Unify the behaviour of ld.bfd and ld.gold with respect to warning about unresolved...
[deliverable/binutils-gdb.git] / bfd / elf32-sh.c
CommitLineData
ef230218 1/* Renesas / SuperH SH specific support for 32-bit ELF
b3adc24a 2 Copyright (C) 1996-2020 Free Software Foundation, Inc.
252b5132
RH
3 Contributed by Ian Lance Taylor, Cygnus Support.
4
571fe01f 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
571fe01f
NC
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
571fe01f 10 (at your option) any later version.
252b5132 11
571fe01f
NC
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
571fe01f
NC
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
cd123cb7
NC
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
252b5132 21
252b5132 22#include "sysdep.h"
3db64b00 23#include "bfd.h"
252b5132
RH
24#include "bfdlink.h"
25#include "libbfd.h"
26#include "elf-bfd.h"
55e6e397 27#include "elf-vxworks.h"
252b5132 28#include "elf/sh.h"
8e45593f 29#include "dwarf2.h"
f6f9408f 30#include "libiberty.h"
871ec896 31#include "../opcodes/sh-opc.h"
252b5132 32
bb294208
AM
33/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
34#define OCTETS_PER_BYTE(ABFD, SEC) 1
35
252b5132 36static bfd_reloc_status_type sh_elf_reloc
09fd220b 37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 38static bfd_reloc_status_type sh_elf_ignore_reloc
09fd220b 39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
b34976b6 40static bfd_boolean sh_elf_relax_delete_bytes
09fd220b 41 (bfd *, asection *, bfd_vma, int);
b34976b6 42static bfd_boolean sh_elf_align_loads
09fd220b 43 (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *);
b34976b6 44static bfd_boolean sh_elf_swap_insns
09fd220b 45 (bfd *, asection *, void *, bfd_byte *, bfd_vma);
3376eaf5 46static int sh_elf_optimized_tls_reloc
09fd220b 47 (struct bfd_link_info *, int, int);
3376eaf5 48static bfd_vma dtpoff_base
09fd220b 49 (struct bfd_link_info *);
267fb3c1 50static bfd_vma tpoff
09fd220b 51 (struct bfd_link_info *, bfd_vma);
37c644f2
AO
52
53/* The name of the dynamic interpreter. This is put in the .interp
54 section. */
55
56#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
252b5132 57
8e45593f
NC
58/* FDPIC binaries have a default 128K stack. */
59#define DEFAULT_STACK_SIZE 0x20000
60
55e6e397 61#define MINUS_ONE ((bfd_vma) 0 - 1)
8e45593f
NC
62
63/* Decide whether a reference to a symbol can be resolved locally or
64 not. If the symbol is protected, we want the local address, but
65 its function descriptor must be assigned by the dynamic linker. */
66#define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
67 (SYMBOL_REFERENCES_LOCAL (INFO, H) \
68 || ! elf_hash_table (INFO)->dynamic_sections_created)
55e6e397
RS
69\f
70#define SH_PARTIAL32 TRUE
71#define SH_SRC_MASK32 0xffffffff
72#define SH_ELF_RELOC sh_elf_reloc
38b1a46c
NC
73static reloc_howto_type sh_elf_howto_table[] =
74{
55e6e397
RS
75#include "elf32-sh-relocs.h"
76};
fbca6ad9 77
55e6e397
RS
78#define SH_PARTIAL32 FALSE
79#define SH_SRC_MASK32 0
80#define SH_ELF_RELOC bfd_elf_generic_reloc
81static reloc_howto_type sh_vxworks_howto_table[] =
82{
83#include "elf32-sh-relocs.h"
84};
85\f
86/* Return true if OUTPUT_BFD is a VxWorks object. */
fbca6ad9 87
55e6e397 88static bfd_boolean
527a23b8 89vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED)
55e6e397 90{
211dc24b 91#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590
AM
92 extern const bfd_target sh_elf32_vxworks_le_vec;
93 extern const bfd_target sh_elf32_vxworks_vec;
fbca6ad9 94
6d00b590
AM
95 return (abfd->xvec == &sh_elf32_vxworks_le_vec
96 || abfd->xvec == &sh_elf32_vxworks_vec);
527a23b8
NC
97#else
98 return FALSE;
99#endif
55e6e397 100}
fbca6ad9 101
8e45593f
NC
102/* Return true if OUTPUT_BFD is an FDPIC object. */
103
104static bfd_boolean
105fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED)
106{
211dc24b 107#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590
AM
108 extern const bfd_target sh_elf32_fdpic_le_vec;
109 extern const bfd_target sh_elf32_fdpic_be_vec;
8e45593f 110
6d00b590
AM
111 return (abfd->xvec == &sh_elf32_fdpic_le_vec
112 || abfd->xvec == &sh_elf32_fdpic_be_vec);
8e45593f
NC
113#else
114 return FALSE;
115#endif
116}
117
55e6e397 118/* Return the howto table for ABFD. */
fbca6ad9 119
55e6e397
RS
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}
252b5132 127
015551fc 128static bfd_reloc_status_type
09fd220b
KK
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)
015551fc
JR
133{
134 static bfd_vma last_addr;
00fdaf47 135 static asection *last_symbol_section;
015551fc
JR
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. */
07515404 142 if (addr > bfd_get_section_limit (input_bfd, input_section))
015551fc
JR
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 {
eea6121a
AM
167 if (!bfd_malloc_and_get_section (input_bfd, symbol_section,
168 &contents))
015551fc 169 {
eea6121a
AM
170 if (contents != NULL)
171 free (contents);
015551fc
JR
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;
61ff1804 183 diff = (last_ptr - ptr) >> 1;
015551fc
JR
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
a0fc8ba1 199 while (start0 && IS_PPI (contents + start0))
015551fc
JR
200 start0 -= 2;
201 start0 = start - 2 - ((start - start0) & 2);
202 start = start0 - cum_diff - 2;
203 end = start0;
204 }
205
6cdc0ccc
AM
206 if (contents != NULL
207 && elf_section_data (symbol_section)->this_hdr.contents != contents)
208 free (contents);
015551fc
JR
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
61ff1804 221 x = (insn & ~0xff) | (x & 0xff);
dc810e39 222 bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
015551fc
JR
223
224 return bfd_reloc_ok;
225}
226
227/* This function is used for normal relocs. This used to be like the COFF
252b5132
RH
228 function, and is almost certainly incorrect for other ELF targets. */
229
230static bfd_reloc_status_type
09fd220b
KK
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)
252b5132 234{
96e2dbda 235 bfd_vma insn;
252b5132
RH
236 bfd_vma sym_value;
237 enum elf_sh_reloc_type r_type;
238 bfd_vma addr = reloc_entry->address;
bb294208
AM
239 bfd_size_type octets = addr * OCTETS_PER_BYTE (abfd, input_section);
240 bfd_byte *hit_data = (bfd_byte *) data + octets;
252b5132
RH
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. */
015551fc 253 if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
252b5132
RH
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
cd21f5da 260 /* PR 17512: file: 9891ca98. */
bb294208 261 if (octets + bfd_get_reloc_size (reloc_entry->howto)
6346d5ca 262 > bfd_get_section_limit_octets (abfd, input_section))
cd21f5da
NC
263 return bfd_reloc_outofrange;
264
252b5132 265 if (bfd_is_com_section (symbol_in->section))
435b1e90
KH
266 sym_value = 0;
267 else
252b5132
RH
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;
96e2dbda 277 bfd_put_32 (abfd, insn, hit_data);
252b5132
RH
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);
96e2dbda
AM
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)
252b5132
RH
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
09fd220b
KK
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)
252b5132
RH
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
38b1a46c
NC
317struct elf_reloc_map
318{
252b5132
RH
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
38b1a46c
NC
325static const struct elf_reloc_map sh_reloc_map[] =
326{
252b5132
RH
327 { BFD_RELOC_NONE, R_SH_NONE },
328 { BFD_RELOC_32, R_SH_DIR32 },
d38eb334
DD
329 { BFD_RELOC_16, R_SH_DIR16 },
330 { BFD_RELOC_8, R_SH_DIR8 },
252b5132
RH
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 },
015551fc
JR
348 { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
349 { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
3376eaf5
KK
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 },
37c644f2
AO
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 },
fbca6ad9 366 { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
8e45593f
NC
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 },
252b5132
RH
374};
375
376/* Given a BFD reloc code, return the howto structure for the
55e6e397 377 corresponding SH ELF reloc. */
252b5132
RH
378
379static reloc_howto_type *
55e6e397 380sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
252b5132
RH
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)
55e6e397 387 return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val;
252b5132
RH
388 }
389
390 return NULL;
391}
392
157090f7
AM
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
252b5132
RH
422/* Given an ELF reloc, fill in the howto field of a relent. */
423
f3185997 424static bfd_boolean
55e6e397 425sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
252b5132
RH
426{
427 unsigned int r;
428
429 r = ELF32_R_TYPE (dst->r_info);
430
cd21f5da
NC
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 {
695344c0 439 /* xgettext:c-format */
0aa13fee 440 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4eca0228 441 abfd, r);
cd21f5da 442 bfd_set_error (bfd_error_bad_value);
f3185997 443 return FALSE;
cd21f5da 444 }
252b5132 445
55e6e397 446 cache_ptr->howto = get_howto_table (abfd) + r;
f3185997 447 return TRUE;
252b5132
RH
448}
449\f
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
b34976b6 460static bfd_boolean
09fd220b
KK
461sh_elf_relax_section (bfd *abfd, asection *sec,
462 struct bfd_link_info *link_info, bfd_boolean *again)
252b5132
RH
463{
464 Elf_Internal_Shdr *symtab_hdr;
465 Elf_Internal_Rela *internal_relocs;
b34976b6 466 bfd_boolean have_code;
252b5132
RH
467 Elf_Internal_Rela *irel, *irelend;
468 bfd_byte *contents = NULL;
6cdc0ccc 469 Elf_Internal_Sym *isymbuf = NULL;
252b5132 470
b34976b6 471 *again = FALSE;
252b5132 472
0e1862bb 473 if (bfd_link_relocatable (link_info)
252b5132
RH
474 || (sec->flags & SEC_RELOC) == 0
475 || sec->reloc_count == 0)
b34976b6 476 return TRUE;
252b5132 477
0ffa91dd 478 symtab_hdr = &elf_symtab_hdr (abfd);
252b5132 479
45d6a902 480 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 481 (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
252b5132
RH
482 link_info->keep_memory));
483 if (internal_relocs == NULL)
484 goto error_return;
252b5132 485
b34976b6 486 have_code = FALSE;
252b5132
RH
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)
b34976b6 497 have_code = TRUE;
252b5132
RH
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 {
eea6121a 509 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
252b5132
RH
510 goto error_return;
511 }
512 }
513
514 /* The r_addend field of the R_SH_USES reloc will point us to
067653c5
AM
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. */
252b5132 518 laddr = irel->r_offset + 4 + irel->r_addend;
eea6121a 519 if (laddr >= sec->size)
252b5132 520 {
695344c0 521 /* xgettext:c-format */
2dcf00ce
AM
522 _bfd_error_handler
523 (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES offset"),
524 abfd, (uint64_t) irel->r_offset);
252b5132
RH
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
067653c5 530 do. */
252b5132
RH
531 if ((insn & 0xf000) != 0xd000)
532 {
4eca0228 533 _bfd_error_handler
695344c0 534 /* xgettext:c-format */
2dcf00ce
AM
535 (_("%pB: %#" PRIx64 ": warning: "
536 "R_SH_USES points to unrecognized insn 0x%x"),
537 abfd, (uint64_t) irel->r_offset, insn);
252b5132
RH
538 continue;
539 }
540
541 /* Get the address from which the register is being loaded. The
99e4ae17
AJ
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. */
252b5132
RH
547 paddr = insn & 0xff;
548 paddr *= 4;
dc810e39 549 paddr += (laddr + 4) &~ (bfd_vma) 3;
eea6121a 550 if (paddr >= sec->size)
252b5132 551 {
4eca0228 552 _bfd_error_handler
695344c0 553 /* xgettext:c-format */
2dcf00ce
AM
554 (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES load offset"),
555 abfd, (uint64_t) irel->r_offset);
252b5132
RH
556 continue;
557 }
558
559 /* Get the reloc for the address from which the register is
067653c5
AM
560 being loaded. This reloc will tell us which function is
561 actually being called. */
252b5132
RH
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 {
4eca0228 568 _bfd_error_handler
695344c0 569 /* xgettext:c-format */
2dcf00ce
AM
570 (_("%pB: %#" PRIx64 ": warning: could not find expected reloc"),
571 abfd, (uint64_t) paddr);
252b5132
RH
572 continue;
573 }
574
575 /* Read this BFD's symbols if we haven't done so already. */
6cdc0ccc 576 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
252b5132 577 {
6cdc0ccc
AM
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;
252b5132
RH
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 {
9ad5cbcf 590 /* A local symbol. */
6cdc0ccc 591 Elf_Internal_Sym *isym;
252b5132 592
6cdc0ccc
AM
593 isym = isymbuf + ELF32_R_SYM (irelfn->r_info);
594 if (isym->st_shndx
d426c6b0 595 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
252b5132 596 {
4eca0228 597 _bfd_error_handler
695344c0 598 /* xgettext:c-format */
2dcf00ce
AM
599 (_("%pB: %#" PRIx64 ": warning: symbol in unexpected section"),
600 abfd, (uint64_t) paddr);
252b5132
RH
601 continue;
602 }
603
6cdc0ccc 604 symval = (isym->st_value
252b5132
RH
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
067653c5
AM
620 symbol. Just ignore it--it will be caught by the
621 regular reloc processing. */
252b5132
RH
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
55e6e397
RS
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;
252b5132
RH
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));
f725025b
DD
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)
252b5132
RH
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;
252b5132 662 elf_section_data (sec)->this_hdr.contents = contents;
6cdc0ccc 663 symtab_hdr->contents = (unsigned char *) isymbuf;
252b5132 664
8c784016 665 /* Replace the jmp/jsr with a bra/bsr. */
252b5132
RH
666
667 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
8c784016 668 replace the jmp/jsr with a bra/bsr. */
252b5132 669 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
bdfaef52
JR
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. */
0e71e495
BE
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. */
8c784016
KK
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);
0e71e495 683
bdfaef52 684 irel->r_addend = -4;
252b5132 685
f725025b
DD
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
252b5132 692 /* See if there is another R_SH_USES reloc referring to the same
067653c5 693 register load. */
252b5132
RH
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
067653c5
AM
708 function address is stored. Do this before deleting any
709 bytes, to avoid confusion about the address. */
252b5132
RH
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
067653c5
AM
720 other function call to come within range, we should relax
721 again. Note that this is not required, and it may be slow. */
b34976b6 722 *again = TRUE;
252b5132
RH
723
724 /* Now check whether we got a COUNT reloc. */
725 if (irelcount >= irelend)
726 {
4eca0228 727 _bfd_error_handler
695344c0 728 /* xgettext:c-format */
2dcf00ce
AM
729 (_("%pB: %#" PRIx64 ": warning: "
730 "could not find expected COUNT reloc"),
731 abfd, (uint64_t) paddr);
252b5132
RH
732 continue;
733 }
734
735 /* The number of uses is stored in the r_addend field. We've
067653c5 736 just deleted one. */
252b5132
RH
737 if (irelcount->r_addend == 0)
738 {
695344c0 739 /* xgettext:c-format */
2dcf00ce
AM
740 _bfd_error_handler (_("%pB: %#" PRIx64 ": warning: bad count"),
741 abfd, (uint64_t) paddr);
252b5132
RH
742 continue;
743 }
744
745 --irelcount->r_addend;
746
747 /* If there are no more uses, we can delete the address. Reload
067653c5
AM
748 the address from irelfn, in case it was changed by the
749 previous call to sh_elf_relax_delete_bytes. */
252b5132
RH
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. */
bdfaef52
JR
761 if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4
762 && have_code)
252b5132 763 {
b34976b6 764 bfd_boolean swapped;
252b5132
RH
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 {
eea6121a 773 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
252b5132
RH
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;
252b5132 785 elf_section_data (sec)->this_hdr.contents = contents;
6cdc0ccc 786 symtab_hdr->contents = (unsigned char *) isymbuf;
252b5132
RH
787 }
788 }
789
6cdc0ccc
AM
790 if (isymbuf != NULL
791 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132
RH
792 {
793 if (! link_info->keep_memory)
6cdc0ccc 794 free (isymbuf);
252b5132
RH
795 else
796 {
6cdc0ccc
AM
797 /* Cache the symbols for elf_link_input_bfd. */
798 symtab_hdr->contents = (unsigned char *) isymbuf;
252b5132 799 }
9ad5cbcf
AM
800 }
801
6cdc0ccc
AM
802 if (contents != NULL
803 && elf_section_data (sec)->this_hdr.contents != contents)
252b5132
RH
804 {
805 if (! link_info->keep_memory)
6cdc0ccc
AM
806 free (contents);
807 else
252b5132 808 {
6cdc0ccc
AM
809 /* Cache the section contents for elf_link_input_bfd. */
810 elf_section_data (sec)->this_hdr.contents = contents;
252b5132 811 }
252b5132
RH
812 }
813
6cdc0ccc
AM
814 if (internal_relocs != NULL
815 && elf_section_data (sec)->relocs != internal_relocs)
816 free (internal_relocs);
817
b34976b6 818 return TRUE;
252b5132
RH
819
820 error_return:
6cdc0ccc
AM
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);
9ad5cbcf 830
b34976b6 831 return FALSE;
252b5132
RH
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
b34976b6 838static bfd_boolean
09fd220b
KK
839sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr,
840 int count)
252b5132
RH
841{
842 Elf_Internal_Shdr *symtab_hdr;
9ad5cbcf 843 unsigned int sec_shndx;
252b5132
RH
844 bfd_byte *contents;
845 Elf_Internal_Rela *irel, *irelend;
846 Elf_Internal_Rela *irelalign;
847 bfd_vma toaddr;
6cdc0ccc 848 Elf_Internal_Sym *isymbuf, *isym, *isymend;
9ad5cbcf
AM
849 struct elf_link_hash_entry **sym_hashes;
850 struct elf_link_hash_entry **end_hashes;
851 unsigned int symcount;
252b5132
RH
852 asection *o;
853
0ffa91dd 854 symtab_hdr = &elf_symtab_hdr (abfd);
6cdc0ccc 855 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
9ad5cbcf
AM
856
857 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
252b5132
RH
858
859 contents = elf_section_data (sec)->this_hdr.contents;
860
de194d85 861 /* The deletion must stop at the next ALIGN reloc for an alignment
252b5132
RH
862 power larger than the number of bytes we are deleting. */
863
864 irelalign = NULL;
eea6121a 865 toaddr = sec->size;
252b5132
RH
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. */
dc810e39
AM
882 memmove (contents + addr, contents + addr + count,
883 (size_t) (toaddr - addr - count));
252b5132 884 if (irelalign == NULL)
eea6121a 885 sec->size -= count;
252b5132
RH
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)
dc810e39 894 bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
252b5132
RH
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;
252b5132
RH
903 int off, adjust, oinsn;
904 bfd_signed_vma voff = 0;
b34976b6 905 bfd_boolean overflow;
252b5132
RH
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
067653c5 928 includes the bytes we have deleted. */
252b5132
RH
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
067653c5
AM
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. */
252b5132
RH
954 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
955 {
6cdc0ccc
AM
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))
252b5132
RH
960 {
961 bfd_vma val;
962
55e6e397
RS
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 }
252b5132
RH
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:
bdfaef52
JR
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 }
252b5132
RH
997 else
998 {
252b5132
RH
999 if (off & 0x800)
1000 off -= 0x1000;
1001 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
bdfaef52
JR
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.
