175900Sjoe/* Renesas / SuperH SH specific support for 32-bit ELF
275900Sjoe   Copyright (C) 1996-2020 Free Software Foundation, Inc.
391853Sluigi   Contributed by Ian Lance Taylor, Cygnus Support.
475900Sjoe
575900Sjoe   This file is part of BFD, the Binary File Descriptor library.
675900Sjoe
775900Sjoe   This program is free software; you can redistribute it and/or modify
891853Sluigi   it under the terms of the GNU General Public License as published by
991853Sluigi   the Free Software Foundation; either version 3 of the License, or
1075900Sjoe   (at your option) any later version.
1175900Sjoe
1275900Sjoe   This program is distributed in the hope that it will be useful,
1391853Sluigi   but WITHOUT ANY WARRANTY; without even the implied warranty of
1491853Sluigi   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
1591853Sluigi   GNU General Public License for more details.
1691853Sluigi
1791853Sluigi   You should have received a copy of the GNU General Public License
1891853Sluigi   along with this program; if not, write to the Free Software
1991853Sluigi   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
2091853Sluigi   MA 02110-1301, USA.  */
2191853Sluigi
2291853Sluigi#include "sysdep.h"
2391853Sluigi#include "bfd.h"
2491871Sluigi#include "bfdlink.h"
2591853Sluigi#include "libbfd.h"
2691853Sluigi#include "elf-bfd.h"
2775900Sjoe#include "elf-vxworks.h"
2891853Sluigi#include "elf/sh.h"
2991853Sluigi#include "dwarf2.h"
3075900Sjoe#include "libiberty.h"
3175900Sjoe#include "../opcodes/sh-opc.h"
3291853Sluigi
3391853Sluigi/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1.  */
3491853Sluigi#define OCTETS_PER_BYTE(ABFD, SEC) 1
3591853Sluigi
3691853Sluigistatic bfd_reloc_status_type sh_elf_reloc
3791853Sluigi  (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
3891853Sluigistatic bfd_reloc_status_type sh_elf_ignore_reloc
3991853Sluigi  (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
4091853Sluigistatic bfd_boolean sh_elf_relax_delete_bytes
4191853Sluigi  (bfd *, asection *, bfd_vma, int);
4291853Sluigistatic bfd_boolean sh_elf_align_loads
4375900Sjoe  (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *);
4491853Sluigistatic bfd_boolean sh_elf_swap_insns
4591853Sluigi  (bfd *, asection *, void *, bfd_byte *, bfd_vma);
4675900Sjoestatic int sh_elf_optimized_tls_reloc
4775900Sjoe  (struct bfd_link_info *, int, int);
4875900Sjoestatic bfd_vma dtpoff_base
4991853Sluigi  (struct bfd_link_info *);
5091853Sluigistatic bfd_vma tpoff
5175900Sjoe  (struct bfd_link_info *, bfd_vma);
5275900Sjoe
5375900Sjoe/* The name of the dynamic interpreter.  This is put in the .interp
5491853Sluigi   section.  */
5591853Sluigi
5691853Sluigi#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
5791853Sluigi
5875900Sjoe/* FDPIC binaries have a default 128K stack.  */
5975900Sjoe#define DEFAULT_STACK_SIZE 0x20000
6075900Sjoe
6191853Sluigi#define MINUS_ONE ((bfd_vma) 0 - 1)
6296398Sdd
6396398Sdd/* Decide whether a reference to a symbol can be resolved locally or
6475900Sjoe   not.  If the symbol is protected, we want the local address, but
6575900Sjoe   its function descriptor must be assigned by the dynamic linker.  */
6691853Sluigi#define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
6796398Sdd  (SYMBOL_REFERENCES_LOCAL (INFO, H) \
6875900Sjoe   || ! elf_hash_table (INFO)->dynamic_sections_created)
6975900Sjoe
7091853Sluigi#define SH_PARTIAL32 TRUE
7196398Sdd#define SH_SRC_MASK32 0xffffffff
7275900Sjoe#define SH_ELF_RELOC sh_elf_reloc
7375900Sjoestatic reloc_howto_type sh_elf_howto_table[] =
7475900Sjoe{
7575900Sjoe#include "elf32-sh-relocs.h"
7675900Sjoe};
7775900Sjoe
7875900Sjoe#define SH_PARTIAL32 FALSE
7975900Sjoe#define SH_SRC_MASK32 0
8075900Sjoe#define SH_ELF_RELOC bfd_elf_generic_reloc
8175900Sjoestatic reloc_howto_type sh_vxworks_howto_table[] =
8275900Sjoe{
8375900Sjoe#include "elf32-sh-relocs.h"
84};
85
86/* Return true if OUTPUT_BFD is a VxWorks object.  */
87
88static bfd_boolean
89vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED)
90{
91#if !defined SH_TARGET_ALREADY_DEFINED
92  extern const bfd_target sh_elf32_vxworks_le_vec;
93  extern const bfd_target sh_elf32_vxworks_vec;
94
95  return (abfd->xvec == &sh_elf32_vxworks_le_vec
96	  || abfd->xvec == &sh_elf32_vxworks_vec);
97#else
98  return FALSE;
99#endif
100}
101
102/* Return true if OUTPUT_BFD is an FDPIC object.  */
103
104static bfd_boolean
105fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED)
106{
107#if !defined SH_TARGET_ALREADY_DEFINED
108  extern const bfd_target sh_elf32_fdpic_le_vec;
109  extern const bfd_target sh_elf32_fdpic_be_vec;
110
111  return (abfd->xvec == &sh_elf32_fdpic_le_vec
112	  || abfd->xvec == &sh_elf32_fdpic_be_vec);
113#else
114  return FALSE;
115#endif
116}
117
118/* Return the howto table for ABFD.  */
119
120static reloc_howto_type *
121get_howto_table (bfd *abfd)
122{
123  if (vxworks_object_p (abfd))
124    return sh_vxworks_howto_table;
125  return sh_elf_howto_table;
126}
127
128static bfd_reloc_status_type
129sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd,
130		   asection *input_section, bfd_byte *contents,
131		   bfd_vma addr, asection *symbol_section,
132		   bfd_vma start, bfd_vma end)
133{
134  static bfd_vma last_addr;
135  static asection *last_symbol_section;
136  bfd_byte *start_ptr, *ptr, *last_ptr;
137  int diff, cum_diff;
138  bfd_signed_vma x;
139  int insn;
140
141  /* Sanity check the address.  */
142  if (addr > bfd_get_section_limit (input_bfd, input_section))
143    return bfd_reloc_outofrange;
144
145  /* We require the start and end relocations to be processed consecutively -
146     although we allow then to be processed forwards or backwards.  */
147  if (! last_addr)
148    {
149      last_addr = addr;
150      last_symbol_section = symbol_section;
151      return bfd_reloc_ok;
152    }
153  if (last_addr != addr)
154    abort ();
155  last_addr = 0;
156
157  if (! symbol_section || last_symbol_section != symbol_section || end < start)
158    return bfd_reloc_outofrange;
159
160  /* Get the symbol_section contents.  */
161  if (symbol_section != input_section)
162    {
163      if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
164	contents = elf_section_data (symbol_section)->this_hdr.contents;
165      else
166	{
167	  if (!bfd_malloc_and_get_section (input_bfd, symbol_section,
168					   &contents))
169	    {
170	      if (contents != NULL)
171		free (contents);
172	      return bfd_reloc_outofrange;
173	    }
174	}
175    }
176#define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
177  start_ptr = contents + start;
178  for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
179    {
180      for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
181	ptr -= 2;
182      ptr += 2;
183      diff = (last_ptr - ptr) >> 1;
184      cum_diff += diff & 1;
185      cum_diff += diff;
186    }
187  /* Calculate the start / end values to load into rs / re minus four -
188     so that will cancel out the four we would otherwise have to add to
189     addr to get the value to subtract in order to get relative addressing.  */
190  if (cum_diff >= 0)
191    {
192      start -= 4;
193      end = (ptr + cum_diff * 2) - contents;
194    }
195  else
196    {
197      bfd_vma start0 = start - 4;
198
199      while (start0 && IS_PPI (contents + start0))
200	start0 -= 2;
201      start0 = start - 2 - ((start - start0) & 2);
202      start = start0 - cum_diff - 2;
203      end = start0;
204    }
205
206  if (contents != NULL
207      && elf_section_data (symbol_section)->this_hdr.contents != contents)
208    free (contents);
209
210  insn = bfd_get_16 (input_bfd, contents + addr);
211
212  x = (insn & 0x200 ? end : start) - addr;
213  if (input_section != symbol_section)
214    x += ((symbol_section->output_section->vma + symbol_section->output_offset)
215	  - (input_section->output_section->vma
216	     + input_section->output_offset));
217  x >>= 1;
218  if (x < -128 || x > 127)
219    return bfd_reloc_overflow;
220
221  x = (insn & ~0xff) | (x & 0xff);
222  bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
223
224  return bfd_reloc_ok;
225}
226
227/* This function is used for normal relocs.  This used to be like the COFF
228   function, and is almost certainly incorrect for other ELF targets.  */
229
230static bfd_reloc_status_type
231sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
232	      void *data, asection *input_section, bfd *output_bfd,
233	      char **error_message ATTRIBUTE_UNUSED)
234{
235  bfd_vma insn;
236  bfd_vma sym_value;
237  enum elf_sh_reloc_type r_type;
238  bfd_vma addr = reloc_entry->address;
239  bfd_size_type octets = addr * OCTETS_PER_BYTE (abfd, input_section);
240  bfd_byte *hit_data = (bfd_byte *) data + octets;
241
242  r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
243
244  if (output_bfd != NULL)
245    {
246      /* Partial linking--do nothing.  */
247      reloc_entry->address += input_section->output_offset;
248      return bfd_reloc_ok;
249    }
250
251  /* Almost all relocs have to do with relaxing.  If any work must be
252     done for them, it has been done in sh_relax_section.  */
253  if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
254    return bfd_reloc_ok;
255
256  if (symbol_in != NULL
257      && bfd_is_und_section (symbol_in->section))
258    return bfd_reloc_undefined;
259
260  /* PR 17512: file: 9891ca98.  */
261  if (octets + bfd_get_reloc_size (reloc_entry->howto)
262      > bfd_get_section_limit_octets (abfd, input_section))
263    return bfd_reloc_outofrange;
264
265  if (bfd_is_com_section (symbol_in->section))
266    sym_value = 0;
267  else
268    sym_value = (symbol_in->value +
269		 symbol_in->section->output_section->vma +
270		 symbol_in->section->output_offset);
271
272  switch (r_type)
273    {
274    case R_SH_DIR32:
275      insn = bfd_get_32 (abfd, hit_data);
276      insn += sym_value + reloc_entry->addend;
277      bfd_put_32 (abfd, insn, hit_data);
278      break;
279    case R_SH_IND12W:
280      insn = bfd_get_16 (abfd, hit_data);
281      sym_value += reloc_entry->addend;
282      sym_value -= (input_section->output_section->vma
283		    + input_section->output_offset
284		    + addr
285		    + 4);
286      sym_value += (((insn & 0xfff) ^ 0x800) - 0x800) << 1;
287      insn = (insn & 0xf000) | ((sym_value >> 1) & 0xfff);
288      bfd_put_16 (abfd, insn, hit_data);
289      if (sym_value + 0x1000 >= 0x2000 || (sym_value & 1) != 0)
290	return bfd_reloc_overflow;
291      break;
292    default:
293      abort ();
294      break;
295    }
296
297  return bfd_reloc_ok;
298}
299
300/* This function is used for relocs which are only used for relaxing,
301   which the linker should otherwise ignore.  */
302
303static bfd_reloc_status_type
304sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
305		     asymbol *symbol ATTRIBUTE_UNUSED,
306		     void *data ATTRIBUTE_UNUSED, asection *input_section,
307		     bfd *output_bfd,
308		     char **error_message ATTRIBUTE_UNUSED)
309{
310  if (output_bfd != NULL)
311    reloc_entry->address += input_section->output_offset;
312  return bfd_reloc_ok;
313}
314
315/* This structure is used to map BFD reloc codes to SH ELF relocs.  */
316
317struct elf_reloc_map
318{
319  bfd_reloc_code_real_type bfd_reloc_val;
320  unsigned char elf_reloc_val;
321};
322
323/* An array mapping BFD reloc codes to SH ELF relocs.  */
324
325static const struct elf_reloc_map sh_reloc_map[] =
326{
327  { BFD_RELOC_NONE, R_SH_NONE },
328  { BFD_RELOC_32, R_SH_DIR32 },
329  { BFD_RELOC_16, R_SH_DIR16 },
330  { BFD_RELOC_8, R_SH_DIR8 },
331  { BFD_RELOC_CTOR, R_SH_DIR32 },
332  { BFD_RELOC_32_PCREL, R_SH_REL32 },
333  { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
334  { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
335  { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
336  { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
337  { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
338  { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
339  { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
340  { BFD_RELOC_SH_USES, R_SH_USES },
341  { BFD_RELOC_SH_COUNT, R_SH_COUNT },
342  { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
343  { BFD_RELOC_SH_CODE, R_SH_CODE },
344  { BFD_RELOC_SH_DATA, R_SH_DATA },
345  { BFD_RELOC_SH_LABEL, R_SH_LABEL },
346  { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
347  { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
348  { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
349  { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
350  { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 },
351  { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 },
352  { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 },
353  { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 },
354  { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 },
355  { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 },
356  { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 },
357  { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 },
358  { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
359  { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
360  { BFD_RELOC_SH_COPY, R_SH_COPY },
361  { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT },
362  { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT },
363  { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
364  { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
365  { BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
366  { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
367  { BFD_RELOC_SH_GOT20, R_SH_GOT20 },
368  { BFD_RELOC_SH_GOTOFF20, R_SH_GOTOFF20 },
369  { BFD_RELOC_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC },
370  { BFD_RELOC_SH_GOTFUNCDESC20, R_SH_GOTFUNCDESC20 },
371  { BFD_RELOC_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC },
372  { BFD_RELOC_SH_GOTOFFFUNCDESC20, R_SH_GOTOFFFUNCDESC20 },
373  { BFD_RELOC_SH_FUNCDESC, R_SH_FUNCDESC },
374};
375
376/* Given a BFD reloc code, return the howto structure for the
377   corresponding SH ELF reloc.  */
378
379static reloc_howto_type *
380sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
381{
382  unsigned int i;
383
384  for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
385    {
386      if (sh_reloc_map[i].bfd_reloc_val == code)
387	return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val;
388    }
389
390  return NULL;
391}
392
393static reloc_howto_type *
394sh_elf_reloc_name_lookup (bfd *abfd, const char *r_name)
395{
396  unsigned int i;
397
398  if (vxworks_object_p (abfd))
399    {
400      for (i = 0;
401	   i < (sizeof (sh_vxworks_howto_table)
402		/ sizeof (sh_vxworks_howto_table[0]));
403	   i++)
404	if (sh_vxworks_howto_table[i].name != NULL
405	    && strcasecmp (sh_vxworks_howto_table[i].name, r_name) == 0)
406	  return &sh_vxworks_howto_table[i];
407    }
408  else
409    {
410      for (i = 0;
411	   i < (sizeof (sh_elf_howto_table)
412		/ sizeof (sh_elf_howto_table[0]));
413	   i++)
414	if (sh_elf_howto_table[i].name != NULL
415	    && strcasecmp (sh_elf_howto_table[i].name, r_name) == 0)
416	  return &sh_elf_howto_table[i];
417    }
418
419  return NULL;
420}
421
422/* Given an ELF reloc, fill in the howto field of a relent.  */
423
424static bfd_boolean
425sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
426{
427  unsigned int r;
428
429  r = ELF32_R_TYPE (dst->r_info);
430
431  if (r >= R_SH_max
432      || (r >= R_SH_FIRST_INVALID_RELOC   && r <= R_SH_LAST_INVALID_RELOC)
433      || (r >= R_SH_FIRST_INVALID_RELOC_2 && r <= R_SH_LAST_INVALID_RELOC_2)
434      || (r >= R_SH_FIRST_INVALID_RELOC_3 && r <= R_SH_LAST_INVALID_RELOC_3)
435      || (r >= R_SH_FIRST_INVALID_RELOC_4 && r <= R_SH_LAST_INVALID_RELOC_4)
436      || (r >= R_SH_FIRST_INVALID_RELOC_5 && r <= R_SH_LAST_INVALID_RELOC_5)
437      || (r >= R_SH_FIRST_INVALID_RELOC_6 && r <= R_SH_LAST_INVALID_RELOC_6))
438    {
439      /* xgettext:c-format */
440      _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
441			  abfd, r);
442      bfd_set_error (bfd_error_bad_value);
443      return FALSE;
444    }
445
446  cache_ptr->howto = get_howto_table (abfd) + r;
447  return TRUE;
448}
449
450/* This function handles relaxing for SH ELF.  See the corresponding
451   function in coff-sh.c for a description of what this does.  FIXME:
452   There is a lot of duplication here between this code and the COFF
453   specific code.  The format of relocs and symbols is wound deeply
454   into this code, but it would still be better if the duplication
455   could be eliminated somehow.  Note in particular that although both
456   functions use symbols like R_SH_CODE, those symbols have different
457   values; in coff-sh.c they come from include/coff/sh.h, whereas here
458   they come from enum elf_sh_reloc_type in include/elf/sh.h.  */
459
460static bfd_boolean
461sh_elf_relax_section (bfd *abfd, asection *sec,
462		      struct bfd_link_info *link_info, bfd_boolean *again)
463{
464  Elf_Internal_Shdr *symtab_hdr;
465  Elf_Internal_Rela *internal_relocs;
466  bfd_boolean have_code;
467  Elf_Internal_Rela *irel, *irelend;
468  bfd_byte *contents = NULL;
469  Elf_Internal_Sym *isymbuf = NULL;
470
471  *again = FALSE;
472
473  if (bfd_link_relocatable (link_info)
474      || (sec->flags & SEC_RELOC) == 0
475      || sec->reloc_count == 0)
476    return TRUE;
477
478  symtab_hdr = &elf_symtab_hdr (abfd);
479
480  internal_relocs = (_bfd_elf_link_read_relocs
481		     (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
482		      link_info->keep_memory));
483  if (internal_relocs == NULL)
484    goto error_return;
485
486  have_code = FALSE;
487
488  irelend = internal_relocs + sec->reloc_count;
489  for (irel = internal_relocs; irel < irelend; irel++)
490    {
491      bfd_vma laddr, paddr, symval;
492      unsigned short insn;
493      Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
494      bfd_signed_vma foff;
495
496      if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
497	have_code = TRUE;
498
499      if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
500	continue;
501
502      /* Get the section contents.  */
503      if (contents == NULL)
504	{
505	  if (elf_section_data (sec)->this_hdr.contents != NULL)
506	    contents = elf_section_data (sec)->this_hdr.contents;
507	  else
508	    {
509	      if (!bfd_malloc_and_get_section (abfd, sec, &contents))
510		goto error_return;
511	    }
512	}
513
514      /* The r_addend field of the R_SH_USES reloc will point us to
515	 the register load.  The 4 is because the r_addend field is
516	 computed as though it were a jump offset, which are based
517	 from 4 bytes after the jump instruction.  */
518      laddr = irel->r_offset + 4 + irel->r_addend;
519      if (laddr >= sec->size)
520	{
521	  /* xgettext:c-format */
522	  _bfd_error_handler
523	    (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES offset"),
524	     abfd, (uint64_t) irel->r_offset);
525	  continue;
526	}
527      insn = bfd_get_16 (abfd, contents + laddr);
528
529      /* If the instruction is not mov.l NN,rN, we don't know what to
530	 do.  */
531      if ((insn & 0xf000) != 0xd000)
532	{
533	  _bfd_error_handler
534	    /* xgettext:c-format */
535	    (_("%pB: %#" PRIx64 ": warning: "
536	       "R_SH_USES points to unrecognized insn 0x%x"),
537	     abfd, (uint64_t) irel->r_offset, insn);
538	  continue;
539	}
540
541      /* Get the address from which the register is being loaded.  The
542	 displacement in the mov.l instruction is quadrupled.  It is a
543	 displacement from four bytes after the movl instruction, but,
544	 before adding in the PC address, two least significant bits
545	 of the PC are cleared.  We assume that the section is aligned
546	 on a four byte boundary.  */
547      paddr = insn & 0xff;
548      paddr *= 4;
549      paddr += (laddr + 4) &~ (bfd_vma) 3;
550      if (paddr >= sec->size)
551	{
552	  _bfd_error_handler
553	    /* xgettext:c-format */
554	    (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES load offset"),
555	     abfd, (uint64_t) irel->r_offset);
556	  continue;
557	}
558
559      /* Get the reloc for the address from which the register is
560	 being loaded.  This reloc will tell us which function is
561	 actually being called.  */
562      for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
563	if (irelfn->r_offset == paddr
564	    && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
565	  break;
566      if (irelfn >= irelend)
567	{
568	  _bfd_error_handler
569	    /* xgettext:c-format */
570	    (_("%pB: %#" PRIx64 ": warning: could not find expected reloc"),
571	     abfd, (uint64_t) paddr);
572	  continue;
573	}
574
575      /* Read this BFD's symbols if we haven't done so already.  */
576      if (isymbuf == NULL && symtab_hdr->sh_info != 0)
577	{
578	  isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
579	  if (isymbuf == NULL)
580	    isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
581					    symtab_hdr->sh_info, 0,
582					    NULL, NULL, NULL);
583	  if (isymbuf == NULL)
584	    goto error_return;
585	}
586
587      /* Get the value of the symbol referred to by the reloc.  */
588      if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
589	{
590	  /* A local symbol.  */
591	  Elf_Internal_Sym *isym;
592
593	  isym = isymbuf + ELF32_R_SYM (irelfn->r_info);
594	  if (isym->st_shndx
595	      != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
596	    {
597	      _bfd_error_handler
598		/* xgettext:c-format */
599		(_("%pB: %#" PRIx64 ": warning: symbol in unexpected section"),
600		 abfd, (uint64_t) paddr);
601	      continue;
602	    }
603
604	  symval = (isym->st_value
605		    + sec->output_section->vma
606		    + sec->output_offset);
607	}
608      else
609	{
610	  unsigned long indx;
611	  struct elf_link_hash_entry *h;
612
613	  indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
614	  h = elf_sym_hashes (abfd)[indx];
615	  BFD_ASSERT (h != NULL);
616	  if (h->root.type != bfd_link_hash_defined
617	      && h->root.type != bfd_link_hash_defweak)
618	    {
619	      /* This appears to be a reference to an undefined
620		 symbol.  Just ignore it--it will be caught by the
621		 regular reloc processing.  */
622	      continue;
623	    }
624
625	  symval = (h->root.u.def.value
626		    + h->root.u.def.section->output_section->vma
627		    + h->root.u.def.section->output_offset);
628	}
629
630      if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
631	symval += bfd_get_32 (abfd, contents + paddr);
632      else
633	symval += irelfn->r_addend;
634
635      /* See if this function call can be shortened.  */
636      foff = (symval
637	      - (irel->r_offset
638		 + sec->output_section->vma
639		 + sec->output_offset
640		 + 4));
641      /* A branch to an address beyond ours might be increased by an
642	 .align that doesn't move when bytes behind us are deleted.
643	 So, we add some slop in this calculation to allow for
644	 that.  */
645      if (foff < -0x1000 || foff >= 0x1000 - 8)
646	{
647	  /* After all that work, we can't shorten this function call.  */
648	  continue;
649	}
650
651      /* Shorten the function call.  */
652
653      /* For simplicity of coding, we are going to modify the section
654	 contents, the section relocs, and the BFD symbol table.  We
655	 must tell the rest of the code not to free up this
656	 information.  It would be possible to instead create a table
657	 of changes which have to be made, as is done in coff-mips.c;
658	 that would be more work, but would require less memory when
659	 the linker is run.  */
660
661      elf_section_data (sec)->relocs = internal_relocs;
662      elf_section_data (sec)->this_hdr.contents = contents;
663      symtab_hdr->contents = (unsigned char *) isymbuf;
664
665      /* Replace the jmp/jsr with a bra/bsr.  */
666
667      /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
668	 replace the jmp/jsr with a bra/bsr.  */
669      irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
670      /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
671	 here, but that only checks if the symbol is an external symbol,
672	 not if the symbol is in a different section.  Besides, we need
673	 a consistent meaning for the relocation, so we just assume here that
674	 the value of the symbol is not available.  */
675
676      /* We can't fully resolve this yet, because the external
677	 symbol value may be changed by future relaxing.  We let
678	 the final link phase handle it.  */
679      if (bfd_get_16 (abfd, contents + irel->r_offset) & 0x0020)
680	bfd_put_16 (abfd, (bfd_vma) 0xa000, contents + irel->r_offset);
681      else
682	bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
683
684      irel->r_addend = -4;
685
686      /* When we calculated the symbol "value" we had an offset in the
687	 DIR32's word in memory (we read and add it above).  However,
688	 the jsr we create does NOT have this offset encoded, so we
689	 have to add it to the addend to preserve it.  */
690      irel->r_addend += bfd_get_32 (abfd, contents + paddr);
691
692      /* See if there is another R_SH_USES reloc referring to the same
693	 register load.  */
694      for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
695	if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
696	    && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
697	  break;
698      if (irelscan < irelend)
699	{
700	  /* Some other function call depends upon this register load,
701	     and we have not yet converted that function call.
702	     Indeed, we may never be able to convert it.  There is
703	     nothing else we can do at this point.  */
704	  continue;
705	}
706
707      /* Look for a R_SH_COUNT reloc on the location where the
708	 function address is stored.  Do this before deleting any
709	 bytes, to avoid confusion about the address.  */
710      for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
711	if (irelcount->r_offset == paddr
712	    && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
713	  break;
714
715      /* Delete the register load.  */
716      if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
717	goto error_return;
718
719      /* That will change things, so, just in case it permits some
720	 other function call to come within range, we should relax
721	 again.  Note that this is not required, and it may be slow.  */
722      *again = TRUE;
723
724      /* Now check whether we got a COUNT reloc.  */
725      if (irelcount >= irelend)
726	{
727	  _bfd_error_handler
728	    /* xgettext:c-format */
729	    (_("%pB: %#" PRIx64 ": warning: "
730	       "could not find expected COUNT reloc"),
731	     abfd, (uint64_t) paddr);
732	  continue;
733	}
734
735      /* The number of uses is stored in the r_addend field.  We've
736	 just deleted one.  */
737      if (irelcount->r_addend == 0)
738	{
739	  /* xgettext:c-format */
740	  _bfd_error_handler (_("%pB: %#" PRIx64 ": warning: bad count"),
741			      abfd, (uint64_t) paddr);
742	  continue;
743	}
744
745      --irelcount->r_addend;
746
747      /* If there are no more uses, we can delete the address.  Reload
748	 the address from irelfn, in case it was changed by the
749	 previous call to sh_elf_relax_delete_bytes.  */
750      if (irelcount->r_addend == 0)
751	{
752	  if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
753	    goto error_return;
754	}
755
756      /* We've done all we can with that function call.  */
757    }
758
759  /* Look for load and store instructions that we can align on four
760     byte boundaries.  */
761  if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4
762      && have_code)
763    {
764      bfd_boolean swapped;
765
766      /* Get the section contents.  */
767      if (contents == NULL)
768	{
769	  if (elf_section_data (sec)->this_hdr.contents != NULL)
770	    contents = elf_section_data (sec)->this_hdr.contents;
771	  else
772	    {
773	      if (!bfd_malloc_and_get_section (abfd, sec, &contents))
774		goto error_return;
775	    }
776	}
777
778      if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
779				&swapped))
780	goto error_return;
781
782      if (swapped)
783	{
784	  elf_section_data (sec)->relocs = internal_relocs;
785	  elf_section_data (sec)->this_hdr.contents = contents;
786	  symtab_hdr->contents = (unsigned char *) isymbuf;
787	}
788    }
789
790  if (isymbuf != NULL
791      && symtab_hdr->contents != (unsigned char *) isymbuf)
792    {
793      if (! link_info->keep_memory)
794	free (isymbuf);
795      else
796	{
797	  /* Cache the symbols for elf_link_input_bfd.  */
798	  symtab_hdr->contents = (unsigned char *) isymbuf;
799	}
800    }
801
802  if (contents != NULL
803      && elf_section_data (sec)->this_hdr.contents != contents)
804    {
805      if (! link_info->keep_memory)
806	free (contents);
807      else
808	{
809	  /* Cache the section contents for elf_link_input_bfd.  */
810	  elf_section_data (sec)->this_hdr.contents = contents;
811	}
812    }
813
814  if (internal_relocs != NULL
815      && elf_section_data (sec)->relocs != internal_relocs)
816    free (internal_relocs);
817
818  return TRUE;
819
820 error_return:
821  if (isymbuf != NULL
822      && symtab_hdr->contents != (unsigned char *) isymbuf)
823    free (isymbuf);
824  if (contents != NULL
825      && elf_section_data (sec)->this_hdr.contents != contents)
826    free (contents);
827  if (internal_relocs != NULL
828      && elf_section_data (sec)->relocs != internal_relocs)
829    free (internal_relocs);
830
831  return FALSE;
832}
833
834/* Delete some bytes from a section while relaxing.  FIXME: There is a
835   lot of duplication between this function and sh_relax_delete_bytes
836   in coff-sh.c.  */
837
838static bfd_boolean
839sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr,
840			   int count)
841{
842  Elf_Internal_Shdr *symtab_hdr;
843  unsigned int sec_shndx;
844  bfd_byte *contents;
845  Elf_Internal_Rela *irel, *irelend;
846  Elf_Internal_Rela *irelalign;
847  bfd_vma toaddr;
848  Elf_Internal_Sym *isymbuf, *isym, *isymend;
849  struct elf_link_hash_entry **sym_hashes;
850  struct elf_link_hash_entry **end_hashes;
851  unsigned int symcount;
852  asection *o;
853
854  symtab_hdr = &elf_symtab_hdr (abfd);
855  isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
856
857  sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
858
859  contents = elf_section_data (sec)->this_hdr.contents;
860
861  /* The deletion must stop at the next ALIGN reloc for an alignment
862     power larger than the number of bytes we are deleting.  */
863
864  irelalign = NULL;
865  toaddr = sec->size;
866
867  irel = elf_section_data (sec)->relocs;
868  irelend = irel + sec->reloc_count;
869  for (; irel < irelend; irel++)
870    {
871      if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
872	  && irel->r_offset > addr
873	  && count < (1 << irel->r_addend))
874	{
875	  irelalign = irel;
876	  toaddr = irel->r_offset;
877	  break;
878	}
879    }
880
881  /* Actually delete the bytes.  */
882  memmove (contents + addr, contents + addr + count,
883	   (size_t) (toaddr - addr - count));
884  if (irelalign == NULL)
885    sec->size -= count;
886  else
887    {
888      int i;
889
890#define NOP_OPCODE (0x0009)
891
892      BFD_ASSERT ((count & 1) == 0);
893      for (i = 0; i < count; i += 2)
894	bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
895    }
896
897  /* Adjust all the relocs.  */
898  for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
899    {
900      bfd_vma nraddr, stop;
901      bfd_vma start = 0;
902      int insn = 0;
903      int off, adjust, oinsn;
904      bfd_signed_vma voff = 0;
905      bfd_boolean overflow;
906
907      /* Get the new reloc address.  */
908      nraddr = irel->r_offset;
909      if ((irel->r_offset > addr
910	   && irel->r_offset < toaddr)
911	  || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
912	      && irel->r_offset == toaddr))
913	nraddr -= count;
914
915      /* See if this reloc was for the bytes we have deleted, in which
916	 case we no longer care about it.  Don't delete relocs which
917	 represent addresses, though.  */
918      if (irel->r_offset >= addr
919	  && irel->r_offset < addr + count
920	  && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
921	  && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
922	  && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
923	  && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
924	irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
925				     (int) R_SH_NONE);
926
927      /* If this is a PC relative reloc, see if the range it covers
928	 includes the bytes we have deleted.  */
929      switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
930	{
931	default:
932	  break;
933
934	case R_SH_DIR8WPN:
935	case R_SH_IND12W:
936	case R_SH_DIR8WPZ:
937	case R_SH_DIR8WPL:
938	  start = irel->r_offset;
939	  insn = bfd_get_16 (abfd, contents + nraddr);
940	  break;
941	}
942
943      switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
944	{
945	default:
946	  start = stop = addr;
947	  break;
948
949	case R_SH_DIR32:
950	  /* If this reloc is against a symbol defined in this
951	     section, and the symbol will not be adjusted below, we
952	     must check the addend to see it will put the value in
953	     range to be adjusted, and hence must be changed.  */
954	  if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
955	    {
956	      isym = isymbuf + ELF32_R_SYM (irel->r_info);
957	      if (isym->st_shndx == sec_shndx
958		  && (isym->st_value <= addr
959		      || isym->st_value >= toaddr))
960		{
961		  bfd_vma val;
962
963		  if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
964		    {
965		      val = bfd_get_32 (abfd, contents + nraddr);
966		      val += isym->st_value;
967		      if (val > addr && val < toaddr)
968			bfd_put_32 (abfd, val - count, contents + nraddr);
969		    }
970		  else
971		    {
972		      val = isym->st_value + irel->r_addend;
973		      if (val > addr && val < toaddr)
974			irel->r_addend -= count;
975		    }
976		}
977	    }
978	  start = stop = addr;
979	  break;
980
981	case R_SH_DIR8WPN:
982	  off = insn & 0xff;
983	  if (off & 0x80)
984	    off -= 0x100;
985	  stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
986	  break;
987
988	case R_SH_IND12W:
989	  off = insn & 0xfff;
990	  if (! off)
991	    {
992	      /* This has been made by previous relaxation.  Since the
993		 relocation will be against an external symbol, the
994		 final relocation will just do the right thing.  */
995	      start = stop = addr;
996	    }
997	  else
998	    {
999	      if (off & 0x800)
1000		off -= 0x1000;
1001	      stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
1002
1003	      /* The addend will be against the section symbol, thus
1004		 for adjusting the addend, the relevant start is the
1005		 start of the section.
