbol.  I
3465      have no idea how ELF linkers handle this.  */
3466   power_of_two = bfd_log2 (h->size);
3467   if (power_of_two > 3)
3468     power_of_two = 3;
3469 
3470   /* Apply the required alignment.  */
3471   s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
3472   if (power_of_two > bfd_get_section_alignment (dynobj, s))
3473     {
3474       if (! bfd_set_section_alignment (dynobj, s, power_of_two))
3475 	return FALSE;
3476     }
3477 
3478   /* Define the symbol as being at this point in the section.  */
3479   h->root.u.def.section = s;
3480   h->root.u.def.value = s->size;
3481 
3482   /* Increment the section size to make room for the symbol.  */
3483   s->size += h->size;
3484 
3485   return TRUE;
3486 }
3487 
3488 /* This function is called via sh_elf_link_hash_traverse if we are
3489    creating a shared object with -Bsymbolic.  It discards the space
3490    allocated to copy PC relative relocs against symbols which are
3491    defined in regular objects.  We allocated space for them in the
3492    check_relocs routine, but we won't fill them in in the
3493    relocate_section routine.  */
3494 
3495 static bfd_boolean
sh64_elf64_discard_copies(struct elf_sh64_link_hash_entry * h,void * ignore ATTRIBUTE_UNUSED)3496 sh64_elf64_discard_copies (struct elf_sh64_link_hash_entry *h,
3497 			   void *ignore ATTRIBUTE_UNUSED)
3498 {
3499   struct elf_sh64_pcrel_relocs_copied *s;
3500 
3501   if (h->root.root.type == bfd_link_hash_warning)
3502     h = (struct elf_sh64_link_hash_entry *) h->root.root.u.i.link;
3503 
3504   /* We only discard relocs for symbols defined in a regular object.  */
3505   if (!h->root.def_regular)
3506     return TRUE;
3507 
3508   for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
3509     s->section->size -= s->count * sizeof (Elf64_External_Rela);
3510 
3511   return TRUE;
3512 }
3513 
3514 /* Set the sizes of the dynamic sections.  */
3515 
3516 static bfd_boolean
sh64_elf64_size_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)3517 sh64_elf64_size_dynamic_sections (bfd *output_bfd,
3518 				  struct bfd_link_info *info)
3519 {
3520   bfd *dynobj;
3521   asection *s;
3522   bfd_boolean plt;
3523   bfd_boolean relocs;
3524   bfd_boolean reltext;
3525 
3526   dynobj = elf_hash_table (info)->dynobj;
3527   BFD_ASSERT (dynobj != NULL);
3528 
3529   if (elf_hash_table (info)->dynamic_sections_created)
3530     {
3531       /* Set the contents of the .interp section to the interpreter.  */
3532       if (info->executable)
3533 	{
3534 	  s = bfd_get_section_by_name (dynobj, ".interp");
3535 	  BFD_ASSERT (s != NULL);
3536 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3537 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3538 	}
3539     }
3540   else
3541     {
3542       /* We may have created entries in the .rela.got section.
3543 	 However, if we are not creating the dynamic sections, we will
3544 	 not actually use these entries.  Reset the size of .rela.got,
3545 	 which will cause it to get stripped from the output file
3546 	 below.  */
3547       s = bfd_get_section_by_name (dynobj, ".rela.got");
3548       if (s != NULL)
3549 	s->size = 0;