4cc11e76 1006 N.B. If we want to abandon in-place changes here and
bdfaef52
JR
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;
252b5132
RH
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;
435b1e90 1021 stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
252b5132
RH
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
06e1ba78 1029 The r_addend field holds the difference between the reloc
252b5132
RH
1030 address and L1. That is the start of the reloc, and
1031 adding in the contents gives us the top. We must adjust
06e1ba78
JR
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. */
252b5132 1035
06e1ba78
JR
1036 stop = irel->r_offset;
1037 start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
252b5132
RH
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
252b5132
RH
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;
b34976b6 1080 overflow = FALSE;
252b5132
RH
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))
b34976b6 1091 overflow = TRUE;
dc810e39 1092 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
1093 break;
1094
1095 case R_SH_IND12W:
1096 insn += adjust / 2;
1097 if ((oinsn & 0xf000) != (insn & 0xf000))
b34976b6 1098 overflow = TRUE;
dc810e39 1099 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
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))
b34976b6 1112 overflow = TRUE;
dc810e39 1113 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
1114 break;
1115
851cde10
JR
1116 case R_SH_SWITCH8:
1117 voff += adjust;
1118 if (voff < 0 || voff >= 0xff)
b34976b6 1119 overflow = TRUE;
851cde10
JR
1120 bfd_put_8 (abfd, voff, contents + nraddr);
1121 break;
1122
252b5132
RH
1123 case R_SH_SWITCH16:
1124 voff += adjust;
1125 if (voff < - 0x8000 || voff >= 0x8000)
b34976b6 1126 overflow = TRUE;
dc810e39 1127 bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
252b5132
RH
1128 break;
1129
1130 case R_SH_SWITCH32:
1131 voff += adjust;
dc810e39 1132 bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
252b5132
RH
1133 break;
1134
1135 case R_SH_USES:
1136 irel->r_addend += adjust;
1137 break;
1138 }
1139
1140 if (overflow)
1141 {
4eca0228 1142 _bfd_error_handler
695344c0 1143 /* xgettext:c-format */
2dcf00ce
AM
1144 (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1145 abfd, (uint64_t) irel->r_offset);
252b5132 1146 bfd_set_error (bfd_error_bad_value);
b34976b6 1147 return FALSE;
252b5132
RH
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
b34976b6 1169 FALSE, we should free them, if we are permitted to, when we
067653c5 1170 leave sh_coff_relax_section. */
45d6a902 1171 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 1172 (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE));
252b5132 1173 if (internal_relocs == NULL)
b34976b6 1174 return FALSE;
252b5132
RH
1175
1176 ocontents = NULL;
1177 irelscanend = internal_relocs + o->reloc_count;
1178 for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
1179 {
084aa3aa
JR
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.
b34976b6 1193 Perhaps, if info->keep_memory is FALSE, we
067653c5
AM
1194 should free them, if we are permitted to,
1195 when we leave sh_coff_relax_section. */
eea6121a
AM
1196 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1197 {
1198 if (ocontents != NULL)
1199 free (ocontents);
1200 return FALSE;
1201 }
1202
084aa3aa
JR
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))
dc810e39 1221 bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
084aa3aa
JR
1222 ocontents + irelscan->r_offset);
1223 else if (stop > addr
1224 && stop < toaddr
1225 && (start <= addr || start >= toaddr))
dc810e39 1226 bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
084aa3aa
JR
1227 ocontents + irelscan->r_offset);
1228 }
1229
252b5132
RH
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
252b5132 1236
6cdc0ccc
AM
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))
252b5132
RH
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.
b34976b6 1251 Perhaps, if info->keep_memory is FALSE, we
067653c5
AM
1252 should free them, if we are permitted to,
1253 when we leave sh_coff_relax_section. */
eea6121a
AM
1254 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1255 {
1256 if (ocontents != NULL)
1257 free (ocontents);
1258 return FALSE;
1259 }
1260
252b5132
RH
1261 elf_section_data (o)->this_hdr.contents = ocontents;
1262 }
1263 }
1264
1265 val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
6cdc0ccc 1266 val += isym->st_value;
252b5132
RH
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. */
6cdc0ccc
AM
1275 isymend = isymbuf + symtab_hdr->sh_info;
1276 for (isym = isymbuf; isym < isymend; isym++)
252b5132 1277 {
6cdc0ccc
AM
1278 if (isym->st_shndx == sec_shndx
1279 && isym->st_value > addr
1280 && isym->st_value < toaddr)
1281 isym->st_value -= count;
252b5132
RH
1282 }
1283
1284 /* Now adjust the global symbols defined in this section. */
9ad5cbcf
AM
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++)
252b5132 1290 {
9ad5cbcf
AM
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)
252b5132 1297 {
9ad5cbcf 1298 sym_hash->root.u.def.value -= count;
252b5132
RH
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,
dc810e39 1315 (int) (alignto - alignaddr));
252b5132
RH
1316 }
1317 }
1318
b34976b6 1319 return TRUE;
252b5132
RH
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
b34976b6 1325static bfd_boolean
09fd220b
KK
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)
252b5132
RH
1330{
1331 Elf_Internal_Rela *irel, *irelend;
1332 bfd_vma *labels = NULL;
1333 bfd_vma *label, *label_end;
dc810e39 1334 bfd_size_type amt;
252b5132 1335
b34976b6 1336 *pswapped = FALSE;
252b5132
RH
1337
1338 irelend = internal_relocs + sec->reloc_count;
1339
1340 /* Get all the addresses with labels on them. */
dc810e39
AM
1341 amt = sec->reloc_count;
1342 amt *= sizeof (bfd_vma);
1343 labels = (bfd_vma *) bfd_malloc (amt);
252b5132
RH
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
eea6121a 1377 stop = sec->size;
252b5132
RH
1378
1379 if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
09fd220b 1380 internal_relocs, &label,
252b5132
RH
1381 label_end, start, stop, pswapped))
1382 goto error_return;
1383 }
1384
1385 free (labels);
1386
b34976b6 1387 return TRUE;
252b5132
RH
1388
1389 error_return:
1390 if (labels != NULL)
1391 free (labels);
b34976b6 1392 return FALSE;
252b5132
RH
1393}
1394
1395/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
1396
b34976b6 1397static bfd_boolean
09fd220b
KK
1398sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs,
1399 bfd_byte *contents, bfd_vma addr)
252b5132
RH
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);
dc810e39
AM
1408 bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
1409 bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
252b5132
RH
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
067653c5
AM
1419 adjust. These relocs do not apply to the instruction itself,
1420 but are only associated with the address. */
252b5132
RH
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
067653c5
AM
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). */
252b5132
RH
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;
b34976b6 1462 bfd_boolean overflow;
252b5132
RH
1463
1464 loc = contents + irel->r_offset;
b34976b6 1465 overflow = FALSE;
252b5132
RH
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))
b34976b6 1477 overflow = TRUE;
dc810e39 1478 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
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))
b34976b6 1486 overflow = TRUE;
dc810e39 1487 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
1488 break;
1489
1490 case R_SH_DIR8WPL:
1491 /* This reloc ignores the least significant 3 bits of
067653c5
AM
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. */
252b5132
RH
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))
b34976b6 1503 overflow = TRUE;
dc810e39 1504 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
1505 }
1506
1507 break;
1508 }
1509
1510 if (overflow)
1511 {
4eca0228 1512 _bfd_error_handler
695344c0 1513 /* xgettext:c-format */
2dcf00ce
AM
1514 (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1515 abfd, (uint64_t) irel->r_offset);
252b5132 1516 bfd_set_error (bfd_error_bad_value);
b34976b6 1517 return FALSE;
252b5132
RH
1518 }
1519 }
1520 }
1521
b34976b6 1522 return TRUE;
252b5132
RH
1523}
1524\f
55e6e397
RS
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 */
8e45593f
NC
1554 bfd_boolean got20; /* TRUE if got_entry points to a movi20
1555 instruction (instead of a constant pool
1556 entry). */
55e6e397
RS
1557 } symbol_fields;
1558
1559 /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
1560 bfd_vma symbol_resolve_offset;
8e45593f
NC
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;
55e6e397
RS
1566};
1567
37c644f2 1568/* The size in bytes of an entry in the procedure linkage table. */
252b5132 1569
55e6e397 1570#define ELF_PLT_ENTRY_SIZE 28
37c644f2
AO
1571
1572/* First entry in an absolute procedure linkage table look like this. */
1573
6c426cf3 1574/* Note - this code has been "optimised" not to use r2. r2 is used by
4cc11e76 1575 GCC to return the address of large structures, so it should not be
6c426cf3
NC
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. */
55e6e397 1582static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
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
55e6e397 1598static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
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
55e6e397 1617static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1618{
1619 0xd0, 0x04, /* mov.l 1f,r0 */
55e6e397 1620 0x60, 0x02, /* mov.l @(r0,r12),r0 */
6c426cf3
NC
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
55e6e397 1632static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
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
55e6e397 1649static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
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
55e6e397 1665static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
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
55e6e397
RS
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,
8e45593f
NC
1690 { 20, 16, 24, FALSE },
1691 8,
1692 NULL
55e6e397
RS
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,
8e45593f
NC
1701 { 20, 16, 24, FALSE },
1702 8,
1703 NULL
55e6e397
RS
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,
8e45593f
NC
1714 { 20, MINUS_ONE, 24, FALSE },
1715 8,
1716 NULL
55e6e397
RS
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,
8e45593f
NC
1725 { 20, MINUS_ONE, 24, FALSE },
1726 8,
1727 NULL
55e6e397
RS
1728 },
1729 }
1730};
252b5132 1731
55e6e397
RS
1732#define VXWORKS_PLT_HEADER_SIZE 12
1733#define VXWORKS_PLT_ENTRY_SIZE 24
252b5132 1734
55e6e397
RS
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};
252b5132 1743
55e6e397
RS
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,
8e45593f
NC
1818 { 8, 14, 20, FALSE },
1819 12,
1820 NULL
55e6e397
RS
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,
8e45593f
NC
1829 { 8, 14, 20, FALSE },
1830 12,
1831 NULL
55e6e397
RS
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,
8e45593f
NC
1842 { 8, MINUS_ONE, 20, FALSE },
1843 12,
1844 NULL
55e6e397
RS
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,
8e45593f
NC
1853 { 8, MINUS_ONE, 20, FALSE },
1854 12,
1855 NULL
55e6e397
RS
1856 },
1857 }
1858};
9bdafcce 1859
8e45593f
NC
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
55e6e397
RS
2016/* Return the type of PLT associated with ABFD. PIC_P is true if
2017 the object is position-independent. */
9bdafcce 2018
55e6e397 2019static const struct elf_sh_plt_info *
8e45593f 2020get_plt_info (bfd *abfd, bfd_boolean pic_p)
55e6e397 2021{
8e45593f
NC
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 }
55e6e397
RS
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}
9bdafcce 2035
55e6e397
RS
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. */
9bdafcce 2039
55e6e397
RS
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}
015551fc 2046
8e45593f
NC
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
55e6e397
RS
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{
8e45593f
NC
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;
55e6e397
RS
2072}
2073
2074/* Do the inverse operation. */
2075
2076static bfd_vma
91d6fa6a 2077get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index)
55e6e397 2078{
8e45593f
NC
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));
55e6e397
RS
2093}
2094
8e45593f
NC
2095union gotref
2096{
2097 bfd_signed_vma refcount;
2098 bfd_vma offset;
2099};
2100
37c644f2
AO
2101/* sh ELF linker hash entry. */
2102
38b1a46c
NC
2103struct elf_sh_link_hash_entry
2104{
37c644f2
AO
2105 struct elf_link_hash_entry root;
2106
067653c5 2107 /* Track dynamic relocs copied for this symbol. */
3bf083ed 2108 struct elf_dyn_relocs *dyn_relocs;
4989d792
SC
2109
2110 bfd_signed_vma gotplt_refcount;
3376eaf5 2111
8e45593f
NC
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
85e02784 2126 enum got_type {
8e45593f
NC
2127 GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC
2128 } got_type;
3376eaf5
KK
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
8e45593f
NC
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;
37c644f2
AO
2142};
2143
3376eaf5
KK
2144#define sh_elf_tdata(abfd) \
2145 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2146
8e45593f
NC
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)
3376eaf5 2152
0ffa91dd
NC
2153#define is_sh_elf(bfd) \
2154 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2155 && elf_tdata (bfd) != NULL \
4dfe6ac6 2156 && elf_object_id (bfd) == SH_ELF_DATA)
0ffa91dd 2157
3376eaf5
KK
2158/* Override the generic function because we need to store sh_elf_obj_tdata
2159 as the specific tdata. */
2160
b34976b6 2161static bfd_boolean
09fd220b 2162sh_elf_mkobject (bfd *abfd)
3376eaf5 2163{
0ffa91dd 2164 return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata),
4dfe6ac6 2165 SH_ELF_DATA);
3376eaf5 2166}
b34976b6 2167
37c644f2
AO
2168/* sh ELF linker hash table. */
2169
38b1a46c
NC
2170struct elf_sh_link_hash_table
2171{
37c644f2 2172 struct elf_link_hash_table root;
37c644f2 2173
067653c5 2174 /* Short-cuts to get to dynamic linker sections. */
067653c5
AM
2175 asection *sdynbss;
2176 asection *srelbss;
8e45593f
NC
2177 asection *sfuncdesc;
2178 asection *srelfuncdesc;
2179 asection *srofixup;
37c644f2 2180
55e6e397
RS
2181 /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
2182 asection *srelplt2;
2183
87d72d41
AM
2184 /* Small local sym cache. */
2185 struct sym_cache sym_cache;
3376eaf5
KK
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;
55e6e397
RS
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;
8e45593f
NC
2199
2200 /* True if the target system uses FDPIC. */
2201 bfd_boolean fdpic_p;
067653c5 2202};
37c644f2
AO
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, \
09fd220b 2209 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
37c644f2
AO
2210 (info)))
2211
2212/* Get the sh ELF linker hash table from a link_info structure. */
2213
2214#define sh_elf_hash_table(p) \
4dfe6ac6
NC
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)
37c644f2
AO
2217
2218/* Create an entry in an sh ELF linker hash table. */
2219
2220static struct bfd_hash_entry *
09fd220b
KK
2221sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2222 struct bfd_hash_table *table,
2223 const char *string)
37c644f2
AO
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 {
396a6083
SC
2243 ret->dyn_relocs = NULL;
2244 ret->gotplt_refcount = 0;
8e45593f
NC
2245 ret->funcdesc.refcount = 0;
2246 ret->abs_funcdesc_refcount = 0;
2247 ret->got_type = GOT_UNKNOWN;
37c644f2
AO
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 *
09fd220b 2256sh_elf_link_hash_table_create (bfd *abfd)
37c644f2
AO
2257{
2258 struct elf_sh_link_hash_table *ret;
986f0783 2259 size_t amt = sizeof (struct elf_sh_link_hash_table);
37c644f2 2260
0e5de31a 2261 ret = (struct elf_sh_link_hash_table *) bfd_zmalloc (amt);
37c644f2
AO
2262 if (ret == (struct elf_sh_link_hash_table *) NULL)
2263 return NULL;
2264
66eb6687
AM
2265 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
2266 sh_elf_link_hash_newfunc,
4dfe6ac6
NC
2267 sizeof (struct elf_sh_link_hash_entry),
2268 SH_ELF_DATA))
37c644f2 2269 {
e2d34d7d 2270 free (ret);
37c644f2
AO
2271 return NULL;
2272 }
2273
55e6e397 2274 ret->vxworks_p = vxworks_object_p (abfd);
8e45593f 2275 ret->fdpic_p = fdpic_object_p (abfd);
067653c5 2276
37c644f2
AO
2277 return &ret->root.root;
2278}
2279
8e45593f
NC
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
067653c5
AM
2308/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2309 shortcuts to them in our hash table. */
2310
b34976b6 2311static bfd_boolean
09fd220b 2312create_got_section (bfd *dynobj, struct bfd_link_info *info)
067653c5
AM
2313{
2314 struct elf_sh_link_hash_table *htab;
2315
2316 if (! _bfd_elf_create_got_section (dynobj, info))
b34976b6 2317 return FALSE;
067653c5
AM
2318
2319 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2320 if (htab == NULL)
2321 return FALSE;
2322
3d4d4302
AM
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));
8e45593f 2328 if (htab->sfuncdesc == NULL
fd361982 2329 || !bfd_set_section_alignment (htab->sfuncdesc, 2))
8e45593f
NC
2330 return FALSE;
2331
3d4d4302
AM
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));
8e45593f 2339 if (htab->srelfuncdesc == NULL
fd361982 2340 || !bfd_set_section_alignment (htab->srelfuncdesc, 2))
8e45593f
NC
2341 return FALSE;
2342
2343 /* Also create .rofixup. */
3d4d4302
AM
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));
8e45593f 2350 if (htab->srofixup == NULL
fd361982 2351 || !bfd_set_section_alignment (htab->srofixup, 2))
8e45593f
NC
2352 return FALSE;
2353
b34976b6 2354 return TRUE;
067653c5
AM
2355}
2356
37c644f2
AO
2357/* Create dynamic sections when linking against a dynamic object. */
2358
b34976b6 2359static bfd_boolean
09fd220b 2360sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
37c644f2 2361{
067653c5 2362 struct elf_sh_link_hash_table *htab;
37c644f2 2363 flagword flags, pltflags;
91d6fa6a 2364 asection *s;
9c5bfbb7 2365 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
37c644f2
AO
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);
b34976b6 2380 return FALSE;
37c644f2
AO
2381 }
2382
067653c5 2383 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2384 if (htab == NULL)
2385 return FALSE;
2386
35cad4c4
KK
2387 if (htab->root.dynamic_sections_created)
2388 return TRUE;
067653c5 2389
37c644f2
AO
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
3d4d4302 2403 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
ce558b89 2404 htab->root.splt = s;
35cad4c4 2405 if (s == NULL
fd361982 2406 || !bfd_set_section_alignment (s, bed->plt_alignment))
35cad4c4 2407 return FALSE;
37c644f2
AO
2408
2409 if (bed->want_plt_sym)
2410 {
2411 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2412 .plt section. */
14a793b2
AM
2413 struct elf_link_hash_entry *h;
2414 struct bfd_link_hash_entry *bh = NULL;
2415
37c644f2
AO
2416 if (! (_bfd_generic_link_add_one_symbol
2417 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
b34976b6 2418 (bfd_vma) 0, (const char *) NULL, FALSE,
14a793b2 2419 get_elf_backend_data (abfd)->collect, &bh)))
b34976b6 2420 return FALSE;
14a793b2
AM
2421
2422 h = (struct elf_link_hash_entry *) bh;
f5385ebf 2423 h->def_regular = 1;
37c644f2 2424 h->type = STT_OBJECT;
7325306f 2425 htab->root.hplt = h;
37c644f2 2426
0e1862bb 2427 if (bfd_link_pic (info)
c152c796 2428 && ! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2429 return FALSE;
37c644f2
AO
2430 }
2431
3d4d4302
AM
2432 s = bfd_make_section_anyway_with_flags (abfd,
2433 bed->default_use_rela_p
2434 ? ".rela.plt" : ".rel.plt",
2435 flags | SEC_READONLY);
ce558b89 2436 htab->root.srelplt = s;
35cad4c4 2437 if (s == NULL
fd361982 2438 || !bfd_set_section_alignment (s, ptralign))
35cad4c4 2439 return FALSE;
37c644f2 2440
ce558b89 2441 if (htab->root.sgot == NULL
2293c499 2442 && !create_got_section (abfd, info))
b34976b6 2443 return FALSE;
37c644f2 2444
37c644f2
AO
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. */
3d4d4302
AM
2453 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2454 SEC_ALLOC | SEC_LINKER_CREATED);
35cad4c4 2455 htab->sdynbss = s;
3496cb2a 2456 if (s == NULL)
35cad4c4 2457 return FALSE;
37c644f2
AO
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. */
0e1862bb 2470 if (! bfd_link_pic (info))
37c644f2 2471 {
3d4d4302
AM
2472 s = bfd_make_section_anyway_with_flags (abfd,
2473 (bed->default_use_rela_p
2474 ? ".rela.bss" : ".rel.bss"),
2475 flags | SEC_READONLY);
067653c5 2476 htab->srelbss = s;
37c644f2 2477 if (s == NULL
fd361982 2478 || !bfd_set_section_alignment (s, ptralign))
b34976b6 2479 return FALSE;
37c644f2
AO
2480 }
2481 }
2482
55e6e397
RS
2483 if (htab->vxworks_p)
2484 {
2485 if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2486 return FALSE;
2487 }
2488
b34976b6 2489 return TRUE;
37c644f2
AO
2490}
2491\f
63c1f59d
AM
2492/* Find dynamic relocs for H that apply to read-only sections. */
2493
2494static asection *
2495readonly_dynrelocs (struct elf_link_hash_entry *h)
2496{
3bf083ed 2497 struct elf_dyn_relocs *p;
63c1f59d
AM
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
37c644f2
AO
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
b34976b6 2515static bfd_boolean
09fd220b
KK
2516sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2517 struct elf_link_hash_entry *h)
37c644f2 2518{
067653c5 2519 struct elf_sh_link_hash_table *htab;
37c644f2 2520 asection *s;
37c644f2 2521
2293c499 2522 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2523 if (htab == NULL)
2524 return FALSE;
37c644f2
AO
2525
2526 /* Make sure we know what is going on here. */
2293c499 2527 BFD_ASSERT (htab->root.dynobj != NULL
f5385ebf 2528 && (h->needs_plt
60d67dc8 2529 || h->is_weakalias
f5385ebf
AM
2530 || (h->def_dynamic
2531 && h->ref_regular
2532 && !h->def_regular)));
37c644f2
AO
2533
2534 /* If this is a function, put it in the procedure linkage table. We
2535 will fill in the contents of the procedure linkage table later,
2536 when we know the address of the .got section. */
2537 if (h->type == STT_FUNC
f5385ebf 2538 || h->needs_plt)
37c644f2 2539 {
067653c5 2540 if (h->plt.refcount <= 0
3d85aebe
KK
2541 || SYMBOL_CALLS_LOCAL (info, h)
2542 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2543 && h->root.type == bfd_link_hash_undefweak))
37c644f2
AO
2544 {
2545 /* This case can occur if we saw a PLT reloc in an input
2546 file, but the symbol was never referred to by a dynamic
2547 object. In such a case, we don't actually need to build
2548 a procedure linkage table, and we can just do a REL32
2549 reloc instead. */
067653c5 2550 h->plt.offset = (bfd_vma) -1;
f5385ebf 2551 h->needs_plt = 0;
37c644f2
AO
2552 }
2553
b34976b6 2554 return TRUE;
37c644f2 2555 }
067653c5
AM
2556 else
2557 h->plt.offset = (bfd_vma) -1;
37c644f2
AO
2558
2559 /* If this is a weak symbol, and there is a real definition, the
2560 processor independent code will have arranged for us to see the
2561 real definition first, and we can just use the same value. */
60d67dc8 2562 if (h->is_weakalias)
37c644f2 2563 {
60d67dc8
AM
2564 struct elf_link_hash_entry *def = weakdef (h);
2565 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2566 h->root.u.def.section = def->root.u.def.section;
2567 h->root.u.def.value = def->root.u.def.value;
04e534c3 2568 if (info->nocopyreloc)
60d67dc8 2569 h->non_got_ref = def->non_got_ref;
b34976b6 2570 return TRUE;
37c644f2
AO
2571 }
2572
2573 /* This is a reference to a symbol defined by a dynamic object which
2574 is not a function. */
2575
2576 /* If we are creating a shared library, we must presume that the
2577 only references to the symbol are via the global offset table.
