1 /* Renesas / SuperH SH specific support for 32-bit ELF
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2006, 2007, 2008, 2009, 2010, 2011, 2012
4 Free Software Foundation, Inc.
5 Contributed by Ian Lance Taylor, Cygnus Support.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
29 #include "elf-vxworks.h"
32 #include "libiberty.h"
33 #include "../opcodes/sh-opc.h"
35 static bfd_reloc_status_type sh_elf_reloc
36 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
37 static bfd_reloc_status_type sh_elf_ignore_reloc
38 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
39 static bfd_boolean sh_elf_relax_delete_bytes
40 (bfd *, asection *, bfd_vma, int);
41 static bfd_boolean sh_elf_align_loads
42 (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *);
44 static bfd_boolean sh_elf_swap_insns
45 (bfd *, asection *, void *, bfd_byte *, bfd_vma);
47 static int sh_elf_optimized_tls_reloc
48 (struct bfd_link_info *, int, int);
49 static bfd_vma dtpoff_base
50 (struct bfd_link_info *);
52 (struct bfd_link_info *, bfd_vma);
54 /* The name of the dynamic interpreter. This is put in the .interp
57 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
59 /* FDPIC binaries have a default 128K stack. */
60 #define DEFAULT_STACK_SIZE 0x20000
62 #define MINUS_ONE ((bfd_vma) 0 - 1)
64 /* Decide whether a reference to a symbol can be resolved locally or
65 not. If the symbol is protected, we want the local address, but
66 its function descriptor must be assigned by the dynamic linker. */
67 #define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
68 (SYMBOL_REFERENCES_LOCAL (INFO, H) \
69 || ! elf_hash_table (INFO)->dynamic_sections_created)
71 #define SH_PARTIAL32 TRUE
72 #define SH_SRC_MASK32 0xffffffff
73 #define SH_ELF_RELOC sh_elf_reloc
74 static reloc_howto_type sh_elf_howto_table[] =
76 #include "elf32-sh-relocs.h"
79 #define SH_PARTIAL32 FALSE
80 #define SH_SRC_MASK32 0
81 #define SH_ELF_RELOC bfd_elf_generic_reloc
82 static reloc_howto_type sh_vxworks_howto_table[] =
84 #include "elf32-sh-relocs.h"
87 /* Return true if OUTPUT_BFD is a VxWorks object. */
90 vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED)
92 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
93 extern const bfd_target bfd_elf32_shlvxworks_vec;
94 extern const bfd_target bfd_elf32_shvxworks_vec;
96 return (abfd->xvec == &bfd_elf32_shlvxworks_vec
97 || abfd->xvec == &bfd_elf32_shvxworks_vec);
103 /* Return true if OUTPUT_BFD is an FDPIC object. */
106 fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED)
108 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
109 extern const bfd_target bfd_elf32_shfd_vec;
110 extern const bfd_target bfd_elf32_shbfd_vec;
112 return (abfd->xvec == &bfd_elf32_shfd_vec
113 || abfd->xvec == &bfd_elf32_shbfd_vec);
119 /* Return the howto table for ABFD. */
121 static reloc_howto_type *
122 get_howto_table (bfd *abfd)
124 if (vxworks_object_p (abfd))
125 return sh_vxworks_howto_table;
126 return sh_elf_howto_table;
129 static bfd_reloc_status_type
130 sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd,
131 asection *input_section, bfd_byte *contents,
132 bfd_vma addr, asection *symbol_section,
133 bfd_vma start, bfd_vma end)
135 static bfd_vma last_addr;
136 static asection *last_symbol_section;
137 bfd_byte *start_ptr, *ptr, *last_ptr;
142 /* Sanity check the address. */
143 if (addr > bfd_get_section_limit (input_bfd, input_section))
144 return bfd_reloc_outofrange;
146 /* We require the start and end relocations to be processed consecutively -
147 although we allow then to be processed forwards or backwards. */
151 last_symbol_section = symbol_section;
154 if (last_addr != addr)
158 if (! symbol_section || last_symbol_section != symbol_section || end < start)
159 return bfd_reloc_outofrange;
161 /* Get the symbol_section contents. */
162 if (symbol_section != input_section)
164 if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
165 contents = elf_section_data (symbol_section)->this_hdr.contents;
168 if (!bfd_malloc_and_get_section (input_bfd, symbol_section,
171 if (contents != NULL)
173 return bfd_reloc_outofrange;
177 #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
178 start_ptr = contents + start;
179 for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
181 for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
184 diff = (last_ptr - ptr) >> 1;
185 cum_diff += diff & 1;
188 /* Calculate the start / end values to load into rs / re minus four -
189 so that will cancel out the four we would otherwise have to add to
190 addr to get the value to subtract in order to get relative addressing. */
194 end = (ptr + cum_diff * 2) - contents;
198 bfd_vma start0 = start - 4;
200 while (start0 && IS_PPI (contents + start0))
202 start0 = start - 2 - ((start - start0) & 2);
203 start = start0 - cum_diff - 2;
208 && elf_section_data (symbol_section)->this_hdr.contents != contents)
211 insn = bfd_get_16 (input_bfd, contents + addr);
213 x = (insn & 0x200 ? end : start) - addr;
214 if (input_section != symbol_section)
215 x += ((symbol_section->output_section->vma + symbol_section->output_offset)
216 - (input_section->output_section->vma
217 + input_section->output_offset));
219 if (x < -128 || x > 127)
220 return bfd_reloc_overflow;
222 x = (insn & ~0xff) | (x & 0xff);
223 bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr);
228 /* This function is used for normal relocs. This used to be like the COFF
229 function, and is almost certainly incorrect for other ELF targets. */
231 static bfd_reloc_status_type
232 sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in,
233 void *data, asection *input_section, bfd *output_bfd,
234 char **error_message ATTRIBUTE_UNUSED)
238 enum elf_sh_reloc_type r_type;
239 bfd_vma addr = reloc_entry->address;
240 bfd_byte *hit_data = addr + (bfd_byte *) data;
242 r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
244 if (output_bfd != NULL)
246 /* Partial linking--do nothing. */
247 reloc_entry->address += input_section->output_offset;
251 /* Almost all relocs have to do with relaxing. If any work must be
252 done for them, it has been done in sh_relax_section. */
253 if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
256 if (symbol_in != NULL
257 && bfd_is_und_section (symbol_in->section))
258 return bfd_reloc_undefined;
260 if (bfd_is_com_section (symbol_in->section))
263 sym_value = (symbol_in->value +
264 symbol_in->section->output_section->vma +
265 symbol_in->section->output_offset);
270 insn = bfd_get_32 (abfd, hit_data);
271 insn += sym_value + reloc_entry->addend;
272 bfd_put_32 (abfd, (bfd_vma) insn, hit_data);
275 insn = bfd_get_16 (abfd, hit_data);
276 sym_value += reloc_entry->addend;
277 sym_value -= (input_section->output_section->vma
278 + input_section->output_offset
281 sym_value += (insn & 0xfff) << 1;
284 insn = (insn & 0xf000) | (sym_value & 0xfff);
285 bfd_put_16 (abfd, (bfd_vma) insn, hit_data);
286 if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
287 return bfd_reloc_overflow;
297 /* This function is used for relocs which are only used for relaxing,
298 which the linker should otherwise ignore. */
300 static bfd_reloc_status_type
301 sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
302 asymbol *symbol ATTRIBUTE_UNUSED,
303 void *data ATTRIBUTE_UNUSED, asection *input_section,
305 char **error_message ATTRIBUTE_UNUSED)
307 if (output_bfd != NULL)
308 reloc_entry->address += input_section->output_offset;
312 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
316 bfd_reloc_code_real_type bfd_reloc_val;
317 unsigned char elf_reloc_val;
320 /* An array mapping BFD reloc codes to SH ELF relocs. */
322 static const struct elf_reloc_map sh_reloc_map[] =
324 { BFD_RELOC_NONE, R_SH_NONE },
325 { BFD_RELOC_32, R_SH_DIR32 },
326 { BFD_RELOC_16, R_SH_DIR16 },
327 { BFD_RELOC_8, R_SH_DIR8 },
328 { BFD_RELOC_CTOR, R_SH_DIR32 },
329 { BFD_RELOC_32_PCREL, R_SH_REL32 },
330 { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
331 { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
332 { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
333 { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
334 { BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
335 { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
336 { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
337 { BFD_RELOC_SH_USES, R_SH_USES },
338 { BFD_RELOC_SH_COUNT, R_SH_COUNT },
339 { BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
340 { BFD_RELOC_SH_CODE, R_SH_CODE },
341 { BFD_RELOC_SH_DATA, R_SH_DATA },
342 { BFD_RELOC_SH_LABEL, R_SH_LABEL },
343 { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
344 { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
345 { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
346 { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
347 { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 },
348 { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 },
349 { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 },
350 { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 },
351 { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 },
352 { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 },
353 { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 },
354 { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 },
355 { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 },
356 { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 },
357 { BFD_RELOC_SH_COPY, R_SH_COPY },
358 { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT },
359 { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT },
360 { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE },
361 { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF },
362 { BFD_RELOC_SH_GOTPC, R_SH_GOTPC },
363 { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 },
364 { BFD_RELOC_SH_GOT20, R_SH_GOT20 },
365 { BFD_RELOC_SH_GOTOFF20, R_SH_GOTOFF20 },
366 { BFD_RELOC_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC },
367 { BFD_RELOC_SH_GOTFUNCDESC20, R_SH_GOTFUNCDESC20 },
368 { BFD_RELOC_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC },
369 { BFD_RELOC_SH_GOTOFFFUNCDESC20, R_SH_GOTOFFFUNCDESC20 },
370 { BFD_RELOC_SH_FUNCDESC, R_SH_FUNCDESC },
371 #ifdef INCLUDE_SHMEDIA
372 { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 },
373 { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 },
374 { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 },
375 { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 },
376 { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 },
377 { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 },
378 { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 },
379 { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 },
380 { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 },
381 { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 },
382 { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 },
383 { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 },
384 { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 },
385 { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 },
386 { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 },
387 { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 },
388 { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 },
389 { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 },
390 { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 },
391 { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 },
392 { BFD_RELOC_SH_COPY64, R_SH_COPY64 },
393 { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 },
394 { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 },
395 { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 },
396 { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 },
397 { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 },
398 { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 },
399 { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 },
400 { BFD_RELOC_SH_PT_16, R_SH_PT_16 },
401 { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE },
402 { BFD_RELOC_SH_IMMU5, R_SH_DIR5U },
403 { BFD_RELOC_SH_IMMS6, R_SH_DIR6S },
404 { BFD_RELOC_SH_IMMU6, R_SH_DIR6U },
405 { BFD_RELOC_SH_IMMS10, R_SH_DIR10S },
406 { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW },
407 { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL },
408 { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ },
409 { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 },
410 { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 },
411 { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 },
412 { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL },
413 { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 },
414 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL },
415 { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 },
416 { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL },
417 { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 },
418 { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL },
419 { BFD_RELOC_64, R_SH_64 },
420 { BFD_RELOC_64_PCREL, R_SH_64_PCREL },
421 #endif /* not INCLUDE_SHMEDIA */
424 /* Given a BFD reloc code, return the howto structure for the
425 corresponding SH ELF reloc. */
427 static reloc_howto_type *
428 sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
432 for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
434 if (sh_reloc_map[i].bfd_reloc_val == code)
435 return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val;
441 static reloc_howto_type *
442 sh_elf_reloc_name_lookup (bfd *abfd, const char *r_name)
446 if (vxworks_object_p (abfd))
449 i < (sizeof (sh_vxworks_howto_table)
450 / sizeof (sh_vxworks_howto_table[0]));
452 if (sh_vxworks_howto_table[i].name != NULL
453 && strcasecmp (sh_vxworks_howto_table[i].name, r_name) == 0)
454 return &sh_vxworks_howto_table[i];
459 i < (sizeof (sh_elf_howto_table)
460 / sizeof (sh_elf_howto_table[0]));
462 if (sh_elf_howto_table[i].name != NULL
463 && strcasecmp (sh_elf_howto_table[i].name, r_name) == 0)
464 return &sh_elf_howto_table[i];
470 /* Given an ELF reloc, fill in the howto field of a relent. */
473 sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
477 r = ELF32_R_TYPE (dst->r_info);
479 BFD_ASSERT (r < (unsigned int) R_SH_max);
480 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
481 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_2 || r > R_SH_LAST_INVALID_RELOC_2);
482 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_LAST_INVALID_RELOC_3);
483 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4);
484 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_5 || r > R_SH_LAST_INVALID_RELOC_5);
485 BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_6 || r > R_SH_LAST_INVALID_RELOC_6);
487 cache_ptr->howto = get_howto_table (abfd) + r;
490 /* This function handles relaxing for SH ELF. See the corresponding
491 function in coff-sh.c for a description of what this does. FIXME:
492 There is a lot of duplication here between this code and the COFF
493 specific code. The format of relocs and symbols is wound deeply
494 into this code, but it would still be better if the duplication
495 could be eliminated somehow. Note in particular that although both
496 functions use symbols like R_SH_CODE, those symbols have different
497 values; in coff-sh.c they come from include/coff/sh.h, whereas here
498 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
501 sh_elf_relax_section (bfd *abfd, asection *sec,
502 struct bfd_link_info *link_info, bfd_boolean *again)
504 Elf_Internal_Shdr *symtab_hdr;
505 Elf_Internal_Rela *internal_relocs;
506 bfd_boolean have_code;
507 Elf_Internal_Rela *irel, *irelend;
508 bfd_byte *contents = NULL;
509 Elf_Internal_Sym *isymbuf = NULL;
513 if (link_info->relocatable
514 || (sec->flags & SEC_RELOC) == 0
515 || sec->reloc_count == 0)
518 #ifdef INCLUDE_SHMEDIA
519 if (elf_section_data (sec)->this_hdr.sh_flags
520 & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED))
526 symtab_hdr = &elf_symtab_hdr (abfd);
528 internal_relocs = (_bfd_elf_link_read_relocs
529 (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
530 link_info->keep_memory));
531 if (internal_relocs == NULL)
536 irelend = internal_relocs + sec->reloc_count;
537 for (irel = internal_relocs; irel < irelend; irel++)
539 bfd_vma laddr, paddr, symval;
541 Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
544 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
547 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
550 /* Get the section contents. */
551 if (contents == NULL)
553 if (elf_section_data (sec)->this_hdr.contents != NULL)
554 contents = elf_section_data (sec)->this_hdr.contents;
557 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
562 /* The r_addend field of the R_SH_USES reloc will point us to
563 the register load. The 4 is because the r_addend field is
564 computed as though it were a jump offset, which are based
565 from 4 bytes after the jump instruction. */
566 laddr = irel->r_offset + 4 + irel->r_addend;
567 if (laddr >= sec->size)
569 (*_bfd_error_handler) (_("%B: 0x%lx: warning: bad R_SH_USES offset"),
571 (unsigned long) irel->r_offset);
574 insn = bfd_get_16 (abfd, contents + laddr);
576 /* If the instruction is not mov.l NN,rN, we don't know what to
578 if ((insn & 0xf000) != 0xd000)
580 ((*_bfd_error_handler)
581 (_("%B: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
582 abfd, (unsigned long) irel->r_offset, insn));
586 /* Get the address from which the register is being loaded. The
587 displacement in the mov.l instruction is quadrupled. It is a
588 displacement from four bytes after the movl instruction, but,
589 before adding in the PC address, two least significant bits
590 of the PC are cleared. We assume that the section is aligned
591 on a four byte boundary. */
594 paddr += (laddr + 4) &~ (bfd_vma) 3;
595 if (paddr >= sec->size)
597 ((*_bfd_error_handler)
598 (_("%B: 0x%lx: warning: bad R_SH_USES load offset"),
599 abfd, (unsigned long) irel->r_offset));
603 /* Get the reloc for the address from which the register is
604 being loaded. This reloc will tell us which function is
605 actually being called. */
606 for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
607 if (irelfn->r_offset == paddr
608 && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
610 if (irelfn >= irelend)
612 ((*_bfd_error_handler)
613 (_("%B: 0x%lx: warning: could not find expected reloc"),
614 abfd, (unsigned long) paddr));
618 /* Read this BFD's symbols if we haven't done so already. */
619 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
621 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
623 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
624 symtab_hdr->sh_info, 0,
630 /* Get the value of the symbol referred to by the reloc. */
631 if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
633 /* A local symbol. */
634 Elf_Internal_Sym *isym;
636 isym = isymbuf + ELF32_R_SYM (irelfn->r_info);
638 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec))
640 ((*_bfd_error_handler)
641 (_("%B: 0x%lx: warning: symbol in unexpected section"),
642 abfd, (unsigned long) paddr));
646 symval = (isym->st_value
647 + sec->output_section->vma
648 + sec->output_offset);
653 struct elf_link_hash_entry *h;
655 indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
656 h = elf_sym_hashes (abfd)[indx];
657 BFD_ASSERT (h != NULL);
658 if (h->root.type != bfd_link_hash_defined
659 && h->root.type != bfd_link_hash_defweak)
661 /* This appears to be a reference to an undefined
662 symbol. Just ignore it--it will be caught by the
663 regular reloc processing. */
667 symval = (h->root.u.def.value
668 + h->root.u.def.section->output_section->vma
669 + h->root.u.def.section->output_offset);
672 if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
673 symval += bfd_get_32 (abfd, contents + paddr);
675 symval += irelfn->r_addend;
677 /* See if this function call can be shortened. */
680 + sec->output_section->vma
683 /* A branch to an address beyond ours might be increased by an
684 .align that doesn't move when bytes behind us are deleted.
685 So, we add some slop in this calculation to allow for
687 if (foff < -0x1000 || foff >= 0x1000 - 8)
689 /* After all that work, we can't shorten this function call. */
693 /* Shorten the function call. */
695 /* For simplicity of coding, we are going to modify the section
696 contents, the section relocs, and the BFD symbol table. We
697 must tell the rest of the code not to free up this
698 information. It would be possible to instead create a table
699 of changes which have to be made, as is done in coff-mips.c;
700 that would be more work, but would require less memory when
701 the linker is run. */
703 elf_section_data (sec)->relocs = internal_relocs;
704 elf_section_data (sec)->this_hdr.contents = contents;
705 symtab_hdr->contents = (unsigned char *) isymbuf;
707 /* Replace the jsr with a bsr. */
709 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
710 replace the jsr with a bsr. */
711 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
712 /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
713 here, but that only checks if the symbol is an external symbol,
714 not if the symbol is in a different section. Besides, we need
715 a consistent meaning for the relocation, so we just assume here that
716 the value of the symbol is not available. */
718 /* We can't fully resolve this yet, because the external
719 symbol value may be changed by future relaxing. We let
720 the final link phase handle it. */
721 bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset);
725 /* When we calculated the symbol "value" we had an offset in the
726 DIR32's word in memory (we read and add it above). However,
727 the jsr we create does NOT have this offset encoded, so we
728 have to add it to the addend to preserve it. */
729 irel->r_addend += bfd_get_32 (abfd, contents + paddr);
731 /* See if there is another R_SH_USES reloc referring to the same
733 for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
734 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
735 && laddr == irelscan->r_offset + 4 + irelscan->r_addend)
737 if (irelscan < irelend)
739 /* Some other function call depends upon this register load,
740 and we have not yet converted that function call.
741 Indeed, we may never be able to convert it. There is
742 nothing else we can do at this point. */
746 /* Look for a R_SH_COUNT reloc on the location where the
747 function address is stored. Do this before deleting any
748 bytes, to avoid confusion about the address. */
749 for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
750 if (irelcount->r_offset == paddr
751 && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
754 /* Delete the register load. */
755 if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
758 /* That will change things, so, just in case it permits some
759 other function call to come within range, we should relax
760 again. Note that this is not required, and it may be slow. */
763 /* Now check whether we got a COUNT reloc. */
764 if (irelcount >= irelend)
766 ((*_bfd_error_handler)
767 (_("%B: 0x%lx: warning: could not find expected COUNT reloc"),
768 abfd, (unsigned long) paddr));
772 /* The number of uses is stored in the r_addend field. We've
774 if (irelcount->r_addend == 0)
776 ((*_bfd_error_handler) (_("%B: 0x%lx: warning: bad count"),
778 (unsigned long) paddr));
782 --irelcount->r_addend;
784 /* If there are no more uses, we can delete the address. Reload
785 the address from irelfn, in case it was changed by the
786 previous call to sh_elf_relax_delete_bytes. */
787 if (irelcount->r_addend == 0)
789 if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
793 /* We've done all we can with that function call. */
796 /* Look for load and store instructions that we can align on four
798 if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4
803 /* Get the section contents. */
804 if (contents == NULL)
806 if (elf_section_data (sec)->this_hdr.contents != NULL)
807 contents = elf_section_data (sec)->this_hdr.contents;
810 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
815 if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
821 elf_section_data (sec)->relocs = internal_relocs;
822 elf_section_data (sec)->this_hdr.contents = contents;
823 symtab_hdr->contents = (unsigned char *) isymbuf;
828 && symtab_hdr->contents != (unsigned char *) isymbuf)
830 if (! link_info->keep_memory)
834 /* Cache the symbols for elf_link_input_bfd. */
835 symtab_hdr->contents = (unsigned char *) isymbuf;
840 && elf_section_data (sec)->this_hdr.contents != contents)
842 if (! link_info->keep_memory)
846 /* Cache the section contents for elf_link_input_bfd. */
847 elf_section_data (sec)->this_hdr.contents = contents;
851 if (internal_relocs != NULL
852 && elf_section_data (sec)->relocs != internal_relocs)
853 free (internal_relocs);
859 && symtab_hdr->contents != (unsigned char *) isymbuf)
862 && elf_section_data (sec)->this_hdr.contents != contents)
864 if (internal_relocs != NULL
865 && elf_section_data (sec)->relocs != internal_relocs)
866 free (internal_relocs);
871 /* Delete some bytes from a section while relaxing. FIXME: There is a
872 lot of duplication between this function and sh_relax_delete_bytes
876 sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr,
879 Elf_Internal_Shdr *symtab_hdr;
880 unsigned int sec_shndx;
882 Elf_Internal_Rela *irel, *irelend;
883 Elf_Internal_Rela *irelalign;
885 Elf_Internal_Sym *isymbuf, *isym, *isymend;
886 struct elf_link_hash_entry **sym_hashes;
887 struct elf_link_hash_entry **end_hashes;
888 unsigned int symcount;
891 symtab_hdr = &elf_symtab_hdr (abfd);
892 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
894 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
896 contents = elf_section_data (sec)->this_hdr.contents;
898 /* The deletion must stop at the next ALIGN reloc for an aligment
899 power larger than the number of bytes we are deleting. */
904 irel = elf_section_data (sec)->relocs;
905 irelend = irel + sec->reloc_count;
906 for (; irel < irelend; irel++)
908 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
909 && irel->r_offset > addr
910 && count < (1 << irel->r_addend))
913 toaddr = irel->r_offset;
918 /* Actually delete the bytes. */
919 memmove (contents + addr, contents + addr + count,
920 (size_t) (toaddr - addr - count));
921 if (irelalign == NULL)
927 #define NOP_OPCODE (0x0009)
929 BFD_ASSERT ((count & 1) == 0);
930 for (i = 0; i < count; i += 2)
931 bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i);
934 /* Adjust all the relocs. */
935 for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
937 bfd_vma nraddr, stop;
940 int off, adjust, oinsn;
941 bfd_signed_vma voff = 0;
942 bfd_boolean overflow;
944 /* Get the new reloc address. */
945 nraddr = irel->r_offset;
946 if ((irel->r_offset > addr
947 && irel->r_offset < toaddr)
948 || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
949 && irel->r_offset == toaddr))
952 /* See if this reloc was for the bytes we have deleted, in which
953 case we no longer care about it. Don't delete relocs which
954 represent addresses, though. */
955 if (irel->r_offset >= addr
956 && irel->r_offset < addr + count
957 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
958 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
959 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
960 && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
961 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
964 /* If this is a PC relative reloc, see if the range it covers
965 includes the bytes we have deleted. */
966 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
975 start = irel->r_offset;
976 insn = bfd_get_16 (abfd, contents + nraddr);
980 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
987 /* If this reloc is against a symbol defined in this
988 section, and the symbol will not be adjusted below, we
989 must check the addend to see it will put the value in
990 range to be adjusted, and hence must be changed. */
991 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
993 isym = isymbuf + ELF32_R_SYM (irel->r_info);
994 if (isym->st_shndx == sec_shndx
995 && (isym->st_value <= addr
996 || isym->st_value >= toaddr))
1000 if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace)
1002 val = bfd_get_32 (abfd, contents + nraddr);
1003 val += isym->st_value;
1004 if (val > addr && val < toaddr)
1005 bfd_put_32 (abfd, val - count, contents + nraddr);
1009 val = isym->st_value + irel->r_addend;
1010 if (val > addr && val < toaddr)
1011 irel->r_addend -= count;
1015 start = stop = addr;
1022 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
1029 /* This has been made by previous relaxation. Since the
1030 relocation will be against an external symbol, the
1031 final relocation will just do the right thing. */
1032 start = stop = addr;
1038 stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
1040 /* The addend will be against the section symbol, thus
1041 for adjusting the addend, the relevant start is the
1042 start of the section.