1006		 N.B. If we want to abandon in-place changes here and
1007		 test directly using symbol + addend, we have to take into
1008		 account that the addend has already been adjusted by -4.  */
1009	      if (stop > addr && stop < toaddr)
1010		irel->r_addend -= count;
1011	    }
1012	  break;
1013
1014	case R_SH_DIR8WPZ:
1015	  off = insn & 0xff;
1016	  stop = start + 4 + off * 2;
1017	  break;
1018
1019	case R_SH_DIR8WPL:
1020	  off = insn & 0xff;
1021	  stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
1022	  break;
1023
1024	case R_SH_SWITCH8:
1025	case R_SH_SWITCH16:
1026	case R_SH_SWITCH32:
1027	  /* These relocs types represent
1028	       .word L2-L1
1029	     The r_addend field holds the difference between the reloc
1030	     address and L1.  That is the start of the reloc, and
1031	     adding in the contents gives us the top.  We must adjust
1032	     both the r_offset field and the section contents.
1033	     N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
1034	     and the elf bfd r_offset is called r_vaddr.  */
1035
1036	  stop = irel->r_offset;
1037	  start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
1038
1039	  if (start > addr
1040	      && start < toaddr
1041	      && (stop <= addr || stop >= toaddr))
1042	    irel->r_addend += count;
1043	  else if (stop > addr
1044		   && stop < toaddr
1045		   && (start <= addr || start >= toaddr))
1046	    irel->r_addend -= count;
1047
1048	  if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
1049	    voff = bfd_get_signed_16 (abfd, contents + nraddr);
1050	  else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
1051	    voff = bfd_get_8 (abfd, contents + nraddr);
1052	  else
1053	    voff = bfd_get_signed_32 (abfd, contents + nraddr);
1054	  stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1055
1056	  break;
1057
1058	case R_SH_USES:
1059	  start = irel->r_offset;
1060	  stop = (bfd_vma) ((bfd_signed_vma) start
1061			    + (long) irel->r_addend
1062			    + 4);
1063	  break;
1064	}
1065
1066      if (start > addr
1067	  && start < toaddr
1068	  && (stop <= addr || stop >= toaddr))
1069	adjust = count;
1070      else if (stop > addr
1071	       && stop < toaddr
1072	       && (start <= addr || start >= toaddr))
1073	adjust = - count;
1074      else
1075	adjust = 0;
1076
1077      if (adjust != 0)
1078	{
1079	  oinsn = insn;
1080	  overflow = FALSE;
1081	  switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
1082	    {
1083	    default:
1084	      abort ();
1085	      break;
1086
1087	    case R_SH_DIR8WPN:
1088	    case R_SH_DIR8WPZ:
1089	      insn += adjust / 2;
1090	      if ((oinsn & 0xff00) != (insn & 0xff00))
1091		overflow = TRUE;
1092	      bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1093	      break;
1094
1095	    case R_SH_IND12W:
1096	      insn += adjust / 2;
1097	      if ((oinsn & 0xf000) != (insn & 0xf000))
1098		overflow = TRUE;
1099	      bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1100	      break;
1101
1102	    case R_SH_DIR8WPL:
1103	      BFD_ASSERT (adjust == count || count >= 4);
1104	      if (count >= 4)
1105		insn += adjust / 4;
1106	      else
1107		{
1108		  if ((irel->r_offset & 3) == 0)
1109		    ++insn;
1110		}
1111	      if ((oinsn & 0xff00) != (insn & 0xff00))
1112		overflow = TRUE;
1113	      bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1114	      break;
1115
1116	    case R_SH_SWITCH8:
1117	      voff += adjust;
1118	      if (voff < 0 || voff >= 0xff)
1119		overflow = TRUE;
1120	      bfd_put_8 (abfd, voff, contents + nraddr);
1121	      break;
1122
1123	    case R_SH_SWITCH16:
1124	      voff += adjust;
1125	      if (voff < - 0x8000 || voff >= 0x8000)
1126		overflow = TRUE;
1127	      bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
1128	      break;
1129
1130	    case R_SH_SWITCH32:
1131	      voff += adjust;
1132	      bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
1133	      break;
1134
1135	    case R_SH_USES:
1136	      irel->r_addend += adjust;
1137	      break;
1138	    }
1139
1140	  if (overflow)
1141	    {
1142	      _bfd_error_handler
1143		/* xgettext:c-format */
1144		(_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1145		 abfd, (uint64_t) irel->r_offset);
1146	      bfd_set_error (bfd_error_bad_value);
1147	      return FALSE;
1148	    }
1149	}
1150
1151      irel->r_offset = nraddr;
1152    }
1153
1154  /* Look through all the other sections.  If there contain any IMM32
1155     relocs against internal symbols which we are not going to adjust
1156     below, we may need to adjust the addends.  */
1157  for (o = abfd->sections; o != NULL; o = o->next)
1158    {
1159      Elf_Internal_Rela *internal_relocs;
1160      Elf_Internal_Rela *irelscan, *irelscanend;
1161      bfd_byte *ocontents;
1162
1163      if (o == sec
1164	  || (o->flags & SEC_RELOC) == 0
1165	  || o->reloc_count == 0)
1166	continue;
1167
1168      /* We always cache the relocs.  Perhaps, if info->keep_memory is
1169	 FALSE, we should free them, if we are permitted to, when we
1170	 leave sh_coff_relax_section.  */
1171      internal_relocs = (_bfd_elf_link_read_relocs
1172			 (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE));
1173      if (internal_relocs == NULL)
1174	return FALSE;
1175
1176      ocontents = NULL;
1177      irelscanend = internal_relocs + o->reloc_count;
1178      for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
1179	{
1180	  /* Dwarf line numbers use R_SH_SWITCH32 relocs.  */
1181	  if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
1182	    {
1183	      bfd_vma start, stop;
1184	      bfd_signed_vma voff;
1185
1186	      if (ocontents == NULL)
1187		{
1188		  if (elf_section_data (o)->this_hdr.contents != NULL)
1189		    ocontents = elf_section_data (o)->this_hdr.contents;
1190		  else
1191		    {
1192		      /* We always cache the section contents.
1193			 Perhaps, if info->keep_memory is FALSE, we
1194			 should free them, if we are permitted to,
1195			 when we leave sh_coff_relax_section.  */
1196		      if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1197			{
1198			  if (ocontents != NULL)
1199			    free (ocontents);
1200			  return FALSE;
1201			}
1202
1203		      elf_section_data (o)->this_hdr.contents = ocontents;
1204		    }
1205		}
1206
1207	      stop = irelscan->r_offset;
1208	      start
1209		= (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
1210
1211	      /* STOP is in a different section, so it won't change.  */
1212	      if (start > addr && start < toaddr)
1213		irelscan->r_addend += count;
1214
1215	      voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
1216	      stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1217
1218	      if (start > addr
1219		  && start < toaddr
1220		  && (stop <= addr || stop >= toaddr))
1221		bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
1222				   ocontents + irelscan->r_offset);
1223	      else if (stop > addr
1224		       && stop < toaddr
1225		       && (start <= addr || start >= toaddr))
1226		bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
1227				   ocontents + irelscan->r_offset);
1228	    }
1229
1230	  if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
1231	    continue;
1232
1233	  if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
1234	    continue;
1235
1236
1237	  isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
1238	  if (isym->st_shndx == sec_shndx
1239	      && (isym->st_value <= addr
1240		  || isym->st_value >= toaddr))
1241	    {
1242	      bfd_vma val;
1243
1244	      if (ocontents == NULL)
1245		{
1246		  if (elf_section_data (o)->this_hdr.contents != NULL)
1247		    ocontents = elf_section_data (o)->this_hdr.contents;
1248		  else
1249		    {
1250		      /* We always cache the section contents.
1251			 Perhaps, if info->keep_memory is FALSE, we
1252			 should free them, if we are permitted to,
1253			 when we leave sh_coff_relax_section.  */
1254		      if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1255			{
1256			  if (ocontents != NULL)
1257			    free (ocontents);
1258			  return FALSE;
1259			}
1260
1261		      elf_section_data (o)->this_hdr.contents = ocontents;
1262		    }
1263		}
1264
1265	      val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
1266	      val += isym->st_value;
1267	      if (val > addr && val < toaddr)
1268		bfd_put_32 (abfd, val - count,
1269			    ocontents + irelscan->r_offset);
1270	    }
1271	}
1272    }
1273
1274  /* Adjust the local symbols defined in this section.  */
1275  isymend = isymbuf + symtab_hdr->sh_info;
1276  for (isym = isymbuf; isym < isymend; isym++)
1277    {
1278      if (isym->st_shndx == sec_shndx
1279	  && isym->st_value > addr
1280	  && isym->st_value < toaddr)
1281	isym->st_value -= count;
1282    }
1283
1284  /* Now adjust the global symbols defined in this section.  */
1285  symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1286	      - symtab_hdr->sh_info);
1287  sym_hashes = elf_sym_hashes (abfd);
1288  end_hashes = sym_hashes + symcount;
1289  for (; sym_hashes < end_hashes; sym_hashes++)
1290    {
1291      struct elf_link_hash_entry *sym_hash = *sym_hashes;
1292      if ((sym_hash->root.type == bfd_link_hash_defined
1293	   || sym_hash->root.type == bfd_link_hash_defweak)
1294	  && sym_hash->root.u.def.section == sec
1295	  && sym_hash->root.u.def.value > addr
1296	  && sym_hash->root.u.def.value < toaddr)
1297	{
1298	  sym_hash->root.u.def.value -= count;
1299	}
1300    }
1301
1302  /* See if we can move the ALIGN reloc forward.  We have adjusted
1303     r_offset for it already.  */
1304  if (irelalign != NULL)
1305    {
1306      bfd_vma alignto, alignaddr;
1307
1308      alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
1309      alignaddr = BFD_ALIGN (irelalign->r_offset,
1310			     1 << irelalign->r_addend);
1311      if (alignto != alignaddr)
1312	{
1313	  /* Tail recursion.  */
1314	  return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
1315					    (int) (alignto - alignaddr));
1316	}
1317    }
1318
1319  return TRUE;
1320}
1321
1322/* Look for loads and stores which we can align to four byte
1323   boundaries.  This is like sh_align_loads in coff-sh.c.  */
1324
1325static bfd_boolean
1326sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
1327		    Elf_Internal_Rela *internal_relocs,
1328		    bfd_byte *contents ATTRIBUTE_UNUSED,
1329		    bfd_boolean *pswapped)
1330{
1331  Elf_Internal_Rela *irel, *irelend;
1332  bfd_vma *labels = NULL;
1333  bfd_vma *label, *label_end;
1334  bfd_size_type amt;
1335
1336  *pswapped = FALSE;
1337
1338  irelend = internal_relocs + sec->reloc_count;
1339
1340  /* Get all the addresses with labels on them.  */
1341  amt = sec->reloc_count;
1342  amt *= sizeof (bfd_vma);
1343  labels = (bfd_vma *) bfd_malloc (amt);
1344  if (labels == NULL)
1345    goto error_return;
1346  label_end = labels;
1347  for (irel = internal_relocs; irel < irelend; irel++)
1348    {
1349      if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
1350	{
1351	  *label_end = irel->r_offset;
1352	  ++label_end;
1353	}
1354    }
1355
1356  /* Note that the assembler currently always outputs relocs in
1357     address order.  If that ever changes, this code will need to sort
1358     the label values and the relocs.  */
1359
1360  label = labels;
1361
1362  for (irel = internal_relocs; irel < irelend; irel++)
1363    {
1364      bfd_vma start, stop;
1365
1366      if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
1367	continue;
1368
1369      start = irel->r_offset;
1370
1371      for (irel++; irel < irelend; irel++)
1372	if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
1373	  break;
1374      if (irel < irelend)
1375	stop = irel->r_offset;
1376      else
1377	stop = sec->size;
1378
1379      if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
1380				     internal_relocs, &label,
1381				     label_end, start, stop, pswapped))
1382	goto error_return;
1383    }
1384
1385  free (labels);
1386
1387  return TRUE;
1388
1389 error_return:
1390  if (labels != NULL)
1391    free (labels);
1392  return FALSE;
1393}
1394
1395/* Swap two SH instructions.  This is like sh_swap_insns in coff-sh.c.  */
1396
1397static bfd_boolean
1398sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs,
1399		   bfd_byte *contents, bfd_vma addr)
1400{
1401  Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
1402  unsigned short i1, i2;
1403  Elf_Internal_Rela *irel, *irelend;
1404
1405  /* Swap the instructions themselves.  */
1406  i1 = bfd_get_16 (abfd, contents + addr);
1407  i2 = bfd_get_16 (abfd, contents + addr + 2);
1408  bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
1409  bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
1410
1411  /* Adjust all reloc addresses.  */
1412  irelend = internal_relocs + sec->reloc_count;
1413  for (irel = internal_relocs; irel < irelend; irel++)
1414    {
1415      enum elf_sh_reloc_type type;
1416      int add;
1417
1418      /* There are a few special types of relocs that we don't want to
1419	 adjust.  These relocs do not apply to the instruction itself,
1420	 but are only associated with the address.  */
1421      type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
1422      if (type == R_SH_ALIGN
1423	  || type == R_SH_CODE
1424	  || type == R_SH_DATA
1425	  || type == R_SH_LABEL)
1426	continue;
1427
1428      /* If an R_SH_USES reloc points to one of the addresses being
1429	 swapped, we must adjust it.  It would be incorrect to do this
1430	 for a jump, though, since we want to execute both
1431	 instructions after the jump.  (We have avoided swapping
1432	 around a label, so the jump will not wind up executing an
1433	 instruction it shouldn't).  */
1434      if (type == R_SH_USES)
1435	{
1436	  bfd_vma off;
1437
1438	  off = irel->r_offset + 4 + irel->r_addend;
1439	  if (off == addr)
1440	    irel->r_offset += 2;
1441	  else if (off == addr + 2)
1442	    irel->r_offset -= 2;
1443	}
1444
1445      if (irel->r_offset == addr)
1446	{
1447	  irel->r_offset += 2;
1448	  add = -2;
1449	}
1450      else if (irel->r_offset == addr + 2)
1451	{
1452	  irel->r_offset -= 2;
1453	  add = 2;
1454	}
1455      else
1456	add = 0;
1457
1458      if (add != 0)
1459	{
1460	  bfd_byte *loc;
1461	  unsigned short insn, oinsn;
1462	  bfd_boolean overflow;
1463
1464	  loc = contents + irel->r_offset;
1465	  overflow = FALSE;
1466	  switch (type)
1467	    {
1468	    default:
1469	      break;
1470
1471	    case R_SH_DIR8WPN:
1472	    case R_SH_DIR8WPZ:
1473	      insn = bfd_get_16 (abfd, loc);
1474	      oinsn = insn;
1475	      insn += add / 2;
1476	      if ((oinsn & 0xff00) != (insn & 0xff00))
1477		overflow = TRUE;
1478	      bfd_put_16 (abfd, (bfd_vma) insn, loc);
1479	      break;
1480
1481	    case R_SH_IND12W:
1482	      insn = bfd_get_16 (abfd, loc);
1483	      oinsn = insn;
1484	      insn += add / 2;
1485	      if ((oinsn & 0xf000) != (insn & 0xf000))
1486		overflow = TRUE;
1487	      bfd_put_16 (abfd, (bfd_vma) insn, loc);
1488	      break;
1489
1490	    case R_SH_DIR8WPL:
1491	      /* This reloc ignores the least significant 3 bits of
1492		 the program counter before adding in the offset.
1493		 This means that if ADDR is at an even address, the
1494		 swap will not affect the offset.  If ADDR is an at an
1495		 odd address, then the instruction will be crossing a
1496		 four byte boundary, and must be adjusted.  */
1497	      if ((addr & 3) != 0)
1498		{
1499		  insn = bfd_get_16 (abfd, loc);
1500		  oinsn = insn;
1501		  insn += add / 2;
1502		  if ((oinsn & 0xff00) != (insn & 0xff00))
1503		    overflow = TRUE;
1504		  bfd_put_16 (abfd, (bfd_vma) insn, loc);
1505		}
1506
1507	      break;
1508	    }
1509
1510	  if (overflow)
1511	    {
1512	      _bfd_error_handler
1513		/* xgettext:c-format */
1514		(_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1515		 abfd, (uint64_t) irel->r_offset);
1516	      bfd_set_error (bfd_error_bad_value);
1517	      return FALSE;
1518	    }
1519	}
1520    }
1521
1522  return TRUE;
1523}
1524
1525/* Describes one of the various PLT styles.  */
1526
1527struct elf_sh_plt_info
1528{
1529  /* The template for the first PLT entry, or NULL if there is no special
1530     first entry.  */
1531  const bfd_byte *plt0_entry;
1532
1533  /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL.  */
1534  bfd_vma plt0_entry_size;
1535
1536  /* Index I is the offset into PLT0_ENTRY of a pointer to
1537     _GLOBAL_OFFSET_TABLE_ + I * 4.  The value is MINUS_ONE
1538     if there is no such pointer.  */
1539  bfd_vma plt0_got_fields[3];
1540
1541  /* The template for a symbol's PLT entry.  */
1542  const bfd_byte *symbol_entry;
1543
1544  /* The size of SYMBOL_ENTRY in bytes.  */
1545  bfd_vma symbol_entry_size;
1546
1547  /* Byte offsets of fields in SYMBOL_ENTRY.  Not all fields are used
1548     on all targets.  The comments by each member indicate the value
1549     that the field must hold.  */
1550  struct {
1551    bfd_vma got_entry; /* the address of the symbol's .got.plt entry */
1552    bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */
1553    bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */
1554    bfd_boolean got20; /* TRUE if got_entry points to a movi20
1555			  instruction (instead of a constant pool
1556			  entry).  */
1557  } symbol_fields;
1558
1559  /* The offset of the resolver stub from the start of SYMBOL_ENTRY.  */
1560  bfd_vma symbol_resolve_offset;
1561
1562  /* A different PLT layout which can be used for the first
1563     MAX_SHORT_PLT entries.  It must share the same plt0.  NULL in
1564     other cases.  */
1565  const struct elf_sh_plt_info *short_plt;
1566};
1567
1568/* The size in bytes of an entry in the procedure linkage table.  */
1569
1570#define ELF_PLT_ENTRY_SIZE 28
1571
1572/* First entry in an absolute procedure linkage table look like this.  */
1573
1574/* Note - this code has been "optimised" not to use r2.  r2 is used by
1575   GCC to return the address of large structures, so it should not be
1576   corrupted here.  This does mean however, that this PLT does not conform
1577   to the SH PIC ABI.  That spec says that r0 contains the type of the PLT
1578   and r2 contains the GOT id.  This version stores the GOT id in r0 and
1579   ignores the type.  Loaders can easily detect this difference however,
1580   since the type will always be 0 or 8, and the GOT ids will always be
1581   greater than or equal to 12.  */
1582static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
1583{
1584  0xd0, 0x05,	/* mov.l 2f,r0 */
1585  0x60, 0x02,	/* mov.l @r0,r0 */
1586  0x2f, 0x06,	/* mov.l r0,@-r15 */
1587  0xd0, 0x03,	/* mov.l 1f,r0 */
1588  0x60, 0x02,	/* mov.l @r0,r0 */
1589  0x40, 0x2b,	/* jmp @r0 */
1590  0x60, 0xf6,	/*  mov.l @r15+,r0 */
1591  0x00, 0x09,	/* nop */
1592  0x00, 0x09,	/* nop */
1593  0x00, 0x09,	/* nop */
1594  0, 0, 0, 0,	/* 1: replaced with address of .got.plt + 8.  */
1595  0, 0, 0, 0,	/* 2: replaced with address of .got.plt + 4.  */
1596};
1597
1598static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
1599{
1600  0x05, 0xd0,	/* mov.l 2f,r0 */
1601  0x02, 0x60,	/* mov.l @r0,r0 */
1602  0x06, 0x2f,	/* mov.l r0,@-r15 */
1603  0x03, 0xd0,	/* mov.l 1f,r0 */
1604  0x02, 0x60,	/* mov.l @r0,r0 */
1605  0x2b, 0x40,	/* jmp @r0 */
1606  0xf6, 0x60,	/*  mov.l @r15+,r0 */
1607  0x09, 0x00,	/* nop */
1608  0x09, 0x00,	/* nop */
1609  0x09, 0x00,	/* nop */
1610  0, 0, 0, 0,	/* 1: replaced with address of .got.plt + 8.  */
1611  0, 0, 0, 0,	/* 2: replaced with address of .got.plt + 4.  */
1612};
1613
1614/* Sebsequent entries in an absolute procedure linkage table look like
1615   this.  */
1616
1617static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
1618{
1619  0xd0, 0x04,	/* mov.l 1f,r0 */
1620  0x60, 0x02,	/* mov.l @(r0,r12),r0 */
1621  0xd1, 0x02,	/* mov.l 0f,r1 */
1622  0x40, 0x2b,   /* jmp @r0 */
1623  0x60, 0x13,	/*  mov r1,r0 */
1624  0xd1, 0x03,	/* mov.l 2f,r1 */
1625  0x40, 0x2b,	/* jmp @r0 */
1626  0x00, 0x09,	/* nop */
1627  0, 0, 0, 0,	/* 0: replaced with address of .PLT0.  */
1628  0, 0, 0, 0,	/* 1: replaced with address of this symbol in .got.  */
1629  0, 0, 0, 0,	/* 2: replaced with offset into relocation table.  */
1630};
1631
1632static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
1633{
1634  0x04, 0xd0,	/* mov.l 1f,r0 */
1635  0x02, 0x60,	/* mov.l @r0,r0 */
1636  0x02, 0xd1,	/* mov.l 0f,r1 */
1637  0x2b, 0x40,   /* jmp @r0 */
1638  0x13, 0x60,	/*  mov r1,r0 */
1639  0x03, 0xd1,	/* mov.l 2f,r1 */
1640  0x2b, 0x40,	/* jmp @r0 */
1641  0x09, 0x00,	/*  nop */
1642  0, 0, 0, 0,	/* 0: replaced with address of .PLT0.  */
1643  0, 0, 0, 0,	/* 1: replaced with address of this symbol in .got.  */
1644  0, 0, 0, 0,	/* 2: replaced with offset into relocation table.  */
1645};
1646
1647/* Entries in a PIC procedure linkage table look like this.  */
1648
1649static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
1650{
1651  0xd0, 0x04,	/* mov.l 1f,r0 */
1652  0x00, 0xce,	/* mov.l @(r0,r12),r0 */
1653  0x40, 0x2b,	/* jmp @r0 */
1654  0x00, 0x09,	/*  nop */
1655  0x50, 0xc2,	/* mov.l @(8,r12),r0 */
1656  0xd1, 0x03,	/* mov.l 2f,r1 */
1657  0x40, 0x2b,	/* jmp @r0 */
1658  0x50, 0xc1,	/*  mov.l @(4,r12),r0 */
1659  0x00, 0x09,	/* nop */
1660  0x00, 0x09,	/* nop */
1661  0, 0, 0, 0,	/* 1: replaced with address of this symbol in .got.  */
1662  0, 0, 0, 0    /* 2: replaced with offset into relocation table.  */
1663};
1664
1665static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
1666{
1667  0x04, 0xd0,	/* mov.l 1f,r0 */
1668  0xce, 0x00,	/* mov.l @(r0,r12),r0 */
1669  0x2b, 0x40,	/* jmp @r0 */
1670  0x09, 0x00,	/*  nop */
1671  0xc2, 0x50,	/* mov.l @(8,r12),r0 */
1672  0x03, 0xd1,	/* mov.l 2f,r1 */
1673  0x2b, 0x40,	/* jmp @r0 */
1674  0xc1, 0x50,	/*  mov.l @(4,r12),r0 */
1675  0x09, 0x00,	/*  nop */
1676  0x09, 0x00,	/* nop */
1677  0, 0, 0, 0,	/* 1: replaced with address of this symbol in .got.  */
1678  0, 0, 0, 0    /* 2: replaced with offset into relocation table.  */
1679};
1680
1681static const struct elf_sh_plt_info elf_sh_plts[2][2] = {
1682  {
1683    {
1684      /* Big-endian non-PIC.  */
1685      elf_sh_plt0_entry_be,
1686      ELF_PLT_ENTRY_SIZE,
1687      { MINUS_ONE, 24, 20 },
1688      elf_sh_plt_entry_be,
1689      ELF_PLT_ENTRY_SIZE,
1690      { 20, 16, 24, FALSE },
1691      8,
1692      NULL
1693    },
1694    {
1695      /* Little-endian non-PIC.  */
1696      elf_sh_plt0_entry_le,
1697      ELF_PLT_ENTRY_SIZE,
1698      { MINUS_ONE, 24, 20 },
1699      elf_sh_plt_entry_le,
1700      ELF_PLT_ENTRY_SIZE,
1701      { 20, 16, 24, FALSE },
1702      8,
1703      NULL
1704    },
1705  },
1706  {
1707    {
1708      /* Big-endian PIC.  */
1709      elf_sh_plt0_entry_be,
1710      ELF_PLT_ENTRY_SIZE,
1711      { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1712      elf_sh_pic_plt_entry_be,
1713      ELF_PLT_ENTRY_SIZE,
1714      { 20, MINUS_ONE, 24, FALSE },
1715      8,
1716      NULL
1717    },
1718    {
1719      /* Little-endian PIC.  */
1720      elf_sh_plt0_entry_le,
1721      ELF_PLT_ENTRY_SIZE,
1722      { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1723      elf_sh_pic_plt_entry_le,
1724      ELF_PLT_ENTRY_SIZE,
1725      { 20, MINUS_ONE, 24, FALSE },
1726      8,
1727      NULL
1728    },
1729  }
1730};
1731
1732#define VXWORKS_PLT_HEADER_SIZE 12
1733#define VXWORKS_PLT_ENTRY_SIZE 24
1734
1735static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] =
1736{
1737  0xd1, 0x01,	/* mov.l @(8,pc),r1 */
1738  0x61, 0x12,	/* mov.l @r1,r1 */
1739  0x41, 0x2b,	/* jmp @r1 */
1740  0x00, 0x09,	/* nop */
1741  0, 0, 0, 0	/* 0: replaced with _GLOBAL_OFFSET_TABLE+8.  */
1742};
1743
1744static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] =
1745{
1746  0x01, 0xd1,	/* mov.l @(8,pc),r1 */
1747  0x12, 0x61,	/* mov.l @r1,r1 */
1748  0x2b, 0x41,	/* jmp @r1 */
1749  0x09, 0x00,	/* nop */
1750  0, 0, 0, 0	/* 0: replaced with _GLOBAL_OFFSET_TABLE+8.  */
1751};
1752
1753static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
1754{
1755  0xd0, 0x01,	/* mov.l @(8,pc),r0 */
1756  0x60, 0x02,	/* mov.l @r0,r0 */
1757  0x40, 0x2b,	/* jmp @r0 */
1758  0x00, 0x09,	/* nop */
1759  0, 0, 0, 0,	/* 0: replaced with address of this symbol in .got.  */
1760  0xd0, 0x01,	/* mov.l @(8,pc),r0 */
1761  0xa0, 0x00,	/* bra PLT (We need to fix the offset.)  */
1762  0x00, 0x09,	/* nop */
1763  0x00, 0x09,	/* nop */
1764  0, 0, 0, 0,	/* 1: replaced with offset into relocation table.  */
1765};
1766
1767static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
1768{
1769  0x01, 0xd0,	/* mov.l @(8,pc),r0 */
1770  0x02, 0x60,	/* mov.l @r0,r0 */
1771  0x2b, 0x40,	/* jmp @r0 */
1772  0x09, 0x00,	/* nop */
1773  0, 0, 0, 0,	/* 0: replaced with address of this symbol in .got.  */
1774  0x01, 0xd0,	/* mov.l @(8,pc),r0 */
1775  0x00, 0xa0,	/* bra PLT (We need to fix the offset.)  */
1776  0x09, 0x00,	/* nop */
1777  0x09, 0x00,	/* nop */
1778  0, 0, 0, 0,	/* 1: replaced with offset into relocation table.  */
1779};
1780
1781static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
1782{
1783  0xd0, 0x01,	/* mov.l @(8,pc),r0 */
1784  0x00, 0xce,	/* mov.l @(r0,r12),r0 */
1785  0x40, 0x2b,	/* jmp @r0 */
1786  0x00, 0x09,	/* nop */
1787  0, 0, 0, 0,	/* 0: replaced with offset of this symbol in .got.  */
1788  0xd0, 0x01,	/* mov.l @(8,pc),r0 */
1789  0x51, 0xc2,	/* mov.l @(8,r12),r1 */
1790  0x41, 0x2b,	/* jmp @r1 */
1791  0x00, 0x09,	/* nop */
