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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
37c644f2
AO
2479/* Adjust a symbol defined by a dynamic object and referenced by a
2480 regular object. The current definition is in some section of the
2481 dynamic object, but we're not including those sections. We have to
2482 change the definition to something the rest of the link can
2483 understand. */
2484
b34976b6 2485static bfd_boolean
09fd220b
KK
2486sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2487 struct elf_link_hash_entry *h)
37c644f2 2488{
067653c5 2489 struct elf_sh_link_hash_table *htab;
37c644f2 2490 asection *s;
37c644f2 2491
2293c499 2492 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2493 if (htab == NULL)
2494 return FALSE;
37c644f2
AO
2495
2496 /* Make sure we know what is going on here. */
2293c499 2497 BFD_ASSERT (htab->root.dynobj != NULL
f5385ebf 2498 && (h->needs_plt
60d67dc8 2499 || h->is_weakalias
f5385ebf
AM
2500 || (h->def_dynamic
2501 && h->ref_regular
2502 && !h->def_regular)));
37c644f2
AO
2503
2504 /* If this is a function, put it in the procedure linkage table. We
2505 will fill in the contents of the procedure linkage table later,
2506 when we know the address of the .got section. */
2507 if (h->type == STT_FUNC
f5385ebf 2508 || h->needs_plt)
37c644f2 2509 {
067653c5 2510 if (h->plt.refcount <= 0
3d85aebe
KK
2511 || SYMBOL_CALLS_LOCAL (info, h)
2512 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2513 && h->root.type == bfd_link_hash_undefweak))
37c644f2
AO
2514 {
2515 /* This case can occur if we saw a PLT reloc in an input
2516 file, but the symbol was never referred to by a dynamic
2517 object. In such a case, we don't actually need to build
2518 a procedure linkage table, and we can just do a REL32
2519 reloc instead. */
067653c5 2520 h->plt.offset = (bfd_vma) -1;
f5385ebf 2521 h->needs_plt = 0;
37c644f2
AO
2522 }
2523
b34976b6 2524 return TRUE;
37c644f2 2525 }
067653c5
AM
2526 else
2527 h->plt.offset = (bfd_vma) -1;
37c644f2
AO
2528
2529 /* If this is a weak symbol, and there is a real definition, the
2530 processor independent code will have arranged for us to see the
2531 real definition first, and we can just use the same value. */
60d67dc8 2532 if (h->is_weakalias)
37c644f2 2533 {
60d67dc8
AM
2534 struct elf_link_hash_entry *def = weakdef (h);
2535 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2536 h->root.u.def.section = def->root.u.def.section;
2537 h->root.u.def.value = def->root.u.def.value;
04e534c3 2538 if (info->nocopyreloc)
60d67dc8 2539 h->non_got_ref = def->non_got_ref;
b34976b6 2540 return TRUE;
37c644f2
AO
2541 }
2542
2543 /* This is a reference to a symbol defined by a dynamic object which
2544 is not a function. */
2545
2546 /* If we are creating a shared library, we must presume that the
2547 only references to the symbol are via the global offset table.
2548 For such cases we need not do anything here; the relocations will
2549 be handled correctly by relocate_section. */
0e1862bb 2550 if (bfd_link_pic (info))
b34976b6 2551 return TRUE;
37c644f2
AO
2552
2553 /* If there are no references to this symbol that do not use the
2554 GOT, we don't need to generate a copy reloc. */
f5385ebf 2555 if (!h->non_got_ref)
b34976b6 2556 return TRUE;
37c644f2 2557
067653c5 2558 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 2559 if (0 && info->nocopyreloc)
067653c5 2560 {
f5385ebf 2561 h->non_got_ref = 0;
b34976b6 2562 return TRUE;
067653c5
AM
2563 }
2564
3bf083ed
AM
2565 /* If we don't find any dynamic relocs in read-only sections, then
2566 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5dbc8b37 2567 if (0 && !_bfd_elf_readonly_dynrelocs (h))
067653c5 2568 {
f5385ebf 2569 h->non_got_ref = 0;
b34976b6 2570 return TRUE;
067653c5
AM
2571 }
2572
37c644f2
AO
2573 /* We must allocate the symbol in our .dynbss section, which will
2574 become part of the .bss section of the executable. There will be
2575 an entry for this symbol in the .dynsym section. The dynamic
2576 object will contain position independent code, so all references
2577 from the dynamic object to this symbol will go through the global
2578 offset table. The dynamic linker will use the .dynsym entry to
2579 determine the address it must put in the global offset table, so
2580 both the dynamic object and the regular object will refer to the
2581 same memory location for the variable. */
2582
067653c5 2583 s = htab->sdynbss;
37c644f2
AO
2584 BFD_ASSERT (s != NULL);
2585
2586 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2587 copy the initial value out of the dynamic object and into the
2588 runtime process image. We need to remember the offset into the
2589 .rela.bss section we are going to use. */
1d7e9d18 2590 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
37c644f2
AO
2591 {
2592 asection *srel;
2593
067653c5 2594 srel = htab->srelbss;
37c644f2 2595 BFD_ASSERT (srel != NULL);
eea6121a 2596 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 2597 h->needs_copy = 1;
37c644f2
AO
2598 }
2599
6cabe1ea 2600 return _bfd_elf_adjust_dynamic_copy (info, h, s);
37c644f2
AO
2601}
2602
067653c5
AM
2603/* Allocate space in .plt, .got and associated reloc sections for
2604 dynamic relocs. */
2605
b34976b6 2606static bfd_boolean
09fd220b 2607allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
067653c5
AM
2608{
2609 struct bfd_link_info *info;
2610 struct elf_sh_link_hash_table *htab;
2611 struct elf_sh_link_hash_entry *eh;
3bf083ed 2612 struct elf_dyn_relocs *p;
067653c5
AM
2613
2614 if (h->root.type == bfd_link_hash_indirect)
b34976b6 2615 return TRUE;
067653c5 2616
067653c5
AM
2617 info = (struct bfd_link_info *) inf;
2618 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2619 if (htab == NULL)
2620 return FALSE;
067653c5 2621
4989d792
SC
2622 eh = (struct elf_sh_link_hash_entry *) h;
2623 if ((h->got.refcount > 0
f5385ebf 2624 || h->forced_local)
4989d792
SC
2625 && eh->gotplt_refcount > 0)
2626 {
2627 /* The symbol has been forced local, or we have some direct got refs,
26e41594 2628 so treat all the gotplt refs as got refs. */
4989d792
SC
2629 h->got.refcount += eh->gotplt_refcount;
2630 if (h->plt.refcount >= eh->gotplt_refcount)
2631 h->plt.refcount -= eh->gotplt_refcount;
2632 }
2633
067653c5 2634 if (htab->root.dynamic_sections_created
04e534c3
KK
2635 && h->plt.refcount > 0
2636 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2637 || h->root.type != bfd_link_hash_undefweak))
067653c5
AM
2638 {
2639 /* Make sure this symbol is output as a dynamic symbol.
2640 Undefined weak syms won't yet be marked as dynamic. */
2641 if (h->dynindx == -1
f5385ebf 2642 && !h->forced_local)
067653c5 2643 {
c152c796 2644 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2645 return FALSE;
067653c5
AM
2646 }
2647
0e1862bb 2648 if (bfd_link_pic (info)
267fb3c1 2649 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
067653c5 2650 {
ce558b89 2651 asection *s = htab->root.splt;
8e45593f 2652 const struct elf_sh_plt_info *plt_info;
067653c5
AM
2653
2654 /* If this is the first .plt entry, make room for the special
2655 first entry. */
eea6121a 2656 if (s->size == 0)
55e6e397 2657 s->size += htab->plt_info->plt0_entry_size;
067653c5 2658
eea6121a 2659 h->plt.offset = s->size;
067653c5
AM
2660
2661 /* If this symbol is not defined in a regular file, and we are
2662 not generating a shared library, then set the symbol to this
2663 location in the .plt. This is required to make function
2664 pointers compare as equal between the normal executable and
8e45593f
NC
2665 the shared library. Skip this for FDPIC, since the
2666 function's address will be the address of the canonical
2667 function descriptor. */
0e1862bb 2668 if (!htab->fdpic_p && !bfd_link_pic (info) && !h->def_regular)
067653c5
AM
2669 {
2670 h->root.u.def.section = s;
2671 h->root.u.def.value = h->plt.offset;
2672 }
2673
2674 /* Make room for this entry. */
8e45593f
NC
2675 plt_info = htab->plt_info;
2676 if (plt_info->short_plt != NULL
2677 && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT))
2678 plt_info = plt_info->short_plt;
2679 s->size += plt_info->symbol_entry_size;
067653c5
AM
2680
2681 /* We also need to make an entry in the .got.plt section, which
2682 will be placed in the .got section by the linker script. */
8e45593f 2683 if (!htab->fdpic_p)
ce558b89 2684 htab->root.sgotplt->size += 4;
8e45593f 2685 else
ce558b89 2686 htab->root.sgotplt->size += 8;
067653c5
AM
2687
2688 /* We also need to make an entry in the .rel.plt section. */
ce558b89 2689 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
55e6e397 2690
0e1862bb 2691 if (htab->vxworks_p && !bfd_link_pic (info))
55e6e397
RS
2692 {
2693 /* VxWorks executables have a second set of relocations
2694 for each PLT entry. They go in a separate relocation
2695 section, which is processed by the kernel loader. */
2696
2697 /* There is a relocation for the initial PLT entry:
2698 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
2699 if (h->plt.offset == htab->plt_info->plt0_entry_size)
2700 htab->srelplt2->size += sizeof (Elf32_External_Rela);
2701
2702 /* There are two extra relocations for each subsequent
2703 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
2704 and an R_SH_DIR32 relocation for the PLT entry. */
2705 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2;
2706 }
067653c5
AM
2707 }
2708 else
2709 {
2710 h->plt.offset = (bfd_vma) -1;
f5385ebf 2711 h->needs_plt = 0;
067653c5
AM
2712 }
2713 }
2714 else
2715 {
2716 h->plt.offset = (bfd_vma) -1;
f5385ebf 2717 h->needs_plt = 0;
067653c5
AM
2718 }
2719
2720 if (h->got.refcount > 0)
2721 {
2722 asection *s;
b34976b6 2723 bfd_boolean dyn;
85e02784 2724 enum got_type got_type = sh_elf_hash_entry (h)->got_type;
067653c5
AM
2725
2726 /* Make sure this symbol is output as a dynamic symbol.
2727 Undefined weak syms won't yet be marked as dynamic. */
2728 if (h->dynindx == -1
f5385ebf 2729 && !h->forced_local)
067653c5 2730 {
c152c796 2731 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2732 return FALSE;
067653c5
AM
2733 }
2734
ce558b89 2735 s = htab->root.sgot;
eea6121a
AM
2736 h->got.offset = s->size;
2737 s->size += 4;
3376eaf5 2738 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
8e45593f 2739 if (got_type == GOT_TLS_GD)
eea6121a 2740 s->size += 4;
067653c5 2741 dyn = htab->root.dynamic_sections_created;
8e45593f
NC
2742 if (!dyn)
2743 {
2744 /* No dynamic relocations required. */
0e1862bb 2745 if (htab->fdpic_p && !bfd_link_pic (info)
8e45593f
NC
2746 && h->root.type != bfd_link_hash_undefweak
2747 && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC))
2748 htab->srofixup->size += 4;
2749 }
87458ed2 2750 /* No dynamic relocations required when IE->LE conversion happens. */
0e1862bb
L
2751 else if (got_type == GOT_TLS_IE
2752 && !h->def_dynamic
2753 && !bfd_link_pic (info))
87458ed2 2754 ;
267fb3c1 2755 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
3376eaf5 2756 R_SH_TLS_GD needs one if local symbol and two if global. */
8e45593f
NC
2757 else if ((got_type == GOT_TLS_GD && h->dynindx == -1)
2758 || got_type == GOT_TLS_IE)
ce558b89 2759 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f 2760 else if (got_type == GOT_TLS_GD)
ce558b89 2761 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
8e45593f
NC
2762 else if (got_type == GOT_FUNCDESC)
2763 {
0e1862bb 2764 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
2765 htab->srofixup->size += 4;
2766 else
ce558b89 2767 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f 2768 }
04e534c3
KK
2769 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2770 || h->root.type != bfd_link_hash_undefweak)
0e1862bb 2771 && (bfd_link_pic (info)
04e534c3 2772 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
ce558b89 2773 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
0e1862bb
L
2774 else if (htab->fdpic_p
2775 && !bfd_link_pic (info)
2776 && got_type == GOT_NORMAL
8e45593f
NC
2777 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2778 || h->root.type != bfd_link_hash_undefweak))
2779 htab->srofixup->size += 4;
067653c5
AM
2780 }
2781 else
2782 h->got.offset = (bfd_vma) -1;
2783
8e45593f
NC
2784 /* Allocate space for any dynamic relocations to function
2785 descriptors, canonical or otherwise. We need to relocate the
2786 reference unless it resolves to zero, which only happens for
2787 undefined weak symbols (either non-default visibility, or when
2788 static linking). Any GOT slot is accounted for elsewhere. */
2789 if (eh->abs_funcdesc_refcount > 0
2790 && (h->root.type != bfd_link_hash_undefweak
2791 || (htab->root.dynamic_sections_created
2792 && ! SYMBOL_CALLS_LOCAL (info, h))))
2793 {
0e1862bb 2794 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
2795 htab->srofixup->size += eh->abs_funcdesc_refcount * 4;
2796 else
ce558b89 2797 htab->root.srelgot->size
8e45593f
NC
2798 += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela);
2799 }
2800
2801 /* We must allocate a function descriptor if there are references to
2802 a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
2803 the dynamic linker isn't going to allocate it. None of this
2804 applies if we already created one in .got.plt, but if the
2805 canonical function descriptor can be in this object, there
2806 won't be a PLT entry at all. */
2807 if ((eh->funcdesc.refcount > 0
2808 || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC))
2809 && h->root.type != bfd_link_hash_undefweak
2810 && SYMBOL_FUNCDESC_LOCAL (info, h))
2811 {
2812 /* Make room for this function descriptor. */
2813 eh->funcdesc.offset = htab->sfuncdesc->size;
2814 htab->sfuncdesc->size += 8;
2815
2816 /* We will need a relocation or two fixups to initialize the
2817 function descriptor, so allocate those too. */
0e1862bb 2818 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
8e45593f
NC
2819 htab->srofixup->size += 8;
2820 else
2821 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
2822 }
2823
190eb1dd 2824 if (h->dyn_relocs == NULL)
b34976b6 2825 return TRUE;
067653c5
AM
2826
2827 /* In the shared -Bsymbolic case, discard space allocated for
2828 dynamic pc-relative relocs against symbols which turn out to be
2829 defined in regular objects. For the normal shared case, discard
2830 space for pc-relative relocs that have become local due to symbol
2831 visibility changes. */
2832
0e1862bb 2833 if (bfd_link_pic (info))
067653c5 2834 {
3d85aebe 2835 if (SYMBOL_CALLS_LOCAL (info, h))
067653c5 2836 {
3bf083ed 2837 struct elf_dyn_relocs **pp;
067653c5 2838
190eb1dd 2839 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
067653c5
AM
2840 {
2841 p->count -= p->pc_count;
2842 p->pc_count = 0;
2843 if (p->count == 0)
2844 *pp = p->next;
2845 else
2846 pp = &p->next;
2847 }
2848 }
04e534c3 2849
3348747a
NS
2850 if (htab->vxworks_p)
2851 {
3bf083ed 2852 struct elf_dyn_relocs **pp;
3348747a 2853
190eb1dd 2854 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
3348747a
NS
2855 {
2856 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2857 *pp = p->next;
2858 else
2859 pp = &p->next;
2860 }
2861 }
2862
04e534c3
KK
2863 /* Also discard relocs on undefined weak syms with non-default
2864 visibility. */
190eb1dd 2865 if (h->dyn_relocs != NULL
04e534c3 2866 && h->root.type == bfd_link_hash_undefweak)
22d606e9 2867 {
6ee6e05a
L
2868 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2869 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
190eb1dd 2870 h->dyn_relocs = NULL;
22d606e9
AM
2871
2872 /* Make sure undefined weak symbols are output as a dynamic
2873 symbol in PIEs. */
2874 else if (h->dynindx == -1
2875 && !h->forced_local)
2876 {
2877 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2878 return FALSE;
2879 }
2880 }
067653c5
AM
2881 }
2882 else
2883 {
2884 /* For the non-shared case, discard space for relocs against
2885 symbols which turn out to need copy relocs or are not
2886 dynamic. */
2887
f5385ebf
AM
2888 if (!h->non_got_ref
2889 && ((h->def_dynamic
2890 && !h->def_regular)
067653c5
AM
2891 || (htab->root.dynamic_sections_created
2892 && (h->root.type == bfd_link_hash_undefweak
2893 || h->root.type == bfd_link_hash_undefined))))
2894 {
2895 /* Make sure this symbol is output as a dynamic symbol.
2896 Undefined weak syms won't yet be marked as dynamic. */
2897 if (h->dynindx == -1
f5385ebf 2898 && !h->forced_local)
067653c5 2899 {
c152c796 2900 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 2901 return FALSE;
067653c5
AM
2902 }
2903
2904 /* If that succeeded, we know we'll be keeping all the
2905 relocs. */
2906 if (h->dynindx != -1)
2907 goto keep;
2908 }
2909
190eb1dd 2910 h->dyn_relocs = NULL;
067653c5
AM
2911
2912 keep: ;
2913 }
2914
2915 /* Finally, allocate space. */
190eb1dd 2916 for (p = h->dyn_relocs; p != NULL; p = p->next)
067653c5
AM
2917 {
2918 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2919 sreloc->size += p->count * sizeof (Elf32_External_Rela);
8e45593f
NC
2920
2921 /* If we need relocations, we do not need fixups. */
0e1862bb 2922 if (htab->fdpic_p && !bfd_link_pic (info))
8e45593f 2923 htab->srofixup->size -= 4 * (p->count - p->pc_count);
067653c5
AM
2924 }
2925
b34976b6 2926 return TRUE;
067653c5
AM
2927}
2928
55e6e397
RS
2929/* This function is called after all the input files have been read,
2930 and the input sections have been assigned to output sections.