1043 N.B. If we want to abandon in-place changes here and
1044 test directly using symbol + addend, we have to take into
1045 account that the addend has already been adjusted by -4. */
1046 if (stop > addr && stop < toaddr)
1047 irel->r_addend -= count;
1053 stop = start + 4 + off * 2;
1058 stop = (start & ~(bfd_vma) 3) + 4 + off * 4;
1064 /* These relocs types represent
1066 The r_addend field holds the difference between the reloc
1067 address and L1. That is the start of the reloc, and
1068 adding in the contents gives us the top. We must adjust
1069 both the r_offset field and the section contents.
1070 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
1071 and the elf bfd r_offset is called r_vaddr. */
1073 stop = irel->r_offset;
1074 start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
1078 && (stop <= addr || stop >= toaddr))
1079 irel->r_addend += count;
1080 else if (stop > addr
1082 && (start <= addr || start >= toaddr))
1083 irel->r_addend -= count;
1085 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
1086 voff = bfd_get_signed_16 (abfd, contents + nraddr);
1087 else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
1088 voff = bfd_get_8 (abfd, contents + nraddr);
1090 voff = bfd_get_signed_32 (abfd, contents + nraddr);
1091 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1096 start = irel->r_offset;
1097 stop = (bfd_vma) ((bfd_signed_vma) start
1098 + (long) irel->r_addend
1105 && (stop <= addr || stop >= toaddr))
1107 else if (stop > addr
1109 && (start <= addr || start >= toaddr))
1118 switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
1127 if ((oinsn & 0xff00) != (insn & 0xff00))
1129 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1134 if ((oinsn & 0xf000) != (insn & 0xf000))
1136 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1140 BFD_ASSERT (adjust == count || count >= 4);
1145 if ((irel->r_offset & 3) == 0)
1148 if ((oinsn & 0xff00) != (insn & 0xff00))
1150 bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr);
1155 if (voff < 0 || voff >= 0xff)
1157 bfd_put_8 (abfd, voff, contents + nraddr);
1162 if (voff < - 0x8000 || voff >= 0x8000)
1164 bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr);
1169 bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr);
1173 irel->r_addend += adjust;
1179 ((*_bfd_error_handler)
1180 (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
1181 abfd, (unsigned long) irel->r_offset));
1182 bfd_set_error (bfd_error_bad_value);
1187 irel->r_offset = nraddr;
1190 /* Look through all the other sections. If there contain any IMM32
1191 relocs against internal symbols which we are not going to adjust
1192 below, we may need to adjust the addends. */
1193 for (o = abfd->sections; o != NULL; o = o->next)
1195 Elf_Internal_Rela *internal_relocs;
1196 Elf_Internal_Rela *irelscan, *irelscanend;
1197 bfd_byte *ocontents;
1200 || (o->flags & SEC_RELOC) == 0
1201 || o->reloc_count == 0)
1204 /* We always cache the relocs. Perhaps, if info->keep_memory is
1205 FALSE, we should free them, if we are permitted to, when we
1206 leave sh_coff_relax_section. */
1207 internal_relocs = (_bfd_elf_link_read_relocs
1208 (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE));
1209 if (internal_relocs == NULL)
1213 irelscanend = internal_relocs + o->reloc_count;
1214 for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
1216 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
1217 if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
1219 bfd_vma start, stop;
1220 bfd_signed_vma voff;
1222 if (ocontents == NULL)
1224 if (elf_section_data (o)->this_hdr.contents != NULL)
1225 ocontents = elf_section_data (o)->this_hdr.contents;
1228 /* We always cache the section contents.
1229 Perhaps, if info->keep_memory is FALSE, we
1230 should free them, if we are permitted to,
1231 when we leave sh_coff_relax_section. */
1232 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1234 if (ocontents != NULL)
1239 elf_section_data (o)->this_hdr.contents = ocontents;
1243 stop = irelscan->r_offset;
1245 = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
1247 /* STOP is in a different section, so it won't change. */
1248 if (start > addr && start < toaddr)
1249 irelscan->r_addend += count;
1251 voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
1252 stop = (bfd_vma) ((bfd_signed_vma) start + voff);
1256 && (stop <= addr || stop >= toaddr))
1257 bfd_put_signed_32 (abfd, (bfd_vma) voff + count,
1258 ocontents + irelscan->r_offset);
1259 else if (stop > addr
1261 && (start <= addr || start >= toaddr))
1262 bfd_put_signed_32 (abfd, (bfd_vma) voff - count,
1263 ocontents + irelscan->r_offset);
1266 if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
1269 if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
1273 isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
1274 if (isym->st_shndx == sec_shndx
1275 && (isym->st_value <= addr
1276 || isym->st_value >= toaddr))
1280 if (ocontents == NULL)
1282 if (elf_section_data (o)->this_hdr.contents != NULL)
1283 ocontents = elf_section_data (o)->this_hdr.contents;
1286 /* We always cache the section contents.
1287 Perhaps, if info->keep_memory is FALSE, we
1288 should free them, if we are permitted to,
1289 when we leave sh_coff_relax_section. */
1290 if (!bfd_malloc_and_get_section (abfd, o, &ocontents))
1292 if (ocontents != NULL)
1297 elf_section_data (o)->this_hdr.contents = ocontents;
1301 val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
1302 val += isym->st_value;
1303 if (val > addr && val < toaddr)
1304 bfd_put_32 (abfd, val - count,
1305 ocontents + irelscan->r_offset);
1310 /* Adjust the local symbols defined in this section. */
1311 isymend = isymbuf + symtab_hdr->sh_info;
1312 for (isym = isymbuf; isym < isymend; isym++)
1314 if (isym->st_shndx == sec_shndx
1315 && isym->st_value > addr
1316 && isym->st_value < toaddr)
1317 isym->st_value -= count;
1320 /* Now adjust the global symbols defined in this section. */
1321 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1322 - symtab_hdr->sh_info);
1323 sym_hashes = elf_sym_hashes (abfd);
1324 end_hashes = sym_hashes + symcount;
1325 for (; sym_hashes < end_hashes; sym_hashes++)
1327 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1328 if ((sym_hash->root.type == bfd_link_hash_defined
1329 || sym_hash->root.type == bfd_link_hash_defweak)
1330 && sym_hash->root.u.def.section == sec
1331 && sym_hash->root.u.def.value > addr
1332 && sym_hash->root.u.def.value < toaddr)
1334 sym_hash->root.u.def.value -= count;
1338 /* See if we can move the ALIGN reloc forward. We have adjusted
1339 r_offset for it already. */
1340 if (irelalign != NULL)
1342 bfd_vma alignto, alignaddr;
1344 alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
1345 alignaddr = BFD_ALIGN (irelalign->r_offset,
1346 1 << irelalign->r_addend);
1347 if (alignto != alignaddr)
1349 /* Tail recursion. */
1350 return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
1351 (int) (alignto - alignaddr));
1358 /* Look for loads and stores which we can align to four byte
1359 boundaries. This is like sh_align_loads in coff-sh.c. */
1362 sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
1363 Elf_Internal_Rela *internal_relocs,
1364 bfd_byte *contents ATTRIBUTE_UNUSED,
1365 bfd_boolean *pswapped)
1367 Elf_Internal_Rela *irel, *irelend;
1368 bfd_vma *labels = NULL;
1369 bfd_vma *label, *label_end;
1374 irelend = internal_relocs + sec->reloc_count;
1376 /* Get all the addresses with labels on them. */
1377 amt = sec->reloc_count;
1378 amt *= sizeof (bfd_vma);
1379 labels = (bfd_vma *) bfd_malloc (amt);
1383 for (irel = internal_relocs; irel < irelend; irel++)
1385 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
1387 *label_end = irel->r_offset;
1392 /* Note that the assembler currently always outputs relocs in
1393 address order. If that ever changes, this code will need to sort
1394 the label values and the relocs. */
1398 for (irel = internal_relocs; irel < irelend; irel++)
1400 bfd_vma start, stop;
1402 if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
1405 start = irel->r_offset;
1407 for (irel++; irel < irelend; irel++)
1408 if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
1411 stop = irel->r_offset;
1415 if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
1416 internal_relocs, &label,
1417 label_end, start, stop, pswapped))
1432 /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
1435 sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs,
1436 bfd_byte *contents, bfd_vma addr)
1438 Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
1439 unsigned short i1, i2;
1440 Elf_Internal_Rela *irel, *irelend;
1442 /* Swap the instructions themselves. */
1443 i1 = bfd_get_16 (abfd, contents + addr);
1444 i2 = bfd_get_16 (abfd, contents + addr + 2);
1445 bfd_put_16 (abfd, (bfd_vma) i2, contents + addr);
1446 bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2);
1448 /* Adjust all reloc addresses. */
1449 irelend = internal_relocs + sec->reloc_count;
1450 for (irel = internal_relocs; irel < irelend; irel++)
1452 enum elf_sh_reloc_type type;
1455 /* There are a few special types of relocs that we don't want to
1456 adjust. These relocs do not apply to the instruction itself,
1457 but are only associated with the address. */
1458 type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
1459 if (type == R_SH_ALIGN
1460 || type == R_SH_CODE
1461 || type == R_SH_DATA
1462 || type == R_SH_LABEL)
1465 /* If an R_SH_USES reloc points to one of the addresses being
1466 swapped, we must adjust it. It would be incorrect to do this
1467 for a jump, though, since we want to execute both
1468 instructions after the jump. (We have avoided swapping
1469 around a label, so the jump will not wind up executing an
1470 instruction it shouldn't). */
1471 if (type == R_SH_USES)
1475 off = irel->r_offset + 4 + irel->r_addend;
1477 irel->r_offset += 2;
1478 else if (off == addr + 2)
1479 irel->r_offset -= 2;
1482 if (irel->r_offset == addr)
1484 irel->r_offset += 2;
1487 else if (irel->r_offset == addr + 2)
1489 irel->r_offset -= 2;
1498 unsigned short insn, oinsn;
1499 bfd_boolean overflow;
1501 loc = contents + irel->r_offset;
1510 insn = bfd_get_16 (abfd, loc);
1513 if ((oinsn & 0xff00) != (insn & 0xff00))
1515 bfd_put_16 (abfd, (bfd_vma) insn, loc);
1519 insn = bfd_get_16 (abfd, loc);
1522 if ((oinsn & 0xf000) != (insn & 0xf000))
1524 bfd_put_16 (abfd, (bfd_vma) insn, loc);
1528 /* This reloc ignores the least significant 3 bits of
1529 the program counter before adding in the offset.
1530 This means that if ADDR is at an even address, the
1531 swap will not affect the offset. If ADDR is an at an
1532 odd address, then the instruction will be crossing a
1533 four byte boundary, and must be adjusted. */
1534 if ((addr & 3) != 0)
1536 insn = bfd_get_16 (abfd, loc);
1539 if ((oinsn & 0xff00) != (insn & 0xff00))
1541 bfd_put_16 (abfd, (bfd_vma) insn, loc);
1549 ((*_bfd_error_handler)
1550 (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
1551 abfd, (unsigned long) irel->r_offset));
1552 bfd_set_error (bfd_error_bad_value);
1560 #endif /* defined SH64_ELF */
1562 /* Describes one of the various PLT styles. */
1564 struct elf_sh_plt_info
1566 /* The template for the first PLT entry, or NULL if there is no special
1568 const bfd_byte *plt0_entry;
1570 /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */
1571 bfd_vma plt0_entry_size;
1573 /* Index I is the offset into PLT0_ENTRY of a pointer to
1574 _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE
1575 if there is no such pointer. */
1576 bfd_vma plt0_got_fields[3];
1578 /* The template for a symbol's PLT entry. */
1579 const bfd_byte *symbol_entry;
1581 /* The size of SYMBOL_ENTRY in bytes. */
1582 bfd_vma symbol_entry_size;
1584 /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used
1585 on all targets. The comments by each member indicate the value
1586 that the field must hold. */
1588 bfd_vma got_entry; /* the address of the symbol's .got.plt entry */
1589 bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */
1590 bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */
1591 bfd_boolean got20; /* TRUE if got_entry points to a movi20
1592 instruction (instead of a constant pool
1596 /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
1597 bfd_vma symbol_resolve_offset;
1599 /* A different PLT layout which can be used for the first
1600 MAX_SHORT_PLT entries. It must share the same plt0. NULL in
1602 const struct elf_sh_plt_info *short_plt;
1605 #ifdef INCLUDE_SHMEDIA
1607 /* The size in bytes of an entry in the procedure linkage table. */
1609 #define ELF_PLT_ENTRY_SIZE 64
1611 /* First entry in an absolute procedure linkage table look like this. */
1613 static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
1615 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */
1616 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
1617 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
1618 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1619 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
1620 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1621 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1622 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1623 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1624 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1625 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1626 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1627 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1628 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1629 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1630 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1633 static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
1635 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
1636 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
1637 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
1638 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1639 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
1640 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1641 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1642 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1643 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1644 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1645 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1646 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1647 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1648 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1649 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1650 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1653 /* Sebsequent entries in an absolute procedure linkage table look like
1656 static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
1658 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */
1659 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
1660 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */
1661 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1662 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1663 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1664 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1665 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1666 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
1667 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
1668 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1669 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
1670 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
1671 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1672 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1673 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1676 static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
1678 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
1679 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
1680 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */
1681 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1682 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1683 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1684 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1685 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1686 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
1687 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
1688 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1689 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
1690 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
1691 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1692 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1693 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1696 /* Entries in a PIC procedure linkage table look like this. */
1698 static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
1700 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
1701 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
1702 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */
1703 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1704 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1705 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1706 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1707 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1708 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
1709 0x00, 0xc8, 0x45, 0x10, /* add.l r12, r17, r17 */
1710 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
1711 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1712 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
1713 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
1714 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
1715 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1718 static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
1720 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
1721 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
1722 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */
1723 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1724 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1725 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1726 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1727 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1728 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
1729 0x10, 0x45, 0xc8, 0x00, /* add.l r12, r17, r17 */
1730 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
1731 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1732 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
1733 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
1734 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
1735 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1738 static const struct elf_sh_plt_info elf_sh_plts[2][2] = {
1741 /* Big-endian non-PIC. */
1742 elf_sh_plt0_entry_be,
1744 { 0, MINUS_ONE, MINUS_ONE },
1745 elf_sh_plt_entry_be,
1747 { 0, 32, 48, FALSE },
1748 33, /* includes ISA encoding */
1752 /* Little-endian non-PIC. */
1753 elf_sh_plt0_entry_le,
1755 { 0, MINUS_ONE, MINUS_ONE },
1756 elf_sh_plt_entry_le,
1758 { 0, 32, 48, FALSE },
1759 33, /* includes ISA encoding */
1765 /* Big-endian PIC. */
1766 elf_sh_plt0_entry_be,
1768 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1769 elf_sh_pic_plt_entry_be,
1771 { 0, MINUS_ONE, 52, FALSE },
1772 33, /* includes ISA encoding */
1776 /* Little-endian PIC. */
1777 elf_sh_plt0_entry_le,
1779 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1780 elf_sh_pic_plt_entry_le,
1782 { 0, MINUS_ONE, 52, FALSE },
1783 33, /* includes ISA encoding */
1789 /* Return offset of the linker in PLT0 entry. */
1790 #define elf_sh_plt0_gotplt_offset(info) 0
1792 /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
1793 VALUE is the field's value and CODE_P is true if VALUE refers to code,
1796 On SH64, each 32-bit field is loaded by a movi/shori pair. */
1799 install_plt_field (bfd *output_bfd, bfd_boolean code_p,
1800 unsigned long value, bfd_byte *addr)
1803 bfd_put_32 (output_bfd,
1804 bfd_get_32 (output_bfd, addr)
1805 | ((value >> 6) & 0x3fffc00),
1807 bfd_put_32 (output_bfd,
1808 bfd_get_32 (output_bfd, addr + 4)
1809 | ((value << 10) & 0x3fffc00),
1813 /* Return the type of PLT associated with ABFD. PIC_P is true if
1814 the object is position-independent. */
1816 static const struct elf_sh_plt_info *
1817 get_plt_info (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean pic_p)
1819 return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)];
1822 /* The size in bytes of an entry in the procedure linkage table. */
1824 #define ELF_PLT_ENTRY_SIZE 28
1826 /* First entry in an absolute procedure linkage table look like this. */
1828 /* Note - this code has been "optimised" not to use r2. r2 is used by
1829 GCC to return the address of large structures, so it should not be
1830 corrupted here. This does mean however, that this PLT does not conform
1831 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
1832 and r2 contains the GOT id. This version stores the GOT id in r0 and
1833 ignores the type. Loaders can easily detect this difference however,
1834 since the type will always be 0 or 8, and the GOT ids will always be
1835 greater than or equal to 12. */
1836 static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] =
1838 0xd0, 0x05, /* mov.l 2f,r0 */
1839 0x60, 0x02, /* mov.l @r0,r0 */
1840 0x2f, 0x06, /* mov.l r0,@-r15 */
1841 0xd0, 0x03, /* mov.l 1f,r0 */
1842 0x60, 0x02, /* mov.l @r0,r0 */
1843 0x40, 0x2b, /* jmp @r0 */
1844 0x60, 0xf6, /* mov.l @r15+,r0 */
1845 0x00, 0x09, /* nop */
1846 0x00, 0x09, /* nop */
1847 0x00, 0x09, /* nop */
1848 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1849 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1852 static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] =
1854 0x05, 0xd0, /* mov.l 2f,r0 */
1855 0x02, 0x60, /* mov.l @r0,r0 */
1856 0x06, 0x2f, /* mov.l r0,@-r15 */
1857 0x03, 0xd0, /* mov.l 1f,r0 */
1858 0x02, 0x60, /* mov.l @r0,r0 */
1859 0x2b, 0x40, /* jmp @r0 */
1860 0xf6, 0x60, /* mov.l @r15+,r0 */
1861 0x09, 0x00, /* nop */
1862 0x09, 0x00, /* nop */
1863 0x09, 0x00, /* nop */
1864 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1865 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1868 /* Sebsequent entries in an absolute procedure linkage table look like
1871 static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
1873 0xd0, 0x04, /* mov.l 1f,r0 */
1874 0x60, 0x02, /* mov.l @(r0,r12),r0 */
1875 0xd1, 0x02, /* mov.l 0f,r1 */
1876 0x40, 0x2b, /* jmp @r0 */
1877 0x60, 0x13, /* mov r1,r0 */
1878 0xd1, 0x03, /* mov.l 2f,r1 */
1879 0x40, 0x2b, /* jmp @r0 */
1880 0x00, 0x09, /* nop */
1881 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1882 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1883 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1886 static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
1888 0x04, 0xd0, /* mov.l 1f,r0 */
1889 0x02, 0x60, /* mov.l @r0,r0 */
1890 0x02, 0xd1, /* mov.l 0f,r1 */
1891 0x2b, 0x40, /* jmp @r0 */
1892 0x13, 0x60, /* mov r1,r0 */
1893 0x03, 0xd1, /* mov.l 2f,r1 */
1894 0x2b, 0x40, /* jmp @r0 */
1895 0x09, 0x00, /* nop */
1896 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1897 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1898 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1901 /* Entries in a PIC procedure linkage table look like this. */
1903 static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] =
1905 0xd0, 0x04, /* mov.l 1f,r0 */
1906 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1907 0x40, 0x2b, /* jmp @r0 */
1908 0x00, 0x09, /* nop */
1909 0x50, 0xc2, /* mov.l @(8,r12),r0 */
1910 0xd1, 0x03, /* mov.l 2f,r1 */
1911 0x40, 0x2b, /* jmp @r0 */
1912 0x50, 0xc1, /* mov.l @(4,r12),r0 */
1913 0x00, 0x09, /* nop */
1914 0x00, 0x09, /* nop */
1915 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1916 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1919 static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] =
1921 0x04, 0xd0, /* mov.l 1f,r0 */
1922 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1923 0x2b, 0x40, /* jmp @r0 */
1924 0x09, 0x00, /* nop */
1925 0xc2, 0x50, /* mov.l @(8,r12),r0 */
1926 0x03, 0xd1, /* mov.l 2f,r1 */
1927 0x2b, 0x40, /* jmp @r0 */
1928 0xc1, 0x50, /* mov.l @(4,r12),r0 */
1929 0x09, 0x00, /* nop */
1930 0x09, 0x00, /* nop */
1931 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1932 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1935 static const struct elf_sh_plt_info elf_sh_plts[2][2] = {
1938 /* Big-endian non-PIC. */
1939 elf_sh_plt0_entry_be,
1941 { MINUS_ONE, 24, 20 },
1942 elf_sh_plt_entry_be,
1944 { 20, 16, 24, FALSE },
1949 /* Little-endian non-PIC. */
1950 elf_sh_plt0_entry_le,
1952 { MINUS_ONE, 24, 20 },
1953 elf_sh_plt_entry_le,
1955 { 20, 16, 24, FALSE },
1962 /* Big-endian PIC. */
1963 elf_sh_plt0_entry_be,
1965 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1966 elf_sh_pic_plt_entry_be,
1968 { 20, MINUS_ONE, 24, FALSE },
1973 /* Little-endian PIC. */
1974 elf_sh_plt0_entry_le,
1976 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
1977 elf_sh_pic_plt_entry_le,
1979 { 20, MINUS_ONE, 24, FALSE },
1986 #define VXWORKS_PLT_HEADER_SIZE 12
1987 #define VXWORKS_PLT_ENTRY_SIZE 24
1989 static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] =
1991 0xd1, 0x01, /* mov.l @(8,pc),r1 */