1792  0, 0, 0, 0,	/* 1: replaced with offset into relocation table.  */
1793};
1794
1795static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
1796{
1797  0x01, 0xd0,	/* mov.l @(8,pc),r0 */
1798  0xce, 0x00,	/* mov.l @(r0,r12),r0 */
1799  0x2b, 0x40,	/* jmp @r0 */
1800  0x09, 0x00,	/* nop */
1801  0, 0, 0, 0,	/* 0: replaced with offset of this symbol in .got.  */
1802  0x01, 0xd0,	/* mov.l @(8,pc),r0 */
1803  0xc2, 0x51,	/* mov.l @(8,r12),r1 */
1804  0x2b, 0x41,	/* jmp @r1 */
1805  0x09, 0x00,	/* nop */
1806  0, 0, 0, 0,	/* 1: replaced with offset into relocation table.  */
1807};
1808
1809static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = {
1810  {
1811    {
1812      /* Big-endian non-PIC.  */
1813      vxworks_sh_plt0_entry_be,
1814      VXWORKS_PLT_HEADER_SIZE,
1815      { MINUS_ONE, MINUS_ONE, 8 },
1816      vxworks_sh_plt_entry_be,
1817      VXWORKS_PLT_ENTRY_SIZE,
1818      { 8, 14, 20, FALSE },
1819      12,
1820      NULL
1821    },
1822    {
1823      /* Little-endian non-PIC.  */
1824      vxworks_sh_plt0_entry_le,
1825      VXWORKS_PLT_HEADER_SIZE,
1826      { MINUS_ONE, MINUS_ONE, 8 },
1827      vxworks_sh_plt_entry_le,
1828      VXWORKS_PLT_ENTRY_SIZE,
1829      { 8, 14, 20, FALSE },
1830      12,
1831      NULL
1832    },
1833  },
1834  {
1835    {
1836      /* Big-endian PIC.  */
1837      NULL,
1838      0,
1839      { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1840      vxworks_sh_pic_plt_entry_be,
1841      VXWORKS_PLT_ENTRY_SIZE,
1842      { 8, MINUS_ONE, 20, FALSE },
1843      12,
1844      NULL
1845    },
1846    {
1847      /* Little-endian PIC.  */
1848      NULL,
1849      0,
1850      { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1851      vxworks_sh_pic_plt_entry_le,
1852      VXWORKS_PLT_ENTRY_SIZE,
1853      { 8, MINUS_ONE, 20, FALSE },
1854      12,
1855      NULL
1856    },
1857  }
1858};
1859
1860/* FDPIC PLT entries.  Two unimplemented optimizations for lazy
1861   binding are to omit the lazy binding stub when linking with -z now
1862   and to move lazy binding stubs into a separate region for better
1863   cache behavior.  */
1864
1865#define FDPIC_PLT_ENTRY_SIZE 28
1866#define FDPIC_PLT_LAZY_OFFSET 20
1867
1868/* FIXME: The lazy binding stub requires a plt0 - which may need to be
1869   duplicated if it is out of range, or which can be inlined.  So
1870   right now it is always inlined, which wastes a word per stub.  It
1871   might be easier to handle the duplication if we put the lazy
1872   stubs separately.  */
1873
1874static const bfd_byte fdpic_sh_plt_entry_be[FDPIC_PLT_ENTRY_SIZE] =
1875{
1876  0xd0, 0x02,	/* mov.l @(12,pc),r0 */
1877  0x01, 0xce,	/* mov.l @(r0,r12),r1 */
1878  0x70, 0x04,	/* add #4, r0 */
1879  0x41, 0x2b,	/* jmp @r1 */
1880  0x0c, 0xce,	/* mov.l @(r0,r12),r12 */
1881  0x00, 0x09,	/* nop */
1882  0, 0, 0, 0,	/* 0: replaced with offset of this symbol's funcdesc */
1883  0, 0, 0, 0,	/* 1: replaced with offset into relocation table.  */
1884  0x60, 0xc2,	/* mov.l @r12,r0 */
1885  0x40, 0x2b,	/* jmp @r0 */
1886  0x53, 0xc1,	/*  mov.l @(4,r12),r3 */
1887  0x00, 0x09,	/* nop */
1888};
1889
1890static const bfd_byte fdpic_sh_plt_entry_le[FDPIC_PLT_ENTRY_SIZE] =
1891{
1892  0x02, 0xd0,	/* mov.l @(12,pc),r0 */
1893  0xce, 0x01,	/* mov.l @(r0,r12),r1 */
1894  0x04, 0x70,	/* add #4, r0 */
1895  0x2b, 0x41,	/* jmp @r1 */
1896  0xce, 0x0c,	/* mov.l @(r0,r12),r12 */
1897  0x09, 0x00,	/* nop */
1898  0, 0, 0, 0,	/* 0: replaced with offset of this symbol's funcdesc */
1899  0, 0, 0, 0,	/* 1: replaced with offset into relocation table.  */
1900  0xc2, 0x60,	/* mov.l @r12,r0 */
1901  0x2b, 0x40,	/* jmp @r0 */
1902  0xc1, 0x53,	/*  mov.l @(4,r12),r3 */
1903  0x09, 0x00,	/* nop */
1904};
1905
1906static const struct elf_sh_plt_info fdpic_sh_plts[2] = {
1907  {
1908    /* Big-endian PIC.  */
1909    NULL,
1910    0,
1911    { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1912    fdpic_sh_plt_entry_be,
1913    FDPIC_PLT_ENTRY_SIZE,
1914    { 12, MINUS_ONE, 16, FALSE },
1915    FDPIC_PLT_LAZY_OFFSET,
1916    NULL
1917  },
1918  {
1919    /* Little-endian PIC.  */
1920    NULL,
1921    0,
1922    { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1923    fdpic_sh_plt_entry_le,
1924    FDPIC_PLT_ENTRY_SIZE,
1925    { 12, MINUS_ONE, 16, FALSE },
1926    FDPIC_PLT_LAZY_OFFSET,
1927    NULL
1928  },
1929};
1930
1931/* On SH2A, we can use the movi20 instruction to generate shorter PLT
1932   entries for the first 64K slots.  We use the normal FDPIC PLT entry
1933   past that point; we could also use movi20s, which might be faster,
1934   but would not be any smaller.  */
1935
1936#define FDPIC_SH2A_PLT_ENTRY_SIZE 24
1937#define FDPIC_SH2A_PLT_LAZY_OFFSET 16
1938
1939static const bfd_byte fdpic_sh2a_plt_entry_be[FDPIC_SH2A_PLT_ENTRY_SIZE] =
1940{
1941  0, 0, 0, 0,	/* movi20 #gotofffuncdesc,r0 */
1942  0x01, 0xce,	/* mov.l @(r0,r12),r1 */
1943  0x70, 0x04,	/* add #4, r0 */
1944  0x41, 0x2b,	/* jmp @r1 */
1945  0x0c, 0xce,	/* mov.l @(r0,r12),r12 */
1946  0, 0, 0, 0,	/* 1: replaced with offset into relocation table.  */
1947  0x60, 0xc2,	/* mov.l @r12,r0 */
1948  0x40, 0x2b,	/* jmp @r0 */
1949  0x53, 0xc1,	/*  mov.l @(4,r12),r3 */
1950  0x00, 0x09,	/* nop */
1951};
1952
1953static const bfd_byte fdpic_sh2a_plt_entry_le[FDPIC_SH2A_PLT_ENTRY_SIZE] =
1954{
1955  0, 0, 0, 0,	/* movi20 #gotofffuncdesc,r0 */
1956  0xce, 0x01,	/* mov.l @(r0,r12),r1 */
1957  0x04, 0x70,	/* add #4, r0 */
1958  0x2b, 0x41,	/* jmp @r1 */
1959  0xce, 0x0c,	/* mov.l @(r0,r12),r12 */
1960  0, 0, 0, 0,	/* 1: replaced with offset into relocation table.  */
1961  0xc2, 0x60,	/* mov.l @r12,r0 */
1962  0x2b, 0x40,	/* jmp @r0 */
1963  0xc1, 0x53,	/*  mov.l @(4,r12),r3 */
1964  0x09, 0x00,	/* nop */
1965};
1966
1967static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be = {
1968  /* Big-endian FDPIC, max index 64K.  */
1969  NULL,
1970  0,
1971  { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1972  fdpic_sh2a_plt_entry_be,
1973  FDPIC_SH2A_PLT_ENTRY_SIZE,
1974  { 0, MINUS_ONE, 12, TRUE },
1975  FDPIC_SH2A_PLT_LAZY_OFFSET,
1976  NULL
1977};
1978
1979static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le = {
1980  /* Little-endian FDPIC, max index 64K.  */
1981  NULL,
1982  0,
1983  { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1984  fdpic_sh2a_plt_entry_le,
1985  FDPIC_SH2A_PLT_ENTRY_SIZE,
1986  { 0, MINUS_ONE, 12, TRUE },
1987  FDPIC_SH2A_PLT_LAZY_OFFSET,
1988  NULL
1989};
1990
1991static const struct elf_sh_plt_info fdpic_sh2a_plts[2] = {
1992  {
1993    /* Big-endian PIC.  */
1994    NULL,
1995    0,
1996    { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1997    fdpic_sh_plt_entry_be,
1998    FDPIC_PLT_ENTRY_SIZE,
1999    { 12, MINUS_ONE, 16, FALSE },
2000    FDPIC_PLT_LAZY_OFFSET,
2001    &fdpic_sh2a_short_plt_be
2002  },
2003  {
2004    /* Little-endian PIC.  */
2005    NULL,
2006    0,
2007    { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2008    fdpic_sh_plt_entry_le,
2009    FDPIC_PLT_ENTRY_SIZE,
2010    { 12, MINUS_ONE, 16, FALSE },
2011    FDPIC_PLT_LAZY_OFFSET,
2012    &fdpic_sh2a_short_plt_le
2013  },
2014};
2015
2016/* Return the type of PLT associated with ABFD.  PIC_P is true if
2017   the object is position-independent.  */
2018
2019static const struct elf_sh_plt_info *
2020get_plt_info (bfd *abfd, bfd_boolean pic_p)
2021{
2022  if (fdpic_object_p (abfd))
2023    {
2024      /* If any input file requires SH2A we can use a shorter PLT
2025	 sequence.  */
2026      if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd)) & arch_sh2a_base)
2027	return &fdpic_sh2a_plts[!bfd_big_endian (abfd)];
2028      else
2029	return &fdpic_sh_plts[!bfd_big_endian (abfd)];
2030    }
2031  if (vxworks_object_p (abfd))
2032    return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)];
2033  return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)];
2034}
2035
2036/* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
2037   VALUE is the field's value and CODE_P is true if VALUE refers to code,
2038   not data.  */
2039
2040inline static void
2041install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED,
2042		   unsigned long value, bfd_byte *addr)
2043{
2044  bfd_put_32 (output_bfd, value, addr);
2045}
2046
2047/* The number of PLT entries which can use a shorter PLT, if any.
2048   Currently always 64K, since only SH-2A FDPIC uses this; a
2049   20-bit movi20 can address that many function descriptors below
2050   _GLOBAL_OFFSET_TABLE_.  */
2051#define MAX_SHORT_PLT 65536
2052
2053/* Return the index of the PLT entry at byte offset OFFSET.  */
2054
2055static bfd_vma
2056get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset)
2057{
2058  bfd_vma plt_index = 0;
2059
2060  offset -= info->plt0_entry_size;
2061  if (info->short_plt != NULL)
2062    {
2063      if (offset > MAX_SHORT_PLT * info->short_plt->symbol_entry_size)
2064	{
2065	  plt_index = MAX_SHORT_PLT;
2066	  offset -= MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2067	}
2068      else
2069	info = info->short_plt;
2070    }
2071  return plt_index + offset / info->symbol_entry_size;
2072}
2073
2074/* Do the inverse operation.  */
2075
2076static bfd_vma
2077get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index)
2078{
2079  bfd_vma offset = 0;
2080
2081  if (info->short_plt != NULL)
2082    {
2083      if (plt_index > MAX_SHORT_PLT)
2084	{
2085	  offset = MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2086	  plt_index -= MAX_SHORT_PLT;
2087	}
2088      else
2089	info = info->short_plt;
2090    }
2091  return (offset + info->plt0_entry_size
2092	  + (plt_index * info->symbol_entry_size));
2093}
2094
2095union gotref
2096{
2097  bfd_signed_vma refcount;
2098  bfd_vma offset;
2099};
2100
2101/* sh ELF linker hash entry.  */
2102
2103struct elf_sh_link_hash_entry
2104{
2105  struct elf_link_hash_entry root;
2106
2107  /* Track dynamic relocs copied for this symbol.  */
2108  struct elf_dyn_relocs *dyn_relocs;
2109
2110  bfd_signed_vma gotplt_refcount;
2111
2112  /* A local function descriptor, for FDPIC.  The refcount counts
2113     R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20
2114     relocations; the PLT and GOT entry are accounted
2115     for separately.  After adjust_dynamic_symbol, the offset is
2116     MINUS_ONE if there is no local descriptor (dynamic linker
2117     managed and no PLT entry, or undefined weak non-dynamic).
2118     During check_relocs we do not yet know whether the local
2119     descriptor will be canonical.  */
2120  union gotref funcdesc;
2121
2122  /* How many of the above refcounted relocations were R_SH_FUNCDESC,
2123     and thus require fixups or relocations.  */
2124  bfd_signed_vma abs_funcdesc_refcount;
2125
2126  enum got_type {
2127    GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC
2128  } got_type;
2129};
2130
2131#define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
2132
2133struct sh_elf_obj_tdata
2134{
2135  struct elf_obj_tdata root;
2136
2137  /* got_type for each local got entry.  */
2138  char *local_got_type;
2139
2140  /* Function descriptor refcount and offset for each local symbol.  */
2141  union gotref *local_funcdesc;
2142};
2143
2144#define sh_elf_tdata(abfd) \
2145  ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2146
2147#define sh_elf_local_got_type(abfd) \
2148  (sh_elf_tdata (abfd)->local_got_type)
2149
2150#define sh_elf_local_funcdesc(abfd) \
2151  (sh_elf_tdata (abfd)->local_funcdesc)
2152
2153#define is_sh_elf(bfd) \
2154  (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2155   && elf_tdata (bfd) != NULL \
2156   && elf_object_id (bfd) == SH_ELF_DATA)
2157
2158/* Override the generic function because we need to store sh_elf_obj_tdata
2159   as the specific tdata.  */
2160
2161static bfd_boolean
2162sh_elf_mkobject (bfd *abfd)
2163{
2164  return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata),
2165				  SH_ELF_DATA);
2166}
2167
2168/* sh ELF linker hash table.  */
2169
2170struct elf_sh_link_hash_table
2171{
2172  struct elf_link_hash_table root;
2173
2174  /* Short-cuts to get to dynamic linker sections.  */
2175  asection *sdynbss;
2176  asection *srelbss;
2177  asection *sfuncdesc;
2178  asection *srelfuncdesc;
2179  asection *srofixup;
2180
2181  /* The (unloaded but important) VxWorks .rela.plt.unloaded section.  */
2182  asection *srelplt2;
2183
2184  /* Small local sym cache.  */
2185  struct sym_cache sym_cache;
2186
2187  /* A counter or offset to track a TLS got entry.  */
2188  union
2189    {
2190      bfd_signed_vma refcount;
2191      bfd_vma offset;
2192    } tls_ldm_got;
2193
2194  /* The type of PLT to use.  */
2195  const struct elf_sh_plt_info *plt_info;
2196
2197  /* True if the target system is VxWorks.  */
2198  bfd_boolean vxworks_p;
2199
2200  /* True if the target system uses FDPIC.  */
2201  bfd_boolean fdpic_p;
2202};
2203
2204/* Traverse an sh ELF linker hash table.  */
2205
2206#define sh_elf_link_hash_traverse(table, func, info)			\
2207  (elf_link_hash_traverse						\
2208   (&(table)->root,							\
2209    (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
2210    (info)))
2211
2212/* Get the sh ELF linker hash table from a link_info structure.  */
2213
2214#define sh_elf_hash_table(p) \
2215  (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
2216  == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL)
2217
2218/* Create an entry in an sh ELF linker hash table.  */
2219
2220static struct bfd_hash_entry *
2221sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2222			  struct bfd_hash_table *table,
2223			  const char *string)
2224{
2225  struct elf_sh_link_hash_entry *ret =
2226    (struct elf_sh_link_hash_entry *) entry;
2227
2228  /* Allocate the structure if it has not already been allocated by a
2229     subclass.  */
2230  if (ret == (struct elf_sh_link_hash_entry *) NULL)
2231    ret = ((struct elf_sh_link_hash_entry *)
2232	   bfd_hash_allocate (table,
2233			      sizeof (struct elf_sh_link_hash_entry)));
2234  if (ret == (struct elf_sh_link_hash_entry *) NULL)
2235    return (struct bfd_hash_entry *) ret;
2236
2237  /* Call the allocation method of the superclass.  */
2238  ret = ((struct elf_sh_link_hash_entry *)
2239	 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2240				     table, string));
2241  if (ret != (struct elf_sh_link_hash_entry *) NULL)
2242    {
2243      ret->dyn_relocs = NULL;
2244      ret->gotplt_refcount = 0;
2245      ret->funcdesc.refcount = 0;
2246      ret->abs_funcdesc_refcount = 0;
2247      ret->got_type = GOT_UNKNOWN;
2248    }
2249
2250  return (struct bfd_hash_entry *) ret;
2251}
2252
2253/* Create an sh ELF linker hash table.  */
2254
2255static struct bfd_link_hash_table *
2256sh_elf_link_hash_table_create (bfd *abfd)
2257{
2258  struct elf_sh_link_hash_table *ret;
2259  bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
2260
2261  ret = (struct elf_sh_link_hash_table *) bfd_zmalloc (amt);
2262  if (ret == (struct elf_sh_link_hash_table *) NULL)
2263    return NULL;
2264
2265  if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
2266				      sh_elf_link_hash_newfunc,
2267				      sizeof (struct elf_sh_link_hash_entry),
2268				      SH_ELF_DATA))
2269    {
2270      free (ret);
2271      return NULL;
2272    }
2273
2274  ret->vxworks_p = vxworks_object_p (abfd);
2275  ret->fdpic_p = fdpic_object_p (abfd);
2276
2277  return &ret->root.root;
2278}
2279
2280static bfd_boolean
2281sh_elf_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2282			    struct bfd_link_info *info, asection *p)
2283{
2284  struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
2285
2286  /* Non-FDPIC binaries do not need dynamic symbols for sections.  */
2287  if (!htab->fdpic_p)
2288    return TRUE;
2289
2290  /* We need dynamic symbols for every section, since segments can
2291     relocate independently.  */
2292  switch (elf_section_data (p)->this_hdr.sh_type)
2293    {
2294    case SHT_PROGBITS:
2295    case SHT_NOBITS:
2296      /* If sh_type is yet undecided, assume it could be
2297	 SHT_PROGBITS/SHT_NOBITS.  */
2298    case SHT_NULL:
2299      return FALSE;
2300
2301      /* There shouldn't be section relative relocations
2302	 against any other section.  */
2303    default:
2304      return TRUE;
2305    }
2306}
2307
2308/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2309   shortcuts to them in our hash table.  */
2310
2311static bfd_boolean
2312create_got_section (bfd *dynobj, struct bfd_link_info *info)
2313{
2314  struct elf_sh_link_hash_table *htab;
2315
2316  if (! _bfd_elf_create_got_section (dynobj, info))
2317    return FALSE;
2318
2319  htab = sh_elf_hash_table (info);
2320  if (htab == NULL)
2321    return FALSE;
2322
2323  htab->sfuncdesc = bfd_make_section_anyway_with_flags (dynobj, ".got.funcdesc",
2324							(SEC_ALLOC | SEC_LOAD
2325							 | SEC_HAS_CONTENTS
2326							 | SEC_IN_MEMORY
2327							 | SEC_LINKER_CREATED));
2328  if (htab->sfuncdesc == NULL
2329      || !bfd_set_section_alignment (htab->sfuncdesc, 2))
2330    return FALSE;
2331
2332  htab->srelfuncdesc = bfd_make_section_anyway_with_flags (dynobj,
2333							   ".rela.got.funcdesc",
2334							   (SEC_ALLOC | SEC_LOAD
2335							    | SEC_HAS_CONTENTS
2336							    | SEC_IN_MEMORY
2337							    | SEC_LINKER_CREATED
2338							    | SEC_READONLY));
2339  if (htab->srelfuncdesc == NULL
2340      || !bfd_set_section_alignment (htab->srelfuncdesc, 2))
2341    return FALSE;
2342
2343  /* Also create .rofixup.  */
2344  htab->srofixup = bfd_make_section_anyway_with_flags (dynobj, ".rofixup",
2345						       (SEC_ALLOC | SEC_LOAD
2346							| SEC_HAS_CONTENTS
2347							| SEC_IN_MEMORY
2348							| SEC_LINKER_CREATED
2349							| SEC_READONLY));
2350  if (htab->srofixup == NULL
2351      || !bfd_set_section_alignment (htab->srofixup, 2))
2352    return FALSE;
2353
2354  return TRUE;
2355}
2356
2357/* Create dynamic sections when linking against a dynamic object.  */
2358
2359static bfd_boolean
2360sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2361{
2362  struct elf_sh_link_hash_table *htab;
2363  flagword flags, pltflags;
2364  asection *s;
2365  const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2366  int ptralign = 0;
2367
2368  switch (bed->s->arch_size)
2369    {
2370    case 32:
2371      ptralign = 2;
2372      break;
2373
2374    case 64:
2375      ptralign = 3;
2376      break;
2377
2378    default:
2379      bfd_set_error (bfd_error_bad_value);
2380      return FALSE;
2381    }
2382
2383  htab = sh_elf_hash_table (info);
2384  if (htab == NULL)
2385    return FALSE;
2386
2387  if (htab->root.dynamic_sections_created)
2388    return TRUE;
2389
2390  /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2391     .rel[a].bss sections.  */
2392
2393  flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2394	   | SEC_LINKER_CREATED);
2395
2396  pltflags = flags;
2397  pltflags |= SEC_CODE;
2398  if (bed->plt_not_loaded)
2399    pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2400  if (bed->plt_readonly)
2401    pltflags |= SEC_READONLY;
2402
2403  s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
2404  htab->root.splt = s;
2405  if (s == NULL
2406      || !bfd_set_section_alignment (s, bed->plt_alignment))
2407    return FALSE;
2408
2409  if (bed->want_plt_sym)
2410    {
2411      /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2412	 .plt section.  */
2413      struct elf_link_hash_entry *h;
2414      struct bfd_link_hash_entry *bh = NULL;
2415
2416      if (! (_bfd_generic_link_add_one_symbol
2417	     (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2418	      (bfd_vma) 0, (const char *) NULL, FALSE,
2419	      get_elf_backend_data (abfd)->collect, &bh)))
2420	return FALSE;
2421
2422      h = (struct elf_link_hash_entry *) bh;
2423      h->def_regular = 1;
2424      h->type = STT_OBJECT;
2425      htab->root.hplt = h;
2426
2427      if (bfd_link_pic (info)
2428	  && ! bfd_elf_link_record_dynamic_symbol (info, h))
2429	return FALSE;
2430    }
2431
2432  s = bfd_make_section_anyway_with_flags (abfd,
2433					  bed->default_use_rela_p
2434					  ? ".rela.plt" : ".rel.plt",
2435					  flags | SEC_READONLY);
2436  htab->root.srelplt = s;
2437  if (s == NULL
2438      || !bfd_set_section_alignment (s, ptralign))
2439    return FALSE;
2440
2441  if (htab->root.sgot == NULL
2442      && !create_got_section (abfd, info))
2443    return FALSE;
2444
2445  if (bed->want_dynbss)
2446    {
2447      /* The .dynbss section is a place to put symbols which are defined
2448	 by dynamic objects, are referenced by regular objects, and are
2449	 not functions.  We must allocate space for them in the process
2450	 image and use a R_*_COPY reloc to tell the dynamic linker to
2451	 initialize them at run time.  The linker script puts the .dynbss
2452	 section into the .bss section of the final image.  */
2453      s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2454					      SEC_ALLOC | SEC_LINKER_CREATED);
2455      htab->sdynbss = s;
2456      if (s == NULL)
2457	return FALSE;
2458
2459      /* The .rel[a].bss section holds copy relocs.  This section is not
2460	 normally needed.  We need to create it here, though, so that the
2461	 linker will map it to an output section.  We can't just create it
2462	 only if we need it, because we will not know whether we need it
2463	 until we have seen all the input files, and the first time the
2464	 main linker code calls BFD after examining all the input files
2465	 (size_dynamic_sections) the input sections have already been
2466	 mapped to the output sections.  If the section turns out not to
2467	 be needed, we can discard it later.  We will never need this
2468	 section when generating a shared object, since they do not use
2469	 copy relocs.  */
2470      if (! bfd_link_pic (info))
2471	{
2472	  s = bfd_make_section_anyway_with_flags (abfd,
2473						  (bed->default_use_rela_p
2474						   ? ".rela.bss" : ".rel.bss"),
2475						  flags | SEC_READONLY);
2476	  htab->srelbss = s;
2477	  if (s == NULL
2478	      || !bfd_set_section_alignment (s, ptralign))
2479	    return FALSE;
2480	}
2481    }
2482
2483  if (htab->vxworks_p)
2484    {
2485      if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2486	return FALSE;
2487    }
2488
2489  return TRUE;
2490}
2491
2492/* Find dynamic relocs for H that apply to read-only sections.  */
2493
2494static asection *
2495readonly_dynrelocs (struct elf_link_hash_entry *h)
2496{
2497  struct elf_dyn_relocs *p;
2498
2499  for (p = sh_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
2500    {
2501      asection *s = p->sec->output_section;
2502
2503      if (s != NULL && (s->flags & SEC_READONLY) != 0)
2504	return p->sec;
2505    }
2506  return NULL;
2507}
2508
2509/* Adjust a symbol defined by a dynamic object and referenced by a
2510   regular object.  The current definition is in some section of the
2511   dynamic object, but we're not including those sections.  We have to
2512   change the definition to something the rest of the link can
2513   understand.  */
2514
2515static bfd_boolean
2516sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2517			      struct elf_link_hash_entry *h)
2518{
2519  struct elf_sh_link_hash_table *htab;
2520  asection *s;
2521
2522  htab = sh_elf_hash_table (info);
2523  if (htab == NULL)
2524    return FALSE;
2525
2526  /* Make sure we know what is going on here.  */
2527  BFD_ASSERT (htab->root.dynobj != NULL
2528	      && (h->needs_plt
2529		  || h->type == STT_GNU_IFUNC
2530		  || h->is_weakalias
2531		  || (h->def_dynamic
2532		      && h->ref_regular
2533		      && !h->def_regular)));
2534
2535  /* If this is a function, put it in the procedure linkage table.  We
2536     will fill in the contents of the procedure linkage table later,
2537     when we know the address of the .got section.  */
2538  if ((h->type == STT_FUNC || h->type == STT_GNU_IFUNC)
2539      || h->needs_plt)
2540    {
2541      if (h->plt.refcount <= 0
2542	  || SYMBOL_CALLS_LOCAL (info, h)
2543	  || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2544	      && h->root.type == bfd_link_hash_undefweak))
2545	{
2546	  /* This case can occur if we saw a PLT reloc in an input
2547	     file, but the symbol was never referred to by a dynamic
2548	     object.  In such a case, we don't actually need to build
2549	     a procedure linkage table, and we can just do a REL32
2550	     reloc instead.  */
2551	  h->plt.offset = (bfd_vma) -1;
2552	  h->needs_plt = 0;
2553	}
2554
2555      return TRUE;
2556    }
2557  else
2558    h->plt.offset = (bfd_vma) -1;
2559
2560  /* If this is a weak symbol, and there is a real definition, the
2561     processor independent code will have arranged for us to see the
2562     real definition first, and we can just use the same value.  */
2563  if (h->is_weakalias)
2564    {
2565      struct elf_link_hash_entry *def = weakdef (h);
2566      BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2567      h->root.u.def.section = def->root.u.def.section;
2568      h->root.u.def.value = def->root.u.def.value;
2569      if (info->nocopyreloc)
2570	h->non_got_ref = def->non_got_ref;
2571      return TRUE;
2572    }
2573
2574  /* This is a reference to a symbol defined by a dynamic object which
2575     is not a function.  */
2576
2577  /* If we are creating a shared library, we must presume that the
2578     only references to the symbol are via the global offset table.
