sim: Don't overwrite stored errno in sim_syscall_multi
[deliverable/binutils-gdb.git] / bfd / elf32-sh.c
CommitLineData
ef230218 1/* Renesas / SuperH SH specific support for 32-bit ELF
219d1afa 2 Copyright (C) 1996-2018 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
RH
32
33static bfd_reloc_status_type sh_elf_reloc
09fd220b 34 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 35static bfd_reloc_status_type sh_elf_ignore_reloc
09fd220b 36 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
b34976b6 37static bfd_boolean sh_elf_relax_delete_bytes
09fd220b 38 (bfd *, asection *, bfd_vma, int);
b34976b6 39static bfd_boolean sh_elf_align_loads
09fd220b 40 (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *);
b34976b6 41static bfd_boolean sh_elf_swap_insns
09fd220b 42 (bfd *, asection *, void *, bfd_byte *, bfd_vma);
3376eaf5 43static int sh_elf_optimized_tls_reloc
09fd220b 44 (struct bfd_link_info *, int, int);
3376eaf5 45static bfd_vma dtpoff_base
09fd220b 46 (struct bfd_link_info *);
267fb3c1 47static bfd_vma tpoff
09fd220b 48 (struct bfd_link_info *, bfd_vma);
37c644f2
AO
49
50/* The name of the dynamic interpreter. This is put in the .interp
51 section. */
52
53#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
252b5132 54
8e45593f
NC
55/* FDPIC binaries have a default 128K stack. */
56#define DEFAULT_STACK_SIZE 0x20000
57
55e6e397 58#define MINUS_ONE ((bfd_vma) 0 - 1)
8e45593f
NC
59
60/* Decide whether a reference to a symbol can be resolved locally or
61 not. If the symbol is protected, we want the local address, but
62 its function descriptor must be assigned by the dynamic linker. */
63#define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
64 (SYMBOL_REFERENCES_LOCAL (INFO, H) \
65 || ! elf_hash_table (INFO)->dynamic_sections_created)
55e6e397
RS
66\f
67#define SH_PARTIAL32 TRUE
68#define SH_SRC_MASK32 0xffffffff
69#define SH_ELF_RELOC sh_elf_reloc
38b1a46c
NC
70static reloc_howto_type sh_elf_howto_table[] =
71{
55e6e397
RS
72#include "elf32-sh-relocs.h"
73};
fbca6ad9 74
55e6e397
RS
75#define SH_PARTIAL32 FALSE
76#define SH_SRC_MASK32 0
77#define SH_ELF_RELOC bfd_elf_generic_reloc
78static reloc_howto_type sh_vxworks_howto_table[] =
79{
80#include "elf32-sh-relocs.h"
81};
82\f
83/* Return true if OUTPUT_BFD is a VxWorks object. */
fbca6ad9 84
55e6e397 85static bfd_boolean
527a23b8 86vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED)
55e6e397 87{
211dc24b 88#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590
AM
89 extern const bfd_target sh_elf32_vxworks_le_vec;
90 extern const bfd_target sh_elf32_vxworks_vec;
fbca6ad9 91
6d00b590
AM
92 return (abfd->xvec == &sh_elf32_vxworks_le_vec
93 || abfd->xvec == &sh_elf32_vxworks_vec);
527a23b8
NC
94#else
95 return FALSE;
96#endif
55e6e397 97}
fbca6ad9 98
8e45593f
NC
99/* Return true if OUTPUT_BFD is an FDPIC object. */
100
101static bfd_boolean
102fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED)
103{
211dc24b 104#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590
AM
105 extern const bfd_target sh_elf32_fdpic_le_vec;
106 extern const bfd_target sh_elf32_fdpic_be_vec;
8e45593f 107
6d00b590
AM
108 return (abfd->xvec == &sh_elf32_fdpic_le_vec
109 || abfd->xvec == &sh_elf32_fdpic_be_vec);
8e45593f
NC
110#else
111 return FALSE;
112#endif
113}
114
55e6e397 115/* Return the howto table for ABFD. */
fbca6ad9 116
55e6e397
RS
117static reloc_howto_type *
118get_howto_table (bfd *abfd)
119{
120 if (vxworks_object_p (abfd))
121 return sh_vxworks_howto_table;
122 return sh_elf_howto_table;
123}
252b5132 124
015551fc 125static bfd_reloc_status_type
09fd220b
KK
126sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd,
127 asection *input_section, bfd_byte *contents,
128 bfd_vma addr, asection *symbol_section,
129 bfd_vma start, bfd_vma end)
015551fc
JR
130{
131 static bfd_vma last_addr;
00fdaf47 132 static asection *last_symbol_section;
015551fc
JR
133 bfd_byte *start_ptr, *ptr, *last_ptr;
134 int diff, cum_diff;
135 bfd_signed_vma x;
136 int insn;
137
138 /* Sanity check the address. */
07515404 139 if (addr > bfd_get_section_limit (input_bfd, input_section))
015551fc
JR
140 return bfd_reloc_outofrange;
141
142 /* We require the start and end relocations to be processed consecutively -
143 although we allow then to be processed forwards or backwards. */
144 if (! last_addr)
145 {
146 last_addr = addr;
147 last_symbol_section = symbol_section;
148 return bfd_reloc_ok;
149 }
150 if (last_addr != addr)
151 abort ();
152 last_addr = 0;
153
154 if (! symbol_section || last_symbol_section != symbol_section || end < start)
155 return bfd_reloc_outofrange;
156
157 /* Get the symbol_section contents. */
158 if (symbol_section != input_section)
159 {
160 if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
161 contents = elf_section_data (symbol_section)->this_hdr.contents;
162 else
163 {
eea6121a
AM
164 if (!bfd_malloc_and_get_section (input_bfd, symbol_section,
165 &contents))
015551fc 166 {
eea6121a
AM
167 if (contents != NULL)
168 free (contents);
015551fc
JR
169 return bfd_reloc_outofrange;
170 }
171 }
172 }
173#define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
174 start_ptr = contents + start;
175 for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
176 {
177 for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
178 ptr -= 2;
179 ptr += 2;
61ff1804 180 diff = (last_ptr - ptr) >> 1;
015551fc
JR
181 cum_diff += diff & 1;
182 cum_diff += diff;
183 }
184 /* Calculate the start / end values to load into rs / re minus four -
185 so that will cancel out the four we would otherwise have to add to
186 addr to get the value to subtract in order to get relative addressing. */
187 if (cum_diff >= 0)
188 {
189 start -= 4;
190 end = (ptr + cum_diff * 2) - contents;
191 }
192 else
193 {
194 bfd_vma start0 = start - 4;
195
a0fc8ba1 196 while (start0 && IS_PPI (contents + start0))
015551fc
JR
197 start0 -= 2;
198 start0 = start - 2 - ((start - start0) & 2);
199 start = start0 - cum_diff - 2;
200 end = start0;
201 }
202
6cdc0ccc
AM
203 if (contents != NULL
204 && elf_section_data (symbol_section)->this_hdr.contents != contents)
205 free (contents);
015551fc
JR
206
207 insn = bfd_get_16 (input_bfd, contents + addr);
208
209 x = (insn & 0x200 ? end : start) - addr;
210 if (input_section != symbol_section)
211 x += ((symbol_section->output_section->vma + symbol_section->output_offset)
212 - (input_section->output_section->vma
213 + input_section->output_offset));
214 x >>= 1;
215 if (x < -128 || x > 127)
216 return bfd_reloc_overflow;
217
61ff1804 218 x = (insn & ~0xff) | (x & 0xff);
dc810e39 219 bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
015551fc
JR
220
221 return bfd_reloc_ok;
222}
223
224/* This function is used for normal relocs. This used to be like the COFF
252b5132
RH
225 function, and is almost certainly incorrect for other ELF targets. */
226
227static bfd_reloc_status_type
09fd220b
KK
228sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
229 void *data, asection *input_section, bfd *output_bfd,
230 char **error_message ATTRIBUTE_UNUSED)
252b5132
RH
231{
232 unsigned long insn;
233 bfd_vma sym_value;
234 enum elf_sh_reloc_type r_type;
235 bfd_vma addr = reloc_entry->address;
236 bfd_byte *hit_data = addr + (bfd_byte *) data;
237
238 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
239
240 if (output_bfd != NULL)
241 {
242 /* Partial linking--do nothing. */
243 reloc_entry->address += input_section->output_offset;
244 return bfd_reloc_ok;
245 }
246
247 /* Almost all relocs have to do with relaxing. If any work must be
248 done for them, it has been done in sh_relax_section. */
015551fc 249 if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
252b5132
RH
250 return bfd_reloc_ok;
251
252 if (symbol_in != NULL
253 && bfd_is_und_section (symbol_in->section))
254 return bfd_reloc_undefined;
255
cd21f5da 256 /* PR 17512: file: 9891ca98. */
6346d5ca
AM
257 if (addr * bfd_octets_per_byte (abfd) + bfd_get_reloc_size (reloc_entry->howto)
258 > bfd_get_section_limit_octets (abfd, input_section))
cd21f5da
NC
259 return bfd_reloc_outofrange;
260
252b5132 261 if (bfd_is_com_section (symbol_in->section))
435b1e90
KH
262 sym_value = 0;
263 else
252b5132
RH
264 sym_value = (symbol_in->value +
265 symbol_in->section->output_section->vma +
266 symbol_in->section->output_offset);
267
268 switch (r_type)
269 {
270 case R_SH_DIR32:
271 insn = bfd_get_32 (abfd, hit_data);
272 insn += sym_value + reloc_entry->addend;
dc810e39 273 bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
252b5132
RH
274 break;
275 case R_SH_IND12W:
276 insn = bfd_get_16 (abfd, hit_data);
277 sym_value += reloc_entry->addend;
278 sym_value -= (input_section->output_section->vma
279 + input_section->output_offset
280 + addr
281 + 4);
282 sym_value += (insn & 0xfff) << 1;
283 if (insn & 0x800)
284 sym_value -= 0x1000;
285 insn = (insn & 0xf000) | (sym_value & 0xfff);
dc810e39 286 bfd_put_16 (abfd, (bfd_vma) insn, hit_data);
252b5132
RH
287 if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
288 return bfd_reloc_overflow;
289 break;
290 default:
291 abort ();
292 break;
293 }
294
295 return bfd_reloc_ok;
296}
297
298/* This function is used for relocs which are only used for relaxing,
299 which the linker should otherwise ignore. */
300
301static bfd_reloc_status_type
09fd220b
KK
302sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
303 asymbol *symbol ATTRIBUTE_UNUSED,
304 void *data ATTRIBUTE_UNUSED, asection *input_section,
305 bfd *output_bfd,
306 char **error_message ATTRIBUTE_UNUSED)
252b5132
RH
307{
308 if (output_bfd != NULL)
309 reloc_entry->address += input_section->output_offset;
310 return bfd_reloc_ok;
311}
312
313/* This structure is used to map BFD reloc codes to SH ELF relocs. */
314
38b1a46c
NC
315struct elf_reloc_map
316{
252b5132
RH
317 bfd_reloc_code_real_type bfd_reloc_val;
318 unsigned char elf_reloc_val;
319};
320
321/* An array mapping BFD reloc codes to SH ELF relocs. */
322
38b1a46c
NC
323static const struct elf_reloc_map sh_reloc_map[] =
324{
252b5132
RH
325 { BFD_RELOC_NONE, R_SH_NONE },
326 { BFD_RELOC_32, R_SH_DIR32 },
d38eb334
DD
327 { BFD_RELOC_16, R_SH_DIR16 },
328 { BFD_RELOC_8, R_SH_DIR8 },
252b5132
RH
329 { BFD_RELOC_CTOR, R_SH_DIR32 },
330 { BFD_RELOC_32_PCREL, R_SH_REL32 },
331 { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
332 { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
333 { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
334 { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
335 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
336 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
337 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
338 { BFD_RELOC_SH_USES, R_SH_USES },
339 { BFD_RELOC_SH_COUNT, R_SH_COUNT },
340 { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
341 { BFD_RELOC_SH_CODE, R_SH_CODE },
342 { BFD_RELOC_SH_DATA, R_SH_DATA },
343 { BFD_RELOC_SH_LABEL, R_SH_LABEL },
344 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
345 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
015551fc
JR
346 { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
347 { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
3376eaf5
KK
348 { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 },
349 { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 },
350 { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 },
351 { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 },
352 { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 },
353 { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 },
354 { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 },
355 { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 },
37c644f2
AO
356 { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
357 { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
358 { BFD_RELOC_SH_COPY, R_SH_COPY },
359 { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT },
360 { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT },
361 { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
362 { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
363 { BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
fbca6ad9 364 { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
8e45593f
NC
365 { BFD_RELOC_SH_GOT20, R_SH_GOT20 },
366 { BFD_RELOC_SH_GOTOFF20, R_SH_GOTOFF20 },
367 { BFD_RELOC_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC },
368 { BFD_RELOC_SH_GOTFUNCDESC20, R_SH_GOTFUNCDESC20 },
369 { BFD_RELOC_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC },
370 { BFD_RELOC_SH_GOTOFFFUNCDESC20, R_SH_GOTOFFFUNCDESC20 },
371 { BFD_RELOC_SH_FUNCDESC, R_SH_FUNCDESC },
252b5132
RH
372};
373
374/* Given a BFD reloc code, return the howto structure for the
55e6e397 375 corresponding SH ELF reloc. */
252b5132
RH
376
377static reloc_howto_type *
55e6e397 378sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
252b5132
RH
379{
380 unsigned int i;
381
382 for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
383 {
384 if (sh_reloc_map[i].bfd_reloc_val == code)
55e6e397 385 return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val;
252b5132
RH
386 }
387
388 return NULL;
389}
390
157090f7
AM
391static reloc_howto_type *
392sh_elf_reloc_name_lookup (bfd *abfd, const char *r_name)
393{
394 unsigned int i;
395
396 if (vxworks_object_p (abfd))
397 {
398 for (i = 0;
399 i < (sizeof (sh_vxworks_howto_table)
400 / sizeof (sh_vxworks_howto_table[0]));
401 i++)
402 if (sh_vxworks_howto_table[i].name != NULL
403 && strcasecmp (sh_vxworks_howto_table[i].name, r_name) == 0)
404 return &sh_vxworks_howto_table[i];
405 }
406 else
407 {
408 for (i = 0;
409 i < (sizeof (sh_elf_howto_table)
410 / sizeof (sh_elf_howto_table[0]));
411 i++)
412 if (sh_elf_howto_table[i].name != NULL
413 && strcasecmp (sh_elf_howto_table[i].name, r_name) == 0)
414 return &sh_elf_howto_table[i];
415 }
416
417 return NULL;
418}
419
252b5132
RH
420/* Given an ELF reloc, fill in the howto field of a relent. */
421
f3185997 422static bfd_boolean
55e6e397 423sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
252b5132
RH
424{
425 unsigned int r;
426
427 r = ELF32_R_TYPE (dst->r_info);
428
cd21f5da
NC
429 if (r >= R_SH_max
430 || (r >= R_SH_FIRST_INVALID_RELOC && r <= R_SH_LAST_INVALID_RELOC)
431 || (r >= R_SH_FIRST_INVALID_RELOC_2 && r <= R_SH_LAST_INVALID_RELOC_2)
432 || (r >= R_SH_FIRST_INVALID_RELOC_3 && r <= R_SH_LAST_INVALID_RELOC_3)
433 || (r >= R_SH_FIRST_INVALID_RELOC_4 && r <= R_SH_LAST_INVALID_RELOC_4)
434 || (r >= R_SH_FIRST_INVALID_RELOC_5 && r <= R_SH_LAST_INVALID_RELOC_5)
435 || (r >= R_SH_FIRST_INVALID_RELOC_6 && r <= R_SH_LAST_INVALID_RELOC_6))
436 {
695344c0 437 /* xgettext:c-format */
0aa13fee 438 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4eca0228 439 abfd, r);
cd21f5da 440 bfd_set_error (bfd_error_bad_value);
f3185997 441 return FALSE;
cd21f5da 442 }
252b5132 443
55e6e397 444 cache_ptr->howto = get_howto_table (abfd) + r;
f3185997 445 return TRUE;
252b5132
RH
446}
447\f
448/* This function handles relaxing for SH ELF. See the corresponding
449 function in coff-sh.c for a description of what this does. FIXME:
450 There is a lot of duplication here between this code and the COFF
451 specific code. The format of relocs and symbols is wound deeply
452 into this code, but it would still be better if the duplication
453 could be eliminated somehow. Note in particular that although both
454 functions use symbols like R_SH_CODE, those symbols have different
455 values; in coff-sh.c they come from include/coff/sh.h, whereas here
456 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
457
b34976b6 458static bfd_boolean
09fd220b
KK
459sh_elf_relax_section (bfd *abfd, asection *sec,
460 struct bfd_link_info *link_info, bfd_boolean *again)
252b5132
RH
461{
462 Elf_Internal_Shdr *symtab_hdr;
463 Elf_Internal_Rela *internal_relocs;
b34976b6 464 bfd_boolean have_code;
252b5132
RH
465 Elf_Internal_Rela *irel, *irelend;
466 bfd_byte *contents = NULL;
6cdc0ccc 467 Elf_Internal_Sym *isymbuf = NULL;
252b5132 468
b34976b6 469 *again = FALSE;
252b5132 470
0e1862bb 471 if (bfd_link_relocatable (link_info)
252b5132
RH
472 || (sec->flags & SEC_RELOC) == 0
473 || sec->reloc_count == 0)
b34976b6 474 return TRUE;
252b5132 475
0ffa91dd 476 symtab_hdr = &elf_symtab_hdr (abfd);
252b5132 477
45d6a902 478 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 479 (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
252b5132
RH
480 link_info->keep_memory));
481 if (internal_relocs == NULL)
482 goto error_return;
252b5132 483
b34976b6 484 have_code = FALSE;
252b5132
RH
485
486 irelend = internal_relocs + sec->reloc_count;
487 for (irel = internal_relocs; irel < irelend; irel++)
488 {
489 bfd_vma laddr, paddr, symval;
490 unsigned short insn;
491 Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
492 bfd_signed_vma foff;
493
494 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
b34976b6 495 have_code = TRUE;
252b5132
RH
496
497 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
498 continue;
499
500 /* Get the section contents. */
501 if (contents == NULL)
502 {
503 if (elf_section_data (sec)->this_hdr.contents != NULL)
504 contents = elf_section_data (sec)->this_hdr.contents;
505 else
506 {
eea6121a 507 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
252b5132
RH
508 goto error_return;
509 }
510 }
511
512 /* The r_addend field of the R_SH_USES reloc will point us to
067653c5
AM
513 the register load. The 4 is because the r_addend field is
514 computed as though it were a jump offset, which are based
515 from 4 bytes after the jump instruction. */
252b5132 516 laddr = irel->r_offset + 4 + irel->r_addend;
eea6121a 517 if (laddr >= sec->size)
252b5132 518 {
695344c0 519 /* xgettext:c-format */
2dcf00ce
AM
520 _bfd_error_handler
521 (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES offset"),
522 abfd, (uint64_t) irel->r_offset);
252b5132
RH
523 continue;
524 }
525 insn = bfd_get_16 (abfd, contents + laddr);
526
527 /* If the instruction is not mov.l NN,rN, we don't know what to
067653c5 528 do. */
252b5132
RH
529 if ((insn & 0xf000) != 0xd000)
530 {
4eca0228 531 _bfd_error_handler
695344c0 532 /* xgettext:c-format */
2dcf00ce
AM
533 (_("%pB: %#" PRIx64 ": warning: "
534 "R_SH_USES points to unrecognized insn 0x%x"),
535 abfd, (uint64_t) irel->r_offset, insn);
252b5132
RH
536 continue;
537 }
538
539 /* Get the address from which the register is being loaded. The
99e4ae17
AJ
540 displacement in the mov.l instruction is quadrupled. It is a
541 displacement from four bytes after the movl instruction, but,
542 before adding in the PC address, two least significant bits
543 of the PC are cleared. We assume that the section is aligned
544 on a four byte boundary. */
252b5132
RH
545 paddr = insn & 0xff;
546 paddr *= 4;
dc810e39 547 paddr += (laddr + 4) &~ (bfd_vma) 3;
eea6121a 548 if (paddr >= sec->size)
252b5132 549 {
4eca0228 550 _bfd_error_handler
695344c0 551 /* xgettext:c-format */
2dcf00ce
AM
552 (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES load offset"),
553 abfd, (uint64_t) irel->r_offset);
252b5132
RH
554 continue;
555 }
556
557 /* Get the reloc for the address from which the register is
067653c5
AM
558 being loaded. This reloc will tell us which function is
559 actually being called. */
252b5132
RH
560 for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
561 if (irelfn->r_offset == paddr
562 && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
563 break;
564 if (irelfn >= irelend)
565 {
4eca0228 566 _bfd_error_handler
695344c0 567 /* xgettext:c-format */
2dcf00ce
AM
568 (_("%pB: %#" PRIx64 ": warning: could not find expected reloc"),
569 abfd, (uint64_t) paddr);
252b5132
RH
570 continue;
571 }
572
573 /* Read this BFD's symbols if we haven't done so already. */
6cdc0ccc 574 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
252b5132 575 {
6cdc0ccc
AM
576 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
577 if (isymbuf == NULL)
578 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
579 symtab_hdr->sh_info, 0,
580 NULL, NULL, NULL);
581 if (isymbuf == NULL)
582 goto error_return;
252b5132
RH
583 }
584
585 /* Get the value of the symbol referred to by the reloc. */
586 if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
587 {
9ad5cbcf 588 /* A local symbol. */
6cdc0ccc 589 Elf_Internal_Sym *isym;
252b5132 590
6cdc0ccc
AM
591 isym = isymbuf + ELF32_R_SYM (irelfn->r_info);
592 if (isym->st_shndx
d426c6b0 593 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
252b5132 594 {
4eca0228 595 _bfd_error_handler
695344c0 596 /* xgettext:c-format */
2dcf00ce
AM
597 (_("%pB: %#" PRIx64 ": warning: symbol in unexpected section"),
598 abfd, (uint64_t) paddr);
252b5132
RH
599 continue;
600 }
601
6cdc0ccc 602 symval = (isym->st_value
252b5132
RH
603 + sec->output_section->vma
604 + sec->output_offset);
605 }
606 else
607 {
608 unsigned long indx;
609 struct elf_link_hash_entry *h;
610
611 indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
612 h = elf_sym_hashes (abfd)[indx];
613 BFD_ASSERT (h != NULL);
614 if (h->root.type != bfd_link_hash_defined
615 && h->root.type != bfd_link_hash_defweak)
616 {
617 /* This appears to be a reference to an undefined
067653c5
AM
618 symbol. Just ignore it--it will be caught by the
619 regular reloc processing. */
252b5132
RH
620 continue;
621 }
622
623 symval = (h->root.u.def.value
624 + h->root.u.def.section->output_section->vma
625 + h->root.u.def.section->output_offset);
626 }
627
55e6e397
RS
628 if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
629 symval += bfd_get_32 (abfd, contents + paddr);
630 else
631 symval += irelfn->r_addend;
252b5132
RH
632
633 /* See if this function call can be shortened. */
634 foff = (symval
635 - (irel->r_offset
636 + sec->output_section->vma
637 + sec->output_offset
638 + 4));
f725025b
DD
639 /* A branch to an address beyond ours might be increased by an
640 .align that doesn't move when bytes behind us are deleted.
641 So, we add some slop in this calculation to allow for
642 that. */
643 if (foff < -0x1000 || foff >= 0x1000 - 8)
252b5132
RH
644 {
645 /* After all that work, we can't shorten this function call. */
646 continue;
647 }
648
649 /* Shorten the function call. */
650
651 /* For simplicity of coding, we are going to modify the section
652 contents, the section relocs, and the BFD symbol table. We
653 must tell the rest of the code not to free up this
654 information. It would be possible to instead create a table
655 of changes which have to be made, as is done in coff-mips.c;
656 that would be more work, but would require less memory when
657 the linker is run. */
658
659 elf_section_data (sec)->relocs = internal_relocs;
252b5132 660 elf_section_data (sec)->this_hdr.contents = contents;
6cdc0ccc 661 symtab_hdr->contents = (unsigned char *) isymbuf;
252b5132 662
8c784016 663 /* Replace the jmp/jsr with a bra/bsr. */
252b5132
RH
664
665 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
8c784016 666 replace the jmp/jsr with a bra/bsr. */
252b5132 667 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
bdfaef52
JR
668 /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
669 here, but that only checks if the symbol is an external symbol,
670 not if the symbol is in a different section. Besides, we need
671 a consistent meaning for the relocation, so we just assume here that
672 the value of the symbol is not available. */
0e71e495
BE
673
674 /* We can't fully resolve this yet, because the external
675 symbol value may be changed by future relaxing. We let
676 the final link phase handle it. */
8c784016
KK
677 if (bfd_get_16 (abfd, contents + irel->r_offset) & 0x0020)
678 bfd_put_16 (abfd, (bfd_vma) 0xa000, contents + irel->r_offset);
679 else
680 bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
0e71e495 681
bdfaef52 682 irel->r_addend = -4;
252b5132 683
f725025b
DD
684 /* When we calculated the symbol "value" we had an offset in the
685 DIR32's word in memory (we read and add it above). However,
686 the jsr we create does NOT have this offset encoded, so we
687 have to add it to the addend to preserve it. */
688 irel->r_addend += bfd_get_32 (abfd, contents + paddr);
689
252b5132 690 /* See if there is another R_SH_USES reloc referring to the same
067653c5 691 register load. */
252b5132
RH
692 for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
693 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
694 && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
695 break;
696 if (irelscan < irelend)
697 {
698 /* Some other function call depends upon this register load,
699 and we have not yet converted that function call.
700 Indeed, we may never be able to convert it. There is
701 nothing else we can do at this point. */
702 continue;
703 }
704
705 /* Look for a R_SH_COUNT reloc on the location where the
067653c5
AM
706 function address is stored. Do this before deleting any
707 bytes, to avoid confusion about the address. */
252b5132
RH
708 for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
709 if (irelcount->r_offset == paddr
710 && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
711 break;
712
713 /* Delete the register load. */
714 if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
715 goto error_return;
716
717 /* That will change things, so, just in case it permits some
067653c5
AM
718 other function call to come within range, we should relax
719 again. Note that this is not required, and it may be slow. */
b34976b6 720 *again = TRUE;
252b5132
RH
721
722 /* Now check whether we got a COUNT reloc. */
723 if (irelcount >= irelend)
724 {
4eca0228 725 _bfd_error_handler
695344c0 726 /* xgettext:c-format */
2dcf00ce
AM
727 (_("%pB: %#" PRIx64 ": warning: "
728 "could not find expected COUNT reloc"),
729 abfd, (uint64_t) paddr);
252b5132
RH
730 continue;
731 }
732
733 /* The number of uses is stored in the r_addend field. We've
067653c5 734 just deleted one. */
252b5132
RH
735 if (irelcount->r_addend == 0)
736 {
695344c0 737 /* xgettext:c-format */
2dcf00ce
AM
738 _bfd_error_handler (_("%pB: %#" PRIx64 ": warning: bad count"),
739 abfd, (uint64_t) paddr);
252b5132
RH
740 continue;
741 }
742
743 --irelcount->r_addend;
744
745 /* If there are no more uses, we can delete the address. Reload
067653c5
AM
746 the address from irelfn, in case it was changed by the
747 previous call to sh_elf_relax_delete_bytes. */
252b5132
RH
748 if (irelcount->r_addend == 0)
749 {
750 if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
751 goto error_return;
752 }
753
754 /* We've done all we can with that function call. */
755 }
756
757 /* Look for load and store instructions that we can align on four
758 byte boundaries. */
bdfaef52
JR
759 if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4
760 && have_code)
252b5132 761 {
b34976b6 762 bfd_boolean swapped;
252b5132
RH
763
764 /* Get the section contents. */
765 if (contents == NULL)
766 {
767 if (elf_section_data (sec)->this_hdr.contents != NULL)
768 contents = elf_section_data (sec)->this_hdr.contents;
769 else
770 {
eea6121a 771 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
252b5132
RH
772 goto error_return;
773 }
774 }
775
776 if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
777 &swapped))
778 goto error_return;
779
780 if (swapped)
781 {
782 elf_section_data (sec)->relocs = internal_relocs;
252b5132 783 elf_section_data (sec)->this_hdr.contents = contents;
6cdc0ccc 784 symtab_hdr->contents = (unsigned char *) isymbuf;
252b5132
RH
785 }
786 }
787
6cdc0ccc
AM
788 if (isymbuf != NULL
789 && symtab_hdr->contents != (unsigned char *) isymbuf)
252b5132
RH
790 {
791 if (! link_info->keep_memory)
6cdc0ccc 792 free (isymbuf);
252b5132
RH
793 else
794 {
6cdc0ccc
AM
795 /* Cache the symbols for elf_link_input_bfd. */
796 symtab_hdr->contents = (unsigned char *) isymbuf;
252b5132 797 }
9ad5cbcf
AM
798 }
799
6cdc0ccc
AM
800 if (contents != NULL
801 && elf_section_data (sec)->this_hdr.contents != contents)
252b5132
RH
802 {
803 if (! link_info->keep_memory)
6cdc0ccc
AM
804 free (contents);
805 else
252b5132 806 {
6cdc0ccc
AM
807 /* Cache the section contents for elf_link_input_bfd. */
808 elf_section_data (sec)->this_hdr.contents = contents;
252b5132 809 }
252b5132
RH
810 }
811
6cdc0ccc
AM
812 if (internal_relocs != NULL
813 && elf_section_data (sec)->relocs != internal_relocs)
814 free (internal_relocs);
815
b34976b6 816 return TRUE;
252b5132
RH
817
818 error_return:
6cdc0ccc
AM
819 if (isymbuf != NULL
820 && symtab_hdr->contents != (unsigned char *) isymbuf)
821 free (isymbuf);
822 if (contents != NULL
823 && elf_section_data (sec)->this_hdr.contents != contents)
824 free (contents);
825 if (internal_relocs != NULL
826 && elf_section_data (sec)->relocs != internal_relocs)
827 free (internal_relocs);
9ad5cbcf 828
b34976b6 829 return FALSE;
252b5132
RH
830}
831
832/* Delete some bytes from a section while relaxing. FIXME: There is a
833 lot of duplication between this function and sh_relax_delete_bytes
834 in coff-sh.c. */
835
b34976b6 836static bfd_boolean
09fd220b
KK
837sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr,
838 int count)
252b5132
RH
839{
840 Elf_Internal_Shdr *symtab_hdr;
9ad5cbcf 841 unsigned int sec_shndx;
252b5132
RH
842 bfd_byte *contents;
843 Elf_Internal_Rela *irel, *irelend;
844 Elf_Internal_Rela *irelalign;
845 bfd_vma toaddr;
6cdc0ccc 846 Elf_Internal_Sym *isymbuf, *isym, *isymend;
9ad5cbcf
AM
847 struct elf_link_hash_entry **sym_hashes;
848 struct elf_link_hash_entry **end_hashes;
849 unsigned int symcount;
252b5132
RH
850 asection *o;
851
0ffa91dd 852 symtab_hdr = &elf_symtab_hdr (abfd);
6cdc0ccc 853 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
9ad5cbcf
AM
854
855 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
252b5132
RH
856
857 contents = elf_section_data (sec)->this_hdr.contents;
858
de194d85 859 /* The deletion must stop at the next ALIGN reloc for an alignment
252b5132
RH
860 power larger than the number of bytes we are deleting. */
861
862 irelalign = NULL;
eea6121a 863 toaddr = sec->size;
252b5132
RH
864
865 irel = elf_section_data (sec)->relocs;
866 irelend = irel + sec->reloc_count;
867 for (; irel < irelend; irel++)
868 {
869 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
870 && irel->r_offset > addr
871 && count < (1 << irel->r_addend))
872 {
873 irelalign = irel;
874 toaddr = irel->r_offset;
875 break;
876 }
877 }
878
879 /* Actually delete the bytes. */
dc810e39
AM
880 memmove (contents + addr, contents + addr + count,
881 (size_t) (toaddr - addr - count));
252b5132 882 if (irelalign == NULL)
eea6121a 883 sec->size -= count;
252b5132
RH
884 else
885 {
886 int i;
887
888#define NOP_OPCODE (0x0009)
889
890 BFD_ASSERT ((count & 1) == 0);
891 for (i = 0; i < count; i += 2)
dc810e39 892 bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
252b5132
RH
893 }
894
895 /* Adjust all the relocs. */
896 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
897 {
898 bfd_vma nraddr, stop;
899 bfd_vma start = 0;
900 int insn = 0;
252b5132
RH
901 int off, adjust, oinsn;
902 bfd_signed_vma voff = 0;
b34976b6 903 bfd_boolean overflow;
252b5132
RH
904
905 /* Get the new reloc address. */
906 nraddr = irel->r_offset;
907 if ((irel->r_offset > addr
908 && irel->r_offset < toaddr)
909 || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
910 && irel->r_offset == toaddr))
911 nraddr -= count;
912
913 /* See if this reloc was for the bytes we have deleted, in which
914 case we no longer care about it. Don't delete relocs which
915 represent addresses, though. */
916 if (irel->r_offset >= addr
917 && irel->r_offset < addr + count
918 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
919 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
920 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
921 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
922 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
923 (int) R_SH_NONE);
924
925 /* If this is a PC relative reloc, see if the range it covers
067653c5 926 includes the bytes we have deleted. */
252b5132
RH
927 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
928 {
929 default:
930 break;
931
932 case R_SH_DIR8WPN:
933 case R_SH_IND12W:
934 case R_SH_DIR8WPZ:
935 case R_SH_DIR8WPL:
936 start = irel->r_offset;
937 insn = bfd_get_16 (abfd, contents + nraddr);
938 break;
939 }
940
941 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
942 {
943 default:
944 start = stop = addr;
945 break;
946
947 case R_SH_DIR32:
948 /* If this reloc is against a symbol defined in this
067653c5
AM
949 section, and the symbol will not be adjusted below, we
950 must check the addend to see it will put the value in
951 range to be adjusted, and hence must be changed. */
252b5132
RH
952 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
953 {
6cdc0ccc
AM
954 isym = isymbuf + ELF32_R_SYM (irel->r_info);
955 if (isym->st_shndx == sec_shndx
956 && (isym->st_value <= addr
957 || isym->st_value >= toaddr))
252b5132
RH
958 {
959 bfd_vma val;
960
55e6e397
RS
961 if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
962 {
963 val = bfd_get_32 (abfd, contents + nraddr);
964 val += isym->st_value;
965 if (val > addr && val < toaddr)
966 bfd_put_32 (abfd, val - count, contents + nraddr);
967 }
968 else
969 {
970 val = isym->st_value + irel->r_addend;
971 if (val > addr && val < toaddr)
972 irel->r_addend -= count;
973 }
252b5132
RH
974 }
975 }
976 start = stop = addr;
977 break;
978
979 case R_SH_DIR8WPN:
980 off = insn & 0xff;
981 if (off & 0x80)
982 off -= 0x100;
983 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
984 break;
985
986 case R_SH_IND12W:
bdfaef52
JR
987 off = insn & 0xfff;
988 if (! off)
989 {
990 /* This has been made by previous relaxation. Since the
991 relocation will be against an external symbol, the
992 final relocation will just do the right thing. */
993 start = stop = addr;
994 }
252b5132
RH
995 else
996 {
252b5132
RH
997 if (off & 0x800)
998 off -= 0x1000;
999 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
bdfaef52
JR
1000
1001 /* The addend will be against the section symbol, thus
1002 for adjusting the addend, the relevant start is the
1003 start of the section.