1992 0x61, 0x12, /* mov.l @r1,r1 */
1993 0x41, 0x2b, /* jmp @r1 */
1994 0x00, 0x09, /* nop */
1995 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1998 static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] =
2000 0x01, 0xd1, /* mov.l @(8,pc),r1 */
2001 0x12, 0x61, /* mov.l @r1,r1 */
2002 0x2b, 0x41, /* jmp @r1 */
2003 0x09, 0x00, /* nop */
2004 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
2007 static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
2009 0xd0, 0x01, /* mov.l @(8,pc),r0 */
2010 0x60, 0x02, /* mov.l @r0,r0 */
2011 0x40, 0x2b, /* jmp @r0 */
2012 0x00, 0x09, /* nop */
2013 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
2014 0xd0, 0x01, /* mov.l @(8,pc),r0 */
2015 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */
2016 0x00, 0x09, /* nop */
2017 0x00, 0x09, /* nop */
2018 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2021 static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
2023 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2024 0x02, 0x60, /* mov.l @r0,r0 */
2025 0x2b, 0x40, /* jmp @r0 */
2026 0x09, 0x00, /* nop */
2027 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
2028 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2029 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */
2030 0x09, 0x00, /* nop */
2031 0x09, 0x00, /* nop */
2032 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2035 static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] =
2037 0xd0, 0x01, /* mov.l @(8,pc),r0 */
2038 0x00, 0xce, /* mov.l @(r0,r12),r0 */
2039 0x40, 0x2b, /* jmp @r0 */
2040 0x00, 0x09, /* nop */
2041 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
2042 0xd0, 0x01, /* mov.l @(8,pc),r0 */
2043 0x51, 0xc2, /* mov.l @(8,r12),r1 */
2044 0x41, 0x2b, /* jmp @r1 */
2045 0x00, 0x09, /* nop */
2046 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2049 static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] =
2051 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2052 0xce, 0x00, /* mov.l @(r0,r12),r0 */
2053 0x2b, 0x40, /* jmp @r0 */
2054 0x09, 0x00, /* nop */
2055 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
2056 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2057 0xc2, 0x51, /* mov.l @(8,r12),r1 */
2058 0x2b, 0x41, /* jmp @r1 */
2059 0x09, 0x00, /* nop */
2060 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2063 static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = {
2066 /* Big-endian non-PIC. */
2067 vxworks_sh_plt0_entry_be,
2068 VXWORKS_PLT_HEADER_SIZE,
2069 { MINUS_ONE, MINUS_ONE, 8 },
2070 vxworks_sh_plt_entry_be,
2071 VXWORKS_PLT_ENTRY_SIZE,
2072 { 8, 14, 20, FALSE },
2077 /* Little-endian non-PIC. */
2078 vxworks_sh_plt0_entry_le,
2079 VXWORKS_PLT_HEADER_SIZE,
2080 { MINUS_ONE, MINUS_ONE, 8 },
2081 vxworks_sh_plt_entry_le,
2082 VXWORKS_PLT_ENTRY_SIZE,
2083 { 8, 14, 20, FALSE },
2090 /* Big-endian PIC. */
2093 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2094 vxworks_sh_pic_plt_entry_be,
2095 VXWORKS_PLT_ENTRY_SIZE,
2096 { 8, MINUS_ONE, 20, FALSE },
2101 /* Little-endian PIC. */
2104 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2105 vxworks_sh_pic_plt_entry_le,
2106 VXWORKS_PLT_ENTRY_SIZE,
2107 { 8, MINUS_ONE, 20, FALSE },
2114 /* FDPIC PLT entries. Two unimplemented optimizations for lazy
2115 binding are to omit the lazy binding stub when linking with -z now
2116 and to move lazy binding stubs into a separate region for better
2119 #define FDPIC_PLT_ENTRY_SIZE 28
2120 #define FDPIC_PLT_LAZY_OFFSET 20
2122 /* FIXME: The lazy binding stub requires a plt0 - which may need to be
2123 duplicated if it is out of range, or which can be inlined. So
2124 right now it is always inlined, which wastes a word per stub. It
2125 might be easier to handle the duplication if we put the lazy
2126 stubs separately. */
2128 static const bfd_byte fdpic_sh_plt_entry_be[FDPIC_PLT_ENTRY_SIZE] =
2130 0xd0, 0x02, /* mov.l @(12,pc),r0 */
2131 0x01, 0xce, /* mov.l @(r0,r12),r1 */
2132 0x70, 0x04, /* add #4, r0 */
2133 0x41, 0x2b, /* jmp @r1 */
2134 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
2135 0x00, 0x09, /* nop */
2136 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
2137 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2138 0x60, 0xc2, /* mov.l @r12,r0 */
2139 0x40, 0x2b, /* jmp @r0 */
2140 0x53, 0xc1, /* mov.l @(4,r12),r3 */
2141 0x00, 0x09, /* nop */
2144 static const bfd_byte fdpic_sh_plt_entry_le[FDPIC_PLT_ENTRY_SIZE] =
2146 0x02, 0xd0, /* mov.l @(12,pc),r0 */
2147 0xce, 0x01, /* mov.l @(r0,r12),r1 */
2148 0x04, 0x70, /* add #4, r0 */
2149 0x2b, 0x41, /* jmp @r1 */
2150 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
2151 0x09, 0x00, /* nop */
2152 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
2153 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2154 0xc2, 0x60, /* mov.l @r12,r0 */
2155 0x2b, 0x40, /* jmp @r0 */
2156 0xc1, 0x53, /* mov.l @(4,r12),r3 */
2157 0x09, 0x00, /* nop */
2160 static const struct elf_sh_plt_info fdpic_sh_plts[2] = {
2162 /* Big-endian PIC. */
2165 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2166 fdpic_sh_plt_entry_be,
2167 FDPIC_PLT_ENTRY_SIZE,
2168 { 12, MINUS_ONE, 16, FALSE },
2169 FDPIC_PLT_LAZY_OFFSET,
2173 /* Little-endian PIC. */
2176 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2177 fdpic_sh_plt_entry_le,
2178 FDPIC_PLT_ENTRY_SIZE,
2179 { 12, MINUS_ONE, 16, FALSE },
2180 FDPIC_PLT_LAZY_OFFSET,
2185 /* On SH2A, we can use the movi20 instruction to generate shorter PLT
2186 entries for the first 64K slots. We use the normal FDPIC PLT entry
2187 past that point; we could also use movi20s, which might be faster,
2188 but would not be any smaller. */
2190 #define FDPIC_SH2A_PLT_ENTRY_SIZE 24
2191 #define FDPIC_SH2A_PLT_LAZY_OFFSET 16
2193 static const bfd_byte fdpic_sh2a_plt_entry_be[FDPIC_SH2A_PLT_ENTRY_SIZE] =
2195 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
2196 0x01, 0xce, /* mov.l @(r0,r12),r1 */
2197 0x70, 0x04, /* add #4, r0 */
2198 0x41, 0x2b, /* jmp @r1 */
2199 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
2200 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2201 0x60, 0xc2, /* mov.l @r12,r0 */
2202 0x40, 0x2b, /* jmp @r0 */
2203 0x53, 0xc1, /* mov.l @(4,r12),r3 */
2204 0x00, 0x09, /* nop */
2207 static const bfd_byte fdpic_sh2a_plt_entry_le[FDPIC_SH2A_PLT_ENTRY_SIZE] =
2209 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
2210 0xce, 0x01, /* mov.l @(r0,r12),r1 */
2211 0x04, 0x70, /* add #4, r0 */
2212 0x2b, 0x41, /* jmp @r1 */
2213 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
2214 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2215 0xc2, 0x60, /* mov.l @r12,r0 */
2216 0x2b, 0x40, /* jmp @r0 */
2217 0xc1, 0x53, /* mov.l @(4,r12),r3 */
2218 0x09, 0x00, /* nop */
2221 static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be = {
2222 /* Big-endian FDPIC, max index 64K. */
2225 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2226 fdpic_sh2a_plt_entry_be,
2227 FDPIC_SH2A_PLT_ENTRY_SIZE,
2228 { 0, MINUS_ONE, 12, TRUE },
2229 FDPIC_SH2A_PLT_LAZY_OFFSET,
2233 static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le = {
2234 /* Little-endian FDPIC, max index 64K. */
2237 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2238 fdpic_sh2a_plt_entry_le,
2239 FDPIC_SH2A_PLT_ENTRY_SIZE,
2240 { 0, MINUS_ONE, 12, TRUE },
2241 FDPIC_SH2A_PLT_LAZY_OFFSET,
2245 static const struct elf_sh_plt_info fdpic_sh2a_plts[2] = {
2247 /* Big-endian PIC. */
2250 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2251 fdpic_sh_plt_entry_be,
2252 FDPIC_PLT_ENTRY_SIZE,
2253 { 12, MINUS_ONE, 16, FALSE },
2254 FDPIC_PLT_LAZY_OFFSET,
2255 &fdpic_sh2a_short_plt_be
2258 /* Little-endian PIC. */
2261 { MINUS_ONE, MINUS_ONE, MINUS_ONE },
2262 fdpic_sh_plt_entry_le,
2263 FDPIC_PLT_ENTRY_SIZE,
2264 { 12, MINUS_ONE, 16, FALSE },
2265 FDPIC_PLT_LAZY_OFFSET,
2266 &fdpic_sh2a_short_plt_le
2270 /* Return the type of PLT associated with ABFD. PIC_P is true if
2271 the object is position-independent. */
2273 static const struct elf_sh_plt_info *
2274 get_plt_info (bfd *abfd, bfd_boolean pic_p)
2276 if (fdpic_object_p (abfd))
2278 /* If any input file requires SH2A we can use a shorter PLT
2280 if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd)) & arch_sh2a_base)
2281 return &fdpic_sh2a_plts[!bfd_big_endian (abfd)];
2283 return &fdpic_sh_plts[!bfd_big_endian (abfd)];
2285 if (vxworks_object_p (abfd))
2286 return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)];
2287 return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)];
2290 /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
2291 VALUE is the field's value and CODE_P is true if VALUE refers to code,
2295 install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED,
2296 unsigned long value, bfd_byte *addr)
2298 bfd_put_32 (output_bfd, value, addr);
2302 /* The number of PLT entries which can use a shorter PLT, if any.
2303 Currently always 64K, since only SH-2A FDPIC uses this; a
2304 20-bit movi20 can address that many function descriptors below
2305 _GLOBAL_OFFSET_TABLE_. */
2306 #define MAX_SHORT_PLT 65536
2308 /* Return the index of the PLT entry at byte offset OFFSET. */
2311 get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset)
2313 bfd_vma plt_index = 0;
2315 offset -= info->plt0_entry_size;
2316 if (info->short_plt != NULL)
2318 if (offset > MAX_SHORT_PLT * info->short_plt->symbol_entry_size)
2320 plt_index = MAX_SHORT_PLT;
2321 offset -= MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2324 info = info->short_plt;
2326 return plt_index + offset / info->symbol_entry_size;
2329 /* Do the inverse operation. */
2332 get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index)
2336 if (info->short_plt != NULL)
2338 if (plt_index > MAX_SHORT_PLT)
2340 offset = MAX_SHORT_PLT * info->short_plt->symbol_entry_size;
2341 plt_index -= MAX_SHORT_PLT;
2344 info = info->short_plt;
2346 return (offset + info->plt0_entry_size
2347 + (plt_index * info->symbol_entry_size));
2350 /* The sh linker needs to keep track of the number of relocs that it
2351 decides to copy as dynamic relocs in check_relocs for each symbol.
2352 This is so that it can later discard them if they are found to be
2353 unnecessary. We store the information in a field extending the
2354 regular ELF linker hash table. */
2356 struct elf_sh_dyn_relocs
2358 struct elf_sh_dyn_relocs *next;
2360 /* The input section of the reloc. */
2363 /* Total number of relocs copied for the input section. */
2364 bfd_size_type count;
2366 /* Number of pc-relative relocs copied for the input section. */
2367 bfd_size_type pc_count;
2372 bfd_signed_vma refcount;
2376 /* sh ELF linker hash entry. */
2378 struct elf_sh_link_hash_entry
2380 struct elf_link_hash_entry root;
2382 #ifdef INCLUDE_SHMEDIA
2385 bfd_signed_vma refcount;
2390 /* Track dynamic relocs copied for this symbol. */
2391 struct elf_sh_dyn_relocs *dyn_relocs;
2393 bfd_signed_vma gotplt_refcount;
2395 /* A local function descriptor, for FDPIC. The refcount counts
2396 R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20
2397 relocations; the PLT and GOT entry are accounted
2398 for separately. After adjust_dynamic_symbol, the offset is
2399 MINUS_ONE if there is no local descriptor (dynamic linker
2400 managed and no PLT entry, or undefined weak non-dynamic).
2401 During check_relocs we do not yet know whether the local
2402 descriptor will be canonical. */
2403 union gotref funcdesc;
2405 /* How many of the above refcounted relocations were R_SH_FUNCDESC,
2406 and thus require fixups or relocations. */
2407 bfd_signed_vma abs_funcdesc_refcount;
2410 GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC
2414 #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
2416 struct sh_elf_obj_tdata
2418 struct elf_obj_tdata root;
2420 /* got_type for each local got entry. */
2421 char *local_got_type;
2423 /* Function descriptor refcount and offset for each local symbol. */
2424 union gotref *local_funcdesc;
2427 #define sh_elf_tdata(abfd) \
2428 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2430 #define sh_elf_local_got_type(abfd) \
2431 (sh_elf_tdata (abfd)->local_got_type)
2433 #define sh_elf_local_funcdesc(abfd) \
2434 (sh_elf_tdata (abfd)->local_funcdesc)
2436 #define is_sh_elf(bfd) \
2437 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2438 && elf_tdata (bfd) != NULL \
2439 && elf_object_id (bfd) == SH_ELF_DATA)
2441 /* Override the generic function because we need to store sh_elf_obj_tdata
2442 as the specific tdata. */
2445 sh_elf_mkobject (bfd *abfd)
2447 return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata),
2451 /* sh ELF linker hash table. */
2453 struct elf_sh_link_hash_table
2455 struct elf_link_hash_table root;
2457 /* Short-cuts to get to dynamic linker sections. */
2465 asection *sfuncdesc;
2466 asection *srelfuncdesc;
2469 /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
2472 /* Small local sym cache. */
2473 struct sym_cache sym_cache;
2475 /* A counter or offset to track a TLS got entry. */
2478 bfd_signed_vma refcount;
2482 /* The type of PLT to use. */
2483 const struct elf_sh_plt_info *plt_info;
2485 /* True if the target system is VxWorks. */
2486 bfd_boolean vxworks_p;
2488 /* True if the target system uses FDPIC. */
2489 bfd_boolean fdpic_p;
2492 /* Traverse an sh ELF linker hash table. */
2494 #define sh_elf_link_hash_traverse(table, func, info) \
2495 (elf_link_hash_traverse \
2497 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
2500 /* Get the sh ELF linker hash table from a link_info structure. */
2502 #define sh_elf_hash_table(p) \
2503 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
2504 == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL)
2506 /* Create an entry in an sh ELF linker hash table. */
2508 static struct bfd_hash_entry *
2509 sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
2510 struct bfd_hash_table *table,
2513 struct elf_sh_link_hash_entry *ret =
2514 (struct elf_sh_link_hash_entry *) entry;
2516 /* Allocate the structure if it has not already been allocated by a
2518 if (ret == (struct elf_sh_link_hash_entry *) NULL)
2519 ret = ((struct elf_sh_link_hash_entry *)
2520 bfd_hash_allocate (table,
2521 sizeof (struct elf_sh_link_hash_entry)));
2522 if (ret == (struct elf_sh_link_hash_entry *) NULL)
2523 return (struct bfd_hash_entry *) ret;
2525 /* Call the allocation method of the superclass. */
2526 ret = ((struct elf_sh_link_hash_entry *)
2527 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
2529 if (ret != (struct elf_sh_link_hash_entry *) NULL)
2531 ret->dyn_relocs = NULL;
2532 ret->gotplt_refcount = 0;
2533 #ifdef INCLUDE_SHMEDIA
2534 ret->datalabel_got.refcount = ret->root.got.refcount;
2536 ret->funcdesc.refcount = 0;
2537 ret->abs_funcdesc_refcount = 0;
2538 ret->got_type = GOT_UNKNOWN;
2541 return (struct bfd_hash_entry *) ret;
2544 /* Create an sh ELF linker hash table. */
2546 static struct bfd_link_hash_table *
2547 sh_elf_link_hash_table_create (bfd *abfd)
2549 struct elf_sh_link_hash_table *ret;
2550 bfd_size_type amt = sizeof (struct elf_sh_link_hash_table);
2552 ret = (struct elf_sh_link_hash_table *) bfd_zmalloc (amt);
2553 if (ret == (struct elf_sh_link_hash_table *) NULL)
2556 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
2557 sh_elf_link_hash_newfunc,
2558 sizeof (struct elf_sh_link_hash_entry),
2565 ret->vxworks_p = vxworks_object_p (abfd);
2566 ret->fdpic_p = fdpic_object_p (abfd);
2568 return &ret->root.root;
2572 sh_elf_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
2573 struct bfd_link_info *info, asection *p)
2575 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
2577 /* Non-FDPIC binaries do not need dynamic symbols for sections. */
2581 /* We need dynamic symbols for every section, since segments can
2582 relocate independently. */
2583 switch (elf_section_data (p)->this_hdr.sh_type)
2587 /* If sh_type is yet undecided, assume it could be
2588 SHT_PROGBITS/SHT_NOBITS. */
2592 /* There shouldn't be section relative relocations
2593 against any other section. */
2599 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2600 shortcuts to them in our hash table. */
2603 create_got_section (bfd *dynobj, struct bfd_link_info *info)
2605 struct elf_sh_link_hash_table *htab;
2607 if (! _bfd_elf_create_got_section (dynobj, info))
2610 htab = sh_elf_hash_table (info);
2614 htab->sgot = bfd_get_linker_section (dynobj, ".got");
2615 htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
2616 htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
2617 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
2620 htab->sfuncdesc = bfd_make_section_anyway_with_flags (dynobj, ".got.funcdesc",
2621 (SEC_ALLOC | SEC_LOAD
2624 | SEC_LINKER_CREATED));
2625 if (htab->sfuncdesc == NULL
2626 || ! bfd_set_section_alignment (dynobj, htab->sfuncdesc, 2))
2629 htab->srelfuncdesc = bfd_make_section_anyway_with_flags (dynobj,
2630 ".rela.got.funcdesc",
2631 (SEC_ALLOC | SEC_LOAD
2634 | SEC_LINKER_CREATED
2636 if (htab->srelfuncdesc == NULL
2637 || ! bfd_set_section_alignment (dynobj, htab->srelfuncdesc, 2))
2640 /* Also create .rofixup. */
2641 htab->srofixup = bfd_make_section_anyway_with_flags (dynobj, ".rofixup",
2642 (SEC_ALLOC | SEC_LOAD
2645 | SEC_LINKER_CREATED
2647 if (htab->srofixup == NULL
2648 || ! bfd_set_section_alignment (dynobj, htab->srofixup, 2))
2654 /* Create dynamic sections when linking against a dynamic object. */
2657 sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
2659 struct elf_sh_link_hash_table *htab;
2660 flagword flags, pltflags;
2662 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2665 switch (bed->s->arch_size)
2676 bfd_set_error (bfd_error_bad_value);
2680 htab = sh_elf_hash_table (info);
2684 if (htab->root.dynamic_sections_created)
2687 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2688 .rel[a].bss sections. */
2690 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
2691 | SEC_LINKER_CREATED);
2694 pltflags |= SEC_CODE;
2695 if (bed->plt_not_loaded)
2696 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
2697 if (bed->plt_readonly)
2698 pltflags |= SEC_READONLY;
2700 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
2703 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
2706 if (bed->want_plt_sym)
2708 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2710 struct elf_link_hash_entry *h;
2711 struct bfd_link_hash_entry *bh = NULL;
2713 if (! (_bfd_generic_link_add_one_symbol
2714 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
2715 (bfd_vma) 0, (const char *) NULL, FALSE,
2716 get_elf_backend_data (abfd)->collect, &bh)))
2719 h = (struct elf_link_hash_entry *) bh;
2721 h->type = STT_OBJECT;
2722 htab->root.hplt = h;
2725 && ! bfd_elf_link_record_dynamic_symbol (info, h))
2729 s = bfd_make_section_anyway_with_flags (abfd,
2730 bed->default_use_rela_p
2731 ? ".rela.plt" : ".rel.plt",
2732 flags | SEC_READONLY);
2735 || ! bfd_set_section_alignment (abfd, s, ptralign))
2738 if (htab->sgot == NULL
2739 && !create_got_section (abfd, info))
2742 if (bed->want_dynbss)
2744 /* The .dynbss section is a place to put symbols which are defined
2745 by dynamic objects, are referenced by regular objects, and are
2746 not functions. We must allocate space for them in the process
2747 image and use a R_*_COPY reloc to tell the dynamic linker to
2748 initialize them at run time. The linker script puts the .dynbss
2749 section into the .bss section of the final image. */
2750 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
2751 SEC_ALLOC | SEC_LINKER_CREATED);
2756 /* The .rel[a].bss section holds copy relocs. This section is not
2757 normally needed. We need to create it here, though, so that the
2758 linker will map it to an output section. We can't just create it
2759 only if we need it, because we will not know whether we need it
2760 until we have seen all the input files, and the first time the
2761 main linker code calls BFD after examining all the input files
2762 (size_dynamic_sections) the input sections have already been
2763 mapped to the output sections. If the section turns out not to
2764 be needed, we can discard it later. We will never need this
2765 section when generating a shared object, since they do not use
2769 s = bfd_make_section_anyway_with_flags (abfd,
2770 (bed->default_use_rela_p
2771 ? ".rela.bss" : ".rel.bss"),
2772 flags | SEC_READONLY);
2775 || ! bfd_set_section_alignment (abfd, s, ptralign))
2780 if (htab->vxworks_p)
2782 if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
2789 /* Adjust a symbol defined by a dynamic object and referenced by a
2790 regular object. The current definition is in some section of the
2791 dynamic object, but we're not including those sections. We have to
2792 change the definition to something the rest of the link can
2796 sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2797 struct elf_link_hash_entry *h)
2799 struct elf_sh_link_hash_table *htab;
2800 struct elf_sh_link_hash_entry *eh;
2801 struct elf_sh_dyn_relocs *p;
2804 htab = sh_elf_hash_table (info);
2808 /* Make sure we know what is going on here. */
2809 BFD_ASSERT (htab->root.dynobj != NULL
2811 || h->u.weakdef != NULL
2814 && !h->def_regular)));
2816 /* If this is a function, put it in the procedure linkage table. We
2817 will fill in the contents of the procedure linkage table later,
2818 when we know the address of the .got section. */
2819 if (h->type == STT_FUNC
2822 if (h->plt.refcount <= 0
2823 || SYMBOL_CALLS_LOCAL (info, h)
2824 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2825 && h->root.type == bfd_link_hash_undefweak))
2827 /* This case can occur if we saw a PLT reloc in an input
2828 file, but the symbol was never referred to by a dynamic
2829 object. In such a case, we don't actually need to build
2830 a procedure linkage table, and we can just do a REL32
2832 h->plt.offset = (bfd_vma) -1;
2839 h->plt.offset = (bfd_vma) -1;
2841 /* If this is a weak symbol, and there is a real definition, the
2842 processor independent code will have arranged for us to see the
2843 real definition first, and we can just use the same value. */
2844 if (h->u.weakdef != NULL)
2846 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2847 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2848 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2849 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2850 if (info->nocopyreloc)
2851 h->non_got_ref = h->u.weakdef->non_got_ref;
2855 /* This is a reference to a symbol defined by a dynamic object which
2856 is not a function. */
2858 /* If we are creating a shared library, we must presume that the
2859 only references to the symbol are via the global offset table.
2860 For such cases we need not do anything here; the relocations will
2861 be handled correctly by relocate_section. */
2865 /* If there are no references to this symbol that do not use the
2866 GOT, we don't need to generate a copy reloc. */
2867 if (!h->non_got_ref)
2870 /* If -z nocopyreloc was given, we won't generate them either. */
2871 if (info->nocopyreloc)
2877 eh = (struct elf_sh_link_hash_entry *) h;
2878 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2880 s = p->sec->output_section;
2881 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
2885 /* If we didn't find any dynamic relocs in sections which needs the
2886 copy reloc, then we'll be keeping the dynamic relocs and avoiding
2894 /* We must allocate the symbol in our .dynbss section, which will
2895 become part of the .bss section of the executable. There will be
2896 an entry for this symbol in the .dynsym section. The dynamic
2897 object will contain position independent code, so all references
2898 from the dynamic object to this symbol will go through the global
2899 offset table. The dynamic linker will use the .dynsym entry to
2900 determine the address it must put in the global offset table, so
2901 both the dynamic object and the regular object will refer to the
2902 same memory location for the variable. */
2905 BFD_ASSERT (s != NULL);
2907 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2908 copy the initial value out of the dynamic object and into the
2909 runtime process image. We need to remember the offset into the
2910 .rela.bss section we are going to use. */
2911 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2915 srel = htab->srelbss;
2916 BFD_ASSERT (srel != NULL);
2917 srel->size += sizeof (Elf32_External_Rela);
2921 return _bfd_elf_adjust_dynamic_copy (h, s);
2924 /* Allocate space in .plt, .got and associated reloc sections for
2928 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2930 struct bfd_link_info *info;
2931 struct elf_sh_link_hash_table *htab;
2932 struct elf_sh_link_hash_entry *eh;
2933 struct elf_sh_dyn_relocs *p;
2935 if (h->root.type == bfd_link_hash_indirect)
2938 info = (struct bfd_link_info *) inf;
2939 htab = sh_elf_hash_table (info);
2943 eh = (struct elf_sh_link_hash_entry *) h;
2944 if ((h->got.refcount > 0
2946 && eh->gotplt_refcount > 0)
2948 /* The symbol has been forced local, or we have some direct got refs,
2949 so treat all the gotplt refs as got refs. */
2950 h->got.refcount += eh->gotplt_refcount;
2951 if (h->plt.refcount >= eh->gotplt_refcount)
2952 h->plt.refcount -= eh->gotplt_refcount;
2955 if (htab->root.dynamic_sections_created
2956 && h->plt.refcount > 0
2957 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2958 || h->root.type != bfd_link_hash_undefweak))
2960 /* Make sure this symbol is output as a dynamic symbol.