3550     }
3551 
3552   /* If this is a -Bsymbolic shared link, then we need to discard all
3553      PC relative relocs against symbols defined in a regular object.
3554      We allocated space for them in the check_relocs routine, but we
3555      will not fill them in in the relocate_section routine.  */
3556   if (info->shared && info->symbolic)
3557     sh64_elf64_link_hash_traverse (sh64_elf64_hash_table (info),
3558 				   sh64_elf64_discard_copies, NULL);
3559 
3560   /* The check_relocs and adjust_dynamic_symbol entry points have
3561      determined the sizes of the various dynamic sections.  Allocate
3562      memory for them.  */
3563   plt = FALSE;
3564   relocs = FALSE;
3565   reltext = FALSE;
3566   for (s = dynobj->sections; s != NULL; s = s->next)
3567     {
3568       const char *name;
3569       bfd_boolean strip;
3570 
3571       if ((s->flags & SEC_LINKER_CREATED) == 0)
3572 	continue;
3573 
3574       /* It's OK to base decisions on the section name, because none
3575 	 of the dynobj section names depend upon the input files.  */
3576       name = bfd_get_section_name (dynobj, s);
3577 
3578       strip = FALSE;
3579 
3580       if (strcmp (name, ".plt") == 0)
3581 	{
3582 	  if (s->size == 0)
3583 	    {
3584 	      /* Strip this section if we don't need it; see the
3585 		 comment below.  */
3586 	      strip = TRUE;
3587 	    }
3588 	  else
3589 	    {
3590 	      /* Remember whether there is a PLT.  */
3591 	      plt = TRUE;
3592 	    }
3593 	}
3594       else if (strncmp (name, ".rela", 5) == 0)
3595 	{
3596 	  if (s->size == 0)
3597 	    {
3598 	      /* If we don't need this section, strip it from the
3599 		 output file.  This is mostly to handle .rela.bss and
3600 		 .rela.plt.  We must create both sections in
3601 		 create_dynamic_sections, because they must be created
3602 		 before the linker maps input sections to output
3603 		 sections.  The linker does that before
3604 		 adjust_dynamic_symbol is called, and it is that
3605 		 function which decides whether anything needs to go
3606 		 into these sections.  */
3607 	      strip = TRUE;
3608 	    }
3609 	  else
3610 	    {
3611 	      asection *target;
3612 
3613 	      /* Remember whether there are any reloc sections other
3614 		 than .rela.plt.  */
3615 	      if (strcmp (name, ".rela.plt") != 0)
3616 		{
3617 		  const char *outname;
3618 
3619 		  relocs = TRUE;
3620 
3621 		  /* If this relocation section applies to a read only
3622 		     section, then we probably need a DT_TEXTREL
3623 		     entry.  The entries in the .rela.plt section
3624 		     really apply to the .got section, which we
3625 		     created ourselves and so know is not readonly.  */
3626 		  outname = bfd_get_section_name (output_bfd,
3627 						  s->output_section);
3628 		  target = bfd_get_section_by_name (output_bfd, outname + 5);
3629 		  if (target != NULL
3630 		      && (target->flags & SEC_READONLY) != 0
3631 		      && (target->flags & SEC_ALLOC) != 0)
3632 		    reltext = TRUE;
3633 		}
3634 
3635 	      /* We use the reloc_count field as a counter if we need
3636 		 to copy relocs into the output file.  */
3637 	      s->reloc_count = 0;
3638 	    }
3639 	}
3640       else if (strncmp (name, ".got", 4) != 0)
3641 	{
3642 	  /* It's not one of our sections, so don't allocate space.  */
3643 	  continue;
3644 	}
3645 
3646       if (strip)
3647 	{
3648 	  s->flags |= SEC_EXCLUDE;
3649 	  continue;
3650 	}
3651 
3652       /* Allocate memory for the section contents.  */
3653       s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3654       if (s->contents == NULL && s->size != 0)
3655 	return FALSE;
3656     }
3657 
3658   if (elf_hash_table (info)->dynamic_sections_created)
3659     {
3660       /* Add some entries to the .dynamic section.  We fill in the
3661 	 values later, in sh64_elf64_finish_dynamic_sections, but we
3662 	 must add the entries now so that we get the correct size for
3663 	 the .dynamic section.  The DT_DEBUG entry is filled in by the
3664 	 dynamic linker and used by the debugger.  */