4cc11e76 1004 N.B. If we want to abandon in-place changes here and
bdfaef52
JR
1005 test directly using symbol + addend, we have to take into
1006 account that the addend has already been adjusted by -4. */
1007 if (stop > addr && stop < toaddr)
1008 irel->r_addend -= count;
252b5132
RH
1009 }
1010 break;
1011
1012 case R_SH_DIR8WPZ:
1013 off = insn & 0xff;
1014 stop = start + 4 + off * 2;
1015 break;
1016
1017 case R_SH_DIR8WPL:
1018 off = insn & 0xff;
435b1e90 1019 stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
252b5132
RH
1020 break;
1021
1022 case R_SH_SWITCH8:
1023 case R_SH_SWITCH16:
1024 case R_SH_SWITCH32:
1025 /* These relocs types represent
1026 .word L2-L1
06e1ba78 1027 The r_addend field holds the difference between the reloc
252b5132
RH
1028 address and L1. That is the start of the reloc, and
1029 adding in the contents gives us the top. We must adjust
06e1ba78
JR
1030 both the r_offset field and the section contents.
1031 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
1032 and the elf bfd r_offset is called r_vaddr. */
252b5132 1033
06e1ba78
JR
1034 stop = irel->r_offset;
1035 start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
252b5132
RH
1036
1037 if (start > addr
1038 && start < toaddr
1039 && (stop <= addr || stop >= toaddr))
1040 irel->r_addend += count;
1041 else if (stop > addr
1042 && stop < toaddr
1043 && (start <= addr || start >= toaddr))
1044 irel->r_addend -= count;
1045
252b5132
RH
1046 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
1047 voff = bfd_get_signed_16 (abfd, contents + nraddr);
1048 else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
1049 voff = bfd_get_8 (abfd, contents + nraddr);
1050 else
1051 voff = bfd_get_signed_32 (abfd, contents + nraddr);
1052 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1053
1054 break;
1055
1056 case R_SH_USES:
1057 start = irel->r_offset;
1058 stop = (bfd_vma) ((bfd_signed_vma) start
1059 + (long) irel->r_addend
1060 + 4);
1061 break;
1062 }
1063
1064 if (start > addr
1065 && start < toaddr
1066 && (stop <= addr || stop >= toaddr))
1067 adjust = count;
1068 else if (stop > addr
1069 && stop < toaddr
1070 && (start <= addr || start >= toaddr))
1071 adjust = - count;
1072 else
1073 adjust = 0;
1074
1075 if (adjust != 0)
1076 {
1077 oinsn = insn;
b34976b6 1078 overflow = FALSE;
252b5132
RH
1079 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
1080 {
1081 default:
1082 abort ();
1083 break;
1084
1085 case R_SH_DIR8WPN:
1086 case R_SH_DIR8WPZ:
1087 insn += adjust / 2;
1088 if ((oinsn & 0xff00) != (insn & 0xff00))
b34976b6 1089 overflow = TRUE;
dc810e39 1090 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
1091 break;
1092
1093 case R_SH_IND12W:
1094 insn += adjust / 2;
1095 if ((oinsn & 0xf000) != (insn & 0xf000))
b34976b6 1096 overflow = TRUE;
dc810e39 1097 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
1098 break;
1099
1100 case R_SH_DIR8WPL:
1101 BFD_ASSERT (adjust == count || count >= 4);
1102 if (count >= 4)
1103 insn += adjust / 4;
1104 else
1105 {
1106 if ((irel->r_offset & 3) == 0)
1107 ++insn;
1108 }
1109 if ((oinsn & 0xff00) != (insn & 0xff00))
b34976b6 1110 overflow = TRUE;
dc810e39 1111 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
1112 break;
1113
851cde10
JR
1114 case R_SH_SWITCH8:
1115 voff += adjust;
1116 if (voff < 0 || voff >= 0xff)
b34976b6 1117 overflow = TRUE;
851cde10
JR
1118 bfd_put_8 (abfd, voff, contents + nraddr);
1119 break;
1120
252b5132
RH
1121 case R_SH_SWITCH16:
1122 voff += adjust;
1123 if (voff < - 0x8000 || voff >= 0x8000)
b34976b6 1124 overflow = TRUE;
dc810e39 1125 bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
252b5132
RH
1126 break;
1127
1128 case R_SH_SWITCH32:
1129 voff += adjust;
dc810e39 1130 bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
252b5132
RH
1131 break;
1132
1133 case R_SH_USES:
1134 irel->r_addend += adjust;
1135 break;
1136 }
1137
1138 if (overflow)
1139 {
4eca0228 1140 _bfd_error_handler
695344c0 1141 /* xgettext:c-format */
2dcf00ce
AM
1142 (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1143 abfd, (uint64_t) irel->r_offset);
252b5132 1144 bfd_set_error (bfd_error_bad_value);
b34976b6 1145 return FALSE;
252b5132
RH
1146 }
1147 }
1148
1149 irel->r_offset = nraddr;
1150 }
1151
1152 /* Look through all the other sections. If there contain any IMM32
1153 relocs against internal symbols which we are not going to adjust
1154 below, we may need to adjust the addends. */
1155 for (o = abfd->sections; o != NULL; o = o->next)
1156 {
1157 Elf_Internal_Rela *internal_relocs;
1158 Elf_Internal_Rela *irelscan, *irelscanend;
1159 bfd_byte *ocontents;
1160
1161 if (o == sec
1162 || (o->flags & SEC_RELOC) == 0
1163 || o->reloc_count == 0)
1164 continue;
1165
1166 /* We always cache the relocs. Perhaps, if info->keep_memory is
b34976b6 1167 FALSE, we should free them, if we are permitted to, when we
067653c5 1168 leave sh_coff_relax_section. */
45d6a902 1169 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 1170 (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE));
252b5132 1171 if (internal_relocs == NULL)
b34976b6 1172 return FALSE;
252b5132
RH
1173
1174 ocontents = NULL;
1175 irelscanend = internal_relocs + o->reloc_count;
1176 for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
1177 {
084aa3aa
JR
1178 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
1179 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
1180 {
1181 bfd_vma start, stop;
1182 bfd_signed_vma voff;
1183
1184 if (ocontents == NULL)
1185 {
1186 if (elf_section_data (o)->this_hdr.contents != NULL)
1187 ocontents = elf_section_data (o)->this_hdr.contents;
1188 else
1189 {
1190 /* We always cache the section contents.
b34976b6 1191 Perhaps, if info->keep_memory is FALSE, we
067653c5
AM
1192 should free them, if we are permitted to,
1193 when we leave sh_coff_relax_section. */
eea6121a
AM
1194 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1195 {
1196 if (ocontents != NULL)
1197 free (ocontents);
1198 return FALSE;
1199 }
1200
084aa3aa
JR
1201 elf_section_data (o)->this_hdr.contents = ocontents;
1202 }
1203 }
1204
1205 stop = irelscan->r_offset;
1206 start
1207 = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
1208
1209 /* STOP is in a different section, so it won't change. */
1210 if (start > addr && start < toaddr)
1211 irelscan->r_addend += count;
1212
1213 voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
1214 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1215
1216 if (start > addr
1217 && start < toaddr
1218 && (stop <= addr || stop >= toaddr))
dc810e39 1219 bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
084aa3aa
JR
1220 ocontents + irelscan->r_offset);
1221 else if (stop > addr
1222 && stop < toaddr
1223 && (start <= addr || start >= toaddr))
dc810e39 1224 bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
084aa3aa
JR
1225 ocontents + irelscan->r_offset);
1226 }
1227
252b5132
RH
1228 if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
1229 continue;
1230
1231 if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
1232 continue;
1233
252b5132 1234
6cdc0ccc
AM
1235 isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
1236 if (isym->st_shndx == sec_shndx
1237 && (isym->st_value <= addr
1238 || isym->st_value >= toaddr))
252b5132
RH
1239 {
1240 bfd_vma val;
1241
1242 if (ocontents == NULL)
1243 {
1244 if (elf_section_data (o)->this_hdr.contents != NULL)
1245 ocontents = elf_section_data (o)->this_hdr.contents;
1246 else
1247 {
1248 /* We always cache the section contents.
b34976b6 1249 Perhaps, if info->keep_memory is FALSE, we
067653c5
AM
1250 should free them, if we are permitted to,
1251 when we leave sh_coff_relax_section. */
eea6121a
AM
1252 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1253 {
1254 if (ocontents != NULL)
1255 free (ocontents);
1256 return FALSE;
1257 }
1258
252b5132
RH
1259 elf_section_data (o)->this_hdr.contents = ocontents;
1260 }
1261 }
1262
1263 val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
6cdc0ccc 1264 val += isym->st_value;
252b5132
RH
1265 if (val > addr && val < toaddr)
1266 bfd_put_32 (abfd, val - count,
1267 ocontents + irelscan->r_offset);
1268 }
1269 }
1270 }
1271
1272 /* Adjust the local symbols defined in this section. */
6cdc0ccc
AM
1273 isymend = isymbuf + symtab_hdr->sh_info;
1274 for (isym = isymbuf; isym < isymend; isym++)
252b5132 1275 {
6cdc0ccc
AM
1276 if (isym->st_shndx == sec_shndx
1277 && isym->st_value > addr
1278 && isym->st_value < toaddr)
1279 isym->st_value -= count;
252b5132
RH
1280 }
1281
1282 /* Now adjust the global symbols defined in this section. */
9ad5cbcf
AM
1283 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1284 - symtab_hdr->sh_info);
1285 sym_hashes = elf_sym_hashes (abfd);
1286 end_hashes = sym_hashes + symcount;
1287 for (; sym_hashes < end_hashes; sym_hashes++)
252b5132 1288 {
9ad5cbcf
AM
1289 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1290 if ((sym_hash->root.type == bfd_link_hash_defined
1291 || sym_hash->root.type == bfd_link_hash_defweak)
1292 && sym_hash->root.u.def.section == sec
1293 && sym_hash->root.u.def.value > addr
1294 && sym_hash->root.u.def.value < toaddr)
252b5132 1295 {
9ad5cbcf 1296 sym_hash->root.u.def.value -= count;
252b5132
RH
1297 }
1298 }
1299
1300 /* See if we can move the ALIGN reloc forward. We have adjusted
1301 r_offset for it already. */
1302 if (irelalign != NULL)
1303 {
1304 bfd_vma alignto, alignaddr;
1305
1306 alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
1307 alignaddr = BFD_ALIGN (irelalign->r_offset,
1308 1 << irelalign->r_addend);
1309 if (alignto != alignaddr)
1310 {
1311 /* Tail recursion. */
1312 return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
dc810e39 1313 (int) (alignto - alignaddr));
252b5132
RH
1314 }
1315 }
1316
b34976b6 1317 return TRUE;
252b5132
RH
1318}
1319
1320/* Look for loads and stores which we can align to four byte
1321 boundaries. This is like sh_align_loads in coff-sh.c. */
1322
b34976b6 1323static bfd_boolean
09fd220b
KK
1324sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
1325 Elf_Internal_Rela *internal_relocs,
1326 bfd_byte *contents ATTRIBUTE_UNUSED,
1327 bfd_boolean *pswapped)
252b5132
RH
1328{
1329 Elf_Internal_Rela *irel, *irelend;
1330 bfd_vma *labels = NULL;
1331 bfd_vma *label, *label_end;
dc810e39 1332 bfd_size_type amt;
252b5132 1333
b34976b6 1334 *pswapped = FALSE;
252b5132
RH
1335
1336 irelend = internal_relocs + sec->reloc_count;
1337
1338 /* Get all the addresses with labels on them. */
dc810e39
AM
1339 amt = sec->reloc_count;
1340 amt *= sizeof (bfd_vma);
1341 labels = (bfd_vma *) bfd_malloc (amt);
252b5132
RH
1342 if (labels == NULL)
1343 goto error_return;
1344 label_end = labels;
1345 for (irel = internal_relocs; irel < irelend; irel++)
1346 {
1347 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
1348 {
1349 *label_end = irel->r_offset;
1350 ++label_end;
1351 }
1352 }
1353
1354 /* Note that the assembler currently always outputs relocs in
1355 address order. If that ever changes, this code will need to sort
1356 the label values and the relocs. */
1357
1358 label = labels;
1359
1360 for (irel = internal_relocs; irel < irelend; irel++)
1361 {
1362 bfd_vma start, stop;
1363
1364 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
1365 continue;
1366
1367 start = irel->r_offset;
1368
1369 for (irel++; irel < irelend; irel++)
1370 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
1371 break;
1372 if (irel < irelend)
1373 stop = irel->r_offset;
1374 else
eea6121a 1375 stop = sec->size;
252b5132
RH
1376
1377 if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
09fd220b 1378 internal_relocs, &label,
252b5132
RH
1379 label_end, start, stop, pswapped))
1380 goto error_return;
1381 }
1382
1383 free (labels);
1384
b34976b6 1385 return TRUE;
252b5132
RH
1386
1387 error_return:
1388 if (labels != NULL)
1389 free (labels);
b34976b6 1390 return FALSE;
252b5132
RH
1391}
1392
1393/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
1394
b34976b6 1395static bfd_boolean
09fd220b
KK
1396sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs,
1397 bfd_byte *contents, bfd_vma addr)
252b5132
RH
1398{
1399 Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
1400 unsigned short i1, i2;
1401 Elf_Internal_Rela *irel, *irelend;
1402
1403 /* Swap the instructions themselves. */
1404 i1 = bfd_get_16 (abfd, contents + addr);
1405 i2 = bfd_get_16 (abfd, contents + addr + 2);
dc810e39
AM
1406 bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
1407 bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
252b5132
RH
1408
1409 /* Adjust all reloc addresses. */
1410 irelend = internal_relocs + sec->reloc_count;
1411 for (irel = internal_relocs; irel < irelend; irel++)
1412 {
1413 enum elf_sh_reloc_type type;
1414 int add;
1415
1416 /* There are a few special types of relocs that we don't want to
067653c5
AM
1417 adjust. These relocs do not apply to the instruction itself,
1418 but are only associated with the address. */
252b5132
RH
1419 type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
1420 if (type == R_SH_ALIGN
1421 || type == R_SH_CODE
1422 || type == R_SH_DATA
1423 || type == R_SH_LABEL)
1424 continue;
1425
1426 /* If an R_SH_USES reloc points to one of the addresses being
067653c5
AM
1427 swapped, we must adjust it. It would be incorrect to do this
1428 for a jump, though, since we want to execute both
1429 instructions after the jump. (We have avoided swapping
1430 around a label, so the jump will not wind up executing an
1431 instruction it shouldn't). */
252b5132
RH
1432 if (type == R_SH_USES)
1433 {
1434 bfd_vma off;
1435
1436 off = irel->r_offset + 4 + irel->r_addend;
1437 if (off == addr)
1438 irel->r_offset += 2;
1439 else if (off == addr + 2)
1440 irel->r_offset -= 2;
1441 }
1442
1443 if (irel->r_offset == addr)
1444 {
1445 irel->r_offset += 2;
1446 add = -2;
1447 }
1448 else if (irel->r_offset == addr + 2)
1449 {
1450 irel->r_offset -= 2;
1451 add = 2;
1452 }
1453 else
1454 add = 0;
1455
1456 if (add != 0)
1457 {
1458 bfd_byte *loc;
1459 unsigned short insn, oinsn;
b34976b6 1460 bfd_boolean overflow;
252b5132
RH
1461
1462 loc = contents + irel->r_offset;
b34976b6 1463 overflow = FALSE;
252b5132
RH
1464 switch (type)
1465 {
1466 default:
1467 break;
1468
1469 case R_SH_DIR8WPN:
1470 case R_SH_DIR8WPZ:
1471 insn = bfd_get_16 (abfd, loc);
1472 oinsn = insn;
1473 insn += add / 2;
1474 if ((oinsn & 0xff00) != (insn & 0xff00))
b34976b6 1475 overflow = TRUE;
dc810e39 1476 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
1477 break;
1478
1479 case R_SH_IND12W:
1480 insn = bfd_get_16 (abfd, loc);
1481 oinsn = insn;
1482 insn += add / 2;
1483 if ((oinsn & 0xf000) != (insn & 0xf000))
b34976b6 1484 overflow = TRUE;
dc810e39 1485 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
1486 break;
1487
1488 case R_SH_DIR8WPL:
1489 /* This reloc ignores the least significant 3 bits of
067653c5
AM
1490 the program counter before adding in the offset.
1491 This means that if ADDR is at an even address, the
1492 swap will not affect the offset. If ADDR is an at an
1493 odd address, then the instruction will be crossing a
1494 four byte boundary, and must be adjusted. */
252b5132
RH
1495 if ((addr & 3) != 0)
1496 {
1497 insn = bfd_get_16 (abfd, loc);
1498 oinsn = insn;
1499 insn += add / 2;
1500 if ((oinsn & 0xff00) != (insn & 0xff00))
b34976b6 1501 overflow = TRUE;
dc810e39 1502 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
1503 }
1504
1505 break;
1506 }
1507
1508 if (overflow)
1509 {
4eca0228 1510 _bfd_error_handler
695344c0 1511 /* xgettext:c-format */
2dcf00ce
AM
1512 (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1513 abfd, (uint64_t) irel->r_offset);
252b5132 1514 bfd_set_error (bfd_error_bad_value);
b34976b6 1515 return FALSE;
252b5132
RH
1516 }
1517 }
1518 }
1519
b34976b6 1520 return TRUE;
252b5132
RH
1521}
1522\f
55e6e397
RS
1523/* Describes one of the various PLT styles. */
1524
1525struct elf_sh_plt_info
1526{
1527 /* The template for the first PLT entry, or NULL if there is no special
1528 first entry. */
1529 const bfd_byte *plt0_entry;
1530
1531 /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */
1532 bfd_vma plt0_entry_size;
1533
1534 /* Index I is the offset into PLT0_ENTRY of a pointer to
1535 _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE
1536 if there is no such pointer. */
1537 bfd_vma plt0_got_fields[3];
1538
1539 /* The template for a symbol's PLT entry. */
1540 const bfd_byte *symbol_entry;
1541
1542 /* The size of SYMBOL_ENTRY in bytes. */
1543 bfd_vma symbol_entry_size;
1544
1545 /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used
1546 on all targets. The comments by each member indicate the value
1547 that the field must hold. */
1548 struct {
1549 bfd_vma got_entry; /* the address of the symbol's .got.plt entry */
1550 bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */
1551 bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */
8e45593f
NC
1552 bfd_boolean got20; /* TRUE if got_entry points to a movi20
1553 instruction (instead of a constant pool
1554 entry). */
55e6e397
RS
1555 } symbol_fields;
1556
1557 /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
1558 bfd_vma symbol_resolve_offset;
8e45593f
NC
1559
1560 /* A different PLT layout which can be used for the first
1561 MAX_SHORT_PLT entries. It must share the same plt0. NULL in
1562 other cases. */
1563 const struct elf_sh_plt_info *short_plt;
55e6e397
RS
1564};
1565
37c644f2 1566/* The size in bytes of an entry in the procedure linkage table. */
252b5132 1567
55e6e397 1568#define ELF_PLT_ENTRY_SIZE 28
37c644f2
AO
1569
1570/* First entry in an absolute procedure linkage table look like this. */
1571
6c426cf3 1572/* Note - this code has been "optimised" not to use r2. r2 is used by
4cc11e76 1573 GCC to return the address of large structures, so it should not be
6c426cf3
NC
1574 corrupted here. This does mean however, that this PLT does not conform
1575 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
1576 and r2 contains the GOT id. This version stores the GOT id in r0 and
1577 ignores the type. Loaders can easily detect this difference however,
1578 since the type will always be 0 or 8, and the GOT ids will always be
1579 greater than or equal to 12. */
55e6e397 1580static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1581{
1582 0xd0, 0x05, /* mov.l 2f,r0 */
1583 0x60, 0x02, /* mov.l @r0,r0 */
1584 0x2f, 0x06, /* mov.l r0,@-r15 */
1585 0xd0, 0x03, /* mov.l 1f,r0 */
1586 0x60, 0x02, /* mov.l @r0,r0 */
1587 0x40, 0x2b, /* jmp @r0 */
1588 0x60, 0xf6, /* mov.l @r15+,r0 */
1589 0x00, 0x09, /* nop */
1590 0x00, 0x09, /* nop */
1591 0x00, 0x09, /* nop */
1592 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1593 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1594};
1595
55e6e397 1596static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1597{
1598 0x05, 0xd0, /* mov.l 2f,r0 */
1599 0x02, 0x60, /* mov.l @r0,r0 */
1600 0x06, 0x2f, /* mov.l r0,@-r15 */
1601 0x03, 0xd0, /* mov.l 1f,r0 */
1602 0x02, 0x60, /* mov.l @r0,r0 */
1603 0x2b, 0x40, /* jmp @r0 */
1604 0xf6, 0x60, /* mov.l @r15+,r0 */
1605 0x09, 0x00, /* nop */
1606 0x09, 0x00, /* nop */
1607 0x09, 0x00, /* nop */
1608 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1609 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1610};
1611
1612/* Sebsequent entries in an absolute procedure linkage table look like
1613 this. */
1614
55e6e397 1615static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1616{
1617 0xd0, 0x04, /* mov.l 1f,r0 */
55e6e397 1618 0x60, 0x02, /* mov.l @(r0,r12),r0 */
6c426cf3
NC
1619 0xd1, 0x02, /* mov.l 0f,r1 */
1620 0x40, 0x2b, /* jmp @r0 */
1621 0x60, 0x13, /* mov r1,r0 */
1622 0xd1, 0x03, /* mov.l 2f,r1 */
1623 0x40, 0x2b, /* jmp @r0 */
1624 0x00, 0x09, /* nop */
1625 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1626 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1627 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1628};
1629
55e6e397 1630static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1631{
1632 0x04, 0xd0, /* mov.l 1f,r0 */
1633 0x02, 0x60, /* mov.l @r0,r0 */
1634 0x02, 0xd1, /* mov.l 0f,r1 */
1635 0x2b, 0x40, /* jmp @r0 */
1636 0x13, 0x60, /* mov r1,r0 */
1637 0x03, 0xd1, /* mov.l 2f,r1 */
1638 0x2b, 0x40, /* jmp @r0 */
1639 0x09, 0x00, /* nop */
1640 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1641 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1642 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1643};
1644
1645/* Entries in a PIC procedure linkage table look like this. */
1646
55e6e397 1647static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1648{
1649 0xd0, 0x04, /* mov.l 1f,r0 */
1650 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1651 0x40, 0x2b, /* jmp @r0 */
1652 0x00, 0x09, /* nop */
1653 0x50, 0xc2, /* mov.l @(8,r12),r0 */
1654 0xd1, 0x03, /* mov.l 2f,r1 */
1655 0x40, 0x2b, /* jmp @r0 */
1656 0x50, 0xc1, /* mov.l @(4,r12),r0 */
1657 0x00, 0x09, /* nop */
1658 0x00, 0x09, /* nop */
1659 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1660 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1661};
1662
55e6e397 1663static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1664{
1665 0x04, 0xd0, /* mov.l 1f,r0 */
1666 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1667 0x2b, 0x40, /* jmp @r0 */
1668 0x09, 0x00, /* nop */
1669 0xc2, 0x50, /* mov.l @(8,r12),r0 */
1670 0x03, 0xd1, /* mov.l 2f,r1 */
1671 0x2b, 0x40, /* jmp @r0 */
1672 0xc1, 0x50, /* mov.l @(4,r12),r0 */
1673 0x09, 0x00, /* nop */
1674 0x09, 0x00, /* nop */
1675 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1676 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1677};
1678
55e6e397
RS
1679static const struct elf_sh_plt_info elf_sh_plts[2][2] = {
1680 {
1681 {
1682 /* Big-endian non-PIC. */
1683 elf_sh_plt0_entry_be,
1684 ELF_PLT_ENTRY_SIZE,
1685 { MINUS_ONE, 24, 20 },
1686 elf_sh_plt_entry_be,
1687 ELF_PLT_ENTRY_SIZE,
8e45593f
NC
1688 { 20, 16, 24, FALSE },
1689 8,
1690 NULL
55e6e397
RS
1691 },
1692 {
1693 /* Little-endian non-PIC. */
1694 elf_sh_plt0_entry_le,
1695 ELF_PLT_ENTRY_SIZE,
1696 { MINUS_ONE, 24, 20 },
1697 elf_sh_plt_entry_le,
1698 ELF_PLT_ENTRY_SIZE,
8e45593f
NC
1699 { 20, 16, 24, FALSE },
1700 8,
1701 NULL
55e6e397
RS
1702 },
1703 },
1704 {
1705 {
1706 /* Big-endian PIC. */
1707 elf_sh_plt0_entry_be,
1708 ELF_PLT_ENTRY_SIZE,
1709 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1710 elf_sh_pic_plt_entry_be,
1711 ELF_PLT_ENTRY_SIZE,
8e45593f
NC
1712 { 20, MINUS_ONE, 24, FALSE },
1713 8,
1714 NULL
55e6e397
RS
1715 },
1716 {
1717 /* Little-endian PIC. */
1718 elf_sh_plt0_entry_le,
1719 ELF_PLT_ENTRY_SIZE,
1720 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1721 elf_sh_pic_plt_entry_le,
1722 ELF_PLT_ENTRY_SIZE,
8e45593f
NC
1723 { 20, MINUS_ONE, 24, FALSE },
1724 8,
1725 NULL
55e6e397
RS
1726 },
1727 }
1728};
252b5132 1729
55e6e397
RS
1730#define VXWORKS_PLT_HEADER_SIZE 12
1731#define VXWORKS_PLT_ENTRY_SIZE 24
252b5132 1732
55e6e397
RS
1733static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] =
1734{
1735 0xd1, 0x01, /* mov.l @(8,pc),r1 */
1736 0x61, 0x12, /* mov.l @r1,r1 */
1737 0x41, 0x2b, /* jmp @r1 */
1738 0x00, 0x09, /* nop */
1739 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1740};
252b5132 1741
55e6e397
RS
1742static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] =
1743{
1744 0x01, 0xd1, /* mov.l @(8,pc),r1 */
1745 0x12, 0x61, /* mov.l @r1,r1 */
1746 0x2b, 0x41, /* jmp @r1 */
1747 0x09, 0x00, /* nop */
1748 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1749};
1750
1751static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
1752{
1753 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1754 0x60, 0x02, /* mov.l @r0,r0 */
1755 0x40, 0x2b, /* jmp @r0 */
1756 0x00, 0x09, /* nop */
1757 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1758 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1759 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */
1760 0x00, 0x09, /* nop */
1761 0x00, 0x09, /* nop */
1762 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1763};
1764
1765static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
1766{
1767 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1768 0x02, 0x60, /* mov.l @r0,r0 */
1769 0x2b, 0x40, /* jmp @r0 */
1770 0x09, 0x00, /* nop */
1771 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1772 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1773 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */
1774 0x09, 0x00, /* nop */
1775 0x09, 0x00, /* nop */
1776 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1777};
1778
1779static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
1780{
1781 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1782 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1783 0x40, 0x2b, /* jmp @r0 */
1784 0x00, 0x09, /* nop */
1785 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1786 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1787 0x51, 0xc2, /* mov.l @(8,r12),r1 */
1788 0x41, 0x2b, /* jmp @r1 */
1789 0x00, 0x09, /* nop */
1790 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1791};
1792
1793static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
1794{
1795 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1796 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1797 0x2b, 0x40, /* jmp @r0 */
1798 0x09, 0x00, /* nop */
1799 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1800 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1801 0xc2, 0x51, /* mov.l @(8,r12),r1 */
1802 0x2b, 0x41, /* jmp @r1 */
1803 0x09, 0x00, /* nop */
1804 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1805};
1806
1807static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = {
1808 {
1809 {
1810 /* Big-endian non-PIC. */
1811 vxworks_sh_plt0_entry_be,
1812 VXWORKS_PLT_HEADER_SIZE,
1813 { MINUS_ONE, MINUS_ONE, 8 },
1814 vxworks_sh_plt_entry_be,
1815 VXWORKS_PLT_ENTRY_SIZE,
8e45593f
NC
1816 { 8, 14, 20, FALSE },
1817 12,
1818 NULL
55e6e397
RS
1819 },
1820 {
1821 /* Little-endian non-PIC. */
1822 vxworks_sh_plt0_entry_le,
1823 VXWORKS_PLT_HEADER_SIZE,
1824 { MINUS_ONE, MINUS_ONE, 8 },
1825 vxworks_sh_plt_entry_le,
1826 VXWORKS_PLT_ENTRY_SIZE,
8e45593f
NC
1827 { 8, 14, 20, FALSE },
1828 12,
1829 NULL
55e6e397
RS
1830 },
1831 },
1832 {
1833 {
1834 /* Big-endian PIC. */
1835 NULL,
1836 0,
1837 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1838 vxworks_sh_pic_plt_entry_be,
1839 VXWORKS_PLT_ENTRY_SIZE,
8e45593f
NC
1840 { 8, MINUS_ONE, 20, FALSE },
1841 12,
1842 NULL
55e6e397
RS
1843 },
1844 {
1845 /* Little-endian PIC. */
1846 NULL,
1847 0,
1848 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1849 vxworks_sh_pic_plt_entry_le,
1850 VXWORKS_PLT_ENTRY_SIZE,
8e45593f
NC
1851 { 8, MINUS_ONE, 20, FALSE },
1852 12,
1853 NULL
55e6e397
RS
1854 },
1855 }
1856};
9bdafcce 1857
8e45593f
NC
1858/* FDPIC PLT entries. Two unimplemented optimizations for lazy
1859 binding are to omit the lazy binding stub when linking with -z now
1860 and to move lazy binding stubs into a separate region for better
1861 cache behavior. */
1862
1863#define FDPIC_PLT_ENTRY_SIZE 28
1864#define FDPIC_PLT_LAZY_OFFSET 20
1865
1866/* FIXME: The lazy binding stub requires a plt0 - which may need to be
1867 duplicated if it is out of range, or which can be inlined. So
1868 right now it is always inlined, which wastes a word per stub. It
1869 might be easier to handle the duplication if we put the lazy
1870 stubs separately. */
1871
1872static const bfd_byte fdpic_sh_plt_entry_be[FDPIC_PLT_ENTRY_SIZE] =
1873{
1874 0xd0, 0x02, /* mov.l @(12,pc),r0 */
1875 0x01, 0xce, /* mov.l @(r0,r12),r1 */
1876 0x70, 0x04, /* add #4, r0 */
1877 0x41, 0x2b, /* jmp @r1 */
1878 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
1879 0x00, 0x09, /* nop */
1880 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
1881 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1882 0x60, 0xc2, /* mov.l @r12,r0 */
1883 0x40, 0x2b, /* jmp @r0 */
1884 0x53, 0xc1, /* mov.l @(4,r12),r3 */
1885 0x00, 0x09, /* nop */
1886};
1887
1888static const bfd_byte fdpic_sh_plt_entry_le[FDPIC_PLT_ENTRY_SIZE] =
1889{
1890 0x02, 0xd0, /* mov.l @(12,pc),r0 */
1891 0xce, 0x01, /* mov.l @(r0,r12),r1 */
1892 0x04, 0x70, /* add #4, r0 */
1893 0x2b, 0x41, /* jmp @r1 */
1894 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
1895 0x09, 0x00, /* nop */
1896 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
1897 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1898 0xc2, 0x60, /* mov.l @r12,r0 */
1899 0x2b, 0x40, /* jmp @r0 */
1900 0xc1, 0x53, /* mov.l @(4,r12),r3 */
1901 0x09, 0x00, /* nop */
1902};
1903
1904static const struct elf_sh_plt_info fdpic_sh_plts[2] = {
1905 {
1906 /* Big-endian PIC. */
1907 NULL,
1908 0,
1909 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1910 fdpic_sh_plt_entry_be,
1911 FDPIC_PLT_ENTRY_SIZE,
1912 { 12, MINUS_ONE, 16, FALSE },
1913 FDPIC_PLT_LAZY_OFFSET,
1914 NULL
1915 },
1916 {
1917 /* Little-endian PIC. */
1918 NULL,
1919 0,
1920 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1921 fdpic_sh_plt_entry_le,
1922 FDPIC_PLT_ENTRY_SIZE,
1923 { 12, MINUS_ONE, 16, FALSE },
1924 FDPIC_PLT_LAZY_OFFSET,
1925 NULL
1926 },
1927};
1928
1929/* On SH2A, we can use the movi20 instruction to generate shorter PLT
1930 entries for the first 64K slots. We use the normal FDPIC PLT entry
1931 past that point; we could also use movi20s, which might be faster,
1932 but would not be any smaller. */
1933
1934#define FDPIC_SH2A_PLT_ENTRY_SIZE 24
1935#define FDPIC_SH2A_PLT_LAZY_OFFSET 16
1936
1937static const bfd_byte fdpic_sh2a_plt_entry_be[FDPIC_SH2A_PLT_ENTRY_SIZE] =
1938{
1939 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
1940 0x01, 0xce, /* mov.l @(r0,r12),r1 */
1941 0x70, 0x04, /* add #4, r0 */
1942 0x41, 0x2b, /* jmp @r1 */
1943 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
1944 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1945 0x60, 0xc2, /* mov.l @r12,r0 */
1946 0x40, 0x2b, /* jmp @r0 */
1947 0x53, 0xc1, /* mov.l @(4,r12),r3 */
1948 0x00, 0x09, /* nop */
1949};
1950
1951static const bfd_byte fdpic_sh2a_plt_entry_le[FDPIC_SH2A_PLT_ENTRY_SIZE] =
1952{
1953 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
1954 0xce, 0x01, /* mov.l @(r0,r12),r1 */
1955 0x04, 0x70, /* add #4, r0 */
1956 0x2b, 0x41, /* jmp @r1 */
1957 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
1958 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1959 0xc2, 0x60, /* mov.l @r12,r0 */
1960 0x2b, 0x40, /* jmp @r0 */
1961 0xc1, 0x53, /* mov.l @(4,r12),r3 */
1962 0x09, 0x00, /* nop */
1963};
1964
1965static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be = {
1966 /* Big-endian FDPIC, max index 64K. */
1967 NULL,
1968 0,
1969 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1970 fdpic_sh2a_plt_entry_be,
1971 FDPIC_SH2A_PLT_ENTRY_SIZE,
1972 { 0, MINUS_ONE, 12, TRUE },
1973 FDPIC_SH2A_PLT_LAZY_OFFSET,
1974 NULL
1975};
1976
1977static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le = {
1978 /* Little-endian FDPIC, max index 64K. */
1979 NULL,
1980 0,
1981 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1982 fdpic_sh2a_plt_entry_le,
1983 FDPIC_SH2A_PLT_ENTRY_SIZE,
1984 { 0, MINUS_ONE, 12, TRUE },
1985 FDPIC_SH2A_PLT_LAZY_OFFSET,
1986 NULL
1987};
1988
1989static const struct elf_sh_plt_info fdpic_sh2a_plts[2] = {
1990 {
1991 /* Big-endian PIC. */
1992 NULL,
1993 0,
1994 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1995 fdpic_sh_plt_entry_be,
1996 FDPIC_PLT_ENTRY_SIZE,
1997 { 12, MINUS_ONE, 16, FALSE },
1998 FDPIC_PLT_LAZY_OFFSET,
1999 &fdpic_sh2a_short_plt_be
2000 },
2001 {
2002 /* Little-endian PIC. */
2003 NULL,
2004 0,
2005 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2006 fdpic_sh_plt_entry_le,
2007 FDPIC_PLT_ENTRY_SIZE,
2008 { 12, MINUS_ONE, 16, FALSE },
2009 FDPIC_PLT_LAZY_OFFSET,
2010 &fdpic_sh2a_short_plt_le
2011 },
2012};
2013
55e6e397
RS
2014/* Return the type of PLT associated with ABFD. PIC_P is true if
2015 the object is position-independent. */
9bdafcce 2016
55e6e397 2017static const struct elf_sh_plt_info *
8e45593f 2018get_plt_info (bfd *abfd, bfd_boolean pic_p)
55e6e397 2019{
8e45593f
NC
2020 if (fdpic_object_p (abfd))
2021 {
2022 /* If any input file requires SH2A we can use a shorter PLT
2023 sequence. */
2024 if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd)) & arch_sh2a_base)
2025 return &fdpic_sh2a_plts[!bfd_big_endian (abfd)];
2026 else
2027 return &fdpic_sh_plts[!bfd_big_endian (abfd)];
2028 }
55e6e397
RS
2029 if (vxworks_object_p (abfd))
2030 return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)];
2031 return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)];
2032}
9bdafcce 2033
55e6e397
RS
2034/* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
2035 VALUE is the field's value and CODE_P is true if VALUE refers to code,
2036 not data. */
9bdafcce 2037
55e6e397
RS
2038inline static void
2039install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED,
2040 unsigned long value, bfd_byte *addr)
2041{
2042 bfd_put_32 (output_bfd, value, addr);
2043}
015551fc 2044
8e45593f
NC
2045/* The number of PLT entries which can use a shorter PLT, if any.