2579     For such cases we need not do anything here; the relocations will
2580     be handled correctly by relocate_section.  */
2581  if (bfd_link_pic (info))
2582    return TRUE;
2583
2584  /* If there are no references to this symbol that do not use the
2585     GOT, we don't need to generate a copy reloc.  */
2586  if (!h->non_got_ref)
2587    return TRUE;
2588
2589  /* If -z nocopyreloc was given, we won't generate them either.  */
2590  if (0 && info->nocopyreloc)
2591    {
2592      h->non_got_ref = 0;
2593      return TRUE;
2594    }
2595
2596  /* If we don't find any dynamic relocs in read-only sections, then
2597     we'll be keeping the dynamic relocs and avoiding the copy reloc.  */
2598  if (0 && !readonly_dynrelocs (h))
2599    {
2600      h->non_got_ref = 0;
2601      return TRUE;
2602    }
2603
2604  /* We must allocate the symbol in our .dynbss section, which will
2605     become part of the .bss section of the executable.  There will be
2606     an entry for this symbol in the .dynsym section.  The dynamic
2607     object will contain position independent code, so all references
2608     from the dynamic object to this symbol will go through the global
2609     offset table.  The dynamic linker will use the .dynsym entry to
2610     determine the address it must put in the global offset table, so
2611     both the dynamic object and the regular object will refer to the
2612     same memory location for the variable.  */
2613
2614  s = htab->sdynbss;
2615  BFD_ASSERT (s != NULL);
2616
2617  /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2618     copy the initial value out of the dynamic object and into the
2619     runtime process image.  We need to remember the offset into the
2620     .rela.bss section we are going to use.  */
2621  if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2622    {
2623      asection *srel;
2624
2625      srel = htab->srelbss;
2626      BFD_ASSERT (srel != NULL);
2627      srel->size += sizeof (Elf32_External_Rela);
2628      h->needs_copy = 1;
2629    }
2630
2631  return _bfd_elf_adjust_dynamic_copy (info, h, s);
2632}
2633
2634/* Allocate space in .plt, .got and associated reloc sections for
2635   dynamic relocs.  */
2636
2637static bfd_boolean
2638allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2639{
2640  struct bfd_link_info *info;
2641  struct elf_sh_link_hash_table *htab;
2642  struct elf_sh_link_hash_entry *eh;
2643  struct elf_dyn_relocs *p;
2644
2645  if (h->root.type == bfd_link_hash_indirect)
2646    return TRUE;
2647
2648  info = (struct bfd_link_info *) inf;
2649  htab = sh_elf_hash_table (info);
2650  if (htab == NULL)
2651    return FALSE;
2652
2653  eh = (struct elf_sh_link_hash_entry *) h;
2654  if ((h->got.refcount > 0
2655       || h->forced_local)
2656      && eh->gotplt_refcount > 0)
2657    {
2658      /* The symbol has been forced local, or we have some direct got refs,
2659	 so treat all the gotplt refs as got refs. */
2660      h->got.refcount += eh->gotplt_refcount;
2661      if (h->plt.refcount >= eh->gotplt_refcount)
2662	h->plt.refcount -= eh->gotplt_refcount;
2663    }
2664
2665  if (htab->root.dynamic_sections_created
2666      && h->plt.refcount > 0
2667      && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2668	  || h->root.type != bfd_link_hash_undefweak))
2669    {
2670      /* Make sure this symbol is output as a dynamic symbol.
2671	 Undefined weak syms won't yet be marked as dynamic.  */
2672      if (h->dynindx == -1
2673	  && !h->forced_local)
2674	{
2675	  if (! bfd_elf_link_record_dynamic_symbol (info, h))
2676	    return FALSE;
2677	}
2678
2679      if (bfd_link_pic (info)
2680	  || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
2681	{
2682	  asection *s = htab->root.splt;
2683	  const struct elf_sh_plt_info *plt_info;
2684
2685	  /* If this is the first .plt entry, make room for the special
2686	     first entry.  */
2687	  if (s->size == 0)
2688	    s->size += htab->plt_info->plt0_entry_size;
2689
2690	  h->plt.offset = s->size;
2691
2692	  /* If this symbol is not defined in a regular file, and we are
2693	     not generating a shared library, then set the symbol to this
2694	     location in the .plt.  This is required to make function
2695	     pointers compare as equal between the normal executable and
2696	     the shared library.  Skip this for FDPIC, since the
2697	     function's address will be the address of the canonical
2698	     function descriptor.  */
2699	  if (!htab->fdpic_p && !bfd_link_pic (info) && !h->def_regular)
2700	    {
2701	      h->root.u.def.section = s;
2702	      h->root.u.def.value = h->plt.offset;
2703	    }
2704
2705	  /* Make room for this entry.  */
2706	  plt_info = htab->plt_info;
2707	  if (plt_info->short_plt != NULL
2708	      && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT))
2709	    plt_info = plt_info->short_plt;
2710	  s->size += plt_info->symbol_entry_size;
2711
2712	  /* We also need to make an entry in the .got.plt section, which
2713	     will be placed in the .got section by the linker script.  */
2714	  if (!htab->fdpic_p)
2715	    htab->root.sgotplt->size += 4;
2716	  else
2717	    htab->root.sgotplt->size += 8;
2718
2719	  /* We also need to make an entry in the .rel.plt section.  */
2720	  htab->root.srelplt->size += sizeof (Elf32_External_Rela);
2721
2722	  if (htab->vxworks_p && !bfd_link_pic (info))
2723	    {
2724	      /* VxWorks executables have a second set of relocations
2725		 for each PLT entry.  They go in a separate relocation
2726		 section, which is processed by the kernel loader.  */
2727
2728	      /* There is a relocation for the initial PLT entry:
2729		 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_.  */
2730	      if (h->plt.offset == htab->plt_info->plt0_entry_size)
2731		htab->srelplt2->size += sizeof (Elf32_External_Rela);
2732
2733	      /* There are two extra relocations for each subsequent
2734		 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
2735		 and an R_SH_DIR32 relocation for the PLT entry.  */
2736	      htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2;
2737	    }
2738	}
2739      else
2740	{
2741	  h->plt.offset = (bfd_vma) -1;
2742	  h->needs_plt = 0;
2743	}
2744    }
2745  else
2746    {
2747      h->plt.offset = (bfd_vma) -1;
2748      h->needs_plt = 0;
2749    }
2750
2751  if (h->got.refcount > 0)
2752    {
2753      asection *s;
2754      bfd_boolean dyn;
2755      enum got_type got_type = sh_elf_hash_entry (h)->got_type;
2756
2757      /* Make sure this symbol is output as a dynamic symbol.
2758	 Undefined weak syms won't yet be marked as dynamic.  */
2759      if (h->dynindx == -1
2760	  && !h->forced_local)
2761	{
2762	  if (! bfd_elf_link_record_dynamic_symbol (info, h))
2763	    return FALSE;
2764	}
2765
2766      s = htab->root.sgot;
2767      h->got.offset = s->size;
2768      s->size += 4;
2769      /* R_SH_TLS_GD needs 2 consecutive GOT slots.  */
2770      if (got_type == GOT_TLS_GD)
2771	s->size += 4;
2772      dyn = htab->root.dynamic_sections_created;
2773      if (!dyn)
2774	{
2775	  /* No dynamic relocations required.  */
2776	  if (htab->fdpic_p && !bfd_link_pic (info)
2777	      && h->root.type != bfd_link_hash_undefweak
2778	      && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC))
2779	    htab->srofixup->size += 4;
2780	}
2781      /* No dynamic relocations required when IE->LE conversion happens.  */
2782      else if (got_type == GOT_TLS_IE
2783	       && !h->def_dynamic
2784	       && !bfd_link_pic (info))
2785	;
2786      /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
2787	 R_SH_TLS_GD needs one if local symbol and two if global.  */
2788      else if ((got_type == GOT_TLS_GD && h->dynindx == -1)
2789	       || got_type == GOT_TLS_IE)
2790	htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2791      else if (got_type == GOT_TLS_GD)
2792	htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
2793      else if (got_type == GOT_FUNCDESC)
2794	{
2795	  if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
2796	    htab->srofixup->size += 4;
2797	  else
2798	    htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2799	}
2800      else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2801		|| h->root.type != bfd_link_hash_undefweak)
2802	       && (bfd_link_pic (info)
2803		   || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
2804	htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2805      else if (htab->fdpic_p
2806	       && !bfd_link_pic (info)
2807	       && got_type == GOT_NORMAL
2808	       && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2809		   || h->root.type != bfd_link_hash_undefweak))
2810	htab->srofixup->size += 4;
2811    }
2812  else
2813    h->got.offset = (bfd_vma) -1;
2814
2815  /* Allocate space for any dynamic relocations to function
2816     descriptors, canonical or otherwise.  We need to relocate the
2817     reference unless it resolves to zero, which only happens for
2818     undefined weak symbols (either non-default visibility, or when
2819     static linking).  Any GOT slot is accounted for elsewhere.  */
2820  if (eh->abs_funcdesc_refcount > 0
2821      && (h->root.type != bfd_link_hash_undefweak
2822	  || (htab->root.dynamic_sections_created
2823	      && ! SYMBOL_CALLS_LOCAL (info, h))))
2824    {
2825      if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
2826	htab->srofixup->size += eh->abs_funcdesc_refcount * 4;
2827      else
2828	htab->root.srelgot->size
2829	  += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela);
2830    }
2831
2832  /* We must allocate a function descriptor if there are references to
2833     a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
2834     the dynamic linker isn't going to allocate it.  None of this
2835     applies if we already created one in .got.plt, but if the
2836     canonical function descriptor can be in this object, there
2837     won't be a PLT entry at all.  */
2838  if ((eh->funcdesc.refcount > 0
2839       || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC))
2840      && h->root.type != bfd_link_hash_undefweak
2841      && SYMBOL_FUNCDESC_LOCAL (info, h))
2842    {
2843      /* Make room for this function descriptor.  */
2844      eh->funcdesc.offset = htab->sfuncdesc->size;
2845      htab->sfuncdesc->size += 8;
2846
2847      /* We will need a relocation or two fixups to initialize the
2848	 function descriptor, so allocate those too.  */
2849      if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
2850	htab->srofixup->size += 8;
2851      else
2852	htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
2853    }
2854
2855  if (eh->dyn_relocs == NULL)
2856    return TRUE;
2857
2858  /* In the shared -Bsymbolic case, discard space allocated for
2859     dynamic pc-relative relocs against symbols which turn out to be
2860     defined in regular objects.  For the normal shared case, discard
2861     space for pc-relative relocs that have become local due to symbol
2862     visibility changes.  */
2863
2864  if (bfd_link_pic (info))
2865    {
2866      if (SYMBOL_CALLS_LOCAL (info, h))
2867	{
2868	  struct elf_dyn_relocs **pp;
2869
2870	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2871	    {
2872	      p->count -= p->pc_count;
2873	      p->pc_count = 0;
2874	      if (p->count == 0)
2875		*pp = p->next;
2876	      else
2877		pp = &p->next;
2878	    }
2879	}
2880
2881      if (htab->vxworks_p)
2882	{
2883	  struct elf_dyn_relocs **pp;
2884
2885	  for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2886	    {
2887	      if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2888		*pp = p->next;
2889	      else
2890		pp = &p->next;
2891	    }
2892	}
2893
2894      /* Also discard relocs on undefined weak syms with non-default
2895	 visibility.  */
2896      if (eh->dyn_relocs != NULL
2897	  && h->root.type == bfd_link_hash_undefweak)
2898	{
2899	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2900	      || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2901	    eh->dyn_relocs = NULL;
2902
2903	  /* Make sure undefined weak symbols are output as a dynamic
2904	     symbol in PIEs.  */
2905	  else if (h->dynindx == -1
2906		   && !h->forced_local)
2907	    {
2908	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
2909		return FALSE;
2910	    }
2911	}
2912    }
2913  else
2914    {
2915      /* For the non-shared case, discard space for relocs against
2916	 symbols which turn out to need copy relocs or are not
2917	 dynamic.  */
2918
2919      if (!h->non_got_ref
2920	  && ((h->def_dynamic
2921	       && !h->def_regular)
2922	      || (htab->root.dynamic_sections_created
2923		  && (h->root.type == bfd_link_hash_undefweak
2924		      || h->root.type == bfd_link_hash_undefined))))
2925	{
2926	  /* Make sure this symbol is output as a dynamic symbol.
2927	     Undefined weak syms won't yet be marked as dynamic.  */
2928	  if (h->dynindx == -1
2929	      && !h->forced_local)
2930	    {
2931	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
2932		return FALSE;
2933	    }
2934
2935	  /* If that succeeded, we know we'll be keeping all the
2936	     relocs.  */
2937	  if (h->dynindx != -1)
2938	    goto keep;
2939	}
2940
2941      eh->dyn_relocs = NULL;
2942
2943    keep: ;
2944    }
2945
2946  /* Finally, allocate space.  */
2947  for (p = eh->dyn_relocs; p != NULL; p = p->next)
2948    {
2949      asection *sreloc = elf_section_data (p->sec)->sreloc;
2950      sreloc->size += p->count * sizeof (Elf32_External_Rela);
2951
2952      /* If we need relocations, we do not need fixups.  */
2953      if (htab->fdpic_p && !bfd_link_pic (info))
2954	htab->srofixup->size -= 4 * (p->count - p->pc_count);
2955    }
2956
2957  return TRUE;
2958}
2959
2960/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2961   read-only sections.  */
2962
2963static bfd_boolean
2964maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2965{
2966  asection *sec;
2967
2968  if (h->root.type == bfd_link_hash_indirect)
2969    return TRUE;
2970
2971  sec = readonly_dynrelocs (h);
2972  if (sec != NULL)
2973    {
2974      struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2975
2976      info->flags |= DF_TEXTREL;
2977      info->callbacks->minfo
2978	(_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2979	 sec->owner, h->root.root.string, sec);
2980
2981      /* Not an error, just cut short the traversal.  */
2982      return FALSE;
2983    }
2984  return TRUE;
2985}
2986
2987/* This function is called after all the input files have been read,
2988   and the input sections have been assigned to output sections.
2989   It's a convenient place to determine the PLT style.  */
2990
2991static bfd_boolean
2992sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2993{
2994  sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd,
2995						     bfd_link_pic (info));
2996
2997  if (sh_elf_hash_table (info)->fdpic_p && !bfd_link_relocatable (info)
2998      && !bfd_elf_stack_segment_size (output_bfd, info,
2999				      "__stacksize", DEFAULT_STACK_SIZE))
3000    return FALSE;
3001  return TRUE;
3002}
3003
3004/* Set the sizes of the dynamic sections.  */
3005
3006static bfd_boolean
3007sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3008			      struct bfd_link_info *info)
3009{
3010  struct elf_sh_link_hash_table *htab;
3011  bfd *dynobj;
3012  asection *s;
3013  bfd_boolean relocs;
3014  bfd *ibfd;
3015
3016  htab = sh_elf_hash_table (info);
3017  if (htab == NULL)
3018    return FALSE;
3019
3020  dynobj = htab->root.dynobj;
3021  BFD_ASSERT (dynobj != NULL);
3022
3023  if (htab->root.dynamic_sections_created)
3024    {
3025      /* Set the contents of the .interp section to the interpreter.  */
3026      if (bfd_link_executable (info) && !info->nointerp)
3027	{
3028	  s = bfd_get_linker_section (dynobj, ".interp");
3029	  BFD_ASSERT (s != NULL);
3030	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3031	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3032	}
3033    }
3034
3035  /* Set up .got offsets for local syms, and space for local dynamic
3036     relocs.  */
3037  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
3038    {
3039      bfd_signed_vma *local_got;
3040      bfd_signed_vma *end_local_got;
3041      union gotref *local_funcdesc, *end_local_funcdesc;
3042      char *local_got_type;
3043      bfd_size_type locsymcount;
3044      Elf_Internal_Shdr *symtab_hdr;
3045      asection *srel;
3046
3047      if (! is_sh_elf (ibfd))
3048	continue;
3049
3050      for (s = ibfd->sections; s != NULL; s = s->next)
3051	{
3052	  struct elf_dyn_relocs *p;
3053
3054	  for (p = ((struct elf_dyn_relocs *)
3055		    elf_section_data (s)->local_dynrel);
3056	       p != NULL;
3057	       p = p->next)
3058	    {
3059	      if (! bfd_is_abs_section (p->sec)
3060		  && bfd_is_abs_section (p->sec->output_section))
3061		{
3062		  /* Input section has been discarded, either because
3063		     it is a copy of a linkonce section or due to
3064		     linker script /DISCARD/, so we'll be discarding
3065		     the relocs too.  */
3066		}
3067	      else if (htab->vxworks_p
3068		       && strcmp (p->sec->output_section->name,
3069				  ".tls_vars") == 0)
3070		{
3071		  /* Relocations in vxworks .tls_vars sections are
3072		     handled specially by the loader.  */
3073		}
3074	      else if (p->count != 0)
3075		{
3076		  srel = elf_section_data (p->sec)->sreloc;
3077		  srel->size += p->count * sizeof (Elf32_External_Rela);
3078		  if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3079		    {
3080		      info->flags |= DF_TEXTREL;
3081		      info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
3082					      p->sec->owner, p->sec);
3083		    }
3084
3085		  /* If we need relocations, we do not need fixups.  */
3086		  if (htab->fdpic_p && !bfd_link_pic (info))
3087		    htab->srofixup->size -= 4 * (p->count - p->pc_count);
3088		}
3089	    }
3090	}
3091
3092      symtab_hdr = &elf_symtab_hdr (ibfd);
3093      locsymcount = symtab_hdr->sh_info;
3094      s = htab->root.sgot;
3095      srel = htab->root.srelgot;
3096
3097      local_got = elf_local_got_refcounts (ibfd);
3098      if (local_got)
3099	{
3100	  end_local_got = local_got + locsymcount;
3101	  local_got_type = sh_elf_local_got_type (ibfd);
3102	  local_funcdesc = sh_elf_local_funcdesc (ibfd);
3103	  for (; local_got < end_local_got; ++local_got)
3104	    {
3105	      if (*local_got > 0)
3106		{
3107		  *local_got = s->size;
3108		  s->size += 4;
3109		  if (*local_got_type == GOT_TLS_GD)
3110		    s->size += 4;
3111		  if (bfd_link_pic (info))
3112		    srel->size += sizeof (Elf32_External_Rela);
3113		  else
3114		    htab->srofixup->size += 4;
3115
3116		  if (*local_got_type == GOT_FUNCDESC)
3117		    {
3118		      if (local_funcdesc == NULL)
3119			{
3120			  bfd_size_type size;
3121
3122			  size = locsymcount * sizeof (union gotref);
3123			  local_funcdesc = (union gotref *) bfd_zalloc (ibfd,
3124									size);
3125			  if (local_funcdesc == NULL)
3126			    return FALSE;
3127			  sh_elf_local_funcdesc (ibfd) = local_funcdesc;
3128			  local_funcdesc += (local_got
3129					     - elf_local_got_refcounts (ibfd));
3130			}
3131		      local_funcdesc->refcount++;
3132		      ++local_funcdesc;
3133		    }
3134		}
3135	      else
3136		*local_got = (bfd_vma) -1;
3137	      ++local_got_type;
3138	    }
3139	}
3140
3141      local_funcdesc = sh_elf_local_funcdesc (ibfd);
3142      if (local_funcdesc)
3143	{
3144	  end_local_funcdesc = local_funcdesc + locsymcount;
3145
3146	  for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc)
3147	    {
3148	      if (local_funcdesc->refcount > 0)
3149		{
3150		  local_funcdesc->offset = htab->sfuncdesc->size;
3151		  htab->sfuncdesc->size += 8;
3152		  if (!bfd_link_pic (info))
3153		    htab->srofixup->size += 8;
3154		  else
3155		    htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
3156		}
3157	      else
3158		local_funcdesc->offset = MINUS_ONE;
3159	    }
3160	}
3161
3162    }
3163
3164  if (htab->tls_ldm_got.refcount > 0)
3165    {
3166      /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3167	 relocs.  */
3168      htab->tls_ldm_got.offset = htab->root.sgot->size;
3169      htab->root.sgot->size += 8;
3170      htab->root.srelgot->size += sizeof (Elf32_External_Rela);
3171    }
3172  else
3173    htab->tls_ldm_got.offset = -1;
3174
3175  /* Only the reserved entries should be present.  For FDPIC, they go at
3176     the end of .got.plt.  */
3177  if (htab->fdpic_p)
3178    {
3179      BFD_ASSERT (htab->root.sgotplt && htab->root.sgotplt->size == 12);
3180      htab->root.sgotplt->size = 0;
3181    }
3182
3183  /* Allocate global sym .plt and .got entries, and space for global
3184     sym dynamic relocs.  */
3185  elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
3186
3187  /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3188     end of the FDPIC .got.plt.  */
3189  if (htab->fdpic_p)
3190    {
3191      htab->root.hgot->root.u.def.value = htab->root.sgotplt->size;
3192      htab->root.sgotplt->size += 12;
3193    }
3194
3195  /* At the very end of the .rofixup section is a pointer to the GOT.  */
3196  if (htab->fdpic_p && htab->srofixup != NULL)
3197    htab->srofixup->size += 4;
3198
3199  /* We now have determined the sizes of the various dynamic sections.
3200     Allocate memory for them.  */
3201  relocs = FALSE;
3202  for (s = dynobj->sections; s != NULL; s = s->next)
3203    {
3204      if ((s->flags & SEC_LINKER_CREATED) == 0)
3205	continue;
3206
3207      if (s == htab->root.splt
3208	  || s == htab->root.sgot
3209	  || s == htab->root.sgotplt
3210	  || s == htab->sfuncdesc
3211	  || s == htab->srofixup
3212	  || s == htab->sdynbss)
3213	{
3214	  /* Strip this section if we don't need it; see the
3215	     comment below.  */
3216	}
3217      else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
3218	{
3219	  if (s->size != 0 && s != htab->root.srelplt && s != htab->srelplt2)
3220	    relocs = TRUE;
3221
3222	  /* We use the reloc_count field as a counter if we need
3223	     to copy relocs into the output file.  */
3224	  s->reloc_count = 0;
3225	}
3226      else
3227	{
3228	  /* It's not one of our sections, so don't allocate space.  */
3229	  continue;
3230	}
3231
3232      if (s->size == 0)
3233	{
3234	  /* If we don't need this section, strip it from the
3235	     output file.  This is mostly to handle .rela.bss and
3236	     .rela.plt.  We must create both sections in
3237	     create_dynamic_sections, because they must be created
3238	     before the linker maps input sections to output
3239	     sections.  The linker does that before
3240	     adjust_dynamic_symbol is called, and it is that
3241	     function which decides whether anything needs to go
3242	     into these sections.  */
3243
3244	  s->flags |= SEC_EXCLUDE;
3245	  continue;
3246	}
3247
3248      if ((s->flags & SEC_HAS_CONTENTS) == 0)
3249	continue;
3250
3251      /* Allocate memory for the section contents.  We use bfd_zalloc
3252	 here in case unused entries are not reclaimed before the
3253	 section's contents are written out.  This should not happen,
3254	 but this way if it does, we get a R_SH_NONE reloc instead
3255	 of garbage.  */
3256      s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3257      if (s->contents == NULL)
3258	return FALSE;
3259    }
3260
3261  if (htab->root.dynamic_sections_created)
3262    {
3263      /* Add some entries to the .dynamic section.  We fill in the
3264	 values later, in sh_elf_finish_dynamic_sections, but we
3265	 must add the entries now so that we get the correct size for
3266	 the .dynamic section.  The DT_DEBUG entry is filled in by the
3267	 dynamic linker and used by the debugger.  */
3268#define add_dynamic_entry(TAG, VAL) \
3269  _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3270
3271      if (bfd_link_executable (info))
3272	{
3273	  if (! add_dynamic_entry (DT_DEBUG, 0))
3274	    return FALSE;
3275	}
3276
3277      if (htab->root.splt->size != 0)
3278	{
3279	  if (! add_dynamic_entry (DT_PLTGOT, 0)
3280	      || ! add_dynamic_entry (DT_PLTRELSZ, 0)
3281	      || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
3282	      || ! add_dynamic_entry (DT_JMPREL, 0))
3283	    return FALSE;
3284	}
3285      else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC))
3286	{
3287	  if (! add_dynamic_entry (DT_PLTGOT, 0))
3288	    return FALSE;
3289	}
3290
3291      if (relocs)
3292	{
3293	  if (! add_dynamic_entry (DT_RELA, 0)
3294	      || ! add_dynamic_entry (DT_RELASZ, 0)
3295	      || ! add_dynamic_entry (DT_RELAENT,
3296				      sizeof (Elf32_External_Rela)))
3297	    return FALSE;
3298
3299	  /* If any dynamic relocs apply to a read-only section,
3300	     then we need a DT_TEXTREL entry.  */
3301	  if ((info->flags & DF_TEXTREL) == 0)
3302	    elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
3303
3304	  if ((info->flags & DF_TEXTREL) != 0)
3305	    {
3306	      if (! add_dynamic_entry (DT_TEXTREL, 0))
3307		return FALSE;
3308	    }
3309	}
3310      if (htab->vxworks_p
3311	  && !elf_vxworks_add_dynamic_entries (output_bfd, info))
3312	return FALSE;
3313    }
3314#undef add_dynamic_entry
3315
3316  return TRUE;
3317}
3318
3319/* Add a dynamic relocation to the SRELOC section.  */
3320
3321inline static bfd_vma
3322sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
3323		      int reloc_type, long dynindx, bfd_vma addend)
3324{
3325  Elf_Internal_Rela outrel;
3326  bfd_vma reloc_offset;
3327
3328  outrel.r_offset = offset;
3329  outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
3330  outrel.r_addend = addend;
3331
3332  reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela);
3333  BFD_ASSERT (reloc_offset < sreloc->size);
3334  bfd_elf32_swap_reloca_out (output_bfd, &outrel,
3335			     sreloc->contents + reloc_offset);
3336  sreloc->reloc_count++;
3337
3338  return reloc_offset;
3339}
3340
3341/* Add an FDPIC read-only fixup.  */
3342
3343inline static void
3344sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset)
3345{
3346  bfd_vma fixup_offset;
3347
3348  fixup_offset = srofixup->reloc_count++ * 4;
3349  BFD_ASSERT (fixup_offset < srofixup->size);
3350  bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset);
3351}
3352
3353/* Return the offset of the generated .got section from the
3354   _GLOBAL_OFFSET_TABLE_ symbol.  */
3355
3356static bfd_signed_vma
3357sh_elf_got_offset (struct elf_sh_link_hash_table *htab)
3358{
3359  return (htab->root.sgot->output_offset - htab->root.sgotplt->output_offset
3360	  - htab->root.hgot->root.u.def.value);
3361}
3362
3363/* Find the segment number in which OSEC, and output section, is
3364   located.  */
3365
3366static unsigned
3367sh_elf_osec_to_segment (bfd *output_bfd, asection *osec)
3368{
3369  Elf_Internal_Phdr *p = NULL;
3370
3371  if (output_bfd->xvec->flavour == bfd_target_elf_flavour
3372      /* PR ld/17110: Do not look for output segments in an input bfd.  */
3373      && output_bfd->direction != read_direction)
3374    p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
3375
3376  /* FIXME: Nothing ever says what this index is relative to.  The kernel
3377     supplies data in terms of the number of load segments but this is
3378     a phdr index and the first phdr may not be a load segment.  */
3379  return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
3380}
3381
3382static bfd_boolean
3383sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec)
3384{
3385  unsigned seg = sh_elf_osec_to_segment (output_bfd, osec);
3386
3387  return (seg != (unsigned) -1
3388	  && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W));
3389}
3390
3391/* Generate the initial contents of a local function descriptor, along
3392   with any relocations or fixups required.  */
3393static bfd_boolean
3394sh_elf_initialize_funcdesc (bfd *output_bfd,
3395			    struct bfd_link_info *info,
3396			    struct elf_link_hash_entry *h,
3397			    bfd_vma offset,
3398			    asection *section,
3399			    bfd_vma value)
3400{
3401  struct elf_sh_link_hash_table *htab;
3402  int dynindx;
3403  bfd_vma addr, seg;
3404
3405  htab = sh_elf_hash_table (info);
3406
3407  /* FIXME: The ABI says that the offset to the function goes in the
3408     descriptor, along with the segment index.  We're RELA, so it could
3409     go in the reloc instead... */
3410
3411  if (h != NULL && SYMBOL_CALLS_LOCAL (info, h))
3412    {
3413      section = h->root.u.def.section;
3414      value = h->root.u.def.value;
3415    }
3416
3417  if (h == NULL || SYMBOL_CALLS_LOCAL (info, h))
3418    {
3419      dynindx = elf_section_data (section->output_section)->dynindx;
3420      addr = value + section->output_offset;
3421      seg = sh_elf_osec_to_segment (output_bfd, section->output_section);
3422    }
3423  else
3424    {
3425      BFD_ASSERT (h->dynindx != -1);
3426      dynindx = h->dynindx;
3427      addr = seg = 0;
3428    }
3429
3430  if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
3431    {
3432      if (h == NULL || h->root.type != bfd_link_hash_undefweak)
3433	{
3434	  sh_elf_add_rofixup (output_bfd, htab->srofixup,
3435			      offset
3436			      + htab->sfuncdesc->output_section->vma
3437			      + htab->sfuncdesc->output_offset);
3438	  sh_elf_add_rofixup (output_bfd, htab->srofixup,
3439			      offset + 4
3440			      + htab->sfuncdesc->output_section->vma
3441			      + htab->sfuncdesc->output_offset);
3442	}
3443
3444      /* There are no dynamic relocations so fill in the final
3445	 address and gp value (barring fixups).  */
3446      addr += section->output_section->vma;
3447      seg = htab->root.hgot->root.u.def.value
3448	+ htab->root.hgot->root.u.def.section->output_section->vma
3449	+ htab->root.hgot->root.u.def.section->output_offset;
3450    }
3451  else
3452    sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc,
3453			  offset
3454			  + htab->sfuncdesc->output_section->vma
3455			  + htab->sfuncdesc->output_offset,
3456			  R_SH_FUNCDESC_VALUE, dynindx, 0);
3457
3458  bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset);
3459  bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4);
3460
3461  return TRUE;
3462}
3463
3464/* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3465   VALUE is the field's value.  Return bfd_reloc_ok if successful or an error
3466   otherwise.  */
3467
3468static bfd_reloc_status_type
3469install_movi20_field (bfd *output_bfd, unsigned long relocation,
3470		      bfd *input_bfd, asection *input_section,
3471		      bfd_byte *contents, bfd_vma offset)
3472{
3473  unsigned long cur_val;
3474  bfd_byte *addr;
3475  bfd_reloc_status_type r;
3476
3477  if (offset > bfd_get_section_limit (input_bfd, input_section))
3478    return bfd_reloc_outofrange;
3479
3480  r = bfd_check_overflow (complain_overflow_signed, 20, 0,
3481			  bfd_arch_bits_per_address (input_bfd), relocation);
3482  if (r != bfd_reloc_ok)
3483    return r;
3484
3485  addr = contents + offset;
3486  cur_val = bfd_get_16 (output_bfd, addr);
3487  bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr);
3488  bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2);
3489
3490  return bfd_reloc_ok;
3491}
3492
3493/* Relocate an SH ELF section.  */
3494
3495static bfd_boolean
3496sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3497			 bfd *input_bfd, asection *input_section,
3498			 bfd_byte *contents, Elf_Internal_Rela *relocs,
3499			 Elf_Internal_Sym *local_syms,
3500			 asection **local_sections)
3501{
3502  struct elf_sh_link_hash_table *htab;
3503  Elf_Internal_Shdr *symtab_hdr;
3504  struct elf_link_hash_entry **sym_hashes;
3505  Elf_Internal_Rela *rel, *relend;
3506  bfd_vma *local_got_offsets;
3507  asection *sgot = NULL;
3508  asection *sgotplt = NULL;
3509  asection *splt = NULL;
3510  asection *sreloc = NULL;
3511  asection *srelgot = NULL;
3512  bfd_boolean is_vxworks_tls;
3513  unsigned isec_segment, got_segment, plt_segment, check_segment[2];
3514  bfd_boolean fdpic_p = FALSE;
3515
3516  if (!is_sh_elf (input_bfd))
3517    {
3518      bfd_set_error (bfd_error_wrong_format);
3519      return FALSE;
3520    }
3521
3522  htab = sh_elf_hash_table (info);
3523  if (htab != NULL)
3524    {
3525      sgot = htab->root.sgot;
3526      sgotplt = htab->root.sgotplt;
3527      srelgot = htab->root.srelgot;
3528      splt = htab->root.splt;
3529      fdpic_p = htab->fdpic_p;
3530    }
3531  symtab_hdr = &elf_symtab_hdr (input_bfd);
3532  sym_hashes = elf_sym_hashes (input_bfd);
3533  local_got_offsets = elf_local_got_offsets (input_bfd);
3534
3535  isec_segment = sh_elf_osec_to_segment (output_bfd,
3536					 input_section->output_section);
3537  if (fdpic_p && sgot)
3538    got_segment = sh_elf_osec_to_segment (output_bfd,
3539					  sgot->output_section);
3540  else
3541    got_segment = -1;
3542  if (fdpic_p && splt)
3543    plt_segment = sh_elf_osec_to_segment (output_bfd,
3544					  splt->output_section);
3545  else
3546    plt_segment = -1;
3547
3548  /* We have to handle relocations in vxworks .tls_vars sections
3549     specially, because the dynamic loader is 'weird'.  */
3550  is_vxworks_tls = (htab && htab->vxworks_p && bfd_link_pic (info)
3551		    && !strcmp (input_section->output_section->name,
3552				".tls_vars"));
3553
3554  rel = relocs;
3555  relend = relocs + input_section->reloc_count;
3556  for (; rel < relend; rel++)
3557    {
3558      int r_type;
3559      reloc_howto_type *howto;
3560      unsigned long r_symndx;
3561      Elf_Internal_Sym *sym;
3562      asection *sec;
3563      struct elf_link_hash_entry *h;
3564      bfd_vma relocation;
3565      bfd_vma addend = (bfd_vma) 0;
3566      bfd_reloc_status_type r;
3567      int seen_stt_datalabel = 0;
3568      bfd_vma off;
3569      enum got_type got_type;
3570      const char *symname = NULL;
3571      bfd_boolean resolved_to_zero;
3572
3573      r_symndx = ELF32_R_SYM (rel->r_info);
3574
3575      r_type = ELF32_R_TYPE (rel->r_info);
3576
3577      /* Many of the relocs are only used for relaxing, and are
3578	 handled entirely by the relaxation code.  */
3579      if (r_type >= (int) R_SH_GNU_VTINHERIT
3580	  && r_type <= (int) R_SH_LABEL)
3581	continue;
3582      if (r_type == (int) R_SH_NONE)
3583	continue;
3584
3585      if (r_type < 0
3586	  || r_type >= R_SH_max
3587	  || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
3588	      && r_type <= (int) R_SH_LAST_INVALID_RELOC)
3589	  || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
3590	      && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
3591	  || (   r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
3592	      && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
3593	  || (   r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
3594	      && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
3595	  || (   r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
3596	      && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
3597	  || (   r_type >= (int) R_SH_FIRST_INVALID_RELOC_6
3598	      && r_type <= (int) R_SH_LAST_INVALID_RELOC_6))
3599	{
3600	  bfd_set_error (bfd_error_bad_value);
3601	  return FALSE;
3602	}
3603
3604      howto = get_howto_table (output_bfd) + r_type;
3605
3606      /* For relocs that aren't partial_inplace, we get the addend from
3607	 the relocation.  */
3608      if (! howto->partial_inplace)
3609	addend = rel->r_addend;
3610
3611      resolved_to_zero = FALSE;
3612      h = NULL;
3613      sym = NULL;
3614      sec = NULL;
3615      check_segment[0] = -1;
3616      check_segment[1] = -1;
3617      if (r_symndx < symtab_hdr->sh_info)
3618	{
3619	  sym = local_syms + r_symndx;
3620	  sec = local_sections[r_symndx];
3621
3622	  symname = bfd_elf_string_from_elf_section
3623	    (input_bfd, symtab_hdr->sh_link, sym->st_name);
3624	  if (symname == NULL || *symname == '\0')
3625	    symname = bfd_section_name (sec);
3626
3627	  relocation = (sec->output_section->vma
3628			+ sec->output_offset
3629			+ sym->st_value);
3630	  /* A local symbol never has STO_SH5_ISA32, so we don't need
3631	     datalabel processing here.  Make sure this does not change
3632	     without notice.  */
3633	  if ((sym->st_other & STO_SH5_ISA32) != 0)
3634	    (*info->callbacks->reloc_dangerous)
3635	      (info,
3636	       _("unexpected STO_SH5_ISA32 on local symbol is not handled"),
3637	       input_bfd, input_section, rel->r_offset);
3638
3639	  if (sec != NULL && discarded_section (sec))
3640	    /* Handled below.  */
3641	    ;
3642	  else if (bfd_link_relocatable (info))
3643	    {
3644	      /* This is a relocatable link.  We don't have to change
3645		 anything, unless the reloc is against a section symbol,
3646		 in which case we have to adjust according to where the
3647		 section symbol winds up in the output section.  */
3648	      if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
3649		{
3650		  if (! howto->partial_inplace)
3651		    {
3652		      /* For relocations with the addend in the
3653			 relocation, we need just to update the addend.
