PR26069, strip/objcopy memory leaks
[deliverable/binutils-gdb.git] / bfd / elf32-sh.c
CommitLineData
ef230218 1/* Renesas / SuperH SH specific support for 32-bit ELF
b3adc24a 2 Copyright (C) 1996-2020 Free Software Foundation, Inc.
252b5132
RH
3 Contributed by Ian Lance Taylor, Cygnus Support.
4
571fe01f 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
571fe01f
NC
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
571fe01f 10 (at your option) any later version.
252b5132 11
571fe01f
NC
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
571fe01f
NC
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
cd123cb7
NC
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
252b5132 21
252b5132 22#include "sysdep.h"
3db64b00 23#include "bfd.h"
252b5132
RH
24#include "bfdlink.h"
25#include "libbfd.h"
26#include "elf-bfd.h"
55e6e397 27#include "elf-vxworks.h"
252b5132 28#include "elf/sh.h"
8e45593f 29#include "dwarf2.h"
f6f9408f 30#include "libiberty.h"
871ec896 31#include "../opcodes/sh-opc.h"
252b5132 32
bb294208
AM
33/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
34#define OCTETS_PER_BYTE(ABFD, SEC) 1
35
252b5132 36static bfd_reloc_status_type sh_elf_reloc
09fd220b 37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 38static bfd_reloc_status_type sh_elf_ignore_reloc
09fd220b 39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
b34976b6 40static bfd_boolean sh_elf_relax_delete_bytes
09fd220b 41 (bfd *, asection *, bfd_vma, int);
b34976b6 42static bfd_boolean sh_elf_align_loads
09fd220b 43 (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *);
b34976b6 44static bfd_boolean sh_elf_swap_insns
09fd220b 45 (bfd *, asection *, void *, bfd_byte *, bfd_vma);
3376eaf5 46static int sh_elf_optimized_tls_reloc
09fd220b 47 (struct bfd_link_info *, int, int);
3376eaf5 48static bfd_vma dtpoff_base
09fd220b 49 (struct bfd_link_info *);
267fb3c1 50static bfd_vma tpoff
09fd220b 51 (struct bfd_link_info *, bfd_vma);
37c644f2
AO
52
53/* The name of the dynamic interpreter. This is put in the .interp
54 section. */
55
56#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
252b5132 57
8e45593f
NC
58/* FDPIC binaries have a default 128K stack. */
59#define DEFAULT_STACK_SIZE 0x20000
60
55e6e397 61#define MINUS_ONE ((bfd_vma) 0 - 1)
8e45593f
NC
62
63/* Decide whether a reference to a symbol can be resolved locally or
64 not. If the symbol is protected, we want the local address, but
65 its function descriptor must be assigned by the dynamic linker. */
66#define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
67 (SYMBOL_REFERENCES_LOCAL (INFO, H) \
68 || ! elf_hash_table (INFO)->dynamic_sections_created)
55e6e397
RS
69\f
70#define SH_PARTIAL32 TRUE
71#define SH_SRC_MASK32 0xffffffff
72#define SH_ELF_RELOC sh_elf_reloc
38b1a46c
NC
73static reloc_howto_type sh_elf_howto_table[] =
74{
55e6e397
RS
75#include "elf32-sh-relocs.h"
76};
fbca6ad9 77
55e6e397
RS
78#define SH_PARTIAL32 FALSE
79#define SH_SRC_MASK32 0
80#define SH_ELF_RELOC bfd_elf_generic_reloc
81static reloc_howto_type sh_vxworks_howto_table[] =
82{
83#include "elf32-sh-relocs.h"
84};
85\f
86/* Return true if OUTPUT_BFD is a VxWorks object. */
fbca6ad9 87
55e6e397 88static bfd_boolean
527a23b8 89vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED)
55e6e397 90{
211dc24b 91#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590
AM
92 extern const bfd_target sh_elf32_vxworks_le_vec;
93 extern const bfd_target sh_elf32_vxworks_vec;
fbca6ad9 94
6d00b590
AM
95 return (abfd->xvec == &sh_elf32_vxworks_le_vec
96 || abfd->xvec == &sh_elf32_vxworks_vec);
527a23b8
NC
97#else
98 return FALSE;
99#endif
55e6e397 100}
fbca6ad9 101
8e45593f
NC
102/* Return true if OUTPUT_BFD is an FDPIC object. */
103
104static bfd_boolean
105fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED)
106{
211dc24b 107#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590
AM
108 extern const bfd_target sh_elf32_fdpic_le_vec;
109 extern const bfd_target sh_elf32_fdpic_be_vec;
8e45593f 110
6d00b590
AM
111 return (abfd->xvec == &sh_elf32_fdpic_le_vec
112 || abfd->xvec == &sh_elf32_fdpic_be_vec);
8e45593f
NC
113#else
114 return FALSE;
115#endif
116}
117
55e6e397 118/* Return the howto table for ABFD. */
fbca6ad9 119
55e6e397
RS
120static reloc_howto_type *
121get_howto_table (bfd *abfd)
122{
123 if (vxworks_object_p (abfd))
124 return sh_vxworks_howto_table;
125 return sh_elf_howto_table;
126}
252b5132 127
015551fc 128static bfd_reloc_status_type
09fd220b
KK
129sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd,
130 asection *input_section, bfd_byte *contents,
131 bfd_vma addr, asection *symbol_section,
132 bfd_vma start, bfd_vma end)
015551fc
JR
133{
134 static bfd_vma last_addr;
00fdaf47 135 static asection *last_symbol_section;
015551fc
JR
136 bfd_byte *start_ptr, *ptr, *last_ptr;
137 int diff, cum_diff;
138 bfd_signed_vma x;
139 int insn;
140
141 /* Sanity check the address. */
07515404 142 if (addr > bfd_get_section_limit (input_bfd, input_section))
015551fc
JR
143 return bfd_reloc_outofrange;
144
145 /* We require the start and end relocations to be processed consecutively -
146 although we allow then to be processed forwards or backwards. */
147 if (! last_addr)
148 {
149 last_addr = addr;
150 last_symbol_section = symbol_section;
151 return bfd_reloc_ok;
152 }
153 if (last_addr != addr)
154 abort ();
155 last_addr = 0;
156
157 if (! symbol_section || last_symbol_section != symbol_section || end < start)
158 return bfd_reloc_outofrange;
159
160 /* Get the symbol_section contents. */
161 if (symbol_section != input_section)
162 {
163 if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
164 contents = elf_section_data (symbol_section)->this_hdr.contents;
165 else
166 {
eea6121a
AM
167 if (!bfd_malloc_and_get_section (input_bfd, symbol_section,
168 &contents))
015551fc 169 {
c9594989 170 free (contents);
015551fc
JR
171 return bfd_reloc_outofrange;
172 }
173 }
174 }
175#define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
176 start_ptr = contents + start;
177 for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
178 {
179 for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
180 ptr -= 2;
181 ptr += 2;
61ff1804 182 diff = (last_ptr - ptr) >> 1;
015551fc
JR
183 cum_diff += diff & 1;
184 cum_diff += diff;
185 }
186 /* Calculate the start / end values to load into rs / re minus four -
187 so that will cancel out the four we would otherwise have to add to
188 addr to get the value to subtract in order to get relative addressing. */
189 if (cum_diff >= 0)
190 {
191 start -= 4;
192 end = (ptr + cum_diff * 2) - contents;
193 }
194 else
195 {
196 bfd_vma start0 = start - 4;
197
a0fc8ba1 198 while (start0 && IS_PPI (contents + start0))
015551fc
JR
199 start0 -= 2;
200 start0 = start - 2 - ((start - start0) & 2);
201 start = start0 - cum_diff - 2;
202 end = start0;
203 }
204
c9594989 205 if (elf_section_data (symbol_section)->this_hdr.contents != contents)
6cdc0ccc 206 free (contents);
015551fc
JR
207
208 insn = bfd_get_16 (input_bfd, contents + addr);
209
210 x = (insn & 0x200 ? end : start) - addr;
211 if (input_section != symbol_section)
212 x += ((symbol_section->output_section->vma + symbol_section->output_offset)
213 - (input_section->output_section->vma
214 + input_section->output_offset));
215 x >>= 1;
216 if (x < -128 || x > 127)
217 return bfd_reloc_overflow;
218
61ff1804 219 x = (insn & ~0xff) | (x & 0xff);
dc810e39 220 bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
015551fc
JR
221
222 return bfd_reloc_ok;
223}
224
225/* This function is used for normal relocs. This used to be like the COFF
252b5132
RH
226 function, and is almost certainly incorrect for other ELF targets. */
227
228static bfd_reloc_status_type
09fd220b
KK
229sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
230 void *data, asection *input_section, bfd *output_bfd,
231 char **error_message ATTRIBUTE_UNUSED)
252b5132 232{
96e2dbda 233 bfd_vma insn;
252b5132
RH
234 bfd_vma sym_value;
235 enum elf_sh_reloc_type r_type;
236 bfd_vma addr = reloc_entry->address;
bb294208
AM
237 bfd_size_type octets = addr * OCTETS_PER_BYTE (abfd, input_section);
238 bfd_byte *hit_data = (bfd_byte *) data + octets;
252b5132
RH
239
240 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
241
242 if (output_bfd != NULL)
243 {
244 /* Partial linking--do nothing. */
245 reloc_entry->address += input_section->output_offset;
246 return bfd_reloc_ok;
247 }
248
249 /* Almost all relocs have to do with relaxing. If any work must be
250 done for them, it has been done in sh_relax_section. */
015551fc 251 if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
252b5132
RH
252 return bfd_reloc_ok;
253
254 if (symbol_in != NULL
255 && bfd_is_und_section (symbol_in->section))
256 return bfd_reloc_undefined;
257
cd21f5da 258 /* PR 17512: file: 9891ca98. */
bb294208 259 if (octets + bfd_get_reloc_size (reloc_entry->howto)
6346d5ca 260 > bfd_get_section_limit_octets (abfd, input_section))
cd21f5da
NC
261 return bfd_reloc_outofrange;
262
252b5132 263 if (bfd_is_com_section (symbol_in->section))
435b1e90
KH
264 sym_value = 0;
265 else
252b5132
RH
266 sym_value = (symbol_in->value +
267 symbol_in->section->output_section->vma +
268 symbol_in->section->output_offset);
269
270 switch (r_type)
271 {
272 case R_SH_DIR32:
273 insn = bfd_get_32 (abfd, hit_data);
274 insn += sym_value + reloc_entry->addend;
96e2dbda 275 bfd_put_32 (abfd, insn, hit_data);
252b5132
RH
276 break;
277 case R_SH_IND12W:
278 insn = bfd_get_16 (abfd, hit_data);
279 sym_value += reloc_entry->addend;
280 sym_value -= (input_section->output_section->vma
281 + input_section->output_offset
282 + addr
283 + 4);
96e2dbda
AM
284 sym_value += (((insn & 0xfff) ^ 0x800) - 0x800) << 1;
285 insn = (insn & 0xf000) | ((sym_value >> 1) & 0xfff);
286 bfd_put_16 (abfd, insn, hit_data);
287 if (sym_value + 0x1000 >= 0x2000 || (sym_value & 1) != 0)
252b5132
RH
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
c9594989 812 if (elf_section_data (sec)->relocs != internal_relocs)
6cdc0ccc
AM
813 free (internal_relocs);
814
b34976b6 815 return TRUE;
252b5132
RH
816
817 error_return:
c9594989 818 if (symtab_hdr->contents != (unsigned char *) isymbuf)
6cdc0ccc 819 free (isymbuf);
c9594989 820 if (elf_section_data (sec)->this_hdr.contents != contents)
6cdc0ccc 821 free (contents);
c9594989 822 if (elf_section_data (sec)->relocs != internal_relocs)
6cdc0ccc 823 free (internal_relocs);
9ad5cbcf 824
b34976b6 825 return FALSE;
252b5132
RH
826}
827
828/* Delete some bytes from a section while relaxing. FIXME: There is a
829 lot of duplication between this function and sh_relax_delete_bytes
830 in coff-sh.c. */
831
b34976b6 832static bfd_boolean
09fd220b
KK
833sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr,
834 int count)
252b5132
RH
835{
836 Elf_Internal_Shdr *symtab_hdr;
9ad5cbcf 837 unsigned int sec_shndx;
252b5132
RH
838 bfd_byte *contents;
839 Elf_Internal_Rela *irel, *irelend;
840 Elf_Internal_Rela *irelalign;
841 bfd_vma toaddr;
6cdc0ccc 842 Elf_Internal_Sym *isymbuf, *isym, *isymend;
9ad5cbcf
AM
843 struct elf_link_hash_entry **sym_hashes;
844 struct elf_link_hash_entry **end_hashes;
845 unsigned int symcount;
252b5132
RH
846 asection *o;
847
0ffa91dd 848 symtab_hdr = &elf_symtab_hdr (abfd);
6cdc0ccc 849 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
9ad5cbcf
AM
850
851 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
252b5132
RH
852
853 contents = elf_section_data (sec)->this_hdr.contents;
854
de194d85 855 /* The deletion must stop at the next ALIGN reloc for an alignment
252b5132
RH
856 power larger than the number of bytes we are deleting. */
857
858 irelalign = NULL;
eea6121a 859 toaddr = sec->size;
252b5132
RH
860
861 irel = elf_section_data (sec)->relocs;
862 irelend = irel + sec->reloc_count;
863 for (; irel < irelend; irel++)
864 {
865 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
866 && irel->r_offset > addr
867 && count < (1 << irel->r_addend))
868 {
869 irelalign = irel;
870 toaddr = irel->r_offset;
871 break;
872 }
873 }
874
875 /* Actually delete the bytes. */
dc810e39
AM
876 memmove (contents + addr, contents + addr + count,
877 (size_t) (toaddr - addr - count));
252b5132 878 if (irelalign == NULL)
eea6121a 879 sec->size -= count;
252b5132
RH
880 else
881 {
882 int i;
883
884#define NOP_OPCODE (0x0009)
885
886 BFD_ASSERT ((count & 1) == 0);
887 for (i = 0; i < count; i += 2)
dc810e39 888 bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
252b5132
RH
889 }
890
891 /* Adjust all the relocs. */
892 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
893 {
894 bfd_vma nraddr, stop;
895 bfd_vma start = 0;
896 int insn = 0;
252b5132
RH
897 int off, adjust, oinsn;
898 bfd_signed_vma voff = 0;
b34976b6 899 bfd_boolean overflow;
252b5132
RH
900
901 /* Get the new reloc address. */
902 nraddr = irel->r_offset;
903 if ((irel->r_offset > addr
904 && irel->r_offset < toaddr)
905 || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
906 && irel->r_offset == toaddr))
907 nraddr -= count;
908
909 /* See if this reloc was for the bytes we have deleted, in which
910 case we no longer care about it. Don't delete relocs which
911 represent addresses, though. */
912 if (irel->r_offset >= addr
913 && irel->r_offset < addr + count
914 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
915 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
916 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
917 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
918 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
919 (int) R_SH_NONE);
920
921 /* If this is a PC relative reloc, see if the range it covers
067653c5 922 includes the bytes we have deleted. */
252b5132
RH
923 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
924 {
925 default:
926 break;
927
928 case R_SH_DIR8WPN:
929 case R_SH_IND12W:
930 case R_SH_DIR8WPZ:
931 case R_SH_DIR8WPL:
932 start = irel->r_offset;
933 insn = bfd_get_16 (abfd, contents + nraddr);
934 break;
935 }
936
937 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
938 {
939 default:
940 start = stop = addr;
941 break;
942
943 case R_SH_DIR32:
944 /* If this reloc is against a symbol defined in this
067653c5
AM
945 section, and the symbol will not be adjusted below, we
946 must check the addend to see it will put the value in
947 range to be adjusted, and hence must be changed. */
252b5132
RH
948 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
949 {
6cdc0ccc
AM
950 isym = isymbuf + ELF32_R_SYM (irel->r_info);
951 if (isym->st_shndx == sec_shndx
952 && (isym->st_value <= addr
953 || isym->st_value >= toaddr))
252b5132
RH
954 {
955 bfd_vma val;
956
55e6e397
RS
957 if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
958 {
959 val = bfd_get_32 (abfd, contents + nraddr);
960 val += isym->st_value;
961 if (val > addr && val < toaddr)
962 bfd_put_32 (abfd, val - count, contents + nraddr);
963 }
964 else
965 {
966 val = isym->st_value + irel->r_addend;
967 if (val > addr && val < toaddr)
968 irel->r_addend -= count;
969 }
252b5132
RH
970 }
971 }
972 start = stop = addr;
973 break;
974
975 case R_SH_DIR8WPN:
976 off = insn & 0xff;
977 if (off & 0x80)
978 off -= 0x100;
979 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
980 break;
981
982 case R_SH_IND12W:
bdfaef52
JR
983 off = insn & 0xfff;
984 if (! off)
985 {
986 /* This has been made by previous relaxation. Since the
987 relocation will be against an external symbol, the
988 final relocation will just do the right thing. */
989 start = stop = addr;
990 }
252b5132
RH
991 else
992 {
252b5132
RH
993 if (off & 0x800)
994 off -= 0x1000;
995 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
bdfaef52
JR
996
997 /* The addend will be against the section symbol, thus
998 for adjusting the addend, the relevant start is the
999 start of the section.
4cc11e76 1000 N.B. If we want to abandon in-place changes here and
bdfaef52
JR
1001 test directly using symbol + addend, we have to take into
1002 account that the addend has already been adjusted by -4. */
1003 if (stop > addr && stop < toaddr)
1004 irel->r_addend -= count;
252b5132
RH
1005 }
1006 break;
1007
1008 case R_SH_DIR8WPZ:
1009 off = insn & 0xff;
1010 stop = start + 4 + off * 2;
1011 break;
1012
1013 case R_SH_DIR8WPL:
1014 off = insn & 0xff;
435b1e90 1015 stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
252b5132
RH
1016 break;
1017
1018 case R_SH_SWITCH8:
1019 case R_SH_SWITCH16:
1020 case R_SH_SWITCH32:
1021 /* These relocs types represent
1022 .word L2-L1
06e1ba78 1023 The r_addend field holds the difference between the reloc
252b5132
RH
1024 address and L1. That is the start of the reloc, and
1025 adding in the contents gives us the top. We must adjust
06e1ba78
JR
1026 both the r_offset field and the section contents.
1027 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
1028 and the elf bfd r_offset is called r_vaddr. */
252b5132 1029
06e1ba78
JR
1030 stop = irel->r_offset;
1031 start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
252b5132
RH
1032
1033 if (start > addr
1034 && start < toaddr
1035 && (stop <= addr || stop >= toaddr))
1036 irel->r_addend += count;
1037 else if (stop > addr
1038 && stop < toaddr
1039 && (start <= addr || start >= toaddr))
1040 irel->r_addend -= count;
1041
252b5132
RH
1042 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
1043 voff = bfd_get_signed_16 (abfd, contents + nraddr);
1044 else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
1045 voff = bfd_get_8 (abfd, contents + nraddr);
1046 else
1047 voff = bfd_get_signed_32 (abfd, contents + nraddr);
1048 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1049
1050 break;
1051
1052 case R_SH_USES:
1053 start = irel->r_offset;
1054 stop = (bfd_vma) ((bfd_signed_vma) start
1055 + (long) irel->r_addend
1056 + 4);
1057 break;
1058 }
1059
1060 if (start > addr
1061 && start < toaddr
1062 && (stop <= addr || stop >= toaddr))
1063 adjust = count;
1064 else if (stop > addr
1065 && stop < toaddr
1066 && (start <= addr || start >= toaddr))
1067 adjust = - count;
1068 else
1069 adjust = 0;
1070
1071 if (adjust != 0)
1072 {
1073 oinsn = insn;
b34976b6 1074 overflow = FALSE;
252b5132
RH
1075 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
1076 {
1077 default:
1078 abort ();
1079 break;
1080
1081 case R_SH_DIR8WPN:
1082 case R_SH_DIR8WPZ:
1083 insn += adjust / 2;
1084 if ((oinsn & 0xff00) != (insn & 0xff00))
b34976b6 1085 overflow = TRUE;
dc810e39 1086 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
1087 break;
1088
1089 case R_SH_IND12W:
1090 insn += adjust / 2;
1091 if ((oinsn & 0xf000) != (insn & 0xf000))
b34976b6 1092 overflow = TRUE;
dc810e39 1093 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
1094 break;
1095
1096 case R_SH_DIR8WPL:
1097 BFD_ASSERT (adjust == count || count >= 4);
1098 if (count >= 4)
1099 insn += adjust / 4;
1100 else
1101 {
1102 if ((irel->r_offset & 3) == 0)
1103 ++insn;
1104 }
1105 if ((oinsn & 0xff00) != (insn & 0xff00))
b34976b6 1106 overflow = TRUE;
dc810e39 1107 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
252b5132
RH
1108 break;
1109
851cde10
JR
1110 case R_SH_SWITCH8:
1111 voff += adjust;
1112 if (voff < 0 || voff >= 0xff)
b34976b6 1113 overflow = TRUE;
851cde10
JR
1114 bfd_put_8 (abfd, voff, contents + nraddr);
1115 break;
1116
252b5132
RH
1117 case R_SH_SWITCH16:
1118 voff += adjust;
1119 if (voff < - 0x8000 || voff >= 0x8000)
b34976b6 1120 overflow = TRUE;
dc810e39 1121 bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
252b5132
RH
1122 break;
1123
1124 case R_SH_SWITCH32:
1125 voff += adjust;
dc810e39 1126 bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
252b5132
RH
1127 break;
1128
1129 case R_SH_USES:
1130 irel->r_addend += adjust;
1131 break;
1132 }
1133
1134 if (overflow)
1135 {
4eca0228 1136 _bfd_error_handler
695344c0 1137 /* xgettext:c-format */
2dcf00ce
AM
1138 (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1139 abfd, (uint64_t) irel->r_offset);
252b5132 1140 bfd_set_error (bfd_error_bad_value);
b34976b6 1141 return FALSE;
252b5132
RH
1142 }
1143 }
1144
1145 irel->r_offset = nraddr;
1146 }
1147
1148 /* Look through all the other sections. If there contain any IMM32
1149 relocs against internal symbols which we are not going to adjust
1150 below, we may need to adjust the addends. */
1151 for (o = abfd->sections; o != NULL; o = o->next)
1152 {
1153 Elf_Internal_Rela *internal_relocs;
1154 Elf_Internal_Rela *irelscan, *irelscanend;
1155 bfd_byte *ocontents;
1156
1157 if (o == sec
1158 || (o->flags & SEC_RELOC) == 0
1159 || o->reloc_count == 0)
1160 continue;
1161
1162 /* We always cache the relocs. Perhaps, if info->keep_memory is
b34976b6 1163 FALSE, we should free them, if we are permitted to, when we
067653c5 1164 leave sh_coff_relax_section. */
45d6a902 1165 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 1166 (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE));
252b5132 1167 if (internal_relocs == NULL)
b34976b6 1168 return FALSE;
252b5132
RH
1169
1170 ocontents = NULL;
1171 irelscanend = internal_relocs + o->reloc_count;
1172 for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
1173 {
084aa3aa
JR
1174 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
1175 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
1176 {
1177 bfd_vma start, stop;
1178 bfd_signed_vma voff;
1179
1180 if (ocontents == NULL)
1181 {
1182 if (elf_section_data (o)->this_hdr.contents != NULL)
1183 ocontents = elf_section_data (o)->this_hdr.contents;
1184 else
1185 {
1186 /* We always cache the section contents.
b34976b6 1187 Perhaps, if info->keep_memory is FALSE, we
067653c5
AM
1188 should free them, if we are permitted to,
1189 when we leave sh_coff_relax_section. */
eea6121a
AM
1190 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1191 {
c9594989 1192 free (ocontents);
eea6121a
AM
1193 return FALSE;
1194 }
1195
084aa3aa
JR
1196 elf_section_data (o)->this_hdr.contents = ocontents;
1197 }
1198 }
1199
1200 stop = irelscan->r_offset;
1201 start
1202 = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
1203
1204 /* STOP is in a different section, so it won't change. */
1205 if (start > addr && start < toaddr)
1206 irelscan->r_addend += count;
1207
1208 voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
1209 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1210
1211 if (start > addr
1212 && start < toaddr
1213 && (stop <= addr || stop >= toaddr))
dc810e39 1214 bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
084aa3aa
JR
1215 ocontents + irelscan->r_offset);
1216 else if (stop > addr
1217 && stop < toaddr
1218 && (start <= addr || start >= toaddr))
dc810e39 1219 bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
084aa3aa
JR
1220 ocontents + irelscan->r_offset);
1221 }
1222
252b5132
RH
1223 if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
1224 continue;
1225
1226 if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
1227 continue;
1228
252b5132 1229
6cdc0ccc
AM
1230 isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
1231 if (isym->st_shndx == sec_shndx
1232 && (isym->st_value <= addr
1233 || isym->st_value >= toaddr))
252b5132
RH
1234 {
1235 bfd_vma val;
1236
1237 if (ocontents == NULL)
1238 {
1239 if (elf_section_data (o)->this_hdr.contents != NULL)
1240 ocontents = elf_section_data (o)->this_hdr.contents;
1241 else
1242 {
1243 /* We always cache the section contents.
b34976b6 1244 Perhaps, if info->keep_memory is FALSE, we
067653c5
AM
1245 should free them, if we are permitted to,
1246 when we leave sh_coff_relax_section. */
eea6121a
AM
1247 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1248 {
c9594989 1249 free (ocontents);
eea6121a
AM
1250 return FALSE;
1251 }
1252
252b5132
RH
1253 elf_section_data (o)->this_hdr.contents = ocontents;
1254 }
1255 }
1256
1257 val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
6cdc0ccc 1258 val += isym->st_value;
252b5132
RH
1259 if (val > addr && val < toaddr)
1260 bfd_put_32 (abfd, val - count,
1261 ocontents + irelscan->r_offset);
1262 }
1263 }
1264 }
1265
1266 /* Adjust the local symbols defined in this section. */
6cdc0ccc
AM
1267 isymend = isymbuf + symtab_hdr->sh_info;
1268 for (isym = isymbuf; isym < isymend; isym++)
252b5132 1269 {
6cdc0ccc
AM
1270 if (isym->st_shndx == sec_shndx
1271 && isym->st_value > addr
1272 && isym->st_value < toaddr)
1273 isym->st_value -= count;
252b5132
RH
1274 }
1275
1276 /* Now adjust the global symbols defined in this section. */
9ad5cbcf
AM
1277 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1278 - symtab_hdr->sh_info);
1279 sym_hashes = elf_sym_hashes (abfd);
1280 end_hashes = sym_hashes + symcount;
1281 for (; sym_hashes < end_hashes; sym_hashes++)
252b5132 1282 {
9ad5cbcf
AM
1283 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1284 if ((sym_hash->root.type == bfd_link_hash_defined
1285 || sym_hash->root.type == bfd_link_hash_defweak)
1286 && sym_hash->root.u.def.section == sec
1287 && sym_hash->root.u.def.value > addr
1288 && sym_hash->root.u.def.value < toaddr)
252b5132 1289 {
9ad5cbcf 1290 sym_hash->root.u.def.value -= count;
252b5132
RH
1291 }
1292 }
1293
1294 /* See if we can move the ALIGN reloc forward. We have adjusted
1295 r_offset for it already. */
1296 if (irelalign != NULL)
1297 {
1298 bfd_vma alignto, alignaddr;
1299
1300 alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
1301 alignaddr = BFD_ALIGN (irelalign->r_offset,
1302 1 << irelalign->r_addend);
1303 if (alignto != alignaddr)
1304 {
1305 /* Tail recursion. */
1306 return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
dc810e39 1307 (int) (alignto - alignaddr));
252b5132
RH
1308 }
1309 }
1310
b34976b6 1311 return TRUE;
252b5132
RH
1312}
1313
1314/* Look for loads and stores which we can align to four byte
1315 boundaries. This is like sh_align_loads in coff-sh.c. */
1316
b34976b6 1317static bfd_boolean
09fd220b
KK
1318sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
1319 Elf_Internal_Rela *internal_relocs,
1320 bfd_byte *contents ATTRIBUTE_UNUSED,
1321 bfd_boolean *pswapped)
252b5132
RH
1322{
1323 Elf_Internal_Rela *irel, *irelend;
1324 bfd_vma *labels = NULL;
1325 bfd_vma *label, *label_end;
dc810e39 1326 bfd_size_type amt;
252b5132 1327
b34976b6 1328 *pswapped = FALSE;
252b5132
RH
1329
1330 irelend = internal_relocs + sec->reloc_count;
1331
1332 /* Get all the addresses with labels on them. */
dc810e39
AM
1333 amt = sec->reloc_count;
1334 amt *= sizeof (bfd_vma);
1335 labels = (bfd_vma *) bfd_malloc (amt);
252b5132
RH
1336 if (labels == NULL)
1337 goto error_return;
1338 label_end = labels;
1339 for (irel = internal_relocs; irel < irelend; irel++)
1340 {
1341 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
1342 {
1343 *label_end = irel->r_offset;
1344 ++label_end;
1345 }
1346 }
1347
1348 /* Note that the assembler currently always outputs relocs in
1349 address order. If that ever changes, this code will need to sort
1350 the label values and the relocs. */
1351
1352 label = labels;
1353
1354 for (irel = internal_relocs; irel < irelend; irel++)
1355 {
1356 bfd_vma start, stop;
1357
1358 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
1359 continue;
1360
1361 start = irel->r_offset;
1362
1363 for (irel++; irel < irelend; irel++)
1364 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
1365 break;
1366 if (irel < irelend)
1367 stop = irel->r_offset;
1368 else
eea6121a 1369 stop = sec->size;
252b5132
RH
1370
1371 if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
09fd220b 1372 internal_relocs, &label,
252b5132
RH
1373 label_end, start, stop, pswapped))
1374 goto error_return;
1375 }
1376
1377 free (labels);
1378
b34976b6 1379 return TRUE;
252b5132
RH
1380
1381 error_return:
c9594989 1382 free (labels);
b34976b6 1383 return FALSE;
252b5132
RH
1384}
1385
1386/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
1387
b34976b6 1388static bfd_boolean
09fd220b
KK
1389sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs,
1390 bfd_byte *contents, bfd_vma addr)
252b5132
RH
1391{
1392 Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
1393 unsigned short i1, i2;
1394 Elf_Internal_Rela *irel, *irelend;
1395
1396 /* Swap the instructions themselves. */
1397 i1 = bfd_get_16 (abfd, contents + addr);
1398 i2 = bfd_get_16 (abfd, contents + addr + 2);
dc810e39
AM
1399 bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
1400 bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
252b5132
RH
1401
1402 /* Adjust all reloc addresses. */
1403 irelend = internal_relocs + sec->reloc_count;
1404 for (irel = internal_relocs; irel < irelend; irel++)
1405 {
1406 enum elf_sh_reloc_type type;
1407 int add;
1408
1409 /* There are a few special types of relocs that we don't want to
067653c5
AM
1410 adjust. These relocs do not apply to the instruction itself,
1411 but are only associated with the address. */
252b5132
RH
1412 type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
1413 if (type == R_SH_ALIGN
1414 || type == R_SH_CODE
1415 || type == R_SH_DATA
1416 || type == R_SH_LABEL)
1417 continue;
1418
1419 /* If an R_SH_USES reloc points to one of the addresses being
067653c5
AM
1420 swapped, we must adjust it. It would be incorrect to do this
1421 for a jump, though, since we want to execute both
1422 instructions after the jump. (We have avoided swapping
1423 around a label, so the jump will not wind up executing an
1424 instruction it shouldn't). */
252b5132
RH
1425 if (type == R_SH_USES)
1426 {
1427 bfd_vma off;
1428
1429 off = irel->r_offset + 4 + irel->r_addend;
1430 if (off == addr)
1431 irel->r_offset += 2;
1432 else if (off == addr + 2)
1433 irel->r_offset -= 2;
1434 }
1435
1436 if (irel->r_offset == addr)
1437 {
1438 irel->r_offset += 2;
1439 add = -2;
1440 }
1441 else if (irel->r_offset == addr + 2)
1442 {
1443 irel->r_offset -= 2;
1444 add = 2;
1445 }
1446 else
1447 add = 0;
1448
1449 if (add != 0)
1450 {
1451 bfd_byte *loc;
1452 unsigned short insn, oinsn;
b34976b6 1453 bfd_boolean overflow;
252b5132
RH
1454
1455 loc = contents + irel->r_offset;
b34976b6 1456 overflow = FALSE;
252b5132
RH
1457 switch (type)
1458 {
1459 default:
1460 break;
1461
1462 case R_SH_DIR8WPN:
1463 case R_SH_DIR8WPZ:
1464 insn = bfd_get_16 (abfd, loc);
1465 oinsn = insn;
1466 insn += add / 2;
1467 if ((oinsn & 0xff00) != (insn & 0xff00))
b34976b6 1468 overflow = TRUE;
dc810e39 1469 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
1470 break;
1471
1472 case R_SH_IND12W:
1473 insn = bfd_get_16 (abfd, loc);
1474 oinsn = insn;
1475 insn += add / 2;
1476 if ((oinsn & 0xf000) != (insn & 0xf000))
b34976b6 1477 overflow = TRUE;
dc810e39 1478 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
1479 break;
1480
1481 case R_SH_DIR8WPL:
1482 /* This reloc ignores the least significant 3 bits of
067653c5
AM
1483 the program counter before adding in the offset.