2578 For such cases we need not do anything here; the relocations will
2579 be handled correctly by relocate_section. */
0e1862bb 2580 if (bfd_link_pic (info))
b34976b6 2581 return TRUE;
37c644f2
AO
2582
2583 /* If there are no references to this symbol that do not use the
2584 GOT, we don't need to generate a copy reloc. */
f5385ebf 2585 if (!h->non_got_ref)
b34976b6 2586 return TRUE;
37c644f2 2587
067653c5 2588 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 2589 if (0 && info->nocopyreloc)
067653c5 2590 {
f5385ebf 2591 h->non_got_ref = 0;
b34976b6 2592 return TRUE;
067653c5
AM
2593 }
2594
3bf083ed
AM
2595 /* If we don't find any dynamic relocs in read-only sections, then
2596 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2597 if (0 && !readonly_dynrelocs (h))
067653c5 2598 {
f5385ebf 2599 h->non_got_ref = 0;
b34976b6 2600 return TRUE;
067653c5
AM
2601 }
2602
37c644f2
AO
2603 /* We must allocate the symbol in our .dynbss section, which will
2604 become part of the .bss section of the executable. There will be
2605 an entry for this symbol in the .dynsym section. The dynamic
2606 object will contain position independent code, so all references
2607 from the dynamic object to this symbol will go through the global
2608 offset table. The dynamic linker will use the .dynsym entry to
2609 determine the address it must put in the global offset table, so
2610 both the dynamic object and the regular object will refer to the
2611 same memory location for the variable. */
2612
067653c5 2613 s = htab->sdynbss;
37c644f2
AO
2614 BFD_ASSERT (s != NULL);
2615
2616 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2617 copy the initial value out of the dynamic object and into the
2618 runtime process image. We need to remember the offset into the
2619 .rela.bss section we are going to use. */
1d7e9d18 2620 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
37c644f2
AO
2621 {
2622 asection *srel;
2623
067653c5 2624 srel = htab->srelbss;
37c644f2 2625 BFD_ASSERT (srel != NULL);
eea6121a 2626 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 2627 h->needs_copy = 1;
37c644f2
AO
2628 }
2629
6cabe1ea 2630 return _bfd_elf_adjust_dynamic_copy (info, h, s);
37c644f2
AO
2631}
2632
067653c5
AM
2633/* Allocate space in .plt, .got and associated reloc sections for
2634 dynamic relocs. */
2635
b34976b6 2636static bfd_boolean
09fd220b 2637allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
067653c5
AM
2638{
2639 struct bfd_link_info *info;
2640 struct elf_sh_link_hash_table *htab;
2641 struct elf_sh_link_hash_entry *eh;
3bf083ed 2642 struct elf_dyn_relocs *p;
067653c5
AM
2643
2644 if (h->root.type == bfd_link_hash_indirect)
b34976b6 2645 return TRUE;
067653c5 2646
067653c5
AM
2647 info = (struct bfd_link_info *) inf;
2648 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2649 if (htab == NULL)
2650 return FALSE;
067653c5 2651
4989d792
SC
2652 eh = (struct elf_sh_link_hash_entry *) h;
2653 if ((h->got.refcount > 0
f5385ebf 2654 || h->forced_local)
4989d792
SC
2655 && eh->gotplt_refcount > 0)
2656 {
2657 /* The symbol has been forced local, or we have some direct got refs,
26e41594 2658 so treat all the gotplt refs as got refs. */
4989d792
SC
2659 h->got.refcount += eh->gotplt_refcount;
2660 if (h->plt.refcount >= eh->gotplt_refcount)
2661 h->plt.refcount -= eh->gotplt_refcount;
2662 }
2663
067653c5 2664 if (htab->root.dynamic_sections_created
04e534c3
KK
2665 && h->plt.refcount > 0
2666 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2667 || h->root.type != bfd_link_hash_undefweak))
067653c5
AM
2668 {
2669 /* Make sure this symbol is output as a dynamic symbol.
2670 Undefined weak syms won't yet be marked as dynamic. */
2671 if (h->dynindx == -1
f5385ebf 2672 && !h->forced_local)
067653c5 2673 {
c152c796 2674 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2675 return FALSE;
067653c5
AM
2676 }
2677
0e1862bb 2678 if (bfd_link_pic (info)
267fb3c1 2679 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
067653c5 2680 {
ce558b89 2681 asection *s = htab->root.splt;
8e45593f 2682 const struct elf_sh_plt_info *plt_info;
067653c5
AM
2683
2684 /* If this is the first .plt entry, make room for the special
2685 first entry. */
eea6121a 2686 if (s->size == 0)
55e6e397 2687 s->size += htab->plt_info->plt0_entry_size;
067653c5 2688
eea6121a 2689 h->plt.offset = s->size;
067653c5
AM
2690
2691 /* If this symbol is not defined in a regular file, and we are
2692 not generating a shared library, then set the symbol to this
2693 location in the .plt. This is required to make function
2694 pointers compare as equal between the normal executable and
8e45593f
NC
2695 the shared library. Skip this for FDPIC, since the
2696 function's address will be the address of the canonical
2697 function descriptor. */
0e1862bb 2698 if (!htab->fdpic_p && !bfd_link_pic (info) && !h->def_regular)
067653c5
AM
2699 {
2700 h->root.u.def.section = s;
2701 h->root.u.def.value = h->plt.offset;
2702 }
2703
2704 /* Make room for this entry. */
8e45593f
NC
2705 plt_info = htab->plt_info;
2706 if (plt_info->short_plt != NULL
2707 && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT))
2708 plt_info = plt_info->short_plt;
2709 s->size += plt_info->symbol_entry_size;
067653c5
AM
2710
2711 /* We also need to make an entry in the .got.plt section, which
2712 will be placed in the .got section by the linker script. */
8e45593f 2713 if (!htab->fdpic_p)
ce558b89 2714 htab->root.sgotplt->size += 4;
8e45593f 2715 else
ce558b89 2716 htab->root.sgotplt->size += 8;
067653c5
AM
2717
2718 /* We also need to make an entry in the .rel.plt section. */
ce558b89 2719 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
55e6e397 2720
0e1862bb 2721 if (htab->vxworks_p && !bfd_link_pic (info))
55e6e397
RS
2722 {
2723 /* VxWorks executables have a second set of relocations
2724 for each PLT entry. They go in a separate relocation
2725 section, which is processed by the kernel loader. */
2726
2727 /* There is a relocation for the initial PLT entry:
2728 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
2729 if (h->plt.offset == htab->plt_info->plt0_entry_size)
2730 htab->srelplt2->size += sizeof (Elf32_External_Rela);
2731
2732 /* There are two extra relocations for each subsequent
2733 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
2734 and an R_SH_DIR32 relocation for the PLT entry. */
2735 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2;
2736 }
067653c5
AM
2737 }
2738 else
2739 {
2740 h->plt.offset = (bfd_vma) -1;
f5385ebf 2741 h->needs_plt = 0;
067653c5
AM
2742 }
2743 }
2744 else
2745 {
2746 h->plt.offset = (bfd_vma) -1;
f5385ebf 2747 h->needs_plt = 0;
067653c5
AM
2748 }
2749
2750 if (h->got.refcount > 0)
2751 {
2752 asection *s;
b34976b6 2753 bfd_boolean dyn;
85e02784 2754 enum got_type got_type = sh_elf_hash_entry (h)->got_type;
067653c5
AM
2755
2756 /* Make sure this symbol is output as a dynamic symbol.
2757 Undefined weak syms won't yet be marked as dynamic. */
2758 if (h->dynindx == -1
f5385ebf 2759 && !h->forced_local)
067653c5 2760 {
c152c796 2761 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2762 return FALSE;
067653c5
AM
2763 }
2764
ce558b89 2765 s = htab->root.sgot;
eea6121a
AM
2766 h->got.offset = s->size;
2767 s->size += 4;
3376eaf5 2768 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
8e45593f 2769 if (got_type == GOT_TLS_GD)
eea6121a 2770 s->size += 4;
067653c5 2771 dyn = htab->root.dynamic_sections_created;
8e45593f
NC
2772 if (!dyn)
2773 {
2774 /* No dynamic relocations required. */
0e1862bb 2775 if (htab->fdpic_p && !bfd_link_pic (info)
8e45593f
NC
2776 && h->root.type != bfd_link_hash_undefweak
2777 && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC))
2778 htab->srofixup->size += 4;
2779 }
87458ed2 2780 /* No dynamic relocations required when IE->LE conversion happens. */
0e1862bb
L
2781 else if (got_type == GOT_TLS_IE
2782 && !h->def_dynamic
2783 && !bfd_link_pic (info))
87458ed2 2784 ;
267fb3c1 2785 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
3376eaf5 2786 R_SH_TLS_GD needs one if local symbol and two if global. */
8e45593f
NC
2787 else if ((got_type == GOT_TLS_GD && h->dynindx == -1)
2788 || got_type == GOT_TLS_IE)
ce558b89 2789 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f 2790 else if (got_type == GOT_TLS_GD)
ce558b89 2791 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
8e45593f
NC
2792 else if (got_type == GOT_FUNCDESC)
2793 {
0e1862bb 2794 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
2795 htab->srofixup->size += 4;
2796 else
ce558b89 2797 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f 2798 }
04e534c3
KK
2799 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2800 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 2801 && (bfd_link_pic (info)
04e534c3 2802 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
ce558b89 2803 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
0e1862bb
L
2804 else if (htab->fdpic_p
2805 && !bfd_link_pic (info)
2806 && got_type == GOT_NORMAL
8e45593f
NC
2807 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2808 || h->root.type != bfd_link_hash_undefweak))
2809 htab->srofixup->size += 4;
067653c5
AM
2810 }
2811 else
2812 h->got.offset = (bfd_vma) -1;
2813
8e45593f
NC
2814 /* Allocate space for any dynamic relocations to function
2815 descriptors, canonical or otherwise. We need to relocate the
2816 reference unless it resolves to zero, which only happens for
2817 undefined weak symbols (either non-default visibility, or when
2818 static linking). Any GOT slot is accounted for elsewhere. */
2819 if (eh->abs_funcdesc_refcount > 0
2820 && (h->root.type != bfd_link_hash_undefweak
2821 || (htab->root.dynamic_sections_created
2822 && ! SYMBOL_CALLS_LOCAL (info, h))))
2823 {
0e1862bb 2824 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
2825 htab->srofixup->size += eh->abs_funcdesc_refcount * 4;
2826 else
ce558b89 2827 htab->root.srelgot->size
8e45593f
NC
2828 += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela);
2829 }
2830
2831 /* We must allocate a function descriptor if there are references to
2832 a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
2833 the dynamic linker isn't going to allocate it. None of this
2834 applies if we already created one in .got.plt, but if the
2835 canonical function descriptor can be in this object, there
2836 won't be a PLT entry at all. */
2837 if ((eh->funcdesc.refcount > 0
2838 || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC))
2839 && h->root.type != bfd_link_hash_undefweak
2840 && SYMBOL_FUNCDESC_LOCAL (info, h))
2841 {
2842 /* Make room for this function descriptor. */
2843 eh->funcdesc.offset = htab->sfuncdesc->size;
2844 htab->sfuncdesc->size += 8;
2845
2846 /* We will need a relocation or two fixups to initialize the
2847 function descriptor, so allocate those too. */
0e1862bb 2848 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
8e45593f
NC
2849 htab->srofixup->size += 8;
2850 else
2851 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
2852 }
2853
067653c5 2854 if (eh->dyn_relocs == NULL)
b34976b6 2855 return TRUE;
067653c5
AM
2856
2857 /* In the shared -Bsymbolic case, discard space allocated for
2858 dynamic pc-relative relocs against symbols which turn out to be
2859 defined in regular objects. For the normal shared case, discard
2860 space for pc-relative relocs that have become local due to symbol
2861 visibility changes. */
2862
0e1862bb 2863 if (bfd_link_pic (info))
067653c5 2864 {
3d85aebe 2865 if (SYMBOL_CALLS_LOCAL (info, h))
067653c5 2866 {
3bf083ed 2867 struct elf_dyn_relocs **pp;
067653c5
AM
2868
2869 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2870 {
2871 p->count -= p->pc_count;
2872 p->pc_count = 0;
2873 if (p->count == 0)
2874 *pp = p->next;
2875 else
2876 pp = &p->next;
2877 }
2878 }
04e534c3 2879
3348747a
NS
2880 if (htab->vxworks_p)
2881 {
3bf083ed 2882 struct elf_dyn_relocs **pp;
3348747a
NS
2883
2884 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2885 {
2886 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2887 *pp = p->next;
2888 else
2889 pp = &p->next;
2890 }
2891 }
2892
04e534c3
KK
2893 /* Also discard relocs on undefined weak syms with non-default
2894 visibility. */
22d606e9 2895 if (eh->dyn_relocs != NULL
04e534c3 2896 && h->root.type == bfd_link_hash_undefweak)
22d606e9 2897 {
6ee6e05a
L
2898 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2899 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
22d606e9
AM
2900 eh->dyn_relocs = NULL;
2901
2902 /* Make sure undefined weak symbols are output as a dynamic
2903 symbol in PIEs. */
2904 else if (h->dynindx == -1
2905 && !h->forced_local)
2906 {
2907 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2908 return FALSE;
2909 }
2910 }
067653c5
AM
2911 }
2912 else
2913 {
2914 /* For the non-shared case, discard space for relocs against
2915 symbols which turn out to need copy relocs or are not
2916 dynamic. */
2917
f5385ebf
AM
2918 if (!h->non_got_ref
2919 && ((h->def_dynamic
2920 && !h->def_regular)
067653c5
AM
2921 || (htab->root.dynamic_sections_created
2922 && (h->root.type == bfd_link_hash_undefweak
2923 || h->root.type == bfd_link_hash_undefined))))
2924 {
2925 /* Make sure this symbol is output as a dynamic symbol.
2926 Undefined weak syms won't yet be marked as dynamic. */
2927 if (h->dynindx == -1
f5385ebf 2928 && !h->forced_local)
067653c5 2929 {
c152c796 2930 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2931 return FALSE;
067653c5
AM
2932 }
2933
2934 /* If that succeeded, we know we'll be keeping all the
2935 relocs. */
2936 if (h->dynindx != -1)
2937 goto keep;
2938 }
2939
2940 eh->dyn_relocs = NULL;
2941
2942 keep: ;
2943 }
2944
2945 /* Finally, allocate space. */
2946 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2947 {
2948 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2949 sreloc->size += p->count * sizeof (Elf32_External_Rela);
8e45593f
NC
2950
2951 /* If we need relocations, we do not need fixups. */
0e1862bb 2952 if (htab->fdpic_p && !bfd_link_pic (info))
8e45593f 2953 htab->srofixup->size -= 4 * (p->count - p->pc_count);
067653c5
AM
2954 }
2955
b34976b6 2956 return TRUE;
067653c5
AM
2957}
2958
63c1f59d
AM
2959/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2960 read-only sections. */
067653c5 2961
b34976b6 2962static bfd_boolean
63c1f59d 2963maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
067653c5 2964{
63c1f59d 2965 asection *sec;
067653c5 2966
63c1f59d
AM
2967 if (h->root.type == bfd_link_hash_indirect)
2968 return TRUE;
067653c5 2969
63c1f59d
AM
2970 sec = readonly_dynrelocs (h);
2971 if (sec != NULL)
2972 {
2973 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
067653c5 2974
63c1f59d
AM
2975 info->flags |= DF_TEXTREL;
2976 info->callbacks->minfo
c1c8c1ef 2977 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 2978 sec->owner, h->root.root.string, sec);
a72f95f7 2979
63c1f59d
AM
2980 /* Not an error, just cut short the traversal. */
2981 return FALSE;
067653c5 2982 }
b34976b6 2983 return TRUE;
067653c5
AM
2984}
2985
55e6e397
RS
2986/* This function is called after all the input files have been read,
2987 and the input sections have been assigned to output sections.