2931 It's a convenient place to determine the PLT style. */
2932
2933static bfd_boolean
2934sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
2935{
0e1862bb
L
2936 sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd,
2937 bfd_link_pic (info));
8e45593f 2938
0e1862bb 2939 if (sh_elf_hash_table (info)->fdpic_p && !bfd_link_relocatable (info)
04c3a755
NS
2940 && !bfd_elf_stack_segment_size (output_bfd, info,
2941 "__stacksize", DEFAULT_STACK_SIZE))
2942 return FALSE;
55e6e397
RS
2943 return TRUE;
2944}
2945
37c644f2
AO
2946/* Set the sizes of the dynamic sections. */
2947
b34976b6 2948static bfd_boolean
09fd220b
KK
2949sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2950 struct bfd_link_info *info)
37c644f2 2951{
067653c5 2952 struct elf_sh_link_hash_table *htab;
37c644f2
AO
2953 bfd *dynobj;
2954 asection *s;
b34976b6 2955 bfd_boolean relocs;
067653c5 2956 bfd *ibfd;
37c644f2 2957
067653c5 2958 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
2959 if (htab == NULL)
2960 return FALSE;
2961
067653c5 2962 dynobj = htab->root.dynobj;
37c644f2
AO
2963 BFD_ASSERT (dynobj != NULL);
2964
067653c5 2965 if (htab->root.dynamic_sections_created)
37c644f2
AO
2966 {
2967 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2968 if (bfd_link_executable (info) && !info->nointerp)
37c644f2 2969 {
3d4d4302 2970 s = bfd_get_linker_section (dynobj, ".interp");
37c644f2 2971 BFD_ASSERT (s != NULL);
eea6121a 2972 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
37c644f2
AO
2973 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2974 }
2975 }
37c644f2 2976
067653c5
AM
2977 /* Set up .got offsets for local syms, and space for local dynamic
2978 relocs. */
c72f2fb2 2979 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
37c644f2 2980 {
067653c5
AM
2981 bfd_signed_vma *local_got;
2982 bfd_signed_vma *end_local_got;
8e45593f
NC
2983 union gotref *local_funcdesc, *end_local_funcdesc;
2984 char *local_got_type;
067653c5
AM
2985 bfd_size_type locsymcount;
2986 Elf_Internal_Shdr *symtab_hdr;
2987 asection *srel;
37c644f2 2988
0ffa91dd 2989 if (! is_sh_elf (ibfd))
37c644f2
AO
2990 continue;
2991
067653c5 2992 for (s = ibfd->sections; s != NULL; s = s->next)
37c644f2 2993 {
3bf083ed 2994 struct elf_dyn_relocs *p;
067653c5 2995
3bf083ed 2996 for (p = ((struct elf_dyn_relocs *)
067653c5
AM
2997 elf_section_data (s)->local_dynrel);
2998 p != NULL;
2999 p = p->next)
37c644f2 3000 {
067653c5
AM
3001 if (! bfd_is_abs_section (p->sec)
3002 && bfd_is_abs_section (p->sec->output_section))
3003 {
3004 /* Input section has been discarded, either because
3005 it is a copy of a linkonce section or due to
3006 linker script /DISCARD/, so we'll be discarding
3007 the relocs too. */
3008 }
3348747a
NS
3009 else if (htab->vxworks_p
3010 && strcmp (p->sec->output_section->name,
3011 ".tls_vars") == 0)
3012 {
3013 /* Relocations in vxworks .tls_vars sections are
3014 handled specially by the loader. */
3015 }
067653c5
AM
3016 else if (p->count != 0)
3017 {
3018 srel = elf_section_data (p->sec)->sreloc;
eea6121a 3019 srel->size += p->count * sizeof (Elf32_External_Rela);
067653c5 3020 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
a72f95f7
L
3021 {
3022 info->flags |= DF_TEXTREL;
871b3ab2 3023 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
a72f95f7
L
3024 p->sec->owner, p->sec);
3025 }
8e45593f
NC
3026
3027 /* If we need relocations, we do not need fixups. */
0e1862bb 3028 if (htab->fdpic_p && !bfd_link_pic (info))
8e45593f 3029 htab->srofixup->size -= 4 * (p->count - p->pc_count);
067653c5 3030 }
37c644f2
AO
3031 }
3032 }
067653c5 3033
0ffa91dd 3034 symtab_hdr = &elf_symtab_hdr (ibfd);
067653c5 3035 locsymcount = symtab_hdr->sh_info;
ce558b89
AM
3036 s = htab->root.sgot;
3037 srel = htab->root.srelgot;
8e45593f
NC
3038
3039 local_got = elf_local_got_refcounts (ibfd);
3040 if (local_got)
37c644f2 3041 {
8e45593f
NC
3042 end_local_got = local_got + locsymcount;
3043 local_got_type = sh_elf_local_got_type (ibfd);
3044 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3045 for (; local_got < end_local_got; ++local_got)
37c644f2 3046 {
8e45593f
NC
3047 if (*local_got > 0)
3048 {
3049 *local_got = s->size;
3050 s->size += 4;
3051 if (*local_got_type == GOT_TLS_GD)
3052 s->size += 4;
0e1862bb 3053 if (bfd_link_pic (info))
8e45593f
NC
3054 srel->size += sizeof (Elf32_External_Rela);
3055 else
3056 htab->srofixup->size += 4;
3057
3058 if (*local_got_type == GOT_FUNCDESC)
3059 {
3060 if (local_funcdesc == NULL)
3061 {
3062 bfd_size_type size;
3063
3064 size = locsymcount * sizeof (union gotref);
3065 local_funcdesc = (union gotref *) bfd_zalloc (ibfd,
3066 size);
3067 if (local_funcdesc == NULL)
3068 return FALSE;
3069 sh_elf_local_funcdesc (ibfd) = local_funcdesc;
3070 local_funcdesc += (local_got
3071 - elf_local_got_refcounts (ibfd));
3072 }
3073 local_funcdesc->refcount++;
3074 ++local_funcdesc;
3075 }
3076 }
3077 else
3078 *local_got = (bfd_vma) -1;
3079 ++local_got_type;
3080 }
3081 }
3082
3083 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3084 if (local_funcdesc)
3085 {
3086 end_local_funcdesc = local_funcdesc + locsymcount;
3087
3088 for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc)
3089 {
3090 if (local_funcdesc->refcount > 0)
3091 {
3092 local_funcdesc->offset = htab->sfuncdesc->size;
3093 htab->sfuncdesc->size += 8;
0e1862bb 3094 if (!bfd_link_pic (info))
8e45593f
NC
3095 htab->srofixup->size += 8;
3096 else
3097 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
3098 }
3099 else
3100 local_funcdesc->offset = MINUS_ONE;
37c644f2 3101 }
37c644f2 3102 }
8e45593f 3103
067653c5
AM
3104 }
3105
3376eaf5
KK
3106 if (htab->tls_ldm_got.refcount > 0)
3107 {
3108 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3109 relocs. */
ce558b89
AM
3110 htab->tls_ldm_got.offset = htab->root.sgot->size;
3111 htab->root.sgot->size += 8;
3112 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
3376eaf5
KK
3113 }
3114 else
3115 htab->tls_ldm_got.offset = -1;
3116
8e45593f
NC
3117 /* Only the reserved entries should be present. For FDPIC, they go at
3118 the end of .got.plt. */
3119 if (htab->fdpic_p)
3120 {
ce558b89
AM
3121 BFD_ASSERT (htab->root.sgotplt && htab->root.sgotplt->size == 12);
3122 htab->root.sgotplt->size = 0;
8e45593f
NC
3123 }
3124
067653c5
AM
3125 /* Allocate global sym .plt and .got entries, and space for global
3126 sym dynamic relocs. */
09fd220b 3127 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
067653c5 3128
8e45593f
NC
3129 /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3130 end of the FDPIC .got.plt. */
3131 if (htab->fdpic_p)
3132 {
ce558b89
AM
3133 htab->root.hgot->root.u.def.value = htab->root.sgotplt->size;
3134 htab->root.sgotplt->size += 12;
8e45593f
NC
3135 }
3136
3137 /* At the very end of the .rofixup section is a pointer to the GOT. */
3138 if (htab->fdpic_p && htab->srofixup != NULL)
3139 htab->srofixup->size += 4;
3140
067653c5
AM
3141 /* We now have determined the sizes of the various dynamic sections.
3142 Allocate memory for them. */
b34976b6 3143 relocs = FALSE;
067653c5
AM
3144 for (s = dynobj->sections; s != NULL; s = s->next)
3145 {
3146 if ((s->flags & SEC_LINKER_CREATED) == 0)
3147 continue;
3148
ce558b89
AM
3149 if (s == htab->root.splt
3150 || s == htab->root.sgot
3151 || s == htab->root.sgotplt
8e45593f
NC
3152 || s == htab->sfuncdesc
3153 || s == htab->srofixup
c456f082 3154 || s == htab->sdynbss)
067653c5
AM
3155 {
3156 /* Strip this section if we don't need it; see the
3157 comment below. */
3158 }
fd361982 3159 else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
067653c5 3160 {
ce558b89 3161 if (s->size != 0 && s != htab->root.srelplt && s != htab->srelplt2)
b34976b6 3162 relocs = TRUE;
067653c5
AM
3163
3164 /* We use the reloc_count field as a counter if we need
3165 to copy relocs into the output file. */
3166 s->reloc_count = 0;
3167 }
3168 else
37c644f2
AO
3169 {
3170 /* It's not one of our sections, so don't allocate space. */
3171 continue;
3172 }
3173
eea6121a 3174 if (s->size == 0)
37c644f2 3175 {
067653c5
AM
3176 /* If we don't need this section, strip it from the
3177 output file. This is mostly to handle .rela.bss and
3178 .rela.plt. We must create both sections in
3179 create_dynamic_sections, because they must be created
3180 before the linker maps input sections to output
3181 sections. The linker does that before
3182 adjust_dynamic_symbol is called, and it is that
3183 function which decides whether anything needs to go
3184 into these sections. */
3185
8423293d 3186 s->flags |= SEC_EXCLUDE;
37c644f2
AO
3187 continue;
3188 }
3189
c456f082
AM
3190 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3191 continue;
3192
067653c5
AM
3193 /* Allocate memory for the section contents. We use bfd_zalloc
3194 here in case unused entries are not reclaimed before the
3195 section's contents are written out. This should not happen,
3196 but this way if it does, we get a R_SH_NONE reloc instead
3197 of garbage. */
eea6121a 3198 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
067653c5 3199 if (s->contents == NULL)
b34976b6 3200 return FALSE;
37c644f2
AO
3201 }
3202
067653c5 3203 if (htab->root.dynamic_sections_created)
37c644f2
AO
3204 {
3205 /* Add some entries to the .dynamic section. We fill in the
3206 values later, in sh_elf_finish_dynamic_sections, but we
3207 must add the entries now so that we get the correct size for
3208 the .dynamic section. The DT_DEBUG entry is filled in by the
3209 dynamic linker and used by the debugger. */
dc810e39 3210#define add_dynamic_entry(TAG, VAL) \
5a580b3a 3211 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 3212
0e1862bb 3213 if (bfd_link_executable (info))
37c644f2 3214 {
067653c5 3215 if (! add_dynamic_entry (DT_DEBUG, 0))
b34976b6 3216 return FALSE;
37c644f2
AO
3217 }
3218
ce558b89 3219 if (htab->root.splt->size != 0)
37c644f2 3220 {
067653c5
AM
3221 if (! add_dynamic_entry (DT_PLTGOT, 0)
3222 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
3223 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
3224 || ! add_dynamic_entry (DT_JMPREL, 0))
b34976b6 3225 return FALSE;
37c644f2 3226 }
b4b0e149 3227 else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC))
8e45593f
NC
3228 {
3229 if (! add_dynamic_entry (DT_PLTGOT, 0))
3230 return FALSE;
3231 }
37c644f2
AO
3232
3233 if (relocs)
3234 {
067653c5
AM
3235 if (! add_dynamic_entry (DT_RELA, 0)
3236 || ! add_dynamic_entry (DT_RELASZ, 0)
3237 || ! add_dynamic_entry (DT_RELAENT,
3238 sizeof (Elf32_External_Rela)))
b34976b6 3239 return FALSE;
37c644f2 3240
067653c5
AM
3241 /* If any dynamic relocs apply to a read-only section,
3242 then we need a DT_TEXTREL entry. */
3243 if ((info->flags & DF_TEXTREL) == 0)
d49e5065
L
3244 elf_link_hash_traverse (&htab->root,
3245 _bfd_elf_maybe_set_textrel, info);
067653c5
AM
3246
3247 if ((info->flags & DF_TEXTREL) != 0)
3248 {
3249 if (! add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 3250 return FALSE;
067653c5 3251 }
37c644f2 3252 }
7a2b07ff
NS
3253 if (htab->vxworks_p
3254 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
3255 return FALSE;
37c644f2 3256 }
dc810e39 3257#undef add_dynamic_entry
37c644f2 3258
b34976b6 3259 return TRUE;
37c644f2 3260}
37c644f2 3261\f
8e45593f 3262/* Add a dynamic relocation to the SRELOC section. */
37c644f2 3263
8e45593f
NC
3264inline static bfd_vma
3265sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
3266 int reloc_type, long dynindx, bfd_vma addend)
37c644f2 3267{
8e45593f
NC
3268 Elf_Internal_Rela outrel;
3269 bfd_vma reloc_offset;
37c644f2 3270
8e45593f
NC
3271 outrel.r_offset = offset;
3272 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
3273 outrel.r_addend = addend;
0ffa91dd 3274
8e45593f
NC
3275 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela);
3276 BFD_ASSERT (reloc_offset < sreloc->size);
3277 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
3278 sreloc->contents + reloc_offset);
3279 sreloc->reloc_count++;
37c644f2 3280
8e45593f
NC
3281 return reloc_offset;
3282}
37c644f2 3283
8e45593f 3284/* Add an FDPIC read-only fixup. */
37c644f2 3285
8e45593f
NC
3286inline static void
3287sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset)
3288{
3289 bfd_vma fixup_offset;
3290
3291 fixup_offset = srofixup->reloc_count++ * 4;
3292 BFD_ASSERT (fixup_offset < srofixup->size);
3293 bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset);
3294}
3295
3296/* Return the offset of the generated .got section from the
3297 _GLOBAL_OFFSET_TABLE_ symbol. */
3298
3299static bfd_signed_vma
3300sh_elf_got_offset (struct elf_sh_link_hash_table *htab)
3301{
ce558b89 3302 return (htab->root.sgot->output_offset - htab->root.sgotplt->output_offset
8e45593f
NC
3303 - htab->root.hgot->root.u.def.value);
3304}
3305
3306/* Find the segment number in which OSEC, and output section, is
3307 located. */
3308
3309static unsigned
3310sh_elf_osec_to_segment (bfd *output_bfd, asection *osec)
3311{
3d301fdc
AM
3312 Elf_Internal_Phdr *p = NULL;
3313
5bc8cb6f
NC
3314 if (output_bfd->xvec->flavour == bfd_target_elf_flavour
3315 /* PR ld/17110: Do not look for output segments in an input bfd. */
3316 && output_bfd->direction != read_direction)
3d301fdc 3317 p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
8e45593f
NC
3318
3319 /* FIXME: Nothing ever says what this index is relative to. The kernel
3320 supplies data in terms of the number of load segments but this is
3321 a phdr index and the first phdr may not be a load segment. */
3322 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
3323}
3324
3325static bfd_boolean
3326sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec)
3327{
3328 unsigned seg = sh_elf_osec_to_segment (output_bfd, osec);
3329
3d301fdc
AM
3330 return (seg != (unsigned) -1
3331 && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W));
8e45593f
NC
3332}
3333
3334/* Generate the initial contents of a local function descriptor, along
3335 with any relocations or fixups required. */
3336static bfd_boolean
3337sh_elf_initialize_funcdesc (bfd *output_bfd,
3338 struct bfd_link_info *info,
3339 struct elf_link_hash_entry *h,
3340 bfd_vma offset,
3341 asection *section,
3342 bfd_vma value)
3343{
3344 struct elf_sh_link_hash_table *htab;
3345 int dynindx;
3346 bfd_vma addr, seg;
3347
3348 htab = sh_elf_hash_table (info);
3349
3350 /* FIXME: The ABI says that the offset to the function goes in the
3351 descriptor, along with the segment index. We're RELA, so it could
3352 go in the reloc instead... */
3353
3354 if (h != NULL && SYMBOL_CALLS_LOCAL (info, h))
3355 {
3356 section = h->root.u.def.section;
3357 value = h->root.u.def.value;
3358 }
3359
3360 if (h == NULL || SYMBOL_CALLS_LOCAL (info, h))
3361 {
3362 dynindx = elf_section_data (section->output_section)->dynindx;
3363 addr = value + section->output_offset;
3364 seg = sh_elf_osec_to_segment (output_bfd, section->output_section);
3365 }
3366 else
3367 {
3368 BFD_ASSERT (h->dynindx != -1);
3369 dynindx = h->dynindx;
3370 addr = seg = 0;
3371 }
3372
0e1862bb 3373 if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h))
8e45593f
NC
3374 {
3375 if (h == NULL || h->root.type != bfd_link_hash_undefweak)
3376 {
3377 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3378 offset
3379 + htab->sfuncdesc->output_section->vma
3380 + htab->sfuncdesc->output_offset);
3381 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3382 offset + 4
3383 + htab->sfuncdesc->output_section->vma
3384 + htab->sfuncdesc->output_offset);
3385 }
3386
3387 /* There are no dynamic relocations so fill in the final
3388 address and gp value (barring fixups). */
3389 addr += section->output_section->vma;
3390 seg = htab->root.hgot->root.u.def.value
3391 + htab->root.hgot->root.u.def.section->output_section->vma
3392 + htab->root.hgot->root.u.def.section->output_offset;
3393 }
3394 else
3395 sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc,
3396 offset
3397 + htab->sfuncdesc->output_section->vma
3398 + htab->sfuncdesc->output_offset,
3399 R_SH_FUNCDESC_VALUE, dynindx, 0);
3400
3401 bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset);
3402 bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4);
3403
3404 return TRUE;
3405}
3406
3407/* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3408 VALUE is the field's value. Return bfd_reloc_ok if successful or an error
3409 otherwise. */
3410
3411static bfd_reloc_status_type
3412install_movi20_field (bfd *output_bfd, unsigned long relocation,
3413 bfd *input_bfd, asection *input_section,
3414 bfd_byte *contents, bfd_vma offset)
3415{
3416 unsigned long cur_val;
3417 bfd_byte *addr;
3418 bfd_reloc_status_type r;
3419
3420 if (offset > bfd_get_section_limit (input_bfd, input_section))
3421 return bfd_reloc_outofrange;
3422
3423 r = bfd_check_overflow (complain_overflow_signed, 20, 0,
3424 bfd_arch_bits_per_address (input_bfd), relocation);
3425 if (r != bfd_reloc_ok)
3426 return r;
3427
3428 addr = contents + offset;
3429 cur_val = bfd_get_16 (output_bfd, addr);
3430 bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr);
3431 bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2);
3432
3433 return bfd_reloc_ok;
3434}
3435
3436/* Relocate an SH ELF section. */
3437
3438static bfd_boolean
3439sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3440 bfd *input_bfd, asection *input_section,
3441 bfd_byte *contents, Elf_Internal_Rela *relocs,
3442 Elf_Internal_Sym *local_syms,
3443 asection **local_sections)
3444{
3445 struct elf_sh_link_hash_table *htab;
3446 Elf_Internal_Shdr *symtab_hdr;
3447 struct elf_link_hash_entry **sym_hashes;
3448 Elf_Internal_Rela *rel, *relend;
8e45593f 3449 bfd_vma *local_got_offsets;
e0af1f53
MR
3450 asection *sgot = NULL;
3451 asection *sgotplt = NULL;
3452 asection *splt = NULL;
3453 asection *sreloc = NULL;
3454 asection *srelgot = NULL;
8e45593f
NC
3455 bfd_boolean is_vxworks_tls;
3456 unsigned isec_segment, got_segment, plt_segment, check_segment[2];
e0af1f53 3457 bfd_boolean fdpic_p = FALSE;
8e45593f 3458
7af5d5c4
AM
3459 if (!is_sh_elf (input_bfd))
3460 {
3461 bfd_set_error (bfd_error_wrong_format);
3462 return FALSE;
3463 }
8e45593f
NC
3464
3465 htab = sh_elf_hash_table (info);
e0af1f53
MR
3466 if (htab != NULL)
3467 {
ce558b89
AM
3468 sgot = htab->root.sgot;
3469 sgotplt = htab->root.sgotplt;
3470 srelgot = htab->root.srelgot;
3471 splt = htab->root.splt;
e0af1f53
MR
3472 fdpic_p = htab->fdpic_p;
3473 }
8e45593f
NC
3474 symtab_hdr = &elf_symtab_hdr (input_bfd);
3475 sym_hashes = elf_sym_hashes (input_bfd);
8e45593f
NC
3476 local_got_offsets = elf_local_got_offsets (input_bfd);
3477
3478 isec_segment = sh_elf_osec_to_segment (output_bfd,
3479 input_section->output_section);
e0af1f53 3480 if (fdpic_p && sgot)
8e45593f 3481 got_segment = sh_elf_osec_to_segment (output_bfd,
e0af1f53 3482 sgot->output_section);
8e45593f
NC
3483 else
3484 got_segment = -1;
e0af1f53 3485 if (fdpic_p && splt)
8e45593f 3486 plt_segment = sh_elf_osec_to_segment (output_bfd,
e0af1f53 3487 splt->output_section);
8e45593f
NC
3488 else
3489 plt_segment = -1;
3490
8e45593f
NC
3491 /* We have to handle relocations in vxworks .tls_vars sections
3492 specially, because the dynamic loader is 'weird'. */
0e1862bb 3493 is_vxworks_tls = (htab && htab->vxworks_p && bfd_link_pic (info)
8e45593f
NC
3494 && !strcmp (input_section->output_section->name,
3495 ".tls_vars"));
3496
3497 rel = relocs;
3498 relend = relocs + input_section->reloc_count;
3499 for (; rel < relend; rel++)
3500 {
3501 int r_type;
3502 reloc_howto_type *howto;
3503 unsigned long r_symndx;
3504 Elf_Internal_Sym *sym;
3505 asection *sec;
3506 struct elf_link_hash_entry *h;
3507 bfd_vma relocation;
3508 bfd_vma addend = (bfd_vma) 0;
3509 bfd_reloc_status_type r;
8e45593f 3510 bfd_vma off;
85e02784 3511 enum got_type got_type;
8e45593f 3512 const char *symname = NULL;
6ee6e05a 3513 bfd_boolean resolved_to_zero;
8e45593f
NC
3514
3515 r_symndx = ELF32_R_SYM (rel->r_info);
37c644f2 3516
37c644f2
AO
3517 r_type = ELF32_R_TYPE (rel->r_info);
3518
3519 /* Many of the relocs are only used for relaxing, and are
067653c5 3520 handled entirely by the relaxation code. */
d38eb334
DD
3521 if (r_type >= (int) R_SH_GNU_VTINHERIT
3522 && r_type <= (int) R_SH_LABEL)
37c644f2 3523 continue;
c5aeb40f
AO
3524 if (r_type == (int) R_SH_NONE)
3525 continue;
37c644f2
AO
3526
3527 if (r_type < 0
3528 || r_type >= R_SH_max
3529 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
06bb75c1 3530 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
8e45593f
NC
3531 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
3532 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
fbca6ad9
AO
3533 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
3534 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
3535 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
3536 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
3376eaf5
KK
3537 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
3538 && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
8e45593f
NC
3539 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6
3540 && r_type <= (int) R_SH_LAST_INVALID_RELOC_6))
37c644f2
AO
3541 {
3542 bfd_set_error (bfd_error_bad_value);
b34976b6 3543 return FALSE;
37c644f2
AO
3544 }
3545
55e6e397 3546 howto = get_howto_table (output_bfd) + r_type;
37c644f2 3547
146be91a 3548 /* For relocs that aren't partial_inplace, we get the addend from
067653c5 3549 the relocation. */
146be91a
HPN
3550 if (! howto->partial_inplace)
3551 addend = rel->r_addend;
3552
6ee6e05a 3553 resolved_to_zero = FALSE;
37c644f2
AO
3554 h = NULL;
3555 sym = NULL;
3556 sec = NULL;
8e45593f
NC
3557 check_segment[0] = -1;
3558 check_segment[1] = -1;
37c644f2
AO
3559 if (r_symndx < symtab_hdr->sh_info)
3560 {
3561 sym = local_syms + r_symndx;
3562 sec = local_sections[r_symndx];
8e45593f
NC
3563
3564 symname = bfd_elf_string_from_elf_section
3565 (input_bfd, symtab_hdr->sh_link, sym->st_name);
3566 if (symname == NULL || *symname == '\0')
fd361982 3567 symname = bfd_section_name (sec);
8e45593f 3568
37c644f2
AO
3569 relocation = (sec->output_section->vma
3570 + sec->output_offset
3571 + sym->st_value);
ab96bf03 3572
dbaa2011 3573 if (sec != NULL && discarded_section (sec))
ab96bf03
AM
3574 /* Handled below. */
3575 ;
0e1862bb 3576 else if (bfd_link_relocatable (info))
8a3975e6 3577 {
1049f94e 3578 /* This is a relocatable link. We don't have to change
8a3975e6
AO
3579 anything, unless the reloc is against a section symbol,
3580 in which case we have to adjust according to where the
3581 section symbol winds up in the output section. */
8a3975e6 3582 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
146be91a
HPN
3583 {
3584 if (! howto->partial_inplace)
3585 {
3586 /* For relocations with the addend in the
3587 relocation, we need just to update the addend.