1484 This means that if ADDR is at an even address, the
1485 swap will not affect the offset. If ADDR is an at an
1486 odd address, then the instruction will be crossing a
1487 four byte boundary, and must be adjusted. */
252b5132
RH
1488 if ((addr & 3) != 0)
1489 {
1490 insn = bfd_get_16 (abfd, loc);
1491 oinsn = insn;
1492 insn += add / 2;
1493 if ((oinsn & 0xff00) != (insn & 0xff00))
b34976b6 1494 overflow = TRUE;
dc810e39 1495 bfd_put_16 (abfd, (bfd_vma) insn, loc);
252b5132
RH
1496 }
1497
1498 break;
1499 }
1500
1501 if (overflow)
1502 {
4eca0228 1503 _bfd_error_handler
695344c0 1504 /* xgettext:c-format */
2dcf00ce
AM
1505 (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"),
1506 abfd, (uint64_t) irel->r_offset);
252b5132 1507 bfd_set_error (bfd_error_bad_value);
b34976b6 1508 return FALSE;
252b5132
RH
1509 }
1510 }
1511 }
1512
b34976b6 1513 return TRUE;
252b5132
RH
1514}
1515\f
55e6e397
RS
1516/* Describes one of the various PLT styles. */
1517
1518struct elf_sh_plt_info
1519{
1520 /* The template for the first PLT entry, or NULL if there is no special
1521 first entry. */
1522 const bfd_byte *plt0_entry;
1523
1524 /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */
1525 bfd_vma plt0_entry_size;
1526
1527 /* Index I is the offset into PLT0_ENTRY of a pointer to
1528 _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE
1529 if there is no such pointer. */
1530 bfd_vma plt0_got_fields[3];
1531
1532 /* The template for a symbol's PLT entry. */
1533 const bfd_byte *symbol_entry;
1534
1535 /* The size of SYMBOL_ENTRY in bytes. */
1536 bfd_vma symbol_entry_size;
1537
1538 /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used
1539 on all targets. The comments by each member indicate the value
1540 that the field must hold. */
1541 struct {
1542 bfd_vma got_entry; /* the address of the symbol's .got.plt entry */
1543 bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */
1544 bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */
8e45593f
NC
1545 bfd_boolean got20; /* TRUE if got_entry points to a movi20
1546 instruction (instead of a constant pool
1547 entry). */
55e6e397
RS
1548 } symbol_fields;
1549
1550 /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
1551 bfd_vma symbol_resolve_offset;
8e45593f
NC
1552
1553 /* A different PLT layout which can be used for the first
1554 MAX_SHORT_PLT entries. It must share the same plt0. NULL in
1555 other cases. */
1556 const struct elf_sh_plt_info *short_plt;
55e6e397
RS
1557};
1558
37c644f2 1559/* The size in bytes of an entry in the procedure linkage table. */
252b5132 1560
55e6e397 1561#define ELF_PLT_ENTRY_SIZE 28
37c644f2
AO
1562
1563/* First entry in an absolute procedure linkage table look like this. */
1564
6c426cf3 1565/* Note - this code has been "optimised" not to use r2. r2 is used by
4cc11e76 1566 GCC to return the address of large structures, so it should not be
6c426cf3
NC
1567 corrupted here. This does mean however, that this PLT does not conform
1568 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
1569 and r2 contains the GOT id. This version stores the GOT id in r0 and
1570 ignores the type. Loaders can easily detect this difference however,
1571 since the type will always be 0 or 8, and the GOT ids will always be
1572 greater than or equal to 12. */
55e6e397 1573static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1574{
1575 0xd0, 0x05, /* mov.l 2f,r0 */
1576 0x60, 0x02, /* mov.l @r0,r0 */
1577 0x2f, 0x06, /* mov.l r0,@-r15 */
1578 0xd0, 0x03, /* mov.l 1f,r0 */
1579 0x60, 0x02, /* mov.l @r0,r0 */
1580 0x40, 0x2b, /* jmp @r0 */
1581 0x60, 0xf6, /* mov.l @r15+,r0 */
1582 0x00, 0x09, /* nop */
1583 0x00, 0x09, /* nop */
1584 0x00, 0x09, /* nop */
1585 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1586 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1587};
1588
55e6e397 1589static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1590{
1591 0x05, 0xd0, /* mov.l 2f,r0 */
1592 0x02, 0x60, /* mov.l @r0,r0 */
1593 0x06, 0x2f, /* mov.l r0,@-r15 */
1594 0x03, 0xd0, /* mov.l 1f,r0 */
1595 0x02, 0x60, /* mov.l @r0,r0 */
1596 0x2b, 0x40, /* jmp @r0 */
1597 0xf6, 0x60, /* mov.l @r15+,r0 */
1598 0x09, 0x00, /* nop */
1599 0x09, 0x00, /* nop */
1600 0x09, 0x00, /* nop */
1601 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1602 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1603};
1604
1605/* Sebsequent entries in an absolute procedure linkage table look like
1606 this. */
1607
55e6e397 1608static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1609{
1610 0xd0, 0x04, /* mov.l 1f,r0 */
55e6e397 1611 0x60, 0x02, /* mov.l @(r0,r12),r0 */
6c426cf3
NC
1612 0xd1, 0x02, /* mov.l 0f,r1 */
1613 0x40, 0x2b, /* jmp @r0 */
1614 0x60, 0x13, /* mov r1,r0 */
1615 0xd1, 0x03, /* mov.l 2f,r1 */
1616 0x40, 0x2b, /* jmp @r0 */
1617 0x00, 0x09, /* nop */
1618 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1619 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1620 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1621};
1622
55e6e397 1623static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1624{
1625 0x04, 0xd0, /* mov.l 1f,r0 */
1626 0x02, 0x60, /* mov.l @r0,r0 */
1627 0x02, 0xd1, /* mov.l 0f,r1 */
1628 0x2b, 0x40, /* jmp @r0 */
1629 0x13, 0x60, /* mov r1,r0 */
1630 0x03, 0xd1, /* mov.l 2f,r1 */
1631 0x2b, 0x40, /* jmp @r0 */
1632 0x09, 0x00, /* nop */
1633 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1634 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1635 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1636};
1637
1638/* Entries in a PIC procedure linkage table look like this. */
1639
55e6e397 1640static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1641{
1642 0xd0, 0x04, /* mov.l 1f,r0 */
1643 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1644 0x40, 0x2b, /* jmp @r0 */
1645 0x00, 0x09, /* nop */
1646 0x50, 0xc2, /* mov.l @(8,r12),r0 */
1647 0xd1, 0x03, /* mov.l 2f,r1 */
1648 0x40, 0x2b, /* jmp @r0 */
1649 0x50, 0xc1, /* mov.l @(4,r12),r0 */
1650 0x00, 0x09, /* nop */
1651 0x00, 0x09, /* nop */
1652 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1653 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1654};
1655
55e6e397 1656static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
6c426cf3
NC
1657{
1658 0x04, 0xd0, /* mov.l 1f,r0 */
1659 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1660 0x2b, 0x40, /* jmp @r0 */
1661 0x09, 0x00, /* nop */
1662 0xc2, 0x50, /* mov.l @(8,r12),r0 */
1663 0x03, 0xd1, /* mov.l 2f,r1 */
1664 0x2b, 0x40, /* jmp @r0 */
1665 0xc1, 0x50, /* mov.l @(4,r12),r0 */
1666 0x09, 0x00, /* nop */
1667 0x09, 0x00, /* nop */
1668 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1669 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1670};
1671
55e6e397
RS
1672static const struct elf_sh_plt_info elf_sh_plts[2][2] = {
1673 {
1674 {
1675 /* Big-endian non-PIC. */
1676 elf_sh_plt0_entry_be,
1677 ELF_PLT_ENTRY_SIZE,
1678 { MINUS_ONE, 24, 20 },
1679 elf_sh_plt_entry_be,
1680 ELF_PLT_ENTRY_SIZE,
8e45593f
NC
1681 { 20, 16, 24, FALSE },
1682 8,
1683 NULL
55e6e397
RS
1684 },
1685 {
1686 /* Little-endian non-PIC. */
1687 elf_sh_plt0_entry_le,
1688 ELF_PLT_ENTRY_SIZE,
1689 { MINUS_ONE, 24, 20 },
1690 elf_sh_plt_entry_le,
1691 ELF_PLT_ENTRY_SIZE,
8e45593f
NC
1692 { 20, 16, 24, FALSE },
1693 8,
1694 NULL
55e6e397
RS
1695 },
1696 },
1697 {
1698 {
1699 /* Big-endian PIC. */
1700 elf_sh_plt0_entry_be,
1701 ELF_PLT_ENTRY_SIZE,
1702 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1703 elf_sh_pic_plt_entry_be,
1704 ELF_PLT_ENTRY_SIZE,
8e45593f
NC
1705 { 20, MINUS_ONE, 24, FALSE },
1706 8,
1707 NULL
55e6e397
RS
1708 },
1709 {
1710 /* Little-endian PIC. */
1711 elf_sh_plt0_entry_le,
1712 ELF_PLT_ENTRY_SIZE,
1713 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1714 elf_sh_pic_plt_entry_le,
1715 ELF_PLT_ENTRY_SIZE,
8e45593f
NC
1716 { 20, MINUS_ONE, 24, FALSE },
1717 8,
1718 NULL
55e6e397
RS
1719 },
1720 }
1721};
252b5132 1722
55e6e397
RS
1723#define VXWORKS_PLT_HEADER_SIZE 12
1724#define VXWORKS_PLT_ENTRY_SIZE 24
252b5132 1725
55e6e397
RS
1726static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] =
1727{
1728 0xd1, 0x01, /* mov.l @(8,pc),r1 */
1729 0x61, 0x12, /* mov.l @r1,r1 */
1730 0x41, 0x2b, /* jmp @r1 */
1731 0x00, 0x09, /* nop */
1732 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1733};
252b5132 1734
55e6e397
RS
1735static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] =
1736{
1737 0x01, 0xd1, /* mov.l @(8,pc),r1 */
1738 0x12, 0x61, /* mov.l @r1,r1 */
1739 0x2b, 0x41, /* jmp @r1 */
1740 0x09, 0x00, /* nop */
1741 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1742};
1743
1744static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
1745{
1746 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1747 0x60, 0x02, /* mov.l @r0,r0 */
1748 0x40, 0x2b, /* jmp @r0 */
1749 0x00, 0x09, /* nop */
1750 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1751 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1752 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */
1753 0x00, 0x09, /* nop */
1754 0x00, 0x09, /* nop */
1755 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1756};
1757
1758static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
1759{
1760 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1761 0x02, 0x60, /* mov.l @r0,r0 */
1762 0x2b, 0x40, /* jmp @r0 */
1763 0x09, 0x00, /* nop */
1764 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1765 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1766 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */
1767 0x09, 0x00, /* nop */
1768 0x09, 0x00, /* nop */
1769 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1770};
1771
1772static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
1773{
1774 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1775 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1776 0x40, 0x2b, /* jmp @r0 */
1777 0x00, 0x09, /* nop */
1778 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1779 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1780 0x51, 0xc2, /* mov.l @(8,r12),r1 */
1781 0x41, 0x2b, /* jmp @r1 */
1782 0x00, 0x09, /* nop */
1783 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1784};
1785
1786static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
1787{
1788 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1789 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1790 0x2b, 0x40, /* jmp @r0 */
1791 0x09, 0x00, /* nop */
1792 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1793 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1794 0xc2, 0x51, /* mov.l @(8,r12),r1 */
1795 0x2b, 0x41, /* jmp @r1 */
1796 0x09, 0x00, /* nop */
1797 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1798};
1799
1800static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = {
1801 {
1802 {
1803 /* Big-endian non-PIC. */
1804 vxworks_sh_plt0_entry_be,
1805 VXWORKS_PLT_HEADER_SIZE,
1806 { MINUS_ONE, MINUS_ONE, 8 },
1807 vxworks_sh_plt_entry_be,
1808 VXWORKS_PLT_ENTRY_SIZE,
8e45593f
NC
1809 { 8, 14, 20, FALSE },
1810 12,
1811 NULL
55e6e397
RS
1812 },
1813 {
1814 /* Little-endian non-PIC. */
1815 vxworks_sh_plt0_entry_le,
1816 VXWORKS_PLT_HEADER_SIZE,
1817 { MINUS_ONE, MINUS_ONE, 8 },
1818 vxworks_sh_plt_entry_le,
1819 VXWORKS_PLT_ENTRY_SIZE,
8e45593f
NC
1820 { 8, 14, 20, FALSE },
1821 12,
1822 NULL
55e6e397
RS
1823 },
1824 },
1825 {
1826 {
1827 /* Big-endian PIC. */
1828 NULL,
1829 0,
1830 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1831 vxworks_sh_pic_plt_entry_be,
1832 VXWORKS_PLT_ENTRY_SIZE,
8e45593f
NC
1833 { 8, MINUS_ONE, 20, FALSE },
1834 12,
1835 NULL
55e6e397
RS
1836 },
1837 {
1838 /* Little-endian PIC. */
1839 NULL,
1840 0,
1841 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1842 vxworks_sh_pic_plt_entry_le,
1843 VXWORKS_PLT_ENTRY_SIZE,
8e45593f
NC
1844 { 8, MINUS_ONE, 20, FALSE },
1845 12,
1846 NULL
55e6e397
RS
1847 },
1848 }
1849};
9bdafcce 1850
8e45593f
NC
1851/* FDPIC PLT entries. Two unimplemented optimizations for lazy
1852 binding are to omit the lazy binding stub when linking with -z now
1853 and to move lazy binding stubs into a separate region for better
1854 cache behavior. */
1855
1856#define FDPIC_PLT_ENTRY_SIZE 28
1857#define FDPIC_PLT_LAZY_OFFSET 20
1858
1859/* FIXME: The lazy binding stub requires a plt0 - which may need to be
1860 duplicated if it is out of range, or which can be inlined. So
1861 right now it is always inlined, which wastes a word per stub. It
1862 might be easier to handle the duplication if we put the lazy
1863 stubs separately. */
1864
1865static const bfd_byte fdpic_sh_plt_entry_be[FDPIC_PLT_ENTRY_SIZE] =
1866{
1867 0xd0, 0x02, /* mov.l @(12,pc),r0 */
1868 0x01, 0xce, /* mov.l @(r0,r12),r1 */
1869 0x70, 0x04, /* add #4, r0 */
1870 0x41, 0x2b, /* jmp @r1 */
1871 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
1872 0x00, 0x09, /* nop */
1873 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
1874 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1875 0x60, 0xc2, /* mov.l @r12,r0 */
1876 0x40, 0x2b, /* jmp @r0 */
1877 0x53, 0xc1, /* mov.l @(4,r12),r3 */
1878 0x00, 0x09, /* nop */
1879};
1880
1881static const bfd_byte fdpic_sh_plt_entry_le[FDPIC_PLT_ENTRY_SIZE] =
1882{
1883 0x02, 0xd0, /* mov.l @(12,pc),r0 */
1884 0xce, 0x01, /* mov.l @(r0,r12),r1 */
1885 0x04, 0x70, /* add #4, r0 */
1886 0x2b, 0x41, /* jmp @r1 */
1887 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
1888 0x09, 0x00, /* nop */
1889 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
1890 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1891 0xc2, 0x60, /* mov.l @r12,r0 */
1892 0x2b, 0x40, /* jmp @r0 */
1893 0xc1, 0x53, /* mov.l @(4,r12),r3 */
1894 0x09, 0x00, /* nop */
1895};
1896
1897static const struct elf_sh_plt_info fdpic_sh_plts[2] = {
1898 {
1899 /* Big-endian PIC. */
1900 NULL,
1901 0,
1902 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1903 fdpic_sh_plt_entry_be,
1904 FDPIC_PLT_ENTRY_SIZE,
1905 { 12, MINUS_ONE, 16, FALSE },
1906 FDPIC_PLT_LAZY_OFFSET,
1907 NULL
1908 },
1909 {
1910 /* Little-endian PIC. */
1911 NULL,
1912 0,
1913 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1914 fdpic_sh_plt_entry_le,
1915 FDPIC_PLT_ENTRY_SIZE,
1916 { 12, MINUS_ONE, 16, FALSE },
1917 FDPIC_PLT_LAZY_OFFSET,
1918 NULL
1919 },
1920};
1921
1922/* On SH2A, we can use the movi20 instruction to generate shorter PLT
1923 entries for the first 64K slots. We use the normal FDPIC PLT entry
1924 past that point; we could also use movi20s, which might be faster,
1925 but would not be any smaller. */
1926
1927#define FDPIC_SH2A_PLT_ENTRY_SIZE 24
1928#define FDPIC_SH2A_PLT_LAZY_OFFSET 16
1929
1930static const bfd_byte fdpic_sh2a_plt_entry_be[FDPIC_SH2A_PLT_ENTRY_SIZE] =
1931{
1932 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
1933 0x01, 0xce, /* mov.l @(r0,r12),r1 */
1934 0x70, 0x04, /* add #4, r0 */
1935 0x41, 0x2b, /* jmp @r1 */
1936 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
1937 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1938 0x60, 0xc2, /* mov.l @r12,r0 */
1939 0x40, 0x2b, /* jmp @r0 */
1940 0x53, 0xc1, /* mov.l @(4,r12),r3 */
1941 0x00, 0x09, /* nop */
1942};
1943
1944static const bfd_byte fdpic_sh2a_plt_entry_le[FDPIC_SH2A_PLT_ENTRY_SIZE] =
1945{
1946 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
1947 0xce, 0x01, /* mov.l @(r0,r12),r1 */
1948 0x04, 0x70, /* add #4, r0 */
1949 0x2b, 0x41, /* jmp @r1 */
1950 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
1951 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1952 0xc2, 0x60, /* mov.l @r12,r0 */
1953 0x2b, 0x40, /* jmp @r0 */
1954 0xc1, 0x53, /* mov.l @(4,r12),r3 */
1955 0x09, 0x00, /* nop */
1956};
1957
1958static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be = {
1959 /* Big-endian FDPIC, max index 64K. */
1960 NULL,
1961 0,
1962 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1963 fdpic_sh2a_plt_entry_be,
1964 FDPIC_SH2A_PLT_ENTRY_SIZE,
1965 { 0, MINUS_ONE, 12, TRUE },
1966 FDPIC_SH2A_PLT_LAZY_OFFSET,
1967 NULL
1968};
1969
1970static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le = {
1971 /* Little-endian FDPIC, max index 64K. */
1972 NULL,
1973 0,
1974 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1975 fdpic_sh2a_plt_entry_le,
1976 FDPIC_SH2A_PLT_ENTRY_SIZE,
1977 { 0, MINUS_ONE, 12, TRUE },
1978 FDPIC_SH2A_PLT_LAZY_OFFSET,
1979 NULL
1980};
1981
1982static const struct elf_sh_plt_info fdpic_sh2a_plts[2] = {
1983 {
1984 /* Big-endian PIC. */
1985 NULL,
1986 0,
1987 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1988 fdpic_sh_plt_entry_be,
1989 FDPIC_PLT_ENTRY_SIZE,
1990 { 12, MINUS_ONE, 16, FALSE },
1991 FDPIC_PLT_LAZY_OFFSET,
1992 &fdpic_sh2a_short_plt_be
1993 },
1994 {
1995 /* Little-endian PIC. */
1996 NULL,
1997 0,
1998 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1999 fdpic_sh_plt_entry_le,
2000 FDPIC_PLT_ENTRY_SIZE,
2001 { 12, MINUS_ONE, 16, FALSE },
2002 FDPIC_PLT_LAZY_OFFSET,
2003 &fdpic_sh2a_short_plt_le
2004 },
2005};
2006
55e6e397
RS
2007/* Return the type of PLT associated with ABFD. PIC_P is true if
2008 the object is position-independent. */
9bdafcce 2009
55e6e397 2010static const struct elf_sh_plt_info *
8e45593f 2011get_plt_info (bfd *abfd, bfd_boolean pic_p)
55e6e397 2012{
8e45593f
NC
2013 if (fdpic_object_p (abfd))
2014 {
2015 /* If any input file requires SH2A we can use a shorter PLT
2016 sequence. */
2017 if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd)) & arch_sh2a_base)
2018 return &fdpic_sh2a_plts[!bfd_big_endian (abfd)];
2019 else
2020 return &fdpic_sh_plts[!bfd_big_endian (abfd)];
2021 }
55e6e397
RS
2022 if (vxworks_object_p (abfd))
2023 return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)];
2024 return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)];
2025}
9bdafcce 2026
55e6e397
RS
2027/* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
2028 VALUE is the field's value and CODE_P is true if VALUE refers to code,
2029 not data. */
9bdafcce 2030
55e6e397
RS
2031inline static void
2032install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED,
2033 unsigned long value, bfd_byte *addr)
2034{
2035 bfd_put_32 (output_bfd, value, addr);
2036}
015551fc 2037
8e45593f
NC
2038/* The number of PLT entries which can use a shorter PLT, if any.
2039 Currently always 64K, since only SH-2A FDPIC uses this; a
2040 20-bit movi20 can address that many function descriptors below
2041 _GLOBAL_OFFSET_TABLE_. */
2042#define MAX_SHORT_PLT 65536
2043
55e6e397
RS
2044/* Return the index of the PLT entry at byte offset OFFSET. */
2045
2046static bfd_vma
2047get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset)
2048{
8e45593f
NC
2049 bfd_vma plt_index = 0;
2050
2051 offset -= info->plt0_entry_size;
2052 if (info->short_plt != NULL)
2053 {
2054 if (offset > MAX_SHORT_PLT * info->short_plt->symbol_entry_size)
2055 {
2056 plt_index = MAX_SHORT_PLT;
2057 offset -= MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2058 }
2059 else
2060 info = info->short_plt;
2061 }
2062 return plt_index + offset / info->symbol_entry_size;
55e6e397
RS
2063}
2064
2065/* Do the inverse operation. */
2066
2067static bfd_vma
91d6fa6a 2068get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index)
55e6e397 2069{
8e45593f
NC
2070 bfd_vma offset = 0;
2071
2072 if (info->short_plt != NULL)
2073 {
2074 if (plt_index > MAX_SHORT_PLT)
2075 {
2076 offset = MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2077 plt_index -= MAX_SHORT_PLT;
2078 }
2079 else
2080 info = info->short_plt;
2081 }
2082 return (offset + info->plt0_entry_size
2083 + (plt_index * info->symbol_entry_size));
55e6e397
RS
2084}
2085
8e45593f
NC
2086union gotref
2087{
2088 bfd_signed_vma refcount;
2089 bfd_vma offset;
2090};
2091
37c644f2
AO
2092/* sh ELF linker hash entry. */
2093
38b1a46c
NC
2094struct elf_sh_link_hash_entry
2095{
37c644f2
AO
2096 struct elf_link_hash_entry root;
2097
4989d792 2098 bfd_signed_vma gotplt_refcount;
3376eaf5 2099
8e45593f
NC
2100 /* A local function descriptor, for FDPIC. The refcount counts
2101 R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20
2102 relocations; the PLT and GOT entry are accounted
2103 for separately. After adjust_dynamic_symbol, the offset is
2104 MINUS_ONE if there is no local descriptor (dynamic linker
2105 managed and no PLT entry, or undefined weak non-dynamic).