2988 It's a convenient place to determine the PLT style. */
2989
2990static bfd_boolean
2991sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2992{
0e1862bb
L
2993 sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd,
2994 bfd_link_pic (info));
8e45593f 2995
0e1862bb 2996 if (sh_elf_hash_table (info)->fdpic_p && !bfd_link_relocatable (info)
04c3a755
NS
2997 && !bfd_elf_stack_segment_size (output_bfd, info,
2998 "__stacksize", DEFAULT_STACK_SIZE))
2999 return FALSE;
55e6e397
RS
3000 return TRUE;
3001}
3002
37c644f2
AO
3003/* Set the sizes of the dynamic sections. */
3004
b34976b6 3005static bfd_boolean
09fd220b
KK
3006sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3007 struct bfd_link_info *info)
37c644f2 3008{
067653c5 3009 struct elf_sh_link_hash_table *htab;
37c644f2
AO
3010 bfd *dynobj;
3011 asection *s;
b34976b6 3012 bfd_boolean relocs;
067653c5 3013 bfd *ibfd;
37c644f2 3014
067653c5 3015 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
3016 if (htab == NULL)
3017 return FALSE;
3018
067653c5 3019 dynobj = htab->root.dynobj;
37c644f2
AO
3020 BFD_ASSERT (dynobj != NULL);
3021
067653c5 3022 if (htab->root.dynamic_sections_created)
37c644f2
AO
3023 {
3024 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 3025 if (bfd_link_executable (info) && !info->nointerp)
37c644f2 3026 {
3d4d4302 3027 s = bfd_get_linker_section (dynobj, ".interp");
37c644f2 3028 BFD_ASSERT (s != NULL);
eea6121a 3029 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
37c644f2
AO
3030 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3031 }
3032 }
37c644f2 3033
067653c5
AM
3034 /* Set up .got offsets for local syms, and space for local dynamic
3035 relocs. */
c72f2fb2 3036 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
37c644f2 3037 {
067653c5
AM
3038 bfd_signed_vma *local_got;
3039 bfd_signed_vma *end_local_got;
8e45593f
NC
3040 union gotref *local_funcdesc, *end_local_funcdesc;
3041 char *local_got_type;
067653c5
AM
3042 bfd_size_type locsymcount;
3043 Elf_Internal_Shdr *symtab_hdr;
3044 asection *srel;
37c644f2 3045
0ffa91dd 3046 if (! is_sh_elf (ibfd))
37c644f2
AO
3047 continue;
3048
067653c5 3049 for (s = ibfd->sections; s != NULL; s = s->next)
37c644f2 3050 {
3bf083ed 3051 struct elf_dyn_relocs *p;
067653c5 3052
3bf083ed 3053 for (p = ((struct elf_dyn_relocs *)
067653c5
AM
3054 elf_section_data (s)->local_dynrel);
3055 p != NULL;
3056 p = p->next)
37c644f2 3057 {
067653c5
AM
3058 if (! bfd_is_abs_section (p->sec)
3059 && bfd_is_abs_section (p->sec->output_section))
3060 {
3061 /* Input section has been discarded, either because
3062 it is a copy of a linkonce section or due to
3063 linker script /DISCARD/, so we'll be discarding
3064 the relocs too. */
3065 }
3348747a
NS
3066 else if (htab->vxworks_p
3067 && strcmp (p->sec->output_section->name,
3068 ".tls_vars") == 0)
3069 {
3070 /* Relocations in vxworks .tls_vars sections are
3071 handled specially by the loader. */
3072 }
067653c5
AM
3073 else if (p->count != 0)
3074 {
3075 srel = elf_section_data (p->sec)->sreloc;
eea6121a 3076 srel->size += p->count * sizeof (Elf32_External_Rela);
067653c5 3077 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
a72f95f7
L
3078 {
3079 info->flags |= DF_TEXTREL;
871b3ab2 3080 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
a72f95f7
L
3081 p->sec->owner, p->sec);
3082 }
8e45593f
NC
3083
3084 /* If we need relocations, we do not need fixups. */
0e1862bb 3085 if (htab->fdpic_p && !bfd_link_pic (info))
8e45593f 3086 htab->srofixup->size -= 4 * (p->count - p->pc_count);
067653c5 3087 }
37c644f2
AO
3088 }
3089 }
067653c5 3090
0ffa91dd 3091 symtab_hdr = &elf_symtab_hdr (ibfd);
067653c5 3092 locsymcount = symtab_hdr->sh_info;
ce558b89
AM
3093 s = htab->root.sgot;
3094 srel = htab->root.srelgot;
8e45593f
NC
3095
3096 local_got = elf_local_got_refcounts (ibfd);
3097 if (local_got)
37c644f2 3098 {
8e45593f
NC
3099 end_local_got = local_got + locsymcount;
3100 local_got_type = sh_elf_local_got_type (ibfd);
3101 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3102 for (; local_got < end_local_got; ++local_got)
37c644f2 3103 {
8e45593f
NC
3104 if (*local_got > 0)
3105 {
3106 *local_got = s->size;
3107 s->size += 4;
3108 if (*local_got_type == GOT_TLS_GD)
3109 s->size += 4;
0e1862bb 3110 if (bfd_link_pic (info))
8e45593f
NC
3111 srel->size += sizeof (Elf32_External_Rela);
3112 else
3113 htab->srofixup->size += 4;
3114
3115 if (*local_got_type == GOT_FUNCDESC)
3116 {
3117 if (local_funcdesc == NULL)
3118 {
3119 bfd_size_type size;
3120
3121 size = locsymcount * sizeof (union gotref);
3122 local_funcdesc = (union gotref *) bfd_zalloc (ibfd,
3123 size);
3124 if (local_funcdesc == NULL)
3125 return FALSE;
3126 sh_elf_local_funcdesc (ibfd) = local_funcdesc;
3127 local_funcdesc += (local_got
3128 - elf_local_got_refcounts (ibfd));
3129 }
3130 local_funcdesc->refcount++;
3131 ++local_funcdesc;
3132 }
3133 }
3134 else
3135 *local_got = (bfd_vma) -1;
3136 ++local_got_type;
3137 }
3138 }
3139
3140 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3141 if (local_funcdesc)
3142 {
3143 end_local_funcdesc = local_funcdesc + locsymcount;
3144
3145 for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc)
3146 {
3147 if (local_funcdesc->refcount > 0)
3148 {
3149 local_funcdesc->offset = htab->sfuncdesc->size;
3150 htab->sfuncdesc->size += 8;
0e1862bb 3151 if (!bfd_link_pic (info))
8e45593f
NC
3152 htab->srofixup->size += 8;
3153 else
3154 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
3155 }
3156 else
3157 local_funcdesc->offset = MINUS_ONE;
37c644f2 3158 }
37c644f2 3159 }
8e45593f 3160
067653c5
AM
3161 }
3162
3376eaf5
KK
3163 if (htab->tls_ldm_got.refcount > 0)
3164 {
3165 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3166 relocs. */
ce558b89
AM
3167 htab->tls_ldm_got.offset = htab->root.sgot->size;
3168 htab->root.sgot->size += 8;
3169 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
3376eaf5
KK
3170 }
3171 else
3172 htab->tls_ldm_got.offset = -1;
3173
8e45593f
NC
3174 /* Only the reserved entries should be present. For FDPIC, they go at
3175 the end of .got.plt. */
3176 if (htab->fdpic_p)
3177 {
ce558b89
AM
3178 BFD_ASSERT (htab->root.sgotplt && htab->root.sgotplt->size == 12);
3179 htab->root.sgotplt->size = 0;
8e45593f
NC
3180 }
3181
067653c5
AM
3182 /* Allocate global sym .plt and .got entries, and space for global
3183 sym dynamic relocs. */
09fd220b 3184 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
067653c5 3185
8e45593f
NC
3186 /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3187 end of the FDPIC .got.plt. */
3188 if (htab->fdpic_p)
3189 {
ce558b89
AM
3190 htab->root.hgot->root.u.def.value = htab->root.sgotplt->size;
3191 htab->root.sgotplt->size += 12;
8e45593f
NC
3192 }
3193
3194 /* At the very end of the .rofixup section is a pointer to the GOT. */
3195 if (htab->fdpic_p && htab->srofixup != NULL)
3196 htab->srofixup->size += 4;
3197
067653c5
AM
3198 /* We now have determined the sizes of the various dynamic sections.
3199 Allocate memory for them. */
b34976b6 3200 relocs = FALSE;
067653c5
AM
3201 for (s = dynobj->sections; s != NULL; s = s->next)
3202 {
3203 if ((s->flags & SEC_LINKER_CREATED) == 0)
3204 continue;
3205
ce558b89
AM
3206 if (s == htab->root.splt
3207 || s == htab->root.sgot
3208 || s == htab->root.sgotplt
8e45593f
NC
3209 || s == htab->sfuncdesc
3210 || s == htab->srofixup
c456f082 3211 || s == htab->sdynbss)
067653c5
AM
3212 {
3213 /* Strip this section if we don't need it; see the
3214 comment below. */
3215 }
fd361982 3216 else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
067653c5 3217 {
ce558b89 3218 if (s->size != 0 && s != htab->root.srelplt && s != htab->srelplt2)
b34976b6 3219 relocs = TRUE;
067653c5
AM
3220
3221 /* We use the reloc_count field as a counter if we need
3222 to copy relocs into the output file. */
3223 s->reloc_count = 0;
3224 }
3225 else
37c644f2
AO
3226 {
3227 /* It's not one of our sections, so don't allocate space. */
3228 continue;
3229 }
3230
eea6121a 3231 if (s->size == 0)
37c644f2 3232 {
067653c5
AM
3233 /* If we don't need this section, strip it from the
3234 output file. This is mostly to handle .rela.bss and
3235 .rela.plt. We must create both sections in
3236 create_dynamic_sections, because they must be created
3237 before the linker maps input sections to output
3238 sections. The linker does that before
3239 adjust_dynamic_symbol is called, and it is that
3240 function which decides whether anything needs to go
3241 into these sections. */
3242
8423293d 3243 s->flags |= SEC_EXCLUDE;
37c644f2
AO
3244 continue;
3245 }
3246
c456f082
AM
3247 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3248 continue;
3249
067653c5
AM
3250 /* Allocate memory for the section contents. We use bfd_zalloc
3251 here in case unused entries are not reclaimed before the
3252 section's contents are written out. This should not happen,
3253 but this way if it does, we get a R_SH_NONE reloc instead
3254 of garbage. */
eea6121a 3255 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
067653c5 3256 if (s->contents == NULL)
b34976b6 3257 return FALSE;
37c644f2
AO
3258 }
3259
067653c5 3260 if (htab->root.dynamic_sections_created)
37c644f2
AO
3261 {
3262 /* Add some entries to the .dynamic section. We fill in the
3263 values later, in sh_elf_finish_dynamic_sections, but we
3264 must add the entries now so that we get the correct size for
3265 the .dynamic section. The DT_DEBUG entry is filled in by the
3266 dynamic linker and used by the debugger. */
dc810e39 3267#define add_dynamic_entry(TAG, VAL) \
5a580b3a 3268 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 3269
0e1862bb 3270 if (bfd_link_executable (info))
37c644f2 3271 {
067653c5 3272 if (! add_dynamic_entry (DT_DEBUG, 0))
b34976b6 3273 return FALSE;
37c644f2
AO
3274 }
3275
ce558b89 3276 if (htab->root.splt->size != 0)
37c644f2 3277 {
067653c5
AM
3278 if (! add_dynamic_entry (DT_PLTGOT, 0)
3279 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
3280 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
3281 || ! add_dynamic_entry (DT_JMPREL, 0))
b34976b6 3282 return FALSE;
37c644f2 3283 }
b4b0e149 3284 else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC))
8e45593f
NC
3285 {
3286 if (! add_dynamic_entry (DT_PLTGOT, 0))
3287 return FALSE;
3288 }
37c644f2
AO
3289
3290 if (relocs)
3291 {
067653c5
AM
3292 if (! add_dynamic_entry (DT_RELA, 0)
3293 || ! add_dynamic_entry (DT_RELASZ, 0)
3294 || ! add_dynamic_entry (DT_RELAENT,
3295 sizeof (Elf32_External_Rela)))
b34976b6 3296 return FALSE;
37c644f2 3297
067653c5
AM
3298 /* If any dynamic relocs apply to a read-only section,
3299 then we need a DT_TEXTREL entry. */
3300 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 3301 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
067653c5
AM
3302
3303 if ((info->flags & DF_TEXTREL) != 0)
3304 {
3305 if (! add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 3306 return FALSE;
067653c5 3307 }
37c644f2 3308 }
7a2b07ff
NS
3309 if (htab->vxworks_p
3310 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
3311 return FALSE;
37c644f2 3312 }
dc810e39 3313#undef add_dynamic_entry
37c644f2 3314
b34976b6 3315 return TRUE;
37c644f2 3316}
37c644f2 3317\f
8e45593f 3318/* Add a dynamic relocation to the SRELOC section. */
37c644f2 3319
8e45593f
NC
3320inline static bfd_vma
3321sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
3322 int reloc_type, long dynindx, bfd_vma addend)
37c644f2 3323{
8e45593f
NC
3324 Elf_Internal_Rela outrel;
3325 bfd_vma reloc_offset;
37c644f2 3326
8e45593f
NC
3327 outrel.r_offset = offset;
3328 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
3329 outrel.r_addend = addend;
0ffa91dd 3330
8e45593f
NC
3331 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela);
3332 BFD_ASSERT (reloc_offset < sreloc->size);
3333 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
3334 sreloc->contents + reloc_offset);
3335 sreloc->reloc_count++;
37c644f2 3336
8e45593f
NC
3337 return reloc_offset;
3338}
37c644f2 3339
8e45593f 3340/* Add an FDPIC read-only fixup. */
37c644f2 3341
8e45593f
NC
3342inline static void
3343sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset)
3344{
3345 bfd_vma fixup_offset;
3346
3347 fixup_offset = srofixup->reloc_count++ * 4;
3348 BFD_ASSERT (fixup_offset < srofixup->size);
3349 bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset);
3350}
3351
3352/* Return the offset of the generated .got section from the
3353 _GLOBAL_OFFSET_TABLE_ symbol. */
3354
3355static bfd_signed_vma
3356sh_elf_got_offset (struct elf_sh_link_hash_table *htab)
3357{
ce558b89 3358 return (htab->root.sgot->output_offset - htab->root.sgotplt->output_offset
8e45593f
NC
3359 - htab->root.hgot->root.u.def.value);
3360}
3361
3362/* Find the segment number in which OSEC, and output section, is
3363 located. */
3364
3365static unsigned
3366sh_elf_osec_to_segment (bfd *output_bfd, asection *osec)
3367{
3d301fdc
AM
3368 Elf_Internal_Phdr *p = NULL;
3369
5bc8cb6f
NC
3370 if (output_bfd->xvec->flavour == bfd_target_elf_flavour
3371 /* PR ld/17110: Do not look for output segments in an input bfd. */
3372 && output_bfd->direction != read_direction)
3d301fdc 3373 p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
8e45593f
NC
3374
3375 /* FIXME: Nothing ever says what this index is relative to. The kernel
3376 supplies data in terms of the number of load segments but this is
3377 a phdr index and the first phdr may not be a load segment. */
3378 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
3379}
3380
3381static bfd_boolean
3382sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec)
3383{
3384 unsigned seg = sh_elf_osec_to_segment (output_bfd, osec);
3385
3d301fdc
AM
3386 return (seg != (unsigned) -1
3387 && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W));
8e45593f
NC
3388}
3389
3390/* Generate the initial contents of a local function descriptor, along
3391 with any relocations or fixups required. */
3392static bfd_boolean
3393sh_elf_initialize_funcdesc (bfd *output_bfd,
3394 struct bfd_link_info *info,
3395 struct elf_link_hash_entry *h,
3396 bfd_vma offset,
3397 asection *section,
3398 bfd_vma value)
3399{
3400 struct elf_sh_link_hash_table *htab;
3401 int dynindx;
3402 bfd_vma addr, seg;
3403
3404 htab = sh_elf_hash_table (info);
3405
3406 /* FIXME: The ABI says that the offset to the function goes in the
3407 descriptor, along with the segment index. We're RELA, so it could
3408 go in the reloc instead... */
3409
3410 if (h != NULL && SYMBOL_CALLS_LOCAL (info, h))
3411 {
3412 section = h->root.u.def.section;
3413 value = h->root.u.def.value;
3414 }
3415
3416 if (h == NULL || SYMBOL_CALLS_LOCAL (info, h))
3417 {
3418 dynindx = elf_section_data (section->output_section)->dynindx;
3419 addr = value + section->output_offset;
3420 seg = sh_elf_osec_to_segment (output_bfd, section->output_section);
3421 }
3422 else
3423 {
3424 BFD_ASSERT (h->dynindx != -1);
3425 dynindx = h->dynindx;
3426 addr = seg = 0;
3427 }
3428
0e1862bb 3429 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
8e45593f
NC
3430 {
3431 if (h == NULL || h->root.type != bfd_link_hash_undefweak)
3432 {
3433 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3434 offset
3435 + htab->sfuncdesc->output_section->vma
3436 + htab->sfuncdesc->output_offset);
3437 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3438 offset + 4
3439 + htab->sfuncdesc->output_section->vma
3440 + htab->sfuncdesc->output_offset);
3441 }
3442
3443 /* There are no dynamic relocations so fill in the final
3444 address and gp value (barring fixups). */
3445 addr += section->output_section->vma;
3446 seg = htab->root.hgot->root.u.def.value
3447 + htab->root.hgot->root.u.def.section->output_section->vma
3448 + htab->root.hgot->root.u.def.section->output_offset;
3449 }
3450 else
3451 sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc,
3452 offset
3453 + htab->sfuncdesc->output_section->vma
3454 + htab->sfuncdesc->output_offset,
3455 R_SH_FUNCDESC_VALUE, dynindx, 0);
3456
3457 bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset);
3458 bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4);
3459
3460 return TRUE;
3461}
3462
3463/* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3464 VALUE is the field's value. Return bfd_reloc_ok if successful or an error
3465 otherwise. */
3466
3467static bfd_reloc_status_type
3468install_movi20_field (bfd *output_bfd, unsigned long relocation,
3469 bfd *input_bfd, asection *input_section,
3470 bfd_byte *contents, bfd_vma offset)
3471{
3472 unsigned long cur_val;
3473 bfd_byte *addr;
3474 bfd_reloc_status_type r;
3475
3476 if (offset > bfd_get_section_limit (input_bfd, input_section))
3477 return bfd_reloc_outofrange;
3478
3479 r = bfd_check_overflow (complain_overflow_signed, 20, 0,
3480 bfd_arch_bits_per_address (input_bfd), relocation);
3481 if (r != bfd_reloc_ok)
3482 return r;
3483
3484 addr = contents + offset;
3485 cur_val = bfd_get_16 (output_bfd, addr);
3486 bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr);
3487 bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2);
3488
3489 return bfd_reloc_ok;
3490}
3491
3492/* Relocate an SH ELF section. */
3493
3494static bfd_boolean
3495sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3496 bfd *input_bfd, asection *input_section,
3497 bfd_byte *contents, Elf_Internal_Rela *relocs,
3498 Elf_Internal_Sym *local_syms,
3499 asection **local_sections)
3500{
3501 struct elf_sh_link_hash_table *htab;
3502 Elf_Internal_Shdr *symtab_hdr;
3503 struct elf_link_hash_entry **sym_hashes;
3504 Elf_Internal_Rela *rel, *relend;
8e45593f 3505 bfd_vma *local_got_offsets;
e0af1f53
MR
3506 asection *sgot = NULL;
3507 asection *sgotplt = NULL;
3508 asection *splt = NULL;
3509 asection *sreloc = NULL;
3510 asection *srelgot = NULL;
8e45593f
NC
3511 bfd_boolean is_vxworks_tls;
3512 unsigned isec_segment, got_segment, plt_segment, check_segment[2];
e0af1f53 3513 bfd_boolean fdpic_p = FALSE;
8e45593f 3514
7af5d5c4
AM
3515 if (!is_sh_elf (input_bfd))
3516 {
3517 bfd_set_error (bfd_error_wrong_format);
3518 return FALSE;
3519 }
8e45593f
NC
3520
3521 htab = sh_elf_hash_table (info);
e0af1f53
MR
3522 if (htab != NULL)
3523 {
ce558b89
AM
3524 sgot = htab->root.sgot;
3525 sgotplt = htab->root.sgotplt;
3526 srelgot = htab->root.srelgot;
3527 splt = htab->root.splt;
e0af1f53
MR
3528 fdpic_p = htab->fdpic_p;
3529 }
8e45593f
NC
3530 symtab_hdr = &elf_symtab_hdr (input_bfd);
3531 sym_hashes = elf_sym_hashes (input_bfd);
8e45593f
NC
3532 local_got_offsets = elf_local_got_offsets (input_bfd);
3533
3534 isec_segment = sh_elf_osec_to_segment (output_bfd,
3535 input_section->output_section);
e0af1f53 3536 if (fdpic_p && sgot)
8e45593f 3537 got_segment = sh_elf_osec_to_segment (output_bfd,
e0af1f53 3538 sgot->output_section);
8e45593f
NC
3539 else
3540 got_segment = -1;
e0af1f53 3541 if (fdpic_p && splt)
8e45593f 3542 plt_segment = sh_elf_osec_to_segment (output_bfd,
e0af1f53 3543 splt->output_section);
8e45593f
NC
3544 else
3545 plt_segment = -1;
3546
8e45593f
NC
3547 /* We have to handle relocations in vxworks .tls_vars sections
3548 specially, because the dynamic loader is 'weird'. */
0e1862bb 3549 is_vxworks_tls = (htab && htab->vxworks_p && bfd_link_pic (info)
8e45593f
NC
3550 && !strcmp (input_section->output_section->name,
3551 ".tls_vars"));
3552
3553 rel = relocs;
3554 relend = relocs + input_section->reloc_count;
3555 for (; rel < relend; rel++)
3556 {
3557 int r_type;
3558 reloc_howto_type *howto;
3559 unsigned long r_symndx;
3560 Elf_Internal_Sym *sym;
3561 asection *sec;
3562 struct elf_link_hash_entry *h;
3563 bfd_vma relocation;
3564 bfd_vma addend = (bfd_vma) 0;
3565 bfd_reloc_status_type r;
3566 int seen_stt_datalabel = 0;
3567 bfd_vma off;
85e02784 3568 enum got_type got_type;
8e45593f 3569 const char *symname = NULL;
6ee6e05a 3570 bfd_boolean resolved_to_zero;
8e45593f
NC
3571
3572 r_symndx = ELF32_R_SYM (rel->r_info);
37c644f2 3573
37c644f2
AO
3574 r_type = ELF32_R_TYPE (rel->r_info);
3575
3576 /* Many of the relocs are only used for relaxing, and are
067653c5 3577 handled entirely by the relaxation code. */
d38eb334
DD
3578 if (r_type >= (int) R_SH_GNU_VTINHERIT
3579 && r_type <= (int) R_SH_LABEL)
37c644f2 3580 continue;
c5aeb40f
AO
3581 if (r_type == (int) R_SH_NONE)
3582 continue;
37c644f2
AO
3583
3584 if (r_type < 0
3585 || r_type >= R_SH_max
3586 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
06bb75c1 3587 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
8e45593f
NC
3588 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
3589 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
fbca6ad9
AO
3590 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
3591 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
3592 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
3593 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
3376eaf5
KK
3594 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
3595 && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
8e45593f
NC
3596 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6
3597 && r_type <= (int) R_SH_LAST_INVALID_RELOC_6))
37c644f2
AO
3598 {
3599 bfd_set_error (bfd_error_bad_value);
b34976b6 3600 return FALSE;
37c644f2
AO
3601 }
3602
55e6e397 3603 howto = get_howto_table (output_bfd) + r_type;
37c644f2 3604
146be91a 3605 /* For relocs that aren't partial_inplace, we get the addend from
067653c5 3606 the relocation. */
146be91a
HPN
3607 if (! howto->partial_inplace)
3608 addend = rel->r_addend;
3609
6ee6e05a 3610 resolved_to_zero = FALSE;
37c644f2
AO
3611 h = NULL;
3612 sym = NULL;
3613 sec = NULL;
8e45593f
NC
3614 check_segment[0] = -1;
3615 check_segment[1] = -1;
37c644f2
AO
3616 if (r_symndx < symtab_hdr->sh_info)
3617 {
3618 sym = local_syms + r_symndx;
3619 sec = local_sections[r_symndx];
8e45593f
NC
3620
3621 symname = bfd_elf_string_from_elf_section
3622 (input_bfd, symtab_hdr->sh_link, sym->st_name);
3623 if (symname == NULL || *symname == '\0')
fd361982 3624 symname = bfd_section_name (sec);
8e45593f 3625
37c644f2
AO
3626 relocation = (sec->output_section->vma
3627 + sec->output_offset
3628 + sym->st_value);
fbca6ad9
AO
3629 /* A local symbol never has STO_SH5_ISA32, so we don't need
3630 datalabel processing here. Make sure this does not change
3631 without notice. */
3632 if ((sym->st_other & STO_SH5_ISA32) != 0)
1a72702b
AM
3633 (*info->callbacks->reloc_dangerous)
3634 (info,
38f14ab8 3635 _("unexpected STO_SH5_ISA32 on local symbol is not handled"),
1a72702b 3636 input_bfd, input_section, rel->r_offset);
ab96bf03 3637
dbaa2011 3638 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
3639 /* Handled below. */
3640 ;
0e1862bb 3641 else if (bfd_link_relocatable (info))
8a3975e6 3642 {
1049f94e 3643 /* This is a relocatable link. We don't have to change
8a3975e6
AO
3644 anything, unless the reloc is against a section symbol,
3645 in which case we have to adjust according to where the
3646 section symbol winds up in the output section. */
8a3975e6 3647 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
146be91a
HPN
3648 {
3649 if (! howto->partial_inplace)
3650 {
3651 /* For relocations with the addend in the
3652 relocation, we need just to update the addend.