3588 All real relocs are of type partial_inplace; this
3589 code is mostly for completeness. */
ab96bf03 3590 rel->r_addend += sec->output_offset;
146be91a
HPN
3591
3592 continue;
3593 }
3594
3595 /* Relocs of type partial_inplace need to pick up the
3596 contents in the contents and add the offset resulting
3597 from the changed location of the section symbol.
3598 Using _bfd_final_link_relocate (e.g. goto
3599 final_link_relocate) here would be wrong, because
3600 relocations marked pc_relative would get the current
3601 location subtracted, and we must only do that at the
3602 final link. */
3603 r = _bfd_relocate_contents (howto, input_bfd,
3604 sec->output_offset
3605 + sym->st_value,
3606 contents + rel->r_offset);
3607 goto relocation_done;
3608 }
8a3975e6
AO
3609
3610 continue;
3611 }
f8df10f4
JJ
3612 else if (! howto->partial_inplace)
3613 {
8517fae7 3614 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
f8df10f4
JJ
3615 addend = rel->r_addend;
3616 }
3617 else if ((sec->flags & SEC_MERGE)
3618 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
3619 {
3620 asection *msec;
3621
3622 if (howto->rightshift || howto->src_mask != 0xffffffff)
3623 {
4eca0228 3624 _bfd_error_handler
695344c0 3625 /* xgettext:c-format */
2dcf00ce
AM
3626 (_("%pB(%pA+%#" PRIx64 "): "
3627 "%s relocation against SEC_MERGE section"),
d003868e 3628 input_bfd, input_section,
2dcf00ce 3629 (uint64_t) rel->r_offset, howto->name);
b34976b6 3630 return FALSE;
f8df10f4
JJ
3631 }
3632
067653c5
AM
3633 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
3634 msec = sec;
3635 addend =
c629eae0 3636 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
f8df10f4
JJ
3637 - relocation;
3638 addend += msec->output_section->vma + msec->output_offset;
3639 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
3640 addend = 0;
3641 }
37c644f2
AO
3642 }
3643 else
3644 {
560e09e9
NC
3645 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
3646
ab96bf03 3647 relocation = 0;
37c644f2 3648 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8e45593f 3649 symname = h->root.root.string;
37c644f2
AO
3650 while (h->root.type == bfd_link_hash_indirect
3651 || h->root.type == bfd_link_hash_warning)
211dc24b 3652 h = (struct elf_link_hash_entry *) h->root.u.i.link;
37c644f2
AO
3653 if (h->root.type == bfd_link_hash_defined
3654 || h->root.type == bfd_link_hash_defweak)
3655 {
b34976b6 3656 bfd_boolean dyn;
067653c5 3657
e0af1f53 3658 dyn = htab ? htab->root.dynamic_sections_created : FALSE;
37c644f2
AO
3659 sec = h->root.u.def.section;
3660 /* In these cases, we don't need the relocation value.
3661 We check specially because in some obscure cases
435b1e90 3662 sec->output_section will be NULL. */
37c644f2 3663 if (r_type == R_SH_GOTPC
fbca6ad9
AO
3664 || r_type == R_SH_GOTPC_LOW16
3665 || r_type == R_SH_GOTPC_MEDLOW16
3666 || r_type == R_SH_GOTPC_MEDHI16
3667 || r_type == R_SH_GOTPC_HI16
3668 || ((r_type == R_SH_PLT32
3669 || r_type == R_SH_PLT_LOW16
3670 || r_type == R_SH_PLT_MEDLOW16
3671 || r_type == R_SH_PLT_MEDHI16
3672 || r_type == R_SH_PLT_HI16)
37c644f2 3673 && h->plt.offset != (bfd_vma) -1)
fbca6ad9 3674 || ((r_type == R_SH_GOT32
8e45593f
NC
3675 || r_type == R_SH_GOT20
3676 || r_type == R_SH_GOTFUNCDESC
3677 || r_type == R_SH_GOTFUNCDESC20
3678 || r_type == R_SH_GOTOFFFUNCDESC
3679 || r_type == R_SH_GOTOFFFUNCDESC20
3680 || r_type == R_SH_FUNCDESC
fbca6ad9
AO
3681 || r_type == R_SH_GOT_LOW16
3682 || r_type == R_SH_GOT_MEDLOW16
3683 || r_type == R_SH_GOT_MEDHI16
3684 || r_type == R_SH_GOT_HI16)
0e1862bb
L
3685 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3686 bfd_link_pic (info),
3687 h)
3688 && (! bfd_link_pic (info)
37c644f2 3689 || (! info->symbolic && h->dynindx != -1)
f5385ebf 3690 || !h->def_regular))
37c644f2
AO
3691 /* The cases above are those in which relocation is
3692 overwritten in the switch block below. The cases
3693 below are those in which we must defer relocation
3694 to run-time, because we can't resolve absolute
3695 addresses when creating a shared library. */
0e1862bb 3696 || (bfd_link_pic (info)
37c644f2 3697 && ((! info->symbolic && h->dynindx != -1)
f5385ebf 3698 || !h->def_regular)
37c644f2 3699 && ((r_type == R_SH_DIR32
f5385ebf 3700 && !h->forced_local)
f50ad433
KK
3701 || (r_type == R_SH_REL32
3702 && !SYMBOL_CALLS_LOCAL (info, h)))
37c644f2
AO
3703 && ((input_section->flags & SEC_ALLOC) != 0
3704 /* DWARF will emit R_SH_DIR32 relocations in its
3705 sections against symbols defined externally
3706 in shared libraries. We can't do anything
3707 with them here. */
067653c5 3708 || ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 3709 && h->def_dynamic)))
1448fa32
KK
3710 /* Dynamic relocs are not propagated for SEC_DEBUGGING
3711 sections because such sections are not SEC_ALLOC and
3712 thus ld.so will not process them. */
3713 || (sec->output_section == NULL
3714 && ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 3715 && h->def_dynamic))
3376eaf5 3716 || (sec->output_section == NULL
8e45593f
NC
3717 && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE
3718 || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD)))
ab96bf03
AM
3719 ;
3720 else if (sec->output_section != NULL)
fad3d2c1 3721 relocation = (h->root.u.def.value
ab96bf03 3722 + sec->output_section->vma
fad3d2c1 3723 + sec->output_offset);
0e1862bb 3724 else if (!bfd_link_relocatable (info)
1d5316ab
AM
3725 && (_bfd_elf_section_offset (output_bfd, info,
3726 input_section,
3727 rel->r_offset)
3728 != (bfd_vma) -1))
37c644f2 3729 {
4eca0228 3730 _bfd_error_handler
695344c0 3731 /* xgettext:c-format */
2dcf00ce
AM
3732 (_("%pB(%pA+%#" PRIx64 "): "
3733 "unresolvable %s relocation against symbol `%s'"),
843fe662
L
3734 input_bfd,
3735 input_section,
2dcf00ce 3736 (uint64_t) rel->r_offset,
843fe662
L
3737 howto->name,
3738 h->root.root.string);
b34976b6 3739 return FALSE;
37c644f2 3740 }
37c644f2
AO
3741 }
3742 else if (h->root.type == bfd_link_hash_undefweak)
6ee6e05a 3743 resolved_to_zero = UNDEFWEAK_NO_DYNAMIC_RELOC (info, h);
59c2e50f 3744 else if (info->unresolved_syms_in_objects == RM_IGNORE
067653c5 3745 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
ab96bf03 3746 ;
0e1862bb 3747 else if (!bfd_link_relocatable (info))
95a51568
FS
3748 info->callbacks->undefined_symbol
3749 (info, h->root.root.string, input_bfd, input_section,
3750 rel->r_offset,
3751 (info->unresolved_syms_in_objects == RM_DIAGNOSE
3752 && !info->warn_unresolved_syms)
3753 || ELF_ST_VISIBILITY (h->other));
3754 }
37c644f2 3755
dbaa2011 3756 if (sec != NULL && discarded_section (sec))
e4067dbb 3757 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3758 rel, 1, relend, howto, 0, contents);
ab96bf03 3759
0e1862bb 3760 if (bfd_link_relocatable (info))
ab96bf03
AM
3761 continue;
3762
8e45593f
NC
3763 /* Check for inter-segment relocations in FDPIC files. Most
3764 relocations connect the relocation site to the location of
3765 the target symbol, but there are some exceptions below. */
3766 check_segment[0] = isec_segment;
3767 if (sec != NULL)
3768 check_segment[1] = sh_elf_osec_to_segment (output_bfd,
3769 sec->output_section);
3770 else
3771 check_segment[1] = -1;
3772
435b1e90 3773 switch ((int) r_type)
37c644f2
AO
3774 {
3775 final_link_relocate:
3776 /* COFF relocs don't use the addend. The addend is used for
435b1e90 3777 R_SH_DIR32 to be compatible with other compilers. */
37c644f2
AO
3778 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3779 contents, rel->r_offset,
3780 relocation, addend);
3781 break;
3782
3783 case R_SH_IND12W:
cd6ec716
DD
3784 goto final_link_relocate;
3785
37c644f2
AO
3786 case R_SH_DIR8WPN:
3787 case R_SH_DIR8WPZ:
3788 case R_SH_DIR8WPL:
cd6ec716
DD
3789 /* If the reloc is against the start of this section, then
3790 the assembler has already taken care of it and the reloc
3791 is here only to assist in relaxing. If the reloc is not
3792 against the start of this section, then it's against an
3793 external symbol and we must deal with it ourselves. */
3794 if (input_section->output_section->vma + input_section->output_offset
3795 != relocation)
3796 {
3797 int disp = (relocation
3798 - input_section->output_section->vma
3799 - input_section->output_offset
3800 - rel->r_offset);
3801 int mask = 0;
3802 switch (r_type)
3803 {
3804 case R_SH_DIR8WPN:
3805 case R_SH_DIR8WPZ: mask = 1; break;
3806 case R_SH_DIR8WPL: mask = 3; break;
3807 default: mask = 0; break;
3808 }
3809 if (disp & mask)
3810 {
4eca0228 3811 _bfd_error_handler
695344c0 3812 /* xgettext:c-format */
2dcf00ce
AM
3813 (_("%pB: %#" PRIx64 ": fatal: "
3814 "unaligned branch target for relax-support relocation"),
4eca0228 3815 input_section->owner,
2dcf00ce 3816 (uint64_t) rel->r_offset);
cd6ec716 3817 bfd_set_error (bfd_error_bad_value);
b34976b6 3818 return FALSE;
cd6ec716
DD
3819 }
3820 relocation -= 4;
3821 goto final_link_relocate;
3822 }
3823 r = bfd_reloc_ok;
3824 break;
37c644f2
AO
3825
3826 default:
3827 bfd_set_error (bfd_error_bad_value);
b34976b6 3828 return FALSE;
37c644f2 3829
d38eb334
DD
3830 case R_SH_DIR16:
3831 case R_SH_DIR8:
3832 case R_SH_DIR8U:
3833 case R_SH_DIR8S:
3834 case R_SH_DIR4U:
3835 goto final_link_relocate;
3836
3837 case R_SH_DIR8UL:
3838 case R_SH_DIR4UL:
3839 if (relocation & 3)
3840 {
4eca0228 3841 _bfd_error_handler
695344c0 3842 /* xgettext:c-format */
2dcf00ce
AM
3843 (_("%pB: %#" PRIx64 ": fatal: "
3844 "unaligned %s relocation %#" PRIx64),
3845 input_section->owner, (uint64_t) rel->r_offset,
3846 howto->name, (uint64_t) relocation);
d38eb334
DD
3847 bfd_set_error (bfd_error_bad_value);
3848 return FALSE;
3849 }
3850 goto final_link_relocate;
3851
3852 case R_SH_DIR8UW:
3853 case R_SH_DIR8SW:
3854 case R_SH_DIR4UW:
3855 if (relocation & 1)
3856 {
4eca0228 3857 _bfd_error_handler
695344c0 3858 /* xgettext:c-format */
2dcf00ce
AM
3859 (_("%pB: %#" PRIx64 ": fatal: "
3860 "unaligned %s relocation %#" PRIx64 ""),
4eca0228 3861 input_section->owner,
2dcf00ce
AM
3862 (uint64_t) rel->r_offset, howto->name,
3863 (uint64_t) relocation);
d38eb334
DD
3864 bfd_set_error (bfd_error_bad_value);
3865 return FALSE;
3866 }
3867 goto final_link_relocate;
3868
3869 case R_SH_PSHA:
3870 if ((signed int)relocation < -32
3871 || (signed int)relocation > 32)
3872 {
4eca0228 3873 _bfd_error_handler
695344c0 3874 /* xgettext:c-format */
2dcf00ce
AM
3875 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHA relocation %" PRId64
3876 " not in range -32..32"),
4eca0228 3877 input_section->owner,
2dcf00ce
AM
3878 (uint64_t) rel->r_offset,
3879 (int64_t) relocation);
d38eb334
DD
3880 bfd_set_error (bfd_error_bad_value);
3881 return FALSE;
3882 }
3883 goto final_link_relocate;
3884
3885 case R_SH_PSHL:
3886 if ((signed int)relocation < -16
3887 || (signed int)relocation > 16)
3888 {
4eca0228 3889 _bfd_error_handler
695344c0 3890 /* xgettext:c-format */
2dcf00ce
AM
3891 (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHL relocation %" PRId64
3892 " not in range -32..32"),
4eca0228 3893 input_section->owner,
2dcf00ce
AM
3894 (uint64_t) rel->r_offset,
3895 (int64_t) relocation);
d38eb334
DD
3896 bfd_set_error (bfd_error_bad_value);
3897 return FALSE;
3898 }
3899 goto final_link_relocate;
3900
37c644f2
AO
3901 case R_SH_DIR32:
3902 case R_SH_REL32:
0e1862bb 3903 if (bfd_link_pic (info)
04e534c3 3904 && (h == NULL
6ee6e05a
L
3905 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3906 && !resolved_to_zero)
04e534c3 3907 || h->root.type != bfd_link_hash_undefweak)
cf35638d 3908 && r_symndx != STN_UNDEF
37c644f2 3909 && (input_section->flags & SEC_ALLOC) != 0
3348747a 3910 && !is_vxworks_tls
46e993b9 3911 && (r_type == R_SH_DIR32
3d85aebe 3912 || !SYMBOL_CALLS_LOCAL (info, h)))
37c644f2
AO
3913 {
3914 Elf_Internal_Rela outrel;
947216bf 3915 bfd_byte *loc;
b34976b6 3916 bfd_boolean skip, relocate;
37c644f2
AO
3917
3918 /* When generating a shared object, these relocations
3919 are copied into the output file to be resolved at run
3920 time. */
3921
3922 if (sreloc == NULL)
3923 {
83bac4b0
NC
3924 sreloc = _bfd_elf_get_dynamic_reloc_section
3925 (input_bfd, input_section, /*rela?*/ TRUE);
3926 if (sreloc == NULL)
b34976b6 3927 return FALSE;
37c644f2
AO
3928 }
3929
b34976b6
AM
3930 skip = FALSE;
3931 relocate = FALSE;
37c644f2 3932
c629eae0
JJ
3933 outrel.r_offset =
3934 _bfd_elf_section_offset (output_bfd, info, input_section,
3935 rel->r_offset);
3936 if (outrel.r_offset == (bfd_vma) -1)
b34976b6 3937 skip = TRUE;
0bb2d96a 3938 else if (outrel.r_offset == (bfd_vma) -2)
b34976b6 3939 skip = TRUE, relocate = TRUE;
37c644f2
AO
3940 outrel.r_offset += (input_section->output_section->vma
3941 + input_section->output_offset);
3942
3943 if (skip)
0bb2d96a 3944 memset (&outrel, 0, sizeof outrel);
37c644f2
AO
3945 else if (r_type == R_SH_REL32)
3946 {
3947 BFD_ASSERT (h != NULL && h->dynindx != -1);
37c644f2 3948 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
146be91a 3949 outrel.r_addend
55e6e397
RS
3950 = (howto->partial_inplace
3951 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
3952 : addend);
37c644f2 3953 }
e0af1f53 3954 else if (fdpic_p
8e45593f
NC
3955 && (h == NULL
3956 || ((info->symbolic || h->dynindx == -1)
3957 && h->def_regular)))
3958 {
3959 int dynindx;
3960
3961 BFD_ASSERT (sec != NULL);
3962 BFD_ASSERT (sec->output_section != NULL);
3963 dynindx = elf_section_data (sec->output_section)->dynindx;
3964 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
3965 outrel.r_addend = relocation;
3966 outrel.r_addend
3967 += (howto->partial_inplace
3968 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
3969 : addend);
3970 outrel.r_addend -= sec->output_section->vma;
3971 }
37c644f2
AO
3972 else
3973 {
3974 /* h->dynindx may be -1 if this symbol was marked to
3975 become local. */
3976 if (h == NULL
3977 || ((info->symbolic || h->dynindx == -1)
f5385ebf 3978 && h->def_regular))
37c644f2 3979 {
55e6e397 3980 relocate = howto->partial_inplace;
37c644f2 3981 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
37c644f2
AO
3982 }
3983 else
3984 {
3985 BFD_ASSERT (h->dynindx != -1);
37c644f2 3986 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
37c644f2 3987 }
55e6e397
RS
3988 outrel.r_addend = relocation;
3989 outrel.r_addend
3990 += (howto->partial_inplace
3991 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
3992 : addend);
37c644f2
AO
3993 }
3994
947216bf
AM
3995 loc = sreloc->contents;
3996 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3997 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
37c644f2 3998
8e45593f
NC
3999 check_segment[0] = check_segment[1] = -1;
4000
37c644f2
AO
4001 /* If this reloc is against an external symbol, we do
4002 not want to fiddle with the addend. Otherwise, we
4003 need to include the symbol value so that it becomes
4004 an addend for the dynamic reloc. */
4005 if (! relocate)
4006 continue;
4007 }
0e1862bb 4008 else if (fdpic_p && !bfd_link_pic (info)
8e45593f
NC
4009 && r_type == R_SH_DIR32
4010 && (input_section->flags & SEC_ALLOC) != 0)
4011 {
4012 bfd_vma offset;
4013
e0af1f53
MR
4014 BFD_ASSERT (htab);
4015
8e45593f
NC
4016 if (sh_elf_osec_readonly_p (output_bfd,
4017 input_section->output_section))
4018 {
4eca0228 4019 _bfd_error_handler
695344c0 4020 /* xgettext:c-format */
2dcf00ce
AM
4021 (_("%pB(%pA+%#" PRIx64 "): "
4022 "cannot emit fixup to `%s' in read-only section"),
8e45593f
NC
4023 input_bfd,
4024 input_section,
2dcf00ce 4025 (uint64_t) rel->r_offset,
8e45593f
NC
4026 symname);
4027 return FALSE;
4028 }
4029
4030 offset = _bfd_elf_section_offset (output_bfd, info,
4031 input_section, rel->r_offset);
4032 if (offset != (bfd_vma)-1)
4033 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4034 input_section->output_section->vma
4035 + input_section->output_offset
4036 + rel->r_offset);
4037
4038 check_segment[0] = check_segment[1] = -1;
4039 }
a6f713fc
KK
4040 /* We don't want warnings for non-NULL tests on undefined weak
4041 symbols. */
4042 else if (r_type == R_SH_REL32
4043 && h
1b786873 4044 && h->root.type == bfd_link_hash_undefweak)
a6f713fc 4045 check_segment[0] = check_segment[1] = -1;
37c644f2
AO
4046 goto final_link_relocate;
4047
fbca6ad9 4048 case R_SH_GOTPLT32:
fbca6ad9
AO
4049 /* Relocation is to the entry for this symbol in the
4050 procedure linkage table. */
4051
4052 if (h == NULL
f5385ebf 4053 || h->forced_local
0e1862bb 4054 || ! bfd_link_pic (info)
fbca6ad9
AO
4055 || info->symbolic
4056 || h->dynindx == -1
4057 || h->plt.offset == (bfd_vma) -1
4058 || h->got.offset != (bfd_vma) -1)
4059 goto force_got;
4060
4061 /* Relocation is to the entry for this symbol in the global
4062 offset table extension for the procedure linkage table. */
fbca6ad9 4063
e0af1f53 4064 BFD_ASSERT (htab);
067653c5 4065 BFD_ASSERT (sgotplt != NULL);
fbca6ad9 4066 relocation = (sgotplt->output_offset
55e6e397
RS
4067 + (get_plt_index (htab->plt_info, h->plt.offset)
4068 + 3) * 4);
fbca6ad9
AO
4069
4070#ifdef GOT_BIAS
4071 relocation -= GOT_BIAS;
4072#endif
4073
4074 goto final_link_relocate;
4075
4076 force_got:
37c644f2 4077 case R_SH_GOT32:
8e45593f 4078 case R_SH_GOT20:
37c644f2
AO
4079 /* Relocation is to the entry for this symbol in the global
4080 offset table. */
067653c5 4081
e0af1f53 4082 BFD_ASSERT (htab);
067653c5 4083 BFD_ASSERT (sgot != NULL);
8e45593f 4084 check_segment[0] = check_segment[1] = -1;
37c644f2
AO
4085
4086 if (h != NULL)
4087 {
b34976b6 4088 bfd_boolean dyn;
37c644f2
AO
4089
4090 off = h->got.offset;
4091 BFD_ASSERT (off != (bfd_vma) -1);
4092
067653c5 4093 dyn = htab->root.dynamic_sections_created;
0e1862bb
L
4094 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4095 bfd_link_pic (info),
4096 h)
4097 || (bfd_link_pic (info)
3d85aebe 4098 && SYMBOL_REFERENCES_LOCAL (info, h))
6ee6e05a
L
4099 || ((ELF_ST_VISIBILITY (h->other)
4100 || resolved_to_zero)
04e534c3 4101 && h->root.type == bfd_link_hash_undefweak))
37c644f2
AO
4102 {
4103 /* This is actually a static link, or it is a
4104 -Bsymbolic link and the symbol is defined
4105 locally, or the symbol was forced to be local
4106 because of a version file. We must initialize
4107 this entry in the global offset table. Since the
4108 offset must always be a multiple of 4, we use the
4109 least significant bit to record whether we have
4110 initialized it already.