3665       if (info->executable)
3666 	{
3667 	  if (!_bfd_elf_add_dynamic_entry (info, DT_DEBUG, 0))
3668 	    return FALSE;
3669 	}
3670 
3671       if (plt)
3672 	{
3673 	  if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0)
3674 	      || !_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
3675 	      || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
3676 	      || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
3677 	    return FALSE;
3678 	}
3679 
3680       if (relocs)
3681 	{
3682 	  if (!_bfd_elf_add_dynamic_entry (info, DT_RELA, 0)
3683 	      || !_bfd_elf_add_dynamic_entry (info, DT_RELASZ, 0)
3684 	      || !_bfd_elf_add_dynamic_entry (info, DT_RELAENT,
3685 					      sizeof (Elf64_External_Rela)))
3686 	    return FALSE;
3687 	}
3688 
3689       if (reltext)
3690 	{
3691 	  if (!_bfd_elf_add_dynamic_entry (info, DT_TEXTREL, 0))
3692 	    return FALSE;
3693 	}
3694     }
3695 
3696   return TRUE;
3697 }
3698 
3699 /* Finish up dynamic symbol handling.  We set the contents of various
3700    dynamic sections here.  */
3701 
3702 static bfd_boolean
sh64_elf64_finish_dynamic_symbol(bfd * output_bfd,struct bfd_link_info * info,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)3703 sh64_elf64_finish_dynamic_symbol (bfd *output_bfd,
3704 				  struct bfd_link_info *info,
3705 				  struct elf_link_hash_entry *h,
3706 				  Elf_Internal_Sym *sym)
3707 {
3708   bfd *dynobj;
3709 
3710   dynobj = elf_hash_table (info)->dynobj;
3711 
3712   if (h->plt.offset != (bfd_vma) -1)
3713     {
3714       asection *splt;
3715       asection *sgot;
3716       asection *srel;
3717 
3718       bfd_vma plt_index;
3719       bfd_vma got_offset;
3720       Elf_Internal_Rela rel;
3721       bfd_byte *loc;
3722 
3723       /* This symbol has an entry in the procedure linkage table.  Set
3724 	 it up.  */
3725 
3726       BFD_ASSERT (h->dynindx != -1);
3727 
3728       splt = bfd_get_section_by_name (dynobj, ".plt");
3729       sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3730       srel = bfd_get_section_by_name (dynobj, ".rela.plt");
3731       BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL);
3732 
3733       /* Get the index in the procedure linkage table which
3734 	 corresponds to this symbol.  This is the index of this symbol
3735 	 in all the symbols for which we are making plt entries.  The
3736 	 first entry in the procedure linkage table is reserved.  */
3737       plt_index = h->plt.offset / elf_sh64_sizeof_plt (info) - 1;
3738 
3739       /* Get the offset into the .got table of the entry that
3740 	 corresponds to this function.  Each .got entry is 8 bytes.
3741 	 The first three are reserved.  */
3742       got_offset = (plt_index + 3) * 8;
3743 
3744       if (info->shared)
3745 	got_offset -= GOT_BIAS;
3746 
3747       /* Fill in the entry in the procedure linkage table.  */
3748       if (! info->shared)
3749 	{
3750 	  if (elf_sh64_plt_entry == NULL)
3751 	    {
3752 	      elf_sh64_plt_entry = (bfd_big_endian (output_bfd) ?
3753 				  elf_sh64_plt_entry_be : elf_sh64_plt_entry_le);
3754 	    }
3755 	  memcpy (splt->contents + h->plt.offset, elf_sh64_plt_entry,
3756 		  elf_sh64_sizeof_plt (info));
3757 	  movi_3shori_putval (output_bfd,
3758 			      (sgot->output_section->vma
3759 			       + sgot->output_offset
3760 			       + got_offset),
3761 			      (splt->contents + h->plt.offset
3762 			       + elf_sh64_plt_symbol_offset (info)));
3763 
3764 	  /* Set bottom bit because its for a branch to SHmedia */
3765 	  movi_shori_putval (output_bfd,
3766 			     -(h->plt.offset
3767 			      + elf_sh64_plt_plt0_offset (info) + 8)
3768 			     | 1,
3769 			     (splt->contents + h->plt.offset
3770 			      + elf_sh64_plt_plt0_offset (info)));
3771 	}
3772       else
3773 	{
3774 	  if (elf_sh64_pic_plt_entry == NULL)
3775 	    {
3776 	      elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
3777 				      elf_sh64_pic_plt_entry_be :
3778 				      elf_sh64_pic_plt_entry_le);
3779 	    }
3780 	  memcpy (splt->contents + h->plt.offset, elf_sh64_pic_plt_entry,