3653 All real relocs are of type partial_inplace; this
3654 code is mostly for completeness. */
ab96bf03 3655 rel->r_addend += sec->output_offset;
146be91a
HPN
3656
3657 continue;
3658 }
3659
3660 /* Relocs of type partial_inplace need to pick up the
3661 contents in the contents and add the offset resulting
3662 from the changed location of the section symbol.
3663 Using _bfd_final_link_relocate (e.g. goto
3664 final_link_relocate) here would be wrong, because
3665 relocations marked pc_relative would get the current
3666 location subtracted, and we must only do that at the
3667 final link. */
3668 r = _bfd_relocate_contents (howto, input_bfd,
3669 sec->output_offset
3670 + sym->st_value,
3671 contents + rel->r_offset);
3672 goto relocation_done;
3673 }
8a3975e6
AO
3674
3675 continue;
3676 }
f8df10f4
JJ
3677 else if (! howto->partial_inplace)
3678 {
8517fae7 3679 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
f8df10f4
JJ
3680 addend = rel->r_addend;
3681 }
3682 else if ((sec->flags & SEC_MERGE)
3683 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
3684 {
3685 asection *msec;
3686
3687 if (howto->rightshift || howto->src_mask != 0xffffffff)
3688 {
4eca0228 3689 _bfd_error_handler
695344c0 3690 /* xgettext:c-format */
2dcf00ce
AM
3691 (_("%pB(%pA+%#" PRIx64 "): "
3692 "%s relocation against SEC_MERGE section"),
d003868e 3693 input_bfd, input_section,
2dcf00ce 3694 (uint64_t) rel->r_offset, howto->name);
b34976b6 3695 return FALSE;
f8df10f4
JJ
3696 }
3697
067653c5
AM
3698 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
3699 msec = sec;
3700 addend =
c629eae0 3701 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
f8df10f4
JJ
3702 - relocation;
3703 addend += msec->output_section->vma + msec->output_offset;
3704 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
3705 addend = 0;
3706 }
37c644f2
AO
3707 }
3708 else
3709 {
560e09e9
NC
3710 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
3711
ab96bf03 3712 relocation = 0;
37c644f2 3713 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8e45593f 3714 symname = h->root.root.string;
37c644f2
AO
3715 while (h->root.type == bfd_link_hash_indirect
3716 || h->root.type == bfd_link_hash_warning)
211dc24b 3717 h = (struct elf_link_hash_entry *) h->root.u.i.link;
37c644f2
AO
3718 if (h->root.type == bfd_link_hash_defined
3719 || h->root.type == bfd_link_hash_defweak)
3720 {
b34976b6 3721 bfd_boolean dyn;
067653c5 3722
e0af1f53 3723 dyn = htab ? htab->root.dynamic_sections_created : FALSE;
37c644f2
AO
3724 sec = h->root.u.def.section;
3725 /* In these cases, we don't need the relocation value.
3726 We check specially because in some obscure cases
435b1e90 3727 sec->output_section will be NULL. */
37c644f2 3728 if (r_type == R_SH_GOTPC
fbca6ad9
AO
3729 || r_type == R_SH_GOTPC_LOW16
3730 || r_type == R_SH_GOTPC_MEDLOW16
3731 || r_type == R_SH_GOTPC_MEDHI16
3732 || r_type == R_SH_GOTPC_HI16
3733 || ((r_type == R_SH_PLT32
3734 || r_type == R_SH_PLT_LOW16
3735 || r_type == R_SH_PLT_MEDLOW16
3736 || r_type == R_SH_PLT_MEDHI16
3737 || r_type == R_SH_PLT_HI16)
37c644f2 3738 && h->plt.offset != (bfd_vma) -1)
fbca6ad9 3739 || ((r_type == R_SH_GOT32
8e45593f
NC
3740 || r_type == R_SH_GOT20
3741 || r_type == R_SH_GOTFUNCDESC
3742 || r_type == R_SH_GOTFUNCDESC20
3743 || r_type == R_SH_GOTOFFFUNCDESC
3744 || r_type == R_SH_GOTOFFFUNCDESC20
3745 || r_type == R_SH_FUNCDESC
fbca6ad9
AO
3746 || r_type == R_SH_GOT_LOW16
3747 || r_type == R_SH_GOT_MEDLOW16
3748 || r_type == R_SH_GOT_MEDHI16
3749 || r_type == R_SH_GOT_HI16)
0e1862bb
L
3750 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3751 bfd_link_pic (info),
3752 h)
3753 && (! bfd_link_pic (info)
37c644f2 3754 || (! info->symbolic && h->dynindx != -1)
f5385ebf 3755 || !h->def_regular))
37c644f2
AO
3756 /* The cases above are those in which relocation is
3757 overwritten in the switch block below. The cases
3758 below are those in which we must defer relocation
3759 to run-time, because we can't resolve absolute
3760 addresses when creating a shared library. */
0e1862bb 3761 || (bfd_link_pic (info)
37c644f2 3762 && ((! info->symbolic && h->dynindx != -1)
f5385ebf 3763 || !h->def_regular)
37c644f2 3764 && ((r_type == R_SH_DIR32
f5385ebf 3765 && !h->forced_local)
f50ad433
KK
3766 || (r_type == R_SH_REL32
3767 && !SYMBOL_CALLS_LOCAL (info, h)))
37c644f2
AO
3768 && ((input_section->flags & SEC_ALLOC) != 0
3769 /* DWARF will emit R_SH_DIR32 relocations in its
3770 sections against symbols defined externally
3771 in shared libraries. We can't do anything
3772 with them here. */
067653c5 3773 || ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 3774 && h->def_dynamic)))
1448fa32
KK
3775 /* Dynamic relocs are not propagated for SEC_DEBUGGING
3776 sections because such sections are not SEC_ALLOC and
3777 thus ld.so will not process them. */
3778 || (sec->output_section == NULL
3779 && ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 3780 && h->def_dynamic))
3376eaf5 3781 || (sec->output_section == NULL
8e45593f
NC
3782 && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE
3783 || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD)))
ab96bf03
AM
3784 ;
3785 else if (sec->output_section != NULL)
3786 relocation = ((h->root.u.def.value
3787 + sec->output_section->vma
3788 + sec->output_offset)
3789 /* A STO_SH5_ISA32 causes a "bitor 1" to the
3790 symbol value, unless we've seen
3791 STT_DATALABEL on the way to it. */
3792 | ((h->other & STO_SH5_ISA32) != 0
3793 && ! seen_stt_datalabel));
0e1862bb 3794 else if (!bfd_link_relocatable (info)
1d5316ab
AM
3795 && (_bfd_elf_section_offset (output_bfd, info,
3796 input_section,
3797 rel->r_offset)
3798 != (bfd_vma) -1))
37c644f2 3799 {
4eca0228 3800 _bfd_error_handler
695344c0 3801 /* xgettext:c-format */
2dcf00ce
AM
3802 (_("%pB(%pA+%#" PRIx64 "): "
3803 "unresolvable %s relocation against symbol `%s'"),
843fe662
L
3804 input_bfd,
3805 input_section,
2dcf00ce 3806 (uint64_t) rel->r_offset,
843fe662
L
3807 howto->name,
3808 h->root.root.string);
b34976b6 3809 return FALSE;
37c644f2 3810 }
37c644f2
AO
3811 }
3812 else if (h->root.type == bfd_link_hash_undefweak)
6ee6e05a 3813 resolved_to_zero = UNDEFWEAK_NO_DYNAMIC_RELOC (info, h);
59c2e50f 3814 else if (info->unresolved_syms_in_objects == RM_IGNORE
067653c5 3815 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
ab96bf03 3816 ;
0e1862bb 3817 else if (!bfd_link_relocatable (info))
95a51568
FS
3818 info->callbacks->undefined_symbol
3819 (info, h->root.root.string, input_bfd, input_section,
3820 rel->r_offset,
3821 (info->unresolved_syms_in_objects == RM_DIAGNOSE
3822 && !info->warn_unresolved_syms)
3823 || ELF_ST_VISIBILITY (h->other));
3824 }
37c644f2 3825
dbaa2011 3826 if (sec != NULL && discarded_section (sec))
e4067dbb 3827 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3828 rel, 1, relend, howto, 0, contents);
ab96bf03 3829
0e1862bb 3830 if (bfd_link_relocatable (info))
ab96bf03
AM
3831 continue;
3832
8e45593f
NC
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
435b1e90 3843 switch ((int) r_type)
37c644f2
AO
3844 {
3845 final_link_relocate:
3846 /* COFF relocs don't use the addend. The addend is used for
435b1e90 3847 R_SH_DIR32 to be compatible with other compilers. */
37c644f2
AO
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:
cd6ec716
DD
3854 goto final_link_relocate;
3855
37c644f2
AO
3856 case R_SH_DIR8WPN:
3857 case R_SH_DIR8WPZ:
3858 case R_SH_DIR8WPL:
cd6ec716
DD
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 {
4eca0228 3881 _bfd_error_handler
695344c0 3882 /* xgettext:c-format */
2dcf00ce
AM
3883 (_("%pB: %#" PRIx64 ": fatal: "
3884 "unaligned branch target for relax-support relocation"),
4eca0228 3885 input_section->owner,
2dcf00ce 3886 (uint64_t) rel->r_offset);
cd6ec716 3887 bfd_set_error (bfd_error_bad_value);
b34976b6 3888 return FALSE;
cd6ec716
DD
3889 }
3890 relocation -= 4;
3891 goto final_link_relocate;
3892 }
3893 r = bfd_reloc_ok;
3894 break;
37c644f2
AO
3895
3896 default:
3897 bfd_set_error (bfd_error_bad_value);
b34976b6 3898 return FALSE;
37c644f2 3899
d38eb334
DD
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 {
4eca0228 3911 _bfd_error_handler
695344c0 3912 /* xgettext:c-format */
2dcf00ce
AM
3913 (_("%pB: %#" PRIx64 ": fatal: "
3914 "unaligned %s relocation %#" PRIx64),
3915 input_section->owner, (uint64_t) rel->r_offset,
3916 howto->name, (uint64_t) relocation);
d38eb334
DD
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 {
4eca0228 3927 _bfd_error_handler
695344c0 3928 /* xgettext:c-format */
2dcf00ce
AM
3929 (_("%pB: %#" PRIx64 ": fatal: "
3930 "unaligned %s relocation %#" PRIx64 ""),
4eca0228 3931 input_section->owner,
2dcf00ce
AM
3932 (uint64_t) rel->r_offset, howto->name,
3933 (uint64_t) relocation);
d38eb334
DD
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 {
4eca0228 3943 _bfd_error_handler
695344c0 3944 /* xgettext:c-format */
2dcf00ce
AM
3945 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHA relocation %" PRId64
3946 " not in range -32..32"),
4eca0228 3947 input_section->owner,
2dcf00ce
AM
3948 (uint64_t) rel->r_offset,
3949 (int64_t) relocation);
d38eb334
DD
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 {
4eca0228 3959 _bfd_error_handler
695344c0 3960 /* xgettext:c-format */
2dcf00ce
AM
3961 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHL relocation %" PRId64
3962 " not in range -32..32"),
4eca0228 3963 input_section->owner,
2dcf00ce
AM
3964 (uint64_t) rel->r_offset,
3965 (int64_t) relocation);
d38eb334
DD
3966 bfd_set_error (bfd_error_bad_value);
3967 return FALSE;
3968 }
3969 goto final_link_relocate;
3970
37c644f2
AO
3971 case R_SH_DIR32:
3972 case R_SH_REL32:
0e1862bb 3973 if (bfd_link_pic (info)
04e534c3 3974 && (h == NULL
6ee6e05a
L
3975 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3976 && !resolved_to_zero)
04e534c3 3977 || h->root.type != bfd_link_hash_undefweak)
cf35638d 3978 && r_symndx != STN_UNDEF
37c644f2 3979 && (input_section->flags & SEC_ALLOC) != 0
3348747a 3980 && !is_vxworks_tls
46e993b9 3981 && (r_type == R_SH_DIR32
3d85aebe 3982 || !SYMBOL_CALLS_LOCAL (info, h)))
37c644f2
AO
3983 {
3984 Elf_Internal_Rela outrel;
947216bf 3985 bfd_byte *loc;
b34976b6 3986 bfd_boolean skip, relocate;
37c644f2
AO
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 {
83bac4b0
NC
3994 sreloc = _bfd_elf_get_dynamic_reloc_section
3995 (input_bfd, input_section, /*rela?*/ TRUE);
3996 if (sreloc == NULL)
b34976b6 3997 return FALSE;
37c644f2
AO
3998 }
3999
b34976b6
AM
4000 skip = FALSE;
4001 relocate = FALSE;
37c644f2 4002
c629eae0
JJ
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)
b34976b6 4007 skip = TRUE;
0bb2d96a 4008 else if (outrel.r_offset == (bfd_vma) -2)
b34976b6 4009 skip = TRUE, relocate = TRUE;
37c644f2
AO
4010 outrel.r_offset += (input_section->output_section->vma
4011 + input_section->output_offset);
4012
4013 if (skip)
0bb2d96a 4014 memset (&outrel, 0, sizeof outrel);
37c644f2
AO
4015 else if (r_type == R_SH_REL32)
4016 {
4017 BFD_ASSERT (h != NULL && h->dynindx != -1);
37c644f2 4018 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
146be91a 4019 outrel.r_addend
55e6e397
RS
4020 = (howto->partial_inplace
4021 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4022 : addend);
37c644f2 4023 }
e0af1f53 4024 else if (fdpic_p
8e45593f
NC
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 }
37c644f2
AO
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)
f5385ebf 4048 && h->def_regular))
37c644f2 4049 {
55e6e397 4050 relocate = howto->partial_inplace;
37c644f2 4051 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
37c644f2
AO
4052 }
4053 else
4054 {
4055 BFD_ASSERT (h->dynindx != -1);
37c644f2 4056 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
37c644f2 4057 }
55e6e397
RS
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);
37c644f2
AO
4063 }
4064
947216bf
AM
4065 loc = sreloc->contents;
4066 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4067 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
37c644f2 4068
8e45593f
NC
4069 check_segment[0] = check_segment[1] = -1;
4070
37c644f2
AO
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 }
0e1862bb 4078 else if (fdpic_p && !bfd_link_pic (info)
8e45593f
NC
4079 && r_type == R_SH_DIR32
4080 && (input_section->flags & SEC_ALLOC) != 0)
4081 {
4082 bfd_vma offset;
4083
e0af1f53
MR
4084 BFD_ASSERT (htab);
4085
8e45593f
NC
4086 if (sh_elf_osec_readonly_p (output_bfd,
4087 input_section->output_section))
4088 {
4eca0228 4089 _bfd_error_handler
695344c0 4090 /* xgettext:c-format */
2dcf00ce
AM
4091 (_("%pB(%pA+%#" PRIx64 "): "
4092 "cannot emit fixup to `%s' in read-only section"),
8e45593f
NC
4093 input_bfd,
4094 input_section,
2dcf00ce 4095 (uint64_t) rel->r_offset,
8e45593f
NC
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 }
a6f713fc
KK
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
1b786873 4114 && h->root.type == bfd_link_hash_undefweak)
a6f713fc 4115 check_segment[0] = check_segment[1] = -1;
37c644f2
AO
4116 goto final_link_relocate;
4117
fbca6ad9 4118 case R_SH_GOTPLT32:
fbca6ad9
AO
4119 /* Relocation is to the entry for this symbol in the
4120 procedure linkage table. */
4121
4122 if (h == NULL
f5385ebf 4123 || h->forced_local
0e1862bb 4124 || ! bfd_link_pic (info)
fbca6ad9
AO
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. */
fbca6ad9 4133
e0af1f53 4134 BFD_ASSERT (htab);
067653c5 4135 BFD_ASSERT (sgotplt != NULL);
fbca6ad9 4136 relocation = (sgotplt->output_offset
55e6e397
RS
4137 + (get_plt_index (htab->plt_info, h->plt.offset)
4138 + 3) * 4);
fbca6ad9
AO
4139
4140#ifdef GOT_BIAS
4141 relocation -= GOT_BIAS;
4142#endif
4143
4144 goto final_link_relocate;
4145
4146 force_got:
37c644f2 4147 case R_SH_GOT32:
8e45593f 4148 case R_SH_GOT20:
37c644f2
AO
4149 /* Relocation is to the entry for this symbol in the global
4150 offset table. */
067653c5 4151
e0af1f53 4152 BFD_ASSERT (htab);
067653c5 4153 BFD_ASSERT (sgot != NULL);
8e45593f 4154 check_segment[0] = check_segment[1] = -1;
37c644f2
AO
4155
4156 if (h != NULL)
4157 {
b34976b6 4158 bfd_boolean dyn;
37c644f2
AO
4159
4160 off = h->got.offset;
4161 BFD_ASSERT (off != (bfd_vma) -1);
4162
067653c5 4163 dyn = htab->root.dynamic_sections_created;
0e1862bb
L
4164 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4165 bfd_link_pic (info),
4166 h)
4167 || (bfd_link_pic (info)
3d85aebe 4168 && SYMBOL_REFERENCES_LOCAL (info, h))
6ee6e05a
L
4169 || ((ELF_ST_VISIBILITY (h->other)
4170 || resolved_to_zero)
04e534c3 4171 && h->root.type == bfd_link_hash_undefweak))
37c644f2
AO
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);
211dc24b 4191 h->got.offset |= 1;
8e45593f
NC
4192
4193 /* If we initialize the GOT entry here with a valid
4194 symbol address, also add a fixup. */
0e1862bb 4195 if (fdpic_p && !bfd_link_pic (info)
8e45593f
NC
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);
37c644f2
AO
4203 }
4204 }
4205
8e45593f 4206 relocation = sh_elf_got_offset (htab) + off;
37c644f2
AO
4207 }
4208 else
4209 {
37c644f2
AO
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
0e1862bb 4224 if (bfd_link_pic (info))
37c644f2 4225 {
37c644f2 4226 Elf_Internal_Rela outrel;
947216bf 4227 bfd_byte *loc;
37c644f2 4228
37c644f2
AO
4229 outrel.r_offset = (sgot->output_section->vma
4230 + sgot->output_offset
4231 + off);
e0af1f53 4232 if (fdpic_p)
8e45593f
NC
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 }
947216bf
AM
4245 loc = srelgot->contents;
4246 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4247 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
37c644f2 4248 }
e0af1f53 4249 else if (fdpic_p
8e45593f
NC
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);
37c644f2 4256
211dc24b 4257 local_got_offsets[r_symndx] |= 1;
37c644f2
AO
4258 }
4259
8e45593f 4260 relocation = sh_elf_got_offset (htab) + off;
37c644f2
AO
4261 }
4262
fbca6ad9 4263#ifdef GOT_BIAS
067653c5 4264 relocation -= GOT_BIAS;
fbca6ad9
AO
4265#endif
4266
8e45593f
NC
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;
37c644f2
AO
4276
4277 case R_SH_GOTOFF:
8e45593f 4278 case R_SH_GOTOFF20:
8e45593f
NC
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. */
e0af1f53 4283 BFD_ASSERT (htab);
8e45593f
NC
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;
37c644f2 4288
fbca6ad9
AO
4289#ifdef GOT_BIAS
4290 relocation -= GOT_BIAS;
4291#endif
4292
4293 addend = rel->r_addend;
4294
8e45593f
NC
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;
37c644f2
AO
4304
4305 case R_SH_GOTPC:
4306 /* Use global offset table as symbol value. */
4307
8e45593f
NC
4308 BFD_ASSERT (sgotplt != NULL);
4309 relocation = sgotplt->output_section->vma + sgotplt->output_offset;
37c644f2 4310
fbca6ad9
AO
4311#ifdef GOT_BIAS
4312 relocation += GOT_BIAS;
4313#endif
4314
4315 addend = rel->r_addend;
4316
37c644f2
AO
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
8e45593f
NC
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
f5385ebf 4335 if (h->forced_local)
37c644f2
AO
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
067653c5 4346 BFD_ASSERT (splt != NULL);
8e45593f 4347 check_segment[1] = plt_segment;
37c644f2
AO
4348 relocation = (splt->output_section->vma
4349 + splt->output_offset
4350 + h->plt.offset);
4351
fbca6ad9
AO
4352 addend = rel->r_addend;
4353
37c644f2
AO
4354 goto final_link_relocate;
4355
8e45593f
NC
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
e0af1f53
MR
4368 BFD_ASSERT (htab);
4369
8e45593f
NC
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 {
e0af1f53 4387 reloc_section = sgot;
8e45593f
NC
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
0e1862bb 4477 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
4478 {
4479 bfd_vma offset;
4480
4481 if (sh_elf_osec_readonly_p (output_bfd,
4482 reloc_section->output_section))
4483 {