2046 Currently always 64K, since only SH-2A FDPIC uses this; a
2047 20-bit movi20 can address that many function descriptors below
2048 _GLOBAL_OFFSET_TABLE_. */
2049#define MAX_SHORT_PLT 65536
2050
55e6e397
RS
2051/* Return the index of the PLT entry at byte offset OFFSET. */
2052
2053static bfd_vma
2054get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset)
2055{
8e45593f
NC
2056 bfd_vma plt_index = 0;
2057
2058 offset -= info->plt0_entry_size;
2059 if (info->short_plt != NULL)
2060 {
2061 if (offset > MAX_SHORT_PLT * info->short_plt->symbol_entry_size)
2062 {
2063 plt_index = MAX_SHORT_PLT;
2064 offset -= MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2065 }
2066 else
2067 info = info->short_plt;
2068 }
2069 return plt_index + offset / info->symbol_entry_size;
55e6e397
RS
2070}
2071
2072/* Do the inverse operation. */
2073
2074static bfd_vma
91d6fa6a 2075get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index)
55e6e397 2076{
8e45593f
NC
2077 bfd_vma offset = 0;
2078
2079 if (info->short_plt != NULL)
2080 {
2081 if (plt_index > MAX_SHORT_PLT)
2082 {
2083 offset = MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2084 plt_index -= MAX_SHORT_PLT;
2085 }
2086 else
2087 info = info->short_plt;
2088 }
2089 return (offset + info->plt0_entry_size
2090 + (plt_index * info->symbol_entry_size));
55e6e397
RS
2091}
2092
8e45593f
NC
2093union gotref
2094{
2095 bfd_signed_vma refcount;
2096 bfd_vma offset;
2097};
2098
37c644f2
AO
2099/* sh ELF linker hash entry. */
2100
38b1a46c
NC
2101struct elf_sh_link_hash_entry
2102{
37c644f2
AO
2103 struct elf_link_hash_entry root;
2104
067653c5 2105 /* Track dynamic relocs copied for this symbol. */
3bf083ed 2106 struct elf_dyn_relocs *dyn_relocs;
4989d792
SC
2107
2108 bfd_signed_vma gotplt_refcount;
3376eaf5 2109
8e45593f
NC
2110 /* A local function descriptor, for FDPIC. The refcount counts
2111 R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20
2112 relocations; the PLT and GOT entry are accounted
2113 for separately. After adjust_dynamic_symbol, the offset is
2114 MINUS_ONE if there is no local descriptor (dynamic linker
2115 managed and no PLT entry, or undefined weak non-dynamic).
2116 During check_relocs we do not yet know whether the local
2117 descriptor will be canonical. */
2118 union gotref funcdesc;
2119
2120 /* How many of the above refcounted relocations were R_SH_FUNCDESC,
2121 and thus require fixups or relocations. */
2122 bfd_signed_vma abs_funcdesc_refcount;
2123
85e02784 2124 enum got_type {
8e45593f
NC
2125 GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC
2126 } got_type;
3376eaf5
KK
2127};
2128
2129#define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
2130
2131struct sh_elf_obj_tdata
2132{
2133 struct elf_obj_tdata root;
2134
8e45593f
NC
2135 /* got_type for each local got entry. */
2136 char *local_got_type;
2137
2138 /* Function descriptor refcount and offset for each local symbol. */
2139 union gotref *local_funcdesc;
37c644f2
AO
2140};
2141
3376eaf5
KK
2142#define sh_elf_tdata(abfd) \
2143 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2144
8e45593f
NC
2145#define sh_elf_local_got_type(abfd) \
2146 (sh_elf_tdata (abfd)->local_got_type)
2147
2148#define sh_elf_local_funcdesc(abfd) \
2149 (sh_elf_tdata (abfd)->local_funcdesc)
3376eaf5 2150
0ffa91dd
NC
2151#define is_sh_elf(bfd) \
2152 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2153 && elf_tdata (bfd) != NULL \
4dfe6ac6 2154 && elf_object_id (bfd) == SH_ELF_DATA)
0ffa91dd 2155
3376eaf5
KK
2156/* Override the generic function because we need to store sh_elf_obj_tdata
2157 as the specific tdata. */
2158
b34976b6 2159static bfd_boolean
09fd220b 2160sh_elf_mkobject (bfd *abfd)
3376eaf5 2161{
0ffa91dd 2162 return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata),
4dfe6ac6 2163 SH_ELF_DATA);
3376eaf5 2164}
b34976b6 2165
37c644f2
AO
2166/* sh ELF linker hash table. */
2167
38b1a46c
NC
2168struct elf_sh_link_hash_table
2169{
37c644f2 2170 struct elf_link_hash_table root;
37c644f2 2171
067653c5 2172 /* Short-cuts to get to dynamic linker sections. */
067653c5
AM
2173 asection *sdynbss;
2174 asection *srelbss;
8e45593f
NC
2175 asection *sfuncdesc;
2176 asection *srelfuncdesc;
2177 asection *srofixup;
37c644f2 2178
55e6e397
RS
2179 /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
2180 asection *srelplt2;
2181
87d72d41
AM
2182 /* Small local sym cache. */
2183 struct sym_cache sym_cache;
3376eaf5
KK
2184
2185 /* A counter or offset to track a TLS got entry. */
2186 union
2187 {
2188 bfd_signed_vma refcount;
2189 bfd_vma offset;
2190 } tls_ldm_got;
55e6e397
RS
2191
2192 /* The type of PLT to use. */
2193 const struct elf_sh_plt_info *plt_info;
2194
2195 /* True if the target system is VxWorks. */
2196 bfd_boolean vxworks_p;
8e45593f
NC
2197
2198 /* True if the target system uses FDPIC. */
2199 bfd_boolean fdpic_p;
067653c5 2200};
37c644f2
AO
2201
2202/* Traverse an sh ELF linker hash table. */
2203
2204#define sh_elf_link_hash_traverse(table, func, info) \
2205 (elf_link_hash_traverse \
2206 (&(table)->root, \
09fd220b 2207 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
37c644f2
AO
2208 (info)))
2209
2210/* Get the sh ELF linker hash table from a link_info structure. */
2211
2212#define sh_elf_hash_table(p) \
4dfe6ac6
NC
2213 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
2214 == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL)
37c644f2
AO
2215
2216/* Create an entry in an sh ELF linker hash table. */
2217
2218static struct bfd_hash_entry *
09fd220b
KK
2219sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2220 struct bfd_hash_table *table,
2221 const char *string)
37c644f2
AO
2222{
2223 struct elf_sh_link_hash_entry *ret =
2224 (struct elf_sh_link_hash_entry *) entry;
2225
2226 /* Allocate the structure if it has not already been allocated by a
2227 subclass. */
2228 if (ret == (struct elf_sh_link_hash_entry *) NULL)
2229 ret = ((struct elf_sh_link_hash_entry *)
2230 bfd_hash_allocate (table,
2231 sizeof (struct elf_sh_link_hash_entry)));
2232 if (ret == (struct elf_sh_link_hash_entry *) NULL)
2233 return (struct bfd_hash_entry *) ret;
2234
2235 /* Call the allocation method of the superclass. */
2236 ret = ((struct elf_sh_link_hash_entry *)
2237 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2238 table, string));
2239 if (ret != (struct elf_sh_link_hash_entry *) NULL)
2240 {
396a6083
SC
2241 ret->dyn_relocs = NULL;
2242 ret->gotplt_refcount = 0;
8e45593f
NC
2243 ret->funcdesc.refcount = 0;
2244 ret->abs_funcdesc_refcount = 0;
2245 ret->got_type = GOT_UNKNOWN;
37c644f2
AO
2246 }
2247
2248 return (struct bfd_hash_entry *) ret;
2249}
2250
2251/* Create an sh ELF linker hash table. */
2252
2253static struct bfd_link_hash_table *
09fd220b 2254sh_elf_link_hash_table_create (bfd *abfd)
37c644f2
AO
2255{
2256 struct elf_sh_link_hash_table *ret;
dc810e39 2257 bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
37c644f2 2258
0e5de31a 2259 ret = (struct elf_sh_link_hash_table *) bfd_zmalloc (amt);
37c644f2
AO
2260 if (ret == (struct elf_sh_link_hash_table *) NULL)
2261 return NULL;
2262
66eb6687
AM
2263 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
2264 sh_elf_link_hash_newfunc,
4dfe6ac6
NC
2265 sizeof (struct elf_sh_link_hash_entry),
2266 SH_ELF_DATA))
37c644f2 2267 {
e2d34d7d 2268 free (ret);
37c644f2
AO
2269 return NULL;
2270 }
2271
55e6e397 2272 ret->vxworks_p = vxworks_object_p (abfd);
8e45593f 2273 ret->fdpic_p = fdpic_object_p (abfd);
067653c5 2274
37c644f2
AO
2275 return &ret->root.root;
2276}
2277
8e45593f
NC
2278static bfd_boolean
2279sh_elf_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2280 struct bfd_link_info *info, asection *p)
2281{
2282 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
2283
2284 /* Non-FDPIC binaries do not need dynamic symbols for sections. */
2285 if (!htab->fdpic_p)
2286 return TRUE;
2287
2288 /* We need dynamic symbols for every section, since segments can
2289 relocate independently. */
2290 switch (elf_section_data (p)->this_hdr.sh_type)
2291 {
2292 case SHT_PROGBITS:
2293 case SHT_NOBITS:
2294 /* If sh_type is yet undecided, assume it could be
2295 SHT_PROGBITS/SHT_NOBITS. */
2296 case SHT_NULL:
2297 return FALSE;
2298
2299 /* There shouldn't be section relative relocations
2300 against any other section. */
2301 default:
2302 return TRUE;
2303 }
2304}
2305
067653c5
AM
2306/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2307 shortcuts to them in our hash table. */
2308
b34976b6 2309static bfd_boolean
09fd220b 2310create_got_section (bfd *dynobj, struct bfd_link_info *info)
067653c5
AM
2311{
2312 struct elf_sh_link_hash_table *htab;
2313
2314 if (! _bfd_elf_create_got_section (dynobj, info))
b34976b6 2315 return FALSE;
067653c5
AM
2316
2317 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2318 if (htab == NULL)
2319 return FALSE;
2320
3d4d4302
AM
2321 htab->sfuncdesc = bfd_make_section_anyway_with_flags (dynobj, ".got.funcdesc",
2322 (SEC_ALLOC | SEC_LOAD
2323 | SEC_HAS_CONTENTS
2324 | SEC_IN_MEMORY
2325 | SEC_LINKER_CREATED));
8e45593f
NC
2326 if (htab->sfuncdesc == NULL
2327 || ! bfd_set_section_alignment (dynobj, htab->sfuncdesc, 2))
2328 return FALSE;
2329
3d4d4302
AM
2330 htab->srelfuncdesc = bfd_make_section_anyway_with_flags (dynobj,
2331 ".rela.got.funcdesc",
2332 (SEC_ALLOC | SEC_LOAD
2333 | SEC_HAS_CONTENTS
2334 | SEC_IN_MEMORY
2335 | SEC_LINKER_CREATED
2336 | SEC_READONLY));
8e45593f
NC
2337 if (htab->srelfuncdesc == NULL
2338 || ! bfd_set_section_alignment (dynobj, htab->srelfuncdesc, 2))
2339 return FALSE;
2340
2341 /* Also create .rofixup. */
3d4d4302
AM
2342 htab->srofixup = bfd_make_section_anyway_with_flags (dynobj, ".rofixup",
2343 (SEC_ALLOC | SEC_LOAD
2344 | SEC_HAS_CONTENTS
2345 | SEC_IN_MEMORY
2346 | SEC_LINKER_CREATED
2347 | SEC_READONLY));
8e45593f
NC
2348 if (htab->srofixup == NULL
2349 || ! bfd_set_section_alignment (dynobj, htab->srofixup, 2))
2350 return FALSE;
2351
b34976b6 2352 return TRUE;
067653c5
AM
2353}
2354
37c644f2
AO
2355/* Create dynamic sections when linking against a dynamic object. */
2356
b34976b6 2357static bfd_boolean
09fd220b 2358sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
37c644f2 2359{
067653c5 2360 struct elf_sh_link_hash_table *htab;
37c644f2 2361 flagword flags, pltflags;
91d6fa6a 2362 asection *s;
9c5bfbb7 2363 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
37c644f2
AO
2364 int ptralign = 0;
2365
2366 switch (bed->s->arch_size)
2367 {
2368 case 32:
2369 ptralign = 2;
2370 break;
2371
2372 case 64:
2373 ptralign = 3;
2374 break;
2375
2376 default:
2377 bfd_set_error (bfd_error_bad_value);
b34976b6 2378 return FALSE;
37c644f2
AO
2379 }
2380
067653c5 2381 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2382 if (htab == NULL)
2383 return FALSE;
2384
35cad4c4
KK
2385 if (htab->root.dynamic_sections_created)
2386 return TRUE;
067653c5 2387
37c644f2
AO
2388 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2389 .rel[a].bss sections. */
2390
2391 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2392 | SEC_LINKER_CREATED);
2393
2394 pltflags = flags;
2395 pltflags |= SEC_CODE;
2396 if (bed->plt_not_loaded)
2397 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2398 if (bed->plt_readonly)
2399 pltflags |= SEC_READONLY;
2400
3d4d4302 2401 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
ce558b89 2402 htab->root.splt = s;
35cad4c4 2403 if (s == NULL
35cad4c4
KK
2404 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2405 return FALSE;
37c644f2
AO
2406
2407 if (bed->want_plt_sym)
2408 {
2409 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2410 .plt section. */
14a793b2
AM
2411 struct elf_link_hash_entry *h;
2412 struct bfd_link_hash_entry *bh = NULL;
2413
37c644f2
AO
2414 if (! (_bfd_generic_link_add_one_symbol
2415 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
b34976b6 2416 (bfd_vma) 0, (const char *) NULL, FALSE,
14a793b2 2417 get_elf_backend_data (abfd)->collect, &bh)))
b34976b6 2418 return FALSE;
14a793b2
AM
2419
2420 h = (struct elf_link_hash_entry *) bh;
f5385ebf 2421 h->def_regular = 1;
37c644f2 2422 h->type = STT_OBJECT;
7325306f 2423 htab->root.hplt = h;
37c644f2 2424
0e1862bb 2425 if (bfd_link_pic (info)
c152c796 2426 && ! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2427 return FALSE;
37c644f2
AO
2428 }
2429
3d4d4302
AM
2430 s = bfd_make_section_anyway_with_flags (abfd,
2431 bed->default_use_rela_p
2432 ? ".rela.plt" : ".rel.plt",
2433 flags | SEC_READONLY);
ce558b89 2434 htab->root.srelplt = s;
35cad4c4 2435 if (s == NULL
35cad4c4
KK
2436 || ! bfd_set_section_alignment (abfd, s, ptralign))
2437 return FALSE;
37c644f2 2438
ce558b89 2439 if (htab->root.sgot == NULL
2293c499 2440 && !create_got_section (abfd, info))
b34976b6 2441 return FALSE;
37c644f2 2442
37c644f2
AO
2443 if (bed->want_dynbss)
2444 {
2445 /* The .dynbss section is a place to put symbols which are defined
2446 by dynamic objects, are referenced by regular objects, and are
2447 not functions. We must allocate space for them in the process
2448 image and use a R_*_COPY reloc to tell the dynamic linker to
2449 initialize them at run time. The linker script puts the .dynbss
2450 section into the .bss section of the final image. */
3d4d4302
AM
2451 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2452 SEC_ALLOC | SEC_LINKER_CREATED);
35cad4c4 2453 htab->sdynbss = s;
3496cb2a 2454 if (s == NULL)
35cad4c4 2455 return FALSE;
37c644f2
AO
2456
2457 /* The .rel[a].bss section holds copy relocs. This section is not
2458 normally needed. We need to create it here, though, so that the
2459 linker will map it to an output section. We can't just create it
2460 only if we need it, because we will not know whether we need it
2461 until we have seen all the input files, and the first time the
2462 main linker code calls BFD after examining all the input files
2463 (size_dynamic_sections) the input sections have already been
2464 mapped to the output sections. If the section turns out not to
2465 be needed, we can discard it later. We will never need this
2466 section when generating a shared object, since they do not use
2467 copy relocs. */
0e1862bb 2468 if (! bfd_link_pic (info))
37c644f2 2469 {
3d4d4302
AM
2470 s = bfd_make_section_anyway_with_flags (abfd,
2471 (bed->default_use_rela_p
2472 ? ".rela.bss" : ".rel.bss"),
2473 flags | SEC_READONLY);
067653c5 2474 htab->srelbss = s;
37c644f2 2475 if (s == NULL
37c644f2 2476 || ! bfd_set_section_alignment (abfd, s, ptralign))
b34976b6 2477 return FALSE;
37c644f2
AO
2478 }
2479 }
2480
55e6e397
RS
2481 if (htab->vxworks_p)
2482 {
2483 if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2484 return FALSE;
2485 }
2486
b34976b6 2487 return TRUE;
37c644f2
AO
2488}
2489\f
63c1f59d
AM
2490/* Find dynamic relocs for H that apply to read-only sections. */
2491
2492static asection *
2493readonly_dynrelocs (struct elf_link_hash_entry *h)
2494{
3bf083ed 2495 struct elf_dyn_relocs *p;
63c1f59d
AM
2496
2497 for (p = sh_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
2498 {
2499 asection *s = p->sec->output_section;
2500
2501 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2502 return p->sec;
2503 }
2504 return NULL;
2505}
2506
37c644f2
AO
2507/* Adjust a symbol defined by a dynamic object and referenced by a
2508 regular object. The current definition is in some section of the
2509 dynamic object, but we're not including those sections. We have to
2510 change the definition to something the rest of the link can
2511 understand. */
2512
b34976b6 2513static bfd_boolean
09fd220b
KK
2514sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2515 struct elf_link_hash_entry *h)
37c644f2 2516{
067653c5 2517 struct elf_sh_link_hash_table *htab;
37c644f2 2518 asection *s;
37c644f2 2519
2293c499 2520 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2521 if (htab == NULL)
2522 return FALSE;
37c644f2
AO
2523
2524 /* Make sure we know what is going on here. */
2293c499 2525 BFD_ASSERT (htab->root.dynobj != NULL
f5385ebf 2526 && (h->needs_plt
60d67dc8 2527 || h->is_weakalias
f5385ebf
AM
2528 || (h->def_dynamic
2529 && h->ref_regular
2530 && !h->def_regular)));
37c644f2
AO
2531
2532 /* If this is a function, put it in the procedure linkage table. We
2533 will fill in the contents of the procedure linkage table later,
2534 when we know the address of the .got section. */
2535 if (h->type == STT_FUNC
f5385ebf 2536 || h->needs_plt)
37c644f2 2537 {
067653c5 2538 if (h->plt.refcount <= 0
3d85aebe
KK
2539 || SYMBOL_CALLS_LOCAL (info, h)
2540 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2541 && h->root.type == bfd_link_hash_undefweak))
37c644f2
AO
2542 {
2543 /* This case can occur if we saw a PLT reloc in an input
2544 file, but the symbol was never referred to by a dynamic
2545 object. In such a case, we don't actually need to build
2546 a procedure linkage table, and we can just do a REL32
2547 reloc instead. */
067653c5 2548 h->plt.offset = (bfd_vma) -1;
f5385ebf 2549 h->needs_plt = 0;
37c644f2
AO
2550 }
2551
b34976b6 2552 return TRUE;
37c644f2 2553 }
067653c5
AM
2554 else
2555 h->plt.offset = (bfd_vma) -1;
37c644f2
AO
2556
2557 /* If this is a weak symbol, and there is a real definition, the
2558 processor independent code will have arranged for us to see the
2559 real definition first, and we can just use the same value. */
60d67dc8 2560 if (h->is_weakalias)
37c644f2 2561 {
60d67dc8
AM
2562 struct elf_link_hash_entry *def = weakdef (h);
2563 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2564 h->root.u.def.section = def->root.u.def.section;
2565 h->root.u.def.value = def->root.u.def.value;
04e534c3 2566 if (info->nocopyreloc)
60d67dc8 2567 h->non_got_ref = def->non_got_ref;
b34976b6 2568 return TRUE;
37c644f2
AO
2569 }
2570
2571 /* This is a reference to a symbol defined by a dynamic object which
2572 is not a function. */
2573
2574 /* If we are creating a shared library, we must presume that the
2575 only references to the symbol are via the global offset table.
2576 For such cases we need not do anything here; the relocations will
2577 be handled correctly by relocate_section. */
0e1862bb 2578 if (bfd_link_pic (info))
b34976b6 2579 return TRUE;
37c644f2
AO
2580
2581 /* If there are no references to this symbol that do not use the
2582 GOT, we don't need to generate a copy reloc. */
f5385ebf 2583 if (!h->non_got_ref)
b34976b6 2584 return TRUE;
37c644f2 2585
067653c5 2586 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 2587 if (0 && info->nocopyreloc)
067653c5 2588 {
f5385ebf 2589 h->non_got_ref = 0;
b34976b6 2590 return TRUE;
067653c5
AM
2591 }
2592
3bf083ed
AM
2593 /* If we don't find any dynamic relocs in read-only sections, then
2594 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2595 if (0 && !readonly_dynrelocs (h))
067653c5 2596 {
f5385ebf 2597 h->non_got_ref = 0;
b34976b6 2598 return TRUE;
067653c5
AM
2599 }
2600
37c644f2
AO
2601 /* We must allocate the symbol in our .dynbss section, which will
2602 become part of the .bss section of the executable. There will be
2603 an entry for this symbol in the .dynsym section. The dynamic
2604 object will contain position independent code, so all references
2605 from the dynamic object to this symbol will go through the global
2606 offset table. The dynamic linker will use the .dynsym entry to
2607 determine the address it must put in the global offset table, so
2608 both the dynamic object and the regular object will refer to the
2609 same memory location for the variable. */
2610
067653c5 2611 s = htab->sdynbss;
37c644f2
AO
2612 BFD_ASSERT (s != NULL);
2613
2614 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2615 copy the initial value out of the dynamic object and into the
2616 runtime process image. We need to remember the offset into the
2617 .rela.bss section we are going to use. */
1d7e9d18 2618 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
37c644f2
AO
2619 {
2620 asection *srel;
2621
067653c5 2622 srel = htab->srelbss;
37c644f2 2623 BFD_ASSERT (srel != NULL);
eea6121a 2624 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 2625 h->needs_copy = 1;
37c644f2
AO
2626 }
2627
6cabe1ea 2628 return _bfd_elf_adjust_dynamic_copy (info, h, s);
37c644f2
AO
2629}
2630
067653c5
AM
2631/* Allocate space in .plt, .got and associated reloc sections for
2632 dynamic relocs. */
2633
b34976b6 2634static bfd_boolean
09fd220b 2635allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
067653c5
AM
2636{
2637 struct bfd_link_info *info;
2638 struct elf_sh_link_hash_table *htab;
2639 struct elf_sh_link_hash_entry *eh;
3bf083ed 2640 struct elf_dyn_relocs *p;
067653c5
AM
2641
2642 if (h->root.type == bfd_link_hash_indirect)
b34976b6 2643 return TRUE;
067653c5 2644
067653c5
AM
2645 info = (struct bfd_link_info *) inf;
2646 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2647 if (htab == NULL)
2648 return FALSE;
067653c5 2649
4989d792
SC
2650 eh = (struct elf_sh_link_hash_entry *) h;
2651 if ((h->got.refcount > 0
f5385ebf 2652 || h->forced_local)
4989d792
SC
2653 && eh->gotplt_refcount > 0)
2654 {
2655 /* The symbol has been forced local, or we have some direct got refs,
26e41594 2656 so treat all the gotplt refs as got refs. */
4989d792
SC
2657 h->got.refcount += eh->gotplt_refcount;
2658 if (h->plt.refcount >= eh->gotplt_refcount)
2659 h->plt.refcount -= eh->gotplt_refcount;
2660 }
2661
067653c5 2662 if (htab->root.dynamic_sections_created
04e534c3
KK
2663 && h->plt.refcount > 0
2664 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2665 || h->root.type != bfd_link_hash_undefweak))
067653c5
AM
2666 {
2667 /* Make sure this symbol is output as a dynamic symbol.