2106 During check_relocs we do not yet know whether the local
2107 descriptor will be canonical. */
2108 union gotref funcdesc;
2109
2110 /* How many of the above refcounted relocations were R_SH_FUNCDESC,
2111 and thus require fixups or relocations. */
2112 bfd_signed_vma abs_funcdesc_refcount;
2113
85e02784 2114 enum got_type {
8e45593f
NC
2115 GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC
2116 } got_type;
3376eaf5
KK
2117};
2118
2119#define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
2120
2121struct sh_elf_obj_tdata
2122{
2123 struct elf_obj_tdata root;
2124
8e45593f
NC
2125 /* got_type for each local got entry. */
2126 char *local_got_type;
2127
2128 /* Function descriptor refcount and offset for each local symbol. */
2129 union gotref *local_funcdesc;
37c644f2
AO
2130};
2131
3376eaf5
KK
2132#define sh_elf_tdata(abfd) \
2133 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2134
8e45593f
NC
2135#define sh_elf_local_got_type(abfd) \
2136 (sh_elf_tdata (abfd)->local_got_type)
2137
2138#define sh_elf_local_funcdesc(abfd) \
2139 (sh_elf_tdata (abfd)->local_funcdesc)
3376eaf5 2140
0ffa91dd
NC
2141#define is_sh_elf(bfd) \
2142 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2143 && elf_tdata (bfd) != NULL \
4dfe6ac6 2144 && elf_object_id (bfd) == SH_ELF_DATA)
0ffa91dd 2145
3376eaf5
KK
2146/* Override the generic function because we need to store sh_elf_obj_tdata
2147 as the specific tdata. */
2148
b34976b6 2149static bfd_boolean
09fd220b 2150sh_elf_mkobject (bfd *abfd)
3376eaf5 2151{
0ffa91dd 2152 return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata),
4dfe6ac6 2153 SH_ELF_DATA);
3376eaf5 2154}
b34976b6 2155
37c644f2
AO
2156/* sh ELF linker hash table. */
2157
38b1a46c
NC
2158struct elf_sh_link_hash_table
2159{
37c644f2 2160 struct elf_link_hash_table root;
37c644f2 2161
067653c5 2162 /* Short-cuts to get to dynamic linker sections. */
067653c5
AM
2163 asection *sdynbss;
2164 asection *srelbss;
8e45593f
NC
2165 asection *sfuncdesc;
2166 asection *srelfuncdesc;
2167 asection *srofixup;
37c644f2 2168
55e6e397
RS
2169 /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
2170 asection *srelplt2;
2171
87d72d41
AM
2172 /* Small local sym cache. */
2173 struct sym_cache sym_cache;
3376eaf5
KK
2174
2175 /* A counter or offset to track a TLS got entry. */
2176 union
2177 {
2178 bfd_signed_vma refcount;
2179 bfd_vma offset;
2180 } tls_ldm_got;
55e6e397
RS
2181
2182 /* The type of PLT to use. */
2183 const struct elf_sh_plt_info *plt_info;
2184
2185 /* True if the target system is VxWorks. */
2186 bfd_boolean vxworks_p;
8e45593f
NC
2187
2188 /* True if the target system uses FDPIC. */
2189 bfd_boolean fdpic_p;
067653c5 2190};
37c644f2
AO
2191
2192/* Traverse an sh ELF linker hash table. */
2193
2194#define sh_elf_link_hash_traverse(table, func, info) \
2195 (elf_link_hash_traverse \
2196 (&(table)->root, \
09fd220b 2197 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
37c644f2
AO
2198 (info)))
2199
2200/* Get the sh ELF linker hash table from a link_info structure. */
2201
2202#define sh_elf_hash_table(p) \
4dfe6ac6
NC
2203 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
2204 == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL)
37c644f2
AO
2205
2206/* Create an entry in an sh ELF linker hash table. */
2207
2208static struct bfd_hash_entry *
09fd220b
KK
2209sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2210 struct bfd_hash_table *table,
2211 const char *string)
37c644f2
AO
2212{
2213 struct elf_sh_link_hash_entry *ret =
2214 (struct elf_sh_link_hash_entry *) entry;
2215
2216 /* Allocate the structure if it has not already been allocated by a
2217 subclass. */
2218 if (ret == (struct elf_sh_link_hash_entry *) NULL)
2219 ret = ((struct elf_sh_link_hash_entry *)
2220 bfd_hash_allocate (table,
2221 sizeof (struct elf_sh_link_hash_entry)));
2222 if (ret == (struct elf_sh_link_hash_entry *) NULL)
2223 return (struct bfd_hash_entry *) ret;
2224
2225 /* Call the allocation method of the superclass. */
2226 ret = ((struct elf_sh_link_hash_entry *)
2227 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2228 table, string));
2229 if (ret != (struct elf_sh_link_hash_entry *) NULL)
2230 {
396a6083 2231 ret->gotplt_refcount = 0;
8e45593f
NC
2232 ret->funcdesc.refcount = 0;
2233 ret->abs_funcdesc_refcount = 0;
2234 ret->got_type = GOT_UNKNOWN;
37c644f2
AO
2235 }
2236
2237 return (struct bfd_hash_entry *) ret;
2238}
2239
2240/* Create an sh ELF linker hash table. */
2241
2242static struct bfd_link_hash_table *
09fd220b 2243sh_elf_link_hash_table_create (bfd *abfd)
37c644f2
AO
2244{
2245 struct elf_sh_link_hash_table *ret;
986f0783 2246 size_t amt = sizeof (struct elf_sh_link_hash_table);
37c644f2 2247
0e5de31a 2248 ret = (struct elf_sh_link_hash_table *) bfd_zmalloc (amt);
37c644f2
AO
2249 if (ret == (struct elf_sh_link_hash_table *) NULL)
2250 return NULL;
2251
66eb6687
AM
2252 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
2253 sh_elf_link_hash_newfunc,
4dfe6ac6
NC
2254 sizeof (struct elf_sh_link_hash_entry),
2255 SH_ELF_DATA))
37c644f2 2256 {
e2d34d7d 2257 free (ret);
37c644f2
AO
2258 return NULL;
2259 }
2260
55e6e397 2261 ret->vxworks_p = vxworks_object_p (abfd);
8e45593f 2262 ret->fdpic_p = fdpic_object_p (abfd);
067653c5 2263
37c644f2
AO
2264 return &ret->root.root;
2265}
2266
8e45593f
NC
2267static bfd_boolean
2268sh_elf_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2269 struct bfd_link_info *info, asection *p)
2270{
2271 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
2272
2273 /* Non-FDPIC binaries do not need dynamic symbols for sections. */
2274 if (!htab->fdpic_p)
2275 return TRUE;
2276
2277 /* We need dynamic symbols for every section, since segments can
2278 relocate independently. */
2279 switch (elf_section_data (p)->this_hdr.sh_type)
2280 {
2281 case SHT_PROGBITS:
2282 case SHT_NOBITS:
2283 /* If sh_type is yet undecided, assume it could be
2284 SHT_PROGBITS/SHT_NOBITS. */
2285 case SHT_NULL:
2286 return FALSE;
2287
2288 /* There shouldn't be section relative relocations
2289 against any other section. */
2290 default:
2291 return TRUE;
2292 }
2293}
2294
067653c5
AM
2295/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2296 shortcuts to them in our hash table. */
2297
b34976b6 2298static bfd_boolean
09fd220b 2299create_got_section (bfd *dynobj, struct bfd_link_info *info)
067653c5
AM
2300{
2301 struct elf_sh_link_hash_table *htab;
2302
2303 if (! _bfd_elf_create_got_section (dynobj, info))
b34976b6 2304 return FALSE;
067653c5
AM
2305
2306 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2307 if (htab == NULL)
2308 return FALSE;
2309
3d4d4302
AM
2310 htab->sfuncdesc = bfd_make_section_anyway_with_flags (dynobj, ".got.funcdesc",
2311 (SEC_ALLOC | SEC_LOAD
2312 | SEC_HAS_CONTENTS
2313 | SEC_IN_MEMORY
2314 | SEC_LINKER_CREATED));
8e45593f 2315 if (htab->sfuncdesc == NULL
fd361982 2316 || !bfd_set_section_alignment (htab->sfuncdesc, 2))
8e45593f
NC
2317 return FALSE;
2318
3d4d4302
AM
2319 htab->srelfuncdesc = bfd_make_section_anyway_with_flags (dynobj,
2320 ".rela.got.funcdesc",
2321 (SEC_ALLOC | SEC_LOAD
2322 | SEC_HAS_CONTENTS
2323 | SEC_IN_MEMORY
2324 | SEC_LINKER_CREATED
2325 | SEC_READONLY));
8e45593f 2326 if (htab->srelfuncdesc == NULL
fd361982 2327 || !bfd_set_section_alignment (htab->srelfuncdesc, 2))
8e45593f
NC
2328 return FALSE;
2329
2330 /* Also create .rofixup. */
3d4d4302
AM
2331 htab->srofixup = bfd_make_section_anyway_with_flags (dynobj, ".rofixup",
2332 (SEC_ALLOC | SEC_LOAD
2333 | SEC_HAS_CONTENTS
2334 | SEC_IN_MEMORY
2335 | SEC_LINKER_CREATED
2336 | SEC_READONLY));
8e45593f 2337 if (htab->srofixup == NULL
fd361982 2338 || !bfd_set_section_alignment (htab->srofixup, 2))
8e45593f
NC
2339 return FALSE;
2340
b34976b6 2341 return TRUE;
067653c5
AM
2342}
2343
37c644f2
AO
2344/* Create dynamic sections when linking against a dynamic object. */
2345
b34976b6 2346static bfd_boolean
09fd220b 2347sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
37c644f2 2348{
067653c5 2349 struct elf_sh_link_hash_table *htab;
37c644f2 2350 flagword flags, pltflags;
91d6fa6a 2351 asection *s;
9c5bfbb7 2352 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
37c644f2
AO
2353 int ptralign = 0;
2354
2355 switch (bed->s->arch_size)
2356 {
2357 case 32:
2358 ptralign = 2;
2359 break;
2360
2361 case 64:
2362 ptralign = 3;
2363 break;
2364
2365 default:
2366 bfd_set_error (bfd_error_bad_value);
b34976b6 2367 return FALSE;
37c644f2
AO
2368 }
2369
067653c5 2370 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2371 if (htab == NULL)
2372 return FALSE;
2373
35cad4c4
KK
2374 if (htab->root.dynamic_sections_created)
2375 return TRUE;
067653c5 2376
37c644f2
AO
2377 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2378 .rel[a].bss sections. */
2379
2380 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2381 | SEC_LINKER_CREATED);
2382
2383 pltflags = flags;
2384 pltflags |= SEC_CODE;
2385 if (bed->plt_not_loaded)
2386 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2387 if (bed->plt_readonly)
2388 pltflags |= SEC_READONLY;
2389
3d4d4302 2390 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
ce558b89 2391 htab->root.splt = s;
35cad4c4 2392 if (s == NULL
fd361982 2393 || !bfd_set_section_alignment (s, bed->plt_alignment))
35cad4c4 2394 return FALSE;
37c644f2
AO
2395
2396 if (bed->want_plt_sym)
2397 {
2398 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2399 .plt section. */
14a793b2
AM
2400 struct elf_link_hash_entry *h;
2401 struct bfd_link_hash_entry *bh = NULL;
2402
37c644f2
AO
2403 if (! (_bfd_generic_link_add_one_symbol
2404 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
b34976b6 2405 (bfd_vma) 0, (const char *) NULL, FALSE,
14a793b2 2406 get_elf_backend_data (abfd)->collect, &bh)))
b34976b6 2407 return FALSE;
14a793b2
AM
2408
2409 h = (struct elf_link_hash_entry *) bh;
f5385ebf 2410 h->def_regular = 1;
37c644f2 2411 h->type = STT_OBJECT;
7325306f 2412 htab->root.hplt = h;
37c644f2 2413
0e1862bb 2414 if (bfd_link_pic (info)
c152c796 2415 && ! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2416 return FALSE;
37c644f2
AO
2417 }
2418
3d4d4302
AM
2419 s = bfd_make_section_anyway_with_flags (abfd,
2420 bed->default_use_rela_p
2421 ? ".rela.plt" : ".rel.plt",
2422 flags | SEC_READONLY);
ce558b89 2423 htab->root.srelplt = s;
35cad4c4 2424 if (s == NULL
fd361982 2425 || !bfd_set_section_alignment (s, ptralign))
35cad4c4 2426 return FALSE;
37c644f2 2427
ce558b89 2428 if (htab->root.sgot == NULL
2293c499 2429 && !create_got_section (abfd, info))
b34976b6 2430 return FALSE;
37c644f2 2431
37c644f2
AO
2432 if (bed->want_dynbss)
2433 {
2434 /* The .dynbss section is a place to put symbols which are defined
2435 by dynamic objects, are referenced by regular objects, and are
2436 not functions. We must allocate space for them in the process
2437 image and use a R_*_COPY reloc to tell the dynamic linker to
2438 initialize them at run time. The linker script puts the .dynbss
2439 section into the .bss section of the final image. */
3d4d4302
AM
2440 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2441 SEC_ALLOC | SEC_LINKER_CREATED);
35cad4c4 2442 htab->sdynbss = s;
3496cb2a 2443 if (s == NULL)
35cad4c4 2444 return FALSE;
37c644f2
AO
2445
2446 /* The .rel[a].bss section holds copy relocs. This section is not
2447 normally needed. We need to create it here, though, so that the
2448 linker will map it to an output section. We can't just create it
2449 only if we need it, because we will not know whether we need it
2450 until we have seen all the input files, and the first time the
2451 main linker code calls BFD after examining all the input files
2452 (size_dynamic_sections) the input sections have already been
2453 mapped to the output sections. If the section turns out not to
2454 be needed, we can discard it later. We will never need this
2455 section when generating a shared object, since they do not use
2456 copy relocs. */
0e1862bb 2457 if (! bfd_link_pic (info))
37c644f2 2458 {
3d4d4302
AM
2459 s = bfd_make_section_anyway_with_flags (abfd,
2460 (bed->default_use_rela_p
2461 ? ".rela.bss" : ".rel.bss"),
2462 flags | SEC_READONLY);
067653c5 2463 htab->srelbss = s;
37c644f2 2464 if (s == NULL
fd361982 2465 || !bfd_set_section_alignment (s, ptralign))
b34976b6 2466 return FALSE;
37c644f2
AO
2467 }
2468 }
2469
55e6e397
RS
2470 if (htab->vxworks_p)
2471 {
2472 if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2473 return FALSE;
2474 }
2475
b34976b6 2476 return TRUE;
37c644f2
AO
2477}
2478\f
63c1f59d
AM
2479/* Find dynamic relocs for H that apply to read-only sections. */
2480
2481static asection *
2482readonly_dynrelocs (struct elf_link_hash_entry *h)
2483{
3bf083ed 2484 struct elf_dyn_relocs *p;
63c1f59d 2485
190eb1dd 2486 for (p = h->dyn_relocs; p != NULL; p = p->next)
63c1f59d
AM
2487 {
2488 asection *s = p->sec->output_section;
2489
2490 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2491 return p->sec;
2492 }
2493 return NULL;
2494}
2495
37c644f2
AO
2496/* Adjust a symbol defined by a dynamic object and referenced by a
2497 regular object. The current definition is in some section of the
2498 dynamic object, but we're not including those sections. We have to
2499 change the definition to something the rest of the link can
2500 understand. */
2501
b34976b6 2502static bfd_boolean
09fd220b
KK
2503sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2504 struct elf_link_hash_entry *h)
37c644f2 2505{
067653c5 2506 struct elf_sh_link_hash_table *htab;
37c644f2 2507 asection *s;
37c644f2 2508
2293c499 2509 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2510 if (htab == NULL)
2511 return FALSE;
37c644f2
AO
2512
2513 /* Make sure we know what is going on here. */
2293c499 2514 BFD_ASSERT (htab->root.dynobj != NULL
f5385ebf 2515 && (h->needs_plt
60d67dc8 2516 || h->is_weakalias
f5385ebf
AM
2517 || (h->def_dynamic
2518 && h->ref_regular
2519 && !h->def_regular)));
37c644f2
AO
2520
2521 /* If this is a function, put it in the procedure linkage table. We
2522 will fill in the contents of the procedure linkage table later,
2523 when we know the address of the .got section. */
2524 if (h->type == STT_FUNC
f5385ebf 2525 || h->needs_plt)
37c644f2 2526 {
067653c5 2527 if (h->plt.refcount <= 0
3d85aebe
KK
2528 || SYMBOL_CALLS_LOCAL (info, h)
2529 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2530 && h->root.type == bfd_link_hash_undefweak))
37c644f2
AO
2531 {
2532 /* This case can occur if we saw a PLT reloc in an input
2533 file, but the symbol was never referred to by a dynamic
2534 object. In such a case, we don't actually need to build
2535 a procedure linkage table, and we can just do a REL32
2536 reloc instead. */
067653c5 2537 h->plt.offset = (bfd_vma) -1;
f5385ebf 2538 h->needs_plt = 0;
37c644f2
AO
2539 }
2540
b34976b6 2541 return TRUE;
37c644f2 2542 }
067653c5
AM
2543 else
2544 h->plt.offset = (bfd_vma) -1;
37c644f2
AO
2545
2546 /* If this is a weak symbol, and there is a real definition, the
2547 processor independent code will have arranged for us to see the
2548 real definition first, and we can just use the same value. */
60d67dc8 2549 if (h->is_weakalias)
37c644f2 2550 {
60d67dc8
AM
2551 struct elf_link_hash_entry *def = weakdef (h);
2552 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2553 h->root.u.def.section = def->root.u.def.section;
2554 h->root.u.def.value = def->root.u.def.value;
04e534c3 2555 if (info->nocopyreloc)
60d67dc8 2556 h->non_got_ref = def->non_got_ref;
b34976b6 2557 return TRUE;
37c644f2
AO
2558 }
2559
2560 /* This is a reference to a symbol defined by a dynamic object which
2561 is not a function. */
2562
2563 /* If we are creating a shared library, we must presume that the
2564 only references to the symbol are via the global offset table.
2565 For such cases we need not do anything here; the relocations will
2566 be handled correctly by relocate_section. */
0e1862bb 2567 if (bfd_link_pic (info))
b34976b6 2568 return TRUE;
37c644f2
AO
2569
2570 /* If there are no references to this symbol that do not use the
2571 GOT, we don't need to generate a copy reloc. */
f5385ebf 2572 if (!h->non_got_ref)
b34976b6 2573 return TRUE;
37c644f2 2574
067653c5 2575 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 2576 if (0 && info->nocopyreloc)
067653c5 2577 {
f5385ebf 2578 h->non_got_ref = 0;
b34976b6 2579 return TRUE;
067653c5
AM
2580 }
2581
3bf083ed
AM
2582 /* If we don't find any dynamic relocs in read-only sections, then
2583 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2584 if (0 && !readonly_dynrelocs (h))
067653c5 2585 {
f5385ebf 2586 h->non_got_ref = 0;
b34976b6 2587 return TRUE;
067653c5
AM
2588 }
2589
37c644f2
AO
2590 /* We must allocate the symbol in our .dynbss section, which will
2591 become part of the .bss section of the executable. There will be
2592 an entry for this symbol in the .dynsym section. The dynamic
2593 object will contain position independent code, so all references
2594 from the dynamic object to this symbol will go through the global
2595 offset table. The dynamic linker will use the .dynsym entry to
2596 determine the address it must put in the global offset table, so
2597 both the dynamic object and the regular object will refer to the
2598 same memory location for the variable. */
2599
067653c5 2600 s = htab->sdynbss;
37c644f2
AO
2601 BFD_ASSERT (s != NULL);
2602
2603 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2604 copy the initial value out of the dynamic object and into the
2605 runtime process image. We need to remember the offset into the
2606 .rela.bss section we are going to use. */
1d7e9d18 2607 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
37c644f2
AO
2608 {
2609 asection *srel;
2610
067653c5 2611 srel = htab->srelbss;
37c644f2 2612 BFD_ASSERT (srel != NULL);
eea6121a 2613 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 2614 h->needs_copy = 1;
37c644f2
AO
2615 }
2616
6cabe1ea 2617 return _bfd_elf_adjust_dynamic_copy (info, h, s);
37c644f2
AO
2618}
2619
067653c5
AM
2620/* Allocate space in .plt, .got and associated reloc sections for
2621 dynamic relocs. */
2622
b34976b6 2623static bfd_boolean
09fd220b 2624allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
067653c5
AM
2625{
2626 struct bfd_link_info *info;
2627 struct elf_sh_link_hash_table *htab;
2628 struct elf_sh_link_hash_entry *eh;
3bf083ed 2629 struct elf_dyn_relocs *p;
067653c5
AM
2630
2631 if (h->root.type == bfd_link_hash_indirect)
b34976b6 2632 return TRUE;
067653c5 2633
067653c5
AM
2634 info = (struct bfd_link_info *) inf;
2635 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2636 if (htab == NULL)
2637 return FALSE;
067653c5 2638
4989d792
SC
2639 eh = (struct elf_sh_link_hash_entry *) h;
2640 if ((h->got.refcount > 0
f5385ebf 2641 || h->forced_local)
4989d792
SC
2642 && eh->gotplt_refcount > 0)
2643 {
2644 /* The symbol has been forced local, or we have some direct got refs,
26e41594 2645 so treat all the gotplt refs as got refs. */
4989d792
SC
2646 h->got.refcount += eh->gotplt_refcount;
2647 if (h->plt.refcount >= eh->gotplt_refcount)
2648 h->plt.refcount -= eh->gotplt_refcount;
2649 }
2650
067653c5 2651 if (htab->root.dynamic_sections_created
04e534c3
KK
2652 && h->plt.refcount > 0
2653 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2654 || h->root.type != bfd_link_hash_undefweak))
067653c5
AM
2655 {
2656 /* Make sure this symbol is output as a dynamic symbol.
2657 Undefined weak syms won't yet be marked as dynamic. */
2658 if (h->dynindx == -1
f5385ebf 2659 && !h->forced_local)
067653c5 2660 {
c152c796 2661 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2662 return FALSE;
067653c5
AM
2663 }
2664
0e1862bb 2665 if (bfd_link_pic (info)
267fb3c1 2666 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
067653c5 2667 {
ce558b89 2668 asection *s = htab->root.splt;
8e45593f 2669 const struct elf_sh_plt_info *plt_info;
067653c5
AM
2670
2671 /* If this is the first .plt entry, make room for the special
2672 first entry. */
eea6121a 2673 if (s->size == 0)
55e6e397 2674 s->size += htab->plt_info->plt0_entry_size;
067653c5 2675
eea6121a 2676 h->plt.offset = s->size;
067653c5
AM
2677
2678 /* If this symbol is not defined in a regular file, and we are
2679 not generating a shared library, then set the symbol to this
2680 location in the .plt. This is required to make function
2681 pointers compare as equal between the normal executable and
8e45593f
NC
2682 the shared library. Skip this for FDPIC, since the
2683 function's address will be the address of the canonical
2684 function descriptor. */
0e1862bb 2685 if (!htab->fdpic_p && !bfd_link_pic (info) && !h->def_regular)
067653c5
AM
2686 {
2687 h->root.u.def.section = s;
2688 h->root.u.def.value = h->plt.offset;
2689 }
2690
2691 /* Make room for this entry. */
8e45593f
NC
2692 plt_info = htab->plt_info;
2693 if (plt_info->short_plt != NULL
2694 && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT))
2695 plt_info = plt_info->short_plt;
2696 s->size += plt_info->symbol_entry_size;
067653c5
AM
2697
2698 /* We also need to make an entry in the .got.plt section, which
2699 will be placed in the .got section by the linker script. */
8e45593f 2700 if (!htab->fdpic_p)
ce558b89 2701 htab->root.sgotplt->size += 4;
8e45593f 2702 else
ce558b89 2703 htab->root.sgotplt->size += 8;
067653c5
AM
2704
2705 /* We also need to make an entry in the .rel.plt section. */
ce558b89 2706 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
55e6e397 2707
0e1862bb 2708 if (htab->vxworks_p && !bfd_link_pic (info))
55e6e397
RS
2709 {
2710 /* VxWorks executables have a second set of relocations
2711 for each PLT entry. They go in a separate relocation
2712 section, which is processed by the kernel loader. */
2713
2714 /* There is a relocation for the initial PLT entry:
2715 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
2716 if (h->plt.offset == htab->plt_info->plt0_entry_size)
2717 htab->srelplt2->size += sizeof (Elf32_External_Rela);
2718
2719 /* There are two extra relocations for each subsequent
2720 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
2721 and an R_SH_DIR32 relocation for the PLT entry. */
2722 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2;
2723 }
067653c5
AM
2724 }
2725 else
2726 {
2727 h->plt.offset = (bfd_vma) -1;
f5385ebf 2728 h->needs_plt = 0;
067653c5
AM
2729 }
2730 }
2731 else
2732 {
2733 h->plt.offset = (bfd_vma) -1;
f5385ebf 2734 h->needs_plt = 0;
067653c5
AM
2735 }
2736
2737 if (h->got.refcount > 0)
2738 {
2739 asection *s;
b34976b6 2740 bfd_boolean dyn;
85e02784 2741 enum got_type got_type = sh_elf_hash_entry (h)->got_type;
067653c5
AM
2742
2743 /* Make sure this symbol is output as a dynamic symbol.
2744 Undefined weak syms won't yet be marked as dynamic. */
2745 if (h->dynindx == -1
f5385ebf 2746 && !h->forced_local)
067653c5 2747 {
c152c796 2748 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2749 return FALSE;
067653c5
AM
2750 }
2751
ce558b89 2752 s = htab->root.sgot;
eea6121a
AM
2753 h->got.offset = s->size;
2754 s->size += 4;
3376eaf5 2755 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
8e45593f 2756 if (got_type == GOT_TLS_GD)
eea6121a 2757 s->size += 4;
067653c5 2758 dyn = htab->root.dynamic_sections_created;
8e45593f
NC
2759 if (!dyn)
2760 {
2761 /* No dynamic relocations required. */
0e1862bb 2762 if (htab->fdpic_p && !bfd_link_pic (info)
8e45593f
NC
2763 && h->root.type != bfd_link_hash_undefweak
2764 && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC))
2765 htab->srofixup->size += 4;
2766 }
87458ed2 2767 /* No dynamic relocations required when IE->LE conversion happens. */
0e1862bb
L
2768 else if (got_type == GOT_TLS_IE
2769 && !h->def_dynamic
2770 && !bfd_link_pic (info))
87458ed2 2771 ;
267fb3c1 2772 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
3376eaf5 2773 R_SH_TLS_GD needs one if local symbol and two if global. */
8e45593f
NC
2774 else if ((got_type == GOT_TLS_GD && h->dynindx == -1)
2775 || got_type == GOT_TLS_IE)
ce558b89 2776 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f 2777 else if (got_type == GOT_TLS_GD)
ce558b89 2778 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
8e45593f
NC
2779 else if (got_type == GOT_FUNCDESC)
2780 {
0e1862bb 2781 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
2782 htab->srofixup->size += 4;
2783 else
ce558b89 2784 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f 2785 }
04e534c3
KK
2786 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2787 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 2788 && (bfd_link_pic (info)
04e534c3 2789 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
ce558b89 2790 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
0e1862bb
L
2791 else if (htab->fdpic_p
2792 && !bfd_link_pic (info)
2793 && got_type == GOT_NORMAL
8e45593f
NC
2794 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2795 || h->root.type != bfd_link_hash_undefweak))
2796 htab->srofixup->size += 4;
067653c5
AM
2797 }
2798 else
2799 h->got.offset = (bfd_vma) -1;
2800
8e45593f
NC
2801 /* Allocate space for any dynamic relocations to function
2802 descriptors, canonical or otherwise. We need to relocate the
2803 reference unless it resolves to zero, which only happens for
2804 undefined weak symbols (either non-default visibility, or when
2805 static linking). Any GOT slot is accounted for elsewhere. */
2806 if (eh->abs_funcdesc_refcount > 0
2807 && (h->root.type != bfd_link_hash_undefweak
2808 || (htab->root.dynamic_sections_created
2809 && ! SYMBOL_CALLS_LOCAL (info, h))))
2810 {
0e1862bb 2811 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
2812 htab->srofixup->size += eh->abs_funcdesc_refcount * 4;
2813 else
ce558b89 2814 htab->root.srelgot->size
8e45593f
NC
2815 += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela);
2816 }
2817
2818 /* We must allocate a function descriptor if there are references to
2819 a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
2820 the dynamic linker isn't going to allocate it. None of this
2821 applies if we already created one in .got.plt, but if the
2822 canonical function descriptor can be in this object, there
2823 won't be a PLT entry at all. */
2824 if ((eh->funcdesc.refcount > 0
2825 || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC))
2826 && h->root.type != bfd_link_hash_undefweak
2827 && SYMBOL_FUNCDESC_LOCAL (info, h))
2828 {
2829 /* Make room for this function descriptor. */
2830 eh->funcdesc.offset = htab->sfuncdesc->size;
2831 htab->sfuncdesc->size += 8;
2832
2833 /* We will need a relocation or two fixups to initialize the
2834 function descriptor, so allocate those too. */
0e1862bb 2835 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
8e45593f
NC
2836 htab->srofixup->size += 8;
2837 else
2838 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
2839 }
2840
190eb1dd 2841 if (h->dyn_relocs == NULL)
b34976b6 2842 return TRUE;
067653c5
AM
2843
2844 /* In the shared -Bsymbolic case, discard space allocated for
2845 dynamic pc-relative relocs against symbols which turn out to be
2846 defined in regular objects. For the normal shared case, discard
2847 space for pc-relative relocs that have become local due to symbol
2848 visibility changes. */
2849
0e1862bb 2850 if (bfd_link_pic (info))
067653c5 2851 {
3d85aebe 2852 if (SYMBOL_CALLS_LOCAL (info, h))
067653c5 2853 {
3bf083ed 2854 struct elf_dyn_relocs **pp;
067653c5 2855
190eb1dd 2856 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
067653c5
AM
2857 {
2858 p->count -= p->pc_count;
2859 p->pc_count = 0;
2860 if (p->count == 0)
2861 *pp = p->next;
2862 else
2863 pp = &p->next;
2864 }
2865 }
04e534c3 2866
3348747a
NS
2867 if (htab->vxworks_p)
2868 {
3bf083ed 2869 struct elf_dyn_relocs **pp;
3348747a 2870
190eb1dd 2871 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
3348747a
NS
2872 {
2873 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2874 *pp = p->next;
2875 else
2876 pp = &p->next;
2877 }
2878 }
2879
04e534c3
KK
2880 /* Also discard relocs on undefined weak syms with non-default
2881 visibility. */
190eb1dd 2882 if (h->dyn_relocs != NULL
04e534c3 2883 && h->root.type == bfd_link_hash_undefweak)
22d606e9 2884 {
6ee6e05a
L
2885 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2886 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
190eb1dd 2887 h->dyn_relocs = NULL;
22d606e9
AM
2888
2889 /* Make sure undefined weak symbols are output as a dynamic
2890 symbol in PIEs. */
2891 else if (h->dynindx == -1
2892 && !h->forced_local)
2893 {
2894 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2895 return FALSE;
2896 }
2897 }
067653c5
AM
2898 }
2899 else
2900 {
2901 /* For the non-shared case, discard space for relocs against
2902 symbols which turn out to need copy relocs or are not
2903 dynamic. */
2904
f5385ebf
AM
2905 if (!h->non_got_ref
2906 && ((h->def_dynamic
2907 && !h->def_regular)
067653c5
AM
2908 || (htab->root.dynamic_sections_created
2909 && (h->root.type == bfd_link_hash_undefweak
2910 || h->root.type == bfd_link_hash_undefined))))
2911 {
2912 /* Make sure this symbol is output as a dynamic symbol.
2913 Undefined weak syms won't yet be marked as dynamic. */
2914 if (h->dynindx == -1
f5385ebf 2915 && !h->forced_local)
067653c5 2916 {
c152c796 2917 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2918 return FALSE;
067653c5
AM
2919 }
2920
2921 /* If that succeeded, we know we'll be keeping all the
2922 relocs. */
2923 if (h->dynindx != -1)
2924 goto keep;
2925 }
2926
190eb1dd 2927 h->dyn_relocs = NULL;
067653c5
AM
2928
2929 keep: ;
2930 }
2931
2932 /* Finally, allocate space. */
190eb1dd 2933 for (p = h->dyn_relocs; p != NULL; p = p->next)
067653c5
AM
2934 {
2935 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2936 sreloc->size += p->count * sizeof (Elf32_External_Rela);
8e45593f
NC
2937
2938 /* If we need relocations, we do not need fixups. */
0e1862bb 2939 if (htab->fdpic_p && !bfd_link_pic (info))
8e45593f 2940 htab->srofixup->size -= 4 * (p->count - p->pc_count);
067653c5
AM
2941 }
2942
b34976b6 2943 return TRUE;
067653c5
AM
2944}
2945
63c1f59d
AM
2946/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2947 read-only sections. */
067653c5 2948
b34976b6 2949static bfd_boolean
63c1f59d 2950maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
067653c5 2951{
63c1f59d 2952 asection *sec;
067653c5 2953
63c1f59d
AM
2954 if (h->root.type == bfd_link_hash_indirect)
2955 return TRUE;
067653c5 2956
63c1f59d
AM
2957 sec = readonly_dynrelocs (h);
2958 if (sec != NULL)
2959 {
2960 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
067653c5 2961
63c1f59d
AM
2962 info->flags |= DF_TEXTREL;
2963 info->callbacks->minfo
c1c8c1ef 2964 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 2965 sec->owner, h->root.root.string, sec);
a72f95f7 2966
63c1f59d
AM
2967 /* Not an error, just cut short the traversal. */
2968 return FALSE;
067653c5 2969 }
b34976b6 2970 return TRUE;
067653c5
AM
2971}
2972
55e6e397
RS
2973/* This function is called after all the input files have been read,
2974 and the input sections have been assigned to output sections.