2961 Undefined weak syms won't yet be marked as dynamic. */
2962 if (h->dynindx == -1
2963 && !h->forced_local)
2965 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2970 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
2972 asection *s = htab->splt;
2973 const struct elf_sh_plt_info *plt_info;
2975 /* If this is the first .plt entry, make room for the special
2978 s->size += htab->plt_info->plt0_entry_size;
2980 h->plt.offset = s->size;
2982 /* If this symbol is not defined in a regular file, and we are
2983 not generating a shared library, then set the symbol to this
2984 location in the .plt. This is required to make function
2985 pointers compare as equal between the normal executable and
2986 the shared library. Skip this for FDPIC, since the
2987 function's address will be the address of the canonical
2988 function descriptor. */
2989 if (!htab->fdpic_p && !info->shared && !h->def_regular)
2991 h->root.u.def.section = s;
2992 h->root.u.def.value = h->plt.offset;
2995 /* Make room for this entry. */
2996 plt_info = htab->plt_info;
2997 if (plt_info->short_plt != NULL
2998 && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT))
2999 plt_info = plt_info->short_plt;
3000 s->size += plt_info->symbol_entry_size;
3002 /* We also need to make an entry in the .got.plt section, which
3003 will be placed in the .got section by the linker script. */
3005 htab->sgotplt->size += 4;
3007 htab->sgotplt->size += 8;
3009 /* We also need to make an entry in the .rel.plt section. */
3010 htab->srelplt->size += sizeof (Elf32_External_Rela);
3012 if (htab->vxworks_p && !info->shared)
3014 /* VxWorks executables have a second set of relocations
3015 for each PLT entry. They go in a separate relocation
3016 section, which is processed by the kernel loader. */
3018 /* There is a relocation for the initial PLT entry:
3019 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
3020 if (h->plt.offset == htab->plt_info->plt0_entry_size)
3021 htab->srelplt2->size += sizeof (Elf32_External_Rela);
3023 /* There are two extra relocations for each subsequent
3024 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
3025 and an R_SH_DIR32 relocation for the PLT entry. */
3026 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2;
3031 h->plt.offset = (bfd_vma) -1;
3037 h->plt.offset = (bfd_vma) -1;
3041 if (h->got.refcount > 0)
3045 enum got_type got_type = sh_elf_hash_entry (h)->got_type;
3047 /* Make sure this symbol is output as a dynamic symbol.
3048 Undefined weak syms won't yet be marked as dynamic. */
3049 if (h->dynindx == -1
3050 && !h->forced_local)
3052 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3057 h->got.offset = s->size;
3059 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
3060 if (got_type == GOT_TLS_GD)
3062 dyn = htab->root.dynamic_sections_created;
3065 /* No dynamic relocations required. */
3066 if (htab->fdpic_p && !info->shared
3067 && h->root.type != bfd_link_hash_undefweak
3068 && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC))
3069 htab->srofixup->size += 4;
3071 /* No dynamic relocations required when IE->LE conversion happens. */
3072 else if (got_type == GOT_TLS_IE && !h->def_dynamic && !info->shared)
3074 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
3075 R_SH_TLS_GD needs one if local symbol and two if global. */
3076 else if ((got_type == GOT_TLS_GD && h->dynindx == -1)
3077 || got_type == GOT_TLS_IE)
3078 htab->srelgot->size += sizeof (Elf32_External_Rela);
3079 else if (got_type == GOT_TLS_GD)
3080 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
3081 else if (got_type == GOT_FUNCDESC)
3083 if (!info->shared && SYMBOL_FUNCDESC_LOCAL (info, h))
3084 htab->srofixup->size += 4;
3086 htab->srelgot->size += sizeof (Elf32_External_Rela);
3088 else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3089 || h->root.type != bfd_link_hash_undefweak)
3091 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)))
3092 htab->srelgot->size += sizeof (Elf32_External_Rela);
3093 else if (htab->fdpic_p && !info->shared && got_type == GOT_NORMAL
3094 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3095 || h->root.type != bfd_link_hash_undefweak))
3096 htab->srofixup->size += 4;
3099 h->got.offset = (bfd_vma) -1;
3101 #ifdef INCLUDE_SHMEDIA
3102 if (eh->datalabel_got.refcount > 0)
3107 /* Make sure this symbol is output as a dynamic symbol.
3108 Undefined weak syms won't yet be marked as dynamic. */
3109 if (h->dynindx == -1
3110 && !h->forced_local)
3112 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3117 eh->datalabel_got.offset = s->size;
3119 dyn = htab->root.dynamic_sections_created;
3120 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
3121 htab->srelgot->size += sizeof (Elf32_External_Rela);
3124 eh->datalabel_got.offset = (bfd_vma) -1;
3127 /* Allocate space for any dynamic relocations to function
3128 descriptors, canonical or otherwise. We need to relocate the
3129 reference unless it resolves to zero, which only happens for
3130 undefined weak symbols (either non-default visibility, or when
3131 static linking). Any GOT slot is accounted for elsewhere. */
3132 if (eh->abs_funcdesc_refcount > 0
3133 && (h->root.type != bfd_link_hash_undefweak
3134 || (htab->root.dynamic_sections_created
3135 && ! SYMBOL_CALLS_LOCAL (info, h))))
3137 if (!info->shared && SYMBOL_FUNCDESC_LOCAL (info, h))
3138 htab->srofixup->size += eh->abs_funcdesc_refcount * 4;
3141 += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela);
3144 /* We must allocate a function descriptor if there are references to
3145 a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
3146 the dynamic linker isn't going to allocate it. None of this
3147 applies if we already created one in .got.plt, but if the
3148 canonical function descriptor can be in this object, there
3149 won't be a PLT entry at all. */
3150 if ((eh->funcdesc.refcount > 0
3151 || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC))
3152 && h->root.type != bfd_link_hash_undefweak
3153 && SYMBOL_FUNCDESC_LOCAL (info, h))
3155 /* Make room for this function descriptor. */
3156 eh->funcdesc.offset = htab->sfuncdesc->size;
3157 htab->sfuncdesc->size += 8;
3159 /* We will need a relocation or two fixups to initialize the
3160 function descriptor, so allocate those too. */
3161 if (!info->shared && SYMBOL_CALLS_LOCAL (info, h))
3162 htab->srofixup->size += 8;
3164 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
3167 if (eh->dyn_relocs == NULL)
3170 /* In the shared -Bsymbolic case, discard space allocated for
3171 dynamic pc-relative relocs against symbols which turn out to be
3172 defined in regular objects. For the normal shared case, discard
3173 space for pc-relative relocs that have become local due to symbol
3174 visibility changes. */
3178 if (SYMBOL_CALLS_LOCAL (info, h))
3180 struct elf_sh_dyn_relocs **pp;
3182 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3184 p->count -= p->pc_count;
3193 if (htab->vxworks_p)
3195 struct elf_sh_dyn_relocs **pp;
3197 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
3199 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
3206 /* Also discard relocs on undefined weak syms with non-default
3208 if (eh->dyn_relocs != NULL
3209 && h->root.type == bfd_link_hash_undefweak)
3211 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
3212 eh->dyn_relocs = NULL;
3214 /* Make sure undefined weak symbols are output as a dynamic
3216 else if (h->dynindx == -1
3217 && !h->forced_local)
3219 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3226 /* For the non-shared case, discard space for relocs against
3227 symbols which turn out to need copy relocs or are not
3233 || (htab->root.dynamic_sections_created
3234 && (h->root.type == bfd_link_hash_undefweak
3235 || h->root.type == bfd_link_hash_undefined))))
3237 /* Make sure this symbol is output as a dynamic symbol.
3238 Undefined weak syms won't yet be marked as dynamic. */
3239 if (h->dynindx == -1
3240 && !h->forced_local)
3242 if (! bfd_elf_link_record_dynamic_symbol (info, h))
3246 /* If that succeeded, we know we'll be keeping all the
3248 if (h->dynindx != -1)
3252 eh->dyn_relocs = NULL;
3257 /* Finally, allocate space. */
3258 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3260 asection *sreloc = elf_section_data (p->sec)->sreloc;
3261 sreloc->size += p->count * sizeof (Elf32_External_Rela);
3263 /* If we need relocations, we do not need fixups. */
3264 if (htab->fdpic_p && !info->shared)
3265 htab->srofixup->size -= 4 * (p->count - p->pc_count);
3271 /* Find any dynamic relocs that apply to read-only sections. */
3274 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
3276 struct elf_sh_link_hash_entry *eh;
3277 struct elf_sh_dyn_relocs *p;
3279 eh = (struct elf_sh_link_hash_entry *) h;
3280 for (p = eh->dyn_relocs; p != NULL; p = p->next)
3282 asection *s = p->sec->output_section;
3284 if (s != NULL && (s->flags & SEC_READONLY) != 0)
3286 struct bfd_link_info *info = (struct bfd_link_info *) inf;
3288 info->flags |= DF_TEXTREL;
3290 /* Not an error, just cut short the traversal. */
3297 /* This function is called after all the input files have been read,
3298 and the input sections have been assigned to output sections.
3299 It's a convenient place to determine the PLT style. */
3302 sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
3304 sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd, info->shared);
3306 if (sh_elf_hash_table (info)->fdpic_p && !info->relocatable)
3308 struct elf_link_hash_entry *h;
3310 /* Force a PT_GNU_STACK segment to be created. */
3311 if (! elf_tdata (output_bfd)->stack_flags)
3312 elf_tdata (output_bfd)->stack_flags = PF_R | PF_W | PF_X;
3314 /* Define __stacksize if it's not defined yet. */
3315 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3316 FALSE, FALSE, FALSE);
3317 if (! h || h->root.type != bfd_link_hash_defined
3318 || h->type != STT_OBJECT
3321 struct bfd_link_hash_entry *bh = NULL;
3323 if (!(_bfd_generic_link_add_one_symbol
3324 (info, output_bfd, "__stacksize",
3325 BSF_GLOBAL, bfd_abs_section_ptr, DEFAULT_STACK_SIZE,
3326 (const char *) NULL, FALSE,
3327 get_elf_backend_data (output_bfd)->collect, &bh)))
3330 h = (struct elf_link_hash_entry *) bh;
3332 h->type = STT_OBJECT;
3338 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
3341 sh_elf_modify_program_headers (bfd *output_bfd, struct bfd_link_info *info)
3343 struct elf_obj_tdata *tdata = elf_tdata (output_bfd);
3344 struct elf_segment_map *m;
3345 Elf_Internal_Phdr *p;
3347 /* objcopy and strip preserve what's already there using
3348 sh_elf_copy_private_bfd_data (). */
3352 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
3353 if (m->p_type == PT_GNU_STACK)
3358 struct elf_link_hash_entry *h;
3360 /* Obtain the pointer to the __stacksize symbol. */
3361 h = elf_link_hash_lookup (elf_hash_table (info), "__stacksize",
3362 FALSE, FALSE, FALSE);
3365 while (h->root.type == bfd_link_hash_indirect
3366 || h->root.type == bfd_link_hash_warning)
3367 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3368 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
3371 /* Set the header p_memsz from the symbol value. We
3372 intentionally ignore the symbol section. */
3373 if (h && h->root.type == bfd_link_hash_defined)
3374 p->p_memsz = h->root.u.def.value;
3376 p->p_memsz = DEFAULT_STACK_SIZE;
3386 /* Set the sizes of the dynamic sections. */
3389 sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3390 struct bfd_link_info *info)
3392 struct elf_sh_link_hash_table *htab;
3398 htab = sh_elf_hash_table (info);
3402 dynobj = htab->root.dynobj;
3403 BFD_ASSERT (dynobj != NULL);
3405 if (htab->root.dynamic_sections_created)
3407 /* Set the contents of the .interp section to the interpreter. */
3408 if (info->executable)
3410 s = bfd_get_linker_section (dynobj, ".interp");
3411 BFD_ASSERT (s != NULL);
3412 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
3413 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
3417 /* Set up .got offsets for local syms, and space for local dynamic
3419 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
3421 bfd_signed_vma *local_got;
3422 bfd_signed_vma *end_local_got;
3423 union gotref *local_funcdesc, *end_local_funcdesc;
3424 char *local_got_type;
3425 bfd_size_type locsymcount;
3426 Elf_Internal_Shdr *symtab_hdr;
3429 if (! is_sh_elf (ibfd))
3432 for (s = ibfd->sections; s != NULL; s = s->next)
3434 struct elf_sh_dyn_relocs *p;
3436 for (p = ((struct elf_sh_dyn_relocs *)
3437 elf_section_data (s)->local_dynrel);
3441 if (! bfd_is_abs_section (p->sec)
3442 && bfd_is_abs_section (p->sec->output_section))
3444 /* Input section has been discarded, either because
3445 it is a copy of a linkonce section or due to
3446 linker script /DISCARD/, so we'll be discarding
3449 else if (htab->vxworks_p
3450 && strcmp (p->sec->output_section->name,
3453 /* Relocations in vxworks .tls_vars sections are
3454 handled specially by the loader. */
3456 else if (p->count != 0)
3458 srel = elf_section_data (p->sec)->sreloc;
3459 srel->size += p->count * sizeof (Elf32_External_Rela);
3460 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
3461 info->flags |= DF_TEXTREL;
3463 /* If we need relocations, we do not need fixups. */
3464 if (htab->fdpic_p && !info->shared)
3465 htab->srofixup->size -= 4 * (p->count - p->pc_count);
3470 symtab_hdr = &elf_symtab_hdr (ibfd);
3471 locsymcount = symtab_hdr->sh_info;
3472 #ifdef INCLUDE_SHMEDIA
3473 /* Count datalabel local GOT. */
3477 srel = htab->srelgot;
3479 local_got = elf_local_got_refcounts (ibfd);
3482 end_local_got = local_got + locsymcount;
3483 local_got_type = sh_elf_local_got_type (ibfd);
3484 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3485 for (; local_got < end_local_got; ++local_got)
3489 *local_got = s->size;
3491 if (*local_got_type == GOT_TLS_GD)
3494 srel->size += sizeof (Elf32_External_Rela);
3496 htab->srofixup->size += 4;
3498 if (*local_got_type == GOT_FUNCDESC)
3500 if (local_funcdesc == NULL)
3504 size = locsymcount * sizeof (union gotref);
3505 local_funcdesc = (union gotref *) bfd_zalloc (ibfd,
3507 if (local_funcdesc == NULL)
3509 sh_elf_local_funcdesc (ibfd) = local_funcdesc;
3510 local_funcdesc += (local_got
3511 - elf_local_got_refcounts (ibfd));
3513 local_funcdesc->refcount++;
3518 *local_got = (bfd_vma) -1;
3523 local_funcdesc = sh_elf_local_funcdesc (ibfd);
3526 end_local_funcdesc = local_funcdesc + locsymcount;
3528 for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc)
3530 if (local_funcdesc->refcount > 0)
3532 local_funcdesc->offset = htab->sfuncdesc->size;
3533 htab->sfuncdesc->size += 8;
3535 htab->srofixup->size += 8;
3537 htab->srelfuncdesc->size += sizeof (Elf32_External_Rela);
3540 local_funcdesc->offset = MINUS_ONE;
3546 if (htab->tls_ldm_got.refcount > 0)
3548 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3550 htab->tls_ldm_got.offset = htab->sgot->size;
3551 htab->sgot->size += 8;
3552 htab->srelgot->size += sizeof (Elf32_External_Rela);
3555 htab->tls_ldm_got.offset = -1;
3557 /* Only the reserved entries should be present. For FDPIC, they go at
3558 the end of .got.plt. */
3561 BFD_ASSERT (htab->sgotplt && htab->sgotplt->size == 12);
3562 htab->sgotplt->size = 0;
3565 /* Allocate global sym .plt and .got entries, and space for global
3566 sym dynamic relocs. */
3567 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
3569 /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3570 end of the FDPIC .got.plt. */
3573 htab->root.hgot->root.u.def.value = htab->sgotplt->size;
3574 htab->sgotplt->size += 12;
3577 /* At the very end of the .rofixup section is a pointer to the GOT. */
3578 if (htab->fdpic_p && htab->srofixup != NULL)
3579 htab->srofixup->size += 4;
3581 /* We now have determined the sizes of the various dynamic sections.
3582 Allocate memory for them. */
3584 for (s = dynobj->sections; s != NULL; s = s->next)
3586 if ((s->flags & SEC_LINKER_CREATED) == 0)
3591 || s == htab->sgotplt
3592 || s == htab->sfuncdesc
3593 || s == htab->srofixup
3594 || s == htab->sdynbss)
3596 /* Strip this section if we don't need it; see the
3599 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
3601 if (s->size != 0 && s != htab->srelplt && s != htab->srelplt2)
3604 /* We use the reloc_count field as a counter if we need
3605 to copy relocs into the output file. */
3610 /* It's not one of our sections, so don't allocate space. */
3616 /* If we don't need this section, strip it from the
3617 output file. This is mostly to handle .rela.bss and
3618 .rela.plt. We must create both sections in
3619 create_dynamic_sections, because they must be created
3620 before the linker maps input sections to output
3621 sections. The linker does that before
3622 adjust_dynamic_symbol is called, and it is that
3623 function which decides whether anything needs to go
3624 into these sections. */
3626 s->flags |= SEC_EXCLUDE;
3630 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3633 /* Allocate memory for the section contents. We use bfd_zalloc
3634 here in case unused entries are not reclaimed before the
3635 section's contents are written out. This should not happen,
3636 but this way if it does, we get a R_SH_NONE reloc instead
3638 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
3639 if (s->contents == NULL)
3643 if (htab->root.dynamic_sections_created)
3645 /* Add some entries to the .dynamic section. We fill in the
3646 values later, in sh_elf_finish_dynamic_sections, but we
3647 must add the entries now so that we get the correct size for
3648 the .dynamic section. The DT_DEBUG entry is filled in by the
3649 dynamic linker and used by the debugger. */
3650 #define add_dynamic_entry(TAG, VAL) \
3651 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3653 if (info->executable)
3655 if (! add_dynamic_entry (DT_DEBUG, 0))
3659 if (htab->splt->size != 0)
3661 if (! add_dynamic_entry (DT_PLTGOT, 0)
3662 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
3663 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
3664 || ! add_dynamic_entry (DT_JMPREL, 0))
3667 else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC)
3668 && htab->sgot->size != 0)
3670 if (! add_dynamic_entry (DT_PLTGOT, 0))
3676 if (! add_dynamic_entry (DT_RELA, 0)
3677 || ! add_dynamic_entry (DT_RELASZ, 0)
3678 || ! add_dynamic_entry (DT_RELAENT,
3679 sizeof (Elf32_External_Rela)))
3682 /* If any dynamic relocs apply to a read-only section,
3683 then we need a DT_TEXTREL entry. */
3684 if ((info->flags & DF_TEXTREL) == 0)
3685 elf_link_hash_traverse (&htab->root, readonly_dynrelocs, info);
3687 if ((info->flags & DF_TEXTREL) != 0)
3689 if (! add_dynamic_entry (DT_TEXTREL, 0))
3694 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
3697 #undef add_dynamic_entry
3702 /* Add a dynamic relocation to the SRELOC section. */
3704 inline static bfd_vma
3705 sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
3706 int reloc_type, long dynindx, bfd_vma addend)
3708 Elf_Internal_Rela outrel;
3709 bfd_vma reloc_offset;
3711 outrel.r_offset = offset;
3712 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
3713 outrel.r_addend = addend;
3715 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela);
3716 BFD_ASSERT (reloc_offset < sreloc->size);
3717 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
3718 sreloc->contents + reloc_offset);
3719 sreloc->reloc_count++;
3721 return reloc_offset;
3724 /* Add an FDPIC read-only fixup. */
3727 sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset)
3729 bfd_vma fixup_offset;
3731 fixup_offset = srofixup->reloc_count++ * 4;
3732 BFD_ASSERT (fixup_offset < srofixup->size);
3733 bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset);
3736 /* Return the offset of the generated .got section from the
3737 _GLOBAL_OFFSET_TABLE_ symbol. */
3739 static bfd_signed_vma
3740 sh_elf_got_offset (struct elf_sh_link_hash_table *htab)
3742 return (htab->sgot->output_offset - htab->sgotplt->output_offset
3743 - htab->root.hgot->root.u.def.value);
3746 /* Find the segment number in which OSEC, and output section, is
3750 sh_elf_osec_to_segment (bfd *output_bfd, asection *osec)
3752 Elf_Internal_Phdr *p = NULL;
3754 if (output_bfd->xvec->flavour == bfd_target_elf_flavour)
3755 p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
3757 /* FIXME: Nothing ever says what this index is relative to. The kernel
3758 supplies data in terms of the number of load segments but this is
3759 a phdr index and the first phdr may not be a load segment. */
3760 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
3764 sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec)
3766 unsigned seg = sh_elf_osec_to_segment (output_bfd, osec);
3768 return (seg != (unsigned) -1
3769 && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W));
3772 /* Generate the initial contents of a local function descriptor, along
3773 with any relocations or fixups required. */
3775 sh_elf_initialize_funcdesc (bfd *output_bfd,
3776 struct bfd_link_info *info,
3777 struct elf_link_hash_entry *h,
3782 struct elf_sh_link_hash_table *htab;
3786 htab = sh_elf_hash_table (info);
3788 /* FIXME: The ABI says that the offset to the function goes in the
3789 descriptor, along with the segment index. We're RELA, so it could
3790 go in the reloc instead... */
3792 if (h != NULL && SYMBOL_CALLS_LOCAL (info, h))
3794 section = h->root.u.def.section;
3795 value = h->root.u.def.value;
3798 if (h == NULL || SYMBOL_CALLS_LOCAL (info, h))
3800 dynindx = elf_section_data (section->output_section)->dynindx;
3801 addr = value + section->output_offset;
3802 seg = sh_elf_osec_to_segment (output_bfd, section->output_section);
3806 BFD_ASSERT (h->dynindx != -1);
3807 dynindx = h->dynindx;
3811 if (!info->shared && SYMBOL_CALLS_LOCAL (info, h))
3813 if (h == NULL || h->root.type != bfd_link_hash_undefweak)
3815 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3817 + htab->sfuncdesc->output_section->vma
3818 + htab->sfuncdesc->output_offset);
3819 sh_elf_add_rofixup (output_bfd, htab->srofixup,
3821 + htab->sfuncdesc->output_section->vma
3822 + htab->sfuncdesc->output_offset);
3825 /* There are no dynamic relocations so fill in the final
3826 address and gp value (barring fixups). */
3827 addr += section->output_section->vma;
3828 seg = htab->root.hgot->root.u.def.value
3829 + htab->root.hgot->root.u.def.section->output_section->vma
3830 + htab->root.hgot->root.u.def.section->output_offset;
3833 sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc,
3835 + htab->sfuncdesc->output_section->vma
3836 + htab->sfuncdesc->output_offset,
3837 R_SH_FUNCDESC_VALUE, dynindx, 0);
3839 bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset);
3840 bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4);
3845 /* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3846 VALUE is the field's value. Return bfd_reloc_ok if successful or an error
3849 static bfd_reloc_status_type
3850 install_movi20_field (bfd *output_bfd, unsigned long relocation,
3851 bfd *input_bfd, asection *input_section,
3852 bfd_byte *contents, bfd_vma offset)
3854 unsigned long cur_val;
3856 bfd_reloc_status_type r;
3858 if (offset > bfd_get_section_limit (input_bfd, input_section))
3859 return bfd_reloc_outofrange;
3861 r = bfd_check_overflow (complain_overflow_signed, 20, 0,
3862 bfd_arch_bits_per_address (input_bfd), relocation);
3863 if (r != bfd_reloc_ok)
3866 addr = contents + offset;
3867 cur_val = bfd_get_16 (output_bfd, addr);
3868 bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr);
3869 bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2);
3871 return bfd_reloc_ok;
3874 /* Relocate an SH ELF section. */
3877 sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3878 bfd *input_bfd, asection *input_section,
3879 bfd_byte *contents, Elf_Internal_Rela *relocs,
3880 Elf_Internal_Sym *local_syms,
3881 asection **local_sections)
3883 struct elf_sh_link_hash_table *htab;
3884 Elf_Internal_Shdr *symtab_hdr;
3885 struct elf_link_hash_entry **sym_hashes;
3886 Elf_Internal_Rela *rel, *relend;
3888 bfd_vma *local_got_offsets;
3889 asection *sgot = NULL;
3890 asection *sgotplt = NULL;
3891 asection *splt = NULL;
3892 asection *sreloc = NULL;
3893 asection *srelgot = NULL;
3894 bfd_boolean is_vxworks_tls;
3895 unsigned isec_segment, got_segment, plt_segment, check_segment[2];
3896 bfd_boolean fdpic_p = FALSE;
3898 BFD_ASSERT (is_sh_elf (input_bfd));
3900 htab = sh_elf_hash_table (info);
3903 dynobj = htab->root.dynobj;
3905 sgotplt = htab->sgotplt;
3907 fdpic_p = htab->fdpic_p;
3909 symtab_hdr = &elf_symtab_hdr (input_bfd);
3910 sym_hashes = elf_sym_hashes (input_bfd);
3911 local_got_offsets = elf_local_got_offsets (input_bfd);
3913 isec_segment = sh_elf_osec_to_segment (output_bfd,
3914 input_section->output_section);
3915 if (fdpic_p && sgot)
3916 got_segment = sh_elf_osec_to_segment (output_bfd,
3917 sgot->output_section);
3920 if (fdpic_p && splt)
3921 plt_segment = sh_elf_osec_to_segment (output_bfd,
3922 splt->output_section);
3926 /* We have to handle relocations in vxworks .tls_vars sections
3927 specially, because the dynamic loader is 'weird'. */
3928 is_vxworks_tls = (htab && htab->vxworks_p && info->shared
3929 && !strcmp (input_section->output_section->name,
3933 relend = relocs + input_section->reloc_count;
3934 for (; rel < relend; rel++)
3937 reloc_howto_type *howto;
3938 unsigned long r_symndx;
3939 Elf_Internal_Sym *sym;
3941 struct elf_link_hash_entry *h;
3943 bfd_vma addend = (bfd_vma) 0;
3944 bfd_reloc_status_type r;
3945 int seen_stt_datalabel = 0;
3947 enum got_type got_type;
3948 const char *symname = NULL;
3950 r_symndx = ELF32_R_SYM (rel->r_info);
3952 r_type = ELF32_R_TYPE (rel->r_info);
3954 /* Many of the relocs are only used for relaxing, and are
3955 handled entirely by the relaxation code. */
3956 if (r_type >= (int) R_SH_GNU_VTINHERIT
3957 && r_type <= (int) R_SH_LABEL)
3959 if (r_type == (int) R_SH_NONE)
3963 || r_type >= R_SH_max
3964 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC
3965 && r_type <= (int) R_SH_LAST_INVALID_RELOC)
3966 || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2
3967 && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)
3968 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3
3969 && r_type <= (int) R_SH_LAST_INVALID_RELOC_3)
3970 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4
3971 && r_type <= (int) R_SH_LAST_INVALID_RELOC_4)
3972 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5
3973 && r_type <= (int) R_SH_LAST_INVALID_RELOC_5)
3974 || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6
3975 && r_type <= (int) R_SH_LAST_INVALID_RELOC_6))
3977 bfd_set_error (bfd_error_bad_value);
3981 howto = get_howto_table (output_bfd) + r_type;
3983 /* For relocs that aren't partial_inplace, we get the addend from
3985 if (! howto->partial_inplace)
3986 addend = rel->r_addend;
3991 check_segment[0] = -1;
3992 check_segment[1] = -1;
3993 if (r_symndx < symtab_hdr->sh_info)
3995 sym = local_syms + r_symndx;
3996 sec = local_sections[r_symndx];
3998 symname = bfd_elf_string_from_elf_section
3999 (input_bfd, symtab_hdr->sh_link, sym->st_name);
4000 if (symname == NULL || *symname == '\0')
4001 symname = bfd_section_name (input_bfd, sec);
4003 relocation = (sec->output_section->vma
4004 + sec->output_offset
4006 /* A local symbol never has STO_SH5_ISA32, so we don't need
4007 datalabel processing here. Make sure this does not change
4009 if ((sym->st_other & STO_SH5_ISA32) != 0)
4010 ((*info->callbacks->reloc_dangerous)
4012 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
4013 input_bfd, input_section, rel->r_offset));
4015 if (sec != NULL && discarded_section (sec))
4016 /* Handled below. */
4018 else if (info->relocatable)
4020 /* This is a relocatable link. We don't have to change
4021 anything, unless the reloc is against a section symbol,
4022 in which case we have to adjust according to where the
4023 section symbol winds up in the output section. */
4024 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4026 if (! howto->partial_inplace)
4028 /* For relocations with the addend in the
4029 relocation, we need just to update the addend.