3781 		  elf_sh64_sizeof_plt (info));
3782 	  movi_shori_putval (output_bfd, got_offset,
3783 			     (splt->contents + h->plt.offset
3784 			      + elf_sh64_plt_symbol_offset (info)));
3785 	}
3786 
3787       if (info->shared)
3788 	got_offset += GOT_BIAS;
3789 
3790       movi_shori_putval (output_bfd,
3791 			 plt_index * sizeof (Elf64_External_Rela),
3792 			 (splt->contents + h->plt.offset
3793 			  + elf_sh64_plt_reloc_offset (info)));
3794 
3795       /* Fill in the entry in the global offset table.  */
3796       bfd_put_64 (output_bfd,
3797 		  (splt->output_section->vma
3798 		   + splt->output_offset
3799 		   + h->plt.offset
3800 		   + elf_sh64_plt_temp_offset (info)),
3801 		  sgot->contents + got_offset);
3802 
3803       /* Fill in the entry in the .rela.plt section.  */
3804       rel.r_offset = (sgot->output_section->vma
3805 		      + sgot->output_offset
3806 		      + got_offset);
3807       rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_JMP_SLOT64);
3808       rel.r_addend = 0;
3809       rel.r_addend = GOT_BIAS;
3810       loc = srel->contents + plt_index * sizeof (Elf64_External_Rela);
3811       bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3812 
3813       if (!h->def_regular)
3814 	{
3815 	  /* Mark the symbol as undefined, rather than as defined in
3816 	     the .plt section.  Leave the value alone.  */
3817 	  sym->st_shndx = SHN_UNDEF;
3818 	}
3819     }
3820 
3821   if (h->got.offset != (bfd_vma) -1)
3822     {
3823       asection *sgot;
3824       asection *srel;
3825       Elf_Internal_Rela rel;
3826       bfd_byte *loc;
3827 
3828       /* This symbol has an entry in the global offset table.  Set it
3829 	 up.  */
3830 
3831       sgot = bfd_get_section_by_name (dynobj, ".got");
3832       srel = bfd_get_section_by_name (dynobj, ".rela.got");
3833       BFD_ASSERT (sgot != NULL && srel != NULL);
3834 
3835       rel.r_offset = (sgot->output_section->vma
3836 		      + sgot->output_offset
3837 		      + (h->got.offset &~ 1));
3838 
3839       /* If this is a -Bsymbolic link, and the symbol is defined
3840 	 locally, we just want to emit a RELATIVE reloc.  Likewise if
3841 	 the symbol was forced to be local because of a version file.
3842 	 The entry in the global offset table will already have been
3843 	 initialized in the relocate_section function.  */
3844       if (info->shared
3845 	  && (info->symbolic || h->dynindx == -1)
3846 	  && h->def_regular)
3847 	{
3848 	  rel.r_info = ELF64_R_INFO (0, R_SH_RELATIVE64);
3849 	  rel.r_addend = (h->root.u.def.value
3850 			  + h->root.u.def.section->output_section->vma
3851 			  + h->root.u.def.section->output_offset);
3852 	}
3853       else
3854 	{
3855 	  bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3856 	  rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_GLOB_DAT64);
3857 	  rel.r_addend = 0;
3858 	}
3859 
3860       loc = srel->contents;
3861       loc += srel->reloc_count++ * sizeof (Elf64_External_Rela);
3862       bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3863     }
3864 
3865   if (h->needs_copy)
3866     {
3867       asection *s;
3868       Elf_Internal_Rela rel;
3869       bfd_byte *loc;
3870 
3871       /* This symbol needs a copy reloc.  Set it up.  */
3872 
3873       BFD_ASSERT (h->dynindx != -1
3874 		  && (h->root.type == bfd_link_hash_defined
3875 		      || h->root.type == bfd_link_hash_defweak));
3876 
3877       s = bfd_get_section_by_name (h->root.u.def.section->owner,
3878 				   ".rela.bss");
3879       BFD_ASSERT (s != NULL);
3880 
3881       rel.r_offset = (h->root.u.def.value
3882 		      + h->root.u.def.section->output_section->vma
3883 		      + h->root.u.def.section->output_offset);
3884       rel.r_info = ELF64_R_INFO (h->dynindx, R_SH_COPY64);
3885       rel.r_addend = 0;
3886       loc = s->contents;
3887       loc += s->reloc_count++ * sizeof (Elf64_External_Rela);
3888       bfd_elf64_swap_reloca_out (output_bfd, &rel, loc);
3889     }
3890 
3891   /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  */