2975 It's a convenient place to determine the PLT style. */
2976
2977static bfd_boolean
2978sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2979{
0e1862bb
L
2980 sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd,
2981 bfd_link_pic (info));
8e45593f 2982
0e1862bb 2983 if (sh_elf_hash_table (info)->fdpic_p && !bfd_link_relocatable (info)
04c3a755
NS
2984 && !bfd_elf_stack_segment_size (output_bfd, info,
2985 "__stacksize", DEFAULT_STACK_SIZE))
2986 return FALSE;
55e6e397
RS
2987 return TRUE;
2988}
2989
37c644f2
AO
2990/* Set the sizes of the dynamic sections. */
2991
b34976b6 2992static bfd_boolean
09fd220b
KK
2993sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2994 struct bfd_link_info *info)
37c644f2 2995{
067653c5 2996 struct elf_sh_link_hash_table *htab;
37c644f2
AO
2997 bfd *dynobj;
2998 asection *s;
b34976b6 2999 bfd_boolean relocs;
067653c5 3000 bfd *ibfd;
37c644f2 3001
067653c5 3002 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
3003 if (htab == NULL)
3004 return FALSE;
3005
067653c5 3006 dynobj = htab->root.dynobj;
37c644f2
AO
3007 BFD_ASSERT (dynobj != NULL);
3008
067653c5 3009 if (htab->root.dynamic_sections_created)
37c644f2
AO
3010 {
3011 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 3012 if (bfd_link_executable (info) && !info->nointerp)
37c644f2 3013 {
3d4d4302 3014 s = bfd_get_linker_section (dynobj, ".interp");
37c644f2 3015 BFD_ASSERT (s != NULL);
eea6121a 3016 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
37c644f2
AO
3017 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3018 }
3019 }
37c644f2 3020
067653c5
AM
3021 /* Set up .got offsets for local syms, and space for local dynamic
3022 relocs. */
c72f2fb2 3023 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
37c644f2 3024 {
067653c5
AM
3025 bfd_signed_vma *local_got;
3026 bfd_signed_vma *end_local_got;
8e45593f
NC
3027 union gotref *local_funcdesc, *end_local_funcdesc;
3028 char *local_got_type;
067653c5
AM
3029 bfd_size_type locsymcount;
3030 Elf_Internal_Shdr *symtab_hdr;
3031 asection *srel;
37c644f2 3032
0ffa91dd 3033 if (! is_sh_elf (ibfd))
37c644f2
AO
3034 continue;
3035
067653c5 3036 for (s = ibfd->sections; s != NULL; s = s->next)
37c644f2 3037 {
3bf083ed 3038 struct elf_dyn_relocs *p;
067653c5 3039
3bf083ed 3040 for (p = ((struct elf_dyn_relocs *)
067653c5
AM
3041 elf_section_data (s)->local_dynrel);
3042 p != NULL;
3043 p = p->next)
37c644f2 3044 {
067653c5
AM
3045 if (! bfd_is_abs_section (p->sec)
3046 && bfd_is_abs_section (p->sec->output_section))
3047 {
3048 /* Input section has been discarded, either because
3049 it is a copy of a linkonce section or due to
3050 linker script /DISCARD/, so we'll be discarding
3051 the relocs too. */
3052 }
3348747a
NS
3053 else if (htab->vxworks_p
3054 && strcmp (p->sec->output_section->name,
3055 ".tls_vars") == 0)
3056 {
3057 /* Relocations in vxworks .tls_vars sections are
3058 handled specially by the loader. */
3059 }
067653c5
AM
3060 else if (p->count != 0)
3061 {
3062 srel = elf_section_data (p->sec)->sreloc;
eea6121a 3063 srel->size += p->count * sizeof (Elf32_External_Rela);
067653c5 3064 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
a72f95f7
L
3065 {
3066 info->flags |= DF_TEXTREL;
871b3ab2 3067 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
a72f95f7
L
3068 p->sec->owner, p->sec);
3069 }
8e45593f
NC
3070
3071 /* If we need relocations, we do not need fixups. */
0e1862bb 3072 if (htab->fdpic_p && !bfd_link_pic (info))
8e45593f 3073 htab->srofixup->size -= 4 * (p->count - p->pc_count);
067653c5 3074 }
37c644f2
AO
3075 }
3076 }
067653c5 3077
0ffa91dd 3078 symtab_hdr = &elf_symtab_hdr (ibfd);
067653c5 3079 locsymcount = symtab_hdr->sh_info;
ce558b89
AM
3080 s = htab->root.sgot;
3081 srel = htab->root.srelgot;
8e45593f
NC
3082
3083 local_got = elf_local_got_refcounts (ibfd);
3084 if (local_got)
37c644f2 3085 {
8e45593f
NC
3086 end_local_got = local_got + locsymcount;
3087 local_got_type = sh_elf_local_got_type (ibfd);
3088 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3089 for (; local_got < end_local_got; ++local_got)
37c644f2 3090 {
8e45593f
NC
3091 if (*local_got > 0)
3092 {
3093 *local_got = s->size;
3094 s->size += 4;
3095 if (*local_got_type == GOT_TLS_GD)
3096 s->size += 4;
0e1862bb 3097 if (bfd_link_pic (info))
8e45593f
NC
3098 srel->size += sizeof (Elf32_External_Rela);
3099 else
3100 htab->srofixup->size += 4;
3101
3102 if (*local_got_type == GOT_FUNCDESC)
3103 {
3104 if (local_funcdesc == NULL)
3105 {
3106 bfd_size_type size;
3107
3108 size = locsymcount * sizeof (union gotref);
3109 local_funcdesc = (union gotref *) bfd_zalloc (ibfd,
3110 size);
3111 if (local_funcdesc == NULL)
3112 return FALSE;
3113 sh_elf_local_funcdesc (ibfd) = local_funcdesc;
3114 local_funcdesc += (local_got
3115 - elf_local_got_refcounts (ibfd));
3116 }
3117 local_funcdesc->refcount++;
3118 ++local_funcdesc;
3119 }
3120 }
3121 else
3122 *local_got = (bfd_vma) -1;
3123 ++local_got_type;
3124 }
3125 }
3126
3127 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3128 if (local_funcdesc)
3129 {
3130 end_local_funcdesc = local_funcdesc + locsymcount;
3131
3132 for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc)
3133 {
3134 if (local_funcdesc->refcount > 0)
3135 {
3136 local_funcdesc->offset = htab->sfuncdesc->size;
3137 htab->sfuncdesc->size += 8;
0e1862bb 3138 if (!bfd_link_pic (info))
8e45593f
NC
3139 htab->srofixup->size += 8;
3140 else
3141 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
3142 }
3143 else
3144 local_funcdesc->offset = MINUS_ONE;
37c644f2 3145 }
37c644f2 3146 }
8e45593f 3147
067653c5
AM
3148 }
3149
3376eaf5
KK
3150 if (htab->tls_ldm_got.refcount > 0)
3151 {
3152 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3153 relocs. */
ce558b89
AM
3154 htab->tls_ldm_got.offset = htab->root.sgot->size;
3155 htab->root.sgot->size += 8;
3156 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
3376eaf5
KK
3157 }
3158 else
3159 htab->tls_ldm_got.offset = -1;
3160
8e45593f
NC
3161 /* Only the reserved entries should be present. For FDPIC, they go at
3162 the end of .got.plt. */
3163 if (htab->fdpic_p)
3164 {
ce558b89
AM
3165 BFD_ASSERT (htab->root.sgotplt && htab->root.sgotplt->size == 12);
3166 htab->root.sgotplt->size = 0;
8e45593f
NC
3167 }
3168
067653c5
AM
3169 /* Allocate global sym .plt and .got entries, and space for global
3170 sym dynamic relocs. */
09fd220b 3171 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
067653c5 3172
8e45593f
NC
3173 /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3174 end of the FDPIC .got.plt. */
3175 if (htab->fdpic_p)
3176 {
ce558b89
AM
3177 htab->root.hgot->root.u.def.value = htab->root.sgotplt->size;
3178 htab->root.sgotplt->size += 12;
8e45593f
NC
3179 }
3180
3181 /* At the very end of the .rofixup section is a pointer to the GOT. */
3182 if (htab->fdpic_p && htab->srofixup != NULL)
3183 htab->srofixup->size += 4;
3184
067653c5
AM
3185 /* We now have determined the sizes of the various dynamic sections.
3186 Allocate memory for them. */
b34976b6 3187 relocs = FALSE;
067653c5
AM
3188 for (s = dynobj->sections; s != NULL; s = s->next)
3189 {
3190 if ((s->flags & SEC_LINKER_CREATED) == 0)
3191 continue;
3192
ce558b89
AM
3193 if (s == htab->root.splt
3194 || s == htab->root.sgot
3195 || s == htab->root.sgotplt
8e45593f
NC
3196 || s == htab->sfuncdesc
3197 || s == htab->srofixup
c456f082 3198 || s == htab->sdynbss)
067653c5
AM
3199 {
3200 /* Strip this section if we don't need it; see the
3201 comment below. */
3202 }
fd361982 3203 else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
067653c5 3204 {
ce558b89 3205 if (s->size != 0 && s != htab->root.srelplt && s != htab->srelplt2)
b34976b6 3206 relocs = TRUE;
067653c5
AM
3207
3208 /* We use the reloc_count field as a counter if we need
3209 to copy relocs into the output file. */
3210 s->reloc_count = 0;
3211 }
3212 else
37c644f2
AO
3213 {
3214 /* It's not one of our sections, so don't allocate space. */
3215 continue;
3216 }
3217
eea6121a 3218 if (s->size == 0)
37c644f2 3219 {
067653c5
AM
3220 /* If we don't need this section, strip it from the
3221 output file. This is mostly to handle .rela.bss and
3222 .rela.plt. We must create both sections in
3223 create_dynamic_sections, because they must be created
3224 before the linker maps input sections to output
3225 sections. The linker does that before
3226 adjust_dynamic_symbol is called, and it is that
3227 function which decides whether anything needs to go
3228 into these sections. */
3229
8423293d 3230 s->flags |= SEC_EXCLUDE;
37c644f2
AO
3231 continue;
3232 }
3233
c456f082
AM
3234 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3235 continue;
3236
067653c5
AM
3237 /* Allocate memory for the section contents. We use bfd_zalloc
3238 here in case unused entries are not reclaimed before the
3239 section's contents are written out. This should not happen,
3240 but this way if it does, we get a R_SH_NONE reloc instead
3241 of garbage. */
eea6121a 3242 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
067653c5 3243 if (s->contents == NULL)
b34976b6 3244 return FALSE;
37c644f2
AO
3245 }
3246
067653c5 3247 if (htab->root.dynamic_sections_created)
37c644f2
AO
3248 {
3249 /* Add some entries to the .dynamic section. We fill in the
3250 values later, in sh_elf_finish_dynamic_sections, but we
3251 must add the entries now so that we get the correct size for
3252 the .dynamic section. The DT_DEBUG entry is filled in by the
3253 dynamic linker and used by the debugger. */
dc810e39 3254#define add_dynamic_entry(TAG, VAL) \
5a580b3a 3255 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 3256
0e1862bb 3257 if (bfd_link_executable (info))
37c644f2 3258 {
067653c5 3259 if (! add_dynamic_entry (DT_DEBUG, 0))
b34976b6 3260 return FALSE;
37c644f2
AO
3261 }
3262
ce558b89 3263 if (htab->root.splt->size != 0)
37c644f2 3264 {
067653c5
AM
3265 if (! add_dynamic_entry (DT_PLTGOT, 0)
3266 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
3267 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
3268 || ! add_dynamic_entry (DT_JMPREL, 0))
b34976b6 3269 return FALSE;
37c644f2 3270 }
b4b0e149 3271 else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC))
8e45593f
NC
3272 {
3273 if (! add_dynamic_entry (DT_PLTGOT, 0))
3274 return FALSE;
3275 }
37c644f2
AO
3276
3277 if (relocs)
3278 {
067653c5
AM
3279 if (! add_dynamic_entry (DT_RELA, 0)
3280 || ! add_dynamic_entry (DT_RELASZ, 0)
3281 || ! add_dynamic_entry (DT_RELAENT,
3282 sizeof (Elf32_External_Rela)))
b34976b6 3283 return FALSE;
37c644f2 3284
067653c5
AM
3285 /* If any dynamic relocs apply to a read-only section,
3286 then we need a DT_TEXTREL entry. */
3287 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 3288 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
067653c5
AM
3289
3290 if ((info->flags & DF_TEXTREL) != 0)
3291 {
3292 if (! add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 3293 return FALSE;
067653c5 3294 }
37c644f2 3295 }
7a2b07ff
NS
3296 if (htab->vxworks_p
3297 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
3298 return FALSE;
37c644f2 3299 }
dc810e39 3300#undef add_dynamic_entry
37c644f2 3301
b34976b6 3302 return TRUE;
37c644f2 3303}
37c644f2 3304\f
8e45593f 3305/* Add a dynamic relocation to the SRELOC section. */
37c644f2 3306
8e45593f
NC
3307inline static bfd_vma
3308sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
3309 int reloc_type, long dynindx, bfd_vma addend)
37c644f2 3310{
8e45593f
NC
3311 Elf_Internal_Rela outrel;
3312 bfd_vma reloc_offset;
37c644f2 3313
8e45593f
NC
3314 outrel.r_offset = offset;
3315 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
3316 outrel.r_addend = addend;
0ffa91dd 3317
8e45593f
NC
3318 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela);
3319 BFD_ASSERT (reloc_offset < sreloc->size);
3320 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
3321 sreloc->contents + reloc_offset);
3322 sreloc->reloc_count++;
37c644f2 3323
8e45593f
NC
3324 return reloc_offset;
3325}
37c644f2 3326
8e45593f 3327/* Add an FDPIC read-only fixup. */
37c644f2 3328
8e45593f
NC
3329inline static void
3330sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset)
3331{
3332 bfd_vma fixup_offset;
3333
3334 fixup_offset = srofixup->reloc_count++ * 4;
3335 BFD_ASSERT (fixup_offset < srofixup->size);
3336 bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset);
3337}
3338
3339/* Return the offset of the generated .got section from the
3340 _GLOBAL_OFFSET_TABLE_ symbol. */
3341
3342static bfd_signed_vma
3343sh_elf_got_offset (struct elf_sh_link_hash_table *htab)
3344{
ce558b89 3345 return (htab->root.sgot->output_offset - htab->root.sgotplt->output_offset
8e45593f
NC
3346 - htab->root.hgot->root.u.def.value);
3347}
3348
3349/* Find the segment number in which OSEC, and output section, is
3350 located. */
3351
3352static unsigned
3353sh_elf_osec_to_segment (bfd *output_bfd, asection *osec)
3354{
3d301fdc
AM
3355 Elf_Internal_Phdr *p = NULL;
3356
5bc8cb6f
NC
3357 if (output_bfd->xvec->flavour == bfd_target_elf_flavour
3358 /* PR ld/17110: Do not look for output segments in an input bfd. */
3359 && output_bfd->direction != read_direction)
3d301fdc 3360 p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
8e45593f
NC
3361
3362 /* FIXME: Nothing ever says what this index is relative to. The kernel
3363 supplies data in terms of the number of load segments but this is
3364 a phdr index and the first phdr may not be a load segment. */
3365 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
3366}
3367
3368static bfd_boolean
3369sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec)
3370{
3371 unsigned seg = sh_elf_osec_to_segment (output_bfd, osec);
3372
3d301fdc
AM
3373 return (seg != (unsigned) -1
3374 && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W));
8e45593f
NC
3375}
3376
3377/* Generate the initial contents of a local function descriptor, along
3378 with any relocations or fixups required. */
3379static bfd_boolean
3380sh_elf_initialize_funcdesc (bfd *output_bfd,
3381 struct bfd_link_info *info,
3382 struct elf_link_hash_entry *h,
3383 bfd_vma offset,
3384 asection *section,
3385 bfd_vma value)
3386{
3387 struct elf_sh_link_hash_table *htab;
3388 int dynindx;
3389 bfd_vma addr, seg;
3390
3391 htab = sh_elf_hash_table (info);
3392
3393 /* FIXME: The ABI says that the offset to the function goes in the
3394 descriptor, along with the segment index. We're RELA, so it could
3395 go in the reloc instead... */
3396
3397 if (h != NULL && SYMBOL_CALLS_LOCAL (info, h))
3398 {
3399 section = h->root.u.def.section;
3400 value = h->root.u.def.value;
3401 }
3402
3403 if (h == NULL || SYMBOL_CALLS_LOCAL (info, h))
3404 {
3405 dynindx = elf_section_data (section->output_section)->dynindx;
3406 addr = value + section->output_offset;
3407 seg = sh_elf_osec_to_segment (output_bfd, section->output_section);
3408 }
3409 else
3410 {
3411 BFD_ASSERT (h->dynindx != -1);
3412 dynindx = h->dynindx;
3413 addr = seg = 0;
3414 }
3415
0e1862bb 3416 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
8e45593f
NC
3417 {
3418 if (h == NULL || h->root.type != bfd_link_hash_undefweak)
3419 {
3420 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3421 offset
3422 + htab->sfuncdesc->output_section->vma
3423 + htab->sfuncdesc->output_offset);
3424 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3425 offset + 4
3426 + htab->sfuncdesc->output_section->vma
3427 + htab->sfuncdesc->output_offset);
3428 }
3429
3430 /* There are no dynamic relocations so fill in the final
3431 address and gp value (barring fixups). */
3432 addr += section->output_section->vma;
3433 seg = htab->root.hgot->root.u.def.value
3434 + htab->root.hgot->root.u.def.section->output_section->vma
3435 + htab->root.hgot->root.u.def.section->output_offset;
3436 }
3437 else
3438 sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc,
3439 offset
3440 + htab->sfuncdesc->output_section->vma
3441 + htab->sfuncdesc->output_offset,
3442 R_SH_FUNCDESC_VALUE, dynindx, 0);
3443
3444 bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset);
3445 bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4);
3446
3447 return TRUE;
3448}
3449
3450/* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3451 VALUE is the field's value. Return bfd_reloc_ok if successful or an error
3452 otherwise. */
3453
3454static bfd_reloc_status_type
3455install_movi20_field (bfd *output_bfd, unsigned long relocation,
3456 bfd *input_bfd, asection *input_section,
3457 bfd_byte *contents, bfd_vma offset)
3458{
3459 unsigned long cur_val;
3460 bfd_byte *addr;
3461 bfd_reloc_status_type r;
3462
3463 if (offset > bfd_get_section_limit (input_bfd, input_section))
3464 return bfd_reloc_outofrange;
3465
3466 r = bfd_check_overflow (complain_overflow_signed, 20, 0,
3467 bfd_arch_bits_per_address (input_bfd), relocation);
3468 if (r != bfd_reloc_ok)
3469 return r;
3470
3471 addr = contents + offset;
3472 cur_val = bfd_get_16 (output_bfd, addr);
3473 bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr);
3474 bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2);
3475
3476 return bfd_reloc_ok;
3477}
3478
3479/* Relocate an SH ELF section. */
3480
3481static bfd_boolean
3482sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3483 bfd *input_bfd, asection *input_section,
3484 bfd_byte *contents, Elf_Internal_Rela *relocs,
3485 Elf_Internal_Sym *local_syms,
3486 asection **local_sections)
3487{
3488 struct elf_sh_link_hash_table *htab;
3489 Elf_Internal_Shdr *symtab_hdr;
3490 struct elf_link_hash_entry **sym_hashes;
3491 Elf_Internal_Rela *rel, *relend;
8e45593f 3492 bfd_vma *local_got_offsets;
e0af1f53
MR
3493 asection *sgot = NULL;
3494 asection *sgotplt = NULL;
3495 asection *splt = NULL;
3496 asection *sreloc = NULL;
3497 asection *srelgot = NULL;
8e45593f
NC
3498 bfd_boolean is_vxworks_tls;
3499 unsigned isec_segment, got_segment, plt_segment, check_segment[2];
e0af1f53 3500 bfd_boolean fdpic_p = FALSE;
8e45593f 3501
7af5d5c4
AM
3502 if (!is_sh_elf (input_bfd))
3503 {
3504 bfd_set_error (bfd_error_wrong_format);
3505 return FALSE;
3506 }
8e45593f
NC
3507
3508 htab = sh_elf_hash_table (info);
e0af1f53
MR
3509 if (htab != NULL)
3510 {
ce558b89
AM
3511 sgot = htab->root.sgot;
3512 sgotplt = htab->root.sgotplt;
3513 srelgot = htab->root.srelgot;
3514 splt = htab->root.splt;
e0af1f53
MR
3515 fdpic_p = htab->fdpic_p;
3516 }
8e45593f
NC
3517 symtab_hdr = &elf_symtab_hdr (input_bfd);
3518 sym_hashes = elf_sym_hashes (input_bfd);
8e45593f
NC
3519 local_got_offsets = elf_local_got_offsets (input_bfd);
3520
3521 isec_segment = sh_elf_osec_to_segment (output_bfd,
3522 input_section->output_section);
e0af1f53 3523 if (fdpic_p && sgot)
8e45593f 3524 got_segment = sh_elf_osec_to_segment (output_bfd,
e0af1f53 3525 sgot->output_section);
8e45593f
NC
3526 else
3527 got_segment = -1;
e0af1f53 3528 if (fdpic_p && splt)
8e45593f 3529 plt_segment = sh_elf_osec_to_segment (output_bfd,
e0af1f53 3530 splt->output_section);
8e45593f
NC
3531 else
3532 plt_segment = -1;
3533
8e45593f
NC
3534 /* We have to handle relocations in vxworks .tls_vars sections
3535 specially, because the dynamic loader is 'weird'. */
0e1862bb 3536 is_vxworks_tls = (htab && htab->vxworks_p && bfd_link_pic (info)
8e45593f
NC
3537 && !strcmp (input_section->output_section->name,
3538 ".tls_vars"));
3539
3540 rel = relocs;
3541 relend = relocs + input_section->reloc_count;
3542 for (; rel < relend; rel++)
3543 {
3544 int r_type;
3545 reloc_howto_type *howto;
3546 unsigned long r_symndx;
3547 Elf_Internal_Sym *sym;
3548 asection *sec;
3549 struct elf_link_hash_entry *h;
3550 bfd_vma relocation;
3551 bfd_vma addend = (bfd_vma) 0;
3552 bfd_reloc_status_type r;
8e45593f 3553 bfd_vma off;
85e02784 3554 enum got_type got_type;
8e45593f 3555 const char *symname = NULL;
6ee6e05a 3556 bfd_boolean resolved_to_zero;
8e45593f
NC
3557
3558 r_symndx = ELF32_R_SYM (rel->r_info);
37c644f2 3559
37c644f2
AO
3560 r_type = ELF32_R_TYPE (rel->r_info);
3561
3562 /* Many of the relocs are only used for relaxing, and are
067653c5 3563 handled entirely by the relaxation code. */
d38eb334
DD
3564 if (r_type >= (int) R_SH_GNU_VTINHERIT
3565 && r_type <= (int) R_SH_LABEL)
37c644f2 3566 continue;
c5aeb40f
AO
3567 if (r_type == (int) R_SH_NONE)
3568 continue;
37c644f2
AO
3569
3570 if (r_type < 0
3571 || r_type >= R_SH_max
3572 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
06bb75c1 3573 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
8e45593f
NC
3574 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
3575 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
fbca6ad9
AO
3576 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
3577 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
3578 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
3579 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
3376eaf5
KK
3580 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
3581 && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
8e45593f
NC
3582 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6
3583 && r_type <= (int) R_SH_LAST_INVALID_RELOC_6))
37c644f2
AO
3584 {
3585 bfd_set_error (bfd_error_bad_value);
b34976b6 3586 return FALSE;
37c644f2
AO
3587 }
3588
55e6e397 3589 howto = get_howto_table (output_bfd) + r_type;
37c644f2 3590
146be91a 3591 /* For relocs that aren't partial_inplace, we get the addend from
067653c5 3592 the relocation. */
146be91a
HPN
3593 if (! howto->partial_inplace)
3594 addend = rel->r_addend;
3595
6ee6e05a 3596 resolved_to_zero = FALSE;
37c644f2
AO
3597 h = NULL;
3598 sym = NULL;
3599 sec = NULL;
8e45593f
NC
3600 check_segment[0] = -1;
3601 check_segment[1] = -1;
37c644f2
AO
3602 if (r_symndx < symtab_hdr->sh_info)
3603 {
3604 sym = local_syms + r_symndx;
3605 sec = local_sections[r_symndx];
8e45593f
NC
3606
3607 symname = bfd_elf_string_from_elf_section
3608 (input_bfd, symtab_hdr->sh_link, sym->st_name);
3609 if (symname == NULL || *symname == '\0')
fd361982 3610 symname = bfd_section_name (sec);
8e45593f 3611
37c644f2
AO
3612 relocation = (sec->output_section->vma
3613 + sec->output_offset
3614 + sym->st_value);
ab96bf03 3615
dbaa2011 3616 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
3617 /* Handled below. */
3618 ;
0e1862bb 3619 else if (bfd_link_relocatable (info))
8a3975e6 3620 {
1049f94e 3621 /* This is a relocatable link. We don't have to change
8a3975e6
AO
3622 anything, unless the reloc is against a section symbol,
3623 in which case we have to adjust according to where the
3624 section symbol winds up in the output section. */
8a3975e6 3625 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
146be91a
HPN
3626 {
3627 if (! howto->partial_inplace)
3628 {
3629 /* For relocations with the addend in the
3630 relocation, we need just to update the addend.
3631 All real relocs are of type partial_inplace; this
3632 code is mostly for completeness. */
ab96bf03 3633 rel->r_addend += sec->output_offset;
146be91a
HPN
3634
3635 continue;
3636 }
3637
3638 /* Relocs of type partial_inplace need to pick up the
3639 contents in the contents and add the offset resulting
3640 from the changed location of the section symbol.
3641 Using _bfd_final_link_relocate (e.g. goto
3642 final_link_relocate) here would be wrong, because
3643 relocations marked pc_relative would get the current
3644 location subtracted, and we must only do that at the
3645 final link. */
3646 r = _bfd_relocate_contents (howto, input_bfd,
3647 sec->output_offset
3648 + sym->st_value,
3649 contents + rel->r_offset);
3650 goto relocation_done;
3651 }
8a3975e6
AO
3652
3653 continue;
3654 }
f8df10f4
JJ
3655 else if (! howto->partial_inplace)
3656 {
8517fae7 3657 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
f8df10f4
JJ
3658 addend = rel->r_addend;
3659 }
3660 else if ((sec->flags & SEC_MERGE)
3661 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
3662 {
3663 asection *msec;
3664
3665 if (howto->rightshift || howto->src_mask != 0xffffffff)
3666 {
4eca0228 3667 _bfd_error_handler
695344c0 3668 /* xgettext:c-format */
2dcf00ce
AM
3669 (_("%pB(%pA+%#" PRIx64 "): "
3670 "%s relocation against SEC_MERGE section"),
d003868e 3671 input_bfd, input_section,
2dcf00ce 3672 (uint64_t) rel->r_offset, howto->name);
b34976b6 3673 return FALSE;
f8df10f4
JJ
3674 }
3675
067653c5
AM
3676 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
3677 msec = sec;
3678 addend =
c629eae0 3679 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
f8df10f4
JJ
3680 - relocation;
3681 addend += msec->output_section->vma + msec->output_offset;
3682 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
3683 addend = 0;
3684 }
37c644f2
AO
3685 }
3686 else
3687 {
560e09e9
NC
3688 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
3689
ab96bf03 3690 relocation = 0;
37c644f2 3691 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8e45593f 3692 symname = h->root.root.string;
37c644f2
AO
3693 while (h->root.type == bfd_link_hash_indirect
3694 || h->root.type == bfd_link_hash_warning)
211dc24b 3695 h = (struct elf_link_hash_entry *) h->root.u.i.link;
37c644f2
AO
3696 if (h->root.type == bfd_link_hash_defined
3697 || h->root.type == bfd_link_hash_defweak)
3698 {
b34976b6 3699 bfd_boolean dyn;
067653c5 3700
e0af1f53 3701 dyn = htab ? htab->root.dynamic_sections_created : FALSE;
37c644f2
AO
3702 sec = h->root.u.def.section;
3703 /* In these cases, we don't need the relocation value.