2668 Undefined weak syms won't yet be marked as dynamic. */
2669 if (h->dynindx == -1
f5385ebf 2670 && !h->forced_local)
067653c5 2671 {
c152c796 2672 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2673 return FALSE;
067653c5
AM
2674 }
2675
0e1862bb 2676 if (bfd_link_pic (info)
267fb3c1 2677 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
067653c5 2678 {
ce558b89 2679 asection *s = htab->root.splt;
8e45593f 2680 const struct elf_sh_plt_info *plt_info;
067653c5
AM
2681
2682 /* If this is the first .plt entry, make room for the special
2683 first entry. */
eea6121a 2684 if (s->size == 0)
55e6e397 2685 s->size += htab->plt_info->plt0_entry_size;
067653c5 2686
eea6121a 2687 h->plt.offset = s->size;
067653c5
AM
2688
2689 /* If this symbol is not defined in a regular file, and we are
2690 not generating a shared library, then set the symbol to this
2691 location in the .plt. This is required to make function
2692 pointers compare as equal between the normal executable and
8e45593f
NC
2693 the shared library. Skip this for FDPIC, since the
2694 function's address will be the address of the canonical
2695 function descriptor. */
0e1862bb 2696 if (!htab->fdpic_p && !bfd_link_pic (info) && !h->def_regular)
067653c5
AM
2697 {
2698 h->root.u.def.section = s;
2699 h->root.u.def.value = h->plt.offset;
2700 }
2701
2702 /* Make room for this entry. */
8e45593f
NC
2703 plt_info = htab->plt_info;
2704 if (plt_info->short_plt != NULL
2705 && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT))
2706 plt_info = plt_info->short_plt;
2707 s->size += plt_info->symbol_entry_size;
067653c5
AM
2708
2709 /* We also need to make an entry in the .got.plt section, which
2710 will be placed in the .got section by the linker script. */
8e45593f 2711 if (!htab->fdpic_p)
ce558b89 2712 htab->root.sgotplt->size += 4;
8e45593f 2713 else
ce558b89 2714 htab->root.sgotplt->size += 8;
067653c5
AM
2715
2716 /* We also need to make an entry in the .rel.plt section. */
ce558b89 2717 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
55e6e397 2718
0e1862bb 2719 if (htab->vxworks_p && !bfd_link_pic (info))
55e6e397
RS
2720 {
2721 /* VxWorks executables have a second set of relocations
2722 for each PLT entry. They go in a separate relocation
2723 section, which is processed by the kernel loader. */
2724
2725 /* There is a relocation for the initial PLT entry:
2726 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
2727 if (h->plt.offset == htab->plt_info->plt0_entry_size)
2728 htab->srelplt2->size += sizeof (Elf32_External_Rela);
2729
2730 /* There are two extra relocations for each subsequent
2731 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
2732 and an R_SH_DIR32 relocation for the PLT entry. */
2733 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2;
2734 }
067653c5
AM
2735 }
2736 else
2737 {
2738 h->plt.offset = (bfd_vma) -1;
f5385ebf 2739 h->needs_plt = 0;
067653c5
AM
2740 }
2741 }
2742 else
2743 {
2744 h->plt.offset = (bfd_vma) -1;
f5385ebf 2745 h->needs_plt = 0;
067653c5
AM
2746 }
2747
2748 if (h->got.refcount > 0)
2749 {
2750 asection *s;
b34976b6 2751 bfd_boolean dyn;
85e02784 2752 enum got_type got_type = sh_elf_hash_entry (h)->got_type;
067653c5
AM
2753
2754 /* Make sure this symbol is output as a dynamic symbol.
2755 Undefined weak syms won't yet be marked as dynamic. */
2756 if (h->dynindx == -1
f5385ebf 2757 && !h->forced_local)
067653c5 2758 {
c152c796 2759 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2760 return FALSE;
067653c5
AM
2761 }
2762
ce558b89 2763 s = htab->root.sgot;
eea6121a
AM
2764 h->got.offset = s->size;
2765 s->size += 4;
3376eaf5 2766 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
8e45593f 2767 if (got_type == GOT_TLS_GD)
eea6121a 2768 s->size += 4;
067653c5 2769 dyn = htab->root.dynamic_sections_created;
8e45593f
NC
2770 if (!dyn)
2771 {
2772 /* No dynamic relocations required. */
0e1862bb 2773 if (htab->fdpic_p && !bfd_link_pic (info)
8e45593f
NC
2774 && h->root.type != bfd_link_hash_undefweak
2775 && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC))
2776 htab->srofixup->size += 4;
2777 }
87458ed2 2778 /* No dynamic relocations required when IE->LE conversion happens. */
0e1862bb
L
2779 else if (got_type == GOT_TLS_IE
2780 && !h->def_dynamic
2781 && !bfd_link_pic (info))
87458ed2 2782 ;
267fb3c1 2783 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
3376eaf5 2784 R_SH_TLS_GD needs one if local symbol and two if global. */
8e45593f
NC
2785 else if ((got_type == GOT_TLS_GD && h->dynindx == -1)
2786 || got_type == GOT_TLS_IE)
ce558b89 2787 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f 2788 else if (got_type == GOT_TLS_GD)
ce558b89 2789 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
8e45593f
NC
2790 else if (got_type == GOT_FUNCDESC)
2791 {
0e1862bb 2792 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
2793 htab->srofixup->size += 4;
2794 else
ce558b89 2795 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f 2796 }
04e534c3
KK
2797 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2798 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 2799 && (bfd_link_pic (info)
04e534c3 2800 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
ce558b89 2801 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
0e1862bb
L
2802 else if (htab->fdpic_p
2803 && !bfd_link_pic (info)
2804 && got_type == GOT_NORMAL
8e45593f
NC
2805 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2806 || h->root.type != bfd_link_hash_undefweak))
2807 htab->srofixup->size += 4;
067653c5
AM
2808 }
2809 else
2810 h->got.offset = (bfd_vma) -1;
2811
8e45593f
NC
2812 /* Allocate space for any dynamic relocations to function
2813 descriptors, canonical or otherwise. We need to relocate the
2814 reference unless it resolves to zero, which only happens for
2815 undefined weak symbols (either non-default visibility, or when
2816 static linking). Any GOT slot is accounted for elsewhere. */
2817 if (eh->abs_funcdesc_refcount > 0
2818 && (h->root.type != bfd_link_hash_undefweak
2819 || (htab->root.dynamic_sections_created
2820 && ! SYMBOL_CALLS_LOCAL (info, h))))
2821 {
0e1862bb 2822 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
2823 htab->srofixup->size += eh->abs_funcdesc_refcount * 4;
2824 else
ce558b89 2825 htab->root.srelgot->size
8e45593f
NC
2826 += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela);
2827 }
2828
2829 /* We must allocate a function descriptor if there are references to
2830 a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
2831 the dynamic linker isn't going to allocate it. None of this
2832 applies if we already created one in .got.plt, but if the
2833 canonical function descriptor can be in this object, there
2834 won't be a PLT entry at all. */
2835 if ((eh->funcdesc.refcount > 0
2836 || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC))
2837 && h->root.type != bfd_link_hash_undefweak
2838 && SYMBOL_FUNCDESC_LOCAL (info, h))
2839 {
2840 /* Make room for this function descriptor. */
2841 eh->funcdesc.offset = htab->sfuncdesc->size;
2842 htab->sfuncdesc->size += 8;
2843
2844 /* We will need a relocation or two fixups to initialize the
2845 function descriptor, so allocate those too. */
0e1862bb 2846 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
8e45593f
NC
2847 htab->srofixup->size += 8;
2848 else
2849 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
2850 }
2851
067653c5 2852 if (eh->dyn_relocs == NULL)
b34976b6 2853 return TRUE;
067653c5
AM
2854
2855 /* In the shared -Bsymbolic case, discard space allocated for
2856 dynamic pc-relative relocs against symbols which turn out to be
2857 defined in regular objects. For the normal shared case, discard
2858 space for pc-relative relocs that have become local due to symbol
2859 visibility changes. */
2860
0e1862bb 2861 if (bfd_link_pic (info))
067653c5 2862 {
3d85aebe 2863 if (SYMBOL_CALLS_LOCAL (info, h))
067653c5 2864 {
3bf083ed 2865 struct elf_dyn_relocs **pp;
067653c5
AM
2866
2867 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2868 {
2869 p->count -= p->pc_count;
2870 p->pc_count = 0;
2871 if (p->count == 0)
2872 *pp = p->next;
2873 else
2874 pp = &p->next;
2875 }
2876 }
04e534c3 2877
3348747a
NS
2878 if (htab->vxworks_p)
2879 {
3bf083ed 2880 struct elf_dyn_relocs **pp;
3348747a
NS
2881
2882 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2883 {
2884 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2885 *pp = p->next;
2886 else
2887 pp = &p->next;
2888 }
2889 }
2890
04e534c3
KK
2891 /* Also discard relocs on undefined weak syms with non-default
2892 visibility. */
22d606e9 2893 if (eh->dyn_relocs != NULL
04e534c3 2894 && h->root.type == bfd_link_hash_undefweak)
22d606e9 2895 {
6ee6e05a
L
2896 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2897 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
22d606e9
AM
2898 eh->dyn_relocs = NULL;
2899
2900 /* Make sure undefined weak symbols are output as a dynamic
2901 symbol in PIEs. */
2902 else if (h->dynindx == -1
2903 && !h->forced_local)
2904 {
2905 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2906 return FALSE;
2907 }
2908 }
067653c5
AM
2909 }
2910 else
2911 {
2912 /* For the non-shared case, discard space for relocs against
2913 symbols which turn out to need copy relocs or are not
2914 dynamic. */
2915
f5385ebf
AM
2916 if (!h->non_got_ref
2917 && ((h->def_dynamic
2918 && !h->def_regular)
067653c5
AM
2919 || (htab->root.dynamic_sections_created
2920 && (h->root.type == bfd_link_hash_undefweak
2921 || h->root.type == bfd_link_hash_undefined))))
2922 {
2923 /* Make sure this symbol is output as a dynamic symbol.
2924 Undefined weak syms won't yet be marked as dynamic. */
2925 if (h->dynindx == -1
f5385ebf 2926 && !h->forced_local)
067653c5 2927 {
c152c796 2928 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2929 return FALSE;
067653c5
AM
2930 }
2931
2932 /* If that succeeded, we know we'll be keeping all the
2933 relocs. */
2934 if (h->dynindx != -1)
2935 goto keep;
2936 }
2937
2938 eh->dyn_relocs = NULL;
2939
2940 keep: ;
2941 }
2942
2943 /* Finally, allocate space. */
2944 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2945 {
2946 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2947 sreloc->size += p->count * sizeof (Elf32_External_Rela);
8e45593f
NC
2948
2949 /* If we need relocations, we do not need fixups. */
0e1862bb 2950 if (htab->fdpic_p && !bfd_link_pic (info))
8e45593f 2951 htab->srofixup->size -= 4 * (p->count - p->pc_count);
067653c5
AM
2952 }
2953
b34976b6 2954 return TRUE;
067653c5
AM
2955}
2956
63c1f59d
AM
2957/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2958 read-only sections. */
067653c5 2959
b34976b6 2960static bfd_boolean
63c1f59d 2961maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
067653c5 2962{
63c1f59d 2963 asection *sec;
067653c5 2964
63c1f59d
AM
2965 if (h->root.type == bfd_link_hash_indirect)
2966 return TRUE;
067653c5 2967
63c1f59d
AM
2968 sec = readonly_dynrelocs (h);
2969 if (sec != NULL)
2970 {
2971 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
067653c5 2972
63c1f59d
AM
2973 info->flags |= DF_TEXTREL;
2974 info->callbacks->minfo
c1c8c1ef 2975 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 2976 sec->owner, h->root.root.string, sec);
a72f95f7 2977
63c1f59d
AM
2978 /* Not an error, just cut short the traversal. */
2979 return FALSE;
067653c5 2980 }
b34976b6 2981 return TRUE;
067653c5
AM
2982}
2983
55e6e397
RS
2984/* This function is called after all the input files have been read,
2985 and the input sections have been assigned to output sections.
2986 It's a convenient place to determine the PLT style. */
2987
2988static bfd_boolean
2989sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2990{
0e1862bb
L
2991 sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd,
2992 bfd_link_pic (info));
8e45593f 2993
0e1862bb 2994 if (sh_elf_hash_table (info)->fdpic_p && !bfd_link_relocatable (info)
04c3a755
NS
2995 && !bfd_elf_stack_segment_size (output_bfd, info,
2996 "__stacksize", DEFAULT_STACK_SIZE))
2997 return FALSE;
55e6e397
RS
2998 return TRUE;
2999}
3000
37c644f2
AO
3001/* Set the sizes of the dynamic sections. */
3002
b34976b6 3003static bfd_boolean
09fd220b
KK
3004sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3005 struct bfd_link_info *info)
37c644f2 3006{
067653c5 3007 struct elf_sh_link_hash_table *htab;
37c644f2
AO
3008 bfd *dynobj;
3009 asection *s;
b34976b6 3010 bfd_boolean relocs;
067653c5 3011 bfd *ibfd;
37c644f2 3012
067653c5 3013 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
3014 if (htab == NULL)
3015 return FALSE;
3016
067653c5 3017 dynobj = htab->root.dynobj;
37c644f2
AO
3018 BFD_ASSERT (dynobj != NULL);
3019
067653c5 3020 if (htab->root.dynamic_sections_created)
37c644f2
AO
3021 {
3022 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 3023 if (bfd_link_executable (info) && !info->nointerp)
37c644f2 3024 {
3d4d4302 3025 s = bfd_get_linker_section (dynobj, ".interp");
37c644f2 3026 BFD_ASSERT (s != NULL);
eea6121a 3027 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
37c644f2
AO
3028 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3029 }
3030 }
37c644f2 3031
067653c5
AM
3032 /* Set up .got offsets for local syms, and space for local dynamic
3033 relocs. */
c72f2fb2 3034 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
37c644f2 3035 {
067653c5
AM
3036 bfd_signed_vma *local_got;
3037 bfd_signed_vma *end_local_got;
8e45593f
NC
3038 union gotref *local_funcdesc, *end_local_funcdesc;
3039 char *local_got_type;
067653c5
AM
3040 bfd_size_type locsymcount;
3041 Elf_Internal_Shdr *symtab_hdr;
3042 asection *srel;
37c644f2 3043
0ffa91dd 3044 if (! is_sh_elf (ibfd))
37c644f2
AO
3045 continue;
3046
067653c5 3047 for (s = ibfd->sections; s != NULL; s = s->next)
37c644f2 3048 {
3bf083ed 3049 struct elf_dyn_relocs *p;
067653c5 3050
3bf083ed 3051 for (p = ((struct elf_dyn_relocs *)
067653c5
AM
3052 elf_section_data (s)->local_dynrel);
3053 p != NULL;
3054 p = p->next)
37c644f2 3055 {
067653c5
AM
3056 if (! bfd_is_abs_section (p->sec)
3057 && bfd_is_abs_section (p->sec->output_section))
3058 {
3059 /* Input section has been discarded, either because
3060 it is a copy of a linkonce section or due to
3061 linker script /DISCARD/, so we'll be discarding
3062 the relocs too. */
3063 }
3348747a
NS
3064 else if (htab->vxworks_p
3065 && strcmp (p->sec->output_section->name,
3066 ".tls_vars") == 0)
3067 {
3068 /* Relocations in vxworks .tls_vars sections are
3069 handled specially by the loader. */
3070 }
067653c5
AM
3071 else if (p->count != 0)
3072 {
3073 srel = elf_section_data (p->sec)->sreloc;
eea6121a 3074 srel->size += p->count * sizeof (Elf32_External_Rela);
067653c5 3075 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
a72f95f7
L
3076 {
3077 info->flags |= DF_TEXTREL;
871b3ab2 3078 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
a72f95f7
L
3079 p->sec->owner, p->sec);
3080 }
8e45593f
NC
3081
3082 /* If we need relocations, we do not need fixups. */
0e1862bb 3083 if (htab->fdpic_p && !bfd_link_pic (info))
8e45593f 3084 htab->srofixup->size -= 4 * (p->count - p->pc_count);
067653c5 3085 }
37c644f2
AO
3086 }
3087 }
067653c5 3088
0ffa91dd 3089 symtab_hdr = &elf_symtab_hdr (ibfd);
067653c5 3090 locsymcount = symtab_hdr->sh_info;
ce558b89
AM
3091 s = htab->root.sgot;
3092 srel = htab->root.srelgot;
8e45593f
NC
3093
3094 local_got = elf_local_got_refcounts (ibfd);
3095 if (local_got)
37c644f2 3096 {
8e45593f
NC
3097 end_local_got = local_got + locsymcount;
3098 local_got_type = sh_elf_local_got_type (ibfd);
3099 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3100 for (; local_got < end_local_got; ++local_got)
37c644f2 3101 {
8e45593f
NC
3102 if (*local_got > 0)
3103 {
3104 *local_got = s->size;
3105 s->size += 4;
3106 if (*local_got_type == GOT_TLS_GD)
3107 s->size += 4;
0e1862bb 3108 if (bfd_link_pic (info))
8e45593f
NC
3109 srel->size += sizeof (Elf32_External_Rela);
3110 else
3111 htab->srofixup->size += 4;
3112
3113 if (*local_got_type == GOT_FUNCDESC)
3114 {
3115 if (local_funcdesc == NULL)
3116 {
3117 bfd_size_type size;
3118
3119 size = locsymcount * sizeof (union gotref);
3120 local_funcdesc = (union gotref *) bfd_zalloc (ibfd,
3121 size);
3122 if (local_funcdesc == NULL)
3123 return FALSE;
3124 sh_elf_local_funcdesc (ibfd) = local_funcdesc;
3125 local_funcdesc += (local_got
3126 - elf_local_got_refcounts (ibfd));
3127 }
3128 local_funcdesc->refcount++;
3129 ++local_funcdesc;
3130 }
3131 }
3132 else
3133 *local_got = (bfd_vma) -1;
3134 ++local_got_type;
3135 }
3136 }
3137
3138 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3139 if (local_funcdesc)
3140 {
3141 end_local_funcdesc = local_funcdesc + locsymcount;
3142
3143 for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc)
3144 {
3145 if (local_funcdesc->refcount > 0)
3146 {
3147 local_funcdesc->offset = htab->sfuncdesc->size;
3148 htab->sfuncdesc->size += 8;
0e1862bb 3149 if (!bfd_link_pic (info))
8e45593f
NC
3150 htab->srofixup->size += 8;
3151 else
3152 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
3153 }
3154 else
3155 local_funcdesc->offset = MINUS_ONE;
37c644f2 3156 }
37c644f2 3157 }
8e45593f 3158
067653c5
AM
3159 }
3160
3376eaf5
KK
3161 if (htab->tls_ldm_got.refcount > 0)
3162 {
3163 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3164 relocs. */
ce558b89
AM
3165 htab->tls_ldm_got.offset = htab->root.sgot->size;
3166 htab->root.sgot->size += 8;
3167 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
3376eaf5
KK
3168 }
3169 else
3170 htab->tls_ldm_got.offset = -1;
3171
8e45593f
NC
3172 /* Only the reserved entries should be present. For FDPIC, they go at
3173 the end of .got.plt. */
3174 if (htab->fdpic_p)
3175 {
ce558b89
AM
3176 BFD_ASSERT (htab->root.sgotplt && htab->root.sgotplt->size == 12);
3177 htab->root.sgotplt->size = 0;
8e45593f
NC
3178 }
3179
067653c5
AM
3180 /* Allocate global sym .plt and .got entries, and space for global
3181 sym dynamic relocs. */
09fd220b 3182 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
067653c5 3183
8e45593f
NC
3184 /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3185 end of the FDPIC .got.plt. */
3186 if (htab->fdpic_p)
3187 {
ce558b89
AM
3188 htab->root.hgot->root.u.def.value = htab->root.sgotplt->size;
3189 htab->root.sgotplt->size += 12;
8e45593f
NC
3190 }
3191
3192 /* At the very end of the .rofixup section is a pointer to the GOT. */
3193 if (htab->fdpic_p && htab->srofixup != NULL)
3194 htab->srofixup->size += 4;
3195
067653c5
AM
3196 /* We now have determined the sizes of the various dynamic sections.
3197 Allocate memory for them. */
b34976b6 3198 relocs = FALSE;
067653c5
AM
3199 for (s = dynobj->sections; s != NULL; s = s->next)
3200 {
3201 if ((s->flags & SEC_LINKER_CREATED) == 0)
3202 continue;
3203
ce558b89
AM
3204 if (s == htab->root.splt
3205 || s == htab->root.sgot
3206 || s == htab->root.sgotplt
8e45593f
NC
3207 || s == htab->sfuncdesc
3208 || s == htab->srofixup
c456f082 3209 || s == htab->sdynbss)
067653c5
AM
3210 {
3211 /* Strip this section if we don't need it; see the
3212 comment below. */
3213 }
0112cd26 3214 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
067653c5 3215 {
ce558b89 3216 if (s->size != 0 && s != htab->root.srelplt && s != htab->srelplt2)
b34976b6 3217 relocs = TRUE;
067653c5
AM
3218
3219 /* We use the reloc_count field as a counter if we need
3220 to copy relocs into the output file. */
3221 s->reloc_count = 0;
3222 }
3223 else
37c644f2
AO
3224 {
3225 /* It's not one of our sections, so don't allocate space. */
3226 continue;
3227 }
3228
eea6121a 3229 if (s->size == 0)
37c644f2 3230 {
067653c5
AM
3231 /* If we don't need this section, strip it from the
3232 output file. This is mostly to handle .rela.bss and
3233 .rela.plt. We must create both sections in
3234 create_dynamic_sections, because they must be created
3235 before the linker maps input sections to output
3236 sections. The linker does that before
3237 adjust_dynamic_symbol is called, and it is that
3238 function which decides whether anything needs to go
3239 into these sections. */
3240
8423293d 3241 s->flags |= SEC_EXCLUDE;
37c644f2
AO
3242 continue;
3243 }
3244
c456f082
AM
3245 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3246 continue;
3247
067653c5
AM
3248 /* Allocate memory for the section contents. We use bfd_zalloc
3249 here in case unused entries are not reclaimed before the
3250 section's contents are written out. This should not happen,
3251 but this way if it does, we get a R_SH_NONE reloc instead
3252 of garbage. */
eea6121a 3253 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
067653c5 3254 if (s->contents == NULL)
b34976b6 3255 return FALSE;
37c644f2
AO
3256 }
3257
067653c5 3258 if (htab->root.dynamic_sections_created)
37c644f2
AO
3259 {
3260 /* Add some entries to the .dynamic section. We fill in the
3261 values later, in sh_elf_finish_dynamic_sections, but we
3262 must add the entries now so that we get the correct size for
3263 the .dynamic section. The DT_DEBUG entry is filled in by the
3264 dynamic linker and used by the debugger. */
dc810e39 3265#define add_dynamic_entry(TAG, VAL) \
5a580b3a 3266 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 3267
0e1862bb 3268 if (bfd_link_executable (info))
37c644f2 3269 {
067653c5 3270 if (! add_dynamic_entry (DT_DEBUG, 0))
b34976b6 3271 return FALSE;
37c644f2
AO
3272 }
3273
ce558b89 3274 if (htab->root.splt->size != 0)
37c644f2 3275 {
067653c5
AM
3276 if (! add_dynamic_entry (DT_PLTGOT, 0)
3277 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
3278 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
3279 || ! add_dynamic_entry (DT_JMPREL, 0))
b34976b6 3280 return FALSE;
37c644f2 3281 }
b4b0e149 3282 else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC))
8e45593f
NC
3283 {
3284 if (! add_dynamic_entry (DT_PLTGOT, 0))
3285 return FALSE;
3286 }
37c644f2
AO
3287
3288 if (relocs)
3289 {
067653c5
AM
3290 if (! add_dynamic_entry (DT_RELA, 0)
3291 || ! add_dynamic_entry (DT_RELASZ, 0)
3292 || ! add_dynamic_entry (DT_RELAENT,
3293 sizeof (Elf32_External_Rela)))
b34976b6 3294 return FALSE;
37c644f2 3295
067653c5
AM
3296 /* If any dynamic relocs apply to a read-only section,
3297 then we need a DT_TEXTREL entry. */
3298 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 3299 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
067653c5
AM
3300
3301 if ((info->flags & DF_TEXTREL) != 0)
3302 {
3303 if (! add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 3304 return FALSE;
067653c5 3305 }
37c644f2 3306 }
7a2b07ff
NS
3307 if (htab->vxworks_p
3308 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
3309 return FALSE;
37c644f2 3310 }
dc810e39 3311#undef add_dynamic_entry
37c644f2 3312
b34976b6 3313 return TRUE;
37c644f2 3314}
37c644f2 3315\f
8e45593f 3316/* Add a dynamic relocation to the SRELOC section. */
37c644f2 3317
8e45593f
NC
3318inline static bfd_vma
3319sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
3320 int reloc_type, long dynindx, bfd_vma addend)
37c644f2 3321{
8e45593f
NC
3322 Elf_Internal_Rela outrel;
3323 bfd_vma reloc_offset;
37c644f2 3324
8e45593f
NC
3325 outrel.r_offset = offset;
3326 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
3327 outrel.r_addend = addend;
0ffa91dd 3328
8e45593f
NC
3329 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela);
3330 BFD_ASSERT (reloc_offset < sreloc->size);
3331 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
3332 sreloc->contents + reloc_offset);
3333 sreloc->reloc_count++;
37c644f2 3334
8e45593f
NC
3335 return reloc_offset;
3336}
37c644f2 3337
8e45593f 3338/* Add an FDPIC read-only fixup. */
37c644f2 3339
8e45593f
NC
3340inline static void
3341sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset)
3342{
3343 bfd_vma fixup_offset;
3344
3345 fixup_offset = srofixup->reloc_count++ * 4;
3346 BFD_ASSERT (fixup_offset < srofixup->size);
3347 bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset);
3348}
3349
3350/* Return the offset of the generated .got section from the
3351 _GLOBAL_OFFSET_TABLE_ symbol. */
3352
3353static bfd_signed_vma
3354sh_elf_got_offset (struct elf_sh_link_hash_table *htab)
3355{
ce558b89 3356 return (htab->root.sgot->output_offset - htab->root.sgotplt->output_offset
8e45593f
NC
3357 - htab->root.hgot->root.u.def.value);
3358}
3359
3360/* Find the segment number in which OSEC, and output section, is
3361 located. */
3362
3363static unsigned
3364sh_elf_osec_to_segment (bfd *output_bfd, asection *osec)
3365{
3d301fdc
AM
3366 Elf_Internal_Phdr *p = NULL;
3367
5bc8cb6f
NC
3368 if (output_bfd->xvec->flavour == bfd_target_elf_flavour
3369 /* PR ld/17110: Do not look for output segments in an input bfd. */
3370 && output_bfd->direction != read_direction)
3d301fdc 3371 p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
8e45593f
NC
3372
3373 /* FIXME: Nothing ever says what this index is relative to. The kernel
3374 supplies data in terms of the number of load segments but this is
3375 a phdr index and the first phdr may not be a load segment. */
3376 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
3377}
3378
3379static bfd_boolean
3380sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec)
3381{
3382 unsigned seg = sh_elf_osec_to_segment (output_bfd, osec);
3383
3d301fdc
AM
3384 return (seg != (unsigned) -1
3385 && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W));
8e45593f
NC
3386}
3387
3388/* Generate the initial contents of a local function descriptor, along
3389 with any relocations or fixups required. */
3390static bfd_boolean
3391sh_elf_initialize_funcdesc (bfd *output_bfd,
3392 struct bfd_link_info *info,
3393 struct elf_link_hash_entry *h,
3394 bfd_vma offset,
3395 asection *section,
3396 bfd_vma value)
3397{
3398 struct elf_sh_link_hash_table *htab;
3399 int dynindx;
3400 bfd_vma addr, seg;
3401
3402 htab = sh_elf_hash_table (info);
3403
3404 /* FIXME: The ABI says that the offset to the function goes in the
3405 descriptor, along with the segment index. We're RELA, so it could
3406 go in the reloc instead... */
3407
3408 if (h != NULL && SYMBOL_CALLS_LOCAL (info, h))
3409 {
3410 section = h->root.u.def.section;
3411 value = h->root.u.def.value;
3412 }
3413
3414 if (h == NULL || SYMBOL_CALLS_LOCAL (info, h))
3415 {
3416 dynindx = elf_section_data (section->output_section)->dynindx;
3417 addr = value + section->output_offset;
3418 seg = sh_elf_osec_to_segment (output_bfd, section->output_section);
3419 }
3420 else
3421 {
3422 BFD_ASSERT (h->dynindx != -1);
3423 dynindx = h->dynindx;
3424 addr = seg = 0;
3425 }
3426
0e1862bb 3427 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
8e45593f
NC
3428 {
3429 if (h == NULL || h->root.type != bfd_link_hash_undefweak)
3430 {
3431 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3432 offset
3433 + htab->sfuncdesc->output_section->vma
3434 + htab->sfuncdesc->output_offset);
3435 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3436 offset + 4
3437 + htab->sfuncdesc->output_section->vma
3438 + htab->sfuncdesc->output_offset);
3439 }
3440
3441 /* There are no dynamic relocations so fill in the final
3442 address and gp value (barring fixups). */
3443 addr += section->output_section->vma;
3444 seg = htab->root.hgot->root.u.def.value
3445 + htab->root.hgot->root.u.def.section->output_section->vma
3446 + htab->root.hgot->root.u.def.section->output_offset;
3447 }
3448 else
3449 sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc,
3450 offset
3451 + htab->sfuncdesc->output_section->vma
3452 + htab->sfuncdesc->output_offset,
3453 R_SH_FUNCDESC_VALUE, dynindx, 0);
3454
3455 bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset);
3456 bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4);
3457
3458 return TRUE;
3459}
3460
3461/* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3462 VALUE is the field's value. Return bfd_reloc_ok if successful or an error
3463 otherwise. */
3464
3465static bfd_reloc_status_type
3466install_movi20_field (bfd *output_bfd, unsigned long relocation,
3467 bfd *input_bfd, asection *input_section,
3468 bfd_byte *contents, bfd_vma offset)
3469{
3470 unsigned long cur_val;
3471 bfd_byte *addr;
3472 bfd_reloc_status_type r;
3473
3474 if (offset > bfd_get_section_limit (input_bfd, input_section))
3475 return bfd_reloc_outofrange;
3476
3477 r = bfd_check_overflow (complain_overflow_signed, 20, 0,
3478 bfd_arch_bits_per_address (input_bfd), relocation);
3479 if (r != bfd_reloc_ok)
3480 return r;
3481
3482 addr = contents + offset;
3483 cur_val = bfd_get_16 (output_bfd, addr);
3484 bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr);
3485 bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2);
3486
3487 return bfd_reloc_ok;
3488}
3489
3490/* Relocate an SH ELF section. */
3491
3492static bfd_boolean
3493sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3494 bfd *input_bfd, asection *input_section,
3495 bfd_byte *contents, Elf_Internal_Rela *relocs,
3496 Elf_Internal_Sym *local_syms,
3497 asection **local_sections)
3498{
3499 struct elf_sh_link_hash_table *htab;
3500 Elf_Internal_Shdr *symtab_hdr;
3501 struct elf_link_hash_entry **sym_hashes;
3502 Elf_Internal_Rela *rel, *relend;
8e45593f 3503 bfd_vma *local_got_offsets;
e0af1f53
MR
3504 asection *sgot = NULL;
3505 asection *sgotplt = NULL;
3506 asection *splt = NULL;
3507 asection *sreloc = NULL;
3508 asection *srelgot = NULL;
8e45593f
NC
3509 bfd_boolean is_vxworks_tls;
3510 unsigned isec_segment, got_segment, plt_segment, check_segment[2];
e0af1f53 3511 bfd_boolean fdpic_p = FALSE;
8e45593f
NC
3512
3513 BFD_ASSERT (is_sh_elf (input_bfd));
3514
3515 htab = sh_elf_hash_table (info);
e0af1f53
MR
3516 if (htab != NULL)
3517 {
ce558b89
AM
3518 sgot = htab->root.sgot;
3519 sgotplt = htab->root.sgotplt;
3520 srelgot = htab->root.srelgot;
3521 splt = htab->root.splt;
e0af1f53
MR
3522 fdpic_p = htab->fdpic_p;
3523 }
8e45593f
NC
3524 symtab_hdr = &elf_symtab_hdr (input_bfd);
3525 sym_hashes = elf_sym_hashes (input_bfd);
8e45593f
NC
3526 local_got_offsets = elf_local_got_offsets (input_bfd);
3527
3528 isec_segment = sh_elf_osec_to_segment (output_bfd,
3529 input_section->output_section);
e0af1f53 3530 if (fdpic_p && sgot)
8e45593f 3531 got_segment = sh_elf_osec_to_segment (output_bfd,
e0af1f53 3532 sgot->output_section);
8e45593f
NC
3533 else
3534 got_segment = -1;
e0af1f53 3535 if (fdpic_p && splt)
8e45593f 3536 plt_segment = sh_elf_osec_to_segment (output_bfd,
e0af1f53 3537 splt->output_section);
8e45593f
NC
3538 else
3539 plt_segment = -1;
3540
8e45593f
NC
3541 /* We have to handle relocations in vxworks .tls_vars sections
3542 specially, because the dynamic loader is 'weird'. */
0e1862bb 3543 is_vxworks_tls = (htab && htab->vxworks_p && bfd_link_pic (info)
8e45593f
NC
3544 && !strcmp (input_section->output_section->name,
3545 ".tls_vars"));
3546
3547 rel = relocs;
3548 relend = relocs + input_section->reloc_count;
3549 for (; rel < relend; rel++)
3550 {
3551 int r_type;
3552 reloc_howto_type *howto;
3553 unsigned long r_symndx;
3554 Elf_Internal_Sym *sym;
3555 asection *sec;
3556 struct elf_link_hash_entry *h;
3557 bfd_vma relocation;
3558 bfd_vma addend = (bfd_vma) 0;
3559 bfd_reloc_status_type r;
3560 int seen_stt_datalabel = 0;
3561 bfd_vma off;
85e02784 3562 enum got_type got_type;
8e45593f 3563 const char *symname = NULL;
6ee6e05a 3564 bfd_boolean resolved_to_zero;
8e45593f
NC
3565
3566 r_symndx = ELF32_R_SYM (rel->r_info);
37c644f2 3567
37c644f2
AO
3568 r_type = ELF32_R_TYPE (rel->r_info);
3569
3570 /* Many of the relocs are only used for relaxing, and are
067653c5 3571 handled entirely by the relaxation code. */
d38eb334
DD
3572 if (r_type >= (int) R_SH_GNU_VTINHERIT
3573 && r_type <= (int) R_SH_LABEL)
37c644f2 3574 continue;
c5aeb40f
AO
3575 if (r_type == (int) R_SH_NONE)
3576 continue;
37c644f2
AO
3577
3578 if (r_type < 0
3579 || r_type >= R_SH_max
3580 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
06bb75c1 3581 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
8e45593f
NC
3582 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
3583 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
fbca6ad9
AO
3584 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
3585 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
3586 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
3587 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
3376eaf5
KK
3588 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
3589 && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
8e45593f
NC
3590 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6
3591 && r_type <= (int) R_SH_LAST_INVALID_RELOC_6))
37c644f2
AO
3592 {
3593 bfd_set_error (bfd_error_bad_value);
b34976b6 3594 return FALSE;
37c644f2
AO
3595 }
3596
55e6e397 3597 howto = get_howto_table (output_bfd) + r_type;
37c644f2 3598
146be91a 3599 /* For relocs that aren't partial_inplace, we get the addend from
067653c5 3600 the relocation. */
146be91a
HPN
3601 if (! howto->partial_inplace)
3602 addend = rel->r_addend;
3603
6ee6e05a 3604 resolved_to_zero = FALSE;
37c644f2
AO
3605 h = NULL;
3606 sym = NULL;
3607 sec = NULL;
8e45593f
NC
3608 check_segment[0] = -1;
3609 check_segment[1] = -1;
37c644f2
AO
3610 if (r_symndx < symtab_hdr->sh_info)
3611 {
3612 sym = local_syms + r_symndx;
3613 sec = local_sections[r_symndx];
8e45593f
NC
3614
3615 symname = bfd_elf_string_from_elf_section
3616 (input_bfd, symtab_hdr->sh_link, sym->st_name);
3617 if (symname == NULL || *symname == '\0')
3618 symname = bfd_section_name (input_bfd, sec);
3619
37c644f2
AO
3620 relocation = (sec->output_section->vma
3621 + sec->output_offset
3622 + sym->st_value);
fbca6ad9
AO
3623 /* A local symbol never has STO_SH5_ISA32, so we don't need
3624 datalabel processing here. Make sure this does not change
3625 without notice. */
3626 if ((sym->st_other & STO_SH5_ISA32) != 0)
1a72702b
AM
3627 (*info->callbacks->reloc_dangerous)
3628 (info,
38f14ab8 3629 _("unexpected STO_SH5_ISA32 on local symbol is not handled"),
1a72702b 3630 input_bfd, input_section, rel->r_offset);
ab96bf03 3631
dbaa2011 3632 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
3633 /* Handled below. */
3634 ;
0e1862bb 3635 else if (bfd_link_relocatable (info))
8a3975e6 3636 {
1049f94e 3637 /* This is a relocatable link. We don't have to change
8a3975e6
AO
3638 anything, unless the reloc is against a section symbol,
3639 in which case we have to adjust according to where the
3640 section symbol winds up in the output section. */
8a3975e6 3641 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
146be91a
HPN
3642 {
3643 if (! howto->partial_inplace)
3644 {
3645 /* For relocations with the addend in the
3646 relocation, we need just to update the addend.