3892   if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3893       || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3894     sym->st_shndx = SHN_ABS;
3895 
3896   return TRUE;
3897 }
3898 
3899 /* Finish up the dynamic sections.  */
3900 
3901 static bfd_boolean
sh64_elf64_finish_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)3902 sh64_elf64_finish_dynamic_sections (bfd *output_bfd,
3903 				    struct bfd_link_info *info)
3904 {
3905   bfd *dynobj;
3906   asection *sgot;
3907   asection *sdyn;
3908 
3909   dynobj = elf_hash_table (info)->dynobj;
3910 
3911   sgot = bfd_get_section_by_name (dynobj, ".got.plt");
3912   BFD_ASSERT (sgot != NULL);
3913   sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3914 
3915   if (elf_hash_table (info)->dynamic_sections_created)
3916     {
3917       asection *splt;
3918       Elf64_External_Dyn *dyncon, *dynconend;
3919 
3920       BFD_ASSERT (sdyn != NULL);
3921 
3922       dyncon = (Elf64_External_Dyn *) sdyn->contents;
3923       dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
3924       for (; dyncon < dynconend; dyncon++)
3925 	{
3926 	  Elf_Internal_Dyn dyn;
3927 	  const char *name;
3928 	  asection *s;
3929 	  struct elf_link_hash_entry *h;
3930 
3931 	  bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
3932 
3933 	  switch (dyn.d_tag)
3934 	    {
3935 	    default:
3936 	      break;
3937 
3938 	    case DT_INIT:
3939 	      name = info->init_function;
3940 	      goto get_sym;
3941 
3942 	    case DT_FINI:
3943 	      name = info->fini_function;
3944 	    get_sym:
3945 	      if (dyn.d_un.d_val != 0)
3946 		{
3947 		  h = elf_link_hash_lookup (elf_hash_table (info), name,
3948 					    FALSE, FALSE, TRUE);
3949 		  if (h != NULL && (h->other & STO_SH5_ISA32))
3950 		    {
3951 		      dyn.d_un.d_val |= 1;
3952 		      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3953 		    }
3954 		}
3955 	      break;
3956 
3957 	    case DT_PLTGOT:
3958 	      name = ".got";
3959 	      goto get_vma;
3960 
3961 	    case DT_JMPREL:
3962 	      name = ".rela.plt";
3963 	    get_vma:
3964 	      s = bfd_get_section_by_name (output_bfd, name);
3965 	      BFD_ASSERT (s != NULL);
3966 	      dyn.d_un.d_ptr = s->vma;
3967 	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3968 	      break;
3969 
3970 	    case DT_PLTRELSZ:
3971 	      s = bfd_get_section_by_name (output_bfd, ".rela.plt");
3972 	      BFD_ASSERT (s != NULL);
3973 	      dyn.d_un.d_val = s->size;
3974 	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3975 	      break;
3976 
3977 	    case DT_RELASZ:
3978 	      /* My reading of the SVR4 ABI indicates that the
3979 		 procedure linkage table relocs (DT_JMPREL) should be
3980 		 included in the overall relocs (DT_RELA).  This is
3981 		 what Solaris does.  However, UnixWare can not handle
3982 		 that case.  Therefore, we override the DT_RELASZ entry
3983 		 here to make it not include the JMPREL relocs.  Since
3984 		 the linker script arranges for .rela.plt to follow all
3985 		 other relocation sections, we don't have to worry
3986 		 about changing the DT_RELA entry.  */
3987 	      s = bfd_get_section_by_name (output_bfd, ".rela.plt");
3988 	      if (s != NULL)
3989 		dyn.d_un.d_val -= s->size;
3990 	      bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
3991 	      break;
3992 	    }
3993 	}
3994 
3995       /* Fill in the first entry in the procedure linkage table.  */
3996       splt = bfd_get_section_by_name (dynobj, ".plt");
3997       if (splt && splt->size > 0)
3998 	{
3999 	  if (info->shared)
4000 	    {
4001 	      if (elf_sh64_pic_plt_entry == NULL)
4002 		{
4003 		  elf_sh64_pic_plt_entry = (bfd_big_endian (output_bfd) ?
4004 					  elf_sh64_pic_plt_entry_be :
4005 					  elf_sh64_pic_plt_entry_le);
4006 		}
4007 	      memcpy (splt->contents, elf_sh64_pic_plt_entry,
4008 		      elf_sh64_sizeof_plt (info));
4009 	    }
4010 	  else
4011 	    {
4012 	      if (elf_sh64_plt0_entry == NULL)
4013 		{
4014 		  elf_sh64_plt0_entry = (bfd_big_endian (output_bfd) ?