4eca0228 4484 _bfd_error_handler
695344c0 4485 /* xgettext:c-format */
2dcf00ce
AM
4486 (_("%pB(%pA+%#" PRIx64 "): "
4487 "cannot emit fixup to `%s' in read-only section"),
8e45593f
NC
4488 input_bfd,
4489 input_section,
2dcf00ce 4490 (uint64_t) rel->r_offset,
8e45593f
NC
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
8e45593f
NC
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. */
e0af1f53 4578 BFD_ASSERT (htab);
8e45593f
NC
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
695344c0 4588 /* xgettext:c-format */
2dcf00ce
AM
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);
8e45593f
NC
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
e0af1f53
MR
4633 relocation -= (htab->root.hgot->root.u.def.value
4634 + sgotplt->output_offset);
8e45593f
NC
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
37c644f2
AO
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 }
3376eaf5
KK
4666
4667 case R_SH_TLS_GD_32:
4668 case R_SH_TLS_IE_32:
e0af1f53 4669 BFD_ASSERT (htab);
8e45593f 4670 check_segment[0] = check_segment[1] = -1;
3376eaf5 4671 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
8e45593f 4672 got_type = GOT_UNKNOWN;
3376eaf5 4673 if (h == NULL && local_got_offsets)
8e45593f 4674 got_type = sh_elf_local_got_type (input_bfd) [r_symndx];
3376eaf5
KK
4675 else if (h != NULL)
4676 {
8e45593f 4677 got_type = sh_elf_hash_entry (h)->got_type;
0e1862bb 4678 if (! bfd_link_pic (info)
3376eaf5 4679 && (h->dynindx == -1
f5385ebf 4680 || h->def_regular))
267fb3c1 4681 r_type = R_SH_TLS_LE_32;
3376eaf5
KK
4682 }
4683
8e45593f 4684 if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE)
3376eaf5
KK
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;
3376eaf5
KK
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;
b34976b6 4696 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
3376eaf5
KK
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;
a05b9f5e
NC
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
3376eaf5
KK
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
a05b9f5e
NC
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
3376eaf5 4729 insn = bfd_get_16 (input_bfd, contents + offset + 2);
a05b9f5e
NC
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
3376eaf5 4737 insn = bfd_get_16 (input_bfd, contents + offset + 4);
a05b9f5e
NC
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
3376eaf5 4744 insn = bfd_get_16 (input_bfd, contents + offset + 6);
a05b9f5e
NC
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
3376eaf5 4751 insn = bfd_get_16 (input_bfd, contents + offset + 8);
a05b9f5e
NC
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
3376eaf5 4758 insn = bfd_get_16 (input_bfd, contents + offset + 10);
a05b9f5e
NC
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);
3376eaf5
KK
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 {
91d6fa6a 4773 int target;
3376eaf5
KK
4774
4775 /* IE->LE transition:
a05b9f5e
NC
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:
3376eaf5 4784 We change it into:
a05b9f5e
NC
4785 mov.l .Ln,rM;
4786 stc gbr,rN;
4787 nop;
4788 ...;
4789 1: x@TPOFF;
4790 2:. */
3376eaf5
KK
4791
4792 offset = rel->r_offset;
a05b9f5e
NC
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
3376eaf5
KK
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
a05b9f5e
NC
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
91d6fa6a 4818 target = insn & 0x00ff;
a05b9f5e 4819
3376eaf5 4820 insn = bfd_get_16 (input_bfd, contents + offset + 2);
a05b9f5e
NC
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
3376eaf5 4827 insn = bfd_get_16 (input_bfd, contents + offset + 4);
a05b9f5e
NC
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
91d6fa6a 4834 insn = 0xd000 | (insn & 0x0f00) | target;
3376eaf5
KK
4835 bfd_put_16 (output_bfd, insn, contents + offset + 0);
4836 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
4837 }
4838
267fb3c1
KK
4839 bfd_put_32 (output_bfd, tpoff (info, relocation),
4840 contents + rel->r_offset);
3376eaf5
KK
4841 continue;
4842 }
4843
8e45593f 4844 if (sgot == NULL || sgotplt == NULL)
3376eaf5
KK
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
267fb3c1
KK
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);
8e45593f 4864 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
267fb3c1
KK
4865 contents + rel->r_offset);
4866 continue;
4867 }
4868
3376eaf5
KK
4869 if ((off & 1) != 0)
4870 off &= ~1;
26e41594 4871 else
3376eaf5
KK
4872 {
4873 Elf_Internal_Rela outrel;
947216bf 4874 bfd_byte *loc;
3376eaf5
KK
4875 int dr_type, indx;
4876
3376eaf5
KK
4877 outrel.r_offset = (sgot->output_section->vma
4878 + sgot->output_offset + off);
4879
267fb3c1 4880 if (h == NULL || h->dynindx == -1)
c95b8a7a
KK
4881 indx = 0;
4882 else
4883 indx = h->dynindx;
267fb3c1 4884
3376eaf5
KK
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);
947216bf
AM
4892 loc = srelgot->contents;
4893 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3376eaf5
KK
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++;
947216bf
AM
4911 loc += sizeof (Elf32_External_Rela);
4912 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3376eaf5
KK
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))
8e45593f 4926 relocation = sh_elf_got_offset (htab) + off;
3376eaf5
KK
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;
a05b9f5e
NC
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
3376eaf5
KK
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
8e45593f 4983 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
3376eaf5
KK
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:
e0af1f53 4994 BFD_ASSERT (htab);
8e45593f 4995 check_segment[0] = check_segment[1] = -1;
0e1862bb 4996 if (! bfd_link_pic (info))
3376eaf5
KK
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;
a05b9f5e
NC
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
3376eaf5
KK
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
8e45593f 5051 if (sgot == NULL || sgotplt == NULL)
3376eaf5
KK
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;
947216bf 5060 bfd_byte *loc;
3376eaf5 5061
3376eaf5
KK
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);
947216bf
AM
5066 loc = srelgot->contents;
5067 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3376eaf5
KK
5068 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5069 htab->tls_ldm_got.offset |= 1;
5070 }
5071
8e45593f 5072 relocation = sh_elf_got_offset (htab) + off;
3376eaf5
KK
5073 addend = rel->r_addend;
5074
5075 goto final_link_relocate;
5076
5077 case R_SH_TLS_LDO_32:
8e45593f 5078 check_segment[0] = check_segment[1] = -1;
0e1862bb 5079 if (! bfd_link_pic (info))
267fb3c1 5080 relocation = tpoff (info, relocation);
3376eaf5
KK
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;
947216bf 5091 bfd_byte *loc;
3376eaf5 5092
8e45593f
NC
5093 check_segment[0] = check_segment[1] = -1;
5094
3cbc1e5e 5095 if (!bfd_link_dll (info))
267fb3c1
KK
5096 {
5097 relocation = tpoff (info, relocation);
5098 addend = rel->r_addend;
5099 goto final_link_relocate;
5100 }
5101
3376eaf5
KK
5102 if (sreloc == NULL)
5103 {
83bac4b0
NC
5104 sreloc = _bfd_elf_get_dynamic_reloc_section
5105 (input_bfd, input_section, /*rela?*/ TRUE);
5106 if (sreloc == NULL)
b34976b6 5107 return FALSE;
3376eaf5
KK
5108 }
5109
267fb3c1
KK
5110 if (h == NULL || h->dynindx == -1)
5111 indx = 0;
5112 else
5113 indx = h->dynindx;
5114
3376eaf5
KK
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;
3376eaf5 5123
947216bf
AM
5124 loc = sreloc->contents;
5125 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5126 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3376eaf5
KK
5127 continue;
5128 }
37c644f2
AO
5129 }
5130
146be91a 5131 relocation_done:
e0af1f53 5132 if (fdpic_p && check_segment[0] != (unsigned) -1
8e45593f
NC
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 {
0e1862bb 5138 if (bfd_link_pic (info))
8e45593f
NC
5139 {
5140 info->callbacks->einfo
695344c0 5141 /* xgettext:c-format */
8e45593f
NC
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
695344c0 5148 /* xgettext:c-format */
8e45593f
NC
5149 (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5150 input_bfd, input_section, rel->r_offset, symname);
5151 }
5152
fbedb42d 5153 elf_elfheader (output_bfd)->e_flags |= EF_SH_PIC;
8e45593f
NC
5154 }
5155
37c644f2
AO
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)
dfeffb9f 5168 name = NULL;
37c644f2
AO
5169 else
5170 {
252b5132
RH
5171 name = (bfd_elf_string_from_elf_section
5172 (input_bfd, symtab_hdr->sh_link, sym->st_name));
5173 if (name == NULL)
b34976b6 5174 return FALSE;
252b5132 5175 if (*name == '\0')
fd361982 5176 name = bfd_section_name (sec);
252b5132 5177 }
1a72702b
AM
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);
252b5132
RH
5181 }
5182 break;
5183 }
5184 }
5185 }
5186
b34976b6 5187 return TRUE;
252b5132
RH
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 *
09fd220b
KK
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)
252b5132
RH
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;
6cdc0ccc 5206 Elf_Internal_Sym *isymbuf = NULL;
252b5132
RH
5207
5208 /* We only need to handle the case of relaxing, or of having a
5209 particular set of section contents, specially. */
1049f94e 5210 if (relocatable
252b5132
RH
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,
1049f94e 5214 relocatable,
252b5132
RH
5215 symbols);
5216
0ffa91dd 5217 symtab_hdr = &elf_symtab_hdr (input_bfd);
252b5132
RH
5218
5219 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
eea6121a 5220 (size_t) input_section->size);
252b5132
RH
5221
5222 if ((input_section->flags & SEC_RELOC) != 0
5223 && input_section->reloc_count > 0)
5224 {
252b5132 5225 asection **secpp;
6cdc0ccc 5226 Elf_Internal_Sym *isym, *isymend;
9ad5cbcf 5227 bfd_size_type amt;
252b5132 5228
45d6a902 5229 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 5230 (input_bfd, input_section, NULL,
b34976b6 5231 (Elf_Internal_Rela *) NULL, FALSE));
252b5132
RH
5232 if (internal_relocs == NULL)
5233 goto error_return;
5234
6cdc0ccc
AM
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 }
252b5132 5245
9ad5cbcf
AM
5246 amt = symtab_hdr->sh_info;
5247 amt *= sizeof (asection *);
5248 sections = (asection **) bfd_malloc (amt);
5249 if (sections == NULL && amt != 0)
252b5132
RH
5250 goto error_return;
5251
6cdc0ccc
AM
5252 isymend = isymbuf + symtab_hdr->sh_info;
5253 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
252b5132
RH
5254 {
5255 asection *isec;
5256
6cdc0ccc 5257 if (isym->st_shndx == SHN_UNDEF)
252b5132 5258 isec = bfd_und_section_ptr;
6cdc0ccc 5259 else if (isym->st_shndx == SHN_ABS)
252b5132 5260 isec = bfd_abs_section_ptr;
6cdc0ccc 5261 else if (isym->st_shndx == SHN_COMMON)
252b5132
RH
5262 isec = bfd_com_section_ptr;
5263 else
6cdc0ccc 5264 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
252b5132
RH
5265
5266 *secpp = isec;
5267 }
5268
5269 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5270 input_section, data, internal_relocs,
6cdc0ccc 5271 isymbuf, sections))
252b5132
RH
5272 goto error_return;
5273
5274 if (sections != NULL)
5275 free (sections);
6cdc0ccc
AM
5276 if (isymbuf != NULL
5277 && symtab_hdr->contents != (unsigned char *) isymbuf)
5278 free (isymbuf);
5279 if (elf_section_data (input_section)->relocs != internal_relocs)
252b5132 5280 free (internal_relocs);
252b5132
RH
5281 }
5282
5283 return data;
5284
5285 error_return:
252b5132
RH
5286 if (sections != NULL)
5287 free (sections);
6cdc0ccc
AM
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);
252b5132
RH
5294 return NULL;
5295}
917583ad 5296
3376eaf5
KK
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
09fd220b 5302dtpoff_base (struct bfd_link_info *info)
3376eaf5 5303{
e1918d23
AM
5304 /* If tls_sec is NULL, we should have signalled an error already. */
5305 if (elf_hash_table (info)->tls_sec == NULL)
267fb3c1 5306 return 0;
e1918d23 5307 return elf_hash_table (info)->tls_sec->vma;
3376eaf5
KK
5308}
5309
267fb3c1
KK
5310/* Return the relocation value for R_SH_TLS_TPOFF32.. */
5311
5312static bfd_vma
09fd220b 5313tpoff (struct bfd_link_info *info, bfd_vma address)
267fb3c1 5314{
e1918d23
AM
5315 /* If tls_sec is NULL, we should have signalled an error already. */
5316 if (elf_hash_table (info)->tls_sec == NULL)
267fb3c1
KK
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. */
044ad7e3
KK
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));
267fb3c1
KK
5323}
5324
252b5132 5325static asection *
09fd220b 5326sh_elf_gc_mark_hook (asection *sec,
07adf181
AM
5327 struct bfd_link_info *info,
5328 Elf_Internal_Rela *rel,
5329 struct elf_link_hash_entry *h,
09fd220b 5330 Elf_Internal_Sym *sym)
252b5132
RH
5331{
5332 if (h != NULL)
07adf181
AM
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 }
9ad5cbcf 5339
07adf181 5340 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH
5341}
5342
067653c5
AM
5343/* Copy the extra info we tack onto an elf_link_hash_entry. */
5344
5345static void
fcfa13d2 5346sh_elf_copy_indirect_symbol (struct bfd_link_info *info,
09fd220b
KK
5347 struct elf_link_hash_entry *dir,
5348 struct elf_link_hash_entry *ind)
067653c5
AM
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 {
3bf083ed
AM
5359 struct elf_dyn_relocs **pp;
5360 struct elf_dyn_relocs *p;
067653c5 5361
fcfa13d2 5362 /* Add reloc counts against the indirect sym to the direct sym
067653c5
AM
5363 list. Merge any entries against the same section. */
5364 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
5365 {
3bf083ed 5366 struct elf_dyn_relocs *q;
067653c5
AM
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 }
4989d792
SC
5385 edir->gotplt_refcount = eind->gotplt_refcount;
5386 eind->gotplt_refcount = 0;
8e45593f 5387 edir->funcdesc.refcount += eind->funcdesc.refcount;
68ffbac6 5388 eind->funcdesc.refcount = 0;
8e45593f 5389 edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount;
68ffbac6 5390 eind->abs_funcdesc_refcount = 0;
067653c5 5391
3376eaf5
KK
5392 if (ind->root.type == bfd_link_hash_indirect
5393 && dir->got.refcount <= 0)
5394 {
8e45593f
NC
5395 edir->got_type = eind->got_type;
5396 eind->got_type = GOT_UNKNOWN;
3376eaf5
KK
5397 }
5398
04e534c3 5399 if (ind->root.type != bfd_link_hash_indirect
f5385ebf
AM
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. */
e81830c5
AM
5405 if (dir->versioned != versioned_hidden)
5406 dir->ref_dynamic |= ind->ref_dynamic;
f5385ebf
AM
5407 dir->ref_regular |= ind->ref_regular;
5408 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
5409 dir->needs_plt |= ind->needs_plt;
5410 }
04e534c3 5411 else
fcfa13d2 5412 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
067653c5
AM
5413}
5414
3376eaf5 5415static int
09fd220b
KK
5416sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
5417 int is_local)
3376eaf5 5418{
0e1862bb 5419 if (bfd_link_pic (info))
3376eaf5
KK
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
252b5132
RH
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. */
435b1e90 5439
b34976b6 5440static bfd_boolean
09fd220b
KK
5441sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
5442 const Elf_Internal_Rela *relocs)
252b5132
RH
5443{
5444 Elf_Internal_Shdr *symtab_hdr;
5582a088 5445 struct elf_link_hash_entry **sym_hashes;
067653c5 5446 struct elf_sh_link_hash_table *htab;
252b5132
RH
5447 const Elf_Internal_Rela *rel;
5448 const Elf_Internal_Rela *rel_end;
37c644f2 5449 asection *sreloc;
3376eaf5 5450 unsigned int r_type;
85e02784 5451 enum got_type got_type, old_got_type;
435b1e90 5452
37c644f2
AO
5453 sreloc = NULL;
5454
0e1862bb 5455 if (bfd_link_relocatable (info))
b34976b6 5456 return TRUE;
435b1e90 5457
65281396
AM
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
0ffa91dd
NC
5467 BFD_ASSERT (is_sh_elf (abfd));
5468
5469 symtab_hdr = &elf_symtab_hdr (abfd);
252b5132 5470 sym_hashes = elf_sym_hashes (abfd);
435b1e90 5471
067653c5 5472 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
5473 if (htab == NULL)
5474 return FALSE;
5475
252b5132
RH
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;
435b1e90 5481
252b5132 5482 r_symndx = ELF32_R_SYM (rel->r_info);
3376eaf5
KK
5483 r_type = ELF32_R_TYPE (rel->r_info);
5484
252b5132 5485 if (r_symndx < symtab_hdr->sh_info)
435b1e90 5486 h = NULL;
252b5132 5487 else
396a6083
SC
5488 {
5489 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
396a6083
SC
5490 while (h->root.type == bfd_link_hash_indirect
5491 || h->root.type == bfd_link_hash_warning)
211dc24b 5492 h = (struct elf_link_hash_entry *) h->root.u.i.link;
396a6083 5493 }
435b1e90 5494
3376eaf5 5495 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
0e1862bb 5496 if (! bfd_link_pic (info)
3376eaf5
KK
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
f5385ebf 5502 || h->def_regular))
3376eaf5
KK
5503 r_type = R_SH_TLS_LE_32;
5504
8e45593f
NC
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
37c644f2 5529 /* Some relocs require a global offset table. */
ce558b89 5530 if (htab->root.sgot == NULL)
37c644f2 5531 {
3376eaf5 5532 switch (r_type)
37c644f2 5533 {
8e45593f
NC
5534 case R_SH_DIR32:
5535 /* This may require an rofixup. */
5536 if (!htab->fdpic_p)
5537 break;
1a0670f3 5538 /* Fall through. */
fbca6ad9 5539 case R_SH_GOTPLT32:
37c644f2 5540 case R_SH_GOT32:
8e45593f 5541 case R_SH_GOT20:
37c644f2 5542 case R_SH_GOTOFF:
8e45593f
NC
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:
37c644f2 5549 case R_SH_GOTPC:
3376eaf5
KK
5550 case R_SH_TLS_GD_32:
5551 case R_SH_TLS_LD_32:
5552 case R_SH_TLS_IE_32:
8e45593f
NC
5553 if (htab->root.dynobj == NULL)
5554 htab->root.dynobj = abfd;
5555 if (!create_got_section (htab->root.dynobj, info))
5556 return FALSE;
37c644f2
AO
5557 break;
5558
5559 default:
5560 break;
5561 }
5562 }
5563
3376eaf5 5564 switch (r_type)
067653c5
AM
5565 {
5566 /* This relocation describes the C++ object vtable hierarchy.