3654			 All real relocs are of type partial_inplace; this
3655			 code is mostly for completeness.  */
3656		      rel->r_addend += sec->output_offset;
3657
3658		      continue;
3659		    }
3660
3661		  /* Relocs of type partial_inplace need to pick up the
3662		     contents in the contents and add the offset resulting
3663		     from the changed location of the section symbol.
3664		     Using _bfd_final_link_relocate (e.g. goto
3665		     final_link_relocate) here would be wrong, because
3666		     relocations marked pc_relative would get the current
3667		     location subtracted, and we must only do that at the
3668		     final link.  */
3669		  r = _bfd_relocate_contents (howto, input_bfd,
3670					      sec->output_offset
3671					      + sym->st_value,
3672					      contents + rel->r_offset);
3673		  goto relocation_done;
3674		}
3675
3676	      continue;
3677	    }
3678	  else if (! howto->partial_inplace)
3679	    {
3680	      relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3681	      addend = rel->r_addend;
3682	    }
3683	  else if ((sec->flags & SEC_MERGE)
3684		   && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
3685	    {
3686	      asection *msec;
3687
3688	      if (howto->rightshift || howto->src_mask != 0xffffffff)
3689		{
3690		  _bfd_error_handler
3691		    /* xgettext:c-format */
3692		    (_("%pB(%pA+%#" PRIx64 "): "
3693		       "%s relocation against SEC_MERGE section"),
3694		     input_bfd, input_section,
3695		     (uint64_t) rel->r_offset, howto->name);
3696		  return FALSE;
3697		}
3698
3699	      addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
3700	      msec = sec;
3701	      addend =
3702		_bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
3703		- relocation;
3704	      addend += msec->output_section->vma + msec->output_offset;
3705	      bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
3706	      addend = 0;
3707	    }
3708	}
3709      else
3710	{
3711	  /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro.  */
3712
3713	  relocation = 0;
3714	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3715	  symname = h->root.root.string;
3716	  while (h->root.type == bfd_link_hash_indirect
3717		 || h->root.type == bfd_link_hash_warning)
3718	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
3719	  if (h->root.type == bfd_link_hash_defined
3720	      || h->root.type == bfd_link_hash_defweak)
3721	    {
3722	      bfd_boolean dyn;
3723
3724	      dyn = htab ? htab->root.dynamic_sections_created : FALSE;
3725	      sec = h->root.u.def.section;
3726	      /* In these cases, we don't need the relocation value.
3727		 We check specially because in some obscure cases
3728		 sec->output_section will be NULL.  */
3729	      if (r_type == R_SH_GOTPC
3730		  || r_type == R_SH_GOTPC_LOW16
3731		  || r_type == R_SH_GOTPC_MEDLOW16
3732		  || r_type == R_SH_GOTPC_MEDHI16
3733		  || r_type == R_SH_GOTPC_HI16
3734		  || ((r_type == R_SH_PLT32
3735		       || r_type == R_SH_PLT_LOW16
3736		       || r_type == R_SH_PLT_MEDLOW16
3737		       || r_type == R_SH_PLT_MEDHI16
3738		       || r_type == R_SH_PLT_HI16)
3739		      && h->plt.offset != (bfd_vma) -1)
3740		  || ((r_type == R_SH_GOT32
3741		       || r_type == R_SH_GOT20
3742		       || r_type == R_SH_GOTFUNCDESC
3743		       || r_type == R_SH_GOTFUNCDESC20
3744		       || r_type == R_SH_GOTOFFFUNCDESC
3745		       || r_type == R_SH_GOTOFFFUNCDESC20
3746		       || r_type == R_SH_FUNCDESC
3747		       || r_type == R_SH_GOT_LOW16
3748		       || r_type == R_SH_GOT_MEDLOW16
3749		       || r_type == R_SH_GOT_MEDHI16
3750		       || r_type == R_SH_GOT_HI16)
3751		      && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3752							  bfd_link_pic (info),
3753							  h)
3754		      && (! bfd_link_pic (info)
3755			  || (! info->symbolic && h->dynindx != -1)
3756			  || !h->def_regular))
3757		  /* The cases above are those in which relocation is
3758		     overwritten in the switch block below.  The cases
3759		     below are those in which we must defer relocation
3760		     to run-time, because we can't resolve absolute
3761		     addresses when creating a shared library.  */
3762		  || (bfd_link_pic (info)
3763		      && ((! info->symbolic && h->dynindx != -1)
3764			  || !h->def_regular)
3765		      && ((r_type == R_SH_DIR32
3766			   && !h->forced_local)
3767			  || (r_type == R_SH_REL32
3768			      && !SYMBOL_CALLS_LOCAL (info, h)))
3769		      && ((input_section->flags & SEC_ALLOC) != 0
3770			  /* DWARF will emit R_SH_DIR32 relocations in its
3771			     sections against symbols defined externally
3772			     in shared libraries.  We can't do anything
3773			     with them here.  */
3774			  || ((input_section->flags & SEC_DEBUGGING) != 0
3775			      && h->def_dynamic)))
3776		  /* Dynamic relocs are not propagated for SEC_DEBUGGING
3777		     sections because such sections are not SEC_ALLOC and
3778		     thus ld.so will not process them.  */
3779		  || (sec->output_section == NULL
3780		      && ((input_section->flags & SEC_DEBUGGING) != 0
3781			  && h->def_dynamic))
3782		  || (sec->output_section == NULL
3783		      && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE
3784			  || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD)))
3785		;
3786	      else if (sec->output_section != NULL)
3787		relocation = ((h->root.u.def.value
3788			      + sec->output_section->vma
3789			      + sec->output_offset)
3790			      /* A STO_SH5_ISA32 causes a "bitor 1" to the
3791				 symbol value, unless we've seen
3792				 STT_DATALABEL on the way to it.  */
3793			      | ((h->other & STO_SH5_ISA32) != 0
3794				 && ! seen_stt_datalabel));
3795	      else if (!bfd_link_relocatable (info)
3796		       && (_bfd_elf_section_offset (output_bfd, info,
3797						    input_section,
3798						    rel->r_offset)
3799			   != (bfd_vma) -1))
3800		{
3801		  _bfd_error_handler
3802		    /* xgettext:c-format */
3803		    (_("%pB(%pA+%#" PRIx64 "): "
3804		       "unresolvable %s relocation against symbol `%s'"),
3805		     input_bfd,
3806		     input_section,
3807		     (uint64_t) rel->r_offset,
3808		     howto->name,
3809		     h->root.root.string);
3810		  return FALSE;
3811		}
3812	    }
3813	  else if (h->root.type == bfd_link_hash_undefweak)
3814	    resolved_to_zero = UNDEFWEAK_NO_DYNAMIC_RELOC (info, h);
3815	  else if (info->unresolved_syms_in_objects == RM_IGNORE
3816		   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
3817	    ;
3818	  else if (!bfd_link_relocatable (info))
3819	    (*info->callbacks->undefined_symbol)
3820	      (info, h->root.root.string, input_bfd,
3821	       input_section, rel->r_offset,
3822	       (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
3823		|| ELF_ST_VISIBILITY (h->other)));
3824	}
3825
3826      if (sec != NULL && discarded_section (sec))
3827	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3828					 rel, 1, relend, howto, 0, contents);
3829
3830      if (bfd_link_relocatable (info))
3831	continue;
3832
3833      /* Check for inter-segment relocations in FDPIC files.  Most
3834	 relocations connect the relocation site to the location of
3835	 the target symbol, but there are some exceptions below.  */
3836      check_segment[0] = isec_segment;
3837      if (sec != NULL)
3838	check_segment[1] = sh_elf_osec_to_segment (output_bfd,
3839						   sec->output_section);
3840      else
3841	check_segment[1] = -1;
3842
3843      switch ((int) r_type)
3844	{
3845	final_link_relocate:
3846	  /* COFF relocs don't use the addend. The addend is used for
3847	     R_SH_DIR32 to be compatible with other compilers.  */
3848	  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3849					contents, rel->r_offset,
3850					relocation, addend);
3851	  break;
3852
3853	case R_SH_IND12W:
3854	  goto final_link_relocate;
3855
3856	case R_SH_DIR8WPN:
3857	case R_SH_DIR8WPZ:
3858	case R_SH_DIR8WPL:
3859	  /* If the reloc is against the start of this section, then
3860	     the assembler has already taken care of it and the reloc
3861	     is here only to assist in relaxing.  If the reloc is not
3862	     against the start of this section, then it's against an
3863	     external symbol and we must deal with it ourselves.  */
3864	  if (input_section->output_section->vma + input_section->output_offset
3865	      != relocation)
3866	    {
3867	      int disp = (relocation
3868			  - input_section->output_section->vma
3869			  - input_section->output_offset
3870			  - rel->r_offset);
3871	      int mask = 0;
3872	      switch (r_type)
3873		{
3874		case R_SH_DIR8WPN:
3875		case R_SH_DIR8WPZ: mask = 1; break;
3876		case R_SH_DIR8WPL: mask = 3; break;
3877		default: mask = 0; break;
3878		}
3879	      if (disp & mask)
3880		{
3881		  _bfd_error_handler
3882		    /* xgettext:c-format */
3883		    (_("%pB: %#" PRIx64 ": fatal: "
3884		       "unaligned branch target for relax-support relocation"),
3885		     input_section->owner,
3886		     (uint64_t) rel->r_offset);
3887		  bfd_set_error (bfd_error_bad_value);
3888		  return FALSE;
3889		}
3890	      relocation -= 4;
3891	      goto final_link_relocate;
3892	    }
3893	  r = bfd_reloc_ok;
3894	  break;
3895
3896	default:
3897	  bfd_set_error (bfd_error_bad_value);
3898	  return FALSE;
3899
3900	case R_SH_DIR16:
3901	case R_SH_DIR8:
3902	case R_SH_DIR8U:
3903	case R_SH_DIR8S:
3904	case R_SH_DIR4U:
3905	  goto final_link_relocate;
3906
3907	case R_SH_DIR8UL:
3908	case R_SH_DIR4UL:
3909	  if (relocation & 3)
3910	    {
3911	      _bfd_error_handler
3912		/* xgettext:c-format */
3913		(_("%pB: %#" PRIx64 ": fatal: "
3914		   "unaligned %s relocation %#" PRIx64),
3915		 input_section->owner, (uint64_t) rel->r_offset,
3916		 howto->name, (uint64_t) relocation);
3917	      bfd_set_error (bfd_error_bad_value);
3918	      return FALSE;
3919	    }
3920	  goto final_link_relocate;
3921
3922	case R_SH_DIR8UW:
3923	case R_SH_DIR8SW:
3924	case R_SH_DIR4UW:
3925	  if (relocation & 1)
3926	    {
3927	      _bfd_error_handler
3928		/* xgettext:c-format */
3929		(_("%pB: %#" PRIx64 ": fatal: "
3930		   "unaligned %s relocation %#" PRIx64 ""),
3931		 input_section->owner,
3932		 (uint64_t) rel->r_offset, howto->name,
3933		 (uint64_t) relocation);
3934	      bfd_set_error (bfd_error_bad_value);
3935	      return FALSE;
3936	    }
3937	  goto final_link_relocate;
3938
3939	case R_SH_PSHA:
3940	  if ((signed int)relocation < -32
3941	      || (signed int)relocation > 32)
3942	    {
3943	      _bfd_error_handler
3944		/* xgettext:c-format */
3945		(_("%pB: %#" PRIx64 ": fatal: R_SH_PSHA relocation %" PRId64
3946		   " not in range -32..32"),
3947		 input_section->owner,
3948		 (uint64_t) rel->r_offset,
3949		 (int64_t) relocation);
3950	      bfd_set_error (bfd_error_bad_value);
3951	      return FALSE;
3952	    }
3953	  goto final_link_relocate;
3954
3955	case R_SH_PSHL:
3956	  if ((signed int)relocation < -16
3957	      || (signed int)relocation > 16)
3958	    {
3959	      _bfd_error_handler
3960		/* xgettext:c-format */
3961		(_("%pB: %#" PRIx64 ": fatal: R_SH_PSHL relocation %" PRId64
3962		   " not in range -32..32"),
3963		 input_section->owner,
3964		 (uint64_t) rel->r_offset,
3965		 (int64_t) relocation);
3966	      bfd_set_error (bfd_error_bad_value);
3967	      return FALSE;
3968	    }
3969	  goto final_link_relocate;
3970
3971	case R_SH_DIR32:
3972	case R_SH_REL32:
3973	  if (bfd_link_pic (info)
3974	      && (h == NULL
3975		  || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3976		      && !resolved_to_zero)
3977		  || h->root.type != bfd_link_hash_undefweak)
3978	      && r_symndx != STN_UNDEF
3979	      && (input_section->flags & SEC_ALLOC) != 0
3980	      && !is_vxworks_tls
3981	      && (r_type == R_SH_DIR32
3982		  || !SYMBOL_CALLS_LOCAL (info, h)))
3983	    {
3984	      Elf_Internal_Rela outrel;
3985	      bfd_byte *loc;
3986	      bfd_boolean skip, relocate;
3987
3988	      /* When generating a shared object, these relocations
3989		 are copied into the output file to be resolved at run
3990		 time.  */
3991
3992	      if (sreloc == NULL)
3993		{
3994		  sreloc = _bfd_elf_get_dynamic_reloc_section
3995		    (input_bfd, input_section, /*rela?*/ TRUE);
3996		  if (sreloc == NULL)
3997		    return FALSE;
3998		}
3999
4000	      skip = FALSE;
4001	      relocate = FALSE;
4002
4003	      outrel.r_offset =
4004		_bfd_elf_section_offset (output_bfd, info, input_section,
4005					 rel->r_offset);
4006	      if (outrel.r_offset == (bfd_vma) -1)
4007		skip = TRUE;
4008	      else if (outrel.r_offset == (bfd_vma) -2)
4009		skip = TRUE, relocate = TRUE;
4010	      outrel.r_offset += (input_section->output_section->vma
4011				  + input_section->output_offset);
4012
4013	      if (skip)
4014		memset (&outrel, 0, sizeof outrel);
4015	      else if (r_type == R_SH_REL32)
4016		{
4017		  BFD_ASSERT (h != NULL && h->dynindx != -1);
4018		  outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
4019		  outrel.r_addend
4020		    = (howto->partial_inplace
4021		       ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4022		       : addend);
4023		}
4024	      else if (fdpic_p
4025		       && (h == NULL
4026			   || ((info->symbolic || h->dynindx == -1)
4027			       && h->def_regular)))
4028		{
4029		  int dynindx;
4030
4031		  BFD_ASSERT (sec != NULL);
4032		  BFD_ASSERT (sec->output_section != NULL);
4033		  dynindx = elf_section_data (sec->output_section)->dynindx;
4034		  outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4035		  outrel.r_addend = relocation;
4036		  outrel.r_addend
4037		    += (howto->partial_inplace
4038			? bfd_get_32 (input_bfd, contents + rel->r_offset)
4039			: addend);
4040		  outrel.r_addend -= sec->output_section->vma;
4041		}
4042	      else
4043		{
4044		  /* h->dynindx may be -1 if this symbol was marked to
4045		     become local.  */
4046		  if (h == NULL
4047		      || ((info->symbolic || h->dynindx == -1)
4048			  && h->def_regular))
4049		    {
4050		      relocate = howto->partial_inplace;
4051		      outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4052		    }
4053		  else
4054		    {
4055		      BFD_ASSERT (h->dynindx != -1);
4056		      outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
4057		    }
4058		  outrel.r_addend = relocation;
4059		  outrel.r_addend
4060		    += (howto->partial_inplace
4061			? bfd_get_32 (input_bfd, contents + rel->r_offset)
4062			: addend);
4063		}
4064
4065	      loc = sreloc->contents;
4066	      loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4067	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4068
4069	      check_segment[0] = check_segment[1] = -1;
4070
4071	      /* If this reloc is against an external symbol, we do
4072		 not want to fiddle with the addend.  Otherwise, we
4073		 need to include the symbol value so that it becomes
4074		 an addend for the dynamic reloc.  */
4075	      if (! relocate)
4076		continue;
4077	    }
4078	  else if (fdpic_p && !bfd_link_pic (info)
4079		   && r_type == R_SH_DIR32
4080		   && (input_section->flags & SEC_ALLOC) != 0)
4081	    {
4082	      bfd_vma offset;
4083
4084	      BFD_ASSERT (htab);
4085
4086		if (sh_elf_osec_readonly_p (output_bfd,
4087					    input_section->output_section))
4088		  {
4089		    _bfd_error_handler
4090		      /* xgettext:c-format */
4091		      (_("%pB(%pA+%#" PRIx64 "): "
4092			 "cannot emit fixup to `%s' in read-only section"),
4093		       input_bfd,
4094		       input_section,
4095		       (uint64_t) rel->r_offset,
4096		       symname);
4097		    return FALSE;
4098		  }
4099
4100	      offset = _bfd_elf_section_offset (output_bfd, info,
4101						input_section, rel->r_offset);
4102	      if (offset != (bfd_vma)-1)
4103		sh_elf_add_rofixup (output_bfd, htab->srofixup,
4104				    input_section->output_section->vma
4105				    + input_section->output_offset
4106				    + rel->r_offset);
4107
4108	      check_segment[0] = check_segment[1] = -1;
4109	    }
4110	    /* We don't want warnings for non-NULL tests on undefined weak
4111	       symbols.  */
4112	    else if (r_type == R_SH_REL32
4113		     && h
4114		     && h->root.type == bfd_link_hash_undefweak)
4115	      check_segment[0] = check_segment[1] = -1;
4116	  goto final_link_relocate;
4117
4118	case R_SH_GOTPLT32:
4119	  /* Relocation is to the entry for this symbol in the
4120	     procedure linkage table.  */
4121
4122	  if (h == NULL
4123	      || h->forced_local
4124	      || ! bfd_link_pic (info)
4125	      || info->symbolic
4126	      || h->dynindx == -1
4127	      || h->plt.offset == (bfd_vma) -1
4128	      || h->got.offset != (bfd_vma) -1)
4129	    goto force_got;
4130
4131	  /* Relocation is to the entry for this symbol in the global
4132	     offset table extension for the procedure linkage table.  */
4133
4134	  BFD_ASSERT (htab);
4135	  BFD_ASSERT (sgotplt != NULL);
4136	  relocation = (sgotplt->output_offset
4137			+ (get_plt_index (htab->plt_info, h->plt.offset)
4138			   + 3) * 4);
4139
4140#ifdef GOT_BIAS
4141	  relocation -= GOT_BIAS;
4142#endif
4143
4144	  goto final_link_relocate;
4145
4146	force_got:
4147	case R_SH_GOT32:
4148	case R_SH_GOT20:
4149	  /* Relocation is to the entry for this symbol in the global
4150	     offset table.  */
4151
4152	  BFD_ASSERT (htab);
4153	  BFD_ASSERT (sgot != NULL);
4154	  check_segment[0] = check_segment[1] = -1;
4155
4156	  if (h != NULL)
4157	    {
4158	      bfd_boolean dyn;
4159
4160	      off = h->got.offset;
4161	      BFD_ASSERT (off != (bfd_vma) -1);
4162
4163	      dyn = htab->root.dynamic_sections_created;
4164	      if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4165						     bfd_link_pic (info),
4166						     h)
4167		  || (bfd_link_pic (info)
4168		      && SYMBOL_REFERENCES_LOCAL (info, h))
4169		  || ((ELF_ST_VISIBILITY (h->other)
4170		       || resolved_to_zero)
4171		      && h->root.type == bfd_link_hash_undefweak))
4172		{
4173		  /* This is actually a static link, or it is a
4174		     -Bsymbolic link and the symbol is defined
4175		     locally, or the symbol was forced to be local
4176		     because of a version file.  We must initialize
4177		     this entry in the global offset table.  Since the
4178		     offset must always be a multiple of 4, we use the
4179		     least significant bit to record whether we have
4180		     initialized it already.