3647 All real relocs are of type partial_inplace; this
3648 code is mostly for completeness. */
ab96bf03 3649 rel->r_addend += sec->output_offset;
146be91a
HPN
3650
3651 continue;
3652 }
3653
3654 /* Relocs of type partial_inplace need to pick up the
3655 contents in the contents and add the offset resulting
3656 from the changed location of the section symbol.
3657 Using _bfd_final_link_relocate (e.g. goto
3658 final_link_relocate) here would be wrong, because
3659 relocations marked pc_relative would get the current
3660 location subtracted, and we must only do that at the
3661 final link. */
3662 r = _bfd_relocate_contents (howto, input_bfd,
3663 sec->output_offset
3664 + sym->st_value,
3665 contents + rel->r_offset);
3666 goto relocation_done;
3667 }
8a3975e6
AO
3668
3669 continue;
3670 }
f8df10f4
JJ
3671 else if (! howto->partial_inplace)
3672 {
8517fae7 3673 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
f8df10f4
JJ
3674 addend = rel->r_addend;
3675 }
3676 else if ((sec->flags & SEC_MERGE)
3677 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
3678 {
3679 asection *msec;
3680
3681 if (howto->rightshift || howto->src_mask != 0xffffffff)
3682 {
4eca0228 3683 _bfd_error_handler
695344c0 3684 /* xgettext:c-format */
2dcf00ce
AM
3685 (_("%pB(%pA+%#" PRIx64 "): "
3686 "%s relocation against SEC_MERGE section"),
d003868e 3687 input_bfd, input_section,
2dcf00ce 3688 (uint64_t) rel->r_offset, howto->name);
b34976b6 3689 return FALSE;
f8df10f4
JJ
3690 }
3691
067653c5
AM
3692 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
3693 msec = sec;
3694 addend =
c629eae0 3695 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
f8df10f4
JJ
3696 - relocation;
3697 addend += msec->output_section->vma + msec->output_offset;
3698 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
3699 addend = 0;
3700 }
37c644f2
AO
3701 }
3702 else
3703 {
560e09e9
NC
3704 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
3705
ab96bf03 3706 relocation = 0;
37c644f2 3707 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8e45593f 3708 symname = h->root.root.string;
37c644f2
AO
3709 while (h->root.type == bfd_link_hash_indirect
3710 || h->root.type == bfd_link_hash_warning)
211dc24b 3711 h = (struct elf_link_hash_entry *) h->root.u.i.link;
37c644f2
AO
3712 if (h->root.type == bfd_link_hash_defined
3713 || h->root.type == bfd_link_hash_defweak)
3714 {
b34976b6 3715 bfd_boolean dyn;
067653c5 3716
e0af1f53 3717 dyn = htab ? htab->root.dynamic_sections_created : FALSE;
37c644f2
AO
3718 sec = h->root.u.def.section;
3719 /* In these cases, we don't need the relocation value.
3720 We check specially because in some obscure cases
435b1e90 3721 sec->output_section will be NULL. */
37c644f2 3722 if (r_type == R_SH_GOTPC
fbca6ad9
AO
3723 || r_type == R_SH_GOTPC_LOW16
3724 || r_type == R_SH_GOTPC_MEDLOW16
3725 || r_type == R_SH_GOTPC_MEDHI16
3726 || r_type == R_SH_GOTPC_HI16
3727 || ((r_type == R_SH_PLT32
3728 || r_type == R_SH_PLT_LOW16
3729 || r_type == R_SH_PLT_MEDLOW16
3730 || r_type == R_SH_PLT_MEDHI16
3731 || r_type == R_SH_PLT_HI16)
37c644f2 3732 && h->plt.offset != (bfd_vma) -1)
fbca6ad9 3733 || ((r_type == R_SH_GOT32
8e45593f
NC
3734 || r_type == R_SH_GOT20
3735 || r_type == R_SH_GOTFUNCDESC
3736 || r_type == R_SH_GOTFUNCDESC20
3737 || r_type == R_SH_GOTOFFFUNCDESC
3738 || r_type == R_SH_GOTOFFFUNCDESC20
3739 || r_type == R_SH_FUNCDESC
fbca6ad9
AO
3740 || r_type == R_SH_GOT_LOW16
3741 || r_type == R_SH_GOT_MEDLOW16
3742 || r_type == R_SH_GOT_MEDHI16
3743 || r_type == R_SH_GOT_HI16)
0e1862bb
L
3744 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3745 bfd_link_pic (info),
3746 h)
3747 && (! bfd_link_pic (info)
37c644f2 3748 || (! info->symbolic && h->dynindx != -1)
f5385ebf 3749 || !h->def_regular))
37c644f2
AO
3750 /* The cases above are those in which relocation is
3751 overwritten in the switch block below. The cases
3752 below are those in which we must defer relocation
3753 to run-time, because we can't resolve absolute
3754 addresses when creating a shared library. */
0e1862bb 3755 || (bfd_link_pic (info)
37c644f2 3756 && ((! info->symbolic && h->dynindx != -1)
f5385ebf 3757 || !h->def_regular)
37c644f2 3758 && ((r_type == R_SH_DIR32
f5385ebf 3759 && !h->forced_local)
f50ad433
KK
3760 || (r_type == R_SH_REL32
3761 && !SYMBOL_CALLS_LOCAL (info, h)))
37c644f2
AO
3762 && ((input_section->flags & SEC_ALLOC) != 0
3763 /* DWARF will emit R_SH_DIR32 relocations in its
3764 sections against symbols defined externally
3765 in shared libraries. We can't do anything
3766 with them here. */
067653c5 3767 || ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 3768 && h->def_dynamic)))
1448fa32
KK
3769 /* Dynamic relocs are not propagated for SEC_DEBUGGING
3770 sections because such sections are not SEC_ALLOC and
3771 thus ld.so will not process them. */
3772 || (sec->output_section == NULL
3773 && ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 3774 && h->def_dynamic))
3376eaf5 3775 || (sec->output_section == NULL
8e45593f
NC
3776 && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE
3777 || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD)))
ab96bf03
AM
3778 ;
3779 else if (sec->output_section != NULL)
3780 relocation = ((h->root.u.def.value
3781 + sec->output_section->vma
3782 + sec->output_offset)
3783 /* A STO_SH5_ISA32 causes a "bitor 1" to the
3784 symbol value, unless we've seen
3785 STT_DATALABEL on the way to it. */
3786 | ((h->other & STO_SH5_ISA32) != 0
3787 && ! seen_stt_datalabel));
0e1862bb 3788 else if (!bfd_link_relocatable (info)
1d5316ab
AM
3789 && (_bfd_elf_section_offset (output_bfd, info,
3790 input_section,
3791 rel->r_offset)
3792 != (bfd_vma) -1))
37c644f2 3793 {
4eca0228 3794 _bfd_error_handler
695344c0 3795 /* xgettext:c-format */
2dcf00ce
AM
3796 (_("%pB(%pA+%#" PRIx64 "): "
3797 "unresolvable %s relocation against symbol `%s'"),
843fe662
L
3798 input_bfd,
3799 input_section,
2dcf00ce 3800 (uint64_t) rel->r_offset,
843fe662
L
3801 howto->name,
3802 h->root.root.string);
b34976b6 3803 return FALSE;
37c644f2 3804 }
37c644f2
AO
3805 }
3806 else if (h->root.type == bfd_link_hash_undefweak)
6ee6e05a 3807 resolved_to_zero = UNDEFWEAK_NO_DYNAMIC_RELOC (info, h);
59c2e50f 3808 else if (info->unresolved_syms_in_objects == RM_IGNORE
067653c5 3809 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
ab96bf03 3810 ;
0e1862bb 3811 else if (!bfd_link_relocatable (info))
1a72702b
AM
3812 (*info->callbacks->undefined_symbol)
3813 (info, h->root.root.string, input_bfd,
3814 input_section, rel->r_offset,
3815 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
3816 || ELF_ST_VISIBILITY (h->other)));
37c644f2
AO
3817 }
3818
dbaa2011 3819 if (sec != NULL && discarded_section (sec))
e4067dbb 3820 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3821 rel, 1, relend, howto, 0, contents);
ab96bf03 3822
0e1862bb 3823 if (bfd_link_relocatable (info))
ab96bf03
AM
3824 continue;
3825
8e45593f
NC
3826 /* Check for inter-segment relocations in FDPIC files. Most
3827 relocations connect the relocation site to the location of
3828 the target symbol, but there are some exceptions below. */
3829 check_segment[0] = isec_segment;
3830 if (sec != NULL)
3831 check_segment[1] = sh_elf_osec_to_segment (output_bfd,
3832 sec->output_section);
3833 else
3834 check_segment[1] = -1;
3835
435b1e90 3836 switch ((int) r_type)
37c644f2
AO
3837 {
3838 final_link_relocate:
3839 /* COFF relocs don't use the addend. The addend is used for
435b1e90 3840 R_SH_DIR32 to be compatible with other compilers. */
37c644f2
AO
3841 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3842 contents, rel->r_offset,
3843 relocation, addend);
3844 break;
3845
3846 case R_SH_IND12W:
cd6ec716
DD
3847 goto final_link_relocate;
3848
37c644f2
AO
3849 case R_SH_DIR8WPN:
3850 case R_SH_DIR8WPZ:
3851 case R_SH_DIR8WPL:
cd6ec716
DD
3852 /* If the reloc is against the start of this section, then
3853 the assembler has already taken care of it and the reloc
3854 is here only to assist in relaxing. If the reloc is not
3855 against the start of this section, then it's against an
3856 external symbol and we must deal with it ourselves. */
3857 if (input_section->output_section->vma + input_section->output_offset
3858 != relocation)
3859 {
3860 int disp = (relocation
3861 - input_section->output_section->vma
3862 - input_section->output_offset
3863 - rel->r_offset);
3864 int mask = 0;
3865 switch (r_type)
3866 {
3867 case R_SH_DIR8WPN:
3868 case R_SH_DIR8WPZ: mask = 1; break;
3869 case R_SH_DIR8WPL: mask = 3; break;
3870 default: mask = 0; break;
3871 }
3872 if (disp & mask)
3873 {
4eca0228 3874 _bfd_error_handler
695344c0 3875 /* xgettext:c-format */
2dcf00ce
AM
3876 (_("%pB: %#" PRIx64 ": fatal: "
3877 "unaligned branch target for relax-support relocation"),
4eca0228 3878 input_section->owner,
2dcf00ce 3879 (uint64_t) rel->r_offset);
cd6ec716 3880 bfd_set_error (bfd_error_bad_value);
b34976b6 3881 return FALSE;
cd6ec716
DD
3882 }
3883 relocation -= 4;
3884 goto final_link_relocate;
3885 }
3886 r = bfd_reloc_ok;
3887 break;
37c644f2
AO
3888
3889 default:
3890 bfd_set_error (bfd_error_bad_value);
b34976b6 3891 return FALSE;
37c644f2 3892
d38eb334
DD
3893 case R_SH_DIR16:
3894 case R_SH_DIR8:
3895 case R_SH_DIR8U:
3896 case R_SH_DIR8S:
3897 case R_SH_DIR4U:
3898 goto final_link_relocate;
3899
3900 case R_SH_DIR8UL:
3901 case R_SH_DIR4UL:
3902 if (relocation & 3)
3903 {
4eca0228 3904 _bfd_error_handler
695344c0 3905 /* xgettext:c-format */
2dcf00ce
AM
3906 (_("%pB: %#" PRIx64 ": fatal: "
3907 "unaligned %s relocation %#" PRIx64),
3908 input_section->owner, (uint64_t) rel->r_offset,
3909 howto->name, (uint64_t) relocation);
d38eb334
DD
3910 bfd_set_error (bfd_error_bad_value);
3911 return FALSE;
3912 }
3913 goto final_link_relocate;
3914
3915 case R_SH_DIR8UW:
3916 case R_SH_DIR8SW:
3917 case R_SH_DIR4UW:
3918 if (relocation & 1)
3919 {
4eca0228 3920 _bfd_error_handler
695344c0 3921 /* xgettext:c-format */
2dcf00ce
AM
3922 (_("%pB: %#" PRIx64 ": fatal: "
3923 "unaligned %s relocation %#" PRIx64 ""),
4eca0228 3924 input_section->owner,
2dcf00ce
AM
3925 (uint64_t) rel->r_offset, howto->name,
3926 (uint64_t) relocation);
d38eb334
DD
3927 bfd_set_error (bfd_error_bad_value);
3928 return FALSE;
3929 }
3930 goto final_link_relocate;
3931
3932 case R_SH_PSHA:
3933 if ((signed int)relocation < -32
3934 || (signed int)relocation > 32)
3935 {
4eca0228 3936 _bfd_error_handler
695344c0 3937 /* xgettext:c-format */
2dcf00ce
AM
3938 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHA relocation %" PRId64
3939 " not in range -32..32"),
4eca0228 3940 input_section->owner,
2dcf00ce
AM
3941 (uint64_t) rel->r_offset,
3942 (int64_t) relocation);
d38eb334
DD
3943 bfd_set_error (bfd_error_bad_value);
3944 return FALSE;
3945 }
3946 goto final_link_relocate;
3947
3948 case R_SH_PSHL:
3949 if ((signed int)relocation < -16
3950 || (signed int)relocation > 16)
3951 {
4eca0228 3952 _bfd_error_handler
695344c0 3953 /* xgettext:c-format */
2dcf00ce
AM
3954 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHL relocation %" PRId64
3955 " not in range -32..32"),
4eca0228 3956 input_section->owner,
2dcf00ce
AM
3957 (uint64_t) rel->r_offset,
3958 (int64_t) relocation);
d38eb334
DD
3959 bfd_set_error (bfd_error_bad_value);
3960 return FALSE;
3961 }
3962 goto final_link_relocate;
3963
37c644f2
AO
3964 case R_SH_DIR32:
3965 case R_SH_REL32:
0e1862bb 3966 if (bfd_link_pic (info)
04e534c3 3967 && (h == NULL
6ee6e05a
L
3968 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3969 && !resolved_to_zero)
04e534c3 3970 || h->root.type != bfd_link_hash_undefweak)
cf35638d 3971 && r_symndx != STN_UNDEF
37c644f2 3972 && (input_section->flags & SEC_ALLOC) != 0
3348747a 3973 && !is_vxworks_tls
46e993b9 3974 && (r_type == R_SH_DIR32
3d85aebe 3975 || !SYMBOL_CALLS_LOCAL (info, h)))
37c644f2
AO
3976 {
3977 Elf_Internal_Rela outrel;
947216bf 3978 bfd_byte *loc;
b34976b6 3979 bfd_boolean skip, relocate;
37c644f2
AO
3980
3981 /* When generating a shared object, these relocations
3982 are copied into the output file to be resolved at run
3983 time. */
3984
3985 if (sreloc == NULL)
3986 {
83bac4b0
NC
3987 sreloc = _bfd_elf_get_dynamic_reloc_section
3988 (input_bfd, input_section, /*rela?*/ TRUE);
3989 if (sreloc == NULL)
b34976b6 3990 return FALSE;
37c644f2
AO
3991 }
3992
b34976b6
AM
3993 skip = FALSE;
3994 relocate = FALSE;
37c644f2 3995
c629eae0
JJ
3996 outrel.r_offset =
3997 _bfd_elf_section_offset (output_bfd, info, input_section,
3998 rel->r_offset);
3999 if (outrel.r_offset == (bfd_vma) -1)
b34976b6 4000 skip = TRUE;
0bb2d96a 4001 else if (outrel.r_offset == (bfd_vma) -2)
b34976b6 4002 skip = TRUE, relocate = TRUE;
37c644f2
AO
4003 outrel.r_offset += (input_section->output_section->vma
4004 + input_section->output_offset);
4005
4006 if (skip)
0bb2d96a 4007 memset (&outrel, 0, sizeof outrel);
37c644f2
AO
4008 else if (r_type == R_SH_REL32)
4009 {
4010 BFD_ASSERT (h != NULL && h->dynindx != -1);
37c644f2 4011 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
146be91a 4012 outrel.r_addend
55e6e397
RS
4013 = (howto->partial_inplace
4014 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4015 : addend);
37c644f2 4016 }
e0af1f53 4017 else if (fdpic_p
8e45593f
NC
4018 && (h == NULL
4019 || ((info->symbolic || h->dynindx == -1)
4020 && h->def_regular)))
4021 {
4022 int dynindx;
4023
4024 BFD_ASSERT (sec != NULL);
4025 BFD_ASSERT (sec->output_section != NULL);
4026 dynindx = elf_section_data (sec->output_section)->dynindx;
4027 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4028 outrel.r_addend = relocation;
4029 outrel.r_addend
4030 += (howto->partial_inplace
4031 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4032 : addend);
4033 outrel.r_addend -= sec->output_section->vma;
4034 }
37c644f2
AO
4035 else
4036 {
4037 /* h->dynindx may be -1 if this symbol was marked to
4038 become local. */
4039 if (h == NULL
4040 || ((info->symbolic || h->dynindx == -1)
f5385ebf 4041 && h->def_regular))
37c644f2 4042 {
55e6e397 4043 relocate = howto->partial_inplace;
37c644f2 4044 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
37c644f2
AO
4045 }
4046 else
4047 {
4048 BFD_ASSERT (h->dynindx != -1);
37c644f2 4049 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
37c644f2 4050 }
55e6e397
RS
4051 outrel.r_addend = relocation;
4052 outrel.r_addend
4053 += (howto->partial_inplace
4054 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4055 : addend);
37c644f2
AO
4056 }
4057
947216bf
AM
4058 loc = sreloc->contents;
4059 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4060 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
37c644f2 4061
8e45593f
NC
4062 check_segment[0] = check_segment[1] = -1;
4063
37c644f2
AO
4064 /* If this reloc is against an external symbol, we do
4065 not want to fiddle with the addend. Otherwise, we
4066 need to include the symbol value so that it becomes
4067 an addend for the dynamic reloc. */
4068 if (! relocate)
4069 continue;
4070 }
0e1862bb 4071 else if (fdpic_p && !bfd_link_pic (info)
8e45593f
NC
4072 && r_type == R_SH_DIR32
4073 && (input_section->flags & SEC_ALLOC) != 0)
4074 {
4075 bfd_vma offset;
4076
e0af1f53
MR
4077 BFD_ASSERT (htab);
4078
8e45593f
NC
4079 if (sh_elf_osec_readonly_p (output_bfd,
4080 input_section->output_section))
4081 {
4eca0228 4082 _bfd_error_handler
695344c0 4083 /* xgettext:c-format */
2dcf00ce
AM
4084 (_("%pB(%pA+%#" PRIx64 "): "
4085 "cannot emit fixup to `%s' in read-only section"),
8e45593f
NC
4086 input_bfd,
4087 input_section,
2dcf00ce 4088 (uint64_t) rel->r_offset,
8e45593f
NC
4089 symname);
4090 return FALSE;
4091 }
4092
4093 offset = _bfd_elf_section_offset (output_bfd, info,
4094 input_section, rel->r_offset);
4095 if (offset != (bfd_vma)-1)
4096 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4097 input_section->output_section->vma
4098 + input_section->output_offset
4099 + rel->r_offset);
4100
4101 check_segment[0] = check_segment[1] = -1;
4102 }
a6f713fc
KK
4103 /* We don't want warnings for non-NULL tests on undefined weak
4104 symbols. */
4105 else if (r_type == R_SH_REL32
4106 && h
1b786873 4107 && h->root.type == bfd_link_hash_undefweak)
a6f713fc 4108 check_segment[0] = check_segment[1] = -1;
37c644f2
AO
4109 goto final_link_relocate;
4110
fbca6ad9 4111 case R_SH_GOTPLT32:
fbca6ad9
AO
4112 /* Relocation is to the entry for this symbol in the
4113 procedure linkage table. */
4114
4115 if (h == NULL
f5385ebf 4116 || h->forced_local
0e1862bb 4117 || ! bfd_link_pic (info)
fbca6ad9
AO
4118 || info->symbolic
4119 || h->dynindx == -1
4120 || h->plt.offset == (bfd_vma) -1
4121 || h->got.offset != (bfd_vma) -1)
4122 goto force_got;
4123
4124 /* Relocation is to the entry for this symbol in the global
4125 offset table extension for the procedure linkage table. */
fbca6ad9 4126
e0af1f53 4127 BFD_ASSERT (htab);
067653c5 4128 BFD_ASSERT (sgotplt != NULL);
fbca6ad9 4129 relocation = (sgotplt->output_offset
55e6e397
RS
4130 + (get_plt_index (htab->plt_info, h->plt.offset)
4131 + 3) * 4);
fbca6ad9
AO
4132
4133#ifdef GOT_BIAS
4134 relocation -= GOT_BIAS;
4135#endif
4136
4137 goto final_link_relocate;
4138
4139 force_got:
37c644f2 4140 case R_SH_GOT32:
8e45593f 4141 case R_SH_GOT20:
37c644f2
AO
4142 /* Relocation is to the entry for this symbol in the global
4143 offset table. */
067653c5 4144
e0af1f53 4145 BFD_ASSERT (htab);
067653c5 4146 BFD_ASSERT (sgot != NULL);
8e45593f 4147 check_segment[0] = check_segment[1] = -1;
37c644f2
AO
4148
4149 if (h != NULL)
4150 {
b34976b6 4151 bfd_boolean dyn;
37c644f2
AO
4152
4153 off = h->got.offset;
4154 BFD_ASSERT (off != (bfd_vma) -1);
4155
067653c5 4156 dyn = htab->root.dynamic_sections_created;
0e1862bb
L
4157 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4158 bfd_link_pic (info),
4159 h)
4160 || (bfd_link_pic (info)
3d85aebe 4161 && SYMBOL_REFERENCES_LOCAL (info, h))
6ee6e05a
L
4162 || ((ELF_ST_VISIBILITY (h->other)
4163 || resolved_to_zero)
04e534c3 4164 && h->root.type == bfd_link_hash_undefweak))
37c644f2
AO
4165 {
4166 /* This is actually a static link, or it is a
4167 -Bsymbolic link and the symbol is defined
4168 locally, or the symbol was forced to be local
4169 because of a version file. We must initialize
4170 this entry in the global offset table. Since the
4171 offset must always be a multiple of 4, we use the
4172 least significant bit to record whether we have
4173 initialized it already.