4015 				       elf_sh64_plt0_entry_be :
4016 				       elf_sh64_plt0_entry_le);
4017 		}
4018 	      memcpy (splt->contents, elf_sh64_plt0_entry, PLT_ENTRY_SIZE);
4019 	      movi_3shori_putval (output_bfd,
4020 				  sgot->output_section->vma
4021 				  + sgot->output_offset,
4022 				  splt->contents
4023 				  + elf_sh64_plt0_gotplt_offset (info));
4024 	    }
4025 
4026 	  /* UnixWare sets the entsize of .plt to 8, although that doesn't
4027 	     really seem like the right value.  */
4028 	  elf_section_data (splt->output_section)->this_hdr.sh_entsize = 8;
4029 	}
4030     }
4031 
4032   /* Fill in the first three entries in the global offset table.  */
4033   if (sgot->size > 0)
4034     {
4035       if (sdyn == NULL)
4036 	bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents);
4037       else
4038 	bfd_put_64 (output_bfd,
4039 		    sdyn->output_section->vma + sdyn->output_offset,
4040 		    sgot->contents);
4041       bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
4042       bfd_put_64 (output_bfd, (bfd_vma) 0, sgot->contents + 16);
4043     }
4044 
4045   elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 8;
4046 
4047   return TRUE;
4048 }
4049 
4050 /* Merge non visibility st_other attribute when the symbol comes from
4051    a dynamic object.  */
4052 static void
sh64_elf64_merge_symbol_attribute(struct elf_link_hash_entry * h,const Elf_Internal_Sym * isym,bfd_boolean definition,bfd_boolean dynamic)4053 sh64_elf64_merge_symbol_attribute (struct elf_link_hash_entry *h,
4054 				   const Elf_Internal_Sym *isym,
4055 				   bfd_boolean definition,
4056 				   bfd_boolean dynamic)
4057 {
4058   if (isym->st_other != 0 && dynamic)
4059     {
4060       unsigned char other;
4061 
4062       /* Take the balance of OTHER from the definition.  */
4063       other = (definition ? isym->st_other : h->other);
4064       other &= ~ ELF_ST_VISIBILITY (-1);
4065       h->other = other | ELF_ST_VISIBILITY (h->other);
4066     }
4067 
4068   return;
4069 }
4070 
4071 static const struct bfd_elf_special_section sh64_elf64_special_sections[]=
4072 {
4073   { ".cranges", 8, 0, SHT_PROGBITS, 0 },
4074   { NULL,       0, 0, 0,            0 }
4075 };
4076 
4077 static const struct bfd_elf_special_section *
sh64_elf64_get_sec_type_attr(bfd * abfd,asection * sec)4078 sh64_elf64_get_sec_type_attr (bfd *abfd, asection *sec)
4079 {
4080   const struct bfd_elf_special_section *ssect;
4081 
4082   /* See if this is one of the special sections.  */
4083   if (sec->name == NULL)
4084     return NULL;
4085 
4086   ssect = _bfd_elf_get_special_section (sec->name,
4087 					sh64_elf64_special_sections,
4088 					sec->use_rela_p);
4089   if (ssect != NULL)
4090     return ssect;
4091 
4092   return _bfd_elf_get_sec_type_attr (abfd, sec);
4093 }
4094 
4095 #define TARGET_BIG_SYM		bfd_elf64_sh64_vec
4096 #define TARGET_BIG_NAME		"elf64-sh64"
4097 #define TARGET_LITTLE_SYM	bfd_elf64_sh64l_vec
4098 #define TARGET_LITTLE_NAME	"elf64-sh64l"
4099 #define ELF_ARCH		bfd_arch_sh
4100 #define ELF_MACHINE_CODE	EM_SH
4101 #define ELF_MAXPAGESIZE		128
4102 
4103 #define elf_symbol_leading_char '_'
4104 
4105 #define bfd_elf64_bfd_reloc_type_lookup	sh_elf64_reloc_type_lookup