4181
4182		     When doing a dynamic link, we create a .rela.got
4183		     relocation entry to initialize the value.  This
4184		     is done in the finish_dynamic_symbol routine.  */
4185		  if ((off & 1) != 0)
4186		    off &= ~1;
4187		  else
4188		    {
4189		      bfd_put_32 (output_bfd, relocation,
4190				  sgot->contents + off);
4191		      h->got.offset |= 1;
4192
4193		      /* If we initialize the GOT entry here with a valid
4194			 symbol address, also add a fixup.  */
4195		      if (fdpic_p && !bfd_link_pic (info)
4196			  && sh_elf_hash_entry (h)->got_type == GOT_NORMAL
4197			  && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4198			      || h->root.type != bfd_link_hash_undefweak))
4199			sh_elf_add_rofixup (output_bfd, htab->srofixup,
4200					    sgot->output_section->vma
4201					    + sgot->output_offset
4202					    + off);
4203		    }
4204		}
4205
4206	      relocation = sh_elf_got_offset (htab) + off;
4207	    }
4208	  else
4209	    {
4210	      BFD_ASSERT (local_got_offsets != NULL
4211			  && local_got_offsets[r_symndx] != (bfd_vma) -1);
4212
4213	      off = local_got_offsets[r_symndx];
4214
4215	      /* The offset must always be a multiple of 4.  We use
4216		 the least significant bit to record whether we have
4217		 already generated the necessary reloc.  */
4218	      if ((off & 1) != 0)
4219		off &= ~1;
4220	      else
4221		{
4222		  bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4223
4224		  if (bfd_link_pic (info))
4225		    {
4226		      Elf_Internal_Rela outrel;
4227		      bfd_byte *loc;
4228
4229		      outrel.r_offset = (sgot->output_section->vma
4230					 + sgot->output_offset
4231					 + off);
4232		      if (fdpic_p)
4233			{
4234			  int dynindx
4235			    = elf_section_data (sec->output_section)->dynindx;
4236			  outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4237			  outrel.r_addend = relocation;
4238			  outrel.r_addend -= sec->output_section->vma;
4239			}
4240		      else
4241			{
4242			  outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4243			  outrel.r_addend = relocation;
4244			}
4245		      loc = srelgot->contents;
4246		      loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4247		      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4248		    }
4249		  else if (fdpic_p
4250			   && (sh_elf_local_got_type (input_bfd) [r_symndx]
4251			       == GOT_NORMAL))
4252		    sh_elf_add_rofixup (output_bfd, htab->srofixup,
4253					sgot->output_section->vma
4254					+ sgot->output_offset
4255					+ off);
4256
4257		  local_got_offsets[r_symndx] |= 1;
4258		}
4259
4260	      relocation = sh_elf_got_offset (htab) + off;
4261	    }
4262
4263#ifdef GOT_BIAS
4264	  relocation -= GOT_BIAS;
4265#endif
4266
4267	  if (r_type == R_SH_GOT20)
4268	    {
4269	      r = install_movi20_field (output_bfd, relocation + addend,
4270					input_bfd, input_section, contents,
4271					rel->r_offset);
4272	      break;
4273	    }
4274	  else
4275	    goto final_link_relocate;
4276
4277	case R_SH_GOTOFF:
4278	case R_SH_GOTOFF20:
4279	  /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
4280	     we place at the start of the .got.plt section.  This is the same
4281	     as the start of the output .got section, unless there are function
4282	     descriptors in front of it.  */
4283	  BFD_ASSERT (htab);
4284	  BFD_ASSERT (sgotplt != NULL);
4285	  check_segment[0] = got_segment;
4286	  relocation -= sgotplt->output_section->vma + sgotplt->output_offset
4287	    + htab->root.hgot->root.u.def.value;
4288
4289#ifdef GOT_BIAS
4290	  relocation -= GOT_BIAS;
4291#endif
4292
4293	  addend = rel->r_addend;
4294
4295	  if (r_type == R_SH_GOTOFF20)
4296	    {
4297	      r = install_movi20_field (output_bfd, relocation + addend,
4298					input_bfd, input_section, contents,
4299					rel->r_offset);
4300	      break;
4301	    }
4302	  else
4303	    goto final_link_relocate;
4304
4305	case R_SH_GOTPC:
4306	  /* Use global offset table as symbol value.  */
4307
4308	  BFD_ASSERT (sgotplt != NULL);
4309	  relocation = sgotplt->output_section->vma + sgotplt->output_offset;
4310
4311#ifdef GOT_BIAS
4312	  relocation += GOT_BIAS;
4313#endif
4314
4315	  addend = rel->r_addend;
4316
4317	  goto final_link_relocate;
4318
4319	case R_SH_PLT32:
4320	  /* Relocation is to the entry for this symbol in the
4321	     procedure linkage table.  */
4322
4323	  /* Resolve a PLT reloc against a local symbol directly,
4324	     without using the procedure linkage table.  */
4325	  if (h == NULL)
4326	    goto final_link_relocate;
4327
4328	  /* We don't want to warn on calls to undefined weak symbols,
4329	     as calls to them must be protected by non-NULL tests
4330	     anyway, and unprotected calls would invoke undefined
4331	     behavior.  */
4332	  if (h->root.type == bfd_link_hash_undefweak)
4333	    check_segment[0] = check_segment[1] = -1;
4334
4335	  if (h->forced_local)
4336	    goto final_link_relocate;
4337
4338	  if (h->plt.offset == (bfd_vma) -1)
4339	    {
4340	      /* We didn't make a PLT entry for this symbol.  This
4341		 happens when statically linking PIC code, or when
4342		 using -Bsymbolic.  */
4343	      goto final_link_relocate;
4344	    }
4345
4346	  BFD_ASSERT (splt != NULL);
4347	  check_segment[1] = plt_segment;
4348	  relocation = (splt->output_section->vma
4349			+ splt->output_offset
4350			+ h->plt.offset);
4351
4352	  addend = rel->r_addend;
4353
4354	  goto final_link_relocate;
4355
4356	/* Relocation is to the canonical function descriptor for this
4357	   symbol, possibly via the GOT.  Initialize the GOT
4358	   entry and function descriptor if necessary.  */
4359	case R_SH_GOTFUNCDESC:
4360	case R_SH_GOTFUNCDESC20:
4361	case R_SH_FUNCDESC:
4362	  {
4363	    int dynindx = -1;
4364	    asection *reloc_section;
4365	    bfd_vma reloc_offset;
4366	    int reloc_type = R_SH_FUNCDESC;
4367
4368	    BFD_ASSERT (htab);
4369
4370	    check_segment[0] = check_segment[1] = -1;
4371
4372	    /* FIXME: See what FRV does for global symbols in the
4373	       executable, with --export-dynamic.  Do they need ld.so
4374	       to allocate official descriptors?  See what this code
4375	       does.  */
4376
4377	    relocation = 0;
4378	    addend = 0;
4379
4380	    if (r_type == R_SH_FUNCDESC)
4381	      {
4382		reloc_section = input_section;
4383		reloc_offset = rel->r_offset;
4384	      }
4385	    else
4386	      {
4387		reloc_section = sgot;
4388
4389		if (h != NULL)
4390		  reloc_offset = h->got.offset;
4391		else
4392		  {
4393		    BFD_ASSERT (local_got_offsets != NULL);
4394		    reloc_offset = local_got_offsets[r_symndx];
4395		  }
4396		BFD_ASSERT (reloc_offset != MINUS_ONE);
4397
4398		if (reloc_offset & 1)
4399		  {
4400		    reloc_offset &= ~1;
4401		    goto funcdesc_done_got;
4402		  }
4403	      }
4404
4405	    if (h && h->root.type == bfd_link_hash_undefweak
4406		&& (SYMBOL_CALLS_LOCAL (info, h)
4407		    || !htab->root.dynamic_sections_created))
4408	      /* Undefined weak symbol which will not be dynamically
4409		 resolved later; leave it at zero.  */
4410	      goto funcdesc_leave_zero;
4411	    else if (SYMBOL_CALLS_LOCAL (info, h)
4412		     && ! SYMBOL_FUNCDESC_LOCAL (info, h))
4413	      {
4414		/* If the symbol needs a non-local function descriptor
4415		   but binds locally (i.e., its visibility is
4416		   protected), emit a dynamic relocation decayed to
4417		   section+offset.  This is an optimization; the dynamic
4418		   linker would resolve our function descriptor request
4419		   to our copy of the function anyway.  */
4420		dynindx = elf_section_data (h->root.u.def.section
4421					    ->output_section)->dynindx;
4422		relocation += h->root.u.def.section->output_offset
4423		  + h->root.u.def.value;
4424	      }
4425	    else if (! SYMBOL_FUNCDESC_LOCAL (info, h))
4426	      {
4427		/* If the symbol is dynamic and there will be dynamic
4428		   symbol resolution because we are or are linked with a
4429		   shared library, emit a FUNCDESC relocation such that
4430		   the dynamic linker will allocate the function
4431		   descriptor.  */
4432		BFD_ASSERT (h->dynindx != -1);
4433		dynindx = h->dynindx;
4434	      }
4435	    else
4436	      {
4437		bfd_vma offset;
4438
4439		/* Otherwise, we know we have a private function
4440		   descriptor, so reference it directly.  */
4441		reloc_type = R_SH_DIR32;
4442		dynindx = elf_section_data (htab->sfuncdesc
4443					    ->output_section)->dynindx;
4444
4445		if (h)
4446		  {
4447		    offset = sh_elf_hash_entry (h)->funcdesc.offset;
4448		    BFD_ASSERT (offset != MINUS_ONE);
4449		    if ((offset & 1) == 0)
4450		      {
4451			if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4452							 offset, NULL, 0))
4453			  return FALSE;
4454			sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4455		      }
4456		  }
4457		else
4458		  {
4459		    union gotref *local_funcdesc;
4460
4461		    local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4462		    offset = local_funcdesc[r_symndx].offset;
4463		    BFD_ASSERT (offset != MINUS_ONE);
4464		    if ((offset & 1) == 0)
4465		      {
4466			if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4467							 offset, sec,
4468							 sym->st_value))
4469			  return FALSE;
4470			local_funcdesc[r_symndx].offset |= 1;
4471		      }
4472		  }
4473
4474		relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4475	      }
4476
4477	    if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
4478	      {
4479		bfd_vma offset;
4480
4481		if (sh_elf_osec_readonly_p (output_bfd,
4482					    reloc_section->output_section))
4483		  {
4484		    _bfd_error_handler
4485		      /* xgettext:c-format */
4486		      (_("%pB(%pA+%#" PRIx64 "): "
4487			 "cannot emit fixup to `%s' in read-only section"),
4488		       input_bfd,
4489		       input_section,
4490		       (uint64_t) rel->r_offset,
4491		       symname);
4492		    return FALSE;
4493		  }
4494
4495		offset = _bfd_elf_section_offset (output_bfd, info,
4496						  reloc_section, reloc_offset);
4497
4498		if (offset != (bfd_vma)-1)
4499		  sh_elf_add_rofixup (output_bfd, htab->srofixup,
4500				      offset
4501				      + reloc_section->output_section->vma
4502				      + reloc_section->output_offset);
4503	      }
4504	    else if ((reloc_section->output_section->flags
4505		      & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
4506	      {
4507		bfd_vma offset;
4508
4509		if (sh_elf_osec_readonly_p (output_bfd,
4510					    reloc_section->output_section))
4511		  {
4512		    info->callbacks->warning
4513		      (info,
4514		       _("cannot emit dynamic relocations in read-only section"),
4515		       symname, input_bfd, reloc_section, reloc_offset);
4516		    return FALSE;
4517		  }
4518
4519		offset = _bfd_elf_section_offset (output_bfd, info,
4520						  reloc_section, reloc_offset);
4521
4522		if (offset != (bfd_vma)-1)
4523		  sh_elf_add_dyn_reloc (output_bfd, srelgot,
4524					offset
4525					+ reloc_section->output_section->vma
4526					+ reloc_section->output_offset,
4527					reloc_type, dynindx, relocation);
4528
4529		if (r_type == R_SH_FUNCDESC)
4530		  {
4531		    r = bfd_reloc_ok;
4532		    break;
4533		  }
4534		else
4535		  {
4536		    relocation = 0;
4537		    goto funcdesc_leave_zero;
4538		  }
4539	      }
4540
4541	    if (SYMBOL_FUNCDESC_LOCAL (info, h))
4542	      relocation += htab->sfuncdesc->output_section->vma;
4543	  funcdesc_leave_zero:
4544	    if (r_type != R_SH_FUNCDESC)
4545	      {
4546		bfd_put_32 (output_bfd, relocation,
4547			    reloc_section->contents + reloc_offset);
4548		if (h != NULL)
4549		  h->got.offset |= 1;
4550		else
4551		  local_got_offsets[r_symndx] |= 1;
4552
4553	      funcdesc_done_got:
4554
4555		relocation = sh_elf_got_offset (htab) + reloc_offset;
4556#ifdef GOT_BIAS
4557		relocation -= GOT_BIAS;
4558#endif
4559	      }
4560	    if (r_type == R_SH_GOTFUNCDESC20)
4561	      {
4562		r = install_movi20_field (output_bfd, relocation + addend,
4563					  input_bfd, input_section, contents,
4564					  rel->r_offset);
4565		break;
4566	      }
4567	    else
4568	      goto final_link_relocate;
4569	  }
4570	  break;
4571
4572	case R_SH_GOTOFFFUNCDESC:
4573	case R_SH_GOTOFFFUNCDESC20:
4574	  /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
4575	     executable and --export-dynamic.  If such symbols get
4576	     ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
4577	     for them.  */
4578	  BFD_ASSERT (htab);
4579
4580	  check_segment[0] = check_segment[1] = -1;
4581	  relocation = 0;
4582	  addend = rel->r_addend;
4583
4584	  if (h && (h->root.type == bfd_link_hash_undefweak
4585		    || !SYMBOL_FUNCDESC_LOCAL (info, h)))
4586	    {
4587	      _bfd_error_handler
4588		/* xgettext:c-format */
4589		(_("%pB(%pA+%#" PRIx64 "): "
4590		   "%s relocation against external symbol \"%s\""),
4591		 input_bfd, input_section, (uint64_t) rel->r_offset,
4592		 howto->name, h->root.root.string);
4593	      return FALSE;
4594	    }
4595	  else
4596	    {
4597	      bfd_vma offset;
4598
4599	      /* Otherwise, we know we have a private function
4600		 descriptor, so reference it directly.  */
4601	      if (h)
4602		{
4603		  offset = sh_elf_hash_entry (h)->funcdesc.offset;
4604		  BFD_ASSERT (offset != MINUS_ONE);
4605		  if ((offset & 1) == 0)
4606		    {
4607		      if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4608						       offset, NULL, 0))
4609			return FALSE;
4610		      sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4611		    }
4612		}
4613	      else
4614		{
4615		  union gotref *local_funcdesc;
4616
4617		  local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4618		  offset = local_funcdesc[r_symndx].offset;
4619		  BFD_ASSERT (offset != MINUS_ONE);
4620		  if ((offset & 1) == 0)
4621		    {
4622		      if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4623						       offset, sec,
4624						       sym->st_value))
4625			return FALSE;
4626		      local_funcdesc[r_symndx].offset |= 1;
4627		    }
4628		}
4629
4630	      relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4631	    }
4632
4633	  relocation -= (htab->root.hgot->root.u.def.value
4634			 + sgotplt->output_offset);
4635#ifdef GOT_BIAS
4636	  relocation -= GOT_BIAS;
4637#endif
4638
4639	  if (r_type == R_SH_GOTOFFFUNCDESC20)
4640	    {
4641	      r = install_movi20_field (output_bfd, relocation + addend,
4642					input_bfd, input_section, contents,
4643					rel->r_offset);
4644	      break;
4645	    }
4646	  else
4647	    goto final_link_relocate;
4648
4649	case R_SH_LOOP_START:
4650	  {
4651	    static bfd_vma start, end;
4652
4653	    start = (relocation + rel->r_addend
4654		     - (sec->output_section->vma + sec->output_offset));
4655	    r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4656				   rel->r_offset, sec, start, end);
4657	    break;
4658
4659	case R_SH_LOOP_END:
4660	    end = (relocation + rel->r_addend
4661		   - (sec->output_section->vma + sec->output_offset));
4662	    r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4663				   rel->r_offset, sec, start, end);
4664	    break;
4665	  }
4666
4667	case R_SH_TLS_GD_32:
4668	case R_SH_TLS_IE_32:
4669	  BFD_ASSERT (htab);
4670	  check_segment[0] = check_segment[1] = -1;
4671	  r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
4672	  got_type = GOT_UNKNOWN;
4673	  if (h == NULL && local_got_offsets)
4674	    got_type = sh_elf_local_got_type (input_bfd) [r_symndx];
4675	  else if (h != NULL)
4676	    {
4677	      got_type = sh_elf_hash_entry (h)->got_type;
4678	      if (! bfd_link_pic (info)
4679		  && (h->dynindx == -1
4680		      || h->def_regular))
4681		r_type = R_SH_TLS_LE_32;
4682	    }
4683
4684	  if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE)
4685	    r_type = R_SH_TLS_IE_32;
4686
4687	  if (r_type == R_SH_TLS_LE_32)
4688	    {
4689	      bfd_vma offset;
4690	      unsigned short insn;
4691
4692	      if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
4693		{
4694		  /* GD->LE transition:
4695		       mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4696		       jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4697		       1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4698		     We change it into:
4699		       mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
4700		       nop; nop; ...
4701		       1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:.  */
4702
4703		  offset = rel->r_offset;
4704		  if (offset < 16)
4705		    {
4706		      _bfd_error_handler
4707			/* xgettext:c-format */
4708			(_("%pB(%pA): offset in relocation for GD->LE translation is too small: %#" PRIx64),
4709			 input_bfd, input_section, (uint64_t) offset);
4710		      return FALSE;
4711		    }
4712
4713		  /* Size of GD instructions is 16 or 18.  */
4714		  offset -= 16;
4715		  insn = bfd_get_16 (input_bfd, contents + offset + 0);
4716		  if ((insn & 0xff00) == 0xc700)
4717		    {
4718		      BFD_ASSERT (offset >= 2);
4719		      offset -= 2;
4720		      insn = bfd_get_16 (input_bfd, contents + offset + 0);
4721		    }
4722
4723		  if ((insn & 0xff00) != 0xd400)
4724		    _bfd_error_handler
4725		      /* xgettext:c-format */  /* The backslash is to prevent bogus trigraph detection.  */
4726		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd4?\?)"),
4727		       input_bfd, input_section, (uint64_t) offset, (int) insn);
4728
4729		  insn = bfd_get_16 (input_bfd, contents + offset + 2);
4730
4731		  if ((insn & 0xff00) != 0xc700)
4732		    _bfd_error_handler
4733		      /* xgettext:c-format */
4734		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xc7?\?)"),
4735		       input_bfd, input_section, (uint64_t) offset, (int) insn);
4736
4737		  insn = bfd_get_16 (input_bfd, contents + offset + 4);
4738		  if ((insn & 0xff00) != 0xd100)
4739		    _bfd_error_handler
4740		      /* xgettext:c-format */
4741		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd1?\?)"),
4742		       input_bfd, input_section, (uint64_t) offset, (int) insn);
4743
4744		  insn = bfd_get_16 (input_bfd, contents + offset + 6);
4745		  if (insn != 0x310c)
4746		    _bfd_error_handler
4747		      /* xgettext:c-format */
4748		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x310c)"),
4749		       input_bfd, input_section, (uint64_t) offset, (int) insn);
4750
4751		  insn = bfd_get_16 (input_bfd, contents + offset + 8);
4752		  if (insn != 0x410b)
4753		    _bfd_error_handler
4754		      /* xgettext:c-format */
4755		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x410b)"),
4756		       input_bfd, input_section, (uint64_t) offset, (int) insn);
4757
4758		  insn = bfd_get_16 (input_bfd, contents + offset + 10);
4759		  if (insn != 0x34cc)
4760		    _bfd_error_handler
4761		      /* xgettext:c-format */
4762		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x34cc)"),
4763		       input_bfd, input_section, (uint64_t) offset, (int) insn);
4764
4765		  bfd_put_16 (output_bfd, 0x0012, contents + offset + 2);
4766		  bfd_put_16 (output_bfd, 0x304c, contents + offset + 4);
4767		  bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
4768		  bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4769		  bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4770		}
4771	      else
4772		{
4773		  int target;
4774
4775		  /* IE->LE transition:
4776		         mov.l 1f,r0;
4777		         stc gbr,rN;
4778		         mov.l @(r0,r12),rM;
4779		         bra 2f;
4780		         add ...;
4781		         .align 2;
4782		       1: x@GOTTPOFF;
4783		       2:
4784		     We change it into:
4785		         mov.l .Ln,rM;
4786			 stc gbr,rN;
4787			 nop;
4788			 ...;
4789		       1: x@TPOFF;
4790		       2:.  */
4791
4792		  offset = rel->r_offset;
4793		  if (offset < 16)
4794		    {
4795		      _bfd_error_handler
4796			/* xgettext:c-format */
4797			(_("%pB(%pA): offset in relocation for IE->LE translation is too small: %#" PRIx64),
4798			 input_bfd, input_section, (uint64_t) offset);
4799		      return FALSE;
4800		    }
4801
4802		  /* Size of IE instructions is 10 or 12.  */
4803		  offset -= 10;
4804		  insn = bfd_get_16 (input_bfd, contents + offset + 0);
4805		  if ((insn & 0xf0ff) == 0x0012)
4806		    {
4807		      BFD_ASSERT (offset >= 2);
4808		      offset -= 2;
4809		      insn = bfd_get_16 (input_bfd, contents + offset + 0);
4810		    }
4811
4812		  if ((insn & 0xff00) != 0xd000)
4813		    _bfd_error_handler
4814		      /* xgettext:c-format */
4815		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd0??: mov.l)"),
4816		       input_bfd, input_section, (uint64_t) offset, (int) insn);
4817
4818		  target = insn & 0x00ff;
4819
4820		  insn = bfd_get_16 (input_bfd, contents + offset + 2);
4821		  if ((insn & 0xf0ff) != 0x0012)
4822		    _bfd_error_handler
4823		      /* xgettext:c-format */
4824		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?12: stc)"),
4825		       input_bfd, input_section, (uint64_t) (offset + 2), (int) insn);
4826
4827		  insn = bfd_get_16 (input_bfd, contents + offset + 4);
4828		  if ((insn & 0xf0ff) != 0x00ce)
4829		    _bfd_error_handler
4830		      /* xgettext:c-format */
4831		      (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?ce: mov.l)"),
4832		       input_bfd, input_section, (uint64_t) (offset + 4), (int) insn);
4833
4834		  insn = 0xd000 | (insn & 0x0f00) | target;
4835		  bfd_put_16 (output_bfd, insn, contents + offset + 0);
4836		  bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
4837		}
4838
4839	      bfd_put_32 (output_bfd, tpoff (info, relocation),
4840			  contents + rel->r_offset);
4841	      continue;
4842	    }
4843
4844	  if (sgot == NULL || sgotplt == NULL)
4845	    abort ();
4846
4847	  if (h != NULL)
4848	    off = h->got.offset;
4849	  else
4850	    {
4851	      if (local_got_offsets == NULL)
4852		abort ();
4853
4854	      off = local_got_offsets[r_symndx];
4855	    }
4856
4857	  /* Relocate R_SH_TLS_IE_32 directly when statically linking.  */
4858	  if (r_type == R_SH_TLS_IE_32
4859	      && ! htab->root.dynamic_sections_created)
4860	    {
4861	      off &= ~1;
4862	      bfd_put_32 (output_bfd, tpoff (info, relocation),
4863			  sgot->contents + off);
4864	      bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
4865			  contents + rel->r_offset);
4866	      continue;
4867	    }
4868
4869	  if ((off & 1) != 0)
4870	    off &= ~1;
4871	  else
4872	    {
4873	      Elf_Internal_Rela outrel;
4874	      bfd_byte *loc;
4875	      int dr_type, indx;
4876
4877	      outrel.r_offset = (sgot->output_section->vma
4878				 + sgot->output_offset + off);
4879
4880	      if (h == NULL || h->dynindx == -1)
4881		indx = 0;
4882	      else
4883		indx = h->dynindx;
4884
4885	      dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
4886			 R_SH_TLS_TPOFF32);
4887	      if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
4888		outrel.r_addend = relocation - dtpoff_base (info);
4889	      else
4890		outrel.r_addend = 0;
4891	      outrel.r_info = ELF32_R_INFO (indx, dr_type);
4892	      loc = srelgot->contents;
4893	      loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4894	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4895
4896	      if (r_type == R_SH_TLS_GD_32)
4897		{
4898		  if (indx == 0)
4899		    {
4900		      bfd_put_32 (output_bfd,
4901				  relocation - dtpoff_base (info),
4902				  sgot->contents + off + 4);
4903		    }
4904		  else
4905		    {
4906		      outrel.r_info = ELF32_R_INFO (indx,
4907						    R_SH_TLS_DTPOFF32);
4908		      outrel.r_offset += 4;
4909		      outrel.r_addend = 0;
4910		      srelgot->reloc_count++;
4911		      loc += sizeof (Elf32_External_Rela);
4912		      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4913		    }
4914		}
4915
4916	      if (h != NULL)
4917		h->got.offset |= 1;
4918	      else
4919		local_got_offsets[r_symndx] |= 1;
4920	    }
4921
4922	  if (off >= (bfd_vma) -2)
4923	    abort ();
4924
4925	  if (r_type == (int) ELF32_R_TYPE (rel->r_info))
4926	    relocation = sh_elf_got_offset (htab) + off;
4927	  else
4928	    {
4929	      bfd_vma offset;
4930	      unsigned short insn;
4931
4932	      /* GD->IE transition:
4933		   mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4934		   jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4935		   1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4936		 We change it into:
4937		   mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
4938		   nop; nop; bra 3f; nop; .align 2;
4939		   1: .long x@TPOFF; 2:...; 3:.  */
4940
4941	      offset = rel->r_offset;
4942	      if (offset < 16)
4943		{
4944		  _bfd_error_handler
4945		    /* xgettext:c-format */
4946		    (_("%pB(%pA): offset in relocation for GD->IE translation is too small: %#" PRIx64),
4947		     input_bfd, input_section, (uint64_t) offset);
4948		  return FALSE;
4949		}
4950
4951	      /* Size of GD instructions is 16 or 18.  */
4952	      offset -= 16;
4953	      insn = bfd_get_16 (input_bfd, contents + offset + 0);
4954	      if ((insn & 0xff00) == 0xc700)
4955		{
4956		  BFD_ASSERT (offset >= 2);
4957		  offset -= 2;
4958		  insn = bfd_get_16 (input_bfd, contents + offset + 0);
4959		}
4960
4961	      BFD_ASSERT ((insn & 0xff00) == 0xd400);
4962
4963	      /* Replace mov.l 1f,R4 with mov.l 1f,r0.  */
4964	      bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset);
4965
4966	      insn = bfd_get_16 (input_bfd, contents + offset + 2);
4967	      BFD_ASSERT ((insn & 0xff00) == 0xc700);
4968	      insn = bfd_get_16 (input_bfd, contents + offset + 4);
4969	      BFD_ASSERT ((insn & 0xff00) == 0xd100);
4970	      insn = bfd_get_16 (input_bfd, contents + offset + 6);
4971	      BFD_ASSERT (insn == 0x310c);
4972	      insn = bfd_get_16 (input_bfd, contents + offset + 8);
4973	      BFD_ASSERT (insn == 0x410b);
4974	      insn = bfd_get_16 (input_bfd, contents + offset + 10);
4975	      BFD_ASSERT (insn == 0x34cc);
4976
4977	      bfd_put_16 (output_bfd, 0x0412, contents + offset + 2);
4978	      bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4);
4979	      bfd_put_16 (output_bfd, 0x304c, contents + offset + 6);
4980	      bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4981	      bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4982
4983	      bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
4984			  contents + rel->r_offset);
4985
4986	      continue;
4987	  }
4988
4989	  addend = rel->r_addend;
4990
4991	  goto final_link_relocate;
4992
4993	case R_SH_TLS_LD_32:
4994	  BFD_ASSERT (htab);
4995	  check_segment[0] = check_segment[1] = -1;
4996	  if (! bfd_link_pic (info))
4997	    {
4998	      bfd_vma offset;
4999	      unsigned short insn;
5000
5001	      /* LD->LE transition:
5002		   mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5003		   jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5004		   1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
5005		 We change it into:
5006		   stc gbr,r0; nop; nop; nop;
5007		   nop; nop; bra 3f; ...; 3:.  */
5008
5009	      offset = rel->r_offset;
5010	      if (offset < 16)
5011		{
5012		  _bfd_error_handler
5013		    /* xgettext:c-format */
5014		    (_("%pB(%pA): offset in relocation for LD->LE translation is too small: %#" PRIx64),
5015		     input_bfd, input_section, (uint64_t) offset);
5016		  return FALSE;
5017		}
5018
5019	      /* Size of LD instructions is 16 or 18.  */
5020	      offset -= 16;
5021	      insn = bfd_get_16 (input_bfd, contents + offset + 0);
5022	      if ((insn & 0xff00) == 0xc700)
5023		{
5024		  BFD_ASSERT (offset >= 2);
5025		  offset -= 2;
5026		  insn = bfd_get_16 (input_bfd, contents + offset + 0);
5027		}
5028
5029	      BFD_ASSERT ((insn & 0xff00) == 0xd400);
5030	      insn = bfd_get_16 (input_bfd, contents + offset + 2);
5031	      BFD_ASSERT ((insn & 0xff00) == 0xc700);
5032	      insn = bfd_get_16 (input_bfd, contents + offset + 4);
5033	      BFD_ASSERT ((insn & 0xff00) == 0xd100);
5034	      insn = bfd_get_16 (input_bfd, contents + offset + 6);
5035	      BFD_ASSERT (insn == 0x310c);
5036	      insn = bfd_get_16 (input_bfd, contents + offset + 8);
5037	      BFD_ASSERT (insn == 0x410b);
5038	      insn = bfd_get_16 (input_bfd, contents + offset + 10);
5039	      BFD_ASSERT (insn == 0x34cc);
5040
5041	      bfd_put_16 (output_bfd, 0x0012, contents + offset + 0);
5042	      bfd_put_16 (output_bfd, 0x0009, contents + offset + 2);
5043	      bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
5044	      bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
5045	      bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5046	      bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5047
5048	      continue;
5049	    }
5050
5051	  if (sgot == NULL || sgotplt == NULL)
5052	    abort ();
5053
5054	  off = htab->tls_ldm_got.offset;
5055	  if (off & 1)
5056	    off &= ~1;
5057	  else
5058	    {
5059	      Elf_Internal_Rela outrel;
5060	      bfd_byte *loc;
5061
5062	      outrel.r_offset = (sgot->output_section->vma
5063				 + sgot->output_offset + off);
5064	      outrel.r_addend = 0;
5065	      outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32);
5066	      loc = srelgot->contents;
5067	      loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
5068	      bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5069	      htab->tls_ldm_got.offset |= 1;
5070	    }
5071
5072	  relocation = sh_elf_got_offset (htab) + off;
5073	  addend = rel->r_addend;
5074
5075	  goto final_link_relocate;
5076
5077	case R_SH_TLS_LDO_32:
5078	  check_segment[0] = check_segment[1] = -1;
5079	  if (! bfd_link_pic (info))
5080	    relocation = tpoff (info, relocation);
5081	  else
5082	    relocation -= dtpoff_base (info);
5083
5084	  addend = rel->r_addend;
5085	  goto final_link_relocate;
5086
5087	case R_SH_TLS_LE_32:
5088	  {
5089	    int indx;
5090	    Elf_Internal_Rela outrel;
5091	    bfd_byte *loc;
5092
5093	    check_segment[0] = check_segment[1] = -1;
5094
5095	    if (!bfd_link_dll (info))
5096	      {
5097		relocation = tpoff (info, relocation);
5098		addend = rel->r_addend;
5099		goto final_link_relocate;
5100	      }
5101
5102	    if (sreloc == NULL)
5103	      {
5104		sreloc = _bfd_elf_get_dynamic_reloc_section
5105		  (input_bfd, input_section, /*rela?*/ TRUE);
5106		if (sreloc == NULL)
5107		  return FALSE;
5108	      }
5109
5110	    if (h == NULL || h->dynindx == -1)
5111	      indx = 0;
5112	    else
5113	      indx = h->dynindx;
5114
5115	    outrel.r_offset = (input_section->output_section->vma
5116			       + input_section->output_offset
5117			       + rel->r_offset);
5118	    outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
5119	    if (indx == 0)
5120	      outrel.r_addend = relocation - dtpoff_base (info);
5121	    else
5122	      outrel.r_addend = 0;
5123
5124	    loc = sreloc->contents;
5125	    loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5126	    bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5127	    continue;
5128	  }
5129	}
5130
5131    relocation_done:
5132      if (fdpic_p && check_segment[0] != (unsigned) -1
5133	  && check_segment[0] != check_segment[1])
5134	{
5135	  /* We don't want duplicate errors for undefined symbols.  */
5136	  if (!h || h->root.type != bfd_link_hash_undefined)
5137	    {
5138	      if (bfd_link_pic (info))
5139		{
5140		  info->callbacks->einfo
5141		    /* xgettext:c-format */
5142		    (_("%X%C: relocation to \"%s\" references a different segment\n"),
5143		     input_bfd, input_section, rel->r_offset, symname);
5144		  return FALSE;
5145		}
5146	      else
5147		info->callbacks->einfo
5148		  /* xgettext:c-format */
5149		  (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5150		   input_bfd, input_section, rel->r_offset, symname);
5151	    }
5152
5153	  elf_elfheader (output_bfd)->e_flags |= EF_SH_PIC;
5154	}
5155
5156      if (r != bfd_reloc_ok)
5157	{
5158	  switch (r)
5159	    {
5160	    default:
5161	    case bfd_reloc_outofrange:
5162	      abort ();
5163	    case bfd_reloc_overflow:
5164	      {
5165		const char *name;
5166
5167		if (h != NULL)
5168		  name = NULL;
5169		else
5170		  {
5171		    name = (bfd_elf_string_from_elf_section
5172			    (input_bfd, symtab_hdr->sh_link, sym->st_name));
5173		    if (name == NULL)
5174		      return FALSE;
5175		    if (*name == '\0')
5176		      name = bfd_section_name (sec);
5177		  }
5178		(*info->callbacks->reloc_overflow)
5179		  (info, (h ? &h->root : NULL), name, howto->name,
5180		   (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
5181	      }
5182	      break;
5183	    }
5184	}
5185    }
5186
5187  return TRUE;
5188}
5189
5190/* This is a version of bfd_generic_get_relocated_section_contents
5191   which uses sh_elf_relocate_section.  */
5192
5193static bfd_byte *
5194sh_elf_get_relocated_section_contents (bfd *output_bfd,
5195				       struct bfd_link_info *link_info,
5196				       struct bfd_link_order *link_order,
5197				       bfd_byte *data,
5198				       bfd_boolean relocatable,
5199				       asymbol **symbols)
5200{
5201  Elf_Internal_Shdr *symtab_hdr;
5202  asection *input_section = link_order->u.indirect.section;
5203  bfd *input_bfd = input_section->owner;
5204  asection **sections = NULL;
5205  Elf_Internal_Rela *internal_relocs = NULL;
5206  Elf_Internal_Sym *isymbuf = NULL;
5207
5208  /* We only need to handle the case of relaxing, or of having a
5209     particular set of section contents, specially.  */
5210  if (relocatable
5211      || elf_section_data (input_section)->this_hdr.contents == NULL)
5212    return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
5213						       link_order, data,
5214						       relocatable,
5215						       symbols);
5216
5217  symtab_hdr = &elf_symtab_hdr (input_bfd);
5218
5219  memcpy (data, elf_section_data (input_section)->this_hdr.contents,
5220	  (size_t) input_section->size);
5221
5222  if ((input_section->flags & SEC_RELOC) != 0
5223      && input_section->reloc_count > 0)
5224    {
5225      asection **secpp;
5226      Elf_Internal_Sym *isym, *isymend;
5227      bfd_size_type amt;
5228
5229      internal_relocs = (_bfd_elf_link_read_relocs
5230			 (input_bfd, input_section, NULL,
5231			  (Elf_Internal_Rela *) NULL, FALSE));
5232      if (internal_relocs == NULL)
5233	goto error_return;
5234
5235      if (symtab_hdr->sh_info != 0)
5236	{
5237	  isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5238	  if (isymbuf == NULL)
5239	    isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
5240					    symtab_hdr->sh_info, 0,
5241					    NULL, NULL, NULL);
5242	  if (isymbuf == NULL)
5243	    goto error_return;
5244	}
5245
5246      amt = symtab_hdr->sh_info;
5247      amt *= sizeof (asection *);
5248      sections = (asection **) bfd_malloc (amt);
5249      if (sections == NULL && amt != 0)
5250	goto error_return;
5251
5252      isymend = isymbuf + symtab_hdr->sh_info;
5253      for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
5254	{
5255	  asection *isec;
5256
5257	  if (isym->st_shndx == SHN_UNDEF)
5258	    isec = bfd_und_section_ptr;
5259	  else if (isym->st_shndx == SHN_ABS)
5260	    isec = bfd_abs_section_ptr;
5261	  else if (isym->st_shndx == SHN_COMMON)
5262	    isec = bfd_com_section_ptr;
5263	  else
5264	    isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
5265
5266	  *secpp = isec;
5267	}
5268
5269      if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5270				     input_section, data, internal_relocs,
5271				     isymbuf, sections))
5272	goto error_return;
5273
5274      if (sections != NULL)
5275	free (sections);
5276      if (isymbuf != NULL
5277	  && symtab_hdr->contents != (unsigned char *) isymbuf)
5278	free (isymbuf);
5279      if (elf_section_data (input_section)->relocs != internal_relocs)
5280	free (internal_relocs);
5281    }
5282
5283  return data;
5284
5285 error_return:
5286  if (sections != NULL)
5287    free (sections);
5288  if (isymbuf != NULL
5289      && symtab_hdr->contents != (unsigned char *) isymbuf)
5290    free (isymbuf);
5291  if (internal_relocs != NULL
5292      && elf_section_data (input_section)->relocs != internal_relocs)
5293    free (internal_relocs);
5294  return NULL;
5295}
5296
5297/* Return the base VMA address which should be subtracted from real addresses
5298   when resolving @dtpoff relocation.