4174
4175 When doing a dynamic link, we create a .rela.got
4176 relocation entry to initialize the value. This
4177 is done in the finish_dynamic_symbol routine. */
4178 if ((off & 1) != 0)
4179 off &= ~1;
4180 else
4181 {
4182 bfd_put_32 (output_bfd, relocation,
4183 sgot->contents + off);
211dc24b 4184 h->got.offset |= 1;
8e45593f
NC
4185
4186 /* If we initialize the GOT entry here with a valid
4187 symbol address, also add a fixup. */
0e1862bb 4188 if (fdpic_p && !bfd_link_pic (info)
8e45593f
NC
4189 && sh_elf_hash_entry (h)->got_type == GOT_NORMAL
4190 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4191 || h->root.type != bfd_link_hash_undefweak))
4192 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4193 sgot->output_section->vma
4194 + sgot->output_offset
4195 + off);
37c644f2
AO
4196 }
4197 }
4198
8e45593f 4199 relocation = sh_elf_got_offset (htab) + off;
37c644f2
AO
4200 }
4201 else
4202 {
37c644f2
AO
4203 BFD_ASSERT (local_got_offsets != NULL
4204 && local_got_offsets[r_symndx] != (bfd_vma) -1);
4205
4206 off = local_got_offsets[r_symndx];
4207
4208 /* The offset must always be a multiple of 4. We use
4209 the least significant bit to record whether we have
4210 already generated the necessary reloc. */
4211 if ((off & 1) != 0)
4212 off &= ~1;
4213 else
4214 {
4215 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4216
0e1862bb 4217 if (bfd_link_pic (info))
37c644f2 4218 {
37c644f2 4219 Elf_Internal_Rela outrel;
947216bf 4220 bfd_byte *loc;
37c644f2 4221
37c644f2
AO
4222 outrel.r_offset = (sgot->output_section->vma
4223 + sgot->output_offset
4224 + off);
e0af1f53 4225 if (fdpic_p)
8e45593f
NC
4226 {
4227 int dynindx
4228 = elf_section_data (sec->output_section)->dynindx;
4229 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4230 outrel.r_addend = relocation;
4231 outrel.r_addend -= sec->output_section->vma;
4232 }
4233 else
4234 {
4235 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4236 outrel.r_addend = relocation;
4237 }
947216bf
AM
4238 loc = srelgot->contents;
4239 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4240 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
37c644f2 4241 }
e0af1f53 4242 else if (fdpic_p
8e45593f
NC
4243 && (sh_elf_local_got_type (input_bfd) [r_symndx]
4244 == GOT_NORMAL))
4245 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4246 sgot->output_section->vma
4247 + sgot->output_offset
4248 + off);
37c644f2 4249
211dc24b 4250 local_got_offsets[r_symndx] |= 1;
37c644f2
AO
4251 }
4252
8e45593f 4253 relocation = sh_elf_got_offset (htab) + off;
37c644f2
AO
4254 }
4255
fbca6ad9 4256#ifdef GOT_BIAS
067653c5 4257 relocation -= GOT_BIAS;
fbca6ad9
AO
4258#endif
4259
8e45593f
NC
4260 if (r_type == R_SH_GOT20)
4261 {
4262 r = install_movi20_field (output_bfd, relocation + addend,
4263 input_bfd, input_section, contents,
4264 rel->r_offset);
4265 break;
4266 }
4267 else
4268 goto final_link_relocate;
37c644f2
AO
4269
4270 case R_SH_GOTOFF:
8e45593f 4271 case R_SH_GOTOFF20:
8e45593f
NC
4272 /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
4273 we place at the start of the .got.plt section. This is the same
4274 as the start of the output .got section, unless there are function
4275 descriptors in front of it. */
e0af1f53 4276 BFD_ASSERT (htab);
8e45593f
NC
4277 BFD_ASSERT (sgotplt != NULL);
4278 check_segment[0] = got_segment;
4279 relocation -= sgotplt->output_section->vma + sgotplt->output_offset
4280 + htab->root.hgot->root.u.def.value;
37c644f2 4281
fbca6ad9
AO
4282#ifdef GOT_BIAS
4283 relocation -= GOT_BIAS;
4284#endif
4285
4286 addend = rel->r_addend;
4287
8e45593f
NC
4288 if (r_type == R_SH_GOTOFF20)
4289 {
4290 r = install_movi20_field (output_bfd, relocation + addend,
4291 input_bfd, input_section, contents,
4292 rel->r_offset);
4293 break;
4294 }
4295 else
4296 goto final_link_relocate;
37c644f2
AO
4297
4298 case R_SH_GOTPC:
4299 /* Use global offset table as symbol value. */
4300
8e45593f
NC
4301 BFD_ASSERT (sgotplt != NULL);
4302 relocation = sgotplt->output_section->vma + sgotplt->output_offset;
37c644f2 4303
fbca6ad9
AO
4304#ifdef GOT_BIAS
4305 relocation += GOT_BIAS;
4306#endif
4307
4308 addend = rel->r_addend;
4309
37c644f2
AO
4310 goto final_link_relocate;
4311
4312 case R_SH_PLT32:
4313 /* Relocation is to the entry for this symbol in the
4314 procedure linkage table. */
4315
4316 /* Resolve a PLT reloc against a local symbol directly,
4317 without using the procedure linkage table. */
4318 if (h == NULL)
4319 goto final_link_relocate;
4320
8e45593f
NC
4321 /* We don't want to warn on calls to undefined weak symbols,
4322 as calls to them must be protected by non-NULL tests
4323 anyway, and unprotected calls would invoke undefined
4324 behavior. */
4325 if (h->root.type == bfd_link_hash_undefweak)
4326 check_segment[0] = check_segment[1] = -1;
4327
f5385ebf 4328 if (h->forced_local)
37c644f2
AO
4329 goto final_link_relocate;
4330
4331 if (h->plt.offset == (bfd_vma) -1)
4332 {
4333 /* We didn't make a PLT entry for this symbol. This
4334 happens when statically linking PIC code, or when
4335 using -Bsymbolic. */
4336 goto final_link_relocate;
4337 }
4338
067653c5 4339 BFD_ASSERT (splt != NULL);
8e45593f 4340 check_segment[1] = plt_segment;
37c644f2
AO
4341 relocation = (splt->output_section->vma
4342 + splt->output_offset
4343 + h->plt.offset);
4344
fbca6ad9
AO
4345 addend = rel->r_addend;
4346
37c644f2
AO
4347 goto final_link_relocate;
4348
8e45593f
NC
4349 /* Relocation is to the canonical function descriptor for this
4350 symbol, possibly via the GOT. Initialize the GOT
4351 entry and function descriptor if necessary. */
4352 case R_SH_GOTFUNCDESC:
4353 case R_SH_GOTFUNCDESC20:
4354 case R_SH_FUNCDESC:
4355 {
4356 int dynindx = -1;
4357 asection *reloc_section;
4358 bfd_vma reloc_offset;
4359 int reloc_type = R_SH_FUNCDESC;
4360
e0af1f53
MR
4361 BFD_ASSERT (htab);
4362
8e45593f
NC
4363 check_segment[0] = check_segment[1] = -1;
4364
4365 /* FIXME: See what FRV does for global symbols in the
4366 executable, with --export-dynamic. Do they need ld.so
4367 to allocate official descriptors? See what this code
4368 does. */
4369
4370 relocation = 0;
4371 addend = 0;
4372
4373 if (r_type == R_SH_FUNCDESC)
4374 {
4375 reloc_section = input_section;
4376 reloc_offset = rel->r_offset;
4377 }
4378 else
4379 {
e0af1f53 4380 reloc_section = sgot;
8e45593f
NC
4381
4382 if (h != NULL)
4383 reloc_offset = h->got.offset;
4384 else
4385 {
4386 BFD_ASSERT (local_got_offsets != NULL);
4387 reloc_offset = local_got_offsets[r_symndx];
4388 }
4389 BFD_ASSERT (reloc_offset != MINUS_ONE);
4390
4391 if (reloc_offset & 1)
4392 {
4393 reloc_offset &= ~1;
4394 goto funcdesc_done_got;
4395 }
4396 }
4397
4398 if (h && h->root.type == bfd_link_hash_undefweak
4399 && (SYMBOL_CALLS_LOCAL (info, h)
4400 || !htab->root.dynamic_sections_created))
4401 /* Undefined weak symbol which will not be dynamically
4402 resolved later; leave it at zero. */
4403 goto funcdesc_leave_zero;
4404 else if (SYMBOL_CALLS_LOCAL (info, h)
4405 && ! SYMBOL_FUNCDESC_LOCAL (info, h))
4406 {
4407 /* If the symbol needs a non-local function descriptor
4408 but binds locally (i.e., its visibility is
4409 protected), emit a dynamic relocation decayed to
4410 section+offset. This is an optimization; the dynamic
4411 linker would resolve our function descriptor request
4412 to our copy of the function anyway. */
4413 dynindx = elf_section_data (h->root.u.def.section
4414 ->output_section)->dynindx;
4415 relocation += h->root.u.def.section->output_offset
4416 + h->root.u.def.value;
4417 }
4418 else if (! SYMBOL_FUNCDESC_LOCAL (info, h))
4419 {
4420 /* If the symbol is dynamic and there will be dynamic
4421 symbol resolution because we are or are linked with a
4422 shared library, emit a FUNCDESC relocation such that
4423 the dynamic linker will allocate the function
4424 descriptor. */
4425 BFD_ASSERT (h->dynindx != -1);
4426 dynindx = h->dynindx;
4427 }
4428 else
4429 {
4430 bfd_vma offset;
4431
4432 /* Otherwise, we know we have a private function
4433 descriptor, so reference it directly. */
4434 reloc_type = R_SH_DIR32;
4435 dynindx = elf_section_data (htab->sfuncdesc
4436 ->output_section)->dynindx;
4437
4438 if (h)
4439 {
4440 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4441 BFD_ASSERT (offset != MINUS_ONE);
4442 if ((offset & 1) == 0)
4443 {
4444 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4445 offset, NULL, 0))
4446 return FALSE;
4447 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4448 }
4449 }
4450 else
4451 {
4452 union gotref *local_funcdesc;
4453
4454 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4455 offset = local_funcdesc[r_symndx].offset;
4456 BFD_ASSERT (offset != MINUS_ONE);
4457 if ((offset & 1) == 0)
4458 {
4459 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4460 offset, sec,
4461 sym->st_value))
4462 return FALSE;
4463 local_funcdesc[r_symndx].offset |= 1;
4464 }
4465 }
4466
4467 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4468 }
4469
0e1862bb 4470 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
4471 {
4472 bfd_vma offset;
4473
4474 if (sh_elf_osec_readonly_p (output_bfd,
4475 reloc_section->output_section))
4476 {
4eca0228 4477 _bfd_error_handler
695344c0 4478 /* xgettext:c-format */
2dcf00ce
AM
4479 (_("%pB(%pA+%#" PRIx64 "): "
4480 "cannot emit fixup to `%s' in read-only section"),
8e45593f
NC
4481 input_bfd,
4482 input_section,
2dcf00ce 4483 (uint64_t) rel->r_offset,
8e45593f
NC
4484 symname);
4485 return FALSE;
4486 }
4487
4488 offset = _bfd_elf_section_offset (output_bfd, info,
4489 reloc_section, reloc_offset);
4490
4491 if (offset != (bfd_vma)-1)
4492 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4493 offset
4494 + reloc_section->output_section->vma
4495 + reloc_section->output_offset);
4496 }
4497 else if ((reloc_section->output_section->flags
4498 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
4499 {
4500 bfd_vma offset;
4501
4502 if (sh_elf_osec_readonly_p (output_bfd,
4503 reloc_section->output_section))
4504 {
4505 info->callbacks->warning
4506 (info,
4507 _("cannot emit dynamic relocations in read-only section"),
4508 symname, input_bfd, reloc_section, reloc_offset);
4509 return FALSE;
4510 }
4511
8e45593f
NC
4512 offset = _bfd_elf_section_offset (output_bfd, info,
4513 reloc_section, reloc_offset);
4514
4515 if (offset != (bfd_vma)-1)
4516 sh_elf_add_dyn_reloc (output_bfd, srelgot,
4517 offset
4518 + reloc_section->output_section->vma
4519 + reloc_section->output_offset,
4520 reloc_type, dynindx, relocation);
4521
4522 if (r_type == R_SH_FUNCDESC)
4523 {
4524 r = bfd_reloc_ok;
4525 break;
4526 }
4527 else
4528 {
4529 relocation = 0;
4530 goto funcdesc_leave_zero;
4531 }
4532 }
4533
4534 if (SYMBOL_FUNCDESC_LOCAL (info, h))
4535 relocation += htab->sfuncdesc->output_section->vma;
4536 funcdesc_leave_zero:
4537 if (r_type != R_SH_FUNCDESC)
4538 {
4539 bfd_put_32 (output_bfd, relocation,
4540 reloc_section->contents + reloc_offset);
4541 if (h != NULL)
4542 h->got.offset |= 1;
4543 else
4544 local_got_offsets[r_symndx] |= 1;
4545
4546 funcdesc_done_got:
4547
4548 relocation = sh_elf_got_offset (htab) + reloc_offset;
4549#ifdef GOT_BIAS
4550 relocation -= GOT_BIAS;
4551#endif
4552 }
4553 if (r_type == R_SH_GOTFUNCDESC20)
4554 {
4555 r = install_movi20_field (output_bfd, relocation + addend,
4556 input_bfd, input_section, contents,
4557 rel->r_offset);
4558 break;
4559 }
4560 else
4561 goto final_link_relocate;
4562 }
4563 break;
4564
4565 case R_SH_GOTOFFFUNCDESC:
4566 case R_SH_GOTOFFFUNCDESC20:
4567 /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
4568 executable and --export-dynamic. If such symbols get
4569 ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
4570 for them. */
e0af1f53 4571 BFD_ASSERT (htab);
8e45593f
NC
4572
4573 check_segment[0] = check_segment[1] = -1;
4574 relocation = 0;
4575 addend = rel->r_addend;
4576
4577 if (h && (h->root.type == bfd_link_hash_undefweak
4578 || !SYMBOL_FUNCDESC_LOCAL (info, h)))
4579 {
4580 _bfd_error_handler
695344c0 4581 /* xgettext:c-format */
2dcf00ce
AM
4582 (_("%pB(%pA+%#" PRIx64 "): "
4583 "%s relocation against external symbol \"%s\""),
4584 input_bfd, input_section, (uint64_t) rel->r_offset,
4585 howto->name, h->root.root.string);
8e45593f
NC
4586 return FALSE;
4587 }
4588 else
4589 {
4590 bfd_vma offset;
4591
4592 /* Otherwise, we know we have a private function
4593 descriptor, so reference it directly. */
4594 if (h)
4595 {
4596 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4597 BFD_ASSERT (offset != MINUS_ONE);
4598 if ((offset & 1) == 0)
4599 {
4600 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4601 offset, NULL, 0))
4602 return FALSE;
4603 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4604 }
4605 }
4606 else
4607 {
4608 union gotref *local_funcdesc;
4609
4610 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4611 offset = local_funcdesc[r_symndx].offset;
4612 BFD_ASSERT (offset != MINUS_ONE);
4613 if ((offset & 1) == 0)
4614 {
4615 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4616 offset, sec,
4617 sym->st_value))
4618 return FALSE;
4619 local_funcdesc[r_symndx].offset |= 1;
4620 }
4621 }
4622
4623 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4624 }
4625
e0af1f53
MR
4626 relocation -= (htab->root.hgot->root.u.def.value
4627 + sgotplt->output_offset);
8e45593f
NC
4628#ifdef GOT_BIAS
4629 relocation -= GOT_BIAS;
4630#endif
4631
4632 if (r_type == R_SH_GOTOFFFUNCDESC20)
4633 {
4634 r = install_movi20_field (output_bfd, relocation + addend,
4635 input_bfd, input_section, contents,
4636 rel->r_offset);
4637 break;
4638 }
4639 else
4640 goto final_link_relocate;
4641
37c644f2
AO
4642 case R_SH_LOOP_START:
4643 {
4644 static bfd_vma start, end;
4645
4646 start = (relocation + rel->r_addend
4647 - (sec->output_section->vma + sec->output_offset));
4648 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4649 rel->r_offset, sec, start, end);
4650 break;
4651
4652 case R_SH_LOOP_END:
4653 end = (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 }
3376eaf5
KK
4659
4660 case R_SH_TLS_GD_32:
4661 case R_SH_TLS_IE_32:
e0af1f53 4662 BFD_ASSERT (htab);
8e45593f 4663 check_segment[0] = check_segment[1] = -1;
3376eaf5 4664 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
8e45593f 4665 got_type = GOT_UNKNOWN;
3376eaf5 4666 if (h == NULL && local_got_offsets)
8e45593f 4667 got_type = sh_elf_local_got_type (input_bfd) [r_symndx];
3376eaf5
KK
4668 else if (h != NULL)
4669 {
8e45593f 4670 got_type = sh_elf_hash_entry (h)->got_type;
0e1862bb 4671 if (! bfd_link_pic (info)
3376eaf5 4672 && (h->dynindx == -1
f5385ebf 4673 || h->def_regular))
267fb3c1 4674 r_type = R_SH_TLS_LE_32;
3376eaf5
KK
4675 }
4676
8e45593f 4677 if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE)
3376eaf5
KK
4678 r_type = R_SH_TLS_IE_32;
4679
4680 if (r_type == R_SH_TLS_LE_32)
4681 {
4682 bfd_vma offset;
4683 unsigned short insn;
3376eaf5
KK
4684
4685 if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
4686 {
4687 /* GD->LE transition:
4688 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
b34976b6 4689 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
3376eaf5
KK
4690 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4691 We change it into:
4692 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
4693 nop; nop; ...
4694 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
4695
4696 offset = rel->r_offset;
a05b9f5e
NC
4697 if (offset < 16)
4698 {
4699 _bfd_error_handler
4700 /* xgettext:c-format */
4701 (_("%pB(%pA): offset in relocation for GD->LE translation is too small: %#" PRIx64),
4702 input_bfd, input_section, (uint64_t) offset);
4703 return FALSE;
4704 }
4705
3376eaf5
KK
4706 /* Size of GD instructions is 16 or 18. */
4707 offset -= 16;
4708 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4709 if ((insn & 0xff00) == 0xc700)
4710 {
4711 BFD_ASSERT (offset >= 2);
4712 offset -= 2;
4713 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4714 }
4715
a05b9f5e
NC
4716 if ((insn & 0xff00) != 0xd400)
4717 _bfd_error_handler
4718 /* xgettext:c-format */ /* The backslash is to prevent bogus trigraph detection. */
4719 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd4?\?)"),
4720 input_bfd, input_section, (uint64_t) offset, (int) insn);
4721
3376eaf5 4722 insn = bfd_get_16 (input_bfd, contents + offset + 2);
a05b9f5e
NC
4723
4724 if ((insn & 0xff00) != 0xc700)
4725 _bfd_error_handler
4726 /* xgettext:c-format */
4727 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xc7?\?)"),
4728 input_bfd, input_section, (uint64_t) offset, (int) insn);
4729
3376eaf5 4730 insn = bfd_get_16 (input_bfd, contents + offset + 4);
a05b9f5e
NC
4731 if ((insn & 0xff00) != 0xd100)
4732 _bfd_error_handler
4733 /* xgettext:c-format */
4734 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd1?\?)"),
4735 input_bfd, input_section, (uint64_t) offset, (int) insn);
4736
3376eaf5 4737 insn = bfd_get_16 (input_bfd, contents + offset + 6);
a05b9f5e
NC
4738 if (insn != 0x310c)
4739 _bfd_error_handler
4740 /* xgettext:c-format */
4741 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x310c)"),
4742 input_bfd, input_section, (uint64_t) offset, (int) insn);
4743
3376eaf5 4744 insn = bfd_get_16 (input_bfd, contents + offset + 8);
a05b9f5e
NC
4745 if (insn != 0x410b)
4746 _bfd_error_handler
4747 /* xgettext:c-format */
4748 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x410b)"),
4749 input_bfd, input_section, (uint64_t) offset, (int) insn);
4750
3376eaf5 4751 insn = bfd_get_16 (input_bfd, contents + offset + 10);
a05b9f5e
NC
4752 if (insn != 0x34cc)
4753 _bfd_error_handler
4754 /* xgettext:c-format */
4755 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x34cc)"),
4756 input_bfd, input_section, (uint64_t) offset, (int) insn);
3376eaf5
KK
4757
4758 bfd_put_16 (output_bfd, 0x0012, contents + offset + 2);
4759 bfd_put_16 (output_bfd, 0x304c, contents + offset + 4);
4760 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
4761 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4762 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4763 }
4764 else
4765 {
91d6fa6a 4766 int target;
3376eaf5
KK
4767
4768 /* IE->LE transition:
a05b9f5e
NC
4769 mov.l 1f,r0;
4770 stc gbr,rN;
4771 mov.l @(r0,r12),rM;
4772 bra 2f;
4773 add ...;
4774 .align 2;
4775 1: x@GOTTPOFF;
4776 2:
3376eaf5 4777 We change it into:
a05b9f5e
NC
4778 mov.l .Ln,rM;
4779 stc gbr,rN;
4780 nop;
4781 ...;
4782 1: x@TPOFF;
4783 2:. */
3376eaf5
KK
4784
4785 offset = rel->r_offset;
a05b9f5e
NC
4786 if (offset < 16)
4787 {
4788 _bfd_error_handler
4789 /* xgettext:c-format */
4790 (_("%pB(%pA): offset in relocation for IE->LE translation is too small: %#" PRIx64),
4791 input_bfd, input_section, (uint64_t) offset);
4792 return FALSE;
4793 }
4794
3376eaf5
KK
4795 /* Size of IE instructions is 10 or 12. */
4796 offset -= 10;
4797 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4798 if ((insn & 0xf0ff) == 0x0012)
4799 {
4800 BFD_ASSERT (offset >= 2);
4801 offset -= 2;
4802 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4803 }
4804
a05b9f5e
NC
4805 if ((insn & 0xff00) != 0xd000)
4806 _bfd_error_handler
4807 /* xgettext:c-format */
4808 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd0??: mov.l)"),
4809 input_bfd, input_section, (uint64_t) offset, (int) insn);
4810
91d6fa6a 4811 target = insn & 0x00ff;
a05b9f5e 4812
3376eaf5 4813 insn = bfd_get_16 (input_bfd, contents + offset + 2);
a05b9f5e
NC
4814 if ((insn & 0xf0ff) != 0x0012)
4815 _bfd_error_handler
4816 /* xgettext:c-format */
4817 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?12: stc)"),
4818 input_bfd, input_section, (uint64_t) (offset + 2), (int) insn);
4819
3376eaf5 4820 insn = bfd_get_16 (input_bfd, contents + offset + 4);
a05b9f5e
NC
4821 if ((insn & 0xf0ff) != 0x00ce)
4822 _bfd_error_handler
4823 /* xgettext:c-format */
4824 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?ce: mov.l)"),
4825 input_bfd, input_section, (uint64_t) (offset + 4), (int) insn);
4826
91d6fa6a 4827 insn = 0xd000 | (insn & 0x0f00) | target;
3376eaf5
KK
4828 bfd_put_16 (output_bfd, insn, contents + offset + 0);
4829 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
4830 }
4831
267fb3c1
KK
4832 bfd_put_32 (output_bfd, tpoff (info, relocation),
4833 contents + rel->r_offset);
3376eaf5
KK
4834 continue;
4835 }
4836
8e45593f 4837 if (sgot == NULL || sgotplt == NULL)
3376eaf5
KK
4838 abort ();
4839
4840 if (h != NULL)
4841 off = h->got.offset;
4842 else
4843 {
4844 if (local_got_offsets == NULL)
4845 abort ();
4846
4847 off = local_got_offsets[r_symndx];
4848 }
4849
267fb3c1
KK
4850 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
4851 if (r_type == R_SH_TLS_IE_32
4852 && ! htab->root.dynamic_sections_created)
4853 {
4854 off &= ~1;
4855 bfd_put_32 (output_bfd, tpoff (info, relocation),
4856 sgot->contents + off);
8e45593f 4857 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
267fb3c1
KK
4858 contents + rel->r_offset);
4859 continue;
4860 }
4861
3376eaf5
KK
4862 if ((off & 1) != 0)
4863 off &= ~1;
26e41594 4864 else
3376eaf5
KK
4865 {
4866 Elf_Internal_Rela outrel;
947216bf 4867 bfd_byte *loc;
3376eaf5
KK
4868 int dr_type, indx;
4869
3376eaf5
KK
4870 outrel.r_offset = (sgot->output_section->vma
4871 + sgot->output_offset + off);
4872
267fb3c1 4873 if (h == NULL || h->dynindx == -1)
c95b8a7a
KK
4874 indx = 0;
4875 else
4876 indx = h->dynindx;
267fb3c1 4877
3376eaf5
KK
4878 dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
4879 R_SH_TLS_TPOFF32);
4880 if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
4881 outrel.r_addend = relocation - dtpoff_base (info);
4882 else
4883 outrel.r_addend = 0;
4884 outrel.r_info = ELF32_R_INFO (indx, dr_type);
947216bf
AM
4885 loc = srelgot->contents;
4886 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3376eaf5
KK
4887 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4888
4889 if (r_type == R_SH_TLS_GD_32)
4890 {
4891 if (indx == 0)
4892 {
4893 bfd_put_32 (output_bfd,
4894 relocation - dtpoff_base (info),
4895 sgot->contents + off + 4);
4896 }
4897 else
4898 {
4899 outrel.r_info = ELF32_R_INFO (indx,
4900 R_SH_TLS_DTPOFF32);
4901 outrel.r_offset += 4;
4902 outrel.r_addend = 0;
4903 srelgot->reloc_count++;
947216bf
AM
4904 loc += sizeof (Elf32_External_Rela);
4905 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3376eaf5
KK
4906 }
4907 }
4908
4909 if (h != NULL)
4910 h->got.offset |= 1;
4911 else
4912 local_got_offsets[r_symndx] |= 1;
4913 }
4914
4915 if (off >= (bfd_vma) -2)
4916 abort ();
4917
4918 if (r_type == (int) ELF32_R_TYPE (rel->r_info))
8e45593f 4919 relocation = sh_elf_got_offset (htab) + off;
3376eaf5
KK
4920 else
4921 {
4922 bfd_vma offset;
4923 unsigned short insn;
4924
4925 /* GD->IE transition:
4926 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4927 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4928 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4929 We change it into:
4930 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
4931 nop; nop; bra 3f; nop; .align 2;
4932 1: .long x@TPOFF; 2:...; 3:. */
4933
4934 offset = rel->r_offset;
a05b9f5e
NC
4935 if (offset < 16)
4936 {
4937 _bfd_error_handler
4938 /* xgettext:c-format */
4939 (_("%pB(%pA): offset in relocation for GD->IE translation is too small: %#" PRIx64),
4940 input_bfd, input_section, (uint64_t) offset);
4941 return FALSE;
4942 }
4943
3376eaf5
KK
4944 /* Size of GD instructions is 16 or 18. */
4945 offset -= 16;
4946 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4947 if ((insn & 0xff00) == 0xc700)
4948 {
4949 BFD_ASSERT (offset >= 2);
4950 offset -= 2;
4951 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4952 }
4953
4954 BFD_ASSERT ((insn & 0xff00) == 0xd400);
4955
4956 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
4957 bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset);
4958
4959 insn = bfd_get_16 (input_bfd, contents + offset + 2);
4960 BFD_ASSERT ((insn & 0xff00) == 0xc700);
4961 insn = bfd_get_16 (input_bfd, contents + offset + 4);
4962 BFD_ASSERT ((insn & 0xff00) == 0xd100);
4963 insn = bfd_get_16 (input_bfd, contents + offset + 6);
4964 BFD_ASSERT (insn == 0x310c);
4965 insn = bfd_get_16 (input_bfd, contents + offset + 8);
4966 BFD_ASSERT (insn == 0x410b);
4967 insn = bfd_get_16 (input_bfd, contents + offset + 10);
4968 BFD_ASSERT (insn == 0x34cc);
4969
4970 bfd_put_16 (output_bfd, 0x0412, contents + offset + 2);
4971 bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4);
4972 bfd_put_16 (output_bfd, 0x304c, contents + offset + 6);
4973 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4974 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4975
8e45593f 4976 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
3376eaf5
KK
4977 contents + rel->r_offset);
4978
4979 continue;
4980 }
4981
4982 addend = rel->r_addend;
4983
4984 goto final_link_relocate;
4985
4986 case R_SH_TLS_LD_32:
e0af1f53 4987 BFD_ASSERT (htab);
8e45593f 4988 check_segment[0] = check_segment[1] = -1;
0e1862bb 4989 if (! bfd_link_pic (info))
3376eaf5
KK
4990 {
4991 bfd_vma offset;
4992 unsigned short insn;
4993
4994 /* LD->LE transition:
4995 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4996 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4997 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
4998 We change it into:
4999 stc gbr,r0; nop; nop; nop;
5000 nop; nop; bra 3f; ...; 3:. */
5001
5002 offset = rel->r_offset;
a05b9f5e
NC
5003 if (offset < 16)
5004 {
5005 _bfd_error_handler
5006 /* xgettext:c-format */
5007 (_("%pB(%pA): offset in relocation for LD->LE translation is too small: %#" PRIx64),
5008 input_bfd, input_section, (uint64_t) offset);
5009 return FALSE;
5010 }
5011
3376eaf5
KK
5012 /* Size of LD instructions is 16 or 18. */
5013 offset -= 16;
5014 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5015 if ((insn & 0xff00) == 0xc700)
5016 {
5017 BFD_ASSERT (offset >= 2);
5018 offset -= 2;
5019 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5020 }
5021
5022 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5023 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5024 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5025 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5026 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5027 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5028 BFD_ASSERT (insn == 0x310c);
5029 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5030 BFD_ASSERT (insn == 0x410b);
5031 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5032 BFD_ASSERT (insn == 0x34cc);
5033
5034 bfd_put_16 (output_bfd, 0x0012, contents + offset + 0);
5035 bfd_put_16 (output_bfd, 0x0009, contents + offset + 2);
5036 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
5037 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
5038 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5039 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5040
5041 continue;
5042 }
5043
8e45593f 5044 if (sgot == NULL || sgotplt == NULL)
3376eaf5
KK
5045 abort ();
5046
5047 off = htab->tls_ldm_got.offset;
5048 if (off & 1)
5049 off &= ~1;
5050 else
5051 {
5052 Elf_Internal_Rela outrel;
947216bf 5053 bfd_byte *loc;
3376eaf5 5054
3376eaf5
KK
5055 outrel.r_offset = (sgot->output_section->vma
5056 + sgot->output_offset + off);
5057 outrel.r_addend = 0;
5058 outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32);
947216bf
AM
5059 loc = srelgot->contents;
5060 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3376eaf5
KK
5061 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5062 htab->tls_ldm_got.offset |= 1;
5063 }
5064
8e45593f 5065 relocation = sh_elf_got_offset (htab) + off;
3376eaf5
KK
5066 addend = rel->r_addend;
5067
5068 goto final_link_relocate;
5069
5070 case R_SH_TLS_LDO_32:
8e45593f 5071 check_segment[0] = check_segment[1] = -1;
0e1862bb 5072 if (! bfd_link_pic (info))
267fb3c1 5073 relocation = tpoff (info, relocation);
3376eaf5
KK
5074 else
5075 relocation -= dtpoff_base (info);
5076
5077 addend = rel->r_addend;
5078 goto final_link_relocate;
5079
5080 case R_SH_TLS_LE_32:
5081 {
5082 int indx;
5083 Elf_Internal_Rela outrel;
947216bf 5084 bfd_byte *loc;
3376eaf5 5085
8e45593f
NC
5086 check_segment[0] = check_segment[1] = -1;
5087
3cbc1e5e 5088 if (!bfd_link_dll (info))
267fb3c1
KK
5089 {
5090 relocation = tpoff (info, relocation);
5091 addend = rel->r_addend;
5092 goto final_link_relocate;
5093 }
5094
3376eaf5
KK
5095 if (sreloc == NULL)
5096 {
83bac4b0
NC
5097 sreloc = _bfd_elf_get_dynamic_reloc_section
5098 (input_bfd, input_section, /*rela?*/ TRUE);
5099 if (sreloc == NULL)
b34976b6 5100 return FALSE;
3376eaf5
KK
5101 }
5102
267fb3c1
KK
5103 if (h == NULL || h->dynindx == -1)
5104 indx = 0;
5105 else
5106 indx = h->dynindx;
5107
3376eaf5
KK
5108 outrel.r_offset = (input_section->output_section->vma
5109 + input_section->output_offset
5110 + rel->r_offset);
5111 outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
5112 if (indx == 0)
5113 outrel.r_addend = relocation - dtpoff_base (info);
5114 else
5115 outrel.r_addend = 0;
3376eaf5 5116
947216bf
AM
5117 loc = sreloc->contents;
5118 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5119 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3376eaf5
KK
5120 continue;
5121 }
37c644f2
AO
5122 }
5123
146be91a 5124 relocation_done:
e0af1f53 5125 if (fdpic_p && check_segment[0] != (unsigned) -1
8e45593f
NC
5126 && check_segment[0] != check_segment[1])
5127 {
5128 /* We don't want duplicate errors for undefined symbols. */
5129 if (!h || h->root.type != bfd_link_hash_undefined)
5130 {
0e1862bb 5131 if (bfd_link_pic (info))
8e45593f
NC
5132 {
5133 info->callbacks->einfo
695344c0 5134 /* xgettext:c-format */
8e45593f
NC
5135 (_("%X%C: relocation to \"%s\" references a different segment\n"),
5136 input_bfd, input_section, rel->r_offset, symname);
5137 return FALSE;
5138 }
5139 else
5140 info->callbacks->einfo
695344c0 5141 /* xgettext:c-format */
8e45593f
NC
5142 (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5143 input_bfd, input_section, rel->r_offset, symname);
5144 }
5145
fbedb42d 5146 elf_elfheader (output_bfd)->e_flags |= EF_SH_PIC;
8e45593f
NC
5147 }
5148
37c644f2
AO
5149 if (r != bfd_reloc_ok)
5150 {
5151 switch (r)
5152 {
5153 default:
5154 case bfd_reloc_outofrange:
5155 abort ();
5156 case bfd_reloc_overflow:
5157 {
5158 const char *name;
5159
5160 if (h != NULL)
dfeffb9f 5161 name = NULL;
37c644f2
AO
5162 else
5163 {
252b5132
RH
5164 name = (bfd_elf_string_from_elf_section
5165 (input_bfd, symtab_hdr->sh_link, sym->st_name));
5166 if (name == NULL)
b34976b6 5167 return FALSE;
252b5132
RH
5168 if (*name == '\0')
5169 name = bfd_section_name (input_bfd, sec);
5170 }
1a72702b
AM
5171 (*info->callbacks->reloc_overflow)
5172 (info, (h ? &h->root : NULL), name, howto->name,
5173 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
252b5132
RH
5174 }
5175 break;
5176 }
5177 }
5178 }
5179
b34976b6 5180 return TRUE;
252b5132
RH
5181}
5182
5183/* This is a version of bfd_generic_get_relocated_section_contents
5184 which uses sh_elf_relocate_section. */
5185
5186static bfd_byte *
09fd220b
KK
5187sh_elf_get_relocated_section_contents (bfd *output_bfd,
5188 struct bfd_link_info *link_info,
5189 struct bfd_link_order *link_order,
5190 bfd_byte *data,
5191 bfd_boolean relocatable,
5192 asymbol **symbols)
252b5132
RH
5193{
5194 Elf_Internal_Shdr *symtab_hdr;
5195 asection *input_section = link_order->u.indirect.section;
5196 bfd *input_bfd = input_section->owner;
5197 asection **sections = NULL;
5198 Elf_Internal_Rela *internal_relocs = NULL;
6cdc0ccc 5199 Elf_Internal_Sym *isymbuf = NULL;
252b5132
RH
5200
5201 /* We only need to handle the case of relaxing, or of having a
5202 particular set of section contents, specially. */
1049f94e 5203 if (relocatable
252b5132
RH
5204 || elf_section_data (input_section)->this_hdr.contents == NULL)
5205 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
5206 link_order, data,
1049f94e 5207 relocatable,
252b5132
RH
5208 symbols);
5209
0ffa91dd 5210 symtab_hdr = &elf_symtab_hdr (input_bfd);
252b5132
RH
5211
5212 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
eea6121a 5213 (size_t) input_section->size);
252b5132
RH
5214
5215 if ((input_section->flags & SEC_RELOC) != 0
5216 && input_section->reloc_count > 0)
5217 {
252b5132 5218 asection **secpp;
6cdc0ccc 5219 Elf_Internal_Sym *isym, *isymend;
9ad5cbcf 5220 bfd_size_type amt;
252b5132 5221
45d6a902 5222 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 5223 (input_bfd, input_section, NULL,
b34976b6 5224 (Elf_Internal_Rela *) NULL, FALSE));
252b5132
RH
5225 if (internal_relocs == NULL)
5226 goto error_return;
5227
6cdc0ccc
AM
5228 if (symtab_hdr->sh_info != 0)
5229 {
5230 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5231 if (isymbuf == NULL)
5232 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
5233 symtab_hdr->sh_info, 0,
5234 NULL, NULL, NULL);
5235 if (isymbuf == NULL)
5236 goto error_return;
5237 }
252b5132 5238
9ad5cbcf
AM
5239 amt = symtab_hdr->sh_info;
5240 amt *= sizeof (asection *);
5241 sections = (asection **) bfd_malloc (amt);
5242 if (sections == NULL && amt != 0)
252b5132
RH
5243 goto error_return;
5244
6cdc0ccc
AM
5245 isymend = isymbuf + symtab_hdr->sh_info;
5246 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
252b5132
RH
5247 {
5248 asection *isec;
5249
6cdc0ccc 5250 if (isym->st_shndx == SHN_UNDEF)
252b5132 5251 isec = bfd_und_section_ptr;
6cdc0ccc 5252 else if (isym->st_shndx == SHN_ABS)
252b5132 5253 isec = bfd_abs_section_ptr;
6cdc0ccc 5254 else if (isym->st_shndx == SHN_COMMON)
252b5132
RH
5255 isec = bfd_com_section_ptr;
5256 else
6cdc0ccc 5257 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
252b5132
RH
5258
5259 *secpp = isec;
5260 }
5261
5262 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5263 input_section, data, internal_relocs,
6cdc0ccc 5264 isymbuf, sections))
252b5132
RH
5265 goto error_return;
5266
5267 if (sections != NULL)
5268 free (sections);
6cdc0ccc
AM
5269 if (isymbuf != NULL
5270 && symtab_hdr->contents != (unsigned char *) isymbuf)
5271 free (isymbuf);
5272 if (elf_section_data (input_section)->relocs != internal_relocs)
252b5132 5273 free (internal_relocs);
252b5132
RH
5274 }
5275
5276 return data;
5277
5278 error_return:
252b5132
RH
5279 if (sections != NULL)
5280 free (sections);
6cdc0ccc
AM
5281 if (isymbuf != NULL
5282 && symtab_hdr->contents != (unsigned char *) isymbuf)
5283 free (isymbuf);
5284 if (internal_relocs != NULL
5285 && elf_section_data (input_section)->relocs != internal_relocs)
5286 free (internal_relocs);
252b5132
RH
5287 return NULL;
5288}
917583ad 5289
3376eaf5
KK
5290/* Return the base VMA address which should be subtracted from real addresses
5291 when resolving @dtpoff relocation.