4030 All real relocs are of type partial_inplace; this
4031 code is mostly for completeness. */
4032 rel->r_addend += sec->output_offset;
4037 /* Relocs of type partial_inplace need to pick up the
4038 contents in the contents and add the offset resulting
4039 from the changed location of the section symbol.
4040 Using _bfd_final_link_relocate (e.g. goto
4041 final_link_relocate) here would be wrong, because
4042 relocations marked pc_relative would get the current
4043 location subtracted, and we must only do that at the
4045 r = _bfd_relocate_contents (howto, input_bfd,
4048 contents + rel->r_offset);
4049 goto relocation_done;
4054 else if (! howto->partial_inplace)
4056 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
4057 addend = rel->r_addend;
4059 else if ((sec->flags & SEC_MERGE)
4060 && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
4064 if (howto->rightshift || howto->src_mask != 0xffffffff)
4066 (*_bfd_error_handler)
4067 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
4068 input_bfd, input_section,
4069 (long) rel->r_offset, howto->name);
4073 addend = bfd_get_32 (input_bfd, contents + rel->r_offset);
4076 _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend)
4078 addend += msec->output_section->vma + msec->output_offset;
4079 bfd_put_32 (input_bfd, addend, contents + rel->r_offset);
4085 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
4088 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4089 symname = h->root.root.string;
4090 while (h->root.type == bfd_link_hash_indirect
4091 || h->root.type == bfd_link_hash_warning)
4093 #ifdef INCLUDE_SHMEDIA
4094 /* If the reference passes a symbol marked with
4095 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
4097 seen_stt_datalabel |= h->type == STT_DATALABEL;
4099 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4101 if (h->root.type == bfd_link_hash_defined
4102 || h->root.type == bfd_link_hash_defweak)
4106 dyn = htab ? htab->root.dynamic_sections_created : FALSE;
4107 sec = h->root.u.def.section;
4108 /* In these cases, we don't need the relocation value.
4109 We check specially because in some obscure cases
4110 sec->output_section will be NULL. */
4111 if (r_type == R_SH_GOTPC
4112 || r_type == R_SH_GOTPC_LOW16
4113 || r_type == R_SH_GOTPC_MEDLOW16
4114 || r_type == R_SH_GOTPC_MEDHI16
4115 || r_type == R_SH_GOTPC_HI16
4116 || ((r_type == R_SH_PLT32
4117 || r_type == R_SH_PLT_LOW16
4118 || r_type == R_SH_PLT_MEDLOW16
4119 || r_type == R_SH_PLT_MEDHI16
4120 || r_type == R_SH_PLT_HI16)
4121 && h->plt.offset != (bfd_vma) -1)
4122 || ((r_type == R_SH_GOT32
4123 || r_type == R_SH_GOT20
4124 || r_type == R_SH_GOTFUNCDESC
4125 || r_type == R_SH_GOTFUNCDESC20
4126 || r_type == R_SH_GOTOFFFUNCDESC
4127 || r_type == R_SH_GOTOFFFUNCDESC20
4128 || r_type == R_SH_FUNCDESC
4129 || r_type == R_SH_GOT_LOW16
4130 || r_type == R_SH_GOT_MEDLOW16
4131 || r_type == R_SH_GOT_MEDHI16
4132 || r_type == R_SH_GOT_HI16)
4133 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
4135 || (! info->symbolic && h->dynindx != -1)
4136 || !h->def_regular))
4137 /* The cases above are those in which relocation is
4138 overwritten in the switch block below. The cases
4139 below are those in which we must defer relocation
4140 to run-time, because we can't resolve absolute
4141 addresses when creating a shared library. */
4143 && ((! info->symbolic && h->dynindx != -1)
4145 && ((r_type == R_SH_DIR32
4146 && !h->forced_local)
4147 || (r_type == R_SH_REL32
4148 && !SYMBOL_CALLS_LOCAL (info, h)))
4149 && ((input_section->flags & SEC_ALLOC) != 0
4150 /* DWARF will emit R_SH_DIR32 relocations in its
4151 sections against symbols defined externally
4152 in shared libraries. We can't do anything
4154 || ((input_section->flags & SEC_DEBUGGING) != 0
4155 && h->def_dynamic)))
4156 /* Dynamic relocs are not propagated for SEC_DEBUGGING
4157 sections because such sections are not SEC_ALLOC and
4158 thus ld.so will not process them. */
4159 || (sec->output_section == NULL
4160 && ((input_section->flags & SEC_DEBUGGING) != 0
4162 || (sec->output_section == NULL
4163 && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE
4164 || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD)))
4166 else if (sec->output_section != NULL)
4167 relocation = ((h->root.u.def.value
4168 + sec->output_section->vma
4169 + sec->output_offset)
4170 /* A STO_SH5_ISA32 causes a "bitor 1" to the
4171 symbol value, unless we've seen
4172 STT_DATALABEL on the way to it. */
4173 | ((h->other & STO_SH5_ISA32) != 0
4174 && ! seen_stt_datalabel));
4175 else if (!info->relocatable
4176 && (_bfd_elf_section_offset (output_bfd, info,
4181 (*_bfd_error_handler)
4182 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
4185 (long) rel->r_offset,
4187 h->root.root.string);
4191 else if (h->root.type == bfd_link_hash_undefweak)
4193 else if (info->unresolved_syms_in_objects == RM_IGNORE
4194 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
4196 else if (!info->relocatable)
4198 if (! info->callbacks->undefined_symbol
4199 (info, h->root.root.string, input_bfd,
4200 input_section, rel->r_offset,
4201 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
4202 || ELF_ST_VISIBILITY (h->other))))
4207 if (sec != NULL && discarded_section (sec))
4208 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
4209 rel, 1, relend, howto, 0, contents);
4211 if (info->relocatable)
4214 /* Check for inter-segment relocations in FDPIC files. Most
4215 relocations connect the relocation site to the location of
4216 the target symbol, but there are some exceptions below. */
4217 check_segment[0] = isec_segment;
4219 check_segment[1] = sh_elf_osec_to_segment (output_bfd,
4220 sec->output_section);
4222 check_segment[1] = -1;
4224 switch ((int) r_type)
4226 final_link_relocate:
4227 /* COFF relocs don't use the addend. The addend is used for
4228 R_SH_DIR32 to be compatible with other compilers. */
4229 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4230 contents, rel->r_offset,
4231 relocation, addend);
4235 goto final_link_relocate;
4240 /* If the reloc is against the start of this section, then
4241 the assembler has already taken care of it and the reloc
4242 is here only to assist in relaxing. If the reloc is not
4243 against the start of this section, then it's against an
4244 external symbol and we must deal with it ourselves. */
4245 if (input_section->output_section->vma + input_section->output_offset
4248 int disp = (relocation
4249 - input_section->output_section->vma
4250 - input_section->output_offset
4256 case R_SH_DIR8WPZ: mask = 1; break;
4257 case R_SH_DIR8WPL: mask = 3; break;
4258 default: mask = 0; break;
4262 ((*_bfd_error_handler)
4263 (_("%B: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
4264 input_section->owner,
4265 (unsigned long) rel->r_offset));
4266 bfd_set_error (bfd_error_bad_value);
4270 goto final_link_relocate;
4276 #ifdef INCLUDE_SHMEDIA
4277 if (shmedia_prepare_reloc (info, input_bfd, input_section,
4278 contents, rel, &relocation))
4279 goto final_link_relocate;
4281 bfd_set_error (bfd_error_bad_value);
4289 goto final_link_relocate;
4295 ((*_bfd_error_handler)
4296 (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
4297 input_section->owner,
4298 (unsigned long) rel->r_offset, howto->name,
4299 (unsigned long) relocation));
4300 bfd_set_error (bfd_error_bad_value);
4303 goto final_link_relocate;
4310 ((*_bfd_error_handler)
4311 (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
4312 input_section->owner,
4313 (unsigned long) rel->r_offset, howto->name,
4314 (unsigned long) relocation));
4315 bfd_set_error (bfd_error_bad_value);
4318 goto final_link_relocate;
4321 if ((signed int)relocation < -32
4322 || (signed int)relocation > 32)
4324 ((*_bfd_error_handler)
4325 (_("%B: 0x%lx: fatal: R_SH_PSHA relocation %d not in range -32..32"),
4326 input_section->owner,
4327 (unsigned long) rel->r_offset,
4328 (unsigned long) relocation));
4329 bfd_set_error (bfd_error_bad_value);
4332 goto final_link_relocate;
4335 if ((signed int)relocation < -16
4336 || (signed int)relocation > 16)
4338 ((*_bfd_error_handler)
4339 (_("%B: 0x%lx: fatal: R_SH_PSHL relocation %d not in range -32..32"),
4340 input_section->owner,
4341 (unsigned long) rel->r_offset,
4342 (unsigned long) relocation));
4343 bfd_set_error (bfd_error_bad_value);
4346 goto final_link_relocate;
4350 #ifdef INCLUDE_SHMEDIA
4351 case R_SH_IMM_LOW16_PCREL:
4352 case R_SH_IMM_MEDLOW16_PCREL:
4353 case R_SH_IMM_MEDHI16_PCREL:
4354 case R_SH_IMM_HI16_PCREL:
4358 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4359 || h->root.type != bfd_link_hash_undefweak)
4360 && r_symndx != STN_UNDEF
4361 && (input_section->flags & SEC_ALLOC) != 0
4363 && (r_type == R_SH_DIR32
4364 || !SYMBOL_CALLS_LOCAL (info, h)))
4366 Elf_Internal_Rela outrel;
4368 bfd_boolean skip, relocate;
4370 /* When generating a shared object, these relocations
4371 are copied into the output file to be resolved at run
4376 sreloc = _bfd_elf_get_dynamic_reloc_section
4377 (input_bfd, input_section, /*rela?*/ TRUE);
4386 _bfd_elf_section_offset (output_bfd, info, input_section,
4388 if (outrel.r_offset == (bfd_vma) -1)
4390 else if (outrel.r_offset == (bfd_vma) -2)
4391 skip = TRUE, relocate = TRUE;
4392 outrel.r_offset += (input_section->output_section->vma
4393 + input_section->output_offset);
4396 memset (&outrel, 0, sizeof outrel);
4397 else if (r_type == R_SH_REL32)
4399 BFD_ASSERT (h != NULL && h->dynindx != -1);
4400 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32);
4402 = (howto->partial_inplace
4403 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4406 #ifdef INCLUDE_SHMEDIA
4407 else if (r_type == R_SH_IMM_LOW16_PCREL
4408 || r_type == R_SH_IMM_MEDLOW16_PCREL
4409 || r_type == R_SH_IMM_MEDHI16_PCREL
4410 || r_type == R_SH_IMM_HI16_PCREL)
4412 BFD_ASSERT (h != NULL && h->dynindx != -1);
4413 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
4414 outrel.r_addend = addend;
4419 || ((info->symbolic || h->dynindx == -1)
4420 && h->def_regular)))
4424 BFD_ASSERT (sec != NULL);
4425 BFD_ASSERT (sec->output_section != NULL);
4426 dynindx = elf_section_data (sec->output_section)->dynindx;
4427 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4428 outrel.r_addend = relocation;
4430 += (howto->partial_inplace
4431 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4433 outrel.r_addend -= sec->output_section->vma;
4437 /* h->dynindx may be -1 if this symbol was marked to
4440 || ((info->symbolic || h->dynindx == -1)
4443 relocate = howto->partial_inplace;
4444 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4448 BFD_ASSERT (h->dynindx != -1);
4449 outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32);
4451 outrel.r_addend = relocation;
4453 += (howto->partial_inplace
4454 ? bfd_get_32 (input_bfd, contents + rel->r_offset)
4458 loc = sreloc->contents;
4459 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4460 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4462 check_segment[0] = check_segment[1] = -1;
4464 /* If this reloc is against an external symbol, we do
4465 not want to fiddle with the addend. Otherwise, we
4466 need to include the symbol value so that it becomes
4467 an addend for the dynamic reloc. */
4471 else if (fdpic_p && !info->shared
4472 && r_type == R_SH_DIR32
4473 && (input_section->flags & SEC_ALLOC) != 0)
4479 if (sh_elf_osec_readonly_p (output_bfd,
4480 input_section->output_section))
4482 (*_bfd_error_handler)
4483 (_("%B(%A+0x%lx): cannot emit fixup to `%s' in read-only section"),
4486 (long) rel->r_offset,
4491 offset = _bfd_elf_section_offset (output_bfd, info,
4492 input_section, rel->r_offset);
4493 if (offset != (bfd_vma)-1)
4494 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4495 input_section->output_section->vma
4496 + input_section->output_offset
4499 check_segment[0] = check_segment[1] = -1;
4501 goto final_link_relocate;
4504 #ifdef INCLUDE_SHMEDIA
4505 case R_SH_GOTPLT_LOW16:
4506 case R_SH_GOTPLT_MEDLOW16:
4507 case R_SH_GOTPLT_MEDHI16:
4508 case R_SH_GOTPLT_HI16:
4509 case R_SH_GOTPLT10BY4:
4510 case R_SH_GOTPLT10BY8:
4512 /* Relocation is to the entry for this symbol in the
4513 procedure linkage table. */
4520 || h->plt.offset == (bfd_vma) -1
4521 || h->got.offset != (bfd_vma) -1)
4524 /* Relocation is to the entry for this symbol in the global
4525 offset table extension for the procedure linkage table. */
4528 BFD_ASSERT (sgotplt != NULL);
4529 relocation = (sgotplt->output_offset
4530 + (get_plt_index (htab->plt_info, h->plt.offset)
4534 relocation -= GOT_BIAS;
4537 goto final_link_relocate;
4542 #ifdef INCLUDE_SHMEDIA
4543 case R_SH_GOT_LOW16:
4544 case R_SH_GOT_MEDLOW16:
4545 case R_SH_GOT_MEDHI16:
4550 /* Relocation is to the entry for this symbol in the global
4554 BFD_ASSERT (sgot != NULL);
4555 check_segment[0] = check_segment[1] = -1;
4561 off = h->got.offset;
4562 #ifdef INCLUDE_SHMEDIA
4563 if (seen_stt_datalabel)
4565 struct elf_sh_link_hash_entry *hsh;
4567 hsh = (struct elf_sh_link_hash_entry *)h;
4568 off = hsh->datalabel_got.offset;
4571 BFD_ASSERT (off != (bfd_vma) -1);
4573 dyn = htab->root.dynamic_sections_created;
4574 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
4576 && SYMBOL_REFERENCES_LOCAL (info, h))
4577 || (ELF_ST_VISIBILITY (h->other)
4578 && h->root.type == bfd_link_hash_undefweak))
4580 /* This is actually a static link, or it is a
4581 -Bsymbolic link and the symbol is defined
4582 locally, or the symbol was forced to be local
4583 because of a version file. We must initialize
4584 this entry in the global offset table. Since the
4585 offset must always be a multiple of 4, we use the
4586 least significant bit to record whether we have
4587 initialized it already.