3704 We check specially because in some obscure cases
435b1e90 3705 sec->output_section will be NULL. */
37c644f2 3706 if (r_type == R_SH_GOTPC
fbca6ad9
AO
3707 || r_type == R_SH_GOTPC_LOW16
3708 || r_type == R_SH_GOTPC_MEDLOW16
3709 || r_type == R_SH_GOTPC_MEDHI16
3710 || r_type == R_SH_GOTPC_HI16
3711 || ((r_type == R_SH_PLT32
3712 || r_type == R_SH_PLT_LOW16
3713 || r_type == R_SH_PLT_MEDLOW16
3714 || r_type == R_SH_PLT_MEDHI16
3715 || r_type == R_SH_PLT_HI16)
37c644f2 3716 && h->plt.offset != (bfd_vma) -1)
fbca6ad9 3717 || ((r_type == R_SH_GOT32
8e45593f
NC
3718 || r_type == R_SH_GOT20
3719 || r_type == R_SH_GOTFUNCDESC
3720 || r_type == R_SH_GOTFUNCDESC20
3721 || r_type == R_SH_GOTOFFFUNCDESC
3722 || r_type == R_SH_GOTOFFFUNCDESC20
3723 || r_type == R_SH_FUNCDESC
fbca6ad9
AO
3724 || r_type == R_SH_GOT_LOW16
3725 || r_type == R_SH_GOT_MEDLOW16
3726 || r_type == R_SH_GOT_MEDHI16
3727 || r_type == R_SH_GOT_HI16)
0e1862bb
L
3728 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3729 bfd_link_pic (info),
3730 h)
3731 && (! bfd_link_pic (info)
37c644f2 3732 || (! info->symbolic && h->dynindx != -1)
f5385ebf 3733 || !h->def_regular))
37c644f2
AO
3734 /* The cases above are those in which relocation is
3735 overwritten in the switch block below. The cases
3736 below are those in which we must defer relocation
3737 to run-time, because we can't resolve absolute
3738 addresses when creating a shared library. */
0e1862bb 3739 || (bfd_link_pic (info)
37c644f2 3740 && ((! info->symbolic && h->dynindx != -1)
f5385ebf 3741 || !h->def_regular)
37c644f2 3742 && ((r_type == R_SH_DIR32
f5385ebf 3743 && !h->forced_local)
f50ad433
KK
3744 || (r_type == R_SH_REL32
3745 && !SYMBOL_CALLS_LOCAL (info, h)))
37c644f2
AO
3746 && ((input_section->flags & SEC_ALLOC) != 0
3747 /* DWARF will emit R_SH_DIR32 relocations in its
3748 sections against symbols defined externally
3749 in shared libraries. We can't do anything
3750 with them here. */
067653c5 3751 || ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 3752 && h->def_dynamic)))
1448fa32
KK
3753 /* Dynamic relocs are not propagated for SEC_DEBUGGING
3754 sections because such sections are not SEC_ALLOC and
3755 thus ld.so will not process them. */
3756 || (sec->output_section == NULL
3757 && ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 3758 && h->def_dynamic))
3376eaf5 3759 || (sec->output_section == NULL
8e45593f
NC
3760 && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE
3761 || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD)))
ab96bf03
AM
3762 ;
3763 else if (sec->output_section != NULL)
fad3d2c1 3764 relocation = (h->root.u.def.value
ab96bf03 3765 + sec->output_section->vma
fad3d2c1 3766 + sec->output_offset);
0e1862bb 3767 else if (!bfd_link_relocatable (info)
1d5316ab
AM
3768 && (_bfd_elf_section_offset (output_bfd, info,
3769 input_section,
3770 rel->r_offset)
3771 != (bfd_vma) -1))
37c644f2 3772 {
4eca0228 3773 _bfd_error_handler
695344c0 3774 /* xgettext:c-format */
2dcf00ce
AM
3775 (_("%pB(%pA+%#" PRIx64 "): "
3776 "unresolvable %s relocation against symbol `%s'"),
843fe662
L
3777 input_bfd,
3778 input_section,
2dcf00ce 3779 (uint64_t) rel->r_offset,
843fe662
L
3780 howto->name,
3781 h->root.root.string);
b34976b6 3782 return FALSE;
37c644f2 3783 }
37c644f2
AO
3784 }
3785 else if (h->root.type == bfd_link_hash_undefweak)
6ee6e05a 3786 resolved_to_zero = UNDEFWEAK_NO_DYNAMIC_RELOC (info, h);
59c2e50f 3787 else if (info->unresolved_syms_in_objects == RM_IGNORE
067653c5 3788 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
ab96bf03 3789 ;
0e1862bb 3790 else if (!bfd_link_relocatable (info))
95a51568
FS
3791 info->callbacks->undefined_symbol
3792 (info, h->root.root.string, input_bfd, input_section,
3793 rel->r_offset,
3794 (info->unresolved_syms_in_objects == RM_DIAGNOSE
3795 && !info->warn_unresolved_syms)
3796 || ELF_ST_VISIBILITY (h->other));
3797 }
37c644f2 3798
dbaa2011 3799 if (sec != NULL && discarded_section (sec))
e4067dbb 3800 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3801 rel, 1, relend, howto, 0, contents);
ab96bf03 3802
0e1862bb 3803 if (bfd_link_relocatable (info))
ab96bf03
AM
3804 continue;
3805
8e45593f
NC
3806 /* Check for inter-segment relocations in FDPIC files. Most
3807 relocations connect the relocation site to the location of
3808 the target symbol, but there are some exceptions below. */
3809 check_segment[0] = isec_segment;
3810 if (sec != NULL)
3811 check_segment[1] = sh_elf_osec_to_segment (output_bfd,
3812 sec->output_section);
3813 else
3814 check_segment[1] = -1;
3815
435b1e90 3816 switch ((int) r_type)
37c644f2
AO
3817 {
3818 final_link_relocate:
3819 /* COFF relocs don't use the addend. The addend is used for
435b1e90 3820 R_SH_DIR32 to be compatible with other compilers. */
37c644f2
AO
3821 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3822 contents, rel->r_offset,
3823 relocation, addend);
3824 break;
3825
3826 case R_SH_IND12W:
cd6ec716
DD
3827 goto final_link_relocate;
3828
37c644f2
AO
3829 case R_SH_DIR8WPN:
3830 case R_SH_DIR8WPZ:
3831 case R_SH_DIR8WPL:
cd6ec716
DD
3832 /* If the reloc is against the start of this section, then
3833 the assembler has already taken care of it and the reloc
3834 is here only to assist in relaxing. If the reloc is not
3835 against the start of this section, then it's against an
3836 external symbol and we must deal with it ourselves. */
3837 if (input_section->output_section->vma + input_section->output_offset
3838 != relocation)
3839 {
3840 int disp = (relocation
3841 - input_section->output_section->vma
3842 - input_section->output_offset
3843 - rel->r_offset);
3844 int mask = 0;
3845 switch (r_type)
3846 {
3847 case R_SH_DIR8WPN:
3848 case R_SH_DIR8WPZ: mask = 1; break;
3849 case R_SH_DIR8WPL: mask = 3; break;
3850 default: mask = 0; break;
3851 }
3852 if (disp & mask)
3853 {
4eca0228 3854 _bfd_error_handler
695344c0 3855 /* xgettext:c-format */
2dcf00ce
AM
3856 (_("%pB: %#" PRIx64 ": fatal: "
3857 "unaligned branch target for relax-support relocation"),
4eca0228 3858 input_section->owner,
2dcf00ce 3859 (uint64_t) rel->r_offset);
cd6ec716 3860 bfd_set_error (bfd_error_bad_value);
b34976b6 3861 return FALSE;
cd6ec716
DD
3862 }
3863 relocation -= 4;
3864 goto final_link_relocate;
3865 }
3866 r = bfd_reloc_ok;
3867 break;
37c644f2
AO
3868
3869 default:
3870 bfd_set_error (bfd_error_bad_value);
b34976b6 3871 return FALSE;
37c644f2 3872
d38eb334
DD
3873 case R_SH_DIR16:
3874 case R_SH_DIR8:
3875 case R_SH_DIR8U:
3876 case R_SH_DIR8S:
3877 case R_SH_DIR4U:
3878 goto final_link_relocate;
3879
3880 case R_SH_DIR8UL:
3881 case R_SH_DIR4UL:
3882 if (relocation & 3)
3883 {
4eca0228 3884 _bfd_error_handler
695344c0 3885 /* xgettext:c-format */
2dcf00ce
AM
3886 (_("%pB: %#" PRIx64 ": fatal: "
3887 "unaligned %s relocation %#" PRIx64),
3888 input_section->owner, (uint64_t) rel->r_offset,
3889 howto->name, (uint64_t) relocation);
d38eb334
DD
3890 bfd_set_error (bfd_error_bad_value);
3891 return FALSE;
3892 }
3893 goto final_link_relocate;
3894
3895 case R_SH_DIR8UW:
3896 case R_SH_DIR8SW:
3897 case R_SH_DIR4UW:
3898 if (relocation & 1)
3899 {
4eca0228 3900 _bfd_error_handler
695344c0 3901 /* xgettext:c-format */
2dcf00ce
AM
3902 (_("%pB: %#" PRIx64 ": fatal: "
3903 "unaligned %s relocation %#" PRIx64 ""),
4eca0228 3904 input_section->owner,
2dcf00ce
AM
3905 (uint64_t) rel->r_offset, howto->name,
3906 (uint64_t) relocation);
d38eb334
DD
3907 bfd_set_error (bfd_error_bad_value);
3908 return FALSE;
3909 }
3910 goto final_link_relocate;
3911
3912 case R_SH_PSHA:
3913 if ((signed int)relocation < -32
3914 || (signed int)relocation > 32)
3915 {
4eca0228 3916 _bfd_error_handler
695344c0 3917 /* xgettext:c-format */
2dcf00ce
AM
3918 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHA relocation %" PRId64
3919 " not in range -32..32"),
4eca0228 3920 input_section->owner,
2dcf00ce
AM
3921 (uint64_t) rel->r_offset,
3922 (int64_t) relocation);
d38eb334
DD
3923 bfd_set_error (bfd_error_bad_value);
3924 return FALSE;
3925 }
3926 goto final_link_relocate;
3927
3928 case R_SH_PSHL:
3929 if ((signed int)relocation < -16
3930 || (signed int)relocation > 16)
3931 {
4eca0228 3932 _bfd_error_handler
695344c0 3933 /* xgettext:c-format */
2dcf00ce
AM
3934 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHL relocation %" PRId64
3935 " not in range -32..32"),
4eca0228 3936 input_section->owner,
2dcf00ce
AM
3937 (uint64_t) rel->r_offset,
3938 (int64_t) relocation);
d38eb334
DD
3939 bfd_set_error (bfd_error_bad_value);
3940 return FALSE;
3941 }
3942 goto final_link_relocate;
3943
37c644f2
AO
3944 case R_SH_DIR32:
3945 case R_SH_REL32:
0e1862bb 3946 if (bfd_link_pic (info)
04e534c3 3947 && (h == NULL
6ee6e05a
L
3948 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3949 && !resolved_to_zero)
04e534c3 3950 || h->root.type != bfd_link_hash_undefweak)
cf35638d 3951 && r_symndx != STN_UNDEF
37c644f2 3952 && (input_section->flags & SEC_ALLOC) != 0
3348747a 3953 && !is_vxworks_tls
46e993b9 3954 && (r_type == R_SH_DIR32
3d85aebe 3955 || !SYMBOL_CALLS_LOCAL (info, h)))
37c644f2
AO
3956 {
3957 Elf_Internal_Rela outrel;
947216bf 3958 bfd_byte *loc;
b34976b6 3959 bfd_boolean skip, relocate;
37c644f2
AO
3960
3961 /* When generating a shared object, these relocations
3962 are copied into the output file to be resolved at run
3963 time. */
3964
3965 if (sreloc == NULL)
3966 {
83bac4b0
NC
3967 sreloc = _bfd_elf_get_dynamic_reloc_section
3968 (input_bfd, input_section, /*rela?*/ TRUE);
3969 if (sreloc == NULL)
b34976b6 3970 return FALSE;
37c644f2
AO
3971 }
3972
b34976b6
AM
3973 skip = FALSE;
3974 relocate = FALSE;
37c644f2 3975
c629eae0
JJ
3976 outrel.r_offset =
3977 _bfd_elf_section_offset (output_bfd, info, input_section,
3978 rel->r_offset);
3979 if (outrel.r_offset == (bfd_vma) -1)
b34976b6 3980 skip = TRUE;
0bb2d96a 3981 else if (outrel.r_offset == (bfd_vma) -2)
b34976b6 3982 skip = TRUE, relocate = TRUE;
37c644f2
AO
3983 outrel.r_offset += (input_section->output_section->vma
3984 + input_section->output_offset);
3985
3986 if (skip)
0bb2d96a 3987 memset (&outrel, 0, sizeof outrel);
37c644f2
AO
3988 else if (r_type == R_SH_REL32)
3989 {
3990 BFD_ASSERT (h != NULL && h->dynindx != -1);
37c644f2 3991 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
146be91a 3992 outrel.r_addend
55e6e397
RS
3993 = (howto->partial_inplace
3994 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
3995 : addend);
37c644f2 3996 }
e0af1f53 3997 else if (fdpic_p
8e45593f
NC
3998 && (h == NULL
3999 || ((info->symbolic || h->dynindx == -1)
4000 && h->def_regular)))
4001 {
4002 int dynindx;
4003
4004 BFD_ASSERT (sec != NULL);
4005 BFD_ASSERT (sec->output_section != NULL);
4006 dynindx = elf_section_data (sec->output_section)->dynindx;
4007 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4008 outrel.r_addend = relocation;
4009 outrel.r_addend
4010 += (howto->partial_inplace
4011 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4012 : addend);
4013 outrel.r_addend -= sec->output_section->vma;
4014 }
37c644f2
AO
4015 else
4016 {
4017 /* h->dynindx may be -1 if this symbol was marked to
4018 become local. */
4019 if (h == NULL
4020 || ((info->symbolic || h->dynindx == -1)
f5385ebf 4021 && h->def_regular))
37c644f2 4022 {
55e6e397 4023 relocate = howto->partial_inplace;
37c644f2 4024 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
37c644f2
AO
4025 }
4026 else
4027 {
4028 BFD_ASSERT (h->dynindx != -1);
37c644f2 4029 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
37c644f2 4030 }
55e6e397
RS
4031 outrel.r_addend = relocation;
4032 outrel.r_addend
4033 += (howto->partial_inplace
4034 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4035 : addend);
37c644f2
AO
4036 }
4037
947216bf
AM
4038 loc = sreloc->contents;
4039 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4040 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
37c644f2 4041
8e45593f
NC
4042 check_segment[0] = check_segment[1] = -1;
4043
37c644f2
AO
4044 /* If this reloc is against an external symbol, we do
4045 not want to fiddle with the addend. Otherwise, we
4046 need to include the symbol value so that it becomes
4047 an addend for the dynamic reloc. */
4048 if (! relocate)
4049 continue;
4050 }
0e1862bb 4051 else if (fdpic_p && !bfd_link_pic (info)
8e45593f
NC
4052 && r_type == R_SH_DIR32
4053 && (input_section->flags & SEC_ALLOC) != 0)
4054 {
4055 bfd_vma offset;
4056
e0af1f53
MR
4057 BFD_ASSERT (htab);
4058
8e45593f
NC
4059 if (sh_elf_osec_readonly_p (output_bfd,
4060 input_section->output_section))
4061 {
4eca0228 4062 _bfd_error_handler
695344c0 4063 /* xgettext:c-format */
2dcf00ce
AM
4064 (_("%pB(%pA+%#" PRIx64 "): "
4065 "cannot emit fixup to `%s' in read-only section"),
8e45593f
NC
4066 input_bfd,
4067 input_section,
2dcf00ce 4068 (uint64_t) rel->r_offset,
8e45593f
NC
4069 symname);
4070 return FALSE;
4071 }
4072
4073 offset = _bfd_elf_section_offset (output_bfd, info,
4074 input_section, rel->r_offset);
4075 if (offset != (bfd_vma)-1)
4076 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4077 input_section->output_section->vma
4078 + input_section->output_offset
4079 + rel->r_offset);
4080
4081 check_segment[0] = check_segment[1] = -1;
4082 }
a6f713fc
KK
4083 /* We don't want warnings for non-NULL tests on undefined weak
4084 symbols. */
4085 else if (r_type == R_SH_REL32
4086 && h
1b786873 4087 && h->root.type == bfd_link_hash_undefweak)
a6f713fc 4088 check_segment[0] = check_segment[1] = -1;
37c644f2
AO
4089 goto final_link_relocate;
4090
fbca6ad9 4091 case R_SH_GOTPLT32:
fbca6ad9
AO
4092 /* Relocation is to the entry for this symbol in the
4093 procedure linkage table. */
4094
4095 if (h == NULL
f5385ebf 4096 || h->forced_local
0e1862bb 4097 || ! bfd_link_pic (info)
fbca6ad9
AO
4098 || info->symbolic
4099 || h->dynindx == -1
4100 || h->plt.offset == (bfd_vma) -1
4101 || h->got.offset != (bfd_vma) -1)
4102 goto force_got;
4103
4104 /* Relocation is to the entry for this symbol in the global
4105 offset table extension for the procedure linkage table. */
fbca6ad9 4106
e0af1f53 4107 BFD_ASSERT (htab);
067653c5 4108 BFD_ASSERT (sgotplt != NULL);
fbca6ad9 4109 relocation = (sgotplt->output_offset
55e6e397
RS
4110 + (get_plt_index (htab->plt_info, h->plt.offset)
4111 + 3) * 4);
fbca6ad9
AO
4112
4113#ifdef GOT_BIAS
4114 relocation -= GOT_BIAS;
4115#endif
4116
4117 goto final_link_relocate;
4118
4119 force_got:
37c644f2 4120 case R_SH_GOT32:
8e45593f 4121 case R_SH_GOT20:
37c644f2
AO
4122 /* Relocation is to the entry for this symbol in the global
4123 offset table. */
067653c5 4124
e0af1f53 4125 BFD_ASSERT (htab);
067653c5 4126 BFD_ASSERT (sgot != NULL);
8e45593f 4127 check_segment[0] = check_segment[1] = -1;
37c644f2
AO
4128
4129 if (h != NULL)
4130 {
b34976b6 4131 bfd_boolean dyn;
37c644f2
AO
4132
4133 off = h->got.offset;
4134 BFD_ASSERT (off != (bfd_vma) -1);
4135
067653c5 4136 dyn = htab->root.dynamic_sections_created;
0e1862bb
L
4137 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4138 bfd_link_pic (info),
4139 h)
4140 || (bfd_link_pic (info)
3d85aebe 4141 && SYMBOL_REFERENCES_LOCAL (info, h))
6ee6e05a
L
4142 || ((ELF_ST_VISIBILITY (h->other)
4143 || resolved_to_zero)
04e534c3 4144 && h->root.type == bfd_link_hash_undefweak))
37c644f2
AO
4145 {
4146 /* This is actually a static link, or it is a
4147 -Bsymbolic link and the symbol is defined
4148 locally, or the symbol was forced to be local
4149 because of a version file. We must initialize
4150 this entry in the global offset table. Since the
4151 offset must always be a multiple of 4, we use the
4152 least significant bit to record whether we have
4153 initialized it already.
4154
4155 When doing a dynamic link, we create a .rela.got
4156 relocation entry to initialize the value. This
4157 is done in the finish_dynamic_symbol routine. */
4158 if ((off & 1) != 0)
4159 off &= ~1;
4160 else
4161 {
4162 bfd_put_32 (output_bfd, relocation,
4163 sgot->contents + off);
211dc24b 4164 h->got.offset |= 1;
8e45593f
NC
4165
4166 /* If we initialize the GOT entry here with a valid
4167 symbol address, also add a fixup. */
0e1862bb 4168 if (fdpic_p && !bfd_link_pic (info)
8e45593f
NC
4169 && sh_elf_hash_entry (h)->got_type == GOT_NORMAL
4170 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4171 || h->root.type != bfd_link_hash_undefweak))
4172 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4173 sgot->output_section->vma
4174 + sgot->output_offset
4175 + off);
37c644f2
AO
4176 }
4177 }
4178
8e45593f 4179 relocation = sh_elf_got_offset (htab) + off;
37c644f2
AO
4180 }
4181 else
4182 {
37c644f2
AO
4183 BFD_ASSERT (local_got_offsets != NULL
4184 && local_got_offsets[r_symndx] != (bfd_vma) -1);
4185
4186 off = local_got_offsets[r_symndx];
4187
4188 /* The offset must always be a multiple of 4. We use
4189 the least significant bit to record whether we have
4190 already generated the necessary reloc. */
4191 if ((off & 1) != 0)
4192 off &= ~1;
4193 else
4194 {
4195 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4196
0e1862bb 4197 if (bfd_link_pic (info))
37c644f2 4198 {
37c644f2 4199 Elf_Internal_Rela outrel;
947216bf 4200 bfd_byte *loc;
37c644f2 4201
37c644f2
AO
4202 outrel.r_offset = (sgot->output_section->vma
4203 + sgot->output_offset
4204 + off);
e0af1f53 4205 if (fdpic_p)
8e45593f
NC
4206 {
4207 int dynindx
4208 = elf_section_data (sec->output_section)->dynindx;
4209 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4210 outrel.r_addend = relocation;
4211 outrel.r_addend -= sec->output_section->vma;
4212 }
4213 else
4214 {
4215 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4216 outrel.r_addend = relocation;
4217 }
947216bf
AM
4218 loc = srelgot->contents;
4219 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4220 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
37c644f2 4221 }
e0af1f53 4222 else if (fdpic_p
8e45593f
NC
4223 && (sh_elf_local_got_type (input_bfd) [r_symndx]
4224 == GOT_NORMAL))
4225 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4226 sgot->output_section->vma
4227 + sgot->output_offset
4228 + off);
37c644f2 4229
211dc24b 4230 local_got_offsets[r_symndx] |= 1;
37c644f2
AO
4231 }
4232
8e45593f 4233 relocation = sh_elf_got_offset (htab) + off;
37c644f2
AO
4234 }
4235
fbca6ad9 4236#ifdef GOT_BIAS
067653c5 4237 relocation -= GOT_BIAS;
fbca6ad9
AO
4238#endif
4239
8e45593f
NC
4240 if (r_type == R_SH_GOT20)
4241 {
4242 r = install_movi20_field (output_bfd, relocation + addend,
4243 input_bfd, input_section, contents,
4244 rel->r_offset);
4245 break;
4246 }
4247 else
4248 goto final_link_relocate;
37c644f2
AO
4249
4250 case R_SH_GOTOFF:
8e45593f 4251 case R_SH_GOTOFF20:
8e45593f
NC
4252 /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
4253 we place at the start of the .got.plt section. This is the same
4254 as the start of the output .got section, unless there are function
4255 descriptors in front of it. */
e0af1f53 4256 BFD_ASSERT (htab);
8e45593f
NC
4257 BFD_ASSERT (sgotplt != NULL);
4258 check_segment[0] = got_segment;
4259 relocation -= sgotplt->output_section->vma + sgotplt->output_offset
4260 + htab->root.hgot->root.u.def.value;
37c644f2 4261
fbca6ad9
AO
4262#ifdef GOT_BIAS
4263 relocation -= GOT_BIAS;
4264#endif
4265
4266 addend = rel->r_addend;
4267
8e45593f
NC
4268 if (r_type == R_SH_GOTOFF20)
4269 {
4270 r = install_movi20_field (output_bfd, relocation + addend,
4271 input_bfd, input_section, contents,
4272 rel->r_offset);
4273 break;
4274 }
4275 else
4276 goto final_link_relocate;
37c644f2
AO
4277
4278 case R_SH_GOTPC:
4279 /* Use global offset table as symbol value. */
4280
8e45593f
NC
4281 BFD_ASSERT (sgotplt != NULL);
4282 relocation = sgotplt->output_section->vma + sgotplt->output_offset;
37c644f2 4283
fbca6ad9
AO
4284#ifdef GOT_BIAS
4285 relocation += GOT_BIAS;
4286#endif
4287
4288 addend = rel->r_addend;
4289
37c644f2
AO
4290 goto final_link_relocate;
4291
4292 case R_SH_PLT32:
4293 /* Relocation is to the entry for this symbol in the
4294 procedure linkage table. */
4295
4296 /* Resolve a PLT reloc against a local symbol directly,
4297 without using the procedure linkage table. */
4298 if (h == NULL)
4299 goto final_link_relocate;
4300
8e45593f
NC
4301 /* We don't want to warn on calls to undefined weak symbols,
4302 as calls to them must be protected by non-NULL tests
4303 anyway, and unprotected calls would invoke undefined
4304 behavior. */
4305 if (h->root.type == bfd_link_hash_undefweak)
4306 check_segment[0] = check_segment[1] = -1;
4307
f5385ebf 4308 if (h->forced_local)
37c644f2
AO
4309 goto final_link_relocate;
4310
4311 if (h->plt.offset == (bfd_vma) -1)
4312 {
4313 /* We didn't make a PLT entry for this symbol. This
4314 happens when statically linking PIC code, or when
4315 using -Bsymbolic. */
4316 goto final_link_relocate;
4317 }
4318
067653c5 4319 BFD_ASSERT (splt != NULL);
8e45593f 4320 check_segment[1] = plt_segment;
37c644f2
AO
4321 relocation = (splt->output_section->vma
4322 + splt->output_offset
4323 + h->plt.offset);
4324
fbca6ad9
AO
4325 addend = rel->r_addend;
4326
37c644f2
AO
4327 goto final_link_relocate;
4328
8e45593f
NC
4329 /* Relocation is to the canonical function descriptor for this
4330 symbol, possibly via the GOT. Initialize the GOT
4331 entry and function descriptor if necessary. */
4332 case R_SH_GOTFUNCDESC:
4333 case R_SH_GOTFUNCDESC20:
4334 case R_SH_FUNCDESC:
4335 {
4336 int dynindx = -1;
4337 asection *reloc_section;
4338 bfd_vma reloc_offset;
4339 int reloc_type = R_SH_FUNCDESC;
4340
e0af1f53
MR
4341 BFD_ASSERT (htab);
4342
8e45593f
NC
4343 check_segment[0] = check_segment[1] = -1;
4344
4345 /* FIXME: See what FRV does for global symbols in the
4346 executable, with --export-dynamic. Do they need ld.so
4347 to allocate official descriptors? See what this code
4348 does. */
4349
4350 relocation = 0;
4351 addend = 0;
4352
4353 if (r_type == R_SH_FUNCDESC)
4354 {
4355 reloc_section = input_section;
4356 reloc_offset = rel->r_offset;
4357 }
4358 else
4359 {
e0af1f53 4360 reloc_section = sgot;
8e45593f
NC
4361
4362 if (h != NULL)
4363 reloc_offset = h->got.offset;
4364 else
4365 {
4366 BFD_ASSERT (local_got_offsets != NULL);
4367 reloc_offset = local_got_offsets[r_symndx];
4368 }
4369 BFD_ASSERT (reloc_offset != MINUS_ONE);
4370
4371 if (reloc_offset & 1)
4372 {
4373 reloc_offset &= ~1;
4374 goto funcdesc_done_got;
4375 }
4376 }
4377
4378 if (h && h->root.type == bfd_link_hash_undefweak
4379 && (SYMBOL_CALLS_LOCAL (info, h)
4380 || !htab->root.dynamic_sections_created))
4381 /* Undefined weak symbol which will not be dynamically
4382 resolved later; leave it at zero. */
4383 goto funcdesc_leave_zero;
4384 else if (SYMBOL_CALLS_LOCAL (info, h)
4385 && ! SYMBOL_FUNCDESC_LOCAL (info, h))
4386 {
4387 /* If the symbol needs a non-local function descriptor
4388 but binds locally (i.e., its visibility is
4389 protected), emit a dynamic relocation decayed to
4390 section+offset. This is an optimization; the dynamic
4391 linker would resolve our function descriptor request
4392 to our copy of the function anyway. */
4393 dynindx = elf_section_data (h->root.u.def.section
4394 ->output_section)->dynindx;
4395 relocation += h->root.u.def.section->output_offset
4396 + h->root.u.def.value;
4397 }
4398 else if (! SYMBOL_FUNCDESC_LOCAL (info, h))
4399 {
4400 /* If the symbol is dynamic and there will be dynamic
4401 symbol resolution because we are or are linked with a
4402 shared library, emit a FUNCDESC relocation such that
4403 the dynamic linker will allocate the function
4404 descriptor. */
4405 BFD_ASSERT (h->dynindx != -1);
4406 dynindx = h->dynindx;
4407 }
4408 else
4409 {
4410 bfd_vma offset;
4411
4412 /* Otherwise, we know we have a private function
4413 descriptor, so reference it directly. */
4414 reloc_type = R_SH_DIR32;
4415 dynindx = elf_section_data (htab->sfuncdesc
4416 ->output_section)->dynindx;
4417
4418 if (h)
4419 {
4420 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4421 BFD_ASSERT (offset != MINUS_ONE);
4422 if ((offset & 1) == 0)
4423 {
4424 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4425 offset, NULL, 0))
4426 return FALSE;
4427 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4428 }
4429 }
4430 else
4431 {
4432 union gotref *local_funcdesc;
4433
4434 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4435 offset = local_funcdesc[r_symndx].offset;
4436 BFD_ASSERT (offset != MINUS_ONE);
4437 if ((offset & 1) == 0)
4438 {
4439 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4440 offset, sec,
4441 sym->st_value))
4442 return FALSE;
4443 local_funcdesc[r_symndx].offset |= 1;
4444 }
4445 }
4446
4447 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4448 }
4449
0e1862bb 4450 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
4451 {
4452 bfd_vma offset;
4453
4454 if (sh_elf_osec_readonly_p (output_bfd,
4455 reloc_section->output_section))
4456 {
4eca0228 4457 _bfd_error_handler
695344c0 4458 /* xgettext:c-format */
2dcf00ce
AM
4459 (_("%pB(%pA+%#" PRIx64 "): "
4460 "cannot emit fixup to `%s' in read-only section"),
8e45593f
NC
4461 input_bfd,
4462 input_section,
2dcf00ce 4463 (uint64_t) rel->r_offset,
8e45593f
NC
4464 symname);
4465 return FALSE;
4466 }
4467
4468 offset = _bfd_elf_section_offset (output_bfd, info,
4469 reloc_section, reloc_offset);
4470
4471 if (offset != (bfd_vma)-1)
4472 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4473 offset
4474 + reloc_section->output_section->vma
4475 + reloc_section->output_offset);
4476 }
4477 else if ((reloc_section->output_section->flags
4478 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
4479 {
4480 bfd_vma offset;
4481
4482 if (sh_elf_osec_readonly_p (output_bfd,
4483 reloc_section->output_section))
4484 {
4485 info->callbacks->warning
4486 (info,
4487 _("cannot emit dynamic relocations in read-only section"),
4488 symname, input_bfd, reloc_section, reloc_offset);
4489 return FALSE;
4490 }
4491
8e45593f
NC
4492 offset = _bfd_elf_section_offset (output_bfd, info,
4493 reloc_section, reloc_offset);
4494
4495 if (offset != (bfd_vma)-1)
4496 sh_elf_add_dyn_reloc (output_bfd, srelgot,
4497 offset
4498 + reloc_section->output_section->vma
4499 + reloc_section->output_offset,
4500 reloc_type, dynindx, relocation);
4501
4502 if (r_type == R_SH_FUNCDESC)
4503 {
4504 r = bfd_reloc_ok;
4505 break;
4506 }
4507 else
4508 {
4509 relocation = 0;
4510 goto funcdesc_leave_zero;
4511 }
4512 }
4513
4514 if (SYMBOL_FUNCDESC_LOCAL (info, h))
4515 relocation += htab->sfuncdesc->output_section->vma;
4516 funcdesc_leave_zero:
4517 if (r_type != R_SH_FUNCDESC)
4518 {
4519 bfd_put_32 (output_bfd, relocation,
4520 reloc_section->contents + reloc_offset);
4521 if (h != NULL)
4522 h->got.offset |= 1;
4523 else
4524 local_got_offsets[r_symndx] |= 1;
4525
4526 funcdesc_done_got:
4527
4528 relocation = sh_elf_got_offset (htab) + reloc_offset;
4529#ifdef GOT_BIAS
4530 relocation -= GOT_BIAS;
4531#endif
4532 }
4533 if (r_type == R_SH_GOTFUNCDESC20)
4534 {
4535 r = install_movi20_field (output_bfd, relocation + addend,
4536 input_bfd, input_section, contents,
4537 rel->r_offset);
4538 break;
4539 }
4540 else
4541 goto final_link_relocate;
4542 }
4543 break;
4544
4545 case R_SH_GOTOFFFUNCDESC:
4546 case R_SH_GOTOFFFUNCDESC20:
4547 /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
4548 executable and --export-dynamic. If such symbols get
4549 ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
4550 for them. */
e0af1f53 4551 BFD_ASSERT (htab);
8e45593f
NC
4552
4553 check_segment[0] = check_segment[1] = -1;
4554 relocation = 0;
4555 addend = rel->r_addend;
4556
4557 if (h && (h->root.type == bfd_link_hash_undefweak
4558 || !SYMBOL_FUNCDESC_LOCAL (info, h)))
4559 {
4560 _bfd_error_handler
695344c0 4561 /* xgettext:c-format */
2dcf00ce
AM
4562 (_("%pB(%pA+%#" PRIx64 "): "
4563 "%s relocation against external symbol \"%s\""),
4564 input_bfd, input_section, (uint64_t) rel->r_offset,
4565 howto->name, h->root.root.string);
8e45593f
NC
4566 return FALSE;
4567 }
4568 else
4569 {
4570 bfd_vma offset;
4571
4572 /* Otherwise, we know we have a private function
4573 descriptor, so reference it directly. */
4574 if (h)
4575 {
4576 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4577 BFD_ASSERT (offset != MINUS_ONE);
4578 if ((offset & 1) == 0)
4579 {
4580 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4581 offset, NULL, 0))
4582 return FALSE;
4583 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4584 }
4585 }
4586 else
4587 {
4588 union gotref *local_funcdesc;
4589
4590 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4591 offset = local_funcdesc[r_symndx].offset;
4592 BFD_ASSERT (offset != MINUS_ONE);
4593 if ((offset & 1) == 0)
4594 {
4595 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4596 offset, sec,
4597 sym->st_value))
4598 return FALSE;
4599 local_funcdesc[r_symndx].offset |= 1;
4600 }
4601 }
4602
4603 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4604 }
4605
e0af1f53
MR
4606 relocation -= (htab->root.hgot->root.u.def.value
4607 + sgotplt->output_offset);
8e45593f
NC
4608#ifdef GOT_BIAS
4609 relocation -= GOT_BIAS;
4610#endif
4611
4612 if (r_type == R_SH_GOTOFFFUNCDESC20)
4613 {
4614 r = install_movi20_field (output_bfd, relocation + addend,
4615 input_bfd, input_section, contents,
4616 rel->r_offset);
4617 break;
4618 }
4619 else
4620 goto final_link_relocate;
4621
37c644f2
AO
4622 case R_SH_LOOP_START:
4623 {
4624 static bfd_vma start, end;
4625
4626 start = (relocation + rel->r_addend
4627 - (sec->output_section->vma + sec->output_offset));
4628 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4629 rel->r_offset, sec, start, end);
4630 break;
4631
4632 case R_SH_LOOP_END:
4633 end = (relocation + rel->r_addend
4634 - (sec->output_section->vma + sec->output_offset));
4635 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4636 rel->r_offset, sec, start, end);
4637 break;
4638 }
3376eaf5
KK
4639
4640 case R_SH_TLS_GD_32:
4641 case R_SH_TLS_IE_32:
e0af1f53 4642 BFD_ASSERT (htab);
8e45593f 4643 check_segment[0] = check_segment[1] = -1;
3376eaf5 4644 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
8e45593f 4645 got_type = GOT_UNKNOWN;
3376eaf5 4646 if (h == NULL && local_got_offsets)
8e45593f 4647 got_type = sh_elf_local_got_type (input_bfd) [r_symndx];
3376eaf5
KK
4648 else if (h != NULL)
4649 {
8e45593f 4650 got_type = sh_elf_hash_entry (h)->got_type;
0e1862bb 4651 if (! bfd_link_pic (info)
3376eaf5 4652 && (h->dynindx == -1
f5385ebf 4653 || h->def_regular))
267fb3c1 4654 r_type = R_SH_TLS_LE_32;
3376eaf5
KK
4655 }
4656
8e45593f 4657 if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE)
3376eaf5
KK
4658 r_type = R_SH_TLS_IE_32;
4659
4660 if (r_type == R_SH_TLS_LE_32)
4661 {
4662 bfd_vma offset;
4663 unsigned short insn;
3376eaf5
KK
4664
4665 if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
4666 {
4667 /* GD->LE transition:
4668 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
b34976b6 4669 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
3376eaf5
KK
4670 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4671 We change it into:
4672 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
4673 nop; nop; ...