4111
4112 When doing a dynamic link, we create a .rela.got
4113 relocation entry to initialize the value. This
4114 is done in the finish_dynamic_symbol routine. */
4115 if ((off & 1) != 0)
4116 off &= ~1;
4117 else
4118 {
4119 bfd_put_32 (output_bfd, relocation,
4120 sgot->contents + off);
211dc24b 4121 h->got.offset |= 1;
8e45593f
NC
4122
4123 /* If we initialize the GOT entry here with a valid
4124 symbol address, also add a fixup. */
0e1862bb 4125 if (fdpic_p && !bfd_link_pic (info)
8e45593f
NC
4126 && sh_elf_hash_entry (h)->got_type == GOT_NORMAL
4127 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4128 || h->root.type != bfd_link_hash_undefweak))
4129 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4130 sgot->output_section->vma
4131 + sgot->output_offset
4132 + off);
37c644f2
AO
4133 }
4134 }
4135
8e45593f 4136 relocation = sh_elf_got_offset (htab) + off;
37c644f2
AO
4137 }
4138 else
4139 {
37c644f2
AO
4140 BFD_ASSERT (local_got_offsets != NULL
4141 && local_got_offsets[r_symndx] != (bfd_vma) -1);
4142
4143 off = local_got_offsets[r_symndx];
4144
4145 /* The offset must always be a multiple of 4. We use
4146 the least significant bit to record whether we have
4147 already generated the necessary reloc. */
4148 if ((off & 1) != 0)
4149 off &= ~1;
4150 else
4151 {
4152 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4153
0e1862bb 4154 if (bfd_link_pic (info))
37c644f2 4155 {
37c644f2 4156 Elf_Internal_Rela outrel;
947216bf 4157 bfd_byte *loc;
37c644f2 4158
37c644f2
AO
4159 outrel.r_offset = (sgot->output_section->vma
4160 + sgot->output_offset
4161 + off);
e0af1f53 4162 if (fdpic_p)
8e45593f
NC
4163 {
4164 int dynindx
4165 = elf_section_data (sec->output_section)->dynindx;
4166 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4167 outrel.r_addend = relocation;
4168 outrel.r_addend -= sec->output_section->vma;
4169 }
4170 else
4171 {
4172 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4173 outrel.r_addend = relocation;
4174 }
947216bf
AM
4175 loc = srelgot->contents;
4176 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4177 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
37c644f2 4178 }
e0af1f53 4179 else if (fdpic_p
8e45593f
NC
4180 && (sh_elf_local_got_type (input_bfd) [r_symndx]
4181 == GOT_NORMAL))
4182 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4183 sgot->output_section->vma
4184 + sgot->output_offset
4185 + off);
37c644f2 4186
211dc24b 4187 local_got_offsets[r_symndx] |= 1;
37c644f2
AO
4188 }
4189
8e45593f 4190 relocation = sh_elf_got_offset (htab) + off;
37c644f2
AO
4191 }
4192
fbca6ad9 4193#ifdef GOT_BIAS
067653c5 4194 relocation -= GOT_BIAS;
fbca6ad9
AO
4195#endif
4196
8e45593f
NC
4197 if (r_type == R_SH_GOT20)
4198 {
4199 r = install_movi20_field (output_bfd, relocation + addend,
4200 input_bfd, input_section, contents,
4201 rel->r_offset);
4202 break;
4203 }
4204 else
4205 goto final_link_relocate;
37c644f2
AO
4206
4207 case R_SH_GOTOFF:
8e45593f 4208 case R_SH_GOTOFF20:
8e45593f
NC
4209 /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
4210 we place at the start of the .got.plt section. This is the same
4211 as the start of the output .got section, unless there are function
4212 descriptors in front of it. */
e0af1f53 4213 BFD_ASSERT (htab);
8e45593f
NC
4214 BFD_ASSERT (sgotplt != NULL);
4215 check_segment[0] = got_segment;
4216 relocation -= sgotplt->output_section->vma + sgotplt->output_offset
4217 + htab->root.hgot->root.u.def.value;
37c644f2 4218
fbca6ad9
AO
4219#ifdef GOT_BIAS
4220 relocation -= GOT_BIAS;
4221#endif
4222
4223 addend = rel->r_addend;
4224
8e45593f
NC
4225 if (r_type == R_SH_GOTOFF20)
4226 {
4227 r = install_movi20_field (output_bfd, relocation + addend,
4228 input_bfd, input_section, contents,
4229 rel->r_offset);
4230 break;
4231 }
4232 else
4233 goto final_link_relocate;
37c644f2
AO
4234
4235 case R_SH_GOTPC:
4236 /* Use global offset table as symbol value. */
4237
8e45593f
NC
4238 BFD_ASSERT (sgotplt != NULL);
4239 relocation = sgotplt->output_section->vma + sgotplt->output_offset;
37c644f2 4240
fbca6ad9
AO
4241#ifdef GOT_BIAS
4242 relocation += GOT_BIAS;
4243#endif
4244
4245 addend = rel->r_addend;
4246
37c644f2
AO
4247 goto final_link_relocate;
4248
4249 case R_SH_PLT32:
4250 /* Relocation is to the entry for this symbol in the
4251 procedure linkage table. */
4252
4253 /* Resolve a PLT reloc against a local symbol directly,
4254 without using the procedure linkage table. */
4255 if (h == NULL)
4256 goto final_link_relocate;
4257
8e45593f
NC
4258 /* We don't want to warn on calls to undefined weak symbols,
4259 as calls to them must be protected by non-NULL tests
4260 anyway, and unprotected calls would invoke undefined
4261 behavior. */
4262 if (h->root.type == bfd_link_hash_undefweak)
4263 check_segment[0] = check_segment[1] = -1;
4264
f5385ebf 4265 if (h->forced_local)
37c644f2
AO
4266 goto final_link_relocate;
4267
4268 if (h->plt.offset == (bfd_vma) -1)
4269 {
4270 /* We didn't make a PLT entry for this symbol. This
4271 happens when statically linking PIC code, or when
4272 using -Bsymbolic. */
4273 goto final_link_relocate;
4274 }
4275
067653c5 4276 BFD_ASSERT (splt != NULL);
8e45593f 4277 check_segment[1] = plt_segment;
37c644f2
AO
4278 relocation = (splt->output_section->vma
4279 + splt->output_offset
4280 + h->plt.offset);
4281
fbca6ad9
AO
4282 addend = rel->r_addend;
4283
37c644f2
AO
4284 goto final_link_relocate;
4285
8e45593f
NC
4286 /* Relocation is to the canonical function descriptor for this
4287 symbol, possibly via the GOT. Initialize the GOT
4288 entry and function descriptor if necessary. */
4289 case R_SH_GOTFUNCDESC:
4290 case R_SH_GOTFUNCDESC20:
4291 case R_SH_FUNCDESC:
4292 {
4293 int dynindx = -1;
4294 asection *reloc_section;
4295 bfd_vma reloc_offset;
4296 int reloc_type = R_SH_FUNCDESC;
4297
e0af1f53
MR
4298 BFD_ASSERT (htab);
4299
8e45593f
NC
4300 check_segment[0] = check_segment[1] = -1;
4301
4302 /* FIXME: See what FRV does for global symbols in the
4303 executable, with --export-dynamic. Do they need ld.so
4304 to allocate official descriptors? See what this code
4305 does. */
4306
4307 relocation = 0;
4308 addend = 0;
4309
4310 if (r_type == R_SH_FUNCDESC)
4311 {
4312 reloc_section = input_section;
4313 reloc_offset = rel->r_offset;
4314 }
4315 else
4316 {
e0af1f53 4317 reloc_section = sgot;
8e45593f
NC
4318
4319 if (h != NULL)
4320 reloc_offset = h->got.offset;
4321 else
4322 {
4323 BFD_ASSERT (local_got_offsets != NULL);
4324 reloc_offset = local_got_offsets[r_symndx];
4325 }
4326 BFD_ASSERT (reloc_offset != MINUS_ONE);
4327
4328 if (reloc_offset & 1)
4329 {
4330 reloc_offset &= ~1;
4331 goto funcdesc_done_got;
4332 }
4333 }
4334
4335 if (h && h->root.type == bfd_link_hash_undefweak
4336 && (SYMBOL_CALLS_LOCAL (info, h)
4337 || !htab->root.dynamic_sections_created))
4338 /* Undefined weak symbol which will not be dynamically
4339 resolved later; leave it at zero. */
4340 goto funcdesc_leave_zero;
4341 else if (SYMBOL_CALLS_LOCAL (info, h)
4342 && ! SYMBOL_FUNCDESC_LOCAL (info, h))
4343 {
4344 /* If the symbol needs a non-local function descriptor
4345 but binds locally (i.e., its visibility is
4346 protected), emit a dynamic relocation decayed to
4347 section+offset. This is an optimization; the dynamic
4348 linker would resolve our function descriptor request
4349 to our copy of the function anyway. */
4350 dynindx = elf_section_data (h->root.u.def.section
4351 ->output_section)->dynindx;
4352 relocation += h->root.u.def.section->output_offset
4353 + h->root.u.def.value;
4354 }
4355 else if (! SYMBOL_FUNCDESC_LOCAL (info, h))
4356 {
4357 /* If the symbol is dynamic and there will be dynamic
4358 symbol resolution because we are or are linked with a
4359 shared library, emit a FUNCDESC relocation such that
4360 the dynamic linker will allocate the function
4361 descriptor. */
4362 BFD_ASSERT (h->dynindx != -1);
4363 dynindx = h->dynindx;
4364 }
4365 else
4366 {
4367 bfd_vma offset;
4368
4369 /* Otherwise, we know we have a private function
4370 descriptor, so reference it directly. */
4371 reloc_type = R_SH_DIR32;
4372 dynindx = elf_section_data (htab->sfuncdesc
4373 ->output_section)->dynindx;
4374
4375 if (h)
4376 {
4377 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4378 BFD_ASSERT (offset != MINUS_ONE);
4379 if ((offset & 1) == 0)
4380 {
4381 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4382 offset, NULL, 0))
4383 return FALSE;
4384 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4385 }
4386 }
4387 else
4388 {
4389 union gotref *local_funcdesc;
4390
4391 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4392 offset = local_funcdesc[r_symndx].offset;
4393 BFD_ASSERT (offset != MINUS_ONE);
4394 if ((offset & 1) == 0)
4395 {
4396 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4397 offset, sec,
4398 sym->st_value))
4399 return FALSE;
4400 local_funcdesc[r_symndx].offset |= 1;
4401 }
4402 }
4403
4404 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4405 }
4406
0e1862bb 4407 if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h))
8e45593f
NC
4408 {
4409 bfd_vma offset;
4410
4411 if (sh_elf_osec_readonly_p (output_bfd,
4412 reloc_section->output_section))
4413 {
4eca0228 4414 _bfd_error_handler
695344c0 4415 /* xgettext:c-format */
2dcf00ce
AM
4416 (_("%pB(%pA+%#" PRIx64 "): "
4417 "cannot emit fixup to `%s' in read-only section"),
8e45593f
NC
4418 input_bfd,
4419 input_section,
2dcf00ce 4420 (uint64_t) rel->r_offset,
8e45593f
NC
4421 symname);
4422 return FALSE;
4423 }
4424
4425 offset = _bfd_elf_section_offset (output_bfd, info,
4426 reloc_section, reloc_offset);
4427
4428 if (offset != (bfd_vma)-1)
4429 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4430 offset
4431 + reloc_section->output_section->vma
4432 + reloc_section->output_offset);
4433 }
4434 else if ((reloc_section->output_section->flags
4435 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
4436 {
4437 bfd_vma offset;
4438
4439 if (sh_elf_osec_readonly_p (output_bfd,
4440 reloc_section->output_section))
4441 {
4442 info->callbacks->warning
4443 (info,
4444 _("cannot emit dynamic relocations in read-only section"),
4445 symname, input_bfd, reloc_section, reloc_offset);
4446 return FALSE;
4447 }
4448
8e45593f
NC
4449 offset = _bfd_elf_section_offset (output_bfd, info,
4450 reloc_section, reloc_offset);
4451
4452 if (offset != (bfd_vma)-1)
4453 sh_elf_add_dyn_reloc (output_bfd, srelgot,
4454 offset
4455 + reloc_section->output_section->vma
4456 + reloc_section->output_offset,
4457 reloc_type, dynindx, relocation);
4458
4459 if (r_type == R_SH_FUNCDESC)
4460 {
4461 r = bfd_reloc_ok;
4462 break;
4463 }
4464 else
4465 {
4466 relocation = 0;
4467 goto funcdesc_leave_zero;
4468 }
4469 }
4470
4471 if (SYMBOL_FUNCDESC_LOCAL (info, h))
4472 relocation += htab->sfuncdesc->output_section->vma;
4473 funcdesc_leave_zero:
4474 if (r_type != R_SH_FUNCDESC)
4475 {
4476 bfd_put_32 (output_bfd, relocation,
4477 reloc_section->contents + reloc_offset);
4478 if (h != NULL)
4479 h->got.offset |= 1;
4480 else
4481 local_got_offsets[r_symndx] |= 1;
4482
4483 funcdesc_done_got:
4484
4485 relocation = sh_elf_got_offset (htab) + reloc_offset;
4486#ifdef GOT_BIAS
4487 relocation -= GOT_BIAS;
4488#endif
4489 }
4490 if (r_type == R_SH_GOTFUNCDESC20)
4491 {
4492 r = install_movi20_field (output_bfd, relocation + addend,
4493 input_bfd, input_section, contents,
4494 rel->r_offset);
4495 break;
4496 }
4497 else
4498 goto final_link_relocate;
4499 }
4500 break;
4501
4502 case R_SH_GOTOFFFUNCDESC:
4503 case R_SH_GOTOFFFUNCDESC20:
4504 /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
4505 executable and --export-dynamic. If such symbols get
4506 ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
4507 for them. */
e0af1f53 4508 BFD_ASSERT (htab);
8e45593f
NC
4509
4510 check_segment[0] = check_segment[1] = -1;
4511 relocation = 0;
4512 addend = rel->r_addend;
4513
4514 if (h && (h->root.type == bfd_link_hash_undefweak
4515 || !SYMBOL_FUNCDESC_LOCAL (info, h)))
4516 {
4517 _bfd_error_handler
695344c0 4518 /* xgettext:c-format */
2dcf00ce
AM
4519 (_("%pB(%pA+%#" PRIx64 "): "
4520 "%s relocation against external symbol \"%s\""),
4521 input_bfd, input_section, (uint64_t) rel->r_offset,
4522 howto->name, h->root.root.string);
8e45593f
NC
4523 return FALSE;
4524 }
4525 else
4526 {
4527 bfd_vma offset;
4528
4529 /* Otherwise, we know we have a private function
4530 descriptor, so reference it directly. */
4531 if (h)
4532 {
4533 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4534 BFD_ASSERT (offset != MINUS_ONE);
4535 if ((offset & 1) == 0)
4536 {
4537 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4538 offset, NULL, 0))
4539 return FALSE;
4540 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4541 }
4542 }
4543 else
4544 {
4545 union gotref *local_funcdesc;
4546
4547 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4548 offset = local_funcdesc[r_symndx].offset;
4549 BFD_ASSERT (offset != MINUS_ONE);
4550 if ((offset & 1) == 0)
4551 {
4552 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4553 offset, sec,
4554 sym->st_value))
4555 return FALSE;
4556 local_funcdesc[r_symndx].offset |= 1;
4557 }
4558 }
4559
4560 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4561 }
4562
e0af1f53
MR
4563 relocation -= (htab->root.hgot->root.u.def.value
4564 + sgotplt->output_offset);
8e45593f
NC
4565#ifdef GOT_BIAS
4566 relocation -= GOT_BIAS;
4567#endif
4568
4569 if (r_type == R_SH_GOTOFFFUNCDESC20)
4570 {
4571 r = install_movi20_field (output_bfd, relocation + addend,
4572 input_bfd, input_section, contents,
4573 rel->r_offset);
4574 break;
4575 }
4576 else
4577 goto final_link_relocate;
4578
37c644f2
AO
4579 case R_SH_LOOP_START:
4580 {
4581 static bfd_vma start, end;
4582
4583 start = (relocation + rel->r_addend
4584 - (sec->output_section->vma + sec->output_offset));
4585 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4586 rel->r_offset, sec, start, end);
4587 break;
4588
4589 case R_SH_LOOP_END:
4590 end = (relocation + rel->r_addend
4591 - (sec->output_section->vma + sec->output_offset));
4592 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
4593 rel->r_offset, sec, start, end);
4594 break;
4595 }
3376eaf5
KK
4596
4597 case R_SH_TLS_GD_32:
4598 case R_SH_TLS_IE_32:
e0af1f53 4599 BFD_ASSERT (htab);
8e45593f 4600 check_segment[0] = check_segment[1] = -1;
3376eaf5 4601 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
8e45593f 4602 got_type = GOT_UNKNOWN;
3376eaf5 4603 if (h == NULL && local_got_offsets)
8e45593f 4604 got_type = sh_elf_local_got_type (input_bfd) [r_symndx];
3376eaf5
KK
4605 else if (h != NULL)
4606 {
8e45593f 4607 got_type = sh_elf_hash_entry (h)->got_type;
0e1862bb 4608 if (! bfd_link_pic (info)
3376eaf5 4609 && (h->dynindx == -1
f5385ebf 4610 || h->def_regular))
267fb3c1 4611 r_type = R_SH_TLS_LE_32;
3376eaf5
KK
4612 }
4613
8e45593f 4614 if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE)
3376eaf5
KK
4615 r_type = R_SH_TLS_IE_32;
4616
4617 if (r_type == R_SH_TLS_LE_32)
4618 {
4619 bfd_vma offset;
4620 unsigned short insn;
3376eaf5
KK
4621
4622 if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
4623 {
4624 /* GD->LE transition:
4625 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
b34976b6 4626 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
3376eaf5
KK
4627 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4628 We change it into:
4629 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
4630 nop; nop; ...