4589 When doing a dynamic link, we create a .rela.got
4590 relocation entry to initialize the value. This
4591 is done in the finish_dynamic_symbol routine. */
4596 bfd_put_32 (output_bfd, relocation,
4597 sgot->contents + off);
4598 #ifdef INCLUDE_SHMEDIA
4599 if (seen_stt_datalabel)
4601 struct elf_sh_link_hash_entry *hsh;
4603 hsh = (struct elf_sh_link_hash_entry *)h;
4604 hsh->datalabel_got.offset |= 1;
4610 /* If we initialize the GOT entry here with a valid
4611 symbol address, also add a fixup. */
4612 if (fdpic_p && !info->shared
4613 && sh_elf_hash_entry (h)->got_type == GOT_NORMAL
4614 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
4615 || h->root.type != bfd_link_hash_undefweak))
4616 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4617 sgot->output_section->vma
4618 + sgot->output_offset
4623 relocation = sh_elf_got_offset (htab) + off;
4627 #ifdef INCLUDE_SHMEDIA
4630 BFD_ASSERT (local_got_offsets != NULL
4631 && (local_got_offsets[symtab_hdr->sh_info
4635 off = local_got_offsets[symtab_hdr->sh_info
4641 BFD_ASSERT (local_got_offsets != NULL
4642 && local_got_offsets[r_symndx] != (bfd_vma) -1);
4644 off = local_got_offsets[r_symndx];
4645 #ifdef INCLUDE_SHMEDIA
4649 /* The offset must always be a multiple of 4. We use
4650 the least significant bit to record whether we have
4651 already generated the necessary reloc. */
4656 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
4660 Elf_Internal_Rela outrel;
4663 if (srelgot == NULL)
4665 srelgot = bfd_get_linker_section (dynobj,
4667 BFD_ASSERT (srelgot != NULL);
4670 outrel.r_offset = (sgot->output_section->vma
4671 + sgot->output_offset
4676 = elf_section_data (sec->output_section)->dynindx;
4677 outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
4678 outrel.r_addend = relocation;
4679 outrel.r_addend -= sec->output_section->vma;
4683 outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
4684 outrel.r_addend = relocation;
4686 loc = srelgot->contents;
4687 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4688 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4691 && (sh_elf_local_got_type (input_bfd) [r_symndx]
4693 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4694 sgot->output_section->vma
4695 + sgot->output_offset
4698 #ifdef INCLUDE_SHMEDIA
4700 local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1;
4703 local_got_offsets[r_symndx] |= 1;
4706 relocation = sh_elf_got_offset (htab) + off;
4710 relocation -= GOT_BIAS;
4713 if (r_type == R_SH_GOT20)
4715 r = install_movi20_field (output_bfd, relocation + addend,
4716 input_bfd, input_section, contents,
4721 goto final_link_relocate;
4725 #ifdef INCLUDE_SHMEDIA
4726 case R_SH_GOTOFF_LOW16:
4727 case R_SH_GOTOFF_MEDLOW16:
4728 case R_SH_GOTOFF_MEDHI16:
4729 case R_SH_GOTOFF_HI16:
4731 /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
4732 we place at the start of the .got.plt section. This is the same
4733 as the start of the output .got section, unless there are function
4734 descriptors in front of it. */
4736 BFD_ASSERT (sgotplt != NULL);
4737 check_segment[0] = got_segment;
4738 relocation -= sgotplt->output_section->vma + sgotplt->output_offset
4739 + htab->root.hgot->root.u.def.value;
4742 relocation -= GOT_BIAS;
4745 addend = rel->r_addend;
4747 if (r_type == R_SH_GOTOFF20)
4749 r = install_movi20_field (output_bfd, relocation + addend,
4750 input_bfd, input_section, contents,
4755 goto final_link_relocate;
4758 #ifdef INCLUDE_SHMEDIA
4759 case R_SH_GOTPC_LOW16:
4760 case R_SH_GOTPC_MEDLOW16:
4761 case R_SH_GOTPC_MEDHI16:
4762 case R_SH_GOTPC_HI16:
4764 /* Use global offset table as symbol value. */
4766 BFD_ASSERT (sgotplt != NULL);
4767 relocation = sgotplt->output_section->vma + sgotplt->output_offset;
4770 relocation += GOT_BIAS;
4773 addend = rel->r_addend;
4775 goto final_link_relocate;
4778 #ifdef INCLUDE_SHMEDIA
4779 case R_SH_PLT_LOW16:
4780 case R_SH_PLT_MEDLOW16:
4781 case R_SH_PLT_MEDHI16:
4784 /* Relocation is to the entry for this symbol in the
4785 procedure linkage table. */
4787 /* Resolve a PLT reloc against a local symbol directly,
4788 without using the procedure linkage table. */
4790 goto final_link_relocate;
4792 /* We don't want to warn on calls to undefined weak symbols,
4793 as calls to them must be protected by non-NULL tests
4794 anyway, and unprotected calls would invoke undefined
4796 if (h->root.type == bfd_link_hash_undefweak)
4797 check_segment[0] = check_segment[1] = -1;
4799 if (h->forced_local)
4800 goto final_link_relocate;
4802 if (h->plt.offset == (bfd_vma) -1)
4804 /* We didn't make a PLT entry for this symbol. This
4805 happens when statically linking PIC code, or when
4806 using -Bsymbolic. */
4807 goto final_link_relocate;
4810 BFD_ASSERT (splt != NULL);
4811 check_segment[1] = plt_segment;
4812 relocation = (splt->output_section->vma
4813 + splt->output_offset
4816 #ifdef INCLUDE_SHMEDIA
4820 addend = rel->r_addend;
4822 goto final_link_relocate;
4824 /* Relocation is to the canonical function descriptor for this
4825 symbol, possibly via the GOT. Initialize the GOT
4826 entry and function descriptor if necessary. */
4827 case R_SH_GOTFUNCDESC:
4828 case R_SH_GOTFUNCDESC20:
4832 asection *reloc_section;
4833 bfd_vma reloc_offset;
4834 int reloc_type = R_SH_FUNCDESC;
4838 check_segment[0] = check_segment[1] = -1;
4840 /* FIXME: See what FRV does for global symbols in the
4841 executable, with --export-dynamic. Do they need ld.so
4842 to allocate official descriptors? See what this code
4848 if (r_type == R_SH_FUNCDESC)
4850 reloc_section = input_section;
4851 reloc_offset = rel->r_offset;
4855 reloc_section = sgot;
4858 reloc_offset = h->got.offset;
4861 BFD_ASSERT (local_got_offsets != NULL);
4862 reloc_offset = local_got_offsets[r_symndx];
4864 BFD_ASSERT (reloc_offset != MINUS_ONE);
4866 if (reloc_offset & 1)
4869 goto funcdesc_done_got;
4873 if (h && h->root.type == bfd_link_hash_undefweak
4874 && (SYMBOL_CALLS_LOCAL (info, h)
4875 || !htab->root.dynamic_sections_created))
4876 /* Undefined weak symbol which will not be dynamically
4877 resolved later; leave it at zero. */
4878 goto funcdesc_leave_zero;
4879 else if (SYMBOL_CALLS_LOCAL (info, h)
4880 && ! SYMBOL_FUNCDESC_LOCAL (info, h))
4882 /* If the symbol needs a non-local function descriptor
4883 but binds locally (i.e., its visibility is
4884 protected), emit a dynamic relocation decayed to
4885 section+offset. This is an optimization; the dynamic
4886 linker would resolve our function descriptor request
4887 to our copy of the function anyway. */
4888 dynindx = elf_section_data (h->root.u.def.section
4889 ->output_section)->dynindx;
4890 relocation += h->root.u.def.section->output_offset
4891 + h->root.u.def.value;
4893 else if (! SYMBOL_FUNCDESC_LOCAL (info, h))
4895 /* If the symbol is dynamic and there will be dynamic
4896 symbol resolution because we are or are linked with a
4897 shared library, emit a FUNCDESC relocation such that
4898 the dynamic linker will allocate the function
4900 BFD_ASSERT (h->dynindx != -1);
4901 dynindx = h->dynindx;
4907 /* Otherwise, we know we have a private function
4908 descriptor, so reference it directly. */
4909 reloc_type = R_SH_DIR32;
4910 dynindx = elf_section_data (htab->sfuncdesc
4911 ->output_section)->dynindx;
4915 offset = sh_elf_hash_entry (h)->funcdesc.offset;
4916 BFD_ASSERT (offset != MINUS_ONE);
4917 if ((offset & 1) == 0)
4919 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
4922 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
4927 union gotref *local_funcdesc;
4929 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
4930 offset = local_funcdesc[r_symndx].offset;
4931 BFD_ASSERT (offset != MINUS_ONE);
4932 if ((offset & 1) == 0)
4934 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
4938 local_funcdesc[r_symndx].offset |= 1;
4942 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
4945 if (!info->shared && SYMBOL_FUNCDESC_LOCAL (info, h))
4949 if (sh_elf_osec_readonly_p (output_bfd,
4950 reloc_section->output_section))
4952 (*_bfd_error_handler)
4953 (_("%B(%A+0x%lx): cannot emit fixup to `%s' in read-only section"),
4956 (long) rel->r_offset,
4961 offset = _bfd_elf_section_offset (output_bfd, info,
4962 reloc_section, reloc_offset);
4964 if (offset != (bfd_vma)-1)
4965 sh_elf_add_rofixup (output_bfd, htab->srofixup,
4967 + reloc_section->output_section->vma
4968 + reloc_section->output_offset);
4970 else if ((reloc_section->output_section->flags
4971 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
4975 if (sh_elf_osec_readonly_p (output_bfd,
4976 reloc_section->output_section))
4978 info->callbacks->warning
4980 _("cannot emit dynamic relocations in read-only section"),
4981 symname, input_bfd, reloc_section, reloc_offset);
4985 if (srelgot == NULL)
4987 srelgot = bfd_get_linker_section (dynobj, ".rela.got");
4988 BFD_ASSERT (srelgot != NULL);
4991 offset = _bfd_elf_section_offset (output_bfd, info,
4992 reloc_section, reloc_offset);
4994 if (offset != (bfd_vma)-1)
4995 sh_elf_add_dyn_reloc (output_bfd, srelgot,
4997 + reloc_section->output_section->vma
4998 + reloc_section->output_offset,
4999 reloc_type, dynindx, relocation);
5001 if (r_type == R_SH_FUNCDESC)
5009 goto funcdesc_leave_zero;
5013 if (SYMBOL_FUNCDESC_LOCAL (info, h))
5014 relocation += htab->sfuncdesc->output_section->vma;
5015 funcdesc_leave_zero:
5016 if (r_type != R_SH_FUNCDESC)
5018 bfd_put_32 (output_bfd, relocation,
5019 reloc_section->contents + reloc_offset);
5023 local_got_offsets[r_symndx] |= 1;
5027 relocation = sh_elf_got_offset (htab) + reloc_offset;
5029 relocation -= GOT_BIAS;
5032 if (r_type == R_SH_GOTFUNCDESC20)
5034 r = install_movi20_field (output_bfd, relocation + addend,
5035 input_bfd, input_section, contents,
5040 goto final_link_relocate;
5044 case R_SH_GOTOFFFUNCDESC:
5045 case R_SH_GOTOFFFUNCDESC20:
5046 /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
5047 executable and --export-dynamic. If such symbols get
5048 ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
5052 check_segment[0] = check_segment[1] = -1;
5054 addend = rel->r_addend;
5056 if (h && (h->root.type == bfd_link_hash_undefweak
5057 || !SYMBOL_FUNCDESC_LOCAL (info, h)))
5060 (_("%B(%A+0x%lx): %s relocation against external symbol \"%s\""),
5061 input_bfd, input_section, (long) rel->r_offset, howto->name,
5062 h->root.root.string);
5069 /* Otherwise, we know we have a private function
5070 descriptor, so reference it directly. */
5073 offset = sh_elf_hash_entry (h)->funcdesc.offset;
5074 BFD_ASSERT (offset != MINUS_ONE);
5075 if ((offset & 1) == 0)
5077 if (!sh_elf_initialize_funcdesc (output_bfd, info, h,
5080 sh_elf_hash_entry (h)->funcdesc.offset |= 1;
5085 union gotref *local_funcdesc;
5087 local_funcdesc = sh_elf_local_funcdesc (input_bfd);
5088 offset = local_funcdesc[r_symndx].offset;
5089 BFD_ASSERT (offset != MINUS_ONE);
5090 if ((offset & 1) == 0)
5092 if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL,
5096 local_funcdesc[r_symndx].offset |= 1;
5100 relocation = htab->sfuncdesc->output_offset + (offset & ~1);
5103 relocation -= (htab->root.hgot->root.u.def.value
5104 + sgotplt->output_offset);
5106 relocation -= GOT_BIAS;
5109 if (r_type == R_SH_GOTOFFFUNCDESC20)
5111 r = install_movi20_field (output_bfd, relocation + addend,
5112 input_bfd, input_section, contents,
5117 goto final_link_relocate;
5119 case R_SH_LOOP_START:
5121 static bfd_vma start, end;
5123 start = (relocation + rel->r_addend
5124 - (sec->output_section->vma + sec->output_offset));
5125 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
5126 rel->r_offset, sec, start, end);
5130 end = (relocation + rel->r_addend
5131 - (sec->output_section->vma + sec->output_offset));
5132 r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
5133 rel->r_offset, sec, start, end);
5137 case R_SH_TLS_GD_32:
5138 case R_SH_TLS_IE_32:
5140 check_segment[0] = check_segment[1] = -1;
5141 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
5142 got_type = GOT_UNKNOWN;
5143 if (h == NULL && local_got_offsets)
5144 got_type = sh_elf_local_got_type (input_bfd) [r_symndx];
5147 got_type = sh_elf_hash_entry (h)->got_type;
5149 && (h->dynindx == -1
5151 r_type = R_SH_TLS_LE_32;
5154 if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE)
5155 r_type = R_SH_TLS_IE_32;
5157 if (r_type == R_SH_TLS_LE_32)
5160 unsigned short insn;
5162 if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32)
5164 /* GD->LE transition:
5165 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5166 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5167 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
5169 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
5171 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
5173 offset = rel->r_offset;
5174 BFD_ASSERT (offset >= 16);
5175 /* Size of GD instructions is 16 or 18. */
5177 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5178 if ((insn & 0xff00) == 0xc700)
5180 BFD_ASSERT (offset >= 2);
5182 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5185 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5186 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5187 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5188 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5189 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5190 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5191 BFD_ASSERT (insn == 0x310c);
5192 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5193 BFD_ASSERT (insn == 0x410b);
5194 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5195 BFD_ASSERT (insn == 0x34cc);
5197 bfd_put_16 (output_bfd, 0x0012, contents + offset + 2);
5198 bfd_put_16 (output_bfd, 0x304c, contents + offset + 4);
5199 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
5200 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5201 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5207 /* IE->LE transition:
5208 mov.l 1f,r0; stc gbr,rN; mov.l @(r0,r12),rM;
5209 bra 2f; add ...; .align 2; 1: x@GOTTPOFF; 2:
5211 mov.l .Ln,rM; stc gbr,rN; nop; ...;
5214 offset = rel->r_offset;
5215 BFD_ASSERT (offset >= 16);
5216 /* Size of IE instructions is 10 or 12. */
5218 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5219 if ((insn & 0xf0ff) == 0x0012)
5221 BFD_ASSERT (offset >= 2);
5223 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5226 BFD_ASSERT ((insn & 0xff00) == 0xd000);
5227 target = insn & 0x00ff;
5228 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5229 BFD_ASSERT ((insn & 0xf0ff) == 0x0012);
5230 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5231 BFD_ASSERT ((insn & 0xf0ff) == 0x00ce);
5232 insn = 0xd000 | (insn & 0x0f00) | target;
5233 bfd_put_16 (output_bfd, insn, contents + offset + 0);
5234 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
5237 bfd_put_32 (output_bfd, tpoff (info, relocation),
5238 contents + rel->r_offset);
5242 if (sgot == NULL || sgotplt == NULL)
5246 off = h->got.offset;
5249 if (local_got_offsets == NULL)
5252 off = local_got_offsets[r_symndx];
5255 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
5256 if (r_type == R_SH_TLS_IE_32
5257 && ! htab->root.dynamic_sections_created)
5260 bfd_put_32 (output_bfd, tpoff (info, relocation),
5261 sgot->contents + off);
5262 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
5263 contents + rel->r_offset);
5271 Elf_Internal_Rela outrel;
5275 if (srelgot == NULL)
5277 srelgot = bfd_get_linker_section (dynobj, ".rela.got");
5278 BFD_ASSERT (srelgot != NULL);
5281 outrel.r_offset = (sgot->output_section->vma
5282 + sgot->output_offset + off);
5284 if (h == NULL || h->dynindx == -1)
5289 dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 :
5291 if (dr_type == R_SH_TLS_TPOFF32 && indx == 0)
5292 outrel.r_addend = relocation - dtpoff_base (info);
5294 outrel.r_addend = 0;
5295 outrel.r_info = ELF32_R_INFO (indx, dr_type);
5296 loc = srelgot->contents;
5297 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
5298 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5300 if (r_type == R_SH_TLS_GD_32)
5304 bfd_put_32 (output_bfd,
5305 relocation - dtpoff_base (info),
5306 sgot->contents + off + 4);
5310 outrel.r_info = ELF32_R_INFO (indx,
5312 outrel.r_offset += 4;
5313 outrel.r_addend = 0;
5314 srelgot->reloc_count++;
5315 loc += sizeof (Elf32_External_Rela);
5316 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5323 local_got_offsets[r_symndx] |= 1;
5326 if (off >= (bfd_vma) -2)
5329 if (r_type == (int) ELF32_R_TYPE (rel->r_info))
5330 relocation = sh_elf_got_offset (htab) + off;
5334 unsigned short insn;
5336 /* GD->IE transition:
5337 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5338 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5339 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
5341 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
5342 nop; nop; bra 3f; nop; .align 2;
5343 1: .long x@TPOFF; 2:...; 3:. */
5345 offset = rel->r_offset;
5346 BFD_ASSERT (offset >= 16);
5347 /* Size of GD instructions is 16 or 18. */
5349 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5350 if ((insn & 0xff00) == 0xc700)
5352 BFD_ASSERT (offset >= 2);
5354 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5357 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5359 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
5360 bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset);
5362 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5363 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5364 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5365 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5366 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5367 BFD_ASSERT (insn == 0x310c);
5368 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5369 BFD_ASSERT (insn == 0x410b);
5370 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5371 BFD_ASSERT (insn == 0x34cc);
5373 bfd_put_16 (output_bfd, 0x0412, contents + offset + 2);
5374 bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4);
5375 bfd_put_16 (output_bfd, 0x304c, contents + offset + 6);
5376 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5377 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5379 bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off,
5380 contents + rel->r_offset);
5385 addend = rel->r_addend;
5387 goto final_link_relocate;
5389 case R_SH_TLS_LD_32:
5391 check_segment[0] = check_segment[1] = -1;
5395 unsigned short insn;
5397 /* LD->LE transition:
5398 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5399 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5400 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
5402 stc gbr,r0; nop; nop; nop;
5403 nop; nop; bra 3f; ...; 3:. */
5405 offset = rel->r_offset;
5406 BFD_ASSERT (offset >= 16);
5407 /* Size of LD instructions is 16 or 18. */
5409 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5410 if ((insn & 0xff00) == 0xc700)
5412 BFD_ASSERT (offset >= 2);
5414 insn = bfd_get_16 (input_bfd, contents + offset + 0);
5417 BFD_ASSERT ((insn & 0xff00) == 0xd400);
5418 insn = bfd_get_16 (input_bfd, contents + offset + 2);
5419 BFD_ASSERT ((insn & 0xff00) == 0xc700);
5420 insn = bfd_get_16 (input_bfd, contents + offset + 4);
5421 BFD_ASSERT ((insn & 0xff00) == 0xd100);
5422 insn = bfd_get_16 (input_bfd, contents + offset + 6);
5423 BFD_ASSERT (insn == 0x310c);
5424 insn = bfd_get_16 (input_bfd, contents + offset + 8);
5425 BFD_ASSERT (insn == 0x410b);
5426 insn = bfd_get_16 (input_bfd, contents + offset + 10);
5427 BFD_ASSERT (insn == 0x34cc);
5429 bfd_put_16 (output_bfd, 0x0012, contents + offset + 0);
5430 bfd_put_16 (output_bfd, 0x0009, contents + offset + 2);
5431 bfd_put_16 (output_bfd, 0x0009, contents + offset + 4);
5432 bfd_put_16 (output_bfd, 0x0009, contents + offset + 6);
5433 bfd_put_16 (output_bfd, 0x0009, contents + offset + 8);
5434 bfd_put_16 (output_bfd, 0x0009, contents + offset + 10);
5439 if (sgot == NULL || sgotplt == NULL)
5442 off = htab->tls_ldm_got.offset;
5447 Elf_Internal_Rela outrel;
5450 srelgot = htab->srelgot;
5451 if (srelgot == NULL)
5454 outrel.r_offset = (sgot->output_section->vma
5455 + sgot->output_offset + off);
5456 outrel.r_addend = 0;
5457 outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32);
5458 loc = srelgot->contents;
5459 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
5460 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5461 htab->tls_ldm_got.offset |= 1;
5464 relocation = sh_elf_got_offset (htab) + off;
5465 addend = rel->r_addend;
5467 goto final_link_relocate;
5469 case R_SH_TLS_LDO_32:
5470 check_segment[0] = check_segment[1] = -1;
5472 relocation = tpoff (info, relocation);
5474 relocation -= dtpoff_base (info);
5476 addend = rel->r_addend;
5477 goto final_link_relocate;
5479 case R_SH_TLS_LE_32:
5482 Elf_Internal_Rela outrel;
5485 check_segment[0] = check_segment[1] = -1;
5487 if (! info->shared || info->pie)
5489 relocation = tpoff (info, relocation);
5490 addend = rel->r_addend;
5491 goto final_link_relocate;
5496 sreloc = _bfd_elf_get_dynamic_reloc_section
5497 (input_bfd, input_section, /*rela?*/ TRUE);
5502 if (h == NULL || h->dynindx == -1)
5507 outrel.r_offset = (input_section->output_section->vma
5508 + input_section->output_offset
5510 outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32);
5512 outrel.r_addend = relocation - dtpoff_base (info);
5514 outrel.r_addend = 0;
5516 loc = sreloc->contents;
5517 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
5518 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
5524 if (fdpic_p && check_segment[0] != (unsigned) -1
5525 && check_segment[0] != check_segment[1])
5527 /* We don't want duplicate errors for undefined symbols. */
5528 if (!h || h->root.type != bfd_link_hash_undefined)
5532 info->callbacks->einfo
5533 (_("%X%C: relocation to \"%s\" references a different segment\n"),
5534 input_bfd, input_section, rel->r_offset, symname);
5538 info->callbacks->einfo
5539 (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5540 input_bfd, input_section, rel->r_offset, symname);
5543 elf_elfheader (output_bfd)->e_flags &= ~EF_SH_PIC;
5546 if (r != bfd_reloc_ok)
5551 case bfd_reloc_outofrange:
5553 case bfd_reloc_overflow:
5561 name = (bfd_elf_string_from_elf_section
5562 (input_bfd, symtab_hdr->sh_link, sym->st_name));
5566 name = bfd_section_name (input_bfd, sec);
5568 if (! ((*info->callbacks->reloc_overflow)
5569 (info, (h ? &h->root : NULL), name, howto->name,
5570 (bfd_vma) 0, input_bfd, input_section,
5582 /* This is a version of bfd_generic_get_relocated_section_contents
5583 which uses sh_elf_relocate_section. */
5586 sh_elf_get_relocated_section_contents (bfd *output_bfd,
5587 struct bfd_link_info *link_info,
5588 struct bfd_link_order *link_order,
5590 bfd_boolean relocatable,
5593 Elf_Internal_Shdr *symtab_hdr;
5594 asection *input_section = link_order->u.indirect.section;
5595 bfd *input_bfd = input_section->owner;
5596 asection **sections = NULL;
5597 Elf_Internal_Rela *internal_relocs = NULL;
5598 Elf_Internal_Sym *isymbuf = NULL;
5600 /* We only need to handle the case of relaxing, or of having a
5601 particular set of section contents, specially. */
5603 || elf_section_data (input_section)->this_hdr.contents == NULL)
5604 return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
5609 symtab_hdr = &elf_symtab_hdr (input_bfd);
5611 memcpy (data, elf_section_data (input_section)->this_hdr.contents,
5612 (size_t) input_section->size);
5614 if ((input_section->flags & SEC_RELOC) != 0
5615 && input_section->reloc_count > 0)
5618 Elf_Internal_Sym *isym, *isymend;
5621 internal_relocs = (_bfd_elf_link_read_relocs
5622 (input_bfd, input_section, NULL,
5623 (Elf_Internal_Rela *) NULL, FALSE));
5624 if (internal_relocs == NULL)
5627 if (symtab_hdr->sh_info != 0)
5629 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
5630 if (isymbuf == NULL)
5631 isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
5632 symtab_hdr->sh_info, 0,
5634 if (isymbuf == NULL)
5638 amt = symtab_hdr->sh_info;
5639 amt *= sizeof (asection *);
5640 sections = (asection **) bfd_malloc (amt);
5641 if (sections == NULL && amt != 0)
5644 isymend = isymbuf + symtab_hdr->sh_info;
5645 for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp)
5649 if (isym->st_shndx == SHN_UNDEF)
5650 isec = bfd_und_section_ptr;
5651 else if (isym->st_shndx == SHN_ABS)
5652 isec = bfd_abs_section_ptr;
5653 else if (isym->st_shndx == SHN_COMMON)
5654 isec = bfd_com_section_ptr;
5656 isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx);
5661 if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
5662 input_section, data, internal_relocs,
5666 if (sections != NULL)
5669 && symtab_hdr->contents != (unsigned char *) isymbuf)
5671 if (elf_section_data (input_section)->relocs != internal_relocs)
5672 free (internal_relocs);
5678 if (sections != NULL)
5681 && symtab_hdr->contents != (unsigned char *) isymbuf)
5683 if (internal_relocs != NULL
5684 && elf_section_data (input_section)->relocs != internal_relocs)
5685 free (internal_relocs);
5689 /* Return the base VMA address which should be subtracted from real addresses
5690 when resolving @dtpoff relocation.