5567 Reconstruct it for later use during GC. */
435b1e90 5568 case R_SH_GNU_VTINHERIT:
c152c796 5569 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 5570 return FALSE;
435b1e90
KH
5571 break;
5572
067653c5
AM
5573 /* This relocation describes which C++ vtable entries are actually
5574 used. Record for later use during GC. */
435b1e90 5575 case R_SH_GNU_VTENTRY:
a0ea3a14 5576 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 5577 return FALSE;
435b1e90 5578 break;
37c644f2 5579
3376eaf5 5580 case R_SH_TLS_IE_32:
0e1862bb 5581 if (bfd_link_pic (info))
3376eaf5
KK
5582 info->flags |= DF_STATIC_TLS;
5583
5584 /* FALLTHROUGH */
267fb3c1 5585 force_got:
3376eaf5 5586 case R_SH_TLS_GD_32:
37c644f2 5587 case R_SH_GOT32:
8e45593f 5588 case R_SH_GOT20:
8e45593f
NC
5589 case R_SH_GOTFUNCDESC:
5590 case R_SH_GOTFUNCDESC20:
3376eaf5
KK
5591 switch (r_type)
5592 {
5593 default:
8e45593f 5594 got_type = GOT_NORMAL;
3376eaf5
KK
5595 break;
5596 case R_SH_TLS_GD_32:
8e45593f 5597 got_type = GOT_TLS_GD;
3376eaf5
KK
5598 break;
5599 case R_SH_TLS_IE_32:
8e45593f
NC
5600 got_type = GOT_TLS_IE;
5601 break;
5602 case R_SH_GOTFUNCDESC:
5603 case R_SH_GOTFUNCDESC20:
5604 got_type = GOT_FUNCDESC;
3376eaf5
KK
5605 break;
5606 }
5607
37c644f2 5608 if (h != NULL)
3376eaf5 5609 {
211dc24b 5610 h->got.refcount += 1;
8e45593f 5611 old_got_type = sh_elf_hash_entry (h)->got_type;
3376eaf5 5612 }
37c644f2
AO
5613 else
5614 {
067653c5
AM
5615 bfd_signed_vma *local_got_refcounts;
5616
435b1e90 5617 /* This is a global offset table entry for a local
067653c5
AM
5618 symbol. */
5619 local_got_refcounts = elf_local_got_refcounts (abfd);
5620 if (local_got_refcounts == NULL)
37c644f2 5621 {
dc810e39 5622 bfd_size_type size;
37c644f2 5623
dc810e39 5624 size = symtab_hdr->sh_info;
067653c5 5625 size *= sizeof (bfd_signed_vma);
3376eaf5 5626 size += symtab_hdr->sh_info;
067653c5
AM
5627 local_got_refcounts = ((bfd_signed_vma *)
5628 bfd_zalloc (abfd, size));
5629 if (local_got_refcounts == NULL)
b34976b6 5630 return FALSE;
067653c5 5631 elf_local_got_refcounts (abfd) = local_got_refcounts;
8e45593f 5632 sh_elf_local_got_type (abfd)
3376eaf5 5633 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
37c644f2 5634 }
211dc24b 5635 local_got_refcounts[r_symndx] += 1;
8e45593f 5636 old_got_type = sh_elf_local_got_type (abfd) [r_symndx];
3376eaf5
KK
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. */
8e45593f
NC
5641 if (old_got_type != got_type && old_got_type != GOT_UNKNOWN
5642 && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE))
3376eaf5 5643 {
8e45593f
NC
5644 if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD)
5645 got_type = GOT_TLS_IE;
3376eaf5
KK
5646 else
5647 {
8e45593f
NC
5648 if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC)
5649 && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL))
4eca0228 5650 _bfd_error_handler
695344c0 5651 /* xgettext:c-format */
871b3ab2 5652 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
8e45593f
NC
5653 abfd, h->root.root.string);
5654 else if (old_got_type == GOT_FUNCDESC
5655 || got_type == GOT_FUNCDESC)
4eca0228 5656 _bfd_error_handler
695344c0 5657 /* xgettext:c-format */
871b3ab2 5658 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
8e45593f
NC
5659 abfd, h->root.root.string);
5660 else
4eca0228 5661 _bfd_error_handler
695344c0 5662 /* xgettext:c-format */
871b3ab2 5663 (_("%pB: `%s' accessed both as normal and thread local symbol"),
4eca0228 5664 abfd, h->root.root.string);
b34976b6 5665 return FALSE;
3376eaf5
KK
5666 }
5667 }
5668
8e45593f 5669 if (old_got_type != got_type)
3376eaf5
KK
5670 {
5671 if (h != NULL)
8e45593f 5672 sh_elf_hash_entry (h)->got_type = got_type;
3376eaf5 5673 else
8e45593f 5674 sh_elf_local_got_type (abfd) [r_symndx] = got_type;
37c644f2 5675 }
3376eaf5
KK
5676
5677 break;
5678
5679 case R_SH_TLS_LD_32:
5680 sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
37c644f2
AO
5681 break;
5682
8e45593f
NC
5683 case R_SH_FUNCDESC:
5684 case R_SH_GOTOFFFUNCDESC:
5685 case R_SH_GOTOFFFUNCDESC20:
5686 if (rel->r_addend)
5687 {
4eca0228 5688 _bfd_error_handler
871b3ab2 5689 (_("%pB: Function descriptor relocation with non-zero addend"),
8e45593f
NC
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);
8e45593f
NC
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 {
0e1862bb 5714 if (!bfd_link_pic (info))
8e45593f
NC
5715 htab->srofixup->size += 4;
5716 else
ce558b89 5717 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f
NC
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)
4eca0228 5732 _bfd_error_handler
695344c0 5733 /* xgettext:c-format */
871b3ab2 5734 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
8e45593f
NC
5735 abfd, h->root.root.string);
5736 else
4eca0228 5737 _bfd_error_handler
695344c0 5738 /* xgettext:c-format */
871b3ab2 5739 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
8e45593f
NC
5740 abfd, h->root.root.string);
5741 }
5742 }
5743 break;
5744
fbca6ad9 5745 case R_SH_GOTPLT32:
fbca6ad9
AO
5746 /* If this is a local symbol, we resolve it directly without
5747 creating a procedure linkage table entry. */
5748
5749 if (h == NULL
f5385ebf 5750 || h->forced_local
0e1862bb 5751 || ! bfd_link_pic (info)
fbca6ad9 5752 || info->symbolic
067653c5 5753 || h->dynindx == -1)
fbca6ad9
AO
5754 goto force_got;
5755
f5385ebf 5756 h->needs_plt = 1;
067653c5 5757 h->plt.refcount += 1;
4989d792 5758 ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
fbca6ad9
AO
5759
5760 break;
5761
37c644f2
AO
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
f5385ebf 5775 if (h->forced_local)
37c644f2
AO
5776 break;
5777
f5385ebf 5778 h->needs_plt = 1;
067653c5 5779 h->plt.refcount += 1;
37c644f2
AO
5780 break;
5781
5782 case R_SH_DIR32:
5783 case R_SH_REL32:
0e1862bb 5784 if (h != NULL && ! bfd_link_pic (info))
067653c5 5785 {
f5385ebf 5786 h->non_got_ref = 1;
067653c5
AM
5787 h->plt.refcount += 1;
5788 }
37c644f2
AO
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
067653c5
AM
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. */
0e1862bb 5809 if ((bfd_link_pic (info)
067653c5 5810 && (sec->flags & SEC_ALLOC) != 0
3376eaf5 5811 && (r_type != R_SH_REL32
067653c5
AM
5812 || (h != NULL
5813 && (! info->symbolic
5814 || h->root.type == bfd_link_hash_defweak
f5385ebf 5815 || !h->def_regular))))
0e1862bb 5816 || (! bfd_link_pic (info)
067653c5
AM
5817 && (sec->flags & SEC_ALLOC) != 0
5818 && h != NULL
5819 && (h->root.type == bfd_link_hash_defweak
f5385ebf 5820 || !h->def_regular)))
37c644f2 5821 {
3bf083ed
AM
5822 struct elf_dyn_relocs *p;
5823 struct elf_dyn_relocs **head;
067653c5 5824
2293c499
AM
5825 if (htab->root.dynobj == NULL)
5826 htab->root.dynobj = abfd;
067653c5 5827
37c644f2
AO
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 {
83bac4b0
NC
5833 sreloc = _bfd_elf_make_dynamic_reloc_section
5834 (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE);
37c644f2 5835
37c644f2 5836 if (sreloc == NULL)
83bac4b0 5837 return FALSE;
37c644f2
AO
5838 }
5839
067653c5
AM
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
37c644f2 5845 {
87d72d41 5846 /* Track dynamic relocs needed for local syms too. */
067653c5 5847 asection *s;
6edfbbad 5848 void *vpp;
87d72d41 5849 Elf_Internal_Sym *isym;
37c644f2 5850
87d72d41
AM
5851 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5852 abfd, r_symndx);
5853 if (isym == NULL)
b34976b6 5854 return FALSE;
37c644f2 5855
87d72d41
AM
5856 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5857 if (s == NULL)
5858 s = sec;
5859
6edfbbad 5860 vpp = &elf_section_data (s)->local_dynrel;
3bf083ed 5861 head = (struct elf_dyn_relocs **) vpp;
067653c5 5862 }
37c644f2 5863
067653c5
AM
5864 p = *head;
5865 if (p == NULL || p->sec != sec)
5866 {
986f0783 5867 size_t amt = sizeof (*p);
2293c499 5868 p = bfd_alloc (htab->root.dynobj, amt);
37c644f2 5869 if (p == NULL)
b34976b6 5870 return FALSE;
067653c5
AM
5871 p->next = *head;
5872 *head = p;
5873 p->sec = sec;
5874 p->count = 0;
5875 p->pc_count = 0;
37c644f2 5876 }
067653c5
AM
5877
5878 p->count += 1;
211dc24b 5879 if (r_type == R_SH_REL32)
067653c5 5880 p->pc_count += 1;
37c644f2
AO
5881 }
5882
8e45593f
NC
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. */
0e1862bb 5886 if (htab->fdpic_p && !bfd_link_pic (info)
8e45593f
NC
5887 && r_type == R_SH_DIR32
5888 && (sec->flags & SEC_ALLOC) != 0)
5889 htab->srofixup->size += 4;
37c644f2 5890 break;
3376eaf5
KK
5891
5892 case R_SH_TLS_LE_32:
3cbc1e5e 5893 if (bfd_link_dll (info))
3376eaf5 5894 {
4eca0228 5895 _bfd_error_handler
871b3ab2 5896 (_("%pB: TLS local exec code cannot be linked into shared objects"),
d003868e 5897 abfd);
b34976b6 5898 return FALSE;
3376eaf5
KK
5899 }
5900
267fb3c1 5901 break;
3376eaf5 5902
3376eaf5 5903 case R_SH_TLS_LDO_32:
267fb3c1 5904 /* Nothing to do. */
3376eaf5
KK
5905 break;
5906
5907 default:
5908 break;
435b1e90 5909 }
252b5132 5910 }
435b1e90 5911
b34976b6 5912 return TRUE;
252b5132
RH
5913}
5914
fbca6ad9 5915#ifndef sh_elf_set_mach_from_flags
f6f9408f
JR
5916static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
5917
b34976b6 5918static bfd_boolean
09fd220b 5919sh_elf_set_mach_from_flags (bfd *abfd)
d4845d57 5920{
f6f9408f
JR
5921 flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
5922
f461bbd8 5923 if (flags >= ARRAY_SIZE (sh_ef_bfd_table))
f6f9408f
JR
5924 return FALSE;
5925
5926 if (sh_ef_bfd_table[flags] == 0)
5927 return FALSE;
68ffbac6 5928
f6f9408f 5929 bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
d4845d57 5930
b34976b6 5931 return TRUE;
d4845d57 5932}
f6f9408f
JR
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{
4195f552 5943 int i = ARRAY_SIZE (sh_ef_bfd_table) - 1;
68ffbac6 5944
f6f9408f
JR
5945 for (; i>0; i--)
5946 if (sh_ef_bfd_table[i] == mach)
5947 return i;
68ffbac6 5948
f6f9408f
JR
5949 /* shouldn't get here */
5950 BFD_FAIL();
5951
5952 return -1;
5953}
fbca6ad9 5954#endif /* not sh_elf_set_mach_from_flags */
d4845d57 5955
fbca6ad9 5956#ifndef sh_elf_copy_private_data
d4845d57 5957/* Copy backend specific data from one object module to another */
435b1e90 5958
b34976b6 5959static bfd_boolean
09fd220b 5960sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
d4845d57 5961{
0ffa91dd
NC
5962 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
5963 return TRUE;
5964
e2349352
L
5965 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
5966 return FALSE;
5967
5968 return sh_elf_set_mach_from_flags (obfd);
d4845d57 5969}
fbca6ad9 5970#endif /* not sh_elf_copy_private_data */
d4845d57 5971
fbca6ad9 5972#ifndef sh_elf_merge_private_data
d4845d57 5973
f6f9408f
JR
5974/* This function returns the ELF architecture number that
5975 corresponds to the given arch_sh* flags. */
85fbca6a 5976
f6f9408f
JR
5977int
5978sh_find_elf_flags (unsigned int arch_set)
d4845d57 5979{
85fbca6a 5980 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
f6f9408f 5981 unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
d4845d57 5982
f6f9408f
JR
5983 return sh_elf_get_flags_from_mach (bfd_mach);
5984}
f6f9408f 5985
1047201f
AM
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
50e03d47 5994sh_merge_bfd_arch (bfd *ibfd, struct bfd_link_info *info)
1047201f 5995{
50e03d47 5996 bfd *obfd = info->output_bfd;
1047201f
AM
5997 unsigned int old_arch, new_arch, merged_arch;
5998
50e03d47 5999 if (! _bfd_generic_verify_endian_match (ibfd, info))
1047201f
AM
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
695344c0 6010 /* xgettext:c-format */
871b3ab2 6011 (_("%pB: uses %s instructions while previous modules "
695344c0 6012 "use %s instructions"),
1047201f
AM
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
695344c0
NC
6022 /* xgettext:c-format */
6023 (_("internal error: merge of architecture '%s' with "
6024 "architecture '%s' produced unknown architecture"),
1047201f
AM
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
f6f9408f
JR
6037/* This routine initialises the elf flags when required and
6038 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
d4845d57 6039
f6f9408f 6040static bfd_boolean
50e03d47 6041sh_elf_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
f6f9408f 6042{
50e03d47 6043 bfd *obfd = info->output_bfd;
85fbca6a 6044
0ffa91dd 6045 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
b34976b6 6046 return TRUE;
d4845d57
JR
6047
6048 if (! elf_flags_init (obfd))
6049 {
a39b79b9 6050 /* This happens when ld starts out with a 'blank' output file. */
b34976b6 6051 elf_flags_init (obfd) = TRUE;
8e45593f 6052 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
f6f9408f 6053 sh_elf_set_mach_from_flags (obfd);
8e45593f 6054 if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC)
fbedb42d 6055 elf_elfheader (obfd)->e_flags &= ~EF_SH_PIC;
d4845d57 6056 }
d4845d57 6057
50e03d47 6058 if (! sh_merge_bfd_arch (ibfd, info))
1d70c7fb 6059 {
871b3ab2 6060 _bfd_error_handler (_("%pB: uses instructions which are incompatible "
695344c0 6061 "with instructions used in previous modules"),
d003868e 6062 ibfd);
1d70c7fb
AO
6063 bfd_set_error (bfd_error_bad_value);
6064 return FALSE;
6065 }
f6f9408f 6066
8e45593f
NC
6067 elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK;
6068 elf_elfheader (obfd)->e_flags |=
f6f9408f 6069 sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
8e45593f
NC
6070
6071 if (fdpic_object_p (ibfd) != fdpic_object_p (obfd))
6072 {
871b3ab2 6073 _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"),
8e45593f
NC
6074 ibfd);
6075 bfd_set_error (bfd_error_bad_value);
6076 return FALSE;
6077 }
6078
f6f9408f 6079 return TRUE;
d4845d57 6080}
fbca6ad9 6081#endif /* not sh_elf_merge_private_data */
d4845d57 6082
3376eaf5
KK
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
b34976b6 6087static bfd_boolean
09fd220b 6088sh_elf_object_p (bfd *abfd)
3376eaf5 6089{
8e45593f
NC
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));
3376eaf5
KK
6095}
6096
37c644f2
AO
6097/* Finish up dynamic symbol handling. We set the contents of various
6098 dynamic sections here. */
6099
b34976b6 6100static bfd_boolean
09fd220b
KK
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)
37c644f2 6104{
067653c5 6105 struct elf_sh_link_hash_table *htab;
37c644f2 6106
067653c5 6107 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
6108 if (htab == NULL)
6109 return FALSE;
37c644f2
AO
6110
6111 if (h->plt.offset != (bfd_vma) -1)
6112 {
6113 asection *splt;
8e45593f
NC
6114 asection *sgotplt;
6115 asection *srelplt;
37c644f2
AO
6116
6117 bfd_vma plt_index;
6118 bfd_vma got_offset;
6119 Elf_Internal_Rela rel;
947216bf 6120 bfd_byte *loc;
8e45593f 6121 const struct elf_sh_plt_info *plt_info;
37c644f2
AO
6122
6123 /* This symbol has an entry in the procedure linkage table. Set
6124 it up. */
6125
6126 BFD_ASSERT (h->dynindx != -1);
6127
ce558b89
AM
6128 splt = htab->root.splt;
6129 sgotplt = htab->root.sgotplt;
6130 srelplt = htab->root.srelplt;
8e45593f 6131 BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL);
37c644f2
AO
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. */
55e6e397 6137 plt_index = get_plt_index (htab->plt_info, h->plt.offset);
37c644f2 6138
8e45593f
NC
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
37c644f2 6143 /* Get the offset into the .got table of the entry that
8e45593f
NC
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;
37c644f2 6154
fbca6ad9 6155#ifdef GOT_BIAS
0e1862bb 6156 if (bfd_link_pic (info))
c8614e8e 6157 got_offset -= GOT_BIAS;
fbca6ad9
AO
6158#endif
6159
37c644f2 6160 /* Fill in the entry in the procedure linkage table. */
55e6e397 6161 memcpy (splt->contents + h->plt.offset,
8e45593f
NC
6162 plt_info->symbol_entry,
6163 plt_info->symbol_entry_size);