5299   This is PT_TLS segment p_vaddr.  */
5300
5301static bfd_vma
5302dtpoff_base (struct bfd_link_info *info)
5303{
5304  /* If tls_sec is NULL, we should have signalled an error already.  */
5305  if (elf_hash_table (info)->tls_sec == NULL)
5306    return 0;
5307  return elf_hash_table (info)->tls_sec->vma;
5308}
5309
5310/* Return the relocation value for R_SH_TLS_TPOFF32..  */
5311
5312static bfd_vma
5313tpoff (struct bfd_link_info *info, bfd_vma address)
5314{
5315  /* If tls_sec is NULL, we should have signalled an error already.  */
5316  if (elf_hash_table (info)->tls_sec == NULL)
5317    return 0;
5318  /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5319     structure which has 2 pointer fields.  */
5320  return (address - elf_hash_table (info)->tls_sec->vma
5321	  + align_power ((bfd_vma) 8,
5322			 elf_hash_table (info)->tls_sec->alignment_power));
5323}
5324
5325static asection *
5326sh_elf_gc_mark_hook (asection *sec,
5327		     struct bfd_link_info *info,
5328		     Elf_Internal_Rela *rel,
5329		     struct elf_link_hash_entry *h,
5330		     Elf_Internal_Sym *sym)
5331{
5332  if (h != NULL)
5333    switch (ELF32_R_TYPE (rel->r_info))
5334      {
5335      case R_SH_GNU_VTINHERIT:
5336      case R_SH_GNU_VTENTRY:
5337	return NULL;
5338      }
5339
5340  return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5341}
5342
5343/* Copy the extra info we tack onto an elf_link_hash_entry.  */
5344
5345static void
5346sh_elf_copy_indirect_symbol (struct bfd_link_info *info,
5347			     struct elf_link_hash_entry *dir,
5348			     struct elf_link_hash_entry *ind)
5349{
5350  struct elf_sh_link_hash_entry *edir, *eind;
5351
5352  edir = (struct elf_sh_link_hash_entry *) dir;
5353  eind = (struct elf_sh_link_hash_entry *) ind;
5354
5355  if (eind->dyn_relocs != NULL)
5356    {
5357      if (edir->dyn_relocs != NULL)
5358	{
5359	  struct elf_dyn_relocs **pp;
5360	  struct elf_dyn_relocs *p;
5361
5362	  /* Add reloc counts against the indirect sym to the direct sym
5363	     list.  Merge any entries against the same section.  */
5364	  for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
5365	    {
5366	      struct elf_dyn_relocs *q;
5367
5368	      for (q = edir->dyn_relocs; q != NULL; q = q->next)
5369		if (q->sec == p->sec)
5370		  {
5371		    q->pc_count += p->pc_count;
5372		    q->count += p->count;
5373		    *pp = p->next;
5374		    break;
5375		  }
5376	      if (q == NULL)
5377		pp = &p->next;
5378	    }
5379	  *pp = edir->dyn_relocs;
5380	}
5381
5382      edir->dyn_relocs = eind->dyn_relocs;
5383      eind->dyn_relocs = NULL;
5384    }
5385  edir->gotplt_refcount = eind->gotplt_refcount;
5386  eind->gotplt_refcount = 0;
5387  edir->funcdesc.refcount += eind->funcdesc.refcount;
5388  eind->funcdesc.refcount = 0;
5389  edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount;
5390  eind->abs_funcdesc_refcount = 0;
5391
5392  if (ind->root.type == bfd_link_hash_indirect
5393      && dir->got.refcount <= 0)
5394    {
5395      edir->got_type = eind->got_type;
5396      eind->got_type = GOT_UNKNOWN;
5397    }
5398
5399  if (ind->root.type != bfd_link_hash_indirect
5400      && dir->dynamic_adjusted)
5401    {
5402      /* If called to transfer flags for a weakdef during processing
5403	 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
5404	 We clear it ourselves for ELIMINATE_COPY_RELOCS.  */
5405      if (dir->versioned != versioned_hidden)
5406	dir->ref_dynamic |= ind->ref_dynamic;
5407      dir->ref_regular |= ind->ref_regular;
5408      dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
5409      dir->needs_plt |= ind->needs_plt;
5410    }
5411  else
5412    _bfd_elf_link_hash_copy_indirect (info, dir, ind);
5413}
5414
5415static int
5416sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
5417			    int is_local)
5418{
5419  if (bfd_link_pic (info))
5420    return r_type;
5421
5422  switch (r_type)
5423    {
5424    case R_SH_TLS_GD_32:
5425    case R_SH_TLS_IE_32:
5426      if (is_local)
5427	return R_SH_TLS_LE_32;
5428      return R_SH_TLS_IE_32;
5429    case R_SH_TLS_LD_32:
5430      return R_SH_TLS_LE_32;
5431    }
5432
5433  return r_type;
5434}
5435
5436/* Look through the relocs for a section during the first phase.
5437   Since we don't do .gots or .plts, we just need to consider the
5438   virtual table relocs for gc.  */
5439
5440static bfd_boolean
5441sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
5442		     const Elf_Internal_Rela *relocs)
5443{
5444  Elf_Internal_Shdr *symtab_hdr;
5445  struct elf_link_hash_entry **sym_hashes;
5446  struct elf_sh_link_hash_table *htab;
5447  const Elf_Internal_Rela *rel;
5448  const Elf_Internal_Rela *rel_end;
5449  asection *sreloc;
5450  unsigned int r_type;
5451  enum got_type got_type, old_got_type;
5452
5453  sreloc = NULL;
5454
5455  if (bfd_link_relocatable (info))
5456    return TRUE;
5457
5458  /* Don't do anything special with non-loaded, non-alloced sections.
5459     In particular, any relocs in such sections should not affect GOT
5460     and PLT reference counting (ie. we don't allow them to create GOT
5461     or PLT entries), there's no possibility or desire to optimize TLS
5462     relocs, and there's not much point in propagating relocs to shared
5463     libs that the dynamic linker won't relocate.  */
5464  if ((sec->flags & SEC_ALLOC) == 0)
5465    return TRUE;
5466
5467  BFD_ASSERT (is_sh_elf (abfd));
5468
5469  symtab_hdr = &elf_symtab_hdr (abfd);
5470  sym_hashes = elf_sym_hashes (abfd);
5471
5472  htab = sh_elf_hash_table (info);
5473  if (htab == NULL)
5474    return FALSE;
5475
5476  rel_end = relocs + sec->reloc_count;
5477  for (rel = relocs; rel < rel_end; rel++)
5478    {
5479      struct elf_link_hash_entry *h;
5480      unsigned long r_symndx;
5481
5482      r_symndx = ELF32_R_SYM (rel->r_info);
5483      r_type = ELF32_R_TYPE (rel->r_info);
5484
5485      if (r_symndx < symtab_hdr->sh_info)
5486	h = NULL;
5487      else
5488	{
5489	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5490	  while (h->root.type == bfd_link_hash_indirect
5491		 || h->root.type == bfd_link_hash_warning)
5492	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
5493	}
5494
5495      r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
5496      if (! bfd_link_pic (info)
5497	  && r_type == R_SH_TLS_IE_32
5498	  && h != NULL
5499	  && h->root.type != bfd_link_hash_undefined
5500	  && h->root.type != bfd_link_hash_undefweak
5501	  && (h->dynindx == -1
5502	      || h->def_regular))
5503	r_type = R_SH_TLS_LE_32;
5504
5505      if (htab->fdpic_p)
5506	switch (r_type)
5507	  {
5508	  case R_SH_GOTOFFFUNCDESC:
5509	  case R_SH_GOTOFFFUNCDESC20:
5510	  case R_SH_FUNCDESC:
5511	  case R_SH_GOTFUNCDESC:
5512	  case R_SH_GOTFUNCDESC20:
5513	    if (h != NULL)
5514	      {
5515		if (h->dynindx == -1)
5516		  switch (ELF_ST_VISIBILITY (h->other))
5517		    {
5518		    case STV_INTERNAL:
5519		    case STV_HIDDEN:
5520		      break;
5521		    default:
5522		      bfd_elf_link_record_dynamic_symbol (info, h);
5523		      break;
5524		    }
5525	      }
5526	    break;
5527	  }
5528
5529      /* Some relocs require a global offset table.  */
5530      if (htab->root.sgot == NULL)
5531	{
5532	  switch (r_type)
5533	    {
5534	    case R_SH_DIR32:
5535	      /* This may require an rofixup.  */
5536	      if (!htab->fdpic_p)
5537		break;
5538	      /* Fall through.  */
5539	    case R_SH_GOTPLT32:
5540	    case R_SH_GOT32:
5541	    case R_SH_GOT20:
5542	    case R_SH_GOTOFF:
5543	    case R_SH_GOTOFF20:
5544	    case R_SH_FUNCDESC:
5545	    case R_SH_GOTFUNCDESC:
5546	    case R_SH_GOTFUNCDESC20:
5547	    case R_SH_GOTOFFFUNCDESC:
5548	    case R_SH_GOTOFFFUNCDESC20:
5549	    case R_SH_GOTPC:
5550	    case R_SH_TLS_GD_32:
5551	    case R_SH_TLS_LD_32:
5552	    case R_SH_TLS_IE_32:
5553	      if (htab->root.dynobj == NULL)
5554		htab->root.dynobj = abfd;
5555	      if (!create_got_section (htab->root.dynobj, info))
5556		return FALSE;
5557	      break;
5558
5559	    default:
5560	      break;
5561	    }
5562	}
5563
5564      switch (r_type)
5565	{
5566	  /* This relocation describes the C++ object vtable hierarchy.
5567	     Reconstruct it for later use during GC.  */
5568	case R_SH_GNU_VTINHERIT:
5569	  if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
5570	    return FALSE;
5571	  break;
5572
5573	  /* This relocation describes which C++ vtable entries are actually
5574	     used.  Record for later use during GC.  */
5575	case R_SH_GNU_VTENTRY:
5576	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
5577	    return FALSE;
5578	  break;
5579
5580	case R_SH_TLS_IE_32:
5581	  if (bfd_link_pic (info))
5582	    info->flags |= DF_STATIC_TLS;
5583
5584	  /* FALLTHROUGH */
5585	force_got:
5586	case R_SH_TLS_GD_32:
5587	case R_SH_GOT32:
5588	case R_SH_GOT20:
5589	case R_SH_GOTFUNCDESC:
5590	case R_SH_GOTFUNCDESC20:
5591	  switch (r_type)
5592	    {
5593	    default:
5594	      got_type = GOT_NORMAL;
5595	      break;
5596	    case R_SH_TLS_GD_32:
5597	      got_type = GOT_TLS_GD;
5598	      break;
5599	    case R_SH_TLS_IE_32:
5600	      got_type = GOT_TLS_IE;
5601	      break;
5602	    case R_SH_GOTFUNCDESC:
5603	    case R_SH_GOTFUNCDESC20:
5604	      got_type = GOT_FUNCDESC;
5605	      break;
5606	    }
5607
5608	  if (h != NULL)
5609	    {
5610	      h->got.refcount += 1;
5611	      old_got_type = sh_elf_hash_entry (h)->got_type;
5612	    }
5613	  else
5614	    {
5615	      bfd_signed_vma *local_got_refcounts;
5616
5617	      /* This is a global offset table entry for a local
5618		 symbol.  */
5619	      local_got_refcounts = elf_local_got_refcounts (abfd);
5620	      if (local_got_refcounts == NULL)
5621		{
5622		  bfd_size_type size;
5623
5624		  size = symtab_hdr->sh_info;
5625		  size *= sizeof (bfd_signed_vma);
5626		  size += symtab_hdr->sh_info;
5627		  local_got_refcounts = ((bfd_signed_vma *)
5628					 bfd_zalloc (abfd, size));
5629		  if (local_got_refcounts == NULL)
5630		    return FALSE;
5631		  elf_local_got_refcounts (abfd) = local_got_refcounts;
5632		  sh_elf_local_got_type (abfd)
5633		    = (char *) (local_got_refcounts + symtab_hdr->sh_info);
5634		}
5635	      local_got_refcounts[r_symndx] += 1;
5636	      old_got_type = sh_elf_local_got_type (abfd) [r_symndx];
5637	    }
5638
5639	  /* If a TLS symbol is accessed using IE at least once,
5640	     there is no point to use dynamic model for it.  */
5641	  if (old_got_type != got_type && old_got_type != GOT_UNKNOWN
5642	      && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE))
5643	    {
5644	      if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD)
5645		got_type = GOT_TLS_IE;
5646	      else
5647		{
5648		  if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC)
5649		      && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL))
5650		    _bfd_error_handler
5651		      /* xgettext:c-format */
5652		      (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
5653		       abfd, h->root.root.string);
5654		  else if (old_got_type == GOT_FUNCDESC
5655			   || got_type == GOT_FUNCDESC)
5656		    _bfd_error_handler
5657		      /* xgettext:c-format */
5658		      (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
5659		       abfd, h->root.root.string);
5660		  else
5661		    _bfd_error_handler
5662		      /* xgettext:c-format */
5663		      (_("%pB: `%s' accessed both as normal and thread local symbol"),
5664		       abfd, h->root.root.string);
5665		  return FALSE;
5666		}
5667	    }
5668
5669	  if (old_got_type != got_type)
5670	    {
5671	      if (h != NULL)
5672		sh_elf_hash_entry (h)->got_type = got_type;
5673	      else
5674		sh_elf_local_got_type (abfd) [r_symndx] = got_type;
5675	    }
5676
5677	  break;
5678
5679	case R_SH_TLS_LD_32:
5680	  sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
5681	  break;
5682
5683	case R_SH_FUNCDESC:
5684	case R_SH_GOTOFFFUNCDESC:
5685	case R_SH_GOTOFFFUNCDESC20:
5686	  if (rel->r_addend)
5687	    {
5688	      _bfd_error_handler
5689		(_("%pB: Function descriptor relocation with non-zero addend"),
5690		 abfd);
5691	      return FALSE;
5692	    }
5693
5694	  if (h == NULL)
5695	    {
5696	      union gotref *local_funcdesc;
5697
5698	      /* We need a function descriptor for a local symbol.  */
5699	      local_funcdesc = sh_elf_local_funcdesc (abfd);
5700	      if (local_funcdesc == NULL)
5701		{
5702		  bfd_size_type size;
5703
5704		  size = symtab_hdr->sh_info * sizeof (union gotref);
5705		  local_funcdesc = (union gotref *) bfd_zalloc (abfd, size);
5706		  if (local_funcdesc == NULL)
5707		    return FALSE;
5708		  sh_elf_local_funcdesc (abfd) = local_funcdesc;
5709		}
5710	      local_funcdesc[r_symndx].refcount += 1;
5711
5712	      if (r_type == R_SH_FUNCDESC)
5713		{
5714		  if (!bfd_link_pic (info))
5715		    htab->srofixup->size += 4;
5716		  else
5717		    htab->root.srelgot->size += sizeof (Elf32_External_Rela);
5718		}
5719	    }
5720	  else
5721	    {
5722	      sh_elf_hash_entry (h)->funcdesc.refcount++;
5723	      if (r_type == R_SH_FUNCDESC)
5724		sh_elf_hash_entry (h)->abs_funcdesc_refcount++;
5725
5726	      /* If there is a function descriptor reference, then
5727		 there should not be any non-FDPIC references.  */
5728	      old_got_type = sh_elf_hash_entry (h)->got_type;
5729	      if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN)
5730		{
5731		  if (old_got_type == GOT_NORMAL)
5732		    _bfd_error_handler
5733		      /* xgettext:c-format */
5734		      (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
5735		       abfd, h->root.root.string);
5736		  else
5737		    _bfd_error_handler
5738		      /* xgettext:c-format */
5739		      (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
5740		       abfd, h->root.root.string);
5741		}
5742	    }
5743	  break;
5744
5745	case R_SH_GOTPLT32:
5746	  /* If this is a local symbol, we resolve it directly without
5747	     creating a procedure linkage table entry.  */
5748
5749	  if (h == NULL
5750	      || h->forced_local
5751	      || ! bfd_link_pic (info)
5752	      || info->symbolic
5753	      || h->dynindx == -1)
5754	    goto force_got;
5755
5756	  h->needs_plt = 1;
5757	  h->plt.refcount += 1;
5758	  ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
5759
5760	  break;
5761
5762	case R_SH_PLT32:
5763	  /* This symbol requires a procedure linkage table entry.  We
5764	     actually build the entry in adjust_dynamic_symbol,
5765	     because this might be a case of linking PIC code which is
5766	     never referenced by a dynamic object, in which case we
5767	     don't need to generate a procedure linkage table entry
5768	     after all.  */
5769
5770	  /* If this is a local symbol, we resolve it directly without
5771	     creating a procedure linkage table entry.  */
5772	  if (h == NULL)
5773	    continue;
5774
5775	  if (h->forced_local)
5776	    break;
5777
5778	  h->needs_plt = 1;
5779	  h->plt.refcount += 1;
5780	  break;
5781
5782	case R_SH_DIR32:
5783	case R_SH_REL32:
5784	  if (h != NULL && ! bfd_link_pic (info))
5785	    {
5786	      h->non_got_ref = 1;
5787	      h->plt.refcount += 1;
5788	    }
5789
5790	  /* If we are creating a shared library, and this is a reloc
5791	     against a global symbol, or a non PC relative reloc
5792	     against a local symbol, then we need to copy the reloc
5793	     into the shared library.  However, if we are linking with
5794	     -Bsymbolic, we do not need to copy a reloc against a
5795	     global symbol which is defined in an object we are
5796	     including in the link (i.e., DEF_REGULAR is set).  At
5797	     this point we have not seen all the input files, so it is
5798	     possible that DEF_REGULAR is not set now but will be set
5799	     later (it is never cleared).  We account for that
5800	     possibility below by storing information in the
5801	     dyn_relocs field of the hash table entry. A similar
5802	     situation occurs when creating shared libraries and symbol
5803	     visibility changes render the symbol local.
5804
5805	     If on the other hand, we are creating an executable, we
5806	     may need to keep relocations for symbols satisfied by a
5807	     dynamic library if we manage to avoid copy relocs for the
5808	     symbol.  */
5809	  if ((bfd_link_pic (info)
5810	       && (sec->flags & SEC_ALLOC) != 0
5811	       && (r_type != R_SH_REL32
5812		   || (h != NULL
5813		       && (! info->symbolic
5814			   || h->root.type == bfd_link_hash_defweak
5815			   || !h->def_regular))))
5816	      || (! bfd_link_pic (info)
5817		  && (sec->flags & SEC_ALLOC) != 0
5818		  && h != NULL
5819		  && (h->root.type == bfd_link_hash_defweak
5820		      || !h->def_regular)))
5821	    {
5822	      struct elf_dyn_relocs *p;
5823	      struct elf_dyn_relocs **head;
5824
5825	      if (htab->root.dynobj == NULL)
5826		htab->root.dynobj = abfd;
5827
5828	      /* When creating a shared object, we must copy these
5829		 reloc types into the output file.  We create a reloc
5830		 section in dynobj and make room for this reloc.  */
5831	      if (sreloc == NULL)
5832		{
5833		  sreloc = _bfd_elf_make_dynamic_reloc_section
5834		    (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE);
5835
5836		  if (sreloc == NULL)
5837		    return FALSE;
5838		}
5839
5840	      /* If this is a global symbol, we count the number of
5841		 relocations we need for this symbol.  */
5842	      if (h != NULL)
5843		head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs;
5844	      else
5845		{
5846		  /* Track dynamic relocs needed for local syms too.  */
5847		  asection *s;
5848		  void *vpp;
5849		  Elf_Internal_Sym *isym;
5850
5851		  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5852						abfd, r_symndx);
5853		  if (isym == NULL)
5854		    return FALSE;
5855
5856		  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5857		  if (s == NULL)
5858		    s = sec;
5859
5860		  vpp = &elf_section_data (s)->local_dynrel;
5861		  head = (struct elf_dyn_relocs **) vpp;
5862		}
5863
5864	      p = *head;
5865	      if (p == NULL || p->sec != sec)
5866		{
5867		  bfd_size_type amt = sizeof (*p);
5868		  p = bfd_alloc (htab->root.dynobj, amt);
5869		  if (p == NULL)
5870		    return FALSE;
5871		  p->next = *head;
5872		  *head = p;
5873		  p->sec = sec;
5874		  p->count = 0;
5875		  p->pc_count = 0;
5876		}
5877
5878	      p->count += 1;
5879	      if (r_type == R_SH_REL32)
5880		p->pc_count += 1;
5881	    }
5882
5883	  /* Allocate the fixup regardless of whether we need a relocation.
5884	     If we end up generating the relocation, we'll unallocate the
5885	     fixup.  */
5886	  if (htab->fdpic_p && !bfd_link_pic (info)
5887	      && r_type == R_SH_DIR32
5888	      && (sec->flags & SEC_ALLOC) != 0)
5889	    htab->srofixup->size += 4;
5890	  break;
5891
5892	case R_SH_TLS_LE_32:
5893	  if (bfd_link_dll (info))
5894	    {
5895	      _bfd_error_handler
5896		(_("%pB: TLS local exec code cannot be linked into shared objects"),
5897		 abfd);
5898	      return FALSE;
5899	    }
5900
5901	  break;
5902
5903	case R_SH_TLS_LDO_32:
5904	  /* Nothing to do.  */
5905	  break;
5906
5907	default:
5908	  break;
5909	}
5910    }
5911
5912  return TRUE;
5913}
5914
5915#ifndef sh_elf_set_mach_from_flags
5916static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
5917
5918static bfd_boolean
5919sh_elf_set_mach_from_flags (bfd *abfd)
5920{
5921  flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
5922
5923  if (flags >= ARRAY_SIZE (sh_ef_bfd_table))
5924    return FALSE;
5925
5926  if (sh_ef_bfd_table[flags] == 0)
5927    return FALSE;
5928
5929  bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
5930
5931  return TRUE;
5932}
5933
5934
5935/* Reverse table lookup for sh_ef_bfd_table[].
5936   Given a bfd MACH value from archures.c
5937   return the equivalent ELF flags from the table.
5938   Return -1 if no match is found.  */
5939
5940int
5941sh_elf_get_flags_from_mach (unsigned long mach)
5942{
5943  int i = ARRAY_SIZE (sh_ef_bfd_table) - 1;
5944
5945  for (; i>0; i--)
5946    if (sh_ef_bfd_table[i] == mach)
5947      return i;
5948
5949  /* shouldn't get here */
5950  BFD_FAIL();
5951
5952  return -1;
5953}
5954#endif /* not sh_elf_set_mach_from_flags */
5955
5956#ifndef sh_elf_copy_private_data
5957/* Copy backend specific data from one object module to another */
5958
5959static bfd_boolean
5960sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
5961{
5962  if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
5963    return TRUE;
5964
5965  if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
5966    return FALSE;
5967
5968  return sh_elf_set_mach_from_flags (obfd);
5969}
5970#endif /* not sh_elf_copy_private_data */
5971
5972#ifndef sh_elf_merge_private_data
5973
5974/* This function returns the ELF architecture number that
5975   corresponds to the given arch_sh* flags.  */
5976
5977int
5978sh_find_elf_flags (unsigned int arch_set)
5979{
5980  extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
5981  unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
5982
5983  return sh_elf_get_flags_from_mach (bfd_mach);
5984}
5985
5986/* Merge the architecture type of two BFD files, such that the
5987   resultant architecture supports all the features required
5988   by the two input BFDs.