5691 This is PT_TLS segment p_vaddr. */
5694 dtpoff_base (struct bfd_link_info *info)
5696 /* If tls_sec is NULL, we should have signalled an error already. */
5697 if (elf_hash_table (info)->tls_sec == NULL)
5699 return elf_hash_table (info)->tls_sec->vma;
5702 /* Return the relocation value for R_SH_TLS_TPOFF32.. */
5705 tpoff (struct bfd_link_info *info, bfd_vma address)
5707 /* If tls_sec is NULL, we should have signalled an error already. */
5708 if (elf_hash_table (info)->tls_sec == NULL)
5710 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5711 structure which has 2 pointer fields. */
5712 return (address - elf_hash_table (info)->tls_sec->vma
5713 + align_power ((bfd_vma) 8,
5714 elf_hash_table (info)->tls_sec->alignment_power));
5718 sh_elf_gc_mark_hook (asection *sec,
5719 struct bfd_link_info *info,
5720 Elf_Internal_Rela *rel,
5721 struct elf_link_hash_entry *h,
5722 Elf_Internal_Sym *sym)
5725 switch (ELF32_R_TYPE (rel->r_info))
5727 case R_SH_GNU_VTINHERIT:
5728 case R_SH_GNU_VTENTRY:
5732 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
5735 /* Update the got entry reference counts for the section being removed. */
5738 sh_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
5739 asection *sec, const Elf_Internal_Rela *relocs)
5741 Elf_Internal_Shdr *symtab_hdr;
5742 struct elf_link_hash_entry **sym_hashes;
5743 bfd_signed_vma *local_got_refcounts;
5744 union gotref *local_funcdesc;
5745 const Elf_Internal_Rela *rel, *relend;
5747 if (info->relocatable)
5750 elf_section_data (sec)->local_dynrel = NULL;
5752 symtab_hdr = &elf_symtab_hdr (abfd);
5753 sym_hashes = elf_sym_hashes (abfd);
5754 local_got_refcounts = elf_local_got_refcounts (abfd);
5755 local_funcdesc = sh_elf_local_funcdesc (abfd);
5757 relend = relocs + sec->reloc_count;
5758 for (rel = relocs; rel < relend; rel++)
5760 unsigned long r_symndx;
5761 unsigned int r_type;
5762 struct elf_link_hash_entry *h = NULL;
5763 #ifdef INCLUDE_SHMEDIA
5764 int seen_stt_datalabel = 0;
5767 r_symndx = ELF32_R_SYM (rel->r_info);
5768 if (r_symndx >= symtab_hdr->sh_info)
5770 struct elf_sh_link_hash_entry *eh;
5771 struct elf_sh_dyn_relocs **pp;
5772 struct elf_sh_dyn_relocs *p;
5774 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5775 while (h->root.type == bfd_link_hash_indirect
5776 || h->root.type == bfd_link_hash_warning)
5778 #ifdef INCLUDE_SHMEDIA
5779 seen_stt_datalabel |= h->type == STT_DATALABEL;
5781 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5783 eh = (struct elf_sh_link_hash_entry *) h;
5784 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
5787 /* Everything must go for SEC. */
5793 r_type = ELF32_R_TYPE (rel->r_info);
5794 switch (sh_elf_optimized_tls_reloc (info, r_type, h != NULL))
5796 case R_SH_TLS_LD_32:
5797 if (sh_elf_hash_table (info)->tls_ldm_got.refcount > 0)
5798 sh_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
5806 #ifdef INCLUDE_SHMEDIA
5807 case R_SH_GOT_LOW16:
5808 case R_SH_GOT_MEDLOW16:
5809 case R_SH_GOT_MEDHI16:
5813 case R_SH_GOTOFF_LOW16:
5814 case R_SH_GOTOFF_MEDLOW16:
5815 case R_SH_GOTOFF_MEDHI16:
5816 case R_SH_GOTOFF_HI16:
5817 case R_SH_GOTPC_LOW16:
5818 case R_SH_GOTPC_MEDLOW16:
5819 case R_SH_GOTPC_MEDHI16:
5820 case R_SH_GOTPC_HI16:
5822 case R_SH_TLS_GD_32:
5823 case R_SH_TLS_IE_32:
5824 case R_SH_GOTFUNCDESC:
5825 case R_SH_GOTFUNCDESC20:
5828 #ifdef INCLUDE_SHMEDIA
5829 if (seen_stt_datalabel)
5831 struct elf_sh_link_hash_entry *eh;
5832 eh = (struct elf_sh_link_hash_entry *) h;
5833 if (eh->datalabel_got.refcount > 0)
5834 eh->datalabel_got.refcount -= 1;
5838 if (h->got.refcount > 0)
5839 h->got.refcount -= 1;
5841 else if (local_got_refcounts != NULL)
5843 #ifdef INCLUDE_SHMEDIA
5844 if (rel->r_addend & 1)
5846 if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0)
5847 local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1;
5851 if (local_got_refcounts[r_symndx] > 0)
5852 local_got_refcounts[r_symndx] -= 1;
5858 sh_elf_hash_entry (h)->abs_funcdesc_refcount -= 1;
5859 else if (sh_elf_hash_table (info)->fdpic_p && !info->shared)
5860 sh_elf_hash_table (info)->srofixup->size -= 4;
5864 case R_SH_GOTOFFFUNCDESC:
5865 case R_SH_GOTOFFFUNCDESC20:
5867 sh_elf_hash_entry (h)->funcdesc.refcount -= 1;
5869 local_funcdesc[r_symndx].refcount -= 1;
5873 if (sh_elf_hash_table (info)->fdpic_p && !info->shared
5874 && (sec->flags & SEC_ALLOC) != 0)
5875 sh_elf_hash_table (info)->srofixup->size -= 4;
5884 #ifdef INCLUDE_SHMEDIA
5885 case R_SH_PLT_LOW16:
5886 case R_SH_PLT_MEDLOW16:
5887 case R_SH_PLT_MEDHI16:
5892 if (h->plt.refcount > 0)
5893 h->plt.refcount -= 1;
5898 #ifdef INCLUDE_SHMEDIA
5899 case R_SH_GOTPLT_LOW16:
5900 case R_SH_GOTPLT_MEDLOW16:
5901 case R_SH_GOTPLT_MEDHI16:
5902 case R_SH_GOTPLT_HI16:
5903 case R_SH_GOTPLT10BY4:
5904 case R_SH_GOTPLT10BY8:
5908 struct elf_sh_link_hash_entry *eh;
5909 eh = (struct elf_sh_link_hash_entry *) h;
5910 if (eh->gotplt_refcount > 0)
5912 eh->gotplt_refcount -= 1;
5913 if (h->plt.refcount > 0)
5914 h->plt.refcount -= 1;
5916 #ifdef INCLUDE_SHMEDIA
5917 else if (seen_stt_datalabel)
5919 if (eh->datalabel_got.refcount > 0)
5920 eh->datalabel_got.refcount -= 1;
5923 else if (h->got.refcount > 0)
5924 h->got.refcount -= 1;
5926 else if (local_got_refcounts != NULL)
5928 #ifdef INCLUDE_SHMEDIA
5929 if (rel->r_addend & 1)
5931 if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0)
5932 local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1;
5936 if (local_got_refcounts[r_symndx] > 0)
5937 local_got_refcounts[r_symndx] -= 1;
5949 /* Copy the extra info we tack onto an elf_link_hash_entry. */
5952 sh_elf_copy_indirect_symbol (struct bfd_link_info *info,
5953 struct elf_link_hash_entry *dir,
5954 struct elf_link_hash_entry *ind)
5956 struct elf_sh_link_hash_entry *edir, *eind;
5958 edir = (struct elf_sh_link_hash_entry *) dir;
5959 eind = (struct elf_sh_link_hash_entry *) ind;
5961 if (eind->dyn_relocs != NULL)
5963 if (edir->dyn_relocs != NULL)
5965 struct elf_sh_dyn_relocs **pp;
5966 struct elf_sh_dyn_relocs *p;
5968 /* Add reloc counts against the indirect sym to the direct sym
5969 list. Merge any entries against the same section. */
5970 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
5972 struct elf_sh_dyn_relocs *q;
5974 for (q = edir->dyn_relocs; q != NULL; q = q->next)
5975 if (q->sec == p->sec)
5977 q->pc_count += p->pc_count;
5978 q->count += p->count;
5985 *pp = edir->dyn_relocs;
5988 edir->dyn_relocs = eind->dyn_relocs;
5989 eind->dyn_relocs = NULL;
5991 edir->gotplt_refcount = eind->gotplt_refcount;
5992 eind->gotplt_refcount = 0;
5993 #ifdef INCLUDE_SHMEDIA
5994 edir->datalabel_got.refcount += eind->datalabel_got.refcount;
5995 eind->datalabel_got.refcount = 0;
5997 edir->funcdesc.refcount += eind->funcdesc.refcount;
5998 eind->funcdesc.refcount = 0;
5999 edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount;
6000 eind->abs_funcdesc_refcount = 0;
6002 if (ind->root.type == bfd_link_hash_indirect
6003 && dir->got.refcount <= 0)
6005 edir->got_type = eind->got_type;
6006 eind->got_type = GOT_UNKNOWN;
6009 if (ind->root.type != bfd_link_hash_indirect
6010 && dir->dynamic_adjusted)
6012 /* If called to transfer flags for a weakdef during processing
6013 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
6014 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
6015 dir->ref_dynamic |= ind->ref_dynamic;
6016 dir->ref_regular |= ind->ref_regular;
6017 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
6018 dir->needs_plt |= ind->needs_plt;
6021 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
6025 sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type,
6033 case R_SH_TLS_GD_32:
6034 case R_SH_TLS_IE_32:
6036 return R_SH_TLS_LE_32;
6037 return R_SH_TLS_IE_32;
6038 case R_SH_TLS_LD_32:
6039 return R_SH_TLS_LE_32;
6045 /* Look through the relocs for a section during the first phase.
6046 Since we don't do .gots or .plts, we just need to consider the
6047 virtual table relocs for gc. */
6050 sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec,
6051 const Elf_Internal_Rela *relocs)
6053 Elf_Internal_Shdr *symtab_hdr;
6054 struct elf_link_hash_entry **sym_hashes;
6055 struct elf_sh_link_hash_table *htab;
6056 const Elf_Internal_Rela *rel;
6057 const Elf_Internal_Rela *rel_end;
6059 unsigned int r_type;
6060 enum got_type got_type, old_got_type;
6064 if (info->relocatable)
6067 BFD_ASSERT (is_sh_elf (abfd));
6069 symtab_hdr = &elf_symtab_hdr (abfd);
6070 sym_hashes = elf_sym_hashes (abfd);
6072 htab = sh_elf_hash_table (info);
6076 rel_end = relocs + sec->reloc_count;
6077 for (rel = relocs; rel < rel_end; rel++)
6079 struct elf_link_hash_entry *h;
6080 unsigned long r_symndx;
6081 #ifdef INCLUDE_SHMEDIA
6082 int seen_stt_datalabel = 0;
6085 r_symndx = ELF32_R_SYM (rel->r_info);
6086 r_type = ELF32_R_TYPE (rel->r_info);
6088 if (r_symndx < symtab_hdr->sh_info)
6092 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6093 while (h->root.type == bfd_link_hash_indirect
6094 || h->root.type == bfd_link_hash_warning)
6096 #ifdef INCLUDE_SHMEDIA
6097 seen_stt_datalabel |= h->type == STT_DATALABEL;
6099 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6103 r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL);
6105 && r_type == R_SH_TLS_IE_32
6107 && h->root.type != bfd_link_hash_undefined
6108 && h->root.type != bfd_link_hash_undefweak
6109 && (h->dynindx == -1
6111 r_type = R_SH_TLS_LE_32;
6116 case R_SH_GOTOFFFUNCDESC:
6117 case R_SH_GOTOFFFUNCDESC20:
6119 case R_SH_GOTFUNCDESC:
6120 case R_SH_GOTFUNCDESC20:
6123 if (h->dynindx == -1)
6124 switch (ELF_ST_VISIBILITY (h->other))
6130 bfd_elf_link_record_dynamic_symbol (info, h);
6137 /* Some relocs require a global offset table. */
6138 if (htab->sgot == NULL)
6143 /* This may require an rofixup. */
6152 case R_SH_GOTFUNCDESC:
6153 case R_SH_GOTFUNCDESC20:
6154 case R_SH_GOTOFFFUNCDESC:
6155 case R_SH_GOTOFFFUNCDESC20:
6157 #ifdef INCLUDE_SHMEDIA
6158 case R_SH_GOTPLT_LOW16:
6159 case R_SH_GOTPLT_MEDLOW16:
6160 case R_SH_GOTPLT_MEDHI16:
6161 case R_SH_GOTPLT_HI16:
6162 case R_SH_GOTPLT10BY4:
6163 case R_SH_GOTPLT10BY8:
6164 case R_SH_GOT_LOW16:
6165 case R_SH_GOT_MEDLOW16:
6166 case R_SH_GOT_MEDHI16:
6170 case R_SH_GOTOFF_LOW16:
6171 case R_SH_GOTOFF_MEDLOW16:
6172 case R_SH_GOTOFF_MEDHI16:
6173 case R_SH_GOTOFF_HI16:
6174 case R_SH_GOTPC_LOW16:
6175 case R_SH_GOTPC_MEDLOW16:
6176 case R_SH_GOTPC_MEDHI16:
6177 case R_SH_GOTPC_HI16:
6179 case R_SH_TLS_GD_32:
6180 case R_SH_TLS_LD_32:
6181 case R_SH_TLS_IE_32:
6182 if (htab->root.dynobj == NULL)
6183 htab->root.dynobj = abfd;
6184 if (!create_got_section (htab->root.dynobj, info))
6195 /* This relocation describes the C++ object vtable hierarchy.
6196 Reconstruct it for later use during GC. */
6197 case R_SH_GNU_VTINHERIT:
6198 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6202 /* This relocation describes which C++ vtable entries are actually
6203 used. Record for later use during GC. */
6204 case R_SH_GNU_VTENTRY:
6205 BFD_ASSERT (h != NULL);
6207 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6211 case R_SH_TLS_IE_32:
6213 info->flags |= DF_STATIC_TLS;
6217 case R_SH_TLS_GD_32:
6220 #ifdef INCLUDE_SHMEDIA
6221 case R_SH_GOT_LOW16:
6222 case R_SH_GOT_MEDLOW16:
6223 case R_SH_GOT_MEDHI16:
6228 case R_SH_GOTFUNCDESC:
6229 case R_SH_GOTFUNCDESC20:
6233 got_type = GOT_NORMAL;
6235 case R_SH_TLS_GD_32:
6236 got_type = GOT_TLS_GD;
6238 case R_SH_TLS_IE_32:
6239 got_type = GOT_TLS_IE;
6241 case R_SH_GOTFUNCDESC:
6242 case R_SH_GOTFUNCDESC20:
6243 got_type = GOT_FUNCDESC;
6249 #ifdef INCLUDE_SHMEDIA
6250 if (seen_stt_datalabel)
6252 struct elf_sh_link_hash_entry *eh
6253 = (struct elf_sh_link_hash_entry *) h;
6255 eh->datalabel_got.refcount += 1;
6259 h->got.refcount += 1;
6260 old_got_type = sh_elf_hash_entry (h)->got_type;
6264 bfd_signed_vma *local_got_refcounts;
6266 /* This is a global offset table entry for a local
6268 local_got_refcounts = elf_local_got_refcounts (abfd);
6269 if (local_got_refcounts == NULL)
6273 size = symtab_hdr->sh_info;
6274 size *= sizeof (bfd_signed_vma);
6275 #ifdef INCLUDE_SHMEDIA
6276 /* Reserve space for both the datalabel and
6277 codelabel local GOT offsets. */
6280 size += symtab_hdr->sh_info;
6281 local_got_refcounts = ((bfd_signed_vma *)
6282 bfd_zalloc (abfd, size));
6283 if (local_got_refcounts == NULL)
6285 elf_local_got_refcounts (abfd) = local_got_refcounts;
6286 #ifdef INCLUDE_SHMEDIA
6287 /* Take care of both the datalabel and codelabel local
6289 sh_elf_local_got_type (abfd)
6290 = (char *) (local_got_refcounts + 2 * symtab_hdr->sh_info);
6292 sh_elf_local_got_type (abfd)
6293 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
6296 #ifdef INCLUDE_SHMEDIA
6297 if (rel->r_addend & 1)
6298 local_got_refcounts[symtab_hdr->sh_info + r_symndx] += 1;
6301 local_got_refcounts[r_symndx] += 1;
6302 old_got_type = sh_elf_local_got_type (abfd) [r_symndx];
6305 /* If a TLS symbol is accessed using IE at least once,
6306 there is no point to use dynamic model for it. */
6307 if (old_got_type != got_type && old_got_type != GOT_UNKNOWN
6308 && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE))
6310 if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD)
6311 got_type = GOT_TLS_IE;
6314 if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC)
6315 && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL))
6316 (*_bfd_error_handler)
6317 (_("%B: `%s' accessed both as normal and FDPIC symbol"),
6318 abfd, h->root.root.string);
6319 else if (old_got_type == GOT_FUNCDESC
6320 || got_type == GOT_FUNCDESC)
6321 (*_bfd_error_handler)
6322 (_("%B: `%s' accessed both as FDPIC and thread local symbol"),
6323 abfd, h->root.root.string);
6325 (*_bfd_error_handler)
6326 (_("%B: `%s' accessed both as normal and thread local symbol"),
6327 abfd, h->root.root.string);
6332 if (old_got_type != got_type)
6335 sh_elf_hash_entry (h)->got_type = got_type;
6337 sh_elf_local_got_type (abfd) [r_symndx] = got_type;
6342 case R_SH_TLS_LD_32:
6343 sh_elf_hash_table(info)->tls_ldm_got.refcount += 1;
6347 case R_SH_GOTOFFFUNCDESC:
6348 case R_SH_GOTOFFFUNCDESC20:
6351 (*_bfd_error_handler)
6352 (_("%B: Function descriptor relocation with non-zero addend"),
6359 union gotref *local_funcdesc;
6361 /* We need a function descriptor for a local symbol. */
6362 local_funcdesc = sh_elf_local_funcdesc (abfd);
6363 if (local_funcdesc == NULL)
6367 size = symtab_hdr->sh_info * sizeof (union gotref);
6368 #ifdef INCLUDE_SHMEDIA
6369 /* Count datalabel local GOT. */
6372 local_funcdesc = (union gotref *) bfd_zalloc (abfd, size);
6373 if (local_funcdesc == NULL)
6375 sh_elf_local_funcdesc (abfd) = local_funcdesc;
6377 local_funcdesc[r_symndx].refcount += 1;
6379 if (r_type == R_SH_FUNCDESC)
6382 htab->srofixup->size += 4;
6384 htab->srelgot->size += sizeof (Elf32_External_Rela);
6389 sh_elf_hash_entry (h)->funcdesc.refcount++;
6390 if (r_type == R_SH_FUNCDESC)
6391 sh_elf_hash_entry (h)->abs_funcdesc_refcount++;
6393 /* If there is a function descriptor reference, then
6394 there should not be any non-FDPIC references. */
6395 old_got_type = sh_elf_hash_entry (h)->got_type;
6396 if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN)
6398 if (old_got_type == GOT_NORMAL)
6399 (*_bfd_error_handler)
6400 (_("%B: `%s' accessed both as normal and FDPIC symbol"),
6401 abfd, h->root.root.string);
6403 (*_bfd_error_handler)
6404 (_("%B: `%s' accessed both as FDPIC and thread local symbol"),
6405 abfd, h->root.root.string);
6411 #ifdef INCLUDE_SHMEDIA
6412 case R_SH_GOTPLT_LOW16:
6413 case R_SH_GOTPLT_MEDLOW16:
6414 case R_SH_GOTPLT_MEDHI16:
6415 case R_SH_GOTPLT_HI16:
6416 case R_SH_GOTPLT10BY4:
6417 case R_SH_GOTPLT10BY8:
6419 /* If this is a local symbol, we resolve it directly without
6420 creating a procedure linkage table entry. */
6426 || h->dynindx == -1)
6430 h->plt.refcount += 1;
6431 ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1;
6436 #ifdef INCLUDE_SHMEDIA
6437 case R_SH_PLT_LOW16:
6438 case R_SH_PLT_MEDLOW16:
6439 case R_SH_PLT_MEDHI16:
6442 /* This symbol requires a procedure linkage table entry. We
6443 actually build the entry in adjust_dynamic_symbol,
6444 because this might be a case of linking PIC code which is
6445 never referenced by a dynamic object, in which case we
6446 don't need to generate a procedure linkage table entry
6449 /* If this is a local symbol, we resolve it directly without
6450 creating a procedure linkage table entry. */
6454 if (h->forced_local)
6458 h->plt.refcount += 1;
6463 #ifdef INCLUDE_SHMEDIA
6464 case R_SH_IMM_LOW16_PCREL:
6465 case R_SH_IMM_MEDLOW16_PCREL:
6466 case R_SH_IMM_MEDHI16_PCREL:
6467 case R_SH_IMM_HI16_PCREL:
6469 if (h != NULL && ! info->shared)
6472 h->plt.refcount += 1;
6475 /* If we are creating a shared library, and this is a reloc
6476 against a global symbol, or a non PC relative reloc
6477 against a local symbol, then we need to copy the reloc
6478 into the shared library. However, if we are linking with
6479 -Bsymbolic, we do not need to copy a reloc against a
6480 global symbol which is defined in an object we are
6481 including in the link (i.e., DEF_REGULAR is set). At
6482 this point we have not seen all the input files, so it is
6483 possible that DEF_REGULAR is not set now but will be set
6484 later (it is never cleared). We account for that
6485 possibility below by storing information in the
6486 dyn_relocs field of the hash table entry. A similar
6487 situation occurs when creating shared libraries and symbol
6488 visibility changes render the symbol local.
6490 If on the other hand, we are creating an executable, we
6491 may need to keep relocations for symbols satisfied by a
6492 dynamic library if we manage to avoid copy relocs for the
6495 && (sec->flags & SEC_ALLOC) != 0
6496 && (r_type != R_SH_REL32
6498 && (! info->symbolic
6499 || h->root.type == bfd_link_hash_defweak
6500 || !h->def_regular))))
6502 && (sec->flags & SEC_ALLOC) != 0
6504 && (h->root.type == bfd_link_hash_defweak
6505 || !h->def_regular)))
6507 struct elf_sh_dyn_relocs *p;
6508 struct elf_sh_dyn_relocs **head;
6510 if (htab->root.dynobj == NULL)
6511 htab->root.dynobj = abfd;
6513 /* When creating a shared object, we must copy these
6514 reloc types into the output file. We create a reloc
6515 section in dynobj and make room for this reloc. */
6518 sreloc = _bfd_elf_make_dynamic_reloc_section
6519 (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE);
6525 /* If this is a global symbol, we count the number of
6526 relocations we need for this symbol. */
6528 head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs;
6531 /* Track dynamic relocs needed for local syms too. */
6534 Elf_Internal_Sym *isym;
6536 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
6541 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
6545 vpp = &elf_section_data (s)->local_dynrel;
6546 head = (struct elf_sh_dyn_relocs **) vpp;
6550 if (p == NULL || p->sec != sec)
6552 bfd_size_type amt = sizeof (*p);
6553 p = bfd_alloc (htab->root.dynobj, amt);
6564 if (r_type == R_SH_REL32
6565 #ifdef INCLUDE_SHMEDIA
6566 || r_type == R_SH_IMM_LOW16_PCREL
6567 || r_type == R_SH_IMM_MEDLOW16_PCREL
6568 || r_type == R_SH_IMM_MEDHI16_PCREL
6569 || r_type == R_SH_IMM_HI16_PCREL
6575 /* Allocate the fixup regardless of whether we need a relocation.
6576 If we end up generating the relocation, we'll unallocate the
6578 if (htab->fdpic_p && !info->shared
6579 && r_type == R_SH_DIR32
6580 && (sec->flags & SEC_ALLOC) != 0)
6581 htab->srofixup->size += 4;
6584 case R_SH_TLS_LE_32:
6585 if (info->shared && !info->pie)
6587 (*_bfd_error_handler)
6588 (_("%B: TLS local exec code cannot be linked into shared objects"),
6595 case R_SH_TLS_LDO_32:
6596 /* Nothing to do. */
6607 #ifndef sh_elf_set_mach_from_flags
6608 static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE };
6611 sh_elf_set_mach_from_flags (bfd *abfd)
6613 flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK;
6615 if (flags >= sizeof(sh_ef_bfd_table))
6618 if (sh_ef_bfd_table[flags] == 0)
6621 bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]);
6627 /* Reverse table lookup for sh_ef_bfd_table[].
6628 Given a bfd MACH value from archures.c
6629 return the equivalent ELF flags from the table.
6630 Return -1 if no match is found. */
6633 sh_elf_get_flags_from_mach (unsigned long mach)
6635 int i = ARRAY_SIZE (sh_ef_bfd_table) - 1;
6638 if (sh_ef_bfd_table[i] == mach)
6641 /* shouldn't get here */
6646 #endif /* not sh_elf_set_mach_from_flags */
6648 #ifndef sh_elf_set_private_flags
6649 /* Function to keep SH specific file flags. */
6652 sh_elf_set_private_flags (bfd *abfd, flagword flags)
6654 BFD_ASSERT (! elf_flags_init (abfd)
6655 || elf_elfheader (abfd)->e_flags == flags);
6657 elf_elfheader (abfd)->e_flags = flags;
6658 elf_flags_init (abfd) = TRUE;
6659 return sh_elf_set_mach_from_flags (abfd);
6661 #endif /* not sh_elf_set_private_flags */
6663 #ifndef sh_elf_copy_private_data
6664 /* Copy backend specific data from one object module to another */
6667 sh_elf_copy_private_data (bfd * ibfd, bfd * obfd)
6669 /* Copy object attributes. */
6670 _bfd_elf_copy_obj_attributes (ibfd, obfd);
6672 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
6675 /* Copy the stack size. */
6676 if (elf_tdata (ibfd)->phdr && elf_tdata (obfd)->phdr
6677 && fdpic_object_p (ibfd) && fdpic_object_p (obfd))
6681 for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++)
6682 if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK)
6684 Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i];
6686 for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++)
6687 if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK)
6689 memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr));
6691 /* Rewrite the phdrs, since we're only called after they
6692 were first written. */
6694 (bfd_signed_vma) get_elf_backend_data (obfd)
6695 ->s->sizeof_ehdr, SEEK_SET) != 0
6696 || get_elf_backend_data (obfd)->s
6697 ->write_out_phdrs (obfd, elf_tdata (obfd)->phdr,
6698 elf_elfheader (obfd)->e_phnum) != 0)
6707 return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
6709 #endif /* not sh_elf_copy_private_data */
6711 #ifndef sh_elf_merge_private_data
6713 /* This function returns the ELF architecture number that
6714 corresponds to the given arch_sh* flags. */
6717 sh_find_elf_flags (unsigned int arch_set)
6719 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
6720 unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set);
6722 return sh_elf_get_flags_from_mach (bfd_mach);
6725 /* This routine initialises the elf flags when required and
6726 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
6729 sh_elf_merge_private_data (bfd *ibfd, bfd *obfd)
6731 extern bfd_boolean sh_merge_bfd_arch (bfd *, bfd *);
6733 if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd))
6736 if (! elf_flags_init (obfd))
6738 /* This happens when ld starts out with a 'blank' output file. */
6739 elf_flags_init (obfd) = TRUE;
6740 elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
6741 sh_elf_set_mach_from_flags (obfd);
6742 if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC)
6743 elf_elfheader (obfd)->e_flags |= EF_SH_PIC;
6746 if (! sh_merge_bfd_arch (ibfd, obfd))
6748 _bfd_error_handler ("%B: uses instructions which are incompatible "
6749 "with instructions used in previous modules",
6751 bfd_set_error (bfd_error_bad_value);
6755 elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK;
6756 elf_elfheader (obfd)->e_flags |=
6757 sh_elf_get_flags_from_mach (bfd_get_mach (obfd));
6759 if (fdpic_object_p (ibfd) != fdpic_object_p (obfd))
6761 _bfd_error_handler ("%B: attempt to mix FDPIC and non-FDPIC objects",
6763 bfd_set_error (bfd_error_bad_value);
6769 #endif /* not sh_elf_merge_private_data */
6771 /* Override the generic function because we need to store sh_elf_obj_tdata
6772 as the specific tdata. We set also the machine architecture from flags
6776 sh_elf_object_p (bfd *abfd)
6778 if (! sh_elf_set_mach_from_flags (abfd))
6781 return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0)
6782 == fdpic_object_p (abfd));
6785 /* Finish up dynamic symbol handling. We set the contents of various
6786 dynamic sections here. */
6789 sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info,
6790 struct elf_link_hash_entry *h,
6791 Elf_Internal_Sym *sym)
6793 struct elf_sh_link_hash_table *htab;
6795 htab = sh_elf_hash_table (info);
6799 if (h->plt.offset != (bfd_vma) -1)
6807 Elf_Internal_Rela rel;
6809 const struct elf_sh_plt_info *plt_info;
6811 /* This symbol has an entry in the procedure linkage table. Set
6814 BFD_ASSERT (h->dynindx != -1);
6817 sgotplt = htab->sgotplt;
6818 srelplt = htab->srelplt;
6819 BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL);
6821 /* Get the index in the procedure linkage table which
6822 corresponds to this symbol. This is the index of this symbol
6823 in all the symbols for which we are making plt entries. The
6824 first entry in the procedure linkage table is reserved. */
6825 plt_index = get_plt_index (htab->plt_info, h->plt.offset);
6827 plt_info = htab->plt_info;
6828 if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT)
6829 plt_info = plt_info->short_plt;
6831 /* Get the offset into the .got table of the entry that
6832 corresponds to this function. */
6834 /* The offset must be relative to the GOT symbol, twelve bytes
6835 before the end of .got.plt. Each descriptor is eight
6837 got_offset = plt_index * 8 + 12 - sgotplt->size;
6839 /* Each .got entry is 4 bytes. The first three are
6841 got_offset = (plt_index + 3) * 4;
6845 got_offset -= GOT_BIAS;
6848 /* Fill in the entry in the procedure linkage table. */
6849 memcpy (splt->contents + h->plt.offset,
6850 plt_info->symbol_entry,
6851 plt_info->symbol_entry_size);
6853 if (info->shared || htab->fdpic_p)
6855 if (plt_info->symbol_fields.got20)
6857 bfd_reloc_status_type r;
6858 r = install_movi20_field (output_bfd, got_offset,
6859 splt->owner, splt, splt->contents,
6861 + plt_info->symbol_fields.got_entry);
6862 BFD_ASSERT (r == bfd_reloc_ok);
6865 install_plt_field (output_bfd, FALSE, got_offset,
6868 + plt_info->symbol_fields.got_entry));
6872 BFD_ASSERT (!plt_info->symbol_fields.got20);
6874 install_plt_field (output_bfd, FALSE,
6875 (sgotplt->output_section->vma
6876 + sgotplt->output_offset
6880 + plt_info->symbol_fields.got_entry));
6881 if (htab->vxworks_p)
6883 unsigned int reachable_plts, plts_per_4k;
6886 /* Divide the PLT into groups. The first group contains
6887 REACHABLE_PLTS entries and the other groups contain
6888 PLTS_PER_4K entries. Entries in the first group can
6889 branch directly to .plt; those in later groups branch
6890 to the last element of the previous group. */
6891 /* ??? It would be better to create multiple copies of
6892 the common resolver stub. */
6893 reachable_plts = ((4096
6894 - plt_info->plt0_entry_size
6895 - (plt_info->symbol_fields.plt + 4))
6896 / plt_info->symbol_entry_size) + 1;
6897 plts_per_4k = (4096 / plt_info->symbol_entry_size);
6898 if (plt_index < reachable_plts)
6899 distance = -(h->plt.offset
6900 + plt_info->symbol_fields.plt);
6902 distance = -(((plt_index - reachable_plts) % plts_per_4k + 1)
6903 * plt_info->symbol_entry_size);
6905 /* Install the 'bra' with this offset. */
6906 bfd_put_16 (output_bfd,
6907 0xa000 | (0x0fff & ((distance - 4) / 2)),
6910 + plt_info->symbol_fields.plt));
6913 install_plt_field (output_bfd, TRUE,
6914 splt->output_section->vma + splt->output_offset,
6917 + plt_info->symbol_fields.plt));
6920 /* Make got_offset relative to the start of .got.plt. */
6923 got_offset += GOT_BIAS;
6926 got_offset = plt_index * 8;
6928 if (plt_info->symbol_fields.reloc_offset != MINUS_ONE)
6929 install_plt_field (output_bfd, FALSE,
6930 plt_index * sizeof (Elf32_External_Rela),
6933 + plt_info->symbol_fields.reloc_offset));
6935 /* Fill in the entry in the global offset table. */
6936 bfd_put_32 (output_bfd,
6937 (splt->output_section->vma
6938 + splt->output_offset
6940 + plt_info->symbol_resolve_offset),
6941 sgotplt->contents + got_offset);
6943 bfd_put_32 (output_bfd,
6944 sh_elf_osec_to_segment (output_bfd,
6945 htab->splt->output_section),
6946 sgotplt->contents + got_offset + 4);
6948 /* Fill in the entry in the .rela.plt section. */
6949 rel.r_offset = (sgotplt->output_section->vma
6950 + sgotplt->output_offset
6953 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE);
6955 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT);
6958 rel.r_addend = GOT_BIAS;
6960 loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela);
6961 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6963 if (htab->vxworks_p && !info->shared)
6965 /* Create the .rela.plt.unloaded relocations for this PLT entry.