4631 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
4632
4633 offset = rel->r_offset;
a05b9f5e
NC
4634 if (offset < 16)
4635 {
4636 _bfd_error_handler
4637 /* xgettext:c-format */
4638 (_("%pB(%pA): offset in relocation for GD->LE translation is too small: %#" PRIx64),
4639 input_bfd, input_section, (uint64_t) offset);
4640 return FALSE;
4641 }
4642
3376eaf5
KK
4643 /* Size of GD instructions is 16 or 18. */
4644 offset -= 16;
4645 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4646 if ((insn & 0xff00) == 0xc700)
4647 {
4648 BFD_ASSERT (offset >= 2);
4649 offset -= 2;
4650 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4651 }
4652
a05b9f5e
NC
4653 if ((insn & 0xff00) != 0xd400)
4654 _bfd_error_handler
4655 /* xgettext:c-format */ /* The backslash is to prevent bogus trigraph detection. */
4656 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd4?\?)"),
4657 input_bfd, input_section, (uint64_t) offset, (int) insn);
4658
3376eaf5 4659 insn = bfd_get_16 (input_bfd, contents + offset + 2);
a05b9f5e
NC
4660
4661 if ((insn & 0xff00) != 0xc700)
4662 _bfd_error_handler
4663 /* xgettext:c-format */
4664 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xc7?\?)"),
4665 input_bfd, input_section, (uint64_t) offset, (int) insn);
4666
3376eaf5 4667 insn = bfd_get_16 (input_bfd, contents + offset + 4);
a05b9f5e
NC
4668 if ((insn & 0xff00) != 0xd100)
4669 _bfd_error_handler
4670 /* xgettext:c-format */
4671 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd1?\?)"),
4672 input_bfd, input_section, (uint64_t) offset, (int) insn);
4673
3376eaf5 4674 insn = bfd_get_16 (input_bfd, contents + offset + 6);
a05b9f5e
NC
4675 if (insn != 0x310c)
4676 _bfd_error_handler
4677 /* xgettext:c-format */
4678 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x310c)"),
4679 input_bfd, input_section, (uint64_t) offset, (int) insn);
4680
3376eaf5 4681 insn = bfd_get_16 (input_bfd, contents + offset + 8);
a05b9f5e
NC
4682 if (insn != 0x410b)
4683 _bfd_error_handler
4684 /* xgettext:c-format */
4685 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x410b)"),
4686 input_bfd, input_section, (uint64_t) offset, (int) insn);
4687
3376eaf5 4688 insn = bfd_get_16 (input_bfd, contents + offset + 10);
a05b9f5e
NC
4689 if (insn != 0x34cc)
4690 _bfd_error_handler
4691 /* xgettext:c-format */
4692 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x34cc)"),
4693 input_bfd, input_section, (uint64_t) offset, (int) insn);
3376eaf5
KK
4694
4695 bfd_put_16 (output_bfd, 0x0012, contents + offset + 2);
4696 bfd_put_16 (output_bfd, 0x304c, contents + offset + 4);
4697 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
4698 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4699 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4700 }
4701 else
4702 {
91d6fa6a 4703 int target;
3376eaf5
KK
4704
4705 /* IE->LE transition:
a05b9f5e
NC
4706 mov.l 1f,r0;
4707 stc gbr,rN;
4708 mov.l @(r0,r12),rM;
4709 bra 2f;
4710 add ...;
4711 .align 2;
4712 1: x@GOTTPOFF;
4713 2:
3376eaf5 4714 We change it into:
a05b9f5e
NC
4715 mov.l .Ln,rM;
4716 stc gbr,rN;
4717 nop;
4718 ...;
4719 1: x@TPOFF;
4720 2:. */
3376eaf5
KK
4721
4722 offset = rel->r_offset;
a05b9f5e
NC
4723 if (offset < 16)
4724 {
4725 _bfd_error_handler
4726 /* xgettext:c-format */
4727 (_("%pB(%pA): offset in relocation for IE->LE translation is too small: %#" PRIx64),
4728 input_bfd, input_section, (uint64_t) offset);
4729 return FALSE;
4730 }
4731
3376eaf5
KK
4732 /* Size of IE instructions is 10 or 12. */
4733 offset -= 10;
4734 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4735 if ((insn & 0xf0ff) == 0x0012)
4736 {
4737 BFD_ASSERT (offset >= 2);
4738 offset -= 2;
4739 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4740 }
4741
a05b9f5e
NC
4742 if ((insn & 0xff00) != 0xd000)
4743 _bfd_error_handler
4744 /* xgettext:c-format */
4745 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd0??: mov.l)"),
4746 input_bfd, input_section, (uint64_t) offset, (int) insn);
4747
91d6fa6a 4748 target = insn & 0x00ff;
a05b9f5e 4749
3376eaf5 4750 insn = bfd_get_16 (input_bfd, contents + offset + 2);
a05b9f5e
NC
4751 if ((insn & 0xf0ff) != 0x0012)
4752 _bfd_error_handler
4753 /* xgettext:c-format */
4754 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?12: stc)"),
4755 input_bfd, input_section, (uint64_t) (offset + 2), (int) insn);
4756
3376eaf5 4757 insn = bfd_get_16 (input_bfd, contents + offset + 4);
a05b9f5e
NC
4758 if ((insn & 0xf0ff) != 0x00ce)
4759 _bfd_error_handler
4760 /* xgettext:c-format */
4761 (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?ce: mov.l)"),
4762 input_bfd, input_section, (uint64_t) (offset + 4), (int) insn);
4763
91d6fa6a 4764 insn = 0xd000 | (insn & 0x0f00) | target;
3376eaf5
KK
4765 bfd_put_16 (output_bfd, insn, contents + offset + 0);
4766 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
4767 }
4768
267fb3c1
KK
4769 bfd_put_32 (output_bfd, tpoff (info, relocation),
4770 contents + rel->r_offset);
3376eaf5
KK
4771 continue;
4772 }
4773
8e45593f 4774 if (sgot == NULL || sgotplt == NULL)
3376eaf5
KK
4775 abort ();
4776
4777 if (h != NULL)
4778 off = h->got.offset;
4779 else
4780 {
4781 if (local_got_offsets == NULL)
4782 abort ();
4783
4784 off = local_got_offsets[r_symndx];
4785 }
4786
267fb3c1
KK
4787 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
4788 if (r_type == R_SH_TLS_IE_32
4789 && ! htab->root.dynamic_sections_created)
4790 {
4791 off &= ~1;
4792 bfd_put_32 (output_bfd, tpoff (info, relocation),
4793 sgot->contents + off);
8e45593f 4794 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
267fb3c1
KK
4795 contents + rel->r_offset);
4796 continue;
4797 }
4798
3376eaf5
KK
4799 if ((off & 1) != 0)
4800 off &= ~1;
26e41594 4801 else
3376eaf5
KK
4802 {
4803 Elf_Internal_Rela outrel;
947216bf 4804 bfd_byte *loc;
3376eaf5
KK
4805 int dr_type, indx;
4806
3376eaf5
KK
4807 outrel.r_offset = (sgot->output_section->vma
4808 + sgot->output_offset + off);
4809
267fb3c1 4810 if (h == NULL || h->dynindx == -1)
c95b8a7a
KK
4811 indx = 0;
4812 else
4813 indx = h->dynindx;
267fb3c1 4814
3376eaf5
KK
4815 dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
4816 R_SH_TLS_TPOFF32);
4817 if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
4818 outrel.r_addend = relocation - dtpoff_base (info);
4819 else
4820 outrel.r_addend = 0;
4821 outrel.r_info = ELF32_R_INFO (indx, dr_type);
947216bf
AM
4822 loc = srelgot->contents;
4823 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3376eaf5
KK
4824 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4825
4826 if (r_type == R_SH_TLS_GD_32)
4827 {
4828 if (indx == 0)
4829 {
4830 bfd_put_32 (output_bfd,
4831 relocation - dtpoff_base (info),
4832 sgot->contents + off + 4);
4833 }
4834 else
4835 {
4836 outrel.r_info = ELF32_R_INFO (indx,
4837 R_SH_TLS_DTPOFF32);
4838 outrel.r_offset += 4;
4839 outrel.r_addend = 0;
4840 srelgot->reloc_count++;
947216bf
AM
4841 loc += sizeof (Elf32_External_Rela);
4842 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3376eaf5
KK
4843 }
4844 }
4845
4846 if (h != NULL)
4847 h->got.offset |= 1;
4848 else
4849 local_got_offsets[r_symndx] |= 1;
4850 }
4851
4852 if (off >= (bfd_vma) -2)
4853 abort ();
4854
4855 if (r_type == (int) ELF32_R_TYPE (rel->r_info))
8e45593f 4856 relocation = sh_elf_got_offset (htab) + off;
3376eaf5
KK
4857 else
4858 {
4859 bfd_vma offset;
4860 unsigned short insn;
4861
4862 /* GD->IE transition:
4863 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4864 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4865 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4866 We change it into:
4867 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
4868 nop; nop; bra 3f; nop; .align 2;
4869 1: .long x@TPOFF; 2:...; 3:. */
4870
4871 offset = rel->r_offset;
a05b9f5e
NC
4872 if (offset < 16)
4873 {
4874 _bfd_error_handler
4875 /* xgettext:c-format */
4876 (_("%pB(%pA): offset in relocation for GD->IE translation is too small: %#" PRIx64),
4877 input_bfd, input_section, (uint64_t) offset);
4878 return FALSE;
4879 }
4880
3376eaf5
KK
4881 /* Size of GD instructions is 16 or 18. */
4882 offset -= 16;
4883 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4884 if ((insn & 0xff00) == 0xc700)
4885 {
4886 BFD_ASSERT (offset >= 2);
4887 offset -= 2;
4888 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4889 }
4890
4891 BFD_ASSERT ((insn & 0xff00) == 0xd400);
4892
4893 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
4894 bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset);
4895
4896 insn = bfd_get_16 (input_bfd, contents + offset + 2);
4897 BFD_ASSERT ((insn & 0xff00) == 0xc700);
4898 insn = bfd_get_16 (input_bfd, contents + offset + 4);
4899 BFD_ASSERT ((insn & 0xff00) == 0xd100);
4900 insn = bfd_get_16 (input_bfd, contents + offset + 6);
4901 BFD_ASSERT (insn == 0x310c);
4902 insn = bfd_get_16 (input_bfd, contents + offset + 8);
4903 BFD_ASSERT (insn == 0x410b);
4904 insn = bfd_get_16 (input_bfd, contents + offset + 10);
4905 BFD_ASSERT (insn == 0x34cc);
4906
4907 bfd_put_16 (output_bfd, 0x0412, contents + offset + 2);
4908 bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4);
4909 bfd_put_16 (output_bfd, 0x304c, contents + offset + 6);
4910 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4911 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4912
8e45593f 4913 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
3376eaf5
KK
4914 contents + rel->r_offset);
4915
4916 continue;
4917 }
4918
4919 addend = rel->r_addend;
4920
4921 goto final_link_relocate;
4922
4923 case R_SH_TLS_LD_32:
e0af1f53 4924 BFD_ASSERT (htab);
8e45593f 4925 check_segment[0] = check_segment[1] = -1;
0e1862bb 4926 if (! bfd_link_pic (info))
3376eaf5
KK
4927 {
4928 bfd_vma offset;
4929 unsigned short insn;
4930
4931 /* LD->LE transition:
4932 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4933 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4934 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
4935 We change it into:
4936 stc gbr,r0; nop; nop; nop;
4937 nop; nop; bra 3f; ...; 3:. */
4938
4939 offset = rel->r_offset;
a05b9f5e
NC
4940 if (offset < 16)
4941 {
4942 _bfd_error_handler
4943 /* xgettext:c-format */
4944 (_("%pB(%pA): offset in relocation for LD->LE translation is too small: %#" PRIx64),
4945 input_bfd, input_section, (uint64_t) offset);
4946 return FALSE;
4947 }
4948
3376eaf5
KK
4949 /* Size of LD instructions is 16 or 18. */
4950 offset -= 16;
4951 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4952 if ((insn & 0xff00) == 0xc700)
4953 {
4954 BFD_ASSERT (offset >= 2);
4955 offset -= 2;
4956 insn = bfd_get_16 (input_bfd, contents + offset + 0);
4957 }
4958
4959 BFD_ASSERT ((insn & 0xff00) == 0xd400);
4960 insn = bfd_get_16 (input_bfd, contents + offset + 2);
4961 BFD_ASSERT ((insn & 0xff00) == 0xc700);
4962 insn = bfd_get_16 (input_bfd, contents + offset + 4);
4963 BFD_ASSERT ((insn & 0xff00) == 0xd100);
4964 insn = bfd_get_16 (input_bfd, contents + offset + 6);
4965 BFD_ASSERT (insn == 0x310c);
4966 insn = bfd_get_16 (input_bfd, contents + offset + 8);
4967 BFD_ASSERT (insn == 0x410b);
4968 insn = bfd_get_16 (input_bfd, contents + offset + 10);
4969 BFD_ASSERT (insn == 0x34cc);
4970
4971 bfd_put_16 (output_bfd, 0x0012, contents + offset + 0);
4972 bfd_put_16 (output_bfd, 0x0009, contents + offset + 2);
4973 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
4974 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
4975 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
4976 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
4977
4978 continue;
4979 }
4980
8e45593f 4981 if (sgot == NULL || sgotplt == NULL)
3376eaf5
KK
4982 abort ();
4983
4984 off = htab->tls_ldm_got.offset;
4985 if (off & 1)
4986 off &= ~1;
4987 else
4988 {
4989 Elf_Internal_Rela outrel;
947216bf 4990 bfd_byte *loc;
3376eaf5 4991
3376eaf5
KK
4992 outrel.r_offset = (sgot->output_section->vma
4993 + sgot->output_offset + off);
4994 outrel.r_addend = 0;
4995 outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32);
947216bf
AM
4996 loc = srelgot->contents;
4997 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3376eaf5
KK
4998 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4999 htab->tls_ldm_got.offset |= 1;
5000 }
5001
8e45593f 5002 relocation = sh_elf_got_offset (htab) + off;
3376eaf5
KK
5003 addend = rel->r_addend;
5004
5005 goto final_link_relocate;
5006
5007 case R_SH_TLS_LDO_32:
8e45593f 5008 check_segment[0] = check_segment[1] = -1;
0e1862bb 5009 if (! bfd_link_pic (info))
267fb3c1 5010 relocation = tpoff (info, relocation);
3376eaf5
KK
5011 else
5012 relocation -= dtpoff_base (info);
5013
5014 addend = rel->r_addend;
5015 goto final_link_relocate;
5016
5017 case R_SH_TLS_LE_32:
5018 {
5019 int indx;
5020 Elf_Internal_Rela outrel;
947216bf 5021 bfd_byte *loc;
3376eaf5 5022
8e45593f
NC
5023 check_segment[0] = check_segment[1] = -1;
5024
3cbc1e5e 5025 if (!bfd_link_dll (info))
267fb3c1
KK
5026 {
5027 relocation = tpoff (info, relocation);
5028 addend = rel->r_addend;
5029 goto final_link_relocate;
5030 }
5031
3376eaf5
KK
5032 if (sreloc == NULL)
5033 {
83bac4b0
NC
5034 sreloc = _bfd_elf_get_dynamic_reloc_section
5035 (input_bfd, input_section, /*rela?*/ TRUE);
5036 if (sreloc == NULL)
b34976b6 5037 return FALSE;
3376eaf5
KK
5038 }
5039
267fb3c1
KK
5040 if (h == NULL || h->dynindx == -1)
5041 indx = 0;
5042 else
5043 indx = h->dynindx;
5044
3376eaf5
KK
5045 outrel.r_offset = (input_section->output_section->vma
5046 + input_section->output_offset
5047 + rel->r_offset);
5048 outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
5049 if (indx == 0)
5050 outrel.r_addend = relocation - dtpoff_base (info);
5051 else
5052 outrel.r_addend = 0;
3376eaf5 5053
947216bf
AM
5054 loc = sreloc->contents;
5055 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5056 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3376eaf5
KK
5057 continue;
5058 }
37c644f2
AO
5059 }
5060
146be91a 5061 relocation_done:
e0af1f53 5062 if (fdpic_p && check_segment[0] != (unsigned) -1
8e45593f
NC
5063 && check_segment[0] != check_segment[1])
5064 {
5065 /* We don't want duplicate errors for undefined symbols. */
5066 if (!h || h->root.type != bfd_link_hash_undefined)
5067 {
0e1862bb 5068 if (bfd_link_pic (info))
8e45593f
NC
5069 {
5070 info->callbacks->einfo
695344c0 5071 /* xgettext:c-format */
8e45593f
NC
5072 (_("%X%C: relocation to \"%s\" references a different segment\n"),
5073 input_bfd, input_section, rel->r_offset, symname);
5074 return FALSE;
5075 }
5076 else
5077 info->callbacks->einfo
695344c0 5078 /* xgettext:c-format */
8e45593f
NC
5079 (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5080 input_bfd, input_section, rel->r_offset, symname);
5081 }
5082
fbedb42d 5083 elf_elfheader (output_bfd)->e_flags |= EF_SH_PIC;
8e45593f
NC
5084 }
5085
37c644f2
AO
5086 if (r != bfd_reloc_ok)
5087 {
5088 switch (r)
5089 {
5090 default:
5091 case bfd_reloc_outofrange:
5092 abort ();
5093 case bfd_reloc_overflow:
5094 {
5095 const char *name;
5096
5097 if (h != NULL)
dfeffb9f 5098 name = NULL;
37c644f2
AO
5099 else
5100 {
252b5132
RH
5101 name = (bfd_elf_string_from_elf_section
5102 (input_bfd, symtab_hdr->sh_link, sym->st_name));
5103 if (name == NULL)
b34976b6 5104 return FALSE;
252b5132 5105 if (*name == '\0')
fd361982 5106 name = bfd_section_name (sec);
252b5132 5107 }
1a72702b
AM
5108 (*info->callbacks->reloc_overflow)
5109 (info, (h ? &h->root : NULL), name, howto->name,
5110 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
252b5132
RH
5111 }
5112 break;
5113 }
5114 }
5115 }
5116
b34976b6 5117 return TRUE;
252b5132
RH
5118}
5119
5120/* This is a version of bfd_generic_get_relocated_section_contents
5121 which uses sh_elf_relocate_section. */
5122
5123static bfd_byte *
09fd220b
KK
5124sh_elf_get_relocated_section_contents (bfd *output_bfd,
5125 struct bfd_link_info *link_info,
5126 struct bfd_link_order *link_order,
5127 bfd_byte *data,
5128 bfd_boolean relocatable,
5129 asymbol **symbols)
252b5132
RH
5130{
5131 Elf_Internal_Shdr *symtab_hdr;
5132 asection *input_section = link_order->u.indirect.section;
5133 bfd *input_bfd = input_section->owner;
5134 asection **sections = NULL;
5135 Elf_Internal_Rela *internal_relocs = NULL;
6cdc0ccc 5136 Elf_Internal_Sym *isymbuf = NULL;
252b5132
RH
5137
5138 /* We only need to handle the case of relaxing, or of having a
5139 particular set of section contents, specially. */
1049f94e 5140 if (relocatable
252b5132
RH
5141 || elf_section_data (input_section)->this_hdr.contents == NULL)
5142 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
5143 link_order, data,
1049f94e 5144 relocatable,
252b5132
RH
5145 symbols);
5146
0ffa91dd 5147 symtab_hdr = &elf_symtab_hdr (input_bfd);
252b5132
RH
5148
5149 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
eea6121a 5150 (size_t) input_section->size);
252b5132
RH
5151
5152 if ((input_section->flags & SEC_RELOC) != 0
5153 && input_section->reloc_count > 0)
5154 {
252b5132 5155 asection **secpp;
6cdc0ccc 5156 Elf_Internal_Sym *isym, *isymend;
9ad5cbcf 5157 bfd_size_type amt;
252b5132 5158
45d6a902 5159 internal_relocs = (_bfd_elf_link_read_relocs
09fd220b 5160 (input_bfd, input_section, NULL,
b34976b6 5161 (Elf_Internal_Rela *) NULL, FALSE));
252b5132
RH
5162 if (internal_relocs == NULL)
5163 goto error_return;
5164
6cdc0ccc
AM
5165 if (symtab_hdr->sh_info != 0)
5166 {
5167 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5168 if (isymbuf == NULL)
5169 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
5170 symtab_hdr->sh_info, 0,
5171 NULL, NULL, NULL);
5172 if (isymbuf == NULL)
5173 goto error_return;
5174 }
252b5132 5175
9ad5cbcf
AM
5176 amt = symtab_hdr->sh_info;
5177 amt *= sizeof (asection *);
5178 sections = (asection **) bfd_malloc (amt);
5179 if (sections == NULL && amt != 0)
252b5132
RH
5180 goto error_return;
5181
6cdc0ccc
AM
5182 isymend = isymbuf + symtab_hdr->sh_info;
5183 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
252b5132
RH
5184 {
5185 asection *isec;
5186
6cdc0ccc 5187 if (isym->st_shndx == SHN_UNDEF)
252b5132 5188 isec = bfd_und_section_ptr;
6cdc0ccc 5189 else if (isym->st_shndx == SHN_ABS)
252b5132 5190 isec = bfd_abs_section_ptr;
6cdc0ccc 5191 else if (isym->st_shndx == SHN_COMMON)
252b5132
RH
5192 isec = bfd_com_section_ptr;
5193 else
6cdc0ccc 5194 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
252b5132
RH
5195
5196 *secpp = isec;
5197 }
5198
5199 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5200 input_section, data, internal_relocs,
6cdc0ccc 5201 isymbuf, sections))
252b5132
RH
5202 goto error_return;
5203
c9594989
AM
5204 free (sections);
5205 if (symtab_hdr->contents != (unsigned char *) isymbuf)
6cdc0ccc
AM
5206 free (isymbuf);
5207 if (elf_section_data (input_section)->relocs != internal_relocs)
252b5132 5208 free (internal_relocs);
252b5132
RH
5209 }
5210
5211 return data;
5212
5213 error_return:
c9594989
AM
5214 free (sections);
5215 if (symtab_hdr->contents != (unsigned char *) isymbuf)
6cdc0ccc 5216 free (isymbuf);
c9594989 5217 if (elf_section_data (input_section)->relocs != internal_relocs)
6cdc0ccc 5218 free (internal_relocs);
252b5132
RH
5219 return NULL;
5220}
917583ad 5221
3376eaf5
KK
5222/* Return the base VMA address which should be subtracted from real addresses
5223 when resolving @dtpoff relocation.