4674 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
4675
4676 offset = rel->r_offset;
a05b9f5e
NC
4677 if (offset < 16)
4678 {
4679 _bfd_error_handler
4680 /* xgettext:c-format */
4681 (_("%pB(%pA): offset in relocation for GD->LE translation is too small: %#" PRIx64),
4682 input_bfd, input_section, (uint64_t) offset);
4683 return FALSE;
4684 }
4685
3376eaf5
KK
4686 /* Size of GD instructions is 16 or 18. */
4687 offset -= 16;
4688 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4689 if ((insn & 0xff00) == 0xc700)
4690 {
4691 BFD_ASSERT (offset >= 2);
4692 offset -= 2;
4693 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4694 }
4695
a05b9f5e
NC
4696 if ((insn & 0xff00) != 0xd400)
4697 _bfd_error_handler
4698 /* xgettext:c-format */ /* The backslash is to prevent bogus trigraph detection. */
4699 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd4?\?)"),
4700 input_bfd, input_section, (uint64_t) offset, (int) insn);
4701
3376eaf5 4702 insn = bfd_get_16 (input_bfd, contents + offset + 2);
a05b9f5e
NC
4703
4704 if ((insn & 0xff00) != 0xc700)
4705 _bfd_error_handler
4706 /* xgettext:c-format */
4707 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xc7?\?)"),
4708 input_bfd, input_section, (uint64_t) offset, (int) insn);
4709
3376eaf5 4710 insn = bfd_get_16 (input_bfd, contents + offset + 4);
a05b9f5e
NC
4711 if ((insn & 0xff00) != 0xd100)
4712 _bfd_error_handler
4713 /* xgettext:c-format */
4714 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd1?\?)"),
4715 input_bfd, input_section, (uint64_t) offset, (int) insn);
4716
3376eaf5 4717 insn = bfd_get_16 (input_bfd, contents + offset + 6);
a05b9f5e
NC
4718 if (insn != 0x310c)
4719 _bfd_error_handler
4720 /* xgettext:c-format */
4721 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x310c)"),
4722 input_bfd, input_section, (uint64_t) offset, (int) insn);
4723
3376eaf5 4724 insn = bfd_get_16 (input_bfd, contents + offset + 8);
a05b9f5e
NC
4725 if (insn != 0x410b)
4726 _bfd_error_handler
4727 /* xgettext:c-format */
4728 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x410b)"),
4729 input_bfd, input_section, (uint64_t) offset, (int) insn);
4730
3376eaf5 4731 insn = bfd_get_16 (input_bfd, contents + offset + 10);
a05b9f5e
NC
4732 if (insn != 0x34cc)
4733 _bfd_error_handler
4734 /* xgettext:c-format */
4735 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x34cc)"),
4736 input_bfd, input_section, (uint64_t) offset, (int) insn);
3376eaf5
KK
4737
4738 bfd_put_16 (output_bfd, 0x0012, contents + offset + 2);
4739 bfd_put_16 (output_bfd, 0x304c, contents + offset + 4);
4740 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
4741 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4742 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4743 }
4744 else
4745 {
91d6fa6a 4746 int target;
3376eaf5
KK
4747
4748 /* IE->LE transition:
a05b9f5e
NC
4749 mov.l 1f,r0;
4750 stc gbr,rN;
4751 mov.l @(r0,r12),rM;
4752 bra 2f;
4753 add ...;
4754 .align 2;
4755 1: x@GOTTPOFF;
4756 2:
3376eaf5 4757 We change it into:
a05b9f5e
NC
4758 mov.l .Ln,rM;
4759 stc gbr,rN;
4760 nop;
4761 ...;
4762 1: x@TPOFF;
4763 2:. */
3376eaf5
KK
4764
4765 offset = rel->r_offset;
a05b9f5e
NC
4766 if (offset < 16)
4767 {
4768 _bfd_error_handler
4769 /* xgettext:c-format */
4770 (_("%pB(%pA): offset in relocation for IE->LE translation is too small: %#" PRIx64),
4771 input_bfd, input_section, (uint64_t) offset);
4772 return FALSE;
4773 }
4774
3376eaf5
KK
4775 /* Size of IE instructions is 10 or 12. */
4776 offset -= 10;
4777 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4778 if ((insn & 0xf0ff) == 0x0012)
4779 {
4780 BFD_ASSERT (offset >= 2);
4781 offset -= 2;
4782 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4783 }
4784
a05b9f5e
NC
4785 if ((insn & 0xff00) != 0xd000)
4786 _bfd_error_handler
4787 /* xgettext:c-format */
4788 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd0??: mov.l)"),
4789 input_bfd, input_section, (uint64_t) offset, (int) insn);
4790
91d6fa6a 4791 target = insn & 0x00ff;
a05b9f5e 4792
3376eaf5 4793 insn = bfd_get_16 (input_bfd, contents + offset + 2);
a05b9f5e
NC
4794 if ((insn & 0xf0ff) != 0x0012)
4795 _bfd_error_handler
4796 /* xgettext:c-format */
4797 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?12: stc)"),
4798 input_bfd, input_section, (uint64_t) (offset + 2), (int) insn);
4799
3376eaf5 4800 insn = bfd_get_16 (input_bfd, contents + offset + 4);
a05b9f5e
NC
4801 if ((insn & 0xf0ff) != 0x00ce)
4802 _bfd_error_handler
4803 /* xgettext:c-format */
4804 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?ce: mov.l)"),
4805 input_bfd, input_section, (uint64_t) (offset + 4), (int) insn);
4806
91d6fa6a 4807 insn = 0xd000 | (insn & 0x0f00) | target;
3376eaf5
KK
4808 bfd_put_16 (output_bfd, insn, contents + offset + 0);
4809 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
4810 }
4811
267fb3c1
KK
4812 bfd_put_32 (output_bfd, tpoff (info, relocation),
4813 contents + rel->r_offset);
3376eaf5
KK
4814 continue;
4815 }
4816
8e45593f 4817 if (sgot == NULL || sgotplt == NULL)
3376eaf5
KK
4818 abort ();
4819
4820 if (h != NULL)
4821 off = h->got.offset;
4822 else
4823 {
4824 if (local_got_offsets == NULL)
4825 abort ();
4826
4827 off = local_got_offsets[r_symndx];
4828 }
4829
267fb3c1
KK
4830 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
4831 if (r_type == R_SH_TLS_IE_32
4832 && ! htab->root.dynamic_sections_created)
4833 {
4834 off &= ~1;
4835 bfd_put_32 (output_bfd, tpoff (info, relocation),
4836 sgot->contents + off);
8e45593f 4837 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
267fb3c1
KK
4838 contents + rel->r_offset);
4839 continue;
4840 }
4841
3376eaf5
KK
4842 if ((off & 1) != 0)
4843 off &= ~1;
26e41594 4844 else
3376eaf5
KK
4845 {
4846 Elf_Internal_Rela outrel;
947216bf 4847 bfd_byte *loc;
3376eaf5
KK
4848 int dr_type, indx;
4849
3376eaf5
KK
4850 outrel.r_offset = (sgot->output_section->vma
4851 + sgot->output_offset + off);
4852
267fb3c1 4853 if (h == NULL || h->dynindx == -1)
c95b8a7a
KK
4854 indx = 0;
4855 else
4856 indx = h->dynindx;
267fb3c1 4857
3376eaf5
KK
4858 dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
4859 R_SH_TLS_TPOFF32);
4860 if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
4861 outrel.r_addend = relocation - dtpoff_base (info);
4862 else
4863 outrel.r_addend = 0;
4864 outrel.r_info = ELF32_R_INFO (indx, dr_type);
947216bf
AM
4865 loc = srelgot->contents;
4866 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3376eaf5
KK
4867 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4868
4869 if (r_type == R_SH_TLS_GD_32)
4870 {
4871 if (indx == 0)
4872 {
4873 bfd_put_32 (output_bfd,
4874 relocation - dtpoff_base (info),
4875 sgot->contents + off + 4);
4876 }
4877 else
4878 {
4879 outrel.r_info = ELF32_R_INFO (indx,
4880 R_SH_TLS_DTPOFF32);
4881 outrel.r_offset += 4;
4882 outrel.r_addend = 0;
4883 srelgot->reloc_count++;
947216bf
AM
4884 loc += sizeof (Elf32_External_Rela);
4885 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3376eaf5
KK
4886 }
4887 }
4888
4889 if (h != NULL)
4890 h->got.offset |= 1;
4891 else
4892 local_got_offsets[r_symndx] |= 1;
4893 }
4894
4895 if (off >= (bfd_vma) -2)
4896 abort ();
4897
4898 if (r_type == (int) ELF32_R_TYPE (rel->r_info))
8e45593f 4899 relocation = sh_elf_got_offset (htab) + off;
3376eaf5
KK
4900 else
4901 {
4902 bfd_vma offset;
4903 unsigned short insn;
4904
4905 /* GD->IE transition:
4906 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4907 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4908 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4909 We change it into:
4910 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
4911 nop; nop; bra 3f; nop; .align 2;
4912 1: .long x@TPOFF; 2:...; 3:. */
4913
4914 offset = rel->r_offset;
a05b9f5e
NC
4915 if (offset < 16)
4916 {
4917 _bfd_error_handler
4918 /* xgettext:c-format */
4919 (_("%pB(%pA): offset in relocation for GD->IE translation is too small: %#" PRIx64),
4920 input_bfd, input_section, (uint64_t) offset);
4921 return FALSE;
4922 }
4923
3376eaf5
KK
4924 /* Size of GD instructions is 16 or 18. */
4925 offset -= 16;
4926 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4927 if ((insn & 0xff00) == 0xc700)
4928 {
4929 BFD_ASSERT (offset >= 2);
4930 offset -= 2;
4931 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4932 }
4933
4934 BFD_ASSERT ((insn & 0xff00) == 0xd400);
4935
4936 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
4937 bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset);
4938
4939 insn = bfd_get_16 (input_bfd, contents + offset + 2);
4940 BFD_ASSERT ((insn & 0xff00) == 0xc700);
4941 insn = bfd_get_16 (input_bfd, contents + offset + 4);
4942 BFD_ASSERT ((insn & 0xff00) == 0xd100);
4943 insn = bfd_get_16 (input_bfd, contents + offset + 6);
4944 BFD_ASSERT (insn == 0x310c);
4945 insn = bfd_get_16 (input_bfd, contents + offset + 8);
4946 BFD_ASSERT (insn == 0x410b);
4947 insn = bfd_get_16 (input_bfd, contents + offset + 10);
4948 BFD_ASSERT (insn == 0x34cc);
4949
4950 bfd_put_16 (output_bfd, 0x0412, contents + offset + 2);
4951 bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4);
4952 bfd_put_16 (output_bfd, 0x304c, contents + offset + 6);
4953 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4954 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4955
8e45593f 4956 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
3376eaf5
KK
4957 contents + rel->r_offset);
4958
4959 continue;
4960 }
4961
4962 addend = rel->r_addend;
4963
4964 goto final_link_relocate;
4965
4966 case R_SH_TLS_LD_32:
e0af1f53 4967 BFD_ASSERT (htab);
8e45593f 4968 check_segment[0] = check_segment[1] = -1;
0e1862bb 4969 if (! bfd_link_pic (info))
3376eaf5
KK
4970 {
4971 bfd_vma offset;
4972 unsigned short insn;
4973
4974 /* LD->LE transition:
4975 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4976 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4977 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
4978 We change it into:
4979 stc gbr,r0; nop; nop; nop;
4980 nop; nop; bra 3f; ...; 3:. */
4981
4982 offset = rel->r_offset;
a05b9f5e
NC
4983 if (offset < 16)
4984 {
4985 _bfd_error_handler
4986 /* xgettext:c-format */
4987 (_("%pB(%pA): offset in relocation for LD->LE translation is too small: %#" PRIx64),
4988 input_bfd, input_section, (uint64_t) offset);
4989 return FALSE;
4990 }
4991
3376eaf5
KK
4992 /* Size of LD instructions is 16 or 18. */
4993 offset -= 16;
4994 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4995 if ((insn & 0xff00) == 0xc700)
4996 {
4997 BFD_ASSERT (offset >= 2);
4998 offset -= 2;
4999 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5000 }
5001
5002 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5003 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5004 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5005 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5006 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5007 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5008 BFD_ASSERT (insn == 0x310c);
5009 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5010 BFD_ASSERT (insn == 0x410b);
5011 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5012 BFD_ASSERT (insn == 0x34cc);
5013
5014 bfd_put_16 (output_bfd, 0x0012, contents + offset + 0);
5015 bfd_put_16 (output_bfd, 0x0009, contents + offset + 2);
5016 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
5017 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
5018 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5019 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5020
5021 continue;
5022 }
5023
8e45593f 5024 if (sgot == NULL || sgotplt == NULL)
3376eaf5
KK
5025 abort ();
5026
5027 off = htab->tls_ldm_got.offset;
5028 if (off & 1)
5029 off &= ~1;
5030 else
5031 {
5032 Elf_Internal_Rela outrel;
947216bf 5033 bfd_byte *loc;
3376eaf5 5034
3376eaf5
KK
5035 outrel.r_offset = (sgot->output_section->vma
5036 + sgot->output_offset + off);
5037 outrel.r_addend = 0;
5038 outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32);
947216bf
AM
5039 loc = srelgot->contents;
5040 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3376eaf5
KK
5041 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5042 htab->tls_ldm_got.offset |= 1;
5043 }
5044
8e45593f 5045 relocation = sh_elf_got_offset (htab) + off;
3376eaf5
KK
5046 addend = rel->r_addend;
5047
5048 goto final_link_relocate;
5049
5050 case R_SH_TLS_LDO_32:
8e45593f 5051 check_segment[0] = check_segment[1] = -1;
0e1862bb 5052 if (! bfd_link_pic (info))
267fb3c1 5053 relocation = tpoff (info, relocation);
3376eaf5
KK
5054 else
5055 relocation -= dtpoff_base (info);
5056
5057 addend = rel->r_addend;
5058 goto final_link_relocate;
5059
5060 case R_SH_TLS_LE_32:
5061 {
5062 int indx;
5063 Elf_Internal_Rela outrel;
947216bf 5064 bfd_byte *loc;
3376eaf5 5065
8e45593f
NC
5066 check_segment[0] = check_segment[1] = -1;
5067
3cbc1e5e 5068 if (!bfd_link_dll (info))
267fb3c1
KK
5069 {
5070 relocation = tpoff (info, relocation);
5071 addend = rel->r_addend;
5072 goto final_link_relocate;
5073 }
5074
3376eaf5
KK
5075 if (sreloc == NULL)
5076 {
83bac4b0
NC
5077 sreloc = _bfd_elf_get_dynamic_reloc_section
5078 (input_bfd, input_section, /*rela?*/ TRUE);
5079 if (sreloc == NULL)
b34976b6 5080 return FALSE;
3376eaf5
KK
5081 }
5082
267fb3c1
KK
5083 if (h == NULL || h->dynindx == -1)
5084 indx = 0;
5085 else
5086 indx = h->dynindx;
5087
3376eaf5
KK
5088 outrel.r_offset = (input_section->output_section->vma
5089 + input_section->output_offset
5090 + rel->r_offset);
5091 outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
5092 if (indx == 0)
5093 outrel.r_addend = relocation - dtpoff_base (info);
5094 else
5095 outrel.r_addend = 0;
3376eaf5 5096
947216bf
AM
5097 loc = sreloc->contents;
5098 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5099 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3376eaf5
KK
5100 continue;
5101 }
37c644f2
AO
5102 }
5103
146be91a 5104 relocation_done:
e0af1f53 5105 if (fdpic_p && check_segment[0] != (unsigned) -1
8e45593f
NC
5106 && check_segment[0] != check_segment[1])
5107 {
5108 /* We don't want duplicate errors for undefined symbols. */
5109 if (!h || h->root.type != bfd_link_hash_undefined)
5110 {
0e1862bb 5111 if (bfd_link_pic (info))
8e45593f
NC
5112 {
5113 info->callbacks->einfo
695344c0 5114 /* xgettext:c-format */
8e45593f
NC
5115 (_("%X%C: relocation to \"%s\" references a different segment\n"),
5116 input_bfd, input_section, rel->r_offset, symname);
5117 return FALSE;
5118 }
5119 else
5120 info->callbacks->einfo
695344c0 5121 /* xgettext:c-format */
8e45593f
NC
5122 (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5123 input_bfd, input_section, rel->r_offset, symname);
5124 }
5125
fbedb42d 5126 elf_elfheader (output_bfd)->e_flags |= EF_SH_PIC;
8e45593f
NC
5127 }
5128
37c644f2
AO
5129 if (r != bfd_reloc_ok)
5130 {
5131 switch (r)
5132 {
5133 default:
5134 case bfd_reloc_outofrange:
5135 abort ();
5136 case bfd_reloc_overflow:
5137 {
5138 const char *name;
5139
5140 if (h != NULL)
dfeffb9f 5141 name = NULL;
37c644f2
AO
5142 else
5143 {
252b5132
RH
5144 name = (bfd_elf_string_from_elf_section
5145 (input_bfd, symtab_hdr->sh_link, sym->st_name));
5146 if (name == NULL)
b34976b6 5147 return FALSE;
252b5132 5148 if (*name == '\0')
fd361982 5149 name = bfd_section_name (sec);
252b5132 5150 }
1a72702b
AM
5151 (*info->callbacks->reloc_overflow)
5152 (info, (h ? &h->root : NULL), name, howto->name,
5153 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
252b5132
RH
5154 }
5155 break;
5156 }
5157 }
5158 }
5159
b34976b6 5160 return TRUE;
252b5132
RH
5161}
5162
5163/* This is a version of bfd_generic_get_relocated_section_contents
5164 which uses sh_elf_relocate_section. */
5165
5166static bfd_byte *
09fd220b
KK
5167sh_elf_get_relocated_section_contents (bfd *output_bfd,
5168 struct bfd_link_info *link_info,
5169 struct bfd_link_order *link_order,
5170 bfd_byte *data,
5171 bfd_boolean relocatable,
5172 asymbol **symbols)
252b5132
RH
5173{
5174 Elf_Internal_Shdr *symtab_hdr;
5175 asection *input_section = link_order->u.indirect.section;
5176 bfd *input_bfd = input_section->owner;
5177 asection **sections = NULL;
5178 Elf_Internal_Rela *internal_relocs = NULL;
6cdc0ccc 5179 Elf_Internal_Sym *isymbuf = NULL;
252b5132
RH
5180
5181 /* We only need to handle the case of relaxing, or of having a
5182 particular set of section contents, specially. */
1049f94e 5183 if (relocatable
252b5132
RH
5184 || elf_section_data (input_section)->this_hdr.contents == NULL)
5185 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
5186 link_order, data,
1049f94e 5187 relocatable,
252b5132
RH
5188 symbols);
5189
0ffa91dd 5190 symtab_hdr = &elf_symtab_hdr (input_bfd);
252b5132
RH
5191
5192 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
eea6121a 5193 (size_t) input_section->size);
252b5132
RH
5194
5195 if ((input_section->flags & SEC_RELOC) != 0
5196 && input_section->reloc_count > 0)
5197 {
252b5132 5198 asection **secpp;
6cdc0ccc 5199 Elf_Internal_Sym *isym, *isymend;
9ad5cbcf 5200 bfd_size_type amt;
252b5132 5201
45d6a902 5202 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 5203 (input_bfd, input_section, NULL,
b34976b6 5204 (Elf_Internal_Rela *) NULL, FALSE));
252b5132
RH
5205 if (internal_relocs == NULL)
5206 goto error_return;
5207
6cdc0ccc
AM
5208 if (symtab_hdr->sh_info != 0)
5209 {
5210 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5211 if (isymbuf == NULL)
5212 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
5213 symtab_hdr->sh_info, 0,
5214 NULL, NULL, NULL);
5215 if (isymbuf == NULL)
5216 goto error_return;
5217 }
252b5132 5218
9ad5cbcf
AM
5219 amt = symtab_hdr->sh_info;
5220 amt *= sizeof (asection *);
5221 sections = (asection **) bfd_malloc (amt);
5222 if (sections == NULL && amt != 0)
252b5132
RH
5223 goto error_return;
5224
6cdc0ccc
AM
5225 isymend = isymbuf + symtab_hdr->sh_info;
5226 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
252b5132
RH
5227 {
5228 asection *isec;
5229
6cdc0ccc 5230 if (isym->st_shndx == SHN_UNDEF)
252b5132 5231 isec = bfd_und_section_ptr;
6cdc0ccc 5232 else if (isym->st_shndx == SHN_ABS)
252b5132 5233 isec = bfd_abs_section_ptr;
6cdc0ccc 5234 else if (isym->st_shndx == SHN_COMMON)
252b5132
RH
5235 isec = bfd_com_section_ptr;
5236 else
6cdc0ccc 5237 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
252b5132
RH
5238
5239 *secpp = isec;
5240 }
5241
5242 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5243 input_section, data, internal_relocs,
6cdc0ccc 5244 isymbuf, sections))
252b5132
RH
5245 goto error_return;
5246
c9594989
AM
5247 free (sections);
5248 if (symtab_hdr->contents != (unsigned char *) isymbuf)
6cdc0ccc
AM
5249 free (isymbuf);
5250 if (elf_section_data (input_section)->relocs != internal_relocs)
252b5132 5251 free (internal_relocs);
252b5132
RH
5252 }
5253
5254 return data;
5255
5256 error_return:
c9594989
AM
5257 free (sections);
5258 if (symtab_hdr->contents != (unsigned char *) isymbuf)
6cdc0ccc 5259 free (isymbuf);
c9594989 5260 if (elf_section_data (input_section)->relocs != internal_relocs)
6cdc0ccc 5261 free (internal_relocs);
252b5132
RH
5262 return NULL;
5263}
917583ad 5264
3376eaf5
KK
5265/* Return the base VMA address which should be subtracted from real addresses
5266 when resolving @dtpoff relocation.
5267 This is PT_TLS segment p_vaddr. */
5268
5269static bfd_vma
09fd220b 5270dtpoff_base (struct bfd_link_info *info)
3376eaf5 5271{
e1918d23
AM
5272 /* If tls_sec is NULL, we should have signalled an error already. */
5273 if (elf_hash_table (info)->tls_sec == NULL)
267fb3c1 5274 return 0;
e1918d23 5275 return elf_hash_table (info)->tls_sec->vma;
3376eaf5
KK
5276}
5277
267fb3c1
KK
5278/* Return the relocation value for R_SH_TLS_TPOFF32.. */
5279
5280static bfd_vma
09fd220b 5281tpoff (struct bfd_link_info *info, bfd_vma address)
267fb3c1 5282{
e1918d23
AM
5283 /* If tls_sec is NULL, we should have signalled an error already. */
5284 if (elf_hash_table (info)->tls_sec == NULL)
267fb3c1
KK
5285 return 0;
5286 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5287 structure which has 2 pointer fields. */
044ad7e3
KK
5288 return (address - elf_hash_table (info)->tls_sec->vma
5289 + align_power ((bfd_vma) 8,
5290 elf_hash_table (info)->tls_sec->alignment_power));
267fb3c1
KK
5291}
5292
252b5132 5293static asection *
09fd220b 5294sh_elf_gc_mark_hook (asection *sec,
07adf181
AM
5295 struct bfd_link_info *info,
5296 Elf_Internal_Rela *rel,
5297 struct elf_link_hash_entry *h,
09fd220b 5298 Elf_Internal_Sym *sym)
252b5132
RH
5299{
5300 if (h != NULL)
07adf181
AM
5301 switch (ELF32_R_TYPE (rel->r_info))
5302 {
5303 case R_SH_GNU_VTINHERIT:
5304 case R_SH_GNU_VTENTRY:
5305 return NULL;
5306 }
9ad5cbcf 5307
07adf181 5308 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH
5309}
5310
067653c5
AM
5311/* Copy the extra info we tack onto an elf_link_hash_entry. */
5312
5313static void
fcfa13d2 5314sh_elf_copy_indirect_symbol (struct bfd_link_info *info,
09fd220b
KK
5315 struct elf_link_hash_entry *dir,
5316 struct elf_link_hash_entry *ind)
067653c5
AM
5317{
5318 struct elf_sh_link_hash_entry *edir, *eind;
5319
5320 edir = (struct elf_sh_link_hash_entry *) dir;
5321 eind = (struct elf_sh_link_hash_entry *) ind;
5322
190eb1dd 5323 if (ind->dyn_relocs != NULL)
067653c5 5324 {
190eb1dd 5325 if (dir->dyn_relocs != NULL)
067653c5 5326 {
3bf083ed
AM
5327 struct elf_dyn_relocs **pp;
5328 struct elf_dyn_relocs *p;
067653c5 5329
fcfa13d2 5330 /* Add reloc counts against the indirect sym to the direct sym
067653c5 5331 list. Merge any entries against the same section. */
190eb1dd 5332 for (pp = &ind->dyn_relocs; (p = *pp) != NULL; )
067653c5 5333 {
3bf083ed 5334 struct elf_dyn_relocs *q;
067653c5 5335
190eb1dd 5336 for (q = dir->dyn_relocs; q != NULL; q = q->next)
067653c5
AM
5337 if (q->sec == p->sec)
5338 {
5339 q->pc_count += p->pc_count;
5340 q->count += p->count;
5341 *pp = p->next;
5342 break;
5343 }
5344 if (q == NULL)
5345 pp = &p->next;
5346 }
190eb1dd 5347 *pp = dir->dyn_relocs;
067653c5
AM
5348 }
5349
190eb1dd
L
5350 dir->dyn_relocs = ind->dyn_relocs;
5351 ind->dyn_relocs = NULL;
067653c5 5352 }
4989d792
SC
5353 edir->gotplt_refcount = eind->gotplt_refcount;
5354 eind->gotplt_refcount = 0;
8e45593f 5355 edir->funcdesc.refcount += eind->funcdesc.refcount;
68ffbac6 5356 eind->funcdesc.refcount = 0;
8e45593f 5357 edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount;
68ffbac6 5358 eind->abs_funcdesc_refcount = 0;
067653c5 5359
3376eaf5
KK
5360 if (ind->root.type == bfd_link_hash_indirect
5361 && dir->got.refcount <= 0)
5362 {
8e45593f
NC
5363 edir->got_type = eind->got_type;
5364 eind->got_type = GOT_UNKNOWN;
3376eaf5
KK
5365 }
5366
04e534c3 5367 if (ind->root.type != bfd_link_hash_indirect
f5385ebf
AM
5368 && dir->dynamic_adjusted)
5369 {
5370 /* If called to transfer flags for a weakdef during processing
5371 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
5372 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
e81830c5
AM
5373 if (dir->versioned != versioned_hidden)
5374 dir->ref_dynamic |= ind->ref_dynamic;
f5385ebf
AM
5375 dir->ref_regular |= ind->ref_regular;
5376 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
5377 dir->needs_plt |= ind->needs_plt;
5378 }
04e534c3 5379 else
fcfa13d2 5380 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
067653c5
AM
5381}
5382
3376eaf5 5383static int
09fd220b
KK
5384sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
5385 int is_local)
3376eaf5 5386{
0e1862bb 5387 if (bfd_link_pic (info))
3376eaf5
KK
5388 return r_type;
5389
5390 switch (r_type)
5391 {
5392 case R_SH_TLS_GD_32:
5393 case R_SH_TLS_IE_32:
5394 if (is_local)
5395 return R_SH_TLS_LE_32;
5396 return R_SH_TLS_IE_32;
5397 case R_SH_TLS_LD_32:
5398 return R_SH_TLS_LE_32;
5399 }
5400
5401 return r_type;
5402}
5403
252b5132
RH
5404/* Look through the relocs for a section during the first phase.