6966 Begin by pointing LOC to the first such relocation. */
6967 loc = (htab->srelplt2->contents
6968 + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela));
6970 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
6971 for the PLT entry's pointer to the .got.plt entry. */
6972 rel.r_offset = (htab->splt->output_section->vma
6973 + htab->splt->output_offset
6975 + plt_info->symbol_fields.got_entry);
6976 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
6977 rel.r_addend = got_offset;
6978 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
6979 loc += sizeof (Elf32_External_Rela);
6981 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
6982 the .got.plt entry, which initially points to .plt. */
6983 rel.r_offset = (sgotplt->output_section->vma
6984 + sgotplt->output_offset
6986 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32);
6988 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
6991 if (!h->def_regular)
6993 /* Mark the symbol as undefined, rather than as defined in
6994 the .plt section. Leave the value alone. */
6995 sym->st_shndx = SHN_UNDEF;
6999 if (h->got.offset != (bfd_vma) -1
7000 && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD
7001 && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE
7002 && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC)
7006 Elf_Internal_Rela rel;
7009 /* This symbol has an entry in the global offset table. Set it
7013 srelgot = htab->srelgot;
7014 BFD_ASSERT (sgot != NULL && srelgot != NULL);
7016 rel.r_offset = (sgot->output_section->vma
7017 + sgot->output_offset
7018 + (h->got.offset &~ (bfd_vma) 1));
7020 /* If this is a static link, or it is a -Bsymbolic link and the
7021 symbol is defined locally or was forced to be local because
7022 of a version file, we just want to emit a RELATIVE reloc.
7023 The entry in the global offset table will already have been
7024 initialized in the relocate_section function. */
7026 && SYMBOL_REFERENCES_LOCAL (info, h))
7030 asection *sec = h->root.u.def.section;
7032 = elf_section_data (sec->output_section)->dynindx;
7034 rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
7035 rel.r_addend = (h->root.u.def.value
7036 + h->root.u.def.section->output_offset);
7040 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
7041 rel.r_addend = (h->root.u.def.value
7042 + h->root.u.def.section->output_section->vma
7043 + h->root.u.def.section->output_offset);
7048 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
7049 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
7053 loc = srelgot->contents;
7054 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
7055 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
7058 #ifdef INCLUDE_SHMEDIA
7060 struct elf_sh_link_hash_entry *eh;
7062 eh = (struct elf_sh_link_hash_entry *) h;
7063 if (eh->datalabel_got.offset != (bfd_vma) -1)
7067 Elf_Internal_Rela rel;
7070 /* This symbol has a datalabel entry in the global offset table.
7074 srelgot = htab->srelgot;
7075 BFD_ASSERT (sgot != NULL && srelgot != NULL);
7077 rel.r_offset = (sgot->output_section->vma
7078 + sgot->output_offset
7079 + (eh->datalabel_got.offset &~ (bfd_vma) 1));
7081 /* If this is a static link, or it is a -Bsymbolic link and the
7082 symbol is defined locally or was forced to be local because
7083 of a version file, we just want to emit a RELATIVE reloc.
7084 The entry in the global offset table will already have been
7085 initialized in the relocate_section function. */
7087 && SYMBOL_REFERENCES_LOCAL (info, h))
7091 asection *sec = h->root.u.def.section;
7093 = elf_section_data (sec->output_section)->dynindx;
7095 rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32);
7096 rel.r_addend = (h->root.u.def.value
7097 + h->root.u.def.section->output_offset);
7101 rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE);
7102 rel.r_addend = (h->root.u.def.value
7103 + h->root.u.def.section->output_section->vma
7104 + h->root.u.def.section->output_offset);
7109 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents
7110 + eh->datalabel_got.offset);
7111 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT);
7115 loc = srelgot->contents;
7116 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
7117 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
7125 Elf_Internal_Rela rel;
7128 /* This symbol needs a copy reloc. Set it up. */
7130 BFD_ASSERT (h->dynindx != -1
7131 && (h->root.type == bfd_link_hash_defined
7132 || h->root.type == bfd_link_hash_defweak));
7134 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
7135 BFD_ASSERT (s != NULL);
7137 rel.r_offset = (h->root.u.def.value
7138 + h->root.u.def.section->output_section->vma
7139 + h->root.u.def.section->output_offset);
7140 rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY);
7142 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
7143 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
7146 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
7147 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
7149 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
7150 || (!htab->vxworks_p && h == htab->root.hgot))
7151 sym->st_shndx = SHN_ABS;
7156 /* Finish up the dynamic sections. */
7159 sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
7161 struct elf_sh_link_hash_table *htab;
7165 htab = sh_elf_hash_table (info);
7169 sgotplt = htab->sgotplt;
7170 sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic");
7172 if (htab->root.dynamic_sections_created)
7175 Elf32_External_Dyn *dyncon, *dynconend;
7177 BFD_ASSERT (sgotplt != NULL && sdyn != NULL);
7179 dyncon = (Elf32_External_Dyn *) sdyn->contents;
7180 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
7181 for (; dyncon < dynconend; dyncon++)
7183 Elf_Internal_Dyn dyn;
7185 #ifdef INCLUDE_SHMEDIA
7189 bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn);
7195 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
7196 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7199 #ifdef INCLUDE_SHMEDIA
7201 name = info->init_function;
7205 name = info->fini_function;
7207 if (dyn.d_un.d_val != 0)
7209 struct elf_link_hash_entry *h;
7211 h = elf_link_hash_lookup (&htab->root, name,
7212 FALSE, FALSE, TRUE);
7213 if (h != NULL && (h->other & STO_SH5_ISA32))
7215 dyn.d_un.d_val |= 1;
7216 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7223 BFD_ASSERT (htab->root.hgot != NULL);
7224 s = htab->root.hgot->root.u.def.section;
7225 dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value
7226 + s->output_section->vma + s->output_offset;
7227 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7231 s = htab->srelplt->output_section;
7232 BFD_ASSERT (s != NULL);
7233 dyn.d_un.d_ptr = s->vma;
7234 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7238 s = htab->srelplt->output_section;
7239 BFD_ASSERT (s != NULL);
7240 dyn.d_un.d_val = s->size;
7241 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7245 /* My reading of the SVR4 ABI indicates that the
7246 procedure linkage table relocs (DT_JMPREL) should be
7247 included in the overall relocs (DT_RELA). This is
7248 what Solaris does. However, UnixWare can not handle
7249 that case. Therefore, we override the DT_RELASZ entry
7250 here to make it not include the JMPREL relocs. Since
7251 the linker script arranges for .rela.plt to follow all
7252 other relocation sections, we don't have to worry
7253 about changing the DT_RELA entry. */
7254 if (htab->srelplt != NULL)
7256 s = htab->srelplt->output_section;
7257 dyn.d_un.d_val -= s->size;
7259 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
7264 /* Fill in the first entry in the procedure linkage table. */
7266 if (splt && splt->size > 0 && htab->plt_info->plt0_entry)
7270 memcpy (splt->contents,
7271 htab->plt_info->plt0_entry,
7272 htab->plt_info->plt0_entry_size);
7273 for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++)
7274 if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE)
7275 install_plt_field (output_bfd, FALSE,
7276 (sgotplt->output_section->vma
7277 + sgotplt->output_offset
7280 + htab->plt_info->plt0_got_fields[i]));
7282 if (htab->vxworks_p)
7284 /* Finalize the .rela.plt.unloaded contents. */
7285 Elf_Internal_Rela rel;
7288 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
7289 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
7290 loc = htab->srelplt2->contents;
7291 rel.r_offset = (splt->output_section->vma
7292 + splt->output_offset
7293 + htab->plt_info->plt0_got_fields[2]);
7294 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32);
7296 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
7297 loc += sizeof (Elf32_External_Rela);
7299 /* Fix up the remaining .rela.plt.unloaded relocations.
7300 They may have the wrong symbol index for _G_O_T_ or
7301 _P_L_T_ depending on the order in which symbols were
7303 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
7305 /* The PLT entry's pointer to the .got.plt slot. */
7306 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7307 rel.r_info = ELF32_R_INFO (htab->root.hgot->indx,
7309 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7310 loc += sizeof (Elf32_External_Rela);
7312 /* The .got.plt slot's pointer to .plt. */
7313 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
7314 rel.r_info = ELF32_R_INFO (htab->root.hplt->indx,
7316 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
7317 loc += sizeof (Elf32_External_Rela);
7321 /* UnixWare sets the entsize of .plt to 4, although that doesn't
7322 really seem like the right value. */
7323 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
7327 /* Fill in the first three entries in the global offset table. */
7328 if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p)
7331 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents);
7333 bfd_put_32 (output_bfd,
7334 sdyn->output_section->vma + sdyn->output_offset,
7336 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4);
7337 bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8);
7340 if (sgotplt && sgotplt->size > 0)
7341 elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4;
7343 /* At the very end of the .rofixup section is a pointer to the GOT. */
7344 if (htab->fdpic_p && htab->srofixup != NULL)
7346 struct elf_link_hash_entry *hgot = htab->root.hgot;
7347 bfd_vma got_value = hgot->root.u.def.value
7348 + hgot->root.u.def.section->output_section->vma
7349 + hgot->root.u.def.section->output_offset;
7351 sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value);
7353 /* Make sure we allocated and generated the same number of fixups. */
7354 BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size);
7357 if (htab->srelfuncdesc)
7358 BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela)
7359 == htab->srelfuncdesc->size);
7362 BFD_ASSERT (htab->srelgot->reloc_count * sizeof (Elf32_External_Rela)
7363 == htab->srelgot->size);
7368 static enum elf_reloc_type_class
7369 sh_elf_reloc_type_class (const Elf_Internal_Rela *rela)
7371 switch ((int) ELF32_R_TYPE (rela->r_info))
7374 return reloc_class_relative;
7376 return reloc_class_plt;
7378 return reloc_class_copy;
7380 return reloc_class_normal;
7384 #if !defined SH_TARGET_ALREADY_DEFINED
7385 /* Support for Linux core dump NOTE sections. */
7388 elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
7393 switch (note->descsz)
7398 case 168: /* Linux/SH */
7400 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
7403 elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
7412 /* Make a ".reg/999" section. */
7413 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
7414 size, note->descpos + offset);
7418 elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
7420 switch (note->descsz)
7425 case 124: /* Linux/SH elf_prpsinfo */
7426 elf_tdata (abfd)->core_program
7427 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
7428 elf_tdata (abfd)->core_command
7429 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
7432 /* Note that for some reason, a spurious space is tacked
7433 onto the end of the args in some (at least one anyway)
7434 implementations, so strip it off if it exists. */
7437 char *command = elf_tdata (abfd)->core_command;
7438 int n = strlen (command);
7440 if (0 < n && command[n - 1] == ' ')
7441 command[n - 1] = '\0';
7446 #endif /* not SH_TARGET_ALREADY_DEFINED */
7449 /* Return address for Ith PLT stub in section PLT, for relocation REL
7450 or (bfd_vma) -1 if it should not be included. */
7453 sh_elf_plt_sym_val (bfd_vma i, const asection *plt,
7454 const arelent *rel ATTRIBUTE_UNUSED)
7456 const struct elf_sh_plt_info *plt_info;
7458 plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0);
7459 return plt->vma + get_plt_offset (plt_info, i);
7462 /* Decide whether to attempt to turn absptr or lsda encodings in
7463 shared libraries into pcrel within the given input section. */
7466 sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED,
7467 struct bfd_link_info *info,
7468 asection *eh_frame_section ATTRIBUTE_UNUSED)
7470 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
7472 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
7479 /* Adjust the contents of an eh_frame_hdr section before they're output. */
7482 sh_elf_encode_eh_address (bfd *abfd,
7483 struct bfd_link_info *info,
7484 asection *osec, bfd_vma offset,
7485 asection *loc_sec, bfd_vma loc_offset,
7488 struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info);
7489 struct elf_link_hash_entry *h;
7492 return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec,
7493 loc_offset, encoded);
7495 h = htab->root.hgot;
7496 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
7498 if (! h || (sh_elf_osec_to_segment (abfd, osec)
7499 == sh_elf_osec_to_segment (abfd, loc_sec->output_section)))
7500 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
7501 loc_sec, loc_offset, encoded);
7503 BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec)
7504 == (sh_elf_osec_to_segment
7505 (abfd, h->root.u.def.section->output_section)));
7507 *encoded = osec->vma + offset
7508 - (h->root.u.def.value
7509 + h->root.u.def.section->output_section->vma
7510 + h->root.u.def.section->output_offset);
7512 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
7515 #if !defined SH_TARGET_ALREADY_DEFINED
7516 #define TARGET_BIG_SYM bfd_elf32_sh_vec
7517 #define TARGET_BIG_NAME "elf32-sh"
7518 #define TARGET_LITTLE_SYM bfd_elf32_shl_vec
7519 #define TARGET_LITTLE_NAME "elf32-shl"
7522 #define ELF_ARCH bfd_arch_sh
7523 #define ELF_TARGET_ID SH_ELF_DATA
7524 #define ELF_MACHINE_CODE EM_SH
7525 #ifdef __QNXTARGET__
7526 #define ELF_MAXPAGESIZE 0x1000
7528 #define ELF_MAXPAGESIZE 0x80
7531 #define elf_symbol_leading_char '_'
7533 #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
7534 #define bfd_elf32_bfd_reloc_name_lookup \
7535 sh_elf_reloc_name_lookup
7536 #define elf_info_to_howto sh_elf_info_to_howto
7537 #define bfd_elf32_bfd_relax_section sh_elf_relax_section
7538 #define elf_backend_relocate_section sh_elf_relocate_section
7539 #define bfd_elf32_bfd_get_relocated_section_contents \
7540 sh_elf_get_relocated_section_contents
7541 #define bfd_elf32_mkobject sh_elf_mkobject
7542 #define elf_backend_object_p sh_elf_object_p
7543 #define bfd_elf32_bfd_set_private_bfd_flags \
7544 sh_elf_set_private_flags
7545 #define bfd_elf32_bfd_copy_private_bfd_data \
7546 sh_elf_copy_private_data
7547 #define bfd_elf32_bfd_merge_private_bfd_data \
7548 sh_elf_merge_private_data
7550 #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
7551 #define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
7552 #define elf_backend_check_relocs sh_elf_check_relocs
7553 #define elf_backend_copy_indirect_symbol \
7554 sh_elf_copy_indirect_symbol
7555 #define elf_backend_create_dynamic_sections \
7556 sh_elf_create_dynamic_sections
7557 #define bfd_elf32_bfd_link_hash_table_create \
7558 sh_elf_link_hash_table_create
7559 #define elf_backend_adjust_dynamic_symbol \
7560 sh_elf_adjust_dynamic_symbol
7561 #define elf_backend_always_size_sections \
7562 sh_elf_always_size_sections
7563 #define elf_backend_size_dynamic_sections \
7564 sh_elf_size_dynamic_sections
7565 #define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
7566 #define elf_backend_finish_dynamic_symbol \
7567 sh_elf_finish_dynamic_symbol
7568 #define elf_backend_finish_dynamic_sections \
7569 sh_elf_finish_dynamic_sections
7570 #define elf_backend_reloc_type_class sh_elf_reloc_type_class
7571 #define elf_backend_plt_sym_val sh_elf_plt_sym_val
7572 #define elf_backend_can_make_relative_eh_frame \
7573 sh_elf_use_relative_eh_frame
7574 #define elf_backend_can_make_lsda_relative_eh_frame \
7575 sh_elf_use_relative_eh_frame
7576 #define elf_backend_encode_eh_address \
7577 sh_elf_encode_eh_address
7579 #define elf_backend_can_gc_sections 1
7580 #define elf_backend_can_refcount 1
7581 #define elf_backend_want_got_plt 1
7582 #define elf_backend_plt_readonly 1
7583 #define elf_backend_want_plt_sym 0
7584 #define elf_backend_got_header_size 12
7586 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
7588 #include "elf32-target.h"
7590 /* NetBSD support. */
7591 #undef TARGET_BIG_SYM
7592 #define TARGET_BIG_SYM bfd_elf32_shnbsd_vec
7593 #undef TARGET_BIG_NAME
7594 #define TARGET_BIG_NAME "elf32-sh-nbsd"
7595 #undef TARGET_LITTLE_SYM
7596 #define TARGET_LITTLE_SYM bfd_elf32_shlnbsd_vec
7597 #undef TARGET_LITTLE_NAME
7598 #define TARGET_LITTLE_NAME "elf32-shl-nbsd"
7599 #undef ELF_MAXPAGESIZE
7600 #define ELF_MAXPAGESIZE 0x10000
7601 #undef ELF_COMMONPAGESIZE
7602 #undef elf_symbol_leading_char
7603 #define elf_symbol_leading_char 0
7605 #define elf32_bed elf32_sh_nbsd_bed
7607 #include "elf32-target.h"
7610 /* Linux support. */
7611 #undef TARGET_BIG_SYM
7612 #define TARGET_BIG_SYM bfd_elf32_shblin_vec
7613 #undef TARGET_BIG_NAME
7614 #define TARGET_BIG_NAME "elf32-shbig-linux"
7615 #undef TARGET_LITTLE_SYM
7616 #define TARGET_LITTLE_SYM bfd_elf32_shlin_vec
7617 #undef TARGET_LITTLE_NAME
7618 #define TARGET_LITTLE_NAME "elf32-sh-linux"
7619 #undef ELF_COMMONPAGESIZE
7620 #define ELF_COMMONPAGESIZE 0x1000
7622 #undef elf_backend_grok_prstatus
7623 #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
7624 #undef elf_backend_grok_psinfo
7625 #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
7627 #define elf32_bed elf32_sh_lin_bed
7629 #include "elf32-target.h"
7632 /* FDPIC support. */
7633 #undef TARGET_BIG_SYM
7634 #define TARGET_BIG_SYM bfd_elf32_shbfd_vec
7635 #undef TARGET_BIG_NAME
7636 #define TARGET_BIG_NAME "elf32-shbig-fdpic"
7637 #undef TARGET_LITTLE_SYM
7638 #define TARGET_LITTLE_SYM bfd_elf32_shfd_vec
7639 #undef TARGET_LITTLE_NAME
7640 #define TARGET_LITTLE_NAME "elf32-sh-fdpic"
7641 #undef elf_backend_modify_program_headers
7642 #define elf_backend_modify_program_headers \
7643 sh_elf_modify_program_headers
7646 #define elf32_bed elf32_sh_fd_bed
7648 #include "elf32-target.h"
7650 #undef elf_backend_modify_program_headers
7652 /* VxWorks support. */
7653 #undef TARGET_BIG_SYM
7654 #define TARGET_BIG_SYM bfd_elf32_shvxworks_vec
7655 #undef TARGET_BIG_NAME
7656 #define TARGET_BIG_NAME "elf32-sh-vxworks"
7657 #undef TARGET_LITTLE_SYM
7658 #define TARGET_LITTLE_SYM bfd_elf32_shlvxworks_vec
7659 #undef TARGET_LITTLE_NAME
7660 #define TARGET_LITTLE_NAME "elf32-shl-vxworks"
7662 #define elf32_bed elf32_sh_vxworks_bed
7664 #undef elf_backend_want_plt_sym
7665 #define elf_backend_want_plt_sym 1
7666 #undef elf_symbol_leading_char
7667 #define elf_symbol_leading_char '_'
7668 #define elf_backend_want_got_underscore 1
7669 #undef elf_backend_grok_prstatus
7670 #undef elf_backend_grok_psinfo
7671 #undef elf_backend_add_symbol_hook
7672 #define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
7673 #undef elf_backend_link_output_symbol_hook
7674 #define elf_backend_link_output_symbol_hook \
7675 elf_vxworks_link_output_symbol_hook
7676 #undef elf_backend_emit_relocs
7677 #define elf_backend_emit_relocs elf_vxworks_emit_relocs
7678 #undef elf_backend_final_write_processing
7679 #define elf_backend_final_write_processing \
7680 elf_vxworks_final_write_processing
7681 #undef ELF_MAXPAGESIZE
7682 #define ELF_MAXPAGESIZE 0x1000
7683 #undef ELF_COMMONPAGESIZE
7685 #include "elf32-target.h"
7687 #endif /* neither INCLUDE_SHMEDIA nor SH_TARGET_ALREADY_DEFINED */