5292 This is PT_TLS segment p_vaddr. */
5293
5294static bfd_vma
09fd220b 5295dtpoff_base (struct bfd_link_info *info)
3376eaf5 5296{
e1918d23
AM
5297 /* If tls_sec is NULL, we should have signalled an error already. */
5298 if (elf_hash_table (info)->tls_sec == NULL)
267fb3c1 5299 return 0;
e1918d23 5300 return elf_hash_table (info)->tls_sec->vma;
3376eaf5
KK
5301}
5302
267fb3c1
KK
5303/* Return the relocation value for R_SH_TLS_TPOFF32.. */
5304
5305static bfd_vma
09fd220b 5306tpoff (struct bfd_link_info *info, bfd_vma address)
267fb3c1 5307{
e1918d23
AM
5308 /* If tls_sec is NULL, we should have signalled an error already. */
5309 if (elf_hash_table (info)->tls_sec == NULL)
267fb3c1
KK
5310 return 0;
5311 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5312 structure which has 2 pointer fields. */
044ad7e3
KK
5313 return (address - elf_hash_table (info)->tls_sec->vma
5314 + align_power ((bfd_vma) 8,
5315 elf_hash_table (info)->tls_sec->alignment_power));
267fb3c1
KK
5316}
5317
252b5132 5318static asection *
09fd220b 5319sh_elf_gc_mark_hook (asection *sec,
07adf181
AM
5320 struct bfd_link_info *info,
5321 Elf_Internal_Rela *rel,
5322 struct elf_link_hash_entry *h,
09fd220b 5323 Elf_Internal_Sym *sym)
252b5132
RH
5324{
5325 if (h != NULL)
07adf181
AM
5326 switch (ELF32_R_TYPE (rel->r_info))
5327 {
5328 case R_SH_GNU_VTINHERIT:
5329 case R_SH_GNU_VTENTRY:
5330 return NULL;
5331 }
9ad5cbcf 5332
07adf181 5333 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH
5334}
5335
067653c5
AM
5336/* Copy the extra info we tack onto an elf_link_hash_entry. */
5337
5338static void
fcfa13d2 5339sh_elf_copy_indirect_symbol (struct bfd_link_info *info,
09fd220b
KK
5340 struct elf_link_hash_entry *dir,
5341 struct elf_link_hash_entry *ind)
067653c5
AM
5342{
5343 struct elf_sh_link_hash_entry *edir, *eind;
5344
5345 edir = (struct elf_sh_link_hash_entry *) dir;
5346 eind = (struct elf_sh_link_hash_entry *) ind;
5347
5348 if (eind->dyn_relocs != NULL)
5349 {
5350 if (edir->dyn_relocs != NULL)
5351 {
3bf083ed
AM
5352 struct elf_dyn_relocs **pp;
5353 struct elf_dyn_relocs *p;
067653c5 5354
fcfa13d2 5355 /* Add reloc counts against the indirect sym to the direct sym
067653c5
AM
5356 list. Merge any entries against the same section. */
5357 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
5358 {
3bf083ed 5359 struct elf_dyn_relocs *q;
067653c5
AM
5360
5361 for (q = edir->dyn_relocs; q != NULL; q = q->next)
5362 if (q->sec == p->sec)
5363 {
5364 q->pc_count += p->pc_count;
5365 q->count += p->count;
5366 *pp = p->next;
5367 break;
5368 }
5369 if (q == NULL)
5370 pp = &p->next;
5371 }
5372 *pp = edir->dyn_relocs;
5373 }
5374
5375 edir->dyn_relocs = eind->dyn_relocs;
5376 eind->dyn_relocs = NULL;
5377 }
4989d792
SC
5378 edir->gotplt_refcount = eind->gotplt_refcount;
5379 eind->gotplt_refcount = 0;
8e45593f 5380 edir->funcdesc.refcount += eind->funcdesc.refcount;
68ffbac6 5381 eind->funcdesc.refcount = 0;
8e45593f 5382 edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount;
68ffbac6 5383 eind->abs_funcdesc_refcount = 0;
067653c5 5384
3376eaf5
KK
5385 if (ind->root.type == bfd_link_hash_indirect
5386 && dir->got.refcount <= 0)
5387 {
8e45593f
NC
5388 edir->got_type = eind->got_type;
5389 eind->got_type = GOT_UNKNOWN;
3376eaf5
KK
5390 }
5391
04e534c3 5392 if (ind->root.type != bfd_link_hash_indirect
f5385ebf
AM
5393 && dir->dynamic_adjusted)
5394 {
5395 /* If called to transfer flags for a weakdef during processing
5396 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
5397 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
e81830c5
AM
5398 if (dir->versioned != versioned_hidden)
5399 dir->ref_dynamic |= ind->ref_dynamic;
f5385ebf
AM
5400 dir->ref_regular |= ind->ref_regular;
5401 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
5402 dir->needs_plt |= ind->needs_plt;
5403 }
04e534c3 5404 else
fcfa13d2 5405 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
067653c5
AM
5406}
5407
3376eaf5 5408static int
09fd220b
KK
5409sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
5410 int is_local)
3376eaf5 5411{
0e1862bb 5412 if (bfd_link_pic (info))
3376eaf5
KK
5413 return r_type;
5414
5415 switch (r_type)
5416 {
5417 case R_SH_TLS_GD_32:
5418 case R_SH_TLS_IE_32:
5419 if (is_local)
5420 return R_SH_TLS_LE_32;
5421 return R_SH_TLS_IE_32;
5422 case R_SH_TLS_LD_32:
5423 return R_SH_TLS_LE_32;
5424 }
5425
5426 return r_type;
5427}
5428
252b5132
RH
5429/* Look through the relocs for a section during the first phase.
5430 Since we don't do .gots or .plts, we just need to consider the
5431 virtual table relocs for gc. */
435b1e90 5432
b34976b6 5433static bfd_boolean
09fd220b
KK
5434sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
5435 const Elf_Internal_Rela *relocs)
252b5132
RH
5436{
5437 Elf_Internal_Shdr *symtab_hdr;
5582a088 5438 struct elf_link_hash_entry **sym_hashes;
067653c5 5439 struct elf_sh_link_hash_table *htab;
252b5132
RH
5440 const Elf_Internal_Rela *rel;
5441 const Elf_Internal_Rela *rel_end;
37c644f2 5442 asection *sreloc;
3376eaf5 5443 unsigned int r_type;
85e02784 5444 enum got_type got_type, old_got_type;
435b1e90 5445
37c644f2
AO
5446 sreloc = NULL;
5447
0e1862bb 5448 if (bfd_link_relocatable (info))
b34976b6 5449 return TRUE;
435b1e90 5450
65281396
AM
5451 /* Don't do anything special with non-loaded, non-alloced sections.
5452 In particular, any relocs in such sections should not affect GOT
5453 and PLT reference counting (ie. we don't allow them to create GOT
5454 or PLT entries), there's no possibility or desire to optimize TLS
5455 relocs, and there's not much point in propagating relocs to shared
5456 libs that the dynamic linker won't relocate. */
5457 if ((sec->flags & SEC_ALLOC) == 0)
5458 return TRUE;
5459
0ffa91dd
NC
5460 BFD_ASSERT (is_sh_elf (abfd));
5461
5462 symtab_hdr = &elf_symtab_hdr (abfd);
252b5132 5463 sym_hashes = elf_sym_hashes (abfd);
435b1e90 5464
067653c5 5465 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
5466 if (htab == NULL)
5467 return FALSE;
5468
252b5132
RH
5469 rel_end = relocs + sec->reloc_count;
5470 for (rel = relocs; rel < rel_end; rel++)
5471 {
5472 struct elf_link_hash_entry *h;
5473 unsigned long r_symndx;
435b1e90 5474
252b5132 5475 r_symndx = ELF32_R_SYM (rel->r_info);
3376eaf5
KK
5476 r_type = ELF32_R_TYPE (rel->r_info);
5477
252b5132 5478 if (r_symndx < symtab_hdr->sh_info)
435b1e90 5479 h = NULL;
252b5132 5480 else
396a6083
SC
5481 {
5482 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
396a6083
SC
5483 while (h->root.type == bfd_link_hash_indirect
5484 || h->root.type == bfd_link_hash_warning)
211dc24b 5485 h = (struct elf_link_hash_entry *) h->root.u.i.link;
396a6083 5486 }
435b1e90 5487
3376eaf5 5488 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
0e1862bb 5489 if (! bfd_link_pic (info)
3376eaf5
KK
5490 && r_type == R_SH_TLS_IE_32
5491 && h != NULL
5492 && h->root.type != bfd_link_hash_undefined
5493 && h->root.type != bfd_link_hash_undefweak
5494 && (h->dynindx == -1
f5385ebf 5495 || h->def_regular))
3376eaf5
KK
5496 r_type = R_SH_TLS_LE_32;
5497
8e45593f
NC
5498 if (htab->fdpic_p)
5499 switch (r_type)
5500 {
5501 case R_SH_GOTOFFFUNCDESC:
5502 case R_SH_GOTOFFFUNCDESC20:
5503 case R_SH_FUNCDESC:
5504 case R_SH_GOTFUNCDESC:
5505 case R_SH_GOTFUNCDESC20:
5506 if (h != NULL)
5507 {
5508 if (h->dynindx == -1)
5509 switch (ELF_ST_VISIBILITY (h->other))
5510 {
5511 case STV_INTERNAL:
5512 case STV_HIDDEN:
5513 break;
5514 default:
5515 bfd_elf_link_record_dynamic_symbol (info, h);
5516 break;
5517 }
5518 }
5519 break;
5520 }
5521
37c644f2 5522 /* Some relocs require a global offset table. */
ce558b89 5523 if (htab->root.sgot == NULL)
37c644f2 5524 {
3376eaf5 5525 switch (r_type)
37c644f2 5526 {
8e45593f
NC
5527 case R_SH_DIR32:
5528 /* This may require an rofixup. */
5529 if (!htab->fdpic_p)
5530 break;
1a0670f3 5531 /* Fall through. */
fbca6ad9 5532 case R_SH_GOTPLT32:
37c644f2 5533 case R_SH_GOT32:
8e45593f 5534 case R_SH_GOT20:
37c644f2 5535 case R_SH_GOTOFF:
8e45593f
NC
5536 case R_SH_GOTOFF20:
5537 case R_SH_FUNCDESC:
5538 case R_SH_GOTFUNCDESC:
5539 case R_SH_GOTFUNCDESC20:
5540 case R_SH_GOTOFFFUNCDESC:
5541 case R_SH_GOTOFFFUNCDESC20:
37c644f2 5542 case R_SH_GOTPC:
3376eaf5
KK
5543 case R_SH_TLS_GD_32:
5544 case R_SH_TLS_LD_32:
5545 case R_SH_TLS_IE_32:
8e45593f
NC
5546 if (htab->root.dynobj == NULL)
5547 htab->root.dynobj = abfd;
5548 if (!create_got_section (htab->root.dynobj, info))
5549 return FALSE;
37c644f2
AO
5550 break;
5551
5552 default:
5553 break;
5554 }
5555 }
5556
3376eaf5 5557 switch (r_type)
067653c5
AM
5558 {
5559 /* This relocation describes the C++ object vtable hierarchy.
5560 Reconstruct it for later use during GC. */
435b1e90 5561 case R_SH_GNU_VTINHERIT:
c152c796 5562 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 5563 return FALSE;
435b1e90
KH
5564 break;
5565
067653c5
AM
5566 /* This relocation describes which C++ vtable entries are actually
5567 used. Record for later use during GC. */
435b1e90 5568 case R_SH_GNU_VTENTRY:
d17e0c6e
JB
5569 BFD_ASSERT (h != NULL);
5570 if (h != NULL
5571 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 5572 return FALSE;
435b1e90 5573 break;
37c644f2 5574
3376eaf5 5575 case R_SH_TLS_IE_32:
0e1862bb 5576 if (bfd_link_pic (info))
3376eaf5
KK
5577 info->flags |= DF_STATIC_TLS;
5578
5579 /* FALLTHROUGH */
267fb3c1 5580 force_got:
3376eaf5 5581 case R_SH_TLS_GD_32:
37c644f2 5582 case R_SH_GOT32:
8e45593f 5583 case R_SH_GOT20:
8e45593f
NC
5584 case R_SH_GOTFUNCDESC:
5585 case R_SH_GOTFUNCDESC20:
3376eaf5
KK
5586 switch (r_type)
5587 {
5588 default:
8e45593f 5589 got_type = GOT_NORMAL;
3376eaf5
KK
5590 break;
5591 case R_SH_TLS_GD_32:
8e45593f 5592 got_type = GOT_TLS_GD;
3376eaf5
KK
5593 break;
5594 case R_SH_TLS_IE_32:
8e45593f
NC
5595 got_type = GOT_TLS_IE;
5596 break;
5597 case R_SH_GOTFUNCDESC:
5598 case R_SH_GOTFUNCDESC20:
5599 got_type = GOT_FUNCDESC;
3376eaf5
KK
5600 break;
5601 }
5602
37c644f2 5603 if (h != NULL)
3376eaf5 5604 {
211dc24b 5605 h->got.refcount += 1;
8e45593f 5606 old_got_type = sh_elf_hash_entry (h)->got_type;
3376eaf5 5607 }
37c644f2
AO
5608 else
5609 {
067653c5
AM
5610 bfd_signed_vma *local_got_refcounts;
5611
435b1e90 5612 /* This is a global offset table entry for a local
067653c5
AM
5613 symbol. */
5614 local_got_refcounts = elf_local_got_refcounts (abfd);
5615 if (local_got_refcounts == NULL)
37c644f2 5616 {
dc810e39 5617 bfd_size_type size;
37c644f2 5618
dc810e39 5619 size = symtab_hdr->sh_info;
067653c5 5620 size *= sizeof (bfd_signed_vma);
3376eaf5 5621 size += symtab_hdr->sh_info;
067653c5
AM
5622 local_got_refcounts = ((bfd_signed_vma *)
5623 bfd_zalloc (abfd, size));
5624 if (local_got_refcounts == NULL)
b34976b6 5625 return FALSE;
067653c5 5626 elf_local_got_refcounts (abfd) = local_got_refcounts;
8e45593f 5627 sh_elf_local_got_type (abfd)
3376eaf5 5628 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
37c644f2 5629 }
211dc24b 5630 local_got_refcounts[r_symndx] += 1;
8e45593f 5631 old_got_type = sh_elf_local_got_type (abfd) [r_symndx];
3376eaf5
KK
5632 }
5633
5634 /* If a TLS symbol is accessed using IE at least once,
5635 there is no point to use dynamic model for it. */
8e45593f
NC
5636 if (old_got_type != got_type && old_got_type != GOT_UNKNOWN
5637 && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE))
3376eaf5 5638 {
8e45593f
NC
5639 if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD)
5640 got_type = GOT_TLS_IE;
3376eaf5
KK
5641 else
5642 {
8e45593f
NC
5643 if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC)
5644 && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL))
4eca0228 5645 _bfd_error_handler
695344c0 5646 /* xgettext:c-format */
871b3ab2 5647 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
8e45593f
NC
5648 abfd, h->root.root.string);
5649 else if (old_got_type == GOT_FUNCDESC
5650 || got_type == GOT_FUNCDESC)
4eca0228 5651 _bfd_error_handler
695344c0 5652 /* xgettext:c-format */
871b3ab2 5653 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
8e45593f
NC
5654 abfd, h->root.root.string);
5655 else
4eca0228 5656 _bfd_error_handler
695344c0 5657 /* xgettext:c-format */
871b3ab2 5658 (_("%pB: `%s' accessed both as normal and thread local symbol"),
4eca0228 5659 abfd, h->root.root.string);
b34976b6 5660 return FALSE;
3376eaf5
KK
5661 }
5662 }
5663
8e45593f 5664 if (old_got_type != got_type)
3376eaf5
KK
5665 {
5666 if (h != NULL)
8e45593f 5667 sh_elf_hash_entry (h)->got_type = got_type;
3376eaf5 5668 else
8e45593f 5669 sh_elf_local_got_type (abfd) [r_symndx] = got_type;
37c644f2 5670 }
3376eaf5
KK
5671
5672 break;
5673
5674 case R_SH_TLS_LD_32:
5675 sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
37c644f2
AO
5676 break;
5677
8e45593f
NC
5678 case R_SH_FUNCDESC:
5679 case R_SH_GOTOFFFUNCDESC:
5680 case R_SH_GOTOFFFUNCDESC20:
5681 if (rel->r_addend)
5682 {
4eca0228 5683 _bfd_error_handler
871b3ab2 5684 (_("%pB: Function descriptor relocation with non-zero addend"),
8e45593f
NC
5685 abfd);
5686 return FALSE;
5687 }
5688
5689 if (h == NULL)
5690 {
5691 union gotref *local_funcdesc;
5692
5693 /* We need a function descriptor for a local symbol. */
5694 local_funcdesc = sh_elf_local_funcdesc (abfd);
5695 if (local_funcdesc == NULL)
5696 {
5697 bfd_size_type size;
5698
5699 size = symtab_hdr->sh_info * sizeof (union gotref);
8e45593f
NC
5700 local_funcdesc = (union gotref *) bfd_zalloc (abfd, size);
5701 if (local_funcdesc == NULL)
5702 return FALSE;
5703 sh_elf_local_funcdesc (abfd) = local_funcdesc;
5704 }
5705 local_funcdesc[r_symndx].refcount += 1;
5706
5707 if (r_type == R_SH_FUNCDESC)
5708 {
0e1862bb 5709 if (!bfd_link_pic (info))
8e45593f
NC
5710 htab->srofixup->size += 4;
5711 else
ce558b89 5712 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f
NC
5713 }
5714 }
5715 else
5716 {
5717 sh_elf_hash_entry (h)->funcdesc.refcount++;
5718 if (r_type == R_SH_FUNCDESC)
5719 sh_elf_hash_entry (h)->abs_funcdesc_refcount++;
5720
5721 /* If there is a function descriptor reference, then
5722 there should not be any non-FDPIC references. */
5723 old_got_type = sh_elf_hash_entry (h)->got_type;
5724 if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN)
5725 {
5726 if (old_got_type == GOT_NORMAL)
4eca0228 5727 _bfd_error_handler
695344c0 5728 /* xgettext:c-format */
871b3ab2 5729 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
8e45593f
NC
5730 abfd, h->root.root.string);
5731 else
4eca0228 5732 _bfd_error_handler
695344c0 5733 /* xgettext:c-format */
871b3ab2 5734 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
8e45593f
NC
5735 abfd, h->root.root.string);
5736 }
5737 }
5738 break;
5739
fbca6ad9 5740 case R_SH_GOTPLT32:
fbca6ad9
AO
5741 /* If this is a local symbol, we resolve it directly without
5742 creating a procedure linkage table entry. */
5743
5744 if (h == NULL
f5385ebf 5745 || h->forced_local
0e1862bb 5746 || ! bfd_link_pic (info)
fbca6ad9 5747 || info->symbolic
067653c5 5748 || h->dynindx == -1)
fbca6ad9
AO
5749 goto force_got;
5750
f5385ebf 5751 h->needs_plt = 1;
067653c5 5752 h->plt.refcount += 1;
4989d792 5753 ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
fbca6ad9
AO
5754
5755 break;
5756
37c644f2
AO
5757 case R_SH_PLT32:
5758 /* This symbol requires a procedure linkage table entry. We
5759 actually build the entry in adjust_dynamic_symbol,
5760 because this might be a case of linking PIC code which is
5761 never referenced by a dynamic object, in which case we
5762 don't need to generate a procedure linkage table entry
5763 after all. */
5764
5765 /* If this is a local symbol, we resolve it directly without
5766 creating a procedure linkage table entry. */
5767 if (h == NULL)
5768 continue;
5769
f5385ebf 5770 if (h->forced_local)
37c644f2
AO
5771 break;
5772
f5385ebf 5773 h->needs_plt = 1;
067653c5 5774 h->plt.refcount += 1;
37c644f2
AO
5775 break;
5776
5777 case R_SH_DIR32:
5778 case R_SH_REL32:
0e1862bb 5779 if (h != NULL && ! bfd_link_pic (info))
067653c5 5780 {
f5385ebf 5781 h->non_got_ref = 1;
067653c5
AM
5782 h->plt.refcount += 1;
5783 }
37c644f2
AO
5784
5785 /* If we are creating a shared library, and this is a reloc
5786 against a global symbol, or a non PC relative reloc
5787 against a local symbol, then we need to copy the reloc
5788 into the shared library. However, if we are linking with
5789 -Bsymbolic, we do not need to copy a reloc against a
5790 global symbol which is defined in an object we are
5791 including in the link (i.e., DEF_REGULAR is set). At
5792 this point we have not seen all the input files, so it is
5793 possible that DEF_REGULAR is not set now but will be set
5794 later (it is never cleared). We account for that
5795 possibility below by storing information in the
067653c5
AM
5796 dyn_relocs field of the hash table entry. A similar
5797 situation occurs when creating shared libraries and symbol
5798 visibility changes render the symbol local.
5799
5800 If on the other hand, we are creating an executable, we
5801 may need to keep relocations for symbols satisfied by a
5802 dynamic library if we manage to avoid copy relocs for the
5803 symbol. */
0e1862bb 5804 if ((bfd_link_pic (info)
067653c5 5805 && (sec->flags & SEC_ALLOC) != 0
3376eaf5 5806 && (r_type != R_SH_REL32
067653c5
AM
5807 || (h != NULL
5808 && (! info->symbolic
5809 || h->root.type == bfd_link_hash_defweak
f5385ebf 5810 || !h->def_regular))))
0e1862bb 5811 || (! bfd_link_pic (info)
067653c5
AM
5812 && (sec->flags & SEC_ALLOC) != 0
5813 && h != NULL
5814 && (h->root.type == bfd_link_hash_defweak
f5385ebf 5815 || !h->def_regular)))
37c644f2 5816 {
3bf083ed
AM
5817 struct elf_dyn_relocs *p;
5818 struct elf_dyn_relocs **head;
067653c5 5819
2293c499
AM
5820 if (htab->root.dynobj == NULL)
5821 htab->root.dynobj = abfd;
067653c5 5822
37c644f2
AO
5823 /* When creating a shared object, we must copy these
5824 reloc types into the output file. We create a reloc
5825 section in dynobj and make room for this reloc. */
5826 if (sreloc == NULL)
5827 {
83bac4b0
NC
5828 sreloc = _bfd_elf_make_dynamic_reloc_section
5829 (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE);
37c644f2 5830
37c644f2 5831 if (sreloc == NULL)
83bac4b0 5832 return FALSE;
37c644f2
AO
5833 }
5834
067653c5
AM
5835 /* If this is a global symbol, we count the number of
5836 relocations we need for this symbol. */
5837 if (h != NULL)
5838 head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs;
5839 else
37c644f2 5840 {
87d72d41 5841 /* Track dynamic relocs needed for local syms too. */
067653c5 5842 asection *s;
6edfbbad 5843 void *vpp;
87d72d41 5844 Elf_Internal_Sym *isym;
37c644f2 5845
87d72d41
AM
5846 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5847 abfd, r_symndx);
5848 if (isym == NULL)
b34976b6 5849 return FALSE;
37c644f2 5850
87d72d41
AM
5851 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5852 if (s == NULL)
5853 s = sec;
5854
6edfbbad 5855 vpp = &elf_section_data (s)->local_dynrel;
3bf083ed 5856 head = (struct elf_dyn_relocs **) vpp;
067653c5 5857 }
37c644f2 5858
067653c5
AM
5859 p = *head;
5860 if (p == NULL || p->sec != sec)
5861 {
5862 bfd_size_type amt = sizeof (*p);
2293c499 5863 p = bfd_alloc (htab->root.dynobj, amt);
37c644f2 5864 if (p == NULL)
b34976b6 5865 return FALSE;
067653c5
AM
5866 p->next = *head;
5867 *head = p;
5868 p->sec = sec;
5869 p->count = 0;
5870 p->pc_count = 0;
37c644f2 5871 }
067653c5
AM
5872
5873 p->count += 1;
211dc24b 5874 if (r_type == R_SH_REL32)
067653c5 5875 p->pc_count += 1;
37c644f2
AO
5876 }
5877
8e45593f
NC
5878 /* Allocate the fixup regardless of whether we need a relocation.
5879 If we end up generating the relocation, we'll unallocate the
5880 fixup. */
0e1862bb 5881 if (htab->fdpic_p && !bfd_link_pic (info)
8e45593f
NC
5882 && r_type == R_SH_DIR32
5883 && (sec->flags & SEC_ALLOC) != 0)
5884 htab->srofixup->size += 4;
37c644f2 5885 break;
3376eaf5
KK
5886
5887 case R_SH_TLS_LE_32:
3cbc1e5e 5888 if (bfd_link_dll (info))
3376eaf5 5889 {
4eca0228 5890 _bfd_error_handler
871b3ab2 5891 (_("%pB: TLS local exec code cannot be linked into shared objects"),
d003868e 5892 abfd);
b34976b6 5893 return FALSE;
3376eaf5
KK
5894 }
5895
267fb3c1 5896 break;
3376eaf5 5897
3376eaf5 5898 case R_SH_TLS_LDO_32:
267fb3c1 5899 /* Nothing to do. */
3376eaf5
KK
5900 break;
5901
5902 default:
5903 break;
435b1e90 5904 }
252b5132 5905 }
435b1e90 5906
b34976b6 5907 return TRUE;
252b5132
RH
5908}
5909
fbca6ad9 5910#ifndef sh_elf_set_mach_from_flags
f6f9408f
JR
5911static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
5912
b34976b6 5913static bfd_boolean
09fd220b 5914sh_elf_set_mach_from_flags (bfd *abfd)
d4845d57 5915{
f6f9408f
JR
5916 flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
5917
f461bbd8 5918 if (flags >= ARRAY_SIZE (sh_ef_bfd_table))
f6f9408f
JR
5919 return FALSE;
5920
5921 if (sh_ef_bfd_table[flags] == 0)
5922 return FALSE;
68ffbac6 5923
f6f9408f 5924 bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
d4845d57 5925
b34976b6 5926 return TRUE;
d4845d57 5927}
f6f9408f
JR
5928
5929
5930/* Reverse table lookup for sh_ef_bfd_table[].
5931 Given a bfd MACH value from archures.c
5932 return the equivalent ELF flags from the table.
5933 Return -1 if no match is found. */
5934
5935int
5936sh_elf_get_flags_from_mach (unsigned long mach)
5937{
4195f552 5938 int i = ARRAY_SIZE (sh_ef_bfd_table) - 1;
68ffbac6 5939
f6f9408f
JR
5940 for (; i>0; i--)
5941 if (sh_ef_bfd_table[i] == mach)
5942 return i;
68ffbac6 5943
f6f9408f
JR
5944 /* shouldn't get here */
5945 BFD_FAIL();
5946
5947 return -1;
5948}
fbca6ad9 5949#endif /* not sh_elf_set_mach_from_flags */
d4845d57 5950
fbca6ad9 5951#ifndef sh_elf_copy_private_data
d4845d57 5952/* Copy backend specific data from one object module to another */
435b1e90 5953
b34976b6 5954static bfd_boolean
09fd220b 5955sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
d4845d57 5956{
0ffa91dd
NC
5957 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
5958 return TRUE;
5959
e2349352
L
5960 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
5961 return FALSE;
5962
5963 return sh_elf_set_mach_from_flags (obfd);
d4845d57 5964}
fbca6ad9 5965#endif /* not sh_elf_copy_private_data */
d4845d57 5966
fbca6ad9 5967#ifndef sh_elf_merge_private_data
d4845d57 5968
f6f9408f
JR
5969/* This function returns the ELF architecture number that
5970 corresponds to the given arch_sh* flags. */
85fbca6a 5971
f6f9408f
JR
5972int
5973sh_find_elf_flags (unsigned int arch_set)
d4845d57 5974{
85fbca6a 5975 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
f6f9408f 5976 unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
d4845d57 5977
f6f9408f
JR
5978 return sh_elf_get_flags_from_mach (bfd_mach);
5979}
f6f9408f 5980
1047201f
AM
5981/* Merge the architecture type of two BFD files, such that the
5982 resultant architecture supports all the features required
5983 by the two input BFDs.