5405 Since we don't do .gots or .plts, we just need to consider the
5406 virtual table relocs for gc. */
435b1e90 5407
b34976b6 5408static bfd_boolean
09fd220b
KK
5409sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
5410 const Elf_Internal_Rela *relocs)
252b5132
RH
5411{
5412 Elf_Internal_Shdr *symtab_hdr;
5582a088 5413 struct elf_link_hash_entry **sym_hashes;
067653c5 5414 struct elf_sh_link_hash_table *htab;
252b5132
RH
5415 const Elf_Internal_Rela *rel;
5416 const Elf_Internal_Rela *rel_end;
37c644f2 5417 asection *sreloc;
3376eaf5 5418 unsigned int r_type;
85e02784 5419 enum got_type got_type, old_got_type;
435b1e90 5420
37c644f2
AO
5421 sreloc = NULL;
5422
0e1862bb 5423 if (bfd_link_relocatable (info))
b34976b6 5424 return TRUE;
435b1e90 5425
65281396
AM
5426 /* Don't do anything special with non-loaded, non-alloced sections.
5427 In particular, any relocs in such sections should not affect GOT
5428 and PLT reference counting (ie. we don't allow them to create GOT
5429 or PLT entries), there's no possibility or desire to optimize TLS
5430 relocs, and there's not much point in propagating relocs to shared
5431 libs that the dynamic linker won't relocate. */
5432 if ((sec->flags & SEC_ALLOC) == 0)
5433 return TRUE;
5434
0ffa91dd
NC
5435 BFD_ASSERT (is_sh_elf (abfd));
5436
5437 symtab_hdr = &elf_symtab_hdr (abfd);
252b5132 5438 sym_hashes = elf_sym_hashes (abfd);
435b1e90 5439
067653c5 5440 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
5441 if (htab == NULL)
5442 return FALSE;
5443
252b5132
RH
5444 rel_end = relocs + sec->reloc_count;
5445 for (rel = relocs; rel < rel_end; rel++)
5446 {
5447 struct elf_link_hash_entry *h;
5448 unsigned long r_symndx;
435b1e90 5449
252b5132 5450 r_symndx = ELF32_R_SYM (rel->r_info);
3376eaf5
KK
5451 r_type = ELF32_R_TYPE (rel->r_info);
5452
252b5132 5453 if (r_symndx < symtab_hdr->sh_info)
435b1e90 5454 h = NULL;
252b5132 5455 else
396a6083
SC
5456 {
5457 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
396a6083
SC
5458 while (h->root.type == bfd_link_hash_indirect
5459 || h->root.type == bfd_link_hash_warning)
211dc24b 5460 h = (struct elf_link_hash_entry *) h->root.u.i.link;
396a6083 5461 }
435b1e90 5462
3376eaf5 5463 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
0e1862bb 5464 if (! bfd_link_pic (info)
3376eaf5
KK
5465 && r_type == R_SH_TLS_IE_32
5466 && h != NULL
5467 && h->root.type != bfd_link_hash_undefined
5468 && h->root.type != bfd_link_hash_undefweak
5469 && (h->dynindx == -1
f5385ebf 5470 || h->def_regular))
3376eaf5
KK
5471 r_type = R_SH_TLS_LE_32;
5472
8e45593f
NC
5473 if (htab->fdpic_p)
5474 switch (r_type)
5475 {
5476 case R_SH_GOTOFFFUNCDESC:
5477 case R_SH_GOTOFFFUNCDESC20:
5478 case R_SH_FUNCDESC:
5479 case R_SH_GOTFUNCDESC:
5480 case R_SH_GOTFUNCDESC20:
5481 if (h != NULL)
5482 {
5483 if (h->dynindx == -1)
5484 switch (ELF_ST_VISIBILITY (h->other))
5485 {
5486 case STV_INTERNAL:
5487 case STV_HIDDEN:
5488 break;
5489 default:
5490 bfd_elf_link_record_dynamic_symbol (info, h);
5491 break;
5492 }
5493 }
5494 break;
5495 }
5496
37c644f2 5497 /* Some relocs require a global offset table. */
ce558b89 5498 if (htab->root.sgot == NULL)
37c644f2 5499 {
3376eaf5 5500 switch (r_type)
37c644f2 5501 {
8e45593f
NC
5502 case R_SH_DIR32:
5503 /* This may require an rofixup. */
5504 if (!htab->fdpic_p)
5505 break;
1a0670f3 5506 /* Fall through. */
fbca6ad9 5507 case R_SH_GOTPLT32:
37c644f2 5508 case R_SH_GOT32:
8e45593f 5509 case R_SH_GOT20:
37c644f2 5510 case R_SH_GOTOFF:
8e45593f
NC
5511 case R_SH_GOTOFF20:
5512 case R_SH_FUNCDESC:
5513 case R_SH_GOTFUNCDESC:
5514 case R_SH_GOTFUNCDESC20:
5515 case R_SH_GOTOFFFUNCDESC:
5516 case R_SH_GOTOFFFUNCDESC20:
37c644f2 5517 case R_SH_GOTPC:
3376eaf5
KK
5518 case R_SH_TLS_GD_32:
5519 case R_SH_TLS_LD_32:
5520 case R_SH_TLS_IE_32:
8e45593f
NC
5521 if (htab->root.dynobj == NULL)
5522 htab->root.dynobj = abfd;
5523 if (!create_got_section (htab->root.dynobj, info))
5524 return FALSE;
37c644f2
AO
5525 break;
5526
5527 default:
5528 break;
5529 }
5530 }
5531
3376eaf5 5532 switch (r_type)
067653c5
AM
5533 {
5534 /* This relocation describes the C++ object vtable hierarchy.
5535 Reconstruct it for later use during GC. */
435b1e90 5536 case R_SH_GNU_VTINHERIT:
c152c796 5537 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 5538 return FALSE;
435b1e90
KH
5539 break;
5540
067653c5
AM
5541 /* This relocation describes which C++ vtable entries are actually
5542 used. Record for later use during GC. */
435b1e90 5543 case R_SH_GNU_VTENTRY:
a0ea3a14 5544 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 5545 return FALSE;
435b1e90 5546 break;
37c644f2 5547
3376eaf5 5548 case R_SH_TLS_IE_32:
0e1862bb 5549 if (bfd_link_pic (info))
3376eaf5
KK
5550 info->flags |= DF_STATIC_TLS;
5551
5552 /* FALLTHROUGH */
267fb3c1 5553 force_got:
3376eaf5 5554 case R_SH_TLS_GD_32:
37c644f2 5555 case R_SH_GOT32:
8e45593f 5556 case R_SH_GOT20:
8e45593f
NC
5557 case R_SH_GOTFUNCDESC:
5558 case R_SH_GOTFUNCDESC20:
3376eaf5
KK
5559 switch (r_type)
5560 {
5561 default:
8e45593f 5562 got_type = GOT_NORMAL;
3376eaf5
KK
5563 break;
5564 case R_SH_TLS_GD_32:
8e45593f 5565 got_type = GOT_TLS_GD;
3376eaf5
KK
5566 break;
5567 case R_SH_TLS_IE_32:
8e45593f
NC
5568 got_type = GOT_TLS_IE;
5569 break;
5570 case R_SH_GOTFUNCDESC:
5571 case R_SH_GOTFUNCDESC20:
5572 got_type = GOT_FUNCDESC;
3376eaf5
KK
5573 break;
5574 }
5575
37c644f2 5576 if (h != NULL)
3376eaf5 5577 {
211dc24b 5578 h->got.refcount += 1;
8e45593f 5579 old_got_type = sh_elf_hash_entry (h)->got_type;
3376eaf5 5580 }
37c644f2
AO
5581 else
5582 {
067653c5
AM
5583 bfd_signed_vma *local_got_refcounts;
5584
435b1e90 5585 /* This is a global offset table entry for a local
067653c5
AM
5586 symbol. */
5587 local_got_refcounts = elf_local_got_refcounts (abfd);
5588 if (local_got_refcounts == NULL)
37c644f2 5589 {
dc810e39 5590 bfd_size_type size;
37c644f2 5591
dc810e39 5592 size = symtab_hdr->sh_info;
067653c5 5593 size *= sizeof (bfd_signed_vma);
3376eaf5 5594 size += symtab_hdr->sh_info;
067653c5
AM
5595 local_got_refcounts = ((bfd_signed_vma *)
5596 bfd_zalloc (abfd, size));
5597 if (local_got_refcounts == NULL)
b34976b6 5598 return FALSE;
067653c5 5599 elf_local_got_refcounts (abfd) = local_got_refcounts;
8e45593f 5600 sh_elf_local_got_type (abfd)
3376eaf5 5601 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
37c644f2 5602 }
211dc24b 5603 local_got_refcounts[r_symndx] += 1;
8e45593f 5604 old_got_type = sh_elf_local_got_type (abfd) [r_symndx];
3376eaf5
KK
5605 }
5606
5607 /* If a TLS symbol is accessed using IE at least once,
5608 there is no point to use dynamic model for it. */
8e45593f
NC
5609 if (old_got_type != got_type && old_got_type != GOT_UNKNOWN
5610 && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE))
3376eaf5 5611 {
8e45593f
NC
5612 if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD)
5613 got_type = GOT_TLS_IE;
3376eaf5
KK
5614 else
5615 {
8e45593f
NC
5616 if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC)
5617 && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL))
4eca0228 5618 _bfd_error_handler
695344c0 5619 /* xgettext:c-format */
871b3ab2 5620 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
8e45593f
NC
5621 abfd, h->root.root.string);
5622 else if (old_got_type == GOT_FUNCDESC
5623 || got_type == GOT_FUNCDESC)
4eca0228 5624 _bfd_error_handler
695344c0 5625 /* xgettext:c-format */
871b3ab2 5626 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
8e45593f
NC
5627 abfd, h->root.root.string);
5628 else
4eca0228 5629 _bfd_error_handler
695344c0 5630 /* xgettext:c-format */
871b3ab2 5631 (_("%pB: `%s' accessed both as normal and thread local symbol"),
4eca0228 5632 abfd, h->root.root.string);
b34976b6 5633 return FALSE;
3376eaf5
KK
5634 }
5635 }
5636
8e45593f 5637 if (old_got_type != got_type)
3376eaf5
KK
5638 {
5639 if (h != NULL)
8e45593f 5640 sh_elf_hash_entry (h)->got_type = got_type;
3376eaf5 5641 else
8e45593f 5642 sh_elf_local_got_type (abfd) [r_symndx] = got_type;
37c644f2 5643 }
3376eaf5
KK
5644
5645 break;
5646
5647 case R_SH_TLS_LD_32:
5648 sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
37c644f2
AO
5649 break;
5650
8e45593f
NC
5651 case R_SH_FUNCDESC:
5652 case R_SH_GOTOFFFUNCDESC:
5653 case R_SH_GOTOFFFUNCDESC20:
5654 if (rel->r_addend)
5655 {
4eca0228 5656 _bfd_error_handler
871b3ab2 5657 (_("%pB: Function descriptor relocation with non-zero addend"),
8e45593f
NC
5658 abfd);
5659 return FALSE;
5660 }
5661
5662 if (h == NULL)
5663 {
5664 union gotref *local_funcdesc;
5665
5666 /* We need a function descriptor for a local symbol. */
5667 local_funcdesc = sh_elf_local_funcdesc (abfd);
5668 if (local_funcdesc == NULL)
5669 {
5670 bfd_size_type size;
5671
5672 size = symtab_hdr->sh_info * sizeof (union gotref);
8e45593f
NC
5673 local_funcdesc = (union gotref *) bfd_zalloc (abfd, size);
5674 if (local_funcdesc == NULL)
5675 return FALSE;
5676 sh_elf_local_funcdesc (abfd) = local_funcdesc;
5677 }
5678 local_funcdesc[r_symndx].refcount += 1;
5679
5680 if (r_type == R_SH_FUNCDESC)
5681 {
0e1862bb 5682 if (!bfd_link_pic (info))
8e45593f
NC
5683 htab->srofixup->size += 4;
5684 else
ce558b89 5685 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f
NC
5686 }
5687 }
5688 else
5689 {
5690 sh_elf_hash_entry (h)->funcdesc.refcount++;
5691 if (r_type == R_SH_FUNCDESC)
5692 sh_elf_hash_entry (h)->abs_funcdesc_refcount++;
5693
5694 /* If there is a function descriptor reference, then
5695 there should not be any non-FDPIC references. */
5696 old_got_type = sh_elf_hash_entry (h)->got_type;
5697 if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN)
5698 {
5699 if (old_got_type == GOT_NORMAL)
4eca0228 5700 _bfd_error_handler
695344c0 5701 /* xgettext:c-format */
871b3ab2 5702 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
8e45593f
NC
5703 abfd, h->root.root.string);
5704 else
4eca0228 5705 _bfd_error_handler
695344c0 5706 /* xgettext:c-format */
871b3ab2 5707 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
8e45593f
NC
5708 abfd, h->root.root.string);
5709 }
5710 }
5711 break;
5712
fbca6ad9 5713 case R_SH_GOTPLT32:
fbca6ad9
AO
5714 /* If this is a local symbol, we resolve it directly without
5715 creating a procedure linkage table entry. */
5716
5717 if (h == NULL
f5385ebf 5718 || h->forced_local
0e1862bb 5719 || ! bfd_link_pic (info)
fbca6ad9 5720 || info->symbolic
067653c5 5721 || h->dynindx == -1)
fbca6ad9
AO
5722 goto force_got;
5723
f5385ebf 5724 h->needs_plt = 1;
067653c5 5725 h->plt.refcount += 1;
4989d792 5726 ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
fbca6ad9
AO
5727
5728 break;
5729
37c644f2
AO
5730 case R_SH_PLT32:
5731 /* This symbol requires a procedure linkage table entry. We
5732 actually build the entry in adjust_dynamic_symbol,
5733 because this might be a case of linking PIC code which is
5734 never referenced by a dynamic object, in which case we
5735 don't need to generate a procedure linkage table entry
5736 after all. */
5737
5738 /* If this is a local symbol, we resolve it directly without
5739 creating a procedure linkage table entry. */
5740 if (h == NULL)
5741 continue;
5742
f5385ebf 5743 if (h->forced_local)
37c644f2
AO
5744 break;
5745
f5385ebf 5746 h->needs_plt = 1;
067653c5 5747 h->plt.refcount += 1;
37c644f2
AO
5748 break;
5749
5750 case R_SH_DIR32:
5751 case R_SH_REL32:
0e1862bb 5752 if (h != NULL && ! bfd_link_pic (info))
067653c5 5753 {
f5385ebf 5754 h->non_got_ref = 1;
067653c5
AM
5755 h->plt.refcount += 1;
5756 }
37c644f2
AO
5757
5758 /* If we are creating a shared library, and this is a reloc
5759 against a global symbol, or a non PC relative reloc
5760 against a local symbol, then we need to copy the reloc
5761 into the shared library. However, if we are linking with
5762 -Bsymbolic, we do not need to copy a reloc against a
5763 global symbol which is defined in an object we are
5764 including in the link (i.e., DEF_REGULAR is set). At
5765 this point we have not seen all the input files, so it is
5766 possible that DEF_REGULAR is not set now but will be set
5767 later (it is never cleared). We account for that
5768 possibility below by storing information in the
067653c5
AM
5769 dyn_relocs field of the hash table entry. A similar
5770 situation occurs when creating shared libraries and symbol
5771 visibility changes render the symbol local.
5772
5773 If on the other hand, we are creating an executable, we
5774 may need to keep relocations for symbols satisfied by a
5775 dynamic library if we manage to avoid copy relocs for the
5776 symbol. */
0e1862bb 5777 if ((bfd_link_pic (info)
067653c5 5778 && (sec->flags & SEC_ALLOC) != 0
3376eaf5 5779 && (r_type != R_SH_REL32
067653c5
AM
5780 || (h != NULL
5781 && (! info->symbolic
5782 || h->root.type == bfd_link_hash_defweak
f5385ebf 5783 || !h->def_regular))))
0e1862bb 5784 || (! bfd_link_pic (info)
067653c5
AM
5785 && (sec->flags & SEC_ALLOC) != 0
5786 && h != NULL
5787 && (h->root.type == bfd_link_hash_defweak
f5385ebf 5788 || !h->def_regular)))
37c644f2 5789 {
3bf083ed
AM
5790 struct elf_dyn_relocs *p;
5791 struct elf_dyn_relocs **head;
067653c5 5792
2293c499
AM
5793 if (htab->root.dynobj == NULL)
5794 htab->root.dynobj = abfd;
067653c5 5795
37c644f2
AO
5796 /* When creating a shared object, we must copy these
5797 reloc types into the output file. We create a reloc
5798 section in dynobj and make room for this reloc. */
5799 if (sreloc == NULL)
5800 {
83bac4b0
NC
5801 sreloc = _bfd_elf_make_dynamic_reloc_section
5802 (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE);
37c644f2 5803
37c644f2 5804 if (sreloc == NULL)
83bac4b0 5805 return FALSE;
37c644f2
AO
5806 }
5807
067653c5
AM
5808 /* If this is a global symbol, we count the number of
5809 relocations we need for this symbol. */
5810 if (h != NULL)
190eb1dd 5811 head = &h->dyn_relocs;
067653c5 5812 else
37c644f2 5813 {
87d72d41 5814 /* Track dynamic relocs needed for local syms too. */
067653c5 5815 asection *s;
6edfbbad 5816 void *vpp;
87d72d41 5817 Elf_Internal_Sym *isym;
37c644f2 5818
87d72d41
AM
5819 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5820 abfd, r_symndx);
5821 if (isym == NULL)
b34976b6 5822 return FALSE;
37c644f2 5823
87d72d41
AM
5824 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5825 if (s == NULL)
5826 s = sec;
5827
6edfbbad 5828 vpp = &elf_section_data (s)->local_dynrel;
3bf083ed 5829 head = (struct elf_dyn_relocs **) vpp;
067653c5 5830 }
37c644f2 5831
067653c5
AM
5832 p = *head;
5833 if (p == NULL || p->sec != sec)
5834 {
986f0783 5835 size_t amt = sizeof (*p);
2293c499 5836 p = bfd_alloc (htab->root.dynobj, amt);
37c644f2 5837 if (p == NULL)
b34976b6 5838 return FALSE;
067653c5
AM
5839 p->next = *head;
5840 *head = p;
5841 p->sec = sec;
5842 p->count = 0;
5843 p->pc_count = 0;
37c644f2 5844 }
067653c5
AM
5845
5846 p->count += 1;
211dc24b 5847 if (r_type == R_SH_REL32)
067653c5 5848 p->pc_count += 1;
37c644f2
AO
5849 }
5850
8e45593f
NC
5851 /* Allocate the fixup regardless of whether we need a relocation.
5852 If we end up generating the relocation, we'll unallocate the
5853 fixup. */
0e1862bb 5854 if (htab->fdpic_p && !bfd_link_pic (info)
8e45593f
NC
5855 && r_type == R_SH_DIR32
5856 && (sec->flags & SEC_ALLOC) != 0)
5857 htab->srofixup->size += 4;
37c644f2 5858 break;
3376eaf5
KK
5859
5860 case R_SH_TLS_LE_32:
3cbc1e5e 5861 if (bfd_link_dll (info))
3376eaf5 5862 {
4eca0228 5863 _bfd_error_handler
871b3ab2 5864 (_("%pB: TLS local exec code cannot be linked into shared objects"),
d003868e 5865 abfd);
b34976b6 5866 return FALSE;
3376eaf5
KK
5867 }
5868
267fb3c1 5869 break;
3376eaf5 5870
3376eaf5 5871 case R_SH_TLS_LDO_32:
267fb3c1 5872 /* Nothing to do. */
3376eaf5
KK
5873 break;
5874
5875 default:
5876 break;
435b1e90 5877 }
252b5132 5878 }
435b1e90 5879
b34976b6 5880 return TRUE;
252b5132
RH
5881}
5882
fbca6ad9 5883#ifndef sh_elf_set_mach_from_flags
f6f9408f
JR
5884static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
5885
b34976b6 5886static bfd_boolean
09fd220b 5887sh_elf_set_mach_from_flags (bfd *abfd)
d4845d57 5888{
f6f9408f
JR
5889 flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
5890
f461bbd8 5891 if (flags >= ARRAY_SIZE (sh_ef_bfd_table))
f6f9408f
JR
5892 return FALSE;
5893
5894 if (sh_ef_bfd_table[flags] == 0)
5895 return FALSE;
68ffbac6 5896
f6f9408f 5897 bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
d4845d57 5898
b34976b6 5899 return TRUE;
d4845d57 5900}
f6f9408f
JR
5901
5902
5903/* Reverse table lookup for sh_ef_bfd_table[].
5904 Given a bfd MACH value from archures.c
5905 return the equivalent ELF flags from the table.
5906 Return -1 if no match is found. */
5907
5908int
5909sh_elf_get_flags_from_mach (unsigned long mach)
5910{
4195f552 5911 int i = ARRAY_SIZE (sh_ef_bfd_table) - 1;
68ffbac6 5912
f6f9408f
JR
5913 for (; i>0; i--)
5914 if (sh_ef_bfd_table[i] == mach)
5915 return i;
68ffbac6 5916
f6f9408f
JR
5917 /* shouldn't get here */
5918 BFD_FAIL();
5919
5920 return -1;
5921}
fbca6ad9 5922#endif /* not sh_elf_set_mach_from_flags */
d4845d57 5923
fbca6ad9 5924#ifndef sh_elf_copy_private_data
d4845d57 5925/* Copy backend specific data from one object module to another */
435b1e90 5926
b34976b6 5927static bfd_boolean
09fd220b 5928sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
d4845d57 5929{
0ffa91dd
NC
5930 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
5931 return TRUE;
5932
e2349352
L
5933 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
5934 return FALSE;
5935
5936 return sh_elf_set_mach_from_flags (obfd);
d4845d57 5937}
fbca6ad9 5938#endif /* not sh_elf_copy_private_data */
d4845d57 5939
fbca6ad9 5940#ifndef sh_elf_merge_private_data
d4845d57 5941
f6f9408f
JR
5942/* This function returns the ELF architecture number that
5943 corresponds to the given arch_sh* flags. */
85fbca6a 5944
f6f9408f
JR
5945int
5946sh_find_elf_flags (unsigned int arch_set)
d4845d57 5947{
85fbca6a 5948 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
f6f9408f 5949 unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
d4845d57 5950
f6f9408f
JR
5951 return sh_elf_get_flags_from_mach (bfd_mach);
5952}
f6f9408f 5953
1047201f
AM
5954/* Merge the architecture type of two BFD files, such that the
5955 resultant architecture supports all the features required
5956 by the two input BFDs.
5957 If the input BFDs are multually incompatible - i.e. one uses
5958 DSP while the other uses FPU - or there is no known architecture
5959 that fits the requirements then an error is emitted. */
5960
5961static bfd_boolean
50e03d47 5962sh_merge_bfd_arch (bfd *ibfd, struct bfd_link_info *info)
1047201f 5963{
50e03d47 5964 bfd *obfd = info->output_bfd;
1047201f
AM
5965 unsigned int old_arch, new_arch, merged_arch;
5966
50e03d47 5967 if (! _bfd_generic_verify_endian_match (ibfd, info))
1047201f
AM
5968 return FALSE;
5969
5970 old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd));
5971 new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd));
5972
5973 merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch);
5974
5975 if (!SH_VALID_CO_ARCH_SET (merged_arch))
5976 {
5977 _bfd_error_handler
695344c0 5978 /* xgettext:c-format */
871b3ab2 5979 (_("%pB: uses %s instructions while previous modules "
695344c0 5980 "use %s instructions"),
1047201f
AM
5981 ibfd,
5982 SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point",
5983 SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp");
5984 bfd_set_error (bfd_error_bad_value);
5985 return FALSE;
5986 }
5987 else if (!SH_VALID_ARCH_SET (merged_arch))
5988 {
5989 _bfd_error_handler
695344c0
NC
5990 /* xgettext:c-format */
5991 (_("internal error: merge of architecture '%s' with "
5992 "architecture '%s' produced unknown architecture"),
1047201f
AM
5993 bfd_printable_name (obfd),
5994 bfd_printable_name (ibfd));
5995 bfd_set_error (bfd_error_bad_value);
5996 return FALSE;
5997 }
5998
5999 bfd_default_set_arch_mach (obfd, bfd_arch_sh,
6000 sh_get_bfd_mach_from_arch_set (merged_arch));
6001
6002 return TRUE;
6003}
6004
f6f9408f
JR
6005/* This routine initialises the elf flags when required and
6006 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
d4845d57 6007
f6f9408f 6008static bfd_boolean
50e03d47 6009sh_elf_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
f6f9408f 6010{
50e03d47 6011 bfd *obfd = info->output_bfd;
85fbca6a 6012
6b728d32
AM
6013 /* FIXME: What should be checked when linking shared libraries? */
6014 if ((ibfd->flags & DYNAMIC) != 0)
6015 return TRUE;
6016
0ffa91dd 6017 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
b34976b6 6018 return TRUE;
d4845d57
JR
6019
6020 if (! elf_flags_init (obfd))
6021 {
a39b79b9 6022 /* This happens when ld starts out with a 'blank' output file. */
b34976b6 6023 elf_flags_init (obfd) = TRUE;
8e45593f 6024 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
f6f9408f 6025 sh_elf_set_mach_from_flags (obfd);
8e45593f 6026 if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC)
fbedb42d 6027 elf_elfheader (obfd)->e_flags &= ~EF_SH_PIC;
d4845d57 6028 }
d4845d57 6029
50e03d47 6030 if (! sh_merge_bfd_arch (ibfd, info))
1d70c7fb 6031 {
871b3ab2 6032 _bfd_error_handler (_("%pB: uses instructions which are incompatible "
695344c0 6033 "with instructions used in previous modules"),
d003868e 6034 ibfd);
1d70c7fb
AO
6035 bfd_set_error (bfd_error_bad_value);
6036 return FALSE;
6037 }
f6f9408f 6038
8e45593f
NC
6039 elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK;
6040 elf_elfheader (obfd)->e_flags |=
f6f9408f 6041 sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
8e45593f
NC
6042
6043 if (fdpic_object_p (ibfd) != fdpic_object_p (obfd))
6044 {
871b3ab2 6045 _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"),
8e45593f
NC
6046 ibfd);
6047 bfd_set_error (bfd_error_bad_value);
6048 return FALSE;
6049 }
6050
f6f9408f 6051 return TRUE;
d4845d57 6052}
fbca6ad9 6053#endif /* not sh_elf_merge_private_data */
d4845d57 6054
3376eaf5
KK
6055/* Override the generic function because we need to store sh_elf_obj_tdata
6056 as the specific tdata. We set also the machine architecture from flags
6057 here. */
6058
b34976b6 6059static bfd_boolean
09fd220b 6060sh_elf_object_p (bfd *abfd)
3376eaf5 6061{
8e45593f
NC
6062 if (! sh_elf_set_mach_from_flags (abfd))
6063 return FALSE;
6064
6065 return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0)
6066 == fdpic_object_p (abfd));
3376eaf5
KK
6067}
6068
37c644f2
AO
6069/* Finish up dynamic symbol handling. We set the contents of various
6070 dynamic sections here. */
6071
b34976b6 6072static bfd_boolean
09fd220b
KK
6073sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
6074 struct elf_link_hash_entry *h,
6075 Elf_Internal_Sym *sym)
37c644f2 6076{
067653c5 6077 struct elf_sh_link_hash_table *htab;
37c644f2 6078
067653c5 6079 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
6080 if (htab == NULL)
6081 return FALSE;
37c644f2
AO
6082
6083 if (h->plt.offset != (bfd_vma) -1)
6084 {
6085 asection *splt;
8e45593f
NC
6086 asection *sgotplt;
6087 asection *srelplt;
37c644f2
AO
6088
6089 bfd_vma plt_index;
6090 bfd_vma got_offset;
6091 Elf_Internal_Rela rel;
947216bf 6092 bfd_byte *loc;
8e45593f 6093 const struct elf_sh_plt_info *plt_info;
37c644f2
AO
6094
6095 /* This symbol has an entry in the procedure linkage table. Set
6096 it up. */
6097
6098 BFD_ASSERT (h->dynindx != -1);
6099
ce558b89
AM
6100 splt = htab->root.splt;
6101 sgotplt = htab->root.sgotplt;
6102 srelplt = htab->root.srelplt;
8e45593f 6103 BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL);
37c644f2
AO
6104
6105 /* Get the index in the procedure linkage table which
6106 corresponds to this symbol. This is the index of this symbol
6107 in all the symbols for which we are making plt entries. The
6108 first entry in the procedure linkage table is reserved. */
55e6e397 6109 plt_index = get_plt_index (htab->plt_info, h->plt.offset);
37c644f2 6110
8e45593f
NC
6111 plt_info = htab->plt_info;
6112 if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT)
6113 plt_info = plt_info->short_plt;
6114
37c644f2 6115 /* Get the offset into the .got table of the entry that
8e45593f
NC
6116 corresponds to this function. */
6117 if (htab->fdpic_p)
6118 /* The offset must be relative to the GOT symbol, twelve bytes
6119 before the end of .got.plt. Each descriptor is eight
6120 bytes. */
6121 got_offset = plt_index * 8 + 12 - sgotplt->size;
6122 else
6123 /* Each .got entry is 4 bytes. The first three are
6124 reserved. */
6125 got_offset = (plt_index + 3) * 4;
37c644f2 6126
fbca6ad9 6127#ifdef GOT_BIAS
0e1862bb 6128 if (bfd_link_pic (info))
c8614e8e 6129 got_offset -= GOT_BIAS;
fbca6ad9
AO
6130#endif
6131
37c644f2 6132 /* Fill in the entry in the procedure linkage table. */
55e6e397 6133 memcpy (splt->contents + h->plt.offset,
8e45593f
NC
6134 plt_info->symbol_entry,
6135 plt_info->symbol_entry_size);
55e6e397 6136
0e1862bb 6137 if (bfd_link_pic (info) || htab->fdpic_p)
8e45593f
NC
6138 {
6139 if (plt_info->symbol_fields.got20)
6140 {
6141 bfd_reloc_status_type r;
6142 r = install_movi20_field (output_bfd, got_offset,
6143 splt->owner, splt, splt->contents,
6144 h->plt.offset
6145 + plt_info->symbol_fields.got_entry);
6146 BFD_ASSERT (r == bfd_reloc_ok);
6147 }
6148 else
6149 install_plt_field (output_bfd, FALSE, got_offset,
6150 (splt->contents
6151 + h->plt.offset
6152 + plt_info->symbol_fields.got_entry));
6153 }
55e6e397 6154 else
37c644f2 6155 {
8e45593f
NC
6156 BFD_ASSERT (!plt_info->symbol_fields.got20);
6157
55e6e397 6158 install_plt_field (output_bfd, FALSE,
8e45593f
NC
6159 (sgotplt->output_section->vma
6160 + sgotplt->output_offset
fbca6ad9 6161 + got_offset),
55e6e397
RS
6162 (splt->contents
6163 + h->plt.offset
8e45593f 6164 + plt_info->symbol_fields.got_entry));
55e6e397 6165 if (htab->vxworks_p)
37c644f2 6166 {
55e6e397
RS
6167 unsigned int reachable_plts, plts_per_4k;
6168 int distance;
6169
6170 /* Divide the PLT into groups. The first group contains
6171 REACHABLE_PLTS entries and the other groups contain
6172 PLTS_PER_4K entries. Entries in the first group can
6173 branch directly to .plt; those in later groups branch
6174 to the last element of the previous group. */
6175 /* ??? It would be better to create multiple copies of
6176 the common resolver stub. */
6177 reachable_plts = ((4096
8e45593f
NC
6178 - plt_info->plt0_entry_size
6179 - (plt_info->symbol_fields.plt + 4))
6180 / plt_info->symbol_entry_size) + 1;
6181 plts_per_4k = (4096 / plt_info->symbol_entry_size);
55e6e397
RS
6182 if (plt_index < reachable_plts)
6183 distance = -(h->plt.offset
8e45593f 6184 + plt_info->symbol_fields.plt);
55e6e397
RS
6185 else
6186 distance = -(((plt_index - reachable_plts) % plts_per_4k + 1)
8e45593f 6187 * plt_info->symbol_entry_size);
55e6e397
RS
6188
6189 /* Install the 'bra' with this offset. */
6190 bfd_put_16 (output_bfd,
6191 0xa000 | (0x0fff & ((distance - 4) / 2)),
6192 (splt->contents
6193 + h->plt.offset
8e45593f 6194 + plt_info->symbol_fields.plt));
37c644f2 6195 }
55e6e397
RS
6196 else
6197 install_plt_field (output_bfd, TRUE,
6198 splt->output_section->vma + splt->output_offset,
6199 (splt->contents
6200 + h->plt.offset
8e45593f 6201 + plt_info->symbol_fields.plt));
37c644f2
AO
6202 }
6203
8e45593f 6204 /* Make got_offset relative to the start of .got.plt. */
fbca6ad9 6205#ifdef GOT_BIAS
0e1862bb 6206 if (bfd_link_pic (info))
c8614e8e 6207 got_offset += GOT_BIAS;
fbca6ad9 6208#endif
8e45593f
NC
6209 if (htab->fdpic_p)
6210 got_offset = plt_index * 8;
fbca6ad9 6211
8e45593f
NC
6212 if (plt_info->symbol_fields.reloc_offset != MINUS_ONE)
6213 install_plt_field (output_bfd, FALSE,
6214 plt_index * sizeof (Elf32_External_Rela),
6215 (splt->contents
6216 + h->plt.offset
6217 + plt_info->symbol_fields.reloc_offset));
37c644f2
AO
6218
6219 /* Fill in the entry in the global offset table. */
6220 bfd_put_32 (output_bfd,
6221 (splt->output_section->vma
6222 + splt->output_offset
6223 + h->plt.offset
8e45593f
NC
6224 + plt_info->symbol_resolve_offset),
6225 sgotplt->contents + got_offset);
6226 if (htab->fdpic_p)
6227 bfd_put_32 (output_bfd,
ce558b89 6228 sh_elf_osec_to_segment (output_bfd, splt->output_section),
8e45593f 6229 sgotplt->contents + got_offset + 4);
37c644f2
AO
6230
6231 /* Fill in the entry in the .rela.plt section. */
8e45593f
NC
6232 rel.r_offset = (sgotplt->output_section->vma
6233 + sgotplt->output_offset
37c644f2 6234 + got_offset);
8e45593f
NC
6235 if (htab->fdpic_p)
6236 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE);
6237 else
6238 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
37c644f2 6239 rel.r_addend = 0;
fbca6ad9
AO
6240#ifdef GOT_BIAS
6241 rel.r_addend = GOT_BIAS;
6242#endif
8e45593f 6243 loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
947216bf 6244 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2 6245
0e1862bb 6246 if (htab->vxworks_p && !bfd_link_pic (info))
55e6e397
RS
6247 {
6248 /* Create the .rela.plt.unloaded relocations for this PLT entry.