5989   If the input BFDs are multually incompatible - i.e. one uses
5990   DSP while the other uses FPU - or there is no known architecture
5991   that fits the requirements then an error is emitted.  */
5992
5993static bfd_boolean
5994sh_merge_bfd_arch (bfd *ibfd, struct bfd_link_info *info)
5995{
5996  bfd *obfd = info->output_bfd;
5997  unsigned int old_arch, new_arch, merged_arch;
5998
5999  if (! _bfd_generic_verify_endian_match (ibfd, info))
6000    return FALSE;
6001
6002  old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd));
6003  new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd));
6004
6005  merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch);
6006
6007  if (!SH_VALID_CO_ARCH_SET (merged_arch))
6008    {
6009      _bfd_error_handler
6010	/* xgettext:c-format */
6011	(_("%pB: uses %s instructions while previous modules "
6012	   "use %s instructions"),
6013	 ibfd,
6014	 SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point",
6015	 SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp");
6016      bfd_set_error (bfd_error_bad_value);
6017      return FALSE;
6018    }
6019  else if (!SH_VALID_ARCH_SET (merged_arch))
6020    {
6021      _bfd_error_handler
6022	/* xgettext:c-format */
6023	(_("internal error: merge of architecture '%s' with "
6024	   "architecture '%s' produced unknown architecture"),
6025	 bfd_printable_name (obfd),
6026	 bfd_printable_name (ibfd));
6027      bfd_set_error (bfd_error_bad_value);
6028      return FALSE;
6029    }
6030
6031  bfd_default_set_arch_mach (obfd, bfd_arch_sh,
6032			     sh_get_bfd_mach_from_arch_set (merged_arch));
6033
6034  return TRUE;
6035}
6036
6037/* This routine initialises the elf flags when required and
6038   calls sh_merge_bfd_arch() to check dsp/fpu compatibility.  */
6039
6040static bfd_boolean
6041sh_elf_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
6042{
6043  bfd *obfd = info->output_bfd;
6044
6045  if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
6046    return TRUE;
6047
6048  if (! elf_flags_init (obfd))
6049    {
6050      /* This happens when ld starts out with a 'blank' output file.  */
6051      elf_flags_init (obfd) = TRUE;
6052      elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6053      sh_elf_set_mach_from_flags (obfd);
6054      if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC)
6055	elf_elfheader (obfd)->e_flags &= ~EF_SH_PIC;
6056    }
6057
6058  if (! sh_merge_bfd_arch (ibfd, info))
6059    {
6060      _bfd_error_handler (_("%pB: uses instructions which are incompatible "
6061			    "with instructions used in previous modules"),
6062			  ibfd);
6063      bfd_set_error (bfd_error_bad_value);
6064      return FALSE;
6065    }
6066
6067  elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK;
6068  elf_elfheader (obfd)->e_flags |=
6069    sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
6070
6071  if (fdpic_object_p (ibfd) != fdpic_object_p (obfd))
6072    {
6073      _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"),
6074			  ibfd);
6075      bfd_set_error (bfd_error_bad_value);
6076      return FALSE;
6077    }
6078
6079  return TRUE;
6080}
6081#endif /* not sh_elf_merge_private_data */
6082
6083/* Override the generic function because we need to store sh_elf_obj_tdata
6084   as the specific tdata.  We set also the machine architecture from flags
6085   here.  */
6086
6087static bfd_boolean
6088sh_elf_object_p (bfd *abfd)
6089{
6090  if (! sh_elf_set_mach_from_flags (abfd))
6091    return FALSE;
6092
6093  return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0)
6094	  == fdpic_object_p (abfd));
6095}
6096
6097/* Finish up dynamic symbol handling.  We set the contents of various
6098   dynamic sections here.  */
6099
6100static bfd_boolean
6101sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
6102			      struct elf_link_hash_entry *h,
6103			      Elf_Internal_Sym *sym)
6104{
6105  struct elf_sh_link_hash_table *htab;
6106
6107  htab = sh_elf_hash_table (info);
6108  if (htab == NULL)
6109    return FALSE;
6110
6111  if (h->plt.offset != (bfd_vma) -1)
6112    {
6113      asection *splt;
6114      asection *sgotplt;
6115      asection *srelplt;
6116
6117      bfd_vma plt_index;
6118      bfd_vma got_offset;
6119      Elf_Internal_Rela rel;
6120      bfd_byte *loc;
6121      const struct elf_sh_plt_info *plt_info;
6122
6123      /* This symbol has an entry in the procedure linkage table.  Set
6124	 it up.  */
6125
6126      BFD_ASSERT (h->dynindx != -1);
6127
6128      splt = htab->root.splt;
6129      sgotplt = htab->root.sgotplt;
6130      srelplt = htab->root.srelplt;
6131      BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL);
6132
6133      /* Get the index in the procedure linkage table which
6134	 corresponds to this symbol.  This is the index of this symbol
6135	 in all the symbols for which we are making plt entries.  The
6136	 first entry in the procedure linkage table is reserved.  */
6137      plt_index = get_plt_index (htab->plt_info, h->plt.offset);
6138
6139      plt_info = htab->plt_info;
6140      if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT)
6141	plt_info = plt_info->short_plt;
6142
6143      /* Get the offset into the .got table of the entry that
6144	 corresponds to this function.  */
6145      if (htab->fdpic_p)
6146	/* The offset must be relative to the GOT symbol, twelve bytes
6147	   before the end of .got.plt.  Each descriptor is eight
6148	   bytes.  */
6149	got_offset = plt_index * 8 + 12 - sgotplt->size;
6150      else
6151	/* Each .got entry is 4 bytes.  The first three are
6152	   reserved.  */
6153	got_offset = (plt_index + 3) * 4;
6154
6155#ifdef GOT_BIAS
6156      if (bfd_link_pic (info))
6157	got_offset -= GOT_BIAS;
6158#endif
6159
6160      /* Fill in the entry in the procedure linkage table.  */
6161      memcpy (splt->contents + h->plt.offset,
6162	      plt_info->symbol_entry,
6163	      plt_info->symbol_entry_size);
6164
6165      if (bfd_link_pic (info) || htab->fdpic_p)
6166	{
6167	  if (plt_info->symbol_fields.got20)
6168	    {
6169	      bfd_reloc_status_type r;
6170	      r = install_movi20_field (output_bfd, got_offset,
6171					splt->owner, splt, splt->contents,
6172					h->plt.offset
6173					+ plt_info->symbol_fields.got_entry);
6174	      BFD_ASSERT (r == bfd_reloc_ok);
6175	    }
6176	  else
6177	    install_plt_field (output_bfd, FALSE, got_offset,
6178			       (splt->contents
6179				+ h->plt.offset
6180				+ plt_info->symbol_fields.got_entry));
6181	}
6182      else
6183	{
6184	  BFD_ASSERT (!plt_info->symbol_fields.got20);
6185
6186	  install_plt_field (output_bfd, FALSE,
6187			     (sgotplt->output_section->vma
6188			      + sgotplt->output_offset
6189			      + got_offset),
6190			     (splt->contents
6191			      + h->plt.offset
6192			      + plt_info->symbol_fields.got_entry));
6193	  if (htab->vxworks_p)
6194	    {
6195	      unsigned int reachable_plts, plts_per_4k;
6196	      int distance;
6197
6198	      /* Divide the PLT into groups.  The first group contains
6199		 REACHABLE_PLTS entries and the other groups contain
6200		 PLTS_PER_4K entries.  Entries in the first group can
6201		 branch directly to .plt; those in later groups branch
6202		 to the last element of the previous group.  */
6203	      /* ??? It would be better to create multiple copies of
6204		 the common resolver stub.  */
6205	      reachable_plts = ((4096
6206				 - plt_info->plt0_entry_size
6207				 - (plt_info->symbol_fields.plt + 4))
6208				/ plt_info->symbol_entry_size) + 1;
6209	      plts_per_4k = (4096 / plt_info->symbol_entry_size);
6210	      if (plt_index < reachable_plts)
6211		distance = -(h->plt.offset
6212			     + plt_info->symbol_fields.plt);
6213	      else
6214		distance = -(((plt_index - reachable_plts) % plts_per_4k + 1)
6215			     * plt_info->symbol_entry_size);
6216
6217	      /* Install the 'bra' with this offset.  */
6218	      bfd_put_16 (output_bfd,
6219			  0xa000 | (0x0fff & ((distance - 4) / 2)),
6220			  (splt->contents
6221			   + h->plt.offset
6222			   + plt_info->symbol_fields.plt));
6223	    }
6224	  else
6225	    install_plt_field (output_bfd, TRUE,
6226			       splt->output_section->vma + splt->output_offset,
6227			       (splt->contents
6228				+ h->plt.offset
6229				+ plt_info->symbol_fields.plt));
6230	}
6231
6232      /* Make got_offset relative to the start of .got.plt.  */
6233#ifdef GOT_BIAS
6234      if (bfd_link_pic (info))
6235	got_offset += GOT_BIAS;
6236#endif
6237      if (htab->fdpic_p)
6238	got_offset = plt_index * 8;
6239
6240      if (plt_info->symbol_fields.reloc_offset != MINUS_ONE)
6241	install_plt_field (output_bfd, FALSE,
6242			   plt_index * sizeof (Elf32_External_Rela),
6243			   (splt->contents
6244			    + h->plt.offset
6245			    + plt_info->symbol_fields.reloc_offset));
6246
6247      /* Fill in the entry in the global offset table.  */
6248      bfd_put_32 (output_bfd,
6249		  (splt->output_section->vma
6250		   + splt->output_offset
6251		   + h->plt.offset
6252		   + plt_info->symbol_resolve_offset),
6253		  sgotplt->contents + got_offset);
6254      if (htab->fdpic_p)
6255	bfd_put_32 (output_bfd,
6256		    sh_elf_osec_to_segment (output_bfd, splt->output_section),
6257		    sgotplt->contents + got_offset + 4);
6258
6259      /* Fill in the entry in the .rela.plt section.  */
6260      rel.r_offset = (sgotplt->output_section->vma
6261		      + sgotplt->output_offset
6262		      + got_offset);
6263      if (htab->fdpic_p)
6264	rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE);
6265      else
6266	rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
6267      rel.r_addend = 0;
6268#ifdef GOT_BIAS
6269      rel.r_addend = GOT_BIAS;
6270#endif
6271      loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
6272      bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6273
6274      if (htab->vxworks_p && !bfd_link_pic (info))
6275	{
6276	  /* Create the .rela.plt.unloaded relocations for this PLT entry.
6277	     Begin by pointing LOC to the first such relocation.  */
6278	  loc = (htab->srelplt2->contents
6279		 + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela));
6280
6281	  /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
6282	     for the PLT entry's pointer to the .got.plt entry.  */
6283	  rel.r_offset = (splt->output_section->vma
6284			  + splt->output_offset
6285			  + h->plt.offset
6286			  + plt_info->symbol_fields.got_entry);
6287	  rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6288	  rel.r_addend = got_offset;
6289	  bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6290	  loc += sizeof (Elf32_External_Rela);
6291
6292	  /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
6293	     the .got.plt entry, which initially points to .plt.  */
6294	  rel.r_offset = (sgotplt->output_section->vma
6295			  + sgotplt->output_offset
6296			  + got_offset);
6297	  rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32);
6298	  rel.r_addend = 0;
6299	  bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6300	}
6301
6302      if (!h->def_regular)
6303	{
6304	  /* Mark the symbol as undefined, rather than as defined in
6305	     the .plt section.  Leave the value alone.  */
6306	  sym->st_shndx = SHN_UNDEF;
6307	}
6308    }
6309
6310  if (h->got.offset != (bfd_vma) -1
6311      && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD
6312      && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE
6313      && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC)
6314    {
6315      asection *sgot;
6316      asection *srelgot;
6317      Elf_Internal_Rela rel;
6318      bfd_byte *loc;
6319
6320      /* This symbol has an entry in the global offset table.  Set it
6321	 up.  */
6322
6323      sgot = htab->root.sgot;
6324      srelgot = htab->root.srelgot;
6325      BFD_ASSERT (sgot != NULL && srelgot != NULL);
6326
6327      rel.r_offset = (sgot->output_section->vma
6328		      + sgot->output_offset
6329		      + (h->got.offset &~ (bfd_vma) 1));
6330
6331      /* If this is a static link, or it is a -Bsymbolic link and the
6332	 symbol is defined locally or was forced to be local because
6333	 of a version file, we just want to emit a RELATIVE reloc.
6334	 The entry in the global offset table will already have been
6335	 initialized in the relocate_section function.  */
6336      if (bfd_link_pic (info)
6337	  && SYMBOL_REFERENCES_LOCAL (info, h))
6338	{
6339	  if (htab->fdpic_p)
6340	    {
6341	      asection *sec = h->root.u.def.section;
6342	      int dynindx
6343		= elf_section_data (sec->output_section)->dynindx;
6344
6345	      rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
6346	      rel.r_addend = (h->root.u.def.value
6347			      + h->root.u.def.section->output_offset);
6348	    }
6349	  else
6350	    {
6351	      rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
6352	      rel.r_addend = (h->root.u.def.value
6353			      + h->root.u.def.section->output_section->vma
6354			      + h->root.u.def.section->output_offset);
6355	    }
6356	}
6357      else
6358	{
6359	  bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
6360	  rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
6361	  rel.r_addend = 0;
6362	}
6363
6364      loc = srelgot->contents;
6365      loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
6366      bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6367    }
6368
6369  if (h->needs_copy)
6370    {
6371      asection *s;
6372      Elf_Internal_Rela rel;
6373      bfd_byte *loc;
6374
6375      /* This symbol needs a copy reloc.  Set it up.  */
6376
6377      BFD_ASSERT (h->dynindx != -1
6378		  && (h->root.type == bfd_link_hash_defined
6379		      || h->root.type == bfd_link_hash_defweak));
6380
6381      s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
6382      BFD_ASSERT (s != NULL);
6383
6384      rel.r_offset = (h->root.u.def.value
6385		      + h->root.u.def.section->output_section->vma
6386		      + h->root.u.def.section->output_offset);
6387      rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
6388      rel.r_addend = 0;
6389      loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
6390      bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6391    }
6392
6393  /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute.  On VxWorks,
6394     _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
6395     ".got" section.  */
6396  if (h == htab->root.hdynamic
6397      || (!htab->vxworks_p && h == htab->root.hgot))
6398    sym->st_shndx = SHN_ABS;
6399
6400  return TRUE;
6401}
6402
6403/* Finish up the dynamic sections.  */
6404
6405static bfd_boolean
6406sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
6407{
6408  struct elf_sh_link_hash_table *htab;
6409  asection *sgotplt;
6410  asection *sdyn;
6411
6412  htab = sh_elf_hash_table (info);
6413  if (htab == NULL)
6414    return FALSE;
6415
6416  sgotplt = htab->root.sgotplt;
6417  sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic");
6418
6419  if (htab->root.dynamic_sections_created)
6420    {
6421      asection *splt;
6422      Elf32_External_Dyn *dyncon, *dynconend;
6423
6424      BFD_ASSERT (sgotplt != NULL && sdyn != NULL);
6425
6426      dyncon = (Elf32_External_Dyn *) sdyn->contents;
6427      dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6428      for (; dyncon < dynconend; dyncon++)
6429	{
6430	  Elf_Internal_Dyn dyn;
6431	  asection *s;
6432
6433	  bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
6434
6435	  switch (dyn.d_tag)
6436	    {
6437	    default:
6438	      if (htab->vxworks_p
6439		  && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
6440		bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6441	      break;
6442
6443	    case DT_PLTGOT:
6444	      BFD_ASSERT (htab->root.hgot != NULL);
6445	      s = htab->root.hgot->root.u.def.section;
6446	      dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value
6447		+ s->output_section->vma + s->output_offset;
6448	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6449	      break;
6450
6451	    case DT_JMPREL:
6452	      s = htab->root.srelplt->output_section;
6453	      BFD_ASSERT (s != NULL);
6454	      dyn.d_un.d_ptr = s->vma;
6455	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6456	      break;
6457
6458	    case DT_PLTRELSZ:
6459	      s = htab->root.srelplt->output_section;
6460	      BFD_ASSERT (s != NULL);
6461	      dyn.d_un.d_val = s->size;
6462	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6463	      break;
6464	    }
6465	}
6466
6467      /* Fill in the first entry in the procedure linkage table.  */
6468      splt = htab->root.splt;
6469      if (splt && splt->size > 0 && htab->plt_info->plt0_entry)
6470	{
6471	  unsigned int i;
6472
6473	  memcpy (splt->contents,
6474		  htab->plt_info->plt0_entry,
6475		  htab->plt_info->plt0_entry_size);
6476	  for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++)
6477	    if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE)
6478	      install_plt_field (output_bfd, FALSE,
6479				 (sgotplt->output_section->vma
6480				  + sgotplt->output_offset
6481				  + (i * 4)),
6482				 (splt->contents
6483				  + htab->plt_info->plt0_got_fields[i]));
6484
6485	  if (htab->vxworks_p)
6486	    {
6487	      /* Finalize the .rela.plt.unloaded contents.  */
6488	      Elf_Internal_Rela rel;
6489	      bfd_byte *loc;
6490
6491	      /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
6492		 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8.  */
6493	      loc = htab->srelplt2->contents;
6494	      rel.r_offset = (splt->output_section->vma
6495			      + splt->output_offset
6496			      + htab->plt_info->plt0_got_fields[2]);
6497	      rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6498	      rel.r_addend = 8;
6499	      bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6500	      loc += sizeof (Elf32_External_Rela);
6501
6502	      /* Fix up the remaining .rela.plt.unloaded relocations.
6503		 They may have the wrong symbol index for _G_O_T_ or
6504		 _P_L_T_ depending on the order in which symbols were
6505		 output.  */
6506	      while (loc < htab->srelplt2->contents + htab->srelplt2->size)
6507		{
6508		  /* The PLT entry's pointer to the .got.plt slot.  */
6509		  bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6510		  rel.r_info = ELF32_R_INFO (htab->root.hgot->indx,
6511					     R_SH_DIR32);
6512		  bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6513		  loc += sizeof (Elf32_External_Rela);
6514
6515		  /* The .got.plt slot's pointer to .plt.  */
6516		  bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6517		  rel.r_info = ELF32_R_INFO (htab->root.hplt->indx,
6518					     R_SH_DIR32);
6519		  bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6520		  loc += sizeof (Elf32_External_Rela);
6521		}
6522	    }
6523
6524	  /* UnixWare sets the entsize of .plt to 4, although that doesn't
6525	     really seem like the right value.  */
6526	  elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
6527	}
6528    }
6529
6530  /* Fill in the first three entries in the global offset table.  */
6531  if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p)
6532    {
6533      if (sdyn == NULL)
6534	bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents);
6535      else
6536	bfd_put_32 (output_bfd,
6537		    sdyn->output_section->vma + sdyn->output_offset,
6538		    sgotplt->contents);
6539      bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4);
6540      bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8);
6541    }
6542
6543  if (sgotplt && sgotplt->size > 0)
6544    elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4;
6545
6546  /* At the very end of the .rofixup section is a pointer to the GOT.  */
6547  if (htab->fdpic_p && htab->srofixup != NULL)
6548    {
6549      struct elf_link_hash_entry *hgot = htab->root.hgot;
6550      bfd_vma got_value = hgot->root.u.def.value
6551	+ hgot->root.u.def.section->output_section->vma
6552	+ hgot->root.u.def.section->output_offset;
6553
6554      sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value);
6555
6556      /* Make sure we allocated and generated the same number of fixups.  */
6557      BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size);
6558    }
6559
6560  if (htab->srelfuncdesc)
6561    BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela)
6562		== htab->srelfuncdesc->size);
6563
6564  if (htab->root.srelgot)
6565    BFD_ASSERT (htab->root.srelgot->reloc_count * sizeof (Elf32_External_Rela)
6566		== htab->root.srelgot->size);
6567
6568  return TRUE;
6569}
6570
6571static enum elf_reloc_type_class
6572sh_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
6573			 const asection *rel_sec ATTRIBUTE_UNUSED,
6574			 const Elf_Internal_Rela *rela)
6575{
6576  switch ((int) ELF32_R_TYPE (rela->r_info))
6577    {
6578    case R_SH_RELATIVE:
6579      return reloc_class_relative;
6580    case R_SH_JMP_SLOT:
6581      return reloc_class_plt;
6582    case R_SH_COPY:
6583      return reloc_class_copy;
6584    default:
6585      return reloc_class_normal;
6586    }
6587}
6588
6589#if !defined SH_TARGET_ALREADY_DEFINED
6590/* Support for Linux core dump NOTE sections.  */
6591
6592static bfd_boolean
6593elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6594{
6595  int offset;
6596  unsigned int size;
6597
6598  switch (note->descsz)
6599    {
6600      default:
6601	return FALSE;
6602
6603      case 168:		/* Linux/SH */
6604	/* pr_cursig */
6605	elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6606
6607	/* pr_pid */
6608	elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6609
6610	/* pr_reg */
6611	offset = 72;
6612	size = 92;
6613
6614	break;
6615    }
6616
6617  /* Make a ".reg/999" section.  */
6618  return _bfd_elfcore_make_pseudosection (abfd, ".reg",
6619					  size, note->descpos + offset);
6620}
6621
6622static bfd_boolean
6623elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6624{
6625  switch (note->descsz)
6626    {
6627      default:
6628	return FALSE;
6629
6630      case 124:		/* Linux/SH elf_prpsinfo */
6631	elf_tdata (abfd)->core->program
6632	 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6633	elf_tdata (abfd)->core->command
6634	 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6635    }
6636
6637  /* Note that for some reason, a spurious space is tacked
6638     onto the end of the args in some (at least one anyway)
6639     implementations, so strip it off if it exists.  */
6640
6641  {
6642    char *command = elf_tdata (abfd)->core->command;
6643    int n = strlen (command);
6644
6645    if (0 < n && command[n - 1] == ' ')
6646      command[n - 1] = '\0';
6647  }
6648
6649  return TRUE;
6650}
6651#endif /* not SH_TARGET_ALREADY_DEFINED */
6652
6653
6654/* Return address for Ith PLT stub in section PLT, for relocation REL
6655   or (bfd_vma) -1 if it should not be included.  */
6656
6657static bfd_vma
6658sh_elf_plt_sym_val (bfd_vma i, const asection *plt,
6659		    const arelent *rel ATTRIBUTE_UNUSED)
6660{
6661  const struct elf_sh_plt_info *plt_info;
6662
6663  plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0);
6664  return plt->vma + get_plt_offset (plt_info, i);
6665}
6666
6667/* Decide whether to attempt to turn absptr or lsda encodings in
6668   shared libraries into pcrel within the given input section.  */
6669
6670static bfd_boolean
6671sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED,
6672			      struct bfd_link_info *info,
6673			      asection *eh_frame_section ATTRIBUTE_UNUSED)
6674{
6675  struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6676
6677  /* We can't use PC-relative encodings in FDPIC binaries, in general.  */
6678  if (htab->fdpic_p)
6679    return FALSE;
6680
6681  return TRUE;
6682}
6683
6684/* Adjust the contents of an eh_frame_hdr section before they're output.  */
6685
6686static bfd_byte
6687sh_elf_encode_eh_address (bfd *abfd,
6688			  struct bfd_link_info *info,
6689			  asection *osec, bfd_vma offset,
6690			  asection *loc_sec, bfd_vma loc_offset,
6691			  bfd_vma *encoded)
6692{
6693  struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6694  struct elf_link_hash_entry *h;
6695
6696  if (!htab->fdpic_p)
6697    return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec,
6698				       loc_offset, encoded);
6699
6700  h = htab->root.hgot;
6701  BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6702
6703  if (! h || (sh_elf_osec_to_segment (abfd, osec)
6704	      == sh_elf_osec_to_segment (abfd, loc_sec->output_section)))
6705    return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6706				       loc_sec, loc_offset, encoded);
6707
6708  BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec)
6709	      == (sh_elf_osec_to_segment
6710		  (abfd, h->root.u.def.section->output_section)));
6711
6712  *encoded = osec->vma + offset
6713    - (h->root.u.def.value
6714       + h->root.u.def.section->output_section->vma
6715       + h->root.u.def.section->output_offset);
6716
6717  return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6718}
6719
6720#if !defined SH_TARGET_ALREADY_DEFINED
6721#define TARGET_BIG_SYM		sh_elf32_vec
6722#define TARGET_BIG_NAME		"elf32-sh"
6723#define TARGET_LITTLE_SYM	sh_elf32_le_vec
6724#define TARGET_LITTLE_NAME	"elf32-shl"
6725#endif
6726
6727#define ELF_ARCH		bfd_arch_sh
6728#define ELF_TARGET_ID		SH_ELF_DATA
6729#define ELF_MACHINE_CODE	EM_SH
6730#ifdef __QNXTARGET__
6731#define ELF_MAXPAGESIZE		0x1000
6732#else
6733#define ELF_MAXPAGESIZE		0x80
6734#endif
6735
6736#define elf_symbol_leading_char '_'
6737
6738#define bfd_elf32_bfd_reloc_type_lookup	sh_elf_reloc_type_lookup
6739#define bfd_elf32_bfd_reloc_name_lookup \
6740					sh_elf_reloc_name_lookup
6741#define elf_info_to_howto		sh_elf_info_to_howto
6742#define bfd_elf32_bfd_relax_section	sh_elf_relax_section
6743#define elf_backend_relocate_section	sh_elf_relocate_section
6744#define bfd_elf32_bfd_get_relocated_section_contents \
6745					sh_elf_get_relocated_section_contents
6746#define bfd_elf32_mkobject		sh_elf_mkobject
6747#define elf_backend_object_p		sh_elf_object_p
6748#define bfd_elf32_bfd_copy_private_bfd_data \
6749					sh_elf_copy_private_data
6750#define bfd_elf32_bfd_merge_private_bfd_data \
6751					sh_elf_merge_private_data
6752
6753#define elf_backend_gc_mark_hook	sh_elf_gc_mark_hook
6754#define elf_backend_check_relocs	sh_elf_check_relocs
6755#define elf_backend_copy_indirect_symbol \
6756					sh_elf_copy_indirect_symbol
6757#define elf_backend_create_dynamic_sections \
6758					sh_elf_create_dynamic_sections
6759#define bfd_elf32_bfd_link_hash_table_create \
6760					sh_elf_link_hash_table_create
6761#define elf_backend_adjust_dynamic_symbol \
6762					sh_elf_adjust_dynamic_symbol
6763#define elf_backend_always_size_sections \
6764					sh_elf_always_size_sections
6765#define elf_backend_size_dynamic_sections \
6766					sh_elf_size_dynamic_sections
6767#define elf_backend_omit_section_dynsym	sh_elf_omit_section_dynsym
6768#define elf_backend_finish_dynamic_symbol \
6769					sh_elf_finish_dynamic_symbol
6770#define elf_backend_finish_dynamic_sections \
6771					sh_elf_finish_dynamic_sections
6772#define elf_backend_reloc_type_class	sh_elf_reloc_type_class
6773#define elf_backend_plt_sym_val		sh_elf_plt_sym_val
6774#define elf_backend_can_make_relative_eh_frame \
6775					sh_elf_use_relative_eh_frame
6776#define elf_backend_can_make_lsda_relative_eh_frame \
6777					sh_elf_use_relative_eh_frame
6778#define elf_backend_encode_eh_address \
6779					sh_elf_encode_eh_address
6780
6781#define elf_backend_stack_align		8
6782#define elf_backend_can_gc_sections	1
6783#define elf_backend_can_refcount	1
6784#define elf_backend_want_got_plt	1
6785#define elf_backend_plt_readonly	1
6786#define elf_backend_want_plt_sym	0
6787#define elf_backend_got_header_size	12
6788#define elf_backend_dtrel_excludes_plt	1
6789
6790#define elf_backend_linux_prpsinfo32_ugid16	TRUE
6791
6792#if !defined SH_TARGET_ALREADY_DEFINED
6793
6794#include "elf32-target.h"
6795
6796/* NetBSD support.  */
6797#undef	TARGET_BIG_SYM
6798#define	TARGET_BIG_SYM			sh_elf32_nbsd_vec
6799#undef	TARGET_BIG_NAME
6800#define	TARGET_BIG_NAME			"elf32-sh-nbsd"
6801#undef	TARGET_LITTLE_SYM
6802#define	TARGET_LITTLE_SYM		sh_elf32_nbsd_le_vec
6803#undef	TARGET_LITTLE_NAME
6804#define	TARGET_LITTLE_NAME		"elf32-shl-nbsd"
6805#undef	ELF_MAXPAGESIZE
6806#define	ELF_MAXPAGESIZE			0x10000
6807#undef	ELF_COMMONPAGESIZE
6808#undef	elf_symbol_leading_char
6809#define	elf_symbol_leading_char		0
6810#undef	elf32_bed
6811#define	elf32_bed			elf32_sh_nbsd_bed
6812
6813#include "elf32-target.h"
6814
6815
6816/* Linux support.  */
6817#undef	TARGET_BIG_SYM
6818#define	TARGET_BIG_SYM			sh_elf32_linux_be_vec
6819#undef	TARGET_BIG_NAME
6820#define	TARGET_BIG_NAME			"elf32-shbig-linux"
6821#undef	TARGET_LITTLE_SYM
6822#define	TARGET_LITTLE_SYM		sh_elf32_linux_vec
6823#undef	TARGET_LITTLE_NAME
6824#define	TARGET_LITTLE_NAME		"elf32-sh-linux"
6825#undef	ELF_COMMONPAGESIZE
6826#define	ELF_COMMONPAGESIZE		0x1000
6827
6828#undef	elf_backend_grok_prstatus
6829#define	elf_backend_grok_prstatus	elf32_shlin_grok_prstatus
6830#undef	elf_backend_grok_psinfo
6831#define	elf_backend_grok_psinfo		elf32_shlin_grok_psinfo
6832#undef	elf32_bed
6833#define	elf32_bed			elf32_sh_lin_bed
6834
6835#include "elf32-target.h"
6836
6837
6838/* FDPIC support.  */
6839#undef	TARGET_BIG_SYM
6840#define	TARGET_BIG_SYM			sh_elf32_fdpic_be_vec
6841#undef	TARGET_BIG_NAME
6842#define	TARGET_BIG_NAME			"elf32-shbig-fdpic"
6843#undef	TARGET_LITTLE_SYM
6844#define	TARGET_LITTLE_SYM		sh_elf32_fdpic_le_vec
6845#undef	TARGET_LITTLE_NAME
6846#define	TARGET_LITTLE_NAME		"elf32-sh-fdpic"
6847
6848#undef	elf32_bed
6849#define	elf32_bed			elf32_sh_fd_bed
6850
6851#include "elf32-target.h"
6852
6853/* VxWorks support.  */
6854#undef	TARGET_BIG_SYM
6855#define	TARGET_BIG_SYM			sh_elf32_vxworks_vec
6856#undef	TARGET_BIG_NAME
6857#define	TARGET_BIG_NAME			"elf32-sh-vxworks"
6858#undef	TARGET_LITTLE_SYM
6859#define	TARGET_LITTLE_SYM		sh_elf32_vxworks_le_vec
6860#undef	TARGET_LITTLE_NAME
6861#define	TARGET_LITTLE_NAME		"elf32-shl-vxworks"
6862#undef	elf32_bed
6863#define	elf32_bed			elf32_sh_vxworks_bed
6864
6865#undef	elf_backend_want_plt_sym
6866#define	elf_backend_want_plt_sym	1
6867#undef	elf_symbol_leading_char
6868#define	elf_symbol_leading_char		'_'
6869#define	elf_backend_want_got_underscore 1
6870#undef	elf_backend_grok_prstatus
6871#undef	elf_backend_grok_psinfo
6872#undef	elf_backend_add_symbol_hook
6873#define	elf_backend_add_symbol_hook	elf_vxworks_add_symbol_hook
6874#undef	elf_backend_link_output_symbol_hook
6875#define	elf_backend_link_output_symbol_hook \
6876					elf_vxworks_link_output_symbol_hook
6877#undef	elf_backend_emit_relocs
6878#define	elf_backend_emit_relocs		elf_vxworks_emit_relocs
6879#undef	elf_backend_final_write_processing
6880#define	elf_backend_final_write_processing \
6881					elf_vxworks_final_write_processing
6882#undef	ELF_MAXPAGESIZE
6883#define	ELF_MAXPAGESIZE			0x1000
6884#undef	ELF_COMMONPAGESIZE
6885
6886#include "elf32-target.h"
6887
6888#endif /* not SH_TARGET_ALREADY_DEFINED */
6889