5224 This is PT_TLS segment p_vaddr. */
5225
5226static bfd_vma
09fd220b 5227dtpoff_base (struct bfd_link_info *info)
3376eaf5 5228{
e1918d23
AM
5229 /* If tls_sec is NULL, we should have signalled an error already. */
5230 if (elf_hash_table (info)->tls_sec == NULL)
267fb3c1 5231 return 0;
e1918d23 5232 return elf_hash_table (info)->tls_sec->vma;
3376eaf5
KK
5233}
5234
267fb3c1
KK
5235/* Return the relocation value for R_SH_TLS_TPOFF32.. */
5236
5237static bfd_vma
09fd220b 5238tpoff (struct bfd_link_info *info, bfd_vma address)
267fb3c1 5239{
e1918d23
AM
5240 /* If tls_sec is NULL, we should have signalled an error already. */
5241 if (elf_hash_table (info)->tls_sec == NULL)
267fb3c1
KK
5242 return 0;
5243 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5244 structure which has 2 pointer fields. */
044ad7e3
KK
5245 return (address - elf_hash_table (info)->tls_sec->vma
5246 + align_power ((bfd_vma) 8,
5247 elf_hash_table (info)->tls_sec->alignment_power));
267fb3c1
KK
5248}
5249
252b5132 5250static asection *
09fd220b 5251sh_elf_gc_mark_hook (asection *sec,
07adf181
AM
5252 struct bfd_link_info *info,
5253 Elf_Internal_Rela *rel,
5254 struct elf_link_hash_entry *h,
09fd220b 5255 Elf_Internal_Sym *sym)
252b5132
RH
5256{
5257 if (h != NULL)
07adf181
AM
5258 switch (ELF32_R_TYPE (rel->r_info))
5259 {
5260 case R_SH_GNU_VTINHERIT:
5261 case R_SH_GNU_VTENTRY:
5262 return NULL;
5263 }
9ad5cbcf 5264
07adf181 5265 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH
5266}
5267
067653c5
AM
5268/* Copy the extra info we tack onto an elf_link_hash_entry. */
5269
5270static void
fcfa13d2 5271sh_elf_copy_indirect_symbol (struct bfd_link_info *info,
09fd220b
KK
5272 struct elf_link_hash_entry *dir,
5273 struct elf_link_hash_entry *ind)
067653c5
AM
5274{
5275 struct elf_sh_link_hash_entry *edir, *eind;
5276
5277 edir = (struct elf_sh_link_hash_entry *) dir;
5278 eind = (struct elf_sh_link_hash_entry *) ind;
5279
4989d792
SC
5280 edir->gotplt_refcount = eind->gotplt_refcount;
5281 eind->gotplt_refcount = 0;
8e45593f 5282 edir->funcdesc.refcount += eind->funcdesc.refcount;
68ffbac6 5283 eind->funcdesc.refcount = 0;
8e45593f 5284 edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount;
68ffbac6 5285 eind->abs_funcdesc_refcount = 0;
067653c5 5286
3376eaf5
KK
5287 if (ind->root.type == bfd_link_hash_indirect
5288 && dir->got.refcount <= 0)
5289 {
8e45593f
NC
5290 edir->got_type = eind->got_type;
5291 eind->got_type = GOT_UNKNOWN;
3376eaf5
KK
5292 }
5293
04e534c3 5294 if (ind->root.type != bfd_link_hash_indirect
f5385ebf
AM
5295 && dir->dynamic_adjusted)
5296 {
5297 /* If called to transfer flags for a weakdef during processing
5298 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
5299 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
e81830c5
AM
5300 if (dir->versioned != versioned_hidden)
5301 dir->ref_dynamic |= ind->ref_dynamic;
f5385ebf
AM
5302 dir->ref_regular |= ind->ref_regular;
5303 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
5304 dir->needs_plt |= ind->needs_plt;
5305 }
04e534c3 5306 else
fcfa13d2 5307 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
067653c5
AM
5308}
5309
3376eaf5 5310static int
09fd220b
KK
5311sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
5312 int is_local)
3376eaf5 5313{
0e1862bb 5314 if (bfd_link_pic (info))
3376eaf5
KK
5315 return r_type;
5316
5317 switch (r_type)
5318 {
5319 case R_SH_TLS_GD_32:
5320 case R_SH_TLS_IE_32:
5321 if (is_local)
5322 return R_SH_TLS_LE_32;
5323 return R_SH_TLS_IE_32;
5324 case R_SH_TLS_LD_32:
5325 return R_SH_TLS_LE_32;
5326 }
5327
5328 return r_type;
5329}
5330
252b5132
RH
5331/* Look through the relocs for a section during the first phase.
5332 Since we don't do .gots or .plts, we just need to consider the
5333 virtual table relocs for gc. */
435b1e90 5334
b34976b6 5335static bfd_boolean
09fd220b
KK
5336sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
5337 const Elf_Internal_Rela *relocs)
252b5132
RH
5338{
5339 Elf_Internal_Shdr *symtab_hdr;
5582a088 5340 struct elf_link_hash_entry **sym_hashes;
067653c5 5341 struct elf_sh_link_hash_table *htab;
252b5132
RH
5342 const Elf_Internal_Rela *rel;
5343 const Elf_Internal_Rela *rel_end;
37c644f2 5344 asection *sreloc;
3376eaf5 5345 unsigned int r_type;
85e02784 5346 enum got_type got_type, old_got_type;
435b1e90 5347
37c644f2
AO
5348 sreloc = NULL;
5349
0e1862bb 5350 if (bfd_link_relocatable (info))
b34976b6 5351 return TRUE;
435b1e90 5352
65281396
AM
5353 /* Don't do anything special with non-loaded, non-alloced sections.
5354 In particular, any relocs in such sections should not affect GOT
5355 and PLT reference counting (ie. we don't allow them to create GOT
5356 or PLT entries), there's no possibility or desire to optimize TLS
5357 relocs, and there's not much point in propagating relocs to shared
5358 libs that the dynamic linker won't relocate. */
5359 if ((sec->flags & SEC_ALLOC) == 0)
5360 return TRUE;
5361
0ffa91dd
NC
5362 BFD_ASSERT (is_sh_elf (abfd));
5363
5364 symtab_hdr = &elf_symtab_hdr (abfd);
252b5132 5365 sym_hashes = elf_sym_hashes (abfd);
435b1e90 5366
067653c5 5367 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
5368 if (htab == NULL)
5369 return FALSE;
5370
252b5132
RH
5371 rel_end = relocs + sec->reloc_count;
5372 for (rel = relocs; rel < rel_end; rel++)
5373 {
5374 struct elf_link_hash_entry *h;
5375 unsigned long r_symndx;
435b1e90 5376
252b5132 5377 r_symndx = ELF32_R_SYM (rel->r_info);
3376eaf5
KK
5378 r_type = ELF32_R_TYPE (rel->r_info);
5379
252b5132 5380 if (r_symndx < symtab_hdr->sh_info)
435b1e90 5381 h = NULL;
252b5132 5382 else
396a6083
SC
5383 {
5384 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
396a6083
SC
5385 while (h->root.type == bfd_link_hash_indirect
5386 || h->root.type == bfd_link_hash_warning)
211dc24b 5387 h = (struct elf_link_hash_entry *) h->root.u.i.link;
396a6083 5388 }
435b1e90 5389
3376eaf5 5390 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
0e1862bb 5391 if (! bfd_link_pic (info)
3376eaf5
KK
5392 && r_type == R_SH_TLS_IE_32
5393 && h != NULL
5394 && h->root.type != bfd_link_hash_undefined
5395 && h->root.type != bfd_link_hash_undefweak
5396 && (h->dynindx == -1
f5385ebf 5397 || h->def_regular))
3376eaf5
KK
5398 r_type = R_SH_TLS_LE_32;
5399
8e45593f
NC
5400 if (htab->fdpic_p)
5401 switch (r_type)
5402 {
5403 case R_SH_GOTOFFFUNCDESC:
5404 case R_SH_GOTOFFFUNCDESC20:
5405 case R_SH_FUNCDESC:
5406 case R_SH_GOTFUNCDESC:
5407 case R_SH_GOTFUNCDESC20:
5408 if (h != NULL)
5409 {
5410 if (h->dynindx == -1)
5411 switch (ELF_ST_VISIBILITY (h->other))
5412 {
5413 case STV_INTERNAL:
5414 case STV_HIDDEN:
5415 break;
5416 default:
5417 bfd_elf_link_record_dynamic_symbol (info, h);
5418 break;
5419 }
5420 }
5421 break;
5422 }
5423
37c644f2 5424 /* Some relocs require a global offset table. */
ce558b89 5425 if (htab->root.sgot == NULL)
37c644f2 5426 {
3376eaf5 5427 switch (r_type)
37c644f2 5428 {
8e45593f
NC
5429 case R_SH_DIR32:
5430 /* This may require an rofixup. */
5431 if (!htab->fdpic_p)
5432 break;
1a0670f3 5433 /* Fall through. */
fbca6ad9 5434 case R_SH_GOTPLT32:
37c644f2 5435 case R_SH_GOT32:
8e45593f 5436 case R_SH_GOT20:
37c644f2 5437 case R_SH_GOTOFF:
8e45593f
NC
5438 case R_SH_GOTOFF20:
5439 case R_SH_FUNCDESC:
5440 case R_SH_GOTFUNCDESC:
5441 case R_SH_GOTFUNCDESC20:
5442 case R_SH_GOTOFFFUNCDESC:
5443 case R_SH_GOTOFFFUNCDESC20:
37c644f2 5444 case R_SH_GOTPC:
3376eaf5
KK
5445 case R_SH_TLS_GD_32:
5446 case R_SH_TLS_LD_32:
5447 case R_SH_TLS_IE_32:
8e45593f
NC
5448 if (htab->root.dynobj == NULL)
5449 htab->root.dynobj = abfd;
5450 if (!create_got_section (htab->root.dynobj, info))
5451 return FALSE;
37c644f2
AO
5452 break;
5453
5454 default:
5455 break;
5456 }
5457 }
5458
3376eaf5 5459 switch (r_type)
067653c5
AM
5460 {
5461 /* This relocation describes the C++ object vtable hierarchy.
5462 Reconstruct it for later use during GC. */
435b1e90 5463 case R_SH_GNU_VTINHERIT:
c152c796 5464 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 5465 return FALSE;
435b1e90
KH
5466 break;
5467
067653c5
AM
5468 /* This relocation describes which C++ vtable entries are actually
5469 used. Record for later use during GC. */
435b1e90 5470 case R_SH_GNU_VTENTRY:
a0ea3a14 5471 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 5472 return FALSE;
435b1e90 5473 break;
37c644f2 5474
3376eaf5 5475 case R_SH_TLS_IE_32:
0e1862bb 5476 if (bfd_link_pic (info))
3376eaf5
KK
5477 info->flags |= DF_STATIC_TLS;
5478
5479 /* FALLTHROUGH */
267fb3c1 5480 force_got:
3376eaf5 5481 case R_SH_TLS_GD_32:
37c644f2 5482 case R_SH_GOT32:
8e45593f 5483 case R_SH_GOT20:
8e45593f
NC
5484 case R_SH_GOTFUNCDESC:
5485 case R_SH_GOTFUNCDESC20:
3376eaf5
KK
5486 switch (r_type)
5487 {
5488 default:
8e45593f 5489 got_type = GOT_NORMAL;
3376eaf5
KK
5490 break;
5491 case R_SH_TLS_GD_32:
8e45593f 5492 got_type = GOT_TLS_GD;
3376eaf5
KK
5493 break;
5494 case R_SH_TLS_IE_32:
8e45593f
NC
5495 got_type = GOT_TLS_IE;
5496 break;
5497 case R_SH_GOTFUNCDESC:
5498 case R_SH_GOTFUNCDESC20:
5499 got_type = GOT_FUNCDESC;
3376eaf5
KK
5500 break;
5501 }
5502
37c644f2 5503 if (h != NULL)
3376eaf5 5504 {
211dc24b 5505 h->got.refcount += 1;
8e45593f 5506 old_got_type = sh_elf_hash_entry (h)->got_type;
3376eaf5 5507 }
37c644f2
AO
5508 else
5509 {
067653c5
AM
5510 bfd_signed_vma *local_got_refcounts;
5511
435b1e90 5512 /* This is a global offset table entry for a local
067653c5
AM
5513 symbol. */
5514 local_got_refcounts = elf_local_got_refcounts (abfd);
5515 if (local_got_refcounts == NULL)
37c644f2 5516 {
dc810e39 5517 bfd_size_type size;
37c644f2 5518
dc810e39 5519 size = symtab_hdr->sh_info;
067653c5 5520 size *= sizeof (bfd_signed_vma);
3376eaf5 5521 size += symtab_hdr->sh_info;
067653c5
AM
5522 local_got_refcounts = ((bfd_signed_vma *)
5523 bfd_zalloc (abfd, size));
5524 if (local_got_refcounts == NULL)
b34976b6 5525 return FALSE;
067653c5 5526 elf_local_got_refcounts (abfd) = local_got_refcounts;
8e45593f 5527 sh_elf_local_got_type (abfd)
3376eaf5 5528 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
37c644f2 5529 }
211dc24b 5530 local_got_refcounts[r_symndx] += 1;
8e45593f 5531 old_got_type = sh_elf_local_got_type (abfd) [r_symndx];
3376eaf5
KK
5532 }
5533
5534 /* If a TLS symbol is accessed using IE at least once,
5535 there is no point to use dynamic model for it. */
8e45593f
NC
5536 if (old_got_type != got_type && old_got_type != GOT_UNKNOWN
5537 && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE))
3376eaf5 5538 {
8e45593f
NC
5539 if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD)
5540 got_type = GOT_TLS_IE;
3376eaf5
KK
5541 else
5542 {
8e45593f
NC
5543 if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC)
5544 && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL))
4eca0228 5545 _bfd_error_handler
695344c0 5546 /* xgettext:c-format */
871b3ab2 5547 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
8e45593f
NC
5548 abfd, h->root.root.string);
5549 else if (old_got_type == GOT_FUNCDESC
5550 || got_type == GOT_FUNCDESC)
4eca0228 5551 _bfd_error_handler
695344c0 5552 /* xgettext:c-format */
871b3ab2 5553 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
8e45593f
NC
5554 abfd, h->root.root.string);
5555 else
4eca0228 5556 _bfd_error_handler
695344c0 5557 /* xgettext:c-format */
871b3ab2 5558 (_("%pB: `%s' accessed both as normal and thread local symbol"),
4eca0228 5559 abfd, h->root.root.string);
b34976b6 5560 return FALSE;
3376eaf5
KK
5561 }
5562 }
5563
8e45593f 5564 if (old_got_type != got_type)
3376eaf5
KK
5565 {
5566 if (h != NULL)
8e45593f 5567 sh_elf_hash_entry (h)->got_type = got_type;
3376eaf5 5568 else
8e45593f 5569 sh_elf_local_got_type (abfd) [r_symndx] = got_type;
37c644f2 5570 }
3376eaf5
KK
5571
5572 break;
5573
5574 case R_SH_TLS_LD_32:
5575 sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
37c644f2
AO
5576 break;
5577
8e45593f
NC
5578 case R_SH_FUNCDESC:
5579 case R_SH_GOTOFFFUNCDESC:
5580 case R_SH_GOTOFFFUNCDESC20:
5581 if (rel->r_addend)
5582 {
4eca0228 5583 _bfd_error_handler
871b3ab2 5584 (_("%pB: Function descriptor relocation with non-zero addend"),
8e45593f
NC
5585 abfd);
5586 return FALSE;
5587 }
5588
5589 if (h == NULL)
5590 {
5591 union gotref *local_funcdesc;
5592
5593 /* We need a function descriptor for a local symbol. */
5594 local_funcdesc = sh_elf_local_funcdesc (abfd);
5595 if (local_funcdesc == NULL)
5596 {
5597 bfd_size_type size;
5598
5599 size = symtab_hdr->sh_info * sizeof (union gotref);
8e45593f
NC
5600 local_funcdesc = (union gotref *) bfd_zalloc (abfd, size);
5601 if (local_funcdesc == NULL)
5602 return FALSE;
5603 sh_elf_local_funcdesc (abfd) = local_funcdesc;
5604 }
5605 local_funcdesc[r_symndx].refcount += 1;
5606
5607 if (r_type == R_SH_FUNCDESC)
5608 {
0e1862bb 5609 if (!bfd_link_pic (info))
8e45593f
NC
5610 htab->srofixup->size += 4;
5611 else
ce558b89 5612 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
8e45593f
NC
5613 }
5614 }
5615 else
5616 {
5617 sh_elf_hash_entry (h)->funcdesc.refcount++;
5618 if (r_type == R_SH_FUNCDESC)
5619 sh_elf_hash_entry (h)->abs_funcdesc_refcount++;
5620
5621 /* If there is a function descriptor reference, then
5622 there should not be any non-FDPIC references. */
5623 old_got_type = sh_elf_hash_entry (h)->got_type;
5624 if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN)
5625 {
5626 if (old_got_type == GOT_NORMAL)
4eca0228 5627 _bfd_error_handler
695344c0 5628 /* xgettext:c-format */
871b3ab2 5629 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
8e45593f
NC
5630 abfd, h->root.root.string);
5631 else
4eca0228 5632 _bfd_error_handler
695344c0 5633 /* xgettext:c-format */
871b3ab2 5634 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
8e45593f
NC
5635 abfd, h->root.root.string);
5636 }
5637 }
5638 break;
5639
fbca6ad9 5640 case R_SH_GOTPLT32:
fbca6ad9
AO
5641 /* If this is a local symbol, we resolve it directly without
5642 creating a procedure linkage table entry. */
5643
5644 if (h == NULL
f5385ebf 5645 || h->forced_local
0e1862bb 5646 || ! bfd_link_pic (info)
fbca6ad9 5647 || info->symbolic
067653c5 5648 || h->dynindx == -1)
fbca6ad9
AO
5649 goto force_got;
5650
f5385ebf 5651 h->needs_plt = 1;
067653c5 5652 h->plt.refcount += 1;
4989d792 5653 ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
fbca6ad9
AO
5654
5655 break;
5656
37c644f2
AO
5657 case R_SH_PLT32:
5658 /* This symbol requires a procedure linkage table entry. We
5659 actually build the entry in adjust_dynamic_symbol,
5660 because this might be a case of linking PIC code which is
5661 never referenced by a dynamic object, in which case we
5662 don't need to generate a procedure linkage table entry
5663 after all. */
5664
5665 /* If this is a local symbol, we resolve it directly without
5666 creating a procedure linkage table entry. */
5667 if (h == NULL)
5668 continue;
5669
f5385ebf 5670 if (h->forced_local)
37c644f2
AO
5671 break;
5672
f5385ebf 5673 h->needs_plt = 1;
067653c5 5674 h->plt.refcount += 1;
37c644f2
AO
5675 break;
5676
5677 case R_SH_DIR32:
5678 case R_SH_REL32:
0e1862bb 5679 if (h != NULL && ! bfd_link_pic (info))
067653c5 5680 {
f5385ebf 5681 h->non_got_ref = 1;
067653c5
AM
5682 h->plt.refcount += 1;
5683 }
37c644f2
AO
5684
5685 /* If we are creating a shared library, and this is a reloc
5686 against a global symbol, or a non PC relative reloc
5687 against a local symbol, then we need to copy the reloc
5688 into the shared library. However, if we are linking with
5689 -Bsymbolic, we do not need to copy a reloc against a
5690 global symbol which is defined in an object we are
5691 including in the link (i.e., DEF_REGULAR is set). At
5692 this point we have not seen all the input files, so it is
5693 possible that DEF_REGULAR is not set now but will be set
5694 later (it is never cleared). We account for that
5695 possibility below by storing information in the
067653c5
AM
5696 dyn_relocs field of the hash table entry. A similar
5697 situation occurs when creating shared libraries and symbol
5698 visibility changes render the symbol local.