4106 #define elf_info_to_howto		sh_elf64_info_to_howto
4107 
4108 /* Note: there's no relaxation at present.  */
4109 
4110 #define elf_backend_relocate_section	sh_elf64_relocate_section
4111 #define bfd_elf64_bfd_get_relocated_section_contents \
4112 					sh_elf64_get_relocated_section_contents
4113 #define elf_backend_object_p		sh_elf64_set_mach_from_flags
4114 #define bfd_elf64_bfd_set_private_flags \
4115 					sh_elf64_set_private_flags
4116 #define bfd_elf64_bfd_copy_private_bfd_data \
4117 					sh_elf64_copy_private_data
4118 #define bfd_elf64_bfd_merge_private_bfd_data \
4119 					sh_elf64_merge_private_data
4120 #define elf_backend_fake_sections	sh64_elf64_fake_sections
4121 
4122 #define elf_backend_gc_mark_hook        sh_elf64_gc_mark_hook
4123 #define elf_backend_gc_sweep_hook       sh_elf64_gc_sweep_hook
4124 #define elf_backend_check_relocs        sh_elf64_check_relocs
4125 
4126 #define elf_backend_can_gc_sections	1
4127 
4128 #define elf_backend_get_symbol_type	sh64_elf64_get_symbol_type
4129 
4130 #define elf_backend_add_symbol_hook	sh64_elf64_add_symbol_hook
4131 
4132 #define elf_backend_link_output_symbol_hook \
4133 	sh64_elf64_link_output_symbol_hook
4134 
4135 #define	elf_backend_merge_symbol_attribute \
4136 	sh64_elf64_merge_symbol_attribute
4137 
4138 #define elf_backend_final_write_processing \
4139  	sh64_elf64_final_write_processing
4140 
4141 #define elf_backend_create_dynamic_sections \
4142 					sh64_elf64_create_dynamic_sections
4143 #define bfd_elf64_bfd_link_hash_table_create \
4144 					sh64_elf64_link_hash_table_create
4145 #define elf_backend_adjust_dynamic_symbol \
4146 					sh64_elf64_adjust_dynamic_symbol
4147 #define elf_backend_size_dynamic_sections \
4148 					sh64_elf64_size_dynamic_sections
4149 #define elf_backend_finish_dynamic_symbol \
4150 					sh64_elf64_finish_dynamic_symbol
4151 #define elf_backend_finish_dynamic_sections \
4152 					sh64_elf64_finish_dynamic_sections
4153 #define elf_backend_get_sec_type_attr	sh64_elf64_get_sec_type_attr
4154 
4155 #define elf_backend_want_got_plt	1
4156 #define elf_backend_plt_readonly	1
4157 #define elf_backend_want_plt_sym	0
4158 #define elf_backend_got_header_size	24
4159 
4160 #include "elf64-target.h"
4161 
4162 /* NetBSD support.  */
4163 #undef	TARGET_BIG_SYM
4164 #define	TARGET_BIG_SYM			bfd_elf64_sh64nbsd_vec
4165 #undef	TARGET_BIG_NAME
4166 #define	TARGET_BIG_NAME			"elf64-sh64-nbsd"
4167 #undef	TARGET_LITTLE_SYM
4168 #define	TARGET_LITTLE_SYM		bfd_elf64_sh64lnbsd_vec
4169 #undef	TARGET_LITTLE_NAME
4170 #define	TARGET_LITTLE_NAME		"elf64-sh64l-nbsd"
4171 #undef	ELF_MAXPAGESIZE
4172 #define	ELF_MAXPAGESIZE			0x10000
4173 #undef	elf_symbol_leading_char
4174 #define	elf_symbol_leading_char		0
4175 
4176 #define	elf64_bed			elf64_sh64_nbsd_bed
4177 
4178 #include "elf64-target.h"
4179 
4180 /* Linux support.  */
4181 #undef	TARGET_BIG_SYM
4182 #define	TARGET_BIG_SYM			bfd_elf64_sh64blin_vec
4183 #undef	TARGET_BIG_NAME
4184 #define	TARGET_BIG_NAME			"elf64-sh64big-linux"
4185 #undef	TARGET_LITTLE_SYM
4186 #define	TARGET_LITTLE_SYM		bfd_elf64_sh64lin_vec
4187 #undef	TARGET_LITTLE_NAME
4188 #define	TARGET_LITTLE_NAME		"elf64-sh64-linux"
4189 
4190 #define	INCLUDED_TARGET_FILE
4191 #include "elf64-target.h"
4192