55e6e397 6164
0e1862bb 6165 if (bfd_link_pic (info) || htab->fdpic_p)
8e45593f
NC
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 }
55e6e397 6182 else
37c644f2 6183 {
8e45593f
NC
6184 BFD_ASSERT (!plt_info->symbol_fields.got20);
6185
55e6e397 6186 install_plt_field (output_bfd, FALSE,
8e45593f
NC
6187 (sgotplt->output_section->vma
6188 + sgotplt->output_offset
fbca6ad9 6189 + got_offset),
55e6e397
RS
6190 (splt->contents
6191 + h->plt.offset
8e45593f 6192 + plt_info->symbol_fields.got_entry));
55e6e397 6193 if (htab->vxworks_p)
37c644f2 6194 {
55e6e397
RS
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
8e45593f
NC
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);
55e6e397
RS
6210 if (plt_index < reachable_plts)
6211 distance = -(h->plt.offset
8e45593f 6212 + plt_info->symbol_fields.plt);
55e6e397
RS
6213 else
6214 distance = -(((plt_index - reachable_plts) % plts_per_4k + 1)
8e45593f 6215 * plt_info->symbol_entry_size);
55e6e397
RS
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
8e45593f 6222 + plt_info->symbol_fields.plt));
37c644f2 6223 }
55e6e397
RS
6224 else
6225 install_plt_field (output_bfd, TRUE,
6226 splt->output_section->vma + splt->output_offset,
6227 (splt->contents
6228 + h->plt.offset
8e45593f 6229 + plt_info->symbol_fields.plt));
37c644f2
AO
6230 }
6231
8e45593f 6232 /* Make got_offset relative to the start of .got.plt. */
fbca6ad9 6233#ifdef GOT_BIAS
0e1862bb 6234 if (bfd_link_pic (info))
c8614e8e 6235 got_offset += GOT_BIAS;
fbca6ad9 6236#endif
8e45593f
NC
6237 if (htab->fdpic_p)
6238 got_offset = plt_index * 8;
fbca6ad9 6239
8e45593f
NC
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));
37c644f2
AO
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
8e45593f
NC
6252 + plt_info->symbol_resolve_offset),
6253 sgotplt->contents + got_offset);
6254 if (htab->fdpic_p)
6255 bfd_put_32 (output_bfd,
ce558b89 6256 sh_elf_osec_to_segment (output_bfd, splt->output_section),
8e45593f 6257 sgotplt->contents + got_offset + 4);
37c644f2
AO
6258
6259 /* Fill in the entry in the .rela.plt section. */
8e45593f
NC
6260 rel.r_offset = (sgotplt->output_section->vma
6261 + sgotplt->output_offset
37c644f2 6262 + got_offset);
8e45593f
NC
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);
37c644f2 6267 rel.r_addend = 0;
fbca6ad9
AO
6268#ifdef GOT_BIAS
6269 rel.r_addend = GOT_BIAS;
6270#endif
8e45593f 6271 loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
947216bf 6272 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2 6273
0e1862bb 6274 if (htab->vxworks_p && !bfd_link_pic (info))
55e6e397
RS
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. */
ce558b89
AM
6283 rel.r_offset = (splt->output_section->vma
6284 + splt->output_offset
55e6e397 6285 + h->plt.offset
8e45593f 6286 + plt_info->symbol_fields.got_entry);
55e6e397
RS
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. */
8e45593f
NC
6294 rel.r_offset = (sgotplt->output_section->vma
6295 + sgotplt->output_offset
55e6e397
RS
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
f5385ebf 6302 if (!h->def_regular)
37c644f2
AO
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
3376eaf5 6310 if (h->got.offset != (bfd_vma) -1
8e45593f
NC
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)
37c644f2
AO
6314 {
6315 asection *sgot;
8e45593f 6316 asection *srelgot;
37c644f2 6317 Elf_Internal_Rela rel;
947216bf 6318 bfd_byte *loc;
37c644f2
AO
6319
6320 /* This symbol has an entry in the global offset table. Set it
6321 up. */
6322
ce558b89
AM
6323 sgot = htab->root.sgot;
6324 srelgot = htab->root.srelgot;
8e45593f 6325 BFD_ASSERT (sgot != NULL && srelgot != NULL);
37c644f2
AO
6326
6327 rel.r_offset = (sgot->output_section->vma
6328 + sgot->output_offset
dc810e39 6329 + (h->got.offset &~ (bfd_vma) 1));
37c644f2 6330
067653c5
AM
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.
37c644f2
AO
6334 The entry in the global offset table will already have been
6335 initialized in the relocate_section function. */
0e1862bb 6336 if (bfd_link_pic (info)
3d85aebe 6337 && SYMBOL_REFERENCES_LOCAL (info, h))
37c644f2 6338 {
8e45593f
NC
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 }
37c644f2
AO
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
8e45593f
NC
6364 loc = srelgot->contents;
6365 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
947216bf 6366 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2
AO
6367 }
6368
f5385ebf 6369 if (h->needs_copy)
37c644f2
AO
6370 {
6371 asection *s;
6372 Elf_Internal_Rela rel;
947216bf 6373 bfd_byte *loc;
37c644f2
AO
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
3d4d4302 6381 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
37c644f2
AO
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;
947216bf
AM
6389 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
6390 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2
AO
6391 }
6392
55e6e397
RS
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. */
9637f6ef 6396 if (h == htab->root.hdynamic
55e6e397 6397 || (!htab->vxworks_p && h == htab->root.hgot))
37c644f2
AO
6398 sym->st_shndx = SHN_ABS;
6399
b34976b6 6400 return TRUE;
37c644f2
AO
6401}
6402
6403/* Finish up the dynamic sections. */
6404
b34976b6 6405static bfd_boolean
09fd220b 6406sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
37c644f2 6407{
067653c5 6408 struct elf_sh_link_hash_table *htab;
8e45593f 6409 asection *sgotplt;
37c644f2
AO
6410 asection *sdyn;
6411
067653c5 6412 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
6413 if (htab == NULL)
6414 return FALSE;
6415
ce558b89 6416 sgotplt = htab->root.sgotplt;
3d4d4302 6417 sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic");
37c644f2 6418
067653c5 6419 if (htab->root.dynamic_sections_created)
37c644f2
AO
6420 {
6421 asection *splt;
6422 Elf32_External_Dyn *dyncon, *dynconend;
6423
8e45593f 6424 BFD_ASSERT (sgotplt != NULL && sdyn != NULL);
37c644f2
AO
6425
6426 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 6427 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
37c644f2
AO
6428 for (; dyncon < dynconend; dyncon++)
6429 {
6430 Elf_Internal_Dyn dyn;
37c644f2
AO
6431 asection *s;
6432
2293c499 6433 bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
37c644f2
AO
6434
6435 switch (dyn.d_tag)
6436 {
6437 default:
7a2b07ff
NS
6438 if (htab->vxworks_p
6439 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
6440 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
37c644f2
AO
6441 break;
6442
6443 case DT_PLTGOT:
8e45593f
NC
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;
37c644f2
AO
6450
6451 case DT_JMPREL:
ce558b89 6452 s = htab->root.srelplt->output_section;
37c644f2
AO
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:
ce558b89 6459 s = htab->root.srelplt->output_section;
37c644f2 6460 BFD_ASSERT (s != NULL);
eea6121a 6461 dyn.d_un.d_val = s->size;
37c644f2
AO
6462 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6463 break;
37c644f2
AO
6464 }
6465 }
6466
6467 /* Fill in the first entry in the procedure linkage table. */
ce558b89 6468 splt = htab->root.splt;
55e6e397 6469 if (splt && splt->size > 0 && htab->plt_info->plt0_entry)
37c644f2 6470 {
55e6e397
RS
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,
8e45593f
NC
6479 (sgotplt->output_section->vma
6480 + sgotplt->output_offset
55e6e397
RS
6481 + (i * 4)),
6482 (splt->contents
6483 + htab->plt_info->plt0_got_fields[i]));
6484
6485 if (htab->vxworks_p)
37c644f2 6486 {
55e6e397
RS
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)
37c644f2 6507 {
55e6e397
RS
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);
37c644f2 6521 }
37c644f2
AO
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. */
8e45593f 6531 if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p)
37c644f2
AO
6532 {
6533 if (sdyn == NULL)
8e45593f 6534 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents);
37c644f2
AO
6535 else
6536 bfd_put_32 (output_bfd,
6537 sdyn->output_section->vma + sdyn->output_offset,
8e45593f
NC
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 }
37c644f2 6542
8e45593f
NC
6543 if (sgotplt && sgotplt->size > 0)
6544 elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4;
68ffbac6 6545
8e45593f
NC
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);
067653c5 6558 }
37c644f2 6559
8e45593f
NC
6560 if (htab->srelfuncdesc)
6561 BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela)
6562 == htab->srelfuncdesc->size);
6563
ce558b89
AM
6564 if (htab->root.srelgot)
6565 BFD_ASSERT (htab->root.srelgot->reloc_count * sizeof (Elf32_External_Rela)
6566 == htab->root.srelgot->size);
8e45593f 6567
b34976b6 6568 return TRUE;
37c644f2
AO
6569}
6570
99e4ae17 6571static enum elf_reloc_type_class
7e612e98
AM
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)
99e4ae17 6575{
f51e552e 6576 switch ((int) ELF32_R_TYPE (rela->r_info))
99e4ae17
AJ
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
85fbca6a 6589#if !defined SH_TARGET_ALREADY_DEFINED
571fe01f 6590/* Support for Linux core dump NOTE sections. */
85fbca6a 6591
b34976b6 6592static bfd_boolean
09fd220b 6593elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2bc3c89a
AM
6594{
6595 int offset;
eea6121a 6596 unsigned int size;
2bc3c89a
AM
6597
6598 switch (note->descsz)
6599 {
6600 default:
b34976b6 6601 return FALSE;
2bc3c89a
AM
6602
6603 case 168: /* Linux/SH */
6604 /* pr_cursig */
228e534f 6605 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2bc3c89a
AM
6606
6607 /* pr_pid */
228e534f 6608 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2bc3c89a
AM
6609
6610 /* pr_reg */
6611 offset = 72;
eea6121a 6612 size = 92;
2bc3c89a
AM
6613
6614 break;
6615 }
6616
6617 /* Make a ".reg/999" section. */
6618 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 6619 size, note->descpos + offset);
2bc3c89a
AM
6620}
6621
b34976b6 6622static bfd_boolean
09fd220b 6623elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2bc3c89a
AM
6624{
6625 switch (note->descsz)
6626 {
6627 default:
b34976b6 6628 return FALSE;
2bc3c89a
AM
6629
6630 case 124: /* Linux/SH elf_prpsinfo */
228e534f 6631 elf_tdata (abfd)->core->program
2bc3c89a 6632 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 6633 elf_tdata (abfd)->core->command
2bc3c89a
AM
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 {
228e534f 6642 char *command = elf_tdata (abfd)->core->command;
2bc3c89a
AM
6643 int n = strlen (command);
6644
6645 if (0 < n && command[n - 1] == ' ')
6646 command[n - 1] = '\0';
6647 }
6648
b34976b6 6649 return TRUE;
2bc3c89a 6650}
85fbca6a 6651#endif /* not SH_TARGET_ALREADY_DEFINED */
2bc3c89a 6652
68ffbac6 6653
1f1799d5
KK
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{
55e6e397
RS
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);
1f1799d5
KK
6665}
6666
8e45593f
NC
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
85fbca6a 6720#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590 6721#define TARGET_BIG_SYM sh_elf32_vec
252b5132 6722#define TARGET_BIG_NAME "elf32-sh"
6d00b590 6723#define TARGET_LITTLE_SYM sh_elf32_le_vec
252b5132 6724#define TARGET_LITTLE_NAME "elf32-shl"
85fbca6a
NC
6725#endif
6726
252b5132 6727#define ELF_ARCH bfd_arch_sh
ae95ffa6 6728#define ELF_TARGET_ID SH_ELF_DATA
252b5132 6729#define ELF_MACHINE_CODE EM_SH
d0facd1b
NC
6730#ifdef __QNXTARGET__
6731#define ELF_MAXPAGESIZE 0x1000
6732#else
6733#define ELF_MAXPAGESIZE 0x80
6734#endif
252b5132
RH
6735
6736#define elf_symbol_leading_char '_'
6737
6738#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
157090f7
AM
6739#define bfd_elf32_bfd_reloc_name_lookup \
6740 sh_elf_reloc_name_lookup
252b5132
RH
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
3376eaf5
KK
6746#define bfd_elf32_mkobject sh_elf_mkobject
6747#define elf_backend_object_p sh_elf_object_p
d4845d57
JR
6748#define bfd_elf32_bfd_copy_private_bfd_data \
6749 sh_elf_copy_private_data
875f7f69 6750#define bfd_elf32_bfd_merge_private_bfd_data \
d4845d57 6751 sh_elf_merge_private_data
252b5132 6752
067653c5 6753#define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
067653c5
AM
6754#define elf_backend_check_relocs sh_elf_check_relocs
6755#define elf_backend_copy_indirect_symbol \
6756 sh_elf_copy_indirect_symbol
37c644f2
AO
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
55e6e397
RS
6763#define elf_backend_always_size_sections \
6764 sh_elf_always_size_sections
37c644f2
AO
6765#define elf_backend_size_dynamic_sections \
6766 sh_elf_size_dynamic_sections
8e45593f 6767#define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
37c644f2
AO
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
99e4ae17 6772#define elf_backend_reloc_type_class sh_elf_reloc_type_class
1f1799d5 6773#define elf_backend_plt_sym_val sh_elf_plt_sym_val
8e45593f
NC
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
37c644f2 6780
04c3a755 6781#define elf_backend_stack_align 8
067653c5
AM
6782#define elf_backend_can_gc_sections 1
6783#define elf_backend_can_refcount 1
37c644f2
AO
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
64f52338 6788#define elf_backend_dtrel_excludes_plt 1
ed71e111 6789
a2f63b2e
MR
6790#define elf_backend_linux_prpsinfo32_ugid16 TRUE
6791
211dc24b 6792#if !defined SH_TARGET_ALREADY_DEFINED
2bc3c89a 6793
252b5132 6794#include "elf32-target.h"
ed71e111 6795
2bc3c89a
AM
6796/* NetBSD support. */
6797#undef TARGET_BIG_SYM
6d00b590 6798#define TARGET_BIG_SYM sh_elf32_nbsd_vec
2bc3c89a
AM
6799#undef TARGET_BIG_NAME
6800#define TARGET_BIG_NAME "elf32-sh-nbsd"
6801#undef TARGET_LITTLE_SYM
6d00b590 6802#define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec
2bc3c89a
AM
6803#undef TARGET_LITTLE_NAME
6804#define TARGET_LITTLE_NAME "elf32-shl-nbsd"
6805#undef ELF_MAXPAGESIZE
6806#define ELF_MAXPAGESIZE 0x10000
24718e3b 6807#undef ELF_COMMONPAGESIZE
2bc3c89a
AM
6808#undef elf_symbol_leading_char
6809#define elf_symbol_leading_char 0
571fe01f 6810#undef elf32_bed
2bc3c89a
AM
6811#define elf32_bed elf32_sh_nbsd_bed
6812
6813#include "elf32-target.h"
6814
2bc3c89a
AM
6815
6816/* Linux support. */
6817#undef TARGET_BIG_SYM
6d00b590 6818#define TARGET_BIG_SYM sh_elf32_linux_be_vec
2bc3c89a
AM
6819#undef TARGET_BIG_NAME
6820#define TARGET_BIG_NAME "elf32-shbig-linux"
6821#undef TARGET_LITTLE_SYM
6d00b590 6822#define TARGET_LITTLE_SYM sh_elf32_linux_vec
2bc3c89a
AM
6823#undef TARGET_LITTLE_NAME
6824#define TARGET_LITTLE_NAME "elf32-sh-linux"
24718e3b
L
6825#undef ELF_COMMONPAGESIZE
6826#define ELF_COMMONPAGESIZE 0x1000
2bc3c89a
AM
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
571fe01f 6832#undef elf32_bed
2bc3c89a
AM
6833#define elf32_bed elf32_sh_lin_bed
6834
6835#include "elf32-target.h"
6836
8e45593f
NC
6837
6838/* FDPIC support. */
6839#undef TARGET_BIG_SYM
6d00b590 6840#define TARGET_BIG_SYM sh_elf32_fdpic_be_vec
8e45593f
NC
6841#undef TARGET_BIG_NAME
6842#define TARGET_BIG_NAME "elf32-shbig-fdpic"
6843#undef TARGET_LITTLE_SYM
6d00b590 6844#define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec
8e45593f
NC
6845#undef TARGET_LITTLE_NAME
6846#define TARGET_LITTLE_NAME "elf32-sh-fdpic"
8e45593f
NC
6847
6848#undef elf32_bed
6849#define elf32_bed elf32_sh_fd_bed
6850
6851#include "elf32-target.h"
6852
8e45593f 6853/* VxWorks support. */
55e6e397 6854#undef TARGET_BIG_SYM
6d00b590 6855#define TARGET_BIG_SYM sh_elf32_vxworks_vec
55e6e397
RS
6856#undef TARGET_BIG_NAME
6857#define TARGET_BIG_NAME "elf32-sh-vxworks"
6858#undef TARGET_LITTLE_SYM
6d00b590 6859#define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec
55e6e397
RS
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
211dc24b 6888#endif /* not SH_TARGET_ALREADY_DEFINED */
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