5699
5700 If on the other hand, we are creating an executable, we
5701 may need to keep relocations for symbols satisfied by a
5702 dynamic library if we manage to avoid copy relocs for the
5703 symbol. */
0e1862bb 5704 if ((bfd_link_pic (info)
067653c5 5705 && (sec->flags & SEC_ALLOC) != 0
3376eaf5 5706 && (r_type != R_SH_REL32
067653c5
AM
5707 || (h != NULL
5708 && (! info->symbolic
5709 || h->root.type == bfd_link_hash_defweak
f5385ebf 5710 || !h->def_regular))))
0e1862bb 5711 || (! bfd_link_pic (info)
067653c5
AM
5712 && (sec->flags & SEC_ALLOC) != 0
5713 && h != NULL
5714 && (h->root.type == bfd_link_hash_defweak
f5385ebf 5715 || !h->def_regular)))
37c644f2 5716 {
3bf083ed
AM
5717 struct elf_dyn_relocs *p;
5718 struct elf_dyn_relocs **head;
067653c5 5719
2293c499
AM
5720 if (htab->root.dynobj == NULL)
5721 htab->root.dynobj = abfd;
067653c5 5722
37c644f2
AO
5723 /* When creating a shared object, we must copy these
5724 reloc types into the output file. We create a reloc
5725 section in dynobj and make room for this reloc. */
5726 if (sreloc == NULL)
5727 {
83bac4b0
NC
5728 sreloc = _bfd_elf_make_dynamic_reloc_section
5729 (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE);
37c644f2 5730
37c644f2 5731 if (sreloc == NULL)
83bac4b0 5732 return FALSE;
37c644f2
AO
5733 }
5734
067653c5
AM
5735 /* If this is a global symbol, we count the number of
5736 relocations we need for this symbol. */
5737 if (h != NULL)
190eb1dd 5738 head = &h->dyn_relocs;
067653c5 5739 else
37c644f2 5740 {
87d72d41 5741 /* Track dynamic relocs needed for local syms too. */
067653c5 5742 asection *s;
6edfbbad 5743 void *vpp;
87d72d41 5744 Elf_Internal_Sym *isym;
37c644f2 5745
87d72d41
AM
5746 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
5747 abfd, r_symndx);
5748 if (isym == NULL)
b34976b6 5749 return FALSE;
37c644f2 5750
87d72d41
AM
5751 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
5752 if (s == NULL)
5753 s = sec;
5754
6edfbbad 5755 vpp = &elf_section_data (s)->local_dynrel;
3bf083ed 5756 head = (struct elf_dyn_relocs **) vpp;
067653c5 5757 }
37c644f2 5758
067653c5
AM
5759 p = *head;
5760 if (p == NULL || p->sec != sec)
5761 {
986f0783 5762 size_t amt = sizeof (*p);
2293c499 5763 p = bfd_alloc (htab->root.dynobj, amt);
37c644f2 5764 if (p == NULL)
b34976b6 5765 return FALSE;
067653c5
AM
5766 p->next = *head;
5767 *head = p;
5768 p->sec = sec;
5769 p->count = 0;
5770 p->pc_count = 0;
37c644f2 5771 }
067653c5
AM
5772
5773 p->count += 1;
211dc24b 5774 if (r_type == R_SH_REL32)
067653c5 5775 p->pc_count += 1;
37c644f2
AO
5776 }
5777
8e45593f
NC
5778 /* Allocate the fixup regardless of whether we need a relocation.
5779 If we end up generating the relocation, we'll unallocate the
5780 fixup. */
0e1862bb 5781 if (htab->fdpic_p && !bfd_link_pic (info)
8e45593f
NC
5782 && r_type == R_SH_DIR32
5783 && (sec->flags & SEC_ALLOC) != 0)
5784 htab->srofixup->size += 4;
37c644f2 5785 break;
3376eaf5
KK
5786
5787 case R_SH_TLS_LE_32:
3cbc1e5e 5788 if (bfd_link_dll (info))
3376eaf5 5789 {
4eca0228 5790 _bfd_error_handler
871b3ab2 5791 (_("%pB: TLS local exec code cannot be linked into shared objects"),
d003868e 5792 abfd);
b34976b6 5793 return FALSE;
3376eaf5
KK
5794 }
5795
267fb3c1 5796 break;
3376eaf5 5797
3376eaf5 5798 case R_SH_TLS_LDO_32:
267fb3c1 5799 /* Nothing to do. */
3376eaf5
KK
5800 break;
5801
5802 default:
5803 break;
435b1e90 5804 }
252b5132 5805 }
435b1e90 5806
b34976b6 5807 return TRUE;
252b5132
RH
5808}
5809
fbca6ad9 5810#ifndef sh_elf_set_mach_from_flags
f6f9408f
JR
5811static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
5812
b34976b6 5813static bfd_boolean
09fd220b 5814sh_elf_set_mach_from_flags (bfd *abfd)
d4845d57 5815{
f6f9408f
JR
5816 flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
5817
f461bbd8 5818 if (flags >= ARRAY_SIZE (sh_ef_bfd_table))
f6f9408f
JR
5819 return FALSE;
5820
5821 if (sh_ef_bfd_table[flags] == 0)
5822 return FALSE;
68ffbac6 5823
f6f9408f 5824 bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
d4845d57 5825
b34976b6 5826 return TRUE;
d4845d57 5827}
f6f9408f
JR
5828
5829
5830/* Reverse table lookup for sh_ef_bfd_table[].
5831 Given a bfd MACH value from archures.c
5832 return the equivalent ELF flags from the table.
5833 Return -1 if no match is found. */
5834
5835int
5836sh_elf_get_flags_from_mach (unsigned long mach)
5837{
4195f552 5838 int i = ARRAY_SIZE (sh_ef_bfd_table) - 1;
68ffbac6 5839
f6f9408f
JR
5840 for (; i>0; i--)
5841 if (sh_ef_bfd_table[i] == mach)
5842 return i;
68ffbac6 5843
f6f9408f
JR
5844 /* shouldn't get here */
5845 BFD_FAIL();
5846
5847 return -1;
5848}
fbca6ad9 5849#endif /* not sh_elf_set_mach_from_flags */
d4845d57 5850
fbca6ad9 5851#ifndef sh_elf_copy_private_data
d4845d57 5852/* Copy backend specific data from one object module to another */
435b1e90 5853
b34976b6 5854static bfd_boolean
09fd220b 5855sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
d4845d57 5856{
0ffa91dd
NC
5857 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
5858 return TRUE;
5859
e2349352
L
5860 if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd))
5861 return FALSE;
5862
5863 return sh_elf_set_mach_from_flags (obfd);
d4845d57 5864}
fbca6ad9 5865#endif /* not sh_elf_copy_private_data */
d4845d57 5866
fbca6ad9 5867#ifndef sh_elf_merge_private_data
d4845d57 5868
f6f9408f
JR
5869/* This function returns the ELF architecture number that
5870 corresponds to the given arch_sh* flags. */
85fbca6a 5871
f6f9408f
JR
5872int
5873sh_find_elf_flags (unsigned int arch_set)
d4845d57 5874{
85fbca6a 5875 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
f6f9408f 5876 unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
d4845d57 5877
f6f9408f
JR
5878 return sh_elf_get_flags_from_mach (bfd_mach);
5879}
f6f9408f 5880
1047201f
AM
5881/* Merge the architecture type of two BFD files, such that the
5882 resultant architecture supports all the features required
5883 by the two input BFDs.
5884 If the input BFDs are multually incompatible - i.e. one uses
5885 DSP while the other uses FPU - or there is no known architecture
5886 that fits the requirements then an error is emitted. */
5887
5888static bfd_boolean
50e03d47 5889sh_merge_bfd_arch (bfd *ibfd, struct bfd_link_info *info)
1047201f 5890{
50e03d47 5891 bfd *obfd = info->output_bfd;
1047201f
AM
5892 unsigned int old_arch, new_arch, merged_arch;
5893
50e03d47 5894 if (! _bfd_generic_verify_endian_match (ibfd, info))
1047201f
AM
5895 return FALSE;
5896
5897 old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd));
5898 new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd));
5899
5900 merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch);
5901
5902 if (!SH_VALID_CO_ARCH_SET (merged_arch))
5903 {
5904 _bfd_error_handler
695344c0 5905 /* xgettext:c-format */
871b3ab2 5906 (_("%pB: uses %s instructions while previous modules "
695344c0 5907 "use %s instructions"),
1047201f
AM
5908 ibfd,
5909 SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point",
5910 SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp");
5911 bfd_set_error (bfd_error_bad_value);
5912 return FALSE;
5913 }
5914 else if (!SH_VALID_ARCH_SET (merged_arch))
5915 {
5916 _bfd_error_handler
695344c0
NC
5917 /* xgettext:c-format */
5918 (_("internal error: merge of architecture '%s' with "
5919 "architecture '%s' produced unknown architecture"),
1047201f
AM
5920 bfd_printable_name (obfd),
5921 bfd_printable_name (ibfd));
5922 bfd_set_error (bfd_error_bad_value);
5923 return FALSE;
5924 }
5925
5926 bfd_default_set_arch_mach (obfd, bfd_arch_sh,
5927 sh_get_bfd_mach_from_arch_set (merged_arch));
5928
5929 return TRUE;
5930}
5931
f6f9408f
JR
5932/* This routine initialises the elf flags when required and
5933 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
d4845d57 5934
f6f9408f 5935static bfd_boolean
50e03d47 5936sh_elf_merge_private_data (bfd *ibfd, struct bfd_link_info *info)
f6f9408f 5937{
50e03d47 5938 bfd *obfd = info->output_bfd;
85fbca6a 5939
6b728d32
AM
5940 /* FIXME: What should be checked when linking shared libraries? */
5941 if ((ibfd->flags & DYNAMIC) != 0)
5942 return TRUE;
5943
0ffa91dd 5944 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
b34976b6 5945 return TRUE;
d4845d57
JR
5946
5947 if (! elf_flags_init (obfd))
5948 {
a39b79b9 5949 /* This happens when ld starts out with a 'blank' output file. */
b34976b6 5950 elf_flags_init (obfd) = TRUE;
8e45593f 5951 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
f6f9408f 5952 sh_elf_set_mach_from_flags (obfd);
8e45593f 5953 if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC)
fbedb42d 5954 elf_elfheader (obfd)->e_flags &= ~EF_SH_PIC;
d4845d57 5955 }
d4845d57 5956
50e03d47 5957 if (! sh_merge_bfd_arch (ibfd, info))
1d70c7fb 5958 {
871b3ab2 5959 _bfd_error_handler (_("%pB: uses instructions which are incompatible "
695344c0 5960 "with instructions used in previous modules"),
d003868e 5961 ibfd);
1d70c7fb
AO
5962 bfd_set_error (bfd_error_bad_value);
5963 return FALSE;
5964 }
f6f9408f 5965
8e45593f
NC
5966 elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK;
5967 elf_elfheader (obfd)->e_flags |=
f6f9408f 5968 sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
8e45593f
NC
5969
5970 if (fdpic_object_p (ibfd) != fdpic_object_p (obfd))
5971 {
871b3ab2 5972 _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"),
8e45593f
NC
5973 ibfd);
5974 bfd_set_error (bfd_error_bad_value);
5975 return FALSE;
5976 }
5977
f6f9408f 5978 return TRUE;
d4845d57 5979}
fbca6ad9 5980#endif /* not sh_elf_merge_private_data */
d4845d57 5981
3376eaf5
KK
5982/* Override the generic function because we need to store sh_elf_obj_tdata
5983 as the specific tdata. We set also the machine architecture from flags
5984 here. */
5985
b34976b6 5986static bfd_boolean
09fd220b 5987sh_elf_object_p (bfd *abfd)
3376eaf5 5988{
8e45593f
NC
5989 if (! sh_elf_set_mach_from_flags (abfd))
5990 return FALSE;
5991
5992 return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0)
5993 == fdpic_object_p (abfd));
3376eaf5
KK
5994}
5995
37c644f2
AO
5996/* Finish up dynamic symbol handling. We set the contents of various
5997 dynamic sections here. */
5998
b34976b6 5999static bfd_boolean
09fd220b
KK
6000sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
6001 struct elf_link_hash_entry *h,
6002 Elf_Internal_Sym *sym)
37c644f2 6003{
067653c5 6004 struct elf_sh_link_hash_table *htab;
37c644f2 6005
067653c5 6006 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
6007 if (htab == NULL)
6008 return FALSE;
37c644f2
AO
6009
6010 if (h->plt.offset != (bfd_vma) -1)
6011 {
6012 asection *splt;
8e45593f
NC
6013 asection *sgotplt;
6014 asection *srelplt;
37c644f2
AO
6015
6016 bfd_vma plt_index;
6017 bfd_vma got_offset;
6018 Elf_Internal_Rela rel;
947216bf 6019 bfd_byte *loc;
8e45593f 6020 const struct elf_sh_plt_info *plt_info;
37c644f2
AO
6021
6022 /* This symbol has an entry in the procedure linkage table. Set
6023 it up. */
6024
6025 BFD_ASSERT (h->dynindx != -1);
6026
ce558b89
AM
6027 splt = htab->root.splt;
6028 sgotplt = htab->root.sgotplt;
6029 srelplt = htab->root.srelplt;
8e45593f 6030 BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL);
37c644f2
AO
6031
6032 /* Get the index in the procedure linkage table which
6033 corresponds to this symbol. This is the index of this symbol
6034 in all the symbols for which we are making plt entries. The
6035 first entry in the procedure linkage table is reserved. */
55e6e397 6036 plt_index = get_plt_index (htab->plt_info, h->plt.offset);
37c644f2 6037
8e45593f
NC
6038 plt_info = htab->plt_info;
6039 if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT)
6040 plt_info = plt_info->short_plt;
6041
37c644f2 6042 /* Get the offset into the .got table of the entry that
8e45593f
NC
6043 corresponds to this function. */
6044 if (htab->fdpic_p)
6045 /* The offset must be relative to the GOT symbol, twelve bytes
6046 before the end of .got.plt. Each descriptor is eight
6047 bytes. */
6048 got_offset = plt_index * 8 + 12 - sgotplt->size;
6049 else
6050 /* Each .got entry is 4 bytes. The first three are
6051 reserved. */
6052 got_offset = (plt_index + 3) * 4;
37c644f2 6053
fbca6ad9 6054#ifdef GOT_BIAS
0e1862bb 6055 if (bfd_link_pic (info))
c8614e8e 6056 got_offset -= GOT_BIAS;
fbca6ad9
AO
6057#endif
6058
37c644f2 6059 /* Fill in the entry in the procedure linkage table. */
55e6e397 6060 memcpy (splt->contents + h->plt.offset,
8e45593f
NC
6061 plt_info->symbol_entry,
6062 plt_info->symbol_entry_size);
55e6e397 6063
0e1862bb 6064 if (bfd_link_pic (info) || htab->fdpic_p)
8e45593f
NC
6065 {
6066 if (plt_info->symbol_fields.got20)
6067 {
6068 bfd_reloc_status_type r;
6069 r = install_movi20_field (output_bfd, got_offset,
6070 splt->owner, splt, splt->contents,
6071 h->plt.offset
6072 + plt_info->symbol_fields.got_entry);
6073 BFD_ASSERT (r == bfd_reloc_ok);
6074 }
6075 else
6076 install_plt_field (output_bfd, FALSE, got_offset,
6077 (splt->contents
6078 + h->plt.offset
6079 + plt_info->symbol_fields.got_entry));
6080 }
55e6e397 6081 else
37c644f2 6082 {
8e45593f
NC
6083 BFD_ASSERT (!plt_info->symbol_fields.got20);
6084
55e6e397 6085 install_plt_field (output_bfd, FALSE,
8e45593f
NC
6086 (sgotplt->output_section->vma
6087 + sgotplt->output_offset
fbca6ad9 6088 + got_offset),
55e6e397
RS
6089 (splt->contents
6090 + h->plt.offset
8e45593f 6091 + plt_info->symbol_fields.got_entry));
55e6e397 6092 if (htab->vxworks_p)
37c644f2 6093 {
55e6e397
RS
6094 unsigned int reachable_plts, plts_per_4k;
6095 int distance;
6096
6097 /* Divide the PLT into groups. The first group contains
6098 REACHABLE_PLTS entries and the other groups contain
6099 PLTS_PER_4K entries. Entries in the first group can
6100 branch directly to .plt; those in later groups branch
6101 to the last element of the previous group. */
6102 /* ??? It would be better to create multiple copies of
6103 the common resolver stub. */
6104 reachable_plts = ((4096
8e45593f
NC
6105 - plt_info->plt0_entry_size
6106 - (plt_info->symbol_fields.plt + 4))
6107 / plt_info->symbol_entry_size) + 1;
6108 plts_per_4k = (4096 / plt_info->symbol_entry_size);
55e6e397
RS
6109 if (plt_index < reachable_plts)
6110 distance = -(h->plt.offset
8e45593f 6111 + plt_info->symbol_fields.plt);
55e6e397
RS
6112 else
6113 distance = -(((plt_index - reachable_plts) % plts_per_4k + 1)
8e45593f 6114 * plt_info->symbol_entry_size);
55e6e397
RS
6115
6116 /* Install the 'bra' with this offset. */
6117 bfd_put_16 (output_bfd,
6118 0xa000 | (0x0fff & ((distance - 4) / 2)),
6119 (splt->contents
6120 + h->plt.offset
8e45593f 6121 + plt_info->symbol_fields.plt));
37c644f2 6122 }
55e6e397
RS
6123 else
6124 install_plt_field (output_bfd, TRUE,
6125 splt->output_section->vma + splt->output_offset,
6126 (splt->contents
6127 + h->plt.offset
8e45593f 6128 + plt_info->symbol_fields.plt));
37c644f2
AO
6129 }
6130
8e45593f 6131 /* Make got_offset relative to the start of .got.plt. */
fbca6ad9 6132#ifdef GOT_BIAS
0e1862bb 6133 if (bfd_link_pic (info))
c8614e8e 6134 got_offset += GOT_BIAS;
fbca6ad9 6135#endif
8e45593f
NC
6136 if (htab->fdpic_p)
6137 got_offset = plt_index * 8;
fbca6ad9 6138
8e45593f
NC
6139 if (plt_info->symbol_fields.reloc_offset != MINUS_ONE)
6140 install_plt_field (output_bfd, FALSE,
6141 plt_index * sizeof (Elf32_External_Rela),
6142 (splt->contents
6143 + h->plt.offset
6144 + plt_info->symbol_fields.reloc_offset));
37c644f2
AO
6145
6146 /* Fill in the entry in the global offset table. */
6147 bfd_put_32 (output_bfd,
6148 (splt->output_section->vma
6149 + splt->output_offset
6150 + h->plt.offset
8e45593f
NC
6151 + plt_info->symbol_resolve_offset),
6152 sgotplt->contents + got_offset);
6153 if (htab->fdpic_p)
6154 bfd_put_32 (output_bfd,
ce558b89 6155 sh_elf_osec_to_segment (output_bfd, splt->output_section),
8e45593f 6156 sgotplt->contents + got_offset + 4);
37c644f2
AO
6157
6158 /* Fill in the entry in the .rela.plt section. */
8e45593f
NC
6159 rel.r_offset = (sgotplt->output_section->vma
6160 + sgotplt->output_offset
37c644f2 6161 + got_offset);
8e45593f
NC
6162 if (htab->fdpic_p)
6163 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE);
6164 else
6165 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
37c644f2 6166 rel.r_addend = 0;
fbca6ad9
AO
6167#ifdef GOT_BIAS
6168 rel.r_addend = GOT_BIAS;
6169#endif
8e45593f 6170 loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
947216bf 6171 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2 6172
0e1862bb 6173 if (htab->vxworks_p && !bfd_link_pic (info))
55e6e397
RS
6174 {
6175 /* Create the .rela.plt.unloaded relocations for this PLT entry.
6176 Begin by pointing LOC to the first such relocation. */
6177 loc = (htab->srelplt2->contents
6178 + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela));
6179
6180 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
6181 for the PLT entry's pointer to the .got.plt entry. */
ce558b89
AM
6182 rel.r_offset = (splt->output_section->vma
6183 + splt->output_offset
55e6e397 6184 + h->plt.offset
8e45593f 6185 + plt_info->symbol_fields.got_entry);
55e6e397
RS
6186 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6187 rel.r_addend = got_offset;
6188 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6189 loc += sizeof (Elf32_External_Rela);
6190
6191 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
6192 the .got.plt entry, which initially points to .plt. */
8e45593f
NC
6193 rel.r_offset = (sgotplt->output_section->vma
6194 + sgotplt->output_offset
55e6e397
RS
6195 + got_offset);
6196 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32);
6197 rel.r_addend = 0;
6198 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6199 }
6200
f5385ebf 6201 if (!h->def_regular)
37c644f2
AO
6202 {
6203 /* Mark the symbol as undefined, rather than as defined in
6204 the .plt section. Leave the value alone. */
6205 sym->st_shndx = SHN_UNDEF;
6206 }
6207 }
6208
3376eaf5 6209 if (h->got.offset != (bfd_vma) -1
8e45593f
NC
6210 && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD
6211 && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE
6212 && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC)
37c644f2
AO
6213 {
6214 asection *sgot;
8e45593f 6215 asection *srelgot;
37c644f2 6216 Elf_Internal_Rela rel;
947216bf 6217 bfd_byte *loc;
37c644f2
AO
6218
6219 /* This symbol has an entry in the global offset table. Set it
6220 up. */
6221
ce558b89
AM
6222 sgot = htab->root.sgot;
6223 srelgot = htab->root.srelgot;
8e45593f 6224 BFD_ASSERT (sgot != NULL && srelgot != NULL);
37c644f2
AO
6225
6226 rel.r_offset = (sgot->output_section->vma
6227 + sgot->output_offset
dc810e39 6228 + (h->got.offset &~ (bfd_vma) 1));
37c644f2 6229
067653c5
AM
6230 /* If this is a static link, or it is a -Bsymbolic link and the
6231 symbol is defined locally or was forced to be local because
6232 of a version file, we just want to emit a RELATIVE reloc.