5984 If the input BFDs are multually incompatible - i.e. one uses
5985 DSP while the other uses FPU - or there is no known architecture
5986 that fits the requirements then an error is emitted. */
5987
5988static bfd_boolean
50e03d47 5989sh_merge_bfd_arch (bfd *ibfd, struct bfd_link_info *info)
1047201f 5990{
50e03d47 5991 bfd *obfd = info->output_bfd;
1047201f
AM
5992 unsigned int old_arch, new_arch, merged_arch;
5993
50e03d47 5994 if (! _bfd_generic_verify_endian_match (ibfd, info))
1047201f
AM
5995 return FALSE;
5996
5997 old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd));
5998 new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd));
5999
6000 merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch);
6001
6002 if (!SH_VALID_CO_ARCH_SET (merged_arch))
6003 {
6004 _bfd_error_handler
695344c0 6005 /* xgettext:c-format */
871b3ab2 6006 (_("%pB: uses %s instructions while previous modules "
695344c0 6007 "use %s instructions"),
1047201f
AM
6008 ibfd,
6009 SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point",
6010 SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp");
6011 bfd_set_error (bfd_error_bad_value);
6012 return FALSE;
6013 }
6014 else if (!SH_VALID_ARCH_SET (merged_arch))
6015 {
6016 _bfd_error_handler
695344c0
NC
6017 /* xgettext:c-format */
6018 (_("internal error: merge of architecture '%s' with "
6019 "architecture '%s' produced unknown architecture"),
1047201f
AM
6020 bfd_printable_name (obfd),
6021 bfd_printable_name (ibfd));
6022 bfd_set_error (bfd_error_bad_value);
6023 return FALSE;
6024 }
6025
6026 bfd_default_set_arch_mach (obfd, bfd_arch_sh,
6027 sh_get_bfd_mach_from_arch_set (merged_arch));
6028
6029 return TRUE;
6030}
6031
f6f9408f
JR
6032/* This routine initialises the elf flags when required and
6033 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
d4845d57 6034
f6f9408f 6035static bfd_boolean
50e03d47 6036sh_elf_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
f6f9408f 6037{
50e03d47 6038 bfd *obfd = info->output_bfd;
85fbca6a 6039
0ffa91dd 6040 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
b34976b6 6041 return TRUE;
d4845d57
JR
6042
6043 if (! elf_flags_init (obfd))
6044 {
a39b79b9 6045 /* This happens when ld starts out with a 'blank' output file. */
b34976b6 6046 elf_flags_init (obfd) = TRUE;
8e45593f 6047 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
f6f9408f 6048 sh_elf_set_mach_from_flags (obfd);
8e45593f 6049 if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC)
fbedb42d 6050 elf_elfheader (obfd)->e_flags &= ~EF_SH_PIC;
d4845d57 6051 }
d4845d57 6052
50e03d47 6053 if (! sh_merge_bfd_arch (ibfd, info))
1d70c7fb 6054 {
871b3ab2 6055 _bfd_error_handler (_("%pB: uses instructions which are incompatible "
695344c0 6056 "with instructions used in previous modules"),
d003868e 6057 ibfd);
1d70c7fb
AO
6058 bfd_set_error (bfd_error_bad_value);
6059 return FALSE;
6060 }
f6f9408f 6061
8e45593f
NC
6062 elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK;
6063 elf_elfheader (obfd)->e_flags |=
f6f9408f 6064 sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
8e45593f
NC
6065
6066 if (fdpic_object_p (ibfd) != fdpic_object_p (obfd))
6067 {
871b3ab2 6068 _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"),
8e45593f
NC
6069 ibfd);
6070 bfd_set_error (bfd_error_bad_value);
6071 return FALSE;
6072 }
6073
f6f9408f 6074 return TRUE;
d4845d57 6075}
fbca6ad9 6076#endif /* not sh_elf_merge_private_data */
d4845d57 6077
3376eaf5
KK
6078/* Override the generic function because we need to store sh_elf_obj_tdata
6079 as the specific tdata. We set also the machine architecture from flags
6080 here. */
6081
b34976b6 6082static bfd_boolean
09fd220b 6083sh_elf_object_p (bfd *abfd)
3376eaf5 6084{
8e45593f
NC
6085 if (! sh_elf_set_mach_from_flags (abfd))
6086 return FALSE;
6087
6088 return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0)
6089 == fdpic_object_p (abfd));
3376eaf5
KK
6090}
6091
37c644f2
AO
6092/* Finish up dynamic symbol handling. We set the contents of various
6093 dynamic sections here. */
6094
b34976b6 6095static bfd_boolean
09fd220b
KK
6096sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
6097 struct elf_link_hash_entry *h,
6098 Elf_Internal_Sym *sym)
37c644f2 6099{
067653c5 6100 struct elf_sh_link_hash_table *htab;
37c644f2 6101
067653c5 6102 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
6103 if (htab == NULL)
6104 return FALSE;
37c644f2
AO
6105
6106 if (h->plt.offset != (bfd_vma) -1)
6107 {
6108 asection *splt;
8e45593f
NC
6109 asection *sgotplt;
6110 asection *srelplt;
37c644f2
AO
6111
6112 bfd_vma plt_index;
6113 bfd_vma got_offset;
6114 Elf_Internal_Rela rel;
947216bf 6115 bfd_byte *loc;
8e45593f 6116 const struct elf_sh_plt_info *plt_info;
37c644f2
AO
6117
6118 /* This symbol has an entry in the procedure linkage table. Set
6119 it up. */
6120
6121 BFD_ASSERT (h->dynindx != -1);
6122
ce558b89
AM
6123 splt = htab->root.splt;
6124 sgotplt = htab->root.sgotplt;
6125 srelplt = htab->root.srelplt;
8e45593f 6126 BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL);
37c644f2
AO
6127
6128 /* Get the index in the procedure linkage table which
6129 corresponds to this symbol. This is the index of this symbol
6130 in all the symbols for which we are making plt entries. The
6131 first entry in the procedure linkage table is reserved. */
55e6e397 6132 plt_index = get_plt_index (htab->plt_info, h->plt.offset);
37c644f2 6133
8e45593f
NC
6134 plt_info = htab->plt_info;
6135 if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT)
6136 plt_info = plt_info->short_plt;
6137
37c644f2 6138 /* Get the offset into the .got table of the entry that
8e45593f
NC
6139 corresponds to this function. */
6140 if (htab->fdpic_p)
6141 /* The offset must be relative to the GOT symbol, twelve bytes
6142 before the end of .got.plt. Each descriptor is eight
6143 bytes. */
6144 got_offset = plt_index * 8 + 12 - sgotplt->size;
6145 else
6146 /* Each .got entry is 4 bytes. The first three are
6147 reserved. */
6148 got_offset = (plt_index + 3) * 4;
37c644f2 6149
fbca6ad9 6150#ifdef GOT_BIAS
0e1862bb 6151 if (bfd_link_pic (info))
c8614e8e 6152 got_offset -= GOT_BIAS;
fbca6ad9
AO
6153#endif
6154
37c644f2 6155 /* Fill in the entry in the procedure linkage table. */
55e6e397 6156 memcpy (splt->contents + h->plt.offset,
8e45593f
NC
6157 plt_info->symbol_entry,
6158 plt_info->symbol_entry_size);
55e6e397 6159
0e1862bb 6160 if (bfd_link_pic (info) || htab->fdpic_p)
8e45593f
NC
6161 {
6162 if (plt_info->symbol_fields.got20)
6163 {
6164 bfd_reloc_status_type r;
6165 r = install_movi20_field (output_bfd, got_offset,
6166 splt->owner, splt, splt->contents,
6167 h->plt.offset
6168 + plt_info->symbol_fields.got_entry);
6169 BFD_ASSERT (r == bfd_reloc_ok);
6170 }
6171 else
6172 install_plt_field (output_bfd, FALSE, got_offset,
6173 (splt->contents
6174 + h->plt.offset
6175 + plt_info->symbol_fields.got_entry));
6176 }
55e6e397 6177 else
37c644f2 6178 {
8e45593f
NC
6179 BFD_ASSERT (!plt_info->symbol_fields.got20);
6180
55e6e397 6181 install_plt_field (output_bfd, FALSE,
8e45593f
NC
6182 (sgotplt->output_section->vma
6183 + sgotplt->output_offset
fbca6ad9 6184 + got_offset),
55e6e397
RS
6185 (splt->contents
6186 + h->plt.offset
8e45593f 6187 + plt_info->symbol_fields.got_entry));
55e6e397 6188 if (htab->vxworks_p)
37c644f2 6189 {
55e6e397
RS
6190 unsigned int reachable_plts, plts_per_4k;
6191 int distance;
6192
6193 /* Divide the PLT into groups. The first group contains
6194 REACHABLE_PLTS entries and the other groups contain
6195 PLTS_PER_4K entries. Entries in the first group can
6196 branch directly to .plt; those in later groups branch
6197 to the last element of the previous group. */
6198 /* ??? It would be better to create multiple copies of
6199 the common resolver stub. */
6200 reachable_plts = ((4096
8e45593f
NC
6201 - plt_info->plt0_entry_size
6202 - (plt_info->symbol_fields.plt + 4))
6203 / plt_info->symbol_entry_size) + 1;
6204 plts_per_4k = (4096 / plt_info->symbol_entry_size);
55e6e397
RS
6205 if (plt_index < reachable_plts)
6206 distance = -(h->plt.offset
8e45593f 6207 + plt_info->symbol_fields.plt);
55e6e397
RS
6208 else
6209 distance = -(((plt_index - reachable_plts) % plts_per_4k + 1)
8e45593f 6210 * plt_info->symbol_entry_size);
55e6e397
RS
6211
6212 /* Install the 'bra' with this offset. */
6213 bfd_put_16 (output_bfd,
6214 0xa000 | (0x0fff & ((distance - 4) / 2)),
6215 (splt->contents
6216 + h->plt.offset
8e45593f 6217 + plt_info->symbol_fields.plt));
37c644f2 6218 }
55e6e397
RS
6219 else
6220 install_plt_field (output_bfd, TRUE,
6221 splt->output_section->vma + splt->output_offset,
6222 (splt->contents
6223 + h->plt.offset
8e45593f 6224 + plt_info->symbol_fields.plt));
37c644f2
AO
6225 }
6226
8e45593f 6227 /* Make got_offset relative to the start of .got.plt. */
fbca6ad9 6228#ifdef GOT_BIAS
0e1862bb 6229 if (bfd_link_pic (info))
c8614e8e 6230 got_offset += GOT_BIAS;
fbca6ad9 6231#endif
8e45593f
NC
6232 if (htab->fdpic_p)
6233 got_offset = plt_index * 8;
fbca6ad9 6234
8e45593f
NC
6235 if (plt_info->symbol_fields.reloc_offset != MINUS_ONE)
6236 install_plt_field (output_bfd, FALSE,
6237 plt_index * sizeof (Elf32_External_Rela),
6238 (splt->contents
6239 + h->plt.offset
6240 + plt_info->symbol_fields.reloc_offset));
37c644f2
AO
6241
6242 /* Fill in the entry in the global offset table. */
6243 bfd_put_32 (output_bfd,
6244 (splt->output_section->vma
6245 + splt->output_offset
6246 + h->plt.offset
8e45593f
NC
6247 + plt_info->symbol_resolve_offset),
6248 sgotplt->contents + got_offset);
6249 if (htab->fdpic_p)
6250 bfd_put_32 (output_bfd,
ce558b89 6251 sh_elf_osec_to_segment (output_bfd, splt->output_section),
8e45593f 6252 sgotplt->contents + got_offset + 4);
37c644f2
AO
6253
6254 /* Fill in the entry in the .rela.plt section. */
8e45593f
NC
6255 rel.r_offset = (sgotplt->output_section->vma
6256 + sgotplt->output_offset
37c644f2 6257 + got_offset);
8e45593f
NC
6258 if (htab->fdpic_p)
6259 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE);
6260 else
6261 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
37c644f2 6262 rel.r_addend = 0;
fbca6ad9
AO
6263#ifdef GOT_BIAS
6264 rel.r_addend = GOT_BIAS;
6265#endif
8e45593f 6266 loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
947216bf 6267 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2 6268
0e1862bb 6269 if (htab->vxworks_p && !bfd_link_pic (info))
55e6e397
RS
6270 {
6271 /* Create the .rela.plt.unloaded relocations for this PLT entry.
6272 Begin by pointing LOC to the first such relocation. */
6273 loc = (htab->srelplt2->contents
6274 + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela));
6275
6276 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
6277 for the PLT entry's pointer to the .got.plt entry. */
ce558b89
AM
6278 rel.r_offset = (splt->output_section->vma
6279 + splt->output_offset
55e6e397 6280 + h->plt.offset
8e45593f 6281 + plt_info->symbol_fields.got_entry);
55e6e397
RS
6282 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6283 rel.r_addend = got_offset;
6284 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6285 loc += sizeof (Elf32_External_Rela);
6286
6287 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
6288 the .got.plt entry, which initially points to .plt. */
8e45593f
NC
6289 rel.r_offset = (sgotplt->output_section->vma
6290 + sgotplt->output_offset
55e6e397
RS
6291 + got_offset);
6292 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32);
6293 rel.r_addend = 0;
6294 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6295 }
6296
f5385ebf 6297 if (!h->def_regular)
37c644f2
AO
6298 {
6299 /* Mark the symbol as undefined, rather than as defined in
6300 the .plt section. Leave the value alone. */
6301 sym->st_shndx = SHN_UNDEF;
6302 }
6303 }
6304
3376eaf5 6305 if (h->got.offset != (bfd_vma) -1
8e45593f
NC
6306 && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD
6307 && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE
6308 && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC)
37c644f2
AO
6309 {
6310 asection *sgot;
8e45593f 6311 asection *srelgot;
37c644f2 6312 Elf_Internal_Rela rel;
947216bf 6313 bfd_byte *loc;
37c644f2
AO
6314
6315 /* This symbol has an entry in the global offset table. Set it
6316 up. */
6317
ce558b89
AM
6318 sgot = htab->root.sgot;
6319 srelgot = htab->root.srelgot;
8e45593f 6320 BFD_ASSERT (sgot != NULL && srelgot != NULL);
37c644f2
AO
6321
6322 rel.r_offset = (sgot->output_section->vma
6323 + sgot->output_offset
dc810e39 6324 + (h->got.offset &~ (bfd_vma) 1));
37c644f2 6325
067653c5
AM
6326 /* If this is a static link, or it is a -Bsymbolic link and the
6327 symbol is defined locally or was forced to be local because
6328 of a version file, we just want to emit a RELATIVE reloc.
37c644f2
AO
6329 The entry in the global offset table will already have been
6330 initialized in the relocate_section function. */
0e1862bb 6331 if (bfd_link_pic (info)
3d85aebe 6332 && SYMBOL_REFERENCES_LOCAL (info, h))
37c644f2 6333 {
8e45593f
NC
6334 if (htab->fdpic_p)
6335 {
6336 asection *sec = h->root.u.def.section;
6337 int dynindx
6338 = elf_section_data (sec->output_section)->dynindx;
6339
6340 rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
6341 rel.r_addend = (h->root.u.def.value
6342 + h->root.u.def.section->output_offset);
6343 }
6344 else
6345 {
6346 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
6347 rel.r_addend = (h->root.u.def.value
6348 + h->root.u.def.section->output_section->vma
6349 + h->root.u.def.section->output_offset);
6350 }
37c644f2
AO
6351 }
6352 else
6353 {
6354 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
6355 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
6356 rel.r_addend = 0;
6357 }
6358
8e45593f
NC
6359 loc = srelgot->contents;
6360 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
947216bf 6361 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2
AO
6362 }
6363
f5385ebf 6364 if (h->needs_copy)
37c644f2
AO
6365 {
6366 asection *s;
6367 Elf_Internal_Rela rel;
947216bf 6368 bfd_byte *loc;
37c644f2
AO
6369
6370 /* This symbol needs a copy reloc. Set it up. */
6371
6372 BFD_ASSERT (h->dynindx != -1
6373 && (h->root.type == bfd_link_hash_defined
6374 || h->root.type == bfd_link_hash_defweak));
6375
3d4d4302 6376 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
37c644f2
AO
6377 BFD_ASSERT (s != NULL);
6378
6379 rel.r_offset = (h->root.u.def.value
6380 + h->root.u.def.section->output_section->vma
6381 + h->root.u.def.section->output_offset);
6382 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
6383 rel.r_addend = 0;
947216bf
AM
6384 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
6385 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2
AO
6386 }
6387
55e6e397
RS
6388 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
6389 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
6390 ".got" section. */
9637f6ef 6391 if (h == htab->root.hdynamic
55e6e397 6392 || (!htab->vxworks_p && h == htab->root.hgot))
37c644f2
AO
6393 sym->st_shndx = SHN_ABS;
6394
b34976b6 6395 return TRUE;
37c644f2
AO
6396}
6397
6398/* Finish up the dynamic sections. */
6399
b34976b6 6400static bfd_boolean
09fd220b 6401sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
37c644f2 6402{
067653c5 6403 struct elf_sh_link_hash_table *htab;
8e45593f 6404 asection *sgotplt;
37c644f2
AO
6405 asection *sdyn;
6406
067653c5 6407 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
6408 if (htab == NULL)
6409 return FALSE;
6410
ce558b89 6411 sgotplt = htab->root.sgotplt;
3d4d4302 6412 sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic");
37c644f2 6413
067653c5 6414 if (htab->root.dynamic_sections_created)
37c644f2
AO
6415 {
6416 asection *splt;
6417 Elf32_External_Dyn *dyncon, *dynconend;
6418
8e45593f 6419 BFD_ASSERT (sgotplt != NULL && sdyn != NULL);
37c644f2
AO
6420
6421 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 6422 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
37c644f2
AO
6423 for (; dyncon < dynconend; dyncon++)
6424 {
6425 Elf_Internal_Dyn dyn;
37c644f2
AO
6426 asection *s;
6427
2293c499 6428 bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
37c644f2
AO
6429
6430 switch (dyn.d_tag)
6431 {
6432 default:
7a2b07ff
NS
6433 if (htab->vxworks_p
6434 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
6435 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
37c644f2
AO
6436 break;
6437
6438 case DT_PLTGOT:
8e45593f
NC
6439 BFD_ASSERT (htab->root.hgot != NULL);
6440 s = htab->root.hgot->root.u.def.section;
6441 dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value
6442 + s->output_section->vma + s->output_offset;
6443 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6444 break;
37c644f2
AO
6445
6446 case DT_JMPREL:
ce558b89 6447 s = htab->root.srelplt->output_section;
37c644f2
AO
6448 BFD_ASSERT (s != NULL);
6449 dyn.d_un.d_ptr = s->vma;
6450 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6451 break;
6452
6453 case DT_PLTRELSZ:
ce558b89 6454 s = htab->root.srelplt->output_section;
37c644f2 6455 BFD_ASSERT (s != NULL);
eea6121a 6456 dyn.d_un.d_val = s->size;
37c644f2
AO
6457 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6458 break;
37c644f2
AO
6459 }
6460 }
6461
6462 /* Fill in the first entry in the procedure linkage table. */
ce558b89 6463 splt = htab->root.splt;
55e6e397 6464 if (splt && splt->size > 0 && htab->plt_info->plt0_entry)
37c644f2 6465 {
55e6e397
RS
6466 unsigned int i;
6467
6468 memcpy (splt->contents,
6469 htab->plt_info->plt0_entry,
6470 htab->plt_info->plt0_entry_size);
6471 for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++)
6472 if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE)
6473 install_plt_field (output_bfd, FALSE,
8e45593f
NC
6474 (sgotplt->output_section->vma
6475 + sgotplt->output_offset
55e6e397
RS
6476 + (i * 4)),
6477 (splt->contents
6478 + htab->plt_info->plt0_got_fields[i]));
6479
6480 if (htab->vxworks_p)
37c644f2 6481 {
55e6e397
RS
6482 /* Finalize the .rela.plt.unloaded contents. */
6483 Elf_Internal_Rela rel;
6484 bfd_byte *loc;
6485
6486 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
6487 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
6488 loc = htab->srelplt2->contents;
6489 rel.r_offset = (splt->output_section->vma
6490 + splt->output_offset
6491 + htab->plt_info->plt0_got_fields[2]);
6492 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6493 rel.r_addend = 8;
6494 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6495 loc += sizeof (Elf32_External_Rela);
6496
6497 /* Fix up the remaining .rela.plt.unloaded relocations.
6498 They may have the wrong symbol index for _G_O_T_ or
6499 _P_L_T_ depending on the order in which symbols were
6500 output. */
6501 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
37c644f2 6502 {
55e6e397
RS
6503 /* The PLT entry's pointer to the .got.plt slot. */
6504 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6505 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx,
6506 R_SH_DIR32);
6507 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6508 loc += sizeof (Elf32_External_Rela);
6509
6510 /* The .got.plt slot's pointer to .plt. */
6511 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6512 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx,
6513 R_SH_DIR32);
6514 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6515 loc += sizeof (Elf32_External_Rela);
37c644f2 6516 }
37c644f2
AO
6517 }
6518
6519 /* UnixWare sets the entsize of .plt to 4, although that doesn't
6520 really seem like the right value. */
6521 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
6522 }
6523 }
6524
6525 /* Fill in the first three entries in the global offset table. */
8e45593f 6526 if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p)
37c644f2
AO
6527 {
6528 if (sdyn == NULL)
8e45593f 6529 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents);
37c644f2
AO
6530 else
6531 bfd_put_32 (output_bfd,
6532 sdyn->output_section->vma + sdyn->output_offset,
8e45593f
NC
6533 sgotplt->contents);
6534 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4);
6535 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8);
6536 }
37c644f2 6537
8e45593f
NC
6538 if (sgotplt && sgotplt->size > 0)
6539 elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4;
68ffbac6 6540
8e45593f
NC
6541 /* At the very end of the .rofixup section is a pointer to the GOT. */
6542 if (htab->fdpic_p && htab->srofixup != NULL)
6543 {
6544 struct elf_link_hash_entry *hgot = htab->root.hgot;
6545 bfd_vma got_value = hgot->root.u.def.value
6546 + hgot->root.u.def.section->output_section->vma
6547 + hgot->root.u.def.section->output_offset;
6548
6549 sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value);
6550
6551 /* Make sure we allocated and generated the same number of fixups. */
6552 BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size);
067653c5 6553 }
37c644f2 6554
8e45593f
NC
6555 if (htab->srelfuncdesc)
6556 BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela)
6557 == htab->srelfuncdesc->size);
6558
ce558b89
AM
6559 if (htab->root.srelgot)
6560 BFD_ASSERT (htab->root.srelgot->reloc_count * sizeof (Elf32_External_Rela)
6561 == htab->root.srelgot->size);
8e45593f 6562
b34976b6 6563 return TRUE;
37c644f2
AO
6564}
6565
99e4ae17 6566static enum elf_reloc_type_class
7e612e98
AM
6567sh_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
6568 const asection *rel_sec ATTRIBUTE_UNUSED,
6569 const Elf_Internal_Rela *rela)
99e4ae17 6570{
f51e552e 6571 switch ((int) ELF32_R_TYPE (rela->r_info))
99e4ae17
AJ
6572 {
6573 case R_SH_RELATIVE:
6574 return reloc_class_relative;
6575 case R_SH_JMP_SLOT:
6576 return reloc_class_plt;
6577 case R_SH_COPY:
6578 return reloc_class_copy;
6579 default:
6580 return reloc_class_normal;
6581 }
6582}
6583
85fbca6a 6584#if !defined SH_TARGET_ALREADY_DEFINED
571fe01f 6585/* Support for Linux core dump NOTE sections. */
85fbca6a 6586
b34976b6 6587static bfd_boolean
09fd220b 6588elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2bc3c89a
AM
6589{
6590 int offset;
eea6121a 6591 unsigned int size;
2bc3c89a
AM
6592
6593 switch (note->descsz)
6594 {
6595 default:
b34976b6 6596 return FALSE;
2bc3c89a
AM
6597
6598 case 168: /* Linux/SH */
6599 /* pr_cursig */
228e534f 6600 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2bc3c89a
AM
6601
6602 /* pr_pid */
228e534f 6603 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2bc3c89a
AM
6604
6605 /* pr_reg */
6606 offset = 72;
eea6121a 6607 size = 92;
2bc3c89a
AM
6608
6609 break;
6610 }
6611
6612 /* Make a ".reg/999" section. */
6613 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 6614 size, note->descpos + offset);
2bc3c89a
AM
6615}
6616
b34976b6 6617static bfd_boolean
09fd220b 6618elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2bc3c89a
AM
6619{
6620 switch (note->descsz)
6621 {
6622 default:
b34976b6 6623 return FALSE;
2bc3c89a
AM
6624
6625 case 124: /* Linux/SH elf_prpsinfo */
228e534f 6626 elf_tdata (abfd)->core->program
2bc3c89a 6627 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 6628 elf_tdata (abfd)->core->command
2bc3c89a
AM
6629 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6630 }
6631
6632 /* Note that for some reason, a spurious space is tacked
6633 onto the end of the args in some (at least one anyway)
6634 implementations, so strip it off if it exists. */
6635
6636 {
228e534f 6637 char *command = elf_tdata (abfd)->core->command;
2bc3c89a
AM
6638 int n = strlen (command);
6639
6640 if (0 < n && command[n - 1] == ' ')
6641 command[n - 1] = '\0';
6642 }
6643
b34976b6 6644 return TRUE;
2bc3c89a 6645}
85fbca6a 6646#endif /* not SH_TARGET_ALREADY_DEFINED */
2bc3c89a 6647
68ffbac6 6648
1f1799d5
KK
6649/* Return address for Ith PLT stub in section PLT, for relocation REL
6650 or (bfd_vma) -1 if it should not be included. */
6651
6652static bfd_vma
6653sh_elf_plt_sym_val (bfd_vma i, const asection *plt,
6654 const arelent *rel ATTRIBUTE_UNUSED)
6655{
55e6e397
RS
6656 const struct elf_sh_plt_info *plt_info;
6657
6658 plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0);
6659 return plt->vma + get_plt_offset (plt_info, i);
1f1799d5
KK
6660}
6661
8e45593f
NC
6662/* Decide whether to attempt to turn absptr or lsda encodings in
6663 shared libraries into pcrel within the given input section. */
6664
6665static bfd_boolean
6666sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED,
6667 struct bfd_link_info *info,
6668 asection *eh_frame_section ATTRIBUTE_UNUSED)
6669{
6670 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6671
6672 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
6673 if (htab->fdpic_p)
6674 return FALSE;
6675
6676 return TRUE;
6677}
6678
6679/* Adjust the contents of an eh_frame_hdr section before they're output. */
6680
6681static bfd_byte
6682sh_elf_encode_eh_address (bfd *abfd,
6683 struct bfd_link_info *info,
6684 asection *osec, bfd_vma offset,
6685 asection *loc_sec, bfd_vma loc_offset,
6686 bfd_vma *encoded)
6687{
6688 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6689 struct elf_link_hash_entry *h;
6690
6691 if (!htab->fdpic_p)
6692 return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec,
6693 loc_offset, encoded);
6694
6695 h = htab->root.hgot;
6696 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6697
6698 if (! h || (sh_elf_osec_to_segment (abfd, osec)
6699 == sh_elf_osec_to_segment (abfd, loc_sec->output_section)))
6700 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6701 loc_sec, loc_offset, encoded);
6702
6703 BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec)
6704 == (sh_elf_osec_to_segment
6705 (abfd, h->root.u.def.section->output_section)));
6706
6707 *encoded = osec->vma + offset
6708 - (h->root.u.def.value
6709 + h->root.u.def.section->output_section->vma
6710 + h->root.u.def.section->output_offset);
6711
6712 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6713}
6714
85fbca6a 6715#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590 6716#define TARGET_BIG_SYM sh_elf32_vec
252b5132 6717#define TARGET_BIG_NAME "elf32-sh"
6d00b590 6718#define TARGET_LITTLE_SYM sh_elf32_le_vec
252b5132 6719#define TARGET_LITTLE_NAME "elf32-shl"
85fbca6a
NC
6720#endif
6721
252b5132 6722#define ELF_ARCH bfd_arch_sh
ae95ffa6 6723#define ELF_TARGET_ID SH_ELF_DATA
252b5132 6724#define ELF_MACHINE_CODE EM_SH
d0facd1b
NC
6725#ifdef __QNXTARGET__
6726#define ELF_MAXPAGESIZE 0x1000
6727#else
6728#define ELF_MAXPAGESIZE 0x80
6729#endif
252b5132
RH
6730
6731#define elf_symbol_leading_char '_'
6732
6733#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
157090f7
AM
6734#define bfd_elf32_bfd_reloc_name_lookup \
6735 sh_elf_reloc_name_lookup
252b5132
RH
6736#define elf_info_to_howto sh_elf_info_to_howto
6737#define bfd_elf32_bfd_relax_section sh_elf_relax_section
6738#define elf_backend_relocate_section sh_elf_relocate_section
6739#define bfd_elf32_bfd_get_relocated_section_contents \
6740 sh_elf_get_relocated_section_contents
3376eaf5
KK
6741#define bfd_elf32_mkobject sh_elf_mkobject
6742#define elf_backend_object_p sh_elf_object_p
d4845d57
JR
6743#define bfd_elf32_bfd_copy_private_bfd_data \
6744 sh_elf_copy_private_data
875f7f69 6745#define bfd_elf32_bfd_merge_private_bfd_data \
d4845d57 6746 sh_elf_merge_private_data
252b5132 6747
067653c5 6748#define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
067653c5
AM
6749#define elf_backend_check_relocs sh_elf_check_relocs
6750#define elf_backend_copy_indirect_symbol \
6751 sh_elf_copy_indirect_symbol
37c644f2
AO
6752#define elf_backend_create_dynamic_sections \
6753 sh_elf_create_dynamic_sections
6754#define bfd_elf32_bfd_link_hash_table_create \
6755 sh_elf_link_hash_table_create
6756#define elf_backend_adjust_dynamic_symbol \
6757 sh_elf_adjust_dynamic_symbol
55e6e397
RS
6758#define elf_backend_always_size_sections \
6759 sh_elf_always_size_sections
37c644f2
AO
6760#define elf_backend_size_dynamic_sections \
6761 sh_elf_size_dynamic_sections
8e45593f 6762#define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
37c644f2
AO
6763#define elf_backend_finish_dynamic_symbol \
6764 sh_elf_finish_dynamic_symbol
6765#define elf_backend_finish_dynamic_sections \
6766 sh_elf_finish_dynamic_sections
99e4ae17 6767#define elf_backend_reloc_type_class sh_elf_reloc_type_class
1f1799d5 6768#define elf_backend_plt_sym_val sh_elf_plt_sym_val
8e45593f
NC
6769#define elf_backend_can_make_relative_eh_frame \
6770 sh_elf_use_relative_eh_frame
6771#define elf_backend_can_make_lsda_relative_eh_frame \
6772 sh_elf_use_relative_eh_frame
6773#define elf_backend_encode_eh_address \
6774 sh_elf_encode_eh_address
37c644f2 6775
04c3a755 6776#define elf_backend_stack_align 8
067653c5
AM
6777#define elf_backend_can_gc_sections 1
6778#define elf_backend_can_refcount 1
37c644f2
AO
6779#define elf_backend_want_got_plt 1
6780#define elf_backend_plt_readonly 1
6781#define elf_backend_want_plt_sym 0
6782#define elf_backend_got_header_size 12
64f52338 6783#define elf_backend_dtrel_excludes_plt 1
ed71e111 6784
a2f63b2e
MR
6785#define elf_backend_linux_prpsinfo32_ugid16 TRUE
6786
211dc24b 6787#if !defined SH_TARGET_ALREADY_DEFINED
2bc3c89a 6788
252b5132 6789#include "elf32-target.h"
ed71e111 6790
2bc3c89a
AM
6791/* NetBSD support. */
6792#undef TARGET_BIG_SYM
6d00b590 6793#define TARGET_BIG_SYM sh_elf32_nbsd_vec
2bc3c89a
AM
6794#undef TARGET_BIG_NAME
6795#define TARGET_BIG_NAME "elf32-sh-nbsd"
6796#undef TARGET_LITTLE_SYM
6d00b590 6797#define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec
2bc3c89a
AM
6798#undef TARGET_LITTLE_NAME
6799#define TARGET_LITTLE_NAME "elf32-shl-nbsd"
6800#undef ELF_MAXPAGESIZE
6801#define ELF_MAXPAGESIZE 0x10000
24718e3b 6802#undef ELF_COMMONPAGESIZE
2bc3c89a
AM
6803#undef elf_symbol_leading_char
6804#define elf_symbol_leading_char 0
571fe01f 6805#undef elf32_bed
2bc3c89a
AM
6806#define elf32_bed elf32_sh_nbsd_bed
6807
6808#include "elf32-target.h"
6809
2bc3c89a
AM
6810
6811/* Linux support. */
6812#undef TARGET_BIG_SYM
6d00b590 6813#define TARGET_BIG_SYM sh_elf32_linux_be_vec
2bc3c89a
AM
6814#undef TARGET_BIG_NAME
6815#define TARGET_BIG_NAME "elf32-shbig-linux"
6816#undef TARGET_LITTLE_SYM
6d00b590 6817#define TARGET_LITTLE_SYM sh_elf32_linux_vec
2bc3c89a
AM
6818#undef TARGET_LITTLE_NAME
6819#define TARGET_LITTLE_NAME "elf32-sh-linux"
24718e3b
L
6820#undef ELF_COMMONPAGESIZE
6821#define ELF_COMMONPAGESIZE 0x1000
2bc3c89a
AM
6822
6823#undef elf_backend_grok_prstatus
6824#define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
6825#undef elf_backend_grok_psinfo
6826#define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
571fe01f 6827#undef elf32_bed
2bc3c89a
AM
6828#define elf32_bed elf32_sh_lin_bed
6829
6830#include "elf32-target.h"
6831
8e45593f
NC
6832
6833/* FDPIC support. */
6834#undef TARGET_BIG_SYM
6d00b590 6835#define TARGET_BIG_SYM sh_elf32_fdpic_be_vec
8e45593f
NC
6836#undef TARGET_BIG_NAME
6837#define TARGET_BIG_NAME "elf32-shbig-fdpic"
6838#undef TARGET_LITTLE_SYM
6d00b590 6839#define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec
8e45593f
NC
6840#undef TARGET_LITTLE_NAME
6841#define TARGET_LITTLE_NAME "elf32-sh-fdpic"
8e45593f
NC
6842
6843#undef elf32_bed
6844#define elf32_bed elf32_sh_fd_bed
6845
6846#include "elf32-target.h"
6847
6848#undef elf_backend_modify_program_headers
6849
6850/* VxWorks support. */
55e6e397 6851#undef TARGET_BIG_SYM
6d00b590 6852#define TARGET_BIG_SYM sh_elf32_vxworks_vec
55e6e397
RS
6853#undef TARGET_BIG_NAME
6854#define TARGET_BIG_NAME "elf32-sh-vxworks"
6855#undef TARGET_LITTLE_SYM
6d00b590 6856#define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec
55e6e397
RS
6857#undef TARGET_LITTLE_NAME
6858#define TARGET_LITTLE_NAME "elf32-shl-vxworks"
6859#undef elf32_bed
6860#define elf32_bed elf32_sh_vxworks_bed
6861
6862#undef elf_backend_want_plt_sym
6863#define elf_backend_want_plt_sym 1
6864#undef elf_symbol_leading_char
6865#define elf_symbol_leading_char '_'
6866#define elf_backend_want_got_underscore 1
6867#undef elf_backend_grok_prstatus
6868#undef elf_backend_grok_psinfo
6869#undef elf_backend_add_symbol_hook
6870#define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
6871#undef elf_backend_link_output_symbol_hook
6872#define elf_backend_link_output_symbol_hook \
6873 elf_vxworks_link_output_symbol_hook
6874#undef elf_backend_emit_relocs
6875#define elf_backend_emit_relocs elf_vxworks_emit_relocs
6876#undef elf_backend_final_write_processing
6877#define elf_backend_final_write_processing \
6878 elf_vxworks_final_write_processing
6879#undef ELF_MAXPAGESIZE
6880#define ELF_MAXPAGESIZE 0x1000
6881#undef ELF_COMMONPAGESIZE
6882
6883#include "elf32-target.h"
6884
211dc24b 6885#endif /* not SH_TARGET_ALREADY_DEFINED */
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