6249 Begin by pointing LOC to the first such relocation. */
6250 loc = (htab->srelplt2->contents
6251 + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela));
6252
6253 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
6254 for the PLT entry's pointer to the .got.plt entry. */
ce558b89
AM
6255 rel.r_offset = (splt->output_section->vma
6256 + splt->output_offset
55e6e397 6257 + h->plt.offset
8e45593f 6258 + plt_info->symbol_fields.got_entry);
55e6e397
RS
6259 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6260 rel.r_addend = got_offset;
6261 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6262 loc += sizeof (Elf32_External_Rela);
6263
6264 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
6265 the .got.plt entry, which initially points to .plt. */
8e45593f
NC
6266 rel.r_offset = (sgotplt->output_section->vma
6267 + sgotplt->output_offset
55e6e397
RS
6268 + got_offset);
6269 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32);
6270 rel.r_addend = 0;
6271 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6272 }
6273
f5385ebf 6274 if (!h->def_regular)
37c644f2
AO
6275 {
6276 /* Mark the symbol as undefined, rather than as defined in
6277 the .plt section. Leave the value alone. */
6278 sym->st_shndx = SHN_UNDEF;
6279 }
6280 }
6281
3376eaf5 6282 if (h->got.offset != (bfd_vma) -1
8e45593f
NC
6283 && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD
6284 && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE
6285 && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC)
37c644f2
AO
6286 {
6287 asection *sgot;
8e45593f 6288 asection *srelgot;
37c644f2 6289 Elf_Internal_Rela rel;
947216bf 6290 bfd_byte *loc;
37c644f2
AO
6291
6292 /* This symbol has an entry in the global offset table. Set it
6293 up. */
6294
ce558b89
AM
6295 sgot = htab->root.sgot;
6296 srelgot = htab->root.srelgot;
8e45593f 6297 BFD_ASSERT (sgot != NULL && srelgot != NULL);
37c644f2
AO
6298
6299 rel.r_offset = (sgot->output_section->vma
6300 + sgot->output_offset
dc810e39 6301 + (h->got.offset &~ (bfd_vma) 1));
37c644f2 6302
067653c5
AM
6303 /* If this is a static link, or it is a -Bsymbolic link and the
6304 symbol is defined locally or was forced to be local because
6305 of a version file, we just want to emit a RELATIVE reloc.
37c644f2
AO
6306 The entry in the global offset table will already have been
6307 initialized in the relocate_section function. */
0e1862bb 6308 if (bfd_link_pic (info)
3d85aebe 6309 && SYMBOL_REFERENCES_LOCAL (info, h))
37c644f2 6310 {
8e45593f
NC
6311 if (htab->fdpic_p)
6312 {
6313 asection *sec = h->root.u.def.section;
6314 int dynindx
6315 = elf_section_data (sec->output_section)->dynindx;
6316
6317 rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
6318 rel.r_addend = (h->root.u.def.value
6319 + h->root.u.def.section->output_offset);
6320 }
6321 else
6322 {
6323 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
6324 rel.r_addend = (h->root.u.def.value
6325 + h->root.u.def.section->output_section->vma
6326 + h->root.u.def.section->output_offset);
6327 }
37c644f2
AO
6328 }
6329 else
6330 {
6331 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
6332 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
6333 rel.r_addend = 0;
6334 }
6335
8e45593f
NC
6336 loc = srelgot->contents;
6337 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
947216bf 6338 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2
AO
6339 }
6340
f5385ebf 6341 if (h->needs_copy)
37c644f2
AO
6342 {
6343 asection *s;
6344 Elf_Internal_Rela rel;
947216bf 6345 bfd_byte *loc;
37c644f2
AO
6346
6347 /* This symbol needs a copy reloc. Set it up. */
6348
6349 BFD_ASSERT (h->dynindx != -1
6350 && (h->root.type == bfd_link_hash_defined
6351 || h->root.type == bfd_link_hash_defweak));
6352
3d4d4302 6353 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
37c644f2
AO
6354 BFD_ASSERT (s != NULL);
6355
6356 rel.r_offset = (h->root.u.def.value
6357 + h->root.u.def.section->output_section->vma
6358 + h->root.u.def.section->output_offset);
6359 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
6360 rel.r_addend = 0;
947216bf
AM
6361 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
6362 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2
AO
6363 }
6364
55e6e397
RS
6365 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
6366 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
6367 ".got" section. */
9637f6ef 6368 if (h == htab->root.hdynamic
55e6e397 6369 || (!htab->vxworks_p && h == htab->root.hgot))
37c644f2
AO
6370 sym->st_shndx = SHN_ABS;
6371
b34976b6 6372 return TRUE;
37c644f2
AO
6373}
6374
6375/* Finish up the dynamic sections. */
6376
b34976b6 6377static bfd_boolean
09fd220b 6378sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
37c644f2 6379{
067653c5 6380 struct elf_sh_link_hash_table *htab;
8e45593f 6381 asection *sgotplt;
37c644f2
AO
6382 asection *sdyn;
6383
067653c5 6384 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
6385 if (htab == NULL)
6386 return FALSE;
6387
ce558b89 6388 sgotplt = htab->root.sgotplt;
3d4d4302 6389 sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic");
37c644f2 6390
067653c5 6391 if (htab->root.dynamic_sections_created)
37c644f2
AO
6392 {
6393 asection *splt;
6394 Elf32_External_Dyn *dyncon, *dynconend;
6395
8e45593f 6396 BFD_ASSERT (sgotplt != NULL && sdyn != NULL);
37c644f2
AO
6397
6398 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 6399 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
37c644f2
AO
6400 for (; dyncon < dynconend; dyncon++)
6401 {
6402 Elf_Internal_Dyn dyn;
37c644f2
AO
6403 asection *s;
6404
2293c499 6405 bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
37c644f2
AO
6406
6407 switch (dyn.d_tag)
6408 {
6409 default:
7a2b07ff
NS
6410 if (htab->vxworks_p
6411 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
6412 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
37c644f2
AO
6413 break;
6414
6415 case DT_PLTGOT:
8e45593f
NC
6416 BFD_ASSERT (htab->root.hgot != NULL);
6417 s = htab->root.hgot->root.u.def.section;
6418 dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value
6419 + s->output_section->vma + s->output_offset;
6420 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6421 break;
37c644f2
AO
6422
6423 case DT_JMPREL:
ce558b89 6424 s = htab->root.srelplt->output_section;
37c644f2
AO
6425 BFD_ASSERT (s != NULL);
6426 dyn.d_un.d_ptr = s->vma;
6427 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6428 break;
6429
6430 case DT_PLTRELSZ:
ce558b89 6431 s = htab->root.srelplt->output_section;
37c644f2 6432 BFD_ASSERT (s != NULL);
eea6121a 6433 dyn.d_un.d_val = s->size;
37c644f2
AO
6434 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6435 break;
37c644f2
AO
6436 }
6437 }
6438
6439 /* Fill in the first entry in the procedure linkage table. */
ce558b89 6440 splt = htab->root.splt;
55e6e397 6441 if (splt && splt->size > 0 && htab->plt_info->plt0_entry)
37c644f2 6442 {
55e6e397
RS
6443 unsigned int i;
6444
6445 memcpy (splt->contents,
6446 htab->plt_info->plt0_entry,
6447 htab->plt_info->plt0_entry_size);
6448 for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++)
6449 if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE)
6450 install_plt_field (output_bfd, FALSE,
8e45593f
NC
6451 (sgotplt->output_section->vma
6452 + sgotplt->output_offset
55e6e397
RS
6453 + (i * 4)),
6454 (splt->contents
6455 + htab->plt_info->plt0_got_fields[i]));
6456
6457 if (htab->vxworks_p)
37c644f2 6458 {
55e6e397
RS
6459 /* Finalize the .rela.plt.unloaded contents. */
6460 Elf_Internal_Rela rel;
6461 bfd_byte *loc;
6462
6463 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
6464 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
6465 loc = htab->srelplt2->contents;
6466 rel.r_offset = (splt->output_section->vma
6467 + splt->output_offset
6468 + htab->plt_info->plt0_got_fields[2]);
6469 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6470 rel.r_addend = 8;
6471 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6472 loc += sizeof (Elf32_External_Rela);
6473
6474 /* Fix up the remaining .rela.plt.unloaded relocations.
6475 They may have the wrong symbol index for _G_O_T_ or
6476 _P_L_T_ depending on the order in which symbols were
6477 output. */
6478 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
37c644f2 6479 {
55e6e397
RS
6480 /* The PLT entry's pointer to the .got.plt slot. */
6481 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6482 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx,
6483 R_SH_DIR32);
6484 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6485 loc += sizeof (Elf32_External_Rela);
6486
6487 /* The .got.plt slot's pointer to .plt. */
6488 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6489 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx,
6490 R_SH_DIR32);
6491 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6492 loc += sizeof (Elf32_External_Rela);
37c644f2 6493 }
37c644f2
AO
6494 }
6495
6496 /* UnixWare sets the entsize of .plt to 4, although that doesn't
6497 really seem like the right value. */
6498 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
6499 }
6500 }
6501
6502 /* Fill in the first three entries in the global offset table. */
8e45593f 6503 if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p)
37c644f2
AO
6504 {
6505 if (sdyn == NULL)
8e45593f 6506 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents);
37c644f2
AO
6507 else
6508 bfd_put_32 (output_bfd,
6509 sdyn->output_section->vma + sdyn->output_offset,
8e45593f
NC
6510 sgotplt->contents);
6511 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4);
6512 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8);
6513 }
37c644f2 6514
8e45593f
NC
6515 if (sgotplt && sgotplt->size > 0)
6516 elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4;
68ffbac6 6517
8e45593f
NC
6518 /* At the very end of the .rofixup section is a pointer to the GOT. */
6519 if (htab->fdpic_p && htab->srofixup != NULL)
6520 {
6521 struct elf_link_hash_entry *hgot = htab->root.hgot;
6522 bfd_vma got_value = hgot->root.u.def.value
6523 + hgot->root.u.def.section->output_section->vma
6524 + hgot->root.u.def.section->output_offset;
6525
6526 sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value);
6527
6528 /* Make sure we allocated and generated the same number of fixups. */
6529 BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size);
067653c5 6530 }
37c644f2 6531
8e45593f
NC
6532 if (htab->srelfuncdesc)
6533 BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela)
6534 == htab->srelfuncdesc->size);
6535
ce558b89
AM
6536 if (htab->root.srelgot)
6537 BFD_ASSERT (htab->root.srelgot->reloc_count * sizeof (Elf32_External_Rela)
6538 == htab->root.srelgot->size);
8e45593f 6539
b34976b6 6540 return TRUE;
37c644f2
AO
6541}
6542
99e4ae17 6543static enum elf_reloc_type_class
7e612e98
AM
6544sh_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
6545 const asection *rel_sec ATTRIBUTE_UNUSED,
6546 const Elf_Internal_Rela *rela)
99e4ae17 6547{
f51e552e 6548 switch ((int) ELF32_R_TYPE (rela->r_info))
99e4ae17
AJ
6549 {
6550 case R_SH_RELATIVE:
6551 return reloc_class_relative;
6552 case R_SH_JMP_SLOT:
6553 return reloc_class_plt;
6554 case R_SH_COPY:
6555 return reloc_class_copy;
6556 default:
6557 return reloc_class_normal;
6558 }
6559}
6560
85fbca6a 6561#if !defined SH_TARGET_ALREADY_DEFINED
571fe01f 6562/* Support for Linux core dump NOTE sections. */
85fbca6a 6563
b34976b6 6564static bfd_boolean
09fd220b 6565elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2bc3c89a
AM
6566{
6567 int offset;
eea6121a 6568 unsigned int size;
2bc3c89a
AM
6569
6570 switch (note->descsz)
6571 {
6572 default:
b34976b6 6573 return FALSE;
2bc3c89a
AM
6574
6575 case 168: /* Linux/SH */
6576 /* pr_cursig */
228e534f 6577 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2bc3c89a
AM
6578
6579 /* pr_pid */
228e534f 6580 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2bc3c89a
AM
6581
6582 /* pr_reg */
6583 offset = 72;
eea6121a 6584 size = 92;
2bc3c89a
AM
6585
6586 break;
6587 }
6588
6589 /* Make a ".reg/999" section. */
6590 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 6591 size, note->descpos + offset);
2bc3c89a
AM
6592}
6593
b34976b6 6594static bfd_boolean
09fd220b 6595elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2bc3c89a
AM
6596{
6597 switch (note->descsz)
6598 {
6599 default:
b34976b6 6600 return FALSE;
2bc3c89a
AM
6601
6602 case 124: /* Linux/SH elf_prpsinfo */
228e534f 6603 elf_tdata (abfd)->core->program
2bc3c89a 6604 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 6605 elf_tdata (abfd)->core->command
2bc3c89a
AM
6606 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6607 }
6608
6609 /* Note that for some reason, a spurious space is tacked
6610 onto the end of the args in some (at least one anyway)
6611 implementations, so strip it off if it exists. */
6612
6613 {
228e534f 6614 char *command = elf_tdata (abfd)->core->command;
2bc3c89a
AM
6615 int n = strlen (command);
6616
6617 if (0 < n && command[n - 1] == ' ')
6618 command[n - 1] = '\0';
6619 }
6620
b34976b6 6621 return TRUE;
2bc3c89a 6622}
85fbca6a 6623#endif /* not SH_TARGET_ALREADY_DEFINED */
2bc3c89a 6624
68ffbac6 6625
1f1799d5
KK
6626/* Return address for Ith PLT stub in section PLT, for relocation REL
6627 or (bfd_vma) -1 if it should not be included. */
6628
6629static bfd_vma
6630sh_elf_plt_sym_val (bfd_vma i, const asection *plt,
6631 const arelent *rel ATTRIBUTE_UNUSED)
6632{
55e6e397
RS
6633 const struct elf_sh_plt_info *plt_info;
6634
6635 plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0);
6636 return plt->vma + get_plt_offset (plt_info, i);
1f1799d5
KK
6637}
6638
8e45593f
NC
6639/* Decide whether to attempt to turn absptr or lsda encodings in
6640 shared libraries into pcrel within the given input section. */
6641
6642static bfd_boolean
6643sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED,
6644 struct bfd_link_info *info,
6645 asection *eh_frame_section ATTRIBUTE_UNUSED)
6646{
6647 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6648
6649 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
6650 if (htab->fdpic_p)
6651 return FALSE;
6652
6653 return TRUE;
6654}
6655
6656/* Adjust the contents of an eh_frame_hdr section before they're output. */
6657
6658static bfd_byte
6659sh_elf_encode_eh_address (bfd *abfd,
6660 struct bfd_link_info *info,
6661 asection *osec, bfd_vma offset,
6662 asection *loc_sec, bfd_vma loc_offset,
6663 bfd_vma *encoded)
6664{
6665 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6666 struct elf_link_hash_entry *h;
6667
6668 if (!htab->fdpic_p)
6669 return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec,
6670 loc_offset, encoded);
6671
6672 h = htab->root.hgot;
6673 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6674
6675 if (! h || (sh_elf_osec_to_segment (abfd, osec)
6676 == sh_elf_osec_to_segment (abfd, loc_sec->output_section)))
6677 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6678 loc_sec, loc_offset, encoded);
6679
6680 BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec)
6681 == (sh_elf_osec_to_segment
6682 (abfd, h->root.u.def.section->output_section)));
6683
6684 *encoded = osec->vma + offset
6685 - (h->root.u.def.value
6686 + h->root.u.def.section->output_section->vma
6687 + h->root.u.def.section->output_offset);
6688
6689 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6690}
6691
85fbca6a 6692#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590 6693#define TARGET_BIG_SYM sh_elf32_vec
252b5132 6694#define TARGET_BIG_NAME "elf32-sh"
6d00b590 6695#define TARGET_LITTLE_SYM sh_elf32_le_vec
252b5132 6696#define TARGET_LITTLE_NAME "elf32-shl"
85fbca6a
NC
6697#endif
6698
252b5132 6699#define ELF_ARCH bfd_arch_sh
ae95ffa6 6700#define ELF_TARGET_ID SH_ELF_DATA
252b5132 6701#define ELF_MACHINE_CODE EM_SH
d0facd1b
NC
6702#ifdef __QNXTARGET__
6703#define ELF_MAXPAGESIZE 0x1000
6704#else
6705#define ELF_MAXPAGESIZE 0x80
6706#endif
252b5132
RH
6707
6708#define elf_symbol_leading_char '_'
6709
6710#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
157090f7
AM
6711#define bfd_elf32_bfd_reloc_name_lookup \
6712 sh_elf_reloc_name_lookup
252b5132
RH
6713#define elf_info_to_howto sh_elf_info_to_howto
6714#define bfd_elf32_bfd_relax_section sh_elf_relax_section
6715#define elf_backend_relocate_section sh_elf_relocate_section
6716#define bfd_elf32_bfd_get_relocated_section_contents \
6717 sh_elf_get_relocated_section_contents
3376eaf5
KK
6718#define bfd_elf32_mkobject sh_elf_mkobject
6719#define elf_backend_object_p sh_elf_object_p
d4845d57
JR
6720#define bfd_elf32_bfd_copy_private_bfd_data \
6721 sh_elf_copy_private_data
875f7f69 6722#define bfd_elf32_bfd_merge_private_bfd_data \
d4845d57 6723 sh_elf_merge_private_data
252b5132 6724
067653c5 6725#define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
067653c5
AM
6726#define elf_backend_check_relocs sh_elf_check_relocs
6727#define elf_backend_copy_indirect_symbol \
6728 sh_elf_copy_indirect_symbol
37c644f2
AO
6729#define elf_backend_create_dynamic_sections \
6730 sh_elf_create_dynamic_sections
6731#define bfd_elf32_bfd_link_hash_table_create \
6732 sh_elf_link_hash_table_create
6733#define elf_backend_adjust_dynamic_symbol \
6734 sh_elf_adjust_dynamic_symbol
55e6e397
RS
6735#define elf_backend_always_size_sections \
6736 sh_elf_always_size_sections
37c644f2
AO
6737#define elf_backend_size_dynamic_sections \
6738 sh_elf_size_dynamic_sections
8e45593f 6739#define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
37c644f2
AO
6740#define elf_backend_finish_dynamic_symbol \
6741 sh_elf_finish_dynamic_symbol
6742#define elf_backend_finish_dynamic_sections \
6743 sh_elf_finish_dynamic_sections
99e4ae17 6744#define elf_backend_reloc_type_class sh_elf_reloc_type_class
1f1799d5 6745#define elf_backend_plt_sym_val sh_elf_plt_sym_val
8e45593f
NC
6746#define elf_backend_can_make_relative_eh_frame \
6747 sh_elf_use_relative_eh_frame
6748#define elf_backend_can_make_lsda_relative_eh_frame \
6749 sh_elf_use_relative_eh_frame
6750#define elf_backend_encode_eh_address \
6751 sh_elf_encode_eh_address
37c644f2 6752
04c3a755 6753#define elf_backend_stack_align 8
067653c5
AM
6754#define elf_backend_can_gc_sections 1
6755#define elf_backend_can_refcount 1
37c644f2
AO
6756#define elf_backend_want_got_plt 1
6757#define elf_backend_plt_readonly 1
6758#define elf_backend_want_plt_sym 0
6759#define elf_backend_got_header_size 12
64f52338 6760#define elf_backend_dtrel_excludes_plt 1
ed71e111 6761
a2f63b2e
MR
6762#define elf_backend_linux_prpsinfo32_ugid16 TRUE
6763
211dc24b 6764#if !defined SH_TARGET_ALREADY_DEFINED
2bc3c89a 6765
252b5132 6766#include "elf32-target.h"
ed71e111 6767
2bc3c89a
AM
6768/* NetBSD support. */
6769#undef TARGET_BIG_SYM
6d00b590 6770#define TARGET_BIG_SYM sh_elf32_nbsd_vec
2bc3c89a
AM
6771#undef TARGET_BIG_NAME
6772#define TARGET_BIG_NAME "elf32-sh-nbsd"
6773#undef TARGET_LITTLE_SYM
6d00b590 6774#define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec
2bc3c89a
AM
6775#undef TARGET_LITTLE_NAME
6776#define TARGET_LITTLE_NAME "elf32-shl-nbsd"
6777#undef ELF_MAXPAGESIZE
6778#define ELF_MAXPAGESIZE 0x10000
24718e3b 6779#undef ELF_COMMONPAGESIZE
2bc3c89a
AM
6780#undef elf_symbol_leading_char
6781#define elf_symbol_leading_char 0
571fe01f 6782#undef elf32_bed
2bc3c89a
AM
6783#define elf32_bed elf32_sh_nbsd_bed
6784
6785#include "elf32-target.h"
6786
2bc3c89a
AM
6787
6788/* Linux support. */
6789#undef TARGET_BIG_SYM
6d00b590 6790#define TARGET_BIG_SYM sh_elf32_linux_be_vec
2bc3c89a
AM
6791#undef TARGET_BIG_NAME
6792#define TARGET_BIG_NAME "elf32-shbig-linux"
6793#undef TARGET_LITTLE_SYM
6d00b590 6794#define TARGET_LITTLE_SYM sh_elf32_linux_vec
2bc3c89a
AM
6795#undef TARGET_LITTLE_NAME
6796#define TARGET_LITTLE_NAME "elf32-sh-linux"
24718e3b
L
6797#undef ELF_COMMONPAGESIZE
6798#define ELF_COMMONPAGESIZE 0x1000
2bc3c89a
AM
6799
6800#undef elf_backend_grok_prstatus
6801#define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
6802#undef elf_backend_grok_psinfo
6803#define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
571fe01f 6804#undef elf32_bed
2bc3c89a
AM
6805#define elf32_bed elf32_sh_lin_bed
6806
6807#include "elf32-target.h"
6808
8e45593f
NC
6809
6810/* FDPIC support. */
6811#undef TARGET_BIG_SYM
6d00b590 6812#define TARGET_BIG_SYM sh_elf32_fdpic_be_vec
8e45593f
NC
6813#undef TARGET_BIG_NAME
6814#define TARGET_BIG_NAME "elf32-shbig-fdpic"
6815#undef TARGET_LITTLE_SYM
6d00b590 6816#define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec
8e45593f
NC
6817#undef TARGET_LITTLE_NAME
6818#define TARGET_LITTLE_NAME "elf32-sh-fdpic"
8e45593f
NC
6819
6820#undef elf32_bed
6821#define elf32_bed elf32_sh_fd_bed
6822
6823#include "elf32-target.h"
6824
8e45593f 6825/* VxWorks support. */
55e6e397 6826#undef TARGET_BIG_SYM
6d00b590 6827#define TARGET_BIG_SYM sh_elf32_vxworks_vec
55e6e397
RS
6828#undef TARGET_BIG_NAME
6829#define TARGET_BIG_NAME "elf32-sh-vxworks"
6830#undef TARGET_LITTLE_SYM
6d00b590 6831#define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec
55e6e397
RS
6832#undef TARGET_LITTLE_NAME
6833#define TARGET_LITTLE_NAME "elf32-shl-vxworks"
6834#undef elf32_bed
6835#define elf32_bed elf32_sh_vxworks_bed
6836
6837#undef elf_backend_want_plt_sym
6838#define elf_backend_want_plt_sym 1
6839#undef elf_symbol_leading_char
6840#define elf_symbol_leading_char '_'
6841#define elf_backend_want_got_underscore 1
6842#undef elf_backend_grok_prstatus
6843#undef elf_backend_grok_psinfo
6844#undef elf_backend_add_symbol_hook
6845#define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
6846#undef elf_backend_link_output_symbol_hook
6847#define elf_backend_link_output_symbol_hook \
6848 elf_vxworks_link_output_symbol_hook
6849#undef elf_backend_emit_relocs
6850#define elf_backend_emit_relocs elf_vxworks_emit_relocs
6851#undef elf_backend_final_write_processing
6852#define elf_backend_final_write_processing \
6853 elf_vxworks_final_write_processing
6854#undef ELF_MAXPAGESIZE
6855#define ELF_MAXPAGESIZE 0x1000
6856#undef ELF_COMMONPAGESIZE
6857
6858#include "elf32-target.h"
6859
211dc24b 6860#endif /* not SH_TARGET_ALREADY_DEFINED */
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