37c644f2
AO
6233 The entry in the global offset table will already have been
6234 initialized in the relocate_section function. */
0e1862bb 6235 if (bfd_link_pic (info)
3d85aebe 6236 && SYMBOL_REFERENCES_LOCAL (info, h))
37c644f2 6237 {
8e45593f
NC
6238 if (htab->fdpic_p)
6239 {
6240 asection *sec = h->root.u.def.section;
6241 int dynindx
6242 = elf_section_data (sec->output_section)->dynindx;
6243
6244 rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
6245 rel.r_addend = (h->root.u.def.value
6246 + h->root.u.def.section->output_offset);
6247 }
6248 else
6249 {
6250 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
6251 rel.r_addend = (h->root.u.def.value
6252 + h->root.u.def.section->output_section->vma
6253 + h->root.u.def.section->output_offset);
6254 }
37c644f2
AO
6255 }
6256 else
6257 {
6258 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
6259 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
6260 rel.r_addend = 0;
6261 }
6262
8e45593f
NC
6263 loc = srelgot->contents;
6264 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
947216bf 6265 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2
AO
6266 }
6267
f5385ebf 6268 if (h->needs_copy)
37c644f2
AO
6269 {
6270 asection *s;
6271 Elf_Internal_Rela rel;
947216bf 6272 bfd_byte *loc;
37c644f2
AO
6273
6274 /* This symbol needs a copy reloc. Set it up. */
6275
6276 BFD_ASSERT (h->dynindx != -1
6277 && (h->root.type == bfd_link_hash_defined
6278 || h->root.type == bfd_link_hash_defweak));
6279
3d4d4302 6280 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
37c644f2
AO
6281 BFD_ASSERT (s != NULL);
6282
6283 rel.r_offset = (h->root.u.def.value
6284 + h->root.u.def.section->output_section->vma
6285 + h->root.u.def.section->output_offset);
6286 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
6287 rel.r_addend = 0;
947216bf
AM
6288 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
6289 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
37c644f2
AO
6290 }
6291
55e6e397
RS
6292 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
6293 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
6294 ".got" section. */
9637f6ef 6295 if (h == htab->root.hdynamic
55e6e397 6296 || (!htab->vxworks_p && h == htab->root.hgot))
37c644f2
AO
6297 sym->st_shndx = SHN_ABS;
6298
b34976b6 6299 return TRUE;
37c644f2
AO
6300}
6301
6302/* Finish up the dynamic sections. */
6303
b34976b6 6304static bfd_boolean
09fd220b 6305sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
37c644f2 6306{
067653c5 6307 struct elf_sh_link_hash_table *htab;
8e45593f 6308 asection *sgotplt;
37c644f2
AO
6309 asection *sdyn;
6310
067653c5 6311 htab = sh_elf_hash_table (info);
4dfe6ac6
NC
6312 if (htab == NULL)
6313 return FALSE;
6314
ce558b89 6315 sgotplt = htab->root.sgotplt;
3d4d4302 6316 sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic");
37c644f2 6317
067653c5 6318 if (htab->root.dynamic_sections_created)
37c644f2
AO
6319 {
6320 asection *splt;
6321 Elf32_External_Dyn *dyncon, *dynconend;
6322
8e45593f 6323 BFD_ASSERT (sgotplt != NULL && sdyn != NULL);
37c644f2
AO
6324
6325 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 6326 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
37c644f2
AO
6327 for (; dyncon < dynconend; dyncon++)
6328 {
6329 Elf_Internal_Dyn dyn;
37c644f2
AO
6330 asection *s;
6331
2293c499 6332 bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
37c644f2
AO
6333
6334 switch (dyn.d_tag)
6335 {
6336 default:
7a2b07ff
NS
6337 if (htab->vxworks_p
6338 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
6339 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
37c644f2
AO
6340 break;
6341
6342 case DT_PLTGOT:
8e45593f
NC
6343 BFD_ASSERT (htab->root.hgot != NULL);
6344 s = htab->root.hgot->root.u.def.section;
6345 dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value
6346 + s->output_section->vma + s->output_offset;
6347 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6348 break;
37c644f2
AO
6349
6350 case DT_JMPREL:
ce558b89 6351 s = htab->root.srelplt->output_section;
37c644f2
AO
6352 BFD_ASSERT (s != NULL);
6353 dyn.d_un.d_ptr = s->vma;
6354 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6355 break;
6356
6357 case DT_PLTRELSZ:
ce558b89 6358 s = htab->root.srelplt->output_section;
37c644f2 6359 BFD_ASSERT (s != NULL);
eea6121a 6360 dyn.d_un.d_val = s->size;
37c644f2
AO
6361 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
6362 break;
37c644f2
AO
6363 }
6364 }
6365
6366 /* Fill in the first entry in the procedure linkage table. */
ce558b89 6367 splt = htab->root.splt;
55e6e397 6368 if (splt && splt->size > 0 && htab->plt_info->plt0_entry)
37c644f2 6369 {
55e6e397
RS
6370 unsigned int i;
6371
6372 memcpy (splt->contents,
6373 htab->plt_info->plt0_entry,
6374 htab->plt_info->plt0_entry_size);
6375 for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++)
6376 if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE)
6377 install_plt_field (output_bfd, FALSE,
8e45593f
NC
6378 (sgotplt->output_section->vma
6379 + sgotplt->output_offset
55e6e397
RS
6380 + (i * 4)),
6381 (splt->contents
6382 + htab->plt_info->plt0_got_fields[i]));
6383
6384 if (htab->vxworks_p)
37c644f2 6385 {
55e6e397
RS
6386 /* Finalize the .rela.plt.unloaded contents. */
6387 Elf_Internal_Rela rel;
6388 bfd_byte *loc;
6389
6390 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
6391 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
6392 loc = htab->srelplt2->contents;
6393 rel.r_offset = (splt->output_section->vma
6394 + splt->output_offset
6395 + htab->plt_info->plt0_got_fields[2]);
6396 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6397 rel.r_addend = 8;
6398 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6399 loc += sizeof (Elf32_External_Rela);
6400
6401 /* Fix up the remaining .rela.plt.unloaded relocations.
6402 They may have the wrong symbol index for _G_O_T_ or
6403 _P_L_T_ depending on the order in which symbols were
6404 output. */
6405 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
37c644f2 6406 {
55e6e397
RS
6407 /* The PLT entry's pointer to the .got.plt slot. */
6408 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6409 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx,
6410 R_SH_DIR32);
6411 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6412 loc += sizeof (Elf32_External_Rela);
6413
6414 /* The .got.plt slot's pointer to .plt. */
6415 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
6416 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx,
6417 R_SH_DIR32);
6418 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6419 loc += sizeof (Elf32_External_Rela);
37c644f2 6420 }
37c644f2
AO
6421 }
6422
6423 /* UnixWare sets the entsize of .plt to 4, although that doesn't
6424 really seem like the right value. */
6425 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
6426 }
6427 }
6428
6429 /* Fill in the first three entries in the global offset table. */
8e45593f 6430 if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p)
37c644f2
AO
6431 {
6432 if (sdyn == NULL)
8e45593f 6433 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents);
37c644f2
AO
6434 else
6435 bfd_put_32 (output_bfd,
6436 sdyn->output_section->vma + sdyn->output_offset,
8e45593f
NC
6437 sgotplt->contents);
6438 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4);
6439 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8);
6440 }
37c644f2 6441
8e45593f
NC
6442 if (sgotplt && sgotplt->size > 0)
6443 elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4;
68ffbac6 6444
8e45593f
NC
6445 /* At the very end of the .rofixup section is a pointer to the GOT. */
6446 if (htab->fdpic_p && htab->srofixup != NULL)
6447 {
6448 struct elf_link_hash_entry *hgot = htab->root.hgot;
6449 bfd_vma got_value = hgot->root.u.def.value
6450 + hgot->root.u.def.section->output_section->vma
6451 + hgot->root.u.def.section->output_offset;
6452
6453 sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value);
6454
6455 /* Make sure we allocated and generated the same number of fixups. */
6456 BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size);
067653c5 6457 }
37c644f2 6458
8e45593f
NC
6459 if (htab->srelfuncdesc)
6460 BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela)
6461 == htab->srelfuncdesc->size);
6462
ce558b89
AM
6463 if (htab->root.srelgot)
6464 BFD_ASSERT (htab->root.srelgot->reloc_count * sizeof (Elf32_External_Rela)
6465 == htab->root.srelgot->size);
8e45593f 6466
b34976b6 6467 return TRUE;
37c644f2
AO
6468}
6469
99e4ae17 6470static enum elf_reloc_type_class
7e612e98
AM
6471sh_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
6472 const asection *rel_sec ATTRIBUTE_UNUSED,
6473 const Elf_Internal_Rela *rela)
99e4ae17 6474{
f51e552e 6475 switch ((int) ELF32_R_TYPE (rela->r_info))
99e4ae17
AJ
6476 {
6477 case R_SH_RELATIVE:
6478 return reloc_class_relative;
6479 case R_SH_JMP_SLOT:
6480 return reloc_class_plt;
6481 case R_SH_COPY:
6482 return reloc_class_copy;
6483 default:
6484 return reloc_class_normal;
6485 }
6486}
6487
85fbca6a 6488#if !defined SH_TARGET_ALREADY_DEFINED
571fe01f 6489/* Support for Linux core dump NOTE sections. */
85fbca6a 6490
b34976b6 6491static bfd_boolean
09fd220b 6492elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2bc3c89a
AM
6493{
6494 int offset;
eea6121a 6495 unsigned int size;
2bc3c89a
AM
6496
6497 switch (note->descsz)
6498 {
6499 default:
b34976b6 6500 return FALSE;
2bc3c89a
AM
6501
6502 case 168: /* Linux/SH */
6503 /* pr_cursig */
228e534f 6504 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2bc3c89a
AM
6505
6506 /* pr_pid */
228e534f 6507 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2bc3c89a
AM
6508
6509 /* pr_reg */
6510 offset = 72;
eea6121a 6511 size = 92;
2bc3c89a
AM
6512
6513 break;
6514 }
6515
6516 /* Make a ".reg/999" section. */
6517 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 6518 size, note->descpos + offset);
2bc3c89a
AM
6519}
6520
b34976b6 6521static bfd_boolean
09fd220b 6522elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2bc3c89a
AM
6523{
6524 switch (note->descsz)
6525 {
6526 default:
b34976b6 6527 return FALSE;
2bc3c89a
AM
6528
6529 case 124: /* Linux/SH elf_prpsinfo */
228e534f 6530 elf_tdata (abfd)->core->program
2bc3c89a 6531 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
228e534f 6532 elf_tdata (abfd)->core->command
2bc3c89a
AM
6533 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6534 }
6535
6536 /* Note that for some reason, a spurious space is tacked
6537 onto the end of the args in some (at least one anyway)
6538 implementations, so strip it off if it exists. */
6539
6540 {
228e534f 6541 char *command = elf_tdata (abfd)->core->command;
2bc3c89a
AM
6542 int n = strlen (command);
6543
6544 if (0 < n && command[n - 1] == ' ')
6545 command[n - 1] = '\0';
6546 }
6547
b34976b6 6548 return TRUE;
2bc3c89a 6549}
85fbca6a 6550#endif /* not SH_TARGET_ALREADY_DEFINED */
2bc3c89a 6551
68ffbac6 6552
1f1799d5
KK
6553/* Return address for Ith PLT stub in section PLT, for relocation REL
6554 or (bfd_vma) -1 if it should not be included. */
6555
6556static bfd_vma
6557sh_elf_plt_sym_val (bfd_vma i, const asection *plt,
6558 const arelent *rel ATTRIBUTE_UNUSED)
6559{
55e6e397
RS
6560 const struct elf_sh_plt_info *plt_info;
6561
6562 plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0);
6563 return plt->vma + get_plt_offset (plt_info, i);
1f1799d5
KK
6564}
6565
8e45593f
NC
6566/* Decide whether to attempt to turn absptr or lsda encodings in
6567 shared libraries into pcrel within the given input section. */
6568
6569static bfd_boolean
6570sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED,
6571 struct bfd_link_info *info,
6572 asection *eh_frame_section ATTRIBUTE_UNUSED)
6573{
6574 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6575
6576 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
6577 if (htab->fdpic_p)
6578 return FALSE;
6579
6580 return TRUE;
6581}
6582
6583/* Adjust the contents of an eh_frame_hdr section before they're output. */
6584
6585static bfd_byte
6586sh_elf_encode_eh_address (bfd *abfd,
6587 struct bfd_link_info *info,
6588 asection *osec, bfd_vma offset,
6589 asection *loc_sec, bfd_vma loc_offset,
6590 bfd_vma *encoded)
6591{
6592 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
6593 struct elf_link_hash_entry *h;
6594
6595 if (!htab->fdpic_p)
6596 return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec,
6597 loc_offset, encoded);
6598
6599 h = htab->root.hgot;
6600 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
6601
6602 if (! h || (sh_elf_osec_to_segment (abfd, osec)
6603 == sh_elf_osec_to_segment (abfd, loc_sec->output_section)))
6604 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
6605 loc_sec, loc_offset, encoded);
6606
6607 BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec)
6608 == (sh_elf_osec_to_segment
6609 (abfd, h->root.u.def.section->output_section)));
6610
6611 *encoded = osec->vma + offset
6612 - (h->root.u.def.value
6613 + h->root.u.def.section->output_section->vma
6614 + h->root.u.def.section->output_offset);
6615
6616 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
6617}
6618
85fbca6a 6619#if !defined SH_TARGET_ALREADY_DEFINED
6d00b590 6620#define TARGET_BIG_SYM sh_elf32_vec
252b5132 6621#define TARGET_BIG_NAME "elf32-sh"
6d00b590 6622#define TARGET_LITTLE_SYM sh_elf32_le_vec
252b5132 6623#define TARGET_LITTLE_NAME "elf32-shl"
85fbca6a
NC
6624#endif
6625
252b5132 6626#define ELF_ARCH bfd_arch_sh
ae95ffa6 6627#define ELF_TARGET_ID SH_ELF_DATA
252b5132 6628#define ELF_MACHINE_CODE EM_SH
d0facd1b
NC
6629#ifdef __QNXTARGET__
6630#define ELF_MAXPAGESIZE 0x1000
6631#else
6632#define ELF_MAXPAGESIZE 0x80
6633#endif
252b5132
RH
6634
6635#define elf_symbol_leading_char '_'
6636
6637#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
157090f7
AM
6638#define bfd_elf32_bfd_reloc_name_lookup \
6639 sh_elf_reloc_name_lookup
252b5132
RH
6640#define elf_info_to_howto sh_elf_info_to_howto
6641#define bfd_elf32_bfd_relax_section sh_elf_relax_section
6642#define elf_backend_relocate_section sh_elf_relocate_section
6643#define bfd_elf32_bfd_get_relocated_section_contents \
6644 sh_elf_get_relocated_section_contents
3376eaf5
KK
6645#define bfd_elf32_mkobject sh_elf_mkobject
6646#define elf_backend_object_p sh_elf_object_p
d4845d57
JR
6647#define bfd_elf32_bfd_copy_private_bfd_data \
6648 sh_elf_copy_private_data
875f7f69 6649#define bfd_elf32_bfd_merge_private_bfd_data \
d4845d57 6650 sh_elf_merge_private_data
252b5132 6651
067653c5 6652#define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
067653c5
AM
6653#define elf_backend_check_relocs sh_elf_check_relocs
6654#define elf_backend_copy_indirect_symbol \
6655 sh_elf_copy_indirect_symbol
37c644f2
AO
6656#define elf_backend_create_dynamic_sections \
6657 sh_elf_create_dynamic_sections
6658#define bfd_elf32_bfd_link_hash_table_create \
6659 sh_elf_link_hash_table_create
6660#define elf_backend_adjust_dynamic_symbol \
6661 sh_elf_adjust_dynamic_symbol
55e6e397
RS
6662#define elf_backend_always_size_sections \
6663 sh_elf_always_size_sections
37c644f2
AO
6664#define elf_backend_size_dynamic_sections \
6665 sh_elf_size_dynamic_sections
8e45593f 6666#define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
37c644f2
AO
6667#define elf_backend_finish_dynamic_symbol \
6668 sh_elf_finish_dynamic_symbol
6669#define elf_backend_finish_dynamic_sections \
6670 sh_elf_finish_dynamic_sections
99e4ae17 6671#define elf_backend_reloc_type_class sh_elf_reloc_type_class
1f1799d5 6672#define elf_backend_plt_sym_val sh_elf_plt_sym_val
8e45593f
NC
6673#define elf_backend_can_make_relative_eh_frame \
6674 sh_elf_use_relative_eh_frame
6675#define elf_backend_can_make_lsda_relative_eh_frame \
6676 sh_elf_use_relative_eh_frame
6677#define elf_backend_encode_eh_address \
6678 sh_elf_encode_eh_address
37c644f2 6679
04c3a755 6680#define elf_backend_stack_align 8
067653c5
AM
6681#define elf_backend_can_gc_sections 1
6682#define elf_backend_can_refcount 1
37c644f2
AO
6683#define elf_backend_want_got_plt 1
6684#define elf_backend_plt_readonly 1
6685#define elf_backend_want_plt_sym 0
6686#define elf_backend_got_header_size 12
64f52338 6687#define elf_backend_dtrel_excludes_plt 1
ed71e111 6688
a2f63b2e
MR
6689#define elf_backend_linux_prpsinfo32_ugid16 TRUE
6690
211dc24b 6691#if !defined SH_TARGET_ALREADY_DEFINED
2bc3c89a 6692
252b5132 6693#include "elf32-target.h"
ed71e111 6694
2bc3c89a
AM
6695/* NetBSD support. */
6696#undef TARGET_BIG_SYM
6d00b590 6697#define TARGET_BIG_SYM sh_elf32_nbsd_vec
2bc3c89a
AM
6698#undef TARGET_BIG_NAME
6699#define TARGET_BIG_NAME "elf32-sh-nbsd"
6700#undef TARGET_LITTLE_SYM
6d00b590 6701#define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec
2bc3c89a
AM
6702#undef TARGET_LITTLE_NAME
6703#define TARGET_LITTLE_NAME "elf32-shl-nbsd"
6704#undef ELF_MAXPAGESIZE
6705#define ELF_MAXPAGESIZE 0x10000
24718e3b 6706#undef ELF_COMMONPAGESIZE
2bc3c89a
AM
6707#undef elf_symbol_leading_char
6708#define elf_symbol_leading_char 0
571fe01f 6709#undef elf32_bed
2bc3c89a
AM
6710#define elf32_bed elf32_sh_nbsd_bed
6711
6712#include "elf32-target.h"
6713
2bc3c89a
AM
6714
6715/* Linux support. */
6716#undef TARGET_BIG_SYM
6d00b590 6717#define TARGET_BIG_SYM sh_elf32_linux_be_vec
2bc3c89a
AM
6718#undef TARGET_BIG_NAME
6719#define TARGET_BIG_NAME "elf32-shbig-linux"
6720#undef TARGET_LITTLE_SYM
6d00b590 6721#define TARGET_LITTLE_SYM sh_elf32_linux_vec
2bc3c89a
AM
6722#undef TARGET_LITTLE_NAME
6723#define TARGET_LITTLE_NAME "elf32-sh-linux"
24718e3b
L
6724#undef ELF_COMMONPAGESIZE
6725#define ELF_COMMONPAGESIZE 0x1000
2bc3c89a
AM
6726
6727#undef elf_backend_grok_prstatus
6728#define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
6729#undef elf_backend_grok_psinfo
6730#define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
571fe01f 6731#undef elf32_bed
2bc3c89a
AM
6732#define elf32_bed elf32_sh_lin_bed
6733
6734#include "elf32-target.h"
6735
8e45593f
NC
6736
6737/* FDPIC support. */
6738#undef TARGET_BIG_SYM
6d00b590 6739#define TARGET_BIG_SYM sh_elf32_fdpic_be_vec
8e45593f
NC
6740#undef TARGET_BIG_NAME
6741#define TARGET_BIG_NAME "elf32-shbig-fdpic"
6742#undef TARGET_LITTLE_SYM
6d00b590 6743#define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec
8e45593f
NC
6744#undef TARGET_LITTLE_NAME
6745#define TARGET_LITTLE_NAME "elf32-sh-fdpic"
8e45593f
NC
6746
6747#undef elf32_bed
6748#define elf32_bed elf32_sh_fd_bed
6749
6750#include "elf32-target.h"
6751
8e45593f 6752/* VxWorks support. */
55e6e397 6753#undef TARGET_BIG_SYM
6d00b590 6754#define TARGET_BIG_SYM sh_elf32_vxworks_vec
55e6e397
RS
6755#undef TARGET_BIG_NAME
6756#define TARGET_BIG_NAME "elf32-sh-vxworks"
6757#undef TARGET_LITTLE_SYM
6d00b590 6758#define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec
55e6e397
RS
6759#undef TARGET_LITTLE_NAME
6760#define TARGET_LITTLE_NAME "elf32-shl-vxworks"
6761#undef elf32_bed
6762#define elf32_bed elf32_sh_vxworks_bed
6763
6764#undef elf_backend_want_plt_sym
6765#define elf_backend_want_plt_sym 1
6766#undef elf_symbol_leading_char
6767#define elf_symbol_leading_char '_'
6768#define elf_backend_want_got_underscore 1
6769#undef elf_backend_grok_prstatus
6770#undef elf_backend_grok_psinfo
6771#undef elf_backend_add_symbol_hook
6772#define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
6773#undef elf_backend_link_output_symbol_hook
6774#define elf_backend_link_output_symbol_hook \
6775 elf_vxworks_link_output_symbol_hook
6776#undef elf_backend_emit_relocs
6777#define elf_backend_emit_relocs elf_vxworks_emit_relocs
6778#undef elf_backend_final_write_processing
6779#define elf_backend_final_write_processing \
6780 elf_vxworks_final_write_processing
6781#undef ELF_MAXPAGESIZE
6782#define ELF_MAXPAGESIZE 0x1000
6783#undef ELF_COMMONPAGESIZE
6784
6785#include "elf32-target.h"
6786
211dc24b 6787#endif /* not SH_TARGET_ALREADY_DEFINED */